The version of kernel installed on the remote host is prior to 4.14.276-211.499. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2024-2569 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl (CVE-2021-47634)

    A use-after-free flaw was found in the Linux kernel's FUSE filesystem in the way a user triggers write().
    This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in     privilege escalation. (CVE-2022-1011)

    A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel. This     flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a     leak of internal kernel information. (CVE-2022-1353)

    A flaw was found in the Linux kernel implementation of proxied virtualized TPM devices. On a system where     virtualized TPM devices are configured (this is not the default) a local attacker can create a use-after-     free and create a situation where it may be possible to escalate privileges on the system. (CVE-2022-2977)

    A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in     progress to detach in sl_tx_timeout in drivers/net/slip/slip.c. This issue could allow an attacker to     crash the system or leak internal kernel information. (CVE-2022-41858)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: target: tcmu: Fix possible page UAF (CVE-2022-49053)

    In the Linux kernel, the following vulnerability has been resolved:

    cifs: potential buffer overflow in handling symlinks (CVE-2022-49058)

    In the Linux kernel, the following vulnerability has been resolved:

    veth: Ensure eth header is in skb's linear part (CVE-2022-49066)

    In the Linux kernel, the following vulnerability has been resolved:

    btrfs: fix qgroup reserve overflow the qgroup limit (CVE-2022-49075)

    In the Linux kernel, the following vulnerability has been resolved:

    mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0) (CVE-2022-49077)

    In the Linux kernel, the following vulnerability has been resolved:

    mm/mempolicy: fix mpol_new leak in shared_policy_replace (CVE-2022-49080)

    In the Linux kernel, the following vulnerability has been resolved:

    drbd: Fix five use after free bugs in get_initial_state (CVE-2022-49085)

    In the Linux kernel, the following vulnerability has been resolved:

    virtio_console: eliminate anonymous module_init & module_exit (CVE-2022-49100)

    In the Linux kernel, the following vulnerability has been resolved:

    Bluetooth: Fix use after free in hci_send_acl (CVE-2022-49111)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: libfc: Fix use after free in fc_exch_abts_resp() (CVE-2022-49114)

    In the Linux kernel, the following vulnerability has been resolved:

    dm ioctl: prevent potential spectre v1 gadget (CVE-2022-49122)

    In the Linux kernel, the following vulnerability has been resolved:

    ACPI: CPPC: Avoid out of bounds access when parsing _CPC data (CVE-2022-49145)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: qla2xxx: Suppress a kernel complaint in qla_create_qpair() (CVE-2022-49155)

    In the Linux kernel, the following vulnerability has been resolved:

    ntfs: add sanity check on allocation size (CVE-2022-49166)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: don't BUG if someone dirty pages without asking ext4 first (CVE-2022-49171)

    In the Linux kernel, the following vulnerability has been resolved:

    PM: core: keep irq flags in device_pm_check_callbacks() (CVE-2022-49175)

    In the Linux kernel, the following vulnerability has been resolved:

    af_netlink: Fix shift out of bounds in group mask calculation (CVE-2022-49197)

    In the Linux kernel, the following vulnerability has been resolved:

    power: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init (CVE-2022-49224)

    In the Linux kernel, the following vulnerability has been resolved:

    NFSD: prevent underflow in nfssvc_decode_writeargs() (CVE-2022-49280)

    In the Linux kernel, the following vulnerability has been resolved:

    tpm: fix reference counting for struct tpm_chip (CVE-2022-49287)

    A flaw that boot CPU could be vulnerable for the speculative execution behavior kind of attacks in the     Linux kernel X86 CPU Power management options functionality was found in the way user resuming CPU from     suspend-to-RAM. A local user could use this flaw to potentially get unauthorized access to some memory of     the CPU similar to the speculative execution behavior kind of attacks. (CVE-2023-1637)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    cifs: Fix UAF in cifs_demultiplex_thread().(CVE-2023-52572)

    xsk: fix OOB map writes when deleting elements(CVE-2024-56614)

    net: defer final 'struct net' free in netns dismantle(CVE-2024-56658)

    af_packet: avoid erroring out after sock_init_data() in packet_create().(CVE-2024-56606)

    quota: flush quota_release_work upon quota writeback(CVE-2024-56780)

    mm: hugetlb: independent PMD page table shared count(CVE-2024-57883)

    selinux: ignore unknown extended permissions(CVE-2024-57931)

    netfilter: conntrack: clamp maximum hashtable size to INT_MAX(CVE-2025-21648)

    net: sched: Disallow replacing of child qdisc from one parent to another(CVE-2025-21700)

    net: sched: Disallow replacing of child qdisc from one parent to another(CVE-2025-21702)

    ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl(CVE-2021-47634)

    crypto: qat - add param check for DH(CVE-2022-49564)

    nfsd: clear acl_access/acl_default after releasing them(CVE-2025-21796)

    media: uvcvideo: Fix double free in error path(CVE-2024-57980)

    ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo().(CVE-2022-49731)

    dm raid: fix accesses beyond end of raid member array(CVE-2022-49674)

    scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI(CVE-2022-49535)

    md/bitmap: don't set sb values if can't pass sanity check(CVE-2022-49526)

    drm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes(CVE-2022-49532)

    ext4: fix race condition between ext4_write and ext4_convert_inline_data(CVE-2022-49414)

    media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init(CVE-2022-49478)

    dlm: fix plock invalid read(CVE-2022-49407)

    NFSD: prevent underflow in nfssvc_decode_writeargs().(CVE-2022-49280)

    NFSv4: Don't hold the layoutget locks across multiple RPC calls(CVE-2022-49316)

    firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle(CVE-2022-49370)

    ARM: hisi: Add missing of_node_put after of_find_compatible_node(CVE-2022-49447)

    scsi: target: tcmu: Fix possible page UAF(CVE-2022-49053)

    drm/plane: Move range check for format_count earlier(CVE-2021-47659)

    tty: fix deadlock caused by calling printk() under tty_port-lock(CVE-2022-49441)

    bpf, arm64: Clear prog-jited_len along prog-jited(CVE-2022-49341)

    RDMA/hfi1: Fix potential integer multiplication overflow errors(CVE-2022-49404)

    scsi: libfc: Fix use after free in fc_exch_abts_resp().(CVE-2022-49114)

    scsi: qla2xxx: Suppress a kernel complaint in qla_create_qpair().(CVE-2022-49155)

    mm: fix unexpected zeroed page mapping with zram swap(CVE-2022-49052)

    net: tipc: fix possible refcount leak in tipc_sk_create()(CVE-2022-49620)

    RDMA/hfi1: Prevent use of lock before it is initialized(CVE-2022-49433)

    memcg: fix soft lockup in the OOM process(CVE-2024-57977)

    block: don't delete queue kobject before its children(CVE-2022-49259)

    exec: Force single empty string when argv is empty(CVE-2022-49264)

    um: Fix out-of-bounds read in LDT setup(CVE-2022-49395)

    cgroup: Use separate src/dst nodes when preloading css_sets for migration(CVE-2022-49647)

    driver: base: fix UAF when driver_attach failed(CVE-2022-49385)

    nbd: don't allow reconnect after disconnect(CVE-2025-21731)

    vrf: use RCU protection in l3mdev_l3_out().(CVE-2025-21791)

    net_sched: sch_sfq: don't allow 1 packet limit(CVE-2024-57996)

    net: let net.core.dev_weight always be non-zero(CVE-2025-21806)

    tty: synclink_gt: Fix null-pointer-dereference in slgt_clean().(CVE-2022-49307)

    virtio_net: fix xdp_rxq_info bug after suspend/resume(CVE-2022-49687)

    be2net: Fix buffer overflow in be_get_module_eeprom(CVE-2022-49581)

    ubi: ubi_create_volume: Fix use-after-free when volume creation failed(CVE-2022-49388)

    ipmr: do not call mr_mfc_uses_dev() for unres entries(CVE-2025-21719)

    ALSA: jack: Access input_dev under mutex(CVE-2022-49538)

    geneve: Fix use-after-free in geneve_find_dev().(CVE-2025-21858)

    rxrpc: Fix listen() setting the bar too high for the prealloc rings(CVE-2022-49450)

Tenable has extracted the preceding description block directly from the EulerOS kernel security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 14.04 LTS / 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7930-1 advisory.

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to     compromise the system. This update corrects flaws in the following subsystems:

    - Cryptographic API;

    - ACPI drivers;

    - Hardware monitoring drivers;

    - InfiniBand drivers;

    - MTD block device drivers;

    - Network drivers;

    - DesignWare USB3 driver;

    - Ceph distributed file system;

    - Network file system (NFS) server daemon;

    - NILFS2 file system;

    - File systems infrastructure;

    - Tracing infrastructure;

    - Appletalk network protocol;

    - IPv6 networking;

    - Netfilter; (CVE-2021-47146, CVE-2021-47269, CVE-2021-47385, CVE-2021-47634, CVE-2022-49026,     CVE-2024-49935, CVE-2024-50067, CVE-2024-50095, CVE-2024-50179, CVE-2024-53112, CVE-2024-53217,     CVE-2025-21715, CVE-2025-21722, CVE-2025-21811, CVE-2025-21855, CVE-2025-38666, CVE-2025-39964,     CVE-2025-40018)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0834-1 advisory.

    The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security bugfixes.

    The following security bugs were fixed:

    - CVE-2021-22543: Fixed improper handling of VM_IO|VM_PFNMAP vmas in KVM (bsc#1186482).
    - CVE-2021-47634: ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl (bsc#1237758).
    - CVE-2021-47644: media: staging: media: zoran: move videodev alloc (bsc#1237766).
    - CVE-2022-48953: rtc: cmos: fix build on non-ACPI platforms (bsc#1231941).
    - CVE-2022-48975: gpiolib: fix memory leak in gpiochip_setup_dev() (bsc#1231885).
    - CVE-2022-49006: tracing: Free buffers when a used dynamic event is removed (bsc#1232163).
    - CVE-2022-49076: RDMA/hfi1: Fix use-after-free bug for mm struct (bsc#1237738).
    - CVE-2022-49080: mm/mempolicy: fix mpol_new leak in shared_policy_replace (bsc#1238033).
    - CVE-2022-49089: IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition (bsc#1238041).
    - CVE-2022-49124: x86/mce: Work around an erratum on fast string copy instructions (bsc#1238148).
    - CVE-2022-49134: mlxsw: spectrum: Guard against invalid local ports (bsc#1237982).
    - CVE-2022-49135: drm/amd/display: Fix memory leak (bsc#1238006).
    - CVE-2022-49151: can: mcba_usb: properly check endpoint type (bsc#1237778).
    - CVE-2022-49178: memstick/mspro_block: fix handling of read-only devices (bsc#1238107).
    - CVE-2022-49182: net: hns3: add vlan list lock to protect vlan list (bsc#1238260).
    - CVE-2022-49201: ibmvnic: fix race between xmit and reset (bsc#1238256).
    - CVE-2022-49247: media: stk1160: If start stream fails, return buffers with VB2_BUF_STATE_QUEUED     (bsc#1237783).
    - CVE-2022-49490: drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is (bsc#1238275).
    - CVE-2022-49626: sfc: fix use after free when disabling sriov (bsc#1238270).
    - CVE-2022-49661: can: gs_usb: gs_usb_open/close(): fix memory leak (bsc#1237788).
    - CVE-2023-52572: Fixed UAF in cifs_demultiplex_thread() in cifs (bsc#1220946).
    - CVE-2023-52853: hid: cp2112: Fix duplicate workqueue initialization (bsc#1224988).
    - CVE-2023-52924: netfilter: nf_tables: do not skip expired elements during walk (bsc#1236821).
    - CVE-2023-6606: Fixed an out of bounds read in the SMB client when receiving a malformed length from a     server (bsc#1217947).
    - CVE-2024-23307: Fixed Integer Overflow or Wraparound vulnerability in x86 and ARM md, raid, raid5     modules (bsc#1219169).
    - CVE-2024-27397: netfilter: nf_tables: use timestamp to check for set element timeout (bsc#1224095).
    - CVE-2024-49963: mailbox: bcm2835: Fix timeout during suspend mode (bsc#1232147).
    - CVE-2024-49975: uprobes: fix kernel info leak via '[uprobes]' vma (bsc#1232104).
    - CVE-2024-50036: net: do not delay dst_entries_add() in dst_release() (bsc#1231912).
    - CVE-2024-50067: uprobe: avoid out-of-bounds memory access of fetching args (bsc#1232416).
    - CVE-2024-50251: netfilter: nft_payload: sanitize offset and length before calling skb_checksum()     (bsc#1233248).
    - CVE-2024-50304: ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_find() (bsc#1233522).
    - CVE-2024-53217: nfsd: restore callback functionality for NFSv4.0 (bsc#1234999).
    - CVE-2024-56633: bpf, sockmap: Fix repeated calls to sock_put() when msg has more_data (bsc#1235485).
    - CVE-2024-56647: net: Fix icmp host relookup triggering ip_rt_bug (bsc#1235435).
    - CVE-2024-56658: net: defer final 'struct net' free in netns dismantle (bsc#1235441).
    - CVE-2024-56688: sunrpc: clear XPRT_SOCK_UPD_TIMEOUT when reset transport (bsc#1235538).
    - CVE-2025-21638: sctp: sysctl: auth_enable: avoid using current->nsproxy (bsc#1236115).
    - CVE-2025-21639: sctp: sysctl: rto_min/max: avoid using current->nsproxy (bsc#1236122).
    - CVE-2025-21640: sctp: sysctl: cookie_hmac_alg: avoid using current->nsproxy (bsc#1236123).
    - CVE-2025-21673: smb: client: fix double free of TCP_Server_Info::hostname (bsc#1236689).
    - CVE-2025-21689: USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb() (bsc#1237017).
    - CVE-2025-21690: scsi: storvsc: Ratelimit warning logs to prevent VM denial of service (bsc#1237025).
    - CVE-2025-21700: net: sched: Disallow replacing of child qdisc from one parent to another (bsc#1237159).
    - CVE-2025-21753: btrfs: fix use-after-free when attempting to join an aborted transaction (bsc#1237875).


Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In the Linux kernel, the following vulnerability has been resolved: ubi: Fix race condition between     ctrl_cdev_ioctl and ubi_cdev_ioctl Hulk Robot reported a KASAN report about use-after-free:
    ================================================================== BUG: KASAN: use-after-free in
    __list_del_entry_valid+0x13d/0x160 Read of size 8 at addr ffff888035e37d98 by task ubiattach/1385 [...]     Call Trace: klist_dec_and_del+0xa7/0x4a0 klist_put+0xc7/0x1a0 device_del+0x4d4/0xed0     cdev_device_del+0x1a/0x80 ubi_attach_mtd_dev+0x2951/0x34b0 [ubi] ctrl_cdev_ioctl+0x286/0x2f0 [ubi]     Allocated by task 1414: device_add+0x60a/0x18b0 cdev_device_add+0x103/0x170     ubi_create_volume+0x1118/0x1a10 [ubi] ubi_cdev_ioctl+0xb7f/0x1ba0 [ubi] Freed by task 1385:
    cdev_device_del+0x1a/0x80 ubi_remove_volume+0x438/0x6c0 [ubi] ubi_cdev_ioctl+0xbf4/0x1ba0 [ubi] [...]     ================================================================== The lock held by ctrl_cdev_ioctl is     ubi_devices_mutex, but the lock held by ubi_cdev_ioctl is ubi->device_mutex. Therefore, the two locks can     be concurrent. ctrl_cdev_ioctl contains two operations: ubi_attach and ubi_detach. ubi_detach is bug-free     because it uses reference counting to prevent concurrency. However, uif_init and uif_close in ubi_attach     may race with ubi_cdev_ioctl. uif_init will race with ubi_cdev_ioctl as in the following stack. cpu1 cpu2     cpu3 _______________________|________________________|______________________ ctrl_cdev_ioctl     ubi_attach_mtd_dev uif_init ubi_cdev_ioctl ubi_create_volume cdev_device_add ubi_add_volume // sysfs exist     kill_volumes ubi_cdev_ioctl ubi_remove_volume cdev_device_del // first free ubi_free_volume cdev_del //     double free cdev_device_del And uif_close will race with ubi_cdev_ioctl as in the following stack. cpu1     cpu2 cpu3 _______________________|________________________|______________________ ctrl_cdev_ioctl     ubi_attach_mtd_dev uif_init ubi_cdev_ioctl ubi_create_volume cdev_device_add ubi_debugfs_init_dev //error     goto out_uif; uif_close kill_volumes ubi_cdev_ioctl ubi_remove_volume cdev_device_del // first free     ubi_free_volume // double free The cause of this problem is that commit 714fb87e8bc0 make device     available before it becomes accessible via sysfs. Therefore, we roll back the modification. We will fix     the race condition between ubi device creation and udev by removing ubi_get_device in vol_attribute_show     and dev_attribute_show.This avoids accessing uninitialized ubi_devices[ubi_num]. ubi_get_device is used to     prevent devices from being deleted during sysfs execution. However, now kernfs ensures that devices will     not be deleted before all reference counting are released. The key process is shown in the following     stack. device_del device_remove_attrs device_remove_groups sysfs_remove_groups sysfs_remove_group     remove_files kernfs_remove_by_name kernfs_remove_by_name_ns __kernfs_remove kernfs_drain (CVE-2021-47634)

Note that Nessus relies on the presence of the package as reported by the vendor.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987299 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl

    Hulk Robot reported a KASAN report about use-after-free:
     ==================================================================      BUG: KASAN: use-after-free in __list_del_entry_valid+0x13d/0x160      Read of size 8 at addr ffff888035e37d98 by task ubiattach/1385      [...]      Call Trace:
      klist_dec_and_del+0xa7/0x4a0       klist_put+0xc7/0x1a0       device_del+0x4d4/0xed0       cdev_device_del+0x1a/0x80       ubi_attach_mtd_dev+0x2951/0x34b0 [ubi]       ctrl_cdev_ioctl+0x286/0x2f0 [ubi]

     Allocated by task 1414:
      device_add+0x60a/0x18b0       cdev_device_add+0x103/0x170       ubi_create_volume+0x1118/0x1a10 [ubi]       ubi_cdev_ioctl+0xb7f/0x1ba0 [ubi]

     Freed by task 1385:
      cdev_device_del+0x1a/0x80       ubi_remove_volume+0x438/0x6c0 [ubi]       ubi_cdev_ioctl+0xbf4/0x1ba0 [ubi]      [...]      ==================================================================

    The lock held by ctrl_cdev_ioctl is ubi_devices_mutex, but the lock held     by ubi_cdev_ioctl is ubi->device_mutex. Therefore, the two locks can be     concurrent.

    ctrl_cdev_ioctl contains two operations: ubi_attach and ubi_detach.
    ubi_detach is bug-free because it uses reference counting to prevent     concurrency. However, uif_init and uif_close in ubi_attach may race with     ubi_cdev_ioctl.

    uif_init will race with ubi_cdev_ioctl as in the following stack.
               cpu1                   cpu2                  cpu3
    _______________________|________________________|______________________     ctrl_cdev_ioctl      ubi_attach_mtd_dev       uif_init                                ubi_cdev_ioctl                                 ubi_create_volume                                  cdev_device_add        ubi_add_volume        // sysfs exist        kill_volumes                                                         ubi_cdev_ioctl                                                          ubi_remove_volume                                                           cdev_device_del                                                            // first free         ubi_free_volume          cdev_del          // double free        cdev_device_del

    And uif_close will race with ubi_cdev_ioctl as in the following stack.
               cpu1                   cpu2                  cpu3
    _______________________|________________________|______________________     ctrl_cdev_ioctl      ubi_attach_mtd_dev       uif_init                                ubi_cdev_ioctl                                 ubi_create_volume                                  cdev_device_add       ubi_debugfs_init_dev       //error goto out_uif;
      uif_close        kill_volumes                                                         ubi_cdev_ioctl                                                          ubi_remove_volume                                                           cdev_device_del                                                            // first free         ubi_free_volume         // double free

    The cause of this problem is that commit 714fb87e8bc0 make device     available before it becomes accessible via sysfs. Therefore, we     roll back the modification. We will fix the race condition between     ubi device creation and udev by removing ubi_get_device in     vol_attribute_show and dev_attribute_show.This avoids accessing     uninitialized ubi_devices[ubi_num].

    ubi_get_device is used to prevent devices from being deleted during     sysfs execution. However, now kernfs ensures that devices will not     be deleted before all reference counting are released.
    The key process is shown in the following stack.

    device_del       device_remove_attrs         device_remove_groups           sysfs_remove_groups             sysfs_remove_group               remove_files                 kernfs_remove_by_name                   kernfs_remove_by_name_ns
                    __kernfs_remove                       kernfs_drain

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989751 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl

    Hulk Robot reported a KASAN report about use-after-free:
     ==================================================================      BUG: KASAN: use-after-free in __list_del_entry_valid+0x13d/0x160      Read of size 8 at addr ffff888035e37d98 by task ubiattach/1385      [...]      Call Trace:
      klist_dec_and_del+0xa7/0x4a0       klist_put+0xc7/0x1a0       device_del+0x4d4/0xed0       cdev_device_del+0x1a/0x80       ubi_attach_mtd_dev+0x2951/0x34b0 [ubi]       ctrl_cdev_ioctl+0x286/0x2f0 [ubi]

     Allocated by task 1414:
      device_add+0x60a/0x18b0       cdev_device_add+0x103/0x170       ubi_create_volume+0x1118/0x1a10 [ubi]       ubi_cdev_ioctl+0xb7f/0x1ba0 [ubi]

     Freed by task 1385:
      cdev_device_del+0x1a/0x80       ubi_remove_volume+0x438/0x6c0 [ubi]       ubi_cdev_ioctl+0xbf4/0x1ba0 [ubi]      [...]      ==================================================================

    The lock held by ctrl_cdev_ioctl is ubi_devices_mutex, but the lock held     by ubi_cdev_ioctl is ubi->device_mutex. Therefore, the two locks can be     concurrent.

    ctrl_cdev_ioctl contains two operations: ubi_attach and ubi_detach.
    ubi_detach is bug-free because it uses reference counting to prevent     concurrency. However, uif_init and uif_close in ubi_attach may race with     ubi_cdev_ioctl.

    uif_init will race with ubi_cdev_ioctl as in the following stack.
               cpu1                   cpu2                  cpu3
    _______________________|________________________|______________________     ctrl_cdev_ioctl      ubi_attach_mtd_dev       uif_init                                ubi_cdev_ioctl                                 ubi_create_volume                                  cdev_device_add        ubi_add_volume        // sysfs exist        kill_volumes                                                         ubi_cdev_ioctl                                                          ubi_remove_volume                                                           cdev_device_del                                                            // first free         ubi_free_volume          cdev_del          // double free        cdev_device_del

    And uif_close will race with ubi_cdev_ioctl as in the following stack.
               cpu1                   cpu2                  cpu3
    _______________________|________________________|______________________     ctrl_cdev_ioctl      ubi_attach_mtd_dev       uif_init                                ubi_cdev_ioctl                                 ubi_create_volume                                  cdev_device_add       ubi_debugfs_init_dev       //error goto out_uif;
      uif_close        kill_volumes                                                         ubi_cdev_ioctl                                                          ubi_remove_volume                                                           cdev_device_del                                                            // first free         ubi_free_volume         // double free

    The cause of this problem is that commit 714fb87e8bc0 make device     available before it becomes accessible via sysfs. Therefore, we     roll back the modification. We will fix the race condition between     ubi device creation and udev by removing ubi_get_device in     vol_attribute_show and dev_attribute_show.This avoids accessing     uninitialized ubi_devices[ubi_num].

    ubi_get_device is used to prevent devices from being deleted during     sysfs execution. However, now kernfs ensures that devices will not     be deleted before all reference counting are released.
    The key process is shown in the following stack.

    device_del       device_remove_attrs         device_remove_groups           sysfs_remove_groups             sysfs_remove_group               remove_files                 kernfs_remove_by_name                   kernfs_remove_by_name_ns
                    __kernfs_remove                       kernfs_drain

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    drm/plane: Move range check for format_count earlier(CVE-2021-47659)

    trace_events_hist: add check for return value of 'create_hist_field'(CVE-2023-53005)

    tracing: Make sure trace_printk() can output as soon as it can be used(CVE-2023-53007)

    bpf: Fix pointer-leak due to insufficient speculative store bypass mitigation(CVE-2023-53024)

    sunrpc: fix one UAF issue caused by sunrpc kernel tcp socket(CVE-2024-53168)

    tracing/histograms: Fix memory leak problem(CVE-2022-49648)

    vrf: use RCU protection in l3mdev_l3_out().(CVE-2025-21791)

    net_sched: sch_sfq: don't allow 1 packet limit(CVE-2024-57996)

    net: sched: Disallow replacing of child qdisc from one parent to another(CVE-2025-21700)

    geneve: Fix use-after-free in geneve_find_dev().(CVE-2025-21858)

    macsec: fix UAF bug for real_dev(CVE-2022-49390)

    net: let net.core.dev_weight always be non-zero(CVE-2025-21806)

    net: mdio: unexport __init-annotated mdio_bus_init().(CVE-2022-49350)

    ip: Fix data-races around sysctl_ip_fwd_update_priority.(CVE-2022-49603)

    mmc: sdio: fix possible resource leaks in some error paths(CVE-2023-52730)

    ipv4: prevent potential spectre v1 gadget in ip_metrics_convert().(CVE-2023-52997)

    net: sched: Disallow replacing of child qdisc from one parent to another(CVE-2025-21702)

    net/sched: act_skbmod: prevent kernel-infoleak(CVE-2024-35893)

    netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function.(CVE-2023-53032)

    net: openvswitch: fix leak of nested actions(CVE-2022-49086)

    net: mdio: validate parameter addr in mdiobus_get_phy().(CVE-2023-53019)

    selinux: ignore unknown extended permissions(CVE-2024-57931)

    vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF(CVE-2023-52973)

    driver: base: fix UAF when driver_attach failed(CVE-2022-49385)

    scsi: bnx2fc: Flush destroy_work queue before calling bnx2fc_interface_put().(CVE-2022-48758)

    rxrpc: Fix listen() setting the bar too high for the prealloc rings(CVE-2022-49450)

    ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl(CVE-2021-47634)

    media: uvcvideo: Fix double free in error path(CVE-2024-57980)

    scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI(CVE-2022-49535)

    dmaengine: Fix double increment of client_count in dma_chan_get().(CVE-2022-49753)

    memcg: fix soft lockup in the OOM process(CVE-2024-57977)

    firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle(CVE-2022-49370)

    dm raid: fix accesses beyond end of raid member array(CVE-2022-49674)

    nfsd: clear acl_access/acl_default after releasing them(CVE-2025-21796)

    Input: MT - limit max slots(CVE-2024-45008)(CVE-2024-45008)

    ubi: ubi_create_volume: Fix use-after-free when volume creation failed(CVE-2022-49388)

    scsi: qla2xxx: Suppress a kernel complaint in qla_create_qpair().(CVE-2022-49155)

    NFSD: prevent underflow in nfssvc_decode_writeargs().(CVE-2022-49280)

    dm integrity: fix memory corruption when tag_size is less than digest size(CVE-2022-49044)

    cpufreq: governor: Use kobject release() method to free dbs_data(CVE-2022-49513)

    virtio_console: eliminate anonymous module_init  module_exit(CVE-2022-49100)

    mm/khugepaged: fix -anon_vma race(CVE-2023-52935)

    tty: fix deadlock caused by calling printk() under tty_port-lock(CVE-2022-49441)

    tty: synclink_gt: Fix null-pointer-dereference in slgt_clean().(CVE-2022-49307)

    dyndbg: fix old BUG_ON in control parser(CVE-2024-35947)(CVE-2024-35947)

    ext4: fix OOB read when checking dotdot dir(CVE-2025-37785)

    arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array(CVE-2025-21785)

    net_sched: sch_sfq: move the limit validation(CVE-2025-37752)

Tenable has extracted the preceding description block directly from the EulerOS kernel security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of kernel installed on the remote host is prior to 5.4.190-107.353. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2024-076 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl (CVE-2021-47634)

    In the Linux kernel, the following vulnerability has been resolved:

    Revert Revert block, bfq: honor already-setup queue merges (CVE-2021-47646)

    In the Linux kernel, the following vulnerability has been resolved:

    ASoC: soc-compress: prevent the potentially use of null pointer (CVE-2021-47650)

    When the KVM updates the guest's page table entry, it will first use get_user_pages_fast() to pin the     page, and when it fails (e.g. the vma->flags has VM_IO or VM_PFNMAP), it will get corresponding VMA where     the page lies in through find_vma_intersection(), calculate the physical address, and map the page to the     kernel virtual address through memremap(), and finally, write the update.The problem is that when we get     the vma through find_vma_intersection(), only VM_PFNMAP is checked, not both VM_IO and VM_PFNMAP. In the     reproducer below, after the KVM_SET_USER_MEMORY_REGION is completed, we replace the guest's memory mapping     with the kernel-user shared region of io_uring and then perform the KVM_TRANSLATE operation, which finally     triggers the page table entry update. Now, memremap() will return page_offset_base (direct mapping of all     physical memory) + vaddr (the linear address of KVM_TRANSLATE) + vm_pgoff (the offset when io_uring     performs mmap(2)), and use the return value as the base address for CMPXCHG (write 0x21 in this case).
    Since both vaddr and vm_pgoff are controllable by the user-mode process, writing may exceed the previously     mapped guest memory space and trigger exceptions such as UAF. The vulnerability shares similarities with     CVE-2021-22543. (CVE-2022-1158)

    A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel. This     flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a     leak of internal kernel information. (CVE-2022-1353)

    A flaw was found in the Linux kernel implementation of proxied virtualized TPM devices. On a system where     virtualized TPM devices are configured (this is not the default) a local attacker can create a use-after-     free and create a situation where it may be possible to escalate privileges on the system. (CVE-2022-2977)

    A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in     progress to detach in sl_tx_timeout in drivers/net/slip/slip.c. This issue could allow an attacker to     crash the system or leak internal kernel information. (CVE-2022-41858)

    In the Linux kernel, the following vulnerability has been resolved:

    swiotlb: fix info leak with DMA_FROM_DEVICE (CVE-2022-48853)

    In the Linux kernel, the following vulnerability has been resolved:

    dm integrity: fix memory corruption when tag_size is less than digest size (CVE-2022-49044)

    In the Linux kernel, the following vulnerability has been resolved:

    ipv6: fix panic when forwarding a pkt with no in6 dev (CVE-2022-49048)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: target: tcmu: Fix possible page UAF (CVE-2022-49053)

    In the Linux kernel, the following vulnerability has been resolved:

    cifs: potential buffer overflow in handling symlinks (CVE-2022-49058)

    In the Linux kernel, the following vulnerability has been resolved:

    veth: Ensure eth header is in skb's linear part (CVE-2022-49066)

    In the Linux kernel, the following vulnerability has been resolved:

    ata: sata_dwc_460ex: Fix crash due to OOB write (CVE-2022-49073)

    In the Linux kernel, the following vulnerability has been resolved:

    irqchip/gic-v3: Fix GICR_CTLR.RWP polling (CVE-2022-49074)

    In the Linux kernel, the following vulnerability has been resolved:

    btrfs: fix qgroup reserve overflow the qgroup limit (CVE-2022-49075)

    In the Linux kernel, the following vulnerability has been resolved:

    mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0) (CVE-2022-49077)

    In the Linux kernel, the following vulnerability has been resolved:

    lz4: fix LZ4_decompress_safe_partial read out of bound (CVE-2022-49078)

    In the Linux kernel, the following vulnerability has been resolved:

    mm/mempolicy: fix mpol_new leak in shared_policy_replace (CVE-2022-49080)

    In the Linux kernel, the following vulnerability has been resolved:

    qede: confirm skb is allocated before using (CVE-2022-49084)

    In the Linux kernel, the following vulnerability has been resolved:

    drbd: Fix five use after free bugs in get_initial_state (CVE-2022-49085)

    In the Linux kernel, the following vulnerability has been resolved:

    rxrpc: fix a race in rxrpc_exit_net() (CVE-2022-49087)

    In the Linux kernel, the following vulnerability has been resolved:

    net: ipv4: fix route with nexthop object delete warning (CVE-2022-49092)

    In the Linux kernel, the following vulnerability has been resolved:

    net/tls: fix slab-out-of-bounds bug in decrypt_internal (CVE-2022-49094)

    In the Linux kernel, the following vulnerability has been resolved:

    Drivers: hv: vmbus: Fix potential crash on module unload (CVE-2022-49098)

    In the Linux kernel, the following vulnerability has been resolved:

    virtio_console: eliminate anonymous module_init & module_exit (CVE-2022-49100)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: libfc: Fix use after free in fc_exch_abts_resp() (CVE-2022-49114)

    In the Linux kernel, the following vulnerability has been resolved:

    dm ioctl: prevent potential spectre v1 gadget (CVE-2022-49122)

    In the Linux kernel, the following vulnerability has been resolved:

    ACPI: CPPC: Avoid out of bounds access when parsing _CPC data (CVE-2022-49145)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: qla2xxx: Suppress a kernel complaint in qla_create_qpair() (CVE-2022-49155)

    In the Linux kernel, the following vulnerability has been resolved:

    ntfs: add sanity check on allocation size (CVE-2022-49166)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: don't BUG if someone dirty pages without asking ext4 first (CVE-2022-49171)

    In the Linux kernel, the following vulnerability has been resolved:

    PM: core: keep irq flags in device_pm_check_callbacks() (CVE-2022-49175)

    In the Linux kernel, the following vulnerability has been resolved:

    bfq: fix use-after-free in bfq_dispatch_request (CVE-2022-49176)

    In the Linux kernel, the following vulnerability has been resolved:

    block, bfq: don't move oom_bfqq (CVE-2022-49179)

    In the Linux kernel, the following vulnerability has been resolved:

    LSM: general protection fault in legacy_parse_param (CVE-2022-49180)

    In the Linux kernel, the following vulnerability has been resolved:

    af_netlink: Fix shift out of bounds in group mask calculation (CVE-2022-49197)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf, sockmap: Fix more uncharged while msg has more_data (CVE-2022-49204)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf, sockmap: Fix double uncharge the mem of sk_msg (CVE-2022-49205)

    In the Linux kernel, the following vulnerability has been resolved:

    RDMA/mlx5: Fix memory leak in error flow for subscribe event routine (CVE-2022-49206)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full (CVE-2022-49209)

    In the Linux kernel, the following vulnerability has been resolved:

    dax: make sure inodes are flushed before destroy cache (CVE-2022-49220)

    In the Linux kernel, the following vulnerability has been resolved:

    power: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init (CVE-2022-49224)

    In the Linux kernel, the following vulnerability has been resolved:

    block: don't delete queue kobject before its children (CVE-2022-49259)

    In the Linux kernel, the following vulnerability has been resolved:

    NFSD: prevent integer overflow on 32 bit systems (CVE-2022-49279)

    In the Linux kernel, the following vulnerability has been resolved:

    NFSD: prevent underflow in nfssvc_decode_writeargs() (CVE-2022-49280)

    In the Linux kernel, the following vulnerability has been resolved:

    tpm: fix reference counting for struct tpm_chip (CVE-2022-49287)

    A flaw that boot CPU could be vulnerable for the speculative execution behavior kind of attacks in the     Linux kernel X86 CPU Power management options functionality was found in the way user resuming CPU from     suspend-to-RAM. A local user could use this flaw to potentially get unauthorized access to some memory of     the CPU similar to the speculative execution behavior kind of attacks. (CVE-2023-1637)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of kernel installed on the remote host is prior to 5.10.112-108.499. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2023-036 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl (CVE-2021-47634)

    In the Linux kernel, the following vulnerability has been resolved:

    Revert Revert block, bfq: honor already-setup queue merges (CVE-2021-47646)

    In the Linux kernel, the following vulnerability has been resolved:

    ASoC: soc-compress: prevent the potentially use of null pointer (CVE-2021-47650)

    A denial of service (DOS) issue was found in the Linux kernel's smb2_ioctl_query_info function in     the fs/cifs/smb2ops.c Common Internet File System (CIFS) due to an incorrect return from the memdup_user     function. This flaw allows a local, privileged (CAP_SYS_ADMIN) attacker to crash the system.
    (CVE-2022-0168)

    When the KVM updates the guest's page table entry, it will first use get_user_pages_fast() to pin the     page, and when it fails (e.g. the vma->flags has VM_IO or VM_PFNMAP), it will get corresponding VMA where     the page lies in through find_vma_intersection(), calculate the physical address, and map the page to the     kernel virtual address through memremap(), and finally, write the update.The problem is that when we get     the vma through find_vma_intersection(), only VM_PFNMAP is checked, not both VM_IO and VM_PFNMAP. In the     reproducer below, after the KVM_SET_USER_MEMORY_REGION is completed, we replace the guest's memory mapping     with the kernel-user shared region of io_uring and then perform the KVM_TRANSLATE operation, which finally     triggers the page table entry update. Now, memremap() will return page_offset_base (direct mapping of all     physical memory) + vaddr (the linear address of KVM_TRANSLATE) + vm_pgoff (the offset when io_uring     performs mmap(2)), and use the return value as the base address for CMPXCHG (write 0x21 in this case).
    Since both vaddr and vm_pgoff are controllable by the user-mode process, writing may exceed the previously     mapped guest memory space and trigger exceptions such as UAF. The vulnerability shares similarities with     CVE-2021-22543. (CVE-2022-1158)

    A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel. This     flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a     leak of internal kernel information. (CVE-2022-1353)

    A use-after-free flaw was found in the Linux kernel's io_uring interface subsystem in the way a user     triggers a race condition between timeout flush and removal. This flaw allows a local user to crash or     escalate their privileges on the system. (CVE-2022-29582)

    A flaw was found in the Linux kernel implementation of proxied virtualized TPM devices. On a system where     virtualized TPM devices are configured (this is not the default) a local attacker can create a use-after-     free and create a situation where it may be possible to escalate privileges on the system. (CVE-2022-2977)

    A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in     progress to detach in sl_tx_timeout in drivers/net/slip/slip.c. This issue could allow an attacker to     crash the system or leak internal kernel information. (CVE-2022-41858)

    In the Linux kernel, the following vulnerability has been resolved:

    swiotlb: fix info leak with DMA_FROM_DEVICE (CVE-2022-48853)

    In the Linux kernel, the following vulnerability has been resolved:

    dm integrity: fix memory corruption when tag_size is less than digest size (CVE-2022-49044)

    In the Linux kernel, the following vulnerability has been resolved:

    ipv6: fix panic when forwarding a pkt with no in6 dev (CVE-2022-49048)

    In the Linux kernel, the following vulnerability has been resolved:

    mm: fix unexpected zeroed page mapping with zram swap (CVE-2022-49052)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: target: tcmu: Fix possible page UAF (CVE-2022-49053)

    In the Linux kernel, the following vulnerability has been resolved:

    cifs: potential buffer overflow in handling symlinks (CVE-2022-49058)

    In the Linux kernel, the following vulnerability has been resolved:

    SUNRPC: Fix the svc_deferred_event trace class (CVE-2022-49065)

    In the Linux kernel, the following vulnerability has been resolved:

    veth: Ensure eth header is in skb's linear part (CVE-2022-49066)

    In the Linux kernel, the following vulnerability has been resolved:

    gpio: Restrict usage of GPIO chip irq members before initialization (CVE-2022-49072)

    In the Linux kernel, the following vulnerability has been resolved:

    ata: sata_dwc_460ex: Fix crash due to OOB write (CVE-2022-49073)

    In the Linux kernel, the following vulnerability has been resolved:

    irqchip/gic-v3: Fix GICR_CTLR.RWP polling (CVE-2022-49074)

    In the Linux kernel, the following vulnerability has been resolved:

    btrfs: fix qgroup reserve overflow the qgroup limit (CVE-2022-49075)

    In the Linux kernel, the following vulnerability has been resolved:

    mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0) (CVE-2022-49077)

    In the Linux kernel, the following vulnerability has been resolved:

    lz4: fix LZ4_decompress_safe_partial read out of bound (CVE-2022-49078)

    In the Linux kernel, the following vulnerability has been resolved:

    mm/mempolicy: fix mpol_new leak in shared_policy_replace (CVE-2022-49080)

    In the Linux kernel, the following vulnerability has been resolved:

    qede: confirm skb is allocated before using (CVE-2022-49084)

    In the Linux kernel, the following vulnerability has been resolved:

    drbd: Fix five use after free bugs in get_initial_state (CVE-2022-49085)

    In the Linux kernel, the following vulnerability has been resolved:

    net: openvswitch: fix leak of nested actions (CVE-2022-49086)

    In the Linux kernel, the following vulnerability has been resolved:

    rxrpc: fix a race in rxrpc_exit_net() (CVE-2022-49087)

    In the Linux kernel, the following vulnerability has been resolved:

    net: ipv4: fix route with nexthop object delete warning (CVE-2022-49092)

    In the Linux kernel, the following vulnerability has been resolved:

    net/tls: fix slab-out-of-bounds bug in decrypt_internal (CVE-2022-49094)

    In the Linux kernel, the following vulnerability has been resolved:

    NFS: Avoid writeback threads getting stuck in mempool_alloc() (CVE-2022-49097)

    In the Linux kernel, the following vulnerability has been resolved:

    Drivers: hv: vmbus: Fix potential crash on module unload (CVE-2022-49098)

    In the Linux kernel, the following vulnerability has been resolved:

    virtio_console: eliminate anonymous module_init & module_exit (CVE-2022-49100)

    In the Linux kernel, the following vulnerability has been resolved:

    NFSv4.2: fix reference count leaks in _nfs42_proc_copy_notify() (CVE-2022-49103)

    In the Linux kernel, the following vulnerability has been resolved:

    ceph: fix memory leak in ceph_readdir when note_last_dentry returns error (CVE-2022-49107)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: libfc: Fix use after free in fc_exch_abts_resp() (CVE-2022-49114)

    In the Linux kernel, the following vulnerability has been resolved:

    dm ioctl: prevent potential spectre v1 gadget (CVE-2022-49122)

    In the Linux kernel, the following vulnerability has been resolved:

    io_uring: fix memory leak of uid in files registration (CVE-2022-49144)

    In the Linux kernel, the following vulnerability has been resolved:

    ACPI: CPPC: Avoid out of bounds access when parsing _CPC data (CVE-2022-49145)

    In the Linux kernel, the following vulnerability has been resolved:

    watch_queue: Free the page array when watch_queue is dismantled (CVE-2022-49148)

    In the Linux kernel, the following vulnerability has been resolved:

    rxrpc: Fix call timer start racing with call destruction (CVE-2022-49149)

    In the Linux kernel, the following vulnerability has been resolved:

    wireguard: socket: free skb in send6 when ipv6 is disabled (CVE-2022-49153)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: SVM: fix panic on out-of-bounds guest IRQ (CVE-2022-49154)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: qla2xxx: Suppress a kernel complaint in qla_create_qpair() (CVE-2022-49155)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: qla2xxx: Fix scheduling while atomic (CVE-2022-49156)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: don't BUG if someone dirty pages without asking ext4 first (CVE-2022-49171)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix ext4_mb_mark_bb() with flex_bg with fast_commit (CVE-2022-49174)

    In the Linux kernel, the following vulnerability has been resolved:

    PM: core: keep irq flags in device_pm_check_callbacks() (CVE-2022-49175)

    In the Linux kernel, the following vulnerability has been resolved:

    bfq: fix use-after-free in bfq_dispatch_request (CVE-2022-49176)

    In the Linux kernel, the following vulnerability has been resolved:

    block, bfq: don't move oom_bfqq (CVE-2022-49179)

    In the Linux kernel, the following vulnerability has been resolved:

    LSM: general protection fault in legacy_parse_param (CVE-2022-49180)

    In the Linux kernel, the following vulnerability has been resolved:

    af_netlink: Fix shift out of bounds in group mask calculation (CVE-2022-49197)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf, sockmap: Fix more uncharged while msg has more_data (CVE-2022-49204)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf, sockmap: Fix double uncharge the mem of sk_msg (CVE-2022-49205)

    In the Linux kernel, the following vulnerability has been resolved:

    RDMA/mlx5: Fix memory leak in error flow for subscribe event routine (CVE-2022-49206)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full (CVE-2022-49209)

    In the Linux kernel, the following vulnerability has been resolved:

    MIPS: pgalloc: fix memory leak caused by pgd_free() (CVE-2022-49210)

    In the Linux kernel, the following vulnerability has been resolved:

    dax: make sure inodes are flushed before destroy cache (CVE-2022-49220)

    In the Linux kernel, the following vulnerability has been resolved:

    power: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init (CVE-2022-49224)

    In the Linux kernel, the following vulnerability has been resolved:

    watch_queue: Actually free the watch (CVE-2022-49256)

    In the Linux kernel, the following vulnerability has been resolved:

    watch_queue: Fix NULL dereference in error cleanup (CVE-2022-49257)

    In the Linux kernel, the following vulnerability has been resolved:

    block: don't delete queue kobject before its children (CVE-2022-49259)

    In the Linux kernel, the following vulnerability has been resolved:

    drm/i915/gem: add missing boundary check in vm_access (CVE-2022-49261)

    In the Linux kernel, the following vulnerability has been resolved:

    exec: Force single empty string when argv is empty (CVE-2022-49264)

    In the Linux kernel, the following vulnerability has been resolved:

    cifs: prevent bad output lengths in smb2_ioctl_query_info() (CVE-2022-49271)

    In the Linux kernel, the following vulnerability has been resolved:

    ALSA: pcm: Fix potential AB/BA lock with buffer_mutex and mmap_lock (CVE-2022-49272)

    In the Linux kernel, the following vulnerability has been resolved:

    NFSD: prevent integer overflow on 32 bit systems (CVE-2022-49279)

    In the Linux kernel, the following vulnerability has been resolved:

    NFSD: prevent underflow in nfssvc_decode_writeargs() (CVE-2022-49280)

    In the Linux kernel, the following vulnerability has been resolved:

    tpm: fix reference counting for struct tpm_chip (CVE-2022-49287)

    A use-after-free flaw was found in the Linux kernel's core dump subsystem. This flaw could allow a local     user to crash the system. (CVE-2023-1249)

    A flaw that boot CPU could be vulnerable for the speculative execution behavior kind of attacks in the     Linux kernel X86 CPU Power management options functionality was found in the way user resuming CPU from     suspend-to-RAM. A local user could use this flaw to potentially get unauthorized access to some memory of     the CPU similar to the speculative execution behavior kind of attacks. (CVE-2023-1637)

    Improper restriction of operations within the bounds of a memory buffer in some Intel(R) i915 Graphics     drivers for linux before kernel version 6.2.10 may allow an authenticated user to potentially enable     escalation of privilege via local access. (CVE-2023-28410)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

    cifs: Fix UAF in cifs_demultiplex_thread()(CVE-2023-52572)

    net: fix data-races around sk-sk_forward_alloc(CVE-2024-53124)

    quota: flush quota_release_work upon quota writeback(CVE-2024-56780)

    af_packet: avoid erroring out after sock_init_data() in packet_create()(CVE-2024-56606)

    net: defer final 'struct net' free in netns dismantle(CVE-2024-56658)

    netfilter: x_tables: fix LED ID check in led_tg_check()(CVE-2024-56650)

    mm: hugetlb: independent PMD page table shared count(CVE-2024-57883)

    NFSv4.0: Fix a use-after-free problem in the asynchronous open()(CVE-2024-53173)

    NFSD: Prevent NULL dereference in nfsd4_process_cb_update()(CVE-2024-53217)

    netfilter: conntrack: clamp maximum hashtable size to INT_MAX(CVE-2025-21648)

    vfio/platform: check the bounds of read/write syscalls(CVE-2025-21687)

    mm: fix unexpected zeroed page mapping with zram swap(CVE-2022-49052)

    ext4: fix race condition between ext4_write and ext4_convert_inline_data(CVE-2022-49414)

    block: Fix handling of offline queues in blk_mq_alloc_request_hctx()(CVE-2022-49720)

    scsi: libfc: Fix use after free in fc_exch_abts_resp()(CVE-2022-49114)

    nbd: don't allow reconnect after disconnect(CVE-2025-21731)

    md/bitmap: don't set sb values if can't pass sanity check(CVE-2022-49526)

    ARM: hisi: Add missing of_node_put after of_find_compatible_node(CVE-2022-49447)

    bpf, arm64: Clear prog-jited_len along prog-jited(CVE-2022-49341)

    extcon: Modify extcon device to be created after driver data is set(CVE-2022-49308)

    scsi: target: tcmu: Fix possible page UAF(CVE-2022-49053)

    drm/plane: Move range check for format_count earlier(CVE-2021-47659)

    trace_events_hist: add check for return value of 'create_hist_field'(CVE-2023-53005)

    tracing: Make sure trace_printk() can output as soon as it can be used(CVE-2023-53007)

    bpf: Fix pointer-leak due to insufficient speculative store bypass mitigation(CVE-2023-53024)

    sunrpc: fix one UAF issue caused by sunrpc kernel tcp socket(CVE-2024-53168)

    tracing/histograms: Fix memory leak problem(CVE-2022-49648)

    vrf: use RCU protection in l3mdev_l3_out()(CVE-2025-21791)

    net_sched: sch_sfq: don't allow 1 packet limit(CVE-2024-57996)

    net: sched: Disallow replacing of child qdisc from one parent to another(CVE-2025-21700)

    geneve: Fix use-after-free in geneve_find_dev().(CVE-2025-21858)

    macsec: fix UAF bug for real_dev(CVE-2022-49390)

    net: let net.core.dev_weight always be non-zero(CVE-2025-21806)

    net: mdio: unexport __init-annotated mdio_bus_init()(CVE-2022-49350)

    ip: Fix data-races around sysctl_ip_fwd_update_priority.(CVE-2022-49603)

    mmc: sdio: fix possible resource leaks in some error paths(CVE-2023-52730)

    ipv4: prevent potential spectre v1 gadget in ip_metrics_convert()(CVE-2023-52997)

    pfifo_tail_enqueue: Drop new packet when sch-limit == 0(CVE-2025-21702)

    net/sched: act_skbmod: prevent kernel-infoleak(CVE-2024-35893)

    netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function.(CVE-2023-53032)

    net: openvswitch: fix leak of nested actions(CVE-2022-49086)

    net: mdio: validate parameter addr in mdiobus_get_phy()(CVE-2023-53019)

    selinux: ignore unknown extended permissions(CVE-2024-57931)

    vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF(CVE-2023-52973)

    driver: base: fix UAF when driver_attach failed(CVE-2022-49385)

    scsi: bnx2fc: Flush destroy_work queue before calling bnx2fc_interface_put()(CVE-2022-48758)

    sch_hfsc: make hfsc_qlen_notify() idempotent hfsc_qlen_notify() is not idempotent either and not friendly     to its callers, like fq_codel_dequeue().(CVE-2025-38177)

    ftrace: Fix UAF when lookup kallsym after ftrace disabled(CVE-2025-38346)

    net/sched: Always pass notifications when child class becomes empty(CVE-2025-38350)

    loop: Check for overflow while configuring loop(CVE-2022-49993)

    NFSv4/pnfs: Fix a use-after-free bug in open(CVE-2022-50072)

    rxrpc: Fix listen() setting the bar too high for the prealloc rings(CVE-2022-49450)

    ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl(CVE-2021-47634)

    media: uvcvideo: Fix double free in error path(CVE-2024-57980)

    scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI(CVE-2022-49535)

    dmaengine: Fix double increment of client_count in dma_chan_get()(CVE-2022-49753)

    memcg: fix soft lockup in the OOM process(CVE-2024-57977)

    firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle(CVE-2022-49370)

    dm raid: fix accesses beyond end of raid member array(CVE-2022-49674)

    nfsd: clear acl_access/acl_default after releasing them(CVE-2025-21796)

    Input: MT - limit max slots(CVE-2024-45008)

    ubi: ubi_create_volume: Fix use-after-free when volume creation failed(CVE-2022-49388)

    drivers: core: synchronize really_probe() and dev_uevent()(CVE-2024-39501)

    scsi: qla2xxx: Suppress a kernel complaint in qla_create_qpair()(CVE-2022-49155)

    NFSD: prevent underflow in nfssvc_decode_writeargs()(CVE-2022-49280)

    dm integrity: fix memory corruption when tag_size is less than digest size(CVE-2022-49044)

    cpufreq: governor: Use kobject release() method to free dbs_data(CVE-2022-49513)

    virtio_console: eliminate anonymous module_init  module_exit(CVE-2022-49100)

    mm/khugepaged: fix -anon_vma race(CVE-2023-52935)

    tty: fix deadlock caused by calling printk() under tty_port-lock(CVE-2022-49441)

    tty: synclink_gt: Fix null-pointer-dereference in slgt_clean()(CVE-2022-49307)

    dyndbg: fix old BUG_ON in control parser(CVE-2024-35947)

    ext4: fix OOB read when checking dotdot dir(CVE-2025-37785)

    arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array(CVE-2025-21785)

    net_sched: sch_sfq: move the limit validation(CVE-2025-37752)

    ext4: update s_journal_inum if it changes after journal replay(CVE-2023-53091)

    arp: use RCU protection in arp_xmit()(CVE-2025-21762)

    io_uring: prevent opcode speculation(CVE-2025-21863)

    jbd2: remove wrong sb-s_sequence check(CVE-2025-37839)

    udf: Fix a slab-out-of-bounds write bug in udf_find_entry()(CVE-2022-49846)

    udp: Fix memory accounting leak.(CVE-2025-22058)

    nvmet: avoid potential UAF in nvmet_req_complete()(CVE-2023-53116)

    ext4: fix off-by-one error in do_split(CVE-2025-23150)

    cgroup: Use separate src/dst nodes when preloading css_sets for migration(CVE-2022-49647)

    PM: hibernate: defer device probing when resuming from hibernation(CVE-2022-50202)

    video: fbdev: amba-clcd: Fix refcount leak bugs(CVE-2022-50109)

    mmc: sdhci-pci: Fix possible memory leak caused by missing pci_dev_put()(CVE-2022-49787)

    capabilities: fix undefined behavior in bit shift for CAP_TO_MASK(CVE-2022-49870)

    tty: vt: initialize unicode screen buffer(CVE-2022-50222)

    ndisc: extend RCU protection in ndisc_send_skb()(CVE-2025-21760)

    ndisc: use RCU protection in ndisc_alloc_skb()(CVE-2025-21764)

    ata: libata-transport: fix double ata_host_put() in ata_tport_add()(CVE-2022-49826)

    proc: fix UAF in proc_get_inode()(CVE-2025-21999)

    vt: Clear selection before changing the font(CVE-2022-49948)

    module: ensure that kobject_put() is safe for module type kobjects(CVE-2025-37995)

    openvswitch: use RCU protection in ovs_vport_cmd_fill_info()(CVE-2025-21761)

    arm64: cacheinfo: Fix incorrect assignment of signed error value to unsigned fw_level(CVE-2022-49964)

    neighbour: use RCU protection in __neigh_notify()(CVE-2025-21763)

    ipv6: mcast: extend RCU protection in igmp6_send()(CVE-2025-21759)

    bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb()(CVE-2022-49840)

    ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network(CVE-2022-49865)

    ftrace: Fix use-after-free for dynamic ftrace_ops(CVE-2022-49892)

    ipv6: fix WARNING in ip6_route_net_exit_late()(CVE-2022-49903)

    net: mdio: fix undefined behavior in bit shift for __mdiobus_register(CVE-2022-49907)

     ipvs: fix WARNING in ip_vs_app_net_cleanup() (CVE-2022-49917)

    ipvs: fix WARNING in __ip_vs_cleanup_batch()(CVE-2022-49918)

    net: sched: Fix use after free in red_enqueue()(CVE-2022-49921)

    drivers:md:fix a potential use-after-free bug(CVE-2022-50022)

    scsi: qla2xxx: Fix crash due to stale SRB access around I/O timeouts(CVE-2022-50098)

    sched, cpuset: Fix dl_cpu_busy() panic due to empty cs-cpus_allowed(CVE-2022-50103)

    dm crypt: add cond_resched() to dmcrypt_write()(CVE-2023-53051)

    erspan: do not use skb_mac_header() in ndo_start_xmit()(CVE-2023-53053)

    net: usb: smsc95xx: Limit packet length to skb-len(CVE-2023-53062)

    qed/qed_sriov: guard against NULL derefs from qed_iov_get_vf_info(CVE-2023-53066)

    net: tunnels: annotate lockless accesses to dev-needed_headroom(CVE-2023-53109)

    net: usb: smsc75xx: Limit packet length to skb-len(CVE-2023-53125)

    xfrm: state: fix out-of-bounds read during lookup(CVE-2024-57982)

    net: fix geneve_opt length integer overflow(CVE-2025-22055)

    sch_htb: make htb_qlen_notify() idempotent(CVE-2025-37932)

    sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue()(CVE-2025-38000)

    dm: fix unconditional IO throttle caused by REQ_PREFLUSH(CVE-2025-38063)

    crypto: algif_hash - fix double free in hash_accept(CVE-2025-38079)

    net: ch9200: fix uninitialised access during mii_nway_restart(CVE-2025-38086)

    ipc: fix to protect IPCS lookups using RCU(CVE-2025-38212)

    ext4: inline: fix len overflow in ext4_prepare_inline_data(CVE-2025-38222)

    bpf: Fix WARN() in get_bpf_raw_tp_regs(CVE-2025-38285)

    fbdev: core: fbcvt: avoid division by 0 in fb_cvt_hperiod()(CVE-2025-38312)

    jbd2: fix data-race and null-ptr-deref in jbd2_journal_dirty_metadata()(CVE-2025-38337)

    ACPICA: Refuse to evaluate a method if arguments are missing(CVE-2025-38386)

    perf: Fix sample vs do_exit()(CVE-2025-38424)

    clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns(CVE-2025-38499)

    tracing: Fix race issue between cpu buffer write and swap(CVE-2023-53368)

    ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS(CVE-2022-50315)

    usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info()(CVE-2022-50544)

    ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer(CVE-2023-53395)

    usb: net: sierra: check for no status endpoint(CVE-2025-38474)

    mtd: Fix device name leak when register device failed in add_mtd_device()(CVE-2022-50566)

    ext4: add bounds checking in get_max_inline_xattr_value_size()(CVE-2023-53285)

    posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()(CVE-2025-38352)

    tpm: tpm_crb: Add the missed acpi_put_table() to fix memory leak(CVE-2022-50389)

    scsi: qla4xxx: Add length check when parsing nlattrs(CVE-2023-53456)

    ext4: avoid deadlock in fs reclaim with page writeback(CVE-2023-53149)

    kobject: Add sanity check for kset-kobj.ktype in kset_register()(CVE-2023-53480)

    virtio-mmio: don't break lifecycle of vm_dev(CVE-2023-53515)

    PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free(CVE-2023-53446)

    tracing: Limit access to parser-buffer when trace_get_user failed(CVE-2025-39683)

    binfmt_misc: fix shift-out-of-bounds in check_special_flags(CVE-2022-50497)

    arm64/ptrace: Fix stack-out-of-bounds read in regs_get_kernel_stack_nth()(CVE-2025-38320)

    tee: fix NULL pointer dereference in tee_shm_put(CVE-2025-39865)

    udf: Fix uninitialized array access for some pathnames(CVE-2023-53165)

    media: uvcvideo: Handle cameras with invalid descriptors(CVE-2023-53437)

    ext4: avoid crash when inline data creation follows DIO write(CVE-2022-50435)

    serial: 8250: Reinit port-pm on port specific driver unbind(CVE-2023-53176)

    rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails(CVE-2023-53307)

    HID: core: do not bypass hid_hw_raw_request(CVE-2025-38494)

    udf: Do not bother merging very long extents(CVE-2023-53506)

    crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg(CVE-2025-39964)

    do_change_type(): refuse to operate on unmounted/not ours mounts(CVE-2025-38498)

    spi: qup: Don't skip cleanup in remove's error path(CVE-2023-53567)

    calipso: Fix null-ptr-deref in calipso_req_{set,del}attr().(CVE-2025-38181)

    scsi: qla2xxx: Pointer may be dereferenced(CVE-2023-53150)

    ftrace: Also allocate and copy hash for reading of filter files(CVE-2025-39689)

    xhci: Remove device endpoints from bandwidth list when freeing the device(CVE-2022-50470)

    tracing/histograms: Add histograms to hist_vars if they have referenced variables(CVE-2023-53560)

    fs: writeback: fix use-after-free in __mark_inode_dirty()(CVE-2025-39866)

    drm/gem: Acquire references on GEM handles for framebuffers(CVE-2025-38449)

    usbnet: Fix linkwatch use-after-free on disconnect(CVE-2022-50220)

    dm integrity: call kmem_cache_destroy() in dm_integrity_init() error path(CVE-2023-53604)

    qede: confirm skb is allocated before using(CVE-2022-49084)

    fs: udf: fix OOB read in lengthAllocDescs handling(CVE-2025-40044)

    scsi: target: iscsi: Fix a race condition between login_work and the login thread(CVE-2022-50350)

    crypto: cavium - prevent integer overflow loading firmware(CVE-2022-50330)

    recordmcount: Fix memory leaks in the uwrite function(CVE-2023-53318)

    blk-mq: use quiesced elevator switch when reinitializing queues(CVE-2022-50552)

    pnode: terminate at peers of source(CVE-2022-50280)

    ext4: fix WARNING in mb_find_extent(CVE-2023-53317)

    drm/sched: Increment job count before swapping tail spsc queue(CVE-2025-38515)

    posix-timers: Ensure timer ID search-loop limit is valid(CVE-2023-53728)

    net: usbnet: Fix WARNING in usbnet_start_xmit/usb_submit_urb(CVE-2023-53548)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization kernel security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the linux package has been released.

ID	Name	Product	Family	Published	Updated	Severity
200382	Amazon Linux 2 : kernel (ALAS-2024-2569)	Nessus	Amazon Linux Local Security Checks	6/12/2024	2/24/2026	high
235744	EulerOS 2.0 SP10 : kernel (EulerOS-SA-2025-1520)	Nessus	Huawei Local Security Checks	5/12/2025	5/12/2025	high
278747	Ubuntu 14.04 LTS / 16.04 LTS : Linux kernel vulnerabilities (USN-7930-1)	Nessus	Ubuntu Local Security Checks	12/16/2025	2/24/2026	high
297384	EulerOS Virtualization 2.10.0 : kernel (EulerOS-SA-2026-1172)	Nessus	Huawei Local Security Checks	1/31/2026	1/31/2026	high
232643	SUSE SLES12 Security Update : kernel (SUSE-SU-2025:0834-1)	Nessus	SuSE Local Security Checks	3/12/2025	9/24/2025	high
224395	Linux Distros Unpatched Vulnerability : CVE-2021-47634	Nessus	Misc.	3/5/2025	1/14/2026	high
268566	Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987299)	Nessus	Unity Linux Local Security Checks	10/7/2025	10/15/2025	high
272768	Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989751)	Nessus	Unity Linux Local Security Checks	11/5/2025	11/5/2025	high
241806	EulerOS 2.0 SP10 : kernel (EulerOS-SA-2025-1777)	Nessus	Huawei Local Security Checks	7/10/2025	7/10/2025	high
206247	Amazon Linux 2 : kernel (ALASKERNEL-5.4-2024-076)	Nessus	Amazon Linux Local Security Checks	8/28/2024	2/26/2026	high
180564	Amazon Linux 2 : kernel (ALASKERNEL-5.10-2023-036)	Nessus	Amazon Linux Local Security Checks	9/6/2023	2/26/2026	high
297309	EulerOS Virtualization 2.10.1 : kernel (EulerOS-SA-2026-1123)	Nessus	Huawei Local Security Checks	1/31/2026	1/31/2026	high
151965	Photon OS 4.0: Linux PHSA-2021-4.0-0065	Nessus	PhotonOS Local Security Checks	7/22/2021	3/23/2026	high

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