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

  - nilfs2: fix deadlock in nilfs_count_free_blocks() A semaphore deadlock can occur if nilfs_get_block()     detects metadata corruption while locating data blocks and a superblock writeback occurs at the same time:
    task 1 task 2 ------ ------ * A file operation * nilfs_truncate() nilfs_get_block() down_read(rwsem A) <--     nilfs_bmap_lookup_contig() ... generic_shutdown_super() nilfs_put_super() * Prepare to write superblock *     down_write(rwsem B) <-- nilfs_cleanup_super() * Detect b-tree corruption * nilfs_set_log_cursor()     nilfs_bmap_convert_error() nilfs_count_free_blocks() __nilfs_error() down_read(rwsem A) <--     nilfs_set_error() down_write(rwsem B) <-- *** DEADLOCK *** Here, nilfs_get_block() readlocks rwsem A (=     NILFS_MDT(dat_inode)->mi_sem) and then calls nilfs_bmap_lookup_contig(), but if it fails due to metadata     corruption, __nilfs_error() is called from nilfs_bmap_convert_error() inside the lock section. Since
    __nilfs_error() calls nilfs_set_error() unless the filesystem is read-only and nilfs_set_error() attempts     to writelock rwsem B (= nilfs->ns_sem) to write back superblock exclusively, hierarchical lock acquisition     occurs in the order rwsem A -> rwsem B. Now, if another task starts updating the superblock, it may     writelock rwsem B during the lock sequence above, and can deadlock trying to readlock rwsem A in     nilfs_count_free_blocks(). However, there is actually no need to take rwsem A in nilfs_count_free_blocks()     because it, within the lock section, only reads a single integer data on a shared struct with     nilfs_sufile_get_ncleansegs(). This has been the case after commit aa474a220180 (nilfs2: add local     variable to cache the number of clean segments), that is, even before this bug was introduced. So, this     resolves the deadlock problem by just not taking the semaphore in nilfs_count_free_blocks().
    (CVE-2022-49850)

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

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:02173-1 advisory.

    The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2022-49775: tcp: cdg: allow tcp_cdg_release() to be called multiple times (bsc#1242245).
    - CVE-2024-53168: net: make sock_inuse_add() available (bsc#1234887).
    - CVE-2024-56558: nfsd: make sure exp active before svc_export_show (bsc#1235100).
    - CVE-2025-21999: proc: fix UAF in proc_get_inode() (bsc#1240802).
    - CVE-2025-22056: netfilter: nft_tunnel: fix geneve_opt type confusion addition (bsc#1241525).
    - CVE-2025-23145: mptcp: fix NULL pointer in can_accept_new_subflow (bsc#1242596).
    - CVE-2025-37789: net: openvswitch: fix nested key length validation in the set() action (bsc#1242762).
    - CVE-2024-28956: x86/its: Add support for ITS-safe indirect thunk (bsc#1242006).
    - CVE-2025-37785: ext4: fix OOB read when checking dotdot dir (bsc#1241640).


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.

An update of the linux package has been released.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989542 advisory.

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

    nilfs2: fix deadlock in nilfs_count_free_blocks()

    A semaphore deadlock can occur if nilfs_get_block() detects metadata     corruption while locating data blocks and a superblock writeback occurs at     the same time:

    task 1                               task 2
    ------                               ------
    * A file operation *     nilfs_truncate()       nilfs_get_block()         down_read(rwsem A) <--         nilfs_bmap_lookup_contig()           ...                            generic_shutdown_super()                                            nilfs_put_super()
                                             * Prepare to write superblock *                                              down_write(rwsem B) <--                                              nilfs_cleanup_super()
          * Detect b-tree corruption *         nilfs_set_log_cursor()           nilfs_bmap_convert_error()             nilfs_count_free_blocks()
            __nilfs_error()                        down_read(rwsem A) <--               nilfs_set_error()                 down_write(rwsem B) <--

                               *** DEADLOCK ***

    Here, nilfs_get_block() readlocks rwsem A (= NILFS_MDT(dat_inode)->mi_sem)     and then calls nilfs_bmap_lookup_contig(), but if it fails due to metadata     corruption, __nilfs_error() is called from nilfs_bmap_convert_error()     inside the lock section.

    Since __nilfs_error() calls nilfs_set_error() unless the filesystem is     read-only and nilfs_set_error() attempts to writelock rwsem B (=     nilfs->ns_sem) to write back superblock exclusively, hierarchical lock     acquisition occurs in the order rwsem A -> rwsem B.

    Now, if another task starts updating the superblock, it may writelock     rwsem B during the lock sequence above, and can deadlock trying to     readlock rwsem A in nilfs_count_free_blocks().

    However, there is actually no need to take rwsem A in     nilfs_count_free_blocks() because it, within the lock section, only reads     a single integer data on a shared struct with     nilfs_sufile_get_ncleansegs().  This has been the case after commit     aa474a220180 (nilfs2: add local variable to cache the number of clean     segments), that is, even before this bug was introduced.

    So, this resolves the deadlock problem by just not taking the semaphore in     nilfs_count_free_blocks().

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 version of kernel installed on the remote host is prior to 5.10.155-138.670. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2022-023 advisory.

    A memory overflow vulnerability was found in the Linux kernel's ipc functionality of the memcg subsystem,     in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local     user to starve the resources, causing a denial of service. The highest threat from this vulnerability is     to system availability. (CVE-2021-3759)

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

    inet: fully convert sk->sk_rx_dst to RCU rules (CVE-2021-47103)

    A vulnerability was found in Linux Kernel. It has been declared as problematic. Affected by this     vulnerability is the function ipv6_renew_options of the component IPv6 Handler. The manipulation leads to     memory leak. The attack can be launched remotely. It is recommended to apply a patch to fix this issue.
    The identifier VDB-211021 was assigned to this vulnerability. (CVE-2022-3524)

    A vulnerability classified as problematic was found in Linux Kernel. This vulnerability affects the     function bnx2x_tpa_stop of the file drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c of the component BPF.
    The manipulation leads to memory leak. It is recommended to apply a patch to fix this issue. VDB-211042 is     the identifier assigned to this vulnerability. (CVE-2022-3542)

    A vulnerability classified as critical was found in Linux Kernel. Affected by this vulnerability is the     function l2cap_reassemble_sdu of the file net/bluetooth/l2cap_core.c of the component Bluetooth. The     manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The associated     identifier of this vulnerability is VDB-211087. (CVE-2022-3564)

    A vulnerability was found in Linux Kernel. It has been declared as problematic. Affected by this     vulnerability is the function intr_callback of the file drivers/net/usb/r8152.c of the component BPF. The     manipulation leads to logging of excessive data. The attack can be launched remotely. It is recommended to     apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-211363.
    (CVE-2022-3594)

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

    arm64: topology: fix possible overflow in amu_fie_setup() (CVE-2022-48657)

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

    nilfs2: fix use-after-free bug of ns_writer on remount (CVE-2022-49834)

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

    can: j1939: j1939_send_one(): fix missing CAN header initialization (CVE-2022-49845)

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

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

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

    nilfs2: fix deadlock in nilfs_count_free_blocks() (CVE-2022-49850)

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

    net: macvlan: fix memory leaks of macvlan_common_newlink (CVE-2022-49853)

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

    tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header (CVE-2022-49862)

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

    can: af_can: fix NULL pointer dereference in can_rx_register() (CVE-2022-49863)

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

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

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

    bnxt_en: Fix possible crash in bnxt_hwrm_set_coal() (CVE-2022-49869)

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

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

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

    net: tun: Fix memory leaks of napi_get_frags (CVE-2022-49871)

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

    net: gso: fix panic on frag_list with mixed head alloc types (CVE-2022-49872)

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

    bpf: Fix wrong reg type conversion in release_reference() (CVE-2022-49873)

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

    HID: hyperv: fix possible memory leak in mousevsc_probe() (CVE-2022-49874)

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

    bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE (CVE-2022-49875)

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

    bpf, sockmap: Fix the sk->sk_forward_alloc warning of sk_stream_kill_queues (CVE-2022-49877)

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

    ext4: fix BUG_ON() when directory entry has invalid rec_len (CVE-2022-49879)

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

    ext4: fix warning in 'ext4_da_release_space' (CVE-2022-49880)

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

    ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init() (CVE-2022-49885)

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

    capabilities: fix potential memleak on error path from vfs_getxattr_alloc() (CVE-2022-49890)

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

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

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

    fscrypt: stop using keyrings subsystem for fscrypt_master_key (CVE-2022-49899)

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

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

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

    net, neigh: Fix null-ptr-deref in neigh_table_clear() (CVE-2022-49904)

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

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

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

    btrfs: fix ulist leaks in error paths of qgroup self tests (CVE-2022-49912)

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

    btrfs: fix inode list leak during backref walking at find_parent_nodes() (CVE-2022-49913)

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

    btrfs: fix inode list leak during backref walking at resolve_indirect_refs() (CVE-2022-49914)

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

    mISDN: fix possible memory leak in mISDN_register_device() (CVE-2022-49915)

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

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

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

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

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

    netfilter: nf_tables: release flow rule object from commit path (CVE-2022-49919)

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

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

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

    RDMA/core: Fix null-ptr-deref in ib_core_cleanup() (CVE-2022-49925)

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

    nfs4: Fix kmemleak when allocate slot failed (CVE-2022-49927)

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

    binder: fix UAF of alloc->vma in race with munmap() (CVE-2022-50240)

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

    NFSD: fix use-after-free on source server when doing inter-server copy (CVE-2022-50241)

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

    sctp: handle the error returned from sctp_auth_asoc_init_active_key (CVE-2022-50243)

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

    xen/gntdev: Prevent leaking grants (CVE-2022-50257)

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

    kcm: annotate data-races around kcm->rx_wait (CVE-2022-50265)

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

    vhost/vsock: Use kvmalloc/kvfree for larger packets. (CVE-2022-50271)

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

    mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages (CVE-2022-50285)

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

    kcm: annotate data-races around kcm->rx_psock (CVE-2022-50291)

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

    md: Replace snprintf with scnprintf (CVE-2022-50299)

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

    nbd: Fix hung when signal interrupts nbd_start_device_ioctl() (CVE-2022-50314)

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

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

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

    jbd2: fix potential use-after-free in jbd2_fc_wait_bufs (CVE-2022-50328)

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

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

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

    binder: fix UAF of alloc->vma in race with munmap() (CVE-2022-50338)

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

    ext4: fix null-ptr-deref in ext4_write_info (CVE-2022-50344)

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

    nfsd: Fix a memory leak in an error handling path (CVE-2022-50348)

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

    net: hns: fix possible memory leak in hnae_ae_register() (CVE-2022-50352)

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

    net: sched: sfb: fix null pointer access issue when sfb_init() fails (CVE-2022-50356)

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

    btrfs: fix race between quota enable and quota rescan ioctl (CVE-2022-50379)

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

    mm: /proc/pid/smaps_rollup: fix no vma's null-deref (CVE-2022-50380)

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

    net/ieee802154: reject zero-sized raw_sendmsg() (CVE-2022-50397)

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

    net: If sock is dead don't access sock's sk_wq in sk_stream_wait_memory (CVE-2022-50409)

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

    scsi: libsas: Fix use-after-free bug in smp_execute_task_sg() (CVE-2022-50422)

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

    kernfs: fix use-after-free in __kernfs_remove (CVE-2022-50432)

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

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

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

    net: sched: cake: fix null pointer access issue when cake_init() fails (CVE-2022-50452)

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

    scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername() (CVE-2022-50459)

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

    cifs: Fix xid leak in cifs_flock() (CVE-2022-50460)

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

    fs/binfmt_elf: Fix memory leak in load_elf_binary() (CVE-2022-50466)

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

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

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

    xen/gntdev: Accommodate VMA splitting (CVE-2022-50471)

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

    iommu/vt-d: Clean up si_domain in the init_dmars() error path (CVE-2022-50482)

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

    ext4: fix potential memory leak in ext4_fc_record_regions() (CVE-2022-50512)

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

    tipc: fix an information leak in tipc_topsrv_kern_subscr (CVE-2022-50531)

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

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

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

    tipc: fix a null-ptr-deref in tipc_topsrv_accept (CVE-2022-50555)

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

    xfrm: Update ipcomp_scratches with NULL when freed (CVE-2022-50569)

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

    arm64: ftrace: fix module PLTs with mcount (CVE-2022-50579)

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

    blk-throttle: prevent overflow while calculating wait time (CVE-2022-50580)

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

    regulator: core: Prevent integer underflow (CVE-2022-50582)

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

    ext4: fix potential memory leak in ext4_fc_record_modified_inode() (CVE-2022-50622)

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

    mm: hugetlb: fix UAF in hugetlb_handle_userfault (CVE-2022-50630)

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

    mmc: core: Fix kernel panic when remove non-standard SDIO card (CVE-2022-50640)

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

    cifs: Fix xid leak in cifs_copy_file_range() (CVE-2022-50643)

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

    RDMA/rxe: Fix kernel NULL pointer dereference error (CVE-2022-50671)

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

    net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks() (CVE-2022-50676)

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

    i40e: Fix DMA mappings leak (CVE-2022-50679)

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

    selinux: enable use of both GFP_KERNEL and GFP_ATOMIC in convert_context() (CVE-2022-50699)

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

    net/ieee802154: don't warn zero-sized raw_sendmsg() (CVE-2022-50706)

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

    net/mlx5: Fix possible use-after-free in async command interface (CVE-2022-50726)

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

    crypto: akcipher - default implementation for setting a private key (CVE-2022-50731)

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

    usb: idmouse: fix an uninit-value in idmouse_open (CVE-2022-50733)

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

    net: fix UAF issue in nfqnl_nf_hook_drop() when ops_init() failed (CVE-2022-50780)

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

    ipv6: ensure sane device mtu in tunnels (CVE-2022-50816)

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

    net: hsr: avoid possible NULL deref in skb_clone() (CVE-2022-50817)

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

    jbd2: add miss release buffer head in fc_do_one_pass() (CVE-2022-50835)

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

    jbd2: fix potential buffer head reference count leak (CVE-2022-50839)

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

    drm/virtio: Check whether transferred 2D BO is shmem (CVE-2022-50842)

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

    cifs: Fix xid leak in cifs_ses_add_channel() (CVE-2022-50856)

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

    cifs: Fix the error length of VALIDATE_NEGOTIATE_INFO message (CVE-2022-50859)

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

    tcp: fix a signed-integer-overflow bug in tcp_add_backlog() (CVE-2022-50865)

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

    drm: Prevent drm_copy_field() to attempt copying a NULL pointer (CVE-2022-50884)

    A use-after-free flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux Kernel due to a race     problem. This flaw leads to a denial of service issue. (CVE-2023-0590)

    An out-of-bounds memory access flaw was found in the Linux kernel's TUN/TAP device driver functionality in     how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows     a local user to crash or potentially escalate their privileges on the system. (CVE-2023-3812)

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

    binder: fix UAF of alloc->vma in race with munmap() (CVE-2023-54157)

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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986827 advisory.

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

    nilfs2: fix deadlock in nilfs_count_free_blocks()

    A semaphore deadlock can occur if nilfs_get_block() detects metadata     corruption while locating data blocks and a superblock writeback occurs at     the same time:

    task 1                               task 2
    ------                               ------
    * A file operation *     nilfs_truncate()       nilfs_get_block()         down_read(rwsem A) <--         nilfs_bmap_lookup_contig()           ...                            generic_shutdown_super()                                            nilfs_put_super()
                                             * Prepare to write superblock *                                              down_write(rwsem B) <--                                              nilfs_cleanup_super()
          * Detect b-tree corruption *         nilfs_set_log_cursor()           nilfs_bmap_convert_error()             nilfs_count_free_blocks()
            __nilfs_error()                        down_read(rwsem A) <--               nilfs_set_error()                 down_write(rwsem B) <--

                               *** DEADLOCK ***

    Here, nilfs_get_block() readlocks rwsem A (= NILFS_MDT(dat_inode)->mi_sem)     and then calls nilfs_bmap_lookup_contig(), but if it fails due to metadata     corruption, __nilfs_error() is called from nilfs_bmap_convert_error()     inside the lock section.

    Since __nilfs_error() calls nilfs_set_error() unless the filesystem is     read-only and nilfs_set_error() attempts to writelock rwsem B (=     nilfs->ns_sem) to write back superblock exclusively, hierarchical lock     acquisition occurs in the order rwsem A -> rwsem B.

    Now, if another task starts updating the superblock, it may writelock     rwsem B during the lock sequence above, and can deadlock trying to     readlock rwsem A in nilfs_count_free_blocks().

    However, there is actually no need to take rwsem A in     nilfs_count_free_blocks() because it, within the lock section, only reads     a single integer data on a shared struct with     nilfs_sufile_get_ncleansegs().  This has been the case after commit     aa474a220180 (nilfs2: add local variable to cache the number of clean     segments), that is, even before this bug was introduced.

    So, this resolves the deadlock problem by just not taking the semaphore in     nilfs_count_free_blocks().

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 version of kernel installed on the remote host is prior to 5.4.226-129.415. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2024-071 advisory.

    A flaw was found in the Linux kernel. A denial of service flaw may occur if there is a consecutive request     of the NVME_IOCTL_RESET and the NVME_IOCTL_SUBSYS_RESET through the device file of the driver, resulting     in a PCIe link disconnect. (CVE-2022-3169)

    A vulnerability classified as problematic has been found in Linux Kernel. This affects the function     fib_nh_match of the file net/ipv4/fib_semantics.c of the component IPv4 Handler. The manipulation leads to     out-of-bounds read. It is possible to initiate the attack remotely. It is recommended to apply a patch to     fix this issue. The identifier VDB-210357 was assigned to this vulnerability. (CVE-2022-3435)

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

    char: tpm: Protect tpm_pm_suspend with locks (CVE-2022-48997)

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

    ipv4: Handle attempt to delete multipath route when fib_info contains an nh reference (CVE-2022-48999)

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

    iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init() (CVE-2022-49002)

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

    tracing: Free buffers when a used dynamic event is removed (CVE-2022-49006)

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

    nilfs2: fix NULL pointer dereference in nilfs_palloc_commit_free_entry() (CVE-2022-49007)

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

    sctp: fix memory leak in sctp_stream_outq_migrate() (CVE-2022-49013)

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

    net: tun: Fix use-after-free in tun_detach() (CVE-2022-49014)

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

    net: hsr: Fix potential use-after-free (CVE-2022-49015)

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

    net: phy: fix null-ptr-deref while probe() failed (CVE-2022-49021)

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

    net/mlx5e: Fix use-after-free when reverting termination table (CVE-2022-49025)

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

    btrfs: qgroup: fix sleep from invalid context bug in btrfs_qgroup_inherit() (CVE-2022-49033)

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

    ntfs: check overflow when iterating ATTR_RECORDs (CVE-2022-49762)

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

    ntfs: fix use-after-free in ntfs_attr_find() (CVE-2022-49763)

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

    gfs2: Check sb_bsize_shift after reading superblock (CVE-2022-49769)

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

    ceph: avoid putting the realm twice when decoding snaps fails (CVE-2022-49770)

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

    dm ioctl: fix misbehavior if list_versions races with module loading (CVE-2022-49771)

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

    macvlan: enforce a consistent minimal mtu (CVE-2022-49776)

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

    Input: i8042 - fix leaking of platform device on module removal (CVE-2022-49777)

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

    kprobes: Skip clearing aggrprobe's post_handler in kprobe-on-ftrace case (CVE-2022-49779)

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

    scsi: target: tcm_loop: Fix possible name leak in tcm_loop_setup_hba_bus() (CVE-2022-49780)

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

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

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

    misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram() (CVE-2022-49788)

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

    ftrace: Fix null pointer dereference in ftrace_add_mod() (CVE-2022-49802)

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

    drbd: use after free in drbd_create_device() (CVE-2022-49811)

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

    kcm: close race conditions on sk_receive_queue (CVE-2022-49814)

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

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

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

    pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map (CVE-2022-49832)

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

    nilfs2: fix use-after-free bug of ns_writer on remount (CVE-2022-49834)

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

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

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

    ASoC: core: Fix use-after-free in snd_soc_exit() (CVE-2022-49842)

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

    can: j1939: j1939_send_one(): fix missing CAN header initialization (CVE-2022-49845)

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

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

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

    nilfs2: fix deadlock in nilfs_count_free_blocks() (CVE-2022-49850)

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

    net: macvlan: fix memory leaks of macvlan_common_newlink (CVE-2022-49853)

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

    tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header (CVE-2022-49862)

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

    can: af_can: fix NULL pointer dereference in can_rx_register() (CVE-2022-49863)

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

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

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

    bnxt_en: Fix possible crash in bnxt_hwrm_set_coal() (CVE-2022-49869)

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

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

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

    net: tun: Fix memory leaks of napi_get_frags (CVE-2022-49871)

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

    net: gso: fix panic on frag_list with mixed head alloc types (CVE-2022-49872)

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

    HID: hyperv: fix possible memory leak in mousevsc_probe() (CVE-2022-49874)

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

    bpf, sockmap: Fix the sk->sk_forward_alloc warning of sk_stream_kill_queues (CVE-2022-49877)

    A data race flaw was found in the Linux kernel, between where con is allocated and con->sock is set. This     issue leads to a NULL pointer dereference when accessing con->sock->sk in net/tipc/topsrv.c in the tipc     protocol in the Linux kernel. (CVE-2023-1382)

    In the Linux kernel 6.0.8, there is an out-of-bounds read in ntfs_attr_find in fs/ntfs/attrib.c.
    (CVE-2023-26607)

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 remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:02262-1 advisory.

    The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security bugfixes.

    The following security bugs were fixed:

    - CVE-2022-49110: netfilter: conntrack: revisit gc autotuning (bsc#1237981).
    - CVE-2022-49139: Bluetooth: fix null ptr deref on hci_sync_conn_complete_evt (bsc#1238032).
    - CVE-2022-49767: 9p/trans_fd: always use O_NONBLOCK read/write (bsc#1242493).
    - CVE-2022-49775: tcp: cdg: allow tcp_cdg_release() to be called multiple times (bsc#1242245).
    - CVE-2022-49858: octeontx2-pf: Fix SQE threshold checking (bsc#1242589).
    - CVE-2023-53058: net/mlx5: E-Switch, Fix an Oops in error handling code (bsc#1242237).
    - CVE-2023-53060: igb: revert rtnl_lock() that causes deadlock (bsc#1242241).
    - CVE-2023-53064: iavf: Fix hang on reboot with ice (bsc#1242222).
    - CVE-2023-53066: qed/qed_sriov: guard against NULL derefs from qed_iov_get_vf_info (bsc#1242227).
    - CVE-2023-53079: net/mlx5: Fix steering rules cleanup (bsc#1242765).
    - CVE-2023-53114: i40e: Fix kernel crash during reboot when adapter is in recovery mode (bsc#1242398).
    - CVE-2023-53134: bnxt_en: Avoid order-5 memory allocation for TPA data (bsc#1242380)
    - CVE-2024-53168: net: make sock_inuse_add() available (bsc#1234887).
    - CVE-2024-56558: nfsd: make sure exp active before svc_export_show (bsc#1235100).
    - CVE-2025-21888: RDMA/mlx5: Fix a WARN during dereg_mr for DM type (bsc#1240177).
    - CVE-2025-21999: proc: fix UAF in proc_get_inode() (bsc#1240802).
    - CVE-2025-22056: netfilter: nft_tunnel: fix geneve_opt type confusion addition (bsc#1241525).
    - CVE-2025-22060: net: mvpp2: Prevent parser TCAM memory corruption (bsc#1241526).
    - CVE-2025-23138: watch_queue: fix pipe accounting mismatch (bsc#1241648).
    - CVE-2025-23145: mptcp: fix NULL pointer in can_accept_new_subflow (bsc#1242596).
    - CVE-2025-37785: ext4: fix OOB read when checking dotdot dir (bsc#1241640).
    - CVE-2025-37789: net: openvswitch: fix nested key length validation in the set() action (bsc#1242762).


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 version of kernel installed on the remote host is prior to 4.14.301-224.520. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2022-1903 advisory.

    A vulnerability was found in Linux Kernel. It has been declared as problematic. Affected by this     vulnerability is the function ipv6_renew_options of the component IPv6 Handler. The manipulation leads to     memory leak. The attack can be launched remotely. It is recommended to apply a patch to fix this issue.
    The identifier VDB-211021 was assigned to this vulnerability. (CVE-2022-3524)

    A use-after-free flaw was found in the Linux kernel's implementation of logical link control and     adaptation protocol (L2CAP), part of the Bluetooth stack in the l2cap_connect and l2cap_le_connect_req     functions. An attacker with physical access within the range of standard Bluetooth transmission could     execute code leaking kernel memory via Bluetooth if within proximity of the victim. (CVE-2022-42896)

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

    iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init() (CVE-2022-49002)

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

    nilfs2: fix NULL pointer dereference in nilfs_palloc_commit_free_entry() (CVE-2022-49007)

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

    net: hsr: Fix potential use-after-free (CVE-2022-49015)

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

    net: phy: fix null-ptr-deref while probe() failed (CVE-2022-49021)

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

    btrfs: qgroup: fix sleep from invalid context bug in btrfs_qgroup_inherit() (CVE-2022-49033)

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

    ntfs: check overflow when iterating ATTR_RECORDs (CVE-2022-49762)

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

    ntfs: fix use-after-free in ntfs_attr_find() (CVE-2022-49763)

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

    gfs2: Check sb_bsize_shift after reading superblock (CVE-2022-49769)

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

    dm ioctl: fix misbehavior if list_versions races with module loading (CVE-2022-49771)

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

    macvlan: enforce a consistent minimal mtu (CVE-2022-49776)

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

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

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

    misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram() (CVE-2022-49788)

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

    ftrace: Fix null pointer dereference in ftrace_add_mod() (CVE-2022-49802)

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

    drbd: use after free in drbd_create_device() (CVE-2022-49811)

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

    kcm: close race conditions on sk_receive_queue (CVE-2022-49814)

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

    pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map (CVE-2022-49832)

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

    nilfs2: fix use-after-free bug of ns_writer on remount (CVE-2022-49834)

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

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

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

    ASoC: core: Fix use-after-free in snd_soc_exit() (CVE-2022-49842)

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

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

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

    nilfs2: fix deadlock in nilfs_count_free_blocks() (CVE-2022-49850)

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

    net: macvlan: fix memory leaks of macvlan_common_newlink (CVE-2022-49853)

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

    tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header (CVE-2022-49862)

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

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

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

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

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

    net: gso: fix panic on frag_list with mixed head alloc types (CVE-2022-49872)

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

    HID: hyperv: fix possible memory leak in mousevsc_probe() (CVE-2022-49874)

    In the Linux kernel 6.0.8, there is an out-of-bounds read in ntfs_attr_find in fs/ntfs/attrib.c.
    (CVE-2023-26607)

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.

ID	Name	Product	Family	Published	Updated	Severity
260482	Linux Distros Unpatched Vulnerability : CVE-2022-49850	Nessus	Misc.	9/2/2025	7/17/2026	medium
241036	SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2025:02173-1)	Nessus	SuSE Local Security Checks	7/1/2025	6/25/2026	medium
151965	Photon OS 4.0: Linux PHSA-2021-4.0-0065	Nessus	PhotonOS Local Security Checks	7/22/2021	9/15/2026	high
273168	Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-989542)	Nessus	Unity Linux Local Security Checks	11/5/2025	8/21/2026	medium
168520	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2022-023 (ALASKERNEL-5.10-2022-023)	Nessus	Amazon Linux Local Security Checks	12/8/2022	2/11/2026	high
269030	Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986827)	Nessus	Unity Linux Local Security Checks	10/7/2025	10/15/2025	medium
200364	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2024-071 (ALASKERNEL-5.4-2024-071)	Nessus	Amazon Linux Local Security Checks	6/11/2024	6/4/2026	high
241966	SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2025:02262-1)	Nessus	SuSE Local Security Checks	7/11/2025	6/25/2026	high
168676	Amazon Linux 2 : kernel (ALAS-2022-1903)	Nessus	Amazon Linux Local Security Checks	12/13/2022	2/24/2026	high

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