In the Linux kernel, the following vulnerability has been resolved: ext4: fix null-ptr-deref in ext4_write_info I caught a null-ptr-deref bug as follows: ================================================================== KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f] CPU: 1 PID: 1589 Comm: umount Not tainted 5.10.0-02219-dirty #339 RIP: 0010:ext4_write_info+0x53/0x1b0 [...] Call Trace: dquot_writeback_dquots+0x341/0x9a0 ext4_sync_fs+0x19e/0x800 __sync_filesystem+0x83/0x100 sync_filesystem+0x89/0xf0 generic_shutdown_super+0x79/0x3e0 kill_block_super+0xa1/0x110 deactivate_locked_super+0xac/0x130 deactivate_super+0xb6/0xd0 cleanup_mnt+0x289/0x400 __cleanup_mnt+0x16/0x20 task_work_run+0x11c/0x1c0 exit_to_user_mode_prepare+0x203/0x210 syscall_exit_to_user_mode+0x5b/0x3a0 do_syscall_64+0x59/0x70 entry_SYSCALL_64_after_hwframe+0x44/0xa9 ================================================================== Above issue may happen as follows: ------------------------------------- exit_to_user_mode_prepare task_work_run __cleanup_mnt cleanup_mnt deactivate_super deactivate_locked_super kill_block_super generic_shutdown_super shrink_dcache_for_umount dentry = sb->s_root sb->s_root = NULL <--- Here set NULL sync_filesystem __sync_filesystem sb->s_op->sync_fs > ext4_sync_fs dquot_writeback_dquots sb->dq_op->write_info > ext4_write_info ext4_journal_start(d_inode(sb->s_root), EXT4_HT_QUOTA, 2) d_inode(sb->s_root) s_root->d_inode <--- Null pointer dereference To solve this problem, we use ext4_journal_start_sb directly to avoid s_root being used.

The version of kernel installed on the remote host is prior to 5.15.75-48.135. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2025-090 advisory.

    A vulnerability, which was classified as problematic, has been found in Linux Kernel. This issue affects     the function nilfs_attach_log_writer of the file fs/nilfs2/segment.c of the component BPF. The     manipulation leads to memory leak. The attack may be initiated remotely. It is recommended to apply a     patch to fix this issue. The identifier VDB-211961 was assigned to this vulnerability. (CVE-2022-3646)

    drivers/scsi/stex.c in the Linux kernel through 5.19.9 allows local users to obtain sensitive information     from kernel memory because stex_queuecommand_lck lacks a memset for the PASSTHRU_CMD case.
    (CVE-2022-40768)

    The Linux kernel NFSD implementation prior to versions 5.19.17 and 6.0.2 are vulnerable to buffer     overflow. NFSD tracks the number of pages held by each NFSD thread by combining the receive and send     buffers of a remote procedure call (RPC) into a single array of pages. A client can force the send buffer     to shrink by sending an RPC message over TCP with garbage data added at the end of the message. The RPC     message with garbage data is still correctly formed according to the specification and is passed forward     to handlers. Vulnerable code in NFSD is not expecting the oversized request and writes beyond the     allocated buffer space. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (CVE-2022-43945)

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

    NFSD: Protect against send buffer overflow in NFSv2 READDIR (CVE-2022-50235)

    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:

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

    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:

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

    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: Protect against send buffer overflow in NFSv3 READ (CVE-2022-50345)

    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:

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

    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:

    NFSD: Protect against send buffer overflow in NFSv2 READ (CVE-2022-50410)

    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:

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

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

  - ext4: fix null-ptr-deref in ext4_write_info I caught a null-ptr-deref bug as follows:
    ================================================================== KASAN: null-ptr-deref in range     [0x0000000000000068-0x000000000000006f] CPU: 1 PID: 1589 Comm: umount Not tainted 5.10.0-02219-dirty #339     RIP: 0010:ext4_write_info+0x53/0x1b0 [...] Call Trace: dquot_writeback_dquots+0x341/0x9a0     ext4_sync_fs+0x19e/0x800 __sync_filesystem+0x83/0x100 sync_filesystem+0x89/0xf0     generic_shutdown_super+0x79/0x3e0 kill_block_super+0xa1/0x110 deactivate_locked_super+0xac/0x130     deactivate_super+0xb6/0xd0 cleanup_mnt+0x289/0x400 __cleanup_mnt+0x16/0x20 task_work_run+0x11c/0x1c0     exit_to_user_mode_prepare+0x203/0x210 syscall_exit_to_user_mode+0x5b/0x3a0 do_syscall_64+0x59/0x70     entry_SYSCALL_64_after_hwframe+0x44/0xa9     ================================================================== Above issue may happen as follows:
    ------------------------------------- exit_to_user_mode_prepare task_work_run __cleanup_mnt cleanup_mnt     deactivate_super deactivate_locked_super kill_block_super generic_shutdown_super shrink_dcache_for_umount     dentry = sb->s_root sb->s_root = NULL <--- Here set NULL sync_filesystem __sync_filesystem     sb->s_op->sync_fs > ext4_sync_fs dquot_writeback_dquots sb->dq_op->write_info > ext4_write_info     ext4_journal_start(d_inode(sb->s_root), EXT4_HT_QUOTA, 2) d_inode(sb->s_root) s_root->d_inode <--- Null     pointer dereference To solve this problem, we use ext4_journal_start_sb directly to avoid s_root being     used. (CVE-2022-50344)

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

The version of kernel installed on the remote host is prior to 5.4.224-128.414. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2022-039 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 use-after-free flaw was found in the Linux kernel's Unix socket Garbage Collection and io_uring. This     flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-2602)

    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. Affected by this vulnerability is the     function mvpp2_dbgfs_port_init of the file drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c of the     component mvpp2. The manipulation leads to memory leak. It is recommended to apply a patch to fix this     issue. The identifier VDB-211033 was assigned to this vulnerability. (CVE-2022-3535)

    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, which was classified as critical, has been found in Linux Kernel. Affected by this issue     is the function del_timer of the file drivers/isdn/mISDN/l1oip_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 identifier     of this vulnerability is VDB-211088. (CVE-2022-3565)

    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)

    A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is the function     nilfs_new_inode of the file fs/nilfs2/inode.c of the component BPF. The manipulation leads to use after     free. It is possible to launch the attack remotely. It is recommended to apply a patch to fix this issue.
    The identifier of this vulnerability is VDB-211992. (CVE-2022-3649)

    drivers/video/fbdev/smscufx.c in the Linux kernel through 5.19.12 has a race condition and resultant use-     after-free if a physically proximate attacker removes a USB device while calling open(), aka a race     condition between ufx_ops_open and ufx_usb_disconnect. (CVE-2022-41849)

    roccat_report_event in drivers/hid/hid-roccat.c in the Linux kernel through 5.19.12 has a race condition     and resultant use-after-free in certain situations where a report is received while copying a     report->value is in progress. (CVE-2022-41850)

    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:

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

    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:

    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:

    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:

    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)

    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)

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 5.10.155-138.670. 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)

    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)

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 4.14.296-222.539. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2022-1876 advisory.

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

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

    A flaw use after free in the Linux kernel NILFS file system was found in the way user triggers function     security_inode_alloc to fail with following call to function nilfs_mdt_destroy. A local user could use     this flaw to crash the system or potentially escalate their privileges on the system. (CVE-2022-2978)

    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, which was classified as critical, has been found in Linux Kernel. Affected by this issue     is the function del_timer of the file drivers/isdn/mISDN/l1oip_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 identifier     of this vulnerability is VDB-211088. (CVE-2022-3565)

    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)

    A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is the function     nilfs_bmap_lookup_at_level of the file fs/nilfs2/inode.c of the component nilfs2. The manipulation leads     to null pointer dereference. It is possible to launch the attack remotely. It is recommended to apply a     patch to fix this issue. The identifier of this vulnerability is VDB-211920. (CVE-2022-3621)

    A vulnerability, which was classified as problematic, has been found in Linux Kernel. This issue affects     the function nilfs_attach_log_writer of the file fs/nilfs2/segment.c of the component BPF. The     manipulation leads to memory leak. The attack may be initiated remotely. It is recommended to apply a     patch to fix this issue. The identifier VDB-211961 was assigned to this vulnerability. (CVE-2022-3646)

    A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is the function     nilfs_new_inode of the file fs/nilfs2/inode.c of the component BPF. The manipulation leads to use after     free. It is possible to launch the attack remotely. It is recommended to apply a patch to fix this issue.
    The identifier of this vulnerability is VDB-211992. (CVE-2022-3649)

    An issue was discovered in the Linux kernel before 5.19. In pxa3xx_gcu_write in     drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of size_t versus int, causing an     integer overflow and bypassing the size check. After that, because it is used as the third argument to     copy_from_user(), a heap overflow may occur. (CVE-2022-39842)

    drivers/scsi/stex.c in the Linux kernel through 5.19.9 allows local users to obtain sensitive information     from kernel memory because stex_queuecommand_lck lacks a memset for the PASSTHRU_CMD case.
    (CVE-2022-40768)

    drivers/video/fbdev/smscufx.c in the Linux kernel through 5.19.12 has a race condition and resultant use-     after-free if a physically proximate attacker removes a USB device while calling open(), aka a race     condition between ufx_ops_open and ufx_usb_disconnect. (CVE-2022-41849)

    roccat_report_event in drivers/hid/hid-roccat.c in the Linux kernel through 5.19.12 has a race condition     and resultant use-after-free in certain situations where a report is received while copying a     report->value is in progress. (CVE-2022-41850)

    drivers/usb/mon/mon_bin.c in usbmon in the Linux kernel before 5.19.15 and 6.x before 6.0.1 allows a user-     space client to corrupt the monitor's internal memory. (CVE-2022-43750)

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

    netfilter: ebtables: fix memory leak when blob is malformed (CVE-2022-48641)

    In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused     by unset skb->mac_header If an AF_PACKET socket is used to send packets through ipvlan and the default     xmit function of the AF_PACKET socket is changed from dev_queue_xmit() to packet_direct_xmit() via     setsockopt() with the option name of PACKET_QDISC_BYPASS, the skb->mac_header may not be reset and remains     as the initial value of 65535, this may trigger slab-out-of-bounds bugs as following: (CVE-2022-48651)

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

    mm/slub: fix to return errno if kmalloc() fails (CVE-2022-48659)

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

    of: fdt: fix off-by-one error in unflatten_dt_nodes() (CVE-2022-48672)

    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:

    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:

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

    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:

    fs: fix UAF/GPF bug in nilfs_mdt_destroy (CVE-2022-50367)

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

    Bluetooth: L2CAP: Fix user-after-free (CVE-2022-50386)

    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:

    Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times (CVE-2022-50419)

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

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

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.

An update of the linux package has been released.

ID	Name	Product	Family	Severity
266163	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2025-090 (ALASKERNEL-5.15-2025-090)	Nessus	Amazon Linux Local Security Checks	medium
265289	Linux Distros Unpatched Vulnerability : CVE-2022-50344	Nessus	Misc.	medium
168727	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2022-039 (ALASKERNEL-5.4-2022-039)	Nessus	Amazon Linux Local Security Checks	high
168520	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2022-023 (ALASKERNEL-5.10-2022-023)	Nessus	Amazon Linux Local Security Checks	high
168366	Amazon Linux 2 : kernel, --advisory ALAS2-2022-1876 (ALAS-2022-1876)	Nessus	Amazon Linux Local Security Checks	high
153035	Photon OS 4.0: Linux PHSA-2021-4.0-0095	Nessus	PhotonOS Local Security Checks	high

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