In the Linux kernel, the following vulnerability has been resolved: ext4: fix deadlock due to mbcache entry corruption When manipulating xattr blocks, we can deadlock infinitely looping inside ext4_xattr_block_set() where we constantly keep finding xattr block for reuse in mbcache but we are unable to reuse it because its reference count is too big. This happens because cache entry for the xattr block is marked as reusable (e_reusable set) although its reference count is too big. When this inconsistency happens, this inconsistent state is kept indefinitely and so ext4_xattr_block_set() keeps retrying indefinitely. The inconsistent state is caused by non-atomic update of e_reusable bit. e_reusable is part of a bitfield and e_reusable update can race with update of e_referenced bit in the same bitfield resulting in loss of one of the updates. Fix the problem by using atomic bitops instead. This bug has been around for many years, but it became *much* easier to hit after commit 65f8b80053a1 ("ext4: fix race when reusing xattr blocks").

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0317-1 advisory.

    The SUSE Linux Enterprise 15 SP5 kernel was updated to fix various security issues

    The following security issues were fixed:

    - CVE-2022-50630: mm: hugetlb: fix UAF in hugetlb_handle_userfault (bsc#1254785).
    - CVE-2022-50700: wifi: ath10k: Delay the unmapping of the buffer (bsc#1255576).
    - CVE-2023-53254: cacheinfo: Fix shared_cpu_map to handle shared caches at different levels (bsc#1249871).
    - CVE-2023-53781: smc: Fix use-after-free in tcp_write_timer_handler() (bsc#1254751).
    - CVE-2024-56590: Bluetooth: hci_core: Fix not checking skb length on hci_acldata_packet (bsc#1235038).
    - CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
    - CVE-2025-40019: crypto: essiv - Check ssize for decryption and in-place encryption (bsc#1252678).
    - CVE-2025-40139: smc: Use __sk_dst_get() and dst_dev_rcu() in in smc_clc_prfx_set() (bsc#1253409).
    - CVE-2025-40215: kABI: xfrm: delete x->tunnel as we delete x (bsc#1254959).
    - CVE-2025-40220: fuse: fix livelock in synchronous file put from fuseblk workers (bsc#1254520).
    - CVE-2025-40233: ocfs2: clear extent cache after moving/defragmenting extents (bsc#1254813).
    - CVE-2025-40258: mptcp: fix race condition in mptcp_schedule_work() (bsc#1254843).
    - CVE-2025-40277: drm/vmwgfx: Validate command header size against (bsc#1254894).
    - CVE-2025-40280: tipc: Fix use-after-free in tipc_mon_reinit_self() (bsc#1254847).
    - CVE-2025-40331: sctp: Prevent TOCTOU out-of-bounds write (bsc#1254615).
    - CVE-2025-68732: gpu: host1x: Fix race in syncpt alloc/free (bsc#1255688).

    The following non security issues were fixed:

    - ACPI/IORT: Fix memory leak in iort_rmr_alloc_sids() (git-fixes).
    - ACPI: PRM: Remove unnecessary strict handler address checks (git-fixes).
    - ACPI: property: Do not pass NULL handles to acpi_attach_data() (git-fixes).
    - ACPI: property: Fix buffer properties extraction for subnodes (git-fixes).
    - KVM: SVM: Fix TSC_AUX virtualization setup (git-fixes).
    - RDMA/cm: Rate limit destroy CM ID timeout error message (git-fixes).
    - RDMA/counter: Check CAP_NET_RAW check in user namespace for RDMA counters (git-fixes).
    - RDMA/hns: Fix the modification of max_send_sge (git-fixes).
    - RDMA/mlx5: Check CAP_NET_RAW in user namespace for anchor create (git-fixes).
    - RDMA/mlx5: Check CAP_NET_RAW in user namespace for devx create (git-fixes).
    - RDMA/mlx5: Check CAP_NET_RAW in user namespace for flow create (git-fixes).
    - RDMA/mlx5: Fix compilation warning when USER_ACCESS isn't set (git-fixes).
    - RDMA/nldev: Check CAP_NET_RAW in user namespace for QP modify (git-fixes).
    - RDMA/uverbs: Add empty rdma_uattrs_has_raw_cap() declaration (git-fixes).
    - RDMA/uverbs: Check CAP_NET_RAW in user namespace for QP create (git-fixes).
    - RDMA/uverbs: Check CAP_NET_RAW in user namespace for RAW QP create (git-fixes).
    - RDMA/uverbs: Check CAP_NET_RAW in user namespace for flow create (git-fixes).
    - arch/idle: Change arch_cpu_idle() behavior: always exit with IRQs disabled (git-fixes).
    - cpuidle/poll: Ensure IRQs stay disabled after cpuidle_state::enter() calls (git-fixes).
    - cpuidle: Move IRQ state validation (git-fixes).
    - cpuidle: haltpoll: Do not enable interrupts when entering idle (git-fixes).
    - dm: free table mempools if not used in __bind (git-fixes).
    - padata: Honor the caller's alignment in case of chunk_size 0 (bsc#1237563).
    - platform/x86/intel-uncore-freq: Fail module load when plat_info is NULL (git-fixes).
    - x86/bugs: Fix RSB clearing in indirect_branch_prediction_barrier() (git-fixes).
    - x86/bugs: Use SBPB in write_ibpb() if applicable (git-fixes).
    - x86/paravirt: Move halt paravirt calls under CONFIG_PARAVIRT (git-fixes).
    - x86/tdx: Drop flags from __tdx_hypercall() (git-fixes).
    - x86/tdx: Dynamically disable SEPT violations from causing #VEs (git-fixes).
    - x86/tdx: Emit warning if IRQs are enabled during HLT #VE handling (git-fixes).
    - x86/tdx: Extend TDX_MODULE_CALL to support more TDCALL/SEAMCALL leafs (git-fixes).
    - x86/tdx: Fix __noreturn build warning around __tdx_hypercall_failed() (git-fixes).
    - x86/tdx: Fix arch_safe_halt() execution for TDX VMs (git-fixes).
    - x86/tdx: Introduce wrappers to read and write TD metadata (git-fixes).
    - x86/tdx: Make TDX_HYPERCALL asm similar to TDX_MODULE_CALL (git-fixes).
    - x86/tdx: Make macros of TDCALLs consistent with the spec (git-fixes).
    - x86/tdx: Pass TDCALL/SEAMCALL input/output registers via a structure (git-fixes).
    - x86/tdx: Reimplement __tdx_hypercall() using TDX_MODULE_CALL asm (git-fixes).
    - x86/tdx: Remove 'struct tdx_hypercall_args' (git-fixes).
    - x86/tdx: Remove TDX_HCALL_ISSUE_STI (git-fixes).
    - x86/tdx: Rename __tdx_module_call() to __tdcall() (git-fixes).
    - x86/tdx: Rename tdx_parse_tdinfo() to tdx_setup() (git-fixes).
    - x86/tdx: Retry partially-completed page conversion hypercalls (git-fixes).
    - x86/tdx: Skip saving output regs when SEAMCALL fails with VMFailInvalid (git-fixes).
    - x86/tdx: Zero out the missing RSI in TDX_HYPERCALL macro (git-fixes).
    - x86/virt/tdx: Make TDX_MODULE_CALL handle SEAMCALL #UD and #GP (git-fixes).
    - x86/virt/tdx: Wire up basic SEAMCALL functions (git-fixes).
    - xfs: fix sparse inode limits on runt AG (bsc#1254392).

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 remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0316-1 advisory.

    The SUSE Linux Enterprise 12 SP5 kernel was updated to fix various security issues

    The following security issues were fixed:

    - CVE-2022-49604,CVE-2025-40074: ip: Fix data-races around sysctl_ip_fwd_use_pmtu (bsc#1238414     bsc#1252794).
    - CVE-2022-50527: drm/amdgpu: Fix size validation for non-exclusive domains (v4) (bsc#1251738).
    - CVE-2022-50625: serial: amba-pl011: avoid SBSA UART accessing DMACR register (bsc#1254559).
    - CVE-2022-50630: mm: hugetlb: fix UAF in hugetlb_handle_userfault (bsc#1254785).
    - CVE-2022-50656: nfc: pn533: Clear nfc_target before being used (bsc#1254745).
    - CVE-2022-50678: wifi: brcmfmac: fix invalid address access when enabling SCAN log level (bsc#1254902).
    - CVE-2022-50700: wifi: ath10k: Delay the unmapping of the buffer (bsc#1255576).
    - CVE-2023-53454: HID: multitouch: Correct devm device reference for hidinput input_dev name     (bsc#1250759).
    - CVE-2023-53718: ring-buffer: Do not swap cpu_buffer during resize process (bsc#1252564).
    - CVE-2023-53748: media: mediatek: vcodec: Fix potential array out-of-bounds in decoder queue_setup     (bsc#1254907).
    - CVE-2023-53765: dm cache: free background tracker's queued work in btracker_destroy (bsc#1254912).
    - CVE-2023-53781: smc: Fix use-after-free in tcp_write_timer_handler() (bsc#1254751).
    - CVE-2023-53788: ALSA: hda/ca0132: fixup buffer overrun at tuning_ctl_set() (bsc#1254917).
    - CVE-2023-53819: amdgpu: validate offset_in_bo of drm_amdgpu_gem_va (bsc#1254712).
    - CVE-2023-53850: iavf: use internal state to free traffic IRQs (bsc#1254677).
    - CVE-2023-54120: Bluetooth: Fix race condition in hidp_session_thread (bsc#1256133).
    - CVE-2023-54214: Bluetooth: L2CAP: Fix potential user-after-free (bsc#1255954).
    - CVE-2023-54236: net/net_failover: fix txq exceeding warning (bsc#1255922).
    - CVE-2023-54286: wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace (bsc#1255803).
    - CVE-2023-54300: wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx (bsc#1255790).
    - CVE-2025-38085: mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race (bsc#1245431 bsc#1245499).
    - CVE-2025-38336: ata: pata_via: Force PIO for ATAPI devices on VT6415/VT6330 (bsc#1246370).
    - CVE-2025-38728: smb3: fix for slab out of bounds on mount to ksmbd (bsc#1249256).
    - CVE-2025-40006: mm/hugetlb: fix folio is still mapped when deleted (bsc#1252342).
    - CVE-2025-40035: Input: uinput - zero-initialize uinput_ff_upload_compat to avoid info leak     (bsc#1252866).
    - CVE-2025-40053: net: dlink: handle copy_thresh allocation failure (bsc#1252808).
    - CVE-2025-40064: smc: Fix use-after-free in __pnet_find_base_ndev() (bsc#1252845).
    - CVE-2025-40075: tcp_metrics: use dst_dev_net_rcu() (bsc#1252795).
    - CVE-2025-40081: perf: arm_spe: Prevent overflow in PERF_IDX2OFF() (bsc#1252776).
    - CVE-2025-40110: drm/vmwgfx: Fix a null-ptr access in the cursor snooper (bsc#1253275).
    - CVE-2025-40123: bpf: Enforce expected_attach_type for tailcall compatibility (bsc#1253365).
    - CVE-2025-40135: ipv6: use RCU in ip6_xmit() (bsc#1253342).
    - CVE-2025-40139: smc: Use __sk_dst_get() and dst_dev_rcu() in in smc_clc_prfx_set() (bsc#1253409).
    - CVE-2025-40149: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock() (bsc#1253355).
    - CVE-2025-40153: mm: hugetlb: avoid soft lockup when mprotect to large memory area (bsc#1253408).
    - CVE-2025-40158: ipv6: use RCU in ip6_output() (bsc#1253402).
    - CVE-2025-40160: xen/events: Cleanup find_virq() return codes (bsc#1253400).
    - CVE-2025-40164: usbnet: Fix using smp_processor_id() in preemptible code warnings (bsc#1253407).
    - CVE-2025-40167: ext4: detect invalid INLINE_DATA + EXTENTS flag combination (bsc#1253458).
    - CVE-2025-40168: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match() (bsc#1253427).
    - CVE-2025-40170: net: use dst_dev_rcu() in sk_setup_caps() (bsc#1253413).
    - CVE-2025-40178: pid: Add a judgment for ns null in pid_nr_ns (bsc#1253463).
    - CVE-2025-40198: ext4: avoid potential buffer over-read in parse_apply_sb_mount_options() (bsc#1253453).
    - CVE-2025-40200: Squashfs: reject negative file sizes in squashfs_read_inode() (bsc#1253448).
    - CVE-2025-40215: kABI: xfrm: delete x->tunnel as we delete x (bsc#1254959).
    - CVE-2025-40219: PCI/IOV: Add PCI rescan-remove locking when enabling/disabling SR-IOV (bsc#1254518).
    - CVE-2025-40233: ocfs2: clear extent cache after moving/defragmenting extents (bsc#1254813).
    - CVE-2025-40240: sctp: avoid NULL dereference when chunk data buffer is missing (bsc#1254869).
    - CVE-2025-40244: hfsplus: fix KMSAN uninit-value issue in __hfsplus_ext_cache_extent() (bsc#1255033).
    - CVE-2025-40248: vsock: Ignore signal/timeout on connect() if already established (bsc#1254864).
    - CVE-2025-40252: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end()     (bsc#1254849).
    - CVE-2025-40269: ALSA: usb-audio: Fix potential overflow of PCM transfer buffer (bsc#1255035).
    - CVE-2025-40275: ALSA: usb-audio: Fix NULL pointer dereference in snd_usb_mixer_controls_badd     (bsc#1254829).
    - CVE-2025-40278: net: sched: act_ife: initialize struct tc_ife to fix KMSAN kernel-infoleak     (bsc#1254825).
    - CVE-2025-40279: net: sched: act_connmark: initialize struct tc_ife to fix kernel leak (bsc#1254846).
    - CVE-2025-40283: Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF (bsc#1254858).
    - CVE-2025-40304: fbdev: Add bounds checking in bit_putcs to fix vmalloc-out-of-bounds (bsc#1255034).
    - CVE-2025-40308: Bluetooth: bcsp: receive data only if registered (bsc#1255064).
    - CVE-2025-40321: wifi: brcmfmac: fix crash while sending Action Frames in standalone AP Mode     (bsc#1254795).
    - CVE-2025-40322: fbdev: bitblit: bound-check glyph index in bit_putcs* (bsc#1255092).
    - CVE-2025-40331: sctp: Prevent TOCTOU out-of-bounds write (bsc#1254615).
    - CVE-2025-40337: net: stmmac: Correctly handle Rx checksum offload errors (bsc#1255081).
    - CVE-2025-40349: hfs: validate record offset in hfsplus_bmap_alloc (bsc#1255280).
    - CVE-2025-40351: hfsplus: fix KMSAN uninit-value issue in hfsplus_delete_cat() (bsc#1255281).
    - CVE-2025-68206: netfilter: nft_ct: add seqadj extension for natted connections (bsc#1255142).
    - CVE-2025-68340: team: Move team device type change at the end of team_port_add (bsc#1255507).

    The following non security issues were fixed:

    - HID: multitouch: Add NULL check in mt_input_configured (bsc#1250759).
    - Squashfs: add additional inode sanity checking (bsc#1253448).
    - drm/amdgpu: Fix potential NULL dereference (bsc#1251238).

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.

  - ext4: fix deadlock due to mbcache entry corruption When manipulating xattr blocks, we can deadlock     infinitely looping inside ext4_xattr_block_set() where we constantly keep finding xattr block for reuse in     mbcache but we are unable to reuse it because its reference count is too big. This happens because cache     entry for the xattr block is marked as reusable (e_reusable set) although its reference count is too big.
    When this inconsistency happens, this inconsistent state is kept indefinitely and so     ext4_xattr_block_set() keeps retrying indefinitely. The inconsistent state is caused by non-atomic update     of e_reusable bit. e_reusable is part of a bitfield and e_reusable update can race with update of     e_referenced bit in the same bitfield resulting in loss of one of the updates. Fix the problem by using     atomic bitops instead. This bug has been around for many years, but it became *much* easier to hit after     commit 65f8b80053a1 (ext4: fix race when reusing xattr blocks). (CVE-2022-50668)

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 5.15.90-54.138. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2023-013 advisory.

    In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows     an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control     configuration that is set up with tc qdisc and tc class commands. This affects qdisc_graft in     net/sched/sch_api.c. (CVE-2022-47929)

    A flaw NULL Pointer Dereference in the Linux kernel NTFS3 driver function attr_punch_hole() was found. A     local user could use this flaw to crash the system. (CVE-2022-4842)

    In the Linux kernel before 6.1.3, fs/ntfs3/inode.c does not validate the attribute name offset. An     unhandled page fault may occur. (CVE-2022-48424)

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

    efi: fix NULL-deref in init error path (CVE-2022-48879)

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

    sched/core: Fix use-after-free bug in dup_user_cpus_ptr() (CVE-2022-48892)

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

    fs/ntfs3: Validate BOOT record_size (CVE-2022-50262)

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

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

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

    ext4: fix delayed allocation bug in ext4_clu_mapped for bigalloc + inline (CVE-2022-50286)

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

    btrfs: fix extent map use-after-free when handling missing device in read_one_chunk (CVE-2022-50300)

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

    ext4: fix potential out of bound read in ext4_fc_replay_scan() (CVE-2022-50306)

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

    block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq (CVE-2022-50329)

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

    fs/ntfs3: Add null pointer check to attr_load_runs_vcn (CVE-2022-50336)

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

    cifs: fix oops during encryption (CVE-2022-50341)

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

    ext4: init quota for 'old.inode' in 'ext4_rename' (CVE-2022-50346)

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

    md: fix a crash in mempool_free (CVE-2022-50381)

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

    nvme: fix multipath crash caused by flush request when blktrace is enabled (CVE-2022-50388)

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

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

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

    net: sched: fix memory leak in tcindex_set_parms (CVE-2022-50396)

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

    ext4: fix off-by-one errors in fast-commit block filling (CVE-2022-50428)

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

    ext4: don't set up encryption key during jbd2 transaction (CVE-2022-50436)

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

    fs/ntfs3: Validate buffer length while parsing index (CVE-2022-50442)

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

    fs/ntfs3: Fix memory leak on ntfs_fill_super() error path (CVE-2022-50451)

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

    btrfs: fix resolving backrefs for inline extent followed by prealloc (CVE-2022-50456)

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

    ext4: fix leaking uninitialized memory in fast-commit journal (CVE-2022-50465)

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

    cpufreq: Init completion before kobject_init_and_add() (CVE-2022-50473)

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

    ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode (CVE-2022-50485)

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

    dm cache: Fix UAF in destroy() (CVE-2022-50496)

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

    fs/ntfs3: Validate data run offset (CVE-2022-50507)

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

    dm thin: Use last transaction's pmd->root when commit failed (CVE-2022-50534)

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

    ext4: fix uninititialized value in 'ext4_evict_inode' (CVE-2022-50546)

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

    dm thin: Fix ABBA deadlock between shrink_slab and dm_pool_abort_metadata (CVE-2022-50549)

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

    tpm: acpi: Call acpi_put_table() to fix memory leak (CVE-2022-50562)

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

    dm thin: Fix UAF in run_timer_softirq() (CVE-2022-50563)

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

    PCI: Fix pci_device_is_present() for VFs by checking PF (CVE-2022-50636)

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

    ext4: fix bug_on in __es_tree_search caused by bad boot loader inode (CVE-2022-50638)

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

    ext4: fix deadlock due to mbcache entry corruption (CVE-2022-50668)

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

    ext4: fix use-after-free in ext4_orphan_cleanup (CVE-2022-50673)

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

    io_uring/rw: defer fsnotify calls to task context (CVE-2022-50705)

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

    ext4: silence the warning when evicting inode with dioread_nolock (CVE-2022-50730)

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

    fs/ntfs3: Validate index root when initialize NTFS security (CVE-2022-50737)

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

    fs/ntfs3: Add null pointer check for inode operations (CVE-2022-50739)

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

    nvme-pci: fix mempool alloc size (CVE-2022-50756)

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

    ext4: fix bug_on in __es_tree_search caused by bad quota inode (CVE-2022-50782)

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

    mptcp: use proper req destructor for IPv6 (CVE-2022-50783)

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

    SUNRPC: Don't leak netobj memory when gss_read_proxy_verf() fails (CVE-2022-50821)

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

    tpm: tpm_tis: Add the missed acpi_put_table() to fix memory leak (CVE-2022-50824)

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

    fs/ntfs3: Add overflow check for attribute size (CVE-2022-50841)

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

    ext4: fix inode leak in ext4_xattr_inode_create() on an error path (CVE-2022-50845)

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

    fs/ntfs3: Fix slab-out-of-bounds in r_page (CVE-2022-50869)

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

    objtool: Fix SEGFAULT (CVE-2022-50879)

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

    dm integrity: Fix UAF in dm_integrity_dtr() (CVE-2022-50889)

    The Linux kernel does not correctly mitigate SMT attacks, as discovered through a strange pattern in the     kernel API using STIBP as a mitigation, leaving the process exposed for a short period of time after a     syscall. The kernel also does not issue an IBPB immediately during the syscall. (CVE-2023-0045)

    A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel. This issue could     allow the leakage of both stack and heap addresses, and potentially allow Local Privilege Escalation to     the root user via arbitrary code execution. (CVE-2023-0179)

    A NULL pointer dereference flaw was found in rawv6_push_pending_frames in net/ipv6/raw.c in the network     subcomponent in the Linux kernel. This flaw causes the system to crash. (CVE-2023-0394)

    Detected a few exploitable gadgets that could leak secret memory through a side-channel such as MDS as     well as insufficient hardening of the usercopy functions against spectre-v1. (CVE-2023-0459)

    There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local     privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS or     CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege.

    There is a use-after-free bug of icsk_ulp_data of a struct inet_connection_sock.

    When CONFIG_TLS is enabled, user can install a tls context (struct tls_context) on a connected tcp socket.
    The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is     created from the listener, the context is inherited and vulnerable.

    The setsockopt TCP_ULP operation does not require any privilege.

    We recommend upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c (CVE-2023-0461)

    cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial     of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes     indicate a TC_ACT_SHOT condition rather than valid classification results). (CVE-2023-23454)

    atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel through 6.1.4 allows attackers to cause a denial     of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition     rather than valid classification results). (CVE-2023-23455)

    In the Linux kernel 6.0.8, there is a use-after-free in run_unpack in fs/ntfs3/run.c, related to a     difference between NTFS sector size and media sector size. (CVE-2023-26544)

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

    btrfs: fix race between quota rescan and disable leading to NULL pointer deref (CVE-2023-52896)

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

    xhci: Fix null pointer dereference when host dies (CVE-2023-52898)

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

    usb: xhci: Check endpoint is valid before dereferencing it (CVE-2023-52901)

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

    io_uring: lock overflowing for IOPOLL (CVE-2023-52903)

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

    net/sched: act_mpls: Fix warning during failed attribute validation (CVE-2023-52906)

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

    iommu/iova: Fix alloc iova overflows issue (CVE-2023-52910)

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

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

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

    netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits (CVE-2023-53033)

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

    fs/ntfs3: don't hold ni_lock when calling truncate_setsize() (CVE-2023-53163)

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

    netfilter: ipset: Rework long task execution when adding/deleting entries (CVE-2023-53549)

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

    x86/kexec: Fix double-free of elf header buffer (CVE-2023-54146)

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	Severity
297191	SUSE SLES15 Security Update : kernel (SUSE-SU-2026:0317-1)	Nessus	SuSE Local Security Checks	high
297090	SUSE SLES12 Security Update : kernel (SUSE-SU-2026:0316-1)	Nessus	SuSE Local Security Checks	high
278005	Linux Distros Unpatched Vulnerability : CVE-2022-50668	Nessus	Misc.	medium
171848	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2023-042 (ALASKERNEL-5.4-2023-042)	Nessus	Amazon Linux Local Security Checks	high
171227	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2023-013 (ALASKERNEL-5.15-2023-013)	Nessus	Amazon Linux Local Security Checks	high
171216	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2023-026 (ALASKERNEL-5.10-2023-026)	Nessus	Amazon Linux Local Security Checks	high

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CVE-2022-50668

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