In the Linux kernel, the following vulnerability has been resolved: xfs: resample the data fork mapping after cycling ILOCK xfs_reflink_fill_{cow_hole,delalloc} are both presented with an inode, a data fork mapping, and a cow fork mapping. Unfortunately, these two helpers cycle the ILOCK to grab a transaction, which means that the mappings are stale as soon as we reacquire the ILOCK. Currently we refresh the cow fork mapping by re-calling xfs_find_trim_cow_extent, but we don't refresh the data fork mapping beforehand, which means that the xfs_bmap_trim_cow in that function queries the refcount btree about the wrong physical blocks and returns an inaccurate value in *shared. If *shared is now false, the directio write proceeds with a stale data fork mapping. Fix this by querying the data fork mapping if the sequence counter changes across the ILOCK cycle.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:41063 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: rtmutex: Use waiter::task instead of current in remove_waiter() (CVE-2026-43499)

    * kernel: futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock     (CVE-2026-53166)

    * kernel: XFS data corruption using reflink ()

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:41229 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected GFN (CVE-2026-46113)

    * kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected role (CVE-2026-53359)

    * kernel: XFS data corruption using reflink ()

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:41062 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: rtmutex: Use waiter::task instead of current in remove_waiter() (CVE-2026-43499)

    * kernel: futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock     (CVE-2026-53166)

    * kernel: XFS data corruption using reflink ()

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-39494 advisory.

    - crypto: ccp - copy IV using skcipher ivsize (CKI Backport Bot) [RHEL-188463] {CVE-2026-53016}
    - futex/requeue: Revert 'Prevent NULL pointer dereference in remove_waiter() on self-deadlock'' (CKI     Backport Bot) [RHEL-193250] {CVE-2026-53166}
    - futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock (CKI Backport Bot)     [RHEL-193250] {CVE-2026-43499}
    - locking/rtmutex: Skip remove_waiter() when waiter is not enqueued (CKI Backport Bot) [RHEL-193153]     {CVE-2026-43499}
    - rtmutex: Use waiter::task instead of current in remove_waiter() (CKI Backport Bot) [RHEL-193153]     {CVE-2026-43499}
    - md/bitmap: fix GPF in write_page caused by resize race (Nigel Croxon) [RHEL-174092] {CVE-2026-43163}
    - KVM: x86: Fix shadow paging use-after-free due to unexpected role (Paolo Bonzini) [RHEL-192407]     {CVE-2026-53359}
    - KVM: x86: Fix shadow paging use-after-free due to unexpected GFN (CKI Backport Bot) [RHEL-186698]     {CVE-2026-46113}
    - net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change (CKI Backport     Bot) [RHEL-183007] {CVE-2025-71066}
    - sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL (CKI Backport Bot)     [RHEL-179854] {CVE-2026-46227}
    - eventpoll: Fix semi-unbounded recursion (Ian Kent) [RHEL-180776] {CVE-2025-38614}
    - eventpoll: fix ep_remove struct eventpoll / struct file UAF (Ian Kent) [RHEL-180776] {CVE-2026-46242}
    - eventpoll: defer struct eventpoll free to RCU grace period (Ian Kent) [RHEL-173832] {CVE-2026-43074}
    - smb/client: fix out-of-bounds read in smb2_compound_op() (Paulo Alcantara) [RHEL-180048]     {CVE-2026-46155}
    - procfs: fix missing RCU protection when reading real_parent in do_task_stat() (CKI Backport Bot)     [RHEL-181902] {CVE-2026-46259}
    - net/ipv6: ioam6: prevent schema length wraparound in trace fill (Antoine Tenart) [RHEL-174786]     {CVE-2026-43341}
    - net/mana: Null service_wq on setup error to prevent double destroy (CKI Backport Bot) [RHEL-180277]     {CVE-2026-43276}
    - net: mana: Fix double destroy_workqueue on service rescan PCI path (CKI Backport Bot) [RHEL-180277]     {CVE-2026-43276}
    - fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath (CKI Backport Bot) [RHEL-189491]     {CVE-2026-43112}
    - Enable workaround for ARM64 ERRATUM 4118414 (Mark Salter) [RHEL-183592] {CVE-2025-10263}
    - arm64: errata: Mitigate TLBI errata on Microsoft Azure Cobalt 100 CPU (Mark Salter) [RHEL-183592]     {CVE-2025-10263}
    - arm64: errata: Mitigate TLBI errata on NVIDIA Olympus CPU (Mark Salter) [RHEL-183592] {CVE-2025-10263}
    - arm64: errata: Mitigate TLBI errata on various Arm CPUs (Mark Salter) [RHEL-183592] {CVE-2025-10263}
    - arm64: cputype: Add C1-Ultra definitions (Mark Salter) [RHEL-183592] {CVE-2025-10263}
    - arm64: cputype: Add C1-Premium definitions (Mark Salter) [RHEL-183592] {CVE-2025-10263}
    - arm64: cputype: Add C1-Pro definitions (Mark Salter) [RHEL-183592] {CVE-2025-10263}
    - KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry (CKI Backport Bot)     [RHEL-183965] {CVE-2026-46316}
    - netfilter: nft_inner: Fix IPv6 inner_thoff desync (CKI Backport Bot) [RHEL-181936] {CVE-2026-46244}
    - drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs() (CKI Backport Bot)     [RHEL-179912] {CVE-2026-46209}
    - rxrpc: Fix rxrpc_input_call_event() to only unshare DATA packets (CKI Backport Bot) [RHEL-179566]     {CVE-2026-45998}
    - rxrpc: Fix potential UAF after skb_unshare() failure (CKI Backport Bot) [RHEL-179566] {CVE-2026-45998}
    - RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() (CKI Backport Bot) [RHEL-180001]     {CVE-2026-46176}
    - crypto: tegra - Add missing CRYPTO_ALG_ASYNC (Vladislav Dronov) [RHEL-182759] {CVE-2026-31739}
    - RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path (CKI Backport Bot) [RHEL-179965]     {CVE-2026-46189}
    - ALSA: aloop: Fix peer runtime UAF during format-change stop (CKI Backport Bot) [RHEL-179317]     {CVE-2026-46090}
    - ALSA: usb-audio: Add sanity check for OOB writes at silencing (CKI Backport Bot) [RHEL-173937]     {CVE-2026-43279}
    - tcp: fix potential race in tcp_v6_syn_recv_sock() (Paolo Abeni) [RHEL-174242] {CVE-2026-43198}
    - scsi: qla2xxx: Completely fix fcport double free (Ewan D. Milne) [RHEL-179755] {CVE-2026-43414}
    - RDMA/mana: Remove user triggerable WARN_ON() in mana_ib_create_qp_rss() (CKI Backport Bot) [RHEL-180155]     {CVE-2026-46117}
    - RDMA/iwcm: Fix workqueue list corruption by removing work_list (CKI Backport Bot) [RHEL-179665]     {CVE-2026-45898}
    - rxrpc: fix RESPONSE authenticator parser OOB read (CKI Backport Bot) [RHEL-171456] {CVE-2026-31636}
    - nvmet-tcp: fix race between ICReq handling and queue teardown (CKI Backport Bot) [RHEL-180106]     {CVE-2026-46135}
    - RDMA/mana: Validate rx_hash_key_len (CKI Backport Bot) [RHEL-180090] {CVE-2026-46145}
    - ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach() (Guillaume Nault) [RHEL-172675]     {CVE-2026-43038}
    - net/sched: fix pedit partial COW leading to page cache corruption (Ivan Vecera) [RHEL-177380]     {CVE-2026-46331}
    - exit: prevent preemption of oopsing TASK_DEAD task (CKI Backport Bot) [RHEL-180009] {CVE-2026-46173}
    - crypto: caam - fix overflow on long hmac keys (CKI Backport Bot) [RHEL-179769] {CVE-2026-43330}

Tenable has extracted the preceding description block directly from the Oracle Linux 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 Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:40425 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux     operating system.

    Security Fix(es):

    * kernel: rtmutex: Use waiter::task instead of current in remove_waiter() (CVE-2026-43499)

    * kernel: futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock     (CVE-2026-53166)

    * kernel: xfs: resample the data fork mapping after cycling ILOCK

    For more details about the security issue(s), including the impact, a CVSS     score, acknowledgments, and other related information, refer to the CVE     page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:39984 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: rtmutex: Use waiter::task instead of current in remove_waiter() (CVE-2026-43499)

    * kernel: futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock     (CVE-2026-53166)

    * kernel: XFS data corruption using reflink ()

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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
328022	RHEL 9 : kernel (RHSA-2026:41063)	Nessus	Red Hat Local Security Checks	high
327678	RHEL 8 : kernel (RHSA-2026:41229)	Nessus	Red Hat Local Security Checks	high
327502	RHEL 10 : kernel (RHSA-2026:41062)	Nessus	Red Hat Local Security Checks	high
327495	Oracle Linux 10 : kernel (ELSA-2026-39494)	Nessus	Oracle Linux Local Security Checks	high
327254	RHEL 9 : kernel update (Important) (RHSA-2026:40425)	Nessus	Red Hat Local Security Checks	high
327101	RHEL 8 : kernel (RHSA-2026:39984)	Nessus	Red Hat Local Security Checks	high

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