In the Linux kernel, the following vulnerability has been resolved: crypto: caam - fix overflow on long hmac keys When a key longer than block size is supplied, it is copied and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache alignment, as otherwise the hashed key may corrupt neighbouring memory. The copying is performed using kmemdup, however this leads to an overflow: reading more bytes (aligned_len - keylen) from the keylen source buffer. Fix this by replacing kmemdup with kmalloc, followed by memcpy.

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:27288 advisory.

    * kernel: can: isotp: fix tx.buf use-after-free in isotp_sendmsg() (CVE-2026-31474)
      * kernel: mptcp: fix slab-use-after-free in __inet_lookup_established (CVE-2026-31669)
      * kernel: rxrpc: Fix RxGK token loading to check bounds (CVE-2026-31641)
      * kernel: xen/privcmd: fix double free via VMA splitting (CVE-2026-31787)
      * kernel: Buffer overflow in drivers/xen/sys-hypervisor.c (CVE-2026-31786)
      * kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)
      * kernel: Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync (CVE-2026-31772)
      * kernel: bnxt_en: Fix RSS context delete logic (CVE-2026-43260)
      * kernel: crypto: caam - fix overflow on long hmac keys (CVE-2026-43330)
      * kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)
      * kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056)
      * kernel: wifi: mac80211: drop stray 'static' from fast-RX rx_result (CVE-2026-46152)
      * kernel: wifi: mac80211: remove station if connection prep fails (CVE-2026-46125)
      * kernel: exit: prevent preemption of oopsing TASK_DEAD task (CVE-2026-46173)
      * kernel: wifi: mac80211: use safe list iteration in radar detect work (CVE-2026-46166)


    Bug Fix(es) and Enhancement(s):

      * AlmaLinux10.0 - s390/ap: Expose ap_bindings_complete_count counter via sysfs [almalinux-10.2.z]     (JIRA:AlmaLinux-166047)
      * AlmaLinux9.5 crash due to lpfc NULL ndlp->vport [almalinux-10.2.z] (JIRA:AlmaLinux-171774)
      * objtool static_call check blocks build of out-of-tree livepatch modules on AlmaLinux 10.2 GA kernels ?     missing upstream revert f495054bd12e (JIRA:AlmaLinux-178495)
      * ibmveth Adapter Freeze with Small MSS [almalinux-10.2.z] (JIRA:AlmaLinux-179723)
      * rbd: eliminate a race in lock_dwork draining on unmap [almalinux-10.2.z] (JIRA:AlmaLinux-183127)
      * AlmaLinux10.0 - s390/mm: Add missing secure storage access fixups [almalinux-10.2.z]     (JIRA:AlmaLinux-183319)
      * [AlmaLinux10.2.z] Enable Pretimeout Watchdog Panic Functionality on x86 (JIRA:AlmaLinux-182299)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:27288 advisory.

    * kernel: can: isotp: fix tx.buf use-after-free in isotp_sendmsg() (CVE-2026-31474)

    * kernel: mptcp: fix slab-use-after-free in __inet_lookup_established (CVE-2026-31669)

    * kernel: rxrpc: Fix RxGK token loading to check bounds (CVE-2026-31641)

    * kernel: xen/privcmd: fix double free via VMA splitting (CVE-2026-31787)

    * kernel: Buffer overflow in drivers/xen/sys-hypervisor.c (CVE-2026-31786)

    * kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)

    * kernel: Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync (CVE-2026-31772)

    * kernel: bnxt_en: Fix RSS context delete logic (CVE-2026-43260)

    * kernel: crypto: caam - fix overflow on long hmac keys (CVE-2026-43330)

    * kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)

    * kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056)

    * kernel: wifi: mac80211: drop stray 'static' from fast-RX rx_result (CVE-2026-46152)

    * kernel: wifi: mac80211: remove station if connection prep fails (CVE-2026-46125)

    * kernel: exit: prevent preemption of oopsing TASK_DEAD task (CVE-2026-46173)

    * kernel: wifi: mac80211: use safe list iteration in radar detect work (CVE-2026-46166)

    Bug Fix(es) and Enhancement(s):

    * Rocky Linux10.0 - s390/ap: Expose ap_bindings_complete_count counter via sysfs [rhel-10.2.z] (JIRA:Rocky     Linux-166047)

    * Rocky Linux9.5 crash due to lpfc NULL ndlp->vport [rhel-10.2.z] (JIRA:Rocky Linux-171774)

    * objtool static_call check blocks build of out-of-tree livepatch modules on Rocky Linux 10.2 GA kernels ?     missing upstream revert f495054bd12e (JIRA:Rocky Linux-178495)

    * ibmveth Adapter Freeze with Small MSS [rhel-10.2.z] (JIRA:Rocky Linux-179723)

    * rbd: eliminate a race in lock_dwork draining on unmap [rhel-10.2.z] (JIRA:Rocky Linux-183127)

    * Rocky Linux10.0 - s390/mm: Add missing secure storage access fixups [rhel-10.2.z] (JIRA:Rocky     Linux-183319)

    * [Rocky Linux10.2.z] Enable Pretimeout Watchdog Panic Functionality on x86 (JIRA:Rocky Linux-182299)

Tenable has extracted the preceding description block directly from the RockyLinux 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-2026:27288 advisory.

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

    Security Fix(es):

    * kernel: can: isotp: fix tx.buf use-after-free in isotp_sendmsg() (CVE-2026-31474)

    * kernel: mptcp: fix slab-use-after-free in __inet_lookup_established (CVE-2026-31669)

    * kernel: rxrpc: Fix RxGK token loading to check bounds (CVE-2026-31641)

    * kernel: xen/privcmd: fix double free via VMA splitting (CVE-2026-31787)

    * kernel: Buffer overflow in drivers/xen/sys-hypervisor.c (CVE-2026-31786)

    * kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)

    * kernel: Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync (CVE-2026-31772)

    * kernel: bnxt_en: Fix RSS context delete logic (CVE-2026-43260)

    * kernel: crypto: caam - fix overflow on long hmac keys (CVE-2026-43330)

    * kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)

    * kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056)

    * kernel: wifi: mac80211: drop stray 'static' from fast-RX rx_result (CVE-2026-46152)

    * kernel: wifi: mac80211: remove station if connection prep fails (CVE-2026-46125)

    * kernel: exit: prevent preemption of oopsing TASK_DEAD task (CVE-2026-46173)

    * kernel: wifi: mac80211: use safe list iteration in radar detect work (CVE-2026-46166)

    Bug Fix(es) and Enhancement(s):

    * RHEL10.0 - s390/ap: Expose ap_bindings_complete_count counter via sysfs [rhel-10.2.z] (JIRA:RHEL-166047)

    * RHEL9.5 crash due to lpfc NULL ndlp->vport [rhel-10.2.z] (JIRA:RHEL-171774)

    * objtool static_call check blocks build of out-of-tree livepatch modules on RHEL 10.2 GA kernels ?     missing upstream revert f495054bd12e (JIRA:RHEL-178495)

    * ibmveth Adapter Freeze with Small MSS [rhel-10.2.z] (JIRA:RHEL-179723)

    * rbd: eliminate a race in lock_dwork draining on unmap [rhel-10.2.z] (JIRA:RHEL-183127)

    * RHEL10.0 - s390/mm: Add missing secure storage access fixups [rhel-10.2.z] (JIRA:RHEL-183319)

    * [RHEL10.2.z] Enable Pretimeout Watchdog Panic Functionality on x86 (JIRA:RHEL-182299)

    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 SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2195-1 advisory.

    The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues

    The following security issues were fixed:

    - CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 (bsc#1243603).
    - CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache     (bsc#1264013).
    - CVE-2026-23239: espintcp: Fix race condition in espintcp_close() (bsc#1259485).
    - CVE-2026-23240: tls: Fix race condition in tls_sw_cancel_work_tx() (bsc#1259484).
    - CVE-2026-23271: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (bsc#1260018).
    - CVE-2026-23351: netfilter: nft_set_pipapo: split gc into unlink and reclaim phase (bsc#1260526).
    - CVE-2026-23393: bridge: cfm: Fix race condition in peer_mep deletion (bsc#1260522).
    - CVE-2026-23449: net/sched: teql: Fix double-free in teql_master_xmit (bsc#1261779).
    - CVE-2026-23450: net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock() (bsc#1261584).
    - CVE-2026-23458: netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() (bsc#1261781).
    - CVE-2026-23461: Bluetooth: L2CAP: Fix use-after-free in l2cap_unregister_user (bsc#1261707).
    - CVE-2026-23462: Bluetooth: HIDP: Fix possible UAF (bsc#1261710).
    - CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (bsc#1261638).
    - CVE-2026-31403: NFSD: Hold net reference for the lifetime of /proc/fs/nfs/exports fd (bsc#1261796).
    - CVE-2026-31408: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold     (bsc#1261797).
    - CVE-2026-31436: dmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc()     (bsc#1262602).
    - CVE-2026-31470: virt: tdx-guest: Fix handling of host controlled 'quote' buffer length (bsc#1262665).
    - CVE-2026-31504: net: fix fanout UAF in packet_release() via NETDEV_UP race (bsc#1263085).
    - CVE-2026-31505: iavf: fix out-of-bounds writes in iavf_get_ethtool_stats() (bsc#1263093).
    - CVE-2026-31507: net/smc: fix double-free of smc_spd_priv when tee() duplicates splice pipe buffer     (bsc#1263095).
    - CVE-2026-31512: Bluetooth: L2CAP: Validate PDU length before reading SDU length in     l2cap_ecred_data_rcv()       (bsc#1262734).
    - CVE-2026-31528: perf: Make sure to use pmu_ctx->pmu for groups (bsc#1263001).
    - CVE-2026-31533: net/tls: fix use-after-free in -EBUSY error path of tls_do_encryption (bsc#1262758).
    - CVE-2026-31570: can: gw: fix OOB heap access in cgw_csum_crc8_rel() (bsc#1263065).
    - CVE-2026-31586: mm: blk-cgroup: fix use-after-free in cgwb_release_workfn() (bsc#1263176).
    - CVE-2026-31588: KVM: x86: Use scratch field in MMIO fragment to hold small write values (bsc#1263165).
    - CVE-2026-31602: ALSA: ctxfi: Limit PTP to a single page (bsc#1263723).
    - CVE-2026-31607: usbip: validate number_of_packets in usbip_pack_ret_submit() (bsc#1263600).
    - CVE-2026-31622: NFC: digital: Bounds check NFC-A cascade depth in SDD response handler (bsc#1263797).
    - CVE-2026-31649: net: stmmac: fix integer underflow in chain mode (bsc#1263582).
    - CVE-2026-31656: drm/i915/gt: fix refcount underflow in intel_engine_park_heartbeat (bsc#1263170).
    - CVE-2026-31662: tipc: fix bc_ackers underflow on duplicate GRP_ACK_MSG (bsc#1263131).
    - CVE-2026-31669: mptcp: fix slab-use-after-free in __inet_lookup_established (bsc#1263141).
    - CVE-2026-31685: netfilter: ip6t_eui64: reject invalid MAC header for all packets (bsc#1263668).
    - CVE-2026-31694: fuse: reject oversized dirents in page cache (bsc#1263901).
    - CVE-2026-31700: net/packet: fix TOCTOU race on mmap'd vnet_hdr in tpacket_snd() (bsc#1263882).
    - CVE-2026-31738: vxlan: validate ND option lengths in vxlan_na_create (bsc#1264059).
    - CVE-2026-31787: xen/privcmd: fix double free via VMA splitting (bsc#1262181).
    - CVE-2026-46331: kernel: net/sched: fix pedit partial COW leading to page cache
    - CVE-2026-43025: netfilter: ctnetlink: ignore explicit helper on new expectations (bsc#1263931).
    - CVE-2026-43027: netfilter: nf_conntrack_helper: pass helper to expect cleanup (bsc#1263933).
    - CVE-2026-43038: ipv6: icmp: clear skb2->cb in ip6_err_gen_icmpv6_unreach() (bsc#1264097).
    - CVE-2026-43044: crypto: caam - fix DMA corruption on long hmac keys (bsc#1264087).
    - CVE-2026-43050: atm: lec: fix use-after-free in sock_def_readable() (bsc#1264082).
    - CVE-2026-43110: wifi: brcmfmac: validate bsscfg indices in IF events (bsc#1264482).
    - CVE-2026-43120: RDMA/irdma: Fix double free related to rereg_user_mr.
    - CVE-2026-43126: ALSA: mixer: oss: Add card disconnect checkpoints (bsc#1264634).
    - CVE-2026-43190: netfilter: xt_tcpmss: check remaining length before reading optlen (bsc#1264848).
    - CVE-2026-43214: KVM: x86: Add SRCU protection for reading PDPTRs in __get_sregs2() (bsc#1264651).
    - CVE-2026-43329: netfilter: flowtable: strictly check for maximum number of actions (bsc#1265085).
    - CVE-2026-43330: crypto: caam - fix overflow on long hmac keys (bsc#1264801).
    - CVE-2026-43334: Bluetooth: SMP: force responder MITM requirements before building the pairing response     (bsc#1265090).
    - CVE-2026-43365: xfs: fix undersized l_iclog_roundoff values (bsc#1265119).
    - CVE-2026-43366: io_uring/kbuf: check if target buffer list is still legacy on recycle (bsc#1265116).
    - CVE-2026-43437: ALSA: pcm: fix use-after-free on linked stream runtime in snd_pcm_drain() (bsc#1265126).
    - CVE-2026-43494: net/rds: reset op_nents when zerocopy page pin fails (bsc#1265626).

    The following non security issues were fixed:

    - btrfs: reject root items with drop_progress and zero drop_level (git-fixes).
    - btrfs: replace BUG() with error handling in __btrfs_balance() (git-fixes).
    - check-for-config-changes: Exclude CC_MS_EXTENSIONS.
    - check-for-config-changes: Exclude HAVE_CFI_ICALL_NORMALIZE_INTEGERS{,_RUSTC}.
    - dm init: ensure device probing has finished in dm-mod.waitfor= (git-fixes).
    - hv_sock: fix ARM64 support (git-fixes).
    - ice: set max queues in alloc_etherdev_mqs() (git-fixes).
    - kdump, documentation: describe craskernel CMA reservation (jsc#PED-7249).
    - mkspec: Add signature to source list only when it exists.
    - net/rds: reset op_nents when zerocopy page pin fails (bsc#1265626).
    - net/sched: fix pedit partial COW leading to page cache corruption (bsc#1265421).
    - net: mana: Add MAC address to vPort logs and clarify error messages (git-fixes).
    - net: mana: check xdp_rxq registration before unreg in mana_destroy_rxq() (git-fixes).
    - net: mana: Don't overwrite port probe error with add_adev result (git-fixes).
    - net: mana: Fix crash from unvalidated SHM offset read from BAR0 during FLR (bsc#1265846).
    - net: mana: Fix EQ leak in mana_remove on NULL port (git-fixes).
    - net: mana: Fix RX skb truesize accounting (bsc#1248754).
    - net: mana: fix use-after-free in mana_hwc_destroy_channel() by reordering teardown (git-fixes).
    - net: mana: Guard mana_remove against double invocation (git-fixes).
    - net: mana: hardening: Validate adapter_mtu from MANA_QUERY_DEV_CONFIG (git-fixes).
    - net: mana: hardening: Validate doorbell ID from GDMA_REGISTER_DEVICE response (git-fixes).
    - net: mana: Init gf_stats_work before potential error paths in probe (git-fixes).
    - net: mana: Init link_change_work before potential error paths in probe (git-fixes).
    - net: mana: remove double CQ cleanup in mana_create_rxq error path (git-fixes).
    - net: mana: Set default number of queues to 16 (bsc#1261648).
    - net: mana: Skip WQ object destruction for uninitialized RXQ (git-fixes).
    - net: mana: Use at least SZ_4K in doorbell ID range check (git-fixes).
    - net: mana: Use pci_name() for debugfs directory naming (git-fixes).
    - ocfs2: fix possible deadlock between unlink and dio_end_io_write (bsc#1258718).
    - ocfs2: split transactions in dio completion to avoid credit exhaustion (bsc#1258718).
    - PCI: hv: Set default NUMA node to 0 for devices without affinity info (git-fixes).
    - RDMA/mana: Fix error unwind in mana_ib_create_qp_rss() (git-fixes).
    - RDMA/mana: Fix mana_destroy_wq_obj() cleanup in mana_ib_create_qp_rss() (git-fixes).
    - RDMA/mana: Remove user triggerable WARN_ON() in mana_ib_create_qp_rss() (git-fixes).
    - RDMA/mana: Validate rx_hash_key_len (git-fixes).
    - RDMA/mana_ib: cleanup the usage of mana_gd_send_request() (git-fixes).
    - RDMA/mana_ib: Disable RX steering on RSS QP destroy (git-fixes).
    - RDMA/mana_ib: Support memory windows (git-fixes).
    - sched/balancing: Switch the 'DEFINE_SPINLOCK(balancing)' spinlock into an 'atomic_t     sched_balance_running' flag       (bsc#1253754).
    - sched/fair: Change likelyhood of nohz.nr_cpus (bsc#1234634 bsc#1258961).
    - sched/fair: Have SD_SERIALIZE affect newidle balancing (bsc#1253754).
    - sched/fair: Move checking for nohz cpus after time check (bsc#1234634 bsc#1258961).
    - sched/fair: Remove nohz.nr_cpus and use weight of cpumask instead (bsc#1234634 bsc#1258961).
    - sched/fair: Skip sched_balance_running cmpxchg when balance is not due (bsc#1253754).
    - scsi: storvsc: Handle PERSISTENT_RESERVE_IN truncation for Hyper-V vFC (git-fixes).
    - scsi: target: iscsi: validate CHAP_R length before base64 decode (bsc#1265449).
    - tty: tty_io: update timestamps on all device nodes (bsc#1262020).
    - virt: tdx-guest: Return error for GetQuote failures (git-fixes).
    - workqueue: Break up enum definitions and give names to the types (bsc#1260522).
    - workqueue: Clean up enum work_bits and related constants (bsc#1260522).
    - workqueue: Factor out work_grab_pending() from __cancel_work_sync() (bsc#1260522).
    - workqueue: Fix UBSAN 'subtraction overflow' error in shift_and_mask() (bsc#1260522).
    - workqueue: Implement disable/enable for (delayed) work items (bsc#1260522).
    - workqueue: Introduce work_cancel_flags (bsc#1260522).
    - workqueue: Make @flags handling consistent across set_work_data() and friends (bsc#1260522).
    - workqueue: Preserve OFFQ bits in cancel[_sync] paths (bsc#1260522).
    - workqueue: Rename __cancel_work_timer() to __cancel_timer_sync() (bsc#1260522).
    - workqueue: Reorganize flush and cancel[_sync] functions (bsc#1260522).
    - Xarray: do not return sibling entries from xas_find_marked() (bsc#1263815).

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.

  - crypto: caam - fix overflow on long hmac keys When a key longer than block size is supplied, it is copied     and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache     alignment, as otherwise the hashed key may corrupt neighbouring memory. The copying is performed using     kmemdup, however this leads to an overflow: reading more bytes (aligned_len - keylen) from the keylen     source buffer. Fix this by replacing kmemdup with kmalloc, followed by memcpy. (CVE-2026-43330)

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

ID	Name	Product	Family	Severity
324048	SUSE SLED15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:2238-1)	Nessus	SuSE Local Security Checks	high
323100	AlmaLinux 10 : kernel (ALSA-2026:27288)	Nessus	Alma Linux Local Security Checks	high
321956	RockyLinux 10 : kernel (RLSA-2026:27288)	Nessus	Rocky Linux Local Security Checks	high
321829	RHEL 10 : kernel (RHSA-2026:27288)	Nessus	Red Hat Local Security Checks	high
318287	SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:2195-1)	Nessus	SuSE Local Security Checks	high
315665	Linux Distros Unpatched Vulnerability : CVE-2026-43330	Nessus	Misc.	high

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CVE-2026-43330

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