In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix double unregister of HCA_PORTS component Clear hca_devcom_comp in device's private data after unregistering it in LAG teardown. Otherwise a slightly lagging second pass through mlx5_unload_one() might try to unregister it again and trip over use-after-free. On s390 almost all PCI level recovery events trigger two passes through mxl5_unload_one() - one through the poll_health() method and one through mlx5_pci_err_detected() as callback from generic PCI error recovery. While testing PCI error recovery paths with more kernel debug features enabled, this issue reproducibly led to kernel panics with the following call chain: Unable to handle kernel pointer dereference in virtual kernel address space Failing address: 6b6b6b6b6b6b6000 TEID: 6b6b6b6b6b6b6803 ESOP-2 FSI Fault in home space mode while using kernel ASCE. AS:00000000705c4007 R3:0000000000000024 Oops: 0038 ilc:3 [#1]SMP CPU: 14 UID: 0 PID: 156 Comm: kmcheck Kdump: loaded Not tainted 6.18.0-20251130.rc7.git0.16131a59cab1.300.fc43.s390x+debug #1 PREEMPT Krnl PSW : 0404e00180000000 0000020fc86aa1dc (__lock_acquire+0x5c/0x15f0) R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 RI:0 EA:3 Krnl GPRS: 0000000000000000 0000020f00000001 6b6b6b6b6b6b6c33 0000000000000000 0000000000000000 0000000000000000 0000000000000001 0000000000000000 0000000000000000 0000020fca28b820 0000000000000000 0000010a1ced8100 0000010a1ced8100 0000020fc9775068 0000018fce14f8b8 0000018fce14f7f8 Krnl Code: 0000020fc86aa1cc: e3b003400004 lg %r11,832 0000020fc86aa1d2: a7840211 brc 8,0000020fc86aa5f4 *0000020fc86aa1d6: c09000df0b25 larl %r9,0000020fca28b820 >0000020fc86aa1dc: d50790002000 clc 0(8,%r9),0(%r2) 0000020fc86aa1e2: a7840209 brc 8,0000020fc86aa5f4 0000020fc86aa1e6: c0e001100401 larl %r14,0000020fca8aa9e8 0000020fc86aa1ec: c01000e25a00 larl %r1,0000020fca2f55ec 0000020fc86aa1f2: a7eb00e8 aghi %r14,232 Call Trace: __lock_acquire+0x5c/0x15f0 lock_acquire.part.0+0xf8/0x270 lock_acquire+0xb0/0x1b0 down_write+0x5a/0x250 mlx5_detach_device+0x42/0x110 [mlx5_core] mlx5_unload_one_devl_locked+0x50/0xc0 [mlx5_core] mlx5_unload_one+0x42/0x60 [mlx5_core] mlx5_pci_err_detected+0x94/0x150 [mlx5_core] zpci_event_attempt_error_recovery+0xcc/0x388

The remote Oracle Linux 10 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-500150 advisory.

    - x86/bugs: Make Safe-RET robust against interrupt injection (Borislav Petkov (AMD))  [Orabug: 39844812]     {CVE-2026-68480}
    - KVM: x86: Check for invalid/obsolete root *after* making MMU pages available (Sean Christopherson)     [Orabug: 39844799]  {CVE-2026-64561}
    - net: openvswitch: reject oversized nested action attrs (Asim Viladi Oglu Manizada)  [Orabug: 39816011]     {CVE-2026-64531}
    - xfrm: hold dev ref until after transport_finish NF_HOOK (Qi Tang)  [Orabug: 39262397]  {CVE-2026-31663}
    - KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry (Hyunwoo Kim)     [Orabug: 39531622]  {CVE-2026-46316}
    - ipv6: account for fraggap on the paged allocation path (Wongi Lee)  [Orabug: 39686467]  {CVE-2026-53362}
    - KVM: x86: Fix shadow paging use-after-free due to unexpected role (Paolo Bonzini) [Orabug:
    39673856,39686459] {CVE-2026-53359}
    - net/sched: fix pedit partial COW leading to page cache corruption (Rajat Gupta) [Orabug:
    39567285,39668752] {CVE-2026-46331}
    - net_sched: act_pedit: use RCU in tcf_pedit_dump() (Eric Dumazet) [Orabug: 39567285] {CVE-2026-46331}
    - eventpoll: fix ep_remove struct eventpoll / struct file UAF (Christian Brauner) [Orabug: 39466882]     {CVE-2026-46242}
    - eventpoll: move epi_fget() up (Christian Brauner) [Orabug: 39466882] {CVE-2026-46242}
    - eventpoll: rename ep_remove_safe() back to ep_remove() (Christian Brauner) [Orabug: 39466882]     {CVE-2026-46242}
    - eventpoll: drop vestigial __ prefix from ep_remove_{file,epi}() (Christian Brauner) [Orabug: 39466882]     {CVE-2026-46242}
    - eventpoll: kill __ep_remove() (Christian Brauner) [Orabug: 39466882] {CVE-2026-46242}
    - eventpoll: split __ep_remove() (Christian Brauner) [Orabug: 39466882] {CVE-2026-46242}
    - eventpoll: use hlist_is_singular_node() in __ep_remove() (Christian Brauner) [Orabug: 39466882]     {CVE-2026-46242}
    - md: fix array_state=clear sysfs deadlock (Yu Kuai) [Orabug: 39190489,39668924] {CVE-2026-53125}
    - md: avoid repeated calls to del_gendisk (Xiao Ni) [Orabug: 39190489,39668918] {CVE-2025-68373}
    - net: skbuff: fix missing zerocopy reference in pskb_carve helpers (Minh Nguyen) [Orabug:
    39619387,39639984,39656679] {CVE-2026-52943}
    - net/mlx5: Fix crash when moving to switchdev mode (Patrisious Haddad) [Orabug: 38667152,39344020]     {CVE-2026-43467}
    - net/mlx5: Fix double unregister of HCA_PORTS component (Gerd Bayer) [Orabug: 38667152,39590860]     {CVE-2025-68790}
    - net/mlx5: Fix IPsec cleanup over MPV device (Patrisious Haddad) [Orabug: 38667152,38730559]     {CVE-2025-40238}
    - net/mlx5: HWS, fix complex rules rehash error flow (Yevgeny Kliteynik) [Orabug: 38667152,39590850]     {CVE-2025-39768}
    - macsec: sync features on RTM_NEWLINK (Stanislav Fomichev) [Orabug: 38667152,39590858] {CVE-2025-39874}
    - net: dev_ioctl: take ops lock in hwtstamp lower paths (Carolina Jubran) [Orabug: 38667152,39590854]     {CVE-2025-39908}
    - team: replace team lock with rtnl lock (Stanislav Fomichev) [Orabug: 38667152,39590857] {CVE-2025-39733}
    - net: prevent a NULL deref in rtnl_create_link() (Eric Dumazet) [Orabug: 38667152,39590851]     {CVE-2025-38271}
    - virtio-pci: Fix result size returned for the admin command completion (Israel Rukshin) [Orabug:
    38667152,39590859] {CVE-2025-38314}

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

  - In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix double unregister of     HCA_PORTS component Clear hca_devcom_comp in device's private data after unregistering it in LAG teardown.
    Otherwise a slightly lagging second pass through mlx5_unload_one() might try to unregister it again and     trip over use-after-free. On s390 almost all PCI level recovery events trigger two passes through     mxl5_unload_one() - one through the poll_health() method and one through mlx5_pci_err_detected() as     callback from generic PCI error recovery. While testing PCI error recovery paths with more kernel debug     features enabled, this issue reproducibly led to kernel panics with the following call chain: Unable to     handle kernel pointer dereference in virtual kernel address space Failing address: 6b6b6b6b6b6b6000 TEID:
    6b6b6b6b6b6b6803 ESOP-2 FSI Fault in home space mode while using kernel ASCE. AS:00000000705c4007     R3:0000000000000024 Oops: 0038 ilc:3 [#1]SMP CPU: 14 UID: 0 PID: 156 Comm: kmcheck Kdump: loaded Not     tainted 6.18.0-20251130.rc7.git0.16131a59cab1.300.fc43.s390x+debug #1 PREEMPT Krnl PSW : 0404e00180000000     0000020fc86aa1dc (__lock_acquire+0x5c/0x15f0) R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 RI:0 EA:3     Krnl GPRS: 0000000000000000 0000020f00000001 6b6b6b6b6b6b6c33 0000000000000000 0000000000000000     0000000000000000 0000000000000001 0000000000000000 0000000000000000 0000020fca28b820 0000000000000000     0000010a1ced8100 0000010a1ced8100 0000020fc9775068 0000018fce14f8b8 0000018fce14f7f8 Krnl Code:
    0000020fc86aa1cc: e3b003400004 lg %r11,832 0000020fc86aa1d2: a7840211 brc 8,0000020fc86aa5f4
    *0000020fc86aa1d6: c09000df0b25 larl %r9,0000020fca28b820 >0000020fc86aa1dc: d50790002000 clc     0(8,%r9),0(%r2) 0000020fc86aa1e2: a7840209 brc 8,0000020fc86aa5f4 0000020fc86aa1e6: c0e001100401 larl     %r14,0000020fca8aa9e8 0000020fc86aa1ec: c01000e25a00 larl %r1,0000020fca2f55ec 0000020fc86aa1f2: a7eb00e8     aghi %r14,232 Call Trace: __lock_acquire+0x5c/0x15f0 lock_acquire.part.0+0xf8/0x270     lock_acquire+0xb0/0x1b0 down_write+0x5a/0x250 mlx5_detach_device+0x42/0x110 [mlx5_core]     mlx5_unload_one_devl_locked+0x50/0xc0 [mlx5_core] mlx5_unload_one+0x42/0x60 [mlx5_core]     mlx5_pci_err_detected+0x94/0x150 [mlx5_core] zpci_event_attempt_error_recovery+0xcc/0x388 (CVE-2025-68790)

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

ID	Name	Product	Family	Type	Severity
334160	Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-500150)	Nessus	Oracle Linux Local Security Checks	Local	medium
286803	Linux Distros Unpatched Vulnerability : CVE-2025-68790	Nessus	Misc.	Local	high

Detections

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CVE-2025-68790

high

Tenable Plugins

medium

high