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Fencer Vulns
critical 9.8

CVE-2025-68285 in the critical feed json

libceph: fix potential use-after-free in have_mon_and_osd_map()

published 2025-12-16 10 mo ago modified 2026-10-14 25 d ago also EUVD-2025-203795

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

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

libceph: fix potential use-after-free in have_mon_and_osd_map()

The wait loop in __ceph_open_session() can race with the client receiving a new monmap or osdmap shortly after the initial map is received. Both ceph_monc_handle_map() and handle_one_map() install a new map immediately after freeing the old one

kfree(monc->monmap); monc->monmap = monmap;

ceph_osdmap_destroy(osdc->osdmap); osdc->osdmap = newmap;

under client->monc.mutex and client->osdc.lock respectively, but because neither is taken in have_mon_and_osd_map() it's possible for client->monc.monmap->epoch and client->osdc.osdmap->epoch arms in

client->monc.monmap && client->monc.monmap->epoch && client->osdc.osdmap && client->osdc.osdmap->epoch;

condition to dereference an already freed map. This happens to be reproducible with generic/395 and generic/397 with KASAN enabled:

BUG: KASAN: slab-use-after-free in have_mon_and_osd_map+0x56/0x70 Read of size 4 at addr ffff88811012d810 by task mount.ceph/13305 CPU: 2 UID: 0 PID: 13305 Comm: mount.ceph Not tainted 6.14.0-rc2-build2+ #1266 ... Call Trace: <TASK> have_mon_and_osd_map+0x56/0x70 ceph_open_session+0x182/0x290 ceph_get_tree+0x333/0x680 vfs_get_tree+0x49/0x180 do_new_mount+0x1a3/0x2d0 path_mount+0x6dd/0x730 do_mount+0x99/0xe0 __do_sys_mount+0x141/0x180 do_syscall_64+0x9f/0x100 entry_SYSCALL_64_after_hwframe+0x76/0x7e </TASK>

Allocated by task 13305: ceph_osdmap_alloc+0x16/0x130 ceph_osdc_init+0x27a/0x4c0 ceph_create_client+0x153/0x190 create_fs_client+0x50/0x2a0 ceph_get_tree+0xff/0x680 vfs_get_tree+0x49/0x180 do_new_mount+0x1a3/0x2d0 path_mount+0x6dd/0x730 do_mount+0x99/0xe0 __do_sys_mount+0x141/0x180 do_syscall_64+0x9f/0x100 entry_SYSCALL_64_after_hwframe+0x76/0x7e

Freed by task 9475: kfree+0x212/0x290 handle_one_map+0x23c/0x3b0 ceph_osdc_handle_map+0x3c9/0x590 mon_dispatch+0x655/0x6f0 ceph_con_process_message+0xc3/0xe0 ceph_con_v1_try_read+0x614/0x760 ceph_con_workfn+0x2de/0x650 process_one_work+0x486/0x7c0 process_scheduled_works+0x73/0x90 worker_thread+0x1c8/0x2a0 kthread+0x2ec/0x300 ret_from_fork+0x24/0x40 ret_from_fork_asm+0x1a/0x30

Rewrite the wait loop to check the above condition directly with client->monc.mutex and client->osdc.lock taken as appropriate. While at it, improve the timeout handling (previously mount_timeout could be exceeded in case wait_event_interruptible_timeout() slept more than once) and access client->auth_err under client->monc.mutex to match how it's set in finish_auth().

monmap_show() and osdmap_show() now take the respective lock before accessing the map as well.

Patch / fix

  • Linux Linux 5.10.247, 5.15.197, 6.1.159, 6.6.119, 6.12.61, 6.17.11, 6.18
  • linux Debian 12 6.1.159-1
  • linux Debian 13 6.12.63-1
  • linux Debian 14 6.17.11-1

debian advisories DEBIAN-CVE-2025-68285

  • linux Ubuntu 22.04 LTS 5.15.0-173.183
  • linux Ubuntu 24.04 LTS 6.8.0-106.106
  • linux Ubuntu 25.10 6.17.0-19.19
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1103.110
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1050.53
  • linux-aws Ubuntu 25.10 6.17.0-1009.9
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1103.112
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1052.55

ubuntu advisories UBUNTU-CVE-2025-68285

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 10.2 6.12.0-211.60.1.el10_2
  • rv RHEL 10.2 6.12.0-211.60.1.el10_2
  • perf RHEL 10.2 6.12.0-211.60.1.el10_2
  • rtla RHEL 10.2 6.12.0-211.60.1.el10_2
  • libperf RHEL 10.2 6.12.0-211.60.1.el10_2
  • kernel-rt RHEL 10.2 6.12.0-211.60.1.el10_2
  • kernel-64k RHEL 10.2 6.12.0-211.60.1.el10_2
  • kernel-core RHEL 10.2 6.12.0-211.60.1.el10_2

red hat advisories RHSA-2026:71602RHSA-2026:2558RHSA-2026:2557RHSA-2026:2446RHSA-2026:2127RHSA-2026:2115

  • kernel-livepatch-SLE16_Update_2 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 4-160000.1.1
  • kernel-livepatch-SLE16_Update_1 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6-160000.1.1
  • kernel-livepatch-SLE16_Update_0 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 8-160000.4.3
  • kernel-livepatch-SLE16_Update_3 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 3-160000.1.1
  • kernel-livepatch-MICRO-6-0_Update_13 Linux Micro 6.1, Linux Micro 6.0 4-1.1
  • kernel-livepatch-MICRO-6-0_Update_14 Linux Micro 6.1, Linux Micro 6.0 2-1.2
  • kernel-livepatch-MICRO-6-0_Update_11 Linux Micro 6.1, Linux Micro 6.0 6-1.1
  • kernel-livepatch-MICRO-6-0_Update_12 Linux Micro 6.1, Linux Micro 6.0 6-1.1

suse advisories SUSE-SU-2026:1136-1SUSE-SU-2026:1132-1SUSE-SU-2026:1125-1SUSE-SU-2026:1102-1SUSE-SU-2026:1099-1SUSE-SU-2026:1096-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.9.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.9.1

opensuse advisories openSUSE-SU-2026:20145-1

  • kernel AlmaLinux 10 6.12.0-211.60.1.el10_2
  • rv AlmaLinux 10 6.12.0-211.60.1.el10_2
  • perf AlmaLinux 10 6.12.0-211.60.1.el10_2
  • rtla AlmaLinux 10 6.12.0-211.60.1.el10_2
  • libperf AlmaLinux 10 6.12.0-211.60.1.el10_2
  • kernel-rt AlmaLinux 10 6.12.0-211.60.1.el10_2
  • kernel-64k AlmaLinux 10 6.12.0-211.60.1.el10_2
  • kernel-core AlmaLinux 10 6.12.0-211.60.1.el10_2

almalinux advisories ALSA-2026:71602ALSA-2026:0786ALSA-2026:0793ALSA-2026:0443ALSA-2026:0444

  • kernel Rocky Linux 10 6.12.0-211.60.1.el10_2
  • kernel Rocky Linux 10 6.12.0-124.28.1.el10_1
  • kernel Rocky Linux 9 5.14.0-611.24.1.el9_7
  • kernel-rt Rocky Linux 8 4.18.0-553.92.1.rt7.433.el8_10
  • kernel Rocky Linux 8 4.18.0-553.92.1.el8_10

rocky linux advisories RLSA-2026:71602RLSA-2026:0786RLSA-2026:0793RLSA-2026:0443RLSA-2026:0444

  • kernel Azure Linux 3.0 6.6.119.3-1

azure linux advisories AZL-72607

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-68285 updated cvss 5.5

kernel: libceph: fix potential use-after-free in have_mon_and_osd_map()

  • Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
    affected: no fix available
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.106.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.106.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.106.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.106.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.106.1.el9_4
    fixed: vendor fix RHSA-2026:0489
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.79.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.79.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.79.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.79.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.79.1.el9_6
    fixed: vendor fix RHSA-2026:0804
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-611.24.1.el9_7, perf 5.14.0-611.24.1.el9_7, rtla 5.14.0-611.24.1.el9_7, python3-perf 5.14.0-611.24.1.el9_7, kernel-devel-matched 5.14.0-611.24.1.el9_7, kernel-64k-devel-matched 5.14.0-611.24.1.el9_7, +7 more
    fixed: vendor fix RHSA-2026:0793
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-124.28.1.el10_1, rv 6.12.0-211.60.1.el10_2, perf 6.12.0-124.28.1.el10_1, perf 6.12.0-211.60.1.el10_2, rtla 6.12.0-124.28.1.el10_1, rtla 6.12.0-211.60.1.el10_2, +20 more
    fixed: vendor fix RHSA-2026:0786
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.161.1.el9_0, kernel-devel-matched 5.14.0-70.161.1.el9_0, kernel-debug-devel-matched 5.14.0-70.161.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.161.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.161.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.161.1.el9_0, +2 more
    fixed: vendor fix RHSA-2026:0576
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.152.1.el9_2, rtla 5.14.0-284.152.1.el9_2, kernel-devel-matched 5.14.0-284.152.1.el9_2, kernel-64k-devel-matched 5.14.0-284.152.1.el9_2, kernel-debug-devel-matched 5.14.0-284.152.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.152.1.el9_2, +5 more
    fixed: vendor fix RHSA-2026:0535
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.54.1.el10_0, perf 6.12.0-55.54.1.el10_0, rtla 6.12.0-55.54.1.el10_0, python3-perf 6.12.0-55.54.1.el10_0, kernel-devel-matched 6.12.0-55.54.1.el10_0, kernel-64k-devel-matched 6.12.0-55.54.1.el10_0, +7 more
    fixed: vendor fix RHSA-2026:0747
show 31 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.106.1.el9_4, perf 5.14.0-427.106.1.el9_4, rtla 5.14.0-427.106.1.el9_4, kernel-devel-matched 5.14.0-427.106.1.el9_4, kernel-64k-devel-matched 5.14.0-427.106.1.el9_4, kernel-debug-devel-matched 5.14.0-427.106.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:0489
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.79.1.el9_6, perf 5.14.0-570.79.1.el9_6, rtla 5.14.0-570.79.1.el9_6, python3-perf 5.14.0-570.79.1.el9_6, kernel-devel-matched 5.14.0-570.79.1.el9_6, kernel-64k-devel-matched 5.14.0-570.79.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:0804
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.92.1.el8_10, kernel 4.18.0-553.92.1.el8_10, bpftool 4.18.0-553.92.1.el8_10, kernel-core 4.18.0-553.92.1.el8_10, kernel-tools 4.18.0-553.92.1.el8_10, python3-perf 4.18.0-553.92.1.el8_10, +16 more
    fixed: vendor fix RHSA-2026:0444
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-611.24.1.el9_7, kernel-64k 5.14.0-611.24.1.el9_7, kernel-core 5.14.0-611.24.1.el9_7, kernel-tools 5.14.0-611.24.1.el9_7, kernel-modules 5.14.0-611.24.1.el9_7, kernel-64k-core 5.14.0-611.24.1.el9_7, +28 more
    fixed: vendor fix RHSA-2026:0793
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-124.28.1.el10_1, kernel 6.12.0-211.60.1.el10_2, kernel-64k 6.12.0-124.28.1.el10_1, kernel-64k 6.12.0-211.60.1.el10_2, kernel-core 6.12.0-124.28.1.el10_1, kernel-core 6.12.0-211.60.1.el10_2, +62 more
    fixed: vendor fix RHSA-2026:0786
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.181.1.el8_2, kernel 4.18.0-193.181.1.el8_2, bpftool 4.18.0-193.181.1.el8_2, kernel-core 4.18.0-193.181.1.el8_2, kernel-tools 4.18.0-193.181.1.el8_2, python3-perf 4.18.0-193.181.1.el8_2, +8 more
    fixed: vendor fix RHSA-2026:0643
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.183.1.el8_4, kernel 4.18.0-305.183.1.el8_4, bpftool 4.18.0-305.183.1.el8_4, kernel-core 4.18.0-305.183.1.el8_4, kernel-tools 4.18.0-305.183.1.el8_4, python3-perf 4.18.0-305.183.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:0533
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.175.1.el8_6, kernel 4.18.0-372.175.1.el8_6, bpftool 4.18.0-372.175.1.el8_6, kernel-core 4.18.0-372.175.1.el8_6, kernel-tools 4.18.0-372.175.1.el8_6, python3-perf 4.18.0-372.175.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.175.1.el8_6, kernel 4.18.0-372.175.1.el8_6, bpftool 4.18.0-372.175.1.el8_6, kernel-core 4.18.0-372.175.1.el8_6, kernel-tools 4.18.0-372.175.1.el8_6, python3-perf 4.18.0-372.175.1.el8_6, +20 more
    fixed: vendor fix RHSA-2026:0536
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.124.1.el8_8, kernel 4.18.0-477.124.1.el8_8, bpftool 4.18.0-477.124.1.el8_8, kernel-core 4.18.0-477.124.1.el8_8, kernel-tools 4.18.0-477.124.1.el8_8, python3-perf 4.18.0-477.124.1.el8_8, +14 more
    fixed: vendor fix RHSA-2026:0532
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.161.1.el9_0, bpftool 5.14.0-70.161.1.el9_0, kernel-core 5.14.0-70.161.1.el9_0, kernel-tools 5.14.0-70.161.1.el9_0, python3-perf 5.14.0-70.161.1.el9_0, kernel-modules 5.14.0-70.161.1.el9_0, +19 more
    fixed: vendor fix RHSA-2026:0576
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.152.1.el9_2, kernel 5.14.0-284.152.1.el9_2, kernel-64k 5.14.0-284.152.1.el9_2, kernel-core 5.14.0-284.152.1.el9_2, kernel-tools 5.14.0-284.152.1.el9_2, python3-perf 5.14.0-284.152.1.el9_2, +33 more
    fixed: vendor fix RHSA-2026:0535
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.54.1.el10_0, kernel-64k 6.12.0-55.54.1.el10_0, kernel-core 6.12.0-55.54.1.el10_0, kernel-tools 6.12.0-55.54.1.el10_0, kernel-modules 6.12.0-55.54.1.el10_0, kernel-64k-core 6.12.0-55.54.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:0747
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.106.1.el9_4, kernel 5.14.0-427.106.1.el9_4, kernel-64k 5.14.0-427.106.1.el9_4, kernel-core 5.14.0-427.106.1.el9_4, kernel-tools 5.14.0-427.106.1.el9_4, python3-perf 5.14.0-427.106.1.el9_4, +33 more
    fixed: vendor fix RHSA-2026:0489
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.79.1.el9_6, kernel-64k 5.14.0-570.79.1.el9_6, kernel-core 5.14.0-570.79.1.el9_6, kernel-tools 5.14.0-570.79.1.el9_6, kernel-modules 5.14.0-570.79.1.el9_6, kernel-64k-core 5.14.0-570.79.1.el9_6, +30 more
    fixed: vendor fix RHSA-2026:0804
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.183.1.el8_4, kernel 4.18.0-305.183.1.el8_4, bpftool 4.18.0-305.183.1.el8_4, kernel-core 4.18.0-305.183.1.el8_4, kernel-tools 4.18.0-305.183.1.el8_4, python3-perf 4.18.0-305.183.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:0533
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.175.1.el8_6, kernel 4.18.0-372.175.1.el8_6, bpftool 4.18.0-372.175.1.el8_6, kernel-core 4.18.0-372.175.1.el8_6, kernel-tools 4.18.0-372.175.1.el8_6, python3-perf 4.18.0-372.175.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:0536
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.124.1.el8_8, kernel 4.18.0-477.124.1.el8_8, bpftool 4.18.0-477.124.1.el8_8, kernel-core 4.18.0-477.124.1.el8_8, kernel-tools 4.18.0-477.124.1.el8_8, python3-perf 4.18.0-477.124.1.el8_8, +8 more
    fixed: vendor fix RHSA-2026:0532
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-611.24.1.el9_7, kernel-debuginfo-common-s390x 5.14.0-611.24.1.el9_7, kernel-debuginfo-common-x86_64 5.14.0-611.24.1.el9_7, kernel-debuginfo-common-aarch64 5.14.0-611.24.1.el9_7, kernel-debuginfo-common-ppc64le 5.14.0-611.24.1.el9_7
    fixed: vendor fix RHSA-2026:0793
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-124.28.1.el10_1, libperf 6.12.0-211.60.1.el10_2, kernel-debuginfo-common-s390x 6.12.0-124.28.1.el10_1, kernel-debuginfo-common-s390x 6.12.0-211.60.1.el10_2, kernel-debuginfo-common-x86_64 6.12.0-124.28.1.el10_1, kernel-debuginfo-common-x86_64 6.12.0-211.60.1.el10_2, +4 more
    fixed: vendor fix RHSA-2026:0786
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.54.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.54.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.54.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.54.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.54.1.el10_0
    fixed: vendor fix RHSA-2026:0747
  • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel 4.18.0-553.92.1.el8_10
    fixed: vendor fix RHSA-2026:0444
  • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt 3.10.0-1160.145.1.rt56.1297.el7, kernel-rt-trace 3.10.0-1160.145.1.rt56.1297.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.145.1.rt56.1297.el7
    fixed: vendor fix RHSA-2026:0754
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.92.1.rt7.433.el8_10, kernel-rt-kvm 4.18.0-553.92.1.rt7.433.el8_10, kernel-rt-core 4.18.0-553.92.1.rt7.433.el8_10, kernel-rt-modules 4.18.0-553.92.1.rt7.433.el8_10, kernel-rt-debug-kvm 4.18.0-553.92.1.rt7.433.el8_10, kernel-rt-debug-core 4.18.0-553.92.1.rt7.433.el8_10, +4 more
    fixed: vendor fix RHSA-2026:0443
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-kvm 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-core 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-modules 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-debug-kvm 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-debug-core 5.14.0-70.161.1.rt21.233.el9_0, +4 more
    fixed: vendor fix RHSA-2026:0537
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-611.24.1.el9_7, kernel-rt-64k 5.14.0-611.24.1.el9_7, kernel-rt-core 5.14.0-611.24.1.el9_7, kernel-rt-modules 5.14.0-611.24.1.el9_7, kernel-rt-64k-core 5.14.0-611.24.1.el9_7, kernel-rt-debug-core 5.14.0-611.24.1.el9_7, +14 more
    fixed: vendor fix RHSA-2026:0793
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-124.28.1.el10_1, kernel-rt 6.12.0-211.60.1.el10_2, kernel-rt-64k 6.12.0-124.28.1.el10_1, kernel-rt-64k 6.12.0-211.60.1.el10_2, kernel-rt-core 6.12.0-124.28.1.el10_1, kernel-rt-core 6.12.0-211.60.1.el10_2, +34 more
    fixed: vendor fix RHSA-2026:0786
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-core 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-modules 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-debug-core 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-debug-modules 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-modules-extra 5.14.0-70.161.1.rt21.233.el9_0, +2 more
    fixed: vendor fix RHSA-2026:0537
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-core 5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-modules 5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-debug-core 5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-modules-core 5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-debug-modules 5.14.0-284.152.1.rt14.437.el9_2, +4 more
    fixed: vendor fix RHSA-2026:0534
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.54.1.el10_0, kernel-rt-64k 6.12.0-55.54.1.el10_0, kernel-rt-core 6.12.0-55.54.1.el10_0, kernel-rt-modules 6.12.0-55.54.1.el10_0, kernel-rt-64k-core 6.12.0-55.54.1.el10_0, kernel-rt-debug-core 6.12.0-55.54.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:0747
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.106.1.el9_4, kernel-rt-core 5.14.0-427.106.1.el9_4, kernel-rt-modules 5.14.0-427.106.1.el9_4, kernel-rt-debug-core 5.14.0-427.106.1.el9_4, kernel-rt-modules-core 5.14.0-427.106.1.el9_4, kernel-rt-debug-modules 5.14.0-427.106.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:0489
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.79.1.el9_6, kernel-rt-64k 5.14.0-570.79.1.el9_6, kernel-rt-core 5.14.0-570.79.1.el9_6, kernel-rt-modules 5.14.0-570.79.1.el9_6, kernel-rt-64k-core 5.14.0-570.79.1.el9_6, kernel-rt-debug-core 5.14.0-570.79.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:0804

9 more fixed, 5 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
4 mo ago

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.