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Fencer Vulns
high 8.8

CVE-2025-39982 json

Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync

published 2025-10-15 12 mo ago modified 2026-10-19 20 d ago also EUVD-2025-34590

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 20%
public exploits
0
none known

Summary

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

Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync

This fixes the following UFA in hci_acl_create_conn_sync where a connection still pending is command submission (conn->state == BT_OPEN) maybe freed, also since this also can happen with the likes of hci_le_create_conn_sync fix it as well:

BUG: KASAN: slab-use-after-free in hci_acl_create_conn_sync+0x5ef/0x790 net/bluetooth/hci_sync.c:6861 Write of size 2 at addr ffff88805ffcc038 by task kworker/u11:2/9541

CPU: 1 UID: 0 PID: 9541 Comm: kworker/u11:2 Not tainted 6.16.0-rc7 #3 PREEMPT(full) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 Workqueue: hci3 hci_cmd_sync_work Call Trace: <TASK> dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xca/0x230 mm/kasan/report.c:480 kasan_report+0x118/0x150 mm/kasan/report.c:593 hci_acl_create_conn_sync+0x5ef/0x790 net/bluetooth/hci_sync.c:6861 hci_cmd_sync_work+0x210/0x3a0 net/bluetooth/hci_sync.c:332 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 home/kwqcheii/source/fuzzing/kernel/kasan/linux-6.16-rc7/arch/x86/entry/entry_64.S:245 </TASK>

Allocated by task 123736: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_noprof+0x230/0x3d0 mm/slub.c:4359 kmalloc_noprof include/linux/slab.h:905 [inline] kzalloc_noprof include/linux/slab.h:1039 [inline] __hci_conn_add+0x233/0x1b30 net/bluetooth/hci_conn.c:939 hci_conn_add_unset net/bluetooth/hci_conn.c:1051 [inline] hci_connect_acl+0x16c/0x4e0 net/bluetooth/hci_conn.c:1634 pair_device+0x418/0xa70 net/bluetooth/mgmt.c:3556 hci_mgmt_cmd+0x9c9/0xef0 net/bluetooth/hci_sock.c:1719 hci_sock_sendmsg+0x6ca/0xef0 net/bluetooth/hci_sock.c:1839 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x219/0x270 net/socket.c:727 sock_write_iter+0x258/0x330 net/socket.c:1131 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x54b/0xa90 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 103680: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2381 [inline] slab_free mm/slub.c:4643 [inline] kfree+0x18e/0x440 mm/slub.c:4842 device_release+0x9c/0x1c0 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x22b/0x480 lib/kobject.c:737 hci_conn_cleanup net/bluetooth/hci_conn.c:175 [inline] hci_conn_del+0x8ff/0xcb0 net/bluetooth/hci_conn.c:1173 hci_conn_complete_evt+0x3c7/0x1040 net/bluetooth/hci_event.c:3199 hci_event_func net/bluetooth/hci_event.c:7477 [inline] hci_event_packet+0x7e0/0x1200 net/bluetooth/hci_event.c:7531 hci_rx_work+0x46a/0xe80 net/bluetooth/hci_core.c:4070 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 home/kwqcheii/sour ---truncated---

Patch / fix

  • Linux Linux 6.1.155, 6.6.109, 6.12.50, 6.16.10, 6.17
  • linux Debian 12 6.1.158-1
  • linux Debian 13 6.12.57-1
  • linux Debian 14 6.16.10-1

debian advisories DEBIAN-CVE-2025-39982

  • linux Ubuntu 24.04 LTS 6.8.0-106.106
  • linux Ubuntu 25.10 6.17.0-6.6
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1050.53
  • linux-aws Ubuntu 25.10 6.17.0-1003.3
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1052.55
  • linux-gcp Ubuntu 25.10 6.17.0-1003.3
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1048.53
  • linux-ibm Ubuntu 24.04 LTS 6.8.0-1049.49

ubuntu advisories UBUNTU-CVE-2025-39982

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 10.1 6.12.0-124.20.1.el10_1
  • rv RHEL 10.1 6.12.0-124.20.1.el10_1
  • perf RHEL 10.1 6.12.0-124.20.1.el10_1
  • rtla RHEL 10.1 6.12.0-124.20.1.el10_1
  • libperf RHEL 10.1 6.12.0-124.20.1.el10_1
  • kernel-rt RHEL 10.1 6.12.0-124.20.1.el10_1
  • kernel-64k RHEL 10.1 6.12.0-124.20.1.el10_1
  • kernel-core RHEL 10.1 6.12.0-124.20.1.el10_1

red hat advisories RHSA-2026:44385RHSA-2026:0576RHSA-2026:0537RHSA-2026:0535RHSA-2026:0534RHSA-2026:0489

  • kernel-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.58.1
  • kernel-syms-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.58.1
  • kernel-rt_debug Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.58.1
  • kernel-source-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.58.1
  • kernel-rt Linux Micro 6.2 6.12.0-160000.7.1
  • kernel-64kb SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.7.1
  • kernel-source SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.7.1
  • kernel-default SLES 16.0, SLE High Availability Extension 16.0, Linux Micro 6.2 +1 more 6.12.0-160000.7.1

suse advisories SUSE-SU-2025:4301-1SUSE-SU-2025:21080-1SUSE-SU-2025:21147-1SUSE-SU-2025:21180-1SUSE-SU-2026:20561-1SUSE-SU-2025:21052-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.7.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.7.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.7.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.7.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.7.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.7.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.7.1
  • kernel-kvmsmall openSUSE Leap 16.0 6.12.0-160000.7.1

opensuse advisories openSUSE-SU-2025:20091-1

  • kernel-abi-stablelists AlmaLinux 10 6.12.0-124.20.1.el10_1

almalinux advisories ALSA-2025:22854

  • kernel Rocky Linux 10 6.12.0-124.20.1.el10_1

rocky linux advisories RLSA-2025:22854

  • kernel Azure Linux 3.0 6.6.112.1-1

azure linux advisories AZL-68522

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-2025-39982 updated cvss 7.5

kernel: Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    affected: workaround, no fix planned “Out of support scope”
  • 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: workaround, 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 5.14.0-570.129.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.129.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.129.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.129.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.129.1.el9_6
    fixed: vendor fix RHSA-2026:44385
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-611.8.1.el9_7, perf 5.14.0-611.8.1.el9_7, rtla 5.14.0-611.8.1.el9_7, python3-perf 5.14.0-611.8.1.el9_7, kernel-devel-matched 5.14.0-611.8.1.el9_7, kernel-64k-devel-matched 5.14.0-611.8.1.el9_7, +7 more
    fixed: vendor fix RHSA-2025:21469
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-124.20.1.el10_1, perf 6.12.0-124.20.1.el10_1, rtla 6.12.0-124.20.1.el10_1, python3-perf 6.12.0-124.20.1.el10_1, kernel-devel-matched 6.12.0-124.20.1.el10_1, kernel-64k-devel-matched 6.12.0-124.20.1.el10_1, +7 more
    fixed: vendor fix RHSA-2025:22854
  • 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
show 28 more
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) kernel-devel-matched 6.12.0-55.52.1.el10_0, kernel-64k-devel-matched 6.12.0-55.52.1.el10_0, kernel-debug-devel-matched 6.12.0-55.52.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.52.1.el10_0, kernel-zfcpdump-devel-matched 6.12.0-55.52.1.el10_0, kernel-64k-debug-devel-matched 6.12.0-55.52.1.el10_0, +3 more
    fixed: vendor fix RHSA-2026:0271
  • 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 5.14.0-570.129.1.el9_6, perf 5.14.0-570.129.1.el9_6, rtla 5.14.0-570.129.1.el9_6, python3-perf 5.14.0-570.129.1.el9_6, kernel-devel-matched 5.14.0-570.129.1.el9_6, kernel-64k-devel-matched 5.14.0-570.129.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:44385
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-611.8.1.el9_7, kernel-64k 5.14.0-611.8.1.el9_7, kernel-core 5.14.0-611.8.1.el9_7, kernel-tools 5.14.0-611.8.1.el9_7, kernel-modules 5.14.0-611.8.1.el9_7, kernel-64k-core 5.14.0-611.8.1.el9_7, +27 more
    fixed: vendor fix RHSA-2025:21469
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-124.20.1.el10_1, kernel-64k 6.12.0-124.20.1.el10_1, kernel-core 6.12.0-124.20.1.el10_1, kernel-tools 6.12.0-124.20.1.el10_1, kernel-modules 6.12.0-124.20.1.el10_1, kernel-64k-core 6.12.0-124.20.1.el10_1, +28 more
    fixed: vendor fix RHSA-2025:22854
  • 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, +14 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, +28 more
    fixed: vendor fix RHSA-2026:0535
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.52.1.el10_0, kernel-64k 6.12.0-55.52.1.el10_0, kernel-core 6.12.0-55.52.1.el10_0, kernel-tools 6.12.0-55.52.1.el10_0, kernel-modules 6.12.0-55.52.1.el10_0, kernel-64k-core 6.12.0-55.52.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:0271
  • 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, +28 more
    fixed: vendor fix RHSA-2026:0489
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.129.1.el9_6, kernel-64k 5.14.0-570.129.1.el9_6, kernel-core 5.14.0-570.129.1.el9_6, kernel-tools 5.14.0-570.129.1.el9_6, kernel-modules 5.14.0-570.129.1.el9_6, kernel-64k-core 5.14.0-570.129.1.el9_6, +27 more
    fixed: vendor fix RHSA-2026:44385
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-611.8.1.el9_7, kernel-debuginfo-common-s390x 5.14.0-611.8.1.el9_7, kernel-debuginfo-common-x86_64 5.14.0-611.8.1.el9_7, kernel-debuginfo-common-aarch64 5.14.0-611.8.1.el9_7, kernel-debuginfo-common-ppc64le 5.14.0-611.8.1.el9_7
    fixed: vendor fix RHSA-2025:21469
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-124.20.1.el10_1, kernel-debuginfo-common-s390x 6.12.0-124.20.1.el10_1, kernel-debuginfo-common-x86_64 6.12.0-124.20.1.el10_1, kernel-debuginfo-common-aarch64 6.12.0-124.20.1.el10_1, kernel-debuginfo-common-ppc64le 6.12.0-124.20.1.el10_1
    fixed: vendor fix RHSA-2025:22854
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) kernel-debuginfo-common-s390x 6.12.0-55.52.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.52.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.52.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.52.1.el10_0
    fixed: vendor fix RHSA-2026:0271
  • 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 5.14.0-611.8.1.el9_7, kernel-rt-64k 5.14.0-611.8.1.el9_7, kernel-rt-core 5.14.0-611.8.1.el9_7, kernel-rt-modules 5.14.0-611.8.1.el9_7, kernel-rt-64k-core 5.14.0-611.8.1.el9_7, kernel-rt-debug-core 5.14.0-611.8.1.el9_7, +14 more
    fixed: vendor fix RHSA-2025:21469
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-124.20.1.el10_1, kernel-rt-64k 6.12.0-124.20.1.el10_1, kernel-rt-core 6.12.0-124.20.1.el10_1, kernel-rt-modules 6.12.0-124.20.1.el10_1, kernel-rt-64k-core 6.12.0-124.20.1.el10_1, kernel-rt-debug-core 6.12.0-124.20.1.el10_1, +14 more
    fixed: vendor fix RHSA-2025:22854
  • 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 6.12.0-55.52.1.el10_0, kernel-rt-64k 6.12.0-55.52.1.el10_0, kernel-rt-core 6.12.0-55.52.1.el10_0, kernel-rt-modules 6.12.0-55.52.1.el10_0, kernel-rt-64k-core 6.12.0-55.52.1.el10_0, kernel-rt-debug-core 6.12.0-55.52.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:0271
  • 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 5.14.0-570.129.1.el9_6, kernel-rt-64k 5.14.0-570.129.1.el9_6, kernel-rt-core 5.14.0-570.129.1.el9_6, kernel-rt-modules 5.14.0-570.129.1.el9_6, kernel-rt-64k-core 5.14.0-570.129.1.el9_6, kernel-rt-debug-core 5.14.0-570.129.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:44385
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-611.8.1.el9_7, kernel-rt-core 5.14.0-611.8.1.el9_7, kernel-rt-modules 5.14.0-611.8.1.el9_7, kernel-rt-debug-core 5.14.0-611.8.1.el9_7, kernel-rt-modules-core 5.14.0-611.8.1.el9_7, kernel-rt-debug-modules 5.14.0-611.8.1.el9_7, +4 more
    fixed: vendor fix RHSA-2025:21469
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-124.20.1.el10_1, kernel-rt-core 6.12.0-124.20.1.el10_1, kernel-rt-modules 6.12.0-124.20.1.el10_1, kernel-rt-debug-core 6.12.0-124.20.1.el10_1, kernel-rt-modules-core 6.12.0-124.20.1.el10_1, kernel-rt-debug-modules 6.12.0-124.20.1.el10_1, +4 more
    fixed: vendor fix RHSA-2025:22854
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-kvm 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-kvm 5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-debug-core 5.14.0-284.152.1.rt14.437.el9_2, +6 more
    fixed: vendor fix RHSA-2026:0534
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.52.1.el10_0, kernel-rt-kvm 6.12.0-55.52.1.el10_0, kernel-rt-core 6.12.0-55.52.1.el10_0, kernel-rt-modules 6.12.0-55.52.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.52.1.el10_0, kernel-rt-debug-core 6.12.0-55.52.1.el10_0, +6 more
    fixed: vendor fix RHSA-2026:0271
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.106.1.el9_4, kernel-rt-kvm 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-kvm 5.14.0-427.106.1.el9_4, kernel-rt-debug-core 5.14.0-427.106.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:0489
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.129.1.el9_6, kernel-rt-kvm 5.14.0-570.129.1.el9_6, kernel-rt-core 5.14.0-570.129.1.el9_6, kernel-rt-modules 5.14.0-570.129.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.129.1.el9_6, kernel-rt-debug-core 5.14.0-570.129.1.el9_6, +6 more
    fixed: vendor fix RHSA-2026:44385
  • Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.52.1.el10_0, perf 6.12.0-55.52.1.el10_0, rtla 6.12.0-55.52.1.el10_0, python3-perf 6.12.0-55.52.1.el10_0 Red Hat Enterprise Linux BaseOS EUS (v. 10.0) perf-debuginfo 6.12.0-55.52.1.el10_0, libperf-debuginfo 6.12.0-55.52.1.el10_0, python3-perf-debuginfo 6.12.0-55.52.1.el10_0 Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.52.1.el10_0
    not affected: vulnerable code not present

2 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
total
Assessed
24 d ago

Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:A/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.