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high 7.8

CVE-2025-39981 json

Bluetooth: MGMT: Fix possible UAFs

published last yr. modified 21d ago also EUVD-2025-34591

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 4%
public exploits
0
none known

Summary

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

Bluetooth: MGMT: Fix possible UAFs

This attemps to fix possible UAFs caused by struct mgmt_pending being freed while still being processed like in the following trace, in order to fix mgmt_pending_valid is introduce and use to check if the mgmt_pending hasn't been removed from the pending list, on the complete callbacks it is used to check and in addtion remove the cmd from the list while holding mgmt_pending_lock to avoid TOCTOU problems since if the cmd is left on the list it can still be accessed and freed.

BUG: KASAN: slab-use-after-free in mgmt_add_adv_patterns_monitor_sync+0x35/0x50 net/bluetooth/mgmt.c:5223 Read of size 8 at addr ffff8880709d4dc0 by task kworker/u11:0/55

CPU: 0 UID: 0 PID: 55 Comm: kworker/u11:0 Not tainted 6.16.4 #2 PREEMPT(full) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 Workqueue: hci0 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/0x240 mm/kasan/report.c:482 kasan_report+0x118/0x150 mm/kasan/report.c:595 mgmt_add_adv_patterns_monitor_sync+0x35/0x50 net/bluetooth/mgmt.c:5223 hci_cmd_sync_work+0x210/0x3a0 net/bluetooth/hci_sync.c:332 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x711/0x8a0 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-6.16.4/arch/x86/entry/entry_64.S:245 </TASK>

Allocated by task 12210: 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:4364 kmalloc_noprof include/linux/slab.h:905 [inline] kzalloc_noprof include/linux/slab.h:1039 [inline] mgmt_pending_new+0x65/0x1e0 net/bluetooth/mgmt_util.c:269 mgmt_pending_add+0x35/0x140 net/bluetooth/mgmt_util.c:296 __add_adv_patterns_monitor+0x130/0x200 net/bluetooth/mgmt.c:5247 add_adv_patterns_monitor+0x214/0x360 net/bluetooth/mgmt.c:5364 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:714 [inline] __sock_sendmsg+0x219/0x270 net/socket.c:729 sock_write_iter+0x258/0x330 net/socket.c:1133 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 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 12221: 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:4648 [inline] kfree+0x18e/0x440 mm/slub.c:4847 mgmt_pending_free net/bluetooth/mgmt_util.c:311 [inline] mgmt_pending_foreach+0x30d/0x380 net/bluetooth/mgmt_util.c:257 __mgmt_power_off+0x169/0x350 net/bluetooth/mgmt.c:9444 hci_dev_close_sync+0x754/0x1330 net/bluetooth/hci_sync.c:5290 hci_dev_do_close net/bluetooth/hci_core.c:501 [inline] hci_dev_close+0x108/0x200 net/bluetooth/hci_core.c:526 sock_do_ioctl+0xd9/0x300 net/socket.c:1192 sock_ioctl+0x576/0x790 net/socket.c:1313 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf ---truncated---

Patch / fix

  • Linux Linux 6.6.140, 6.12.59, 6.16.10, 6.17
  • linux Debian 13 6.12.63-1
  • linux Debian 14 6.16.10-1

debian advisories DEBIAN-CVE-2025-39981

  • 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-2025-39981

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-rt RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-kvm RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-core RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-modules RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-debug-kvm RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-debug-core RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-debug-modules RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-modules-extra RHEL 8 4.18.0-553.126.1.rt7.467.el8_10

red hat advisories RHSA-2026:21745RHSA-2026:21706RHSA-2026:10108RHSA-2026:9644RHSA-2026:9512RHSA-2026:0457

  • kernel-64kb SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS, SLE High Performance Computing 15 SP5-ESPOS 5.14.21-150500.55.127.1
  • kernel-syms SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 5.14.21-150500.55.127.1
  • kernel-source SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 5.14.21-150500.55.127.1
  • kernel-default SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +3 more 5.14.21-150500.55.127.1
  • kernel-obs-build SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 5.14.21-150500.55.127.1
  • kernel-default-base SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 5.14.21-150500.55.127.1.150500.6.61.1
  • 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

suse advisories SUSE-SU-2025:4320-1SUSE-SU-2025:4301-1SUSE-SU-2025:21080-1SUSE-SU-2025:21147-1SUSE-SU-2025:21180-1SUSE-SU-2026:20561-1

  • 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 AlmaLinux 8 4.18.0-553.126.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.126.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.126.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.126.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.126.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.126.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.126.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.126.1.el8_10

almalinux advisories ALSA-2026:21706ALSA-2026:21745ALSA-2025:22854ALSA-2025:22405

  • kernel-rt Rocky Linux 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel Rocky Linux 8 4.18.0-553.126.1.el8_10
  • kernel Rocky Linux 10 6.12.0-124.20.1.el10_1
  • kernel Rocky Linux 9 5.14.0-611.11.1.el9_7

rocky linux advisories RLSA-2026:21745RLSA-2026:21706RLSA-2025:22854RLSA-2025:22405

  • kernel Azure Linux 3.0 6.6.141.1-1

azure linux advisories AZL-68501

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

Is CVE-2025-39981 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2025-39981 updated cvss 7.3

kernel: Bluetooth: MGMT: Fix possible UAFs

  • 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 “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.”
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.121.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.121.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.121.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.121.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.121.1.el9_4
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:10108
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.77.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.77.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.77.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.77.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.77.1.el9_6
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:0457
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-611.11.1.el9_7, perf 5.14.0-611.11.1.el9_7, rtla 5.14.0-611.11.1.el9_7, python3-perf 5.14.0-611.11.1.el9_7, kernel-devel-matched 5.14.0-611.11.1.el9_7, kernel-64k-devel-matched 5.14.0-611.11.1.el9_7, +7 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2025:22405
  • 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 “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2025:22854
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.166.1.el9_2, rtla 5.14.0-284.166.1.el9_2, kernel-devel-matched 5.14.0-284.166.1.el9_2, kernel-64k-devel-matched 5.14.0-284.166.1.el9_2, kernel-debug-devel-matched 5.14.0-284.166.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.166.1.el9_2, +5 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:9644
  • 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 “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:0271
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.121.1.el9_4, perf 5.14.0-427.121.1.el9_4, rtla 5.14.0-427.121.1.el9_4, kernel-devel-matched 5.14.0-427.121.1.el9_4, kernel-64k-devel-matched 5.14.0-427.121.1.el9_4, kernel-debug-devel-matched 5.14.0-427.121.1.el9_4, +6 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:10108
show 27 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.77.1.el9_6, perf 5.14.0-570.77.1.el9_6, rtla 5.14.0-570.77.1.el9_6, python3-perf 5.14.0-570.77.1.el9_6, kernel-devel-matched 5.14.0-570.77.1.el9_6, kernel-64k-devel-matched 5.14.0-570.77.1.el9_6, +7 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:0457
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.126.1.el8_10, kernel 4.18.0-553.126.1.el8_10, bpftool 4.18.0-553.126.1.el8_10, kernel-core 4.18.0-553.126.1.el8_10, kernel-tools 4.18.0-553.126.1.el8_10, python3-perf 4.18.0-553.126.1.el8_10, +15 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:21706
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-611.11.1.el9_7, kernel-64k 5.14.0-611.11.1.el9_7, kernel-core 5.14.0-611.11.1.el9_7, kernel-tools 5.14.0-611.11.1.el9_7, kernel-modules 5.14.0-611.11.1.el9_7, kernel-64k-core 5.14.0-611.11.1.el9_7, +27 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2025:22405
  • 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 “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2025:22854
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.166.1.el9_2, kernel 5.14.0-284.166.1.el9_2, kernel-64k 5.14.0-284.166.1.el9_2, kernel-core 5.14.0-284.166.1.el9_2, kernel-tools 5.14.0-284.166.1.el9_2, python3-perf 5.14.0-284.166.1.el9_2, +28 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:9644
  • 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 “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:0271
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.121.1.el9_4, kernel 5.14.0-427.121.1.el9_4, kernel-64k 5.14.0-427.121.1.el9_4, kernel-core 5.14.0-427.121.1.el9_4, kernel-tools 5.14.0-427.121.1.el9_4, python3-perf 5.14.0-427.121.1.el9_4, +28 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:10108
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.77.1.el9_6, kernel-64k 5.14.0-570.77.1.el9_6, kernel-core 5.14.0-570.77.1.el9_6, kernel-tools 5.14.0-570.77.1.el9_6, kernel-modules 5.14.0-570.77.1.el9_6, kernel-64k-core 5.14.0-570.77.1.el9_6, +27 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:0457
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-611.11.1.el9_7, kernel-debuginfo-common-s390x 5.14.0-611.11.1.el9_7, kernel-debuginfo-common-x86_64 5.14.0-611.11.1.el9_7, kernel-debuginfo-common-aarch64 5.14.0-611.11.1.el9_7, kernel-debuginfo-common-ppc64le 5.14.0-611.11.1.el9_7
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2025:22405
  • 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 “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” 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 “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:0271
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.126.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.126.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.126.1.el8_10
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:21706
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-kvm 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-core 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-modules 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-debug-kvm 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-debug-core 4.18.0-553.126.1.rt7.467.el8_10, +4 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:21745
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-611.11.1.el9_7, kernel-rt-64k 5.14.0-611.11.1.el9_7, kernel-rt-core 5.14.0-611.11.1.el9_7, kernel-rt-modules 5.14.0-611.11.1.el9_7, kernel-rt-64k-core 5.14.0-611.11.1.el9_7, kernel-rt-debug-core 5.14.0-611.11.1.el9_7, +14 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2025:22405
  • 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 “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2025:22854
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.166.1.rt14.451.el9_2, kernel-rt-core 5.14.0-284.166.1.rt14.451.el9_2, kernel-rt-modules 5.14.0-284.166.1.rt14.451.el9_2, kernel-rt-debug-core 5.14.0-284.166.1.rt14.451.el9_2, kernel-rt-modules-core 5.14.0-284.166.1.rt14.451.el9_2, kernel-rt-debug-modules 5.14.0-284.166.1.rt14.451.el9_2, +4 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:9512
  • 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 “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:0271
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.121.1.el9_4, kernel-rt-core 5.14.0-427.121.1.el9_4, kernel-rt-modules 5.14.0-427.121.1.el9_4, kernel-rt-debug-core 5.14.0-427.121.1.el9_4, kernel-rt-modules-core 5.14.0-427.121.1.el9_4, kernel-rt-debug-modules 5.14.0-427.121.1.el9_4, +4 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:10108
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.77.1.el9_6, kernel-rt-64k 5.14.0-570.77.1.el9_6, kernel-rt-core 5.14.0-570.77.1.el9_6, kernel-rt-modules 5.14.0-570.77.1.el9_6, kernel-rt-64k-core 5.14.0-570.77.1.el9_6, kernel-rt-debug-core 5.14.0-570.77.1.el9_6, +14 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:0457
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-611.11.1.el9_7, kernel-rt-core 5.14.0-611.11.1.el9_7, kernel-rt-modules 5.14.0-611.11.1.el9_7, kernel-rt-debug-core 5.14.0-611.11.1.el9_7, kernel-rt-modules-core 5.14.0-611.11.1.el9_7, kernel-rt-debug-modules 5.14.0-611.11.1.el9_7, +4 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2025:22405
  • 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 “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2025:22854
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.166.1.rt14.451.el9_2, kernel-rt-kvm 5.14.0-284.166.1.rt14.451.el9_2, kernel-rt-core 5.14.0-284.166.1.rt14.451.el9_2, kernel-rt-modules 5.14.0-284.166.1.rt14.451.el9_2, kernel-rt-debug-kvm 5.14.0-284.166.1.rt14.451.el9_2, kernel-rt-debug-core 5.14.0-284.166.1.rt14.451.el9_2, +6 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:9512
  • 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 “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:0271
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.121.1.el9_4, kernel-rt-kvm 5.14.0-427.121.1.el9_4, kernel-rt-core 5.14.0-427.121.1.el9_4, kernel-rt-modules 5.14.0-427.121.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.121.1.el9_4, kernel-rt-debug-core 5.14.0-427.121.1.el9_4, +6 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:10108
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.77.1.el9_6, kernel-rt-kvm 5.14.0-570.77.1.el9_6, kernel-rt-core 5.14.0-570.77.1.el9_6, kernel-rt-modules 5.14.0-570.77.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.77.1.el9_6, kernel-rt-debug-core 5.14.0-570.77.1.el9_6, +6 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:0457
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-core 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-modules 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-debug-core 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-debug-modules 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-modules-extra 4.18.0-553.126.1.rt7.467.el8_10, +2 more
    fixed: vendor fix “Ensure Bluetooth management interfaces are hardened or, if unused, disabled.” RHSA-2026:21745
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 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 Red Hat Enterprise Linux Real Time 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
    not affected: vulnerable code not present

1 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
25d ago

Exploit prediction

0.15% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux

Classification

Technology feeds

References

Sources

Fencer Intel 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.