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Fencer Vulns
high 7.8

CVE-2025-38250 json

Bluetooth: hci_core: Fix use-after-free in vhci_flush()

published 2025-07-09 16 mo ago modified 2026-10-15 24 d ago also EUVD-2025-20811

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 7%
public exploits
0
none known

Summary

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

Bluetooth: hci_core: Fix use-after-free in vhci_flush()

syzbot reported use-after-free in vhci_flush() without repro. [0]

From the splat, a thread close()d a vhci file descriptor while its device was being used by iotcl() on another thread.

Once the last fd refcnt is released, vhci_release() calls hci_unregister_dev(), hci_free_dev(), and kfree() for struct vhci_data, which is set to hci_dev->dev->driver_data.

The problem is that there is no synchronisation after unlinking hdev from hci_dev_list in hci_unregister_dev(). There might be another thread still accessing the hdev which was fetched before the unlink operation.

We can use SRCU for such synchronisation.

Let's run hci_dev_reset() under SRCU and wait for its completion in hci_unregister_dev().

Another option would be to restore hci_dev->destruct(), which was removed in commit 587ae086f6e4 ("Bluetooth: Remove unused hci-destruct cb"). However, this would not be a good solution, as we should not run hci_unregister_dev() while there are in-flight ioctl() requests, which could lead to another data-race KCSAN splat.

Note that other drivers seem to have the same problem, for exmaple, virtbt_remove().

[0]: BUG: KASAN: slab-use-after-free in skb_queue_empty_lockless include/linux/skbuff.h:1891 [inline] BUG: KASAN: slab-use-after-free in skb_queue_purge_reason+0x99/0x360 net/core/skbuff.c:3937 Read of size 8 at addr ffff88807cb8d858 by task syz.1.219/6718

CPU: 1 UID: 0 PID: 6718 Comm: syz.1.219 Not tainted 6.16.0-rc1-syzkaller-00196-g08207f42d3ff #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: <TASK> dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:408 [inline] print_report+0xd2/0x2b0 mm/kasan/report.c:521 kasan_report+0x118/0x150 mm/kasan/report.c:634 skb_queue_empty_lockless include/linux/skbuff.h:1891 [inline] skb_queue_purge_reason+0x99/0x360 net/core/skbuff.c:3937 skb_queue_purge include/linux/skbuff.h:3368 [inline] vhci_flush+0x44/0x50 drivers/bluetooth/hci_vhci.c:69 hci_dev_do_reset net/bluetooth/hci_core.c:552 [inline] hci_dev_reset+0x420/0x5c0 net/bluetooth/hci_core.c:592 sock_do_ioctl+0xd9/0x300 net/socket.c:1190 sock_ioctl+0x576/0x790 net/socket.c:1311 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+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcf5b98e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcf5c7b9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fcf5bbb6160 RCX: 00007fcf5b98e929 RDX: 0000000000000000 RSI: 00000000400448cb RDI: 0000000000000009 RBP: 00007fcf5ba10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fcf5bbb6160 R15: 00007ffd6353d528 </TASK>

Allocated by task 6535: 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] vhci_open+0x57/0x360 drivers/bluetooth/hci_vhci.c:635 misc_open+0x2bc/0x330 drivers/char/misc.c:161 chrdev_open+0x4c9/0x5e0 fs/char_dev.c:414 do_dentry_open+0xdf0/0x1970 fs/open.c:964 vfs_open+0x3b/0x340 fs/open.c:1094 do_open fs/namei.c:3887 [inline] path_openat+0x2ee5/0x3830 fs/name ---truncated---

Patch / fix

  • Linux Linux 5.10.259, 5.15.209, 6.1.167, 6.6.97, 6.12.36, 6.15.5, 6.16
  • linux Debian 12 6.1.170-1
  • linux Debian 14, Debian 13 6.12.37-1

debian advisories DEBIAN-CVE-2025-38250

  • linux Ubuntu 22.04 LTS 5.15.0-186.196
  • linux Ubuntu 24.04 LTS 6.8.0-100.100
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1112.119
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1046.49
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1112.122
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1047.50
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1108.114
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1043.48

ubuntu advisories UBUNTU-CVE-2025-38250

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 10.0 6.12.0-55.28.1.el10_0
  • rv RHEL 10.0 6.12.0-55.28.1.el10_0
  • perf RHEL 10.0 6.12.0-55.28.1.el10_0
  • rtla RHEL 10.0 6.12.0-55.28.1.el10_0
  • libperf RHEL 10.0 6.12.0-55.28.1.el10_0
  • kernel-rt RHEL 10.0 6.12.0-55.28.1.el10_0
  • kernel-64k RHEL 10.0 6.12.0-55.28.1.el10_0
  • kernel-core RHEL 10.0 6.12.0-55.28.1.el10_0

red hat advisories RHSA-2025:15670RHSA-2025:15668RHSA-2025:15658RHSA-2025:15227RHSA-2025:15224RHSA-2025:15035

  • kernel-rt Real Time Module 15 SP7 6.4.0-150700.7.72.1
  • kernel-syms-rt Real Time Module 15 SP7 6.4.0-150700.7.72.1
  • kernel-source-rt Real Time Module 15 SP7 6.4.0-150700.7.72.1
  • kernel-64kb SLE Module for Basesystem 15 SP7 6.4.0-150700.53.78.1
  • kernel-syms SLE Module for Development Tools 15 SP7 6.4.0-150700.53.78.1
  • kernel-azure SLE Module for Public Cloud 15 SP7 6.4.0-150700.53.78.1
  • kernel-source SLE Module for Development Tools 15 SP7, SLE Module for Basesystem 15 SP7 6.4.0-150700.53.78.1
  • kernel-default SLE Workstation Extension 15 SP7, SLE Module for Legacy 15 SP7, SLE Module for Basesystem 15 SP7 +2 more 6.4.0-150700.53.78.1

suse advisories SUSE-SU-2026:3810-1SUSE-SU-2026:3790-1SUSE-SU-2026:23244-1SUSE-SU-2026:23241-1SUSE-SU-2026:23194-1SUSE-SU-2026:23193-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.37.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.37.1

opensuse advisories openSUSE-SU-2026:21555-1

  • kernel AlmaLinux 8 4.18.0-553.70.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.70.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.70.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.70.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.70.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.70.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.70.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.70.1.el8_10

almalinux advisories ALSA-2025:13960ALSA-2025:13961ALSA-2025:13962ALSA-2025:14009

  • kernel Azure Linux 3.0 6.6.104.2-1

azure linux advisories AZL-64847

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-2025-38250 updated cvss 7.3

kernel: Bluetooth: hci_core: Fix use-after-free in vhci_flush()

  • 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
    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 5.14.0-427.88.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.88.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.88.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.88.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.88.1.el9_4
    fixed: vendor fix RHSA-2025:15668
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-570.35.1.el9_6, perf 5.14.0-570.35.1.el9_6, rtla 5.14.0-570.35.1.el9_6, python3-perf 5.14.0-570.35.1.el9_6, kernel-devel-matched 5.14.0-570.35.1.el9_6, kernel-64k-devel-matched 5.14.0-570.35.1.el9_6, +7 more
    fixed: vendor fix RHSA-2025:13962
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-55.28.1.el10_0, perf 6.12.0-55.28.1.el10_0, rtla 6.12.0-55.28.1.el10_0, python3-perf 6.12.0-55.28.1.el10_0, kernel-devel-matched 6.12.0-55.28.1.el10_0, kernel-64k-devel-matched 6.12.0-55.28.1.el10_0, +7 more
    fixed: vendor fix RHSA-2025:14009
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.146.1.el9_0, kernel-devel-matched 5.14.0-70.146.1.el9_0, kernel-debug-devel-matched 5.14.0-70.146.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.146.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.146.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.146.1.el9_0, +2 more
    fixed: vendor fix RHSA-2025:15670
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.136.1.el9_2, rtla 5.14.0-284.136.1.el9_2, kernel-devel-matched 5.14.0-284.136.1.el9_2, kernel-64k-devel-matched 5.14.0-284.136.1.el9_2, kernel-debug-devel-matched 5.14.0-284.136.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.136.1.el9_2, +5 more
    fixed: vendor fix RHSA-2025:15227
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.88.1.el9_4, perf 5.14.0-427.88.1.el9_4, rtla 5.14.0-427.88.1.el9_4, kernel-devel-matched 5.14.0-427.88.1.el9_4, kernel-64k-devel-matched 5.14.0-427.88.1.el9_4, kernel-debug-devel-matched 5.14.0-427.88.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:15668
show 29 more
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.70.1.el8_10, kernel 4.18.0-553.70.1.el8_10, bpftool 4.18.0-553.70.1.el8_10, kernel-core 4.18.0-553.70.1.el8_10, kernel-tools 4.18.0-553.70.1.el8_10, python3-perf 4.18.0-553.70.1.el8_10, +15 more
    fixed: vendor fix RHSA-2025:13960
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-570.35.1.el9_6, kernel-64k 5.14.0-570.35.1.el9_6, kernel-core 5.14.0-570.35.1.el9_6, kernel-tools 5.14.0-570.35.1.el9_6, kernel-modules 5.14.0-570.35.1.el9_6, kernel-64k-core 5.14.0-570.35.1.el9_6, +27 more
    fixed: vendor fix RHSA-2025:13962
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-55.28.1.el10_0, kernel-64k 6.12.0-55.28.1.el10_0, kernel-core 6.12.0-55.28.1.el10_0, kernel-tools 6.12.0-55.28.1.el10_0, kernel-modules 6.12.0-55.28.1.el10_0, kernel-64k-core 6.12.0-55.28.1.el10_0, +27 more
    fixed: vendor fix RHSA-2025:14009
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.165.1.el8_2, kernel 4.18.0-193.165.1.el8_2, bpftool 4.18.0-193.165.1.el8_2, kernel-core 4.18.0-193.165.1.el8_2, kernel-tools 4.18.0-193.165.1.el8_2, python3-perf 4.18.0-193.165.1.el8_2, +8 more
    fixed: vendor fix RHSA-2025:14742
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.170.1.el8_4, kernel 4.18.0-305.170.1.el8_4, bpftool 4.18.0-305.170.1.el8_4, kernel-core 4.18.0-305.170.1.el8_4, kernel-tools 4.18.0-305.170.1.el8_4, python3-perf 4.18.0-305.170.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:15035
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.158.1.el8_6, kernel 4.18.0-372.158.1.el8_6, bpftool 4.18.0-372.158.1.el8_6, kernel-core 4.18.0-372.158.1.el8_6, kernel-tools 4.18.0-372.158.1.el8_6, python3-perf 4.18.0-372.158.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.158.1.el8_6, kernel 4.18.0-372.158.1.el8_6, bpftool 4.18.0-372.158.1.el8_6, kernel-core 4.18.0-372.158.1.el8_6, kernel-tools 4.18.0-372.158.1.el8_6, python3-perf 4.18.0-372.158.1.el8_6, +15 more
    fixed: vendor fix RHSA-2025:14692
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.108.1.el8_8, kernel 4.18.0-477.108.1.el8_8, bpftool 4.18.0-477.108.1.el8_8, kernel-core 4.18.0-477.108.1.el8_8, kernel-tools 4.18.0-477.108.1.el8_8, python3-perf 4.18.0-477.108.1.el8_8, +9 more
    fixed: vendor fix RHSA-2025:14985
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.146.1.el9_0, bpftool 5.14.0-70.146.1.el9_0, kernel-core 5.14.0-70.146.1.el9_0, kernel-tools 5.14.0-70.146.1.el9_0, python3-perf 5.14.0-70.146.1.el9_0, kernel-modules 5.14.0-70.146.1.el9_0, +14 more
    fixed: vendor fix RHSA-2025:15670
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.136.1.el9_2, kernel 5.14.0-284.136.1.el9_2, kernel-64k 5.14.0-284.136.1.el9_2, kernel-core 5.14.0-284.136.1.el9_2, kernel-tools 5.14.0-284.136.1.el9_2, python3-perf 5.14.0-284.136.1.el9_2, +28 more
    fixed: vendor fix RHSA-2025:15227
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.88.1.el9_4, kernel 5.14.0-427.88.1.el9_4, kernel-64k 5.14.0-427.88.1.el9_4, kernel-core 5.14.0-427.88.1.el9_4, kernel-tools 5.14.0-427.88.1.el9_4, python3-perf 5.14.0-427.88.1.el9_4, +28 more
    fixed: vendor fix RHSA-2025:15668
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.170.1.el8_4, kernel 4.18.0-305.170.1.el8_4, bpftool 4.18.0-305.170.1.el8_4, kernel-core 4.18.0-305.170.1.el8_4, kernel-tools 4.18.0-305.170.1.el8_4, python3-perf 4.18.0-305.170.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:15035
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.158.1.el8_6, kernel 4.18.0-372.158.1.el8_6, bpftool 4.18.0-372.158.1.el8_6, kernel-core 4.18.0-372.158.1.el8_6, kernel-tools 4.18.0-372.158.1.el8_6, python3-perf 4.18.0-372.158.1.el8_6, +8 more
    fixed: vendor fix RHSA-2025:14692
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.108.1.el8_8, kernel 4.18.0-477.108.1.el8_8, bpftool 4.18.0-477.108.1.el8_8, kernel-core 4.18.0-477.108.1.el8_8, kernel-tools 4.18.0-477.108.1.el8_8, python3-perf 4.18.0-477.108.1.el8_8, +8 more
    fixed: vendor fix RHSA-2025:14985
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-570.35.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.35.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.35.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.35.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.35.1.el9_6
    fixed: vendor fix RHSA-2025:13962
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-55.28.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.28.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.28.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.28.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.28.1.el10_0
    fixed: vendor fix RHSA-2025:14009
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.70.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.70.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.70.1.el8_10
    fixed: vendor fix RHSA-2025:13960
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.70.1.rt7.411.el8_10, kernel-rt-kvm 4.18.0-553.70.1.rt7.411.el8_10, kernel-rt-core 4.18.0-553.70.1.rt7.411.el8_10, kernel-rt-modules 4.18.0-553.70.1.rt7.411.el8_10, kernel-rt-debug-kvm 4.18.0-553.70.1.rt7.411.el8_10, kernel-rt-debug-core 4.18.0-553.70.1.rt7.411.el8_10, +4 more
    fixed: vendor fix RHSA-2025:13961
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-kvm 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-core 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-modules 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-debug-kvm 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-debug-core 5.14.0-70.146.1.rt21.218.el9_0, +4 more
    fixed: vendor fix RHSA-2025:15658
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-570.35.1.el9_6, kernel-rt-64k 5.14.0-570.35.1.el9_6, kernel-rt-core 5.14.0-570.35.1.el9_6, kernel-rt-modules 5.14.0-570.35.1.el9_6, kernel-rt-64k-core 5.14.0-570.35.1.el9_6, kernel-rt-debug-core 5.14.0-570.35.1.el9_6, +14 more
    fixed: vendor fix RHSA-2025:13962
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-55.28.1.el10_0, kernel-rt-64k 6.12.0-55.28.1.el10_0, kernel-rt-core 6.12.0-55.28.1.el10_0, kernel-rt-modules 6.12.0-55.28.1.el10_0, kernel-rt-64k-core 6.12.0-55.28.1.el10_0, kernel-rt-debug-core 6.12.0-55.28.1.el10_0, +14 more
    fixed: vendor fix RHSA-2025:14009
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-core 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-modules 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-debug-core 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-debug-modules 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-modules-extra 5.14.0-70.146.1.rt21.218.el9_0, +2 more
    fixed: vendor fix RHSA-2025:15658
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-core 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-modules 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-debug-core 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-modules-core 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-debug-modules 5.14.0-284.136.1.rt14.421.el9_2, +4 more
    fixed: vendor fix RHSA-2025:15224
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.88.1.el9_4, kernel-rt-core 5.14.0-427.88.1.el9_4, kernel-rt-modules 5.14.0-427.88.1.el9_4, kernel-rt-debug-core 5.14.0-427.88.1.el9_4, kernel-rt-modules-core 5.14.0-427.88.1.el9_4, kernel-rt-debug-modules 5.14.0-427.88.1.el9_4, +4 more
    fixed: vendor fix RHSA-2025:15668
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-570.35.1.el9_6, kernel-rt-kvm 5.14.0-570.35.1.el9_6, kernel-rt-core 5.14.0-570.35.1.el9_6, kernel-rt-modules 5.14.0-570.35.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.35.1.el9_6, kernel-rt-debug-core 5.14.0-570.35.1.el9_6, +6 more
    fixed: vendor fix RHSA-2025:13962
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-55.28.1.el10_0, kernel-rt-kvm 6.12.0-55.28.1.el10_0, kernel-rt-core 6.12.0-55.28.1.el10_0, kernel-rt-modules 6.12.0-55.28.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.28.1.el10_0, kernel-rt-debug-core 6.12.0-55.28.1.el10_0, +6 more
    fixed: vendor fix RHSA-2025:14009
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-kvm 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-core 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-modules 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-debug-kvm 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-debug-core 5.14.0-284.136.1.rt14.421.el9_2, +6 more
    fixed: vendor fix RHSA-2025:15224
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.88.1.el9_4, kernel-rt-kvm 5.14.0-427.88.1.el9_4, kernel-rt-core 5.14.0-427.88.1.el9_4, kernel-rt-modules 5.14.0-427.88.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.88.1.el9_4, kernel-rt-debug-core 5.14.0-427.88.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:15668
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.70.1.rt7.411.el8_10, kernel-rt-core 4.18.0-553.70.1.rt7.411.el8_10, kernel-rt-modules 4.18.0-553.70.1.rt7.411.el8_10, kernel-rt-debug-core 4.18.0-553.70.1.rt7.411.el8_10, kernel-rt-debug-modules 4.18.0-553.70.1.rt7.411.el8_10, kernel-rt-modules-extra 4.18.0-553.70.1.rt7.411.el8_10, +2 more
    fixed: vendor fix RHSA-2025:13961
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-doc 5.14.0-70.146.1.el9_0 Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-doc 5.14.0-427.88.1.el9_4
    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 ICSA-26-295-16 updated cvss 7.8

Siemens SIMATIC S7-1500 TM MFP

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
    affected: mitigation, no fix available

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
24 d ago

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).

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
NVD 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
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Classification

Weakness
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.