CVE-2025-40021

tracing: dynevent: Add a missing lockdown check on dynevent

CVE-2025-40021 is fixed in 86 products on 1 platform, first by ALAS2023-2025-1223, released October 14, 2025. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0021
10th percentile

In the Linux kernel, the following vulnerability has been resolved: tracing: dynevent: Add a missing lockdown check on dynevent Since dynamic_events interface on tracefs is compatible with kprobe_events and uprobe_events, it should also check the lockdown status and reject if it is set.

Where it's fixed

ProductFixed inFixReleased
Linux
bpftool · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
bpftool · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
bpftool · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
bpftool-debuginfo · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
bpftool6.12 · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
bpftool6.12-debuginfo · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
dtb-aarch64 · opensuse-leap 15.6 6.4.0-150600.23.81.1 SUSE-SU-2025:4422-1 Dec 17, 2025
dtb-aarch64 · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-64kb · opensuse-leap 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-64kb · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-64kb · sles 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-64kb · sles 15.7 6.4.0-150700.53.25.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-64kb · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-azure · opensuse-leap 15.6 6.4.0-150600.8.58.1 SUSE-SU-2025:4505-1 Dec 22, 2025
kernel-azure · sles 15.6 6.4.0-150600.8.58.1 SUSE-SU-2025:4505-1 Dec 22, 2025
kernel-azure · sles 15.7 6.4.0-150700.20.21.1 SUSE-SU-2025:4517-1 Dec 23, 2025
kernel-debug · opensuse-leap 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-debuginfo · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-debuginfo-common-aarch64 · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-debuginfo-common-x86_64 · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-default · opensuse-leap 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-default · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-default · sles 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-default · sles 15.7 6.4.0-150700.53.25.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-default · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-default-base · opensuse-leap 15.6 6.4.0-150600.23.81.3.150600.12.36.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-default-base · opensuse-leap 16.0 6.12.0-160000.8.1.160000.2.5 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-default-base · sles 15.6 6.4.0-150600.23.81.3.150600.12.36.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-default-base · sles 15.7 6.4.0-150700.53.25.1.150700.17.17.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-default-base · sles 16.0 6.12.0-160000.8.1.160000.2.5 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-devel · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-docs · opensuse-leap 15.6 6.4.0-150600.23.81.1 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-docs · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-docs · sles 15.6 6.4.0-150600.23.81.1 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-docs · sles 15.7 6.4.0-150700.53.25.2 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-docs · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-headers · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-kvmsmall · opensuse-leap 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-kvmsmall · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-kvmsmall · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-libbpf · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-libbpf-debuginfo · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-libbpf-devel · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-libbpf-static · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-livepatch-6.1.155-176.282 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-livepatch-6.12.53-69.119 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel-livepatch-SLE15-SP6-RT_Update_18 · sles 15.6 1-150600.1.3.1 SUSE-SU-2025:4521-1 Dec 24, 2025
kernel-livepatch-SLE15-SP6_Update_18 · sles 15.6 1-150600.13.3.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-livepatch-SLE15-SP7-RT_Update_7 · sles 15.7 1-150700.1.3.1 SUSE-SU-2025:4516-1 Dec 23, 2025
kernel-livepatch-SLE15-SP7_Update_7 · sles 15.7 1-150700.15.3.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-modules-extra · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-modules-extra-common · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-obs-build · opensuse-leap 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-obs-build · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-obs-build · sles 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-obs-build · sles 15.7 6.4.0-150700.53.25.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-obs-qa · opensuse-leap 15.6 6.4.0-150600.23.81.1 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-obs-qa · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-obs-qa · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-rt · opensuse-leap 15.6 6.4.0-150600.10.61.1 SUSE-SU-2025:4521-1 Dec 24, 2025
kernel-rt · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-rt_debug · opensuse-leap 15.6 6.4.0-150600.10.61.1 SUSE-SU-2025:4521-1 Dec 24, 2025
kernel-source · opensuse-leap 15.6 6.4.0-150600.23.81.2 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-source · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-source · sles 15.6 6.4.0-150600.23.81.2 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-source · sles 15.7 6.4.0-150700.53.25.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-source · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-source-azure · opensuse-leap 15.6 6.4.0-150600.8.58.1 SUSE-SU-2025:4505-1 Dec 22, 2025
kernel-source-azure · sles 15.6 6.4.0-150600.8.58.1 SUSE-SU-2025:4505-1 Dec 22, 2025
kernel-source-azure · sles 15.7 6.4.0-150700.20.21.1 SUSE-SU-2025:4517-1 Dec 23, 2025
kernel-source-rt · opensuse-leap 15.6 6.4.0-150600.10.61.1 SUSE-SU-2025:4521-1 Dec 24, 2025
kernel-syms · opensuse-leap 15.6 6.4.0-150600.23.81.1 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-syms · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-syms · sles 15.6 6.4.0-150600.23.81.1 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-syms · sles 15.7 6.4.0-150700.53.25.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-syms · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-syms-azure · opensuse-leap 15.6 6.4.0-150600.8.58.1 SUSE-SU-2025:4505-1 Dec 22, 2025
kernel-syms-azure · sles 15.6 6.4.0-150600.8.58.1 SUSE-SU-2025:4505-1 Dec 22, 2025
kernel-syms-azure · sles 15.7 6.4.0-150700.20.21.1 SUSE-SU-2025:4517-1 Dec 23, 2025
kernel-syms-rt · opensuse-leap 15.6 6.4.0-150600.10.61.1 SUSE-SU-2025:4521-1 Dec 24, 2025
kernel-tools · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-tools-debuginfo · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-tools-devel · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
kernel-uek · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-container · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-container · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-container-debug · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-container-debug · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-core · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-core · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-debug · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-debug · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-debug-core · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-debug-core · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-debug-devel · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-debug-devel · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-debug-modules · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-debug-modules · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-debug-modules-extra · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-debug-modules-extra · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-devel · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-devel · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-doc · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-doc · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-modules · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-modules · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-modules-extra · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek-modules-extra · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek64k · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek64k · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek64k-core · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek64k-core · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek64k-devel · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek64k-devel · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek64k-modules · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek64k-modules · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek64k-modules-extra · ol 8 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-uek64k-modules-extra · ol 9 0:5.15.0-315.196.5.1.el9uek ELSA-2025-28048 Dec 12, 2025
kernel-zfcpdump · opensuse-leap 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-zfcpdump · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-zfcpdump · sles 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-zfcpdump · sles 15.7 6.4.0-150700.53.25.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-zfcpdump · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel6.12 · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel6.12-debuginfo · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel6.12-debuginfo-common-aarch64 · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel6.12-debuginfo-common-x86_64 · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel6.12-devel · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel6.12-headers · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel6.12-libbpf · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel6.12-libbpf-debuginfo · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel6.12-libbpf-devel · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel6.12-libbpf-static · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel6.12-modules-extra · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel6.12-modules-extra-common · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel6.12-tools · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel6.12-tools-debuginfo · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
kernel6.12-tools-devel · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
linux · Debian 12.15 (bookworm) 6.1.158-1 DEBIAN-CVE-2025-40021 Oct 24, 2025
linux · Debian 13.5 (trixie) 6.12.57-1 DEBIAN-CVE-2025-40021 Oct 24, 2025
linux · Debian 14 6.16.10-1 DEBIAN-CVE-2025-40021 Oct 24, 2025
perf · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
perf-debuginfo · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
perf6.12 · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
perf6.12-debuginfo · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
python3-perf · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
python3-perf-debuginfo · amzn 2023 1:6.1.155-176.282.amzn2023 ALAS2023-2025-1223 Oct 14, 2025
python3-perf6.12 · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025
python3-perf6.12-debuginfo · amzn 2023 1:6.12.53-69.119.amzn2023 ALAS2023-2025-1254 Oct 27, 2025

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