CVE-2025-40203
linux: In the Linux kernel, the following vulnerability has been resolved: listmount: don't call path_put() under namespace...
CVE-2025-40203 is fixed in 35 products on 1 platform, first by DEBIAN-CVE-2025-40203, released November 12, 2025. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0015
4th percentile
In the Linux kernel, the following vulnerability has been resolved: listmount: don't call path_put() under namespace semaphore Massage listmount() and make sure we don't call path_put() under the namespace semaphore. If we put the last reference we're fscked.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool6.12 · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| bpftool6.12-debuginfo · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| dtb-aarch64 · opensuse-leap 16.0 | 6.12.0-160000.8.1 | OPENSUSE-SU-2025:20172-1 | Dec 19, 2025 |
| kernel-64kb · opensuse-leap 16.0 | 6.12.0-160000.8.1 | OPENSUSE-SU-2025:20172-1 | Dec 19, 2025 |
| kernel-64kb · sles 16.0 | 6.12.0-160000.8.1 | SUSE-SU-2026:20015-1 | Dec 19, 2025 |
| kernel-default · opensuse-leap 16.0 | 6.12.0-160000.8.1 | OPENSUSE-SU-2025:20172-1 | Dec 19, 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 16.0 | 6.12.0-160000.8.1.160000.2.5 | OPENSUSE-SU-2025:20172-1 | Dec 19, 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-docs · opensuse-leap 16.0 | 6.12.0-160000.8.1 | OPENSUSE-SU-2025:20172-1 | Dec 19, 2025 |
| kernel-docs · sles 16.0 | 6.12.0-160000.8.1 | SUSE-SU-2026:20015-1 | Dec 19, 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-livepatch-6.12.55-74.119 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel-obs-build · opensuse-leap 16.0 | 6.12.0-160000.8.1 | OPENSUSE-SU-2025:20172-1 | Dec 19, 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 16.0 | 6.12.0-160000.8.1 | OPENSUSE-SU-2025:20172-1 | Dec 19, 2025 |
| kernel-source · opensuse-leap 16.0 | 6.12.0-160000.8.1 | OPENSUSE-SU-2025:20172-1 | Dec 19, 2025 |
| kernel-source · sles 16.0 | 6.12.0-160000.8.1 | SUSE-SU-2026:20015-1 | Dec 19, 2025 |
| kernel-syms · opensuse-leap 16.0 | 6.12.0-160000.8.1 | OPENSUSE-SU-2025:20172-1 | Dec 19, 2025 |
| kernel-syms · sles 16.0 | 6.12.0-160000.8.1 | SUSE-SU-2026:20015-1 | Dec 19, 2025 |
| kernel-zfcpdump · opensuse-leap 16.0 | 6.12.0-160000.8.1 | OPENSUSE-SU-2025:20172-1 | Dec 19, 2025 |
| kernel-zfcpdump · sles 16.0 | 6.12.0-160000.8.1 | SUSE-SU-2026:20015-1 | Dec 19, 2025 |
| kernel6.12 · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel6.12-debuginfo · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel6.12-debuginfo-common-aarch64 · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel6.12-debuginfo-common-x86_64 · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel6.12-devel · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel6.12-headers · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel6.12-libbpf · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel6.12-libbpf-debuginfo · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel6.12-libbpf-devel · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel6.12-libbpf-static · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel6.12-modules-extra · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel6.12-modules-extra-common · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel6.12-tools · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel6.12-tools-debuginfo · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| kernel6.12-tools-devel · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| linux · Debian 13.5 (trixie) | 6.12.57-1 | DEBIAN-CVE-2025-40203 | Nov 12, 2025 |
| linux · Debian 14 | 6.17.6-1 | DEBIAN-CVE-2025-40203 | Nov 12, 2025 |
| perf6.12 · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| perf6.12-debuginfo · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| python3-perf6.12 · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
| python3-perf6.12-debuginfo · amzn 2023 | 1:6.12.55-74.119.amzn2023 | ALAS2023-2025-1316 | Dec 8, 2025 |
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