CVE-2025-40253
s390/ctcm: Fix double-kfree
CVE-2025-40253 is fixed in 18 products on 1 platform, first by DEBIAN-CVE-2025-40253, released December 4, 2025. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
8.8
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0032
25th percentile
In the Linux kernel, the following vulnerability has been resolved: s390/ctcm: Fix double-kfree The function 'mpc_rcvd_sweep_req(mpcginfo)' is called conditionally from function 'ctcmpc_unpack_skb'. It frees passed mpcginfo. After that a call to function 'kfree' in function 'ctcmpc_unpack_skb' frees it again. Remove 'kfree' call in function 'mpc_rcvd_sweep_req(mpcginfo)'. Bug detected by the clang static analyzer.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| dtb-aarch64 · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| dtb-aarch64 · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-64kb · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-64kb · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-64kb · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-azure · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-azure · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-debug · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-default · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-default · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-default · sles 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-default · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-default-base · opensuse-leap 15.6 | 6.4.0-150600.23.92.1.150600.12.42.2 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-default-base · opensuse-leap 16.0 | 6.12.0-160000.27.1.160000.2.8 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-default-base · sles 15.6 | 6.4.0-150600.23.92.1.150600.12.42.2 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-default-base · sles 15.7 | 6.4.0-150700.53.34.1.150700.17.23.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-docs · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-docs · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-docs · sles 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-docs · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-kvmsmall · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-kvmsmall · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-livepatch-SLE15-SP6_Update_21 · sles 15.6 | 1-150600.13.5.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-livepatch-SLE15-SP7-RT_Update_10 · sles 15.7 | 1-150700.1.3.1 | SUSE-SU-2026:0962-1 | Mar 23, 2026 |
| kernel-livepatch-SLE15-SP7_Update_10 · sles 15.7 | 1-150700.15.3.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-obs-build · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-obs-build · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-obs-build · sles 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-obs-build · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-obs-qa · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-obs-qa · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-rt · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-source · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-source · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-source · sles 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-source · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-syms · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-syms · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-syms · sles 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-syms · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-zfcpdump · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-zfcpdump · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-zfcpdump · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| linux · Debian 12.15 (bookworm) | 6.1.159-1 | DEBIAN-CVE-2025-40253 | Dec 4, 2025 |
| linux · Debian 13.5 (trixie) | 6.12.63-1 | DEBIAN-CVE-2025-40253 | Dec 4, 2025 |
| linux · Debian 14 | 6.17.10-1 | DEBIAN-CVE-2025-40253 | Dec 4, 2025 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.