CVE-2025-40253s390/ctcm: Fix double-kfree
- 8.8HighCVSS base score
- 0.32%Exploitation in 30 daysEPSS · top 74% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 8 months later
· 8 months later
Published
- 11 months later
· 11 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.32% · top 74% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
- affected 467ddbbe7e749d558f13e640f50f546149c930b3 – < 06f1dd1de0d33dbfbd2e1fc9fc57d8895f730de2
- affected 4d3c6d741816539b57fa1110c3f765a8c176d7b4 – < 6bf8ccaabce8cebb6cb1f255c93d0acdfe95c17a
- affected 2bd57101c3ecf3f8c0da1d26c2b6ad511adc6d50 – < 7616e2eee679746d526c7f5befd4eedb995935b5
- affected 0c0b20587b9f25a2ad14db7f80ebe49bdf29920a – < 43096dab8cc60fc39133205fd149a54d3acebea8
- affected 0c0b20587b9f25a2ad14db7f80ebe49bdf29920a – < 3b177b2ded563df16f6d5920671ffcfe5915d472
- affected 0c0b20587b9f25a2ad14db7f80ebe49bdf29920a – < b9dbfb1b5699f9f1e4991f96741bdf9047147589
- affected 0c0b20587b9f25a2ad14db7f80ebe49bdf29920a – < 7ff76f8dc6b550f8d16487bf3cebc278be720b5c
- affected 0c0b20587b9f25a2ad14db7f80ebe49bdf29920a – < da02a1824884d6c84c5e5b5ac373b0c9e3288ec2
- affected 36933de59f67029e5739a98393891f9b94f27e0f
- affected d886b4292a1c5b4facdb2dfdc31f0fecc71df898
- affected 4c9ba0fed125deba8416b995b0c274b0804c0c24
- affected ea0053af5dab4d63a9c44563973fb2f3bfd9eb2b
- affected 5.4.195 – < 5.4.302
- affected 5.10.117 – < 5.10.247
- affected 5.15.41 – < 5.15.197
- affected 4.9.315 – < 4.10
- affected 4.14.280 – < 4.15
- affected 4.19.244 – < 4.20
- affected 5.17.9 – < 5.18
- affected 5.18
- unaffected < 5.18
- unaffected 5.4.302 – ≤ 5.4.*
- unaffected 5.10.247 – ≤ 5.10.*
- unaffected 5.15.197 – ≤ 5.15.*
- unaffected 6.1.159 – ≤ 6.1.*
- unaffected 6.6.118 – ≤ 6.6.*
- unaffected 6.12.60 – ≤ 6.12.*
- unaffected 6.17.10 – ≤ 6.17.*
- unaffected 6.18 – ≤ *
References
References8
- https://git.kernel.org/stable/c/06f1dd1de0d33dbfbd2e1fc9fc57d8895f730de2 (opens in a new tab)
- https://git.kernel.org/stable/c/6bf8ccaabce8cebb6cb1f255c93d0acdfe95c17a (opens in a new tab)
- https://git.kernel.org/stable/c/7616e2eee679746d526c7f5befd4eedb995935b5 (opens in a new tab)
- https://git.kernel.org/stable/c/43096dab8cc60fc39133205fd149a54d3acebea8 (opens in a new tab)
- https://git.kernel.org/stable/c/3b177b2ded563df16f6d5920671ffcfe5915d472 (opens in a new tab)
- https://git.kernel.org/stable/c/b9dbfb1b5699f9f1e4991f96741bdf9047147589 (opens in a new tab)
- https://git.kernel.org/stable/c/7ff76f8dc6b550f8d16487bf3cebc278be720b5c (opens in a new tab)
- https://git.kernel.org/stable/c/da02a1824884d6c84c5e5b5ac373b0c9e3288ec2 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-201204 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-40253)Record last updated .