mptcp: pm: ADD_ADDR rtx: always decrease sk refcount (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.13 % · percentile 2 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: ADD_ADDR rtx: always decrease sk refcount When an ADD_ADDR is retransmitted, the sk is held in sk_reset_timer(). It should then be released in all cases at the end. Some (unlikely) checks were returning directly instead of calling sock_put() to decrease the refcount. Jump to a new 'exit' label to call __sock_put() (which will become sock_put() in the next commit) to fix this potential leak. While at it, drop the '!msk' check which cannot happen because it is never reset, and explicitly mark the remaining one as "unlikely".
References
- https://git.kernel.org/stable/c/f5555a6d7c472849fdf2b426e3d0a85103118793
- https://git.kernel.org/stable/c/e9ba34301d2e90f63f97c76ad9eb98e5250fe961
- https://git.kernel.org/stable/c/81d8142148164176385c279c7c1e1d581867423d
- https://git.kernel.org/stable/c/9426265e157dd77ec237c795901ed4dea6d69b5c
- https://git.kernel.org/stable/c/b41dd76f3b9735096c21d3e799a2b9fe36498d57
- https://git.kernel.org/stable/c/acd3d3562315c99f3c0db16f0fcc5f0306638982
- https://git.kernel.org/stable/c/25e37407442b8766ec2cf52fb4e31b5c3d3aeeae
- https://git.kernel.org/stable/c/9634cb35af17019baec21ca648516ce376fa10e6
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2026-32785
- GCVE · GCVE-0-2026-46158
CERT-FR advisories
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1252 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1229 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1203 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1163 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1162 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1091 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1066 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1064 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0954 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0926 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0809 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.10 < 6.6.142cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.12.92cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13 < 6.18.30cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 7.0.7cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < f5555a6d7c472849fdf2b426e3d0a85103118793 ; affected 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < e9ba34301d2e90f63f97c76ad9eb98e5250fe961 ; affected 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 81d8142148164176385c279c7c1e1d581867423d ; affected 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 9426265e157dd77ec237c795901ed4dea6d69b5c ; affected 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < b41dd76f3b9735096c21d3e799a2b9fe36498d57 ; affected 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < acd3d3562315c99f3c0db16f0fcc5f0306638982 |
| Linux · Linux | affected 5.10 ; unaffected 0 < 5.10 ; unaffected 5.10.270 ≤ 5.10.* ; unaffected 5.15.218 ≤ 5.15.* ; unaffected 6.1.185 ≤ 6.1.* ; unaffected 6.6.142 ≤ 6.6.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |