mptcp: options: reset DSS fields in case of unexpected size (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.40 % · percentile 34 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: mptcp: options: reset DSS fields in case of unexpected size A remote peer could send a malformed DSS with a wrong size, followed by another DSS or MPC + Data. In this case, the first suboption will be ignored, but leaving some fields written, which could lead to inconsistency or access uninitialized data. Explicitly reset the fields that could have been modified in case of unexpected size.
References
- https://git.kernel.org/stable/c/15e35fdad7a5576bf3f1c8d688877aeb5d1b506b
- https://git.kernel.org/stable/c/b1256090816ec46011601e084be580731df58fc7
- https://git.kernel.org/stable/c/192878df582c51d440bf7b91a15f297f29f2b596
- https://git.kernel.org/stable/c/26dac5c9ffb20812b475fdf253eb04fab99cff3b
- https://git.kernel.org/stable/c/4e80eff5c1c893aca2ac1d202f0b256d2e52ecde
- https://git.kernel.org/stable/c/1fade1b2ac5b1a4948e538fae7313bea57b5ac36
- https://git.kernel.org/stable/c/27ed642a4e7e4b5df4b8522c72c457a67e052493
- https://git.kernel.org/stable/c/35772b4981f38ba8059372cde8753e8e477e98ec
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-66501
- GCVE · GCVE-0-2026-80586
CERT-FR advisories
- CERTFR-2026-AVI-1431 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1372 — Multiples vulnérabilités dans les produits SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1335 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1255 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1232 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1163 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 648ef4b88673dadb8463bf0d4b10fbf33d55def8 < 15e35fdad7a5576bf3f1c8d688877aeb5d1b506b ; affected 648ef4b88673dadb8463bf0d4b10fbf33d55def8 < b1256090816ec46011601e084be580731df58fc7 ; affected 648ef4b88673dadb8463bf0d4b10fbf33d55def8 < 192878df582c51d440bf7b91a15f297f29f2b596 ; affected 648ef4b88673dadb8463bf0d4b10fbf33d55def8 < 26dac5c9ffb20812b475fdf253eb04fab99cff3b ; affected 648ef4b88673dadb8463bf0d4b10fbf33d55def8 < 4e80eff5c1c893aca2ac1d202f0b256d2e52ecde ; affected 648ef4b88673dadb8463bf0d4b10fbf33d55def8 < 1fade1b2ac5b1a4948e538fae7313bea57b5ac36 |
| Linux · Linux | affected 5.6 ; unaffected 0 < 5.6 ; unaffected 5.10.266 ≤ 5.10.* ; unaffected 5.15.217 ≤ 5.15.* ; unaffected 6.1.184 ≤ 6.1.* ; unaffected 6.6.153 ≤ 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 |