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.
References8
- git.kernel.org/stable/c/15e35fdad7a5576bf3f1c8d688877aeb5d1b506b
- git.kernel.org/stable/c/192878df582c51d440bf7b91a15f297f29f2b596
- git.kernel.org/stable/c/1fade1b2ac5b1a4948e538fae7313bea57b5ac36
- git.kernel.org/stable/c/26dac5c9ffb20812b475fdf253eb04fab99cff3b
- git.kernel.org/stable/c/27ed642a4e7e4b5df4b8522c72c457a67e052493
- git.kernel.org/stable/c/35772b4981f38ba8059372cde8753e8e477e98ec
- git.kernel.org/stable/c/4e80eff5c1c893aca2ac1d202f0b256d2e52ecde
- git.kernel.org/stable/c/b1256090816ec46011601e084be580731df58fc7
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 34 · as of 9 November 2026
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