CVE-2024-26708

MEDIUM

Linux Kernel 6.2-6.6.17, 6.7.0-6.7.5 - Race Condition in MPTCP Fastopen and Subflow Shutdown

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: mptcp: really cope with fastopen race Fastopen and PM-trigger subflow shutdown can race, as reported by syzkaller. In my first attempt to close such race, I missed the fact that the subflow status can change again before the subflow_state_change callback is invoked. Address the issue additionally copying with all the states directly reachable from TCP_FIN_WAIT1.

References (3)

Core 3

Core References

Patch

https://git.kernel.org/stable/c/4bfe217e075d04e63c092df9d40c608e598c2ef2

Patch

https://git.kernel.org/stable/c/e158fb9679d15a2317ec13b4f6301bd26265df2f

Patch

https://git.kernel.org/stable/c/337cebbd850f94147cee05252778f8f78b8c337f

Scores

CVSS v3 5.5

EPSS 0.0017

EPSS Percentile 6.8%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-362

Status published

Products (12)

linux/Kernel 6.2.0 - 6.6.18linux

linux/Kernel 6.7.0 - 6.7.6linux

Linux/Linux < 6.2

Linux/Linux 1e777f39b4d75e599a3aac8e0f67d739474f198c - 337cebbd850f94147cee05252778f8f78b8c337f

Linux/Linux 1e777f39b4d75e599a3aac8e0f67d739474f198c - 4bfe217e075d04e63c092df9d40c608e598c2ef2

Linux/Linux 1e777f39b4d75e599a3aac8e0f67d739474f198c - e158fb9679d15a2317ec13b4f6301bd26265df2f

Linux/Linux 6.2

Linux/Linux 6.6.18 - 6.6.*

Linux/Linux 6.7.6 - 6.7.*

Linux/Linux 6.8

... and 2 more

Published Apr 03, 2024

Tracked Since Feb 18, 2026