CVE-2026-97523

In the Linux kernel, the following vulnerability has been resolved: mptcp: close race between scheduler and state change The mptcp scheduler may race with subflow sockets state change: data transmission on the selected socket may fail and a later release could try to use mss_now reset to 0 for a divide operation. Address the issue by explicitly checking for the critical scenario.

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-25)

Published

2026-09-25

Modified

2026-10-19

Record from

the NVD, synced 2026-10-19

References

• https://git.kernel.org/stable/c/0a926b5df8efdfbac07e2fb7fafb21849a2ad9c0
• https://git.kernel.org/stable/c/42064de57fb83231fcc89663a94885f228a1ee53
• https://git.kernel.org/stable/c/4c856f3c151a2f3fa237caa651c44015916ca584
• https://git.kernel.org/stable/c/5883ae880f51edc4b1484e787473b865b6159ead
• https://git.kernel.org/stable/c/8f11430d51ff8365bc51b670bc3002b65ae4c6b7

Check your stackJSON