CVE-2026-97567: mptcp: prevent race between disconnect() and rtx
Published Sep 25, 2026
·Updated
In the Linux kernel, the following vulnerability has been resolved:
mptcp: prevent race between disconnect() and rtx
Sashiko noted that the two event can race, leading to inconsistent status. Prevent the race using the synchronous timer stop operation.
Affected Software
1 affected component
Linux Linux kernel
Event History
Sep 25, 2026
CVE Published
via MITRE·10:21 AM
Data Sourced
via MITRE·10:21 AM
Description
Data Sourced
via NVD·11:17 AM
Description
Frequently Asked Questions
1
What remediation is documented for this issue?
The issue is resolved in Linux kernel stable changes referenced by commits 374da2b9be1280695ce41f108334a8f16e3e54be, 69a7b2a912672159dda7dcf325d27752d448dfdf, and 85c580b0d8590520ae00a15c29e9fb9c99427a3e. Update to a kernel release that includes the applicable fix.
2
Does the available information identify exploit prerequisites or affected kernel versions?
No. The provided data does not specify affected versions, whether MPTCP is enabled by default, or any attacker access or configuration prerequisites.