CVE-2026-97567 PUBLISHED

mptcp: prevent race between disconnect() and rtx

Assigner: Linux
Reserved: 24.09.2026 Published: 25.09.2026 Updated: 25.09.2026

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.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from b29fcfb54cd70caca5b11c80d8d238854938884a to 374da2b9be1280695ce41f108334a8f16e3e54be (excl.)
  • affected from b29fcfb54cd70caca5b11c80d8d238854938884a to 69a7b2a912672159dda7dcf325d27752d448dfdf (excl.)
  • affected from b29fcfb54cd70caca5b11c80d8d238854938884a to 85c580b0d8590520ae00a15c29e9fb9c99427a3e (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 5.17 is affected
  • unaffected from 0 to 5.17 (excl.)
  • unaffected from 6.18.53 to 6.18.* (incl.)
  • unaffected from 7.2.7 to 7.2.* (incl.)
  • unaffected from 7.3-rc3 to * (incl.)

References