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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2024-26708

mptcp: really cope with fastopen race

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 1e777f39b4d75e599a3aac8e0f67d739474f198c to < 4bfe217e075d04e63c092df9d40c608e598c2ef2affected
  • 1e777f39b4d75e599a3aac8e0f67d739474f198c to < e158fb9679d15a2317ec13b4f6301bd26265df2faffected
  • 1e777f39b4d75e599a3aac8e0f67d739474f198c to < 337cebbd850f94147cee05252778f8f78b8c337faffected

Linux Linux

Default version status: affected

  • 6.2affected
  • 0 to < 6.2unaffected
  • 6.6.18 to ≤ 6.6.*unaffected
  • 6.7.6 to ≤ 6.7.*unaffected
  • 6.8 to ≤ *unaffected

References