CVE-2024-26708

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux1e777f39b4d75e599a3aac8e0f67d739474f198c < 4bfe217e075d04e63c092df9d40c608e598c2ef2affected
LinuxLinux1e777f39b4d75e599a3aac8e0f67d739474f198c < e158fb9679d15a2317ec13b4f6301bd26265df2faffected
LinuxLinux1e777f39b4d75e599a3aac8e0f67d739474f198c < 337cebbd850f94147cee05252778f8f78b8c337faffected
LinuxLinux6.2affected
LinuxLinux0 < 6.2unaffected
LinuxLinux6.6.18 <= 6.6.*unaffected
LinuxLinux6.7.6 <= 6.7.*unaffected
LinuxLinux6.8 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References