CVE-2024-27394

Summary

In the Linux kernel, the following vulnerability has been resolved:

tcp: Fix Use-After-Free in tcp_ao_connect_init

Since call_rcu, which is called in the hlist_for_each_entry_rcu traversal of tcp_ao_connect_init, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free.

To prevent this, it should be changed to hlist_for_each_entry_safe.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux7c2ffaf21bd67f73d21560995ce17eaf5fc1d37f < ca4fb6c6764b3f75b4f5aa81db1536291897ff7faffected
LinuxLinux7c2ffaf21bd67f73d21560995ce17eaf5fc1d37f < 80e679b352c3ce5158f3f778cfb77eb767e586fbaffected
LinuxLinux6.7affected
LinuxLinux0 < 6.7unaffected
LinuxLinux6.8.9 <= 6.8.*unaffected
LinuxLinux6.9 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: total

CVE Program Container

Additional References

References