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THREATINT
PUBLISHED

CVE-2024-27394

tcp: Fix Use-After-Free in tcp_ao_connect_init

Reserved:2024-02-25
Published:2024-05-09
Updated:2024-05-13

Description

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.

Product status

Default status
unaffected

7c2ffaf21bd6 before ca4fb6c6764b
affected

7c2ffaf21bd6 before 80e679b352c3
affected

Default status
affected

6.7
affected

Any version before 6.7
unaffected

6.8.9
unaffected

6.9
unaffected

References

https://git.kernel.org/stable/c/ca4fb6c6764b3f75b4f5aa81db1536291897ff7f

https://git.kernel.org/stable/c/80e679b352c3ce5158f3f778cfb77eb767e586fb

cve.org CVE-2024-27394

nvd.nist.gov CVE-2024-27394

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