CVE-2024-27394

high

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.

References

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

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

Details

Source: Mitre, NVD

Published: 2024-05-14

Updated: 2024-07-03

Risk Information

CVSS v2

Base Score: 6.9

Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 8.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: High