CVE-2023-52522
Vulnerability Summary
Timeline
Description
In the Linux kernel, the following vulnerability has been resolved: net: fix possible store tearing in neigh_periodic_work() While looking at a related syzbot report involving neigh_periodic_work(), I found that I forgot to add an annotation when deleting an RCU protected item from a list. Readers use rcu_deference(*np), we need to use either rcu_assign_pointer() or WRITE_ONCE() on writer side to prevent store tearing. I use rcu_assign_pointer() to have lockdep support, this was the choice made in neigh_flush_dev().
CVSS Metrics
- v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Trends
Current EPSS score: 0.01%• Percentile: 1%
Affected Systems
- linux•linux
≥ 767e97e1e0db0d0f3152cd2f3bd3403596aedbad, < 95eabb075a5902f4c0834ab1fb12dc35730c05af | ≥ 767e97e1e0db0d0f3152cd2f3bd3403596aedbad, < 2ea52a2fb8e87067e26bbab4efb8872639240eb0 | ≥ 767e97e1e0db0d0f3152cd2f3bd3403596aedbad, < 147d89ee41434b97043c2dcb17a97dc151859baa | ≥ 767e97e1e0db0d0f3152cd2f3bd3403596aedbad, < f82aac8162871e87027692b36af335a2375d4580 | ≥ 767e97e1e0db0d0f3152cd2f3bd3403596aedbad, < a75152d233370362eebedb2643592e7c883cc9fc | ≥ 767e97e1e0db0d0f3152cd2f3bd3403596aedbad, < 25563b581ba3a1f263a00e8c9a97f5e7363be6fd | 2.6.37
- linux•linux_kernel
≥ 2.6.37, < 5.4.258 | ≥ 5.5, < 5.10.198 | ≥ 5.11, < 5.15.135 | ≥ 5.16, < 6.1.57 | ≥ 6.2, < 6.5.7 | 6.6:rc1 | 6.6:rc2 | 6.6:rc3 | 6.6:rc4
References (6)
- https://git.kernel.org/stable/c/95eabb075a5902f4c0834ab1fb12dc35730c05af
- https://git.kernel.org/stable/c/2ea52a2fb8e87067e26bbab4efb8872639240eb0
- https://git.kernel.org/stable/c/147d89ee41434b97043c2dcb17a97dc151859baa
- https://git.kernel.org/stable/c/f82aac8162871e87027692b36af335a2375d4580
- https://git.kernel.org/stable/c/a75152d233370362eebedb2643592e7c883cc9fc
- https://git.kernel.org/stable/c/25563b581ba3a1f263a00e8c9a97f5e7363be6fd