CVE-2023-52522

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().

Date published : 2024-03-02

https://git.kernel.org/stable/c/147d89ee41434b97043c2dcb17a97dc151859baa

https://git.kernel.org/stable/c/25563b581ba3a1f263a00e8c9a97f5e7363be6fd