CVE Published: 02/03/2024 |
CVE Updated: 06/11/2024 |
CVE Year: 2023 Source: Linux |
Vendor: Linux |
Product: Linux Status : PUBLISHED
CVE-2023-52522 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().