linux/drivers/net/xen-netback
Jeongjun Park 0fa5e94a18 net/xen-netback: prevent UAF in xenvif_flush_hash()
During the list_for_each_entry_rcu iteration call of xenvif_flush_hash,
kfree_rcu does not exist inside the rcu read critical section, so if
kfree_rcu is called when the rcu grace period ends during the iteration,
UAF occurs when accessing head->next after the entry becomes free.

Therefore, to solve this, you need to change it to list_for_each_entry_safe.

Signed-off-by: Jeongjun Park <aha310510@gmail.com>
Link: https://patch.msgid.link/20240822181109.2577354-1-aha310510@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-28 17:07:42 -07:00
..
common.h
hash.c net/xen-netback: prevent UAF in xenvif_flush_hash() 2024-08-28 17:07:42 -07:00
interface.c
Makefile
netback.c
rx.c
xenbus.c