CVE-2022-49344 Information

Description

In the Linux kernel the following vulnerability has been resolved:

af_unix: Fix a data-race in unix_dgram_peer_wake_me().

unix_dgram_poll() calls unix_dgram_peer_wake_me() without other’s lock held and check if its receive queue is full. Here we need to use unix_recvq_full_lockless() instead of unix_recvq_full() otherwise KCSAN will report a data-race.

Reference

https://git.kernel.org/stable/c/556720013c36c193d9cbfb06e7b33e51f0c39fbf https://git.kernel.org/stable/c/662a80946ce13633ae90a55379f1346c10f0c432 https://git.kernel.org/stable/c/71e8bfc7f838cabc60cba24e09ca84c4f8321ab2 https://git.kernel.org/stable/c/8801eb3ccd2e4e3b1a01449383e3321ae6dbd9d6 https://git.kernel.org/stable/c/95f0ba806277733bf6024e23e27e1be773701cca https://git.kernel.org/stable/c/c61848500a3fd6867dfa4834b8c7f97133eceb9f https://git.kernel.org/stable/c/c926ae58f24f7bd55aa2ea4add9f952032507913