af_unix: Fix a data-race in unix_dgram_peer_wake_me().
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.7epss 0.2%
exploitation probability
0.2%top 92% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/556720013c36c193d9cbfb06e7b33e51f0c39fbfhttps://git.kernel.org/stable/c/662a80946ce13633ae90a55379f1346c10f0c432https://git.kernel.org/stable/c/71e8bfc7f838cabc60cba24e09ca84c4f8321ab2https://git.kernel.org/stable/c/8801eb3ccd2e4e3b1a01449383e3321ae6dbd9d6https://git.kernel.org/stable/c/95f0ba806277733bf6024e23e27e1be773701ccahttps://git.kernel.org/stable/c/c61848500a3fd6867dfa4834b8c7f97133eceb9fhttps://git.kernel.org/stable/c/c926ae58f24f7bd55aa2ea4add9f952032507913