misc: fastrpc: Don't remove map on creater_process and device_release
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.2%
exploitation probability
0.2%top 86% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
misc: fastrpc: Don't remove map on creater_process and device_release
Do not remove the map from the list on error path in
fastrpc_init_create_process, instead call fastrpc_map_put, to avoid
use-after-free. Do not remove it on fastrpc_device_release either,
call fastrpc_map_put instead.
The fastrpc_free_map is the only proper place to remove the map.
This is called only after the reference count is 0.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/193cd853145b63e670bd73740250983af1475330https://git.kernel.org/stable/c/1b7b7bb400dd13dcb03fc6e591bb7ca4664bbec8https://git.kernel.org/stable/c/35ddd482345c43d9eec1f3406c0f20a95ed4054bhttps://git.kernel.org/stable/c/4b5c44e924a571d0ad07054de549624fbc04e4d7https://git.kernel.org/stable/c/5bb96c8f9268e2fdb0e5321cbc358ee5941efc15