drivers/amd/pm: fix a use-after-free in kv_parse_power_table
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.3%
exploitation probability
0.3%top 79% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
drivers/amd/pm: fix a use-after-free in kv_parse_power_table
When ps allocated by kzalloc equals to NULL, kv_parse_power_table
frees adev->pm.dpm.ps that allocated before. However, after the control
flow goes through the following call chains:
kv_parse_power_table
|-> kv_dpm_init
|-> kv_dpm_sw_init
|-> kv_dpm_fini
The adev->pm.dpm.ps is used in the for loop of kv_dpm_fini after its
first free in kv_parse_power_table and causes a use-after-free bug.
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/28dd788382c43b330480f57cd34cde0840896743https://git.kernel.org/stable/c/3426f059eacc33ecc676b0d66539297e1cfafd02https://git.kernel.org/stable/c/35fa2394d26e919f63600ce631e6aefc95ec2706https://git.kernel.org/stable/c/520e213a0b97b64735a13950e9371e0a5d7a5dc3https://git.kernel.org/stable/c/8a27d9d9fc9b5564b8904c3a77a7dea482bfa34ehttps://git.kernel.org/stable/c/8b55b06e737feb2a645b0293ea27e38418876d63https://git.kernel.org/stable/c/95084632a65d5c0d682a83b55935560bdcd2a1e3https://git.kernel.org/stable/c/b6dcba02ee178282e0d28684d241e0b8462dea6ahttps://lists.debian.org/debian-lts-announce/2024/06/msg00016.htmlhttps://lists.debian.org/debian-lts-announce/2024/06/msg00020.html