CVE-2023-52469
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.29% probability · 22th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/28dd788382c43b330480f57cd34cde0840896743Patch
- https://git.kernel.org/stable/c/3426f059eacc33ecc676b0d66539297e1cfafd02Patch
- https://git.kernel.org/stable/c/35fa2394d26e919f63600ce631e6aefc95ec2706Patch
- https://git.kernel.org/stable/c/520e213a0b97b64735a13950e9371e0a5d7a5dc3Patch
- https://git.kernel.org/stable/c/8a27d9d9fc9b5564b8904c3a77a7dea482bfa34ePatch
- https://git.kernel.org/stable/c/8b55b06e737feb2a645b0293ea27e38418876d63Patch
- https://git.kernel.org/stable/c/95084632a65d5c0d682a83b55935560bdcd2a1e3Patch
- https://git.kernel.org/stable/c/b6dcba02ee178282e0d28684d241e0b8462dea6aPatch
- https://git.kernel.org/stable/c/28dd788382c43b330480f57cd34cde0840896743Patch
- https://git.kernel.org/stable/c/3426f059eacc33ecc676b0d66539297e1cfafd02Patch
- https://git.kernel.org/stable/c/35fa2394d26e919f63600ce631e6aefc95ec2706Patch
- https://git.kernel.org/stable/c/520e213a0b97b64735a13950e9371e0a5d7a5dc3Patch
- https://git.kernel.org/stable/c/8a27d9d9fc9b5564b8904c3a77a7dea482bfa34ePatch
- https://git.kernel.org/stable/c/8b55b06e737feb2a645b0293ea27e38418876d63Patch
- https://git.kernel.org/stable/c/95084632a65d5c0d682a83b55935560bdcd2a1e3Patch
- https://git.kernel.org/stable/c/b6dcba02ee178282e0d28684d241e0b8462dea6aPatch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.