CVE-2023-52469
Published: February 27, 2024Last modified: February 27, 2024
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.81-r0) |
| Stream | linux-lts | Fixed (6.6.58-r0) |
References
- https://git.kernel.org/stable/c/28dd788382c43b330480f57cd34cde0840896743
- https://git.kernel.org/stable/c/3426f059eacc33ecc676b0d66539297e1cfafd02
- https://git.kernel.org/stable/c/35fa2394d26e919f63600ce631e6aefc95ec2706
- https://git.kernel.org/stable/c/520e213a0b97b64735a13950e9371e0a5d7a5dc3
- https://git.kernel.org/stable/c/8a27d9d9fc9b5564b8904c3a77a7dea482bfa34e
- https://git.kernel.org/stable/c/8b55b06e737feb2a645b0293ea27e38418876d63
- https://git.kernel.org/stable/c/95084632a65d5c0d682a83b55935560bdcd2a1e3
- https://git.kernel.org/stable/c/b6dcba02ee178282e0d28684d241e0b8462dea6a
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html