Description

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/pm: fix a double-free in si_dpm_init

When the allocation of
adev->pm.dpm.dyn_state.vddc_dependency_on_dispclk.entries fails,
amdgpu_free_extended_power_table is called to free some fields of adev.
However, when the control flow returns to si_dpm_sw_init, it goes to
label dpm_failed and calls si_dpm_fini, which calls
amdgpu_free_extended_power_table again and free those fields again. Thus
a double-free is triggered.

Classification

CVE ID: CVE-2023-52691

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.06% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://git.kernel.org/stable/c/afe9f5b871f86d58ecdc45b217b662227d7890d0
https://git.kernel.org/stable/c/06d95c99d5a4f5accdb79464076efe62e668c706
https://git.kernel.org/stable/c/aeed2b4e4a70c7568d4a5eecd6a109713c0dfbf4
https://git.kernel.org/stable/c/2bf47c89bbaca2bae16581ef1b28aaec0ade0334
https://git.kernel.org/stable/c/f957a1be647f7fc65926cbf572992ec2747a93f2
https://git.kernel.org/stable/c/fb1936cb587262cd539e84b34541abb06e42b2f9
https://git.kernel.org/stable/c/ca8e2e251c65e5a712f6025e27bd9b26d16e6f4a
https://git.kernel.org/stable/c/ac16667237a82e2597e329eb9bc520d1cf9dff30

Timeline