CVE-2023-52691
drm/amd/pm: fix a double-free in si_dpm_init
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.9
References 8
git.kernel.org
- stable/c/afe9f5b871f86d58ecdc45b217b662227d7890d0
- stable/c/06d95c99d5a4f5accdb79464076efe62e668c706
- stable/c/aeed2b4e4a70c7568d4a5eecd6a109713c0dfbf4
- stable/c/2bf47c89bbaca2bae16581ef1b28aaec0ade0334
- stable/c/f957a1be647f7fc65926cbf572992ec2747a93f2
- stable/c/fb1936cb587262cd539e84b34541abb06e42b2f9
- stable/c/ca8e2e251c65e5a712f6025e27bd9b26d16e6f4a
- stable/c/ac16667237a82e2597e329eb9bc520d1cf9dff30