CVE-2023-52469
drivers/amd/pm: fix a use-after-free in kv_parse_power_table
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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: 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.
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
4.2
References 8
git.kernel.org
- stable/c/8a27d9d9fc9b5564b8904c3a77a7dea482bfa34e
- stable/c/8b55b06e737feb2a645b0293ea27e38418876d63
- stable/c/520e213a0b97b64735a13950e9371e0a5d7a5dc3
- stable/c/b6dcba02ee178282e0d28684d241e0b8462dea6a
- stable/c/35fa2394d26e919f63600ce631e6aefc95ec2706
- stable/c/95084632a65d5c0d682a83b55935560bdcd2a1e3
- stable/c/3426f059eacc33ecc676b0d66539297e1cfafd02
- stable/c/28dd788382c43b330480f57cd34cde0840896743