drm/amd/display: Fix hang/underflow when transitioning to ODM4:1
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix hang/underflow when transitioning to ODM4:1 [Why] Under some circumstances, disabling an OPTC and attempting to reclaim its OPP(s) for a different OPTC could cause a hang/underflow due to OPPs not being properly disconnected from the disabled OPTC. [How] Ensure that all OPPs are unassigned from an OPTC when it gets disabled.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix hang/underflow when transitioning to ODM4:1 [Why] Under some circumstances, disabling an OPTC and attempting to reclaim its OPP(s) for a different OPTC could cause a hang/underflow due to OPPs not being properly disconnected from the disabled OPTC. [How] Ensure that all OPPs are unassigned from an OPTC when it gets disabled.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/4b6b479b2da6badff099b2e3abf0248936eefbf5
- https://git.kernel.org/stable/c/ae62f1dde66a6f0eee98defc4c7a346bd5acd239
- https://git.kernel.org/stable/c/e7b2b108cdeab76a7e7324459e50b0c1214c0386
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52671.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-52671