Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/bridge: Add missing pm_runtime_put_sync pm_runtime_get_sync() will increase the rumtime PM counter even when it returns an error. Thus a pairing decrement is needed to prevent refcount leak. Fix this by replacing this API with pm_runtime_resume_and_get(), which will not change the runtime PM counter on error. Besides, a matching decrement is needed on the error handling path to keep the counter balanced.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.15.34 |
References
- https://git.kernel.org/stable/c/46f47807738441e354873546dde0b000106c068aPatch
- https://git.kernel.org/stable/c/792533e54cd6e89191798ccd1abd590c62b9077ePatch
- https://git.kernel.org/stable/c/9df80dc738926a2ea4bd1ce5993c3d0f4b0e855cPatch
- https://git.kernel.org/stable/c/ff13c90d7f7ab606b37be6d15140d19013d6736cPatch
FAQ
What is CVE-2022-49128?
CVE-2022-49128 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: drm/bridge: Add missing pm_runtime_put_sync pm_runtime_get_sync() will increase the rumtime PM counter even when it returns an err...
How severe is CVE-2022-49128?
CVE-2022-49128 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-49128?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.