CVE-2022-49128

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux44cfc6233447cb2cf47aeb99457de35826a363f6 < ff13c90d7f7ab606b37be6d15140d19013d6736caffected
LinuxLinux44cfc6233447cb2cf47aeb99457de35826a363f6 < 792533e54cd6e89191798ccd1abd590c62b9077eaffected
LinuxLinux44cfc6233447cb2cf47aeb99457de35826a363f6 < 9df80dc738926a2ea4bd1ce5993c3d0f4b0e855caffected
LinuxLinux44cfc6233447cb2cf47aeb99457de35826a363f6 < 46f47807738441e354873546dde0b000106c068aaffected
LinuxLinux5.8affected
LinuxLinux0 < 5.8unaffected
LinuxLinux5.15.34 <= 5.15.*unaffected
LinuxLinux5.16.20 <= 5.16.*unaffected
LinuxLinux5.17.3 <= 5.17.*unaffected
LinuxLinux5.18 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References