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CVE-2026-89820

drm/amd/display: fix dc_lock leak on GPU reset error paths

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: fix dc_lock leak on GPU reset error paths

On GPU reset, dm_suspend() takes dc_lock and leaves it for dm_resume()
to drop. If amdgpu_dm_commit_zero_streams() or dm_dmub_hw_init() fails,
the function returns with the lock still held. The matching resume path
is then skipped, so every later dc_lock take hangs.

Release the cached DC state and unlock before returning the error.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f
Version < 295d2bf42061db490254e748f9344545bb7faf19
Status affected
Version 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f
Version < dac29cbb405b912742f4f7eda833cec8e7a53780
Status affected
Version 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f
Version < 92a9eebd2a1f892fe482154d83f9f1626bc73d3b
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.15
Status affected
Version 0
Version < 6.15
Status unaffected
Version <= 6.18.*
Version 6.18.51
Status unaffected
Version <= 7.2.*
Version 7.2.5
Status unaffected
Version <= *
Version 7.3-rc1
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.2% 0.099
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/295d2bf42061db490254e748f9344545bb7faf19
https://git.kernel.org/stable/c/dac29cbb405b912742f4f7eda833cec8e7a53780
https://git.kernel.org/stable/c/92a9eebd2a1f892fe482154d83f9f1626bc73d3b