CVE-2026-89820

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Source
https://cve.org/CVERecord?id=CVE-2026-89820
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89820.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-89820
Downstream
Published
2026-09-16T10:30:52Z
Modified
2026-09-17T03:47:23Z
Summary
drm/amd/display: fix dc_lock leak on GPU reset error paths
Details

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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89820.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f
Fixed
295d2bf42061db490254e748f9344545bb7faf19
Fixed
dac29cbb405b912742f4f7eda833cec8e7a53780
Fixed
92a9eebd2a1f892fe482154d83f9f1626bc73d3b

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89820.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.15.0
Fixed
6.18.51
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89820.json"