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

drm/amd/display: Check for tg ops in dce110_set_avmute

Some older DCE timing generators do not implement is_tg_enabled in
their ops table. Calling it unconditionally when waiting for AV mute
frames causes a NULL pointer dereference on Southern Islands dGPUs
when turning the display off over HDMI.

Check that tg and the required ops exist before waiting for frames.

(cherry picked from commit 2686a0c0aaa07bec2e24131835cf27b5fd4935a5)

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

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Fixes

Solution

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Workaround

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References
Link Providers
https://git.kernel.org/stable/c/3141e3d61469bba2624a91c5e2407f110b33b29e cve-icon cve-icon
https://git.kernel.org/stable/c/5edbb409b0bc5001195f4b7cfca19122361211a1 cve-icon cve-icon
https://git.kernel.org/stable/c/853c2d31408bd45dcf92d0eb1f06eb439a56cf04 cve-icon cve-icon
https://git.kernel.org/stable/c/d089f32d34f821c8f0ef23d5fcd77bd43c1b3b92 cve-icon cve-icon
History

Sat, 22 Aug 2026 18:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-476

Sat, 22 Aug 2026 15:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check for tg ops in dce110_set_avmute Some older DCE timing generators do not implement is_tg_enabled in their ops table. Calling it unconditionally when waiting for AV mute frames causes a NULL pointer dereference on Southern Islands dGPUs when turning the display off over HDMI. Check that tg and the required ops exist before waiting for frames. (cherry picked from commit 2686a0c0aaa07bec2e24131835cf27b5fd4935a5)
Title drm/amd/display: Check for tg ops in dce110_set_avmute
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-22T15:33:20.934Z

Reserved: 2026-08-15T05:44:03.930Z

Link: CVE-2026-74732

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-22T16:16:48.360

Modified: 2026-08-22T16:16:48.360

Link: CVE-2026-74732

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-22T18:00:04Z

Weaknesses