CVE-2026-74732

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

Published Aug 22, 2026 CVSS 3.1 · 5.5 Medium EPSS n/a KEV · Not listed
Description
This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4788-1 linux-6.12 security update
Debian DSA Debian DSA DSA-6466-1 linux security update
History
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 (cherry picked from commit 2686a0c0aaa07bec2e24131835cf27b5fd4935a5) This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Title drm/amd/display: Check for tg ops in dce110_set_avmute kernel: drm/amd/display: Check for tg ops in dce110_set_avmute
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References
Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Type Values Removed Values Added
Weaknesses CWE-476
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
Weaknesses

Sources

Status
REJECTED
Assigner
Linux
Published
Updated
Sep 29, 2026, 12:15 PM
Reserved
Aug 15, 2026, 5:44 AM
Status
Rejected
Published
Aug 22, 2026, 4:16 PM
Modified
Oct 16, 2026, 3:10 PM
Severity
Moderate
Public date
Aug 22, 2026, 12:00 AM