CVE-2023-53042: drm/amd/display: Do not set DRR on pipe Commit

mediumCVSS 5.5CVE-2023-53042

CSIRTS triage

vendor: AMD product: Linux kernel DRM AMD display Denial of service

What: Setting DRR (Dynamic Refresh Rate) on a pipe during commit causes a denial of service.
Who is affected: Linux systems with AMD GPUs using the DRM display driver.
Urgency: Medium severity; causes application crash or system hang but no data loss or code execution.
Action: Apply the kernel patch that disables DRR setting on pipe commit or upgrade to a patched kernel version.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 5.5
Published: 2026-08-06
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-53042

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2023-530420.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2023-53042	coverage & exploitation status	NVD · CVE.org

Recent advisories for drm/amd/display

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownCVE-2026-74732: In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check for…nvd · 2026-08-22
highCVE-2026-74449: In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix divid…nvd · 2026-08-15
unknownCVE-2026-68436: In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: use kvzal…nvd · 2026-08-12
lowCVE-2026-68256: drm/amd/display: detect_link_and_local_sink: DP alt mode timeout path leaks prev_sink referenc…msrc · 2026-08-11
mediumCVE-2026-68436: drm/amd/display: use kvzalloc to allocate struct dcmsrc · 2026-08-11
mediumCVE-2026-68235: drm/amd/display: dce100: skip non-DP stream encoders for DP MSTmsrc · 2026-08-11