CVE-2024-49908: drm/amd/display: Add null check for 'afb' in amdgpu_dm_update_cursor (v2)

mediumCVSS 5.5CVE-2024-49908

CSIRTS triage

vendor: AMD product: AMDGPU DisplayOther

What: A null pointer dereference in amdgpu_dm_update_cursor when the atomic framebuffer pointer is not validated.
Who is affected: Systems with AMD GPUs running affected kernel versions with display driver in use.
Urgency: Moderate urgency; CVSS 5.5 indicates local DoS risk requiring kernel update.
Action: Apply Linux kernel patches adding null checks in AMDGPU display cursor update code.

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-2024-49908

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-2024-499080.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2024-49908	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
criticalCVE-2026-68364: drm/amd/display: Fix ISM dc_lock deadlock during suspendmsrc · 2026-08-11
mediumCVE-2026-74732: drm/amd/display: Check for tg ops in dce110_set_avmutemsrc · 2026-08-11
lowCVE-2026-68256: drm/amd/display: detect_link_and_local_sink: DP alt mode timeout path leaks prev_sink referenc…msrc · 2026-08-11