CVE-2024-49916: drm/amd/display: Add NULL check for clk_mgr and clk_mgr->funcs in dcn401_init_hw
CSIRTS triage
- What
- Missing NULL pointer check for clk_mgr and clk_mgr->funcs in dcn401_init_hw causing potential crash.
- Who is affected
- Linux systems with AMD DCN401 display hardware.
- Urgency
- Medium priority; CVSS 5.5, denial of service possible.
- Action
- Update Linux kernel to include the NULL check patch.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49916
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-2024-499160.21% 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-2024-49916 | 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
- mediumCVE-2026-68436: drm/amd/display: use kvzalloc to allocate struct dcmsrc · 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
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