CVE-2024-49970: drm/amd/display: Implement bounds check for stream encoder creation in DCN401
CSIRTS triage
- What
- A missing bounds check in DCN401 stream encoder creation can cause denial of service.
- Who is affected
- Systems running the AMD display driver with DCN401 support in vulnerable kernel versions are affected.
- Urgency
- Remediation is routine; CVSS 5.5 is moderate and no active exploitation reported.
- Action
- Update the Linux kernel to include the bounds check fix for AMD DCN401 stream encoder creation.
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-2024-49970
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-2024-499700.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2024-49970 | 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-2026-68235: drm/amd/display: dce100: skip non-DP stream encoders for DP MSTmsrc · 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
- criticalCVE-2026-68236: drm/amd/display: set new_stream to NULL after releasemsrc · 2026-08-11
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