CVE-2024-49970drm/amd/display: Implement bounds check for stream encoder creation in DCN401
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Implement bounds check for stream encoder creation in DCN401 'stream_enc_regs' array is an array of dcn10_stream_enc_registers structures. The array is initialized with four elements, corresponding to the four calls to stream_enc_regs() in the array initializer. This means that valid indices for this array are 0, 1, 2, and 3. The error message 'stream_enc_regs' 4 <= 5 below, is indicating that there is an attempt to access this array with an index of 5, which is out of bounds. This could lead to undefined behavior Here, eng_id is used as an index to access the stream_enc_regs array. If eng_id is 5, this would result in an out-of-bounds access on the stream_enc_regs array. Thus fixing Buffer overflow error in dcn401_stream_encoder_create Found by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn401/dcn401_resource.c:1209 dcn401_stream_encoder_create() error: buffer overflow 'stream_enc_regs' 4 <= 5
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 21, 2026
- First seen by InfoSec Signals
- Oct 21, 2026
Affected products
Linux Linux linux:linux (from the name) | 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c builds before 00872dcc2a3e4a42155c2f3b7f21952a62301035; from 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before b219b46ad42df1dea9258788bcfea37181f3ccb2; from 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before bdf606810210e8e07a0cdf1af3c467291363b295 | CNA record |
linux linux_kernel linux:linux_kernel | before 6.11.3 | NVD |
References
- https://git.kernel.org/stable/c/00872dcc2a3e4a42155c2f3b7f21952a62301035
- https://git.kernel.org/stable/c/b219b46ad42df1dea9258788bcfea37181f3ccb2patch
- https://git.kernel.org/stable/c/bdf606810210e8e07a0cdf1af3c467291363b295patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.