CVE-2026-43310
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
media: verisilicon: Avoid G2 bus error while decoding H.264 and HEVC
For the i.MX8MQ platform, there is a hardware limitation: the g1 VPU and g2 VPU cannot decode simultaneously; otherwise, it will cause below bus error and produce corrupted pictures, even potentially lead to system hang.
[ 110.527986] hantro-vpu 38310000.video-codec: frame decode timed out. [ 110.583517] hantro-vpu 38310000.video-codec: bus error detected.
Therefore, it is necessary to ensure that g1 and g2 operate alternately. This allows for successful multi-instance decoding of H.264 and HEVC.
To achieve this, g1 and g2 share the same v4l2_m2m_dev, and then the v4l2_m2m_dev can handle the scheduling.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c < 286d629d10640bc22f3bf46aa4f356eb7975e862 | affected |
| Linux | Linux | cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c < e0203ddf9af7c8e170e1e99ce83b4dc07f0cd765 | affected |
| Linux | Linux | 5.14 | affected |
| Linux | Linux | 0 < 5.14 | unaffected |
| Linux | Linux | 6.19.6 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/286d629d10640bc22f3bf46aa4f356eb7975e862
- https://git.kernel.org/stable/c/e0203ddf9af7c8e170e1e99ce83b4dc07f0cd765
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