GHSA-6g88-27p6-cw4pMediumCVSS 5.5
In the Linux kernel, the following vulnerability has been resolved: media: verisilicon: Avoid G2...
🔗 CVE IDs covered (1)
📋 Description
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.
🔗 References (8)
- https://nvd.nist.gov/vuln/detail/CVE-2026-43310
- https://git.kernel.org/stable/c/286d629d10640bc22f3bf46aa4f356eb7975e862
- https://git.kernel.org/stable/c/e0203ddf9af7c8e170e1e99ce83b4dc07f0cd765
- https://git.kernel.org/stable/c/5133ef7c893c2c3aee7dd12503dc480de9dbfbb5
- https://git.kernel.org/stable/c/f2efc1e8ab65bdb9b892af132887323e4df92f02
- https://git.kernel.org/stable/c/f988fbf0536b42f6a05ccc1ac709d60236ec1aa6
- https://git.kernel.org/stable/c/42a9fbccb33a38c5a9e0a84680939da8eae4f60e
- https://github.com/advisories/GHSA-6g88-27p6-cw4p