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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c to < 42a9fbccb33a38c5a9e0a84680939da8eae4f60eaffectedcb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c to < f988fbf0536b42f6a05ccc1ac709d60236ec1aa6affectedcb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c to < f2efc1e8ab65bdb9b892af132887323e4df92f02affectedcb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c to < 5133ef7c893c2c3aee7dd12503dc480de9dbfbb5affectedcb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c to < 286d629d10640bc22f3bf46aa4f356eb7975e862affectedcb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c to < e0203ddf9af7c8e170e1e99ce83b4dc07f0cd765affected
Linux Linux
Default version status: affected
5.14affected0 to < 5.14unaffected6.1.191 to ≤ 6.1.*unaffected6.6.160 to ≤ 6.6.*unaffected6.12.114 to ≤ 6.12.*unaffected6.18.57 to ≤ 6.18.*unaffected6.19.6 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/42a9fbccb33a38c5a9e0a84680939da8eae4f60e ↗
- https://git.kernel.org/stable/c/f988fbf0536b42f6a05ccc1ac709d60236ec1aa6 ↗
- https://git.kernel.org/stable/c/f2efc1e8ab65bdb9b892af132887323e4df92f02 ↗
- https://git.kernel.org/stable/c/5133ef7c893c2c3aee7dd12503dc480de9dbfbb5 ↗
- https://git.kernel.org/stable/c/286d629d10640bc22f3bf46aa4f356eb7975e862 ↗
- https://git.kernel.org/stable/c/e0203ddf9af7c8e170e1e99ce83b4dc07f0cd765 ↗