Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c before f988fbf0536b42f6a05ccc1ac709d60236ec1aa6; affected cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c before f2efc1e8ab65bdb9b892af132887323e4df92f02; affected cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c before 5133ef7c893c2c3aee7dd12503dc480de9dbfbb5; affected cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c before 286d629d10640bc22f3bf46aa4f356eb7975e862; affected cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c before e0203ddf9af7c8e170e1e99ce83b4dc07f0cd765 |
| Linux / Linux | affected 5.14; unaffected 0 before 5.14; unaffected 6.6.160 through 6.6.*; unaffected 6.12.114 through 6.12.*; unaffected 6.18.57 through 6.18.*; unaffected 6.19.6 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- 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