# CVE-2026-43310: media: verisilicon: Avoid G2 bus error while decoding H.264 and HEVC

CVE-2026-43310 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-43310, released May 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-43310
- Priority: Routine
- CVSS: 5.5 (Moderate)
- EPSS: 0.0012
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 8, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-43310

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.115-2 | [DEBIAN-CVE-2026-43310](https://patchblox.com/security/data/fix/linux/debian-cve-2026-43310.md) | May 15, 2026 |
| Linux | linux Debian 14 | 6.19.6-1 | [DEBIAN-CVE-2026-43310](https://patchblox.com/security/data/fix/linux/debian-cve-2026-43310.md) | May 15, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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