CVE-2026-80650

Summary

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.

Affected Software

Weaknesses

References

• https://git.kernel.org/stable/c/51b8dc5163d2ff2bf04019f8bf7e3bd0e75bb654
• 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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