CVEvulnerability
CVE-2026-80650
- Status
- Received
- Published
- 2026-08-28
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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.
References
- https://git.kernel.org/stable/c/51b8dc5163d2ff2bf04019f8bf7e3bd0e75bb654 git.kernel.org
- https://git.kernel.org/stable/c/592a0e78ab08f6373c40912365759d8a066e7711 git.kernel.org
- https://git.kernel.org/stable/c/628f763aee0047ff44974388d6f70f75a763026b git.kernel.org
- https://git.kernel.org/stable/c/d57e67ea48e4d095052f2b14d8dd7593621f862f git.kernel.org
- https://git.kernel.org/stable/c/f614bf0a64aa1cb7444d152a96798a6bf1d49e1f git.kernel.org
- https://git.kernel.org/stable/c/fdbb8e55578b4ab647fa58827a9dd8730d7f4add git.kernel.org