CVEvulnerability
CVE-2026-93141
- Status
- Received
- Published
- 2026-09-17
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: r8a66597: avoid double free of ep0_req in probe error path
If usb_add_gadget_udc() fails, r8a66597_probe() jumps to err_add_udc
and frees ep0_req, then falls through to clean_up2 where ep0_req is
freed again when it is non-NULL.
Remove the redundant free from err_add_udc and keep the cleanup in
clean_up2 so the request is released exactly once.
Issue found using a prototype static analysis tool
and confirmed by code review.
References
- https://git.kernel.org/stable/c/150d3f3c461345b6c9ae784912cf1e49c8e5ff6b git.kernel.org
- https://git.kernel.org/stable/c/41d541e3718db01668a4cd29815ee4b3b55f76d2 git.kernel.org
- https://git.kernel.org/stable/c/6648c470918371766f6d368113dd2a4faebac93f git.kernel.org
- https://git.kernel.org/stable/c/6be64cca6527f7fc99b05abf54f22db91bbc116f git.kernel.org
- https://git.kernel.org/stable/c/7721cf32efa428bd9649f4a9b89fc85601df87de git.kernel.org
- https://git.kernel.org/stable/c/b2e68583c7c51eea2aafb8f1793e0d285c56ac82 git.kernel.org
- https://git.kernel.org/stable/c/c9e93290ffe7db22a8131a5f5fd026335090fbbe git.kernel.org
- https://git.kernel.org/stable/c/f9c43246128a2dd0f2bbad71decf153910ce3606 git.kernel.org