CVE-2026-93141

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux776976a67ae25d18be42794fd783a50757402cbe < c9e93290ffe7db22a8131a5f5fd026335090fbbeaffected
LinuxLinux776976a67ae25d18be42794fd783a50757402cbe < 7721cf32efa428bd9649f4a9b89fc85601df87deaffected
LinuxLinux776976a67ae25d18be42794fd783a50757402cbe < f9c43246128a2dd0f2bbad71decf153910ce3606affected
LinuxLinux776976a67ae25d18be42794fd783a50757402cbe < 150d3f3c461345b6c9ae784912cf1e49c8e5ff6baffected
LinuxLinux776976a67ae25d18be42794fd783a50757402cbe < b2e68583c7c51eea2aafb8f1793e0d285c56ac82affected
LinuxLinux776976a67ae25d18be42794fd783a50757402cbe < 6648c470918371766f6d368113dd2a4faebac93faffected
LinuxLinux776976a67ae25d18be42794fd783a50757402cbe < 6be64cca6527f7fc99b05abf54f22db91bbc116faffected
LinuxLinux776976a67ae25d18be42794fd783a50757402cbe < 41d541e3718db01668a4cd29815ee4b3b55f76d2affected
LinuxLinux3.17affected
LinuxLinux0 < 3.17unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References