{"id":"CVE-2026-93141","state":"PUBLISHED","title":"usb: gadget: r8a66597: avoid double free of ep0_req in probe error path","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: r8a66597: avoid double free of ep0_req in probe error path\n\nIf usb_add_gadget_udc() fails, r8a66597_probe() jumps to err_add_udc\nand frees ep0_req, then falls through to clean_up2 where ep0_req is\nfreed again when it is non-NULL.\n\nRemove the redundant free from err_add_udc and keep the cleanup in\nclean_up2 so the request is released exactly once.\n\nIssue found using a prototype static analysis tool\nand confirmed by code review.","publishedAt":"2026-09-17T16:11:40.761Z","updatedAt":"2026-10-19T09:06:13.931Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"c9e93290ffe7db22a8131a5f5fd026335090fbbe","versionType":"git"},{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"7721cf32efa428bd9649f4a9b89fc85601df87de","versionType":"git"},{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"f9c43246128a2dd0f2bbad71decf153910ce3606","versionType":"git"},{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"150d3f3c461345b6c9ae784912cf1e49c8e5ff6b","versionType":"git"},{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"b2e68583c7c51eea2aafb8f1793e0d285c56ac82","versionType":"git"},{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"6648c470918371766f6d368113dd2a4faebac93f","versionType":"git"},{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"6be64cca6527f7fc99b05abf54f22db91bbc116f","versionType":"git"},{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"41d541e3718db01668a4cd29815ee4b3b55f76d2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/gadget/udc/r8a66597-udc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.17","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/gadget/udc/r8a66597-udc.c"]}],"references":["https://git.kernel.org/stable/c/c9e93290ffe7db22a8131a5f5fd026335090fbbe","https://git.kernel.org/stable/c/7721cf32efa428bd9649f4a9b89fc85601df87de","https://git.kernel.org/stable/c/f9c43246128a2dd0f2bbad71decf153910ce3606","https://git.kernel.org/stable/c/150d3f3c461345b6c9ae784912cf1e49c8e5ff6b","https://git.kernel.org/stable/c/b2e68583c7c51eea2aafb8f1793e0d285c56ac82","https://git.kernel.org/stable/c/6648c470918371766f6d368113dd2a4faebac93f","https://git.kernel.org/stable/c/6be64cca6527f7fc99b05abf54f22db91bbc116f","https://git.kernel.org/stable/c/41d541e3718db01668a4cd29815ee4b3b55f76d2"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93141.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93141","state":"PUBLISHED","datePublished":"2026-09-17T16:11:40.761Z","dateUpdated":"2026-10-19T09:06:13.931Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-17T16:02:15.088Z"},"containers":{"cna":{"title":"usb: gadget: r8a66597: avoid double free of ep0_req in probe error path","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: r8a66597: avoid double free of ep0_req in probe error path\n\nIf usb_add_gadget_udc() fails, r8a66597_probe() jumps to err_add_udc\nand frees ep0_req, then falls through to clean_up2 where ep0_req is\nfreed again when it is non-NULL.\n\nRemove the redundant free from err_add_udc and keep the cleanup in\nclean_up2 so the request is released exactly once.\n\nIssue found using a prototype static analysis tool\nand confirmed by code review."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"c9e93290ffe7db22a8131a5f5fd026335090fbbe","versionType":"git"},{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"7721cf32efa428bd9649f4a9b89fc85601df87de","versionType":"git"},{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"f9c43246128a2dd0f2bbad71decf153910ce3606","versionType":"git"},{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"150d3f3c461345b6c9ae784912cf1e49c8e5ff6b","versionType":"git"},{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"b2e68583c7c51eea2aafb8f1793e0d285c56ac82","versionType":"git"},{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"6648c470918371766f6d368113dd2a4faebac93f","versionType":"git"},{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"6be64cca6527f7fc99b05abf54f22db91bbc116f","versionType":"git"},{"version":"776976a67ae25d18be42794fd783a50757402cbe","status":"affected","lessThan":"41d541e3718db01668a4cd29815ee4b3b55f76d2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/gadget/udc/r8a66597-udc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.17","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/gadget/udc/r8a66597-udc.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c9e93290ffe7db22a8131a5f5fd026335090fbbe"},{"url":"https://git.kernel.org/stable/c/7721cf32efa428bd9649f4a9b89fc85601df87de"},{"url":"https://git.kernel.org/stable/c/f9c43246128a2dd0f2bbad71decf153910ce3606"},{"url":"https://git.kernel.org/stable/c/150d3f3c461345b6c9ae784912cf1e49c8e5ff6b"},{"url":"https://git.kernel.org/stable/c/b2e68583c7c51eea2aafb8f1793e0d285c56ac82"},{"url":"https://git.kernel.org/stable/c/6648c470918371766f6d368113dd2a4faebac93f"},{"url":"https://git.kernel.org/stable/c/6be64cca6527f7fc99b05abf54f22db91bbc116f"},{"url":"https://git.kernel.org/stable/c/41d541e3718db01668a4cd29815ee4b3b55f76d2"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:06:13.931Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"5.10.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}