{"id":"CVE-2026-46074","state":"PUBLISHED","title":"spi: ch341: fix memory leaks on probe failures","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nspi: ch341: fix memory leaks on probe failures\n\nMake sure to deregister the controller, disable pins, and kill and free\nthe RX URB on probe failures to mirror disconnect and avoid memory\nleaks and use-after-free.\n\nAlso add an explicit URB kill on disconnect for symmetry (even if that\nis not strictly required as USB core would have stopped it in the\ncurrent setup).","publishedAt":"2026-05-27T12:58:04.703Z","updatedAt":"2026-06-14T17:52:24.650Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8846739f52afa07e63395c80227dc544f54bd7b1","status":"affected","lessThan":"5c6518633702d7f7b1153e9d8e042af847f11ef3","versionType":"git"},{"version":"8846739f52afa07e63395c80227dc544f54bd7b1","status":"affected","lessThan":"ff8a7996dc8bf433efe2126ffdaee5b374a89e30","versionType":"git"},{"version":"8846739f52afa07e63395c80227dc544f54bd7b1","status":"affected","lessThan":"9bee2faf9e21c796d0d222c9d84a98f41bd303a0","versionType":"git"},{"version":"8846739f52afa07e63395c80227dc544f54bd7b1","status":"affected","lessThan":"b99e3ddb91b499d920e63a2daff8880be68cfe9e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/spi/spi-ch341.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.86","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.27","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.4","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/spi/spi-ch341.c"]}],"references":["https://git.kernel.org/stable/c/5c6518633702d7f7b1153e9d8e042af847f11ef3","https://git.kernel.org/stable/c/ff8a7996dc8bf433efe2126ffdaee5b374a89e30","https://git.kernel.org/stable/c/9bee2faf9e21c796d0d222c9d84a98f41bd303a0","https://git.kernel.org/stable/c/b99e3ddb91b499d920e63a2daff8880be68cfe9e"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/46xxx/CVE-2026-46074.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46074","state":"PUBLISHED","datePublished":"2026-05-27T12:58:04.703Z","dateUpdated":"2026-06-14T17:52:24.650Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-13T15:03:33.096Z"},"containers":{"cna":{"title":"spi: ch341: fix memory leaks on probe failures","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nspi: ch341: fix memory leaks on probe failures\n\nMake sure to deregister the controller, disable pins, and kill and free\nthe RX URB on probe failures to mirror disconnect and avoid memory\nleaks and use-after-free.\n\nAlso add an explicit URB kill on disconnect for symmetry (even if that\nis not strictly required as USB core would have stopped it in the\ncurrent setup)."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8846739f52afa07e63395c80227dc544f54bd7b1","status":"affected","lessThan":"5c6518633702d7f7b1153e9d8e042af847f11ef3","versionType":"git"},{"version":"8846739f52afa07e63395c80227dc544f54bd7b1","status":"affected","lessThan":"ff8a7996dc8bf433efe2126ffdaee5b374a89e30","versionType":"git"},{"version":"8846739f52afa07e63395c80227dc544f54bd7b1","status":"affected","lessThan":"9bee2faf9e21c796d0d222c9d84a98f41bd303a0","versionType":"git"},{"version":"8846739f52afa07e63395c80227dc544f54bd7b1","status":"affected","lessThan":"b99e3ddb91b499d920e63a2daff8880be68cfe9e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/spi/spi-ch341.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.86","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.27","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.4","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/spi/spi-ch341.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/5c6518633702d7f7b1153e9d8e042af847f11ef3"},{"url":"https://git.kernel.org/stable/c/ff8a7996dc8bf433efe2126ffdaee5b374a89e30"},{"url":"https://git.kernel.org/stable/c/9bee2faf9e21c796d0d222c9d84a98f41bd303a0"},{"url":"https://git.kernel.org/stable/c/b99e3ddb91b499d920e63a2daff8880be68cfe9e"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-14T17:52:24.650Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.12.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.18.27"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"7.0.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}