{"api_version":"1","generated_at":"2026-05-28T04:23:44+00:00","cve":"CVE-2026-46074","urls":{"html":"https://cve.report/CVE-2026-46074","api":"https://cve.report/api/cve/CVE-2026-46074.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46074","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46074"},"summary":{"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).","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:28","updated_at":"2026-05-27 14:48:03"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/ff8a7996dc8bf433efe2126ffdaee5b374a89e30","name":"https://git.kernel.org/stable/c/ff8a7996dc8bf433efe2126ffdaee5b374a89e30","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b99e3ddb91b499d920e63a2daff8880be68cfe9e","name":"https://git.kernel.org/stable/c/b99e3ddb91b499d920e63a2daff8880be68cfe9e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9bee2faf9e21c796d0d222c9d84a98f41bd303a0","name":"https://git.kernel.org/stable/c/9bee2faf9e21c796d0d222c9d84a98f41bd303a0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5c6518633702d7f7b1153e9d8e042af847f11ef3","name":"https://git.kernel.org/stable/c/5c6518633702d7f7b1153e9d8e042af847f11ef3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46074","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46074","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8846739f52afa07e63395c80227dc544f54bd7b1 5c6518633702d7f7b1153e9d8e042af847f11ef3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8846739f52afa07e63395c80227dc544f54bd7b1 ff8a7996dc8bf433efe2126ffdaee5b374a89e30 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8846739f52afa07e63395c80227dc544f54bd7b1 9bee2faf9e21c796d0d222c9d84a98f41bd303a0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8846739f52afa07e63395c80227dc544f54bd7b1 b99e3ddb91b499d920e63a2daff8880be68cfe9e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.11","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.11 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.86 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.27 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.4 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/spi/spi-ch341.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"5c6518633702d7f7b1153e9d8e042af847f11ef3","status":"affected","version":"8846739f52afa07e63395c80227dc544f54bd7b1","versionType":"git"},{"lessThan":"ff8a7996dc8bf433efe2126ffdaee5b374a89e30","status":"affected","version":"8846739f52afa07e63395c80227dc544f54bd7b1","versionType":"git"},{"lessThan":"9bee2faf9e21c796d0d222c9d84a98f41bd303a0","status":"affected","version":"8846739f52afa07e63395c80227dc544f54bd7b1","versionType":"git"},{"lessThan":"b99e3ddb91b499d920e63a2daff8880be68cfe9e","status":"affected","version":"8846739f52afa07e63395c80227dc544f54bd7b1","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/spi/spi-ch341.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.11"},{"lessThan":"6.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.86","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.27","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.86","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.27","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.4","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1-rc1","versionStartIncluding":"6.11","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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)."}],"providerMetadata":{"dateUpdated":"2026-05-27T12:58:04.703Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}],"title":"spi: ch341: fix memory leaks on probe failures","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46074","datePublished":"2026-05-27T12:58:04.703Z","dateReserved":"2026-05-13T15:03:33.096Z","dateUpdated":"2026-05-27T12:58:04.703Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:28","lastModifiedDate":"2026-05-27 14:48:03","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46074","Ordinal":"1","Title":"spi: ch341: fix memory leaks on probe failures","CVE":"CVE-2026-46074","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46074","Ordinal":"1","NoteData":"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).","Type":"Description","Title":"spi: ch341: fix memory leaks on probe failures"}]}}}