{"api_version":"1","generated_at":"2026-05-28T04:23:44+00:00","cve":"CVE-2026-46103","urls":{"html":"https://cve.report/CVE-2026-46103","api":"https://cve.report/api/cve/CVE-2026-46103.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46103","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46103"},"summary":{"title":"can: ucan: fix devres lifetime","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: ucan: fix devres lifetime\n\nUSB drivers bind to USB interfaces and any device managed resources\nshould have their lifetime tied to the interface rather than parent USB\ndevice. This avoids issues like memory leaks when drivers are unbound\nwithout their devices being physically disconnected (e.g. on probe\ndeferral or configuration changes).\n\nFix the control message buffer lifetime so that it is released on driver\nunbind.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:32","updated_at":"2026-05-27 14:48:03"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/4b7d07747400cfd7eff1ba7b8b5a7c8d5a58f705","name":"https://git.kernel.org/stable/c/4b7d07747400cfd7eff1ba7b8b5a7c8d5a58f705","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c0d3ccc6929e4509076df8f30a4fb1dc5018b0ae","name":"https://git.kernel.org/stable/c/c0d3ccc6929e4509076df8f30a4fb1dc5018b0ae","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fed4626501c871890da287bec62a96e52da1af89","name":"https://git.kernel.org/stable/c/fed4626501c871890da287bec62a96e52da1af89","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c524c124e3094d2de12235a513854c03d06a2b58","name":"https://git.kernel.org/stable/c/c524c124e3094d2de12235a513854c03d06a2b58","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/10b7b676b78a7bd888d19729b459aad7fc1f428b","name":"https://git.kernel.org/stable/c/10b7b676b78a7bd888d19729b459aad7fc1f428b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46103","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46103","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9f2d3eae88d26c29d96e42983b755940d9169cd9 4b7d07747400cfd7eff1ba7b8b5a7c8d5a58f705 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9f2d3eae88d26c29d96e42983b755940d9169cd9 10b7b676b78a7bd888d19729b459aad7fc1f428b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9f2d3eae88d26c29d96e42983b755940d9169cd9 c524c124e3094d2de12235a513854c03d06a2b58 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9f2d3eae88d26c29d96e42983b755940d9169cd9 c0d3ccc6929e4509076df8f30a4fb1dc5018b0ae git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9f2d3eae88d26c29d96e42983b755940d9169cd9 fed4626501c871890da287bec62a96e52da1af89 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.140 6.6.* 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/net/can/usb/ucan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4b7d07747400cfd7eff1ba7b8b5a7c8d5a58f705","status":"affected","version":"9f2d3eae88d26c29d96e42983b755940d9169cd9","versionType":"git"},{"lessThan":"10b7b676b78a7bd888d19729b459aad7fc1f428b","status":"affected","version":"9f2d3eae88d26c29d96e42983b755940d9169cd9","versionType":"git"},{"lessThan":"c524c124e3094d2de12235a513854c03d06a2b58","status":"affected","version":"9f2d3eae88d26c29d96e42983b755940d9169cd9","versionType":"git"},{"lessThan":"c0d3ccc6929e4509076df8f30a4fb1dc5018b0ae","status":"affected","version":"9f2d3eae88d26c29d96e42983b755940d9169cd9","versionType":"git"},{"lessThan":"fed4626501c871890da287bec62a96e52da1af89","status":"affected","version":"9f2d3eae88d26c29d96e42983b755940d9169cd9","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/can/usb/ucan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","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":"6.6.140","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.86","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.27","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.4","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1-rc1","versionStartIncluding":"4.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: ucan: fix devres lifetime\n\nUSB drivers bind to USB interfaces and any device managed resources\nshould have their lifetime tied to the interface rather than parent USB\ndevice. This avoids issues like memory leaks when drivers are unbound\nwithout their devices being physically disconnected (e.g. on probe\ndeferral or configuration changes).\n\nFix the control message buffer lifetime so that it is released on driver\nunbind."}],"providerMetadata":{"dateUpdated":"2026-05-27T12:59:11.533Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/4b7d07747400cfd7eff1ba7b8b5a7c8d5a58f705"},{"url":"https://git.kernel.org/stable/c/10b7b676b78a7bd888d19729b459aad7fc1f428b"},{"url":"https://git.kernel.org/stable/c/c524c124e3094d2de12235a513854c03d06a2b58"},{"url":"https://git.kernel.org/stable/c/c0d3ccc6929e4509076df8f30a4fb1dc5018b0ae"},{"url":"https://git.kernel.org/stable/c/fed4626501c871890da287bec62a96e52da1af89"}],"title":"can: ucan: fix devres lifetime","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46103","datePublished":"2026-05-27T12:59:11.533Z","dateReserved":"2026-05-13T15:03:33.097Z","dateUpdated":"2026-05-27T12:59:11.533Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:32","lastModifiedDate":"2026-05-27 14:48:03","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46103","Ordinal":"1","Title":"can: ucan: fix devres lifetime","CVE":"CVE-2026-46103","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46103","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: ucan: fix devres lifetime\n\nUSB drivers bind to USB interfaces and any device managed resources\nshould have their lifetime tied to the interface rather than parent USB\ndevice. This avoids issues like memory leaks when drivers are unbound\nwithout their devices being physically disconnected (e.g. on probe\ndeferral or configuration changes).\n\nFix the control message buffer lifetime so that it is released on driver\nunbind.","Type":"Description","Title":"can: ucan: fix devres lifetime"}]}}}