{"api_version":"1","generated_at":"2026-08-22T04:38:18+00:00","cve":"CVE-2026-72403","urls":{"html":"https://cve.report/CVE-2026-72403","api":"https://cve.report/api/cve/CVE-2026-72403.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-72403","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-72403"},"summary":{"title":"ALSA: FCP: Fix NULL pointer dereference in interface lookup","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: FCP: Fix NULL pointer dereference in interface lookup\n\nA malformed USB device can provide a vendor-specific interface without\nany endpoint descriptors. fcp_find_fc_interface() currently selects the\nfirst vendor-specific interface and reads endpoint 0 from it, without\nchecking whether the interface actually has any endpoints.\n\nWhen bNumEndpoints is zero, no endpoint array is allocated for the parsed\nalternate setting, so get_endpoint(..., 0) yields an invalid endpoint\ndescriptor pointer. Dereferencing it through usb_endpoint_num() then\ntriggers a NULL pointer dereference.\n\nSkip vendor-specific interfaces that do not have any endpoints.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:13","updated_at":"2026-08-17 06:19:06"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/f28d7b5f1578a7501ab17b10643ed1e4f729187e","name":"https://git.kernel.org/stable/c/f28d7b5f1578a7501ab17b10643ed1e4f729187e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3ab06151ffcb8c3aeb8f78508658b6c0f05be932","name":"https://git.kernel.org/stable/c/3ab06151ffcb8c3aeb8f78508658b6c0f05be932","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e1e31e0ec8a609e17fd2e86b77bc00d9cbb24d7c","name":"https://git.kernel.org/stable/c/e1e31e0ec8a609e17fd2e86b77bc00d9cbb24d7c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72403","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72403","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 46757a3e7d50dac923888e7fbe68377736f13c70 f28d7b5f1578a7501ab17b10643ed1e4f729187e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 46757a3e7d50dac923888e7fbe68377736f13c70 3ab06151ffcb8c3aeb8f78508658b6c0f05be932 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 46757a3e7d50dac923888e7fbe68377736f13c70 e1e31e0ec8a609e17fd2e86b77bc00d9cbb24d7c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.14","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.40 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"72403","cve":"CVE-2026-72403","epss":"0.001980000","percentile":"0.099060000","score_date":"2026-08-17","updated_at":"2026-08-18 00:11:47"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["sound/usb/fcp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f28d7b5f1578a7501ab17b10643ed1e4f729187e","status":"affected","version":"46757a3e7d50dac923888e7fbe68377736f13c70","versionType":"git"},{"lessThan":"3ab06151ffcb8c3aeb8f78508658b6c0f05be932","status":"affected","version":"46757a3e7d50dac923888e7fbe68377736f13c70","versionType":"git"},{"lessThan":"e1e31e0ec8a609e17fd2e86b77bc00d9cbb24d7c","status":"affected","version":"46757a3e7d50dac923888e7fbe68377736f13c70","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["sound/usb/fcp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"6.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"6.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"6.14","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: FCP: Fix NULL pointer dereference in interface lookup\n\nA malformed USB device can provide a vendor-specific interface without\nany endpoint descriptors. fcp_find_fc_interface() currently selects the\nfirst vendor-specific interface and reads endpoint 0 from it, without\nchecking whether the interface actually has any endpoints.\n\nWhen bNumEndpoints is zero, no endpoint array is allocated for the parsed\nalternate setting, so get_endpoint(..., 0) yields an invalid endpoint\ndescriptor pointer. Dereferencing it through usb_endpoint_num() then\ntriggers a NULL pointer dereference.\n\nSkip vendor-specific interfaces that do not have any endpoints."}],"providerMetadata":{"dateUpdated":"2026-08-17T05:14:00.240Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/f28d7b5f1578a7501ab17b10643ed1e4f729187e"},{"url":"https://git.kernel.org/stable/c/3ab06151ffcb8c3aeb8f78508658b6c0f05be932"},{"url":"https://git.kernel.org/stable/c/e1e31e0ec8a609e17fd2e86b77bc00d9cbb24d7c"}],"title":"ALSA: FCP: Fix NULL pointer dereference in interface lookup","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-72403","datePublished":"2026-08-15T05:56:27.464Z","dateReserved":"2026-08-09T03:40:39.925Z","dateUpdated":"2026-08-17T05:14:00.240Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:13","lastModifiedDate":"2026-08-17 06:19:06","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"72403","Ordinal":"1","Title":"ALSA: FCP: Fix NULL pointer dereference in interface lookup","CVE":"CVE-2026-72403","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"72403","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: FCP: Fix NULL pointer dereference in interface lookup\n\nA malformed USB device can provide a vendor-specific interface without\nany endpoint descriptors. fcp_find_fc_interface() currently selects the\nfirst vendor-specific interface and reads endpoint 0 from it, without\nchecking whether the interface actually has any endpoints.\n\nWhen bNumEndpoints is zero, no endpoint array is allocated for the parsed\nalternate setting, so get_endpoint(..., 0) yields an invalid endpoint\ndescriptor pointer. Dereferencing it through usb_endpoint_num() then\ntriggers a NULL pointer dereference.\n\nSkip vendor-specific interfaces that do not have any endpoints.","Type":"Description","Title":"ALSA: FCP: Fix NULL pointer dereference in interface lookup"}]}}}