{"schema":"threatline.record/2","record":{"id":"CVE-2026-97929","aliases":[],"summary":"ALSA: usbusx2y: validate URB actual_length in interrupt callback","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usbusx2y: validate URB actual_length in interrupt callback\n\ni_usx2y_in04_int() processes the interrupt URB data without checking\nurb->actual_length.  A short transfer from a malfunctioning device\nwould cause the handler to process uninitialized heap data from the\nkmalloc-allocated in04_buf, which is then copied to the mmap-accessible\nctl_snapshot[] array.\n\nFix by using kzalloc() for in04_buf to zero-initialize the buffer,\nand adding an actual_length check to skip processing on short\ntransfers while still resubmitting the URB.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97929","source_modified_at":"2026-10-21T12:53:41.045Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"c3576cb77b527f223cf2b9fc2b2e9af5e7adee25","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"c156584999bf15118f523ef6c6fedc5b21f46bd9","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"b0c30fe6c0d5902bd8a7d1d5720bead5bbe46f7d","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"2770321b358658e0a39fe39ccf6a91ee97a81931","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"8f5ef203abda9dd36b2af473c7b737d544f807bd","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97929","source_modified_at":"2026-10-21T12:53:41.045Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","lessThan":"2.6.12","status":"unaffected","versionType":"semver"},{"version":"6.6.160","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.111","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.53","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.7","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97929","source_modified_at":"2026-10-21T12:53:41.045Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"2770321b358658e0a39fe39ccf6a91ee97a81931","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97929","source_modified_at":"2026-10-21T12:53:41.045Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"8f5ef203abda9dd36b2af473c7b737d544f807bd","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.002,"percentile":0.09328,"score_date":"2026-10-23"},"published_at":"2026-09-25T10:22:46.082Z","modified_at":"2026-10-21T12:53:41.045Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-97929","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-21T12:53:41.045Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-97929","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/c3576cb77b527f223cf2b9fc2b2e9af5e7adee25"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/c156584999bf15118f523ef6c6fedc5b21f46bd9"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/b0c30fe6c0d5902bd8a7d1d5720bead5bbe46f7d"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/2770321b358658e0a39fe39ccf6a91ee97a81931"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/8f5ef203abda9dd36b2af473c7b737d544f807bd"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-21T12:53:41.045Z","content_hash":"993acfb6fde494187eaaf1b08e3c963298fc9480a94e7bef5ff2506dec9ea743"}}