{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64128","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T07:54:57.036Z","datePublished":"2026-07-19T15:40:24.678Z","dateUpdated":"2026-07-19T15:40:24.678Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-07-19T15:40:24.678Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: drop ISO_END frames received without prior ISO_START\n\nISO data PDUs carry a packet-boundary flag indicating START, CONT, END\nor SINGLE. The ISO_CONT branch of iso_recv() guards against a missing\nISO_START by checking conn->rx_len before touching conn->rx_skb, but\nISO_END does not.\n\nIf a peer sends an ISO_END as the first packet on a fresh ISO\nconnection, conn->rx_skb is still NULL and conn->rx_len is zero, so\nskb_put(conn->rx_skb, ...) dereferences NULL and oopses. For BIS,\nwhere receivers sync to a broadcaster without pairing, any broadcaster\non the air can trigger this.\n\nMirror the ISO_CONT check at the top of ISO_END so a stray end fragment\nis logged and dropped instead of crashing the host."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/iso.c"],"versions":[{"version":"ccf74f2390d60a2f9a75ef496d2564abb478f46a","lessThan":"1c3d1e1696b72579b970e17999c503a14535205b","status":"affected","versionType":"git"},{"version":"ccf74f2390d60a2f9a75ef496d2564abb478f46a","lessThan":"3af41ee7ebecb0d5c8a504861f6cfad31345310f","status":"affected","versionType":"git"},{"version":"ccf74f2390d60a2f9a75ef496d2564abb478f46a","lessThan":"39f4a82e80c8f5ed2d6952d73fbafc895721a728","status":"affected","versionType":"git"},{"version":"ccf74f2390d60a2f9a75ef496d2564abb478f46a","lessThan":"61f2410a96dee808029e2ae4d6ef2dd635f3477f","status":"affected","versionType":"git"},{"version":"ccf74f2390d60a2f9a75ef496d2564abb478f46a","lessThan":"e3a799881c12d27596232636a607e2e3fa448d63","status":"affected","versionType":"git"},{"version":"ccf74f2390d60a2f9a75ef496d2564abb478f46a","lessThan":"84c24fb151fc1179355296d7ff29129ac7c42129","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/iso.c"],"versions":[{"version":"6.0","status":"affected"},{"version":"0","lessThan":"6.0","status":"unaffected","versionType":"semver"},{"version":"6.1.175","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.142","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.92","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.34","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.11","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.6.142"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.12.92"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.18.34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"7.0.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/1c3d1e1696b72579b970e17999c503a14535205b"},{"url":"https://git.kernel.org/stable/c/3af41ee7ebecb0d5c8a504861f6cfad31345310f"},{"url":"https://git.kernel.org/stable/c/39f4a82e80c8f5ed2d6952d73fbafc895721a728"},{"url":"https://git.kernel.org/stable/c/61f2410a96dee808029e2ae4d6ef2dd635f3477f"},{"url":"https://git.kernel.org/stable/c/e3a799881c12d27596232636a607e2e3fa448d63"},{"url":"https://git.kernel.org/stable/c/84c24fb151fc1179355296d7ff29129ac7c42129"}],"title":"Bluetooth: ISO: drop ISO_END frames received without prior ISO_START","x_generator":{"engine":"bippy-1.2.0"}}}}