{"id":"CVE-2026-72334","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: fix malformed ISO_END/CONT handling\n\nCore specification (Part C vol 4 sec 5.4.5) does not exclude empty\nISO_CONT, ISO_END packets","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: fix malformed ISO_END/CONT handling\n\nCore specification (Part C vol 4 sec 5.4.5) does not exclude empty\nISO_CONT, ISO_END packets.  We currently reject …","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= ccf74f2390d60a2f9a75ef496d2564abb478f46a < 49aeb54e3c912ef785311264a51ab9f3698e421b","Linux >= ccf74f2390d60a2f9a75ef496d2564abb478f46a < 5e53e285f8c989662e34d4938c728a94226bff34","Linux >= ccf74f2390d60a2f9a75ef496d2564abb478f46a < 990e65eb9387c4ddfa7f68782b6644c2c35d489f","Linux >= ccf74f2390d60a2f9a75ef496d2564abb478f46a < e054c1a6ae7310d2815778fddb87da616e11c255","Linux 6.0"],"published":"2026-08-15","updated":"2026-09-21","sourceUpdated":"2026-09-21T14:17:17.147","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72334","references":[{"url":"https://git.kernel.org/stable/c/49aeb54e3c912ef785311264a51ab9f3698e421b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5e53e285f8c989662e34d4938c728a94226bff34","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/990e65eb9387c4ddfa7f68782b6644c2c35d489f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e054c1a6ae7310d2815778fddb87da616e11c255","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00341,"epssPercentile":0.27589,"ingestedAt":"2026-09-21T13:37:22.844Z","slug":"CVE-2026-72334","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: fix malformed ISO_END/CONT handling\n\nCore specification (Part C vol 4 sec 5.4.5) does not exclude empty\nISO_CONT, ISO_END packets.  We currently reject them if they are last.\n\nIf controller sends malformed sequence\n\n    ISO_START -> rx_len = 4, ISO_CONT skb->len 4, ISO_START\n\nthat ends payload in ISO_CONT, we leak conn->rx_skb. If controller sends\ntoo long ISO_END, we panic on skb_put. If controller sends too short\nISO_END we accept it.\n\nFix by marking unfinished ISO_START via conn->rx_skb != NULL.  Check\nskb->len properly before skb_put.  Combine the ISO_CONT/END code paths\nas they require the same initial checks. Reject too short ISO_END\npackets.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}