{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74535", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.913Z", "datePublished": "2026-08-15T12:27:48.449Z", "dateUpdated": "2026-08-15T12:27:48.449Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T12:27:48.449Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: avoid deadlocks in iso_sock_timeout\n\niso_sock_timeout() takes lock_sock, so sync disabling the timer while\nholding that lock may deadlock.\n\niso_sock_timeout() may also run concurrently with iso_conn_del(), which\nleads to UAF\n\n [Task 1] [Task hdev->workqueue]\n iso_sock_timeout iso_conn_del\n iso_conn_hold_unless_zero iso_chan_del\n `------------> iso_conn_put\n caller frees hcon\n iso_conn_put\n iso_conn_free\n conn->hcon->iso_data = NULL; /* UAF */\n\nFix the deadlock by removing the disable from the lock_sock sections.\nMove the timer from iso_conn to iso_pinfo to decouple it from iso_conn\nwhich may need to be freed in lock_sock section. Convert some of the\nclear_timer to disable_timer."}], "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": "a58d0f5dac322e16cc75334d000666512341bde5", "lessThan": "16d89a63e08280abeef7218970a3bbd7ca62b021", "status": "affected", "versionType": "git"}, {"version": "dc26097bdb864a0d5955b9a25e43376ffc1af99b", "lessThan": "82e982f54f962f72646868ddbb2c3bd9ea178568", "status": "affected", "versionType": "git"}, {"version": "dc26097bdb864a0d5955b9a25e43376ffc1af99b", "lessThan": "3c3d5f85db80145636bb991a6005e2760012b985", "status": "affected", "versionType": "git"}, {"version": "dc26097bdb864a0d5955b9a25e43376ffc1af99b", "lessThan": "200fa1629c57a3ca2b03d3ca63fd3a9bfd910c43", "status": "affected", "versionType": "git"}, {"version": "f53e7489273dc2bb307bf50f319b3762d45534f0", "status": "affected", "versionType": "git"}, {"version": "6.12.2", "lessThan": "6.12.103", "status": "affected", "versionType": "semver"}, {"version": "6.11.11", "lessThan": "6.12", "status": "affected", "versionType": "semver"}]}, {"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": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.103", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.44", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.8", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc6", "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": "6.12.2", "versionEndExcluding": "6.12.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.18.44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.1.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.2-rc6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11.11"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/16d89a63e08280abeef7218970a3bbd7ca62b021"}, {"url": "https://git.kernel.org/stable/c/82e982f54f962f72646868ddbb2c3bd9ea178568"}, {"url": "https://git.kernel.org/stable/c/3c3d5f85db80145636bb991a6005e2760012b985"}, {"url": "https://git.kernel.org/stable/c/200fa1629c57a3ca2b03d3ca63fd3a9bfd910c43"}], "title": "Bluetooth: ISO: avoid deadlocks in iso_sock_timeout", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/bluetooth/iso.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "16d89a63e08280abeef7218970a3bbd7ca62b021", "status": "affected", "version": "a58d0f5dac322e16cc75334d000666512341bde5", "versionType": "git"}, {"lessThan": "82e982f54f962f72646868ddbb2c3bd9ea178568", "status": "affected", "version": "dc26097bdb864a0d5955b9a25e43376ffc1af99b", "versionType": "git"}, {"lessThan": "3c3d5f85db80145636bb991a6005e2760012b985", "status": "affected", "version": "dc26097bdb864a0d5955b9a25e43376ffc1af99b", "versionType": "git"}, {"lessThan": "200fa1629c57a3ca2b03d3ca63fd3a9bfd910c43", "status": "affected", "version": "dc26097bdb864a0d5955b9a25e43376ffc1af99b", "versionType": "git"}, {"status": "affected", "version": "f53e7489273dc2bb307bf50f319b3762d45534f0", "versionType": "git"}, {"lessThan": "6.12.103", "status": "affected", "version": "6.12.2", "versionType": "semver"}, {"lessThan": "6.12", "status": "affected", "version": "6.11.11", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/bluetooth/iso.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.103", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.44", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc6", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: avoid deadlocks in iso_sock_timeout\n\niso_sock_timeout() takes lock_sock, so sync disabling the timer while\nholding that lock may deadlock.\n\niso_sock_timeout() may also run concurrently with iso_conn_del(), which\nleads to UAF\n\n [Task 1] [Task hdev->workqueue]\n iso_sock_timeout iso_conn_del\n iso_conn_hold_unless_zero iso_chan_del\n `------------> iso_conn_put\n caller frees hcon\n iso_conn_put\n iso_conn_free\n conn->hcon->iso_data = NULL; /* UAF */\n\nFix the deadlock by removing the disable from the lock_sock sections.\nMove the timer from iso_conn to iso_pinfo to decouple it from iso_conn\nwhich may need to be freed in lock_sock section. Convert some of the\nclear_timer to disable_timer."}], "id": "CVE-2026-74535", "lastModified": "2026-08-15T13:17:58.837", "metrics": {}, "published": "2026-08-15T13:17:58.837", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/16d89a63e08280abeef7218970a3bbd7ca62b021"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/200fa1629c57a3ca2b03d3ca63fd3a9bfd910c43"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3c3d5f85db80145636bb991a6005e2760012b985"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/82e982f54f962f72646868ddbb2c3bd9ea178568"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"created": "2026-08-15T14:45:03.920318+00:00", "updated": "2026-08-15T14:45:03.920325+00:00", "vendors": [], "weaknesses": ["CWE-416", "CWE-362"]}