{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74302", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.882Z", "datePublished": "2026-08-15T05:58:04.638Z", "dateUpdated": "2026-08-15T05:58:04.638Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T05:58:04.638Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_core: Fix UAF in hci_unregister_dev()\n\nhci_unregister_dev() does not disable cmd_timer and ncmd_timer\nbefore the hci_dev structure is freed. If a timeout fires\nduring device teardown, the callback dereferences freed memory\n(including the hdev->reset function pointer), leading to a\nuse-after-free.\n\nAdd disable_delayed_work_sync() calls alongside the existing\ndisable_work_sync() calls to ensure both timers are fully\nquiesced before teardown proceeds."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/hci_core.c"], "versions": [{"version": "0d151a103775dd9645c78c97f77d6e2a5298d913", "lessThan": "48c7ad6afcc58c2cda11fed39791708103b6a644", "status": "affected", "versionType": "git"}, {"version": "0d151a103775dd9645c78c97f77d6e2a5298d913", "lessThan": "a0fd1086a57b982f8c24ae4ab165c2af39fe1735", "status": "affected", "versionType": "git"}, {"version": "0d151a103775dd9645c78c97f77d6e2a5298d913", "lessThan": "672d52d9412252e61b8de8d773ccdf5a277cf540", "status": "affected", "versionType": "git"}, {"version": "0d151a103775dd9645c78c97f77d6e2a5298d913", "lessThan": "5edcc018fa6e80b2c478454a4a8229c23d67c181", "status": "affected", "versionType": "git"}, {"version": "48542881997e17b49dc16b93fe910e0cfcf7a9f9", "status": "affected", "versionType": "git"}, {"version": "9cfc84b1d464cc024286f42a090718f9067b80ed", "status": "affected", "versionType": "git"}, {"version": "ddeda6ca5f218b668b560d90fc31ae469adbfd92", "status": "affected", "versionType": "git"}, {"version": "d2ce562a5aff1dcd0c50d9808ea825ef90da909f", "status": "affected", "versionType": "git"}, {"version": "96600c2e5ee8213dbab5df1617293d8e847bb4fa", "status": "affected", "versionType": "git"}, {"version": "d6cbce18370641a21dd889e8613d8153df15eb39", "status": "affected", "versionType": "git"}, {"version": "3f939bd73fed12dddc2a32a76116c19ca47c7678", "status": "affected", "versionType": "git"}, {"version": "4.19.319", "lessThan": "4.20", "status": "affected", "versionType": "semver"}, {"version": "5.4.281", "lessThan": "5.5", "status": "affected", "versionType": "semver"}, {"version": "5.10.223", "lessThan": "5.11", "status": "affected", "versionType": "semver"}, {"version": "5.15.164", "lessThan": "5.16", "status": "affected", "versionType": "semver"}, {"version": "6.1.101", "lessThan": "6.2", "status": "affected", "versionType": "semver"}, {"version": "6.6.42", "lessThan": "6.7", "status": "affected", "versionType": "semver"}, {"version": "6.9.11", "lessThan": "6.10", "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/hci_core.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "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": "6.10", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.2-rc1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.319"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.281"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.223"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.164"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9.11"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/48c7ad6afcc58c2cda11fed39791708103b6a644"}, {"url": "https://git.kernel.org/stable/c/a0fd1086a57b982f8c24ae4ab165c2af39fe1735"}, {"url": "https://git.kernel.org/stable/c/672d52d9412252e61b8de8d773ccdf5a277cf540"}, {"url": "https://git.kernel.org/stable/c/5edcc018fa6e80b2c478454a4a8229c23d67c181"}], "title": "Bluetooth: hci_core: Fix UAF in hci_unregister_dev()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/bluetooth/hci_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "48c7ad6afcc58c2cda11fed39791708103b6a644", "status": "affected", "version": "0d151a103775dd9645c78c97f77d6e2a5298d913", "versionType": "git"}, {"lessThan": "a0fd1086a57b982f8c24ae4ab165c2af39fe1735", "status": "affected", "version": "0d151a103775dd9645c78c97f77d6e2a5298d913", "versionType": "git"}, {"lessThan": "672d52d9412252e61b8de8d773ccdf5a277cf540", "status": "affected", "version": "0d151a103775dd9645c78c97f77d6e2a5298d913", "versionType": "git"}, {"lessThan": "5edcc018fa6e80b2c478454a4a8229c23d67c181", "status": "affected", "version": "0d151a103775dd9645c78c97f77d6e2a5298d913", "versionType": "git"}, {"status": "affected", "version": "48542881997e17b49dc16b93fe910e0cfcf7a9f9", "versionType": "git"}, {"status": "affected", "version": "9cfc84b1d464cc024286f42a090718f9067b80ed", "versionType": "git"}, {"status": "affected", "version": "ddeda6ca5f218b668b560d90fc31ae469adbfd92", "versionType": "git"}, {"status": "affected", "version": "d2ce562a5aff1dcd0c50d9808ea825ef90da909f", "versionType": "git"}, {"status": "affected", "version": "96600c2e5ee8213dbab5df1617293d8e847bb4fa", "versionType": "git"}, {"status": "affected", "version": "d6cbce18370641a21dd889e8613d8153df15eb39", "versionType": "git"}, {"status": "affected", "version": "3f939bd73fed12dddc2a32a76116c19ca47c7678", "versionType": "git"}, {"lessThan": "4.20", "status": "affected", "version": "4.19.319", "versionType": "semver"}, {"lessThan": "5.5", "status": "affected", "version": "5.4.281", "versionType": "semver"}, {"lessThan": "5.11", "status": "affected", "version": "5.10.223", "versionType": "semver"}, {"lessThan": "5.16", "status": "affected", "version": "5.15.164", "versionType": "semver"}, {"lessThan": "6.2", "status": "affected", "version": "6.1.101", "versionType": "semver"}, {"lessThan": "6.7", "status": "affected", "version": "6.6.42", "versionType": "semver"}, {"lessThan": "6.10", "status": "affected", "version": "6.9.11", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/bluetooth/hci_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"lessThan": "6.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "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-rc1", "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: hci_core: Fix UAF in hci_unregister_dev()\n\nhci_unregister_dev() does not disable cmd_timer and ncmd_timer\nbefore the hci_dev structure is freed. If a timeout fires\nduring device teardown, the callback dereferences freed memory\n(including the hdev->reset function pointer), leading to a\nuse-after-free.\n\nAdd disable_delayed_work_sync() calls alongside the existing\ndisable_work_sync() calls to ensure both timers are fully\nquiesced before teardown proceeds."}], "id": "CVE-2026-74302", "lastModified": "2026-08-15T06:22:29.813", "metrics": {}, "published": "2026-08-15T06:22:29.813", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/48c7ad6afcc58c2cda11fed39791708103b6a644"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5edcc018fa6e80b2c478454a4a8229c23d67c181"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/672d52d9412252e61b8de8d773ccdf5a277cf540"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a0fd1086a57b982f8c24ae4ab165c2af39fe1735"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}