CVE-2026-80764

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80764", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.791Z", "datePublished": "2026-09-04T15:12:36.599Z", "dateUpdated": "2026-10-19T08:43:20.790Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:43:20.790Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_event: fix LE list UAF on reset\n\nhci_cc_reset() clears the LE accept and resolving lists without taking\nhdev->lock. Other command-complete handlers serialize updates to these\nlists with that lock, and the debugfs readers hold it while walking them.\n\nThis permits the reset completion and a debugfs read to interleave as\nfollows:\n\n hci_rx_work debugfs reader\n ----------- --------------\n lock hdev->lock\n fetch current entry\n list_del(entry)\n kfree(entry)\n read entry fields\n\nThe reader then dereferences a freed list entry and may follow its stale\nnext pointer.\n\nKASAN reported:\n\n BUG: KASAN: slab-use-after-free in white_list_show+0x15f/0x180\n Read of size 1 at addr ffff8881015dab16 by task poc/95\n\n Call Trace:\n white_list_show+0x15f/0x180\n seq_read_iter+0x3ff/0x1190\n seq_read+0x267/0x3d0\n vfs_read+0x177/0xa20\n ksys_read+0xf7/0x1c0\n\n Allocated by task 91:\n hci_bdaddr_list_add+0x1a6/0x3a0\n hci_cc_le_add_to_accept_list+0xab/0x140\n hci_cmd_complete_evt+0x26c/0x9a0\n hci_event_packet+0x454/0xb20\n hci_rx_work+0x293/0x730\n\n Freed by task 90:\n kfree+0x131/0x3c0\n hci_bdaddr_list_clear+0xd8/0x160\n hci_cc_reset+0x28a/0x370\n hci_cmd_complete_evt+0x26c/0x9a0\n hci_event_packet+0x454/0xb20\n hci_rx_work+0x293/0x730\n\nTake hdev->lock around both list clears. This matches the existing\nmutation and traversal locking convention."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/hci_event.c"], "versions": [{"version": "a4d5504d5c39cc84f1f828e19967595597a8136e", "lessThan": "8e68c380290b1dd64a0a512ce66d0264130c46ed", "status": "affected", "versionType": "git"}, {"version": "a4d5504d5c39cc84f1f828e19967595597a8136e", "lessThan": "0628cc9b2fa29985a7b8c774741f8a736b0f5e7c", "status": "affected", "versionType": "git"}, {"version": "a4d5504d5c39cc84f1f828e19967595597a8136e", "lessThan": "d57702d4c55633c243da5a2fec37ae2ad4adb621", "status": "affected", "versionType": "git"}, {"version": "a4d5504d5c39cc84f1f828e19967595597a8136e", "lessThan": "39a3afb91be3cb465f46ce7a8e5696d9e33edf93", "status": "affected", "versionType": "git"}, {"version": "a4d5504d5c39cc84f1f828e19967595597a8136e", "lessThan": "b55e83a4ba31d40deae22d4e4dc8c84083e953c6", "status": "affected", "versionType": "git"}, {"version": "a4d5504d5c39cc84f1f828e19967595597a8136e", "lessThan": "25b05e3ce31d954540e99954bcc66cbceb27ab35", "status": "affected", "versionType": "git"}, {"version": "a4d5504d5c39cc84f1f828e19967595597a8136e", "lessThan": "33af47e847fe4a28b109673affb5874015d54f5a", "status": "affected", "versionType": "git"}, {"version": "0de8cd646b0152c9ddd10257d8284938d0df0181", "status": "affected", "versionType": "git"}, {"version": "3.18.3", "lessThan": "3.19", "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_event.c"], "versions": [{"version": "3.19", "status": "affected"}, {"version": "0", "lessThan": "3.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.185", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.154", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.106", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.47", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.11", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.1", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "3.19", "versionEndExcluding": "6.1.185"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "6.6.154"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "6.12.106"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "6.18.47"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "7.1.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "7.2.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "7.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8e68c380290b1dd64a0a512ce66d0264130c46ed"}, {"url": "https://git.kernel.org/stable/c/0628cc9b2fa29985a7b8c774741f8a736b0f5e7c"}, {"url": "https://git.kernel.org/stable/c/d57702d4c55633c243da5a2fec37ae2ad4adb621"}, {"url": "https://git.kernel.org/stable/c/39a3afb91be3cb465f46ce7a8e5696d9e33edf93"}, {"url": "https://git.kernel.org/stable/c/b55e83a4ba31d40deae22d4e4dc8c84083e953c6"}, {"url": "https://git.kernel.org/stable/c/25b05e3ce31d954540e99954bcc66cbceb27ab35"}, {"url": "https://git.kernel.org/stable/c/33af47e847fe4a28b109673affb5874015d54f5a"}], "title": "Bluetooth: hci_event: fix LE list UAF on reset", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/bluetooth/hci_event.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "8e68c380290b1dd64a0a512ce66d0264130c46ed", "status": "affected", "version": "a4d5504d5c39cc84f1f828e19967595597a8136e", "versionType": "git"}, {"lessThan": "0628cc9b2fa29985a7b8c774741f8a736b0f5e7c", "status": "affected", "version": "a4d5504d5c39cc84f1f828e19967595597a8136e", "versionType": "git"}, {"lessThan": "d57702d4c55633c243da5a2fec37ae2ad4adb621", "status": "affected", "version": "a4d5504d5c39cc84f1f828e19967595597a8136e", "versionType": "git"}, {"lessThan": "39a3afb91be3cb465f46ce7a8e5696d9e33edf93", "status": "affected", "version": "a4d5504d5c39cc84f1f828e19967595597a8136e", "versionType": "git"}, {"lessThan": "b55e83a4ba31d40deae22d4e4dc8c84083e953c6", "status": "affected", "version": "a4d5504d5c39cc84f1f828e19967595597a8136e", "versionType": "git"}, {"lessThan": "25b05e3ce31d954540e99954bcc66cbceb27ab35", "status": "affected", "version": "a4d5504d5c39cc84f1f828e19967595597a8136e", "versionType": "git"}, {"lessThan": "33af47e847fe4a28b109673affb5874015d54f5a", "status": "affected", "version": "a4d5504d5c39cc84f1f828e19967595597a8136e", "versionType": "git"}, {"status": "affected", "version": "0de8cd646b0152c9ddd10257d8284938d0df0181", "versionType": "git"}, {"lessThan": "3.19", "status": "affected", "version": "3.18.3", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/bluetooth/hci_event.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.19"}, {"lessThan": "3.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.185", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.154", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.106", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.47", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.11", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.1", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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_event: fix LE list UAF on reset\n\nhci_cc_reset() clears the LE accept and resolving lists without taking\nhdev->lock. Other command-complete handlers serialize updates to these\nlists with that lock, and the debugfs readers hold it while walking them.\n\nThis permits the reset completion and a debugfs read to interleave as\nfollows:\n\n hci_rx_work debugfs reader\n ----------- --------------\n lock hdev->lock\n fetch current entry\n list_del(entry)\n kfree(entry)\n read entry fields\n\nThe reader then dereferences a freed list entry and may follow its stale\nnext pointer.\n\nKASAN reported:\n\n BUG: KASAN: slab-use-after-free in white_list_show+0x15f/0x180\n Read of size 1 at addr ffff8881015dab16 by task poc/95\n\n Call Trace:\n white_list_show+0x15f/0x180\n seq_read_iter+0x3ff/0x1190\n seq_read+0x267/0x3d0\n vfs_read+0x177/0xa20\n ksys_read+0xf7/0x1c0\n\n Allocated by task 91:\n hci_bdaddr_list_add+0x1a6/0x3a0\n hci_cc_le_add_to_accept_list+0xab/0x140\n hci_cmd_complete_evt+0x26c/0x9a0\n hci_event_packet+0x454/0xb20\n hci_rx_work+0x293/0x730\n\n Freed by task 90:\n kfree+0x131/0x3c0\n hci_bdaddr_list_clear+0xd8/0x160\n hci_cc_reset+0x28a/0x370\n hci_cmd_complete_evt+0x26c/0x9a0\n hci_event_packet+0x454/0xb20\n hci_rx_work+0x293/0x730\n\nTake hdev->lock around both list clears. This matches the existing\nmutation and traversal locking convention."}], "id": "CVE-2026-80764", "lastModified": "2026-10-19T09:17:10.270", "metrics": {}, "published": "2026-09-04T16:18:01.617", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0628cc9b2fa29985a7b8c774741f8a736b0f5e7c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/25b05e3ce31d954540e99954bcc66cbceb27ab35"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/33af47e847fe4a28b109673affb5874015d54f5a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/39a3afb91be3cb465f46ce7a8e5696d9e33edf93"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8e68c380290b1dd64a0a512ce66d0264130c46ed"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b55e83a4ba31d40deae22d4e4dc8c84083e953c6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d57702d4c55633c243da5a2fec37ae2ad4adb621"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a4d5504d5c39cc84f1f828e19967595597a8136e,8e68c380290b1dd64a0a512ce66d0264130c46ed)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a4d5504d5c39cc84f1f828e19967595597a8136e,0628cc9b2fa29985a7b8c774741f8a736b0f5e7c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a4d5504d5c39cc84f1f828e19967595597a8136e,d57702d4c55633c243da5a2fec37ae2ad4adb621)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a4d5504d5c39cc84f1f828e19967595597a8136e,39a3afb91be3cb465f46ce7a8e5696d9e33edf93)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a4d5504d5c39cc84f1f828e19967595597a8136e,b55e83a4ba31d40deae22d4e4dc8c84083e953c6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a4d5504d5c39cc84f1f828e19967595597a8136e,25b05e3ce31d954540e99954bcc66cbceb27ab35)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a4d5504d5c39cc84f1f828e19967595597a8136e,33af47e847fe4a28b109673affb5874015d54f5a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "0de8cd646b0152c9ddd10257d8284938d0df0181"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.18.3,3.19)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "3.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,3.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.185,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.154,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.106,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1.11,7.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.1,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-04T17:30:17.957432+00:00", "updated": "2026-09-05T00:15:13.769365+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}