{"api_version":"1","generated_at":"2026-09-13T05:43:59+00:00","cve":"CVE-2026-80764","urls":{"html":"https://cve.report/CVE-2026-80764","api":"https://cve.report/api/cve/CVE-2026-80764.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-80764","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80764"},"summary":{"title":"Bluetooth: hci_event: fix LE list UAF on reset","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-04 16:18:01","updated_at":"2026-09-04 16:18:01"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/39a3afb91be3cb465f46ce7a8e5696d9e33edf93","name":"https://git.kernel.org/stable/c/39a3afb91be3cb465f46ce7a8e5696d9e33edf93","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8e68c380290b1dd64a0a512ce66d0264130c46ed","name":"https://git.kernel.org/stable/c/8e68c380290b1dd64a0a512ce66d0264130c46ed","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d57702d4c55633c243da5a2fec37ae2ad4adb621","name":"https://git.kernel.org/stable/c/d57702d4c55633c243da5a2fec37ae2ad4adb621","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/25b05e3ce31d954540e99954bcc66cbceb27ab35","name":"https://git.kernel.org/stable/c/25b05e3ce31d954540e99954bcc66cbceb27ab35","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0628cc9b2fa29985a7b8c774741f8a736b0f5e7c","name":"https://git.kernel.org/stable/c/0628cc9b2fa29985a7b8c774741f8a736b0f5e7c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/33af47e847fe4a28b109673affb5874015d54f5a","name":"https://git.kernel.org/stable/c/33af47e847fe4a28b109673affb5874015d54f5a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b55e83a4ba31d40deae22d4e4dc8c84083e953c6","name":"https://git.kernel.org/stable/c/b55e83a4ba31d40deae22d4e4dc8c84083e953c6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80764","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80764","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a4d5504d5c39cc84f1f828e19967595597a8136e 8e68c380290b1dd64a0a512ce66d0264130c46ed git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a4d5504d5c39cc84f1f828e19967595597a8136e 0628cc9b2fa29985a7b8c774741f8a736b0f5e7c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a4d5504d5c39cc84f1f828e19967595597a8136e d57702d4c55633c243da5a2fec37ae2ad4adb621 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a4d5504d5c39cc84f1f828e19967595597a8136e 39a3afb91be3cb465f46ce7a8e5696d9e33edf93 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a4d5504d5c39cc84f1f828e19967595597a8136e b55e83a4ba31d40deae22d4e4dc8c84083e953c6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a4d5504d5c39cc84f1f828e19967595597a8136e 25b05e3ce31d954540e99954bcc66cbceb27ab35 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a4d5504d5c39cc84f1f828e19967595597a8136e 33af47e847fe4a28b109673affb5874015d54f5a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0de8cd646b0152c9ddd10257d8284938d0df0181 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.18.3 3.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.185 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.154 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.106 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.47 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.11 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.1 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"80764","cve":"CVE-2026-80764","epss":"0.001730000","percentile":"0.068300000","score_date":"2026-09-07","updated_at":"2026-09-08 00:05:27"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"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-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.185","versionStartIncluding":"3.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.154","versionStartIncluding":"3.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.106","versionStartIncluding":"3.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.47","versionStartIncluding":"3.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.11","versionStartIncluding":"3.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.1","versionStartIncluding":"3.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"3.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.18.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-09-04T15:12:36.599Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-80764","datePublished":"2026-09-04T15:12:36.599Z","dateReserved":"2026-08-26T14:34:25.791Z","dateUpdated":"2026-09-04T15:12:36.599Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-04 16:18:01","lastModifiedDate":"2026-09-04 16:18:01","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"80764","Ordinal":"1","Title":"Bluetooth: hci_event: fix LE list UAF on reset","CVE":"CVE-2026-80764","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"80764","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"Bluetooth: hci_event: fix LE list UAF on reset"}]}}}