{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a4d5504d5c39cc84f1f828e19967595597a8136e"
            },
            {
              "fixed": "8e68c380290b1dd64a0a512ce66d0264130c46ed"
            },
            {
              "fixed": "0628cc9b2fa29985a7b8c774741f8a736b0f5e7c"
            },
            {
              "fixed": "d57702d4c55633c243da5a2fec37ae2ad4adb621"
            },
            {
              "fixed": "39a3afb91be3cb465f46ce7a8e5696d9e33edf93"
            },
            {
              "fixed": "b55e83a4ba31d40deae22d4e4dc8c84083e953c6"
            },
            {
              "fixed": "25b05e3ce31d954540e99954bcc66cbceb27ab35"
            },
            {
              "fixed": "33af47e847fe4a28b109673affb5874015d54f5a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0de8cd646b0152c9ddd10257d8284938d0df0181"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "3.18.3"
            },
            {
              "fixed": "3.19"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.19.0"
            },
            {
              "fixed": "6.1.185"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.154"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.106"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.47"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.11"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "7.2.0"
            },
            {
              "fixed": "7.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80764.json"
  },
  "details": "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-\u003elock. 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-\u003elock\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-\u003elock around both list clears. This matches the existing\nmutation and traversal locking convention.",
  "id": "CVE-2026-80764",
  "modified": "2026-09-06T03:30:26.214062102Z",
  "published": "2026-09-04T15:12:36.599Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0628cc9b2fa29985a7b8c774741f8a736b0f5e7c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25b05e3ce31d954540e99954bcc66cbceb27ab35"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/33af47e847fe4a28b109673affb5874015d54f5a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39a3afb91be3cb465f46ce7a8e5696d9e33edf93"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8e68c380290b1dd64a0a512ce66d0264130c46ed"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b55e83a4ba31d40deae22d4e4dc8c84083e953c6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d57702d4c55633c243da5a2fec37ae2ad4adb621"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80764.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80764"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "Bluetooth: hci_event: fix LE list UAF on reset"
}