CVE-2026-80666 (GCVE-0-2026-80666)

Vulnerability from cvelistv5 – Published: 2026-08-28 06:49 – Updated: 2026-08-28 06:49
VLAI
Title
Bluetooth: sco: Fix a race condition in sco_sock_timeout()
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: sco: Fix a race condition in sco_sock_timeout() sco_sock_timeout() runs asynchronously and lock_sock(sk). If the socket is closing while the timer is running, it holds the same lock (lock_sock(sk)) twice, leading to a deadlock. CPU 0 CPU 1 ==================== ====================== sco_sock_close() sco_sock_timeout() lock_sock(sk) // <-- LOCK __sco_sock_close() sco_chan_del() sco_conn_put() sco_conn_free() disable_delayed_work_sync() lock(sk) // <-- SAME LOCK Fix this by moving disable_delayed_work_sync() outside of lock_sock(sk), ensuring that no lock_sock(sk) is held before sco_sock_timeout(). Lockdep splat: WARNING: possible circular locking dependency detected 6.13.0-rc4 #7 Not tainted syz-executor292/9514 is trying to acquire lock: ffff8881115d5070 ((work_completion)(&(&conn->timeout_work)->work)){+.+.}-{0:0}, at: rcu_lock_acquire sect/v6.13-rc4/./include/linux/rcupdate.h:337 [inline] ffff8881115d5070 ((work_completion)(&(&conn->timeout_work)->work)){+.+.}-{0:0}, at: rcu_read_lock sect/v6.13-rc4/./include/linux/rcupdate.h:849 [inline] ffff8881115d5070 ((work_completion)(&(&conn->timeout_work)->work)){+.+.}-{0:0}, at: start_flush_work sect/v6.13-rc4/kernel/workqueue.c:4137 [inline] ffff8881115d5070 ((work_completion)(&(&conn->timeout_work)->work)){+.+.}-{0:0}, at: __flush_work+0xd1/0xc40 sect/v6.13-rc4/kernel/workqueue.c:4195 but task is already holding lock: ffff88807db3a258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: lock_sock sect/v6.13-rc4/./include/net/sock.h:1623 [inline] ffff88807db3a258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: sco_sock_close+0x25/0x100 sect/v6.13-rc4/net/bluetooth/sco.c:524 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}: lock_acquire+0x1c4/0x520 sect/v6.13-rc4/kernel/locking/lockdep.c:5849 lock_sock_nested+0x48/0x130 sect/v6.13-rc4/net/core/sock.c:3622 lock_sock sect/v6.13-rc4/./include/net/sock.h:1623 [inline] sco_sock_timeout+0xbe/0x270 sect/v6.13-rc4/net/bluetooth/sco.c:158 process_one_work sect/v6.13-rc4/kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa99/0x18f0 sect/v6.13-rc4/kernel/workqueue.c:3310 worker_thread+0x8a9/0xd80 sect/v6.13-rc4/kernel/workqueue.c:3391 kthread+0x2c6/0x360 sect/v6.13-rc4/kernel/kthread.c:389 ret_from_fork+0x4e/0x80 sect/v6.13-rc4/arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 sect/v6.13-rc4/arch/x86/entry/entry_64.S:244 -> #0 ((work_completion)(&(&conn->timeout_work)->work)){+.+.}-{0:0}: check_prev_add sect/v6.13-rc4/kernel/locking/lockdep.c:3161 [inline] check_prevs_add sect/v6.13-rc4/kernel/locking/lockdep.c:3280 [inline] validate_chain+0x1888/0x5760 sect/v6.13-rc4/kernel/locking/lockdep.c:3904 __lock_acquire+0x13b4/0x2120 sect/v6.13-rc4/kernel/locking/lockdep.c:5226 lock_acquire+0x1c4/0x520 sect/v6.13-rc4/kernel/locking/lockdep.c:5849 touch_work_lockdep_map sect/v6.13-rc4/kernel/workqueue.c:3909 [inline] start_flush_work sect/v6.13-rc4/kernel/workqueue.c:4163 [inline] __flush_work+0x70f/0xc40 sect/v6.13-rc4/kernel/workqueue.c:4195 __cancel_work_sync sect/v6.13-rc4/kernel/workqueue.c:4351 [inline] disable_delayed_work_sync+0xbb/0xf0 sect/v6.13-rc4/kernel/workqueue.c:4514 sco_conn_free sect/v6.13-rc4/net/bluetooth/sco.c:95 [inline] kref_put sect/v6.13-rc4/./include/linux/kref.h:65 [inline] sco_conn_put+0x18f/0x270 sect/v6.13-rc4/net/bluetooth/sco.c:107 sco_chan_del+0xe2/0x210 sect/v6.13-rc4/net/bluetooth/sco.c:236 sco_sock_close+0x8f/0x100 sect/v6.13-rc4/net/bluetooth/sco.c:526 sco_sock_release+0x62/0x2d0 sect/v6.13-rc4/net/blueto ---truncated---
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e6720779ae612a14ac4ba7fe4fd5b27d900d932c , < da4d8eea0c5f33ea35c0e1d9e5f3e439f3b987ce (git)
Affected: e6720779ae612a14ac4ba7fe4fd5b27d900d932c , < a50da115b5888062d32c86a548a29b4e2559d7ec (git)
Affected: e6720779ae612a14ac4ba7fe4fd5b27d900d932c , < 0f8a5dcc66648b6e1458a9f3ba4c5a0463a228fc (git)
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Linux Linux Affected: 6.13
Unaffected: 0 , < 6.13 (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/sco.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "da4d8eea0c5f33ea35c0e1d9e5f3e439f3b987ce",
              "status": "affected",
              "version": "e6720779ae612a14ac4ba7fe4fd5b27d900d932c",
              "versionType": "git"
            },
            {
              "lessThan": "a50da115b5888062d32c86a548a29b4e2559d7ec",
              "status": "affected",
              "version": "e6720779ae612a14ac4ba7fe4fd5b27d900d932c",
              "versionType": "git"
            },
            {
              "lessThan": "0f8a5dcc66648b6e1458a9f3ba4c5a0463a228fc",
              "status": "affected",
              "version": "e6720779ae612a14ac4ba7fe4fd5b27d900d932c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/sco.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": "6.18.*",
              "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",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: sco: Fix a race condition in sco_sock_timeout()\n\nsco_sock_timeout() runs asynchronously and lock_sock(sk). If the socket\nis closing while the timer is running, it holds the same lock\n(lock_sock(sk)) twice, leading to a deadlock.\n\nCPU 0                      CPU 1\n====================       ======================\nsco_sock_close()\n                           sco_sock_timeout()\nlock_sock(sk) // \u003c-- LOCK\n  __sco_sock_close()\n    sco_chan_del()\n      sco_conn_put()\n\t      sco_conn_free()\n\t        disable_delayed_work_sync()\n\t                           lock(sk) // \u003c-- SAME LOCK\n\nFix this by moving disable_delayed_work_sync() outside of lock_sock(sk),\nensuring that no lock_sock(sk) is held before sco_sock_timeout().\n\nLockdep splat:\n\nWARNING: possible circular locking dependency detected\n6.13.0-rc4 #7 Not tainted\n\nsyz-executor292/9514 is trying to acquire lock:\nffff8881115d5070 ((work_completion)(\u0026(\u0026conn-\u003etimeout_work)-\u003ework)){+.+.}-{0:0}, at: rcu_lock_acquire sect/v6.13-rc4/./include/linux/rcupdate.h:337 [inline]\nffff8881115d5070 ((work_completion)(\u0026(\u0026conn-\u003etimeout_work)-\u003ework)){+.+.}-{0:0}, at: rcu_read_lock sect/v6.13-rc4/./include/linux/rcupdate.h:849 [inline]\nffff8881115d5070 ((work_completion)(\u0026(\u0026conn-\u003etimeout_work)-\u003ework)){+.+.}-{0:0}, at: start_flush_work sect/v6.13-rc4/kernel/workqueue.c:4137 [inline]\nffff8881115d5070 ((work_completion)(\u0026(\u0026conn-\u003etimeout_work)-\u003ework)){+.+.}-{0:0}, at: __flush_work+0xd1/0xc40 sect/v6.13-rc4/kernel/workqueue.c:4195\n\nbut task is already holding lock:\nffff88807db3a258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: lock_sock sect/v6.13-rc4/./include/net/sock.h:1623 [inline]\nffff88807db3a258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: sco_sock_close+0x25/0x100 sect/v6.13-rc4/net/bluetooth/sco.c:524\n\nwhich lock already depends on the new lock.\n\nthe existing dependency chain (in reverse order) is:\n\n-\u003e #1 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}:\n       lock_acquire+0x1c4/0x520 sect/v6.13-rc4/kernel/locking/lockdep.c:5849\n       lock_sock_nested+0x48/0x130 sect/v6.13-rc4/net/core/sock.c:3622\n       lock_sock sect/v6.13-rc4/./include/net/sock.h:1623 [inline]\n       sco_sock_timeout+0xbe/0x270 sect/v6.13-rc4/net/bluetooth/sco.c:158\n       process_one_work sect/v6.13-rc4/kernel/workqueue.c:3229 [inline]\n       process_scheduled_works+0xa99/0x18f0 sect/v6.13-rc4/kernel/workqueue.c:3310\n       worker_thread+0x8a9/0xd80 sect/v6.13-rc4/kernel/workqueue.c:3391\n       kthread+0x2c6/0x360 sect/v6.13-rc4/kernel/kthread.c:389\n       ret_from_fork+0x4e/0x80 sect/v6.13-rc4/arch/x86/kernel/process.c:147\n       ret_from_fork_asm+0x1a/0x30 sect/v6.13-rc4/arch/x86/entry/entry_64.S:244\n\n-\u003e #0 ((work_completion)(\u0026(\u0026conn-\u003etimeout_work)-\u003ework)){+.+.}-{0:0}:\n       check_prev_add sect/v6.13-rc4/kernel/locking/lockdep.c:3161 [inline]\n       check_prevs_add sect/v6.13-rc4/kernel/locking/lockdep.c:3280 [inline]\n       validate_chain+0x1888/0x5760 sect/v6.13-rc4/kernel/locking/lockdep.c:3904\n       __lock_acquire+0x13b4/0x2120 sect/v6.13-rc4/kernel/locking/lockdep.c:5226\n       lock_acquire+0x1c4/0x520 sect/v6.13-rc4/kernel/locking/lockdep.c:5849\n       touch_work_lockdep_map sect/v6.13-rc4/kernel/workqueue.c:3909 [inline]\n       start_flush_work sect/v6.13-rc4/kernel/workqueue.c:4163 [inline]\n       __flush_work+0x70f/0xc40 sect/v6.13-rc4/kernel/workqueue.c:4195\n       __cancel_work_sync sect/v6.13-rc4/kernel/workqueue.c:4351 [inline]\n       disable_delayed_work_sync+0xbb/0xf0 sect/v6.13-rc4/kernel/workqueue.c:4514\n       sco_conn_free sect/v6.13-rc4/net/bluetooth/sco.c:95 [inline]\n       kref_put sect/v6.13-rc4/./include/linux/kref.h:65 [inline]\n       sco_conn_put+0x18f/0x270 sect/v6.13-rc4/net/bluetooth/sco.c:107\n       sco_chan_del+0xe2/0x210 sect/v6.13-rc4/net/bluetooth/sco.c:236\n       sco_sock_close+0x8f/0x100 sect/v6.13-rc4/net/bluetooth/sco.c:526\n       sco_sock_release+0x62/0x2d0 sect/v6.13-rc4/net/blueto\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T06:49:08.684Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/da4d8eea0c5f33ea35c0e1d9e5f3e439f3b987ce"
        },
        {
          "url": "https://git.kernel.org/stable/c/a50da115b5888062d32c86a548a29b4e2559d7ec"
        },
        {
          "url": "https://git.kernel.org/stable/c/0f8a5dcc66648b6e1458a9f3ba4c5a0463a228fc"
        }
      ],
      "title": "Bluetooth: sco: Fix a race condition in sco_sock_timeout()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80666",
    "datePublished": "2026-08-28T06:49:08.684Z",
    "dateReserved": "2026-08-26T14:34:25.781Z",
    "dateUpdated": "2026-08-28T06:49:08.684Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-80666",
      "date": "2026-09-01",
      "epss": "0.00166",
      "percentile": "0.06091"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-80666\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-08-28T08:16:51.847\",\"lastModified\":\"2026-08-28T08:16:51.847\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: sco: Fix a race condition in sco_sock_timeout()\\n\\nsco_sock_timeout() runs asynchronously and lock_sock(sk). If the socket\\nis closing while the timer is running, it holds the same lock\\n(lock_sock(sk)) twice, leading to a deadlock.\\n\\nCPU 0                      CPU 1\\n====================       ======================\\nsco_sock_close()\\n                           sco_sock_timeout()\\nlock_sock(sk) // \u003c-- LOCK\\n  __sco_sock_close()\\n    sco_chan_del()\\n      sco_conn_put()\\n\\t      sco_conn_free()\\n\\t        disable_delayed_work_sync()\\n\\t                           lock(sk) // \u003c-- SAME LOCK\\n\\nFix this by moving disable_delayed_work_sync() outside of lock_sock(sk),\\nensuring that no lock_sock(sk) is held before sco_sock_timeout().\\n\\nLockdep splat:\\n\\nWARNING: possible circular locking dependency detected\\n6.13.0-rc4 #7 Not tainted\\n\\nsyz-executor292/9514 is trying to acquire lock:\\nffff8881115d5070 ((work_completion)(\u0026(\u0026conn-\u003etimeout_work)-\u003ework)){+.+.}-{0:0}, at: rcu_lock_acquire sect/v6.13-rc4/./include/linux/rcupdate.h:337 [inline]\\nffff8881115d5070 ((work_completion)(\u0026(\u0026conn-\u003etimeout_work)-\u003ework)){+.+.}-{0:0}, at: rcu_read_lock sect/v6.13-rc4/./include/linux/rcupdate.h:849 [inline]\\nffff8881115d5070 ((work_completion)(\u0026(\u0026conn-\u003etimeout_work)-\u003ework)){+.+.}-{0:0}, at: start_flush_work sect/v6.13-rc4/kernel/workqueue.c:4137 [inline]\\nffff8881115d5070 ((work_completion)(\u0026(\u0026conn-\u003etimeout_work)-\u003ework)){+.+.}-{0:0}, at: __flush_work+0xd1/0xc40 sect/v6.13-rc4/kernel/workqueue.c:4195\\n\\nbut task is already holding lock:\\nffff88807db3a258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: lock_sock sect/v6.13-rc4/./include/net/sock.h:1623 [inline]\\nffff88807db3a258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: sco_sock_close+0x25/0x100 sect/v6.13-rc4/net/bluetooth/sco.c:524\\n\\nwhich lock already depends on the new lock.\\n\\nthe existing dependency chain (in reverse order) is:\\n\\n-\u003e #1 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}:\\n       lock_acquire+0x1c4/0x520 sect/v6.13-rc4/kernel/locking/lockdep.c:5849\\n       lock_sock_nested+0x48/0x130 sect/v6.13-rc4/net/core/sock.c:3622\\n       lock_sock sect/v6.13-rc4/./include/net/sock.h:1623 [inline]\\n       sco_sock_timeout+0xbe/0x270 sect/v6.13-rc4/net/bluetooth/sco.c:158\\n       process_one_work sect/v6.13-rc4/kernel/workqueue.c:3229 [inline]\\n       process_scheduled_works+0xa99/0x18f0 sect/v6.13-rc4/kernel/workqueue.c:3310\\n       worker_thread+0x8a9/0xd80 sect/v6.13-rc4/kernel/workqueue.c:3391\\n       kthread+0x2c6/0x360 sect/v6.13-rc4/kernel/kthread.c:389\\n       ret_from_fork+0x4e/0x80 sect/v6.13-rc4/arch/x86/kernel/process.c:147\\n       ret_from_fork_asm+0x1a/0x30 sect/v6.13-rc4/arch/x86/entry/entry_64.S:244\\n\\n-\u003e #0 ((work_completion)(\u0026(\u0026conn-\u003etimeout_work)-\u003ework)){+.+.}-{0:0}:\\n       check_prev_add sect/v6.13-rc4/kernel/locking/lockdep.c:3161 [inline]\\n       check_prevs_add sect/v6.13-rc4/kernel/locking/lockdep.c:3280 [inline]\\n       validate_chain+0x1888/0x5760 sect/v6.13-rc4/kernel/locking/lockdep.c:3904\\n       __lock_acquire+0x13b4/0x2120 sect/v6.13-rc4/kernel/locking/lockdep.c:5226\\n       lock_acquire+0x1c4/0x520 sect/v6.13-rc4/kernel/locking/lockdep.c:5849\\n       touch_work_lockdep_map sect/v6.13-rc4/kernel/workqueue.c:3909 [inline]\\n       start_flush_work sect/v6.13-rc4/kernel/workqueue.c:4163 [inline]\\n       __flush_work+0x70f/0xc40 sect/v6.13-rc4/kernel/workqueue.c:4195\\n       __cancel_work_sync sect/v6.13-rc4/kernel/workqueue.c:4351 [inline]\\n       disable_delayed_work_sync+0xbb/0xf0 sect/v6.13-rc4/kernel/workqueue.c:4514\\n       sco_conn_free sect/v6.13-rc4/net/bluetooth/sco.c:95 [inline]\\n       kref_put sect/v6.13-rc4/./include/linux/kref.h:65 [inline]\\n       sco_conn_put+0x18f/0x270 sect/v6.13-rc4/net/bluetooth/sco.c:107\\n       sco_chan_del+0xe2/0x210 sect/v6.13-rc4/net/bluetooth/sco.c:236\\n       sco_sock_close+0x8f/0x100 sect/v6.13-rc4/net/bluetooth/sco.c:526\\n       sco_sock_release+0x62/0x2d0 sect/v6.13-rc4/net/blueto\\n---truncated---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/bluetooth/sco.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"e6720779ae612a14ac4ba7fe4fd5b27d900d932c\",\"lessThan\":\"da4d8eea0c5f33ea35c0e1d9e5f3e439f3b987ce\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e6720779ae612a14ac4ba7fe4fd5b27d900d932c\",\"lessThan\":\"a50da115b5888062d32c86a548a29b4e2559d7ec\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e6720779ae612a14ac4ba7fe4fd5b27d900d932c\",\"lessThan\":\"0f8a5dcc66648b6e1458a9f3ba4c5a0463a228fc\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/bluetooth/sco.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.13\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.13\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.40\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.5\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0f8a5dcc66648b6e1458a9f3ba4c5a0463a228fc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a50da115b5888062d32c86a548a29b4e2559d7ec\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/da4d8eea0c5f33ea35c0e1d9e5f3e439f3b987ce\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-09-01T10:43:13+00:00",
      "cve": "CVE-2026-80666",
      "id": "CVE-2026-80666",
      "initial_release_date": "2026-08-28T00:00:00+00:00",
      "product_status:known_affected": "198",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Bluetooth: sco: Fix a race condition in sco_sock_timeout()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80666.json",
      "version": "3"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.