CVE-2026-23462 (GCVE-0-2026-23462)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-10-19 18:35
Severity ?
8.8 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: Fix possible UAF This fixes the following trace caused by not dropping l2cap_conn reference when user->remove callback is called: [ 97.809249] l2cap_conn_free: freeing conn ffff88810a171c00 [ 97.809907] CPU: 1 UID: 0 PID: 1419 Comm: repro_standalon Not tainted 7.0.0-rc1-dirty #14 PREEMPT(lazy) [ 97.809935] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-debian-1.17.0-1 04/01/2014 [ 97.809947] Call Trace: [ 97.809954] <TASK> [ 97.809961] dump_stack_lvl (lib/dump_stack.c:122) [ 97.809990] l2cap_conn_free (net/bluetooth/l2cap_core.c:1808) [ 97.810017] l2cap_conn_del (./include/linux/kref.h:66 net/bluetooth/l2cap_core.c:1821 net/bluetooth/l2cap_core.c:1798) [ 97.810055] l2cap_disconn_cfm (net/bluetooth/l2cap_core.c:7347 (discriminator 1) net/bluetooth/l2cap_core.c:7340 (discriminator 1)) [ 97.810086] ? __pfx_l2cap_disconn_cfm (net/bluetooth/l2cap_core.c:7341) [ 97.810117] hci_conn_hash_flush (./include/net/bluetooth/hci_core.h:2152 (discriminator 2) net/bluetooth/hci_conn.c:2644 (discriminator 2)) [ 97.810148] hci_dev_close_sync (net/bluetooth/hci_sync.c:5360) [ 97.810180] ? __pfx_hci_dev_close_sync (net/bluetooth/hci_sync.c:5285) [ 97.810212] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221) [ 97.810242] ? up_write (./arch/x86/include/asm/atomic64_64.h:87 (discriminator 5) ./include/linux/atomic/atomic-arch-fallback.h:2852 (discriminator 5) ./include/linux/atomic/atomic-long.h:268 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:3391 (discriminator 5) kernel/locking/rwsem.c:1385 (discriminator 5) kernel/locking/rwsem.c:1643 (discriminator 5)) [ 97.810267] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221) [ 97.810290] ? rcu_is_watching (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/context_tracking.h:128 kernel/rcu/tree.c:752) [ 97.810320] hci_unregister_dev (net/bluetooth/hci_core.c:504 net/bluetooth/hci_core.c:2716) [ 97.810346] vhci_release (drivers/bluetooth/hci_vhci.c:691) [ 97.810375] ? __pfx_vhci_release (drivers/bluetooth/hci_vhci.c:678) [ 97.810404] __fput (fs/file_table.c:470) [ 97.810430] task_work_run (kernel/task_work.c:235) [ 97.810451] ? __pfx_task_work_run (kernel/task_work.c:201) [ 97.810472] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221) [ 97.810495] ? do_raw_spin_unlock (./include/asm-generic/qspinlock.h:128 (discriminator 5) kernel/locking/spinlock_debug.c:142 (discriminator 5)) [ 97.810527] do_exit (kernel/exit.c:972) [ 97.810547] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221) [ 97.810574] ? __pfx_do_exit (kernel/exit.c:897) [ 97.810594] ? lock_acquire (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:5870 (discriminator 6) kernel/locking/lockdep.c:5825 (discriminator 6)) [ 97.810616] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221) [ 97.810639] ? do_raw_spin_lock (kernel/locking/spinlock_debug.c:95 (discriminator 4) kernel/locking/spinlock_debug.c:118 (discriminator 4)) [ 97.810664] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221) [ 97.810688] ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1)) [ 97.810721] do_group_exit (kernel/exit.c:1093) [ 97.810745] get_signal (kernel/signal.c:3007 (discriminator 1)) [ 97.810772] ? security_file_permission (./arch/x86/include/asm/jump_label.h:37 security/security.c:2366) [ 97.810803] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221) [ 97.810826] ? vfs_read (fs/read_write.c:555) [ 97.810854] ? __pfx_get_signal (kernel/signal.c:2800) [ 97.810880] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221) [ 97.810905] ? __pfx_vfs_read (fs/read_write.c:555) [ 97.810932] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221) [ 97.810960] arch_do_signal_or_restart (arch/ ---truncated---
References
Impacted products
Vendor Product Version
Linux Linux Version: b4f34d8d9d26b2428fa7cf7c8f97690a297978e6
Version: b4f34d8d9d26b2428fa7cf7c8f97690a297978e6
Version: b4f34d8d9d26b2428fa7cf7c8f97690a297978e6
Version: b4f34d8d9d26b2428fa7cf7c8f97690a297978e6
Version: b4f34d8d9d26b2428fa7cf7c8f97690a297978e6
Version: b4f34d8d9d26b2428fa7cf7c8f97690a297978e6
Version: b4f34d8d9d26b2428fa7cf7c8f97690a297978e6
Version: b4f34d8d9d26b2428fa7cf7c8f97690a297978e6
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                "id": "CVE-2026-23462",
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: HIDP: Fix possible UAF\n\nThis fixes the following trace caused by not dropping l2cap_conn\nreference when user-\u003eremove callback is called:\n\n[   97.809249] l2cap_conn_free: freeing conn ffff88810a171c00\n[   97.809907] CPU: 1 UID: 0 PID: 1419 Comm: repro_standalon Not tainted 7.0.0-rc1-dirty #14 PREEMPT(lazy)\n[   97.809935] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-debian-1.17.0-1 04/01/2014\n[   97.809947] Call Trace:\n[   97.809954]  \u003cTASK\u003e\n[   97.809961]  dump_stack_lvl (lib/dump_stack.c:122)\n[   97.809990]  l2cap_conn_free (net/bluetooth/l2cap_core.c:1808)\n[   97.810017]  l2cap_conn_del (./include/linux/kref.h:66 net/bluetooth/l2cap_core.c:1821 net/bluetooth/l2cap_core.c:1798)\n[   97.810055]  l2cap_disconn_cfm (net/bluetooth/l2cap_core.c:7347 (discriminator 1) net/bluetooth/l2cap_core.c:7340 (discriminator 1))\n[   97.810086]  ? __pfx_l2cap_disconn_cfm (net/bluetooth/l2cap_core.c:7341)\n[   97.810117]  hci_conn_hash_flush (./include/net/bluetooth/hci_core.h:2152 (discriminator 2) net/bluetooth/hci_conn.c:2644 (discriminator 2))\n[   97.810148]  hci_dev_close_sync (net/bluetooth/hci_sync.c:5360)\n[   97.810180]  ? __pfx_hci_dev_close_sync (net/bluetooth/hci_sync.c:5285)\n[   97.810212]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[   97.810242]  ? up_write (./arch/x86/include/asm/atomic64_64.h:87 (discriminator 5) ./include/linux/atomic/atomic-arch-fallback.h:2852 (discriminator 5) ./include/linux/atomic/atomic-long.h:268 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:3391 (discriminator 5) kernel/locking/rwsem.c:1385 (discriminator 5) kernel/locking/rwsem.c:1643 (discriminator 5))\n[   97.810267]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[   97.810290]  ? rcu_is_watching (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/context_tracking.h:128 kernel/rcu/tree.c:752)\n[   97.810320]  hci_unregister_dev (net/bluetooth/hci_core.c:504 net/bluetooth/hci_core.c:2716)\n[   97.810346]  vhci_release (drivers/bluetooth/hci_vhci.c:691)\n[   97.810375]  ? __pfx_vhci_release (drivers/bluetooth/hci_vhci.c:678)\n[   97.810404]  __fput (fs/file_table.c:470)\n[   97.810430]  task_work_run (kernel/task_work.c:235)\n[   97.810451]  ? __pfx_task_work_run (kernel/task_work.c:201)\n[   97.810472]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[   97.810495]  ? do_raw_spin_unlock (./include/asm-generic/qspinlock.h:128 (discriminator 5) kernel/locking/spinlock_debug.c:142 (discriminator 5))\n[   97.810527]  do_exit (kernel/exit.c:972)\n[   97.810547]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[   97.810574]  ? __pfx_do_exit (kernel/exit.c:897)\n[   97.810594]  ? lock_acquire (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:5870 (discriminator 6) kernel/locking/lockdep.c:5825 (discriminator 6))\n[   97.810616]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[   97.810639]  ? do_raw_spin_lock (kernel/locking/spinlock_debug.c:95 (discriminator 4) kernel/locking/spinlock_debug.c:118 (discriminator 4))\n[   97.810664]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[   97.810688]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))\n[   97.810721]  do_group_exit (kernel/exit.c:1093)\n[   97.810745]  get_signal (kernel/signal.c:3007 (discriminator 1))\n[   97.810772]  ? security_file_permission (./arch/x86/include/asm/jump_label.h:37 security/security.c:2366)\n[   97.810803]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[   97.810826]  ? vfs_read (fs/read_write.c:555)\n[   97.810854]  ? __pfx_get_signal (kernel/signal.c:2800)\n[   97.810880]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[   97.810905]  ? __pfx_vfs_read (fs/read_write.c:555)\n[   97.810932]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[   97.810960]  arch_do_signal_or_restart (arch/\n---truncated---"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - The vulnerable teardown is reachable through Bluetooth HIDP over L2CAP/HCI, so an attacker must be within Bluetooth radio range rather than on an IP network.\nAC:L - After a HIDP session exists, tearing down the Bluetooth connection drives the UAF path through L2CAP removal and the HIDP kthread cleanup without requiring conditions outside attacker influence.\nPR:N - Although local HIDPCONNADD setup is gated by CAP_NET_ADMIN, a malicious adjacent Bluetooth HID peer can trigger the disconnect/removal path after a legitimate session exists without target-system privileges.\nUI:N - In the highest reasonable scenario, an already paired/connected or auto-reconnected malicious HID device can trigger the teardown without additional victim action.\nS:U - The impact remains within the Linux kernel security authority and does not cross a virtualization, IOMMU, or separate security-scope boundary.\nC:H - This is a kernel use-after-free of an L2CAP connection object, and per kernel CVSS guidance UAFs are treated as capable of enabling high-impact information disclosure.\nI:H - The stale pointer is used in mutex/list cleanup paths on freed kernel memory, making this memory corruption potentially usable for control-flow or kernel data modification.\nA:H - The reported trace shows a KASAN use-after-free and kernel crash-class behavior during HIDP/L2CAP teardown, so availability impact is high."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:22:00.540Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d955ccbf91ab74d76fe9e4eab2846a7d8a173075"
        },
        {
          "url": "https://git.kernel.org/stable/c/18b1263ece6431bd78fa6b61faaef5281203741c"
        },
        {
          "url": "https://git.kernel.org/stable/c/21a47a119f33df9bb157326846390d7e8e1b45ba"
        },
        {
          "url": "https://git.kernel.org/stable/c/45ebe5b900200ac3e01f3470506a44a447825721"
        },
        {
          "url": "https://git.kernel.org/stable/c/7c805b7d1e580eececcc92470292e3dbc42bc3f5"
        },
        {
          "url": "https://git.kernel.org/stable/c/f8b6ed2f06d3baa44f347a0fa2af52433f386463"
        },
        {
          "url": "https://git.kernel.org/stable/c/4d37fa7582aa960ba23e10a7a2596a29f37ad281"
        },
        {
          "url": "https://git.kernel.org/stable/c/dbf666e4fc9bdd975a61bf682b3f75cb0145eedd"
        }
      ],
      "title": "Bluetooth: HIDP: Fix possible UAF",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23462",
    "datePublished": "2026-04-03T15:15:41.718Z",
    "dateReserved": "2026-01-13T15:37:46.021Z",
    "dateUpdated": "2026-10-19T18:35:45.529Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-23462\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-16T15:08:35.341529Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-16T15:08:35.934Z\"}}], \"cna\": {\"title\": \"Bluetooth: HIDP: Fix possible UAF\", \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 8.8, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"AV:A - The vulnerable teardown is reachable through Bluetooth HIDP over L2CAP/HCI, so an attacker must be within Bluetooth radio range rather than on an IP network.\\nAC:L - After a HIDP session exists, tearing down the Bluetooth connection drives the UAF path through L2CAP removal and the HIDP kthread cleanup without requiring conditions outside attacker influence.\\nPR:N - Although local HIDPCONNADD setup is gated by CAP_NET_ADMIN, a malicious adjacent Bluetooth HID peer can trigger the disconnect/removal path after a legitimate session exists without target-system privileges.\\nUI:N - In the highest reasonable scenario, an already paired/connected or auto-reconnected malicious HID device can trigger the teardown without additional victim action.\\nS:U - The impact remains within the Linux kernel security authority and does not cross a virtualization, IOMMU, or separate security-scope boundary.\\nC:H - This is a kernel use-after-free of an L2CAP connection object, and per kernel CVSS guidance UAFs are treated as capable of enabling high-impact information disclosure.\\nI:H - The stale pointer is used in mutex/list cleanup paths on freed kernel memory, making this memory corruption potentially usable for control-flow or kernel data modification.\\nA:H - The reported trace shows a KASAN use-after-free and kernel crash-class behavior during HIDP/L2CAP teardown, so availability impact is high.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\", \"lessThan\": \"d955ccbf91ab74d76fe9e4eab2846a7d8a173075\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\", \"lessThan\": \"18b1263ece6431bd78fa6b61faaef5281203741c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\", \"lessThan\": \"21a47a119f33df9bb157326846390d7e8e1b45ba\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\", \"lessThan\": \"45ebe5b900200ac3e01f3470506a44a447825721\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\", \"lessThan\": \"7c805b7d1e580eececcc92470292e3dbc42bc3f5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\", \"lessThan\": \"f8b6ed2f06d3baa44f347a0fa2af52433f386463\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\", \"lessThan\": \"4d37fa7582aa960ba23e10a7a2596a29f37ad281\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\", \"lessThan\": \"dbf666e4fc9bdd975a61bf682b3f75cb0145eedd\", \"versionType\": \"git\"}], \"programFiles\": [\"net/bluetooth/hidp/core.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.10\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.10\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.253\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.203\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.167\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.130\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.78\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.18.20\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.18.*\"}, {\"status\": \"unaffected\", \"version\": \"6.19.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.19.*\"}, {\"status\": \"unaffected\", \"version\": \"7.0\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/bluetooth/hidp/core.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/d955ccbf91ab74d76fe9e4eab2846a7d8a173075\"}, {\"url\": \"https://git.kernel.org/stable/c/18b1263ece6431bd78fa6b61faaef5281203741c\"}, {\"url\": \"https://git.kernel.org/stable/c/21a47a119f33df9bb157326846390d7e8e1b45ba\"}, {\"url\": \"https://git.kernel.org/stable/c/45ebe5b900200ac3e01f3470506a44a447825721\"}, {\"url\": \"https://git.kernel.org/stable/c/7c805b7d1e580eececcc92470292e3dbc42bc3f5\"}, {\"url\": \"https://git.kernel.org/stable/c/f8b6ed2f06d3baa44f347a0fa2af52433f386463\"}, {\"url\": \"https://git.kernel.org/stable/c/4d37fa7582aa960ba23e10a7a2596a29f37ad281\"}, {\"url\": \"https://git.kernel.org/stable/c/dbf666e4fc9bdd975a61bf682b3f75cb0145eedd\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: HIDP: Fix possible UAF\\n\\nThis fixes the following trace caused by not dropping l2cap_conn\\nreference when user-\u003eremove callback is called:\\n\\n[   97.809249] l2cap_conn_free: freeing conn ffff88810a171c00\\n[   97.809907] CPU: 1 UID: 0 PID: 1419 Comm: repro_standalon Not tainted 7.0.0-rc1-dirty #14 PREEMPT(lazy)\\n[   97.809935] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-debian-1.17.0-1 04/01/2014\\n[   97.809947] Call Trace:\\n[   97.809954]  \u003cTASK\u003e\\n[   97.809961]  dump_stack_lvl (lib/dump_stack.c:122)\\n[   97.809990]  l2cap_conn_free (net/bluetooth/l2cap_core.c:1808)\\n[   97.810017]  l2cap_conn_del (./include/linux/kref.h:66 net/bluetooth/l2cap_core.c:1821 net/bluetooth/l2cap_core.c:1798)\\n[   97.810055]  l2cap_disconn_cfm (net/bluetooth/l2cap_core.c:7347 (discriminator 1) net/bluetooth/l2cap_core.c:7340 (discriminator 1))\\n[   97.810086]  ? __pfx_l2cap_disconn_cfm (net/bluetooth/l2cap_core.c:7341)\\n[   97.810117]  hci_conn_hash_flush (./include/net/bluetooth/hci_core.h:2152 (discriminator 2) net/bluetooth/hci_conn.c:2644 (discriminator 2))\\n[   97.810148]  hci_dev_close_sync (net/bluetooth/hci_sync.c:5360)\\n[   97.810180]  ? __pfx_hci_dev_close_sync (net/bluetooth/hci_sync.c:5285)\\n[   97.810212]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\\n[   97.810242]  ? up_write (./arch/x86/include/asm/atomic64_64.h:87 (discriminator 5) ./include/linux/atomic/atomic-arch-fallback.h:2852 (discriminator 5) ./include/linux/atomic/atomic-long.h:268 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:3391 (discriminator 5) kernel/locking/rwsem.c:1385 (discriminator 5) kernel/locking/rwsem.c:1643 (discriminator 5))\\n[   97.810267]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\\n[   97.810290]  ? rcu_is_watching (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/context_tracking.h:128 kernel/rcu/tree.c:752)\\n[   97.810320]  hci_unregister_dev (net/bluetooth/hci_core.c:504 net/bluetooth/hci_core.c:2716)\\n[   97.810346]  vhci_release (drivers/bluetooth/hci_vhci.c:691)\\n[   97.810375]  ? __pfx_vhci_release (drivers/bluetooth/hci_vhci.c:678)\\n[   97.810404]  __fput (fs/file_table.c:470)\\n[   97.810430]  task_work_run (kernel/task_work.c:235)\\n[   97.810451]  ? __pfx_task_work_run (kernel/task_work.c:201)\\n[   97.810472]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\\n[   97.810495]  ? do_raw_spin_unlock (./include/asm-generic/qspinlock.h:128 (discriminator 5) kernel/locking/spinlock_debug.c:142 (discriminator 5))\\n[   97.810527]  do_exit (kernel/exit.c:972)\\n[   97.810547]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\\n[   97.810574]  ? __pfx_do_exit (kernel/exit.c:897)\\n[   97.810594]  ? lock_acquire (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:5870 (discriminator 6) kernel/locking/lockdep.c:5825 (discriminator 6))\\n[   97.810616]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\\n[   97.810639]  ? do_raw_spin_lock (kernel/locking/spinlock_debug.c:95 (discriminator 4) kernel/locking/spinlock_debug.c:118 (discriminator 4))\\n[   97.810664]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\\n[   97.810688]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))\\n[   97.810721]  do_group_exit (kernel/exit.c:1093)\\n[   97.810745]  get_signal (kernel/signal.c:3007 (discriminator 1))\\n[   97.810772]  ? security_file_permission (./arch/x86/include/asm/jump_label.h:37 security/security.c:2366)\\n[   97.810803]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\\n[   97.810826]  ? vfs_read (fs/read_write.c:555)\\n[   97.810854]  ? __pfx_get_signal (kernel/signal.c:2800)\\n[   97.810880]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\\n[   97.810905]  ? __pfx_vfs_read (fs/read_write.c:555)\\n[   97.810932]  ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\\n[   97.810960]  arch_do_signal_or_restart (arch/\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.253\", \"versionStartIncluding\": \"3.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.203\", \"versionStartIncluding\": \"3.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.167\", \"versionStartIncluding\": \"3.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.130\", \"versionStartIncluding\": \"3.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.78\", \"versionStartIncluding\": \"3.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.18.20\", \"versionStartIncluding\": \"3.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.19.10\", \"versionStartIncluding\": \"3.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"7.0\", \"versionStartIncluding\": \"3.10\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T12:22:00.540Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-23462\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-19T18:35:45.529Z\", \"dateReserved\": \"2026-01-13T15:37:46.021Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2026-04-03T15:15:41.718Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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