CVE-2024-54191 (GCVE-0-2024-54191)

Vulnerability from cvelistv5 – Published: 2025-01-11 12:29 – Updated: 2025-10-01 19:57
VLAI?
Title
Bluetooth: iso: Fix circular lock in iso_conn_big_sync
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: iso: Fix circular lock in iso_conn_big_sync This fixes the circular locking dependency warning below, by reworking iso_sock_recvmsg, to ensure that the socket lock is always released before calling a function that locks hdev. [ 561.670344] ====================================================== [ 561.670346] WARNING: possible circular locking dependency detected [ 561.670349] 6.12.0-rc6+ #26 Not tainted [ 561.670351] ------------------------------------------------------ [ 561.670353] iso-tester/3289 is trying to acquire lock: [ 561.670355] ffff88811f600078 (&hdev->lock){+.+.}-{3:3}, at: iso_conn_big_sync+0x73/0x260 [bluetooth] [ 561.670405] but task is already holding lock: [ 561.670407] ffff88815af58258 (sk_lock-AF_BLUETOOTH){+.+.}-{0:0}, at: iso_sock_recvmsg+0xbf/0x500 [bluetooth] [ 561.670450] which lock already depends on the new lock. [ 561.670452] the existing dependency chain (in reverse order) is: [ 561.670453] -> #2 (sk_lock-AF_BLUETOOTH){+.+.}-{0:0}: [ 561.670458] lock_acquire+0x7c/0xc0 [ 561.670463] lock_sock_nested+0x3b/0xf0 [ 561.670467] bt_accept_dequeue+0x1a5/0x4d0 [bluetooth] [ 561.670510] iso_sock_accept+0x271/0x830 [bluetooth] [ 561.670547] do_accept+0x3dd/0x610 [ 561.670550] __sys_accept4+0xd8/0x170 [ 561.670553] __x64_sys_accept+0x74/0xc0 [ 561.670556] x64_sys_call+0x17d6/0x25f0 [ 561.670559] do_syscall_64+0x87/0x150 [ 561.670563] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 561.670567] -> #1 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO){+.+.}-{0:0}: [ 561.670571] lock_acquire+0x7c/0xc0 [ 561.670574] lock_sock_nested+0x3b/0xf0 [ 561.670577] iso_sock_listen+0x2de/0xf30 [bluetooth] [ 561.670617] __sys_listen_socket+0xef/0x130 [ 561.670620] __x64_sys_listen+0xe1/0x190 [ 561.670623] x64_sys_call+0x2517/0x25f0 [ 561.670626] do_syscall_64+0x87/0x150 [ 561.670629] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 561.670632] -> #0 (&hdev->lock){+.+.}-{3:3}: [ 561.670636] __lock_acquire+0x32ad/0x6ab0 [ 561.670639] lock_acquire.part.0+0x118/0x360 [ 561.670642] lock_acquire+0x7c/0xc0 [ 561.670644] __mutex_lock+0x18d/0x12f0 [ 561.670647] mutex_lock_nested+0x1b/0x30 [ 561.670651] iso_conn_big_sync+0x73/0x260 [bluetooth] [ 561.670687] iso_sock_recvmsg+0x3e9/0x500 [bluetooth] [ 561.670722] sock_recvmsg+0x1d5/0x240 [ 561.670725] sock_read_iter+0x27d/0x470 [ 561.670727] vfs_read+0x9a0/0xd30 [ 561.670731] ksys_read+0x1a8/0x250 [ 561.670733] __x64_sys_read+0x72/0xc0 [ 561.670736] x64_sys_call+0x1b12/0x25f0 [ 561.670738] do_syscall_64+0x87/0x150 [ 561.670741] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 561.670744] other info that might help us debug this: [ 561.670745] Chain exists of: &hdev->lock --> sk_lock-AF_BLUETOOTH-BTPROTO_ISO --> sk_lock-AF_BLUETOOTH [ 561.670751] Possible unsafe locking scenario: [ 561.670753] CPU0 CPU1 [ 561.670754] ---- ---- [ 561.670756] lock(sk_lock-AF_BLUETOOTH); [ 561.670758] lock(sk_lock AF_BLUETOOTH-BTPROTO_ISO); [ 561.670761] lock(sk_lock-AF_BLUETOOTH); [ 561.670764] lock(&hdev->lock); [ 561.670767] *** DEADLOCK ***
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1360e5b6ce63d63d23223a659ca2bbafa30a53aa , < cbe640d6cae590b9a7d81ce86fe9a90e83eec1d5 (git)
Affected: 07a9342b94a91b306ed1cf6aa8254aea210764c9 , < 7a17308c17880d259105f6e591eb1bc77b9612f0 (git)
Affected: bfec1e55314896bf4a4cfdb3a9ad4872be9f06ed (git)
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    Linux Linux Affected: 6.12.2 , < 6.12.6 (semver)
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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-54191",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:55:33.815501Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-667",
                "description": "CWE-667 Improper Locking",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:57:21.849Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/iso.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "cbe640d6cae590b9a7d81ce86fe9a90e83eec1d5",
              "status": "affected",
              "version": "1360e5b6ce63d63d23223a659ca2bbafa30a53aa",
              "versionType": "git"
            },
            {
              "lessThan": "7a17308c17880d259105f6e591eb1bc77b9612f0",
              "status": "affected",
              "version": "07a9342b94a91b306ed1cf6aa8254aea210764c9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bfec1e55314896bf4a4cfdb3a9ad4872be9f06ed",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/iso.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6.12.6",
              "status": "affected",
              "version": "6.12.2",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.6",
                  "versionStartIncluding": "6.12.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.11.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: iso: Fix circular lock in iso_conn_big_sync\n\nThis fixes the circular locking dependency warning below, by reworking\niso_sock_recvmsg, to ensure that the socket lock is always released\nbefore calling a function that locks hdev.\n\n[  561.670344] ======================================================\n[  561.670346] WARNING: possible circular locking dependency detected\n[  561.670349] 6.12.0-rc6+ #26 Not tainted\n[  561.670351] ------------------------------------------------------\n[  561.670353] iso-tester/3289 is trying to acquire lock:\n[  561.670355] ffff88811f600078 (\u0026hdev-\u003elock){+.+.}-{3:3},\n               at: iso_conn_big_sync+0x73/0x260 [bluetooth]\n[  561.670405]\n               but task is already holding lock:\n[  561.670407] ffff88815af58258 (sk_lock-AF_BLUETOOTH){+.+.}-{0:0},\n               at: iso_sock_recvmsg+0xbf/0x500 [bluetooth]\n[  561.670450]\n               which lock already depends on the new lock.\n\n[  561.670452]\n               the existing dependency chain (in reverse order) is:\n[  561.670453]\n               -\u003e #2 (sk_lock-AF_BLUETOOTH){+.+.}-{0:0}:\n[  561.670458]        lock_acquire+0x7c/0xc0\n[  561.670463]        lock_sock_nested+0x3b/0xf0\n[  561.670467]        bt_accept_dequeue+0x1a5/0x4d0 [bluetooth]\n[  561.670510]        iso_sock_accept+0x271/0x830 [bluetooth]\n[  561.670547]        do_accept+0x3dd/0x610\n[  561.670550]        __sys_accept4+0xd8/0x170\n[  561.670553]        __x64_sys_accept+0x74/0xc0\n[  561.670556]        x64_sys_call+0x17d6/0x25f0\n[  561.670559]        do_syscall_64+0x87/0x150\n[  561.670563]        entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[  561.670567]\n               -\u003e #1 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO){+.+.}-{0:0}:\n[  561.670571]        lock_acquire+0x7c/0xc0\n[  561.670574]        lock_sock_nested+0x3b/0xf0\n[  561.670577]        iso_sock_listen+0x2de/0xf30 [bluetooth]\n[  561.670617]        __sys_listen_socket+0xef/0x130\n[  561.670620]        __x64_sys_listen+0xe1/0x190\n[  561.670623]        x64_sys_call+0x2517/0x25f0\n[  561.670626]        do_syscall_64+0x87/0x150\n[  561.670629]        entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[  561.670632]\n               -\u003e #0 (\u0026hdev-\u003elock){+.+.}-{3:3}:\n[  561.670636]        __lock_acquire+0x32ad/0x6ab0\n[  561.670639]        lock_acquire.part.0+0x118/0x360\n[  561.670642]        lock_acquire+0x7c/0xc0\n[  561.670644]        __mutex_lock+0x18d/0x12f0\n[  561.670647]        mutex_lock_nested+0x1b/0x30\n[  561.670651]        iso_conn_big_sync+0x73/0x260 [bluetooth]\n[  561.670687]        iso_sock_recvmsg+0x3e9/0x500 [bluetooth]\n[  561.670722]        sock_recvmsg+0x1d5/0x240\n[  561.670725]        sock_read_iter+0x27d/0x470\n[  561.670727]        vfs_read+0x9a0/0xd30\n[  561.670731]        ksys_read+0x1a8/0x250\n[  561.670733]        __x64_sys_read+0x72/0xc0\n[  561.670736]        x64_sys_call+0x1b12/0x25f0\n[  561.670738]        do_syscall_64+0x87/0x150\n[  561.670741]        entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[  561.670744]\n               other info that might help us debug this:\n\n[  561.670745] Chain exists of:\n\u0026hdev-\u003elock --\u003e sk_lock-AF_BLUETOOTH-BTPROTO_ISO --\u003e sk_lock-AF_BLUETOOTH\n\n[  561.670751]  Possible unsafe locking scenario:\n\n[  561.670753]        CPU0                    CPU1\n[  561.670754]        ----                    ----\n[  561.670756]   lock(sk_lock-AF_BLUETOOTH);\n[  561.670758]                                lock(sk_lock\n                                              AF_BLUETOOTH-BTPROTO_ISO);\n[  561.670761]                                lock(sk_lock-AF_BLUETOOTH);\n[  561.670764]   lock(\u0026hdev-\u003elock);\n[  561.670767]\n                *** DEADLOCK ***"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T13:00:48.976Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/cbe640d6cae590b9a7d81ce86fe9a90e83eec1d5"
        },
        {
          "url": "https://git.kernel.org/stable/c/7a17308c17880d259105f6e591eb1bc77b9612f0"
        }
      ],
      "title": "Bluetooth: iso: Fix circular lock in iso_conn_big_sync",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-54191",
    "datePublished": "2025-01-11T12:29:52.753Z",
    "dateReserved": "2025-01-09T09:49:29.716Z",
    "dateUpdated": "2025-10-01T19:57:21.849Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-54191\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-01-11T13:15:26.667\",\"lastModified\":\"2025-10-01T20:17:23.747\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: iso: Fix circular lock in iso_conn_big_sync\\n\\nThis fixes the circular locking dependency warning below, by reworking\\niso_sock_recvmsg, to ensure that the socket lock is always released\\nbefore calling a function that locks hdev.\\n\\n[  561.670344] ======================================================\\n[  561.670346] WARNING: possible circular locking dependency detected\\n[  561.670349] 6.12.0-rc6+ #26 Not tainted\\n[  561.670351] ------------------------------------------------------\\n[  561.670353] iso-tester/3289 is trying to acquire lock:\\n[  561.670355] ffff88811f600078 (\u0026hdev-\u003elock){+.+.}-{3:3},\\n               at: iso_conn_big_sync+0x73/0x260 [bluetooth]\\n[  561.670405]\\n               but task is already holding lock:\\n[  561.670407] ffff88815af58258 (sk_lock-AF_BLUETOOTH){+.+.}-{0:0},\\n               at: iso_sock_recvmsg+0xbf/0x500 [bluetooth]\\n[  561.670450]\\n               which lock already depends on the new lock.\\n\\n[  561.670452]\\n               the existing dependency chain (in reverse order) is:\\n[  561.670453]\\n               -\u003e #2 (sk_lock-AF_BLUETOOTH){+.+.}-{0:0}:\\n[  561.670458]        lock_acquire+0x7c/0xc0\\n[  561.670463]        lock_sock_nested+0x3b/0xf0\\n[  561.670467]        bt_accept_dequeue+0x1a5/0x4d0 [bluetooth]\\n[  561.670510]        iso_sock_accept+0x271/0x830 [bluetooth]\\n[  561.670547]        do_accept+0x3dd/0x610\\n[  561.670550]        __sys_accept4+0xd8/0x170\\n[  561.670553]        __x64_sys_accept+0x74/0xc0\\n[  561.670556]        x64_sys_call+0x17d6/0x25f0\\n[  561.670559]        do_syscall_64+0x87/0x150\\n[  561.670563]        entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n[  561.670567]\\n               -\u003e #1 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO){+.+.}-{0:0}:\\n[  561.670571]        lock_acquire+0x7c/0xc0\\n[  561.670574]        lock_sock_nested+0x3b/0xf0\\n[  561.670577]        iso_sock_listen+0x2de/0xf30 [bluetooth]\\n[  561.670617]        __sys_listen_socket+0xef/0x130\\n[  561.670620]        __x64_sys_listen+0xe1/0x190\\n[  561.670623]        x64_sys_call+0x2517/0x25f0\\n[  561.670626]        do_syscall_64+0x87/0x150\\n[  561.670629]        entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n[  561.670632]\\n               -\u003e #0 (\u0026hdev-\u003elock){+.+.}-{3:3}:\\n[  561.670636]        __lock_acquire+0x32ad/0x6ab0\\n[  561.670639]        lock_acquire.part.0+0x118/0x360\\n[  561.670642]        lock_acquire+0x7c/0xc0\\n[  561.670644]        __mutex_lock+0x18d/0x12f0\\n[  561.670647]        mutex_lock_nested+0x1b/0x30\\n[  561.670651]        iso_conn_big_sync+0x73/0x260 [bluetooth]\\n[  561.670687]        iso_sock_recvmsg+0x3e9/0x500 [bluetooth]\\n[  561.670722]        sock_recvmsg+0x1d5/0x240\\n[  561.670725]        sock_read_iter+0x27d/0x470\\n[  561.670727]        vfs_read+0x9a0/0xd30\\n[  561.670731]        ksys_read+0x1a8/0x250\\n[  561.670733]        __x64_sys_read+0x72/0xc0\\n[  561.670736]        x64_sys_call+0x1b12/0x25f0\\n[  561.670738]        do_syscall_64+0x87/0x150\\n[  561.670741]        entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n[  561.670744]\\n               other info that might help us debug this:\\n\\n[  561.670745] Chain exists of:\\n\u0026hdev-\u003elock --\u003e sk_lock-AF_BLUETOOTH-BTPROTO_ISO --\u003e sk_lock-AF_BLUETOOTH\\n\\n[  561.670751]  Possible unsafe locking scenario:\\n\\n[  561.670753]        CPU0                    CPU1\\n[  561.670754]        ----                    ----\\n[  561.670756]   lock(sk_lock-AF_BLUETOOTH);\\n[  561.670758]                                lock(sk_lock\\n                                              AF_BLUETOOTH-BTPROTO_ISO);\\n[  561.670761]                                lock(sk_lock-AF_BLUETOOTH);\\n[  561.670764]   lock(\u0026hdev-\u003elock);\\n[  561.670767]\\n                *** DEADLOCK ***\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: iso: Corregir bloqueo circular en iso_conn_big_sync Esto corrige la advertencia de dependencia de bloqueo circular a continuaci\u00f3n, al reelaborar iso_sock_recvmsg, para garantizar que el bloqueo del socket siempre se libere antes de llamar a una funci\u00f3n que bloquea hdev. [ 561.670344] ========================================================= [ 561.670346] ADVERTENCIA: posible dependencia de bloqueo circular detectada [ 561.670349] 6.12.0-rc6+ #26 No contaminado [ 561.670351] ------------------------------------------------------ [ 561.670353] iso-tester/3289 est\u00e1 intentando adquirir bloqueo: [ 561.670355] ffff88811f600078 (\u0026amp;hdev-\u0026gt;lock){+.+.}-{3:3}, en: iso_conn_big_sync+0x73/0x260 [bluetooth] [ 561.670405] pero la tarea ya tiene el bloqueo: [ 561.670407] ffff88815af58258 (sk_lock-AF_BLUETOOTH){+.+.}-{0:0}, en: iso_sock_recvmsg+0xbf/0x500 [bluetooth] [ 561.670450] cuyo bloqueo ya depende del nuevo bloqueo. [ 561.670452] la cadena de dependencia existente (en orden inverso) es: [ 561.670453] -\u0026gt; #2 (sk_lock-AF_BLUETOOTH){+.+.}-{0:0}: [ 561.670458] lock_acquire+0x7c/0xc0 [ 561.670463] lock_sock_nested+0x3b/0xf0 [ 561.670467] bt_accept_dequeue+0x1a5/0x4d0 [bluetooth] [ 561.670510] iso_sock_accept+0x271/0x830 [bluetooth] [ 561.670547] do_accept+0x3dd/0x610 [ 561.670550] __sys_accept4+0xd8/0x170 [ 561.670553] __x64_sys_accept+0x74/0xc0 [ 561.670556] x64_sys_call+0x17d6/0x25f0 [ 561.670559] hacer_syscall_64+0x87/0x150 [ 561.670563] entrada_SYSCALL_64_after_hwframe+0x76/0x7e [ 561.670567] -\u0026gt; #1 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO){+.+.}-{0:0}: [ 561.670571] bloqueo_adquirir+0x7c/0xc0 [ 561.670574] lock_sock_nested+0x3b/0xf0 [ 561.670577] iso_sock_listen+0x2de/0xf30 [bluetooth] [ 561.670617] __sys_listen_socket+0xef/0x130 [ 561.670620] __x64_sys_listen+0xe1/0x190 [ 561.670623] x64_sys_call+0x2517/0x25f0 [ 561.670626] hacer_syscall_64+0x87/0x150 [ 561.670629] entrada_SYSCALL_64_despu\u00e9s_de_hwframe+0x76/0x7e [ 561.670632] -\u0026gt; #0 (\u0026amp;hdev-\u0026gt;lock){+.+.}-{3:3}: [ 561.670636] __lock_acquire+0x32ad/0x6ab0 [ 561.670639] lock_acquire.part.0+0x118/0x360 [ 561.670642] lock_acquire+0x7c/0xc0 [ 561.670644] __mutex_lock+0x18d/0x12f0 [ 561.670647] mutex_lock_nested+0x1b/0x30 [ 561.670651] iso_conn_big_sync+0x73/0x260 [bluetooth] [ 561.670687] iso_sock_recvmsg+0x3e9/0x500 [bluetooth] [561.670722] sock_recvmsg+0x1d5/0x240 [561.670725] sock_read_iter+0x27d/0x470 [561.670727] vfs_read+0x9a0/0xd30 [561.670731] ksys_read+0x1a8/0x250 [561.670733] __x64_sys_read+0x72/0xc0 [561.670736] x64_sys_call+0x1b12/0x25f0 [561.670738] do_syscall_64+0x87/0x150 [ 561.670741] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 561.670744] otra informaci\u00f3n que podr\u00eda ayudarnos a depurar esto: [ 561.670745] La cadena existe de: \u0026amp;hdev-\u0026gt;lock --\u0026gt; sk_lock-AF_BLUETOOTH-BTPROTO_ISO --\u0026gt; sk_lock-AF_BLUETOOTH [ 561.670751] Posible escenario de bloqueo inseguro: [ 561.670753] CPU0 CPU1 [ 561.670754] ---- ---- [ 561.670756] lock(sk_lock-AF_BLUETOOTH); [ 561.670758] bloqueo(sk_lock AF_BLUETOOTH-BTPROTO_ISO); [ 561.670761] bloqueo(sk_lock-AF_BLUETOOTH); [ 561.670764] bloqueo(\u0026amp;hdev-\u0026gt;lock); [ 561.670767] *** BLOQUEO INTERMEDIO ***\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-667\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-667\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.11.11\",\"versionEndExcluding\":\"6.12\",\"matchCriteriaId\":\"4CBF5F6E-D446-4CAE-AAA4-413442319824\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.12.2\",\"versionEndExcluding\":\"6.12.6\",\"matchCriteriaId\":\"56F9CCF9-9EA2-4DE9-BBC1-74C3D2046E55\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"62567B3C-6CEE-46D0-BC2E-B3717FBF7D13\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"5A073481-106D-4B15-B4C7-FB0213B8E1D4\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/7a17308c17880d259105f6e591eb1bc77b9612f0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cbe640d6cae590b9a7d81ce86fe9a90e83eec1d5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T13:00:48.976Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: iso: Fix circular lock in iso_conn_big_sync\\n\\nThis fixes the circular locking dependency warning below, by reworking\\niso_sock_recvmsg, to ensure that the socket lock is always released\\nbefore calling a function that locks hdev.\\n\\n[  561.670344] ======================================================\\n[  561.670346] WARNING: possible circular locking dependency detected\\n[  561.670349] 6.12.0-rc6+ #26 Not tainted\\n[  561.670351] ------------------------------------------------------\\n[  561.670353] iso-tester/3289 is trying to acquire lock:\\n[  561.670355] ffff88811f600078 (\u0026hdev-\u003elock){+.+.}-{3:3},\\n               at: iso_conn_big_sync+0x73/0x260 [bluetooth]\\n[  561.670405]\\n               but task is already holding lock:\\n[  561.670407] ffff88815af58258 (sk_lock-AF_BLUETOOTH){+.+.}-{0:0},\\n               at: iso_sock_recvmsg+0xbf/0x500 [bluetooth]\\n[  561.670450]\\n               which lock already depends on the new lock.\\n\\n[  561.670452]\\n               the existing dependency chain (in reverse order) is:\\n[  561.670453]\\n               -\u003e #2 (sk_lock-AF_BLUETOOTH){+.+.}-{0:0}:\\n[  561.670458]        lock_acquire+0x7c/0xc0\\n[  561.670463]        lock_sock_nested+0x3b/0xf0\\n[  561.670467]        bt_accept_dequeue+0x1a5/0x4d0 [bluetooth]\\n[  561.670510]        iso_sock_accept+0x271/0x830 [bluetooth]\\n[  561.670547]        do_accept+0x3dd/0x610\\n[  561.670550]        __sys_accept4+0xd8/0x170\\n[  561.670553]        __x64_sys_accept+0x74/0xc0\\n[  561.670556]        x64_sys_call+0x17d6/0x25f0\\n[  561.670559]        do_syscall_64+0x87/0x150\\n[  561.670563]        entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n[  561.670567]\\n               -\u003e #1 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO){+.+.}-{0:0}:\\n[  561.670571]        lock_acquire+0x7c/0xc0\\n[  561.670574]        lock_sock_nested+0x3b/0xf0\\n[  561.670577]        iso_sock_listen+0x2de/0xf30 [bluetooth]\\n[  561.670617]        __sys_listen_socket+0xef/0x130\\n[  561.670620]        __x64_sys_listen+0xe1/0x190\\n[  561.670623]        x64_sys_call+0x2517/0x25f0\\n[  561.670626]        do_syscall_64+0x87/0x150\\n[  561.670629]        entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n[  561.670632]\\n               -\u003e #0 (\u0026hdev-\u003elock){+.+.}-{3:3}:\\n[  561.670636]        __lock_acquire+0x32ad/0x6ab0\\n[  561.670639]        lock_acquire.part.0+0x118/0x360\\n[  561.670642]        lock_acquire+0x7c/0xc0\\n[  561.670644]        __mutex_lock+0x18d/0x12f0\\n[  561.670647]        mutex_lock_nested+0x1b/0x30\\n[  561.670651]        iso_conn_big_sync+0x73/0x260 [bluetooth]\\n[  561.670687]        iso_sock_recvmsg+0x3e9/0x500 [bluetooth]\\n[  561.670722]        sock_recvmsg+0x1d5/0x240\\n[  561.670725]        sock_read_iter+0x27d/0x470\\n[  561.670727]        vfs_read+0x9a0/0xd30\\n[  561.670731]        ksys_read+0x1a8/0x250\\n[  561.670733]        __x64_sys_read+0x72/0xc0\\n[  561.670736]        x64_sys_call+0x1b12/0x25f0\\n[  561.670738]        do_syscall_64+0x87/0x150\\n[  561.670741]        entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n[  561.670744]\\n               other info that might help us debug this:\\n\\n[  561.670745] Chain exists of:\\n\u0026hdev-\u003elock --\u003e sk_lock-AF_BLUETOOTH-BTPROTO_ISO --\u003e sk_lock-AF_BLUETOOTH\\n\\n[  561.670751]  Possible unsafe locking scenario:\\n\\n[  561.670753]        CPU0                    CPU1\\n[  561.670754]        ----                    ----\\n[  561.670756]   lock(sk_lock-AF_BLUETOOTH);\\n[  561.670758]                                lock(sk_lock\\n                                              AF_BLUETOOTH-BTPROTO_ISO);\\n[  561.670761]                                lock(sk_lock-AF_BLUETOOTH);\\n[  561.670764]   lock(\u0026hdev-\u003elock);\\n[  561.670767]\\n                *** DEADLOCK ***\"}], \"affected\": [{\"product\": \"Linux\", \"vendor\": \"Linux\", \"defaultStatus\": \"unaffected\", \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"programFiles\": [\"net/bluetooth/iso.c\"], \"versions\": [{\"version\": \"1360e5b6ce63d63d23223a659ca2bbafa30a53aa\", \"lessThan\": \"cbe640d6cae590b9a7d81ce86fe9a90e83eec1d5\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"07a9342b94a91b306ed1cf6aa8254aea210764c9\", \"lessThan\": \"7a17308c17880d259105f6e591eb1bc77b9612f0\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"bfec1e55314896bf4a4cfdb3a9ad4872be9f06ed\", \"status\": \"affected\", \"versionType\": \"git\"}]}, {\"product\": \"Linux\", \"vendor\": \"Linux\", \"defaultStatus\": \"unaffected\", \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"programFiles\": [\"net/bluetooth/iso.c\"], \"versions\": [{\"version\": \"6.12.2\", \"lessThan\": \"6.12.6\", \"status\": \"affected\", \"versionType\": \"semver\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.12.2\", \"versionEndExcluding\": \"6.12.6\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.11.11\"}]}]}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/cbe640d6cae590b9a7d81ce86fe9a90e83eec1d5\"}, {\"url\": \"https://git.kernel.org/stable/c/7a17308c17880d259105f6e591eb1bc77b9612f0\"}], \"title\": \"Bluetooth: iso: Fix circular lock in iso_conn_big_sync\", \"x_generator\": {\"engine\": \"bippy-1.2.0\"}}, \"adp\": [{\"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-54191\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T19:55:33.815501Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-667\", \"description\": \"CWE-667 Improper Locking\"}]}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2025-10-01T15:52:55.619Z\"}, \"title\": \"CISA ADP Vulnrichment\"}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-54191\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Linux\", \"dateReserved\": \"2025-01-09T09:49:29.716Z\", \"datePublished\": \"2025-01-11T12:29:52.753Z\", \"dateUpdated\": \"2025-05-04T13:00:48.976Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

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.