fkie_cve-2024-54460
Vulnerability from fkie_nvd
Published
2025-01-11 13:15
Modified
2025-01-16 15:15
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: iso: Fix circular lock in iso_listen_bis This fixes the circular locking dependency warning below, by releasing the socket lock before enterning iso_listen_bis, to avoid any potential deadlock with hdev lock. [ 75.307983] ====================================================== [ 75.307984] WARNING: possible circular locking dependency detected [ 75.307985] 6.12.0-rc6+ #22 Not tainted [ 75.307987] ------------------------------------------------------ [ 75.307987] kworker/u81:2/2623 is trying to acquire lock: [ 75.307988] ffff8fde1769da58 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO) at: iso_connect_cfm+0x253/0x840 [bluetooth] [ 75.308021] but task is already holding lock: [ 75.308022] ffff8fdd61a10078 (&hdev->lock) at: hci_le_per_adv_report_evt+0x47/0x2f0 [bluetooth] [ 75.308053] which lock already depends on the new lock. [ 75.308054] the existing dependency chain (in reverse order) is: [ 75.308055] -> #1 (&hdev->lock){+.+.}-{3:3}: [ 75.308057] __mutex_lock+0xad/0xc50 [ 75.308061] mutex_lock_nested+0x1b/0x30 [ 75.308063] iso_sock_listen+0x143/0x5c0 [bluetooth] [ 75.308085] __sys_listen_socket+0x49/0x60 [ 75.308088] __x64_sys_listen+0x4c/0x90 [ 75.308090] x64_sys_call+0x2517/0x25f0 [ 75.308092] do_syscall_64+0x87/0x150 [ 75.308095] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 75.308098] -> #0 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO){+.+.}-{0:0}: [ 75.308100] __lock_acquire+0x155e/0x25f0 [ 75.308103] lock_acquire+0xc9/0x300 [ 75.308105] lock_sock_nested+0x32/0x90 [ 75.308107] iso_connect_cfm+0x253/0x840 [bluetooth] [ 75.308128] hci_connect_cfm+0x6c/0x190 [bluetooth] [ 75.308155] hci_le_per_adv_report_evt+0x27b/0x2f0 [bluetooth] [ 75.308180] hci_le_meta_evt+0xe7/0x200 [bluetooth] [ 75.308206] hci_event_packet+0x21f/0x5c0 [bluetooth] [ 75.308230] hci_rx_work+0x3ae/0xb10 [bluetooth] [ 75.308254] process_one_work+0x212/0x740 [ 75.308256] worker_thread+0x1bd/0x3a0 [ 75.308258] kthread+0xe4/0x120 [ 75.308259] ret_from_fork+0x44/0x70 [ 75.308261] ret_from_fork_asm+0x1a/0x30 [ 75.308263] other info that might help us debug this: [ 75.308264] Possible unsafe locking scenario: [ 75.308264] CPU0 CPU1 [ 75.308265] ---- ---- [ 75.308265] lock(&hdev->lock); [ 75.308267] lock(sk_lock- AF_BLUETOOTH-BTPROTO_ISO); [ 75.308268] lock(&hdev->lock); [ 75.308269] lock(sk_lock-AF_BLUETOOTH-BTPROTO_ISO); [ 75.308270] *** DEADLOCK *** [ 75.308271] 4 locks held by kworker/u81:2/2623: [ 75.308272] #0: ffff8fdd66e52148 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work+0x443/0x740 [ 75.308276] #1: ffffafb488b7fe48 ((work_completion)(&hdev->rx_work)), at: process_one_work+0x1ce/0x740 [ 75.308280] #2: ffff8fdd61a10078 (&hdev->lock){+.+.}-{3:3} at: hci_le_per_adv_report_evt+0x47/0x2f0 [bluetooth] [ 75.308304] #3: ffffffffb6ba4900 (rcu_read_lock){....}-{1:2}, at: hci_connect_cfm+0x29/0x190 [bluetooth]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/168e28305b871d8ec604a8f51f35467b8d7ba05bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c541d7b5e17987ed330798b07d4ad508859c1c93Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.13
linux linux_kernel 6.13


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9C6C7E91-EB56-47C5-AB8F-8E569B8E5D4C",
              "versionEndExcluding": "6.12.6",
              "versionStartIncluding": "6.8.12",
              "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",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: iso: Fix circular lock in iso_listen_bis\n\nThis fixes the circular locking dependency warning below, by\nreleasing the socket lock before enterning iso_listen_bis, to\navoid any potential deadlock with hdev lock.\n\n[   75.307983] ======================================================\n[   75.307984] WARNING: possible circular locking dependency detected\n[   75.307985] 6.12.0-rc6+ #22 Not tainted\n[   75.307987] ------------------------------------------------------\n[   75.307987] kworker/u81:2/2623 is trying to acquire lock:\n[   75.307988] ffff8fde1769da58 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO)\n               at: iso_connect_cfm+0x253/0x840 [bluetooth]\n[   75.308021]\n               but task is already holding lock:\n[   75.308022] ffff8fdd61a10078 (\u0026hdev-\u003elock)\n               at: hci_le_per_adv_report_evt+0x47/0x2f0 [bluetooth]\n[   75.308053]\n               which lock already depends on the new lock.\n\n[   75.308054]\n               the existing dependency chain (in reverse order) is:\n[   75.308055]\n               -\u003e #1 (\u0026hdev-\u003elock){+.+.}-{3:3}:\n[   75.308057]        __mutex_lock+0xad/0xc50\n[   75.308061]        mutex_lock_nested+0x1b/0x30\n[   75.308063]        iso_sock_listen+0x143/0x5c0 [bluetooth]\n[   75.308085]        __sys_listen_socket+0x49/0x60\n[   75.308088]        __x64_sys_listen+0x4c/0x90\n[   75.308090]        x64_sys_call+0x2517/0x25f0\n[   75.308092]        do_syscall_64+0x87/0x150\n[   75.308095]        entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[   75.308098]\n               -\u003e #0 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO){+.+.}-{0:0}:\n[   75.308100]        __lock_acquire+0x155e/0x25f0\n[   75.308103]        lock_acquire+0xc9/0x300\n[   75.308105]        lock_sock_nested+0x32/0x90\n[   75.308107]        iso_connect_cfm+0x253/0x840 [bluetooth]\n[   75.308128]        hci_connect_cfm+0x6c/0x190 [bluetooth]\n[   75.308155]        hci_le_per_adv_report_evt+0x27b/0x2f0 [bluetooth]\n[   75.308180]        hci_le_meta_evt+0xe7/0x200 [bluetooth]\n[   75.308206]        hci_event_packet+0x21f/0x5c0 [bluetooth]\n[   75.308230]        hci_rx_work+0x3ae/0xb10 [bluetooth]\n[   75.308254]        process_one_work+0x212/0x740\n[   75.308256]        worker_thread+0x1bd/0x3a0\n[   75.308258]        kthread+0xe4/0x120\n[   75.308259]        ret_from_fork+0x44/0x70\n[   75.308261]        ret_from_fork_asm+0x1a/0x30\n[   75.308263]\n               other info that might help us debug this:\n\n[   75.308264]  Possible unsafe locking scenario:\n\n[   75.308264]        CPU0                CPU1\n[   75.308265]        ----                ----\n[   75.308265]   lock(\u0026hdev-\u003elock);\n[   75.308267]                            lock(sk_lock-\n                                                AF_BLUETOOTH-BTPROTO_ISO);\n[   75.308268]                            lock(\u0026hdev-\u003elock);\n[   75.308269]   lock(sk_lock-AF_BLUETOOTH-BTPROTO_ISO);\n[   75.308270]\n                *** DEADLOCK ***\n\n[   75.308271] 4 locks held by kworker/u81:2/2623:\n[   75.308272]  #0: ffff8fdd66e52148 ((wq_completion)hci0#2){+.+.}-{0:0},\n                at: process_one_work+0x443/0x740\n[   75.308276]  #1: ffffafb488b7fe48 ((work_completion)(\u0026hdev-\u003erx_work)),\n                at: process_one_work+0x1ce/0x740\n[   75.308280]  #2: ffff8fdd61a10078 (\u0026hdev-\u003elock){+.+.}-{3:3}\n                at: hci_le_per_adv_report_evt+0x47/0x2f0 [bluetooth]\n[   75.308304]  #3: ffffffffb6ba4900 (rcu_read_lock){....}-{1:2},\n                at: hci_connect_cfm+0x29/0x190 [bluetooth]"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: iso: Corregir bloqueo circular en iso_listen_bis Esto corrige la advertencia de dependencia de bloqueo circular a continuaci\u00f3n, liberando el bloqueo del socket antes de ingresar a iso_listen_bis, para evitar cualquier posible bloqueo con el bloqueo hdev. [ 75.307983] ========================================================= [ 75.307984] ADVERTENCIA: posible dependencia de bloqueo circular detectada [ 75.307985] 6.12.0-rc6+ #22 No contaminado [ 75.307987] ------------------------------------------------------ [ 75.307987] kworker/u81:2/2623 est\u00e1 intentando adquirir el bloqueo: [ 75.307988] ffff8fde1769da58 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO) en: iso_connect_cfm+0x253/0x840 [bluetooth] [ 75.308021] pero la tarea ya tiene el bloqueo: [ 75.308022] ffff8fdd61a10078 (\u0026amp;hdev-\u0026gt;lock) en: hci_le_per_adv_report_evt+0x47/0x2f0 [bluetooth] [ 75.308053] cuyo bloqueo ya depende del nuevo bloqueo. [ 75.308054] la cadena de dependencia existente (en orden inverso) es: [ 75.308055] -\u0026gt; #1 (\u0026amp;hdev-\u0026gt;lock){+.+.}-{3:3}: [ 75.308057] __mutex_lock+0xad/0xc50 [ 75.308061] mutex_lock_nested+0x1b/0x30 [ 75.308063] iso_sock_listen+0x143/0x5c0 [bluetooth] [ 75.308085] __sys_listen_socket+0x49/0x60 [ 75.308088] __x64_sys_listen+0x4c/0x90 [ 75.308090] x64_sys_call+0x2517/0x25f0 [ 75.308092] hacer_syscall_64+0x87/0x150 [ 75.308095] entrada_SYSCALL_64_despu\u00e9s_de_hwframe+0x76/0x7e [ 75.308098] -\u0026gt; #0 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO){+.+.}-{0:0}: [ 75.308100] __lock_acquire+0x155e/0x25f0 [ 75.308103] lock_acquire+0xc9/0x300 [ 75.308105] lock_sock_nested+0x32/0x90 [ 75.308107] iso_connect_cfm+0x253/0x840 [bluetooth] [ 75.308128] hci_connect_cfm+0x6c/0x190 [bluetooth] [ 75.308155] hci_le_per_adv_report_evt+0x27b/0x2f0 [bluetooth] [ 75.308180] hci_le_meta_evt+0xe7/0x200 [bluetooth] [ 75.308206] hci_event_packet+0x21f/0x5c0 [bluetooth] [ 75.308230] hci_rx_work+0x3ae/0xb10 [bluetooth] [ 75.308254] process_one_work+0x212/0x740 [ 75.308256] worker_thread+0x1bd/0x3a0 [ 75.308258] kthread+0xe4/0x120 [ 75.308259] ret_from_fork+0x44/0x70 [ 75.308261] ret_from_fork_asm+0x1a/0x30 [ 75.308263] otra informaci\u00f3n que podr\u00eda ayudarnos a depurar esto: [ 75.308264] Posible escenario de bloqueo inseguro: [ 75.308264] CPU0 CPU1 [ 75.308265] ---- ---- [ 75.308265] lock(\u0026amp;hdev-\u0026gt;lock); [ 75.308267] lock(sk_lock- AF_BLUETOOTH-BTPROTO_ISO); [ 75.308268] bloquear(\u0026amp;hdev-\u0026gt;bloquear); [ 75.308269] bloquear(sk_lock-AF_BLUETOOTH-BTPROTO_ISO); [ 75.308270] *** BLOQUEO INTERMEDIO *** [ 75.308271] 4 bloqueos mantenidos por kworker/u81:2/2623: [ 75.308272] #0: ffff8fdd66e52148 ((wq_completion)hci0#2){+.+.}-{0:0}, en: process_one_work+0x443/0x740 [ 75.308276] #1: ffffafb488b7fe48 ((work_completion)(\u0026amp;hdev-\u0026gt;rx_work)), en: process_one_work+0x1ce/0x740 [ 75.308280] #2: ffff8fdd61a10078 (\u0026amp;hdev-\u0026gt;lock){+.+.}-{3:3} en: hci_le_per_adv_report_evt+0x47/0x2f0 [bluetooth] [ 75.308304] #3: ffffffffb6ba4900 (rcu_read_lock){....}-{1:2}, en: hci_connect_cfm+0x29/0x190 [bluetooth]"
    }
  ],
  "id": "CVE-2024-54460",
  "lastModified": "2025-01-16T15:15:42.083",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-01-11T13:15:27.157",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/168e28305b871d8ec604a8f51f35467b8d7ba05b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c541d7b5e17987ed330798b07d4ad508859c1c93"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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