fkie_cve-2024-36009
Vulnerability from fkie_nvd
Published
2024-05-20 10:15
Modified
2025-09-23 18:47
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: ax25: Fix netdev refcount issue The dev_tracker is added to ax25_cb in ax25_bind(). When the ax25 device is detaching, the dev_tracker of ax25_cb should be deallocated in ax25_kill_by_device() instead of the dev_tracker of ax25_dev. The log reported by ref_tracker is shown below: [ 80.884935] ref_tracker: reference already released. [ 80.885150] ref_tracker: allocated in: [ 80.885349] ax25_dev_device_up+0x105/0x540 [ 80.885730] ax25_device_event+0xa4/0x420 [ 80.885730] notifier_call_chain+0xc9/0x1e0 [ 80.885730] __dev_notify_flags+0x138/0x280 [ 80.885730] dev_change_flags+0xd7/0x180 [ 80.885730] dev_ifsioc+0x6a9/0xa30 [ 80.885730] dev_ioctl+0x4d8/0xd90 [ 80.885730] sock_do_ioctl+0x1c2/0x2d0 [ 80.885730] sock_ioctl+0x38b/0x4f0 [ 80.885730] __se_sys_ioctl+0xad/0xf0 [ 80.885730] do_syscall_64+0xc4/0x1b0 [ 80.885730] entry_SYSCALL_64_after_hwframe+0x67/0x6f [ 80.885730] ref_tracker: freed in: [ 80.885730] ax25_device_event+0x272/0x420 [ 80.885730] notifier_call_chain+0xc9/0x1e0 [ 80.885730] dev_close_many+0x272/0x370 [ 80.885730] unregister_netdevice_many_notify+0x3b5/0x1180 [ 80.885730] unregister_netdev+0xcf/0x120 [ 80.885730] sixpack_close+0x11f/0x1b0 [ 80.885730] tty_ldisc_kill+0xcb/0x190 [ 80.885730] tty_ldisc_hangup+0x338/0x3d0 [ 80.885730] __tty_hangup+0x504/0x740 [ 80.885730] tty_release+0x46e/0xd80 [ 80.885730] __fput+0x37f/0x770 [ 80.885730] __x64_sys_close+0x7b/0xb0 [ 80.885730] do_syscall_64+0xc4/0x1b0 [ 80.885730] entry_SYSCALL_64_after_hwframe+0x67/0x6f [ 80.893739] ------------[ cut here ]------------ [ 80.894030] WARNING: CPU: 2 PID: 140 at lib/ref_tracker.c:255 ref_tracker_free+0x47b/0x6b0 [ 80.894297] Modules linked in: [ 80.894929] CPU: 2 PID: 140 Comm: ax25_conn_rel_6 Not tainted 6.9.0-rc4-g8cd26fd90c1a #11 [ 80.895190] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qem4 [ 80.895514] RIP: 0010:ref_tracker_free+0x47b/0x6b0 [ 80.895808] Code: 83 c5 18 4c 89 eb 48 c1 eb 03 8a 04 13 84 c0 0f 85 df 01 00 00 41 83 7d 00 00 75 4b 4c 89 ff 9 [ 80.896171] RSP: 0018:ffff888009edf8c0 EFLAGS: 00000286 [ 80.896339] RAX: 1ffff1100141ac00 RBX: 1ffff1100149463b RCX: dffffc0000000000 [ 80.896502] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff88800a0d6518 [ 80.896925] RBP: ffff888009edf9b0 R08: ffff88806d3288d3 R09: 1ffff1100da6511a [ 80.897212] R10: dffffc0000000000 R11: ffffed100da6511b R12: ffff88800a4a31d4 [ 80.897859] R13: ffff88800a4a31d8 R14: dffffc0000000000 R15: ffff88800a0d6518 [ 80.898279] FS: 00007fd88b7fe700(0000) GS:ffff88806d300000(0000) knlGS:0000000000000000 [ 80.899436] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.900181] CR2: 00007fd88c001d48 CR3: 000000000993e000 CR4: 00000000000006f0 ... [ 80.935774] ref_tracker: sp%d@000000000bb9df3d has 1/1 users at [ 80.935774] ax25_bind+0x424/0x4e0 [ 80.935774] __sys_bind+0x1d9/0x270 [ 80.935774] __x64_sys_bind+0x75/0x80 [ 80.935774] do_syscall_64+0xc4/0x1b0 [ 80.935774] entry_SYSCALL_64_after_hwframe+0x67/0x6f Change ax25_dev->dev_tracker to the dev_tracker of ax25_cb in order to mitigate the bug.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0d14f104027e30720582448706c7d6b43065c851Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/467324bcfe1a31ec65d0cf4aa59421d6b7a7d52bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4fee8fa86a15d7790268eea458b1aec69c695530Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c42b073d9af4a5329b25b17390c63ab3847f30e8Patch
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2024/05/30/1Mailing List
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2024/05/30/2Mailing List
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0d14f104027e30720582448706c7d6b43065c851Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/467324bcfe1a31ec65d0cf4aa59421d6b7a7d52bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/4fee8fa86a15d7790268eea458b1aec69c695530Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c42b073d9af4a5329b25b17390c63ab3847f30e8Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.17
linux linux_kernel 5.17
linux linux_kernel 5.17
linux linux_kernel 5.17
linux linux_kernel 5.17
linux linux_kernel 5.17
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nax25: Fix netdev refcount issue\n\nThe dev_tracker is added to ax25_cb in ax25_bind(). When the\nax25 device is detaching, the dev_tracker of ax25_cb should be\ndeallocated in ax25_kill_by_device() instead of the dev_tracker\nof ax25_dev. The log reported by ref_tracker is shown below:\n\n[   80.884935] ref_tracker: reference already released.\n[   80.885150] ref_tracker: allocated in:\n[   80.885349]  ax25_dev_device_up+0x105/0x540\n[   80.885730]  ax25_device_event+0xa4/0x420\n[   80.885730]  notifier_call_chain+0xc9/0x1e0\n[   80.885730]  __dev_notify_flags+0x138/0x280\n[   80.885730]  dev_change_flags+0xd7/0x180\n[   80.885730]  dev_ifsioc+0x6a9/0xa30\n[   80.885730]  dev_ioctl+0x4d8/0xd90\n[   80.885730]  sock_do_ioctl+0x1c2/0x2d0\n[   80.885730]  sock_ioctl+0x38b/0x4f0\n[   80.885730]  __se_sys_ioctl+0xad/0xf0\n[   80.885730]  do_syscall_64+0xc4/0x1b0\n[   80.885730]  entry_SYSCALL_64_after_hwframe+0x67/0x6f\n[   80.885730] ref_tracker: freed in:\n[   80.885730]  ax25_device_event+0x272/0x420\n[   80.885730]  notifier_call_chain+0xc9/0x1e0\n[   80.885730]  dev_close_many+0x272/0x370\n[   80.885730]  unregister_netdevice_many_notify+0x3b5/0x1180\n[   80.885730]  unregister_netdev+0xcf/0x120\n[   80.885730]  sixpack_close+0x11f/0x1b0\n[   80.885730]  tty_ldisc_kill+0xcb/0x190\n[   80.885730]  tty_ldisc_hangup+0x338/0x3d0\n[   80.885730]  __tty_hangup+0x504/0x740\n[   80.885730]  tty_release+0x46e/0xd80\n[   80.885730]  __fput+0x37f/0x770\n[   80.885730]  __x64_sys_close+0x7b/0xb0\n[   80.885730]  do_syscall_64+0xc4/0x1b0\n[   80.885730]  entry_SYSCALL_64_after_hwframe+0x67/0x6f\n[   80.893739] ------------[ cut here ]------------\n[   80.894030] WARNING: CPU: 2 PID: 140 at lib/ref_tracker.c:255 ref_tracker_free+0x47b/0x6b0\n[   80.894297] Modules linked in:\n[   80.894929] CPU: 2 PID: 140 Comm: ax25_conn_rel_6 Not tainted 6.9.0-rc4-g8cd26fd90c1a #11\n[   80.895190] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qem4\n[   80.895514] RIP: 0010:ref_tracker_free+0x47b/0x6b0\n[   80.895808] Code: 83 c5 18 4c 89 eb 48 c1 eb 03 8a 04 13 84 c0 0f 85 df 01 00 00 41 83 7d 00 00 75 4b 4c 89 ff 9\n[   80.896171] RSP: 0018:ffff888009edf8c0 EFLAGS: 00000286\n[   80.896339] RAX: 1ffff1100141ac00 RBX: 1ffff1100149463b RCX: dffffc0000000000\n[   80.896502] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff88800a0d6518\n[   80.896925] RBP: ffff888009edf9b0 R08: ffff88806d3288d3 R09: 1ffff1100da6511a\n[   80.897212] R10: dffffc0000000000 R11: ffffed100da6511b R12: ffff88800a4a31d4\n[   80.897859] R13: ffff88800a4a31d8 R14: dffffc0000000000 R15: ffff88800a0d6518\n[   80.898279] FS:  00007fd88b7fe700(0000) GS:ffff88806d300000(0000) knlGS:0000000000000000\n[   80.899436] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   80.900181] CR2: 00007fd88c001d48 CR3: 000000000993e000 CR4: 00000000000006f0\n...\n[   80.935774] ref_tracker: sp%d@000000000bb9df3d has 1/1 users at\n[   80.935774]      ax25_bind+0x424/0x4e0\n[   80.935774]      __sys_bind+0x1d9/0x270\n[   80.935774]      __x64_sys_bind+0x75/0x80\n[   80.935774]      do_syscall_64+0xc4/0x1b0\n[   80.935774]      entry_SYSCALL_64_after_hwframe+0x67/0x6f\n\nChange ax25_dev-\u003edev_tracker to the dev_tracker of ax25_cb\nin order to mitigate the bug."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ax25: soluciona el problema de recuento de netdev. El dev_tracker se agrega a ax25_cb en ax25_bind(). Cuando el dispositivo ax25 se est\u00e1 desconectando, el dev_tracker de ax25_cb debe desasignarse en ax25_kill_by_device() en lugar del dev_tracker de ax25_dev. El registro informado por ref_tracker se muestra a continuaci\u00f3n: [80.884935] ref_tracker: referencia ya publicada. [80.885150] ref_tracker: asignado en: [80.885349] ax25_dev_device_up+0x105/0x540 [80.885730] ax25_device_event+0xa4/0x420 [80.885730] notifier_call_chain+0xc9/0x1e0 [80. 885730] __dev_notify_flags+0x138/0x280 [ 80.885730] dev_change_flags+0xd7/0x180 [ 80.885730 ] dev_ifsioc+0x6a9/0xa30 [ 80.885730] dev_ioctl+0x4d8/0xd90 [ 80.885730] sock_do_ioctl+0x1c2/0x2d0 [ 80.885730] sock_ioctl+0x38b/0x4f0 [ 80.885730] __se_sys_ioctl+0xad/0xf0 [ 80.885730] do_syscall_64+0xc4/0x1b0 [ 80.885730] Entry_SYSCALL_64_after_hwframe +0x67/0x6f [ 80.885730] ref_tracker: liberado en: [ 80.885730] ax25_device_event+0x272/0x420 [ 80.885730] notifier_call_chain+0xc9/0x1e0 [ 80.885730] 370 [80.885730] unregister_netdevice_many_notify+0x3b5/0x1180 [80.885730] unregister_netdev+0xcf /0x120 [ 80.885730] sixpack_close+0x11f/0x1b0 [ 80.885730] tty_ldisc_kill+0xcb/0x190 [ 80.885730] tty_ldisc_hangup+0x338/0x3d0 [ 80.885730] x740 [ 80.885730] tty_release+0x46e/0xd80 [ 80.885730] __fput+0x37f/0x770 [80.885730] __x64_sys_close+0x7b/0xb0 [ 80.885730] do_syscall_64+0xc4/0x1b0 [ 80.885730] Entry_SYSCALL_64_after_hwframe+0x67/0x6f [ 80.893739] ------------[ cortar aqu\u00ed ]--- ---- ----- [80.894030] ADVERTENCIA: CPU: 2 PID: 140 en lib/ref_tracker.c: 255 ref_tracker_free+0x47b/0x6b0 [80.894297] M\u00f3dulos vinculados en: [80.894929] CPU: 2 pid: 140 Comm: ax25_conn_rel 6 no Tainted 6.9.0-rc4-g8cd26fd90c1a #11 [80.895190] Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qem4 [80.895514] RIP:ref_tracker_free +0x47b /0x6b0 [ 80.895808] C\u00f3digo: 83 c5 18 4c 89 eb 48 c1 eb 03 8a 04 13 84 c0 0f 85 df 01 00 00 41 83 7d 00 00 75 4b 4c 89 ff 9 [ 80.896171] 0018:ffff888009edf8c0 EFLAGS: 00000286 [ 80.896339] RAX: 1ffff1100141ac00 RBX: 1ffff1100149463b RCX: dffffc0000000000 [ 80.896502] RDX: 00000000000000001 RSI: 0000000000000246 RDI: ff88800a0d6518 [ 80.896925] RBP: ffff888009edf9b0 R08: ffff88806d3288d3 R09: 1ffff1100da6511a [ 80.897212] R10: dffffc0000000000 R11: 1b R12: ffff88800a4a31d4 [ 80.897859 ] R13: ffff88800a4a31d8 R14: dffffc0000000000 R15: ffff88800a0d6518 [ 80.898279] FS: 00007fd88b7fe700(0000) GS:ffff88806d300000(0000) 000000000000000 [ 80.899436] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.900181] CR2: 00007fd88c001d48 CR3 : 000000000993e000 CR4: 00000000000006f0 ... [ 80.935774] ref_tracker: sp%d@000000000bb9df3d tiene 1/1 usuarios en [ 80.935774] ax25_bind+0x424/0x4e0 [ 80.93577 4] __sys_bind+0x1d9/0x270 [ 80.935774] __x64_sys_bind+0x75/0x80 [ 80.935774 ] do_syscall_64+0xc4/0x1b0 [ 80.935774] Entry_SYSCALL_64_after_hwframe+0x67/0x6f Cambie ax25_dev-\u0026gt;dev_tracker al dev_tracker de ax25_cb para mitigar el error."
    }
  ],
  "id": "CVE-2024-36009",
  "lastModified": "2025-09-23T18:47:09.183",
  "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": "2024-05-20T10:15:14.773",
  "references": [
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      "tags": [
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      "url": "https://git.kernel.org/stable/c/0d14f104027e30720582448706c7d6b43065c851"
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      "url": "https://git.kernel.org/stable/c/467324bcfe1a31ec65d0cf4aa59421d6b7a7d52b"
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List"
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      "url": "http://www.openwall.com/lists/oss-security/2024/05/30/1"
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    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List"
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      "url": "http://www.openwall.com/lists/oss-security/2024/05/30/2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/0d14f104027e30720582448706c7d6b43065c851"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/467324bcfe1a31ec65d0cf4aa59421d6b7a7d52b"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "url": "https://git.kernel.org/stable/c/4fee8fa86a15d7790268eea458b1aec69c695530"
    },
    {
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      "url": "https://git.kernel.org/stable/c/c42b073d9af4a5329b25b17390c63ab3847f30e8"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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