CVE-2024-36009

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-36009
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.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/0d14f104027e30720582448706c7d6b43065c851 Patch
https://git.kernel.org/stable/c/467324bcfe1a31ec65d0cf4aa59421d6b7a7d52b Patch
https://git.kernel.org/stable/c/4fee8fa86a15d7790268eea458b1aec69c695530 Patch
https://git.kernel.org/stable/c/c42b073d9af4a5329b25b17390c63ab3847f30e8 Patch
http://www.openwall.com/lists/oss-security/2024/05/30/1 Mailing List
http://www.openwall.com/lists/oss-security/2024/05/30/2 Mailing List
https://git.kernel.org/stable/c/0d14f104027e30720582448706c7d6b43065c851 Patch
https://git.kernel.org/stable/c/467324bcfe1a31ec65d0cf4aa59421d6b7a7d52b Patch
https://git.kernel.org/stable/c/4fee8fa86a15d7790268eea458b1aec69c695530 Patch
https://git.kernel.org/stable/c/c42b073d9af4a5329b25b17390c63ab3847f30e8 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc8:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:*
History

23 Sep 2025, 18:47

Type Values Removed Values Added
First Time Linux
Linux linux Kernel
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/0d14f104027e30720582448706c7d6b43065c851 - () https://git.kernel.org/stable/c/0d14f104027e30720582448706c7d6b43065c851 - Patch
References () https://git.kernel.org/stable/c/467324bcfe1a31ec65d0cf4aa59421d6b7a7d52b - () https://git.kernel.org/stable/c/467324bcfe1a31ec65d0cf4aa59421d6b7a7d52b - Patch
References () https://git.kernel.org/stable/c/4fee8fa86a15d7790268eea458b1aec69c695530 - () https://git.kernel.org/stable/c/4fee8fa86a15d7790268eea458b1aec69c695530 - Patch
References () https://git.kernel.org/stable/c/c42b073d9af4a5329b25b17390c63ab3847f30e8 - () https://git.kernel.org/stable/c/c42b073d9af4a5329b25b17390c63ab3847f30e8 - Patch
References () http://www.openwall.com/lists/oss-security/2024/05/30/1 - () http://www.openwall.com/lists/oss-security/2024/05/30/1 - Mailing List
References () http://www.openwall.com/lists/oss-security/2024/05/30/2 - () http://www.openwall.com/lists/oss-security/2024/05/30/2 - Mailing List
CWE NVD-CWE-Other
CPE cpe:2.3:o:linux:linux_kernel:5.17:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc8:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*

21 Nov 2024, 09:21

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2024/05/30/1 -
  • () http://www.openwall.com/lists/oss-security/2024/05/30/2 -
References () https://git.kernel.org/stable/c/0d14f104027e30720582448706c7d6b43065c851 - () https://git.kernel.org/stable/c/0d14f104027e30720582448706c7d6b43065c851 -
References () https://git.kernel.org/stable/c/467324bcfe1a31ec65d0cf4aa59421d6b7a7d52b - () https://git.kernel.org/stable/c/467324bcfe1a31ec65d0cf4aa59421d6b7a7d52b -
References () https://git.kernel.org/stable/c/4fee8fa86a15d7790268eea458b1aec69c695530 - () https://git.kernel.org/stable/c/4fee8fa86a15d7790268eea458b1aec69c695530 -
References () https://git.kernel.org/stable/c/c42b073d9af4a5329b25b17390c63ab3847f30e8 - () https://git.kernel.org/stable/c/c42b073d9af4a5329b25b17390c63ab3847f30e8 -

05 Nov 2024, 10:17

Type Values Removed Values Added
References
  • {'url': 'http://www.openwall.com/lists/oss-security/2024/05/30/1', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'http://www.openwall.com/lists/oss-security/2024/05/30/2', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}

10 Jun 2024, 17:16

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2024/05/30/1 -
  • () http://www.openwall.com/lists/oss-security/2024/05/30/2 -
Summary
  • (es) En el kernel de Linux, se resolvió 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 está 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 continuación: [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 aquí ]--- ---- ----- [80.894030] ADVERTENCIA: CPU: 2 PID: 140 en lib/ref_tracker.c: 255 ref_tracker_free+0x47b/0x6b0 [80.894297] Módulos 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 estándar QEMU (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qem4 [80.895514] RIP:ref_tracker_free +0x47b /0x6b0 [ 80.895808] Código: 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->dev_tracker al dev_tracker de ax25_cb para mitigar el error.

20 May 2024, 13:00

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-20 10:15

Updated : 2025-09-23 18:47

NVD link : CVE-2024-36009

Mitre link : CVE-2024-36009

CVE.ORG link : CVE-2024-36009

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-Other