CVE-2024-35855

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-35855
In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_acl_tcam: Fix possible use-after-free during activity update The rule activity update delayed work periodically traverses the list of configured rules and queries their activity from the device. As part of this task it accesses the entry pointed by 'ventry->entry', but this entry can be changed concurrently by the rehash delayed work, leading to a use-after-free [1]. Fix by closing the race and perform the activity query under the 'vregion->lock' mutex. [1] BUG: KASAN: slab-use-after-free in mlxsw_sp_acl_tcam_flower_rule_activity_get+0x121/0x140 Read of size 8 at addr ffff8881054ed808 by task kworker/0:18/181 CPU: 0 PID: 181 Comm: kworker/0:18 Not tainted 6.9.0-rc2-custom-00781-gd5ab772d32f7 #2 Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019 Workqueue: mlxsw_core mlxsw_sp_acl_rule_activity_update_work Call Trace: <TASK> dump_stack_lvl+0xc6/0x120 print_report+0xce/0x670 kasan_report+0xd7/0x110 mlxsw_sp_acl_tcam_flower_rule_activity_get+0x121/0x140 mlxsw_sp_acl_rule_activity_update_work+0x219/0x400 process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 kthread+0x2c9/0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x30 </TASK> Allocated by task 1039: kasan_save_stack+0x33/0x60 kasan_save_track+0x14/0x30 __kasan_kmalloc+0x8f/0xa0 __kmalloc+0x19c/0x360 mlxsw_sp_acl_tcam_entry_create+0x7b/0x1f0 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x30d/0xb50 mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300 process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 kthread+0x2c9/0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x30 Freed by task 1039: kasan_save_stack+0x33/0x60 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x60 poison_slab_object+0x102/0x170 __kasan_slab_free+0x14/0x30 kfree+0xc1/0x290 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x3d7/0xb50 mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300 process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 kthread+0x2c9/0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x30

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/1b73f6e4ea770410a937a8db98f77e52594d23a0 Patch
https://git.kernel.org/stable/c/79b5b4b18bc85b19d3a518483f9abbbe6d7b3ba4 Patch
https://git.kernel.org/stable/c/b183b915beef818a25e3154d719ca015a1ae0770 Patch
https://git.kernel.org/stable/c/b996e8699da810e4c915841d6aaef761007f933a Patch
https://git.kernel.org/stable/c/c17976b42d546ee118ca300db559630ee96fb758 Patch
https://git.kernel.org/stable/c/e24d2487424779c02760ff50cd9021b8676e19ef Patch
https://git.kernel.org/stable/c/feabdac2057e863d0e140a2adf3d232eb4882db4 Patch
https://git.kernel.org/stable/c/1b73f6e4ea770410a937a8db98f77e52594d23a0 Patch
https://git.kernel.org/stable/c/79b5b4b18bc85b19d3a518483f9abbbe6d7b3ba4 Patch
https://git.kernel.org/stable/c/b183b915beef818a25e3154d719ca015a1ae0770 Patch
https://git.kernel.org/stable/c/b996e8699da810e4c915841d6aaef761007f933a Patch
https://git.kernel.org/stable/c/c17976b42d546ee118ca300db559630ee96fb758 Patch
https://git.kernel.org/stable/c/e24d2487424779c02760ff50cd9021b8676e19ef Patch
https://git.kernel.org/stable/c/feabdac2057e863d0e140a2adf3d232eb4882db4 Patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html 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: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

30 Dec 2024, 18:11

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/1b73f6e4ea770410a937a8db98f77e52594d23a0 - () https://git.kernel.org/stable/c/1b73f6e4ea770410a937a8db98f77e52594d23a0 - Patch
References () https://git.kernel.org/stable/c/79b5b4b18bc85b19d3a518483f9abbbe6d7b3ba4 - () https://git.kernel.org/stable/c/79b5b4b18bc85b19d3a518483f9abbbe6d7b3ba4 - Patch
References () https://git.kernel.org/stable/c/b183b915beef818a25e3154d719ca015a1ae0770 - () https://git.kernel.org/stable/c/b183b915beef818a25e3154d719ca015a1ae0770 - Patch
References () https://git.kernel.org/stable/c/b996e8699da810e4c915841d6aaef761007f933a - () https://git.kernel.org/stable/c/b996e8699da810e4c915841d6aaef761007f933a - Patch
References () https://git.kernel.org/stable/c/c17976b42d546ee118ca300db559630ee96fb758 - () https://git.kernel.org/stable/c/c17976b42d546ee118ca300db559630ee96fb758 - Patch
References () https://git.kernel.org/stable/c/e24d2487424779c02760ff50cd9021b8676e19ef - () https://git.kernel.org/stable/c/e24d2487424779c02760ff50cd9021b8676e19ef - Patch
References () https://git.kernel.org/stable/c/feabdac2057e863d0e140a2adf3d232eb4882db4 - () https://git.kernel.org/stable/c/feabdac2057e863d0e140a2adf3d232eb4882db4 - Patch
References () https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html - () https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html - Patch
CPE 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:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-416
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8

21 Nov 2024, 09:21

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html -
References () https://git.kernel.org/stable/c/1b73f6e4ea770410a937a8db98f77e52594d23a0 - () https://git.kernel.org/stable/c/1b73f6e4ea770410a937a8db98f77e52594d23a0 -
References () https://git.kernel.org/stable/c/79b5b4b18bc85b19d3a518483f9abbbe6d7b3ba4 - () https://git.kernel.org/stable/c/79b5b4b18bc85b19d3a518483f9abbbe6d7b3ba4 -
References () https://git.kernel.org/stable/c/b183b915beef818a25e3154d719ca015a1ae0770 - () https://git.kernel.org/stable/c/b183b915beef818a25e3154d719ca015a1ae0770 -
References () https://git.kernel.org/stable/c/b996e8699da810e4c915841d6aaef761007f933a - () https://git.kernel.org/stable/c/b996e8699da810e4c915841d6aaef761007f933a -
References () https://git.kernel.org/stable/c/c17976b42d546ee118ca300db559630ee96fb758 - () https://git.kernel.org/stable/c/c17976b42d546ee118ca300db559630ee96fb758 -
References () https://git.kernel.org/stable/c/e24d2487424779c02760ff50cd9021b8676e19ef - () https://git.kernel.org/stable/c/e24d2487424779c02760ff50cd9021b8676e19ef -
References () https://git.kernel.org/stable/c/feabdac2057e863d0e140a2adf3d232eb4882db4 - () https://git.kernel.org/stable/c/feabdac2057e863d0e140a2adf3d232eb4882db4 -

05 Nov 2024, 10:16

Type Values Removed Values Added
References
  • {'url': 'https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}

25 Jun 2024, 22:15

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html -
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mlxsw: spectrum_acl_tcam: corrige posible use after free durante la actualización de la actividad. El trabajo retrasado de la actualización de la actividad de la regla recorre periódicamente la lista de reglas configuradas y consulta su actividad desde el dispositivo. Como parte de esta tarea, accede a la entrada señalada por 'ventry-&gt;entry', pero esta entrada puede cambiarse simultáneamente mediante el trabajo retrasado del rehash, lo que lleva a un use after free [1]. Para solucionarlo, cierre la ejecución y realice la consulta de actividad en el mutex 'vregion-&gt;lock'. [1] ERROR: KASAN: slab-use-after-free en mlxsw_sp_acl_tcam_flower_rule_activity_get+0x121/0x140 Lectura del tamaño 8 en la dirección ffff8881054ed808 por tarea kworker/0:18/181 CPU: 0 PID: 181 Comm: kworker/0:18 Not tainted 6.9.0-rc2-custom-00781-gd5ab772d32f7 #2 Nombre del hardware: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 06/01/2019 Cola de trabajo: mlxsw_core mlxsw_sp_acl_rule_activity_update_work Seguimiento de llamadas: dump_stack_lvl+0xc 6/0x120 print_report+0xce /0x670 kasan_report+0xd7/0x110 mlxsw_sp_acl_tcam_flower_rule_activity_get+0x121/0x140 mlxsw_sp_acl_rule_activity_update_work+0x219/0x400 Process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 0x2c9/0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x30 Asignado por tarea 1039 : kasan_save_stack+0x33/0x60 kasan_save_track+0x14/0x30 __kasan_kmalloc+0x8f/0xa0 __kmalloc+0x19c/0x360 mlxsw_sp_acl_tcam_entry_create+0x7b/0x1f0 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x 30d/0xb50 mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300 process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 kthread+0x2c9/ 0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x30 Liberado por la tarea 1039: kasan_save_stack+0x33/0x60 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x60 170 __kasan_slab_free+0x14/0x30 kfree+0xc1/0x290 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x3d7/ 0xb50 mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300 process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 kthread+0x2c9/0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x 30

17 May 2024, 18:35

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-17 15:15

Updated : 2024-12-30 18:11

NVD link : CVE-2024-35855

Mitre link : CVE-2024-35855

CVE.ORG link : CVE-2024-35855

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free