IM
IronMonkey Threat Research

CVE-2024-36006 MEDIUM

Published: 2024-05-20 | Last Modified: 2026-05-12 | Status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_acl_tcam: Fix incorrect list API usage Both the function that migrates all the chunks within a region and the function that migrates all the entries within a chunk call list_first_entry() on the respective lists without checking that the lists are not empty. This is incorrect usage of the API, which leads to the following warning [1]. Fix by returning if the lists are empty as there is nothing to migrate in this case. [1] WARNING: CPU: 0 PID: 6437 at drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c:1266 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x1f1/0> Modules linked in: CPU: 0 PID: 6437 Comm: kworker/0:37 Not tainted 6.9.0-rc3-custom-00883-g94a65f079ef6 #39 Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019 Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work RIP: 0010:mlxsw_sp_acl_tcam_vchunk_migrate_all+0x1f1/0x2c0 [...] Call Trace: <TASK> mlxsw_sp_acl_tcam_vregion_rehash_work+0x6c/0x4a0 process_one_work+0x151/0x370 worker_thread+0x2cb/0x3e0 kthread+0xd0/0x100 ret_from_fork+0x34/0x50 ret_from_fork_asm+0x1a/0x30 </TASK>

Additional Descriptions (1)

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mlxsw: espectro_acl_tcam: corrige el uso incorrecto de la API de lista. Tanto la función que migra todos los fragmentos dentro de una región como la función que migra todas las entradas dentro de un fragmento llaman a list_first_entry() en el respectivo listas sin verificar que las listas no estén vacías. Este es un uso incorrecto de la API, lo que genera la siguiente advertencia [1]. Para solucionarlo, regrese si las listas están vacías, ya que en este caso no hay nada que migrar. [1] ADVERTENCIA: CPU: 0 PID: 6437 en drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c:1266 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x1f1/0&gt; Módulos vinculados en: CPU: 0 PID: 6437 Comm: kworker/0:37 No contaminado 6.9.0-rc3-custom-00883-g94a65f079ef6 #39 Nombre del hardware: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 06/01/2019 Cola de trabajo: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work RIP 0010:mlxsw_sp _acl_tcam_vchunk_migrate_all+0x1f1/0x2c0 [... ] Seguimiento de llamadas: mlxsw_sp_acl_tcam_vregion_rehash_work+0x6c/0x4a0 Process_one_work+0x151/0x370 Workers_thread+0x2cb/0x3e0 kthread+0xd0/0x100 ret_from_fork+0x34/0x50 ret_from_fork_asm+0x1a/0x3 0

CVSS Metrics

Base Score: 5.5 (MEDIUM)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactNONE
Integrity ImpactNONE
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 1.8

Impact Score: 3.6

Weaknesses

Source Type Description
[email protected] Primary
en NVD-CWE-noinfo

Affected Products

Vendor Product Version Update Type
linux linux_kernel * <built-in method update of dict object at 0x7fd36b5e3a80> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd368d37d80> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd34843cf80> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd34843c8c0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36a7cabc0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36a7c8040> Operating System
linux linux_kernel 6.9 <built-in method update of dict object at 0x7fd34843ff80> Operating System
linux linux_kernel 6.9 <built-in method update of dict object at 0x7fd368d34ec0> Operating System
linux linux_kernel 6.9 <built-in method update of dict object at 0x7fd36ada08c0> Operating System
linux linux_kernel 6.9 <built-in method update of dict object at 0x7fd368d36fc0> Operating System
linux linux_kernel 6.9 <built-in method update of dict object at 0x7fd341c953c0> Operating System
debian debian_linux 10.0 <built-in method update of dict object at 0x7fd341c97e00> Operating System

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

References