CVE-2024-35974

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-35974
In the Linux kernel, the following vulnerability has been resolved: block: fix q->blkg_list corruption during disk rebind Multiple gendisk instances can allocated/added for single request queue in case of disk rebind. blkg may still stay in q->blkg_list when calling blkcg_init_disk() for rebind, then q->blkg_list becomes corrupted. Fix the list corruption issue by: - add blkg_init_queue() to initialize q->blkg_list & q->blkcg_mutex only - move calling blkg_init_queue() into blk_alloc_queue() The list corruption should be started since commit f1c006f1c685 ("blk-cgroup: synchronize pd_free_fn() from blkg_free_workfn() and blkcg_deactivate_policy()") which delays removing blkg from q->blkg_list into blkg_free_workfn().

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/740ffad95ca8033bd6e080ed337655b13b4d38ac Patch
https://git.kernel.org/stable/c/858c489d81d659af17a4d11cfaad2afb42e47a76 Patch
https://git.kernel.org/stable/c/8b8ace080319a866f5dfe9da8e665ae51d971c54 Patch
https://git.kernel.org/stable/c/740ffad95ca8033bd6e080ed337655b13b4d38ac Patch
https://git.kernel.org/stable/c/858c489d81d659af17a4d11cfaad2afb42e47a76 Patch
https://git.kernel.org/stable/c/8b8ace080319a866f5dfe9da8e665ae51d971c54 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:6.9:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*
History

24 Sep 2025, 18:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*
CWE NVD-CWE-noinfo
First Time Linux linux Kernel
Linux
References () https://git.kernel.org/stable/c/740ffad95ca8033bd6e080ed337655b13b4d38ac - () https://git.kernel.org/stable/c/740ffad95ca8033bd6e080ed337655b13b4d38ac - Patch
References () https://git.kernel.org/stable/c/858c489d81d659af17a4d11cfaad2afb42e47a76 - () https://git.kernel.org/stable/c/858c489d81d659af17a4d11cfaad2afb42e47a76 - Patch
References () https://git.kernel.org/stable/c/8b8ace080319a866f5dfe9da8e665ae51d971c54 - () https://git.kernel.org/stable/c/8b8ace080319a866f5dfe9da8e665ae51d971c54 - Patch

21 Nov 2024, 09:21

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/740ffad95ca8033bd6e080ed337655b13b4d38ac - () https://git.kernel.org/stable/c/740ffad95ca8033bd6e080ed337655b13b4d38ac -
References () https://git.kernel.org/stable/c/858c489d81d659af17a4d11cfaad2afb42e47a76 - () https://git.kernel.org/stable/c/858c489d81d659af17a4d11cfaad2afb42e47a76 -
References () https://git.kernel.org/stable/c/8b8ace080319a866f5dfe9da8e665ae51d971c54 - () https://git.kernel.org/stable/c/8b8ace080319a866f5dfe9da8e665ae51d971c54 -
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: bloque: corrige la corrupción de q->blkg_list durante la revinculación del disco. Se pueden asignar/agregar múltiples instancias de gendisk para una única cola de solicitudes en caso de volver a vincular el disco. Es posible que blkg aún permanezca en q->blkg_list cuando se llama a blkcg_init_disk() para volver a vincular, entonces q->blkg_list se corrompe. Solucione el problema de corrupción de la lista: - agregue blkg_init_queue() para inicializar q->blkg_list & q->blkcg_mutex solamente - mueva la llamada a blkg_init_queue() a blk_alloc_queue() La corrupción de la lista debe iniciarse desde la confirmación f1c006f1c685 ("blk-cgroup: sincronizar pd_free_fn() de blkg_free_workfn() y blkcg_deactivate_policy()") que retrasa la eliminación de blkg de q->blkg_list en blkg_free_workfn().

20 May 2024, 10:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-20 10:15

Updated : 2025-09-24 18:16

NVD link : CVE-2024-35974

Mitre link : CVE-2024-35974

CVE.ORG link : CVE-2024-35974

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo