CVE-2024-40969

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  3. CVE-2024-40969

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

I

n the Linux kernel, the following vulnerability has been resolved: f2fs: don't set RO when shutting down f2fs Shutdown does not check the error of thaw_super due to readonly, which causes a deadlock like below. f2fs_ioc_shutdown(F2FS_GOING_DOWN_FULLSYNC) issue_discard_thread - bdev_freeze - freeze_super - f2fs_stop_checkpoint() - f2fs_handle_critical_error - sb_start_write - set RO - waiting - bdev_thaw - thaw_super_locked - return -EINVAL, if sb_rdonly() - f2fs_stop_discard_thread -> wait for kthread_stop(discard_thread);

References
Link Resource
https://git.kernel.org/stable/c/1036d3ea7a32cb7cee00885c73a1f2ba7fbc499a Patch
https://git.kernel.org/stable/c/3bdb7f161697e2d5123b89fe1778ef17a44858e7 Patch
https://git.kernel.org/stable/c/f47ed3b284b38f235355e281f57dfa8fffcc6563 Patch
https://git.kernel.org/stable/c/1036d3ea7a32cb7cee00885c73a1f2ba7fbc499a Patch
https://git.kernel.org/stable/c/3bdb7f161697e2d5123b89fe1778ef17a44858e7 Patch
https://git.kernel.org/stable/c/f47ed3b284b38f235355e281f57dfa8fffcc6563 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

21 Nov 2024, 09:31

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/1036d3ea7a32cb7cee00885c73a1f2ba7fbc499a - Patch () https://git.kernel.org/stable/c/1036d3ea7a32cb7cee00885c73a1f2ba7fbc499a - Patch
References () https://git.kernel.org/stable/c/3bdb7f161697e2d5123b89fe1778ef17a44858e7 - Patch () https://git.kernel.org/stable/c/3bdb7f161697e2d5123b89fe1778ef17a44858e7 - Patch
References () https://git.kernel.org/stable/c/f47ed3b284b38f235355e281f57dfa8fffcc6563 - Patch () https://git.kernel.org/stable/c/f47ed3b284b38f235355e281f57dfa8fffcc6563 - Patch

09 Sep 2024, 17:59

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux
Linux linux Kernel
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: f2fs: no configure RO al apagar f2fs El apagado no verifica el error de thaw_super debido a solo lectura, lo que causa un punto muerto como el que se muestra a continuación. f2fs_ioc_shutdown(F2FS_GOING_DOWN_FULLSYNC) issues_discard_thread - bdev_freeze - frozen_super - f2fs_stop_checkpoint() - f2fs_handle_critical_error - sb_start_write - establecer RO - esperando - bdev_thaw - thaw_super_locked - devolver -EINVAL, si sb_rdonly() - card_thread -> esperar kthread_stop(discard_thread);
References () https://git.kernel.org/stable/c/1036d3ea7a32cb7cee00885c73a1f2ba7fbc499a - () https://git.kernel.org/stable/c/1036d3ea7a32cb7cee00885c73a1f2ba7fbc499a - Patch
References () https://git.kernel.org/stable/c/3bdb7f161697e2d5123b89fe1778ef17a44858e7 - () https://git.kernel.org/stable/c/3bdb7f161697e2d5123b89fe1778ef17a44858e7 - Patch
References () https://git.kernel.org/stable/c/f47ed3b284b38f235355e281f57dfa8fffcc6563 - () https://git.kernel.org/stable/c/f47ed3b284b38f235355e281f57dfa8fffcc6563 - Patch
CWE CWE-667

12 Jul 2024, 13:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-07-12 13:15

Updated : 2024-11-21 09:31

NVD link : CVE-2024-40969

Mitre link : CVE-2024-40969

CVE.ORG link : CVE-2024-40969

JSON object : View

Products Affected

linux

CWE
CWE-667

Improper Locking