CVE-2024-41078

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-41078
In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix quota root leak after quota disable failure If during the quota disable we fail when cleaning the quota tree or when deleting the root from the root tree, we jump to the 'out' label without ever dropping the reference on the quota root, resulting in a leak of the root since fs_info->quota_root is no longer pointing to the root (we have set it to NULL just before those steps). Fix this by always doing a btrfs_put_root() call under the 'out' label. This is a problem that exists since qgroups were first added in 2012 by commit bed92eae26cc ("Btrfs: qgroup implementation and prototypes"), but back then we missed a kfree on the quota root and free_extent_buffer() calls on its root and commit root nodes, since back then roots were not yet reference counted.

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/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51 Patch
https://git.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ff Patch
https://git.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cf Patch
https://git.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757 Patch
https://git.kernel.org/stable/c/a7e4c6a3031c74078dba7fa36239d0f4fe476c53 Patch
https://git.kernel.org/stable/c/f88aeff5a173e8ba3133314eb4b964236ef3589d Patch
https://git.kernel.org/stable/c/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51 Patch
https://git.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ff Patch
https://git.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cf Patch
https://git.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757 Patch
https://git.kernel.org/stable/c/a7e4c6a3031c74078dba7fa36239d0f4fe476c53 Patch
https://git.kernel.org/stable/c/f88aeff5a173e8ba3133314eb4b964236ef3589d 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:6.10:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.10:rc5:*:*:*:*:*:*
History

26 Sep 2025, 14:42

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51 - () https://git.kernel.org/stable/c/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51 - Patch
References () https://git.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ff - () https://git.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ff - Patch
References () https://git.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cf - () https://git.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cf - Patch
References () https://git.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757 - () https://git.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757 - Patch
References () https://git.kernel.org/stable/c/a7e4c6a3031c74078dba7fa36239d0f4fe476c53 - () https://git.kernel.org/stable/c/a7e4c6a3031c74078dba7fa36239d0f4fe476c53 - Patch
References () https://git.kernel.org/stable/c/f88aeff5a173e8ba3133314eb4b964236ef3589d - () https://git.kernel.org/stable/c/f88aeff5a173e8ba3133314eb4b964236ef3589d - Patch
CPE cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.10:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux linux Kernel
Linux
CWE CWE-401

21 Nov 2024, 09:32

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux se ha solucionado la siguiente vulnerabilidad: btrfs:qgroup: arregla fuga de cuota raíz tras fallo de desactivación de cuota Si durante la desactivación de cuota fallamos al limpiar el árbol de cuotas o al borrar el root del árbol raíz, saltamos al etiqueta 'out' sin eliminar la referencia en la raíz de la cuota, lo que resulta en una pérdida de la raíz ya que fs_info->quota_root ya no apunta a la raíz (la hemos configurado en NULL justo antes de esos pasos). Solucione este problema realizando siempre una llamada btrfs_put_root() bajo la etiqueta 'out'. Este es un problema que existe desde que qgroups se agregaron por primera vez en 2012 mediante el compromiso bed92eae26cc ("Btrfs: implementación y prototipos de qgroup"), pero en aquel entonces nos perdimos un kfree en la cuota raíz y llamadas free_extent_buffer() en su raíz y en los nodos raíz de confirmación. , ya que en aquel entonces las raíces aún no se contaban como referencia.
References () https://git.kernel.org/stable/c/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51 - () https://git.kernel.org/stable/c/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51 -
References () https://git.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ff - () https://git.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ff -
References () https://git.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cf - () https://git.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cf -
References () https://git.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757 - () https://git.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757 -
References () https://git.kernel.org/stable/c/a7e4c6a3031c74078dba7fa36239d0f4fe476c53 - () https://git.kernel.org/stable/c/a7e4c6a3031c74078dba7fa36239d0f4fe476c53 -
References () https://git.kernel.org/stable/c/f88aeff5a173e8ba3133314eb4b964236ef3589d - () https://git.kernel.org/stable/c/f88aeff5a173e8ba3133314eb4b964236ef3589d -

29 Jul 2024, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-07-29 15:15

Updated : 2025-09-26 14:42

NVD link : CVE-2024-41078

Mitre link : CVE-2024-41078

CVE.ORG link : CVE-2024-41078

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime