CVE-2024-53148

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-53148
In the Linux kernel, the following vulnerability has been resolved: comedi: Flush partial mappings in error case If some remap_pfn_range() calls succeeded before one failed, we still have buffer pages mapped into the userspace page tables when we drop the buffer reference with comedi_buf_map_put(bm). The userspace mappings are only cleaned up later in the mmap error path. Fix it by explicitly flushing all mappings in our VMA on the error path. See commit 79a61cc3fc04 ("mm: avoid leaving partial pfn mappings around in error case").

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/16c507df509113c037cdc0ba642b9ab3389bd26c Patch
https://git.kernel.org/stable/c/297f14fbb81895f4ccdb0ad25d196786d6461e00 Patch
https://git.kernel.org/stable/c/57f048c2d205b85e34282a9b0b0ae177e84c2f44 Patch
https://git.kernel.org/stable/c/8797b7712de704dc231f9e821d8eb3b9aeb3a032 Patch
https://git.kernel.org/stable/c/9b07fb464eb69a752406e78e62ab3a60bfa7b00d Patch
https://git.kernel.org/stable/c/b9322408d83accc8b96322bc7356593206288c56 Patch
https://git.kernel.org/stable/c/c6963a06ce5c61d3238751ada04ee1569663a828 Patch
https://git.kernel.org/stable/c/ce8f9fb651fac95dd41f69afe54d935420b945bd 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:*:*:*:*:*:*:*:*
History

08 Oct 2025, 14:45

Type Values Removed Values Added
CWE NVD-CWE-noinfo
First Time Linux
Linux linux Kernel
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: comedi: vaciar asignaciones parciales en caso de error. Si algunas llamadas a remap_pfn_range() tuvieron éxito antes de que una fallara, todavía tenemos páginas de búfer asignadas a las tablas de páginas del espacio de usuario cuando eliminamos la referencia de búfer con comedi_buf_map_put (bm). Las asignaciones del espacio de usuario solo se limpian más adelante en la ruta de error mmap. Solucionelo eliminando explícitamente todas las asignaciones en nuestro VMA en la ruta del error. Consulte el commit 79a61cc3fc04 ("mm: evite dejar asignaciones pfn parciales en caso de error").
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/16c507df509113c037cdc0ba642b9ab3389bd26c - () https://git.kernel.org/stable/c/16c507df509113c037cdc0ba642b9ab3389bd26c - Patch
References () https://git.kernel.org/stable/c/297f14fbb81895f4ccdb0ad25d196786d6461e00 - () https://git.kernel.org/stable/c/297f14fbb81895f4ccdb0ad25d196786d6461e00 - Patch
References () https://git.kernel.org/stable/c/57f048c2d205b85e34282a9b0b0ae177e84c2f44 - () https://git.kernel.org/stable/c/57f048c2d205b85e34282a9b0b0ae177e84c2f44 - Patch
References () https://git.kernel.org/stable/c/8797b7712de704dc231f9e821d8eb3b9aeb3a032 - () https://git.kernel.org/stable/c/8797b7712de704dc231f9e821d8eb3b9aeb3a032 - Patch
References () https://git.kernel.org/stable/c/9b07fb464eb69a752406e78e62ab3a60bfa7b00d - () https://git.kernel.org/stable/c/9b07fb464eb69a752406e78e62ab3a60bfa7b00d - Patch
References () https://git.kernel.org/stable/c/b9322408d83accc8b96322bc7356593206288c56 - () https://git.kernel.org/stable/c/b9322408d83accc8b96322bc7356593206288c56 - Patch
References () https://git.kernel.org/stable/c/c6963a06ce5c61d3238751ada04ee1569663a828 - () https://git.kernel.org/stable/c/c6963a06ce5c61d3238751ada04ee1569663a828 - Patch
References () https://git.kernel.org/stable/c/ce8f9fb651fac95dd41f69afe54d935420b945bd - () https://git.kernel.org/stable/c/ce8f9fb651fac95dd41f69afe54d935420b945bd - Patch

24 Dec 2024, 12:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-12-24 12:15

Updated : 2025-10-08 14:45

NVD link : CVE-2024-53148

Mitre link : CVE-2024-53148

CVE.ORG link : CVE-2024-53148

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo