CVE-2025-38652

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-38652
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid out-of-boundary access in devs.path - touch /mnt/f2fs/012345678901234567890123456789012345678901234567890123 - truncate -s $((1024*1024*1024)) \ /mnt/f2fs/012345678901234567890123456789012345678901234567890123 - touch /mnt/f2fs/file - truncate -s $((1024*1024*1024)) /mnt/f2fs/file - mkfs.f2fs /mnt/f2fs/012345678901234567890123456789012345678901234567890123 \ -c /mnt/f2fs/file - mount /mnt/f2fs/012345678901234567890123456789012345678901234567890123 \ /mnt/f2fs/loop [16937.192225] F2FS-fs (loop0): Mount Device [ 0]: /mnt/f2fs/012345678901234567890123456789012345678901234567890123\xff\x01, 511, 0 - 3ffff [16937.192268] F2FS-fs (loop0): Failed to find devices If device path length equals to MAX_PATH_LEN, sbi->devs.path[] may not end up w/ null character due to path array is fully filled, So accidently, fields locate after path[] may be treated as part of device path, result in parsing wrong device path. struct f2fs_dev_info { ... char path[MAX_PATH_LEN]; ... }; Let's add one byte space for sbi->devs.path[] to store null character of device path string.

7.1 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/1b1efa5f0e878745e94a98022e8edc675a87d78e Patch
https://git.kernel.org/stable/c/1cf1ff15f262e8baf12201b270b6a79f9d119b2d Patch
https://git.kernel.org/stable/c/345fc8d1838f3f8be7c8ed08d86a13dedef67136 Patch
https://git.kernel.org/stable/c/3466721f06edff834f99d9f49f23eabc6b2cb78e Patch
https://git.kernel.org/stable/c/5661998536af52848cc4d52a377e90368196edea Patch
https://git.kernel.org/stable/c/666b7cf6ac9aa074b8319a2b68cba7f2c30023f0 Patch
https://git.kernel.org/stable/c/70849d33130a2cf1d6010069ed200669c8651fbd Patch
https://git.kernel.org/stable/c/755427093e4294ac111c3f9e40d53f681a0fbdaa Patch
https://git.kernel.org/stable/c/dc0172c74bd9edaee7bea2ebb35f3dbd37a8ae80 Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html Third Party Advisory
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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
History

07 Jan 2026, 17:36

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.1
CPE cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/1b1efa5f0e878745e94a98022e8edc675a87d78e - () https://git.kernel.org/stable/c/1b1efa5f0e878745e94a98022e8edc675a87d78e - Patch
References () https://git.kernel.org/stable/c/1cf1ff15f262e8baf12201b270b6a79f9d119b2d - () https://git.kernel.org/stable/c/1cf1ff15f262e8baf12201b270b6a79f9d119b2d - Patch
References () https://git.kernel.org/stable/c/345fc8d1838f3f8be7c8ed08d86a13dedef67136 - () https://git.kernel.org/stable/c/345fc8d1838f3f8be7c8ed08d86a13dedef67136 - Patch
References () https://git.kernel.org/stable/c/3466721f06edff834f99d9f49f23eabc6b2cb78e - () https://git.kernel.org/stable/c/3466721f06edff834f99d9f49f23eabc6b2cb78e - Patch
References () https://git.kernel.org/stable/c/5661998536af52848cc4d52a377e90368196edea - () https://git.kernel.org/stable/c/5661998536af52848cc4d52a377e90368196edea - Patch
References () https://git.kernel.org/stable/c/666b7cf6ac9aa074b8319a2b68cba7f2c30023f0 - () https://git.kernel.org/stable/c/666b7cf6ac9aa074b8319a2b68cba7f2c30023f0 - Patch
References () https://git.kernel.org/stable/c/70849d33130a2cf1d6010069ed200669c8651fbd - () https://git.kernel.org/stable/c/70849d33130a2cf1d6010069ed200669c8651fbd - Patch
References () https://git.kernel.org/stable/c/755427093e4294ac111c3f9e40d53f681a0fbdaa - () https://git.kernel.org/stable/c/755427093e4294ac111c3f9e40d53f681a0fbdaa - Patch
References () https://git.kernel.org/stable/c/dc0172c74bd9edaee7bea2ebb35f3dbd37a8ae80 - () https://git.kernel.org/stable/c/dc0172c74bd9edaee7bea2ebb35f3dbd37a8ae80 - Patch
References () https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html - () https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html - Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html - () https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html - Third Party Advisory
CWE CWE-125
First Time Linux
Debian
Debian debian Linux
Linux linux Kernel

03 Nov 2025, 18:16

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html -
  • () https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html -

28 Aug 2025, 15:15

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: f2fs: corrección para evitar el acceso fuera de los límites en devs.path - touch /mnt/f2fs/0123456789012345678901234567890123456789012345678901234567890123 - truncate -s $((1024*1024*1024)) \ /mnt/f2fs/012345678901234567890123456789012345678901234567890123 - touch /mnt/f2fs/file - truncate -s $((1024*1024*1024)) /mnt/f2fs/file - mkfs.f2fs /mnt/f2fs/0123456789012345678901234567890123456789012345678901234567890123 \ -c /mnt/f2fs/file - mount /mnt/f2fs/012345678901234567890123456789012345678901234567890123 \ /mnt/f2fs/loop [16937.192225] F2FS-fs (loop0): Montar dispositivo [ 0]: /mnt/f2fs/012345678901234567890123456789012345678901234567890123\xff\x01, 511, 0 - 3ffff [16937.192268] F2FS-fs (loop0): Error al encontrar dispositivos Si la longitud de la ruta del dispositivo es igual a MAX_PATH_LEN, sbi->devs.path[] puede no terminar con un carácter nulo debido a que la matriz de ruta está completamente llena, por lo que accidentalmente, los campos ubicados después de path[] pueden tratarse como parte de la ruta del dispositivo, lo que da como resultado el análisis de una ruta de dispositivo incorrecta. Agreguemos un espacio de byte para que sbi->devs.path[] almacene el carácter nulo de la cadena de ruta del dispositivo.
References
  • () https://git.kernel.org/stable/c/1cf1ff15f262e8baf12201b270b6a79f9d119b2d -
  • () https://git.kernel.org/stable/c/666b7cf6ac9aa074b8319a2b68cba7f2c30023f0 -
  • () https://git.kernel.org/stable/c/dc0172c74bd9edaee7bea2ebb35f3dbd37a8ae80 -

22 Aug 2025, 16:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-08-22 16:15

Updated : 2026-01-07 17:36

NVD link : CVE-2025-38652

Mitre link : CVE-2025-38652

CVE.ORG link : CVE-2025-38652

JSON object : View

Products Affected

debian

  • debian_linux

linux

  • linux_kernel
CWE
CWE-125

Out-of-bounds Read