CVE-2025-21783

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-21783
In the Linux kernel, the following vulnerability has been resolved: gpiolib: Fix crash on error in gpiochip_get_ngpios() The gpiochip_get_ngpios() uses chip_*() macros to print messages. However these macros rely on gpiodev to be initialised and set, which is not the case when called via bgpio_init(). In such a case the printing messages will crash on NULL pointer dereference. Replace chip_*() macros by the respective dev_*() ones to avoid such crash.

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/189fb76215e479c10731baabb50f1a352d2078f5 Mailing List Patch
https://git.kernel.org/stable/c/4d9b2b62e1136d10f661ec4c0c268140b6f74f4f Mailing List Patch
https://git.kernel.org/stable/c/7b4aebeecbbd5b5fe73e35fad3f62ed21aa7ef44 Mailing List Patch
https://git.kernel.org/stable/c/a7052afa9eae2239e25943baa8817a6a56e8aa68 Mailing List 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:6.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
History

01 Oct 2025, 20:18

Type Values Removed Values Added
First Time Linux
Linux linux Kernel
CWE CWE-476
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: gpiolib: Se corrige el fallo en caso de error en gpiochip_get_ngpios(). Gpiochip_get_ngpios() utiliza macros chip_*() para imprimir mensajes. Sin embargo, estas macros dependen de que gpiodev se inicialice y configure, lo que no sucede cuando se llama a través de bgpio_init(). En tal caso, la impresión de mensajes se bloqueará en caso de desreferencia de puntero NULL. Reemplace las macros chip_*() por las respectivas dev_*() para evitar dicho bloqueo.
References () https://git.kernel.org/stable/c/189fb76215e479c10731baabb50f1a352d2078f5 - () https://git.kernel.org/stable/c/189fb76215e479c10731baabb50f1a352d2078f5 - Mailing List, Patch
References () https://git.kernel.org/stable/c/4d9b2b62e1136d10f661ec4c0c268140b6f74f4f - () https://git.kernel.org/stable/c/4d9b2b62e1136d10f661ec4c0c268140b6f74f4f - Mailing List, Patch
References () https://git.kernel.org/stable/c/7b4aebeecbbd5b5fe73e35fad3f62ed21aa7ef44 - () https://git.kernel.org/stable/c/7b4aebeecbbd5b5fe73e35fad3f62ed21aa7ef44 - Mailing List, Patch
References () https://git.kernel.org/stable/c/a7052afa9eae2239e25943baa8817a6a56e8aa68 - () https://git.kernel.org/stable/c/a7052afa9eae2239e25943baa8817a6a56e8aa68 - Mailing List, Patch

27 Feb 2025, 03:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-02-27 03:15

Updated : 2025-10-01 20:18

NVD link : CVE-2025-21783

Mitre link : CVE-2025-21783

CVE.ORG link : CVE-2025-21783

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference