CVE-2025-21783
MEDIUMLinux Kernel 6.6-6.6.78, 6.7-6.12.15, 6.13-6.13.3 - Null Pointer Dereference in gpiochip_get_ngpios()
Title source: llmDescription
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.
References (4)
Core 4
Core References
Mailing List, Patch
https://git.kernel.org/stable/c/4d9b2b62e1136d10f661ec4c0c268140b6f74f4f
Mailing List, Patch
https://git.kernel.org/stable/c/a7052afa9eae2239e25943baa8817a6a56e8aa68
Mailing List, Patch
https://git.kernel.org/stable/c/189fb76215e479c10731baabb50f1a352d2078f5
Mailing List, Patch
https://git.kernel.org/stable/c/7b4aebeecbbd5b5fe73e35fad3f62ed21aa7ef44
Scores
CVSS v3
5.5
EPSS
0.0020
EPSS Percentile
10.0%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-476
Status
published
Products (15)
linux/Kernel
6.13.0 - 6.13.4linux
linux/Kernel
6.6.0 - 6.6.79linux
linux/Kernel
6.7.0 - 6.12.16linux
Linux/Linux
< 6.6
Linux/Linux
55b2395e4e92adc492c6b30ac109eb78250dcd9d - 189fb76215e479c10731baabb50f1a352d2078f5
Linux/Linux
55b2395e4e92adc492c6b30ac109eb78250dcd9d - 4d9b2b62e1136d10f661ec4c0c268140b6f74f4f
Linux/Linux
55b2395e4e92adc492c6b30ac109eb78250dcd9d - 7b4aebeecbbd5b5fe73e35fad3f62ed21aa7ef44
Linux/Linux
55b2395e4e92adc492c6b30ac109eb78250dcd9d - a7052afa9eae2239e25943baa8817a6a56e8aa68
Linux/Linux
6.12.16 - 6.12.*
Linux/Linux
6.13.4 - 6.13.*
... and 5 more
Published
Feb 27, 2025
Tracked Since
Feb 18, 2026