NULL pointer dereference in Linux
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.
EPSS: 0.002 (12.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux — versions 55b2395e4e92adc492c6b30ac109eb78250dcd9d, 6.6, 0
- Linux Linux_kernel — versions 6.14
Weakness classification (CWE)
References
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch, Mailing List)
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch, Mailing List)
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch, Mailing List)
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch, Mailing List)
Frequently asked questions
- What is CVE-2025-21783?
- CVE-2025-21783 is a medium-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2025-02-27.
- How severe is CVE-2025-21783?
- Medium severity. CVSS v3 base score is 5.5 out of 10.