Description
In the Linux kernel, the following vulnerability has been resolved: pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map Here is the BUG report by KASAN about null pointer dereference: BUG: KASAN: null-ptr-deref in strcmp+0x2e/0x50 Read of size 1 at addr 0000000000000000 by task python3/2640 Call Trace: strcmp __of_find_property of_find_property pinctrl_dt_to_map kasprintf() would return NULL pointer when kmalloc() fail to allocate. So directly return ENOMEM, if kasprintf() return NULL pointer.
Affected products
linux: linux kernel
References8
- git.kernel.org/stable/c/040f726fecd88121f3b95e70369785ad452dddf9 Patch
- git.kernel.org/stable/c/5834a3a98cd266ad35a229923c0adbd0addc8d68 Patch
- git.kernel.org/stable/c/777430aa4ddccaa5accec6db90ffc1d47f00d471 Patch
- git.kernel.org/stable/c/91d5c5060ee24fe8da88cd585bb43b843d2f0dce Patch
- git.kernel.org/stable/c/97e5b508e96176f1a73888ed89df396d7041bfcb Patch
- git.kernel.org/stable/c/a988dcd3dd9e691c5ccc3324b209688f3b5453e9 Patch
- git.kernel.org/stable/c/aaf552c5d53abe4659176e099575fe870d2e4768 Patch
- git.kernel.org/stable/c/b4d9f55cd38435358bc16d580612bc0d798d7b4c Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 12 · as of 7 November 2026
- CWE
- CWE-476
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.