CVE-2022-49832

pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map

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.

N/A

CVSS

Severity:

EPSS 0.04%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/aaf552c5d53abe4659176e099575fe870d2e4768
https://git.kernel.org/stable/c/b4d9f55cd38435358bc16d580612bc0d798d7b4c
https://git.kernel.org/stable/c/a988dcd3dd9e691c5ccc3324b209688f3b5453e9
https://git.kernel.org/stable/c/040f726fecd88121f3b95e70369785ad452dddf9
https://git.kernel.org/stable/c/777430aa4ddccaa5accec6db90ffc1d47f00d471
https://git.kernel.org/stable/c/97e5b508e96176f1a73888ed89df396d7041bfcb
https://git.kernel.org/stable/c/5834a3a98cd266ad35a229923c0adbd0addc8d68
https://git.kernel.org/stable/c/91d5c5060ee24fe8da88cd585bb43b843d2f0dce

Frequently Asked Questions

What is the severity of CVE-2022-49832?: CVE-2022-49832 has not yet been assigned a CVSS score.
How to fix CVE-2022-49832?: To fix CVE-2022-49832, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-49832 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-49832 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-49832?: CVE-2022-49832 affects Linux Linux, Linux Linux.

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