CVE-2022-49832

pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map

State: Published
Severity: Not scored
Published: May 1, 2025
Updated: May 11, 2026
Reserved: May 1, 2025

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	57291ce295c0aca738dd284c4a9c591c09ebee71 to before aaf552c5d53abe4659176e099575fe870d2e4768Affected 57291ce295c0aca738dd284c4a9c591c09ebee71 to before b4d9f55cd38435358bc16d580612bc0d798d7b4cAffected 57291ce295c0aca738dd284c4a9c591c09ebee71 to before a988dcd3dd9e691c5ccc3324b209688f3b5453e9Affected 57291ce295c0aca738dd284c4a9c591c09ebee71 to before 040f726fecd88121f3b95e70369785ad452dddf9Affected 57291ce295c0aca738dd284c4a9c591c09ebee71 to before 777430aa4ddccaa5accec6db90ffc1d47f00d471Affected 57291ce295c0aca738dd284c4a9c591c09ebee71 to before 97e5b508e96176f1a73888ed89df396d7041bfcbAffected 57291ce295c0aca738dd284c4a9c591c09ebee71 to before 5834a3a98cd266ad35a229923c0adbd0addc8d68Affected 57291ce295c0aca738dd284c4a9c591c09ebee71 to before 91d5c5060ee24fe8da88cd585bb43b843d2f0dceAffected
LinuxLinux	3.5Affected before 3.5Not affected 4.9.334 through 4.9.Not affected 4.14.300 through 4.14.Not affected 4.19.267 through 4.19.Not affected 5.4.225 through 5.4.Not affected 5.10.156 through 5.10.Not affected 5.15.80 through 5.15.Not affected 6.0.10 through 6.0.*Not affected 6.1 and laterNot affected

Product

Versions

LinuxLinux

57291ce295c0aca738dd284c4a9c591c09ebee71 to before aaf552c5d53abe4659176e099575fe870d2e4768Affected
57291ce295c0aca738dd284c4a9c591c09ebee71 to before b4d9f55cd38435358bc16d580612bc0d798d7b4cAffected
57291ce295c0aca738dd284c4a9c591c09ebee71 to before a988dcd3dd9e691c5ccc3324b209688f3b5453e9Affected
57291ce295c0aca738dd284c4a9c591c09ebee71 to before 040f726fecd88121f3b95e70369785ad452dddf9Affected
57291ce295c0aca738dd284c4a9c591c09ebee71 to before 777430aa4ddccaa5accec6db90ffc1d47f00d471Affected
57291ce295c0aca738dd284c4a9c591c09ebee71 to before 97e5b508e96176f1a73888ed89df396d7041bfcbAffected
57291ce295c0aca738dd284c4a9c591c09ebee71 to before 5834a3a98cd266ad35a229923c0adbd0addc8d68Affected
57291ce295c0aca738dd284c4a9c591c09ebee71 to before 91d5c5060ee24fe8da88cd585bb43b843d2f0dceAffected

LinuxLinux

3.5Affected
before 3.5Not affected
4.9.334 through 4.9.*Not affected
4.14.300 through 4.14.*Not affected
4.19.267 through 4.19.*Not affected
5.4.225 through 5.4.*Not affected
5.10.156 through 5.10.*Not affected
5.15.80 through 5.15.*Not affected
6.0.10 through 6.0.*Not affected
6.1 and laterNot affected

References

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