Public vulnerability disclosure

CVE-2022-49832

pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map

published

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.

Technical severityUnscoredNo score in collected sources
Published2025-05-01Source updated 2026-11-05
Collected2026-11-052 attributed sources

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
Linux
Linux
≥ 57291ce295c0aca738dd284c4a9c591c09ebee71; < aaf552c5d53abe4659176e099575fe870d2e4768 (affected, git)
≥ 57291ce295c0aca738dd284c4a9c591c09ebee71; < b4d9f55cd38435358bc16d580612bc0d798d7b4c (affected, git)
≥ 57291ce295c0aca738dd284c4a9c591c09ebee71; < a988dcd3dd9e691c5ccc3324b209688f3b5453e9 (affected, git)
≥ 57291ce295c0aca738dd284c4a9c591c09ebee71; < 040f726fecd88121f3b95e70369785ad452dddf9 (affected, git)
≥ 57291ce295c0aca738dd284c4a9c591c09ebee71; < 777430aa4ddccaa5accec6db90ffc1d47f00d471 (affected, git)
≥ 57291ce295c0aca738dd284c4a9c591c09ebee71; < 97e5b508e96176f1a73888ed89df396d7041bfcb (affected, git)
≥ 57291ce295c0aca738dd284c4a9c591c09ebee71; < 5834a3a98cd266ad35a229923c0adbd0addc8d68 (affected, git)
≥ 57291ce295c0aca738dd284c4a9c591c09ebee71; < 91d5c5060ee24fe8da88cd585bb43b843d2f0dce (affected, git)
Other versions: unaffected
CNA: Linux
Linux
Linux
3.5 (affected)
≥ 0; < 3.5 (unaffected, semver)
≥ 4.9.334; ≤ 4.9.* (unaffected, semver)
≥ 4.14.300; ≤ 4.14.* (unaffected, semver)
≥ 4.19.267; ≤ 4.19.* (unaffected, semver)
≥ 5.4.225; ≤ 5.4.* (unaffected, semver)
≥ 5.10.156; ≤ 5.10.* (unaffected, semver)
≥ 5.15.80; ≤ 5.15.* (unaffected, semver)
≥ 6.0.10; ≤ 6.0.* (unaffected, semver)
≥ 6.1; ≤ * (unaffected, original_commit_for_fix)
Other versions: affected
CNA: Linux

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

No CVSS assessment reported. An unscored record is not a low-severity determination.

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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