CVE-2022-49832
pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| 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
- https://git.kernel.org/stable/c/aaf552c5d53abe4659176e099575fe870d2e4768CNA: Linux
- https://git.kernel.org/stable/c/b4d9f55cd38435358bc16d580612bc0d798d7b4cCNA: Linux
- https://git.kernel.org/stable/c/a988dcd3dd9e691c5ccc3324b209688f3b5453e9CNA: Linux
- https://git.kernel.org/stable/c/040f726fecd88121f3b95e70369785ad452dddf9CNA: Linux
- https://git.kernel.org/stable/c/777430aa4ddccaa5accec6db90ffc1d47f00d471CNA: Linux
- https://git.kernel.org/stable/c/97e5b508e96176f1a73888ed89df396d7041bfcbCNA: Linux
- https://git.kernel.org/stable/c/5834a3a98cd266ad35a229923c0adbd0addc8d68CNA: Linux
- https://git.kernel.org/stable/c/91d5c5060ee24fe8da88cd585bb43b843d2f0dceCNA: Linux
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