GHSA-59MW-5P3C-3RH3
Vulnerability from github – Published: 2025-05-01 15:31 – Updated: 2025-11-10 21:30In 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": [],
"aliases": [
"CVE-2022-49832"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-01T15:16:06Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map\n\nHere is the BUG report by KASAN about null pointer dereference:\n\nBUG: KASAN: null-ptr-deref in strcmp+0x2e/0x50\nRead of size 1 at addr 0000000000000000 by task python3/2640\nCall Trace:\n strcmp\n __of_find_property\n of_find_property\n pinctrl_dt_to_map\n\nkasprintf() would return NULL pointer when kmalloc() fail to allocate.\nSo directly return ENOMEM, if kasprintf() return NULL pointer.",
"id": "GHSA-59mw-5p3c-3rh3",
"modified": "2025-11-10T21:30:28Z",
"published": "2025-05-01T15:31:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49832"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/040f726fecd88121f3b95e70369785ad452dddf9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5834a3a98cd266ad35a229923c0adbd0addc8d68"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/777430aa4ddccaa5accec6db90ffc1d47f00d471"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/91d5c5060ee24fe8da88cd585bb43b843d2f0dce"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/97e5b508e96176f1a73888ed89df396d7041bfcb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a988dcd3dd9e691c5ccc3324b209688f3b5453e9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/aaf552c5d53abe4659176e099575fe870d2e4768"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b4d9f55cd38435358bc16d580612bc0d798d7b4c"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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