Medium 5.5Published Apr 24, 2026

CVE-2026-31559LoongArch: Fix missing NULL checks for kstrdup()

Updated under an hour ago (Oct 27, 2026, 11:50 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Fix missing NULL checks for kstrdup() 1. Replace "of_find_node_by_path("/")" with "of_root" to avoid multiple calls to "of_node_put()". 2. Fix a potential kernel oops during early boot when memory allocation fails while parsing CPU model from device tree.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from facc69f43502c135c16b97d5ded7253f15597912 before 5e7fde2c551f86e6c3de3fd7a9b1f52806ac8db0; from 70a2365e18affc5ebdaab1ca6a0b3c4f3aac2ee8 before a1da957c25cf751a2dce8fb7777f82ccbac0cb3e; from 70a2365e18affc5ebdaab1ca6a0b3c4f3aac2ee8 before b61a309743322fb57fb9afa9aa3495ac758e4f5e; 70a2365e18affc5ebdaab1ca6a0b3c4f3aac2ee8 builds before 3a28daa9b7d7c2ddf2c722e9e95d7e0928bf0cd1; 620805dc674eab3055543496a7ef25beb9ffd2a8; 8dfeedf9eceadc1a2fc9066b4c5230690d1cad48; from 6.12.43 before 6.12.80; from 6.15.11 before 6.16; and 1 more ranges	CNA record
linux linux_kernel linux:linux_kernel	from 6.12.43 before 6.12.80; from 6.15.11 before 6.16; from 6.16.2 before 6.17; from 6.17.1 before 6.18.21; from 6.19 before 6.19.11; 6.17; 7.0; 7.0; and 5 more ranges	NVD

References

References

https://git.kernel.org/stable/c/5e7fde2c551f86e6c3de3fd7a9b1f52806ac8db0	patch
https://git.kernel.org/stable/c/a1da957c25cf751a2dce8fb7777f82ccbac0cb3e	patch
https://git.kernel.org/stable/c/b61a309743322fb57fb9afa9aa3495ac758e4f5e	patch
https://git.kernel.org/stable/c/3a28daa9b7d7c2ddf2c722e9e95d7e0928bf0cd1	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.