# CVE-2026-31559: linux: In the Linux kernel, the following vulnerability has been resolved:  LoongArch: Fix missing NULL checks for kstrdup()  1

CVE-2026-31559 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-31559, released May 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-31559
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0012
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 24, 2026

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.85-1 | [DEBIAN-CVE-2026-31559](https://patchblox.com/security/data/fix/linux/debian-cve-2026-31559.md) | May 15, 2026 |
| Linux | linux Debian 14 | 6.19.11-1 | [DEBIAN-CVE-2026-31559](https://patchblox.com/security/data/fix/linux/debian-cve-2026-31559.md) | May 15, 2026 |

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Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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