In the Linux kernel, the following vulnerability has been resolved:

MIPS: fw: Allow firmware to pass a empty env

fw_getenv will use env entry to determine style of env,
however it is legal for firmware to just pass a empty list.

Check if first entry exist before running strchr to avoid
null pointer dereference.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Tue, 30 Dec 2025 12:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: MIPS: fw: Allow firmware to pass a empty env fw_getenv will use env entry to determine style of env, however it is legal for firmware to just pass a empty list. Check if first entry exist before running strchr to avoid null pointer dereference.
Title MIPS: fw: Allow firmware to pass a empty env
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-12-30T12:16:07.018Z

Reserved: 2025-12-30T12:06:44.524Z

Link: CVE-2023-54279

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2025-12-30T13:16:16.860

Modified: 2025-12-30T13:16:16.860

Link: CVE-2023-54279

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.