CVE-2023-54279

MIPS: fw: Allow firmware to pass a empty env

N/A

Published: December 30, 2025 at 12:16 PM UTC

Updated: June 17, 2026 at 06:47 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

N/A

Exploit prediction

EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

3.10 ≤ v < 4.14.3153.10 ≤ v < 4.19.2833.10 ≤ v < 5.10.1803.10 ≤ v < 5.15.1113.10 ≤ v < 5.4.2433.10 ≤ v < 6.1.283.10 ≤ v < 6.2.153.10 ≤ v < 6.3.23.10 ≤ v < 6.414aecdd419217e041fb5dd2749d11f58503bdf623.10

Vendor states this is fixed in 0f91290774c798199ba4b8df93de5c3156b5163d (fixed)

Vendor states this is fixed in 3ef93b7bd9e042db240843f24a80e14da38c6830 (fixed)

Vendor states this is fixed in 47e61cadc7a5f3dffd42d2d6fda81be163f1ab82 (fixed)

Vendor states this is fixed in 830181ddced5a05a711dc9da8043203b1f33a77e (fixed)

Vendor states this is fixed in a6b54af407873227caef6262e992f5422cdcb6ae (fixed)

Vendor states this is fixed in ad79828f133e98585ab2236cad04a55eb7141bbe (fixed)

Vendor states this is fixed in aeed787bbbbe1b842beec9a065a36c915226f704 (fixed)

Vendor states this is fixed in ee1809ed7bc456a72dc8410b475b73021a3a68d5 (fixed)

Vendor states this is fixed in f334b31625683418aaa2a335470eec950a95a254 (fixed)

Vendor states this is fixed in 3.10 (unaffected)

Vendor states this is fixed in 4.14.315 (unaffected)

Vendor states this is fixed in 4.19.283 (unaffected)