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CVE-2026-46250

kernel: MIPS: Work around LLVM bug when gp is used as global register variable

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Severity

Low

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · June 3, 2026

Updated · October 20, 2026

Description

A flaw was found in the Linux kernel, specifically affecting the MIPS architecture when compiled with LLVM. This vulnerability occurs because LLVM incorrectly restores the $gp register, which is used as a global register variable, after it has been intentionally modified during kernel relocation. This leads to the $gp register pointing to an incorrect memory location, causing an early system crash during initialization. The primary consequence is a Denial of Service (DoS) condition, rendering the system unusable.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-823 · Use of Out-of-range Pointer Offset