CVE-2026-43258

kernel: alpha: fix user-space corruption during memory compaction

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Severity

Low

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · May 6, 2026

Updated · October 20, 2026

Description

A flaw was found in the Linux kernel, specifically affecting Alpha systems when memory compaction is enabled. Insufficient Translation Lookaside Buffer (TLB) shootdown during page migration can lead to sporadic user-space crashes and heap corruption. This vulnerability can result in application failures, including segmentation faults (SIGSEGV) and issues with memory allocation.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-821 · Incorrect Synchronization