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CVE-2026-43174

kernel: io_uring/zcrx: fix post open error handling

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Severity

Unknown

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · May 6, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's io_uring/zcrx subsystem. Incorrect error handling during post-open operations allows for the direct release of zcrx ctx without ensuring that all associated page pools are properly terminated. This resource management issue could lead to system instability or a denial of service (DoS) condition, where legitimate users are unable to access system resources.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-911 · Improper Update of Reference Count