CVE-2026-43174
kernel: io_uring/zcrx: fix post open error handling
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Severity
UnknownRed Hat Product Security
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