CVE-2026-43174: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: io_uring/zcrx: fix post open error handling Closing a queue doesn't guarantee that all associated page pools are terminated right away, let the refcounting do the work instead of releasing the zcrx ctx directly.

Affected products

• Linux Linux Kernel: from 6.15, before 6.19.6 (fixed in 6.19.6)

Published 2026-05-06. Last modified 2026-06-17.