CVE-2026-45995: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: io_uring/zcrx: fix user_struct uaf io_free_rbuf_ring() usees a struct user_struct, which io_zcrx_ifq_free() puts it down before destroying the ring.

Affected products

• Linux Linux Kernel: from 6.19, before 7.0.4 (fixed in 7.0.4)

Published 2026-05-27. Last modified 2026-06-17.