CVE-2026-45995

io_uring/zcrx: fix user_struct uaf

published May 27, 2026

CVSS
—
EPSS
0%
Percentile
5.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00165 · 5.4th percentile
Published
2026-05-27T12:55Z
EPSS history
Timeline
  • 27 MAY 12:55Z
    io_uring/zcrx: fix user_struct uaf
    cvelistv5