VULNERABILITY INTELLIGENCE

CVE-2022-1786

CVSS score7.8 HIGH
EPSS probability1.02%
CISA KEVNot currently listed
Published2022-06-02
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system.

Weakness classification

  • secalert@redhat.com: CWE-843
  • nvd@nist.gov: CWE-416

Primary references