CVE-2022-1786

HighCVSS 7.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-843 CWE-416

Affected software

Vendor	Product	Versions
n/a	kernel	kernel v5.10 and v5.11

References

https://bugzilla.redhat.com/show_bug.cgi?id=2087760Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220722-0001/Third Party Advisory
https://www.debian.org/security/2022/dsa-5161Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2087760Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220722-0001/Third Party Advisory
https://www.debian.org/security/2022/dsa-5161Third Party Advisory

Timeline

Published: Jun 2, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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