CVE-2022-1786

kernel: invalid-free in io_uring that can lead to LPE

Published May 31, 2022 CVSS 3.1 · 7.8 High EPSS 1.0% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-5161-1 linux security update
EUVD EUVD EUVD-2022-25066 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.
History

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