CVE-2022-40476

kernel: NULL pointer dereference issue in io_req_track_inflight in fs/io_uring.c

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · August 17, 2022

Updated · November 22, 2025

Description

A NULL pointer dereference issue was discovered in io_req_track_inflight in fs/io_uring.c. A local user could use this flaw to potentially crash the system causing a denial of service.

Statement

Red Hat Enterprise Linux is not affected by this flaw as io_uring (CONFIG_IO_URING) is not enabled in any current shipping kernels.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference