CVE-2022-33981

kernel: use-after-free in floppy driver may lead to a DoS

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Severity

Moderate

Red Hat Product Security

3.3

CVSS 3.1

Review impact separately from score.

Published · June 18, 2022

Updated · November 21, 2025

Description

A use-after-free flaw was found in drivers/block/floppy.c in floppy drive in the Linux Kernel. This issue could allow a local attacker to crash the system due to a race problem between raw_cmd_ioctl and seek_interrupt, which can lead to a kernel information leak.

Statement

This issue does not affect RHEL 8 and 9 Kernel releases, as the config option CONFIG_BLK_DEV_FD is not enabled, therefore, they are marked as not-affected.

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 · 3.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CWE-416 · Use After Free