CVE-2022-33981

drivers/block/floppy.c in the Linux kernel before 5.17.6 is vulnerable to a denial of service, because of a concurrency use-after-free flaw after deallocating raw_cmd in the raw_cmd_ioctl function.

CVSS v3.1 NVD

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

CVSS v2.0 NVD

2.1 LOWAV:L/AC:L/Au:N/C:N/I:N/A:P

EPSS

0.55% chance of exploitation in the next 30 days, 45th percentile

Published

2022-06-18

Updated

2025-05-05

Proof-of-concept exploits (1)

• https://seclists.org/oss-sec/2022/q2/66

Security advisories

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.6
• https://exchange.xforce.ibmcloud.com/vulnerabilities/225362
• torvalds/linux/commit/233087ca063686964a53c829d547c7571e3f67bf
• https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
• https://www.debian.org/security/2022/dsa-5173

References

• CVE Record
• NVD entry