CVE-2022-4127

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

A NULL pointer dereference issue was discovered in the Linux kernel in io_files_update_with_index_alloc. A local user could use this flaw to potentially crash the system causing a denial of service.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

Vendor	Product	Versions
n/a	Linux kernel (io_uring)	Fixed in 5.19

References

https://github.com/torvalds/linux/commit/d785a773bed966a75ca1f11d108ae1897189975bPatch, Third Party Advisory
https://lore.kernel.org/all/d5a19c1e-9968-e22e-5917-c3139c5e7e89%40kernel.dk/Patch, Vendor Advisory
https://github.com/torvalds/linux/commit/d785a773bed966a75ca1f11d108ae1897189975bPatch, Third Party Advisory
https://lore.kernel.org/all/d5a19c1e-9968-e22e-5917-c3139c5e7e89%40kernel.dk/Patch, Vendor Advisory

Timeline

Published: Nov 28, 2022
Last modified: Jun 17, 2026
NVD status: Analyzed

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