CVE-2021-41073

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-763

Affected software

No affected versions have been published.

Timeline

Published: Sep 19, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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