CVE-2021-47116

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

ext4: fix memory leak in ext4_mb_init_backend on error path.

Fix a memory leak discovered by syzbot when a file system is corrupted with an illegally large s_log_groups_per_flex.

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-401

Affected software

VendorProductVersions
LinuxLinux>= df61d3cff422433527d3bc388f69484f0781d226, < 2050c6e5b161e5e25ce3c420fef58b24fa388a49; >= f91436d55a279f045987e8b8c1385585dca54be9, < 04fb2baa0b147f51db065a1b13a11954abe592d0; >= f91436d55a279f045987e8b8c1385585dca54be9, < a8867f4e3809050571c98de7a2d465aff5e4daf5; 9e7af67e9521fb5cbb5b01aca22921c313c2e48e; >= 5.10.27, < 5.10.43; >= 5.11.11, < 5.12
LinuxLinux5.12

References

Timeline

Published
Mar 15, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2021-47116: Medium severity, CVSS 5.5 | Vulnix