CVE-2021-47116

ext4: fix memory leak in ext4_mb_init_backend on error path.

State: Published
Severity: Not scored
Published: Mar 15, 2024
Updated: May 23, 2026
Reserved: Mar 4, 2024

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	df61d3cff422433527d3bc388f69484f0781d226 to before 2050c6e5b161e5e25ce3c420fef58b24fa388a49Affected f91436d55a279f045987e8b8c1385585dca54be9 to before 04fb2baa0b147f51db065a1b13a11954abe592d0Affected f91436d55a279f045987e8b8c1385585dca54be9 to before a8867f4e3809050571c98de7a2d465aff5e4daf5Affected 9e7af67e9521fb5cbb5b01aca22921c313c2e48eAffected 5.10.27 to before 5.10.43Affected 5.11.11 to before 5.12Affected
LinuxLinux	5.12Affected before 5.12Not affected 5.10.43 through 5.10.Not affected 5.12.10 through 5.12.Not affected 5.13 and laterNot affected

Product

Versions

LinuxLinux

df61d3cff422433527d3bc388f69484f0781d226 to before 2050c6e5b161e5e25ce3c420fef58b24fa388a49Affected
f91436d55a279f045987e8b8c1385585dca54be9 to before 04fb2baa0b147f51db065a1b13a11954abe592d0Affected
f91436d55a279f045987e8b8c1385585dca54be9 to before a8867f4e3809050571c98de7a2d465aff5e4daf5Affected
9e7af67e9521fb5cbb5b01aca22921c313c2e48eAffected
5.10.27 to before 5.10.43Affected
5.11.11 to before 5.12Affected

LinuxLinux

5.12Affected
before 5.12Not affected
5.10.43 through 5.10.*Not affected
5.12.10 through 5.12.*Not affected
5.13 and laterNot affected

References

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