CVE-2021-47116

ext4: fix memory leak in ext4_mb_init_backend on error path.

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49 patch
https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0 patch
https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5 patch

Frequently Asked Questions

What is the severity of CVE-2021-47116?
CVE-2021-47116 has been scored as a medium severity vulnerability.
How to fix CVE-2021-47116?
To fix CVE-2021-47116, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-47116 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-47116 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-47116?
CVE-2021-47116 affects Linux Linux, Linux Linux.
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