CVE-2023-52448

gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump

Description

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump Syzkaller has reported a NULL pointer dereference when accessing rgd->rd_rgl in gfs2_rgrp_dump(). This can happen when creating rgd->rd_gl fails in read_rindex_entry(). Add a NULL pointer check in gfs2_rgrp_dump() to prevent that.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcde patch
https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37 patch
https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178 patch
https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414a patch
https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05 patch
https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331a patch
https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4fa patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html

Frequently Asked Questions

What is the severity of CVE-2023-52448?
CVE-2023-52448 has been scored as a medium severity vulnerability.
How to fix CVE-2023-52448?
To fix CVE-2023-52448, 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-2023-52448 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-52448 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-2023-52448?
CVE-2023-52448 affects Linux Linux, Linux Linux.
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