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.

Classification

CVE ID: CVE-2023-52448

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.06% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcde
https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37
https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178
https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414a
https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05
https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331a
https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4fa

Timeline