CVE-2023-52448

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.

• CWE-476

• https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05Patch
• https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37Patch
• https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4faPatch
• https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331aPatch
• https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414aPatch
• https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178Patch
• https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcdePatch
• https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05Patch
• https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37Patch
• https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4faPatch
• https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331aPatch
• https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414aPatch
• https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178Patch
• https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcdePatch
• https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html

Published

Feb 22, 2024

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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