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Red Hat: CVE-2023-52448: kernel: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump (Multiple Advisories)

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Red Hat: CVE-2023-52448: kernel: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:H/Au:S/C:N/I:N/A:C)
Published
02/22/2024
Created
05/24/2024
Added
05/23/2024
Modified
05/23/2024

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.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

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