CVE-2023-52448: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump
First published: Thu Feb 22 2024(Updated: )
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 creatingrgd->rd_gl fails in read_rindex_entry(). Add a NULL pointer check in gfs2_rgrp_dump() to prevent that.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=4.20<5.4.268 | |
| Linux Linux kernel | >=5.5.0<5.10.209 | |
| Linux Linux kernel | >=5.11.0<5.15.148 | |
| Linux Linux kernel | >=5.16.0<6.1.75 | |
| Linux Linux kernel | >=6.2.0<6.6.14 | |
| Linux Linux kernel | >=6.7.0<6.7.2 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.5-1 6.11.7-1 |
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Reference Links
- https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05
- https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37
- https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4fa
- https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331a
- https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414a
- https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178
- https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcde
- https://launchpad.net/bugs/cve/CVE-2023-52448
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2265669
- https://access.redhat.com/errata/RHSA-2024:2394
- https://access.redhat.com/errata/RHSA-2024:2950
- https://access.redhat.com/errata/RHSA-2024:3138
- https://access.redhat.com/security/cve/CVE-2023-52448
- https://bugzilla.redhat.com/show_bug.cgi?id=2265653
- https://git.kernel.org/linus/8877243beafa7c6bfc42022cbfdf9e39b25bd4fa
- https://security-tracker.debian.org/tracker/CVE-2023-52448
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://ubuntu.com/security/notices/USN-6688-1
- https://ubuntu.com/security/notices/USN-6725-1
- https://ubuntu.com/security/notices/USN-6726-1
- https://www.cve.org/CVERecord?id=CVE-2023-52448
- https://ubuntu.com/security/notices/USN-6725-2
- https://ubuntu.com/security/notices/USN-6726-2
- https://ubuntu.com/security/notices/USN-6726-3
- https://ubuntu.com/security/notices/USN-6818-1
- https://ubuntu.com/security/notices/USN-6819-1
- https://ubuntu.com/security/notices/USN-6818-2
- https://ubuntu.com/security/notices/USN-6819-2
- https://ubuntu.com/security/notices/USN-6819-3
- https://ubuntu.com/security/notices/USN-6818-3
- https://ubuntu.com/security/notices/USN-6818-4
- https://ubuntu.com/security/notices/USN-6819-4
- https://nvd.nist.gov/vuln/detail/CVE-2023-52448
- https://git.kernel.org/linus/72244b6bc752b5c496f09de9a13c18adc314a53c
- https://ubuntu.com/security/CVE-2023-52448
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