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 Kernel | >=4.20<5.4.268 | |
| Linux Kernel | >=5.5.0<5.10.209 | |
| Linux Kernel | >=5.11.0<5.15.148 | |
| Linux Kernel | >=5.16.0<6.1.75 | |
| Linux Kernel | >=6.2.0<6.6.14 | |
| Linux Kernel | >=6.7.0<6.7.2 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 | |
| IBM Security Verify Governance - Identity Manager | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Software Stack | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Virtual Appliance | <=ISVG 10.0.2 | |
| IBM Security Verify Governance Identity Manager Container | <=ISVG 10.0.2 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
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://access.redhat.com/errata/RHSA-2024:5255
- https://access.redhat.com/errata/RHSA-2024:5281
- https://access.redhat.com/errata/RHSA-2024:5365
- https://access.redhat.com/errata/RHSA-2024:5364
- https://bugzilla.redhat.com/show_bug.cgi?id=2265653
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52448
- https://nvd.nist.gov/vuln/detail/CVE-2023-52448
- https://security-tracker.debian.org/tracker/CVE-2023-52448
- https://ubuntu.com/security/CVE-2023-52448
- https://git.kernel.org/linus/8877243beafa7c6bfc42022cbfdf9e39b25bd4fa
- https://www.ibm.com/support/pages/node/7230443 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2023-52448?
CVE-2023-52448 has a medium severity rating due to the potential for denial of service caused by a NULL pointer dereference.
How do I fix CVE-2023-52448?
To fix CVE-2023-52448, update to a patched version of the Linux Kernel, specifically versions 5.10.223-1, 6.1.123-1, or later.
Which Linux Kernel versions are affected by CVE-2023-52448?
CVE-2023-52448 affects multiple Linux Kernel versions including those from 4.20 to 6.7.2.
What impact does CVE-2023-52448 have on systems?
CVE-2023-52448 can lead to a kernel crash, resulting in a denial of service on the affected systems.
Who reported the vulnerability CVE-2023-52448?
The vulnerability CVE-2023-52448 was reported by Syzkaller, a tool for finding bugs in kernel code.
- agent/weakness
- agent/title
- agent/type
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/first-publish-date
- agent/severity
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2023-52448
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/trending
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-cve
- collector/usn-cve
- source/Ubuntu
- collector/security-tracker-debian
- source/Debian
- agent/last-modified-date
- agent/references
- agent/source
- agent/softwarecombine
- agent/tags
- agent/description
- agent/event
- collector/ibm-support
- source/IBM
- vendor/linux
- canonical/linux kernel
- version/linux kernel/4.20
- version/linux kernel/5.5.0
- version/linux kernel/5.11.0
- version/linux kernel/5.16.0
- version/linux kernel/6.2.0
- version/linux kernel/6.7.0
- package-manager/debian
- vendor/ibm
- canonical/ibm security verify governance - identity manager
- version/ibm security verify governance - identity manager/isvg 10.0.2
- canonical/ibm security verify governance, identity manager software stack
- version/ibm security verify governance, identity manager software stack/isvg 10.0.2
- canonical/ibm security verify governance, identity manager virtual appliance
- version/ibm security verify governance, identity manager virtual appliance/isvg 10.0.2
- canonical/ibm security verify governance identity manager container
- version/ibm security verify governance identity manager container/isvg 10.0.2