In the Linux kernel, the following vulnerability has been resolved: gfs2: prevent NULL pointer dereference during unmount When flushing out… (CVE-2026-53048)
In the Linux kernel, the following vulnerability has been resolved: gfs2: prevent NULL pointer dereference during unmount When flushing out outstanding glock work during an unmount, gfs2_log_flush() can be called when sdp->sd_jdesc has already been deallocated and sdp->sd_jdesc is NULL. Commit 35264909e9d1 ("gfs2: Fix NULL pointer dereference in gfs2_log_flush") added a check for that to gfs2_log_flush() itself, but it missed the sdp->sd_jdesc dereference in gfs2_log_release(). Fix that.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-53048) concerns a NULL pointer dereference in the gfs2 filesystem during unmount operations in Microsoft software, specifically affecting version 3.0. The issue could cause system crashes or denial of service due to improper handling of unmount procedures. No further technical details, CVSS score, or exploit information is available from the provided data.
Potential Impact
The impact is a potential denial of service or system instability caused by a NULL pointer dereference during unmount of the gfs2 filesystem version 3.0. No evidence of active exploitation is reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or workaround information is provided at this time.
In the Linux kernel, the following vulnerability has been resolved: gfs2: prevent NULL pointer dereference during unmount When flushing out… (CVE-2026-53048)
Description
In the Linux kernel, the following vulnerability has been resolved: gfs2: prevent NULL pointer dereference during unmount When flushing out outstanding glock work during an unmount, gfs2_log_flush() can be called when sdp->sd_jdesc has already been deallocated and sdp->sd_jdesc is NULL. Commit 35264909e9d1 ("gfs2: Fix NULL pointer dereference in gfs2_log_flush") added a check for that to gfs2_log_flush() itself, but it missed the sdp->sd_jdesc dereference in gfs2_log_release(). Fix that.
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-53048) concerns a NULL pointer dereference in the gfs2 filesystem during unmount operations in Microsoft software, specifically affecting version 3.0. The issue could cause system crashes or denial of service due to improper handling of unmount procedures. No further technical details, CVSS score, or exploit information is available from the provided data.
Potential Impact
The impact is a potential denial of service or system instability caused by a NULL pointer dereference during unmount of the gfs2 filesystem version 3.0. No evidence of active exploitation is reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or workaround information is provided at this time.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-53048
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- 3.1
Threat ID: 6a483cbf27e9c79719d836db
Added to database: 07/03/2026, 22:50:39 UTC
Last enriched: 07/03/2026, 23:09:30 UTC
Last updated: 07/31/2026, 19:24:47 UTC
Views: 22
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