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Solution
No solution given by the vendor.
Workaround
Run gfs2-utils tools in a containerized or VM-isolated environment when processing potentially compromised or untrusted GFS2 filesystem images. Disable automatic fsck at boot for GFS2 filesystems until patches are applied by setting fs_passno to 0 in /etc/fstab. Use ulimit -s to reduce the stack size limit, converting potential exploitation into a controlled crash.
Thu, 03 Sep 2026 16:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat gfs2-utils
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| Vendors & Products |
Redhat gfs2-utils
|
Thu, 03 Sep 2026 12:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A stack overflow vulnerability was found in gfs2-utils. The hash table traversal code in metawalk.c uses alloca() with an exponentially-derived size from the untrusted on-disk di_depth field without bounds validation. A crafted GFS2 filesystem image with a large di_depth value causes stack exhaustion and a denial of service when processed by fsck.gfs2, gfs2_edit, or savemeta. | |
| Title | Gfs2-utils: gfs2-utils: stack overflow via alloca(1<<di_depth) in hash table traversal | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| Weaknesses | CWE-770 | |
| CPEs | cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
|
| Vendors & Products |
Redhat
Redhat enterprise Linux |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-09-03T12:23:06.486Z
Reserved: 2026-08-05T08:51:19.852Z
Link: CVE-2026-71219
No data.
Status : Received
Published: 2026-09-03T13:06:02.550
Modified: 2026-09-03T13:06:02.550
Link: CVE-2026-71219
No data.
OpenCVE Enrichment
Updated: 2026-09-03T15:33:11Z