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Vendor Workaround
Do not run gfs2-utils savemeta on untrusted or potentially compromised GFS2 filesystem images. Run gfs2-utils tools in a containerized or VM-isolated environment when processing untrusted images. Disable automatic fsck at boot for GFS2 filesystems until patches are applied by setting fs_passno to 0 in /etc/fstab.
Tracking
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Thu, 03 Sep 2026 12:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images. | |
| Title | Gfs2-utils: gfs2-utils: stack out-of-bounds write via unchecked height in savemeta | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| Weaknesses | CWE-787 | |
| 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
|
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-09-03T12:23:17.596Z
Reserved: 2026-08-05T08:51:19.853Z
Link: CVE-2026-71221
No data.
Status : Received
Published: 2026-09-03T13:06:02.887
Modified: 2026-09-03T13:06:02.887
Link: CVE-2026-71221
No data.
OpenCVE Enrichment
No data.