Bug 2394621 (CVE-2025-39753)
| Summary: | CVE-2025-39753 kernel: Linux kernel (gfs2): Denial of Service due to missing migrate_folio implementation | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | rhel-process-autobot, watson-tool-maintainers |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in the Linux kernel's Global File System 2 (gfs2) component. A local user could exploit this vulnerability due to the gfs2_meta_aops not properly handling folio migration. This oversight can lead to system instability and cause a Denial of Service (DoS) by triggering kernel warnings and failures during specific filesystem operations.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
In the Linux kernel, the following vulnerability has been resolved: gfs2: Set .migrate_folio in gfs2_{rgrp,meta}_aops Clears up the warning added in 7ee3647243e5 ("migrate: Remove call to ->writepage") that occurs in various xfstests, causing "something found in dmesg" failures. [ 341.136573] gfs2_meta_aops does not implement migrate_folio [ 341.136953] WARNING: CPU: 1 PID: 36 at mm/migrate.c:944 move_to_new_folio+0x2f8/0x300