CVE-2025-39753 gfs2: Set .migrate_folio in gfs2_{rgrp,meta}_aops
Missing migrate_folio implementation in GFS2 filesystem triggers kernel warnings, potentially leading to system instability or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-39753?
CVE-2025-39753 is a medium-severity denial of service vulnerability in Linux kernel, published on 11 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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
Which versions are affected by CVE-2025-39753?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-39753?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-39753 being exploited?
There is no known exploitation of CVE-2025-39753 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-67163, BELL-CVE-2025-39753, DEBIAN-CVE-2025-39753, GHSA-4mmp-82cj-jqc7, ROOT-OS-DEBIAN-11-CVE-2025-39753, ROOT-OS-DEBIAN-12-CVE-2025-39753 and 3 more.