CVE-2025-21699

gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag

Description

In the Linux kernel, the following vulnerability has been resolved: gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag Truncate an inode's address space when flipping the GFS2_DIF_JDATA flag: depending on that flag, the pages in the address space will either use buffer heads or iomap_folio_state structs, and we cannot mix the two.

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/2b0bd5051ad1c1e9ef4879f18e15a7712c974f3e	patch
https://git.kernel.org/stable/c/8c41abc11aa8438c9ed2d973f97e66674c0355df	patch
https://git.kernel.org/stable/c/4e3ded34f3f3c9d7ed2aac7be8cf51153646574a	patch
https://git.kernel.org/stable/c/2a40a140e11fec699e128170ccaa98b6b82cb503	patch
https://git.kernel.org/stable/c/4dd57d1f0e9844311c635a7fb39abce4f2ac5a61	patch
https://git.kernel.org/stable/c/4516febe325342555bb09ca5b396fb816d655821	patch
https://git.kernel.org/stable/c/5bb1fd0855bb0abc7d97e44758d6ffed7882d2d0	patch
https://git.kernel.org/stable/c/7c9d9223802fbed4dee1ae301661bf346964c9d2	patch

Frequently Asked Questions

What is the severity of CVE-2025-21699?: CVE-2025-21699 has been scored as a medium severity vulnerability.
How to fix CVE-2025-21699?: To fix CVE-2025-21699, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-21699 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-21699 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-21699?: CVE-2025-21699 affects Linux Linux, Linux Linux.

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