01 Record

CVE-2025-21699

gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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02 Description

gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 16.2% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-07-30.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published: 2025-02-12 13:52Z1 YR AGO
Last updated: 2026-08-05 11:53Z2 MO AGO
Reserved: 2024-12-29
Assigning CNA: Linux
Record state: PUBLISHED
Severity: High (CVSS 7.8)
CNA CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses: No CWE assigned
Data version: 5.2
Document digest: b26b80ad8d7fb5ffe9ae1db5e832d0cf4ac3733fa64f91bedd60026bb4491997

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux2164f9b9186962ffb7c687e18ec6f5255525f09d to < 8c41abc11aa8438c9ed2d973f97e66674c0355df, 2164f9b9186962ffb7c687e18ec6f5255525f09d to < 4e3ded34f3f3c9d7ed2aac7be8cf51153646574a, 2164f9b9186962ffb7c687e18ec6f5255525f09d to < 2a40a140e11fec699e128170ccaa98b6b82cb503, 2164f9b9186962ffb7c687e18ec6f5255525f09d to < 4dd57d1f0e9844311c635a7fb39abce4f2ac5a61, 2164f9b9186962ffb7c687e18ec6f5255525f09d to < 4516febe325342555bb09ca5b396fb816d655821, 2164f9b9186962ffb7c687e18ec6f5255525f09d to < 5bb1fd0855bb0abc7d97e44758d6ffed7882d2d0, 2164f9b9186962ffb7c687e18ec6f5255525f09d to < 7c9d9223802fbed4dee1ae301661bf346964c9d2, 5.10—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/8c41abc11aa8438c9ed2d973f97e66674c0355df
git.kernel.orghttps://git.kernel.org/stable/c/4e3ded34f3f3c9d7ed2aac7be8cf51153646574a
git.kernel.orghttps://git.kernel.org/stable/c/2a40a140e11fec699e128170ccaa98b6b82cb503
git.kernel.orghttps://git.kernel.org/stable/c/4dd57d1f0e9844311c635a7fb39abce4f2ac5a61
git.kernel.orghttps://git.kernel.org/stable/c/4516febe325342555bb09ca5b396fb816d655821
git.kernel.orghttps://git.kernel.org/stable/c/5bb1fd0855bb0abc7d97e44758d6ffed7882d2d0
git.kernel.orghttps://git.kernel.org/stable/c/7c9d9223802fbed4dee1ae301661bf346964c9d2
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

07 Fixed in

Debian 12

linux
Fixed in 6.1.128-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.12-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.12.12-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.