In the Linux kernel, the following vulnerability has been resolved:

gfs2: fiemap page fault fix

In gfs2_fiemap(), we are calling iomap_fiemap() while holding the inode
glock. This can lead to recursive glock taking if the fiemap buffer is
memory mapped to the same inode and accessing it triggers a page fault.

Fix by disabling page faults for iomap_fiemap() and faulting in the
buffer by hand if necessary.

Fixes xfstest generic/742.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 08 May 2026 20:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-401

Thu, 07 May 2026 15:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-399
CWE-400

Thu, 07 May 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-764
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low


Wed, 06 May 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-399
CWE-400

Wed, 06 May 2026 12:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: gfs2: fiemap page fault fix In gfs2_fiemap(), we are calling iomap_fiemap() while holding the inode glock. This can lead to recursive glock taking if the fiemap buffer is memory mapped to the same inode and accessing it triggers a page fault. Fix by disabling page faults for iomap_fiemap() and faulting in the buffer by hand if necessary. Fixes xfstest generic/742.
Title gfs2: fiemap page fault fix
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-11T22:21:09.600Z

Reserved: 2026-05-01T14:12:55.997Z

Link: CVE-2026-43262

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-05-06T12:16:47.133

Modified: 2026-05-08T20:41:51.240

Link: CVE-2026-43262

cve-icon Redhat

Severity : Low

Publid Date: 2026-05-06T00:00:00Z

Links: CVE-2026-43262 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-08T22:00:15Z

Weaknesses