CVE-2026-43262

MEDIUM

gfs2: fiemap page fault fix

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 5.5
EPSS 0.0011
EPSS Percentile 1.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-401
Status published
Products (30)
linux/Kernel 2.6.29 - 5.15.202linux
linux/Kernel 5.16.0 - 6.1.165linux
linux/Kernel 6.13.0 - 6.18.16linux
linux/Kernel 6.19.0 - 6.19.6linux
linux/Kernel 6.2.0 - 6.6.128linux
linux/Kernel 6.7.0 - 6.12.75linux
Linux/Linux < 2.6.29
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 2e121c53b581e40397ae08090a7af4ed10781fbc
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 5d2c4f182ea8516de8682e2b60411c03df00e3ea
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 5d5d9ec957bfa1eb2b05861c19f5d701dd006db7
... and 20 more
Published May 06, 2026
Tracked Since May 06, 2026