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.
Affected products
linux: linux kernel
References7
- git.kernel.org/stable/c/2e121c53b581e40397ae08090a7af4ed10781fbc Patch
- git.kernel.org/stable/c/5d2c4f182ea8516de8682e2b60411c03df00e3ea Patch
- git.kernel.org/stable/c/5d5d9ec957bfa1eb2b05861c19f5d701dd006db7 Patch
- git.kernel.org/stable/c/9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab Patch
- git.kernel.org/stable/c/cead3bebf3e318578b8a86a5472015d713d2a8a8 Patch
- git.kernel.org/stable/c/e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2 Patch
- git.kernel.org/stable/c/e428670cfb2993d8c224effd076242ca6b0950de Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 2 · as of 13 November 2026
- CWE
- CWE-401
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