Riskcovery

CVE-2026-43262

gfs2: fiemap page fault fix

State
Published
Severity
Not scored
Published
May 6, 2026
Updated
May 11, 2026
Reserved
May 1, 2026

Read the record on cve.org

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

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • e9079cce201784632aed4b1a3121ee38c1ced0b6 to before 5d5d9ec957bfa1eb2b05861c19f5d701dd006db7Affected
  • e9079cce201784632aed4b1a3121ee38c1ced0b6 to before cead3bebf3e318578b8a86a5472015d713d2a8a8Affected
  • e9079cce201784632aed4b1a3121ee38c1ced0b6 to before e428670cfb2993d8c224effd076242ca6b0950deAffected
  • e9079cce201784632aed4b1a3121ee38c1ced0b6 to before 5d2c4f182ea8516de8682e2b60411c03df00e3eaAffected
  • e9079cce201784632aed4b1a3121ee38c1ced0b6 to before 2e121c53b581e40397ae08090a7af4ed10781fbcAffected
  • e9079cce201784632aed4b1a3121ee38c1ced0b6 to before 9d15fee888f0e8938c9aeed71ec9c2cbba0c88abAffected
  • e9079cce201784632aed4b1a3121ee38c1ced0b6 to before e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2Affected
LinuxLinux
  • 2.6.29Affected
  • before 2.6.29Not affected
  • 5.15.202 through 5.15.*Not affected
  • 6.1.165 through 6.1.*Not affected
  • 6.6.128 through 6.6.*Not affected
  • 6.12.75 through 6.12.*Not affected
  • 6.18.16 through 6.18.*Not affected
  • 6.19.6 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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