Riskcovery

CVE-2026-23109

fs/writeback: skip AS_NO_DATA_INTEGRITY mappings in wait_sb_inodes()

State
Published
Severity
Not scored
Published
Feb 4, 2026
Updated
May 11, 2026
Reserved
Jan 13, 2026

Read the record on cve.org

Description

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

fs/writeback: skip AS_NO_DATA_INTEGRITY mappings in wait_sb_inodes()

Above the while() loop in wait_sb_inodes(), we document that we must wait for all pages under writeback for data integrity. Consequently, if a mapping, like fuse, traditionally does not have data integrity semantics, there is no need to wait at all; we can simply skip these inodes.

This restores fuse back to prior behavior where syncs are no-ops. This fixes a user regression where if a system is running a faulty fuse server that does not reply to issued write requests, this causes wait_sb_inodes() to wait forever.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 0c58a97f919c24fe4245015f4375a39ff05665b6 to before 3f4ed5e2b8f111553562507ad6202432c7c57731Affected
  • 0c58a97f919c24fe4245015f4375a39ff05665b6 to before f9a49aa302a05e91ca01f69031cb79a0ea33031fAffected
LinuxLinux
  • 6.16Affected
  • before 6.16Not affected
  • 6.18.8 through 6.18.*Not affected
  • 6.19 and laterNot affected

References

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