CVE-2026-23109 - fs/writeback: skip AS_NO_DATA_INTEGRITY mappings in wait_sb_inodes()

CVE-2026-23109 - fs/writeback: skip AS_NO_DATA_INTEGRITY mappings in wait_sb_inodes()

https://cvefeed.io/rssfeed/latest.atom / Wed, 02/04/2026 - 20:00
CVE ID : CVE-2026-23109
Published : Feb. 4, 2026, 4:08 p.m. | 57 minutes ago
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.
Severity: 0.0 | NA
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