CVE-2026-74358: ext4: fix fast commit wait/wake bit mapping on 64-bit
Published Aug 15, 2026
·Updated
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix fast commit wait/wake bit mapping on 64-bit
On 64-bit, ext4 dynamic inode states live in the upper half of iflags, and ext4testinodestate() applies the corresponding +32 offset.
The fast-commit wait and wake paths open-coded the wait key with the raw EXT4STATE value. Add small helpers for the state wait word and bit, and use them for the FCCOMMITTING and FCFLUSHINGDATA waits so the wait key follows the same mapping as the state helpers.
Event History
Aug 15, 2026
CVE Published
via MITRE·05:58 AM
Data Sourced
via MITRE·05:58 AM
Description