JFS Sees Data Integrity Hardening With Linux 7.1
It's pretty rare nowadays seeing any real changes to the JFS file-system on Linux when there are multiple far superior solutions available. But in any event, the JFS file-system driver has seen a few fixes in Linux 7.1.
For anyone still relying on JFS in production, the Linux 7.1 kernel is bringing more robust data integrity checking for the file-system. There are new integrity checks added to address potential index out-of-bounds, index/pointer overflows, and other invalid operations from happening. These data integrity issues were discovered using the Undefined Behavior Sanitizer "UBSAN".
There is also a fix for a corrupted list as well as other fixes to always load the file-system UUID during mount, avoiding a compiler warning, and other small fixes.
So for those interested in JFS in 2026, this pull is now in Git for Linux 7.1.
For anyone still relying on JFS in production, the Linux 7.1 kernel is bringing more robust data integrity checking for the file-system. There are new integrity checks added to address potential index out-of-bounds, index/pointer overflows, and other invalid operations from happening. These data integrity issues were discovered using the Undefined Behavior Sanitizer "UBSAN".
There is also a fix for a corrupted list as well as other fixes to always load the file-system UUID during mount, avoiding a compiler warning, and other small fixes.
So for those interested in JFS in 2026, this pull is now in Git for Linux 7.1.