Please backport FAT end-of-directory fix to 6.18 and 6.12

Hi,

Please consider backporting upstream commit

6a2875517c778ac1111b6920e94cbab91cda8724
fat: stop reading directory entries past the end-of-directory marker

to 6.18.y and 6.12.y, and any other affected supported stable branches.

The fix prevents directory traversal from interpreting residual data after the FAT end-of-directory marker as real directory entries, resulting in bogus filenames and I/O errors.

This affects FAT16 CompactFlash media written by devices such as the Psion Series 7/netBook running EPOC32.

Thanks,
Nicolai

It does not apply cleanly to 6.12.y so please provide a working version for there, and older kernels, if you wish to see it applied there.

thanks,

greg k-h

Queued for 6.12, thanks. 6.18 is already queued. For the older trees, please send backports if you want it applied there.

Thanks,
Sasha