Re: ext4 info leak in creation times in latest mainline

2014-02-16 Thread Theodore Ts'o
On Sun, Feb 16, 2014 at 04:52:37PM +0100, Vegard Nossum wrote: > There seems to be a bug in ext4 where the i_crtime of struct > ext4_inode_info is not initialised, so (some) creation times contain > essentially random values > > I don't know if it's relevant, but the filesystem is actually ext

ext4 info leak in creation times in latest mainline

2014-02-16 Thread Vegard Nossum
Hi, There seems to be a bug in ext4 where the i_crtime of struct ext4_inode_info is not initialised, so (some) creation times contain essentially random values. Here's a report from kmemcheck: [ 92.402035] WARNING: kmemcheck: Caught 64-bit read from uninitialized memory (8800168ab208)