Re: [PATCH] ext4: fix use-after-free race with debug_want_extra_isize

2019-04-18 Thread Jan Kara
On Mon 15-04-19 17:19:45, Barret Rhoden wrote: > When remounting with debug_want_extra_isize, we were not performing the > same checks that we do during a normal mount. That allowed us to set a > value for s_want_extra_isize that reached outside the s_inode_size. > > Reported-by:

[PATCH] ext4: fix use-after-free race with debug_want_extra_isize

2019-04-15 Thread Barret Rhoden
When remounting with debug_want_extra_isize, we were not performing the same checks that we do during a normal mount. That allowed us to set a value for s_want_extra_isize that reached outside the s_inode_size. Reported-by: syzbot+f584efa0ac7213c22...@syzkaller.appspotmail.com Signed-off-by: