Re: [PATCH 0/6] fs/minix: fix syzbot bugs and set s_maxbytes

From: Eric Biggers
Date: Tue Jul 07 2020 - 13:14:17 EST


On Sat, Jun 27, 2020 at 11:08:39PM -0700, Eric Biggers wrote:
> This series fixes all syzbot bugs in the minix filesystem:
>
> KASAN: null-ptr-deref Write in get_block
> KASAN: use-after-free Write in get_block
> KASAN: use-after-free Read in get_block
> WARNING in inc_nlink
> KMSAN: uninit-value in get_block
> WARNING in drop_nlink
>
> It also fixes the minix filesystem to set s_maxbytes correctly, so that
> userspace sees the correct behavior when exceeding the max file size.
>
> Al or Andrew: one of you will need to take these patches, since no one
> is maintaining this filesystem.
>

Andrew, any interest in taking these patches?

- Eric