Re: WARNING in __proc_create (2)

[Dan Carpenter]

On Tue, Jan 21, 2020 at 03:56:08PM -0800, syzbot wrote:
> Hello,
> 
> syzbot found the following crash on:
> 
> HEAD commit:    d96d875e Merge tag 'fixes_for_v5.5-rc8' of git://git.kerne..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=13b7b80de00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=83c00afca9cf5153
> dashboard link: https://syzkaller.appspot.com/bug?extid=b904ba7c947a37b4b291
> compiler:       clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12c96185e00000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14f859c9e00000
> 
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+b904ba7c947a37b4b291@xxxxxxxxxxxxxxxxxxxxxxxxx
> 
> ------------[ cut here ]------------
> name 'ïï/]uwo,"ï cïacïïïïï[ï $ï5x~ïsï&ïtw}ïïïz ïcp ('
          ^

Hi David,

We should probably ban '/' characters from the cell name in
afs_alloc_cell().

regards,
dan carpenter