Re: KASAN: slab-out-of-bounds Read in default_write_copy_kernel

syzbot has bisected this bug to: commit 65766ee0bf7fe8b3be80e2e1c3ef54ad59b29476 Author: Takashi Iwai Date: Fri Nov 9 10:59:45 2018 + ALSA: oss: Use kvzalloc() for local buffer allocations bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11c3005d20 start commit: 657

KASAN: slab-out-of-bounds Read in default_write_copy_kernel

Hello, syzbot found the following crash on: HEAD commit:7c98a4261827 Merge tag 'ceph-for-4.20-rc4' of https://gith.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=142c889340 kernel config: https://syzkaller.appspot.com/x/.config?x=73e2bc0cb6463446 da