Re: KASAN: stack-out-of-bounds Write in read_extent_buffer

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+1d393803acac53c985a0@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         d1db82c9 btrfs: move btrfs_rm_dev_replace_free_srcdev outs..
git tree:       git://github.com/kdave/btrfs-devel.git misc-5.9
kernel config:  https://syzkaller.appspot.com/x/.config?x=7885f44dc5918569
dashboard link: https://syzkaller.appspot.com/bug?extid=1d393803acac53c985a0
compiler:       gcc (GCC) 10.1.0-syz 20200507

Note: testing is done by a robot and is best-effort only.