witness: reversal: sbufsnd inode (3)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: a3912f8462f6 Validate fields of the NCM transfer headers p..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=138b260c580000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=33baec04e0ac2123f367

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/d5bd1b78e357/disk-a3912f84.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/44dd809d5bf3/bsd-a3912f84.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/dfffe40c1652/kernel-a3912f84.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+33baec...@syzkaller.appspotmail.com

witness: lock order reversal:
1st 0xffff8000014c64d8 sbufsnd (&so->so_snd.sb_lock)
2nd 0xfffffd806edcc1d8 inode (&ip->i_lock)
SYZFAIL: failed to recv rpc
fd=3 want=4 recv=0 n=-1 (errno 54: Connection reset by peer)
56. &,53(: /"*=08&&&&&$806%1%&610, /&&3%4=083&&000. %22/2 $52).' 0!'%/54.
56. &,53(: : #(!.'%3 4/ 0!'% -!9 "% ,/34!

OpenBSD/amd64 (Amnesiac) (tty00)

login: set $maxwidth = 0
Password:
Login incorrect
login: trace
Password:
Login incorrect
login: show proc
Password:
Login incorrect
login: show all locks
Password:
Login incorrect
show all pools
login: Password:


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