syzbot


witness: reversal: sbufsnd inode (2)

Status: upstream: reported on 2025/02/16 16:01
Reported-by: syzbot+1be12bd88b5b1508ddd5@syzkaller.appspotmail.com
First crash: 6d05h, last: 10h46m
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd witness: reversal: sbufsnd inode 4 124d 190d 0/3 auto-obsoleted due to no activity on 2025/01/18 21:43

Sample crash report:
login: witness: lock order reversal:
 1st 0xffff800010fdfcb0 sbufsnd (&so->so_snd.sb_lock)
 2nd 0xfffffd806ddc9500 inode (&ip->i_lock)
SYZFAIL: failed to recv rpc
fd=3 want=4 recv=0 n=-1 (errno 54: Connection reset by peer)


OpenBSD/amd64 (Amnesiac) (tty00)

login: set $lines = 0
Password:
Login incorrect
login: show panic
Password:
Login incorrect
login: show registers
Password:
Login incorrect
login: ps
Password:
Login incorrect
show malloc
login: Password:
Login incorrect
machine ddbcpu 0
login: Password:
Login incorrect

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/22 10:31 openbsd 45a541306066 d34966d1 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufsnd inode
2025/02/19 08:58 openbsd 181c8b93219b 9a14138f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufsnd inode
2025/02/18 18:51 openbsd 6065620d7782 c37c7249 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufsnd inode
2025/02/16 16:00 openbsd 3411e7e2a484 40a34ec9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufsnd inode
* Struck through repros no longer work on HEAD.