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witness: reversal: sbufrcv inode (3)

Status: upstream: reported on 2026/01/21 19:22
Reported-by: syzbot+cd49212294d49785c00f@syzkaller.appspotmail.com
First crash: 1d15h, last: 16h41m
▶ ▼ Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd witness: reversal: sbufrcv inode -1 2 532d 533d 0/3 auto-obsoleted due to no activity on 2024/11/06 12:44
openbsd witness: reversal: sbufrcv inode (2) -1 13 109d 348d 0/3 auto-obsoleted due to no activity on 2026/01/04 00:01

Sample crash report:
witness: lock order reversal:
 1st 0xffff800010fdd590 sbufrcv (&so->so_rcv.sb_lock)
 2nd 0xfffffd805cd1d900 inode (&ip->i_lock)


OpenBSD/amd64 (ci-openbsd-multicore-7.us-central1-b.c.syzkaller.internal) (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
machine ddbcpu 1
login: Password:
Login incorrect

Crashes (12):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/22 18:03 openbsd 9e4d3748fbc0 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufrcv inode
2026/01/22 04:01 openbsd bf8f984edd8f 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufrcv inode
2026/01/22 02:33 openbsd bf8f984edd8f 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufrcv inode
2026/01/22 01:33 openbsd bf8f984edd8f 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufrcv inode
2026/01/22 01:33 openbsd bf8f984edd8f 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufrcv inode
2026/01/22 00:44 openbsd bf8f984edd8f 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufrcv inode
2026/01/21 22:09 openbsd bf8f984edd8f 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufrcv inode
2026/01/21 21:50 openbsd bf8f984edd8f 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufrcv inode
2026/01/21 20:25 openbsd bf8f984edd8f 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufrcv inode
2026/01/21 19:59 openbsd bf8f984edd8f 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufrcv inode
2026/01/21 19:59 openbsd bf8f984edd8f 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufrcv inode
2026/01/21 19:22 openbsd bf8f984edd8f 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufrcv inode
* Struck through repros no longer work on HEAD.