witness: reversal: sbufsnd inode

Status: auto-obsoleted due to no activity on 2025/01/18 21:43
Reported-by: syzbot+5f034dbb5104f283e999@syzkaller.appspotmail.com
First crash: 769d, last: 703d
▶ ▼ Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd witness: reversal: sbufsnd inode (3) -1 39 244d 470d 0/4 auto-obsoleted due to no activity on 2026/04/14 02:39
openbsd witness: reversal: sbufsnd inode (2) -1 19 533d 584d 0/4 auto-obsoleted due to no activity on 2025/05/28 20:57
openbsd witness: reversal: sbufsnd inode (4) -1 16 22d 123d 0/4 upstream: reported on 2026/05/23 21:30

Sample crash report:
witness: lock order reversal:
 1st 0xffff80000152d190 sbufsnd (&so->so_snd.sb_lock)
 2nd 0xfffffd807aca90a8 inode (&ip->i_lock)


OpenBSD/amd64 (Amnesiac) (tty00)

login: set $lines = 0
Password:set $maxwidth = 0
Login incorrect
login: show panic
Password:trace
Login incorrect
login: show registers
Password:show proc
Login incorrect
login: ps
Password:show all locks
Login incorrect
show malloc
login: Password:show all pools
Login incorrect
machine ddbcpu 0
login: Password:trace
Login incorrect
machine ddbcpu 1
login: Password:trace
Login incorrect

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/20 21:42 openbsd 10994215a7ed cd6fc0a3 .config console log report ci-openbsd-multicore witness: reversal: sbufsnd inode
2024/08/16 02:58 openbsd 674f03e5c4ec e4bacdaf .config console log report ci-openbsd-multicore witness: reversal: sbufsnd inode
2024/08/16 02:57 openbsd 674f03e5c4ec e4bacdaf .config console log report ci-openbsd-multicore witness: reversal: sbufsnd inode
2024/08/16 02:57 openbsd 674f03e5c4ec e4bacdaf .config console log report ci-openbsd-multicore witness: reversal: sbufsnd inode
* Struck through repros no longer work on HEAD.