syzbot


witness: reversal: sbufsnd inode (3)

Status: upstream: reported on 2025/06/11 00:46
Reported-by: syzbot+33baec04e0ac2123f367@syzkaller.appspotmail.com
First crash: 162d, last: 12d
Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd witness: reversal: sbufsnd inode (2) -1 19 225d 276d 0/3 auto-obsoleted due to no activity on 2025/05/28 20:57
openbsd witness: reversal: sbufsnd inode -1 4 395d 461d 0/3 auto-obsoleted due to no activity on 2025/01/18 21:43

Sample crash report:
witness: lock order reversal:
 1st 0xffff80000163e890 sbufsnd (&so->so_snd.sb_lock)
 2nd 0xfffffd80631f8240 inode (&ip->i_lock)
SYZFAIL: failed to recv rpc
fd=3 want=4 recv=0 n=-1 (errno 54: Connection reset by peer)
uvn_flush: obj=0xfffffd8077b736b0, offset=0x3ff000.  error during pageout.
uvn_flush: WARNING: changes to page may be lost!

Crashes (10):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/11/08 10:47 openbsd f09b465a1938 4e1406b4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufsnd inode
2025/11/03 18:27 openbsd 0214ec5c7fc4 e6c64ba8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufsnd inode
2025/10/25 11:01 openbsd 710ece6a621e c0460fcd .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufsnd inode
2025/10/25 09:27 openbsd 710ece6a621e c0460fcd .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufsnd inode
2025/10/24 12:17 openbsd f7635e2c043a c0460fcd .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufsnd inode
2025/08/25 20:43 openbsd 4f8e478bcc72 bf27483f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufsnd inode
2025/07/24 22:37 openbsd 24bd93804efe 3cda49cf .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufsnd inode
2025/07/10 01:51 openbsd e91e1a12e0dd 956bd956 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufsnd inode
2025/06/13 05:33 openbsd 97ee8abe534f 98683f8f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: reversal: sbufsnd inode
2025/06/11 00:45 openbsd a3912f8462f6 5d7e17ca .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.