syzbot


panic: vput: ref cnt (3)

Status: upstream: reported on 2026/03/21 05:04
Reported-by: syzbot+70b46ffae2ce359e32e3@syzkaller.appspotmail.com
First crash: 8d02h, last: 8d02h
Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd panic: vput: ref cnt 2 C 6 2419d 2420d 3/3 fixed on 2019/08/15 14:16
openbsd panic: vput: ref cnt (2) 2 1 612d 612d 0/3 auto-obsoleted due to no activity on 2024/10/23 01:21

Sample crash report:
panic: vput: ref cnt
Starting stack trace...
panic(ffffffff8347b413) at panic+0x1ba sys/kern/subr_prf.c:229
vput(fffffd806c3d7458) at vput+0x1d0 sys/kern/vfs_subr.c:774
VOP_REMOVE(fffffd805eee4a38,fffffd806c3d7458,ffff80002a859498) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336
dounlinkat(ffff80002a747760,ffffff9c,71548edf9cb0,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923
syscall(ffff80002a859600) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a859600) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x71548edfa160, count: 251
End of stack trace.
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Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/03/21 05:03 openbsd a71bcab410b6 5b92003d .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main panic: vput: ref cnt
* Struck through repros no longer work on HEAD.