panic: vput: ref cnt (3)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: a71bcab410b6 sync dma-resv with linux 6.18
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=175c01d6580000
kernel config: https://syzkaller.appspot.com/x/.config?x=1bc15e68cd2a49e5
dashboard link: https://syzkaller.appspot.com/bug?extid=70b46ffae2ce359e32e3

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/7c3c0eca9adc/disk-a71bcab4.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/0f26dc3f5105/bsd-a71bcab4.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/2247f7b41a32/kernel-a71bcab4.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+70b46f...@syzkaller.appspotmail.com

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.
syncing disks...
set $lines = 0
set $maxwidth = 0
show panic
trace
show registers
show proc
ps
show all locks
show malloc
show all pools
machine ddbcpu 0
trace
machine ddbcpu 1
trace


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