panic: vref used where vget required (3)

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syzbot

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Dec 27, 2021, 2:54:29 PM12/27/21
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Hello,

syzbot found the following issue on:

HEAD commit: e82b5ebce50c Rework garbage collector for unix(4) sockets.
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=1253cf85b00000
kernel config: https://syzkaller.appspot.com/x/.config?x=bf87b6915a88cd0d
dashboard link: https://syzkaller.appspot.com/bug?extid=f709f5f7bc7623c3559d

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

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+f709f5...@syzkaller.appspotmail.com

panic: vref used where vget required
Starting stack trace...
panic(ffffffff824b1a46) at panic+0x16b sys/kern/subr_prf.c:233
vref(fffffd805df4c210) at vref+0xc7 sys/kern/vfs_subr.c:699
namei(ffff800027b38068) at namei+0x57b sys/kern/vfs_lookup.c:322
vn_open(ffff800027b38068,201,80) at vn_open+0x188 sys/kern/vfs_vnops.c:113
doopenat(ffff800022c8c2b0,ffffff9c,20000040,200,80,ffff800027b38250) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128
syscall(ffff800027b382c0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800027b382c0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x5d14bf30580, count: 250
End of stack trace.


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syzbot

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Mar 27, 2022, 3:54:23 PM3/27/22
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Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
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