Warning: Permanently added '[localhost]:49181' (RSA) to the list of known hosts.
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bash-4.3$ 
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kernel panic at /syzkaller/managers/main/kernel/kern/include/kref.h:68, from core 2: assertion failed: kref_refcnt(kref) > 0

Stack Backtrace on Core 2:

#01 [<0xffffffffc200a3ac>] in backtrace

#02 [<0xffffffffc2009b3d>] in _panic

#03 [<0xffffffffc200ac1b>] in kfree

#04 [<0xffffffffc2031474>] in kstrdup

#05 [<0xffffffffc20755b3>] in conswrite

#06 [<0xffffffffc207e11e>] in mntversion

#07 [<0xffffffffc207f532>] in mntattach

#08 [<0xffffffffc203f431>] in sysmount

#09 [<0xffffffffc2056581>] in sys_nmount

#10 [<0xffffffffc2059f59>] in syscall

#11 [<0xffffffffc205a124>] in run_local_syscall

#12 [<0xffffffffc205a659>] in prep_syscalls

#13 [<0xffffffffc20ac10a>] in sysenter_callwrapper


Entering Nanwan's Dungeon on Core 2 (Ints on):

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