kernel panic at /syzkaller/managers/main/kernel/kern/include/kref.h:68, from core 1: assertion failed: kref_refcnt(kref) > 0
Stack Backtrace on Core 1:
#01 [<0xffffffffc200a38c>] in backtrace at src/kdebug.c:229
#02 [<0xffffffffc2009b25>] in _panic at src/init.c:267
#03 [<0xffffffffc203115b>] in kref_put at include/kref.h:68
#04 [<0xffffffffc2031828>] in cclose at src/ns/chan.c:334
#05 [<0xffffffffc2033251>] in walk_symlink at src/ns/chan.c:1703
#06 [<0xffffffffc203323c>] in walk_symlink at src/ns/chan.c:1701
#07 [<0xffffffffc203323c>] in walk_symlink at src/ns/chan.c:1701
#08 [<0xffffffffc203323c>] in walk_symlink at src/ns/chan.c:1701
#09 [<0xffffffffc203323c>] in walk_symlink at src/ns/chan.c:1701
#10 [<0xffffffffc203323c>] in walk_symlink at src/ns/chan.c:1701
#11 [<0xffffffffc203323c>] in walk_symlink at src/ns/chan.c:1701
#12 [<0xffffffffc2032d52>] in walk at src/ns/chan.c:872
#13 [<0xffffffffc2033429>] in __namec_from at src/ns/chan.c:1139
#14 [<0xffffffffc2034013>] in namec at src/ns/chan.c:1517
#15 [<0xffffffffc203e3b3>] in __dir_stat at src/ns/sysfile.c:1219
#16 [<0xffffffffc203e48e>] in sysdirlstat at src/ns/sysfile.c:1239
#17 [<0xffffffffc2058ab4>] in sys_readlink at src/syscall.c:1960
#18 [<0xffffffffc205a019>] in syscall at src/syscall.c:2465
#19 [<0xffffffffc205a1f8>] in run_local_syscall at src/syscall.c:2500
#20 [<0xffffffffc205a739>] in prep_syscalls at src/syscall.c:2520
kernel panic at kern/drivers/dev/mnt.c:1120, from core 0: rpc tags
Stack Backtrace on Core 0:
#01 [<0xffffffffc200a38c>] in backtrace at src/kdebug.c:229
#02 [<0xffffffffc2009b25>] in _panic at src/init.c:267
#03 [<0xffffffffc207ecca>] in mntralloc at drivers/dev/mnt.c:1120
#04 [<0xffffffffc207ed73>] in mntflushalloc at drivers/dev/mnt.c:1047
#05 [<0xffffffffc207f210>] in mountio at drivers/dev/mnt.c:845
#06 [<0xffffffffc207f305>] in mountrpc at drivers/dev/mnt.c:778
#07 [<0xffffffffc207fe38>] in mntopencreate at drivers/dev/mnt.c:563
#08 [<0xffffffffc207ff98>] in mntopen at drivers/dev/mnt.c:580
#09 [<0xffffffffc2033830>] in __namec_from at src/ns/chan.c:1233
#10 [<0xffffffffc2034013>] in namec at src/ns/chan.c:1517
#11 [<0xffffffffc20413e6>] in sysopenat at src/ns/sysfile.c:592
#12 [<0xffffffffc205940f>] in sys_openat at src/syscall.c:1724
#13 [<0xffffffffc205a019>] in syscall at src/syscall.c:2465
#14 [<0xffffffffc205a1f8>] in run_local_syscall at src/syscall.c:2500
#15 [<0xffffffffc205a739>] in prep_syscalls at src/syscall.c:2520
#16 [<0xffffffffc20abee2>] in sysenter_callwrapper at arch/x86/trap.c:854