kernel panic at /syzkaller/managers/main/kernel/kern/include/kref.h:68, from core 3: assertion failed: kref_refcnt(kref) > 0
Stack Backtrace on Core 3:
#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 [<0xffffffffc203d6ae>] in bindmount at src/ns/sysfile.c:446
#16 [<0xffffffffc203d856>] in sysbind at src/ns/sysfile.c:474
#17 [<0xffffffffc205668e>] in sys_nbind at src/syscall.c:2191
#18 [<0xffffffffc205a319>] in syscall at src/syscall.c:2496
#19 [<0xffffffffc205a4f8>] in run_local_syscall at src/syscall.c:2531
#20 [<0xffffffffc205aa39>] in prep_syscalls at src/syscall.c:2551