kernel panic at /syzkaller/managers/main/kernel/kern/include/kref.h:68, from core 0: assertion failed: kref_refcnt(kref) > 0
Stack Backtrace on Core 0:
#01 [<0xffffffffc200aa6c>] in backtrace at src/kdebug.c:235
#02 [<0xffffffffc200a205>] in _panic at src/init.c:275
#03 [<0xffffffffc204996b>] in kref_put at include/kref.h:68
#04 [<     [inline]     >] in proc_decref at src/process.c:591
#04 [<     [inline]     >] in proc_disown_children at src/process.c:857
#04 [<0xffffffffc204d7e0>] in proc_destroy at src/process.c:936
#05 [<0xffffffffc2058f36>] in sys_proc_destroy at src/syscall.c:852
#06 [<0xffffffffc205a249>] in syscall at src/syscall.c:2582
#07 [<0xffffffffc205add8>] in run_local_syscall at src/syscall.c:2619
#08 [<0xffffffffc205b319>] in prep_syscalls at src/syscall.c:2639
#09 [<0xffffffffc20b7a92>] in sysenter_callwrapper at arch/x86/trap.c:932