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 [<0xffffffffc200a7fc>] in backtrace at src/kdebug.c:235
#02 [<0xffffffffc2009f95>] in _panic at src/init.c:275
#03 [<0xffffffffc20496db>] in kref_put at include/kref.h:68
#04 [<     [inline]     >] in proc_decref at src/process.c:587
#04 [<     [inline]     >] in proc_disown_children at src/process.c:853
#04 [<0xffffffffc204d520>] in proc_destroy at src/process.c:932
#05 [<0xffffffffc2058c36>] in sys_proc_destroy at src/syscall.c:852
#06 [<0xffffffffc2059f49>] in syscall at src/syscall.c:2582
#07 [<0xffffffffc205aad8>] in run_local_syscall at src/syscall.c:2619
#08 [<0xffffffffc205b019>] in prep_syscalls at src/syscall.c:2639
#09 [<0xffffffffc20b6282>] in sysenter_callwrapper at arch/x86/trap.c:926