panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 316 Starting stack trace... panic(ffffffff833751de) at panic+0x1d0 sys/kern/subr_prf.c:229 __assert(ffffffff833b16f1,ffffffff833febd3,13c,ffffffff832f2918) at __assert+0x29 sys/kern/subr_prf.c:-1 tun_clone_destroy(ffff80000147f800) at tun_clone_destroy+0x38a if_clone_destroy(ffff80003c457b30) at if_clone_destroy+0x1d5 sys/net/if.c:1389 ifioctl(ffff8000014e3858,80206979,ffff80003c457b30,ffff80002a35efc0) at ifioctl+0x59d sys/net/if.c:2066 sys_ioctl(ffff80002a35efc0,ffff80003c457d10,ffff80003c457c60) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c457d10) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c457d10) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x765b9824bd30, count: 249 End of stack trace.