panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 322 Starting stack trace... panic(ffffffff8344397e) at panic+0x1d0 sys/kern/subr_prf.c:229 __assert(ffffffff833ece19,ffffffff833c257c,142,ffffffff833cc03d) at __assert+0x29 tun_clone_destroy(ffff800001400800) at tun_clone_destroy+0x38a sys/net/if_tun.c:322 if_clone_destroy(ffff80002a473f30) at if_clone_destroy+0x1d7 sys/net/if.c:1389 ifioctl(ffff8000014dbc88,80206979,ffff80002a473f30,ffff80002a309c38) at ifioctl+0x5c5 sys_ioctl(ffff80002a309c38,ffff80002a474110,ffff80002a474060) at sys_ioctl+0x5c3 syscall(ffff80002a474110) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a474110) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1b40de8a930, count: 249 End of stack trace.