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(ffffffff8345433a) at panic+0x1d0 sys/kern/subr_prf.c:229 __assert(ffffffff83402f1e,ffffffff833d5af3,142,ffffffff833df616) at __assert+0x29 sys/kern/subr_prf.c:-1 tun_clone_destroy(ffff80000142f800) at tun_clone_destroy+0x38a sys/net/if_tun.c:322 if_clone_destroy(ffff80003c434400) at if_clone_destroy+0x1d7 sys/net/if.c:1389 ifioctl(ffff8000014df150,80206979,ffff80003c434400,ffff80003c4434b8) at ifioctl+0x5c5 sys/net/if.c:-1 sys_ioctl(ffff80003c4434b8,ffff80003c4345e0,ffff80003c434530) at sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 syscall(ffff80003c4345e0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4345e0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76e51d8fdd30, count: 249 End of stack trace.