panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/main/kernel/sys/net/if_tun.c", line 323 Starting stack trace... panic(ffffffff83377283) at panic+0x1ba sys/kern/subr_prf.c:229 __assert(ffffffff833b672f,ffffffff832f2e2a,143,ffffffff832fd028) at __assert+0x29 sys/kern/subr_prf.c:-1 tun_clone_destroy(ffff8000017c6000) at tun_clone_destroy+0x32d if_clone_destroy(ffff80002f0eb660) at if_clone_destroy+0x1d5 sys/net/if.c:1478 sys_ioctl(ffff80002a7bca78,ffff80002f0eb830,ff ff80002f0eb780) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80002f0eb830) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002f0eb830) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7432e6c06d30, count: 250 End of stack trace. syncing disks...set $lines = 0 set $maxwidth = 0 show panic trace show registers show proc ps show all locks show malloc show all pools machine ddbcpu 0 trace machine ddbcpu 1 trace