panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/main/kernel/sys/net/if_tun.c", line 303
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*187751   2592      0           0  0x4000000    0  syz-executor.7
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8257f2ed) at panic+0x161 sys/kern/subr_prf.c:198
__assert(ffffffff825f2841,ffffffff82622134,12f,ffffffff8260391f) at __assert+0x25 sys/kern/subr_prf.c:157
tun_clone_destroy(ffff800000bd9800) at tun_clone_destroy+0x234 sys/net/if_tun.c:303
if_clone_destroy(ffff80002e933b30) at if_clone_destroy+0x132 sys/net/if.c:1276
sys_ioctl(ffff8000231f7268,ffff80002e933c48,ffff80002e933c90) at sys_ioctl+0x49e
syscall(ffff80002e933d10) at syscall+0x446 sys/arch/amd64/amd64/trap.c:599
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x32a12d99f60, count: 7
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