r0 = syz_open_procfs$userns(0x0, &(0x7f00000003c0))
r1 = dup(r0)
mount_setattr(0xffffffffffffff9c, 0x0, 0x0, &(0x7f0000000040)={0x100007, 0x0, 0x0, {r1}}, 0x20)