r0 = signalfd(0xffffffffffffffff, &(0x7f0000000180), 0x8)
ppoll(&(0x7f00000001c0)=[{r0}], 0x1, &(0x7f0000000080)={0x0, 0x3938700}, 0x0, 0x0)
syz_mount_image$ext4(0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)