prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x0, 0x0, &(0x7f0000000040))
syz_mount_image$iso9660(0x0, 0x0, 0x0, 0x1, &(0x7f0000000240)=[{0x0}], 0x0, 0x0)