ANDROID Qualcomm TrustZone Privilege Escalation Vulnerability (CVE-2016-2432)Android Qualcomm TrustZone Privilege Escalation Vulnerability (CVE-2016-2432)
Release date:Updated on:Affected Systems:
Android Android
Description:
CVE (CAN) ID: CVE-2016-2432Android is a mobile phone operating system based on the Linux open kernel.On Nexus 6 and Android One devices, in versions earlier than Android,
The source of AMSS is actually the underlying Part Of The qc brew (Binary Runtime Environment for wireless) platform, removing the aee (Application Execution Environment) section that provides interfaces for applications, qualcomm uses this architecture on other dual proc chips. Therefore, if you want to understand this set of source, it is necessary to have a basic understanding of brew. You do not need to understand the operating mechanism of its ap
Below isFor Google/Qualcomm.
The BUG_ON macro is clearly written and should not be used easily. If there is any self-made problem in the driver, BUG_ON will be used. Go to the code for the release of the nexus one version, and let's just look at it.
A high level cannot be said, Here (uint16_t)-1 shake cool, there is (~ 0) playing cool; I am an amateur programmer who worships very closely. I wonder if he has a very short time than me?
The following
.
And then remove the Autobackup/restore,
Note that the use Emerg must not be checked for the second download. Host d/l.
Note that you must click Advanced to select the file each time.
After clicking on the SPC, advanced looks like this:
When selecting a file please note: Do not tick the PRI boot Loader and need to add AMSS apps BootLdr Header,amss apps Boot Loader. The following interface is selected:
Note that each download must be selected in this step.
Select the BP file you want to down
Qualcomm 4.4.4 source code in order to block the home button so that it does not respond, in the application layer modification is useless.View the framework layer codeSource file named Phonewindowmanager.java Navigate to a function named interceptkeybeforedispatchingWe can tell from the function name that this function is to intercept before distributing the key event.View the processing of the Keycode_home HOME keyThe key code is as followsWhen the
PrefaceThis article makes an in-depth research on application execute entironment of Qualcomm platform.This helps you understand the application scheduling and resource management mechanisms of the entire BREW Platform.And then develop applications on the Brew platform.I. GlossaryA) brew: Wireless binary operating environmentB) Applet: a scheduling or execution unit in the aee execution environmentC) task: a task at the operating system level.D) Rex:
Android Qualcomm 4.4.4 source code how to shield the Home Key, android4.4.4
If you want to shield the home key from the Qualcomm 4.4.4 source code so that it does not respond, it is useless to modify it at the application layer.
View framework Layer Code
NamePhoneWindowManager. javaSource File
Go to nameInterceptKeyBeforeDispatchingFunctions
From the function name, we can know that this function
, this is another solutionFigure 6 The image recognition coefficient is all 5 stars, the picture has been optimized to become clear, angularOther additional identification chart making instructions:1. Avoid uneven distribution of picture recognition points (Figure 7)2. Avoid identifying the elements in the graph are very round (Figure 8)3. Avoid very regular pattern graphics (Fig. 9)All right, here's how the Qualcomm identification map is handled.Cros
CVE-2016-2502-DRIVERS/USB/GADGET/F_SERIAL.C in the Qualcomm USB driver in Android.Buffer Overflow Vulnerability reported by #plzdonthackme, SOCTT.struct Ioctl_smd_write_arg_type { char *buf; unsigned int size;}; #define Gserial_buf_len 256char smd_write_buf[gserial_buf_len];struct ioctl_smd_write_arg_type smd_write_arg; ... case gserial_smd_write: if (Copy_from_user (smd_write_arg, ARGP, sizeof (SMD_WRITE_A
Eztune prev Client */if ((fds[5].revents pollin) = = Pollin) {if (ez_prev_client_fd > 0) {Mctl_eztune_read_and_proc_cmd (Ez_mctl_prev_socket_cmd);}}}wile (TRUE)End of loop unsubscribe all messagesif (IOCTL (CAM_FD, Vidioc_unsubscribe_event, sub) }Let's take a look at the interface of camera in the hardware abstraction layer:The main point is three:1. Preview: Previewing2. Recording video3. Picture photoModule interface functions:Get_number_of_cameras:get_number_of_cameras,Get_camera_info:get_c
The CPU has 3 architecture:
1) The CPU of the x86 architecture is Intel and AMD two (there are other, but the sales can now be ignored). The main market for desktop notebook servers is large computer devices.
2) ARM architecture CPU has Qualcomm Samsung MTK and so many many home. The main market for embedded devices.
3) MIPS has a long history in 32-bit and 64-bit embedded fields, and has gained a lot of success, but the current adoption rate is the l
The following is an initialization process analysis of the MMC host Controller drive on the Qualcomm 8x50.
Analysis based on kernel version 2.6.29 (the main code is DRIVER/MMC/MSM_SDCC.C and msm_sdcc.h and Arch Code)
1. Types of buses involved in MMC
The code in the MMC directory mainly involves three kinds of buses, one is platform bus, the MMC host controller as a kind of platform device, it is need to register to the platform on.
The other two ar
Androidmanifest.xml merger of Qualcomm AR and Friends League SDKBecause the high-pass AR starts in Android, all active activity is set to high-pass activity, i.e. Android:name= " Com.qualcomm.QCARUnityPlayer.QCARPlayerNativeActivity "The main activity.Delete the main activity in the androidmanifest.xml of friends, copy high-pass main activity and other activity, and Qualcomm-related permissions.XML version=
The Qualcomm platform captures ramdump and uses qcap for parsing, ramdumpqcap
You can use ramdump to analyze whether Qualcomm crashes or finds sleep problems. The specific steps are as follows:
Check that the kernel is configured with CONFIG_MSM_DLOAD_MODE and that download_mode is 1.
Grep-rin CONFIG_MSM_DLOAD_MODE out/target/product/xxxxx/obj/KERNEL_OBJ/. config
Adb shell
Cd/sys
Find-name download_mod
Cat
Qualcomm msm8260 Excellent: high frequency, generally about 30% higher than other brand products during the same period, resulting in improved CPU integer performance. General document processing and daily applications can reflect integer performance.
Lack: 1. Power Consumption. the power consumption of asynchronous dual-core under the 28 nm design should be lower than that of other A9, but the power consumption of 45 nm is higher than that of other A
Qualcomm takes lead as 4g patent holder
Qualcomm looks set to be the leading patent holder in 4G wireless communications after recording 24% of ETSI declarations surrounding LTE, as well as 16% of the 26,000 patents that have potential relevance to 4G technologies generally, including WiMax.
Other notable players in the LTE field include interdigital (18%), Huawei (10%), lg (9%), Nokia (9%) and Samsung (7
According to Reuters September 15, Qualcomm's chief executive predicts that the first 5G mobile phone to meet next-generation mobile standards will be available in the world's major markets in 2019, a year earlier than forecast.Steven Mollenkov, chief executive of Qualcomm, the world's top smartphone chip maker, said in an interview that consumer and business demand is growing, forcing 5G mobile phones to accelerate the popularity of the original 2020
Welcome to follow the pan-Thai non-profit third-party development team VegaDevTeam (this team is composed of syhost suky zhaochengw (z) xuefy (big star) tenfar (R master) loogeo crazyi (snow-free world) windxixi) wangsai008)
Thanks:Tenfar (Master R), zhaochengw (large z), xuefy (big star), suky, wzhy90
Note:
This version is only a test version and is used to test feedback bugs (I have tested it for nearly 10 days.) Because Android 3.4 of the kernel MSM8660 does not support
Qualcomm WiFi androidLayer migration (bcm4329)
Define the location of the kernel module (including the kernel module, firmware, NVRAM, and other kernel modules, such as the sdio driver or USB driver (if it is a USB Nic ))
Hardware/libhardware_legacy/WiFi/wifi. C.
Some Macros in wifi. C can be configured in boardconfig. mk.
Board_wpa_supplicant_driver: = wext
Wifi_driver_module_path: =/system/etc/DHD. Ko
Wifi_driver_module_name: = DHD
Wpa_supplicant_ve
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