Kategori: Uncategorized
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LKL (Linux Kernel library) libfuzzer
https://github.com/lkl/linux Compile options export FUZZ_CXXFLAGS=”-O2 -fno-omit-frame-pointer -gline-tables-only -fsanitize=address,undefined,fuzzer-no-link” CXX=”clang++ $FUZZ_CXXFLAGS” CC=”clang $FUZZ_CXXFLAGS” make -C tools/lkl -j12 Makefile Simple LKL application that starts the linux kernel
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MALI_NO_MALI
added the Kconfig to the Kconfig file in the “linux/drivers” Note: Go for the real hardware https://developer.arm.com/downloads/-/mali-drivers/valhall-kernel Sources: https://icecream95.gitlab.io/mali-g610-reverse-engineering-part-1.html
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CVE_2022_38181 Mali SAMSUNG S6 Lite Tablet
We flashed the Samsung tablet with the firmware that i downloaded from SAMFW -> P610XXS2CUG5 It’s the Turkish version of the Samsung Galaxy s6 lite SM-P610 I extracted the AP_** file inside the Firmware and extracted the boot.img.lz4 file. Then extracted the boot img lz4 -d boot.img.lz4 Used the bad_io_uring script to extract the kernel…
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YOCTO on beagleboneblack
You must use Ubuntu 18. It won’t compiled on higher distribution. Dependencies Download the yocto Change the machine name and bitbake core-image-full-cmdline Under the sources directory that we added This is the image file that we need to flash core-image-full-cmdline-beaglebone-yocto.wic sudo picocom -b 115200 /dev/ttyUSB0 bitbake -c menuconfig virtual/kernel bitbake -c savedefconfig virtual/kernel vmlinux is…
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How to compile YOCTO project for raspberrypi
Install dependencies Create folder for yocto Pull yocto project Download Raspberry-pi meta data Download mate data for open embedded Run the oe-init-build-env Add the raspberrypi to local.conf change bblayers.conf mine is looking like this under the ./poky/build/conf/bblayers.conf directory start compilation after the successful You can burn the .wic file like this You can find the…
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AFL++
https://github.com/AFLplusplus/AFLplusplus/blob/stable/docs/INSTALL.md afl-gcc-fast -fsanitize=address example.c -o example afl-fuzz -i test -o out -M f0 ./example For master slave hierarcy of afl we can give -M and -S flags like this: afl-fuzz -i test -o out -M f0 ./example afl-fuzz -i test -o out -S f1 ./example Under the our directory masters and slaves will be directorized
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Proces Management and Scheduling
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Analysis of TD-W9960 Router
Download the firmware from the official TP-Link website. The screenshot is Turkish. I’m sorry for that. By Frimware Analysis Tool (FAT) its pretty easy to extract and start the fully emulate the system with qemu It’s successfully booted up For exit from the qemu CTRL+A and press X. In order to run particular executables, we…
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CVE-2022-2588
https://github.com/Markakd/CVE-2022-2588
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CVE-2022-32250 Linux Kernel Vulnerability
Install KVM by following all the steps in the url. https://phoenixnap.com/kb/ubuntu-install-kvm Download Ubuntu 22.04 (Jammy Jellyfish) for KVM https://old-releases.ubuntu.com/releases/ For Downgrading the kernel version we used Mainline Kernel Installer sudo add-apt-repository ppa:cappelikan/ppa sudo apt install mainline Install Linux Kernel 5.15.0-051500-generic During boot, press ESC+Shift for the GNU GRUB Menu Advanced option for Ubuntu Select the…
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Elfloader
We will take a look at this repo: https://github.com/malisal/loaders