-
name of the current banch and nothing else (for automation)
git rev-parse --abbrev-ref HEAD
-
all commits that your branch have that are not yet in master
git log master..<HERE_COMES_YOUR_BRANCH_NAME>
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/* | |
* (un)comment correct payload first (x86 or x64)! | |
* | |
* $ gcc cowroot.c -o cowroot -pthread | |
* $ ./cowroot | |
* DirtyCow root privilege escalation | |
* Backing up /usr/bin/passwd.. to /tmp/bak | |
* Size of binary: 57048 | |
* Racing, this may take a while.. | |
* /usr/bin/passwd overwritten |
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/* | |
* CVE-2016-5195 dirtypoc | |
* | |
* This PoC is memory only and doesn't write anything on the filesystem. | |
* /!\ Beware, it triggers a kernel crash a few minutes. | |
* | |
* gcc -Wall -o dirtycow-mem dirtycow-mem.c -ldl -lpthread | |
*/ | |
#define _GNU_SOURCE |
This script sets up your Git environment by creating/setting several common aliases and shortcuts for them.
Memory Optimization (Christer Ericson, GDC 2003)
http://realtimecollisiondetection.net/pubs/GDC03_Ericson_Memory_Optimization.ppt
Cache coherency primer (Fabian Giesen)
https://fgiesen.wordpress.com/2014/07/07/cache-coherency/
Code Clinic 2015: How to Write Code the Compiler Can Actually Optimize (Mike Acton)
http://gdcvault.com/play/1021866/Code-Clinic-2015-How-to
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Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
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# -------- | |
# Hardware | |
# -------- | |
# Opcode - operational code | |
# Assebly mnemonic - abbreviation for an operation | |
# Instruction Code Format (IA-32) | |
# - Optional instruction prefix | |
# - Operational code |
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#!/usr/bin/env bash | |
set -Eeuo pipefail | |
trap cleanup SIGINT SIGTERM ERR EXIT | |
script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P) | |
usage() { | |
cat <<EOF | |
Usage: $(basename "${BASH_SOURCE[0]}") [-h] [-v] [-f] -p param_value arg1 [arg2...] |