Cowboy Programming » Debugging Memory Corruption in Game Development
Definition: Memory corruption is an unexpected change in the contents of a memory location. The symptoms of memory corruption can range from hard crashes, all the way through minor glitches, to no symptoms at all. The causes of memory corruption are many and varied, and include memory corruption itself. In this article I attempt to classify the various ways in which memory corruption can man
Exclusive: Japan businessman paid $8.2 million by Tokyo Olympics bid lobbied figure at center of French corruption probe
Exclusive: Japan businessman paid $8.2 million by Tokyo Olympics bid lobbied figure at center of French corruption probe TOKYO/PARIS (Reuters) - A businessman who received millions of dollars for his work on Tokyo’s successful campaign to host the 2020 Olympics, which was postponed last week due to the coronavirus, said he played a key role in securing the support of a former Olympics powerbroker
MySQLのreplication時に起こる、double free or corruption について - 基本へ帰ろう
環境 OS CentOS 6.0 (動作はMac OS X 10.6.8 上の VMWare Fuction) MySQL MySQL-client-5.5.17-1.linux2.6.i386, MySQL-devel-5.5.17-1.linux2.6.i386, MySQL-server-5.5.17-1.linux2.6.i386, MySQL-shared-5.5.17-1.linux2.6.i386 （2011/10/26時点で最新） CPU Intel(R) Core(TM) i7 CPU 870 @ 2.93GHz メモリ 2GB （割り当てメモリ） ※Master, Slave共に同じです。 MySQL設定 Master my.cnf [mysqld] skip-character-set-client-handshake character-set-serve = ut
ヒープコラプションのデバッグ手順 ～ 例外 STATUS_HEAP_CORRUPTION (0xc0000374)
マイクロソフトのフォーラムにて、例外 0xc0000374 でクラッシュする問題が取り上げられていました。 私はスレッドに乗り遅れタイムリーに返信することができなかったのですが、興味があったので試しに動作確認をしてみました。 デバッグの基本のところを含め、簡単に解説します。 この資料では Debugging Tools for Windows はインストールされているものとしていますので、まだお持ちで無い方はインストールしてください。 例外 0xc0000374 でクラッシュする (落ちる) 例外 0xc0000374 は ntstatus.h にて STATUS_HEAP_CORRUPTION、メッセージテキスト "A heap has been corrupted" (ヒープが壊れています) と定義されています。 (日本語メッセージは私が訳してます) すなわち、0xc0000374 で
How to determine and to recover from Winsock2 corruption in Windows Server 2003, in Windows XP, and in Windows Vista - Microsoft Support
Windows Vista Enterprise Windows Vista Enterprise 64-bit Edition Windows Vista Business Windows Vista Business 64-bit Edition Windows Vista Home Basic Windows Vista Home Basic 64-bit Edition Windows Vista Home Premium Windows Vista Home Premium 64-bit Edition Windows Vista Starter Windows Vista Ultimate Windows Vista Ultimate 64-bit Edition Microsoft Windows XP Home Edition Microsoft Windows XP Pr
L’homme fort des JO de Tokyo 2020 mis en examen pour « corruption active »
Live Article se déroulant en direct L’élection présidentielle aux Etats-Unis en direct : les dernières informations sur Donald Trump et Kamala Harris et les réponses à vos questions
2023 Corruption Perceptions Index: Explore the results
The 2023 Corruption Perceptions Index (CPI) shows that corruption is thriving across the world. The CPI ranks 180 countries and territories around the globe by their perceived levels of public sector corruption, scoring on a scale of 0 (highly corrupt) to 100 (very clean). Over two-thirds of countries score below 50 out of 100, which strongly indicates that they have serious corruption problems. T
Transparency International - the global coalition against corruption
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Debugging memory corruption: Who wrote ‘2’ into my stack?!
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Node.js — V8 Memory Corruption and Stack Overflow (fixed in Node v0.8.28 and v0.10.30)
V8 Memory Corruption and Stack Overflow (fixed in Node v0.8.28 and v0.10.30) A memory corruption vulnerability, which results in a denial-of-service, was identified in the versions of V8 that ship with Node.js 0.8 and 0.10. In certain circumstances, a particularly deep recursive workload that may trigger a GC and receive an interrupt may overflow the stack and result in a segmentation fault. For i
Protection against stack-based memory corruption errors using SafeStack · llvm-mirror/llvm@7ffec83
This patch adds the safe stack instrumentation pass to LLVM, which separates the program stack into a safe stack, which stores return addresses, register spills, and local variables that are statically verified to be accessed in a safe way, and the unsafe stack, which stores everything else. Such separation makes it much harder for an attacker to corrupt objects on the safe stack, including functi
How a simple Linux kernel memory corruption bug can lead to complete system compromise
In this case, reallocating the object as one of those three types didn't seem to me like a nice way forward (although it should be possible to exploit this somehow with some effort, e.g. by using count.counter to corrupt the buf field of seq_file). Also, some systems might be using the slab_nomerge kernel command line flag, which disables this merging behavior. Another approach that I didn't look
設計の考え方 - インターフェースと腐敗防止層編 #phpconfuk / Interface and Anti Corruption Layer
2024/06/22 開催の「PHP カンファレンス福岡 2024」（https://phpcon.fukuoka.jp/2024/ ）のトーク資料です。 詳細：https://fortee.jp/phpcon-fukuoka-2024/proposal/25f1e7b5-937f-4de9-a6…
Cazです☆念願のルカ様をお迎えしました☆イラストは夏野 式さんにお借りしました！→http://piapro.jp/content/3eoblr5dczx1hspo背景画像は夢見白猫さんにお借りしました！→http://piapro.jp/content/nl7ibka233ffindgお二人に感謝を！☆JOYSOUND配信中です！★10万再生ありがとうございます！☆歌って下さいました！→mylist/17218692 ありがとうございます☆IKEDAさん制作のPV→sm12284787☆マイリス→mylist/15802367mp3＆カラオケ→http://piapro.jp/content/1hrsumw2w1zpve7etwitter→http://twitter.com/Caz_01FARM RECORDS様より12/15発売のVOCAROCK collection 2 feat
The ability to work at scale is one of the most exciting parts of engineering at Facebook. However, certain fundamental programming challenges inevitably become more difficult with scale. Debugging, for example, can prove difficult even if you can reliably reproduce the problem – and this difficulty increases when debugging a highly visible but nondeterministic issue in a rapidly changing codebase
A scandal over alleged kickbacks has again fuelled public anger at the country's long-ruling party.
Troubleshooting Relay Log Corruption in MySQL
Have you ever seen the replication stopped with message like this: Last_Error: Could not parse relay log event entry. The possible reasons are: the master’s binary log is corrupted (you can check this by running ‘mysqlbinlog’ on the binary log), the slave’s relay log is corrupted (you can check this by running ‘mysqlbinlog’ on the relay log), a network problem, or a bug in the master’s or slave’s
Winning Isn’t Everything: Corruption in Sumo Wrestling
Winning Isn’t Everything: Corruption in Sumo Wrestling By MARK DUGGAN AND STEVEN D. LEVITT* There is a growing appreciation among econ- omists of the need to better understand the role that corruption plays in real-world economies. Although some have argued that it can be wel- fare enhancing (Nathaniel Leff, 1964), most commentators believe that a willingness to ac- cept bribes (or similar forms o
エディット9作目になります。今回は楽曲のみならず、振り込めない詐欺でおなじみのCGPVでも話題を攫ったルカの名曲「Corruption Garden」をエディットさせて頂きました。なにやらターミ・ネータ的終末世界のイメージが浮かんだので、それを下敷きにハードロックバンドのMVみたいな風情を目指して仕上げました。メンバは私得で年長組に。キャプチャはそもろさまです。ありがとうございました！ふんわりSFのバンドPVを楽しんで頂けますと幸いです！そもろさまに譜面をつけて頂きました！→（sm26428977）痺れる本家様（sm9829636）投稿物（mylist/36422093）公式ロダで公開中。ピアプロ音源を使用しています（オンラインID:azureblue-025）無断転載は固くお断りさせて頂きます。
あなたのデータは既に壊れているかもしれない（Silent Data Corruption） - 私家版 ITプロフェッショナルの仕事術
LHC（(Large Hadron Collider、大型ハドロン衝突型加速器）を建設したCERNは、数多くのサーバやディスクで実験データを保存・解析している。いうまでもなくデータの整合性・完全性が非常に重要である。サーバやディスクのデータは本当に大丈夫なのだろうか。そこで、fsprobeというプログラムを作って実験してみた。 fsprobeの処理は非常に単純である。 1MBの既知のビットパターンをディスクに書き込む。これをファイルが2GBになるまで繰り返す。 1MBずつファイルを読んで、書き込んだはずのビットパターンと比較する。これを2GBまで続ける。 この処理を数千台のサーバで数ヶ月にわたって実行したところ、書き込んだはずのパターンが壊れているという事象がいくつも見つかった。3000ノードで5週間走らせたときは、100ノードで500個のエラーが見つかった（参考文献1）。4000ノードで
French police widen corruption investigation to 2016 and 2020 Olympic bids
The Guardian revealed in January that Papa Massata Diack had appeared to arrange for “parcels” to be delivered to six IOC members in 2008 at a time when Qatar was bidding for the 2016 Olympic Games, though it failed to make it beyond the shortlisting stage. Qatar has denied any wrongdoing. The email went on to appear to suggest that six individuals, referred to only by initials but these correspon
runtime: fix corruption crash/race between select and stack growth · golang/go@b902a63
To implement the blocking of a select, a goroutine builds a list of offers to communicate (pseudo-g's, aka sudog), one for each case, queues them on the corresponding channels, and waits for another goroutine to complete one of those cases and wake it up. Obviously it is not OK for two other goroutines to complete multiple cases and both wake the goroutine blocked in select. To make sure that only
Lamine Diack’s son accused as IAAF corruption case widens
“It’s a form of blackmail when you say to someone: ‘Pay or you can’t compete,’” said Houlette. “I don’t know if we can call it a mafia system but it is a system of corruption. It’s extremely serious.” Asked how much Lamine Diack, who stepped down in August after 16 years in the role and was succeeded by Sebastian Coe, is believed to have made, she said: “From what we’ve verified, it is more than €
EXT4 Data Corruption Bug Hits Stable Linux Kernels - Phoronix
EXT4 Data Corruption Bug Hits Stable Linux Kernels Written by Michael Larabel in Linux Storage on 24 October 2012 at 06:06 AM EDT. 68 Comments As a warning for those who are normally quick to upgrade to the latest stable vanilla kernel releases, a serious EXT4 data corruption bug worked its way into the stable Linux 3.4, 3.5, and 3.6 kernel series. Being discussed recently on the Linux kernel mail
Tokyo Olympic Games corruption claims bring scandal back to the IOC | Sean Ingle
Payments for members’ votes were supposed to be a thing of the past at the International Olympic Committee but new allegations will prompt fresh scrutiny Bungs and secret bank accounts; shadowy figures on the take and make; the bidding process for major sporting events shown to be as transparent as an oil slick. The script might appear stale given the numerous tales of scandals and scoundrels at F
Two criminal investigations into corruption at football's world governing body Fifa are under way, with seven top officials arrested in Zurich. The seven are among 14 indicted on corruption charges in a US inquiry, the US Department of Justice said, external. The second criminal case was launched by Swiss prosecutors into the bids for the 2018 and 2022 World Cups, to be held in Russia and Qatar re
EU Commissioner Cecilia Malmstrom: "Price of not acting is too high" The extent of corruption in Europe is "breathtaking" and it costs the EU economy at least 120bn euros (£99bn) annually, the European Commission says. EU Home Affairs Commissioner Cecilia Malmstroem has presented a full report , externalon the problem. She said the true cost of corruption was "probably much higher" than 120bn. Thr
The 2014 Corruption Perceptions Index Measures The Perceived Levels Of Public Sector Corruption In 175 Countries And Territories An error in transferring raw data from the Economist Intelligence Unit to the 2014 CPI computation files affected three countries. In the case of Saint Vincent and Grenadines the CPI score was revised from 67 to 62. The error made it appear that Samoa had the requisite 3
#6886 (uClibc segfault in getaddrinfo() when receiving long IPv6 DNS responses (probably stack corruption)) – OpenWrt
Commands such as "nslookup ipv6.google.com", "ping ipv6.google.com" or "wget httpipv6.google.com/" trigger a segmentation fault with uClibc 0.9.30. Testcase: #include <stdio.h> #include <stdlib.h> #include <netdb.h> #include <netinet/in.h> #include <sys/socket.h> #ifndef NI_MAXHOST #define NI_MAXHOST 1025 #endif int main(int argc, char *argv[]) { struct addrinfo * result; struct addrinfo * res; in
Transparency International - The Global Anti-Corruption Coalition
Why don’t the victims of bribery share in the record-breaking Airbus settlement? Last Friday, French, UK and US authorities announced that Airbus would pay record penalties for foreign bribery. Notably absent in the agreements are any plans to share the penalty payment with the countries where the company was paying bribes. Read More Corruption Perceptions Index 2019 The Corruption Perceptions Ind
There are a couple of issues with OpenSSL’s BIO_*printf() functions, defined in crypto/bio/b_print.c, that are set to be fixed in the forthcoming security release. The function that is primarily responsible for interpreting the format string and transforming this string and the functions arguments to a string is _dopr(). _dopr() scans the format string in an incremental fashion and employs doapr_o
Kazuho@Cybozu Labs: Q4M 0.9.2 prerelease avaiable fixing data corruption on 32bit systems
Thanks to a user of Q4M, I have found a bug that would likely lead to data corruption on 32bit versions of Q4M. 64bit versions are unaffected. Q4M by default uses mmap(2) to read from data files. On 32bit systems, it tries to map max. 1GB per each table into memory using mmap. When mmap fails to map memory due to low memory, Q4M falls back to file I/O to read the data. However there was a bug i
Akira Amari at the World Economic Forum in 2013. Credit: Flickr/ World Economic Forum Reporting by Shukan Bunshun (a weekly tabloid magazine) last week, which alleged Economic Revitalization Minister Akira Amari was involved in a cash-for-favors bribery scandal, led to Japan’s “TPP Chief” resigning from the Cabinet on Thursday. Amari explained, “Out of respect for my duty as a Cabinet member and t
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Dick Pound promises IOC will not derail Tokyo 2020 corruption inquiry
Dick Pound, the veteran IOC member, has said French prosecutors should follow the trail of corruption “wherever it leads” after they confirmed an investigation into alleged seven-figure payments from the successful Tokyo 2020 Olympic bid to a secret account linked to the son of the disgraced former IAAF president Lamine Diack. French prosecutors confirmed they were examining a string of potential
The EXT4 Corruption Bug Is Fixed Written by Michael Larabel in Linux Storage on 31 October 2012 at 12:40 PM EDT. 8 Comments Last week it was discovered an EXT4 file-system corruption bug hit the stable Linux kernel. The true cause of this EXT4 bug has now been uncovered and patched within the mainline Linux kernel. The EXT4 corruption issue was fixed with this commit and Ted Ts'o describes it as:
Please consider subscribing to LWNSubscriptions are the lifeblood of LWN.net. If you appreciate this content and would like to see more of it, your subscription will help to ensure that LWN continues to thrive. Please visit this page to join up and keep LWN on the net. There have been two bugs causing filesystem corruption in the news recently. One of them, a bug in ext4, has gotten the bulk of th
"Manibalan P" <pmanibalan-AT-amiindia.co.in>, Dan Williams <dan.j.williams-AT-intel.com>, Yuri Tikhonov <yur-AT-emcraft.com>, Jes Sorensen <Jes.Sorensen-AT-redhat.com>, stable-AT-vger.kernel.org Hi all, There is a risk of data loss with md/raid6 arrays running on Linux since 2.6.32. If: - the array is doubly degraded - one or both failed devices are being recovered, and - the array is written to t
Giant Leak of Offshore Financial Records Exposes Global Array of Crime and Corruption - ICIJ
Giant Leak of Offshore Financial Records Exposes Global Array of Crime and Corruption Millions of documents show heads of state, criminals and celebrities using secret hideaways in tax havens. A massive leak of documents exposes the offshore holdings of 12 current and former world leaders and reveals how associates of Russian President Vladimir Putin secretly shuffled as much as $2 billion through
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【巡音ルカ】Corruption Garden【オリジナル】
Debugging file corruption on iOS
Japan: Corruption scandal threatens PM Kishida's government
【Project DIVA F2nd】Corruption Garden【editPV】
Fifa corruption inquiries: Officials arrested in Zurich
Corruption across EU 'breathtaking' - EU Commission
CORRUPTION PERCEPTIONS INDEX 2014: RESULTS
OpenSSL CVE-2016-0799: heap corruption via BIO_printf
FPSレボリューション！『Metroid Prime 3: Corruption』海外誌プレビュー | Game*Spark - 国内・海外ゲーム情報サイト
Japan’s ‘TPP Chief’ Resigns Over Corruption Scandal
Beautiful Corruption - mergrim
The EXT4 Corruption Bug Is Fixed - Phoronix
A tale of two data-corruption bugs [LWN.net]
An md/raid6 data corruption bug [LWN.net]