![]() ![]() In the same GNU library i also found fortifyfail. So this code simply calls fortifyfail with argument smash the stack. I am trying to figure out why my app crashes with stack smashing detected when I try to play a mp4 file. Only users with topic management privileges can see it. I do not use the begin variable anywhere else so I dont see what the issue is. I found this source code form GNU C Library at debug/stackchkfail.c Even you can find it from this link. /dbw terminated Backtrace: /lib/tls/i686/cmov/libc.so.6(fortifyfail 0x50)0x82f390 /lib/tls/. QtMultimedia 5.5, mp4 playing crashes stack smashing detected. In this tutorial, we will explore a defense mechanism against stack overflows, namely the stack canary. The two most prominent issues which can cause stack smashing are 1) to write/over-allocate too much data in a given part of the stack, thereby overwriting another part of the stack, and 2) where some external source (malicious or not) overwrote another program’s stack, though this is much less common. It doesnt make much sense to me because those 3 lines are just extracting the first 14 characters of the line variable to the begin variable and then checking if the begin variable equals "Recieved: from". For ( x = strlen(word) x != -1 x- ) word = '\0' Ĭhar line, filenumber, begin, IP, domain ĭlist *current, *curIP, *list, *listIP, *temp įor ( curIP = listIP curIP != NULL curIP = curIP->next ) I should also note that my program executes perfectly fine and everything works all the way to the end at which point it gives me the stack smashing error. Stack Smashing here is actually caused due to a protection mechanism used by gcc to detect buffer overflow errors. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |