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MALLOC_DEBUG: Change fence magic number to be completely different from the freed magic number.

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Race conditions between freeing a nul terminated string and
ast_strdup()'ing it are more likely to be detected if the fence and freed
magic numbers are completely different.
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Merged revisions 398703 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 398721 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 398726 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@398732 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Richard Mudgett
2013-09-09 23:29:44 +00:00
parent 9fb34542d1
commit 35b5549df8
1 changed files with 1 additions and 1 deletions
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main/astmm.c
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@@ -71,7 +71,7 @@ enum func_type {
#undef vasprintf
#undef asprintf
#define FENCE_MAGIC 0xdeadbeef /*!< Allocated memory high/low fence overwrite check. */
#define FENCE_MAGIC 0xfeedbabe /*!< Allocated memory high/low fence overwrite check. */
#define FREED_MAGIC 0xdeaddead /*!< Freed memory wipe filler. */
#define MALLOC_FILLER 0x55 /*!< Malloced memory filler. Must not be zero. */