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* Fixed an error in the realloc() function in mapmalloc.c that sometimes

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caused memory to be overwritten because memcpy(new, old, size) was called
  with the size of 'new' if 'new' was larger than 'old'.
This commit is contained in:
Gunnar Ritter
2005-02-17 20:38:02 +00:00
parent 6afc996872
commit ebbbfc8bd2
2 changed files with 5 additions and 2 deletions
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4
mapmalloc.c
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@@ -5,7 +5,7 @@
* September 2001.
*/
/* Sccsid @(#)mapmalloc.c 1.14 (gritter) 11/26/04 */
/* Sccsid @(#)mapmalloc.c 1.15 (gritter) 2/17/05 */
/* ====================================================================
* Copyright (c) 1999-2000 Ralf S. Engelschall. All rights reserved.
@@ -508,7 +508,7 @@ realloc(char *ptr, size_t usize)
}
if ((vp = malloc(usize)) == NULL)
return NULL;
memcpy(vp, ptr, usize);
memcpy(vp, ptr, mc->mc_usize);
free(ptr);
return vp;
}