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authorDmitry Stogov <dmitry@php.net>2011-07-11 09:47:59 +0000
committerDmitry Stogov <dmitry@php.net>2011-07-11 09:47:59 +0000
commit7d1eef4aa7cf05ae0141146a8fc72d12e566a975 (patch)
tree8997ce8166b1af541ad9406cfaefc4474c2f7b23 /main/snprintf.c
parent5d5951f2473f5b0b596540631920fda2ac657160 (diff)
downloadphp-git-7d1eef4aa7cf05ae0141146a8fc72d12e566a975.tar.gz
Fixed bug #54332 (Crash in zend_mm_check_ptr // Heap corruption)
Diffstat (limited to 'main/snprintf.c')
-rw-r--r--main/snprintf.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/main/snprintf.c b/main/snprintf.c
index 30456dd437..76882fc3ca 100644
--- a/main/snprintf.c
+++ b/main/snprintf.c
@@ -497,8 +497,11 @@ char * ap_php_conv_p2(register u_wide_int num, register int nbits, char format,
* NUM_BUF_SIZE is the size of the buffer used for arithmetic conversions
*
* XXX: this is a magic number; do not decrease it
+ * Emax = 1023
+ * NDIG = 320
+ * NUM_BUF_SIZE >= strlen("-") + Emax + strlrn(".") + NDIG + strlen("E+1023") + 1;
*/
-#define NUM_BUF_SIZE 512
+#define NUM_BUF_SIZE 2048
/*