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Overflow check

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This commit is contained in:
Dmitry Stogov
2016-11-17 13:17:34 +03:00
parent 5e001c34ec
commit d4b3f89c53
1 changed files with 6 additions and 1 deletions
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7
ext/opcache/zend_accelerator_module.c
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@@ -107,6 +107,8 @@ static ZEND_INI_MH(OnUpdateMemoryConsumption)
#else
char *base = (char *) ts_resource(*((int *) mh_arg2));
#endif
zend_long overflow;
double dummy;
/* keep the compiler happy */
(void)entry; (void)mh_arg2; (void)mh_arg3; (void)stage;
@@ -130,7 +132,10 @@ static ZEND_INI_MH(OnUpdateMemoryConsumption)
ini_entry->value = zend_string_init(new_new_value, 1, 1);
}
*p = memsize * (1024 * 1024);
ZEND_SIGNED_MULTIPLY_LONG(memsize, 1024 * 1024, *p, dummy, overflow);
if (UNEXPECTED(overflow)) {
*p = ZEND_ULONG_MAX;
}
return SUCCESS;
}