Hi,
Here is a simple fix to prevent a crash with a function call such as
REGEXP() or REGEXP('abc') when using the icu extension. In both cases, an
unexpectedly short number of arguments causes a crash.
We're using this patch in Chromium. It was reviewed by Scott Hess.
Cheers
Chris
===
--- ext/icu/icu.c.orig 2009-12-16 15:43:51.000000000 -0800
+++ ext/icu/icu.c 2009-12-15 15:23:34.000000000 -0800
@@ -250,12 +250,12 @@
UErrorCode status = U_ZERO_ERROR;
URegularExpression *pExpr;
UBool res;
- const UChar *zString = sqlite3_value_text16(apArg[1]);
+ const UChar *zString;
/* If the left hand side of the regexp operator is NULL,
** then the result is also NULL.
*/
- if( !zString ){
+ if( nArg<2 || !(zString=sqlite3_value_text16(apArg[1])) ){
return;
}
===
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