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Prevent stack overflow in query-type functions.

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The tsquery, ltxtquery and query_int data types have a common ancestor.
Having acquired check_stack_depth() calls independently, each was
missing at least one call.  Back-patch to 9.0 (all supported versions).
This commit is contained in:
Noah Misch
2015-10-05 10:06:30 -04:00
parent 30cb12881d
commit 5976097c0f
4 changed files with 13 additions and 0 deletions
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3
contrib/ltree/ltxtquery_io.c
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@ -416,6 +416,9 @@ while( ( (inf)->cur - (inf)->buf ) + (addsize) + 1 >= (inf)->buflen ) \
static void
infix(INFIX *in, bool first)
{
/* since this function recurses, it could be driven to stack overflow. */
check_stack_depth();
if (in->curpol->type == VAL)
{
char *op = in->op + in->curpol->distance;