Fix a potential NULL pointer deref in the testing logic of pcache1.

NB: The -DSQLITE_TEST compile-time option is needed to hit the problem.

FossilOrigin-Name: f5580f08538636ffb1367e717a33756288ccddde

1 files changed, 1 insertions, 1 deletions

diff --git a/src/pcache1.c b/src/pcache1.c
index 1beb66d73..00a0205f5 100644
--- a/src/pcache1.c
+++ b/src/pcache1.c
@@ -1223,7 +1223,7 @@ void sqlite3PcacheStats(
 ){
   PgHdr1 *p;
   int nRecyclable = 0;
-  for(p=pcache1.grp.lru.pLruNext; !p->isAnchor; p=p->pLruNext){
+  for(p=pcache1.grp.lru.pLruNext; p && !p->isAnchor; p=p->pLruNext){
     assert( p->isPinned==0 );
     nRecyclable++;
   }