commit 2333419cd76cb9ae5f15c9b240b16a2052b27691
author Mark Adler <fork@madler.net> Mon Jun 27 12:15:36 2022 -0700
committer Mark Adler <fork@madler.net> Mon Jun 27 12:20:04 2022 -0700
tree aab26c6ddd32d6d8775e6f31c7b82d449e56349e
parent 7ecf7c7458578d05a20fa481436dd5c58db112f7

Fix inflateBack to detect invalid input with distances too far.

infback.c

diff --git a/infback.c b/infback.c
index a390c58..4c712a1 100644
--- a/infback.c
+++ b/infback.c
@@ -66,6 +66,7 @@
     state->window = window;
     state->wnext = 0;
     state->whave = 0;
+    state->sane = 1;
     return Z_OK;
 }