Fixed use of uninitialized value found by memory sanitizer and reported by @sebpop.

1 files changed, 1 insertions, 0 deletions

diff --git a/gzwrite.c b/gzwrite.c
index 20e1d5c..5b12805 100644
--- a/gzwrite.c
+++ b/gzwrite.c
@@ -26,6 +26,7 @@ static int gz_init(gz_state *state) {
         gz_error(state, Z_MEM_ERROR, "out of memory");
         return -1;
     }
+    memset(state->in, 0, state->want << 1);
 
     /* only need output buffer and deflate state if compressing */
     if (!state->direct) {