diff --git a/lib/842/842_compress.c b/lib/842/842_compress.c
index c02baa4168e1..2044ad14fd6f 100644
--- a/lib/842/842_compress.c
+++ b/lib/842/842_compress.c
@@ -478,6 +478,9 @@ int sw842_compress(const u8 *in, unsigned int ilen,
 		   u8 *out, unsigned int *olen, void *wmem)
 {
 	struct sw842_param *p = (struct sw842_param *)wmem;
+	// Zero-initialize the entire structure to prevent uninitialized fields
+    memset(p, 0, sizeof(*p));
+
 	int ret;
 	u64 last, next, pad, total;
 	u8 repeat_count = 0;