diff --git a/crypto/scompress.c b/crypto/scompress.c
index 15641c96ff997f3c651269bae59996c9c477b761..5f3fb6cbf531c95ac5a7bf4eb58eaee07d4f679a 100644
--- a/crypto/scompress.c
+++ b/crypto/scompress.c
@@ -149,6 +149,7 @@ static int scomp_acomp_comp_decomp(struct acomp_req *req, int dir)
 	const int cpu = get_cpu();
 	u8 *scratch_src = *per_cpu_ptr(scomp_src_scratches, cpu);
 	u8 *scratch_dst = *per_cpu_ptr(scomp_dst_scratches, cpu);
+	unsigned int dlen;
 	int ret;
 
 	if (!req->src || !req->slen || req->slen > SCOMP_SCRATCH_SIZE) {
@@ -164,6 +165,8 @@ static int scomp_acomp_comp_decomp(struct acomp_req *req, int dir)
 	if (!req->dlen || req->dlen > SCOMP_SCRATCH_SIZE)
 		req->dlen = SCOMP_SCRATCH_SIZE;
 
+	dlen = req->dlen;
+
 	scatterwalk_map_and_copy(scratch_src, req->src, 0, req->slen, 0);
 	if (dir)
 		ret = crypto_scomp_compress(scomp, scratch_src, req->slen,
@@ -178,6 +181,9 @@ static int scomp_acomp_comp_decomp(struct acomp_req *req, int dir)
 				ret = -ENOMEM;
 				goto out;
 			}
+		} else if (req->dlen > dlen) {
+			ret = -ENOSPC;
+			goto out;
 		}
 		scatterwalk_map_and_copy(scratch_dst, req->dst, 0, req->dlen,
 					 1);