diff --git a/fs/smb/client/fs_context.c b/fs/smb/client/fs_context.c
index ca39d01077cd..b9a47dd5db63 100644
--- a/fs/smb/client/fs_context.c
+++ b/fs/smb/client/fs_context.c
@@ -1078,11 +1078,11 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
 		ctx->got_wsize = true;
 		break;
 	case Opt_acregmax:
-		ctx->acregmax = HZ * result.uint_32;
-		if (ctx->acregmax > CIFS_MAX_ACTIMEO) {
+		if (result.uint_32 > CIFS_MAX_ACTIMEO / HZ) {
 			cifs_errorf(fc, "acregmax too large\n");
 			goto cifs_parse_mount_err;
 		}
+		ctx->acregmax = HZ * result.uint_32;
 		break;
 	case Opt_acdirmax:
 		ctx->acdirmax = HZ * result.uint_32;