diff --git a/Add-digest-list-plugin.patch b/Add-digest-list-plugin.patch
index dc129ea..9298343 100644
--- a/Add-digest-list-plugin.patch
+++ b/Add-digest-list-plugin.patch
@@ -424,7 +424,7 @@ index 0000000..c1864c7
 +		return -EACCES;
 +
 +	/* Check if the signature has already included a header */
-+	hdr_exist = (sig_size - sizeof(sig_hdr) % 128) == 0 ? 0 : 1;
++	hdr_exist = (st.st_size - sizeof(sig_hdr)) % 128 == 0 ? 1 : 0;
 +	if (!hdr_exist) {
 +		ret = fill_pgp_signature_header(te, sig_hdr);
 +		if (ret < 0)
diff --git a/rpm.spec b/rpm.spec
index 83716c9..498d914 100644
--- a/rpm.spec
+++ b/rpm.spec
@@ -1,6 +1,6 @@
 Name:          rpm
 Version:       4.17.0
-Release:       41
+Release:       42
 Summary:       RPM Package Manager
 License:       GPLv2+
 URL:           http://www.rpm.org/
@@ -415,6 +415,9 @@ make check || (cat tests/rpmtests.log; exit 0)
 %{_mandir}/man1/gendiff.1*
 
 %changelog
+* Tue Aug 20 2024 luhuaxin <luhuaxin1@huawei.com> - 4.17.0-42
+- Fix the wrong IMA signature header check
+
 * Mon Aug 19 2024 luhuaxin <luhuaxin1@huawei.com> - 4.17.0-41
 - Fix the judgement of digests count