diff --git a/qemu.spec b/qemu.spec
index dae47b1..c8a5f8b 100644
--- a/qemu.spec
+++ b/qemu.spec
@@ -559,6 +559,7 @@ Patch0546: usbredir-fix-free-call.patch
 Patch0547: vfio-common-Fix-incorrect-address-alignment-in-vfio_.patch
 Patch0548: vfio-common-Add-address-alignment-check-in-vfio_list.patch
 Patch0549: uas-add-stream-number-sanity-checks.patch
+Patch0550: virtio-net-fix-use-after-unmap-free-for-sg.patch
 
 BuildRequires: flex
 BuildRequires: gcc
@@ -963,6 +964,9 @@ getent passwd qemu >/dev/null || \
 %endif
 
 %changelog
+* Sun Sep 26 2021 Chen Qun <kuhn.chenqun@huawei.com>
+- virtio-net: fix use after unmap/free for sg
+
 * Thu Sep 16 2021 Chen Qun <kuhn.chenqun@huawei.com>
 - uas: add stream number sanity checks.