Add a patch to fix fuzz tests

Add a pending patch to fix fuzz tests hanging infinitely:
https://github.com/smuellerDD/libkcapi/pull/110

Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>

001-fix-fuzz-test.patch

@@ -0,0 +1,37 @@
+From e8c22fe01c6dd46399396694cd1d72a6988dc287 Mon Sep 17 00:00:00 2001
+From: Ondrej Mosnacek <omosnace@redhat.com>
+Date: Sat, 27 Mar 2021 13:46:45 +0100
+Subject: [PATCH] kcapi: Fix hang in fuzz tests with recent kernels
+
+After kernel commit f3c802a1f300 ("crypto: algif_aead - Only wake up
+when..."), the fuzz tests hang indefinitely, because they request more
+output data than the operation can produce. Fix this by requesting at
+most the expected size of the output data.
+
+Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
+---
+ test/kcapi-main.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/test/kcapi-main.c b/test/kcapi-main.c
+index 64e466c..975e8d1 100644
+--- a/test/kcapi-main.c
++++ b/test/kcapi-main.c
+@@ -380,7 +380,7 @@ static int fuzz_cipher(struct kcapi_cavs *cavs_test, unsigned long flags,
+ 	}
+ 
+ 	for (i = 0; i < sizeof(indata); i++) {
+-		unsigned int outlen = sizeof(outdata);
++		unsigned int outlen = i;
+ 		uint8_t *out = outdata;
+ 		uint8_t *iv = indata;
+ 		uint8_t *in = indata;
+@@ -474,7 +474,7 @@ static int fuzz_aead(struct kcapi_cavs *cavs_test, unsigned long flags,
+ 	}
+ 
+ 	for (i = 0; i < sizeof(indata); i++) {
+-		unsigned int outlen = sizeof(outdata);
++		unsigned int outlen = i;
+ 		uint8_t *out = outdata;
+ 		uint8_t *iv = indata;
+ 		uint8_t *in = indata;

libkcapi.spec

@@ -135,6 +135,8 @@ Source1:        https://www.chronox.de/%{name}/%{name}-%{version}.tar.xz.asc
 Source2:        sha512hmac-openssl.sh
 Source3:        fipshmac-openssl.sh
 
+Patch001:       %{giturl}/pull/110.patch#/001-fix-fuzz-test.patch
+
 BuildRequires:  bash
 BuildRequires:  coreutils
 BuildRequires:  gcc
@@ -514,6 +516,7 @@ popd
 - Update to upstream version 1.2.1
 - Remove patch fix MSG_MORE uasge as it is added upstream
 - Remove cppcheck dependency for rhel bz#1931518
+- Add a patch to fix fuzz tests
 
 * Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.0-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild