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-rw-r--r--.gitlab-ci.yml20
-rwxr-xr-xconfigure2
-rw-r--r--qom/qom-hmp-cmds.c6
-rw-r--r--tests/qtest/bios-tables-test.c1
-rw-r--r--tests/qtest/fuzz/fuzz.c13
-rw-r--r--tests/qtest/fuzz/fuzz.h6
-rw-r--r--tests/qtest/fuzz/i440fx_fuzz.c4
-rw-r--r--tests/qtest/fuzz/qos_fuzz.c6
-rw-r--r--tests/qtest/qmp-cmd-test.c13
9 files changed, 52 insertions, 19 deletions
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5eeba2791b..41597c3603 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -161,9 +161,27 @@ build-clang:
     IMAGE: fedora
     CONFIGURE_ARGS: --cc=clang --cxx=clang++
     TARGETS: alpha-softmmu arm-softmmu m68k-softmmu mips64-softmmu
-      ppc-softmmu s390x-softmmu x86_64-softmmu arm-linux-user
+      ppc-softmmu s390x-softmmu arm-linux-user
     MAKE_CHECK_ARGS: check
 
+build-fuzzer:
+  <<: *native_build_job_definition
+  variables:
+    IMAGE: fedora
+  script:
+    - mkdir build
+    - cd build
+    - ../configure --cc=clang --cxx=clang++ --enable-fuzzing
+                   --enable-sanitizers --target-list=x86_64-softmmu
+    - make -j"$JOBS" all check-build x86_64-softmmu/fuzz
+    - make check
+    - for fuzzer in i440fx-qos-fork-fuzz i440fx-qos-noreset-fuzz
+        i440fx-qtest-reboot-fuzz virtio-scsi-flags-fuzz virtio-scsi-fuzz ; do
+          echo Testing ${fuzzer} ... ;
+          x86_64-softmmu/qemu-fuzz-x86_64 --fuzz-target=${fuzzer} -runs=1000
+            || exit 1 ;
+      done
+
 build-tci:
   <<: *native_build_job_definition
   variables:
diff --git a/configure b/configure
index b751c853f5..e93836aaae 100755
--- a/configure
+++ b/configure
@@ -4198,7 +4198,7 @@ pthread_setname_np_wo_tid=no
 cat > $TMPC << EOF
 #include <pthread.h>
 
-static void *f(void *p) { pthread_setname_np("QEMU"); }
+static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
 int main(void)
 {
     pthread_t thread;
diff --git a/qom/qom-hmp-cmds.c b/qom/qom-hmp-cmds.c
index 9ed8bb1c9f..aaacadacca 100644
--- a/qom/qom-hmp-cmds.c
+++ b/qom/qom-hmp-cmds.c
@@ -96,8 +96,10 @@ static void print_qom_composition(Monitor *mon, Object *obj, int indent);
 
 static int qom_composition_compare(const void *a, const void *b, void *ignore)
 {
-    return g_strcmp0(a ? object_get_canonical_path_component(a) : NULL,
-                     b ? object_get_canonical_path_component(b) : NULL);
+    g_autofree char *ac = object_get_canonical_path_component(a);
+    g_autofree char *bc = object_get_canonical_path_component(b);
+
+    return g_strcmp0(ac, bc);
 }
 
 static int insert_qom_composition_child(Object *obj, void *opaque)
diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
index c315156858..d49b3988ec 100644
--- a/tests/qtest/bios-tables-test.c
+++ b/tests/qtest/bios-tables-test.c
@@ -924,6 +924,7 @@ static void test_acpi_tcg_tpm(const char *machine, const char *tpm_if,
     g_free(variant);
     g_free(tmp_path);
     g_free(tmp_dir_name);
+    g_free(args);
     free_test_data(&data);
 #else
     g_test_skip("TPM disabled");
diff --git a/tests/qtest/fuzz/fuzz.c b/tests/qtest/fuzz/fuzz.c
index 0b66e43409..6bc17ef313 100644
--- a/tests/qtest/fuzz/fuzz.c
+++ b/tests/qtest/fuzz/fuzz.c
@@ -199,16 +199,15 @@ int LLVMFuzzerInitialize(int *argc, char ***argv, char ***envp)
     }
 
     /* Run QEMU's softmmu main with the fuzz-target dependent arguments */
-    const char *init_cmdline = fuzz_target->get_init_cmdline(fuzz_target);
-    init_cmdline = g_strdup_printf("%s -qtest /dev/null -qtest-log %s",
-                                   init_cmdline,
-                                   getenv("QTEST_LOG") ? "/dev/fd/2"
-                                                       : "/dev/null");
-
+    GString *cmd_line = fuzz_target->get_init_cmdline(fuzz_target);
+    g_string_append_printf(cmd_line,
+                           " -qtest /dev/null -qtest-log %s",
+                           getenv("QTEST_LOG") ? "/dev/fd/2" : "/dev/null");
 
     /* Split the runcmd into an argv and argc */
     wordexp_t result;
-    wordexp(init_cmdline, &result, 0);
+    wordexp(cmd_line->str, &result, 0);
+    g_string_free(cmd_line, true);
 
     qemu_init(result.we_wordc, result.we_wordv, NULL);
 
diff --git a/tests/qtest/fuzz/fuzz.h b/tests/qtest/fuzz/fuzz.h
index 72d5710f6c..9ca3d107c5 100644
--- a/tests/qtest/fuzz/fuzz.h
+++ b/tests/qtest/fuzz/fuzz.h
@@ -50,10 +50,10 @@ typedef struct FuzzTarget {
 
 
     /*
-     * returns the arg-list that is passed to qemu/softmmu init()
-     * Cannot be NULL
+     * Returns the arguments that are passed to qemu/softmmu init(). Freed by
+     * the caller.
      */
-    const char* (*get_init_cmdline)(struct FuzzTarget *);
+    GString *(*get_init_cmdline)(struct FuzzTarget *);
 
     /*
      * will run once, prior to running qemu/softmmu init.
diff --git a/tests/qtest/fuzz/i440fx_fuzz.c b/tests/qtest/fuzz/i440fx_fuzz.c
index e2f31e56f9..bf966d478b 100644
--- a/tests/qtest/fuzz/i440fx_fuzz.c
+++ b/tests/qtest/fuzz/i440fx_fuzz.c
@@ -158,9 +158,9 @@ static void i440fx_fuzz_qos_fork(QTestState *s,
 
 static const char *i440fx_qtest_argv = TARGET_NAME " -machine accel=qtest"
                                        " -m 0 -display none";
-static const char *i440fx_argv(FuzzTarget *t)
+static GString *i440fx_argv(FuzzTarget *t)
 {
-    return i440fx_qtest_argv;
+    return g_string_new(i440fx_qtest_argv);
 }
 
 static void fork_init(void)
diff --git a/tests/qtest/fuzz/qos_fuzz.c b/tests/qtest/fuzz/qos_fuzz.c
index 0c68f5361f..d52f3ebd83 100644
--- a/tests/qtest/fuzz/qos_fuzz.c
+++ b/tests/qtest/fuzz/qos_fuzz.c
@@ -66,7 +66,7 @@ void *qos_allocate_objects(QTestState *qts, QGuestAllocator **p_alloc)
     return allocate_objects(qts, current_path + 1, p_alloc);
 }
 
-static const char *qos_build_main_args(void)
+static GString *qos_build_main_args(void)
 {
     char **path = fuzz_path_vec;
     QOSGraphNode *test_node;
@@ -88,7 +88,7 @@ static const char *qos_build_main_args(void)
     /* Prepend the arguments that we need */
     g_string_prepend(cmd_line,
             TARGET_NAME " -display none -machine accel=qtest -m 64 ");
-    return cmd_line->str;
+    return cmd_line;
 }
 
 /*
@@ -189,7 +189,7 @@ static void walk_path(QOSGraphNode *orig_path, int len)
     g_free(path_str);
 }
 
-static const char *qos_get_cmdline(FuzzTarget *t)
+static GString *qos_get_cmdline(FuzzTarget *t)
 {
     /*
      * Set a global variable that we use to identify the qos_path for our
diff --git a/tests/qtest/qmp-cmd-test.c b/tests/qtest/qmp-cmd-test.c
index c68f99f659..f7b1aa7fdc 100644
--- a/tests/qtest/qmp-cmd-test.c
+++ b/tests/qtest/qmp-cmd-test.c
@@ -230,6 +230,8 @@ static void test_object_add_failure_modes(void)
                      " 'props': {'size': 1048576 } } }");
     g_assert_nonnull(resp);
     g_assert(qdict_haskey(resp, "return"));
+    qobject_unref(resp);
+
     resp = qtest_qmp(qts, "{'execute': 'object-add', 'arguments':"
                      " {'qom-type': 'memory-backend-ram', 'id': 'ram1',"
                      " 'props': {'size': 1048576 } } }");
@@ -241,6 +243,7 @@ static void test_object_add_failure_modes(void)
                      " {'id': 'ram1' } }");
     g_assert_nonnull(resp);
     g_assert(qdict_haskey(resp, "return"));
+    qobject_unref(resp);
 
     /* attempt to create an object with a property of a wrong type */
     resp = qtest_qmp(qts, "{'execute': 'object-add', 'arguments':"
@@ -249,17 +252,20 @@ static void test_object_add_failure_modes(void)
     g_assert_nonnull(resp);
     /* now do it right */
     qmp_assert_error_class(resp, "GenericError");
+
     resp = qtest_qmp(qts, "{'execute': 'object-add', 'arguments':"
                      " {'qom-type': 'memory-backend-ram', 'id': 'ram1',"
                      " 'props': {'size': 1048576 } } }");
     g_assert_nonnull(resp);
     g_assert(qdict_haskey(resp, "return"));
+    qobject_unref(resp);
 
     /* delete ram1 object */
     resp = qtest_qmp(qts, "{'execute': 'object-del', 'arguments':"
                      " {'id': 'ram1' } }");
     g_assert_nonnull(resp);
     g_assert(qdict_haskey(resp, "return"));
+    qobject_unref(resp);
 
     /* attempt to create an object without the id */
     resp = qtest_qmp(qts, "{'execute': 'object-add', 'arguments':"
@@ -267,18 +273,21 @@ static void test_object_add_failure_modes(void)
                      " 'props': {'size': 1048576 } } }");
     g_assert_nonnull(resp);
     qmp_assert_error_class(resp, "GenericError");
+
     /* now do it right */
     resp = qtest_qmp(qts, "{'execute': 'object-add', 'arguments':"
                      " {'qom-type': 'memory-backend-ram', 'id': 'ram1',"
                      " 'props': {'size': 1048576 } } }");
     g_assert_nonnull(resp);
     g_assert(qdict_haskey(resp, "return"));
+    qobject_unref(resp);
 
     /* delete ram1 object */
     resp = qtest_qmp(qts, "{'execute': 'object-del', 'arguments':"
                      " {'id': 'ram1' } }");
     g_assert_nonnull(resp);
     g_assert(qdict_haskey(resp, "return"));
+    qobject_unref(resp);
 
     /* attempt to set a non existing property */
     resp = qtest_qmp(qts, "{'execute': 'object-add', 'arguments':"
@@ -286,23 +295,27 @@ static void test_object_add_failure_modes(void)
                      " 'props': {'sized': 1048576 } } }");
     g_assert_nonnull(resp);
     qmp_assert_error_class(resp, "GenericError");
+
     /* now do it right */
     resp = qtest_qmp(qts, "{'execute': 'object-add', 'arguments':"
                      " {'qom-type': 'memory-backend-ram', 'id': 'ram1',"
                      " 'props': {'size': 1048576 } } }");
     g_assert_nonnull(resp);
     g_assert(qdict_haskey(resp, "return"));
+    qobject_unref(resp);
 
     /* delete ram1 object without id */
     resp = qtest_qmp(qts, "{'execute': 'object-del', 'arguments':"
                      " {'ida': 'ram1' } }");
     g_assert_nonnull(resp);
+    qobject_unref(resp);
 
     /* delete ram1 object */
     resp = qtest_qmp(qts, "{'execute': 'object-del', 'arguments':"
                      " {'id': 'ram1' } }");
     g_assert_nonnull(resp);
     g_assert(qdict_haskey(resp, "return"));
+    qobject_unref(resp);
 
     /* delete ram1 object that does not exist anymore*/
     resp = qtest_qmp(qts, "{'execute': 'object-del', 'arguments':"