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| author | AlexChen <alex.chen@huawei.com> | 2020-11-03 22:53:09 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-11-03 10:15:43 -0500 |
| commit | c59c582d56ee3bbde15e6788c0d28329792b2573 (patch) | |
| tree | b07de13589b876742a213c93aa1415ec7a1ac5fb /tests/qtest/fuzz | |
| parent | 3569a5dfc11f2c4880b7cddd9e0091b29aa0e015 (diff) | |
| download | qemu-c59c582d56ee3bbde15e6788c0d28329792b2573.zip qemu-c59c582d56ee3bbde15e6788c0d28329792b2573.tar.gz qemu-c59c582d56ee3bbde15e6788c0d28329792b2573.tar.bz2 | |
tests/qtest: Fix potential NULL pointer dereference in qos_build_main_args()
In qos_build_main_args(), the pointer 'path' is dereferenced before
checking it is valid, which may lead to NULL pointer dereference.
So move the assignment to 'cmd_line' after checking 'path' is valid.
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Alex Chen <alex.chen@huawei.com>
Message-Id: <5FA16ED5.4000203@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tests/qtest/fuzz')
| -rw-r--r-- | tests/qtest/fuzz/qos_fuzz.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tests/qtest/fuzz/qos_fuzz.c b/tests/qtest/fuzz/qos_fuzz.c index b943577..cee1a2a 100644 --- a/tests/qtest/fuzz/qos_fuzz.c +++ b/tests/qtest/fuzz/qos_fuzz.c @@ -70,7 +70,7 @@ static GString *qos_build_main_args(void) { char **path = fuzz_path_vec; QOSGraphNode *test_node; - GString *cmd_line = g_string_new(path[0]); + GString *cmd_line; void *test_arg; if (!path) { @@ -79,6 +79,7 @@ static GString *qos_build_main_args(void) } /* Before test */ + cmd_line = g_string_new(path[0]); current_path = path; test_node = qos_graph_get_node(path[(g_strv_length(path) - 1)]); test_arg = test_node->u.test.arg; |