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misc: Fix possible NULL dereference

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thanks oss-fuzz

https://issues.oss-fuzz.com/u/1/issues/482613826
Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Pavol Žáčik <pzacik@redhat.com>
Reviewed-by: Sahana Prasad <sahana@redhat.com>
This commit is contained in:
Jakub Jelen
2026-02-09 10:50:19 +01:00
parent 6a7f19ec34
commit 60ad19c2c8
2 changed files with 43 additions and 5 deletions
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29
tests/client/torture_client_config.c
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@@ -238,6 +238,31 @@ static void torture_client_config_suppress(void **state)
assert_string_equal(s->ssh.session->opts.username, "bob");
}
static void torture_client_config_expand_bad(void **state)
{
ssh_session session = ssh_new();
int ret = 0;
(void)state;
assert_non_null(session);
/* The hash without host fails, but does not crash */
ssh_options_set(session, SSH_OPTIONS_KNOWNHOSTS, "%C");
ret = ssh_options_apply(session);
assert_ssh_return_code_equal(session, ret, SSH_ERROR);
/* The hash without host fails, but does not crash */
ssh_options_set(session, SSH_OPTIONS_HOST, TORTURE_SSH_SERVER);
ssh_options_set(session, SSH_OPTIONS_KNOWNHOSTS, "%C");
ret = ssh_options_apply(session);
assert_ssh_return_code_equal(session, ret, SSH_OK);
ssh_free(session);
}
static void torture_client_config_expand(void **state)
{
struct torture_state *s = *state;
@@ -434,8 +459,9 @@ static void torture_client_config_expand(void **state)
int torture_run_tests(void) {
int rc;
struct CMUnitTest tests[] = {
/* Keep this first -- following setup is changing user to bob, which we
/* Keep these first -- following setup is changing user to bob, which we
* do not want */
cmocka_unit_test(torture_client_config_expand_bad),
cmocka_unit_test_setup_teardown(torture_client_config_expand,
setup_session,
teardown_session),
@@ -453,7 +479,6 @@ int torture_run_tests(void) {
teardown),
};
ssh_init();
torture_filter_tests(tests);
rc = cmocka_run_group_tests(tests, sshd_setup, sshd_teardown);