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authorLorenz Bauer <lmb@cloudflare.com>2019-05-08 17:49:32 +0100
committerAlexei Starovoitov <ast@kernel.org>2019-05-09 15:53:56 -0700
commit07b619919d3d5401adc9bc6b79dcf12cc2c6d485 (patch)
tree7592791ba5b9f6bd2dbdb17b0537f4eb0df23b43 /tools/testing
parent494bc1d281b5a9f02a81249fa566d8c7e390c50c (diff)
downloadlinux-07b619919d3d5401adc9bc6b79dcf12cc2c6d485.tar.bz2
selftests: bpf: initialize bpf_object pointers where needed
There are a few tests which call bpf_object__close on uninitialized bpf_object*, which may segfault. Explicitly zero-initialise these pointers to avoid this. Signed-off-by: Lorenz Bauer <lmb@cloudflare.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing')
-rw-r--r--tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c2
-rw-r--r--tools/testing/selftests/bpf/prog_tests/task_fd_query_tp.c2
-rw-r--r--tools/testing/selftests/bpf/prog_tests/tp_attach_query.c3
3 files changed, 5 insertions, 2 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c b/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c
index 23b159d95c3f..b74e2f6e96d0 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c
@@ -15,7 +15,7 @@ static int libbpf_debug_print(enum libbpf_print_level level,
static int check_load(const char *file)
{
struct bpf_prog_load_attr attr;
- struct bpf_object *obj;
+ struct bpf_object *obj = NULL;
int err, prog_fd;
memset(&attr, 0, sizeof(struct bpf_prog_load_attr));
diff --git a/tools/testing/selftests/bpf/prog_tests/task_fd_query_tp.c b/tools/testing/selftests/bpf/prog_tests/task_fd_query_tp.c
index d636a4f39476..f9b70e81682b 100644
--- a/tools/testing/selftests/bpf/prog_tests/task_fd_query_tp.c
+++ b/tools/testing/selftests/bpf/prog_tests/task_fd_query_tp.c
@@ -9,7 +9,7 @@ static void test_task_fd_query_tp_core(const char *probe_name,
struct perf_event_attr attr = {};
__u64 probe_offset, probe_addr;
__u32 len, prog_id, fd_type;
- struct bpf_object *obj;
+ struct bpf_object *obj = NULL;
__u32 duration = 0;
char buf[256];
diff --git a/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c b/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c
index a2f476f91637..fb095e5cd9af 100644
--- a/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c
+++ b/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c
@@ -13,6 +13,9 @@ void test_tp_attach_query(void)
struct bpf_prog_info prog_info;
char buf[256];
+ for (i = 0; i < num_progs; i++)
+ obj[i] = NULL;
+
snprintf(buf, sizeof(buf),
"/sys/kernel/debug/tracing/events/sched/sched_switch/id");
efd = open(buf, O_RDONLY, 0);