diff mbox series

[bpf-next,v3,2/2] selftests/bpf: Add malloc failure checks in bpf_iter

Message ID DB3PR10MB6835F0ECA792265FA41FC39BE8A3A@DB3PR10MB6835.EURPRD10.PROD.OUTLOOK.COM (mailing list archive)
State Accepted
Commit bf4a64b9323f181df8aba32d66cb37b9fa5df959
Headers show
Series selftests/bpf: Replaces CHECK macros and adds malloc failure checks to bpf_iter | expand

Commit Message

Yuran Pereira Oct. 28, 2023, 5:24 a.m. UTC
Since some malloc calls in bpf_iter may at times fail,
this patch adds the appropriate fail checks, and ensures that
any previously allocated resource is appropriately destroyed
before returning the function.

Signed-off-by: Yuran Pereira <yuran.pereira@hotmail.com>
---
 tools/testing/selftests/bpf/prog_tests/bpf_iter.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

Comments

Yonghong Song Oct. 29, 2023, 5:07 p.m. UTC | #1
On 10/27/23 10:24 PM, Yuran Pereira wrote:
> Since some malloc calls in bpf_iter may at times fail,
> this patch adds the appropriate fail checks, and ensures that
> any previously allocated resource is appropriately destroyed
> before returning the function.
>
> Signed-off-by: Yuran Pereira <yuran.pereira@hotmail.com>

Acked-by: Yonghong Song <yonghong.song@linux.dev>
Kui-Feng Lee Oct. 30, 2023, 7:39 p.m. UTC | #2
Acked-by: Kui-Feng Lee <thinker.li@gmail.com>

On 10/27/23 22:24, Yuran Pereira wrote:
> Since some malloc calls in bpf_iter may at times fail,
> this patch adds the appropriate fail checks, and ensures that
> any previously allocated resource is appropriately destroyed
> before returning the function.
> 
> Signed-off-by: Yuran Pereira <yuran.pereira@hotmail.com>
> ---
>   tools/testing/selftests/bpf/prog_tests/bpf_iter.c | 6 +++++-
>   1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
> index 123a3502b8f0..1e02d1ba1c18 100644
> --- a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
> +++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
> @@ -698,7 +698,7 @@ static void test_overflow(bool test_e2big_overflow, bool ret1)
>   		goto free_link;
>   
>   	buf = malloc(expected_read_len);
> -	if (!buf)
> +	if (!ASSERT_OK_PTR(buf, "malloc"))
>   		goto close_iter;
>   
>   	/* do read */
> @@ -868,6 +868,8 @@ static void test_bpf_percpu_hash_map(void)
>   
>   	skel->rodata->num_cpus = bpf_num_possible_cpus();
>   	val = malloc(8 * bpf_num_possible_cpus());
> +	if (!ASSERT_OK_PTR(val, "malloc"))
> +		goto out;
>   
>   	err = bpf_iter_bpf_percpu_hash_map__load(skel);
>   	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_percpu_hash_map__load"))
> @@ -1044,6 +1046,8 @@ static void test_bpf_percpu_array_map(void)
>   
>   	skel->rodata->num_cpus = bpf_num_possible_cpus();
>   	val = malloc(8 * bpf_num_possible_cpus());
> +	if (!ASSERT_OK_PTR(val, "malloc"))
> +		goto out;
>   
>   	err = bpf_iter_bpf_percpu_array_map__load(skel);
>   	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_percpu_array_map__load"))
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
index 123a3502b8f0..1e02d1ba1c18 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
@@ -698,7 +698,7 @@  static void test_overflow(bool test_e2big_overflow, bool ret1)
 		goto free_link;
 
 	buf = malloc(expected_read_len);
-	if (!buf)
+	if (!ASSERT_OK_PTR(buf, "malloc"))
 		goto close_iter;
 
 	/* do read */
@@ -868,6 +868,8 @@  static void test_bpf_percpu_hash_map(void)
 
 	skel->rodata->num_cpus = bpf_num_possible_cpus();
 	val = malloc(8 * bpf_num_possible_cpus());
+	if (!ASSERT_OK_PTR(val, "malloc"))
+		goto out;
 
 	err = bpf_iter_bpf_percpu_hash_map__load(skel);
 	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_percpu_hash_map__load"))
@@ -1044,6 +1046,8 @@  static void test_bpf_percpu_array_map(void)
 
 	skel->rodata->num_cpus = bpf_num_possible_cpus();
 	val = malloc(8 * bpf_num_possible_cpus());
+	if (!ASSERT_OK_PTR(val, "malloc"))
+		goto out;
 
 	err = bpf_iter_bpf_percpu_array_map__load(skel);
 	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_percpu_array_map__load"))