This is a note to let you know that I've just added the patch titled selftests/bpf: Fix memory leak in test_ima to the 5.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: selftests-bpf-fix-memory-leak-in-test_ima.patch and it can be found in the queue-5.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit e2a028db7bbdba52018b50be81d70be9447ff061 Author: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx> Date: Thu Oct 28 12:05:01 2021 +0530 selftests/bpf: Fix memory leak in test_ima [ Upstream commit efadf2ad17a2d5dc90bda4e6e8b2f96af4c62dae ] The allocated ring buffer is never freed, do so in the cleanup path. Fixes: f446b570ac7e ("bpf/selftests: Update the IMA test to use BPF ring buffer") Signed-off-by: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx> Signed-off-by: Alexei Starovoitov <ast@xxxxxxxxxx> Acked-by: Andrii Nakryiko <andrii@xxxxxxxxxx> Acked-by: Song Liu <songliubraving@xxxxxx> Link: https://lore.kernel.org/bpf/20211028063501.2239335-9-memxor@xxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/tools/testing/selftests/bpf/prog_tests/test_ima.c b/tools/testing/selftests/bpf/prog_tests/test_ima.c index 0252f61d611a9..97d8a6f84f4ab 100644 --- a/tools/testing/selftests/bpf/prog_tests/test_ima.c +++ b/tools/testing/selftests/bpf/prog_tests/test_ima.c @@ -43,7 +43,7 @@ static int process_sample(void *ctx, void *data, size_t len) void test_test_ima(void) { char measured_dir_template[] = "/tmp/ima_measuredXXXXXX"; - struct ring_buffer *ringbuf; + struct ring_buffer *ringbuf = NULL; const char *measured_dir; char cmd[256]; @@ -85,5 +85,6 @@ close_clean: err = system(cmd); CHECK(err, "failed to run command", "%s, errno = %d\n", cmd, errno); close_prog: + ring_buffer__free(ringbuf); ima__destroy(skel); }