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[v2,bpf-next,07/11] selftests/bpf: fix invalid memory reads in core_relo selftest

Message ID 20200429012111.277390-8-andriin@fb.com
State Accepted
Delegated to: BPF Maintainers
Headers show
Series Fix libbpf and selftest issues detected by ASAN | expand

Commit Message

Andrii Nakryiko April 29, 2020, 1:21 a.m. UTC
Another one found by AddressSanitizer. input_len is bigger than actually
initialized data size.

Fixes: c7566a69695c ("selftests/bpf: Add field existence CO-RE relocs tests")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
---
 tools/testing/selftests/bpf/prog_tests/core_reloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc.c b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
index 31e177adbdf1..084ed26a7d78 100644
--- a/tools/testing/selftests/bpf/prog_tests/core_reloc.c
+++ b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
@@ -392,7 +392,7 @@  static struct core_reloc_test_case test_cases[] = {
 		.input = STRUCT_TO_CHAR_PTR(core_reloc_existence___minimal) {
 			.a = 42,
 		},
-		.input_len = sizeof(struct core_reloc_existence),
+		.input_len = sizeof(struct core_reloc_existence___minimal),
 		.output = STRUCT_TO_CHAR_PTR(core_reloc_existence_output) {
 			.a_exists = 1,
 			.b_exists = 0,