[PATCH bpf-next] selftests/bpf: Fix map_fds buffer overflow in test_verifier

[Ilya Leoshkevich <iii@xxxxxxxxxxxxx>]

do_test_fixup() accesses map_fds[21], which is out of bounds. Extend
map_fds array to 22 elements.

Fixes: e60e6962c503 ("selftests/bpf: Add tests for restricted helpers")
Signed-off-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx>
---
 tools/testing/selftests/bpf/test_verifier.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c
index b0bd2a1f6d52..76cd903117af 100644
--- a/tools/testing/selftests/bpf/test_verifier.c
+++ b/tools/testing/selftests/bpf/test_verifier.c
@@ -53,7 +53,7 @@
 #define MAX_INSNS	BPF_MAXINSNS
 #define MAX_TEST_INSNS	1000000
 #define MAX_FIXUPS	8
-#define MAX_NR_MAPS	21
+#define MAX_NR_MAPS	22
 #define MAX_TEST_RUNS	8
 #define POINTER_VALUE	0xcafe4all
 #define TEST_DATA_LEN	64
-- 
2.31.1