From f7abc4c8df8c7930d0b9c56d9abee9a1fca635e9 Mon Sep 17 00:00:00 2001 From: Kumar Kartikeya Dwivedi Date: Tue, 14 Dec 2021 07:18:00 +0530 Subject: selftests/bpf: Fix OOB write in test_verifier The commit referenced below added fixup_map_timer support (to create a BPF map containing timers), but failed to increase the size of the map_fds array, leading to out of bounds write. Fix this by changing MAX_NR_MAPS to 22. Fixes: e60e6962c503 ("selftests/bpf: Add tests for restricted helpers") Signed-off-by: Kumar Kartikeya Dwivedi Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20211214014800.78762-1-memxor@gmail.com --- tools/testing/selftests/bpf/test_verifier.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools/testing') diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c index 465ef3f112c0..d3bf83d5c6cf 100644 --- a/tools/testing/selftests/bpf/test_verifier.c +++ b/tools/testing/selftests/bpf/test_verifier.c @@ -54,7 +54,7 @@ #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 -- cgit