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| author | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2021-12-14 07:18:00 +0530 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2021-12-14 15:28:15 +0100 |
| commit | f7abc4c8df8c7930d0b9c56d9abee9a1fca635e9 (patch) | |
| tree | 409ee29ece0bd82e9f67bdecf862d0afe5f1d1d1 /tools | |
| parent | bd0687c18e635b63233dc87f38058cd728802ab4 (diff) | |
| download | linux-f7abc4c8df8c7930d0b9c56d9abee9a1fca635e9.tar.gz | |
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 <memxor@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211214014800.78762-1-memxor@gmail.com
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/bpf/test_verifier.c | 2 |
1 files changed, 1 insertions, 1 deletions
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 |