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| author |   Eduard Zingerman <eddyz87@gmail.com> | 2024-04-23 18:28:17 -0700 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2024-04-25 12:42:43 -0700 |
| commit | 1479eaff1f16983d8fda7c5a08a586c21891087d (patch) | |
| tree | 673573b21f8fe60c3aee6bf8fc7461055d858624 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | selftests/bpf: Add ring_buffer__consume_n test. (diff) | |
| download | wireguard-linux-1479eaff1f16983d8fda7c5a08a586c21891087d.tar.xz wireguard-linux-1479eaff1f16983d8fda7c5a08a586c21891087d.zip | |
bpf: mark bpf_dummy_struct_ops.test_1 parameter as nullable
Test case dummy_st_ops/dummy_init_ret_value passes NULL as the first
parameter of the test_1() function. Mark this parameter as nullable to
make verifier aware of such possibility.
Otherwise, NULL check in the test_1() code:
SEC("struct_ops/test_1")
int BPF_PROG(test_1, struct bpf_dummy_ops_state *state)
{
if (!state)
return ...;
... access state ...
}
Might be removed by verifier, thus triggering NULL pointer dereference
under certain conditions.
Reported-by: Jose E. Marchesi <jemarch@gnu.org>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20240424012821.595216-2-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions