selftests/bpf: Add a test for ptr_to_map_value on stack for helper access

Browse source

Change bpf_iter_task.c such that pointer to map_value may appear
on the stack for bpf_seq_printf() to access. Without previous
verifier patch, the bpf_iter test will fail.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20201210013350.943985-1-yhs@fb.com

...

This commit is contained in:

Yonghong Song 2020-12-09 17:33:50 -08:00 • committed by Daniel Borkmann

parent cd17d38f8b

commit b4b638c36b

2 changed files with 5 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

3

tools/testing/selftests/bpf/progs/bpf_iter_task.c

View file

5

tools/testing/selftests/bpf/verifier/unpriv.c

View file