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(parent: cd17d38) | patch
selftests/bpf: Add a test for ptr_to_map_value on stack for helper access
authorYonghong Song <yhs@fb.com>
Thu, 10 Dec 2020 01:33:50 +0000 (17:33 -0800)
committerDaniel Borkmann <daniel@iogearbox.net>
Mon, 14 Dec 2020 20:50:10 +0000 (21:50 +0100)
commitb4b638c36b7e7acd847b9c4b9c80f268e45ea30c
treee57bb1465df207af5c0987249b17c66606ca5e70tree | snapshot
parentcd17d38f8b28f808c368121041c0a4fa91757e0dcommit | diff
selftests/bpf: Add a test for ptr_to_map_value on stack for helper access

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
tools/testing/selftests/bpf/progs/bpf_iter_task.c diff | blob | blame | history
tools/testing/selftests/bpf/verifier/unpriv.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)