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| author | Stanislav Fomichev <sdf@google.com> | 2019-01-16 14:03:16 -0800 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-01-17 16:42:35 +0100 |
| commit | 4af396ae4836c4ecab61e975b8e61270c551894d (patch) | |
| tree | 3ea744486f9d9c3582f038e5a04d0aac47812e3d /tools | |
| parent | 0b698005a9d11c0e91141ec11a2c4918a129f703 (diff) | |
bpf: zero out build_id for BPF_STACK_BUILD_ID_IP
When returning BPF_STACK_BUILD_ID_IP from stack_map_get_build_id_offset,
make sure that build_id field is empty. Since we are using percpu
free list, there is a possibility that we might reuse some previous
bpf_stack_build_id with non-zero build_id.
Fixes: 615755a77b24 ("bpf: extend stackmap to save binary_build_id+offset instead of address")
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions