diff options
author | Andrii Nakryiko | 2020-12-04 15:20:01 -0800 |
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committer | Daniel Borkmann | 2020-12-08 16:45:20 +0100 |
commit | 932c60558109a9131e54dacfda6070147fd1cdfb (patch) | |
tree | 24ed6d809f01b4212f5e4525b307a3902a29b1b2 /lib | |
parent | e3366884b383073a7edc1bad9634412ae0a22d4e (diff) |
tools/bpftool: Fix PID fetching with a lot of results
In case of having so many PID results that they don't fit into a singe page
(4096) bytes, bpftool will erroneously conclude that it got corrupted data due
to 4096 not being a multiple of struct pid_iter_entry, so the last entry will
be partially truncated. Fix this by sizing the buffer to fit exactly N entries
with no truncation in the middle of record.
Fixes: d53dee3fe013 ("tools/bpftool: Show info for processes holding BPF map/prog/link/btf FDs")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20201204232002.3589803-1-andrii@kernel.org
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions