On Mon, Nov 8, 2021 at 12:39 AM Yafang Shao [off-list ref] wrote:

bpf_probe_read_kernel_str() will add a nul terminator to the dst, then
we don't care about if the dst size is big enough. This patch also
replaces the hard-coded 16 with TASK_COMM_LEN to make it adopt to task
comm size change.

Signed-off-by: Yafang Shao <redacted>
Reviewed-by: Kees Cook <redacted>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Arnaldo Carvalho de Melo <redacted>
Cc: Alexei Starovoitov <redacted>
Cc: Andrii Nakryiko <redacted>
Cc: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: David Hildenbrand <redacted>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Kees Cook <redacted>
Cc: Petr Mladek <pmladek@suse.com>
---

LGTM.

Acked-by: Andrii Nakryiko <andrii@kernel.org>

 samples/bpf/offwaketime_kern.c          |  4 ++--
 samples/bpf/test_overhead_kprobe_kern.c | 11 ++++++-----
 samples/bpf/test_overhead_tp_kern.c     |  5 +++--
 3 files changed, 11 insertions(+), 9 deletions(-)

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