Re: [PATCH v3 0/3] tracing: Fix the parser when processing strings w/ or w/o terminated '\0'

Namhyung Kim
2018-01-17T02:38:46Z

On Tue, Jan 16, 2018 at 05:02:27PM +0800, changbin.du@intel.com wrote:
> From: Changbin Du <changbin.du@intel.com>
>
> I found there are some problems in the tracing parser when I investiage the root
> cause of issues mentioned in below patch.
> https://patchwork.kernel.org/patch/10132953/
>
> This serials can fix them.
>
> v3: Polish commit msg from Steven Rostedt.
> v2:
> - Drop 1 old patch and add a new one.
> - Stop parsing when '\0' found.
>
> Changbin Du (3):
> tracing: detect the string termination character when parsing user
> input string
> tracing: clear parser->idx if parser gets nothing
> tracing: make sure the parsed string always terminates with '\0'

Acked-by: Namhyung Kim <namhyung@kernel.org>

Thanks,
Namhyung

>
> kernel/trace/ftrace.c | 2 --
> kernel/trace/trace.c | 14 +++++++-------
> kernel/trace/trace_events.c | 2 --
> 3 files changed, 7 insertions(+), 11 deletions(-)
>
> --
> 2.7.4
>
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