Re: [PATCH v2] perf tests: Fix out of bounds memory access

[Leo Yan]

On Thu, Nov 07, 2019 at 10:42:26AM +0100, Jiri Olsa wrote:

[...]

> > To fix this issue, we will use evlist__open() and evlist__close() pair
> > functions to prepare and cleanup context for evlist; so 'evsel->id' and
> > 'evsel->ids' can be initialized properly when invoke do_test() and avoid
> > the out of bounds memory access.
> 
> right, we need to solve this on libperf level, so it's possible
> to call mmap/munmap multiple time without close/open.. I'll try
> to send something, but meanwhile this is good workaround
> 
> Reviewed-by: Jiri Olsa <jolsa@xxxxxxxxxx>

Thanks for reviewing, Jiri.

You are welcome to send us the fixing patches, I am glad to test it on
qemu_arm.

Thanks,
Leo Yan