linux-kernel - Re: [PATCH 56/63] perf tests: Fix out of bounds memory access

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Message-ID: <20191216162027.GA2227094@kroah.com>
Date:   Mon, 16 Dec 2019 17:20:27 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Naresh Kamboju <naresh.kamboju@...aro.org>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Sasha Levin <sashal@...nel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Clark Williams <williams@...hat.com>,
        open list <linux-kernel@...r.kernel.org>,
        linux-perf-users@...r.kernel.org, Leo Yan <leo.yan@...aro.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Mark Rutland <mark.rutland@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Wang Nan <wangnan0@...wei.com>,
        linux- stable <stable@...r.kernel.org>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        lkft-triage@...ts.linaro.org
Subject: Re: [PATCH 56/63] perf tests: Fix out of bounds memory access

On Mon, Dec 16, 2019 at 09:37:02PM +0530, Naresh Kamboju wrote:
> This patch merged into stable-rc tree and perf build failed on OE for
> Linaro builds for 5.3, 4.19, 4.14 and 4.9.
> Please find build error logs here,
> 
> tests/backward-ring-buffer.c: In function 'test__backward_ring_buffer':
> tests/backward-ring-buffer.c:147:2: warning: implicit declaration of
> function 'evlist__close'; did you mean 'perf_evlist__close'?
> [-Wimplicit-function-declaration]
>   evlist__close(evlist);
>   ^~~~~~~~~~~~~
>   perf_evlist__close
> tests/backward-ring-buffer.c:147:2: warning: nested extern declaration
> of 'evlist__close' [-Wnested-externs]
> tests/backward-ring-buffer.c:149:8: warning: implicit declaration of
> function 'evlist__open'; did you mean 'perf_evlist__open'?
> [-Wimplicit-function-declaration]
>   err = evlist__open(evlist);
>         ^~~~~~~~~~~~
>         perf_evlist__open
> tests/backward-ring-buffer.c:149:8: warning: nested extern declaration
> of 'evlist__open' [-Wnested-externs]
> perf/1.0-r9/recipe-sysroot/usr/lib/python2.7/config/libpython2.7.a(posixmodule.o):
> In function `posix_tmpnam':
> /usr/src/debug/python/2.7.15-r1/Python-2.7.15/Modules/posixmodule.c:7648:
> warning: the use of `tmpnam_r' is dangerous, better use `mkstemp'
> perf/1.0-r9/recipe-sysroot/usr/lib/python2.7/config/libpython2.7.a(posixmodule.o):
> In function `posix_tempnam':
> /usr/src/debug/python/2.7.15-r1/Python-2.7.15/Modules/posixmodule.c:7595:
> warning: the use of `tempnam' is dangerous, better use `mkstemp'
> perf/1.0-r9/perf-1.0/perf-in.o: In function `test__backward_ring_buffer':
> perf/1.0-r9/perf-1.0/tools/perf/tests/backward-ring-buffer.c:147:
> undefined reference to `evlist__close'
> perf/1.0-r9/perf-1.0/tools/perf/tests/backward-ring-buffer.c:149:
> undefined reference to `evlist__open'
> 
> Full log can be found at,
> https://ci.linaro.org/view/lkft/job/openembedded-lkft-linux-stable-rc-5.3/DISTRO=lkft,MACHINE=hikey,label=docker-lkft/72/consoleText
> https://ci.linaro.org/view/lkft/job/openembedded-lkft-linux-stable-rc-4.19/DISTRO=lkft,MACHINE=intel-corei7-64,label=docker-lkft/378/consoleText
> https://ci.linaro.org/view/lkft/job/openembedded-lkft-linux-stable-rc-4.14/DISTRO=lkft,MACHINE=intel-corei7-64,label=docker-lkft/675/consoleText
> https://ci.linaro.org/view/lkft/job/openembedded-lkft-linux-stable-rc-4.9/DISTRO=lkft,MACHINE=intel-corei7-64,label=docker-lkft/753/consoleText
> 

Good catch, thanks, I'll go drop it from all of these queues.

greg k-h