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Groups > linux.debian.kernel > #66096

Bug#943398: linux-perf-5.2: perf report segmentation fault

From Salvatore Bonaccorso <carnil@debian.org>
Newsgroups linux.debian.bugs.dist, linux.debian.kernel
Subject Bug#943398: linux-perf-5.2: perf report segmentation fault
Date 2020-01-15 21:20 +0100
Message-ID <zoXiV-6MF-1@gated-at.bofh.it> (permalink)
References (1 earlier) <yUKzf-3BY-3@gated-at.bofh.it> <yUKzf-3BY-3@gated-at.bofh.it> <zohWq-7de-3@gated-at.bofh.it> <yUKzf-3BY-3@gated-at.bofh.it> <zohWq-7de-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

Cross-posted to 2 groups.

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Hi,

On Tue, Jan 14, 2020 at 01:08:02AM +0100, Bernhard Übelacker wrote:
> Dear Maintainer,
> I could reproduce using linux-perf-5.2 and it is
> also visible in linux-perf-5.4 5.4.8-1,
> by just pressing enter.
> 
> The crash happens because in line 3172
> function hist_browser__selected_entry returns
> browser->he_selection, which is at this time a
> null pointer.
> This null pointer gets dereferenced to
> access the res_samples member.
> 
> Upstream seems to have fixed other occourences [1]
> of browser->he_selection being null, but this is
> already contained in 5.4 while a crash still happens.

Can you report the issue directly upstream?

Regards,
Salvatore

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Thread

Bug#943398: linux-perf-5.2: perf report segmentation fault Till Junge <debian.bugreport@cloudmail.altermail.ch> - 2019-10-24 14:40 +0200
  Bug#943398: linux-perf-5.2: perf report segmentation fault Bernhard Übelacker <bernhardu@mailbox.org> - 2020-01-14 01:10 +0100
    Bug#943398: linux-perf-5.2: perf report segmentation fault Salvatore Bonaccorso <carnil@debian.org> - 2020-01-15 21:20 +0100
      Bug#943398: linux-perf-5.2: perf report segmentation fault Bernhard Übelacker <bernhardu@mailbox.org> - 2020-01-20 22:50 +0100
        Bug#943398: linux-perf-5.2: perf report segmentation fault Salvatore Bonaccorso <carnil@debian.org> - 2020-01-21 17:40 +0100
          Bug#943398: linux-perf-5.2: perf report segmentation fault Bernhard Übelacker <bernhardu@mailbox.org> - 2020-01-23 11:10 +0100
  Processed: Re: Bug#943398: linux-perf-5.2: perf report  segmentation fault "Debian Bug Tracking System" <owner@bugs.debian.org> - 2020-01-23 11:10 +0100

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