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Re: perf: fuzzer KASAN slab-out-of-bounds in snb_uncore_imc_event_del

From Dmitry Vyukov <dvyukov@google.com>
Newsgroups linux.kernel
Subject Re: perf: fuzzer KASAN slab-out-of-bounds in snb_uncore_imc_event_del
Date 2016-11-15 15:00 +0100
Message-ID <sDMrf-5C7-13@gated-at.bofh.it> (permalink)
References <sDxiy-43h-11@gated-at.bofh.it> <sDEWJ-Oi-3@gated-at.bofh.it> <sDFg6-1fW-11@gated-at.bofh.it> <sDMrf-5C7-15@gated-at.bofh.it>
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On Tue, Nov 15, 2016 at 2:52 PM, Vince Weaver <vincent.weaver@maine.edu> wrote:
> On Tue, 15 Nov 2016, Dmitry Vyukov wrote:
>
>> If you pipe the report through
>> https://github.com/google/sanitizers/blob/master/address-sanitizer/tools/kasan_symbolize.py
>> it will give you line numbers and inlined frames.
>
> is there any documentation for that program?

the source code...

> If I run the dump through
> it, it removes the timestamps and as far as I can see doesn't do anything
> else.

There are 4 flags:
https://github.com/google/sanitizers/blob/master/address-sanitizer/tools/kasan_symbolize.py#L315

The only important one is --linux which should point to a dir with
vmlinux. Default value is cwd.
Also do you have kernel built with debug info? No debug info, no lines.

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Thread

perf: fuzzer KASAN slab-out-of-bounds in snb_uncore_imc_event_del Vince Weaver <vincent.weaver@maine.edu> - 2016-11-14 22:50 +0100
  Re: perf: fuzzer KASAN slab-out-of-bounds in  snb_uncore_imc_event_del Vince Weaver <vincent.weaver@maine.edu> - 2016-11-15 07:00 +0100
    Re: perf: fuzzer KASAN slab-out-of-bounds in snb_uncore_imc_event_del Dmitry Vyukov <dvyukov@google.com> - 2016-11-15 07:20 +0100
      Re: perf: fuzzer KASAN slab-out-of-bounds in snb_uncore_imc_event_del Dmitry Vyukov <dvyukov@google.com> - 2016-11-15 15:00 +0100
      Re: perf: fuzzer KASAN slab-out-of-bounds in  snb_uncore_imc_event_del Vince Weaver <vincent.weaver@maine.edu> - 2016-11-15 15:00 +0100
    Re: perf: fuzzer KASAN slab-out-of-bounds in snb_uncore_imc_event_del Peter Zijlstra <peterz@infradead.org> - 2016-11-15 15:10 +0100
      RE: perf: fuzzer KASAN slab-out-of-bounds in  snb_uncore_imc_event_del "Liang, Kan" <kan.liang@intel.com> - 2016-11-15 18:10 +0100
        RE: perf: fuzzer KASAN slab-out-of-bounds in  snb_uncore_imc_event_del Vince Weaver <vincent.weaver@maine.edu> - 2016-11-15 18:40 +0100
          RE: perf: fuzzer KASAN slab-out-of-bounds in  snb_uncore_imc_event_del "Liang, Kan" <kan.liang@intel.com> - 2016-11-15 19:20 +0100

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