Messages in this thread | | | Date | Tue, 19 May 2020 17:09:58 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] kasan: Disable branch tracing for core runtime |
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On Tue, 19 May 2020 23:05:46 +0200 Andrey Konovalov <andreyknvl@google.com> wrote:
> On Tue, May 19, 2020 at 8:25 PM Marco Elver <elver@google.com> wrote: > > > > During early boot, while KASAN is not yet initialized, it is possible to > > enter reporting code-path and end up in kasan_report(). While > > uninitialized, the branch there prevents generating any reports, > > however, under certain circumstances when branches are being traced > > (TRACE_BRANCH_PROFILING), we may recurse deep enough to cause kernel > > reboots without warning. > > > > To prevent similar issues in future, we should disable branch tracing > > for the core runtime. > > > > ... > > Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Thanks, I queued this for 5.7.
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