Messages in this thread | | | Date | Mon, 18 Jan 2016 10:25:35 +0800 | Subject | Re: [PATCH] thermal: cpu_cooling: fix out of bounds access in time_in_idle | From | Nicolas Boichat <> |
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On Fri, Jan 15, 2016 at 11:20 PM, Javi Merino <javi.merino@arm.com> wrote: > Eduardo, Rui, > > On Tue, Jan 05, 2016 at 07:19:25PM +0000, Javi Merino wrote: >> On Mon, Dec 21, 2015 at 08:49:40AM +0530, Viresh Kumar wrote: >> > On 19-12-15, 12:54, Javi Merino wrote: >> > > In __cpufreq_cooling_register() we allocate the arrays for time_in_idle >> > > and time_in_idle_timestamp to be as big as the number of cpus in this >> > > cpufreq device. However, in get_load() we access this array using the >> > > cpu number as index, which can result in an out of bound access. >> > > >> > > Index time_in_idle{,_timestamp} using the index in the cpufreq_device's >> > > allowed_cpus mask, as we do for the load_cpu array in >> > > cpufreq_get_requested_power() >> > > >> > > Reported-by: Nicolas Boichat <drinkcat@chromium.org> >> > > Cc: Amit Daniel Kachhap <amit.kachhap@gmail.com> >> > > Cc: Viresh Kumar <viresh.kumar@linaro.org> >> > > Cc: Zhang Rui <rui.zhang@intel.com> >> > > Cc: Eduardo Valentin <edubezval@gmail.com> >> > > Signed-off-by: Javi Merino <javi.merino@arm.com> >> > > --- >> > > drivers/thermal/cpu_cooling.c | 14 ++++++++------ >> > > 1 file changed, 8 insertions(+), 6 deletions(-) >> > >> > Acked-by: Viresh Kumar <viresh.kumar@linaro.org> >> >> If there are no more objections, can you pick this up? > > Another gentle ping, can this be merged?
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
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