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| author | Tan Xiaojun <[email protected]> | 2017-02-23 06:04:39 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2017-02-24 07:56:33 +0000 |
| commit | 1572e45a924f254d9570093abde46430c3172e3d (patch) | |
| tree | da2db02ffa3c27b9d5d8b26c67773c7b4baf6edb /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | perf/core: Fix perf_event_enable_on_exec() timekeeping (again) (diff) | |
| download | kernel-1572e45a924f254d9570093abde46430c3172e3d.tar.gz kernel-1572e45a924f254d9570093abde46430c3172e3d.zip | |
perf/core: Fix the perf_cpu_time_max_percent check
Use "proc_dointvec_minmax" instead of "proc_dointvec" to check the input
value from user-space.
If not, we can set a big value and some vars will overflow like
"sysctl_perf_event_sample_rate" which will cause a lot of unexpected
problems.
Signed-off-by: Tan Xiaojun <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Vince Weaver <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions