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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-03-16 20:42:35 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-03-17 07:59:48 +0000 |
| commit | 60367132a21449c2119f0bb27eef907bc95828af (patch) | |
| tree | cf92a398b9393c9f96f14775be1ba50ab5bcbc15 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | a533b4ba776c16bce53b9739c47409ed3cfe5776 (diff) | |
drm/i915: Avoid use-after-free of ctx in request tracepoints
trace_i915_gem_request_out may be used after the request is completed,
and so the request may have been retired on another thread, invalidating
the rq->ctx. Avoid dereferencing rq->ctx in the tracepoint by switching
to the fence context id instead, updating all tracepoints to match.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170316204235.27786-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions