24 lines
837 B
Diff
24 lines
837 B
Diff
commit 880db7a8dbed226d638b3a48aa1a3996f8624911
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Author: Eric Anholt <eric@anholt.net>
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Date: Wed Sep 10 14:22:49 2008 -0700
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drm: Avoid oops in GEM execbuffers with bad arguments.
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Signed-off-by: Eric Anholt <eric@anholt.net>
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diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
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index 5fe5034..29d9d21 100644
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--- a/drivers/gpu/drm/i915/i915_gem.c
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+++ b/drivers/gpu/drm/i915/i915_gem.c
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@@ -1763,6 +1763,10 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
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(int) args->buffers_ptr, args->buffer_count, args->batch_len);
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#endif
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+ if (args->buffer_count < 1) {
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+ DRM_ERROR("execbuf with %d buffers\n", args->buffer_count);
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+ return -EINVAL;
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+ }
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/* Copy in the exec list from userland */
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exec_list = drm_calloc(sizeof(*exec_list), args->buffer_count,
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DRM_MEM_DRIVER);
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