2016-12-02 10:50:26 +00:00
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From 3c2d156ad9e5e45d46938d2138aca038df44b9d3 Mon Sep 17 00:00:00 2001
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2016-04-24 11:03:39 +00:00
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From: Dan Carpenter <dan.carpenter@oracle.com>
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Date: Thu, 17 Dec 2015 15:39:08 +0300
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2016-09-10 12:54:26 +00:00
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Subject: [PATCH] drm/vc4: allocate enough memory in vc4_save_hang_state()
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2016-04-24 11:03:39 +00:00
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"state" is smaller than "kernel_state" so we end up corrupting memory.
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Fixes: 214613656b51 ('drm/vc4: Add an interface for capturing the GPU state after a hang.')
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Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
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Reviewed-by: Eric Anholt <eric@anholt.net>
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(cherry picked from commit 7e5082fbc00cc157e57a70cdb6b9bbb21289afb1)
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---
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drivers/gpu/drm/vc4/vc4_gem.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/gpu/drm/vc4/vc4_gem.c
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+++ b/drivers/gpu/drm/vc4/vc4_gem.c
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@@ -159,7 +159,7 @@ vc4_save_hang_state(struct drm_device *d
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unsigned long irqflags;
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unsigned int i, unref_list_count;
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- kernel_state = kcalloc(1, sizeof(*state), GFP_KERNEL);
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+ kernel_state = kcalloc(1, sizeof(*kernel_state), GFP_KERNEL);
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if (!kernel_state)
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return;
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