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authorBrian Starkey <brian.starkey@arm.com>2017-02-20 11:02:46 +0000
committerRobert Foss <robert.foss@collabora.com>2017-02-21 10:02:21 -0500
commit45f9bb49b153c0833c088e4fffe7273129fe8715 (patch)
treee8989b5e90adb6d12f0ce4ed20cfbff8dad2a692 /lib
parent1ab629f0f9da4773b5590b91694a5592d21344d5 (diff)
lib/igt_kms: Fix possible out-of-bounds access
If there's no primary plane, pipe->plane_primary == -1, and the assert meant to check that it's valid will access pipe->planes[-1]. Fix that to check that pipe->plane_primary has been set instead. Fixes: 36656239ef96 lib/igt_kms: Implement dynamic plane count support Signed-off-by: Brian Starkey <brian.starkey@arm.com> Reviewed-by: Robert Foss <robert.foss@collabora.com>
Diffstat (limited to 'lib')
-rw-r--r--lib/igt_kms.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 585aad7a..2073a6ac 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -1675,9 +1675,9 @@ void igt_display_init(igt_display_t *display, int drm_fd)
/*
* At the bare minimum, we should expect to have a primary
- * plane
+ * plane, and it must be in slot 0.
*/
- igt_assert(pipe->planes[pipe->plane_primary].drm_plane);
+ igt_assert_eq(pipe->plane_primary, 0);
if (display->has_cursor_plane) {
/*