Re: [Intel-gfx] [PATCH i-g-t 3/5] lib/igt_kms: Fix possible out-of-bounds access
On 2017-02-17 12:54 PM, Brian Starkey wrote: 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. Reviewed-by: Robert FossRob. Fixes: 36656239ef96 lib/igt_kms: Implement dynamic plane count support Signed-off-by: Brian Starkey --- lib/igt_kms.c |4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/igt_kms.c b/lib/igt_kms.c index 783c891aebf1..45c90c71f301 100644 --- a/lib/igt_kms.c +++ b/lib/igt_kms.c @@ -1820,9 +1820,9 @@ 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) { /* ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
[Intel-gfx] [PATCH i-g-t 3/5] 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--- lib/igt_kms.c |4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/igt_kms.c b/lib/igt_kms.c index 783c891aebf1..45c90c71f301 100644 --- a/lib/igt_kms.c +++ b/lib/igt_kms.c @@ -1820,9 +1820,9 @@ 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) { /* -- 1.7.9.5 ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx