diff options
| author | Leo Liu <leo.liu@amd.com> | 2014-04-28 09:40:22 -0400 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2014-06-06 12:38:17 +0200 |
| commit | 682e4b9154ce8143805ef2ce2977be7fc845c1b5 (patch) | |
| tree | 12d4c275caba41374abba17d28c411ef9cb345b4 | |
| parent | 701a07922310762f938c3e60e04c9eebba073b34 (diff) | |
drm/radeon: check buffer relocation offset
commit 695daf1a8e731a4b5b89de89a61f32a4d7ad7094 upstream.
Signed-off-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_uvd.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c index 83936473f8e..a656b1a7e10 100644 --- a/drivers/gpu/drm/radeon/radeon_uvd.c +++ b/drivers/gpu/drm/radeon/radeon_uvd.c @@ -464,6 +464,10 @@ static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p, cmd = radeon_get_ib_value(p, p->idx) >> 1; if (cmd < 0x4) { + if (end <= start) { + DRM_ERROR("invalid reloc offset %X!\n", offset); + return -EINVAL; + } if ((end - start) < buf_sizes[cmd]) { DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd, (unsigned)(end - start), buf_sizes[cmd]); |