diff options
| author | Leo Liu <leo.liu@amd.com> | 2014-04-28 09:40:22 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-07 13:25:32 -0700 |
| commit | 18cb317078ba64706cda094a7b72da5faa7968e6 (patch) | |
| tree | 59fcd73fc6185f982061e27dc57110bf3c90206a /drivers | |
| parent | 7f69542687b31c83bcc54a3033f060531be57292 (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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -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 21d2d5280fc..5715429279f 100644 --- a/drivers/gpu/drm/radeon/radeon_uvd.c +++ b/drivers/gpu/drm/radeon/radeon_uvd.c @@ -449,6 +449,10 @@ 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 to small (%d / %d)!\n", (unsigned)(end - start), buf_sizes[cmd]); |