linux-toradex.git/drivers/gpu/drm/amd/amdgpu/df_v3_6.c, branch v5.0 Linux kernel for Apalis and Colibri modules drm/amdgpu/df: fix potential array out-of-bounds read 2018-06-01T14:45:05+00:00 Colin Ian King colin.king@canonical.com 2018-05-30T16:41:44+00:00 036286e28e8ece7637cc62934f7dbc89e6656940 The comparison with the number of elements in array df_v3_7_channel_number is off-by-one and can produce an array out-of-bounds read if fb_channel_number is equal to the number of elements of the array. Fix this by changing the comparison to >= instead of >. Detected by CoverityScan, CID#1469489 ("Out-of-bounds read") Fixes: 13b581502d51 ("drm/amdgpu/df: implement df v3_6 callback functions (v2)") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
The comparison with the number of elements in array df_v3_7_channel_number
is off-by-one and can produce an array out-of-bounds read if
fb_channel_number is equal to the number of elements of the array. Fix
this by changing the comparison to >= instead of >.

Detected by CoverityScan, CID#1469489 ("Out-of-bounds read")

Fixes: 13b581502d51 ("drm/amdgpu/df: implement df v3_6 callback functions (v2)")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu/df: implement df v3_6 callback functions (v2) 2018-05-18T21:08:15+00:00 Feifei Xu Feifei.Xu@amd.com 2018-04-04T06:30:28+00:00 13b581502d5101adadfb7ea269ff4c8074ba76cb New df helpers for 3.6. v2: switch to using df 3.6 headers (Alex) Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Feifei Xu <Feifei.Xu@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
New df helpers for 3.6.

v2: switch to using df 3.6 headers (Alex)

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>