diff options
| author | Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> | 2024-10-17 07:36:46 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-10-22 17:50:37 -0400 |
| commit | 86b5be6ea20a9c8f4b23bf4377be48e5d7facfcb (patch) | |
| tree | 3a5625a736d38be4e67c8c345dbf30130db20be6 /drivers/gpu/drm/amd | |
| parent | a3fc44b98043df7a843e43eb217bc937f3d7a9d8 (diff) | |
drm/amd/display: Add hpd_source index check for dcn401 link encoder setup
This patch adds a boundary check for the hpd_source index during the
link encoder creation process for all dcn401 ip. The check ensures that the
index is within the valid range of the link_enc_hpd_regs array to
prevent out-of-bounds access.
Cc: Tom Chung <chiahsuan.chung@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Roman Li <roman.li@amd.com>
Cc: Alex Hung <alex.hung@amd.com>
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c index 46feff9348d9..b425b34dc7f5 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c @@ -1032,7 +1032,7 @@ static struct link_encoder *dcn401_link_encoder_create( struct dcn20_link_encoder *enc20 = kzalloc(sizeof(struct dcn20_link_encoder), GFP_KERNEL); - if (!enc20) + if (!enc20 || enc_init_data->hpd_source >= ARRAY_SIZE(link_enc_hpd_regs)) return NULL; #undef REG_STRUCT |