Hi all,
Friendly ping: who can take this, please?
Thanks
--
Gustavo
On 6/2/21 19:17, Gustavo A. R. Silva wrote:
> Now that a one-element array was replaced with a flexible-array member
> in struct hfi_sys_set_property_pkt, use the struct_size() helper to
> correctly calculate the packet size.
>
> Fixes: 701e10b3fd9f ("media: venus: hfi_cmds.h: Replace one-element array with flexible-array member")
> Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>
> ---
> Changes in v3:
> - Fix size calculation in call to struct_size().
> Link: https://lore.kernel.org/linux-hardening/202106021254.39A1561075@keescook/
> Link: https://lore.kernel.org/linux-hardening/113fd896-464c-6aef-215a-a53ac6103a62@xxxxxxxxxxxxxx/
>
> Changes in v2:
> - Include linux/overflow.h for struct_size().
>
> drivers/media/platform/qcom/venus/hfi_cmds.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/media/platform/qcom/venus/hfi_cmds.c b/drivers/media/platform/qcom/venus/hfi_cmds.c
> index 4b9dea7f6940..f51024786991 100644
> --- a/drivers/media/platform/qcom/venus/hfi_cmds.c
> +++ b/drivers/media/platform/qcom/venus/hfi_cmds.c
> @@ -3,6 +3,7 @@
> * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
> * Copyright (C) 2017 Linaro Ltd.
> */
> +#include <linux/overflow.h>
> #include <linux/errno.h>
> #include <linux/hash.h>
>
> @@ -27,7 +28,7 @@ void pkt_sys_idle_indicator(struct hfi_sys_set_property_pkt *pkt, u32 enable)
> {
> struct hfi_enable *hfi = (struct hfi_enable *)&pkt->data[1];
>
> - pkt->hdr.size = sizeof(*pkt) + sizeof(*hfi) + sizeof(u32);
> + pkt->hdr.size = struct_size(pkt, data, 1) + sizeof(*hfi);
> pkt->hdr.pkt_type = HFI_CMD_SYS_SET_PROPERTY;
> pkt->num_properties = 1;
> pkt->data[0] = HFI_PROPERTY_SYS_IDLE_INDICATOR;
> @@ -39,7 +40,7 @@ void pkt_sys_debug_config(struct hfi_sys_set_property_pkt *pkt, u32 mode,
> {
> struct hfi_debug_config *hfi;
>
> - pkt->hdr.size = sizeof(*pkt) + sizeof(*hfi) + sizeof(u32);
> + pkt->hdr.size = struct_size(pkt, data, 1) + sizeof(*hfi);
> pkt->hdr.pkt_type = HFI_CMD_SYS_SET_PROPERTY;
> pkt->num_properties = 1;
> pkt->data[0] = HFI_PROPERTY_SYS_DEBUG_CONFIG;
> @@ -50,7 +51,7 @@ void pkt_sys_debug_config(struct hfi_sys_set_property_pkt *pkt, u32 mode,
>
> void pkt_sys_coverage_config(struct hfi_sys_set_property_pkt *pkt, u32 mode)
> {
> - pkt->hdr.size = sizeof(*pkt) + sizeof(u32);
> + pkt->hdr.size = struct_size(pkt, data, 2);
> pkt->hdr.pkt_type = HFI_CMD_SYS_SET_PROPERTY;
> pkt->num_properties = 1;
> pkt->data[0] = HFI_PROPERTY_SYS_CONFIG_COVERAGE;
> @@ -116,7 +117,7 @@ void pkt_sys_power_control(struct hfi_sys_set_property_pkt *pkt, u32 enable)
> {
> struct hfi_enable *hfi = (struct hfi_enable *)&pkt->data[1];
>
> - pkt->hdr.size = sizeof(*pkt) + sizeof(*hfi) + sizeof(u32);
> + pkt->hdr.size = struct_size(pkt, data, 1) + sizeof(*hfi);
> pkt->hdr.pkt_type = HFI_CMD_SYS_SET_PROPERTY;
> pkt->num_properties = 1;
> pkt->data[0] = HFI_PROPERTY_SYS_CODEC_POWER_PLANE_CTRL;
>
