[v1] common/idpf: fix possible null dereference
Checks
Commit Message
From: mingxial <mingxia.liu@intel.com>
Coverity is reporting FORWARD_NULL issue when msg.ctx.indirect.payload
is NULL. Adding NULL check for this.
Coverity issue: 381689
Fixes: fb4ac04e9bfa ("common/idpf: introduce common library")
Cc: stable@dpdk.org
Signed-off-by: mingxial <mingxia.liu@intel.com>
---
drivers/common/idpf/base/idpf_common.c | 2 ++
1 file changed, 2 insertions(+)
Comments
> -----Original Message-----
> From: Mingxia Liu <mingxia.liu@intel.com>
> Sent: Wednesday, November 9, 2022 1:17 PM
> To: dev@dpdk.org
> Cc: Wu, Jingjing <jingjing.wu@intel.com>; Xing, Beilei <beilei.xing@intel.com>;
> Wang, Xiao W <xiao.w.wang@intel.com>; Guo, Junfeng
> <junfeng.guo@intel.com>; Liu, Mingxia <mingxia.liu@intel.com>;
> stable@dpdk.org
> Subject: [PATCH v1] common/idpf: fix possible null dereference
>
> From: mingxial <mingxia.liu@intel.com>
>
> Coverity is reporting FORWARD_NULL issue when msg.ctx.indirect.payload is
> NULL. Adding NULL check for this.
>
> Coverity issue: 381689
> Fixes: fb4ac04e9bfa ("common/idpf: introduce common library")
> Cc: stable@dpdk.org
Fix current release no need Cc stable
>
> Signed-off-by: mingxial <mingxia.liu@intel.com>
s/mingxial/Mingxia Liu/
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
Applied to dpdk-next-net-intel.
Thanks
Qi
@@ -234,6 +234,8 @@ int idpf_clean_arq_element(struct idpf_hw *hw,
e->desc.ret_val = msg.status;
e->desc.datalen = msg.data_len;
if (msg.data_len > 0) {
+ if (!msg.ctx.indirect.payload)
+ return -EINVAL;
e->buf_len = msg.data_len;
msg_data_len = msg.data_len;
idpf_memcpy(e->msg_buf, msg.ctx.indirect.payload->va, msg_data_len,