CVE-2022-50004 xfrm: policy: fix metadata dst->dev xmit null pointer dereference

In the Linux kernel, the following vulnerability has been resolved: xfrm: policy: fix metadata dst-dev xmit null pointer dereference When we try to transmit an skb with metadatadst attached i.e. dst-dev == NULL through xfrm interface we can hit a null pointer dereference1 in xfrmixmit2 -...

CVE-2022-50004

CVE-2022-50004 is a Linux kernel vulnerability in the xfrm policy path. A null pointer dereference can occur when transmitting an skb with metadata_dst where dst->dev is NULL, through the xfrm interface, due to a missing null check in xfrmi_xmit/xfrm_lookup_with_ifid. The impact is kernel cras...