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[ Upstream commit817c7cd204] gve_rx_append_frags() is able to build skbs chained with frag_list, like GRO engine. Problem is that shinfo->frag_list should only be used for the head of the chain. All other links should use skb->next pointer. Otherwise, built skbs are not valid and can cause crashes. Equivalent code in GRO (skb_gro_receive()) is: if (NAPI_GRO_CB(p)->last == p) skb_shinfo(p)->frag_list = skb; else NAPI_GRO_CB(p)->last->next = skb; NAPI_GRO_CB(p)->last = skb; Fixes:9b8dd5e5ea("gve: DQO: Add RX path") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Bailey Forrest <bcf@google.com> Cc: Willem de Bruijn <willemb@google.com> Cc: Catherine Sullivan <csully@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.