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308491755f
Like __xfrm_transport/mode_tunnel_prep(), this patch is to add __xfrm_mode_beet_prep() to fix the transport_header for gso segments, and reset skb mac_len, and pull skb data to the proto inside esp. This patch also fixes a panic, reported by ltp: # modprobe esp4_offload # runltp -f net_stress.ipsec_tcp [ 2452.780511] kernel BUG at net/core/skbuff.c:109! [ 2452.799851] Call Trace: [ 2452.800298] <IRQ> [ 2452.800705] skb_push.cold.98+0x14/0x20 [ 2452.801396] esp_xmit+0x17b/0x270 [esp4_offload] [ 2452.802799] validate_xmit_xfrm+0x22f/0x2e0 [ 2452.804285] __dev_queue_xmit+0x589/0x910 [ 2452.806264] __neigh_update+0x3d7/0xa50 [ 2452.806958] arp_process+0x259/0x810 [ 2452.807589] arp_rcv+0x18a/0x1c It was caused by the skb going to esp_xmit with a wrong transport header. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> |
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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.