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Richard Gobert says: ==================== net: gro: add flush/flush_id checks and fix wrong offset in udp This series fixes a bug in the complete phase of UDP in GRO, in which socket lookup fails due to using network_header when parsing encapsulated packets. The fix is to add network_offset and inner_network_offset to napi_gro_cb and use these offsets for socket lookup. In addition p->flush/flush_id should be checked in all UDP flows. The same logic from tcp_gro_receive is applied for all flows in udp_gro_receive_segment. This prevents packets with mismatching network headers (flush/flush_id turned on) from merging in UDP GRO. The original series includes a change to vxlan test which adds the local parameter to prevent similar future bugs. I plan to submit it separately to net-next. This series is part of a previously submitted series to net-next: https://lore.kernel.org/all/20240408141720.98832-1-richardbgobert@gmail.com/ v3 -> v4: - Store network offsets, and use them only in udp_gro_complete flows - Correct commit hash used in Fixes tag - v3: https://lore.kernel.org/netdev/20240424163045.123528-1-richardbgobert@gmail.com/ v2 -> v3: - Add network_offsets and fix udp bug in a single commit to make backporting easier - Write to inner_network_offset in {inet,ipv6}_gro_receive - Use network_offsets union in tcp[46]_gro_complete as well - v2: https://lore.kernel.org/netdev/20240419153542.121087-1-richardbgobert@gmail.com/ v1 -> v2: - Use network_offsets instead of p_poff param as suggested by Willem - Check flush before postpull, and for all UDP GRO flows - v1: https://lore.kernel.org/netdev/20240412152120.115067-1-richardbgobert@gmail.com/ ==================== Link: https://lore.kernel.org/r/20240430143555.126083-1-richardbgobert@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.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 reStructuredText 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.