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[ Upstream commita64b341b86] 1. In closed state: in sctp_sf_do_5_1D_ce(): When asoc is NULL, making packet for abort will use chunk's vtag in sctp_ootb_pkt_new(). But when asoc exists, vtag from the chunk should be verified before using peer.i.init_tag to make packet for abort in sctp_ootb_pkt_new(), and just discard it if vtag is not correct. 2. In the other states: in sctp_sf_do_5_2_4_dupcook(): asoc always exists, but duplicate cookie_echo's vtag will be handled by sctp_tietags_compare() and then take actions, so before that we only verify the vtag for the abort sent for invalid chunk length. Fixes:1da177e4c3("Linux-2.6.12-rc2") Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> 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.