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[ Upstream commit44d4775ca5] syzkaller shows that packets can still be dequeued while taprio_destroy() is running. Let sch_taprio use the reset() function to cancel the advance timer and drop all skbs from the child qdiscs. Fixes:5a781ccbd1("tc: Add support for configuring the taprio scheduler") Link: https://syzkaller.appspot.com/bug?id=f362872379bf8f0017fb667c1ab158f2d1e764ae Reported-by: syzbot+8971da381fb5a31f542d@syzkaller.appspotmail.com Signed-off-by: Davide Caratti <dcaratti@redhat.com> Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> Link: https://lore.kernel.org/r/63b6d79b0e830ebb0283e020db4df3cdfdfb2b94.1608142843.git.dcaratti@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.