xsk: proper fill queue descriptor validation

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Previously the fill queue descriptor was not copied to kernel space
prior validating it, making it possible for userland to change the
descriptor post-kernel-validation.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

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Björn Töpel 2018-06-04 13:57:11 +02:00 • committed by Daniel Borkmann

parent bd3a08aaa9

commit 4e64c83525

2 changed files with 14 additions and 29 deletions

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11

net/xdp/xsk.c

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32

net/xdp/xsk_queue.h

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