From: Alexei Starovoitov <ast@plumgrid.com>
Date: Mon, 20 Oct 2014 21:54:57 +0000 (-0700)
Subject: bpf: fix bug in eBPF verifier
X-Git-Tag: omap-for-v3.19/fixes-not-urgent-part1~25^2~52
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=32bf08a6257b9c7380dcd040af3c0858eee3ef05;p=pandora-kernel.git

bpf: fix bug in eBPF verifier

while comparing for verifier state equivalency the comparison
was missing a check for uninitialized register.
Make sure it does so and add a testcase.

Fixes: f1bca824dabb ("bpf: add search pruning optimization to verifier")
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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