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llc: Fix length check in llc_fixup_skb().
authorDavid S. Miller <davem@davemloft.net>
Tue, 12 Apr 2011 01:59:05 +0000 (18:59 -0700)
committerDavid S. Miller <davem@davemloft.net>
Tue, 12 Apr 2011 01:59:05 +0000 (18:59 -0700)
commitaa8673599f1d269b4e4d9b0c0f61fca57bc02699
tree7733bac39d382cfcda0459e8973decb300a0c52atree | snapshot (tar.gz zip)
parent4a9f65f6304a00f6473e83b19c1e83caa1e42530commit | diff
llc: Fix length check in llc_fixup_skb().

Fixes bugzilla #32872

The LLC stack pretends to support non-linear skbs but there is a
direct use of skb_tail_pointer() in llc_fixup_skb().

Use pskb_may_pull() to see if data_size bytes remain and can be
accessed linearly in the packet, instead of direct pointer checks.

Signed-off-by: David S. Miller <davem@davemloft.net>
net/llc/llc_input.c diff | blob | blame | history