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Date: Mon, 19 Mar 2012 17:42:41 -0400 (EDT)
From: David Miller <>
Subject: Re: [PATCH] net: bpf_jit: fix BPF_S_LDX_B_MSH compilation

From: Eric Dumazet <>
Date: Sun, 18 Mar 2012 05:40:48 -0700

> [PATCH] net: bpf_jit: fix BPF_S_LDX_B_MSH compilation
> Matt Evans spotted that x86 bpf_jit was incorrectly handling negative
> constant offsets in BPF_S_LDX_B_MSH instruction.
> We need to abort JIT compilation like we do in common_load so that
> filter uses the interpreter code and can call __load_pointer()
> Reference:
> Thanks to Indan Zupancic to bring back this issue.
> Reported-by: Matt Evans <>
> Reported-by: Indan Zupancic <>
> Signed-off-by: Eric Dumazet <>

Applied and even though libpcap won't generate this I'll queue it up
to -stable anyways.

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