From: Eric Dumazet Date: Wed, 18 Jan 2012 07:21:42 +0000 (+0000) Subject: net: bpf_jit: fix divide by 0 generation X-Git-Tag: v3.3-rc2~37^2~61 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d00a9dd21bdf7908b70866794c8313ee8a5abd5c;p=pandora-kernel.git net: bpf_jit: fix divide by 0 generation Several problems fixed in this patch : 1) Target of the conditional jump in case a divide by 0 is performed by a bpf is wrong. 2) Must 'generate' the full function prologue/epilogue at pass=0, or else we can stop too early in pass=1 if the proglen doesnt change. (if the increase of prologue/epilogue equals decrease of all instructions length because some jumps are converted to near jumps) 3) Change the wrong length detection at the end of code generation to issue a more explicit message, no need for a full stack trace. Reported-by: Phil Oester Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- Reading git-diff-tree failed