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Date: Mon, 15 Mar 2010 20:38:33 -0700 (PDT) From: David Miller <davem@...emloft.net> To: herbert@...dor.apana.org.au Cc: michael-dev@...i-braun.de, netdev@...r.kernel.org Subject: Re: [PATCH] BUG: unable to handle kernel NULL pointer dereference at br_multicast_leave_group From: Herbert Xu <herbert@...dor.apana.org.au> Date: Tue, 16 Mar 2010 11:10:05 +0800 > michael-dev@...i-braun.de wrote: >> >> I'm currently using linux-next and have been running into an OOPs which >> I think might be caused by a patch you submitted on 2010-02-27. >> >> It's a linux-next kernel from 2010-03-12 on an x86 system and it >> OOPs in the bridge module in br_mdp_ip_get (called by >> br_multicast_leave_group) because the br->mdb is null. > > Thanks, there's actually another spot (the query handler) where > the same thing can happen. > > Here's a patch to fix them both. > > bridge: Move NULL mdb check into br_mdb_ip_get > > Since all callers of br_mdb_ip_get need to check whether the > hash table is NULL, this patch moves the check into the function. > > This fixes the two callers (query/leave handler) that didn't > check it. > > Reported-by: Michael Braun <michael-dev@...i-braun.de> > Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au> Applied, thanks Herbert. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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