Messages in this thread | | | Date | Thu, 24 Jul 2008 17:23:03 +0200 | From | Patrick McHardy <> | Subject | Re: [regression] nf_iterate(), BUG: unable to handle kernel NULL pointer dereference |
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Ingo Molnar wrote: > Then i tried both suggested fix patches Patrick sent me (a suggested > revert and an netfilter/RCU use-after-free fix), but none of them solved > the crash.
Just to make sure - the "netfilter/RCU use-after-free fix" was the patch from Pekka?
> Thus i finally arrived to: > > # good: [ae6134bd] hdlcdrv: Fix CRC calculation. > # bad: [5547cd0d] netfilter: nf_conntrack_sctp: fix sparse warnings > # bad: [280763c6] netfilter: xt_time: fix time's time_mt()'s use of > # good: [07a7c10b] netlink: add NLA_PUT_BE64 macro > # bad: [58401573] netfilter: accounting rework: ct_extend + 64bit co > > | 584015727a3b88b46602b20077b46cd04f8b4ab3 is first bad commit > | commit 584015727a3b88b46602b20077b46cd04f8b4ab3 > | Author: Krzysztof Piotr Oledzki <ole@ans.pl> > | AuthorDate: Mon Jul 21 10:01:34 2008 -0700 > | Commit: David S. Miller <davem@davemloft.net> > | CommitDate: Mon Jul 21 10:10:58 2008 -0700 > | > | netfilter: accounting rework: ct_extend + 64bit counters (v4) > [...] > | Signed-off-by: Krzysztof Piotr Oledzki <ole@ans.pl> > | Signed-off-by: Patrick McHardy <kaber@trash.net> > | Signed-off-by: David S. Miller <davem@davemloft.net> > > Which i double-checked by reverting that commit from -git as well and > that solved the crash. Find the tested reverter patch below.
Thats odd. I don't think anything is wrong with that patch itself, its more likely that its triggering a bug in ct_extend. You config has a few helper enabled (FTP, H.323, TFTP) and the crash is when trying to call the helper functions. Did you actually have traffic of one of these protocols?
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