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| author | Hauke Mehrtens <hauke@hauke-m.de> | 2010-07-17 13:01:16 +0000 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2010-07-17 13:01:16 +0000 |
| commit | bcec3ad0e9d648236729c211d44f269456f882ec (patch) | |
| tree | 028fca0775f9cfb1548bc03030d67760912e20c0 | |
| parent | 2e05035bb1cefd76d3739ff7aff126a2698bc077 (diff) | |
| download | mtk-20170518-bcec3ad0e9d648236729c211d44f269456f882ec.zip mtk-20170518-bcec3ad0e9d648236729c211d44f269456f882ec.tar.gz mtk-20170518-bcec3ad0e9d648236729c211d44f269456f882ec.tar.bz2 | |
kernel: fix kernel panic when traffic goes over the network.
SVN-Revision: 22246
| -rw-r--r-- | target/linux/generic/patches-2.6.35/110-netfilter_match_speedup.patch | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/target/linux/generic/patches-2.6.35/110-netfilter_match_speedup.patch b/target/linux/generic/patches-2.6.35/110-netfilter_match_speedup.patch index b688fda..7affbb1 100644 --- a/target/linux/generic/patches-2.6.35/110-netfilter_match_speedup.patch +++ b/target/linux/generic/patches-2.6.35/110-netfilter_match_speedup.patch @@ -75,7 +75,7 @@ } /* for const-correctness */ -@@ -312,8 +338,28 @@ ipt_do_table(struct sk_buff *skb, +@@ -312,8 +338,29 @@ ipt_do_table(struct sk_buff *skb, const struct xt_table_info *private; struct xt_action_param acpar; @@ -85,7 +85,8 @@ + IP_NF_ASSERT(table->valid_hooks & (1 << hook)); + xt_info_rdlock_bh(); + private = table->private; -+ table_base = private->entries[smp_processor_id()]; ++ cpu = smp_processor_id(); ++ table_base = private->entries[cpu]; + e = get_entry(table_base, private->hook_entry[hook]); + + if (e->target_offset <= sizeof(struct ipt_entry) && @@ -105,7 +106,25 @@ indev = in ? in->name : nulldevname; outdev = out ? out->name : nulldevname; /* We handle fragments by dealing with the first fragment as -@@ -970,6 +1016,7 @@ copy_entries_to_user(unsigned int total_ +@@ -330,17 +377,10 @@ ipt_do_table(struct sk_buff *skb, + acpar.family = NFPROTO_IPV4; + acpar.hooknum = hook; + +- IP_NF_ASSERT(table->valid_hooks & (1 << hook)); +- xt_info_rdlock_bh(); +- private = table->private; +- cpu = smp_processor_id(); +- table_base = private->entries[cpu]; + jumpstack = (struct ipt_entry **)private->jumpstack[cpu]; + stackptr = per_cpu_ptr(private->stackptr, cpu); + origptr = *stackptr; + +- e = get_entry(table_base, private->hook_entry[hook]); +- + pr_debug("Entering %s(hook %u); sp at %u (UF %p)\n", + table->name, hook, origptr, + get_entry(table_base, private->underflow[hook])); +@@ -970,6 +1010,7 @@ copy_entries_to_user(unsigned int total_ unsigned int i; const struct ipt_entry_match *m; const struct ipt_entry_target *t; @@ -113,11 +132,10 @@ e = (struct ipt_entry *)(loc_cpu_entry + off); if (copy_to_user(userptr + off -@@ -979,6 +1026,14 @@ copy_entries_to_user(unsigned int total_ - ret = -EFAULT; +@@ -980,6 +1021,14 @@ copy_entries_to_user(unsigned int total_ goto free_counters; } -+ + + flags = e->ip.flags & ~IPT_F_NO_DEF_MATCH; + if (copy_to_user(userptr + off + + offsetof(struct ipt_entry, ip.flags), @@ -125,6 +143,7 @@ + ret = -EFAULT; + goto free_counters; + } - ++ for (i = sizeof(struct ipt_entry); i < e->target_offset; + i += m->u.match_size) { |