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authorHauke Mehrtens <hauke@hauke-m.de>2011-04-03 13:20:41 +0000
committerHauke Mehrtens <hauke@hauke-m.de>2011-04-03 13:20:41 +0000
commit0301e0707408c3497dcb12840c8658d64392e08a (patch)
tree39d57edae877420e9a232cc442af85de2a95c5c1
parent6b654266bb99e8e3907e19a28a1cf1a210739fbf (diff)
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kernel: l2tp: fix possible oops on l2tp_eth module unload
SVN-Revision: 26440
-rw-r--r--target/linux/generic/patches-2.6.38/160-l2tp_fix_oops_backport.patch37
1 files changed, 37 insertions, 0 deletions
diff --git a/target/linux/generic/patches-2.6.38/160-l2tp_fix_oops_backport.patch b/target/linux/generic/patches-2.6.38/160-l2tp_fix_oops_backport.patch
new file mode 100644
index 0000000..d8b7b5a
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/160-l2tp_fix_oops_backport.patch
@@ -0,0 +1,37 @@
+commit 8aa525a9340da4227797a06221ca08399006635f
+Author: James Chapman <jchapman@katalix.com>
+Date: Mon Mar 21 18:10:25 2011 -0700
+
+ l2tp: fix possible oops on l2tp_eth module unload
+
+ A struct used in the l2tp_eth driver for registering network namespace
+ ops was incorrectly marked as __net_initdata, leading to oops when
+ module unloaded.
+
+ BUG: unable to handle kernel paging request at ffffffffa00ec098
+ IP: [<ffffffff8123dbd8>] ops_exit_list+0x7/0x4b
+ PGD 142d067 PUD 1431063 PMD 195da8067 PTE 0
+ Oops: 0000 [#1] SMP
+ last sysfs file: /sys/module/l2tp_eth/refcnt
+ Call Trace:
+ [<ffffffff8123dc94>] ? unregister_pernet_operations+0x32/0x93
+ [<ffffffff8123dd20>] ? unregister_pernet_device+0x2b/0x38
+ [<ffffffff81068b6e>] ? sys_delete_module+0x1b8/0x222
+ [<ffffffff810c7300>] ? do_munmap+0x254/0x318
+ [<ffffffff812c64e5>] ? page_fault+0x25/0x30
+ [<ffffffff812c6952>] ? system_call_fastpath+0x16/0x1b
+
+ Signed-off-by: James Chapman <jchapman@katalix.com>
+ Signed-off-by: David S. Miller <davem@davemloft.net>
+
+--- a/net/l2tp/l2tp_eth.c
++++ b/net/l2tp/l2tp_eth.c
+@@ -283,7 +283,7 @@ static __net_init int l2tp_eth_init_net(
+ return 0;
+ }
+
+-static __net_initdata struct pernet_operations l2tp_eth_net_ops = {
++static struct pernet_operations l2tp_eth_net_ops = {
+ .init = l2tp_eth_init_net,
+ .id = &l2tp_eth_net_id,
+ .size = sizeof(struct l2tp_eth_net),