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authorFelix Fietkau <nbd@openwrt.org>2015-09-22 11:29:00 +0000
committerFelix Fietkau <nbd@openwrt.org>2015-09-22 11:29:00 +0000
commitec73b2e3832fcd0957603ad8d2aa6f3a13f09cdb (patch)
treedcd26bd93f99870b1d0705dd491c2cc05447870b /target
parent28a46862207c0a0178a0a1ecf8fea35b827a3ae0 (diff)
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kernel: add a patch to fix crashes on pppoe disconnect/reconnect
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Backport of r47026 git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@47027 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target')
-rw-r--r--target/linux/generic/patches-3.18/101-pppoe-fix-disconnect-crash.patch16
-rw-r--r--target/linux/generic/patches-3.18/650-pppoe_header_pad.patch4
2 files changed, 18 insertions, 2 deletions
diff --git a/target/linux/generic/patches-3.18/101-pppoe-fix-disconnect-crash.patch b/target/linux/generic/patches-3.18/101-pppoe-fix-disconnect-crash.patch
new file mode 100644
index 0000000000..f2e6e45b0b
--- /dev/null
+++ b/target/linux/generic/patches-3.18/101-pppoe-fix-disconnect-crash.patch
@@ -0,0 +1,16 @@
+Fix crash with actions performed on the underlying interface (MAC address,
+MTU or link state update). This triggers pppoe_flush_dev(), which cleans up
+the device without announcing it in sk->sk_state.
+
+Patch by Guillaume Nault (pulled from netdev@vger)
+
+--- a/drivers/net/ppp/pppoe.c
++++ b/drivers/net/ppp/pppoe.c
+@@ -313,7 +313,6 @@ static void pppoe_flush_dev(struct net_d
+ if (po->pppoe_dev == dev &&
+ sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND | PPPOX_ZOMBIE)) {
+ pppox_unbind_sock(sk);
+- sk->sk_state = PPPOX_ZOMBIE;
+ sk->sk_state_change(sk);
+ po->pppoe_dev = NULL;
+ dev_put(dev);
diff --git a/target/linux/generic/patches-3.18/650-pppoe_header_pad.patch b/target/linux/generic/patches-3.18/650-pppoe_header_pad.patch
index 3b4978be84..4b623fad29 100644
--- a/target/linux/generic/patches-3.18/650-pppoe_header_pad.patch
+++ b/target/linux/generic/patches-3.18/650-pppoe_header_pad.patch
@@ -1,6 +1,6 @@
--- a/drivers/net/ppp/pppoe.c
+++ b/drivers/net/ppp/pppoe.c
-@@ -869,7 +869,7 @@ static int pppoe_sendmsg(struct kiocb *i
+@@ -868,7 +868,7 @@ static int pppoe_sendmsg(struct kiocb *i
goto end;
@@ -9,7 +9,7 @@
0, GFP_KERNEL);
if (!skb) {
error = -ENOMEM;
-@@ -877,7 +877,7 @@ static int pppoe_sendmsg(struct kiocb *i
+@@ -876,7 +876,7 @@ static int pppoe_sendmsg(struct kiocb *i
}
/* Reserve space for headers. */