diff options
Diffstat (limited to 'target/linux/generic/patches-4.1/103-packet_allow_empty_payload.patch')
| -rw-r--r-- | target/linux/generic/patches-4.1/103-packet_allow_empty_payload.patch | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.1/103-packet_allow_empty_payload.patch b/target/linux/generic/patches-4.1/103-packet_allow_empty_payload.patch new file mode 100644 index 0000000000..2b9c4b00a2 --- /dev/null +++ b/target/linux/generic/patches-4.1/103-packet_allow_empty_payload.patch @@ -0,0 +1,17 @@ +Fix a regression in the af_packet code that was breaking PPPoE + +pppd sends packets with only a header and no payload. + +Signed-off-by: Felix Fietkau <nbd@nbd.name> + +--- a/net/packet/af_packet.c ++++ b/net/packet/af_packet.c +@@ -2112,7 +2112,7 @@ static void tpacket_destruct_skb(struct + static bool ll_header_truncated(const struct net_device *dev, int len) + { + /* net device doesn't like empty head */ +- if (unlikely(len <= dev->hard_header_len)) { ++ if (unlikely(len < dev->hard_header_len)) { + net_warn_ratelimited("%s: packet size is too short (%d <= %d)\n", + current->comm, len, dev->hard_header_len); + return true; |