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authorMark Brown <broonie@kernel.org>2019-01-29 12:04:54 +0000
committerMark Brown <broonie@kernel.org>2019-01-29 12:04:54 +0000
commitd7c26e63cf78fef01d66ae848184c6ee5f4b8bbf (patch)
tree3765745a38a7ae1a4a3a056dfc6c736e4c99271d /net/packet/af_packet.c
parenta8233b6c1972e1959cf84a021aeb61ddcd23cc26 (diff)
parentf17b5f06cb92ef2250513a1e154c47b78df07d40 (diff)
Merge tag 'v5.0-rc4' into asoc-5.1
Linux 5.0-rc4
Diffstat (limited to 'net/packet/af_packet.c')
-rw-r--r--net/packet/af_packet.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index eedacdebcd4c..3b1a78906bc0 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -2628,7 +2628,7 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
addr = saddr->sll_halen ? saddr->sll_addr : NULL;
dev = dev_get_by_index(sock_net(&po->sk), saddr->sll_ifindex);
if (addr && dev && saddr->sll_halen < dev->addr_len)
- goto out;
+ goto out_put;
}
err = -ENXIO;
@@ -2828,7 +2828,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
addr = saddr->sll_halen ? saddr->sll_addr : NULL;
dev = dev_get_by_index(sock_net(sk), saddr->sll_ifindex);
if (addr && dev && saddr->sll_halen < dev->addr_len)
- goto out;
+ goto out_unlock;
}
err = -ENXIO;
@@ -2887,7 +2887,8 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
goto out_free;
} else if (reserve) {
skb_reserve(skb, -reserve);
- if (len < reserve)
+ if (len < reserve + sizeof(struct ipv6hdr) &&
+ dev->min_header_len != dev->hard_header_len)
skb_reset_network_header(skb);
}