summaryrefslogtreecommitdiffstats
path: root/net/ipv6/exthdrs.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 10:10:26 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 10:10:26 +0000
commit116e0f61852489520aaad930b8fcbe40834819bf (patch)
treee7cd8828fee4cf285d0b49d2eccc532ac1c064af /net/ipv6/exthdrs.c
parentReleasing progress-linux version 6.1.76-1~progress6.99u1. (diff)
downloadlinux-116e0f61852489520aaad930b8fcbe40834819bf.tar.xz
linux-116e0f61852489520aaad930b8fcbe40834819bf.zip
Merging upstream version 6.1.82.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--net/ipv6/exthdrs.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 5fa0e3730..1cfdd9d95 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -180,6 +180,8 @@ static bool ip6_parse_tlv(bool hopbyhop,
case IPV6_TLV_IOAM:
if (!ipv6_hop_ioam(skb, off))
return false;
+
+ nh = skb_network_header(skb);
break;
case IPV6_TLV_JUMBO:
if (!ipv6_hop_jumbo(skb, off))
@@ -974,6 +976,14 @@ static bool ipv6_hop_ioam(struct sk_buff *skb, int optoff)
if (!skb_valid_dst(skb))
ip6_route_input(skb);
+ /* About to mangle packet header */
+ if (skb_ensure_writable(skb, optoff + 2 + hdr->opt_len))
+ goto drop;
+
+ /* Trace pointer may have changed */
+ trace = (struct ioam6_trace_hdr *)(skb_network_header(skb)
+ + optoff + sizeof(*hdr));
+
ioam6_fill_trace_data(skb, ns, trace, true);
break;
default: