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ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo()

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ipv6_hop_jumbo() calls pskb_trim_rcsum(), which can change skb pointers.
Let's recompute nh pointer to make sure any change won't mess things up.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Signed-off-by: Justin Iurman <justin.iurman@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260522112013.12342-1-justin.iurman@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Justin Iurman
2026-05-25 11:08:00 -07:00
committed by Jakub Kicinski
parent f7b52afe35
commit d47548a366
1 changed files with 2 additions and 0 deletions
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net/ipv6/exthdrs.c
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@@ -184,6 +184,8 @@ static bool ip6_parse_tlv(bool hopbyhop,
case IPV6_TLV_JUMBO:
if (!ipv6_hop_jumbo(skb, off))
return false;
nh = skb_network_header(skb);
break;
case IPV6_TLV_CALIPSO:
if (!ipv6_hop_calipso(skb, off))