In the Linux kernel, the following vulnerability has been resolved:

ipv6: exthdrs: refresh nh after handling HAO option

ip6_parse_tlv() caches skb_network_header(skb) in nh while walking
IPv6 TLVs.

ipv6_dest_hao() may call pskb_expand_head() for a cloned skb, which can
move the skb head and invalidate the cached network header pointer.
Refresh nh after ipv6_dest_hao() returns so any trailing padding or TLVs
are parsed from the current skb head.

This matches the existing pattern used in ip6_parse_tlv() after helpers
that can modify skb header storage.

https://git.kernel.org/stable/c/12d957979e4a800167842f1b42be6a606d227ebe

https://git.kernel.org/stable/c/1a11eb7431e3d2882f5bd5939c5a9bbc65ccf4d1

https://git.kernel.org/stable/c/751db1b802a067b7fff25880f4e9f9152a171538

https://git.kernel.org/stable/c/9b6dcc0a39fd71752937f0b6b3973e1416085dcf

https://git.kernel.org/stable/c/f7b52afe3592eae66e160586b45a3f2242972c63

https://git.kernel.org/stable/c/f8aabed3ff3e986920cf02a2a2785e08e586b234

https://git.kernel.org/stable/c/ff375ed1cba81392346c5bfbf0bb7a13b2946f99

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