6.1 LTS has backported commit ca43ccf41224 ("dccp/tcp: Avoid negative sk_forward_alloc by ipv6_pinfo.pktoptions.") and commit 62ec33b44e0f ("net: Remove WARN_ON_ONCE(sk->sk_forward_alloc) from sk_stream_kill_queues()."), but these are incomplete. There are some patches that have not been backported including key pre-patch commit b5fc29233d28 ("inet6: Remove inet6_destroy_sock() in sk->sk_prot->destroy().").
Backport complete patchset for inet6_destroy_sock() call modificatioin.
Kuniyuki Iwashima (3): inet6: Remove inet6_destroy_sock() in sk->sk_prot->destroy(). dccp: Call inet6_destroy_sock() via sk->sk_destruct(). sctp: Call inet6_destroy_sock() via sk->sk_destruct().
net/dccp/dccp.h | 1 + net/dccp/ipv6.c | 15 ++++++++------- net/dccp/proto.c | 8 +++++++- net/ipv6/af_inet6.c | 1 + net/ipv6/ping.c | 6 ------ net/ipv6/raw.c | 2 -- net/ipv6/tcp_ipv6.c | 8 +------- net/ipv6/udp.c | 2 -- net/l2tp/l2tp_ip6.c | 2 -- net/mptcp/protocol.c | 7 ------- net/sctp/socket.c | 29 +++++++++++++++++++++-------- 11 files changed, 39 insertions(+), 42 deletions(-)