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| author | Ingo Molnar <mingo@kernel.org> | 2022-11-21 22:54:36 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2022-11-21 23:01:51 +0100 |
| commit | 0ce096db719ebaf46d4faf93e1ed1341c1853919 (patch) | |
| tree | 41c8826034eb5b430adf97d43fb0f2dce78325ba /net/l2tp | |
| parent | 2d08a893b87cf9b2f9dbb3afaff60ca4530d55a2 (diff) | |
| parent | eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 (diff) | |
| download | linux-rpi-0ce096db719ebaf46d4faf93e1ed1341c1853919.tar.gz linux-rpi-0ce096db719ebaf46d4faf93e1ed1341c1853919.tar.bz2 linux-rpi-0ce096db719ebaf46d4faf93e1ed1341c1853919.zip | |
Merge tag 'v6.1-rc6' into x86/core, to resolve conflicts
Resolve conflicts between these commits in arch/x86/kernel/asm-offsets.c:
# upstream:
debc5a1ec0d1 ("KVM: x86: use a separate asm-offsets.c file")
# retbleed work in x86/core:
5d8213864ade ("x86/retbleed: Add SKL return thunk")
... and these commits in include/linux/bpf.h:
# upstram:
18acb7fac22f ("bpf: Revert ("Fix dispatcher patchable function entry to 5 bytes nop")")
# x86/core commits:
931ab63664f0 ("x86/ibt: Implement FineIBT")
bea75b33895f ("x86/Kconfig: Introduce function padding")
The latter two modify BPF_DISPATCHER_ATTRIBUTES(), which was removed upstream.
Conflicts:
arch/x86/kernel/asm-offsets.c
include/linux/bpf.h
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/l2tp')
| -rw-r--r-- | net/l2tp/l2tp_core.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c index 7499c51b1850..754fdda8a5f5 100644 --- a/net/l2tp/l2tp_core.c +++ b/net/l2tp/l2tp_core.c @@ -1150,8 +1150,10 @@ static void l2tp_tunnel_destruct(struct sock *sk) } /* Remove hooks into tunnel socket */ + write_lock_bh(&sk->sk_callback_lock); sk->sk_destruct = tunnel->old_sk_destruct; sk->sk_user_data = NULL; + write_unlock_bh(&sk->sk_callback_lock); /* Call the original destructor */ if (sk->sk_destruct) @@ -1469,16 +1471,18 @@ int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net, sock = sockfd_lookup(tunnel->fd, &ret); if (!sock) goto err; - - ret = l2tp_validate_socket(sock->sk, net, tunnel->encap); - if (ret < 0) - goto err_sock; } + sk = sock->sk; + write_lock(&sk->sk_callback_lock); + + ret = l2tp_validate_socket(sk, net, tunnel->encap); + if (ret < 0) + goto err_sock; + tunnel->l2tp_net = net; pn = l2tp_pernet(net); - sk = sock->sk; sock_hold(sk); tunnel->sock = sk; @@ -1504,7 +1508,7 @@ int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net, setup_udp_tunnel_sock(net, sock, &udp_cfg); } else { - sk->sk_user_data = tunnel; + rcu_assign_sk_user_data(sk, tunnel); } tunnel->old_sk_destruct = sk->sk_destruct; @@ -1518,6 +1522,7 @@ int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net, if (tunnel->fd >= 0) sockfd_put(sock); + write_unlock(&sk->sk_callback_lock); return 0; err_sock: @@ -1525,6 +1530,8 @@ err_sock: sock_release(sock); else sockfd_put(sock); + + write_unlock(&sk->sk_callback_lock); err: return ret; } |