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| author |   Jakub Sitnicki <jakub@cloudflare.com> | 2020-02-18 17:10:15 +0000 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2020-02-21 22:29:45 +0100 |
| commit | e80251555f0befd1271e74b080bccf0ff0348bfc (patch) | |
| tree | 3387dd45af325c1929a160a8fab7b84dd0142e08 /net/core/sock_map.c | |
| parent | net, sk_msg: Clear sk_user_data pointer on clone if tagged (diff) | |
| download | wireguard-linux-e80251555f0befd1271e74b080bccf0ff0348bfc.tar.xz wireguard-linux-e80251555f0befd1271e74b080bccf0ff0348bfc.zip | |
tcp_bpf: Don't let child socket inherit parent protocol ops on copy
Prepare for cloning listening sockets that have their protocol callbacks
overridden by sk_msg. Child sockets must not inherit parent callbacks that
access state stored in sk_user_data owned by the parent.
Restore the child socket protocol callbacks before it gets hashed and any
of the callbacks can get invoked.
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200218171023.844439-4-jakub@cloudflare.com
Diffstat (limited to 'net/core/sock_map.c')
0 files changed, 0 insertions, 0 deletions