Files
linux/include/net
Eric Dumazet 87ebb628a5 net: clear sk->sk_ino in sk_set_socket(sk, NULL)
Andrei Vagin reported that blamed commit broke CRIU.

Indeed, while we want to keep sk_uid unchanged when a socket
is cloned, we want to clear sk->sk_ino.

Otherwise, sock_diag might report multiple sockets sharing
the same inode number.

Move the clearing part from sock_orphan() to sk_set_socket(sk, NULL),
called both from sock_orphan() and sk_clone_lock().

Fixes: 5d6b58c932 ("net: lockless sock_i_ino()")
Closes: https://lore.kernel.org/netdev/aMhX-VnXkYDpKd9V@google.com/
Closes: https://github.com/checkpoint-restore/criu/issues/2744
Reported-by: Andrei Vagin <avagin@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Andrei Vagin <avagin@google.com>
Link: https://patch.msgid.link/20250917135337.1736101-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-18 07:47:17 -07:00
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