diff options
| author | Eric Dumazet <edumazet@google.com> | 2022-10-25 18:05:46 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-10-26 19:07:05 -0700 |
| commit | d1e96cc4fbe031c19d6fd9d8d2e63c03452fa290 (patch) | |
| tree | 08af76aa897d51a1d5763112bf29aa2d2c1c88ed /net/mptcp | |
| parent | c206394b78c745a69cbb30e935d0a26f82a37199 (diff) | |
mptcp: fix tracking issue in mptcp_subflow_create_socket()
My recent patch missed that mptcp_subflow_create_socket()
was creating a 'kernel' socket, then converted it to 'user' socket.
Fixes: 0cafd77dcd03 ("net: add a refcount tracker for kernel sockets")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Matthieu Baerts <matthieu.baerts@tessares.net>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Link: https://lore.kernel.org/r/20221025180546.652251-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mptcp')
| -rw-r--r-- | net/mptcp/subflow.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c index 07dd23d0fe04..120f792fda97 100644 --- a/net/mptcp/subflow.c +++ b/net/mptcp/subflow.c @@ -1595,7 +1595,9 @@ int mptcp_subflow_create_socket(struct sock *sk, struct socket **new_sock) /* kernel sockets do not by default acquire net ref, but TCP timer * needs it. + * Update ns_tracker to current stack trace and refcounted tracker. */ + __netns_tracker_free(net, &sf->sk->ns_tracker, false); sf->sk->sk_net_refcnt = 1; get_net_track(net, &sf->sk->ns_tracker, GFP_KERNEL); sock_inuse_add(net, 1); |