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dccp: Call inet6_destroy_sock() via sk->sk_destruct().

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commit 1651951ebea54970e0bda60c638fc2eee7a6218f upstream.

After commit d38afeec26ed ("tcp/udp: Call inet6_destroy_sock()
in IPv6 sk->sk_destruct()."), we call inet6_destroy_sock() in
sk->sk_destruct() by setting inet6_sock_destruct() to it to make
sure we do not leak inet6-specific resources.

DCCP sets its own sk->sk_destruct() in the dccp_init_sock(), and
DCCPv6 socket shares it by calling the same init function via
dccp_v6_init_sock().

To call inet6_sock_destruct() from DCCPv6 sk->sk_destruct(), we
export it and set dccp_v6_sk_destruct() in the init function.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kuniyuki Iwashima
2022-10-19 15:36:00 -07:00
committed by Greg Kroah-Hartman
parent 04d393c4bb
commit 7da54ddc04
4 changed files with 17 additions and 8 deletions
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8
net/dccp/proto.c
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@@ -171,12 +171,18 @@ const char *dccp_packet_name(const int type)
EXPORT_SYMBOL_GPL(dccp_packet_name);
static void dccp_sk_destruct(struct sock *sk)
void dccp_destruct_common(struct sock *sk)
{
struct dccp_sock *dp = dccp_sk(sk);
ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk);
dp->dccps_hc_tx_ccid = NULL;
}
EXPORT_SYMBOL_GPL(dccp_destruct_common);
static void dccp_sk_destruct(struct sock *sk)
{
dccp_destruct_common(sk);
inet_sock_destruct(sk);
}