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mptcp: fix uninit-value in mptcp_incoming_options

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[ Upstream commit 237ff253f2 ]

Added initialization use_ack to mptcp_parse_option().

Reported-by: syzbot+b834a6b2decad004cfa1@syzkaller.appspotmail.com
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Edward Adam Davis 2023-11-23 09:23:39 +08:00 committed by Greg Kroah-Hartman
parent 8d40e3514a
commit 5d520ae3da
1 changed files with 1 additions and 0 deletions
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net/mptcp/options.c
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@ -103,6 +103,7 @@ static void mptcp_parse_option(const struct sk_buff *skb,
mp_opt->suboptions |= OPTION_MPTCP_DSS;
mp_opt->use_map = 1;
mp_opt->mpc_map = 1;
mp_opt->use_ack = 0;
mp_opt->data_len = get_unaligned_be16(ptr);
ptr += 2;
}