This is a note to let you know that I've just added the patch titled
mptcp: fix uninit-value in mptcp_incoming_options
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mptcp-fix-uninit-value-in-mptcp_incoming_options.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit a413aecedb00145cfe779c16b5d24da31911d68e
Author: Edward Adam Davis <eadavis@xxxxxx>
Date: Thu Nov 23 09:23:39 2023 +0800
mptcp: fix uninit-value in mptcp_incoming_options
[ Upstream commit 237ff253f2d4f6307b7b20434d7cbcc67693298b ]
Added initialization use_ack to mptcp_parse_option().
Reported-by: syzbot+b834a6b2decad004cfa1@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Edward Adam Davis <eadavis@xxxxxx>
Acked-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index 64afe71e2129..c389d7e47135 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -92,6 +92,7 @@ static void mptcp_parse_option(const struct sk_buff *skb,
mp_opt->dss = 1;
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;
}
