From: syzbot <syzbot+b834a6b2decad004cfa1@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [syzbot] [mptcp?] KMSAN: uninit-value in mptcp_incoming_options
Date: Wed, 22 Nov 2023 16:06:50 -0800 [thread overview]
Message-ID: <000000000000c4cb01060ac69c14@google.com> (raw)
In-Reply-To: <000000000000545a26060abf943b@google.com>
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Subject: [mptcp?] KMSAN: uninit-value in mptcp_incoming_options
Author: eadavis@qq.com
please test uninit-value in mptcp_incoming_options
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git c2d5304e6c64
diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index cd15ec73073e..c53914012d01 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -108,6 +108,7 @@ 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;
}
next prev parent reply other threads:[~2023-11-23 0:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-22 15:43 [syzbot] [mptcp?] KMSAN: uninit-value in mptcp_incoming_options syzbot
2023-11-23 0:06 ` syzbot [this message]
2023-11-23 0:48 ` Kuniyuki Iwashima
2023-11-23 1:17 ` syzbot
2023-11-23 8:00 ` Paolo Abeni
[not found] ` <tencent_B0E02F1D6C009450E8D6EC06CC6C7B5E6C0A@qq.com>
2023-11-23 16:41 ` [PATCH] mptcp: fix " Paolo Abeni
2023-11-24 15:00 ` patchwork-bot+netdevbpf
[not found] <tencent_1A577926DC937A2360297AE3B6C454D76605@qq.com>
2023-11-23 0:51 ` [syzbot] [mptcp?] KMSAN: " syzbot
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