lkml.org 
[lkml]   [2023]   [Nov]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
SubjectRe: [syzbot] [mptcp?] KMSAN: uninit-value in mptcp_incoming_options
From
For archival purposes, forwarding an incoming command email to
linux-kernel@vger.kernel.org.

***

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;
}
\
 
 \ /
  Last update: 2023-11-23 01:07    [W:0.064 / U:0.200 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site