linux-kernel - Re: [syzbot] [usb?] [sound?] KMSAN: uninit-value in line6_pod_process

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Tue,  2 Apr 2024 10:24:58 +0800
From: Edward Adam Davis <eadavis@...com>
To: syzbot+7fb05ccf7b3d2f9617b3@...kaller.appspotmail.com
Cc: linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [usb?] [sound?] KMSAN: uninit-value in line6_pod_process_message

please test uninit-value in line6_pod_process_message

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c
index b67617b68e50..8fd9d42aa8e2 100644
--- a/sound/usb/line6/driver.c
+++ b/sound/usb/line6/driver.c
@@ -697,7 +697,7 @@ static int line6_init_cap_control(struct usb_line6 *line6)
 		return -ENOMEM;
 
 	if (line6->properties->capabilities & LINE6_CAP_CONTROL_MIDI) {
-		line6->buffer_message = kmalloc(LINE6_MIDI_MESSAGE_MAXLEN, GFP_KERNEL);
+		line6->buffer_message = kzalloc(LINE6_MIDI_MESSAGE_MAXLEN, GFP_KERNEL);
 		if (!line6->buffer_message)
 			return -ENOMEM;