From: syzbot <syzbot+9b9124ae9b12d5af5d95@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [syzbot] Re: [syzbot] [kernel?] KMSAN: kernel-infoleak in vmci_host_unlocked_ioctl (3)
Date: Thu, 26 Jun 2025 20:26:40 -0700 [thread overview]
Message-ID: <685e0f70.a00a0220.2e5631.03ef.GAE@google.com> (raw)
In-Reply-To: <6854a3e6.a00a0220.137b3.0022.GAE@google.com>
For archival purposes, forwarding an incoming command email to
linux-kernel@vger.kernel.org.
***
Subject: Re: [syzbot] [kernel?] KMSAN: kernel-infoleak in vmci_host_unlocked_ioctl (3)
Author: lizhi.xu@windriver.com
#syz test
diff --git a/drivers/misc/vmw_vmci/vmci_context.c b/drivers/misc/vmw_vmci/vmci_context.c
index f22b44827e92..c4fcc62761a7 100644
--- a/drivers/misc/vmw_vmci/vmci_context.c
+++ b/drivers/misc/vmw_vmci/vmci_context.c
@@ -251,6 +251,7 @@ static int ctx_fire_notification(u32 context_id, u32 priv_flags)
ev.msg.hdr.src = vmci_make_handle(VMCI_HYPERVISOR_CONTEXT_ID,
VMCI_CONTEXT_RESOURCE_ID);
ev.msg.hdr.payload_size = sizeof(ev) - sizeof(ev.msg.hdr);
+ memset(&ev.msg.hdr + sizeof(ev.msg.hdr), 0, ev.msg.hdr.payload_size);
ev.msg.event_data.event = VMCI_EVENT_CTX_REMOVED;
ev.payload.context_id = context_id;
next prev parent reply other threads:[~2025-06-27 3:26 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-19 23:57 syzbot
2025-06-20 1:03 ` [syzbot] " syzbot
2025-06-20 4:21 ` syzbot
2025-06-20 5:23 ` syzbot
2025-06-20 6:52 ` syzbot
2025-06-20 6:54 ` syzbot
2025-06-22 2:37 ` Edward Adam Davis
2025-06-22 3:02 ` syzbot
2025-06-22 4:46 ` Hillf Danton
2025-06-22 5:19 ` syzbot
2025-06-22 6:28 ` Hillf Danton
2025-06-22 7:32 ` syzbot
2025-06-23 3:03 ` [syzbot] " syzbot
2025-06-23 8:03 ` syzbot
2025-06-23 8:50 ` syzbot
2025-06-23 9:45 ` syzbot
2025-06-23 12:29 ` Edward Adam Davis
2025-06-23 13:45 ` syzbot
2025-06-26 2:17 ` [syzbot] " syzbot
2025-06-26 2:49 ` syzbot
2025-06-27 3:26 ` syzbot [this message]
2025-06-27 5:13 ` syzbot
2025-06-27 5:52 ` [PATCH] vmci: Prevent the dispatching of uninitialized payloads Lizhi Xu
2025-07-03 7:53 ` [PATCH V2] " Lizhi Xu
2025-07-03 8:09 ` [syzbot] Re: [syzbot] [kernel?] KMSAN: kernel-infoleak in vmci_host_unlocked_ioctl (3) syzbot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=685e0f70.a00a0220.2e5631.03ef.GAE@google.com \
--to=syzbot+9b9124ae9b12d5af5d95@syzkaller.appspotmail.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®