linux-kernel - Re: [syzbot] Re: [syzbot] [kernel?] KMSAN: kernel-infoleak in vmci_host_unlocked

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Message-ID: <68590a6a.050a0220.d71a0.0003.GAE@google.com>
Date: Mon, 23 Jun 2025 01:03:54 -0700
From: syzbot <syzbot+9b9124ae9b12d5af5d95@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org
Subject: Re: [syzbot] Re: [syzbot] [kernel?] KMSAN: kernel-infoleak in
 vmci_host_unlocked_ioctl (3)

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Subject: Re: [syzbot] [kernel?] KMSAN: kernel-infoleak in vmci_host_unlocked_ioctl (3)
Author: lizhi.xu@...driver.com

#syz test

diff --git a/drivers/misc/vmw_vmci/vmci_context.c b/drivers/misc/vmw_vmci/vmci_context.c
index f22b44827e92..e8c58c3993c3 100644
--- a/drivers/misc/vmw_vmci/vmci_context.c
+++ b/drivers/misc/vmw_vmci/vmci_context.c
@@ -245,7 +245,7 @@ static int ctx_fire_notification(u32 context_id, u32 priv_flags)
 	array_size = vmci_handle_arr_get_size(subscriber_array);
 	for (i = 0; i < array_size; i++) {
 		int result;
-		struct vmci_event_ctx ev;
+		struct vmci_event_ctx ev = {0};
 
 		ev.msg.hdr.dst = vmci_handle_arr_get_entry(subscriber_array, i);
 		ev.msg.hdr.src = vmci_make_handle(VMCI_HYPERVISOR_CONTEXT_ID,