linux-kernel - Re: [syzbot] [iommu?] KMSAN: uninit-value in iopt_pages_unfill

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Message-ID: <tencent_BE4FD18DAFA5A80DF7122C5D92DD98997507@qq.com>
Date: Mon, 26 Jan 2026 10:29:23 +0800
From: Edward Adam Davis <eadavis@...com>
To: syzbot+a0c841e02f328005bbcc@...kaller.appspotmail.com
Cc: linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [iommu?] KMSAN: uninit-value in iopt_pages_unfill_xarray

#syz test

diff --git a/drivers/iommu/iommufd/pages.c b/drivers/iommu/iommufd/pages.c
index dbe51ecb9a20..f606148920fa 100644
--- a/drivers/iommu/iommufd/pages.c
+++ b/drivers/iommu/iommufd/pages.c
@@ -289,6 +289,7 @@ static void batch_clear(struct pfn_batch *batch)
 	batch->end = 0;
 	batch->pfns[0] = 0;
 	batch->npfns[0] = 0;
+	batch->kind = 0;
 }
 
 /*