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

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Message-ID: <6974b8f3.a00a0220.33ccc7.0007.GAE@google.com>
Date: Sat, 24 Jan 2026 04:20:03 -0800
From: syzbot <syzbot+df28076a30d726933015@...kaller.appspotmail.com>
To: kartikey406@...il.com, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [iommu?] KMSAN: uninit-value in pfn_reader_next

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+df28076a30d726933015@...kaller.appspotmail.com
Tested-by: syzbot+df28076a30d726933015@...kaller.appspotmail.com

Tested on:

commit:         62085877 Merge tag 'kbuild-fixes-6.19-2' of git://git...
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1246bd22580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=8bf02b9e495b9fcd
dashboard link: https://syzkaller.appspot.com/bug?extid=df28076a30d726933015
compiler:       Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1007805a580000

Note: testing is done by a robot and is best-effort only.