From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f72.google.com (mail-oo1-f72.google.com [209.85.161.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A281D37997E for ; Fri, 7 Aug 2026 04:39:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786077544; cv=none; b=PELrNlOxUBqyToXL03nCnHEejxXaOKOIbaFB2NU1ZVLOIRGlj+Qalm3Wo1cny4LX/EwB/L89KG7KYZJKtibcv9/777Z+Gb0pAdsbgTD8GpG2uicTzbngueDqXIrCrQyWCuuusknvtqtzjM1Xmg0+Kr/PLPC+94dJGyUsNxhTY88= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786077544; c=relaxed/simple; bh=KhGR6o7PL9I6Sv6A20pjqdXfHfHDZQDoYs/mCA9mMuU=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=k+hKmuu05nbRXsOhfqxlFWtTyc7zQHaJ3GrOLX7AQIAKrVDagVoC6qJcNssui8z1zT2zgmV7xv2cupHmeD0+c02d22e08uXc25gHewVB37+9ipaCzhvReyPJOUD2m9XbQxRIV+KaOj2rjJWAC2hWoMm1MxUYUpHQS22nBS0RnkY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.161.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oo1-f72.google.com with SMTP id 006d021491bc7-6a0f261aeb6so3045875eaf.3 for ; Thu, 06 Aug 2026 21:39:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1786077541; x=1786682341; h=content-type:to:from:subject:message-id:in-reply-to:date :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to:content-type; bh=ff2htXRlLBxjMq9c6YqLWuiHVOltQV7qo8CjtZjTgaE=; b=fiv0BLCWpd51m/iPjRUIUDuGlnVM0udnn1/XDJvQocm64jKwDHixWNZuU+dzegPQ6P hqTLBiaEeoT9bWA+AgveZul/DIv62ROHUaK5CNfTHWUSnnMShJZdOvYnAHbhr6ynad5b eWfDjNdw2i6XB2ynDT3AV9cS1wJIEecEyYMK/yRSwYes7lKcJhnX+WqVT89GtzegjIvX nsMARx5yxwEknincY6xRHQ2pcnI4gUmOs1iDuq3yI6uTSSfYP/d8OnkUPojcFJikIGJd yhLJrHkToEIJYbi8JasRqVDPmzZ26qIsHbu6ClDtV+JV/AEC1zAKkKma0OhuA65pf+eK yR6A== X-Forwarded-Encrypted: i=1; AHgh+RoOgtVnFr3R/lfYGmoAOyQnha+pw9ltZtwBtVjiXApKA5vZ8tshAz5BRRbaF8Y1CdZfLq35/lxxWGQZ0bY=@vger.kernel.org X-Gm-Message-State: AOJu0YxoIOth+OZ62AbULcfg+eZXdMyfzYoi8V8NqX+CSx7rGpR/uL+p 3b9FiVkdO5x18mhxvNqOpNkviT19Ej6M1PEHSzSP0t9khbHlz+0/2DNEEyPaLG7EyKpIIR9g+zX my21N0aevyA0aQkvzRqzXX0N5c++xDEXPARAhaSdTVqditngayQB6vmLEBWY= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:809:b0:6ae:33fb:4556 with SMTP id 006d021491bc7-6b0350e5e7bmr455020eaf.8.1786077541572; Thu, 06 Aug 2026 21:39:01 -0700 (PDT) Date: Thu, 06 Aug 2026 21:39:01 -0700 In-Reply-To: <977109ec-5dd1-4e10-b911-e8bf8a1ef398@yandex.ru> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a756165.9c11d2ce.289b96.00a4.GAE@google.com> Subject: Re: [syzbot] [usb?] BUG: unable to handle kernel paging request in nhi_probe From: syzbot To: dmantipov@yandex.ru, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: kernel BUG in nhi_probe ------------[ cut here ]------------ kernel BUG at drivers/thunderbolt/nhi.c:1200! Internal error: Oops - BUG: 00000000f2000800 [#1] SMP Modules linked in: CPU: 0 UID: 0 PID: 5347 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : nhi_probe+0x69c/0x7ac drivers/thunderbolt/nhi.c:1200 lr : nhi_probe+0x69c/0x7ac drivers/thunderbolt/nhi.c:1200 sp : ffff8000944a75b0 x29: ffff8000944a75c0 x28: ffff0000d0ef78c0 x27: 1fffe0001a1def18 x26: 1fffe0001a1def18 x25: 1fffe0001a1def19 x24: 1fffe000185620b7 x23: dfff800000000000 x22: 0000010000003fff x21: 0000000000004000 x20: ffff0000d0ef7880 x19: ffff0000c2b100d0 x18: 00000000ffffffff x17: ffff80008a772000 x16: 0000000000000005 x15: ffff80008a2fbda0 x14: ffff80008a571e28 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a571e28 x10: 0000000000000001 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800084a59138 x2 : 0000000000004000 x1 : ffff0000c8943a80 x0 : 0000000000000000 Call trace: nhi_probe+0x69c/0x7ac drivers/thunderbolt/nhi.c:1200 (P) nhi_pci_probe+0x418/0x4e4 drivers/thunderbolt/pci.c:479 local_pci_probe+0xc8/0x158 drivers/pci/pci-driver.c:332 pci_call_probe drivers/pci/pci-driver.c:394 [inline] __pci_device_probe drivers/pci/pci-driver.c:455 [inline] pci_device_probe+0x460/0x8d4 drivers/pci/pci-driver.c:489 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x29c/0x800 drivers/base/dd.c:706 __driver_probe_device+0x1e0/0x350 drivers/base/dd.c:868 device_driver_attach+0x58/0xac drivers/base/dd.c:1203 bind_store+0xf4/0x14c drivers/base/bus.c:267 drv_attr_store+0x80/0xa4 drivers/base/bus.c:125 sysfs_kf_write+0xe0/0x108 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x260/0x3b8 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x51c/0xa0c fs/read_write.c:687 ksys_write+0x12c/0x228 fs/read_write.c:739 __do_sys_write fs/read_write.c:750 [inline] __se_sys_write fs/read_write.c:747 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:747 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 Code: 17ffff8d 96eff548 d4210000 96eff546 (d4210000) ---[ end trace 0000000000000000 ]--- Tested on: commit: 0d839570 Merge tag 'soc-fixes-7.2-2' of git://git.kern.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git console output: https://syzkaller.appspot.com/x/log.txt?x=1224d7b9580000 kernel config: https://syzkaller.appspot.com/x/.config?x=ecdef466b08b9772 dashboard link: https://syzkaller.appspot.com/bug?extid=901ca72278dfd89daf58 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 userspace arch: arm64 patch: https://syzkaller.appspot.com/x/patch.diff?x=141777b9580000