From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f79.google.com (mail-ot1-f79.google.com [209.85.210.79]) (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 8FC7550276 for ; Thu, 6 Aug 2026 00:01:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.79 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785974493; cv=none; b=gyDZQSBfDMNu68C1y9/4IZayL0Uk5eN2iuHcQc3z4aCTAC2bPOKviGCcjaEMXEZSbgDMS/bUu1KkSGBdUVbBcUnao0NZ6H0gF6fc+X8SZjlA+ntWKI9mA2sI8AvOPR+2sVb1EwWZvjBWar1q6rPEpUQVO+JQ7tgqBTDo+H0j6fg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785974493; c=relaxed/simple; bh=0X3PrTL/RtAdUmpaffV1PstXYCpNmVtkGXTRgAqnRTI=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=TX75nErwVBV8xhkxgNBvzlEXMUy3xr+pYZIuu+NmA8eh8M0brvq3i4O5LwdAk/r6/d9mRL8DM6fJycVgtbZh3HpFKks69ei+2dNmXb7Ervm4hS6OMGBy8S+2ae/LWukuRXHqmMp6cObHdkVcJky16J/Edxocahp1T7pSDb4D14I= 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=209.85.210.79 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-ot1-f79.google.com with SMTP id 46e09a7af769-7e9e54e9cf5so1977223a34.0 for ; Wed, 05 Aug 2026 17:01:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1785974490; x=1786579290; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=b7DBNO0ieXEkykLkzPGHu2r+BEfqVczlkS7RonUcTmg=; b=nQK6L0Y1424BzFtxrPfGBnSJoNqsMqvdWqGdD1M9kgqw2kV6QDYY3hUrOIxyKgYnks S0MtE8dbsPCcGFGUt6vbgECwvTPM4GVGiQt2DWqYHIk0SpLEacbP55kkP31X4YRFUp+N 6CXBzYNf0deigUGMswEHwt+ezAgNJrm79RqGJhbJ3UMbfX8PKs7cgEFiIMktfi8HojWS /PsqjsH4hms4GV8LYdRj0wZWMVoCGjsENt47HQSfH/1g0g+erCa2U+dCnesj0bXuv36n oOFfWrQ/+ygANw2UDL/RBdKEc8HIUWSkdRLAkdjvL92QQxC6EVoNC48E83Jo3PfF2Vcc 8GyA== X-Forwarded-Encrypted: i=1; AHgh+Ro0keh+IjIOYlmi5AU3hH6KKL0/QFsy3Z5uLMBKHWskY4LImmyyfuWQhMZrKyZI/E5ggVVec5D++vn98QY=@vger.kernel.org X-Gm-Message-State: AOJu0YzAreksPGAdY69/LSmLM/RgVOzStS/ra2B91Mfgn6kflboagpZI 2Nwk1hspScuCRS5HXwmlF+gE6nbo8SM0VXBiNPvnmhSwISv6KARW4/981uyl2PDjiAfqw7gcZNy CuoE2/I2OGUoDzqBIBp3a0XHDlAN9TMH4rLvAZSHgM4T0jXM4upAU+v13NJM= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:2227:b0:6ab:13:b207 with SMTP id 006d021491bc7-6ae97025d62mr4762109eaf.27.1785974490653; Wed, 05 Aug 2026 17:01:30 -0700 (PDT) Date: Wed, 05 Aug 2026 17:01:30 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a73ceda.5aeeccc9.207e63.0008.GAE@google.com> Subject: [syzbot] [usb?] BUG: unable to handle kernel paging request in nhi_probe From: syzbot To: YehezkelShB@gmail.com, andreas.noever@gmail.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com, westeri@kernel.org Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 7235a3e71949 Merge branch 'for-next/core' into for-kernelci git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=11edb649580000 kernel config: https://syzkaller.appspot.com/x/.config?x=ccf4bea59f67007 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 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10678bb9580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1564acc6580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/fd45635beaae/disk-7235a3e7.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/d7d2e6507223/vmlinux-7235a3e7.xz kernel image: https://storage.googleapis.com/syzbot-assets/b5b5d8de4cea/Image-7235a3e7.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+901ca72278dfd89daf58@syzkaller.appspotmail.com EXT4-fs (nvme0n1p2): shut down requested (2) Aborting journal on device nvme0n1p2-8. Unable to handle kernel paging request at Unable to handle kernel paging request at virtual address ffff800092aad640 KASAN: probably user-memory-access in range [0x000000049556b200-0x000000049556b207] Mem abort info: ESR = 0x0000000096000007 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x07: level 3 translation fault Data abort info: ISV = 0, ISS = 0x00000007, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0 swapper pgtable: 4k pages, 48-bit VAs, pgdp=000000021b01f000 [ffff800092aad640] pgd=0000000000000000, p4d=10000002212fc003, pud=10000002212fd003, pmd=1000000105275403, pte=0000000000000000 Internal error: Oops: 0000000096000007 [#1] SMP Modules linked in: CPU: 0 UID: 0 PID: 4950 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 : __raw_readl arch/arm64/include/asm/io.h:84 [inline] pc : readl include/asm-generic/io.h:231 [inline] pc : ioread32 include/asm-generic/io.h:906 [inline] pc : nhi_probe+0xc0/0x730 drivers/thunderbolt/nhi.c:1198 lr : nhi_probe+0x34/0x730 drivers/thunderbolt/nhi.c:1187 sp : ffff8000982375b0 x29: ffff8000982375c0 x28: 1fffe0001a3c399a x27: ffff0000d1e1ccd0 x26: 1fffe0001a3c3998 x25: ffff0000c2f4a0d0 x24: 1fffe0001a3c3999 x23: dfff800000000000 x22: 1fffe0001a3c39a7 x21: ffff0000d1e1cd38 x20: ffff0000d1e1cc80 x19: ffff0000d1e1ccc8 x18: 1fffe00035bc9e28 x17: 0000000000000003 x16: ffff800088b07000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a590e28 x10: 0000000000000001 x9 : 0000000000000000 x8 : ffff800092aad640 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000801571a8 x2 : 0000000000000006 x1 : ffff0000c6899d40 x0 : 0000000000000000 Call trace: __raw_readl arch/arm64/include/asm/io.h:84 [inline] (P) readl include/asm-generic/io.h:231 [inline] (P) ioread32 include/asm-generic/io.h:906 [inline] (P) nhi_probe+0xc0/0x730 drivers/thunderbolt/nhi.c:1198 (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+0x84/0x98 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: d343feb6 9140e508 91190108 d503201f (b9400109) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: d343feb6 lsr x22, x21, #3 4: 9140e508 add x8, x8, #0x39, lsl #12 8: 91190108 add x8, x8, #0x640 c: d503201f nop * 10: b9400109 ldr w9, [x8] <-- trapping instruction --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup