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 323C7156F45 for ; Sun, 22 Feb 2026 11:33:33 +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=1771760014; cv=none; b=NXvqNT8qmkBS/GZIUhH+QS2KqEM4YSCfbtl6IrMHifL0j9tHpvm871KCUXsTgPJ6lqwmB8JFpRy6YuQ4gwn2akgWGhaoqm+z34m9Oy2JioSoIHNc5v3+ft52MkK33l7W/02Rf/kvKGw88JqIJ+GTPeITJEx46J5v3jWBtsM2no4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771760014; c=relaxed/simple; bh=TIoIQXVxWWvjYy6RXPnuWDpv/W8fZW7k3JtQ2Oidu0Y=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=N/srROnwUICHngHnvKPBd4ql1Bm+u+YOPPeeLh0LQjUbLWlsioPvxMVcd+X65mwsnVt+CUNP+3NNcoAmvHJ1ILJfHYsmMKIt7jH23xphC3sBCRBVMZZOdIgdfjlnYskyiLTRYVo+RvOnjeXWcHtvurnnedTthg9DA5Fp4qugWx0= 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 006d021491bc7-6798747187eso64879980eaf.1 for ; Sun, 22 Feb 2026 03:33:32 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1771760012; x=1772364812; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=51o/CHXrcVPSu6PBlSrHsvpwGCG4OoYsvck4RwugYzU=; b=f6bNKC448T+l1HENw58LXlKO0fqlvp0r+R4w5RZrslkZnJ1/+LcOFt5LiJIL+m2Bg0 /t9D6rEPxg6UPpy12nsniKoHUsq2rbDxuZrxb9Rf20WruNpDf7Ec1me/vbNdsew3LbLq mL+wobyHpyHBd6waTBNSXPSbqogUVd24TmLa4JCc1v0MCGY82DPWyJ9UtBm+GpyPXB8B d6iP7XOZHvMbuJOSSU4nGFS5ersJEG4BUzAywuCLRFBVD0jmslqZHCJYVHi63F5uotjh v2TSVmo/NRu9yp/sktYg9W7JhserWiKYa5dctWbamGW/wGv1Vo/8xA0IgZQgr8xnkOCy TdIA== X-Forwarded-Encrypted: i=1; AJvYcCVwIFR+yG0tVxfPXr9Khi3MRbMDJPMs9i15c40cd66gc9LM2VfdVbDkvnusGN1AJSGa0YpM1kY6yEtITyY=@vger.kernel.org X-Gm-Message-State: AOJu0Yx++bR4Zqy6JMOQvbBboGl+fstQsIKlqXqk59MQ0dEUAk+AA/qb Sh+fyRbhx4eQ10nmO5GvlcJijOXElStH8BkTTsL6hPsjEZXkFYBZC/IlYuBX/KE/UVbAZQHhtfo 2/+8kQebvnI4tbNZ17ggMLddpcvJbkT8q9b2uYXFNKbGPF4oJu4pNUo46K2E= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:228a:b0:66e:58f3:b4e9 with SMTP id 006d021491bc7-679c4507b4bmr3388322eaf.67.1771760012119; Sun, 22 Feb 2026 03:33:32 -0800 (PST) Date: Sun, 22 Feb 2026 03:33:32 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <699ae98c.050a0220.340abe.0d31.GAE@google.com> Subject: [syzbot] [kernel?] WARNING in __ioremap_caller From: syzbot To: bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, linux-kernel@vger.kernel.org, luto@kernel.org, mingo@redhat.com, peterz@infradead.org, syzkaller-bugs@googlegroups.com, tglx@kernel.org, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 2961f841b025 Merge tag 'turbostat-2026.02.14' of git://git.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17674594580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6259cfbe2d15cac4 dashboard link: https://syzkaller.appspot.com/bug?extid=49b1021becba70c1f3f6 compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/4db266f4e980/disk-2961f841.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/9ec134f45048/vmlinux-2961f841.xz kernel image: https://storage.googleapis.com/syzbot-assets/5ba4f405d712/bzImage-2961f841.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+49b1021becba70c1f3f6@syzkaller.appspotmail.com ioremap: invalid physical address a729678abbd17117 ------------[ cut here ]------------ 1 WARNING: arch/x86/mm/ioremap.c:206 at __ioremap_caller.isra.0.cold+0x59/0xa4 arch/x86/mm/ioremap.c:206, CPU#0: syz.1.4191/26162 Modules linked in: CPU: 0 UID: 0 PID: 26162 Comm: syz.1.4191 Tainted: G U L syzkaller #0 PREEMPT(full) Tainted: [U]=USER, [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:__ioremap_caller.isra.0.cold+0x59/0xa4 arch/x86/mm/ioremap.c:206 Code: 48 8b 34 24 48 c7 c7 e0 fc ab 8b e8 30 1d 01 00 e9 61 c2 97 00 e8 76 ca e6 00 4c 89 ee 48 c7 c7 40 fb ab 8b e8 17 1d 01 00 90 <0f> 0b 90 e9 41 c2 97 00 e8 59 ca e6 00 41 0f b6 d7 4c 89 ee 48 c7 RSP: 0018:ffffc90004d1f718 EFLAGS: 00010286 RAX: 0000000000000032 RBX: 1ffff920009a3ee7 RCX: 0000000000000000 RDX: 0000000000000032 RSI: ffffffff81e6f929 RDI: fffff520009a3ed4 RBP: 0000000000000040 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000038c68 R12: a729678abbd17156 R13: a729678abbd17117 R14: 0000000000000000 R15: 0000000000029ca5 FS: 00007fc5be1016c0(0000) GS:ffff888124351000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32306ff8 CR3: 00000000831e0000 CR4: 00000000003526f0 Call Trace: ioremap_cache arch/x86/mm/ioremap.c:436 [inline] arch_memremap_wb+0x23/0x40 arch/x86/mm/ioremap.c:508 memremap+0x1cb/0x7d0 kernel/iomem.c:95 pcibios_device_add+0x101/0x600 arch/x86/pci/common.c:652 pci_device_add+0xd4f/0x1810 drivers/pci/probe.c:2761 pci_scan_single_device drivers/pci/probe.c:2793 [inline] pci_scan_single_device+0x1d0/0x240 drivers/pci/probe.c:2779 pci_scan_slot+0x1c9/0x7c0 drivers/pci/probe.c:2876 pci_scan_child_bus_extend+0x6b/0x7b0 drivers/pci/probe.c:3095 pci_scan_child_bus drivers/pci/probe.c:3208 [inline] pci_rescan_bus+0x18/0x40 drivers/pci/probe.c:3499 rescan_store+0xfb/0x130 drivers/pci/pci-sysfs.c:472 bus_attr_store+0x74/0xb0 drivers/base/bus.c:172 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:142 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:352 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6ac/0x1070 fs/read_write.c:688 ksys_write+0x12a/0x250 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc5bd19c629 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc5be101028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fc5bd415fa0 RCX: 00007fc5bd19c629 RDX: 0000000000000001 RSI: 0000200000000200 RDI: 0000000000000003 RBP: 00007fc5bd232b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc5bd416038 R14: 00007fc5bd415fa0 R15: 00007ffc328057a8 --- 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 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