From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f208.google.com (mail-il1-f208.google.com [209.85.166.208]) (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 2E0093128B0 for ; Mon, 13 Oct 2025 21:58:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.208 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760392712; cv=none; b=qswWPFbYg587B8++d3dtlZw0NXiA04BDZmSPNC7Ih3auIqJBmdsnGrUc/AS0nwh8eQZmDVyLHrhqgKA1fQwMZKKQQGftGsaP1XaK06kZ6U661wSRmTqXFeV2gJ2TNFI8E1yQw9s2Pc3h0G2Ba/Sk5XPmiDb7LxjjHbn06ZYiGJY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760392712; c=relaxed/simple; bh=dri1T1aBIrax0bSq/AiIadftoBuhkH4eiMRYwruo3cE=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=UTQcbgj5aMoji4v8cLkc1+ieGUuyhK9UQlYLmUatGnBYmrWSFO59h0MS7Hxb+IC/J2nNUvyjSlA0DA6ZeecgoL6ouZ+fy7e4ZzjYVk/8Zgz6N5ExHzPC6GIvv9jj7uPcYr8O5/mda1v93zPxNwP2IesJkgbJaUxlmxroN3lJBVo= 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=209.85.166.208 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-il1-f208.google.com with SMTP id e9e14a558f8ab-42486b1d287so288791225ab.0 for ; Mon, 13 Oct 2025 14:58:30 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1760392710; x=1760997510; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=YTn5Q6x07H9U5K5DPRcQ35V2TEuBbiD24I9VW7bfNdU=; b=l7vcAbE8Rqb7zEW40m/fTZSW0eWCZ6mqd6DdmHc5GtAfqL0A6wVP6Dz1sCZNhnZNLg HNLKKzE5POHktg4l9iqq9MHSR2B3PifyxSwG19Asc9SX6fClxXcpG4/TGcVuHkH7wx3Q jp4jOQvsRZWFGU4pnAIHvxjBwraYdSrvLJao2YHySZrMGRdiojsqkxagmJUfkdMURt5o DE3uMtFBKtUwkwks14qUA0nv5dWEaCpwm7Nmc17ladXC6JP8IeMXotVLS6rmLBrHxth5 tPJsHMu0HYwOYSsWlIHYVJx0KukmaGTHrUV7AaFxwpIeKEegMCS1tHHlL3dR4z1ssmBw 8PRw== X-Forwarded-Encrypted: i=1; AJvYcCWTGRYneHWWSww8NbOoTIcip2ianc0FrWsa69XPNm3uSIZgNfgrjzHs7a8vFgL+S+PyL3DuaIgovVklkko=@vger.kernel.org X-Gm-Message-State: AOJu0Yzjajlg1VnXlUkQReBf96JBepBc7fzlgtPj1dm9FIsajsF2KF+E BE3Sc0IFnVdrlZx8WXaF2bzPE5YkrTRrWej6eyhM5g+gpo5WBcskEC/NIGB1WqMJa5GzNoCqwPL Tvb0rDmQizDWpA0Y63m2Ds9CulzmyOHhdYsN23VGEqydvSRW0YxaWPChT7J8= X-Google-Smtp-Source: AGHT+IHaxpFguq/B66A1ghbKvobMUaCj15kcEDOHi2za6akQMyPJ/+1vXW71RktKndoNDpowFCWRPKI/5+QbV/obtxSFvOh2rfZC Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1707:b0:424:7bb:775c with SMTP id e9e14a558f8ab-42f8741c253mr222225565ab.31.1760392710286; Mon, 13 Oct 2025 14:58:30 -0700 (PDT) Date: Mon, 13 Oct 2025 14:58:30 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68ed7606.a70a0220.b3ac9.0020.GAE@google.com> Subject: [syzbot] [input?] BUG: unable to handle kernel paging request in uinput_destroy_device From: syzbot To: dmitry.torokhov@gmail.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 2b763d465239 Add linux-next specific files for 20251010 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=12f06542580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d4057daadbd2196b dashboard link: https://syzkaller.appspot.com/bug?extid=51f9b5e3c5a307417c1b compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13cbf458580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/5ca8031cf31f/disk-2b763d46.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/00ba418b156f/vmlinux-2b763d46.xz kernel image: https://storage.googleapis.com/syzbot-assets/a18ef5d6f602/bzImage-2b763d46.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+51f9b5e3c5a307417c1b@syzkaller.appspotmail.com BUG: unable to handle page fault for address: fffffffffffffff8 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD df3d067 P4D df3d067 PUD df3f067 PMD 0 Oops: Oops: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 6106 Comm: syz.0.45 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:swake_up_locked kernel/sched/swait.c:30 [inline] RIP: 0010:complete_with_flags kernel/sched/completion.c:29 [inline] RIP: 0010:complete+0x99/0x1b0 kernel/sched/completion.c:52 Code: 89 e7 e8 8a 4e 8b 00 4d 8b 3c 24 4d 39 e7 0f 84 d4 00 00 00 49 8d 7f f8 48 89 f8 48 c1 e8 03 80 3c 28 00 74 05 e8 67 4e 8b 00 <49> 8b 7f f8 be 03 00 00 00 31 d2 e8 17 5c f6 ff 4c 89 ff e8 9f eb RSP: 0018:ffffc90003a3fcd8 EFLAGS: 00010046 RAX: 1fffffffffffffff RBX: ffffc90003bafa58 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffffffffffffff8 RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000747f78 R12: ffffc90003bafa98 R13: 0000000000000001 R14: 0000000000000a06 R15: 0000000000000000 FS: 0000555564ca1500(0000) GS:ffff888125e2b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff8 CR3: 000000007959e000 CR4: 00000000003526f0 Call Trace: uinput_flush_requests drivers/input/misc/uinput.c:213 [inline] uinput_destroy_device+0x11a/0x8c0 drivers/input/misc/uinput.c:298 uinput_release+0x3b/0x50 drivers/input/misc/uinput.c:758 __fput+0x44c/0xa70 fs/file_table.c:468 task_work_run+0x1d4/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xe9/0x130 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe54718eec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe72996ff8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 000000000001bc2c RCX: 00007fe54718eec9 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007fe5473e7da0 R08: 0000000000000001 R09: 00000006729972ef R10: 0000001b2f220000 R11: 0000000000000246 R12: 00007fe5473e5fac R13: 00007fe5473e5fa0 R14: ffffffffffffffff R15: 00007ffe72997110 Modules linked in: CR2: fffffffffffffff8 ---[ end trace 0000000000000000 ]--- RIP: 0010:swake_up_locked kernel/sched/swait.c:30 [inline] RIP: 0010:complete_with_flags kernel/sched/completion.c:29 [inline] RIP: 0010:complete+0x99/0x1b0 kernel/sched/completion.c:52 Code: 89 e7 e8 8a 4e 8b 00 4d 8b 3c 24 4d 39 e7 0f 84 d4 00 00 00 49 8d 7f f8 48 89 f8 48 c1 e8 03 80 3c 28 00 74 05 e8 67 4e 8b 00 <49> 8b 7f f8 be 03 00 00 00 31 d2 e8 17 5c f6 ff 4c 89 ff e8 9f eb RSP: 0018:ffffc90003a3fcd8 EFLAGS: 00010046 RAX: 1fffffffffffffff RBX: ffffc90003bafa58 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffffffffffffff8 RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000747f78 R12: ffffc90003bafa98 R13: 0000000000000001 R14: 0000000000000a06 R15: 0000000000000000 FS: 0000555564ca1500(0000) GS:ffff888125e2b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff8 CR3: 000000007959e000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 89 e7 mov %esp,%edi 2: e8 8a 4e 8b 00 call 0x8b4e91 7: 4d 8b 3c 24 mov (%r12),%r15 b: 4d 39 e7 cmp %r12,%r15 e: 0f 84 d4 00 00 00 je 0xe8 14: 49 8d 7f f8 lea -0x8(%r15),%rdi 18: 48 89 f8 mov %rdi,%rax 1b: 48 c1 e8 03 shr $0x3,%rax 1f: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) 23: 74 05 je 0x2a 25: e8 67 4e 8b 00 call 0x8b4e91 * 2a: 49 8b 7f f8 mov -0x8(%r15),%rdi <-- trapping instruction 2e: be 03 00 00 00 mov $0x3,%esi 33: 31 d2 xor %edx,%edx 35: e8 17 5c f6 ff call 0xfff65c51 3a: 4c 89 ff mov %r15,%rdi 3d: e8 .byte 0xe8 3e: 9f lahf 3f: eb .byte 0xeb --- 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