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AHgh+RojDHqdMeuIpq8qT7YbQkymmsXEuSpXKQJz/VTys9s6V/lwZdrYQ54s3tjK/VR5PeO2O1MmzlzSzgWl+w==@vger.kernel.org X-Gm-Message-State: AOJu0YyHqp3ls62gHSg+f9SmQmTF2j1wywFa4snBaMIDgxtoMj04Ld6k R1R9mKsRIcHZx/VbzBQcaTggdFjMqLN5pT2jSwq/uqr8JYvYvmz2BF21RHv8WglqxJX2R2njlkb CtKf1JGonqNTwHX+vYerMsYI+CeKC+C6qAlgWAVa7Zj5NmKvOEKYaR/+mPIg= Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:159d:b0:489:352c:5153 with SMTP id 5614622812f47-4ab6a113d99mr3129906b6e.21.1785009395234; Sat, 25 Jul 2026 12:56:35 -0700 (PDT) Date: Sat, 25 Jul 2026 12:56:35 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a6514f3.70955b6c.323240.0025.GAE@google.com> Subject: [syzbot] [input?] [usb?] WARNING in cm109_input_ev/usb_submit_urb (2) From: syzbot To: dmitry.torokhov@gmail.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: cc2b5f627e8c Add linux-next specific files for 20260714 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=128a1746580000 kernel config: https://syzkaller.appspot.com/x/.config?x=2290ccbf984c524f dashboard link: https://syzkaller.appspot.com/bug?extid=25031f01508bf55c62ca compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=117b92b9580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/6836f8efb1da/disk-cc2b5f62.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/0109d3477cc7/vmlinux-cc2b5f62.xz kernel image: https://storage.googleapis.com/syzbot-assets/c2e49e350bbf/bzImage-cc2b5f62.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+25031f01508bf55c62ca@syzkaller.appspotmail.com ------------[ cut here ]------------ URB ffff88802bec5e00 submitted while active WARNING: drivers/usb/core/urb.c:379 at usb_submit_urb+0x79/0x18b0 drivers/usb/core/urb.c:379, CPU#0: syz.1.696/7407 Modules linked in: CPU: 0 UID: 0 PID: 7407 Comm: syz.1.696 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 RIP: 0010:usb_submit_urb+0x7c/0x18b0 drivers/usb/core/urb.c:379 Code: 4c 89 f0 48 c1 e8 03 80 3c 28 00 74 08 4c 89 f7 e8 f9 92 4d fb 49 83 3e 00 74 40 e8 0e 3c e1 fa 48 8d 3d 87 f1 f8 08 48 89 de <67> 48 0f b9 3a b8 f0 ff ff ff eb 11 e8 f3 3b e1 fa eb 05 e8 ec 3b RSP: 0018:ffffc900054ff3f8 EFLAGS: 00010293 RAX: ffffffff86e467a2 RBX: ffff88802bec5e00 RCX: ffff88803151be80 RDX: 0000000000000000 RSI: ffff88802bec5e00 RDI: ffffffff8fdd5930 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8e3c3880 R12: 1ffff1100b9e9d0a R13: dffffc0000000000 R14: ffff88802bec5e08 R15: 0000000000000820 FS: 00007f395df0e6c0(0000) GS:ffff8881259f2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f29938eb580 CR3: 0000000040c08000 CR4: 00000000003526f0 Call Trace: cm109_submit_buzz_toggle drivers/input/misc/cm109.c:351 [inline] cm109_toggle_buzzer_async drivers/input/misc/cm109.c:484 [inline] cm109_input_ev+0x1d1/0x3b0 drivers/input/misc/cm109.c:615 input_event_dispose+0x80/0x6b0 drivers/input/input.c:322 input_inject_event+0x1fa/0x310 drivers/input/input.c:424 kd_sound_helper+0x101/0x210 drivers/tty/vt/keyboard.c:257 input_handler_for_each_handle+0x101/0x1c0 drivers/input/input.c:2540 kd_mksound+0x96/0x130 drivers/tty/vt/keyboard.c:281 handle_ascii drivers/tty/vt/vt.c:2382 [inline] do_con_trol drivers/tty/vt/vt.c:2699 [inline] do_con_write+0x2f5a/0x5540 drivers/tty/vt/vt.c:3325 con_write+0x31/0x2e0 drivers/tty/vt/vt.c:3661 process_output_block drivers/tty/n_tty.c:557 [inline] n_tty_write+0xd4f/0x11e0 drivers/tty/n_tty.c:2366 iterate_tty_write drivers/tty/tty_io.c:1006 [inline] file_tty_write+0x50b/0x980 drivers/tty/tty_io.c:1081 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61e/0xbb0 fs/read_write.c:687 ksys_write+0x156/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x17b/0x530 arch/x86/entry/syscall_64.c:85 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f395e8ade99 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:00007f395df0e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f395eb35fa0 RCX: 00007f395e8ade99 RDX: 0000000000001006 RSI: 0000200000002080 RDI: 0000000000000004 RBP: 00007f395e943eaf R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f395eb36038 R14: 00007f395eb35fa0 R15: 00007fff65968248 ---------------- Code disassembly (best guess): 0: 4c 89 f0 mov %r14,%rax 3: 48 c1 e8 03 shr $0x3,%rax 7: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) b: 74 08 je 0x15 d: 4c 89 f7 mov %r14,%rdi 10: e8 f9 92 4d fb call 0xfb4d930e 15: 49 83 3e 00 cmpq $0x0,(%r14) 19: 74 40 je 0x5b 1b: e8 0e 3c e1 fa call 0xfae13c2e 20: 48 8d 3d 87 f1 f8 08 lea 0x8f8f187(%rip),%rdi # 0x8f8f1ae 27: 48 89 de mov %rbx,%rsi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: b8 f0 ff ff ff mov $0xfffffff0,%eax 34: eb 11 jmp 0x47 36: e8 f3 3b e1 fa call 0xfae13c2e 3b: eb 05 jmp 0x42 3d: e8 .byte 0xe8 3e: ec in (%dx),%al 3f: 3b .byte 0x3b --- 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