comedi comedi0: c6xdigio: I/O port conflict (0x109,3) ------------[ cut here ]------------ Unexpected driver unregister! WARNING: CPU: 0 PID: 8798 at drivers/base/driver.c:270 driver_unregister+0x8e/0xa0 drivers/base/driver.c:270 Modules linked in: CPU: 0 PID: 8798 Comm: syz.3.1629 Not tainted 6.1.148-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:driver_unregister+0x8e/0xa0 drivers/base/driver.c:270 Code: e8 27 1b 01 fd 48 89 df 5b 41 5e 41 5f e9 fa 5c ff ff e8 65 ff 7c fc eb 05 e8 5e ff 7c fc 48 c7 c7 80 c4 02 8b e8 d2 2b 49 fc <0f> 0b 5b 41 5e 41 5f c3 00 00 cc cc 00 00 cc cc 00 00 41 57 41 56 RSP: 0018:ffffc9000ebc7a58 EFLAGS: 00010246 RAX: c06535eae2f8e900 RBX: ffffffff8dc2ab00 RCX: 0000000000080000 RDX: ffffc9000d0d9000 RSI: 000000000000bdf5 RDI: 000000000000bdf6 RBP: 0000000000000001 R08: dffffc0000000000 R09: fffff52001d78edd R10: fffff52001d78edd R11: 1ffff92001d78edc R12: ffff88814b4e5800 R13: ffff88814b4e5920 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007fd8de2886c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2f97d3 CR3: 0000000057b5e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: comedi_device_detach+0x12d/0x6e0 drivers/comedi/drivers.c:206 comedi_device_attach+0x55d/0x650 drivers/comedi/drivers.c:1002 do_devconfig_ioctl drivers/comedi/comedi_fops.c:851 [inline] comedi_unlocked_ioctl+0x5ec/0xf20 drivers/comedi/comedi_fops.c:2151 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fd8dd38ebe9 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:00007fd8de288038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fd8dd5b5fa0 RCX: 00007fd8dd38ebe9 RDX: 0000200000000540 RSI: 0000000040946400 RDI: 0000000000000003 RBP: 00007fd8dd411e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fd8dd5b6038 R14: 00007fd8dd5b5fa0 R15: 00007ffd4834e088