program: r0 = openat$comedi(0xffffff9c, &(0x7f0000000040)='/dev/comedi3\x00', 0x2000, 0x0) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000140)={'pcl818\x00', [0xfffffffb, 0x2166, 0x2, 0x100000, 0x88d6, 0x8f, 0xfffefff9, 0x8, 0x1, 0xffffffff, 0x200, 0xfff, 0x344, 0x1, 0x2, 0x8, 0x9, 0x7, 0x3, 0xe, 0x0, 0x0, 0x80, 0x7ff, 0x1, 0x8, 0x4, 0x7e2, 0x8, 0xf3, 0x1]}) [ 76.273418][ T4690] Bluetooth: hci0: command tx timeout [ 76.308239][ T5343] comedi comedi3: pcl818: I/O port conflict (0xfffffffffffffffb,16) [ 76.330365][ T5343] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] SMP KASAN NOPTI [ 76.338621][ T5343] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 76.342467][ T5343] CPU: 0 UID: 0 PID: 5343 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.346172][ T5343] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 76.350727][ T5343] RIP: 0010:pcl818_ai_cancel+0x69/0x3f0 [ 76.353349][ T5343] Code: 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 f9 6f 63 f9 48 8b 03 48 89 04 24 49 83 c4 28 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 d8 6f 63 f9 4d 8b 24 24 48 83 c3 [ 76.361845][ T5343] RSP: 0018:ffffc9000b5879d8 EFLAGS: 00010206 [ 76.364324][ T5343] RAX: 0000000000000005 RBX: ffff88800b631300 RCX: 0000000000100000 [ 76.367642][ T5343] RDX: ffffc90020802000 RSI: 00000000000009e6 RDI: 00000000000009e7 [ 76.370658][ T5343] RBP: 0000000000000001 R08: ffff88804088692f R09: 1ffff11008110d25 [ 76.373883][ T5343] R10: dffffc0000000000 R11: ffffffff88c60730 R12: 0000000000000028 [ 76.377466][ T5343] R13: dffffc0000000000 R14: ffff888040886800 R15: dffffc0000000000 [ 76.380935][ T5343] FS: 00007fc7aa8ea6c0(0000) GS:ffff88808d23e000(0000) knlGS:0000000000000000 [ 76.384641][ T5343] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.387437][ T5343] CR2: 00007fc7a9bdb3b8 CR3: 000000001203a000 CR4: 0000000000352ef0 [ 76.390779][ T5343] Call Trace: [ 76.392247][ T5343] [ 76.393591][ T5343] pcl818_detach+0x66/0xd0 [ 76.395431][ T5343] comedi_device_detach_locked+0x178/0x750 [ 76.397801][ T5343] comedi_device_attach+0x5d4/0x720 [ 76.400079][ T5343] comedi_unlocked_ioctl+0x673/0x10b0 [ 76.402332][ T5343] ? kasan_quarantine_put+0xdd/0x220 [ 76.404860][ T5343] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 76.407472][ T5343] ? do_futex+0x333/0x420 [ 76.409374][ T5343] ? __fget_files+0x2a/0x420 [ 76.411274][ T5343] ? __fget_files+0x3a0/0x420 [ 76.413333][ T5343] ? __fget_files+0x2a/0x420 [ 76.415267][ T5343] ? bpf_lsm_file_ioctl+0x9/0x20 [ 76.417541][ T5343] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 76.420085][ T5343] __se_sys_ioctl+0xfc/0x170 [ 76.422084][ T5343] do_syscall_64+0xfa/0xf80 [ 76.424111][ T5343] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.426814][ T5343] ? clear_bhb_loop+0x60/0xb0 [ 76.428966][ T5343] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.431484][ T5343] RIP: 0033:0x7fc7a998f7c9 [ 76.433370][ T5343] 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 [ 76.441648][ T5343] RSP: 002b:00007fc7aa8ea038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 76.445284][ T5343] RAX: ffffffffffffffda RBX: 00007fc7a9be5fa0 RCX: 00007fc7a998f7c9 [ 76.449028][ T5343] RDX: 0000200000000140 RSI: 0000000040946400 RDI: 0000000000000003 [ 76.452773][ T5343] RBP: 00007fc7a9a13f91 R08: 0000000000000000 R09: 0000000000000000 [ 76.456362][ T5343] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.459805][ T5343] R13: 00007fc7a9be6038 R14: 00007fc7a9be5fa0 R15: 00007ffdacfe2b18 [ 76.463089][ T5343] [ 76.464485][ T5343] Modules linked in: [ 76.466779][ T5343] ---[ end trace 0000000000000000 ]--- [ 76.491474][ T5343] RIP: 0010:pcl818_ai_cancel+0x69/0x3f0 [ 76.494158][ T5343] Code: 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 f9 6f 63 f9 48 8b 03 48 89 04 24 49 83 c4 28 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 d8 6f 63 f9 4d 8b 24 24 48 83 c3 [ 76.503896][ T5343] RSP: 0018:ffffc9000b5879d8 EFLAGS: 00010206 [ 76.507288][ T5343] RAX: 0000000000000005 RBX: ffff88800b631300 RCX: 0000000000100000 [ 76.511775][ T5343] RDX: ffffc90020802000 RSI: 00000000000009e6 RDI: 00000000000009e7 [ 76.515344][ T5343] RBP: 0000000000000001 R08: ffff88804088692f R09: 1ffff11008110d25 [ 76.519209][ T5343] R10: dffffc0000000000 R11: ffffffff88c60730 R12: 0000000000000028 [ 76.522698][ T5343] R13: dffffc0000000000 R14: ffff888040886800 R15: dffffc0000000000 [ 76.526239][ T5343] FS: 00007fc7aa8ea6c0(0000) GS:ffff88808d23e000(0000) knlGS:0000000000000000 [ 76.530725][ T5343] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.533765][ T5343] CR2: 00007fc7a9bbb558 CR3: 000000001203a000 CR4: 0000000000352ef0 [ 76.537507][ T5343] Kernel panic - not syncing: Fatal exception [ 76.540583][ T5343] Kernel Offset: disabled [ 76.542415][ T5343] Rebooting in 86400 seconds..