program: r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000280)='/dev/comedi3\x00', 0x0, 0x0) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000180)={'pcl818\x00', [0x1, 0x4, 0x3, 0x2, 0xa, 0xcc9, 0xf, 0x7, 0x5, 0x0, 0xf00, 0x1, 0x4, 0x1, 0x6, 0x101, 0x20009, 0x1a449, 0x3, 0x40000007, 0x9d, 0xcaa7, 0x4, 0x20001e58, 0x4, 0xe6a, 0x3c, 0xc, 0x5, 0x0, 0xfffff7f8]}) [ 75.204003][ T4683] Bluetooth: hci0: command tx timeout [ 75.242427][ T5337] comedi comedi3: pcl818: I/O port conflict (0x1,16) [ 75.245283][ T5337] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] SMP KASAN NOPTI [ 75.250160][ T5337] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 75.253495][ T5337] CPU: 0 UID: 0 PID: 5337 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 75.256942][ T5337] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 75.261113][ T5337] RIP: 0010:pcl818_ai_cancel+0x69/0x3f0 [ 75.263381][ T5337] Code: 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 e9 c5 6b 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 c8 c5 6b f9 4d 8b 24 24 48 83 c3 [ 75.271660][ T5337] RSP: 0018:ffffc9000d4ff9d8 EFLAGS: 00010206 [ 75.274351][ T5337] RAX: 0000000000000005 RBX: ffff88803f73e100 RCX: ffff88801f9024c0 [ 75.277802][ T5337] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88803e4a5000 [ 75.281364][ T5337] RBP: 0000000000000001 R08: ffff88803e4a512f R09: 1ffff11007c94a25 [ 75.284546][ T5337] R10: dffffc0000000000 R11: ffffffff88bd5890 R12: 0000000000000028 [ 75.287894][ T5337] R13: dffffc0000000000 R14: ffff88803e4a5000 R15: dffffc0000000000 [ 75.291283][ T5337] FS: 00007efefc6956c0(0000) GS:ffff88808d679000(0000) knlGS:0000000000000000 [ 75.294981][ T5337] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.297522][ T5337] CR2: 00007efefc694fc8 CR3: 000000003feb2000 CR4: 0000000000352ef0 [ 75.300778][ T5337] Call Trace: [ 75.302125][ T5337] [ 75.303437][ T5337] pcl818_detach+0x66/0xd0 [ 75.305378][ T5337] comedi_device_detach_locked+0x178/0x750 [ 75.307916][ T5337] comedi_device_attach+0x5d4/0x720 [ 75.310085][ T5337] comedi_unlocked_ioctl+0x5ff/0x1020 [ 75.312329][ T5337] ? kasan_quarantine_put+0xdd/0x220 [ 75.314633][ T5337] ? lockdep_hardirqs_on+0x98/0x140 [ 75.316841][ T5337] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 75.319296][ T5337] ? do_futex+0x333/0x420 [ 75.321151][ T5337] ? __fget_files+0x2a/0x420 [ 75.323108][ T5337] ? __fget_files+0x3a0/0x420 [ 75.325112][ T5337] ? __fget_files+0x2a/0x420 [ 75.327113][ T5337] ? bpf_lsm_file_ioctl+0x9/0x20 [ 75.329777][ T5337] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 75.332592][ T5337] __se_sys_ioctl+0xfc/0x170 [ 75.334765][ T5337] do_syscall_64+0xfa/0xf80 [ 75.336985][ T5337] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.340290][ T5337] ? clear_bhb_loop+0x60/0xb0 [ 75.342761][ T5337] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.345304][ T5337] RIP: 0033:0x7efefb78f7c9 [ 75.347133][ T5337] 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 [ 75.355201][ T5337] RSP: 002b:00007efefc695038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 75.358577][ T5337] RAX: ffffffffffffffda RBX: 00007efefb9e5fa0 RCX: 00007efefb78f7c9 [ 75.361816][ T5337] RDX: 0000200000000180 RSI: 0000000040946400 RDI: 0000000000000003 [ 75.365089][ T5337] RBP: 00007efefb813f91 R08: 0000000000000000 R09: 0000000000000000 [ 75.368437][ T5337] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.371765][ T5337] R13: 00007efefb9e6038 R14: 00007efefb9e5fa0 R15: 00007ffcef0fd908 [ 75.375256][ T5337] [ 75.376464][ T5337] Modules linked in: [ 75.378489][ T5337] ---[ end trace 0000000000000000 ]--- [ 75.385064][ T5337] RIP: 0010:pcl818_ai_cancel+0x69/0x3f0 [ 75.389624][ T5337] Code: 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 e9 c5 6b 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 c8 c5 6b f9 4d 8b 24 24 48 83 c3 [ 75.398241][ T5337] RSP: 0018:ffffc9000d4ff9d8 EFLAGS: 00010206 [ 75.401488][ T5337] RAX: 0000000000000005 RBX: ffff88803f73e100 RCX: ffff88801f9024c0 [ 75.404746][ T5337] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88803e4a5000 [ 75.408679][ T5337] RBP: 0000000000000001 R08: ffff88803e4a512f R09: 1ffff11007c94a25 [ 75.412118][ T5337] R10: dffffc0000000000 R11: ffffffff88bd5890 R12: 0000000000000028 [ 75.415931][ T5337] R13: dffffc0000000000 R14: ffff88803e4a5000 R15: dffffc0000000000 [ 75.419852][ T5337] FS: 00007efefc6956c0(0000) GS:ffff88808d679000(0000) knlGS:0000000000000000 [ 75.423684][ T5337] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.426458][ T5337] CR2: 00007efefc694fc8 CR3: 000000003feb2000 CR4: 0000000000352ef0 [ 75.430229][ T5337] Kernel panic - not syncing: Fatal exception [ 75.432996][ T5337] Kernel Offset: disabled [ 75.434809][ T5337] Rebooting in 86400 seconds..