program: socket(0x10, 0x803, 0x7) r0 = openat$comedi(0xffffffffffffff9c, &(0x7f000000b200)='/dev/comedi1\x00', 0x8040, 0x0) ioctl$BTRFS_IOC_QGROUP_CREATE(0xffffffffffffffff, 0x4010942a, &(0x7f0000000080)={0x0, 0x5}) io_uring_setup(0x35ff, &(0x7f0000000000)={0x0, 0x840, 0x8000, 0x3, 0x324}) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000100)={'pcl818\x00', [0x0, 0x2, 0x3, 0x80000001, 0xfffffffb, 0x6f8, 0x4d7, 0x4, 0xffffffff, 0x4, 0x0, 0x401, 0x3, 0x8001, 0x9, 0x2, 0xa, 0x1, 0x0, 0x5, 0x8, 0x10, 0xfe, 0x6, 0x54, 0x10001, 0x8, 0xd308, 0x10001, 0x8, 0x1]}) [ 76.273484][ T4690] Bluetooth: hci0: command tx timeout [ 76.362052][ T5344] comedi comedi1: pcl818: a I/O base address must be specified [ 76.369829][ T5344] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] SMP KASAN NOPTI [ 76.375007][ T5344] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 76.378655][ T5344] CPU: 0 UID: 0 PID: 5344 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.382542][ T5344] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 76.387247][ T5344] RIP: 0010:pcl818_ai_cancel+0x69/0x3f0 [ 76.389930][ T5344] 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 [ 76.398525][ T5344] RSP: 0018:ffffc9000b5979d8 EFLAGS: 00010206 [ 76.401226][ T5344] RAX: 0000000000000005 RBX: ffff88800062c080 RCX: 0000000000100000 [ 76.404602][ T5344] RDX: ffffc90021003000 RSI: 00000000000008d1 RDI: 00000000000008d2 [ 76.408155][ T5344] RBP: 0000000000000001 R08: ffff88804088592f R09: 1ffff11008110b25 [ 76.411899][ T5344] R10: dffffc0000000000 R11: ffffffff88c60730 R12: 0000000000000028 [ 76.415147][ T5344] R13: dffffc0000000000 R14: ffff888040885800 R15: dffffc0000000000 [ 76.418438][ T5344] FS: 00007fc7aa8c96c0(0000) GS:ffff88808d23e000(0000) knlGS:0000000000000000 [ 76.422294][ T5344] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.425174][ T5344] CR2: 00007fa28e86d42c CR3: 000000001203a000 CR4: 0000000000352ef0 [ 76.428668][ T5344] Call Trace: [ 76.430184][ T5344] [ 76.431514][ T5344] pcl818_detach+0x66/0xd0 [ 76.433525][ T5344] comedi_device_detach_locked+0x178/0x750 [ 76.436007][ T5344] comedi_device_attach+0x5d4/0x720 [ 76.438313][ T5344] comedi_unlocked_ioctl+0x673/0x10b0 [ 76.440679][ T5344] ? kasan_quarantine_put+0xdd/0x220 [ 76.443228][ T5344] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 76.445944][ T5344] ? do_futex+0x333/0x420 [ 76.447840][ T5344] ? io_uring_create+0x32/0x940 [ 76.450019][ T5344] ? __fget_files+0x2a/0x420 [ 76.452040][ T5344] ? __fget_files+0x3a0/0x420 [ 76.454191][ T5344] ? __fget_files+0x2a/0x420 [ 76.456296][ T5344] ? bpf_lsm_file_ioctl+0x9/0x20 [ 76.458499][ T5344] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 76.461141][ T5344] __se_sys_ioctl+0xfc/0x170 [ 76.463186][ T5344] do_syscall_64+0xfa/0xf80 [ 76.465447][ T5344] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.468273][ T5344] ? clear_bhb_loop+0x60/0xb0 [ 76.470512][ T5344] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.473203][ T5344] RIP: 0033:0x7fc7a998f7c9 [ 76.475174][ T5344] 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 [ 76.482758][ T5344] RSP: 002b:00007fc7aa8c9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 76.486137][ T5344] RAX: ffffffffffffffda RBX: 00007fc7a9be6090 RCX: 00007fc7a998f7c9 [ 76.489367][ T5344] RDX: 0000200000000100 RSI: 0000000040946400 RDI: 0000000000000003 [ 76.492807][ T5344] RBP: 00007fc7a9a13f91 R08: 0000000000000000 R09: 0000000000000000 [ 76.496222][ T5344] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.499549][ T5344] R13: 00007fc7a9be6128 R14: 00007fc7a9be6090 R15: 00007ffdacfe2b18 [ 76.502988][ T5344] [ 76.504431][ T5344] Modules linked in: [ 76.506502][ T5344] ---[ end trace 0000000000000000 ]--- [ 76.531874][ T5344] RIP: 0010:pcl818_ai_cancel+0x69/0x3f0 [ 76.534557][ T5344] 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 [ 76.543662][ T5344] RSP: 0018:ffffc9000b5979d8 EFLAGS: 00010206 [ 76.546262][ T5344] RAX: 0000000000000005 RBX: ffff88800062c080 RCX: 0000000000100000 [ 76.550158][ T5344] RDX: ffffc90021003000 RSI: 00000000000008d1 RDI: 00000000000008d2 [ 76.553823][ T5344] RBP: 0000000000000001 R08: ffff88804088592f R09: 1ffff11008110b25 [ 76.557514][ T5344] R10: dffffc0000000000 R11: ffffffff88c60730 R12: 0000000000000028 [ 76.561482][ T5344] R13: dffffc0000000000 R14: ffff888040885800 R15: dffffc0000000000 [ 76.565243][ T5344] FS: 00007fc7aa8c96c0(0000) GS:ffff88808d23e000(0000) knlGS:0000000000000000 [ 76.569780][ T5344] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.572730][ T5344] CR2: 00007fc7a9bbb558 CR3: 000000001203a000 CR4: 0000000000352ef0 [ 76.576064][ T5344] Kernel panic - not syncing: Fatal exception [ 76.579018][ T5344] Kernel Offset: disabled [ 76.580905][ T5344] Rebooting in 86400 seconds..