program: r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000180)='/dev/comedi3\x00', 0xc00, 0x0) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f00000000c0)={'8255\x00', [0x40404f26, 0x5, 0x2, 0xd5db, 0xc, 0x9, 0xfff, 0x5c95238c, 0xa, 0x3bf, 0x802, 0x1600, 0x5, 0x20000001, 0x809, 0x400e1c8, 0x6, 0x7, 0x6, 0x19c, 0x6, 0x4, 0xb, 0x402, 0x10, 0x3, 0xef, 0x0, 0xa, 0x8000003, 0xdffffffd]}) r1 = openat$comedi(0xffffff9c, &(0x7f0000000440)='/dev/comedi0\x00', 0x101001, 0x0) ioctl$COMEDI_DEVCONFIG(r1, 0x40946400, &(0x7f0000000140)={'pcl818\x00', [0x3, 0x0, 0x3, 0x5, 0x2f, 0x7, 0x7, 0x5, 0xffe, 0x1, 0x0, 0x8500, 0x1003, 0x4, 0xffff, 0x10003, 0xffffffa8, 0x7ffffffd, 0x1ff, 0x3, 0x10, 0x0, 0x8, 0xe2df, 0x746f, 0x8, 0x5, 0x3, 0x0, 0x4, 0x8049]}) r2 = bpf$MAP_CREATE(0x0, &(0x7f0000000280)=ANY=[@ANYBLOB="0200000004000000e27f000001"], 0x50) bpf$PROG_LOAD(0x5, &(0x7f00000002c0)={0x11, 0xc, &(0x7f0000000480)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r2, @ANYBLOB="0000000000000000b7080000134c2651638af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b704000000000000850000000300000095"], &(0x7f0000000e80)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) [ 85.457471][ T5304] Bluetooth: hci0: command tx timeout [ 85.517589][ T5326] comedi comedi3: 8255: I/O port conflict (0x40404f26,4) [ 85.520789][ T5326] comedi comedi3: 8255: I/O port conflict (0x5,4) [ 85.523624][ T5326] comedi comedi3: 8255: I/O port conflict (0x2,4) [ 85.537124][ T5326] comedi comedi3: 8255: I/O port conflict (0xc,4) [ 85.540009][ T5326] comedi comedi3: 8255: I/O port conflict (0x9,4) [ 85.542813][ T5326] comedi comedi3: 8255: I/O port conflict (0xfff,4) [ 85.545635][ T5326] comedi comedi3: 8255: I/O port conflict (0x5c95238c,4) [ 85.553979][ T5326] comedi comedi3: 8255: I/O port conflict (0xa,4) [ 85.559803][ T5326] comedi comedi3: 8255: I/O port conflict (0x3bf,4) [ 85.562820][ T5326] comedi comedi3: 8255: I/O port conflict (0x5,4) [ 85.565699][ T5326] comedi comedi3: 8255: I/O port conflict (0x20000001,4) [ 85.569518][ T5326] comedi comedi3: 8255: I/O port conflict (0x400e1c8,4) [ 85.572605][ T5326] comedi comedi3: 8255: I/O port conflict (0x6,4) [ 85.575424][ T5326] comedi comedi3: 8255: I/O port conflict (0x7,4) [ 85.579321][ T5326] comedi comedi3: 8255: I/O port conflict (0x6,4) [ 85.582180][ T5326] comedi comedi3: 8255: I/O port conflict (0x6,4) [ 85.584898][ T5326] comedi comedi3: 8255: I/O port conflict (0x4,4) [ 85.589170][ T5326] comedi comedi3: 8255: I/O port conflict (0xb,4) [ 85.592122][ T5326] comedi comedi3: 8255: I/O port conflict (0x10,4) [ 85.594973][ T5326] comedi comedi3: 8255: I/O port conflict (0x3,4) [ 85.598552][ T5326] comedi comedi3: 8255: I/O port conflict (0xef,4) [ 85.601684][ T5327] comedi comedi0: pcl818: I/O port conflict (0x3,16) [ 85.604747][ T5327] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] SMP KASAN NOPTI [ 85.609530][ T5327] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 85.613517][ T5327] CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 85.617375][ T5327] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 85.622049][ T5327] RIP: 0010:pcl818_ai_cancel+0x69/0x3f0 [ 85.624796][ T5327] Code: 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 19 12 71 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 f8 11 71 f9 4d 8b 24 24 48 83 c3 [ 85.633086][ T5327] RSP: 0018:ffffc9000d35f9d8 EFLAGS: 00010206 [ 85.635675][ T5327] RAX: 0000000000000005 RBX: ffff88803e8bd000 RCX: 0000000000100000 [ 85.639065][ T5327] RDX: ffffc9000e62b000 RSI: 0000000000000916 RDI: 0000000000000917 [ 85.642291][ T5327] RBP: 0000000000000001 R08: ffff88803de5c92f R09: 1ffff11007bcb925 [ 85.645373][ T5327] R10: dffffc0000000000 R11: ffffffff88b62720 R12: 0000000000000028 [ 85.648145][ T5327] R13: dffffc0000000000 R14: ffff88803de5c800 R15: dffffc0000000000 [ 85.650867][ T5327] FS: 00007f32c1b486c0(0000) GS:ffff88808d730000(0000) knlGS:0000000000000000 [ 85.654271][ T5327] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.656872][ T5327] CR2: 00007f32c1b47fc8 CR3: 000000001233c000 CR4: 0000000000352ef0 [ 85.660062][ T5327] Call Trace: [ 85.661685][ T5327] [ 85.663081][ T5327] pcl818_detach+0x66/0xd0 [ 85.664786][ T5327] comedi_device_detach_locked+0x178/0x750 [ 85.667130][ T5327] comedi_device_attach+0x5d4/0x720 [ 85.669299][ T5327] comedi_unlocked_ioctl+0x5ff/0x1020 [ 85.671398][ T5327] ? kasan_quarantine_put+0xdd/0x220 [ 85.673342][ T5327] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 85.675604][ T5327] ? __might_fault+0xb0/0x130 [ 85.677351][ T5327] ? __fget_files+0x2a/0x420 [ 85.679200][ T5327] ? __fget_files+0x3a0/0x420 [ 85.681222][ T5327] ? __fget_files+0x2a/0x420 [ 85.683180][ T5327] ? bpf_lsm_file_ioctl+0x9/0x20 [ 85.685072][ T5327] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 85.687387][ T5327] __se_sys_ioctl+0xfc/0x170 [ 85.689251][ T5327] do_syscall_64+0xfa/0xfa0 [ 85.690979][ T5327] ? lockdep_hardirqs_on+0x9c/0x150 [ 85.693037][ T5327] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.695272][ T5327] ? clear_bhb_loop+0x60/0xb0 [ 85.697231][ T5327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.699395][ T5327] RIP: 0033:0x7f32c0d8f6c9 [ 85.701041][ T5327] 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 [ 85.708517][ T5327] RSP: 002b:00007f32c1b48038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 85.711531][ T5327] RAX: ffffffffffffffda RBX: 00007f32c0fe6090 RCX: 00007f32c0d8f6c9 [ 85.714955][ T5327] RDX: 0000200000000140 RSI: 0000000040946400 RDI: 0000000000000004 [ 85.719068][ T5327] RBP: 00007f32c0e11f91 R08: 0000000000000000 R09: 0000000000000000 [ 85.722437][ T5327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.726287][ T5327] R13: 00007f32c0fe6128 R14: 00007f32c0fe6090 R15: 00007fff2d7601b8 [ 85.729987][ T5327] [ 85.731411][ T5327] Modules linked in: [ 85.733862][ T5327] ---[ end trace 0000000000000000 ]--- [ 85.751851][ T5327] RIP: 0010:pcl818_ai_cancel+0x69/0x3f0 [ 85.754789][ T5327] Code: 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 19 12 71 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 f8 11 71 f9 4d 8b 24 24 48 83 c3 [ 85.764802][ T5327] RSP: 0018:ffffc9000d35f9d8 EFLAGS: 00010206 [ 85.768376][ T5327] RAX: 0000000000000005 RBX: ffff88803e8bd000 RCX: 0000000000100000 [ 85.771951][ T5327] RDX: ffffc9000e62b000 RSI: 0000000000000916 RDI: 0000000000000917 [ 85.775735][ T5327] RBP: 0000000000000001 R08: ffff88803de5c92f R09: 1ffff11007bcb925 [ 85.780391][ T5327] R10: dffffc0000000000 R11: ffffffff88b62720 R12: 0000000000000028 [ 85.784070][ T5327] R13: dffffc0000000000 R14: ffff88803de5c800 R15: dffffc0000000000 [ 85.788606][ T5327] FS: 00007f32c1b486c0(0000) GS:ffff88808d730000(0000) knlGS:0000000000000000 [ 85.792600][ T5327] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.795528][ T5327] CR2: 00007f32c0fb8558 CR3: 000000001233c000 CR4: 0000000000352ef0 [ 85.799696][ T5327] Kernel panic - not syncing: Fatal exception [ 85.802558][ T5327] Kernel Offset: disabled [ 85.804634][ T5327] Rebooting in 86400 seconds..