program: r0 = openat$comedi(0xffffff9c, &(0x7f0000000040)='/dev/comedi3\x00', 0x2000, 0x0) r1 = openat$binfmt_register(0xffffffffffffff9c, &(0x7f0000000340), 0x1, 0x0) r2 = open$dir(&(0x7f0000000000)='.\x00', 0x0, 0x20) fsetxattr$system_posix_acl(r2, &(0x7f0000000380)='system.posix_acl_access\x00', &(0x7f00000003c0)=ANY=[@ANYBLOB="0200000001000000000000000800060000000000100007000000000020"], 0x24, 0x0) write$binfmt_register(r1, &(0x7f0000000200)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0xaa, 0x3a, '\x02', 0x3a, ']', 0x3a, './file0/file0'}, 0x2f) r3 = socket$nl_netfilter(0x10, 0x3, 0xc) mount_setattr(0xffffffffffffffff, 0x0, 0x9800, &(0x7f0000000100)={0x1d, 0x1000fa, 0x40000}, 0x20) sendmsg$IPSET_CMD_TYPE(r3, &(0x7f0000000980)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000880)={0x38, 0xd, 0x6, 0x5, 0x0, 0x0, {0x7, 0x0, 0x3}, [@IPSET_ATTR_PROTOCOL={0x5}, @IPSET_ATTR_FAMILY={0x5, 0x5, 0xd}, @IPSET_ATTR_TYPENAME={0x12, 0x3, 'bitmap:ip,mac\x00'}]}, 0x38}, 0x1, 0x0, 0x0, 0x7}, 0x10040000) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000080)={'pcl818\x00', [0x10, 0x80008000, 0x1, 0xa, 0x0, 0x0, 0x1, 0xf, 0x1000, 0x1, 0x8, 0x1, 0x6, 0x2, 0xffff, 0x6, 0xffffffa7, 0x9, 0xfffffffd, 0x5, 0x3ff, 0x10000, 0x800, 0x8000e2df, 0x10000009, 0x1, 0x4, 0x3, 0x7, 0x5, 0x5]}) writev(r0, &(0x7f0000000280)=[{&(0x7f0000000140)="b10ed29d94449cfe9838d162c52a76beb7be4034a2f4c9278052996689bc1f7e8e837967366efbdbdc10e042f70a6f21900471304a473fd84fc64fc694876ff5fe8e138b06805c3ec951b328de2c035a595130d8ad4e8498d6bce20dbb94489ca0a4ce07eaab9d3b6a7d5c5d0d180689b41265aba77693afdeaacb4bfe4660c10d58aef3", 0x84}, {&(0x7f0000000240)="0ee2eb46ababd4b4d079ebe7bacec9d5f49fd1ed61b80b7709869f667a86", 0x1e}], 0x2) r4 = syz_clone(0x200, &(0x7f0000000400)="ec6a4316667ebdffc0df2dd969ff5995a5d35f5c61e86740ab6b57c4be82eddd97f635f499575b3901efa141a0acf776c808ab90ec30cca3f77de3c3f3dd477825472347557ae6eb46e80265e2b87aa69769ec79fc306f276c4782bbfbda2f6301a0cac97d39bc2eb2bb80f03c10cedd9f3de22fa0a7f55ddfdea082ad803aad99b230ff240e81a64f0a5e8627bec1b12c1498bcc51ff26f789ceed5232a4bfbebf0214f9009ec131b2737325ec85b472439e57fed54ea4a4b3e77a3892215e588b07bf0b8b6fa474542d4db2f9af4bb0fe5cd87a246a5493ec9", 0xda, &(0x7f00000002c0), &(0x7f0000000300), &(0x7f0000000500)="5bf3ff12b60093de7ff83326f27a451a7ff89bb559b86d7923851c665ea5fd0330aa11d8a77546788dc9df7b12d48a3a848c51f36e33edabe42c53ea837d97023c1426c906bc8207cd4193a811706f464b11d9d35d2574e79a30eb99ad08a26f0ec665d9fe2073b79d66d89821e10807d5bf0fe68a7fd49f77") syz_open_procfs(r4, &(0x7f0000000580)='comm\x00') [ 74.076462][ T45] Bluetooth: hci0: command tx timeout [ 74.140040][ T5336] Can't find ip_set type bitmap:ip,mac [ 74.147865][ T5336] comedi comedi3: pcl818: I/O port conflict (0x10,16) [ 74.151153][ T5336] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] SMP KASAN NOPTI [ 74.156446][ T5336] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 74.160831][ T5336] CPU: 0 UID: 0 PID: 5336 Comm: syz.0.0 Not tainted 6.16.0-rc5-syzkaller #0 PREEMPT(full) [ 74.166592][ T5336] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 74.170944][ T5336] RIP: 0010:pcl818_ai_cancel+0x69/0x3f0 [ 74.173340][ T5336] Code: 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 29 f6 42 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 08 f6 42 f9 4d 8b 24 24 48 83 c3 [ 74.181916][ T5336] RSP: 0018:ffffc9000d3879f0 EFLAGS: 00010206 [ 74.185054][ T5336] RAX: 0000000000000005 RBX: ffff8880435d9000 RCX: 0000000000100000 [ 74.188778][ T5336] RDX: ffffc9000ddf2000 RSI: 0000000000000a86 RDI: 0000000000000a87 [ 74.192271][ T5336] RBP: 0000000000000001 R08: ffff88803eed112f R09: 1ffff11007dda225 [ 74.195982][ T5336] R10: dffffc0000000000 R11: ffffffff88e08cf0 R12: 0000000000000028 [ 74.200099][ T5336] R13: dffffc0000000000 R14: ffff88803eed1000 R15: dffffc0000000000 [ 74.204013][ T5336] FS: 00007f1e2e1f56c0(0000) GS:ffff88808d21d000(0000) knlGS:0000000000000000 [ 74.207960][ T5336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.211173][ T5336] CR2: 00007f1e32aed9b8 CR3: 00000000443d8000 CR4: 0000000000352ef0 [ 74.214710][ T5336] Call Trace: [ 74.216181][ T5336] [ 74.217492][ T5336] pcl818_detach+0x66/0xd0 [ 74.219731][ T5336] comedi_device_detach+0x134/0x720 [ 74.222375][ T5336] comedi_device_attach+0x568/0x670 [ 74.224767][ T5336] comedi_unlocked_ioctl+0x686/0xf40 [ 74.226931][ T5336] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 74.229088][ T5336] ? __lock_acquire+0xab9/0xd20 [ 74.230896][ T5336] ? __fget_files+0x2a/0x420 [ 74.232680][ T5336] ? __fget_files+0x2a/0x420 [ 74.234405][ T5336] ? __fget_files+0x3a0/0x420 [ 74.236260][ T5336] ? __fget_files+0x2a/0x420 [ 74.238628][ T5336] ? bpf_lsm_file_ioctl+0x9/0x20 [ 74.241395][ T5336] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 74.244846][ T5336] __se_sys_ioctl+0xf9/0x170 [ 74.246932][ T5336] do_syscall_64+0xfa/0x3b0 [ 74.248991][ T5336] ? lockdep_hardirqs_on+0x9c/0x150 [ 74.251360][ T5336] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.254162][ T5336] ? clear_bhb_loop+0x60/0xb0 [ 74.256279][ T5336] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.259006][ T5336] RIP: 0033:0x7f1e31d8e929 [ 74.260957][ T5336] 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 [ 74.272338][ T5336] RSP: 002b:00007f1e2e1f5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 74.276062][ T5336] RAX: ffffffffffffffda RBX: 00007f1e31fb5fa0 RCX: 00007f1e31d8e929 [ 74.280459][ T5336] RDX: 0000200000000080 RSI: 0000000040946400 RDI: 0000000000000003 [ 74.284026][ T5336] RBP: 00007f1e31e10b39 R08: 0000000000000000 R09: 0000000000000000 [ 74.288018][ T5336] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.292237][ T5336] R13: 0000000000000000 R14: 00007f1e31fb5fa0 R15: 00007ffe1b2c7988 [ 74.296152][ T5336] [ 74.297616][ T5336] Modules linked in: [ 74.301348][ T5336] ---[ end trace 0000000000000000 ]--- [ 74.333026][ T5336] RIP: 0010:pcl818_ai_cancel+0x69/0x3f0 [ 74.335888][ T5336] Code: 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 29 f6 42 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 08 f6 42 f9 4d 8b 24 24 48 83 c3 [ 74.357614][ T5336] RSP: 0018:ffffc9000d3879f0 EFLAGS: 00010206 [ 74.366422][ T5336] RAX: 0000000000000005 RBX: ffff8880435d9000 RCX: 0000000000100000 [ 74.372281][ T5336] RDX: ffffc9000ddf2000 RSI: 0000000000000a86 RDI: 0000000000000a87 [ 74.386500][ T5336] RBP: 0000000000000001 R08: ffff88803eed112f R09: 1ffff11007dda225 [ 74.390111][ T5336] R10: dffffc0000000000 R11: ffffffff88e08cf0 R12: 0000000000000028 [ 74.394569][ T5336] R13: dffffc0000000000 R14: ffff88803eed1000 R15: dffffc0000000000 [ 74.401890][ T5336] FS: 00007f1e2e1f56c0(0000) GS:ffff88808d21d000(0000) knlGS:0000000000000000 [ 74.413341][ T5336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.420515][ T5336] CR2: 00001ffffffffbc0 CR3: 00000000443d8000 CR4: 0000000000352ef0 [ 74.429222][ T5336] Kernel panic - not syncing: Fatal exception [ 74.432259][ T5336] Kernel Offset: disabled [ 74.434180][ T5336] Rebooting in 86400 seconds..