./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1563750550 <...> [ 99.790178][ T24] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.246' (ED25519) to the list of known hosts. execve("./syz-executor1563750550", ["./syz-executor1563750550"], 0x7fff406408a0 /* 10 vars */) = 0 brk(NULL) = 0x5555783bc000 brk(0x5555783bcd00) = 0x5555783bcd00 arch_prctl(ARCH_SET_FS, 0x5555783bc380) = 0 set_tid_address(0x5555783bc650) = 5861 set_robust_list(0x5555783bc660, 24) = 0 rseq(0x5555783bcca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1563750550", 4096) = 28 getrandom("\xcd\xc9\x60\xe1\x9e\xaf\x40\x9e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555783bcd00 brk(0x5555783ddd00) = 0x5555783ddd00 brk(0x5555783de000) = 0x5555783de000 mprotect(0x7f5f44617000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 executing program write(1, "executing program\n", 18) = 18 openat(AT_FDCWD, "/dev/comedi3", O_RDONLY|FASYNC) = 3 [ 102.603647][ T5861] comedi comedi3: pcl818: I/O port conflict (0xfffffffffffffffb,16) [ 102.612222][ T5861] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] SMP KASAN PTI [ 102.624143][ T5861] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 102.632585][ T5861] CPU: 1 UID: 0 PID: 5861 Comm: syz-executor156 Not tainted 6.16.0-rc5-next-20250710-syzkaller #0 PREEMPT(full) [ 102.644490][ T5861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 102.654596][ T5861] RIP: 0010:pcl818_ai_cancel+0x69/0x3f0 [ 102.660261][ T5861] Code: 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 b9 0c 34 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 98 0c 34 f9 4d 8b 24 24 48 83 c3 [ 102.679910][ T5861] RSP: 0018:ffffc900043179f0 EFLAGS: 00010206 [ 102.686008][ T5861] RAX: 0000000000000005 RBX: ffff8880244fed80 RCX: ffff888033761e00 [ 102.693999][ T5861] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88814c5a4800 [ 102.701974][ T5861] RBP: 0000000000000001 R08: ffff88814c5a492f R09: 1ffff110298b4925 [ 102.709951][ T5861] R10: dffffc0000000000 R11: ffffffff88f08970 R12: 0000000000000028 [ 102.717928][ T5861] R13: dffffc0000000000 R14: ffff88814c5a4800 R15: dffffc0000000000 [ 102.725904][ T5861] FS: 00005555783bc380(0000) GS:ffff888125898000(0000) knlGS:0000000000000000 [ 102.734840][ T5861] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 102.741423][ T5861] CR2: 00005560270e3000 CR3: 0000000077f2c000 CR4: 00000000003526f0 [ 102.749399][ T5861] Call Trace: [ 102.752710][ T5861] [ 102.755654][ T5861] pcl818_detach+0x66/0xd0 [ 102.760087][ T5861] comedi_device_detach+0x134/0x720 [ 102.765308][ T5861] comedi_device_attach+0x568/0x670 [ 102.770515][ T5861] comedi_unlocked_ioctl+0x686/0xf40 [ 102.775817][ T5861] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 102.781647][ T5861] ? _raw_spin_lock_irq+0xae/0xf0 [ 102.786733][ T5861] ? __pfx_ptrace_notify+0x10/0x10 [ 102.792028][ T5861] ? bpf_lsm_file_ioctl+0x9/0x20 [ 102.796992][ T5861] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 102.802812][ T5861] __se_sys_ioctl+0xfc/0x170 [ 102.807454][ T5861] do_syscall_64+0xfa/0x3b0 [ 102.811989][ T5861] ? lockdep_hardirqs_on+0x9c/0x150 [ 102.817213][ T5861] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.823325][ T5861] ? clear_bhb_loop+0x60/0xb0 [ 102.828015][ T5861] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.833913][ T5861] RIP: 0033:0x7f5f445a43e9 [ 102.838349][ T5861] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 [ 102.858083][ T5861] RSP: 002b:00007ffcfd3eb4f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 102.866514][ T5861] RAX: ffffffffffffffda RBX: 00007ffcfd3eb6c8 RCX: 00007f5f445a43e9 [ 102.874494][ T5861] RDX: 0000200000000140 RSI: 0000000040946400 RDI: 0000000000000003 [ 102.882471][ T5861] RBP: 00007f5f44617610 R08: 0000000000000000 R09: 00007ffcfd3eb6c8 [ 102.890444][ T5861] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 102.898418][ T5861] R13: 00007ffcfd3eb6b8 R14: 0000000000000001 R15: 0000000000000001 [ 102.906402][ T5861] [ 102.909425][ T5861] Modules linked in: [ 102.914088][ T5861] ---[ end trace 0000000000000000 ]--- [ 102.924614][ T5861] RIP: 0010:pcl818_ai_cancel+0x69/0x3f0 [ 102.931232][ T5861] Code: 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 b9 0c 34 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 98 0c 34 f9 4d 8b 24 24 48 83 c3 [ 102.950915][ T5861] RSP: 0018:ffffc900043179f0 EFLAGS: 00010206 [ 102.957024][ T5861] RAX: 0000000000000005 RBX: ffff8880244fed80 RCX: ffff888033761e00 [ 102.964995][ T5861] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88814c5a4800 [ 102.973024][ T5861] RBP: 0000000000000001 R08: ffff88814c5a492f R09: 1ffff110298b4925 [ 102.981050][ T5861] R10: dffffc0000000000 R11: ffffffff88f08970 R12: 0000000000000028 [ 102.989080][ T5861] R13: dffffc0000000000 R14: ffff88814c5a4800 R15: dffffc0000000000 [ 102.997114][ T5861] FS: 00005555783bc380(0000) GS:ffff888125798000(0000) knlGS:0000000000000000 [ 103.006170][ T5861] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 103.012805][ T5861] CR2: 00000000005fdeb8 CR3: 0000000077f2c000 CR4: 00000000003526f0 [ 103.020944][ T5861] Kernel panic - not syncing: Fatal exception [ 103.027202][ T5861] Kernel Offset: disabled [ 103.031539][ T5861] Rebooting in 86400 seconds..