./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1435142632 <...> Warning: Permanently added '10.128.1.215' (ED25519) to the list of known hosts. execve("./syz-executor1435142632", ["./syz-executor1435142632"], 0x7ffdb536cce0 /* 10 vars */) = 0 brk(NULL) = 0x55556f030000 brk(0x55556f030d00) = 0x55556f030d00 arch_prctl(ARCH_SET_FS, 0x55556f030380) = 0 set_tid_address(0x55556f030650) = 5856 set_robust_list(0x55556f030660, 24) = 0 rseq(0x55556f030ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1435142632", 4096) = 28 getrandom("\x2b\x60\x0e\xc1\x1b\x65\x21\x35", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556f030d00 brk(0x55556f051d00) = 0x55556f051d00 brk(0x55556f052000) = 0x55556f052000 mprotect(0x7fabede09000, 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/comedi4", O_RDONLY|O_TRUNC|O_NONBLOCK|O_SYNC|O_NOATIME) = 3 [ 87.732335][ T5856] ------------[ cut here ]------------ [ 87.737927][ T5856] WARNING: mm/page_alloc.c:5124 at __alloc_frozen_pages_noprof+0x2c8/0x370, CPU#0: syz-executor143/5856 [ 87.749353][ T5856] Modules linked in: [ 87.753354][ T5856] CPU: 0 UID: 0 PID: 5856 Comm: syz-executor143 Not tainted 6.16.0-rc5-next-20250711-syzkaller #0 PREEMPT(full) [ 87.765310][ T5856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.775443][ T5856] RIP: 0010:__alloc_frozen_pages_noprof+0x2c8/0x370 [ 87.782134][ T5856] Code: 74 10 4c 89 e7 89 54 24 0c e8 14 23 0d 00 8b 54 24 0c 49 83 3c 24 00 0f 85 a5 fe ff ff e9 a6 fe ff ff c6 05 61 24 b7 0d 01 90 <0f> 0b 90 e9 18 ff ff ff a9 00 00 08 00 48 8b 4c 24 10 4c 8d 44 24 [ 87.801870][ T5856] RSP: 0018:ffffc90004017920 EFLAGS: 00010246 [ 87.808027][ T5856] RAX: ffffc90004017900 RBX: 000000000000001a RCX: 0000000000000000 [ 87.816044][ T5856] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90004017988 [ 87.824115][ T5856] RBP: ffffc90004017a08 R08: ffffc90004017987 R09: 0000000000000000 [ 87.832150][ T5856] R10: ffffc90004017960 R11: fffff52000802f31 R12: 0000000000000000 [ 87.840199][ T5856] R13: 1ffff92000802f28 R14: 0000000000040dc0 R15: dffffc0000000000 [ 87.848234][ T5856] FS: 000055556f030380(0000) GS:ffff88812578f000(0000) knlGS:0000000000000000 [ 87.857232][ T5856] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.863861][ T5856] CR2: 00000000005fdeb8 CR3: 00000000729d6000 CR4: 00000000003526f0 [ 87.871896][ T5856] Call Trace: [ 87.875208][ T5856] [ 87.878193][ T5856] ? __pfx___alloc_frozen_pages_noprof+0x10/0x10 [ 87.884560][ T5856] ? policy_nodemask+0x27c/0x720 [ 87.889549][ T5856] alloc_pages_mpol+0x232/0x4a0 [ 87.894453][ T5856] ___kmalloc_large_node+0x5f/0x1b0 [ 87.899728][ T5856] __kmalloc_large_node_noprof+0x18/0x90 [ 87.905420][ T5856] __kmalloc_noprof+0x36f/0x4f0 [ 87.910320][ T5856] ? comedi_unlocked_ioctl+0x9ee/0xf40 [ 87.915823][ T5856] comedi_unlocked_ioctl+0x9ee/0xf40 [ 87.921254][ T5856] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 87.927134][ T5856] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 87.932789][ T5856] ? do_vfs_ioctl+0xbe8/0x1430 [ 87.937628][ T5856] ? __pfx_do_vfs_ioctl+0x10/0x10 [ 87.942683][ T5856] ? _raw_spin_lock_irq+0xae/0xf0 [ 87.947832][ T5856] ? bpf_lsm_file_ioctl+0x9/0x20 [ 87.952805][ T5856] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 87.958714][ T5856] __se_sys_ioctl+0xf9/0x170 [ 87.963342][ T5856] do_syscall_64+0xfa/0x3b0 [ 87.967932][ T5856] ? lockdep_hardirqs_on+0x9c/0x150 [ 87.973153][ T5856] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.979294][ T5856] ? clear_bhb_loop+0x60/0xb0 [ 87.983993][ T5856] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.989934][ T5856] RIP: 0033:0x7fabedd962e9 [ 87.994383][ T5856] 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 [ 88.014049][ T5856] RSP: 002b:00007ffea8a4ac38 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 88.022553][ T5856] RAX: ffffffffffffffda RBX: 00007ffea8a4ae08 RCX: 00007fabedd962e9 [ 88.030614][ T5856] RDX: 00002000001859c0 RSI: 000000008010640b RDI: 0000000000000003 [ 88.038688][ T5856] RBP: 00007fabede09610 R08: 0000000000000000 R09: 00007ffea8a4ae08 [ 88.046773][ T5856] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 88.055210][ T5856] R13: 00007ffea8a4adf8 R14: 0000000000000001 R15: 0000000000000001 [ 88.063308][ T5856] [ 88.066357][ T5856] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 88.073649][ T5856] CPU: 0 UID: 0 PID: 5856 Comm: syz-executor143 Not tainted 6.16.0-rc5-next-20250711-syzkaller #0 PREEMPT(full) [ 88.085548][ T5856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 88.095615][ T5856] Call Trace: [ 88.099011][ T5856] [ 88.101966][ T5856] dump_stack_lvl+0x99/0x250 [ 88.106589][ T5856] ? __asan_memcpy+0x40/0x70 [ 88.111211][ T5856] ? __pfx_dump_stack_lvl+0x10/0x10 [ 88.116448][ T5856] ? __pfx__printk+0x10/0x10 [ 88.121090][ T5856] vpanic+0x281/0x750 [ 88.125109][ T5856] ? __pfx_vpanic+0x10/0x10 [ 88.129633][ T5856] ? is_bpf_text_address+0x292/0x2b0 [ 88.135032][ T5856] ? is_bpf_text_address+0x26/0x2b0 [ 88.140263][ T5856] panic+0xb9/0xc0 [ 88.144009][ T5856] ? __pfx_panic+0x10/0x10 [ 88.148455][ T5856] __warn+0x334/0x4c0 [ 88.152551][ T5856] ? __alloc_frozen_pages_noprof+0x2c8/0x370 [ 88.158569][ T5856] ? __alloc_frozen_pages_noprof+0x2c8/0x370 [ 88.164566][ T5856] report_bug+0x2be/0x4f0 [ 88.168930][ T5856] ? __alloc_frozen_pages_noprof+0x2c8/0x370 [ 88.174951][ T5856] ? __alloc_frozen_pages_noprof+0x2c8/0x370 [ 88.180957][ T5856] ? __alloc_frozen_pages_noprof+0x2ca/0x370 [ 88.186959][ T5856] handle_bug+0x84/0x160 [ 88.191314][ T5856] exc_invalid_op+0x1a/0x50 [ 88.195918][ T5856] asm_exc_invalid_op+0x1a/0x20 [ 88.200784][ T5856] RIP: 0010:__alloc_frozen_pages_noprof+0x2c8/0x370 [ 88.207394][ T5856] Code: 74 10 4c 89 e7 89 54 24 0c e8 14 23 0d 00 8b 54 24 0c 49 83 3c 24 00 0f 85 a5 fe ff ff e9 a6 fe ff ff c6 05 61 24 b7 0d 01 90 <0f> 0b 90 e9 18 ff ff ff a9 00 00 08 00 48 8b 4c 24 10 4c 8d 44 24 [ 88.227308][ T5856] RSP: 0018:ffffc90004017920 EFLAGS: 00010246 [ 88.233399][ T5856] RAX: ffffc90004017900 RBX: 000000000000001a RCX: 0000000000000000 [ 88.241392][ T5856] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90004017988 [ 88.249384][ T5856] RBP: ffffc90004017a08 R08: ffffc90004017987 R09: 0000000000000000 [ 88.257363][ T5856] R10: ffffc90004017960 R11: fffff52000802f31 R12: 0000000000000000 [ 88.265340][ T5856] R13: 1ffff92000802f28 R14: 0000000000040dc0 R15: dffffc0000000000 [ 88.273348][ T5856] ? __pfx___alloc_frozen_pages_noprof+0x10/0x10 [ 88.279695][ T5856] ? policy_nodemask+0x27c/0x720 [ 88.284653][ T5856] alloc_pages_mpol+0x232/0x4a0 [ 88.289533][ T5856] ___kmalloc_large_node+0x5f/0x1b0 [ 88.294755][ T5856] __kmalloc_large_node_noprof+0x18/0x90 [ 88.300410][ T5856] __kmalloc_noprof+0x36f/0x4f0 [ 88.305276][ T5856] ? comedi_unlocked_ioctl+0x9ee/0xf40 [ 88.310749][ T5856] comedi_unlocked_ioctl+0x9ee/0xf40 [ 88.316052][ T5856] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 88.321875][ T5856] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 88.327529][ T5856] ? do_vfs_ioctl+0xbe8/0x1430 [ 88.332311][ T5856] ? __pfx_do_vfs_ioctl+0x10/0x10 [ 88.337349][ T5856] ? _raw_spin_lock_irq+0xae/0xf0 [ 88.342428][ T5856] ? bpf_lsm_file_ioctl+0x9/0x20 [ 88.347399][ T5856] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 88.353235][ T5856] __se_sys_ioctl+0xf9/0x170 [ 88.357843][ T5856] do_syscall_64+0xfa/0x3b0 [ 88.362352][ T5856] ? lockdep_hardirqs_on+0x9c/0x150 [ 88.367550][ T5856] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.373618][ T5856] ? clear_bhb_loop+0x60/0xb0 [ 88.378305][ T5856] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.384202][ T5856] RIP: 0033:0x7fabedd962e9 [ 88.388630][ T5856] 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 [ 88.408238][ T5856] RSP: 002b:00007ffea8a4ac38 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 88.416662][ T5856] RAX: ffffffffffffffda RBX: 00007ffea8a4ae08 RCX: 00007fabedd962e9 [ 88.424640][ T5856] RDX: 00002000001859c0 RSI: 000000008010640b RDI: 0000000000000003 [ 88.432613][ T5856] RBP: 00007fabede09610 R08: 0000000000000000 R09: 00007ffea8a4ae08 [ 88.440597][ T5856] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 88.448567][ T5856] R13: 00007ffea8a4adf8 R14: 0000000000000001 R15: 0000000000000001 [ 88.456582][ T5856] [ 88.459967][ T5856] Kernel Offset: disabled [ 88.464299][ T5856] Rebooting in 86400 seconds..