processor_id+0x17/0x20 [ 67.386078][ T635] __x64_sys_read+0x7b/0x90 [ 67.390926][ T635] x64_sys_call+0x2f/0x9a0 [ 67.395551][ T635] do_syscall_64+0x4c/0xa0 [ 67.399994][ T635] ? clear_bhb_loop+0x30/0x80 [ 67.404804][ T635] ? clear_bhb_loop+0x30/0x80 [ 67.409607][ T635] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 67.415717][ T635] RIP: 0033:0x7fe2c675ac4e [ 67.420426][ T635] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 67.440404][ T635] RSP: 002b:00007fe2c76abfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 67.449203][ T635] RAX: ffffffffffffffda RBX: 00007fe2c76ac6c0 RCX: 00007fe2c675ac4e [ 67.457647][ T635] RDX: 000000000000000f RSI: 00007fe2c76ac0a0 RDI: 0000000000000007 [ 67.465931][ T635] RBP: 00007fe2c76ac090 R08: 0000000000000000 R09: 0000000000000000 [ 67.474118][ T635] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 67.482394][ T635] R13: 00007fe2c69e6218 R14: 00007fe2c69e6180 R15: 00007fff66458978 [ 67.490667][ T635] [ 67.494286][ T631] CPU: 1 PID: 631 Comm: syz.0.57 Not tainted syzkaller #0 [ 67.501932][ T631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 67.512287][ T631] Call Trace: [ 67.515598][ T631] [ 67.518907][ T631] __dump_stack+0x21/0x24 [ 67.523550][ T631] dump_stack_lvl+0x110/0x170 [ 67.528265][ T631] ? __cfi_dump_stack_lvl+0x8/0x8 [ 67.533471][ T631] dump_stack+0x15/0x24 [ 67.538016][ T631] should_fail_ex+0x3d4/0x520 [ 67.543266][ T631] should_fail+0xb/0x10 [ 67.547641][ T631] should_fail_usercopy+0x1a/0x20 [ 67.552952][ T631] _copy_to_user+0x1e/0x90 [ 67.557485][ T631] simple_read_from_buffer+0xe9/0x160 [ 67.562905][ T631] proc_fail_nth_read+0x1a6/0x220 [ 67.568131][ T631] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 67.574058][ T631] ? security_file_permission+0x94/0xb0 [ 67.579813][ T631] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 67.585375][ T631] vfs_read+0x27a/0x910 [ 67.589636][ T631] ? __cfi_vfs_read+0x10/0x10 [ 67.594540][ T631] ? __kasan_check_write+0x14/0x20 [ 67.599752][ T631] ? mutex_lock+0x93/0x1b0 [ 67.604380][ T631] ? __cfi_mutex_lock+0x10/0x10 [ 67.609257][ T631] ? __fdget_pos+0x2cd/0x380 [ 67.614295][ T631] ? ksys_read+0x71/0x250 [ 67.618832][ T631] ksys_read+0x149/0x250 [ 67.623451][ T631] ? __cfi_ksys_read+0x10/0x10 [ 67.628599][ T631] ? debug_smp_processor_id+0x17/0x20 [ 67.634110][ T631] __x64_sys_read+0x7b/0x90 [ 67.638646][ T631] x64_sys_call+0x2f/0x9a0 [ 67.643618][ T631] do_syscall_64+0x4c/0xa0 [ 67.648349][ T631] ? clear_bhb_loop+0x30/0x80 [ 67.653473][ T631] ? clear_bhb_loop+0x30/0x80 [ 67.658203][ T631] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 67.664527][ T631] RIP: 0033:0x7efcae35ac4e [ 67.669452][ T631] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 67.690418][ T631] RSP: 002b:00007efcae1bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 67.699657][ T631] RAX: ffffffffffffffda RBX: 00007efcae1bd6c0 RCX: 00007efcae35ac4e [ 67.707949][ T631] RDX: 000000000000000f RSI: 00007efcae1bd0a0 RDI: 0000000000000008 [ 67.716240][ T631] RBP: 00007efcae1bd090 R08: 0000000000000000 R09: 0000000000000000 [ 67.725315][ T631] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 67.734030][ T631] R13: 00007efcae5e6218 R14: 00007efcae5e6180 R15: 00007fff33c16a58 [ 67.742128][ T631] [ 67.746181][ T633] CPU: 1 PID: 633 Comm: syz.6.58 Not tainted syzkaller #0 [ 67.753601][ T633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 67.764472][ T633] Call Trace: [ 67.767873][ T633] [ 67.770839][ T633] __dump_stack+0x21/0x24 [ 67.775386][ T633] dump_stack_lvl+0x110/0x170 [ 67.780134][ T633] ? __cfi_dump_stack_lvl+0x8/0x8 [ 67.785650][ T633] dump_stack+0x15/0x24 [ 67.789946][ T633] should_fail_ex+0x3d4/0x520 [ 67.794833][ T633] should_fail+0xb/0x10 [ 67.799108][ T633] should_fail_usercopy+0x1a/0x20 [ 67.804502][ T633] _copy_to_user+0x1e/0x90 [ 67.808966][ T633] simple_read_from_buffer+0xe9/0x160 [ 67.814387][ T633] proc_fail_nth_read+0x1a6/0x220 [ 67.819545][ T633] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 67.825233][ T633] ? security_file_permission+0x94/0xb0 [ 67.830992][ T633] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 67.836672][ T633] vfs_read+0x27a/0x910 [ 67.841043][ T633] ? __cfi_vfs_read+0x10/0x10 [ 67.845944][ T633] ? __kasan_check_write+0x14/0x20 [ 67.851088][ T633] ? mutex_lock+0x93/0x1b0 [ 67.855555][ T633] ? __cfi_mutex_lock+0x10/0x10 [ 67.860542][ T633] ? __fdget_pos+0x2cd/0x380 [ 67.865353][ T633] ? ksys_read+0x71/0x250 [ 67.869711][ T633] ksys_read+0x149/0x250 [ 67.874174][ T633] ? __cfi_ksys_read+0x10/0x10 [ 67.879417][ T633] ? debug_smp_processor_id+0x17/0x20 [ 67.885619][ T633] __x64_sys_read+0x7b/0x90 [ 67.890460][ T633] x64_sys_call+0x2f/0x9a0 [ 67.895012][ T633] do_syscall_64+0x4c/0xa0 [ 67.899456][ T633] ? clear_bhb_loop+0x30/0x80 [ 67.904437][ T633] ? clear_bhb_loop+0x30/0x80 [ 67.909491][ T633] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 67.915619][ T633] RIP: 0033:0x7f8aac95ac4e [ 67.920250][ T633] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 67.940920][ T633] RSP: 002b:00007f8aad7f2fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 67.949709][ T633] RAX: ffffffffffffffda RBX: 00007f8aad7f36c0 RCX: 00007f8aac95ac4e [ 67.957859][ T633] RDX: 000000000000000f RSI: 00007f8aad7f30a0 RDI: 000000000000000a [ 67.966287][ T633] RBP: 00007f8aad7f3090 R08: 0000000000000000 R09: 0000000000000000 [ 67.975009][ T633] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 67.983716][ T633] R13: 00007f8aacbe6218 R14: 00007f8aacbe6180 R15: 00007ffcb57c4af8 [ 67.992161][ T633] [ 68.003623][ T641] FAULT_INJECTION: forcing a failure. [ 68.003623][ T641] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 68.017328][ T641] CPU: 1 PID: 641 Comm: syz.1.60 Not tainted syzkaller #0 [ 68.024829][ T641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 68.035855][ T641] Call Trace: [ 68.039254][ T641] [ 68.042382][ T641] __dump_stack+0x21/0x24 [ 68.047101][ T641] dump_stack_lvl+0x110/0x170 [ 68.051798][ T641] ? __cfi_dump_stack_lvl+0x8/0x8 [ 68.057294][ T641] dump_stack+0x15/0x24 [ 68.061489][ T641] should_fail_ex+0x3d4/0x520 [ 68.066368][ T641] should_fail+0xb/0x10 [ 68.070645][ T641] should_fail_usercopy+0x1a/0x20 [ 68.075863][ T641] _copy_to_user+0x1e/0x90 [ 68.080318][ T641] simple_read_from_buffer+0xe9/0x160 [ 68.086074][ T641] proc_fail_nth_read+0x1a6/0x220 [ 68.091473][ T641] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 68.097136][ T641] ? security_file_permission+0x94/0xb0 [ 68.103057][ T641] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 68.108708][ T641] vfs_read+0x27a/0x910 [ 68.112899][ T641] ? __cfi_vfs_read+0x10/0x10 [ 68.117943][ T641] ? __kasan_check_write+0x14/0x20 [ 68.123259][ T641] ? mutex_lock+0x93/0x1b0 [ 68.127874][ T641] ? __cfi_mutex_lock+0x10/0x10 [ 68.132932][ T641] ? __fdget_pos+0x2cd/0x380 [ 68.138151][ T641] ? ksys_read+0x71/0x250 [ 68.142942][ T641] ksys_read+0x149/0x250 [ 68.147261][ T641] ? __cfi_ksys_read+0x10/0x10 [ 68.152155][ T641] ? debug_smp_processor_id+0x17/0x20 [ 68.157806][ T641] __x64_sys_read+0x7b/0x90 [ 68.162403][ T641] x64_sys_call+0x2f/0x9a0 [ 68.166927][ T641] do_syscall_64+0x4c/0xa0 [ 68.171368][ T641] ? clear_bhb_loop+0x30/0x80 [ 68.176505][ T641] ? clear_bhb_loop+0x30/0x80 [ 68.181403][ T641] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 68.187318][ T641] RIP: 0033:0x7f25fd95ac4e [ 68.191905][ T641] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 68.211961][ T641] RSP: 002b:00007f25fe830fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 68.221101][ T641] RAX: ffffffffffffffda RBX: 00007f25fe8316c0 RCX: 00007f25fd95ac4e [ 68.229108][ T641] RDX: 000000000000000f RSI: 00007f25fe8310a0 RDI: 0000000000000007 [ 68.237376][ T641] RBP: 00007f25fe831090 R08: 0000000000000000 R09: 0000000000000000 [ 68.246592][ T641] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 68.255454][ T641] R13: 00007f25fdbe6218 R14: 00007f25fdbe6180 R15: 00007ffced4f41c8 [ 68.263630][ T641] [ 68.339150][ T646] FAULT_INJECTION: forcing a failure. [ 68.339150][ T646] name failslab, interval 1, probability 0, space 0, times 0 [ 68.353572][ T646] CPU: 0 PID: 646 Comm: syz.0.62 Not tainted syzkaller #0 [ 68.360940][ T646] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 68.371564][ T646] Call Trace: [ 68.375060][ T646] [ 68.378025][ T646] __dump_stack+0x21/0x24 [ 68.382387][ T646] dump_stack_lvl+0x110/0x170 [ 68.387094][ T646] ? __cfi_dump_stack_lvl+0x8/0x8 [ 68.392330][ T646] ? unwind_get_return_address+0x4d/0x90 [ 68.398177][ T646] dump_stack+0x15/0x24 [ 68.402475][ T646] should_fail_ex+0x3d4/0x520 [ 68.407361][ T646] __should_failslab+0xac/0xf0 [ 68.412273][ T646] ? tracepoint_probe_unregister+0x211/0x8e0 [ 68.418385][ T646] should_failslab+0x9/0x20 [ 68.423084][ T646] __kmem_cache_alloc_node+0x3d/0x2c0 [ 68.428574][ T646] ? __cfi_mutex_lock+0x10/0x10 [ 68.433446][ T646] ? delete_node+0x3dc/0xa60 [ 68.438050][ T646] ? tracepoint_probe_unregister+0x211/0x8e0 [ 68.444143][ T646] __kmalloc+0xa1/0x1e0 [ 68.448440][ T646] ? __cfi___bpf_trace_neigh_update+0x10/0x10 [ 68.454739][ T646] tracepoint_probe_unregister+0x211/0x8e0 [ 68.460922][ T646] bpf_probe_unregister+0x61/0x70 [ 68.466245][ T646] bpf_raw_tp_link_release+0x63/0x90 [ 68.471742][ T646] bpf_link_free+0x13a/0x3a0 [ 68.476632][ T646] ? bpf_link_put_deferred+0x20/0x20 [ 68.482148][ T646] bpf_link_release+0x15f/0x170 [ 68.487198][ T646] ? __cfi_bpf_link_release+0x10/0x10 [ 68.492686][ T646] __fput+0x1fc/0x8f0 [ 68.496713][ T646] ____fput+0x15/0x20 [ 68.500729][ T646] task_work_run+0x1e1/0x250 [ 68.505475][ T646] ? __cfi_task_work_run+0x10/0x10 [ 68.510706][ T646] ? fput+0x15b/0x1a0 [ 68.515247][ T646] exit_to_user_mode_loop+0x9b/0xb0 [ 68.520590][ T646] exit_to_user_mode_prepare+0x87/0xd0 [ 68.526335][ T646] syscall_exit_to_user_mode+0x1a/0x30 [ 68.531924][ T646] do_syscall_64+0x58/0xa0 [ 68.536709][ T646] ? clear_bhb_loop+0x30/0x80 [ 68.541505][ T646] ? clear_bhb_loop+0x30/0x80 [ 68.546555][ T646] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 68.552564][ T646] RIP: 0033:0x7efcae39a379 [ 68.557196][ T646] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 [ 68.577086][ T646] RSP: 002b:00007efcae1ff028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 68.585631][ T646] RAX: 0000000000000000 RBX: 00007efcae5e5fa0 RCX: 00007efcae39a379 [ 68.594155][ T646] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009 [ 68.602322][ T646] RBP: 00007efcae1ff090 R08: 0000000000000000 R09: 0000000000000000 [ 68.610677][ T646] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 68.619028][ T646] R13: 00007efcae5e6038 R14: 00007efcae5e5fa0 R15: 00007fff33c16a58 [ 68.627239][ T646] [ 68.632351][ T650] FAULT_INJECTION: forcing a failure. [ 68.632351][ T650] name failslab, interval 1, probability 0, space 0, times 0 [ 68.647253][ T650] CPU: 1 PID: 650 Comm: syz.1.65 Not tainted syzkaller #0 [ 68.654603][ T650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 68.665406][ T650] Call Trace: [ 68.668897][ T650] [ 68.671977][ T650] __dump_stack+0x21/0x24 [ 68.676452][ T650] dump_stack_lvl+0x110/0x170 [ 68.681314][ T650] ? __cfi_dump_stack_lvl+0x8/0x8 [ 68.686895][ T650] dump_stack+0x15/0x24 [ 68.691266][ T650] should_fail_ex+0x3d4/0x520 [ 68.696274][ T650] __should_failslab+0xac/0xf0 [ 68.701187][ T650] ? tracepoint_probe_unregister+0x211/0x8e0 [ 68.707371][ T650] should_failslab+0x9/0x20 [ 68.712078][ T650] __kmem_cache_alloc_node+0x3d/0x2c0 [ 68.717660][ T650] ? __cfi_mutex_lock+0x10/0x10 [ 68.722888][ T650] ? delete_node+0x3dc/0xa60 [ 68.727685][ T650] ? tracepoint_probe_unregister+0x211/0x8e0 [ 68.734354][ T650] __kmalloc+0xa1/0x1e0 [ 68.738722][ T650] ? __cfi___bpf_trace_neigh_update+0x10/0x10 [ 68.744924][ T650] tracepoint_probe_unregister+0x211/0x8e0 [ 68.750990][ T650] bpf_probe_unregister+0x61/0x70 [ 68.756341][ T650] bpf_raw_tp_link_release+0x63/0x90 [ 68.761745][ T650] bpf_link_free+0x13a/0x3a0 [ 68.766988][ T650] ? bpf_link_put_deferred+0x20/0x20 [ 68.772957][ T650] bpf_link_release+0x15f/0x170 [ 68.778539][ T650] ? __cfi_bpf_link_release+0x10/0x10 [ 68.784225][ T650] __fput+0x1fc/0x8f0 [ 68.788482][ T650] ____fput+0x15/0x20 [ 68.792602][ T650] task_work_run+0x1e1/0x250 [ 68.797310][ T650] ? __cfi_task_work_run+0x10/0x10 [ 68.802866][ T650] ? fput+0x15b/0x1a0 [ 68.806902][ T650] exit_to_user_mode_loop+0x9b/0xb0 [ 68.812299][ T650] exit_to_user_mode_prepare+0x87/0xd0 [ 68.817960][ T650] syscall_exit_to_user_mode+0x1a/0x30 [ 68.823742][ T650] do_syscall_64+0x58/0xa0 [ 68.828275][ T650] ? clear_bhb_loop+0x30/0x80 [ 68.833159][ T650] ? clear_bhb_loop+0x30/0x80 [ 68.838076][ T650] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 68.844108][ T650] RIP: 0033:0x7f25fd99a379 [ 68.848920][ T650] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 [ 68.868994][ T650] RSP: 002b:00007f25fe873028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 68.877619][ T650] RAX: 0000000000000000 RBX: 00007f25fdbe5fa0 RCX: 00007f25fd99a379 [ 68.886173][ T650] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009 [ 68.894462][ T650] RBP: 00007f25fe873090 R08: 0000000000000000 R09: 0000000000000000 [ 68.902825][ T650] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 68.911600][ T650] R13: 00007f25fdbe6038 R14: 00007f25fdbe5fa0 R15: 00007ffced4f41c8 [ 68.919890][ T650] [ 68.932696][ T645] FAULT_INJECTION: forcing a failure. [ 68.932696][ T645] name failslab, interval 1, probability 0, space 0, times 0 [ 68.946357][ T645] CPU: 0 PID: 645 Comm: syz.2.63 Not tainted syzkaller #0 [ 68.953788][ T645] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 68.965196][ T645] Call Trace: [ 68.968496][ T645] [ 68.972004][ T645] __dump_stack+0x21/0x24 [ 68.976712][ T645] dump_stack_lvl+0x110/0x170 [ 68.981884][ T645] ? __cfi_dump_stack_lvl+0x8/0x8 [ 68.987380][ T645] ? call_rcu+0xb90/0xf90 [ 68.992361][ T645] ? __cfi_stack_trace_consume_entry+0x10/0x10 [ 68.998733][ T645] dump_stack+0x15/0x24 [ 69.003352][ T645] should_fail_ex+0x3d4/0x520 [ 69.008187][ T645] __should_failslab+0xac/0xf0 [ 69.013067][ T645] ? tracepoint_probe_unregister+0x211/0x8e0 [ 69.019462][ T645] should_failslab+0x9/0x20 [ 69.024269][ T645] __kmem_cache_alloc_node+0x3d/0x2c0 [ 69.030023][ T645] ? __cfi_mutex_lock+0x10/0x10 [ 69.035265][ T645] ? tracepoint_probe_unregister+0x211/0x8e0 [ 69.041550][ T645] __kmalloc+0xa1/0x1e0 [ 69.045936][ T645] ? __cfi___bpf_trace_neigh_update+0x10/0x10 [ 69.052320][ T645] tracepoint_probe_unregister+0x211/0x8e0 [ 69.058355][ T645] bpf_probe_unregister+0x61/0x70 [ 69.063415][ T645] bpf_raw_tp_link_release+0x63/0x90 [ 69.069246][ T645] bpf_link_free+0x13a/0x3a0 [ 69.074043][ T645] ? irqentry_exit+0x37/0x40 [ 69.079280][ T645] ? sysvec_apic_timer_interrupt+0x64/0xc0 [ 69.085370][ T645] ? bpf_link_put_deferred+0x20/0x20 [ 69.090688][ T645] bpf_link_release+0x15f/0x170 [ 69.095654][ T645] ? __cfi_bpf_link_release+0x10/0x10 [ 69.101138][ T645] __fput+0x1fc/0x8f0 [ 69.105248][ T645] ____fput+0x15/0x20 [ 69.109572][ T645] task_work_run+0x1e1/0x250 [ 69.114740][ T645] ? __cfi_task_work_run+0x10/0x10 [ 69.119972][ T645] ? fput+0x15b/0x1a0 [ 69.124274][ T645] exit_to_user_mode_loop+0x9b/0xb0 [ 69.129528][ T645] exit_to_user_mode_prepare+0x87/0xd0 [ 69.135190][ T645] syscall_exit_to_user_mode+0x1a/0x30 [ 69.141131][ T645] do_syscall_64+0x58/0xa0 [ 69.145761][ T645] ? clear_bhb_loop+0x30/0x80 [ 69.150653][ T645] ? clear_bhb_loop+0x30/0x80 [ 69.155799][ T645] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 69.161910][ T645] RIP: 0033:0x7fd2db99a379 [ 69.166452][ T645] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 [ 69.186687][ T645] RSP: 002b:00007fd2dc803028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 69.195562][ T645] RAX: 0000000000000000 RBX: 00007fd2dbbe5fa0 RCX: 00007fd2db99a379 [ 69.203822][ T645] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009 [ 69.212161][ T645] RBP: 00007fd2dc803090 R08: 0000000000000000 R09: 0000000000000000 [ 69.220273][ T645] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 69.228266][ T645] R13: 00007fd2dbbe6038 R14: 00007fd2dbbe5fa0 R15: 00007ffcfb1b8b38 [ 69.236706][ T645] [ 69.266618][ T648] FAULT_INJECTION: forcing a failure. [ 69.266618][ T648] name failslab, interval 1, probability 0, space 0, times 0 [ 69.285708][ T648] CPU: 1 PID: 648 Comm: syz.6.64 Not tainted syzkaller #0 [ 69.293417][ T648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 69.303867][ T648] Call Trace: [ 69.307264][ T648] [ 69.310403][ T648] __dump_stack+0x21/0x24 [ 69.315030][ T648] dump_stack_lvl+0x110/0x170 [ 69.319823][ T648] ? __cfi_dump_stack_lvl+0x8/0x8 [ 69.325036][ T648] ? unwind_get_return_address+0x4d/0x90 [ 69.331712][ T648] ? __cfi_stack_trace_consume_entry+0x10/0x10 [ 69.338560][ T648] dump_stack+0x15/0x24 [ 69.342935][ T648] should_fail_ex+0x3d4/0x520 [ 69.347825][ T648] __should_failslab+0xac/0xf0 [ 69.352981][ T648] ? tracepoint_probe_unregister+0x211/0x8e0 [ 69.359483][ T648] should_failslab+0x9/0x20 [ 69.364032][ T648] __kmem_cache_alloc_node+0x3d/0x2c0 [ 69.369875][ T648] ? __cfi_mutex_lock+0x10/0x10 [ 69.374922][ T648] ? delete_node+0x3dc/0xa60 [ 69.379537][ T648] ? tracepoint_probe_unregister+0x211/0x8e0 [ 69.385624][ T648] __kmalloc+0xa1/0x1e0 [ 69.389977][ T648] ? __cfi___bpf_trace_neigh_update+0x10/0x10 [ 69.396063][ T648] tracepoint_probe_unregister+0x211/0x8e0 [ 69.402239][ T648] bpf_probe_unregister+0x61/0x70 [ 69.407287][ T648] bpf_raw_tp_link_release+0x63/0x90 [ 69.412770][ T648] bpf_link_free+0x13a/0x3a0 [ 69.417387][ T648] ? bpf_link_put_deferred+0x20/0x20 [ 69.422707][ T648] bpf_link_release+0x15f/0x170 [ 69.427751][ T648] ? __cfi_bpf_link_release+0x10/0x10 [ 69.433662][ T648] __fput+0x1fc/0x8f0 [ 69.437773][ T648] ____fput+0x15/0x20 [ 69.441887][ T648] task_work_run+0x1e1/0x250 [ 69.446786][ T648] ? __cfi_task_work_run+0x10/0x10 [ 69.452012][ T648] ? fput+0x15b/0x1a0 [ 69.456107][ T648] exit_to_user_mode_loop+0x9b/0xb0 [ 69.461518][ T648] exit_to_user_mode_prepare+0x87/0xd0 [ 69.467114][ T648] syscall_exit_to_user_mode+0x1a/0x30 [ 69.472791][ T648] do_syscall_64+0x58/0xa0 [ 69.477345][ T648] ? clear_bhb_loop+0x30/0x80 [ 69.482236][ T648] ? clear_bhb_loop+0x30/0x80 [ 69.487230][ T648] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 69.493251][ T648] RIP: 0033:0x7f8aac99a379 [ 69.498326][ T648] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 [ 69.518856][ T648] RSP: 002b:00007f8aad835028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 69.527389][ T648] RAX: 0000000000000000 RBX: 00007f8aacbe5fa0 RCX: 00007f8aac99a379 [ 69.535556][ T648] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009 [ 69.543877][ T648] RBP: 00007f8aad835090 R08: 0000000000000000 R09: 0000000000000000 [ 69.552873][ T648] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 2026/05/12 05:42:41 executed programs: 61 [ 69.561163][ T648] R13: 00007f8aacbe6038 R14: 00007f8aacbe5fa0 R15: 00007ffcb57c4af8 [ 69.569450][ T648] [ 69.622057][ T659] FAULT_INJECTION: forcing a failure. [ 69.622057][ T659] name failslab, interval 1, probability 0, space 0, times 0 [ 69.636179][ T659] CPU: 0 PID: 659 Comm: syz.6.69 Not tainted syzkaller #0 [ 69.644302][ T659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 69.655624][ T659] Call Trace: [ 69.659116][ T659] [ 69.662334][ T659] __dump_stack+0x21/0x24 [ 69.666791][ T659] dump_stack_lvl+0x110/0x170 [ 69.672213][ T659] ? __cfi_dump_stack_lvl+0x8/0x8 [ 69.677627][ T659] ? unwind_get_return_address+0x4d/0x90 [ 69.683475][ T659] ? __cfi_stack_trace_consume_entry+0x10/0x10 [ 69.690182][ T659] dump_stack+0x15/0x24 [ 69.694732][ T659] should_fail_ex+0x3d4/0x520 [ 69.699437][ T659] __should_failslab+0xac/0xf0 [ 69.704318][ T659] ? tracepoint_probe_unregister+0x211/0x8e0 [ 69.710504][ T659] should_failslab+0x9/0x20 [ 69.715031][ T659] __kmem_cache_alloc_node+0x3d/0x2c0 [ 69.720633][ T659] ? __cfi_mutex_lock+0x10/0x10 [ 69.725732][ T659] ? delete_node+0x3e6/0xa60 [ 69.730605][ T659] ? tracepoint_probe_unregister+0x211/0x8e0 [ 69.736802][ T659] __kmalloc+0xa1/0x1e0 [ 69.741620][ T659] ? __cfi___bpf_trace_neigh_update+0x10/0x10 [ 69.747933][ T659] tracepoint_probe_unregister+0x211/0x8e0 [ 69.753957][ T659] bpf_probe_unregister+0x61/0x70 [ 69.759102][ T659] bpf_raw_tp_link_release+0x63/0x90 [ 69.764926][ T659] bpf_link_free+0x13a/0x3a0 [ 69.769545][ T659] ? bpf_link_put_deferred+0x20/0x20 [ 69.775031][ T659] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 69.781669][ T659] bpf_link_release+0x15f/0x170 [ 69.786911][ T659] ? __cfi_bpf_link_release+0x10/0x10 [ 69.792852][ T659] __fput+0x1fc/0x8f0 [ 69.797239][ T659] ____fput+0x15/0x20 [ 69.801355][ T659] task_work_run+0x1e1/0x250 [ 69.806162][ T659] ? __cfi_task_work_run+0x10/0x10 [ 69.811407][ T659] ? fput+0x15b/0x1a0 [ 69.815446][ T659] exit_to_user_mode_loop+0x9b/0xb0 [ 69.820678][ T659] exit_to_user_mode_prepare+0x87/0xd0 [ 69.826251][ T659] syscall_exit_to_user_mode+0x1a/0x30 [ 69.831777][ T659] do_syscall_64+0x58/0xa0 [ 69.836322][ T659] ? clear_bhb_loop+0x30/0x80 [ 69.841313][ T659] ? clear_bhb_loop+0x30/0x80 [ 69.846138][ T659] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 69.852058][ T659] RIP: 0033:0x7f8aac99a379 [ 69.856502][ T659] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 [ 69.876313][ T659] RSP: 002b:00007f8aad835028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 69.885193][ T659] RAX: 0000000000000000 RBX: 00007f8aacbe5fa0 RCX: 00007f8aac99a379 [ 69.893459][ T659] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009 [ 69.901818][ T659] RBP: 00007f8aad835090 R08: 0000000000000000 R09: 0000000000000000 [ 69.909908][ T659] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 69.918293][ T659] R13: 00007f8aacbe6038 R14: 00007f8aacbe5fa0 R15: 00007ffcb57c4af8 [ 69.926734][ T659] [ 69.935025][ T654] FAULT_INJECTION: forcing a failure. [ 69.935025][ T654] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 69.953655][ T654] CPU: 0 PID: 654 Comm: syz.1.67 Not tainted syzkaller #0 [ 69.961012][ T654] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 69.971190][ T654] Call Trace: [ 69.974751][ T654] [ 69.977717][ T654] __dump_stack+0x21/0x24 [ 69.982349][ T654] dump_stack_lvl+0x110/0x170 [ 69.987058][ T654] ? __cfi_dump_stack_lvl+0x8/0x8 [ 69.992826][ T654] dump_stack+0x15/0x24 [ 69.997126][ T654] should_fail_ex+0x3d4/0x520 [ 70.002027][ T654] should_fail+0xb/0x10 [ 70.006320][ T654] should_fail_usercopy+0x1a/0x20 [ 70.011407][ T654] _copy_to_user+0x1e/0x90 [ 70.015970][ T654] simple_read_from_buffer+0xe9/0x160 [ 70.021386][ T654] proc_fail_nth_read+0x1a6/0x220 [ 70.026627][ T654] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 70.033011][ T654] ? security_file_permission+0x94/0xb0 [ 70.038615][ T654] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 70.044921][ T654] vfs_read+0x27a/0x910 [ 70.049761][ T654] ? __cfi_vfs_read+0x10/0x10 [ 70.054753][ T654] ? __kasan_check_write+0x14/0x20 [ 70.060252][ T654] ? mutex_lock+0x93/0x1b0 [ 70.064802][ T654] ? __cfi_mutex_lock+0x10/0x10 [ 70.070387][ T654] ? __fdget_pos+0x2cd/0x380 [ 70.075203][ T654] ? ksys_read+0x71/0x250 [ 70.079667][ T654] ksys_read+0x149/0x250 [ 70.084177][ T654] ? __cfi_ksys_read+0x10/0x10 [ 70.089247][ T654] ? fpregs_restore_userregs+0x128/0x260 [ 70.095023][ T654] __x64_sys_read+0x7b/0x90 [ 70.099918][ T654] x64_sys_call+0x2f/0x9a0 [ 70.104604][ T654] do_syscall_64+0x4c/0xa0 [ 70.109416][ T654] ? clear_bhb_loop+0x30/0x80 [ 70.114316][ T654] ? clear_bhb_loop+0x30/0x80 [ 70.119134][ T654] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 70.126315][ T654] RIP: 0033:0x7f25fd95ac4e [ 70.131126][ T654] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 70.152819][ T654] RSP: 002b:00007f25fe872fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 70.161801][ T654] RAX: ffffffffffffffda RBX: 00007f25fe8736c0 RCX: 00007f25fd95ac4e [ 70.170341][ T654] RDX: 000000000000000f RSI: 00007f25fe8730a0 RDI: 000000000000000a [ 70.179221][ T654] RBP: 00007f25fe873090 R08: 0000000000000000 R09: 0000000000000000 [ 70.187594][ T654] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 70.196415][ T654] R13: 00007f25fdbe6038 R14: 00007f25fdbe5fa0 R15: 00007ffced4f41c8 [ 70.204612][ T654] [ 70.209329][ T661] FAULT_INJECTION: forcing a failure. [ 70.209329][ T661] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 70.216902][ T657] FAULT_INJECTION: forcing a failure. [ 70.216902][ T657] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 70.243936][ T661] CPU: 0 PID: 661 Comm: syz.2.68 Not tainted syzkaller #0 [ 70.243965][ T661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 70.243979][ T661] Call Trace: [ 70.243985][ T661] [ 70.243992][ T661] __dump_stack+0x21/0x24 [ 70.244020][ T661] dump_stack_lvl+0x110/0x170 [ 70.244042][ T661] ? __cfi_dump_stack_lvl+0x8/0x8 [ 70.244064][ T661] dump_stack+0x15/0x24 [ 70.244084][ T661] should_fail_ex+0x3d4/0x520 [ 70.244105][ T661] should_fail+0xb/0x10 [ 70.244122][ T661] should_fail_usercopy+0x1a/0x20 [ 70.244143][ T661] _copy_to_user+0x1e/0x90 [ 70.244171][ T661] simple_read_from_buffer+0xe9/0x160 [ 70.244196][ T661] proc_fail_nth_read+0x1a6/0x220 [ 70.244220][ T661] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 70.244243][ T661] ? security_file_permission+0x94/0xb0 [ 70.244273][ T661] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 70.244295][ T661] vfs_read+0x27a/0x910 [ 70.244314][ T661] ? __cfi_vfs_read+0x10/0x10 [ 70.244332][ T661] ? __kasan_check_write+0x14/0x20 [ 70.244353][ T661] ? mutex_lock+0x93/0x1b0 [ 70.244379][ T661] ? __cfi_mutex_lock+0x10/0x10 [ 70.244407][ T661] ? __fdget_pos+0x2cd/0x380 [ 70.244427][ T661] ? ksys_read+0x71/0x250 [ 70.244459][ T661] ksys_read+0x149/0x250 [ 70.244478][ T661] ? __cfi_ksys_read+0x10/0x10 [ 70.244500][ T661] __x64_sys_read+0x7b/0x90 [ 70.244519][ T661] x64_sys_call+0x2f/0x9a0 [ 70.244543][ T661] do_syscall_64+0x4c/0xa0 [ 70.244564][ T661] ? clear_bhb_loop+0x30/0x80 [ 70.244599][ T661] ? clear_bhb_loop+0x30/0x80 [ 70.244627][ T661] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 70.244655][ T661] RIP: 0033:0x7fd2db95ac4e [ 70.244671][ T661] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 70.244690][ T661] RSP: 002b:00007fd2dc802fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 70.244712][ T661] RAX: ffffffffffffffda RBX: 00007fd2dc8036c0 RCX: 00007fd2db95ac4e [ 70.244728][ T661] RDX: 000000000000000f RSI: 00007fd2dc8030a0 RDI: 000000000000000a [ 70.244741][ T661] RBP: 00007fd2dc803090 R08: 0000000000000000 R09: 0000000000000000 [ 70.244754][ T661] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 70.244766][ T661] R13: 00007fd2dbbe6038 R14: 00007fd2dbbe5fa0 R15: 00007ffcfb1b8b38 [ 70.244787][ T661] [ 70.535079][ T657] CPU: 1 PID: 657 Comm: syz.0.66 Not tainted syzkaller #0 [ 70.542425][ T657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 70.553689][ T657] Call Trace: [ 70.557070][ T657] [ 70.560111][ T657] __dump_stack+0x21/0x24 [ 70.564996][ T657] dump_stack_lvl+0x110/0x170 [ 70.569969][ T657] ? __cfi_dump_stack_lvl+0x8/0x8 [ 70.575128][ T657] dump_stack+0x15/0x24 [ 70.579498][ T657] should_fail_ex+0x3d4/0x520 [ 70.584470][ T657] should_fail+0xb/0x10 [ 70.589096][ T657] should_fail_usercopy+0x1a/0x20 [ 70.594340][ T657] _copy_to_user+0x1e/0x90 [ 70.599083][ T657] simple_read_from_buffer+0xe9/0x160 [ 70.604482][ T657] proc_fail_nth_read+0x1a6/0x220 [ 70.609635][ T657] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 70.615669][ T657] ? security_file_permission+0x94/0xb0 [ 70.621591][ T657] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 70.627186][ T657] vfs_read+0x27a/0x910 [ 70.631541][ T657] ? __cfi_vfs_read+0x10/0x10 [ 70.636387][ T657] ? __kasan_check_write+0x14/0x20 [ 70.642482][ T657] ? mutex_lock+0x93/0x1b0 [ 70.646926][ T657] ? __cfi_mutex_lock+0x10/0x10 [ 70.651900][ T657] ? __fdget_pos+0x2cd/0x380 [ 70.656529][ T657] ? ksys_read+0x71/0x250 [ 70.661197][ T657] ksys_read+0x149/0x250 [ 70.665573][ T657] ? __cfi_ksys_read+0x10/0x10 [ 70.670744][ T657] ? debug_smp_processor_id+0x17/0x20 [ 70.676325][ T657] __x64_sys_read+0x7b/0x90 [ 70.680950][ T657] x64_sys_call+0x2f/0x9a0 [ 70.685690][ T657] do_syscall_64+0x4c/0xa0 [ 70.690576][ T657] ? clear_bhb_loop+0x30/0x80 [ 70.695372][ T657] ? clear_bhb_loop+0x30/0x80 [ 70.700090][ T657] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 70.706684][ T657] RIP: 0033:0x7efcae35ac4e [ 70.711118][ T657] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 70.731097][ T657] RSP: 002b:00007efcae1ddfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 70.739809][ T657] RAX: ffffffffffffffda RBX: 00007efcae1de6c0 RCX: 00007efcae35ac4e [ 70.748152][ T657] RDX: 000000000000000f RSI: 00007efcae1de0a0 RDI: 000000000000000a [ 70.756410][ T657] RBP: 00007efcae1de090 R08: 0000000000000000 R09: 0000000000000000 [ 70.764591][ T657] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 70.772746][ T657] R13: 00007efcae5e6128 R14: 00007efcae5e6090 R15: 00007fff33c16a58 [ 70.780769][ T657] [ 70.789510][ T669] FAULT_INJECTION: forcing a failure. [ 70.789510][ T669] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 70.789588][ T665] FAULT_INJECTION: forcing a failure. [ 70.789588][ T665] name failslab, interval 1, probability 0, space 0, times 0 [ 70.789612][ T665] CPU: 0 PID: 665 Comm: syz.6.71 Not tainted syzkaller #0 [ 70.789632][ T665] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 70.789644][ T665] Call Trace: [ 70.789650][ T665] [ 70.840074][ T665] __dump_stack+0x21/0x24 [ 70.844523][ T665] dump_stack_lvl+0x110/0x170 [ 70.849236][ T665] ? __cfi_dump_stack_lvl+0x8/0x8 [ 70.854372][ T665] ? unwind_get_return_address+0x4d/0x90 [ 70.860223][ T665] ? __cfi_stack_trace_consume_entry+0x10/0x10 [ 70.866593][ T665] dump_stack+0x15/0x24 [ 70.870813][ T665] should_fail_ex+0x3d4/0x520 [ 70.875631][ T665] __should_failslab+0xac/0xf0 [ 70.880519][ T665] ? tracepoint_probe_unregister+0x211/0x8e0 [ 70.886803][ T665] should_failslab+0x9/0x20 [ 70.891451][ T665] __kmem_cache_alloc_node+0x3d/0x2c0 [ 70.897151][ T665] ? __cfi_mutex_lock+0x10/0x10 [ 70.902232][ T665] ? delete_node+0x3dc/0xa60 [ 70.906974][ T665] ? tracepoint_probe_unregister+0x211/0x8e0 [ 70.913398][ T665] __kmalloc+0xa1/0x1e0 [ 70.917662][ T665] ? __cfi___bpf_trace_neigh_update+0x10/0x10 [ 70.923810][ T665] tracepoint_probe_unregister+0x211/0x8e0 [ 70.929836][ T665] bpf_probe_unregister+0x61/0x70 [ 70.935436][ T665] bpf_raw_tp_link_release+0x63/0x90 [ 70.940766][ T665] bpf_link_free+0x13a/0x3a0 [ 70.945491][ T665] ? bpf_link_put_deferred+0x20/0x20 [ 70.951002][ T665] bpf_link_release+0x15f/0x170 [ 70.956731][ T665] ? __cfi_bpf_link_release+0x10/0x10 [ 70.962225][ T665] __fput+0x1fc/0x8f0 [ 70.966242][ T665] ____fput+0x15/0x20 [ 70.970644][ T665] task_work_run+0x1e1/0x250 [ 70.975595][ T665] ? __cfi_task_work_run+0x10/0x10 [ 70.981255][ T665] ? fput+0x15b/0x1a0 [ 70.985354][ T665] exit_to_user_mode_loop+0x9b/0xb0 [ 70.990760][ T665] exit_to_user_mode_prepare+0x87/0xd0 [ 70.996332][ T665] syscall_exit_to_user_mode+0x1a/0x30 [ 71.001921][ T665] do_syscall_64+0x58/0xa0 [ 71.006477][ T665] ? clear_bhb_loop+0x30/0x80 [ 71.011292][ T665] ? clear_bhb_loop+0x30/0x80 [ 71.016436][ T665] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 71.022440][ T665] RIP: 0033:0x7f8aac99a379 [ 71.026979][ T665] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 [ 71.047233][ T665] RSP: 002b:00007f8aad835028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 71.056307][ T665] RAX: 0000000000000000 RBX: 00007f8aacbe5fa0 RCX: 00007f8aac99a379 [ 71.064501][ T665] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009 [ 71.072934][ T665] RBP: 00007f8aad835090 R08: 0000000000000000 R09: 0000000000000000 [ 71.081030][ T665] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 71.089552][ T665] R13: 00007f8aacbe6038 R14: 00007f8aacbe5fa0 R15: 00007ffcb57c4af8 [ 71.098085][ T665] [ 71.105613][ T669] CPU: 0 PID: 669 Comm: syz.2.72 Not tainted syzkaller #0 [ 71.112866][ T669] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 71.123207][ T669] Call Trace: [ 71.126855][ T669] [ 71.130171][ T669] __dump_stack+0x21/0x24 [ 71.134639][ T669] dump_stack_lvl+0x110/0x170 [ 71.139429][ T669] ? __cfi_dump_stack_lvl+0x8/0x8 [ 71.144479][ T669] dump_stack+0x15/0x24 [ 71.148839][ T669] should_fail_ex+0x3d4/0x520 [ 71.153674][ T669] should_fail+0xb/0x10 [ 71.157970][ T669] should_fail_usercopy+0x1a/0x20 [ 71.163370][ T669] _copy_to_user+0x1e/0x90 [ 71.168184][ T669] simple_read_from_buffer+0xe9/0x160 [ 71.173675][ T669] proc_fail_nth_read+0x1a6/0x220 [ 71.178727][ T669] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 71.184373][ T669] ? security_file_permission+0x94/0xb0 [ 71.189945][ T669] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 71.196135][ T669] vfs_read+0x27a/0x910 [ 71.200430][ T669] ? __cfi_vfs_read+0x10/0x10 [ 71.205133][ T669] ? __kasan_check_write+0x14/0x20 [ 71.210618][ T669] ? mutex_lock+0x93/0x1b0 [ 71.215326][ T669] ? __cfi_mutex_lock+0x10/0x10 [ 71.220482][ T669] ? __fdget_pos+0x2cd/0x380 [ 71.225281][ T669] ? ksys_read+0x71/0x250 [ 71.229815][ T669] ksys_read+0x149/0x250 [ 71.234622][ T669] ? __cfi_ksys_read+0x10/0x10 [ 71.239677][ T669] __x64_sys_read+0x7b/0x90 [ 71.244297][ T669] x64_sys_call+0x2f/0x9a0 [ 71.249024][ T669] do_syscall_64+0x4c/0xa0 [ 71.253637][ T669] ? clear_bhb_loop+0x30/0x80 [ 71.258537][ T669] ? clear_bhb_loop+0x30/0x80 [ 71.263426][ T669] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 71.269525][ T669] RIP: 0033:0x7fd2db95ac4e [ 71.274238][ T669] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 71.295092][ T669] RSP: 002b:00007fd2dc7e1fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 71.303900][ T669] RAX: ffffffffffffffda RBX: 00007fd2dc7e26c0 RCX: 00007fd2db95ac4e [ 71.311901][ T669] RDX: 000000000000000f RSI: 00007fd2dc7e20a0 RDI: 0000000000000009 [ 71.320294][ T669] RBP: 00007fd2dc7e2090 R08: 0000000000000000 R09: 0000000000000000 [ 71.328311][ T669] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 71.336392][ T669] R13: 00007fd2dbbe6128 R14: 00007fd2dbbe6090 R15: 00007ffcfb1b8b38 [ 71.345020][ T669] [ 71.372114][ T672] FAULT_INJECTION: forcing a failure. [ 71.372114][ T672] name failslab, interval 1, probability 0, space 0, times 0 [ 71.392767][ T672] CPU: 0 PID: 672 Comm: syz.1.73 Not tainted syzkaller #0 [ 71.400224][ T672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 71.410760][ T672] Call Trace: [ 71.414234][ T672] [ 71.417196][ T672] __dump_stack+0x21/0x24 [ 71.421587][ T672] dump_stack_lvl+0x110/0x170 [ 71.426309][ T672] ? __cfi_dump_stack_lvl+0x8/0x8 [ 71.431377][ T672] ? call_rcu+0xb90/0xf90 [ 71.435922][ T672] ? __cfi_stack_trace_consume_entry+0x10/0x10 [ 71.442466][ T672] dump_stack+0x15/0x24 [ 71.447347][ T672] should_fail_ex+0x3d4/0x520 [ 71.452223][ T672] __should_failslab+0xac/0xf0 [ 71.457664][ T672] ? tracepoint_probe_unregister+0x211/0x8e0 [ 71.464217][ T672] should_failslab+0x9/0x20 [ 71.468924][ T672] __kmem_cache_alloc_node+0x3d/0x2c0 [ 71.474869][ T672] ? __cfi_mutex_lock+0x10/0x10 [ 71.480125][ T672] ? tracepoint_probe_unregister+0x211/0x8e0 [ 71.486708][ T672] __kmalloc+0xa1/0x1e0 [ 71.491199][ T672] ? __cfi___bpf_trace_neigh_update+0x10/0x10 [ 71.497684][ T672] tracepoint_probe_unregister+0x211/0x8e0 [ 71.503936][ T672] bpf_probe_unregister+0x61/0x70 [ 71.509093][ T672] bpf_raw_tp_link_release+0x63/0x90 [ 71.514667][ T672] bpf_link_free+0x13a/0x3a0 [ 71.519663][ T672] ? bpf_link_put_deferred+0x20/0x20 [ 71.525617][ T672] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 71.531901][ T672] bpf_link_release+0x15f/0x170 [ 71.536874][ T672] ? __cfi_bpf_link_release+0x10/0x10 [ 71.542538][ T672] __fput+0x1fc/0x8f0 [ 71.546626][ T672] ____fput+0x15/0x20 [ 71.550635][ T672] task_work_run+0x1e1/0x250 [ 71.555338][ T672] ? __cfi_task_work_run+0x10/0x10 [ 71.560650][ T672] ? fput+0x15b/0x1a0 [ 71.564662][ T672] exit_to_user_mode_loop+0x9b/0xb0 [ 71.569973][ T672] exit_to_user_mode_prepare+0x87/0xd0 [ 71.575774][ T672] syscall_exit_to_user_mode+0x1a/0x30 [ 71.581536][ T672] do_syscall_64+0x58/0xa0 [ 71.586246][ T672] ? clear_bhb_loop+0x30/0x80 [ 71.591032][ T672] ? clear_bhb_loop+0x30/0x80 [ 71.595819][ T672] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 71.601847][ T672] RIP: 0033:0x7f25fd99a379 [ 71.606392][ T672] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 [ 71.626465][ T672] RSP: 002b:00007f25fe852028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 71.635098][ T672] RAX: 0000000000000000 RBX: 00007f25fdbe6090 RCX: 00007f25fd99a379 [ 71.643454][ T672] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009 [ 71.652416][ T672] RBP: 00007f25fe852090 R08: 0000000000000000 R09: 0000000000000000 [ 71.660765][ T672] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 71.668936][ T672] R13: 00007f25fdbe6128 R14: 00007f25fdbe6090 R15: 00007ffced4f41c8 [ 71.677109][ T672] [ 71.727969][ T680] FAULT_INJECTION: forcing a failure. [ 71.727969][ T680] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 71.743587][ T680] CPU: 0 PID: 680 Comm: syz.2.76 Not tainted syzkaller #0 [ 71.751101][ T680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 71.761385][ T680] Call Trace: [ 71.764707][ T680] [ 71.767750][ T680] __dump_stack+0x21/0x24 [ 71.772300][ T680] dump_stack_lvl+0x110/0x170 [ 71.777017][ T680] ? __cfi_dump_stack_lvl+0x8/0x8 [ 71.782254][ T680] dump_stack+0x15/0x24 [ 71.786444][ T680] should_fail_ex+0x3d4/0x520 [ 71.791227][ T680] should_fail+0xb/0x10 [ 71.796208][ T680] should_fail_usercopy+0x1a/0x20 [ 71.801562][ T680] _copy_to_user+0x1e/0x90 [ 71.806129][ T680] simple_read_from_buffer+0xe9/0x160 [ 71.811548][ T680] proc_fail_nth_read+0x1a6/0x220 [ 71.816701][ T680] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 71.822375][ T680] ? security_file_permission+0x94/0xb0 [ 71.828035][ T680] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 71.833797][ T680] vfs_read+0x27a/0x910 [ 71.838177][ T680] ? __cfi_vfs_read+0x10/0x10 [ 71.843054][ T680] ? __kasan_check_write+0x14/0x20 [ 71.848730][ T680] ? mutex_lock+0x93/0x1b0 [ 71.853263][ T680] ? __cfi_mutex_lock+0x10/0x10 [ 71.858157][ T680] ? __fdget_pos+0x2cd/0x380 [ 71.863044][ T680] ? ksys_read+0x71/0x250 [ 71.867401][ T680] ksys_read+0x149/0x250 [ 71.871753][ T680] ? __cfi_ksys_read+0x10/0x10 [ 71.876712][ T680] ? fput+0x15b/0x1a0 [ 71.881427][ T680] ? debug_smp_processor_id+0x17/0x20 [ 71.887710][ T680] __x64_sys_read+0x7b/0x90 [ 71.892611][ T680] x64_sys_call+0x2f/0x9a0 [ 71.897309][ T680] do_syscall_64+0x4c/0xa0 [ 71.901754][ T680] ? clear_bhb_loop+0x30/0x80 [ 71.906593][ T680] ? clear_bhb_loop+0x30/0x80 [ 71.911826][ T680] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 71.917916][ T680] RIP: 0033:0x7fd2db95ac4e [ 71.922362][ T680] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 71.942870][ T680] RSP: 002b:00007fd2dc802fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 71.951339][ T680] RAX: ffffffffffffffda RBX: 00007fd2dc8036c0 RCX: 00007fd2db95ac4e [ 71.959624][ T680] RDX: 000000000000000f RSI: 00007fd2dc8030a0 RDI: 000000000000000a [ 71.967996][ T680] RBP: 00007fd2dc803090 R08: 0000000000000000 R09: 0000000000000000 [ 71.976266][ T680] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 71.984438][ T680] R13: 00007fd2dbbe6038 R14: 00007fd2dbbe5fa0 R15: 00007ffcfb1b8b38 [ 71.992969][ T680] [ 71.998104][ T676] FAULT_INJECTION: forcing a failure. [ 71.998104][ T676] name failslab, interval 1, probability 0, space 0, times 0 [ 72.016876][ T676] CPU: 1 PID: 676 Comm: syz.0.74 Not tainted syzkaller #0 [ 72.024154][ T676] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 72.034683][ T676] Call Trace: [ 72.038277][ T676] [ 72.041250][ T676] __dump_stack+0x21/0x24 [ 72.046074][ T676] dump_stack_lvl+0x110/0x170 [ 72.050895][ T676] ? __cfi_dump_stack_lvl+0x8/0x8 [ 72.056046][ T676] ? unwind_get_return_address+0x4d/0x90 [ 72.061797][ T676] ? __cfi_stack_trace_consume_entry+0x10/0x10 [ 72.068086][ T676] dump_stack+0x15/0x24 [ 72.072787][ T676] should_fail_ex+0x3d4/0x520 [ 72.077499][ T676] __should_failslab+0xac/0xf0 [ 72.082295][ T676] ? tracepoint_probe_unregister+0x211/0x8e0 [ 72.088440][ T676] should_failslab+0x9/0x20 [ 72.093054][ T676] __kmem_cache_alloc_node+0x3d/0x2c0 [ 72.098723][ T676] ? __cfi_mutex_lock+0x10/0x10 [ 72.103616][ T676] ? delete_node+0x3e6/0xa60 [ 72.108235][ T676] ? tracepoint_probe_unregister+0x211/0x8e0 [ 72.114546][ T676] __kmalloc+0xa1/0x1e0 [ 72.118770][ T676] ? __cfi___bpf_trace_neigh_update+0x10/0x10 [ 72.124872][ T676] tracepoint_probe_unregister+0x211/0x8e0 [ 72.130888][ T676] bpf_probe_unregister+0x61/0x70 [ 72.136140][ T676] bpf_raw_tp_link_release+0x63/0x90 [ 72.141903][ T676] bpf_link_free+0x13a/0x3a0 [ 72.146643][ T676] ? bpf_link_put_deferred+0x20/0x20 [ 72.152158][ T676] bpf_link_release+0x15f/0x170 [ 72.157419][ T676] ? __cfi_bpf_link_release+0x10/0x10 [ 72.163184][ T676] __fput+0x1fc/0x8f0 [ 72.167206][ T676] ____fput+0x15/0x20 [ 72.171306][ T676] task_work_run+0x1e1/0x250 [ 72.176197][ T676] ? __cfi_task_work_run+0x10/0x10 [ 72.181527][ T676] ? fput+0x15b/0x1a0 [ 72.185803][ T676] exit_to_user_mode_loop+0x9b/0xb0 [ 72.191396][ T676] exit_to_user_mode_prepare+0x87/0xd0 [ 72.197608][ T676] syscall_exit_to_user_mode+0x1a/0x30 [ 72.203118][ T676] do_syscall_64+0x58/0xa0 [ 72.207656][ T676] ? clear_bhb_loop+0x30/0x80 [ 72.212372][ T676] ? clear_bhb_loop+0x30/0x80 [ 72.217441][ T676] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 72.223637][ T676] RIP: 0033:0x7efcae39a379 [ 72.228088][ T676] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 [ 72.248771][ T676] RSP: 002b:00007efcae1ff028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 72.257737][ T676] RAX: 0000000000000000 RBX: 00007efcae5e5fa0 RCX: 00007efcae39a379 [ 72.265989][ T676] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009 [ 72.274762][ T676] RBP: 00007efcae1ff090 R08: 0000000000000000 R09: 0000000000000000 [ 72.283128][ T676] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 72.291213][ T676] R13: 00007efcae5e6038 R14: 00007efcae5e5fa0 R15: 00007fff33c16a58 [ 72.299828][ T676] [ 72.309460][ T679] FAULT_INJECTION: forcing a failure. [ 72.309460][ T679] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 72.325605][ T689] FAULT_INJECTION: forcing a failure. [ 72.325605][ T689] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 72.353190][ T685] FAULT_INJECTION: forcing a failure. [ 72.353190][ T685] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 72.369558][ T685] CPU: 0 PID: 685 Comm: syz.5.77 Not tainted syzkaller #0 [ 72.376994][ T685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 72.387441][ T685] Call Trace: [ 72.390756][ T685] [ 72.393717][ T685] __dump_stack+0x21/0x24 [ 72.398104][ T685] dump_stack_lvl+0x110/0x170 [ 72.402909][ T685] ? __cfi_dump_stack_lvl+0x8/0x8 [ 72.408329][ T685] dump_stack+0x15/0x24 [ 72.412528][ T685] should_fail_ex+0x3d4/0x520 [ 72.417676][ T685] should_fail+0xb/0x10 [ 72.421858][ T685] should_fail_usercopy+0x1a/0x20 [ 72.427021][ T685] _copy_to_user+0x1e/0x90 [ 72.431534][ T685] simple_read_from_buffer+0xe9/0x160 [ 72.437041][ T685] proc_fail_nth_read+0x1a6/0x220 [ 72.442207][ T685] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 72.447800][ T685] ? security_file_permission+0x94/0xb0 [ 72.453493][ T685] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 72.459085][ T685] vfs_read+0x27a/0x910 [ 72.463361][ T685] ? __cfi_vfs_read+0x10/0x10 [ 72.468074][ T685] ? irqentry_exit+0x37/0x40 [ 72.472901][ T685] ? sysvec_apic_timer_interrupt+0x64/0xc0 [ 72.479205][ T685] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 72.485683][ T685] ksys_read+0x149/0x250 [ 72.490165][ T685] ? __cfi_ksys_read+0x10/0x10 [ 72.495250][ T685] ? fpregs_restore_userregs+0x128/0x260 [ 72.501197][ T685] __x64_sys_read+0x7b/0x90 [ 72.505831][ T685] x64_sys_call+0x2f/0x9a0 [ 72.510291][ T685] do_syscall_64+0x4c/0xa0 [ 72.514997][ T685] ? clear_bhb_loop+0x30/0x80 [ 72.519795][ T685] ? clear_bhb_loop+0x30/0x80 [ 72.524794][ T685] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 72.530988][ T685] RIP: 0033:0x7fe2c675ac4e [ 72.535547][ T685] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 72.556100][ T685] RSP: 002b:00007fe2c76edfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 72.565184][ T685] RAX: ffffffffffffffda RBX: 00007fe2c76ee6c0 RCX: 00007fe2c675ac4e [ 72.573366][ T685] RDX: 000000000000000f RSI: 00007fe2c76ee0a0 RDI: 000000000000000a [ 72.581728][ T685] RBP: 00007fe2c76ee090 R08: 0000000000000000 R09: 0000000000000000 [ 72.590466][ T685] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 72.599183][ T685] R13: 00007fe2c69e6038 R14: 00007fe2c69e5fa0 R15: 00007fff66458978 [ 72.607633][ T685] [ 72.611500][ T679] CPU: 0 PID: 679 Comm: syz.6.75 Not tainted syzkaller #0 [ 72.619016][ T679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 72.629371][ T679] Call Trace: [ 72.632706][ T679] [ 72.635770][ T679] __dump_stack+0x21/0x24 [ 72.640426][ T679] dump_stack_lvl+0x110/0x170 [ 72.647427][ T679] ? __cfi_dump_stack_lvl+0x8/0x8 [ 72.653878][ T679] dump_stack+0x15/0x24 [ 72.658968][ T679] should_fail_ex+0x3d4/0x520 [ 72.665163][ T679] should_fail+0xb/0x10 [ 72.669767][ T679] should_fail_usercopy+0x1a/0x20 [ 72.675290][ T679] _copy_to_user+0x1e/0x90 [ 72.680827][ T679] simple_read_from_buffer+0xe9/0x160 [ 72.686776][ T679] proc_fail_nth_read+0x1a6/0x220 [ 72.692031][ T679] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 72.697714][ T679] ? security_file_permission+0x94/0xb0 [ 72.703752][ T679] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 72.709406][ T679] vfs_read+0x27a/0x910 [ 72.713652][ T679] ? __cfi_vfs_read+0x10/0x10 [ 72.718487][ T679] ? __kasan_check_write+0x14/0x20 [ 72.723626][ T679] ? mutex_lock+0x93/0x1b0 [ 72.728431][ T679] ? __cfi_mutex_lock+0x10/0x10 [ 72.733503][ T679] ? __fdget_pos+0x2cd/0x380 [ 72.738544][ T679] ? ksys_read+0x71/0x250 [ 72.743017][ T679] ksys_read+0x149/0x250 [ 72.747739][ T679] ? __cfi_ksys_read+0x10/0x10 [ 72.752828][ T679] ? fpregs_restore_userregs+0x128/0x260 [ 72.758840][ T679] __x64_sys_read+0x7b/0x90 [ 72.763562][ T679] x64_sys_call+0x2f/0x9a0 [ 72.768214][ T679] do_syscall_64+0x4c/0xa0 [ 72.772883][ T679] ? clear_bhb_loop+0x30/0x80 [ 72.778037][ T679] ? clear_bhb_loop+0x30/0x80 [ 72.782932][ T679] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 72.788943][ T679] RIP: 0033:0x7f8aac95ac4e [ 72.793470][ T679] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 72.814062][ T679] RSP: 002b:00007f8aad834fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 72.822789][ T679] RAX: ffffffffffffffda RBX: 00007f8aad8356c0 RCX: 00007f8aac95ac4e [ 72.830964][ T679] RDX: 000000000000000f RSI: 00007f8aad8350a0 RDI: 0000000000000009 [ 72.839771][ T679] RBP: 00007f8aad835090 R08: 0000000000000000 R09: 0000000000000000 [ 72.848008][ T679] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 72.856383][ T679] R13: 00007f8aacbe6038 R14: 00007f8aacbe5fa0 R15: 00007ffcb57c4af8 [ 72.865009][ T679] [ 72.869431][ T689] CPU: 0 PID: 689 Comm: syz.2.79 Not tainted syzkaller #0 [ 72.876698][ T689] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 72.887234][ T689] Call Trace: [ 72.890629][ T689] [ 72.893592][ T689] __dump_stack+0x21/0x24 [ 72.898154][ T689] dump_stack_lvl+0x110/0x170 [ 72.903053][ T689] ? __cfi_dump_stack_lvl+0x8/0x8 [ 72.908473][ T689] dump_stack+0x15/0x24 [ 72.912682][ T689] should_fail_ex+0x3d4/0x520 [ 72.917619][ T689] should_fail+0xb/0x10 [ 72.920525][ T690] FAULT_INJECTION: forcing a failure. [ 72.920525][ T690] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 72.921987][ T689] should_fail_usercopy+0x1a/0x20 [ 72.940434][ T689] _copy_to_user+0x1e/0x90 [ 72.945069][ T689] simple_read_from_buffer+0xe9/0x160 [ 72.950574][ T689] proc_fail_nth_read+0x1a6/0x220 [ 72.955910][ T689] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 72.961872][ T689] ? security_file_permission+0x94/0xb0 [ 72.967834][ T689] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 72.973684][ T689] vfs_read+0x27a/0x910 [ 72.977961][ T689] ? __cfi_vfs_read+0x10/0x10 [ 72.982681][ T689] ? __kasan_check_write+0x14/0x20 [ 72.988014][ T689] ? mutex_lock+0x93/0x1b0 [ 72.992834][ T689] ? __cfi_mutex_lock+0x10/0x10 [ 72.998006][ T689] ? __fdget_pos+0x2cd/0x380 [ 73.002902][ T689] ? ksys_read+0x71/0x250 [ 73.007440][ T689] ksys_read+0x149/0x250 [ 73.011723][ T689] ? __cfi_ksys_read+0x10/0x10 [ 73.016863][ T689] ? fput+0x15b/0x1a0 [ 73.020910][ T689] ? debug_smp_processor_id+0x17/0x20 [ 73.026594][ T689] __x64_sys_read+0x7b/0x90 [ 73.031251][ T689] x64_sys_call+0x2f/0x9a0 [ 73.035890][ T689] do_syscall_64+0x4c/0xa0 [ 73.040535][ T689] ? clear_bhb_loop+0x30/0x80 [ 73.045486][ T689] ? clear_bhb_loop+0x30/0x80 [ 73.050576][ T689] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 73.056715][ T689] RIP: 0033:0x7fd2db95ac4e [ 73.061700][ T689] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 73.067897][ T702] FAULT_INJECTION: forcing a failure. [ 73.067897][ T702] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 73.081929][ T689] RSP: 002b:00007fd2dc802fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 73.081956][ T689] RAX: ffffffffffffffda RBX: 00007fd2dc8036c0 RCX: 00007fd2db95ac4e [ 73.081971][ T689] RDX: 000000000000000f RSI: 00007fd2dc8030a0 RDI: 000000000000000a [ 73.081984][ T689] RBP: 00007fd2dc803090 R08: 0000000000000000 R09: 0000000000000000 [ 73.081997][ T689] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 73.082008][ T689] R13: 00007fd2dbbe6038 R14: 00007fd2dbbe5fa0 R15: 00007ffcfb1b8b38 [ 73.082029][ T689] [ 73.115076][ T703] FAULT_INJECTION: forcing a failure. [ 73.115076][ T703] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 73.140559][ T702] CPU: 0 PID: 702 Comm: syz.5.81 Not tainted syzkaller #0 [ 73.171613][ T702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 73.181788][ T702] Call Trace: [ 73.185178][ T702] [ 73.188132][ T702] __dump_stack+0x21/0x24 [ 73.192499][ T702] dump_stack_lvl+0x110/0x170 [ 73.197231][ T702] ? __cfi_dump_stack_lvl+0x8/0x8 [ 73.202367][ T702] dump_stack+0x15/0x24 [ 73.206729][ T702] should_fail_ex+0x3d4/0x520 [ 73.211620][ T702] should_fail+0xb/0x10 [ 73.215894][ T702] should_fail_usercopy+0x1a/0x20 [ 73.221037][ T702] _copy_to_user+0x1e/0x90 [ 73.225585][ T702] simple_read_from_buffer+0xe9/0x160 [ 73.231185][ T702] proc_fail_nth_read+0x1a6/0x220 [ 73.236698][ T702] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 73.242275][ T702] ? security_file_permission+0x94/0xb0 [ 73.247933][ T702] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 73.253702][ T702] vfs_read+0x27a/0x910 [ 73.258840][ T702] ? __cfi_vfs_read+0x10/0x10 [ 73.263983][ T702] ? __kasan_check_write+0x14/0x20 [ 73.269475][ T702] ? mutex_lock+0x93/0x1b0 [ 73.274465][ T702] ? __cfi_mutex_lock+0x10/0x10 [ 73.279532][ T702] ? __fdget_pos+0x2cd/0x380 [ 73.284229][ T702] ? ksys_read+0x71/0x250 [ 73.288669][ T702] ksys_read+0x149/0x250 [ 73.293297][ T702] ? __cfi_ksys_read+0x10/0x10 [ 73.298173][ T702] ? debug_smp_processor_id+0x17/0x20 [ 73.303568][ T702] __x64_sys_read+0x7b/0x90 [ 73.308196][ T702] x64_sys_call+0x2f/0x9a0 [ 73.312990][ T702] do_syscall_64+0x4c/0xa0 [ 73.317692][ T702] ? clear_bhb_loop+0x30/0x80 [ 73.322666][ T702] ? clear_bhb_loop+0x30/0x80 [ 73.327477][ T702] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 73.333581][ T702] RIP: 0033:0x7fe2c675ac4e [ 73.338124][ T702] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 73.358625][ T702] RSP: 002b:00007fe2c76abfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 73.367333][ T702] RAX: ffffffffffffffda RBX: 00007fe2c76ac6c0 RCX: 00007fe2c675ac4e [ 73.375678][ T702] RDX: 000000000000000f RSI: 00007fe2c76ac0a0 RDI: 0000000000000007 [ 73.383689][ T702] RBP: 00007fe2c76ac090 R08: 0000000000000000 R09: 0000000000000000 [ 73.391866][ T702] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 73.400952][ T702] R13: 00007fe2c69e6218 R14: 00007fe2c69e6180 R15: 00007fff66458978 [ 73.409223][ T702] [ 73.413908][ T703] CPU: 0 PID: 703 Comm: syz.6.82 Not tainted syzkaller #0 [ 73.421074][ T703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 73.431650][ T703] Call Trace: [ 73.433308][ T701] FAULT_INJECTION: forcing a failure. [ 73.433308][ T701] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 73.434965][ T703] [ 73.434975][ T703] __dump_stack+0x21/0x24 [ 73.435002][ T703] dump_stack_lvl+0x110/0x170 [ 73.435023][ T703] ? __cfi_dump_stack_lvl+0x8/0x8 [ 73.466120][ T703] dump_stack+0x15/0x24 [ 73.470595][ T703] should_fail_ex+0x3d4/0x520 [ 73.476021][ T703] should_fail+0xb/0x10 [ 73.480697][ T703] should_fail_usercopy+0x1a/0x20 [ 73.486300][ T703] _copy_to_user+0x1e/0x90 [ 73.490780][ T703] simple_read_from_buffer+0xe9/0x160 [ 73.496371][ T703] proc_fail_nth_read+0x1a6/0x220 [ 73.501554][ T703] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 73.507150][ T703] ? security_file_permission+0x94/0xb0 [ 73.512909][ T703] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 73.518499][ T703] vfs_read+0x27a/0x910 [ 73.522707][ T703] ? __cfi_vfs_read+0x10/0x10 [ 73.527514][ T703] ? __kasan_check_write+0x14/0x20 [ 73.533016][ T703] ? mutex_lock+0x93/0x1b0 [ 73.537826][ T703] ? __cfi_mutex_lock+0x10/0x10 [ 73.542760][ T703] ? __fdget_pos+0x2cd/0x380 [ 73.547380][ T703] ? ksys_read+0x71/0x250 [ 73.551739][ T703] ksys_read+0x149/0x250 [ 73.556106][ T703] ? __cfi_ksys_read+0x10/0x10 [ 73.561004][ T703] ? debug_smp_processor_id+0x17/0x20 [ 73.566603][ T703] __x64_sys_read+0x7b/0x90 [ 73.571149][ T703] x64_sys_call+0x2f/0x9a0 [ 73.573809][ T707] FAULT_INJECTION: forcing a failure. [ 73.573809][ T707] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 73.575604][ T703] do_syscall_64+0x4c/0xa0 [ 73.575639][ T703] ? clear_bhb_loop+0x30/0x80 [ 73.598932][ T703] ? clear_bhb_loop+0x30/0x80 [ 73.604368][ T703] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 73.610759][ T703] RIP: 0033:0x7f8aac95ac4e [ 73.615312][ T703] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 73.635399][ T703] RSP: 002b:00007f8aad7f2fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 73.643869][ T703] RAX: ffffffffffffffda RBX: 00007f8aad7f36c0 RCX: 00007f8aac95ac4e [ 73.652229][ T703] RDX: 000000000000000f RSI: 00007f8aad7f30a0 RDI: 0000000000000006 [ 73.660452][ T703] RBP: 00007f8aad7f3090 R08: 0000000000000000 R09: 0000000000000000 [ 73.668543][ T703] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 73.676719][ T703] R13: 00007f8aacbe6218 R14: 00007f8aacbe6180 R15: 00007ffcb57c4af8 [ 73.684982][ T703] [ 73.688026][ T690] CPU: 1 PID: 690 Comm: syz.1.78 Not tainted syzkaller #0 [ 73.695534][ T690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 73.705793][ T690] Call Trace: [ 73.709266][ T690] [ 73.712218][ T690] __dump_stack+0x21/0x24 [ 73.716753][ T690] dump_stack_lvl+0x110/0x170 [ 73.721629][ T690] ? __cfi_dump_stack_lvl+0x8/0x8 [ 73.726684][ T690] dump_stack+0x15/0x24 [ 73.731116][ T690] should_fail_ex+0x3d4/0x520 [ 73.736170][ T690] should_fail+0xb/0x10 [ 73.740346][ T690] should_fail_usercopy+0x1a/0x20 [ 73.745687][ T690] _copy_to_user+0x1e/0x90 [ 73.750271][ T690] simple_read_from_buffer+0xe9/0x160 [ 73.755670][ T690] proc_fail_nth_read+0x1a6/0x220 [ 73.760801][ T690] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 73.766635][ T690] ? security_file_permission+0x94/0xb0 [ 73.772583][ T690] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 73.778238][ T690] vfs_read+0x27a/0x910 [ 73.782419][ T690] ? __cfi_vfs_read+0x10/0x10 [ 73.787120][ T690] ? __kasan_check_write+0x14/0x20 [ 73.792439][ T690] ? mutex_lock+0x93/0x1b0 [ 73.796893][ T690] ? __cfi_mutex_lock+0x10/0x10 [ 73.801972][ T690] ? __fdget_pos+0x2cd/0x380 [ 73.806679][ T690] ? ksys_read+0x71/0x250 [ 73.811129][ T690] ksys_read+0x149/0x250 [ 73.815580][ T690] ? __cfi_ksys_read+0x10/0x10 [ 73.820460][ T690] ? debug_smp_processor_id+0x17/0x20 [ 73.826040][ T690] __x64_sys_read+0x7b/0x90 [ 73.830774][ T690] x64_sys_call+0x2f/0x9a0 [ 73.835649][ T690] do_syscall_64+0x4c/0xa0 [ 73.840103][ T690] ? clear_bhb_loop+0x30/0x80 [ 73.844905][ T690] ? clear_bhb_loop+0x30/0x80 [ 73.849735][ T690] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 73.855764][ T690] RIP: 0033:0x7f25fd95ac4e [ 73.860209][ T690] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 73.880276][ T690] RSP: 002b:00007f25fe851fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 73.889162][ T690] RAX: ffffffffffffffda RBX: 00007f25fe8526c0 RCX: 00007f25fd95ac4e [ 73.897164][ T690] RDX: 000000000000000f RSI: 00007f25fe8520a0 RDI: 000000000000000a [ 73.905595][ T690] RBP: 00007f25fe852090 R08: 0000000000000000 R09: 0000000000000000 [ 73.913677][ T690] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 73.921752][ T690] R13: 00007f25fdbe6128 R14: 00007f25fdbe6090 R15: 00007ffced4f41c8 [ 73.929847][ T690] [ 73.933489][ T701] CPU: 0 PID: 701 Comm: syz.0.80 Not tainted syzkaller #0 [ 73.940924][ T701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 73.951100][ T701] Call Trace: [ 73.954482][ T701] [ 73.957448][ T701] __dump_stack+0x21/0x24 [ 73.962080][ T701] dump_stack_lvl+0x110/0x170 [ 73.967135][ T701] ? __cfi_dump_stack_lvl+0x8/0x8 [ 73.972285][ T701] dump_stack+0x15/0x24 [ 73.976466][ T701] should_fail_ex+0x3d4/0x520 [ 73.981173][ T701] should_fail+0xb/0x10 [ 73.985882][ T701] should_fail_usercopy+0x1a/0x20 [ 73.991021][ T701] _copy_to_user+0x1e/0x90 [ 73.995569][ T701] simple_read_from_buffer+0xe9/0x160 [ 74.001358][ T701] proc_fail_nth_read+0x1a6/0x220 [ 74.006527][ T701] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 74.012108][ T701] ? security_file_permission+0x94/0xb0 [ 74.017799][ T701] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 74.023508][ T701] vfs_read+0x27a/0x910 [ 74.027793][ T701] ? __cfi_vfs_read+0x10/0x10 [ 74.032524][ T701] ? __kasan_check_write+0x14/0x20 [ 74.037928][ T701] ? mutex_lock+0x93/0x1b0 [ 74.042553][ T701] ? __cfi_mutex_lock+0x10/0x10 [ 74.047748][ T701] ? __fdget_pos+0x2cd/0x380 [ 74.052650][ T701] ? ksys_read+0x71/0x250 [ 74.057263][ T701] ksys_read+0x149/0x250 [ 74.061716][ T701] ? __cfi_ksys_read+0x10/0x10 [ 74.066510][ T701] ? debug_smp_processor_id+0x17/0x20 [ 74.072021][ T701] __x64_sys_read+0x7b/0x90 [ 74.076555][ T701] x64_sys_call+0x2f/0x9a0 [ 74.081095][ T701] do_syscall_64+0x4c/0xa0 [ 74.085891][ T701] ? clear_bhb_loop+0x30/0x80 [ 74.090702][ T701] ? clear_bhb_loop+0x30/0x80 [ 74.095502][ T701] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 74.101580][ T701] RIP: 0033:0x7efcae35ac4e [ 74.106114][ T701] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 74.126708][ T701] RSP: 002b:00007efcae1bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 74.135462][ T701] RAX: ffffffffffffffda RBX: 00007efcae1bd6c0 RCX: 00007efcae35ac4e [ 74.143648][ T701] RDX: 000000000000000f RSI: 00007efcae1bd0a0 RDI: 0000000000000006 [ 74.152327][ T701] RBP: 00007efcae1bd090 R08: 0000000000000000 R09: 0000000000000000 [ 74.160863][ T701] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 74.169049][ T701] R13: 00007efcae5e6218 R14: 00007efcae5e6180 R15: 00007fff33c16a58 [ 74.177472][ T701] [ 74.201616][ T707] CPU: 0 PID: 707 Comm: syz.2.83 Not tainted syzkaller #0 [ 74.208807][ T707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 74.218899][ T707] Call Trace: [ 74.222200][ T707] [ 74.225146][ T707] __dump_stack+0x21/0x24 [ 74.229640][ T707] dump_stack_lvl+0x110/0x170 [ 74.234403][ T707] ? __cfi_dump_stack_lvl+0x8/0x8 [ 74.239468][ T707] dump_stack+0x15/0x24 [ 74.243654][ T707] should_fail_ex+0x3d4/0x520 [ 74.248456][ T707] should_fail+0xb/0x10 [ 74.252736][ T707] should_fail_usercopy+0x1a/0x20 [ 74.257826][ T707] _copy_to_user+0x1e/0x90 [ 74.262290][ T707] simple_read_from_buffer+0xe9/0x160 [ 74.267861][ T707] proc_fail_nth_read+0x1a6/0x220 [ 74.272992][ T707] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 74.278646][ T707] ? security_file_permission+0x94/0xb0 [ 74.284757][ T707] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 74.290325][ T707] vfs_read+0x27a/0x910 [ 74.294684][ T707] ? __cfi_vfs_read+0x10/0x10 [ 74.299398][ T707] ? __kasan_check_write+0x14/0x20 [ 74.304613][ T707] ? mutex_lock+0x93/0x1b0 [ 74.309259][ T707] ? __cfi_mutex_lock+0x10/0x10 [ 74.314706][ T707] ? __fdget_pos+0x2cd/0x380 [ 74.319540][ T707] ? ksys_read+0x71/0x250 [ 74.323993][ T707] ksys_read+0x149/0x250 [ 74.328274][ T707] ? __cfi_ksys_read+0x10/0x10 [ 74.333255][ T707] ? debug_smp_processor_id+0x17/0x20 [ 74.339161][ T707] __x64_sys_read+0x7b/0x90 [ 74.343948][ T707] x64_sys_call+0x2f/0x9a0 [ 74.348679][ T707] do_syscall_64+0x4c/0xa0 [ 74.353398][ T707] ? clear_bhb_loop+0x30/0x80 [ 74.358494][ T707] ? clear_bhb_loop+0x30/0x80 [ 74.363429][ T707] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 74.369367][ T707] RIP: 0033:0x7fd2db95ac4e [ 74.373980][ T707] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 74.394052][ T707] RSP: 002b:00007fd2dc7c0fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 74.402490][ T707] RAX: ffffffffffffffda RBX: 00007fd2dc7c16c0 RCX: 00007fd2db95ac4e [ 74.410579][ T707] RDX: 000000000000000f RSI: 00007fd2dc7c10a0 RDI: 0000000000000007 [ 74.418675][ T707] RBP: 00007fd2dc7c1090 R08: 0000000000000000 R09: 0000000000000000 [ 74.426677][ T707] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 74.435295][ T707] R13: 00007fd2dbbe6218 R14: 00007fd2dbbe6180 R15: 00007ffcfb1b8b38 [ 74.443556][ T707] [ 74.452768][ T711] FAULT_INJECTION: forcing a failure. [ 74.452768][ T711] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 74.481627][ T718] FAULT_INJECTION: forcing a failure. [ 74.481627][ T718] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 74.506887][ T711] CPU: 1 PID: 711 Comm: syz.6.85 Not tainted syzkaller #0 [ 74.514372][ T711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 74.524578][ T711] Call Trace: [ 74.527901][ T711] [ 74.531212][ T711] __dump_stack+0x21/0x24 [ 74.535781][ T711] dump_stack_lvl+0x110/0x170 [ 74.540767][ T711] ? __cfi_dump_stack_lvl+0x8/0x8 [ 74.546021][ T711] dump_stack+0x15/0x24 [ 74.550487][ T711] should_fail_ex+0x3d4/0x520 [ 74.555591][ T711] should_fail+0xb/0x10 [ 74.559790][ T711] should_fail_usercopy+0x1a/0x20 [ 74.564939][ T711] _copy_to_user+0x1e/0x90 [ 74.569588][ T711] simple_read_from_buffer+0xe9/0x160 [ 74.575004][ T711] proc_fail_nth_read+0x1a6/0x220 [ 74.580156][ T711] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 74.585733][ T711] ? security_file_permission+0x94/0xb0 [ 74.591771][ T711] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 74.597450][ T711] vfs_read+0x27a/0x910 [ 74.601816][ T711] ? __cfi_vfs_read+0x10/0x10 [ 74.606534][ T711] ? __kasan_check_write+0x14/0x20 [ 74.612026][ T711] ? mutex_lock+0x93/0x1b0 [ 74.616951][ T711] ? __cfi_mutex_lock+0x10/0x10 [ 74.621949][ T711] ? __fdget_pos+0x2cd/0x380 [ 74.626673][ T711] ? ksys_read+0x71/0x250 [ 74.631040][ T711] ksys_read+0x149/0x250 [ 74.635334][ T711] ? __cfi_ksys_read+0x10/0x10 [ 74.640390][ T711] ? debug_smp_processor_id+0x17/0x20 [ 74.646157][ T711] __x64_sys_read+0x7b/0x90 [ 74.650962][ T711] x64_sys_call+0x2f/0x9a0 [ 74.655418][ T711] do_syscall_64+0x4c/0xa0 [ 74.659968][ T711] ? clear_bhb_loop+0x30/0x80 [ 74.664865][ T711] ? clear_bhb_loop+0x30/0x80 [ 74.669677][ T711] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 74.675623][ T711] RIP: 0033:0x7f8aac95ac4e [ 74.680168][ T711] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 74.700151][ T711] RSP: 002b:00007f8aad834fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 74.708633][ T711] RAX: ffffffffffffffda RBX: 00007f8aad8356c0 RCX: 00007f8aac95ac4e [ 74.716821][ T711] RDX: 000000000000000f RSI: 00007f8aad8350a0 RDI: 0000000000000008 [ 74.725011][ T711] RBP: 00007f8aad835090 R08: 0000000000000000 R09: 0000000000000000 [ 74.733198][ T711] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 74.741744][ T711] R13: 00007f8aacbe6038 R14: 00007f8aacbe5fa0 R15: 00007ffcb57c4af8 [ 74.749831][ T711] [ 74.752957][ T718] CPU: 0 PID: 718 Comm: syz.0.86 Not tainted syzkaller #0 [ 74.760203][ T718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 74.770558][ T718] Call Trace: [ 74.773872][ T718] [ 74.776863][ T718] __dump_stack+0x21/0x24 [ 74.781421][ T718] dump_stack_lvl+0x110/0x170 [ 74.786530][ T718] ? __cfi_dump_stack_lvl+0x8/0x8 [ 74.791782][ T718] dump_stack+0x15/0x24 [ 74.796220][ T718] should_fail_ex+0x3d4/0x520 [ 74.801016][ T718] should_fail+0xb/0x10 [ 74.805190][ T718] should_fail_usercopy+0x1a/0x20 [ 74.810233][ T718] _copy_to_user+0x1e/0x90 [ 74.814677][ T718] simple_read_from_buffer+0xe9/0x160 [ 74.820391][ T718] proc_fail_nth_read+0x1a6/0x220 [ 74.825810][ T718] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 74.831379][ T718] ? security_file_permission+0x94/0xb0 [ 74.837035][ T718] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 74.842721][ T718] vfs_read+0x27a/0x910 [ 74.846935][ T718] ? __cfi_vfs_read+0x10/0x10 [ 74.851632][ T718] ? __kasan_check_write+0x14/0x20 [ 74.856844][ T718] ? mutex_lock+0x93/0x1b0 [ 74.861373][ T718] ? __cfi_mutex_lock+0x10/0x10 [ 74.866248][ T718] ? __fdget_pos+0x2cd/0x380 [ 74.870860][ T718] ? ksys_read+0x71/0x250 [ 74.875444][ T718] ksys_read+0x149/0x250 [ 74.879905][ T718] ? __cfi_ksys_read+0x10/0x10 [ 74.884694][ T718] __x64_sys_read+0x7b/0x90 [ 74.889490][ T718] x64_sys_call+0x2f/0x9a0 [ 74.894060][ T718] do_syscall_64+0x4c/0xa0 [ 74.898595][ T718] ? clear_bhb_loop+0x30/0x80 [ 74.903562][ T718] ? clear_bhb_loop+0x30/0x80 [ 74.908347][ T718] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 74.914263][ T718] RIP: 0033:0x7efcae35ac4e [ 74.918784][ T718] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 74.939193][ T718] RSP: 002b:00007efcae1ddfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 74.947631][ T718] RAX: ffffffffffffffda RBX: 00007efcae1de6c0 RCX: 00007efcae35ac4e [ 74.955886][ T718] RDX: 000000000000000f RSI: 00007efcae1de0a0 RDI: 000000000000000a [ 74.963997][ T718] RBP: 00007efcae1de090 R08: 0000000000000000 R09: 0000000000000000 [ 74.971990][ T718] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 74.980151][ T718] R13: 00007efcae5e6128 R14: 00007efcae5e6090 R15: 00007fff33c16a58 [ 74.988245][ T718] [ 74.992222][ T723] FAULT_INJECTION: forcing a failure. [ 74.992222][ T723] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 75.007835][ T723] CPU: 1 PID: 723 Comm: syz.2.88 Not tainted syzkaller #0 [ 75.015378][ T723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 75.025560][ T723] Call Trace: [ 75.029236][ T723] [ 75.032230][ T723] __dump_stack+0x21/0x24 [ 75.036620][ T723] dump_stack_lvl+0x110/0x170 [ 75.041951][ T723] ? __cfi_dump_stack_lvl+0x8/0x8 [ 75.047277][ T723] dump_stack+0x15/0x24 [ 75.051625][ T723] should_fail_ex+0x3d4/0x520 [ 75.056529][ T723] should_fail+0xb/0x10 [ 75.060805][ T723] should_fail_usercopy+0x1a/0x20 [ 75.065844][ T723] _copy_to_user+0x1e/0x90 [ 75.070374][ T723] simple_read_from_buffer+0xe9/0x160 [ 75.075783][ T723] proc_fail_nth_read+0x1a6/0x220 [ 75.080966][ T723] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 75.087152][ T723] ? security_file_permission+0x94/0xb0 [ 75.092754][ T723] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 75.098340][ T723] vfs_read+0x27a/0x910 [ 75.102528][ T723] ? __cfi_vfs_read+0x10/0x10 [ 75.107340][ T723] ? __kasan_check_write+0x14/0x20 [ 75.112732][ T723] ? mutex_lock+0x93/0x1b0 [ 75.117349][ T723] ? __cfi_mutex_lock+0x10/0x10 [ 75.122353][ T723] ? __fdget_pos+0x2cd/0x380 [ 75.127152][ T723] ? ksys_read+0x71/0x250 [ 75.131777][ T723] ksys_read+0x149/0x250 [ 75.136062][ T723] ? __cfi_ksys_read+0x10/0x10 [ 75.140946][ T723] ? debug_smp_processor_id+0x17/0x20 [ 75.146777][ T723] __x64_sys_read+0x7b/0x90 [ 75.151300][ T723] x64_sys_call+0x2f/0x9a0 [ 75.156104][ T723] do_syscall_64+0x4c/0xa0 [ 75.160545][ T723] ? clear_bhb_loop+0x30/0x80 [ 75.165252][ T723] ? clear_bhb_loop+0x30/0x80 [ 75.169962][ T723] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 75.176365][ T723] RIP: 0033:0x7fd2db95ac4e [ 75.180904][ T723] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 75.200914][ T723] RSP: 002b:00007fd2dc7c0fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 75.209537][ T723] RAX: ffffffffffffffda RBX: 00007fd2dc7c16c0 RCX: 00007fd2db95ac4e [ 75.217700][ T723] RDX: 000000000000000f RSI: 00007fd2dc7c10a0 RDI: 0000000000000008 [ 75.225951][ T723] RBP: 00007fd2dc7c1090 R08: 0000000000000000 R09: 0000000000000000 [ 75.234119][ T723] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 75.242194][ T723] R13: 00007fd2dbbe6218 R14: 00007fd2dbbe6180 R15: 00007ffcfb1b8b38 [ 75.250282][ T723] [ 75.254911][ T716] FAULT_INJECTION: forcing a failure. 2026/05/12 05:42:46 executed programs: 82 [ 75.254911][ T716] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 75.260880][ T727] FAULT_INJECTION: forcing a failure. [ 75.260880][ T727] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 75.280912][ T716] CPU: 1 PID: 716 Comm: syz.5.84 Not tainted syzkaller #0 [ 75.289333][ T716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 75.299775][ T716] Call Trace: [ 75.303085][ T716] [ 75.306055][ T716] __dump_stack+0x21/0x24 [ 75.310598][ T716] dump_stack_lvl+0x110/0x170 [ 75.315404][ T716] ? __cfi_dump_stack_lvl+0x8/0x8 [ 75.320740][ T716] dump_stack+0x15/0x24 [ 75.325216][ T716] should_fail_ex+0x3d4/0x520 [ 75.330006][ T716] should_fail+0xb/0x10 [ 75.334448][ T716] should_fail_usercopy+0x1a/0x20 [ 75.337781][ T728] FAULT_INJECTION: forcing a failure. [ 75.337781][ T728] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 75.339590][ T716] _copy_to_user+0x1e/0x90 [ 75.357605][ T716] simple_read_from_buffer+0xe9/0x160 [ 75.363381][ T716] proc_fail_nth_read+0x1a6/0x220 [ 75.368705][ T716] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 75.374274][ T716] ? security_file_permission+0x94/0xb0 [ 75.379852][ T716] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 75.385698][ T716] vfs_read+0x27a/0x910 [ 75.389888][ T716] ? __cfi_vfs_read+0x10/0x10 [ 75.394771][ T716] ? __kasan_check_write+0x14/0x20 [ 75.400431][ T716] ? mutex_lock+0x93/0x1b0 [ 75.404964][ T716] ? __cfi_mutex_lock+0x10/0x10 [ 75.409870][ T716] ? __fdget_pos+0x2cd/0x380 [ 75.414749][ T716] ? ksys_read+0x71/0x250 [ 75.419105][ T716] ksys_read+0x149/0x250 [ 75.423388][ T716] ? __cfi_ksys_read+0x10/0x10 [ 75.428452][ T716] ? debug_smp_processor_id+0x17/0x20 [ 75.433865][ T716] __x64_sys_read+0x7b/0x90 [ 75.438527][ T716] x64_sys_call+0x2f/0x9a0 [ 75.443086][ T716] do_syscall_64+0x4c/0xa0 [ 75.448034][ T716] ? clear_bhb_loop+0x30/0x80 [ 75.452775][ T716] ? clear_bhb_loop+0x30/0x80 [ 75.457506][ T716] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 75.463546][ T716] RIP: 0033:0x7fe2c675ac4e [ 75.468076][ T716] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 75.488500][ T716] RSP: 002b:00007fe2c76ccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 75.497039][ T716] RAX: ffffffffffffffda RBX: 00007fe2c76cd6c0 RCX: 00007fe2c675ac4e [ 75.505308][ T716] RDX: 000000000000000f RSI: 00007fe2c76cd0a0 RDI: 000000000000000a [ 75.513743][ T716] RBP: 00007fe2c76cd090 R08: 0000000000000000 R09: 0000000000000000 [ 75.522518][ T716] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 75.530616][ T716] R13: 00007fe2c69e6128 R14: 00007fe2c69e6090 R15: 00007fff66458978 [ 75.539083][ T716] [ 75.542573][ T727] CPU: 0 PID: 727 Comm: syz.1.87 Not tainted syzkaller #0 [ 75.549871][ T727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 75.560492][ T727] Call Trace: [ 75.563887][ T727] [ 75.566928][ T727] __dump_stack+0x21/0x24 [ 75.571463][ T727] dump_stack_lvl+0x110/0x170 [ 75.576534][ T727] ? __cfi_dump_stack_lvl+0x8/0x8 [ 75.581767][ T727] dump_stack+0x15/0x24 [ 75.585939][ T727] should_fail_ex+0x3d4/0x520 [ 75.590785][ T727] should_fail+0xb/0x10 [ 75.595037][ T727] should_fail_usercopy+0x1a/0x20 [ 75.600301][ T727] _copy_to_user+0x1e/0x90 [ 75.604903][ T727] simple_read_from_buffer+0xe9/0x160 [ 75.610503][ T727] proc_fail_nth_read+0x1a6/0x220 [ 75.615641][ T727] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 75.621725][ T727] ? security_file_permission+0x94/0xb0 [ 75.627660][ T727] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 75.633507][ T727] vfs_read+0x27a/0x910 [ 75.637776][ T727] ? __cfi_vfs_read+0x10/0x10 [ 75.642736][ T727] ? __kasan_check_write+0x14/0x20 [ 75.648134][ T727] ? mutex_lock+0x93/0x1b0 [ 75.652664][ T727] ? __cfi_mutex_lock+0x10/0x10 [ 75.657547][ T727] ? __fdget_pos+0x2cd/0x380 [ 75.662161][ T727] ? ksys_read+0x71/0x250 [ 75.666509][ T727] ksys_read+0x149/0x250 [ 75.670767][ T727] ? __cfi_ksys_read+0x10/0x10 [ 75.675548][ T727] ? debug_smp_processor_id+0x17/0x20 [ 75.680941][ T727] __x64_sys_read+0x7b/0x90 [ 75.685911][ T727] x64_sys_call+0x2f/0x9a0 [ 75.690721][ T727] do_syscall_64+0x4c/0xa0 [ 75.695334][ T727] ? clear_bhb_loop+0x30/0x80 [ 75.700131][ T727] ? clear_bhb_loop+0x30/0x80 [ 75.705026][ T727] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 75.711226][ T727] RIP: 0033:0x7f25fd95ac4e [ 75.715944][ T727] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 75.737490][ T727] RSP: 002b:00007f25fe830fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 75.746164][ T727] RAX: ffffffffffffffda RBX: 00007f25fe8316c0 RCX: 00007f25fd95ac4e [ 75.754310][ T727] RDX: 000000000000000f RSI: 00007f25fe8310a0 RDI: 000000000000000a [ 75.762317][ T727] RBP: 00007f25fe831090 R08: 0000000000000000 R09: 0000000000000000 [ 75.770494][ T727] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 75.778675][ T727] R13: 00007f25fdbe6218 R14: 00007f25fdbe6180 R15: 00007ffced4f41c8 [ 75.786951][ T727] [ 75.793300][ T728] CPU: 0 PID: 728 Comm: syz.0.89 Not tainted syzkaller #0 [ 75.800655][ T728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 75.811083][ T728] Call Trace: [ 75.814944][ T728] [ 75.817902][ T728] __dump_stack+0x21/0x24 [ 75.822296][ T728] dump_stack_lvl+0x110/0x170 [ 75.827001][ T728] ? __cfi_dump_stack_lvl+0x8/0x8 [ 75.832244][ T728] dump_stack+0x15/0x24 [ 75.836590][ T728] should_fail_ex+0x3d4/0x520 [ 75.841576][ T728] should_fail+0xb/0x10 [ 75.845844][ T728] should_fail_usercopy+0x1a/0x20 [ 75.850888][ T728] _copy_to_user+0x1e/0x90 [ 75.855336][ T728] simple_read_from_buffer+0xe9/0x160 [ 75.860831][ T728] proc_fail_nth_read+0x1a6/0x220 [ 75.865872][ T728] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 75.871469][ T728] ? security_file_permission+0x94/0xb0 [ 75.877174][ T728] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 75.882749][ T728] vfs_read+0x27a/0x910 [ 75.886935][ T728] ? __cfi_vfs_read+0x10/0x10 [ 75.891733][ T728] ? __kasan_check_write+0x14/0x20 [ 75.896978][ T728] ? mutex_lock+0x93/0x1b0 [ 75.901442][ T728] ? __cfi_mutex_lock+0x10/0x10 [ 75.906500][ T728] ? __fdget_pos+0x2cd/0x380 [ 75.911459][ T728] ? ksys_read+0x71/0x250 [ 75.915898][ T728] ksys_read+0x149/0x250 [ 75.920159][ T728] ? __cfi_ksys_read+0x10/0x10 [ 75.924950][ T728] ? debug_smp_processor_id+0x17/0x20 [ 75.930427][ T728] __x64_sys_read+0x7b/0x90 [ 75.935211][ T728] x64_sys_call+0x2f/0x9a0 [ 75.939649][ T728] do_syscall_64+0x4c/0xa0 [ 75.944278][ T728] ? clear_bhb_loop+0x30/0x80 [ 75.949205][ T728] ? clear_bhb_loop+0x30/0x80 [ 75.954090][ T728] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 75.960283][ T728] RIP: 0033:0x7efcae35ac4e [ 75.964903][ T728] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 75.985079][ T728] RSP: 002b:00007efcae1bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 75.994149][ T728] RAX: ffffffffffffffda RBX: 00007efcae1bd6c0 RCX: 00007efcae35ac4e [ 76.002321][ T728] RDX: 000000000000000f RSI: 00007efcae1bd0a0 RDI: 0000000000000007 [ 76.010844][ T728] RBP: 00007efcae1bd090 R08: 0000000000000000 R09: 0000000000000000 [ 76.019025][ T728] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 76.027217][ T728] R13: 00007efcae5e6218 R14: 00007efcae5e6180 R15: 00007fff33c16a58 [ 76.035746][ T728] [ 76.091613][ T730] FAULT_INJECTION: forcing a failure. [ 76.091613][ T730] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 76.132794][ T730] CPU: 0 PID: 730 Comm: syz.6.90 Not tainted syzkaller #0 [ 76.140129][ T730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 76.150636][ T730] Call Trace: [ 76.154020][ T730] [ 76.156984][ T730] __dump_stack+0x21/0x24 [ 76.161332][ T730] dump_stack_lvl+0x110/0x170 [ 76.166139][ T730] ? __cfi_dump_stack_lvl+0x8/0x8 [ 76.171462][ T730] dump_stack+0x15/0x24 [ 76.175637][ T730] should_fail_ex+0x3d4/0x520 [ 76.180375][ T730] should_fail+0xb/0x10 [ 76.184557][ T730] should_fail_usercopy+0x1a/0x20 [ 76.189618][ T730] _copy_to_user+0x1e/0x90 [ 76.194342][ T730] simple_read_from_buffer+0xe9/0x160 [ 76.200002][ T730] proc_fail_nth_read+0x1a6/0x220 [ 76.205358][ T730] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 76.211330][ T730] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 76.217156][ T730] vfs_read+0x27a/0x910 [ 76.221440][ T730] ? __cfi_vfs_read+0x10/0x10 [ 76.226242][ T730] ? __kasan_check_write+0x14/0x20 [ 76.231583][ T730] ? mutex_lock+0x93/0x1b0 [ 76.236255][ T730] ? __cfi_mutex_lock+0x10/0x10 [ 76.241316][ T730] ? __fdget_pos+0x2cd/0x380 [ 76.245926][ T730] ? ksys_read+0x71/0x250 [ 76.250332][ T730] ksys_read+0x149/0x250 [ 76.254945][ T730] ? __cfi_ksys_read+0x10/0x10 [ 76.259730][ T730] ? debug_smp_processor_id+0x17/0x20 [ 76.265396][ T730] __x64_sys_read+0x7b/0x90 [ 76.270157][ T730] x64_sys_call+0x2f/0x9a0 [ 76.274945][ T730] do_syscall_64+0x4c/0xa0 [ 76.279563][ T730] ? clear_bhb_loop+0x30/0x80 [ 76.284525][ T730] ? clear_bhb_loop+0x30/0x80 [ 76.289773][ T730] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 76.296257][ T730] RIP: 0033:0x7f8aac95ac4e [ 76.300950][ T730] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 76.321266][ T730] RSP: 002b:00007f8aad834fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 76.329886][ T730] RAX: ffffffffffffffda RBX: 00007f8aad8356c0 RCX: 00007f8aac95ac4e [ 76.339399][ T730] RDX: 000000000000000f RSI: 00007f8aad8350a0 RDI: 0000000000000009 [ 76.347857][ T730] RBP: 00007f8aad835090 R08: 0000000000000000 R09: 0000000000000000 [ 76.356371][ T730] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 76.364580][ T730] R13: 00007f8aacbe6038 R14: 00007f8aacbe5fa0 R15: 00007ffcb57c4af8 [ 76.372772][ T730] [ 76.382264][ T735] FAULT_INJECTION: forcing a failure. [ 76.382264][ T735] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 76.397534][ T735] CPU: 1 PID: 735 Comm: syz.2.91 Not tainted syzkaller #0 [ 76.405063][ T735] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 76.415284][ T735] Call Trace: [ 76.418604][ T735] [ 76.421814][ T735] __dump_stack+0x21/0x24 [ 76.426268][ T735] dump_stack_lvl+0x110/0x170 [ 76.431266][ T735] ? __cfi_dump_stack_lvl+0x8/0x8 [ 76.436507][ T735] dump_stack+0x15/0x24 [ 76.440871][ T735] should_fail_ex+0x3d4/0x520 [ 76.445590][ T735] should_fail+0xb/0x10 [ 76.449950][ T735] should_fail_usercopy+0x1a/0x20 [ 76.455086][ T735] _copy_to_user+0x1e/0x90 [ 76.459984][ T735] simple_read_from_buffer+0xe9/0x160 [ 76.465410][ T735] proc_fail_nth_read+0x1a6/0x220 [ 76.470646][ T735] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 76.476403][ T735] ? security_file_permission+0x94/0xb0 [ 76.482180][ T735] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 76.487947][ T735] vfs_read+0x27a/0x910 [ 76.492141][ T735] ? __cfi_vfs_read+0x10/0x10 [ 76.496848][ T735] ? __kasan_check_write+0x14/0x20 [ 76.502079][ T735] ? mutex_lock+0x93/0x1b0 [ 76.506550][ T735] ? __cfi_mutex_lock+0x10/0x10 [ 76.511488][ T735] ? __fdget_pos+0x2cd/0x380 [ 76.516217][ T735] ? ksys_read+0x71/0x250 [ 76.520958][ T735] ksys_read+0x149/0x250 [ 76.525344][ T735] ? __cfi_ksys_read+0x10/0x10 [ 76.530493][ T735] ? fput+0x15b/0x1a0 [ 76.534702][ T735] ? debug_smp_processor_id+0x17/0x20 [ 76.540204][ T735] __x64_sys_read+0x7b/0x90 [ 76.545321][ T735] x64_sys_call+0x2f/0x9a0 [ 76.550051][ T735] do_syscall_64+0x4c/0xa0 [ 76.554507][ T735] ? clear_bhb_loop+0x30/0x80 [ 76.559427][ T735] ? clear_bhb_loop+0x30/0x80 [ 76.564424][ T735] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 76.570403][ T735] RIP: 0033:0x7fd2db95ac4e [ 76.575029][ T735] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 76.596341][ T735] RSP: 002b:00007fd2dc802fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 76.605496][ T735] RAX: ffffffffffffffda RBX: 00007fd2dc8036c0 RCX: 00007fd2db95ac4e [ 76.613590][ T735] RDX: 000000000000000f RSI: 00007fd2dc8030a0 RDI: 000000000000000a [ 76.622374][ T735] RBP: 00007fd2dc803090 R08: 0000000000000000 R09: 0000000000000000 [ 76.630563][ T735] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 76.638730][ T735] R13: 00007fd2dbbe6038 R14: 00007fd2dbbe5fa0 R15: 00007ffcfb1b8b38 [ 76.647178][ T735] [ 76.664562][ T743] FAULT_INJECTION: forcing a failure. [ 76.664562][ T743] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 76.681552][ T744] FAULT_INJECTION: forcing a failure. [ 76.681552][ T744] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 76.695513][ T745] FAULT_INJECTION: forcing a failure. [ 76.695513][ T745] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 76.706705][ T746] FAULT_INJECTION: forcing a failure. [ 76.706705][ T746] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 76.723032][ T744] CPU: 1 PID: 744 Comm: syz.1.93 Not tainted syzkaller #0 [ 76.723062][ T744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 76.723076][ T744] Call Trace: [ 76.743940][ T744] [ 76.746904][ T744] __dump_stack+0x21/0x24 [ 76.751775][ T744] dump_stack_lvl+0x110/0x170 [ 76.756669][ T744] ? __cfi_dump_stack_lvl+0x8/0x8 [ 76.761964][ T744] dump_stack+0x15/0x24 [ 76.766335][ T744] should_fail_ex+0x3d4/0x520 [ 76.771149][ T744] should_fail+0xb/0x10 [ 76.775524][ T744] should_fail_usercopy+0x1a/0x20 [ 76.781400][ T744] _copy_to_user+0x1e/0x90 [ 76.785873][ T744] simple_read_from_buffer+0xe9/0x160 [ 76.792178][ T744] proc_fail_nth_read+0x1a6/0x220 [ 76.797871][ T744] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 76.803707][ T744] ? security_file_permission+0x94/0xb0 [ 76.809741][ T744] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 76.815679][ T744] vfs_read+0x27a/0x910 [ 76.820315][ T744] ? __cfi_vfs_read+0x10/0x10 [ 76.825041][ T744] ? __kasan_check_write+0x14/0x20 [ 76.830305][ T744] ? mutex_lock+0x93/0x1b0 [ 76.835216][ T744] ? __cfi_mutex_lock+0x10/0x10 [ 76.840296][ T744] ? __fdget_pos+0x2cd/0x380 [ 76.845177][ T744] ? ksys_read+0x71/0x250 [ 76.849531][ T744] ksys_read+0x149/0x250 [ 76.853797][ T744] ? __cfi_ksys_read+0x10/0x10 [ 76.858680][ T744] ? debug_smp_processor_id+0x17/0x20 [ 76.864357][ T744] __x64_sys_read+0x7b/0x90 [ 76.868981][ T744] x64_sys_call+0x2f/0x9a0 [ 76.873606][ T744] do_syscall_64+0x4c/0xa0 [ 76.878317][ T744] ? clear_bhb_loop+0x30/0x80 [ 76.883492][ T744] ? clear_bhb_loop+0x30/0x80 [ 76.888645][ T744] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 76.894689][ T744] RIP: 0033:0x7f25fd95ac4e [ 76.899241][ T744] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 76.919699][ T744] RSP: 002b:00007f25fe851fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 76.928722][ T744] RAX: ffffffffffffffda RBX: 00007f25fe8526c0 RCX: 00007f25fd95ac4e [ 76.936908][ T744] RDX: 000000000000000f RSI: 00007f25fe8520a0 RDI: 000000000000000a [ 76.945165][ T744] RBP: 00007f25fe852090 R08: 0000000000000000 R09: 0000000000000000 [ 76.953509][ T744] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 76.962117][ T744] R13: 00007f25fdbe6128 R14: 00007f25fdbe6090 R15: 00007ffced4f41c8 [ 76.970567][ T744] [ 76.973686][ T745] CPU: 0 PID: 745 Comm: syz.0.94 Not tainted syzkaller #0 [ 76.981011][ T745] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 76.991375][ T745] Call Trace: [ 76.994866][ T745] [ 76.997823][ T745] __dump_stack+0x21/0x24 [ 77.002271][ T745] dump_stack_lvl+0x110/0x170 [ 77.007174][ T745] ? __cfi_dump_stack_lvl+0x8/0x8 [ 77.012240][ T745] dump_stack+0x15/0x24 [ 77.016631][ T745] should_fail_ex+0x3d4/0x520 [ 77.021523][ T745] should_fail+0xb/0x10 [ 77.025812][ T745] should_fail_usercopy+0x1a/0x20 [ 77.030888][ T745] _copy_to_user+0x1e/0x90 [ 77.035430][ T745] simple_read_from_buffer+0xe9/0x160 [ 77.040929][ T745] proc_fail_nth_read+0x1a6/0x220 [ 77.046161][ T745] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 77.051937][ T745] ? security_file_permission+0x94/0xb0 [ 77.057611][ T745] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 77.063198][ T745] vfs_read+0x27a/0x910 [ 77.067382][ T745] ? __cfi_vfs_read+0x10/0x10 [ 77.072083][ T745] ? __kasan_check_write+0x14/0x20 [ 77.077358][ T745] ? mutex_lock+0x93/0x1b0 [ 77.081994][ T745] ? __cfi_mutex_lock+0x10/0x10 [ 77.086963][ T745] ? __fdget_pos+0x2cd/0x380 [ 77.091925][ T745] ? ksys_read+0x71/0x250 [ 77.096543][ T745] ksys_read+0x149/0x250 [ 77.101167][ T745] ? __cfi_ksys_read+0x10/0x10 [ 77.106040][ T745] ? debug_smp_processor_id+0x17/0x20 [ 77.111783][ T745] __x64_sys_read+0x7b/0x90 [ 77.116482][ T745] x64_sys_call+0x2f/0x9a0 [ 77.121183][ T745] do_syscall_64+0x4c/0xa0 [ 77.125795][ T745] ? clear_bhb_loop+0x30/0x80 [ 77.130498][ T745] ? clear_bhb_loop+0x30/0x80 [ 77.135638][ T745] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 77.141754][ T745] RIP: 0033:0x7efcae35ac4e [ 77.146194][ T745] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 77.166512][ T745] RSP: 002b:00007efcae1ddfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 77.175138][ T745] RAX: ffffffffffffffda RBX: 00007efcae1de6c0 RCX: 00007efcae35ac4e [ 77.183394][ T745] RDX: 000000000000000f RSI: 00007efcae1de0a0 RDI: 000000000000000a [ 77.191562][ T745] RBP: 00007efcae1de090 R08: 0000000000000000 R09: 0000000000000000 [ 77.199896][ T745] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 77.208057][ T745] R13: 00007efcae5e6128 R14: 00007efcae5e6090 R15: 00007fff33c16a58 [ 77.216142][ T745] [ 77.219821][ T746] CPU: 1 PID: 746 Comm: syz.6.95 Not tainted syzkaller #0 [ 77.227158][ T746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 77.237359][ T746] Call Trace: [ 77.240671][ T746] [ 77.243661][ T746] __dump_stack+0x21/0x24 [ 77.248278][ T746] dump_stack_lvl+0x110/0x170 [ 77.252985][ T746] ? __cfi_dump_stack_lvl+0x8/0x8 [ 77.258124][ T746] dump_stack+0x15/0x24 [ 77.262319][ T746] should_fail_ex+0x3d4/0x520 [ 77.267205][ T746] should_fail+0xb/0x10 [ 77.271404][ T746] should_fail_usercopy+0x1a/0x20 [ 77.276634][ T746] _copy_to_user+0x1e/0x90 [ 77.281185][ T746] simple_read_from_buffer+0xe9/0x160 [ 77.286689][ T746] proc_fail_nth_read+0x1a6/0x220 [ 77.292093][ T746] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 77.298102][ T746] ? security_file_permission+0x94/0xb0 [ 77.303822][ T746] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 77.309608][ T746] vfs_read+0x27a/0x910 [ 77.313970][ T746] ? __cfi_vfs_read+0x10/0x10 [ 77.318855][ T746] ? __kasan_check_write+0x14/0x20 [ 77.324299][ T746] ? mutex_lock+0x93/0x1b0 [ 77.328935][ T746] ? __cfi_mutex_lock+0x10/0x10 [ 77.334563][ T746] ? __fdget_pos+0x2cd/0x380 [ 77.339560][ T746] ? ksys_read+0x71/0x250 [ 77.344143][ T746] ksys_read+0x149/0x250 [ 77.348449][ T746] ? __cfi_ksys_read+0x10/0x10 [ 77.353790][ T746] ? debug_smp_processor_id+0x17/0x20 [ 77.359284][ T746] __x64_sys_read+0x7b/0x90 [ 77.364068][ T746] x64_sys_call+0x2f/0x9a0 [ 77.368614][ T746] do_syscall_64+0x4c/0xa0 [ 77.373071][ T746] ? clear_bhb_loop+0x30/0x80 [ 77.377805][ T746] ? clear_bhb_loop+0x30/0x80 [ 77.382698][ T746] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 77.388721][ T746] RIP: 0033:0x7f8aac95ac4e [ 77.392968][ T751] FAULT_INJECTION: forcing a failure. [ 77.392968][ T751] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 77.393358][ T746] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 77.427205][ T746] RSP: 002b:00007f8aad7f2fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 77.435657][ T746] RAX: ffffffffffffffda RBX: 00007f8aad7f36c0 RCX: 00007f8aac95ac4e [ 77.444019][ T746] RDX: 000000000000000f RSI: 00007f8aad7f30a0 RDI: 0000000000000008 [ 77.452117][ T746] RBP: 00007f8aad7f3090 R08: 0000000000000000 R09: 0000000000000000 [ 77.460389][ T746] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 77.468847][ T746] R13: 00007f8aacbe6218 R14: 00007f8aacbe6180 R15: 00007ffcb57c4af8 [ 77.477224][ T746] [ 77.480301][ T751] CPU: 0 PID: 751 Comm: syz.2.96 Not tainted syzkaller #0 [ 77.487637][ T751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 77.498409][ T751] Call Trace: [ 77.501888][ T751] [ 77.504935][ T751] __dump_stack+0x21/0x24 [ 77.509365][ T751] dump_stack_lvl+0x110/0x170 [ 77.514423][ T751] ? __cfi_dump_stack_lvl+0x8/0x8 [ 77.519569][ T751] dump_stack+0x15/0x24 [ 77.524007][ T751] should_fail_ex+0x3d4/0x520 [ 77.528825][ T751] should_fail+0xb/0x10 [ 77.533089][ T751] should_fail_usercopy+0x1a/0x20 [ 77.538836][ T751] _copy_to_user+0x1e/0x90 [ 77.543647][ T751] simple_read_from_buffer+0xe9/0x160 [ 77.549220][ T751] proc_fail_nth_read+0x1a6/0x220 [ 77.554302][ T751] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 77.559884][ T751] ? security_file_permission+0x94/0xb0 [ 77.565738][ T751] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 77.571594][ T751] vfs_read+0x27a/0x910 [ 77.575881][ T751] ? __cfi_vfs_read+0x10/0x10 [ 77.580760][ T751] ? __kasan_check_write+0x14/0x20 [ 77.585994][ T751] ? mutex_lock+0x93/0x1b0 [ 77.590437][ T751] ? __cfi_mutex_lock+0x10/0x10 [ 77.595401][ T751] ? __fdget_pos+0x2cd/0x380 [ 77.600105][ T751] ? ksys_read+0x71/0x250 [ 77.604464][ T751] ksys_read+0x149/0x250 [ 77.609280][ T751] ? __cfi_ksys_read+0x10/0x10 [ 77.614163][ T751] ? debug_smp_processor_id+0x17/0x20 [ 77.619731][ T751] __x64_sys_read+0x7b/0x90 [ 77.624432][ T751] x64_sys_call+0x2f/0x9a0 [ 77.628964][ T751] do_syscall_64+0x4c/0xa0 [ 77.633577][ T751] ? clear_bhb_loop+0x30/0x80 [ 77.638555][ T751] ? clear_bhb_loop+0x30/0x80 [ 77.643257][ T751] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 77.649217][ T751] RIP: 0033:0x7fd2db95ac4e [ 77.654017][ T751] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 77.673836][ T751] RSP: 002b:00007fd2dc79ffe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 77.682711][ T751] RAX: ffffffffffffffda RBX: 00007fd2dc7a06c0 RCX: 00007fd2db95ac4e [ 77.690807][ T751] RDX: 000000000000000f RSI: 00007fd2dc7a00a0 RDI: 0000000000000007 [ 77.698977][ T751] RBP: 00007fd2dc7a0090 R08: 0000000000000000 R09: 0000000000000000 [ 77.706978][ T751] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 77.715253][ T751] R13: 00007fd2dbbe6308 R14: 00007fd2dbbe6270 R15: 00007ffcfb1b8b38 [ 77.723636][ T751] [ 77.736719][ T743] CPU: 1 PID: 743 Comm: syz.5.92 Not tainted syzkaller #0 [ 77.744088][ T743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 77.754183][ T743] Call Trace: [ 77.757579][ T743] [ 77.760802][ T743] __dump_stack+0x21/0x24 [ 77.765352][ T743] dump_stack_lvl+0x110/0x170 [ 77.770177][ T743] ? __cfi_dump_stack_lvl+0x8/0x8 [ 77.775664][ T743] dump_stack+0x15/0x24 [ 77.779965][ T743] should_fail_ex+0x3d4/0x520 [ 77.784787][ T743] should_fail+0xb/0x10 [ 77.789072][ T743] should_fail_usercopy+0x1a/0x20 [ 77.794125][ T743] _copy_to_user+0x1e/0x90 [ 77.798763][ T743] simple_read_from_buffer+0xe9/0x160 [ 77.804265][ T743] proc_fail_nth_read+0x1a6/0x220 [ 77.809519][ T743] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 77.815469][ T743] ? security_file_permission+0x94/0xb0 [ 77.821172][ T743] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 77.826849][ T743] vfs_read+0x27a/0x910 [ 77.831219][ T743] ? __cfi_vfs_read+0x10/0x10 [ 77.836116][ T743] ? __kasan_check_write+0x14/0x20 [ 77.841664][ T743] ? mutex_lock+0x93/0x1b0 [ 77.846147][ T743] ? __cfi_mutex_lock+0x10/0x10 [ 77.851070][ T743] ? __fdget_pos+0x2cd/0x380 [ 77.855798][ T743] ? ksys_read+0x71/0x250 [ 77.860166][ T743] ksys_read+0x149/0x250 [ 77.864464][ T743] ? __cfi_ksys_read+0x10/0x10 [ 77.869261][ T743] ? debug_smp_processor_id+0x17/0x20 [ 77.874752][ T743] __x64_sys_read+0x7b/0x90 [ 77.879389][ T743] x64_sys_call+0x2f/0x9a0 [ 77.884061][ T743] do_syscall_64+0x4c/0xa0 [ 77.888518][ T743] ? clear_bhb_loop+0x30/0x80 [ 77.893404][ T743] ? clear_bhb_loop+0x30/0x80 [ 77.898227][ T743] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 77.904173][ T743] RIP: 0033:0x7fe2c675ac4e [ 77.908800][ T743] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 77.929215][ T743] RSP: 002b:00007fe2c76ccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 77.937831][ T743] RAX: ffffffffffffffda RBX: 00007fe2c76cd6c0 RCX: 00007fe2c675ac4e [ 77.946435][ T743] RDX: 000000000000000f RSI: 00007fe2c76cd0a0 RDI: 000000000000000a [ 77.954601][ T743] RBP: 00007fe2c76cd090 R08: 0000000000000000 R09: 0000000000000000 [ 77.963045][ T743] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 77.971122][ T743] R13: 00007fe2c69e6128 R14: 00007fe2c69e6090 R15: 00007fff66458978 [ 77.979656][ T743] [ 78.022261][ T753] FAULT_INJECTION: forcing a failure. [ 78.022261][ T753] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 78.035790][ T753] CPU: 0 PID: 753 Comm: syz.6.97 Not tainted syzkaller #0 [ 78.043676][ T753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 78.054560][ T753] Call Trace: [ 78.057960][ T753] [ 78.061113][ T753] __dump_stack+0x21/0x24 [ 78.065523][ T753] dump_stack_lvl+0x110/0x170 [ 78.070329][ T753] ? __cfi_dump_stack_lvl+0x8/0x8 [ 78.075565][ T753] dump_stack+0x15/0x24 [ 78.079750][ T753] should_fail_ex+0x3d4/0x520 [ 78.084446][ T753] should_fail+0xb/0x10 [ 78.088713][ T753] should_fail_usercopy+0x1a/0x20 [ 78.094020][ T753] _copy_to_user+0x1e/0x90 [ 78.098855][ T753] simple_read_from_buffer+0xe9/0x160 [ 78.104367][ T753] proc_fail_nth_read+0x1a6/0x220 [ 78.109630][ T753] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 78.115474][ T753] ? security_file_permission+0x94/0xb0 [ 78.121131][ T753] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 78.126869][ T753] vfs_read+0x27a/0x910 [ 78.131315][ T753] ? __cfi_vfs_read+0x10/0x10 [ 78.136013][ T753] ? __kasan_check_write+0x14/0x20 [ 78.141350][ T753] ? mutex_lock+0x93/0x1b0 [ 78.145796][ T753] ? __cfi_mutex_lock+0x10/0x10 [ 78.150682][ T753] ? __fdget_pos+0x2cd/0x380 [ 78.155468][ T753] ? ksys_read+0x71/0x250 [ 78.159815][ T753] ksys_read+0x149/0x250 [ 78.164183][ T753] ? __cfi_ksys_read+0x10/0x10 [ 78.169093][ T753] ? fput+0x15b/0x1a0 [ 78.173096][ T753] ? debug_smp_processor_id+0x17/0x20 [ 78.178572][ T753] __x64_sys_read+0x7b/0x90 [ 78.183111][ T753] x64_sys_call+0x2f/0x9a0 [ 78.187721][ T753] do_syscall_64+0x4c/0xa0 [ 78.192643][ T753] ? clear_bhb_loop+0x30/0x80 [ 78.197617][ T753] ? clear_bhb_loop+0x30/0x80 [ 78.202326][ T753] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 78.208248][ T753] RIP: 0033:0x7f8aac95ac4e [ 78.212862][ T753] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 78.233096][ T753] RSP: 002b:00007f8aad834fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 78.241621][ T753] RAX: ffffffffffffffda RBX: 00007f8aad8356c0 RCX: 00007f8aac95ac4e [ 78.249618][ T753] RDX: 000000000000000f RSI: 00007f8aad8350a0 RDI: 000000000000000a [ 78.257874][ T753] RBP: 00007f8aad835090 R08: 0000000000000000 R09: 0000000000000000 [ 78.266223][ T753] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 78.274426][ T753] R13: 00007f8aacbe6038 R14: 00007f8aacbe5fa0 R15: 00007ffcb57c4af8 [ 78.282614][ T753] [ 78.289797][ T757] FAULT_INJECTION: forcing a failure. [ 78.289797][ T757] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 78.326424][ T758] FAULT_INJECTION: forcing a failure. [ 78.326424][ T758] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 78.328894][ T757] CPU: 0 PID: 757 Comm: syz.2.100 Not tainted syzkaller #0 [ 78.348514][ T757] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 78.358872][ T757] Call Trace: [ 78.362371][ T757] [ 78.365419][ T757] __dump_stack+0x21/0x24 [ 78.369955][ T757] dump_stack_lvl+0x110/0x170 [ 78.374827][ T757] ? __cfi_dump_stack_lvl+0x8/0x8 [ 78.380220][ T757] dump_stack+0x15/0x24 [ 78.384574][ T757] should_fail_ex+0x3d4/0x520 [ 78.389353][ T757] should_fail+0xb/0x10 [ 78.393619][ T757] should_fail_usercopy+0x1a/0x20 [ 78.399036][ T757] _copy_to_user+0x1e/0x90 [ 78.403588][ T757] simple_read_from_buffer+0xe9/0x160 [ 78.409011][ T757] proc_fail_nth_read+0x1a6/0x220 [ 78.414250][ T757] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 78.420119][ T757] ? security_file_permission+0x94/0xb0 [ 78.425711][ T757] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 78.431386][ T757] vfs_read+0x27a/0x910 [ 78.435578][ T757] ? __cfi_vfs_read+0x10/0x10 [ 78.440364][ T757] ? __kasan_check_write+0x14/0x20 [ 78.445595][ T757] ? mutex_lock+0x93/0x1b0 [ 78.450138][ T757] ? __cfi_mutex_lock+0x10/0x10 [ 78.455604][ T757] ? __fdget_pos+0x2cd/0x380 [ 78.460734][ T757] ? ksys_read+0x71/0x250 [ 78.465092][ T757] ksys_read+0x149/0x250 [ 78.469623][ T757] ? __cfi_ksys_read+0x10/0x10 [ 78.474610][ T757] ? fput+0x15b/0x1a0 [ 78.478734][ T757] ? debug_smp_processor_id+0x17/0x20 [ 78.484317][ T757] __x64_sys_read+0x7b/0x90 [ 78.489206][ T757] x64_sys_call+0x2f/0x9a0 [ 78.493743][ T757] do_syscall_64+0x4c/0xa0 [ 78.498335][ T757] ? clear_bhb_loop+0x30/0x80 [ 78.503127][ T757] ? clear_bhb_loop+0x30/0x80 [ 78.507833][ T757] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 78.513929][ T757] RIP: 0033:0x7fd2db95ac4e [ 78.518371][ T757] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 78.538689][ T757] RSP: 002b:00007fd2dc802fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 78.547486][ T757] RAX: ffffffffffffffda RBX: 00007fd2dc8036c0 RCX: 00007fd2db95ac4e [ 78.555755][ T757] RDX: 000000000000000f RSI: 00007fd2dc8030a0 RDI: 000000000000000a [ 78.563837][ T757] RBP: 00007fd2dc803090 R08: 0000000000000000 R09: 0000000000000000 [ 78.572094][ T757] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 78.580706][ T757] R13: 00007fd2dbbe6038 R14: 00007fd2dbbe5fa0 R15: 00007ffcfb1b8b38 [ 78.589258][ T757] [ 78.593118][ T758] CPU: 0 PID: 758 Comm: syz.0.98 Not tainted syzkaller #0 [ 78.595659][ T767] FAULT_INJECTION: forcing a failure. [ 78.595659][ T767] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 78.600501][ T758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 78.624649][ T758] Call Trace: [ 78.628568][ T758] [ 78.631865][ T758] __dump_stack+0x21/0x24 [ 78.636429][ T758] dump_stack_lvl+0x110/0x170 [ 78.641150][ T758] ? __cfi_dump_stack_lvl+0x8/0x8 [ 78.646589][ T758] dump_stack+0x15/0x24 [ 78.650784][ T758] should_fail_ex+0x3d4/0x520 [ 78.655580][ T758] should_fail+0xb/0x10 [ 78.659768][ T758] should_fail_usercopy+0x1a/0x20 [ 78.665019][ T758] _copy_to_user+0x1e/0x90 [ 78.669513][ T758] simple_read_from_buffer+0xe9/0x160 [ 78.675007][ T758] proc_fail_nth_read+0x1a6/0x220 [ 78.680415][ T758] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 78.686069][ T758] ? vfs_read+0x256/0x910 [ 78.690423][ T758] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 78.696167][ T758] vfs_read+0x27a/0x910 [ 78.700351][ T758] ? __cfi_vfs_read+0x10/0x10 [ 78.705048][ T758] ? __kasan_check_write+0x14/0x20 [ 78.710190][ T758] ? mutex_lock+0x93/0x1b0 [ 78.714655][ T758] ? __cfi_mutex_lock+0x10/0x10 [ 78.719873][ T758] ? __fdget_pos+0x2cd/0x380 [ 78.724493][ T758] ? ksys_read+0x71/0x250 [ 78.728858][ T758] ksys_read+0x149/0x250 [ 78.733227][ T758] ? __cfi_ksys_read+0x10/0x10 [ 78.738507][ T758] ? debug_smp_processor_id+0x17/0x20 [ 78.744726][ T758] __x64_sys_read+0x7b/0x90 [ 78.749359][ T758] x64_sys_call+0x2f/0x9a0 [ 78.753899][ T758] do_syscall_64+0x4c/0xa0 [ 78.758341][ T758] ? clear_bhb_loop+0x30/0x80 [ 78.763154][ T758] ? clear_bhb_loop+0x30/0x80 [ 78.767951][ T758] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 78.773979][ T758] RIP: 0033:0x7efcae35ac4e [ 78.778593][ T758] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 78.798582][ T758] RSP: 002b:00007efcae1fefe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 78.807116][ T758] RAX: ffffffffffffffda RBX: 00007efcae1ff6c0 RCX: 00007efcae35ac4e [ 78.815136][ T758] RDX: 000000000000000f RSI: 00007efcae1ff0a0 RDI: 000000000000000a [ 78.823399][ T758] RBP: 00007efcae1ff090 R08: 0000000000000000 R09: 0000000000000000 [ 78.831569][ T758] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 78.839825][ T758] R13: 00007efcae5e6038 R14: 00007efcae5e5fa0 R15: 00007fff33c16a58 [ 78.847915][ T758] [ 78.851015][ T767] CPU: 1 PID: 767 Comm: syz.1.99 Not tainted syzkaller #0 [ 78.858305][ T767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 78.868575][ T767] Call Trace: [ 78.872072][ T767] [ 78.875134][ T767] __dump_stack+0x21/0x24 [ 78.875638][ T764] FAULT_INJECTION: forcing a failure. [ 78.875638][ T764] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 78.879846][ T767] dump_stack_lvl+0x110/0x170 [ 78.879879][ T767] ? __cfi_dump_stack_lvl+0x8/0x8 [ 78.903167][ T767] dump_stack+0x15/0x24 [ 78.907550][ T767] should_fail_ex+0x3d4/0x520 [ 78.912280][ T767] should_fail+0xb/0x10 [ 78.916475][ T767] should_fail_usercopy+0x1a/0x20 [ 78.921790][ T767] _copy_to_user+0x1e/0x90 [ 78.926451][ T767] simple_read_from_buffer+0xe9/0x160 [ 78.932212][ T767] proc_fail_nth_read+0x1a6/0x220 [ 78.937390][ T767] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 78.943082][ T767] ? security_file_permission+0x94/0xb0 [ 78.948853][ T767] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 78.954631][ T767] vfs_read+0x27a/0x910 [ 78.959036][ T767] ? __cfi_vfs_read+0x10/0x10 [ 78.963915][ T767] ? __kasan_check_write+0x14/0x20 [ 78.964964][ T771] FAULT_INJECTION: forcing a failure. [ 78.964964][ T771] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 78.969616][ T767] ? mutex_lock+0x93/0x1b0 [ 78.969657][ T767] ? __cfi_mutex_lock+0x10/0x10 [ 78.993034][ T767] ? __fdget_pos+0x2cd/0x380 [ 78.997746][ T767] ? ksys_read+0x71/0x250 [ 79.002202][ T767] ksys_read+0x149/0x250 [ 79.006770][ T767] ? __cfi_ksys_read+0x10/0x10 [ 79.011824][ T767] ? debug_smp_processor_id+0x17/0x20 [ 79.017410][ T767] __x64_sys_read+0x7b/0x90 [ 79.022307][ T767] x64_sys_call+0x2f/0x9a0 [ 79.026777][ T767] do_syscall_64+0x4c/0xa0 [ 79.031232][ T767] ? clear_bhb_loop+0x30/0x80 [ 79.036300][ T767] ? clear_bhb_loop+0x30/0x80 [ 79.041178][ T767] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 79.047211][ T767] RIP: 0033:0x7f25fd95ac4e [ 79.052122][ T767] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 79.072566][ T767] RSP: 002b:00007f25fe851fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 79.081192][ T767] RAX: ffffffffffffffda RBX: 00007f25fe8526c0 RCX: 00007f25fd95ac4e [ 79.089369][ T767] RDX: 000000000000000f RSI: 00007f25fe8520a0 RDI: 000000000000000a [ 79.097708][ T767] RBP: 00007f25fe852090 R08: 0000000000000000 R09: 0000000000000000 [ 79.106488][ T767] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 79.115011][ T767] R13: 00007f25fdbe6128 R14: 00007f25fdbe6090 R15: 00007ffced4f41c8 [ 79.123649][ T767] [ 79.127553][ T771] CPU: 0 PID: 771 Comm: syz.6.102 Not tainted syzkaller #0 [ 79.135183][ T771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 79.146236][ T771] Call Trace: [ 79.149654][ T771] [ 79.152628][ T771] __dump_stack+0x21/0x24 [ 79.157285][ T771] dump_stack_lvl+0x110/0x170 [ 79.162080][ T771] ? __cfi_dump_stack_lvl+0x8/0x8 [ 79.167314][ T771] dump_stack+0x15/0x24 [ 79.171531][ T771] should_fail_ex+0x3d4/0x520 [ 79.176261][ T771] should_fail+0xb/0x10 [ 79.180464][ T771] should_fail_usercopy+0x1a/0x20 [ 79.185780][ T771] _copy_to_user+0x1e/0x90 [ 79.190231][ T771] simple_read_from_buffer+0xe9/0x160 [ 79.195921][ T771] proc_fail_nth_read+0x1a6/0x220 [ 79.201161][ T771] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 79.207101][ T771] ? security_file_permission+0x94/0xb0 [ 79.212867][ T771] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 79.218539][ T771] vfs_read+0x27a/0x910 [ 79.222826][ T771] ? __cfi_vfs_read+0x10/0x10 [ 79.227644][ T771] ? __kasan_check_write+0x14/0x20 [ 79.232876][ T771] ? mutex_lock+0x93/0x1b0 [ 79.237495][ T771] ? __cfi_mutex_lock+0x10/0x10 [ 79.242606][ T771] ? __fdget_pos+0x2cd/0x380 [ 79.247393][ T771] ? ksys_read+0x71/0x250 [ 79.251859][ T771] ksys_read+0x149/0x250 [ 79.256296][ T771] ? __cfi_ksys_read+0x10/0x10 [ 79.261255][ T771] ? debug_smp_processor_id+0x17/0x20 [ 79.266752][ T771] __x64_sys_read+0x7b/0x90 [ 79.271375][ T771] x64_sys_call+0x2f/0x9a0 [ 79.275821][ T771] do_syscall_64+0x4c/0xa0 [ 79.280266][ T771] ? clear_bhb_loop+0x30/0x80 [ 79.285083][ T771] ? clear_bhb_loop+0x30/0x80 [ 79.289801][ T771] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 79.295811][ T771] RIP: 0033:0x7f8aac95ac4e [ 79.300606][ T771] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 79.320507][ T771] RSP: 002b:00007f8aad7f2fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 79.329216][ T771] RAX: ffffffffffffffda RBX: 00007f8aad7f36c0 RCX: 00007f8aac95ac4e [ 79.337329][ T771] RDX: 000000000000000f RSI: 00007f8aad7f30a0 RDI: 0000000000000008 [ 79.345506][ T771] RBP: 00007f8aad7f3090 R08: 0000000000000000 R09: 0000000000000000 [ 79.353784][ T771] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 79.362308][ T771] R13: 00007f8aacbe6218 R14: 00007f8aacbe6180 R15: 00007ffcb57c4af8 [ 79.370494][ T771] [ 79.374591][ T764] CPU: 0 PID: 764 Comm: syz.5.101 Not tainted syzkaller #0 [ 79.381931][ T764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 79.392205][ T764] Call Trace: [ 79.395607][ T764] [ 79.399021][ T764] __dump_stack+0x21/0x24 [ 79.403398][ T764] dump_stack_lvl+0x110/0x170 [ 79.408291][ T764] ? __cfi_dump_stack_lvl+0x8/0x8 [ 79.413635][ T764] dump_stack+0x15/0x24 [ 79.418002][ T764] should_fail_ex+0x3d4/0x520 [ 79.422841][ T764] should_fail+0xb/0x10 [ 79.427146][ T764] should_fail_usercopy+0x1a/0x20 [ 79.432218][ T764] _copy_to_user+0x1e/0x90 [ 79.436669][ T764] simple_read_from_buffer+0xe9/0x160 [ 79.442359][ T764] proc_fail_nth_read+0x1a6/0x220 [ 79.447495][ T764] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 79.453187][ T764] ? security_file_permission+0x94/0xb0 [ 79.458973][ T764] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 79.464549][ T764] vfs_read+0x27a/0x910 [ 79.468819][ T764] ? __cfi_vfs_read+0x10/0x10 [ 79.473754][ T764] ? __kasan_check_write+0x14/0x20 [ 79.479091][ T764] ? mutex_lock+0x93/0x1b0 [ 79.483554][ T764] ? __cfi_mutex_lock+0x10/0x10 [ 79.488524][ T764] ? __fdget_pos+0x2cd/0x380 [ 79.493306][ T764] ? ksys_read+0x71/0x250 [ 79.497839][ T764] ksys_read+0x149/0x250 [ 79.502216][ T764] ? __cfi_ksys_read+0x10/0x10 [ 79.507002][ T764] ? debug_smp_processor_id+0x17/0x20 [ 79.512396][ T764] __x64_sys_read+0x7b/0x90 [ 79.517020][ T764] x64_sys_call+0x2f/0x9a0 [ 79.521559][ T764] do_syscall_64+0x4c/0xa0 [ 79.526170][ T764] ? clear_bhb_loop+0x30/0x80 [ 79.530955][ T764] ? clear_bhb_loop+0x30/0x80 [ 79.535845][ T764] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 79.541953][ T764] RIP: 0033:0x7fe2c675ac4e [ 79.546753][ T764] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 79.567525][ T764] RSP: 002b:00007fe2c76ccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 79.576663][ T764] RAX: ffffffffffffffda RBX: 00007fe2c76cd6c0 RCX: 00007fe2c675ac4e [ 79.584756][ T764] RDX: 000000000000000f RSI: 00007fe2c76cd0a0 RDI: 000000000000000a [ 79.593119][ T764] RBP: 00007fe2c76cd090 R08: 0000000000000000 R09: 0000000000000000 [ 79.601221][ T764] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 79.609683][ T764] R13: 00007fe2c69e6128 R14: 00007fe2c69e6090 R15: 00007fff66458978 [ 79.618035][ T764] [ 79.626928][ T777] FAULT_INJECTION: forcing a failure. [ 79.626928][ T777] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 79.642815][ T777] CPU: 1 PID: 777 Comm: syz.2.104 Not tainted syzkaller #0 [ 79.650475][ T777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 79.660964][ T777] Call Trace: [ 79.664384][ T777] [ 79.667436][ T777] __dump_stack+0x21/0x24 [ 79.672053][ T777] dump_stack_lvl+0x110/0x170 [ 79.676856][ T777] ? __cfi_dump_stack_lvl+0x8/0x8 [ 79.682007][ T777] dump_stack+0x15/0x24 [ 79.686268][ T777] should_fail_ex+0x3d4/0x520 [ 79.690997][ T777] should_fail+0xb/0x10 [ 79.695369][ T777] should_fail_usercopy+0x1a/0x20 [ 79.700517][ T777] _copy_to_user+0x1e/0x90 [ 79.704965][ T777] simple_read_from_buffer+0xe9/0x160 [ 79.710369][ T777] proc_fail_nth_read+0x1a6/0x220 [ 79.715683][ T777] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 79.721476][ T777] ? security_file_permission+0x94/0xb0 [ 79.727223][ T777] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 79.732962][ T777] vfs_read+0x27a/0x910 [ 79.737238][ T777] ? __cfi_vfs_read+0x10/0x10 [ 79.742019][ T777] ? __kasan_check_write+0x14/0x20 [ 79.747241][ T777] ? mutex_lock+0x93/0x1b0 [ 79.751869][ T777] ? __cfi_mutex_lock+0x10/0x10 [ 79.756753][ T777] ? __fdget_pos+0x2cd/0x380 [ 79.761371][ T777] ? ksys_read+0x71/0x250 [ 79.765982][ T777] ksys_read+0x149/0x250 [ 79.770676][ T777] ? __cfi_ksys_read+0x10/0x10 [ 79.775456][ T777] ? debug_smp_processor_id+0x17/0x20 [ 79.780930][ T777] __x64_sys_read+0x7b/0x90 [ 79.785709][ T777] x64_sys_call+0x2f/0x9a0 [ 79.790250][ T777] do_syscall_64+0x4c/0xa0 [ 79.794710][ T777] ? clear_bhb_loop+0x30/0x80 [ 79.799907][ T777] ? clear_bhb_loop+0x30/0x80 [ 79.804702][ T777] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 79.810704][ T777] RIP: 0033:0x7fd2db95ac4e [ 79.815137][ T777] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 79.834937][ T777] RSP: 002b:00007fd2dc7c0fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 79.843377][ T777] RAX: ffffffffffffffda RBX: 00007fd2dc7c16c0 RCX: 00007fd2db95ac4e [ 79.851372][ T777] RDX: 000000000000000f RSI: 00007fd2dc7c10a0 RDI: 0000000000000007 [ 79.859366][ T777] RBP: 00007fd2dc7c1090 R08: 0000000000000000 R09: 0000000000000000 [ 79.867356][ T777] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 79.875435][ T777] R13: 00007fd2dbbe6218 R14: 00007fd2dbbe6180 R15: 00007ffcfb1b8b38 [ 79.883961][ T777] [ 79.910452][ T773] FAULT_INJECTION: forcing a failure. [ 79.910452][ T773] name failslab, interval 1, probability 0, space 0, times 0 [ 79.924967][ T773] CPU: 1 PID: 773 Comm: syz.0.103 Not tainted syzkaller #0 [ 79.932412][ T773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 79.942677][ T773] Call Trace: [ 79.946120][ T773] [ 79.949177][ T773] __dump_stack+0x21/0x24 [ 79.953754][ T773] dump_stack_lvl+0x110/0x170 [ 79.958601][ T773] ? __cfi_dump_stack_lvl+0x8/0x8 [ 79.963848][ T773] ? unwind_get_return_address+0x4d/0x90 [ 79.969568][ T773] ? __cfi_stack_trace_consume_entry+0x10/0x10 [ 79.975953][ T773] dump_stack+0x15/0x24 [ 79.980168][ T773] should_fail_ex+0x3d4/0x520 [ 79.985082][ T773] __should_failslab+0xac/0xf0 [ 79.990066][ T773] ? tracepoint_probe_unregister+0x211/0x8e0 [ 79.996254][ T773] should_failslab+0x9/0x20 [ 80.001030][ T773] __kmem_cache_alloc_node+0x3d/0x2c0 [ 80.006963][ T773] ? __cfi_mutex_lock+0x10/0x10 [ 80.011959][ T773] ? delete_node+0x2f4/0xa60 [ 80.016683][ T773] ? tracepoint_probe_unregister+0x211/0x8e0 [ 80.022888][ T773] __kmalloc+0xa1/0x1e0 [ 80.027168][ T773] ? __cfi___bpf_trace_neigh_update+0x10/0x10 [ 80.033543][ T773] tracepoint_probe_unregister+0x211/0x8e0 [ 80.039483][ T773] bpf_probe_unregister+0x61/0x70 [ 80.044645][ T773] bpf_raw_tp_link_release+0x63/0x90 [ 80.050156][ T773] bpf_link_free+0x13a/0x3a0 [ 80.054938][ T773] ? bpf_link_put_deferred+0x20/0x20 [ 80.060388][ T773] bpf_link_release+0x15f/0x170 [ 80.065247][ T773] ? __cfi_bpf_link_release+0x10/0x10 [ 80.070628][ T773] __fput+0x1fc/0x8f0 [ 80.074797][ T773] ____fput+0x15/0x20 [ 80.078880][ T773] task_work_run+0x1e1/0x250 [ 80.083501][ T773] ? __cfi_task_work_run+0x10/0x10 [ 80.088814][ T773] ? fput+0x15b/0x1a0 [ 80.092843][ T773] exit_to_user_mode_loop+0x9b/0xb0 [ 80.098516][ T773] exit_to_user_mode_prepare+0x87/0xd0 [ 80.104172][ T773] syscall_exit_to_user_mode+0x1a/0x30 [ 80.109656][ T773] do_syscall_64+0x58/0xa0 [ 80.114105][ T773] ? clear_bhb_loop+0x30/0x80 [ 80.118922][ T773] ? clear_bhb_loop+0x30/0x80 [ 80.123629][ T773] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 80.129646][ T773] RIP: 0033:0x7efcae39a379 [ 80.134142][ T773] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 [ 80.154291][ T773] RSP: 002b:00007efcae1ff028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 80.163055][ T773] RAX: 0000000000000000 RBX: 00007efcae5e5fa0 RCX: 00007efcae39a379 [ 80.171229][ T773] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009 [ 80.179415][ T773] RBP: 00007efcae1ff090 R08: 0000000000000000 R09: 0000000000000000 [ 80.187962][ T773] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 80.196245][ T773] R13: 00007efcae5e6038 R14: 00007efcae5e5fa0 R15: 00007fff33c16a58 [ 80.205495][ T773] [ 80.230730][ T780] FAULT_INJECTION: forcing a failure. [ 80.230730][ T780] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 80.247572][ T780] CPU: 0 PID: 780 Comm: syz.6.107 Not tainted syzkaller #0 [ 80.255132][ T780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 80.265501][ T780] Call Trace: [ 80.268827][ T780] [ 80.271807][ T780] __dump_stack+0x21/0x24 [ 80.276187][ T780] dump_stack_lvl+0x110/0x170 [ 80.281040][ T780] ? __cfi_dump_stack_lvl+0x8/0x8 [ 80.286206][ T780] dump_stack+0x15/0x24 [ 80.290784][ T780] should_fail_ex+0x3d4/0x520 [ 80.295515][ T780] should_fail+0xb/0x10 [ 80.300157][ T780] should_fail_usercopy+0x1a/0x20 [ 80.305315][ T780] _copy_to_user+0x1e/0x90 [ 80.309973][ T780] simple_read_from_buffer+0xe9/0x160 [ 80.315568][ T780] proc_fail_nth_read+0x1a6/0x220 [ 80.320724][ T780] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 80.326402][ T780] ? security_file_permission+0x94/0xb0 [ 80.332008][ T780] ? __cfi_proc_fail_nth_read+0x10/0x10 [ 80.337692][ T780] vfs_read+0x27a/0x910 [ 80.341974][ T780] ? __cfi_vfs_read+0x10/0x10 [ 80.346758][ T780] ? __kasan_check_write+0x14/0x20 [ 80.352115][ T780] ? mutex_lock+0x93/0x1b0 [ 80.356570][ T780] ? __cfi_mutex_lock+0x10/0x10 [ 80.361704][ T780] ? __fdget_pos+0x2cd/0x380 [ 80.366468][ T780] ? ksys_read+0x71/0x250 [ 80.370919][ T780] ksys_read+0x149/0x250 [ 80.375357][ T780] ? __cfi_ksys_read+0x10/0x10 [ 80.380679][ T780] ? fput+0x15b/0x1a0 [ 80.384800][ T780] ? debug_smp_processor_id+0x17/0x20 [ 80.390420][ T780] __x64_sys_read+0x7b/0x90 [ 80.394967][ T780] x64_sys_call+0x2f/0x9a0 [ 80.399506][ T780] do_syscall_64+0x4c/0xa0 [ 80.404131][ T780] ? clear_bhb_loop+0x30/0x80 [ 80.408931][ T780] ? clear_bhb_loop+0x30/0x80 [ 80.413730][ T780] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 80.419954][ T780] RIP: 0033:0x7f8aac95ac4e [ 80.424502][ T780] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 80.444584][ T780] RSP: 002b:00007f8aad834fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 80.453292][ T780] RAX: ffffffffffffffda RBX: 00007f8aad8356c0 RCX: 00007f8aac95ac4e [ 80.461819][ T780] RDX: 000000000000000f RSI: 00007f8aad8350a0 RDI: 000000000000000a [ 80.470170][ T780] RBP: 00007f8aad835090 R08: 0000000000000000 R09: 0000000000000000 2026/05/12 05:42:52 executed programs: 101 [ 80.478781][ T780] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 80.486878][ T780] R13: 00007f8aacbe6038 R14: 00007f8aacbe5fa0 R15: 00007ffcb57c4af8 [ 80.495142][ T780] [ 80.518127][ T783] FAULT_INJECTION: forcing a failure. [ 80.518127][ T783] name failslab, interval 1, probability 0, space 0, times 0 [ 80.531461][ T783] CPU: 1 PID: 783 Comm: syz.5.106 Not tainted syzkaller #0 [ 80.538717][ T783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 80.549076][ T783] Call Trace: [ 80.552649][ T783] [ 80.555605][ T783] __dump_stack+0x21/0x24 [ 80.560414][ T783] dump_stack_lvl+0x110/0x170 [ 80.565118][ T783] ? __cfi_dump_stack_lvl+0x8/0x8 [ 80.570334][ T783] ? unwind_get_return_address+0x4d/0x90 [ 80.577311][ T783] ? __cfi_stack_trace_consume_entry+0x10/0x10 [ 80.583768][ T783] dump_stack+0x15/0x24 [ 80.588401][ T783] should_fail_ex+0x3d4/0x520 [ 80.593583][ T783] __should_failslab+0xac/0xf0 [ 80.598481][ T783] ? tracepoint_probe_unregister+0x211/0x8e0 [ 80.604665][ T783] should_failslab+0x9/0x20 [ 80.609281][ T783] __kmem_cache_alloc_node+0x3d/0x2c0 [ 80.614780][ T783] ? __cfi___bpf_trace_neigh_update+0x10/0x10 [ 80.620956][ T783] ? __cfi___bpf_trace_neigh_update+0x10/0x10 [ 80.627219][ T783] ? tracepoint_probe_unregister+0x211/0x8e0 [ 80.633402][ T783] __kmalloc+0xa1/0x1e0 [ 80.637582][ T783] ? __cfi___bpf_trace_neigh_update+0x10/0x10 [ 80.643911][ T783] tracepoint_probe_unregister+0x211/0x8e0 [ 80.650028][ T783] bpf_probe_unregister+0x61/0x70 [ 80.655100][ T783] bpf_raw_tp_link_release+0x63/0x90 [ 80.660422][ T783] bpf_link_free+0x13a/0x3a0 [ 80.665045][ T783] ? irqentry_exit+0x37/0x40 [ 80.669840][ T783] ? sysvec_apic_timer_interrupt+0x64/0xc0 [ 80.676116][ T783] ? bpf_link_put_deferred+0x20/0x20 [ 80.681864][ T783] bpf_link_release+0x15f/0x170 [ 80.687345][ T783] ? __cfi_bpf_link_release+0x10/0x10 [ 80.693097][ T783] __fput+0x1fc/0x8f0 [ 80.697121][ T783] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 80.703312][ T783] ____fput+0x15/0x20 [ 80.707322][ T783] task_work_run+0x1e1/0x250 [ 80.711946][ T783] ? __cfi_task_work_run+0x10/0x10 [ 80.717252][ T783] ? fput+0x15b/0x1a0 [ 80.721296][ T783] exit_to_user_mode_loop+0x9b/0xb0 [ 80.726695][ T783] exit_to_user_mode_prepare+0x87/0xd0 [ 80.732358][ T783] syscall_exit_to_user_mode+0x1a/0x30 [ 80.738547][ T783] do_syscall_64+0x58/0xa0 [ 80.743003][ T783] ? clear_bhb_loop+0x30/0x80 [ 80.747798][ T783] ? clear_bhb_loop+0x30/0x80 [ 80.752731][ T783] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 80.758665][ T783] RIP: 0033:0x7fe2c679a379 [ 80.763100][ T783] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 [ 80.782952][ T783] RSP: 002b:00007fe2c76ee028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 80.791662][ T783] RAX: 0000000000000000 RBX: 00007fe2c69e5fa0 RCX: 00007fe2c679a379 [ 80.800104][ T783] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008 [ 80.808280][ T783] RBP: 00007fe2c76ee090 R08: 0000000000000000 R09: 0000000000000000 [ 80.816635][ T783] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 80.824989][ T783] R13: 00007fe2c69e6038 R14: 00007fe2c69e5fa0 R15: 00007fff66458978 [ 80.833642][ T783] [ 80.852453][ T786] FAULT_INJECTION: forcing a failure. [ 80.852453][ T786] name failslab, interval 1, probability 0, space 0, times 0 [ 80.866012][ T786] CPU: 0 PID: 786 Comm: syz.1.108 Not tainted syzkaller #0 [ 80.873260][ T786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 80.883791][ T786] Call Trace: [ 80.887209][ T786] [ 80.890266][ T786] __dump_stack+0x21/0x24 [ 80.894721][ T786] dump_stack_lvl+0x110/0x170 [ 80.899432][ T786] ? __cfi_dump_stack_lvl+0x8/0x8 [ 80.904671][ T786] ? unwind_get_return_address+0x4d/0x90 [ 80.910515][ T786] ? __cfi_stack_trace_consume_entry+0x10/0x10 [ 80.916711][ T786] dump_stack+0x15/0x24 [ 80.920897][ T786] should_fail_ex+0x3d4/0x520 [ 80.925602][ T786] __should_failslab+0xac/0xf0 [ 80.930414][ T786] ? tracepoint_probe_unregister+0x211/0x8e0 [ 80.936533][ T786] should_failslab+0x9/0x20 [ 80.941226][ T786] __kmem_cache_alloc_node+0x3d/0x2c0 [ 80.946744][ T786] ? __cfi_mutex_lock+0x10/0x10 [ 80.951649][ T786] ? delete_node+0x2f4/0xa60 [ 80.956478][ T786] ? tracepoint_probe_unregister+0x211/0x8e0 [ 80.962937][ T786] __kmalloc+0xa1/0x1e0 [ 80.967394][ T786] ? __cfi___bpf_trace_neigh_update+0x10/0x10 [ 80.973705][ T786] tracepoint_probe_unregister+0x211/0x8e0 [ 80.979543][ T786] bpf_probe_unregister+0x61/0x70 [ 80.984798][ T786] bpf_raw_tp_link_release+0x63/0x90 [ 80.990333][ T786] bpf_link_free+0x13a/0x3a0 [ 80.994956][ T786] ? bpf_link_put_deferred+0x20/0x20 [ 81.000357][ T786] ? irqentry_exit+0x37/0x40 [ 81.005337][ T786] bpf_link_release+0x15f/0x170 [ 81.010476][ T786] ? __cfi_bpf_link_release+0x10/0x10 [ 81.016056][ T786] __fput+0x1fc/0x8f0 [ 81.020250][ T786] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 81.027038][ T786] ____fput+0x15/0x20 [ 81.031212][ T786] task_work_run+0x1e1/0x250 [ 81.035833][ T786] ? __cfi_task_work_run+0x10/0x10 [ 81.041242][ T786] ? fput+0x15b/0x1a0 [ 81.045439][ T786] exit_to_user_mode_loop+0x9b/0xb0 [ 81.050683][ T786] exit_to_user_mode_prepare+0x87/0xd0 [ 81.056445][ T786] syscall_exit_to_user_mode+0x1a/0x30 [ 81.062033][ T786] do_syscall_64+0x58/0xa0 [ 81.066653][ T786] ? clear_bhb_loop+0x30/0x80 [ 81.071467][ T786] ? clear_bhb_loop+0x30/0x80 [ 81.076623][ T786] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 81.082587][ T786] RIP: 0033:0x7f25fd99a379 [ 81.087109][ T786] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 [ 81.107183][ T786] RSP: 002b:00007f25fe873028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 81.115975][ T786] RAX: 0000000000000000 RBX: 00007f25fdbe5fa0 RCX: 00007f25fd99a379 [ 81.124927][ T786] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009 [ 81.132916][ T786] RBP: 00007f25fe873090 R08: 0000000000000000 R09: 0000000000000000 [ 81.140999][ T786] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 81.149102][ T786] R13: 00007f25fdbe6038 R14: 00007f25fdbe5fa0 R15: 00007ffced4f41c8 [ 81.157131][ T786] [ 81.164936][ C0] CFI failure at __traceiter_neigh_update+0x9d/0xf0 (target: 0xffffc900000074d0; expected type: 0xcdd4cfdd) [ 81.176780][ C0] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 81.182975][ C0] CPU: 0 PID: 786 Comm: syz.1.108 Not tainted syzkaller #0 [ 81.190387][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 81.200651][ C0] RIP: 0010:__traceiter_neigh_update+0x9d/0xf0 [ 81.206946][ C0] Code: 05 e8 77 41 b1 fd 49 8b 7e 08 48 8b 75 c8 48 8b 55 c0 44 89 e9 44 8b 45 d4 44 8b 4d d0 41 ba 23 30 2b 32 45 03 54 24 fc 74 02 <0f> 0b 41 ff d4 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 [ 81.227018][ C0] RSP: 0018:ffffc900000074d0 EFLAGS: 00010282 [ 81.233106][ C0] RAX: 1ffff110211f45e9 RBX: ffff888108fa2f40 RCX: 0000000000000004 [ 81.241101][ C0] RDX: ffff888130dafc56 RSI: ffff888120284000 RDI: ffffc90003f63000 [ 81.249350][ C0] RBP: ffffc90000007510 R08: 0000000000000001 R09: 0000000000000000 [ 81.257603][ C0] R10: 00000000d76b972f R11: 0000000000000100 R12: ffffffff817296b0 [ 81.265776][ C0] R13: 0000000000000004 R14: ffff888108fa2f40 R15: dffffc0000000000 [ 81.274129][ C0] FS: 00007f25fe8736c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 81.283094][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.289989][ C0] CR2: 0000000000000031 CR3: 000000012cea9000 CR4: 00000000003506b0 [ 81.298320][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 81.306671][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 81.315219][ C0] Call Trace: [ 81.318690][ C0] [ 81.321553][ C0] __neigh_update+0x1f48/0x2080 [ 81.326435][ C0] ? neigh_lookup+0x354/0x410 [ 81.331225][ C0] ? __cfi_arp_key_eq+0x10/0x10 [ 81.336294][ C0] ? __cfi_neigh_lookup+0x10/0x10 [ 81.341640][ C0] neigh_event_ns+0xb3/0x120 [ 81.346303][ C0] arp_process+0x12fc/0x1910 [ 81.351104][ C0] ? __cfi_arp_process+0x10/0x10 [ 81.356331][ C0] ? __cfi_arp_process+0x10/0x10 [ 81.361379][ C0] ? __cfi_arp_process+0x10/0x10 [ 81.366509][ C0] NF_HOOK+0x177/0x1d0 [ 81.370601][ C0] ? __cfi_arp_process+0x10/0x10 [ 81.375567][ C0] ? arp_xmit+0x1f0/0x1f0 [ 81.379927][ C0] ? qdisc_run+0x240/0x240 [ 81.384450][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 81.389765][ C0] ? sched_clock+0x9/0x10 [ 81.394115][ C0] ? sched_clock_cpu+0x6e/0x260 [ 81.398986][ C0] arp_rcv+0x2ef/0x480 [ 81.403088][ C0] ? __cfi_arp_rcv+0x10/0x10 [ 81.407703][ C0] __netif_receive_skb_list_core+0x71e/0x780 [ 81.413715][ C0] ? set_rps_cpu+0x5e0/0x5e0 [ 81.418329][ C0] netif_receive_skb_list_internal+0x7f8/0xab0 [ 81.424509][ C0] ? __cfi_netif_receive_skb_list_internal+0x10/0x10 [ 81.431304][ C0] ? __irq_exit_rcu+0x5e/0xf0 [ 81.436012][ C0] ? irqentry_exit+0x37/0x40 [ 81.440934][ C0] ? sysvec_apic_timer_interrupt+0x64/0xc0 [ 81.446878][ C0] ? detach_buf_split+0x882/0xa80 [ 81.452465][ C0] napi_complete_done+0x36f/0x7a0 [ 81.457882][ C0] ? __cfi_napi_complete_done+0x10/0x10 [ 81.463634][ C0] ? virtqueue_enable_cb_prepare+0x22e/0x510 [ 81.469733][ C0] virtnet_poll+0x9b7/0x1180 [ 81.474466][ C0] ? __cfi_virtnet_poll+0x10/0x10 [ 81.479618][ C0] ? __irq_exit_rcu+0x5e/0xf0 [ 81.484434][ C0] ? irqentry_exit+0x37/0x40 [ 81.489070][ C0] ? sysvec_apic_timer_interrupt+0x64/0xc0 [ 81.494996][ C0] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 81.501180][ C0] __napi_poll+0xd0/0x5e0 [ 81.505628][ C0] net_rx_action+0x4b6/0xac0 [ 81.510251][ C0] ? __cfi_net_rx_action+0x10/0x10 [ 81.515569][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 81.520793][ C0] ? irqtime_account_irq+0x75/0x240 [ 81.526115][ C0] handle_softirqs+0x1d7/0x600 [ 81.530950][ C0] ? irqtime_account_irq+0xc4/0x240 [ 81.536258][ C0] __irq_exit_rcu+0x52/0xf0 [ 81.540955][ C0] irq_exit_rcu+0x9/0x10 [ 81.545224][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 81.551062][ C0] [ 81.554132][ C0] [ 81.557078][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 81.563111][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120 [ 81.569285][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 b1 00 4c fc fb bf 01 00 00 00 f6 e4 ff ff fa bf 01 00 00 00 e8 5b 02 4c fc 65 48 8b 1d 23 cb [ 81.589938][ C0] RSP: 0018:ffffc900039b7820 EFLAGS: 00000246 [ 81.596218][ C0] RAX: 1ffff11025dece01 RBX: ffffc900039b78f8 RCX: ffffffff87b7b100 [ 81.605214][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 81.614133][ C0] RBP: ffffc900039b78a8 R08: ffff88812ef66547 R09: 1ffff11025decca8 [ 81.622242][ C0] R10: dffffc0000000000 R11: ffffed1025decca9 R12: 0000000000000000 [ 81.630607][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000736f04 [ 81.638881][ C0] ? __cfi_preempt_schedule_irq+0x10/0x10 [ 81.644644][ C0] ? kernel_text_address+0xa0/0xd0 [ 81.650279][ C0] raw_irqentry_exit_cond_resched+0x29/0x30 [ 81.656390][ C0] irqentry_exit+0x37/0x40 [ 81.660941][ C0] sysvec_reschedule_ipi+0x78/0x80 [ 81.666089][ C0] asm_sysvec_reschedule_ipi+0x1b/0x20 [ 81.671571][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 81.677050][ C0] Code: e6 00 02 00 00 31 ff e8 ea 5e 76 fc 49 81 e5 00 02 00 00 75 07 e8 1c 5a 76 fc eb 06 e8 15 5a 76 fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40 [ 81.697112][ C0] RSP: 0018:ffffc900039b79a0 EFLAGS: 00000293 [ 81.703377][ C0] RAX: ffffffff84fb1c3b RBX: ffffffff860b4320 RCX: ffff88812ef66540 [ 81.711370][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 81.719920][ C0] RBP: ffffc900039b7a28 R08: 0000000000000003 R09: 0000000000000004 [ 81.728188][ C0] R10: dffffc0000000000 R11: fffffbfff0e2367c R12: dffffc0000000000 [ 81.736465][ C0] R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff92000736f34 [ 81.744824][ C0] ? dump_stack_lvl+0x13b/0x170 [ 81.750270][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 81.756459][ C0] ? unwind_get_return_address+0x4d/0x90 [ 81.762324][ C0] ? __cfi_stack_trace_consume_entry+0x10/0x10 [ 81.768680][ C0] dump_stack+0x15/0x24 [ 81.772950][ C0] should_fail_ex+0x3d4/0x520 [ 81.777835][ C0] __should_failslab+0xac/0xf0 [ 81.782969][ C0] ? tracepoint_probe_unregister+0x211/0x8e0 [ 81.789601][ C0] should_failslab+0x9/0x20 [ 81.794329][ C0] __kmem_cache_alloc_node+0x3d/0x2c0 [ 81.800102][ C0] ? __cfi_mutex_lock+0x10/0x10 [ 81.805265][ C0] ? delete_node+0x2f4/0xa60 [ 81.810146][ C0] ? tracepoint_probe_unregister+0x211/0x8e0 [ 81.816257][ C0] __kmalloc+0xa1/0x1e0 [ 81.820905][ C0] ? __cfi___bpf_trace_neigh_update+0x10/0x10 [ 81.827229][ C0] tracepoint_probe_unregister+0x211/0x8e0 [ 81.833337][ C0] bpf_probe_unregister+0x61/0x70 [ 81.838568][ C0] bpf_raw_tp_link_release+0x63/0x90 [ 81.844120][ C0] bpf_link_free+0x13a/0x3a0 [ 81.848758][ C0] ? bpf_link_put_deferred+0x20/0x20 [ 81.854378][ C0] ? irqentry_exit+0x37/0x40 [ 81.859279][ C0] bpf_link_release+0x15f/0x170 [ 81.864251][ C0] ? __cfi_bpf_link_release+0x10/0x10 [ 81.869837][ C0] __fput+0x1fc/0x8f0 [ 81.874057][ C0] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 81.880517][ C0] ____fput+0x15/0x20 [ 81.884536][ C0] task_work_run+0x1e1/0x250 [ 81.889333][ C0] ? __cfi_task_work_run+0x10/0x10 [ 81.894631][ C0] ? fput+0x15b/0x1a0 [ 81.898663][ C0] exit_to_user_mode_loop+0x9b/0xb0 [ 81.904157][ C0] exit_to_user_mode_prepare+0x87/0xd0 [ 81.909662][ C0] syscall_exit_to_user_mode+0x1a/0x30 [ 81.915252][ C0] do_syscall_64+0x58/0xa0 [ 81.919784][ C0] ? clear_bhb_loop+0x30/0x80 [ 81.924569][ C0] ? clear_bhb_loop+0x30/0x80 [ 81.929277][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 81.935370][ C0] RIP: 0033:0x7f25fd99a379 [ 81.939832][ C0] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 [ 81.960339][ C0] RSP: 002b:00007f25fe873028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 81.969229][ C0] RAX: 0000000000000000 RBX: 00007f25fdbe5fa0 RCX: 00007f25fd99a379 [ 81.977425][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009 [ 81.985861][ C0] RBP: 00007f25fe873090 R08: 0000000000000000 R09: 0000000000000000 [ 81.994210][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 82.002282][ C0] R13: 00007f25fdbe6038 R14: 00007f25fdbe5fa0 R15: 00007ffced4f41c8 [ 82.010656][ C0] [ 82.013886][ C0] Modules linked in: [ 82.018069][ C0] ---[ end trace 0000000000000000 ]--- [ 82.023772][ C0] RIP: 0010:__traceiter_neigh_update+0x9d/0xf0 [ 82.030115][ C0] Code: 05 e8 77 41 b1 fd 49 8b 7e 08 48 8b 75 c8 48 8b 55 c0 44 89 e9 44 8b 45 d4 44 8b 4d d0 41 ba 23 30 2b 32 45 03 54 24 fc 74 02 <0f> 0b 41 ff d4 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 [ 82.050223][ C0] RSP: 0018:ffffc900000074d0 EFLAGS: 00010282 [ 82.056707][ C0] RAX: 1ffff110211f45e9 RBX: ffff888108fa2f40 RCX: 0000000000000004 [ 82.064989][ C0] RDX: ffff888130dafc56 RSI: ffff888120284000 RDI: ffffc90003f63000 [ 82.073051][ C0] RBP: ffffc90000007510 R08: 0000000000000001 R09: 0000000000000000 [ 82.081184][ C0] R10: 00000000d76b972f R11: 0000000000000100 R12: ffffffff817296b0 [ 82.089305][ C0] R13: 0000000000000004 R14: ffff888108fa2f40 R15: dffffc0000000000 [ 82.097518][ C0] FS: 00007f25fe8736c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 82.107062][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.109239][ T795] FAULT_INJECTION: forcing a failure. [ 82.109239][ T795] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 82.114229][ C0] CR2: 0000000000000031 CR3: 000000012cea9000 CR4: 00000000003506b0 [ 82.114253][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.114264][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.114279][ C0] Kernel panic - not syncing: Fatal exception in interrupt [ 82.115782][ C0] Kernel Offset: disabled [ 82.168353][ C0] Rebooting in 86400 seconds..