PREEMPT_{RT,(full)} 
[  448.058411][ T9581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  448.058423][ T9581] Call Trace:
[  448.058431][ T9581]  <TASK>
[  448.058439][ T9581]  dump_stack_lvl+0xe8/0x150
[  448.058473][ T9581]  should_fail_ex+0x46b/0x600
[  448.058508][ T9581]  _copy_to_user+0x31/0xb0
[  448.058532][ T9581]  simple_read_from_buffer+0xe1/0x170
[  448.058560][ T9581]  proc_fail_nth_read+0x1be/0x230
[  448.058586][ T9581]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  448.058610][ T9581]  ? rw_verify_area+0x2ac/0x4e0
[  448.058634][ T9581]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  448.058657][ T9581]  vfs_read+0x212/0xa80
[  448.058690][ T9581]  ? __pfx_vfs_read+0x10/0x10
[  448.058715][ T9581]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  448.058737][ T9581]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.058758][ T9581]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  448.058779][ T9581]  ? mutex_lock_nested+0x152/0x1d0
[  448.058802][ T9581]  ? fdget_pos+0x252/0x320
[  448.058833][ T9581]  ksys_read+0x156/0x270
[  448.058857][ T9581]  ? __pfx_ksys_read+0x10/0x10
[  448.058878][ T9581]  ? fdget+0x189/0x1f0
[  448.058901][ T9581]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.058921][ T9581]  do_syscall_64+0x15f/0xf80
[  448.058940][ T9581]  ? trace_irq_disable+0x3b/0x140
[  448.058967][ T9581]  ? clear_bhb_loop+0x40/0x90
[  448.058989][ T9581]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.059007][ T9581] RIP: 0033:0x7f9acc22814e
[  448.059025][ T9581] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  448.059041][ T9581] RSP: 002b:00007f9acb4ddfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  448.059061][ T9581] RAX: ffffffffffffffda RBX: 00007f9acb4de6c0 RCX: 00007f9acc22814e
[  448.059075][ T9581] RDX: 000000000000000f RSI: 00007f9acb4de0a0 RDI: 0000000000000005
[  448.059087][ T9581] RBP: 00007f9acb4de090 R08: 0000000000000000 R09: 0000000000000000
[  448.059098][ T9581] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  448.059110][ T9581] R13: 0000000000000000 R14: 00007f9acc435f80 R15: 00007ffc78eae1e8
[  448.059141][ T9581]  </TASK>
[  448.232607][ T9458] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[  448.264216][ T9458] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[  448.468430][ T9592] FAULT_INJECTION: forcing a failure.
[  448.468430][ T9592] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  448.468464][ T9592] CPU: 0 UID: 0 PID: 9592 Comm: syz.4.778 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  448.468485][ T9592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  448.468498][ T9592] Call Trace:
[  448.468505][ T9592]  <TASK>
[  448.468514][ T9592]  dump_stack_lvl+0xe8/0x150
[  448.468547][ T9592]  should_fail_ex+0x46b/0x600
[  448.468581][ T9592]  _copy_to_user+0x31/0xb0
[  448.468606][ T9592]  simple_read_from_buffer+0xe1/0x170
[  448.468633][ T9592]  proc_fail_nth_read+0x1be/0x230
[  448.468660][ T9592]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  448.468686][ T9592]  ? rw_verify_area+0x2ac/0x4e0
[  448.468710][ T9592]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  448.468734][ T9592]  vfs_read+0x212/0xa80
[  448.468768][ T9592]  ? __pfx_vfs_read+0x10/0x10
[  448.468794][ T9592]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  448.468824][ T9592]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.468845][ T9592]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  448.468866][ T9592]  ? mutex_lock_nested+0x152/0x1d0
[  448.468892][ T9592]  ? fdget_pos+0x252/0x320
[  448.468922][ T9592]  ksys_read+0x156/0x270
[  448.468949][ T9592]  ? __pfx_ksys_read+0x10/0x10
[  448.468974][ T9592]  ? fdget+0x189/0x1f0
[  448.469001][ T9592]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.469022][ T9592]  do_syscall_64+0x15f/0xf80
[  448.469043][ T9592]  ? trace_irq_disable+0x3b/0x140
[  448.469062][ T9592]  ? clear_bhb_loop+0x40/0x90
[  448.469084][ T9592]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.469110][ T9592] RIP: 0033:0x7f9bf0b0814e
[  448.469128][ T9592] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  448.469144][ T9592] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  448.469165][ T9592] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  448.469179][ T9592] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  448.469192][ T9592] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  448.469203][ T9592] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  448.469215][ T9592] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  448.469245][ T9592]  </TASK>
[  448.558370][ T9587] FAULT_INJECTION: forcing a failure.
[  448.558370][ T9587] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  448.558403][ T9587] CPU: 1 UID: 0 PID: 9587 Comm: syz.2.779 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  448.558423][ T9587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  448.558435][ T9587] Call Trace:
[  448.558442][ T9587]  <TASK>
[  448.558450][ T9587]  dump_stack_lvl+0xe8/0x150
[  448.558482][ T9587]  should_fail_ex+0x46b/0x600
[  448.558517][ T9587]  _copy_to_user+0x31/0xb0
[  448.558541][ T9587]  simple_read_from_buffer+0xe1/0x170
[  448.558568][ T9587]  proc_fail_nth_read+0x1be/0x230
[  448.558595][ T9587]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  448.558621][ T9587]  ? rw_verify_area+0x2ac/0x4e0
[  448.558645][ T9587]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  448.558667][ T9587]  vfs_read+0x212/0xa80
[  448.558699][ T9587]  ? __pfx_vfs_read+0x10/0x10
[  448.558726][ T9587]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  448.558749][ T9587]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.558770][ T9587]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  448.558791][ T9587]  ? mutex_lock_nested+0x152/0x1d0
[  448.558816][ T9587]  ? fdget_pos+0x252/0x320
[  448.558847][ T9587]  ksys_read+0x156/0x270
[  448.558872][ T9587]  ? __pfx_ksys_read+0x10/0x10
[  448.558891][ T9587]  ? fdget+0x189/0x1f0
[  448.558918][ T9587]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.558938][ T9587]  do_syscall_64+0x15f/0xf80
[  448.558954][ T9587]  ? trace_irq_disable+0x3b/0x140
[  448.558972][ T9587]  ? clear_bhb_loop+0x40/0x90
[  448.558994][ T9587]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.559017][ T9587] RIP: 0033:0x7f0690b3814e
[  448.559035][ T9587] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  448.559052][ T9587] RSP: 002b:00007f068fdedfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  448.559071][ T9587] RAX: ffffffffffffffda RBX: 00007f068fdee6c0 RCX: 00007f0690b3814e
[  448.559085][ T9587] RDX: 000000000000000f RSI: 00007f068fdee0a0 RDI: 0000000000000005
[  448.559097][ T9587] RBP: 00007f068fdee090 R08: 0000000000000000 R09: 0000000000000000
[  448.559115][ T9587] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  448.559127][ T9587] R13: 0000000000000000 R14: 00007f0690d45f80 R15: 00007ffe180ecf98
[  448.559156][ T9587]  </TASK>
[  449.120439][ T9598] FAULT_INJECTION: forcing a failure.
[  449.120439][ T9598] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  449.120473][ T9598] CPU: 0 UID: 0 PID: 9598 Comm: syz.3.780 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  449.120495][ T9598] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  449.120507][ T9598] Call Trace:
[  449.120515][ T9598]  <TASK>
[  449.120523][ T9598]  dump_stack_lvl+0xe8/0x150
[  449.120557][ T9598]  should_fail_ex+0x46b/0x600
[  449.120593][ T9598]  _copy_to_user+0x31/0xb0
[  449.120617][ T9598]  simple_read_from_buffer+0xe1/0x170
[  449.120645][ T9598]  proc_fail_nth_read+0x1be/0x230
[  449.120672][ T9598]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  449.120699][ T9598]  ? rw_verify_area+0x2ac/0x4e0
[  449.120723][ T9598]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  449.120747][ T9598]  vfs_read+0x212/0xa80
[  449.120781][ T9598]  ? __pfx_vfs_read+0x10/0x10
[  449.120807][ T9598]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  449.120830][ T9598]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.120852][ T9598]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  449.120873][ T9598]  ? mutex_lock_nested+0x152/0x1d0
[  449.120899][ T9598]  ? fdget_pos+0x252/0x320
[  449.120930][ T9598]  ksys_read+0x156/0x270
[  449.120958][ T9598]  ? __pfx_ksys_read+0x10/0x10
[  449.120982][ T9598]  ? fdget+0x189/0x1f0
[  449.121010][ T9598]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.121030][ T9598]  do_syscall_64+0x15f/0xf80
[  449.121058][ T9598]  ? trace_irq_disable+0x3b/0x140
[  449.121076][ T9598]  ? clear_bhb_loop+0x40/0x90
[  449.121099][ T9598]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.121118][ T9598] RIP: 0033:0x7f995607814e
[  449.121135][ T9598] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  449.121152][ T9598] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  449.121172][ T9598] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  449.121186][ T9598] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  449.121198][ T9598] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  449.121209][ T9598] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  449.121221][ T9598] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  449.121252][ T9598]  </TASK>
[  449.202075][ T9593] FAULT_INJECTION: forcing a failure.
[  449.202075][ T9593] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  449.202108][ T9593] CPU: 1 UID: 0 PID: 9593 Comm: syz.0.781 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  449.202129][ T9593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  449.202141][ T9593] Call Trace:
[  449.202148][ T9593]  <TASK>
[  449.202156][ T9593]  dump_stack_lvl+0xe8/0x150
[  449.202188][ T9593]  should_fail_ex+0x46b/0x600
[  449.202221][ T9593]  _copy_to_user+0x31/0xb0
[  449.202244][ T9593]  simple_read_from_buffer+0xe1/0x170
[  449.202270][ T9593]  proc_fail_nth_read+0x1be/0x230
[  449.202295][ T9593]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  449.202321][ T9593]  ? rw_verify_area+0x2ac/0x4e0
[  449.202345][ T9593]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  449.202368][ T9593]  vfs_read+0x212/0xa80
[  449.202400][ T9593]  ? __pfx_vfs_read+0x10/0x10
[  449.202425][ T9593]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  449.202448][ T9593]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.202470][ T9593]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  449.202490][ T9593]  ? mutex_lock_nested+0x152/0x1d0
[  449.202513][ T9593]  ? fdget_pos+0x252/0x320
[  449.202544][ T9593]  ksys_read+0x156/0x270
[  449.202576][ T9593]  ? __pfx_ksys_read+0x10/0x10
[  449.202599][ T9593]  ? fdget+0x189/0x1f0
[  449.202627][ T9593]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.202647][ T9593]  do_syscall_64+0x15f/0xf80
[  449.202667][ T9593]  ? trace_irq_disable+0x3b/0x140
[  449.202686][ T9593]  ? clear_bhb_loop+0x40/0x90
[  449.202708][ T9593]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.202725][ T9593] RIP: 0033:0x7f9acc22814e
[  449.202742][ T9593] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  449.202757][ T9593] RSP: 002b:00007f9acb4ddfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  449.202774][ T9593] RAX: ffffffffffffffda RBX: 00007f9acb4de6c0 RCX: 00007f9acc22814e
[  449.202787][ T9593] RDX: 000000000000000f RSI: 00007f9acb4de0a0 RDI: 0000000000000005
[  449.202798][ T9593] RBP: 00007f9acb4de090 R08: 0000000000000000 R09: 0000000000000000
[  449.202809][ T9593] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  449.202825][ T9593] R13: 0000000000000000 R14: 00007f9acc435f80 R15: 00007ffc78eae1e8
[  449.202854][ T9593]  </TASK>
[  449.413460][   T13] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  449.461716][ T9458] team0: Port device team_slave_0 added
[  449.609167][ T9602] FAULT_INJECTION: forcing a failure.
[  449.609167][ T9602] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  449.609199][ T9602] CPU: 0 UID: 0 PID: 9602 Comm: syz.4.782 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  449.609221][ T9602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  449.609233][ T9602] Call Trace:
[  449.609240][ T9602]  <TASK>
[  449.609249][ T9602]  dump_stack_lvl+0xe8/0x150
[  449.609281][ T9602]  should_fail_ex+0x46b/0x600
[  449.609316][ T9602]  _copy_to_user+0x31/0xb0
[  449.609341][ T9602]  simple_read_from_buffer+0xe1/0x170
[  449.609368][ T9602]  proc_fail_nth_read+0x1be/0x230
[  449.609395][ T9602]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  449.609421][ T9602]  ? rw_verify_area+0x2ac/0x4e0
[  449.609446][ T9602]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  449.609471][ T9602]  vfs_read+0x212/0xa80
[  449.609504][ T9602]  ? __pfx_vfs_read+0x10/0x10
[  449.609531][ T9602]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  449.609553][ T9602]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.609575][ T9602]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  449.609596][ T9602]  ? mutex_lock_nested+0x152/0x1d0
[  449.609622][ T9602]  ? fdget_pos+0x252/0x320
[  449.609651][ T9602]  ksys_read+0x156/0x270
[  449.609679][ T9602]  ? __pfx_ksys_read+0x10/0x10
[  449.609703][ T9602]  ? fdget+0x189/0x1f0
[  449.609730][ T9602]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.609750][ T9602]  do_syscall_64+0x15f/0xf80
[  449.609770][ T9602]  ? trace_irq_disable+0x3b/0x140
[  449.609789][ T9602]  ? clear_bhb_loop+0x40/0x90
[  449.609812][ T9602]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.609831][ T9602] RIP: 0033:0x7f9bf0b0814e
[  449.609849][ T9602] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  449.609866][ T9602] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  449.609886][ T9602] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  449.609900][ T9602] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  449.609912][ T9602] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  449.609923][ T9602] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  449.609935][ T9602] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  449.609966][ T9602]  </TASK>
[  449.690709][ T9599] FAULT_INJECTION: forcing a failure.
[  449.690709][ T9599] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  449.690742][ T9599] CPU: 1 UID: 0 PID: 9599 Comm: syz.2.783 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  449.690764][ T9599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  449.690775][ T9599] Call Trace:
[  449.690783][ T9599]  <TASK>
[  449.690791][ T9599]  dump_stack_lvl+0xe8/0x150
[  449.690824][ T9599]  should_fail_ex+0x46b/0x600
[  449.690858][ T9599]  _copy_to_user+0x31/0xb0
[  449.690882][ T9599]  simple_read_from_buffer+0xe1/0x170
[  449.690909][ T9599]  proc_fail_nth_read+0x1be/0x230
[  449.690935][ T9599]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  449.690961][ T9599]  ? rw_verify_area+0x2ac/0x4e0
[  449.690985][ T9599]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  449.691016][ T9599]  vfs_read+0x212/0xa80
[  449.691048][ T9599]  ? __pfx_vfs_read+0x10/0x10
[  449.691075][ T9599]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  449.691098][ T9599]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.691119][ T9599]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  449.691140][ T9599]  ? mutex_lock_nested+0x152/0x1d0
[  449.691165][ T9599]  ? fdget_pos+0x252/0x320
[  449.691194][ T9599]  ksys_read+0x156/0x270
[  449.691221][ T9599]  ? __pfx_ksys_read+0x10/0x10
[  449.691245][ T9599]  ? fdget+0x189/0x1f0
[  449.691272][ T9599]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.691293][ T9599]  do_syscall_64+0x15f/0xf80
[  449.691313][ T9599]  ? trace_irq_disable+0x3b/0x140
[  449.691331][ T9599]  ? clear_bhb_loop+0x40/0x90
[  449.691355][ T9599]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.691373][ T9599] RIP: 0033:0x7f0690b3814e
[  449.691390][ T9599] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  449.691404][ T9599] RSP: 002b:00007f068fdedfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  449.691422][ T9599] RAX: ffffffffffffffda RBX: 00007f068fdee6c0 RCX: 00007f0690b3814e
[  449.691434][ T9599] RDX: 000000000000000f RSI: 00007f068fdee0a0 RDI: 0000000000000005
[  449.691445][ T9599] RBP: 00007f068fdee090 R08: 0000000000000000 R09: 0000000000000000
[  449.691455][ T9599] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  449.691465][ T9599] R13: 0000000000000000 R14: 00007f0690d45f80 R15: 00007ffe180ecf98
[  449.691496][ T9599]  </TASK>
[  449.754559][ T9458] team0: Port device team_slave_1 added
[  450.227398][ T9610] FAULT_INJECTION: forcing a failure.
[  450.227398][ T9610] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  450.227431][ T9610] CPU: 0 UID: 0 PID: 9610 Comm: syz.0.784 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  450.227452][ T9610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  450.227464][ T9610] Call Trace:
[  450.227471][ T9610]  <TASK>
[  450.227479][ T9610]  dump_stack_lvl+0xe8/0x150
[  450.227513][ T9610]  should_fail_ex+0x46b/0x600
[  450.227548][ T9610]  _copy_to_user+0x31/0xb0
[  450.227572][ T9610]  simple_read_from_buffer+0xe1/0x170
[  450.227599][ T9610]  proc_fail_nth_read+0x1be/0x230
[  450.227626][ T9610]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  450.227651][ T9610]  ? rw_verify_area+0x2ac/0x4e0
[  450.227676][ T9610]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  450.227700][ T9610]  vfs_read+0x212/0xa80
[  450.227733][ T9610]  ? __pfx_vfs_read+0x10/0x10
[  450.227759][ T9610]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  450.227783][ T9610]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.227804][ T9610]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  450.227825][ T9610]  ? mutex_lock_nested+0x152/0x1d0
[  450.227851][ T9610]  ? fdget_pos+0x252/0x320
[  450.227881][ T9610]  ksys_read+0x156/0x270
[  450.227908][ T9610]  ? __pfx_ksys_read+0x10/0x10
[  450.227932][ T9610]  ? fdget+0x189/0x1f0
[  450.227959][ T9610]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.227986][ T9610]  do_syscall_64+0x15f/0xf80
[  450.228007][ T9610]  ? trace_irq_disable+0x3b/0x140
[  450.228026][ T9610]  ? clear_bhb_loop+0x40/0x90
[  450.228049][ T9610]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.228068][ T9610] RIP: 0033:0x7f9acc22814e
[  450.228085][ T9610] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  450.228101][ T9610] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  450.228121][ T9610] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  450.228135][ T9610] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
2026/04/17 23:20:49 executed programs: 790
[  450.228147][ T9610] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  450.228159][ T9610] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  450.228171][ T9610] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  450.228202][ T9610]  </TASK>
[  450.306586][ T9606] FAULT_INJECTION: forcing a failure.
[  450.306586][ T9606] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  450.306618][ T9606] CPU: 1 UID: 0 PID: 9606 Comm: syz.3.785 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  450.306640][ T9606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  450.306651][ T9606] Call Trace:
[  450.306658][ T9606]  <TASK>
[  450.306666][ T9606]  dump_stack_lvl+0xe8/0x150
[  450.306699][ T9606]  should_fail_ex+0x46b/0x600
[  450.306762][ T9606]  _copy_to_user+0x31/0xb0
[  450.306785][ T9606]  simple_read_from_buffer+0xe1/0x170
[  450.306810][ T9606]  proc_fail_nth_read+0x1be/0x230
[  450.306837][ T9606]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  450.306866][ T9606]  ? rw_verify_area+0x2ac/0x4e0
[  450.306891][ T9606]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  450.306912][ T9606]  vfs_read+0x212/0xa80
[  450.306943][ T9606]  ? __pfx_vfs_read+0x10/0x10
[  450.306970][ T9606]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  450.306992][ T9606]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.307012][ T9606]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  450.307034][ T9606]  ? mutex_lock_nested+0x152/0x1d0
[  450.307057][ T9606]  ? fdget_pos+0x252/0x320
[  450.307085][ T9606]  ksys_read+0x156/0x270
[  450.307109][ T9606]  ? __pfx_ksys_read+0x10/0x10
[  450.307132][ T9606]  ? fdget+0x189/0x1f0
[  450.307159][ T9606]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.307178][ T9606]  do_syscall_64+0x15f/0xf80
[  450.307198][ T9606]  ? trace_irq_disable+0x3b/0x140
[  450.307216][ T9606]  ? clear_bhb_loop+0x40/0x90
[  450.307239][ T9606]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.307257][ T9606] RIP: 0033:0x7f995607814e
[  450.307275][ T9606] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  450.307291][ T9606] RSP: 002b:00007f995532dfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  450.307311][ T9606] RAX: ffffffffffffffda RBX: 00007f995532e6c0 RCX: 00007f995607814e
[  450.307325][ T9606] RDX: 000000000000000f RSI: 00007f995532e0a0 RDI: 0000000000000005
[  450.307334][ T9606] RBP: 00007f995532e090 R08: 0000000000000000 R09: 0000000000000000
[  450.307346][ T9606] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  450.307357][ T9606] R13: 0000000000000000 R14: 00007f9956285f80 R15: 00007fff9ab23118
[  450.307388][ T9606]  </TASK>
[  450.838359][ T9614] FAULT_INJECTION: forcing a failure.
[  450.838359][ T9614] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  450.838392][ T9614] CPU: 0 UID: 0 PID: 9614 Comm: syz.2.787 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  450.838410][ T9614] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  450.838421][ T9614] Call Trace:
[  450.838429][ T9614]  <TASK>
[  450.838437][ T9614]  dump_stack_lvl+0xe8/0x150
[  450.838469][ T9614]  should_fail_ex+0x46b/0x600
[  450.838504][ T9614]  _copy_to_user+0x31/0xb0
[  450.838529][ T9614]  simple_read_from_buffer+0xe1/0x170
[  450.838555][ T9614]  proc_fail_nth_read+0x1be/0x230
[  450.838582][ T9614]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  450.838616][ T9614]  ? rw_verify_area+0x2ac/0x4e0
[  450.838640][ T9614]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  450.838665][ T9614]  vfs_read+0x212/0xa80
[  450.838697][ T9614]  ? __pfx_vfs_read+0x10/0x10
[  450.838723][ T9614]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  450.838747][ T9614]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.838768][ T9614]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  450.838790][ T9614]  ? mutex_lock_nested+0x152/0x1d0
[  450.838815][ T9614]  ? fdget_pos+0x252/0x320
[  450.838845][ T9614]  ksys_read+0x156/0x270
[  450.838871][ T9614]  ? __pfx_ksys_read+0x10/0x10
[  450.838895][ T9614]  ? fdget+0x189/0x1f0
[  450.838922][ T9614]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.838942][ T9614]  do_syscall_64+0x15f/0xf80
[  450.838962][ T9614]  ? trace_irq_disable+0x3b/0x140
[  450.838987][ T9614]  ? clear_bhb_loop+0x40/0x90
[  450.839009][ T9614]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.839026][ T9614] RIP: 0033:0x7f0690b3814e
[  450.839044][ T9614] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  450.839060][ T9614] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  450.839080][ T9614] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  450.839093][ T9614] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  450.839105][ T9614] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  450.839117][ T9614] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  450.839128][ T9614] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  450.839158][ T9614]  </TASK>
[  450.919949][ T9611] FAULT_INJECTION: forcing a failure.
[  450.919949][ T9611] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  450.919982][ T9611] CPU: 1 UID: 0 PID: 9611 Comm: syz.4.786 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  450.920000][ T9611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  450.920011][ T9611] Call Trace:
[  450.920018][ T9611]  <TASK>
[  450.920026][ T9611]  dump_stack_lvl+0xe8/0x150
[  450.920058][ T9611]  should_fail_ex+0x46b/0x600
[  450.920091][ T9611]  _copy_to_user+0x31/0xb0
[  450.920112][ T9611]  simple_read_from_buffer+0xe1/0x170
[  450.920139][ T9611]  proc_fail_nth_read+0x1be/0x230
[  450.920165][ T9611]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  450.920189][ T9611]  ? rw_verify_area+0x2ac/0x4e0
[  450.920213][ T9611]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  450.920235][ T9611]  vfs_read+0x212/0xa80
[  450.920267][ T9611]  ? __pfx_vfs_read+0x10/0x10
[  450.920292][ T9611]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  450.920314][ T9611]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.920334][ T9611]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  450.920355][ T9611]  ? mutex_lock_nested+0x152/0x1d0
[  450.920378][ T9611]  ? fdget_pos+0x252/0x320
[  450.920407][ T9611]  ksys_read+0x156/0x270
[  450.920432][ T9611]  ? __pfx_ksys_read+0x10/0x10
[  450.920455][ T9611]  ? fdget+0x189/0x1f0
[  450.920480][ T9611]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.920500][ T9611]  do_syscall_64+0x15f/0xf80
[  450.920519][ T9611]  ? trace_irq_disable+0x3b/0x140
[  450.920537][ T9611]  ? clear_bhb_loop+0x40/0x90
[  450.920559][ T9611]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.920576][ T9611] RIP: 0033:0x7f9bf0b0814e
[  450.920593][ T9611] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  450.920609][ T9611] RSP: 002b:00007f9befdbdfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  450.920628][ T9611] RAX: ffffffffffffffda RBX: 00007f9befdbe6c0 RCX: 00007f9bf0b0814e
[  450.920639][ T9611] RDX: 000000000000000f RSI: 00007f9befdbe0a0 RDI: 0000000000000005
[  450.920651][ T9611] RBP: 00007f9befdbe090 R08: 0000000000000000 R09: 0000000000000000
[  450.920671][ T9611] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  450.920682][ T9611] R13: 0000000000000000 R14: 00007f9bf0d15f80 R15: 00007ffe3fcfe498
[  450.920712][ T9611]  </TASK>
[  451.134855][   T13] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  451.210925][ T9458] batman_adv: batadv0: Adding interface: batadv_slave_0
[  451.210944][ T9458] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[  451.210968][ T9458] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[  451.213709][ T9458] batman_adv: batadv0: Adding interface: batadv_slave_1
[  451.213723][ T9458] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[  451.213746][ T9458] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[  451.396327][ T9620] FAULT_INJECTION: forcing a failure.
[  451.396327][ T9620] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  451.396358][ T9620] CPU: 0 UID: 0 PID: 9620 Comm: syz.0.788 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  451.396383][ T9620] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  451.396395][ T9620] Call Trace:
[  451.396402][ T9620]  <TASK>
[  451.396409][ T9620]  dump_stack_lvl+0xe8/0x150
[  451.396440][ T9620]  should_fail_ex+0x46b/0x600
[  451.396474][ T9620]  _copy_to_user+0x31/0xb0
[  451.396497][ T9620]  simple_read_from_buffer+0xe1/0x170
[  451.396525][ T9620]  proc_fail_nth_read+0x1be/0x230
[  451.396552][ T9620]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  451.396579][ T9620]  ? rw_verify_area+0x2ac/0x4e0
[  451.396603][ T9620]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  451.396627][ T9620]  vfs_read+0x212/0xa80
[  451.396661][ T9620]  ? __pfx_vfs_read+0x10/0x10
[  451.396688][ T9620]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  451.396711][ T9620]  ? lockdep_hardirqs_on+0x7a/0x110
[  451.396733][ T9620]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  451.396755][ T9620]  ? mutex_lock_nested+0x152/0x1d0
[  451.396780][ T9620]  ? fdget_pos+0x252/0x320
[  451.396811][ T9620]  ksys_read+0x156/0x270
[  451.396839][ T9620]  ? __pfx_ksys_read+0x10/0x10
[  451.396872][ T9620]  ? fdget+0x189/0x1f0
[  451.396899][ T9620]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.396920][ T9620]  do_syscall_64+0x15f/0xf80
[  451.396941][ T9620]  ? trace_irq_disable+0x3b/0x140
[  451.396960][ T9620]  ? clear_bhb_loop+0x40/0x90
[  451.396983][ T9620]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.397001][ T9620] RIP: 0033:0x7f9acc22814e
[  451.397019][ T9620] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  451.397034][ T9620] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  451.397055][ T9620] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  451.397068][ T9620] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  451.397080][ T9620] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  451.397092][ T9620] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  451.397104][ T9620] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  451.397134][ T9620]  </TASK>
[  451.476460][ T9617] FAULT_INJECTION: forcing a failure.
[  451.476460][ T9617] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  451.476490][ T9617] CPU: 1 UID: 0 PID: 9617 Comm: syz.3.789 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  451.476510][ T9617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  451.476521][ T9617] Call Trace:
[  451.476528][ T9617]  <TASK>
[  451.476536][ T9617]  dump_stack_lvl+0xe8/0x150
[  451.476569][ T9617]  should_fail_ex+0x46b/0x600
[  451.476610][ T9617]  _copy_to_user+0x31/0xb0
[  451.476634][ T9617]  simple_read_from_buffer+0xe1/0x170
[  451.476661][ T9617]  proc_fail_nth_read+0x1be/0x230
[  451.476687][ T9617]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  451.476711][ T9617]  ? rw_verify_area+0x2ac/0x4e0
[  451.476735][ T9617]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  451.476758][ T9617]  vfs_read+0x212/0xa80
[  451.476788][ T9617]  ? __pfx_vfs_read+0x10/0x10
[  451.476813][ T9617]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  451.476835][ T9617]  ? lockdep_hardirqs_on+0x7a/0x110
[  451.476856][ T9617]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  451.476877][ T9617]  ? mutex_lock_nested+0x152/0x1d0
[  451.476901][ T9617]  ? fdget_pos+0x252/0x320
[  451.476931][ T9617]  ksys_read+0x156/0x270
[  451.476957][ T9617]  ? __pfx_ksys_read+0x10/0x10
[  451.476980][ T9617]  ? fdget+0x189/0x1f0
[  451.477006][ T9617]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.477026][ T9617]  do_syscall_64+0x15f/0xf80
[  451.477045][ T9617]  ? trace_irq_disable+0x3b/0x140
[  451.477063][ T9617]  ? clear_bhb_loop+0x40/0x90
[  451.477085][ T9617]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.477102][ T9617] RIP: 0033:0x7f995607814e
[  451.477119][ T9617] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  451.477133][ T9617] RSP: 002b:00007f995532dfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  451.477153][ T9617] RAX: ffffffffffffffda RBX: 00007f995532e6c0 RCX: 00007f995607814e
[  451.477165][ T9617] RDX: 000000000000000f RSI: 00007f995532e0a0 RDI: 0000000000000005
[  451.477177][ T9617] RBP: 00007f995532e090 R08: 0000000000000000 R09: 0000000000000000
[  451.477188][ T9617] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  451.477199][ T9617] R13: 0000000000000000 R14: 00007f9956285f80 R15: 00007fff9ab23118
[  451.477228][ T9617]  </TASK>
[  451.957816][ T9458] hsr_slave_0: entered promiscuous mode
[  451.961378][ T9458] hsr_slave_1: entered promiscuous mode
[  451.965113][ T9458] debugfs: 'hsr0' already exists in 'hsr'
[  451.965139][ T9458] Cannot create hsr debugfs directory
[  452.349318][ T9626] FAULT_INJECTION: forcing a failure.
[  452.349318][ T9626] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  452.349353][ T9626] CPU: 1 UID: 0 PID: 9626 Comm: syz.4.791 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  452.349375][ T9626] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  452.349387][ T9626] Call Trace:
[  452.349395][ T9626]  <TASK>
[  452.349403][ T9626]  dump_stack_lvl+0xe8/0x150
[  452.349437][ T9626]  should_fail_ex+0x46b/0x600
[  452.349482][ T9626]  _copy_to_user+0x31/0xb0
[  452.349506][ T9626]  simple_read_from_buffer+0xe1/0x170
[  452.349534][ T9626]  proc_fail_nth_read+0x1be/0x230
[  452.349561][ T9626]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  452.349588][ T9626]  ? rw_verify_area+0x2ac/0x4e0
[  452.349612][ T9626]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  452.349637][ T9626]  vfs_read+0x212/0xa80
[  452.349671][ T9626]  ? __pfx_vfs_read+0x10/0x10
[  452.349697][ T9626]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  452.349720][ T9626]  ? lockdep_hardirqs_on+0x7a/0x110
[  452.349742][ T9626]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  452.349763][ T9626]  ? mutex_lock_nested+0x152/0x1d0
[  452.349788][ T9626]  ? fdget_pos+0x252/0x320
[  452.349819][ T9626]  ksys_read+0x156/0x270
[  452.349846][ T9626]  ? __pfx_ksys_read+0x10/0x10
[  452.349871][ T9626]  ? fdget+0x189/0x1f0
[  452.349896][ T9626]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  452.349916][ T9626]  do_syscall_64+0x15f/0xf80
[  452.349936][ T9626]  ? trace_irq_disable+0x3b/0x140
[  452.349955][ T9626]  ? clear_bhb_loop+0x40/0x90
[  452.349978][ T9626]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  452.349996][ T9626] RIP: 0033:0x7f9bf0b0814e
[  452.350014][ T9626] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  452.350029][ T9626] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  452.350048][ T9626] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  452.350062][ T9626] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  452.350074][ T9626] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  452.350086][ T9626] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  452.350097][ T9626] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  452.350128][ T9626]  </TASK>
[  452.353627][ T9627] FAULT_INJECTION: forcing a failure.
[  452.353627][ T9627] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  452.353659][ T9627] CPU: 0 UID: 0 PID: 9627 Comm: syz.2.790 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  452.353679][ T9627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  452.353691][ T9627] Call Trace:
[  452.353707][ T9627]  <TASK>
[  452.353715][ T9627]  dump_stack_lvl+0xe8/0x150
[  452.353749][ T9627]  should_fail_ex+0x46b/0x600
[  452.353783][ T9627]  _copy_to_user+0x31/0xb0
[  452.353807][ T9627]  simple_read_from_buffer+0xe1/0x170
[  452.353835][ T9627]  proc_fail_nth_read+0x1be/0x230
[  452.353862][ T9627]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  452.353888][ T9627]  ? rw_verify_area+0x2ac/0x4e0
[  452.353912][ T9627]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  452.353937][ T9627]  vfs_read+0x212/0xa80
[  452.353970][ T9627]  ? __pfx_vfs_read+0x10/0x10
[  452.353997][ T9627]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  452.354020][ T9627]  ? lockdep_hardirqs_on+0x7a/0x110
[  452.354042][ T9627]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  452.354063][ T9627]  ? mutex_lock_nested+0x152/0x1d0
[  452.354088][ T9627]  ? fdget_pos+0x252/0x320
[  452.354119][ T9627]  ksys_read+0x156/0x270
[  452.354146][ T9627]  ? __pfx_ksys_read+0x10/0x10
[  452.354170][ T9627]  ? fdget+0x189/0x1f0
[  452.354197][ T9627]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  452.354227][ T9627]  do_syscall_64+0x15f/0xf80
[  452.354248][ T9627]  ? trace_irq_disable+0x3b/0x140
[  452.354266][ T9627]  ? clear_bhb_loop+0x40/0x90
[  452.354290][ T9627]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  452.354308][ T9627] RIP: 0033:0x7f0690b3814e
[  452.354326][ T9627] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  452.354342][ T9627] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  452.354361][ T9627] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  452.354374][ T9627] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  452.354383][ T9627] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  452.354393][ T9627] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  452.354405][ T9627] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  452.354436][ T9627]  </TASK>
[  454.290449][ T9639] FAULT_INJECTION: forcing a failure.
[  454.290449][ T9639] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  454.290482][ T9639] CPU: 1 UID: 0 PID: 9639 Comm: syz.3.793 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  454.290504][ T9639] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  454.290516][ T9639] Call Trace:
[  454.290524][ T9639]  <TASK>
[  454.290537][ T9639]  dump_stack_lvl+0xe8/0x150
[  454.290571][ T9639]  should_fail_ex+0x46b/0x600
[  454.290613][ T9639]  _copy_to_user+0x31/0xb0
[  454.290637][ T9639]  simple_read_from_buffer+0xe1/0x170
[  454.290665][ T9639]  proc_fail_nth_read+0x1be/0x230
[  454.290692][ T9639]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  454.290719][ T9639]  ? rw_verify_area+0x2ac/0x4e0
[  454.290744][ T9639]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  454.290768][ T9639]  vfs_read+0x212/0xa80
[  454.290802][ T9639]  ? __pfx_vfs_read+0x10/0x10
[  454.290829][ T9639]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  454.290852][ T9639]  ? lockdep_hardirqs_on+0x7a/0x110
[  454.290874][ T9639]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  454.290895][ T9639]  ? mutex_lock_nested+0x152/0x1d0
[  454.290920][ T9639]  ? fdget_pos+0x252/0x320
[  454.290951][ T9639]  ksys_read+0x156/0x270
[  454.290977][ T9639]  ? __pfx_ksys_read+0x10/0x10
[  454.291002][ T9639]  ? fdget+0x189/0x1f0
[  454.291029][ T9639]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  454.291049][ T9639]  do_syscall_64+0x15f/0xf80
[  454.291069][ T9639]  ? trace_irq_disable+0x3b/0x140
[  454.291088][ T9639]  ? clear_bhb_loop+0x40/0x90
[  454.291111][ T9639]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  454.291129][ T9639] RIP: 0033:0x7f995607814e
[  454.291147][ T9639] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  454.291162][ T9639] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  454.291182][ T9639] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  454.291196][ T9639] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  454.291208][ T9639] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  454.291219][ T9639] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  454.291231][ T9639] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  454.291262][ T9639]  </TASK>
[  454.293029][ T9637] FAULT_INJECTION: forcing a failure.
[  454.293029][ T9637] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  454.293059][ T9637] CPU: 1 UID: 0 PID: 9637 Comm: syz.4.794 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  454.293080][ T9637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  454.293091][ T9637] Call Trace:
[  454.293099][ T9637]  <TASK>
[  454.293107][ T9637]  dump_stack_lvl+0xe8/0x150
[  454.293139][ T9637]  should_fail_ex+0x46b/0x600
[  454.293173][ T9637]  _copy_to_user+0x31/0xb0
[  454.293197][ T9637]  simple_read_from_buffer+0xe1/0x170
[  454.293224][ T9637]  proc_fail_nth_read+0x1be/0x230
[  454.293251][ T9637]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  454.293278][ T9637]  ? rw_verify_area+0x2ac/0x4e0
[  454.293302][ T9637]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  454.293326][ T9637]  vfs_read+0x212/0xa80
[  454.293359][ T9637]  ? __pfx_vfs_read+0x10/0x10
[  454.293385][ T9637]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  454.293408][ T9637]  ? lockdep_hardirqs_on+0x7a/0x110
[  454.293431][ T9637]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  454.293452][ T9637]  ? mutex_lock_nested+0x152/0x1d0
[  454.293477][ T9637]  ? fdget_pos+0x252/0x320
[  454.293506][ T9637]  ksys_read+0x156/0x270
[  454.293533][ T9637]  ? __pfx_ksys_read+0x10/0x10
[  454.293558][ T9637]  ? fdget+0x189/0x1f0
[  454.293592][ T9637]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  454.293612][ T9637]  do_syscall_64+0x15f/0xf80
[  454.293633][ T9637]  ? trace_irq_disable+0x3b/0x140
[  454.293651][ T9637]  ? clear_bhb_loop+0x40/0x90
[  454.293674][ T9637]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  454.293693][ T9637] RIP: 0033:0x7f9bf0b0814e
[  454.293710][ T9637] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  454.293725][ T9637] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  454.293745][ T9637] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  454.293758][ T9637] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  454.293770][ T9637] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  454.293782][ T9637] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  454.293793][ T9637] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  454.293824][ T9637]  </TASK>
[  454.295220][ T9638] FAULT_INJECTION: forcing a failure.
[  454.295220][ T9638] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  454.295248][ T9638] CPU: 1 UID: 0 PID: 9638 Comm: syz.2.792 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  454.295266][ T9638] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  454.295276][ T9638] Call Trace:
[  454.295284][ T9638]  <TASK>
[  454.295292][ T9638]  dump_stack_lvl+0xe8/0x150
[  454.295323][ T9638]  should_fail_ex+0x46b/0x600
[  454.295356][ T9638]  _copy_to_user+0x31/0xb0
[  454.295380][ T9638]  simple_read_from_buffer+0xe1/0x170
[  454.295408][ T9638]  proc_fail_nth_read+0x1be/0x230
[  454.295433][ T9638]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  454.295460][ T9638]  ? rw_verify_area+0x2ac/0x4e0
[  454.295484][ T9638]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  454.295508][ T9638]  vfs_read+0x212/0xa80
[  454.295541][ T9638]  ? __pfx_vfs_read+0x10/0x10
[  454.295568][ T9638]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  454.295599][ T9638]  ? lockdep_hardirqs_on+0x7a/0x110
[  454.295621][ T9638]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  454.295643][ T9638]  ? mutex_lock_nested+0x152/0x1d0
[  454.295667][ T9638]  ? fdget_pos+0x252/0x320
[  454.295698][ T9638]  ksys_read+0x156/0x270
[  454.295725][ T9638]  ? __pfx_ksys_read+0x10/0x10
[  454.295749][ T9638]  ? fdget+0x189/0x1f0
[  454.295791][ T9638]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  454.295811][ T9638]  do_syscall_64+0x15f/0xf80
[  454.295832][ T9638]  ? trace_irq_disable+0x3b/0x140
[  454.295850][ T9638]  ? clear_bhb_loop+0x40/0x90
[  454.295873][ T9638]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  454.295892][ T9638] RIP: 0033:0x7f0690b3814e
[  454.295909][ T9638] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  454.295924][ T9638] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  454.295943][ T9638] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  454.295957][ T9638] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  454.295968][ T9638] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  454.295980][ T9638] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  454.295991][ T9638] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  454.296022][ T9638]  </TASK>
[  454.305505][ T9640] FAULT_INJECTION: forcing a failure.
[  454.305505][ T9640] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  454.305537][ T9640] CPU: 0 UID: 0 PID: 9640 Comm: syz.0.795 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  454.305560][ T9640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  454.305571][ T9640] Call Trace:
[  454.305579][ T9640]  <TASK>
[  454.305586][ T9640]  dump_stack_lvl+0xe8/0x150
[  454.305618][ T9640]  should_fail_ex+0x46b/0x600
[  454.305651][ T9640]  _copy_to_user+0x31/0xb0
[  454.305680][ T9640]  simple_read_from_buffer+0xe1/0x170
[  454.305707][ T9640]  proc_fail_nth_read+0x1be/0x230
[  454.305733][ T9640]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  454.305759][ T9640]  ? rw_verify_area+0x2ac/0x4e0
[  454.305783][ T9640]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  454.305806][ T9640]  vfs_read+0x212/0xa80
[  454.305837][ T9640]  ? __pfx_vfs_read+0x10/0x10
[  454.305858][ T9640]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  454.305879][ T9640]  ? lockdep_hardirqs_on+0x7a/0x110
[  454.305901][ T9640]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  454.305921][ T9640]  ? mutex_lock_nested+0x152/0x1d0
[  454.305945][ T9640]  ? fdget_pos+0x252/0x320
[  454.305975][ T9640]  ksys_read+0x156/0x270
[  454.306001][ T9640]  ? __pfx_ksys_read+0x10/0x10
[  454.306025][ T9640]  ? fdget+0x189/0x1f0
[  454.306051][ T9640]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  454.306071][ T9640]  do_syscall_64+0x15f/0xf80
[  454.306092][ T9640]  ? trace_irq_disable+0x3b/0x140
[  454.306110][ T9640]  ? clear_bhb_loop+0x40/0x90
[  454.306132][ T9640]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  454.306150][ T9640] RIP: 0033:0x7f9acc22814e
[  454.306168][ T9640] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  454.306183][ T9640] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  454.306203][ T9640] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  454.306217][ T9640] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  454.306229][ T9640] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  454.306240][ T9640] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  454.306251][ T9640] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  454.306280][ T9640]  </TASK>
[  455.120146][   T13] bridge_slave_1: left allmulticast mode
[  455.120176][   T13] bridge_slave_1: left promiscuous mode
[  455.120475][   T13] bridge0: port 2(bridge_slave_1) entered disabled state
[  455.702237][ T9646] FAULT_INJECTION: forcing a failure.
[  455.702237][ T9646] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  455.702269][ T9646] CPU: 1 UID: 0 PID: 9646 Comm: syz.4.796 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  455.702291][ T9646] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  455.702303][ T9646] Call Trace:
[  455.702311][ T9646]  <TASK>
[  455.702319][ T9646]  dump_stack_lvl+0xe8/0x150
[  455.702352][ T9646]  should_fail_ex+0x46b/0x600
[  455.702387][ T9646]  _copy_to_user+0x31/0xb0
[  455.702412][ T9646]  simple_read_from_buffer+0xe1/0x170
[  455.702447][ T9646]  proc_fail_nth_read+0x1be/0x230
[  455.702475][ T9646]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  455.702501][ T9646]  ? rw_verify_area+0x2ac/0x4e0
[  455.702525][ T9646]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  455.702550][ T9646]  vfs_read+0x212/0xa80
[  455.702582][ T9646]  ? __pfx_vfs_read+0x10/0x10
[  455.702627][ T9646]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  455.702650][ T9646]  ? lockdep_hardirqs_on+0x7a/0x110
[  455.702672][ T9646]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  455.702694][ T9646]  ? mutex_lock_nested+0x152/0x1d0
[  455.702718][ T9646]  ? fdget_pos+0x252/0x320
[  455.702749][ T9646]  ksys_read+0x156/0x270
[  455.702777][ T9646]  ? __pfx_ksys_read+0x10/0x10
[  455.702800][ T9646]  ? fdget+0x189/0x1f0
[  455.702828][ T9646]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  455.702869][ T9646]  do_syscall_64+0x15f/0xf80
[  455.702891][ T9646]  ? trace_irq_disable+0x3b/0x140
[  455.702909][ T9646]  ? clear_bhb_loop+0x40/0x90
[  455.702933][ T9646]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  455.702951][ T9646] RIP: 0033:0x7f9bf0b0814e
[  455.702969][ T9646] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  455.702985][ T9646] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  455.703005][ T9646] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  455.703019][ T9646] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  455.703031][ T9646] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  455.703042][ T9646] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  455.703054][ T9646] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  455.703085][ T9646]  </TASK>
[  455.751412][ T9647] FAULT_INJECTION: forcing a failure.
[  455.751412][ T9647] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  455.751433][ T9647] CPU: 1 UID: 0 PID: 9647 Comm: syz.2.797 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  455.751446][ T9647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  455.751453][ T9647] Call Trace:
[  455.751457][ T9647]  <TASK>
[  455.751462][ T9647]  dump_stack_lvl+0xe8/0x150
[  455.751483][ T9647]  should_fail_ex+0x46b/0x600
[  455.751502][ T9647]  _copy_to_user+0x31/0xb0
[  455.751516][ T9647]  simple_read_from_buffer+0xe1/0x170
[  455.751531][ T9647]  proc_fail_nth_read+0x1be/0x230
[  455.751547][ T9647]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  455.751561][ T9647]  ? rw_verify_area+0x2ac/0x4e0
[  455.751575][ T9647]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  455.751588][ T9647]  vfs_read+0x212/0xa80
[  455.751605][ T9647]  ? __pfx_vfs_read+0x10/0x10
[  455.751620][ T9647]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  455.751633][ T9647]  ? lockdep_hardirqs_on+0x7a/0x110
[  455.751645][ T9647]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  455.751657][ T9647]  ? mutex_lock_nested+0x152/0x1d0
[  455.751670][ T9647]  ? fdget_pos+0x252/0x320
[  455.751687][ T9647]  ksys_read+0x156/0x270
[  455.751702][ T9647]  ? __pfx_ksys_read+0x10/0x10
[  455.751715][ T9647]  ? fdget+0x189/0x1f0
[  455.751729][ T9647]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  455.751740][ T9647]  do_syscall_64+0x15f/0xf80
[  455.751753][ T9647]  ? clear_bhb_loop+0x40/0x90
[  455.751765][ T9647]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  455.751775][ T9647] RIP: 0033:0x7f0690b3814e
[  455.751786][ T9647] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  455.751794][ T9647] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  455.751806][ T9647] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  455.751813][ T9647] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  455.751819][ T9647] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  455.751826][ T9647] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  455.751832][ T9647] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  455.751848][ T9647]  </TASK>
[  455.834656][   T13] bridge_slave_0: left allmulticast mode
[  455.834683][   T13] bridge_slave_0: left promiscuous mode
[  455.834928][   T13] bridge0: port 1(bridge_slave_0) entered disabled state
[  457.124180][   T13] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[  457.181660][   T13] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[  457.202977][   T13] bond0 (unregistering): Released all slaves
[  457.780404][ T9653] FAULT_INJECTION: forcing a failure.
[  457.780404][ T9653] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  457.780437][ T9653] CPU: 0 UID: 0 PID: 9653 Comm: syz.0.798 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  457.780458][ T9653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  457.780471][ T9653] Call Trace:
[  457.780479][ T9653]  <TASK>
[  457.780487][ T9653]  dump_stack_lvl+0xe8/0x150
[  457.780522][ T9653]  should_fail_ex+0x46b/0x600
[  457.780556][ T9653]  _copy_to_user+0x31/0xb0
[  457.780581][ T9653]  simple_read_from_buffer+0xe1/0x170
[  457.780609][ T9653]  proc_fail_nth_read+0x1be/0x230
[  457.780636][ T9653]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  457.780662][ T9653]  ? rw_verify_area+0x2ac/0x4e0
[  457.780687][ T9653]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  457.780711][ T9653]  vfs_read+0x212/0xa80
[  457.780743][ T9653]  ? __pfx_vfs_read+0x10/0x10
[  457.780770][ T9653]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  457.780793][ T9653]  ? lockdep_hardirqs_on+0x7a/0x110
[  457.780814][ T9653]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  457.780836][ T9653]  ? mutex_lock_nested+0x152/0x1d0
[  457.780860][ T9653]  ? fdget_pos+0x252/0x320
[  457.780891][ T9653]  ksys_read+0x156/0x270
[  457.780917][ T9653]  ? __pfx_ksys_read+0x10/0x10
[  457.780941][ T9653]  ? fdget+0x189/0x1f0
[  457.780968][ T9653]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  457.780988][ T9653]  do_syscall_64+0x15f/0xf80
[  457.781009][ T9653]  ? trace_irq_disable+0x3b/0x140
[  457.781028][ T9653]  ? clear_bhb_loop+0x40/0x90
[  457.781051][ T9653]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  457.781069][ T9653] RIP: 0033:0x7f9acc22814e
[  457.781087][ T9653] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  457.781102][ T9653] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  457.781122][ T9653] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  457.781136][ T9653] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  457.781148][ T9653] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  457.781160][ T9653] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  457.781172][ T9653] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  457.781202][ T9653]  </TASK>
[  457.782241][ T9654] FAULT_INJECTION: forcing a failure.
[  457.782241][ T9654] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  457.782268][ T9654] CPU: 0 UID: 0 PID: 9654 Comm: syz.3.799 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  457.782289][ T9654] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  457.782300][ T9654] Call Trace:
[  457.782308][ T9654]  <TASK>
[  457.782316][ T9654]  dump_stack_lvl+0xe8/0x150
[  457.782346][ T9654]  should_fail_ex+0x46b/0x600
[  457.782379][ T9654]  _copy_to_user+0x31/0xb0
[  457.782403][ T9654]  simple_read_from_buffer+0xe1/0x170
[  457.782430][ T9654]  proc_fail_nth_read+0x1be/0x230
[  457.782456][ T9654]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  457.782482][ T9654]  ? rw_verify_area+0x2ac/0x4e0
[  457.782505][ T9654]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  457.782528][ T9654]  vfs_read+0x212/0xa80
[  457.782561][ T9654]  ? __pfx_vfs_read+0x10/0x10
[  457.782588][ T9654]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  457.782609][ T9654]  ? lockdep_hardirqs_on+0x7a/0x110
[  457.782631][ T9654]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  457.782652][ T9654]  ? mutex_lock_nested+0x152/0x1d0
[  457.782676][ T9654]  ? fdget_pos+0x252/0x320
[  457.782707][ T9654]  ksys_read+0x156/0x270
[  457.782733][ T9654]  ? __pfx_ksys_read+0x10/0x10
[  457.782758][ T9654]  ? fdget+0x189/0x1f0
[  457.782785][ T9654]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  457.782805][ T9654]  do_syscall_64+0x15f/0xf80
[  457.782825][ T9654]  ? trace_irq_disable+0x3b/0x140
[  457.782844][ T9654]  ? clear_bhb_loop+0x40/0x90
[  457.782867][ T9654]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  457.782884][ T9654] RIP: 0033:0x7f995607814e
[  457.782902][ T9654] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  457.782918][ T9654] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  457.782938][ T9654] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  457.782952][ T9654] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  457.782963][ T9654] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  457.782976][ T9654] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  457.782987][ T9654] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  457.783017][ T9654]  </TASK>
[  458.726594][ T9663] FAULT_INJECTION: forcing a failure.
[  458.726594][ T9663] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  458.726625][ T9663] CPU: 1 UID: 0 PID: 9663 Comm: syz.4.800 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  458.726648][ T9663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  458.726660][ T9663] Call Trace:
[  458.726667][ T9663]  <TASK>
[  458.726676][ T9663]  dump_stack_lvl+0xe8/0x150
[  458.726709][ T9663]  should_fail_ex+0x46b/0x600
[  458.726745][ T9663]  _copy_to_user+0x31/0xb0
[  458.726770][ T9663]  simple_read_from_buffer+0xe1/0x170
[  458.726798][ T9663]  proc_fail_nth_read+0x1be/0x230
[  458.726825][ T9663]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  458.726851][ T9663]  ? rw_verify_area+0x2ac/0x4e0
[  458.726875][ T9663]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  458.726898][ T9663]  vfs_read+0x212/0xa80
[  458.726931][ T9663]  ? __pfx_vfs_read+0x10/0x10
[  458.726958][ T9663]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  458.726981][ T9663]  ? lockdep_hardirqs_on+0x7a/0x110
[  458.727004][ T9663]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  458.727025][ T9663]  ? mutex_lock_nested+0x152/0x1d0
[  458.727049][ T9663]  ? fdget_pos+0x252/0x320
[  458.727080][ T9663]  ksys_read+0x156/0x270
[  458.727107][ T9663]  ? __pfx_ksys_read+0x10/0x10
[  458.727131][ T9663]  ? fdget+0x189/0x1f0
[  458.727165][ T9663]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  458.727186][ T9663]  do_syscall_64+0x15f/0xf80
[  458.727207][ T9663]  ? trace_irq_disable+0x3b/0x140
[  458.727226][ T9663]  ? clear_bhb_loop+0x40/0x90
[  458.727249][ T9663]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  458.727267][ T9663] RIP: 0033:0x7f9bf0b0814e
[  458.727285][ T9663] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  458.727302][ T9663] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  458.727321][ T9663] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  458.727336][ T9663] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  458.727347][ T9663] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  458.727359][ T9663] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  458.727371][ T9663] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  458.727402][ T9663]  </TASK>
[  458.731984][ T9664] FAULT_INJECTION: forcing a failure.
[  458.731984][ T9664] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  458.732014][ T9664] CPU: 0 UID: 0 PID: 9664 Comm: syz.2.801 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  458.732035][ T9664] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  458.732046][ T9664] Call Trace:
[  458.732054][ T9664]  <TASK>
[  458.732063][ T9664]  dump_stack_lvl+0xe8/0x150
[  458.732094][ T9664]  should_fail_ex+0x46b/0x600
[  458.732128][ T9664]  _copy_to_user+0x31/0xb0
[  458.732150][ T9664]  simple_read_from_buffer+0xe1/0x170
[  458.732172][ T9664]  proc_fail_nth_read+0x1be/0x230
[  458.732192][ T9664]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  458.732210][ T9664]  ? rw_verify_area+0x2ac/0x4e0
[  458.732228][ T9664]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  458.732245][ T9664]  vfs_read+0x212/0xa80
[  458.732268][ T9664]  ? __pfx_vfs_read+0x10/0x10
[  458.732287][ T9664]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  458.732303][ T9664]  ? lockdep_hardirqs_on+0x7a/0x110
[  458.732319][ T9664]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  458.732335][ T9664]  ? mutex_lock_nested+0x152/0x1d0
[  458.732352][ T9664]  ? fdget_pos+0x252/0x320
[  458.732374][ T9664]  ksys_read+0x156/0x270
[  458.732393][ T9664]  ? __pfx_ksys_read+0x10/0x10
[  458.732410][ T9664]  ? fdget+0x189/0x1f0
[  458.732429][ T9664]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  458.732444][ T9664]  do_syscall_64+0x15f/0xf80
[  458.732459][ T9664]  ? trace_irq_disable+0x3b/0x140
[  458.732474][ T9664]  ? clear_bhb_loop+0x40/0x90
[  458.732490][ T9664]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  458.732503][ T9664] RIP: 0033:0x7f0690b3814e
[  458.732516][ T9664] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  458.732527][ T9664] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  458.732543][ T9664] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  458.732555][ T9664] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  458.732565][ T9664] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  458.732578][ T9664] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  458.732587][ T9664] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  458.732610][ T9664]  </TASK>
[  459.059447][ T9666] FAULT_INJECTION: forcing a failure.
[  459.059447][ T9666] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  459.059482][ T9666] CPU: 1 UID: 0 PID: 9666 Comm: syz.0.802 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  459.059504][ T9666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  459.059515][ T9666] Call Trace:
[  459.059523][ T9666]  <TASK>
[  459.059531][ T9666]  dump_stack_lvl+0xe8/0x150
[  459.059564][ T9666]  should_fail_ex+0x46b/0x600
[  459.059598][ T9666]  _copy_to_user+0x31/0xb0
[  459.059649][ T9666]  simple_read_from_buffer+0xe1/0x170
[  459.059679][ T9666]  proc_fail_nth_read+0x1be/0x230
[  459.059721][ T9666]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  459.059752][ T9666]  ? rw_verify_area+0x2ac/0x4e0
[  459.059782][ T9666]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  459.059804][ T9666]  vfs_read+0x212/0xa80
[  459.059837][ T9666]  ? __pfx_vfs_read+0x10/0x10
[  459.059864][ T9666]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  459.059887][ T9666]  ? lockdep_hardirqs_on+0x7a/0x110
[  459.059909][ T9666]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  459.059930][ T9666]  ? mutex_lock_nested+0x152/0x1d0
[  459.059955][ T9666]  ? fdget_pos+0x252/0x320
[  459.059987][ T9666]  ksys_read+0x156/0x270
[  459.060014][ T9666]  ? __pfx_ksys_read+0x10/0x10
[  459.060044][ T9666]  ? fdget+0x189/0x1f0
[  459.060071][ T9666]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  459.060092][ T9666]  do_syscall_64+0x15f/0xf80
[  459.060112][ T9666]  ? trace_irq_disable+0x3b/0x140
2026/04/17 23:20:55 executed programs: 800
[  459.060132][ T9666]  ? clear_bhb_loop+0x40/0x90
[  459.060155][ T9666]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  459.060172][ T9666] RIP: 0033:0x7f9acc22814e
[  459.060190][ T9666] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  459.060206][ T9666] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  459.060226][ T9666] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  459.060240][ T9666] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  459.060252][ T9666] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  459.060264][ T9666] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  459.060275][ T9666] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  459.060307][ T9666]  </TASK>
[  459.082651][ T9667] FAULT_INJECTION: forcing a failure.
[  459.082651][ T9667] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  459.082681][ T9667] CPU: 0 UID: 0 PID: 9667 Comm: syz.3.803 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  459.082701][ T9667] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  459.082712][ T9667] Call Trace:
[  459.082720][ T9667]  <TASK>
[  459.082728][ T9667]  dump_stack_lvl+0xe8/0x150
[  459.082759][ T9667]  should_fail_ex+0x46b/0x600
[  459.082798][ T9667]  _copy_to_user+0x31/0xb0
[  459.082820][ T9667]  simple_read_from_buffer+0xe1/0x170
[  459.082845][ T9667]  proc_fail_nth_read+0x1be/0x230
[  459.082867][ T9667]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  459.082891][ T9667]  ? rw_verify_area+0x2ac/0x4e0
[  459.082915][ T9667]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  459.082937][ T9667]  vfs_read+0x212/0xa80
[  459.082962][ T9667]  ? __pfx_vfs_read+0x10/0x10
[  459.082981][ T9667]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  459.082998][ T9667]  ? lockdep_hardirqs_on+0x7a/0x110
[  459.083014][ T9667]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  459.083030][ T9667]  ? mutex_lock_nested+0x152/0x1d0
[  459.083050][ T9667]  ? fdget_pos+0x252/0x320
[  459.083074][ T9667]  ksys_read+0x156/0x270
[  459.083093][ T9667]  ? __pfx_ksys_read+0x10/0x10
[  459.083110][ T9667]  ? fdget+0x189/0x1f0
[  459.083129][ T9667]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  459.083145][ T9667]  do_syscall_64+0x15f/0xf80
[  459.083160][ T9667]  ? trace_irq_disable+0x3b/0x140
[  459.083174][ T9667]  ? clear_bhb_loop+0x40/0x90
[  459.083191][ T9667]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  459.083204][ T9667] RIP: 0033:0x7f995607814e
[  459.083217][ T9667] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  459.083229][ T9667] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  459.083244][ T9667] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  459.083255][ T9667] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  459.083263][ T9667] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  459.083272][ T9667] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  459.083281][ T9667] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  459.083304][ T9667]  </TASK>
[  460.414844][ T9677] FAULT_INJECTION: forcing a failure.
[  460.414844][ T9677] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  460.414877][ T9677] CPU: 0 UID: 0 PID: 9677 Comm: syz.2.804 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  460.414898][ T9677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  460.414909][ T9677] Call Trace:
[  460.414917][ T9677]  <TASK>
[  460.414926][ T9677]  dump_stack_lvl+0xe8/0x150
[  460.415013][ T9677]  should_fail_ex+0x46b/0x600
[  460.415047][ T9677]  _copy_to_user+0x31/0xb0
[  460.415072][ T9677]  simple_read_from_buffer+0xe1/0x170
[  460.415101][ T9677]  proc_fail_nth_read+0x1be/0x230
[  460.415144][ T9677]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  460.415171][ T9677]  ? rw_verify_area+0x2ac/0x4e0
[  460.415195][ T9677]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  460.415220][ T9677]  vfs_read+0x212/0xa80
[  460.415264][ T9677]  ? __pfx_vfs_read+0x10/0x10
[  460.415292][ T9677]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  460.415315][ T9677]  ? lockdep_hardirqs_on+0x7a/0x110
[  460.415337][ T9677]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  460.415358][ T9677]  ? mutex_lock_nested+0x152/0x1d0
[  460.415383][ T9677]  ? fdget_pos+0x252/0x320
[  460.415412][ T9677]  ksys_read+0x156/0x270
[  460.415439][ T9677]  ? __pfx_ksys_read+0x10/0x10
[  460.415464][ T9677]  ? fdget+0x189/0x1f0
[  460.415489][ T9677]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  460.415508][ T9677]  do_syscall_64+0x15f/0xf80
[  460.415527][ T9677]  ? trace_irq_disable+0x3b/0x140
[  460.415547][ T9677]  ? clear_bhb_loop+0x40/0x90
[  460.415569][ T9677]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  460.415587][ T9677] RIP: 0033:0x7f0690b3814e
[  460.415606][ T9677] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  460.415621][ T9677] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  460.415641][ T9677] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  460.415655][ T9677] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  460.415667][ T9677] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  460.415679][ T9677] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  460.415689][ T9677] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  460.415720][ T9677]  </TASK>
[  460.616224][ T9678] FAULT_INJECTION: forcing a failure.
[  460.616224][ T9678] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  460.616257][ T9678] CPU: 0 UID: 0 PID: 9678 Comm: syz.4.805 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  460.616279][ T9678] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  460.616291][ T9678] Call Trace:
[  460.616299][ T9678]  <TASK>
[  460.616307][ T9678]  dump_stack_lvl+0xe8/0x150
[  460.616340][ T9678]  should_fail_ex+0x46b/0x600
[  460.616390][ T9678]  _copy_to_user+0x31/0xb0
[  460.616411][ T9678]  simple_read_from_buffer+0xe1/0x170
[  460.616436][ T9678]  proc_fail_nth_read+0x1be/0x230
[  460.616463][ T9678]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  460.616489][ T9678]  ? rw_verify_area+0x2ac/0x4e0
[  460.616513][ T9678]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  460.616537][ T9678]  vfs_read+0x212/0xa80
[  460.616570][ T9678]  ? __pfx_vfs_read+0x10/0x10
[  460.616598][ T9678]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  460.616621][ T9678]  ? lockdep_hardirqs_on+0x7a/0x110
[  460.616643][ T9678]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  460.616664][ T9678]  ? mutex_lock_nested+0x152/0x1d0
[  460.616687][ T9678]  ? fdget_pos+0x252/0x320
[  460.616717][ T9678]  ksys_read+0x156/0x270
[  460.616745][ T9678]  ? __pfx_ksys_read+0x10/0x10
[  460.616769][ T9678]  ? fdget+0x189/0x1f0
[  460.616796][ T9678]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  460.616817][ T9678]  do_syscall_64+0x15f/0xf80
[  460.616837][ T9678]  ? trace_irq_disable+0x3b/0x140
[  460.616855][ T9678]  ? clear_bhb_loop+0x40/0x90
[  460.616877][ T9678]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  460.616895][ T9678] RIP: 0033:0x7f9bf0b0814e
[  460.616914][ T9678] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  460.616937][ T9678] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  460.616957][ T9678] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  460.616971][ T9678] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  460.616990][ T9678] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  460.617003][ T9678] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  460.617014][ T9678] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  460.617045][ T9678]  </TASK>
[  460.619584][ T9679] FAULT_INJECTION: forcing a failure.
[  460.619584][ T9679] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  460.619614][ T9679] CPU: 0 UID: 0 PID: 9679 Comm: syz.3.806 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  460.619636][ T9679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  460.619647][ T9679] Call Trace:
[  460.619655][ T9679]  <TASK>
[  460.619664][ T9679]  dump_stack_lvl+0xe8/0x150
[  460.619695][ T9679]  should_fail_ex+0x46b/0x600
[  460.619730][ T9679]  _copy_to_user+0x31/0xb0
[  460.619755][ T9679]  simple_read_from_buffer+0xe1/0x170
[  460.619783][ T9679]  proc_fail_nth_read+0x1be/0x230
[  460.619810][ T9679]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  460.619836][ T9679]  ? rw_verify_area+0x2ac/0x4e0
[  460.619860][ T9679]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  460.619884][ T9679]  vfs_read+0x212/0xa80
[  460.619917][ T9679]  ? __pfx_vfs_read+0x10/0x10
[  460.619952][ T9679]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  460.619974][ T9679]  ? lockdep_hardirqs_on+0x7a/0x110
[  460.619996][ T9679]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  460.620018][ T9679]  ? mutex_lock_nested+0x152/0x1d0
[  460.620042][ T9679]  ? fdget_pos+0x252/0x320
[  460.620073][ T9679]  ksys_read+0x156/0x270
[  460.620100][ T9679]  ? __pfx_ksys_read+0x10/0x10
[  460.620124][ T9679]  ? fdget+0x189/0x1f0
[  460.620151][ T9679]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  460.620172][ T9679]  do_syscall_64+0x15f/0xf80
[  460.620192][ T9679]  ? trace_irq_disable+0x3b/0x140
[  460.620212][ T9679]  ? clear_bhb_loop+0x40/0x90
[  460.620234][ T9679]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  460.620252][ T9679] RIP: 0033:0x7f995607814e
[  460.620270][ T9679] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  460.620286][ T9679] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  460.620306][ T9679] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  460.620321][ T9679] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  460.620332][ T9679] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  460.620344][ T9679] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  460.620356][ T9679] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  460.620387][ T9679]  </TASK>
[  460.853166][ T9680] FAULT_INJECTION: forcing a failure.
[  460.853166][ T9680] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  460.853200][ T9680] CPU: 0 UID: 0 PID: 9680 Comm: syz.0.807 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  460.853222][ T9680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  460.853234][ T9680] Call Trace:
[  460.853242][ T9680]  <TASK>
[  460.853251][ T9680]  dump_stack_lvl+0xe8/0x150
[  460.853283][ T9680]  should_fail_ex+0x46b/0x600
[  460.853318][ T9680]  _copy_to_user+0x31/0xb0
[  460.853343][ T9680]  simple_read_from_buffer+0xe1/0x170
[  460.853371][ T9680]  proc_fail_nth_read+0x1be/0x230
[  460.853398][ T9680]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  460.853424][ T9680]  ? rw_verify_area+0x2ac/0x4e0
[  460.853448][ T9680]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  460.853472][ T9680]  vfs_read+0x212/0xa80
[  460.853504][ T9680]  ? __pfx_vfs_read+0x10/0x10
[  460.853531][ T9680]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  460.853553][ T9680]  ? lockdep_hardirqs_on+0x7a/0x110
[  460.853575][ T9680]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  460.853595][ T9680]  ? mutex_lock_nested+0x152/0x1d0
[  460.853619][ T9680]  ? fdget_pos+0x252/0x320
[  460.853650][ T9680]  ksys_read+0x156/0x270
[  460.853676][ T9680]  ? __pfx_ksys_read+0x10/0x10
[  460.853701][ T9680]  ? fdget+0x189/0x1f0
[  460.853727][ T9680]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  460.853748][ T9680]  do_syscall_64+0x15f/0xf80
[  460.853768][ T9680]  ? trace_irq_disable+0x3b/0x140
[  460.853787][ T9680]  ? clear_bhb_loop+0x40/0x90
[  460.853809][ T9680]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  460.853827][ T9680] RIP: 0033:0x7f9acc22814e
[  460.853851][ T9680] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  460.853867][ T9680] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  460.853887][ T9680] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  460.853901][ T9680] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  460.853913][ T9680] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  460.853924][ T9680] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  460.853935][ T9680] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  460.853966][ T9680]  </TASK>
[  461.754420][ T9685] FAULT_INJECTION: forcing a failure.
[  461.754420][ T9685] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  461.754454][ T9685] CPU: 1 UID: 0 PID: 9685 Comm: syz.4.809 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  461.754476][ T9685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  461.754488][ T9685] Call Trace:
[  461.754496][ T9685]  <TASK>
[  461.754513][ T9685]  dump_stack_lvl+0xe8/0x150
[  461.754546][ T9685]  should_fail_ex+0x46b/0x600
[  461.754581][ T9685]  _copy_to_user+0x31/0xb0
[  461.754606][ T9685]  simple_read_from_buffer+0xe1/0x170
[  461.754634][ T9685]  proc_fail_nth_read+0x1be/0x230
[  461.754660][ T9685]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  461.754685][ T9685]  ? rw_verify_area+0x2ac/0x4e0
[  461.754710][ T9685]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  461.754734][ T9685]  vfs_read+0x212/0xa80
[  461.754765][ T9685]  ? __pfx_vfs_read+0x10/0x10
[  461.754792][ T9685]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  461.754815][ T9685]  ? lockdep_hardirqs_on+0x7a/0x110
[  461.754837][ T9685]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  461.754858][ T9685]  ? mutex_lock_nested+0x152/0x1d0
[  461.754883][ T9685]  ? fdget_pos+0x252/0x320
[  461.754913][ T9685]  ksys_read+0x156/0x270
[  461.754940][ T9685]  ? __pfx_ksys_read+0x10/0x10
[  461.754965][ T9685]  ? fdget+0x189/0x1f0
[  461.754992][ T9685]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  461.755012][ T9685]  do_syscall_64+0x15f/0xf80
[  461.755033][ T9685]  ? trace_irq_disable+0x3b/0x140
[  461.755052][ T9685]  ? clear_bhb_loop+0x40/0x90
[  461.755074][ T9685]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  461.755092][ T9685] RIP: 0033:0x7f9bf0b0814e
[  461.755110][ T9685] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  461.755126][ T9685] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  461.755146][ T9685] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  461.755160][ T9685] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  461.755172][ T9685] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  461.755183][ T9685] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  461.755195][ T9685] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  461.755226][ T9685]  </TASK>
[  461.842105][ T9686] FAULT_INJECTION: forcing a failure.
[  461.842105][ T9686] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  461.842136][ T9686] CPU: 0 UID: 0 PID: 9686 Comm: syz.2.808 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  461.842156][ T9686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  461.842168][ T9686] Call Trace:
[  461.842175][ T9686]  <TASK>
[  461.842183][ T9686]  dump_stack_lvl+0xe8/0x150
[  461.842214][ T9686]  should_fail_ex+0x46b/0x600
[  461.842247][ T9686]  _copy_to_user+0x31/0xb0
[  461.842271][ T9686]  simple_read_from_buffer+0xe1/0x170
[  461.842296][ T9686]  proc_fail_nth_read+0x1be/0x230
[  461.842322][ T9686]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  461.842345][ T9686]  ? rw_verify_area+0x2ac/0x4e0
[  461.842369][ T9686]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  461.842391][ T9686]  vfs_read+0x212/0xa80
[  461.842423][ T9686]  ? __pfx_vfs_read+0x10/0x10
[  461.842447][ T9686]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  461.842469][ T9686]  ? lockdep_hardirqs_on+0x7a/0x110
[  461.842490][ T9686]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  461.842509][ T9686]  ? mutex_lock_nested+0x152/0x1d0
[  461.842533][ T9686]  ? fdget_pos+0x252/0x320
[  461.842562][ T9686]  ksys_read+0x156/0x270
[  461.842588][ T9686]  ? __pfx_ksys_read+0x10/0x10
[  461.842610][ T9686]  ? fdget+0x189/0x1f0
[  461.842636][ T9686]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  461.842655][ T9686]  do_syscall_64+0x15f/0xf80
[  461.842675][ T9686]  ? trace_irq_disable+0x3b/0x140
[  461.842693][ T9686]  ? clear_bhb_loop+0x40/0x90
[  461.842713][ T9686]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  461.842730][ T9686] RIP: 0033:0x7f0690b3814e
[  461.842754][ T9686] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  461.842769][ T9686] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  461.842789][ T9686] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  461.842802][ T9686] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  461.842813][ T9686] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  461.842824][ T9686] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  461.842835][ T9686] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  461.842865][ T9686]  </TASK>
[  462.324682][ T9693] FAULT_INJECTION: forcing a failure.
[  462.324682][ T9693] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  462.324723][ T9693] CPU: 0 UID: 0 PID: 9693 Comm: syz.0.811 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  462.324745][ T9693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  462.324757][ T9693] Call Trace:
[  462.324764][ T9693]  <TASK>
[  462.324773][ T9693]  dump_stack_lvl+0xe8/0x150
[  462.324807][ T9693]  should_fail_ex+0x46b/0x600
[  462.324841][ T9693]  _copy_to_user+0x31/0xb0
[  462.324866][ T9693]  simple_read_from_buffer+0xe1/0x170
[  462.324894][ T9693]  proc_fail_nth_read+0x1be/0x230
[  462.324920][ T9693]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  462.324946][ T9693]  ? rw_verify_area+0x2ac/0x4e0
[  462.324970][ T9693]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  462.324994][ T9693]  vfs_read+0x212/0xa80
[  462.325027][ T9693]  ? __pfx_vfs_read+0x10/0x10
[  462.325054][ T9693]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  462.325077][ T9693]  ? lockdep_hardirqs_on+0x7a/0x110
[  462.325099][ T9693]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  462.325120][ T9693]  ? mutex_lock_nested+0x152/0x1d0
[  462.325145][ T9693]  ? fdget_pos+0x252/0x320
[  462.325176][ T9693]  ksys_read+0x156/0x270
[  462.325203][ T9693]  ? __pfx_ksys_read+0x10/0x10
[  462.325228][ T9693]  ? fdget+0x189/0x1f0
[  462.325255][ T9693]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  462.325275][ T9693]  do_syscall_64+0x15f/0xf80
[  462.325296][ T9693]  ? trace_irq_disable+0x3b/0x140
[  462.325315][ T9693]  ? clear_bhb_loop+0x40/0x90
[  462.325337][ T9693]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  462.325355][ T9693] RIP: 0033:0x7f9acc22814e
[  462.325373][ T9693] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  462.325389][ T9693] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  462.325409][ T9693] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  462.325423][ T9693] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  462.325434][ T9693] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  462.325445][ T9693] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  462.325457][ T9693] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  462.325488][ T9693]  </TASK>
[  462.517526][ T9697] FAULT_INJECTION: forcing a failure.
[  462.517526][ T9697] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  462.517559][ T9697] CPU: 0 UID: 0 PID: 9697 Comm: syz.3.810 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  462.517580][ T9697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  462.517592][ T9697] Call Trace:
[  462.517600][ T9697]  <TASK>
[  462.517608][ T9697]  dump_stack_lvl+0xe8/0x150
[  462.517640][ T9697]  should_fail_ex+0x46b/0x600
[  462.517675][ T9697]  _copy_to_user+0x31/0xb0
[  462.517699][ T9697]  simple_read_from_buffer+0xe1/0x170
[  462.517737][ T9697]  proc_fail_nth_read+0x1be/0x230
[  462.517763][ T9697]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  462.517789][ T9697]  ? rw_verify_area+0x2ac/0x4e0
[  462.517814][ T9697]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  462.517838][ T9697]  vfs_read+0x212/0xa80
[  462.517870][ T9697]  ? __pfx_vfs_read+0x10/0x10
[  462.517897][ T9697]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  462.517920][ T9697]  ? lockdep_hardirqs_on+0x7a/0x110
[  462.517942][ T9697]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  462.517963][ T9697]  ? mutex_lock_nested+0x152/0x1d0
[  462.517997][ T9697]  ? fdget_pos+0x252/0x320
[  462.518028][ T9697]  ksys_read+0x156/0x270
[  462.518056][ T9697]  ? __pfx_ksys_read+0x10/0x10
[  462.518079][ T9697]  ? fdget+0x189/0x1f0
[  462.518106][ T9697]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  462.518127][ T9697]  do_syscall_64+0x15f/0xf80
[  462.518148][ T9697]  ? trace_irq_disable+0x3b/0x140
[  462.518167][ T9697]  ? clear_bhb_loop+0x40/0x90
[  462.518189][ T9697]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  462.518208][ T9697] RIP: 0033:0x7f995607814e
[  462.518225][ T9697] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  462.518241][ T9697] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  462.518262][ T9697] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  462.518276][ T9697] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  462.518287][ T9697] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  462.518299][ T9697] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  462.518311][ T9697] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  462.518342][ T9697]  </TASK>
[  462.965654][ T9695] FAULT_INJECTION: forcing a failure.
[  462.965654][ T9695] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  462.965676][ T9695] CPU: 1 UID: 0 PID: 9695 Comm: syz.4.812 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  462.965688][ T9695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  462.965695][ T9695] Call Trace:
[  462.965700][ T9695]  <TASK>
[  462.965705][ T9695]  dump_stack_lvl+0xe8/0x150
[  462.965726][ T9695]  should_fail_ex+0x46b/0x600
[  462.965745][ T9695]  _copy_to_user+0x31/0xb0
[  462.965759][ T9695]  simple_read_from_buffer+0xe1/0x170
[  462.965779][ T9695]  proc_fail_nth_read+0x1be/0x230
[  462.965795][ T9695]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  462.965809][ T9695]  ? rw_verify_area+0x2ac/0x4e0
[  462.965823][ T9695]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  462.965836][ T9695]  vfs_read+0x212/0xa80
[  462.965853][ T9695]  ? __pfx_vfs_read+0x10/0x10
[  462.965868][ T9695]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  462.965881][ T9695]  ? lockdep_hardirqs_on+0x7a/0x110
[  462.965893][ T9695]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  462.965905][ T9695]  ? mutex_lock_nested+0x152/0x1d0
[  462.965918][ T9695]  ? fdget_pos+0x252/0x320
[  462.965935][ T9695]  ksys_read+0x156/0x270
[  462.965950][ T9695]  ? __pfx_ksys_read+0x10/0x10
[  462.965963][ T9695]  ? fdget+0x189/0x1f0
[  462.965977][ T9695]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  462.965989][ T9695]  do_syscall_64+0x15f/0xf80
[  462.966000][ T9695]  ? trace_irq_disable+0x3b/0x140
[  462.966011][ T9695]  ? clear_bhb_loop+0x40/0x90
[  462.966023][ T9695]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  462.966033][ T9695] RIP: 0033:0x7f9bf0b0814e
[  462.966044][ T9695] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  462.966052][ T9695] RSP: 002b:00007f9befdbdfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  462.966064][ T9695] RAX: ffffffffffffffda RBX: 00007f9befdbe6c0 RCX: 00007f9bf0b0814e
[  462.966072][ T9695] RDX: 000000000000000f RSI: 00007f9befdbe0a0 RDI: 0000000000000005
[  462.966078][ T9695] RBP: 00007f9befdbe090 R08: 0000000000000000 R09: 0000000000000000
[  462.966084][ T9695] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  462.966090][ T9695] R13: 0000000000000000 R14: 00007f9bf0d15f80 R15: 00007ffe3fcfe498
[  462.966106][ T9695]  </TASK>
[  463.551368][ T9705] FAULT_INJECTION: forcing a failure.
[  463.551368][ T9705] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  463.551485][ T9705] CPU: 1 UID: 0 PID: 9705 Comm: syz.0.814 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  463.551507][ T9705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  463.551519][ T9705] Call Trace:
[  463.551527][ T9705]  <TASK>
[  463.551536][ T9705]  dump_stack_lvl+0xe8/0x150
[  463.551568][ T9705]  should_fail_ex+0x46b/0x600
[  463.551603][ T9705]  _copy_to_user+0x31/0xb0
[  463.551628][ T9705]  simple_read_from_buffer+0xe1/0x170
[  463.551655][ T9705]  proc_fail_nth_read+0x1be/0x230
[  463.551682][ T9705]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  463.551707][ T9705]  ? rw_verify_area+0x2ac/0x4e0
[  463.551732][ T9705]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  463.551757][ T9705]  vfs_read+0x212/0xa80
[  463.551790][ T9705]  ? __pfx_vfs_read+0x10/0x10
[  463.551817][ T9705]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  463.551840][ T9705]  ? lockdep_hardirqs_on+0x7a/0x110
[  463.551861][ T9705]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  463.551882][ T9705]  ? mutex_lock_nested+0x152/0x1d0
[  463.551908][ T9705]  ? fdget_pos+0x252/0x320
[  463.551938][ T9705]  ksys_read+0x156/0x270
[  463.551973][ T9705]  ? __pfx_ksys_read+0x10/0x10
[  463.552001][ T9705]  ? fdget+0x189/0x1f0
[  463.552028][ T9705]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  463.552048][ T9705]  do_syscall_64+0x15f/0xf80
[  463.552070][ T9705]  ? trace_irq_disable+0x3b/0x140
[  463.552089][ T9705]  ? clear_bhb_loop+0x40/0x90
[  463.552111][ T9705]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  463.552129][ T9705] RIP: 0033:0x7f9acc22814e
[  463.552147][ T9705] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  463.552163][ T9705] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  463.552184][ T9705] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  463.552197][ T9705] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  463.552209][ T9705] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  463.552221][ T9705] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  463.552233][ T9705] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  463.552265][ T9705]  </TASK>
[  463.639050][ T9706] FAULT_INJECTION: forcing a failure.
[  463.639050][ T9706] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  463.639083][ T9706] CPU: 0 UID: 0 PID: 9706 Comm: syz.2.813 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  463.639103][ T9706] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  463.639115][ T9706] Call Trace:
[  463.639122][ T9706]  <TASK>
[  463.639130][ T9706]  dump_stack_lvl+0xe8/0x150
[  463.639163][ T9706]  should_fail_ex+0x46b/0x600
[  463.639195][ T9706]  _copy_to_user+0x31/0xb0
[  463.639218][ T9706]  simple_read_from_buffer+0xe1/0x170
[  463.639246][ T9706]  proc_fail_nth_read+0x1be/0x230
[  463.639270][ T9706]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  463.639295][ T9706]  ? rw_verify_area+0x2ac/0x4e0
[  463.639318][ T9706]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  463.639341][ T9706]  vfs_read+0x212/0xa80
[  463.639373][ T9706]  ? __pfx_vfs_read+0x10/0x10
[  463.639406][ T9706]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  463.639429][ T9706]  ? lockdep_hardirqs_on+0x7a/0x110
[  463.639450][ T9706]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  463.639470][ T9706]  ? mutex_lock_nested+0x152/0x1d0
[  463.639494][ T9706]  ? fdget_pos+0x252/0x320
[  463.639522][ T9706]  ksys_read+0x156/0x270
[  463.639548][ T9706]  ? __pfx_ksys_read+0x10/0x10
[  463.639571][ T9706]  ? fdget+0x189/0x1f0
[  463.639597][ T9706]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  463.639616][ T9706]  do_syscall_64+0x15f/0xf80
[  463.639636][ T9706]  ? trace_irq_disable+0x3b/0x140
[  463.639652][ T9706]  ? clear_bhb_loop+0x40/0x90
[  463.639675][ T9706]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  463.639692][ T9706] RIP: 0033:0x7f0690b3814e
[  463.639709][ T9706] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  463.639725][ T9706] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  463.639743][ T9706] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  463.639755][ T9706] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  463.639766][ T9706] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  463.639778][ T9706] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  463.639789][ T9706] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  463.639819][ T9706]  </TASK>
[  464.608759][ T9724] FAULT_INJECTION: forcing a failure.
[  464.608759][ T9724] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  464.608792][ T9724] CPU: 1 UID: 0 PID: 9724 Comm: syz.3.815 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  464.608814][ T9724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  464.608826][ T9724] Call Trace:
[  464.608834][ T9724]  <TASK>
[  464.608842][ T9724]  dump_stack_lvl+0xe8/0x150
[  464.608876][ T9724]  should_fail_ex+0x46b/0x600
[  464.608911][ T9724]  _copy_to_user+0x31/0xb0
[  464.608935][ T9724]  simple_read_from_buffer+0xe1/0x170
[  464.608964][ T9724]  proc_fail_nth_read+0x1be/0x230
[  464.608991][ T9724]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  464.609017][ T9724]  ? rw_verify_area+0x2ac/0x4e0
[  464.609042][ T9724]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  464.609066][ T9724]  vfs_read+0x212/0xa80
[  464.609099][ T9724]  ? __pfx_vfs_read+0x10/0x10
[  464.609126][ T9724]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  464.609149][ T9724]  ? lockdep_hardirqs_on+0x7a/0x110
[  464.609170][ T9724]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  464.609192][ T9724]  ? mutex_lock_nested+0x152/0x1d0
[  464.609216][ T9724]  ? fdget_pos+0x252/0x320
[  464.609247][ T9724]  ksys_read+0x156/0x270
[  464.609274][ T9724]  ? __pfx_ksys_read+0x10/0x10
[  464.609299][ T9724]  ? fdget+0x189/0x1f0
[  464.609333][ T9724]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  464.609353][ T9724]  do_syscall_64+0x15f/0xf80
[  464.609375][ T9724]  ? trace_irq_disable+0x3b/0x140
[  464.609394][ T9724]  ? clear_bhb_loop+0x40/0x90
[  464.609416][ T9724]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  464.609435][ T9724] RIP: 0033:0x7f995607814e
[  464.609452][ T9724] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  464.609468][ T9724] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  464.609488][ T9724] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  464.609502][ T9724] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  464.609513][ T9724] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  464.609525][ T9724] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  464.609537][ T9724] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  464.609568][ T9724]  </TASK>
[  464.755063][ T9725] FAULT_INJECTION: forcing a failure.
[  464.755063][ T9725] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  464.755097][ T9725] CPU: 0 UID: 0 PID: 9725 Comm: syz.0.816 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  464.755117][ T9725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  464.755130][ T9725] Call Trace:
[  464.755137][ T9725]  <TASK>
[  464.755145][ T9725]  dump_stack_lvl+0xe8/0x150
[  464.755176][ T9725]  should_fail_ex+0x46b/0x600
[  464.755208][ T9725]  _copy_to_user+0x31/0xb0
[  464.755232][ T9725]  simple_read_from_buffer+0xe1/0x170
[  464.755266][ T9725]  proc_fail_nth_read+0x1be/0x230
[  464.755291][ T9725]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  464.755315][ T9725]  ? rw_verify_area+0x2ac/0x4e0
[  464.755339][ T9725]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  464.755362][ T9725]  vfs_read+0x212/0xa80
[  464.755393][ T9725]  ? __pfx_vfs_read+0x10/0x10
[  464.755418][ T9725]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  464.755440][ T9725]  ? lockdep_hardirqs_on+0x7a/0x110
[  464.755461][ T9725]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  464.755481][ T9725]  ? mutex_lock_nested+0x152/0x1d0
[  464.755503][ T9725]  ? fdget_pos+0x252/0x320
[  464.755531][ T9725]  ksys_read+0x156/0x270
[  464.755558][ T9725]  ? __pfx_ksys_read+0x10/0x10
[  464.755581][ T9725]  ? fdget+0x189/0x1f0
[  464.755606][ T9725]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  464.755625][ T9725]  do_syscall_64+0x15f/0xf80
[  464.755646][ T9725]  ? trace_irq_disable+0x3b/0x140
[  464.755664][ T9725]  ? clear_bhb_loop+0x40/0x90
[  464.755686][ T9725]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  464.755703][ T9725] RIP: 0033:0x7f9acc22814e
[  464.755721][ T9725] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  464.755736][ T9725] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  464.755756][ T9725] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  464.755769][ T9725] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  464.755780][ T9725] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  464.755792][ T9725] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  464.755803][ T9725] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  464.755832][ T9725]  </TASK>
[  464.763878][   T13] hsr_slave_0: left promiscuous mode
[  465.046675][   T13] hsr_slave_1: left promiscuous mode
[  465.047748][   T13] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  465.047773][   T13] batman_adv: batadv0: Removing interface: batadv_slave_0
[  465.148164][   T13] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  465.148198][   T13] batman_adv: batadv0: Removing interface: batadv_slave_1
[  465.245949][   T13] veth1_macvtap: left promiscuous mode
[  465.246061][   T13] veth0_macvtap: left promiscuous mode
[  465.246327][   T13] veth1_vlan: left promiscuous mode
[  465.251972][   T13] veth0_vlan: left promiscuous mode
[  465.336564][ T9733] FAULT_INJECTION: forcing a failure.
[  465.336564][ T9733] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  465.336595][ T9733] CPU: 0 UID: 0 PID: 9733 Comm: syz.4.818 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  465.336617][ T9733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  465.336629][ T9733] Call Trace:
[  465.336637][ T9733]  <TASK>
[  465.336645][ T9733]  dump_stack_lvl+0xe8/0x150
[  465.336678][ T9733]  should_fail_ex+0x46b/0x600
[  465.336712][ T9733]  _copy_to_user+0x31/0xb0
[  465.336737][ T9733]  simple_read_from_buffer+0xe1/0x170
[  465.336766][ T9733]  proc_fail_nth_read+0x1be/0x230
[  465.336793][ T9733]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  465.336819][ T9733]  ? rw_verify_area+0x2ac/0x4e0
[  465.336843][ T9733]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  465.336867][ T9733]  vfs_read+0x212/0xa80
[  465.336899][ T9733]  ? __pfx_vfs_read+0x10/0x10
[  465.336926][ T9733]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  465.336948][ T9733]  ? lockdep_hardirqs_on+0x7a/0x110
[  465.336970][ T9733]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  465.336991][ T9733]  ? mutex_lock_nested+0x152/0x1d0
[  465.337016][ T9733]  ? fdget_pos+0x252/0x320
[  465.337047][ T9733]  ksys_read+0x156/0x270
[  465.337074][ T9733]  ? __pfx_ksys_read+0x10/0x10
[  465.337099][ T9733]  ? fdget+0x189/0x1f0
[  465.337126][ T9733]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  465.337146][ T9733]  do_syscall_64+0x15f/0xf80
[  465.337167][ T9733]  ? trace_irq_disable+0x3b/0x140
[  465.337193][ T9733]  ? clear_bhb_loop+0x40/0x90
[  465.337217][ T9733]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  465.337241][ T9733] RIP: 0033:0x7f9bf0b0814e
[  465.337259][ T9733] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  465.337274][ T9733] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  465.337299][ T9733] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  465.337313][ T9733] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  465.337326][ T9733] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  465.337337][ T9733] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
2026/04/17 23:21:00 executed programs: 813
[  465.337348][ T9733] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  465.337379][ T9733]  </TASK>
[  465.581197][ T9735] FAULT_INJECTION: forcing a failure.
[  465.581197][ T9735] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  465.581236][ T9735] CPU: 0 UID: 0 PID: 9735 Comm: syz.2.817 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  465.581257][ T9735] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  465.581269][ T9735] Call Trace:
[  465.581276][ T9735]  <TASK>
[  465.581284][ T9735]  dump_stack_lvl+0xe8/0x150
[  465.581316][ T9735]  should_fail_ex+0x46b/0x600
[  465.581350][ T9735]  _copy_to_user+0x31/0xb0
[  465.581374][ T9735]  simple_read_from_buffer+0xe1/0x170
[  465.581401][ T9735]  proc_fail_nth_read+0x1be/0x230
[  465.581428][ T9735]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  465.581454][ T9735]  ? rw_verify_area+0x2ac/0x4e0
[  465.581477][ T9735]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  465.581501][ T9735]  vfs_read+0x212/0xa80
[  465.581533][ T9735]  ? __pfx_vfs_read+0x10/0x10
[  465.581561][ T9735]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  465.581583][ T9735]  ? lockdep_hardirqs_on+0x7a/0x110
[  465.581604][ T9735]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  465.581625][ T9735]  ? mutex_lock_nested+0x152/0x1d0
[  465.581650][ T9735]  ? fdget_pos+0x252/0x320
[  465.581681][ T9735]  ksys_read+0x156/0x270
[  465.581707][ T9735]  ? __pfx_ksys_read+0x10/0x10
[  465.581732][ T9735]  ? fdget+0x189/0x1f0
[  465.581760][ T9735]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  465.581780][ T9735]  do_syscall_64+0x15f/0xf80
[  465.581800][ T9735]  ? trace_irq_disable+0x3b/0x140
[  465.581820][ T9735]  ? clear_bhb_loop+0x40/0x90
[  465.581843][ T9735]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  465.581861][ T9735] RIP: 0033:0x7f0690b3814e
[  465.581879][ T9735] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  465.581896][ T9735] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  465.581916][ T9735] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  465.581930][ T9735] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  465.581943][ T9735] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  465.581955][ T9735] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  465.581966][ T9735] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  465.581997][ T9735]  </TASK>
[  466.239699][ T9743] FAULT_INJECTION: forcing a failure.
[  466.239699][ T9743] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  466.239732][ T9743] CPU: 0 UID: 0 PID: 9743 Comm: syz.0.820 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  466.239753][ T9743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  466.239765][ T9743] Call Trace:
[  466.239772][ T9743]  <TASK>
[  466.239781][ T9743]  dump_stack_lvl+0xe8/0x150
[  466.239815][ T9743]  should_fail_ex+0x46b/0x600
[  466.239849][ T9743]  _copy_to_user+0x31/0xb0
[  466.239874][ T9743]  simple_read_from_buffer+0xe1/0x170
[  466.239902][ T9743]  proc_fail_nth_read+0x1be/0x230
[  466.239928][ T9743]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  466.239955][ T9743]  ? rw_verify_area+0x2ac/0x4e0
[  466.239980][ T9743]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  466.240003][ T9743]  vfs_read+0x212/0xa80
[  466.240037][ T9743]  ? __pfx_vfs_read+0x10/0x10
[  466.240071][ T9743]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  466.240094][ T9743]  ? lockdep_hardirqs_on+0x7a/0x110
[  466.240116][ T9743]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  466.240137][ T9743]  ? mutex_lock_nested+0x152/0x1d0
[  466.240163][ T9743]  ? fdget_pos+0x252/0x320
[  466.240193][ T9743]  ksys_read+0x156/0x270
[  466.240220][ T9743]  ? __pfx_ksys_read+0x10/0x10
[  466.240245][ T9743]  ? fdget+0x189/0x1f0
[  466.240273][ T9743]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  466.240293][ T9743]  do_syscall_64+0x15f/0xf80
[  466.240313][ T9743]  ? trace_irq_disable+0x3b/0x140
[  466.240333][ T9743]  ? clear_bhb_loop+0x40/0x90
[  466.240356][ T9743]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  466.240374][ T9743] RIP: 0033:0x7f9acc22814e
[  466.240392][ T9743] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  466.240409][ T9743] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  466.240429][ T9743] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  466.240443][ T9743] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  466.240455][ T9743] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  466.240467][ T9743] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  466.240478][ T9743] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  466.240509][ T9743]  </TASK>
[  466.422516][ T9744] FAULT_INJECTION: forcing a failure.
[  466.422516][ T9744] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  466.422549][ T9744] CPU: 0 UID: 0 PID: 9744 Comm: syz.3.819 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  466.422577][ T9744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  466.422589][ T9744] Call Trace:
[  466.422597][ T9744]  <TASK>
[  466.422605][ T9744]  dump_stack_lvl+0xe8/0x150
[  466.422639][ T9744]  should_fail_ex+0x46b/0x600
[  466.422674][ T9744]  _copy_to_user+0x31/0xb0
[  466.422699][ T9744]  simple_read_from_buffer+0xe1/0x170
[  466.422727][ T9744]  proc_fail_nth_read+0x1be/0x230
[  466.422754][ T9744]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  466.422781][ T9744]  ? rw_verify_area+0x2ac/0x4e0
[  466.422805][ T9744]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  466.422829][ T9744]  vfs_read+0x212/0xa80
[  466.422862][ T9744]  ? __pfx_vfs_read+0x10/0x10
[  466.422894][ T9744]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  466.422921][ T9744]  ? lockdep_hardirqs_on+0x7a/0x110
[  466.422943][ T9744]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  466.422964][ T9744]  ? mutex_lock_nested+0x152/0x1d0
[  466.422993][ T9744]  ? fdget_pos+0x252/0x320
[  466.423043][ T9744]  ksys_read+0x156/0x270
[  466.423070][ T9744]  ? __pfx_ksys_read+0x10/0x10
[  466.423095][ T9744]  ? fdget+0x189/0x1f0
[  466.423122][ T9744]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  466.423142][ T9744]  do_syscall_64+0x15f/0xf80
[  466.423163][ T9744]  ? trace_irq_disable+0x3b/0x140
[  466.423182][ T9744]  ? clear_bhb_loop+0x40/0x90
[  466.423206][ T9744]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  466.423224][ T9744] RIP: 0033:0x7f995607814e
[  466.423243][ T9744] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  466.423259][ T9744] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  466.423285][ T9744] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  466.423299][ T9744] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  466.423311][ T9744] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  466.423323][ T9744] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  466.423334][ T9744] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  466.423366][ T9744]  </TASK>
[  466.426327][ T9745] FAULT_INJECTION: forcing a failure.
[  466.426327][ T9745] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  466.426358][ T9745] CPU: 0 UID: 0 PID: 9745 Comm: syz.2.822 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  466.426381][ T9745] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  466.426391][ T9745] Call Trace:
[  466.426397][ T9745]  <TASK>
[  466.426404][ T9745]  dump_stack_lvl+0xe8/0x150
[  466.426436][ T9745]  should_fail_ex+0x46b/0x600
[  466.426470][ T9745]  _copy_to_user+0x31/0xb0
[  466.426495][ T9745]  simple_read_from_buffer+0xe1/0x170
[  466.426524][ T9745]  proc_fail_nth_read+0x1be/0x230
[  466.426551][ T9745]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  466.426577][ T9745]  ? rw_verify_area+0x2ac/0x4e0
[  466.426603][ T9745]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  466.426626][ T9745]  vfs_read+0x212/0xa80
[  466.426660][ T9745]  ? __pfx_vfs_read+0x10/0x10
[  466.426687][ T9745]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  466.426710][ T9745]  ? lockdep_hardirqs_on+0x7a/0x110
[  466.426732][ T9745]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  466.426753][ T9745]  ? mutex_lock_nested+0x152/0x1d0
[  466.426778][ T9745]  ? fdget_pos+0x252/0x320
[  466.426809][ T9745]  ksys_read+0x156/0x270
[  466.426837][ T9745]  ? __pfx_ksys_read+0x10/0x10
[  466.426862][ T9745]  ? fdget+0x189/0x1f0
[  466.426890][ T9745]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  466.426910][ T9745]  do_syscall_64+0x15f/0xf80
[  466.426931][ T9745]  ? trace_irq_disable+0x3b/0x140
[  466.426950][ T9745]  ? clear_bhb_loop+0x40/0x90
[  466.426973][ T9745]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  466.426991][ T9745] RIP: 0033:0x7f0690b3814e
[  466.427009][ T9745] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  466.427025][ T9745] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  466.427045][ T9745] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  466.427059][ T9745] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  466.427071][ T9745] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  466.427082][ T9745] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  466.427094][ T9745] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  466.427124][ T9745]  </TASK>
[  466.660164][ T9746] FAULT_INJECTION: forcing a failure.
[  466.660164][ T9746] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  466.660196][ T9746] CPU: 0 UID: 0 PID: 9746 Comm: syz.4.821 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  466.660216][ T9746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  466.660229][ T9746] Call Trace:
[  466.660236][ T9746]  <TASK>
[  466.660244][ T9746]  dump_stack_lvl+0xe8/0x150
[  466.660278][ T9746]  should_fail_ex+0x46b/0x600
[  466.660312][ T9746]  _copy_to_user+0x31/0xb0
[  466.660337][ T9746]  simple_read_from_buffer+0xe1/0x170
[  466.660365][ T9746]  proc_fail_nth_read+0x1be/0x230
[  466.660392][ T9746]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  466.660417][ T9746]  ? rw_verify_area+0x2ac/0x4e0
[  466.660441][ T9746]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  466.660465][ T9746]  vfs_read+0x212/0xa80
[  466.660498][ T9746]  ? __pfx_vfs_read+0x10/0x10
[  466.660525][ T9746]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  466.660547][ T9746]  ? lockdep_hardirqs_on+0x7a/0x110
[  466.660570][ T9746]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  466.660589][ T9746]  ? mutex_lock_nested+0x152/0x1d0
[  466.660615][ T9746]  ? fdget_pos+0x252/0x320
[  466.660646][ T9746]  ksys_read+0x156/0x270
[  466.660674][ T9746]  ? __pfx_ksys_read+0x10/0x10
[  466.660699][ T9746]  ? fdget+0x189/0x1f0
[  466.660726][ T9746]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  466.660747][ T9746]  do_syscall_64+0x15f/0xf80
[  466.660769][ T9746]  ? trace_irq_disable+0x3b/0x140
[  466.660788][ T9746]  ? clear_bhb_loop+0x40/0x90
[  466.660811][ T9746]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  466.660829][ T9746] RIP: 0033:0x7f9bf0b0814e
[  466.660847][ T9746] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  466.660863][ T9746] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  466.660883][ T9746] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  466.660897][ T9746] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  466.660909][ T9746] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  466.660921][ T9746] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  466.660932][ T9746] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  466.660963][ T9746]  </TASK>
[  467.311496][ T9755] FAULT_INJECTION: forcing a failure.
[  467.311496][ T9755] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  467.311533][ T9755] CPU: 0 UID: 0 PID: 9755 Comm: syz.0.823 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  467.311583][ T9755] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  467.311595][ T9755] Call Trace:
[  467.311603][ T9755]  <TASK>
[  467.311612][ T9755]  dump_stack_lvl+0xe8/0x150
[  467.311645][ T9755]  should_fail_ex+0x46b/0x600
[  467.311681][ T9755]  _copy_to_user+0x31/0xb0
[  467.311706][ T9755]  simple_read_from_buffer+0xe1/0x170
[  467.311733][ T9755]  proc_fail_nth_read+0x1be/0x230
[  467.311759][ T9755]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  467.311785][ T9755]  ? rw_verify_area+0x2ac/0x4e0
[  467.311811][ T9755]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  467.311834][ T9755]  vfs_read+0x212/0xa80
[  467.311867][ T9755]  ? __pfx_vfs_read+0x10/0x10
[  467.311894][ T9755]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  467.311917][ T9755]  ? lockdep_hardirqs_on+0x7a/0x110
[  467.311939][ T9755]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  467.311960][ T9755]  ? mutex_lock_nested+0x152/0x1d0
[  467.311997][ T9755]  ? fdget_pos+0x252/0x320
[  467.312027][ T9755]  ksys_read+0x156/0x270
[  467.312055][ T9755]  ? __pfx_ksys_read+0x10/0x10
[  467.312079][ T9755]  ? fdget+0x189/0x1f0
[  467.312106][ T9755]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  467.312127][ T9755]  do_syscall_64+0x15f/0xf80
[  467.312148][ T9755]  ? trace_irq_disable+0x3b/0x140
[  467.312167][ T9755]  ? clear_bhb_loop+0x40/0x90
[  467.312190][ T9755]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  467.312208][ T9755] RIP: 0033:0x7f9acc22814e
[  467.312227][ T9755] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  467.312242][ T9755] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  467.312262][ T9755] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  467.312276][ T9755] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  467.312288][ T9755] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  467.312300][ T9755] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  467.312311][ T9755] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  467.312342][ T9755]  </TASK>
[  467.500240][ T9756] FAULT_INJECTION: forcing a failure.
[  467.500240][ T9756] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  467.500272][ T9756] CPU: 0 UID: 0 PID: 9756 Comm: syz.3.824 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  467.500294][ T9756] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  467.500306][ T9756] Call Trace:
[  467.500314][ T9756]  <TASK>
[  467.500323][ T9756]  dump_stack_lvl+0xe8/0x150
[  467.500356][ T9756]  should_fail_ex+0x46b/0x600
[  467.500390][ T9756]  _copy_to_user+0x31/0xb0
[  467.500416][ T9756]  simple_read_from_buffer+0xe1/0x170
[  467.500443][ T9756]  proc_fail_nth_read+0x1be/0x230
[  467.500471][ T9756]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  467.500497][ T9756]  ? rw_verify_area+0x2ac/0x4e0
[  467.500522][ T9756]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  467.500545][ T9756]  vfs_read+0x212/0xa80
[  467.500579][ T9756]  ? __pfx_vfs_read+0x10/0x10
[  467.500606][ T9756]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  467.500630][ T9756]  ? lockdep_hardirqs_on+0x7a/0x110
[  467.500651][ T9756]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  467.500672][ T9756]  ? mutex_lock_nested+0x152/0x1d0
[  467.500698][ T9756]  ? fdget_pos+0x252/0x320
[  467.500729][ T9756]  ksys_read+0x156/0x270
[  467.500756][ T9756]  ? __pfx_ksys_read+0x10/0x10
[  467.500780][ T9756]  ? fdget+0x189/0x1f0
[  467.500808][ T9756]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  467.500828][ T9756]  do_syscall_64+0x15f/0xf80
[  467.500849][ T9756]  ? trace_irq_disable+0x3b/0x140
[  467.500869][ T9756]  ? clear_bhb_loop+0x40/0x90
[  467.500893][ T9756]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  467.500911][ T9756] RIP: 0033:0x7f995607814e
[  467.500929][ T9756] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  467.500944][ T9756] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  467.500965][ T9756] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  467.500979][ T9756] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  467.500991][ T9756] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  467.501003][ T9756] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  467.501014][ T9756] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  467.501044][ T9756]  </TASK>
[  467.505301][ T9757] FAULT_INJECTION: forcing a failure.
[  467.505301][ T9757] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  467.505332][ T9757] CPU: 0 UID: 0 PID: 9757 Comm: syz.4.826 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  467.505353][ T9757] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  467.505365][ T9757] Call Trace:
[  467.505373][ T9757]  <TASK>
[  467.505381][ T9757]  dump_stack_lvl+0xe8/0x150
[  467.505415][ T9757]  should_fail_ex+0x46b/0x600
[  467.505450][ T9757]  _copy_to_user+0x31/0xb0
[  467.505475][ T9757]  simple_read_from_buffer+0xe1/0x170
[  467.505503][ T9757]  proc_fail_nth_read+0x1be/0x230
[  467.505530][ T9757]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  467.505556][ T9757]  ? rw_verify_area+0x2ac/0x4e0
[  467.505581][ T9757]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  467.505605][ T9757]  vfs_read+0x212/0xa80
[  467.505638][ T9757]  ? __pfx_vfs_read+0x10/0x10
[  467.505665][ T9757]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  467.505688][ T9757]  ? lockdep_hardirqs_on+0x7a/0x110
[  467.505709][ T9757]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  467.505730][ T9757]  ? mutex_lock_nested+0x152/0x1d0
[  467.505756][ T9757]  ? fdget_pos+0x252/0x320
[  467.505786][ T9757]  ksys_read+0x156/0x270
[  467.505814][ T9757]  ? __pfx_ksys_read+0x10/0x10
[  467.505839][ T9757]  ? fdget+0x189/0x1f0
[  467.505866][ T9757]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  467.505887][ T9757]  do_syscall_64+0x15f/0xf80
[  467.505907][ T9757]  ? trace_irq_disable+0x3b/0x140
[  467.505925][ T9757]  ? clear_bhb_loop+0x40/0x90
[  467.505948][ T9757]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  467.505964][ T9757] RIP: 0033:0x7f9bf0b0814e
[  467.505982][ T9757] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  467.505998][ T9757] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  467.506018][ T9757] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  467.506032][ T9757] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  467.506044][ T9757] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  467.506056][ T9757] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  467.506067][ T9757] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  467.506098][ T9757]  </TASK>
[  467.738355][ T9758] FAULT_INJECTION: forcing a failure.
[  467.738355][ T9758] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  467.738388][ T9758] CPU: 0 UID: 0 PID: 9758 Comm: syz.2.825 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  467.738409][ T9758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  467.738421][ T9758] Call Trace:
[  467.738429][ T9758]  <TASK>
[  467.738437][ T9758]  dump_stack_lvl+0xe8/0x150
[  467.738472][ T9758]  should_fail_ex+0x46b/0x600
[  467.738506][ T9758]  _copy_to_user+0x31/0xb0
[  467.738531][ T9758]  simple_read_from_buffer+0xe1/0x170
[  467.738559][ T9758]  proc_fail_nth_read+0x1be/0x230
[  467.738586][ T9758]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  467.738613][ T9758]  ? rw_verify_area+0x2ac/0x4e0
[  467.738636][ T9758]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  467.738660][ T9758]  vfs_read+0x212/0xa80
[  467.738694][ T9758]  ? __pfx_vfs_read+0x10/0x10
[  467.738719][ T9758]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  467.738742][ T9758]  ? lockdep_hardirqs_on+0x7a/0x110
[  467.738764][ T9758]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  467.738785][ T9758]  ? mutex_lock_nested+0x152/0x1d0
[  467.738810][ T9758]  ? fdget_pos+0x252/0x320
[  467.738841][ T9758]  ksys_read+0x156/0x270
[  467.738868][ T9758]  ? __pfx_ksys_read+0x10/0x10
[  467.738893][ T9758]  ? fdget+0x189/0x1f0
[  467.738919][ T9758]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  467.738947][ T9758]  do_syscall_64+0x15f/0xf80
[  467.738968][ T9758]  ? trace_irq_disable+0x3b/0x140
[  467.738988][ T9758]  ? clear_bhb_loop+0x40/0x90
[  467.739011][ T9758]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  467.739029][ T9758] RIP: 0033:0x7f0690b3814e
[  467.739048][ T9758] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  467.739064][ T9758] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  467.739084][ T9758] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  467.739099][ T9758] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  467.739111][ T9758] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  467.739127][ T9758] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  467.739139][ T9758] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  467.739169][ T9758]  </TASK>
[  468.111428][   T13] team0 (unregistering): Port device team_slave_1 removed
[  468.204488][   T13] team0 (unregistering): Port device team_slave_0 removed
[  468.554381][ T9767] FAULT_INJECTION: forcing a failure.
[  468.554381][ T9767] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  468.554413][ T9767] CPU: 0 UID: 0 PID: 9767 Comm: syz.0.827 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  468.554434][ T9767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  468.554446][ T9767] Call Trace:
[  468.554453][ T9767]  <TASK>
[  468.554462][ T9767]  dump_stack_lvl+0xe8/0x150
[  468.554495][ T9767]  should_fail_ex+0x46b/0x600
[  468.554530][ T9767]  _copy_to_user+0x31/0xb0
[  468.554555][ T9767]  simple_read_from_buffer+0xe1/0x170
[  468.554582][ T9767]  proc_fail_nth_read+0x1be/0x230
[  468.554608][ T9767]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  468.554634][ T9767]  ? rw_verify_area+0x2ac/0x4e0
[  468.554659][ T9767]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  468.554692][ T9767]  vfs_read+0x212/0xa80
[  468.554725][ T9767]  ? __pfx_vfs_read+0x10/0x10
[  468.554752][ T9767]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  468.554776][ T9767]  ? lockdep_hardirqs_on+0x7a/0x110
[  468.554797][ T9767]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  468.554819][ T9767]  ? mutex_lock_nested+0x152/0x1d0
[  468.554851][ T9767]  ? fdget_pos+0x252/0x320
[  468.554881][ T9767]  ksys_read+0x156/0x270
[  468.554908][ T9767]  ? __pfx_ksys_read+0x10/0x10
[  468.554933][ T9767]  ? fdget+0x189/0x1f0
[  468.554960][ T9767]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  468.554981][ T9767]  do_syscall_64+0x15f/0xf80
[  468.555001][ T9767]  ? trace_irq_disable+0x3b/0x140
[  468.555020][ T9767]  ? clear_bhb_loop+0x40/0x90
[  468.555043][ T9767]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  468.555062][ T9767] RIP: 0033:0x7f9acc22814e
[  468.555080][ T9767] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  468.555095][ T9767] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  468.555115][ T9767] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  468.555130][ T9767] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  468.555142][ T9767] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  468.555154][ T9767] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  468.555164][ T9767] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  468.555195][ T9767]  </TASK>
[  468.733501][ T9768] FAULT_INJECTION: forcing a failure.
[  468.733501][ T9768] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  468.733535][ T9768] CPU: 0 UID: 0 PID: 9768 Comm: syz.3.828 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  468.733556][ T9768] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  468.733567][ T9768] Call Trace:
[  468.733575][ T9768]  <TASK>
[  468.733583][ T9768]  dump_stack_lvl+0xe8/0x150
[  468.733617][ T9768]  should_fail_ex+0x46b/0x600
[  468.733652][ T9768]  _copy_to_user+0x31/0xb0
[  468.733677][ T9768]  simple_read_from_buffer+0xe1/0x170
[  468.733702][ T9768]  proc_fail_nth_read+0x1be/0x230
[  468.733729][ T9768]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  468.733755][ T9768]  ? rw_verify_area+0x2ac/0x4e0
[  468.733780][ T9768]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  468.733805][ T9768]  vfs_read+0x212/0xa80
[  468.733837][ T9768]  ? __pfx_vfs_read+0x10/0x10
[  468.733864][ T9768]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  468.733887][ T9768]  ? lockdep_hardirqs_on+0x7a/0x110
[  468.733909][ T9768]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  468.733931][ T9768]  ? mutex_lock_nested+0x152/0x1d0
[  468.733956][ T9768]  ? fdget_pos+0x252/0x320
[  468.733986][ T9768]  ksys_read+0x156/0x270
[  468.734013][ T9768]  ? __pfx_ksys_read+0x10/0x10
[  468.734038][ T9768]  ? fdget+0x189/0x1f0
[  468.734071][ T9768]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  468.734093][ T9768]  do_syscall_64+0x15f/0xf80
[  468.734113][ T9768]  ? trace_irq_disable+0x3b/0x140
[  468.734133][ T9768]  ? clear_bhb_loop+0x40/0x90
[  468.734156][ T9768]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  468.734174][ T9768] RIP: 0033:0x7f995607814e
[  468.734192][ T9768] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  468.734209][ T9768] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  468.734230][ T9768] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  468.734244][ T9768] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  468.734256][ T9768] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  468.734267][ T9768] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  468.734278][ T9768] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  468.734308][ T9768]  </TASK>
[  468.738264][ T9769] FAULT_INJECTION: forcing a failure.
[  468.738264][ T9769] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  468.738295][ T9769] CPU: 0 UID: 0 PID: 9769 Comm: syz.4.829 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  468.738316][ T9769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  468.738327][ T9769] Call Trace:
[  468.738335][ T9769]  <TASK>
[  468.738344][ T9769]  dump_stack_lvl+0xe8/0x150
[  468.738377][ T9769]  should_fail_ex+0x46b/0x600
[  468.738411][ T9769]  _copy_to_user+0x31/0xb0
[  468.738436][ T9769]  simple_read_from_buffer+0xe1/0x170
[  468.738464][ T9769]  proc_fail_nth_read+0x1be/0x230
[  468.738491][ T9769]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  468.738518][ T9769]  ? rw_verify_area+0x2ac/0x4e0
[  468.738542][ T9769]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  468.738566][ T9769]  vfs_read+0x212/0xa80
[  468.738599][ T9769]  ? __pfx_vfs_read+0x10/0x10
[  468.738626][ T9769]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  468.738649][ T9769]  ? lockdep_hardirqs_on+0x7a/0x110
[  468.738671][ T9769]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  468.738693][ T9769]  ? mutex_lock_nested+0x152/0x1d0
[  468.738718][ T9769]  ? fdget_pos+0x252/0x320
[  468.738749][ T9769]  ksys_read+0x156/0x270
[  468.738775][ T9769]  ? __pfx_ksys_read+0x10/0x10
[  468.738800][ T9769]  ? fdget+0x189/0x1f0
[  468.738826][ T9769]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  468.738846][ T9769]  do_syscall_64+0x15f/0xf80
[  468.738867][ T9769]  ? trace_irq_disable+0x3b/0x140
[  468.738886][ T9769]  ? clear_bhb_loop+0x40/0x90
[  468.738908][ T9769]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  468.738927][ T9769] RIP: 0033:0x7f9bf0b0814e
[  468.738945][ T9769] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  468.738961][ T9769] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  468.738981][ T9769] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  468.738995][ T9769] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  468.739007][ T9769] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  468.739019][ T9769] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  468.739029][ T9769] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  468.739066][ T9769]  </TASK>
[  468.966146][ T9770] FAULT_INJECTION: forcing a failure.
[  468.966146][ T9770] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  468.966178][ T9770] CPU: 0 UID: 0 PID: 9770 Comm: syz.2.830 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  468.966200][ T9770] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  468.966211][ T9770] Call Trace:
[  468.966219][ T9770]  <TASK>
[  468.966227][ T9770]  dump_stack_lvl+0xe8/0x150
[  468.966260][ T9770]  should_fail_ex+0x46b/0x600
[  468.966294][ T9770]  _copy_to_user+0x31/0xb0
[  468.966319][ T9770]  simple_read_from_buffer+0xe1/0x170
[  468.966347][ T9770]  proc_fail_nth_read+0x1be/0x230
[  468.966377][ T9770]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  468.966398][ T9770]  ? rw_verify_area+0x2ac/0x4e0
[  468.966419][ T9770]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  468.966441][ T9770]  vfs_read+0x212/0xa80
[  468.966473][ T9770]  ? __pfx_vfs_read+0x10/0x10
[  468.966501][ T9770]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  468.966524][ T9770]  ? lockdep_hardirqs_on+0x7a/0x110
[  468.966546][ T9770]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  468.966568][ T9770]  ? mutex_lock_nested+0x152/0x1d0
[  468.966593][ T9770]  ? fdget_pos+0x252/0x320
[  468.966625][ T9770]  ksys_read+0x156/0x270
[  468.966652][ T9770]  ? __pfx_ksys_read+0x10/0x10
[  468.966677][ T9770]  ? fdget+0x189/0x1f0
[  468.966704][ T9770]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  468.966724][ T9770]  do_syscall_64+0x15f/0xf80
[  468.966745][ T9770]  ? trace_irq_disable+0x3b/0x140
[  468.966763][ T9770]  ? clear_bhb_loop+0x40/0x90
[  468.966786][ T9770]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  468.966804][ T9770] RIP: 0033:0x7f0690b3814e
[  468.966821][ T9770] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  468.966837][ T9770] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  468.966858][ T9770] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  468.966872][ T9770] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  468.966884][ T9770] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  468.966895][ T9770] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  468.966906][ T9770] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  468.966936][ T9770]  </TASK>
[  469.820628][ T9779] FAULT_INJECTION: forcing a failure.
[  469.820628][ T9779] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  469.820660][ T9779] CPU: 0 UID: 0 PID: 9779 Comm: syz.0.831 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  469.820681][ T9779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  469.820693][ T9779] Call Trace:
[  469.820701][ T9779]  <TASK>
[  469.820709][ T9779]  dump_stack_lvl+0xe8/0x150
[  469.820743][ T9779]  should_fail_ex+0x46b/0x600
[  469.820785][ T9779]  _copy_to_user+0x31/0xb0
[  469.820810][ T9779]  simple_read_from_buffer+0xe1/0x170
[  469.820838][ T9779]  proc_fail_nth_read+0x1be/0x230
[  469.820865][ T9779]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  469.820891][ T9779]  ? rw_verify_area+0x2ac/0x4e0
[  469.820916][ T9779]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  469.820940][ T9779]  vfs_read+0x212/0xa80
[  469.820973][ T9779]  ? __pfx_vfs_read+0x10/0x10
[  469.821000][ T9779]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  469.821023][ T9779]  ? lockdep_hardirqs_on+0x7a/0x110
[  469.821045][ T9779]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  469.821066][ T9779]  ? mutex_lock_nested+0x152/0x1d0
[  469.821091][ T9779]  ? fdget_pos+0x252/0x320
[  469.821122][ T9779]  ksys_read+0x156/0x270
[  469.821149][ T9779]  ? __pfx_ksys_read+0x10/0x10
[  469.821174][ T9779]  ? fdget+0x189/0x1f0
[  469.821201][ T9779]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  469.821222][ T9779]  do_syscall_64+0x15f/0xf80
[  469.821243][ T9779]  ? trace_irq_disable+0x3b/0x140
[  469.821261][ T9779]  ? clear_bhb_loop+0x40/0x90
[  469.821285][ T9779]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  469.821303][ T9779] RIP: 0033:0x7f9acc22814e
[  469.821321][ T9779] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  469.821337][ T9779] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  469.821357][ T9779] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  469.821371][ T9779] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  469.821383][ T9779] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  469.821395][ T9779] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  469.821406][ T9779] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  469.821436][ T9779]  </TASK>
[  469.862706][ T9780] FAULT_INJECTION: forcing a failure.
[  469.862706][ T9780] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  469.862736][ T9780] CPU: 1 UID: 0 PID: 9780 Comm: syz.3.832 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  469.862757][ T9780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  469.862768][ T9780] Call Trace:
[  469.862775][ T9780]  <TASK>
[  469.862783][ T9780]  dump_stack_lvl+0xe8/0x150
[  469.862824][ T9780]  should_fail_ex+0x46b/0x600
[  469.862856][ T9780]  _copy_to_user+0x31/0xb0
[  469.862880][ T9780]  simple_read_from_buffer+0xe1/0x170
[  469.862907][ T9780]  proc_fail_nth_read+0x1be/0x230
[  469.862932][ T9780]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  469.862956][ T9780]  ? rw_verify_area+0x2ac/0x4e0
[  469.862980][ T9780]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  469.863003][ T9780]  vfs_read+0x212/0xa80
[  469.863034][ T9780]  ? __pfx_vfs_read+0x10/0x10
[  469.863059][ T9780]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  469.863080][ T9780]  ? lockdep_hardirqs_on+0x7a/0x110
[  469.863101][ T9780]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  469.863121][ T9780]  ? mutex_lock_nested+0x152/0x1d0
[  469.863144][ T9780]  ? fdget_pos+0x252/0x320
[  469.863173][ T9780]  ksys_read+0x156/0x270
[  469.863199][ T9780]  ? __pfx_ksys_read+0x10/0x10
[  469.863223][ T9780]  ? fdget+0x189/0x1f0
[  469.863248][ T9780]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  469.863267][ T9780]  do_syscall_64+0x15f/0xf80
[  469.863287][ T9780]  ? trace_irq_disable+0x3b/0x140
[  469.863304][ T9780]  ? clear_bhb_loop+0x40/0x90
[  469.863325][ T9780]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  469.863343][ T9780] RIP: 0033:0x7f995607814e
[  469.863364][ T9780] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  469.863380][ T9780] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  469.863399][ T9780] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  469.863412][ T9780] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  469.863424][ T9780] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  469.863435][ T9780] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  469.863446][ T9780] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  469.863474][ T9780]  </TASK>
[  470.439661][ T9793] FAULT_INJECTION: forcing a failure.
[  470.439661][ T9793] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  470.439693][ T9793] CPU: 0 UID: 0 PID: 9793 Comm: syz.2.834 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  470.439723][ T9793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  470.439735][ T9793] Call Trace:
[  470.439743][ T9793]  <TASK>
[  470.439751][ T9793]  dump_stack_lvl+0xe8/0x150
[  470.439784][ T9793]  should_fail_ex+0x46b/0x600
[  470.439820][ T9793]  _copy_to_user+0x31/0xb0
[  470.439844][ T9793]  simple_read_from_buffer+0xe1/0x170
[  470.439877][ T9793]  proc_fail_nth_read+0x1be/0x230
[  470.439904][ T9793]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  470.439929][ T9793]  ? rw_verify_area+0x2ac/0x4e0
[  470.439954][ T9793]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  470.439978][ T9793]  vfs_read+0x212/0xa80
[  470.440011][ T9793]  ? __pfx_vfs_read+0x10/0x10
[  470.440038][ T9793]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  470.440061][ T9793]  ? lockdep_hardirqs_on+0x7a/0x110
[  470.440082][ T9793]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  470.440105][ T9793]  ? mutex_lock_nested+0x152/0x1d0
[  470.440129][ T9793]  ? fdget_pos+0x252/0x320
[  470.440160][ T9793]  ksys_read+0x156/0x270
[  470.440188][ T9793]  ? __pfx_ksys_read+0x10/0x10
[  470.440212][ T9793]  ? fdget+0x189/0x1f0
[  470.440240][ T9793]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  470.440261][ T9793]  do_syscall_64+0x15f/0xf80
[  470.440282][ T9793]  ? trace_irq_disable+0x3b/0x140
[  470.440301][ T9793]  ? clear_bhb_loop+0x40/0x90
[  470.440323][ T9793]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  470.440342][ T9793] RIP: 0033:0x7f0690b3814e
[  470.440358][ T9793] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  470.440374][ T9793] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  470.440394][ T9793] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  470.440408][ T9793] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  470.440420][ T9793] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  470.440431][ T9793] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  470.440442][ T9793] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  470.440472][ T9793]  </TASK>
[  470.640208][ T9794] FAULT_INJECTION: forcing a failure.
[  470.640208][ T9794] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  470.640240][ T9794] CPU: 0 UID: 0 PID: 9794 Comm: syz.4.833 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  470.640262][ T9794] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  470.640274][ T9794] Call Trace:
[  470.640281][ T9794]  <TASK>
[  470.640289][ T9794]  dump_stack_lvl+0xe8/0x150
[  470.640323][ T9794]  should_fail_ex+0x46b/0x600
[  470.640357][ T9794]  _copy_to_user+0x31/0xb0
[  470.640381][ T9794]  simple_read_from_buffer+0xe1/0x170
[  470.640409][ T9794]  proc_fail_nth_read+0x1be/0x230
[  470.640435][ T9794]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  470.640461][ T9794]  ? rw_verify_area+0x2ac/0x4e0
[  470.640485][ T9794]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  470.640510][ T9794]  vfs_read+0x212/0xa80
2026/04/17 23:21:05 executed programs: 829
[  470.640542][ T9794]  ? __pfx_vfs_read+0x10/0x10
[  470.640569][ T9794]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  470.640591][ T9794]  ? lockdep_hardirqs_on+0x7a/0x110
[  470.640612][ T9794]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  470.640634][ T9794]  ? mutex_lock_nested+0x152/0x1d0
[  470.640659][ T9794]  ? fdget_pos+0x252/0x320
[  470.640697][ T9794]  ksys_read+0x156/0x270
[  470.640724][ T9794]  ? __pfx_ksys_read+0x10/0x10
[  470.640748][ T9794]  ? fdget+0x189/0x1f0
[  470.640775][ T9794]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  470.640796][ T9794]  do_syscall_64+0x15f/0xf80
[  470.640816][ T9794]  ? trace_irq_disable+0x3b/0x140
[  470.640835][ T9794]  ? clear_bhb_loop+0x40/0x90
[  470.640858][ T9794]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  470.640877][ T9794] RIP: 0033:0x7f9bf0b0814e
[  470.640895][ T9794] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  470.640911][ T9794] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  470.640932][ T9794] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  470.640946][ T9794] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  470.640959][ T9794] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  470.640971][ T9794] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  470.640982][ T9794] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  470.641013][ T9794]  </TASK>
[  471.367568][ T9458] netdevsim netdevsim1 netdevsim0: renamed from eth0
[  471.410956][ T9458] 8021q: adding VLAN 0 to HW filter on device netdevsim0
[  471.413062][ T9458] netdevsim netdevsim1 netdevsim1: renamed from eth1
[  471.459866][ T9458] 8021q: adding VLAN 0 to HW filter on device netdevsim1
[  471.461120][ T9458] netdevsim netdevsim1 netdevsim2: renamed from eth2
[  471.499530][ T9805] FAULT_INJECTION: forcing a failure.
[  471.499530][ T9805] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  471.499562][ T9805] CPU: 0 UID: 0 PID: 9805 Comm: syz.0.835 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  471.499584][ T9805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  471.499595][ T9805] Call Trace:
[  471.499604][ T9805]  <TASK>
[  471.499612][ T9805]  dump_stack_lvl+0xe8/0x150
[  471.499645][ T9805]  should_fail_ex+0x46b/0x600
[  471.499679][ T9805]  _copy_to_user+0x31/0xb0
[  471.499703][ T9805]  simple_read_from_buffer+0xe1/0x170
[  471.499732][ T9805]  proc_fail_nth_read+0x1be/0x230
[  471.499759][ T9805]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  471.499794][ T9805]  ? rw_verify_area+0x2ac/0x4e0
[  471.499820][ T9805]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  471.499845][ T9805]  vfs_read+0x212/0xa80
[  471.499878][ T9805]  ? __pfx_vfs_read+0x10/0x10
[  471.499905][ T9805]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  471.499929][ T9805]  ? lockdep_hardirqs_on+0x7a/0x110
[  471.499950][ T9805]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  471.499972][ T9805]  ? mutex_lock_nested+0x152/0x1d0
[  471.499997][ T9805]  ? fdget_pos+0x252/0x320
[  471.500027][ T9805]  ksys_read+0x156/0x270
[  471.500055][ T9805]  ? __pfx_ksys_read+0x10/0x10
[  471.500079][ T9805]  ? fdget+0x189/0x1f0
[  471.500106][ T9805]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  471.500127][ T9805]  do_syscall_64+0x15f/0xf80
[  471.500147][ T9805]  ? trace_irq_disable+0x3b/0x140
[  471.500166][ T9805]  ? clear_bhb_loop+0x40/0x90
[  471.500189][ T9805]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  471.500208][ T9805] RIP: 0033:0x7f9acc22814e
[  471.500226][ T9805] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  471.500242][ T9805] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  471.500261][ T9805] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  471.500275][ T9805] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  471.500286][ T9805] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  471.500298][ T9805] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  471.500309][ T9805] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  471.500339][ T9805]  </TASK>
[  471.680531][ T9806] FAULT_INJECTION: forcing a failure.
[  471.680531][ T9806] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  471.680562][ T9806] CPU: 0 UID: 0 PID: 9806 Comm: syz.3.836 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  471.680584][ T9806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  471.680595][ T9806] Call Trace:
[  471.680603][ T9806]  <TASK>
[  471.680611][ T9806]  dump_stack_lvl+0xe8/0x150
[  471.680644][ T9806]  should_fail_ex+0x46b/0x600
[  471.680678][ T9806]  _copy_to_user+0x31/0xb0
[  471.680702][ T9806]  simple_read_from_buffer+0xe1/0x170
[  471.680730][ T9806]  proc_fail_nth_read+0x1be/0x230
[  471.680757][ T9806]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  471.680784][ T9806]  ? rw_verify_area+0x2ac/0x4e0
[  471.680816][ T9806]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  471.680841][ T9806]  vfs_read+0x212/0xa80
[  471.680873][ T9806]  ? __pfx_vfs_read+0x10/0x10
[  471.680900][ T9806]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  471.680923][ T9806]  ? lockdep_hardirqs_on+0x7a/0x110
[  471.680945][ T9806]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  471.680967][ T9806]  ? mutex_lock_nested+0x152/0x1d0
[  471.680992][ T9806]  ? fdget_pos+0x252/0x320
[  471.681023][ T9806]  ksys_read+0x156/0x270
[  471.681050][ T9806]  ? __pfx_ksys_read+0x10/0x10
[  471.681074][ T9806]  ? fdget+0x189/0x1f0
[  471.681101][ T9806]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  471.681122][ T9806]  do_syscall_64+0x15f/0xf80
[  471.681143][ T9806]  ? trace_irq_disable+0x3b/0x140
[  471.681162][ T9806]  ? clear_bhb_loop+0x40/0x90
[  471.681184][ T9806]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  471.681203][ T9806] RIP: 0033:0x7f995607814e
[  471.681221][ T9806] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  471.681237][ T9806] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  471.681256][ T9806] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  471.681269][ T9806] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  471.681281][ T9806] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  471.681293][ T9806] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  471.681304][ T9806] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  471.681335][ T9806]  </TASK>
[  471.684268][ T9807] FAULT_INJECTION: forcing a failure.
[  471.684268][ T9807] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  471.684298][ T9807] CPU: 0 UID: 0 PID: 9807 Comm: syz.2.837 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  471.684320][ T9807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  471.684331][ T9807] Call Trace:
[  471.684340][ T9807]  <TASK>
[  471.684347][ T9807]  dump_stack_lvl+0xe8/0x150
[  471.684379][ T9807]  should_fail_ex+0x46b/0x600
[  471.684414][ T9807]  _copy_to_user+0x31/0xb0
[  471.684438][ T9807]  simple_read_from_buffer+0xe1/0x170
[  471.684465][ T9807]  proc_fail_nth_read+0x1be/0x230
[  471.684492][ T9807]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  471.684519][ T9807]  ? rw_verify_area+0x2ac/0x4e0
[  471.684543][ T9807]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  471.684566][ T9807]  vfs_read+0x212/0xa80
[  471.684599][ T9807]  ? __pfx_vfs_read+0x10/0x10
[  471.684627][ T9807]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  471.684649][ T9807]  ? lockdep_hardirqs_on+0x7a/0x110
[  471.684672][ T9807]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  471.684693][ T9807]  ? mutex_lock_nested+0x152/0x1d0
[  471.684718][ T9807]  ? fdget_pos+0x252/0x320
[  471.684748][ T9807]  ksys_read+0x156/0x270
[  471.684776][ T9807]  ? __pfx_ksys_read+0x10/0x10
[  471.684807][ T9807]  ? fdget+0x189/0x1f0
[  471.684835][ T9807]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  471.684855][ T9807]  do_syscall_64+0x15f/0xf80
[  471.684876][ T9807]  ? trace_irq_disable+0x3b/0x140
[  471.684896][ T9807]  ? clear_bhb_loop+0x40/0x90
[  471.684919][ T9807]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  471.684937][ T9807] RIP: 0033:0x7f0690b3814e
[  471.684955][ T9807] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  471.684971][ T9807] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  471.684991][ T9807] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  471.685004][ T9807] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  471.685016][ T9807] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  471.685027][ T9807] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  471.685039][ T9807] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  471.685069][ T9807]  </TASK>
[  471.915201][ T9808] FAULT_INJECTION: forcing a failure.
[  471.915201][ T9808] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  471.915232][ T9808] CPU: 0 UID: 0 PID: 9808 Comm: syz.4.838 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  471.915254][ T9808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  471.915265][ T9808] Call Trace:
[  471.915273][ T9808]  <TASK>
[  471.915281][ T9808]  dump_stack_lvl+0xe8/0x150
[  471.915314][ T9808]  should_fail_ex+0x46b/0x600
[  471.915348][ T9808]  _copy_to_user+0x31/0xb0
[  471.915372][ T9808]  simple_read_from_buffer+0xe1/0x170
[  471.915399][ T9808]  proc_fail_nth_read+0x1be/0x230
[  471.915425][ T9808]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  471.915451][ T9808]  ? rw_verify_area+0x2ac/0x4e0
[  471.915476][ T9808]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  471.915499][ T9808]  vfs_read+0x212/0xa80
[  471.915532][ T9808]  ? __pfx_vfs_read+0x10/0x10
[  471.915559][ T9808]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  471.915590][ T9808]  ? lockdep_hardirqs_on+0x7a/0x110
[  471.915611][ T9808]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  471.915632][ T9808]  ? mutex_lock_nested+0x152/0x1d0
[  471.915658][ T9808]  ? fdget_pos+0x252/0x320
[  471.915688][ T9808]  ksys_read+0x156/0x270
[  471.915715][ T9808]  ? __pfx_ksys_read+0x10/0x10
[  471.915739][ T9808]  ? fdget+0x189/0x1f0
[  471.915766][ T9808]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  471.915787][ T9808]  do_syscall_64+0x15f/0xf80
[  471.915808][ T9808]  ? trace_irq_disable+0x3b/0x140
[  471.915826][ T9808]  ? clear_bhb_loop+0x40/0x90
[  471.915850][ T9808]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  471.915868][ T9808] RIP: 0033:0x7f9bf0b0814e
[  471.915887][ T9808] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  471.915903][ T9808] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  471.915923][ T9808] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  471.915936][ T9808] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  471.915948][ T9808] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  471.915960][ T9808] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  471.915971][ T9808] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  471.916001][ T9808]  </TASK>
[  472.189340][ T9458] 8021q: adding VLAN 0 to HW filter on device netdevsim2
[  472.198566][ T9458] netdevsim netdevsim1 netdevsim3: renamed from eth3
[  472.312543][ T9458] 8021q: adding VLAN 0 to HW filter on device netdevsim3
[  472.563659][ T9458] 8021q: adding VLAN 0 to HW filter on device bond0
[  472.587712][ T9458] 8021q: adding VLAN 0 to HW filter on device team0
[  472.649279][ T4327] bridge0: port 1(bridge_slave_0) entered blocking state
[  472.649493][ T4327] bridge0: port 1(bridge_slave_0) entered forwarding state
[  472.652005][ T4327] bridge0: port 2(bridge_slave_1) entered blocking state
[  472.652143][ T4327] bridge0: port 2(bridge_slave_1) entered forwarding state
[  472.875043][ T9822] FAULT_INJECTION: forcing a failure.
[  472.875043][ T9822] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  472.875075][ T9822] CPU: 1 UID: 0 PID: 9822 Comm: syz.3.840 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  472.875096][ T9822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  472.875108][ T9822] Call Trace:
[  472.875116][ T9822]  <TASK>
[  472.875125][ T9822]  dump_stack_lvl+0xe8/0x150
[  472.875158][ T9822]  should_fail_ex+0x46b/0x600
[  472.875194][ T9822]  _copy_to_user+0x31/0xb0
[  472.875219][ T9822]  simple_read_from_buffer+0xe1/0x170
[  472.875247][ T9822]  proc_fail_nth_read+0x1be/0x230
[  472.875273][ T9822]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  472.875300][ T9822]  ? rw_verify_area+0x2ac/0x4e0
[  472.875325][ T9822]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  472.875349][ T9822]  vfs_read+0x212/0xa80
[  472.875383][ T9822]  ? __pfx_vfs_read+0x10/0x10
[  472.875416][ T9822]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  472.875440][ T9822]  ? lockdep_hardirqs_on+0x7a/0x110
[  472.875462][ T9822]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  472.875483][ T9822]  ? mutex_lock_nested+0x152/0x1d0
[  472.875508][ T9822]  ? fdget_pos+0x252/0x320
[  472.875539][ T9822]  ksys_read+0x156/0x270
[  472.875566][ T9822]  ? __pfx_ksys_read+0x10/0x10
[  472.875590][ T9822]  ? fdget+0x189/0x1f0
[  472.875616][ T9822]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  472.875637][ T9822]  do_syscall_64+0x15f/0xf80
[  472.875657][ T9822]  ? trace_irq_disable+0x3b/0x140
[  472.875676][ T9822]  ? clear_bhb_loop+0x40/0x90
[  472.875698][ T9822]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  472.875716][ T9822] RIP: 0033:0x7f995607814e
[  472.875735][ T9822] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  472.875750][ T9822] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  472.875770][ T9822] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  472.875784][ T9822] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  472.875796][ T9822] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  472.875807][ T9822] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  472.875818][ T9822] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  472.875849][ T9822]  </TASK>
[  472.877272][ T9821] FAULT_INJECTION: forcing a failure.
[  472.877272][ T9821] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  472.877301][ T9821] CPU: 0 UID: 0 PID: 9821 Comm: syz.0.839 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  472.877321][ T9821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  472.877332][ T9821] Call Trace:
[  472.877340][ T9821]  <TASK>
[  472.877348][ T9821]  dump_stack_lvl+0xe8/0x150
[  472.877380][ T9821]  should_fail_ex+0x46b/0x600
[  472.877412][ T9821]  _copy_to_user+0x31/0xb0
[  472.877435][ T9821]  simple_read_from_buffer+0xe1/0x170
[  472.877463][ T9821]  proc_fail_nth_read+0x1be/0x230
[  472.877487][ T9821]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  472.877510][ T9821]  ? rw_verify_area+0x2ac/0x4e0
[  472.877531][ T9821]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  472.877553][ T9821]  vfs_read+0x212/0xa80
[  472.877584][ T9821]  ? __pfx_vfs_read+0x10/0x10
[  472.877611][ T9821]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  472.877631][ T9821]  ? lockdep_hardirqs_on+0x7a/0x110
[  472.877650][ T9821]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  472.877681][ T9821]  ? mutex_lock_nested+0x152/0x1d0
[  472.877704][ T9821]  ? fdget_pos+0x252/0x320
[  472.877731][ T9821]  ksys_read+0x156/0x270
[  472.877757][ T9821]  ? __pfx_ksys_read+0x10/0x10
[  472.877781][ T9821]  ? fdget+0x189/0x1f0
[  472.877807][ T9821]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  472.877826][ T9821]  do_syscall_64+0x15f/0xf80
[  472.877849][ T9821]  ? clear_bhb_loop+0x40/0x90
[  472.877871][ T9821]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  472.877888][ T9821] RIP: 0033:0x7f9acc22814e
[  472.877904][ T9821] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  472.877918][ T9821] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  472.877936][ T9821] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  472.877950][ T9821] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  472.877960][ T9821] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  472.877972][ T9821] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  472.877982][ T9821] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  472.878012][ T9821]  </TASK>
[  473.315340][ T9458] 8021q: adding VLAN 0 to HW filter on device batadv0
[  473.439824][ T9458] veth0_vlan: entered promiscuous mode
[  473.455674][ T9458] veth1_vlan: entered promiscuous mode
[  473.463565][ T9829] FAULT_INJECTION: forcing a failure.
[  473.463565][ T9829] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  473.463597][ T9829] CPU: 0 UID: 0 PID: 9829 Comm: syz.4.842 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  473.463619][ T9829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  473.463631][ T9829] Call Trace:
[  473.463648][ T9829]  <TASK>
[  473.463656][ T9829]  dump_stack_lvl+0xe8/0x150
[  473.463689][ T9829]  should_fail_ex+0x46b/0x600
[  473.463725][ T9829]  _copy_to_user+0x31/0xb0
[  473.463749][ T9829]  simple_read_from_buffer+0xe1/0x170
[  473.463778][ T9829]  proc_fail_nth_read+0x1be/0x230
[  473.463805][ T9829]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  473.463832][ T9829]  ? rw_verify_area+0x2ac/0x4e0
[  473.463856][ T9829]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  473.463880][ T9829]  vfs_read+0x212/0xa80
[  473.463914][ T9829]  ? __pfx_vfs_read+0x10/0x10
[  473.463941][ T9829]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  473.463964][ T9829]  ? lockdep_hardirqs_on+0x7a/0x110
[  473.463985][ T9829]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  473.464007][ T9829]  ? mutex_lock_nested+0x152/0x1d0
[  473.464032][ T9829]  ? fdget_pos+0x252/0x320
[  473.464062][ T9829]  ksys_read+0x156/0x270
[  473.464089][ T9829]  ? __pfx_ksys_read+0x10/0x10
[  473.464114][ T9829]  ? fdget+0x189/0x1f0
[  473.464141][ T9829]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  473.464161][ T9829]  do_syscall_64+0x15f/0xf80
[  473.464181][ T9829]  ? trace_irq_disable+0x3b/0x140
[  473.464200][ T9829]  ? clear_bhb_loop+0x40/0x90
[  473.464224][ T9829]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  473.464242][ T9829] RIP: 0033:0x7f9bf0b0814e
[  473.464260][ T9829] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  473.464276][ T9829] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  473.464295][ T9829] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  473.464309][ T9829] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  473.464321][ T9829] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  473.464332][ T9829] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  473.464344][ T9829] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  473.464375][ T9829]  </TASK>
[  473.663187][ T9830] FAULT_INJECTION: forcing a failure.
[  473.663187][ T9830] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  473.663221][ T9830] CPU: 0 UID: 0 PID: 9830 Comm: syz.2.841 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  473.663243][ T9830] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  473.663255][ T9830] Call Trace:
[  473.663263][ T9830]  <TASK>
[  473.663271][ T9830]  dump_stack_lvl+0xe8/0x150
[  473.663305][ T9830]  should_fail_ex+0x46b/0x600
[  473.663339][ T9830]  _copy_to_user+0x31/0xb0
[  473.663365][ T9830]  simple_read_from_buffer+0xe1/0x170
[  473.663393][ T9830]  proc_fail_nth_read+0x1be/0x230
[  473.663420][ T9830]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  473.663447][ T9830]  ? rw_verify_area+0x2ac/0x4e0
[  473.663470][ T9830]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  473.663494][ T9830]  vfs_read+0x212/0xa80
[  473.663528][ T9830]  ? __pfx_vfs_read+0x10/0x10
[  473.663554][ T9830]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  473.663585][ T9830]  ? lockdep_hardirqs_on+0x7a/0x110
[  473.663606][ T9830]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  473.663628][ T9830]  ? mutex_lock_nested+0x152/0x1d0
[  473.663652][ T9830]  ? fdget_pos+0x252/0x320
[  473.663682][ T9830]  ksys_read+0x156/0x270
[  473.663709][ T9830]  ? __pfx_ksys_read+0x10/0x10
[  473.663733][ T9830]  ? fdget+0x189/0x1f0
[  473.663760][ T9830]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  473.663780][ T9830]  do_syscall_64+0x15f/0xf80
[  473.663800][ T9830]  ? trace_irq_disable+0x3b/0x140
[  473.663818][ T9830]  ? clear_bhb_loop+0x40/0x90
[  473.663841][ T9830]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  473.663860][ T9830] RIP: 0033:0x7f0690b3814e
[  473.663877][ T9830] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  473.663893][ T9830] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  473.663912][ T9830] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  473.663926][ T9830] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  473.663938][ T9830] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  473.663950][ T9830] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  473.663962][ T9830] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  473.663993][ T9830]  </TASK>
[  473.989778][ T9458] veth0_macvtap: entered promiscuous mode
[  473.995062][ T9458] veth1_macvtap: entered promiscuous mode
[  474.018414][ T9458] batman_adv: batadv0: Interface activated: batadv_slave_0
[  474.024899][ T9458] batman_adv: batadv0: Interface activated: batadv_slave_1
[  474.055596][ T4327] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[  474.055849][ T4327] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[  474.055885][ T4327] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[  474.055917][ T4327] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[  474.673900][ T9839] FAULT_INJECTION: forcing a failure.
[  474.673900][ T9839] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  474.673934][ T9839] CPU: 1 UID: 0 PID: 9839 Comm: syz.0.843 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  474.673955][ T9839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  474.673967][ T9839] Call Trace:
[  474.673974][ T9839]  <TASK>
[  474.673983][ T9839]  dump_stack_lvl+0xe8/0x150
[  474.674015][ T9839]  should_fail_ex+0x46b/0x600
[  474.674051][ T9839]  _copy_to_user+0x31/0xb0
[  474.674076][ T9839]  simple_read_from_buffer+0xe1/0x170
[  474.674104][ T9839]  proc_fail_nth_read+0x1be/0x230
[  474.674131][ T9839]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  474.674158][ T9839]  ? rw_verify_area+0x2ac/0x4e0
[  474.674182][ T9839]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  474.674218][ T9839]  vfs_read+0x212/0xa80
[  474.674250][ T9839]  ? __pfx_vfs_read+0x10/0x10
[  474.674278][ T9839]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  474.674300][ T9839]  ? lockdep_hardirqs_on+0x7a/0x110
[  474.674322][ T9839]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  474.674344][ T9839]  ? mutex_lock_nested+0x152/0x1d0
[  474.674369][ T9839]  ? fdget_pos+0x252/0x320
[  474.674399][ T9839]  ksys_read+0x156/0x270
[  474.674431][ T9839]  ? __pfx_ksys_read+0x10/0x10
[  474.674455][ T9839]  ? fdget+0x189/0x1f0
[  474.674487][ T9839]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  474.674514][ T9839]  do_syscall_64+0x15f/0xf80
[  474.674535][ T9839]  ? trace_irq_disable+0x3b/0x140
[  474.674554][ T9839]  ? clear_bhb_loop+0x40/0x90
[  474.674578][ T9839]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  474.674596][ T9839] RIP: 0033:0x7f9acc22814e
[  474.674614][ T9839] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  474.674631][ T9839] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  474.674652][ T9839] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  474.674665][ T9839] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  474.674677][ T9839] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  474.674689][ T9839] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  474.674701][ T9839] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  474.674732][ T9839]  </TASK>
[  474.691176][ T9840] FAULT_INJECTION: forcing a failure.
[  474.691176][ T9840] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  474.691208][ T9840] CPU: 0 UID: 0 PID: 9840 Comm: syz.3.844 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  474.691229][ T9840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  474.691250][ T9840] Call Trace:
[  474.691258][ T9840]  <TASK>
[  474.691266][ T9840]  dump_stack_lvl+0xe8/0x150
[  474.691296][ T9840]  should_fail_ex+0x46b/0x600
[  474.691331][ T9840]  _copy_to_user+0x31/0xb0
[  474.691355][ T9840]  simple_read_from_buffer+0xe1/0x170
[  474.691382][ T9840]  proc_fail_nth_read+0x1be/0x230
[  474.691409][ T9840]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  474.691443][ T9840]  ? rw_verify_area+0x2ac/0x4e0
[  474.691467][ T9840]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  474.691491][ T9840]  vfs_read+0x212/0xa80
[  474.691523][ T9840]  ? __pfx_vfs_read+0x10/0x10
[  474.691550][ T9840]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  474.691573][ T9840]  ? lockdep_hardirqs_on+0x7a/0x110
[  474.691595][ T9840]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  474.691617][ T9840]  ? mutex_lock_nested+0x152/0x1d0
[  474.691641][ T9840]  ? fdget_pos+0x252/0x320
[  474.691671][ T9840]  ksys_read+0x156/0x270
[  474.691698][ T9840]  ? __pfx_ksys_read+0x10/0x10
[  474.691722][ T9840]  ? fdget+0x189/0x1f0
[  474.691749][ T9840]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  474.691769][ T9840]  do_syscall_64+0x15f/0xf80
[  474.691788][ T9840]  ? trace_irq_disable+0x3b/0x140
[  474.691807][ T9840]  ? clear_bhb_loop+0x40/0x90
[  474.691830][ T9840]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  474.691848][ T9840] RIP: 0033:0x7f995607814e
[  474.691866][ T9840] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  474.691881][ T9840] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  474.691900][ T9840] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  474.691914][ T9840] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  474.691926][ T9840] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  474.691938][ T9840] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  474.691949][ T9840] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  474.691981][ T9840]  </TASK>
[  474.961431][ T9842] FAULT_INJECTION: forcing a failure.
[  474.961431][ T9842] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  474.961465][ T9842] CPU: 1 UID: 0 PID: 9842 Comm: syz.4.845 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  474.961486][ T9842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  474.961498][ T9842] Call Trace:
[  474.961506][ T9842]  <TASK>
[  474.961522][ T9842]  dump_stack_lvl+0xe8/0x150
[  474.961556][ T9842]  should_fail_ex+0x46b/0x600
[  474.961590][ T9842]  _copy_to_user+0x31/0xb0
[  474.961615][ T9842]  simple_read_from_buffer+0xe1/0x170
[  474.961643][ T9842]  proc_fail_nth_read+0x1be/0x230
[  474.961669][ T9842]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  474.961696][ T9842]  ? rw_verify_area+0x2ac/0x4e0
[  474.961720][ T9842]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  474.961745][ T9842]  vfs_read+0x212/0xa80
[  474.961778][ T9842]  ? __pfx_vfs_read+0x10/0x10
[  474.961806][ T9842]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  474.961828][ T9842]  ? lockdep_hardirqs_on+0x7a/0x110
[  474.961850][ T9842]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  474.961872][ T9842]  ? mutex_lock_nested+0x152/0x1d0
[  474.961897][ T9842]  ? fdget_pos+0x252/0x320
[  474.961927][ T9842]  ksys_read+0x156/0x270
[  474.961955][ T9842]  ? __pfx_ksys_read+0x10/0x10
[  474.961979][ T9842]  ? fdget+0x189/0x1f0
[  474.962006][ T9842]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  474.962028][ T9842]  do_syscall_64+0x15f/0xf80
[  474.962048][ T9842]  ? trace_irq_disable+0x3b/0x140
[  474.962067][ T9842]  ? clear_bhb_loop+0x40/0x90
[  474.962090][ T9842]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  474.962109][ T9842] RIP: 0033:0x7f9bf0b0814e
[  474.962127][ T9842] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  474.962143][ T9842] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  474.962164][ T9842] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  474.962178][ T9842] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  474.962211][ T9842] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  474.962223][ T9842] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  474.962235][ T9842] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  474.962264][ T9842]  </TASK>
[  475.068207][ T9843] FAULT_INJECTION: forcing a failure.
[  475.068207][ T9843] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  475.068239][ T9843] CPU: 0 UID: 0 PID: 9843 Comm: syz.2.846 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  475.068260][ T9843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  475.068271][ T9843] Call Trace:
[  475.068287][ T9843]  <TASK>
[  475.068295][ T9843]  dump_stack_lvl+0xe8/0x150
[  475.068326][ T9843]  should_fail_ex+0x46b/0x600
[  475.068360][ T9843]  _copy_to_user+0x31/0xb0
[  475.068383][ T9843]  simple_read_from_buffer+0xe1/0x170
[  475.068411][ T9843]  proc_fail_nth_read+0x1be/0x230
[  475.068434][ T9843]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  475.068457][ T9843]  ? rw_verify_area+0x2ac/0x4e0
[  475.068480][ T9843]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  475.068499][ T9843]  vfs_read+0x212/0xa80
[  475.068519][ T9843]  ? __pfx_vfs_read+0x10/0x10
[  475.068536][ T9843]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  475.068548][ T9843]  ? lockdep_hardirqs_on+0x7a/0x110
[  475.068561][ T9843]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  475.068573][ T9843]  ? mutex_lock_nested+0x152/0x1d0
[  475.068587][ T9843]  ? fdget_pos+0x252/0x320
[  475.068603][ T9843]  ksys_read+0x156/0x270
[  475.068618][ T9843]  ? __pfx_ksys_read+0x10/0x10
[  475.068631][ T9843]  ? fdget+0x189/0x1f0
[  475.068646][ T9843]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  475.068657][ T9843]  do_syscall_64+0x15f/0xf80
[  475.068669][ T9843]  ? trace_irq_disable+0x3b/0x140
[  475.068679][ T9843]  ? clear_bhb_loop+0x40/0x90
[  475.068692][ T9843]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  475.068702][ T9843] RIP: 0033:0x7f0690b3814e
[  475.068713][ T9843] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  475.068722][ T9843] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  475.068734][ T9843] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  475.068742][ T9843] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  475.068748][ T9843] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  475.068754][ T9843] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
2026/04/17 23:21:11 executed programs: 843
[  475.068760][ T9843] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  475.068777][ T9843]  </TASK>
[  475.319385][   T13] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[  475.319408][   T13] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[  475.452600][ T1167] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[  475.452620][ T1167] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[  476.452257][ T9852] FAULT_INJECTION: forcing a failure.
[  476.452257][ T9852] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  476.452289][ T9852] CPU: 0 UID: 0 PID: 9852 Comm: syz.0.847 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  476.452310][ T9852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  476.452322][ T9852] Call Trace:
[  476.452329][ T9852]  <TASK>
[  476.452338][ T9852]  dump_stack_lvl+0xe8/0x150
[  476.452373][ T9852]  should_fail_ex+0x46b/0x600
[  476.452406][ T9852]  _copy_to_user+0x31/0xb0
[  476.452431][ T9852]  simple_read_from_buffer+0xe1/0x170
[  476.452459][ T9852]  proc_fail_nth_read+0x1be/0x230
[  476.452487][ T9852]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  476.452512][ T9852]  ? rw_verify_area+0x2ac/0x4e0
[  476.452537][ T9852]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  476.452561][ T9852]  vfs_read+0x212/0xa80
[  476.452595][ T9852]  ? __pfx_vfs_read+0x10/0x10
[  476.452622][ T9852]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  476.452645][ T9852]  ? lockdep_hardirqs_on+0x7a/0x110
[  476.452667][ T9852]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  476.452689][ T9852]  ? mutex_lock_nested+0x152/0x1d0
[  476.452714][ T9852]  ? fdget_pos+0x252/0x320
[  476.452745][ T9852]  ksys_read+0x156/0x270
[  476.452772][ T9852]  ? __pfx_ksys_read+0x10/0x10
[  476.452797][ T9852]  ? fdget+0x189/0x1f0
[  476.452824][ T9852]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  476.452845][ T9852]  do_syscall_64+0x15f/0xf80
[  476.452865][ T9852]  ? trace_irq_disable+0x3b/0x140
[  476.452884][ T9852]  ? clear_bhb_loop+0x40/0x90
[  476.452908][ T9852]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  476.452927][ T9852] RIP: 0033:0x7f9acc22814e
[  476.452944][ T9852] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  476.452959][ T9852] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  476.452980][ T9852] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  476.452994][ T9852] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  476.453006][ T9852] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  476.453018][ T9852] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  476.453029][ T9852] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  476.453060][ T9852]  </TASK>
[  476.550962][ T9853] FAULT_INJECTION: forcing a failure.
[  476.550962][ T9853] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  476.550993][ T9853] CPU: 1 UID: 0 PID: 9853 Comm: syz.3.848 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  476.551014][ T9853] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  476.551026][ T9853] Call Trace:
[  476.551033][ T9853]  <TASK>
[  476.551040][ T9853]  dump_stack_lvl+0xe8/0x150
[  476.551080][ T9853]  should_fail_ex+0x46b/0x600
[  476.551112][ T9853]  _copy_to_user+0x31/0xb0
[  476.551135][ T9853]  simple_read_from_buffer+0xe1/0x170
[  476.551162][ T9853]  proc_fail_nth_read+0x1be/0x230
[  476.551188][ T9853]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  476.551212][ T9853]  ? rw_verify_area+0x2ac/0x4e0
[  476.551235][ T9853]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  476.551258][ T9853]  vfs_read+0x212/0xa80
[  476.551291][ T9853]  ? __pfx_vfs_read+0x10/0x10
[  476.551316][ T9853]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  476.551337][ T9853]  ? lockdep_hardirqs_on+0x7a/0x110
[  476.551358][ T9853]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  476.551377][ T9853]  ? mutex_lock_nested+0x152/0x1d0
[  476.551402][ T9853]  ? fdget_pos+0x252/0x320
[  476.551432][ T9853]  ksys_read+0x156/0x270
[  476.551458][ T9853]  ? __pfx_ksys_read+0x10/0x10
[  476.551483][ T9853]  ? fdget+0x189/0x1f0
[  476.551509][ T9853]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  476.551529][ T9853]  do_syscall_64+0x15f/0xf80
[  476.551550][ T9853]  ? trace_irq_disable+0x3b/0x140
[  476.551569][ T9853]  ? clear_bhb_loop+0x40/0x90
[  476.551593][ T9853]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  476.551612][ T9853] RIP: 0033:0x7f995607814e
[  476.551630][ T9853] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  476.551645][ T9853] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  476.551665][ T9853] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  476.551678][ T9853] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  476.551691][ T9853] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  476.551703][ T9853] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  476.551714][ T9853] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  476.551746][ T9853]  </TASK>
[  476.938885][ T9859] FAULT_INJECTION: forcing a failure.
[  476.938885][ T9859] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  476.938917][ T9859] CPU: 1 UID: 0 PID: 9859 Comm: syz.1.742 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  476.938938][ T9859] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  476.938949][ T9859] Call Trace:
[  476.938956][ T9859]  <TASK>
[  476.938964][ T9859]  dump_stack_lvl+0xe8/0x150
[  476.938996][ T9859]  should_fail_ex+0x46b/0x600
[  476.939041][ T9859]  _copy_to_user+0x31/0xb0
[  476.939064][ T9859]  simple_read_from_buffer+0xe1/0x170
[  476.939090][ T9859]  proc_fail_nth_read+0x1be/0x230
[  476.939113][ T9859]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  476.939140][ T9859]  ? rw_verify_area+0x2ac/0x4e0
[  476.939163][ T9859]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  476.939187][ T9859]  vfs_read+0x212/0xa80
[  476.939218][ T9859]  ? __pfx_vfs_read+0x10/0x10
[  476.939244][ T9859]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  476.939266][ T9859]  ? lockdep_hardirqs_on+0x7a/0x110
[  476.939287][ T9859]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  476.939308][ T9859]  ? mutex_lock_nested+0x152/0x1d0
[  476.939331][ T9859]  ? fdget_pos+0x252/0x320
[  476.939367][ T9859]  ksys_read+0x156/0x270
[  476.939393][ T9859]  ? __pfx_ksys_read+0x10/0x10
[  476.939416][ T9859]  ? fdget+0x189/0x1f0
[  476.939448][ T9859]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  476.939468][ T9859]  do_syscall_64+0x15f/0xf80
[  476.939488][ T9859]  ? trace_irq_disable+0x3b/0x140
[  476.939506][ T9859]  ? clear_bhb_loop+0x40/0x90
[  476.939528][ T9859]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  476.939545][ T9859] RIP: 0033:0x7f0d1292814e
[  476.939563][ T9859] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  476.939579][ T9859] RSP: 002b:00007f0d11bbcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  476.939604][ T9859] RAX: ffffffffffffffda RBX: 00007f0d11bbd6c0 RCX: 00007f0d1292814e
[  476.939617][ T9859] RDX: 000000000000000f RSI: 00007f0d11bbd0a0 RDI: 0000000000000005
[  476.939628][ T9859] RBP: 00007f0d11bbd090 R08: 0000000000000000 R09: 0000000000000000
[  476.939639][ T9859] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  476.939649][ T9859] R13: 0000000000000000 R14: 00007f0d12b36058 R15: 00007ffec51e8278
[  476.939678][ T9859]  </TASK>
[  477.386922][ T9861] FAULT_INJECTION: forcing a failure.
[  477.386922][ T9861] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  477.386954][ T9861] CPU: 1 UID: 0 PID: 9861 Comm: syz.2.849 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  477.386975][ T9861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  477.386988][ T9861] Call Trace:
[  477.386995][ T9861]  <TASK>
[  477.387003][ T9861]  dump_stack_lvl+0xe8/0x150
[  477.387036][ T9861]  should_fail_ex+0x46b/0x600
[  477.387070][ T9861]  _copy_to_user+0x31/0xb0
[  477.387095][ T9861]  simple_read_from_buffer+0xe1/0x170
[  477.387122][ T9861]  proc_fail_nth_read+0x1be/0x230
[  477.387150][ T9861]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  477.387176][ T9861]  ? rw_verify_area+0x2ac/0x4e0
[  477.387209][ T9861]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  477.387233][ T9861]  vfs_read+0x212/0xa80
[  477.387267][ T9861]  ? __pfx_vfs_read+0x10/0x10
[  477.387294][ T9861]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  477.387317][ T9861]  ? lockdep_hardirqs_on+0x7a/0x110
[  477.387338][ T9861]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  477.387360][ T9861]  ? mutex_lock_nested+0x152/0x1d0
[  477.387385][ T9861]  ? fdget_pos+0x252/0x320
[  477.387416][ T9861]  ksys_read+0x156/0x270
[  477.387445][ T9861]  ? __pfx_ksys_read+0x10/0x10
[  477.387470][ T9861]  ? fdget+0x189/0x1f0
[  477.387497][ T9861]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  477.387518][ T9861]  do_syscall_64+0x15f/0xf80
[  477.387539][ T9861]  ? trace_irq_disable+0x3b/0x140
[  477.387558][ T9861]  ? clear_bhb_loop+0x40/0x90
[  477.387586][ T9861]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  477.387605][ T9861] RIP: 0033:0x7f0690b3814e
[  477.387623][ T9861] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  477.387638][ T9861] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  477.387659][ T9861] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  477.387672][ T9861] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  477.387682][ T9861] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  477.387693][ T9861] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  477.387703][ T9861] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  477.387728][ T9861]  </TASK>
[  477.388617][ T9862] FAULT_INJECTION: forcing a failure.
[  477.388617][ T9862] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  477.388644][ T9862] CPU: 0 UID: 0 PID: 9862 Comm: syz.4.850 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  477.388664][ T9862] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  477.388674][ T9862] Call Trace:
[  477.388681][ T9862]  <TASK>
[  477.388688][ T9862]  dump_stack_lvl+0xe8/0x150
[  477.388716][ T9862]  should_fail_ex+0x46b/0x600
[  477.388747][ T9862]  _copy_to_user+0x31/0xb0
[  477.388769][ T9862]  simple_read_from_buffer+0xe1/0x170
[  477.388795][ T9862]  proc_fail_nth_read+0x1be/0x230
[  477.388819][ T9862]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  477.388843][ T9862]  ? rw_verify_area+0x2ac/0x4e0
[  477.388866][ T9862]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  477.388888][ T9862]  vfs_read+0x212/0xa80
[  477.388919][ T9862]  ? __pfx_vfs_read+0x10/0x10
[  477.388955][ T9862]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  477.388978][ T9862]  ? lockdep_hardirqs_on+0x7a/0x110
[  477.388999][ T9862]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  477.389020][ T9862]  ? mutex_lock_nested+0x152/0x1d0
[  477.389044][ T9862]  ? fdget_pos+0x252/0x320
[  477.389070][ T9862]  ksys_read+0x156/0x270
[  477.389094][ T9862]  ? __pfx_ksys_read+0x10/0x10
[  477.389116][ T9862]  ? fdget+0x189/0x1f0
[  477.389140][ T9862]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  477.389159][ T9862]  do_syscall_64+0x15f/0xf80
[  477.389178][ T9862]  ? trace_irq_disable+0x3b/0x140
[  477.389195][ T9862]  ? clear_bhb_loop+0x40/0x90
[  477.389217][ T9862]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  477.389233][ T9862] RIP: 0033:0x7f9bf0b0814e
[  477.389249][ T9862] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  477.389263][ T9862] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  477.389282][ T9862] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  477.389295][ T9862] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  477.389305][ T9862] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  477.389317][ T9862] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  477.389328][ T9862] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  477.389358][ T9862]  </TASK>
[  478.379604][ T9873] FAULT_INJECTION: forcing a failure.
[  478.379604][ T9873] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  478.379637][ T9873] CPU: 0 UID: 0 PID: 9873 Comm: syz.3.852 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  478.379657][ T9873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  478.379670][ T9873] Call Trace:
[  478.379677][ T9873]  <TASK>
[  478.379686][ T9873]  dump_stack_lvl+0xe8/0x150
[  478.379720][ T9873]  should_fail_ex+0x46b/0x600
[  478.379754][ T9873]  _copy_to_user+0x31/0xb0
[  478.379780][ T9873]  simple_read_from_buffer+0xe1/0x170
[  478.379807][ T9873]  proc_fail_nth_read+0x1be/0x230
[  478.379834][ T9873]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  478.379860][ T9873]  ? rw_verify_area+0x2ac/0x4e0
[  478.379885][ T9873]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  478.379909][ T9873]  vfs_read+0x212/0xa80
[  478.379942][ T9873]  ? __pfx_vfs_read+0x10/0x10
[  478.379976][ T9873]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  478.379999][ T9873]  ? lockdep_hardirqs_on+0x7a/0x110
[  478.380020][ T9873]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  478.380042][ T9873]  ? mutex_lock_nested+0x152/0x1d0
[  478.380067][ T9873]  ? fdget_pos+0x252/0x320
[  478.380097][ T9873]  ksys_read+0x156/0x270
[  478.380125][ T9873]  ? __pfx_ksys_read+0x10/0x10
[  478.380150][ T9873]  ? fdget+0x189/0x1f0
[  478.380176][ T9873]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  478.380197][ T9873]  do_syscall_64+0x15f/0xf80
[  478.380218][ T9873]  ? trace_irq_disable+0x3b/0x140
[  478.380236][ T9873]  ? clear_bhb_loop+0x40/0x90
[  478.380260][ T9873]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  478.380279][ T9873] RIP: 0033:0x7f995607814e
[  478.380297][ T9873] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  478.380317][ T9873] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  478.380343][ T9873] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  478.380357][ T9873] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  478.380368][ T9873] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  478.380380][ T9873] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  478.380391][ T9873] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  478.380422][ T9873]  </TASK>
[  478.543519][ T9874] FAULT_INJECTION: forcing a failure.
[  478.543519][ T9874] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  478.543550][ T9874] CPU: 0 UID: 0 PID: 9874 Comm: syz.0.851 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  478.543571][ T9874] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  478.543583][ T9874] Call Trace:
[  478.543590][ T9874]  <TASK>
[  478.543598][ T9874]  dump_stack_lvl+0xe8/0x150
[  478.543631][ T9874]  should_fail_ex+0x46b/0x600
[  478.543665][ T9874]  _copy_to_user+0x31/0xb0
[  478.543691][ T9874]  simple_read_from_buffer+0xe1/0x170
[  478.543719][ T9874]  proc_fail_nth_read+0x1be/0x230
[  478.543747][ T9874]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  478.543773][ T9874]  ? rw_verify_area+0x2ac/0x4e0
[  478.543797][ T9874]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  478.543822][ T9874]  vfs_read+0x212/0xa80
[  478.543855][ T9874]  ? __pfx_vfs_read+0x10/0x10
[  478.543880][ T9874]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  478.543902][ T9874]  ? lockdep_hardirqs_on+0x7a/0x110
[  478.543924][ T9874]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  478.543945][ T9874]  ? mutex_lock_nested+0x152/0x1d0
[  478.543970][ T9874]  ? fdget_pos+0x252/0x320
[  478.544001][ T9874]  ksys_read+0x156/0x270
[  478.544028][ T9874]  ? __pfx_ksys_read+0x10/0x10
[  478.544053][ T9874]  ? fdget+0x189/0x1f0
[  478.544080][ T9874]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  478.544101][ T9874]  do_syscall_64+0x15f/0xf80
[  478.544128][ T9874]  ? trace_irq_disable+0x3b/0x140
[  478.544147][ T9874]  ? clear_bhb_loop+0x40/0x90
[  478.544171][ T9874]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  478.544190][ T9874] RIP: 0033:0x7f9acc22814e
[  478.544208][ T9874] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  478.544224][ T9874] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  478.544245][ T9874] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  478.544258][ T9874] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  478.544270][ T9874] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  478.544282][ T9874] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  478.544294][ T9874] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  478.544325][ T9874]  </TASK>
[  478.547359][ T9875] FAULT_INJECTION: forcing a failure.
[  478.547359][ T9875] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  478.547388][ T9875] CPU: 0 UID: 0 PID: 9875 Comm: syz.2.854 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  478.547409][ T9875] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  478.547421][ T9875] Call Trace:
[  478.547429][ T9875]  <TASK>
[  478.547436][ T9875]  dump_stack_lvl+0xe8/0x150
[  478.547469][ T9875]  should_fail_ex+0x46b/0x600
[  478.547503][ T9875]  _copy_to_user+0x31/0xb0
[  478.547528][ T9875]  simple_read_from_buffer+0xe1/0x170
[  478.547556][ T9875]  proc_fail_nth_read+0x1be/0x230
[  478.547583][ T9875]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  478.547609][ T9875]  ? rw_verify_area+0x2ac/0x4e0
[  478.547633][ T9875]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  478.547658][ T9875]  vfs_read+0x212/0xa80
[  478.547690][ T9875]  ? __pfx_vfs_read+0x10/0x10
[  478.547718][ T9875]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  478.547741][ T9875]  ? lockdep_hardirqs_on+0x7a/0x110
[  478.547762][ T9875]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  478.547785][ T9875]  ? mutex_lock_nested+0x152/0x1d0
[  478.547809][ T9875]  ? fdget_pos+0x252/0x320
[  478.547840][ T9875]  ksys_read+0x156/0x270
[  478.547867][ T9875]  ? __pfx_ksys_read+0x10/0x10
[  478.547892][ T9875]  ? fdget+0x189/0x1f0
[  478.547918][ T9875]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  478.547939][ T9875]  do_syscall_64+0x15f/0xf80
[  478.547960][ T9875]  ? trace_irq_disable+0x3b/0x140
[  478.547979][ T9875]  ? clear_bhb_loop+0x40/0x90
[  478.548002][ T9875]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  478.548021][ T9875] RIP: 0033:0x7f0690b3814e
[  478.548038][ T9875] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  478.548054][ T9875] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  478.548074][ T9875] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  478.548087][ T9875] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  478.548100][ T9875] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  478.548118][ T9875] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  478.548130][ T9875] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  478.548161][ T9875]  </TASK>
[  478.776199][ T9876] FAULT_INJECTION: forcing a failure.
[  478.776199][ T9876] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  478.776231][ T9876] CPU: 0 UID: 0 PID: 9876 Comm: syz.1.853 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  478.776252][ T9876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  478.776264][ T9876] Call Trace:
[  478.776272][ T9876]  <TASK>
[  478.776280][ T9876]  dump_stack_lvl+0xe8/0x150
[  478.776313][ T9876]  should_fail_ex+0x46b/0x600
[  478.776347][ T9876]  _copy_to_user+0x31/0xb0
[  478.776374][ T9876]  simple_read_from_buffer+0xe1/0x170
[  478.776397][ T9876]  proc_fail_nth_read+0x1be/0x230
[  478.776422][ T9876]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  478.776448][ T9876]  ? rw_verify_area+0x2ac/0x4e0
[  478.776472][ T9876]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  478.776505][ T9876]  vfs_read+0x212/0xa80
[  478.776545][ T9876]  ? __pfx_vfs_read+0x10/0x10
[  478.776573][ T9876]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  478.776596][ T9876]  ? lockdep_hardirqs_on+0x7a/0x110
[  478.776618][ T9876]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  478.776640][ T9876]  ? mutex_lock_nested+0x152/0x1d0
[  478.776665][ T9876]  ? fdget_pos+0x252/0x320
[  478.776696][ T9876]  ksys_read+0x156/0x270
[  478.776723][ T9876]  ? __pfx_ksys_read+0x10/0x10
[  478.776747][ T9876]  ? fdget+0x189/0x1f0
[  478.776774][ T9876]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  478.776796][ T9876]  do_syscall_64+0x15f/0xf80
[  478.776824][ T9876]  ? trace_irq_disable+0x3b/0x140
[  478.776843][ T9876]  ? clear_bhb_loop+0x40/0x90
[  478.776868][ T9876]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  478.776886][ T9876] RIP: 0033:0x7f0d1292814e
[  478.776905][ T9876] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  478.776921][ T9876] RSP: 002b:00007f0d11bbcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  478.776941][ T9876] RAX: ffffffffffffffda RBX: 00007f0d11bbd6c0 RCX: 00007f0d1292814e
[  478.776955][ T9876] RDX: 000000000000000f RSI: 00007f0d11bbd0a0 RDI: 0000000000000005
[  478.776967][ T9876] RBP: 00007f0d11bbd090 R08: 0000000000000000 R09: 0000000000000000
[  478.776979][ T9876] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  478.776990][ T9876] R13: 0000000000000000 R14: 00007f0d12b36058 R15: 00007ffec51e8278
[  478.777020][ T9876]  </TASK>
[  478.977252][ T9877] FAULT_INJECTION: forcing a failure.
[  478.977252][ T9877] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  478.977284][ T9877] CPU: 0 UID: 0 PID: 9877 Comm: syz.4.855 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  478.977305][ T9877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  478.977317][ T9877] Call Trace:
[  478.977326][ T9877]  <TASK>
[  478.977333][ T9877]  dump_stack_lvl+0xe8/0x150
[  478.977368][ T9877]  should_fail_ex+0x46b/0x600
[  478.977403][ T9877]  _copy_to_user+0x31/0xb0
[  478.977428][ T9877]  simple_read_from_buffer+0xe1/0x170
[  478.977456][ T9877]  proc_fail_nth_read+0x1be/0x230
[  478.977483][ T9877]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  478.977508][ T9877]  ? rw_verify_area+0x2ac/0x4e0
[  478.977533][ T9877]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  478.977557][ T9877]  vfs_read+0x212/0xa80
[  478.977594][ T9877]  ? __pfx_vfs_read+0x10/0x10
[  478.977621][ T9877]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  478.977644][ T9877]  ? lockdep_hardirqs_on+0x7a/0x110
[  478.977665][ T9877]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  478.977686][ T9877]  ? mutex_lock_nested+0x152/0x1d0
[  478.977710][ T9877]  ? fdget_pos+0x252/0x320
[  478.977741][ T9877]  ksys_read+0x156/0x270
[  478.977768][ T9877]  ? __pfx_ksys_read+0x10/0x10
[  478.977792][ T9877]  ? fdget+0x189/0x1f0
[  478.977819][ T9877]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  478.977839][ T9877]  do_syscall_64+0x15f/0xf80
[  478.977859][ T9877]  ? trace_irq_disable+0x3b/0x140
[  478.977881][ T9877]  ? clear_bhb_loop+0x40/0x90
[  478.977904][ T9877]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  478.977923][ T9877] RIP: 0033:0x7f9bf0b0814e
[  478.977941][ T9877] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  478.977958][ T9877] RSP: 002b:00007f9befd9cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  478.977978][ T9877] RAX: ffffffffffffffda RBX: 00007f9befd9d6c0 RCX: 00007f9bf0b0814e
[  478.977992][ T9877] RDX: 000000000000000f RSI: 00007f9befd9d0a0 RDI: 0000000000000005
[  478.978004][ T9877] RBP: 00007f9befd9d090 R08: 0000000000000000 R09: 0000000000000000
[  478.978016][ T9877] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  478.978027][ T9877] R13: 0000000000000000 R14: 00007f9bf0d16058 R15: 00007ffe3fcfe498
[  478.978058][ T9877]  </TASK>
[  479.924168][ T9885] FAULT_INJECTION: forcing a failure.
[  479.924168][ T9885] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  479.924200][ T9885] CPU: 0 UID: 0 PID: 9885 Comm: syz.0.857 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  479.924222][ T9885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  479.924233][ T9885] Call Trace:
[  479.924241][ T9885]  <TASK>
[  479.924250][ T9885]  dump_stack_lvl+0xe8/0x150
[  479.924283][ T9885]  should_fail_ex+0x46b/0x600
[  479.924317][ T9885]  _copy_to_user+0x31/0xb0
[  479.924343][ T9885]  simple_read_from_buffer+0xe1/0x170
[  479.924370][ T9885]  proc_fail_nth_read+0x1be/0x230
[  479.924396][ T9885]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  479.924422][ T9885]  ? rw_verify_area+0x2ac/0x4e0
[  479.924447][ T9885]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  479.924472][ T9885]  vfs_read+0x212/0xa80
[  479.924505][ T9885]  ? __pfx_vfs_read+0x10/0x10
[  479.924532][ T9885]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  479.924554][ T9885]  ? lockdep_hardirqs_on+0x7a/0x110
[  479.924576][ T9885]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  479.924598][ T9885]  ? mutex_lock_nested+0x152/0x1d0
[  479.924623][ T9885]  ? fdget_pos+0x252/0x320
[  479.924654][ T9885]  ksys_read+0x156/0x270
[  479.924681][ T9885]  ? __pfx_ksys_read+0x10/0x10
[  479.924706][ T9885]  ? fdget+0x189/0x1f0
[  479.924733][ T9885]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  479.924761][ T9885]  do_syscall_64+0x15f/0xf80
[  479.924782][ T9885]  ? trace_irq_disable+0x3b/0x140
[  479.924801][ T9885]  ? clear_bhb_loop+0x40/0x90
[  479.924825][ T9885]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  479.924843][ T9885] RIP: 0033:0x7f9acc22814e
[  479.924861][ T9885] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  479.924877][ T9885] RSP: 002b:00007f9acb4bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  479.924898][ T9885] RAX: ffffffffffffffda RBX: 00007f9acb4bd6c0 RCX: 00007f9acc22814e
[  479.924911][ T9885] RDX: 000000000000000f RSI: 00007f9acb4bd0a0 RDI: 0000000000000005
[  479.924924][ T9885] RBP: 00007f9acb4bd090 R08: 0000000000000000 R09: 0000000000000000
[  479.924936][ T9885] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  479.924947][ T9885] R13: 0000000000000000 R14: 00007f9acc436058 R15: 00007ffc78eae1e8
[  479.924978][ T9885]  </TASK>
[  479.979939][ T9886] FAULT_INJECTION: forcing a failure.
[  479.979939][ T9886] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  479.979970][ T9886] CPU: 0 UID: 0 PID: 9886 Comm: syz.2.858 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  479.979997][ T9886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  479.980009][ T9886] Call Trace:
[  479.980016][ T9886]  <TASK>
[  479.980024][ T9886]  dump_stack_lvl+0xe8/0x150
[  479.980056][ T9886]  should_fail_ex+0x46b/0x600
[  479.980088][ T9886]  _copy_to_user+0x31/0xb0
[  479.980112][ T9886]  simple_read_from_buffer+0xe1/0x170
[  479.980138][ T9886]  proc_fail_nth_read+0x1be/0x230
[  479.980164][ T9886]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  479.980189][ T9886]  ? rw_verify_area+0x2ac/0x4e0
[  479.980212][ T9886]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  479.980236][ T9886]  vfs_read+0x212/0xa80
[  479.980267][ T9886]  ? __pfx_vfs_read+0x10/0x10
[  479.980293][ T9886]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  479.980313][ T9886]  ? lockdep_hardirqs_on+0x7a/0x110
[  479.980334][ T9886]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  479.980355][ T9886]  ? mutex_lock_nested+0x152/0x1d0
[  479.980379][ T9886]  ? fdget_pos+0x252/0x320
[  479.980408][ T9886]  ksys_read+0x156/0x270
[  479.980434][ T9886]  ? __pfx_ksys_read+0x10/0x10
[  479.980458][ T9886]  ? fdget+0x189/0x1f0
[  479.980483][ T9886]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  479.980503][ T9886]  do_syscall_64+0x15f/0xf80
[  479.980521][ T9886]  ? trace_irq_disable+0x3b/0x140
[  479.980539][ T9886]  ? clear_bhb_loop+0x40/0x90
[  479.980561][ T9886]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  479.980579][ T9886] RIP: 0033:0x7f0690b3814e
[  479.980596][ T9886] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  479.980612][ T9886] RSP: 002b:00007f068fdccfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  479.980630][ T9886] RAX: ffffffffffffffda RBX: 00007f068fdcd6c0 RCX: 00007f0690b3814e
[  479.980643][ T9886] RDX: 000000000000000f RSI: 00007f068fdcd0a0 RDI: 0000000000000005
[  479.980654][ T9886] RBP: 00007f068fdcd090 R08: 0000000000000000 R09: 0000000000000000
[  479.980664][ T9886] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  479.980674][ T9886] R13: 0000000000000000 R14: 00007f0690d46058 R15: 00007ffe180ecf98
[  479.980701][ T9886]  </TASK>
[  480.215447][ T9891] FAULT_INJECTION: forcing a failure.
[  480.215447][ T9891] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  480.215477][ T9891] CPU: 1 UID: 0 PID: 9891 Comm: syz.3.856 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  480.215497][ T9891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  480.215508][ T9891] Call Trace:
[  480.215516][ T9891]  <TASK>
[  480.215523][ T9891]  dump_stack_lvl+0xe8/0x150
[  480.215555][ T9891]  should_fail_ex+0x46b/0x600
[  480.215586][ T9891]  _copy_to_user+0x31/0xb0
[  480.215608][ T9891]  simple_read_from_buffer+0xe1/0x170
[  480.215636][ T9891]  proc_fail_nth_read+0x1be/0x230
[  480.215662][ T9891]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  480.215688][ T9891]  ? rw_verify_area+0x2ac/0x4e0
[  480.215713][ T9891]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  480.215736][ T9891]  vfs_read+0x212/0xa80
[  480.215779][ T9891]  ? __pfx_vfs_read+0x10/0x10
[  480.215806][ T9891]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  480.215828][ T9891]  ? lockdep_hardirqs_on+0x7a/0x110
[  480.215850][ T9891]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  480.215871][ T9891]  ? mutex_lock_nested+0x152/0x1d0
[  480.215895][ T9891]  ? fdget_pos+0x252/0x320
[  480.215924][ T9891]  ksys_read+0x156/0x270
[  480.215949][ T9891]  ? __pfx_ksys_read+0x10/0x10
[  480.215972][ T9891]  ? fdget+0x189/0x1f0
[  480.215997][ T9891]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  480.216017][ T9891]  do_syscall_64+0x15f/0xf80
[  480.216036][ T9891]  ? trace_irq_disable+0x3b/0x140
[  480.216054][ T9891]  ? clear_bhb_loop+0x40/0x90
[  480.216077][ T9891]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  480.216093][ T9891] RIP: 0033:0x7f995607814e
[  480.216111][ T9891] 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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  480.216127][ T9891] RSP: 002b:00007f995530cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  480.216147][ T9891] RAX: ffffffffffffffda RBX: 00007f995530d6c0 RCX: 00007f995607814e
[  480.216160][ T9891] RDX: 000000000000000f RSI: 00007f995530d0a0 RDI: 0000000000000005
[  480.216172][ T9891] RBP: 00007f995530d090 R08: 0000000000000000 R09: 0000000000000000
[  480.216184][ T9891] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  480.216195][ T9891] R13: 0000000000000000 R14: 00007f9956286058 R15: 00007fff9ab23118
[  480.216226][ T9891]  </TASK>
[  480.562637][ T9893] FAULT_INJECTION: forcing a failure.
[  480.562637][ T9893] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  480.562670][ T9893] CPU: 0 UID: 0 PID: 9893 Comm: syz.1.859 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  480.562691][ T9893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[  480.562701][ T9893] Call Trace:
[  480.562709][ T9893]  <TASK>
[  480.562718][ T9893]  dump_stack_lvl+0xe8/0x150
[  480.562750][ T9893]  should_fail_ex+0x46b/0x600
[  480.562785][ T9893]  _copy_to_user+0x31/0xb0
[  480.562810][ T9893]  simple_read_from_buffer+0xe1/0x170
[  480.562838][ T9893]  proc_fail_nth_read+0x1be/0x230
[  480.562865][ T9893]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  480.562891][ T9893]  ? rw_verify_area+0x2ac/0x4e0
[  480.562916][ T9893]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  480.562940][ T9893]  vfs_read+0x212/0xa80
[  480.562979][ T9893]  ? __pfx_vfs_read+0x10/0x10
[  480.563006][ T9893]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  480.563029][ T9893]  ? lockdep_hardirqs_on+0x7a/0x110
[  480.563052][ T9893]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  480.563074][ T9893]  ? mutex_lock_nested+0x152/0x1d0
[  480.563099][ T9893]  ? fdget_pos+0x252/0x320
[  480.563128][ T9893]  ksys_read+0x156/0x270
[  480.563156][ T9893]  ? __pfx_ksys_read+0x10/0x10
[  480.563180][ T9893]  ? fdget+0x189/0x1f0
[  480.563207][ T9893]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  480.563228][ T9893]  do_syscall_64+0x15f/0xf80
[  480.563249][ T9893]  ? trace_irq_disable+0x3b/0x140
[  480.563268][ T9893]  ? clear_bhb_loop+0x40/0x90
[  480.563291][ T9893]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  480.563310][ T9893] RIP: 0033:0x7f0d1292814e