] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  283.830800][ T7732] R13: 0000000000000000 R14: 00007f051fbb5fa0 R15: 00007ffc1cfc12c8
[  283.830840][ T7732]  </TASK>
[  283.875144][ T7748] FAULT_INJECTION: forcing a failure.
[  283.875144][ T7748] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  283.877189][ T7747] CPU: 0 UID: 0 PID: 7747 Comm: syz.0.696 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  283.877224][ T7747] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  283.877243][ T7747] Call Trace:
[  283.877254][ T7747]  <TASK>
[  283.877267][ T7747]  dump_stack_lvl+0x189/0x250
[  283.877310][ T7747]  ? __pfx____ratelimit+0x10/0x10
[  283.877350][ T7747]  ? __pfx_dump_stack_lvl+0x10/0x10
[  283.877396][ T7747]  ? __pfx__printk+0x10/0x10
[  283.877439][ T7747]  should_fail_ex+0x414/0x560
[  283.877477][ T7747]  _copy_to_user+0x31/0xb0
[  283.877506][ T7747]  simple_read_from_buffer+0xe1/0x170
[  283.877545][ T7747]  proc_fail_nth_read+0x1df/0x250
[  283.877587][ T7747]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  283.877627][ T7747]  ? rw_verify_area+0x258/0x650
[  283.877654][ T7747]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  283.877693][ T7747]  vfs_read+0x200/0x980
[  283.877728][ T7747]  ? __pfx___mutex_lock+0x10/0x10
[  283.877753][ T7747]  ? __pfx_vfs_read+0x10/0x10
[  283.877783][ T7747]  ? __fget_files+0x2a/0x420
[  283.877823][ T7747]  ? __fget_files+0x3a0/0x420
[  283.877855][ T7747]  ? __fget_files+0x2a/0x420
[  283.877900][ T7747]  ksys_read+0x145/0x250
[  283.877933][ T7747]  ? __pfx_ksys_read+0x10/0x10
[  283.877962][ T7747]  ? rcu_is_watching+0x15/0xb0
[  283.878008][ T7747]  ? trace_sys_enter+0x25/0x120
[  283.878044][ T7747]  do_syscall_64+0xfa/0x3b0
[  283.878063][ T7747]  ? lockdep_hardirqs_on+0x9c/0x150
[  283.878097][ T7747]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  283.878120][ T7747]  ? clear_bhb_loop+0x60/0xb0
[  283.878148][ T7747]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  283.878170][ T7747] RIP: 0033:0x7fd24178d33c
[  283.878188][ T7747] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  283.878206][ T7747] RSP: 002b:00007fd242652030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  283.878234][ T7747] RAX: ffffffffffffffda RBX: 00007fd2419b6080 RCX: 00007fd24178d33c
[  283.878251][ T7747] RDX: 000000000000000f RSI: 00007fd2426520a0 RDI: 0000000000000005
[  283.878267][ T7747] RBP: 00007fd242652090 R08: 0000000000000000 R09: 0000000000000000
[  283.878282][ T7747] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  283.878295][ T7747] R13: 0000000000000001 R14: 00007fd2419b6080 R15: 00007ffeb781b388
[  283.878330][ T7747]  </TASK>
[  283.879935][ T7749] FAULT_INJECTION: forcing a failure.
[  283.879935][ T7749] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  283.904546][ T7748] CPU: 1 UID: 0 PID: 7748 Comm: syz.1.698 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  283.904594][ T7748] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  283.904608][ T7748] Call Trace:
[  283.904618][ T7748]  <TASK>
[  283.904628][ T7748]  dump_stack_lvl+0x189/0x250
[  283.904669][ T7748]  ? __pfx____ratelimit+0x10/0x10
[  283.904706][ T7748]  ? __pfx_dump_stack_lvl+0x10/0x10
[  283.904761][ T7748]  ? __pfx__printk+0x10/0x10
[  283.904802][ T7748]  should_fail_ex+0x414/0x560
[  283.904852][ T7748]  _copy_to_user+0x31/0xb0
[  283.904878][ T7748]  simple_read_from_buffer+0xe1/0x170
[  283.904911][ T7748]  proc_fail_nth_read+0x1df/0x250
[  283.904949][ T7748]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  283.904985][ T7748]  ? rw_verify_area+0x258/0x650
[  283.905009][ T7748]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  283.905044][ T7748]  vfs_read+0x200/0x980
[  283.905075][ T7748]  ? __pfx___mutex_lock+0x10/0x10
[  283.905098][ T7748]  ? __pfx_vfs_read+0x10/0x10
[  283.905134][ T7748]  ? __fget_files+0x2a/0x420
[  283.905170][ T7748]  ? __fget_files+0x3a0/0x420
[  283.905199][ T7748]  ? __fget_files+0x2a/0x420
[  283.905241][ T7748]  ksys_read+0x145/0x250
[  283.905271][ T7748]  ? __pfx_ksys_read+0x10/0x10
[  283.905296][ T7748]  ? rcu_is_watching+0x15/0xb0
[  283.905331][ T7748]  ? trace_sys_enter+0x25/0x120
[  283.905366][ T7748]  do_syscall_64+0xfa/0x3b0
[  283.905386][ T7748]  ? lockdep_hardirqs_on+0x9c/0x150
[  283.905419][ T7748]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  283.905460][ T7748]  ? clear_bhb_loop+0x60/0xb0
[  283.905490][ T7748]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  283.905514][ T7748] RIP: 0033:0x7f5cadb8d33c
[  283.905537][ T7748] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  283.905559][ T7748] RSP: 002b:00007f5cae930030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  283.905584][ T7748] RAX: ffffffffffffffda RBX: 00007f5caddb6080 RCX: 00007f5cadb8d33c
[  283.905615][ T7748] RDX: 000000000000000f RSI: 00007f5cae9300a0 RDI: 0000000000000005
[  283.905630][ T7748] RBP: 00007f5cae930090 R08: 0000000000000000 R09: 0000000000000000
2025/06/13 12:03:12 executed programs: 697
[  283.905645][ T7748] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  283.905658][ T7748] R13: 0000000000000001 R14: 00007f5caddb6080 R15: 00007ffdb22ecb98
[  283.905695][ T7748]  </TASK>
[  284.203262][ T7751] FAULT_INJECTION: forcing a failure.
[  284.203262][ T7751] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  284.233265][ T7749] CPU: 0 UID: 0 PID: 7749 Comm: syz.2.697 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  284.233300][ T7749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  284.233316][ T7749] Call Trace:
[  284.233327][ T7749]  <TASK>
[  284.233339][ T7749]  dump_stack_lvl+0x189/0x250
[  284.233389][ T7749]  ? __pfx____ratelimit+0x10/0x10
[  284.233425][ T7749]  ? __pfx_dump_stack_lvl+0x10/0x10
[  284.233459][ T7749]  ? __pfx__printk+0x10/0x10
[  284.233496][ T7749]  should_fail_ex+0x414/0x560
[  284.233531][ T7749]  _copy_to_user+0x31/0xb0
[  284.233557][ T7749]  simple_read_from_buffer+0xe1/0x170
[  284.233593][ T7749]  proc_fail_nth_read+0x1df/0x250
[  284.233630][ T7749]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  284.233668][ T7749]  ? rw_verify_area+0x258/0x650
[  284.233693][ T7749]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  284.233727][ T7749]  vfs_read+0x200/0x980
[  284.233759][ T7749]  ? __pfx___mutex_lock+0x10/0x10
[  284.233779][ T7749]  ? __pfx_vfs_read+0x10/0x10
[  284.233808][ T7749]  ? __fget_files+0x2a/0x420
[  284.233843][ T7749]  ? __fget_files+0x3a0/0x420
[  284.233871][ T7749]  ? __fget_files+0x2a/0x420
[  284.233913][ T7749]  ksys_read+0x145/0x250
[  284.233942][ T7749]  ? __pfx_ksys_read+0x10/0x10
[  284.233968][ T7749]  ? rcu_is_watching+0x15/0xb0
[  284.234002][ T7749]  ? trace_sys_enter+0x25/0x120
[  284.234039][ T7749]  do_syscall_64+0xfa/0x3b0
[  284.234058][ T7749]  ? lockdep_hardirqs_on+0x9c/0x150
[  284.234092][ T7749]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  284.234115][ T7749]  ? clear_bhb_loop+0x60/0xb0
[  284.234143][ T7749]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  284.234165][ T7749] RIP: 0033:0x7fb686f8d33c
[  284.234187][ T7749] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  284.234207][ T7749] RSP: 002b:00007fb6861dd030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  284.234231][ T7749] RAX: ffffffffffffffda RBX: 00007fb6871b6080 RCX: 00007fb686f8d33c
[  284.234254][ T7749] RDX: 000000000000000f RSI: 00007fb6861dd0a0 RDI: 0000000000000005
[  284.234267][ T7749] RBP: 00007fb6861dd090 R08: 0000000000000000 R09: 0000000000000000
[  284.234282][ T7749] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  284.234297][ T7749] R13: 0000000000000001 R14: 00007fb6871b6080 R15: 00007ffdd6620bb8
[  284.234333][ T7749]  </TASK>
[  284.850689][ T7758] FAULT_INJECTION: forcing a failure.
[  284.850689][ T7758] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  284.857206][ T7751] CPU: 1 UID: 0 PID: 7751 Comm: syz.3.699 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  284.857240][ T7751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  284.857258][ T7751] Call Trace:
[  284.857268][ T7751]  <TASK>
[  284.857280][ T7751]  dump_stack_lvl+0x189/0x250
[  284.857323][ T7751]  ? __pfx____ratelimit+0x10/0x10
[  284.857363][ T7751]  ? __pfx_dump_stack_lvl+0x10/0x10
[  284.857401][ T7751]  ? __pfx__printk+0x10/0x10
[  284.857442][ T7751]  should_fail_ex+0x414/0x560
[  284.857483][ T7751]  _copy_to_user+0x31/0xb0
[  284.857512][ T7751]  simple_read_from_buffer+0xe1/0x170
[  284.857551][ T7751]  proc_fail_nth_read+0x1df/0x250
[  284.857593][ T7751]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  284.857633][ T7751]  ? rw_verify_area+0x258/0x650
[  284.857661][ T7751]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  284.857700][ T7751]  vfs_read+0x200/0x980
[  284.857736][ T7751]  ? __pfx___mutex_lock+0x10/0x10
[  284.857762][ T7751]  ? __pfx_vfs_read+0x10/0x10
[  284.857792][ T7751]  ? __fget_files+0x2a/0x420
[  284.857832][ T7751]  ? __fget_files+0x3a0/0x420
[  284.857865][ T7751]  ? __fget_files+0x2a/0x420
[  284.857923][ T7751]  ksys_read+0x145/0x250
[  284.857955][ T7751]  ? __pfx_ksys_read+0x10/0x10
[  284.857982][ T7751]  ? rcu_is_watching+0x15/0xb0
[  284.858029][ T7751]  ? trace_sys_enter+0x25/0x120
[  284.858072][ T7751]  do_syscall_64+0xfa/0x3b0
[  284.858093][ T7751]  ? lockdep_hardirqs_on+0x9c/0x150
[  284.858132][ T7751]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  284.858154][ T7751]  ? clear_bhb_loop+0x60/0xb0
[  284.858184][ T7751]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  284.858207][ T7751] RIP: 0033:0x7fd61ff8d33c
[  284.858226][ T7751] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  284.858248][ T7751] RSP: 002b:00007fd620da8030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  284.858271][ T7751] RAX: ffffffffffffffda RBX: 00007fd6201b5fa0 RCX: 00007fd61ff8d33c
[  284.858288][ T7751] RDX: 000000000000000f RSI: 00007fd620da80a0 RDI: 0000000000000005
[  284.858303][ T7751] RBP: 00007fd620da8090 R08: 0000000000000000 R09: 0000000000000000
[  284.858317][ T7751] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  284.858332][ T7751] R13: 0000000000000000 R14: 00007fd6201b5fa0 R15: 00007ffcd0239938
[  284.858369][ T7751]  </TASK>
[  285.020509][ T7761] FAULT_INJECTION: forcing a failure.
[  285.020509][ T7761] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  285.023934][ T7762] FAULT_INJECTION: forcing a failure.
[  285.023934][ T7762] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  285.037414][ T7761] CPU: 1 UID: 0 PID: 7761 Comm: syz.2.703 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  285.037449][ T7761] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  285.037465][ T7761] Call Trace:
[  285.037477][ T7761]  <TASK>
[  285.037490][ T7761]  dump_stack_lvl+0x189/0x250
[  285.037532][ T7761]  ? __pfx____ratelimit+0x10/0x10
[  285.037576][ T7761]  ? __pfx_dump_stack_lvl+0x10/0x10
[  285.037614][ T7761]  ? __pfx__printk+0x10/0x10
[  285.037658][ T7761]  should_fail_ex+0x414/0x560
[  285.037697][ T7761]  _copy_to_user+0x31/0xb0
[  285.037726][ T7761]  simple_read_from_buffer+0xe1/0x170
[  285.037765][ T7761]  proc_fail_nth_read+0x1df/0x250
[  285.037803][ T7761]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  285.037845][ T7761]  ? rw_verify_area+0x258/0x650
[  285.037873][ T7761]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  285.037913][ T7761]  vfs_read+0x200/0x980
[  285.037947][ T7761]  ? __pfx___mutex_lock+0x10/0x10
[  285.037973][ T7761]  ? __pfx_vfs_read+0x10/0x10
[  285.038005][ T7761]  ? __fget_files+0x2a/0x420
[  285.038065][ T7761]  ? __fget_files+0x3a0/0x420
[  285.038097][ T7761]  ? __fget_files+0x2a/0x420
[  285.038142][ T7761]  ksys_read+0x145/0x250
[  285.038173][ T7761]  ? __pfx_ksys_read+0x10/0x10
[  285.038201][ T7761]  ? rcu_is_watching+0x15/0xb0
[  285.038240][ T7761]  ? trace_sys_enter+0x25/0x120
[  285.038278][ T7761]  do_syscall_64+0xfa/0x3b0
[  285.038300][ T7761]  ? lockdep_hardirqs_on+0x9c/0x150
[  285.038336][ T7761]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.038359][ T7761]  ? clear_bhb_loop+0x60/0xb0
[  285.038391][ T7761]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.038415][ T7761] RIP: 0033:0x7fb686f8d33c
[  285.038437][ T7761] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  285.038461][ T7761] RSP: 002b:00007fb6861fe030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  285.038487][ T7761] RAX: ffffffffffffffda RBX: 00007fb6871b5fa0 RCX: 00007fb686f8d33c
[  285.038505][ T7761] RDX: 000000000000000f RSI: 00007fb6861fe0a0 RDI: 0000000000000005
[  285.038522][ T7761] RBP: 00007fb6861fe090 R08: 0000000000000000 R09: 0000000000000000
[  285.038536][ T7761] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  285.038550][ T7761] R13: 0000000000000000 R14: 00007fb6871b5fa0 R15: 00007ffdd6620bb8
[  285.038591][ T7761]  </TASK>
[  285.087501][ T7760] FAULT_INJECTION: forcing a failure.
[  285.087501][ T7760] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  285.151455][ T7758] CPU: 0 UID: 0 PID: 7758 Comm: syz.0.701 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  285.151492][ T7758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  285.151509][ T7758] Call Trace:
[  285.151519][ T7758]  <TASK>
[  285.151532][ T7758]  dump_stack_lvl+0x189/0x250
[  285.151582][ T7758]  ? __pfx____ratelimit+0x10/0x10
[  285.151624][ T7758]  ? __pfx_dump_stack_lvl+0x10/0x10
[  285.151661][ T7758]  ? __pfx__printk+0x10/0x10
[  285.151704][ T7758]  should_fail_ex+0x414/0x560
[  285.151743][ T7758]  _copy_to_user+0x31/0xb0
[  285.151772][ T7758]  simple_read_from_buffer+0xe1/0x170
[  285.151811][ T7758]  proc_fail_nth_read+0x1df/0x250
[  285.151852][ T7758]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  285.151892][ T7758]  ? rw_verify_area+0x258/0x650
[  285.151919][ T7758]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  285.151957][ T7758]  vfs_read+0x200/0x980
[  285.152013][ T7758]  ? __pfx___mutex_lock+0x10/0x10
[  285.152039][ T7758]  ? __pfx_vfs_read+0x10/0x10
[  285.152070][ T7758]  ? __fget_files+0x2a/0x420
[  285.152116][ T7758]  ? __fget_files+0x3a0/0x420
[  285.152148][ T7758]  ? __fget_files+0x2a/0x420
[  285.152193][ T7758]  ksys_read+0x145/0x250
[  285.152227][ T7758]  ? __pfx_ksys_read+0x10/0x10
[  285.152255][ T7758]  ? rcu_is_watching+0x15/0xb0
[  285.152301][ T7758]  ? trace_sys_enter+0x25/0x120
[  285.152340][ T7758]  do_syscall_64+0xfa/0x3b0
[  285.152379][ T7758]  ? lockdep_hardirqs_on+0x9c/0x150
[  285.152414][ T7758]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.152446][ T7758]  ? clear_bhb_loop+0x60/0xb0
[  285.152477][ T7758]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.152501][ T7758] RIP: 0033:0x7fd24178d33c
[  285.152524][ T7758] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  285.152548][ T7758] RSP: 002b:00007fd242652030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  285.152574][ T7758] RAX: ffffffffffffffda RBX: 00007fd2419b6080 RCX: 00007fd24178d33c
[  285.152592][ T7758] RDX: 000000000000000f RSI: 00007fd2426520a0 RDI: 0000000000000005
[  285.152608][ T7758] RBP: 00007fd242652090 R08: 0000000000000000 R09: 0000000000000000
[  285.152624][ T7758] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  285.152643][ T7758] R13: 0000000000000001 R14: 00007fd2419b6080 R15: 00007ffeb781b388
[  285.152681][ T7758]  </TASK>
[  285.190533][ T7762] CPU: 0 UID: 0 PID: 7762 Comm: syz.4.702 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  285.190573][ T7762] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  285.190589][ T7762] Call Trace:
[  285.190599][ T7762]  <TASK>
[  285.190609][ T7762]  dump_stack_lvl+0x189/0x250
[  285.190653][ T7762]  ? __pfx____ratelimit+0x10/0x10
[  285.190690][ T7762]  ? __pfx_dump_stack_lvl+0x10/0x10
[  285.190727][ T7762]  ? __pfx__printk+0x10/0x10
[  285.190768][ T7762]  should_fail_ex+0x414/0x560
[  285.190809][ T7762]  _copy_to_user+0x31/0xb0
[  285.190838][ T7762]  simple_read_from_buffer+0xe1/0x170
[  285.190876][ T7762]  proc_fail_nth_read+0x1df/0x250
[  285.190916][ T7762]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  285.190955][ T7762]  ? rw_verify_area+0x258/0x650
[  285.190981][ T7762]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  285.191028][ T7762]  vfs_read+0x200/0x980
[  285.191063][ T7762]  ? __pfx___mutex_lock+0x10/0x10
[  285.191088][ T7762]  ? __pfx_vfs_read+0x10/0x10
[  285.191118][ T7762]  ? __fget_files+0x2a/0x420
[  285.191156][ T7762]  ? __fget_files+0x3a0/0x420
[  285.191188][ T7762]  ? __fget_files+0x2a/0x420
[  285.191230][ T7762]  ksys_read+0x145/0x250
[  285.191262][ T7762]  ? __pfx_ksys_read+0x10/0x10
[  285.191299][ T7762]  ? rcu_is_watching+0x15/0xb0
[  285.191337][ T7762]  ? trace_sys_enter+0x25/0x120
[  285.191377][ T7762]  do_syscall_64+0xfa/0x3b0
[  285.191397][ T7762]  ? lockdep_hardirqs_on+0x9c/0x150
[  285.191433][ T7762]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.191458][ T7762]  ? clear_bhb_loop+0x60/0xb0
[  285.191488][ T7762]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.191512][ T7762] RIP: 0033:0x7f051f98d33c
[  285.191535][ T7762] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  285.191556][ T7762] RSP: 002b:00007f052072b030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  285.191582][ T7762] RAX: ffffffffffffffda RBX: 00007f051fbb6080 RCX: 00007f051f98d33c
[  285.191601][ T7762] RDX: 000000000000000f RSI: 00007f052072b0a0 RDI: 0000000000000005
[  285.191617][ T7762] RBP: 00007f052072b090 R08: 0000000000000000 R09: 0000000000000000
[  285.191633][ T7762] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  285.191647][ T7762] R13: 0000000000000001 R14: 00007f051fbb6080 R15: 00007ffc1cfc12c8
[  285.191686][ T7762]  </TASK>
[  285.746202][ T7767] FAULT_INJECTION: forcing a failure.
[  285.746202][ T7767] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  285.755670][ T7760] CPU: 1 UID: 0 PID: 7760 Comm: syz.1.700 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  285.755705][ T7760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  285.755720][ T7760] Call Trace:
[  285.755732][ T7760]  <TASK>
[  285.755742][ T7760]  dump_stack_lvl+0x189/0x250
[  285.755786][ T7760]  ? __pfx____ratelimit+0x10/0x10
[  285.755823][ T7760]  ? __pfx_dump_stack_lvl+0x10/0x10
[  285.755859][ T7760]  ? __pfx__printk+0x10/0x10
[  285.755901][ T7760]  should_fail_ex+0x414/0x560
[  285.755939][ T7760]  _copy_to_user+0x31/0xb0
[  285.755967][ T7760]  simple_read_from_buffer+0xe1/0x170
[  285.756004][ T7760]  proc_fail_nth_read+0x1df/0x250
[  285.756043][ T7760]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  285.756083][ T7760]  ? rw_verify_area+0x258/0x650
[  285.756109][ T7760]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  285.756156][ T7760]  vfs_read+0x200/0x980
[  285.756188][ T7760]  ? __pfx___mutex_lock+0x10/0x10
[  285.756210][ T7760]  ? __pfx_vfs_read+0x10/0x10
[  285.756239][ T7760]  ? __fget_files+0x2a/0x420
[  285.756284][ T7760]  ? __fget_files+0x3a0/0x420
[  285.756313][ T7760]  ? __fget_files+0x2a/0x420
[  285.756355][ T7760]  ksys_read+0x145/0x250
[  285.756384][ T7760]  ? __pfx_ksys_read+0x10/0x10
[  285.756409][ T7760]  ? rcu_is_watching+0x15/0xb0
[  285.756445][ T7760]  ? trace_sys_enter+0x25/0x120
[  285.756482][ T7760]  do_syscall_64+0xfa/0x3b0
[  285.756501][ T7760]  ? lockdep_hardirqs_on+0x9c/0x150
[  285.756534][ T7760]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.756558][ T7760]  ? clear_bhb_loop+0x60/0xb0
[  285.756587][ T7760]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.756608][ T7760] RIP: 0033:0x7f5cadb8d33c
[  285.756630][ T7760] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  285.756652][ T7760] RSP: 002b:00007f5cae930030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  285.756677][ T7760] RAX: ffffffffffffffda RBX: 00007f5caddb6080 RCX: 00007f5cadb8d33c
[  285.756700][ T7760] RDX: 000000000000000f RSI: 00007f5cae9300a0 RDI: 0000000000000005
[  285.756716][ T7760] RBP: 00007f5cae930090 R08: 0000000000000000 R09: 0000000000000000
[  285.756731][ T7760] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  285.756751][ T7760] R13: 0000000000000001 R14: 00007f5caddb6080 R15: 00007ffdb22ecb98
[  285.756806][ T7760]  </TASK>
[  285.859227][ T7769] FAULT_INJECTION: forcing a failure.
[  285.859227][ T7769] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  285.892040][ T7772] FAULT_INJECTION: forcing a failure.
[  285.892040][ T7772] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  285.918001][ T7769] CPU: 1 UID: 0 PID: 7769 Comm: syz.1.706 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  285.918038][ T7769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  285.918055][ T7769] Call Trace:
[  285.918066][ T7769]  <TASK>
[  285.918077][ T7769]  dump_stack_lvl+0x189/0x250
[  285.918121][ T7769]  ? __pfx____ratelimit+0x10/0x10
[  285.918161][ T7769]  ? __pfx_dump_stack_lvl+0x10/0x10
[  285.918198][ T7769]  ? __pfx__printk+0x10/0x10
[  285.918241][ T7769]  should_fail_ex+0x414/0x560
[  285.918279][ T7769]  _copy_to_user+0x31/0xb0
[  285.918308][ T7769]  simple_read_from_buffer+0xe1/0x170
[  285.918347][ T7769]  proc_fail_nth_read+0x1df/0x250
[  285.918395][ T7769]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  285.918437][ T7769]  ? rw_verify_area+0x258/0x650
[  285.918464][ T7769]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  285.918502][ T7769]  vfs_read+0x200/0x980
[  285.918538][ T7769]  ? __pfx___mutex_lock+0x10/0x10
[  285.918561][ T7769]  ? __pfx_vfs_read+0x10/0x10
[  285.918592][ T7769]  ? __fget_files+0x2a/0x420
[  285.918633][ T7769]  ? __fget_files+0x3a0/0x420
[  285.918665][ T7769]  ? __fget_files+0x2a/0x420
[  285.918712][ T7769]  ksys_read+0x145/0x250
[  285.918744][ T7769]  ? __pfx_ksys_read+0x10/0x10
[  285.918772][ T7769]  ? rcu_is_watching+0x15/0xb0
[  285.918810][ T7769]  ? trace_sys_enter+0x25/0x120
[  285.918851][ T7769]  do_syscall_64+0xfa/0x3b0
[  285.918873][ T7769]  ? lockdep_hardirqs_on+0x9c/0x150
[  285.918910][ T7769]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.918935][ T7769]  ? clear_bhb_loop+0x60/0xb0
[  285.918976][ T7769]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.919007][ T7769] RIP: 0033:0x7f5cadb8d33c
[  285.919032][ T7769] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  285.919055][ T7769] RSP: 002b:00007f5cae951030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  285.919084][ T7769] RAX: ffffffffffffffda RBX: 00007f5caddb5fa0 RCX: 00007f5cadb8d33c
[  285.919104][ T7769] RDX: 000000000000000f RSI: 00007f5cae9510a0 RDI: 0000000000000005
[  285.919121][ T7769] RBP: 00007f5cae951090 R08: 0000000000000000 R09: 0000000000000000
[  285.919137][ T7769] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  285.919154][ T7769] R13: 0000000000000000 R14: 00007f5caddb5fa0 R15: 00007ffdb22ecb98
[  285.919193][ T7769]  </TASK>
[  285.927594][ T7767] CPU: 1 UID: 0 PID: 7767 Comm: syz.2.704 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  285.927630][ T7767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  285.927647][ T7767] Call Trace:
[  285.927658][ T7767]  <TASK>
[  285.927669][ T7767]  dump_stack_lvl+0x189/0x250
[  285.927712][ T7767]  ? __pfx____ratelimit+0x10/0x10
[  285.927751][ T7767]  ? __pfx_dump_stack_lvl+0x10/0x10
[  285.927790][ T7767]  ? __pfx__printk+0x10/0x10
[  285.927831][ T7767]  should_fail_ex+0x414/0x560
[  285.927872][ T7767]  _copy_to_user+0x31/0xb0
[  285.927902][ T7767]  simple_read_from_buffer+0xe1/0x170
[  285.927968][ T7767]  proc_fail_nth_read+0x1df/0x250
[  285.928008][ T7767]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  285.928048][ T7767]  ? rw_verify_area+0x258/0x650
[  285.928075][ T7767]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  285.928111][ T7767]  vfs_read+0x200/0x980
[  285.928146][ T7767]  ? __pfx___mutex_lock+0x10/0x10
[  285.928169][ T7767]  ? __pfx_vfs_read+0x10/0x10
[  285.928198][ T7767]  ? __fget_files+0x2a/0x420
[  285.928238][ T7767]  ? __fget_files+0x3a0/0x420
[  285.928269][ T7767]  ? __fget_files+0x2a/0x420
[  285.928313][ T7767]  ksys_read+0x145/0x250
[  285.928345][ T7767]  ? __pfx_ksys_read+0x10/0x10
[  285.928372][ T7767]  ? rcu_is_watching+0x15/0xb0
[  285.928409][ T7767]  ? trace_sys_enter+0x25/0x120
[  285.928449][ T7767]  do_syscall_64+0xfa/0x3b0
[  285.928470][ T7767]  ? lockdep_hardirqs_on+0x9c/0x150
[  285.928506][ T7767]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.928531][ T7767]  ? clear_bhb_loop+0x60/0xb0
[  285.928561][ T7767]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.928585][ T7767] RIP: 0033:0x7fb686f8d33c
[  285.928608][ T7767] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  285.928629][ T7767] RSP: 002b:00007fb6861dd030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  285.928655][ T7767] RAX: ffffffffffffffda RBX: 00007fb6871b6080 RCX: 00007fb686f8d33c
[  285.928674][ T7767] RDX: 000000000000000f RSI: 00007fb6861dd0a0 RDI: 0000000000000005
[  285.928690][ T7767] RBP: 00007fb6861dd090 R08: 0000000000000000 R09: 0000000000000000
[  285.928704][ T7767] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  285.928720][ T7767] R13: 0000000000000001 R14: 00007fb6871b6080 R15: 00007ffdd6620bb8
[  285.928760][ T7767]  </TASK>
[  285.931894][ T7771] FAULT_INJECTION: forcing a failure.
[  285.931894][ T7771] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  285.965208][ T7772] CPU: 0 UID: 0 PID: 7772 Comm: syz.0.705 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  285.965241][ T7772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  285.965256][ T7772] Call Trace:
[  285.965265][ T7772]  <TASK>
[  285.965275][ T7772]  dump_stack_lvl+0x189/0x250
[  285.965315][ T7772]  ? __pfx____ratelimit+0x10/0x10
[  285.965351][ T7772]  ? __pfx_dump_stack_lvl+0x10/0x10
[  285.965385][ T7772]  ? __pfx__printk+0x10/0x10
[  285.965424][ T7772]  should_fail_ex+0x414/0x560
[  285.965458][ T7772]  _copy_to_user+0x31/0xb0
[  285.965487][ T7772]  simple_read_from_buffer+0xe1/0x170
[  285.965522][ T7772]  proc_fail_nth_read+0x1df/0x250
[  285.965558][ T7772]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  285.965598][ T7772]  ? rw_verify_area+0x258/0x650
[  285.965623][ T7772]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  285.965663][ T7772]  vfs_read+0x200/0x980
[  285.965695][ T7772]  ? __pfx___mutex_lock+0x10/0x10
[  285.965716][ T7772]  ? __pfx_vfs_read+0x10/0x10
[  285.965745][ T7772]  ? __fget_files+0x2a/0x420
[  285.965798][ T7772]  ? __fget_files+0x3a0/0x420
[  285.965828][ T7772]  ? __fget_files+0x2a/0x420
[  285.965872][ T7772]  ksys_read+0x145/0x250
[  285.965904][ T7772]  ? __pfx_ksys_read+0x10/0x10
[  285.965931][ T7772]  ? rcu_is_watching+0x15/0xb0
[  285.965967][ T7772]  ? trace_sys_enter+0x25/0x120
[  285.966005][ T7772]  do_syscall_64+0xfa/0x3b0
[  285.966027][ T7772]  ? lockdep_hardirqs_on+0x9c/0x150
[  285.966063][ T7772]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.966089][ T7772]  ? clear_bhb_loop+0x60/0xb0
[  285.966118][ T7772]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.966143][ T7772] RIP: 0033:0x7fd24178d33c
[  285.966164][ T7772] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  285.966187][ T7772] RSP: 002b:00007fd242652030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  285.966221][ T7772] RAX: ffffffffffffffda RBX: 00007fd2419b6080 RCX: 00007fd24178d33c
[  285.966240][ T7772] RDX: 000000000000000f RSI: 00007fd2426520a0 RDI: 0000000000000005
[  285.966256][ T7772] RBP: 00007fd242652090 R08: 0000000000000000 R09: 0000000000000000
[  285.966271][ T7772] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  285.966286][ T7772] R13: 0000000000000001 R14: 00007fd2419b6080 R15: 00007ffeb781b388
[  285.966325][ T7772]  </TASK>
[  286.588291][ T7779] FAULT_INJECTION: forcing a failure.
[  286.588291][ T7779] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  286.601170][ T7771] CPU: 1 UID: 0 PID: 7771 Comm: syz.3.707 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  286.601214][ T7771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  286.601229][ T7771] Call Trace:
[  286.601240][ T7771]  <TASK>
[  286.601251][ T7771]  dump_stack_lvl+0x189/0x250
[  286.601296][ T7771]  ? __pfx____ratelimit+0x10/0x10
[  286.601333][ T7771]  ? __pfx_dump_stack_lvl+0x10/0x10
[  286.601369][ T7771]  ? __pfx__printk+0x10/0x10
[  286.601410][ T7771]  should_fail_ex+0x414/0x560
[  286.601447][ T7771]  _copy_to_user+0x31/0xb0
[  286.601475][ T7771]  simple_read_from_buffer+0xe1/0x170
[  286.601512][ T7771]  proc_fail_nth_read+0x1df/0x250
[  286.601553][ T7771]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  286.601591][ T7771]  ? rw_verify_area+0x258/0x650
[  286.601618][ T7771]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  286.601660][ T7771]  vfs_read+0x200/0x980
[  286.601695][ T7771]  ? __pfx___mutex_lock+0x10/0x10
[  286.601719][ T7771]  ? __pfx_vfs_read+0x10/0x10
[  286.601748][ T7771]  ? __fget_files+0x2a/0x420
[  286.601798][ T7771]  ? __fget_files+0x3a0/0x420
[  286.601826][ T7771]  ? __fget_files+0x2a/0x420
[  286.601867][ T7771]  ksys_read+0x145/0x250
[  286.601897][ T7771]  ? __pfx_ksys_read+0x10/0x10
[  286.601922][ T7771]  ? rcu_is_watching+0x15/0xb0
[  286.601975][ T7771]  ? trace_sys_enter+0x25/0x120
[  286.602015][ T7771]  do_syscall_64+0xfa/0x3b0
[  286.602035][ T7771]  ? lockdep_hardirqs_on+0x9c/0x150
[  286.602072][ T7771]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  286.602096][ T7771]  ? clear_bhb_loop+0x60/0xb0
[  286.602127][ T7771]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  286.602151][ T7771] RIP: 0033:0x7fd61ff8d33c
[  286.602172][ T7771] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  286.602201][ T7771] RSP: 002b:00007fd620da8030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  286.602227][ T7771] RAX: ffffffffffffffda RBX: 00007fd6201b5fa0 RCX: 00007fd61ff8d33c
[  286.602248][ T7771] RDX: 000000000000000f RSI: 00007fd620da80a0 RDI: 0000000000000005
[  286.602262][ T7771] RBP: 00007fd620da8090 R08: 0000000000000000 R09: 0000000000000000
[  286.602278][ T7771] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  286.602293][ T7771] R13: 0000000000000000 R14: 00007fd6201b5fa0 R15: 00007ffcd0239938
[  286.602332][ T7771]  </TASK>
[  287.172312][ T7780] FAULT_INJECTION: forcing a failure.
[  287.172312][ T7780] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  287.176925][ T7781] FAULT_INJECTION: forcing a failure.
[  287.176925][ T7781] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  287.183172][ T7779] CPU: 1 UID: 0 PID: 7779 Comm: syz.1.709 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  287.183204][ T7779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  287.183220][ T7779] Call Trace:
[  287.183230][ T7779]  <TASK>
[  287.183240][ T7779]  dump_stack_lvl+0x189/0x250
[  287.183283][ T7779]  ? __pfx____ratelimit+0x10/0x10
[  287.183320][ T7779]  ? __pfx_dump_stack_lvl+0x10/0x10
[  287.183358][ T7779]  ? __pfx__printk+0x10/0x10
[  287.183398][ T7779]  should_fail_ex+0x414/0x560
[  287.183436][ T7779]  _copy_to_user+0x31/0xb0
[  287.183465][ T7779]  simple_read_from_buffer+0xe1/0x170
[  287.183500][ T7779]  proc_fail_nth_read+0x1df/0x250
[  287.183540][ T7779]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  287.183579][ T7779]  ? rw_verify_area+0x258/0x650
[  287.183605][ T7779]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  287.183642][ T7779]  vfs_read+0x200/0x980
[  287.183676][ T7779]  ? __pfx___mutex_lock+0x10/0x10
[  287.183701][ T7779]  ? __pfx_vfs_read+0x10/0x10
[  287.183742][ T7779]  ? __fget_files+0x2a/0x420
[  287.183790][ T7779]  ? __fget_files+0x3a0/0x420
[  287.183824][ T7779]  ? __fget_files+0x2a/0x420
[  287.183869][ T7779]  ksys_read+0x145/0x250
[  287.183899][ T7779]  ? __pfx_ksys_read+0x10/0x10
[  287.183927][ T7779]  ? rcu_is_watching+0x15/0xb0
[  287.183963][ T7779]  ? trace_sys_enter+0x25/0x120
[  287.184004][ T7779]  do_syscall_64+0xfa/0x3b0
[  287.184025][ T7779]  ? lockdep_hardirqs_on+0x9c/0x150
[  287.184060][ T7779]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  287.184085][ T7779]  ? clear_bhb_loop+0x60/0xb0
[  287.184124][ T7779]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  287.184148][ T7779] RIP: 0033:0x7f5cadb8d33c
[  287.184170][ T7779] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  287.184192][ T7779] RSP: 002b:00007f5cae930030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  287.184219][ T7779] RAX: ffffffffffffffda RBX: 00007f5caddb6080 RCX: 00007f5cadb8d33c
[  287.184237][ T7779] RDX: 000000000000000f RSI: 00007f5cae9300a0 RDI: 0000000000000003
[  287.184253][ T7779] RBP: 00007f5cae930090 R08: 0000000000000000 R09: 0000000000000000
[  287.184268][ T7779] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  287.184283][ T7779] R13: 0000000000000000 R14: 00007f5caddb6080 R15: 00007ffdb22ecb98
[  287.184321][ T7779]  </TASK>
[  287.196692][ T7780] CPU: 1 UID: 0 PID: 7780 Comm: syz.0.710 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  287.196726][ T7780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  287.196742][ T7780] Call Trace:
[  287.196751][ T7780]  <TASK>
[  287.196778][ T7780]  dump_stack_lvl+0x189/0x250
[  287.196839][ T7780]  ? __pfx____ratelimit+0x10/0x10
[  287.196891][ T7780]  ? __pfx_dump_stack_lvl+0x10/0x10
[  287.196930][ T7780]  ? __pfx__printk+0x10/0x10
[  287.196975][ T7780]  should_fail_ex+0x414/0x560
[  287.197013][ T7780]  _copy_to_user+0x31/0xb0
[  287.197042][ T7780]  simple_read_from_buffer+0xe1/0x170
[  287.197081][ T7780]  proc_fail_nth_read+0x1df/0x250
[  287.197122][ T7780]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  287.197162][ T7780]  ? rw_verify_area+0x258/0x650
[  287.197189][ T7780]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  287.197227][ T7780]  vfs_read+0x200/0x980
[  287.197263][ T7780]  ? __pfx___mutex_lock+0x10/0x10
[  287.197287][ T7780]  ? __pfx_vfs_read+0x10/0x10
[  287.197318][ T7780]  ? __fget_files+0x2a/0x420
[  287.197357][ T7780]  ? __fget_files+0x3a0/0x420
[  287.197389][ T7780]  ? __fget_files+0x2a/0x420
[  287.197435][ T7780]  ksys_read+0x145/0x250
[  287.197466][ T7780]  ? __pfx_ksys_read+0x10/0x10
[  287.197495][ T7780]  ? rcu_is_watching+0x15/0xb0
[  287.197534][ T7780]  ? trace_sys_enter+0x25/0x120
[  287.197576][ T7780]  do_syscall_64+0xfa/0x3b0
[  287.197599][ T7780]  ? lockdep_hardirqs_on+0x9c/0x150
[  287.197635][ T7780]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  287.197659][ T7780]  ? clear_bhb_loop+0x60/0xb0
[  287.197692][ T7780]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  287.197715][ T7780] RIP: 0033:0x7fd24178d33c
[  287.197739][ T7780] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  287.197761][ T7780] RSP: 002b:00007fd242652030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  287.197788][ T7780] RAX: ffffffffffffffda RBX: 00007fd2419b6080 RCX: 00007fd24178d33c
[  287.197808][ T7780] RDX: 000000000000000f RSI: 00007fd2426520a0 RDI: 0000000000000005
[  287.197825][ T7780] RBP: 00007fd242652090 R08: 0000000000000000 R09: 0000000000000000
[  287.197842][ T7780] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  287.197857][ T7780] R13: 0000000000000001 R14: 00007fd2419b6080 R15: 00007ffeb781b388
[  287.197906][ T7780]  </TASK>
[  287.865243][ T7788] FAULT_INJECTION: forcing a failure.
[  287.865243][ T7788] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  287.871426][ T7781] CPU: 0 UID: 0 PID: 7781 Comm: syz.4.708 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  287.871459][ T7781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  287.871471][ T7781] Call Trace:
[  287.871482][ T7781]  <TASK>
[  287.871495][ T7781]  dump_stack_lvl+0x189/0x250
[  287.871537][ T7781]  ? __pfx____ratelimit+0x10/0x10
[  287.871574][ T7781]  ? __pfx_dump_stack_lvl+0x10/0x10
[  287.871608][ T7781]  ? __pfx__printk+0x10/0x10
[  287.871647][ T7781]  should_fail_ex+0x414/0x560
[  287.871682][ T7781]  _copy_to_user+0x31/0xb0
[  287.871709][ T7781]  simple_read_from_buffer+0xe1/0x170
[  287.871765][ T7781]  proc_fail_nth_read+0x1df/0x250
[  287.871830][ T7781]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  287.871869][ T7781]  ? rw_verify_area+0x258/0x650
[  287.871895][ T7781]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  287.871934][ T7781]  vfs_read+0x200/0x980
[  287.871967][ T7781]  ? __pfx___mutex_lock+0x10/0x10
[  287.871992][ T7781]  ? __pfx_vfs_read+0x10/0x10
[  287.872021][ T7781]  ? __fget_files+0x2a/0x420
[  287.872059][ T7781]  ? __fget_files+0x3a0/0x420
[  287.872090][ T7781]  ? __fget_files+0x2a/0x420
[  287.872135][ T7781]  ksys_read+0x145/0x250
[  287.872165][ T7781]  ? __pfx_ksys_read+0x10/0x10
[  287.872192][ T7781]  ? rcu_is_watching+0x15/0xb0
[  287.872229][ T7781]  ? trace_sys_enter+0x25/0x120
[  287.872269][ T7781]  do_syscall_64+0xfa/0x3b0
[  287.872290][ T7781]  ? lockdep_hardirqs_on+0x9c/0x150
[  287.872326][ T7781]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  287.872351][ T7781]  ? clear_bhb_loop+0x60/0xb0
[  287.872380][ T7781]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  287.872405][ T7781] RIP: 0033:0x7f051f98d33c
[  287.872429][ T7781] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  287.872451][ T7781] RSP: 002b:00007f052072b030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  287.872477][ T7781] RAX: ffffffffffffffda RBX: 00007f051fbb6080 RCX: 00007f051f98d33c
[  287.872496][ T7781] RDX: 000000000000000f RSI: 00007f052072b0a0 RDI: 0000000000000005
[  287.872513][ T7781] RBP: 00007f052072b090 R08: 0000000000000000 R09: 0000000000000000
[  287.872529][ T7781] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  287.872545][ T7781] R13: 0000000000000001 R14: 00007f051fbb6080 R15: 00007ffc1cfc12c8
[  287.872585][ T7781]  </TASK>
[  287.909220][ T7789] FAULT_INJECTION: forcing a failure.
[  287.909220][ T7789] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  287.937966][ T7790] FAULT_INJECTION: forcing a failure.
[  287.937966][ T7790] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  287.978464][ T7789] CPU: 0 UID: 0 PID: 7789 Comm: syz.1.712 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  287.978498][ T7789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  287.978514][ T7789] Call Trace:
[  287.978525][ T7789]  <TASK>
[  287.978536][ T7789]  dump_stack_lvl+0x189/0x250
[  287.978580][ T7789]  ? __pfx____ratelimit+0x10/0x10
[  287.978617][ T7789]  ? __pfx_dump_stack_lvl+0x10/0x10
[  287.978655][ T7789]  ? __pfx__printk+0x10/0x10
[  287.978694][ T7789]  should_fail_ex+0x414/0x560
[  287.978732][ T7789]  _copy_to_user+0x31/0xb0
[  287.978760][ T7789]  simple_read_from_buffer+0xe1/0x170
[  287.978821][ T7789]  proc_fail_nth_read+0x1df/0x250
[  287.978857][ T7789]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  287.978895][ T7789]  ? rw_verify_area+0x258/0x650
[  287.978919][ T7789]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  287.978953][ T7789]  vfs_read+0x200/0x980
[  287.978986][ T7789]  ? __pfx___mutex_lock+0x10/0x10
[  287.979007][ T7789]  ? __pfx_vfs_read+0x10/0x10
[  287.979034][ T7789]  ? __fget_files+0x2a/0x420
[  287.979070][ T7789]  ? __fget_files+0x3a0/0x420
[  287.979100][ T7789]  ? __fget_files+0x2a/0x420
[  287.979141][ T7789]  ksys_read+0x145/0x250
[  287.979169][ T7789]  ? __pfx_ksys_read+0x10/0x10
[  287.979194][ T7789]  ? rcu_is_watching+0x15/0xb0
[  287.979228][ T7789]  ? trace_sys_enter+0x25/0x120
[  287.979265][ T7789]  do_syscall_64+0xfa/0x3b0
[  287.979284][ T7789]  ? lockdep_hardirqs_on+0x9c/0x150
[  287.979318][ T7789]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  287.979343][ T7789]  ? clear_bhb_loop+0x60/0xb0
[  287.979372][ T7789]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  287.979395][ T7789] RIP: 0033:0x7f5cadb8d33c
[  287.979417][ T7789] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  287.979438][ T7789] RSP: 002b:00007f5cae930030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  287.979463][ T7789] RAX: ffffffffffffffda RBX: 00007f5caddb6080 RCX: 00007f5cadb8d33c
[  287.979481][ T7789] RDX: 000000000000000f RSI: 00007f5cae9300a0 RDI: 0000000000000005
[  287.979495][ T7789] RBP: 00007f5cae930090 R08: 0000000000000000 R09: 0000000000000000
[  287.979510][ T7789] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  287.979524][ T7789] R13: 0000000000000001 R14: 00007f5caddb6080 R15: 00007ffdb22ecb98
[  287.979559][ T7789]  </TASK>
[  288.021028][ T7788] CPU: 0 UID: 0 PID: 7788 Comm: syz.3.711 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  288.021063][ T7788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  288.021079][ T7788] Call Trace:
[  288.021090][ T7788]  <TASK>
[  288.021102][ T7788]  dump_stack_lvl+0x189/0x250
[  288.021145][ T7788]  ? __pfx____ratelimit+0x10/0x10
[  288.021181][ T7788]  ? __pfx_dump_stack_lvl+0x10/0x10
[  288.021218][ T7788]  ? __pfx__printk+0x10/0x10
[  288.021257][ T7788]  should_fail_ex+0x414/0x560
[  288.021294][ T7788]  _copy_to_user+0x31/0xb0
[  288.021320][ T7788]  simple_read_from_buffer+0xe1/0x170
[  288.021358][ T7788]  proc_fail_nth_read+0x1df/0x250
[  288.021398][ T7788]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  288.021437][ T7788]  ? rw_verify_area+0x258/0x650
[  288.021474][ T7788]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  288.021509][ T7788]  vfs_read+0x200/0x980
[  288.021541][ T7788]  ? __pfx___mutex_lock+0x10/0x10
[  288.021564][ T7788]  ? __pfx_vfs_read+0x10/0x10
[  288.021591][ T7788]  ? __fget_files+0x2a/0x420
[  288.021647][ T7788]  ? __fget_files+0x3a0/0x420
[  288.021677][ T7788]  ? __fget_files+0x2a/0x420
[  288.021723][ T7788]  ksys_read+0x145/0x250
[  288.021773][ T7788]  ? __pfx_ksys_read+0x10/0x10
[  288.021800][ T7788]  ? rcu_is_watching+0x15/0xb0
[  288.021835][ T7788]  ? trace_sys_enter+0x25/0x120
[  288.021872][ T7788]  do_syscall_64+0xfa/0x3b0
[  288.021891][ T7788]  ? lockdep_hardirqs_on+0x9c/0x150
[  288.021925][ T7788]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  288.021948][ T7788]  ? clear_bhb_loop+0x60/0xb0
[  288.021978][ T7788]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  288.021999][ T7788] RIP: 0033:0x7fd61ff8d33c
[  288.022019][ T7788] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  288.022045][ T7788] RSP: 002b:00007fd620d87030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  288.022070][ T7788] RAX: ffffffffffffffda RBX: 00007fd6201b6080 RCX: 00007fd61ff8d33c
[  288.022087][ T7788] RDX: 000000000000000f RSI: 00007fd620d870a0 RDI: 0000000000000005
[  288.022102][ T7788] RBP: 00007fd620d87090 R08: 0000000000000000 R09: 0000000000000000
[  288.022117][ T7788] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  288.022130][ T7788] R13: 0000000000000001 R14: 00007fd6201b6080 R15: 00007ffcd0239938
[  288.022167][ T7788]  </TASK>
[  288.669027][ T7793] FAULT_INJECTION: forcing a failure.
[  288.669027][ T7793] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  288.680183][ T7790] CPU: 1 UID: 0 PID: 7790 Comm: syz.2.713 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  288.680218][ T7790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  288.680232][ T7790] Call Trace:
[  288.680243][ T7790]  <TASK>
[  288.680254][ T7790]  dump_stack_lvl+0x189/0x250
[  288.680295][ T7790]  ? __pfx____ratelimit+0x10/0x10
[  288.680330][ T7790]  ? __pfx_dump_stack_lvl+0x10/0x10
[  288.680363][ T7790]  ? __pfx__printk+0x10/0x10
[  288.680402][ T7790]  should_fail_ex+0x414/0x560
[  288.680439][ T7790]  _copy_to_user+0x31/0xb0
[  288.680466][ T7790]  simple_read_from_buffer+0xe1/0x170
[  288.680519][ T7790]  proc_fail_nth_read+0x1df/0x250
[  288.680561][ T7790]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  288.680599][ T7790]  ? rw_verify_area+0x258/0x650
[  288.680625][ T7790]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  288.680664][ T7790]  vfs_read+0x200/0x980
[  288.680697][ T7790]  ? __pfx___mutex_lock+0x10/0x10
[  288.680721][ T7790]  ? __pfx_vfs_read+0x10/0x10
[  288.680749][ T7790]  ? __fget_files+0x2a/0x420
[  288.680802][ T7790]  ? __fget_files+0x3a0/0x420
[  288.680830][ T7790]  ? __fget_files+0x2a/0x420
[  288.680873][ T7790]  ksys_read+0x145/0x250
[  288.680906][ T7790]  ? __pfx_ksys_read+0x10/0x10
[  288.680934][ T7790]  ? rcu_is_watching+0x15/0xb0
[  288.680971][ T7790]  ? trace_sys_enter+0x25/0x120
[  288.681009][ T7790]  do_syscall_64+0xfa/0x3b0
[  288.681030][ T7790]  ? lockdep_hardirqs_on+0x9c/0x150
[  288.681065][ T7790]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  288.681091][ T7790]  ? clear_bhb_loop+0x60/0xb0
[  288.681120][ T7790]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  288.681144][ T7790] RIP: 0033:0x7fb686f8d33c
[  288.681168][ T7790] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  288.681189][ T7790] RSP: 002b:00007fb6861dd030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  288.681216][ T7790] RAX: ffffffffffffffda RBX: 00007fb6871b6080 RCX: 00007fb686f8d33c
[  288.681234][ T7790] RDX: 000000000000000f RSI: 00007fb6861dd0a0 RDI: 0000000000000005
[  288.681251][ T7790] RBP: 00007fb6861dd090 R08: 0000000000000000 R09: 0000000000000000
[  288.681267][ T7790] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  288.681281][ T7790] R13: 0000000000000001 R14: 00007fb6871b6080 R15: 00007ffdd6620bb8
[  288.681320][ T7790]  </TASK>
[  288.962257][ T7793] CPU: 0 UID: 0 PID: 7793 Comm: syz.0.714 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  288.962295][ T7793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  288.962309][ T7793] Call Trace:
[  288.962323][ T7793]  <TASK>
[  288.962334][ T7793]  dump_stack_lvl+0x189/0x250
[  288.962372][ T7793]  ? __pfx____ratelimit+0x10/0x10
[  288.962405][ T7793]  ? __pfx_dump_stack_lvl+0x10/0x10
[  288.962438][ T7793]  ? __pfx__printk+0x10/0x10
[  288.962475][ T7793]  should_fail_ex+0x414/0x560
[  288.962509][ T7793]  _copy_to_user+0x31/0xb0
[  288.962535][ T7793]  simple_read_from_buffer+0xe1/0x170
[  288.962569][ T7793]  proc_fail_nth_read+0x1df/0x250
[  288.962605][ T7793]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  288.962641][ T7793]  ? rw_verify_area+0x258/0x650
[  288.962674][ T7793]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  288.962708][ T7793]  vfs_read+0x200/0x980
[  288.962740][ T7793]  ? __pfx___mutex_lock+0x10/0x10
[  288.962761][ T7793]  ? __pfx_vfs_read+0x10/0x10
[  288.962788][ T7793]  ? __fget_files+0x2a/0x420
[  288.962823][ T7793]  ? __fget_files+0x3a0/0x420
[  288.962850][ T7793]  ? __fget_files+0x2a/0x420
[  288.962890][ T7793]  ksys_read+0x145/0x250
[  288.962918][ T7793]  ? __pfx_ksys_read+0x10/0x10
[  288.962943][ T7793]  ? rcu_is_watching+0x15/0xb0
[  288.962976][ T7793]  ? trace_sys_enter+0x25/0x120
[  288.963011][ T7793]  do_syscall_64+0xfa/0x3b0
[  288.963030][ T7793]  ? lockdep_hardirqs_on+0x9c/0x150
[  288.963061][ T7793]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  288.963083][ T7793]  ? clear_bhb_loop+0x60/0xb0
[  288.963110][ T7793]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  288.963131][ T7793] RIP: 0033:0x7fd24178d33c
[  288.963151][ T7793] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  288.963177][ T7793] RSP: 002b:00007fd242652030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  288.963200][ T7793] RAX: ffffffffffffffda RBX: 00007fd2419b6080 RCX: 00007fd24178d33c
[  288.963217][ T7793] RDX: 000000000000000f RSI: 00007fd2426520a0 RDI: 0000000000000003
[  288.963231][ T7793] RBP: 00007fd242652090 R08: 0000000000000000 R09: 0000000000000000
[  288.963245][ T7793] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  288.963258][ T7793] R13: 0000000000000000 R14: 00007fd2419b6080 R15: 00007ffeb781b388
[  288.963293][ T7793]  </TASK>
[  289.293750][ T7801] FAULT_INJECTION: forcing a failure.
[  289.293750][ T7801] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  289.308953][ T7801] CPU: 0 UID: 0 PID: 7801 Comm: syz.3.718 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  289.308983][ T7801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  289.309003][ T7801] Call Trace:
[  289.309025][ T7801]  <TASK>
[  289.309034][ T7801]  dump_stack_lvl+0x189/0x250
[  289.309071][ T7801]  ? __pfx____ratelimit+0x10/0x10
[  289.309103][ T7801]  ? __pfx_dump_stack_lvl+0x10/0x10
[  289.309135][ T7801]  ? __pfx__printk+0x10/0x10
[  289.309171][ T7801]  should_fail_ex+0x414/0x560
[  289.309204][ T7801]  _copy_to_user+0x31/0xb0
[  289.309229][ T7801]  simple_read_from_buffer+0xe1/0x170
[  289.309261][ T7801]  proc_fail_nth_read+0x1df/0x250
[  289.309296][ T7801]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.309332][ T7801]  ? rw_verify_area+0x258/0x650
[  289.309355][ T7801]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.309387][ T7801]  vfs_read+0x200/0x980
[  289.309418][ T7801]  ? __pfx___mutex_lock+0x10/0x10
[  289.309440][ T7801]  ? __pfx_vfs_read+0x10/0x10
[  289.309465][ T7801]  ? __fget_files+0x2a/0x420
[  289.309499][ T7801]  ? __fget_files+0x3a0/0x420
[  289.309526][ T7801]  ? __fget_files+0x2a/0x420
[  289.309565][ T7801]  ksys_read+0x145/0x250
[  289.309593][ T7801]  ? __pfx_ksys_read+0x10/0x10
[  289.309617][ T7801]  ? rcu_is_watching+0x15/0xb0
[  289.309650][ T7801]  ? trace_sys_enter+0x25/0x120
[  289.309693][ T7801]  do_syscall_64+0xfa/0x3b0
[  289.309712][ T7801]  ? lockdep_hardirqs_on+0x9c/0x150
[  289.309743][ T7801]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.309765][ T7801]  ? clear_bhb_loop+0x60/0xb0
[  289.309792][ T7801]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.309813][ T7801] RIP: 0033:0x7fd61ff8d33c
[  289.309833][ T7801] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  289.309853][ T7801] RSP: 002b:00007fd620da8030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  289.309875][ T7801] RAX: ffffffffffffffda RBX: 00007fd6201b5fa0 RCX: 00007fd61ff8d33c
[  289.309891][ T7801] RDX: 000000000000000f RSI: 00007fd620da80a0 RDI: 0000000000000005
[  289.309905][ T7801] RBP: 00007fd620da8090 R08: 0000000000000000 R09: 0000000000000000
[  289.309919][ T7801] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  289.309932][ T7801] R13: 0000000000000000 R14: 00007fd6201b5fa0 R15: 00007ffcd0239938
[  289.309967][ T7801]  </TASK>
[  289.607667][ T7799] FAULT_INJECTION: forcing a failure.
[  289.607667][ T7799] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  289.622203][ T7795] FAULT_INJECTION: forcing a failure.
[  289.622203][ T7795] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  289.627556][ T7803] FAULT_INJECTION: forcing a failure.
[  289.627556][ T7803] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  289.637256][ T7800] FAULT_INJECTION: forcing a failure.
[  289.637256][ T7800] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  289.654029][ T7803] CPU: 0 UID: 0 PID: 7803 Comm: syz.0.719 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  289.654061][ T7803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  289.654077][ T7803] Call Trace:
[  289.654088][ T7803]  <TASK>
[  289.654100][ T7803]  dump_stack_lvl+0x189/0x250
[  289.654142][ T7803]  ? __pfx____ratelimit+0x10/0x10
[  289.654181][ T7803]  ? __pfx_dump_stack_lvl+0x10/0x10
[  289.654217][ T7803]  ? __pfx__printk+0x10/0x10
[  289.654256][ T7803]  should_fail_ex+0x414/0x560
[  289.654293][ T7803]  _copy_to_user+0x31/0xb0
[  289.654321][ T7803]  simple_read_from_buffer+0xe1/0x170
[  289.654360][ T7803]  proc_fail_nth_read+0x1df/0x250
[  289.654398][ T7803]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.654438][ T7803]  ? rw_verify_area+0x258/0x650
[  289.654465][ T7803]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.654504][ T7803]  vfs_read+0x200/0x980
[  289.654540][ T7803]  ? __pfx___mutex_lock+0x10/0x10
[  289.654565][ T7803]  ? __pfx_vfs_read+0x10/0x10
[  289.654594][ T7803]  ? __fget_files+0x2a/0x420
[  289.654632][ T7803]  ? __fget_files+0x3a0/0x420
[  289.654671][ T7803]  ? __fget_files+0x2a/0x420
[  289.654714][ T7803]  ksys_read+0x145/0x250
[  289.654745][ T7803]  ? __pfx_ksys_read+0x10/0x10
[  289.654772][ T7803]  ? rcu_is_watching+0x15/0xb0
[  289.654809][ T7803]  ? trace_sys_enter+0x25/0x120
[  289.654847][ T7803]  do_syscall_64+0xfa/0x3b0
[  289.654869][ T7803]  ? lockdep_hardirqs_on+0x9c/0x150
[  289.654904][ T7803]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.654930][ T7803]  ? clear_bhb_loop+0x60/0xb0
[  289.654959][ T7803]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.654984][ T7803] RIP: 0033:0x7fd24178d33c
[  289.655007][ T7803] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  289.655029][ T7803] RSP: 002b:00007fd242673030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  289.655055][ T7803] RAX: ffffffffffffffda RBX: 00007fd2419b5fa0 RCX: 00007fd24178d33c
[  289.655073][ T7803] RDX: 000000000000000f RSI: 00007fd2426730a0 RDI: 0000000000000005
[  289.655090][ T7803] RBP: 00007fd242673090 R08: 0000000000000000 R09: 0000000000000000
[  289.655103][ T7803] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  289.655118][ T7803] R13: 0000000000000000 R14: 00007fd2419b5fa0 R15: 00007ffeb781b388
[  289.655153][ T7803]  </TASK>
[  289.673475][ T7799] CPU: 0 UID: 0 PID: 7799 Comm: syz.1.715 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  289.673511][ T7799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  289.673527][ T7799] Call Trace:
[  289.673538][ T7799]  <TASK>
[  289.673550][ T7799]  dump_stack_lvl+0x189/0x250
[  289.673590][ T7799]  ? __pfx____ratelimit+0x10/0x10
[  289.673627][ T7799]  ? __pfx_dump_stack_lvl+0x10/0x10
[  289.673675][ T7799]  ? __pfx__printk+0x10/0x10
[  289.673715][ T7799]  should_fail_ex+0x414/0x560
[  289.673752][ T7799]  _copy_to_user+0x31/0xb0
[  289.673780][ T7799]  simple_read_from_buffer+0xe1/0x170
[  289.673819][ T7799]  proc_fail_nth_read+0x1df/0x250
[  289.673857][ T7799]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.673896][ T7799]  ? rw_verify_area+0x258/0x650
[  289.673923][ T7799]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.673959][ T7799]  vfs_read+0x200/0x980
[  289.673992][ T7799]  ? __pfx___mutex_lock+0x10/0x10
[  289.674017][ T7799]  ? __pfx_vfs_read+0x10/0x10
[  289.674046][ T7799]  ? __fget_files+0x2a/0x420
2025/06/13 12:03:17 executed programs: 719
[  289.674086][ T7799]  ? __fget_files+0x3a0/0x420
[  289.674116][ T7799]  ? __fget_files+0x2a/0x420
[  289.674160][ T7799]  ksys_read+0x145/0x250
[  289.674192][ T7799]  ? __pfx_ksys_read+0x10/0x10
[  289.674220][ T7799]  ? rcu_is_watching+0x15/0xb0
[  289.674256][ T7799]  ? trace_sys_enter+0x25/0x120
[  289.674295][ T7799]  do_syscall_64+0xfa/0x3b0
[  289.674317][ T7799]  ? lockdep_hardirqs_on+0x9c/0x150
[  289.674354][ T7799]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.674377][ T7799]  ? clear_bhb_loop+0x60/0xb0
[  289.674409][ T7799]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.674433][ T7799] RIP: 0033:0x7f5cadb8d33c
[  289.674455][ T7799] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  289.674476][ T7799] RSP: 002b:00007f5cae951030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  289.674503][ T7799] RAX: ffffffffffffffda RBX: 00007f5caddb5fa0 RCX: 00007f5cadb8d33c
[  289.674532][ T7799] RDX: 000000000000000f RSI: 00007f5cae9510a0 RDI: 0000000000000005
[  289.674547][ T7799] RBP: 00007f5cae951090 R08: 0000000000000000 R09: 0000000000000000
[  289.674562][ T7799] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  289.674574][ T7799] R13: 0000000000000000 R14: 00007f5caddb5fa0 R15: 00007ffdb22ecb98
[  289.674610][ T7799]  </TASK>
[  289.710868][ T7807] FAULT_INJECTION: forcing a failure.
[  289.710868][ T7807] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  289.721973][ T7805] FAULT_INJECTION: forcing a failure.
[  289.721973][ T7805] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  289.727332][ T7807] CPU: 0 UID: 0 PID: 7807 Comm: syz.0.721 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  289.727359][ T7807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  289.727376][ T7807] Call Trace:
[  289.727386][ T7807]  <TASK>
[  289.727398][ T7807]  dump_stack_lvl+0x189/0x250
[  289.727443][ T7807]  ? __pfx____ratelimit+0x10/0x10
[  289.727483][ T7807]  ? __pfx_dump_stack_lvl+0x10/0x10
[  289.727521][ T7807]  ? __pfx__printk+0x10/0x10
[  289.727564][ T7807]  should_fail_ex+0x414/0x560
[  289.727603][ T7807]  _copy_to_user+0x31/0xb0
[  289.727639][ T7807]  simple_read_from_buffer+0xe1/0x170
[  289.727678][ T7807]  proc_fail_nth_read+0x1df/0x250
[  289.727720][ T7807]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.727760][ T7807]  ? rw_verify_area+0x258/0x650
[  289.727788][ T7807]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.727828][ T7807]  vfs_read+0x200/0x980
[  289.727862][ T7807]  ? __pfx___mutex_lock+0x10/0x10
[  289.727887][ T7807]  ? __pfx_vfs_read+0x10/0x10
[  289.727918][ T7807]  ? __fget_files+0x2a/0x420
[  289.727958][ T7807]  ? __fget_files+0x3a0/0x420
[  289.727991][ T7807]  ? __fget_files+0x2a/0x420
[  289.728036][ T7807]  ksys_read+0x145/0x250
[  289.728068][ T7807]  ? __pfx_ksys_read+0x10/0x10
[  289.728097][ T7807]  ? rcu_is_watching+0x15/0xb0
[  289.728136][ T7807]  ? trace_sys_enter+0x25/0x120
[  289.728176][ T7807]  do_syscall_64+0xfa/0x3b0
[  289.728197][ T7807]  ? lockdep_hardirqs_on+0x9c/0x150
[  289.728234][ T7807]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.728260][ T7807]  ? clear_bhb_loop+0x60/0xb0
[  289.728292][ T7807]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.728316][ T7807] RIP: 0033:0x7fd24178d33c
[  289.728340][ T7807] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  289.728362][ T7807] RSP: 002b:00007fd242673030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  289.728388][ T7807] RAX: ffffffffffffffda RBX: 00007fd2419b5fa0 RCX: 00007fd24178d33c
[  289.728407][ T7807] RDX: 000000000000000f RSI: 00007fd2426730a0 RDI: 0000000000000005
[  289.728424][ T7807] RBP: 00007fd242673090 R08: 0000000000000000 R09: 0000000000000000
[  289.728440][ T7807] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  289.728466][ T7807] R13: 0000000000000000 R14: 00007fd2419b5fa0 R15: 00007ffeb781b388
[  289.728506][ T7807]  </TASK>
[  289.761946][ T7795] CPU: 0 UID: 0 PID: 7795 Comm: syz.4.717 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  289.761982][ T7795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  289.761998][ T7795] Call Trace:
[  289.762009][ T7795]  <TASK>
[  289.762020][ T7795]  dump_stack_lvl+0x189/0x250
[  289.762062][ T7795]  ? __pfx____ratelimit+0x10/0x10
[  289.762099][ T7795]  ? __pfx_dump_stack_lvl+0x10/0x10
[  289.762136][ T7795]  ? __pfx__printk+0x10/0x10
[  289.762177][ T7795]  should_fail_ex+0x414/0x560
[  289.762215][ T7795]  _copy_to_user+0x31/0xb0
[  289.762242][ T7795]  simple_read_from_buffer+0xe1/0x170
[  289.762282][ T7795]  proc_fail_nth_read+0x1df/0x250
[  289.762320][ T7795]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.762361][ T7795]  ? rw_verify_area+0x258/0x650
[  289.762385][ T7795]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.762423][ T7795]  vfs_read+0x200/0x980
[  289.762459][ T7795]  ? __pfx___mutex_lock+0x10/0x10
[  289.762482][ T7795]  ? __pfx_vfs_read+0x10/0x10
[  289.762513][ T7795]  ? __fget_files+0x2a/0x420
[  289.762551][ T7795]  ? __fget_files+0x3a0/0x420
[  289.762583][ T7795]  ? __fget_files+0x2a/0x420
[  289.762626][ T7795]  ksys_read+0x145/0x250
[  289.762665][ T7795]  ? __pfx_ksys_read+0x10/0x10
[  289.762692][ T7795]  ? rcu_is_watching+0x15/0xb0
[  289.762728][ T7795]  ? trace_sys_enter+0x25/0x120
[  289.762769][ T7795]  do_syscall_64+0xfa/0x3b0
[  289.762791][ T7795]  ? lockdep_hardirqs_on+0x9c/0x150
[  289.762826][ T7795]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.762850][ T7795]  ? clear_bhb_loop+0x60/0xb0
[  289.762880][ T7795]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.762905][ T7795] RIP: 0033:0x7f051f98d33c
[  289.762925][ T7795] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  289.762948][ T7795] RSP: 002b:00007f052074c030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  289.762974][ T7795] RAX: ffffffffffffffda RBX: 00007f051fbb5fa0 RCX: 00007f051f98d33c
[  289.762993][ T7795] RDX: 000000000000000f RSI: 00007f052074c0a0 RDI: 0000000000000005
[  289.763009][ T7795] RBP: 00007f052074c090 R08: 0000000000000000 R09: 0000000000000000
[  289.763024][ T7795] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  289.763038][ T7795] R13: 0000000000000000 R14: 00007f051fbb5fa0 R15: 00007ffc1cfc12c8
[  289.763076][ T7795]  </TASK>
[  289.807306][ T7800] CPU: 0 UID: 0 PID: 7800 Comm: syz.2.716 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  289.807343][ T7800] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  289.807360][ T7800] Call Trace:
[  289.807370][ T7800]  <TASK>
[  289.807382][ T7800]  dump_stack_lvl+0x189/0x250
[  289.807427][ T7800]  ? __pfx____ratelimit+0x10/0x10
[  289.807466][ T7800]  ? __pfx_dump_stack_lvl+0x10/0x10
[  289.807503][ T7800]  ? __pfx__printk+0x10/0x10
[  289.807547][ T7800]  should_fail_ex+0x414/0x560
[  289.807585][ T7800]  _copy_to_user+0x31/0xb0
[  289.807615][ T7800]  simple_read_from_buffer+0xe1/0x170
[  289.807663][ T7800]  proc_fail_nth_read+0x1df/0x250
[  289.807705][ T7800]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.807746][ T7800]  ? rw_verify_area+0x258/0x650
[  289.807773][ T7800]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.807813][ T7800]  vfs_read+0x200/0x980
[  289.807847][ T7800]  ? __pfx___mutex_lock+0x10/0x10
[  289.807870][ T7800]  ? __pfx_vfs_read+0x10/0x10
[  289.807912][ T7800]  ? __fget_files+0x2a/0x420
[  289.807952][ T7800]  ? __fget_files+0x3a0/0x420
[  289.807984][ T7800]  ? __fget_files+0x2a/0x420
[  289.808029][ T7800]  ksys_read+0x145/0x250
[  289.808061][ T7800]  ? __pfx_ksys_read+0x10/0x10
[  289.808088][ T7800]  ? rcu_is_watching+0x15/0xb0
[  289.808126][ T7800]  ? trace_sys_enter+0x25/0x120
[  289.808166][ T7800]  do_syscall_64+0xfa/0x3b0
[  289.808186][ T7800]  ? lockdep_hardirqs_on+0x9c/0x150
[  289.808227][ T7800]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.808250][ T7800]  ? clear_bhb_loop+0x60/0xb0
[  289.808281][ T7800]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.808304][ T7800] RIP: 0033:0x7fb686f8d33c
[  289.808327][ T7800] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  289.808348][ T7800] RSP: 002b:00007fb6861fe030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  289.808374][ T7800] RAX: ffffffffffffffda RBX: 00007fb6871b5fa0 RCX: 00007fb686f8d33c
[  289.808393][ T7800] RDX: 000000000000000f RSI: 00007fb6861fe0a0 RDI: 0000000000000005
[  289.808409][ T7800] RBP: 00007fb6861fe090 R08: 0000000000000000 R09: 0000000000000000
[  289.808425][ T7800] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  289.808439][ T7800] R13: 0000000000000000 R14: 00007fb6871b5fa0 R15: 00007ffdd6620bb8
[  289.808477][ T7800]  </TASK>
[  289.858811][ T7809] FAULT_INJECTION: forcing a failure.
[  289.858811][ T7809] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  289.942206][ T7811] FAULT_INJECTION: forcing a failure.
[  289.942206][ T7811] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  289.947066][ T7805] CPU: 0 UID: 0 PID: 7805 Comm: syz.3.720 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  289.947101][ T7805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  289.947116][ T7805] Call Trace:
[  289.947128][ T7805]  <TASK>
[  289.947140][ T7805]  dump_stack_lvl+0x189/0x250
[  289.947184][ T7805]  ? __pfx____ratelimit+0x10/0x10
[  289.947224][ T7805]  ? __pfx_dump_stack_lvl+0x10/0x10
[  289.947263][ T7805]  ? __pfx__printk+0x10/0x10
[  289.947307][ T7805]  should_fail_ex+0x414/0x560
[  289.947345][ T7805]  _copy_to_user+0x31/0xb0
[  289.947373][ T7805]  simple_read_from_buffer+0xe1/0x170
[  289.947412][ T7805]  proc_fail_nth_read+0x1df/0x250
[  289.947454][ T7805]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.947494][ T7805]  ? rw_verify_area+0x258/0x650
[  289.947521][ T7805]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.947559][ T7805]  vfs_read+0x200/0x980
[  289.947595][ T7805]  ? __pfx___mutex_lock+0x10/0x10
[  289.947618][ T7805]  ? __pfx_vfs_read+0x10/0x10
[  289.947648][ T7805]  ? __fget_files+0x2a/0x420
[  289.947688][ T7805]  ? __fget_files+0x3a0/0x420
[  289.947721][ T7805]  ? __fget_files+0x2a/0x420
[  289.947767][ T7805]  ksys_read+0x145/0x250
[  289.947798][ T7805]  ? __pfx_ksys_read+0x10/0x10
[  289.947828][ T7805]  ? rcu_is_watching+0x15/0xb0
[  289.947874][ T7805]  ? trace_sys_enter+0x25/0x120
[  289.947915][ T7805]  do_syscall_64+0xfa/0x3b0
[  289.947936][ T7805]  ? lockdep_hardirqs_on+0x9c/0x150
[  289.947985][ T7805]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.948011][ T7805]  ? clear_bhb_loop+0x60/0xb0
[  289.948040][ T7805]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.948065][ T7805] RIP: 0033:0x7fd61ff8d33c
[  289.948088][ T7805] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  289.948110][ T7805] RSP: 002b:00007fd620da8030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  289.948135][ T7805] RAX: ffffffffffffffda RBX: 00007fd6201b5fa0 RCX: 00007fd61ff8d33c
[  289.948172][ T7805] RDX: 000000000000000f RSI: 00007fd620da80a0 RDI: 0000000000000005
[  289.948202][ T7805] RBP: 00007fd620da8090 R08: 0000000000000000 R09: 0000000000000000
[  289.948218][ T7805] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  289.948232][ T7805] R13: 0000000000000000 R14: 00007fd6201b5fa0 R15: 00007ffcd0239938
[  289.948271][ T7805]  </TASK>
[  289.950290][ T7813] FAULT_INJECTION: forcing a failure.
[  289.950290][ T7813] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  289.950323][ T7813] CPU: 0 UID: 0 PID: 7813 Comm: syz.1.724 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  289.950348][ T7813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  289.950364][ T7813] Call Trace:
[  289.950374][ T7813]  <TASK>
[  289.950387][ T7813]  dump_stack_lvl+0x189/0x250
[  289.950430][ T7813]  ? __pfx____ratelimit+0x10/0x10
[  289.950467][ T7813]  ? __pfx_dump_stack_lvl+0x10/0x10
[  289.950504][ T7813]  ? __pfx__printk+0x10/0x10
[  289.950545][ T7813]  should_fail_ex+0x414/0x560
[  289.950583][ T7813]  _copy_to_user+0x31/0xb0
[  289.950611][ T7813]  simple_read_from_buffer+0xe1/0x170
[  289.950649][ T7813]  proc_fail_nth_read+0x1df/0x250
[  289.950688][ T7813]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.950728][ T7813]  ? rw_verify_area+0x258/0x650
[  289.950754][ T7813]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  289.950807][ T7813]  vfs_read+0x200/0x980
[  289.950858][ T7813]  ? __pfx___mutex_lock+0x10/0x10
[  289.950891][ T7813]  ? __pfx_vfs_read+0x10/0x10
[  289.950920][ T7813]  ? __fget_files+0x2a/0x420
[  289.950960][ T7813]  ? __fget_files+0x3a0/0x420
[  289.950991][ T7813]  ? __fget_files+0x2a/0x420
[  289.951035][ T7813]  ksys_read+0x145/0x250
[  289.951067][ T7813]  ? __pfx_ksys_read+0x10/0x10
[  289.951095][ T7813]  ? rcu_is_watching+0x15/0xb0
[  289.951131][ T7813]  ? trace_sys_enter+0x25/0x120
[  289.951172][ T7813]  do_syscall_64+0xfa/0x3b0
[  289.951192][ T7813]  ? lockdep_hardirqs_on+0x9c/0x150
[  289.951227][ T7813]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.951252][ T7813]  ? clear_bhb_loop+0x60/0xb0
[  289.951282][ T7813]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.951307][ T7813] RIP: 0033:0x7f5cadb8d33c
[  289.951327][ T7813] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  289.951350][ T7813] RSP: 002b:00007f5cae951030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  289.951376][ T7813] RAX: ffffffffffffffda RBX: 00007f5caddb5fa0 RCX: 00007f5cadb8d33c
[  289.951395][ T7813] RDX: 000000000000000f RSI: 00007f5cae9510a0 RDI: 0000000000000005
[  289.951409][ T7813] RBP: 00007f5cae951090 R08: 0000000000000000 R09: 0000000000000000
[  289.951425][ T7813] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  289.951440][ T7813] R13: 0000000000000000 R14: 00007f5caddb5fa0 R15: 00007ffdb22ecb98
[  289.951478][ T7813]  </TASK>
[  290.020484][ T7815] FAULT_INJECTION: forcing a failure.
[  290.020484][ T7815] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  290.096519][ T7809] CPU: 1 UID: 0 PID: 7809 Comm: syz.0.722 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  290.096556][ T7809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  290.096571][ T7809] Call Trace:
[  290.096581][ T7809]  <TASK>
[  290.096595][ T7809]  dump_stack_lvl+0x189/0x250
[  290.096638][ T7809]  ? __pfx____ratelimit+0x10/0x10
[  290.096676][ T7809]  ? __pfx_dump_stack_lvl+0x10/0x10
[  290.096712][ T7809]  ? __pfx__printk+0x10/0x10
[  290.096753][ T7809]  should_fail_ex+0x414/0x560
[  290.096809][ T7809]  _copy_to_user+0x31/0xb0
[  290.096859][ T7809]  simple_read_from_buffer+0xe1/0x170
[  290.096899][ T7809]  proc_fail_nth_read+0x1df/0x250
[  290.096941][ T7809]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  290.096984][ T7809]  ? rw_verify_area+0x258/0x650
[  290.097011][ T7809]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  290.097051][ T7809]  vfs_read+0x200/0x980
[  290.097088][ T7809]  ? __pfx___mutex_lock+0x10/0x10
[  290.097111][ T7809]  ? __pfx_vfs_read+0x10/0x10
[  290.097143][ T7809]  ? __fget_files+0x2a/0x420
[  290.097183][ T7809]  ? __fget_files+0x3a0/0x420
[  290.097216][ T7809]  ? __fget_files+0x2a/0x420
[  290.097262][ T7809]  ksys_read+0x145/0x250
[  290.097293][ T7809]  ? __pfx_ksys_read+0x10/0x10
[  290.097322][ T7809]  ? rcu_is_watching+0x15/0xb0
[  290.097361][ T7809]  ? trace_sys_enter+0x25/0x120
[  290.097402][ T7809]  do_syscall_64+0xfa/0x3b0
[  290.097424][ T7809]  ? lockdep_hardirqs_on+0x9c/0x150
[  290.097461][ T7809]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.097487][ T7809]  ? clear_bhb_loop+0x60/0xb0
[  290.097519][ T7809]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.097544][ T7809] RIP: 0033:0x7fd24178d33c
[  290.097566][ T7809] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  290.097590][ T7809] RSP: 002b:00007fd242673030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  290.097618][ T7809] RAX: ffffffffffffffda RBX: 00007fd2419b5fa0 RCX: 00007fd24178d33c
[  290.097637][ T7809] RDX: 000000000000000f RSI: 00007fd2426730a0 RDI: 0000000000000005
[  290.097652][ T7809] RBP: 00007fd242673090 R08: 0000000000000000 R09: 0000000000000000
[  290.097669][ T7809] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  290.097684][ T7809] R13: 0000000000000000 R14: 00007fd2419b5fa0 R15: 00007ffeb781b388
[  290.097723][ T7809]  </TASK>
[  290.143362][ T7817] FAULT_INJECTION: forcing a failure.
[  290.143362][ T7817] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  290.152663][ T7811] CPU: 0 UID: 0 PID: 7811 Comm: syz.4.723 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  290.152699][ T7811] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  290.152714][ T7811] Call Trace:
[  290.152726][ T7811]  <TASK>
[  290.152737][ T7811]  dump_stack_lvl+0x189/0x250
[  290.152780][ T7811]  ? __pfx____ratelimit+0x10/0x10
[  290.152817][ T7811]  ? __pfx_dump_stack_lvl+0x10/0x10
[  290.152853][ T7811]  ? __pfx__printk+0x10/0x10
[  290.152895][ T7811]  should_fail_ex+0x414/0x560
[  290.152932][ T7811]  _copy_to_user+0x31/0xb0
[  290.152960][ T7811]  simple_read_from_buffer+0xe1/0x170
[  290.152999][ T7811]  proc_fail_nth_read+0x1df/0x250
[  290.153038][ T7811]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  290.153077][ T7811]  ? rw_verify_area+0x258/0x650
[  290.153104][ T7811]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  290.153140][ T7811]  vfs_read+0x200/0x980
[  290.153175][ T7811]  ? __pfx___mutex_lock+0x10/0x10
[  290.153198][ T7811]  ? __pfx_vfs_read+0x10/0x10
[  290.153229][ T7811]  ? __fget_files+0x2a/0x420
[  290.153267][ T7811]  ? __fget_files+0x3a0/0x420
[  290.153299][ T7811]  ? __fget_files+0x2a/0x420
[  290.153341][ T7811]  ksys_read+0x145/0x250
[  290.153374][ T7811]  ? __pfx_ksys_read+0x10/0x10
[  290.153401][ T7811]  ? rcu_is_watching+0x15/0xb0
[  290.153438][ T7811]  ? trace_sys_enter+0x25/0x120
[  290.153477][ T7811]  do_syscall_64+0xfa/0x3b0
[  290.153499][ T7811]  ? lockdep_hardirqs_on+0x9c/0x150
[  290.153534][ T7811]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.153560][ T7811]  ? clear_bhb_loop+0x60/0xb0
[  290.153598][ T7811]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.153624][ T7811] RIP: 0033:0x7f051f98d33c
[  290.153647][ T7811] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  290.153668][ T7811] RSP: 002b:00007f052074c030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  290.153697][ T7811] RAX: ffffffffffffffda RBX: 00007f051fbb5fa0 RCX: 00007f051f98d33c
[  290.153715][ T7811] RDX: 000000000000000f RSI: 00007f052074c0a0 RDI: 0000000000000005
[  290.153731][ T7811] RBP: 00007f052074c090 R08: 0000000000000000 R09: 0000000000000000
[  290.153747][ T7811] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  290.153760][ T7811] R13: 0000000000000000 R14: 00007f051fbb5fa0 R15: 00007ffc1cfc12c8
[  290.153798][ T7811]  </TASK>
[  290.170216][ T7815] CPU: 0 UID: 0 PID: 7815 Comm: syz.2.725 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  290.170252][ T7815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  290.170268][ T7815] Call Trace:
[  290.170279][ T7815]  <TASK>
[  290.170290][ T7815]  dump_stack_lvl+0x189/0x250
[  290.170334][ T7815]  ? __pfx____ratelimit+0x10/0x10
[  290.170373][ T7815]  ? __pfx_dump_stack_lvl+0x10/0x10
[  290.170410][ T7815]  ? __pfx__printk+0x10/0x10
[  290.170453][ T7815]  should_fail_ex+0x414/0x560
[  290.170492][ T7815]  _copy_to_user+0x31/0xb0
[  290.170520][ T7815]  simple_read_from_buffer+0xe1/0x170
[  290.170569][ T7815]  proc_fail_nth_read+0x1df/0x250
[  290.170611][ T7815]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  290.170651][ T7815]  ? rw_verify_area+0x258/0x650
[  290.170678][ T7815]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  290.170719][ T7815]  vfs_read+0x200/0x980
[  290.170752][ T7815]  ? __pfx___mutex_lock+0x10/0x10
[  290.170785][ T7815]  ? __pfx_vfs_read+0x10/0x10
[  290.170816][ T7815]  ? __fget_files+0x2a/0x420
[  290.170856][ T7815]  ? __fget_files+0x3a0/0x420
[  290.170887][ T7815]  ? __fget_files+0x2a/0x420
[  290.170933][ T7815]  ksys_read+0x145/0x250
[  290.170966][ T7815]  ? __pfx_ksys_read+0x10/0x10
[  290.170994][ T7815]  ? rcu_is_watching+0x15/0xb0
[  290.171034][ T7815]  ? trace_sys_enter+0x25/0x120
[  290.171074][ T7815]  do_syscall_64+0xfa/0x3b0
[  290.171107][ T7815]  ? lockdep_hardirqs_on+0x9c/0x150
[  290.171143][ T7815]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.171167][ T7815]  ? clear_bhb_loop+0x60/0xb0
[  290.171199][ T7815]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.171222][ T7815] RIP: 0033:0x7fb686f8d33c
[  290.171245][ T7815] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  290.171285][ T7815] RSP: 002b:00007fb6861fe030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  290.171312][ T7815] RAX: ffffffffffffffda RBX: 00007fb6871b5fa0 RCX: 00007fb686f8d33c
[  290.171331][ T7815] RDX: 000000000000000f RSI: 00007fb6861fe0a0 RDI: 0000000000000005
[  290.171347][ T7815] RBP: 00007fb6861fe090 R08: 0000000000000000 R09: 0000000000000000
[  290.171364][ T7815] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  290.171378][ T7815] R13: 0000000000000000 R14: 00007fb6871b5fa0 R15: 00007ffdd6620bb8
[  290.171419][ T7815]  </TASK>
[  290.812450][ T7824] FAULT_INJECTION: forcing a failure.
[  290.812450][ T7824] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  290.816556][ T7817] CPU: 1 UID: 0 PID: 7817 Comm: syz.3.727 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  290.816591][ T7817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  290.816608][ T7817] Call Trace:
[  290.816618][ T7817]  <TASK>
[  290.816629][ T7817]  dump_stack_lvl+0x189/0x250
[  290.816673][ T7817]  ? __pfx____ratelimit+0x10/0x10
[  290.816710][ T7817]  ? __pfx_dump_stack_lvl+0x10/0x10
[  290.816748][ T7817]  ? __pfx__printk+0x10/0x10
[  290.816806][ T7817]  should_fail_ex+0x414/0x560
[  290.816846][ T7817]  _copy_to_user+0x31/0xb0
[  290.816874][ T7817]  simple_read_from_buffer+0xe1/0x170
[  290.816913][ T7817]  proc_fail_nth_read+0x1df/0x250
[  290.816955][ T7817]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  290.816996][ T7817]  ? rw_verify_area+0x258/0x650
[  290.817023][ T7817]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  290.817060][ T7817]  vfs_read+0x200/0x980
[  290.817096][ T7817]  ? __pfx___mutex_lock+0x10/0x10
[  290.817121][ T7817]  ? __pfx_vfs_read+0x10/0x10
[  290.817152][ T7817]  ? __fget_files+0x2a/0x420
[  290.817191][ T7817]  ? __fget_files+0x3a0/0x420
[  290.817223][ T7817]  ? __fget_files+0x2a/0x420
[  290.817269][ T7817]  ksys_read+0x145/0x250
[  290.817300][ T7817]  ? __pfx_ksys_read+0x10/0x10
[  290.817328][ T7817]  ? rcu_is_watching+0x15/0xb0
[  290.817365][ T7817]  ? trace_sys_enter+0x25/0x120
[  290.817407][ T7817]  do_syscall_64+0xfa/0x3b0
[  290.817428][ T7817]  ? lockdep_hardirqs_on+0x9c/0x150
[  290.817465][ T7817]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.817497][ T7817]  ? clear_bhb_loop+0x60/0xb0
[  290.817536][ T7817]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.817558][ T7817] RIP: 0033:0x7fd61ff8d33c
[  290.817578][ T7817] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  290.817602][ T7817] RSP: 002b:00007fd620da8030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  290.817629][ T7817] RAX: ffffffffffffffda RBX: 00007fd6201b5fa0 RCX: 00007fd61ff8d33c
[  290.817648][ T7817] RDX: 000000000000000f RSI: 00007fd620da80a0 RDI: 0000000000000005
[  290.817665][ T7817] RBP: 00007fd620da8090 R08: 0000000000000000 R09: 0000000000000000
[  290.817684][ T7817] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  290.817699][ T7817] R13: 0000000000000000 R14: 00007fd6201b5fa0 R15: 00007ffcd0239938
[  290.817741][ T7817]  </TASK>
[  290.885762][ T7827] FAULT_INJECTION: forcing a failure.
[  290.885762][ T7827] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  290.898830][ T7828] FAULT_INJECTION: forcing a failure.
[  290.898830][ T7828] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  290.914182][ T7827] CPU: 1 UID: 0 PID: 7827 Comm: syz.1.726 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  290.914217][ T7827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  290.914234][ T7827] Call Trace:
[  290.914244][ T7827]  <TASK>
[  290.914255][ T7827]  dump_stack_lvl+0x189/0x250
[  290.914347][ T7827]  ? __pfx____ratelimit+0x10/0x10
[  290.914383][ T7827]  ? __pfx_dump_stack_lvl+0x10/0x10
[  290.914420][ T7827]  ? __pfx__printk+0x10/0x10
[  290.914461][ T7827]  should_fail_ex+0x414/0x560
[  290.914506][ T7827]  _copy_to_user+0x31/0xb0
[  290.914536][ T7827]  simple_read_from_buffer+0xe1/0x170
[  290.914576][ T7827]  proc_fail_nth_read+0x1df/0x250
[  290.914615][ T7827]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  290.914655][ T7827]  ? rw_verify_area+0x258/0x650
[  290.914682][ T7827]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  290.914718][ T7827]  vfs_read+0x200/0x980
[  290.914751][ T7827]  ? __pfx___mutex_lock+0x10/0x10
[  290.914775][ T7827]  ? __pfx_vfs_read+0x10/0x10
[  290.914804][ T7827]  ? __fget_files+0x2a/0x420
[  290.914844][ T7827]  ? __fget_files+0x3a0/0x420
[  290.914874][ T7827]  ? __fget_files+0x2a/0x420
[  290.914918][ T7827]  ksys_read+0x145/0x250
[  290.914950][ T7827]  ? __pfx_ksys_read+0x10/0x10
[  290.914977][ T7827]  ? rcu_is_watching+0x15/0xb0
[  290.915015][ T7827]  ? trace_sys_enter+0x25/0x120
[  290.915054][ T7827]  do_syscall_64+0xfa/0x3b0
[  290.915076][ T7827]  ? lockdep_hardirqs_on+0x9c/0x150
[  290.915112][ T7827]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.915135][ T7827]  ? clear_bhb_loop+0x60/0xb0
[  290.915172][ T7827]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.915196][ T7827] RIP: 0033:0x7f5cadb8d33c
[  290.915218][ T7827] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  290.915240][ T7827] RSP: 002b:00007f5cae930030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  290.915267][ T7827] RAX: ffffffffffffffda RBX: 00007f5caddb6080 RCX: 00007f5cadb8d33c
[  290.915285][ T7827] RDX: 000000000000000f RSI: 00007f5cae9300a0 RDI: 0000000000000005
[  290.915301][ T7827] RBP: 00007f5cae930090 R08: 0000000000000000 R09: 0000000000000000
[  290.915316][ T7827] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  290.915350][ T7827] R13: 0000000000000001 R14: 00007f5caddb6080 R15: 00007ffdb22ecb98
[  290.915390][ T7827]  </TASK>
[  290.916380][ T7824] CPU: 1 UID: 0 PID: 7824 Comm: syz.0.728 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  290.916413][ T7824] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  290.916428][ T7824] Call Trace:
[  290.916438][ T7824]  <TASK>
[  290.916450][ T7824]  dump_stack_lvl+0x189/0x250
[  290.916504][ T7824]  ? __pfx____ratelimit+0x10/0x10
[  290.916541][ T7824]  ? __pfx_dump_stack_lvl+0x10/0x10
[  290.916579][ T7824]  ? __pfx__printk+0x10/0x10
[  290.916619][ T7824]  should_fail_ex+0x414/0x560
[  290.916658][ T7824]  _copy_to_user+0x31/0xb0
[  290.916688][ T7824]  simple_read_from_buffer+0xe1/0x170
[  290.916726][ T7824]  proc_fail_nth_read+0x1df/0x250
[  290.916765][ T7824]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  290.916806][ T7824]  ? rw_verify_area+0x258/0x650
[  290.916833][ T7824]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  290.916870][ T7824]  vfs_read+0x200/0x980
[  290.916906][ T7824]  ? __pfx___mutex_lock+0x10/0x10
[  290.916930][ T7824]  ? __pfx_vfs_read+0x10/0x10
[  290.916960][ T7824]  ? __fget_files+0x2a/0x420
[  290.916999][ T7824]  ? __fget_files+0x3a0/0x420
[  290.917032][ T7824]  ? __fget_files+0x2a/0x420
[  290.917077][ T7824]  ksys_read+0x145/0x250
[  290.917109][ T7824]  ? __pfx_ksys_read+0x10/0x10
[  290.917139][ T7824]  ? rcu_is_watching+0x15/0xb0
[  290.917177][ T7824]  ? trace_sys_enter+0x25/0x120
[  290.917217][ T7824]  do_syscall_64+0xfa/0x3b0
[  290.917239][ T7824]  ? lockdep_hardirqs_on+0x9c/0x150
[  290.917278][ T7824]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.917304][ T7824]  ? clear_bhb_loop+0x60/0xb0
[  290.917336][ T7824]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.917361][ T7824] RIP: 0033:0x7fd24178d33c
[  290.917382][ T7824] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  290.917406][ T7824] RSP: 002b:00007fd242652030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  290.917432][ T7824] RAX: ffffffffffffffda RBX: 00007fd2419b6080 RCX: 00007fd24178d33c
[  290.917451][ T7824] RDX: 000000000000000f RSI: 00007fd2426520a0 RDI: 0000000000000005
[  290.917468][ T7824] RBP: 00007fd242652090 R08: 0000000000000000 R09: 0000000000000000
[  290.917491][ T7824] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  290.917507][ T7824] R13: 0000000000000001 R14: 00007fd2419b6080 R15: 00007ffeb781b388
[  290.917549][ T7824]  </TASK>
[  291.054283][ T7826] FAULT_INJECTION: forcing a failure.
[  291.054283][ T7826] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  291.089880][ T7828] CPU: 0 UID: 0 PID: 7828 Comm: syz.4.729 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  291.089916][ T7828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  291.089932][ T7828] Call Trace:
[  291.089943][ T7828]  <TASK>
[  291.089954][ T7828]  dump_stack_lvl+0x189/0x250
[  291.089996][ T7828]  ? __pfx____ratelimit+0x10/0x10
[  291.090034][ T7828]  ? __pfx_dump_stack_lvl+0x10/0x10
[  291.090071][ T7828]  ? __pfx__printk+0x10/0x10
[  291.090110][ T7828]  should_fail_ex+0x414/0x560
[  291.090150][ T7828]  _copy_to_user+0x31/0xb0
[  291.090178][ T7828]  simple_read_from_buffer+0xe1/0x170
[  291.090216][ T7828]  proc_fail_nth_read+0x1df/0x250
[  291.090256][ T7828]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.090295][ T7828]  ? rw_verify_area+0x258/0x650
[  291.090321][ T7828]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.090358][ T7828]  vfs_read+0x200/0x980
[  291.090392][ T7828]  ? __pfx___mutex_lock+0x10/0x10
[  291.090416][ T7828]  ? __pfx_vfs_read+0x10/0x10
[  291.090445][ T7828]  ? __fget_files+0x2a/0x420
[  291.090505][ T7828]  ? __fget_files+0x3a0/0x420
[  291.090536][ T7828]  ? __fget_files+0x2a/0x420
[  291.090580][ T7828]  ksys_read+0x145/0x250
[  291.090610][ T7828]  ? __pfx_ksys_read+0x10/0x10
[  291.090638][ T7828]  ? rcu_is_watching+0x15/0xb0
[  291.090675][ T7828]  ? trace_sys_enter+0x25/0x120
[  291.090715][ T7828]  do_syscall_64+0xfa/0x3b0
[  291.090735][ T7828]  ? lockdep_hardirqs_on+0x9c/0x150
[  291.090775][ T7828]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.090800][ T7828]  ? clear_bhb_loop+0x60/0xb0
[  291.090831][ T7828]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.090856][ T7828] RIP: 0033:0x7f051f98d33c
[  291.090878][ T7828] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  291.090902][ T7828] RSP: 002b:00007f052072b030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  291.090928][ T7828] RAX: ffffffffffffffda RBX: 00007f051fbb6080 RCX: 00007f051f98d33c
[  291.090946][ T7828] RDX: 000000000000000f RSI: 00007f052072b0a0 RDI: 0000000000000005
[  291.090963][ T7828] RBP: 00007f052072b090 R08: 0000000000000000 R09: 0000000000000000
[  291.090978][ T7828] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  291.090992][ T7828] R13: 0000000000000001 R14: 00007f051fbb6080 R15: 00007ffc1cfc12c8
[  291.091032][ T7828]  </TASK>
[  291.092377][ T7830] FAULT_INJECTION: forcing a failure.
[  291.092377][ T7830] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  291.118450][ T7826] CPU: 1 UID: 0 PID: 7826 Comm: syz.2.730 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  291.118484][ T7826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  291.118500][ T7826] Call Trace:
[  291.118510][ T7826]  <TASK>
[  291.118523][ T7826]  dump_stack_lvl+0x189/0x250
[  291.118567][ T7826]  ? __pfx____ratelimit+0x10/0x10
[  291.118603][ T7826]  ? __pfx_dump_stack_lvl+0x10/0x10
[  291.118640][ T7826]  ? __pfx__printk+0x10/0x10
[  291.118675][ T7826]  should_fail_ex+0x414/0x560
[  291.118711][ T7826]  _copy_to_user+0x31/0xb0
[  291.118747][ T7826]  simple_read_from_buffer+0xe1/0x170
[  291.118784][ T7826]  proc_fail_nth_read+0x1df/0x250
[  291.118824][ T7826]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.118864][ T7826]  ? rw_verify_area+0x258/0x650
[  291.118890][ T7826]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.118929][ T7826]  vfs_read+0x200/0x980
[  291.118964][ T7826]  ? __pfx___mutex_lock+0x10/0x10
[  291.118989][ T7826]  ? __pfx_vfs_read+0x10/0x10
[  291.119019][ T7826]  ? __fget_files+0x2a/0x420
[  291.119057][ T7826]  ? __fget_files+0x3a0/0x420
[  291.119088][ T7826]  ? __fget_files+0x2a/0x420
[  291.119133][ T7826]  ksys_read+0x145/0x250
[  291.119163][ T7826]  ? __pfx_ksys_read+0x10/0x10
[  291.119190][ T7826]  ? rcu_is_watching+0x15/0xb0
[  291.119229][ T7826]  ? trace_sys_enter+0x25/0x120
[  291.119268][ T7826]  do_syscall_64+0xfa/0x3b0
[  291.119290][ T7826]  ? lockdep_hardirqs_on+0x9c/0x150
[  291.119325][ T7826]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.119349][ T7826]  ? clear_bhb_loop+0x60/0xb0
[  291.119380][ T7826]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.119405][ T7826] RIP: 0033:0x7fb686f8d33c
[  291.119426][ T7826] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  291.119449][ T7826] RSP: 002b:00007fb6861fe030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  291.119482][ T7826] RAX: ffffffffffffffda RBX: 00007fb6871b5fa0 RCX: 00007fb686f8d33c
[  291.119500][ T7826] RDX: 000000000000000f RSI: 00007fb6861fe0a0 RDI: 0000000000000005
[  291.119516][ T7826] RBP: 00007fb6861fe090 R08: 0000000000000000 R09: 0000000000000000
[  291.119532][ T7826] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  291.119546][ T7826] R13: 0000000000000000 R14: 00007fb6871b5fa0 R15: 00007ffdd6620bb8
[  291.119585][ T7826]  </TASK>
[  291.202202][ T7832] FAULT_INJECTION: forcing a failure.
[  291.202202][ T7832] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  291.259650][ T7830] CPU: 0 UID: 0 PID: 7830 Comm: syz.0.731 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  291.259687][ T7830] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  291.259704][ T7830] Call Trace:
[  291.259720][ T7830]  <TASK>
[  291.259733][ T7830]  dump_stack_lvl+0x189/0x250
[  291.259776][ T7830]  ? __pfx____ratelimit+0x10/0x10
[  291.259815][ T7830]  ? __pfx_dump_stack_lvl+0x10/0x10
[  291.259853][ T7830]  ? __pfx__printk+0x10/0x10
[  291.259894][ T7830]  should_fail_ex+0x414/0x560
[  291.259946][ T7830]  _copy_to_user+0x31/0xb0
[  291.259974][ T7830]  simple_read_from_buffer+0xe1/0x170
[  291.260012][ T7830]  proc_fail_nth_read+0x1df/0x250
[  291.260050][ T7830]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.260092][ T7830]  ? rw_verify_area+0x258/0x650
[  291.260118][ T7830]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.260156][ T7830]  vfs_read+0x200/0x980
[  291.260191][ T7830]  ? __pfx___mutex_lock+0x10/0x10
[  291.260215][ T7830]  ? __pfx_vfs_read+0x10/0x10
[  291.260243][ T7830]  ? __fget_files+0x2a/0x420
[  291.260281][ T7830]  ? __fget_files+0x3a0/0x420
[  291.260311][ T7830]  ? __fget_files+0x2a/0x420
[  291.260355][ T7830]  ksys_read+0x145/0x250
[  291.260387][ T7830]  ? __pfx_ksys_read+0x10/0x10
[  291.260414][ T7830]  ? rcu_is_watching+0x15/0xb0
[  291.260461][ T7830]  ? trace_sys_enter+0x25/0x120
[  291.260500][ T7830]  do_syscall_64+0xfa/0x3b0
[  291.260525][ T7830]  ? lockdep_hardirqs_on+0x9c/0x150
[  291.260561][ T7830]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.260586][ T7830]  ? clear_bhb_loop+0x60/0xb0
[  291.260615][ T7830]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.260640][ T7830] RIP: 0033:0x7fd24178d33c
[  291.260667][ T7830] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  291.260690][ T7830] RSP: 002b:00007fd242673030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  291.260715][ T7830] RAX: ffffffffffffffda RBX: 00007fd2419b5fa0 RCX: 00007fd24178d33c
[  291.260733][ T7830] RDX: 000000000000000f RSI: 00007fd2426730a0 RDI: 0000000000000005
[  291.260749][ T7830] RBP: 00007fd242673090 R08: 0000000000000000 R09: 0000000000000000
[  291.260782][ T7830] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  291.260798][ T7830] R13: 0000000000000000 R14: 00007fd2419b5fa0 R15: 00007ffeb781b388
[  291.260837][ T7830]  </TASK>
[  291.396470][ T7837] FAULT_INJECTION: forcing a failure.
[  291.396470][ T7837] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  291.442166][ T7838] FAULT_INJECTION: forcing a failure.
[  291.442166][ T7838] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  291.512711][ T7832] CPU: 0 UID: 0 PID: 7832 Comm: syz.1.732 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  291.512748][ T7832] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  291.512764][ T7832] Call Trace:
[  291.512775][ T7832]  <TASK>
[  291.512785][ T7832]  dump_stack_lvl+0x189/0x250
[  291.512829][ T7832]  ? __pfx____ratelimit+0x10/0x10
[  291.512866][ T7832]  ? __pfx_dump_stack_lvl+0x10/0x10
[  291.512902][ T7832]  ? __pfx__printk+0x10/0x10
[  291.512943][ T7832]  should_fail_ex+0x414/0x560
[  291.512981][ T7832]  _copy_to_user+0x31/0xb0
[  291.513008][ T7832]  simple_read_from_buffer+0xe1/0x170
[  291.513047][ T7832]  proc_fail_nth_read+0x1df/0x250
[  291.513086][ T7832]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.513124][ T7832]  ? rw_verify_area+0x258/0x650
[  291.513150][ T7832]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.513186][ T7832]  vfs_read+0x200/0x980
[  291.513221][ T7832]  ? __pfx___mutex_lock+0x10/0x10
[  291.513245][ T7832]  ? __pfx_vfs_read+0x10/0x10
[  291.513275][ T7832]  ? __fget_files+0x2a/0x420
[  291.513315][ T7832]  ? __fget_files+0x3a0/0x420
[  291.513348][ T7832]  ? __fget_files+0x2a/0x420
[  291.513392][ T7832]  ksys_read+0x145/0x250
[  291.513422][ T7832]  ? __pfx_ksys_read+0x10/0x10
[  291.513460][ T7832]  ? rcu_is_watching+0x15/0xb0
[  291.513497][ T7832]  ? trace_sys_enter+0x25/0x120
[  291.513536][ T7832]  do_syscall_64+0xfa/0x3b0
[  291.513558][ T7832]  ? lockdep_hardirqs_on+0x9c/0x150
[  291.513592][ T7832]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.513617][ T7832]  ? clear_bhb_loop+0x60/0xb0
[  291.513648][ T7832]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.513671][ T7832] RIP: 0033:0x7f5cadb8d33c
[  291.513692][ T7832] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  291.513715][ T7832] RSP: 002b:00007f5cae951030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  291.513739][ T7832] RAX: ffffffffffffffda RBX: 00007f5caddb5fa0 RCX: 00007f5cadb8d33c
[  291.513760][ T7832] RDX: 000000000000000f RSI: 00007f5cae9510a0 RDI: 0000000000000005
[  291.513774][ T7832] RBP: 00007f5cae951090 R08: 0000000000000000 R09: 0000000000000000
[  291.513790][ T7832] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  291.513806][ T7832] R13: 0000000000000000 R14: 00007f5caddb5fa0 R15: 00007ffdb22ecb98
[  291.513843][ T7832]  </TASK>
[  291.577407][ T7841] FAULT_INJECTION: forcing a failure.
[  291.577407][ T7841] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  291.587612][ T7837] CPU: 1 UID: 0 PID: 7837 Comm: syz.2.733 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  291.587648][ T7837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  291.587665][ T7837] Call Trace:
[  291.587676][ T7837]  <TASK>
[  291.587694][ T7837]  dump_stack_lvl+0x189/0x250
[  291.587748][ T7837]  ? __pfx____ratelimit+0x10/0x10
[  291.587787][ T7837]  ? __pfx_dump_stack_lvl+0x10/0x10
[  291.587825][ T7837]  ? __pfx__printk+0x10/0x10
[  291.587866][ T7837]  should_fail_ex+0x414/0x560
[  291.587906][ T7837]  _copy_to_user+0x31/0xb0
[  291.587935][ T7837]  simple_read_from_buffer+0xe1/0x170
[  291.587988][ T7837]  proc_fail_nth_read+0x1df/0x250
[  291.588027][ T7837]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.588065][ T7837]  ? rw_verify_area+0x258/0x650
[  291.588092][ T7837]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.588129][ T7837]  vfs_read+0x200/0x980
[  291.588163][ T7837]  ? __pfx___mutex_lock+0x10/0x10
[  291.588187][ T7837]  ? __pfx_vfs_read+0x10/0x10
[  291.588217][ T7837]  ? __fget_files+0x2a/0x420
[  291.588256][ T7837]  ? __fget_files+0x3a0/0x420
[  291.588286][ T7837]  ? __fget_files+0x2a/0x420
[  291.588339][ T7837]  ksys_read+0x145/0x250
[  291.588371][ T7837]  ? __pfx_ksys_read+0x10/0x10
[  291.588399][ T7837]  ? rcu_is_watching+0x15/0xb0
[  291.588436][ T7837]  ? trace_sys_enter+0x25/0x120
[  291.588474][ T7837]  do_syscall_64+0xfa/0x3b0
[  291.588495][ T7837]  ? lockdep_hardirqs_on+0x9c/0x150
[  291.588531][ T7837]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.588556][ T7837]  ? clear_bhb_loop+0x60/0xb0
[  291.588588][ T7837]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.588610][ T7837] RIP: 0033:0x7fb686f8d33c
[  291.588633][ T7837] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  291.588654][ T7837] RSP: 002b:00007fb6861fe030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  291.588681][ T7837] RAX: ffffffffffffffda RBX: 00007fb6871b5fa0 RCX: 00007fb686f8d33c
[  291.588700][ T7837] RDX: 000000000000000f RSI: 00007fb6861fe0a0 RDI: 0000000000000005
[  291.588722][ T7837] RBP: 00007fb6861fe090 R08: 0000000000000000 R09: 0000000000000000
[  291.588738][ T7837] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  291.588754][ T7837] R13: 0000000000000000 R14: 00007fb6871b5fa0 R15: 00007ffdd6620bb8
[  291.588793][ T7837]  </TASK>
[  291.605574][ T7838] CPU: 1 UID: 0 PID: 7838 Comm: syz.3.734 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  291.605602][ T7838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  291.605614][ T7838] Call Trace:
[  291.605623][ T7838]  <TASK>
[  291.605632][ T7838]  dump_stack_lvl+0x189/0x250
[  291.605668][ T7838]  ? __pfx____ratelimit+0x10/0x10
[  291.605698][ T7838]  ? __pfx_dump_stack_lvl+0x10/0x10
[  291.605736][ T7838]  ? __pfx__printk+0x10/0x10
[  291.605771][ T7838]  should_fail_ex+0x414/0x560
[  291.605807][ T7838]  _copy_to_user+0x31/0xb0
[  291.605835][ T7838]  simple_read_from_buffer+0xe1/0x170
[  291.605877][ T7838]  proc_fail_nth_read+0x1df/0x250
[  291.605916][ T7838]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.605956][ T7838]  ? rw_verify_area+0x258/0x650
[  291.605993][ T7838]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.606027][ T7838]  vfs_read+0x200/0x980
[  291.606078][ T7838]  ? __pfx___mutex_lock+0x10/0x10
[  291.606102][ T7838]  ? __pfx_vfs_read+0x10/0x10
[  291.606132][ T7838]  ? __fget_files+0x2a/0x420
[  291.606170][ T7838]  ? __fget_files+0x3a0/0x420
[  291.606201][ T7838]  ? __fget_files+0x2a/0x420
[  291.606245][ T7838]  ksys_read+0x145/0x250
[  291.606275][ T7838]  ? __pfx_ksys_read+0x10/0x10
[  291.606303][ T7838]  ? rcu_is_watching+0x15/0xb0
[  291.606340][ T7838]  ? trace_sys_enter+0x25/0x120
[  291.606379][ T7838]  do_syscall_64+0xfa/0x3b0
[  291.606401][ T7838]  ? lockdep_hardirqs_on+0x9c/0x150
[  291.606436][ T7838]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.606459][ T7838]  ? clear_bhb_loop+0x60/0xb0
[  291.606489][ T7838]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.606513][ T7838] RIP: 0033:0x7fd61ff8d33c
[  291.606534][ T7838] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  291.606557][ T7838] RSP: 002b:00007fd620da8030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  291.606582][ T7838] RAX: ffffffffffffffda RBX: 00007fd6201b5fa0 RCX: 00007fd61ff8d33c
[  291.606601][ T7838] RDX: 000000000000000f RSI: 00007fd620da80a0 RDI: 0000000000000005
[  291.606616][ T7838] RBP: 00007fd620da8090 R08: 0000000000000000 R09: 0000000000000000
[  291.606637][ T7838] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  291.606651][ T7838] R13: 0000000000000000 R14: 00007fd6201b5fa0 R15: 00007ffcd0239938
[  291.606691][ T7838]  </TASK>
[  291.625799][ T7836] FAULT_INJECTION: forcing a failure.
[  291.625799][ T7836] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  291.720925][ T7841] CPU: 0 UID: 0 PID: 7841 Comm: syz.1.737 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  291.720962][ T7841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  291.720978][ T7841] Call Trace:
[  291.720988][ T7841]  <TASK>
[  291.720999][ T7841]  dump_stack_lvl+0x189/0x250
[  291.721044][ T7841]  ? __pfx____ratelimit+0x10/0x10
[  291.721083][ T7841]  ? __pfx_dump_stack_lvl+0x10/0x10
[  291.721121][ T7841]  ? __pfx__printk+0x10/0x10
[  291.721160][ T7841]  should_fail_ex+0x414/0x560
[  291.721199][ T7841]  _copy_to_user+0x31/0xb0
[  291.721227][ T7841]  simple_read_from_buffer+0xe1/0x170
[  291.721265][ T7841]  proc_fail_nth_read+0x1df/0x250
[  291.721305][ T7841]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.721344][ T7841]  ? rw_verify_area+0x258/0x650
[  291.721370][ T7841]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.721413][ T7841]  vfs_read+0x200/0x980
[  291.721455][ T7841]  ? __pfx___mutex_lock+0x10/0x10
[  291.721480][ T7841]  ? __pfx_vfs_read+0x10/0x10
[  291.721508][ T7841]  ? __fget_files+0x2a/0x420
[  291.721548][ T7841]  ? __fget_files+0x3a0/0x420
[  291.721578][ T7841]  ? __fget_files+0x2a/0x420
[  291.721621][ T7841]  ksys_read+0x145/0x250
[  291.721653][ T7841]  ? __pfx_ksys_read+0x10/0x10
[  291.721681][ T7841]  ? rcu_is_watching+0x15/0xb0
[  291.721717][ T7841]  ? trace_sys_enter+0x25/0x120
[  291.721757][ T7841]  do_syscall_64+0xfa/0x3b0
[  291.721777][ T7841]  ? lockdep_hardirqs_on+0x9c/0x150
[  291.721813][ T7841]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.721838][ T7841]  ? clear_bhb_loop+0x60/0xb0
[  291.721865][ T7841]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.721890][ T7841] RIP: 0033:0x7f5cadb8d33c
[  291.721911][ T7841] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  291.721934][ T7841] RSP: 002b:00007f5cae951030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  291.721959][ T7841] RAX: ffffffffffffffda RBX: 00007f5caddb5fa0 RCX: 00007f5cadb8d33c
[  291.721979][ T7841] RDX: 000000000000000f RSI: 00007f5cae9510a0 RDI: 0000000000000005
[  291.721993][ T7841] RBP: 00007f5cae951090 R08: 0000000000000000 R09: 0000000000000000
[  291.722009][ T7841] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  291.722025][ T7841] R13: 0000000000000000 R14: 00007f5caddb5fa0 R15: 00007ffdb22ecb98
[  291.722062][ T7841]  </TASK>
[  291.764192][ T7842] FAULT_INJECTION: forcing a failure.
[  291.764192][ T7842] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  291.796551][ T7836] CPU: 1 UID: 0 PID: 7836 Comm: syz.4.735 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  291.796588][ T7836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  291.796605][ T7836] Call Trace:
[  291.796616][ T7836]  <TASK>
[  291.796627][ T7836]  dump_stack_lvl+0x189/0x250
[  291.796673][ T7836]  ? __pfx____ratelimit+0x10/0x10
[  291.796719][ T7836]  ? __pfx_dump_stack_lvl+0x10/0x10
[  291.796757][ T7836]  ? __pfx__printk+0x10/0x10
[  291.796799][ T7836]  should_fail_ex+0x414/0x560
[  291.796839][ T7836]  _copy_to_user+0x31/0xb0
[  291.796866][ T7836]  simple_read_from_buffer+0xe1/0x170
[  291.796905][ T7836]  proc_fail_nth_read+0x1df/0x250
[  291.796947][ T7836]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.796989][ T7836]  ? rw_verify_area+0x258/0x650
[  291.797016][ T7836]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.797055][ T7836]  vfs_read+0x200/0x980
[  291.797091][ T7836]  ? __pfx___mutex_lock+0x10/0x10
[  291.797115][ T7836]  ? __pfx_vfs_read+0x10/0x10
[  291.797146][ T7836]  ? __fget_files+0x2a/0x420
[  291.797186][ T7836]  ? __fget_files+0x3a0/0x420
[  291.797216][ T7836]  ? __fget_files+0x2a/0x420
[  291.797262][ T7836]  ksys_read+0x145/0x250
[  291.797295][ T7836]  ? __pfx_ksys_read+0x10/0x10
[  291.797324][ T7836]  ? rcu_is_watching+0x15/0xb0
[  291.797362][ T7836]  ? trace_sys_enter+0x25/0x120
[  291.797414][ T7836]  do_syscall_64+0xfa/0x3b0
[  291.797435][ T7836]  ? lockdep_hardirqs_on+0x9c/0x150
[  291.797473][ T7836]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.797499][ T7836]  ? clear_bhb_loop+0x60/0xb0
[  291.797529][ T7836]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.797555][ T7836] RIP: 0033:0x7f051f98d33c
[  291.797580][ T7836] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  291.797603][ T7836] RSP: 002b:00007f052074c030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  291.797630][ T7836] RAX: ffffffffffffffda RBX: 00007f051fbb5fa0 RCX: 00007f051f98d33c
[  291.797649][ T7836] RDX: 000000000000000f RSI: 00007f052074c0a0 RDI: 0000000000000005
[  291.797666][ T7836] RBP: 00007f052074c090 R08: 0000000000000000 R09: 0000000000000000
[  291.797683][ T7836] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  291.797704][ T7836] R13: 0000000000000000 R14: 00007f051fbb5fa0 R15: 00007ffc1cfc12c8
[  291.797746][ T7836]  </TASK>
[  291.829753][ T7845] FAULT_INJECTION: forcing a failure.
[  291.829753][ T7845] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  291.897044][ T7842] CPU: 0 UID: 0 PID: 7842 Comm: syz.0.736 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  291.897082][ T7842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  291.897098][ T7842] Call Trace:
[  291.897109][ T7842]  <TASK>
[  291.897120][ T7842]  dump_stack_lvl+0x189/0x250
[  291.897165][ T7842]  ? __pfx____ratelimit+0x10/0x10
[  291.897204][ T7842]  ? __pfx_dump_stack_lvl+0x10/0x10
[  291.897242][ T7842]  ? __pfx__printk+0x10/0x10
[  291.897282][ T7842]  should_fail_ex+0x414/0x560
[  291.897336][ T7842]  _copy_to_user+0x31/0xb0
[  291.897365][ T7842]  simple_read_from_buffer+0xe1/0x170
[  291.897412][ T7842]  proc_fail_nth_read+0x1df/0x250
[  291.897455][ T7842]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.897495][ T7842]  ? rw_verify_area+0x258/0x650
[  291.897522][ T7842]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.897562][ T7842]  vfs_read+0x200/0x980
[  291.897595][ T7842]  ? __pfx___mutex_lock+0x10/0x10
[  291.897620][ T7842]  ? __pfx_vfs_read+0x10/0x10
[  291.897650][ T7842]  ? __fget_files+0x2a/0x420
[  291.897690][ T7842]  ? __fget_files+0x3a0/0x420
[  291.897723][ T7842]  ? __fget_files+0x2a/0x420
[  291.897768][ T7842]  ksys_read+0x145/0x250
[  291.897799][ T7842]  ? __pfx_ksys_read+0x10/0x10
[  291.897828][ T7842]  ? rcu_is_watching+0x15/0xb0
[  291.897868][ T7842]  ? trace_sys_enter+0x25/0x120
[  291.897907][ T7842]  do_syscall_64+0xfa/0x3b0
[  291.897941][ T7842]  ? lockdep_hardirqs_on+0x9c/0x150
[  291.897988][ T7842]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.898013][ T7842]  ? clear_bhb_loop+0x60/0xb0
[  291.898041][ T7842]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.898064][ T7842] RIP: 0033:0x7fd24178d33c
[  291.898085][ T7842] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  291.898107][ T7842] RSP: 002b:00007fd242673030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  291.898132][ T7842] RAX: ffffffffffffffda RBX: 00007fd2419b5fa0 RCX: 00007fd24178d33c
[  291.898149][ T7842] RDX: 000000000000000f RSI: 00007fd2426730a0 RDI: 0000000000000005
[  291.898164][ T7842] RBP: 00007fd242673090 R08: 0000000000000000 R09: 0000000000000000
[  291.898178][ T7842] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  291.898192][ T7842] R13: 0000000000000000 R14: 00007fd2419b5fa0 R15: 00007ffeb781b388
[  291.898227][ T7842]  </TASK>
[  291.908983][ T7848] FAULT_INJECTION: forcing a failure.
[  291.908983][ T7848] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  291.924343][ T7846] FAULT_INJECTION: forcing a failure.
[  291.924343][ T7846] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  291.999195][ T7848] CPU: 0 UID: 0 PID: 7848 Comm: syz.4.741 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  291.999234][ T7848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  291.999250][ T7848] Call Trace:
[  291.999262][ T7848]  <TASK>
[  291.999272][ T7848]  dump_stack_lvl+0x189/0x250
[  291.999316][ T7848]  ? __pfx____ratelimit+0x10/0x10
[  291.999353][ T7848]  ? __pfx_dump_stack_lvl+0x10/0x10
[  291.999397][ T7848]  ? __pfx__printk+0x10/0x10
[  291.999437][ T7848]  should_fail_ex+0x414/0x560
[  291.999487][ T7848]  _copy_to_user+0x31/0xb0
[  291.999513][ T7848]  simple_read_from_buffer+0xe1/0x170
[  291.999549][ T7848]  proc_fail_nth_read+0x1df/0x250
[  291.999585][ T7848]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.999623][ T7848]  ? rw_verify_area+0x258/0x650
[  291.999647][ T7848]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  291.999681][ T7848]  vfs_read+0x200/0x980
[  291.999713][ T7848]  ? __pfx___mutex_lock+0x10/0x10
[  291.999735][ T7848]  ? __pfx_vfs_read+0x10/0x10
[  291.999762][ T7848]  ? __fget_files+0x2a/0x420
[  291.999799][ T7848]  ? __fget_files+0x3a0/0x420
[  291.999827][ T7848]  ? __fget_files+0x2a/0x420
[  291.999868][ T7848]  ksys_read+0x145/0x250
[  291.999898][ T7848]  ? __pfx_ksys_read+0x10/0x10
[  291.999924][ T7848]  ? rcu_is_watching+0x15/0xb0
[  291.999958][ T7848]  ? trace_sys_enter+0x25/0x120
[  291.999994][ T7848]  do_syscall_64+0xfa/0x3b0
[  292.000013][ T7848]  ? lockdep_hardirqs_on+0x9c/0x150
[  292.000046][ T7848]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  292.000069][ T7848]  ? clear_bhb_loop+0x60/0xb0
[  292.000096][ T7848]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  292.000119][ T7848] RIP: 0033:0x7f051f98d33c
[  292.000140][ T7848] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  292.000161][ T7848] RSP: 002b:00007f052074c030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  292.000185][ T7848] RAX: ffffffffffffffda RBX: 00007f051fbb5fa0 RCX: 00007f051f98d33c
[  292.000203][ T7848] RDX: 000000000000000f RSI: 00007f052074c0a0 RDI: 0000000000000005
[  292.000218][ T7848] RBP: 00007f052074c090 R08: 0000000000000000 R09: 0000000000000000
[  292.000236][ T7848] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  292.000249][ T7848] R13: 0000000000000000 R14: 00007f051fbb5fa0 R15: 00007ffc1cfc12c8
[  292.000286][ T7848]  </TASK>
[  292.020088][ T7845] CPU: 0 UID: 0 PID: 7845 Comm: syz.3.739 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  292.020119][ T7845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  292.020133][ T7845] Call Trace:
[  292.020142][ T7845]  <TASK>
[  292.020152][ T7845]  dump_stack_lvl+0x189/0x250
[  292.020188][ T7845]  ? __pfx____ratelimit+0x10/0x10
[  292.020221][ T7845]  ? __pfx_dump_stack_lvl+0x10/0x10
[  292.020253][ T7845]  ? __pfx__printk+0x10/0x10
[  292.020289][ T7845]  should_fail_ex+0x414/0x560
[  292.020322][ T7845]  _copy_to_user+0x31/0xb0
[  292.020346][ T7845]  simple_read_from_buffer+0xe1/0x170
[  292.020390][ T7845]  proc_fail_nth_read+0x1df/0x250
[  292.020426][ T7845]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  292.020461][ T7845]  ? rw_verify_area+0x258/0x650
[  292.020484][ T7845]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  292.020527][ T7845]  vfs_read+0x200/0x980
[  292.020554][ T7845]  ? __pfx___mutex_lock+0x10/0x10
[  292.020573][ T7845]  ? __pfx_vfs_read+0x10/0x10
[  292.020598][ T7845]  ? __fget_files+0x2a/0x420
[  292.020629][ T7845]  ? __fget_files+0x3a0/0x420
[  292.020654][ T7845]  ? __fget_files+0x2a/0x420
[  292.020690][ T7845]  ksys_read+0x145/0x250
[  292.020714][ T7845]  ? __pfx_ksys_read+0x10/0x10
[  292.020738][ T7845]  ? rcu_is_watching+0x15/0xb0
[  292.020774][ T7845]  ? trace_sys_enter+0x25/0x120
[  292.020818][ T7845]  do_syscall_64+0xfa/0x3b0
[  292.020837][ T7845]  ? lockdep_hardirqs_on+0x9c/0x150
[  292.020872][ T7845]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  292.020894][ T7845]  ? clear_bhb_loop+0x60/0xb0
[  292.020923][ T7845]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  292.020945][ T7845] RIP: 0033:0x7fd61ff8d33c
[  292.020966][ T7845] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  292.020986][ T7845] RSP: 002b:00007fd620da8030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  292.021010][ T7845] RAX: ffffffffffffffda RBX: 00007fd6201b5fa0 RCX: 00007fd61ff8d33c
[  292.021027][ T7845] RDX: 000000000000000f RSI: 00007fd620da80a0 RDI: 0000000000000005
[  292.021042][ T7845] RBP: 00007fd620da8090 R08: 0000000000000000 R09: 0000000000000000
[  292.021056][ T7845] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  292.021071][ T7845] R13: 0000000000000000 R14: 00007fd6201b5fa0 R15: 00007ffcd0239938
[  292.021111][ T7845]  </TASK>
[  292.744415][ T7856] FAULT_INJECTION: forcing a failure.
[  292.744415][ T7856] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  292.754001][ T7855] FAULT_INJECTION: forcing a failure.
[  292.754001][ T7855] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  292.760917][ T7846] CPU: 0 UID: 0 PID: 7846 Comm: syz.2.738 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  292.760951][ T7846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  292.760967][ T7846] Call Trace:
[  292.760980][ T7846]  <TASK>
[  292.760990][ T7846]  dump_stack_lvl+0x189/0x250
[  292.761035][ T7846]  ? __pfx____ratelimit+0x10/0x10
[  292.761072][ T7846]  ? __pfx_dump_stack_lvl+0x10/0x10
[  292.761110][ T7846]  ? __pfx__printk+0x10/0x10
[  292.761150][ T7846]  should_fail_ex+0x414/0x560
[  292.761188][ T7846]  _copy_to_user+0x31/0xb0
[  292.761215][ T7846]  simple_read_from_buffer+0xe1/0x170
[  292.761266][ T7846]  proc_fail_nth_read+0x1df/0x250
[  292.761302][ T7846]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  292.761339][ T7846]  ? rw_verify_area+0x258/0x650
[  292.761378][ T7846]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  292.761416][ T7846]  vfs_read+0x200/0x980
[  292.761449][ T7846]  ? __pfx___mutex_lock+0x10/0x10
[  292.761473][ T7846]  ? __pfx_vfs_read+0x10/0x10
[  292.761503][ T7846]  ? __fget_files+0x2a/0x420
[  292.761542][ T7846]  ? __fget_files+0x3a0/0x420
[  292.761573][ T7846]  ? __fget_files+0x2a/0x420
[  292.761625][ T7846]  ksys_read+0x145/0x250
[  292.761657][ T7846]  ? __pfx_ksys_read+0x10/0x10
[  292.761684][ T7846]  ? rcu_is_watching+0x15/0xb0
[  292.761721][ T7846]  ? trace_sys_enter+0x25/0x120
[  292.761761][ T7846]  do_syscall_64+0xfa/0x3b0
[  292.761782][ T7846]  ? lockdep_hardirqs_on+0x9c/0x150
[  292.761817][ T7846]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  292.761842][ T7846]  ? clear_bhb_loop+0x60/0xb0
[  292.761872][ T7846]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  292.761896][ T7846] RIP: 0033:0x7fb686f8d33c
[  292.761918][ T7846] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  292.761941][ T7846] RSP: 002b:00007fb6861fe030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  292.761967][ T7846] RAX: ffffffffffffffda RBX: 00007fb6871b5fa0 RCX: 00007fb686f8d33c
[  292.761986][ T7846] RDX: 000000000000000f RSI: 00007fb6861fe0a0 RDI: 0000000000000005
[  292.762002][ T7846] RBP: 00007fb6861fe090 R08: 0000000000000000 R09: 0000000000000000
[  292.762017][ T7846] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  292.762032][ T7846] R13: 0000000000000000 R14: 00007fb6871b5fa0 R15: 00007ffdd6620bb8
[  292.762072][ T7846]  </TASK>
[  292.768317][ T7857] FAULT_INJECTION: forcing a failure.
[  292.768317][ T7857] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  292.790575][ T7855] CPU: 1 UID: 0 PID: 7855 Comm: syz.3.743 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  292.790612][ T7855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  292.790626][ T7855] Call Trace:
[  292.790638][ T7855]  <TASK>
[  292.790649][ T7855]  dump_stack_lvl+0x189/0x250
[  292.790692][ T7855]  ? __pfx____ratelimit+0x10/0x10
[  292.790729][ T7855]  ? __pfx_dump_stack_lvl+0x10/0x10
[  292.790765][ T7855]  ? __pfx__printk+0x10/0x10
[  292.790811][ T7855]  should_fail_ex+0x414/0x560
[  292.790849][ T7855]  _copy_to_user+0x31/0xb0
[  292.790876][ T7855]  simple_read_from_buffer+0xe1/0x170
[  292.790914][ T7855]  proc_fail_nth_read+0x1df/0x250
[  292.790954][ T7855]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  292.790993][ T7855]  ? rw_verify_area+0x258/0x650
[  292.791019][ T7855]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  292.791064][ T7855]  vfs_read+0x200/0x980
[  292.791099][ T7855]  ? __pfx___mutex_lock+0x10/0x10
[  292.791123][ T7855]  ? __pfx_vfs_read+0x10/0x10
[  292.791154][ T7855]  ? __fget_files+0x2a/0x420
[  292.791192][ T7855]  ? __fget_files+0x3a0/0x420
[  292.791224][ T7855]  ? __fget_files+0x2a/0x420
[  292.791268][ T7855]  ksys_read+0x145/0x250
[  292.791299][ T7855]  ? __pfx_ksys_read+0x10/0x10
[  292.791355][ T7855]  ? rcu_is_watching+0x15/0xb0
[  292.791392][ T7855]  ? trace_sys_enter+0x25/0x120
[  292.791433][ T7855]  do_syscall_64+0xfa/0x3b0
[  292.791455][ T7855]  ? lockdep_hardirqs_on+0x9c/0x150
[  292.791490][ T7855]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  292.791517][ T7855]  ? clear_bhb_loop+0x60/0xb0
[  292.791548][ T7855]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  292.791571][ T7855] RIP: 0033:0x7fd61ff8d33c
[  292.791593][ T7855] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  292.791616][ T7855] RSP: 002b:00007fd620d87030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  292.791642][ T7855] RAX: ffffffffffffffda RBX: 00007fd6201b6080 RCX: 00007fd61ff8d33c
[  292.791661][ T7855] RDX: 000000000000000f RSI: 00007fd620d870a0 RDI: 0000000000000005
[  292.791677][ T7855] RBP: 00007fd620d87090 R08: 0000000000000000 R09: 0000000000000000
[  292.791689][ T7855] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  292.791705][ T7855] R13: 0000000000000001 R14: 00007fd6201b6080 R15: 00007ffcd0239938
[  292.791744][ T7855]  </TASK>
[  292.814402][ T7856] CPU: 1 UID: 0 PID: 7856 Comm: syz.1.740 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  292.814433][ T7856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  292.814447][ T7856] Call Trace:
[  292.814458][ T7856]  <TASK>
[  292.814469][ T7856]  dump_stack_lvl+0x189/0x250
[  292.814515][ T7856]  ? __pfx____ratelimit+0x10/0x10
[  292.814553][ T7856]  ? __pfx_dump_stack_lvl+0x10/0x10
[  292.814589][ T7856]  ? __pfx__printk+0x10/0x10
[  292.814630][ T7856]  should_fail_ex+0x414/0x560
[  292.814668][ T7856]  _copy_to_user+0x31/0xb0
[  292.814697][ T7856]  simple_read_from_buffer+0xe1/0x170
[  292.814735][ T7856]  proc_fail_nth_read+0x1df/0x250
[  292.814773][ T7856]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  292.814814][ T7856]  ? rw_verify_area+0x258/0x650
[  292.814840][ T7856]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  292.814877][ T7856]  vfs_read+0x200/0x980
[  292.814911][ T7856]  ? __pfx___mutex_lock+0x10/0x10
[  292.814935][ T7856]  ? __pfx_vfs_read+0x10/0x10
[  292.814964][ T7856]  ? __fget_files+0x2a/0x420
[  292.815002][ T7856]  ? __fget_files+0x3a0/0x420
[  292.815033][ T7856]  ? __fget_files+0x2a/0x420
[  292.815087][ T7856]  ksys_read+0x145/0x250
[  292.815115][ T7856]  ? __pfx_ksys_read+0x10/0x10
[  292.815141][ T7856]  ? rcu_is_watching+0x15/0xb0
[  292.815195][ T7856]  ? trace_sys_enter+0x25/0x120
[  292.815233][ T7856]  do_syscall_64+0xfa/0x3b0
[  292.815254][ T7856]  ? lockdep_hardirqs_on+0x9c/0x150
[  292.815289][ T7856]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  292.815315][ T7856]  ? clear_bhb_loop+0x60/0xb0
[  292.815355][ T7856]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  292.815380][ T7856] RIP: 0033:0x7f5cadb8d33c
[  292.815401][ T7856] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
[  292.815424][ T7856] RSP: 002b:00007f5cae930030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  292.815450][ T7856] RAX: ffffffffffffffda RBX: 00007f5caddb6080 RCX: 00007f5cadb8d33c
[  292.815469][ T7856] RDX: 000000000000000f RSI: 00007f5cae9300a0 RDI: 0000000000000005
[  292.815485][ T7856] RBP: 00007f5cae930090 R08: 0000000000000000 R09: 0000000000000000
[  292.815500][ T7856] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  292.815515][ T7856] R13: 0000000000000001 R14: 00007f5caddb6080 R15: 00007ffdb22ecb98
[  292.815555][ T7856]  </TASK>
[  293.014336][    C1] Oops: int3: 0000 [#1] SMP KASAN PTI
[  293.014369][    C1] CPU: 1 UID: 0 PID: 5932 Comm: syz-executor Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
[  293.014398][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  293.014414][    C1] RIP: 0010:syscall_exit_work+0x180/0x1d0
[  293.014453][    C1] Code: 00 00 45 31 c0 45 31 c9 41 55 e8 0b 27 f3 ff 48 83 c4 08 48 8b 05 20 40 df 0d 48 85 c0 74 0f 48 8b 78 08 4c 89 f6 4c 89 e2 cc <3c> f9 ff ff 48 c7 c7 80 ef 13 8e 4c 89 ee e8 0d 38 f3 ff 8b 8b a0
[  293.014476][    C1] RSP: 0018:ffffc90003d0fec0 EFLAGS: 00000282
[  293.014497][    C1] RAX: ffff888034cfc510 RBX: ffff8880269bda00 RCX: 8f00acc4a74a2e00
[  293.014517][    C1] RDX: 0000000000000000 RSI: ffffc90003d0ff58 RDI: ffff88805da14400
[  293.014535][    C1] RBP: ffffc90003d0ff48 R08: 0000000000000000 R09: ffffffff81aafc58
[  293.014553][    C1] R10: dffffc0000000000 R11: fffffbfff1f3fc3f R12: 0000000000000000
[  293.014568][    C1] R13: ffffffff81aafc58 R14: ffffc90003d0ff58 R15: 0000000000000002
[  293.014587][    C1] FS:  0000555562d7b500(0000) GS:ffff888125d86000(0000) knlGS:0000000000000000
[  293.014608][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  293.014623][    C1] CR2: 00007f5cadd7e2d8 CR3: 00000000311b0000 CR4: 00000000003526f0
[  293.014646][    C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  293.014662][    C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  293.014677][    C1] Call Trace:
[  293.014686][    C1]  <TASK>
[  293.014700][    C1]  do_syscall_64+0x2ad/0x3b0
[  293.014722][    C1]  ? lockdep_hardirqs_on+0x9c/0x150
[  293.014757][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  293.014782][    C1]  ? clear_bhb_loop+0x60/0xb0
[  293.014809][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  293.014832][    C1] RIP: 0033:0x7fd2417c11e5
[  293.014853][    C1] Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 f6 54 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 4f 55 ff ff 48 8b 04 24 48 83 c4 28 f7 d8
[  293.014874][    C1] RSP: 002b:00007ffeb781b6a0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
[  293.014899][    C1] RAX: 0000000000000000 RBX: 000000000000015d RCX: 00007fd2417c11e5
[  293.014914][    C1] RDX: 00007ffeb781b6e0 RSI: 0000000000000000 RDI: 0000000000000000
[  293.014930][    C1] RBP: 00007ffeb781b74c R08: 0000000000000000 R09: 0000000000000000
[  293.014945][    C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000001388
[  293.014960][    C1] R13: 00000000000927c0 R14: 0000000000047549 R15: 00007ffeb781b7a0
[  293.014987][    C1]  </TASK>
[  293.014996][    C1] Modules linked in:
[  293.015022][    C1] ---[ end trace 0000000000000000 ]---
[  293.015039][    C1] RIP: 0010:syscall_exit_work+0x180/0x1d0
[  293.015069][    C1] Code: 00 00 45 31 c0 45 31 c9 41 55 e8 0b 27 f3 ff 48 83 c4 08 48 8b 05 20 40 df 0d 48 85 c0 74 0f 48 8b 78 08 4c 89 f6 4c 89 e2 cc <3c> f9 ff ff 48 c7 c7 80 ef 13 8e 4c 89 ee e8 0d 38 f3 ff 8b 8b a0
[  293.015089][    C1] RSP: 0018:ffffc90003d0fec0 EFLAGS: 00000282
[  293.015108][    C1] RAX: ffff888034cfc510 RBX: ffff8880269bda00 RCX: 8f00acc4a74a2e00
[  293.015126][    C1] RDX: 0000000000000000 RSI: ffffc90003d0ff58 RDI: ffff88805da14400
[  293.015143][    C1] RBP: ffffc90003d0ff48 R08: 0000000000000000 R09: ffffffff81aafc58
[  293.015160][    C1] R10: dffffc0000000000 R11: fffffbfff1f3fc3f R12: 0000000000000000
[  293.015177][    C1] R13: ffffffff81aafc58 R14: ffffc90003d0ff58 R15: 0000000000000002
[  293.015194][    C1] FS:  0000555562d7b500(0000) GS:ffff888125d86000(0000) knlGS:0000000000000000
[  293.015214][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  293.015231][    C1] CR2: 00007f5cadd7e2d8 CR3: 00000000311b0000 CR4: 00000000003526f0
[  293.015251][    C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  293.015266][    C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  293.015300][    C1] Kernel panic - not syncing: Fatal exception in interrupt
[  293.019213][    C1] Kernel Offset: disabled