64.805339][ T6552] 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
[  564.805348][ T6552] RSP: 002b:00007fb6123e5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  564.805361][ T6552] RAX: ffffffffffffffda RBX: 00007fb6117a5fa0 RCX: 00007fb61158bb7c
[  564.805391][ T6552] RDX: 000000000000000f RSI: 00007fb6123e50a0 RDI: 0000000000000005
[  564.805398][ T6552] RBP: 00007fb6123e5090 R08: 0000000000000000 R09: 0000000000000000
[  564.805405][ T6552] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  564.805411][ T6552] R13: 0000000000000000 R14: 00007fb6117a5fa0 R15: 00007ffef7fc2b28
[  564.805427][ T6552]  </TASK>
[  564.806528][ T6550] FAULT_INJECTION: forcing a failure.
[  564.806528][ T6550] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  564.806546][ T6550] CPU: 0 UID: 0 PID: 6550 Comm: syz.1.418 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  564.806557][ T6550] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  564.806562][ T6550] Call Trace:
[  564.806565][ T6550]  <TASK>
[  564.806568][ T6550]  dump_stack_lvl+0x241/0x360
[  564.806579][ T6550]  ? __pfx_dump_stack_lvl+0x10/0x10
[  564.806587][ T6550]  ? __pfx__printk+0x10/0x10
[  564.806595][ T6550]  ? snprintf+0xda/0x120
[  564.806608][ T6550]  should_fail_ex+0x40a/0x550
[  564.806626][ T6550]  _copy_to_user+0x31/0xb0
[  564.806641][ T6550]  simple_read_from_buffer+0xca/0x150
[  564.806657][ T6550]  proc_fail_nth_read+0x1e9/0x250
[  564.806673][ T6550]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  564.806688][ T6550]  ? rw_verify_area+0x243/0x630
[  564.806698][ T6550]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  564.806713][ T6550]  vfs_read+0x1f8/0xb40
[  564.806723][ T6550]  ? fdget_pos+0x254/0x320
[  564.806739][ T6550]  ? __pfx___mutex_lock+0x10/0x10
[  564.806755][ T6550]  ? __pfx_vfs_read+0x10/0x10
[  564.806764][ T6550]  ? do_sys_openat2+0x17a/0x1d0
[  564.806780][ T6550]  ? __fget_files+0x2a/0x410
[  564.806793][ T6550]  ? __fget_files+0x395/0x410
[  564.806806][ T6550]  ? __fget_files+0x2a/0x410
[  564.806825][ T6550]  ksys_read+0x18f/0x2b0
[  564.806837][ T6550]  ? __pfx_ksys_read+0x10/0x10
[  564.806848][ T6550]  ? do_syscall_64+0x100/0x230
[  564.806860][ T6550]  ? do_syscall_64+0xb6/0x230
[  564.806872][ T6550]  do_syscall_64+0xf3/0x230
[  564.806882][ T6550]  ? clear_bhb_loop+0x35/0x90
[  564.806898][ T6550]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  564.806912][ T6550] RIP: 0033:0x7f3ec898bb7c
[  564.806918][ T6550] 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
[  564.806925][ T6550] RSP: 002b:00007f3ec9749030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  564.806933][ T6550] RAX: ffffffffffffffda RBX: 00007f3ec8ba5fa0 RCX: 00007f3ec898bb7c
[  564.806938][ T6550] RDX: 000000000000000f RSI: 00007f3ec97490a0 RDI: 0000000000000005
[  564.806942][ T6550] RBP: 00007f3ec9749090 R08: 0000000000000000 R09: 0000000000000000
[  564.806947][ T6550] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  564.806951][ T6550] R13: 0000000000000000 R14: 00007f3ec8ba5fa0 R15: 00007ffc7e63dd68
[  564.806961][ T6550]  </TASK>
[  565.866188][ T6554] FAULT_INJECTION: forcing a failure.
[  565.866188][ T6554] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  565.866216][ T6554] CPU: 0 UID: 0 PID: 6554 Comm: syz.6.420 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  565.866230][ T6554] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  565.866237][ T6554] Call Trace:
[  565.866241][ T6554]  <TASK>
[  565.866246][ T6554]  dump_stack_lvl+0x241/0x360
[  565.866268][ T6554]  ? __pfx_dump_stack_lvl+0x10/0x10
[  565.866281][ T6554]  ? __pfx__printk+0x10/0x10
[  565.866296][ T6554]  ? snprintf+0xda/0x120
[  565.866311][ T6554]  should_fail_ex+0x40a/0x550
[  565.866331][ T6554]  _copy_to_user+0x31/0xb0
[  565.866348][ T6554]  simple_read_from_buffer+0xca/0x150
[  565.866366][ T6554]  proc_fail_nth_read+0x1e9/0x250
[  565.866383][ T6554]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  565.866399][ T6554]  ? rw_verify_area+0x243/0x630
[  565.866410][ T6554]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  565.866426][ T6554]  vfs_read+0x1f8/0xb40
[  565.866438][ T6554]  ? fdget_pos+0x254/0x320
[  565.866456][ T6554]  ? __pfx___mutex_lock+0x10/0x10
[  565.866473][ T6554]  ? __pfx_vfs_read+0x10/0x10
[  565.866483][ T6554]  ? do_sys_openat2+0x17a/0x1d0
[  565.866500][ T6554]  ? __fget_files+0x2a/0x410
[  565.866515][ T6554]  ? __fget_files+0x395/0x410
[  565.866530][ T6554]  ? __fget_files+0x2a/0x410
[  565.866550][ T6554]  ksys_read+0x18f/0x2b0
[  565.866562][ T6554]  ? __pfx_ksys_read+0x10/0x10
[  565.866574][ T6554]  ? do_syscall_64+0x100/0x230
[  565.866587][ T6554]  ? do_syscall_64+0xb6/0x230
[  565.866601][ T6554]  do_syscall_64+0xf3/0x230
[  565.866612][ T6554]  ? clear_bhb_loop+0x35/0x90
[  565.866630][ T6554]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  565.866644][ T6554] RIP: 0033:0x7fe53838bb7c
[  565.866656][ T6554] 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
[  565.866667][ T6554] RSP: 002b:00007fe5392c0030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  565.866680][ T6554] RAX: ffffffffffffffda RBX: 00007fe5385a5fa0 RCX: 00007fe53838bb7c
[  565.866688][ T6554] RDX: 000000000000000f RSI: 00007fe5392c00a0 RDI: 0000000000000005
[  565.866695][ T6554] RBP: 00007fe5392c0090 R08: 0000000000000000 R09: 0000000000000000
[  565.866701][ T6554] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  565.866707][ T6554] R13: 0000000000000000 R14: 00007fe5385a5fa0 R15: 00007fff4c5dba98
[  565.866723][ T6554]  </TASK>
[  565.958551][ T6556] FAULT_INJECTION: forcing a failure.
[  565.958551][ T6556] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  565.958571][ T6556] CPU: 0 UID: 0 PID: 6556 Comm: syz.5.421 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  565.958579][ T6556] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  565.958584][ T6556] Call Trace:
[  565.958587][ T6556]  <TASK>
[  565.958591][ T6556]  dump_stack_lvl+0x241/0x360
[  565.958604][ T6556]  ? __pfx_dump_stack_lvl+0x10/0x10
[  565.958612][ T6556]  ? __pfx__printk+0x10/0x10
[  565.958621][ T6556]  ? snprintf+0xda/0x120
[  565.958631][ T6556]  should_fail_ex+0x40a/0x550
[  565.958643][ T6556]  _copy_to_user+0x31/0xb0
[  565.958654][ T6556]  simple_read_from_buffer+0xca/0x150
[  565.958665][ T6556]  proc_fail_nth_read+0x1e9/0x250
[  565.958676][ T6556]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  565.958687][ T6556]  ? rw_verify_area+0x243/0x630
[  565.958694][ T6556]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  565.958705][ T6556]  vfs_read+0x1f8/0xb40
[  565.958716][ T6556]  ? fdget_pos+0x254/0x320
[  565.958732][ T6556]  ? __pfx___mutex_lock+0x10/0x10
[  565.958748][ T6556]  ? __pfx_vfs_read+0x10/0x10
[  565.958756][ T6556]  ? do_sys_openat2+0x17a/0x1d0
[  565.958772][ T6556]  ? __fget_files+0x2a/0x410
[  565.958787][ T6556]  ? __fget_files+0x395/0x410
[  565.958800][ T6556]  ? __fget_files+0x2a/0x410
[  565.958819][ T6556]  ksys_read+0x18f/0x2b0
[  565.958831][ T6556]  ? __pfx_ksys_read+0x10/0x10
[  565.958842][ T6556]  ? do_syscall_64+0x100/0x230
[  565.958854][ T6556]  ? do_syscall_64+0xb6/0x230
[  565.958866][ T6556]  do_syscall_64+0xf3/0x230
[  565.958876][ T6556]  ? clear_bhb_loop+0x35/0x90
[  565.958891][ T6556]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  565.958905][ T6556] RIP: 0033:0x7f12abd8bb7c
[  565.958915][ T6556] 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
[  565.958925][ T6556] RSP: 002b:00007f12acc94030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  565.958938][ T6556] RAX: ffffffffffffffda RBX: 00007f12abfa5fa0 RCX: 00007f12abd8bb7c
[  565.958946][ T6556] RDX: 000000000000000f RSI: 00007f12acc940a0 RDI: 0000000000000005
[  565.958952][ T6556] RBP: 00007f12acc94090 R08: 0000000000000000 R09: 0000000000000000
[  565.958959][ T6556] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  565.958965][ T6556] R13: 0000000000000000 R14: 00007f12abfa5fa0 R15: 00007ffefc4051c8
[  565.958982][ T6556]  </TASK>
[  566.393047][ T6558] FAULT_INJECTION: forcing a failure.
[  566.393047][ T6558] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  566.393073][ T6558] CPU: 0 UID: 0 PID: 6558 Comm: syz.2.422 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  566.393086][ T6558] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  566.393093][ T6558] Call Trace:
[  566.393097][ T6558]  <TASK>
[  566.393102][ T6558]  dump_stack_lvl+0x241/0x360
[  566.393118][ T6558]  ? __pfx_dump_stack_lvl+0x10/0x10
[  566.393128][ T6558]  ? __pfx__printk+0x10/0x10
[  566.393142][ T6558]  ? snprintf+0xda/0x120
[  566.393156][ T6558]  should_fail_ex+0x40a/0x550
[  566.393173][ T6558]  _copy_to_user+0x31/0xb0
[  566.393187][ T6558]  simple_read_from_buffer+0xca/0x150
[  566.393201][ T6558]  proc_fail_nth_read+0x1e9/0x250
[  566.393217][ T6558]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  566.393232][ T6558]  ? rw_verify_area+0x243/0x630
[  566.393243][ T6558]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  566.393256][ T6558]  vfs_read+0x1f8/0xb40
[  566.393267][ T6558]  ? fdget_pos+0x254/0x320
[  566.393282][ T6558]  ? __pfx___mutex_lock+0x10/0x10
[  566.393297][ T6558]  ? __pfx_vfs_read+0x10/0x10
[  566.393305][ T6558]  ? do_sys_openat2+0x17a/0x1d0
[  566.393321][ T6558]  ? __fget_files+0x2a/0x410
[  566.393336][ T6558]  ? __fget_files+0x395/0x410
[  566.393349][ T6558]  ? __fget_files+0x2a/0x410
[  566.393366][ T6558]  ksys_read+0x18f/0x2b0
[  566.393379][ T6558]  ? __pfx_ksys_read+0x10/0x10
[  566.393389][ T6558]  ? do_syscall_64+0x100/0x230
[  566.393400][ T6558]  ? do_syscall_64+0xb6/0x230
[  566.393412][ T6558]  do_syscall_64+0xf3/0x230
[  566.393422][ T6558]  ? clear_bhb_loop+0x35/0x90
[  566.393439][ T6558]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  566.393455][ T6558] RIP: 0033:0x7f7f4038bb7c
[  566.393467][ T6558] 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
[  566.393476][ T6558] RSP: 002b:00007f7f41145030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  566.393491][ T6558] RAX: ffffffffffffffda RBX: 00007f7f405a5fa0 RCX: 00007f7f4038bb7c
[  566.393499][ T6558] RDX: 000000000000000f RSI: 00007f7f411450a0 RDI: 0000000000000005
[  566.393506][ T6558] RBP: 00007f7f41145090 R08: 0000000000000000 R09: 0000000000000000
[  566.393513][ T6558] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  566.393520][ T6558] R13: 0000000000000000 R14: 00007f7f405a5fa0 R15: 00007fff34abd738
[  566.393538][ T6558]  </TASK>
[  566.514271][ T6560] FAULT_INJECTION: forcing a failure.
[  566.514271][ T6560] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  566.514305][ T6560] CPU: 0 UID: 0 PID: 6560 Comm: syz.3.423 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  566.514317][ T6560] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  566.514325][ T6560] Call Trace:
[  566.514329][ T6560]  <TASK>
[  566.514333][ T6560]  dump_stack_lvl+0x241/0x360
[  566.514351][ T6560]  ? __pfx_dump_stack_lvl+0x10/0x10
[  566.514363][ T6560]  ? __pfx__printk+0x10/0x10
[  566.514377][ T6560]  ? snprintf+0xda/0x120
[  566.514391][ T6560]  should_fail_ex+0x40a/0x550
[  566.514408][ T6560]  _copy_to_user+0x31/0xb0
[  566.514425][ T6560]  simple_read_from_buffer+0xca/0x150
[  566.514441][ T6560]  proc_fail_nth_read+0x1e9/0x250
[  566.514458][ T6560]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  566.514474][ T6560]  ? rw_verify_area+0x243/0x630
[  566.514484][ T6560]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  566.514496][ T6560]  vfs_read+0x1f8/0xb40
[  566.514503][ T6560]  ? fdget_pos+0x254/0x320
[  566.514517][ T6560]  ? __pfx___mutex_lock+0x10/0x10
[  566.514532][ T6560]  ? __pfx_vfs_read+0x10/0x10
[  566.514540][ T6560]  ? do_sys_openat2+0x17a/0x1d0
[  566.514556][ T6560]  ? __fget_files+0x2a/0x410
[  566.514571][ T6560]  ? __fget_files+0x395/0x410
[  566.514583][ T6560]  ? __fget_files+0x2a/0x410
[  566.514600][ T6560]  ksys_read+0x18f/0x2b0
[  566.514612][ T6560]  ? __pfx_ksys_read+0x10/0x10
[  566.514623][ T6560]  ? do_syscall_64+0x100/0x230
[  566.514635][ T6560]  ? do_syscall_64+0xb6/0x230
[  566.514647][ T6560]  do_syscall_64+0xf3/0x230
[  566.514655][ T6560]  ? clear_bhb_loop+0x35/0x90
[  566.514671][ T6560]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  566.514684][ T6560] RIP: 0033:0x7fa97398bb7c
[  566.514695][ T6560] 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
[  566.514705][ T6560] RSP: 002b:00007fa9747b5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  566.514718][ T6560] RAX: ffffffffffffffda RBX: 00007fa973ba5fa0 RCX: 00007fa97398bb7c
[  566.514726][ T6560] RDX: 000000000000000f RSI: 00007fa9747b50a0 RDI: 0000000000000005
[  566.514733][ T6560] RBP: 00007fa9747b5090 R08: 0000000000000000 R09: 0000000000000000
[  566.514740][ T6560] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  566.514746][ T6560] R13: 0000000000000000 R14: 00007fa973ba5fa0 R15: 00007ffe19e290f8
[  566.514756][ T6560]  </TASK>
[  566.763554][ T6564] FAULT_INJECTION: forcing a failure.
[  566.763554][ T6564] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  566.763579][ T6564] CPU: 0 UID: 0 PID: 6564 Comm: syz.1.425 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  566.763591][ T6564] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  566.763598][ T6564] Call Trace:
[  566.763602][ T6564]  <TASK>
[  566.763608][ T6564]  dump_stack_lvl+0x241/0x360
[  566.763627][ T6564]  ? __pfx_dump_stack_lvl+0x10/0x10
[  566.763639][ T6564]  ? __pfx__printk+0x10/0x10
[  566.763654][ T6564]  ? snprintf+0xda/0x120
[  566.763669][ T6564]  should_fail_ex+0x40a/0x550
[  566.763688][ T6564]  _copy_to_user+0x31/0xb0
[  566.763703][ T6564]  simple_read_from_buffer+0xca/0x150
[  566.763720][ T6564]  proc_fail_nth_read+0x1e9/0x250
[  566.763736][ T6564]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  566.763753][ T6564]  ? rw_verify_area+0x243/0x630
[  566.763763][ T6564]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  566.763777][ T6564]  vfs_read+0x1f8/0xb40
[  566.763790][ T6564]  ? fdget_pos+0x254/0x320
[  566.763805][ T6564]  ? __pfx___mutex_lock+0x10/0x10
[  566.763821][ T6564]  ? __pfx_vfs_read+0x10/0x10
[  566.763829][ T6564]  ? do_sys_openat2+0x17a/0x1d0
[  566.763846][ T6564]  ? __fget_files+0x2a/0x410
[  566.763861][ T6564]  ? __fget_files+0x395/0x410
[  566.763874][ T6564]  ? __fget_files+0x2a/0x410
[  566.763893][ T6564]  ksys_read+0x18f/0x2b0
[  566.763905][ T6564]  ? __pfx_ksys_read+0x10/0x10
[  566.763916][ T6564]  ? do_syscall_64+0x100/0x230
[  566.763928][ T6564]  ? do_syscall_64+0xb6/0x230
[  566.763940][ T6564]  do_syscall_64+0xf3/0x230
[  566.763949][ T6564]  ? clear_bhb_loop+0x35/0x90
[  566.763966][ T6564]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  566.763981][ T6564] RIP: 0033:0x7f3ec898bb7c
[  566.763992][ T6564] 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
[  566.764001][ T6564] RSP: 002b:00007f3ec9749030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  566.764014][ T6564] RAX: ffffffffffffffda RBX: 00007f3ec8ba5fa0 RCX: 00007f3ec898bb7c
[  566.764022][ T6564] RDX: 000000000000000f RSI: 00007f3ec97490a0 RDI: 0000000000000005
[  566.764028][ T6564] RBP: 00007f3ec9749090 R08: 0000000000000000 R09: 0000000000000000
[  566.764034][ T6564] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  566.764041][ T6564] R13: 0000000000000000 R14: 00007f3ec8ba5fa0 R15: 00007ffc7e63dd68
[  566.764058][ T6564]  </TASK>
[  566.807750][ T6563] FAULT_INJECTION: forcing a failure.
[  566.807750][ T6563] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  566.807768][ T6563] CPU: 0 UID: 0 PID: 6563 Comm: syz.4.424 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  566.807777][ T6563] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  566.807782][ T6563] Call Trace:
[  566.807784][ T6563]  <TASK>
[  566.807788][ T6563]  dump_stack_lvl+0x241/0x360
[  566.807801][ T6563]  ? __pfx_dump_stack_lvl+0x10/0x10
[  566.807809][ T6563]  ? __pfx__printk+0x10/0x10
[  566.807818][ T6563]  ? snprintf+0xda/0x120
[  566.807828][ T6563]  should_fail_ex+0x40a/0x550
[  566.807840][ T6563]  _copy_to_user+0x31/0xb0
[  566.807850][ T6563]  simple_read_from_buffer+0xca/0x150
[  566.807861][ T6563]  proc_fail_nth_read+0x1e9/0x250
[  566.807872][ T6563]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  566.807883][ T6563]  ? rw_verify_area+0x243/0x630
[  566.807890][ T6563]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  566.807900][ T6563]  vfs_read+0x1f8/0xb40
[  566.807908][ T6563]  ? fdget_pos+0x254/0x320
[  566.807919][ T6563]  ? __pfx___mutex_lock+0x10/0x10
[  566.807930][ T6563]  ? __pfx_vfs_read+0x10/0x10
[  566.807936][ T6563]  ? do_sys_openat2+0x17a/0x1d0
[  566.807947][ T6563]  ? __fget_files+0x2a/0x410
[  566.807957][ T6563]  ? __fget_files+0x395/0x410
[  566.807969][ T6563]  ? __fget_files+0x2a/0x410
[  566.807986][ T6563]  ksys_read+0x18f/0x2b0
[  566.807997][ T6563]  ? __pfx_ksys_read+0x10/0x10
[  566.808006][ T6563]  ? do_syscall_64+0x100/0x230
[  566.808016][ T6563]  ? do_syscall_64+0xb6/0x230
[  566.808027][ T6563]  do_syscall_64+0xf3/0x230
[  566.808036][ T6563]  ? clear_bhb_loop+0x35/0x90
[  566.808050][ T6563]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  566.808059][ T6563] RIP: 0033:0x7fb61158bb7c
[  566.808067][ T6563] 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
[  566.808073][ T6563] RSP: 002b:00007fb6123e5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  566.808083][ T6563] RAX: ffffffffffffffda RBX: 00007fb6117a5fa0 RCX: 00007fb61158bb7c
[  566.808088][ T6563] RDX: 000000000000000f RSI: 00007fb6123e50a0 RDI: 0000000000000005
[  566.808099][ T6563] RBP: 00007fb6123e5090 R08: 0000000000000000 R09: 0000000000000000
[  566.808103][ T6563] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  566.808107][ T6563] R13: 0000000000000000 R14: 00007fb6117a5fa0 R15: 00007ffef7fc2b28
[  566.808117][ T6563]  </TASK>
[  567.878453][ T6566] FAULT_INJECTION: forcing a failure.
[  567.878453][ T6566] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  567.878479][ T6566] CPU: 0 UID: 0 PID: 6566 Comm: syz.6.426 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  567.878491][ T6566] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  567.878498][ T6566] Call Trace:
[  567.878502][ T6566]  <TASK>
[  567.878507][ T6566]  dump_stack_lvl+0x241/0x360
[  567.878527][ T6566]  ? __pfx_dump_stack_lvl+0x10/0x10
[  567.878539][ T6566]  ? __pfx__printk+0x10/0x10
[  567.878553][ T6566]  ? snprintf+0xda/0x120
[  567.878567][ T6566]  should_fail_ex+0x40a/0x550
[  567.878587][ T6566]  _copy_to_user+0x31/0xb0
[  567.878603][ T6566]  simple_read_from_buffer+0xca/0x150
[  567.878619][ T6566]  proc_fail_nth_read+0x1e9/0x250
[  567.878636][ T6566]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  567.878652][ T6566]  ? rw_verify_area+0x243/0x630
[  567.878663][ T6566]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  567.878679][ T6566]  vfs_read+0x1f8/0xb40
[  567.878691][ T6566]  ? fdget_pos+0x254/0x320
[  567.878707][ T6566]  ? __pfx___mutex_lock+0x10/0x10
[  567.878722][ T6566]  ? __pfx_vfs_read+0x10/0x10
[  567.878730][ T6566]  ? do_sys_openat2+0x17a/0x1d0
[  567.878746][ T6566]  ? __fget_files+0x2a/0x410
[  567.878759][ T6566]  ? __fget_files+0x395/0x410
[  567.878772][ T6566]  ? __fget_files+0x2a/0x410
[  567.878791][ T6566]  ksys_read+0x18f/0x2b0
[  567.878803][ T6566]  ? __pfx_ksys_read+0x10/0x10
[  567.878814][ T6566]  ? do_syscall_64+0x100/0x230
[  567.878826][ T6566]  ? do_syscall_64+0xb6/0x230
[  567.878834][ T6566]  do_syscall_64+0xf3/0x230
[  567.878843][ T6566]  ? clear_bhb_loop+0x35/0x90
[  567.878859][ T6566]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  567.878872][ T6566] RIP: 0033:0x7fe53838bb7c
[  567.878883][ T6566] 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
[  567.878892][ T6566] RSP: 002b:00007fe5392c0030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  567.878907][ T6566] RAX: ffffffffffffffda RBX: 00007fe5385a5fa0 RCX: 00007fe53838bb7c
[  567.878916][ T6566] RDX: 000000000000000f RSI: 00007fe5392c00a0 RDI: 0000000000000005
[  567.878922][ T6566] RBP: 00007fe5392c0090 R08: 0000000000000000 R09: 0000000000000000
[  567.878929][ T6566] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  567.878935][ T6566] R13: 0000000000000000 R14: 00007fe5385a5fa0 R15: 00007fff4c5dba98
[  567.878952][ T6566]  </TASK>
[  567.900412][ T1311] ieee802154 phy0 wpan0: encryption failed: -22
[  567.900513][ T1311] ieee802154 phy1 wpan1: encryption failed: -22
[  567.928673][ T6568] FAULT_INJECTION: forcing a failure.
[  567.928673][ T6568] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  567.928698][ T6568] CPU: 0 UID: 0 PID: 6568 Comm: syz.5.427 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  567.928711][ T6568] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  567.928718][ T6568] Call Trace:
[  567.928721][ T6568]  <TASK>
[  567.928726][ T6568]  dump_stack_lvl+0x241/0x360
[  567.928745][ T6568]  ? __pfx_dump_stack_lvl+0x10/0x10
[  567.928757][ T6568]  ? __pfx__printk+0x10/0x10
[  567.928772][ T6568]  ? snprintf+0xda/0x120
[  567.928786][ T6568]  should_fail_ex+0x40a/0x550
[  567.928803][ T6568]  _copy_to_user+0x31/0xb0
[  567.928819][ T6568]  simple_read_from_buffer+0xca/0x150
[  567.928835][ T6568]  proc_fail_nth_read+0x1e9/0x250
[  567.928850][ T6568]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  567.928865][ T6568]  ? rw_verify_area+0x243/0x630
[  567.928876][ T6568]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  567.928892][ T6568]  vfs_read+0x1f8/0xb40
[  567.928902][ T6568]  ? fdget_pos+0x254/0x320
[  567.928918][ T6568]  ? __pfx___mutex_lock+0x10/0x10
[  567.928934][ T6568]  ? __pfx_vfs_read+0x10/0x10
[  567.928943][ T6568]  ? do_sys_openat2+0x17a/0x1d0
[  567.928959][ T6568]  ? __fget_files+0x2a/0x410
[  567.928974][ T6568]  ? __fget_files+0x395/0x410
[  567.928986][ T6568]  ? __fget_files+0x2a/0x410
[  567.929005][ T6568]  ksys_read+0x18f/0x2b0
[  567.929017][ T6568]  ? __pfx_ksys_read+0x10/0x10
[  567.929027][ T6568]  ? do_syscall_64+0x100/0x230
[  567.929047][ T6568]  ? do_syscall_64+0xb6/0x230
[  567.929058][ T6568]  do_syscall_64+0xf3/0x230
[  567.929067][ T6568]  ? clear_bhb_loop+0x35/0x90
[  567.929083][ T6568]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  567.929097][ T6568] RIP: 0033:0x7f12abd8bb7c
[  567.929108][ T6568] 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
[  567.929117][ T6568] RSP: 002b:00007f12acc94030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  567.929130][ T6568] RAX: ffffffffffffffda RBX: 00007f12abfa5fa0 RCX: 00007f12abd8bb7c
[  567.929138][ T6568] RDX: 000000000000000f RSI: 00007f12acc940a0 RDI: 0000000000000005
[  567.929144][ T6568] RBP: 00007f12acc94090 R08: 0000000000000000 R09: 0000000000000000
[  567.929151][ T6568] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  567.929157][ T6568] R13: 0000000000000000 R14: 00007f12abfa5fa0 R15: 00007ffefc4051c8
[  567.929171][ T6568]  </TASK>
[  568.286225][ T6570] FAULT_INJECTION: forcing a failure.
[  568.286225][ T6570] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  568.286251][ T6570] CPU: 0 UID: 0 PID: 6570 Comm: syz.2.428 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  568.286264][ T6570] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  568.286270][ T6570] Call Trace:
[  568.286275][ T6570]  <TASK>
[  568.286279][ T6570]  dump_stack_lvl+0x241/0x360
[  568.286297][ T6570]  ? __pfx_dump_stack_lvl+0x10/0x10
[  568.286308][ T6570]  ? __pfx__printk+0x10/0x10
[  568.286324][ T6570]  ? snprintf+0xda/0x120
[  568.286339][ T6570]  should_fail_ex+0x40a/0x550
[  568.286357][ T6570]  _copy_to_user+0x31/0xb0
[  568.286373][ T6570]  simple_read_from_buffer+0xca/0x150
[  568.286389][ T6570]  proc_fail_nth_read+0x1e9/0x250
[  568.286405][ T6570]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  568.286421][ T6570]  ? rw_verify_area+0x243/0x630
[  568.286432][ T6570]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  568.286447][ T6570]  vfs_read+0x1f8/0xb40
[  568.286459][ T6570]  ? fdget_pos+0x254/0x320
[  568.286474][ T6570]  ? __pfx___mutex_lock+0x10/0x10
[  568.286489][ T6570]  ? __pfx_vfs_read+0x10/0x10
[  568.286498][ T6570]  ? do_sys_openat2+0x17a/0x1d0
[  568.286515][ T6570]  ? __fget_files+0x2a/0x410
[  568.286529][ T6570]  ? __fget_files+0x395/0x410
[  568.286542][ T6570]  ? __fget_files+0x2a/0x410
[  568.286561][ T6570]  ksys_read+0x18f/0x2b0
[  568.286573][ T6570]  ? __pfx_ksys_read+0x10/0x10
[  568.286584][ T6570]  ? do_syscall_64+0x100/0x230
[  568.286595][ T6570]  ? do_syscall_64+0xb6/0x230
[  568.286606][ T6570]  do_syscall_64+0xf3/0x230
[  568.286615][ T6570]  ? clear_bhb_loop+0x35/0x90
[  568.286632][ T6570]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  568.286646][ T6570] RIP: 0033:0x7f7f4038bb7c
[  568.286656][ T6570] 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
[  568.286666][ T6570] RSP: 002b:00007f7f41145030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  568.286678][ T6570] RAX: ffffffffffffffda RBX: 00007f7f405a5fa0 RCX: 00007f7f4038bb7c
[  568.286685][ T6570] RDX: 000000000000000f RSI: 00007f7f411450a0 RDI: 0000000000000005
[  568.286691][ T6570] RBP: 00007f7f41145090 R08: 0000000000000000 R09: 0000000000000000
[  568.286698][ T6570] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  568.286704][ T6570] R13: 0000000000000000 R14: 00007f7f405a5fa0 R15: 00007fff34abd738
[  568.286721][ T6570]  </TASK>
[  568.397151][ T6572] FAULT_INJECTION: forcing a failure.
[  568.397151][ T6572] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  568.397176][ T6572] CPU: 0 UID: 0 PID: 6572 Comm: syz.3.429 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  568.397188][ T6572] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  568.397195][ T6572] Call Trace:
[  568.397199][ T6572]  <TASK>
[  568.397204][ T6572]  dump_stack_lvl+0x241/0x360
[  568.397223][ T6572]  ? __pfx_dump_stack_lvl+0x10/0x10
[  568.397235][ T6572]  ? __pfx__printk+0x10/0x10
[  568.397250][ T6572]  ? snprintf+0xda/0x120
[  568.397266][ T6572]  should_fail_ex+0x40a/0x550
[  568.397307][ T6572]  _copy_to_user+0x31/0xb0
[  568.397322][ T6572]  simple_read_from_buffer+0xca/0x150
[  568.397339][ T6572]  proc_fail_nth_read+0x1e9/0x250
[  568.397356][ T6572]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  568.397371][ T6572]  ? rw_verify_area+0x243/0x630
[  568.397381][ T6572]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  568.397396][ T6572]  vfs_read+0x1f8/0xb40
[  568.397408][ T6572]  ? fdget_pos+0x254/0x320
[  568.397423][ T6572]  ? __pfx___mutex_lock+0x10/0x10
[  568.397439][ T6572]  ? __pfx_vfs_read+0x10/0x10
[  568.397447][ T6572]  ? do_sys_openat2+0x17a/0x1d0
[  568.397464][ T6572]  ? __fget_files+0x2a/0x410
[  568.397478][ T6572]  ? __fget_files+0x395/0x410
[  568.397491][ T6572]  ? __fget_files+0x2a/0x410
[  568.397509][ T6572]  ksys_read+0x18f/0x2b0
[  568.397521][ T6572]  ? __pfx_ksys_read+0x10/0x10
[  568.397532][ T6572]  ? do_syscall_64+0x100/0x230
[  568.397543][ T6572]  ? do_syscall_64+0xb6/0x230
[  568.397554][ T6572]  do_syscall_64+0xf3/0x230
[  568.397564][ T6572]  ? clear_bhb_loop+0x35/0x90
[  568.397580][ T6572]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  568.397594][ T6572] RIP: 0033:0x7fa97398bb7c
[  568.397604][ T6572] 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
[  568.397613][ T6572] RSP: 002b:00007fa9747b5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  568.397626][ T6572] RAX: ffffffffffffffda RBX: 00007fa973ba5fa0 RCX: 00007fa97398bb7c
[  568.397634][ T6572] RDX: 000000000000000f RSI: 00007fa9747b50a0 RDI: 0000000000000005
[  568.397641][ T6572] RBP: 00007fa9747b5090 R08: 0000000000000000 R09: 0000000000000000
[  568.397647][ T6572] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  568.397678][ T6572] R13: 0000000000000000 R14: 00007fa973ba5fa0 R15: 00007ffe19e290f8
[  568.397695][ T6572]  </TASK>
[  568.701869][ T6574] FAULT_INJECTION: forcing a failure.
[  568.701869][ T6574] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  568.701894][ T6574] CPU: 0 UID: 0 PID: 6574 Comm: syz.1.430 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  568.701906][ T6574] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  568.701913][ T6574] Call Trace:
[  568.701917][ T6574]  <TASK>
[  568.701921][ T6574]  dump_stack_lvl+0x241/0x360
[  568.701939][ T6574]  ? __pfx_dump_stack_lvl+0x10/0x10
[  568.701951][ T6574]  ? __pfx__printk+0x10/0x10
[  568.701965][ T6574]  ? snprintf+0xda/0x120
[  568.701979][ T6574]  should_fail_ex+0x40a/0x550
[  568.701998][ T6574]  _copy_to_user+0x31/0xb0
[  568.702013][ T6574]  simple_read_from_buffer+0xca/0x150
[  568.702030][ T6574]  proc_fail_nth_read+0x1e9/0x250
[  568.702047][ T6574]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  568.702063][ T6574]  ? rw_verify_area+0x243/0x630
[  568.702081][ T6574]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  568.702097][ T6574]  vfs_read+0x1f8/0xb40
[  568.702108][ T6574]  ? fdget_pos+0x254/0x320
[  568.702123][ T6574]  ? __pfx___mutex_lock+0x10/0x10
[  568.702139][ T6574]  ? __pfx_vfs_read+0x10/0x10
[  568.702148][ T6574]  ? do_sys_openat2+0x17a/0x1d0
[  568.702165][ T6574]  ? __fget_files+0x2a/0x410
[  568.702179][ T6574]  ? __fget_files+0x395/0x410
[  568.702193][ T6574]  ? __fget_files+0x2a/0x410
[  568.702211][ T6574]  ksys_read+0x18f/0x2b0
[  568.702224][ T6574]  ? __pfx_ksys_read+0x10/0x10
[  568.702236][ T6574]  ? do_syscall_64+0x100/0x230
[  568.702247][ T6574]  ? do_syscall_64+0xb6/0x230
[  568.702258][ T6574]  do_syscall_64+0xf3/0x230
[  568.702267][ T6574]  ? clear_bhb_loop+0x35/0x90
[  568.702284][ T6574]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  568.702299][ T6574] RIP: 0033:0x7f3ec898bb7c
[  568.702310][ T6574] 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
[  568.702319][ T6574] RSP: 002b:00007f3ec9749030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  568.702332][ T6574] RAX: ffffffffffffffda RBX: 00007f3ec8ba5fa0 RCX: 00007f3ec898bb7c
[  568.702340][ T6574] RDX: 000000000000000f RSI: 00007f3ec97490a0 RDI: 0000000000000005
[  568.702346][ T6574] RBP: 00007f3ec9749090 R08: 0000000000000000 R09: 0000000000000000
[  568.702353][ T6574] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  568.702360][ T6574] R13: 0000000000000000 R14: 00007f3ec8ba5fa0 R15: 00007ffc7e63dd68
[  568.702376][ T6574]  </TASK>
[  568.748534][ T6576] FAULT_INJECTION: forcing a failure.
[  568.748534][ T6576] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  568.748560][ T6576] CPU: 0 UID: 0 PID: 6576 Comm: syz.4.431 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  568.748572][ T6576] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  568.748579][ T6576] Call Trace:
[  568.748583][ T6576]  <TASK>
[  568.748588][ T6576]  dump_stack_lvl+0x241/0x360
[  568.748606][ T6576]  ? __pfx_dump_stack_lvl+0x10/0x10
[  568.748618][ T6576]  ? __pfx__printk+0x10/0x10
[  568.748633][ T6576]  ? snprintf+0xda/0x120
[  568.748648][ T6576]  should_fail_ex+0x40a/0x550
[  568.748667][ T6576]  _copy_to_user+0x31/0xb0
[  568.748682][ T6576]  simple_read_from_buffer+0xca/0x150
[  568.748700][ T6576]  proc_fail_nth_read+0x1e9/0x250
[  568.748716][ T6576]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  568.748732][ T6576]  ? rw_verify_area+0x243/0x630
[  568.748743][ T6576]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  568.748758][ T6576]  vfs_read+0x1f8/0xb40
[  568.748769][ T6576]  ? fdget_pos+0x254/0x320
[  568.748783][ T6576]  ? __pfx___mutex_lock+0x10/0x10
[  568.748800][ T6576]  ? __pfx_vfs_read+0x10/0x10
[  568.748808][ T6576]  ? do_sys_openat2+0x17a/0x1d0
[  568.748824][ T6576]  ? __fget_files+0x2a/0x410
[  568.748839][ T6576]  ? __fget_files+0x395/0x410
[  568.748853][ T6576]  ? __fget_files+0x2a/0x410
[  568.748873][ T6576]  ksys_read+0x18f/0x2b0
[  568.748886][ T6576]  ? __pfx_ksys_read+0x10/0x10
[  568.748897][ T6576]  ? do_syscall_64+0x100/0x230
[  568.748909][ T6576]  ? do_syscall_64+0xb6/0x230
[  568.748920][ T6576]  do_syscall_64+0xf3/0x230
[  568.748931][ T6576]  ? clear_bhb_loop+0x35/0x90
[  568.748948][ T6576]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  568.748961][ T6576] RIP: 0033:0x7fb61158bb7c
[  568.748972][ T6576] 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
[  568.748981][ T6576] RSP: 002b:00007fb6123e5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  568.748996][ T6576] RAX: ffffffffffffffda RBX: 00007fb6117a5fa0 RCX: 00007fb61158bb7c
[  568.749003][ T6576] RDX: 000000000000000f RSI: 00007fb6123e50a0 RDI: 0000000000000005
[  568.749010][ T6576] RBP: 00007fb6123e5090 R08: 0000000000000000 R09: 0000000000000000
[  568.749017][ T6576] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  568.749023][ T6576] R13: 0000000000000000 R14: 00007fb6117a5fa0 R15: 00007ffef7fc2b28
[  568.749038][ T6576]  </TASK>
[  569.864491][ T6579] FAULT_INJECTION: forcing a failure.
[  569.864491][ T6579] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  569.864517][ T6579] CPU: 0 UID: 0 PID: 6579 Comm: syz.6.432 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  569.864529][ T6579] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  569.864536][ T6579] Call Trace:
[  569.864540][ T6579]  <TASK>
[  569.864546][ T6579]  dump_stack_lvl+0x241/0x360
[  569.864564][ T6579]  ? __pfx_dump_stack_lvl+0x10/0x10
[  569.864576][ T6579]  ? __pfx__printk+0x10/0x10
[  569.864591][ T6579]  ? snprintf+0xda/0x120
[  569.864607][ T6579]  should_fail_ex+0x40a/0x550
[  569.864626][ T6579]  _copy_to_user+0x31/0xb0
[  569.864644][ T6579]  simple_read_from_buffer+0xca/0x150
[  569.864661][ T6579]  proc_fail_nth_read+0x1e9/0x250
[  569.864679][ T6579]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  569.864695][ T6579]  ? rw_verify_area+0x243/0x630
[  569.864706][ T6579]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  569.864720][ T6579]  vfs_read+0x1f8/0xb40
[  569.864732][ T6579]  ? fdget_pos+0x254/0x320
[  569.864748][ T6579]  ? __pfx___mutex_lock+0x10/0x10
[  569.864764][ T6579]  ? __pfx_vfs_read+0x10/0x10
[  569.864772][ T6579]  ? do_sys_openat2+0x17a/0x1d0
[  569.864788][ T6579]  ? __fget_files+0x2a/0x410
[  569.864803][ T6579]  ? __fget_files+0x395/0x410
[  569.864838][ T6579]  ? __fget_files+0x2a/0x410
[  569.864858][ T6579]  ksys_read+0x18f/0x2b0
[  569.864870][ T6579]  ? __pfx_ksys_read+0x10/0x10
[  569.864882][ T6579]  ? do_syscall_64+0x100/0x230
[  569.864895][ T6579]  ? do_syscall_64+0xb6/0x230
[  569.864906][ T6579]  do_syscall_64+0xf3/0x230
[  569.864916][ T6579]  ? clear_bhb_loop+0x35/0x90
[  569.864933][ T6579]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  569.864948][ T6579] RIP: 0033:0x7fe53838bb7c
[  569.864958][ T6579] 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
[  569.864968][ T6579] RSP: 002b:00007fe5392c0030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  569.864982][ T6579] RAX: ffffffffffffffda RBX: 00007fe5385a5fa0 RCX: 00007fe53838bb7c
[  569.864990][ T6579] RDX: 000000000000000f RSI: 00007fe5392c00a0 RDI: 0000000000000005
[  569.864997][ T6579] RBP: 00007fe5392c0090 R08: 0000000000000000 R09: 0000000000000000
[  569.865004][ T6579] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  569.865010][ T6579] R13: 0000000000000000 R14: 00007fe5385a5fa0 R15: 00007fff4c5dba98
[  569.865032][ T6579]  </TASK>
[  569.875861][ T6580] FAULT_INJECTION: forcing a failure.
[  569.875861][ T6580] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  569.875884][ T6580] CPU: 0 UID: 0 PID: 6580 Comm: syz.5.433 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  569.875896][ T6580] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  569.875904][ T6580] Call Trace:
[  569.875908][ T6580]  <TASK>
[  569.875913][ T6580]  dump_stack_lvl+0x241/0x360
[  569.875931][ T6580]  ? __pfx_dump_stack_lvl+0x10/0x10
[  569.875943][ T6580]  ? __pfx__printk+0x10/0x10
[  569.875956][ T6580]  ? snprintf+0xda/0x120
[  569.875971][ T6580]  should_fail_ex+0x40a/0x550
[  569.875989][ T6580]  _copy_to_user+0x31/0xb0
[  569.876004][ T6580]  simple_read_from_buffer+0xca/0x150
[  569.876021][ T6580]  proc_fail_nth_read+0x1e9/0x250
[  569.876047][ T6580]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  569.876063][ T6580]  ? rw_verify_area+0x243/0x630
[  569.876074][ T6580]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  569.876089][ T6580]  vfs_read+0x1f8/0xb40
[  569.876101][ T6580]  ? fdget_pos+0x254/0x320
[  569.876117][ T6580]  ? __pfx___mutex_lock+0x10/0x10
[  569.876134][ T6580]  ? __pfx_vfs_read+0x10/0x10
[  569.876143][ T6580]  ? do_sys_openat2+0x17a/0x1d0
[  569.876158][ T6580]  ? __fget_files+0x2a/0x410
[  569.876172][ T6580]  ? __fget_files+0x395/0x410
[  569.876185][ T6580]  ? __fget_files+0x2a/0x410
[  569.876203][ T6580]  ksys_read+0x18f/0x2b0
[  569.876215][ T6580]  ? __pfx_ksys_read+0x10/0x10
[  569.876226][ T6580]  ? do_syscall_64+0x100/0x230
[  569.876238][ T6580]  ? do_syscall_64+0xb6/0x230
[  569.876249][ T6580]  do_syscall_64+0xf3/0x230
[  569.876259][ T6580]  ? clear_bhb_loop+0x35/0x90
[  569.876276][ T6580]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  569.876288][ T6580] RIP: 0033:0x7f12abd8bb7c
[  569.876299][ T6580] 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
[  569.876307][ T6580] RSP: 002b:00007f12acc94030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  569.876320][ T6580] RAX: ffffffffffffffda RBX: 00007f12abfa5fa0 RCX: 00007f12abd8bb7c
[  569.876328][ T6580] RDX: 000000000000000f RSI: 00007f12acc940a0 RDI: 0000000000000005
[  569.876335][ T6580] RBP: 00007f12acc94090 R08: 0000000000000000 R09: 0000000000000000
[  569.876342][ T6580] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  569.876349][ T6580] R13: 0000000000000000 R14: 00007f12abfa5fa0 R15: 00007ffefc4051c8
[  569.876364][ T6580]  </TASK>
[  570.307917][ T6582] FAULT_INJECTION: forcing a failure.
[  570.307917][ T6582] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  570.307935][ T6582] CPU: 0 UID: 0 PID: 6582 Comm: syz.2.434 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  570.307944][ T6582] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  570.307948][ T6582] Call Trace:
[  570.307951][ T6582]  <TASK>
[  570.307955][ T6582]  dump_stack_lvl+0x241/0x360
[  570.307968][ T6582]  ? __pfx_dump_stack_lvl+0x10/0x10
[  570.307976][ T6582]  ? __pfx__printk+0x10/0x10
[  570.307989][ T6582]  ? snprintf+0xda/0x120
[  570.308003][ T6582]  should_fail_ex+0x40a/0x550
[  570.308021][ T6582]  _copy_to_user+0x31/0xb0
[  570.308036][ T6582]  simple_read_from_buffer+0xca/0x150
[  570.308061][ T6582]  proc_fail_nth_read+0x1e9/0x250
[  570.308076][ T6582]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  570.308091][ T6582]  ? rw_verify_area+0x243/0x630
[  570.308103][ T6582]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  570.308116][ T6582]  vfs_read+0x1f8/0xb40
[  570.308127][ T6582]  ? fdget_pos+0x254/0x320
[  570.308142][ T6582]  ? __pfx___mutex_lock+0x10/0x10
[  570.308157][ T6582]  ? __pfx_vfs_read+0x10/0x10
[  570.308165][ T6582]  ? do_sys_openat2+0x17a/0x1d0
[  570.308181][ T6582]  ? __fget_files+0x2a/0x410
[  570.308196][ T6582]  ? __fget_files+0x395/0x410
[  570.308208][ T6582]  ? __fget_files+0x2a/0x410
[  570.308226][ T6582]  ksys_read+0x18f/0x2b0
[  570.308239][ T6582]  ? __pfx_ksys_read+0x10/0x10
[  570.308250][ T6582]  ? do_syscall_64+0x100/0x230
[  570.308261][ T6582]  ? do_syscall_64+0xb6/0x230
[  570.308271][ T6582]  do_syscall_64+0xf3/0x230
[  570.308281][ T6582]  ? clear_bhb_loop+0x35/0x90
[  570.308297][ T6582]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  570.308329][ T6582] RIP: 0033:0x7f7f4038bb7c
[  570.308340][ T6582] 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
[  570.308347][ T6582] RSP: 002b:00007f7f41145030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  570.308356][ T6582] RAX: ffffffffffffffda RBX: 00007f7f405a5fa0 RCX: 00007f7f4038bb7c
[  570.308361][ T6582] RDX: 000000000000000f RSI: 00007f7f411450a0 RDI: 0000000000000005
[  570.308366][ T6582] RBP: 00007f7f41145090 R08: 0000000000000000 R09: 0000000000000000
[  570.308373][ T6582] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  570.308380][ T6582] R13: 0000000000000000 R14: 00007f7f405a5fa0 R15: 00007fff34abd738
[  570.308394][ T6582]  </TASK>
[  570.414863][ T6584] FAULT_INJECTION: forcing a failure.
[  570.414863][ T6584] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  570.414889][ T6584] CPU: 0 UID: 0 PID: 6584 Comm: syz.3.435 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  570.414901][ T6584] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  570.414908][ T6584] Call Trace:
[  570.414912][ T6584]  <TASK>
[  570.414917][ T6584]  dump_stack_lvl+0x241/0x360
[  570.414934][ T6584]  ? __pfx_dump_stack_lvl+0x10/0x10
[  570.414945][ T6584]  ? __pfx__printk+0x10/0x10
[  570.414960][ T6584]  ? snprintf+0xda/0x120
[  570.414974][ T6584]  should_fail_ex+0x40a/0x550
[  570.414992][ T6584]  _copy_to_user+0x31/0xb0
[  570.415007][ T6584]  simple_read_from_buffer+0xca/0x150
[  570.415024][ T6584]  proc_fail_nth_read+0x1e9/0x250
[  570.415039][ T6584]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  570.415065][ T6584]  ? rw_verify_area+0x243/0x630
[  570.415077][ T6584]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  570.415092][ T6584]  vfs_read+0x1f8/0xb40
[  570.415105][ T6584]  ? fdget_pos+0x254/0x320
[  570.415121][ T6584]  ? __pfx___mutex_lock+0x10/0x10
[  570.415139][ T6584]  ? __pfx_vfs_read+0x10/0x10
[  570.415148][ T6584]  ? do_sys_openat2+0x17a/0x1d0
[  570.415165][ T6584]  ? __fget_files+0x2a/0x410
[  570.415180][ T6584]  ? __fget_files+0x395/0x410
[  570.415193][ T6584]  ? __fget_files+0x2a/0x410
[  570.415212][ T6584]  ksys_read+0x18f/0x2b0
[  570.415226][ T6584]  ? __pfx_ksys_read+0x10/0x10
[  570.415237][ T6584]  ? do_syscall_64+0x100/0x230
[  570.415250][ T6584]  ? do_syscall_64+0xb6/0x230
[  570.415261][ T6584]  do_syscall_64+0xf3/0x230
[  570.415271][ T6584]  ? clear_bhb_loop+0x35/0x90
[  570.415290][ T6584]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  570.415305][ T6584] RIP: 0033:0x7fa97398bb7c
[  570.415316][ T6584] 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
[  570.415326][ T6584] RSP: 002b:00007fa9747b5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  570.415340][ T6584] RAX: ffffffffffffffda RBX: 00007fa973ba5fa0 RCX: 00007fa97398bb7c
[  570.415348][ T6584] RDX: 000000000000000f RSI: 00007fa9747b50a0 RDI: 0000000000000005
[  570.415354][ T6584] RBP: 00007fa9747b5090 R08: 0000000000000000 R09: 0000000000000000
[  570.415361][ T6584] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  570.415368][ T6584] R13: 0000000000000000 R14: 00007fa973ba5fa0 R15: 00007ffe19e290f8
[  570.415384][ T6584]  </TASK>
[  570.781144][ T6586] FAULT_INJECTION: forcing a failure.
[  570.781144][ T6586] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  570.781171][ T6586] CPU: 0 UID: 0 PID: 6586 Comm: syz.1.436 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  570.781184][ T6586] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  570.781192][ T6586] Call Trace:
[  570.781197][ T6586]  <TASK>
[  570.781202][ T6586]  dump_stack_lvl+0x241/0x360
[  570.781223][ T6586]  ? __pfx_dump_stack_lvl+0x10/0x10
[  570.781236][ T6586]  ? __pfx__printk+0x10/0x10
[  570.781253][ T6586]  ? snprintf+0xda/0x120
[  570.781275][ T6586]  should_fail_ex+0x40a/0x550
[  570.781296][ T6586]  _copy_to_user+0x31/0xb0
[  570.781314][ T6586]  simple_read_from_buffer+0xca/0x150
[  570.781332][ T6586]  proc_fail_nth_read+0x1e9/0x250
[  570.781350][ T6586]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  570.781367][ T6586]  ? rw_verify_area+0x243/0x630
[  570.781379][ T6586]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  570.781395][ T6586]  vfs_read+0x1f8/0xb40
[  570.781408][ T6586]  ? fdget_pos+0x254/0x320
[  570.781425][ T6586]  ? __pfx___mutex_lock+0x10/0x10
[  570.781443][ T6586]  ? __pfx_vfs_read+0x10/0x10
[  570.781453][ T6586]  ? do_sys_openat2+0x17a/0x1d0
[  570.781471][ T6586]  ? __fget_files+0x2a/0x410
[  570.781488][ T6586]  ? __fget_files+0x395/0x410
[  570.781503][ T6586]  ? __fget_files+0x2a/0x410
[  570.781525][ T6586]  ksys_read+0x18f/0x2b0
[  570.781538][ T6586]  ? __pfx_ksys_read+0x10/0x10
[  570.781551][ T6586]  ? do_syscall_64+0x100/0x230
[  570.781564][ T6586]  ? do_syscall_64+0xb6/0x230
[  570.781577][ T6586]  do_syscall_64+0xf3/0x230
[  570.781587][ T6586]  ? clear_bhb_loop+0x35/0x90
[  570.781606][ T6586]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  570.781621][ T6586] RIP: 0033:0x7f3ec898bb7c
[  570.781632][ T6586] 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
[  570.781673][ T6586] RSP: 002b:00007f3ec9749030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  570.781687][ T6586] RAX: ffffffffffffffda RBX: 00007f3ec8ba5fa0 RCX: 00007f3ec898bb7c
[  570.781696][ T6586] RDX: 000000000000000f RSI: 00007f3ec97490a0 RDI: 0000000000000005
[  570.781704][ T6586] RBP: 00007f3ec9749090 R08: 0000000000000000 R09: 0000000000000000
[  570.781712][ T6586] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  570.781719][ T6586] R13: 0000000000000000 R14: 00007f3ec8ba5fa0 R15: 00007ffc7e63dd68
[  570.781738][ T6586]  </TASK>
[  570.955203][ T6588] FAULT_INJECTION: forcing a failure.
[  570.955203][ T6588] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  570.955228][ T6588] CPU: 0 UID: 0 PID: 6588 Comm: syz.4.437 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  570.955241][ T6588] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  570.955248][ T6588] Call Trace:
[  570.955252][ T6588]  <TASK>
[  570.955265][ T6588]  dump_stack_lvl+0x241/0x360
[  570.955284][ T6588]  ? __pfx_dump_stack_lvl+0x10/0x10
[  570.955294][ T6588]  ? __pfx__printk+0x10/0x10
[  570.955308][ T6588]  ? snprintf+0xda/0x120
[  570.955323][ T6588]  should_fail_ex+0x40a/0x550
[  570.955340][ T6588]  _copy_to_user+0x31/0xb0
[  570.955354][ T6588]  simple_read_from_buffer+0xca/0x150
[  570.955371][ T6588]  proc_fail_nth_read+0x1e9/0x250
[  570.955388][ T6588]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  570.955404][ T6588]  ? rw_verify_area+0x243/0x630
[  570.955415][ T6588]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  570.955429][ T6588]  vfs_read+0x1f8/0xb40
[  570.955441][ T6588]  ? fdget_pos+0x254/0x320
[  570.955456][ T6588]  ? __pfx___mutex_lock+0x10/0x10
[  570.955472][ T6588]  ? __pfx_vfs_read+0x10/0x10
[  570.955481][ T6588]  ? do_sys_openat2+0x17a/0x1d0
[  570.955497][ T6588]  ? __fget_files+0x2a/0x410
[  570.955511][ T6588]  ? __fget_files+0x395/0x410
[  570.955524][ T6588]  ? __fget_files+0x2a/0x410
[  570.955544][ T6588]  ksys_read+0x18f/0x2b0
[  570.955557][ T6588]  ? __pfx_ksys_read+0x10/0x10
[  570.955569][ T6588]  ? do_syscall_64+0x100/0x230
[  570.955580][ T6588]  ? do_syscall_64+0xb6/0x230
[  570.955591][ T6588]  do_syscall_64+0xf3/0x230
[  570.955601][ T6588]  ? clear_bhb_loop+0x35/0x90
[  570.955618][ T6588]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  570.955632][ T6588] RIP: 0033:0x7fb61158bb7c
[  570.955642][ T6588] 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
[  570.955652][ T6588] RSP: 002b:00007fb6123e5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  570.955665][ T6588] RAX: ffffffffffffffda RBX: 00007fb6117a5fa0 RCX: 00007fb61158bb7c
[  570.955674][ T6588] RDX: 000000000000000f RSI: 00007fb6123e50a0 RDI: 0000000000000005
[  570.955681][ T6588] RBP: 00007fb6123e5090 R08: 0000000000000000 R09: 0000000000000000
[  570.955688][ T6588] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  570.955694][ T6588] R13: 0000000000000000 R14: 00007fb6117a5fa0 R15: 00007ffef7fc2b28
[  570.955709][ T6588]  </TASK>
[  572.164569][ T6591] FAULT_INJECTION: forcing a failure.
[  572.164569][ T6591] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  572.164596][ T6591] CPU: 0 UID: 0 PID: 6591 Comm: syz.6.438 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  572.164608][ T6591] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  572.164616][ T6591] Call Trace:
[  572.164620][ T6591]  <TASK>
[  572.164625][ T6591]  dump_stack_lvl+0x241/0x360
[  572.164644][ T6591]  ? __pfx_dump_stack_lvl+0x10/0x10
[  572.164656][ T6591]  ? __pfx__printk+0x10/0x10
[  572.164670][ T6591]  ? snprintf+0xda/0x120
[  572.164684][ T6591]  should_fail_ex+0x40a/0x550
[  572.164702][ T6591]  _copy_to_user+0x31/0xb0
[  572.164719][ T6591]  simple_read_from_buffer+0xca/0x150
[  572.164736][ T6591]  proc_fail_nth_read+0x1e9/0x250
[  572.164753][ T6591]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  572.164768][ T6591]  ? rw_verify_area+0x243/0x630
[  572.164778][ T6591]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  572.164793][ T6591]  vfs_read+0x1f8/0xb40
[  572.164805][ T6591]  ? fdget_pos+0x254/0x320
[  572.164820][ T6591]  ? __pfx___mutex_lock+0x10/0x10
[  572.164836][ T6591]  ? __pfx_vfs_read+0x10/0x10
[  572.164844][ T6591]  ? do_sys_openat2+0x17a/0x1d0
[  572.164861][ T6591]  ? __fget_files+0x2a/0x410
[  572.164875][ T6591]  ? __fget_files+0x395/0x410
[  572.164888][ T6591]  ? __fget_files+0x2a/0x410
[  572.164907][ T6591]  ksys_read+0x18f/0x2b0
[  572.164919][ T6591]  ? __pfx_ksys_read+0x10/0x10
[  572.164931][ T6591]  ? do_syscall_64+0x100/0x230
[  572.164942][ T6591]  ? do_syscall_64+0xb6/0x230
[  572.164954][ T6591]  do_syscall_64+0xf3/0x230
[  572.164963][ T6591]  ? clear_bhb_loop+0x35/0x90
[  572.164980][ T6591]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  572.164994][ T6591] RIP: 0033:0x7fe53838bb7c
[  572.165005][ T6591] 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
[  572.165015][ T6591] RSP: 002b:00007fe5392c0030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  572.165028][ T6591] RAX: ffffffffffffffda RBX: 00007fe5385a5fa0 RCX: 00007fe53838bb7c
[  572.165036][ T6591] RDX: 000000000000000f RSI: 00007fe5392c00a0 RDI: 0000000000000005
[  572.165042][ T6591] RBP: 00007fe5392c0090 R08: 0000000000000000 R09: 0000000000000000
[  572.165049][ T6591] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  572.165056][ T6591] R13: 0000000000000000 R14: 00007fe5385a5fa0 R15: 00007fff4c5dba98
[  572.165072][ T6591]  </TASK>
[  572.219067][ T6592] FAULT_INJECTION: forcing a failure.
[  572.219067][ T6592] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  572.219090][ T6592] CPU: 0 UID: 0 PID: 6592 Comm: syz.5.439 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  572.219102][ T6592] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  572.219109][ T6592] Call Trace:
[  572.219114][ T6592]  <TASK>
[  572.219119][ T6592]  dump_stack_lvl+0x241/0x360
[  572.219137][ T6592]  ? __pfx_dump_stack_lvl+0x10/0x10
[  572.219149][ T6592]  ? __pfx__printk+0x10/0x10
[  572.219165][ T6592]  ? snprintf+0xda/0x120
[  572.219179][ T6592]  should_fail_ex+0x40a/0x550
[  572.219198][ T6592]  _copy_to_user+0x31/0xb0
[  572.219214][ T6592]  simple_read_from_buffer+0xca/0x150
[  572.219231][ T6592]  proc_fail_nth_read+0x1e9/0x250
[  572.219247][ T6592]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  572.219263][ T6592]  ? rw_verify_area+0x243/0x630
[  572.219282][ T6592]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  572.219298][ T6592]  vfs_read+0x1f8/0xb40
[  572.219309][ T6592]  ? fdget_pos+0x254/0x320
[  572.219325][ T6592]  ? __pfx___mutex_lock+0x10/0x10
[  572.219341][ T6592]  ? __pfx_vfs_read+0x10/0x10
[  572.219349][ T6592]  ? do_sys_openat2+0x17a/0x1d0
[  572.219366][ T6592]  ? __fget_files+0x2a/0x410
[  572.219381][ T6592]  ? __fget_files+0x395/0x410
[  572.219394][ T6592]  ? __fget_files+0x2a/0x410
[  572.219413][ T6592]  ksys_read+0x18f/0x2b0
[  572.219425][ T6592]  ? __pfx_ksys_read+0x10/0x10
[  572.219435][ T6592]  ? do_syscall_64+0x100/0x230
[  572.219446][ T6592]  ? do_syscall_64+0xb6/0x230
[  572.219457][ T6592]  do_syscall_64+0xf3/0x230
[  572.219467][ T6592]  ? clear_bhb_loop+0x35/0x90
[  572.219485][ T6592]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  572.219499][ T6592] RIP: 0033:0x7f12abd8bb7c
[  572.219508][ T6592] 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
[  572.219514][ T6592] RSP: 002b:00007f12acc94030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  572.219524][ T6592] RAX: ffffffffffffffda RBX: 00007f12abfa5fa0 RCX: 00007f12abd8bb7c
[  572.219529][ T6592] RDX: 000000000000000f RSI: 00007f12acc940a0 RDI: 0000000000000005
[  572.219534][ T6592] RBP: 00007f12acc94090 R08: 0000000000000000 R09: 0000000000000000
[  572.219538][ T6592] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  572.219543][ T6592] R13: 0000000000000000 R14: 00007f12abfa5fa0 R15: 00007ffefc4051c8
[  572.219559][ T6592]  </TASK>
[  572.595331][ T6594] FAULT_INJECTION: forcing a failure.
[  572.595331][ T6594] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  572.595352][ T6594] CPU: 0 UID: 0 PID: 6594 Comm: syz.2.440 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  572.595363][ T6594] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  572.595370][ T6594] Call Trace:
[  572.595374][ T6594]  <TASK>
[  572.595379][ T6594]  dump_stack_lvl+0x241/0x360
[  572.595398][ T6594]  ? __pfx_dump_stack_lvl+0x10/0x10
[  572.595409][ T6594]  ? __pfx__printk+0x10/0x10
[  572.595425][ T6594]  ? snprintf+0xda/0x120
[  572.595440][ T6594]  should_fail_ex+0x40a/0x550
[  572.595454][ T6594]  _copy_to_user+0x31/0xb0
[  572.595464][ T6594]  simple_read_from_buffer+0xca/0x150
[  572.595475][ T6594]  proc_fail_nth_read+0x1e9/0x250
[  572.595486][ T6594]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  572.595497][ T6594]  ? rw_verify_area+0x243/0x630
[  572.595506][ T6594]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  572.595520][ T6594]  vfs_read+0x1f8/0xb40
[  572.595532][ T6594]  ? fdget_pos+0x254/0x320
[  572.595547][ T6594]  ? __pfx___mutex_lock+0x10/0x10
[  572.595563][ T6594]  ? __pfx_vfs_read+0x10/0x10
[  572.595572][ T6594]  ? do_sys_openat2+0x17a/0x1d0
[  572.595587][ T6594]  ? __fget_files+0x2a/0x410
[  572.595602][ T6594]  ? __fget_files+0x395/0x410
[  572.595615][ T6594]  ? __fget_files+0x2a/0x410
[  572.595634][ T6594]  ksys_read+0x18f/0x2b0
[  572.595647][ T6594]  ? __pfx_ksys_read+0x10/0x10
[  572.595658][ T6594]  ? do_syscall_64+0x100/0x230
[  572.595669][ T6594]  ? do_syscall_64+0xb6/0x230
[  572.595679][ T6594]  do_syscall_64+0xf3/0x230
[  572.595687][ T6594]  ? clear_bhb_loop+0x35/0x90
[  572.595703][ T6594]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  572.595717][ T6594] RIP: 0033:0x7f7f4038bb7c
[  572.595727][ T6594] 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
[  572.595736][ T6594] RSP: 002b:00007f7f41145030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  572.595748][ T6594] RAX: ffffffffffffffda RBX: 00007f7f405a5fa0 RCX: 00007f7f4038bb7c
[  572.595755][ T6594] RDX: 000000000000000f RSI: 00007f7f411450a0 RDI: 0000000000000005
[  572.595762][ T6594] RBP: 00007f7f41145090 R08: 0000000000000000 R09: 0000000000000000
[  572.595768][ T6594] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  572.595774][ T6594] R13: 0000000000000000 R14: 00007f7f405a5fa0 R15: 00007fff34abd738
[  572.595789][ T6594]  </TASK>
[  572.746410][ T6596] FAULT_INJECTION: forcing a failure.
[  572.746410][ T6596] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  572.746435][ T6596] CPU: 0 UID: 0 PID: 6596 Comm: syz.3.441 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  572.746446][ T6596] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  572.746451][ T6596] Call Trace:
[  572.746454][ T6596]  <TASK>
[  572.746458][ T6596]  dump_stack_lvl+0x241/0x360
[  572.746473][ T6596]  ? __pfx_dump_stack_lvl+0x10/0x10
[  572.746505][ T6596]  ? __pfx__printk+0x10/0x10
[  572.746518][ T6596]  ? snprintf+0xda/0x120
[  572.746533][ T6596]  should_fail_ex+0x40a/0x550
[  572.746551][ T6596]  _copy_to_user+0x31/0xb0
[  572.746568][ T6596]  simple_read_from_buffer+0xca/0x150
[  572.746585][ T6596]  proc_fail_nth_read+0x1e9/0x250
[  572.746598][ T6596]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  572.746609][ T6596]  ? rw_verify_area+0x243/0x630
[  572.746619][ T6596]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  572.746632][ T6596]  vfs_read+0x1f8/0xb40
[  572.746644][ T6596]  ? fdget_pos+0x254/0x320
[  572.746659][ T6596]  ? __pfx___mutex_lock+0x10/0x10
[  572.746675][ T6596]  ? __pfx_vfs_read+0x10/0x10
[  572.746684][ T6596]  ? do_sys_openat2+0x17a/0x1d0
[  572.746701][ T6596]  ? __fget_files+0x2a/0x410
[  572.746716][ T6596]  ? __fget_files+0x395/0x410
[  572.746725][ T6596]  ? __fget_files+0x2a/0x410
[  572.746738][ T6596]  ksys_read+0x18f/0x2b0
[  572.746746][ T6596]  ? __pfx_ksys_read+0x10/0x10
[  572.746753][ T6596]  ? do_syscall_64+0x100/0x230
[  572.746760][ T6596]  ? do_syscall_64+0xb6/0x230
[  572.746767][ T6596]  do_syscall_64+0xf3/0x230
[  572.746774][ T6596]  ? clear_bhb_loop+0x35/0x90
[  572.746785][ T6596]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  572.746795][ T6596] RIP: 0033:0x7fa97398bb7c
[  572.746806][ T6596] 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
[  572.746815][ T6596] RSP: 002b:00007fa9747b5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  572.746828][ T6596] RAX: ffffffffffffffda RBX: 00007fa973ba5fa0 RCX: 00007fa97398bb7c
[  572.746835][ T6596] RDX: 000000000000000f RSI: 00007fa9747b50a0 RDI: 0000000000000005
[  572.746842][ T6596] RBP: 00007fa9747b5090 R08: 0000000000000000 R09: 0000000000000000
[  572.746849][ T6596] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  572.746856][ T6596] R13: 0000000000000000 R14: 00007fa973ba5fa0 R15: 00007ffe19e290f8
[  572.746873][ T6596]  </TASK>
[  573.004195][ T6598] FAULT_INJECTION: forcing a failure.
[  573.004195][ T6598] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  573.004221][ T6598] CPU: 0 UID: 0 PID: 6598 Comm: syz.1.442 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  573.004233][ T6598] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  573.004247][ T6598] Call Trace:
[  573.004251][ T6598]  <TASK>
[  573.004256][ T6598]  dump_stack_lvl+0x241/0x360
[  573.004276][ T6598]  ? __pfx_dump_stack_lvl+0x10/0x10
[  573.004287][ T6598]  ? __pfx__printk+0x10/0x10
[  573.004303][ T6598]  ? snprintf+0xda/0x120
[  573.004318][ T6598]  should_fail_ex+0x40a/0x550
[  573.004341][ T6598]  _copy_to_user+0x31/0xb0
[  573.004356][ T6598]  simple_read_from_buffer+0xca/0x150
[  573.004374][ T6598]  proc_fail_nth_read+0x1e9/0x250
[  573.004389][ T6598]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  573.004405][ T6598]  ? rw_verify_area+0x243/0x630
[  573.004417][ T6598]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  573.004432][ T6598]  vfs_read+0x1f8/0xb40
[  573.004443][ T6598]  ? fdget_pos+0x254/0x320
[  573.004459][ T6598]  ? __pfx___mutex_lock+0x10/0x10
[  573.004475][ T6598]  ? __pfx_vfs_read+0x10/0x10
[  573.004484][ T6598]  ? do_sys_openat2+0x17a/0x1d0
[  573.004500][ T6598]  ? __fget_files+0x2a/0x410
[  573.004515][ T6598]  ? __fget_files+0x395/0x410
[  573.004528][ T6598]  ? __fget_files+0x2a/0x410
[  573.004546][ T6598]  ksys_read+0x18f/0x2b0
[  573.004558][ T6598]  ? __pfx_ksys_read+0x10/0x10
[  573.004569][ T6598]  ? do_syscall_64+0x100/0x230
[  573.004581][ T6598]  ? do_syscall_64+0xb6/0x230
[  573.004592][ T6598]  do_syscall_64+0xf3/0x230
[  573.004601][ T6598]  ? clear_bhb_loop+0x35/0x90
[  573.004616][ T6598]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  573.004630][ T6598] RIP: 0033:0x7f3ec898bb7c
[  573.004640][ T6598] 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
[  573.004650][ T6598] RSP: 002b:00007f3ec9749030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  573.004663][ T6598] RAX: ffffffffffffffda RBX: 00007f3ec8ba5fa0 RCX: 00007f3ec898bb7c
[  573.004671][ T6598] RDX: 000000000000000f RSI: 00007f3ec97490a0 RDI: 0000000000000005
[  573.004677][ T6598] RBP: 00007f3ec9749090 R08: 0000000000000000 R09: 0000000000000000
[  573.004684][ T6598] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  573.004691][ T6598] R13: 0000000000000000 R14: 00007f3ec8ba5fa0 R15: 00007ffc7e63dd68
[  573.004707][ T6598]  </TASK>
[  573.138158][ T6600] FAULT_INJECTION: forcing a failure.
[  573.138158][ T6600] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  573.138185][ T6600] CPU: 0 UID: 0 PID: 6600 Comm: syz.4.443 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  573.138197][ T6600] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  573.138204][ T6600] Call Trace:
[  573.138209][ T6600]  <TASK>
[  573.138213][ T6600]  dump_stack_lvl+0x241/0x360
[  573.138233][ T6600]  ? __pfx_dump_stack_lvl+0x10/0x10
[  573.138245][ T6600]  ? __pfx__printk+0x10/0x10
[  573.138259][ T6600]  ? snprintf+0xda/0x120
[  573.138274][ T6600]  should_fail_ex+0x40a/0x550
[  573.138293][ T6600]  _copy_to_user+0x31/0xb0
[  573.138308][ T6600]  simple_read_from_buffer+0xca/0x150
[  573.138326][ T6600]  proc_fail_nth_read+0x1e9/0x250
[  573.138340][ T6600]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  573.138354][ T6600]  ? rw_verify_area+0x243/0x630
[  573.138364][ T6600]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  573.138378][ T6600]  vfs_read+0x1f8/0xb40
[  573.138390][ T6600]  ? fdget_pos+0x254/0x320
[  573.138405][ T6600]  ? __pfx___mutex_lock+0x10/0x10
[  573.138420][ T6600]  ? __pfx_vfs_read+0x10/0x10
[  573.138428][ T6600]  ? do_sys_openat2+0x17a/0x1d0
[  573.138444][ T6600]  ? __fget_files+0x2a/0x410
[  573.138458][ T6600]  ? __fget_files+0x395/0x410
[  573.138471][ T6600]  ? __fget_files+0x2a/0x410
[  573.138490][ T6600]  ksys_read+0x18f/0x2b0
[  573.138502][ T6600]  ? __pfx_ksys_read+0x10/0x10
[  573.138514][ T6600]  ? do_syscall_64+0x100/0x230
[  573.138526][ T6600]  ? do_syscall_64+0xb6/0x230
[  573.138537][ T6600]  do_syscall_64+0xf3/0x230
[  573.138546][ T6600]  ? clear_bhb_loop+0x35/0x90
[  573.138562][ T6600]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  573.138576][ T6600] RIP: 0033:0x7fb61158bb7c
[  573.138586][ T6600] 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
[  573.138596][ T6600] RSP: 002b:00007fb6123e5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  573.138609][ T6600] RAX: ffffffffffffffda RBX: 00007fb6117a5fa0 RCX: 00007fb61158bb7c
[  573.138617][ T6600] RDX: 000000000000000f RSI: 00007fb6123e50a0 RDI: 0000000000000005
[  573.138623][ T6600] RBP: 00007fb6123e5090 R08: 0000000000000000 R09: 0000000000000000
[  573.138630][ T6600] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  573.138636][ T6600] R13: 0000000000000000 R14: 00007fb6117a5fa0 R15: 00007ffef7fc2b28
[  573.138653][ T6600]  </TASK>
[  574.076626][ T6602] FAULT_INJECTION: forcing a failure.
[  574.076626][ T6602] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  574.076651][ T6602] CPU: 0 UID: 0 PID: 6602 Comm: syz.6.444 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  574.076664][ T6602] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  574.076670][ T6602] Call Trace:
[  574.076675][ T6602]  <TASK>
[  574.076680][ T6602]  dump_stack_lvl+0x241/0x360
[  574.076699][ T6602]  ? __pfx_dump_stack_lvl+0x10/0x10
[  574.076711][ T6602]  ? __pfx__printk+0x10/0x10
[  574.076725][ T6602]  ? snprintf+0xda/0x120
[  574.076741][ T6602]  should_fail_ex+0x40a/0x550
[  574.076759][ T6602]  _copy_to_user+0x31/0xb0
[  574.076775][ T6602]  simple_read_from_buffer+0xca/0x150
[  574.076791][ T6602]  proc_fail_nth_read+0x1e9/0x250
[  574.076808][ T6602]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  574.076823][ T6602]  ? rw_verify_area+0x243/0x630
[  574.076834][ T6602]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  574.076848][ T6602]  vfs_read+0x1f8/0xb40
[  574.076861][ T6602]  ? fdget_pos+0x254/0x320
[  574.076877][ T6602]  ? __pfx___mutex_lock+0x10/0x10
[  574.076892][ T6602]  ? __pfx_vfs_read+0x10/0x10
[  574.076901][ T6602]  ? do_sys_openat2+0x17a/0x1d0
[  574.076917][ T6602]  ? __fget_files+0x2a/0x410
[  574.076932][ T6602]  ? __fget_files+0x395/0x410
[  574.076945][ T6602]  ? __fget_files+0x2a/0x410
[  574.076964][ T6602]  ksys_read+0x18f/0x2b0
[  574.076977][ T6602]  ? __pfx_ksys_read+0x10/0x10
[  574.076988][ T6602]  ? do_syscall_64+0x100/0x230
[  574.077001][ T6602]  ? do_syscall_64+0xb6/0x230
[  574.077012][ T6602]  do_syscall_64+0xf3/0x230
[  574.077022][ T6602]  ? clear_bhb_loop+0x35/0x90
[  574.077038][ T6602]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  574.077052][ T6602] RIP: 0033:0x7fe53838bb7c
[  574.077062][ T6602] 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
[  574.077072][ T6602] RSP: 002b:00007fe5392c0030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  574.077084][ T6602] RAX: ffffffffffffffda RBX: 00007fe5385a5fa0 RCX: 00007fe53838bb7c
[  574.077092][ T6602] RDX: 000000000000000f RSI: 00007fe5392c00a0 RDI: 0000000000000005
[  574.077098][ T6602] RBP: 00007fe5392c0090 R08: 0000000000000000 R09: 0000000000000000
[  574.077105][ T6602] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  574.077111][ T6602] R13: 0000000000000000 R14: 00007fe5385a5fa0 R15: 00007fff4c5dba98
[  574.077128][ T6602]  </TASK>
[  574.150453][ T6604] FAULT_INJECTION: forcing a failure.
[  574.150453][ T6604] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  574.150479][ T6604] CPU: 0 UID: 0 PID: 6604 Comm: syz.5.445 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  574.150491][ T6604] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  574.150498][ T6604] Call Trace:
[  574.150502][ T6604]  <TASK>
[  574.150506][ T6604]  dump_stack_lvl+0x241/0x360
[  574.150525][ T6604]  ? __pfx_dump_stack_lvl+0x10/0x10
[  574.150537][ T6604]  ? __pfx__printk+0x10/0x10
[  574.150552][ T6604]  ? snprintf+0xda/0x120
[  574.150567][ T6604]  should_fail_ex+0x40a/0x550
[  574.150586][ T6604]  _copy_to_user+0x31/0xb0
[  574.150601][ T6604]  simple_read_from_buffer+0xca/0x150
[  574.150618][ T6604]  proc_fail_nth_read+0x1e9/0x250
[  574.150634][ T6604]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  574.150652][ T6604]  ? rw_verify_area+0x243/0x630
[  574.150663][ T6604]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  574.150678][ T6604]  vfs_read+0x1f8/0xb40
[  574.150690][ T6604]  ? fdget_pos+0x254/0x320
[  574.150706][ T6604]  ? __pfx___mutex_lock+0x10/0x10
[  574.150722][ T6604]  ? __pfx_vfs_read+0x10/0x10
[  574.150731][ T6604]  ? do_sys_openat2+0x17a/0x1d0
[  574.150747][ T6604]  ? __fget_files+0x2a/0x410
[  574.150762][ T6604]  ? __fget_files+0x395/0x410
[  574.150775][ T6604]  ? __fget_files+0x2a/0x410
[  574.150794][ T6604]  ksys_read+0x18f/0x2b0
[  574.150806][ T6604]  ? __pfx_ksys_read+0x10/0x10
[  574.150817][ T6604]  ? do_syscall_64+0x100/0x230
[  574.150828][ T6604]  ? do_syscall_64+0xb6/0x230
[  574.150839][ T6604]  do_syscall_64+0xf3/0x230
[  574.150849][ T6604]  ? clear_bhb_loop+0x35/0x90
[  574.150865][ T6604]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  574.150878][ T6604] RIP: 0033:0x7f12abd8bb7c
[  574.150888][ T6604] 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
[  574.150897][ T6604] RSP: 002b:00007f12acc94030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  574.150911][ T6604] RAX: ffffffffffffffda RBX: 00007f12abfa5fa0 RCX: 00007f12abd8bb7c
[  574.150918][ T6604] RDX: 000000000000000f RSI: 00007f12acc940a0 RDI: 0000000000000005
[  574.150925][ T6604] RBP: 00007f12acc94090 R08: 0000000000000000 R09: 0000000000000000
[  574.150932][ T6604] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  574.150938][ T6604] R13: 0000000000000000 R14: 00007f12abfa5fa0 R15: 00007ffefc4051c8
[  574.150954][ T6604]  </TASK>
[  574.576961][ T6606] FAULT_INJECTION: forcing a failure.
[  574.576961][ T6606] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  574.576995][ T6606] CPU: 0 UID: 0 PID: 6606 Comm: syz.2.446 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  574.577004][ T6606] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  574.577009][ T6606] Call Trace:
[  574.577012][ T6606]  <TASK>
[  574.577015][ T6606]  dump_stack_lvl+0x241/0x360
[  574.577028][ T6606]  ? __pfx_dump_stack_lvl+0x10/0x10
[  574.577036][ T6606]  ? __pfx__printk+0x10/0x10
[  574.577045][ T6606]  ? snprintf+0xda/0x120
[  574.577055][ T6606]  should_fail_ex+0x40a/0x550
[  574.577068][ T6606]  _copy_to_user+0x31/0xb0
[  574.577079][ T6606]  simple_read_from_buffer+0xca/0x150
[  574.577090][ T6606]  proc_fail_nth_read+0x1e9/0x250
[  574.577102][ T6606]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  574.577112][ T6606]  ? rw_verify_area+0x243/0x630
[  574.577120][ T6606]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  574.577129][ T6606]  vfs_read+0x1f8/0xb40
[  574.577137][ T6606]  ? fdget_pos+0x254/0x320
[  574.577147][ T6606]  ? __pfx___mutex_lock+0x10/0x10
[  574.577158][ T6606]  ? __pfx_vfs_read+0x10/0x10
[  574.577164][ T6606]  ? do_sys_openat2+0x17a/0x1d0
[  574.577174][ T6606]  ? __fget_files+0x2a/0x410
[  574.577184][ T6606]  ? __fget_files+0x395/0x410
[  574.577193][ T6606]  ? __fget_files+0x2a/0x410
[  574.577206][ T6606]  ksys_read+0x18f/0x2b0
[  574.577213][ T6606]  ? __pfx_ksys_read+0x10/0x10
[  574.577221][ T6606]  ? do_syscall_64+0x100/0x230
[  574.577230][ T6606]  ? do_syscall_64+0xb6/0x230
[  574.577237][ T6606]  do_syscall_64+0xf3/0x230
[  574.577243][ T6606]  ? clear_bhb_loop+0x35/0x90
[  574.577254][ T6606]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  574.577264][ T6606] RIP: 0033:0x7f7f4038bb7c
[  574.577271][ T6606] 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
[  574.577296][ T6606] RSP: 002b:00007f7f41145030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  574.577306][ T6606] RAX: ffffffffffffffda RBX: 00007f7f405a5fa0 RCX: 00007f7f4038bb7c
[  574.577311][ T6606] RDX: 000000000000000f RSI: 00007f7f411450a0 RDI: 0000000000000005
[  574.577315][ T6606] RBP: 00007f7f41145090 R08: 0000000000000000 R09: 0000000000000000
[  574.577320][ T6606] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  574.577324][ T6606] R13: 0000000000000000 R14: 00007f7f405a5fa0 R15: 00007fff34abd738
[  574.577334][ T6606]  </TASK>
[  574.758405][ T6608] FAULT_INJECTION: forcing a failure.
[  574.758405][ T6608] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  574.758431][ T6608] CPU: 0 UID: 0 PID: 6608 Comm: syz.3.447 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  574.758443][ T6608] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  574.758449][ T6608] Call Trace:
[  574.758453][ T6608]  <TASK>
[  574.758458][ T6608]  dump_stack_lvl+0x241/0x360
[  574.758477][ T6608]  ? __pfx_dump_stack_lvl+0x10/0x10
[  574.758488][ T6608]  ? __pfx__printk+0x10/0x10
[  574.758503][ T6608]  ? snprintf+0xda/0x120
[  574.758518][ T6608]  should_fail_ex+0x40a/0x550
[  574.758537][ T6608]  _copy_to_user+0x31/0xb0
[  574.758552][ T6608]  simple_read_from_buffer+0xca/0x150
[  574.758568][ T6608]  proc_fail_nth_read+0x1e9/0x250
[  574.758584][ T6608]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  574.758600][ T6608]  ? rw_verify_area+0x243/0x630
[  574.758611][ T6608]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  574.758625][ T6608]  vfs_read+0x1f8/0xb40
[  574.758637][ T6608]  ? fdget_pos+0x254/0x320
[  574.758652][ T6608]  ? __pfx___mutex_lock+0x10/0x10
[  574.758668][ T6608]  ? __pfx_vfs_read+0x10/0x10
[  574.758677][ T6608]  ? do_sys_openat2+0x17a/0x1d0
[  574.758693][ T6608]  ? __fget_files+0x2a/0x410
[  574.758708][ T6608]  ? __fget_files+0x395/0x410
[  574.758721][ T6608]  ? __fget_files+0x2a/0x410
[  574.758739][ T6608]  ksys_read+0x18f/0x2b0
[  574.758752][ T6608]  ? __pfx_ksys_read+0x10/0x10
[  574.758763][ T6608]  ? do_syscall_64+0x100/0x230
[  574.758774][ T6608]  ? do_syscall_64+0xb6/0x230
[  574.758785][ T6608]  do_syscall_64+0xf3/0x230
[  574.758795][ T6608]  ? clear_bhb_loop+0x35/0x90
[  574.758811][ T6608]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  574.758824][ T6608] RIP: 0033:0x7fa97398bb7c
[  574.758835][ T6608] 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
[  574.758844][ T6608] RSP: 002b:00007fa9747b5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  574.758857][ T6608] RAX: ffffffffffffffda RBX: 00007fa973ba5fa0 RCX: 00007fa97398bb7c
[  574.758866][ T6608] RDX: 000000000000000f RSI: 00007fa9747b50a0 RDI: 0000000000000005
[  574.758872][ T6608] RBP: 00007fa9747b5090 R08: 0000000000000000 R09: 0000000000000000
[  574.758879][ T6608] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  574.758886][ T6608] R13: 0000000000000000 R14: 00007fa973ba5fa0 R15: 00007ffe19e290f8
[  574.758902][ T6608]  </TASK>
[  574.863371][ T6610] FAULT_INJECTION: forcing a failure.
[  574.863371][ T6610] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  574.863397][ T6610] CPU: 0 UID: 0 PID: 6610 Comm: syz.1.448 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  574.863409][ T6610] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  574.863416][ T6610] Call Trace:
[  574.863421][ T6610]  <TASK>
[  574.863426][ T6610]  dump_stack_lvl+0x241/0x360
[  574.863441][ T6610]  ? __pfx_dump_stack_lvl+0x10/0x10
[  574.863452][ T6610]  ? __pfx__printk+0x10/0x10
[  574.863465][ T6610]  ? snprintf+0xda/0x120
[  574.863481][ T6610]  should_fail_ex+0x40a/0x550
[  574.863500][ T6610]  _copy_to_user+0x31/0xb0
[  574.863516][ T6610]  simple_read_from_buffer+0xca/0x150
[  574.863533][ T6610]  proc_fail_nth_read+0x1e9/0x250
[  574.863571][ T6610]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  574.863583][ T6610]  ? rw_verify_area+0x243/0x630
[  574.863591][ T6610]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  574.863600][ T6610]  vfs_read+0x1f8/0xb40
[  574.863608][ T6610]  ? fdget_pos+0x254/0x320
[  574.863623][ T6610]  ? __pfx___mutex_lock+0x10/0x10
[  574.863637][ T6610]  ? __pfx_vfs_read+0x10/0x10
[  574.863646][ T6610]  ? do_sys_openat2+0x17a/0x1d0
[  574.863663][ T6610]  ? __fget_files+0x2a/0x410
[  574.863678][ T6610]  ? __fget_files+0x395/0x410
[  574.863692][ T6610]  ? __fget_files+0x2a/0x410
[  574.863711][ T6610]  ksys_read+0x18f/0x2b0
[  574.863723][ T6610]  ? __pfx_ksys_read+0x10/0x10
[  574.863734][ T6610]  ? do_syscall_64+0x100/0x230
[  574.863745][ T6610]  ? do_syscall_64+0xb6/0x230
[  574.863757][ T6610]  do_syscall_64+0xf3/0x230
[  574.863766][ T6610]  ? clear_bhb_loop+0x35/0x90
[  574.863783][ T6610]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  574.863797][ T6610] RIP: 0033:0x7f3ec898bb7c
[  574.863807][ T6610] 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
[  574.863816][ T6610] RSP: 002b:00007f3ec9749030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  574.863829][ T6610] RAX: ffffffffffffffda RBX: 00007f3ec8ba5fa0 RCX: 00007f3ec898bb7c
[  574.863837][ T6610] RDX: 000000000000000f RSI: 00007f3ec97490a0 RDI: 0000000000000005
[  574.863844][ T6610] RBP: 00007f3ec9749090 R08: 0000000000000000 R09: 0000000000000000
[  574.863850][ T6610] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  574.863857][ T6610] R13: 0000000000000000 R14: 00007f3ec8ba5fa0 R15: 00007ffc7e63dd68
[  574.863873][ T6610]  </TASK>
[  575.061133][ T6612] FAULT_INJECTION: forcing a failure.
[  575.061133][ T6612] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  575.061159][ T6612] CPU: 0 UID: 0 PID: 6612 Comm: syz.4.449 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  575.061172][ T6612] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  575.061180][ T6612] Call Trace:
[  575.061184][ T6612]  <TASK>
[  575.061190][ T6612]  dump_stack_lvl+0x241/0x360
[  575.061210][ T6612]  ? __pfx_dump_stack_lvl+0x10/0x10
[  575.061222][ T6612]  ? __pfx__printk+0x10/0x10
[  575.061236][ T6612]  ? snprintf+0xda/0x120
[  575.061251][ T6612]  should_fail_ex+0x40a/0x550
[  575.061268][ T6612]  _copy_to_user+0x31/0xb0
[  575.061285][ T6612]  simple_read_from_buffer+0xca/0x150
[  575.061301][ T6612]  proc_fail_nth_read+0x1e9/0x250
[  575.061318][ T6612]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  575.061333][ T6612]  ? rw_verify_area+0x243/0x630
[  575.061344][ T6612]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  575.061360][ T6612]  vfs_read+0x1f8/0xb40
[  575.061371][ T6612]  ? fdget_pos+0x254/0x320
[  575.061387][ T6612]  ? __pfx___mutex_lock+0x10/0x10
[  575.061402][ T6612]  ? __pfx_vfs_read+0x10/0x10
[  575.061411][ T6612]  ? do_sys_openat2+0x17a/0x1d0
[  575.061427][ T6612]  ? __fget_files+0x2a/0x410
[  575.061442][ T6612]  ? __fget_files+0x395/0x410
[  575.061455][ T6612]  ? __fget_files+0x2a/0x410
[  575.061474][ T6612]  ksys_read+0x18f/0x2b0
[  575.061487][ T6612]  ? __pfx_ksys_read+0x10/0x10
[  575.061498][ T6612]  ? do_syscall_64+0x100/0x230
[  575.061510][ T6612]  ? do_syscall_64+0xb6/0x230
[  575.061521][ T6612]  do_syscall_64+0xf3/0x230
[  575.061531][ T6612]  ? clear_bhb_loop+0x35/0x90
[  575.061569][ T6612]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  575.061583][ T6612] RIP: 0033:0x7fb61158bb7c
[  575.061594][ T6612] 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
[  575.061625][ T6612] RSP: 002b:00007fb6123e5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  575.061639][ T6612] RAX: ffffffffffffffda RBX: 00007fb6117a5fa0 RCX: 00007fb61158bb7c
[  575.061647][ T6612] RDX: 000000000000000f RSI: 00007fb6123e50a0 RDI: 0000000000000005
[  575.061654][ T6612] RBP: 00007fb6123e5090 R08: 0000000000000000 R09: 0000000000000000
[  575.061661][ T6612] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  575.061668][ T6612] R13: 0000000000000000 R14: 00007fb6117a5fa0 R15: 00007ffef7fc2b28
[  575.061685][ T6612]  </TASK>
[  576.148604][ T6615] FAULT_INJECTION: forcing a failure.
[  576.148604][ T6615] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  576.148631][ T6615] CPU: 0 UID: 0 PID: 6615 Comm: syz.6.450 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  576.148643][ T6615] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  576.148650][ T6615] Call Trace:
[  576.148655][ T6615]  <TASK>
[  576.148660][ T6615]  dump_stack_lvl+0x241/0x360
[  576.148679][ T6615]  ? __pfx_dump_stack_lvl+0x10/0x10
[  576.148691][ T6615]  ? __pfx__printk+0x10/0x10
[  576.148705][ T6615]  ? snprintf+0xda/0x120
[  576.148720][ T6615]  should_fail_ex+0x40a/0x550
[  576.148740][ T6615]  _copy_to_user+0x31/0xb0
[  576.148756][ T6615]  simple_read_from_buffer+0xca/0x150
[  576.148773][ T6615]  proc_fail_nth_read+0x1e9/0x250
[  576.148789][ T6615]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  576.148806][ T6615]  ? rw_verify_area+0x243/0x630
[  576.148818][ T6615]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  576.148832][ T6615]  vfs_read+0x1f8/0xb40
[  576.148844][ T6615]  ? fdget_pos+0x254/0x320
[  576.148860][ T6615]  ? __pfx___mutex_lock+0x10/0x10
[  576.148875][ T6615]  ? __pfx_vfs_read+0x10/0x10
[  576.148885][ T6615]  ? do_sys_openat2+0x17a/0x1d0
[  576.148901][ T6615]  ? __fget_files+0x2a/0x410
[  576.148916][ T6615]  ? __fget_files+0x395/0x410
[  576.148929][ T6615]  ? __fget_files+0x2a/0x410
[  576.148948][ T6615]  ksys_read+0x18f/0x2b0
[  576.148960][ T6615]  ? __pfx_ksys_read+0x10/0x10
[  576.148971][ T6615]  ? do_syscall_64+0x100/0x230
[  576.148983][ T6615]  ? do_syscall_64+0xb6/0x230
[  576.148994][ T6615]  do_syscall_64+0xf3/0x230
[  576.149004][ T6615]  ? clear_bhb_loop+0x35/0x90
[  576.149027][ T6615]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  576.149039][ T6615] RIP: 0033:0x7fe53838bb7c
[  576.149050][ T6615] 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
[  576.149059][ T6615] RSP: 002b:00007fe5392c0030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  576.149073][ T6615] RAX: ffffffffffffffda RBX: 00007fe5385a5fa0 RCX: 00007fe53838bb7c
[  576.149080][ T6615] RDX: 000000000000000f RSI: 00007fe5392c00a0 RDI: 0000000000000005
[  576.149086][ T6615] RBP: 00007fe5392c0090 R08: 0000000000000000 R09: 0000000000000000
[  576.149093][ T6615] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  576.149099][ T6615] R13: 0000000000000000 R14: 00007fe5385a5fa0 R15: 00007fff4c5dba98
[  576.149115][ T6615]  </TASK>
[  576.203609][ T6616] FAULT_INJECTION: forcing a failure.
[  576.203609][ T6616] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  576.203634][ T6616] CPU: 0 UID: 0 PID: 6616 Comm: syz.5.451 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  576.203646][ T6616] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  576.203652][ T6616] Call Trace:
[  576.203656][ T6616]  <TASK>
[  576.203661][ T6616]  dump_stack_lvl+0x241/0x360
[  576.203679][ T6616]  ? __pfx_dump_stack_lvl+0x10/0x10
[  576.203690][ T6616]  ? __pfx__printk+0x10/0x10
[  576.203703][ T6616]  ? snprintf+0xda/0x120
[  576.203719][ T6616]  should_fail_ex+0x40a/0x550
[  576.203738][ T6616]  _copy_to_user+0x31/0xb0
[  576.203754][ T6616]  simple_read_from_buffer+0xca/0x150
[  576.203771][ T6616]  proc_fail_nth_read+0x1e9/0x250
[  576.203787][ T6616]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  576.203803][ T6616]  ? rw_verify_area+0x243/0x630
[  576.203814][ T6616]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  576.203829][ T6616]  vfs_read+0x1f8/0xb40
[  576.203842][ T6616]  ? fdget_pos+0x254/0x320
[  576.203859][ T6616]  ? __pfx___mutex_lock+0x10/0x10
[  576.203875][ T6616]  ? __pfx_vfs_read+0x10/0x10
[  576.203885][ T6616]  ? do_sys_openat2+0x17a/0x1d0
[  576.203902][ T6616]  ? __fget_files+0x2a/0x410
[  576.203916][ T6616]  ? __fget_files+0x395/0x410
[  576.203929][ T6616]  ? __fget_files+0x2a/0x410
[  576.203948][ T6616]  ksys_read+0x18f/0x2b0
[  576.203961][ T6616]  ? __pfx_ksys_read+0x10/0x10
[  576.203973][ T6616]  ? do_syscall_64+0x100/0x230
[  576.203986][ T6616]  ? do_syscall_64+0xb6/0x230
[  576.203996][ T6616]  do_syscall_64+0xf3/0x230
[  576.204006][ T6616]  ? clear_bhb_loop+0x35/0x90
[  576.204033][ T6616]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  576.204049][ T6616] RIP: 0033:0x7f12abd8bb7c
[  576.204061][ T6616] 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
[  576.204070][ T6616] RSP: 002b:00007f12acc94030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  576.204084][ T6616] RAX: ffffffffffffffda RBX: 00007f12abfa5fa0 RCX: 00007f12abd8bb7c
[  576.204092][ T6616] RDX: 000000000000000f RSI: 00007f12acc940a0 RDI: 0000000000000005
[  576.204099][ T6616] RBP: 00007f12acc94090 R08: 0000000000000000 R09: 0000000000000000
[  576.204106][ T6616] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  576.204112][ T6616] R13: 0000000000000000 R14: 00007f12abfa5fa0 R15: 00007ffefc4051c8
[  576.204128][ T6616]  </TASK>
[  576.606042][ T6618] FAULT_INJECTION: forcing a failure.
[  576.606042][ T6618] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  576.606060][ T6618] CPU: 0 UID: 0 PID: 6618 Comm: syz.2.452 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  576.606068][ T6618] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  576.606074][ T6618] Call Trace:
[  576.606077][ T6618]  <TASK>
[  576.606083][ T6618]  dump_stack_lvl+0x241/0x360
[  576.606101][ T6618]  ? __pfx_dump_stack_lvl+0x10/0x10
[  576.606113][ T6618]  ? __pfx__printk+0x10/0x10
[  576.606128][ T6618]  ? snprintf+0xda/0x120
[  576.606144][ T6618]  should_fail_ex+0x40a/0x550
[  576.606163][ T6618]  _copy_to_user+0x31/0xb0
[  576.606174][ T6618]  simple_read_from_buffer+0xca/0x150
[  576.606185][ T6618]  proc_fail_nth_read+0x1e9/0x250
[  576.606196][ T6618]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  576.606206][ T6618]  ? rw_verify_area+0x243/0x630
[  576.606214][ T6618]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  576.606223][ T6618]  vfs_read+0x1f8/0xb40
[  576.606230][ T6618]  ? fdget_pos+0x254/0x320
[  576.606242][ T6618]  ? __pfx___mutex_lock+0x10/0x10
[  576.606253][ T6618]  ? __pfx_vfs_read+0x10/0x10
[  576.606259][ T6618]  ? do_sys_openat2+0x17a/0x1d0
[  576.606271][ T6618]  ? __fget_files+0x2a/0x410
[  576.606285][ T6618]  ? __fget_files+0x395/0x410
[  576.606298][ T6618]  ? __fget_files+0x2a/0x410
[  576.606318][ T6618]  ksys_read+0x18f/0x2b0
[  576.606330][ T6618]  ? __pfx_ksys_read+0x10/0x10
[  576.606342][ T6618]  ? do_syscall_64+0x100/0x230
[  576.606354][ T6618]  ? do_syscall_64+0xb6/0x230
[  576.606361][ T6618]  do_syscall_64+0xf3/0x230
[  576.606367][ T6618]  ? clear_bhb_loop+0x35/0x90
[  576.606378][ T6618]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  576.606387][ T6618] RIP: 0033:0x7f7f4038bb7c
[  576.606394][ T6618] 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
[  576.606401][ T6618] RSP: 002b:00007f7f41145030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  576.606410][ T6618] RAX: ffffffffffffffda RBX: 00007f7f405a5fa0 RCX: 00007f7f4038bb7c
[  576.606415][ T6618] RDX: 000000000000000f RSI: 00007f7f411450a0 RDI: 0000000000000005
[  576.606419][ T6618] RBP: 00007f7f41145090 R08: 0000000000000000 R09: 0000000000000000
[  576.606424][ T6618] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  576.606428][ T6618] R13: 0000000000000000 R14: 00007f7f405a5fa0 R15: 00007fff34abd738
[  576.606438][ T6618]  </TASK>
[  576.768755][ T6620] FAULT_INJECTION: forcing a failure.
[  576.768755][ T6620] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  576.768780][ T6620] CPU: 0 UID: 0 PID: 6620 Comm: syz.3.453 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  576.768792][ T6620] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  576.768799][ T6620] Call Trace:
[  576.768803][ T6620]  <TASK>
[  576.768808][ T6620]  dump_stack_lvl+0x241/0x360
[  576.768826][ T6620]  ? __pfx_dump_stack_lvl+0x10/0x10
[  576.768837][ T6620]  ? __pfx__printk+0x10/0x10
[  576.768852][ T6620]  ? snprintf+0xda/0x120
[  576.768866][ T6620]  should_fail_ex+0x40a/0x550
[  576.768885][ T6620]  _copy_to_user+0x31/0xb0
[  576.768900][ T6620]  simple_read_from_buffer+0xca/0x150
[  576.768917][ T6620]  proc_fail_nth_read+0x1e9/0x250
[  576.768934][ T6620]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  576.768949][ T6620]  ? rw_verify_area+0x243/0x630
[  576.768961][ T6620]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  576.768975][ T6620]  vfs_read+0x1f8/0xb40
[  576.768987][ T6620]  ? fdget_pos+0x254/0x320
[  576.769002][ T6620]  ? __pfx___mutex_lock+0x10/0x10
[  576.769023][ T6620]  ? __pfx_vfs_read+0x10/0x10
[  576.769033][ T6620]  ? do_sys_openat2+0x17a/0x1d0
[  576.769049][ T6620]  ? __fget_files+0x2a/0x410
[  576.769064][ T6620]  ? __fget_files+0x395/0x410
[  576.769077][ T6620]  ? __fget_files+0x2a/0x410
[  576.769097][ T6620]  ksys_read+0x18f/0x2b0
[  576.769109][ T6620]  ? __pfx_ksys_read+0x10/0x10
[  576.769121][ T6620]  ? do_syscall_64+0x100/0x230
[  576.769133][ T6620]  ? do_syscall_64+0xb6/0x230
[  576.769144][ T6620]  do_syscall_64+0xf3/0x230
[  576.769155][ T6620]  ? clear_bhb_loop+0x35/0x90
[  576.769171][ T6620]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  576.769184][ T6620] RIP: 0033:0x7fa97398bb7c
[  576.769195][ T6620] 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
[  576.769204][ T6620] RSP: 002b:00007fa9747b5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  576.769216][ T6620] RAX: ffffffffffffffda RBX: 00007fa973ba5fa0 RCX: 00007fa97398bb7c
[  576.769224][ T6620] RDX: 000000000000000f RSI: 00007fa9747b50a0 RDI: 0000000000000005
[  576.769231][ T6620] RBP: 00007fa9747b5090 R08: 0000000000000000 R09: 0000000000000000
[  576.769238][ T6620] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  576.769245][ T6620] R13: 0000000000000000 R14: 00007fa973ba5fa0 R15: 00007ffe19e290f8
[  576.769260][ T6620]  </TASK>
[  576.921642][ T6622] FAULT_INJECTION: forcing a failure.
[  576.921642][ T6622] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  576.921667][ T6622] CPU: 0 UID: 0 PID: 6622 Comm: syz.1.454 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  576.921678][ T6622] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  576.921686][ T6622] Call Trace:
[  576.921690][ T6622]  <TASK>
[  576.921695][ T6622]  dump_stack_lvl+0x241/0x360
[  576.921713][ T6622]  ? __pfx_dump_stack_lvl+0x10/0x10
[  576.921724][ T6622]  ? __pfx__printk+0x10/0x10
[  576.921738][ T6622]  ? snprintf+0xda/0x120
[  576.921752][ T6622]  should_fail_ex+0x40a/0x550
[  576.921770][ T6622]  _copy_to_user+0x31/0xb0
[  576.921785][ T6622]  simple_read_from_buffer+0xca/0x150
[  576.921800][ T6622]  proc_fail_nth_read+0x1e9/0x250
[  576.921816][ T6622]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  576.921831][ T6622]  ? rw_verify_area+0x243/0x630
[  576.921841][ T6622]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  576.921854][ T6622]  vfs_read+0x1f8/0xb40
[  576.921867][ T6622]  ? fdget_pos+0x254/0x320
[  576.921882][ T6622]  ? __pfx___mutex_lock+0x10/0x10
[  576.921897][ T6622]  ? __pfx_vfs_read+0x10/0x10
[  576.921905][ T6622]  ? do_sys_openat2+0x17a/0x1d0
[  576.921921][ T6622]  ? __fget_files+0x2a/0x410
[  576.921935][ T6622]  ? __fget_files+0x395/0x410
[  576.921948][ T6622]  ? __fget_files+0x2a/0x410
[  576.921966][ T6622]  ksys_read+0x18f/0x2b0
[  576.921978][ T6622]  ? __pfx_ksys_read+0x10/0x10
[  576.921989][ T6622]  ? do_syscall_64+0x100/0x230
[  576.922008][ T6622]  ? do_syscall_64+0xb6/0x230
[  576.922019][ T6622]  do_syscall_64+0xf3/0x230
[  576.922028][ T6622]  ? clear_bhb_loop+0x35/0x90
[  576.922045][ T6622]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  576.922059][ T6622] RIP: 0033:0x7f3ec898bb7c
[  576.922070][ T6622] 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
[  576.922079][ T6622] RSP: 002b:00007f3ec9749030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  576.922092][ T6622] RAX: ffffffffffffffda RBX: 00007f3ec8ba5fa0 RCX: 00007f3ec898bb7c
[  576.922100][ T6622] RDX: 000000000000000f RSI: 00007f3ec97490a0 RDI: 0000000000000005
[  576.922107][ T6622] RBP: 00007f3ec9749090 R08: 0000000000000000 R09: 0000000000000000
[  576.922113][ T6622] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  576.922120][ T6622] R13: 0000000000000000 R14: 00007f3ec8ba5fa0 R15: 00007ffc7e63dd68
[  576.922136][ T6622]  </TASK>
[  577.088644][ T6624] FAULT_INJECTION: forcing a failure.
[  577.088644][ T6624] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  577.088669][ T6624] CPU: 0 UID: 0 PID: 6624 Comm: syz.4.455 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  577.088682][ T6624] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  577.088688][ T6624] Call Trace:
[  577.088693][ T6624]  <TASK>
[  577.088698][ T6624]  dump_stack_lvl+0x241/0x360
[  577.088716][ T6624]  ? __pfx_dump_stack_lvl+0x10/0x10
[  577.088727][ T6624]  ? __pfx__printk+0x10/0x10
[  577.088742][ T6624]  ? snprintf+0xda/0x120
[  577.088757][ T6624]  should_fail_ex+0x40a/0x550
[  577.088776][ T6624]  _copy_to_user+0x31/0xb0
[  577.088792][ T6624]  simple_read_from_buffer+0xca/0x150
[  577.088808][ T6624]  proc_fail_nth_read+0x1e9/0x250
[  577.088824][ T6624]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  577.088840][ T6624]  ? rw_verify_area+0x243/0x630
[  577.088852][ T6624]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  577.088866][ T6624]  vfs_read+0x1f8/0xb40
[  577.088879][ T6624]  ? fdget_pos+0x254/0x320
[  577.088893][ T6624]  ? __pfx___mutex_lock+0x10/0x10
[  577.088910][ T6624]  ? __pfx_vfs_read+0x10/0x10
[  577.088919][ T6624]  ? do_sys_openat2+0x17a/0x1d0
[  577.088935][ T6624]  ? __fget_files+0x2a/0x410
[  577.088950][ T6624]  ? __fget_files+0x395/0x410
[  577.088964][ T6624]  ? __fget_files+0x2a/0x410
[  577.088984][ T6624]  ksys_read+0x18f/0x2b0
[  577.088996][ T6624]  ? __pfx_ksys_read+0x10/0x10
[  577.089016][ T6624]  ? do_syscall_64+0x100/0x230
[  577.089027][ T6624]  ? do_syscall_64+0xb6/0x230
[  577.089039][ T6624]  do_syscall_64+0xf3/0x230
[  577.089049][ T6624]  ? clear_bhb_loop+0x35/0x90
[  577.089066][ T6624]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  577.089080][ T6624] RIP: 0033:0x7fb61158bb7c
[  577.089091][ T6624] 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
[  577.089101][ T6624] RSP: 002b:00007fb6123e5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  577.089115][ T6624] RAX: ffffffffffffffda RBX: 00007fb6117a5fa0 RCX: 00007fb61158bb7c
[  577.089123][ T6624] RDX: 000000000000000f RSI: 00007fb6123e50a0 RDI: 0000000000000005
[  577.089129][ T6624] RBP: 00007fb6123e5090 R08: 0000000000000000 R09: 0000000000000000
[  577.089135][ T6624] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  577.089142][ T6624] R13: 0000000000000000 R14: 00007fb6117a5fa0 R15: 00007ffef7fc2b28
[  577.089159][ T6624]  </TASK>
[  578.229884][ T6628] FAULT_INJECTION: forcing a failure.
[  578.229884][ T6628] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  578.229908][ T6628] CPU: 0 UID: 0 PID: 6628 Comm: syz.5.457 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  578.229920][ T6628] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  578.229927][ T6628] Call Trace:
[  578.229932][ T6628]  <TASK>
[  578.229937][ T6628]  dump_stack_lvl+0x241/0x360
[  578.229956][ T6628]  ? __pfx_dump_stack_lvl+0x10/0x10
[  578.229968][ T6628]  ? __pfx__printk+0x10/0x10
[  578.229981][ T6628]  ? snprintf+0xda/0x120
[  578.229996][ T6628]  should_fail_ex+0x40a/0x550
[  578.230014][ T6628]  _copy_to_user+0x31/0xb0
[  578.230030][ T6628]  simple_read_from_buffer+0xca/0x150
[  578.230046][ T6628]  proc_fail_nth_read+0x1e9/0x250
[  578.230069][ T6628]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  578.230085][ T6628]  ? rw_verify_area+0x243/0x630
[  578.230096][ T6628]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  578.230111][ T6628]  vfs_read+0x1f8/0xb40
[  578.230122][ T6628]  ? fdget_pos+0x254/0x320
[  578.230138][ T6628]  ? __pfx___mutex_lock+0x10/0x10
[  578.230154][ T6628]  ? __pfx_vfs_read+0x10/0x10
[  578.230162][ T6628]  ? do_sys_openat2+0x17a/0x1d0
[  578.230178][ T6628]  ? __fget_files+0x2a/0x410
[  578.230192][ T6628]  ? __fget_files+0x395/0x410
[  578.230205][ T6628]  ? __fget_files+0x2a/0x410
[  578.230224][ T6628]  ksys_read+0x18f/0x2b0
[  578.230237][ T6628]  ? __pfx_ksys_read+0x10/0x10
[  578.230248][ T6628]  ? do_syscall_64+0x100/0x230
[  578.230259][ T6628]  ? do_syscall_64+0xb6/0x230
[  578.230271][ T6628]  do_syscall_64+0xf3/0x230
[  578.230281][ T6628]  ? clear_bhb_loop+0x35/0x90
[  578.230298][ T6628]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  578.230312][ T6628] RIP: 0033:0x7f12abd8bb7c
[  578.230323][ T6628] 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
[  578.230332][ T6628] RSP: 002b:00007f12acc94030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  578.230344][ T6628] RAX: ffffffffffffffda RBX: 00007f12abfa5fa0 RCX: 00007f12abd8bb7c
[  578.230353][ T6628] RDX: 000000000000000f RSI: 00007f12acc940a0 RDI: 0000000000000005
[  578.230360][ T6628] RBP: 00007f12acc94090 R08: 0000000000000000 R09: 0000000000000000
[  578.230367][ T6628] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  578.230373][ T6628] R13: 0000000000000000 R14: 00007f12abfa5fa0 R15: 00007ffefc4051c8
[  578.230388][ T6628]  </TASK>
[  578.278244][ T6627] FAULT_INJECTION: forcing a failure.
[  578.278244][ T6627] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  578.278269][ T6627] CPU: 0 UID: 0 PID: 6627 Comm: syz.6.456 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  578.278281][ T6627] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  578.278288][ T6627] Call Trace:
[  578.278293][ T6627]  <TASK>
[  578.278298][ T6627]  dump_stack_lvl+0x241/0x360
[  578.278316][ T6627]  ? __pfx_dump_stack_lvl+0x10/0x10
[  578.278326][ T6627]  ? __pfx__printk+0x10/0x10
[  578.278339][ T6627]  ? snprintf+0xda/0x120
[  578.278353][ T6627]  should_fail_ex+0x40a/0x550
[  578.278372][ T6627]  _copy_to_user+0x31/0xb0
[  578.278387][ T6627]  simple_read_from_buffer+0xca/0x150
[  578.278402][ T6627]  proc_fail_nth_read+0x1e9/0x250
[  578.278417][ T6627]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  578.278432][ T6627]  ? rw_verify_area+0x243/0x630
[  578.278443][ T6627]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  578.278457][ T6627]  vfs_read+0x1f8/0xb40
[  578.278469][ T6627]  ? fdget_pos+0x254/0x320
[  578.278484][ T6627]  ? __pfx___mutex_lock+0x10/0x10
[  578.278499][ T6627]  ? __pfx_vfs_read+0x10/0x10
[  578.278508][ T6627]  ? do_sys_openat2+0x17a/0x1d0
[  578.278524][ T6627]  ? __fget_files+0x2a/0x410
[  578.278539][ T6627]  ? __fget_files+0x395/0x410
[  578.278551][ T6627]  ? __fget_files+0x2a/0x410
[  578.278571][ T6627]  ksys_read+0x18f/0x2b0
[  578.278584][ T6627]  ? __pfx_ksys_read+0x10/0x10
[  578.278595][ T6627]  ? do_syscall_64+0x100/0x230
[  578.278607][ T6627]  ? do_syscall_64+0xb6/0x230
[  578.278618][ T6627]  do_syscall_64+0xf3/0x230
[  578.278627][ T6627]  ? clear_bhb_loop+0x35/0x90
[  578.278643][ T6627]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  578.278656][ T6627] RIP: 0033:0x7fe53838bb7c
[  578.278666][ T6627] 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
[  578.278675][ T6627] RSP: 002b:00007fe5392c0030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  578.278688][ T6627] RAX: ffffffffffffffda RBX: 00007fe5385a5fa0 RCX: 00007fe53838bb7c
[  578.278696][ T6627] RDX: 000000000000000f RSI: 00007fe5392c00a0 RDI: 0000000000000005
[  578.278704][ T6627] RBP: 00007fe5392c0090 R08: 0000000000000000 R09: 0000000000000000
[  578.278710][ T6627] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  578.278717][ T6627] R13: 0000000000000000 R14: 00007fe5385a5fa0 R15: 00007fff4c5dba98
[  578.278732][ T6627]  </TASK>
[  578.668671][ T6630] FAULT_INJECTION: forcing a failure.
[  578.668671][ T6630] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  578.668695][ T6630] CPU: 0 UID: 0 PID: 6630 Comm: syz.2.458 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  578.668707][ T6630] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  578.668715][ T6630] Call Trace:
[  578.668720][ T6630]  <TASK>
[  578.668725][ T6630]  dump_stack_lvl+0x241/0x360
[  578.668743][ T6630]  ? __pfx_dump_stack_lvl+0x10/0x10
[  578.668755][ T6630]  ? __pfx__printk+0x10/0x10
[  578.668769][ T6630]  ? snprintf+0xda/0x120
[  578.668785][ T6630]  should_fail_ex+0x40a/0x550
[  578.668804][ T6630]  _copy_to_user+0x31/0xb0
[  578.668820][ T6630]  simple_read_from_buffer+0xca/0x150
[  578.668836][ T6630]  proc_fail_nth_read+0x1e9/0x250
[  578.668853][ T6630]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  578.668869][ T6630]  ? rw_verify_area+0x243/0x630
[  578.668880][ T6630]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  578.668894][ T6630]  vfs_read+0x1f8/0xb40
[  578.668905][ T6630]  ? fdget_pos+0x254/0x320
[  578.668921][ T6630]  ? __pfx___mutex_lock+0x10/0x10
[  578.668937][ T6630]  ? __pfx_vfs_read+0x10/0x10
[  578.668945][ T6630]  ? do_sys_openat2+0x17a/0x1d0
[  578.668961][ T6630]  ? __fget_files+0x2a/0x410
[  578.668975][ T6630]  ? __fget_files+0x395/0x410
[  578.668988][ T6630]  ? __fget_files+0x2a/0x410
[  578.669008][ T6630]  ksys_read+0x18f/0x2b0
[  578.669020][ T6630]  ? __pfx_ksys_read+0x10/0x10
[  578.669030][ T6630]  ? do_syscall_64+0x100/0x230
[  578.669040][ T6630]  ? do_syscall_64+0xb6/0x230
[  578.669059][ T6630]  do_syscall_64+0xf3/0x230
[  578.669069][ T6630]  ? clear_bhb_loop+0x35/0x90
[  578.669086][ T6630]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  578.669100][ T6630] RIP: 0033:0x7f7f4038bb7c
[  578.669110][ T6630] 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
[  578.669120][ T6630] RSP: 002b:00007f7f41145030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  578.669133][ T6630] RAX: ffffffffffffffda RBX: 00007f7f405a5fa0 RCX: 00007f7f4038bb7c
[  578.669141][ T6630] RDX: 000000000000000f RSI: 00007f7f411450a0 RDI: 0000000000000005
[  578.669148][ T6630] RBP: 00007f7f41145090 R08: 0000000000000000 R09: 0000000000000000
[  578.669155][ T6630] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  578.669161][ T6630] R13: 0000000000000000 R14: 00007f7f405a5fa0 R15: 00007fff34abd738
[  578.669177][ T6630]  </TASK>
[  578.835081][ T6632] FAULT_INJECTION: forcing a failure.
[  578.835081][ T6632] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  578.835104][ T6632] CPU: 0 UID: 0 PID: 6632 Comm: syz.3.459 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  578.835117][ T6632] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  578.835123][ T6632] Call Trace:
[  578.835127][ T6632]  <TASK>
[  578.835132][ T6632]  dump_stack_lvl+0x241/0x360
[  578.835151][ T6632]  ? __pfx_dump_stack_lvl+0x10/0x10
[  578.835164][ T6632]  ? __pfx__printk+0x10/0x10
[  578.835178][ T6632]  ? snprintf+0xda/0x120
[  578.835193][ T6632]  should_fail_ex+0x40a/0x550
[  578.835212][ T6632]  _copy_to_user+0x31/0xb0
[  578.835228][ T6632]  simple_read_from_buffer+0xca/0x150
[  578.835245][ T6632]  proc_fail_nth_read+0x1e9/0x250
[  578.835260][ T6632]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  578.835276][ T6632]  ? rw_verify_area+0x243/0x630
[  578.835286][ T6632]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  578.835308][ T6632]  vfs_read+0x1f8/0xb40
[  578.835319][ T6632]  ? fdget_pos+0x254/0x320
[  578.835335][ T6632]  ? __pfx___mutex_lock+0x10/0x10
[  578.835349][ T6632]  ? __pfx_vfs_read+0x10/0x10
[  578.835358][ T6632]  ? do_sys_openat2+0x17a/0x1d0
[  578.835375][ T6632]  ? __fget_files+0x2a/0x410
[  578.835389][ T6632]  ? __fget_files+0x395/0x410
[  578.835402][ T6632]  ? __fget_files+0x2a/0x410
[  578.835421][ T6632]  ksys_read+0x18f/0x2b0
[  578.835434][ T6632]  ? __pfx_ksys_read+0x10/0x10
[  578.835445][ T6632]  ? do_syscall_64+0x100/0x230
[  578.835456][ T6632]  ? do_syscall_64+0xb6/0x230
[  578.835468][ T6632]  do_syscall_64+0xf3/0x230
[  578.835477][ T6632]  ? clear_bhb_loop+0x35/0x90
[  578.835492][ T6632]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  578.835505][ T6632] RIP: 0033:0x7fa97398bb7c
[  578.835516][ T6632] 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
[  578.835525][ T6632] RSP: 002b:00007fa9747b5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  578.835535][ T6632] RAX: ffffffffffffffda RBX: 00007fa973ba5fa0 RCX: 00007fa97398bb7c
[  578.835541][ T6632] RDX: 000000000000000f RSI: 00007fa9747b50a0 RDI: 0000000000000005
[  578.835546][ T6632] RBP: 00007fa9747b5090 R08: 0000000000000000 R09: 0000000000000000
[  578.835550][ T6632] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  578.835555][ T6632] R13: 0000000000000000 R14: 00007fa973ba5fa0 R15: 00007ffe19e290f8
[  578.835565][ T6632]  </TASK>
[  579.075368][ T6634] FAULT_INJECTION: forcing a failure.
[  579.075368][ T6634] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  579.075392][ T6634] CPU: 0 UID: 0 PID: 6634 Comm: syz.1.460 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  579.075404][ T6634] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  579.075410][ T6634] Call Trace:
[  579.075414][ T6634]  <TASK>
[  579.075419][ T6634]  dump_stack_lvl+0x241/0x360
[  579.075438][ T6634]  ? __pfx_dump_stack_lvl+0x10/0x10
[  579.075449][ T6634]  ? __pfx__printk+0x10/0x10
[  579.075462][ T6634]  ? snprintf+0xda/0x120
[  579.075478][ T6634]  should_fail_ex+0x40a/0x550
[  579.075496][ T6634]  _copy_to_user+0x31/0xb0
[  579.075513][ T6634]  simple_read_from_buffer+0xca/0x150
[  579.075529][ T6634]  proc_fail_nth_read+0x1e9/0x250
[  579.075546][ T6634]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  579.075560][ T6634]  ? rw_verify_area+0x243/0x630
[  579.075571][ T6634]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  579.075586][ T6634]  vfs_read+0x1f8/0xb40
[  579.075598][ T6634]  ? fdget_pos+0x254/0x320
[  579.075612][ T6634]  ? __pfx___mutex_lock+0x10/0x10
[  579.075628][ T6634]  ? __pfx_vfs_read+0x10/0x10
[  579.075638][ T6634]  ? do_sys_openat2+0x17a/0x1d0
[  579.075654][ T6634]  ? __fget_files+0x2a/0x410
[  579.075669][ T6634]  ? __fget_files+0x395/0x410
[  579.075681][ T6634]  ? __fget_files+0x2a/0x410
[  579.075694][ T6634]  ksys_read+0x18f/0x2b0
[  579.075704][ T6634]  ? __pfx_ksys_read+0x10/0x10
[  579.075714][ T6634]  ? do_syscall_64+0x100/0x230
[  579.075726][ T6634]  ? do_syscall_64+0xb6/0x230
[  579.075737][ T6634]  do_syscall_64+0xf3/0x230
[  579.075745][ T6634]  ? clear_bhb_loop+0x35/0x90
[  579.075763][ T6634]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  579.075777][ T6634] RIP: 0033:0x7f3ec898bb7c
[  579.075789][ T6634] 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
[  579.075798][ T6634] RSP: 002b:00007f3ec9749030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  579.075811][ T6634] RAX: ffffffffffffffda RBX: 00007f3ec8ba5fa0 RCX: 00007f3ec898bb7c
[  579.075819][ T6634] RDX: 000000000000000f RSI: 00007f3ec97490a0 RDI: 0000000000000005
[  579.075826][ T6634] RBP: 00007f3ec9749090 R08: 0000000000000000 R09: 0000000000000000
[  579.075832][ T6634] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  579.075839][ T6634] R13: 0000000000000000 R14: 00007f3ec8ba5fa0 R15: 00007ffc7e63dd68
[  579.075855][ T6634]  </TASK>
[  579.208589][ T6636] FAULT_INJECTION: forcing a failure.
[  579.208589][ T6636] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  579.208612][ T6636] CPU: 0 UID: 0 PID: 6636 Comm: syz.4.461 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  579.208624][ T6636] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  579.208631][ T6636] Call Trace:
[  579.208635][ T6636]  <TASK>
[  579.208641][ T6636]  dump_stack_lvl+0x241/0x360
[  579.208658][ T6636]  ? __pfx_dump_stack_lvl+0x10/0x10
[  579.208670][ T6636]  ? __pfx__printk+0x10/0x10
[  579.208683][ T6636]  ? snprintf+0xda/0x120
[  579.208698][ T6636]  should_fail_ex+0x40a/0x550
[  579.208717][ T6636]  _copy_to_user+0x31/0xb0
[  579.208733][ T6636]  simple_read_from_buffer+0xca/0x150
[  579.208750][ T6636]  proc_fail_nth_read+0x1e9/0x250
[  579.208767][ T6636]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  579.208782][ T6636]  ? rw_verify_area+0x243/0x630
[  579.208793][ T6636]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  579.208807][ T6636]  vfs_read+0x1f8/0xb40
[  579.208818][ T6636]  ? fdget_pos+0x254/0x320
[  579.208833][ T6636]  ? __pfx___mutex_lock+0x10/0x10
[  579.208848][ T6636]  ? __pfx_vfs_read+0x10/0x10
[  579.208857][ T6636]  ? do_sys_openat2+0x17a/0x1d0
[  579.208872][ T6636]  ? __fget_files+0x2a/0x410
[  579.208887][ T6636]  ? __fget_files+0x395/0x410
[  579.208900][ T6636]  ? __fget_files+0x2a/0x410
[  579.208919][ T6636]  ksys_read+0x18f/0x2b0
[  579.208932][ T6636]  ? __pfx_ksys_read+0x10/0x10
[  579.208943][ T6636]  ? do_syscall_64+0x100/0x230
[  579.208955][ T6636]  ? do_syscall_64+0xb6/0x230
[  579.208966][ T6636]  do_syscall_64+0xf3/0x230
[  579.208974][ T6636]  ? clear_bhb_loop+0x35/0x90
[  579.208985][ T6636]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  579.208995][ T6636] RIP: 0033:0x7fb61158bb7c
[  579.209002][ T6636] 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
[  579.209008][ T6636] RSP: 002b:00007fb6123e5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  579.209018][ T6636] RAX: ffffffffffffffda RBX: 00007fb6117a5fa0 RCX: 00007fb61158bb7c
[  579.209026][ T6636] RDX: 000000000000000f RSI: 00007fb6123e50a0 RDI: 0000000000000005
[  579.209032][ T6636] RBP: 00007fb6123e5090 R08: 0000000000000000 R09: 0000000000000000
[  579.209038][ T6636] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  579.209044][ T6636] R13: 0000000000000000 R14: 00007fb6117a5fa0 R15: 00007ffef7fc2b28
[  579.209059][ T6636]  </TASK>
[  580.286198][ T6638] FAULT_INJECTION: forcing a failure.
[  580.286198][ T6638] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  580.286223][ T6638] CPU: 0 UID: 0 PID: 6638 Comm: syz.5.462 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  580.286235][ T6638] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  580.286242][ T6638] Call Trace:
[  580.286245][ T6638]  <TASK>
[  580.286249][ T6638]  dump_stack_lvl+0x241/0x360
[  580.286264][ T6638]  ? __pfx_dump_stack_lvl+0x10/0x10
[  580.286273][ T6638]  ? __pfx__printk+0x10/0x10
[  580.286282][ T6638]  ? snprintf+0xda/0x120
[  580.286292][ T6638]  should_fail_ex+0x40a/0x550
[  580.286305][ T6638]  _copy_to_user+0x31/0xb0
[  580.286317][ T6638]  simple_read_from_buffer+0xca/0x150
[  580.286333][ T6638]  proc_fail_nth_read+0x1e9/0x250
[  580.286349][ T6638]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  580.286365][ T6638]  ? rw_verify_area+0x243/0x630
[  580.286376][ T6638]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  580.286390][ T6638]  vfs_read+0x1f8/0xb40
[  580.286402][ T6638]  ? fdget_pos+0x254/0x320
[  580.286417][ T6638]  ? __pfx___mutex_lock+0x10/0x10
[  580.286432][ T6638]  ? __pfx_vfs_read+0x10/0x10
[  580.286442][ T6638]  ? do_sys_openat2+0x17a/0x1d0
[  580.286458][ T6638]  ? __fget_files+0x2a/0x410
[  580.286473][ T6638]  ? __fget_files+0x395/0x410
[  580.286485][ T6638]  ? __fget_files+0x2a/0x410
[  580.286504][ T6638]  ksys_read+0x18f/0x2b0
[  580.286517][ T6638]  ? __pfx_ksys_read+0x10/0x10
[  580.286528][ T6638]  ? do_syscall_64+0x100/0x230
[  580.286540][ T6638]  ? do_syscall_64+0xb6/0x230
[  580.286551][ T6638]  do_syscall_64+0xf3/0x230
[  580.286561][ T6638]  ? clear_bhb_loop+0x35/0x90
[  580.286578][ T6638]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  580.286591][ T6638] RIP: 0033:0x7f12abd8bb7c
[  580.286601][ T6638] 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
[  580.286611][ T6638] RSP: 002b:00007f12acc94030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  580.286624][ T6638] RAX: ffffffffffffffda RBX: 00007f12abfa5fa0 RCX: 00007f12abd8bb7c
[  580.286632][ T6638] RDX: 000000000000000f RSI: 00007f12acc940a0 RDI: 0000000000000005
[  580.286638][ T6638] RBP: 00007f12acc94090 R08: 0000000000000000 R09: 0000000000000000
[  580.286645][ T6638] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  580.286651][ T6638] R13: 0000000000000000 R14: 00007f12abfa5fa0 R15: 00007ffefc4051c8
[  580.286666][ T6638]  </TASK>
[  580.396766][ T6640] FAULT_INJECTION: forcing a failure.
[  580.396766][ T6640] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  580.396792][ T6640] CPU: 0 UID: 0 PID: 6640 Comm: syz.6.463 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  580.396804][ T6640] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  580.396811][ T6640] Call Trace:
[  580.396815][ T6640]  <TASK>
[  580.396820][ T6640]  dump_stack_lvl+0x241/0x360
[  580.396839][ T6640]  ? __pfx_dump_stack_lvl+0x10/0x10
[  580.396851][ T6640]  ? __pfx__printk+0x10/0x10
[  580.396866][ T6640]  ? snprintf+0xda/0x120
[  580.396880][ T6640]  should_fail_ex+0x40a/0x550
[  580.396898][ T6640]  _copy_to_user+0x31/0xb0
[  580.396913][ T6640]  simple_read_from_buffer+0xca/0x150
[  580.396930][ T6640]  proc_fail_nth_read+0x1e9/0x250
[  580.396945][ T6640]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  580.396960][ T6640]  ? rw_verify_area+0x243/0x630
[  580.396972][ T6640]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  580.396987][ T6640]  vfs_read+0x1f8/0xb40
[  580.396999][ T6640]  ? fdget_pos+0x254/0x320
[  580.397021][ T6640]  ? __pfx___mutex_lock+0x10/0x10
[  580.397036][ T6640]  ? __pfx_vfs_read+0x10/0x10
[  580.397045][ T6640]  ? do_sys_openat2+0x17a/0x1d0
[  580.397062][ T6640]  ? __fget_files+0x2a/0x410
[  580.397076][ T6640]  ? __fget_files+0x395/0x410
[  580.397089][ T6640]  ? __fget_files+0x2a/0x410
[  580.397108][ T6640]  ksys_read+0x18f/0x2b0
[  580.397120][ T6640]  ? __pfx_ksys_read+0x10/0x10
[  580.397132][ T6640]  ? do_syscall_64+0x100/0x230
[  580.397143][ T6640]  ? do_syscall_64+0xb6/0x230
[  580.397154][ T6640]  do_syscall_64+0xf3/0x230
[  580.397163][ T6640]  ? clear_bhb_loop+0x35/0x90
[  580.397180][ T6640]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  580.397194][ T6640] RIP: 0033:0x7fe53838bb7c
[  580.397205][ T6640] 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
[  580.397215][ T6640] RSP: 002b:00007fe5392c0030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  580.397228][ T6640] RAX: ffffffffffffffda RBX: 00007fe5385a5fa0 RCX: 00007fe53838bb7c
[  580.397236][ T6640] RDX: 000000000000000f RSI: 00007fe5392c00a0 RDI: 0000000000000005
[  580.397243][ T6640] RBP: 00007fe5392c0090 R08: 0000000000000000 R09: 0000000000000000
[  580.397251][ T6640] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  580.397258][ T6640] R13: 0000000000000000 R14: 00007fe5385a5fa0 R15: 00007fff4c5dba98
[  580.397275][ T6640]  </TASK>
[  580.788035][ T6642] FAULT_INJECTION: forcing a failure.
[  580.788035][ T6642] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  580.788061][ T6642] CPU: 0 UID: 0 PID: 6642 Comm: syz.2.464 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  580.788073][ T6642] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  580.788080][ T6642] Call Trace:
[  580.788084][ T6642]  <TASK>
[  580.788088][ T6642]  dump_stack_lvl+0x241/0x360
[  580.788107][ T6642]  ? __pfx_dump_stack_lvl+0x10/0x10
[  580.788118][ T6642]  ? __pfx__printk+0x10/0x10
[  580.788132][ T6642]  ? snprintf+0xda/0x120
[  580.788146][ T6642]  should_fail_ex+0x40a/0x550
[  580.788166][ T6642]  _copy_to_user+0x31/0xb0
[  580.788181][ T6642]  simple_read_from_buffer+0xca/0x150
[  580.788197][ T6642]  proc_fail_nth_read+0x1e9/0x250
[  580.788213][ T6642]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  580.788228][ T6642]  ? rw_verify_area+0x243/0x630
[  580.788247][ T6642]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  580.788261][ T6642]  vfs_read+0x1f8/0xb40
[  580.788274][ T6642]  ? fdget_pos+0x254/0x320
[  580.788289][ T6642]  ? __pfx___mutex_lock+0x10/0x10
[  580.788305][ T6642]  ? __pfx_vfs_read+0x10/0x10
[  580.788316][ T6642]  ? do_sys_openat2+0x17a/0x1d0
[  580.788332][ T6642]  ? __fget_files+0x2a/0x410
[  580.788347][ T6642]  ? __fget_files+0x395/0x410
[  580.788361][ T6642]  ? __fget_files+0x2a/0x410
[  580.788380][ T6642]  ksys_read+0x18f/0x2b0
[  580.788394][ T6642]  ? __pfx_ksys_read+0x10/0x10
[  580.788406][ T6642]  ? do_syscall_64+0x100/0x230
[  580.788416][ T6642]  ? do_syscall_64+0xb6/0x230
[  580.788427][ T6642]  do_syscall_64+0xf3/0x230
[  580.788435][ T6642]  ? clear_bhb_loop+0x35/0x90
[  580.788452][ T6642]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  580.788466][ T6642] RIP: 0033:0x7f7f4038bb7c
[  580.788476][ T6642] 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
[  580.788485][ T6642] RSP: 002b:00007f7f41145030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  580.788495][ T6642] RAX: ffffffffffffffda RBX: 00007f7f405a5fa0 RCX: 00007f7f4038bb7c
[  580.788501][ T6642] RDX: 000000000000000f RSI: 00007f7f411450a0 RDI: 0000000000000005
[  580.788505][ T6642] RBP: 00007f7f41145090 R08: 0000000000000000 R09: 0000000000000000
[  580.788510][ T6642] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  580.788514][ T6642] R13: 0000000000000000 R14: 00007f7f405a5fa0 R15: 00007fff34abd738
[  580.788524][ T6642]  </TASK>
[  580.923470][ T6644] FAULT_INJECTION: forcing a failure.
[  580.923470][ T6644] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  580.923495][ T6644] CPU: 0 UID: 0 PID: 6644 Comm: syz.3.465 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  580.923507][ T6644] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  580.923514][ T6644] Call Trace:
[  580.923518][ T6644]  <TASK>
[  580.923523][ T6644]  dump_stack_lvl+0x241/0x360
[  580.923542][ T6644]  ? __pfx_dump_stack_lvl+0x10/0x10
[  580.923553][ T6644]  ? __pfx__printk+0x10/0x10
[  580.923565][ T6644]  ? snprintf+0xda/0x120
[  580.923575][ T6644]  should_fail_ex+0x40a/0x550
[  580.923587][ T6644]  _copy_to_user+0x31/0xb0
[  580.923598][ T6644]  simple_read_from_buffer+0xca/0x150
[  580.923608][ T6644]  proc_fail_nth_read+0x1e9/0x250
[  580.923620][ T6644]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  580.923630][ T6644]  ? rw_verify_area+0x243/0x630
[  580.923637][ T6644]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  580.923650][ T6644]  vfs_read+0x1f8/0xb40
[  580.923661][ T6644]  ? fdget_pos+0x254/0x320
[  580.923675][ T6644]  ? __pfx___mutex_lock+0x10/0x10
[  580.923691][ T6644]  ? __pfx_vfs_read+0x10/0x10
[  580.923700][ T6644]  ? do_sys_openat2+0x17a/0x1d0
[  580.923715][ T6644]  ? __fget_files+0x2a/0x410
[  580.923730][ T6644]  ? __fget_files+0x395/0x410
[  580.923742][ T6644]  ? __fget_files+0x2a/0x410
[  580.923760][ T6644]  ksys_read+0x18f/0x2b0
[  580.923772][ T6644]  ? __pfx_ksys_read+0x10/0x10
[  580.923783][ T6644]  ? do_syscall_64+0x100/0x230
[  580.923793][ T6644]  ? do_syscall_64+0xb6/0x230
[  580.923812][ T6644]  do_syscall_64+0xf3/0x230
[  580.923821][ T6644]  ? clear_bhb_loop+0x35/0x90
[  580.923837][ T6644]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  580.923850][ T6644] RIP: 0033:0x7fa97398bb7c
[  580.923861][ T6644] 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
[  580.923870][ T6644] RSP: 002b:00007fa9747b5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  580.923883][ T6644] RAX: ffffffffffffffda RBX: 00007fa973ba5fa0 RCX: 00007fa97398bb7c
[  580.923890][ T6644] RDX: 000000000000000f RSI: 00007fa9747b50a0 RDI: 0000000000000005
[  580.923896][ T6644] RBP: 00007fa9747b5090 R08: 0000000000000000 R09: 0000000000000000
[  580.923903][ T6644] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  580.923909][ T6644] R13: 0000000000000000 R14: 00007fa973ba5fa0 R15: 00007ffe19e290f8
[  580.923923][ T6644]  </TASK>
[  581.141668][ T6646] FAULT_INJECTION: forcing a failure.
[  581.141668][ T6646] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  581.141692][ T6646] CPU: 0 UID: 0 PID: 6646 Comm: syz.1.466 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  581.141704][ T6646] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  581.141711][ T6646] Call Trace:
[  581.141715][ T6646]  <TASK>
[  581.141720][ T6646]  dump_stack_lvl+0x241/0x360
[  581.141737][ T6646]  ? __pfx_dump_stack_lvl+0x10/0x10
[  581.141749][ T6646]  ? __pfx__printk+0x10/0x10
[  581.141763][ T6646]  ? snprintf+0xda/0x120
[  581.141778][ T6646]  should_fail_ex+0x40a/0x550
[  581.141796][ T6646]  _copy_to_user+0x31/0xb0
[  581.141812][ T6646]  simple_read_from_buffer+0xca/0x150
[  581.141828][ T6646]  proc_fail_nth_read+0x1e9/0x250
[  581.141844][ T6646]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  581.141860][ T6646]  ? rw_verify_area+0x243/0x630
[  581.141870][ T6646]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  581.141885][ T6646]  vfs_read+0x1f8/0xb40
[  581.141896][ T6646]  ? fdget_pos+0x254/0x320
[  581.141910][ T6646]  ? __pfx___mutex_lock+0x10/0x10
[  581.141926][ T6646]  ? __pfx_vfs_read+0x10/0x10
[  581.141934][ T6646]  ? do_sys_openat2+0x17a/0x1d0
[  581.141950][ T6646]  ? __fget_files+0x2a/0x410
[  581.141965][ T6646]  ? __fget_files+0x395/0x410
[  581.141979][ T6646]  ? __fget_files+0x2a/0x410
[  581.141996][ T6646]  ksys_read+0x18f/0x2b0
[  581.142009][ T6646]  ? __pfx_ksys_read+0x10/0x10
[  581.142020][ T6646]  ? do_syscall_64+0x100/0x230
[  581.142033][ T6646]  ? do_syscall_64+0xb6/0x230
[  581.142045][ T6646]  do_syscall_64+0xf3/0x230
[  581.142054][ T6646]  ? clear_bhb_loop+0x35/0x90
[  581.142071][ T6646]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  581.142084][ T6646] RIP: 0033:0x7f3ec898bb7c
[  581.142093][ T6646] 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
[  581.142103][ T6646] RSP: 002b:00007f3ec9749030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  581.142115][ T6646] RAX: ffffffffffffffda RBX: 00007f3ec8ba5fa0 RCX: 00007f3ec898bb7c
[  581.142123][ T6646] RDX: 000000000000000f RSI: 00007f3ec97490a0 RDI: 0000000000000005
[  581.142129][ T6646] RBP: 00007f3ec9749090 R08: 0000000000000000 R09: 0000000000000000
[  581.142136][ T6646] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  581.142143][ T6646] R13: 0000000000000000 R14: 00007f3ec8ba5fa0 R15: 00007ffc7e63dd68
[  581.142158][ T6646]  </TASK>
[  581.251964][ T6648] FAULT_INJECTION: forcing a failure.
[  581.251964][ T6648] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  581.251982][ T6648] CPU: 0 UID: 0 PID: 6648 Comm: syz.4.467 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  581.251993][ T6648] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  581.251997][ T6648] Call Trace:
[  581.252000][ T6648]  <TASK>
[  581.252004][ T6648]  dump_stack_lvl+0x241/0x360
[  581.252019][ T6648]  ? __pfx_dump_stack_lvl+0x10/0x10
[  581.252030][ T6648]  ? __pfx__printk+0x10/0x10
[  581.252043][ T6648]  ? snprintf+0xda/0x120
[  581.252064][ T6648]  should_fail_ex+0x40a/0x550
[  581.252087][ T6648]  _copy_to_user+0x31/0xb0
[  581.252100][ T6648]  simple_read_from_buffer+0xca/0x150
[  581.252115][ T6648]  proc_fail_nth_read+0x1e9/0x250
[  581.252126][ T6648]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  581.252137][ T6648]  ? rw_verify_area+0x243/0x630
[  581.252144][ T6648]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  581.252158][ T6648]  vfs_read+0x1f8/0xb40
[  581.252169][ T6648]  ? fdget_pos+0x254/0x320
[  581.252183][ T6648]  ? __pfx___mutex_lock+0x10/0x10
[  581.252199][ T6648]  ? __pfx_vfs_read+0x10/0x10
[  581.252208][ T6648]  ? do_sys_openat2+0x17a/0x1d0
[  581.252224][ T6648]  ? __fget_files+0x2a/0x410
[  581.252241][ T6648]  ? __fget_files+0x395/0x410
[  581.252251][ T6648]  ? __fget_files+0x2a/0x410
[  581.252266][ T6648]  ksys_read+0x18f/0x2b0
[  581.252275][ T6648]  ? __pfx_ksys_read+0x10/0x10
[  581.252282][ T6648]  ? do_syscall_64+0x100/0x230
[  581.252289][ T6648]  ? do_syscall_64+0xb6/0x230
[  581.252297][ T6648]  do_syscall_64+0xf3/0x230
[  581.252303][ T6648]  ? clear_bhb_loop+0x35/0x90
[  581.252315][ T6648]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  581.252324][ T6648] RIP: 0033:0x7fb61158bb7c
[  581.252331][ T6648] 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
[  581.252338][ T6648] RSP: 002b:00007fb6123e5030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  581.252347][ T6648] RAX: ffffffffffffffda RBX: 00007fb6117a5fa0 RCX: 00007fb61158bb7c
[  581.252352][ T6648] RDX: 000000000000000f RSI: 00007fb6123e50a0 RDI: 0000000000000005
[  581.252357][ T6648] RBP: 00007fb6123e5090 R08: 0000000000000000 R09: 0000000000000000
[  581.252361][ T6648] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  581.252369][ T6648] R13: 0000000000000000 R14: 00007fb6117a5fa0 R15: 00007ffef7fc2b28
[  581.252379][ T6648]  </TASK>
[  581.980255][   T26] INFO: task syz.0.40:5746 blocked for more than 143 seconds.
[  581.980284][   T26]       Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  581.980293][   T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  581.980300][   T26] task:syz.0.40        state:D stack:8536  pid:5746  tgid:5745  ppid:5473   task_flags:0x440140 flags:0x00004006
[  581.980328][   T26] Call Trace:
[  581.980333][   T26]  <TASK>
[  581.980342][   T26]  __schedule+0x190e/0x4c90
[  581.980365][   T26]  ? lockdep_hardirqs_on_prepare+0x43d/0x780
[  581.980394][   T26]  ? __pfx___schedule+0x10/0x10
[  581.980411][   T26]  ? __pfx_lock_release+0x10/0x10
[  581.980424][   T26]  ? __lock_acquire+0x1397/0x2100
[  581.980439][   T26]  ? schedule+0x90/0x320
[  581.980449][   T26]  schedule+0x14b/0x320
[  581.980459][   T26]  schedule_timeout+0xb0/0x290
[  581.980469][   T26]  ? __pfx_schedule_timeout+0x10/0x10
[  581.980477][   T26]  ? lockdep_hardirqs_on_prepare+0x43d/0x780
[  581.980492][   T26]  ? _raw_spin_unlock_irq+0x23/0x50
[  581.980503][   T26]  ? lockdep_hardirqs_on+0x99/0x150
[  581.980520][   T26]  __down_common+0x375/0x820
[  581.980536][   T26]  ? __pfx___down_common+0x10/0x10
[  581.980547][   T26]  ? _raw_spin_lock_irqsave+0xe1/0x120
[  581.980564][   T26]  ? bch2_printbuf_make_room+0xdd/0x350
[  581.980579][   T26]  down+0x84/0xc0
[  581.980592][   T26]  console_lock+0x145/0x1b0
[  581.980606][   T26]  bch2_print_string_as_lines+0x20/0xc0
[  581.980623][   T26]  __bch2_fsck_err+0x1044/0x1420
[  581.980645][   T26]  ? bch2_prt_printf+0x559/0x6d0
[  581.980658][   T26]  ? __pfx_bch2_prt_printf+0x10/0x10
[  581.980667][   T26]  ? __pfx___bch2_fsck_err+0x10/0x10
[  581.980680][   T26]  ? bch2_snapshot_to_text+0x154/0x430
[  581.980695][   T26]  bch2_check_snapshots+0x1ee1/0x3eb0
[  581.980711][   T26]  ? mark_lock+0x9a/0x360
[  581.980727][   T26]  ? __pfx_bch2_check_snapshots+0x10/0x10
[  581.980741][   T26]  ? mark_lock+0x9a/0x360
[  581.980748][   T26]  ? down_trylock+0x57/0xa0
[  581.980756][   T26]  ? __lock_acquire+0x1397/0x2100
[  581.980776][   T26]  ? llist_add_batch+0x143/0x270
[  581.980789][   T26]  ? __pfx_llist_add_batch+0x10/0x10
[  581.980805][   T26]  ? irq_work_queue+0xca/0x150
[  581.980819][   T26]  ? __wake_up_klogd+0xd5/0x110
[  581.980833][   T26]  ? vprintk_emit+0x7ed/0xa10
[  581.980858][   T26]  ? __bch2_print+0x17a/0x220
[  581.980875][   T26]  ? bch2_check_snapshots+0x234/0x3eb0
[  581.980892][   T26]  ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[  581.980911][   T26]  bch2_run_recovery_pass+0xf0/0x1e0
[  581.980942][   T26]  bch2_run_recovery_passes+0x2ad/0xa90
[  581.980958][   T26]  bch2_fs_recovery+0x265a/0x3de0
[  581.980974][   T26]  ? __pfx_bch2_fs_recovery+0x10/0x10
[  581.980996][   T26]  ? __pfx_lock_release+0x10/0x10
[  581.981007][   T26]  ? bch2_get_next_online_dev+0x2b/0x4f0
[  581.981017][   T26]  ? __pfx_lock_release+0x10/0x10
[  581.981032][   T26]  ? bch2_get_next_online_dev+0x2b/0x4f0
[  581.981041][   T26]  ? bch2_get_next_online_dev+0x4b9/0x4f0
[  581.981050][   T26]  ? bch2_get_next_online_dev+0x2b/0x4f0
[  581.981060][   T26]  ? llist_reverse_order+0x72/0x90
[  581.981074][   T26]  bch2_fs_start+0x37c/0x610
[  581.981086][   T26]  bch2_fs_get_tree+0xdb7/0x17a0
[  581.981104][   T26]  ? __pfx_bch2_fs_get_tree+0x10/0x10
[  581.981127][   T26]  ? vfs_parse_monolithic_sep+0x423/0x460
[  581.981145][   T26]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  581.981162][   T26]  ? rcu_is_watching+0x15/0xb0
[  581.981177][   T26]  ? apparmor_capable+0x13b/0x1b0
[  581.981195][   T26]  vfs_get_tree+0x90/0x2b0
[  581.981210][   T26]  do_new_mount+0x2be/0xb40
[  581.981229][   T26]  ? __pfx_do_new_mount+0x10/0x10
[  581.981250][   T26]  __se_sys_mount+0x2d6/0x3c0
[  581.981262][   T26]  ? __pfx___se_sys_mount+0x10/0x10
[  581.981273][   T26]  ? exc_page_fault+0x590/0x8b0
[  581.981284][   T26]  ? __x64_sys_mount+0x20/0xc0
[  581.981296][   T26]  do_syscall_64+0xf3/0x230
[  581.981303][   T26]  ? clear_bhb_loop+0x35/0x90
[  581.981315][   T26]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  581.981325][   T26] RIP: 0033:0x7f514938e90a
[  581.981333][   T26] RSP: 002b:00007f514a2b2e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  581.981343][   T26] RAX: ffffffffffffffda RBX: 00007f514a2b2ef0 RCX: 00007f514938e90a
[  581.981350][   T26] RDX: 00002000000000c0 RSI: 0000200000000000 RDI: 00007f514a2b2eb0
[  581.981355][   T26] RBP: 00002000000000c0 R08: 00007f514a2b2ef0 R09: 0000000000800000
[  581.981361][   T26] R10: 0000000000800000 R11: 0000000000000246 R12: 0000200000000000
[  581.981367][   T26] R13: 00007f514a2b2eb0 R14: 0000000000005903 R15: 0000200000000200
[  581.981378][   T26]  </TASK>
[  581.981387][   T26] 
[  581.981387][   T26] Showing all locks held in the system:
[  581.981394][   T26] 1 lock held by khungtaskd/26:
[  581.981399][   T26]  #0: ffffffff8eb393e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0
[  581.981447][   T26] 2 locks held by getty/5106:
[  581.981452][   T26]  #0: ffff88801aef10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  581.981476][   T26]  #1: ffffc9000019b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x616/0x1770
[  581.981514][   T26] 4 locks held by kworker/0:0/5372:
[  581.981525][   T26] 2 locks held by kworker/0:5/5483:
[  581.981536][   T26] 4 locks held by syz.0.40/5746:
[  581.981546][   T26]  #0: ffff888053680278 (&c->state_lock){+.+.}-{4:4}, at: bch2_fs_start+0x45/0x610
[  581.981616][   T26]  #1: ffff888053684378 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7e4/0xd30
[  581.981651][   T26]  #2: ffff88804e5d4140 (bcachefs_btree){+.+.}-{0:0}, at: __bch2_trans_get+0x7e4/0xd30
[  581.981685][   T26]  #3: ffff8880536e1548 (&c->fsck_error_msgs_lock){+.+.}-{4:4}, at: __bch2_fsck_err+0x3b0/0x1420
[  581.981723][   T26] 1 lock held by syz.5.468/6650:
[  581.981732][   T26] 2 locks held by syz.2.470/6654:
[  581.981739][   T26] 2 locks held by syz.3.471/6656:
[  581.981745][   T26] 2 locks held by syz.1.472/6658:
[  581.981753][   T26] 2 locks held by syz.4.473/6660:
[  581.981760][   T26] 
[  581.981765][   T26] =============================================
[  581.981765][   T26] 
[  581.981772][   T26] NMI backtrace for cpu 0
[  581.981778][   T26] CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  581.981789][   T26] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  581.981796][   T26] Call Trace:
[  581.981800][   T26]  <TASK>
[  581.981805][   T26]  dump_stack_lvl+0x241/0x360
[  581.981818][   T26]  ? __pfx_dump_stack_lvl+0x10/0x10
[  581.981829][   T26]  ? __pfx__printk+0x10/0x10
[  581.981845][   T26]  nmi_cpu_backtrace+0x49c/0x4d0
[  581.981861][   T26]  ? __pfx_nmi_cpu_backtrace+0x10/0x10
[  581.981872][   T26]  ? _printk+0xd5/0x120
[  581.981880][   T26]  ? __pfx__printk+0x10/0x10
[  581.981889][   T26]  ? __wake_up_klogd+0xcc/0x110
[  581.981902][   T26]  ? __pfx__printk+0x10/0x10
[  581.981914][   T26]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  581.981928][   T26]  nmi_trigger_cpumask_backtrace+0x198/0x320
[  581.981943][   T26]  watchdog+0x1058/0x10a0
[  581.981959][   T26]  ? watchdog+0x1ea/0x10a0
[  581.981976][   T26]  ? __pfx_watchdog+0x10/0x10
[  581.981990][   T26]  kthread+0x7a9/0x920
[  581.982005][   T26]  ? __pfx_kthread+0x10/0x10
[  581.982020][   T26]  ? __pfx_watchdog+0x10/0x10
[  581.982035][   T26]  ? __pfx_kthread+0x10/0x10
[  581.982049][   T26]  ? __pfx_kthread+0x10/0x10
[  581.982064][   T26]  ? __pfx_kthread+0x10/0x10
[  581.982077][   T26]  ? _raw_spin_unlock_irq+0x23/0x50
[  581.982090][   T26]  ? lockdep_hardirqs_on+0x99/0x150
[  581.982104][   T26]  ? __pfx_kthread+0x10/0x10
[  581.982118][   T26]  ret_from_fork+0x4b/0x80
[  581.982130][   T26]  ? __pfx_kthread+0x10/0x10
[  581.982145][   T26]  ret_from_fork_asm+0x1a/0x30
[  581.982165][   T26]  </TASK>
[  581.982172][   T26] Kernel panic - not syncing: hung_task: blocked tasks
[  581.982177][   T26] CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
[  581.982184][   T26] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  581.982189][   T26] Call Trace:
[  581.982192][   T26]  <TASK>
[  581.982195][   T26]  dump_stack_lvl+0x241/0x360
[  581.982204][   T26]  ? __pfx_dump_stack_lvl+0x10/0x10
[  581.982211][   T26]  ? __pfx__printk+0x10/0x10
[  581.982220][   T26]  ? vscnprintf+0x5d/0x90
[  581.982230][   T26]  panic+0x349/0x880
[  581.982246][   T26]  ? nmi_trigger_cpumask_backtrace+0x244/0x320
[  581.982261][   T26]  ? __pfx_panic+0x10/0x10
[  581.982271][   T26]  ? __wake_up_klogd+0xcc/0x110
[  581.982287][   T26]  ? irq_work_queue+0xd1/0x150
[  581.982302][   T26]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  581.982316][   T26]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  581.982329][   T26]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  581.982342][   T26]  ? nmi_trigger_cpumask_backtrace+0x251/0x320
[  581.982357][   T26]  watchdog+0x1097/0x10a0
[  581.982372][   T26]  ? watchdog+0x1ea/0x10a0
[  581.982389][   T26]  ? __pfx_watchdog+0x10/0x10
[  581.982405][   T26]  kthread+0x7a9/0x920
[  581.982420][   T26]  ? __pfx_kthread+0x10/0x10
[  581.982437][   T26]  ? __pfx_watchdog+0x10/0x10
[  581.982451][   T26]  ? __pfx_kthread+0x10/0x10
[  581.982466][   T26]  ? __pfx_kthread+0x10/0x10
[  581.982482][   T26]  ? __pfx_kthread+0x10/0x10
[  581.982496][   T26]  ? _raw_spin_unlock_irq+0x23/0x50
[  581.982509][   T26]  ? lockdep_hardirqs_on+0x99/0x150
[  581.982523][   T26]  ? __pfx_kthread+0x10/0x10
[  581.982538][   T26]  ret_from_fork+0x4b/0x80
[  581.982552][   T26]  ? __pfx_kthread+0x10/0x10
[  581.982588][   T26]  ret_from_fork_asm+0x1a/0x30
[  581.982607][   T26]  </TASK>
[  581.982841][   T26] Kernel Offset: disabled

VM DIAGNOSIS:
05:59:59  Registers:
info registers vcpu 0

CPU#0
RAX=1ffffffff3533460 RBX=ffffffff9a99a100 RCX=0000000000000000 RDX=00000000000003fd
RSI=0000000000000000 RDI=0000000000000020 RBP=0000000000000000 RSP=ffffc900004d7778
R8 =ffffffff85845566 R9 =1ffff11003dbd046 R10=dffffc0000000000 R11=ffffffff85845520
R12=0000000000000000 R13=1ffffffff3533472 R14=00000000000003fd R15=dffffc0000000000
RIP=ffffffff85845596 RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 ffffffff 00c00000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS   [-WA]
DS =0000 0000000000000000 ffffffff 00c00000
FS =0000 0000000000000000 ffffffff 00c00000
GS =0000 ffff88801fc00000 ffffffff 00c00000
LDT=0000 0000000000000000 ffffffff 00c00000
TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy
GDT=     fffffe0000001000 0000007f
IDT=     fffffe0000000000 00000fff
CR0=80050033 CR2=00007fb6091ff000 CR3=0000000045ee6000 CR4=00352ef0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 
DR6=00000000fffe0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
Opmask00=0000000001000000 Opmask01=0000000001000001 Opmask02=00000000ffffffef Opmask03=0000000000000000
Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000
ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffef7fc2eb0 0000003000000018
ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 000001a0000000d0 00000000ffffffff
ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 000001a0000000d0 00000000ffffffff
ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007fb61160f282
ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007fb61160f28f
ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007fb61160f289
ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007fb61160f29d
ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007fb61160f323
ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007fb61160f401
ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000003 0000000000000000 0000000000000000 0000000000000000
ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00000000000000f0
ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000003 0000000000000000 0000000000000000 00000000000000f0
ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 000000524f525245
ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00524f5252450040
ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00e800a800000000
ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000