[  483.812595][T18395]  dump_stack_lvl+0x189/0x250
[  483.812613][T18395]  ? __pfx____ratelimit+0x10/0x10
[  483.812632][T18395]  ? __pfx_dump_stack_lvl+0x10/0x10
[  483.812646][T18395]  ? __pfx__printk+0x10/0x10
[  483.812663][T18395]  ? __might_fault+0xb0/0x130
[  483.812683][T18395]  should_fail_ex+0x414/0x560
[  483.812702][T18395]  _copy_from_user+0x2d/0xb0
[  483.812716][T18395]  kstrtouint_from_user+0xc4/0x170
[  483.812739][T18395]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  483.812764][T18395]  proc_fail_nth_write+0x88/0x200
[  483.812780][T18395]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  483.812797][T18395]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  483.812811][T18395]  vfs_write+0x27b/0xa90
[  483.812828][T18395]  ? __pfx_vfs_write+0x10/0x10
[  483.812840][T18395]  ? __fget_files+0x2a/0x420
[  483.812855][T18395]  ? __fget_files+0x3a0/0x420
[  483.812866][T18395]  ? __fget_files+0x2a/0x420
[  483.812883][T18395]  ksys_write+0x145/0x250
[  483.812893][T18395]  ? __fget_files+0x3a0/0x420
[  483.812905][T18395]  ? __pfx_ksys_write+0x10/0x10
[  483.812920][T18395]  ? do_syscall_64+0xbe/0x3b0
[  483.812933][T18395]  do_syscall_64+0xfa/0x3b0
[  483.812942][T18395]  ? lockdep_hardirqs_on+0x9c/0x150
[  483.812958][T18395]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  483.812968][T18395]  ? clear_bhb_loop+0x60/0xb0
[  483.812991][T18395]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  483.813002][T18395] RIP: 0033:0x7fec16f8d3df
[  483.813013][T18395] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  483.813023][T18395] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  483.813037][T18395] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  483.813045][T18395] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  483.813052][T18395] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  483.813060][T18395] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  483.813067][T18395] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  483.813087][T18395]  </TASK>
[  483.852573][T18397] FAULT_INJECTION: forcing a failure.
[  483.852573][T18397] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  483.852602][T18397] CPU: 0 UID: 0 PID: 18397 Comm: syz.0.5914 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  483.852618][T18397] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  483.852628][T18397] Call Trace:
[  483.852634][T18397]  <TASK>
[  483.852641][T18397]  dump_stack_lvl+0x189/0x250
[  483.852663][T18397]  ? __pfx____ratelimit+0x10/0x10
[  483.852686][T18397]  ? __pfx_dump_stack_lvl+0x10/0x10
[  483.852702][T18397]  ? __pfx__printk+0x10/0x10
[  483.852721][T18397]  ? __might_fault+0xb0/0x130
[  483.852832][T18397]  should_fail_ex+0x414/0x560
[  483.852858][T18397]  _copy_from_user+0x2d/0xb0
[  483.852874][T18397]  kstrtouint_from_user+0xc4/0x170
[  483.852894][T18397]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  483.852924][T18397]  proc_fail_nth_write+0x88/0x200
[  483.852944][T18397]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  483.852966][T18397]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  483.853001][T18397]  vfs_write+0x27b/0xa90
[  483.853023][T18397]  ? __pfx_vfs_write+0x10/0x10
[  483.853040][T18397]  ? __fget_files+0x2a/0x420
[  483.853060][T18397]  ? __fget_files+0x3a0/0x420
[  483.853075][T18397]  ? __fget_files+0x2a/0x420
[  483.853097][T18397]  ksys_write+0x145/0x250
[  483.853111][T18397]  ? __fget_files+0x3a0/0x420
[  483.853129][T18397]  ? __pfx_ksys_write+0x10/0x10
[  483.853156][T18397]  ? do_syscall_64+0xbe/0x3b0
[  483.853174][T18397]  do_syscall_64+0xfa/0x3b0
[  483.853186][T18397]  ? lockdep_hardirqs_on+0x9c/0x150
[  483.853207][T18397]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  483.853220][T18397]  ? clear_bhb_loop+0x60/0xb0
[  483.853238][T18397]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  483.853252][T18397] RIP: 0033:0x7fec16f8d3df
[  483.853266][T18397] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  483.853279][T18397] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  483.853296][T18397] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  483.853306][T18397] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  483.853315][T18397] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  483.853324][T18397] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  483.853332][T18397] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  483.853355][T18397]  </TASK>
[  483.882028][T18399] FAULT_INJECTION: forcing a failure.
[  483.882028][T18399] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  483.882053][T18399] CPU: 0 UID: 0 PID: 18399 Comm: syz.0.5915 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  483.882067][T18399] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  483.882075][T18399] Call Trace:
[  483.882081][T18399]  <TASK>
[  483.882087][T18399]  dump_stack_lvl+0x189/0x250
[  483.882107][T18399]  ? __pfx____ratelimit+0x10/0x10
[  483.882126][T18399]  ? __pfx_dump_stack_lvl+0x10/0x10
[  483.882139][T18399]  ? __pfx__printk+0x10/0x10
[  483.882155][T18399]  ? __might_fault+0xb0/0x130
[  483.882178][T18399]  should_fail_ex+0x414/0x560
[  483.882198][T18399]  _copy_from_user+0x2d/0xb0
[  483.882213][T18399]  kstrtouint_from_user+0xc4/0x170
[  483.882231][T18399]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  483.882255][T18399]  proc_fail_nth_write+0x88/0x200
[  483.882272][T18399]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  483.882293][T18399]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  483.882311][T18399]  vfs_write+0x27b/0xa90
[  483.882331][T18399]  ? __pfx_vfs_write+0x10/0x10
[  483.882346][T18399]  ? __fget_files+0x2a/0x420
[  483.882363][T18399]  ? __fget_files+0x3a0/0x420
[  483.882377][T18399]  ? __fget_files+0x2a/0x420
[  483.882397][T18399]  ksys_write+0x145/0x250
[  483.882409][T18399]  ? __fget_files+0x3a0/0x420
[  483.882425][T18399]  ? __pfx_ksys_write+0x10/0x10
[  483.882442][T18399]  ? do_syscall_64+0xbe/0x3b0
[  483.882457][T18399]  do_syscall_64+0xfa/0x3b0
[  483.882467][T18399]  ? lockdep_hardirqs_on+0x9c/0x150
[  483.882484][T18399]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  483.882496][T18399]  ? clear_bhb_loop+0x60/0xb0
[  483.882511][T18399]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  483.882522][T18399] RIP: 0033:0x7fec16f8d3df
[  483.882534][T18399] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  483.882543][T18399] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  483.882555][T18399] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  483.882562][T18399] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  483.882568][T18399] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  483.882574][T18399] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  483.882580][T18399] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  483.882597][T18399]  </TASK>
[  483.921842][T18401] FAULT_INJECTION: forcing a failure.
[  483.921842][T18401] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  483.921867][T18401] CPU: 0 UID: 0 PID: 18401 Comm: syz.0.5916 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  483.921882][T18401] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  483.921889][T18401] Call Trace:
[  483.921895][T18401]  <TASK>
[  483.921901][T18401]  dump_stack_lvl+0x189/0x250
[  483.921920][T18401]  ? __pfx____ratelimit+0x10/0x10
[  483.921936][T18401]  ? __pfx_dump_stack_lvl+0x10/0x10
[  483.921947][T18401]  ? __pfx__printk+0x10/0x10
[  483.921960][T18401]  ? __might_fault+0xb0/0x130
[  483.921981][T18401]  should_fail_ex+0x414/0x560
[  483.921999][T18401]  _copy_from_user+0x2d/0xb0
[  483.922012][T18401]  kstrtouint_from_user+0xc4/0x170
[  483.922030][T18401]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  483.922056][T18401]  proc_fail_nth_write+0x88/0x200
[  483.922071][T18401]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  483.922091][T18401]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  483.922108][T18401]  vfs_write+0x27b/0xa90
[  483.922127][T18401]  ? __pfx_vfs_write+0x10/0x10
[  483.922141][T18401]  ? __fget_files+0x2a/0x420
[  483.922159][T18401]  ? __fget_files+0x3a0/0x420
[  483.922172][T18401]  ? __fget_files+0x2a/0x420
[  483.922193][T18401]  ksys_write+0x145/0x250
[  483.922205][T18401]  ? __fget_files+0x3a0/0x420
[  483.922220][T18401]  ? __pfx_ksys_write+0x10/0x10
[  483.922237][T18401]  ? do_syscall_64+0xbe/0x3b0
[  483.922252][T18401]  do_syscall_64+0xfa/0x3b0
[  483.922262][T18401]  ? lockdep_hardirqs_on+0x9c/0x150
[  483.922279][T18401]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  483.922291][T18401]  ? clear_bhb_loop+0x60/0xb0
[  483.922304][T18401]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  483.922313][T18401] RIP: 0033:0x7fec16f8d3df
[  483.922324][T18401] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  483.922333][T18401] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  483.922346][T18401] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  483.922354][T18401] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  483.922361][T18401] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  483.922369][T18401] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  483.922375][T18401] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  483.922395][T18401]  </TASK>
[  483.950878][T18403] FAULT_INJECTION: forcing a failure.
[  483.950878][T18403] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  483.950903][T18403] CPU: 0 UID: 0 PID: 18403 Comm: syz.0.5917 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  483.950917][T18403] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  483.950925][T18403] Call Trace:
[  483.950930][T18403]  <TASK>
[  483.950936][T18403]  dump_stack_lvl+0x189/0x250
[  483.950956][T18403]  ? __pfx____ratelimit+0x10/0x10
[  483.950974][T18403]  ? __pfx_dump_stack_lvl+0x10/0x10
[  483.950988][T18403]  ? __pfx__printk+0x10/0x10
[  483.951003][T18403]  ? __might_fault+0xb0/0x130
[  483.951025][T18403]  should_fail_ex+0x414/0x560
[  483.951046][T18403]  _copy_from_user+0x2d/0xb0
[  483.951061][T18403]  kstrtouint_from_user+0xc4/0x170
[  483.951081][T18403]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  483.951110][T18403]  proc_fail_nth_write+0x88/0x200
[  483.951129][T18403]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  483.951150][T18403]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  483.951168][T18403]  vfs_write+0x27b/0xa90
[  483.951188][T18403]  ? __pfx_vfs_write+0x10/0x10
[  483.951202][T18403]  ? __fget_files+0x2a/0x420
[  483.951219][T18403]  ? __fget_files+0x3a0/0x420
[  483.951233][T18403]  ? __fget_files+0x2a/0x420
[  483.951253][T18403]  ksys_write+0x145/0x250
[  483.951265][T18403]  ? __fget_files+0x3a0/0x420
[  483.951280][T18403]  ? __pfx_ksys_write+0x10/0x10
[  483.951297][T18403]  ? do_syscall_64+0xbe/0x3b0
[  483.951311][T18403]  do_syscall_64+0xfa/0x3b0
[  483.951321][T18403]  ? lockdep_hardirqs_on+0x9c/0x150
[  483.951338][T18403]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  483.951350][T18403]  ? clear_bhb_loop+0x60/0xb0
[  483.951364][T18403]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  483.951375][T18403] RIP: 0033:0x7fec16f8d3df
[  483.951387][T18403] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  483.951397][T18403] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  483.951411][T18403] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  483.951419][T18403] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  483.951426][T18403] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  483.951433][T18403] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  483.951440][T18403] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  483.951460][T18403]  </TASK>
[  483.989124][T18405] FAULT_INJECTION: forcing a failure.
[  483.989124][T18405] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  483.989148][T18405] CPU: 0 UID: 0 PID: 18405 Comm: syz.0.5918 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  483.989162][T18405] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  483.989170][T18405] Call Trace:
[  483.989176][T18405]  <TASK>
[  483.989181][T18405]  dump_stack_lvl+0x189/0x250
[  483.989198][T18405]  ? __pfx____ratelimit+0x10/0x10
[  483.989217][T18405]  ? __pfx_dump_stack_lvl+0x10/0x10
[  483.989230][T18405]  ? __pfx__printk+0x10/0x10
[  483.989246][T18405]  ? __might_fault+0xb0/0x130
[  483.989268][T18405]  should_fail_ex+0x414/0x560
[  483.989288][T18405]  _copy_from_user+0x2d/0xb0
[  483.989303][T18405]  kstrtouint_from_user+0xc4/0x170
[  483.989323][T18405]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  483.989352][T18405]  proc_fail_nth_write+0x88/0x200
[  483.989370][T18405]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  483.989391][T18405]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  483.989409][T18405]  vfs_write+0x27b/0xa90
[  483.989429][T18405]  ? __pfx_vfs_write+0x10/0x10
[  483.989443][T18405]  ? __fget_files+0x2a/0x420
[  483.989461][T18405]  ? __fget_files+0x3a0/0x420
[  483.989474][T18405]  ? __fget_files+0x2a/0x420
[  483.989495][T18405]  ksys_write+0x145/0x250
[  483.989507][T18405]  ? __fget_files+0x3a0/0x420
[  483.989522][T18405]  ? __pfx_ksys_write+0x10/0x10
[  483.989538][T18405]  ? do_syscall_64+0xbe/0x3b0
[  483.989553][T18405]  do_syscall_64+0xfa/0x3b0
[  483.989563][T18405]  ? lockdep_hardirqs_on+0x9c/0x150
[  483.989580][T18405]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  483.989591][T18405]  ? clear_bhb_loop+0x60/0xb0
[  483.989606][T18405]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  483.989617][T18405] RIP: 0033:0x7fec16f8d3df
[  483.989628][T18405] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  483.989639][T18405] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  483.989652][T18405] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  483.989661][T18405] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  483.989667][T18405] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  483.989673][T18405] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  483.989679][T18405] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  483.989694][T18405]  </TASK>
[  484.019435][T18407] FAULT_INJECTION: forcing a failure.
[  484.019435][T18407] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.019462][T18407] CPU: 0 UID: 0 PID: 18407 Comm: syz.0.5919 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.019475][T18407] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.019483][T18407] Call Trace:
[  484.019489][T18407]  <TASK>
[  484.019494][T18407]  dump_stack_lvl+0x189/0x250
[  484.019515][T18407]  ? __pfx____ratelimit+0x10/0x10
[  484.019534][T18407]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.019547][T18407]  ? __pfx__printk+0x10/0x10
[  484.019563][T18407]  ? __might_fault+0xb0/0x130
[  484.019586][T18407]  should_fail_ex+0x414/0x560
[  484.019607][T18407]  _copy_from_user+0x2d/0xb0
[  484.019621][T18407]  kstrtouint_from_user+0xc4/0x170
[  484.019641][T18407]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.019669][T18407]  proc_fail_nth_write+0x88/0x200
[  484.019703][T18407]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.019724][T18407]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.019742][T18407]  vfs_write+0x27b/0xa90
[  484.019762][T18407]  ? __pfx_vfs_write+0x10/0x10
[  484.019776][T18407]  ? __fget_files+0x2a/0x420
[  484.019795][T18407]  ? __fget_files+0x3a0/0x420
[  484.019807][T18407]  ? __fget_files+0x2a/0x420
[  484.019827][T18407]  ksys_write+0x145/0x250
[  484.019840][T18407]  ? __fget_files+0x3a0/0x420
[  484.019853][T18407]  ? __pfx_ksys_write+0x10/0x10
[  484.019870][T18407]  ? do_syscall_64+0xbe/0x3b0
[  484.019884][T18407]  do_syscall_64+0xfa/0x3b0
[  484.019894][T18407]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.019911][T18407]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.019922][T18407]  ? clear_bhb_loop+0x60/0xb0
[  484.019937][T18407]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.019947][T18407] RIP: 0033:0x7fec16f8d3df
[  484.019958][T18407] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.019969][T18407] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.019983][T18407] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.019991][T18407] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.019997][T18407] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.020004][T18407] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.020010][T18407] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.020030][T18407]  </TASK>
[  484.063374][T18409] FAULT_INJECTION: forcing a failure.
[  484.063374][T18409] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.063403][T18409] CPU: 0 UID: 0 PID: 18409 Comm: syz.0.5920 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.063416][T18409] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.063423][T18409] Call Trace:
[  484.063429][T18409]  <TASK>
[  484.063435][T18409]  dump_stack_lvl+0x189/0x250
[  484.063457][T18409]  ? __pfx____ratelimit+0x10/0x10
[  484.063475][T18409]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.063488][T18409]  ? __pfx__printk+0x10/0x10
[  484.063503][T18409]  ? __might_fault+0xb0/0x130
[  484.063526][T18409]  should_fail_ex+0x414/0x560
[  484.063555][T18409]  _copy_from_user+0x2d/0xb0
[  484.063570][T18409]  kstrtouint_from_user+0xc4/0x170
[  484.063590][T18409]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.063620][T18409]  proc_fail_nth_write+0x88/0x200
[  484.063644][T18409]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.063680][T18409]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.063698][T18409]  vfs_write+0x27b/0xa90
[  484.063727][T18409]  ? __pfx_vfs_write+0x10/0x10
[  484.063740][T18409]  ? __fget_files+0x2a/0x420
[  484.063759][T18409]  ? __fget_files+0x3a0/0x420
[  484.063772][T18409]  ? __fget_files+0x2a/0x420
[  484.063793][T18409]  ksys_write+0x145/0x250
[  484.063806][T18409]  ? __fget_files+0x3a0/0x420
[  484.063821][T18409]  ? __pfx_ksys_write+0x10/0x10
[  484.063838][T18409]  ? do_syscall_64+0xbe/0x3b0
[  484.063853][T18409]  do_syscall_64+0xfa/0x3b0
[  484.063862][T18409]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.063879][T18409]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.063896][T18409]  ? clear_bhb_loop+0x60/0xb0
[  484.063910][T18409]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.063922][T18409] RIP: 0033:0x7fec16f8d3df
[  484.063934][T18409] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.063943][T18409] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.063957][T18409] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.063964][T18409] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.063971][T18409] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.063978][T18409] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.063985][T18409] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.064005][T18409]  </TASK>
[  484.094724][T18411] FAULT_INJECTION: forcing a failure.
[  484.094724][T18411] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.094770][T18411] CPU: 0 UID: 0 PID: 18411 Comm: syz.0.5921 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.094789][T18411] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.094799][T18411] Call Trace:
[  484.094807][T18411]  <TASK>
[  484.094816][T18411]  dump_stack_lvl+0x189/0x250
[  484.094840][T18411]  ? __pfx____ratelimit+0x10/0x10
[  484.094865][T18411]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.094883][T18411]  ? __pfx__printk+0x10/0x10
[  484.094904][T18411]  ? __might_fault+0xb0/0x130
[  484.094933][T18411]  should_fail_ex+0x414/0x560
[  484.094962][T18411]  _copy_from_user+0x2d/0xb0
[  484.094981][T18411]  kstrtouint_from_user+0xc4/0x170
[  484.095007][T18411]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.095044][T18411]  proc_fail_nth_write+0x88/0x200
[  484.095069][T18411]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.095097][T18411]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.095120][T18411]  vfs_write+0x27b/0xa90
[  484.095146][T18411]  ? __pfx_vfs_write+0x10/0x10
[  484.095166][T18411]  ? __fget_files+0x2a/0x420
[  484.095190][T18411]  ? __fget_files+0x3a0/0x420
[  484.095208][T18411]  ? __fget_files+0x2a/0x420
[  484.095230][T18411]  ksys_write+0x145/0x250
[  484.095245][T18411]  ? __fget_files+0x3a0/0x420
[  484.095265][T18411]  ? __pfx_ksys_write+0x10/0x10
[  484.095286][T18411]  ? do_syscall_64+0xbe/0x3b0
[  484.095305][T18411]  do_syscall_64+0xfa/0x3b0
[  484.095319][T18411]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.095342][T18411]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.095358][T18411]  ? clear_bhb_loop+0x60/0xb0
[  484.095377][T18411]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.095394][T18411] RIP: 0033:0x7fec16f8d3df
[  484.095409][T18411] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.095422][T18411] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.095440][T18411] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.095452][T18411] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.095462][T18411] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.095470][T18411] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.095479][T18411] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.095506][T18411]  </TASK>
[  484.135284][T18413] FAULT_INJECTION: forcing a failure.
[  484.135284][T18413] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.135313][T18413] CPU: 0 UID: 0 PID: 18413 Comm: syz.0.5922 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.135326][T18413] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.135336][T18413] Call Trace:
[  484.135342][T18413]  <TASK>
[  484.135347][T18413]  dump_stack_lvl+0x189/0x250
[  484.135368][T18413]  ? __pfx____ratelimit+0x10/0x10
[  484.135387][T18413]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.135400][T18413]  ? __pfx__printk+0x10/0x10
[  484.135416][T18413]  ? __might_fault+0xb0/0x130
[  484.135438][T18413]  should_fail_ex+0x414/0x560
[  484.135458][T18413]  _copy_from_user+0x2d/0xb0
[  484.135473][T18413]  kstrtouint_from_user+0xc4/0x170
[  484.135492][T18413]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.135519][T18413]  proc_fail_nth_write+0x88/0x200
[  484.135537][T18413]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.135556][T18413]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.135573][T18413]  vfs_write+0x27b/0xa90
[  484.135594][T18413]  ? __pfx_vfs_write+0x10/0x10
[  484.135607][T18413]  ? __fget_files+0x2a/0x420
[  484.135624][T18413]  ? __fget_files+0x3a0/0x420
[  484.135638][T18413]  ? __fget_files+0x2a/0x420
[  484.135656][T18413]  ksys_write+0x145/0x250
[  484.135667][T18413]  ? __fget_files+0x3a0/0x420
[  484.135681][T18413]  ? __pfx_ksys_write+0x10/0x10
[  484.135697][T18413]  ? do_syscall_64+0xbe/0x3b0
[  484.135712][T18413]  do_syscall_64+0xfa/0x3b0
[  484.135722][T18413]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.135739][T18413]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.135748][T18413]  ? clear_bhb_loop+0x60/0xb0
[  484.135763][T18413]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.135774][T18413] RIP: 0033:0x7fec16f8d3df
[  484.135785][T18413] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.135795][T18413] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.135809][T18413] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.135816][T18413] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.135823][T18413] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.135831][T18413] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.135838][T18413] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.135855][T18413]  </TASK>
[  484.174340][T18415] FAULT_INJECTION: forcing a failure.
[  484.174340][T18415] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.174367][T18415] CPU: 0 UID: 0 PID: 18415 Comm: syz.0.5923 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.174383][T18415] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.174390][T18415] Call Trace:
[  484.174395][T18415]  <TASK>
[  484.174401][T18415]  dump_stack_lvl+0x189/0x250
[  484.174420][T18415]  ? __pfx____ratelimit+0x10/0x10
[  484.174440][T18415]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.174454][T18415]  ? __pfx__printk+0x10/0x10
[  484.174471][T18415]  ? __might_fault+0xb0/0x130
[  484.174493][T18415]  should_fail_ex+0x414/0x560
[  484.174514][T18415]  _copy_from_user+0x2d/0xb0
[  484.174531][T18415]  kstrtouint_from_user+0xc4/0x170
[  484.174550][T18415]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.174580][T18415]  proc_fail_nth_write+0x88/0x200
[  484.174599][T18415]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.174622][T18415]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.174640][T18415]  vfs_write+0x27b/0xa90
[  484.174659][T18415]  ? __pfx_vfs_write+0x10/0x10
[  484.174671][T18415]  ? __fget_files+0x2a/0x420
[  484.174689][T18415]  ? __fget_files+0x3a0/0x420
[  484.174711][T18415]  ? __fget_files+0x2a/0x420
[  484.174728][T18415]  ksys_write+0x145/0x250
[  484.174738][T18415]  ? __fget_files+0x3a0/0x420
[  484.174751][T18415]  ? __pfx_ksys_write+0x10/0x10
[  484.174766][T18415]  ? do_syscall_64+0xbe/0x3b0
[  484.174781][T18415]  do_syscall_64+0xfa/0x3b0
[  484.174791][T18415]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.174808][T18415]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.174820][T18415]  ? clear_bhb_loop+0x60/0xb0
[  484.174835][T18415]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.174848][T18415] RIP: 0033:0x7fec16f8d3df
[  484.174860][T18415] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.174871][T18415] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.174885][T18415] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.174894][T18415] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.174901][T18415] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.174907][T18415] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.174914][T18415] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.174935][T18415]  </TASK>
[  484.200118][T18417] FAULT_INJECTION: forcing a failure.
[  484.200118][T18417] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.200145][T18417] CPU: 0 UID: 0 PID: 18417 Comm: syz.0.5924 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.200161][T18417] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.200168][T18417] Call Trace:
[  484.200174][T18417]  <TASK>
[  484.200180][T18417]  dump_stack_lvl+0x189/0x250
[  484.200201][T18417]  ? __pfx____ratelimit+0x10/0x10
[  484.200221][T18417]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.200236][T18417]  ? __pfx__printk+0x10/0x10
[  484.200253][T18417]  ? __might_fault+0xb0/0x130
[  484.200276][T18417]  should_fail_ex+0x414/0x560
[  484.200299][T18417]  _copy_from_user+0x2d/0xb0
[  484.200316][T18417]  kstrtouint_from_user+0xc4/0x170
[  484.200337][T18417]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.200368][T18417]  proc_fail_nth_write+0x88/0x200
[  484.200388][T18417]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.200410][T18417]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.200475][T18417]  vfs_write+0x27b/0xa90
[  484.200497][T18417]  ? __pfx_vfs_write+0x10/0x10
[  484.200510][T18417]  ? __fget_files+0x2a/0x420
[  484.200530][T18417]  ? __fget_files+0x3a0/0x420
[  484.200544][T18417]  ? __fget_files+0x2a/0x420
[  484.200565][T18417]  ksys_write+0x145/0x250
[  484.200578][T18417]  ? __fget_files+0x3a0/0x420
[  484.200594][T18417]  ? __pfx_ksys_write+0x10/0x10
[  484.200613][T18417]  ? do_syscall_64+0xbe/0x3b0
[  484.200627][T18417]  do_syscall_64+0xfa/0x3b0
[  484.200638][T18417]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.200656][T18417]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.200669][T18417]  ? clear_bhb_loop+0x60/0xb0
[  484.200683][T18417]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.200695][T18417] RIP: 0033:0x7fec16f8d3df
[  484.200709][T18417] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.200719][T18417] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.200732][T18417] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.200740][T18417] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.200748][T18417] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.200756][T18417] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.200763][T18417] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.200784][T18417]  </TASK>
[  484.243269][T18419] FAULT_INJECTION: forcing a failure.
[  484.243269][T18419] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.243299][T18419] CPU: 0 UID: 0 PID: 18419 Comm: syz.0.5925 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.243313][T18419] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.243321][T18419] Call Trace:
[  484.243327][T18419]  <TASK>
[  484.243333][T18419]  dump_stack_lvl+0x189/0x250
[  484.243354][T18419]  ? __pfx____ratelimit+0x10/0x10
[  484.243372][T18419]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.243387][T18419]  ? __pfx__printk+0x10/0x10
[  484.243404][T18419]  ? __might_fault+0xb0/0x130
[  484.243427][T18419]  should_fail_ex+0x414/0x560
[  484.243448][T18419]  _copy_from_user+0x2d/0xb0
[  484.243464][T18419]  kstrtouint_from_user+0xc4/0x170
[  484.243485][T18419]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.243514][T18419]  proc_fail_nth_write+0x88/0x200
[  484.243534][T18419]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.243557][T18419]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.243575][T18419]  vfs_write+0x27b/0xa90
[  484.243595][T18419]  ? __pfx_vfs_write+0x10/0x10
[  484.243611][T18419]  ? __fget_files+0x2a/0x420
[  484.243628][T18419]  ? __fget_files+0x3a0/0x420
[  484.243642][T18419]  ? __fget_files+0x2a/0x420
[  484.243663][T18419]  ksys_write+0x145/0x250
[  484.243675][T18419]  ? __fget_files+0x3a0/0x420
[  484.243690][T18419]  ? __pfx_ksys_write+0x10/0x10
[  484.243708][T18419]  ? do_syscall_64+0xbe/0x3b0
[  484.243723][T18419]  do_syscall_64+0xfa/0x3b0
[  484.243732][T18419]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.243749][T18419]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.243762][T18419]  ? clear_bhb_loop+0x60/0xb0
[  484.243777][T18419]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.243790][T18419] RIP: 0033:0x7fec16f8d3df
[  484.243802][T18419] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.243820][T18419] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.243832][T18419] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.243839][T18419] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.243847][T18419] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.243854][T18419] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.243861][T18419] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.243881][T18419]  </TASK>
[  484.279899][T18421] FAULT_INJECTION: forcing a failure.
[  484.279899][T18421] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.279930][T18421] CPU: 0 UID: 0 PID: 18421 Comm: syz.0.5926 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.279946][T18421] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.279954][T18421] Call Trace:
[  484.279961][T18421]  <TASK>
[  484.279968][T18421]  dump_stack_lvl+0x189/0x250
[  484.279992][T18421]  ? __pfx____ratelimit+0x10/0x10
[  484.280009][T18421]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.280020][T18421]  ? __pfx__printk+0x10/0x10
[  484.280038][T18421]  ? __might_fault+0xb0/0x130
[  484.280062][T18421]  should_fail_ex+0x414/0x560
[  484.280086][T18421]  _copy_from_user+0x2d/0xb0
[  484.280101][T18421]  kstrtouint_from_user+0xc4/0x170
[  484.280122][T18421]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.280154][T18421]  proc_fail_nth_write+0x88/0x200
[  484.280174][T18421]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.280198][T18421]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.280217][T18421]  vfs_write+0x27b/0xa90
[  484.280239][T18421]  ? __pfx_vfs_write+0x10/0x10
[  484.280256][T18421]  ? __fget_files+0x2a/0x420
[  484.280276][T18421]  ? __fget_files+0x3a0/0x420
[  484.280291][T18421]  ? __fget_files+0x2a/0x420
[  484.280314][T18421]  ksys_write+0x145/0x250
[  484.280326][T18421]  ? __fget_files+0x3a0/0x420
[  484.280343][T18421]  ? __pfx_ksys_write+0x10/0x10
[  484.280362][T18421]  ? do_syscall_64+0xbe/0x3b0
[  484.280378][T18421]  do_syscall_64+0xfa/0x3b0
[  484.280390][T18421]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.280408][T18421]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.280457][T18421]  ? clear_bhb_loop+0x60/0xb0
[  484.280474][T18421]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.280486][T18421] RIP: 0033:0x7fec16f8d3df
[  484.280500][T18421] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.280512][T18421] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.280527][T18421] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.280538][T18421] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.280546][T18421] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.280553][T18421] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.280560][T18421] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.280582][T18421]  </TASK>
[  484.310607][T18423] FAULT_INJECTION: forcing a failure.
[  484.310607][T18423] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.310635][T18423] CPU: 0 UID: 0 PID: 18423 Comm: syz.0.5927 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.310650][T18423] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.310657][T18423] Call Trace:
[  484.310662][T18423]  <TASK>
[  484.310668][T18423]  dump_stack_lvl+0x189/0x250
[  484.310688][T18423]  ? __pfx____ratelimit+0x10/0x10
[  484.310717][T18423]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.310731][T18423]  ? __pfx__printk+0x10/0x10
[  484.310748][T18423]  ? __might_fault+0xb0/0x130
[  484.310770][T18423]  should_fail_ex+0x414/0x560
[  484.310790][T18423]  _copy_from_user+0x2d/0xb0
[  484.310805][T18423]  kstrtouint_from_user+0xc4/0x170
[  484.310825][T18423]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.310853][T18423]  proc_fail_nth_write+0x88/0x200
[  484.310871][T18423]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.310892][T18423]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.310909][T18423]  vfs_write+0x27b/0xa90
[  484.310930][T18423]  ? __pfx_vfs_write+0x10/0x10
[  484.310947][T18423]  ? __fget_files+0x2a/0x420
[  484.310964][T18423]  ? __fget_files+0x3a0/0x420
[  484.310977][T18423]  ? __fget_files+0x2a/0x420
[  484.310998][T18423]  ksys_write+0x145/0x250
[  484.311010][T18423]  ? __fget_files+0x3a0/0x420
[  484.311024][T18423]  ? __pfx_ksys_write+0x10/0x10
[  484.311041][T18423]  ? do_syscall_64+0xbe/0x3b0
[  484.311055][T18423]  do_syscall_64+0xfa/0x3b0
[  484.311065][T18423]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.311083][T18423]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.311094][T18423]  ? clear_bhb_loop+0x60/0xb0
[  484.311108][T18423]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.311119][T18423] RIP: 0033:0x7fec16f8d3df
[  484.311133][T18423] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.311142][T18423] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.311157][T18423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.311164][T18423] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.311171][T18423] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.311179][T18423] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.311186][T18423] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.311205][T18423]  </TASK>
[  484.348579][T18425] FAULT_INJECTION: forcing a failure.
[  484.348579][T18425] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.348607][T18425] CPU: 0 UID: 0 PID: 18425 Comm: syz.0.5928 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.348620][T18425] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.348628][T18425] Call Trace:
[  484.348633][T18425]  <TASK>
[  484.348639][T18425]  dump_stack_lvl+0x189/0x250
[  484.348658][T18425]  ? __pfx____ratelimit+0x10/0x10
[  484.348677][T18425]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.348690][T18425]  ? __pfx__printk+0x10/0x10
[  484.348704][T18425]  ? __might_fault+0xb0/0x130
[  484.348726][T18425]  should_fail_ex+0x414/0x560
[  484.348745][T18425]  _copy_from_user+0x2d/0xb0
[  484.348760][T18425]  kstrtouint_from_user+0xc4/0x170
[  484.348780][T18425]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.348808][T18425]  proc_fail_nth_write+0x88/0x200
[  484.348825][T18425]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.348846][T18425]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.348863][T18425]  vfs_write+0x27b/0xa90
[  484.348882][T18425]  ? __pfx_vfs_write+0x10/0x10
[  484.348895][T18425]  ? __fget_files+0x2a/0x420
[  484.348913][T18425]  ? __fget_files+0x3a0/0x420
[  484.348926][T18425]  ? __fget_files+0x2a/0x420
[  484.348951][T18425]  ksys_write+0x145/0x250
[  484.348963][T18425]  ? __fget_files+0x3a0/0x420
[  484.348977][T18425]  ? __pfx_ksys_write+0x10/0x10
[  484.348993][T18425]  ? do_syscall_64+0xbe/0x3b0
[  484.349008][T18425]  do_syscall_64+0xfa/0x3b0
[  484.349018][T18425]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.349035][T18425]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.349046][T18425]  ? clear_bhb_loop+0x60/0xb0
[  484.349059][T18425]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.349071][T18425] RIP: 0033:0x7fec16f8d3df
[  484.349082][T18425] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.349092][T18425] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.349105][T18425] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.349112][T18425] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.349119][T18425] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.349126][T18425] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.349133][T18425] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.349152][T18425]  </TASK>
[  484.385415][T18427] FAULT_INJECTION: forcing a failure.
[  484.385415][T18427] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.385444][T18427] CPU: 0 UID: 0 PID: 18427 Comm: syz.0.5929 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.385459][T18427] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.385467][T18427] Call Trace:
[  484.385473][T18427]  <TASK>
[  484.385479][T18427]  dump_stack_lvl+0x189/0x250
[  484.385501][T18427]  ? __pfx____ratelimit+0x10/0x10
[  484.385522][T18427]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.385536][T18427]  ? __pfx__printk+0x10/0x10
[  484.385553][T18427]  ? __might_fault+0xb0/0x130
[  484.385577][T18427]  should_fail_ex+0x414/0x560
[  484.385601][T18427]  _copy_from_user+0x2d/0xb0
[  484.385617][T18427]  kstrtouint_from_user+0xc4/0x170
[  484.385638][T18427]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.385669][T18427]  proc_fail_nth_write+0x88/0x200
[  484.385689][T18427]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.385710][T18427]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.385729][T18427]  vfs_write+0x27b/0xa90
[  484.385750][T18427]  ? __pfx_vfs_write+0x10/0x10
[  484.385765][T18427]  ? __fget_files+0x2a/0x420
[  484.385785][T18427]  ? __fget_files+0x3a0/0x420
[  484.385799][T18427]  ? __fget_files+0x2a/0x420
[  484.385822][T18427]  ksys_write+0x145/0x250
[  484.385834][T18427]  ? __fget_files+0x3a0/0x420
[  484.385851][T18427]  ? __pfx_ksys_write+0x10/0x10
[  484.385868][T18427]  ? do_syscall_64+0xbe/0x3b0
[  484.385884][T18427]  do_syscall_64+0xfa/0x3b0
[  484.385895][T18427]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.385914][T18427]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.385927][T18427]  ? clear_bhb_loop+0x60/0xb0
[  484.385950][T18427]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.385963][T18427] RIP: 0033:0x7fec16f8d3df
[  484.385975][T18427] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.385985][T18427] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.385999][T18427] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.386005][T18427] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.386012][T18427] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.386019][T18427] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.386026][T18427] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.386044][T18427]  </TASK>
[  484.416636][T18429] FAULT_INJECTION: forcing a failure.
[  484.416636][T18429] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.416660][T18429] CPU: 0 UID: 0 PID: 18429 Comm: syz.0.5930 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.416673][T18429] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.416680][T18429] Call Trace:
[  484.416686][T18429]  <TASK>
[  484.416691][T18429]  dump_stack_lvl+0x189/0x250
[  484.416710][T18429]  ? __pfx____ratelimit+0x10/0x10
[  484.416725][T18429]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.416737][T18429]  ? __pfx__printk+0x10/0x10
[  484.416750][T18429]  ? __might_fault+0xb0/0x130
[  484.416768][T18429]  should_fail_ex+0x414/0x560
[  484.416786][T18429]  _copy_from_user+0x2d/0xb0
[  484.416799][T18429]  kstrtouint_from_user+0xc4/0x170
[  484.416816][T18429]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.416841][T18429]  proc_fail_nth_write+0x88/0x200
[  484.416857][T18429]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.416874][T18429]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.416888][T18429]  vfs_write+0x27b/0xa90
[  484.416932][T18429]  ? __pfx_vfs_write+0x10/0x10
[  484.416953][T18429]  ? __fget_files+0x2a/0x420
[  484.416968][T18429]  ? __fget_files+0x3a0/0x420
[  484.416981][T18429]  ? __fget_files+0x2a/0x420
[  484.417000][T18429]  ksys_write+0x145/0x250
[  484.417012][T18429]  ? __fget_files+0x3a0/0x420
[  484.417027][T18429]  ? __pfx_ksys_write+0x10/0x10
[  484.417042][T18429]  ? do_syscall_64+0xbe/0x3b0
[  484.417054][T18429]  do_syscall_64+0xfa/0x3b0
[  484.417063][T18429]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.417078][T18429]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.417090][T18429]  ? clear_bhb_loop+0x60/0xb0
[  484.417103][T18429]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.417112][T18429] RIP: 0033:0x7fec16f8d3df
[  484.417123][T18429] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.417132][T18429] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.417145][T18429] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.417152][T18429] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.417159][T18429] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.417167][T18429] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.417173][T18429] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.417192][T18429]  </TASK>
[  484.453644][T18431] FAULT_INJECTION: forcing a failure.
[  484.453644][T18431] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.453681][T18431] CPU: 0 UID: 0 PID: 18431 Comm: syz.0.5931 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.453695][T18431] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.453702][T18431] Call Trace:
[  484.453708][T18431]  <TASK>
[  484.453713][T18431]  dump_stack_lvl+0x189/0x250
[  484.453731][T18431]  ? __pfx____ratelimit+0x10/0x10
[  484.453751][T18431]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.453764][T18431]  ? __pfx__printk+0x10/0x10
[  484.453780][T18431]  ? __might_fault+0xb0/0x130
[  484.453803][T18431]  should_fail_ex+0x414/0x560
[  484.453824][T18431]  _copy_from_user+0x2d/0xb0
[  484.453840][T18431]  kstrtouint_from_user+0xc4/0x170
[  484.453861][T18431]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.453892][T18431]  proc_fail_nth_write+0x88/0x200
[  484.453911][T18431]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.453933][T18431]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.453961][T18431]  vfs_write+0x27b/0xa90
[  484.453981][T18431]  ? __pfx_vfs_write+0x10/0x10
[  484.453996][T18431]  ? __fget_files+0x2a/0x420
[  484.454015][T18431]  ? __fget_files+0x3a0/0x420
[  484.454029][T18431]  ? __fget_files+0x2a/0x420
[  484.454051][T18431]  ksys_write+0x145/0x250
[  484.454062][T18431]  ? __fget_files+0x3a0/0x420
[  484.454078][T18431]  ? __pfx_ksys_write+0x10/0x10
[  484.454096][T18431]  ? do_syscall_64+0xbe/0x3b0
[  484.454110][T18431]  do_syscall_64+0xfa/0x3b0
[  484.454120][T18431]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.454134][T18431]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.454144][T18431]  ? clear_bhb_loop+0x60/0xb0
[  484.454158][T18431]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.454170][T18431] RIP: 0033:0x7fec16f8d3df
[  484.454186][T18431] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.454197][T18431] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.454211][T18431] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.454219][T18431] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.454226][T18431] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.454234][T18431] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.454241][T18431] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.454261][T18431]  </TASK>
[  484.485248][T18433] FAULT_INJECTION: forcing a failure.
[  484.485248][T18433] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.485272][T18433] CPU: 0 UID: 0 PID: 18433 Comm: syz.0.5932 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.485285][T18433] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.485291][T18433] Call Trace:
[  484.485295][T18433]  <TASK>
[  484.485300][T18433]  dump_stack_lvl+0x189/0x250
[  484.485321][T18433]  ? __pfx____ratelimit+0x10/0x10
[  484.485338][T18433]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.485349][T18433]  ? __pfx__printk+0x10/0x10
[  484.485361][T18433]  ? __might_fault+0xb0/0x130
[  484.485380][T18433]  should_fail_ex+0x414/0x560
[  484.485398][T18433]  _copy_from_user+0x2d/0xb0
[  484.485410][T18433]  kstrtouint_from_user+0xc4/0x170
[  484.485428][T18433]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.485453][T18433]  proc_fail_nth_write+0x88/0x200
[  484.485468][T18433]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.485493][T18433]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.485510][T18433]  vfs_write+0x27b/0xa90
[  484.485530][T18433]  ? __pfx_vfs_write+0x10/0x10
[  484.485545][T18433]  ? __fget_files+0x2a/0x420
[  484.485563][T18433]  ? __fget_files+0x3a0/0x420
[  484.485576][T18433]  ? __fget_files+0x2a/0x420
[  484.485597][T18433]  ksys_write+0x145/0x250
[  484.485609][T18433]  ? __fget_files+0x3a0/0x420
[  484.485624][T18433]  ? __pfx_ksys_write+0x10/0x10
[  484.485641][T18433]  ? do_syscall_64+0xbe/0x3b0
[  484.485656][T18433]  do_syscall_64+0xfa/0x3b0
[  484.485666][T18433]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.485683][T18433]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.485694][T18433]  ? clear_bhb_loop+0x60/0xb0
[  484.485709][T18433]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.485720][T18433] RIP: 0033:0x7fec16f8d3df
[  484.485732][T18433] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.485743][T18433] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.485757][T18433] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.485765][T18433] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.485771][T18433] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.485777][T18433] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.485782][T18433] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.485800][T18433]  </TASK>
[  484.524983][T18435] FAULT_INJECTION: forcing a failure.
[  484.524983][T18435] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.525008][T18435] CPU: 0 UID: 0 PID: 18435 Comm: syz.0.5933 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.525022][T18435] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.525030][T18435] Call Trace:
[  484.525035][T18435]  <TASK>
[  484.525041][T18435]  dump_stack_lvl+0x189/0x250
[  484.525060][T18435]  ? __pfx____ratelimit+0x10/0x10
[  484.525083][T18435]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.525097][T18435]  ? __pfx__printk+0x10/0x10
[  484.525112][T18435]  ? __might_fault+0xb0/0x130
[  484.525134][T18435]  should_fail_ex+0x414/0x560
[  484.525154][T18435]  _copy_from_user+0x2d/0xb0
[  484.525169][T18435]  kstrtouint_from_user+0xc4/0x170
[  484.525186][T18435]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.525213][T18435]  proc_fail_nth_write+0x88/0x200
[  484.525231][T18435]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.525250][T18435]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.525268][T18435]  vfs_write+0x27b/0xa90
[  484.525287][T18435]  ? __pfx_vfs_write+0x10/0x10
[  484.525301][T18435]  ? __fget_files+0x2a/0x420
[  484.525319][T18435]  ? __fget_files+0x3a0/0x420
[  484.525332][T18435]  ? __fget_files+0x2a/0x420
[  484.525349][T18435]  ksys_write+0x145/0x250
[  484.525360][T18435]  ? __fget_files+0x3a0/0x420
[  484.525375][T18435]  ? __pfx_ksys_write+0x10/0x10
[  484.525391][T18435]  ? do_syscall_64+0xbe/0x3b0
[  484.525406][T18435]  do_syscall_64+0xfa/0x3b0
[  484.525416][T18435]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.525433][T18435]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.525443][T18435]  ? clear_bhb_loop+0x60/0xb0
[  484.525458][T18435]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.525469][T18435] RIP: 0033:0x7fec16f8d3df
[  484.525479][T18435] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.525488][T18435] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.525501][T18435] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.525509][T18435] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.525516][T18435] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.525523][T18435] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.525530][T18435] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.525550][T18435]  </TASK>
[  484.550865][T18437] FAULT_INJECTION: forcing a failure.
[  484.550865][T18437] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.550892][T18437] CPU: 0 UID: 0 PID: 18437 Comm: syz.0.5934 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.550906][T18437] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.550913][T18437] Call Trace:
[  484.550919][T18437]  <TASK>
[  484.550924][T18437]  dump_stack_lvl+0x189/0x250
[  484.550950][T18437]  ? __pfx____ratelimit+0x10/0x10
[  484.550970][T18437]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.550983][T18437]  ? __pfx__printk+0x10/0x10
[  484.550999][T18437]  ? __might_fault+0xb0/0x130
[  484.551022][T18437]  should_fail_ex+0x414/0x560
[  484.551042][T18437]  _copy_from_user+0x2d/0xb0
[  484.551057][T18437]  kstrtouint_from_user+0xc4/0x170
[  484.551077][T18437]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.551107][T18437]  proc_fail_nth_write+0x88/0x200
[  484.551125][T18437]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.551146][T18437]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.551164][T18437]  vfs_write+0x27b/0xa90
[  484.551185][T18437]  ? __pfx_vfs_write+0x10/0x10
[  484.551199][T18437]  ? __fget_files+0x2a/0x420
[  484.551217][T18437]  ? __fget_files+0x3a0/0x420
[  484.551231][T18437]  ? __fget_files+0x2a/0x420
[  484.551252][T18437]  ksys_write+0x145/0x250
[  484.551263][T18437]  ? __fget_files+0x3a0/0x420
[  484.551279][T18437]  ? __pfx_ksys_write+0x10/0x10
[  484.551295][T18437]  ? do_syscall_64+0xbe/0x3b0
[  484.551310][T18437]  do_syscall_64+0xfa/0x3b0
[  484.551320][T18437]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.551337][T18437]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.551348][T18437]  ? clear_bhb_loop+0x60/0xb0
[  484.551363][T18437]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.551375][T18437] RIP: 0033:0x7fec16f8d3df
[  484.551386][T18437] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.551396][T18437] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.551409][T18437] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.551417][T18437] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.551424][T18437] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.551431][T18437] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.551438][T18437] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.551458][T18437]  </TASK>
[  484.582597][T18439] FAULT_INJECTION: forcing a failure.
[  484.582597][T18439] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.582623][T18439] CPU: 0 UID: 0 PID: 18439 Comm: syz.0.5935 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.582638][T18439] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.582645][T18439] Call Trace:
[  484.582651][T18439]  <TASK>
[  484.582657][T18439]  dump_stack_lvl+0x189/0x250
[  484.582677][T18439]  ? __pfx____ratelimit+0x10/0x10
[  484.582695][T18439]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.582708][T18439]  ? __pfx__printk+0x10/0x10
[  484.582725][T18439]  ? __might_fault+0xb0/0x130
[  484.582747][T18439]  should_fail_ex+0x414/0x560
[  484.582769][T18439]  _copy_from_user+0x2d/0xb0
[  484.582784][T18439]  kstrtouint_from_user+0xc4/0x170
[  484.582807][T18439]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.582838][T18439]  proc_fail_nth_write+0x88/0x200
[  484.582857][T18439]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.582878][T18439]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.582898][T18439]  vfs_write+0x27b/0xa90
[  484.582918][T18439]  ? __pfx_vfs_write+0x10/0x10
[  484.582933][T18439]  ? __fget_files+0x2a/0x420
[  484.582959][T18439]  ? __fget_files+0x3a0/0x420
[  484.582972][T18439]  ? __fget_files+0x2a/0x420
[  484.583000][T18439]  ksys_write+0x145/0x250
[  484.583013][T18439]  ? __fget_files+0x3a0/0x420
[  484.583028][T18439]  ? __pfx_ksys_write+0x10/0x10
[  484.583046][T18439]  ? do_syscall_64+0xbe/0x3b0
[  484.583061][T18439]  do_syscall_64+0xfa/0x3b0
[  484.583072][T18439]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.583088][T18439]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.583100][T18439]  ? clear_bhb_loop+0x60/0xb0
[  484.583116][T18439]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.583127][T18439] RIP: 0033:0x7fec16f8d3df
[  484.583137][T18439] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.583146][T18439] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.583159][T18439] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.583167][T18439] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.583174][T18439] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.583181][T18439] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.583188][T18439] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.583207][T18439]  </TASK>
[  484.619175][T18441] FAULT_INJECTION: forcing a failure.
[  484.619175][T18441] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.619201][T18441] CPU: 0 UID: 0 PID: 18441 Comm: syz.0.5936 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.619214][T18441] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.619222][T18441] Call Trace:
[  484.619227][T18441]  <TASK>
[  484.619233][T18441]  dump_stack_lvl+0x189/0x250
[  484.619253][T18441]  ? __pfx____ratelimit+0x10/0x10
[  484.619271][T18441]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.619281][T18441]  ? __pfx__printk+0x10/0x10
[  484.619295][T18441]  ? __might_fault+0xb0/0x130
[  484.619315][T18441]  should_fail_ex+0x414/0x560
[  484.619334][T18441]  _copy_from_user+0x2d/0xb0
[  484.619349][T18441]  kstrtouint_from_user+0xc4/0x170
[  484.619369][T18441]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.619399][T18441]  proc_fail_nth_write+0x88/0x200
[  484.619416][T18441]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.619433][T18441]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.619449][T18441]  vfs_write+0x27b/0xa90
[  484.619466][T18441]  ? __pfx_vfs_write+0x10/0x10
[  484.619479][T18441]  ? __fget_files+0x2a/0x420
[  484.619495][T18441]  ? __fget_files+0x3a0/0x420
[  484.619506][T18441]  ? __fget_files+0x2a/0x420
[  484.619525][T18441]  ksys_write+0x145/0x250
[  484.619536][T18441]  ? __fget_files+0x3a0/0x420
[  484.619551][T18441]  ? __pfx_ksys_write+0x10/0x10
[  484.619569][T18441]  ? do_syscall_64+0xbe/0x3b0
[  484.619582][T18441]  do_syscall_64+0xfa/0x3b0
[  484.619591][T18441]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.619608][T18441]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.619620][T18441]  ? clear_bhb_loop+0x60/0xb0
[  484.619635][T18441]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.619646][T18441] RIP: 0033:0x7fec16f8d3df
[  484.619657][T18441] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.619667][T18441] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.619681][T18441] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.619688][T18441] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.619696][T18441] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.619703][T18441] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.619710][T18441] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.619730][T18441]  </TASK>
[  484.658895][T18443] FAULT_INJECTION: forcing a failure.
[  484.658895][T18443] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.658922][T18443] CPU: 0 UID: 0 PID: 18443 Comm: syz.0.5937 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.658935][T18443] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.658942][T18443] Call Trace:
[  484.658948][T18443]  <TASK>
[  484.658954][T18443]  dump_stack_lvl+0x189/0x250
[  484.658974][T18443]  ? __pfx____ratelimit+0x10/0x10
[  484.658991][T18443]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.659005][T18443]  ? __pfx__printk+0x10/0x10
[  484.659026][T18443]  ? __might_fault+0xb0/0x130
[  484.659045][T18443]  should_fail_ex+0x414/0x560
[  484.659062][T18443]  _copy_from_user+0x2d/0xb0
[  484.659074][T18443]  kstrtouint_from_user+0xc4/0x170
[  484.659090][T18443]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.659114][T18443]  proc_fail_nth_write+0x88/0x200
[  484.659129][T18443]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.659150][T18443]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.659168][T18443]  vfs_write+0x27b/0xa90
[  484.659188][T18443]  ? __pfx_vfs_write+0x10/0x10
[  484.659202][T18443]  ? __fget_files+0x2a/0x420
[  484.659221][T18443]  ? __fget_files+0x3a0/0x420
[  484.659235][T18443]  ? __fget_files+0x2a/0x420
[  484.659256][T18443]  ksys_write+0x145/0x250
[  484.659269][T18443]  ? __fget_files+0x3a0/0x420
[  484.659285][T18443]  ? __pfx_ksys_write+0x10/0x10
[  484.659300][T18443]  ? do_syscall_64+0xbe/0x3b0
[  484.659315][T18443]  do_syscall_64+0xfa/0x3b0
[  484.659326][T18443]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.659342][T18443]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.659355][T18443]  ? clear_bhb_loop+0x60/0xb0
[  484.659370][T18443]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.659380][T18443] RIP: 0033:0x7fec16f8d3df
[  484.659389][T18443] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.659399][T18443] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.659412][T18443] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.659419][T18443] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.659427][T18443] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.659434][T18443] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.659442][T18443] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.659461][T18443]  </TASK>
[  484.694874][T18445] FAULT_INJECTION: forcing a failure.
[  484.694874][T18445] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.694899][T18445] CPU: 0 UID: 0 PID: 18445 Comm: syz.0.5938 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.694913][T18445] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.694920][T18445] Call Trace:
[  484.694926][T18445]  <TASK>
[  484.694932][T18445]  dump_stack_lvl+0x189/0x250
[  484.694951][T18445]  ? __pfx____ratelimit+0x10/0x10
[  484.694970][T18445]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.694984][T18445]  ? __pfx__printk+0x10/0x10
[  484.695000][T18445]  ? __might_fault+0xb0/0x130
[  484.695029][T18445]  should_fail_ex+0x414/0x560
[  484.695050][T18445]  _copy_from_user+0x2d/0xb0
[  484.695065][T18445]  kstrtouint_from_user+0xc4/0x170
[  484.695086][T18445]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.695116][T18445]  proc_fail_nth_write+0x88/0x200
[  484.695135][T18445]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.695156][T18445]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.695175][T18445]  vfs_write+0x27b/0xa90
[  484.695195][T18445]  ? __pfx_vfs_write+0x10/0x10
[  484.695210][T18445]  ? __fget_files+0x2a/0x420
[  484.695228][T18445]  ? __fget_files+0x3a0/0x420
[  484.695241][T18445]  ? __fget_files+0x2a/0x420
[  484.695263][T18445]  ksys_write+0x145/0x250
[  484.695274][T18445]  ? __fget_files+0x3a0/0x420
[  484.695290][T18445]  ? __pfx_ksys_write+0x10/0x10
[  484.695307][T18445]  ? do_syscall_64+0xbe/0x3b0
[  484.695323][T18445]  do_syscall_64+0xfa/0x3b0
[  484.695333][T18445]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.695350][T18445]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.695361][T18445]  ? clear_bhb_loop+0x60/0xb0
[  484.695377][T18445]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.695388][T18445] RIP: 0033:0x7fec16f8d3df
[  484.695400][T18445] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.695410][T18445] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.695424][T18445] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.695432][T18445] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.695440][T18445] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.695448][T18445] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.695455][T18445] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.695476][T18445]  </TASK>
[  484.722472][T18447] FAULT_INJECTION: forcing a failure.
[  484.722472][T18447] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.722497][T18447] CPU: 0 UID: 0 PID: 18447 Comm: syz.0.5939 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.722510][T18447] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.722517][T18447] Call Trace:
[  484.722522][T18447]  <TASK>
[  484.722527][T18447]  dump_stack_lvl+0x189/0x250
[  484.722547][T18447]  ? __pfx____ratelimit+0x10/0x10
[  484.722566][T18447]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.722579][T18447]  ? __pfx__printk+0x10/0x10
[  484.722602][T18447]  should_fail_ex+0x414/0x560
[  484.722622][T18447]  _copy_to_user+0x31/0xb0
[  484.722636][T18447]  simple_read_from_buffer+0xe1/0x170
[  484.722654][T18447]  proc_fail_nth_read+0x1b3/0x220
[  484.722674][T18447]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  484.722692][T18447]  ? rw_verify_area+0x2a6/0x4d0
[  484.722702][T18447]  ? __lock_acquire+0xab9/0xd20
[  484.722717][T18447]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  484.722741][T18447]  vfs_read+0x1fd/0x980
[  484.722753][T18447]  ? fdget_pos+0x247/0x320
[  484.722769][T18447]  ? __pfx___mutex_lock+0x10/0x10
[  484.722781][T18447]  ? __pfx_vfs_read+0x10/0x10
[  484.722794][T18447]  ? __fget_files+0x2a/0x420
[  484.722809][T18447]  ? __fget_files+0x3a0/0x420
[  484.722821][T18447]  ? __fget_files+0x2a/0x420
[  484.722841][T18447]  ksys_read+0x145/0x250
[  484.722850][T18447]  ? __fget_files+0x3a0/0x420
[  484.722863][T18447]  ? __pfx_ksys_read+0x10/0x10
[  484.722878][T18447]  ? do_syscall_64+0xbe/0x3b0
[  484.722891][T18447]  do_syscall_64+0xfa/0x3b0
[  484.722901][T18447]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.722916][T18447]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.722927][T18447]  ? clear_bhb_loop+0x60/0xb0
[  484.722939][T18447]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.722948][T18447] RIP: 0033:0x7fec16f8d33c
[  484.722959][T18447] 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
[  484.722969][T18447] RSP: 002b:00007fec17d19030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  484.722981][T18447] RAX: ffffffffffffffda RBX: 00007fec171b5fa0 RCX: 00007fec16f8d33c
[  484.722989][T18447] RDX: 000000000000000f RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.722996][T18447] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.723003][T18447] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  484.723017][T18447] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.723034][T18447]  </TASK>
[  484.753525][T18449] FAULT_INJECTION: forcing a failure.
[  484.753525][T18449] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.753557][T18449] CPU: 0 UID: 0 PID: 18449 Comm: syz.0.5940 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.753572][T18449] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.753580][T18449] Call Trace:
[  484.753586][T18449]  <TASK>
[  484.753592][T18449]  dump_stack_lvl+0x189/0x250
[  484.753613][T18449]  ? __pfx____ratelimit+0x10/0x10
[  484.753632][T18449]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.753648][T18449]  ? __pfx__printk+0x10/0x10
[  484.753665][T18449]  ? __might_fault+0xb0/0x130
[  484.753687][T18449]  should_fail_ex+0x414/0x560
[  484.753707][T18449]  _copy_from_user+0x2d/0xb0
[  484.753724][T18449]  kstrtouint_from_user+0xc4/0x170
[  484.753745][T18449]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.753776][T18449]  proc_fail_nth_write+0x88/0x200
[  484.753797][T18449]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.753819][T18449]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.753837][T18449]  vfs_write+0x27b/0xa90
[  484.753859][T18449]  ? __pfx_vfs_write+0x10/0x10
[  484.753873][T18449]  ? __fget_files+0x2a/0x420
[  484.753892][T18449]  ? __fget_files+0x3a0/0x420
[  484.753906][T18449]  ? __fget_files+0x2a/0x420
[  484.753928][T18449]  ksys_write+0x145/0x250
[  484.753940][T18449]  ? __fget_files+0x3a0/0x420
[  484.753963][T18449]  ? __pfx_ksys_write+0x10/0x10
[  484.753981][T18449]  ? do_syscall_64+0xbe/0x3b0
[  484.753996][T18449]  do_syscall_64+0xfa/0x3b0
[  484.754007][T18449]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.754024][T18449]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.754034][T18449]  ? clear_bhb_loop+0x60/0xb0
[  484.754048][T18449]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.754059][T18449] RIP: 0033:0x7fec16f8d3df
[  484.754073][T18449] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.754084][T18449] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.754098][T18449] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.754107][T18449] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.754114][T18449] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.754121][T18449] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.754127][T18449] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.754148][T18449]  </TASK>
[  484.787409][T18451] FAULT_INJECTION: forcing a failure.
[  484.787409][T18451] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.787433][T18451] CPU: 0 UID: 0 PID: 18451 Comm: syz.0.5941 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.787446][T18451] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.787454][T18451] Call Trace:
[  484.787459][T18451]  <TASK>
[  484.787464][T18451]  dump_stack_lvl+0x189/0x250
[  484.787482][T18451]  ? __pfx____ratelimit+0x10/0x10
[  484.787499][T18451]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.787510][T18451]  ? __pfx__printk+0x10/0x10
[  484.787529][T18451]  should_fail_ex+0x414/0x560
[  484.787547][T18451]  _copy_to_user+0x31/0xb0
[  484.787560][T18451]  simple_read_from_buffer+0xe1/0x170
[  484.787576][T18451]  proc_fail_nth_read+0x1b3/0x220
[  484.787595][T18451]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  484.787612][T18451]  ? rw_verify_area+0x2a6/0x4d0
[  484.787627][T18451]  ? __lock_acquire+0xab9/0xd20
[  484.787641][T18451]  ? __pfx_proc_fail_nth_read+0x10/0x10
[  484.787651][T18451]  vfs_read+0x1fd/0x980
[  484.787658][T18451]  ? fdget_pos+0x247/0x320
[  484.787668][T18451]  ? __pfx___mutex_lock+0x10/0x10
[  484.787675][T18451]  ? __pfx_vfs_read+0x10/0x10
[  484.787682][T18451]  ? __fget_files+0x2a/0x420
[  484.787692][T18451]  ? __fget_files+0x3a0/0x420
[  484.787703][T18451]  ? __fget_files+0x2a/0x420
[  484.787719][T18451]  ksys_read+0x145/0x250
[  484.787730][T18451]  ? __fget_files+0x3a0/0x420
[  484.787752][T18451]  ? __pfx_ksys_read+0x10/0x10
[  484.787767][T18451]  ? do_syscall_64+0xbe/0x3b0
[  484.787781][T18451]  do_syscall_64+0xfa/0x3b0
[  484.787786][T18451]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.787795][T18451]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.787802][T18451]  ? clear_bhb_loop+0x60/0xb0
[  484.787814][T18451]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.787823][T18451] RIP: 0033:0x7fec16f8d33c
[  484.787833][T18451] 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
[  484.787843][T18451] RSP: 002b:00007fec17d19030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  484.787857][T18451] RAX: ffffffffffffffda RBX: 00007fec171b5fa0 RCX: 00007fec16f8d33c
[  484.787865][T18451] RDX: 000000000000000f RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.787871][T18451] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.787878][T18451] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[  484.787884][T18451] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.787900][T18451]  </TASK>
[  484.823723][T18453] FAULT_INJECTION: forcing a failure.
[  484.823723][T18453] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.823755][T18453] CPU: 0 UID: 0 PID: 18453 Comm: syz.0.5942 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.823770][T18453] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.823778][T18453] Call Trace:
[  484.823784][T18453]  <TASK>
[  484.823790][T18453]  dump_stack_lvl+0x189/0x250
[  484.823814][T18453]  ? __pfx____ratelimit+0x10/0x10
[  484.823837][T18453]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.823853][T18453]  ? __pfx__printk+0x10/0x10
[  484.823871][T18453]  ? __might_fault+0xb0/0x130
[  484.823894][T18453]  should_fail_ex+0x414/0x560
[  484.823915][T18453]  _copy_from_user+0x2d/0xb0
[  484.823933][T18453]  kstrtouint_from_user+0xc4/0x170
[  484.823970][T18453]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.824002][T18453]  proc_fail_nth_write+0x88/0x200
[  484.824020][T18453]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.824041][T18453]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.824060][T18453]  vfs_write+0x27b/0xa90
[  484.824080][T18453]  ? __pfx_vfs_write+0x10/0x10
[  484.824093][T18453]  ? __fget_files+0x2a/0x420
[  484.824111][T18453]  ? __fget_files+0x3a0/0x420
[  484.824124][T18453]  ? __fget_files+0x2a/0x420
[  484.824144][T18453]  ksys_write+0x145/0x250
[  484.824157][T18453]  ? __fget_files+0x3a0/0x420
[  484.824172][T18453]  ? __pfx_ksys_write+0x10/0x10
[  484.824188][T18453]  ? do_syscall_64+0xbe/0x3b0
[  484.824203][T18453]  do_syscall_64+0xfa/0x3b0
[  484.824213][T18453]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.824232][T18453]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.824244][T18453]  ? clear_bhb_loop+0x60/0xb0
[  484.824258][T18453]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.824269][T18453] RIP: 0033:0x7fec16f8d3df
[  484.824285][T18453] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.824295][T18453] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.824307][T18453] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.824315][T18453] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.824321][T18453] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.824328][T18453] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.824334][T18453] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.824351][T18453]  </TASK>
[  484.846333][T18455] FAULT_INJECTION: forcing a failure.
[  484.846333][T18455] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.846361][T18455] CPU: 0 UID: 0 PID: 18455 Comm: syz.0.5943 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.846374][T18455] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.846381][T18455] Call Trace:
[  484.846387][T18455]  <TASK>
[  484.846392][T18455]  dump_stack_lvl+0x189/0x250
[  484.846411][T18455]  ? __pfx____ratelimit+0x10/0x10
[  484.846428][T18455]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.846441][T18455]  ? __pfx__printk+0x10/0x10
[  484.846456][T18455]  ? __might_fault+0xb0/0x130
[  484.846474][T18455]  should_fail_ex+0x414/0x560
[  484.846493][T18455]  _copy_from_user+0x2d/0xb0
[  484.846508][T18455]  kstrtouint_from_user+0xc4/0x170
[  484.846526][T18455]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.846552][T18455]  proc_fail_nth_write+0x88/0x200
[  484.846569][T18455]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.846590][T18455]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.846606][T18455]  vfs_write+0x27b/0xa90
[  484.846622][T18455]  ? __pfx_vfs_write+0x10/0x10
[  484.846633][T18455]  ? __fget_files+0x2a/0x420
[  484.846648][T18455]  ? __fget_files+0x3a0/0x420
[  484.846659][T18455]  ? __fget_files+0x2a/0x420
[  484.846678][T18455]  ksys_write+0x145/0x250
[  484.846689][T18455]  ? __fget_files+0x3a0/0x420
[  484.846703][T18455]  ? __pfx_ksys_write+0x10/0x10
[  484.846716][T18455]  ? do_syscall_64+0xbe/0x3b0
[  484.846730][T18455]  do_syscall_64+0xfa/0x3b0
[  484.846739][T18455]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.846755][T18455]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.846766][T18455]  ? clear_bhb_loop+0x60/0xb0
[  484.846779][T18455]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.846790][T18455] RIP: 0033:0x7fec16f8d3df
[  484.846800][T18455] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.846809][T18455] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.846821][T18455] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.846829][T18455] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.846835][T18455] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.846841][T18455] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.846847][T18455] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.846864][T18455]  </TASK>
[  484.877443][T18457] FAULT_INJECTION: forcing a failure.
[  484.877443][T18457] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.877468][T18457] CPU: 0 UID: 0 PID: 18457 Comm: syz.0.5944 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.877480][T18457] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.877487][T18457] Call Trace:
[  484.877492][T18457]  <TASK>
[  484.877497][T18457]  dump_stack_lvl+0x189/0x250
[  484.877515][T18457]  ? __pfx____ratelimit+0x10/0x10
[  484.877532][T18457]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.877544][T18457]  ? __pfx__printk+0x10/0x10
[  484.877559][T18457]  ? __might_fault+0xb0/0x130
[  484.877579][T18457]  should_fail_ex+0x414/0x560
[  484.877605][T18457]  _copy_from_user+0x2d/0xb0
[  484.877618][T18457]  kstrtouint_from_user+0xc4/0x170
[  484.877634][T18457]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.877660][T18457]  proc_fail_nth_write+0x88/0x200
[  484.877678][T18457]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.877704][T18457]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.877718][T18457]  vfs_write+0x27b/0xa90
[  484.877735][T18457]  ? __pfx_vfs_write+0x10/0x10
[  484.877747][T18457]  ? __fget_files+0x2a/0x420
[  484.877763][T18457]  ? __fget_files+0x3a0/0x420
[  484.877774][T18457]  ? __fget_files+0x2a/0x420
[  484.877792][T18457]  ksys_write+0x145/0x250
[  484.877803][T18457]  ? __fget_files+0x3a0/0x420
[  484.877816][T18457]  ? __pfx_ksys_write+0x10/0x10
[  484.877832][T18457]  ? do_syscall_64+0xbe/0x3b0
[  484.877844][T18457]  do_syscall_64+0xfa/0x3b0
[  484.877850][T18457]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.877860][T18457]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.877866][T18457]  ? clear_bhb_loop+0x60/0xb0
[  484.877875][T18457]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.877881][T18457] RIP: 0033:0x7fec16f8d3df
[  484.877889][T18457] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.877895][T18457] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.877904][T18457] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.877909][T18457] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.877914][T18457] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.877918][T18457] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.877922][T18457] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.877933][T18457]  </TASK>
[  484.910984][T18459] FAULT_INJECTION: forcing a failure.
[  484.910984][T18459] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.911010][T18459] CPU: 0 UID: 0 PID: 18459 Comm: syz.0.5945 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.911021][T18459] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.911026][T18459] Call Trace:
[  484.911030][T18459]  <TASK>
[  484.911034][T18459]  dump_stack_lvl+0x189/0x250
[  484.911049][T18459]  ? __pfx____ratelimit+0x10/0x10
[  484.911061][T18459]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.911070][T18459]  ? __pfx__printk+0x10/0x10
[  484.911083][T18459]  ? __might_fault+0xb0/0x130
[  484.911104][T18459]  should_fail_ex+0x414/0x560
[  484.911124][T18459]  _copy_from_user+0x2d/0xb0
[  484.911140][T18459]  kstrtouint_from_user+0xc4/0x170
[  484.911160][T18459]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.911185][T18459]  proc_fail_nth_write+0x88/0x200
[  484.911197][T18459]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.911211][T18459]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.911229][T18459]  vfs_write+0x27b/0xa90
[  484.911249][T18459]  ? __pfx_vfs_write+0x10/0x10
[  484.911264][T18459]  ? __fget_files+0x2a/0x420
[  484.911280][T18459]  ? __fget_files+0x3a0/0x420
[  484.911292][T18459]  ? __fget_files+0x2a/0x420
[  484.911312][T18459]  ksys_write+0x145/0x250
[  484.911324][T18459]  ? __fget_files+0x3a0/0x420
[  484.911338][T18459]  ? __pfx_ksys_write+0x10/0x10
[  484.911355][T18459]  ? do_syscall_64+0xbe/0x3b0
[  484.911366][T18459]  do_syscall_64+0xfa/0x3b0
[  484.911372][T18459]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.911386][T18459]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.911396][T18459]  ? clear_bhb_loop+0x60/0xb0
[  484.911409][T18459]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.911419][T18459] RIP: 0033:0x7fec16f8d3df
[  484.911430][T18459] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.911440][T18459] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.911453][T18459] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.911462][T18459] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.911469][T18459] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.911476][T18459] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.911481][T18459] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.911499][T18459]  </TASK>
[  484.945291][T18461] FAULT_INJECTION: forcing a failure.
[  484.945291][T18461] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.945318][T18461] CPU: 0 UID: 0 PID: 18461 Comm: syz.0.5946 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.945331][T18461] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.945338][T18461] Call Trace:
[  484.945343][T18461]  <TASK>
[  484.945348][T18461]  dump_stack_lvl+0x189/0x250
[  484.945366][T18461]  ? __pfx____ratelimit+0x10/0x10
[  484.945383][T18461]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.945396][T18461]  ? __pfx__printk+0x10/0x10
[  484.945409][T18461]  ? __might_fault+0xb0/0x130
[  484.945427][T18461]  should_fail_ex+0x414/0x560
[  484.945445][T18461]  _copy_from_user+0x2d/0xb0
[  484.945459][T18461]  kstrtouint_from_user+0xc4/0x170
[  484.945477][T18461]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.945502][T18461]  proc_fail_nth_write+0x88/0x200
[  484.945518][T18461]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.945537][T18461]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.945553][T18461]  vfs_write+0x27b/0xa90
[  484.945572][T18461]  ? __pfx_vfs_write+0x10/0x10
[  484.945585][T18461]  ? __fget_files+0x2a/0x420
[  484.945601][T18461]  ? __fget_files+0x3a0/0x420
[  484.945613][T18461]  ? __fget_files+0x2a/0x420
[  484.945631][T18461]  ksys_write+0x145/0x250
[  484.945644][T18461]  ? __fget_files+0x3a0/0x420
[  484.945658][T18461]  ? __pfx_ksys_write+0x10/0x10
[  484.945673][T18461]  ? do_syscall_64+0xbe/0x3b0
[  484.945686][T18461]  do_syscall_64+0xfa/0x3b0
[  484.945695][T18461]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.945720][T18461]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.945731][T18461]  ? clear_bhb_loop+0x60/0xb0
[  484.945744][T18461]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.945754][T18461] RIP: 0033:0x7fec16f8d3df
[  484.945764][T18461] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.945773][T18461] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.945785][T18461] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.945792][T18461] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.945799][T18461] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.945805][T18461] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.945811][T18461] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.945829][T18461]  </TASK>
[  484.975853][T18463] FAULT_INJECTION: forcing a failure.
[  484.975853][T18463] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  484.975879][T18463] CPU: 0 UID: 0 PID: 18463 Comm: syz.0.5947 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  484.975891][T18463] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  484.975898][T18463] Call Trace:
[  484.975904][T18463]  <TASK>
[  484.975908][T18463]  dump_stack_lvl+0x189/0x250
[  484.975926][T18463]  ? __pfx____ratelimit+0x10/0x10
[  484.975942][T18463]  ? __pfx_dump_stack_lvl+0x10/0x10
[  484.975956][T18463]  ? __pfx__printk+0x10/0x10
[  484.975969][T18463]  ? __might_fault+0xb0/0x130
[  484.975989][T18463]  should_fail_ex+0x414/0x560
[  484.976008][T18463]  _copy_from_user+0x2d/0xb0
[  484.976022][T18463]  kstrtouint_from_user+0xc4/0x170
[  484.976040][T18463]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  484.976067][T18463]  proc_fail_nth_write+0x88/0x200
[  484.976083][T18463]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.976101][T18463]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  484.976117][T18463]  vfs_write+0x27b/0xa90
[  484.976135][T18463]  ? __pfx_vfs_write+0x10/0x10
[  484.976148][T18463]  ? __fget_files+0x2a/0x420
[  484.976169][T18463]  ? __fget_files+0x3a0/0x420
[  484.976180][T18463]  ? __fget_files+0x2a/0x420
[  484.976198][T18463]  ksys_write+0x145/0x250
[  484.976209][T18463]  ? __fget_files+0x3a0/0x420
[  484.976223][T18463]  ? __pfx_ksys_write+0x10/0x10
[  484.976237][T18463]  ? do_syscall_64+0xbe/0x3b0
[  484.976250][T18463]  do_syscall_64+0xfa/0x3b0
[  484.976260][T18463]  ? lockdep_hardirqs_on+0x9c/0x150
[  484.976275][T18463]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.976285][T18463]  ? clear_bhb_loop+0x60/0xb0
[  484.976297][T18463]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  484.976307][T18463] RIP: 0033:0x7fec16f8d3df
[  484.976322][T18463] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  484.976331][T18463] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  484.976344][T18463] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  484.976352][T18463] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  484.976359][T18463] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  484.976366][T18463] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  484.976376][T18463] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  484.976398][T18463]  </TASK>
[  485.009737][T18465] FAULT_INJECTION: forcing a failure.
[  485.009737][T18465] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.009762][T18465] CPU: 0 UID: 0 PID: 18465 Comm: syz.0.5948 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.009774][T18465] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.009782][T18465] Call Trace:
[  485.009787][T18465]  <TASK>
[  485.009791][T18465]  dump_stack_lvl+0x189/0x250
[  485.009808][T18465]  ? __pfx____ratelimit+0x10/0x10
[  485.009826][T18465]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.009838][T18465]  ? __pfx__printk+0x10/0x10
[  485.009853][T18465]  ? __might_fault+0xb0/0x130
[  485.009872][T18465]  should_fail_ex+0x414/0x560
[  485.009889][T18465]  _copy_from_user+0x2d/0xb0
[  485.009902][T18465]  kstrtouint_from_user+0xc4/0x170
[  485.009919][T18465]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.009945][T18465]  proc_fail_nth_write+0x88/0x200
[  485.009962][T18465]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.009980][T18465]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.009996][T18465]  vfs_write+0x27b/0xa90
[  485.010014][T18465]  ? __pfx_vfs_write+0x10/0x10
[  485.010027][T18465]  ? __fget_files+0x2a/0x420
[  485.010045][T18465]  ? __fget_files+0x3a0/0x420
[  485.010058][T18465]  ? __fget_files+0x2a/0x420
[  485.010077][T18465]  ksys_write+0x145/0x250
[  485.010088][T18465]  ? __fget_files+0x3a0/0x420
[  485.010101][T18465]  ? __pfx_ksys_write+0x10/0x10
[  485.010117][T18465]  ? do_syscall_64+0xbe/0x3b0
[  485.010131][T18465]  do_syscall_64+0xfa/0x3b0
[  485.010140][T18465]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.010155][T18465]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.010166][T18465]  ? clear_bhb_loop+0x60/0xb0
[  485.010179][T18465]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.010189][T18465] RIP: 0033:0x7fec16f8d3df
[  485.010199][T18465] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.010207][T18465] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.010220][T18465] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.010228][T18465] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.010234][T18465] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.010240][T18465] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.010247][T18465] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.010264][T18465]  </TASK>
[  485.041751][T18467] FAULT_INJECTION: forcing a failure.
[  485.041751][T18467] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.041778][T18467] CPU: 0 UID: 0 PID: 18467 Comm: syz.0.5949 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.041788][T18467] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.041793][T18467] Call Trace:
[  485.041798][T18467]  <TASK>
[  485.041802][T18467]  dump_stack_lvl+0x189/0x250
[  485.041815][T18467]  ? __pfx____ratelimit+0x10/0x10
[  485.041827][T18467]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.041835][T18467]  ? __pfx__printk+0x10/0x10
[  485.041845][T18467]  ? __might_fault+0xb0/0x130
[  485.041858][T18467]  should_fail_ex+0x414/0x560
[  485.041871][T18467]  _copy_from_user+0x2d/0xb0
[  485.041881][T18467]  kstrtouint_from_user+0xc4/0x170
[  485.041897][T18467]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.041921][T18467]  proc_fail_nth_write+0x88/0x200
[  485.041948][T18467]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.041966][T18467]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.041983][T18467]  vfs_write+0x27b/0xa90
[  485.042001][T18467]  ? __pfx_vfs_write+0x10/0x10
[  485.042013][T18467]  ? __fget_files+0x2a/0x420
[  485.042029][T18467]  ? __fget_files+0x3a0/0x420
[  485.042041][T18467]  ? __fget_files+0x2a/0x420
[  485.042061][T18467]  ksys_write+0x145/0x250
[  485.042072][T18467]  ? __fget_files+0x3a0/0x420
[  485.042085][T18467]  ? __pfx_ksys_write+0x10/0x10
[  485.042102][T18467]  ? do_syscall_64+0xbe/0x3b0
[  485.042115][T18467]  do_syscall_64+0xfa/0x3b0
[  485.042125][T18467]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.042142][T18467]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.042152][T18467]  ? clear_bhb_loop+0x60/0xb0
[  485.042165][T18467]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.042174][T18467] RIP: 0033:0x7fec16f8d3df
[  485.042185][T18467] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.042194][T18467] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.042206][T18467] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.042214][T18467] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.042221][T18467] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.042228][T18467] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.042234][T18467] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.042252][T18467]  </TASK>
[  485.074058][T18469] FAULT_INJECTION: forcing a failure.
[  485.074058][T18469] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.074087][T18469] CPU: 0 UID: 0 PID: 18469 Comm: syz.0.5950 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.074100][T18469] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.074108][T18469] Call Trace:
[  485.074113][T18469]  <TASK>
[  485.074118][T18469]  dump_stack_lvl+0x189/0x250
[  485.074142][T18469]  ? __pfx____ratelimit+0x10/0x10
[  485.074160][T18469]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.074173][T18469]  ? __pfx__printk+0x10/0x10
[  485.074188][T18469]  ? __might_fault+0xb0/0x130
[  485.074209][T18469]  should_fail_ex+0x414/0x560
[  485.074224][T18469]  _copy_from_user+0x2d/0xb0
[  485.074233][T18469]  kstrtouint_from_user+0xc4/0x170
[  485.074244][T18469]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.074259][T18469]  proc_fail_nth_write+0x88/0x200
[  485.074275][T18469]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.074291][T18469]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.074306][T18469]  vfs_write+0x27b/0xa90
[  485.074324][T18469]  ? __pfx_vfs_write+0x10/0x10
[  485.074336][T18469]  ? __fget_files+0x2a/0x420
[  485.074352][T18469]  ? __fget_files+0x3a0/0x420
[  485.074364][T18469]  ? __fget_files+0x2a/0x420
[  485.074383][T18469]  ksys_write+0x145/0x250
[  485.074393][T18469]  ? __fget_files+0x3a0/0x420
[  485.074402][T18469]  ? __pfx_ksys_write+0x10/0x10
[  485.074411][T18469]  ? do_syscall_64+0xbe/0x3b0
[  485.074420][T18469]  do_syscall_64+0xfa/0x3b0
[  485.074426][T18469]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.074436][T18469]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.074442][T18469]  ? clear_bhb_loop+0x60/0xb0
[  485.074455][T18469]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.074464][T18469] RIP: 0033:0x7fec16f8d3df
[  485.074475][T18469] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.074484][T18469] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.074497][T18469] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.074505][T18469] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.074511][T18469] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.074518][T18469] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.074525][T18469] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.074538][T18469]  </TASK>
[  485.110319][T18471] FAULT_INJECTION: forcing a failure.
[  485.110319][T18471] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.110345][T18471] CPU: 0 UID: 0 PID: 18471 Comm: syz.0.5951 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.110356][T18471] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.110363][T18471] Call Trace:
[  485.110369][T18471]  <TASK>
[  485.110374][T18471]  dump_stack_lvl+0x189/0x250
[  485.110394][T18471]  ? __pfx____ratelimit+0x10/0x10
[  485.110411][T18471]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.110422][T18471]  ? __pfx__printk+0x10/0x10
[  485.110435][T18471]  ? __might_fault+0xb0/0x130
[  485.110456][T18471]  should_fail_ex+0x414/0x560
[  485.110476][T18471]  _copy_from_user+0x2d/0xb0
[  485.110490][T18471]  kstrtouint_from_user+0xc4/0x170
[  485.110508][T18471]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.110533][T18471]  proc_fail_nth_write+0x88/0x200
[  485.110550][T18471]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.110568][T18471]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.110583][T18471]  vfs_write+0x27b/0xa90
[  485.110602][T18471]  ? __pfx_vfs_write+0x10/0x10
[  485.110614][T18471]  ? __fget_files+0x2a/0x420
[  485.110630][T18471]  ? __fget_files+0x3a0/0x420
[  485.110640][T18471]  ? __fget_files+0x2a/0x420
[  485.110659][T18471]  ksys_write+0x145/0x250
[  485.110670][T18471]  ? __fget_files+0x3a0/0x420
[  485.110682][T18471]  ? __pfx_ksys_write+0x10/0x10
[  485.110697][T18471]  ? do_syscall_64+0xbe/0x3b0
[  485.110709][T18471]  do_syscall_64+0xfa/0x3b0
[  485.110716][T18471]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.110727][T18471]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.110734][T18471]  ? clear_bhb_loop+0x60/0xb0
[  485.110745][T18471]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.110754][T18471] RIP: 0033:0x7fec16f8d3df
[  485.110765][T18471] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.110774][T18471] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.110786][T18471] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.110801][T18471] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.110806][T18471] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.110812][T18471] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.110819][T18471] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.110837][T18471]  </TASK>
[  485.143255][T18473] FAULT_INJECTION: forcing a failure.
[  485.143255][T18473] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.143281][T18473] CPU: 0 UID: 0 PID: 18473 Comm: syz.0.5952 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.143295][T18473] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.143300][T18473] Call Trace:
[  485.143304][T18473]  <TASK>
[  485.143307][T18473]  dump_stack_lvl+0x189/0x250
[  485.143320][T18473]  ? __pfx____ratelimit+0x10/0x10
[  485.143332][T18473]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.143339][T18473]  ? __pfx__printk+0x10/0x10
[  485.143348][T18473]  ? __might_fault+0xb0/0x130
[  485.143364][T18473]  should_fail_ex+0x414/0x560
[  485.143381][T18473]  _copy_from_user+0x2d/0xb0
[  485.143394][T18473]  kstrtouint_from_user+0xc4/0x170
[  485.143412][T18473]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.143439][T18473]  proc_fail_nth_write+0x88/0x200
[  485.143455][T18473]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.143466][T18473]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.143476][T18473]  vfs_write+0x27b/0xa90
[  485.143491][T18473]  ? __pfx_vfs_write+0x10/0x10
[  485.143503][T18473]  ? __fget_files+0x2a/0x420
[  485.143520][T18473]  ? __fget_files+0x3a0/0x420
[  485.143531][T18473]  ? __fget_files+0x2a/0x420
[  485.143548][T18473]  ksys_write+0x145/0x250
[  485.143559][T18473]  ? __fget_files+0x3a0/0x420
[  485.143573][T18473]  ? __pfx_ksys_write+0x10/0x10
[  485.143588][T18473]  ? do_syscall_64+0xbe/0x3b0
[  485.143601][T18473]  do_syscall_64+0xfa/0x3b0
[  485.143610][T18473]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.143624][T18473]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.143633][T18473]  ? clear_bhb_loop+0x60/0xb0
[  485.143646][T18473]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.143655][T18473] RIP: 0033:0x7fec16f8d3df
[  485.143666][T18473] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.143676][T18473] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.143688][T18473] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.143695][T18473] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.143701][T18473] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.143707][T18473] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.143713][T18473] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.143741][T18473]  </TASK>
[  485.183215][T18475] FAULT_INJECTION: forcing a failure.
[  485.183215][T18475] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.183245][T18475] CPU: 0 UID: 0 PID: 18475 Comm: syz.0.5953 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.183257][T18475] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.183264][T18475] Call Trace:
[  485.183269][T18475]  <TASK>
[  485.183274][T18475]  dump_stack_lvl+0x189/0x250
[  485.183293][T18475]  ? __pfx____ratelimit+0x10/0x10
[  485.183310][T18475]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.183322][T18475]  ? __pfx__printk+0x10/0x10
[  485.183337][T18475]  ? __might_fault+0xb0/0x130
[  485.183356][T18475]  should_fail_ex+0x414/0x560
[  485.183374][T18475]  _copy_from_user+0x2d/0xb0
[  485.183389][T18475]  kstrtouint_from_user+0xc4/0x170
[  485.183406][T18475]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.183432][T18475]  proc_fail_nth_write+0x88/0x200
[  485.183449][T18475]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.183467][T18475]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.183483][T18475]  vfs_write+0x27b/0xa90
[  485.183502][T18475]  ? __pfx_vfs_write+0x10/0x10
[  485.183514][T18475]  ? __fget_files+0x2a/0x420
[  485.183530][T18475]  ? __fget_files+0x3a0/0x420
[  485.183542][T18475]  ? __fget_files+0x2a/0x420
[  485.183559][T18475]  ksys_write+0x145/0x250
[  485.183569][T18475]  ? __fget_files+0x3a0/0x420
[  485.183582][T18475]  ? __pfx_ksys_write+0x10/0x10
[  485.183597][T18475]  ? do_syscall_64+0xbe/0x3b0
[  485.183610][T18475]  do_syscall_64+0xfa/0x3b0
[  485.183621][T18475]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.183637][T18475]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.183648][T18475]  ? clear_bhb_loop+0x60/0xb0
[  485.183661][T18475]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.183671][T18475] RIP: 0033:0x7fec16f8d3df
[  485.183681][T18475] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.183691][T18475] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.183703][T18475] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.183710][T18475] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.183716][T18475] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.183734][T18475] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.183740][T18475] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.183758][T18475]  </TASK>
[  485.212810][T18477] FAULT_INJECTION: forcing a failure.
[  485.212810][T18477] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.212831][T18477] CPU: 0 UID: 0 PID: 18477 Comm: syz.0.5954 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.212842][T18477] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.212849][T18477] Call Trace:
[  485.212853][T18477]  <TASK>
[  485.212857][T18477]  dump_stack_lvl+0x189/0x250
[  485.212872][T18477]  ? __pfx____ratelimit+0x10/0x10
[  485.212886][T18477]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.212895][T18477]  ? __pfx__printk+0x10/0x10
[  485.212907][T18477]  ? __might_fault+0xb0/0x130
[  485.212922][T18477]  should_fail_ex+0x414/0x560
[  485.212937][T18477]  _copy_from_user+0x2d/0xb0
[  485.212949][T18477]  kstrtouint_from_user+0xc4/0x170
[  485.212969][T18477]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.213001][T18477]  proc_fail_nth_write+0x88/0x200
[  485.213021][T18477]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.213044][T18477]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.213063][T18477]  vfs_write+0x27b/0xa90
[  485.213083][T18477]  ? __pfx_vfs_write+0x10/0x10
[  485.213098][T18477]  ? __fget_files+0x2a/0x420
[  485.213118][T18477]  ? __fget_files+0x3a0/0x420
[  485.213132][T18477]  ? __fget_files+0x2a/0x420
[  485.213154][T18477]  ksys_write+0x145/0x250
[  485.213168][T18477]  ? __fget_files+0x3a0/0x420
[  485.213178][T18477]  ? __pfx_ksys_write+0x10/0x10
[  485.213193][T18477]  ? do_syscall_64+0xbe/0x3b0
[  485.213207][T18477]  do_syscall_64+0xfa/0x3b0
[  485.213218][T18477]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.213236][T18477]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.213248][T18477]  ? clear_bhb_loop+0x60/0xb0
[  485.213262][T18477]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.213273][T18477] RIP: 0033:0x7fec16f8d3df
[  485.213285][T18477] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.213297][T18477] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.213311][T18477] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.213321][T18477] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.213329][T18477] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.213338][T18477] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.213347][T18477] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.213368][T18477]  </TASK>
[  485.229300][T18479] FAULT_INJECTION: forcing a failure.
[  485.229300][T18479] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.229336][T18479] CPU: 0 UID: 0 PID: 18479 Comm: syz.0.5955 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.229352][T18479] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.229361][T18479] Call Trace:
[  485.229366][T18479]  <TASK>
[  485.229373][T18479]  dump_stack_lvl+0x189/0x250
[  485.229395][T18479]  ? __pfx____ratelimit+0x10/0x10
[  485.229416][T18479]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.229432][T18479]  ? __pfx__printk+0x10/0x10
[  485.229450][T18479]  ? __might_fault+0xb0/0x130
[  485.229475][T18479]  should_fail_ex+0x414/0x560
[  485.229498][T18479]  _copy_from_user+0x2d/0xb0
[  485.229515][T18479]  kstrtouint_from_user+0xc4/0x170
[  485.229537][T18479]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.229571][T18479]  proc_fail_nth_write+0x88/0x200
[  485.229592][T18479]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.229615][T18479]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.229635][T18479]  vfs_write+0x27b/0xa90
[  485.229657][T18479]  ? __pfx_vfs_write+0x10/0x10
[  485.229673][T18479]  ? __fget_files+0x2a/0x420
[  485.229691][T18479]  ? __fget_files+0x3a0/0x420
[  485.229706][T18479]  ? __fget_files+0x2a/0x420
[  485.229738][T18479]  ksys_write+0x145/0x250
[  485.229752][T18479]  ? __fget_files+0x3a0/0x420
[  485.229767][T18479]  ? __pfx_ksys_write+0x10/0x10
[  485.229784][T18479]  ? do_syscall_64+0xbe/0x3b0
[  485.229801][T18479]  do_syscall_64+0xfa/0x3b0
[  485.229812][T18479]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.229831][T18479]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.229843][T18479]  ? clear_bhb_loop+0x60/0xb0
[  485.229858][T18479]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.229870][T18479] RIP: 0033:0x7fec16f8d3df
[  485.229883][T18479] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.229895][T18479] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.229910][T18479] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.229920][T18479] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.229928][T18479] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.229936][T18479] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.229943][T18479] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.229967][T18479]  </TASK>
[  485.265760][T18481] FAULT_INJECTION: forcing a failure.
[  485.265760][T18481] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.265787][T18481] CPU: 0 UID: 0 PID: 18481 Comm: syz.0.5956 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.265800][T18481] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.265807][T18481] Call Trace:
[  485.265812][T18481]  <TASK>
[  485.265817][T18481]  dump_stack_lvl+0x189/0x250
[  485.265835][T18481]  ? __pfx____ratelimit+0x10/0x10
[  485.265853][T18481]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.265865][T18481]  ? __pfx__printk+0x10/0x10
[  485.265881][T18481]  ? __might_fault+0xb0/0x130
[  485.265900][T18481]  should_fail_ex+0x414/0x560
[  485.265918][T18481]  _copy_from_user+0x2d/0xb0
[  485.265940][T18481]  kstrtouint_from_user+0xc4/0x170
[  485.265959][T18481]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.265982][T18481]  proc_fail_nth_write+0x88/0x200
[  485.265998][T18481]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.266017][T18481]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.266033][T18481]  vfs_write+0x27b/0xa90
[  485.266051][T18481]  ? __pfx_vfs_write+0x10/0x10
[  485.266063][T18481]  ? __fget_files+0x2a/0x420
[  485.266078][T18481]  ? __fget_files+0x3a0/0x420
[  485.266088][T18481]  ? __fget_files+0x2a/0x420
[  485.266107][T18481]  ksys_write+0x145/0x250
[  485.266118][T18481]  ? __fget_files+0x3a0/0x420
[  485.266131][T18481]  ? __pfx_ksys_write+0x10/0x10
[  485.266146][T18481]  ? do_syscall_64+0xbe/0x3b0
[  485.266158][T18481]  do_syscall_64+0xfa/0x3b0
[  485.266167][T18481]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.266183][T18481]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.266193][T18481]  ? clear_bhb_loop+0x60/0xb0
[  485.266207][T18481]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.266218][T18481] RIP: 0033:0x7fec16f8d3df
[  485.266228][T18481] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.266237][T18481] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.266250][T18481] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.266257][T18481] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.266264][T18481] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.266270][T18481] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.266276][T18481] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.266294][T18481]  </TASK>
[  485.308194][T18483] FAULT_INJECTION: forcing a failure.
[  485.308194][T18483] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.308222][T18483] CPU: 0 UID: 0 PID: 18483 Comm: syz.0.5957 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.308237][T18483] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.308244][T18483] Call Trace:
[  485.308250][T18483]  <TASK>
[  485.308257][T18483]  dump_stack_lvl+0x189/0x250
[  485.308277][T18483]  ? __pfx____ratelimit+0x10/0x10
[  485.308295][T18483]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.308309][T18483]  ? __pfx__printk+0x10/0x10
[  485.308327][T18483]  ? __might_fault+0xb0/0x130
[  485.308350][T18483]  should_fail_ex+0x414/0x560
[  485.308372][T18483]  _copy_from_user+0x2d/0xb0
[  485.308388][T18483]  kstrtouint_from_user+0xc4/0x170
[  485.308447][T18483]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.308480][T18483]  proc_fail_nth_write+0x88/0x200
[  485.308497][T18483]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.308514][T18483]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.308531][T18483]  vfs_write+0x27b/0xa90
[  485.308550][T18483]  ? __pfx_vfs_write+0x10/0x10
[  485.308562][T18483]  ? __fget_files+0x2a/0x420
[  485.308576][T18483]  ? __fget_files+0x3a0/0x420
[  485.308587][T18483]  ? __fget_files+0x2a/0x420
[  485.308604][T18483]  ksys_write+0x145/0x250
[  485.308620][T18483]  ? __fget_files+0x3a0/0x420
[  485.308638][T18483]  ? __pfx_ksys_write+0x10/0x10
[  485.308653][T18483]  ? do_syscall_64+0xbe/0x3b0
[  485.308668][T18483]  do_syscall_64+0xfa/0x3b0
[  485.308677][T18483]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.308695][T18483]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.308705][T18483]  ? clear_bhb_loop+0x60/0xb0
[  485.308718][T18483]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.308727][T18483] RIP: 0033:0x7fec16f8d3df
[  485.308737][T18483] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.308746][T18483] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.308758][T18483] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.308765][T18483] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.308771][T18483] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.308778][T18483] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.308785][T18483] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.308808][T18483]  </TASK>
[  485.336043][T18485] FAULT_INJECTION: forcing a failure.
[  485.336043][T18485] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.336064][T18485] CPU: 0 UID: 0 PID: 18485 Comm: syz.0.5958 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.336076][T18485] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.336083][T18485] Call Trace:
[  485.336088][T18485]  <TASK>
[  485.336093][T18485]  dump_stack_lvl+0x189/0x250
[  485.336111][T18485]  ? __pfx____ratelimit+0x10/0x10
[  485.336127][T18485]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.336139][T18485]  ? __pfx__printk+0x10/0x10
[  485.336154][T18485]  ? __might_fault+0xb0/0x130
[  485.336176][T18485]  should_fail_ex+0x414/0x560
[  485.336194][T18485]  _copy_from_user+0x2d/0xb0
[  485.336207][T18485]  kstrtouint_from_user+0xc4/0x170
[  485.336224][T18485]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.336252][T18485]  proc_fail_nth_write+0x88/0x200
[  485.336269][T18485]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.336284][T18485]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.336294][T18485]  vfs_write+0x27b/0xa90
[  485.336310][T18485]  ? __pfx_vfs_write+0x10/0x10
[  485.336322][T18485]  ? __fget_files+0x2a/0x420
[  485.336339][T18485]  ? __fget_files+0x3a0/0x420
[  485.336351][T18485]  ? __fget_files+0x2a/0x420
[  485.336369][T18485]  ksys_write+0x145/0x250
[  485.336380][T18485]  ? __fget_files+0x3a0/0x420
[  485.336394][T18485]  ? __pfx_ksys_write+0x10/0x10
[  485.336447][T18485]  ? do_syscall_64+0xbe/0x3b0
[  485.336462][T18485]  do_syscall_64+0xfa/0x3b0
[  485.336471][T18485]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.336486][T18485]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.336496][T18485]  ? clear_bhb_loop+0x60/0xb0
[  485.336510][T18485]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.336520][T18485] RIP: 0033:0x7fec16f8d3df
[  485.336531][T18485] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.336541][T18485] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.336553][T18485] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.336560][T18485] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.336567][T18485] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.336573][T18485] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.336579][T18485] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.336595][T18485]  </TASK>
[  485.368379][T18487] FAULT_INJECTION: forcing a failure.
[  485.368379][T18487] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.368434][T18487] CPU: 0 UID: 0 PID: 18487 Comm: syz.0.5959 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.368448][T18487] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.368455][T18487] Call Trace:
[  485.368460][T18487]  <TASK>
[  485.368465][T18487]  dump_stack_lvl+0x189/0x250
[  485.368484][T18487]  ? __pfx____ratelimit+0x10/0x10
[  485.368502][T18487]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.368514][T18487]  ? __pfx__printk+0x10/0x10
[  485.368529][T18487]  ? __might_fault+0xb0/0x130
[  485.368544][T18487]  should_fail_ex+0x414/0x560
[  485.368561][T18487]  _copy_from_user+0x2d/0xb0
[  485.368575][T18487]  kstrtouint_from_user+0xc4/0x170
[  485.368592][T18487]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.368618][T18487]  proc_fail_nth_write+0x88/0x200
[  485.368633][T18487]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.368651][T18487]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.368668][T18487]  vfs_write+0x27b/0xa90
[  485.368687][T18487]  ? __pfx_vfs_write+0x10/0x10
[  485.368699][T18487]  ? __fget_files+0x2a/0x420
[  485.368709][T18487]  ? __fget_files+0x3a0/0x420
[  485.368717][T18487]  ? __fget_files+0x2a/0x420
[  485.368728][T18487]  ksys_write+0x145/0x250
[  485.368737][T18487]  ? __fget_files+0x3a0/0x420
[  485.368748][T18487]  ? __pfx_ksys_write+0x10/0x10
[  485.368762][T18487]  ? do_syscall_64+0xbe/0x3b0
[  485.368773][T18487]  do_syscall_64+0xfa/0x3b0
[  485.368782][T18487]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.368797][T18487]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.368808][T18487]  ? clear_bhb_loop+0x60/0xb0
[  485.368822][T18487]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.368832][T18487] RIP: 0033:0x7fec16f8d3df
[  485.368842][T18487] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.368851][T18487] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.368863][T18487] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.368870][T18487] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.368876][T18487] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.368882][T18487] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.368889][T18487] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.368906][T18487]  </TASK>
[  485.400662][T18489] FAULT_INJECTION: forcing a failure.
[  485.400662][T18489] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.400687][T18489] CPU: 0 UID: 0 PID: 18489 Comm: syz.0.5960 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.400701][T18489] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.400708][T18489] Call Trace:
[  485.400713][T18489]  <TASK>
[  485.400718][T18489]  dump_stack_lvl+0x189/0x250
[  485.400736][T18489]  ? __pfx____ratelimit+0x10/0x10
[  485.400752][T18489]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.400764][T18489]  ? __pfx__printk+0x10/0x10
[  485.400776][T18489]  ? __might_fault+0xb0/0x130
[  485.400794][T18489]  should_fail_ex+0x414/0x560
[  485.400813][T18489]  _copy_from_user+0x2d/0xb0
[  485.400827][T18489]  kstrtouint_from_user+0xc4/0x170
[  485.400845][T18489]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.400872][T18489]  proc_fail_nth_write+0x88/0x200
[  485.400889][T18489]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.400907][T18489]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.400924][T18489]  vfs_write+0x27b/0xa90
[  485.400943][T18489]  ? __pfx_vfs_write+0x10/0x10
[  485.400956][T18489]  ? __fget_files+0x2a/0x420
[  485.400972][T18489]  ? __fget_files+0x3a0/0x420
[  485.400984][T18489]  ? __fget_files+0x2a/0x420
[  485.401010][T18489]  ksys_write+0x145/0x250
[  485.401021][T18489]  ? __fget_files+0x3a0/0x420
[  485.401034][T18489]  ? __pfx_ksys_write+0x10/0x10
[  485.401049][T18489]  ? do_syscall_64+0xbe/0x3b0
[  485.401063][T18489]  do_syscall_64+0xfa/0x3b0
[  485.401072][T18489]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.401088][T18489]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.401098][T18489]  ? clear_bhb_loop+0x60/0xb0
[  485.401111][T18489]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.401121][T18489] RIP: 0033:0x7fec16f8d3df
[  485.401130][T18489] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.401140][T18489] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.401151][T18489] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.401158][T18489] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.401164][T18489] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.401170][T18489] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.401176][T18489] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.401194][T18489]  </TASK>
[  485.431916][T18491] FAULT_INJECTION: forcing a failure.
[  485.431916][T18491] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.431940][T18491] CPU: 0 UID: 0 PID: 18491 Comm: syz.0.5961 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.431952][T18491] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.431959][T18491] Call Trace:
[  485.431965][T18491]  <TASK>
[  485.431970][T18491]  dump_stack_lvl+0x189/0x250
[  485.431988][T18491]  ? __pfx____ratelimit+0x10/0x10
[  485.432013][T18491]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.432024][T18491]  ? __pfx__printk+0x10/0x10
[  485.432038][T18491]  ? __might_fault+0xb0/0x130
[  485.432058][T18491]  should_fail_ex+0x414/0x560
[  485.432077][T18491]  _copy_from_user+0x2d/0xb0
[  485.432091][T18491]  kstrtouint_from_user+0xc4/0x170
[  485.432109][T18491]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.432131][T18491]  proc_fail_nth_write+0x88/0x200
[  485.432147][T18491]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.432166][T18491]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.432182][T18491]  vfs_write+0x27b/0xa90
[  485.432201][T18491]  ? __pfx_vfs_write+0x10/0x10
[  485.432213][T18491]  ? __fget_files+0x2a/0x420
[  485.432229][T18491]  ? __fget_files+0x3a0/0x420
[  485.432240][T18491]  ? __fget_files+0x2a/0x420
[  485.432256][T18491]  ksys_write+0x145/0x250
[  485.432267][T18491]  ? __fget_files+0x3a0/0x420
[  485.432281][T18491]  ? __pfx_ksys_write+0x10/0x10
[  485.432295][T18491]  ? do_syscall_64+0xbe/0x3b0
[  485.432307][T18491]  do_syscall_64+0xfa/0x3b0
[  485.432317][T18491]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.432332][T18491]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.432341][T18491]  ? clear_bhb_loop+0x60/0xb0
[  485.432353][T18491]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.432363][T18491] RIP: 0033:0x7fec16f8d3df
[  485.432374][T18491] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.432384][T18491] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.432397][T18491] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.432439][T18491] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.432447][T18491] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.432453][T18491] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.432458][T18491] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.432475][T18491]  </TASK>
[  485.460687][T18493] FAULT_INJECTION: forcing a failure.
[  485.460687][T18493] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.460713][T18493] CPU: 0 UID: 0 PID: 18493 Comm: syz.0.5962 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.460727][T18493] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.460733][T18493] Call Trace:
[  485.460736][T18493]  <TASK>
[  485.460740][T18493]  dump_stack_lvl+0x189/0x250
[  485.460753][T18493]  ? __pfx____ratelimit+0x10/0x10
[  485.460764][T18493]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.460772][T18493]  ? __pfx__printk+0x10/0x10
[  485.460786][T18493]  ? __might_fault+0xb0/0x130
[  485.460805][T18493]  should_fail_ex+0x414/0x560
[  485.460829][T18493]  _copy_from_user+0x2d/0xb0
[  485.460848][T18493]  kstrtouint_from_user+0xc4/0x170
[  485.460866][T18493]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.460893][T18493]  proc_fail_nth_write+0x88/0x200
[  485.460911][T18493]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.460930][T18493]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.460946][T18493]  vfs_write+0x27b/0xa90
[  485.460971][T18493]  ? __pfx_vfs_write+0x10/0x10
[  485.460984][T18493]  ? __fget_files+0x2a/0x420
[  485.461006][T18493]  ? __fget_files+0x3a0/0x420
[  485.461019][T18493]  ? __fget_files+0x2a/0x420
[  485.461038][T18493]  ksys_write+0x145/0x250
[  485.461049][T18493]  ? __fget_files+0x3a0/0x420
[  485.461061][T18493]  ? __pfx_ksys_write+0x10/0x10
[  485.461077][T18493]  ? do_syscall_64+0xbe/0x3b0
[  485.461091][T18493]  do_syscall_64+0xfa/0x3b0
[  485.461105][T18493]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.461122][T18493]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.461137][T18493]  ? clear_bhb_loop+0x60/0xb0
[  485.461154][T18493]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.461164][T18493] RIP: 0033:0x7fec16f8d3df
[  485.461176][T18493] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.461186][T18493] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.461199][T18493] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.461207][T18493] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.461213][T18493] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.461220][T18493] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.461225][T18493] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.461245][T18493]  </TASK>
[  485.491114][T18495] FAULT_INJECTION: forcing a failure.
[  485.491114][T18495] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.491137][T18495] CPU: 0 UID: 0 PID: 18495 Comm: syz.0.5963 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.491151][T18495] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.491157][T18495] Call Trace:
[  485.491162][T18495]  <TASK>
[  485.491167][T18495]  dump_stack_lvl+0x189/0x250
[  485.491180][T18495]  ? __pfx____ratelimit+0x10/0x10
[  485.491191][T18495]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.491198][T18495]  ? __pfx__printk+0x10/0x10
[  485.491208][T18495]  ? __might_fault+0xb0/0x130
[  485.491220][T18495]  should_fail_ex+0x414/0x560
[  485.491234][T18495]  _copy_from_user+0x2d/0xb0
[  485.491247][T18495]  kstrtouint_from_user+0xc4/0x170
[  485.491264][T18495]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.491291][T18495]  proc_fail_nth_write+0x88/0x200
[  485.491308][T18495]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.491324][T18495]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.491335][T18495]  vfs_write+0x27b/0xa90
[  485.491351][T18495]  ? __pfx_vfs_write+0x10/0x10
[  485.491363][T18495]  ? __fget_files+0x2a/0x420
[  485.491380][T18495]  ? __fget_files+0x3a0/0x420
[  485.491391][T18495]  ? __fget_files+0x2a/0x420
[  485.491408][T18495]  ksys_write+0x145/0x250
[  485.491418][T18495]  ? __fget_files+0x3a0/0x420
[  485.491431][T18495]  ? __pfx_ksys_write+0x10/0x10
[  485.491447][T18495]  ? do_syscall_64+0xbe/0x3b0
[  485.491460][T18495]  do_syscall_64+0xfa/0x3b0
[  485.491469][T18495]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.491483][T18495]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.491493][T18495]  ? clear_bhb_loop+0x60/0xb0
[  485.491507][T18495]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.491517][T18495] RIP: 0033:0x7fec16f8d3df
[  485.491526][T18495] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.491535][T18495] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.491547][T18495] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.491554][T18495] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.491560][T18495] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.491566][T18495] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.491572][T18495] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.491590][T18495]  </TASK>
[  485.514108][T18497] FAULT_INJECTION: forcing a failure.
[  485.514108][T18497] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.514133][T18497] CPU: 0 UID: 0 PID: 18497 Comm: syz.0.5964 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.514146][T18497] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.514152][T18497] Call Trace:
[  485.514157][T18497]  <TASK>
[  485.514162][T18497]  dump_stack_lvl+0x189/0x250
[  485.514185][T18497]  ? __pfx____ratelimit+0x10/0x10
[  485.514202][T18497]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.514214][T18497]  ? __pfx__printk+0x10/0x10
[  485.514229][T18497]  ? __might_fault+0xb0/0x130
[  485.514249][T18497]  should_fail_ex+0x414/0x560
[  485.514266][T18497]  _copy_from_user+0x2d/0xb0
[  485.514279][T18497]  kstrtouint_from_user+0xc4/0x170
[  485.514296][T18497]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.514323][T18497]  proc_fail_nth_write+0x88/0x200
[  485.514338][T18497]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.514354][T18497]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.514368][T18497]  vfs_write+0x27b/0xa90
[  485.514385][T18497]  ? __pfx_vfs_write+0x10/0x10
[  485.514398][T18497]  ? __fget_files+0x2a/0x420
[  485.514413][T18497]  ? __fget_files+0x3a0/0x420
[  485.514424][T18497]  ? __fget_files+0x2a/0x420
[  485.514442][T18497]  ksys_write+0x145/0x250
[  485.514453][T18497]  ? __fget_files+0x3a0/0x420
[  485.514466][T18497]  ? __pfx_ksys_write+0x10/0x10
[  485.514481][T18497]  ? do_syscall_64+0xbe/0x3b0
[  485.514494][T18497]  do_syscall_64+0xfa/0x3b0
[  485.514503][T18497]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.514519][T18497]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.514529][T18497]  ? clear_bhb_loop+0x60/0xb0
[  485.514544][T18497]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.514554][T18497] RIP: 0033:0x7fec16f8d3df
[  485.514565][T18497] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.514574][T18497] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.514586][T18497] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.514593][T18497] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.514599][T18497] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.514605][T18497] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.514611][T18497] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.514628][T18497]  </TASK>
[  485.549396][T18499] FAULT_INJECTION: forcing a failure.
[  485.549396][T18499] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.549420][T18499] CPU: 0 UID: 0 PID: 18499 Comm: syz.0.5965 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.549433][T18499] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.549441][T18499] Call Trace:
[  485.549446][T18499]  <TASK>
[  485.549450][T18499]  dump_stack_lvl+0x189/0x250
[  485.549469][T18499]  ? __pfx____ratelimit+0x10/0x10
[  485.549486][T18499]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.549499][T18499]  ? __pfx__printk+0x10/0x10
[  485.549514][T18499]  ? __might_fault+0xb0/0x130
[  485.549532][T18499]  should_fail_ex+0x414/0x560
[  485.549549][T18499]  _copy_from_user+0x2d/0xb0
[  485.549563][T18499]  kstrtouint_from_user+0xc4/0x170
[  485.549579][T18499]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.549606][T18499]  proc_fail_nth_write+0x88/0x200
[  485.549622][T18499]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.549641][T18499]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.549656][T18499]  vfs_write+0x27b/0xa90
[  485.549668][T18499]  ? __pfx_vfs_write+0x10/0x10
[  485.549675][T18499]  ? __fget_files+0x2a/0x420
[  485.549685][T18499]  ? __fget_files+0x3a0/0x420
[  485.549693][T18499]  ? __fget_files+0x2a/0x420
[  485.549704][T18499]  ksys_write+0x145/0x250
[  485.549710][T18499]  ? __fget_files+0x3a0/0x420
[  485.549722][T18499]  ? __pfx_ksys_write+0x10/0x10
[  485.549736][T18499]  ? do_syscall_64+0xbe/0x3b0
[  485.549748][T18499]  do_syscall_64+0xfa/0x3b0
[  485.549756][T18499]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.549771][T18499]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.549780][T18499]  ? clear_bhb_loop+0x60/0xb0
[  485.549793][T18499]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.549803][T18499] RIP: 0033:0x7fec16f8d3df
[  485.549813][T18499] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.549828][T18499] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.549840][T18499] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.549848][T18499] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.549854][T18499] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.549859][T18499] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.549865][T18499] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.549883][T18499]  </TASK>
[  485.575607][T18501] FAULT_INJECTION: forcing a failure.
[  485.575607][T18501] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.575627][T18501] CPU: 0 UID: 0 PID: 18501 Comm: syz.0.5966 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.575637][T18501] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.575642][T18501] Call Trace:
[  485.575646][T18501]  <TASK>
[  485.575650][T18501]  dump_stack_lvl+0x189/0x250
[  485.575663][T18501]  ? __pfx____ratelimit+0x10/0x10
[  485.575675][T18501]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.575683][T18501]  ? __pfx__printk+0x10/0x10
[  485.575694][T18501]  ? __might_fault+0xb0/0x130
[  485.575708][T18501]  should_fail_ex+0x414/0x560
[  485.575724][T18501]  _copy_from_user+0x2d/0xb0
[  485.575733][T18501]  kstrtouint_from_user+0xc4/0x170
[  485.575747][T18501]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.575775][T18501]  proc_fail_nth_write+0x88/0x200
[  485.575792][T18501]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.575812][T18501]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.575829][T18501]  vfs_write+0x27b/0xa90
[  485.575850][T18501]  ? __pfx_vfs_write+0x10/0x10
[  485.575862][T18501]  ? __fget_files+0x2a/0x420
[  485.575873][T18501]  ? __fget_files+0x3a0/0x420
[  485.575881][T18501]  ? __fget_files+0x2a/0x420
[  485.575894][T18501]  ksys_write+0x145/0x250
[  485.575902][T18501]  ? __fget_files+0x3a0/0x420
[  485.575911][T18501]  ? __pfx_ksys_write+0x10/0x10
[  485.575921][T18501]  ? do_syscall_64+0xbe/0x3b0
[  485.575930][T18501]  do_syscall_64+0xfa/0x3b0
[  485.575937][T18501]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.575947][T18501]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.575955][T18501]  ? clear_bhb_loop+0x60/0xb0
[  485.575974][T18501]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.575984][T18501] RIP: 0033:0x7fec16f8d3df
[  485.575995][T18501] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.576006][T18501] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.576020][T18501] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.576028][T18501] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.576033][T18501] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.576039][T18501] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.576046][T18501] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.576064][T18501]  </TASK>
[  485.606689][T18503] FAULT_INJECTION: forcing a failure.
[  485.606689][T18503] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.606714][T18503] CPU: 0 UID: 0 PID: 18503 Comm: syz.0.5967 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.606727][T18503] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.606734][T18503] Call Trace:
[  485.606739][T18503]  <TASK>
[  485.606744][T18503]  dump_stack_lvl+0x189/0x250
[  485.606761][T18503]  ? __pfx____ratelimit+0x10/0x10
[  485.606777][T18503]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.606789][T18503]  ? __pfx__printk+0x10/0x10
[  485.606803][T18503]  ? __might_fault+0xb0/0x130
[  485.606823][T18503]  should_fail_ex+0x414/0x560
[  485.606841][T18503]  _copy_from_user+0x2d/0xb0
[  485.606855][T18503]  kstrtouint_from_user+0xc4/0x170
[  485.606872][T18503]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.606897][T18503]  proc_fail_nth_write+0x88/0x200
[  485.606947][T18503]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.606966][T18503]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.606982][T18503]  vfs_write+0x27b/0xa90
[  485.606999][T18503]  ? __pfx_vfs_write+0x10/0x10
[  485.607011][T18503]  ? __fget_files+0x2a/0x420
[  485.607028][T18503]  ? __fget_files+0x3a0/0x420
[  485.607039][T18503]  ? __fget_files+0x2a/0x420
[  485.607057][T18503]  ksys_write+0x145/0x250
[  485.607068][T18503]  ? __fget_files+0x3a0/0x420
[  485.607081][T18503]  ? __pfx_ksys_write+0x10/0x10
[  485.607096][T18503]  ? do_syscall_64+0xbe/0x3b0
[  485.607109][T18503]  do_syscall_64+0xfa/0x3b0
[  485.607118][T18503]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.607133][T18503]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.607143][T18503]  ? clear_bhb_loop+0x60/0xb0
[  485.607155][T18503]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.607165][T18503] RIP: 0033:0x7fec16f8d3df
[  485.607176][T18503] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.607184][T18503] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.607195][T18503] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.607202][T18503] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.607209][T18503] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.607216][T18503] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.607222][T18503] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.607238][T18503]  </TASK>
[  485.643109][T18505] FAULT_INJECTION: forcing a failure.
[  485.643109][T18505] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.643132][T18505] CPU: 0 UID: 0 PID: 18505 Comm: syz.0.5968 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.643144][T18505] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.643151][T18505] Call Trace:
[  485.643156][T18505]  <TASK>
[  485.643161][T18505]  dump_stack_lvl+0x189/0x250
[  485.643200][T18505]  ? __pfx____ratelimit+0x10/0x10
[  485.643223][T18505]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.643236][T18505]  ? __pfx__printk+0x10/0x10
[  485.643251][T18505]  ? __might_fault+0xb0/0x130
[  485.643280][T18505]  should_fail_ex+0x414/0x560
[  485.643298][T18505]  _copy_from_user+0x2d/0xb0
[  485.643313][T18505]  kstrtouint_from_user+0xc4/0x170
[  485.643331][T18505]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.643357][T18505]  proc_fail_nth_write+0x88/0x200
[  485.643374][T18505]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.643392][T18505]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.643410][T18505]  vfs_write+0x27b/0xa90
[  485.643430][T18505]  ? __pfx_vfs_write+0x10/0x10
[  485.643442][T18505]  ? __fget_files+0x2a/0x420
[  485.643456][T18505]  ? __fget_files+0x3a0/0x420
[  485.643467][T18505]  ? __fget_files+0x2a/0x420
[  485.643486][T18505]  ksys_write+0x145/0x250
[  485.643497][T18505]  ? __fget_files+0x3a0/0x420
[  485.643510][T18505]  ? __pfx_ksys_write+0x10/0x10
[  485.643525][T18505]  ? do_syscall_64+0xbe/0x3b0
[  485.643539][T18505]  do_syscall_64+0xfa/0x3b0
[  485.643548][T18505]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.643564][T18505]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.643574][T18505]  ? clear_bhb_loop+0x60/0xb0
[  485.643586][T18505]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.643596][T18505] RIP: 0033:0x7fec16f8d3df
[  485.643607][T18505] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.643617][T18505] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.643629][T18505] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.643635][T18505] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.643641][T18505] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.643647][T18505] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.643653][T18505] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.643669][T18505]  </TASK>
[  485.676038][T18507] FAULT_INJECTION: forcing a failure.
[  485.676038][T18507] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.676065][T18507] CPU: 0 UID: 0 PID: 18507 Comm: syz.0.5969 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.676079][T18507] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.676087][T18507] Call Trace:
[  485.676093][T18507]  <TASK>
[  485.676098][T18507]  dump_stack_lvl+0x189/0x250
[  485.676119][T18507]  ? __pfx____ratelimit+0x10/0x10
[  485.676137][T18507]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.676152][T18507]  ? __pfx__printk+0x10/0x10
[  485.676169][T18507]  ? __might_fault+0xb0/0x130
[  485.676192][T18507]  should_fail_ex+0x414/0x560
[  485.676213][T18507]  _copy_from_user+0x2d/0xb0
[  485.676227][T18507]  kstrtouint_from_user+0xc4/0x170
[  485.676247][T18507]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.676277][T18507]  proc_fail_nth_write+0x88/0x200
[  485.676296][T18507]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.676318][T18507]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.676336][T18507]  vfs_write+0x27b/0xa90
[  485.676360][T18507]  ? __pfx_vfs_write+0x10/0x10
[  485.676375][T18507]  ? __fget_files+0x2a/0x420
[  485.676393][T18507]  ? __fget_files+0x3a0/0x420
[  485.676440][T18507]  ? __fget_files+0x2a/0x420
[  485.676462][T18507]  ksys_write+0x145/0x250
[  485.676474][T18507]  ? __fget_files+0x3a0/0x420
[  485.676489][T18507]  ? __pfx_ksys_write+0x10/0x10
[  485.676507][T18507]  ? do_syscall_64+0xbe/0x3b0
[  485.676522][T18507]  do_syscall_64+0xfa/0x3b0
[  485.676532][T18507]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.676550][T18507]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.676562][T18507]  ? clear_bhb_loop+0x60/0xb0
[  485.676576][T18507]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.676588][T18507] RIP: 0033:0x7fec16f8d3df
[  485.676599][T18507] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.676610][T18507] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.676624][T18507] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.676632][T18507] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.676639][T18507] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.676646][T18507] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.676654][T18507] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.676674][T18507]  </TASK>
[  485.708834][T18509] FAULT_INJECTION: forcing a failure.
[  485.708834][T18509] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.708860][T18509] CPU: 0 UID: 0 PID: 18509 Comm: syz.0.5970 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.708872][T18509] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.708881][T18509] Call Trace:
[  485.708886][T18509]  <TASK>
[  485.708891][T18509]  dump_stack_lvl+0x189/0x250
[  485.708908][T18509]  ? __pfx____ratelimit+0x10/0x10
[  485.708925][T18509]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.708937][T18509]  ? __pfx__printk+0x10/0x10
[  485.708953][T18509]  ? __might_fault+0xb0/0x130
[  485.708973][T18509]  should_fail_ex+0x414/0x560
[  485.708991][T18509]  _copy_from_user+0x2d/0xb0
[  485.709012][T18509]  kstrtouint_from_user+0xc4/0x170
[  485.709029][T18509]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.709056][T18509]  proc_fail_nth_write+0x88/0x200
[  485.709074][T18509]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.709091][T18509]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.709109][T18509]  vfs_write+0x27b/0xa90
[  485.709128][T18509]  ? __pfx_vfs_write+0x10/0x10
[  485.709141][T18509]  ? __fget_files+0x2a/0x420
[  485.709157][T18509]  ? __fget_files+0x3a0/0x420
[  485.709169][T18509]  ? __fget_files+0x2a/0x420
[  485.709188][T18509]  ksys_write+0x145/0x250
[  485.709199][T18509]  ? __fget_files+0x3a0/0x420
[  485.709211][T18509]  ? __pfx_ksys_write+0x10/0x10
[  485.709227][T18509]  ? do_syscall_64+0xbe/0x3b0
[  485.709240][T18509]  do_syscall_64+0xfa/0x3b0
[  485.709250][T18509]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.709265][T18509]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.709275][T18509]  ? clear_bhb_loop+0x60/0xb0
[  485.709290][T18509]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.709299][T18509] RIP: 0033:0x7fec16f8d3df
[  485.709309][T18509] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.709320][T18509] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.709331][T18509] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.709338][T18509] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.709346][T18509] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.709352][T18509] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.709358][T18509] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.709376][T18509]  </TASK>
[  485.744605][T18511] FAULT_INJECTION: forcing a failure.
[  485.744605][T18511] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.744629][T18511] CPU: 0 UID: 0 PID: 18511 Comm: syz.0.5971 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.744642][T18511] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.744649][T18511] Call Trace:
[  485.744654][T18511]  <TASK>
[  485.744658][T18511]  dump_stack_lvl+0x189/0x250
[  485.744677][T18511]  ? __pfx____ratelimit+0x10/0x10
[  485.744693][T18511]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.744705][T18511]  ? __pfx__printk+0x10/0x10
[  485.744721][T18511]  ? __might_fault+0xb0/0x130
[  485.744741][T18511]  should_fail_ex+0x414/0x560
[  485.744765][T18511]  _copy_from_user+0x2d/0xb0
[  485.744779][T18511]  kstrtouint_from_user+0xc4/0x170
[  485.744797][T18511]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.744823][T18511]  proc_fail_nth_write+0x88/0x200
[  485.744839][T18511]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.744858][T18511]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.744874][T18511]  vfs_write+0x27b/0xa90
[  485.744893][T18511]  ? __pfx_vfs_write+0x10/0x10
[  485.744905][T18511]  ? __fget_files+0x2a/0x420
[  485.744921][T18511]  ? __fget_files+0x3a0/0x420
[  485.744933][T18511]  ? __fget_files+0x2a/0x420
[  485.744950][T18511]  ksys_write+0x145/0x250
[  485.744961][T18511]  ? __fget_files+0x3a0/0x420
[  485.744974][T18511]  ? __pfx_ksys_write+0x10/0x10
[  485.744989][T18511]  ? do_syscall_64+0xbe/0x3b0
[  485.745003][T18511]  do_syscall_64+0xfa/0x3b0
[  485.745011][T18511]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.745026][T18511]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.745037][T18511]  ? clear_bhb_loop+0x60/0xb0
[  485.745049][T18511]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.745060][T18511] RIP: 0033:0x7fec16f8d3df
[  485.745070][T18511] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.745079][T18511] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.745091][T18511] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.745098][T18511] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.745105][T18511] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.745111][T18511] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.745118][T18511] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.745135][T18511]  </TASK>
[  485.765851][T18513] FAULT_INJECTION: forcing a failure.
[  485.765851][T18513] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.765876][T18513] CPU: 0 UID: 0 PID: 18513 Comm: syz.0.5972 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.765891][T18513] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.765898][T18513] Call Trace:
[  485.765904][T18513]  <TASK>
[  485.765909][T18513]  dump_stack_lvl+0x189/0x250
[  485.765927][T18513]  ? __pfx____ratelimit+0x10/0x10
[  485.765944][T18513]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.765958][T18513]  ? __pfx__printk+0x10/0x10
[  485.765973][T18513]  ? __might_fault+0xb0/0x130
[  485.765996][T18513]  should_fail_ex+0x414/0x560
[  485.766014][T18513]  _copy_from_user+0x2d/0xb0
[  485.766029][T18513]  kstrtouint_from_user+0xc4/0x170
[  485.766050][T18513]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.766078][T18513]  proc_fail_nth_write+0x88/0x200
[  485.766096][T18513]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.766117][T18513]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.766134][T18513]  vfs_write+0x27b/0xa90
[  485.766152][T18513]  ? __pfx_vfs_write+0x10/0x10
[  485.766165][T18513]  ? __fget_files+0x2a/0x420
[  485.766183][T18513]  ? __fget_files+0x3a0/0x420
[  485.766195][T18513]  ? __fget_files+0x2a/0x420
[  485.766215][T18513]  ksys_write+0x145/0x250
[  485.766226][T18513]  ? __fget_files+0x3a0/0x420
[  485.766240][T18513]  ? __pfx_ksys_write+0x10/0x10
[  485.766257][T18513]  ? do_syscall_64+0xbe/0x3b0
[  485.766271][T18513]  do_syscall_64+0xfa/0x3b0
[  485.766280][T18513]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.766297][T18513]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.766308][T18513]  ? clear_bhb_loop+0x60/0xb0
[  485.766321][T18513]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.766332][T18513] RIP: 0033:0x7fec16f8d3df
[  485.766343][T18513] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.766353][T18513] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.766366][T18513] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.766374][T18513] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.766381][T18513] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.766387][T18513] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.766392][T18513] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.766403][T18513]  </TASK>
[  485.796222][T18515] FAULT_INJECTION: forcing a failure.
[  485.796222][T18515] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.796247][T18515] CPU: 0 UID: 0 PID: 18515 Comm: syz.0.5973 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.796260][T18515] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.796267][T18515] Call Trace:
[  485.796273][T18515]  <TASK>
[  485.796278][T18515]  dump_stack_lvl+0x189/0x250
[  485.796295][T18515]  ? __pfx____ratelimit+0x10/0x10
[  485.796312][T18515]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.796325][T18515]  ? __pfx__printk+0x10/0x10
[  485.796339][T18515]  ? __might_fault+0xb0/0x130
[  485.796361][T18515]  should_fail_ex+0x414/0x560
[  485.796379][T18515]  _copy_from_user+0x2d/0xb0
[  485.796393][T18515]  kstrtouint_from_user+0xc4/0x170
[  485.796452][T18515]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.796479][T18515]  proc_fail_nth_write+0x88/0x200
[  485.796497][T18515]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.796515][T18515]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.796531][T18515]  vfs_write+0x27b/0xa90
[  485.796548][T18515]  ? __pfx_vfs_write+0x10/0x10
[  485.796562][T18515]  ? __fget_files+0x2a/0x420
[  485.796580][T18515]  ? __fget_files+0x3a0/0x420
[  485.796590][T18515]  ? __fget_files+0x2a/0x420
[  485.796609][T18515]  ksys_write+0x145/0x250
[  485.796620][T18515]  ? __fget_files+0x3a0/0x420
[  485.796633][T18515]  ? __pfx_ksys_write+0x10/0x10
[  485.796649][T18515]  ? do_syscall_64+0xbe/0x3b0
[  485.796663][T18515]  do_syscall_64+0xfa/0x3b0
[  485.796672][T18515]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.796688][T18515]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.796697][T18515]  ? clear_bhb_loop+0x60/0xb0
[  485.796708][T18515]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.796724][T18515] RIP: 0033:0x7fec16f8d3df
[  485.796735][T18515] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.796745][T18515] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.796759][T18515] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.796767][T18515] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.796774][T18515] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.796781][T18515] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.796788][T18515] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.796804][T18515]  </TASK>
[  485.833925][T18517] FAULT_INJECTION: forcing a failure.
[  485.833925][T18517] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.833950][T18517] CPU: 0 UID: 0 PID: 18517 Comm: syz.0.5974 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.833963][T18517] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.833971][T18517] Call Trace:
[  485.833976][T18517]  <TASK>
[  485.833981][T18517]  dump_stack_lvl+0x189/0x250
[  485.834000][T18517]  ? __pfx____ratelimit+0x10/0x10
[  485.834024][T18517]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.834037][T18517]  ? __pfx__printk+0x10/0x10
[  485.834051][T18517]  ? __might_fault+0xb0/0x130
[  485.834071][T18517]  should_fail_ex+0x414/0x560
[  485.834089][T18517]  _copy_from_user+0x2d/0xb0
[  485.834103][T18517]  kstrtouint_from_user+0xc4/0x170
[  485.834119][T18517]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.834145][T18517]  proc_fail_nth_write+0x88/0x200
[  485.834162][T18517]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.834181][T18517]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.834191][T18517]  vfs_write+0x27b/0xa90
[  485.834203][T18517]  ? __pfx_vfs_write+0x10/0x10
[  485.834211][T18517]  ? __fget_files+0x2a/0x420
[  485.834221][T18517]  ? __fget_files+0x3a0/0x420
[  485.834231][T18517]  ? __fget_files+0x2a/0x420
[  485.834247][T18517]  ksys_write+0x145/0x250
[  485.834256][T18517]  ? __fget_files+0x3a0/0x420
[  485.834269][T18517]  ? __pfx_ksys_write+0x10/0x10
[  485.834283][T18517]  ? do_syscall_64+0xbe/0x3b0
[  485.834296][T18517]  do_syscall_64+0xfa/0x3b0
[  485.834304][T18517]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.834319][T18517]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.834330][T18517]  ? clear_bhb_loop+0x60/0xb0
[  485.834352][T18517]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.834363][T18517] RIP: 0033:0x7fec16f8d3df
[  485.834374][T18517] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.834383][T18517] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.834395][T18517] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.834402][T18517] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.834407][T18517] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.834413][T18517] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.834419][T18517] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.834437][T18517]  </TASK>
[  485.861546][T18519] FAULT_INJECTION: forcing a failure.
[  485.861546][T18519] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.861572][T18519] CPU: 0 UID: 0 PID: 18519 Comm: syz.0.5975 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.861585][T18519] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.861592][T18519] Call Trace:
[  485.861598][T18519]  <TASK>
[  485.861603][T18519]  dump_stack_lvl+0x189/0x250
[  485.861624][T18519]  ? __pfx____ratelimit+0x10/0x10
[  485.861640][T18519]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.861653][T18519]  ? __pfx__printk+0x10/0x10
[  485.861668][T18519]  ? __might_fault+0xb0/0x130
[  485.861696][T18519]  should_fail_ex+0x414/0x560
[  485.861713][T18519]  _copy_from_user+0x2d/0xb0
[  485.861727][T18519]  kstrtouint_from_user+0xc4/0x170
[  485.861745][T18519]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.861771][T18519]  proc_fail_nth_write+0x88/0x200
[  485.861787][T18519]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.861805][T18519]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.861822][T18519]  vfs_write+0x27b/0xa90
[  485.861841][T18519]  ? __pfx_vfs_write+0x10/0x10
[  485.861855][T18519]  ? __fget_files+0x2a/0x420
[  485.861870][T18519]  ? __fget_files+0x3a0/0x420
[  485.861881][T18519]  ? __fget_files+0x2a/0x420
[  485.861898][T18519]  ksys_write+0x145/0x250
[  485.861908][T18519]  ? __fget_files+0x3a0/0x420
[  485.861922][T18519]  ? __pfx_ksys_write+0x10/0x10
[  485.861937][T18519]  ? do_syscall_64+0xbe/0x3b0
[  485.861951][T18519]  do_syscall_64+0xfa/0x3b0
[  485.861960][T18519]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.861976][T18519]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.861986][T18519]  ? clear_bhb_loop+0x60/0xb0
[  485.861999][T18519]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.862009][T18519] RIP: 0033:0x7fec16f8d3df
[  485.862020][T18519] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.862029][T18519] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.862042][T18519] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.862050][T18519] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.862057][T18519] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.862063][T18519] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.862069][T18519] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.862086][T18519]  </TASK>
[  485.893309][T18521] FAULT_INJECTION: forcing a failure.
[  485.893309][T18521] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.893333][T18521] CPU: 0 UID: 0 PID: 18521 Comm: syz.0.5976 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.893346][T18521] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.893353][T18521] Call Trace:
[  485.893358][T18521]  <TASK>
[  485.893363][T18521]  dump_stack_lvl+0x189/0x250
[  485.893381][T18521]  ? __pfx____ratelimit+0x10/0x10
[  485.893396][T18521]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.893409][T18521]  ? __pfx__printk+0x10/0x10
[  485.893423][T18521]  ? __might_fault+0xb0/0x130
[  485.893445][T18521]  should_fail_ex+0x414/0x560
[  485.893464][T18521]  _copy_from_user+0x2d/0xb0
[  485.893479][T18521]  kstrtouint_from_user+0xc4/0x170
[  485.893496][T18521]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.893524][T18521]  proc_fail_nth_write+0x88/0x200
[  485.893540][T18521]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.893558][T18521]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.893574][T18521]  vfs_write+0x27b/0xa90
[  485.893593][T18521]  ? __pfx_vfs_write+0x10/0x10
[  485.893605][T18521]  ? __fget_files+0x2a/0x420
[  485.893618][T18521]  ? __fget_files+0x3a0/0x420
[  485.893625][T18521]  ? __fget_files+0x2a/0x420
[  485.893636][T18521]  ksys_write+0x145/0x250
[  485.893643][T18521]  ? __fget_files+0x3a0/0x420
[  485.893651][T18521]  ? __pfx_ksys_write+0x10/0x10
[  485.893660][T18521]  ? do_syscall_64+0xbe/0x3b0
[  485.893672][T18521]  do_syscall_64+0xfa/0x3b0
[  485.893681][T18521]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.893706][T18521]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.893715][T18521]  ? clear_bhb_loop+0x60/0xb0
[  485.893729][T18521]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.893739][T18521] RIP: 0033:0x7fec16f8d3df
[  485.893749][T18521] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.893759][T18521] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.893770][T18521] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.893777][T18521] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.893783][T18521] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.893789][T18521] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.893795][T18521] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.893811][T18521]  </TASK>
[  485.928665][T18523] FAULT_INJECTION: forcing a failure.
[  485.928665][T18523] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.928692][T18523] CPU: 0 UID: 0 PID: 18523 Comm: syz.0.5977 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.928706][T18523] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.928713][T18523] Call Trace:
[  485.928718][T18523]  <TASK>
[  485.928725][T18523]  dump_stack_lvl+0x189/0x250
[  485.928744][T18523]  ? __pfx____ratelimit+0x10/0x10
[  485.928761][T18523]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.928774][T18523]  ? __pfx__printk+0x10/0x10
[  485.928791][T18523]  ? __might_fault+0xb0/0x130
[  485.928811][T18523]  should_fail_ex+0x414/0x560
[  485.928832][T18523]  _copy_from_user+0x2d/0xb0
[  485.928847][T18523]  kstrtouint_from_user+0xc4/0x170
[  485.928868][T18523]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.928895][T18523]  proc_fail_nth_write+0x88/0x200
[  485.928914][T18523]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.928934][T18523]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.928952][T18523]  vfs_write+0x27b/0xa90
[  485.928972][T18523]  ? __pfx_vfs_write+0x10/0x10
[  485.928987][T18523]  ? __fget_files+0x2a/0x420
[  485.929004][T18523]  ? __fget_files+0x3a0/0x420
[  485.929028][T18523]  ? __fget_files+0x2a/0x420
[  485.929047][T18523]  ksys_write+0x145/0x250
[  485.929059][T18523]  ? __fget_files+0x3a0/0x420
[  485.929074][T18523]  ? __pfx_ksys_write+0x10/0x10
[  485.929091][T18523]  ? do_syscall_64+0xbe/0x3b0
[  485.929104][T18523]  do_syscall_64+0xfa/0x3b0
[  485.929115][T18523]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.929130][T18523]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.929141][T18523]  ? clear_bhb_loop+0x60/0xb0
[  485.929155][T18523]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.929166][T18523] RIP: 0033:0x7fec16f8d3df
[  485.929178][T18523] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.929188][T18523] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.929200][T18523] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.929206][T18523] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.929213][T18523] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.929220][T18523] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.929226][T18523] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.929243][T18523]  </TASK>
[  485.962984][T18525] FAULT_INJECTION: forcing a failure.
[  485.962984][T18525] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.963003][T18525] CPU: 0 UID: 0 PID: 18525 Comm: syz.0.5978 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.963018][T18525] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.963024][T18525] Call Trace:
[  485.963028][T18525]  <TASK>
[  485.963032][T18525]  dump_stack_lvl+0x189/0x250
[  485.963045][T18525]  ? __pfx____ratelimit+0x10/0x10
[  485.963057][T18525]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.963065][T18525]  ? __pfx__printk+0x10/0x10
[  485.963076][T18525]  ? __might_fault+0xb0/0x130
[  485.963090][T18525]  should_fail_ex+0x414/0x560
[  485.963103][T18525]  _copy_from_user+0x2d/0xb0
[  485.963113][T18525]  kstrtouint_from_user+0xc4/0x170
[  485.963124][T18525]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.963141][T18525]  proc_fail_nth_write+0x88/0x200
[  485.963153][T18525]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.963165][T18525]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.963175][T18525]  vfs_write+0x27b/0xa90
[  485.963188][T18525]  ? __pfx_vfs_write+0x10/0x10
[  485.963196][T18525]  ? __fget_files+0x2a/0x420
[  485.963207][T18525]  ? __fget_files+0x3a0/0x420
[  485.963215][T18525]  ? __fget_files+0x2a/0x420
[  485.963227][T18525]  ksys_write+0x145/0x250
[  485.963235][T18525]  ? __fget_files+0x3a0/0x420
[  485.963243][T18525]  ? __pfx_ksys_write+0x10/0x10
[  485.963253][T18525]  ? do_syscall_64+0xbe/0x3b0
[  485.963262][T18525]  do_syscall_64+0xfa/0x3b0
[  485.963268][T18525]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.963279][T18525]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.963287][T18525]  ? clear_bhb_loop+0x60/0xb0
[  485.963296][T18525]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.963305][T18525] RIP: 0033:0x7fec16f8d3df
[  485.963316][T18525] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.963325][T18525] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.963338][T18525] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.963345][T18525] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.963352][T18525] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.963359][T18525] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.963363][T18525] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.963375][T18525]  </TASK>
[  485.983853][T18527] FAULT_INJECTION: forcing a failure.
[  485.983853][T18527] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  485.983880][T18527] CPU: 0 UID: 0 PID: 18527 Comm: syz.0.5979 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  485.983894][T18527] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  485.983902][T18527] Call Trace:
[  485.983908][T18527]  <TASK>
[  485.983914][T18527]  dump_stack_lvl+0x189/0x250
[  485.983934][T18527]  ? __pfx____ratelimit+0x10/0x10
[  485.983951][T18527]  ? __pfx_dump_stack_lvl+0x10/0x10
[  485.983965][T18527]  ? __pfx__printk+0x10/0x10
[  485.983981][T18527]  ? __might_fault+0xb0/0x130
[  485.984005][T18527]  should_fail_ex+0x414/0x560
[  485.984033][T18527]  _copy_from_user+0x2d/0xb0
[  485.984049][T18527]  kstrtouint_from_user+0xc4/0x170
[  485.984068][T18527]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  485.984098][T18527]  proc_fail_nth_write+0x88/0x200
[  485.984117][T18527]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.984136][T18527]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  485.984155][T18527]  vfs_write+0x27b/0xa90
[  485.984174][T18527]  ? __pfx_vfs_write+0x10/0x10
[  485.984188][T18527]  ? __fget_files+0x2a/0x420
[  485.984208][T18527]  ? __fget_files+0x3a0/0x420
[  485.984222][T18527]  ? __fget_files+0x2a/0x420
[  485.984243][T18527]  ksys_write+0x145/0x250
[  485.984253][T18527]  ? __fget_files+0x3a0/0x420
[  485.984262][T18527]  ? __pfx_ksys_write+0x10/0x10
[  485.984276][T18527]  ? do_syscall_64+0xbe/0x3b0
[  485.984291][T18527]  do_syscall_64+0xfa/0x3b0
[  485.984302][T18527]  ? lockdep_hardirqs_on+0x9c/0x150
[  485.984320][T18527]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.984332][T18527]  ? clear_bhb_loop+0x60/0xb0
[  485.984346][T18527]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  485.984359][T18527] RIP: 0033:0x7fec16f8d3df
[  485.984371][T18527] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  485.984382][T18527] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  485.984436][T18527] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  485.984446][T18527] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  485.984453][T18527] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  485.984460][T18527] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  485.984468][T18527] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  485.984490][T18527]  </TASK>
[  486.019614][T18529] FAULT_INJECTION: forcing a failure.
[  486.019614][T18529] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.019644][T18529] CPU: 0 UID: 0 PID: 18529 Comm: syz.0.5980 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.019660][T18529] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.019668][T18529] Call Trace:
[  486.019674][T18529]  <TASK>
[  486.019680][T18529]  dump_stack_lvl+0x189/0x250
[  486.019700][T18529]  ? __pfx____ratelimit+0x10/0x10
[  486.019729][T18529]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.019749][T18529]  ? __pfx__printk+0x10/0x10
[  486.019768][T18529]  ? __might_fault+0xb0/0x130
[  486.019791][T18529]  should_fail_ex+0x414/0x560
[  486.019809][T18529]  _copy_from_user+0x2d/0xb0
[  486.019823][T18529]  kstrtouint_from_user+0xc4/0x170
[  486.019840][T18529]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.019868][T18529]  proc_fail_nth_write+0x88/0x200
[  486.019883][T18529]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.019902][T18529]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.019917][T18529]  vfs_write+0x27b/0xa90
[  486.019936][T18529]  ? __pfx_vfs_write+0x10/0x10
[  486.019950][T18529]  ? __fget_files+0x2a/0x420
[  486.019966][T18529]  ? __fget_files+0x3a0/0x420
[  486.019978][T18529]  ? __fget_files+0x2a/0x420
[  486.019998][T18529]  ksys_write+0x145/0x250
[  486.020012][T18529]  ? __pfx_ksys_write+0x10/0x10
[  486.020021][T18529]  ? rcu_is_watching+0x15/0xb0
[  486.020036][T18529]  ? do_syscall_64+0xbe/0x3b0
[  486.020050][T18529]  do_syscall_64+0xfa/0x3b0
[  486.020059][T18529]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.020074][T18529]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.020085][T18529]  ? clear_bhb_loop+0x60/0xb0
[  486.020099][T18529]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.020110][T18529] RIP: 0033:0x7fec16f8d3df
[  486.020121][T18529] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.020131][T18529] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.020144][T18529] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.020150][T18529] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.020156][T18529] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.020163][T18529] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.020170][T18529] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.020189][T18529]  </TASK>
[  486.053603][T18531] FAULT_INJECTION: forcing a failure.
[  486.053603][T18531] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.053628][T18531] CPU: 0 UID: 0 PID: 18531 Comm: syz.0.5981 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.053641][T18531] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.053647][T18531] Call Trace:
[  486.053652][T18531]  <TASK>
[  486.053657][T18531]  dump_stack_lvl+0x189/0x250
[  486.053675][T18531]  ? __pfx____ratelimit+0x10/0x10
[  486.053689][T18531]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.053702][T18531]  ? __pfx__printk+0x10/0x10
[  486.053717][T18531]  ? __might_fault+0xb0/0x130
[  486.053743][T18531]  should_fail_ex+0x414/0x560
[  486.053759][T18531]  _copy_from_user+0x2d/0xb0
[  486.053771][T18531]  kstrtouint_from_user+0xc4/0x170
[  486.053789][T18531]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.053813][T18531]  proc_fail_nth_write+0x88/0x200
[  486.053829][T18531]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.053847][T18531]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.053862][T18531]  vfs_write+0x27b/0xa90
[  486.053881][T18531]  ? __pfx_vfs_write+0x10/0x10
[  486.053894][T18531]  ? __fget_files+0x2a/0x420
[  486.053910][T18531]  ? __fget_files+0x3a0/0x420
[  486.053921][T18531]  ? __fget_files+0x2a/0x420
[  486.053932][T18531]  ksys_write+0x145/0x250
[  486.053939][T18531]  ? __fget_files+0x3a0/0x420
[  486.053947][T18531]  ? __pfx_ksys_write+0x10/0x10
[  486.053958][T18531]  ? do_syscall_64+0xbe/0x3b0
[  486.053970][T18531]  do_syscall_64+0xfa/0x3b0
[  486.053979][T18531]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.053994][T18531]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.054005][T18531]  ? clear_bhb_loop+0x60/0xb0
[  486.054017][T18531]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.054035][T18531] RIP: 0033:0x7fec16f8d3df
[  486.054046][T18531] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.054055][T18531] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.054067][T18531] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.054074][T18531] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.054080][T18531] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.054085][T18531] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.054091][T18531] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.054106][T18531]  </TASK>
[  486.083178][T18533] FAULT_INJECTION: forcing a failure.
[  486.083178][T18533] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.083208][T18533] CPU: 0 UID: 0 PID: 18533 Comm: syz.0.5982 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.083226][T18533] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.083233][T18533] Call Trace:
[  486.083237][T18533]  <TASK>
[  486.083242][T18533]  dump_stack_lvl+0x189/0x250
[  486.083259][T18533]  ? __pfx____ratelimit+0x10/0x10
[  486.083275][T18533]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.083287][T18533]  ? __pfx__printk+0x10/0x10
[  486.083301][T18533]  ? __might_fault+0xb0/0x130
[  486.083319][T18533]  should_fail_ex+0x414/0x560
[  486.083340][T18533]  _copy_from_user+0x2d/0xb0
[  486.083354][T18533]  kstrtouint_from_user+0xc4/0x170
[  486.083371][T18533]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.083398][T18533]  proc_fail_nth_write+0x88/0x200
[  486.083414][T18533]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.083436][T18533]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.083450][T18533]  vfs_write+0x27b/0xa90
[  486.083467][T18533]  ? __pfx_vfs_write+0x10/0x10
[  486.083479][T18533]  ? __fget_files+0x2a/0x420
[  486.083495][T18533]  ? __fget_files+0x3a0/0x420
[  486.083505][T18533]  ? __fget_files+0x2a/0x420
[  486.083523][T18533]  ksys_write+0x145/0x250
[  486.083534][T18533]  ? __fget_files+0x3a0/0x420
[  486.083552][T18533]  ? __pfx_ksys_write+0x10/0x10
[  486.083567][T18533]  ? do_syscall_64+0xbe/0x3b0
[  486.083580][T18533]  do_syscall_64+0xfa/0x3b0
[  486.083589][T18533]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.083604][T18533]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.083615][T18533]  ? clear_bhb_loop+0x60/0xb0
[  486.083627][T18533]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.083638][T18533] RIP: 0033:0x7fec16f8d3df
[  486.083648][T18533] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.083658][T18533] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.083670][T18533] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.083677][T18533] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.083683][T18533] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.083690][T18533] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.083696][T18533] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.083712][T18533]  </TASK>
[  486.113808][T18535] FAULT_INJECTION: forcing a failure.
[  486.113808][T18535] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.113835][T18535] CPU: 0 UID: 0 PID: 18535 Comm: syz.0.5983 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.113882][T18535] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.113890][T18535] Call Trace:
[  486.113895][T18535]  <TASK>
[  486.113901][T18535]  dump_stack_lvl+0x189/0x250
[  486.113920][T18535]  ? __pfx____ratelimit+0x10/0x10
[  486.113937][T18535]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.113949][T18535]  ? __pfx__printk+0x10/0x10
[  486.113963][T18535]  ? __might_fault+0xb0/0x130
[  486.113982][T18535]  should_fail_ex+0x414/0x560
[  486.114000][T18535]  _copy_from_user+0x2d/0xb0
[  486.114014][T18535]  kstrtouint_from_user+0xc4/0x170
[  486.114038][T18535]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.114064][T18535]  proc_fail_nth_write+0x88/0x200
[  486.114082][T18535]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.114100][T18535]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.114118][T18535]  vfs_write+0x27b/0xa90
[  486.114138][T18535]  ? __pfx_vfs_write+0x10/0x10
[  486.114152][T18535]  ? __fget_files+0x2a/0x420
[  486.114170][T18535]  ? __fget_files+0x3a0/0x420
[  486.114182][T18535]  ? __fget_files+0x2a/0x420
[  486.114197][T18535]  ksys_write+0x145/0x250
[  486.114204][T18535]  ? __fget_files+0x3a0/0x420
[  486.114213][T18535]  ? __pfx_ksys_write+0x10/0x10
[  486.114229][T18535]  ? do_syscall_64+0xbe/0x3b0
[  486.114239][T18535]  do_syscall_64+0xfa/0x3b0
[  486.114245][T18535]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.114256][T18535]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.114263][T18535]  ? clear_bhb_loop+0x60/0xb0
[  486.114272][T18535]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.114284][T18535] RIP: 0033:0x7fec16f8d3df
[  486.114297][T18535] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.114303][T18535] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.114313][T18535] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.114318][T18535] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.114323][T18535] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.114327][T18535] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.114332][T18535] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.114344][T18535]  </TASK>
[  486.140378][T18537] FAULT_INJECTION: forcing a failure.
[  486.140378][T18537] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.140435][T18537] CPU: 0 UID: 0 PID: 18537 Comm: syz.0.5984 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.140449][T18537] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.140456][T18537] Call Trace:
[  486.140462][T18537]  <TASK>
[  486.140467][T18537]  dump_stack_lvl+0x189/0x250
[  486.140486][T18537]  ? __pfx____ratelimit+0x10/0x10
[  486.140503][T18537]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.140515][T18537]  ? __pfx__printk+0x10/0x10
[  486.140530][T18537]  ? __might_fault+0xb0/0x130
[  486.140549][T18537]  should_fail_ex+0x414/0x560
[  486.140567][T18537]  _copy_from_user+0x2d/0xb0
[  486.140580][T18537]  kstrtouint_from_user+0xc4/0x170
[  486.140597][T18537]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.140623][T18537]  proc_fail_nth_write+0x88/0x200
[  486.140639][T18537]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.140654][T18537]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.140669][T18537]  vfs_write+0x27b/0xa90
[  486.140686][T18537]  ? __pfx_vfs_write+0x10/0x10
[  486.140699][T18537]  ? __fget_files+0x2a/0x420
[  486.140715][T18537]  ? __fget_files+0x3a0/0x420
[  486.140726][T18537]  ? __fget_files+0x2a/0x420
[  486.140743][T18537]  ksys_write+0x145/0x250
[  486.140753][T18537]  ? __fget_files+0x3a0/0x420
[  486.140766][T18537]  ? __pfx_ksys_write+0x10/0x10
[  486.140781][T18537]  ? do_syscall_64+0xbe/0x3b0
[  486.140795][T18537]  do_syscall_64+0xfa/0x3b0
[  486.140801][T18537]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.140811][T18537]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.140817][T18537]  ? clear_bhb_loop+0x60/0xb0
[  486.140826][T18537]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.140832][T18537] RIP: 0033:0x7fec16f8d3df
[  486.140839][T18537] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.140847][T18537] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.140858][T18537] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.140864][T18537] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.140870][T18537] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.140876][T18537] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.140882][T18537] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.140900][T18537]  </TASK>
[  486.176836][T18539] FAULT_INJECTION: forcing a failure.
[  486.176836][T18539] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.176862][T18539] CPU: 0 UID: 0 PID: 18539 Comm: syz.0.5985 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.176874][T18539] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.176882][T18539] Call Trace:
[  486.176887][T18539]  <TASK>
[  486.176892][T18539]  dump_stack_lvl+0x189/0x250
[  486.176933][T18539]  ? __pfx____ratelimit+0x10/0x10
[  486.176954][T18539]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.176966][T18539]  ? __pfx__printk+0x10/0x10
[  486.176980][T18539]  ? __might_fault+0xb0/0x130
[  486.177000][T18539]  should_fail_ex+0x414/0x560
[  486.177026][T18539]  _copy_from_user+0x2d/0xb0
[  486.177040][T18539]  kstrtouint_from_user+0xc4/0x170
[  486.177057][T18539]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.177083][T18539]  proc_fail_nth_write+0x88/0x200
[  486.177100][T18539]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.177119][T18539]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.177134][T18539]  vfs_write+0x27b/0xa90
[  486.177154][T18539]  ? __pfx_vfs_write+0x10/0x10
[  486.177166][T18539]  ? __fget_files+0x2a/0x420
[  486.177184][T18539]  ? __fget_files+0x3a0/0x420
[  486.177196][T18539]  ? __fget_files+0x2a/0x420
[  486.177214][T18539]  ksys_write+0x145/0x250
[  486.177225][T18539]  ? __fget_files+0x3a0/0x420
[  486.177238][T18539]  ? __pfx_ksys_write+0x10/0x10
[  486.177253][T18539]  ? do_syscall_64+0xbe/0x3b0
[  486.177271][T18539]  do_syscall_64+0xfa/0x3b0
[  486.177280][T18539]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.177295][T18539]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.177305][T18539]  ? clear_bhb_loop+0x60/0xb0
[  486.177318][T18539]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.177328][T18539] RIP: 0033:0x7fec16f8d3df
[  486.177339][T18539] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.177349][T18539] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.177361][T18539] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.177367][T18539] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.177372][T18539] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.177378][T18539] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.177384][T18539] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.177403][T18539]  </TASK>
[  486.205969][T18541] FAULT_INJECTION: forcing a failure.
[  486.205969][T18541] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.205997][T18541] CPU: 0 UID: 0 PID: 18541 Comm: syz.0.5986 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.206010][T18541] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.206017][T18541] Call Trace:
[  486.206023][T18541]  <TASK>
[  486.206028][T18541]  dump_stack_lvl+0x189/0x250
[  486.206049][T18541]  ? __pfx____ratelimit+0x10/0x10
[  486.206067][T18541]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.206079][T18541]  ? __pfx__printk+0x10/0x10
[  486.206093][T18541]  ? __might_fault+0xb0/0x130
[  486.206112][T18541]  should_fail_ex+0x414/0x560
[  486.206130][T18541]  _copy_from_user+0x2d/0xb0
[  486.206144][T18541]  kstrtouint_from_user+0xc4/0x170
[  486.206160][T18541]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.206185][T18541]  proc_fail_nth_write+0x88/0x200
[  486.206201][T18541]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.206220][T18541]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.206236][T18541]  vfs_write+0x27b/0xa90
[  486.206255][T18541]  ? __pfx_vfs_write+0x10/0x10
[  486.206266][T18541]  ? __fget_files+0x2a/0x420
[  486.206277][T18541]  ? __fget_files+0x3a0/0x420
[  486.206288][T18541]  ? __fget_files+0x2a/0x420
[  486.206305][T18541]  ksys_write+0x145/0x250
[  486.206316][T18541]  ? __fget_files+0x3a0/0x420
[  486.206329][T18541]  ? __pfx_ksys_write+0x10/0x10
[  486.206344][T18541]  ? do_syscall_64+0xbe/0x3b0
[  486.206357][T18541]  do_syscall_64+0xfa/0x3b0
[  486.206366][T18541]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.206382][T18541]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.206392][T18541]  ? clear_bhb_loop+0x60/0xb0
[  486.206406][T18541]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.206416][T18541] RIP: 0033:0x7fec16f8d3df
[  486.206426][T18541] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.206436][T18541] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.206448][T18541] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.206454][T18541] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.206461][T18541] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.206467][T18541] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.206474][T18541] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.206490][T18541]  </TASK>
[  486.241620][T18543] FAULT_INJECTION: forcing a failure.
[  486.241620][T18543] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.241646][T18543] CPU: 0 UID: 0 PID: 18543 Comm: syz.0.5987 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.241658][T18543] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.241665][T18543] Call Trace:
[  486.241671][T18543]  <TASK>
[  486.241677][T18543]  dump_stack_lvl+0x189/0x250
[  486.241696][T18543]  ? __pfx____ratelimit+0x10/0x10
[  486.241712][T18543]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.241722][T18543]  ? __pfx__printk+0x10/0x10
[  486.241731][T18543]  ? __might_fault+0xb0/0x130
[  486.241743][T18543]  should_fail_ex+0x414/0x560
[  486.241755][T18543]  _copy_from_user+0x2d/0xb0
[  486.241771][T18543]  kstrtouint_from_user+0xc4/0x170
[  486.241786][T18543]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.241812][T18543]  proc_fail_nth_write+0x88/0x200
[  486.241828][T18543]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.241847][T18543]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.241863][T18543]  vfs_write+0x27b/0xa90
[  486.241880][T18543]  ? __pfx_vfs_write+0x10/0x10
[  486.241893][T18543]  ? __fget_files+0x2a/0x420
[  486.241909][T18543]  ? __fget_files+0x3a0/0x420
[  486.241920][T18543]  ? __fget_files+0x2a/0x420
[  486.241939][T18543]  ksys_write+0x145/0x250
[  486.241950][T18543]  ? __fget_files+0x3a0/0x420
[  486.241963][T18543]  ? __pfx_ksys_write+0x10/0x10
[  486.241977][T18543]  ? do_syscall_64+0xbe/0x3b0
[  486.241991][T18543]  do_syscall_64+0xfa/0x3b0
[  486.242000][T18543]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.242014][T18543]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.242026][T18543]  ? clear_bhb_loop+0x60/0xb0
[  486.242039][T18543]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.242049][T18543] RIP: 0033:0x7fec16f8d3df
[  486.242058][T18543] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.242067][T18543] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.242080][T18543] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.242088][T18543] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.242094][T18543] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.242101][T18543] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.242107][T18543] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.242123][T18543]  </TASK>
[  486.276063][T18545] FAULT_INJECTION: forcing a failure.
[  486.276063][T18545] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.276088][T18545] CPU: 0 UID: 0 PID: 18545 Comm: syz.0.5988 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.276101][T18545] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.276107][T18545] Call Trace:
[  486.276112][T18545]  <TASK>
[  486.276117][T18545]  dump_stack_lvl+0x189/0x250
[  486.276130][T18545]  ? __pfx____ratelimit+0x10/0x10
[  486.276146][T18545]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.276157][T18545]  ? __pfx__printk+0x10/0x10
[  486.276173][T18545]  ? __might_fault+0xb0/0x130
[  486.276193][T18545]  should_fail_ex+0x414/0x560
[  486.276211][T18545]  _copy_from_user+0x2d/0xb0
[  486.276226][T18545]  kstrtouint_from_user+0xc4/0x170
[  486.276239][T18545]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.276259][T18545]  proc_fail_nth_write+0x88/0x200
[  486.276275][T18545]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.276301][T18545]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.276315][T18545]  vfs_write+0x27b/0xa90
[  486.276335][T18545]  ? __pfx_vfs_write+0x10/0x10
[  486.276348][T18545]  ? __fget_files+0x2a/0x420
[  486.276365][T18545]  ? __fget_files+0x3a0/0x420
[  486.276373][T18545]  ? __fget_files+0x2a/0x420
[  486.276385][T18545]  ksys_write+0x145/0x250
[  486.276392][T18545]  ? __fget_files+0x3a0/0x420
[  486.276451][T18545]  ? __pfx_ksys_write+0x10/0x10
[  486.276467][T18545]  ? do_syscall_64+0xbe/0x3b0
[  486.276479][T18545]  do_syscall_64+0xfa/0x3b0
[  486.276488][T18545]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.276503][T18545]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.276518][T18545]  ? clear_bhb_loop+0x60/0xb0
[  486.276533][T18545]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.276544][T18545] RIP: 0033:0x7fec16f8d3df
[  486.276556][T18545] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.276565][T18545] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.276578][T18545] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.276585][T18545] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.276591][T18545] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.276598][T18545] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.276604][T18545] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.276622][T18545]  </TASK>
[  486.296799][T18547] FAULT_INJECTION: forcing a failure.
[  486.296799][T18547] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.296827][T18547] CPU: 0 UID: 0 PID: 18547 Comm: syz.0.5989 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.296840][T18547] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.296847][T18547] Call Trace:
[  486.296852][T18547]  <TASK>
[  486.296857][T18547]  dump_stack_lvl+0x189/0x250
[  486.296876][T18547]  ? __pfx____ratelimit+0x10/0x10
[  486.296892][T18547]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.296927][T18547]  ? __pfx__printk+0x10/0x10
[  486.296944][T18547]  ? __might_fault+0xb0/0x130
[  486.296964][T18547]  should_fail_ex+0x414/0x560
[  486.296981][T18547]  _copy_from_user+0x2d/0xb0
[  486.296994][T18547]  kstrtouint_from_user+0xc4/0x170
[  486.297011][T18547]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.297039][T18547]  proc_fail_nth_write+0x88/0x200
[  486.297056][T18547]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.297073][T18547]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.297089][T18547]  vfs_write+0x27b/0xa90
[  486.297109][T18547]  ? __pfx_vfs_write+0x10/0x10
[  486.297122][T18547]  ? __fget_files+0x2a/0x420
[  486.297137][T18547]  ? __fget_files+0x3a0/0x420
[  486.297148][T18547]  ? __fget_files+0x2a/0x420
[  486.297169][T18547]  ksys_write+0x145/0x250
[  486.297180][T18547]  ? __fget_files+0x3a0/0x420
[  486.297193][T18547]  ? __pfx_ksys_write+0x10/0x10
[  486.297209][T18547]  ? do_syscall_64+0xbe/0x3b0
[  486.297222][T18547]  do_syscall_64+0xfa/0x3b0
[  486.297231][T18547]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.297248][T18547]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.297258][T18547]  ? clear_bhb_loop+0x60/0xb0
[  486.297271][T18547]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.297282][T18547] RIP: 0033:0x7fec16f8d3df
[  486.297292][T18547] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.297301][T18547] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.297314][T18547] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.297321][T18547] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.297329][T18547] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.297335][T18547] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.297341][T18547] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.297359][T18547]  </TASK>
[  486.337863][T18549] FAULT_INJECTION: forcing a failure.
[  486.337863][T18549] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.337890][T18549] CPU: 0 UID: 0 PID: 18549 Comm: syz.0.5990 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.337904][T18549] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.337911][T18549] Call Trace:
[  486.337916][T18549]  <TASK>
[  486.337922][T18549]  dump_stack_lvl+0x189/0x250
[  486.337943][T18549]  ? __pfx____ratelimit+0x10/0x10
[  486.337960][T18549]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.337974][T18549]  ? __pfx__printk+0x10/0x10
[  486.337990][T18549]  ? __might_fault+0xb0/0x130
[  486.338013][T18549]  should_fail_ex+0x414/0x560
[  486.338032][T18549]  _copy_from_user+0x2d/0xb0
[  486.338047][T18549]  kstrtouint_from_user+0xc4/0x170
[  486.338066][T18549]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.338096][T18549]  proc_fail_nth_write+0x88/0x200
[  486.338113][T18549]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.338132][T18549]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.338151][T18549]  vfs_write+0x27b/0xa90
[  486.338171][T18549]  ? __pfx_vfs_write+0x10/0x10
[  486.338184][T18549]  ? __fget_files+0x2a/0x420
[  486.338202][T18549]  ? __fget_files+0x3a0/0x420
[  486.338214][T18549]  ? __fget_files+0x2a/0x420
[  486.338233][T18549]  ksys_write+0x145/0x250
[  486.338246][T18549]  ? __fget_files+0x3a0/0x420
[  486.338259][T18549]  ? __pfx_ksys_write+0x10/0x10
[  486.338275][T18549]  ? do_syscall_64+0xbe/0x3b0
[  486.338289][T18549]  do_syscall_64+0xfa/0x3b0
[  486.338300][T18549]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.338316][T18549]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.338327][T18549]  ? clear_bhb_loop+0x60/0xb0
[  486.338342][T18549]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.338352][T18549] RIP: 0033:0x7fec16f8d3df
[  486.338364][T18549] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.338375][T18549] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.338389][T18549] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.338396][T18549] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.338403][T18549] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.338411][T18549] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.338418][T18549] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.338437][T18549]  </TASK>
[  486.376318][T18551] FAULT_INJECTION: forcing a failure.
[  486.376318][T18551] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.376346][T18551] CPU: 0 UID: 0 PID: 18551 Comm: syz.0.5991 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.376360][T18551] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.376368][T18551] Call Trace:
[  486.376374][T18551]  <TASK>
[  486.376380][T18551]  dump_stack_lvl+0x189/0x250
[  486.376441][T18551]  ? __pfx____ratelimit+0x10/0x10
[  486.376459][T18551]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.376469][T18551]  ? __pfx__printk+0x10/0x10
[  486.376484][T18551]  ? __might_fault+0xb0/0x130
[  486.376506][T18551]  should_fail_ex+0x414/0x560
[  486.376529][T18551]  _copy_from_user+0x2d/0xb0
[  486.376545][T18551]  kstrtouint_from_user+0xc4/0x170
[  486.376567][T18551]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.376586][T18551]  proc_fail_nth_write+0x88/0x200
[  486.376598][T18551]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.376612][T18551]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.376623][T18551]  vfs_write+0x27b/0xa90
[  486.376641][T18551]  ? __pfx_vfs_write+0x10/0x10
[  486.376651][T18551]  ? __fget_files+0x2a/0x420
[  486.376669][T18551]  ? __fget_files+0x3a0/0x420
[  486.376681][T18551]  ? __fget_files+0x2a/0x420
[  486.376701][T18551]  ksys_write+0x145/0x250
[  486.376714][T18551]  ? __fget_files+0x3a0/0x420
[  486.376730][T18551]  ? __pfx_ksys_write+0x10/0x10
[  486.376747][T18551]  ? do_syscall_64+0xbe/0x3b0
[  486.376761][T18551]  do_syscall_64+0xfa/0x3b0
[  486.376779][T18551]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.376798][T18551]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.376810][T18551]  ? clear_bhb_loop+0x60/0xb0
[  486.376826][T18551]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.376838][T18551] RIP: 0033:0x7fec16f8d3df
[  486.376850][T18551] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.376861][T18551] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.376877][T18551] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.376886][T18551] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.376894][T18551] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.376926][T18551] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.376934][T18551] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.376957][T18551]  </TASK>
[  486.400505][T18553] FAULT_INJECTION: forcing a failure.
[  486.400505][T18553] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.400529][T18553] CPU: 0 UID: 0 PID: 18553 Comm: syz.0.5992 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.400542][T18553] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.400549][T18553] Call Trace:
[  486.400554][T18553]  <TASK>
[  486.400559][T18553]  dump_stack_lvl+0x189/0x250
[  486.400578][T18553]  ? __pfx____ratelimit+0x10/0x10
[  486.400593][T18553]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.400605][T18553]  ? __pfx__printk+0x10/0x10
[  486.400618][T18553]  ? __might_fault+0xb0/0x130
[  486.400637][T18553]  should_fail_ex+0x414/0x560
[  486.400656][T18553]  _copy_from_user+0x2d/0xb0
[  486.400669][T18553]  kstrtouint_from_user+0xc4/0x170
[  486.400687][T18553]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.400712][T18553]  proc_fail_nth_write+0x88/0x200
[  486.400729][T18553]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.400748][T18553]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.400763][T18553]  vfs_write+0x27b/0xa90
[  486.400781][T18553]  ? __pfx_vfs_write+0x10/0x10
[  486.400794][T18553]  ? __fget_files+0x2a/0x420
[  486.400809][T18553]  ? __fget_files+0x3a0/0x420
[  486.400820][T18553]  ? __fget_files+0x2a/0x420
[  486.400839][T18553]  ksys_write+0x145/0x250
[  486.400850][T18553]  ? __fget_files+0x3a0/0x420
[  486.400864][T18553]  ? __pfx_ksys_write+0x10/0x10
[  486.400878][T18553]  ? do_syscall_64+0xbe/0x3b0
[  486.400888][T18553]  do_syscall_64+0xfa/0x3b0
[  486.400896][T18553]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.400911][T18553]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.400921][T18553]  ? clear_bhb_loop+0x60/0xb0
[  486.400934][T18553]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.400954][T18553] RIP: 0033:0x7fec16f8d3df
[  486.400963][T18553] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.400973][T18553] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.400986][T18553] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.400993][T18553] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.400999][T18553] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.401004][T18553] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.401010][T18553] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.401028][T18553]  </TASK>
[  486.435860][T18555] FAULT_INJECTION: forcing a failure.
[  486.435860][T18555] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.435884][T18555] CPU: 0 UID: 0 PID: 18555 Comm: syz.0.5993 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.435896][T18555] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.435903][T18555] Call Trace:
[  486.435908][T18555]  <TASK>
[  486.435913][T18555]  dump_stack_lvl+0x189/0x250
[  486.435931][T18555]  ? __pfx____ratelimit+0x10/0x10
[  486.435948][T18555]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.435961][T18555]  ? __pfx__printk+0x10/0x10
[  486.435975][T18555]  ? __might_fault+0xb0/0x130
[  486.435993][T18555]  should_fail_ex+0x414/0x560
[  486.436024][T18555]  _copy_from_user+0x2d/0xb0
[  486.436038][T18555]  kstrtouint_from_user+0xc4/0x170
[  486.436055][T18555]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.436080][T18555]  proc_fail_nth_write+0x88/0x200
[  486.436098][T18555]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.436117][T18555]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.436133][T18555]  vfs_write+0x27b/0xa90
[  486.436149][T18555]  ? __pfx_vfs_write+0x10/0x10
[  486.436162][T18555]  ? __fget_files+0x2a/0x420
[  486.436179][T18555]  ? __fget_files+0x3a0/0x420
[  486.436191][T18555]  ? __fget_files+0x2a/0x420
[  486.436209][T18555]  ksys_write+0x145/0x250
[  486.436218][T18555]  ? __fget_files+0x3a0/0x420
[  486.436226][T18555]  ? __pfx_ksys_write+0x10/0x10
[  486.436239][T18555]  ? do_syscall_64+0xbe/0x3b0
[  486.436251][T18555]  do_syscall_64+0xfa/0x3b0
[  486.436260][T18555]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.436275][T18555]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.436286][T18555]  ? clear_bhb_loop+0x60/0xb0
[  486.436299][T18555]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.436309][T18555] RIP: 0033:0x7fec16f8d3df
[  486.436319][T18555] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.436328][T18555] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.436340][T18555] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.436348][T18555] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.436355][T18555] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.436361][T18555] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.436367][T18555] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.436384][T18555]  </TASK>
[  486.464818][T18557] FAULT_INJECTION: forcing a failure.
[  486.464818][T18557] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.464845][T18557] CPU: 0 UID: 0 PID: 18557 Comm: syz.0.5994 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.464858][T18557] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.464865][T18557] Call Trace:
[  486.464870][T18557]  <TASK>
[  486.464875][T18557]  dump_stack_lvl+0x189/0x250
[  486.464894][T18557]  ? __pfx____ratelimit+0x10/0x10
[  486.464910][T18557]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.464922][T18557]  ? __pfx__printk+0x10/0x10
[  486.464937][T18557]  ? __might_fault+0xb0/0x130
[  486.464956][T18557]  should_fail_ex+0x414/0x560
[  486.464974][T18557]  _copy_from_user+0x2d/0xb0
[  486.464987][T18557]  kstrtouint_from_user+0xc4/0x170
[  486.465006][T18557]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.465031][T18557]  proc_fail_nth_write+0x88/0x200
[  486.465062][T18557]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.465081][T18557]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.465098][T18557]  vfs_write+0x27b/0xa90
[  486.465116][T18557]  ? __pfx_vfs_write+0x10/0x10
[  486.465127][T18557]  ? __fget_files+0x2a/0x420
[  486.465142][T18557]  ? __fget_files+0x3a0/0x420
[  486.465154][T18557]  ? __fget_files+0x2a/0x420
[  486.465173][T18557]  ksys_write+0x145/0x250
[  486.465183][T18557]  ? __fget_files+0x3a0/0x420
[  486.465194][T18557]  ? __pfx_ksys_write+0x10/0x10
[  486.465209][T18557]  ? do_syscall_64+0xbe/0x3b0
[  486.465222][T18557]  do_syscall_64+0xfa/0x3b0
[  486.465230][T18557]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.465246][T18557]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.465257][T18557]  ? clear_bhb_loop+0x60/0xb0
[  486.465270][T18557]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.465280][T18557] RIP: 0033:0x7fec16f8d3df
[  486.465291][T18557] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.465300][T18557] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.465309][T18557] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.465316][T18557] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.465322][T18557] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.465328][T18557] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.465333][T18557] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.465350][T18557]  </TASK>
[  486.500785][T18559] FAULT_INJECTION: forcing a failure.
[  486.500785][T18559] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.500811][T18559] CPU: 0 UID: 0 PID: 18559 Comm: syz.0.5995 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.500824][T18559] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.500832][T18559] Call Trace:
[  486.500837][T18559]  <TASK>
[  486.500842][T18559]  dump_stack_lvl+0x189/0x250
[  486.500860][T18559]  ? __pfx____ratelimit+0x10/0x10
[  486.500876][T18559]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.500888][T18559]  ? __pfx__printk+0x10/0x10
[  486.500903][T18559]  ? __might_fault+0xb0/0x130
[  486.500924][T18559]  should_fail_ex+0x414/0x560
[  486.500941][T18559]  _copy_from_user+0x2d/0xb0
[  486.500954][T18559]  kstrtouint_from_user+0xc4/0x170
[  486.500971][T18559]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.500998][T18559]  proc_fail_nth_write+0x88/0x200
[  486.501013][T18559]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.501032][T18559]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.501047][T18559]  vfs_write+0x27b/0xa90
[  486.501066][T18559]  ? __pfx_vfs_write+0x10/0x10
[  486.501078][T18559]  ? __fget_files+0x2a/0x420
[  486.501094][T18559]  ? __fget_files+0x3a0/0x420
[  486.501105][T18559]  ? __fget_files+0x2a/0x420
[  486.501124][T18559]  ksys_write+0x145/0x250
[  486.501134][T18559]  ? __fget_files+0x3a0/0x420
[  486.501147][T18559]  ? __pfx_ksys_write+0x10/0x10
[  486.501162][T18559]  ? do_syscall_64+0xbe/0x3b0
[  486.501176][T18559]  do_syscall_64+0xfa/0x3b0
[  486.501185][T18559]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.501199][T18559]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.501210][T18559]  ? clear_bhb_loop+0x60/0xb0
[  486.501229][T18559]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.501239][T18559] RIP: 0033:0x7fec16f8d3df
[  486.501251][T18559] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.501260][T18559] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.501273][T18559] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.501280][T18559] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.501286][T18559] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.501293][T18559] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.501299][T18559] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.501316][T18559]  </TASK>
[  486.531358][T18561] FAULT_INJECTION: forcing a failure.
[  486.531358][T18561] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.531389][T18561] CPU: 0 UID: 0 PID: 18561 Comm: syz.0.5996 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.531405][T18561] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.531413][T18561] Call Trace:
[  486.531419][T18561]  <TASK>
[  486.531425][T18561]  dump_stack_lvl+0x189/0x250
[  486.531447][T18561]  ? __pfx____ratelimit+0x10/0x10
[  486.531468][T18561]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.531484][T18561]  ? __pfx__printk+0x10/0x10
[  486.531502][T18561]  ? __might_fault+0xb0/0x130
[  486.531527][T18561]  should_fail_ex+0x414/0x560
[  486.531550][T18561]  _copy_from_user+0x2d/0xb0
[  486.531568][T18561]  kstrtouint_from_user+0xc4/0x170
[  486.531590][T18561]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.531622][T18561]  proc_fail_nth_write+0x88/0x200
[  486.531642][T18561]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.531664][T18561]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.531692][T18561]  vfs_write+0x27b/0xa90
[  486.531713][T18561]  ? __pfx_vfs_write+0x10/0x10
[  486.531729][T18561]  ? __fget_files+0x2a/0x420
[  486.531750][T18561]  ? __fget_files+0x3a0/0x420
[  486.531770][T18561]  ? __fget_files+0x2a/0x420
[  486.531790][T18561]  ksys_write+0x145/0x250
[  486.531803][T18561]  ? __fget_files+0x3a0/0x420
[  486.531818][T18561]  ? __pfx_ksys_write+0x10/0x10
[  486.531834][T18561]  ? do_syscall_64+0xbe/0x3b0
[  486.531850][T18561]  do_syscall_64+0xfa/0x3b0
[  486.531865][T18561]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.531883][T18561]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.531896][T18561]  ? clear_bhb_loop+0x60/0xb0
[  486.531912][T18561]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.531925][T18561] RIP: 0033:0x7fec16f8d3df
[  486.531937][T18561] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.531949][T18561] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.531965][T18561] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.531973][T18561] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.531982][T18561] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.531991][T18561] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.531998][T18561] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.532019][T18561]  </TASK>
[  486.562826][T18563] FAULT_INJECTION: forcing a failure.
[  486.562826][T18563] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.562853][T18563] CPU: 0 UID: 0 PID: 18563 Comm: syz.0.5997 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.562866][T18563] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.562879][T18563] Call Trace:
[  486.562885][T18563]  <TASK>
[  486.562890][T18563]  dump_stack_lvl+0x189/0x250
[  486.562909][T18563]  ? __pfx____ratelimit+0x10/0x10
[  486.562926][T18563]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.562938][T18563]  ? __pfx__printk+0x10/0x10
[  486.562953][T18563]  ? __might_fault+0xb0/0x130
[  486.562975][T18563]  should_fail_ex+0x414/0x560
[  486.562995][T18563]  _copy_from_user+0x2d/0xb0
[  486.563005][T18563]  kstrtouint_from_user+0xc4/0x170
[  486.563018][T18563]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.563039][T18563]  proc_fail_nth_write+0x88/0x200
[  486.563056][T18563]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.563076][T18563]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.563094][T18563]  vfs_write+0x27b/0xa90
[  486.563114][T18563]  ? __pfx_vfs_write+0x10/0x10
[  486.563125][T18563]  ? __fget_files+0x2a/0x420
[  486.563136][T18563]  ? __fget_files+0x3a0/0x420
[  486.563144][T18563]  ? __fget_files+0x2a/0x420
[  486.563156][T18563]  ksys_write+0x145/0x250
[  486.563163][T18563]  ? __fget_files+0x3a0/0x420
[  486.563172][T18563]  ? __pfx_ksys_write+0x10/0x10
[  486.563186][T18563]  ? do_syscall_64+0xbe/0x3b0
[  486.563199][T18563]  do_syscall_64+0xfa/0x3b0
[  486.563209][T18563]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.563224][T18563]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.563235][T18563]  ? clear_bhb_loop+0x60/0xb0
[  486.563248][T18563]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.563259][T18563] RIP: 0033:0x7fec16f8d3df
[  486.563271][T18563] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.563281][T18563] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.563300][T18563] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.563307][T18563] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.563312][T18563] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.563316][T18563] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.563321][T18563] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.563333][T18563]  </TASK>
[  486.593264][T18565] FAULT_INJECTION: forcing a failure.
[  486.593264][T18565] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.593288][T18565] CPU: 0 UID: 0 PID: 18565 Comm: syz.0.5998 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.593301][T18565] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.593307][T18565] Call Trace:
[  486.593312][T18565]  <TASK>
[  486.593318][T18565]  dump_stack_lvl+0x189/0x250
[  486.593334][T18565]  ? __pfx____ratelimit+0x10/0x10
[  486.593351][T18565]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.593362][T18565]  ? __pfx__printk+0x10/0x10
[  486.593377][T18565]  ? __might_fault+0xb0/0x130
[  486.593397][T18565]  should_fail_ex+0x414/0x560
[  486.593416][T18565]  _copy_from_user+0x2d/0xb0
[  486.593429][T18565]  kstrtouint_from_user+0xc4/0x170
[  486.593446][T18565]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.593472][T18565]  proc_fail_nth_write+0x88/0x200
[  486.593488][T18565]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.593507][T18565]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.593524][T18565]  vfs_write+0x27b/0xa90
[  486.593541][T18565]  ? __pfx_vfs_write+0x10/0x10
[  486.593554][T18565]  ? __fget_files+0x2a/0x420
[  486.593570][T18565]  ? __fget_files+0x3a0/0x420
[  486.593582][T18565]  ? __fget_files+0x2a/0x420
[  486.593599][T18565]  ksys_write+0x145/0x250
[  486.593610][T18565]  ? __fget_files+0x3a0/0x420
[  486.593622][T18565]  ? __pfx_ksys_write+0x10/0x10
[  486.593635][T18565]  ? do_syscall_64+0xbe/0x3b0
[  486.593648][T18565]  do_syscall_64+0xfa/0x3b0
[  486.593657][T18565]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.593672][T18565]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.593682][T18565]  ? clear_bhb_loop+0x60/0xb0
[  486.593696][T18565]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.593706][T18565] RIP: 0033:0x7fec16f8d3df
[  486.593726][T18565] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.593735][T18565] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.593747][T18565] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.593754][T18565] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.593760][T18565] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.593766][T18565] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.593772][T18565] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.593789][T18565]  </TASK>
[  486.624169][T18567] FAULT_INJECTION: forcing a failure.
[  486.624169][T18567] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.624192][T18567] CPU: 0 UID: 0 PID: 18567 Comm: syz.0.5999 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.624205][T18567] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.624212][T18567] Call Trace:
[  486.624217][T18567]  <TASK>
[  486.624223][T18567]  dump_stack_lvl+0x189/0x250
[  486.624240][T18567]  ? __pfx____ratelimit+0x10/0x10
[  486.624256][T18567]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.624268][T18567]  ? __pfx__printk+0x10/0x10
[  486.624282][T18567]  ? __might_fault+0xb0/0x130
[  486.624303][T18567]  should_fail_ex+0x414/0x560
[  486.624321][T18567]  _copy_from_user+0x2d/0xb0
[  486.624334][T18567]  kstrtouint_from_user+0xc4/0x170
[  486.624350][T18567]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.624374][T18567]  proc_fail_nth_write+0x88/0x200
[  486.624428][T18567]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.624448][T18567]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.624470][T18567]  vfs_write+0x27b/0xa90
[  486.624492][T18567]  ? __pfx_vfs_write+0x10/0x10
[  486.624504][T18567]  ? __fget_files+0x2a/0x420
[  486.624519][T18567]  ? __fget_files+0x3a0/0x420
[  486.624530][T18567]  ? __fget_files+0x2a/0x420
[  486.624549][T18567]  ksys_write+0x145/0x250
[  486.624559][T18567]  ? __fget_files+0x3a0/0x420
[  486.624571][T18567]  ? __pfx_ksys_write+0x10/0x10
[  486.624586][T18567]  ? do_syscall_64+0xbe/0x3b0
[  486.624598][T18567]  do_syscall_64+0xfa/0x3b0
[  486.624606][T18567]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.624621][T18567]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.624632][T18567]  ? clear_bhb_loop+0x60/0xb0
[  486.624645][T18567]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.624656][T18567] RIP: 0033:0x7fec16f8d3df
[  486.624667][T18567] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.624676][T18567] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.624689][T18567] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.624694][T18567] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.624699][T18567] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.624703][T18567] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.624707][T18567] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.624718][T18567]  </TASK>
[  486.662586][T18569] FAULT_INJECTION: forcing a failure.
[  486.662586][T18569] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.662611][T18569] CPU: 0 UID: 0 PID: 18569 Comm: syz.0.6000 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.662624][T18569] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.662631][T18569] Call Trace:
[  486.662636][T18569]  <TASK>
[  486.662641][T18569]  dump_stack_lvl+0x189/0x250
[  486.662658][T18569]  ? __pfx____ratelimit+0x10/0x10
[  486.662674][T18569]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.662686][T18569]  ? __pfx__printk+0x10/0x10
[  486.662701][T18569]  ? __might_fault+0xb0/0x130
[  486.662721][T18569]  should_fail_ex+0x414/0x560
[  486.662747][T18569]  _copy_from_user+0x2d/0xb0
[  486.662761][T18569]  kstrtouint_from_user+0xc4/0x170
[  486.662779][T18569]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.662806][T18569]  proc_fail_nth_write+0x88/0x200
[  486.662823][T18569]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.662841][T18569]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.662857][T18569]  vfs_write+0x27b/0xa90
[  486.662875][T18569]  ? __pfx_vfs_write+0x10/0x10
[  486.662888][T18569]  ? __fget_files+0x2a/0x420
[  486.662904][T18569]  ? __fget_files+0x3a0/0x420
[  486.662915][T18569]  ? __fget_files+0x2a/0x420
[  486.662938][T18569]  ksys_write+0x145/0x250
[  486.662949][T18569]  ? __fget_files+0x3a0/0x420
[  486.662960][T18569]  ? __pfx_ksys_write+0x10/0x10
[  486.662975][T18569]  ? do_syscall_64+0xbe/0x3b0
[  486.662988][T18569]  do_syscall_64+0xfa/0x3b0
[  486.662997][T18569]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.663013][T18569]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.663024][T18569]  ? clear_bhb_loop+0x60/0xb0
[  486.663037][T18569]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.663047][T18569] RIP: 0033:0x7fec16f8d3df
[  486.663057][T18569] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.663065][T18569] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.663077][T18569] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.663084][T18569] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.663090][T18569] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.663096][T18569] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.663102][T18569] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.663121][T18569]  </TASK>
[  486.691817][T18571] FAULT_INJECTION: forcing a failure.
[  486.691817][T18571] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.691844][T18571] CPU: 0 UID: 0 PID: 18571 Comm: syz.0.6001 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.691857][T18571] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.691864][T18571] Call Trace:
[  486.691868][T18571]  <TASK>
[  486.691873][T18571]  dump_stack_lvl+0x189/0x250
[  486.691893][T18571]  ? __pfx____ratelimit+0x10/0x10
[  486.691909][T18571]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.691921][T18571]  ? __pfx__printk+0x10/0x10
[  486.691936][T18571]  ? __might_fault+0xb0/0x130
[  486.691955][T18571]  should_fail_ex+0x414/0x560
[  486.691973][T18571]  _copy_from_user+0x2d/0xb0
[  486.691988][T18571]  kstrtouint_from_user+0xc4/0x170
[  486.692005][T18571]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.692030][T18571]  proc_fail_nth_write+0x88/0x200
[  486.692046][T18571]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.692064][T18571]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.692080][T18571]  vfs_write+0x27b/0xa90
[  486.692098][T18571]  ? __pfx_vfs_write+0x10/0x10
[  486.692110][T18571]  ? __fget_files+0x2a/0x420
[  486.692126][T18571]  ? __fget_files+0x3a0/0x420
[  486.692138][T18571]  ? __fget_files+0x2a/0x420
[  486.692156][T18571]  ksys_write+0x145/0x250
[  486.692167][T18571]  ? __fget_files+0x3a0/0x420
[  486.692180][T18571]  ? __pfx_ksys_write+0x10/0x10
[  486.692195][T18571]  ? do_syscall_64+0xbe/0x3b0
[  486.692208][T18571]  do_syscall_64+0xfa/0x3b0
[  486.692217][T18571]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.692233][T18571]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.692243][T18571]  ? clear_bhb_loop+0x60/0xb0
[  486.692257][T18571]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.692267][T18571] RIP: 0033:0x7fec16f8d3df
[  486.692276][T18571] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.692286][T18571] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.692300][T18571] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.692308][T18571] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.692315][T18571] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.692321][T18571] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.692328][T18571] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.692342][T18571]  </TASK>
[  486.731444][T18573] FAULT_INJECTION: forcing a failure.
[  486.731444][T18573] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.731470][T18573] CPU: 0 UID: 0 PID: 18573 Comm: syz.0.6002 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.731482][T18573] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.731489][T18573] Call Trace:
[  486.731494][T18573]  <TASK>
[  486.731500][T18573]  dump_stack_lvl+0x189/0x250
[  486.731518][T18573]  ? __pfx____ratelimit+0x10/0x10
[  486.731535][T18573]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.731547][T18573]  ? __pfx__printk+0x10/0x10
[  486.731559][T18573]  ? __might_fault+0xb0/0x130
[  486.731575][T18573]  should_fail_ex+0x414/0x560
[  486.731591][T18573]  _copy_from_user+0x2d/0xb0
[  486.731602][T18573]  kstrtouint_from_user+0xc4/0x170
[  486.731617][T18573]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.731638][T18573]  proc_fail_nth_write+0x88/0x200
[  486.731651][T18573]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.731667][T18573]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.731681][T18573]  vfs_write+0x27b/0xa90
[  486.731702][T18573]  ? __pfx_vfs_write+0x10/0x10
[  486.731717][T18573]  ? __fget_files+0x2a/0x420
[  486.731733][T18573]  ? __fget_files+0x3a0/0x420
[  486.731745][T18573]  ? __fget_files+0x2a/0x420
[  486.731765][T18573]  ksys_write+0x145/0x250
[  486.731775][T18573]  ? __fget_files+0x3a0/0x420
[  486.731787][T18573]  ? __pfx_ksys_write+0x10/0x10
[  486.731802][T18573]  ? do_syscall_64+0xbe/0x3b0
[  486.731813][T18573]  do_syscall_64+0xfa/0x3b0
[  486.731822][T18573]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.731836][T18573]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.731845][T18573]  ? clear_bhb_loop+0x60/0xb0
[  486.731857][T18573]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.731866][T18573] RIP: 0033:0x7fec16f8d3df
[  486.731876][T18573] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.731886][T18573] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.731897][T18573] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.731903][T18573] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.731909][T18573] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.731915][T18573] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.731920][T18573] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.731939][T18573]  </TASK>
[  486.761496][T18575] FAULT_INJECTION: forcing a failure.
[  486.761496][T18575] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.761524][T18575] CPU: 0 UID: 0 PID: 18575 Comm: syz.0.6003 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.761538][T18575] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.761545][T18575] Call Trace:
[  486.761551][T18575]  <TASK>
[  486.761557][T18575]  dump_stack_lvl+0x189/0x250
[  486.761574][T18575]  ? __pfx____ratelimit+0x10/0x10
[  486.761592][T18575]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.761604][T18575]  ? __pfx__printk+0x10/0x10
[  486.761619][T18575]  ? __might_fault+0xb0/0x130
[  486.761641][T18575]  should_fail_ex+0x414/0x560
[  486.761660][T18575]  _copy_from_user+0x2d/0xb0
[  486.761685][T18575]  kstrtouint_from_user+0xc4/0x170
[  486.761705][T18575]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.761732][T18575]  proc_fail_nth_write+0x88/0x200
[  486.761750][T18575]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.761769][T18575]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.761786][T18575]  vfs_write+0x27b/0xa90
[  486.761807][T18575]  ? __pfx_vfs_write+0x10/0x10
[  486.761821][T18575]  ? __fget_files+0x2a/0x420
[  486.761838][T18575]  ? __fget_files+0x3a0/0x420
[  486.761851][T18575]  ? __fget_files+0x2a/0x420
[  486.761871][T18575]  ksys_write+0x145/0x250
[  486.761883][T18575]  ? __fget_files+0x3a0/0x420
[  486.761897][T18575]  ? __pfx_ksys_write+0x10/0x10
[  486.761913][T18575]  ? do_syscall_64+0xbe/0x3b0
[  486.761926][T18575]  do_syscall_64+0xfa/0x3b0
[  486.761937][T18575]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.761954][T18575]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.761965][T18575]  ? clear_bhb_loop+0x60/0xb0
[  486.761979][T18575]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.761990][T18575] RIP: 0033:0x7fec16f8d3df
[  486.762002][T18575] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.762013][T18575] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.762026][T18575] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.762033][T18575] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.762041][T18575] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.762047][T18575] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.762054][T18575] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.762073][T18575]  </TASK>
[  486.786263][T18577] FAULT_INJECTION: forcing a failure.
[  486.786263][T18577] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.786289][T18577] CPU: 0 UID: 0 PID: 18577 Comm: syz.0.6004 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.786302][T18577] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.786308][T18577] Call Trace:
[  486.786313][T18577]  <TASK>
[  486.786318][T18577]  dump_stack_lvl+0x189/0x250
[  486.786337][T18577]  ? __pfx____ratelimit+0x10/0x10
[  486.786354][T18577]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.786367][T18577]  ? __pfx__printk+0x10/0x10
[  486.786382][T18577]  ? __might_fault+0xb0/0x130
[  486.786403][T18577]  should_fail_ex+0x414/0x560
[  486.786421][T18577]  _copy_from_user+0x2d/0xb0
[  486.786436][T18577]  kstrtouint_from_user+0xc4/0x170
[  486.786453][T18577]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.786479][T18577]  proc_fail_nth_write+0x88/0x200
[  486.786495][T18577]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.786513][T18577]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.786531][T18577]  vfs_write+0x27b/0xa90
[  486.786550][T18577]  ? __pfx_vfs_write+0x10/0x10
[  486.786563][T18577]  ? __fget_files+0x2a/0x420
[  486.786579][T18577]  ? __fget_files+0x3a0/0x420
[  486.786591][T18577]  ? __fget_files+0x2a/0x420
[  486.786609][T18577]  ksys_write+0x145/0x250
[  486.786618][T18577]  ? __fget_files+0x3a0/0x420
[  486.786631][T18577]  ? __pfx_ksys_write+0x10/0x10
[  486.786646][T18577]  ? do_syscall_64+0xbe/0x3b0
[  486.786660][T18577]  do_syscall_64+0xfa/0x3b0
[  486.786669][T18577]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.786693][T18577]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.786703][T18577]  ? clear_bhb_loop+0x60/0xb0
[  486.786717][T18577]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.786727][T18577] RIP: 0033:0x7fec16f8d3df
[  486.786737][T18577] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.786745][T18577] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.786758][T18577] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.786765][T18577] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.786772][T18577] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.786778][T18577] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.786784][T18577] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.786801][T18577]  </TASK>
[  486.824759][T18579] FAULT_INJECTION: forcing a failure.
[  486.824759][T18579] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.824784][T18579] CPU: 0 UID: 0 PID: 18579 Comm: syz.0.6005 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.824798][T18579] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.824805][T18579] Call Trace:
[  486.824810][T18579]  <TASK>
[  486.824815][T18579]  dump_stack_lvl+0x189/0x250
[  486.824832][T18579]  ? __pfx____ratelimit+0x10/0x10
[  486.824850][T18579]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.824862][T18579]  ? __pfx__printk+0x10/0x10
[  486.824876][T18579]  ? __might_fault+0xb0/0x130
[  486.824896][T18579]  should_fail_ex+0x414/0x560
[  486.824914][T18579]  _copy_from_user+0x2d/0xb0
[  486.824939][T18579]  kstrtouint_from_user+0xc4/0x170
[  486.824964][T18579]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.824988][T18579]  proc_fail_nth_write+0x88/0x200
[  486.825003][T18579]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.825021][T18579]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.825037][T18579]  vfs_write+0x27b/0xa90
[  486.825053][T18579]  ? __pfx_vfs_write+0x10/0x10
[  486.825065][T18579]  ? __fget_files+0x2a/0x420
[  486.825079][T18579]  ? __fget_files+0x3a0/0x420
[  486.825090][T18579]  ? __fget_files+0x2a/0x420
[  486.825109][T18579]  ksys_write+0x145/0x250
[  486.825118][T18579]  ? __fget_files+0x3a0/0x420
[  486.825131][T18579]  ? __pfx_ksys_write+0x10/0x10
[  486.825146][T18579]  ? do_syscall_64+0xbe/0x3b0
[  486.825159][T18579]  do_syscall_64+0xfa/0x3b0
[  486.825169][T18579]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.825184][T18579]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.825195][T18579]  ? clear_bhb_loop+0x60/0xb0
[  486.825207][T18579]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.825216][T18579] RIP: 0033:0x7fec16f8d3df
[  486.825226][T18579] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.825236][T18579] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.825249][T18579] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.825256][T18579] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.825262][T18579] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.825267][T18579] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.825274][T18579] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.825292][T18579]  </TASK>
[  486.855867][T18581] FAULT_INJECTION: forcing a failure.
[  486.855867][T18581] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.855894][T18581] CPU: 0 UID: 0 PID: 18581 Comm: syz.0.6006 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.855907][T18581] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.855914][T18581] Call Trace:
[  486.855919][T18581]  <TASK>
[  486.855924][T18581]  dump_stack_lvl+0x189/0x250
[  486.855943][T18581]  ? __pfx____ratelimit+0x10/0x10
[  486.855959][T18581]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.855971][T18581]  ? __pfx__printk+0x10/0x10
[  486.855985][T18581]  ? __might_fault+0xb0/0x130
[  486.856010][T18581]  should_fail_ex+0x414/0x560
[  486.856028][T18581]  _copy_from_user+0x2d/0xb0
[  486.856146][T18581]  kstrtouint_from_user+0xc4/0x170
[  486.856166][T18581]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.856206][T18581]  proc_fail_nth_write+0x88/0x200
[  486.856223][T18581]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.856239][T18581]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.856254][T18581]  vfs_write+0x27b/0xa90
[  486.856273][T18581]  ? __pfx_vfs_write+0x10/0x10
[  486.856286][T18581]  ? __fget_files+0x2a/0x420
[  486.856302][T18581]  ? __fget_files+0x3a0/0x420
[  486.856315][T18581]  ? __fget_files+0x2a/0x420
[  486.856334][T18581]  ksys_write+0x145/0x250
[  486.856345][T18581]  ? __fget_files+0x3a0/0x420
[  486.856357][T18581]  ? __pfx_ksys_write+0x10/0x10
[  486.856371][T18581]  ? do_syscall_64+0xbe/0x3b0
[  486.856384][T18581]  do_syscall_64+0xfa/0x3b0
[  486.856440][T18581]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.856459][T18581]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.856476][T18581]  ? clear_bhb_loop+0x60/0xb0
[  486.856494][T18581]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.856505][T18581] RIP: 0033:0x7fec16f8d3df
[  486.856516][T18581] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.856524][T18581] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.856536][T18581] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.856544][T18581] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.856551][T18581] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.856557][T18581] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.856563][T18581] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.856579][T18581]  </TASK>
[  486.904957][T18583] FAULT_INJECTION: forcing a failure.
[  486.904957][T18583] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.904984][T18583] CPU: 0 UID: 0 PID: 18583 Comm: syz.0.6007 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.904998][T18583] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.905006][T18583] Call Trace:
[  486.905011][T18583]  <TASK>
[  486.905016][T18583]  dump_stack_lvl+0x189/0x250
[  486.905037][T18583]  ? __pfx____ratelimit+0x10/0x10
[  486.905056][T18583]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.905069][T18583]  ? __pfx__printk+0x10/0x10
[  486.905085][T18583]  ? __might_fault+0xb0/0x130
[  486.905107][T18583]  should_fail_ex+0x414/0x560
[  486.905128][T18583]  _copy_from_user+0x2d/0xb0
[  486.905143][T18583]  kstrtouint_from_user+0xc4/0x170
[  486.905165][T18583]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.905194][T18583]  proc_fail_nth_write+0x88/0x200
[  486.905210][T18583]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.905230][T18583]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.905248][T18583]  vfs_write+0x27b/0xa90
[  486.905267][T18583]  ? __pfx_vfs_write+0x10/0x10
[  486.905281][T18583]  ? __fget_files+0x2a/0x420
[  486.905299][T18583]  ? __fget_files+0x3a0/0x420
[  486.905312][T18583]  ? __fget_files+0x2a/0x420
[  486.905332][T18583]  ksys_write+0x145/0x250
[  486.905344][T18583]  ? __fget_files+0x3a0/0x420
[  486.905359][T18583]  ? __pfx_ksys_write+0x10/0x10
[  486.905376][T18583]  ? do_syscall_64+0xbe/0x3b0
[  486.905391][T18583]  do_syscall_64+0xfa/0x3b0
[  486.905401][T18583]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.905417][T18583]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.905429][T18583]  ? clear_bhb_loop+0x60/0xb0
[  486.905443][T18583]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.905453][T18583] RIP: 0033:0x7fec16f8d3df
[  486.905464][T18583] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.905474][T18583] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.905487][T18583] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.905495][T18583] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.905501][T18583] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.905507][T18583] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.905514][T18583] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.905531][T18583]  </TASK>
[  486.930009][T18585] FAULT_INJECTION: forcing a failure.
[  486.930009][T18585] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.930037][T18585] CPU: 0 UID: 0 PID: 18585 Comm: syz.0.6008 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.930049][T18585] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.930057][T18585] Call Trace:
[  486.930063][T18585]  <TASK>
[  486.930069][T18585]  dump_stack_lvl+0x189/0x250
[  486.930087][T18585]  ? __pfx____ratelimit+0x10/0x10
[  486.930104][T18585]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.930117][T18585]  ? __pfx__printk+0x10/0x10
[  486.930131][T18585]  ? __might_fault+0xb0/0x130
[  486.930150][T18585]  should_fail_ex+0x414/0x560
[  486.930168][T18585]  _copy_from_user+0x2d/0xb0
[  486.930181][T18585]  kstrtouint_from_user+0xc4/0x170
[  486.930198][T18585]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.930224][T18585]  proc_fail_nth_write+0x88/0x200
[  486.930241][T18585]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.930259][T18585]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.930274][T18585]  vfs_write+0x27b/0xa90
[  486.930293][T18585]  ? __pfx_vfs_write+0x10/0x10
[  486.930305][T18585]  ? __fget_files+0x2a/0x420
[  486.930320][T18585]  ? __fget_files+0x3a0/0x420
[  486.930331][T18585]  ? __fget_files+0x2a/0x420
[  486.930348][T18585]  ksys_write+0x145/0x250
[  486.930359][T18585]  ? __fget_files+0x3a0/0x420
[  486.930372][T18585]  ? __pfx_ksys_write+0x10/0x10
[  486.930385][T18585]  ? do_syscall_64+0xbe/0x3b0
[  486.930397][T18585]  do_syscall_64+0xfa/0x3b0
[  486.930406][T18585]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.930422][T18585]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.930432][T18585]  ? clear_bhb_loop+0x60/0xb0
[  486.930445][T18585]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.930455][T18585] RIP: 0033:0x7fec16f8d3df
[  486.930465][T18585] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.930474][T18585] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.930486][T18585] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.930494][T18585] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.930500][T18585] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.930507][T18585] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.930514][T18585] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.930533][T18585]  </TASK>
[  486.970870][T18587] FAULT_INJECTION: forcing a failure.
[  486.970870][T18587] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.970896][T18587] CPU: 0 UID: 0 PID: 18587 Comm: syz.0.6009 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.970910][T18587] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.970917][T18587] Call Trace:
[  486.970923][T18587]  <TASK>
[  486.970930][T18587]  dump_stack_lvl+0x189/0x250
[  486.970956][T18587]  ? __pfx____ratelimit+0x10/0x10
[  486.970975][T18587]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.970987][T18587]  ? __pfx__printk+0x10/0x10
[  486.971003][T18587]  ? __might_fault+0xb0/0x130
[  486.971023][T18587]  should_fail_ex+0x414/0x560
[  486.971044][T18587]  _copy_from_user+0x2d/0xb0
[  486.971057][T18587]  kstrtouint_from_user+0xc4/0x170
[  486.971077][T18587]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.971104][T18587]  proc_fail_nth_write+0x88/0x200
[  486.971122][T18587]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.971142][T18587]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.971158][T18587]  vfs_write+0x27b/0xa90
[  486.971179][T18587]  ? __pfx_vfs_write+0x10/0x10
[  486.971192][T18587]  ? __fget_files+0x2a/0x420
[  486.971210][T18587]  ? __fget_files+0x3a0/0x420
[  486.971223][T18587]  ? __fget_files+0x2a/0x420
[  486.971241][T18587]  ksys_write+0x145/0x250
[  486.971253][T18587]  ? __fget_files+0x3a0/0x420
[  486.971266][T18587]  ? __pfx_ksys_write+0x10/0x10
[  486.971282][T18587]  ? do_syscall_64+0xbe/0x3b0
[  486.971296][T18587]  do_syscall_64+0xfa/0x3b0
[  486.971305][T18587]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.971322][T18587]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.971332][T18587]  ? clear_bhb_loop+0x60/0xb0
[  486.971345][T18587]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.971357][T18587] RIP: 0033:0x7fec16f8d3df
[  486.971367][T18587] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.971376][T18587] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.971390][T18587] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.971397][T18587] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.971403][T18587] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.971409][T18587] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.971415][T18587] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.971434][T18587]  </TASK>
[  486.998867][T18589] FAULT_INJECTION: forcing a failure.
[  486.998867][T18589] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  486.998893][T18589] CPU: 0 UID: 0 PID: 18589 Comm: syz.0.6010 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  486.998906][T18589] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  486.998915][T18589] Call Trace:
[  486.998920][T18589]  <TASK>
[  486.998925][T18589]  dump_stack_lvl+0x189/0x250
[  486.998949][T18589]  ? __pfx____ratelimit+0x10/0x10
[  486.998966][T18589]  ? __pfx_dump_stack_lvl+0x10/0x10
[  486.998980][T18589]  ? __pfx__printk+0x10/0x10
[  486.998994][T18589]  ? __might_fault+0xb0/0x130
[  486.999013][T18589]  should_fail_ex+0x414/0x560
[  486.999033][T18589]  _copy_from_user+0x2d/0xb0
[  486.999047][T18589]  kstrtouint_from_user+0xc4/0x170
[  486.999065][T18589]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  486.999090][T18589]  proc_fail_nth_write+0x88/0x200
[  486.999107][T18589]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.999126][T18589]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  486.999143][T18589]  vfs_write+0x27b/0xa90
[  486.999163][T18589]  ? __pfx_vfs_write+0x10/0x10
[  486.999175][T18589]  ? __fget_files+0x2a/0x420
[  486.999191][T18589]  ? __fget_files+0x3a0/0x420
[  486.999203][T18589]  ? __fget_files+0x2a/0x420
[  486.999220][T18589]  ksys_write+0x145/0x250
[  486.999232][T18589]  ? __fget_files+0x3a0/0x420
[  486.999247][T18589]  ? __pfx_ksys_write+0x10/0x10
[  486.999262][T18589]  ? do_syscall_64+0xbe/0x3b0
[  486.999276][T18589]  do_syscall_64+0xfa/0x3b0
[  486.999285][T18589]  ? lockdep_hardirqs_on+0x9c/0x150
[  486.999301][T18589]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.999311][T18589]  ? clear_bhb_loop+0x60/0xb0
[  486.999323][T18589]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  486.999335][T18589] RIP: 0033:0x7fec16f8d3df
[  486.999345][T18589] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  486.999354][T18589] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  486.999368][T18589] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  486.999375][T18589] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  486.999381][T18589] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  486.999387][T18589] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  486.999393][T18589] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  486.999412][T18589]  </TASK>
[  487.036321][T18591] FAULT_INJECTION: forcing a failure.
[  487.036321][T18591] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  487.036348][T18591] CPU: 0 UID: 0 PID: 18591 Comm: syz.0.6011 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  487.036361][T18591] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  487.036368][T18591] Call Trace:
[  487.036374][T18591]  <TASK>
[  487.036379][T18591]  dump_stack_lvl+0x189/0x250
[  487.036434][T18591]  ? __pfx____ratelimit+0x10/0x10
[  487.036452][T18591]  ? __pfx_dump_stack_lvl+0x10/0x10
[  487.036462][T18591]  ? __pfx__printk+0x10/0x10
[  487.036476][T18591]  ? __might_fault+0xb0/0x130
[  487.036496][T18591]  should_fail_ex+0x414/0x560
[  487.036514][T18591]  _copy_from_user+0x2d/0xb0
[  487.036528][T18591]  kstrtouint_from_user+0xc4/0x170
[  487.036544][T18591]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  487.036570][T18591]  proc_fail_nth_write+0x88/0x200
[  487.036586][T18591]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  487.036605][T18591]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  487.036621][T18591]  vfs_write+0x27b/0xa90
[  487.036639][T18591]  ? __pfx_vfs_write+0x10/0x10
[  487.036653][T18591]  ? __fget_files+0x2a/0x420
[  487.036669][T18591]  ? __fget_files+0x3a0/0x420
[  487.036680][T18591]  ? __fget_files+0x2a/0x420
[  487.036699][T18591]  ksys_write+0x145/0x250
[  487.036709][T18591]  ? __fget_files+0x3a0/0x420
[  487.036723][T18591]  ? __pfx_ksys_write+0x10/0x10
[  487.036739][T18591]  ? do_syscall_64+0xbe/0x3b0
[  487.036752][T18591]  do_syscall_64+0xfa/0x3b0
[  487.036760][T18591]  ? lockdep_hardirqs_on+0x9c/0x150
[  487.036776][T18591]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  487.036786][T18591]  ? clear_bhb_loop+0x60/0xb0
[  487.036800][T18591]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  487.036810][T18591] RIP: 0033:0x7fec16f8d3df
[  487.036821][T18591] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  487.036831][T18591] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  487.036844][T18591] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  487.036851][T18591] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  487.036857][T18591] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  487.036863][T18591] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  487.036869][T18591] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  487.036887][T18591]  </TASK>
[  487.075515][T18593] FAULT_INJECTION: forcing a failure.
[  487.075515][T18593] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  487.075542][T18593] CPU: 0 UID: 0 PID: 18593 Comm: syz.0.6012 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  487.075555][T18593] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  487.075563][T18593] Call Trace:
[  487.075568][T18593]  <TASK>
[  487.075573][T18593]  dump_stack_lvl+0x189/0x250
[  487.075592][T18593]  ? __pfx____ratelimit+0x10/0x10
[  487.075608][T18593]  ? __pfx_dump_stack_lvl+0x10/0x10
[  487.075621][T18593]  ? __pfx__printk+0x10/0x10
[  487.075637][T18593]  ? __might_fault+0xb0/0x130
[  487.075654][T18593]  should_fail_ex+0x414/0x560
[  487.075674][T18593]  _copy_from_user+0x2d/0xb0
[  487.075688][T18593]  kstrtouint_from_user+0xc4/0x170
[  487.075715][T18593]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  487.075741][T18593]  proc_fail_nth_write+0x88/0x200
[  487.075759][T18593]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  487.075778][T18593]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  487.075794][T18593]  vfs_write+0x27b/0xa90
[  487.075812][T18593]  ? __pfx_vfs_write+0x10/0x10
[  487.075824][T18593]  ? __fget_files+0x2a/0x420
[  487.075840][T18593]  ? __fget_files+0x3a0/0x420
[  487.075852][T18593]  ? __fget_files+0x2a/0x420
[  487.075869][T18593]  ksys_write+0x145/0x250
[  487.075880][T18593]  ? __fget_files+0x3a0/0x420
[  487.075894][T18593]  ? __pfx_ksys_write+0x10/0x10
[  487.075909][T18593]  ? do_syscall_64+0xbe/0x3b0
[  487.075923][T18593]  do_syscall_64+0xfa/0x3b0
[  487.075933][T18593]  ? lockdep_hardirqs_on+0x9c/0x150
[  487.075948][T18593]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  487.075959][T18593]  ? clear_bhb_loop+0x60/0xb0
[  487.075973][T18593]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  487.075984][T18593] RIP: 0033:0x7fec16f8d3df
[  487.075995][T18593] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  487.076004][T18593] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  487.076018][T18593] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  487.076025][T18593] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  487.076032][T18593] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  487.076037][T18593] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  487.076044][T18593] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  487.076061][T18593]  </TASK>
[  487.104714][T18595] FAULT_INJECTION: forcing a failure.
[  487.104714][T18595] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  487.104743][T18595] CPU: 0 UID: 0 PID: 18595 Comm: syz.0.6013 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  487.104762][T18595] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  487.104770][T18595] Call Trace:
[  487.104776][T18595]  <TASK>
[  487.104782][T18595]  dump_stack_lvl+0x189/0x250
[  487.104803][T18595]  ? __pfx____ratelimit+0x10/0x10
[  487.104821][T18595]  ? __pfx_dump_stack_lvl+0x10/0x10
[  487.104834][T18595]  ? __pfx__printk+0x10/0x10
[  487.104853][T18595]  ? __might_fault+0xb0/0x130
[  487.104876][T18595]  should_fail_ex+0x414/0x560
[  487.104899][T18595]  _copy_from_user+0x2d/0xb0
[  487.104915][T18595]  kstrtouint_from_user+0xc4/0x170
[  487.104937][T18595]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  487.104966][T18595]  proc_fail_nth_write+0x88/0x200
[  487.104986][T18595]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  487.105007][T18595]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  487.105027][T18595]  vfs_write+0x27b/0xa90
[  487.105052][T18595]  ? __pfx_vfs_write+0x10/0x10
[  487.105068][T18595]  ? __fget_files+0x2a/0x420
[  487.105086][T18595]  ? __fget_files+0x3a0/0x420
[  487.105102][T18595]  ? __fget_files+0x2a/0x420
[  487.105122][T18595]  ksys_write+0x145/0x250
[  487.105135][T18595]  ? __fget_files+0x3a0/0x420
[  487.105152][T18595]  ? __pfx_ksys_write+0x10/0x10
[  487.105168][T18595]  ? do_syscall_64+0xbe/0x3b0
[  487.105185][T18595]  do_syscall_64+0xfa/0x3b0
[  487.105196][T18595]  ? lockdep_hardirqs_on+0x9c/0x150
[  487.105214][T18595]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  487.105227][T18595]  ? clear_bhb_loop+0x60/0xb0
[  487.105245][T18595]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  487.105257][T18595] RIP: 0033:0x7fec16f8d3df
[  487.105271][T18595] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  487.105282][T18595] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  487.105295][T18595] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  487.105305][T18595] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  487.105313][T18595] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  487.105320][T18595] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  487.105327][T18595] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  487.105349][T18595]  </TASK>
[  487.151470][T18597] FAULT_INJECTION: forcing a failure.
[  487.151470][T18597] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  487.151498][T18597] CPU: 0 UID: 0 PID: 18597 Comm: syz.0.6014 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  487.151511][T18597] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  487.151518][T18597] Call Trace:
[  487.151523][T18597]  <TASK>
[  487.151528][T18597]  dump_stack_lvl+0x189/0x250
[  487.151547][T18597]  ? __pfx____ratelimit+0x10/0x10
[  487.151565][T18597]  ? __pfx_dump_stack_lvl+0x10/0x10
[  487.151576][T18597]  ? __pfx__printk+0x10/0x10
[  487.151591][T18597]  ? __might_fault+0xb0/0x130
[  487.151610][T18597]  should_fail_ex+0x414/0x560
[  487.151628][T18597]  _copy_from_user+0x2d/0xb0
[  487.151644][T18597]  kstrtouint_from_user+0xc4/0x170
[  487.151662][T18597]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  487.151689][T18597]  proc_fail_nth_write+0x88/0x200
[  487.151716][T18597]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  487.151735][T18597]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  487.151751][T18597]  vfs_write+0x27b/0xa90
[  487.151769][T18597]  ? __pfx_vfs_write+0x10/0x10
[  487.151782][T18597]  ? __fget_files+0x2a/0x420
[  487.151798][T18597]  ? __fget_files+0x3a0/0x420
[  487.151811][T18597]  ? __fget_files+0x2a/0x420
[  487.151830][T18597]  ksys_write+0x145/0x250
[  487.151841][T18597]  ? __fget_files+0x3a0/0x420
[  487.151856][T18597]  ? __pfx_ksys_write+0x10/0x10
[  487.151879][T18597]  ? do_syscall_64+0xbe/0x3b0
[  487.151894][T18597]  do_syscall_64+0xfa/0x3b0
[  487.151905][T18597]  ? lockdep_hardirqs_on+0x9c/0x150
[  487.151922][T18597]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  487.151934][T18597]  ? clear_bhb_loop+0x60/0xb0
[  487.151948][T18597]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  487.151958][T18597] RIP: 0033:0x7fec16f8d3df
[  487.151970][T18597] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  487.151981][T18597] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  487.151994][T18597] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  487.152002][T18597] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  487.152009][T18597] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  487.152016][T18597] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  487.152022][T18597] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  487.152042][T18597]  </TASK>
[  487.189358][T18599] FAULT_INJECTION: forcing a failure.
[  487.189358][T18599] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  487.189383][T18599] CPU: 0 UID: 0 PID: 18599 Comm: syz.0.6015 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  487.189397][T18599] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  487.189404][T18599] Call Trace:
[  487.189410][T18599]  <TASK>
[  487.189416][T18599]  dump_stack_lvl+0x189/0x250
[  487.189436][T18599]  ? __pfx____ratelimit+0x10/0x10
[  487.189454][T18599]  ? __pfx_dump_stack_lvl+0x10/0x10
[  487.189468][T18599]  ? __pfx__printk+0x10/0x10
[  487.189485][T18599]  ? __might_fault+0xb0/0x130
[  487.189508][T18599]  should_fail_ex+0x414/0x560
[  487.189529][T18599]  _copy_from_user+0x2d/0xb0
[  487.189545][T18599]  kstrtouint_from_user+0xc4/0x170
[  487.189565][T18599]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  487.189590][T18599]  proc_fail_nth_write+0x88/0x200
[  487.189608][T18599]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  487.189629][T18599]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  487.189648][T18599]  vfs_write+0x27b/0xa90
[  487.189668][T18599]  ? __pfx_vfs_write+0x10/0x10
[  487.189682][T18599]  ? __fget_files+0x2a/0x420
[  487.189708][T18599]  ? __fget_files+0x3a0/0x420
[  487.189721][T18599]  ? __fget_files+0x2a/0x420
[  487.189742][T18599]  ksys_write+0x145/0x250
[  487.189753][T18599]  ? __fget_files+0x3a0/0x420
[  487.189769][T18599]  ? __pfx_ksys_write+0x10/0x10
[  487.189786][T18599]  ? do_syscall_64+0xbe/0x3b0
[  487.189800][T18599]  do_syscall_64+0xfa/0x3b0
[  487.189811][T18599]  ? lockdep_hardirqs_on+0x9c/0x150
[  487.189828][T18599]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  487.189840][T18599]  ? clear_bhb_loop+0x60/0xb0
[  487.189855][T18599]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  487.189866][T18599] RIP: 0033:0x7fec16f8d3df
[  487.189878][T18599] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  487.189888][T18599] RSP: 002b:00007fec17d19030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  487.189902][T18599] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec16f8d3df
[  487.189909][T18599] RDX: 0000000000000001 RSI: 00007fec17d190a0 RDI: 0000000000000004
[  487.189917][T18599] RBP: 00007fec17d19090 R08: 0000000000000000 R09: 0000000000000000
[  487.189924][T18599] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  487.189932][T18599] R13: 0000000000000000 R14: 00007fec171b5fa0 R15: 00007ffd0cd52b08
[  487.189951][T18599]  </TASK>
[  487.296101][ T4705] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1
[  487.297171][ T4705] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9
[  487.297805][ T4705] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9
[  487.298557][ T4705] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4
[  487.299217][ T4705] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2
[  487.541558][ T1047] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  487.633286][ T1047] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  487.729922][ T1047] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  487.800064][ T1047] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  487.835310][T18601] chnl_net:caif_netlink_parms(): no params data found
[  488.132113][T18601] bridge0: port 1(bridge_slave_0) entered blocking state
[  488.132197][T18601] bridge0: port 1(bridge_slave_0) entered disabled state
[  488.132291][T18601] bridge_slave_0: entered allmulticast mode
[  488.138542][T18601] bridge_slave_0: entered promiscuous mode
[  488.151139][T18601] bridge0: port 2(bridge_slave_1) entered blocking state
[  488.151358][T18601] bridge0: port 2(bridge_slave_1) entered disabled state
[  488.151489][T18601] bridge_slave_1: entered allmulticast mode
[  488.158479][T18601] bridge_slave_1: entered promiscuous mode
[  488.159948][ T1047] bridge_slave_1: left allmulticast mode
[  488.159965][ T1047] bridge_slave_1: left promiscuous mode
[  488.160129][ T1047] bridge0: port 2(bridge_slave_1) entered disabled state
[  488.163779][ T1047] bridge_slave_0: left allmulticast mode
[  488.163797][ T1047] bridge_slave_0: left promiscuous mode
[  488.163936][ T1047] bridge0: port 1(bridge_slave_0) entered disabled state
[  488.861620][ T1047] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[  488.864256][ T1047] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[  488.865499][ T1047] bond0 (unregistering): Released all slaves
[  489.033668][T18601] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[  489.058008][T18601] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[  489.141933][T18601] team0: Port device team_slave_0 added
[  489.221396][T18601] team0: Port device team_slave_1 added
[  489.311743][ T1047] hsr_slave_0: left promiscuous mode
[  489.312434][ T1047] hsr_slave_1: left promiscuous mode
[  489.322722][ T1047] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  489.322748][ T1047] batman_adv: batadv0: Removing interface: batadv_slave_0
[  489.331337][ T1047] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  489.331358][ T1047] batman_adv: batadv0: Removing interface: batadv_slave_1
[  489.342372][ T1047] veth1_macvtap: left promiscuous mode
[  489.342417][ T1047] veth0_macvtap: left promiscuous mode
[  489.342537][ T1047] veth1_vlan: left promiscuous mode
[  489.342609][ T1047] veth0_vlan: left promiscuous mode
[  489.358071][ T4705] Bluetooth: hci1: command tx timeout
[  490.072467][ T1047] team0 (unregistering): Port device team_slave_1 removed
[  490.109737][ T1047] team0 (unregistering): Port device team_slave_0 removed
[  490.646899][T18601] batman_adv: batadv0: Adding interface: batadv_slave_0
[  490.648863][T18601] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem.
[  490.648890][T18601] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[  490.680308][T18601] batman_adv: batadv0: Adding interface: batadv_slave_1
[  490.680324][T18601] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem.
[  490.680341][T18601] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[  490.789393][T18601] hsr_slave_0: entered promiscuous mode
[  490.790239][T18601] hsr_slave_1: entered promiscuous mode
[  491.428558][   T45] Bluetooth: hci1: command tx timeout
[  491.845302][T18601] netdevsim netdevsim0 netdevsim0: renamed from eth0
[  491.858920][T18601] netdevsim netdevsim0 netdevsim1: renamed from eth1
[  491.869572][T18601] netdevsim netdevsim0 netdevsim2: renamed from eth2
[  491.881087][T18601] netdevsim netdevsim0 netdevsim3: renamed from eth3
[  492.161044][T18601] 8021q: adding VLAN 0 to HW filter on device bond0
[  492.211864][T18601] 8021q: adding VLAN 0 to HW filter on device team0
[  492.249082][ T1047] bridge0: port 1(bridge_slave_0) entered blocking state
[  492.249170][ T1047] bridge0: port 1(bridge_slave_0) entered forwarding state
[  492.250676][ T1047] bridge0: port 2(bridge_slave_1) entered blocking state
[  492.250752][ T1047] bridge0: port 2(bridge_slave_1) entered forwarding state
[  492.931091][T18601] 8021q: adding VLAN 0 to HW filter on device batadv0
[  493.075638][T18601] veth0_vlan: entered promiscuous mode
[  493.105349][T18601] veth1_vlan: entered promiscuous mode
[  493.195200][T18601] veth0_macvtap: entered promiscuous mode
[  493.231239][T18601] veth1_macvtap: entered promiscuous mode
[  493.293151][T18601] batman_adv: batadv0: Interface activated: batadv_slave_0
[  493.301420][T18601] batman_adv: batadv0: Interface activated: batadv_slave_1
[  493.350639][ T1152] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[  493.350705][ T1152] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[  493.350730][ T1152] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[  493.350752][ T1152] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[  493.515922][   T45] Bluetooth: hci1: command tx timeout
[  493.530603][ T1152] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[  493.530622][ T1152] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[  493.610614][ T1040] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[  493.610634][ T1040] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[  493.710091][T18660] FAULT_INJECTION: forcing a failure.
[  493.710091][T18660] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  493.710118][T18660] CPU: 0 UID: 0 PID: 18660 Comm: syz.0.6016 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  493.710131][T18660] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  493.710138][T18660] Call Trace:
[  493.710141][T18660]  <TASK>
[  493.710146][T18660]  dump_stack_lvl+0x189/0x250
[  493.710159][T18660]  ? __pfx____ratelimit+0x10/0x10
[  493.710171][T18660]  ? __pfx_dump_stack_lvl+0x10/0x10
[  493.710179][T18660]  ? __pfx__printk+0x10/0x10
[  493.710189][T18660]  ? __might_fault+0xb0/0x130
[  493.710202][T18660]  should_fail_ex+0x414/0x560
[  493.710219][T18660]  _copy_from_user+0x2d/0xb0
[  493.710233][T18660]  kstrtouint_from_user+0xc4/0x170
[  493.710250][T18660]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  493.710275][T18660]  proc_fail_nth_write+0x88/0x200
[  493.710293][T18660]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  493.710313][T18660]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  493.710331][T18660]  vfs_write+0x27b/0xa90
[  493.710349][T18660]  ? __pfx_vfs_write+0x10/0x10
[  493.710362][T18660]  ? __fget_files+0x2a/0x420
[  493.710380][T18660]  ? __fget_files+0x3a0/0x420
[  493.710392][T18660]  ? __fget_files+0x2a/0x420
[  493.710412][T18660]  ksys_write+0x145/0x250
[  493.710422][T18660]  ? __fget_files+0x3a0/0x420
[  493.710436][T18660]  ? __pfx_ksys_write+0x10/0x10
[  493.710450][T18660]  ? do_syscall_64+0xbe/0x3b0
[  493.710464][T18660]  do_syscall_64+0xfa/0x3b0
[  493.710474][T18660]  ? lockdep_hardirqs_on+0x9c/0x150
[  493.710489][T18660]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  493.710500][T18660]  ? clear_bhb_loop+0x60/0xb0
[  493.710513][T18660]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  493.710524][T18660] RIP: 0033:0x7fd62d38d3df
[  493.710535][T18660] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  493.710545][T18660] RSP: 002b:00007fd62e1ac030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  493.710559][T18660] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd62d38d3df
[  493.710567][T18660] RDX: 0000000000000001 RSI: 00007fd62e1ac0a0 RDI: 0000000000000004
[  493.710573][T18660] RBP: 00007fd62e1ac090 R08: 0000000000000000 R09: 0000000000000000
[  493.710581][T18660] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  493.710587][T18660] R13: 0000000000000000 R14: 00007fd62d5b5fa0 R15: 00007fffc86de718
[  493.710603][T18660]  </TASK>
[  493.788759][T18663] FAULT_INJECTION: forcing a failure.
[  493.788759][T18663] name fail_usercopy, interval 1, probability 0, space 0, times 0
[  493.788783][T18663] CPU: 0 UID: 0 PID: 18663 Comm: syz.0.6017 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT(full) 
[  493.788797][T18663] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[  493.788804][T18663] Call Trace:
[  493.788809][T18663]  <TASK>
[  493.788814][T18663]  dump_stack_lvl+0x189/0x250
[  493.788836][T18663]  ? __pfx____ratelimit+0x10/0x10
[  493.788852][T18663]  ? __pfx_dump_stack_lvl+0x10/0x10
[  493.788865][T18663]  ? __pfx__printk+0x10/0x10
[  493.788879][T18663]  ? __might_fault+0xb0/0x130
[  493.788900][T18663]  should_fail_ex+0x414/0x560
[  493.788917][T18663]  _copy_from_user+0x2d/0xb0
[  493.788931][T18663]  kstrtouint_from_user+0xc4/0x170
[  493.788949][T18663]  ? __pfx_kstrtouint_from_user+0x10/0x10
[  493.788975][T18663]  proc_fail_nth_write+0x88/0x200
[  493.788990][T18663]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  493.789008][T18663]  ? __pfx_proc_fail_nth_write+0x10/0x10
[  493.789022][T18663]  vfs_write+0x27b/0xa90
[  493.789039][T18663]  ? __pfx_vfs_write+0x10/0x10
[  493.789052][T18663]  ? __fget_files+0x2a/0x420
[  493.789066][T18663]  ? __fget_files+0x3a0/0x420
[  493.789076][T18663]  ? __fget_files+0x2a/0x420
[  493.789092][T18663]  ksys_write+0x145/0x250
[  493.789103][T18663]  ? __fget_files+0x3a0/0x420
[  493.789117][T18663]  ? __pfx_ksys_write+0x10/0x10
[  493.789131][T18663]  ? do_syscall_64+0xbe/0x3b0
[  493.789144][T18663]  do_syscall_64+0xfa/0x3b0
[  493.789153][T18663]  ? lockdep_hardirqs_on+0x9c/0x150
[  493.789168][T18663]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  493.789178][T18663]  ? clear_bhb_loop+0x60/0xb0
[  493.789192][T18663]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  493.789202][T18663] RIP: 0033:0x7fd62d38d3df
[  493.789214][T18663] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
[  493.789224][T18663] RSP: 002b:00007fd62e1ac030 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  493.789236][T18663] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd62d38d3df
[  493.789242][T18663] RDX: 0000000000000001 RSI: 00007fd62e1ac0a0 RDI: 0000000000000004
[  493.789248][T18663] RBP: 00007fd62e1ac090 R08: 0000000000000000 R09: 0000000000000000
[  493.789255][T18663] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
[  493.789262][T18663] R13: 0000000000000000 R14: 00007fd62d5b5fa0 R15: 00007fffc86de718
[  493.789281][T18663]  </TASK>
[  495.613303][ T1040] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  495.671241][ T1040] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  495.730960][ T1040] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  495.771630][ T1040] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  495.970269][ T1040] bridge_slave_1: left allmulticast mode
[  495.970294][ T1040] bridge_slave_1: left promiscuous mode
[  495.970624][ T1040] bridge0: port 2(bridge_slave_1) entered disabled state
[  495.981101][ T1040] bridge_slave_0: left allmulticast mode
[  495.981124][ T1040] bridge_slave_0: left promiscuous mode
[  495.981299][ T1040] bridge0: port 1(bridge_slave_0) entered disabled state
[  496.686706][ T1040] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[  496.700349][ T1040] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[  496.702309][ T1040] bond0 (unregistering): Released all slaves
[  497.056594][ T1040] hsr_slave_0: left promiscuous mode
[  497.067490][ T1040] hsr_slave_1: left promiscuous mode
[  497.068035][ T1040] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  497.068052][ T1040] batman_adv: batadv0: Removing interface: batadv_slave_0
[  497.068717][ T1040] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  497.068732][ T1040] batman_adv: batadv0: Removing interface: batadv_slave_1
[  497.091319][ T1040] veth1_macvtap: left promiscuous mode
[  497.091384][ T1040] veth0_macvtap: left promiscuous mode
[  497.091510][ T1040] veth1_vlan: left promiscuous mode
[  497.091592][ T1040] veth0_vlan: left promiscuous mode
[  497.820119][ T1040] team0 (unregistering): Port device team_slave_1 removed
[  497.859676][ T1040] team0 (unregistering): Port device team_slave_0 removed
[  506.630265][ T1316] ieee802154 phy0 wpan0: encryption failed: -22
[  506.630326][ T1316] ieee802154 phy1 wpan1: encryption failed: -22