SK>
[  271.966888][ T4557]  dump_stack_lvl+0x168/0x230
[  271.971587][ T4557]  ? show_regs_print_info+0x20/0x20
[  271.976798][ T4557]  ? load_image+0x3b0/0x3b0
[  271.981317][ T4557]  sysfs_create_dir_ns+0x252/0x280
[  271.986437][ T4557]  ? __lock_acquire+0x7c60/0x7c60
[  271.991899][ T4557]  ? sysfs_warn_dup+0xa0/0xa0
[  271.996567][ T4557]  ? do_raw_spin_unlock+0x11d/0x230
[  272.001750][ T4557]  kobject_add_internal+0x662/0xd00
[  272.006950][ T4557]  kobject_init_and_add+0x122/0x190
[  272.012137][ T4557]  ? lockdep_softirqs_off+0x420/0x420
[  272.017506][ T4557]  ? kobject_add+0x210/0x210
[  272.022087][ T4557]  ? __init_swait_queue_head+0xa5/0x150
[  272.027642][ T4557]  gfs2_sys_fs_add+0x234/0x480
[  272.032426][ T4557]  ? gfs2_recover_set+0x240/0x240
[  272.037454][ T4557]  ? snprintf+0xd7/0x120
[  272.041831][ T4557]  ? __free_pages+0x95/0x1a0
[  272.046415][ T4557]  ? vscnprintf+0x80/0x80
[  272.050744][ T4557]  gfs2_fill_super+0x128d/0x1f50
[  272.055674][ T4557]  ? gfs2_reconfigure+0xcd0/0xcd0
[  272.060688][ T4557]  ? preempt_count_add+0x8d/0x190
[  272.065698][ T4557]  ? sb_set_blocksize+0xa5/0xe0
[  272.070532][ T4557]  get_tree_bdev+0x3f1/0x610
[  272.075117][ T4557]  ? gfs2_reconfigure+0xcd0/0xcd0
[  272.080117][ T4557]  gfs2_get_tree+0x4d/0x1e0
[  272.084597][ T4557]  vfs_get_tree+0x88/0x270
[  272.088993][ T4557]  do_new_mount+0x24a/0xa40
[  272.093476][ T4557]  __se_sys_mount+0x2d6/0x3c0
[  272.098132][ T4557]  ? __x64_sys_mount+0xc0/0xc0
[  272.102882][ T4557]  ? lockdep_hardirqs_on+0x94/0x140
[  272.108087][ T4557]  ? __x64_sys_mount+0x1c/0xc0
[  272.112831][ T4557]  do_syscall_64+0x4c/0xa0
[  272.117223][ T4557]  ? clear_bhb_loop+0x30/0x80
[  272.121878][ T4557]  ? clear_bhb_loop+0x30/0x80
[  272.126534][ T4557]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  272.132401][ T4557] RIP: 0033:0x7f2a4ca7feea
[  272.136805][ T4557] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  272.156412][ T4557] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.164991][ T4557] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  272.172973][ T4557] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  272.180941][ T4557] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  272.188917][ T4557] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  272.196873][ T4557] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  272.204835][ T4557]  </TASK>
[  272.209593][ T4557] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  272.222753][ T4557] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  272.522591][ T4558] loop1: detected capacity change from 0 to 32768
[  272.586521][ T4558] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.594041][ T4558] CPU: 0 PID: 4558 Comm: syz.1.181 Not tainted syzkaller #0
[  272.601350][ T4558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  272.611410][ T4558] Call Trace:
[  272.614696][ T4558]  <TASK>
[  272.617634][ T4558]  dump_stack_lvl+0x168/0x230
[  272.622324][ T4558]  ? show_regs_print_info+0x20/0x20
[  272.627528][ T4558]  ? load_image+0x3b0/0x3b0
[  272.632053][ T4558]  sysfs_create_dir_ns+0x252/0x280
[  272.637187][ T4558]  ? __lock_acquire+0x7c60/0x7c60
[  272.642220][ T4558]  ? sysfs_warn_dup+0xa0/0xa0
[  272.646911][ T4558]  ? do_raw_spin_unlock+0x11d/0x230
[  272.652119][ T4558]  kobject_add_internal+0x662/0xd00
[  272.657338][ T4558]  kobject_init_and_add+0x122/0x190
[  272.662546][ T4558]  ? lockdep_softirqs_off+0x420/0x420
[  272.668017][ T4558]  ? kobject_add+0x210/0x210
[  272.672613][ T4558]  ? __init_swait_queue_head+0xa5/0x150
[  272.678149][ T4558]  gfs2_sys_fs_add+0x234/0x480
[  272.682921][ T4558]  ? gfs2_recover_set+0x240/0x240
[  272.687943][ T4558]  ? snprintf+0xd7/0x120
[  272.692177][ T4558]  ? __free_pages+0x95/0x1a0
[  272.696761][ T4558]  ? vscnprintf+0x80/0x80
[  272.701084][ T4558]  gfs2_fill_super+0x128d/0x1f50
[  272.706023][ T4558]  ? gfs2_reconfigure+0xcd0/0xcd0
[  272.711034][ T4558]  ? preempt_count_add+0x8d/0x190
[  272.716052][ T4558]  ? sb_set_blocksize+0xa5/0xe0
[  272.720899][ T4558]  get_tree_bdev+0x3f1/0x610
[  272.725487][ T4558]  ? gfs2_reconfigure+0xcd0/0xcd0
[  272.730501][ T4558]  gfs2_get_tree+0x4d/0x1e0
[  272.735027][ T4558]  vfs_get_tree+0x88/0x270
[  272.739439][ T4558]  do_new_mount+0x24a/0xa40
[  272.743940][ T4558]  __se_sys_mount+0x2d6/0x3c0
[  272.748609][ T4558]  ? __x64_sys_mount+0xc0/0xc0
[  272.753358][ T4558]  ? lockdep_hardirqs_on+0x94/0x140
[  272.758547][ T4558]  ? __x64_sys_mount+0x1c/0xc0
[  272.763297][ T4558]  do_syscall_64+0x4c/0xa0
[  272.767698][ T4558]  ? clear_bhb_loop+0x30/0x80
[  272.772360][ T4558]  ? clear_bhb_loop+0x30/0x80
[  272.777396][ T4558]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  272.783532][ T4558] RIP: 0033:0x7f2a4ca7feea
[  272.788017][ T4558] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  272.807606][ T4558] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.816094][ T4558] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  272.824148][ T4558] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  272.832106][ T4558] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  272.840057][ T4558] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  272.848009][ T4558] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  272.856060][ T4558]  </TASK>
[  272.859624][ T4558] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  272.872886][ T4558] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  273.195782][ T4559] loop1: detected capacity change from 0 to 32768
[  273.238426][ T4559] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  273.249198][ T4559] CPU: 1 PID: 4559 Comm: syz.1.182 Not tainted syzkaller #0
[  273.256507][ T4559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  273.266569][ T4559] Call Trace:
[  273.269860][ T4559]  <TASK>
[  273.272791][ T4559]  dump_stack_lvl+0x168/0x230
[  273.277478][ T4559]  ? show_regs_print_info+0x20/0x20
[  273.282691][ T4559]  ? load_image+0x3b0/0x3b0
[  273.287213][ T4559]  sysfs_create_dir_ns+0x252/0x280
[  273.292435][ T4559]  ? __lock_acquire+0x7c60/0x7c60
[  273.297470][ T4559]  ? sysfs_warn_dup+0xa0/0xa0
[  273.302160][ T4559]  ? do_raw_spin_unlock+0x11d/0x230
[  273.307364][ T4559]  kobject_add_internal+0x662/0xd00
[  273.312573][ T4559]  kobject_init_and_add+0x122/0x190
[  273.317785][ T4559]  ? lockdep_softirqs_off+0x420/0x420
[  273.323171][ T4559]  ? kobject_add+0x210/0x210
[  273.327771][ T4559]  ? __init_swait_queue_head+0xa5/0x150
[  273.333371][ T4559]  gfs2_sys_fs_add+0x234/0x480
[  273.338128][ T4559]  ? gfs2_recover_set+0x240/0x240
[  273.343136][ T4559]  ? snprintf+0xd7/0x120
[  273.347362][ T4559]  ? __free_pages+0x95/0x1a0
[  273.351945][ T4559]  ? vscnprintf+0x80/0x80
[  273.356288][ T4559]  gfs2_fill_super+0x128d/0x1f50
[  273.361354][ T4559]  ? gfs2_reconfigure+0xcd0/0xcd0
[  273.366389][ T4559]  ? preempt_count_add+0x8d/0x190
[  273.371436][ T4559]  ? sb_set_blocksize+0xa5/0xe0
[  273.376293][ T4559]  get_tree_bdev+0x3f1/0x610
[  273.380868][ T4559]  ? gfs2_reconfigure+0xcd0/0xcd0
[  273.385878][ T4559]  gfs2_get_tree+0x4d/0x1e0
[  273.390363][ T4559]  vfs_get_tree+0x88/0x270
[  273.394761][ T4559]  do_new_mount+0x24a/0xa40
[  273.399246][ T4559]  __se_sys_mount+0x2d6/0x3c0
[  273.403901][ T4559]  ? __x64_sys_mount+0xc0/0xc0
[  273.408646][ T4559]  ? lockdep_hardirqs_on+0x94/0x140
[  273.413954][ T4559]  ? __x64_sys_mount+0x1c/0xc0
[  273.418714][ T4559]  do_syscall_64+0x4c/0xa0
[  273.423117][ T4559]  ? clear_bhb_loop+0x30/0x80
[  273.427774][ T4559]  ? clear_bhb_loop+0x30/0x80
[  273.432437][ T4559]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  273.438335][ T4559] RIP: 0033:0x7f2a4ca7feea
[  273.442738][ T4559] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  273.462332][ T4559] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  273.470727][ T4559] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  273.478676][ T4559] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  273.486627][ T4559] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  273.494584][ T4559] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  273.502548][ T4559] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  273.510639][ T4559]  </TASK>
[  273.515420][ T4559] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  273.528587][ T4559] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  273.831559][ T4560] loop1: detected capacity change from 0 to 32768
[  273.935310][ T4560] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  273.945594][ T4560] CPU: 1 PID: 4560 Comm: syz.1.183 Not tainted syzkaller #0
[  273.952903][ T4560] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  273.962973][ T4560] Call Trace:
[  273.966256][ T4560]  <TASK>
[  273.969186][ T4560]  dump_stack_lvl+0x168/0x230
[  273.973871][ T4560]  ? show_regs_print_info+0x20/0x20
[  273.979074][ T4560]  ? load_image+0x3b0/0x3b0
[  273.983584][ T4560]  sysfs_create_dir_ns+0x252/0x280
[  273.988684][ T4560]  ? __lock_acquire+0x7c60/0x7c60
[  273.993688][ T4560]  ? sysfs_warn_dup+0xa0/0xa0
[  273.998365][ T4560]  ? do_raw_spin_unlock+0x11d/0x230
[  274.003544][ T4560]  kobject_add_internal+0x662/0xd00
[  274.008903][ T4560]  kobject_init_and_add+0x122/0x190
[  274.014079][ T4560]  ? lockdep_softirqs_off+0x420/0x420
[  274.019452][ T4560]  ? kobject_add+0x210/0x210
[  274.024041][ T4560]  ? __init_swait_queue_head+0xa5/0x150
[  274.029575][ T4560]  gfs2_sys_fs_add+0x234/0x480
[  274.034368][ T4560]  ? gfs2_recover_set+0x240/0x240
[  274.039373][ T4560]  ? snprintf+0xd7/0x120
[  274.043596][ T4560]  ? __free_pages+0x95/0x1a0
[  274.048172][ T4560]  ? vscnprintf+0x80/0x80
[  274.052488][ T4560]  gfs2_fill_super+0x128d/0x1f50
[  274.057419][ T4560]  ? gfs2_reconfigure+0xcd0/0xcd0
[  274.062421][ T4560]  ? preempt_count_add+0x8d/0x190
[  274.067429][ T4560]  ? sb_set_blocksize+0xa5/0xe0
[  274.072263][ T4560]  get_tree_bdev+0x3f1/0x610
[  274.076833][ T4560]  ? gfs2_reconfigure+0xcd0/0xcd0
[  274.081848][ T4560]  gfs2_get_tree+0x4d/0x1e0
[  274.086344][ T4560]  vfs_get_tree+0x88/0x270
[  274.090741][ T4560]  do_new_mount+0x24a/0xa40
[  274.095224][ T4560]  __se_sys_mount+0x2d6/0x3c0
[  274.099880][ T4560]  ? __x64_sys_mount+0xc0/0xc0
[  274.104626][ T4560]  ? lockdep_hardirqs_on+0x94/0x140
[  274.109925][ T4560]  ? __x64_sys_mount+0x1c/0xc0
[  274.114673][ T4560]  do_syscall_64+0x4c/0xa0
[  274.119067][ T4560]  ? clear_bhb_loop+0x30/0x80
[  274.123720][ T4560]  ? clear_bhb_loop+0x30/0x80
[  274.128374][ T4560]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  274.134242][ T4560] RIP: 0033:0x7f2a4ca7feea
[  274.138636][ T4560] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  274.158304][ T4560] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  274.166800][ T4560] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  274.174752][ T4560] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  274.182706][ T4560] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  274.190661][ T4560] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  274.198610][ T4560] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  274.206570][ T4560]  </TASK>
[  274.211787][ T4560] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  274.225076][ T4560] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  274.565216][ T4561] loop1: detected capacity change from 0 to 32768
[  274.582790][ T4561] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  274.590187][ T4561] CPU: 0 PID: 4561 Comm: syz.1.184 Not tainted syzkaller #0
[  274.597477][ T4561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  274.607542][ T4561] Call Trace:
[  274.610826][ T4561]  <TASK>
[  274.613756][ T4561]  dump_stack_lvl+0x168/0x230
[  274.618439][ T4561]  ? show_regs_print_info+0x20/0x20
[  274.623641][ T4561]  ? load_image+0x3b0/0x3b0
[  274.628160][ T4561]  sysfs_create_dir_ns+0x252/0x280
[  274.633282][ T4561]  ? __lock_acquire+0x7c60/0x7c60
[  274.638313][ T4561]  ? sysfs_warn_dup+0xa0/0xa0
[  274.643002][ T4561]  ? do_raw_spin_unlock+0x11d/0x230
[  274.648210][ T4561]  kobject_add_internal+0x662/0xd00
[  274.653423][ T4561]  kobject_init_and_add+0x122/0x190
[  274.658627][ T4561]  ? lockdep_softirqs_off+0x420/0x420
[  274.664003][ T4561]  ? kobject_add+0x210/0x210
[  274.668584][ T4561]  ? __init_swait_queue_head+0xa5/0x150
[  274.674115][ T4561]  gfs2_sys_fs_add+0x234/0x480
[  274.678861][ T4561]  ? gfs2_recover_set+0x240/0x240
[  274.683861][ T4561]  ? snprintf+0xd7/0x120
[  274.688083][ T4561]  ? __free_pages+0x95/0x1a0
[  274.692654][ T4561]  ? vscnprintf+0x80/0x80
[  274.696972][ T4561]  gfs2_fill_super+0x128d/0x1f50
[  274.701910][ T4561]  ? gfs2_reconfigure+0xcd0/0xcd0
[  274.706915][ T4561]  ? preempt_count_add+0x8d/0x190
[  274.711936][ T4561]  ? sb_set_blocksize+0xa5/0xe0
[  274.716924][ T4561]  get_tree_bdev+0x3f1/0x610
[  274.721507][ T4561]  ? gfs2_reconfigure+0xcd0/0xcd0
[  274.726516][ T4561]  gfs2_get_tree+0x4d/0x1e0
[  274.731008][ T4561]  vfs_get_tree+0x88/0x270
[  274.735420][ T4561]  do_new_mount+0x24a/0xa40
[  274.739911][ T4561]  __se_sys_mount+0x2d6/0x3c0
[  274.744571][ T4561]  ? __x64_sys_mount+0xc0/0xc0
[  274.749315][ T4561]  ? lockdep_hardirqs_on+0x94/0x140
[  274.754495][ T4561]  ? __x64_sys_mount+0x1c/0xc0
[  274.759242][ T4561]  do_syscall_64+0x4c/0xa0
[  274.763638][ T4561]  ? clear_bhb_loop+0x30/0x80
[  274.768293][ T4561]  ? clear_bhb_loop+0x30/0x80
[  274.772964][ T4561]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  274.778852][ T4561] RIP: 0033:0x7f2a4ca7feea
[  274.783261][ T4561] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  274.802856][ T4561] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  274.811261][ T4561] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  274.819233][ T4561] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  274.827189][ T4561] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  274.835145][ T4561] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  274.843100][ T4561] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  274.851070][ T4561]  </TASK>
[  274.854574][ T4561] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  274.867854][ T4561] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  275.187070][ T4562] loop1: detected capacity change from 0 to 32768
[  275.249787][ T4562] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  275.257296][ T4562] CPU: 0 PID: 4562 Comm: syz.1.185 Not tainted syzkaller #0
[  275.264590][ T4562] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  275.274652][ T4562] Call Trace:
[  275.277933][ T4562]  <TASK>
[  275.280866][ T4562]  dump_stack_lvl+0x168/0x230
[  275.285559][ T4562]  ? show_regs_print_info+0x20/0x20
[  275.290770][ T4562]  ? load_image+0x3b0/0x3b0
[  275.295294][ T4562]  sysfs_create_dir_ns+0x252/0x280
[  275.300414][ T4562]  ? __lock_acquire+0x7c60/0x7c60
[  275.305441][ T4562]  ? sysfs_warn_dup+0xa0/0xa0
[  275.310132][ T4562]  ? do_raw_spin_unlock+0x11d/0x230
[  275.315345][ T4562]  kobject_add_internal+0x662/0xd00
[  275.320555][ T4562]  kobject_init_and_add+0x122/0x190
[  275.325762][ T4562]  ? lockdep_softirqs_off+0x420/0x420
[  275.331229][ T4562]  ? kobject_add+0x210/0x210
[  275.335808][ T4562]  ? __init_swait_queue_head+0xa5/0x150
[  275.341346][ T4562]  gfs2_sys_fs_add+0x234/0x480
[  275.346090][ T4562]  ? gfs2_recover_set+0x240/0x240
[  275.351096][ T4562]  ? snprintf+0xd7/0x120
[  275.355315][ T4562]  ? __free_pages+0x95/0x1a0
[  275.359882][ T4562]  ? vscnprintf+0x80/0x80
[  275.364192][ T4562]  gfs2_fill_super+0x128d/0x1f50
[  275.369115][ T4562]  ? gfs2_reconfigure+0xcd0/0xcd0
[  275.374117][ T4562]  ? preempt_count_add+0x8d/0x190
[  275.379124][ T4562]  ? sb_set_blocksize+0xa5/0xe0
[  275.383955][ T4562]  get_tree_bdev+0x3f1/0x610
[  275.388525][ T4562]  ? gfs2_reconfigure+0xcd0/0xcd0
[  275.393527][ T4562]  gfs2_get_tree+0x4d/0x1e0
[  275.398012][ T4562]  vfs_get_tree+0x88/0x270
[  275.402409][ T4562]  do_new_mount+0x24a/0xa40
[  275.406893][ T4562]  __se_sys_mount+0x2d6/0x3c0
[  275.411558][ T4562]  ? __x64_sys_mount+0xc0/0xc0
[  275.416317][ T4562]  ? lockdep_hardirqs_on+0x94/0x140
[  275.421491][ T4562]  ? __x64_sys_mount+0x1c/0xc0
[  275.426238][ T4562]  do_syscall_64+0x4c/0xa0
[  275.430632][ T4562]  ? clear_bhb_loop+0x30/0x80
[  275.435288][ T4562]  ? clear_bhb_loop+0x30/0x80
[  275.439948][ T4562]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  275.445826][ T4562] RIP: 0033:0x7f2a4ca7feea
[  275.450220][ T4562] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  275.469814][ T4562] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  275.478216][ T4562] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  275.486194][ T4562] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  275.494144][ T4562] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  275.502092][ T4562] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  275.510050][ T4562] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  275.518010][ T4562]  </TASK>
[  275.528818][ T4562] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  275.542329][ T4562] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/06 05:51:21 executed programs: 171
[  275.847046][ T4563] loop1: detected capacity change from 0 to 32768
[  275.895865][ T4563] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  275.908453][ T4563] CPU: 0 PID: 4563 Comm: syz.1.186 Not tainted syzkaller #0
[  275.915760][ T4563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  275.925818][ T4563] Call Trace:
[  275.929105][ T4563]  <TASK>
[  275.932039][ T4563]  dump_stack_lvl+0x168/0x230
[  275.936727][ T4563]  ? show_regs_print_info+0x20/0x20
[  275.941930][ T4563]  ? load_image+0x3b0/0x3b0
[  275.946450][ T4563]  sysfs_create_dir_ns+0x252/0x280
[  275.951572][ T4563]  ? __lock_acquire+0x7c60/0x7c60
[  275.956615][ T4563]  ? sysfs_warn_dup+0xa0/0xa0
[  275.961306][ T4563]  ? do_raw_spin_unlock+0x11d/0x230
[  275.966512][ T4563]  kobject_add_internal+0x662/0xd00
[  275.971729][ T4563]  kobject_init_and_add+0x122/0x190
[  275.976939][ T4563]  ? lockdep_softirqs_off+0x420/0x420
[  275.982317][ T4563]  ? kobject_add+0x210/0x210
[  275.986918][ T4563]  ? __init_swait_queue_head+0xa5/0x150
[  275.992474][ T4563]  gfs2_sys_fs_add+0x234/0x480
[  275.997235][ T4563]  ? gfs2_recover_set+0x240/0x240
[  276.002253][ T4563]  ? snprintf+0xd7/0x120
[  276.006496][ T4563]  ? __free_pages+0x95/0x1a0
[  276.011077][ T4563]  ? vscnprintf+0x80/0x80
[  276.015410][ T4563]  gfs2_fill_super+0x128d/0x1f50
[  276.020343][ T4563]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.025360][ T4563]  ? preempt_count_add+0x8d/0x190
[  276.030392][ T4563]  ? sb_set_blocksize+0xa5/0xe0
[  276.035237][ T4563]  get_tree_bdev+0x3f1/0x610
[  276.039823][ T4563]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.044840][ T4563]  gfs2_get_tree+0x4d/0x1e0
[  276.049349][ T4563]  vfs_get_tree+0x88/0x270
[  276.053755][ T4563]  do_new_mount+0x24a/0xa40
[  276.058244][ T4563]  __se_sys_mount+0x2d6/0x3c0
[  276.062947][ T4563]  ? __x64_sys_mount+0xc0/0xc0
[  276.067732][ T4563]  ? lockdep_hardirqs_on+0x94/0x140
[  276.072934][ T4563]  ? __x64_sys_mount+0x1c/0xc0
[  276.077682][ T4563]  do_syscall_64+0x4c/0xa0
[  276.082084][ T4563]  ? clear_bhb_loop+0x30/0x80
[  276.086773][ T4563]  ? clear_bhb_loop+0x30/0x80
[  276.091430][ T4563]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  276.097303][ T4563] RIP: 0033:0x7f2a4ca7feea
[  276.101703][ T4563] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  276.121572][ T4563] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.130022][ T4563] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  276.137978][ T4563] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  276.145935][ T4563] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  276.154006][ T4563] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  276.161979][ T4563] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  276.169979][ T4563]  </TASK>
[  276.176433][ T4563] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  276.189815][ T4563] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  276.520874][ T4564] loop1: detected capacity change from 0 to 32768
[  276.570106][ T4564] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  276.577580][ T4564] CPU: 0 PID: 4564 Comm: syz.1.187 Not tainted syzkaller #0
[  276.584878][ T4564] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  276.594937][ T4564] Call Trace:
[  276.598225][ T4564]  <TASK>
[  276.601156][ T4564]  dump_stack_lvl+0x168/0x230
[  276.605850][ T4564]  ? show_regs_print_info+0x20/0x20
[  276.611059][ T4564]  ? load_image+0x3b0/0x3b0
[  276.615588][ T4564]  sysfs_create_dir_ns+0x252/0x280
[  276.620711][ T4564]  ? __lock_acquire+0x7c60/0x7c60
[  276.625745][ T4564]  ? sysfs_warn_dup+0xa0/0xa0
[  276.630438][ T4564]  ? do_raw_spin_unlock+0x11d/0x230
[  276.635650][ T4564]  kobject_add_internal+0x662/0xd00
[  276.640864][ T4564]  kobject_init_and_add+0x122/0x190
[  276.646061][ T4564]  ? lockdep_softirqs_off+0x420/0x420
[  276.651566][ T4564]  ? kobject_add+0x210/0x210
[  276.656173][ T4564]  ? __init_swait_queue_head+0xa5/0x150
[  276.661704][ T4564]  gfs2_sys_fs_add+0x234/0x480
[  276.666472][ T4564]  ? gfs2_recover_set+0x240/0x240
[  276.671486][ T4564]  ? snprintf+0xd7/0x120
[  276.675712][ T4564]  ? __free_pages+0x95/0x1a0
[  276.680287][ T4564]  ? vscnprintf+0x80/0x80
[  276.684608][ T4564]  gfs2_fill_super+0x128d/0x1f50
[  276.689549][ T4564]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.694560][ T4564]  ? preempt_count_add+0x8d/0x190
[  276.699586][ T4564]  ? sb_set_blocksize+0xa5/0xe0
[  276.704425][ T4564]  get_tree_bdev+0x3f1/0x610
[  276.708997][ T4564]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.714004][ T4564]  gfs2_get_tree+0x4d/0x1e0
[  276.718490][ T4564]  vfs_get_tree+0x88/0x270
[  276.722892][ T4564]  do_new_mount+0x24a/0xa40
[  276.727374][ T4564]  __se_sys_mount+0x2d6/0x3c0
[  276.732042][ T4564]  ? __x64_sys_mount+0xc0/0xc0
[  276.736803][ T4564]  ? lockdep_hardirqs_on+0x94/0x140
[  276.741981][ T4564]  ? __x64_sys_mount+0x1c/0xc0
[  276.746725][ T4564]  do_syscall_64+0x4c/0xa0
[  276.751119][ T4564]  ? clear_bhb_loop+0x30/0x80
[  276.755803][ T4564]  ? clear_bhb_loop+0x30/0x80
[  276.760457][ T4564]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  276.766325][ T4564] RIP: 0033:0x7f2a4ca7feea
[  276.770726][ T4564] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  276.790406][ T4564] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.798801][ T4564] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  276.806753][ T4564] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  276.814701][ T4564] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  276.822681][ T4564] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  276.830636][ T4564] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  276.838621][ T4564]  </TASK>
[  276.845795][ T4564] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  276.860239][ T4564] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  277.162653][ T4565] loop1: detected capacity change from 0 to 32768
[  277.243111][ T4565] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  277.250954][ T4565] CPU: 1 PID: 4565 Comm: syz.1.188 Not tainted syzkaller #0
[  277.258351][ T4565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  277.268410][ T4565] Call Trace:
[  277.271692][ T4565]  <TASK>
[  277.274624][ T4565]  dump_stack_lvl+0x168/0x230
[  277.279328][ T4565]  ? show_regs_print_info+0x20/0x20
[  277.284538][ T4565]  ? load_image+0x3b0/0x3b0
[  277.289070][ T4565]  sysfs_create_dir_ns+0x252/0x280
[  277.294194][ T4565]  ? __lock_acquire+0x7c60/0x7c60
[  277.299225][ T4565]  ? sysfs_warn_dup+0xa0/0xa0
[  277.303909][ T4565]  ? do_raw_spin_unlock+0x11d/0x230
[  277.309092][ T4565]  kobject_add_internal+0x662/0xd00
[  277.314271][ T4565]  kobject_init_and_add+0x122/0x190
[  277.319447][ T4565]  ? lockdep_softirqs_off+0x420/0x420
[  277.324796][ T4565]  ? kobject_add+0x210/0x210
[  277.329366][ T4565]  ? __init_swait_queue_head+0xa5/0x150
[  277.334892][ T4565]  gfs2_sys_fs_add+0x234/0x480
[  277.339640][ T4565]  ? gfs2_recover_set+0x240/0x240
[  277.344645][ T4565]  ? snprintf+0xd7/0x120
[  277.348870][ T4565]  ? __free_pages+0x95/0x1a0
[  277.353440][ T4565]  ? vscnprintf+0x80/0x80
[  277.357757][ T4565]  gfs2_fill_super+0x128d/0x1f50
[  277.362679][ T4565]  ? gfs2_reconfigure+0xcd0/0xcd0
[  277.367683][ T4565]  ? preempt_count_add+0x8d/0x190
[  277.372688][ T4565]  ? sb_set_blocksize+0xa5/0xe0
[  277.377542][ T4565]  get_tree_bdev+0x3f1/0x610
[  277.382112][ T4565]  ? gfs2_reconfigure+0xcd0/0xcd0
[  277.387121][ T4565]  gfs2_get_tree+0x4d/0x1e0
[  277.391606][ T4565]  vfs_get_tree+0x88/0x270
[  277.396003][ T4565]  do_new_mount+0x24a/0xa40
[  277.400487][ T4565]  __se_sys_mount+0x2d6/0x3c0
[  277.405153][ T4565]  ? __x64_sys_mount+0xc0/0xc0
[  277.409899][ T4565]  ? lockdep_hardirqs_on+0x94/0x140
[  277.415072][ T4565]  ? __x64_sys_mount+0x1c/0xc0
[  277.419814][ T4565]  do_syscall_64+0x4c/0xa0
[  277.424206][ T4565]  ? clear_bhb_loop+0x30/0x80
[  277.428861][ T4565]  ? clear_bhb_loop+0x30/0x80
[  277.433516][ T4565]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  277.439387][ T4565] RIP: 0033:0x7f2a4ca7feea
[  277.443782][ T4565] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  277.463548][ T4565] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  277.471949][ T4565] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  277.480102][ T4565] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  277.488072][ T4565] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  277.496036][ T4565] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  277.503993][ T4565] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  277.512154][ T4565]  </TASK>
[  277.517351][ T4565] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  277.530520][ T4565] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  277.853407][ T4566] loop1: detected capacity change from 0 to 32768
[  277.909676][ T4566] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  277.917194][ T4566] CPU: 0 PID: 4566 Comm: syz.1.189 Not tainted syzkaller #0
[  277.924493][ T4566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  277.934554][ T4566] Call Trace:
[  277.937846][ T4566]  <TASK>
[  277.940782][ T4566]  dump_stack_lvl+0x168/0x230
[  277.945471][ T4566]  ? show_regs_print_info+0x20/0x20
[  277.950689][ T4566]  ? load_image+0x3b0/0x3b0
[  277.955210][ T4566]  sysfs_create_dir_ns+0x252/0x280
[  277.960328][ T4566]  ? __lock_acquire+0x7c60/0x7c60
[  277.965361][ T4566]  ? sysfs_warn_dup+0xa0/0xa0
[  277.970050][ T4566]  ? do_raw_spin_unlock+0x11d/0x230
[  277.975257][ T4566]  kobject_add_internal+0x662/0xd00
[  277.980482][ T4566]  kobject_init_and_add+0x122/0x190
[  277.985697][ T4566]  ? lockdep_softirqs_off+0x420/0x420
[  277.991077][ T4566]  ? kobject_add+0x210/0x210
[  277.995657][ T4566]  ? __init_swait_queue_head+0xa5/0x150
[  278.001191][ T4566]  gfs2_sys_fs_add+0x234/0x480
[  278.005940][ T4566]  ? gfs2_recover_set+0x240/0x240
[  278.010944][ T4566]  ? snprintf+0xd7/0x120
[  278.015177][ T4566]  ? __free_pages+0x95/0x1a0
[  278.019748][ T4566]  ? vscnprintf+0x80/0x80
[  278.024070][ T4566]  gfs2_fill_super+0x128d/0x1f50
[  278.028998][ T4566]  ? gfs2_reconfigure+0xcd0/0xcd0
[  278.034004][ T4566]  ? preempt_count_add+0x8d/0x190
[  278.039018][ T4566]  ? sb_set_blocksize+0xa5/0xe0
[  278.043847][ T4566]  get_tree_bdev+0x3f1/0x610
[  278.048422][ T4566]  ? gfs2_reconfigure+0xcd0/0xcd0
[  278.053430][ T4566]  gfs2_get_tree+0x4d/0x1e0
[  278.057918][ T4566]  vfs_get_tree+0x88/0x270
[  278.062316][ T4566]  do_new_mount+0x24a/0xa40
[  278.066800][ T4566]  __se_sys_mount+0x2d6/0x3c0
[  278.071465][ T4566]  ? __x64_sys_mount+0xc0/0xc0
[  278.076228][ T4566]  ? lockdep_hardirqs_on+0x94/0x140
[  278.081403][ T4566]  ? __x64_sys_mount+0x1c/0xc0
[  278.086150][ T4566]  do_syscall_64+0x4c/0xa0
[  278.090545][ T4566]  ? clear_bhb_loop+0x30/0x80
[  278.095205][ T4566]  ? clear_bhb_loop+0x30/0x80
[  278.100059][ T4566]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  278.105937][ T4566] RIP: 0033:0x7f2a4ca7feea
[  278.110332][ T4566] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  278.129918][ T4566] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  278.138314][ T4566] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  278.146300][ T4566] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  278.154257][ T4566] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  278.162217][ T4566] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  278.170164][ T4566] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  278.178127][ T4566]  </TASK>
[  278.182002][ T4566] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  278.195273][ T4566] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  278.509237][ T4567] loop1: detected capacity change from 0 to 32768
[  278.548839][ T4567] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  278.560345][ T4567] CPU: 0 PID: 4567 Comm: syz.1.190 Not tainted syzkaller #0
[  278.567664][ T4567] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  278.577902][ T4567] Call Trace:
[  278.581199][ T4567]  <TASK>
[  278.584130][ T4567]  dump_stack_lvl+0x168/0x230
[  278.588818][ T4567]  ? show_regs_print_info+0x20/0x20
[  278.594060][ T4567]  ? load_image+0x3b0/0x3b0
[  278.598583][ T4567]  sysfs_create_dir_ns+0x252/0x280
[  278.603710][ T4567]  ? __lock_acquire+0x7c60/0x7c60
[  278.608752][ T4567]  ? sysfs_warn_dup+0xa0/0xa0
[  278.613448][ T4567]  ? do_raw_spin_unlock+0x11d/0x230
[  278.618662][ T4567]  kobject_add_internal+0x662/0xd00
[  278.623873][ T4567]  kobject_init_and_add+0x122/0x190
[  278.629083][ T4567]  ? lockdep_softirqs_off+0x420/0x420
[  278.634464][ T4567]  ? kobject_add+0x210/0x210
[  278.639129][ T4567]  ? __init_swait_queue_head+0xa5/0x150
[  278.644665][ T4567]  gfs2_sys_fs_add+0x234/0x480
[  278.649413][ T4567]  ? gfs2_recover_set+0x240/0x240
[  278.654419][ T4567]  ? snprintf+0xd7/0x120
[  278.658639][ T4567]  ? __free_pages+0x95/0x1a0
[  278.663212][ T4567]  ? vscnprintf+0x80/0x80
[  278.667529][ T4567]  gfs2_fill_super+0x128d/0x1f50
[  278.672454][ T4567]  ? gfs2_reconfigure+0xcd0/0xcd0
[  278.677472][ T4567]  ? preempt_count_add+0x8d/0x190
[  278.682491][ T4567]  ? sb_set_blocksize+0xa5/0xe0
[  278.687338][ T4567]  get_tree_bdev+0x3f1/0x610
[  278.691916][ T4567]  ? gfs2_reconfigure+0xcd0/0xcd0
[  278.696920][ T4567]  gfs2_get_tree+0x4d/0x1e0
[  278.701409][ T4567]  vfs_get_tree+0x88/0x270
[  278.705824][ T4567]  do_new_mount+0x24a/0xa40
[  278.710315][ T4567]  __se_sys_mount+0x2d6/0x3c0
[  278.714975][ T4567]  ? __x64_sys_mount+0xc0/0xc0
[  278.719727][ T4567]  ? lockdep_hardirqs_on+0x94/0x140
[  278.724916][ T4567]  ? __x64_sys_mount+0x1c/0xc0
[  278.729658][ T4567]  do_syscall_64+0x4c/0xa0
[  278.734056][ T4567]  ? clear_bhb_loop+0x30/0x80
[  278.738712][ T4567]  ? clear_bhb_loop+0x30/0x80
[  278.743368][ T4567]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  278.749239][ T4567] RIP: 0033:0x7f2a4ca7feea
[  278.753634][ T4567] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  278.773220][ T4567] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  278.781626][ T4567] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  278.789625][ T4567] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  278.797576][ T4567] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  278.805536][ T4567] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  278.813619][ T4567] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  278.821600][ T4567]  </TASK>
[  278.825053][ T4567] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  278.838206][ T4567] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.159550][ T4569] loop1: detected capacity change from 0 to 32768
[  279.206881][ T4569] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.216407][ T4569] CPU: 0 PID: 4569 Comm: syz.1.191 Not tainted syzkaller #0
[  279.223712][ T4569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  279.233775][ T4569] Call Trace:
[  279.237060][ T4569]  <TASK>
[  279.239993][ T4569]  dump_stack_lvl+0x168/0x230
[  279.244680][ T4569]  ? show_regs_print_info+0x20/0x20
[  279.249885][ T4569]  ? load_image+0x3b0/0x3b0
[  279.254418][ T4569]  sysfs_create_dir_ns+0x252/0x280
[  279.259555][ T4569]  ? __lock_acquire+0x7c60/0x7c60
[  279.264590][ T4569]  ? sysfs_warn_dup+0xa0/0xa0
[  279.269346][ T4569]  ? do_raw_spin_unlock+0x11d/0x230
[  279.274563][ T4569]  kobject_add_internal+0x662/0xd00
[  279.279997][ T4569]  kobject_init_and_add+0x122/0x190
[  279.285203][ T4569]  ? lockdep_softirqs_off+0x420/0x420
[  279.290564][ T4569]  ? kobject_add+0x210/0x210
[  279.295135][ T4569]  ? __init_swait_queue_head+0xa5/0x150
[  279.300661][ T4569]  gfs2_sys_fs_add+0x234/0x480
[  279.305403][ T4569]  ? gfs2_recover_set+0x240/0x240
[  279.310404][ T4569]  ? snprintf+0xd7/0x120
[  279.314623][ T4569]  ? __free_pages+0x95/0x1a0
[  279.319193][ T4569]  ? vscnprintf+0x80/0x80
[  279.323505][ T4569]  gfs2_fill_super+0x128d/0x1f50
[  279.328428][ T4569]  ? gfs2_reconfigure+0xcd0/0xcd0
[  279.333438][ T4569]  ? preempt_count_add+0x8d/0x190
[  279.338451][ T4569]  ? sb_set_blocksize+0xa5/0xe0
[  279.343282][ T4569]  get_tree_bdev+0x3f1/0x610
[  279.347851][ T4569]  ? gfs2_reconfigure+0xcd0/0xcd0
[  279.352860][ T4569]  gfs2_get_tree+0x4d/0x1e0
[  279.357344][ T4569]  vfs_get_tree+0x88/0x270
[  279.361749][ T4569]  do_new_mount+0x24a/0xa40
[  279.366239][ T4569]  __se_sys_mount+0x2d6/0x3c0
[  279.370897][ T4569]  ? __x64_sys_mount+0xc0/0xc0
[  279.375649][ T4569]  ? lockdep_hardirqs_on+0x94/0x140
[  279.380828][ T4569]  ? __x64_sys_mount+0x1c/0xc0
[  279.385576][ T4569]  do_syscall_64+0x4c/0xa0
[  279.389976][ T4569]  ? clear_bhb_loop+0x30/0x80
[  279.394633][ T4569]  ? clear_bhb_loop+0x30/0x80
[  279.399287][ T4569]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  279.405158][ T4569] RIP: 0033:0x7f2a4ca7feea
[  279.409556][ T4569] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  279.429149][ T4569] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.437546][ T4569] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  279.445509][ T4569] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  279.453468][ T4569] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  279.461425][ T4569] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  279.469385][ T4569] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  279.477354][ T4569]  </TASK>
[  279.481300][ T4569] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  279.494440][ T4569] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.817746][ T4570] loop1: detected capacity change from 0 to 32768
[  279.859633][ T4570] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.867217][ T4570] CPU: 1 PID: 4570 Comm: syz.1.192 Not tainted syzkaller #0
[  279.874511][ T4570] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  279.884569][ T4570] Call Trace:
[  279.887856][ T4570]  <TASK>
[  279.890793][ T4570]  dump_stack_lvl+0x168/0x230
[  279.895481][ T4570]  ? show_regs_print_info+0x20/0x20
[  279.900692][ T4570]  ? load_image+0x3b0/0x3b0
[  279.905368][ T4570]  sysfs_create_dir_ns+0x252/0x280
[  279.910497][ T4570]  ? __lock_acquire+0x7c60/0x7c60
[  279.915539][ T4570]  ? sysfs_warn_dup+0xa0/0xa0
[  279.920230][ T4570]  ? do_raw_spin_unlock+0x11d/0x230
[  279.925439][ T4570]  kobject_add_internal+0x662/0xd00
[  279.930655][ T4570]  kobject_init_and_add+0x122/0x190
[  279.935860][ T4570]  ? lockdep_softirqs_off+0x420/0x420
[  279.941282][ T4570]  ? kobject_add+0x210/0x210
[  279.945894][ T4570]  ? __init_swait_queue_head+0xa5/0x150
[  279.951448][ T4570]  gfs2_sys_fs_add+0x234/0x480
[  279.956200][ T4570]  ? gfs2_recover_set+0x240/0x240
[  279.961205][ T4570]  ? snprintf+0xd7/0x120
[  279.965451][ T4570]  ? __free_pages+0x95/0x1a0
[  279.970026][ T4570]  ? vscnprintf+0x80/0x80
[  279.974356][ T4570]  gfs2_fill_super+0x128d/0x1f50
[  279.979310][ T4570]  ? gfs2_reconfigure+0xcd0/0xcd0
[  279.984343][ T4570]  ? preempt_count_add+0x8d/0x190
[  279.989359][ T4570]  ? sb_set_blocksize+0xa5/0xe0
[  279.994188][ T4570]  get_tree_bdev+0x3f1/0x610
[  279.998757][ T4570]  ? gfs2_reconfigure+0xcd0/0xcd0
[  280.003758][ T4570]  gfs2_get_tree+0x4d/0x1e0
[  280.008241][ T4570]  vfs_get_tree+0x88/0x270
[  280.012637][ T4570]  do_new_mount+0x24a/0xa40
[  280.017118][ T4570]  __se_sys_mount+0x2d6/0x3c0
[  280.021782][ T4570]  ? __x64_sys_mount+0xc0/0xc0
[  280.026540][ T4570]  ? lockdep_hardirqs_on+0x94/0x140
[  280.031714][ T4570]  ? __x64_sys_mount+0x1c/0xc0
[  280.036458][ T4570]  do_syscall_64+0x4c/0xa0
[  280.040855][ T4570]  ? clear_bhb_loop+0x30/0x80
[  280.045534][ T4570]  ? clear_bhb_loop+0x30/0x80
[  280.050191][ T4570]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  280.056063][ T4570] RIP: 0033:0x7f2a4ca7feea
[  280.060471][ T4570] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  280.080146][ T4570] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  280.088545][ T4570] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  280.096501][ T4570] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  280.104461][ T4570] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  280.112502][ T4570] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  280.120454][ T4570] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  280.128416][ T4570]  </TASK>
[  280.133207][ T4570] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  280.146618][ T4570] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  280.482187][ T4571] loop1: detected capacity change from 0 to 32768
[  280.543620][ T4571] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  280.552218][ T4571] CPU: 0 PID: 4571 Comm: syz.1.193 Not tainted syzkaller #0
[  280.559532][ T4571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  280.569770][ T4571] Call Trace:
[  280.573056][ T4571]  <TASK>
[  280.575990][ T4571]  dump_stack_lvl+0x168/0x230
[  280.580671][ T4571]  ? show_regs_print_info+0x20/0x20
[  280.585878][ T4571]  ? load_image+0x3b0/0x3b0
[  280.590398][ T4571]  sysfs_create_dir_ns+0x252/0x280
[  280.595512][ T4571]  ? __lock_acquire+0x7c60/0x7c60
[  280.600524][ T4571]  ? sysfs_warn_dup+0xa0/0xa0
[  280.605214][ T4571]  ? do_raw_spin_unlock+0x11d/0x230
[  280.610411][ T4571]  kobject_add_internal+0x662/0xd00
[  280.615606][ T4571]  kobject_init_and_add+0x122/0x190
[  280.620789][ T4571]  ? lockdep_softirqs_off+0x420/0x420
[  280.626146][ T4571]  ? kobject_add+0x210/0x210
[  280.630739][ T4571]  ? __init_swait_queue_head+0xa5/0x150
[  280.636299][ T4571]  gfs2_sys_fs_add+0x234/0x480
[  280.641057][ T4571]  ? gfs2_recover_set+0x240/0x240
[  280.646078][ T4571]  ? snprintf+0xd7/0x120
[  280.650304][ T4571]  ? __free_pages+0x95/0x1a0
[  280.654873][ T4571]  ? vscnprintf+0x80/0x80
[  280.659193][ T4571]  gfs2_fill_super+0x128d/0x1f50
[  280.664125][ T4571]  ? gfs2_reconfigure+0xcd0/0xcd0
[  280.669139][ T4571]  ? preempt_count_add+0x8d/0x190
[  280.674156][ T4571]  ? sb_set_blocksize+0xa5/0xe0
[  280.678989][ T4571]  get_tree_bdev+0x3f1/0x610
[  280.683787][ T4571]  ? gfs2_reconfigure+0xcd0/0xcd0
[  280.688820][ T4571]  gfs2_get_tree+0x4d/0x1e0
[  280.693320][ T4571]  vfs_get_tree+0x88/0x270
[  280.697725][ T4571]  do_new_mount+0x24a/0xa40
[  280.702214][ T4571]  __se_sys_mount+0x2d6/0x3c0
[  280.706879][ T4571]  ? __x64_sys_mount+0xc0/0xc0
[  280.711626][ T4571]  ? lockdep_hardirqs_on+0x94/0x140
[  280.716809][ T4571]  ? __x64_sys_mount+0x1c/0xc0
[  280.721563][ T4571]  do_syscall_64+0x4c/0xa0
[  280.725974][ T4571]  ? clear_bhb_loop+0x30/0x80
[  280.730628][ T4571]  ? clear_bhb_loop+0x30/0x80
[  280.735288][ T4571]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  280.741168][ T4571] RIP: 0033:0x7f2a4ca7feea
[  280.745578][ T4571] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  280.765166][ T4571] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  280.773563][ T4571] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  280.781520][ T4571] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  280.789484][ T4571] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  280.797524][ T4571] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  280.805567][ T4571] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  280.813539][ T4571]  </TASK>
[  280.817179][ T4571] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  280.830428][ T4571] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/06 05:51:26 executed programs: 179
[  281.181522][ T4573] loop1: detected capacity change from 0 to 32768
[  281.232484][ T4573] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  281.239911][ T4573] CPU: 0 PID: 4573 Comm: syz.1.194 Not tainted syzkaller #0
[  281.247206][ T4573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  281.257268][ T4573] Call Trace:
[  281.260564][ T4573]  <TASK>
[  281.263503][ T4573]  dump_stack_lvl+0x168/0x230
[  281.268226][ T4573]  ? show_regs_print_info+0x20/0x20
[  281.273443][ T4573]  ? load_image+0x3b0/0x3b0
[  281.277973][ T4573]  sysfs_create_dir_ns+0x252/0x280
[  281.283095][ T4573]  ? __lock_acquire+0x7c60/0x7c60
[  281.288132][ T4573]  ? sysfs_warn_dup+0xa0/0xa0
[  281.292825][ T4573]  ? do_raw_spin_unlock+0x11d/0x230
[  281.298038][ T4573]  kobject_add_internal+0x662/0xd00
[  281.303245][ T4573]  kobject_init_and_add+0x122/0x190
[  281.308453][ T4573]  ? lockdep_softirqs_off+0x420/0x420
[  281.313836][ T4573]  ? kobject_add+0x210/0x210
[  281.318524][ T4573]  ? __init_swait_queue_head+0xa5/0x150
[  281.324081][ T4573]  gfs2_sys_fs_add+0x234/0x480
[  281.328854][ T4573]  ? gfs2_recover_set+0x240/0x240
[  281.333882][ T4573]  ? snprintf+0xd7/0x120
[  281.338131][ T4573]  ? __free_pages+0x95/0x1a0
[  281.342713][ T4573]  ? vscnprintf+0x80/0x80
[  281.347036][ T4573]  gfs2_fill_super+0x128d/0x1f50
[  281.352067][ T4573]  ? gfs2_reconfigure+0xcd0/0xcd0
[  281.357118][ T4573]  ? preempt_count_add+0x8d/0x190
[  281.362130][ T4573]  ? sb_set_blocksize+0xa5/0xe0
[  281.366963][ T4573]  get_tree_bdev+0x3f1/0x610
[  281.371540][ T4573]  ? gfs2_reconfigure+0xcd0/0xcd0
[  281.376565][ T4573]  gfs2_get_tree+0x4d/0x1e0
[  281.381061][ T4573]  vfs_get_tree+0x88/0x270
[  281.385467][ T4573]  do_new_mount+0x24a/0xa40
[  281.389953][ T4573]  __se_sys_mount+0x2d6/0x3c0
[  281.394612][ T4573]  ? __x64_sys_mount+0xc0/0xc0
[  281.399356][ T4573]  ? lockdep_hardirqs_on+0x94/0x140
[  281.404533][ T4573]  ? __x64_sys_mount+0x1c/0xc0
[  281.409279][ T4573]  do_syscall_64+0x4c/0xa0
[  281.413678][ T4573]  ? clear_bhb_loop+0x30/0x80
[  281.418340][ T4573]  ? clear_bhb_loop+0x30/0x80
[  281.422995][ T4573]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  281.428880][ T4573] RIP: 0033:0x7f2a4ca7feea
[  281.433289][ T4573] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  281.452891][ T4573] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  281.461407][ T4573] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  281.469363][ T4573] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  281.477406][ T4573] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  281.485365][ T4573] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  281.493320][ T4573] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  281.501287][ T4573]  </TASK>
[  281.504818][ T4573] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  281.518142][ T4573] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  281.872483][ T4575] loop1: detected capacity change from 0 to 32768
[  281.953044][ T4575] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  281.960662][ T4575] CPU: 0 PID: 4575 Comm: syz.1.195 Not tainted syzkaller #0
[  281.967950][ T4575] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  281.978007][ T4575] Call Trace:
[  281.981290][ T4575]  <TASK>
[  281.984224][ T4575]  dump_stack_lvl+0x168/0x230
[  281.988913][ T4575]  ? show_regs_print_info+0x20/0x20
[  281.994131][ T4575]  ? load_image+0x3b0/0x3b0
[  281.998647][ T4575]  sysfs_create_dir_ns+0x252/0x280
[  282.003769][ T4575]  ? __lock_acquire+0x7c60/0x7c60
[  282.008784][ T4575]  ? sysfs_warn_dup+0xa0/0xa0
[  282.013446][ T4575]  ? do_raw_spin_unlock+0x11d/0x230
[  282.018632][ T4575]  kobject_add_internal+0x662/0xd00
[  282.023826][ T4575]  kobject_init_and_add+0x122/0x190
[  282.029004][ T4575]  ? lockdep_softirqs_off+0x420/0x420
[  282.034356][ T4575]  ? kobject_add+0x210/0x210
[  282.038926][ T4575]  ? __init_swait_queue_head+0xa5/0x150
[  282.044541][ T4575]  gfs2_sys_fs_add+0x234/0x480
[  282.049286][ T4575]  ? gfs2_recover_set+0x240/0x240
[  282.054290][ T4575]  ? snprintf+0xd7/0x120
[  282.058517][ T4575]  ? __free_pages+0x95/0x1a0
[  282.063093][ T4575]  ? vscnprintf+0x80/0x80
[  282.067415][ T4575]  gfs2_fill_super+0x128d/0x1f50
[  282.072338][ T4575]  ? gfs2_reconfigure+0xcd0/0xcd0
[  282.077343][ T4575]  ? preempt_count_add+0x8d/0x190
[  282.082355][ T4575]  ? sb_set_blocksize+0xa5/0xe0
[  282.087279][ T4575]  get_tree_bdev+0x3f1/0x610
[  282.091852][ T4575]  ? gfs2_reconfigure+0xcd0/0xcd0
[  282.096862][ T4575]  gfs2_get_tree+0x4d/0x1e0
[  282.101355][ T4575]  vfs_get_tree+0x88/0x270
[  282.105770][ T4575]  do_new_mount+0x24a/0xa40
[  282.110256][ T4575]  __se_sys_mount+0x2d6/0x3c0
[  282.114920][ T4575]  ? __x64_sys_mount+0xc0/0xc0
[  282.119664][ T4575]  ? lockdep_hardirqs_on+0x94/0x140
[  282.124840][ T4575]  ? __x64_sys_mount+0x1c/0xc0
[  282.129582][ T4575]  do_syscall_64+0x4c/0xa0
[  282.133974][ T4575]  ? clear_bhb_loop+0x30/0x80
[  282.138629][ T4575]  ? clear_bhb_loop+0x30/0x80
[  282.143288][ T4575]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  282.149161][ T4575] RIP: 0033:0x7f2a4ca7feea
[  282.153644][ T4575] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  282.173231][ T4575] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  282.181631][ T4575] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  282.189587][ T4575] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  282.197542][ T4575] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  282.205498][ T4575] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  282.213454][ T4575] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  282.221422][ T4575]  </TASK>
[  282.228824][ T4575] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  282.244095][ T4575] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  282.569831][ T4578] loop1: detected capacity change from 0 to 32768
[  282.613410][ T4578] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  282.621501][ T4578] CPU: 1 PID: 4578 Comm: syz.1.196 Not tainted syzkaller #0
[  282.628804][ T4578] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  282.638861][ T4578] Call Trace:
[  282.642145][ T4578]  <TASK>
[  282.645098][ T4578]  dump_stack_lvl+0x168/0x230
[  282.649792][ T4578]  ? show_regs_print_info+0x20/0x20
[  282.655210][ T4578]  ? load_image+0x3b0/0x3b0
[  282.659740][ T4578]  sysfs_create_dir_ns+0x252/0x280
[  282.664861][ T4578]  ? __lock_acquire+0x7c60/0x7c60
[  282.669895][ T4578]  ? sysfs_warn_dup+0xa0/0xa0
[  282.674586][ T4578]  ? do_raw_spin_unlock+0x11d/0x230
[  282.679797][ T4578]  kobject_add_internal+0x662/0xd00
[  282.685005][ T4578]  kobject_init_and_add+0x122/0x190
[  282.690215][ T4578]  ? lockdep_softirqs_off+0x420/0x420
[  282.695602][ T4578]  ? kobject_add+0x210/0x210
[  282.700201][ T4578]  ? __init_swait_queue_head+0xa5/0x150
[  282.705750][ T4578]  gfs2_sys_fs_add+0x234/0x480
[  282.710501][ T4578]  ? gfs2_recover_set+0x240/0x240
[  282.715500][ T4578]  ? snprintf+0xd7/0x120
[  282.719722][ T4578]  ? __free_pages+0x95/0x1a0
[  282.724292][ T4578]  ? vscnprintf+0x80/0x80
[  282.728612][ T4578]  gfs2_fill_super+0x128d/0x1f50
[  282.733546][ T4578]  ? gfs2_reconfigure+0xcd0/0xcd0
[  282.738552][ T4578]  ? preempt_count_add+0x8d/0x190
[  282.743564][ T4578]  ? sb_set_blocksize+0xa5/0xe0
[  282.748408][ T4578]  get_tree_bdev+0x3f1/0x610
[  282.752976][ T4578]  ? gfs2_reconfigure+0xcd0/0xcd0
[  282.757980][ T4578]  gfs2_get_tree+0x4d/0x1e0
[  282.762559][ T4578]  vfs_get_tree+0x88/0x270
[  282.766972][ T4578]  do_new_mount+0x24a/0xa40
[  282.771458][ T4578]  __se_sys_mount+0x2d6/0x3c0
[  282.776295][ T4578]  ? __x64_sys_mount+0xc0/0xc0
[  282.781051][ T4578]  ? lockdep_hardirqs_on+0x94/0x140
[  282.786244][ T4578]  ? __x64_sys_mount+0x1c/0xc0
[  282.790993][ T4578]  do_syscall_64+0x4c/0xa0
[  282.795399][ T4578]  ? clear_bhb_loop+0x30/0x80
[  282.800066][ T4578]  ? clear_bhb_loop+0x30/0x80
[  282.804817][ T4578]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  282.810790][ T4578] RIP: 0033:0x7f2a4ca7feea
[  282.815193][ T4578] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  282.834879][ T4578] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  282.843288][ T4578] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  282.851249][ T4578] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  282.859214][ T4578] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  282.867175][ T4578] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  282.875131][ T4578] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  282.883095][ T4578]  </TASK>
[  282.888905][ T4578] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  282.902672][ T4578] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  283.250559][ T4579] loop1: detected capacity change from 0 to 32768
[  283.319576][ T4579] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  283.327267][ T4579] CPU: 0 PID: 4579 Comm: syz.1.197 Not tainted syzkaller #0
[  283.334580][ T4579] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  283.344652][ T4579] Call Trace:
[  283.347936][ T4579]  <TASK>
[  283.350870][ T4579]  dump_stack_lvl+0x168/0x230
[  283.355648][ T4579]  ? show_regs_print_info+0x20/0x20
[  283.360864][ T4579]  ? load_image+0x3b0/0x3b0
[  283.365390][ T4579]  sysfs_create_dir_ns+0x252/0x280
[  283.370517][ T4579]  ? __lock_acquire+0x7c60/0x7c60
[  283.375551][ T4579]  ? sysfs_warn_dup+0xa0/0xa0
[  283.380249][ T4579]  ? do_raw_spin_unlock+0x11d/0x230
[  283.385637][ T4579]  kobject_add_internal+0x662/0xd00
[  283.390853][ T4579]  kobject_init_and_add+0x122/0x190
[  283.396062][ T4579]  ? lockdep_softirqs_off+0x420/0x420
[  283.401454][ T4579]  ? kobject_add+0x210/0x210
[  283.406055][ T4579]  ? __init_swait_queue_head+0xa5/0x150
[  283.411593][ T4579]  gfs2_sys_fs_add+0x234/0x480
[  283.416611][ T4579]  ? gfs2_recover_set+0x240/0x240
[  283.421630][ T4579]  ? snprintf+0xd7/0x120
[  283.425875][ T4579]  ? __free_pages+0x95/0x1a0
[  283.430449][ T4579]  ? vscnprintf+0x80/0x80
[  283.434766][ T4579]  gfs2_fill_super+0x128d/0x1f50
[  283.439703][ T4579]  ? gfs2_reconfigure+0xcd0/0xcd0
[  283.444715][ T4579]  ? preempt_count_add+0x8d/0x190
[  283.449816][ T4579]  ? sb_set_blocksize+0xa5/0xe0
[  283.454649][ T4579]  get_tree_bdev+0x3f1/0x610
[  283.459313][ T4579]  ? gfs2_reconfigure+0xcd0/0xcd0
[  283.464328][ T4579]  gfs2_get_tree+0x4d/0x1e0
[  283.468816][ T4579]  vfs_get_tree+0x88/0x270
[  283.473361][ T4579]  do_new_mount+0x24a/0xa40
[  283.477867][ T4579]  __se_sys_mount+0x2d6/0x3c0
[  283.482544][ T4579]  ? __x64_sys_mount+0xc0/0xc0
[  283.487403][ T4579]  ? lockdep_hardirqs_on+0x94/0x140
[  283.492792][ T4579]  ? __x64_sys_mount+0x1c/0xc0
[  283.497601][ T4579]  do_syscall_64+0x4c/0xa0
[  283.502015][ T4579]  ? clear_bhb_loop+0x30/0x80
[  283.506709][ T4579]  ? clear_bhb_loop+0x30/0x80
[  283.511382][ T4579]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  283.517268][ T4579] RIP: 0033:0x7f2a4ca7feea
[  283.521679][ T4579] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  283.541295][ T4579] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  283.549719][ T4579] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  283.557681][ T4579] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  283.565644][ T4579] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  283.573599][ T4579] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  283.581572][ T4579] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  283.589554][ T4579]  </TASK>
[  283.593142][ T4579] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  283.606291][ T4579] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  283.937077][ T4581] loop1: detected capacity change from 0 to 32768
[  284.000626][ T4581] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  284.010238][ T4581] CPU: 0 PID: 4581 Comm: syz.1.198 Not tainted syzkaller #0
[  284.017529][ T4581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  284.027597][ T4581] Call Trace:
[  284.030896][ T4581]  <TASK>
[  284.033830][ T4581]  dump_stack_lvl+0x168/0x230
[  284.038519][ T4581]  ? show_regs_print_info+0x20/0x20
[  284.043726][ T4581]  ? load_image+0x3b0/0x3b0
[  284.048253][ T4581]  sysfs_create_dir_ns+0x252/0x280
[  284.053555][ T4581]  ? __lock_acquire+0x7c60/0x7c60
[  284.058591][ T4581]  ? sysfs_warn_dup+0xa0/0xa0
[  284.063281][ T4581]  ? do_raw_spin_unlock+0x11d/0x230
[  284.068499][ T4581]  kobject_add_internal+0x662/0xd00
[  284.073717][ T4581]  kobject_init_and_add+0x122/0x190
[  284.078919][ T4581]  ? lockdep_softirqs_off+0x420/0x420
[  284.084301][ T4581]  ? kobject_add+0x210/0x210
[  284.088876][ T4581]  ? __init_swait_queue_head+0xa5/0x150
[  284.094442][ T4581]  gfs2_sys_fs_add+0x234/0x480
[  284.099190][ T4581]  ? gfs2_recover_set+0x240/0x240
[  284.104195][ T4581]  ? snprintf+0xd7/0x120
[  284.108420][ T4581]  ? __free_pages+0x95/0x1a0
[  284.112994][ T4581]  ? vscnprintf+0x80/0x80
[  284.117316][ T4581]  gfs2_fill_super+0x128d/0x1f50
[  284.122242][ T4581]  ? gfs2_reconfigure+0xcd0/0xcd0
[  284.127246][ T4581]  ? preempt_count_add+0x8d/0x190
[  284.132431][ T4581]  ? sb_set_blocksize+0xa5/0xe0
[  284.137268][ T4581]  get_tree_bdev+0x3f1/0x610
[  284.141849][ T4581]  ? gfs2_reconfigure+0xcd0/0xcd0
[  284.146861][ T4581]  gfs2_get_tree+0x4d/0x1e0
[  284.151346][ T4581]  vfs_get_tree+0x88/0x270
[  284.155748][ T4581]  do_new_mount+0x24a/0xa40
[  284.160233][ T4581]  __se_sys_mount+0x2d6/0x3c0
[  284.164888][ T4581]  ? __x64_sys_mount+0xc0/0xc0
[  284.169642][ T4581]  ? lockdep_hardirqs_on+0x94/0x140
[  284.174820][ T4581]  ? __x64_sys_mount+0x1c/0xc0
[  284.179565][ T4581]  do_syscall_64+0x4c/0xa0
[  284.183962][ T4581]  ? clear_bhb_loop+0x30/0x80
[  284.188618][ T4581]  ? clear_bhb_loop+0x30/0x80
[  284.193275][ T4581]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  284.199159][ T4581] RIP: 0033:0x7f2a4ca7feea
[  284.203558][ T4581] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  284.223142][ T4581] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  284.231537][ T4581] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  284.239505][ T4581] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  284.247491][ T4581] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  284.255449][ T4581] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  284.263405][ T4581] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  284.271369][ T4581]  </TASK>
[  284.275274][ T4581] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  284.288623][ T4581] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  284.608417][ T4582] loop1: detected capacity change from 0 to 32768
[  284.669427][ T4582] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  284.677379][ T4582] CPU: 0 PID: 4582 Comm: syz.1.199 Not tainted syzkaller #0
[  284.684685][ T4582] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  284.694751][ T4582] Call Trace:
[  284.698037][ T4582]  <TASK>
[  284.700970][ T4582]  dump_stack_lvl+0x168/0x230
[  284.705658][ T4582]  ? show_regs_print_info+0x20/0x20
[  284.710873][ T4582]  ? load_image+0x3b0/0x3b0
[  284.715399][ T4582]  sysfs_create_dir_ns+0x252/0x280
[  284.720526][ T4582]  ? __lock_acquire+0x7c60/0x7c60
[  284.725562][ T4582]  ? sysfs_warn_dup+0xa0/0xa0
[  284.730250][ T4582]  ? do_raw_spin_unlock+0x11d/0x230
[  284.735458][ T4582]  kobject_add_internal+0x662/0xd00
[  284.740670][ T4582]  kobject_init_and_add+0x122/0x190
[  284.745876][ T4582]  ? lockdep_softirqs_off+0x420/0x420
[  284.751265][ T4582]  ? kobject_add+0x210/0x210
[  284.755872][ T4582]  ? __init_swait_queue_head+0xa5/0x150
[  284.761408][ T4582]  gfs2_sys_fs_add+0x234/0x480
[  284.766160][ T4582]  ? gfs2_recover_set+0x240/0x240
[  284.771169][ T4582]  ? snprintf+0xd7/0x120
[  284.775408][ T4582]  ? __free_pages+0x95/0x1a0
[  284.779981][ T4582]  ? vscnprintf+0x80/0x80
[  284.784383][ T4582]  gfs2_fill_super+0x128d/0x1f50
[  284.789311][ T4582]  ? gfs2_reconfigure+0xcd0/0xcd0
[  284.794318][ T4582]  ? preempt_count_add+0x8d/0x190
[  284.799331][ T4582]  ? sb_set_blocksize+0xa5/0xe0
[  284.804162][ T4582]  get_tree_bdev+0x3f1/0x610
[  284.808779][ T4582]  ? gfs2_reconfigure+0xcd0/0xcd0
[  284.813793][ T4582]  gfs2_get_tree+0x4d/0x1e0
[  284.818298][ T4582]  vfs_get_tree+0x88/0x270
[  284.822699][ T4582]  do_new_mount+0x24a/0xa40
[  284.827186][ T4582]  __se_sys_mount+0x2d6/0x3c0
[  284.831853][ T4582]  ? __x64_sys_mount+0xc0/0xc0
[  284.836618][ T4582]  ? lockdep_hardirqs_on+0x94/0x140
[  284.841803][ T4582]  ? __x64_sys_mount+0x1c/0xc0
[  284.846548][ T4582]  do_syscall_64+0x4c/0xa0
[  284.850945][ T4582]  ? clear_bhb_loop+0x30/0x80
[  284.855601][ T4582]  ? clear_bhb_loop+0x30/0x80
[  284.860263][ T4582]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  284.866139][ T4582] RIP: 0033:0x7f2a4ca7feea
[  284.870547][ T4582] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  284.890322][ T4582] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  284.898731][ T4582] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  284.906685][ T4582] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  284.914654][ T4582] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  284.922613][ T4582] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  284.930569][ T4582] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  284.938563][ T4582]  </TASK>
[  284.942369][ T4582] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  284.955512][ T4582] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  285.268659][ T4583] loop1: detected capacity change from 0 to 32768
[  285.319719][ T4583] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  285.327156][ T4583] CPU: 0 PID: 4583 Comm: syz.1.200 Not tainted syzkaller #0
[  285.334445][ T4583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  285.344505][ T4583] Call Trace:
[  285.347789][ T4583]  <TASK>
[  285.350727][ T4583]  dump_stack_lvl+0x168/0x230
[  285.355424][ T4583]  ? show_regs_print_info+0x20/0x20
[  285.360633][ T4583]  ? load_image+0x3b0/0x3b0
[  285.365853][ T4583]  sysfs_create_dir_ns+0x252/0x280
[  285.370986][ T4583]  ? __lock_acquire+0x7c60/0x7c60
[  285.376028][ T4583]  ? sysfs_warn_dup+0xa0/0xa0
[  285.380730][ T4583]  ? do_raw_spin_unlock+0x11d/0x230
[  285.385940][ T4583]  kobject_add_internal+0x662/0xd00
[  285.391153][ T4583]  kobject_init_and_add+0x122/0x190
[  285.396352][ T4583]  ? lockdep_softirqs_off+0x420/0x420
[  285.401735][ T4583]  ? kobject_add+0x210/0x210
[  285.406334][ T4583]  ? __init_swait_queue_head+0xa5/0x150
[  285.411898][ T4583]  gfs2_sys_fs_add+0x234/0x480
[  285.416664][ T4583]  ? gfs2_recover_set+0x240/0x240
[  285.421671][ T4583]  ? snprintf+0xd7/0x120
[  285.425898][ T4583]  ? __free_pages+0x95/0x1a0
[  285.430469][ T4583]  ? vscnprintf+0x80/0x80
[  285.434786][ T4583]  gfs2_fill_super+0x128d/0x1f50
[  285.439717][ T4583]  ? gfs2_reconfigure+0xcd0/0xcd0
[  285.444722][ T4583]  ? preempt_count_add+0x8d/0x190
[  285.449731][ T4583]  ? sb_set_blocksize+0xa5/0xe0
[  285.454597][ T4583]  get_tree_bdev+0x3f1/0x610
[  285.459189][ T4583]  ? gfs2_reconfigure+0xcd0/0xcd0
[  285.464194][ T4583]  gfs2_get_tree+0x4d/0x1e0
[  285.468680][ T4583]  vfs_get_tree+0x88/0x270
[  285.473092][ T4583]  do_new_mount+0x24a/0xa40
[  285.477601][ T4583]  __se_sys_mount+0x2d6/0x3c0
[  285.482265][ T4583]  ? __x64_sys_mount+0xc0/0xc0
[  285.487020][ T4583]  ? lockdep_hardirqs_on+0x94/0x140
[  285.492207][ T4583]  ? __x64_sys_mount+0x1c/0xc0
[  285.496977][ T4583]  do_syscall_64+0x4c/0xa0
[  285.501378][ T4583]  ? clear_bhb_loop+0x30/0x80
[  285.506212][ T4583]  ? clear_bhb_loop+0x30/0x80
[  285.510869][ T4583]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  285.516745][ T4583] RIP: 0033:0x7f2a4ca7feea
[  285.521145][ T4583] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  285.540733][ T4583] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  285.549149][ T4583] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  285.557128][ T4583] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  285.565089][ T4583] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  285.573048][ T4583] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  285.581007][ T4583] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  285.588985][ T4583]  </TASK>
[  285.599712][ T4583] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  285.612937][ T4583] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  285.929167][ T4584] loop1: detected capacity change from 0 to 32768
[  286.015049][ T4584] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  286.022593][ T4584] CPU: 0 PID: 4584 Comm: syz.1.201 Not tainted syzkaller #0
[  286.029890][ T4584] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  286.039955][ T4584] Call Trace:
[  286.043246][ T4584]  <TASK>
[  286.046183][ T4584]  dump_stack_lvl+0x168/0x230
[  286.050875][ T4584]  ? show_regs_print_info+0x20/0x20
[  286.056088][ T4584]  ? load_image+0x3b0/0x3b0
[  286.060607][ T4584]  sysfs_create_dir_ns+0x252/0x280
[  286.065735][ T4584]  ? __lock_acquire+0x7c60/0x7c60
[  286.070753][ T4584]  ? sysfs_warn_dup+0xa0/0xa0
[  286.075420][ T4584]  ? do_raw_spin_unlock+0x11d/0x230
[  286.080603][ T4584]  kobject_add_internal+0x662/0xd00
[  286.085790][ T4584]  kobject_init_and_add+0x122/0x190
[  286.090980][ T4584]  ? lockdep_softirqs_off+0x420/0x420
[  286.096360][ T4584]  ? kobject_add+0x210/0x210
[  286.100937][ T4584]  ? __init_swait_queue_head+0xa5/0x150
[  286.106467][ T4584]  gfs2_sys_fs_add+0x234/0x480
[  286.111214][ T4584]  ? gfs2_recover_set+0x240/0x240
[  286.116223][ T4584]  ? snprintf+0xd7/0x120
[  286.120444][ T4584]  ? __free_pages+0x95/0x1a0
[  286.125021][ T4584]  ? vscnprintf+0x80/0x80
[  286.129363][ T4584]  gfs2_fill_super+0x128d/0x1f50
[  286.134289][ T4584]  ? gfs2_reconfigure+0xcd0/0xcd0
[  286.139294][ T4584]  ? preempt_count_add+0x8d/0x190
[  286.144303][ T4584]  ? sb_set_blocksize+0xa5/0xe0
[  286.149137][ T4584]  get_tree_bdev+0x3f1/0x610
[  286.153711][ T4584]  ? gfs2_reconfigure+0xcd0/0xcd0
[  286.158718][ T4584]  gfs2_get_tree+0x4d/0x1e0
[  286.163211][ T4584]  vfs_get_tree+0x88/0x270
[  286.167607][ T4584]  do_new_mount+0x24a/0xa40
[  286.172092][ T4584]  __se_sys_mount+0x2d6/0x3c0
[  286.176752][ T4584]  ? __x64_sys_mount+0xc0/0xc0
[  286.181495][ T4584]  ? lockdep_hardirqs_on+0x94/0x140
[  286.186676][ T4584]  ? __x64_sys_mount+0x1c/0xc0
[  286.191425][ T4584]  do_syscall_64+0x4c/0xa0
[  286.195820][ T4584]  ? clear_bhb_loop+0x30/0x80
[  286.200473][ T4584]  ? clear_bhb_loop+0x30/0x80
[  286.205127][ T4584]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  286.211002][ T4584] RIP: 0033:0x7f2a4ca7feea
[  286.215408][ T4584] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  286.234994][ T4584] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  286.243389][ T4584] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  286.251339][ T4584] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  286.259377][ T4584] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  286.267334][ T4584] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  286.275285][ T4584] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  286.283251][ T4584]  </TASK>
[  286.291293][ T4584] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  286.304519][ T4584] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/06 05:51:32 executed programs: 187
[  286.639543][ T4585] loop1: detected capacity change from 0 to 32768
[  286.690125][ T4585] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  286.699083][ T4585] CPU: 0 PID: 4585 Comm: syz.1.202 Not tainted syzkaller #0
[  286.706388][ T4585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  286.716448][ T4585] Call Trace:
[  286.719735][ T4585]  <TASK>
[  286.722673][ T4585]  dump_stack_lvl+0x168/0x230
[  286.727364][ T4585]  ? show_regs_print_info+0x20/0x20
[  286.732573][ T4585]  ? load_image+0x3b0/0x3b0
[  286.737095][ T4585]  sysfs_create_dir_ns+0x252/0x280
[  286.742215][ T4585]  ? __lock_acquire+0x7c60/0x7c60
[  286.747249][ T4585]  ? sysfs_warn_dup+0xa0/0xa0
[  286.751944][ T4585]  ? do_raw_spin_unlock+0x11d/0x230
[  286.757160][ T4585]  kobject_add_internal+0x662/0xd00
[  286.762371][ T4585]  kobject_init_and_add+0x122/0x190
[  286.767574][ T4585]  ? lockdep_softirqs_off+0x420/0x420
[  286.772956][ T4585]  ? kobject_add+0x210/0x210
[  286.777571][ T4585]  ? __init_swait_queue_head+0xa5/0x150
[  286.783126][ T4585]  gfs2_sys_fs_add+0x234/0x480
[  286.787879][ T4585]  ? gfs2_recover_set+0x240/0x240
[  286.792883][ T4585]  ? snprintf+0xd7/0x120
[  286.797110][ T4585]  ? __free_pages+0x95/0x1a0
[  286.801689][ T4585]  ? vscnprintf+0x80/0x80
[  286.806029][ T4585]  gfs2_fill_super+0x128d/0x1f50
[  286.810957][ T4585]  ? gfs2_reconfigure+0xcd0/0xcd0
[  286.816003][ T4585]  ? preempt_count_add+0x8d/0x190
[  286.821020][ T4585]  ? sb_set_blocksize+0xa5/0xe0
[  286.825894][ T4585]  get_tree_bdev+0x3f1/0x610
[  286.830480][ T4585]  ? gfs2_reconfigure+0xcd0/0xcd0
[  286.835492][ T4585]  gfs2_get_tree+0x4d/0x1e0
[  286.839989][ T4585]  vfs_get_tree+0x88/0x270
[  286.844391][ T4585]  do_new_mount+0x24a/0xa40
[  286.848883][ T4585]  __se_sys_mount+0x2d6/0x3c0
[  286.853633][ T4585]  ? __x64_sys_mount+0xc0/0xc0
[  286.858382][ T4585]  ? lockdep_hardirqs_on+0x94/0x140
[  286.863576][ T4585]  ? __x64_sys_mount+0x1c/0xc0
[  286.868322][ T4585]  do_syscall_64+0x4c/0xa0
[  286.872728][ T4585]  ? clear_bhb_loop+0x30/0x80
[  286.877406][ T4585]  ? clear_bhb_loop+0x30/0x80
[  286.882078][ T4585]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  286.887975][ T4585] RIP: 0033:0x7f2a4ca7feea
[  286.892464][ T4585] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  286.912063][ T4585] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  286.920485][ T4585] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  286.928440][ T4585] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  286.936493][ T4585] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  286.944455][ T4585] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  286.952414][ T4585] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  286.960516][ T4585]  </TASK>
[  286.964209][ T4585] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  286.977362][ T4585] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  287.316158][ T4586] loop1: detected capacity change from 0 to 32768
[  287.371200][ T4586] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  287.378600][ T4586] CPU: 0 PID: 4586 Comm: syz.1.203 Not tainted syzkaller #0
[  287.385895][ T4586] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  287.395962][ T4586] Call Trace:
[  287.399251][ T4586]  <TASK>
[  287.402187][ T4586]  dump_stack_lvl+0x168/0x230
[  287.406881][ T4586]  ? show_regs_print_info+0x20/0x20
[  287.412090][ T4586]  ? load_image+0x3b0/0x3b0
[  287.416619][ T4586]  sysfs_create_dir_ns+0x252/0x280
[  287.421754][ T4586]  ? __lock_acquire+0x7c60/0x7c60
[  287.426790][ T4586]  ? sysfs_warn_dup+0xa0/0xa0
[  287.431485][ T4586]  ? do_raw_spin_unlock+0x11d/0x230
[  287.436703][ T4586]  kobject_add_internal+0x662/0xd00
[  287.441918][ T4586]  kobject_init_and_add+0x122/0x190
[  287.447130][ T4586]  ? lockdep_softirqs_off+0x420/0x420
[  287.452512][ T4586]  ? kobject_add+0x210/0x210
[  287.457103][ T4586]  ? __init_swait_queue_head+0xa5/0x150
[  287.462646][ T4586]  gfs2_sys_fs_add+0x234/0x480
[  287.467410][ T4586]  ? gfs2_recover_set+0x240/0x240
[  287.472412][ T4586]  ? snprintf+0xd7/0x120
[  287.476638][ T4586]  ? __free_pages+0x95/0x1a0
[  287.481212][ T4586]  ? vscnprintf+0x80/0x80
[  287.485546][ T4586]  gfs2_fill_super+0x128d/0x1f50
[  287.490472][ T4586]  ? gfs2_reconfigure+0xcd0/0xcd0
[  287.495481][ T4586]  ? preempt_count_add+0x8d/0x190
[  287.500490][ T4586]  ? sb_set_blocksize+0xa5/0xe0
[  287.505319][ T4586]  get_tree_bdev+0x3f1/0x610
[  287.509901][ T4586]  ? gfs2_reconfigure+0xcd0/0xcd0
[  287.514908][ T4586]  gfs2_get_tree+0x4d/0x1e0
[  287.519400][ T4586]  vfs_get_tree+0x88/0x270
[  287.523799][ T4586]  do_new_mount+0x24a/0xa40
[  287.528285][ T4586]  __se_sys_mount+0x2d6/0x3c0
[  287.532956][ T4586]  ? __x64_sys_mount+0xc0/0xc0
[  287.537720][ T4586]  ? lockdep_hardirqs_on+0x94/0x140
[  287.542897][ T4586]  ? __x64_sys_mount+0x1c/0xc0
[  287.547649][ T4586]  do_syscall_64+0x4c/0xa0
[  287.552051][ T4586]  ? clear_bhb_loop+0x30/0x80
[  287.556706][ T4586]  ? clear_bhb_loop+0x30/0x80
[  287.561361][ T4586]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  287.567235][ T4586] RIP: 0033:0x7f2a4ca7feea
[  287.571632][ T4586] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  287.591222][ T4586] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  287.599621][ T4586] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  287.607749][ T4586] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  287.615790][ T4586] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  287.623747][ T4586] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  287.631716][ T4586] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  287.639751][ T4586]  </TASK>
[  287.643411][ T4586] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  287.656702][ T4586] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  287.972598][ T4587] loop1: detected capacity change from 0 to 32768
[  288.018912][ T4587] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  288.029548][ T4587] CPU: 1 PID: 4587 Comm: syz.1.204 Not tainted syzkaller #0
[  288.036868][ T4587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  288.047018][ T4587] Call Trace:
[  288.050304][ T4587]  <TASK>
[  288.053234][ T4587]  dump_stack_lvl+0x168/0x230
[  288.057923][ T4587]  ? show_regs_print_info+0x20/0x20
[  288.063127][ T4587]  ? load_image+0x3b0/0x3b0
[  288.067649][ T4587]  sysfs_create_dir_ns+0x252/0x280
[  288.072771][ T4587]  ? __lock_acquire+0x7c60/0x7c60
[  288.077810][ T4587]  ? sysfs_warn_dup+0xa0/0xa0
[  288.082496][ T4587]  ? do_raw_spin_unlock+0x11d/0x230
[  288.087704][ T4587]  kobject_add_internal+0x662/0xd00
[  288.092914][ T4587]  kobject_init_and_add+0x122/0x190
[  288.098115][ T4587]  ? lockdep_softirqs_off+0x420/0x420
[  288.103491][ T4587]  ? kobject_add+0x210/0x210
[  288.108069][ T4587]  ? __init_swait_queue_head+0xa5/0x150
[  288.113600][ T4587]  gfs2_sys_fs_add+0x234/0x480
[  288.118344][ T4587]  ? gfs2_recover_set+0x240/0x240
[  288.123341][ T4587]  ? snprintf+0xd7/0x120
[  288.127561][ T4587]  ? __free_pages+0x95/0x1a0
[  288.132135][ T4587]  ? vscnprintf+0x80/0x80
[  288.136454][ T4587]  gfs2_fill_super+0x128d/0x1f50
[  288.141388][ T4587]  ? gfs2_reconfigure+0xcd0/0xcd0
[  288.146421][ T4587]  ? preempt_count_add+0x8d/0x190
[  288.151448][ T4587]  ? sb_set_blocksize+0xa5/0xe0
[  288.156297][ T4587]  get_tree_bdev+0x3f1/0x610
[  288.160885][ T4587]  ? gfs2_reconfigure+0xcd0/0xcd0
[  288.165891][ T4587]  gfs2_get_tree+0x4d/0x1e0
[  288.170377][ T4587]  vfs_get_tree+0x88/0x270
[  288.174774][ T4587]  do_new_mount+0x24a/0xa40
[  288.179262][ T4587]  __se_sys_mount+0x2d6/0x3c0
[  288.184302][ T4587]  ? __x64_sys_mount+0xc0/0xc0
[  288.189234][ T4587]  ? lockdep_hardirqs_on+0x94/0x140
[  288.194507][ T4587]  ? __x64_sys_mount+0x1c/0xc0
[  288.199254][ T4587]  do_syscall_64+0x4c/0xa0
[  288.203650][ T4587]  ? clear_bhb_loop+0x30/0x80
[  288.208305][ T4587]  ? clear_bhb_loop+0x30/0x80
[  288.212961][ T4587]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  288.218846][ T4587] RIP: 0033:0x7f2a4ca7feea
[  288.223238][ T4587] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  288.242825][ T4587] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  288.251225][ T4587] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  288.259193][ T4587] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  288.267150][ T4587] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  288.275216][ T4587] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  288.283170][ T4587] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  288.291139][ T4587]  </TASK>
[  288.296068][ T4587] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  288.309243][ T4587] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  288.341202][ T1110] Bluetooth: hci1: command 0x0406 tx timeout
[  288.609673][ T4588] loop1: detected capacity change from 0 to 32768
[  288.654239][ T4588] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  288.662543][ T4588] CPU: 1 PID: 4588 Comm: syz.1.205 Not tainted syzkaller #0
[  288.669849][ T4588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  288.679999][ T4588] Call Trace:
[  288.683297][ T4588]  <TASK>
[  288.686324][ T4588]  dump_stack_lvl+0x168/0x230
[  288.691365][ T4588]  ? show_regs_print_info+0x20/0x20
[  288.696573][ T4588]  ? load_image+0x3b0/0x3b0
[  288.701098][ T4588]  sysfs_create_dir_ns+0x252/0x280
[  288.706223][ T4588]  ? __lock_acquire+0x7c60/0x7c60
[  288.711263][ T4588]  ? sysfs_warn_dup+0xa0/0xa0
[  288.715962][ T4588]  ? do_raw_spin_unlock+0x11d/0x230
[  288.721177][ T4588]  kobject_add_internal+0x662/0xd00
[  288.726657][ T4588]  kobject_init_and_add+0x122/0x190
[  288.731863][ T4588]  ? lockdep_softirqs_off+0x420/0x420
[  288.737256][ T4588]  ? kobject_add+0x210/0x210
[  288.741850][ T4588]  ? __init_swait_queue_head+0xa5/0x150
[  288.747389][ T4588]  gfs2_sys_fs_add+0x234/0x480
[  288.752140][ T4588]  ? gfs2_recover_set+0x240/0x240
[  288.757147][ T4588]  ? snprintf+0xd7/0x120
[  288.761369][ T4588]  ? __free_pages+0x95/0x1a0
[  288.765942][ T4588]  ? vscnprintf+0x80/0x80
[  288.770255][ T4588]  gfs2_fill_super+0x128d/0x1f50
[  288.775201][ T4588]  ? gfs2_reconfigure+0xcd0/0xcd0
[  288.780239][ T4588]  ? preempt_count_add+0x8d/0x190
[  288.785308][ T4588]  ? sb_set_blocksize+0xa5/0xe0
[  288.790233][ T4588]  get_tree_bdev+0x3f1/0x610
[  288.794810][ T4588]  ? gfs2_reconfigure+0xcd0/0xcd0
[  288.799900][ T4588]  gfs2_get_tree+0x4d/0x1e0
[  288.804381][ T4588]  vfs_get_tree+0x88/0x270
[  288.808782][ T4588]  do_new_mount+0x24a/0xa40
[  288.813272][ T4588]  __se_sys_mount+0x2d6/0x3c0
[  288.817940][ T4588]  ? __x64_sys_mount+0xc0/0xc0
[  288.822692][ T4588]  ? lockdep_hardirqs_on+0x94/0x140
[  288.827888][ T4588]  ? __x64_sys_mount+0x1c/0xc0
[  288.832643][ T4588]  do_syscall_64+0x4c/0xa0
[  288.837039][ T4588]  ? clear_bhb_loop+0x30/0x80
[  288.841694][ T4588]  ? clear_bhb_loop+0x30/0x80
[  288.846351][ T4588]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  288.852226][ T4588] RIP: 0033:0x7f2a4ca7feea
[  288.856637][ T4588] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  288.876252][ T4588] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  288.884655][ T4588] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  288.892611][ T4588] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  288.900571][ T4588] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  288.908541][ T4588] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  288.916497][ T4588] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  288.924462][ T4588]  </TASK>
[  288.929251][ T4588] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  288.942414][ T4588] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  289.246978][ T4589] loop1: detected capacity change from 0 to 32768
[  289.300601][ T4589] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  289.308658][ T4589] CPU: 0 PID: 4589 Comm: syz.1.206 Not tainted syzkaller #0
[  289.315975][ T4589] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  289.326127][ T4589] Call Trace:
[  289.329412][ T4589]  <TASK>
[  289.332352][ T4589]  dump_stack_lvl+0x168/0x230
[  289.337042][ T4589]  ? show_regs_print_info+0x20/0x20
[  289.342246][ T4589]  ? load_image+0x3b0/0x3b0
[  289.346778][ T4589]  sysfs_create_dir_ns+0x252/0x280
[  289.351896][ T4589]  ? __lock_acquire+0x7c60/0x7c60
[  289.356931][ T4589]  ? sysfs_warn_dup+0xa0/0xa0
[  289.361624][ T4589]  ? do_raw_spin_unlock+0x11d/0x230
[  289.366836][ T4589]  kobject_add_internal+0x662/0xd00
[  289.372093][ T4589]  kobject_init_and_add+0x122/0x190
[  289.377299][ T4589]  ? lockdep_softirqs_off+0x420/0x420
[  289.382686][ T4589]  ? kobject_add+0x210/0x210
[  289.387288][ T4589]  ? __init_swait_queue_head+0xa5/0x150
[  289.392830][ T4589]  gfs2_sys_fs_add+0x234/0x480
[  289.397609][ T4589]  ? gfs2_recover_set+0x240/0x240
[  289.402615][ T4589]  ? snprintf+0xd7/0x120
[  289.406840][ T4589]  ? __free_pages+0x95/0x1a0
[  289.411422][ T4589]  ? vscnprintf+0x80/0x80
[  289.415839][ T4589]  gfs2_fill_super+0x128d/0x1f50
[  289.420765][ T4589]  ? gfs2_reconfigure+0xcd0/0xcd0
[  289.425868][ T4589]  ? preempt_count_add+0x8d/0x190
[  289.430920][ T4589]  ? sb_set_blocksize+0xa5/0xe0
[  289.435766][ T4589]  get_tree_bdev+0x3f1/0x610
[  289.440350][ T4589]  ? gfs2_reconfigure+0xcd0/0xcd0
[  289.445371][ T4589]  gfs2_get_tree+0x4d/0x1e0
[  289.449861][ T4589]  vfs_get_tree+0x88/0x270
[  289.454262][ T4589]  do_new_mount+0x24a/0xa40
[  289.458764][ T4589]  __se_sys_mount+0x2d6/0x3c0
[  289.463431][ T4589]  ? __x64_sys_mount+0xc0/0xc0
[  289.468229][ T4589]  ? lockdep_hardirqs_on+0x94/0x140
[  289.473414][ T4589]  ? __x64_sys_mount+0x1c/0xc0
[  289.478183][ T4589]  do_syscall_64+0x4c/0xa0
[  289.482583][ T4589]  ? clear_bhb_loop+0x30/0x80
[  289.487251][ T4589]  ? clear_bhb_loop+0x30/0x80
[  289.491937][ T4589]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  289.497877][ T4589] RIP: 0033:0x7f2a4ca7feea
[  289.502279][ T4589] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  289.521873][ T4589] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  289.530281][ T4589] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  289.538241][ T4589] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  289.546204][ T4589] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  289.554160][ T4589] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  289.562125][ T4589] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  289.570123][ T4589]  </TASK>
[  289.573658][ T4589] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  289.586871][ T4589] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  289.915165][ T4590] loop1: detected capacity change from 0 to 32768
[  289.933026][ T4590] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  289.940427][ T4590] CPU: 0 PID: 4590 Comm: syz.1.207 Not tainted syzkaller #0
[  289.947719][ T4590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  289.957781][ T4590] Call Trace:
[  289.961062][ T4590]  <TASK>
[  289.964002][ T4590]  dump_stack_lvl+0x168/0x230
[  289.968689][ T4590]  ? show_regs_print_info+0x20/0x20
[  289.973879][ T4590]  ? load_image+0x3b0/0x3b0
[  289.978386][ T4590]  sysfs_create_dir_ns+0x252/0x280
[  289.983495][ T4590]  ? __lock_acquire+0x7c60/0x7c60
[  289.988509][ T4590]  ? sysfs_warn_dup+0xa0/0xa0
[  289.993197][ T4590]  ? do_raw_spin_unlock+0x11d/0x230
[  289.998389][ T4590]  kobject_add_internal+0x662/0xd00
[  290.003596][ T4590]  kobject_init_and_add+0x122/0x190
[  290.008780][ T4590]  ? lockdep_softirqs_off+0x420/0x420
[  290.014145][ T4590]  ? kobject_add+0x210/0x210
[  290.018726][ T4590]  ? __init_swait_queue_head+0xa5/0x150
[  290.024282][ T4590]  gfs2_sys_fs_add+0x234/0x480
[  290.029156][ T4590]  ? gfs2_recover_set+0x240/0x240
[  290.034166][ T4590]  ? snprintf+0xd7/0x120
[  290.038395][ T4590]  ? __free_pages+0x95/0x1a0
[  290.042983][ T4590]  ? vscnprintf+0x80/0x80
[  290.047301][ T4590]  gfs2_fill_super+0x128d/0x1f50
[  290.052229][ T4590]  ? gfs2_reconfigure+0xcd0/0xcd0
[  290.057233][ T4590]  ? preempt_count_add+0x8d/0x190
[  290.062243][ T4590]  ? sb_set_blocksize+0xa5/0xe0
[  290.067074][ T4590]  get_tree_bdev+0x3f1/0x610
[  290.071645][ T4590]  ? gfs2_reconfigure+0xcd0/0xcd0
[  290.076741][ T4590]  gfs2_get_tree+0x4d/0x1e0
[  290.081236][ T4590]  vfs_get_tree+0x88/0x270
[  290.085656][ T4590]  do_new_mount+0x24a/0xa40
[  290.090146][ T4590]  __se_sys_mount+0x2d6/0x3c0
[  290.094812][ T4590]  ? __x64_sys_mount+0xc0/0xc0
[  290.099650][ T4590]  ? lockdep_hardirqs_on+0x94/0x140
[  290.104839][ T4590]  ? __x64_sys_mount+0x1c/0xc0
[  290.109619][ T4590]  do_syscall_64+0x4c/0xa0
[  290.114021][ T4590]  ? clear_bhb_loop+0x30/0x80
[  290.118682][ T4590]  ? clear_bhb_loop+0x30/0x80
[  290.123339][ T4590]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  290.129210][ T4590] RIP: 0033:0x7f2a4ca7feea
[  290.133605][ T4590] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  290.153195][ T4590] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  290.161590][ T4590] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  290.169542][ T4590] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  290.177496][ T4590] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  290.185454][ T4590] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  290.193415][ T4590] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  290.201376][ T4590]  </TASK>
[  290.205162][ T4590] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  290.218398][ T4590] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  290.568970][ T4591] loop1: detected capacity change from 0 to 32768
[  290.610953][ T4591] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  290.618495][ T4591] CPU: 0 PID: 4591 Comm: syz.1.208 Not tainted syzkaller #0
[  290.625791][ T4591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  290.635852][ T4591] Call Trace:
[  290.639138][ T4591]  <TASK>
[  290.642082][ T4591]  dump_stack_lvl+0x168/0x230
[  290.646772][ T4591]  ? show_regs_print_info+0x20/0x20
[  290.652014][ T4591]  ? load_image+0x3b0/0x3b0
[  290.656543][ T4591]  sysfs_create_dir_ns+0x252/0x280
[  290.661670][ T4591]  ? __lock_acquire+0x7c60/0x7c60
[  290.666704][ T4591]  ? sysfs_warn_dup+0xa0/0xa0
[  290.671396][ T4591]  ? do_raw_spin_unlock+0x11d/0x230
[  290.676610][ T4591]  kobject_add_internal+0x662/0xd00
[  290.681825][ T4591]  kobject_init_and_add+0x122/0x190
[  290.687023][ T4591]  ? lockdep_softirqs_off+0x420/0x420
[  290.692391][ T4591]  ? kobject_add+0x210/0x210
[  290.696972][ T4591]  ? __init_swait_queue_head+0xa5/0x150
[  290.702500][ T4591]  gfs2_sys_fs_add+0x234/0x480
[  290.707246][ T4591]  ? gfs2_recover_set+0x240/0x240
[  290.712246][ T4591]  ? snprintf+0xd7/0x120
[  290.716466][ T4591]  ? __free_pages+0x95/0x1a0
[  290.721040][ T4591]  ? vscnprintf+0x80/0x80
[  290.725367][ T4591]  gfs2_fill_super+0x128d/0x1f50
[  290.730292][ T4591]  ? gfs2_reconfigure+0xcd0/0xcd0
[  290.735294][ T4591]  ? preempt_count_add+0x8d/0x190
[  290.740301][ T4591]  ? sb_set_blocksize+0xa5/0xe0
[  290.745134][ T4591]  get_tree_bdev+0x3f1/0x610
[  290.749709][ T4591]  ? gfs2_reconfigure+0xcd0/0xcd0
[  290.754712][ T4591]  gfs2_get_tree+0x4d/0x1e0
[  290.759196][ T4591]  vfs_get_tree+0x88/0x270
[  290.763593][ T4591]  do_new_mount+0x24a/0xa40
[  290.768076][ T4591]  __se_sys_mount+0x2d6/0x3c0
[  290.772740][ T4591]  ? __x64_sys_mount+0xc0/0xc0
[  290.777502][ T4591]  ? lockdep_hardirqs_on+0x94/0x140
[  290.782680][ T4591]  ? __x64_sys_mount+0x1c/0xc0
[  290.787420][ T4591]  do_syscall_64+0x4c/0xa0
[  290.791817][ T4591]  ? clear_bhb_loop+0x30/0x80
[  290.796479][ T4591]  ? clear_bhb_loop+0x30/0x80
[  290.801144][ T4591]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  290.807015][ T4591] RIP: 0033:0x7f2a4ca7feea
[  290.811408][ T4591] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  290.830999][ T4591] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  290.839409][ T4591] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  290.847359][ T4591] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  290.855309][ T4591] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  290.863261][ T4591] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  290.871216][ T4591] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  290.879456][ T4591]  </TASK>
[  290.890447][ T4591] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  290.903915][ T4591] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  291.249801][ T4592] loop1: detected capacity change from 0 to 32768
[  291.300260][ T4592] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  291.307911][ T4592] CPU: 0 PID: 4592 Comm: syz.1.209 Not tainted syzkaller #0
[  291.315211][ T4592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  291.325279][ T4592] Call Trace:
[  291.328570][ T4592]  <TASK>
[  291.331514][ T4592]  dump_stack_lvl+0x168/0x230
[  291.336210][ T4592]  ? show_regs_print_info+0x20/0x20
[  291.341420][ T4592]  ? load_image+0x3b0/0x3b0
[  291.345947][ T4592]  sysfs_create_dir_ns+0x252/0x280
[  291.351073][ T4592]  ? __lock_acquire+0x7c60/0x7c60
[  291.356112][ T4592]  ? sysfs_warn_dup+0xa0/0xa0
[  291.360813][ T4592]  ? do_raw_spin_unlock+0x11d/0x230
[  291.366027][ T4592]  kobject_add_internal+0x662/0xd00
[  291.371335][ T4592]  kobject_init_and_add+0x122/0x190
[  291.376555][ T4592]  ? lockdep_softirqs_off+0x420/0x420
[  291.381951][ T4592]  ? kobject_add+0x210/0x210
[  291.386559][ T4592]  ? __init_swait_queue_head+0xa5/0x150
[  291.392121][ T4592]  gfs2_sys_fs_add+0x234/0x480
[  291.396872][ T4592]  ? gfs2_recover_set+0x240/0x240
[  291.401893][ T4592]  ? snprintf+0xd7/0x120
[  291.406137][ T4592]  ? __free_pages+0x95/0x1a0
[  291.410726][ T4592]  ? vscnprintf+0x80/0x80
[  291.415054][ T4592]  gfs2_fill_super+0x128d/0x1f50
[  291.419985][ T4592]  ? gfs2_reconfigure+0xcd0/0xcd0
[  291.424994][ T4592]  ? preempt_count_add+0x8d/0x190
[  291.430020][ T4592]  ? sb_set_blocksize+0xa5/0xe0
[  291.434855][ T4592]  get_tree_bdev+0x3f1/0x610
[  291.439438][ T4592]  ? gfs2_reconfigure+0xcd0/0xcd0
[  291.444447][ T4592]  gfs2_get_tree+0x4d/0x1e0
[  291.448939][ T4592]  vfs_get_tree+0x88/0x270
[  291.453367][ T4592]  do_new_mount+0x24a/0xa40
[  291.457915][ T4592]  __se_sys_mount+0x2d6/0x3c0
[  291.462589][ T4592]  ? __x64_sys_mount+0xc0/0xc0
[  291.467356][ T4592]  ? lockdep_hardirqs_on+0x94/0x140
[  291.472537][ T4592]  ? __x64_sys_mount+0x1c/0xc0
[  291.477282][ T4592]  do_syscall_64+0x4c/0xa0
[  291.481683][ T4592]  ? clear_bhb_loop+0x30/0x80
[  291.486359][ T4592]  ? clear_bhb_loop+0x30/0x80
[  291.491025][ T4592]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  291.496917][ T4592] RIP: 0033:0x7f2a4ca7feea
[  291.501325][ T4592] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  291.520943][ T4592] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  291.529350][ T4592] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  291.537318][ T4592] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  291.545279][ T4592] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  291.553240][ T4592] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  291.561291][ T4592] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  291.569270][ T4592]  </TASK>
[  291.574893][ T4592] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  291.588132][ T4592] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/06 05:51:37 executed programs: 195
[  291.932973][ T4593] loop1: detected capacity change from 0 to 32768
[  291.975963][ T4593] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  291.983964][ T4593] CPU: 1 PID: 4593 Comm: syz.1.210 Not tainted syzkaller #0
[  291.991272][ T4593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  292.001335][ T4593] Call Trace:
[  292.004621][ T4593]  <TASK>
[  292.007553][ T4593]  dump_stack_lvl+0x168/0x230
[  292.012247][ T4593]  ? show_regs_print_info+0x20/0x20
[  292.017451][ T4593]  ? load_image+0x3b0/0x3b0
[  292.021981][ T4593]  sysfs_create_dir_ns+0x252/0x280
[  292.027104][ T4593]  ? __lock_acquire+0x7c60/0x7c60
[  292.032139][ T4593]  ? sysfs_warn_dup+0xa0/0xa0
[  292.036830][ T4593]  ? do_raw_spin_unlock+0x11d/0x230
[  292.042039][ T4593]  kobject_add_internal+0x662/0xd00
[  292.047259][ T4593]  kobject_init_and_add+0x122/0x190
[  292.052469][ T4593]  ? lockdep_softirqs_off+0x420/0x420
[  292.057851][ T4593]  ? kobject_add+0x210/0x210
[  292.062437][ T4593]  ? __init_swait_queue_head+0xa5/0x150
[  292.067984][ T4593]  gfs2_sys_fs_add+0x234/0x480
[  292.072750][ T4593]  ? gfs2_recover_set+0x240/0x240
[  292.077872][ T4593]  ? snprintf+0xd7/0x120
[  292.082107][ T4593]  ? __free_pages+0x95/0x1a0
[  292.086692][ T4593]  ? vscnprintf+0x80/0x80
[  292.091023][ T4593]  gfs2_fill_super+0x128d/0x1f50
[  292.095962][ T4593]  ? gfs2_reconfigure+0xcd0/0xcd0
[  292.100970][ T4593]  ? preempt_count_add+0x8d/0x190
[  292.105987][ T4593]  ? sb_set_blocksize+0xa5/0xe0
[  292.110822][ T4593]  get_tree_bdev+0x3f1/0x610
[  292.115393][ T4593]  ? gfs2_reconfigure+0xcd0/0xcd0
[  292.120398][ T4593]  gfs2_get_tree+0x4d/0x1e0
[  292.124881][ T4593]  vfs_get_tree+0x88/0x270
[  292.129279][ T4593]  do_new_mount+0x24a/0xa40
[  292.133854][ T4593]  __se_sys_mount+0x2d6/0x3c0
[  292.138513][ T4593]  ? __x64_sys_mount+0xc0/0xc0
[  292.143258][ T4593]  ? lockdep_hardirqs_on+0x94/0x140
[  292.148439][ T4593]  ? __x64_sys_mount+0x1c/0xc0
[  292.153183][ T4593]  do_syscall_64+0x4c/0xa0
[  292.157584][ T4593]  ? clear_bhb_loop+0x30/0x80
[  292.162241][ T4593]  ? clear_bhb_loop+0x30/0x80
[  292.166901][ T4593]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  292.172774][ T4593] RIP: 0033:0x7f2a4ca7feea
[  292.177173][ T4593] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  292.196760][ T4593] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  292.205166][ T4593] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  292.213121][ T4593] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  292.221071][ T4593] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  292.229110][ T4593] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  292.237067][ T4593] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  292.245030][ T4593]  </TASK>
[  292.249866][ T4593] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  292.263206][ T4593] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  292.594304][ T4594] loop1: detected capacity change from 0 to 32768
[  292.642650][ T4594] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  292.650056][ T4594] CPU: 1 PID: 4594 Comm: syz.1.211 Not tainted syzkaller #0
[  292.657448][ T4594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  292.667546][ T4594] Call Trace:
[  292.670830][ T4594]  <TASK>
[  292.673765][ T4594]  dump_stack_lvl+0x168/0x230
[  292.678458][ T4594]  ? show_regs_print_info+0x20/0x20
[  292.683666][ T4594]  ? load_image+0x3b0/0x3b0
[  292.688209][ T4594]  sysfs_create_dir_ns+0x252/0x280
[  292.693328][ T4594]  ? __lock_acquire+0x7c60/0x7c60
[  292.698359][ T4594]  ? sysfs_warn_dup+0xa0/0xa0
[  292.703046][ T4594]  ? do_raw_spin_unlock+0x11d/0x230
[  292.708253][ T4594]  kobject_add_internal+0x662/0xd00
[  292.713468][ T4594]  kobject_init_and_add+0x122/0x190
[  292.718677][ T4594]  ? lockdep_softirqs_off+0x420/0x420
[  292.724034][ T4594]  ? kobject_add+0x210/0x210
[  292.728604][ T4594]  ? __init_swait_queue_head+0xa5/0x150
[  292.734152][ T4594]  gfs2_sys_fs_add+0x234/0x480
[  292.739092][ T4594]  ? gfs2_recover_set+0x240/0x240
[  292.744097][ T4594]  ? snprintf+0xd7/0x120
[  292.748318][ T4594]  ? __free_pages+0x95/0x1a0
[  292.752890][ T4594]  ? vscnprintf+0x80/0x80
[  292.757204][ T4594]  gfs2_fill_super+0x128d/0x1f50
[  292.762128][ T4594]  ? gfs2_reconfigure+0xcd0/0xcd0
[  292.767132][ T4594]  ? preempt_count_add+0x8d/0x190
[  292.772141][ T4594]  ? sb_set_blocksize+0xa5/0xe0
[  292.776971][ T4594]  get_tree_bdev+0x3f1/0x610
[  292.781540][ T4594]  ? gfs2_reconfigure+0xcd0/0xcd0
[  292.786541][ T4594]  gfs2_get_tree+0x4d/0x1e0
[  292.791031][ T4594]  vfs_get_tree+0x88/0x270
[  292.795429][ T4594]  do_new_mount+0x24a/0xa40
[  292.799910][ T4594]  __se_sys_mount+0x2d6/0x3c0
[  292.804565][ T4594]  ? __x64_sys_mount+0xc0/0xc0
[  292.809311][ T4594]  ? lockdep_hardirqs_on+0x94/0x140
[  292.814487][ T4594]  ? __x64_sys_mount+0x1c/0xc0
[  292.819230][ T4594]  do_syscall_64+0x4c/0xa0
[  292.823621][ T4594]  ? clear_bhb_loop+0x30/0x80
[  292.828274][ T4594]  ? clear_bhb_loop+0x30/0x80
[  292.832931][ T4594]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  292.838802][ T4594] RIP: 0033:0x7f2a4ca7feea
[  292.843199][ T4594] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  292.862789][ T4594] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  292.871186][ T4594] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  292.879138][ T4594] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  292.887094][ T4594] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  292.895043][ T4594] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  292.903000][ T4594] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  292.910971][ T4594]  </TASK>
[  292.915966][ T4594] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  292.929132][ T4594] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  293.278428][ T4595] loop1: detected capacity change from 0 to 32768
[  293.333106][ T4595] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  293.340510][ T4595] CPU: 0 PID: 4595 Comm: syz.1.212 Not tainted syzkaller #0
[  293.347801][ T4595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  293.357866][ T4595] Call Trace:
[  293.361151][ T4595]  <TASK>
[  293.364087][ T4595]  dump_stack_lvl+0x168/0x230
[  293.368775][ T4595]  ? show_regs_print_info+0x20/0x20
[  293.373982][ T4595]  ? load_image+0x3b0/0x3b0
[  293.378510][ T4595]  sysfs_create_dir_ns+0x252/0x280
[  293.383637][ T4595]  ? __lock_acquire+0x7c60/0x7c60
[  293.388672][ T4595]  ? sysfs_warn_dup+0xa0/0xa0
[  293.393365][ T4595]  ? do_raw_spin_unlock+0x11d/0x230
[  293.398579][ T4595]  kobject_add_internal+0x662/0xd00
[  293.403795][ T4595]  kobject_init_and_add+0x122/0x190
[  293.408999][ T4595]  ? lockdep_softirqs_off+0x420/0x420
[  293.414377][ T4595]  ? kobject_add+0x210/0x210
[  293.418963][ T4595]  ? __init_swait_queue_head+0xa5/0x150
[  293.424489][ T4595]  gfs2_sys_fs_add+0x234/0x480
[  293.429234][ T4595]  ? gfs2_recover_set+0x240/0x240
[  293.434238][ T4595]  ? snprintf+0xd7/0x120
[  293.438456][ T4595]  ? __free_pages+0x95/0x1a0
[  293.443026][ T4595]  ? vscnprintf+0x80/0x80
[  293.447340][ T4595]  gfs2_fill_super+0x128d/0x1f50
[  293.452265][ T4595]  ? gfs2_reconfigure+0xcd0/0xcd0
[  293.457278][ T4595]  ? preempt_count_add+0x8d/0x190
[  293.462313][ T4595]  ? sb_set_blocksize+0xa5/0xe0
[  293.467154][ T4595]  get_tree_bdev+0x3f1/0x610
[  293.471730][ T4595]  ? gfs2_reconfigure+0xcd0/0xcd0
[  293.476738][ T4595]  gfs2_get_tree+0x4d/0x1e0
[  293.481224][ T4595]  vfs_get_tree+0x88/0x270
[  293.485622][ T4595]  do_new_mount+0x24a/0xa40
[  293.490106][ T4595]  __se_sys_mount+0x2d6/0x3c0
[  293.494771][ T4595]  ? __x64_sys_mount+0xc0/0xc0
[  293.499526][ T4595]  ? lockdep_hardirqs_on+0x94/0x140
[  293.504720][ T4595]  ? __x64_sys_mount+0x1c/0xc0
[  293.509469][ T4595]  do_syscall_64+0x4c/0xa0
[  293.513870][ T4595]  ? clear_bhb_loop+0x30/0x80
[  293.518532][ T4595]  ? clear_bhb_loop+0x30/0x80
[  293.523194][ T4595]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  293.529074][ T4595] RIP: 0033:0x7f2a4ca7feea
[  293.533470][ T4595] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  293.553056][ T4595] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  293.561452][ T4595] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  293.569406][ T4595] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  293.577362][ T4595] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  293.585327][ T4595] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  293.593288][ T4595] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  293.601254][ T4595]  </TASK>
[  293.604726][ T4595] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  293.617980][ T4595] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  293.945837][ T4596] loop1: detected capacity change from 0 to 32768
[  293.963284][ T4596] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  293.971238][ T4596] CPU: 1 PID: 4596 Comm: syz.1.213 Not tainted syzkaller #0
[  293.978541][ T4596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  293.988600][ T4596] Call Trace:
[  293.991882][ T4596]  <TASK>
[  293.994813][ T4596]  dump_stack_lvl+0x168/0x230
[  293.999498][ T4596]  ? show_regs_print_info+0x20/0x20
[  294.004700][ T4596]  ? load_image+0x3b0/0x3b0
[  294.009225][ T4596]  sysfs_create_dir_ns+0x252/0x280
[  294.014353][ T4596]  ? __lock_acquire+0x7c60/0x7c60
[  294.019381][ T4596]  ? sysfs_warn_dup+0xa0/0xa0
[  294.024076][ T4596]  ? do_raw_spin_unlock+0x11d/0x230
[  294.029293][ T4596]  kobject_add_internal+0x662/0xd00
[  294.034563][ T4596]  kobject_init_and_add+0x122/0x190
[  294.039763][ T4596]  ? lockdep_softirqs_off+0x420/0x420
[  294.045143][ T4596]  ? kobject_add+0x210/0x210
[  294.049737][ T4596]  ? __init_swait_queue_head+0xa5/0x150
[  294.055279][ T4596]  gfs2_sys_fs_add+0x234/0x480
[  294.060024][ T4596]  ? gfs2_recover_set+0x240/0x240
[  294.065024][ T4596]  ? snprintf+0xd7/0x120
[  294.069248][ T4596]  ? __free_pages+0x95/0x1a0
[  294.073821][ T4596]  ? vscnprintf+0x80/0x80
[  294.078144][ T4596]  gfs2_fill_super+0x128d/0x1f50
[  294.083080][ T4596]  ? gfs2_reconfigure+0xcd0/0xcd0
[  294.088175][ T4596]  ? preempt_count_add+0x8d/0x190
[  294.093469][ T4596]  ? sb_set_blocksize+0xa5/0xe0
[  294.098309][ T4596]  get_tree_bdev+0x3f1/0x610
[  294.102884][ T4596]  ? gfs2_reconfigure+0xcd0/0xcd0
[  294.107883][ T4596]  gfs2_get_tree+0x4d/0x1e0
[  294.112460][ T4596]  vfs_get_tree+0x88/0x270
[  294.116867][ T4596]  do_new_mount+0x24a/0xa40
[  294.121363][ T4596]  __se_sys_mount+0x2d6/0x3c0
[  294.126035][ T4596]  ? __x64_sys_mount+0xc0/0xc0
[  294.130792][ T4596]  ? lockdep_hardirqs_on+0x94/0x140
[  294.135981][ T4596]  ? __x64_sys_mount+0x1c/0xc0
[  294.140732][ T4596]  do_syscall_64+0x4c/0xa0
[  294.145128][ T4596]  ? clear_bhb_loop+0x30/0x80
[  294.149786][ T4596]  ? clear_bhb_loop+0x30/0x80
[  294.154446][ T4596]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  294.160326][ T4596] RIP: 0033:0x7f2a4ca7feea
[  294.164728][ T4596] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  294.184321][ T4596] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  294.192721][ T4596] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  294.200672][ T4596] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  294.208622][ T4596] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  294.216579][ T4596] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  294.224534][ T4596] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  294.232508][ T4596]  </TASK>
[  294.237732][ T4596] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  294.250900][ T4596] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  294.573836][ T4597] loop1: detected capacity change from 0 to 32768
[  294.617541][ T4597] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  294.625066][ T4597] CPU: 0 PID: 4597 Comm: syz.1.214 Not tainted syzkaller #0
[  294.632364][ T4597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  294.642429][ T4597] Call Trace:
[  294.645717][ T4597]  <TASK>
[  294.648650][ T4597]  dump_stack_lvl+0x168/0x230
[  294.653347][ T4597]  ? show_regs_print_info+0x20/0x20
[  294.658554][ T4597]  ? load_image+0x3b0/0x3b0
[  294.663078][ T4597]  sysfs_create_dir_ns+0x252/0x280
[  294.668387][ T4597]  ? __lock_acquire+0x7c60/0x7c60
[  294.673426][ T4597]  ? sysfs_warn_dup+0xa0/0xa0
[  294.678126][ T4597]  ? do_raw_spin_unlock+0x11d/0x230
[  294.683340][ T4597]  kobject_add_internal+0x662/0xd00
[  294.688554][ T4597]  kobject_init_and_add+0x122/0x190
[  294.693764][ T4597]  ? lockdep_softirqs_off+0x420/0x420
[  294.699152][ T4597]  ? kobject_add+0x210/0x210
[  294.703758][ T4597]  ? __init_swait_queue_head+0xa5/0x150
[  294.709315][ T4597]  gfs2_sys_fs_add+0x234/0x480
[  294.714165][ T4597]  ? gfs2_recover_set+0x240/0x240
[  294.719170][ T4597]  ? snprintf+0xd7/0x120
[  294.723401][ T4597]  ? __free_pages+0x95/0x1a0
[  294.727974][ T4597]  ? vscnprintf+0x80/0x80
[  294.732301][ T4597]  gfs2_fill_super+0x128d/0x1f50
[  294.737227][ T4597]  ? gfs2_reconfigure+0xcd0/0xcd0
[  294.742237][ T4597]  ? preempt_count_add+0x8d/0x190
[  294.747271][ T4597]  ? sb_set_blocksize+0xa5/0xe0
[  294.752104][ T4597]  get_tree_bdev+0x3f1/0x610
[  294.756678][ T4597]  ? gfs2_reconfigure+0xcd0/0xcd0
[  294.761688][ T4597]  gfs2_get_tree+0x4d/0x1e0
[  294.766189][ T4597]  vfs_get_tree+0x88/0x270
[  294.770620][ T4597]  do_new_mount+0x24a/0xa40
[  294.775107][ T4597]  __se_sys_mount+0x2d6/0x3c0
[  294.779766][ T4597]  ? __x64_sys_mount+0xc0/0xc0
[  294.784509][ T4597]  ? lockdep_hardirqs_on+0x94/0x140
[  294.789695][ T4597]  ? __x64_sys_mount+0x1c/0xc0
[  294.794449][ T4597]  do_syscall_64+0x4c/0xa0
[  294.798845][ T4597]  ? clear_bhb_loop+0x30/0x80
[  294.803500][ T4597]  ? clear_bhb_loop+0x30/0x80
[  294.808158][ T4597]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  294.814031][ T4597] RIP: 0033:0x7f2a4ca7feea
[  294.818427][ T4597] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  294.838012][ T4597] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  294.846415][ T4597] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  294.854374][ T4597] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  294.862338][ T4597] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  294.870315][ T4597] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  294.878275][ T4597] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  294.886241][ T4597]  </TASK>
[  294.890014][ T4597] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  294.903514][ T4597] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  295.226954][ T4598] loop1: detected capacity change from 0 to 32768
[  295.282157][ T4598] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  295.289569][ T4598] CPU: 0 PID: 4598 Comm: syz.1.215 Not tainted syzkaller #0
[  295.296864][ T4598] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  295.306928][ T4598] Call Trace:
[  295.310215][ T4598]  <TASK>
[  295.313150][ T4598]  dump_stack_lvl+0x168/0x230
[  295.317944][ T4598]  ? show_regs_print_info+0x20/0x20
[  295.323158][ T4598]  ? load_image+0x3b0/0x3b0
[  295.327684][ T4598]  sysfs_create_dir_ns+0x252/0x280
[  295.332816][ T4598]  ? __lock_acquire+0x7c60/0x7c60
[  295.338200][ T4598]  ? sysfs_warn_dup+0xa0/0xa0
[  295.342891][ T4598]  ? do_raw_spin_unlock+0x11d/0x230
[  295.348111][ T4598]  kobject_add_internal+0x662/0xd00
[  295.353327][ T4598]  kobject_init_and_add+0x122/0x190
[  295.358532][ T4598]  ? lockdep_softirqs_off+0x420/0x420
[  295.363903][ T4598]  ? kobject_add+0x210/0x210
[  295.368480][ T4598]  ? __init_swait_queue_head+0xa5/0x150
[  295.374019][ T4598]  gfs2_sys_fs_add+0x234/0x480
[  295.378769][ T4598]  ? gfs2_recover_set+0x240/0x240
[  295.383774][ T4598]  ? snprintf+0xd7/0x120
[  295.387998][ T4598]  ? __free_pages+0x95/0x1a0
[  295.392583][ T4598]  ? vscnprintf+0x80/0x80
[  295.396902][ T4598]  gfs2_fill_super+0x128d/0x1f50
[  295.401832][ T4598]  ? gfs2_reconfigure+0xcd0/0xcd0
[  295.406843][ T4598]  ? preempt_count_add+0x8d/0x190
[  295.412045][ T4598]  ? sb_set_blocksize+0xa5/0xe0
[  295.416888][ T4598]  get_tree_bdev+0x3f1/0x610
[  295.421465][ T4598]  ? gfs2_reconfigure+0xcd0/0xcd0
[  295.426471][ T4598]  gfs2_get_tree+0x4d/0x1e0
[  295.430957][ T4598]  vfs_get_tree+0x88/0x270
[  295.435356][ T4598]  do_new_mount+0x24a/0xa40
[  295.439843][ T4598]  __se_sys_mount+0x2d6/0x3c0
[  295.444504][ T4598]  ? __x64_sys_mount+0xc0/0xc0
[  295.449253][ T4598]  ? lockdep_hardirqs_on+0x94/0x140
[  295.454442][ T4598]  ? __x64_sys_mount+0x1c/0xc0
[  295.459189][ T4598]  do_syscall_64+0x4c/0xa0
[  295.463592][ T4598]  ? clear_bhb_loop+0x30/0x80
[  295.468253][ T4598]  ? clear_bhb_loop+0x30/0x80
[  295.472909][ T4598]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  295.478782][ T4598] RIP: 0033:0x7f2a4ca7feea
[  295.483188][ T4598] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  295.502865][ T4598] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  295.511282][ T4598] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  295.519258][ T4598] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  295.527210][ T4598] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  295.535163][ T4598] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  295.543117][ T4598] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  295.551091][ T4598]  </TASK>
[  295.554642][ T4598] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  295.567839][ T4598] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  295.879872][ T4599] loop1: detected capacity change from 0 to 32768
[  295.921296][ T4599] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  295.928729][ T4599] CPU: 1 PID: 4599 Comm: syz.1.216 Not tainted syzkaller #0
[  295.936028][ T4599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  295.946093][ T4599] Call Trace:
[  295.949382][ T4599]  <TASK>
[  295.952313][ T4599]  dump_stack_lvl+0x168/0x230
[  295.957004][ T4599]  ? show_regs_print_info+0x20/0x20
[  295.962217][ T4599]  ? load_image+0x3b0/0x3b0
[  295.966745][ T4599]  sysfs_create_dir_ns+0x252/0x280
[  295.971869][ T4599]  ? __lock_acquire+0x7c60/0x7c60
[  295.976906][ T4599]  ? sysfs_warn_dup+0xa0/0xa0
[  295.981690][ T4599]  ? do_raw_spin_unlock+0x11d/0x230
[  295.986902][ T4599]  kobject_add_internal+0x662/0xd00
[  295.992115][ T4599]  kobject_init_and_add+0x122/0x190
[  295.997322][ T4599]  ? lockdep_softirqs_off+0x420/0x420
[  296.002698][ T4599]  ? kobject_add+0x210/0x210
[  296.007282][ T4599]  ? __init_swait_queue_head+0xa5/0x150
[  296.012813][ T4599]  gfs2_sys_fs_add+0x234/0x480
[  296.017564][ T4599]  ? gfs2_recover_set+0x240/0x240
[  296.022574][ T4599]  ? snprintf+0xd7/0x120
[  296.026808][ T4599]  ? __free_pages+0x95/0x1a0
[  296.031404][ T4599]  ? vscnprintf+0x80/0x80
[  296.035737][ T4599]  gfs2_fill_super+0x128d/0x1f50
[  296.040663][ T4599]  ? gfs2_reconfigure+0xcd0/0xcd0
[  296.045671][ T4599]  ? preempt_count_add+0x8d/0x190
[  296.050685][ T4599]  ? sb_set_blocksize+0xa5/0xe0
[  296.055521][ T4599]  get_tree_bdev+0x3f1/0x610
[  296.060096][ T4599]  ? gfs2_reconfigure+0xcd0/0xcd0
[  296.065103][ T4599]  gfs2_get_tree+0x4d/0x1e0
[  296.069594][ T4599]  vfs_get_tree+0x88/0x270
[  296.073997][ T4599]  do_new_mount+0x24a/0xa40
[  296.078495][ T4599]  __se_sys_mount+0x2d6/0x3c0
[  296.083159][ T4599]  ? __x64_sys_mount+0xc0/0xc0
[  296.087920][ T4599]  ? lockdep_hardirqs_on+0x94/0x140
[  296.093100][ T4599]  ? __x64_sys_mount+0x1c/0xc0
[  296.097845][ T4599]  do_syscall_64+0x4c/0xa0
[  296.102244][ T4599]  ? clear_bhb_loop+0x30/0x80
[  296.106921][ T4599]  ? clear_bhb_loop+0x30/0x80
[  296.111599][ T4599]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  296.117500][ T4599] RIP: 0033:0x7f2a4ca7feea
[  296.121912][ T4599] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  296.141530][ T4599] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  296.149952][ T4599] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  296.157928][ T4599] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  296.165887][ T4599] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  296.173844][ T4599] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  296.181806][ T4599] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  296.189788][ T4599]  </TASK>
[  296.194663][ T4599] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  296.207821][ T4599] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  296.524074][ T4600] loop1: detected capacity change from 0 to 32768
[  296.570806][ T4600] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  296.578345][ T4600] CPU: 0 PID: 4600 Comm: syz.1.217 Not tainted syzkaller #0
[  296.585730][ T4600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  296.595798][ T4600] Call Trace:
[  296.599089][ T4600]  <TASK>
[  296.602042][ T4600]  dump_stack_lvl+0x168/0x230
[  296.606737][ T4600]  ? show_regs_print_info+0x20/0x20
[  296.611946][ T4600]  ? load_image+0x3b0/0x3b0
[  296.616475][ T4600]  sysfs_create_dir_ns+0x252/0x280
[  296.621607][ T4600]  ? __lock_acquire+0x7c60/0x7c60
[  296.626644][ T4600]  ? sysfs_warn_dup+0xa0/0xa0
[  296.631338][ T4600]  ? do_raw_spin_unlock+0x11d/0x230
[  296.636547][ T4600]  kobject_add_internal+0x662/0xd00
[  296.641759][ T4600]  kobject_init_and_add+0x122/0x190
[  296.646960][ T4600]  ? lockdep_softirqs_off+0x420/0x420
[  296.652341][ T4600]  ? kobject_add+0x210/0x210
[  296.656942][ T4600]  ? __init_swait_queue_head+0xa5/0x150
[  296.662505][ T4600]  gfs2_sys_fs_add+0x234/0x480
[  296.667272][ T4600]  ? gfs2_recover_set+0x240/0x240
[  296.672290][ T4600]  ? snprintf+0xd7/0x120
[  296.676512][ T4600]  ? __free_pages+0x95/0x1a0
[  296.681092][ T4600]  ? vscnprintf+0x80/0x80
[  296.685420][ T4600]  gfs2_fill_super+0x128d/0x1f50
[  296.690349][ T4600]  ? gfs2_reconfigure+0xcd0/0xcd0
[  296.695353][ T4600]  ? preempt_count_add+0x8d/0x190
[  296.700365][ T4600]  ? sb_set_blocksize+0xa5/0xe0
[  296.705198][ T4600]  get_tree_bdev+0x3f1/0x610
[  296.709777][ T4600]  ? gfs2_reconfigure+0xcd0/0xcd0
[  296.714782][ T4600]  gfs2_get_tree+0x4d/0x1e0
[  296.719279][ T4600]  vfs_get_tree+0x88/0x270
[  296.723690][ T4600]  do_new_mount+0x24a/0xa40
[  296.728187][ T4600]  __se_sys_mount+0x2d6/0x3c0
[  296.732858][ T4600]  ? __x64_sys_mount+0xc0/0xc0
[  296.737642][ T4600]  ? lockdep_hardirqs_on+0x94/0x140
[  296.742825][ T4600]  ? __x64_sys_mount+0x1c/0xc0
[  296.747587][ T4600]  do_syscall_64+0x4c/0xa0
[  296.751988][ T4600]  ? clear_bhb_loop+0x30/0x80
[  296.756668][ T4600]  ? clear_bhb_loop+0x30/0x80
[  296.761513][ T4600]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  296.767405][ T4600] RIP: 0033:0x7f2a4ca7feea
[  296.771804][ T4600] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  296.791392][ T4600] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  296.799798][ T4600] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  296.807753][ T4600] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  296.815706][ T4600] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  296.823663][ T4600] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  296.831613][ T4600] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  296.839576][ T4600]  </TASK>
[  296.843459][ T4600] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  296.856621][ T4600] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/06 05:51:42 executed programs: 203
[  297.179123][ T4601] loop1: detected capacity change from 0 to 32768
[  297.273029][ T4601] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  297.280589][ T4601] CPU: 1 PID: 4601 Comm: syz.1.218 Not tainted syzkaller #0
[  297.287884][ T4601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  297.297947][ T4601] Call Trace:
[  297.301242][ T4601]  <TASK>
[  297.304197][ T4601]  dump_stack_lvl+0x168/0x230
[  297.308890][ T4601]  ? show_regs_print_info+0x20/0x20
[  297.314103][ T4601]  ? load_image+0x3b0/0x3b0
[  297.318630][ T4601]  sysfs_create_dir_ns+0x252/0x280
[  297.323764][ T4601]  ? __lock_acquire+0x7c60/0x7c60
[  297.328786][ T4601]  ? sysfs_warn_dup+0xa0/0xa0
[  297.333458][ T4601]  ? do_raw_spin_unlock+0x11d/0x230
[  297.338658][ T4601]  kobject_add_internal+0x662/0xd00
[  297.343849][ T4601]  kobject_init_and_add+0x122/0x190
[  297.349029][ T4601]  ? lockdep_softirqs_off+0x420/0x420
[  297.354394][ T4601]  ? kobject_add+0x210/0x210
[  297.358968][ T4601]  ? __init_swait_queue_head+0xa5/0x150
[  297.364647][ T4601]  gfs2_sys_fs_add+0x234/0x480
[  297.369410][ T4601]  ? gfs2_recover_set+0x240/0x240
[  297.374439][ T4601]  ? snprintf+0xd7/0x120
[  297.378673][ T4601]  ? __free_pages+0x95/0x1a0
[  297.383259][ T4601]  ? vscnprintf+0x80/0x80
[  297.387580][ T4601]  gfs2_fill_super+0x128d/0x1f50
[  297.392507][ T4601]  ? gfs2_reconfigure+0xcd0/0xcd0
[  297.397517][ T4601]  ? preempt_count_add+0x8d/0x190
[  297.402540][ T4601]  ? sb_set_blocksize+0xa5/0xe0
[  297.407377][ T4601]  get_tree_bdev+0x3f1/0x610
[  297.411950][ T4601]  ? gfs2_reconfigure+0xcd0/0xcd0
[  297.416962][ T4601]  gfs2_get_tree+0x4d/0x1e0
[  297.421449][ T4601]  vfs_get_tree+0x88/0x270
[  297.425850][ T4601]  do_new_mount+0x24a/0xa40
[  297.430336][ T4601]  __se_sys_mount+0x2d6/0x3c0
[  297.434999][ T4601]  ? __x64_sys_mount+0xc0/0xc0
[  297.439746][ T4601]  ? lockdep_hardirqs_on+0x94/0x140
[  297.444977][ T4601]  ? __x64_sys_mount+0x1c/0xc0
[  297.449723][ T4601]  do_syscall_64+0x4c/0xa0
[  297.454124][ T4601]  ? clear_bhb_loop+0x30/0x80
[  297.458858][ T4601]  ? clear_bhb_loop+0x30/0x80
[  297.463516][ T4601]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  297.469392][ T4601] RIP: 0033:0x7f2a4ca7feea
[  297.473790][ T4601] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  297.493379][ T4601] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  297.501780][ T4601] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  297.509740][ T4601] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  297.517689][ T4601] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  297.525640][ T4601] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  297.533593][ T4601] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  297.541554][ T4601]  </TASK>
[  297.546361][ T4601] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  297.559771][ T4601] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  297.913249][ T4602] loop1: detected capacity change from 0 to 32768
[  297.960147][ T4602] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  297.968045][ T4602] CPU: 1 PID: 4602 Comm: syz.1.219 Not tainted syzkaller #0
[  297.975356][ T4602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  297.985479][ T4602] Call Trace:
[  297.988768][ T4602]  <TASK>
[  297.991701][ T4602]  dump_stack_lvl+0x168/0x230
[  297.996390][ T4602]  ? show_regs_print_info+0x20/0x20
[  298.001600][ T4602]  ? load_image+0x3b0/0x3b0
[  298.006126][ T4602]  sysfs_create_dir_ns+0x252/0x280
[  298.011247][ T4602]  ? __lock_acquire+0x7c60/0x7c60
[  298.016277][ T4602]  ? sysfs_warn_dup+0xa0/0xa0
[  298.020964][ T4602]  ? do_raw_spin_unlock+0x11d/0x230
[  298.026174][ T4602]  kobject_add_internal+0x662/0xd00
[  298.031385][ T4602]  kobject_init_and_add+0x122/0x190
[  298.036584][ T4602]  ? lockdep_softirqs_off+0x420/0x420
[  298.041942][ T4602]  ? kobject_add+0x210/0x210
[  298.046515][ T4602]  ? __init_swait_queue_head+0xa5/0x150
[  298.052051][ T4602]  gfs2_sys_fs_add+0x234/0x480
[  298.056793][ T4602]  ? gfs2_recover_set+0x240/0x240
[  298.061798][ T4602]  ? snprintf+0xd7/0x120
[  298.066024][ T4602]  ? __free_pages+0x95/0x1a0
[  298.070595][ T4602]  ? vscnprintf+0x80/0x80
[  298.074918][ T4602]  gfs2_fill_super+0x128d/0x1f50
[  298.079852][ T4602]  ? gfs2_reconfigure+0xcd0/0xcd0
[  298.084855][ T4602]  ? preempt_count_add+0x8d/0x190
[  298.089865][ T4602]  ? sb_set_blocksize+0xa5/0xe0
[  298.094700][ T4602]  get_tree_bdev+0x3f1/0x610
[  298.099272][ T4602]  ? gfs2_reconfigure+0xcd0/0xcd0
[  298.104274][ T4602]  gfs2_get_tree+0x4d/0x1e0
[  298.108766][ T4602]  vfs_get_tree+0x88/0x270
[  298.113163][ T4602]  do_new_mount+0x24a/0xa40
[  298.117648][ T4602]  __se_sys_mount+0x2d6/0x3c0
[  298.122312][ T4602]  ? __x64_sys_mount+0xc0/0xc0
[  298.127081][ T4602]  ? lockdep_hardirqs_on+0x94/0x140
[  298.132278][ T4602]  ? __x64_sys_mount+0x1c/0xc0
[  298.137031][ T4602]  do_syscall_64+0x4c/0xa0
[  298.141434][ T4602]  ? clear_bhb_loop+0x30/0x80
[  298.146094][ T4602]  ? clear_bhb_loop+0x30/0x80
[  298.150753][ T4602]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  298.156631][ T4602] RIP: 0033:0x7f2a4ca7feea
[  298.161037][ T4602] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  298.180778][ T4602] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  298.189186][ T4602] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  298.197144][ T4602] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  298.205185][ T4602] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  298.213138][ T4602] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  298.221105][ T4602] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  298.229079][ T4602]  </TASK>
[  298.233933][ T4602] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  298.247089][ T4602] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  298.421429][   T27] INFO: task syz.0.17:4361 blocked for more than 143 seconds.
[  298.429154][   T27]       Not tainted syzkaller #0
[  298.435859][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  298.444929][   T27] task:syz.0.17        state:D stack:24208 pid: 4361 ppid:  4303 flags:0x00004004
[  298.457828][   T27] Call Trace:
[  298.461405][   T27]  <TASK>
[  298.464352][   T27]  __schedule+0x11bb/0x4390
[  298.468897][   T27]  ? release_firmware_map_entry+0x190/0x190
[  298.477972][   T27]  ? lockdep_hardirqs_on_prepare+0x3fc/0x760
[  298.484764][   T27]  ? lock_chain_count+0x20/0x20
[  298.489632][   T27]  ? _raw_spin_lock_irq+0xab/0xe0
[  298.497074][   T27]  schedule+0x11b/0x1e0
[  298.501560][   T27]  io_schedule+0x7c/0xd0
[  298.505818][   T27]  wait_on_page_bit_common+0x815/0xe00
[  298.513708][   T27]  ? wait_on_page_bit+0x50/0x50
[  298.518595][   T27]  ? rcu_lock_release+0x20/0x20
[  298.523842][   T27]  ? blk_put_request+0x20/0x20
[  298.528622][   T27]  ? __get_log_header+0x1c0/0x4f0
[  298.536092][   T27]  gfs2_jhead_process_page+0x24e/0xbc0
[  298.541854][   T27]  ? gfs2_end_log_read+0x500/0x500
[  298.546973][   T27]  ? submit_bio+0x2be/0x560
[  298.553881][   T27]  ? submit_bio_noacct+0x6d0/0x6d0
[  298.559021][   T27]  gfs2_find_jhead+0xec2/0x1000
[  298.565450][   T27]  gfs2_make_fs_rw+0x1f4/0x560
[  298.570231][   T27]  ? _raw_spin_unlock+0x24/0x40
[  298.578197][   T27]  ? gfs2_glock_nq+0xcb0/0x1550
[  298.583373][   T27]  ? gfs2_jdesc_check+0x290/0x290
[  298.588426][   T27]  gfs2_fill_super+0x188a/0x1f50
[  298.593779][   T27]  ? gfs2_reconfigure+0xcd0/0xcd0
[  298.598823][   T27]  ? gfs2_glock_nq_num+0x82/0x1b0
[  298.604298][   T27]  ? preempt_count_add+0x8d/0x190
[  298.609344][   T27]  ? gfs2_freeze_lock+0x52/0xc0
[  298.614548][   T27]  ? sb_set_blocksize+0xa5/0xe0
[  298.619415][   T27]  get_tree_bdev+0x3f1/0x610
[  298.624382][   T27]  ? gfs2_reconfigure+0xcd0/0xcd0
[  298.629421][   T27]  gfs2_get_tree+0x4d/0x1e0
[  298.634286][   T27]  vfs_get_tree+0x88/0x270
[  298.638718][   T27]  do_new_mount+0x24a/0xa40
[  298.643603][   T27]  __se_sys_mount+0x2d6/0x3c0
[  298.648302][   T27]  ? __x64_sys_mount+0xc0/0xc0
[  298.653414][   T27]  ? lockdep_hardirqs_on+0x94/0x140
[  298.658621][   T27]  ? __x64_sys_mount+0x1c/0xc0
[  298.663930][   T27]  do_syscall_64+0x4c/0xa0
[  298.668359][   T27]  ? clear_bhb_loop+0x30/0x80
[  298.674565][   T27]  ? clear_bhb_loop+0x30/0x80
[  298.679733][   T27]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  298.686028][   T27] RIP: 0033:0x7f53b0c53eea
[  298.690458][   T27] RSP: 002b:00007fff29760498 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  298.699566][   T27] RAX: ffffffffffffffda RBX: 00007fff29760520 RCX: 00007f53b0c53eea
[  298.707893][   T27] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fff297604e0
[  298.714696][ T4603] loop1: detected capacity change from 0 to 32768
[  298.716212][   T27] RBP: 0000200000000140 R08: 00007fff29760520 R09: 0000000002810000
[  298.740770][   T27] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  298.745455][ T4603] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  298.756540][ T4603] CPU: 0 PID: 4603 Comm: syz.1.220 Not tainted syzkaller #0
[  298.761114][   T27] R13: 00007fff297604e0 R14: 0000000000037fd1 R15: 00002000000001c0
[  298.763833][ T4603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  298.781840][ T4603] Call Trace:
[  298.785129][ T4603]  <TASK>
[  298.788063][ T4603]  dump_stack_lvl+0x168/0x230
[  298.792750][ T4603]  ? show_regs_print_info+0x20/0x20
[  298.793029][   T27]  </TASK>
[  298.797947][ T4603]  ? load_image+0x3b0/0x3b0
[  298.805453][ T4603]  sysfs_create_dir_ns+0x252/0x280
[  298.810331][   T27] 
[  298.810331][   T27] Showing all locks held in the system:
[  298.810584][ T4603]  ? __lock_acquire+0x7c60/0x7c60
[  298.820791][   T27] 1 lock held by khungtaskd/27:
[  298.823279][ T4603]  ? sysfs_warn_dup+0xa0/0xa0
[  298.823307][ T4603]  ? do_raw_spin_unlock+0x11d/0x230
[  298.823328][ T4603]  kobject_add_internal+0x662/0xd00
[  298.823352][ T4603]  kobject_init_and_add+0x122/0x190
[  298.823369][ T4603]  ? lockdep_softirqs_off+0x420/0x420
[  298.829348][   T27]  #0: 
[  298.832845][ T4603]  ? kobject_add+0x210/0x210
[  298.832870][ T4603]  ? __init_swait_queue_head+0xa5/0x150
[  298.832893][ T4603]  gfs2_sys_fs_add+0x234/0x480
[  298.832913][ T4603]  ? gfs2_recover_set+0x240/0x240
[  298.832930][ T4603]  ? snprintf+0xd7/0x120
[  298.832949][ T4603]  ? __free_pages+0x95/0x1a0
[  298.840197][   T27] ffffffff8c11c720
[  298.843307][ T4603]  ? vscnprintf+0x80/0x80
[  298.843338][ T4603]  gfs2_fill_super+0x128d/0x1f50
[  298.843369][ T4603]  ? gfs2_reconfigure+0xcd0/0xcd0
[  298.849546][   T27]  (
[  298.853894][ T4603]  ? preempt_count_add+0x8d/0x190
[  298.853925][ T4603]  ? sb_set_blocksize+0xa5/0xe0
[  298.853947][ T4603]  get_tree_bdev+0x3f1/0x610
[  298.853967][ T4603]  ? gfs2_reconfigure+0xcd0/0xcd0
[  298.853994][ T4603]  gfs2_get_tree+0x4d/0x1e0
[  298.854013][ T4603]  vfs_get_tree+0x88/0x270
[  298.859370][   T27] rcu_read_lock
[  298.861328][ T4603]  do_new_mount+0x24a/0xa40
[  298.861356][ T4603]  __se_sys_mount+0x2d6/0x3c0
[  298.861379][ T4603]  ? __x64_sys_mount+0xc0/0xc0
[  298.861399][ T4603]  ? lockdep_hardirqs_on+0x94/0x140
[  298.867114][   T27] ){....}-{1:2}
[  298.871662][ T4603]  ? __x64_sys_mount+0x1c/0xc0
[  298.871685][ T4603]  do_syscall_64+0x4c/0xa0
[  298.871702][ T4603]  ? clear_bhb_loop+0x30/0x80
[  298.871719][ T4603]  ? clear_bhb_loop+0x30/0x80
[  298.871737][ T4603]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  298.871755][ T4603] RIP: 0033:0x7f2a4ca7feea
[  298.879773][   T27] , at: rcu_lock_acquire+0x0/0x30
[  298.880988][ T4603] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  298.881004][ T4603] RSP: 002b:00007ffd891eb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  298.881024][ T4603] RAX: ffffffffffffffda RBX: 00007ffd891eb560 RCX: 00007f2a4ca7feea
[  298.881037][ T4603] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffd891eb520
[  298.881049][ T4603] RBP: 0000200000000140 R08: 00007ffd891eb560 R09: 0000000002810000
[  298.881061][ T4603] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[  298.886855][   T27] 2 locks held by getty/3945:
[  298.889329][ T4603] R13: 00007ffd891eb520 R14: 0000000000037fd1 R15: 00002000000001c0
[  298.897099][   T27]  #0: 
[  298.898735][ T4603]  </TASK>
[  298.904888][   T27] ffff88802bb8c098
[  298.907635][ T4603] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  298.914548][   T27]  (
[  298.931040][ T4603] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  298.966412][   T27] &tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[  299.107990][   T27]  #1: ffffc900026562e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5ba/0x1a30
[  299.118188][   T27] 1 lock held by syz.0.17/4361:
[  299.123080][   T27]  #0: ffff88807c2d20e0 (&type->s_umount_key#53/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950
[  299.133210][   T27] 1 lock held by syz-executor/4371:
[  299.138395][   T27]  #0: ffff88801f7a9918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x157/0xa60
[  299.148491][   T27] 2 locks held by udevd/4373:
[  299.153174][   T27]  #0: ffff88801f7a9918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[  299.162501][   T27]  #1: ffff88801f958468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90
[  299.171842][   T27] 
[  299.174157][   T27] =============================================
[  299.174157][   T27] 
[  299.183008][   T27] NMI backtrace for cpu 0
[  299.187328][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[  299.194505][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  299.204543][   T27] Call Trace:
[  299.207811][   T27]  <TASK>
[  299.210723][   T27]  dump_stack_lvl+0x168/0x230
[  299.215382][   T27]  ? show_regs_print_info+0x20/0x20
[  299.220557][   T27]  ? load_image+0x3b0/0x3b0
[  299.225034][   T27]  ? tick_nohz_tick_stopped+0x7b/0xb0
[  299.230385][   T27]  ? nmi_cpu_backtrace+0x1b6/0x3d0
[  299.235478][   T27]  nmi_cpu_backtrace+0x397/0x3d0
[  299.240389][   T27]  ? nmi_trigger_cpumask_backtrace+0x280/0x280
[  299.246516][   T27]  ? _printk+0xcc/0x110
[  299.250651][   T27]  ? load_image+0x3b0/0x3b0
[  299.255129][   T27]  ? load_image+0x3b0/0x3b0
[  299.259606][   T27]  ? arch_trigger_cpumask_backtrace+0x10/0x10
[  299.265647][   T27]  nmi_trigger_cpumask_backtrace+0x163/0x280
[  299.271607][   T27]  watchdog+0xe0f/0xe50
[  299.275745][   T27]  kthread+0x436/0x520
[  299.279785][   T27]  ? hungtask_pm_notify+0x40/0x40
[  299.284781][   T27]  ? kthread_blkcg+0xd0/0xd0
[  299.289347][   T27]  ret_from_fork+0x1f/0x30
[  299.293747][   T27]  </TASK>
[  299.297011][   T27] Sending NMI from CPU 0 to CPUs 1:
[  299.302482][    C1] NMI backtrace for cpu 1
[  299.302493][    C1] CPU: 1 PID: 1166 Comm: kworker/u4:3 Not tainted syzkaller #0
[  299.302509][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  299.302518][    C1] Workqueue:  0x0 (phy7)
[  299.302536][    C1] RIP: 0010:lock_acquire+0x1ca/0x3f0
[  299.302556][    C1] Code: 0b 8a e8 d9 fc 45 08 b8 ff ff ff ff 65 0f c1 05 9c 7d a6 7e 83 f8 01 0f 85 fa 00 00 00 48 c7 84 24 80 00 00 00 00 00 00 00 9c <8f> 84 24 80 00 00 00 f6 84 24 81 00 00 00 02 0f 85 f6 00 00 00 41
[  299.302568][    C1] RSP: 0018:ffffc90004a27a38 EFLAGS: 00000046
[  299.302579][    C1] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 9eb93076a52fbb00
[  299.302590][    C1] RDX: 0000000000000000 RSI: ffffffff8a0b2e80 RDI: ffffffff8a59e800
[  299.302600][    C1] RBP: ffffc90004a27b50 R08: dffffc0000000000 R09: fffffbfff1ff5419
[  299.302611][    C1] R10: fffffbfff1ff5419 R11: 1ffffffff1ff5418 R12: ffff8880b913a358
[  299.302622][    C1] R13: 1ffff92000944f54 R14: 0000000000000046 R15: dffffc0000000000
[  299.302632][    C1] FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
[  299.302645][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  299.302655][    C1] CR2: 00007fe4614a1000 CR3: 0000000023e28000 CR4: 00000000003506e0
[  299.302668][    C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  299.302677][    C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  299.302692][    C1] Call Trace:
[  299.302696][    C1]  <TASK>
[  299.302706][    C1]  ? read_lock_is_recursive+0x10/0x10
[  299.302725][    C1]  ? __rwlock_init+0x140/0x140
[  299.302740][    C1]  _raw_spin_lock_nested+0x2e/0x40
[  299.302755][    C1]  ? raw_spin_rq_lock_nested+0x26/0x140
[  299.302770][    C1]  raw_spin_rq_lock_nested+0x26/0x140
[  299.302786][    C1]  __schedule+0x2b7/0x4390
[  299.302803][    C1]  ? pwq_dec_nr_in_flight+0x1e1/0x450
[  299.302818][    C1]  ? ieee80211_check_queues+0x430/0x430
[  299.302836][    C1]  ? process_one_work+0xb1b/0x1000
[  299.302856][    C1]  ? release_firmware_map_entry+0x190/0x190
[  299.302871][    C1]  ? lock_chain_count+0x20/0x20
[  299.302886][    C1]  ? kthread_data+0x4b/0xc0
[  299.302903][    C1]  schedule+0x11b/0x1e0
[  299.302918][    C1]  worker_thread+0xf5c/0x12a0
[  299.302931][    C1]  ? _raw_spin_unlock_irqrestore+0x82/0x100
[  299.302945][    C1]  ? lockdep_hardirqs_on+0x94/0x140
[  299.302964][    C1]  ? lockdep_hardirqs_on+0x94/0x140
[  299.302979][    C1]  ? _raw_spin_unlock_irqrestore+0xaa/0x100
[  299.302997][    C1]  kthread+0x436/0x520
[  299.303009][    C1]  ? rcu_lock_release+0x20/0x20
[  299.303021][    C1]  ? kthread_blkcg+0xd0/0xd0
[  299.303034][    C1]  ret_from_fork+0x1f/0x30
[  299.303056][    C1]  </TASK>
[  299.303955][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  299.566583][   T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[  299.573789][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  299.583846][   T27] Call Trace:
[  299.587137][   T27]  <TASK>
[  299.590074][   T27]  dump_stack_lvl+0x168/0x230
[  299.594847][   T27]  ? show_regs_print_info+0x20/0x20
[  299.600173][   T27]  ? load_image+0x3b0/0x3b0
[  299.604722][   T27]  panic+0x2c9/0x7f0
[  299.608621][   T27]  ? schedule_preempt_disabled+0x20/0x20
[  299.614264][   T27]  ? bpf_jit_dump+0xd0/0xd0
[  299.618781][   T27]  ? nmi_trigger_cpumask_backtrace+0x260/0x280
[  299.624945][   T27]  watchdog+0xe4e/0xe50
[  299.629107][   T27]  kthread+0x436/0x520
[  299.633178][   T27]  ? hungtask_pm_notify+0x40/0x40
[  299.638205][   T27]  ? kthread_blkcg+0xd0/0xd0
[  299.642803][   T27]  ret_from_fork+0x1f/0x30
[  299.647240][   T27]  </TASK>
[  299.650543][   T27] Kernel Offset: disabled
[  299.654871][   T27] Rebooting in 86400 seconds..