86][ T4816] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd7103d500
[  259.444868][ T4816] RBP: 0000200000000400 R08: 00007ffd7103d540 R09: 0000000000000000
[  259.452878][ T4816] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  259.461123][ T4816] R13: 00007ffd7103d500 R14: 00000000000125ed R15: 0000200000000640
[  259.469282][ T4816]  </TASK>
[  259.473830][ T4816] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  259.488151][ T4816] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  259.610663][ T4817] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  259.619060][ T4817] CPU: 1 PID: 4817 Comm: syz.4.356 Not tainted syzkaller #0
[  259.626375][ T4817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  259.636451][ T4817] Call Trace:
[  259.639757][ T4817]  <TASK>
[  259.642701][ T4817]  dump_stack_lvl+0x168/0x230
[  259.647408][ T4817]  ? show_regs_print_info+0x20/0x20
[  259.652621][ T4817]  ? load_image+0x3b0/0x3b0
[  259.657149][ T4817]  sysfs_create_dir_ns+0x252/0x280
[  259.662290][ T4817]  ? __lock_acquire+0x7c60/0x7c60
[  259.667418][ T4817]  ? sysfs_warn_dup+0xa0/0xa0
[  259.672116][ T4817]  ? do_raw_spin_unlock+0x11d/0x230
[  259.677335][ T4817]  kobject_add_internal+0x662/0xd00
[  259.682556][ T4817]  kobject_init_and_add+0x122/0x190
[  259.687783][ T4817]  ? lockdep_softirqs_off+0x420/0x420
[  259.693184][ T4817]  ? kobject_add+0x210/0x210
[  259.697799][ T4817]  ? __init_swait_queue_head+0xa5/0x150
[  259.703371][ T4817]  gfs2_sys_fs_add+0x234/0x480
[  259.708158][ T4817]  ? gfs2_recover_set+0x240/0x240
[  259.713198][ T4817]  ? snprintf+0xd7/0x120
[  259.717465][ T4817]  ? __free_pages+0x95/0x1a0
[  259.722082][ T4817]  ? vscnprintf+0x80/0x80
[  259.726503][ T4817]  gfs2_fill_super+0x128d/0x1f50
[  259.731471][ T4817]  ? gfs2_reconfigure+0xcd0/0xcd0
[  259.736957][ T4817]  ? preempt_count_add+0x8d/0x190
[  259.742021][ T4817]  ? sb_set_blocksize+0xa5/0xe0
[  259.746892][ T4817]  get_tree_bdev+0x3f1/0x610
[  259.751504][ T4817]  ? gfs2_reconfigure+0xcd0/0xcd0
[  259.756638][ T4817]  gfs2_get_tree+0x4d/0x1e0
[  259.761253][ T4817]  vfs_get_tree+0x88/0x270
[  259.765703][ T4817]  do_new_mount+0x24a/0xa40
[  259.770238][ T4817]  __se_sys_mount+0x2d6/0x3c0
[  259.774941][ T4817]  ? __x64_sys_mount+0xc0/0xc0
[  259.779729][ T4817]  ? lockdep_hardirqs_on+0x94/0x140
[  259.784948][ T4817]  ? __x64_sys_mount+0x1c/0xc0
[  259.789736][ T4817]  do_syscall_64+0x4c/0xa0
[  259.794164][ T4817]  ? clear_bhb_loop+0x30/0x80
[  259.798882][ T4817]  ? clear_bhb_loop+0x30/0x80
[  259.803578][ T4817]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  259.809490][ T4817] RIP: 0033:0x7faf0dd0538a
[  259.814007][ T4817] 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
[  259.833630][ T4817] RSP: 002b:00007ffe06a49088 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  259.842067][ T4817] RAX: ffffffffffffffda RBX: 00007ffe06a49110 RCX: 00007faf0dd0538a
[  259.850057][ T4817] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe06a490d0
[  259.858049][ T4817] RBP: 0000200000000400 R08: 00007ffe06a49110 R09: 0000000000000000
[  259.866036][ T4817] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  259.874031][ T4817] R13: 00007ffe06a490d0 R14: 00000000000125ed R15: 0000200000000640
[  259.882037][ T4817]  </TASK>
[  259.886645][ T4817] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  259.899819][ T4817] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  260.037972][ T4818] loop1: detected capacity change from 0 to 32768
[  260.227155][ T4818] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  260.234608][ T4818] CPU: 0 PID: 4818 Comm: syz.1.357 Not tainted syzkaller #0
[  260.242000][ T4818] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  260.252075][ T4818] Call Trace:
[  260.255376][ T4818]  <TASK>
[  260.258322][ T4818]  dump_stack_lvl+0x168/0x230
[  260.262046][ T4819] loop0: detected capacity change from 0 to 32768
[  260.263143][ T4818]  ? show_regs_print_info+0x20/0x20
[  260.274757][ T4818]  ? load_image+0x3b0/0x3b0
[  260.279405][ T4818]  sysfs_create_dir_ns+0x252/0x280
[  260.284559][ T4818]  ? __lock_acquire+0x7c60/0x7c60
[  260.289740][ T4818]  ? sysfs_warn_dup+0xa0/0xa0
[  260.294456][ T4818]  ? do_raw_spin_unlock+0x11d/0x230
[  260.299685][ T4818]  kobject_add_internal+0x662/0xd00
[  260.304911][ T4818]  kobject_init_and_add+0x122/0x190
[  260.310130][ T4818]  ? lockdep_softirqs_off+0x420/0x420
[  260.315631][ T4818]  ? kobject_add+0x210/0x210
[  260.320248][ T4818]  ? __init_swait_queue_head+0xa5/0x150
[  260.325817][ T4818]  gfs2_sys_fs_add+0x234/0x480
[  260.330604][ T4818]  ? gfs2_recover_set+0x240/0x240
[  260.335650][ T4818]  ? snprintf+0xd7/0x120
[  260.340012][ T4818]  ? __free_pages+0x95/0x1a0
[  260.344718][ T4818]  ? vscnprintf+0x80/0x80
[  260.349079][ T4818]  gfs2_fill_super+0x128d/0x1f50
[  260.354051][ T4818]  ? gfs2_reconfigure+0xcd0/0xcd0
[  260.359096][ T4818]  ? preempt_count_add+0x8d/0x190
[  260.364166][ T4818]  ? sb_set_blocksize+0xa5/0xe0
[  260.369041][ T4818]  get_tree_bdev+0x3f1/0x610
[  260.373650][ T4818]  ? gfs2_reconfigure+0xcd0/0xcd0
[  260.378693][ T4818]  gfs2_get_tree+0x4d/0x1e0
[  260.383216][ T4818]  vfs_get_tree+0x88/0x270
[  260.387649][ T4818]  do_new_mount+0x24a/0xa40
[  260.392394][ T4818]  __se_sys_mount+0x2d6/0x3c0
[  260.397096][ T4818]  ? __x64_sys_mount+0xc0/0xc0
[  260.401880][ T4818]  ? lockdep_hardirqs_on+0x94/0x140
[  260.407089][ T4818]  ? __x64_sys_mount+0x1c/0xc0
[  260.411865][ T4818]  do_syscall_64+0x4c/0xa0
[  260.416288][ T4818]  ? clear_bhb_loop+0x30/0x80
[  260.421347][ T4818]  ? clear_bhb_loop+0x30/0x80
[  260.426046][ T4818]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  260.431958][ T4818] RIP: 0033:0x7f303caf138a
[  260.436489][ T4818] 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
[  260.456645][ T4818] RSP: 002b:00007ffc72ab5aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  260.465098][ T4818] RAX: ffffffffffffffda RBX: 00007ffc72ab5b30 RCX: 00007f303caf138a
[  260.473203][ T4818] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffc72ab5af0
[  260.481200][ T4818] RBP: 0000200000000400 R08: 00007ffc72ab5b30 R09: 0000000000000000
[  260.489197][ T4818] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  260.497470][ T4818] R13: 00007ffc72ab5af0 R14: 00000000000125ed R15: 0000200000000640
[  260.505483][ T4818]  </TASK>
[  260.508737][ T4818] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  260.521902][ T4818] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  260.571256][ T4820] loop2: detected capacity change from 0 to 32768
[  260.662453][ T4819] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  260.670469][ T4819] CPU: 1 PID: 4819 Comm: syz.0.358 Not tainted syzkaller #0
[  260.677828][ T4819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  260.687900][ T4819] Call Trace:
[  260.691183][ T4819]  <TASK>
[  260.694126][ T4819]  dump_stack_lvl+0x168/0x230
[  260.698849][ T4819]  ? show_regs_print_info+0x20/0x20
[  260.704069][ T4819]  ? load_image+0x3b0/0x3b0
[  260.708612][ T4819]  sysfs_create_dir_ns+0x252/0x280
[  260.713745][ T4819]  ? __lock_acquire+0x7c60/0x7c60
[  260.718799][ T4819]  ? sysfs_warn_dup+0xa0/0xa0
[  260.723512][ T4819]  ? do_raw_spin_unlock+0x11d/0x230
[  260.728746][ T4819]  kobject_add_internal+0x662/0xd00
[  260.733972][ T4819]  kobject_init_and_add+0x122/0x190
[  260.739186][ T4819]  ? lockdep_softirqs_off+0x420/0x420
[  260.744595][ T4819]  ? kobject_add+0x210/0x210
[  260.749235][ T4819]  ? __init_swait_queue_head+0xa5/0x150
[  260.754906][ T4819]  gfs2_sys_fs_add+0x234/0x480
[  260.759697][ T4819]  ? gfs2_recover_set+0x240/0x240
[  260.764741][ T4819]  ? snprintf+0xd7/0x120
[  260.769097][ T4819]  ? __free_pages+0x95/0x1a0
[  260.773792][ T4819]  ? vscnprintf+0x80/0x80
[  260.778157][ T4819]  gfs2_fill_super+0x128d/0x1f50
[  260.783130][ T4819]  ? gfs2_reconfigure+0xcd0/0xcd0
[  260.788222][ T4819]  ? preempt_count_add+0x8d/0x190
[  260.793284][ T4819]  ? sb_set_blocksize+0xa5/0xe0
[  260.798158][ T4819]  get_tree_bdev+0x3f1/0x610
[  260.802770][ T4819]  ? gfs2_reconfigure+0xcd0/0xcd0
[  260.807813][ T4819]  gfs2_get_tree+0x4d/0x1e0
[  260.812379][ T4819]  vfs_get_tree+0x88/0x270
[  260.816815][ T4819]  do_new_mount+0x24a/0xa40
[  260.821365][ T4819]  __se_sys_mount+0x2d6/0x3c0
[  260.826061][ T4819]  ? __x64_sys_mount+0xc0/0xc0
[  260.830846][ T4819]  ? lockdep_hardirqs_on+0x94/0x140
[  260.836064][ T4819]  ? __x64_sys_mount+0x1c/0xc0
[  260.840843][ T4819]  do_syscall_64+0x4c/0xa0
[  260.841707][ T4821] loop4: detected capacity change from 0 to 32768
[  260.845270][ T4819]  ? clear_bhb_loop+0x30/0x80
[  260.845294][ T4819]  ? clear_bhb_loop+0x30/0x80
[  260.845313][ T4819]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  260.845333][ T4819] RIP: 0033:0x7f9530bc438a
[  260.845353][ T4819] 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
[  260.845371][ T4819] RSP: 002b:00007ffd38ead2c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  260.845395][ T4819] RAX: ffffffffffffffda RBX: 00007ffd38ead350 RCX: 00007f9530bc438a
[  260.845411][ T4819] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd38ead310
[  260.845427][ T4819] RBP: 0000200000000400 R08: 00007ffd38ead350 R09: 0000000000000000
[  260.845442][ T4819] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  260.845457][ T4819] R13: 00007ffd38ead310 R14: 00000000000125ed R15: 0000200000000640
[  260.845489][ T4819]  </TASK>
[  260.846686][ T4819] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  260.873613][ T4820] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  260.892222][ T4819] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  260.972317][ T4820] CPU: 0 PID: 4820 Comm: syz.2.359 Not tainted syzkaller #0
[  260.979728][ T4820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  260.989801][ T4820] Call Trace:
[  260.993096][ T4820]  <TASK>
[  260.996039][ T4820]  dump_stack_lvl+0x168/0x230
[  261.000746][ T4820]  ? show_regs_print_info+0x20/0x20
[  261.005966][ T4820]  ? load_image+0x3b0/0x3b0
[  261.010590][ T4820]  sysfs_create_dir_ns+0x252/0x280
[  261.015724][ T4820]  ? __lock_acquire+0x7c60/0x7c60
[  261.020771][ T4820]  ? sysfs_warn_dup+0xa0/0xa0
[  261.025470][ T4820]  ? do_raw_spin_unlock+0x11d/0x230
[  261.030700][ T4820]  kobject_add_internal+0x662/0xd00
[  261.035922][ T4820]  kobject_init_and_add+0x122/0x190
[  261.041143][ T4820]  ? lockdep_softirqs_off+0x420/0x420
[  261.046538][ T4820]  ? kobject_add+0x210/0x210
[  261.051149][ T4820]  ? __init_swait_queue_head+0xa5/0x150
[  261.056713][ T4820]  gfs2_sys_fs_add+0x234/0x480
[  261.061577][ T4820]  ? gfs2_recover_set+0x240/0x240
[  261.066611][ T4820]  ? snprintf+0xd7/0x120
[  261.070883][ T4820]  ? __free_pages+0x95/0x1a0
[  261.075580][ T4820]  ? vscnprintf+0x80/0x80
[  261.080037][ T4820]  gfs2_fill_super+0x128d/0x1f50
[  261.085070][ T4820]  ? gfs2_reconfigure+0xcd0/0xcd0
[  261.090129][ T4820]  ? preempt_count_add+0x8d/0x190
[  261.095193][ T4820]  ? sb_set_blocksize+0xa5/0xe0
[  261.100074][ T4820]  get_tree_bdev+0x3f1/0x610
[  261.104695][ T4820]  ? gfs2_reconfigure+0xcd0/0xcd0
[  261.109763][ T4820]  gfs2_get_tree+0x4d/0x1e0
[  261.114304][ T4820]  vfs_get_tree+0x88/0x270
[  261.118761][ T4820]  do_new_mount+0x24a/0xa40
[  261.123302][ T4820]  __se_sys_mount+0x2d6/0x3c0
[  261.128018][ T4820]  ? __x64_sys_mount+0xc0/0xc0
[  261.132819][ T4820]  ? lockdep_hardirqs_on+0x94/0x140
[  261.138036][ T4820]  ? __x64_sys_mount+0x1c/0xc0
[  261.142821][ T4820]  do_syscall_64+0x4c/0xa0
[  261.147404][ T4820]  ? clear_bhb_loop+0x30/0x80
[  261.152105][ T4820]  ? clear_bhb_loop+0x30/0x80
[  261.156903][ T4820]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  261.162821][ T4820] RIP: 0033:0x7f96b862d38a
[  261.167282][ T4820] 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
[  261.186916][ T4820] RSP: 002b:00007ffd68b69448 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  261.195624][ T4820] RAX: ffffffffffffffda RBX: 00007ffd68b694d0 RCX: 00007f96b862d38a
[  261.203625][ T4820] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd68b69490
[  261.211628][ T4820] RBP: 0000200000000400 R08: 00007ffd68b694d0 R09: 0000000000000000
[  261.218501][ T4822] loop5: detected capacity change from 0 to 32768
[  261.219613][ T4820] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  261.230048][ T4822] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  261.233995][ T4820] R13: 00007ffd68b69490 R14: 00000000000125ed R15: 0000200000000640
[  261.249367][ T4820]  </TASK>
[  261.252560][ T4822] CPU: 1 PID: 4822 Comm: syz.5.361 Not tainted syzkaller #0
[  261.254002][ T4820] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  261.259857][ T4822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  261.259871][ T4822] Call Trace:
[  261.259879][ T4822]  <TASK>
[  261.259887][ T4822]  dump_stack_lvl+0x168/0x230
[  261.259919][ T4822]  ? show_regs_print_info+0x20/0x20
[  261.273115][ T4820] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  261.283134][ T4822]  ? load_image+0x3b0/0x3b0
[  261.283171][ T4822]  sysfs_create_dir_ns+0x252/0x280
[  261.315412][ T4822]  ? __lock_acquire+0x7c60/0x7c60
[  261.320469][ T4822]  ? sysfs_warn_dup+0xa0/0xa0
[  261.325177][ T4822]  ? do_raw_spin_unlock+0x11d/0x230
[  261.330394][ T4822]  kobject_add_internal+0x662/0xd00
[  261.335620][ T4822]  kobject_init_and_add+0x122/0x190
[  261.340838][ T4822]  ? lockdep_softirqs_off+0x420/0x420
[  261.346333][ T4822]  ? kobject_add+0x210/0x210
[  261.350951][ T4822]  ? __init_swait_queue_head+0xa5/0x150
[  261.356530][ T4822]  gfs2_sys_fs_add+0x234/0x480
[  261.361329][ T4822]  ? gfs2_recover_set+0x240/0x240
[  261.366375][ T4822]  ? snprintf+0xd7/0x120
[  261.370642][ T4822]  ? __free_pages+0x95/0x1a0
[  261.375243][ T4822]  ? vscnprintf+0x80/0x80
[  261.379577][ T4822]  gfs2_fill_super+0x128d/0x1f50
[  261.384538][ T4822]  ? gfs2_reconfigure+0xcd0/0xcd0
[  261.389542][ T4822]  ? preempt_count_add+0x8d/0x190
[  261.394548][ T4822]  ? sb_set_blocksize+0xa5/0xe0
[  261.399393][ T4822]  get_tree_bdev+0x3f1/0x610
[  261.403994][ T4822]  ? gfs2_reconfigure+0xcd0/0xcd0
[  261.408996][ T4822]  gfs2_get_tree+0x4d/0x1e0
[  261.413477][ T4822]  vfs_get_tree+0x88/0x270
[  261.417978][ T4822]  do_new_mount+0x24a/0xa40
[  261.422489][ T4822]  __se_sys_mount+0x2d6/0x3c0
[  261.427150][ T4822]  ? __x64_sys_mount+0xc0/0xc0
[  261.431910][ T4822]  ? syscall_enter_from_user_mode+0x2a/0x70
[  261.438231][ T4822]  ? __x64_sys_mount+0x1c/0xc0
[  261.443001][ T4822]  do_syscall_64+0x4c/0xa0
[  261.447406][ T4822]  ? clear_bhb_loop+0x30/0x80
[  261.452088][ T4822]  ? clear_bhb_loop+0x30/0x80
[  261.456758][ T4822]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  261.462666][ T4822] RIP: 0033:0x7f189ed2638a
[  261.467255][ T4822] 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
[  261.486890][ T4822] RSP: 002b:00007ffd7103d4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  261.495432][ T4822] RAX: ffffffffffffffda RBX: 00007ffd7103d540 RCX: 00007f189ed2638a
[  261.503389][ T4822] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd7103d500
[  261.511645][ T4822] RBP: 0000200000000400 R08: 00007ffd7103d540 R09: 0000000000000000
[  261.519613][ T4822] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  261.527606][ T4822] R13: 00007ffd7103d500 R14: 00000000000125ed R15: 0000200000000640
[  261.535592][ T4822]  </TASK>
[  261.539212][ T4822] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  261.552439][ T4822] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  261.570814][ T4821] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  261.578802][ T4821] CPU: 0 PID: 4821 Comm: syz.4.360 Not tainted syzkaller #0
[  261.586113][ T4821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  261.596187][ T4821] Call Trace:
[  261.599499][ T4821]  <TASK>
[  261.602463][ T4821]  dump_stack_lvl+0x168/0x230
[  261.607344][ T4821]  ? show_regs_print_info+0x20/0x20
[  261.612576][ T4821]  ? load_image+0x3b0/0x3b0
[  261.617119][ T4821]  sysfs_create_dir_ns+0x252/0x280
[  261.622253][ T4821]  ? __lock_acquire+0x7c60/0x7c60
[  261.627468][ T4821]  ? sysfs_warn_dup+0xa0/0xa0
[  261.632166][ T4821]  ? do_raw_spin_unlock+0x11d/0x230
[  261.637382][ T4821]  kobject_add_internal+0x662/0xd00
[  261.642701][ T4821]  kobject_init_and_add+0x122/0x190
[  261.647922][ T4821]  ? lockdep_softirqs_off+0x420/0x420
[  261.653408][ T4821]  ? kobject_add+0x210/0x210
[  261.658024][ T4821]  ? __init_swait_queue_head+0xa5/0x150
[  261.663714][ T4821]  gfs2_sys_fs_add+0x234/0x480
[  261.668513][ T4821]  ? gfs2_recover_set+0x240/0x240
[  261.673579][ T4821]  ? snprintf+0xd7/0x120
[  261.677855][ T4821]  ? __free_pages+0x95/0x1a0
[  261.682467][ T4821]  ? vscnprintf+0x80/0x80
[  261.686827][ T4821]  gfs2_fill_super+0x128d/0x1f50
[  261.691799][ T4821]  ? gfs2_reconfigure+0xcd0/0xcd0
[  261.696938][ T4821]  ? preempt_count_add+0x8d/0x190
[  261.702095][ T4821]  ? sb_set_blocksize+0xa5/0xe0
[  261.706965][ T4821]  get_tree_bdev+0x3f1/0x610
[  261.711572][ T4821]  ? gfs2_reconfigure+0xcd0/0xcd0
[  261.716624][ T4821]  gfs2_get_tree+0x4d/0x1e0
[  261.721140][ T4821]  vfs_get_tree+0x88/0x270
[  261.725568][ T4821]  do_new_mount+0x24a/0xa40
[  261.730102][ T4821]  __se_sys_mount+0x2d6/0x3c0
[  261.734796][ T4821]  ? __x64_sys_mount+0xc0/0xc0
[  261.739581][ T4821]  ? lockdep_hardirqs_on+0x94/0x140
[  261.744811][ T4821]  ? __x64_sys_mount+0x1c/0xc0
[  261.749606][ T4821]  do_syscall_64+0x4c/0xa0
[  261.754039][ T4821]  ? clear_bhb_loop+0x30/0x80
[  261.758731][ T4821]  ? clear_bhb_loop+0x30/0x80
[  261.763429][ T4821]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  261.769337][ T4821] RIP: 0033:0x7faf0dd0538a
[  261.773768][ T4821] 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
[  261.793385][ T4821] RSP: 002b:00007ffe06a49088 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  261.801820][ T4821] RAX: ffffffffffffffda RBX: 00007ffe06a49110 RCX: 00007faf0dd0538a
[  261.809806][ T4821] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe06a490d0
[  261.817796][ T4821] RBP: 0000200000000400 R08: 00007ffe06a49110 R09: 0000000000000000
[  261.825875][ T4821] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  261.833857][ T4821] R13: 00007ffe06a490d0 R14: 00000000000125ed R15: 0000200000000640
[  261.842206][ T4821]  </TASK>
[  261.846630][ T4821] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  261.860206][ T4821] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  262.158071][ T4823] loop1: detected capacity change from 0 to 32768
[  262.479300][ T4824] loop2: detected capacity change from 0 to 32768
[  262.491396][ T4825] loop0: detected capacity change from 0 to 32768
[  262.546901][ T4824] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  262.554320][ T4824] CPU: 0 PID: 4824 Comm: syz.2.364 Not tainted syzkaller #0
[  262.561624][ T4824] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  262.571705][ T4824] Call Trace:
[  262.574998][ T4824]  <TASK>
[  262.578024][ T4824]  dump_stack_lvl+0x168/0x230
[  262.582723][ T4824]  ? show_regs_print_info+0x20/0x20
[  262.587940][ T4824]  ? load_image+0x3b0/0x3b0
[  262.592475][ T4824]  sysfs_create_dir_ns+0x252/0x280
[  262.597701][ T4824]  ? __lock_acquire+0x7c60/0x7c60
[  262.602284][ T4823] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  262.602747][ T4824]  ? sysfs_warn_dup+0xa0/0xa0
[  262.614782][ T4824]  ? do_raw_spin_unlock+0x11d/0x230
[  262.619986][ T4824]  kobject_add_internal+0x662/0xd00
[  262.625203][ T4824]  kobject_init_and_add+0x122/0x190
[  262.630403][ T4824]  ? lockdep_softirqs_off+0x420/0x420
[  262.635776][ T4824]  ? kobject_add+0x210/0x210
[  262.640378][ T4824]  ? __init_swait_queue_head+0xa5/0x150
[  262.645928][ T4824]  gfs2_sys_fs_add+0x234/0x480
[  262.650692][ T4824]  ? gfs2_recover_set+0x240/0x240
[  262.655717][ T4824]  ? snprintf+0xd7/0x120
[  262.659959][ T4824]  ? __free_pages+0x95/0x1a0
[  262.664558][ T4824]  ? vscnprintf+0x80/0x80
[  262.668898][ T4824]  gfs2_fill_super+0x128d/0x1f50
[  262.673853][ T4824]  ? gfs2_reconfigure+0xcd0/0xcd0
[  262.678881][ T4824]  ? preempt_count_add+0x8d/0x190
[  262.683914][ T4824]  ? sb_set_blocksize+0xa5/0xe0
[  262.688769][ T4824]  get_tree_bdev+0x3f1/0x610
[  262.693382][ T4824]  ? gfs2_reconfigure+0xcd0/0xcd0
[  262.698410][ T4824]  gfs2_get_tree+0x4d/0x1e0
[  262.702917][ T4824]  vfs_get_tree+0x88/0x270
[  262.707336][ T4824]  do_new_mount+0x24a/0xa40
[  262.711859][ T4824]  __se_sys_mount+0x2d6/0x3c0
[  262.716539][ T4824]  ? __x64_sys_mount+0xc0/0xc0
[  262.721312][ T4824]  ? lockdep_hardirqs_on+0x94/0x140
[  262.726513][ T4824]  ? __x64_sys_mount+0x1c/0xc0
[  262.731385][ T4824]  do_syscall_64+0x4c/0xa0
[  262.735824][ T4824]  ? clear_bhb_loop+0x30/0x80
[  262.740515][ T4824]  ? clear_bhb_loop+0x30/0x80
[  262.745212][ T4824]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  262.751111][ T4824] RIP: 0033:0x7f96b862d38a
[  262.755623][ T4824] 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
[  262.775591][ T4824] RSP: 002b:00007ffd68b69448 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  262.784012][ T4824] RAX: ffffffffffffffda RBX: 00007ffd68b694d0 RCX: 00007f96b862d38a
[  262.791985][ T4824] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd68b69490
[  262.799958][ T4824] RBP: 0000200000000400 R08: 00007ffd68b694d0 R09: 0000000000000000
[  262.808073][ T4824] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  262.816042][ T4824] R13: 00007ffd68b69490 R14: 00000000000125ed R15: 0000200000000640
[  262.824030][ T4824]  </TASK>
[  262.827048][ T4823] CPU: 1 PID: 4823 Comm: syz.1.362 Not tainted syzkaller #0
[  262.828288][ T4824] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  262.834353][ T4823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  262.847485][ T4824] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  262.857495][ T4823] Call Trace:
[  262.857506][ T4823]  <TASK>
[  262.857515][ T4823]  dump_stack_lvl+0x168/0x230
[  262.874988][ T4823]  ? show_regs_print_info+0x20/0x20
[  262.880219][ T4823]  ? load_image+0x3b0/0x3b0
[  262.885025][ T4823]  sysfs_create_dir_ns+0x252/0x280
[  262.890159][ T4823]  ? __lock_acquire+0x7c60/0x7c60
[  262.895206][ T4823]  ? sysfs_warn_dup+0xa0/0xa0
[  262.899905][ T4823]  ? do_raw_spin_unlock+0x11d/0x230
[  262.905469][ T4823]  kobject_add_internal+0x662/0xd00
[  262.910689][ T4823]  kobject_init_and_add+0x122/0x190
[  262.915901][ T4823]  ? lockdep_softirqs_off+0x420/0x420
[  262.921296][ T4823]  ? kobject_add+0x210/0x210
[  262.925919][ T4823]  ? __init_swait_queue_head+0xa5/0x150
[  262.931483][ T4823]  gfs2_sys_fs_add+0x234/0x480
[  262.936267][ T4823]  ? gfs2_recover_set+0x240/0x240
[  262.941324][ T4823]  ? snprintf+0xd7/0x120
[  262.945590][ T4823]  ? __free_pages+0x95/0x1a0
[  262.950196][ T4823]  ? vscnprintf+0x80/0x80
[  262.954562][ T4823]  gfs2_fill_super+0x128d/0x1f50
[  262.959544][ T4823]  ? gfs2_reconfigure+0xcd0/0xcd0
[  262.964689][ T4823]  ? preempt_count_add+0x8d/0x190
[  262.969756][ T4823]  ? sb_set_blocksize+0xa5/0xe0
[  262.974640][ T4823]  get_tree_bdev+0x3f1/0x610
[  262.979261][ T4823]  ? gfs2_reconfigure+0xcd0/0xcd0
[  262.984323][ T4823]  gfs2_get_tree+0x4d/0x1e0
[  262.988855][ T4823]  vfs_get_tree+0x88/0x270
[  262.993295][ T4823]  do_new_mount+0x24a/0xa40
[  262.997840][ T4823]  __se_sys_mount+0x2d6/0x3c0
[  263.002544][ T4823]  ? __x64_sys_mount+0xc0/0xc0
[  263.007413][ T4823]  ? lockdep_hardirqs_on+0x94/0x140
[  263.012645][ T4823]  ? __x64_sys_mount+0x1c/0xc0
[  263.017433][ T4823]  do_syscall_64+0x4c/0xa0
[  263.021878][ T4823]  ? clear_bhb_loop+0x30/0x80
[  263.026587][ T4823]  ? clear_bhb_loop+0x30/0x80
[  263.031294][ T4823]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  263.037211][ T4823] RIP: 0033:0x7f303caf138a
[  263.041642][ T4823] 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
[  263.061278][ T4823] RSP: 002b:00007ffc72ab5aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  263.069731][ T4823] RAX: ffffffffffffffda RBX: 00007ffc72ab5b30 RCX: 00007f303caf138a
[  263.077724][ T4823] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffc72ab5af0
[  263.085801][ T4823] RBP: 0000200000000400 R08: 00007ffc72ab5b30 R09: 0000000000000000
[  263.093788][ T4823] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  263.101769][ T4823] R13: 00007ffc72ab5af0 R14: 00000000000125ed R15: 0000200000000640
[  263.109768][ T4823]  </TASK>
[  263.113569][ T4823] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  263.126846][ T4823] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  263.171234][ T4825] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  263.178939][ T4825] CPU: 1 PID: 4825 Comm: syz.0.363 Not tainted syzkaller #0
[  263.186339][ T4825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  263.196419][ T4825] Call Trace:
[  263.199728][ T4825]  <TASK>
[  263.202676][ T4825]  dump_stack_lvl+0x168/0x230
[  263.207380][ T4825]  ? show_regs_print_info+0x20/0x20
[  263.212606][ T4825]  ? load_image+0x3b0/0x3b0
[  263.217144][ T4825]  sysfs_create_dir_ns+0x252/0x280
[  263.222279][ T4825]  ? __lock_acquire+0x7c60/0x7c60
[  263.227342][ T4825]  ? sysfs_warn_dup+0xa0/0xa0
[  263.232136][ T4825]  ? do_raw_spin_unlock+0x11d/0x230
[  263.237879][ T4825]  kobject_add_internal+0x662/0xd00
[  263.243113][ T4825]  kobject_init_and_add+0x122/0x190
[  263.248335][ T4825]  ? lockdep_softirqs_off+0x420/0x420
[  263.253732][ T4825]  ? kobject_add+0x210/0x210
[  263.258346][ T4825]  ? __init_swait_queue_head+0xa5/0x150
[  263.263923][ T4825]  gfs2_sys_fs_add+0x234/0x480
[  263.268806][ T4825]  ? gfs2_recover_set+0x240/0x240
[  263.269122][ T4826] loop5: detected capacity change from 0 to 32768
[  263.273847][ T4825]  ? snprintf+0xd7/0x120
[  263.284499][ T4825]  ? __free_pages+0x95/0x1a0
[  263.289121][ T4825]  ? vscnprintf+0x80/0x80
[  263.293489][ T4825]  gfs2_fill_super+0x128d/0x1f50
[  263.298471][ T4825]  ? gfs2_reconfigure+0xcd0/0xcd0
[  263.303521][ T4825]  ? preempt_count_add+0x8d/0x190
[  263.308578][ T4825]  ? sb_set_blocksize+0xa5/0xe0
[  263.313462][ T4825]  get_tree_bdev+0x3f1/0x610
[  263.318079][ T4825]  ? gfs2_reconfigure+0xcd0/0xcd0
[  263.323314][ T4825]  gfs2_get_tree+0x4d/0x1e0
[  263.327956][ T4825]  vfs_get_tree+0x88/0x270
[  263.332408][ T4825]  do_new_mount+0x24a/0xa40
[  263.336940][ T4825]  __se_sys_mount+0x2d6/0x3c0
[  263.341643][ T4825]  ? __x64_sys_mount+0xc0/0xc0
[  263.346433][ T4825]  ? lockdep_hardirqs_on+0x94/0x140
[  263.351646][ T4825]  ? __x64_sys_mount+0x1c/0xc0
[  263.356435][ T4825]  do_syscall_64+0x4c/0xa0
[  263.360869][ T4825]  ? clear_bhb_loop+0x30/0x80
[  263.365560][ T4825]  ? clear_bhb_loop+0x30/0x80
[  263.370255][ T4825]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  263.376249][ T4825] RIP: 0033:0x7f9530bc438a
[  263.380687][ T4825] 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
[  263.400326][ T4825] RSP: 002b:00007ffd38ead2c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  263.408777][ T4825] RAX: ffffffffffffffda RBX: 00007ffd38ead350 RCX: 00007f9530bc438a
[  263.416767][ T4825] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd38ead310
[  263.424752][ T4825] RBP: 0000200000000400 R08: 00007ffd38ead350 R09: 0000000000000000
[  263.432743][ T4825] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  263.440722][ T4825] R13: 00007ffd38ead310 R14: 00000000000125ed R15: 0000200000000640
[  263.448725][ T4825]  </TASK>
[  263.452440][ T4825] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  263.465830][ T4825] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  263.613154][ T4827] loop4: detected capacity change from 0 to 32768
[  263.631001][ T4826] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  263.638472][ T4826] CPU: 0 PID: 4826 Comm: syz.5.365 Not tainted syzkaller #0
[  263.645863][ T4826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  263.655938][ T4826] Call Trace:
[  263.659238][ T4826]  <TASK>
[  263.662189][ T4826]  dump_stack_lvl+0x168/0x230
[  263.666890][ T4826]  ? show_regs_print_info+0x20/0x20
[  263.672108][ T4826]  ? load_image+0x3b0/0x3b0
[  263.676644][ T4826]  sysfs_create_dir_ns+0x252/0x280
[  263.681777][ T4826]  ? __lock_acquire+0x7c60/0x7c60
[  263.686819][ T4826]  ? sysfs_warn_dup+0xa0/0xa0
[  263.691518][ T4826]  ? do_raw_spin_unlock+0x11d/0x230
[  263.696738][ T4826]  kobject_add_internal+0x662/0xd00
[  263.701971][ T4826]  kobject_init_and_add+0x122/0x190
[  263.707188][ T4826]  ? lockdep_softirqs_off+0x420/0x420
[  263.712607][ T4826]  ? kobject_add+0x210/0x210
[  263.717232][ T4826]  ? __init_swait_queue_head+0xa5/0x150
[  263.722818][ T4826]  gfs2_sys_fs_add+0x234/0x480
[  263.727613][ T4826]  ? gfs2_recover_set+0x240/0x240
[  263.732667][ T4826]  ? snprintf+0xd7/0x120
[  263.736940][ T4826]  ? __free_pages+0x95/0x1a0
[  263.741644][ T4826]  ? vscnprintf+0x80/0x80
[  263.746019][ T4826]  gfs2_fill_super+0x128d/0x1f50
[  263.750990][ T4826]  ? gfs2_reconfigure+0xcd0/0xcd0
[  263.756042][ T4826]  ? preempt_count_add+0x8d/0x190
[  263.761099][ T4826]  ? sb_set_blocksize+0xa5/0xe0
[  263.766065][ T4826]  get_tree_bdev+0x3f1/0x610
[  263.770687][ T4826]  ? gfs2_reconfigure+0xcd0/0xcd0
[  263.775730][ T4826]  gfs2_get_tree+0x4d/0x1e0
[  263.780251][ T4826]  vfs_get_tree+0x88/0x270
[  263.784686][ T4826]  do_new_mount+0x24a/0xa40
[  263.789212][ T4826]  __se_sys_mount+0x2d6/0x3c0
[  263.793915][ T4826]  ? __x64_sys_mount+0xc0/0xc0
[  263.798705][ T4826]  ? lockdep_hardirqs_on+0x94/0x140
[  263.804006][ T4826]  ? __x64_sys_mount+0x1c/0xc0
[  263.808876][ T4826]  do_syscall_64+0x4c/0xa0
[  263.813304][ T4826]  ? clear_bhb_loop+0x30/0x80
[  263.817998][ T4826]  ? clear_bhb_loop+0x30/0x80
[  263.822691][ T4826]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  263.828597][ T4826] RIP: 0033:0x7f189ed2638a
[  263.833025][ T4826] 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
[  263.852744][ T4826] RSP: 002b:00007ffd7103d4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  263.861182][ T4826] RAX: ffffffffffffffda RBX: 00007ffd7103d540 RCX: 00007f189ed2638a
[  263.869174][ T4826] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd7103d500
[  263.877153][ T4826] RBP: 0000200000000400 R08: 00007ffd7103d540 R09: 0000000000000000
[  263.885141][ T4826] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  263.893133][ T4826] R13: 00007ffd7103d500 R14: 00000000000125ed R15: 0000200000000640
[  263.901137][ T4826]  </TASK>
[  263.905805][ T4826] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  263.920448][ T4826] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/09/01 14:49:31 executed programs: 360
[  264.041983][ T4828] loop1: detected capacity change from 0 to 32768
[  264.097680][ T4827] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  264.105105][ T4827] CPU: 0 PID: 4827 Comm: syz.4.366 Not tainted syzkaller #0
[  264.112404][ T4827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  264.122470][ T4827] Call Trace:
[  264.125767][ T4827]  <TASK>
[  264.128716][ T4827]  dump_stack_lvl+0x168/0x230
[  264.133425][ T4827]  ? show_regs_print_info+0x20/0x20
[  264.138648][ T4827]  ? load_image+0x3b0/0x3b0
[  264.143187][ T4827]  sysfs_create_dir_ns+0x252/0x280
[  264.148317][ T4827]  ? __lock_acquire+0x7c60/0x7c60
[  264.153448][ T4827]  ? sysfs_warn_dup+0xa0/0xa0
[  264.158150][ T4827]  ? do_raw_spin_unlock+0x11d/0x230
[  264.163371][ T4827]  kobject_add_internal+0x662/0xd00
[  264.168599][ T4827]  kobject_init_and_add+0x122/0x190
[  264.173814][ T4827]  ? lockdep_softirqs_off+0x420/0x420
[  264.179210][ T4827]  ? kobject_add+0x210/0x210
[  264.183818][ T4827]  ? __init_swait_queue_head+0xa5/0x150
[  264.189473][ T4827]  gfs2_sys_fs_add+0x234/0x480
[  264.194264][ T4827]  ? gfs2_recover_set+0x240/0x240
[  264.199303][ T4827]  ? snprintf+0xd7/0x120
[  264.203566][ T4827]  ? __free_pages+0x95/0x1a0
[  264.208190][ T4827]  ? vscnprintf+0x80/0x80
[  264.212551][ T4827]  gfs2_fill_super+0x128d/0x1f50
[  264.217529][ T4827]  ? gfs2_reconfigure+0xcd0/0xcd0
[  264.222683][ T4827]  ? preempt_count_add+0x8d/0x190
[  264.227878][ T4827]  ? sb_set_blocksize+0xa5/0xe0
[  264.232749][ T4827]  get_tree_bdev+0x3f1/0x610
[  264.237367][ T4827]  ? gfs2_reconfigure+0xcd0/0xcd0
[  264.242410][ T4827]  gfs2_get_tree+0x4d/0x1e0
[  264.246935][ T4827]  vfs_get_tree+0x88/0x270
[  264.251367][ T4827]  do_new_mount+0x24a/0xa40
[  264.255897][ T4827]  __se_sys_mount+0x2d6/0x3c0
[  264.260601][ T4827]  ? __x64_sys_mount+0xc0/0xc0
[  264.265401][ T4827]  ? lockdep_hardirqs_on+0x94/0x140
[  264.270619][ T4827]  ? __x64_sys_mount+0x1c/0xc0
[  264.275404][ T4827]  do_syscall_64+0x4c/0xa0
[  264.279838][ T4827]  ? clear_bhb_loop+0x30/0x80
[  264.284530][ T4827]  ? clear_bhb_loop+0x30/0x80
[  264.289232][ T4827]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  264.295142][ T4827] RIP: 0033:0x7faf0dd0538a
[  264.299576][ T4827] 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
[  264.319202][ T4827] RSP: 002b:00007ffe06a49088 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  264.327642][ T4827] RAX: ffffffffffffffda RBX: 00007ffe06a49110 RCX: 00007faf0dd0538a
[  264.335649][ T4827] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe06a490d0
[  264.343639][ T4827] RBP: 0000200000000400 R08: 00007ffe06a49110 R09: 0000000000000000
[  264.351629][ T4827] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  264.359616][ T4827] R13: 00007ffe06a490d0 R14: 00000000000125ed R15: 0000200000000640
[  264.367621][ T4827]  </TASK>
[  264.372104][ T4827] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  264.385272][ T4827] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  264.405431][ T4829] loop2: detected capacity change from 0 to 32768
[  264.594142][ T4830] loop0: detected capacity change from 0 to 32768
[  264.637873][ T4828] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  264.645394][ T4828] CPU: 1 PID: 4828 Comm: syz.1.367 Not tainted syzkaller #0
[  264.652790][ T4828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  264.662948][ T4828] Call Trace:
[  264.666240][ T4828]  <TASK>
[  264.669179][ T4828]  dump_stack_lvl+0x168/0x230
[  264.673883][ T4828]  ? show_regs_print_info+0x20/0x20
[  264.679100][ T4828]  ? load_image+0x3b0/0x3b0
[  264.683632][ T4828]  sysfs_create_dir_ns+0x252/0x280
[  264.688767][ T4828]  ? __lock_acquire+0x7c60/0x7c60
[  264.693815][ T4828]  ? sysfs_warn_dup+0xa0/0xa0
[  264.698513][ T4828]  ? do_raw_spin_unlock+0x11d/0x230
[  264.703741][ T4828]  kobject_add_internal+0x662/0xd00
[  264.708971][ T4828]  kobject_init_and_add+0x122/0x190
[  264.714201][ T4828]  ? lockdep_softirqs_off+0x420/0x420
[  264.719608][ T4828]  ? kobject_add+0x210/0x210
[  264.724233][ T4828]  ? __init_swait_queue_head+0xa5/0x150
[  264.729810][ T4828]  gfs2_sys_fs_add+0x234/0x480
[  264.734599][ T4828]  ? gfs2_recover_set+0x240/0x240
[  264.739651][ T4828]  ? snprintf+0xd7/0x120
[  264.744015][ T4828]  ? __free_pages+0x95/0x1a0
[  264.748728][ T4828]  ? vscnprintf+0x80/0x80
[  264.753095][ T4828]  gfs2_fill_super+0x128d/0x1f50
[  264.758067][ T4828]  ? gfs2_reconfigure+0xcd0/0xcd0
[  264.763120][ T4828]  ? preempt_count_add+0x8d/0x190
[  264.768174][ T4828]  ? sb_set_blocksize+0xa5/0xe0
[  264.773051][ T4828]  get_tree_bdev+0x3f1/0x610
[  264.777667][ T4828]  ? gfs2_reconfigure+0xcd0/0xcd0
[  264.782804][ T4828]  gfs2_get_tree+0x4d/0x1e0
[  264.787396][ T4828]  vfs_get_tree+0x88/0x270
[  264.791842][ T4828]  do_new_mount+0x24a/0xa40
[  264.796374][ T4828]  __se_sys_mount+0x2d6/0x3c0
[  264.801157][ T4828]  ? __x64_sys_mount+0xc0/0xc0
[  264.805933][ T4828]  ? lockdep_hardirqs_on+0x94/0x140
[  264.811142][ T4828]  ? __x64_sys_mount+0x1c/0xc0
[  264.815929][ T4828]  do_syscall_64+0x4c/0xa0
[  264.820456][ T4828]  ? clear_bhb_loop+0x30/0x80
[  264.825152][ T4828]  ? clear_bhb_loop+0x30/0x80
[  264.829945][ T4828]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  264.835870][ T4828] RIP: 0033:0x7f303caf138a
[  264.840309][ T4828] 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
[  264.859940][ T4828] RSP: 002b:00007ffc72ab5aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  264.868471][ T4828] RAX: ffffffffffffffda RBX: 00007ffc72ab5b30 RCX: 00007f303caf138a
[  264.876465][ T4828] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffc72ab5af0
[  264.884464][ T4828] RBP: 0000200000000400 R08: 00007ffc72ab5b30 R09: 0000000000000000
[  264.892583][ T4828] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  264.900578][ T4828] R13: 00007ffc72ab5af0 R14: 00000000000125ed R15: 0000200000000640
[  264.908590][ T4828]  </TASK>
[  264.911829][ T4829] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  264.912964][ T4828] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  264.919318][ T4829] CPU: 0 PID: 4829 Comm: syz.2.368 Not tainted syzkaller #0
[  264.919341][ T4829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  264.919353][ T4829] Call Trace:
[  264.919361][ T4829]  <TASK>
[  264.919377][ T4829]  dump_stack_lvl+0x168/0x230
[  264.919408][ T4829]  ? show_regs_print_info+0x20/0x20
[  264.919431][ T4829]  ? load_image+0x3b0/0x3b0
[  264.919465][ T4829]  sysfs_create_dir_ns+0x252/0x280
[  264.919489][ T4829]  ? __lock_acquire+0x7c60/0x7c60
[  264.919513][ T4829]  ? sysfs_warn_dup+0xa0/0xa0
[  264.919540][ T4829]  ? do_raw_spin_unlock+0x11d/0x230
[  264.919564][ T4829]  kobject_add_internal+0x662/0xd00
[  264.932691][ T4828] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  264.939952][ T4829]  kobject_init_and_add+0x122/0x190
[  264.939977][ T4829]  ? lockdep_softirqs_off+0x420/0x420
[  264.950718][ T4830] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  264.954078][ T4829]  ? kobject_add+0x210/0x210
[  265.025644][ T4829]  ? __init_swait_queue_head+0xa5/0x150
[  265.031303][ T4829]  gfs2_sys_fs_add+0x234/0x480
[  265.036073][ T4829]  ? gfs2_recover_set+0x240/0x240
[  265.041098][ T4829]  ? snprintf+0xd7/0x120
[  265.045344][ T4829]  ? __free_pages+0x95/0x1a0
[  265.050286][ T4829]  ? vscnprintf+0x80/0x80
[  265.054716][ T4829]  gfs2_fill_super+0x128d/0x1f50
[  265.059673][ T4829]  ? gfs2_reconfigure+0xcd0/0xcd0
[  265.064700][ T4829]  ? preempt_count_add+0x8d/0x190
[  265.069740][ T4829]  ? sb_set_blocksize+0xa5/0xe0
[  265.074594][ T4829]  get_tree_bdev+0x3f1/0x610
[  265.079186][ T4829]  ? gfs2_reconfigure+0xcd0/0xcd0
[  265.084212][ T4829]  gfs2_get_tree+0x4d/0x1e0
[  265.088720][ T4829]  vfs_get_tree+0x88/0x270
[  265.093138][ T4829]  do_new_mount+0x24a/0xa40
[  265.097649][ T4829]  __se_sys_mount+0x2d6/0x3c0
[  265.102353][ T4829]  ? __x64_sys_mount+0xc0/0xc0
[  265.107122][ T4829]  ? lockdep_hardirqs_on+0x94/0x140
[  265.112321][ T4829]  ? __x64_sys_mount+0x1c/0xc0
[  265.117085][ T4829]  do_syscall_64+0x4c/0xa0
[  265.121496][ T4829]  ? clear_bhb_loop+0x30/0x80
[  265.126205][ T4829]  ? clear_bhb_loop+0x30/0x80
[  265.130878][ T4829]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  265.136770][ T4829] RIP: 0033:0x7f96b862d38a
[  265.141186][ T4829] 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
[  265.160794][ T4829] RSP: 002b:00007ffd68b69448 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  265.169209][ T4829] RAX: ffffffffffffffda RBX: 00007ffd68b694d0 RCX: 00007f96b862d38a
[  265.177175][ T4829] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd68b69490
[  265.185161][ T4829] RBP: 0000200000000400 R08: 00007ffd68b694d0 R09: 0000000000000000
[  265.193330][ T4829] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  265.201320][ T4829] R13: 00007ffd68b69490 R14: 00000000000125ed R15: 0000200000000640
[  265.209322][ T4829]  </TASK>
[  265.212343][ T4830] CPU: 1 PID: 4830 Comm: syz.0.369 Not tainted syzkaller #0
[  265.219661][ T4830] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  265.229733][ T4830] Call Trace:
[  265.233031][ T4830]  <TASK>
[  265.236062][ T4830]  dump_stack_lvl+0x168/0x230
[  265.240855][ T4830]  ? show_regs_print_info+0x20/0x20
[  265.246074][ T4830]  ? load_image+0x3b0/0x3b0
[  265.250726][ T4830]  sysfs_create_dir_ns+0x252/0x280
[  265.255977][ T4830]  ? __lock_acquire+0x7c60/0x7c60
[  265.261117][ T4830]  ? sysfs_warn_dup+0xa0/0xa0
[  265.265818][ T4830]  ? do_raw_spin_unlock+0x11d/0x230
[  265.271041][ T4830]  kobject_add_internal+0x662/0xd00
[  265.276274][ T4830]  kobject_init_and_add+0x122/0x190
[  265.276619][ T4829] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  265.281483][ T4830]  ? lockdep_softirqs_off+0x420/0x420
[  265.294879][ T4829] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  265.300298][ T4830]  ? kobject_add+0x210/0x210
[  265.300326][ T4830]  ? __init_swait_queue_head+0xa5/0x150
[  265.317028][ T4830]  gfs2_sys_fs_add+0x234/0x480
[  265.321826][ T4830]  ? gfs2_recover_set+0x240/0x240
[  265.326875][ T4830]  ? snprintf+0xd7/0x120
[  265.331139][ T4830]  ? __free_pages+0x95/0x1a0
[  265.335758][ T4830]  ? vscnprintf+0x80/0x80
[  265.340292][ T4830]  gfs2_fill_super+0x128d/0x1f50
[  265.345269][ T4830]  ? gfs2_reconfigure+0xcd0/0xcd0
[  265.350322][ T4830]  ? preempt_count_add+0x8d/0x190
[  265.355385][ T4830]  ? sb_set_blocksize+0xa5/0xe0
[  265.360259][ T4830]  get_tree_bdev+0x3f1/0x610
[  265.365131][ T4830]  ? gfs2_reconfigure+0xcd0/0xcd0
[  265.370249][ T4830]  gfs2_get_tree+0x4d/0x1e0
[  265.374769][ T4830]  vfs_get_tree+0x88/0x270
[  265.379208][ T4830]  do_new_mount+0x24a/0xa40
[  265.383738][ T4830]  __se_sys_mount+0x2d6/0x3c0
[  265.388438][ T4830]  ? __x64_sys_mount+0xc0/0xc0
[  265.393316][ T4830]  ? lockdep_hardirqs_on+0x94/0x140
[  265.398528][ T4830]  ? __x64_sys_mount+0x1c/0xc0
[  265.403316][ T4830]  do_syscall_64+0x4c/0xa0
[  265.407745][ T4830]  ? clear_bhb_loop+0x30/0x80
[  265.412435][ T4830]  ? clear_bhb_loop+0x30/0x80
[  265.417131][ T4830]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  265.423131][ T4830] RIP: 0033:0x7f9530bc438a
[  265.427689][ T4830] 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
[  265.447711][ T4830] RSP: 002b:00007ffd38ead2c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  265.456154][ T4830] RAX: ffffffffffffffda RBX: 00007ffd38ead350 RCX: 00007f9530bc438a
[  265.464239][ T4830] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd38ead310
[  265.472241][ T4830] RBP: 0000200000000400 R08: 00007ffd38ead350 R09: 0000000000000000
[  265.480239][ T4830] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  265.488332][ T4830] R13: 00007ffd38ead310 R14: 00000000000125ed R15: 0000200000000640
[  265.496389][ T4830]  </TASK>
[  265.499494][ T4830] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  265.512656][ T4830] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  265.639296][ T4831] loop5: detected capacity change from 0 to 32768
[  265.898506][ T4833] loop4: detected capacity change from 0 to 32768
[  266.040160][ T4833] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  266.047683][ T4833] CPU: 0 PID: 4833 Comm: syz.4.373 Not tainted syzkaller #0
[  266.054977][ T4833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  266.065037][ T4833] Call Trace:
[  266.068334][ T4833]  <TASK>
[  266.071275][ T4833]  dump_stack_lvl+0x168/0x230
[  266.075978][ T4833]  ? show_regs_print_info+0x20/0x20
[  266.081202][ T4833]  ? load_image+0x3b0/0x3b0
[  266.085742][ T4833]  sysfs_create_dir_ns+0x252/0x280
[  266.090880][ T4833]  ? __lock_acquire+0x7c60/0x7c60
[  266.095927][ T4833]  ? sysfs_warn_dup+0xa0/0xa0
[  266.100628][ T4833]  ? do_raw_spin_unlock+0x11d/0x230
[  266.105849][ T4833]  kobject_add_internal+0x662/0xd00
[  266.111078][ T4833]  kobject_init_and_add+0x122/0x190
[  266.116293][ T4833]  ? lockdep_softirqs_off+0x420/0x420
[  266.121691][ T4833]  ? kobject_add+0x210/0x210
[  266.126307][ T4833]  ? __init_swait_queue_head+0xa5/0x150
[  266.131884][ T4833]  gfs2_sys_fs_add+0x234/0x480
[  266.136670][ T4833]  ? gfs2_recover_set+0x240/0x240
[  266.141714][ T4833]  ? snprintf+0xd7/0x120
[  266.145979][ T4833]  ? __free_pages+0x95/0x1a0
[  266.150598][ T4833]  ? vscnprintf+0x80/0x80
[  266.154963][ T4833]  gfs2_fill_super+0x128d/0x1f50
[  266.159944][ T4833]  ? gfs2_reconfigure+0xcd0/0xcd0
[  266.164995][ T4833]  ? preempt_count_add+0x8d/0x190
[  266.170053][ T4833]  ? sb_set_blocksize+0xa5/0xe0
[  266.174931][ T4833]  get_tree_bdev+0x3f1/0x610
[  266.179549][ T4833]  ? gfs2_reconfigure+0xcd0/0xcd0
[  266.184602][ T4833]  gfs2_get_tree+0x4d/0x1e0
[  266.189129][ T4833]  vfs_get_tree+0x88/0x270
[  266.193577][ T4833]  do_new_mount+0x24a/0xa40
[  266.198106][ T4833]  __se_sys_mount+0x2d6/0x3c0
[  266.202807][ T4833]  ? __x64_sys_mount+0xc0/0xc0
[  266.207684][ T4833]  ? lockdep_hardirqs_on+0x94/0x140
[  266.212916][ T4833]  ? __x64_sys_mount+0x1c/0xc0
[  266.217701][ T4833]  do_syscall_64+0x4c/0xa0
[  266.222142][ T4833]  ? clear_bhb_loop+0x30/0x80
[  266.226838][ T4833]  ? clear_bhb_loop+0x30/0x80
[  266.231534][ T4833]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  266.232038][ T4832] loop2: detected capacity change from 0 to 32768
[  266.237452][ T4833] RIP: 0033:0x7faf0dd0538a
[  266.237482][ T4833] 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
[  266.237500][ T4833] RSP: 002b:00007ffe06a49088 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  266.276519][ T4833] RAX: ffffffffffffffda RBX: 00007ffe06a49110 RCX: 00007faf0dd0538a
[  266.284508][ T4833] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe06a490d0
[  266.292504][ T4833] RBP: 0000200000000400 R08: 00007ffe06a49110 R09: 0000000000000000
[  266.300490][ T4833] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  266.308474][ T4833] R13: 00007ffe06a490d0 R14: 00000000000125ed R15: 0000200000000640
[  266.316459][ T4833]  </TASK>
[  266.317617][ T4834] loop0: detected capacity change from 0 to 32768
[  266.319544][ T4833] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  266.339023][ T4833] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  266.350488][ T4831] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  266.357926][ T4831] CPU: 0 PID: 4831 Comm: syz.5.370 Not tainted syzkaller #0
[  266.359533][ T4832] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  266.365226][ T4831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  266.365241][ T4831] Call Trace:
[  266.365249][ T4831]  <TASK>
[  266.365258][ T4831]  dump_stack_lvl+0x168/0x230
[  266.365289][ T4831]  ? show_regs_print_info+0x20/0x20
[  266.398723][ T4831]  ? load_image+0x3b0/0x3b0
[  266.403269][ T4831]  sysfs_create_dir_ns+0x252/0x280
[  266.408389][ T4831]  ? __lock_acquire+0x7c60/0x7c60
[  266.413418][ T4831]  ? sysfs_warn_dup+0xa0/0xa0
[  266.418097][ T4831]  ? do_raw_spin_unlock+0x11d/0x230
[  266.423303][ T4831]  kobject_add_internal+0x662/0xd00
[  266.428507][ T4831]  kobject_init_and_add+0x122/0x190
[  266.433701][ T4831]  ? lockdep_softirqs_off+0x420/0x420
[  266.439074][ T4831]  ? kobject_add+0x210/0x210
[  266.443673][ T4831]  ? __init_swait_queue_head+0xa5/0x150
[  266.449230][ T4831]  gfs2_sys_fs_add+0x234/0x480
[  266.453998][ T4831]  ? gfs2_recover_set+0x240/0x240
[  266.459229][ T4831]  ? snprintf+0xd7/0x120
[  266.463568][ T4831]  ? __free_pages+0x95/0x1a0
[  266.468195][ T4831]  ? vscnprintf+0x80/0x80
[  266.472533][ T4831]  gfs2_fill_super+0x128d/0x1f50
[  266.477570][ T4831]  ? gfs2_reconfigure+0xcd0/0xcd0
[  266.482595][ T4831]  ? preempt_count_add+0x8d/0x190
[  266.487632][ T4831]  ? sb_set_blocksize+0xa5/0xe0
[  266.492483][ T4831]  get_tree_bdev+0x3f1/0x610
[  266.497073][ T4831]  ? gfs2_reconfigure+0xcd0/0xcd0
[  266.502100][ T4831]  gfs2_get_tree+0x4d/0x1e0
[  266.506602][ T4831]  vfs_get_tree+0x88/0x270
[  266.511021][ T4831]  do_new_mount+0x24a/0xa40
[  266.515528][ T4831]  __se_sys_mount+0x2d6/0x3c0
[  266.520217][ T4831]  ? __x64_sys_mount+0xc0/0xc0
[  266.524981][ T4831]  ? lockdep_hardirqs_on+0x94/0x140
[  266.530174][ T4831]  ? __x64_sys_mount+0x1c/0xc0
[  266.534937][ T4831]  do_syscall_64+0x4c/0xa0
[  266.539347][ T4831]  ? clear_bhb_loop+0x30/0x80
[  266.544126][ T4831]  ? clear_bhb_loop+0x30/0x80
[  266.548888][ T4831]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  266.554779][ T4831] RIP: 0033:0x7f189ed2638a
[  266.559195][ T4831] 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
[  266.578901][ T4831] RSP: 002b:00007ffd7103d4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  266.587318][ T4831] RAX: ffffffffffffffda RBX: 00007ffd7103d540 RCX: 00007f189ed2638a
[  266.595296][ T4831] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd7103d500
[  266.603263][ T4831] RBP: 0000200000000400 R08: 00007ffd7103d540 R09: 0000000000000000
[  266.611235][ T4831] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  266.619209][ T4831] R13: 00007ffd7103d500 R14: 00000000000125ed R15: 0000200000000640
[  266.627194][ T4831]  </TASK>
[  266.630212][ T4832] CPU: 1 PID: 4832 Comm: syz.2.372 Not tainted syzkaller #0
[  266.630322][ T4831] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  266.637512][ T4832] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  266.637527][ T4832] Call Trace:
[  266.637534][ T4832]  <TASK>
[  266.637543][ T4832]  dump_stack_lvl+0x168/0x230
[  266.650661][ T4831] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  266.660690][ T4832]  ? show_regs_print_info+0x20/0x20
[  266.660716][ T4832]  ? load_image+0x3b0/0x3b0
[  266.687797][ T4832]  sysfs_create_dir_ns+0x252/0x280
[  266.692936][ T4832]  ? __lock_acquire+0x7c60/0x7c60
[  266.697977][ T4832]  ? sysfs_warn_dup+0xa0/0xa0
[  266.702676][ T4832]  ? do_raw_spin_unlock+0x11d/0x230
[  266.707984][ T4832]  kobject_add_internal+0x662/0xd00
[  266.713291][ T4832]  kobject_init_and_add+0x122/0x190
[  266.718503][ T4832]  ? lockdep_softirqs_off+0x420/0x420
[  266.723899][ T4832]  ? kobject_add+0x210/0x210
[  266.728508][ T4832]  ? __init_swait_queue_head+0xa5/0x150
[  266.734081][ T4832]  gfs2_sys_fs_add+0x234/0x480
[  266.738867][ T4832]  ? gfs2_recover_set+0x240/0x240
[  266.743911][ T4832]  ? snprintf+0xd7/0x120
[  266.748170][ T4832]  ? __free_pages+0x95/0x1a0
[  266.752781][ T4832]  ? vscnprintf+0x80/0x80
[  266.757143][ T4832]  gfs2_fill_super+0x128d/0x1f50
[  266.762118][ T4832]  ? gfs2_reconfigure+0xcd0/0xcd0
[  266.767170][ T4832]  ? preempt_count_add+0x8d/0x190
[  266.772227][ T4832]  ? sb_set_blocksize+0xa5/0xe0
[  266.777120][ T4832]  get_tree_bdev+0x3f1/0x610
[  266.781738][ T4832]  ? gfs2_reconfigure+0xcd0/0xcd0
[  266.786787][ T4832]  gfs2_get_tree+0x4d/0x1e0
[  266.791316][ T4832]  vfs_get_tree+0x88/0x270
[  266.795750][ T4832]  do_new_mount+0x24a/0xa40
[  266.800277][ T4832]  __se_sys_mount+0x2d6/0x3c0
[  266.804981][ T4832]  ? __x64_sys_mount+0xc0/0xc0
[  266.809767][ T4832]  ? lockdep_hardirqs_on+0x94/0x140
[  266.814978][ T4832]  ? __x64_sys_mount+0x1c/0xc0
[  266.819756][ T4832]  do_syscall_64+0x4c/0xa0
[  266.824188][ T4832]  ? clear_bhb_loop+0x30/0x80
[  266.828877][ T4832]  ? clear_bhb_loop+0x30/0x80
[  266.833565][ T4832]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  266.839478][ T4832] RIP: 0033:0x7f96b862d38a
[  266.843908][ T4832] 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
[  266.863700][ T4832] RSP: 002b:00007ffd68b69448 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  266.872223][ T4832] RAX: ffffffffffffffda RBX: 00007ffd68b694d0 RCX: 00007f96b862d38a
[  266.880210][ T4832] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd68b69490
[  266.888197][ T4832] RBP: 0000200000000400 R08: 00007ffd68b694d0 R09: 0000000000000000
[  266.896185][ T4832] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  266.904253][ T4832] R13: 00007ffd68b69490 R14: 00000000000125ed R15: 0000200000000640
[  266.912344][ T4832]  </TASK>
[  266.916050][ T4832] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  266.929371][ T4832] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  266.950123][ T4834] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  266.957564][ T4834] CPU: 1 PID: 4834 Comm: syz.0.371 Not tainted syzkaller #0
[  266.964886][ T4834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  266.974963][ T4834] Call Trace:
[  266.978260][ T4834]  <TASK>
[  266.981209][ T4834]  dump_stack_lvl+0x168/0x230
[  266.985922][ T4834]  ? show_regs_print_info+0x20/0x20
[  266.991143][ T4834]  ? load_image+0x3b0/0x3b0
[  266.995686][ T4834]  sysfs_create_dir_ns+0x252/0x280
[  267.000822][ T4834]  ? __lock_acquire+0x7c60/0x7c60
[  267.005863][ T4834]  ? sysfs_warn_dup+0xa0/0xa0
[  267.010565][ T4834]  ? do_raw_spin_unlock+0x11d/0x230
[  267.015787][ T4834]  kobject_add_internal+0x662/0xd00
[  267.021009][ T4834]  kobject_init_and_add+0x122/0x190
[  267.026250][ T4834]  ? lockdep_softirqs_off+0x420/0x420
[  267.031643][ T4834]  ? kobject_add+0x210/0x210
[  267.036254][ T4834]  ? __init_swait_queue_head+0xa5/0x150
[  267.041825][ T4834]  gfs2_sys_fs_add+0x234/0x480
[  267.046622][ T4834]  ? gfs2_recover_set+0x240/0x240
[  267.051667][ T4834]  ? snprintf+0xd7/0x120
[  267.055929][ T4834]  ? __free_pages+0x95/0x1a0
[  267.060542][ T4834]  ? vscnprintf+0x80/0x80
[  267.064905][ T4834]  gfs2_fill_super+0x128d/0x1f50
[  267.069870][ T4834]  ? gfs2_reconfigure+0xcd0/0xcd0
[  267.074920][ T4834]  ? preempt_count_add+0x8d/0x190
[  267.079985][ T4834]  ? sb_set_blocksize+0xa5/0xe0
[  267.084859][ T4834]  get_tree_bdev+0x3f1/0x610
[  267.089467][ T4834]  ? gfs2_reconfigure+0xcd0/0xcd0
[  267.094521][ T4834]  gfs2_get_tree+0x4d/0x1e0
[  267.099050][ T4834]  vfs_get_tree+0x88/0x270
[  267.103493][ T4834]  do_new_mount+0x24a/0xa40
[  267.108028][ T4834]  __se_sys_mount+0x2d6/0x3c0
[  267.112828][ T4834]  ? __x64_sys_mount+0xc0/0xc0
[  267.117621][ T4834]  ? lockdep_hardirqs_on+0x94/0x140
[  267.122831][ T4834]  ? __x64_sys_mount+0x1c/0xc0
[  267.127589][ T4834]  do_syscall_64+0x4c/0xa0
[  267.132021][ T4834]  ? clear_bhb_loop+0x30/0x80
[  267.136773][ T4834]  ? clear_bhb_loop+0x30/0x80
[  267.141463][ T4834]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  267.147383][ T4834] RIP: 0033:0x7f9530bc438a
[  267.151801][ T4834] 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
[  267.171400][ T4834] RSP: 002b:00007ffd38ead2c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  267.179803][ T4834] RAX: ffffffffffffffda RBX: 00007ffd38ead350 RCX: 00007f9530bc438a
[  267.187796][ T4834] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd38ead310
[  267.195774][ T4834] RBP: 0000200000000400 R08: 00007ffd38ead350 R09: 0000000000000000
[  267.203725][ T4834] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  267.211672][ T4834] R13: 00007ffd38ead310 R14: 00000000000125ed R15: 0000200000000640
[  267.219648][ T4834]  </TASK>
[  267.223562][ T4834] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  267.236842][ T4834] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  267.273001][ T4835] loop1: detected capacity change from 0 to 32768
[  267.718085][ T4837] loop5: detected capacity change from 0 to 32768
[  267.739026][ T4835] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  267.746628][ T4835] CPU: 1 PID: 4835 Comm: syz.1.374 Not tainted syzkaller #0
[  267.753945][ T4835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  267.764103][ T4835] Call Trace:
[  267.767406][ T4835]  <TASK>
[  267.770351][ T4835]  dump_stack_lvl+0x168/0x230
[  267.775052][ T4835]  ? show_regs_print_info+0x20/0x20
[  267.780274][ T4835]  ? load_image+0x3b0/0x3b0
[  267.784814][ T4835]  sysfs_create_dir_ns+0x252/0x280
[  267.789948][ T4835]  ? __lock_acquire+0x7c60/0x7c60
[  267.795004][ T4835]  ? sysfs_warn_dup+0xa0/0xa0
[  267.799727][ T4835]  ? do_raw_spin_unlock+0x11d/0x230
[  267.804948][ T4835]  kobject_add_internal+0x662/0xd00
[  267.810266][ T4835]  kobject_init_and_add+0x122/0x190
[  267.815483][ T4835]  ? lockdep_softirqs_off+0x420/0x420
[  267.820880][ T4835]  ? kobject_add+0x210/0x210
[  267.825496][ T4835]  ? __init_swait_queue_head+0xa5/0x150
[  267.831077][ T4835]  gfs2_sys_fs_add+0x234/0x480
[  267.835860][ T4835]  ? gfs2_recover_set+0x240/0x240
[  267.840905][ T4835]  ? snprintf+0xd7/0x120
[  267.845178][ T4835]  ? __free_pages+0x95/0x1a0
[  267.849796][ T4835]  ? vscnprintf+0x80/0x80
[  267.854153][ T4835]  gfs2_fill_super+0x128d/0x1f50
[  267.859136][ T4835]  ? gfs2_reconfigure+0xcd0/0xcd0
[  267.864268][ T4835]  ? preempt_count_add+0x8d/0x190
[  267.869321][ T4835]  ? sb_set_blocksize+0xa5/0xe0
[  267.874206][ T4835]  get_tree_bdev+0x3f1/0x610
[  267.878814][ T4835]  ? gfs2_reconfigure+0xcd0/0xcd0
[  267.883942][ T4835]  gfs2_get_tree+0x4d/0x1e0
[  267.886402][ T4836] loop4: detected capacity change from 0 to 32768
[  267.888459][ T4835]  vfs_get_tree+0x88/0x270
[  267.888486][ T4835]  do_new_mount+0x24a/0xa40
[  267.903823][ T4835]  __se_sys_mount+0x2d6/0x3c0
[  267.908534][ T4835]  ? __x64_sys_mount+0xc0/0xc0
[  267.913323][ T4835]  ? lockdep_hardirqs_on+0x94/0x140
[  267.918638][ T4835]  ? __x64_sys_mount+0x1c/0xc0
[  267.923428][ T4835]  do_syscall_64+0x4c/0xa0
[  267.927859][ T4835]  ? clear_bhb_loop+0x30/0x80
[  267.932552][ T4835]  ? clear_bhb_loop+0x30/0x80
[  267.937255][ T4835]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  267.943160][ T4835] RIP: 0033:0x7f303caf138a
[  267.947592][ T4835] 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
[  267.967224][ T4835] RSP: 002b:00007ffc72ab5aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  267.975752][ T4835] RAX: ffffffffffffffda RBX: 00007ffc72ab5b30 RCX: 00007f303caf138a
[  267.983744][ T4835] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffc72ab5af0
[  267.991729][ T4835] RBP: 0000200000000400 R08: 00007ffc72ab5b30 R09: 0000000000000000
[  267.999715][ T4835] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  268.007734][ T4835] R13: 00007ffc72ab5af0 R14: 00000000000125ed R15: 0000200000000640
[  268.015734][ T4835]  </TASK>
[  268.020060][ T4835] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  268.033307][ T4835] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  268.208012][ T4839] loop0: detected capacity change from 0 to 32768
[  268.250129][ T4837] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  268.257691][ T4837] CPU: 0 PID: 4837 Comm: syz.5.375 Not tainted syzkaller #0
[  268.265001][ T4837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  268.275074][ T4837] Call Trace:
[  268.278376][ T4837]  <TASK>
[  268.281338][ T4837]  dump_stack_lvl+0x168/0x230
[  268.286051][ T4837]  ? show_regs_print_info+0x20/0x20
[  268.291271][ T4837]  ? load_image+0x3b0/0x3b0
[  268.295898][ T4837]  sysfs_create_dir_ns+0x252/0x280
[  268.301120][ T4837]  ? __lock_acquire+0x7c60/0x7c60
[  268.306168][ T4837]  ? sysfs_warn_dup+0xa0/0xa0
[  268.310868][ T4837]  ? do_raw_spin_unlock+0x11d/0x230
[  268.316086][ T4837]  kobject_add_internal+0x662/0xd00
[  268.321317][ T4837]  kobject_init_and_add+0x122/0x190
[  268.326540][ T4837]  ? lockdep_softirqs_off+0x420/0x420
[  268.331945][ T4837]  ? kobject_add+0x210/0x210
[  268.336557][ T4837]  ? __init_swait_queue_head+0xa5/0x150
[  268.342126][ T4837]  gfs2_sys_fs_add+0x234/0x480
[  268.346909][ T4837]  ? gfs2_recover_set+0x240/0x240
[  268.351957][ T4837]  ? snprintf+0xd7/0x120
[  268.356218][ T4837]  ? __free_pages+0x95/0x1a0
[  268.360828][ T4837]  ? vscnprintf+0x80/0x80
[  268.365192][ T4837]  gfs2_fill_super+0x128d/0x1f50
[  268.370173][ T4837]  ? gfs2_reconfigure+0xcd0/0xcd0
[  268.373160][ T4838] loop2: detected capacity change from 0 to 32768
[  268.375214][ T4837]  ? preempt_count_add+0x8d/0x190
[  268.386818][ T4837]  ? sb_set_blocksize+0xa5/0xe0
[  268.391712][ T4837]  get_tree_bdev+0x3f1/0x610
[  268.396334][ T4837]  ? gfs2_reconfigure+0xcd0/0xcd0
[  268.401493][ T4837]  gfs2_get_tree+0x4d/0x1e0
[  268.406017][ T4837]  vfs_get_tree+0x88/0x270
[  268.410434][ T4837]  do_new_mount+0x24a/0xa40
[  268.414923][ T4837]  __se_sys_mount+0x2d6/0x3c0
[  268.419632][ T4837]  ? __x64_sys_mount+0xc0/0xc0
[  268.424431][ T4837]  ? lockdep_hardirqs_on+0x94/0x140
[  268.429610][ T4837]  ? __x64_sys_mount+0x1c/0xc0
[  268.434529][ T4837]  do_syscall_64+0x4c/0xa0
[  268.438956][ T4837]  ? clear_bhb_loop+0x30/0x80
[  268.443621][ T4837]  ? clear_bhb_loop+0x30/0x80
[  268.448279][ T4837]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  268.454158][ T4837] RIP: 0033:0x7f189ed2638a
[  268.458614][ T4837] 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
[  268.478214][ T4837] RSP: 002b:00007ffd7103d4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  268.486620][ T4837] RAX: ffffffffffffffda RBX: 00007ffd7103d540 RCX: 00007f189ed2638a
[  268.494588][ T4837] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd7103d500
[  268.502553][ T4837] RBP: 0000200000000400 R08: 00007ffd7103d540 R09: 0000000000000000
[  268.510505][ T4837] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  268.518473][ T4837] R13: 00007ffd7103d500 R14: 00000000000125ed R15: 0000200000000640
[  268.526485][ T4837]  </TASK>
[  268.530750][ T4837] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  268.533679][ T4836] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  268.544174][ T4837] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  268.551497][ T4836] CPU: 1 PID: 4836 Comm: syz.4.376 Not tainted syzkaller #0
[  268.551520][ T4836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  268.565147][ T4839] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  268.565287][ T4836] Call Trace:
[  268.565297][ T4836]  <TASK>
[  268.589039][ T4836]  dump_stack_lvl+0x168/0x230
[  268.593732][ T4836]  ? show_regs_print_info+0x20/0x20
[  268.598935][ T4836]  ? load_image+0x3b0/0x3b0
[  268.603462][ T4836]  sysfs_create_dir_ns+0x252/0x280
[  268.608579][ T4836]  ? __lock_acquire+0x7c60/0x7c60
[  268.613605][ T4836]  ? sysfs_warn_dup+0xa0/0xa0
[  268.618287][ T4836]  ? do_raw_spin_unlock+0x11d/0x230
[  268.623500][ T4836]  kobject_add_internal+0x662/0xd00
[  268.628708][ T4836]  kobject_init_and_add+0x122/0x190
[  268.633910][ T4836]  ? lockdep_softirqs_off+0x420/0x420
[  268.639287][ T4836]  ? kobject_add+0x210/0x210
[  268.643886][ T4836]  ? __init_swait_queue_head+0xa5/0x150
[  268.649532][ T4836]  gfs2_sys_fs_add+0x234/0x480
[  268.654299][ T4836]  ? gfs2_recover_set+0x240/0x240
[  268.659331][ T4836]  ? snprintf+0xd7/0x120
[  268.663578][ T4836]  ? __free_pages+0x95/0x1a0
[  268.668173][ T4836]  ? vscnprintf+0x80/0x80
[  268.672519][ T4836]  gfs2_fill_super+0x128d/0x1f50
[  268.677472][ T4836]  ? gfs2_reconfigure+0xcd0/0xcd0
[  268.682501][ T4836]  ? preempt_count_add+0x8d/0x190
[  268.687544][ T4836]  ? sb_set_blocksize+0xa5/0xe0
[  268.692399][ T4836]  get_tree_bdev+0x3f1/0x610
[  268.696988][ T4836]  ? gfs2_reconfigure+0xcd0/0xcd0
[  268.702014][ T4836]  gfs2_get_tree+0x4d/0x1e0
[  268.706520][ T4836]  vfs_get_tree+0x88/0x270
[  268.710945][ T4836]  do_new_mount+0x24a/0xa40
[  268.715458][ T4836]  __se_sys_mount+0x2d6/0x3c0
[  268.720139][ T4836]  ? __x64_sys_mount+0xc0/0xc0
[  268.724913][ T4836]  ? lockdep_hardirqs_on+0x94/0x140
[  268.730115][ T4836]  ? __x64_sys_mount+0x1c/0xc0
[  268.734878][ T4836]  do_syscall_64+0x4c/0xa0
[  268.739296][ T4836]  ? clear_bhb_loop+0x30/0x80
[  268.743983][ T4836]  ? clear_bhb_loop+0x30/0x80
[  268.748659][ T4836]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  268.754550][ T4836] RIP: 0033:0x7faf0dd0538a
[  268.758969][ T4836] 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
[  268.778578][ T4836] RSP: 002b:00007ffe06a49088 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  268.787005][ T4836] RAX: ffffffffffffffda RBX: 00007ffe06a49110 RCX: 00007faf0dd0538a
[  268.794978][ T4836] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe06a490d0
[  268.802952][ T4836] RBP: 0000200000000400 R08: 00007ffe06a49110 R09: 0000000000000000
[  268.810933][ T4836] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  268.819078][ T4836] R13: 00007ffe06a490d0 R14: 00000000000125ed R15: 0000200000000640
[  268.827066][ T4836]  </TASK>
[  268.830083][ T4839] CPU: 0 PID: 4839 Comm: syz.0.377 Not tainted syzkaller #0
[  268.830849][ T4836] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  268.837385][ T4839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  268.837400][ T4839] Call Trace:
[  268.837407][ T4839]  <TASK>
[  268.837416][ T4839]  dump_stack_lvl+0x168/0x230
[  268.850516][ T4836] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  268.860545][ T4839]  ? show_regs_print_info+0x20/0x20
[  268.879299][ T4838] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  268.883110][ T4839]  ? load_image+0x3b0/0x3b0
[  268.894973][ T4839]  sysfs_create_dir_ns+0x252/0x280
[  268.900086][ T4839]  ? __lock_acquire+0x7c60/0x7c60
[  268.905109][ T4839]  ? sysfs_warn_dup+0xa0/0xa0
[  268.909794][ T4839]  ? do_raw_spin_unlock+0x11d/0x230
[  268.914995][ T4839]  kobject_add_internal+0x662/0xd00
[  268.920201][ T4839]  kobject_init_and_add+0x122/0x190
[  268.925405][ T4839]  ? lockdep_softirqs_off+0x420/0x420
[  268.930782][ T4839]  ? kobject_add+0x210/0x210
[  268.935645][ T4839]  ? __init_swait_queue_head+0xa5/0x150
[  268.941204][ T4839]  gfs2_sys_fs_add+0x234/0x480
[  268.945972][ T4839]  ? gfs2_recover_set+0x240/0x240
[  268.950991][ T4839]  ? snprintf+0xd7/0x120
[  268.955234][ T4839]  ? __free_pages+0x95/0x1a0
[  268.959828][ T4839]  ? vscnprintf+0x80/0x80
[  268.964171][ T4839]  gfs2_fill_super+0x128d/0x1f50
[  268.969129][ T4839]  ? gfs2_reconfigure+0xcd0/0xcd0
[  268.974157][ T4839]  ? preempt_count_add+0x8d/0x190
[  268.979256][ T4839]  ? sb_set_blocksize+0xa5/0xe0
[  268.984111][ T4839]  get_tree_bdev+0x3f1/0x610
[  268.988705][ T4839]  ? gfs2_reconfigure+0xcd0/0xcd0
[  268.993735][ T4839]  gfs2_get_tree+0x4d/0x1e0
[  268.998238][ T4839]  vfs_get_tree+0x88/0x270
[  269.002658][ T4839]  do_new_mount+0x24a/0xa40
[  269.007166][ T4839]  __se_sys_mount+0x2d6/0x3c0
[  269.011853][ T4839]  ? __x64_sys_mount+0xc0/0xc0
[  269.016625][ T4839]  ? lockdep_hardirqs_on+0x94/0x140
[  269.021822][ T4839]  ? __x64_sys_mount+0x1c/0xc0
[  269.026588][ T4839]  do_syscall_64+0x4c/0xa0
[  269.031005][ T4839]  ? clear_bhb_loop+0x30/0x80
[  269.035685][ T4839]  ? clear_bhb_loop+0x30/0x80
[  269.040388][ T4839]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  269.046280][ T4839] RIP: 0033:0x7f9530bc438a
[  269.050697][ T4839] 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
[  269.070304][ T4839] RSP: 002b:00007ffd38ead2c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  269.078724][ T4839] RAX: ffffffffffffffda RBX: 00007ffd38ead350 RCX: 00007f9530bc438a
[  269.086789][ T4839] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd38ead310
[  269.094760][ T4839] RBP: 0000200000000400 R08: 00007ffd38ead350 R09: 0000000000000000
[  269.102731][ T4839] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  269.110967][ T4839] R13: 00007ffd38ead310 R14: 00000000000125ed R15: 0000200000000640
[  269.118952][ T4839]  </TASK>
[  269.121969][ T4838] CPU: 1 PID: 4838 Comm: syz.2.378 Not tainted syzkaller #0
[  269.122053][ T4839] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  269.129267][ T4838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  269.129282][ T4838] Call Trace:
[  269.129290][ T4838]  <TASK>
[  269.129298][ T4838]  dump_stack_lvl+0x168/0x230
[  269.142426][ T4839] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  269.152457][ T4838]  ? show_regs_print_info+0x20/0x20
[  269.152483][ T4838]  ? load_image+0x3b0/0x3b0
[  269.179520][ T4838]  sysfs_create_dir_ns+0x252/0x280
[  269.184658][ T4838]  ? __lock_acquire+0x7c60/0x7c60
[  269.189706][ T4838]  ? sysfs_warn_dup+0xa0/0xa0
[  269.194411][ T4838]  ? do_raw_spin_unlock+0x11d/0x230
[  269.199624][ T4838]  kobject_add_internal+0x662/0xd00
[  269.204842][ T4838]  kobject_init_and_add+0x122/0x190
[  269.210057][ T4838]  ? lockdep_softirqs_off+0x420/0x420
[  269.215570][ T4838]  ? kobject_add+0x210/0x210
[  269.220294][ T4838]  ? __init_swait_queue_head+0xa5/0x150
[  269.225866][ T4838]  gfs2_sys_fs_add+0x234/0x480
[  269.230659][ T4838]  ? gfs2_recover_set+0x240/0x240
[  269.235712][ T4838]  ? snprintf+0xd7/0x120
[  269.239975][ T4838]  ? __free_pages+0x95/0x1a0
[  269.244605][ T4838]  ? vscnprintf+0x80/0x80
[  269.249021][ T4838]  gfs2_fill_super+0x128d/0x1f50
[  269.254004][ T4838]  ? gfs2_reconfigure+0xcd0/0xcd0
[  269.259070][ T4838]  ? preempt_count_add+0x8d/0x190
[  269.264131][ T4838]  ? sb_set_blocksize+0xa5/0xe0
[  269.269008][ T4838]  get_tree_bdev+0x3f1/0x610
[  269.273619][ T4838]  ? gfs2_reconfigure+0xcd0/0xcd0
[  269.278665][ T4838]  gfs2_get_tree+0x4d/0x1e0
[  269.283191][ T4838]  vfs_get_tree+0x88/0x270
[  269.287630][ T4838]  do_new_mount+0x24a/0xa40
[  269.292172][ T4838]  __se_sys_mount+0x2d6/0x3c0
[  269.296873][ T4838]  ? __x64_sys_mount+0xc0/0xc0
[  269.301666][ T4838]  ? lockdep_hardirqs_on+0x94/0x140
[  269.306966][ T4838]  ? __x64_sys_mount+0x1c/0xc0
[  269.311747][ T4838]  do_syscall_64+0x4c/0xa0
[  269.316179][ T4838]  ? clear_bhb_loop+0x30/0x80
[  269.320872][ T4838]  ? clear_bhb_loop+0x30/0x80
[  269.325568][ T4838]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  269.331483][ T4838] RIP: 0033:0x7f96b862d38a
[  269.335916][ T4838] 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
[  269.355541][ T4838] RSP: 002b:00007ffd68b69448 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  269.363987][ T4838] RAX: ffffffffffffffda RBX: 00007ffd68b694d0 RCX: 00007f96b862d38a
[  269.371985][ T4838] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd68b69490
[  269.379974][ T4838] RBP: 0000200000000400 R08: 00007ffd68b694d0 R09: 0000000000000000
[  269.387955][ T4838] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  269.395937][ T4838] R13: 00007ffd68b69490 R14: 00000000000125ed R15: 0000200000000640
2025/09/01 14:49:36 executed programs: 372
[  269.403945][ T4838]  </TASK>
[  269.408088][ T4838] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  269.421343][ T4838] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  269.570605][ T4840] loop1: detected capacity change from 0 to 32768
[  269.810237][ T4840] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  269.817789][ T4840] CPU: 1 PID: 4840 Comm: syz.1.379 Not tainted syzkaller #0
[  269.825089][ T4840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  269.835171][ T4840] Call Trace:
[  269.838495][ T4840]  <TASK>
[  269.841447][ T4840]  dump_stack_lvl+0x168/0x230
[  269.846164][ T4840]  ? show_regs_print_info+0x20/0x20
[  269.851383][ T4840]  ? load_image+0x3b0/0x3b0
[  269.856096][ T4840]  sysfs_create_dir_ns+0x252/0x280
[  269.861302][ T4840]  ? __lock_acquire+0x7c60/0x7c60
[  269.866356][ T4840]  ? sysfs_warn_dup+0xa0/0xa0
[  269.871068][ T4840]  ? do_raw_spin_unlock+0x11d/0x230
[  269.876290][ T4840]  kobject_add_internal+0x662/0xd00
[  269.881515][ T4840]  kobject_init_and_add+0x122/0x190
[  269.886743][ T4840]  ? lockdep_softirqs_off+0x420/0x420
[  269.892155][ T4840]  ? kobject_add+0x210/0x210
[  269.896774][ T4840]  ? __init_swait_queue_head+0xa5/0x150
[  269.902366][ T4840]  gfs2_sys_fs_add+0x234/0x480
[  269.907155][ T4840]  ? gfs2_recover_set+0x240/0x240
[  269.912249][ T4840]  ? snprintf+0xd7/0x120
[  269.916514][ T4840]  ? __free_pages+0x95/0x1a0
[  269.921134][ T4840]  ? vscnprintf+0x80/0x80
[  269.925501][ T4840]  gfs2_fill_super+0x128d/0x1f50
[  269.930528][ T4840]  ? gfs2_reconfigure+0xcd0/0xcd0
[  269.935604][ T4840]  ? preempt_count_add+0x8d/0x190
[  269.940749][ T4840]  ? sb_set_blocksize+0xa5/0xe0
[  269.945629][ T4840]  get_tree_bdev+0x3f1/0x610
[  269.950255][ T4840]  ? gfs2_reconfigure+0xcd0/0xcd0
[  269.955303][ T4840]  gfs2_get_tree+0x4d/0x1e0
[  269.959834][ T4840]  vfs_get_tree+0x88/0x270
[  269.964359][ T4840]  do_new_mount+0x24a/0xa40
[  269.968884][ T4840]  __se_sys_mount+0x2d6/0x3c0
[  269.973591][ T4840]  ? __x64_sys_mount+0xc0/0xc0
[  269.978378][ T4840]  ? lockdep_hardirqs_on+0x94/0x140
[  269.983683][ T4840]  ? __x64_sys_mount+0x1c/0xc0
[  269.988470][ T4840]  do_syscall_64+0x4c/0xa0
[  269.992907][ T4840]  ? clear_bhb_loop+0x30/0x80
[  269.997605][ T4840]  ? clear_bhb_loop+0x30/0x80
[  270.002300][ T4840]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  270.008214][ T4840] RIP: 0033:0x7f303caf138a
[  270.012647][ T4840] 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
[  270.032278][ T4840] RSP: 002b:00007ffc72ab5aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.040721][ T4840] RAX: ffffffffffffffda RBX: 00007ffc72ab5b30 RCX: 00007f303caf138a
[  270.048723][ T4840] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffc72ab5af0
[  270.056731][ T4840] RBP: 0000200000000400 R08: 00007ffc72ab5b30 R09: 0000000000000000
[  270.064726][ T4840] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  270.072718][ T4840] R13: 00007ffc72ab5af0 R14: 00000000000125ed R15: 0000200000000640
[  270.080732][ T4840]  </TASK>
[  270.084625][ T4840] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.099437][ T4840] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.367238][ T4841] loop4: detected capacity change from 0 to 32768
[  270.416400][ T4844] loop2: detected capacity change from 0 to 32768
[  270.588828][ T4842] loop0: detected capacity change from 0 to 32768
[  270.645967][ T4843] loop5: detected capacity change from 0 to 32768
[  270.867522][ T4845] loop1: detected capacity change from 0 to 32768
[  270.876380][ T4843] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.883816][ T4843] CPU: 1 PID: 4843 Comm: syz.5.383 Not tainted syzkaller #0
[  270.891117][ T4843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  270.901456][ T4843] Call Trace:
[  270.904756][ T4843]  <TASK>
[  270.907705][ T4843]  dump_stack_lvl+0x168/0x230
[  270.912409][ T4843]  ? show_regs_print_info+0x20/0x20
[  270.917630][ T4843]  ? load_image+0x3b0/0x3b0
[  270.922166][ T4843]  sysfs_create_dir_ns+0x252/0x280
[  270.927320][ T4843]  ? __lock_acquire+0x7c60/0x7c60
[  270.932372][ T4843]  ? sysfs_warn_dup+0xa0/0xa0
[  270.937071][ T4843]  ? do_raw_spin_unlock+0x11d/0x230
[  270.942360][ T4843]  kobject_add_internal+0x662/0xd00
[  270.947583][ T4843]  kobject_init_and_add+0x122/0x190
[  270.952794][ T4843]  ? lockdep_softirqs_off+0x420/0x420
[  270.958192][ T4843]  ? kobject_add+0x210/0x210
[  270.962806][ T4843]  ? __init_swait_queue_head+0xa5/0x150
[  270.968400][ T4843]  gfs2_sys_fs_add+0x234/0x480
[  270.973190][ T4843]  ? gfs2_recover_set+0x240/0x240
[  270.978234][ T4843]  ? snprintf+0xd7/0x120
[  270.982507][ T4843]  ? __free_pages+0x95/0x1a0
[  270.987114][ T4843]  ? vscnprintf+0x80/0x80
[  270.991571][ T4843]  gfs2_fill_super+0x128d/0x1f50
[  270.996504][ T4843]  ? gfs2_reconfigure+0xcd0/0xcd0
[  271.001527][ T4843]  ? preempt_count_add+0x8d/0x190
[  271.006548][ T4843]  ? sb_set_blocksize+0xa5/0xe0
[  271.011416][ T4843]  get_tree_bdev+0x3f1/0x610
[  271.016003][ T4843]  ? gfs2_reconfigure+0xcd0/0xcd0
[  271.021007][ T4843]  gfs2_get_tree+0x4d/0x1e0
[  271.025489][ T4843]  vfs_get_tree+0x88/0x270
[  271.029979][ T4843]  do_new_mount+0x24a/0xa40
[  271.034551][ T4843]  __se_sys_mount+0x2d6/0x3c0
[  271.039211][ T4843]  ? __x64_sys_mount+0xc0/0xc0
[  271.043955][ T4843]  ? lockdep_hardirqs_on+0x94/0x140
[  271.049193][ T4843]  ? __x64_sys_mount+0x1c/0xc0
[  271.054066][ T4843]  do_syscall_64+0x4c/0xa0
[  271.058474][ T4843]  ? clear_bhb_loop+0x30/0x80
[  271.063134][ T4843]  ? clear_bhb_loop+0x30/0x80
[  271.067803][ T4843]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  271.073710][ T4843] RIP: 0033:0x7f189ed2638a
[  271.078105][ T4843] 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
[  271.097694][ T4843] RSP: 002b:00007ffd7103d4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  271.106107][ T4843] RAX: ffffffffffffffda RBX: 00007ffd7103d540 RCX: 00007f189ed2638a
[  271.114143][ T4843] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd7103d500
[  271.122108][ T4843] RBP: 0000200000000400 R08: 00007ffd7103d540 R09: 0000000000000000
[  271.130059][ T4843] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  271.138014][ T4843] R13: 00007ffd7103d500 R14: 00000000000125ed R15: 0000200000000640
[  271.145969][ T4843]  </TASK>
[  271.149042][ T4843] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  271.162154][ T4843] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  271.169122][ T4841] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  271.169428][ T4842] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  271.176672][ T4841] CPU: 0 PID: 4841 Comm: syz.4.380 Not tainted syzkaller #0
[  271.191177][ T4841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  271.201239][ T4841] Call Trace:
[  271.204532][ T4841]  <TASK>
[  271.207478][ T4841]  dump_stack_lvl+0x168/0x230
[  271.212175][ T4841]  ? show_regs_print_info+0x20/0x20
[  271.217380][ T4841]  ? load_image+0x3b0/0x3b0
[  271.221902][ T4841]  sysfs_create_dir_ns+0x252/0x280
[  271.227024][ T4841]  ? __lock_acquire+0x7c60/0x7c60
[  271.232056][ T4841]  ? sysfs_warn_dup+0xa0/0xa0
[  271.236736][ T4841]  ? do_raw_spin_unlock+0x11d/0x230
[  271.242031][ T4841]  kobject_add_internal+0x662/0xd00
[  271.247242][ T4841]  kobject_init_and_add+0x122/0x190
[  271.252437][ T4841]  ? lockdep_softirqs_off+0x420/0x420
[  271.257824][ T4841]  ? kobject_add+0x210/0x210
[  271.262422][ T4841]  ? __init_swait_queue_head+0xa5/0x150
[  271.267970][ T4841]  gfs2_sys_fs_add+0x234/0x480
[  271.272823][ T4841]  ? gfs2_recover_set+0x240/0x240
[  271.277843][ T4841]  ? snprintf+0xd7/0x120
[  271.282083][ T4841]  ? __free_pages+0x95/0x1a0
[  271.286729][ T4841]  ? vscnprintf+0x80/0x80
[  271.291068][ T4841]  gfs2_fill_super+0x128d/0x1f50
[  271.296042][ T4841]  ? gfs2_reconfigure+0xcd0/0xcd0
[  271.301165][ T4841]  ? preempt_count_add+0x8d/0x190
[  271.306221][ T4841]  ? sb_set_blocksize+0xa5/0xe0
[  271.311075][ T4841]  get_tree_bdev+0x3f1/0x610
[  271.315676][ T4841]  ? gfs2_reconfigure+0xcd0/0xcd0
[  271.320700][ T4841]  gfs2_get_tree+0x4d/0x1e0
[  271.325211][ T4841]  vfs_get_tree+0x88/0x270
[  271.329626][ T4841]  do_new_mount+0x24a/0xa40
[  271.334138][ T4841]  __se_sys_mount+0x2d6/0x3c0
[  271.338832][ T4841]  ? __x64_sys_mount+0xc0/0xc0
[  271.343604][ T4841]  ? lockdep_hardirqs_on+0x94/0x140
[  271.348802][ T4841]  ? __x64_sys_mount+0x1c/0xc0
[  271.353567][ T4841]  do_syscall_64+0x4c/0xa0
[  271.357983][ T4841]  ? clear_bhb_loop+0x30/0x80
[  271.362661][ T4841]  ? clear_bhb_loop+0x30/0x80
[  271.367335][ T4841]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  271.373252][ T4841] RIP: 0033:0x7faf0dd0538a
[  271.377675][ T4841] 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
[  271.397286][ T4841] RSP: 002b:00007ffe06a49088 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  271.405719][ T4841] RAX: ffffffffffffffda RBX: 00007ffe06a49110 RCX: 00007faf0dd0538a
[  271.413693][ T4841] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe06a490d0
[  271.421668][ T4841] RBP: 0000200000000400 R08: 00007ffe06a49110 R09: 0000000000000000
[  271.429640][ T4841] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  271.437614][ T4841] R13: 00007ffe06a490d0 R14: 00000000000125ed R15: 0000200000000640
[  271.445599][ T4841]  </TASK>
[  271.448625][ T4842] CPU: 1 PID: 4842 Comm: syz.0.381 Not tainted syzkaller #0
[  271.449896][ T4841] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  271.455925][ T4842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  271.455939][ T4842] Call Trace:
[  271.455946][ T4842]  <TASK>
[  271.455954][ T4842]  dump_stack_lvl+0x168/0x230
[  271.455983][ T4842]  ? show_regs_print_info+0x20/0x20
[  271.469170][ T4841] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  271.479123][ T4842]  ? load_image+0x3b0/0x3b0
[  271.479162][ T4842]  sysfs_create_dir_ns+0x252/0x280
[  271.482654][ T4844] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  271.485367][ T4842]  ? __lock_acquire+0x7c60/0x7c60
[  271.523636][ T4842]  ? sysfs_warn_dup+0xa0/0xa0
[  271.528322][ T4842]  ? do_raw_spin_unlock+0x11d/0x230
[  271.533614][ T4842]  kobject_add_internal+0x662/0xd00
[  271.538821][ T4842]  kobject_init_and_add+0x122/0x190
[  271.544015][ T4842]  ? lockdep_softirqs_off+0x420/0x420
[  271.549387][ T4842]  ? kobject_add+0x210/0x210
[  271.553979][ T4842]  ? __init_swait_queue_head+0xa5/0x150
[  271.559644][ T4842]  gfs2_sys_fs_add+0x234/0x480
[  271.564409][ T4842]  ? gfs2_recover_set+0x240/0x240
[  271.569432][ T4842]  ? snprintf+0xd7/0x120
[  271.573677][ T4842]  ? __free_pages+0x95/0x1a0
[  271.578269][ T4842]  ? vscnprintf+0x80/0x80
[  271.582616][ T4842]  gfs2_fill_super+0x128d/0x1f50
[  271.587566][ T4842]  ? gfs2_reconfigure+0xcd0/0xcd0
[  271.592596][ T4842]  ? preempt_count_add+0x8d/0x190
[  271.597634][ T4842]  ? sb_set_blocksize+0xa5/0xe0
[  271.602493][ T4842]  get_tree_bdev+0x3f1/0x610
[  271.607207][ T4842]  ? gfs2_reconfigure+0xcd0/0xcd0
[  271.612329][ T4842]  gfs2_get_tree+0x4d/0x1e0
[  271.616841][ T4842]  vfs_get_tree+0x88/0x270
[  271.621264][ T4842]  do_new_mount+0x24a/0xa40
[  271.625776][ T4842]  __se_sys_mount+0x2d6/0x3c0
[  271.631149][ T4842]  ? __x64_sys_mount+0xc0/0xc0
[  271.635975][ T4842]  ? lockdep_hardirqs_on+0x94/0x140
[  271.641365][ T4842]  ? __x64_sys_mount+0x1c/0xc0
[  271.646129][ T4842]  do_syscall_64+0x4c/0xa0
[  271.650542][ T4842]  ? clear_bhb_loop+0x30/0x80
[  271.655217][ T4842]  ? clear_bhb_loop+0x30/0x80
[  271.659893][ T4842]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  271.665784][ T4842] RIP: 0033:0x7f9530bc438a
[  271.670198][ T4842] 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
[  271.689802][ T4842] RSP: 002b:00007ffd38ead2c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  271.698219][ T4842] RAX: ffffffffffffffda RBX: 00007ffd38ead350 RCX: 00007f9530bc438a
[  271.706206][ T4842] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd38ead310
[  271.714188][ T4842] RBP: 0000200000000400 R08: 00007ffd38ead350 R09: 0000000000000000
[  271.722167][ T4842] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  271.730152][ T4842] R13: 00007ffd38ead310 R14: 00000000000125ed R15: 0000200000000640
[  271.738143][ T4842]  </TASK>
[  271.741367][ T4844] CPU: 0 PID: 4844 Comm: syz.2.382 Not tainted syzkaller #0
[  271.741451][ T4842] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  271.748932][ T4844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  271.748947][ T4844] Call Trace:
[  271.748955][ T4844]  <TASK>
[  271.748964][ T4844]  dump_stack_lvl+0x168/0x230
[  271.762066][ T4842] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  271.772100][ T4844]  ? show_regs_print_info+0x20/0x20
[  271.772127][ T4844]  ? load_image+0x3b0/0x3b0
[  271.799254][ T4844]  sysfs_create_dir_ns+0x252/0x280
[  271.804397][ T4844]  ? __lock_acquire+0x7c60/0x7c60
[  271.809450][ T4844]  ? sysfs_warn_dup+0xa0/0xa0
[  271.814151][ T4844]  ? do_raw_spin_unlock+0x11d/0x230
[  271.819480][ T4844]  kobject_add_internal+0x662/0xd00
[  271.824708][ T4844]  kobject_init_and_add+0x122/0x190
[  271.829897][ T4844]  ? lockdep_softirqs_off+0x420/0x420
[  271.835254][ T4844]  ? kobject_add+0x210/0x210
[  271.839845][ T4844]  ? __init_swait_queue_head+0xa5/0x150
[  271.845402][ T4844]  gfs2_sys_fs_add+0x234/0x480
[  271.850144][ T4844]  ? gfs2_recover_set+0x240/0x240
[  271.855150][ T4844]  ? snprintf+0xd7/0x120
[  271.859369][ T4844]  ? __free_pages+0x95/0x1a0
[  271.863937][ T4844]  ? vscnprintf+0x80/0x80
[  271.868250][ T4844]  gfs2_fill_super+0x128d/0x1f50
[  271.873175][ T4844]  ? gfs2_reconfigure+0xcd0/0xcd0
[  271.878193][ T4844]  ? preempt_count_add+0x8d/0x190
[  271.883226][ T4844]  ? sb_set_blocksize+0xa5/0xe0
[  271.888071][ T4844]  get_tree_bdev+0x3f1/0x610
[  271.892690][ T4844]  ? gfs2_reconfigure+0xcd0/0xcd0
[  271.897739][ T4844]  gfs2_get_tree+0x4d/0x1e0
[  271.902248][ T4844]  vfs_get_tree+0x88/0x270
[  271.906685][ T4844]  do_new_mount+0x24a/0xa40
[  271.911219][ T4844]  __se_sys_mount+0x2d6/0x3c0
[  271.915890][ T4844]  ? __x64_sys_mount+0xc0/0xc0
[  271.920645][ T4844]  ? lockdep_hardirqs_on+0x94/0x140
[  271.925839][ T4844]  ? __x64_sys_mount+0x1c/0xc0
[  271.930587][ T4844]  do_syscall_64+0x4c/0xa0
[  271.934983][ T4844]  ? clear_bhb_loop+0x30/0x80
[  271.939647][ T4844]  ? clear_bhb_loop+0x30/0x80
[  271.944358][ T4844]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  271.950389][ T4844] RIP: 0033:0x7f96b862d38a
[  271.955923][ T4844] 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
[  271.975605][ T4844] RSP: 002b:00007ffd68b69448 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  271.984003][ T4844] RAX: ffffffffffffffda RBX: 00007ffd68b694d0 RCX: 00007f96b862d38a
[  271.991970][ T4844] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd68b69490
[  272.000056][ T4844] RBP: 0000200000000400 R08: 00007ffd68b694d0 R09: 0000000000000000
[  272.008013][ T4844] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  272.015969][ T4844] R13: 00007ffd68b69490 R14: 00000000000125ed R15: 0000200000000640
[  272.023926][ T4844]  </TASK>
[  272.028038][ T4844] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  272.041498][ T4844] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  272.167216][ T4845] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.174648][ T4845] CPU: 0 PID: 4845 Comm: syz.1.384 Not tainted syzkaller #0
[  272.182130][ T4845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  272.192211][ T4845] Call Trace:
[  272.195506][ T4845]  <TASK>
[  272.198466][ T4845]  dump_stack_lvl+0x168/0x230
[  272.203174][ T4845]  ? show_regs_print_info+0x20/0x20
[  272.208390][ T4845]  ? load_image+0x3b0/0x3b0
[  272.212924][ T4845]  sysfs_create_dir_ns+0x252/0x280
[  272.218053][ T4845]  ? __lock_acquire+0x7c60/0x7c60
[  272.223092][ T4845]  ? sysfs_warn_dup+0xa0/0xa0
[  272.227793][ T4845]  ? do_raw_spin_unlock+0x11d/0x230
[  272.233011][ T4845]  kobject_add_internal+0x662/0xd00
[  272.238229][ T4845]  kobject_init_and_add+0x122/0x190
[  272.243532][ T4845]  ? lockdep_softirqs_off+0x420/0x420
[  272.248929][ T4845]  ? kobject_add+0x210/0x210
[  272.253536][ T4845]  ? __init_swait_queue_head+0xa5/0x150
[  272.259105][ T4845]  gfs2_sys_fs_add+0x234/0x480
[  272.263885][ T4845]  ? gfs2_recover_set+0x240/0x240
[  272.268930][ T4845]  ? snprintf+0xd7/0x120
[  272.273201][ T4845]  ? __free_pages+0x95/0x1a0
[  272.277935][ T4845]  ? vscnprintf+0x80/0x80
[  272.282324][ T4845]  gfs2_fill_super+0x128d/0x1f50
[  272.287300][ T4845]  ? gfs2_reconfigure+0xcd0/0xcd0
[  272.292377][ T4845]  ? preempt_count_add+0x8d/0x190
[  272.297521][ T4845]  ? sb_set_blocksize+0xa5/0xe0
[  272.302497][ T4845]  get_tree_bdev+0x3f1/0x610
[  272.307122][ T4845]  ? gfs2_reconfigure+0xcd0/0xcd0
[  272.312174][ T4845]  gfs2_get_tree+0x4d/0x1e0
[  272.316802][ T4845]  vfs_get_tree+0x88/0x270
[  272.321414][ T4845]  do_new_mount+0x24a/0xa40
[  272.325958][ T4845]  __se_sys_mount+0x2d6/0x3c0
[  272.330661][ T4845]  ? __x64_sys_mount+0xc0/0xc0
[  272.335469][ T4845]  ? lockdep_hardirqs_on+0x94/0x140
[  272.340696][ T4845]  ? __x64_sys_mount+0x1c/0xc0
[  272.345486][ T4845]  do_syscall_64+0x4c/0xa0
[  272.349932][ T4845]  ? clear_bhb_loop+0x30/0x80
[  272.354628][ T4845]  ? clear_bhb_loop+0x30/0x80
[  272.359325][ T4845]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  272.365246][ T4845] RIP: 0033:0x7f303caf138a
[  272.369680][ T4845] 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
[  272.389313][ T4845] RSP: 002b:00007ffc72ab5aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.397748][ T4845] RAX: ffffffffffffffda RBX: 00007ffc72ab5b30 RCX: 00007f303caf138a
[  272.405832][ T4845] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffc72ab5af0
[  272.413821][ T4845] RBP: 0000200000000400 R08: 00007ffc72ab5b30 R09: 0000000000000000
[  272.421814][ T4845] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  272.429801][ T4845] R13: 00007ffc72ab5af0 R14: 00000000000125ed R15: 0000200000000640
[  272.437805][ T4845]  </TASK>
[  272.442421][ T4845] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  272.455862][ T4845] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  272.644864][ T4848] loop2: detected capacity change from 0 to 32768
[  272.774849][ T4848] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.782807][ T4848] CPU: 1 PID: 4848 Comm: syz.2.387 Not tainted syzkaller #0
[  272.790125][ T4848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  272.800195][ T4848] Call Trace:
[  272.803492][ T4848]  <TASK>
[  272.806441][ T4848]  dump_stack_lvl+0x168/0x230
[  272.811145][ T4848]  ? show_regs_print_info+0x20/0x20
[  272.816370][ T4848]  ? load_image+0x3b0/0x3b0
[  272.820911][ T4848]  sysfs_create_dir_ns+0x252/0x280
[  272.826043][ T4848]  ? __lock_acquire+0x7c60/0x7c60
[  272.831090][ T4848]  ? sysfs_warn_dup+0xa0/0xa0
[  272.835797][ T4848]  ? do_raw_spin_unlock+0x11d/0x230
[  272.841014][ T4848]  kobject_add_internal+0x662/0xd00
[  272.846233][ T4848]  kobject_init_and_add+0x122/0x190
[  272.851453][ T4848]  ? lockdep_softirqs_off+0x420/0x420
[  272.857545][ T4848]  ? kobject_add+0x210/0x210
[  272.862168][ T4848]  ? __init_swait_queue_head+0xa5/0x150
[  272.867743][ T4848]  gfs2_sys_fs_add+0x234/0x480
[  272.872527][ T4848]  ? gfs2_recover_set+0x240/0x240
[  272.877582][ T4848]  ? snprintf+0xd7/0x120
[  272.881842][ T4848]  ? __free_pages+0x95/0x1a0
[  272.886454][ T4848]  ? vscnprintf+0x80/0x80
[  272.890819][ T4848]  gfs2_fill_super+0x128d/0x1f50
[  272.895798][ T4848]  ? gfs2_reconfigure+0xcd0/0xcd0
[  272.900853][ T4848]  ? preempt_count_add+0x8d/0x190
[  272.905912][ T4848]  ? sb_set_blocksize+0xa5/0xe0
[  272.910789][ T4848]  get_tree_bdev+0x3f1/0x610
[  272.915399][ T4848]  ? gfs2_reconfigure+0xcd0/0xcd0
[  272.920446][ T4848]  gfs2_get_tree+0x4d/0x1e0
[  272.924969][ T4848]  vfs_get_tree+0x88/0x270
[  272.929407][ T4848]  do_new_mount+0x24a/0xa40
[  272.933937][ T4848]  __se_sys_mount+0x2d6/0x3c0
[  272.938653][ T4848]  ? __x64_sys_mount+0xc0/0xc0
[  272.943443][ T4848]  ? lockdep_hardirqs_on+0x94/0x140
[  272.948665][ T4848]  ? __x64_sys_mount+0x1c/0xc0
[  272.953452][ T4848]  do_syscall_64+0x4c/0xa0
[  272.957870][ T4848]  ? clear_bhb_loop+0x30/0x80
[  272.962637][ T4848]  ? clear_bhb_loop+0x30/0x80
[  272.967312][ T4848]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  272.973200][ T4848] RIP: 0033:0x7f96b862d38a
[  272.977617][ T4848] 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
[  272.997220][ T4848] RSP: 002b:00007ffd68b69448 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  273.005631][ T4848] RAX: ffffffffffffffda RBX: 00007ffd68b694d0 RCX: 00007f96b862d38a
[  273.013602][ T4848] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd68b69490
[  273.021573][ T4848] RBP: 0000200000000400 R08: 00007ffd68b694d0 R09: 0000000000000000
[  273.029544][ T4848] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  273.037542][ T4848] R13: 00007ffd68b69490 R14: 00000000000125ed R15: 0000200000000640
[  273.045526][ T4848]  </TASK>
[  273.051158][ T4848] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  273.064411][ T4848] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  273.186616][ T4847] loop5: detected capacity change from 0 to 32768
[  273.383680][ T4846] loop0: detected capacity change from 0 to 32768
[  273.416838][ T4849] loop4: detected capacity change from 0 to 32768
[  273.428272][ T4849] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  273.435927][ T4849] CPU: 0 PID: 4849 Comm: syz.4.389 Not tainted syzkaller #0
[  273.443236][ T4849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  273.453367][ T4849] Call Trace:
[  273.456762][ T4849]  <TASK>
[  273.459808][ T4849]  dump_stack_lvl+0x168/0x230
[  273.464520][ T4849]  ? show_regs_print_info+0x20/0x20
[  273.469745][ T4849]  ? load_image+0x3b0/0x3b0
[  273.474719][ T4849]  sysfs_create_dir_ns+0x252/0x280
[  273.479941][ T4849]  ? __lock_acquire+0x7c60/0x7c60
[  273.484994][ T4849]  ? sysfs_warn_dup+0xa0/0xa0
[  273.489698][ T4849]  ? do_raw_spin_unlock+0x11d/0x230
[  273.494913][ T4849]  kobject_add_internal+0x662/0xd00
[  273.500137][ T4849]  kobject_init_and_add+0x122/0x190
[  273.505617][ T4849]  ? lockdep_softirqs_off+0x420/0x420
[  273.511013][ T4849]  ? kobject_add+0x210/0x210
[  273.515625][ T4849]  ? __init_swait_queue_head+0xa5/0x150
[  273.521283][ T4849]  gfs2_sys_fs_add+0x234/0x480
[  273.526068][ T4849]  ? gfs2_recover_set+0x240/0x240
[  273.531107][ T4849]  ? snprintf+0xd7/0x120
[  273.535377][ T4849]  ? __free_pages+0x95/0x1a0
[  273.539982][ T4849]  ? vscnprintf+0x80/0x80
[  273.544340][ T4849]  gfs2_fill_super+0x128d/0x1f50
[  273.549321][ T4849]  ? gfs2_reconfigure+0xcd0/0xcd0
[  273.554376][ T4849]  ? preempt_count_add+0x8d/0x190
[  273.559425][ T4849]  ? sb_set_blocksize+0xa5/0xe0
[  273.564301][ T4849]  get_tree_bdev+0x3f1/0x610
[  273.569006][ T4849]  ? gfs2_reconfigure+0xcd0/0xcd0
[  273.574043][ T4849]  gfs2_get_tree+0x4d/0x1e0
[  273.578560][ T4849]  vfs_get_tree+0x88/0x270
[  273.582997][ T4849]  do_new_mount+0x24a/0xa40
[  273.587698][ T4849]  __se_sys_mount+0x2d6/0x3c0
[  273.592406][ T4849]  ? __x64_sys_mount+0xc0/0xc0
[  273.597235][ T4849]  ? lockdep_hardirqs_on+0x94/0x140
[  273.602453][ T4849]  ? __x64_sys_mount+0x1c/0xc0
[  273.607354][ T4849]  do_syscall_64+0x4c/0xa0
[  273.611792][ T4849]  ? clear_bhb_loop+0x30/0x80
[  273.616485][ T4849]  ? clear_bhb_loop+0x30/0x80
[  273.621179][ T4849]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  273.627094][ T4849] RIP: 0033:0x7faf0dd0538a
[  273.631528][ T4849] 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
[  273.651156][ T4849] RSP: 002b:00007ffe06a49088 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  273.659606][ T4849] RAX: ffffffffffffffda RBX: 00007ffe06a49110 RCX: 00007faf0dd0538a
[  273.667604][ T4849] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe06a490d0
[  273.675599][ T4849] RBP: 0000200000000400 R08: 00007ffe06a49110 R09: 0000000000000000
[  273.683592][ T4849] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  273.691669][ T4849] R13: 00007ffe06a490d0 R14: 00000000000125ed R15: 0000200000000640
[  273.699678][ T4849]  </TASK>
[  273.702878][ T4849] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  273.716033][ T4849] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  274.103420][ T4847] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  274.111103][ T4847] CPU: 0 PID: 4847 Comm: syz.5.385 Not tainted syzkaller #0
[  274.118407][ T4847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  274.128488][ T4847] Call Trace:
[  274.131787][ T4847]  <TASK>
[  274.134740][ T4847]  dump_stack_lvl+0x168/0x230
[  274.139444][ T4847]  ? show_regs_print_info+0x20/0x20
[  274.144662][ T4847]  ? load_image+0x3b0/0x3b0
[  274.149281][ T4847]  sysfs_create_dir_ns+0x252/0x280
[  274.154406][ T4847]  ? __lock_acquire+0x7c60/0x7c60
[  274.159453][ T4847]  ? sysfs_warn_dup+0xa0/0xa0
[  274.164155][ T4847]  ? do_raw_spin_unlock+0x11d/0x230
[  274.169371][ T4847]  kobject_add_internal+0x662/0xd00
[  274.174611][ T4847]  kobject_init_and_add+0x122/0x190
[  274.179830][ T4847]  ? lockdep_softirqs_off+0x420/0x420
[  274.185229][ T4847]  ? kobject_add+0x210/0x210
[  274.189839][ T4847]  ? __init_swait_queue_head+0xa5/0x150
[  274.195415][ T4847]  gfs2_sys_fs_add+0x234/0x480
[  274.200232][ T4847]  ? gfs2_recover_set+0x240/0x240
[  274.205271][ T4847]  ? snprintf+0xd7/0x120
[  274.209528][ T4847]  ? __free_pages+0x95/0x1a0
[  274.214139][ T4847]  ? vscnprintf+0x80/0x80
[  274.218516][ T4847]  gfs2_fill_super+0x128d/0x1f50
[  274.223487][ T4847]  ? gfs2_reconfigure+0xcd0/0xcd0
[  274.228535][ T4847]  ? preempt_count_add+0x8d/0x190
[  274.233610][ T4847]  ? sb_set_blocksize+0xa5/0xe0
[  274.238487][ T4847]  get_tree_bdev+0x3f1/0x610
[  274.243094][ T4847]  ? gfs2_reconfigure+0xcd0/0xcd0
[  274.248136][ T4847]  gfs2_get_tree+0x4d/0x1e0
[  274.252751][ T4847]  vfs_get_tree+0x88/0x270
[  274.257193][ T4847]  do_new_mount+0x24a/0xa40
[  274.261724][ T4847]  __se_sys_mount+0x2d6/0x3c0
[  274.266429][ T4847]  ? __x64_sys_mount+0xc0/0xc0
[  274.271232][ T4847]  ? lockdep_hardirqs_on+0x94/0x140
[  274.276448][ T4847]  ? __x64_sys_mount+0x1c/0xc0
[  274.281243][ T4847]  do_syscall_64+0x4c/0xa0
[  274.281444][ T4846] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  274.285672][ T4847]  ? clear_bhb_loop+0x30/0x80
[  274.297709][ T4847]  ? clear_bhb_loop+0x30/0x80
[  274.302386][ T4847]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  274.308275][ T4847] RIP: 0033:0x7f189ed2638a
[  274.312689][ T4847] 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
[  274.332296][ T4847] RSP: 002b:00007ffd7103d4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  274.340710][ T4847] RAX: ffffffffffffffda RBX: 00007ffd7103d540 RCX: 00007f189ed2638a
[  274.348680][ T4847] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd7103d500
[  274.356648][ T4847] RBP: 0000200000000400 R08: 00007ffd7103d540 R09: 0000000000000000
[  274.364620][ T4847] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  274.372590][ T4847] R13: 00007ffd7103d500 R14: 00000000000125ed R15: 0000200000000640
[  274.380583][ T4847]  </TASK>
[  274.383599][ T4846] CPU: 1 PID: 4846 Comm: syz.0.386 Not tainted syzkaller #0
[  274.384692][ T4847] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  274.390894][ T4846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  274.390909][ T4846] Call Trace:
[  274.390917][ T4846]  <TASK>
[  274.390926][ T4846]  dump_stack_lvl+0x168/0x230
[  274.404287][ T4847] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  274.414308][ T4846]  ? show_regs_print_info+0x20/0x20
[  274.414342][ T4846]  ? load_image+0x3b0/0x3b0
[  274.441543][ T4846]  sysfs_create_dir_ns+0x252/0x280
[  274.446697][ T4846]  ? __lock_acquire+0x7c60/0x7c60
2025/09/01 14:49:41 executed programs: 385
[  274.451753][ T4846]  ? sysfs_warn_dup+0xa0/0xa0
[  274.456504][ T4846]  ? do_raw_spin_unlock+0x11d/0x230
[  274.461733][ T4846]  kobject_add_internal+0x662/0xd00
[  274.466970][ T4846]  kobject_init_and_add+0x122/0x190
[  274.472198][ T4846]  ? lockdep_softirqs_off+0x420/0x420
[  274.477604][ T4846]  ? kobject_add+0x210/0x210
[  274.482226][ T4846]  ? __init_swait_queue_head+0xa5/0x150
[  274.487893][ T4846]  gfs2_sys_fs_add+0x234/0x480
[  274.492688][ T4846]  ? gfs2_recover_set+0x240/0x240
[  274.497729][ T4846]  ? snprintf+0xd7/0x120
[  274.502069][ T4846]  ? __free_pages+0x95/0x1a0
[  274.506673][ T4846]  ? vscnprintf+0x80/0x80
[  274.511048][ T4846]  gfs2_fill_super+0x128d/0x1f50
[  274.516010][ T4846]  ? gfs2_reconfigure+0xcd0/0xcd0
[  274.521057][ T4846]  ? preempt_count_add+0x8d/0x190
[  274.526104][ T4846]  ? sb_set_blocksize+0xa5/0xe0
[  274.530969][ T4846]  get_tree_bdev+0x3f1/0x610
[  274.535564][ T4846]  ? gfs2_reconfigure+0xcd0/0xcd0
[  274.540596][ T4846]  gfs2_get_tree+0x4d/0x1e0
[  274.545102][ T4846]  vfs_get_tree+0x88/0x270
[  274.549522][ T4846]  do_new_mount+0x24a/0xa40
[  274.554202][ T4846]  __se_sys_mount+0x2d6/0x3c0
[  274.558887][ T4846]  ? __x64_sys_mount+0xc0/0xc0
[  274.563651][ T4846]  ? lockdep_hardirqs_on+0x94/0x140
[  274.568849][ T4846]  ? __x64_sys_mount+0x1c/0xc0
[  274.573614][ T4846]  do_syscall_64+0x4c/0xa0
[  274.578026][ T4846]  ? clear_bhb_loop+0x30/0x80
[  274.582698][ T4846]  ? clear_bhb_loop+0x30/0x80
[  274.587373][ T4846]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  274.593259][ T4846] RIP: 0033:0x7f9530bc438a
[  274.597672][ T4846] 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
[  274.617281][ T4846] RSP: 002b:00007ffd38ead2c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  274.625788][ T4846] RAX: ffffffffffffffda RBX: 00007ffd38ead350 RCX: 00007f9530bc438a
[  274.633775][ T4846] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd38ead310
[  274.641766][ T4846] RBP: 0000200000000400 R08: 00007ffd38ead350 R09: 0000000000000000
[  274.649752][ T4846] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  274.657815][ T4846] R13: 00007ffd38ead310 R14: 00000000000125ed R15: 0000200000000640
[  274.666062][ T4846]  </TASK>
[  274.672020][ T4846] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  274.674699][ T4852] loop1: detected capacity change from 0 to 32768
[  274.685185][ T4846] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  274.831881][ T4852] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  274.839543][ T4852] CPU: 0 PID: 4852 Comm: syz.1.388 Not tainted syzkaller #0
[  274.846846][ T4852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  274.856925][ T4852] Call Trace:
[  274.860221][ T4852]  <TASK>
[  274.863249][ T4852]  dump_stack_lvl+0x168/0x230
[  274.867950][ T4852]  ? show_regs_print_info+0x20/0x20
[  274.873170][ T4852]  ? load_image+0x3b0/0x3b0
[  274.877702][ T4852]  sysfs_create_dir_ns+0x252/0x280
[  274.882827][ T4852]  ? __lock_acquire+0x7c60/0x7c60
[  274.887961][ T4852]  ? sysfs_warn_dup+0xa0/0xa0
[  274.892661][ T4852]  ? do_raw_spin_unlock+0x11d/0x230
[  274.897900][ T4852]  kobject_add_internal+0x662/0xd00
[  274.903131][ T4852]  kobject_init_and_add+0x122/0x190
[  274.908359][ T4852]  ? lockdep_softirqs_off+0x420/0x420
[  274.913778][ T4852]  ? kobject_add+0x210/0x210
[  274.918404][ T4852]  ? __init_swait_queue_head+0xa5/0x150
[  274.923977][ T4852]  gfs2_sys_fs_add+0x234/0x480
[  274.929197][ T4852]  ? gfs2_recover_set+0x240/0x240
[  274.934250][ T4852]  ? snprintf+0xd7/0x120
[  274.938563][ T4852]  ? __free_pages+0x95/0x1a0
[  274.943179][ T4852]  ? vscnprintf+0x80/0x80
[  274.947539][ T4852]  gfs2_fill_super+0x128d/0x1f50
[  274.952525][ T4852]  ? gfs2_reconfigure+0xcd0/0xcd0
[  274.957583][ T4852]  ? preempt_count_add+0x8d/0x190
[  274.962652][ T4852]  ? sb_set_blocksize+0xa5/0xe0
[  274.967529][ T4852]  get_tree_bdev+0x3f1/0x610
[  274.972153][ T4852]  ? gfs2_reconfigure+0xcd0/0xcd0
[  274.977213][ T4852]  gfs2_get_tree+0x4d/0x1e0
[  274.981742][ T4852]  vfs_get_tree+0x88/0x270
[  274.986183][ T4852]  do_new_mount+0x24a/0xa40
[  274.990714][ T4852]  __se_sys_mount+0x2d6/0x3c0
[  274.995417][ T4852]  ? __x64_sys_mount+0xc0/0xc0
[  275.000206][ T4852]  ? lockdep_hardirqs_on+0x94/0x140
[  275.005427][ T4852]  ? __x64_sys_mount+0x1c/0xc0
[  275.010213][ T4852]  do_syscall_64+0x4c/0xa0
[  275.014644][ T4852]  ? clear_bhb_loop+0x30/0x80
[  275.019334][ T4852]  ? clear_bhb_loop+0x30/0x80
[  275.024030][ T4852]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  275.029936][ T4852] RIP: 0033:0x7f303caf138a
[  275.034373][ T4852] 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
[  275.054095][ T4852] RSP: 002b:00007ffc72ab5aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  275.062556][ T4852] RAX: ffffffffffffffda RBX: 00007ffc72ab5b30 RCX: 00007f303caf138a
[  275.070564][ T4852] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffc72ab5af0
[  275.078562][ T4852] RBP: 0000200000000400 R08: 00007ffc72ab5b30 R09: 0000000000000000
[  275.086655][ T4852] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  275.094734][ T4852] R13: 00007ffc72ab5af0 R14: 00000000000125ed R15: 0000200000000640
[  275.103177][ T4852]  </TASK>
[  275.107703][ T4852] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  275.121106][ T4852] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  275.416701][ T4856] loop4: detected capacity change from 0 to 32768
[  275.462961][ T4854] loop2: detected capacity change from 0 to 32768
[  275.470759][ T4855] loop0: detected capacity change from 0 to 32768
[  275.880688][ T4857] loop5: detected capacity change from 0 to 32768
[  275.887800][ T4856] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  275.895195][ T4856] CPU: 1 PID: 4856 Comm: syz.4.394 Not tainted syzkaller #0
[  275.902501][ T4856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  275.912664][ T4856] Call Trace:
[  275.915962][ T4856]  <TASK>
[  275.918913][ T4856]  dump_stack_lvl+0x168/0x230
[  275.923617][ T4856]  ? show_regs_print_info+0x20/0x20
[  275.928838][ T4856]  ? load_image+0x3b0/0x3b0
[  275.933377][ T4856]  sysfs_create_dir_ns+0x252/0x280
[  275.938508][ T4856]  ? __lock_acquire+0x7c60/0x7c60
[  275.943564][ T4856]  ? sysfs_warn_dup+0xa0/0xa0
[  275.948284][ T4856]  ? do_raw_spin_unlock+0x11d/0x230
[  275.953507][ T4856]  kobject_add_internal+0x662/0xd00
[  275.958739][ T4856]  kobject_init_and_add+0x122/0x190
[  275.963960][ T4856]  ? lockdep_softirqs_off+0x420/0x420
[  275.969368][ T4856]  ? kobject_add+0x210/0x210
[  275.974073][ T4856]  ? __init_swait_queue_head+0xa5/0x150
[  275.979645][ T4856]  gfs2_sys_fs_add+0x234/0x480
[  275.984430][ T4856]  ? gfs2_recover_set+0x240/0x240
[  275.989478][ T4856]  ? snprintf+0xd7/0x120
[  275.993744][ T4856]  ? __free_pages+0x95/0x1a0
[  275.998360][ T4856]  ? vscnprintf+0x80/0x80
[  276.002725][ T4856]  gfs2_fill_super+0x128d/0x1f50
[  276.007696][ T4856]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.012835][ T4856]  ? preempt_count_add+0x8d/0x190
[  276.017992][ T4856]  ? sb_set_blocksize+0xa5/0xe0
[  276.022954][ T4856]  get_tree_bdev+0x3f1/0x610
[  276.027573][ T4856]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.032633][ T4856]  gfs2_get_tree+0x4d/0x1e0
[  276.037165][ T4856]  vfs_get_tree+0x88/0x270
[  276.041610][ T4856]  do_new_mount+0x24a/0xa40
[  276.046141][ T4856]  __se_sys_mount+0x2d6/0x3c0
[  276.050838][ T4856]  ? __x64_sys_mount+0xc0/0xc0
[  276.055713][ T4856]  ? lockdep_hardirqs_on+0x94/0x140
[  276.060940][ T4856]  ? __x64_sys_mount+0x1c/0xc0
[  276.065731][ T4856]  do_syscall_64+0x4c/0xa0
[  276.070161][ T4856]  ? clear_bhb_loop+0x30/0x80
[  276.074850][ T4856]  ? clear_bhb_loop+0x30/0x80
[  276.079543][ T4856]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  276.085462][ T4856] RIP: 0033:0x7faf0dd0538a
[  276.089895][ T4856] 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
[  276.109609][ T4856] RSP: 002b:00007ffe06a49088 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.118134][ T4856] RAX: ffffffffffffffda RBX: 00007ffe06a49110 RCX: 00007faf0dd0538a
[  276.126121][ T4856] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe06a490d0
[  276.134109][ T4856] RBP: 0000200000000400 R08: 00007ffe06a49110 R09: 0000000000000000
[  276.142114][ T4856] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  276.150102][ T4856] R13: 00007ffe06a490d0 R14: 00000000000125ed R15: 0000200000000640
[  276.158110][ T4856]  </TASK>
[  276.161760][ T4856] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  276.175017][ T4856] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  276.178903][ T4858] loop1: detected capacity change from 0 to 32768
[  276.185056][ T4854] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  276.195612][ T4854] CPU: 1 PID: 4854 Comm: syz.2.392 Not tainted syzkaller #0
[  276.195657][ T4855] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  276.202910][ T4854] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  276.202926][ T4854] Call Trace:
[  276.202935][ T4854]  <TASK>
[  276.202943][ T4854]  dump_stack_lvl+0x168/0x230
[  276.202975][ T4854]  ? show_regs_print_info+0x20/0x20
[  276.202998][ T4854]  ? load_image+0x3b0/0x3b0
[  276.203029][ T4854]  sysfs_create_dir_ns+0x252/0x280
[  276.203052][ T4854]  ? __lock_acquire+0x7c60/0x7c60
[  276.203076][ T4854]  ? sysfs_warn_dup+0xa0/0xa0
[  276.203103][ T4854]  ? do_raw_spin_unlock+0x11d/0x230
[  276.203127][ T4854]  kobject_add_internal+0x662/0xd00
[  276.203157][ T4854]  kobject_init_and_add+0x122/0x190
[  276.203176][ T4854]  ? lockdep_softirqs_off+0x420/0x420
[  276.203202][ T4854]  ? kobject_add+0x210/0x210
[  276.203227][ T4854]  ? __init_swait_queue_head+0xa5/0x150
[  276.203254][ T4854]  gfs2_sys_fs_add+0x234/0x480
[  276.203275][ T4854]  ? gfs2_recover_set+0x240/0x240
[  276.203296][ T4854]  ? snprintf+0xd7/0x120
[  276.203316][ T4854]  ? __free_pages+0x95/0x1a0
[  276.203340][ T4854]  ? vscnprintf+0x80/0x80
[  276.203375][ T4854]  gfs2_fill_super+0x128d/0x1f50
[  276.203412][ T4854]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.203437][ T4854]  ? preempt_count_add+0x8d/0x190
[  276.203471][ T4854]  ? sb_set_blocksize+0xa5/0xe0
[  276.203497][ T4854]  get_tree_bdev+0x3f1/0x610
[  276.203520][ T4854]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.203544][ T4854]  gfs2_get_tree+0x4d/0x1e0
[  276.203578][ T4854]  vfs_get_tree+0x88/0x270
[  276.203601][ T4854]  do_new_mount+0x24a/0xa40
[  276.203631][ T4854]  __se_sys_mount+0x2d6/0x3c0
[  276.203658][ T4854]  ? __x64_sys_mount+0xc0/0xc0
[  276.203684][ T4854]  ? lockdep_hardirqs_on+0x94/0x140
[  276.203703][ T4854]  ? __x64_sys_mount+0x1c/0xc0
[  276.203727][ T4854]  do_syscall_64+0x4c/0xa0
[  276.203745][ T4854]  ? clear_bhb_loop+0x30/0x80
[  276.203763][ T4854]  ? clear_bhb_loop+0x30/0x80
[  276.203784][ T4854]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  276.203805][ T4854] RIP: 0033:0x7f96b862d38a
[  276.203826][ T4854] 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
[  276.203844][ T4854] RSP: 002b:00007ffd68b69448 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.203869][ T4854] RAX: ffffffffffffffda RBX: 00007ffd68b694d0 RCX: 00007f96b862d38a
[  276.203886][ T4854] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd68b69490
[  276.203901][ T4854] RBP: 0000200000000400 R08: 00007ffd68b694d0 R09: 0000000000000000
[  276.203916][ T4854] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  276.203930][ T4854] R13: 00007ffd68b69490 R14: 00000000000125ed R15: 0000200000000640
[  276.203963][ T4854]  </TASK>
[  276.204017][ T4854] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  276.204034][ T4854] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  276.303588][ T4857] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  276.304223][ T4855] CPU: 0 PID: 4855 Comm: syz.0.393 Not tainted syzkaller #0
[  276.504542][ T4855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  276.514695][ T4855] Call Trace:
[  276.517973][ T4855]  <TASK>
[  276.520907][ T4855]  dump_stack_lvl+0x168/0x230
[  276.525683][ T4855]  ? show_regs_print_info+0x20/0x20
[  276.530883][ T4855]  ? load_image+0x3b0/0x3b0
[  276.535402][ T4855]  sysfs_create_dir_ns+0x252/0x280
[  276.540517][ T4855]  ? __lock_acquire+0x7c60/0x7c60
[  276.545542][ T4855]  ? sysfs_warn_dup+0xa0/0xa0
[  276.550223][ T4855]  ? do_raw_spin_unlock+0x11d/0x230
[  276.555423][ T4855]  kobject_add_internal+0x662/0xd00
[  276.560626][ T4855]  kobject_init_and_add+0x122/0x190
[  276.565822][ T4855]  ? lockdep_softirqs_off+0x420/0x420
[  276.571200][ T4855]  ? kobject_add+0x210/0x210
[  276.575804][ T4855]  ? __init_swait_queue_head+0xa5/0x150
[  276.581383][ T4855]  gfs2_sys_fs_add+0x234/0x480
[  276.586165][ T4855]  ? gfs2_recover_set+0x240/0x240
[  276.591203][ T4855]  ? snprintf+0xd7/0x120
[  276.595448][ T4855]  ? __free_pages+0x95/0x1a0
[  276.600133][ T4855]  ? vscnprintf+0x80/0x80
[  276.604474][ T4855]  gfs2_fill_super+0x128d/0x1f50
[  276.609429][ T4855]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.614465][ T4855]  ? preempt_count_add+0x8d/0x190
[  276.619515][ T4855]  ? sb_set_blocksize+0xa5/0xe0
[  276.624369][ T4855]  get_tree_bdev+0x3f1/0x610
[  276.628960][ T4855]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.634033][ T4855]  gfs2_get_tree+0x4d/0x1e0
[  276.638541][ T4855]  vfs_get_tree+0x88/0x270
[  276.642961][ T4855]  do_new_mount+0x24a/0xa40
[  276.647481][ T4855]  __se_sys_mount+0x2d6/0x3c0
[  276.652162][ T4855]  ? __x64_sys_mount+0xc0/0xc0
[  276.656928][ T4855]  ? lockdep_hardirqs_on+0x94/0x140
[  276.662125][ T4855]  ? __x64_sys_mount+0x1c/0xc0
[  276.666890][ T4855]  do_syscall_64+0x4c/0xa0
[  276.671393][ T4855]  ? clear_bhb_loop+0x30/0x80
[  276.676065][ T4855]  ? clear_bhb_loop+0x30/0x80
[  276.680738][ T4855]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  276.686634][ T4855] RIP: 0033:0x7f9530bc438a
[  276.691051][ T4855] 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
[  276.710658][ T4855] RSP: 002b:00007ffd38ead2c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.719080][ T4855] RAX: ffffffffffffffda RBX: 00007ffd38ead350 RCX: 00007f9530bc438a
[  276.727060][ T4855] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd38ead310
[  276.735030][ T4855] RBP: 0000200000000400 R08: 00007ffd38ead350 R09: 0000000000000000
[  276.742998][ T4855] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  276.750967][ T4855] R13: 00007ffd38ead310 R14: 00000000000125ed R15: 0000200000000640
[  276.758951][ T4855]  </TASK>
[  276.761970][ T4857] CPU: 1 PID: 4857 Comm: syz.5.395 Not tainted syzkaller #0
[  276.762085][ T4855] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  276.769272][ T4857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  276.769287][ T4857] Call Trace:
[  276.769294][ T4857]  <TASK>
[  276.769303][ T4857]  dump_stack_lvl+0x168/0x230
[  276.782509][ T4855] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  276.792536][ T4857]  ? show_regs_print_info+0x20/0x20
[  276.792569][ T4857]  ? load_image+0x3b0/0x3b0
[  276.819733][ T4857]  sysfs_create_dir_ns+0x252/0x280
[  276.820542][ T4858] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  276.824951][ T4857]  ? __lock_acquire+0x7c60/0x7c60
[  276.837373][ T4857]  ? sysfs_warn_dup+0xa0/0xa0
[  276.842055][ T4857]  ? do_raw_spin_unlock+0x11d/0x230
[  276.847252][ T4857]  kobject_add_internal+0x662/0xd00
[  276.852462][ T4857]  kobject_init_and_add+0x122/0x190
[  276.857745][ T4857]  ? lockdep_softirqs_off+0x420/0x420
[  276.863126][ T4857]  ? kobject_add+0x210/0x210
[  276.867745][ T4857]  ? __init_swait_queue_head+0xa5/0x150
[  276.873296][ T4857]  gfs2_sys_fs_add+0x234/0x480
[  276.878062][ T4857]  ? gfs2_recover_set+0x240/0x240
[  276.883086][ T4857]  ? snprintf+0xd7/0x120
[  276.887331][ T4857]  ? __free_pages+0x95/0x1a0
[  276.891928][ T4857]  ? vscnprintf+0x80/0x80
[  276.896266][ T4857]  gfs2_fill_super+0x128d/0x1f50
[  276.901214][ T4857]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.906239][ T4857]  ? preempt_count_add+0x8d/0x190
[  276.911273][ T4857]  ? sb_set_blocksize+0xa5/0xe0
[  276.916135][ T4857]  get_tree_bdev+0x3f1/0x610
[  276.920728][ T4857]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.925752][ T4857]  gfs2_get_tree+0x4d/0x1e0
[  276.930258][ T4857]  vfs_get_tree+0x88/0x270
[  276.934674][ T4857]  do_new_mount+0x24a/0xa40
[  276.939206][ T4857]  __se_sys_mount+0x2d6/0x3c0
[  276.943896][ T4857]  ? __x64_sys_mount+0xc0/0xc0
[  276.948664][ T4857]  ? lockdep_hardirqs_on+0x94/0x140
[  276.953862][ T4857]  ? __x64_sys_mount+0x1c/0xc0
[  276.958625][ T4857]  do_syscall_64+0x4c/0xa0
[  276.963146][ T4857]  ? clear_bhb_loop+0x30/0x80
[  276.967847][ T4857]  ? clear_bhb_loop+0x30/0x80
[  276.972542][ T4857]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  276.978440][ T4857] RIP: 0033:0x7f189ed2638a
[  276.983235][ T4857] 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
[  277.003037][ T4857] RSP: 002b:00007ffd7103d4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  277.011456][ T4857] RAX: ffffffffffffffda RBX: 00007ffd7103d540 RCX: 00007f189ed2638a
[  277.019425][ T4857] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd7103d500
[  277.027481][ T4857] RBP: 0000200000000400 R08: 00007ffd7103d540 R09: 0000000000000000
[  277.035461][ T4857] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  277.043438][ T4857] R13: 00007ffd7103d500 R14: 00000000000125ed R15: 0000200000000640
[  277.051440][ T4857]  </TASK>
[  277.054465][ T4858] CPU: 0 PID: 4858 Comm: syz.1.396 Not tainted syzkaller #0
[  277.055123][ T4857] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  277.061771][ T4858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  277.061787][ T4858] Call Trace:
[  277.061795][ T4858]  <TASK>
[  277.061803][ T4858]  dump_stack_lvl+0x168/0x230
[  277.074918][ T4857] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  277.084953][ T4858]  ? show_regs_print_info+0x20/0x20
[  277.084981][ T4858]  ? load_image+0x3b0/0x3b0
[  277.112230][ T4858]  sysfs_create_dir_ns+0x252/0x280
[  277.117380][ T4858]  ? __lock_acquire+0x7c60/0x7c60
[  277.122524][ T4858]  ? sysfs_warn_dup+0xa0/0xa0
[  277.127351][ T4858]  ? do_raw_spin_unlock+0x11d/0x230
[  277.132572][ T4858]  kobject_add_internal+0x662/0xd00
[  277.137792][ T4858]  kobject_init_and_add+0x122/0x190
[  277.143005][ T4858]  ? lockdep_softirqs_off+0x420/0x420
[  277.148400][ T4858]  ? kobject_add+0x210/0x210
[  277.153014][ T4858]  ? __init_swait_queue_head+0xa5/0x150
[  277.158679][ T4858]  gfs2_sys_fs_add+0x234/0x480
[  277.163464][ T4858]  ? gfs2_recover_set+0x240/0x240
[  277.168512][ T4858]  ? snprintf+0xd7/0x120
[  277.172770][ T4858]  ? __free_pages+0x95/0x1a0
[  277.177384][ T4858]  ? vscnprintf+0x80/0x80
[  277.181748][ T4858]  gfs2_fill_super+0x128d/0x1f50
[  277.186715][ T4858]  ? gfs2_reconfigure+0xcd0/0xcd0
[  277.191805][ T4858]  ? preempt_count_add+0x8d/0x190
[  277.196853][ T4858]  ? sb_set_blocksize+0xa5/0xe0
[  277.201807][ T4858]  get_tree_bdev+0x3f1/0x610
[  277.206516][ T4858]  ? gfs2_reconfigure+0xcd0/0xcd0
[  277.211689][ T4858]  gfs2_get_tree+0x4d/0x1e0
[  277.216226][ T4858]  vfs_get_tree+0x88/0x270
[  277.220754][ T4858]  do_new_mount+0x24a/0xa40
[  277.225284][ T4858]  __se_sys_mount+0x2d6/0x3c0
[  277.229992][ T4858]  ? __x64_sys_mount+0xc0/0xc0
[  277.234803][ T4858]  ? lockdep_hardirqs_on+0x94/0x140
[  277.240026][ T4858]  ? __x64_sys_mount+0x1c/0xc0
[  277.244905][ T4858]  do_syscall_64+0x4c/0xa0
[  277.249340][ T4858]  ? clear_bhb_loop+0x30/0x80
[  277.254045][ T4858]  ? clear_bhb_loop+0x30/0x80
[  277.258739][ T4858]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  277.264650][ T4858] RIP: 0033:0x7f303caf138a
[  277.269088][ T4858] 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
[  277.288803][ T4858] RSP: 002b:00007ffc72ab5aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  277.297247][ T4858] RAX: ffffffffffffffda RBX: 00007ffc72ab5b30 RCX: 00007f303caf138a
[  277.305242][ T4858] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffc72ab5af0
[  277.313238][ T4858] RBP: 0000200000000400 R08: 00007ffc72ab5b30 R09: 0000000000000000
[  277.321231][ T4858] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  277.329219][ T4858] R13: 00007ffc72ab5af0 R14: 00000000000125ed R15: 0000200000000640
[  277.337248][ T4858]  </TASK>
[  277.340348][ T4858] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  277.353506][ T4858] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  277.377258][ T4859] loop4: detected capacity change from 0 to 32768
[  277.484212][ T4859] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  277.491770][ T4859] CPU: 1 PID: 4859 Comm: syz.4.397 Not tainted syzkaller #0
[  277.499079][ T4859] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  277.509145][ T4859] Call Trace:
[  277.512439][ T4859]  <TASK>
[  277.515393][ T4859]  dump_stack_lvl+0x168/0x230
[  277.520105][ T4859]  ? show_regs_print_info+0x20/0x20
[  277.525331][ T4859]  ? load_image+0x3b0/0x3b0
[  277.529865][ T4859]  sysfs_create_dir_ns+0x252/0x280
[  277.535014][ T4859]  ? __lock_acquire+0x7c60/0x7c60
[  277.540060][ T4859]  ? sysfs_warn_dup+0xa0/0xa0
[  277.544767][ T4859]  ? do_raw_spin_unlock+0x11d/0x230
[  277.549991][ T4859]  kobject_add_internal+0x662/0xd00
[  277.555223][ T4859]  kobject_init_and_add+0x122/0x190
[  277.560457][ T4859]  ? lockdep_softirqs_off+0x420/0x420
[  277.565859][ T4859]  ? kobject_add+0x210/0x210
[  277.570469][ T4859]  ? __init_swait_queue_head+0xa5/0x150
[  277.576038][ T4859]  gfs2_sys_fs_add+0x234/0x480
[  277.580821][ T4859]  ? gfs2_recover_set+0x240/0x240
[  277.585885][ T4859]  ? snprintf+0xd7/0x120
[  277.590148][ T4859]  ? __free_pages+0x95/0x1a0
[  277.594802][ T4859]  ? vscnprintf+0x80/0x80
[  277.599183][ T4859]  gfs2_fill_super+0x128d/0x1f50
[  277.604167][ T4859]  ? gfs2_reconfigure+0xcd0/0xcd0
[  277.609211][ T4859]  ? preempt_count_add+0x8d/0x190
[  277.614386][ T4859]  ? sb_set_blocksize+0xa5/0xe0
[  277.619260][ T4859]  get_tree_bdev+0x3f1/0x610
[  277.623878][ T4859]  ? gfs2_reconfigure+0xcd0/0xcd0
[  277.628924][ T4859]  gfs2_get_tree+0x4d/0x1e0
[  277.633484][ T4859]  vfs_get_tree+0x88/0x270
[  277.638108][ T4859]  do_new_mount+0x24a/0xa40
[  277.642641][ T4859]  __se_sys_mount+0x2d6/0x3c0
[  277.647347][ T4859]  ? __x64_sys_mount+0xc0/0xc0
[  277.652135][ T4859]  ? lockdep_hardirqs_on+0x94/0x140
[  277.657351][ T4859]  ? __x64_sys_mount+0x1c/0xc0
[  277.662328][ T4859]  do_syscall_64+0x4c/0xa0
[  277.666763][ T4859]  ? clear_bhb_loop+0x30/0x80
[  277.671458][ T4859]  ? clear_bhb_loop+0x30/0x80
[  277.676320][ T4859]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  277.682227][ T4859] RIP: 0033:0x7faf0dd0538a
[  277.686668][ T4859] 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
[  277.696788][   T27] INFO: task syz.3.35:4456 blocked for more than 143 seconds.
[  277.706344][ T4859] RSP: 002b:00007ffe06a49088 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  277.706375][ T4859] RAX: ffffffffffffffda RBX: 00007ffe06a49110 RCX: 00007faf0dd0538a
[  277.706392][ T4859] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe06a490d0
[  277.706406][ T4859] RBP: 0000200000000400 R08: 00007ffe06a49110 R09: 0000000000000000
[  277.746434][ T4859] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  277.754432][ T4859] R13: 00007ffe06a490d0 R14: 00000000000125ed R15: 0000200000000640
[  277.762448][ T4859]  </TASK>
[  277.766221][ T4859] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  277.779678][ T4859] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  277.789022][   T27]       Not tainted syzkaller #0
[  277.794073][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  277.803069][   T27] task:syz.3.35        state:D stack:24800 pid: 4456 ppid:  4326 flags:0x00004004
[  277.812550][   T27] Call Trace:
[  277.816058][   T27]  <TASK>
[  277.819139][   T27]  __schedule+0x11bb/0x4390
[  277.823688][   T27]  ? rcu_read_lock_sched_held+0x86/0xf0
[  277.829843][   T27]  ? __bpf_trace_rcu_stall_warning+0x10/0x10
[  277.835860][   T27]  ? release_firmware_map_entry+0x190/0x190
[  277.842254][   T27]  ? __update_load_avg_cfs_rq+0x6d0/0xb80
[  277.848138][   T27]  ? cpufreq_update_util+0x91/0x230
[  277.853451][   T27]  schedule+0x11b/0x1e0
[  277.857766][   T27]  schedule_timeout+0x97/0x280
[  277.862554][   T27]  ? console_conditional_schedule+0x40/0x40
[  277.878778][   T27]  ? lockdep_hardirqs_on_prepare+0x3fc/0x760
[  277.884804][   T27]  ? lock_chain_count+0x20/0x20
[  278.132854][ T4861] loop1: detected capacity change from 0 to 32768
[  278.205546][ T4860] loop0: detected capacity change from 0 to 32768
[  278.466308][ T4862] loop5: detected capacity change from 0 to 32768
[  278.490935][   T27]  ? lock_chain_count+0x20/0x20
[  278.496047][   T27]  ? _raw_spin_unlock_irq+0x1f/0x40
[  278.503231][   T27]  ? lockdep_hardirqs_on+0x94/0x140
[  278.516633][   T27]  do_wait_for_common+0x29a/0x440
[  278.527121][   T27]  ? console_conditional_schedule+0x40/0x40
[  278.536849][   T27]  ? wait_for_completion_killable_timeout+0x60/0x60
[  278.548693][ T4863] loop2: detected capacity change from 0 to 32768
[  278.552958][   T27]  ? _raw_spin_lock_irq+0xab/0xe0
[  278.560990][   T27]  ? try_to_wake_up+0x6cf/0x1050
[  278.566670][   T27]  wait_for_completion+0x48/0x60
[  278.572124][   T27]  kthread_stop+0x16e/0x540
[  278.576878][   T27]  gfs2_make_fs_ro+0x14c/0x5d0
[  278.581648][   T27]  ? gfs2_dinode_out+0xb00/0xb00
[  278.587030][   T27]  ? do_raw_spin_lock+0x11d/0x280
[  278.592081][   T27]  ? __rwlock_init+0x140/0x140
[  278.597011][   T27]  ? do_raw_spin_unlock+0x11d/0x230
[  278.602222][   T27]  ? gfs2_glock_is_locked_by_me+0x16f/0x190
[  278.608370][   T27]  gfs2_withdraw+0x5f9/0x1460
[  278.613094][   T27]  ? gfs2_lm+0x220/0x220
[  278.617500][   T27]  ? gfs2_meta_buffer+0x310/0x310
[  278.622535][   T27]  ? from_kuid_munged+0x690/0x690
[  278.627700][   T27]  gfs2_metatype_check_ii+0x74/0x90
[  278.632903][   T27]  gfs2_quota_init+0xc81/0xe80
[  278.637872][   T27]  ? qd_get+0x5f0/0x5f0
[  278.642066][   T27]  gfs2_make_fs_rw+0x3f5/0x560
[  278.646922][   T27]  ? _raw_spin_unlock+0x24/0x40
[  278.651804][   T27]  ? gfs2_glock_nq+0xcb0/0x1550
[  278.657506][   T27]  ? gfs2_jdesc_check+0x290/0x290
[  278.663056][   T27]  gfs2_fill_super+0x188a/0x1f50
[  278.668170][   T27]  ? gfs2_reconfigure+0xcd0/0xcd0
[  278.673222][   T27]  ? gfs2_glock_nq_num+0x82/0x1b0
[  278.678299][   T27]  ? preempt_count_add+0x8d/0x190
[  278.683324][   T27]  ? gfs2_freeze_lock+0x52/0xc0
[  278.688372][   T27]  ? sb_set_blocksize+0xa5/0xe0
[  278.693381][   T27]  get_tree_bdev+0x3f1/0x610
[  278.698186][   T27]  ? gfs2_reconfigure+0xcd0/0xcd0
[  278.703225][   T27]  gfs2_get_tree+0x4d/0x1e0
[  278.707904][   T27]  vfs_get_tree+0x88/0x270
[  278.712332][   T27]  do_new_mount+0x24a/0xa40
[  278.716863][   T27]  __se_sys_mount+0x2d6/0x3c0
[  278.721559][   T27]  ? __x64_sys_mount+0xc0/0xc0
[  278.726318][   T27]  ? lockdep_hardirqs_on+0x94/0x140
[  278.731723][   T27]  ? __x64_sys_mount+0x1c/0xc0
[  278.736498][   T27]  do_syscall_64+0x4c/0xa0
[  278.741072][   T27]  ? clear_bhb_loop+0x30/0x80
[  278.745744][   T27]  ? clear_bhb_loop+0x30/0x80
[  278.750508][   T27]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  278.756406][   T27] RIP: 0033:0x7f6e61b5938a
[  278.760898][   T27] RSP: 002b:00007ffd3e82d848 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  278.770180][   T27] RAX: ffffffffffffffda RBX: 00007ffd3e82d8d0 RCX: 00007f6e61b5938a
[  278.778372][   T27] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd3e82d890
[  278.786356][   T27] RBP: 0000200000000400 R08: 00007ffd3e82d8d0 R09: 0000000000000000
[  278.794461][   T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  278.802745][   T27] R13: 00007ffd3e82d890 R14: 00000000000125ed R15: 0000200000000640
[  278.811108][   T27]  </TASK>
[  278.814531][   T27] INFO: task gfs2_quotad:4461 blocked for more than 144 seconds.
[  278.822778][   T27]       Not tainted syzkaller #0
[  278.828487][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  278.837449][   T27] task:gfs2_quotad     state:D stack:27112 pid: 4461 ppid:     2 flags:0x00004000
[  278.847058][   T27] Call Trace:
[  278.850497][   T27]  <TASK>
[  278.853440][   T27]  __schedule+0x11bb/0x4390
[  278.858191][   T27]  ? lockdep_hardirqs_on_prepare+0x3fc/0x760
[  278.864202][   T27]  ? lock_chain_count+0x20/0x20
[  278.870074][   T27]  ? release_firmware_map_entry+0x190/0x190
[  278.876291][   T27]  ? _raw_spin_lock_irqsave+0xb0/0xf0
[  278.881769][   T27]  ? _raw_spin_unlock_irqrestore+0x82/0x100
[  278.887742][   T27]  ? lockdep_hardirqs_on+0x94/0x140
[  278.892936][   T27]  ? _raw_spin_unlock_irqrestore+0xaa/0x100
[  278.898910][   T27]  schedule+0x11b/0x1e0
[  278.903110][   T27]  bit_wait+0xd/0xc0
[  278.907237][   T27]  out_of_line_wait_on_bit+0x15e/0x200
[  278.912851][   T27]  ? out_of_line_wait_on_bit_lock+0x160/0x160
[  278.919836][   T27]  ? __wait_on_bit+0x170/0x170
[  278.924758][   T27]  ? bit_waitqueue+0x30/0x30
[  278.929449][   T27]  ? do_raw_spin_unlock+0x11d/0x230
[  278.934645][   T27]  __gfs2_glock_dq+0x6b5/0xa10
[  278.939596][   T27]  gfs2_glock_dq_uninit+0x4f/0x110
[  278.944702][   T27]  gfs2_statfs_sync+0x6fa/0x780
[  278.949780][   T27]  ? update_statfs+0x320/0x320
[  278.954683][   T27]  ? finish_task_switch+0x12f/0x640
[  278.959987][   T27]  ? gfs2_statfs_sync+0x138/0x780
[  278.965015][   T27]  gfs2_quotad+0x365/0x880
[  278.970287][   T27]  ? gfs2_wake_up_statfs+0xc0/0xc0
[  278.975404][   T27]  ? _raw_spin_unlock_irqrestore+0x82/0x100
[  278.981483][   T27]  ? init_wait_entry+0xd0/0xd0
[  278.986262][   T27]  ? _raw_spin_unlock_irqrestore+0xaa/0x100
[  278.992283][   T27]  ? __kthread_parkme+0x157/0x1b0
[  278.997476][   T27]  kthread+0x436/0x520
[  279.001578][   T27]  ? gfs2_wake_up_statfs+0xc0/0xc0
[  279.006861][   T27]  ? kthread_blkcg+0xd0/0xd0
[  279.011464][   T27]  ret_from_fork+0x1f/0x30
[  279.015900][   T27]  </TASK>
[  279.019611][   T27] 
[  279.019611][   T27] Showing all locks held in the system:
[  279.033099][ T4860] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.034197][ T4863] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.040671][ T4860] CPU: 1 PID: 4860 Comm: syz.0.398 Not tainted syzkaller #0
[  279.040698][ T4860] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  279.040711][ T4860] Call Trace:
[  279.040720][ T4860]  <TASK>
[  279.040730][ T4860]  dump_stack_lvl+0x168/0x230
[  279.040761][ T4860]  ? show_regs_print_info+0x20/0x20
[  279.040792][ T4860]  ? load_image+0x3b0/0x3b0
[  279.040827][ T4860]  sysfs_create_dir_ns+0x252/0x280
[  279.040850][ T4860]  ? __lock_acquire+0x7c60/0x7c60
[  279.040873][ T4860]  ? sysfs_warn_dup+0xa0/0xa0
[  279.040900][ T4860]  ? do_raw_spin_unlock+0x11d/0x230
[  279.040925][ T4860]  kobject_add_internal+0x662/0xd00
[  279.040956][ T4860]  kobject_init_and_add+0x122/0x190
[  279.040976][ T4860]  ? lockdep_softirqs_off+0x420/0x420
[  279.041003][ T4860]  ? kobject_add+0x210/0x210
[  279.041029][ T4860]  ? __init_swait_queue_head+0xa5/0x150
[  279.041057][ T4860]  gfs2_sys_fs_add+0x234/0x480
[  279.041081][ T4860]  ? gfs2_recover_set+0x240/0x240
[  279.041102][ T4860]  ? snprintf+0xd7/0x120
[  279.041123][ T4860]  ? __free_pages+0x95/0x1a0
[  279.041147][ T4860]  ? vscnprintf+0x80/0x80
[  279.041180][ T4860]  gfs2_fill_super+0x128d/0x1f50
[  279.041218][ T4860]  ? gfs2_reconfigure+0xcd0/0xcd0
[  279.041244][ T4860]  ? preempt_count_add+0x8d/0x190
[  279.041279][ T4860]  ? sb_set_blocksize+0xa5/0xe0
[  279.041304][ T4860]  get_tree_bdev+0x3f1/0x610
[  279.041328][ T4860]  ? gfs2_reconfigure+0xcd0/0xcd0
[  279.041352][ T4860]  gfs2_get_tree+0x4d/0x1e0
[  279.041375][ T4860]  vfs_get_tree+0x88/0x270
[  279.193636][ T4860]  do_new_mount+0x24a/0xa40
[  279.198170][ T4860]  __se_sys_mount+0x2d6/0x3c0
[  279.202858][ T4860]  ? __x64_sys_mount+0xc0/0xc0
[  279.207635][ T4860]  ? lockdep_hardirqs_on+0x94/0x140
[  279.213177][ T4860]  ? __x64_sys_mount+0x1c/0xc0
[  279.217942][ T4860]  do_syscall_64+0x4c/0xa0
[  279.222353][ T4860]  ? clear_bhb_loop+0x30/0x80
[  279.227034][ T4860]  ? clear_bhb_loop+0x30/0x80
[  279.231710][ T4860]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  279.237604][ T4860] RIP: 0033:0x7f9530bc438a
[  279.242023][ T4860] 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
[  279.261629][ T4860] RSP: 002b:00007ffd38ead2c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.270042][ T4860] RAX: ffffffffffffffda RBX: 00007ffd38ead350 RCX: 00007f9530bc438a
[  279.278012][ T4860] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd38ead310
[  279.285986][ T4860] RBP: 0000200000000400 R08: 00007ffd38ead350 R09: 0000000000000000
[  279.293965][ T4860] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  279.302115][ T4860] R13: 00007ffd38ead310 R14: 00000000000125ed R15: 0000200000000640
[  279.310103][ T4860]  </TASK>
[  279.313124][ T4863] CPU: 0 PID: 4863 Comm: syz.2.401 Not tainted syzkaller #0
[  279.313799][ T4860] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  279.320427][ T4863] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  279.320442][ T4863] Call Trace:
[  279.320450][ T4863]  <TASK>
[  279.320458][ T4863]  dump_stack_lvl+0x168/0x230
[  279.333566][ T4860] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.343607][ T4863]  ? show_regs_print_info+0x20/0x20
[  279.343642][ T4863]  ? load_image+0x3b0/0x3b0
[  279.352568][ T4861] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.354572][ T4863]  sysfs_create_dir_ns+0x252/0x280
[  279.383187][ T4863]  ? __lock_acquire+0x7c60/0x7c60
[  279.388221][ T4863]  ? sysfs_warn_dup+0xa0/0xa0
[  279.392991][ T4863]  ? do_raw_spin_unlock+0x11d/0x230
[  279.398189][ T4863]  kobject_add_internal+0x662/0xd00
[  279.403419][ T4863]  kobject_init_and_add+0x122/0x190
[  279.408613][ T4863]  ? lockdep_softirqs_off+0x420/0x420
[  279.413997][ T4863]  ? kobject_add+0x210/0x210
[  279.418590][ T4863]  ? __init_swait_queue_head+0xa5/0x150
[  279.424140][ T4863]  gfs2_sys_fs_add+0x234/0x480
[  279.428900][ T4863]  ? gfs2_recover_set+0x240/0x240
[  279.433923][ T4863]  ? snprintf+0xd7/0x120
[  279.438169][ T4863]  ? __free_pages+0x95/0x1a0
[  279.442761][ T4863]  ? vscnprintf+0x80/0x80
[  279.447358][ T4863]  gfs2_fill_super+0x128d/0x1f50
[  279.452323][ T4863]  ? gfs2_reconfigure+0xcd0/0xcd0
[  279.457450][ T4863]  ? preempt_count_add+0x8d/0x190
[  279.462507][ T4863]  ? sb_set_blocksize+0xa5/0xe0
[  279.467395][ T4863]  get_tree_bdev+0x3f1/0x610
[  279.472002][ T4863]  ? gfs2_reconfigure+0xcd0/0xcd0
[  279.477042][ T4863]  gfs2_get_tree+0x4d/0x1e0
[  279.481559][ T4863]  vfs_get_tree+0x88/0x270
[  279.485979][ T4863]  do_new_mount+0x24a/0xa40
[  279.490488][ T4863]  __se_sys_mount+0x2d6/0x3c0
[  279.495170][ T4863]  ? __x64_sys_mount+0xc0/0xc0
[  279.499934][ T4863]  ? lockdep_hardirqs_on+0x94/0x140
[  279.505135][ T4863]  ? __x64_sys_mount+0x1c/0xc0
[  279.509896][ T4863]  do_syscall_64+0x4c/0xa0
[  279.514310][ T4863]  ? clear_bhb_loop+0x30/0x80
[  279.519014][ T4863]  ? clear_bhb_loop+0x30/0x80
[  279.523691][ T4863]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  279.529582][ T4863] RIP: 0033:0x7f96b862d38a
[  279.533996][ T4863] 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
[  279.553614][ T4863] RSP: 002b:00007ffd68b69448 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.562032][ T4863] RAX: ffffffffffffffda RBX: 00007ffd68b694d0 RCX: 00007f96b862d38a
[  279.570005][ T4863] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd68b69490
[  279.577979][ T4863] RBP: 0000200000000400 R08: 00007ffd68b694d0 R09: 0000000000000000
[  279.585960][ T4863] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  279.593944][ T4863] R13: 00007ffd68b69490 R14: 00000000000125ed R15: 0000200000000640
[  279.601935][ T4863]  </TASK>
[  279.604961][ T4861] CPU: 1 PID: 4861 Comm: syz.1.399 Not tainted syzkaller #0
[  279.606425][ T4863] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  279.612269][ T4861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  279.612285][ T4861] Call Trace:
[  279.612292][ T4861]  <TASK>
[  279.612301][ T4861]  dump_stack_lvl+0x168/0x230
[  279.612334][ T4861]  ? show_regs_print_info+0x20/0x20
[  279.625797][ T4863] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.635564][ T4861]  ? load_image+0x3b0/0x3b0
[  279.635603][ T4861]  sysfs_create_dir_ns+0x252/0x280
[  279.635627][ T4861]  ? __lock_acquire+0x7c60/0x7c60
[  279.646795][ T4862] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.651770][ T4861]  ? sysfs_warn_dup+0xa0/0xa0
[  279.684987][ T4861]  ? do_raw_spin_unlock+0x11d/0x230
[  279.690204][ T4861]  kobject_add_internal+0x662/0xd00
[  279.695412][ T4861]  kobject_init_and_add+0x122/0x190
[  279.700607][ T4861]  ? lockdep_softirqs_off+0x420/0x420
[  279.705996][ T4861]  ? kobject_add+0x210/0x210
[  279.710588][ T4861]  ? __init_swait_queue_head+0xa5/0x150
[  279.716150][ T4861]  gfs2_sys_fs_add+0x234/0x480
[  279.721002][ T4861]  ? gfs2_recover_set+0x240/0x240
[  279.726027][ T4861]  ? snprintf+0xd7/0x120
[  279.730360][ T4861]  ? __free_pages+0x95/0x1a0
[  279.734964][ T4861]  ? vscnprintf+0x80/0x80
[  279.739923][ T4861]  gfs2_fill_super+0x128d/0x1f50
[  279.744993][ T4861]  ? gfs2_reconfigure+0xcd0/0xcd0
[  279.750018][ T4861]  ? preempt_count_add+0x8d/0x190
[  279.755141][ T4861]  ? sb_set_blocksize+0xa5/0xe0
[  279.759997][ T4861]  get_tree_bdev+0x3f1/0x610
[  279.764599][ T4861]  ? gfs2_reconfigure+0xcd0/0xcd0
[  279.769624][ T4861]  gfs2_get_tree+0x4d/0x1e0
[  279.774225][ T4861]  vfs_get_tree+0x88/0x270
[  279.778665][ T4861]  do_new_mount+0x24a/0xa40
[  279.783179][ T4861]  __se_sys_mount+0x2d6/0x3c0
[  279.787877][ T4861]  ? __x64_sys_mount+0xc0/0xc0
[  279.792665][ T4861]  ? lockdep_hardirqs_on+0x94/0x140
[  279.797888][ T4861]  ? __x64_sys_mount+0x1c/0xc0
[  279.802663][ T4861]  do_syscall_64+0x4c/0xa0
[  279.807079][ T4861]  ? clear_bhb_loop+0x30/0x80
[  279.811759][ T4861]  ? clear_bhb_loop+0x30/0x80
[  279.816438][ T4861]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  279.822330][ T4861] RIP: 0033:0x7f303caf138a
[  279.826746][ T4861] 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
[  279.846440][ T4861] RSP: 002b:00007ffc72ab5aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.854856][ T4861] RAX: ffffffffffffffda RBX: 00007ffc72ab5b30 RCX: 00007f303caf138a
[  279.862836][ T4861] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffc72ab5af0
[  279.870823][ T4861] RBP: 0000200000000400 R08: 00007ffc72ab5b30 R09: 0000000000000000
[  279.879140][ T4861] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  279.887110][ T4861] R13: 00007ffc72ab5af0 R14: 00000000000125ed R15: 0000200000000640
[  279.895096][ T4861]  </TASK>
[  279.898116][ T4862] CPU: 0 PID: 4862 Comm: syz.5.400 Not tainted syzkaller #0
[  279.898926][ T4861] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  279.905429][ T4862] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  279.918545][ T4861] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.928564][ T4862] Call Trace:
[  279.928574][ T4862]  <TASK>
[  279.928583][ T4862]  dump_stack_lvl+0x168/0x230
[  279.945969][ T4862]  ? show_regs_print_info+0x20/0x20
[  279.951192][ T4862]  ? load_image+0x3b0/0x3b0
[  279.955728][ T4862]  sysfs_create_dir_ns+0x252/0x280
[  279.960864][ T4862]  ? __lock_acquire+0x7c60/0x7c60
[  279.965908][ T4862]  ? sysfs_warn_dup+0xa0/0xa0
[  279.970703][ T4862]  ? do_raw_spin_unlock+0x11d/0x230
[  279.975931][ T4862]  kobject_add_internal+0x662/0xd00
[  279.981331][ T4862]  kobject_init_and_add+0x122/0x190
[  279.986547][ T4862]  ? lockdep_softirqs_off+0x420/0x420
[  279.991938][ T4862]  ? kobject_add+0x210/0x210
[  279.996553][ T4862]  ? __init_swait_queue_head+0xa5/0x150
[  280.002129][ T4862]  gfs2_sys_fs_add+0x234/0x480
[  280.006920][ T4862]  ? gfs2_recover_set+0x240/0x240
[  280.012054][ T4862]  ? snprintf+0xd7/0x120
[  280.016325][ T4862]  ? __free_pages+0x95/0x1a0
[  280.021031][ T4862]  ? vscnprintf+0x80/0x80
[  280.024596][   T27] 2 locks held by kworker/u4:0/9:
[  280.025476][ T4862]  gfs2_fill_super+0x128d/0x1f50
[  280.035553][ T4862]  ? gfs2_reconfigure+0xcd0/0xcd0
[  280.040603][ T4862]  ? preempt_count_add+0x8d/0x190
[  280.045661][ T4862]  ? sb_set_blocksize+0xa5/0xe0
[  280.046630][   T27] 1 lock held by khungtaskd/27:
[  280.050533][ T4862]  get_tree_bdev+0x3f1/0x610
[  280.060070][ T4862]  ? gfs2_reconfigure+0xcd0/0xcd0
[  280.065119][ T4862]  gfs2_get_tree+0x4d/0x1e0
[  280.069655][ T4862]  vfs_get_tree+0x88/0x270
[  280.074197][ T4862]  do_new_mount+0x24a/0xa40
[  280.078731][ T4862]  __se_sys_mount+0x2d6/0x3c0
[  280.083442][ T4862]  ? __x64_sys_mount+0xc0/0xc0
[  280.088230][ T4862]  ? lockdep_hardirqs_on+0x94/0x140
[  280.093449][ T4862]  ? __x64_sys_mount+0x1c/0xc0
[  280.098236][ T4862]  do_syscall_64+0x4c/0xa0
[  280.102670][ T4862]  ? clear_bhb_loop+0x30/0x80
[  280.107365][ T4862]  ? clear_bhb_loop+0x30/0x80
[  280.112058][ T4862]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  280.117970][ T4862] RIP: 0033:0x7f189ed2638a
[  280.122400][ T4862] 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
[  280.142107][ T4862] RSP: 002b:00007ffd7103d4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  280.150551][ T4862] RAX: ffffffffffffffda RBX: 00007ffd7103d540 RCX: 00007f189ed2638a
[  280.158547][ T4862] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffd7103d500
[  280.166540][ T4862] RBP: 0000200000000400 R08: 00007ffd7103d540 R09: 0000000000000000
[  280.174528][ T4862] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  280.182517][ T4862] R13: 00007ffd7103d500 R14: 00000000000125ed R15: 0000200000000640
[  280.190523][ T4862]  </TASK>
[  280.195001][ T4862] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  280.209072][ T4862] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/09/01 14:49:47 executed programs: 395
[  280.228904][   T27]  #0: ffffffff8c11c460 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[  280.247534][   T27] 2 locks held by getty/3955:
[  280.259601][   T27]  #0: ffff88814c420098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[  280.286646][   T27]  #1: ffffc900026562e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5ba/0x1a30
[  280.305973][   T27] 3 locks held by kworker/1:5/4388:
[  280.311787][   T27]  #0: ffff888016870938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x760/0x1000
[  280.332258][   T27]  #1: ffffc9000437fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7a3/0x1000
[  280.353279][   T27]  #2: ffffffff8c120ee8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x347/0x6b0
[  280.364877][   T27] 2 locks held by kworker/1:12/4401:
[  280.377754][ T4864] loop4: detected capacity change from 0 to 32768
[  280.377938][   T27] 1 lock held by syz.3.35/4456:
[  280.389341][   T27]  #0: ffff88807e5120e0 (&type->s_umount_key#53/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950
[  280.399712][   T27] 1 lock held by syz.0.398/4860:
[  280.405127][   T27]  #0: ffff88814707b468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90
[  280.414512][   T27] 1 lock held by syz.1.399/4861:
[  280.419522][   T27]  #0: ffff88814707e468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90
[  280.428854][   T27] 2 locks held by syz.5.400/4862:
[  280.433873][   T27]  #0: ffff8880203db918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[  280.443445][   T27]  #1: ffff8880207ba468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[  280.452978][   T27] 1 lock held by syz.2.401/4863:
[  280.458111][   T27]  #0: ffff8880206b9468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90
[  280.467718][   T27] 2 locks held by syz.4.402/4864:
[  280.472831][   T27]  #0: ffff8880203d9918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[  280.482353][   T27]  #1: ffff8880206bf468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[  280.491576][   T27] 
[  280.493989][   T27] =============================================
[  280.493989][   T27] 
[  280.502475][   T27] NMI backtrace for cpu 0
[  280.506825][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[  280.514120][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  280.524294][   T27] Call Trace:
[  280.527583][   T27]  <TASK>
[  280.530531][   T27]  dump_stack_lvl+0x168/0x230
[  280.535260][   T27]  ? show_regs_print_info+0x20/0x20
[  280.540488][   T27]  ? load_image+0x3b0/0x3b0
[  280.545103][   T27]  ? tick_nohz_tick_stopped+0x7b/0xb0
[  280.550496][   T27]  ? nmi_cpu_backtrace+0x1b6/0x3d0
[  280.555636][   T27]  nmi_cpu_backtrace+0x397/0x3d0
[  280.560596][   T27]  ? nmi_trigger_cpumask_backtrace+0x280/0x280
[  280.566769][   T27]  ? _printk+0xcc/0x110
[  280.570946][   T27]  ? load_image+0x3b0/0x3b0
[  280.575471][   T27]  ? load_image+0x3b0/0x3b0
[  280.580003][   T27]  ? arch_trigger_cpumask_backtrace+0x10/0x10
[  280.586100][   T27]  nmi_trigger_cpumask_backtrace+0x163/0x280
[  280.592110][   T27]  watchdog+0xe0f/0xe50
[  280.596298][   T27]  kthread+0x436/0x520
[  280.600385][   T27]  ? hungtask_pm_notify+0x40/0x40
[  280.605438][   T27]  ? kthread_blkcg+0xd0/0xd0
[  280.610048][   T27]  ret_from_fork+0x1f/0x30
[  280.614496][   T27]  </TASK>
[  280.618719][   T27] Sending NMI from CPU 0 to CPUs 1:
[  280.624047][    C1] NMI backtrace for cpu 1
[  280.624059][    C1] CPU: 1 PID: 4865 Comm: syz.2.403 Not tainted syzkaller #0
[  280.624076][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  280.624085][    C1] RIP: 0010:__sanitizer_cov_trace_pc+0x2c/0x60
[  280.624105][    C1] Code: 04 24 65 48 8b 0d 04 a5 8a 7e 65 8b 15 05 a5 8a 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 34 16 00 00 00 74 2c <8b> 91 10 16 00 00 83 fa 02 75 21 48 8b 91 18 16 00 00 48 8b 32 48
[  280.624119][    C1] RSP: 0000:ffffc90006337e00 EFLAGS: 00000246
[  280.624133][    C1] RAX: ffffffff81a99b5a RBX: 00007f96afbe6000 RCX: ffff88802c6d3b80
[  280.624145][    C1] RDX: 0000000000000000 RSI: 00007f96afbe6000 RDI: 00007f96b7c9c000
[  280.624155][    C1] RBP: dffffc0000000000 R08: dffffc0000000000 R09: ffffed1003d7def8
[  280.624166][    C1] R10: ffffed1003d7def8 R11: 1ffff11003d7def7 R12: ffff888072c43840
[  280.624176][    C1] R13: 0000000000000004 R14: 00007f96b7c9c000 R15: ffff888072c43880
[  280.624187][    C1] FS:  00005555839d8500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
[  280.624200][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  280.624211][    C1] CR2: 00007f96afbe6000 CR3: 00000000598c3000 CR4: 00000000003506e0
[  280.624226][    C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  280.624235][    C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  280.624245][    C1] Call Trace:
[  280.624250][    C1]  <TASK>
[  280.624255][    C1]  vmacache_find+0x52a/0x590
[  280.624274][    C1]  find_vma+0xc5/0x230
[  280.624297][    C1]  do_user_addr_fault+0x300/0xc80
[  280.624314][    C1]  ? vtime_user_exit+0x2dc/0x400
[  280.624331][    C1]  ? rcu_is_watching+0x11/0xa0
[  280.624346][    C1]  exc_page_fault+0x60/0x100
[  280.624362][    C1]  asm_exc_page_fault+0x22/0x30
[  280.624376][    C1] RIP: 0033:0x7f96b84edc50
[  280.624390][    C1] Code: 39 4f 08 72 4c 8d 4d ff 85 ed 74 33 66 0f 1f 44 00 00 48 39 f0 72 1b 4d 8b 07 49 89 c1 49 29 f1 47 0f b6 0c 08 45 84 c9 74 08 <45> 88 0c 00 49 8b 47 10 48 83 c0 01 49 89 47 10 83 e9 01 73 d3 41
[  280.624402][    C1] RSP: 002b:00007ffd68b68a80 EFLAGS: 00010202
[  280.624414][    C1] RAX: 000000000034a000 RBX: 00007ffd68b68b20 RCX: 000000000000001e
[  280.624425][    C1] RDX: 00000000000007ff RSI: 0000000000001000 RDI: 00007ffd68b68bc0
[  280.624435][    C1] RBP: 000000000000001f R08: 00007f96af89c000 R09: 0000000000000001
[  280.624445][    C1] R10: 0000200000012542 R11: 00000000000125eb R12: 0000000000000c01
[  280.624455][    C1] R13: 00007f96b86caa20 R14: 0000000000000017 R15: 00007ffd68b68bc0
[  280.624471][    C1]  </TASK>
[  280.809171][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  280.879135][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[  280.886352][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  280.896412][   T27] Call Trace:
[  280.899695][   T27]  <TASK>
[  280.902629][   T27]  dump_stack_lvl+0x168/0x230
[  280.907374][   T27]  ? show_regs_print_info+0x20/0x20
[  280.912582][   T27]  ? load_image+0x3b0/0x3b0
[  280.917120][   T27]  panic+0x2c9/0x7f0
[  280.921304][   T27]  ? schedule_preempt_disabled+0x20/0x20
[  280.926959][   T27]  ? bpf_jit_dump+0xd0/0xd0
[  280.931478][   T27]  ? __irq_work_queue_local+0x12c/0x190
[  280.937046][   T27]  ? nmi_trigger_cpumask_backtrace+0x260/0x280
[  280.943232][   T27]  watchdog+0xe4e/0xe50
[  280.947431][   T27]  kthread+0x436/0x520
[  280.951516][   T27]  ? hungtask_pm_notify+0x40/0x40
[  280.956557][   T27]  ? kthread_blkcg+0xd0/0xd0
[  280.961165][   T27]  ret_from_fork+0x1f/0x30
[  280.965612][   T27]  </TASK>
[  280.968840][   T27] Kernel Offset: disabled
[  280.973161][   T27] Rebooting in 86400 seconds..