? gfs2_reconfigure+0xd30/0xd30
[  235.928124][ T6667]  gfs2_get_tree+0x4d/0x1e0
[  235.932674][ T6667]  vfs_get_tree+0x88/0x270
[  235.937345][ T6667]  do_new_mount+0x24a/0xa40
[  235.941960][ T6667]  __se_sys_mount+0x2e3/0x3d0
[  235.947336][ T6667]  ? __x64_sys_mount+0xc0/0xc0
[  235.952882][ T6667]  ? lockdep_hardirqs_on+0x94/0x140
[  235.958112][ T6667]  ? __x64_sys_mount+0x1c/0xc0
[  235.963400][ T6667]  do_syscall_64+0x4c/0xa0
[  235.968058][ T6667]  ? clear_bhb_loop+0x30/0x80
[  235.972930][ T6667]  ? clear_bhb_loop+0x30/0x80
[  235.977737][ T6667]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  235.984585][ T6667] RIP: 0033:0x7f44b1b26b8a
[  235.989379][ T6667] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  236.012503][ T6667] RSP: 002b:00007f44b0d8be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  236.022150][ T6667] RAX: ffffffffffffffda RBX: 00007f44b0d8bee0 RCX: 00007f44b1b26b8a
[  236.030666][ T6667] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f44b0d8bea0
[  236.039670][ T6667] RBP: 0000200000000400 R08: 00007f44b0d8bee0 R09: 0000000000000000
[  236.047865][ T6667] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  236.056294][ T6667] R13: 00007f44b0d8bea0 R14: 00000000000125bb R15: 00002000000004c0
[  236.065288][ T6667]  </TASK>
[  236.069053][ T6667] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  236.082858][ T6667] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  236.111522][ T6664] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  236.119966][ T6664] CPU: 0 PID: 6664 Comm: syz.1.446 Not tainted syzkaller #0
[  236.128280][ T6664] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  236.138442][ T6664] Call Trace:
[  236.141994][ T6664]  <TASK>
[  236.145192][ T6664]  dump_stack_lvl+0x188/0x250
[  236.148634][ T6665] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  236.150064][ T6664]  ? show_regs_print_info+0x20/0x20
[  236.164190][ T6664]  ? load_image+0x400/0x400
[  236.169456][ T6664]  sysfs_create_dir_ns+0x26a/0x290
[  236.175252][ T6664]  ? sysfs_warn_dup+0xa0/0xa0
[  236.180497][ T6664]  ? do_raw_spin_unlock+0x11d/0x230
[  236.186575][ T6664]  kobject_add_internal+0x6e0/0xd90
[  236.191917][ T6664]  kobject_init_and_add+0x128/0x190
[  236.197967][ T6664]  ? lockdep_softirqs_off+0x430/0x430
[  236.203866][ T6664]  ? kobject_add+0x230/0x230
[  236.209539][ T6664]  ? __init_swait_queue_head+0xa5/0x150
[  236.215430][ T6664]  gfs2_sys_fs_add+0x24f/0x4b0
[  236.220400][ T6664]  ? gfs2_recover_set+0x240/0x240
[  236.225539][ T6664]  ? snprintf+0xe5/0x140
[  236.229894][ T6664]  ? __free_pages+0x95/0x1a0
[  236.234938][ T6664]  ? vscnprintf+0x80/0x80
[  236.239305][ T6664]  gfs2_fill_super+0x120f/0x1f00
[  236.245345][ T6664]  ? gfs2_reconfigure+0xd30/0xd30
[  236.250710][ T6664]  ? sb_set_blocksize+0xa5/0xe0
[  236.255565][ T6664]  get_tree_bdev+0x3f1/0x610
[  236.260253][ T6664]  ? gfs2_reconfigure+0xd30/0xd30
[  236.265390][ T6664]  gfs2_get_tree+0x4d/0x1e0
[  236.269979][ T6664]  vfs_get_tree+0x88/0x270
[  236.274949][ T6664]  do_new_mount+0x24a/0xa40
[  236.280142][ T6664]  __se_sys_mount+0x2e3/0x3d0
[  236.286361][ T6664]  ? __x64_sys_mount+0xc0/0xc0
[  236.291980][ T6664]  ? lockdep_hardirqs_on+0x94/0x140
[  236.297298][ T6664]  ? __x64_sys_mount+0x1c/0xc0
[  236.302336][ T6664]  do_syscall_64+0x4c/0xa0
[  236.306838][ T6664]  ? clear_bhb_loop+0x30/0x80
[  236.311498][ T6664]  ? clear_bhb_loop+0x30/0x80
[  236.316173][ T6664]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  236.322081][ T6664] RIP: 0033:0x7f5a08da6b8a
[  236.326495][ T6664] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  236.346921][ T6664] RSP: 002b:00007f5a0800be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  236.355341][ T6664] RAX: ffffffffffffffda RBX: 00007f5a0800bee0 RCX: 00007f5a08da6b8a
[  236.363355][ T6664] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f5a0800bea0
[  236.371395][ T6664] RBP: 0000200000000400 R08: 00007f5a0800bee0 R09: 0000000000000000
[  236.379539][ T6664] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  236.387941][ T6664] R13: 00007f5a0800bea0 R14: 00000000000125bb R15: 00002000000004c0
[  236.395917][ T6664]  </TASK>
[  236.398939][ T6665] CPU: 1 PID: 6665 Comm: syz.0.445 Not tainted syzkaller #0
[  236.400073][ T6664] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  236.406399][ T6665] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  236.406410][ T6665] Call Trace:
[  236.406415][ T6665]  <TASK>
[  236.406421][ T6665]  dump_stack_lvl+0x188/0x250
[  236.419773][ T6664] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  236.429814][ T6665]  ? show_regs_print_info+0x20/0x20
[  236.429835][ T6665]  ? load_image+0x400/0x400
[  236.429856][ T6665]  sysfs_create_dir_ns+0x26a/0x290
[  236.462820][ T6665]  ? sysfs_warn_dup+0xa0/0xa0
[  236.467509][ T6665]  ? do_raw_spin_unlock+0x11d/0x230
[  236.472730][ T6665]  kobject_add_internal+0x6e0/0xd90
[  236.478036][ T6665]  kobject_init_and_add+0x128/0x190
[  236.483439][ T6665]  ? lockdep_softirqs_off+0x430/0x430
[  236.489126][ T6665]  ? kobject_add+0x230/0x230
[  236.493735][ T6665]  ? __init_swait_queue_head+0xa5/0x150
[  236.499739][ T6665]  gfs2_sys_fs_add+0x24f/0x4b0
[  236.504907][ T6665]  ? gfs2_recover_set+0x240/0x240
[  236.510768][ T6665]  ? snprintf+0xe5/0x140
[  236.515130][ T6665]  ? __free_pages+0x95/0x1a0
[  236.519994][ T6665]  ? vscnprintf+0x80/0x80
[  236.524580][ T6665]  gfs2_fill_super+0x120f/0x1f00
[  236.529812][ T6665]  ? gfs2_reconfigure+0xd30/0xd30
[  236.534854][ T6665]  ? sb_set_blocksize+0xa5/0xe0
[  236.539978][ T6665]  get_tree_bdev+0x3f1/0x610
[  236.545294][ T6665]  ? gfs2_reconfigure+0xd30/0xd30
[  236.550421][ T6665]  gfs2_get_tree+0x4d/0x1e0
[  236.555031][ T6665]  vfs_get_tree+0x88/0x270
[  236.559468][ T6665]  do_new_mount+0x24a/0xa40
[  236.563996][ T6665]  __se_sys_mount+0x2e3/0x3d0
[  236.568693][ T6665]  ? __x64_sys_mount+0xc0/0xc0
[  236.573476][ T6665]  ? lockdep_hardirqs_on+0x94/0x140
[  236.578684][ T6665]  ? __x64_sys_mount+0x1c/0xc0
[  236.583482][ T6665]  do_syscall_64+0x4c/0xa0
[  236.587923][ T6665]  ? clear_bhb_loop+0x30/0x80
[  236.592623][ T6665]  ? clear_bhb_loop+0x30/0x80
[  236.597513][ T6665]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  236.603823][ T6665] RIP: 0033:0x7f0c3ee8bb8a
[  236.608640][ T6665] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  236.629050][ T6665] RSP: 002b:00007f0c3e0f0e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  236.638041][ T6665] RAX: ffffffffffffffda RBX: 00007f0c3e0f0ee0 RCX: 00007f0c3ee8bb8a
[  236.646024][ T6665] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f0c3e0f0ea0
[  236.654444][ T6665] RBP: 0000200000000400 R08: 00007f0c3e0f0ee0 R09: 0000000000000000
[  236.663981][ T6665] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  236.672761][ T6665] R13: 00007f0c3e0f0ea0 R14: 00000000000125bb R15: 00002000000004c0
[  236.681196][ T6665]  </TASK>
[  236.685274][ T6665] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  236.699009][ T6665] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  237.002945][ T6677] loop4: detected capacity change from 0 to 32768
2026/05/09 17:50:01 executed programs: 450
[  237.512521][ T6685] loop1: detected capacity change from 0 to 32768
[  237.513549][ T6677] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  237.527762][ T6677] CPU: 0 PID: 6677 Comm: syz.4.450 Not tainted syzkaller #0
[  237.535599][ T6677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  237.546659][ T6677] Call Trace:
[  237.550033][ T6677]  <TASK>
[  237.552974][ T6677]  dump_stack_lvl+0x188/0x250
[  237.558000][ T6677]  ? show_regs_print_info+0x20/0x20
[  237.563573][ T6677]  ? load_image+0x400/0x400
[  237.568152][ T6677]  sysfs_create_dir_ns+0x26a/0x290
[  237.573451][ T6677]  ? sysfs_warn_dup+0xa0/0xa0
[  237.578161][ T6677]  ? do_raw_spin_unlock+0x11d/0x230
[  237.583419][ T6677]  kobject_add_internal+0x6e0/0xd90
[  237.588656][ T6677]  kobject_init_and_add+0x128/0x190
[  237.594092][ T6677]  ? lockdep_softirqs_off+0x430/0x430
[  237.599574][ T6677]  ? kobject_add+0x230/0x230
[  237.604180][ T6677]  ? __init_swait_queue_head+0xa5/0x150
[  237.610015][ T6677]  gfs2_sys_fs_add+0x24f/0x4b0
[  237.614971][ T6677]  ? gfs2_recover_set+0x240/0x240
[  237.620015][ T6677]  ? snprintf+0xe5/0x140
[  237.624267][ T6677]  ? __free_pages+0x95/0x1a0
[  237.628874][ T6677]  ? vscnprintf+0x80/0x80
[  237.633222][ T6677]  gfs2_fill_super+0x120f/0x1f00
[  237.638269][ T6677]  ? gfs2_reconfigure+0xd30/0xd30
[  237.643333][ T6677]  ? sb_set_blocksize+0xa5/0xe0
[  237.648279][ T6677]  get_tree_bdev+0x3f1/0x610
[  237.653582][ T6677]  ? gfs2_reconfigure+0xd30/0xd30
[  237.658620][ T6677]  gfs2_get_tree+0x4d/0x1e0
[  237.663234][ T6677]  vfs_get_tree+0x88/0x270
[  237.667664][ T6677]  do_new_mount+0x24a/0xa40
[  237.672217][ T6677]  __se_sys_mount+0x2e3/0x3d0
[  237.677070][ T6677]  ? __x64_sys_mount+0xc0/0xc0
[  237.681848][ T6677]  ? lockdep_hardirqs_on+0x94/0x140
[  237.687065][ T6677]  ? __x64_sys_mount+0x1c/0xc0
[  237.691837][ T6677]  do_syscall_64+0x4c/0xa0
[  237.696350][ T6677]  ? clear_bhb_loop+0x30/0x80
[  237.701438][ T6677]  ? clear_bhb_loop+0x30/0x80
[  237.706832][ T6677]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  237.712913][ T6677] RIP: 0033:0x7fee58e0cb8a
[  237.717631][ T6677] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  237.723920][ T6687] loop3: detected capacity change from 0 to 32768
[  237.738399][ T6677] RSP: 002b:00007fee58071e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  237.738426][ T6677] RAX: ffffffffffffffda RBX: 00007fee58071ee0 RCX: 00007fee58e0cb8a
[  237.738435][ T6677] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fee58071ea0
[  237.738443][ T6677] RBP: 0000200000000400 R08: 00007fee58071ee0 R09: 0000000000000000
[  237.738452][ T6677] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  237.738460][ T6677] R13: 00007fee58071ea0 R14: 00000000000125bb R15: 00002000000004c0
[  237.738480][ T6677]  </TASK>
[  237.739164][ T6677] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  237.811405][ T6677] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  237.883564][ T6685] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  237.891197][ T6685] CPU: 1 PID: 6685 Comm: syz.1.455 Not tainted syzkaller #0
[  237.898923][ T6685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  237.909159][ T6685] Call Trace:
[  237.912435][ T6685]  <TASK>
[  237.915357][ T6685]  dump_stack_lvl+0x188/0x250
[  237.920027][ T6685]  ? show_regs_print_info+0x20/0x20
[  237.925214][ T6685]  ? load_image+0x400/0x400
[  237.929759][ T6685]  sysfs_create_dir_ns+0x26a/0x290
[  237.935225][ T6685]  ? sysfs_warn_dup+0xa0/0xa0
[  237.940002][ T6685]  ? do_raw_spin_unlock+0x11d/0x230
[  237.945485][ T6685]  kobject_add_internal+0x6e0/0xd90
[  237.950697][ T6685]  kobject_init_and_add+0x128/0x190
[  237.956085][ T6685]  ? lockdep_softirqs_off+0x430/0x430
[  237.961473][ T6685]  ? kobject_add+0x230/0x230
[  237.966336][ T6685]  ? __init_swait_queue_head+0xa5/0x150
[  237.972062][ T6685]  gfs2_sys_fs_add+0x24f/0x4b0
[  237.976940][ T6685]  ? gfs2_recover_set+0x240/0x240
[  237.982190][ T6685]  ? snprintf+0xe5/0x140
[  237.986618][ T6685]  ? __free_pages+0x95/0x1a0
[  237.991243][ T6685]  ? vscnprintf+0x80/0x80
[  237.995692][ T6685]  gfs2_fill_super+0x120f/0x1f00
[  238.000730][ T6685]  ? gfs2_reconfigure+0xd30/0xd30
[  238.005766][ T6685]  ? sb_set_blocksize+0xa5/0xe0
[  238.010619][ T6685]  get_tree_bdev+0x3f1/0x610
[  238.015403][ T6685]  ? gfs2_reconfigure+0xd30/0xd30
[  238.020590][ T6685]  gfs2_get_tree+0x4d/0x1e0
[  238.025108][ T6685]  vfs_get_tree+0x88/0x270
[  238.029982][ T6685]  do_new_mount+0x24a/0xa40
[  238.034941][ T6685]  __se_sys_mount+0x2e3/0x3d0
[  238.040004][ T6685]  ? __x64_sys_mount+0xc0/0xc0
[  238.044935][ T6685]  ? lockdep_hardirqs_on+0x94/0x140
[  238.050342][ T6685]  ? __x64_sys_mount+0x1c/0xc0
[  238.055124][ T6685]  do_syscall_64+0x4c/0xa0
[  238.059548][ T6685]  ? clear_bhb_loop+0x30/0x80
[  238.064427][ T6685]  ? clear_bhb_loop+0x30/0x80
[  238.069203][ T6685]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  238.075273][ T6685] RIP: 0033:0x7f5a08da6b8a
[  238.079688][ T6685] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  238.099723][ T6685] RSP: 002b:00007f5a0800be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  238.108242][ T6685] RAX: ffffffffffffffda RBX: 00007f5a0800bee0 RCX: 00007f5a08da6b8a
[  238.116481][ T6685] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f5a0800bea0
[  238.124461][ T6685] RBP: 0000200000000400 R08: 00007f5a0800bee0 R09: 0000000000000000
[  238.132519][ T6685] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  238.140501][ T6685] R13: 00007f5a0800bea0 R14: 00000000000125bb R15: 00002000000004c0
[  238.148508][ T6685]  </TASK>
[  238.151703][ T6687] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  238.152518][ T6685] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  238.159479][ T6687] CPU: 0 PID: 6687 Comm: syz.3.456 Not tainted syzkaller #0
[  238.173265][ T6685] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  238.180824][ T6687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  238.180835][ T6687] Call Trace:
[  238.180842][ T6687]  <TASK>
[  238.180851][ T6687]  dump_stack_lvl+0x188/0x250
[  238.209130][ T6687]  ? show_regs_print_info+0x20/0x20
[  238.214759][ T6687]  ? load_image+0x400/0x400
[  238.219274][ T6687]  sysfs_create_dir_ns+0x26a/0x290
[  238.224486][ T6687]  ? sysfs_warn_dup+0xa0/0xa0
[  238.229178][ T6687]  ? do_raw_spin_unlock+0x11d/0x230
[  238.234385][ T6687]  kobject_add_internal+0x6e0/0xd90
[  238.239783][ T6687]  kobject_init_and_add+0x128/0x190
[  238.245192][ T6687]  ? lockdep_softirqs_off+0x430/0x430
[  238.251098][ T6687]  ? kobject_add+0x230/0x230
[  238.255886][ T6687]  ? __init_swait_queue_head+0xa5/0x150
[  238.261452][ T6687]  gfs2_sys_fs_add+0x24f/0x4b0
[  238.266500][ T6687]  ? gfs2_recover_set+0x240/0x240
[  238.271535][ T6687]  ? snprintf+0xe5/0x140
[  238.275787][ T6687]  ? __free_pages+0x95/0x1a0
[  238.280579][ T6687]  ? vscnprintf+0x80/0x80
[  238.285005][ T6687]  gfs2_fill_super+0x120f/0x1f00
[  238.289963][ T6687]  ? gfs2_reconfigure+0xd30/0xd30
[  238.295013][ T6687]  ? sb_set_blocksize+0xa5/0xe0
[  238.299974][ T6687]  get_tree_bdev+0x3f1/0x610
[  238.305087][ T6687]  ? gfs2_reconfigure+0xd30/0xd30
[  238.310223][ T6687]  gfs2_get_tree+0x4d/0x1e0
[  238.314742][ T6687]  vfs_get_tree+0x88/0x270
[  238.319166][ T6687]  do_new_mount+0x24a/0xa40
[  238.323693][ T6687]  __se_sys_mount+0x2e3/0x3d0
[  238.328474][ T6687]  ? __x64_sys_mount+0xc0/0xc0
[  238.333260][ T6687]  ? lockdep_hardirqs_on+0x94/0x140
[  238.338593][ T6687]  ? __x64_sys_mount+0x1c/0xc0
[  238.343371][ T6687]  do_syscall_64+0x4c/0xa0
[  238.347842][ T6687]  ? clear_bhb_loop+0x30/0x80
[  238.352613][ T6687]  ? clear_bhb_loop+0x30/0x80
[  238.357304][ T6687]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  238.363378][ T6687] RIP: 0033:0x7fb9901ccb8a
[  238.368058][ T6687] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  238.387669][ T6687] RSP: 002b:00007fb98f431e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  238.396240][ T6687] RAX: ffffffffffffffda RBX: 00007fb98f431ee0 RCX: 00007fb9901ccb8a
[  238.405481][ T6687] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fb98f431ea0
[  238.413824][ T6687] RBP: 0000200000000400 R08: 00007fb98f431ee0 R09: 0000000000000000
[  238.421889][ T6687] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  238.429867][ T6687] R13: 00007fb98f431ea0 R14: 00000000000125bb R15: 00002000000004c0
[  238.437888][ T6687]  </TASK>
[  238.441857][ T6687] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  238.455768][ T6687] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  238.862007][ T6696] loop1: detected capacity change from 0 to 32768
[  238.903972][ T6697] loop3: detected capacity change from 0 to 32768
[  238.923825][ T6681] loop0: detected capacity change from 0 to 32768
[  238.947186][ T6696] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  238.955835][ T6696] CPU: 1 PID: 6696 Comm: syz.1.459 Not tainted syzkaller #0
[  238.963263][ T6696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  238.973419][ T6696] Call Trace:
[  238.976852][ T6696]  <TASK>
[  238.979797][ T6696]  dump_stack_lvl+0x188/0x250
[  238.982757][ T6697] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  238.984489][ T6696]  ? show_regs_print_info+0x20/0x20
[  238.984509][ T6696]  ? load_image+0x400/0x400
[  238.984530][ T6696]  sysfs_create_dir_ns+0x26a/0x290
[  238.984547][ T6696]  ? sysfs_warn_dup+0xa0/0xa0
[  239.012340][ T6696]  ? do_raw_spin_unlock+0x11d/0x230
[  239.017559][ T6696]  kobject_add_internal+0x6e0/0xd90
[  239.023158][ T6696]  kobject_init_and_add+0x128/0x190
[  239.028446][ T6696]  ? lockdep_softirqs_off+0x430/0x430
[  239.033906][ T6696]  ? kobject_add+0x230/0x230
[  239.038560][ T6696]  ? __init_swait_queue_head+0xa5/0x150
[  239.044199][ T6696]  gfs2_sys_fs_add+0x24f/0x4b0
[  239.048956][ T6696]  ? gfs2_recover_set+0x240/0x240
[  239.053975][ T6696]  ? snprintf+0xe5/0x140
[  239.058224][ T6696]  ? __free_pages+0x95/0x1a0
[  239.063148][ T6696]  ? vscnprintf+0x80/0x80
[  239.067645][ T6696]  gfs2_fill_super+0x120f/0x1f00
[  239.072850][ T6696]  ? gfs2_reconfigure+0xd30/0xd30
[  239.077954][ T6696]  ? sb_set_blocksize+0xa5/0xe0
[  239.082798][ T6696]  get_tree_bdev+0x3f1/0x610
[  239.087374][ T6696]  ? gfs2_reconfigure+0xd30/0xd30
[  239.092384][ T6696]  gfs2_get_tree+0x4d/0x1e0
[  239.096870][ T6696]  vfs_get_tree+0x88/0x270
[  239.101268][ T6696]  do_new_mount+0x24a/0xa40
[  239.106111][ T6696]  __se_sys_mount+0x2e3/0x3d0
[  239.110862][ T6696]  ? __x64_sys_mount+0xc0/0xc0
[  239.115611][ T6696]  ? lockdep_hardirqs_on+0x94/0x140
[  239.120791][ T6696]  ? __x64_sys_mount+0x1c/0xc0
[  239.125539][ T6696]  do_syscall_64+0x4c/0xa0
[  239.130065][ T6696]  ? clear_bhb_loop+0x30/0x80
[  239.134764][ T6696]  ? clear_bhb_loop+0x30/0x80
[  239.139449][ T6696]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  239.145442][ T6696] RIP: 0033:0x7f5a08da6b8a
[  239.149840][ T6696] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  239.169953][ T6696] RSP: 002b:00007f5a0800be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  239.178364][ T6696] RAX: ffffffffffffffda RBX: 00007f5a0800bee0 RCX: 00007f5a08da6b8a
[  239.186598][ T6696] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f5a0800bea0
[  239.194925][ T6696] RBP: 0000200000000400 R08: 00007f5a0800bee0 R09: 0000000000000000
[  239.202973][ T6696] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  239.211102][ T6696] R13: 00007f5a0800bea0 R14: 00000000000125bb R15: 00002000000004c0
[  239.219170][ T6696]  </TASK>
[  239.222376][ T6697] CPU: 0 PID: 6697 Comm: syz.3.460 Not tainted syzkaller #0
[  239.222433][ T6696] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  239.229733][ T6697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  239.229743][ T6697] Call Trace:
[  239.229748][ T6697]  <TASK>
[  239.229753][ T6697]  dump_stack_lvl+0x188/0x250
[  239.229775][ T6697]  ? show_regs_print_info+0x20/0x20
[  239.243025][ T6696] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  239.253224][ T6697]  ? load_image+0x400/0x400
[  239.253250][ T6697]  sysfs_create_dir_ns+0x26a/0x290
[  239.285861][ T6697]  ? sysfs_warn_dup+0xa0/0xa0
[  239.290545][ T6697]  ? do_raw_spin_unlock+0x11d/0x230
[  239.295762][ T6697]  kobject_add_internal+0x6e0/0xd90
[  239.301243][ T6697]  kobject_init_and_add+0x128/0x190
[  239.306815][ T6697]  ? lockdep_softirqs_off+0x430/0x430
[  239.312295][ T6697]  ? kobject_add+0x230/0x230
[  239.316903][ T6697]  ? __init_swait_queue_head+0xa5/0x150
[  239.322550][ T6697]  gfs2_sys_fs_add+0x24f/0x4b0
[  239.327326][ T6697]  ? gfs2_recover_set+0x240/0x240
[  239.332606][ T6697]  ? snprintf+0xe5/0x140
[  239.337079][ T6697]  ? __free_pages+0x95/0x1a0
[  239.339953][ T6681] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  239.341680][ T6697]  ? vscnprintf+0x80/0x80
[  239.353473][ T6697]  gfs2_fill_super+0x120f/0x1f00
[  239.358433][ T6697]  ? gfs2_reconfigure+0xd30/0xd30
[  239.363765][ T6697]  ? sb_set_blocksize+0xa5/0xe0
[  239.368627][ T6697]  get_tree_bdev+0x3f1/0x610
[  239.373226][ T6697]  ? gfs2_reconfigure+0xd30/0xd30
[  239.378358][ T6697]  gfs2_get_tree+0x4d/0x1e0
[  239.382881][ T6697]  vfs_get_tree+0x88/0x270
[  239.387304][ T6697]  do_new_mount+0x24a/0xa40
[  239.391928][ T6697]  __se_sys_mount+0x2e3/0x3d0
[  239.396802][ T6697]  ? __x64_sys_mount+0xc0/0xc0
[  239.402064][ T6697]  ? lockdep_hardirqs_on+0x94/0x140
[  239.407656][ T6697]  ? __x64_sys_mount+0x1c/0xc0
[  239.412488][ T6697]  do_syscall_64+0x4c/0xa0
[  239.416907][ T6697]  ? clear_bhb_loop+0x30/0x80
[  239.421673][ T6697]  ? clear_bhb_loop+0x30/0x80
[  239.426444][ T6697]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  239.432407][ T6697] RIP: 0033:0x7fb9901ccb8a
[  239.436841][ T6697] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  239.456714][ T6697] RSP: 002b:00007fb98f431e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  239.465287][ T6697] RAX: ffffffffffffffda RBX: 00007fb98f431ee0 RCX: 00007fb9901ccb8a
[  239.473653][ T6697] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fb98f431ea0
[  239.481719][ T6697] RBP: 0000200000000400 R08: 00007fb98f431ee0 R09: 0000000000000000
[  239.489741][ T6697] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  239.497715][ T6697] R13: 00007fb98f431ea0 R14: 00000000000125bb R15: 00002000000004c0
[  239.506231][ T6697]  </TASK>
[  239.510219][ T6697] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  239.523706][ T6697] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  239.549428][ T6681] CPU: 0 PID: 6681 Comm: syz.0.453 Not tainted syzkaller #0
[  239.556853][ T6681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  239.566924][ T6681] Call Trace:
[  239.570202][ T6681]  <TASK>
[  239.573123][ T6681]  dump_stack_lvl+0x188/0x250
[  239.577806][ T6681]  ? show_regs_print_info+0x20/0x20
[  239.583043][ T6681]  ? load_image+0x400/0x400
[  239.587558][ T6681]  sysfs_create_dir_ns+0x26a/0x290
[  239.592682][ T6681]  ? sysfs_warn_dup+0xa0/0xa0
[  239.597476][ T6681]  ? do_raw_spin_unlock+0x11d/0x230
[  239.602685][ T6681]  kobject_add_internal+0x6e0/0xd90
[  239.608113][ T6681]  kobject_init_and_add+0x128/0x190
[  239.613536][ T6681]  ? lockdep_softirqs_off+0x430/0x430
[  239.618926][ T6681]  ? kobject_add+0x230/0x230
[  239.623524][ T6681]  ? __init_swait_queue_head+0xa5/0x150
[  239.629081][ T6681]  gfs2_sys_fs_add+0x24f/0x4b0
[  239.633856][ T6681]  ? gfs2_recover_set+0x240/0x240
[  239.638888][ T6681]  ? snprintf+0xe5/0x140
[  239.643136][ T6681]  ? __free_pages+0x95/0x1a0
[  239.647724][ T6681]  ? vscnprintf+0x80/0x80
[  239.652267][ T6681]  gfs2_fill_super+0x120f/0x1f00
[  239.657392][ T6681]  ? gfs2_reconfigure+0xd30/0xd30
[  239.662924][ T6681]  ? sb_set_blocksize+0xa5/0xe0
[  239.667870][ T6681]  get_tree_bdev+0x3f1/0x610
[  239.672459][ T6681]  ? gfs2_reconfigure+0xd30/0xd30
[  239.677501][ T6681]  gfs2_get_tree+0x4d/0x1e0
[  239.682195][ T6681]  vfs_get_tree+0x88/0x270
[  239.686626][ T6681]  do_new_mount+0x24a/0xa40
[  239.691142][ T6681]  __se_sys_mount+0x2e3/0x3d0
[  239.695940][ T6681]  ? __x64_sys_mount+0xc0/0xc0
[  239.700733][ T6681]  ? lockdep_hardirqs_on+0x94/0x140
[  239.705952][ T6681]  ? __x64_sys_mount+0x1c/0xc0
[  239.710827][ T6681]  do_syscall_64+0x4c/0xa0
[  239.715422][ T6681]  ? clear_bhb_loop+0x30/0x80
[  239.720105][ T6681]  ? clear_bhb_loop+0x30/0x80
[  239.724790][ T6681]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  239.730694][ T6681] RIP: 0033:0x7f0c3ee8bb8a
[  239.735113][ T6681] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  239.755160][ T6681] RSP: 002b:00007f0c3e0cfe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  239.763662][ T6681] RAX: ffffffffffffffda RBX: 00007f0c3e0cfee0 RCX: 00007f0c3ee8bb8a
[  239.771648][ T6681] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f0c3e0cfea0
[  239.779621][ T6681] RBP: 0000200000000400 R08: 00007f0c3e0cfee0 R09: 0000000000000000
[  239.787839][ T6681] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  239.795903][ T6681] R13: 00007f0c3e0cfea0 R14: 00000000000125bb R15: 00002000000004c0
[  239.804430][ T6681]  </TASK>
[  240.025870][ T6681] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  240.039561][ T6681] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  240.581524][ T6693] loop4: detected capacity change from 0 to 32768
[  240.853507][ T6713] loop5: detected capacity change from 0 to 32768
[  240.928366][ T6709] loop1: detected capacity change from 0 to 32768
[  240.934064][ T6711] loop3: detected capacity change from 0 to 32768
[  240.940713][ T6713] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  240.948745][ T6713] CPU: 1 PID: 6713 Comm: syz.5.468 Not tainted syzkaller #0
[  240.956215][ T6713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  240.966273][ T6713] Call Trace:
[  240.969740][ T6713]  <TASK>
[  240.972676][ T6713]  dump_stack_lvl+0x188/0x250
[  240.977418][ T6713]  ? show_regs_print_info+0x20/0x20
[  240.982723][ T6713]  ? load_image+0x400/0x400
[  240.987344][ T6713]  sysfs_create_dir_ns+0x26a/0x290
[  240.992470][ T6713]  ? sysfs_warn_dup+0xa0/0xa0
[  240.997155][ T6713]  ? do_raw_spin_unlock+0x11d/0x230
[  241.002374][ T6713]  kobject_add_internal+0x6e0/0xd90
[  241.007588][ T6713]  kobject_init_and_add+0x128/0x190
[  241.012800][ T6713]  ? lockdep_softirqs_off+0x430/0x430
[  241.018179][ T6713]  ? kobject_add+0x230/0x230
[  241.022819][ T6693] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  241.023050][ T6713]  ? __init_swait_queue_head+0xa5/0x150
[  241.035976][ T6713]  gfs2_sys_fs_add+0x24f/0x4b0
[  241.041007][ T6713]  ? gfs2_recover_set+0x240/0x240
[  241.046044][ T6713]  ? snprintf+0xe5/0x140
[  241.050298][ T6713]  ? __free_pages+0x95/0x1a0
[  241.054891][ T6713]  ? vscnprintf+0x80/0x80
[  241.059262][ T6713]  gfs2_fill_super+0x120f/0x1f00
[  241.064209][ T6713]  ? gfs2_reconfigure+0xd30/0xd30
[  241.069243][ T6713]  ? sb_set_blocksize+0xa5/0xe0
[  241.074084][ T6713]  get_tree_bdev+0x3f1/0x610
[  241.078756][ T6713]  ? gfs2_reconfigure+0xd30/0xd30
[  241.083778][ T6713]  gfs2_get_tree+0x4d/0x1e0
[  241.088398][ T6713]  vfs_get_tree+0x88/0x270
[  241.092904][ T6713]  do_new_mount+0x24a/0xa40
[  241.097502][ T6713]  __se_sys_mount+0x2e3/0x3d0
[  241.102171][ T6713]  ? __x64_sys_mount+0xc0/0xc0
[  241.106918][ T6713]  ? lockdep_hardirqs_on+0x94/0x140
[  241.112344][ T6713]  ? __x64_sys_mount+0x1c/0xc0
[  241.117121][ T6713]  do_syscall_64+0x4c/0xa0
[  241.121544][ T6713]  ? clear_bhb_loop+0x30/0x80
[  241.126222][ T6713]  ? clear_bhb_loop+0x30/0x80
[  241.131288][ T6713]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  241.137492][ T6713] RIP: 0033:0x7f44b1b26b8a
[  241.142101][ T6713] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  241.162513][ T6713] RSP: 002b:00007f44b0d8be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  241.170934][ T6713] RAX: ffffffffffffffda RBX: 00007f44b0d8bee0 RCX: 00007f44b1b26b8a
[  241.178961][ T6713] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f44b0d8bea0
[  241.187022][ T6713] RBP: 0000200000000400 R08: 00007f44b0d8bee0 R09: 0000000000000000
[  241.195156][ T6713] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  241.203135][ T6713] R13: 00007f44b0d8bea0 R14: 00000000000125bb R15: 00002000000004c0
[  241.211215][ T6713]  </TASK>
[  241.215118][ T6713] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  241.215832][ T6693] CPU: 0 PID: 6693 Comm: syz.4.458 Not tainted syzkaller #0
[  241.228561][ T6713] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  241.235714][ T6693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  241.235724][ T6693] Call Trace:
[  241.235731][ T6693]  <TASK>
[  241.235737][ T6693]  dump_stack_lvl+0x188/0x250
[  241.263681][ T6693]  ? show_regs_print_info+0x20/0x20
[  241.268888][ T6693]  ? load_image+0x400/0x400
[  241.273587][ T6693]  sysfs_create_dir_ns+0x26a/0x290
[  241.278834][ T6693]  ? sysfs_warn_dup+0xa0/0xa0
[  241.283877][ T6693]  ? do_raw_spin_unlock+0x11d/0x230
[  241.289611][ T6693]  kobject_add_internal+0x6e0/0xd90
[  241.294915][ T6693]  kobject_init_and_add+0x128/0x190
[  241.300126][ T6693]  ? lockdep_softirqs_off+0x430/0x430
[  241.305605][ T6693]  ? kobject_add+0x230/0x230
[  241.310215][ T6693]  ? __init_swait_queue_head+0xa5/0x150
[  241.316021][ T6693]  gfs2_sys_fs_add+0x24f/0x4b0
[  241.320828][ T6693]  ? gfs2_recover_set+0x240/0x240
[  241.325876][ T6693]  ? snprintf+0xe5/0x140
[  241.330135][ T6693]  ? __free_pages+0x95/0x1a0
[  241.334822][ T6693]  ? vscnprintf+0x80/0x80
[  241.339242][ T6693]  gfs2_fill_super+0x120f/0x1f00
[  241.344275][ T6693]  ? gfs2_reconfigure+0xd30/0xd30
[  241.349397][ T6693]  ? sb_set_blocksize+0xa5/0xe0
[  241.354261][ T6693]  get_tree_bdev+0x3f1/0x610
[  241.358944][ T6693]  ? gfs2_reconfigure+0xd30/0xd30
[  241.363978][ T6693]  gfs2_get_tree+0x4d/0x1e0
[  241.368491][ T6693]  vfs_get_tree+0x88/0x270
[  241.372948][ T6693]  do_new_mount+0x24a/0xa40
[  241.377467][ T6693]  __se_sys_mount+0x2e3/0x3d0
[  241.382237][ T6693]  ? __x64_sys_mount+0xc0/0xc0
[  241.387009][ T6693]  ? lockdep_hardirqs_on+0x94/0x140
[  241.392222][ T6693]  ? __x64_sys_mount+0x1c/0xc0
[  241.397009][ T6693]  do_syscall_64+0x4c/0xa0
[  241.401433][ T6693]  ? clear_bhb_loop+0x30/0x80
[  241.406214][ T6693]  ? clear_bhb_loop+0x30/0x80
[  241.410901][ T6693]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  241.416807][ T6693] RIP: 0033:0x7fee58e0cb8a
[  241.421240][ T6693] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  241.440929][ T6693] RSP: 002b:00007fee5802fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  241.449436][ T6693] RAX: ffffffffffffffda RBX: 00007fee5802fee0 RCX: 00007fee58e0cb8a
[  241.457502][ T6693] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fee5802fea0
[  241.465479][ T6693] RBP: 0000200000000400 R08: 00007fee5802fee0 R09: 0000000000000000
[  241.473462][ T6693] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  241.481706][ T6693] R13: 00007fee5802fea0 R14: 00000000000125bb R15: 00002000000004c0
[  241.490001][ T6693]  </TASK>
[  241.517046][ T6711] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  241.520238][ T6693] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  241.524568][ T6711] CPU: 0 PID: 6711 Comm: syz.3.467 Not tainted syzkaller #0
[  241.524588][ T6711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  241.524597][ T6711] Call Trace:
[  241.524603][ T6711]  <TASK>
[  241.524609][ T6711]  dump_stack_lvl+0x188/0x250
[  241.537829][ T6693] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  241.545000][ T6711]  ? show_regs_print_info+0x20/0x20
[  241.545022][ T6711]  ? load_image+0x400/0x400
[  241.545042][ T6711]  sysfs_create_dir_ns+0x26a/0x290
[  241.545058][ T6711]  ? sysfs_warn_dup+0xa0/0xa0
[  241.592122][ T6711]  ? do_raw_spin_unlock+0x11d/0x230
[  241.597338][ T6711]  kobject_add_internal+0x6e0/0xd90
[  241.602556][ T6711]  kobject_init_and_add+0x128/0x190
[  241.607870][ T6711]  ? lockdep_softirqs_off+0x430/0x430
[  241.613363][ T6711]  ? kobject_add+0x230/0x230
[  241.618058][ T6711]  ? __init_swait_queue_head+0xa5/0x150
[  241.623798][ T6711]  gfs2_sys_fs_add+0x24f/0x4b0
[  241.629099][ T6711]  ? gfs2_recover_set+0x240/0x240
[  241.634324][ T6711]  ? snprintf+0xe5/0x140
[  241.638615][ T6711]  ? __free_pages+0x95/0x1a0
[  241.643224][ T6711]  ? vscnprintf+0x80/0x80
[  241.647650][ T6711]  gfs2_fill_super+0x120f/0x1f00
[  241.652607][ T6711]  ? gfs2_reconfigure+0xd30/0xd30
[  241.657747][ T6711]  ? sb_set_blocksize+0xa5/0xe0
[  241.663088][ T6711]  get_tree_bdev+0x3f1/0x610
[  241.667695][ T6711]  ? gfs2_reconfigure+0xd30/0xd30
[  241.672744][ T6711]  gfs2_get_tree+0x4d/0x1e0
[  241.677365][ T6711]  vfs_get_tree+0x88/0x270
[  241.681802][ T6711]  do_new_mount+0x24a/0xa40
[  241.686407][ T6711]  __se_sys_mount+0x2e3/0x3d0
[  241.691098][ T6711]  ? __x64_sys_mount+0xc0/0xc0
[  241.695976][ T6711]  ? lockdep_hardirqs_on+0x94/0x140
[  241.701190][ T6711]  ? __x64_sys_mount+0x1c/0xc0
[  241.706070][ T6711]  do_syscall_64+0x4c/0xa0
[  241.710504][ T6711]  ? clear_bhb_loop+0x30/0x80
[  241.715294][ T6711]  ? clear_bhb_loop+0x30/0x80
[  241.719985][ T6711]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  241.725914][ T6711] RIP: 0033:0x7fb9901ccb8a
[  241.730550][ T6711] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  241.750688][ T6711] RSP: 002b:00007fb98f431e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  241.759226][ T6711] RAX: ffffffffffffffda RBX: 00007fb98f431ee0 RCX: 00007fb9901ccb8a
[  241.767326][ T6711] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fb98f431ea0
[  241.775387][ T6711] RBP: 0000200000000400 R08: 00007fb98f431ee0 R09: 0000000000000000
[  241.783474][ T6711] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  241.791450][ T6711] R13: 00007fb98f431ea0 R14: 00000000000125bb R15: 00002000000004c0
[  241.799518][ T6711]  </TASK>
[  241.802634][ T6711] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  241.815752][ T6711] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  241.838473][ T6709] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  241.846209][ T6709] CPU: 0 PID: 6709 Comm: syz.1.466 Not tainted syzkaller #0
[  241.853680][ T6709] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  241.863825][ T6709] Call Trace:
[  241.867105][ T6709]  <TASK>
[  241.870033][ T6709]  dump_stack_lvl+0x188/0x250
[  241.874715][ T6709]  ? show_regs_print_info+0x20/0x20
[  241.879941][ T6709]  ? load_image+0x400/0x400
[  241.884457][ T6709]  sysfs_create_dir_ns+0x26a/0x290
[  241.889834][ T6709]  ? sysfs_warn_dup+0xa0/0xa0
[  241.894517][ T6709]  ? do_raw_spin_unlock+0x11d/0x230
[  241.899720][ T6709]  kobject_add_internal+0x6e0/0xd90
[  241.905020][ T6709]  kobject_init_and_add+0x128/0x190
[  241.910222][ T6709]  ? lockdep_softirqs_off+0x430/0x430
[  241.916038][ T6709]  ? kobject_add+0x230/0x230
[  241.920923][ T6709]  ? __init_swait_queue_head+0xa5/0x150
[  241.926479][ T6709]  gfs2_sys_fs_add+0x24f/0x4b0
[  241.931251][ T6709]  ? gfs2_recover_set+0x240/0x240
[  241.936291][ T6709]  ? snprintf+0xe5/0x140
[  241.940535][ T6709]  ? __free_pages+0x95/0x1a0
[  241.945129][ T6709]  ? vscnprintf+0x80/0x80
[  241.949473][ T6709]  gfs2_fill_super+0x120f/0x1f00
[  241.954426][ T6709]  ? gfs2_reconfigure+0xd30/0xd30
[  241.959680][ T6709]  ? sb_set_blocksize+0xa5/0xe0
[  241.964535][ T6709]  get_tree_bdev+0x3f1/0x610
[  241.969133][ T6709]  ? gfs2_reconfigure+0xd30/0xd30
[  241.974176][ T6709]  gfs2_get_tree+0x4d/0x1e0
[  241.978687][ T6709]  vfs_get_tree+0x88/0x270
[  241.983107][ T6709]  do_new_mount+0x24a/0xa40
[  241.987613][ T6709]  __se_sys_mount+0x2e3/0x3d0
[  241.992382][ T6709]  ? __x64_sys_mount+0xc0/0xc0
[  241.997299][ T6709]  ? lockdep_hardirqs_on+0x94/0x140
[  242.002793][ T6709]  ? __x64_sys_mount+0x1c/0xc0
[  242.007696][ T6709]  do_syscall_64+0x4c/0xa0
[  242.012119][ T6709]  ? clear_bhb_loop+0x30/0x80
[  242.016883][ T6709]  ? clear_bhb_loop+0x30/0x80
[  242.021646][ T6709]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  242.027549][ T6709] RIP: 0033:0x7f5a08da6b8a
[  242.032000][ T6709] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  242.051915][ T6709] RSP: 002b:00007f5a0800be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  242.060349][ T6709] RAX: ffffffffffffffda RBX: 00007f5a0800bee0 RCX: 00007f5a08da6b8a
[  242.068332][ T6709] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f5a0800bea0
[  242.076464][ T6709] RBP: 0000200000000400 R08: 00007f5a0800bee0 R09: 0000000000000000
[  242.084445][ T6709] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  242.092435][ T6709] R13: 00007f5a0800bea0 R14: 00000000000125bb R15: 00002000000004c0
[  242.100432][ T6709]  </TASK>
[  242.103502][ T6709] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  242.116728][ T6709] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/05/09 17:50:06 executed programs: 470
[  242.506062][ T6726] loop4: detected capacity change from 0 to 32768
[  242.542046][ T6724] loop5: detected capacity change from 0 to 32768
[  242.731601][ T6728] loop3: detected capacity change from 0 to 32768
[  242.777627][ T6730] loop1: detected capacity change from 0 to 32768
[  242.811844][ T6728] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  242.819569][ T6728] CPU: 1 PID: 6728 Comm: syz.3.475 Not tainted syzkaller #0
[  242.826972][ T6728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  242.837125][ T6728] Call Trace:
[  242.840411][ T6728]  <TASK>
[  242.843349][ T6728]  dump_stack_lvl+0x188/0x250
[  242.848050][ T6728]  ? show_regs_print_info+0x20/0x20
[  242.853265][ T6728]  ? load_image+0x400/0x400
[  242.858037][ T6728]  sysfs_create_dir_ns+0x26a/0x290
[  242.863383][ T6728]  ? sysfs_warn_dup+0xa0/0xa0
[  242.868334][ T6728]  ? do_raw_spin_unlock+0x11d/0x230
[  242.873728][ T6728]  kobject_add_internal+0x6e0/0xd90
[  242.879053][ T6728]  kobject_init_and_add+0x128/0x190
[  242.884268][ T6728]  ? lockdep_softirqs_off+0x430/0x430
[  242.889877][ T6728]  ? kobject_add+0x230/0x230
[  242.894511][ T6728]  ? __init_swait_queue_head+0xa5/0x150
[  242.900495][ T6728]  gfs2_sys_fs_add+0x24f/0x4b0
[  242.905516][ T6728]  ? gfs2_recover_set+0x240/0x240
[  242.910698][ T6728]  ? snprintf+0xe5/0x140
[  242.914959][ T6728]  ? __free_pages+0x95/0x1a0
[  242.919574][ T6728]  ? vscnprintf+0x80/0x80
[  242.923915][ T6728]  gfs2_fill_super+0x120f/0x1f00
[  242.928867][ T6728]  ? gfs2_reconfigure+0xd30/0xd30
[  242.934000][ T6728]  ? sb_set_blocksize+0xa5/0xe0
[  242.938856][ T6728]  get_tree_bdev+0x3f1/0x610
[  242.943465][ T6728]  ? gfs2_reconfigure+0xd30/0xd30
[  242.945389][ T6726] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  242.948494][ T6728]  gfs2_get_tree+0x4d/0x1e0
[  242.960550][ T6728]  vfs_get_tree+0x88/0x270
[  242.964955][ T6728]  do_new_mount+0x24a/0xa40
[  242.969453][ T6728]  __se_sys_mount+0x2e3/0x3d0
[  242.974146][ T6728]  ? __x64_sys_mount+0xc0/0xc0
[  242.978895][ T6728]  ? lockdep_hardirqs_on+0x94/0x140
[  242.984199][ T6728]  ? __x64_sys_mount+0x1c/0xc0
[  242.989089][ T6728]  do_syscall_64+0x4c/0xa0
[  242.994435][ T6728]  ? clear_bhb_loop+0x30/0x80
[  242.999503][ T6728]  ? clear_bhb_loop+0x30/0x80
[  243.004369][ T6728]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  243.011417][ T6728] RIP: 0033:0x7fb9901ccb8a
[  243.017097][ T6728] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  243.033475][ T6724] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  243.037058][ T6728] RSP: 002b:00007fb98f431e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  243.052890][ T6728] RAX: ffffffffffffffda RBX: 00007fb98f431ee0 RCX: 00007fb9901ccb8a
[  243.060882][ T6728] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fb98f431ea0
[  243.068925][ T6728] RBP: 0000200000000400 R08: 00007fb98f431ee0 R09: 0000000000000000
[  243.076892][ T6728] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  243.084870][ T6728] R13: 00007fb98f431ea0 R14: 00000000000125bb R15: 00002000000004c0
[  243.093067][ T6728]  </TASK>
[  243.096306][ T6724] CPU: 0 PID: 6724 Comm: syz.5.473 Not tainted syzkaller #0
[  243.097553][ T6728] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  243.104216][ T6724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  243.104229][ T6724] Call Trace:
[  243.104235][ T6724]  <TASK>
[  243.104240][ T6724]  dump_stack_lvl+0x188/0x250
[  243.104261][ T6724]  ? show_regs_print_info+0x20/0x20
[  243.118014][ T6728] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  243.128961][ T6724]  ? load_image+0x400/0x400
[  243.128994][ T6724]  sysfs_create_dir_ns+0x26a/0x290
[  243.129012][ T6724]  ? sysfs_warn_dup+0xa0/0xa0
[  243.129026][ T6724]  ? do_raw_spin_unlock+0x11d/0x230
[  243.171442][ T6724]  kobject_add_internal+0x6e0/0xd90
[  243.176739][ T6724]  kobject_init_and_add+0x128/0x190
[  243.181931][ T6724]  ? lockdep_softirqs_off+0x430/0x430
[  243.187381][ T6724]  ? kobject_add+0x230/0x230
[  243.191955][ T6724]  ? __init_swait_queue_head+0xa5/0x150
[  243.197685][ T6724]  gfs2_sys_fs_add+0x24f/0x4b0
[  243.202452][ T6724]  ? gfs2_recover_set+0x240/0x240
[  243.207459][ T6724]  ? snprintf+0xe5/0x140
[  243.211732][ T6724]  ? __free_pages+0x95/0x1a0
[  243.216305][ T6724]  ? vscnprintf+0x80/0x80
[  243.220618][ T6724]  gfs2_fill_super+0x120f/0x1f00
[  243.225629][ T6724]  ? gfs2_reconfigure+0xd30/0xd30
[  243.231509][ T6724]  ? sb_set_blocksize+0xa5/0xe0
[  243.236364][ T6724]  get_tree_bdev+0x3f1/0x610
[  243.240954][ T6724]  ? gfs2_reconfigure+0xd30/0xd30
[  243.246623][ T6724]  gfs2_get_tree+0x4d/0x1e0
[  243.251128][ T6724]  vfs_get_tree+0x88/0x270
[  243.255637][ T6724]  do_new_mount+0x24a/0xa40
[  243.260229][ T6724]  __se_sys_mount+0x2e3/0x3d0
[  243.264971][ T6724]  ? __x64_sys_mount+0xc0/0xc0
[  243.269896][ T6724]  ? lockdep_hardirqs_on+0x94/0x140
[  243.275084][ T6724]  ? __x64_sys_mount+0x1c/0xc0
[  243.279827][ T6724]  do_syscall_64+0x4c/0xa0
[  243.284220][ T6724]  ? clear_bhb_loop+0x30/0x80
[  243.288898][ T6724]  ? clear_bhb_loop+0x30/0x80
[  243.293637][ T6724]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  243.299513][ T6724] RIP: 0033:0x7f44b1b26b8a
[  243.303938][ T6724] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  243.324020][ T6724] RSP: 002b:00007f44b0d8be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  243.332785][ T6724] RAX: ffffffffffffffda RBX: 00007f44b0d8bee0 RCX: 00007f44b1b26b8a
[  243.342294][ T6724] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f44b0d8bea0
[  243.350889][ T6724] RBP: 0000200000000400 R08: 00007f44b0d8bee0 R09: 0000000000000000
[  243.358871][ T6724] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  243.367021][ T6724] R13: 00007f44b0d8bea0 R14: 00000000000125bb R15: 00002000000004c0
[  243.375169][ T6724]  </TASK>
[  243.378265][ T6726] CPU: 1 PID: 6726 Comm: syz.4.474 Not tainted syzkaller #0
[  243.380035][ T6724] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  243.385880][ T6726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  243.385895][ T6726] Call Trace:
[  243.385902][ T6726]  <TASK>
[  243.385908][ T6726]  dump_stack_lvl+0x188/0x250
[  243.385932][ T6726]  ? show_regs_print_info+0x20/0x20
[  243.400007][ T6724] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  243.409055][ T6726]  ? load_image+0x400/0x400
[  243.409082][ T6726]  sysfs_create_dir_ns+0x26a/0x290
[  243.409099][ T6726]  ? sysfs_warn_dup+0xa0/0xa0
[  243.409113][ T6726]  ? do_raw_spin_unlock+0x11d/0x230
[  243.432467][ T6730] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  243.436233][ T6726]  kobject_add_internal+0x6e0/0xd90
[  243.436261][ T6726]  kobject_init_and_add+0x128/0x190
[  243.469067][ T6726]  ? lockdep_softirqs_off+0x430/0x430
[  243.474536][ T6726]  ? kobject_add+0x230/0x230
[  243.479217][ T6726]  ? __init_swait_queue_head+0xa5/0x150
[  243.484838][ T6726]  gfs2_sys_fs_add+0x24f/0x4b0
[  243.489583][ T6726]  ? gfs2_recover_set+0x240/0x240
[  243.494588][ T6726]  ? snprintf+0xe5/0x140
[  243.498814][ T6726]  ? __free_pages+0x95/0x1a0
[  243.503391][ T6726]  ? vscnprintf+0x80/0x80
[  243.507713][ T6726]  gfs2_fill_super+0x120f/0x1f00
[  243.512642][ T6726]  ? gfs2_reconfigure+0xd30/0xd30
[  243.517664][ T6726]  ? sb_set_blocksize+0xa5/0xe0
[  243.522600][ T6726]  get_tree_bdev+0x3f1/0x610
[  243.527265][ T6726]  ? gfs2_reconfigure+0xd30/0xd30
[  243.532280][ T6726]  gfs2_get_tree+0x4d/0x1e0
[  243.536779][ T6726]  vfs_get_tree+0x88/0x270
[  243.541394][ T6726]  do_new_mount+0x24a/0xa40
[  243.545883][ T6726]  __se_sys_mount+0x2e3/0x3d0
[  243.550541][ T6726]  ? __x64_sys_mount+0xc0/0xc0
[  243.555298][ T6726]  ? lockdep_hardirqs_on+0x94/0x140
[  243.560480][ T6726]  ? __x64_sys_mount+0x1c/0xc0
[  243.565319][ T6726]  do_syscall_64+0x4c/0xa0
[  243.569720][ T6726]  ? clear_bhb_loop+0x30/0x80
[  243.575044][ T6726]  ? clear_bhb_loop+0x30/0x80
[  243.579965][ T6726]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  243.585846][ T6726] RIP: 0033:0x7fee58e0cb8a
[  243.590426][ T6726] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  243.611080][ T6726] RSP: 002b:00007fee58071e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  243.619625][ T6726] RAX: ffffffffffffffda RBX: 00007fee58071ee0 RCX: 00007fee58e0cb8a
[  243.628390][ T6726] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fee58071ea0
[  243.636440][ T6726] RBP: 0000200000000400 R08: 00007fee58071ee0 R09: 0000000000000000
[  243.644491][ T6726] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  243.652882][ T6726] R13: 00007fee58071ea0 R14: 00000000000125bb R15: 00002000000004c0
[  243.661942][ T6726]  </TASK>
[  243.665057][ T6730] CPU: 0 PID: 6730 Comm: syz.1.476 Not tainted syzkaller #0
[  243.665139][ T6726] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  243.672436][ T6730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  243.685614][ T6726] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  243.695740][ T6730] Call Trace:
[  243.695756][ T6730]  <TASK>
[  243.695764][ T6730]  dump_stack_lvl+0x188/0x250
[  243.695785][ T6730]  ? show_regs_print_info+0x20/0x20
[  243.695798][ T6730]  ? load_image+0x400/0x400
[  243.722983][ T6730]  sysfs_create_dir_ns+0x26a/0x290
[  243.728220][ T6730]  ? sysfs_warn_dup+0xa0/0xa0
[  243.732906][ T6730]  ? do_raw_spin_unlock+0x11d/0x230
[  243.738258][ T6730]  kobject_add_internal+0x6e0/0xd90
[  243.743662][ T6730]  kobject_init_and_add+0x128/0x190
[  243.748987][ T6730]  ? lockdep_softirqs_off+0x430/0x430
[  243.754379][ T6730]  ? kobject_add+0x230/0x230
[  243.758977][ T6730]  ? __init_swait_queue_head+0xa5/0x150
[  243.764537][ T6730]  gfs2_sys_fs_add+0x24f/0x4b0
[  243.769408][ T6730]  ? gfs2_recover_set+0x240/0x240
[  243.774531][ T6730]  ? snprintf+0xe5/0x140
[  243.780079][ T6730]  ? __free_pages+0x95/0x1a0
[  243.785030][ T6730]  ? vscnprintf+0x80/0x80
[  243.789366][ T6730]  gfs2_fill_super+0x120f/0x1f00
[  243.794551][ T6730]  ? gfs2_reconfigure+0xd30/0xd30
[  243.799795][ T6730]  ? sb_set_blocksize+0xa5/0xe0
[  243.804738][ T6730]  get_tree_bdev+0x3f1/0x610
[  243.809344][ T6730]  ? gfs2_reconfigure+0xd30/0xd30
[  243.814473][ T6730]  gfs2_get_tree+0x4d/0x1e0
[  243.819074][ T6730]  vfs_get_tree+0x88/0x270
[  243.823502][ T6730]  do_new_mount+0x24a/0xa40
[  243.828024][ T6730]  __se_sys_mount+0x2e3/0x3d0
[  243.832732][ T6730]  ? __x64_sys_mount+0xc0/0xc0
[  243.837598][ T6730]  ? lockdep_hardirqs_on+0x94/0x140
[  243.842979][ T6730]  ? __x64_sys_mount+0x1c/0xc0
[  243.847869][ T6730]  do_syscall_64+0x4c/0xa0
[  243.852391][ T6730]  ? clear_bhb_loop+0x30/0x80
[  243.857075][ T6730]  ? clear_bhb_loop+0x30/0x80
[  243.861951][ T6730]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  243.867956][ T6730] RIP: 0033:0x7f5a08da6b8a
[  243.872555][ T6730] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  243.892769][ T6730] RSP: 002b:00007f5a0800be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  243.901751][ T6730] RAX: ffffffffffffffda RBX: 00007f5a0800bee0 RCX: 00007f5a08da6b8a
[  243.909983][ T6730] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f5a0800bea0
[  243.918134][ T6730] RBP: 0000200000000400 R08: 00007f5a0800bee0 R09: 0000000000000000
[  243.926114][ T6730] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  243.934258][ T6730] R13: 00007f5a0800bea0 R14: 00000000000125bb R15: 00002000000004c0
[  243.942334][ T6730]  </TASK>
[  243.946033][ T6730] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  243.959875][ T6730] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  244.030716][ T6715] loop0: detected capacity change from 0 to 32768
[  244.399324][ T6732] loop3: detected capacity change from 0 to 32768
[  244.547252][ T6738] loop4: detected capacity change from 0 to 32768
[  244.662044][ T6732] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  244.669510][ T6732] CPU: 1 PID: 6732 Comm: syz.3.477 Not tainted syzkaller #0
[  244.676820][ T6732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  244.686964][ T6732] Call Trace:
[  244.690245][ T6732]  <TASK>
[  244.693260][ T6732]  dump_stack_lvl+0x188/0x250
[  244.694861][ T6738] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  244.697936][ T6732]  ? show_regs_print_info+0x20/0x20
[  244.710555][ T6732]  ? load_image+0x400/0x400
[  244.715171][ T6732]  sysfs_create_dir_ns+0x26a/0x290
[  244.720298][ T6732]  ? sysfs_warn_dup+0xa0/0xa0
[  244.725075][ T6732]  ? do_raw_spin_unlock+0x11d/0x230
[  244.730444][ T6732]  kobject_add_internal+0x6e0/0xd90
[  244.735629][ T6732]  kobject_init_and_add+0x128/0x190
[  244.740830][ T6732]  ? lockdep_softirqs_off+0x430/0x430
[  244.746211][ T6732]  ? kobject_add+0x230/0x230
[  244.750880][ T6732]  ? __init_swait_queue_head+0xa5/0x150
[  244.756411][ T6732]  gfs2_sys_fs_add+0x24f/0x4b0
[  244.761353][ T6732]  ? gfs2_recover_set+0x240/0x240
[  244.766465][ T6732]  ? snprintf+0xe5/0x140
[  244.770701][ T6732]  ? __free_pages+0x95/0x1a0
[  244.775291][ T6732]  ? vscnprintf+0x80/0x80
[  244.779968][ T6732]  gfs2_fill_super+0x120f/0x1f00
[  244.784909][ T6732]  ? gfs2_reconfigure+0xd30/0xd30
[  244.789935][ T6732]  ? sb_set_blocksize+0xa5/0xe0
[  244.794944][ T6732]  get_tree_bdev+0x3f1/0x610
[  244.799521][ T6732]  ? gfs2_reconfigure+0xd30/0xd30
[  244.804533][ T6732]  gfs2_get_tree+0x4d/0x1e0
[  244.809033][ T6732]  vfs_get_tree+0x88/0x270
[  244.813722][ T6732]  do_new_mount+0x24a/0xa40
[  244.818229][ T6732]  __se_sys_mount+0x2e3/0x3d0
[  244.822893][ T6732]  ? __x64_sys_mount+0xc0/0xc0
[  244.827733][ T6732]  ? lockdep_hardirqs_on+0x94/0x140
[  244.832999][ T6732]  ? __x64_sys_mount+0x1c/0xc0
[  244.837751][ T6732]  do_syscall_64+0x4c/0xa0
[  244.842154][ T6732]  ? clear_bhb_loop+0x30/0x80
[  244.846907][ T6732]  ? clear_bhb_loop+0x30/0x80
[  244.851570][ T6732]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  244.857446][ T6732] RIP: 0033:0x7fb9901ccb8a
[  244.861933][ T6732] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  244.881704][ T6732] RSP: 002b:00007fb98f431e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  244.890313][ T6732] RAX: ffffffffffffffda RBX: 00007fb98f431ee0 RCX: 00007fb9901ccb8a
[  244.898291][ T6732] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fb98f431ea0
[  244.906610][ T6732] RBP: 0000200000000400 R08: 00007fb98f431ee0 R09: 0000000000000000
[  244.914592][ T6732] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  244.922574][ T6732] R13: 00007fb98f431ea0 R14: 00000000000125bb R15: 00002000000004c0
[  244.930567][ T6732]  </TASK>
[  244.933708][ T6738] CPU: 0 PID: 6738 Comm: syz.4.480 Not tainted syzkaller #0
[  244.933725][ T6732] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  244.933738][ T6732] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  244.941000][ T6738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  244.970830][ T6738] Call Trace:
[  244.974145][ T6738]  <TASK>
[  244.977070][ T6738]  dump_stack_lvl+0x188/0x250
[  244.981747][ T6738]  ? show_regs_print_info+0x20/0x20
[  244.987308][ T6738]  ? load_image+0x400/0x400
[  244.991932][ T6738]  sysfs_create_dir_ns+0x26a/0x290
[  244.997061][ T6738]  ? sysfs_warn_dup+0xa0/0xa0
[  245.001851][ T6738]  ? do_raw_spin_unlock+0x11d/0x230
[  245.007065][ T6738]  kobject_add_internal+0x6e0/0xd90
[  245.012288][ T6738]  kobject_init_and_add+0x128/0x190
[  245.017495][ T6738]  ? lockdep_softirqs_off+0x430/0x430
[  245.023326][ T6738]  ? kobject_add+0x230/0x230
[  245.027934][ T6738]  ? __init_swait_queue_head+0xa5/0x150
[  245.034083][ T6738]  gfs2_sys_fs_add+0x24f/0x4b0
[  245.038961][ T6738]  ? gfs2_recover_set+0x240/0x240
[  245.044095][ T6738]  ? snprintf+0xe5/0x140
[  245.048431][ T6738]  ? __free_pages+0x95/0x1a0
[  245.053120][ T6738]  ? vscnprintf+0x80/0x80
[  245.057489][ T6738]  gfs2_fill_super+0x120f/0x1f00
[  245.062712][ T6738]  ? gfs2_reconfigure+0xd30/0xd30
[  245.067831][ T6738]  ? sb_set_blocksize+0xa5/0xe0
[  245.072766][ T6738]  get_tree_bdev+0x3f1/0x610
[  245.077393][ T6738]  ? gfs2_reconfigure+0xd30/0xd30
[  245.082436][ T6738]  gfs2_get_tree+0x4d/0x1e0
[  245.086961][ T6738]  vfs_get_tree+0x88/0x270
[  245.091394][ T6738]  do_new_mount+0x24a/0xa40
[  245.095996][ T6738]  __se_sys_mount+0x2e3/0x3d0
[  245.100765][ T6738]  ? __x64_sys_mount+0xc0/0xc0
[  245.105627][ T6738]  ? lockdep_hardirqs_on+0x94/0x140
[  245.111468][ T6738]  ? __x64_sys_mount+0x1c/0xc0
[  245.116330][ T6738]  do_syscall_64+0x4c/0xa0
[  245.121038][ T6738]  ? clear_bhb_loop+0x30/0x80
[  245.126267][ T6738]  ? clear_bhb_loop+0x30/0x80
[  245.131044][ T6738]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  245.136948][ T6738] RIP: 0033:0x7fee58e0cb8a
[  245.141892][ T6738] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  245.162044][ T6738] RSP: 002b:00007fee58071e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  245.170828][ T6738] RAX: ffffffffffffffda RBX: 00007fee58071ee0 RCX: 00007fee58e0cb8a
[  245.178904][ T6738] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fee58071ea0
[  245.186986][ T6738] RBP: 0000200000000400 R08: 00007fee58071ee0 R09: 0000000000000000
[  245.195349][ T6738] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  245.203499][ T6738] R13: 00007fee58071ea0 R14: 00000000000125bb R15: 00002000000004c0
[  245.211716][ T6738]  </TASK>
[  245.215552][ T6738] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  245.228978][ T6738] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  245.258069][ T6742] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  245.265741][ T6742] CPU: 1 PID: 6742 Comm: syz.1.481 Not tainted syzkaller #0
[  245.273120][ T6742] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  245.283163][ T6742] Call Trace:
[  245.286435][ T6742]  <TASK>
[  245.289541][ T6742]  dump_stack_lvl+0x188/0x250
[  245.294299][ T6742]  ? show_regs_print_info+0x20/0x20
[  245.299554][ T6742]  ? load_image+0x400/0x400
[  245.304056][ T6742]  sysfs_create_dir_ns+0x26a/0x290
[  245.309246][ T6742]  ? sysfs_warn_dup+0xa0/0xa0
[  245.313927][ T6742]  ? do_raw_spin_unlock+0x11d/0x230
[  245.319152][ T6742]  kobject_add_internal+0x6e0/0xd90
[  245.324601][ T6742]  kobject_init_and_add+0x128/0x190
[  245.329801][ T6742]  ? lockdep_softirqs_off+0x430/0x430
[  245.335158][ T6742]  ? kobject_add+0x230/0x230
[  245.339730][ T6742]  ? __init_swait_queue_head+0xa5/0x150
[  245.345276][ T6742]  gfs2_sys_fs_add+0x24f/0x4b0
[  245.350037][ T6742]  ? gfs2_recover_set+0x240/0x240
[  245.355138][ T6742]  ? snprintf+0xe5/0x140
[  245.359356][ T6742]  ? __free_pages+0x95/0x1a0
[  245.363936][ T6742]  ? vscnprintf+0x80/0x80
[  245.368257][ T6742]  gfs2_fill_super+0x120f/0x1f00
[  245.373183][ T6742]  ? gfs2_reconfigure+0xd30/0xd30
[  245.378291][ T6742]  ? sb_set_blocksize+0xa5/0xe0
[  245.383140][ T6742]  get_tree_bdev+0x3f1/0x610
[  245.387723][ T6742]  ? gfs2_reconfigure+0xd30/0xd30
[  245.392746][ T6742]  gfs2_get_tree+0x4d/0x1e0
[  245.397242][ T6742]  vfs_get_tree+0x88/0x270
[  245.401790][ T6742]  do_new_mount+0x24a/0xa40
[  245.406467][ T6742]  __se_sys_mount+0x2e3/0x3d0
[  245.411158][ T6742]  ? __x64_sys_mount+0xc0/0xc0
[  245.415922][ T6742]  ? lockdep_hardirqs_on+0x94/0x140
[  245.421220][ T6742]  ? __x64_sys_mount+0x1c/0xc0
[  245.426082][ T6742]  do_syscall_64+0x4c/0xa0
[  245.430515][ T6742]  ? clear_bhb_loop+0x30/0x80
[  245.435284][ T6742]  ? clear_bhb_loop+0x30/0x80
[  245.439964][ T6742]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  245.445872][ T6742] RIP: 0033:0x7f5a08da6b8a
[  245.450297][ T6742] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  245.470135][ T6742] RSP: 002b:00007f5a0800be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  245.478535][ T6742] RAX: ffffffffffffffda RBX: 00007f5a0800bee0 RCX: 00007f5a08da6b8a
[  245.486495][ T6742] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f5a0800bea0
[  245.494845][ T6742] RBP: 0000200000000400 R08: 00007f5a0800bee0 R09: 0000000000000000
[  245.502894][ T6742] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  245.511132][ T6742] R13: 00007f5a0800bea0 R14: 00000000000125bb R15: 00002000000004c0
[  245.519184][ T6742]  </TASK>
[  245.522496][ T6742] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  245.535762][ T6742] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  245.544069][ T6740] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  245.551636][ T6740] CPU: 0 PID: 6740 Comm: syz.5.482 Not tainted syzkaller #0
[  245.559015][ T6740] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  245.569433][ T6740] Call Trace:
[  245.572707][ T6740]  <TASK>
[  245.575777][ T6740]  dump_stack_lvl+0x188/0x250
[  245.580670][ T6740]  ? show_regs_print_info+0x20/0x20
[  245.585874][ T6740]  ? load_image+0x400/0x400
[  245.590400][ T6740]  sysfs_create_dir_ns+0x26a/0x290
[  245.595517][ T6740]  ? sysfs_warn_dup+0xa0/0xa0
[  245.600335][ T6740]  ? do_raw_spin_unlock+0x11d/0x230
[  245.605757][ T6740]  kobject_add_internal+0x6e0/0xd90
[  245.611022][ T6740]  kobject_init_and_add+0x128/0x190
[  245.616241][ T6740]  ? lockdep_softirqs_off+0x430/0x430
[  245.621662][ T6740]  ? kobject_add+0x230/0x230
[  245.626644][ T6740]  ? __init_swait_queue_head+0xa5/0x150
[  245.632395][ T6740]  gfs2_sys_fs_add+0x24f/0x4b0
[  245.637175][ T6740]  ? gfs2_recover_set+0x240/0x240
[  245.642296][ T6740]  ? snprintf+0xe5/0x140
[  245.646537][ T6740]  ? __free_pages+0x95/0x1a0
[  245.651133][ T6740]  ? vscnprintf+0x80/0x80
[  245.655465][ T6740]  gfs2_fill_super+0x120f/0x1f00
[  245.660824][ T6740]  ? gfs2_reconfigure+0xd30/0xd30
[  245.665868][ T6740]  ? sb_set_blocksize+0xa5/0xe0
[  245.670722][ T6740]  get_tree_bdev+0x3f1/0x610
[  245.675330][ T6740]  ? gfs2_reconfigure+0xd30/0xd30
[  245.680443][ T6740]  gfs2_get_tree+0x4d/0x1e0
[  245.684961][ T6740]  vfs_get_tree+0x88/0x270
[  245.689383][ T6740]  do_new_mount+0x24a/0xa40
[  245.693900][ T6740]  __se_sys_mount+0x2e3/0x3d0
[  245.698663][ T6740]  ? __x64_sys_mount+0xc0/0xc0
[  245.703433][ T6740]  ? lockdep_hardirqs_on+0x94/0x140
[  245.708733][ T6740]  ? __x64_sys_mount+0x1c/0xc0
[  245.713506][ T6740]  do_syscall_64+0x4c/0xa0
[  245.717928][ T6740]  ? clear_bhb_loop+0x30/0x80
[  245.722613][ T6740]  ? clear_bhb_loop+0x30/0x80
[  245.727302][ T6740]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  245.733735][ T6740] RIP: 0033:0x7f44b1b26b8a
[  245.738520][ T6740] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  245.758243][ T6740] RSP: 002b:00007f44b0d8be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  245.767204][ T6740] RAX: ffffffffffffffda RBX: 00007f44b0d8bee0 RCX: 00007f44b1b26b8a
[  245.775562][ T6740] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f44b0d8bea0
[  245.783676][ T6740] RBP: 0000200000000400 R08: 00007f44b0d8bee0 R09: 0000000000000000
[  245.791898][ T6740] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  245.799877][ T6740] R13: 00007f44b0d8bea0 R14: 00000000000125bb R15: 00002000000004c0
[  245.808134][ T6740]  </TASK>
[  245.812130][ T6740] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  245.825804][ T6740] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  245.911871][ T6744] set_capacity_and_notify: 2 callbacks suppressed
[  245.911886][ T6744] loop0: detected capacity change from 0 to 32768
[  245.946441][ T6744] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  245.953982][ T6744] CPU: 1 PID: 6744 Comm: syz.0.483 Not tainted syzkaller #0
[  245.961275][ T6744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  245.971331][ T6744] Call Trace:
[  245.974620][ T6744]  <TASK>
[  245.977550][ T6744]  dump_stack_lvl+0x188/0x250
[  245.982359][ T6744]  ? show_regs_print_info+0x20/0x20
[  245.987680][ T6744]  ? load_image+0x400/0x400
[  245.992200][ T6744]  sysfs_create_dir_ns+0x26a/0x290
[  245.997756][ T6744]  ? sysfs_warn_dup+0xa0/0xa0
[  246.002446][ T6744]  ? do_raw_spin_unlock+0x11d/0x230
[  246.007661][ T6744]  kobject_add_internal+0x6e0/0xd90
[  246.012884][ T6744]  kobject_init_and_add+0x128/0x190
[  246.018108][ T6744]  ? lockdep_softirqs_off+0x430/0x430
[  246.023700][ T6744]  ? kobject_add+0x230/0x230
[  246.028314][ T6744]  ? __init_swait_queue_head+0xa5/0x150
[  246.034148][ T6744]  gfs2_sys_fs_add+0x24f/0x4b0
[  246.039658][ T6744]  ? gfs2_recover_set+0x240/0x240
[  246.044704][ T6744]  ? snprintf+0xe5/0x140
[  246.049008][ T6744]  ? __free_pages+0x95/0x1a0
[  246.053701][ T6744]  ? vscnprintf+0x80/0x80
[  246.058100][ T6744]  gfs2_fill_super+0x120f/0x1f00
[  246.063060][ T6744]  ? gfs2_reconfigure+0xd30/0xd30
[  246.068108][ T6744]  ? sb_set_blocksize+0xa5/0xe0
[  246.073128][ T6744]  get_tree_bdev+0x3f1/0x610
[  246.077783][ T6744]  ? gfs2_reconfigure+0xd30/0xd30
[  246.082893][ T6744]  gfs2_get_tree+0x4d/0x1e0
[  246.087389][ T6744]  vfs_get_tree+0x88/0x270
[  246.091837][ T6744]  do_new_mount+0x24a/0xa40
[  246.096357][ T6744]  __se_sys_mount+0x2e3/0x3d0
[  246.101059][ T6744]  ? __x64_sys_mount+0xc0/0xc0
[  246.105833][ T6744]  ? lockdep_hardirqs_on+0x94/0x140
[  246.111077][ T6744]  ? __x64_sys_mount+0x1c/0xc0
[  246.115939][ T6744]  do_syscall_64+0x4c/0xa0
[  246.120362][ T6744]  ? clear_bhb_loop+0x30/0x80
[  246.125044][ T6744]  ? clear_bhb_loop+0x30/0x80
[  246.129737][ T6744]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  246.135660][ T6744] RIP: 0033:0x7f0c3ee8bb8a
[  246.140125][ T6744] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  246.160378][ T6744] RSP: 002b:00007f0c3e0f0e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  246.168800][ T6744] RAX: ffffffffffffffda RBX: 00007f0c3e0f0ee0 RCX: 00007f0c3ee8bb8a
[  246.176783][ T6744] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f0c3e0f0ea0
[  246.184938][ T6744] RBP: 0000200000000400 R08: 00007f0c3e0f0ee0 R09: 0000000000000000
[  246.192910][ T6744] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  246.201068][ T6744] R13: 00007f0c3e0f0ea0 R14: 00000000000125bb R15: 00002000000004c0
[  246.205109][ T6747] loop4: detected capacity change from 0 to 32768
[  246.209049][ T6744]  </TASK>
[  246.219446][ T6744] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  246.233529][ T6744] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  246.429962][ T6748] loop3: detected capacity change from 0 to 32768
[  246.442258][ T6747] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  246.449863][ T6747] CPU: 0 PID: 6747 Comm: syz.4.485 Not tainted syzkaller #0
[  246.457153][ T6747] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  246.467460][ T6747] Call Trace:
[  246.470744][ T6747]  <TASK>
[  246.473677][ T6747]  dump_stack_lvl+0x188/0x250
[  246.478453][ T6747]  ? show_regs_print_info+0x20/0x20
[  246.483655][ T6747]  ? load_image+0x400/0x400
[  246.488273][ T6747]  sysfs_create_dir_ns+0x26a/0x290
[  246.493433][ T6747]  ? sysfs_warn_dup+0xa0/0xa0
[  246.498137][ T6747]  ? do_raw_spin_unlock+0x11d/0x230
[  246.503362][ T6747]  kobject_add_internal+0x6e0/0xd90
[  246.508573][ T6747]  kobject_init_and_add+0x128/0x190
[  246.513794][ T6747]  ? lockdep_softirqs_off+0x430/0x430
[  246.519169][ T6747]  ? kobject_add+0x230/0x230
[  246.523810][ T6747]  ? __init_swait_queue_head+0xa5/0x150
[  246.529384][ T6747]  gfs2_sys_fs_add+0x24f/0x4b0
[  246.534154][ T6747]  ? gfs2_recover_set+0x240/0x240
[  246.539298][ T6747]  ? snprintf+0xe5/0x140
[  246.543805][ T6747]  ? __free_pages+0x95/0x1a0
[  246.548394][ T6747]  ? vscnprintf+0x80/0x80
[  246.552726][ T6747]  gfs2_fill_super+0x120f/0x1f00
[  246.557016][ T6750] loop1: detected capacity change from 0 to 32768
[  246.557662][ T6747]  ? gfs2_reconfigure+0xd30/0xd30
[  246.569166][ T6747]  ? sb_set_blocksize+0xa5/0xe0
[  246.574090][ T6747]  get_tree_bdev+0x3f1/0x610
[  246.579039][ T6747]  ? gfs2_reconfigure+0xd30/0xd30
[  246.584085][ T6747]  gfs2_get_tree+0x4d/0x1e0
[  246.588625][ T6747]  vfs_get_tree+0x88/0x270
[  246.593080][ T6747]  do_new_mount+0x24a/0xa40
[  246.597778][ T6747]  __se_sys_mount+0x2e3/0x3d0
[  246.602469][ T6747]  ? __x64_sys_mount+0xc0/0xc0
[  246.607422][ T6747]  ? lockdep_hardirqs_on+0x94/0x140
[  246.612619][ T6747]  ? __x64_sys_mount+0x1c/0xc0
[  246.617388][ T6747]  do_syscall_64+0x4c/0xa0
[  246.621910][ T6747]  ? clear_bhb_loop+0x30/0x80
[  246.627493][ T6747]  ? clear_bhb_loop+0x30/0x80
[  246.632693][ T6747]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  246.638698][ T6747] RIP: 0033:0x7fee58e0cb8a
[  246.643394][ T6747] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  246.663654][ T6747] RSP: 002b:00007fee58071e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  246.672076][ T6747] RAX: ffffffffffffffda RBX: 00007fee58071ee0 RCX: 00007fee58e0cb8a
[  246.680052][ T6747] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fee58071ea0
[  246.688127][ T6747] RBP: 0000200000000400 R08: 00007fee58071ee0 R09: 0000000000000000
[  246.696309][ T6747] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  246.704288][ T6747] R13: 00007fee58071ea0 R14: 00000000000125bb R15: 00002000000004c0
[  246.712392][ T6747]  </TASK>
[  246.716323][ T6747] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  246.729918][ T6747] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  246.867919][ T6752] loop5: detected capacity change from 0 to 32768
[  246.887624][ T6750] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  246.895371][ T6750] CPU: 1 PID: 6750 Comm: syz.1.486 Not tainted syzkaller #0
[  246.902793][ T6750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  246.912870][ T6750] Call Trace:
[  246.916147][ T6750]  <TASK>
[  246.919078][ T6750]  dump_stack_lvl+0x188/0x250
[  246.923839][ T6750]  ? show_regs_print_info+0x20/0x20
[  246.929044][ T6750]  ? load_image+0x400/0x400
[  246.933657][ T6750]  sysfs_create_dir_ns+0x26a/0x290
[  246.938764][ T6750]  ? sysfs_warn_dup+0xa0/0xa0
[  246.943438][ T6750]  ? do_raw_spin_unlock+0x11d/0x230
[  246.948687][ T6750]  kobject_add_internal+0x6e0/0xd90
[  246.953900][ T6750]  kobject_init_and_add+0x128/0x190
[  246.959270][ T6750]  ? lockdep_softirqs_off+0x430/0x430
[  246.964648][ T6750]  ? kobject_add+0x230/0x230
[  246.969246][ T6750]  ? __init_swait_queue_head+0xa5/0x150
[  246.974798][ T6750]  gfs2_sys_fs_add+0x24f/0x4b0
[  246.979570][ T6750]  ? gfs2_recover_set+0x240/0x240
[  246.984602][ T6750]  ? snprintf+0xe5/0x140
[  246.988849][ T6750]  ? __free_pages+0x95/0x1a0
[  246.993567][ T6750]  ? vscnprintf+0x80/0x80
[  246.997911][ T6750]  gfs2_fill_super+0x120f/0x1f00
[  247.002950][ T6750]  ? gfs2_reconfigure+0xd30/0xd30
[  247.008077][ T6750]  ? sb_set_blocksize+0xa5/0xe0
[  247.013113][ T6750]  get_tree_bdev+0x3f1/0x610
[  247.017707][ T6750]  ? gfs2_reconfigure+0xd30/0xd30
[  247.022723][ T6750]  gfs2_get_tree+0x4d/0x1e0
[  247.027306][ T6750]  vfs_get_tree+0x88/0x270
[  247.031714][ T6750]  do_new_mount+0x24a/0xa40
[  247.036288][ T6750]  __se_sys_mount+0x2e3/0x3d0
[  247.040944][ T6750]  ? __x64_sys_mount+0xc0/0xc0
[  247.045781][ T6750]  ? lockdep_hardirqs_on+0x94/0x140
[  247.051052][ T6750]  ? __x64_sys_mount+0x1c/0xc0
[  247.055849][ T6750]  do_syscall_64+0x4c/0xa0
[  247.060301][ T6750]  ? clear_bhb_loop+0x30/0x80
[  247.065191][ T6750]  ? clear_bhb_loop+0x30/0x80
[  247.069882][ T6750]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  247.075853][ T6750] RIP: 0033:0x7f5a08da6b8a
[  247.080258][ T6750] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  247.099851][ T6750] RSP: 002b:00007f5a0800be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  247.108446][ T6750] RAX: ffffffffffffffda RBX: 00007f5a0800bee0 RCX: 00007f5a08da6b8a
[  247.116503][ T6750] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f5a0800bea0
[  247.124466][ T6750] RBP: 0000200000000400 R08: 00007f5a0800bee0 R09: 0000000000000000
[  247.132549][ T6750] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  247.140510][ T6750] R13: 00007f5a0800bea0 R14: 00000000000125bb R15: 00002000000004c0
[  247.148509][ T6750]  </TASK>
[  247.152443][ T6754] loop0: detected capacity change from 0 to 32768
[  247.152805][ T6750] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  247.172383][ T6750] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  247.177013][ T6748] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  247.186423][ T6748] CPU: 0 PID: 6748 Comm: syz.3.484 Not tainted syzkaller #0
[  247.193913][ T6748] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  247.204051][ T6748] Call Trace:
[  247.207422][ T6748]  <TASK>
[  247.210493][ T6748]  dump_stack_lvl+0x188/0x250
[  247.215172][ T6748]  ? show_regs_print_info+0x20/0x20
[  247.220366][ T6748]  ? load_image+0x400/0x400
[  247.225057][ T6748]  sysfs_create_dir_ns+0x26a/0x290
[  247.229678][ T6752] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  247.230181][ T6748]  ? sysfs_warn_dup+0xa0/0xa0
[  247.242246][ T6748]  ? do_raw_spin_unlock+0x11d/0x230
[  247.247429][ T6748]  kobject_add_internal+0x6e0/0xd90
[  247.252613][ T6748]  kobject_init_and_add+0x128/0x190
[  247.257795][ T6748]  ? lockdep_softirqs_off+0x430/0x430
[  247.263162][ T6748]  ? kobject_add+0x230/0x230
[  247.267921][ T6748]  ? __init_swait_queue_head+0xa5/0x150
[  247.273465][ T6748]  gfs2_sys_fs_add+0x24f/0x4b0
[  247.278215][ T6748]  ? gfs2_recover_set+0x240/0x240
[  247.283308][ T6748]  ? snprintf+0xe5/0x140
[  247.287528][ T6748]  ? __free_pages+0x95/0x1a0
[  247.292104][ T6748]  ? vscnprintf+0x80/0x80
[  247.296560][ T6748]  gfs2_fill_super+0x120f/0x1f00
[  247.301491][ T6748]  ? gfs2_reconfigure+0xd30/0xd30
[  247.306592][ T6748]  ? sb_set_blocksize+0xa5/0xe0
[  247.311424][ T6748]  get_tree_bdev+0x3f1/0x610
[  247.315996][ T6748]  ? gfs2_reconfigure+0xd30/0xd30
[  247.321002][ T6748]  gfs2_get_tree+0x4d/0x1e0
[  247.325492][ T6748]  vfs_get_tree+0x88/0x270
[  247.329917][ T6748]  do_new_mount+0x24a/0xa40
[  247.334436][ T6748]  __se_sys_mount+0x2e3/0x3d0
[  247.339121][ T6748]  ? __x64_sys_mount+0xc0/0xc0
[  247.343902][ T6748]  ? lockdep_hardirqs_on+0x94/0x140
[  247.349170][ T6748]  ? __x64_sys_mount+0x1c/0xc0
[  247.354130][ T6748]  do_syscall_64+0x4c/0xa0
[  247.358672][ T6748]  ? clear_bhb_loop+0x30/0x80
[  247.363627][ T6748]  ? clear_bhb_loop+0x30/0x80
[  247.368391][ T6748]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  247.374542][ T6748] RIP: 0033:0x7fb9901ccb8a
[  247.378964][ T6748] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  247.398555][ T6748] RSP: 002b:00007fb98f431e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  247.407127][ T6748] RAX: ffffffffffffffda RBX: 00007fb98f431ee0 RCX: 00007fb9901ccb8a
[  247.415085][ T6748] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fb98f431ea0
[  247.423302][ T6748] RBP: 0000200000000400 R08: 00007fb98f431ee0 R09: 0000000000000000
[  247.431259][ T6748] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  247.439305][ T6748] R13: 00007fb98f431ea0 R14: 00000000000125bb R15: 00002000000004c0
[  247.447298][ T6748]  </TASK>
[  247.450386][ T6752] CPU: 1 PID: 6752 Comm: syz.5.487 Not tainted syzkaller #0
[  247.451962][ T6748] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  247.457664][ T6752] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  247.457675][ T6752] Call Trace:
[  247.457681][ T6752]  <TASK>
[  247.457687][ T6752]  dump_stack_lvl+0x188/0x250
[  247.457709][ T6752]  ? show_regs_print_info+0x20/0x20
[  247.471307][ T6748] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  247.480821][ T6752]  ? load_image+0x400/0x400
[  247.480849][ T6752]  sysfs_create_dir_ns+0x26a/0x290
[  247.513637][ T6752]  ? sysfs_warn_dup+0xa0/0xa0
[  247.518315][ T6752]  ? do_raw_spin_unlock+0x11d/0x230
[  247.523511][ T6752]  kobject_add_internal+0x6e0/0xd90
[  247.529025][ T6752]  kobject_init_and_add+0x128/0x190
[  247.534393][ T6752]  ? lockdep_softirqs_off+0x430/0x430
[  247.539792][ T6752]  ? kobject_add+0x230/0x230
[  247.544612][ T6752]  ? __init_swait_queue_head+0xa5/0x150
[  247.550180][ T6752]  gfs2_sys_fs_add+0x24f/0x4b0
[  247.554943][ T6754] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  247.554954][ T6752]  ? gfs2_recover_set+0x240/0x240
[  247.567392][ T6752]  ? snprintf+0xe5/0x140
[  247.571624][ T6752]  ? __free_pages+0x95/0x1a0
[  247.576196][ T6752]  ? vscnprintf+0x80/0x80
[  247.580513][ T6752]  gfs2_fill_super+0x120f/0x1f00
[  247.585452][ T6752]  ? gfs2_reconfigure+0xd30/0xd30
[  247.590482][ T6752]  ? sb_set_blocksize+0xa5/0xe0
[  247.595324][ T6752]  get_tree_bdev+0x3f1/0x610
[  247.599941][ T6752]  ? gfs2_reconfigure+0xd30/0xd30
[  247.604964][ T6752]  gfs2_get_tree+0x4d/0x1e0
[  247.609538][ T6752]  vfs_get_tree+0x88/0x270
[  247.613952][ T6752]  do_new_mount+0x24a/0xa40
[  247.618534][ T6752]  __se_sys_mount+0x2e3/0x3d0
[  247.623370][ T6752]  ? __x64_sys_mount+0xc0/0xc0
[  247.628203][ T6752]  ? lockdep_hardirqs_on+0x94/0x140
[  247.633431][ T6752]  ? __x64_sys_mount+0x1c/0xc0
[  247.638267][ T6752]  do_syscall_64+0x4c/0xa0
[  247.642663][ T6752]  ? clear_bhb_loop+0x30/0x80
[  247.647422][ T6752]  ? clear_bhb_loop+0x30/0x80
[  247.652290][ T6752]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  247.658197][ T6752] RIP: 0033:0x7f44b1b26b8a
[  247.662791][ T6752] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  247.682814][ T6752] RSP: 002b:00007f44b0d8be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  247.691232][ T6752] RAX: ffffffffffffffda RBX: 00007f44b0d8bee0 RCX: 00007f44b1b26b8a
[  247.699302][ T6752] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f44b0d8bea0
[  247.707794][ T6752] RBP: 0000200000000400 R08: 00007f44b0d8bee0 R09: 0000000000000000
[  247.715925][ T6752] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  247.724102][ T6752] R13: 00007f44b0d8bea0 R14: 00000000000125bb R15: 00002000000004c0
[  247.732094][ T6752]  </TASK>
[  247.735109][ T6754] CPU: 0 PID: 6754 Comm: syz.0.488 Not tainted syzkaller #0
[  247.735188][ T6752] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  247.742504][ T6754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
2026/05/09 17:50:11 executed programs: 483
[  247.755933][ T6752] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  247.766014][ T6754] Call Trace:
[  247.766025][ T6754]  <TASK>
[  247.766032][ T6754]  dump_stack_lvl+0x188/0x250
[  247.766055][ T6754]  ? show_regs_print_info+0x20/0x20
[  247.788671][ T6754]  ? load_image+0x400/0x400
[  247.793188][ T6754]  sysfs_create_dir_ns+0x26a/0x290
[  247.798322][ T6754]  ? sysfs_warn_dup+0xa0/0xa0
[  247.799418][ T4234] Bluetooth: hci5: command 0x0406 tx timeout
[  247.802996][ T6754]  ? do_raw_spin_unlock+0x11d/0x230
[  247.803017][ T6754]  kobject_add_internal+0x6e0/0xd90
[  247.803038][ T6754]  kobject_init_and_add+0x128/0x190
[  247.803051][ T6754]  ? lockdep_softirqs_off+0x430/0x430
[  247.830128][ T6754]  ? kobject_add+0x230/0x230
[  247.834728][ T6754]  ? __init_swait_queue_head+0xa5/0x150
[  247.840285][ T6754]  gfs2_sys_fs_add+0x24f/0x4b0
[  247.845053][ T6754]  ? gfs2_recover_set+0x240/0x240
[  247.850090][ T6754]  ? snprintf+0xe5/0x140
[  247.854353][ T6754]  ? __free_pages+0x95/0x1a0
[  247.858955][ T6754]  ? vscnprintf+0x80/0x80
[  247.863299][ T6754]  gfs2_fill_super+0x120f/0x1f00
[  247.868262][ T6754]  ? gfs2_reconfigure+0xd30/0xd30
[  247.873301][ T6754]  ? sb_set_blocksize+0xa5/0xe0
[  247.878168][ T6754]  get_tree_bdev+0x3f1/0x610
[  247.883082][ T6754]  ? gfs2_reconfigure+0xd30/0xd30
[  247.888129][ T6754]  gfs2_get_tree+0x4d/0x1e0
[  247.892734][ T6754]  vfs_get_tree+0x88/0x270
[  247.897280][ T6754]  do_new_mount+0x24a/0xa40
[  247.901982][ T6754]  __se_sys_mount+0x2e3/0x3d0
[  247.906674][ T6754]  ? __x64_sys_mount+0xc0/0xc0
[  247.911499][ T6754]  ? lockdep_hardirqs_on+0x94/0x140
[  247.916704][ T6754]  ? __x64_sys_mount+0x1c/0xc0
[  247.921485][ T6754]  do_syscall_64+0x4c/0xa0
[  247.925906][ T6754]  ? clear_bhb_loop+0x30/0x80
[  247.930594][ T6754]  ? clear_bhb_loop+0x30/0x80
[  247.935273][ T6754]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  247.941175][ T6754] RIP: 0033:0x7f0c3ee8bb8a
[  247.945750][ T6754] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  247.965448][ T6754] RSP: 002b:00007f0c3e0f0e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  247.973866][ T6754] RAX: ffffffffffffffda RBX: 00007f0c3e0f0ee0 RCX: 00007f0c3ee8bb8a
[  247.981851][ T6754] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f0c3e0f0ea0
[  247.989824][ T6754] RBP: 0000200000000400 R08: 00007f0c3e0f0ee0 R09: 0000000000000000
[  247.997801][ T6754] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  248.005877][ T6754] R13: 00007f0c3e0f0ea0 R14: 00000000000125bb R15: 00002000000004c0
[  248.014125][ T6754]  </TASK>
[  248.018279][ T6754] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  248.032299][ T6754] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  248.373925][ T6761] loop5: detected capacity change from 0 to 32768
[  248.472779][ T6761] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  248.480400][ T6761] CPU: 1 PID: 6761 Comm: syz.5.489 Not tainted syzkaller #0
[  248.487801][ T6761] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  248.498139][ T6761] Call Trace:
[  248.501440][ T6761]  <TASK>
[  248.504463][ T6761]  dump_stack_lvl+0x188/0x250
[  248.509254][ T6761]  ? show_regs_print_info+0x20/0x20
[  248.514471][ T6761]  ? load_image+0x400/0x400
[  248.518991][ T6761]  sysfs_create_dir_ns+0x26a/0x290
[  248.524113][ T6761]  ? sysfs_warn_dup+0xa0/0xa0
[  248.528934][ T6761]  ? do_raw_spin_unlock+0x11d/0x230
[  248.534213][ T6761]  kobject_add_internal+0x6e0/0xd90
[  248.539532][ T6761]  kobject_init_and_add+0x128/0x190
[  248.544736][ T6761]  ? lockdep_softirqs_off+0x430/0x430
[  248.550472][ T6761]  ? kobject_add+0x230/0x230
[  248.555075][ T6761]  ? __init_swait_queue_head+0xa5/0x150
[  248.560915][ T6761]  gfs2_sys_fs_add+0x24f/0x4b0
[  248.565699][ T6761]  ? gfs2_recover_set+0x240/0x240
[  248.570776][ T6761]  ? snprintf+0xe5/0x140
[  248.575027][ T6761]  ? __free_pages+0x95/0x1a0
[  248.579631][ T6761]  ? vscnprintf+0x80/0x80
[  248.583978][ T6761]  gfs2_fill_super+0x120f/0x1f00
[  248.588936][ T6761]  ? gfs2_reconfigure+0xd30/0xd30
[  248.593982][ T6761]  ? sb_set_blocksize+0xa5/0xe0
[  248.599275][ T6761]  get_tree_bdev+0x3f1/0x610
[  248.604670][ T6761]  ? gfs2_reconfigure+0xd30/0xd30
[  248.610358][ T6761]  gfs2_get_tree+0x4d/0x1e0
[  248.614913][ T6761]  vfs_get_tree+0x88/0x270
[  248.619358][ T6761]  do_new_mount+0x24a/0xa40
[  248.623971][ T6761]  __se_sys_mount+0x2e3/0x3d0
[  248.629341][ T6761]  ? __x64_sys_mount+0xc0/0xc0
[  248.634478][ T6761]  ? lockdep_hardirqs_on+0x94/0x140
[  248.639831][ T6761]  ? __x64_sys_mount+0x1c/0xc0
[  248.645051][ T6761]  do_syscall_64+0x4c/0xa0
[  248.650250][ T6761]  ? clear_bhb_loop+0x30/0x80
[  248.655772][ T6763] loop3: detected capacity change from 0 to 32768
[  248.662939][ T6761]  ? clear_bhb_loop+0x30/0x80
[  248.668103][ T6761]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  248.674276][ T6761] RIP: 0033:0x7f44b1b26b8a
[  248.679151][ T6761] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  248.699033][ T6761] RSP: 002b:00007f44b0d8be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  248.707544][ T6761] RAX: ffffffffffffffda RBX: 00007f44b0d8bee0 RCX: 00007f44b1b26b8a
[  248.715611][ T6761] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f44b0d8bea0
[  248.723763][ T6761] RBP: 0000200000000400 R08: 00007f44b0d8bee0 R09: 0000000000000000
[  248.731833][ T6761] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  248.740000][ T6761] R13: 00007f44b0d8bea0 R14: 00000000000125bb R15: 00002000000004c0
[  248.748301][ T6761]  </TASK>
[  248.753010][ T6761] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  248.766640][ T6761] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  248.998129][ T6766] loop1: detected capacity change from 0 to 32768
[  248.998226][ T6767] loop0: detected capacity change from 0 to 32768
[  249.024893][ T6763] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  249.034120][ T6763] CPU: 0 PID: 6763 Comm: syz.3.492 Not tainted syzkaller #0
[  249.037243][ T6767] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  249.041750][ T6763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  249.059724][ T6763] Call Trace:
[  249.063008][ T6763]  <TASK>
[  249.065960][ T6763]  dump_stack_lvl+0x188/0x250
[  249.070756][ T6763]  ? show_regs_print_info+0x20/0x20
[  249.076399][ T6763]  ? load_image+0x400/0x400
[  249.080926][ T6763]  sysfs_create_dir_ns+0x26a/0x290
[  249.086044][ T6763]  ? sysfs_warn_dup+0xa0/0xa0
[  249.090836][ T6763]  ? do_raw_spin_unlock+0x11d/0x230
[  249.096221][ T6763]  kobject_add_internal+0x6e0/0xd90
[  249.101528][ T6763]  kobject_init_and_add+0x128/0x190
[  249.106812][ T6763]  ? lockdep_softirqs_off+0x430/0x430
[  249.112372][ T6763]  ? kobject_add+0x230/0x230
[  249.117154][ T6763]  ? __init_swait_queue_head+0xa5/0x150
[  249.124475][ T6763]  gfs2_sys_fs_add+0x24f/0x4b0
[  249.129760][ T6763]  ? gfs2_recover_set+0x240/0x240
[  249.135758][ T6763]  ? snprintf+0xe5/0x140
[  249.140094][ T6763]  ? __free_pages+0x95/0x1a0
[  249.144944][ T6763]  ? vscnprintf+0x80/0x80
[  249.150020][ T6763]  gfs2_fill_super+0x120f/0x1f00
[  249.155126][ T6763]  ? gfs2_reconfigure+0xd30/0xd30
[  249.161123][ T6763]  ? sb_set_blocksize+0xa5/0xe0
[  249.166358][ T6763]  get_tree_bdev+0x3f1/0x610
[  249.170983][ T6763]  ? gfs2_reconfigure+0xd30/0xd30
[  249.176480][ T6763]  gfs2_get_tree+0x4d/0x1e0
[  249.180998][ T6763]  vfs_get_tree+0x88/0x270
[  249.185401][ T6763]  do_new_mount+0x24a/0xa40
[  249.189903][ T6763]  __se_sys_mount+0x2e3/0x3d0
[  249.194568][ T6763]  ? __x64_sys_mount+0xc0/0xc0
[  249.199325][ T6763]  ? lockdep_hardirqs_on+0x94/0x140
[  249.206967][ T6763]  ? __x64_sys_mount+0x1c/0xc0
[  249.211876][ T6763]  do_syscall_64+0x4c/0xa0
[  249.216603][ T6763]  ? clear_bhb_loop+0x30/0x80
[  249.221480][ T6763]  ? clear_bhb_loop+0x30/0x80
[  249.226247][ T6763]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  249.232463][ T6763] RIP: 0033:0x7fb9901ccb8a
[  249.236975][ T6763] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  249.256968][ T6763] RSP: 002b:00007fb98f431e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  249.265459][ T6763] RAX: ffffffffffffffda RBX: 00007fb98f431ee0 RCX: 00007fb9901ccb8a
[  249.273872][ T6763] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fb98f431ea0
[  249.282086][ T6763] RBP: 0000200000000400 R08: 00007fb98f431ee0 R09: 0000000000000000
[  249.290172][ T6763] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  249.298224][ T6763] R13: 00007fb98f431ea0 R14: 00000000000125bb R15: 00002000000004c0
[  249.306192][ T6763]  </TASK>
[  249.309292][ T6767] CPU: 1 PID: 6767 Comm: syz.0.494 Not tainted syzkaller #0
[  249.310176][ T6763] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  249.316670][ T6767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  249.316681][ T6767] Call Trace:
[  249.316686][ T6767]  <TASK>
[  249.316692][ T6767]  dump_stack_lvl+0x188/0x250
[  249.330771][ T6763] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  249.341641][ T6767]  ? show_regs_print_info+0x20/0x20
[  249.341672][ T6767]  ? load_image+0x400/0x400
[  249.341692][ T6767]  sysfs_create_dir_ns+0x26a/0x290
[  249.366145][ T6766] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  249.369181][ T6767]  ? sysfs_warn_dup+0xa0/0xa0
[  249.387484][ T6767]  ? do_raw_spin_unlock+0x11d/0x230
[  249.393011][ T6767]  kobject_add_internal+0x6e0/0xd90
[  249.398363][ T6767]  kobject_init_and_add+0x128/0x190
[  249.403737][ T6767]  ? lockdep_softirqs_off+0x430/0x430
[  249.409118][ T6767]  ? kobject_add+0x230/0x230
[  249.413828][ T6767]  ? __init_swait_queue_head+0xa5/0x150
[  249.419507][ T6767]  gfs2_sys_fs_add+0x24f/0x4b0
[  249.424382][ T6767]  ? gfs2_recover_set+0x240/0x240
[  249.429445][ T6767]  ? snprintf+0xe5/0x140
[  249.433938][ T6767]  ? __free_pages+0x95/0x1a0
[  249.438817][ T6767]  ? vscnprintf+0x80/0x80
[  249.443261][ T6767]  gfs2_fill_super+0x120f/0x1f00
[  249.448567][ T6767]  ? gfs2_reconfigure+0xd30/0xd30
[  249.453690][ T6767]  ? sb_set_blocksize+0xa5/0xe0
[  249.458555][ T6767]  get_tree_bdev+0x3f1/0x610
[  249.463263][ T6767]  ? gfs2_reconfigure+0xd30/0xd30
[  249.468557][ T6767]  gfs2_get_tree+0x4d/0x1e0
[  249.473151][ T6767]  vfs_get_tree+0x88/0x270
[  249.477751][ T6767]  do_new_mount+0x24a/0xa40
[  249.482320][ T6767]  __se_sys_mount+0x2e3/0x3d0
[  249.487089][ T6767]  ? __x64_sys_mount+0xc0/0xc0
[  249.491869][ T6767]  ? lockdep_hardirqs_on+0x94/0x140
[  249.497054][ T6767]  ? __x64_sys_mount+0x1c/0xc0
[  249.502033][ T6767]  do_syscall_64+0x4c/0xa0
[  249.506518][ T6767]  ? clear_bhb_loop+0x30/0x80
[  249.511609][ T6767]  ? clear_bhb_loop+0x30/0x80
[  249.516309][ T6767]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  249.522471][ T6767] RIP: 0033:0x7f0c3ee8bb8a
[  249.527502][ T6767] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  249.549335][ T6767] RSP: 002b:00007f0c3e0f0e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  249.558358][ T6767] RAX: ffffffffffffffda RBX: 00007f0c3e0f0ee0 RCX: 00007f0c3ee8bb8a
[  249.566626][ T6767] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f0c3e0f0ea0
[  249.574865][ T6767] RBP: 0000200000000400 R08: 00007f0c3e0f0ee0 R09: 0000000000000000
[  249.583030][ T6767] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  249.591091][ T6767] R13: 00007f0c3e0f0ea0 R14: 00000000000125bb R15: 00002000000004c0
[  249.599758][ T6767]  </TASK>
[  249.602877][ T6766] CPU: 0 PID: 6766 Comm: syz.1.493 Not tainted syzkaller #0
[  249.603764][ T6767] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  249.610707][ T6766] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  249.610720][ T6766] Call Trace:
[  249.610726][ T6766]  <TASK>
[  249.610732][ T6766]  dump_stack_lvl+0x188/0x250
[  249.610752][ T6766]  ? show_regs_print_info+0x20/0x20
[  249.610766][ T6766]  ? load_image+0x400/0x400
[  249.610787][ T6766]  sysfs_create_dir_ns+0x26a/0x290
[  249.610804][ T6766]  ? sysfs_warn_dup+0xa0/0xa0
[  249.610819][ T6766]  ? do_raw_spin_unlock+0x11d/0x230
[  249.610836][ T6766]  kobject_add_internal+0x6e0/0xd90
[  249.610855][ T6766]  kobject_init_and_add+0x128/0x190
[  249.610869][ T6766]  ? lockdep_softirqs_off+0x430/0x430
[  249.610888][ T6766]  ? kobject_add+0x230/0x230
[  249.610906][ T6766]  ? __init_swait_queue_head+0xa5/0x150
[  249.610926][ T6766]  gfs2_sys_fs_add+0x24f/0x4b0
[  249.610944][ T6766]  ? gfs2_recover_set+0x240/0x240
[  249.610959][ T6766]  ? snprintf+0xe5/0x140
[  249.610973][ T6766]  ? __free_pages+0x95/0x1a0
[  249.610991][ T6766]  ? vscnprintf+0x80/0x80
[  249.611014][ T6766]  gfs2_fill_super+0x120f/0x1f00
[  249.611040][ T6766]  ? gfs2_reconfigure+0xd30/0xd30
[  249.611069][ T6766]  ? sb_set_blocksize+0xa5/0xe0
[  249.611085][ T6766]  get_tree_bdev+0x3f1/0x610
[  249.611102][ T6766]  ? gfs2_reconfigure+0xd30/0xd30
[  249.611120][ T6766]  gfs2_get_tree+0x4d/0x1e0
[  249.611141][ T6766]  vfs_get_tree+0x88/0x270
[  249.611158][ T6766]  do_new_mount+0x24a/0xa40
[  249.611179][ T6766]  __se_sys_mount+0x2e3/0x3d0
[  249.611199][ T6766]  ? __x64_sys_mount+0xc0/0xc0
[  249.611217][ T6766]  ? lockdep_hardirqs_on+0x94/0x140
[  249.611233][ T6766]  ? __x64_sys_mount+0x1c/0xc0
[  249.611250][ T6766]  do_syscall_64+0x4c/0xa0
[  249.611263][ T6766]  ? clear_bhb_loop+0x30/0x80
[  249.611278][ T6766]  ? clear_bhb_loop+0x30/0x80
[  249.611293][ T6766]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  249.611309][ T6766] RIP: 0033:0x7f5a08da6b8a
[  249.611325][ T6766] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  249.624974][ T6767] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  249.636170][ T6766] RSP: 002b:00007f5a0800be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  249.636189][ T6766] RAX: ffffffffffffffda RBX: 00007f5a0800bee0 RCX: 00007f5a08da6b8a
[  249.636200][ T6766] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f5a0800bea0
[  249.860079][ T6766] RBP: 0000200000000400 R08: 00007f5a0800bee0 R09: 0000000000000000
[  249.868147][ T6766] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  249.876212][ T6766] R13: 00007f5a0800bea0 R14: 00000000000125bb R15: 00002000000004c0
[  249.884196][ T6766]  </TASK>
[  249.888190][ T6766] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  249.901940][ T6766] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  249.921087][ T6759] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  249.930399][ T6759] CPU: 0 PID: 6759 Comm: syz.4.491 Not tainted syzkaller #0
[  249.937979][ T6759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  249.948574][ T6759] Call Trace:
[  249.952210][ T6759]  <TASK>
[  249.955152][ T6759]  dump_stack_lvl+0x188/0x250
[  249.959853][ T6759]  ? show_regs_print_info+0x20/0x20
[  249.965063][ T6759]  ? load_image+0x400/0x400
[  249.969770][ T6759]  sysfs_create_dir_ns+0x26a/0x290
[  249.975322][ T6759]  ? sysfs_warn_dup+0xa0/0xa0
[  249.980312][ T6759]  ? do_raw_spin_unlock+0x11d/0x230
[  249.985931][ T6759]  kobject_add_internal+0x6e0/0xd90
[  249.991447][ T6759]  kobject_init_and_add+0x128/0x190
[  249.996938][ T6759]  ? lockdep_softirqs_off+0x430/0x430
[  250.003417][ T6759]  ? kobject_add+0x230/0x230
[  250.008375][ T6759]  ? __init_swait_queue_head+0xa5/0x150
[  250.013938][ T6759]  gfs2_sys_fs_add+0x24f/0x4b0
[  250.018854][ T6759]  ? gfs2_recover_set+0x240/0x240
[  250.024067][ T6759]  ? snprintf+0xe5/0x140
[  250.028718][ T6759]  ? __free_pages+0x95/0x1a0
[  250.033517][ T6759]  ? vscnprintf+0x80/0x80
[  250.038130][ T6759]  gfs2_fill_super+0x120f/0x1f00
[  250.043625][ T6759]  ? gfs2_reconfigure+0xd30/0xd30
[  250.049379][ T6759]  ? sb_set_blocksize+0xa5/0xe0
[  250.054245][ T6759]  get_tree_bdev+0x3f1/0x610
[  250.059027][ T6759]  ? gfs2_reconfigure+0xd30/0xd30
[  250.064050][ T6759]  gfs2_get_tree+0x4d/0x1e0
[  250.068549][ T6759]  vfs_get_tree+0x88/0x270
[  250.072971][ T6759]  do_new_mount+0x24a/0xa40
[  250.077586][ T6759]  __se_sys_mount+0x2e3/0x3d0
[  250.082352][ T6759]  ? __x64_sys_mount+0xc0/0xc0
[  250.087417][ T6759]  ? lockdep_hardirqs_on+0x94/0x140
[  250.093790][ T6759]  ? __x64_sys_mount+0x1c/0xc0
[  250.098744][ T6759]  do_syscall_64+0x4c/0xa0
[  250.104593][ T6759]  ? clear_bhb_loop+0x30/0x80
[  250.110529][ T6759]  ? clear_bhb_loop+0x30/0x80
[  250.115742][ T6759]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  250.121734][ T6759] RIP: 0033:0x7fee58e0cb8a
[  250.126177][ T6759] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  250.146600][ T6759] RSP: 002b:00007fee58071e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  250.155466][ T6759] RAX: ffffffffffffffda RBX: 00007fee58071ee0 RCX: 00007fee58e0cb8a
[  250.164808][ T6759] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fee58071ea0
[  250.174321][ T6759] RBP: 0000200000000400 R08: 00007fee58071ee0 R09: 0000000000000000
[  250.183092][ T6759] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  250.192624][ T6759] R13: 00007fee58071ea0 R14: 00000000000125bb R15: 00002000000004c0
[  250.201513][ T6759]  </TASK>
[  250.207803][ T6759] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  250.221931][ T6759] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  250.341616][ T6769] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  250.349836][ T6769] CPU: 1 PID: 6769 Comm: syz.5.495 Not tainted syzkaller #0
[  250.357730][ T6769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  250.368399][ T6769] Call Trace:
[  250.372396][ T6769]  <TASK>
[  250.375963][ T6769]  dump_stack_lvl+0x188/0x250
[  250.382379][ T6769]  ? show_regs_print_info+0x20/0x20
[  250.387972][ T6769]  ? load_image+0x400/0x400
[  250.392757][ T6769]  sysfs_create_dir_ns+0x26a/0x290
[  250.397885][ T6769]  ? sysfs_warn_dup+0xa0/0xa0
[  250.402581][ T6769]  ? do_raw_spin_unlock+0x11d/0x230
[  250.407967][ T6769]  kobject_add_internal+0x6e0/0xd90
[  250.413186][ T6769]  kobject_init_and_add+0x128/0x190
[  250.418487][ T6769]  ? lockdep_softirqs_off+0x430/0x430
[  250.423877][ T6769]  ? kobject_add+0x230/0x230
[  250.428590][ T6769]  ? __init_swait_queue_head+0xa5/0x150
[  250.434247][ T6769]  gfs2_sys_fs_add+0x24f/0x4b0
[  250.439115][ T6769]  ? gfs2_recover_set+0x240/0x240
[  250.444417][ T6769]  ? snprintf+0xe5/0x140
[  250.448822][ T6769]  ? __free_pages+0x95/0x1a0
[  250.453430][ T6769]  ? vscnprintf+0x80/0x80
[  250.457865][ T6769]  gfs2_fill_super+0x120f/0x1f00
[  250.463008][ T6769]  ? gfs2_reconfigure+0xd30/0xd30
[  250.468135][ T6769]  ? sb_set_blocksize+0xa5/0xe0
[  250.472994][ T6769]  get_tree_bdev+0x3f1/0x610
[  250.477679][ T6769]  ? gfs2_reconfigure+0xd30/0xd30
[  250.482904][ T6769]  gfs2_get_tree+0x4d/0x1e0
[  250.487425][ T6769]  vfs_get_tree+0x88/0x270
[  250.492043][ T6769]  do_new_mount+0x24a/0xa40
[  250.496579][ T6769]  __se_sys_mount+0x2e3/0x3d0
[  250.501271][ T6769]  ? __x64_sys_mount+0xc0/0xc0
[  250.506140][ T6769]  ? lockdep_hardirqs_on+0x94/0x140
[  250.511887][ T6769]  ? __x64_sys_mount+0x1c/0xc0
[  250.516667][ T6769]  do_syscall_64+0x4c/0xa0
[  250.521105][ T6769]  ? clear_bhb_loop+0x30/0x80
[  250.526074][ T6769]  ? clear_bhb_loop+0x30/0x80
[  250.530792][ T6769]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  250.536841][ T6769] RIP: 0033:0x7f44b1b26b8a
[  250.541276][ T6769] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  250.561457][ T6769] RSP: 002b:00007f44b0d8be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  250.570775][ T6769] RAX: ffffffffffffffda RBX: 00007f44b0d8bee0 RCX: 00007f44b1b26b8a
[  250.578785][ T6769] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f44b0d8bea0
[  250.586879][ T6769] RBP: 0000200000000400 R08: 00007f44b0d8bee0 R09: 0000000000000000
[  250.596300][ T6769] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  250.605701][ T6769] R13: 00007f44b0d8bea0 R14: 00000000000125bb R15: 00002000000004c0
[  250.615535][ T6769]  </TASK>
[  250.621161][ T6769] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  250.636772][ T6769] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  250.916529][ T6771] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  250.924316][ T6771] CPU: 0 PID: 6771 Comm: syz.0.497 Not tainted syzkaller #0
[  250.931600][ T6771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  250.941821][ T6771] Call Trace:
[  250.945101][ T6771]  <TASK>
[  250.948043][ T6771]  dump_stack_lvl+0x188/0x250
[  250.952904][ T6771]  ? show_regs_print_info+0x20/0x20
[  250.958102][ T6771]  ? load_image+0x400/0x400
[  250.962620][ T6771]  sysfs_create_dir_ns+0x26a/0x290
[  250.967734][ T6771]  ? sysfs_warn_dup+0xa0/0xa0
[  250.972416][ T6771]  ? do_raw_spin_unlock+0x11d/0x230
[  250.977628][ T6771]  kobject_add_internal+0x6e0/0xd90
[  250.982859][ T6771]  kobject_init_and_add+0x128/0x190
[  250.988069][ T6771]  ? lockdep_softirqs_off+0x430/0x430
[  250.993456][ T6771]  ? kobject_add+0x230/0x230
[  250.998315][ T6771]  ? __init_swait_queue_head+0xa5/0x150
[  251.003879][ T6771]  gfs2_sys_fs_add+0x24f/0x4b0
[  251.008650][ T6771]  ? gfs2_recover_set+0x240/0x240
[  251.013684][ T6771]  ? snprintf+0xe5/0x140
[  251.017921][ T6771]  ? __free_pages+0x95/0x1a0
[  251.018753][ T6778] set_capacity_and_notify: 4 callbacks suppressed
[  251.018765][ T6778] loop5: detected capacity change from 0 to 32768
[  251.022668][ T6771]  ? vscnprintf+0x80/0x80
[  251.040199][ T6771]  gfs2_fill_super+0x120f/0x1f00
[  251.045254][ T6771]  ? gfs2_reconfigure+0xd30/0xd30
[  251.050327][ T6771]  ? sb_set_blocksize+0xa5/0xe0
[  251.055189][ T6771]  get_tree_bdev+0x3f1/0x610
[  251.059959][ T6771]  ? gfs2_reconfigure+0xd30/0xd30
[  251.065083][ T6771]  gfs2_get_tree+0x4d/0x1e0
[  251.069592][ T6771]  vfs_get_tree+0x88/0x270
[  251.074024][ T6771]  do_new_mount+0x24a/0xa40
[  251.078552][ T6771]  __se_sys_mount+0x2e3/0x3d0
[  251.083246][ T6771]  ? __x64_sys_mount+0xc0/0xc0
[  251.088038][ T6771]  ? lockdep_hardirqs_on+0x94/0x140
[  251.093413][ T6771]  ? __x64_sys_mount+0x1c/0xc0
[  251.098464][ T6771]  do_syscall_64+0x4c/0xa0
[  251.103062][ T6771]  ? clear_bhb_loop+0x30/0x80
[  251.107933][ T6771]  ? clear_bhb_loop+0x30/0x80
[  251.112701][ T6771]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  251.118694][ T6771] RIP: 0033:0x7f0c3ee8bb8a
[  251.123204][ T6771] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  251.143083][ T6771] RSP: 002b:00007f0c3e0f0e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  251.151695][ T6771] RAX: ffffffffffffffda RBX: 00007f0c3e0f0ee0 RCX: 00007f0c3ee8bb8a
[  251.162398][ T6771] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f0c3e0f0ea0
[  251.171922][ T6771] RBP: 0000200000000400 R08: 00007f0c3e0f0ee0 R09: 0000000000000000
[  251.178527][ T6774] loop1: detected capacity change from 0 to 32768
[  251.180266][ T6771] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  251.180279][ T6771] R13: 00007f0c3e0f0ea0 R14: 00000000000125bb R15: 00002000000004c0
[  251.180299][ T6771]  </TASK>
[  251.181199][ T6771] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  251.219311][ T6771] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  251.229938][ T6776] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  251.237428][ T6776] CPU: 0 PID: 6776 Comm: syz.3.496 Not tainted syzkaller #0
[  251.244840][ T6776] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  251.254986][ T6776] Call Trace:
[  251.258363][ T6776]  <TASK>
[  251.261301][ T6776]  dump_stack_lvl+0x188/0x250
[  251.266004][ T6776]  ? show_regs_print_info+0x20/0x20
[  251.271372][ T6776]  ? load_image+0x400/0x400
[  251.273612][ T6778] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  251.276099][ T6776]  sysfs_create_dir_ns+0x26a/0x290
[  251.276124][ T6776]  ? sysfs_warn_dup+0xa0/0xa0
[  251.276139][ T6776]  ? do_raw_spin_unlock+0x11d/0x230
[  251.298955][ T6776]  kobject_add_internal+0x6e0/0xd90
[  251.304398][ T6776]  kobject_init_and_add+0x128/0x190
[  251.309782][ T6776]  ? lockdep_softirqs_off+0x430/0x430
[  251.315160][ T6776]  ? kobject_add+0x230/0x230
[  251.319749][ T6776]  ? __init_swait_queue_head+0xa5/0x150
[  251.325378][ T6776]  gfs2_sys_fs_add+0x24f/0x4b0
[  251.330224][ T6776]  ? gfs2_recover_set+0x240/0x240
[  251.335492][ T6776]  ? snprintf+0xe5/0x140
[  251.339900][ T6776]  ? __free_pages+0x95/0x1a0
[  251.344720][ T6776]  ? vscnprintf+0x80/0x80
[  251.349383][ T6776]  gfs2_fill_super+0x120f/0x1f00
[  251.354341][ T6776]  ? gfs2_reconfigure+0xd30/0xd30
[  251.359892][ T6776]  ? sb_set_blocksize+0xa5/0xe0
[  251.364745][ T6776]  get_tree_bdev+0x3f1/0x610
[  251.369520][ T6776]  ? gfs2_reconfigure+0xd30/0xd30
[  251.374712][ T6776]  gfs2_get_tree+0x4d/0x1e0
[  251.379219][ T6776]  vfs_get_tree+0x88/0x270
[  251.384013][ T6776]  do_new_mount+0x24a/0xa40
[  251.388525][ T6776]  __se_sys_mount+0x2e3/0x3d0
[  251.393191][ T6776]  ? __x64_sys_mount+0xc0/0xc0
[  251.397941][ T6776]  ? lockdep_hardirqs_on+0x94/0x140
[  251.403302][ T6776]  ? __x64_sys_mount+0x1c/0xc0
[  251.408069][ T6776]  do_syscall_64+0x4c/0xa0
[  251.412645][ T6776]  ? clear_bhb_loop+0x30/0x80
[  251.417392][ T6776]  ? clear_bhb_loop+0x30/0x80
[  251.422194][ T6776]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  251.428163][ T6776] RIP: 0033:0x7fb9901ccb8a
[  251.432690][ T6776] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  251.452660][ T6776] RSP: 002b:00007fb98f431e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  251.461157][ T6776] RAX: ffffffffffffffda RBX: 00007fb98f431ee0 RCX: 00007fb9901ccb8a
[  251.469120][ T6776] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fb98f431ea0
[  251.477209][ T6776] RBP: 0000200000000400 R08: 00007fb98f431ee0 R09: 0000000000000000
[  251.485430][ T6776] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  251.493610][ T6776] R13: 00007fb98f431ea0 R14: 00000000000125bb R15: 00002000000004c0
[  251.501692][ T6776]  </TASK>
[  251.504694][ T6778] CPU: 1 PID: 6778 Comm: syz.5.499 Not tainted syzkaller #0
[  251.505749][ T6776] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  251.512684][ T6778] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  251.526092][ T6776] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  251.536091][ T6778] Call Trace:
[  251.536103][ T6778]  <TASK>
[  251.536111][ T6778]  dump_stack_lvl+0x188/0x250
[  251.554032][ T6778]  ? show_regs_print_info+0x20/0x20
[  251.559235][ T6778]  ? load_image+0x400/0x400
[  251.563765][ T6778]  sysfs_create_dir_ns+0x26a/0x290
[  251.568882][ T6778]  ? sysfs_warn_dup+0xa0/0xa0
[  251.573659][ T6778]  ? do_raw_spin_unlock+0x11d/0x230
[  251.578868][ T6778]  kobject_add_internal+0x6e0/0xd90
[  251.584077][ T6778]  kobject_init_and_add+0x128/0x190
[  251.589376][ T6778]  ? lockdep_softirqs_off+0x430/0x430
[  251.594754][ T6778]  ? kobject_add+0x230/0x230
[  251.599356][ T6778]  ? __init_swait_queue_head+0xa5/0x150
[  251.604907][ T6778]  gfs2_sys_fs_add+0x24f/0x4b0
[  251.609761][ T6778]  ? gfs2_recover_set+0x240/0x240
[  251.614811][ T6778]  ? snprintf+0xe5/0x140
[  251.619148][ T6778]  ? __free_pages+0x95/0x1a0
[  251.623827][ T6778]  ? vscnprintf+0x80/0x80
[  251.628174][ T6778]  gfs2_fill_super+0x120f/0x1f00
[  251.633139][ T6778]  ? gfs2_reconfigure+0xd30/0xd30
[  251.638184][ T6778]  ? sb_set_blocksize+0xa5/0xe0
[  251.643053][ T6778]  get_tree_bdev+0x3f1/0x610
[  251.647660][ T6778]  ? gfs2_reconfigure+0xd30/0xd30
[  251.652706][ T6778]  gfs2_get_tree+0x4d/0x1e0
[  251.657231][ T6778]  vfs_get_tree+0x88/0x270
[  251.661756][ T6778]  do_new_mount+0x24a/0xa40
[  251.666364][ T6778]  __se_sys_mount+0x2e3/0x3d0
[  251.671415][ T6778]  ? __x64_sys_mount+0xc0/0xc0
[  251.676211][ T6778]  ? lockdep_hardirqs_on+0x94/0x140
[  251.681508][ T6778]  ? __x64_sys_mount+0x1c/0xc0
[  251.686325][ T6778]  do_syscall_64+0x4c/0xa0
[  251.690849][ T6778]  ? clear_bhb_loop+0x30/0x80
[  251.695708][ T6778]  ? clear_bhb_loop+0x30/0x80
[  251.700394][ T6778]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  251.706313][ T6778] RIP: 0033:0x7f44b1b26b8a
[  251.710885][ T6778] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  251.730504][ T6778] RSP: 002b:00007f44b0d8be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  251.739181][ T6778] RAX: ffffffffffffffda RBX: 00007f44b0d8bee0 RCX: 00007f44b1b26b8a
[  251.747372][ T6778] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f44b0d8bea0
[  251.755559][ T6778] RBP: 0000200000000400 R08: 00007f44b0d8bee0 R09: 0000000000000000
[  251.763724][ T6778] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  251.771762][ T6778] R13: 00007f44b0d8bea0 R14: 00000000000125bb R15: 00002000000004c0
[  251.779938][ T6778]  </TASK>
[  251.784065][ T6778] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  251.798121][ T6778] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  251.846055][ T6774] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  251.847418][ T6780] loop4: detected capacity change from 0 to 32768
[  251.883419][ T6774] CPU: 0 PID: 6774 Comm: syz.1.498 Not tainted syzkaller #0
[  251.890742][ T6774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  251.901042][ T6774] Call Trace:
[  251.904321][ T6774]  <TASK>
[  251.907251][ T6774]  dump_stack_lvl+0x188/0x250
[  251.911956][ T6774]  ? show_regs_print_info+0x20/0x20
[  251.917280][ T6774]  ? load_image+0x400/0x400
[  251.921799][ T6774]  sysfs_create_dir_ns+0x26a/0x290
[  251.926938][ T6774]  ? sysfs_warn_dup+0xa0/0xa0
[  251.931892][ T6774]  ? do_raw_spin_unlock+0x11d/0x230
[  251.937108][ T6774]  kobject_add_internal+0x6e0/0xd90
[  251.942418][ T6774]  kobject_init_and_add+0x128/0x190
[  251.947926][ T6774]  ? lockdep_softirqs_off+0x430/0x430
[  251.953315][ T6774]  ? kobject_add+0x230/0x230
[  251.957920][ T6774]  ? __init_swait_queue_head+0xa5/0x150
[  251.963476][ T6774]  gfs2_sys_fs_add+0x24f/0x4b0
[  251.968335][ T6774]  ? gfs2_recover_set+0x240/0x240
[  251.973536][ T6774]  ? snprintf+0xe5/0x140
[  251.977770][ T6774]  ? __free_pages+0x95/0x1a0
[  251.982452][ T6774]  ? vscnprintf+0x80/0x80
[  251.986809][ T6774]  gfs2_fill_super+0x120f/0x1f00
[  251.992232][ T6774]  ? gfs2_reconfigure+0xd30/0xd30
[  251.997377][ T6774]  ? sb_set_blocksize+0xa5/0xe0
[  252.002236][ T6774]  get_tree_bdev+0x3f1/0x610
[  252.006841][ T6774]  ? gfs2_reconfigure+0xd30/0xd30
[  252.011975][ T6774]  gfs2_get_tree+0x4d/0x1e0
[  252.016664][ T6774]  vfs_get_tree+0x88/0x270
[  252.021093][ T6774]  do_new_mount+0x24a/0xa40
[  252.025700][ T6774]  __se_sys_mount+0x2e3/0x3d0
[  252.030389][ T6774]  ? __x64_sys_mount+0xc0/0xc0
[  252.035975][ T6774]  ? lockdep_hardirqs_on+0x94/0x140
[  252.041356][ T6774]  ? __x64_sys_mount+0x1c/0xc0
[  252.046119][ T6774]  do_syscall_64+0x4c/0xa0
[  252.050548][ T6774]  ? clear_bhb_loop+0x30/0x80
[  252.055312][ T6774]  ? clear_bhb_loop+0x30/0x80
[  252.060255][ T6774]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  252.066255][ T6774] RIP: 0033:0x7f5a08da6b8a
[  252.070683][ T6774] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  252.090744][ T6774] RSP: 002b:00007f5a0800be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  252.099305][ T6774] RAX: ffffffffffffffda RBX: 00007f5a0800bee0 RCX: 00007f5a08da6b8a
[  252.107286][ T6774] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f5a0800bea0
[  252.115363][ T6774] RBP: 0000200000000400 R08: 00007f5a0800bee0 R09: 0000000000000000
[  252.123618][ T6774] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  252.132076][ T6774] R13: 00007f5a0800bea0 R14: 00000000000125bb R15: 00002000000004c0
[  252.140407][ T6774]  </TASK>
[  252.148467][ T6774] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  252.165526][ T6774] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  252.217683][ T6780] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  252.225230][ T6780] CPU: 0 PID: 6780 Comm: syz.4.500 Not tainted syzkaller #0
[  252.232519][ T6780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  252.242855][ T6780] Call Trace:
[  252.246134][ T6780]  <TASK>
[  252.249089][ T6780]  dump_stack_lvl+0x188/0x250
[  252.253778][ T6780]  ? show_regs_print_info+0x20/0x20
[  252.258995][ T6780]  ? load_image+0x400/0x400
[  252.263564][ T6780]  sysfs_create_dir_ns+0x26a/0x290
[  252.268689][ T6780]  ? sysfs_warn_dup+0xa0/0xa0
[  252.273461][ T6780]  ? do_raw_spin_unlock+0x11d/0x230
[  252.278671][ T6780]  kobject_add_internal+0x6e0/0xd90
[  252.283888][ T6780]  kobject_init_and_add+0x128/0x190
[  252.289107][ T6780]  ? lockdep_softirqs_off+0x430/0x430
[  252.294596][ T6780]  ? kobject_add+0x230/0x230
[  252.299249][ T6780]  ? __init_swait_queue_head+0xa5/0x150
[  252.304798][ T6780]  gfs2_sys_fs_add+0x24f/0x4b0
[  252.309575][ T6780]  ? gfs2_recover_set+0x240/0x240
[  252.314694][ T6780]  ? snprintf+0xe5/0x140
[  252.318945][ T6780]  ? __free_pages+0x95/0x1a0
[  252.323558][ T6780]  ? vscnprintf+0x80/0x80
[  252.328008][ T6780]  gfs2_fill_super+0x120f/0x1f00
[  252.332973][ T6780]  ? gfs2_reconfigure+0xd30/0xd30
[  252.338119][ T6780]  ? sb_set_blocksize+0xa5/0xe0
[  252.343063][ T6780]  get_tree_bdev+0x3f1/0x610
[  252.347802][ T6780]  ? gfs2_reconfigure+0xd30/0xd30
[  252.352849][ T6780]  gfs2_get_tree+0x4d/0x1e0
[  252.357363][ T6780]  vfs_get_tree+0x88/0x270
[  252.361790][ T6780]  do_new_mount+0x24a/0xa40
[  252.366304][ T6780]  __se_sys_mount+0x2e3/0x3d0
[  252.370996][ T6780]  ? __x64_sys_mount+0xc0/0xc0
[  252.375818][ T6780]  ? lockdep_hardirqs_on+0x94/0x140
[  252.381117][ T6780]  ? __x64_sys_mount+0x1c/0xc0
[  252.385899][ T6780]  do_syscall_64+0x4c/0xa0
[  252.390325][ T6780]  ? clear_bhb_loop+0x30/0x80
[  252.395012][ T6780]  ? clear_bhb_loop+0x30/0x80
[  252.400028][ T6780]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  252.405949][ T6780] RIP: 0033:0x7fee58e0cb8a
[  252.410385][ T6780] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  252.429993][ T6780] RSP: 002b:00007fee58071e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  252.438407][ T6780] RAX: ffffffffffffffda RBX: 00007fee58071ee0 RCX: 00007fee58e0cb8a
[  252.446477][ T6780] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fee58071ea0
[  252.454541][ T6780] RBP: 0000200000000400 R08: 00007fee58071ee0 R09: 0000000000000000
[  252.462698][ T6780] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  252.470937][ T6780] R13: 00007fee58071ea0 R14: 00000000000125bb R15: 00002000000004c0
[  252.478966][ T6780]  </TASK>
[  252.482803][ T6780] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  252.496456][ T6780] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  252.505007][ T6782] loop5: detected capacity change from 0 to 32768
[  252.746492][ T6786] loop3: detected capacity change from 0 to 32768
[  252.773715][ T6786] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  252.780331][ T6785] loop0: detected capacity change from 0 to 32768
[  252.781305][ T6786] CPU: 1 PID: 6786 Comm: syz.3.503 Not tainted syzkaller #0
[  252.796064][ T6786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  252.806298][ T6786] Call Trace:
[  252.809586][ T6786]  <TASK>
[  252.812526][ T6786]  dump_stack_lvl+0x188/0x250
[  252.817205][ T6786]  ? show_regs_print_info+0x20/0x20
[  252.822506][ T6786]  ? load_image+0x400/0x400
[  252.827144][ T6786]  sysfs_create_dir_ns+0x26a/0x290
[  252.832244][ T6786]  ? sysfs_warn_dup+0xa0/0xa0
[  252.837000][ T6786]  ? do_raw_spin_unlock+0x11d/0x230
[  252.842362][ T6786]  kobject_add_internal+0x6e0/0xd90
[  252.847628][ T6786]  kobject_init_and_add+0x128/0x190
[  252.853067][ T6786]  ? lockdep_softirqs_off+0x430/0x430
[  252.858420][ T6786]  ? kobject_add+0x230/0x230
[  252.863185][ T6786]  ? __init_swait_queue_head+0xa5/0x150
[  252.868968][ T6786]  gfs2_sys_fs_add+0x24f/0x4b0
[  252.873884][ T6786]  ? gfs2_recover_set+0x240/0x240
[  252.878886][ T6786]  ? snprintf+0xe5/0x140
[  252.883145][ T6786]  ? __free_pages+0x95/0x1a0
[  252.887807][ T6786]  ? vscnprintf+0x80/0x80
[  252.892283][ T6786]  gfs2_fill_super+0x120f/0x1f00
[  252.897206][ T6786]  ? gfs2_reconfigure+0xd30/0xd30
[  252.902218][ T6786]  ? sb_set_blocksize+0xa5/0xe0
[  252.907059][ T6786]  get_tree_bdev+0x3f1/0x610
[  252.911665][ T6786]  ? gfs2_reconfigure+0xd30/0xd30
[  252.916699][ T6786]  gfs2_get_tree+0x4d/0x1e0
[  252.921220][ T6786]  vfs_get_tree+0x88/0x270
[  252.925650][ T6786]  do_new_mount+0x24a/0xa40
[  252.930231][ T6786]  __se_sys_mount+0x2e3/0x3d0
[  252.934886][ T6786]  ? __x64_sys_mount+0xc0/0xc0
[  252.939639][ T6786]  ? lockdep_hardirqs_on+0x94/0x140
[  252.944816][ T6786]  ? __x64_sys_mount+0x1c/0xc0
[  252.949559][ T6786]  do_syscall_64+0x4c/0xa0
[  252.953960][ T6786]  ? clear_bhb_loop+0x30/0x80
[  252.958616][ T6786]  ? clear_bhb_loop+0x30/0x80
[  252.963266][ T6786]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  252.969140][ T6786] RIP: 0033:0x7fb9901ccb8a
[  252.973634][ T6786] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  252.993320][ T6786] RSP: 002b:00007fb98f431e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  253.001820][ T6786] RAX: ffffffffffffffda RBX: 00007fb98f431ee0 RCX: 00007fb9901ccb8a
[  253.009862][ T6786] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fb98f431ea0
[  253.017825][ T6786] RBP: 0000200000000400 R08: 00007fb98f431ee0 R09: 0000000000000000
[  253.025950][ T6786] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  253.033913][ T6786] R13: 00007fb98f431ea0 R14: 00000000000125bb R15: 00002000000004c0
[  253.042659][ T6786]  </TASK>
[  253.047169][ T6786] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  253.061463][ T6786] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  253.087810][ T6785] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  253.096177][ T6785] CPU: 0 PID: 6785 Comm: syz.0.502 Not tainted syzkaller #0
[  253.103686][ T6785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  253.113941][ T6785] Call Trace:
[  253.117310][ T6785]  <TASK>
[  253.120249][ T6785]  dump_stack_lvl+0x188/0x250
[  253.124933][ T6785]  ? show_regs_print_info+0x20/0x20
[  253.130161][ T6785]  ? load_image+0x400/0x400
[  253.134690][ T6785]  sysfs_create_dir_ns+0x26a/0x290
[  253.139816][ T6785]  ? sysfs_warn_dup+0xa0/0xa0
2026/05/09 17:50:17 executed programs: 499
[  253.144683][ T6785]  ? do_raw_spin_unlock+0x11d/0x230
[  253.149943][ T6785]  kobject_add_internal+0x6e0/0xd90
[  253.155332][ T6785]  kobject_init_and_add+0x128/0x190
[  253.160731][ T6785]  ? lockdep_softirqs_off+0x430/0x430
[  253.166369][ T6785]  ? kobject_add+0x230/0x230
[  253.170972][ T6785]  ? __init_swait_queue_head+0xa5/0x150
[  253.176552][ T6785]  gfs2_sys_fs_add+0x24f/0x4b0
[  253.181332][ T6785]  ? gfs2_recover_set+0x240/0x240
[  253.186369][ T6785]  ? snprintf+0xe5/0x140
[  253.190710][ T6785]  ? __free_pages+0x95/0x1a0
[  253.195687][ T6785]  ? vscnprintf+0x80/0x80
[  253.200223][ T6785]  gfs2_fill_super+0x120f/0x1f00
[  253.205185][ T6785]  ? gfs2_reconfigure+0xd30/0xd30
[  253.210234][ T6785]  ? sb_set_blocksize+0xa5/0xe0
[  253.215102][ T6785]  get_tree_bdev+0x3f1/0x610
[  253.219712][ T6785]  ? gfs2_reconfigure+0xd30/0xd30
[  253.224922][ T6785]  gfs2_get_tree+0x4d/0x1e0
[  253.229436][ T6785]  vfs_get_tree+0x88/0x270
[  253.234214][ T6785]  do_new_mount+0x24a/0xa40
[  253.238733][ T6785]  __se_sys_mount+0x2e3/0x3d0
[  253.243639][ T6785]  ? __x64_sys_mount+0xc0/0xc0
[  253.248607][ T6785]  ? lockdep_hardirqs_on+0x94/0x140
[  253.253902][ T6785]  ? __x64_sys_mount+0x1c/0xc0
[  253.258771][ T6785]  do_syscall_64+0x4c/0xa0
[  253.263208][ T6785]  ? clear_bhb_loop+0x30/0x80
[  253.267893][ T6785]  ? clear_bhb_loop+0x30/0x80
[  253.272596][ T6785]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  253.278574][ T6785] RIP: 0033:0x7f0c3ee8bb8a
[  253.282994][ T6785] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  253.303377][ T6785] RSP: 002b:00007f0c3e0f0e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  253.311905][ T6785] RAX: ffffffffffffffda RBX: 00007f0c3e0f0ee0 RCX: 00007f0c3ee8bb8a
[  253.319979][ T6785] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f0c3e0f0ea0
[  253.328309][ T6785] RBP: 0000200000000400 R08: 00007f0c3e0f0ee0 R09: 0000000000000000
[  253.337551][ T6785] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  253.346362][ T6785] R13: 00007f0c3e0f0ea0 R14: 00000000000125bb R15: 00002000000004c0
[  253.355577][ T6785]  </TASK>
[  253.359801][ T6785] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  253.373992][ T6785] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  253.384158][ T6782] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  253.391823][ T6782] CPU: 0 PID: 6782 Comm: syz.5.501 Not tainted syzkaller #0
[  253.399154][ T6782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  253.401082][ T6791] loop1: detected capacity change from 0 to 32768
[  253.409319][ T6782] Call Trace:
[  253.409330][ T6782]  <TASK>
[  253.409336][ T6782]  dump_stack_lvl+0x188/0x250
[  253.409356][ T6782]  ? show_regs_print_info+0x20/0x20
[  253.409368][ T6782]  ? load_image+0x400/0x400
[  253.409388][ T6782]  sysfs_create_dir_ns+0x26a/0x290
[  253.441986][ T6782]  ? sysfs_warn_dup+0xa0/0xa0
[  253.446684][ T6782]  ? do_raw_spin_unlock+0x11d/0x230
[  253.452111][ T6782]  kobject_add_internal+0x6e0/0xd90
[  253.457324][ T6782]  kobject_init_and_add+0x128/0x190
[  253.462531][ T6782]  ? lockdep_softirqs_off+0x430/0x430
[  253.468001][ T6782]  ? kobject_add+0x230/0x230
[  253.472715][ T6782]  ? __init_swait_queue_head+0xa5/0x150
[  253.478269][ T6782]  gfs2_sys_fs_add+0x24f/0x4b0
[  253.483037][ T6782]  ? gfs2_recover_set+0x240/0x240
[  253.488159][ T6782]  ? snprintf+0xe5/0x140
[  253.492408][ T6782]  ? __free_pages+0x95/0x1a0
[  253.497388][ T6782]  ? vscnprintf+0x80/0x80
[  253.501759][ T6782]  gfs2_fill_super+0x120f/0x1f00
[  253.506806][ T6782]  ? gfs2_reconfigure+0xd30/0xd30
[  253.512036][ T6782]  ? sb_set_blocksize+0xa5/0xe0
[  253.517093][ T6782]  get_tree_bdev+0x3f1/0x610
[  253.521702][ T6782]  ? gfs2_reconfigure+0xd30/0xd30
[  253.526882][ T6782]  gfs2_get_tree+0x4d/0x1e0
[  253.531693][ T6782]  vfs_get_tree+0x88/0x270
[  253.536371][ T6782]  do_new_mount+0x24a/0xa40
[  253.541245][ T6782]  __se_sys_mount+0x2e3/0x3d0
[  253.546447][ T6782]  ? __x64_sys_mount+0xc0/0xc0
[  253.551568][ T6782]  ? lockdep_hardirqs_on+0x94/0x140
[  253.556834][ T6782]  ? __x64_sys_mount+0x1c/0xc0
[  253.561715][ T6782]  do_syscall_64+0x4c/0xa0
[  253.566169][ T6782]  ? clear_bhb_loop+0x30/0x80
[  253.570887][ T6782]  ? clear_bhb_loop+0x30/0x80
[  253.575608][ T6782]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  253.581516][ T6782] RIP: 0033:0x7f44b1b26b8a
[  253.585938][ T6782] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  253.606232][ T6782] RSP: 002b:00007f44b0d8be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  253.615009][ T6782] RAX: ffffffffffffffda RBX: 00007f44b0d8bee0 RCX: 00007f44b1b26b8a
[  253.623212][ T6782] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f44b0d8bea0
[  253.631758][ T6782] RBP: 0000200000000400 R08: 00007f44b0d8bee0 R09: 0000000000000000
[  253.639821][ T6782] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  253.648170][ T6782] R13: 00007f44b0d8bea0 R14: 00000000000125bb R15: 00002000000004c0
[  253.656435][ T6782]  </TASK>
[  253.660220][ T6782] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  253.673931][ T6782] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  253.748324][ T6791] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  253.755953][ T6791] CPU: 1 PID: 6791 Comm: syz.1.505 Not tainted syzkaller #0
[  253.763330][ T6791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  253.764311][ T6789] loop4: detected capacity change from 0 to 32768
[  253.773695][ T6791] Call Trace:
[  253.773706][ T6791]  <TASK>
[  253.773711][ T6791]  dump_stack_lvl+0x188/0x250
[  253.773733][ T6791]  ? show_regs_print_info+0x20/0x20
[  253.773746][ T6791]  ? load_image+0x400/0x400
[  253.773766][ T6791]  sysfs_create_dir_ns+0x26a/0x290
[  253.773781][ T6791]  ? sysfs_warn_dup+0xa0/0xa0
[  253.773794][ T6791]  ? do_raw_spin_unlock+0x11d/0x230
[  253.773811][ T6791]  kobject_add_internal+0x6e0/0xd90
[  253.822661][ T6791]  kobject_init_and_add+0x128/0x190
[  253.827890][ T6791]  ? lockdep_softirqs_off+0x430/0x430
[  253.833367][ T6791]  ? kobject_add+0x230/0x230
[  253.838073][ T6791]  ? __init_swait_queue_head+0xa5/0x150
[  253.843912][ T6791]  gfs2_sys_fs_add+0x24f/0x4b0
[  253.849624][ T6791]  ? gfs2_recover_set+0x240/0x240
[  253.854753][ T6791]  ? snprintf+0xe5/0x140
[  253.859228][ T6791]  ? __free_pages+0x95/0x1a0
[  253.864794][ T6791]  ? vscnprintf+0x80/0x80
[  253.869213][ T6791]  gfs2_fill_super+0x120f/0x1f00
[  253.874155][ T6791]  ? gfs2_reconfigure+0xd30/0xd30
[  253.879715][ T6791]  ? sb_set_blocksize+0xa5/0xe0
[  253.884691][ T6791]  get_tree_bdev+0x3f1/0x610
[  253.889607][ T6791]  ? gfs2_reconfigure+0xd30/0xd30
[  253.894735][ T6791]  gfs2_get_tree+0x4d/0x1e0
[  253.899255][ T6791]  vfs_get_tree+0x88/0x270
[  253.903693][ T6791]  do_new_mount+0x24a/0xa40
[  253.908393][ T6791]  __se_sys_mount+0x2e3/0x3d0
[  253.913225][ T6791]  ? __x64_sys_mount+0xc0/0xc0
[  253.918043][ T6791]  ? lockdep_hardirqs_on+0x94/0x140
[  253.923253][ T6791]  ? __x64_sys_mount+0x1c/0xc0
[  253.928033][ T6791]  do_syscall_64+0x4c/0xa0
[  253.932468][ T6791]  ? clear_bhb_loop+0x30/0x80
[  253.937153][ T6791]  ? clear_bhb_loop+0x30/0x80
[  253.941862][ T6791]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  253.947777][ T6791] RIP: 0033:0x7f5a08da6b8a
[  253.952221][ T6791] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  253.972795][ T6791] RSP: 002b:00007f5a0800be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  253.981217][ T6791] RAX: ffffffffffffffda RBX: 00007f5a0800bee0 RCX: 00007f5a08da6b8a
[  253.989279][ T6791] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f5a0800bea0
[  253.991237][ T6793] loop3: detected capacity change from 0 to 32768
[  253.997423][ T6791] RBP: 0000200000000400 R08: 00007f5a0800bee0 R09: 0000000000000000
[  253.997436][ T6791] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  253.997445][ T6791] R13: 00007f5a0800bea0 R14: 00000000000125bb R15: 00002000000004c0
[  253.997464][ T6791]  </TASK>
[  253.997583][ T6791] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  254.045383][ T6791] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  254.114313][ T6793] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  254.123384][ T6793] CPU: 1 PID: 6793 Comm: syz.3.506 Not tainted syzkaller #0
[  254.131004][ T6793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  254.141194][ T6793] Call Trace:
[  254.144653][ T6793]  <TASK>
[  254.147930][ T6793]  dump_stack_lvl+0x188/0x250
[  254.152611][ T6793]  ? show_regs_print_info+0x20/0x20
[  254.157934][ T6793]  ? load_image+0x400/0x400
[  254.162544][ T6793]  sysfs_create_dir_ns+0x26a/0x290
[  254.167663][ T6793]  ? sysfs_warn_dup+0xa0/0xa0
[  254.172353][ T6793]  ? do_raw_spin_unlock+0x11d/0x230
[  254.177562][ T6793]  kobject_add_internal+0x6e0/0xd90
[  254.182778][ T6793]  kobject_init_and_add+0x128/0x190
[  254.188255][ T6793]  ? lockdep_softirqs_off+0x430/0x430
[  254.193733][ T6793]  ? kobject_add+0x230/0x230
[  254.198352][ T6793]  ? __init_swait_queue_head+0xa5/0x150
[  254.204003][ T6793]  gfs2_sys_fs_add+0x24f/0x4b0
[  254.208960][ T6793]  ? gfs2_recover_set+0x240/0x240
[  254.214087][ T6793]  ? snprintf+0xe5/0x140
[  254.218342][ T6793]  ? __free_pages+0x95/0x1a0
[  254.223038][ T6793]  ? vscnprintf+0x80/0x80
[  254.227393][ T6793]  gfs2_fill_super+0x120f/0x1f00
[  254.232375][ T6793]  ? gfs2_reconfigure+0xd30/0xd30
[  254.237429][ T6793]  ? sb_set_blocksize+0xa5/0xe0
[  254.242466][ T6793]  get_tree_bdev+0x3f1/0x610
[  254.247175][ T6793]  ? gfs2_reconfigure+0xd30/0xd30
[  254.252743][ T6793]  gfs2_get_tree+0x4d/0x1e0
[  254.257256][ T6793]  vfs_get_tree+0x88/0x270
[  254.261669][ T6793]  do_new_mount+0x24a/0xa40
[  254.266183][ T6793]  __se_sys_mount+0x2e3/0x3d0
[  254.270880][ T6793]  ? __x64_sys_mount+0xc0/0xc0
[  254.275658][ T6793]  ? lockdep_hardirqs_on+0x94/0x140
[  254.280958][ T6793]  ? __x64_sys_mount+0x1c/0xc0
[  254.285762][ T6793]  do_syscall_64+0x4c/0xa0
[  254.290192][ T6793]  ? clear_bhb_loop+0x30/0x80
[  254.294978][ T6793]  ? clear_bhb_loop+0x30/0x80
[  254.299859][ T6793]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  254.305942][ T6793] RIP: 0033:0x7fb9901ccb8a
[  254.310378][ T6793] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  254.330365][ T6793] RSP: 002b:00007fb98f431e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  254.338980][ T6793] RAX: ffffffffffffffda RBX: 00007fb98f431ee0 RCX: 00007fb9901ccb8a
[  254.346964][ T6793] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fb98f431ea0
[  254.354936][ T6793] RBP: 0000200000000400 R08: 00007fb98f431ee0 R09: 0000000000000000
[  254.362912][ T6793] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  254.371138][ T6793] R13: 00007fb98f431ea0 R14: 00000000000125bb R15: 00002000000004c0
[  254.377073][ T6795] loop0: detected capacity change from 0 to 32768
[  254.379469][ T6793]  </TASK>
[  254.386386][   T27] INFO: task syz.2.42:5487 blocked for more than 143 seconds.
[  254.390163][ T6793] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  254.410656][ T6793] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  254.431269][   T27]       Not tainted syzkaller #0
[  254.436702][ T6789] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  254.470489][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  254.483477][ T6789] CPU: 0 PID: 6789 Comm: syz.4.504 Not tainted syzkaller #0
[  254.490807][ T6789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  254.501121][ T6789] Call Trace:
[  254.504421][ T6789]  <TASK>
[  254.507359][ T6789]  dump_stack_lvl+0x188/0x250
[  254.512136][ T6789]  ? show_regs_print_info+0x20/0x20
[  254.517637][ T6789]  ? load_image+0x400/0x400
[  254.522161][ T6789]  sysfs_create_dir_ns+0x26a/0x290
[  254.527284][ T6789]  ? sysfs_warn_dup+0xa0/0xa0
[  254.531984][ T6789]  ? do_raw_spin_unlock+0x11d/0x230
[  254.537203][ T6789]  kobject_add_internal+0x6e0/0xd90
[  254.542597][ T6789]  kobject_init_and_add+0x128/0x190
[  254.547809][ T6789]  ? lockdep_softirqs_off+0x430/0x430
[  254.553289][ T6789]  ? kobject_add+0x230/0x230
[  254.557892][ T6789]  ? __init_swait_queue_head+0xa5/0x150
[  254.563538][ T6789]  gfs2_sys_fs_add+0x24f/0x4b0
[  254.568314][ T6789]  ? gfs2_recover_set+0x240/0x240
[  254.573349][ T6789]  ? snprintf+0xe5/0x140
[  254.577600][ T6789]  ? __free_pages+0x95/0x1a0
[  254.582184][ T6789]  ? vscnprintf+0x80/0x80
[  254.586709][ T6789]  gfs2_fill_super+0x120f/0x1f00
[  254.592023][ T6789]  ? gfs2_reconfigure+0xd30/0xd30
[  254.597150][ T6789]  ? sb_set_blocksize+0xa5/0xe0
[  254.602090][ T6789]  get_tree_bdev+0x3f1/0x610
[  254.606799][ T6789]  ? gfs2_reconfigure+0xd30/0xd30
[  254.612099][ T6789]  gfs2_get_tree+0x4d/0x1e0
[  254.616724][ T6789]  vfs_get_tree+0x88/0x270
[  254.621301][ T6789]  do_new_mount+0x24a/0xa40
[  254.626183][ T6789]  __se_sys_mount+0x2e3/0x3d0
[  254.630973][ T6789]  ? __x64_sys_mount+0xc0/0xc0
[  254.636496][ T6789]  ? lockdep_hardirqs_on+0x94/0x140
[  254.641891][ T6789]  ? __x64_sys_mount+0x1c/0xc0
[  254.646957][ T6789]  do_syscall_64+0x4c/0xa0
[  254.651400][ T6789]  ? clear_bhb_loop+0x30/0x80
[  254.656078][ T6789]  ? clear_bhb_loop+0x30/0x80
[  254.661111][ T6789]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  254.667013][ T6789] RIP: 0033:0x7fee58e0cb8a
[  254.671442][ T6789] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  254.691235][ T6789] RSP: 002b:00007fee58050e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  254.699660][ T6789] RAX: ffffffffffffffda RBX: 00007fee58050ee0 RCX: 00007fee58e0cb8a
[  254.707750][ T6789] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fee58050ea0
[  254.715817][ T6789] RBP: 0000200000000400 R08: 00007fee58050ee0 R09: 0000000000000000
[  254.723794][ T6789] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  254.732579][ T6789] R13: 00007fee58050ea0 R14: 00000000000125bb R15: 00002000000004c0
[  254.741049][ T6789]  </TASK>
[  254.980944][ T6789] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  255.002590][ T6789] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  255.010586][   T27] task:syz.2.42        state:D stack:24784 pid: 5487 ppid:  4966 flags:0x00004004
[  255.312836][   T27] Call Trace:
[  255.334788][   T27]  <TASK>
[  255.337883][   T27]  __schedule+0x11ef/0x43c0
[  255.344301][   T27]  ? rcu_read_lock_sched_held+0x86/0x110
[  255.350058][   T27]  ? __bpf_trace_rcu_stall_warning+0x10/0x10
[  255.565074][ T1420] ieee802154 phy0 wpan0: encryption failed: -22
[  255.571618][ T1420] ieee802154 phy1 wpan1: encryption failed: -22
[  255.589089][   T27]  ? rcu_is_watching+0x11/0xa0
[  255.599236][   T27]  ? release_firmware_map_entry+0x190/0x190
[  255.612308][   T27]  ? cpufreq_update_util+0x91/0x230
[  255.617945][   T27]  schedule+0x11b/0x1e0
[  255.622503][   T27]  schedule_timeout+0xbd/0x2d0
[  255.633115][   T27]  ? console_conditional_schedule+0x40/0x40
[  255.639692][   T27]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  255.652905][   T27]  ? lock_chain_count+0x20/0x20
[  255.658949][   T27]  ? lock_chain_count+0x20/0x20
[  255.669523][   T27]  ? _raw_spin_unlock_irq+0x1f/0x40
[  255.675130][   T27]  ? lockdep_hardirqs_on+0x94/0x140
[  255.680714][   T27]  do_wait_for_common+0x2a2/0x450
[  255.692731][   T27]  ? console_conditional_schedule+0x40/0x40
[  255.699277][   T27]  ? wait_for_completion_killable_timeout+0x60/0x60
[  255.711806][   T27]  ? _raw_spin_lock_irq+0xb7/0xf0
[  255.717464][   T27]  ? try_to_wake_up+0x6cf/0x1050
[  255.722431][   T27]  wait_for_completion+0x48/0x60
[  255.732898][   T27]  kthread_stop+0x16e/0x540
[  255.737687][   T27]  gfs2_make_fs_ro+0x157/0x620
[  255.742700][   T27]  ? gfs2_dinode_out+0xb00/0xb00
[  255.754151][   T27]  ? do_raw_spin_lock+0x128/0x2f0
[  255.759219][   T27]  ? __rwlock_init+0x140/0x140
[  255.768747][   T27]  ? do_raw_spin_unlock+0x11d/0x230
[  255.775437][   T27]  ? gfs2_glock_is_locked_by_me+0x16f/0x190
[  255.781650][   T27]  gfs2_withdraw+0x610/0x1490
[  255.791606][   T27]  ? gfs2_lm+0x240/0x240
[  255.798714][   T27]  ? gfs2_meta_buffer+0x310/0x310
[  255.809273][   T27]  ? from_kuid_munged+0x6b0/0x6b0
[  255.815531][   T27]  gfs2_metatype_check_ii+0x74/0x90
[  255.820990][   T27]  gfs2_quota_init+0xca5/0xea0
[  255.830268][   T27]  ? qd_get+0x5f0/0x5f0
[  255.835733][   T27]  gfs2_make_fs_rw+0x414/0x580
[  255.840505][   T27]  ? _raw_spin_unlock+0x24/0x40
[  255.850476][   T27]  ? gfs2_glock_nq+0xcb0/0x1550
[  255.857437][   T27]  ? gfs2_jdesc_check+0x290/0x290
[  255.862501][   T27]  gfs2_fill_super+0x1837/0x1f00
[  255.868060][   T27]  ? gfs2_reconfigure+0xd30/0xd30
[  255.873095][   T27]  ? gfs2_glock_nq_num+0x82/0x1b0
[  255.878778][   T27]  ? gfs2_freeze_lock+0x52/0xc0
[  255.883902][   T27]  ? sb_set_blocksize+0xa5/0xe0
[  255.889178][   T27]  get_tree_bdev+0x3f1/0x610
[  255.894071][   T27]  ? gfs2_reconfigure+0xd30/0xd30
[  255.899412][   T27]  gfs2_get_tree+0x4d/0x1e0
[  255.905307][   T27]  vfs_get_tree+0x88/0x270
[  255.909973][   T27]  do_new_mount+0x24a/0xa40
[  255.915240][   T27]  __se_sys_mount+0x2e3/0x3d0
[  255.920274][   T27]  ? __x64_sys_mount+0xc0/0xc0
[  255.925824][   T27]  ? lockdep_hardirqs_on+0x94/0x140
[  255.931323][   T27]  ? __x64_sys_mount+0x1c/0xc0
[  255.936252][   T27]  do_syscall_64+0x4c/0xa0
[  255.940900][   T27]  ? clear_bhb_loop+0x30/0x80
[  255.945973][   T27]  ? clear_bhb_loop+0x30/0x80
[  255.950714][   T27]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  255.957020][   T27] RIP: 0033:0x7f3348234b8a
[  255.961805][   T27] RSP: 002b:00007f3347499e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  255.970536][   T27] RAX: ffffffffffffffda RBX: 00007f3347499ee0 RCX: 00007f3348234b8a
[  255.978613][   T27] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f3347499ea0
[  255.986704][   T27] RBP: 0000200000000400 R08: 00007f3347499ee0 R09: 0000000000000000
[  255.994914][   T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  256.002888][   T27] R13: 00007f3347499ea0 R14: 00000000000125bb R15: 00002000000004c0
[  256.011024][   T27]  </TASK>
[  256.014149][   T27] INFO: task gfs2_quotad:5510 blocked for more than 144 seconds.
[  256.022242][   T27]       Not tainted syzkaller #0
[  256.029796][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  256.038809][   T27] task:gfs2_quotad     state:D stack:26704 pid: 5510 ppid:     2 flags:0x00004000
[  256.040482][ T6795] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  256.048472][   T27] Call Trace:
[  256.048483][   T27]  <TASK>
[  256.048492][   T27]  __schedule+0x11ef/0x43c0
[  256.048528][   T27]  ? lock_chain_count+0x20/0x20
[  256.048548][   T27]  ? release_firmware_map_entry+0x190/0x190
[  256.048564][   T27]  ? _raw_spin_unlock_irqrestore+0x82/0x120
[  256.048579][   T27]  ? lockdep_hardirqs_on+0x94/0x140
[  256.048596][   T27]  ? _raw_spin_unlock_irqrestore+0xc1/0x120
[  256.048613][   T27]  schedule+0x11b/0x1e0
[  256.056271][ T6795] CPU: 0 PID: 6795 Comm: syz.0.507 Not tainted syzkaller #0
[  256.056294][ T6795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  256.056302][ T6795] Call Trace:
[  256.056310][ T6795]  <TASK>
[  256.059658][   T27]  bit_wait+0xd/0xc0
[  256.062561][ T6795]  dump_stack_lvl+0x188/0x250
[  256.062580][ T6795]  ? show_regs_print_info+0x20/0x20
[  256.062592][ T6795]  ? load_image+0x400/0x400
[  256.062612][ T6795]  sysfs_create_dir_ns+0x26a/0x290
[  256.062628][ T6795]  ? sysfs_warn_dup+0xa0/0xa0
[  256.062642][ T6795]  ? do_raw_spin_unlock+0x11d/0x230
[  256.062659][ T6795]  kobject_add_internal+0x6e0/0xd90
[  256.062680][ T6795]  kobject_init_and_add+0x128/0x190
[  256.062694][ T6795]  ? lockdep_softirqs_off+0x430/0x430
[  256.062713][ T6795]  ? kobject_add+0x230/0x230
[  256.062731][ T6795]  ? __init_swait_queue_head+0xa5/0x150
[  256.062750][ T6795]  gfs2_sys_fs_add+0x24f/0x4b0
[  256.062769][ T6795]  ? gfs2_recover_set+0x240/0x240
[  256.062783][ T6795]  ? snprintf+0xe5/0x140
[  256.062796][ T6795]  ? __free_pages+0x95/0x1a0
[  256.062813][ T6795]  ? vscnprintf+0x80/0x80
[  256.062835][ T6795]  gfs2_fill_super+0x120f/0x1f00
[  256.062862][ T6795]  ? gfs2_reconfigure+0xd30/0xd30
[  256.062896][ T6795]  ? sb_set_blocksize+0xa5/0xe0
[  256.062912][ T6795]  get_tree_bdev+0x3f1/0x610
[  256.062930][ T6795]  ? gfs2_reconfigure+0xd30/0xd30
[  256.062947][ T6795]  gfs2_get_tree+0x4d/0x1e0
[  256.062964][ T6795]  vfs_get_tree+0x88/0x270
[  256.062978][ T6795]  do_new_mount+0x24a/0xa40
[  256.062995][ T6795]  __se_sys_mount+0x2e3/0x3d0
[  256.063012][ T6795]  ? __x64_sys_mount+0xc0/0xc0
[  256.063029][ T6795]  ? lockdep_hardirqs_on+0x94/0x140
[  256.063044][ T6795]  ? __x64_sys_mount+0x1c/0xc0
[  256.063059][ T6795]  do_syscall_64+0x4c/0xa0
[  256.063072][ T6795]  ? clear_bhb_loop+0x30/0x80
[  256.063086][ T6795]  ? clear_bhb_loop+0x30/0x80
[  256.067908][   T27]  out_of_line_wait_on_bit+0x173/0x230
[  256.072567][ T6795]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  256.085280][   T27]  ? out_of_line_wait_on_bit_lock+0x190/0x190
[  256.089838][ T6795] RIP: 0033:0x7f0c3ee8bb8a
[  256.089857][ T6795] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  256.089869][ T6795] RSP: 002b:00007f0c3e0f0e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  256.089890][ T6795] RAX: ffffffffffffffda RBX: 00007f0c3e0f0ee0 RCX: 00007f0c3ee8bb8a
[  256.089900][ T6795] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f0c3e0f0ea0
[  256.089910][ T6795] RBP: 0000200000000400 R08: 00007f0c3e0f0ee0 R09: 0000000000000000
[  256.109143][   T27]  ? __wait_on_bit+0x170/0x170
[  256.117843][ T6795] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  256.117862][ T6795] R13: 00007f0c3e0f0ea0 R14: 00000000000125bb R15: 00002000000004c0
[  256.117880][ T6795]  </TASK>
[  256.118657][ T6795] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  256.122831][   T27]  ? bit_waitqueue+0x30/0x30
[  256.124199][ T6795] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  256.409255][   T27]  ? do_raw_spin_unlock+0x11d/0x230
[  256.414879][   T27]  __gfs2_glock_dq+0x6b5/0xa10
[  256.419985][   T27]  gfs2_glock_dq_uninit+0x4f/0x110
[  256.425343][   T27]  gfs2_statfs_sync+0x718/0x7c0
[  256.430348][   T27]  ? update_statfs+0x320/0x320
[  256.435652][   T27]  ? finish_task_switch+0x12f/0x640
[  256.441145][   T27]  ? gfs2_statfs_sync+0x15b/0x7c0
[  256.446827][   T27]  gfs2_quotad+0x372/0x890
[  256.451405][   T27]  ? gfs2_wake_up_statfs+0xc0/0xc0
[  256.457000][   T27]  ? _raw_spin_unlock_irqrestore+0x82/0x120
[  256.462935][   T27]  ? init_wait_entry+0xd0/0xd0
[  256.467925][   T27]  ? _raw_spin_unlock_irqrestore+0xc1/0x120
[  256.474640][   T27]  ? __kthread_parkme+0x157/0x1b0
[  256.479772][   T27]  kthread+0x436/0x520
[  256.483909][   T27]  ? gfs2_wake_up_statfs+0xc0/0xc0
[  256.489022][   T27]  ? kthread_blkcg+0xd0/0xd0
[  256.493702][   T27]  ret_from_fork+0x1f/0x30
[  256.498229][   T27]  </TASK>
[  256.501271][   T27] 
[  256.501271][   T27] Showing all locks held in the system:
[  256.509160][   T27] 1 lock held by khungtaskd/27:
[  256.509890][ T6801] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  256.515839][   T27]  #0: ffffffff8c31eb20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[  256.521495][ T6801] CPU: 0 PID: 6801 Comm: syz.1.509 Not tainted syzkaller #0
[  256.530932][   T27] 1 lock held by udevd/3560:
[  256.538282][ T6801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  256.538300][ T6801] Call Trace:
[  256.538308][ T6801]  <TASK>
[  256.538314][ T6801]  dump_stack_lvl+0x188/0x250
[  256.538336][ T6801]  ? show_regs_print_info+0x20/0x20
[  256.538349][ T6801]  ? load_image+0x400/0x400
[  256.538369][ T6801]  sysfs_create_dir_ns+0x26a/0x290
[  256.543041][   T27]  #0: 
[  256.553299][ T6801]  ? sysfs_warn_dup+0xa0/0xa0
[  256.553329][ T6801]  ? do_raw_spin_unlock+0x11d/0x230
[  256.553347][ T6801]  kobject_add_internal+0x6e0/0xd90
[  256.553364][ T6801]  kobject_init_and_add+0x128/0x190
[  256.553377][ T6801]  ? lockdep_softirqs_off+0x430/0x430
[  256.553395][ T6801]  ? kobject_add+0x230/0x230
[  256.553411][ T6801]  ? __init_swait_queue_head+0xa5/0x150
[  256.553428][ T6801]  gfs2_sys_fs_add+0x24f/0x4b0
[  256.553446][ T6801]  ? gfs2_recover_set+0x240/0x240
[  256.553460][ T6801]  ? snprintf+0xe5/0x140
[  256.553471][ T6801]  ? __free_pages+0x95/0x1a0
[  256.553489][ T6801]  ? vscnprintf+0x80/0x80
[  256.553508][ T6801]  gfs2_fill_super+0x120f/0x1f00
[  256.553532][ T6801]  ? gfs2_reconfigure+0xd30/0xd30
[  256.553554][ T6801]  ? sb_set_blocksize+0xa5/0xe0
[  256.553568][ T6801]  get_tree_bdev+0x3f1/0x610
[  256.553584][ T6801]  ? gfs2_reconfigure+0xd30/0xd30
[  256.553599][ T6801]  gfs2_get_tree+0x4d/0x1e0
[  256.553616][ T6801]  vfs_get_tree+0x88/0x270
[  256.553631][ T6801]  do_new_mount+0x24a/0xa40
[  256.562393][   T27] ffff8880206e8518
[  256.564995][ T6801]  __se_sys_mount+0x2e3/0x3d0
[  256.565020][ T6801]  ? __x64_sys_mount+0xc0/0xc0
[  256.565036][ T6801]  ? lockdep_hardirqs_on+0x94/0x140
[  256.565049][ T6801]  ? __x64_sys_mount+0x1c/0xc0
[  256.565063][ T6801]  do_syscall_64+0x4c/0xa0
[  256.565075][ T6801]  ? clear_bhb_loop+0x30/0x80
[  256.565090][ T6801]  ? clear_bhb_loop+0x30/0x80
[  256.565104][ T6801]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  256.565118][ T6801] RIP: 0033:0x7f5a08da6b8a
[  256.565134][ T6801] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  256.565146][ T6801] RSP: 002b:00007f5a0800be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  256.565161][ T6801] RAX: ffffffffffffffda RBX: 00007f5a0800bee0 RCX: 00007f5a08da6b8a
[  256.565171][ T6801] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f5a0800bea0
[  256.565182][ T6801] RBP: 0000200000000400 R08: 00007f5a0800bee0 R09: 0000000000000000
[  256.565192][ T6801] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  256.565202][ T6801] R13: 00007f5a0800bea0 R14: 00000000000125bb R15: 00002000000004c0
[  256.565222][ T6801]  </TASK>
[  256.566441][ T6801] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  256.575947][ T6809] set_capacity_and_notify: 2 callbacks suppressed
[  256.575960][ T6809] loop3: detected capacity change from 0 to 32768
[  256.580414][ T6801] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  256.603369][ T6808] loop4: detected capacity change from 0 to 32768
[  256.655332][ T6797] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  256.851030][ T6797] CPU: 0 PID: 6797 Comm: syz.5.508 Not tainted syzkaller #0
[  256.858315][ T6797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  256.868725][ T6797] Call Trace:
[  256.870702][ T6811] loop0: detected capacity change from 0 to 32768
[  256.872008][ T6797]  <TASK>
[  256.881514][ T6797]  dump_stack_lvl+0x188/0x250
[  256.886211][ T6797]  ? show_regs_print_info+0x20/0x20
[  256.889238][   T27]  (&disk->open_mutex){+.+.}-{3:3}
[  256.891403][ T6797]  ? load_image+0x400/0x400
[  256.891433][ T6797]  sysfs_create_dir_ns+0x26a/0x290
[  256.906867][ T6797]  ? sysfs_warn_dup+0xa0/0xa0
[  256.908251][   T27] , at: blkdev_get_by_dev+0x157/0xa60
[  256.911642][ T6797]  ? do_raw_spin_unlock+0x11d/0x230
[  256.911676][ T6797]  kobject_add_internal+0x6e0/0xd90
[  256.911698][ T6797]  kobject_init_and_add+0x128/0x190
[  256.911712][ T6797]  ? lockdep_softirqs_off+0x430/0x430
[  256.911731][ T6797]  ? kobject_add+0x230/0x230
[  256.943076][ T6797]  ? __init_swait_queue_head+0xa5/0x150
[  256.948876][ T6797]  gfs2_sys_fs_add+0x24f/0x4b0
[  256.954041][ T6797]  ? gfs2_recover_set+0x240/0x240
[  256.957631][   T27] 2 locks held by getty/3944:
[  256.959086][ T6797]  ? snprintf+0xe5/0x140
[  256.959107][ T6797]  ? __free_pages+0x95/0x1a0
[  256.959124][ T6797]  ? vscnprintf+0x80/0x80
[  256.959144][ T6797]  gfs2_fill_super+0x120f/0x1f00
[  256.959171][ T6797]  ? gfs2_reconfigure+0xd30/0xd30
[  256.987099][ T6797]  ? sb_set_blocksize+0xa5/0xe0
[  256.991959][ T6797]  get_tree_bdev+0x3f1/0x610
[  256.993489][   T27]  #0: 
[  256.996557][ T6797]  ? gfs2_reconfigure+0xd30/0xd30
[  256.996580][ T6797]  gfs2_get_tree+0x4d/0x1e0
[  256.996597][ T6797]  vfs_get_tree+0x88/0x270
[  256.996614][ T6797]  do_new_mount+0x24a/0xa40
[  257.009754][   T27] ffff88814cf42098
[  257.013565][ T6797]  __se_sys_mount+0x2e3/0x3d0
[  257.013593][ T6797]  ? __x64_sys_mount+0xc0/0xc0
[  257.013610][ T6797]  ? lockdep_hardirqs_on+0x94/0x140
[  257.013624][ T6797]  ? __x64_sys_mount+0x1c/0xc0
[  257.013640][ T6797]  do_syscall_64+0x4c/0xa0
[  257.013652][ T6797]  ? clear_bhb_loop+0x30/0x80
[  257.038027][   T27]  (
[  257.041697][ T6797]  ? clear_bhb_loop+0x30/0x80
[  257.041728][ T6797]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  257.041744][ T6797] RIP: 0033:0x7f44b1b26b8a
[  257.041759][ T6797] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
[  257.041770][ T6797] RSP: 002b:00007f44b0d8be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  257.041787][ T6797] RAX: ffffffffffffffda RBX: 00007f44b0d8bee0 RCX: 00007f44b1b26b8a
[  257.041797][ T6797] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f44b0d8bea0
[  257.081455][   T27] &tty->ldisc_sem
[  257.088799][ T6797] RBP: 0000200000000400 R08: 00007f44b0d8bee0 R09: 0000000000000000
[  257.088814][ T6797] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  257.088822][ T6797] R13: 00007f44b0d8bea0 R14: 00000000000125bb R15: 00002000000004c0
[  257.088842][ T6797]  </TASK>
[  257.089520][ T6797] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  257.127826][   T27] ){++++}-{0:0}
[  257.134069][ T6797] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  257.169828][   T27] , at: tty_ldisc_ref_wait+0x21/0x70
[  257.175503][   T27]  #1: ffffc90002cf62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5df/0x1a70
[  257.186118][   T27] 3 locks held by kworker/1:4/4234:
[  257.191726][   T27]  #0: ffff888016c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x761/0x1010
[  257.203089][   T27]  #1: ffffc90002fafd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010
[  257.217219][   T27]  #2: ffffffff8c3235a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d1/0x750
[  257.228829][   T27] 2 locks held by kworker/1:6/4275:
[  257.234356][   T27]  #0: ffff888016c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x761/0x1010
[  257.245614][   T27]  #1: ffffc9000307fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010
[  257.258723][   T27] 3 locks held by kworker/0:18/4944:
[  257.264349][   T27]  #0: ffff888016c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x761/0x1010
[  257.274853][   T27]  #1: ffffc90002effd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010
[  257.287389][   T27]  #2: ffffffff8c3235a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a5/0x750
[  257.298978][   T27] 1 lock held by syz.2.42/5487:
[  257.303905][   T27]  #0: ffff888076d120e0 (&type->s_umount_key#53/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950
[  257.314520][   T27] 2 locks held by syz.5.508/6797:
[  257.319535][   T27]  #0: ffff8880206e8518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[  257.329418][   T27]  #1: ffff8880205ff468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[  257.339522][   T27] 2 locks held by syz.1.509/6801:
[  257.345024][   T27]  #0: ffff8880202aa118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[  257.355657][   T27]  #1: ffff8881476a3468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[  257.364752][   T27] 2 locks held by syz.4.513/6808:
[  257.369806][   T27]  #0: ffff8880202b7518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[  257.379632][   T27]  #1: ffff8880205fc468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[  257.388726][   T27] 2 locks held by syz.3.514/6809:
[  257.394369][   T27]  #0: ffff8880202b5918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[  257.403899][   T27]  #1: ffff8880205f9468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[  257.412985][   T27] 2 locks held by syz.0.515/6811:
[  257.418235][   T27]  #0: ffff8880202a8518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[  257.428485][   T27]  #1: ffff8881476a0468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[  257.437913][   T27] 
[  257.440388][   T27] =============================================
[  257.440388][   T27] 
[  257.448885][   T27] NMI backtrace for cpu 0
[  257.453337][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[  257.460630][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  257.470783][   T27] Call Trace:
[  257.474163][   T27]  <TASK>
[  257.477092][   T27]  dump_stack_lvl+0x188/0x250
[  257.481868][   T27]  ? show_regs_print_info+0x20/0x20
[  257.487064][   T27]  ? load_image+0x400/0x400
[  257.491670][   T27]  ? nmi_cpu_backtrace+0x1b2/0x3d0
[  257.497073][   T27]  nmi_cpu_backtrace+0x3a2/0x3d0
[  257.502126][   T27]  ? nmi_trigger_cpumask_backtrace+0x280/0x280
[  257.508416][   T27]  ? _printk+0xda/0x130
[  257.513318][   T27]  ? load_image+0x400/0x400
[  257.517856][   T27]  ? load_image+0x400/0x400
[  257.523073][   T27]  ? arch_trigger_cpumask_backtrace+0x10/0x10
[  257.529577][   T27]  nmi_trigger_cpumask_backtrace+0x163/0x280
[  257.536190][   T27]  watchdog+0xe0f/0xe50
[  257.541053][   T27]  kthread+0x436/0x520
[  257.545462][   T27]  ? hungtask_pm_notify+0x40/0x40
[  257.551773][   T27]  ? kthread_blkcg+0xd0/0xd0
[  257.556902][   T27]  ret_from_fork+0x1f/0x30
[  257.561839][   T27]  </TASK>
[  257.566416][   T27] Sending NMI from CPU 0 to CPUs 1:
[  257.572106][    C1] NMI backtrace for cpu 1 skipped: idling at default_idle+0xb/0x10
[  257.578876][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  257.588621][   T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[  257.596419][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  257.606974][   T27] Call Trace:
[  257.610362][   T27]  <TASK>
[  257.613794][   T27]  dump_stack_lvl+0x188/0x250
[  257.618464][   T27]  ? show_regs_print_info+0x20/0x20
[  257.624019][   T27]  ? load_image+0x400/0x400
[  257.628757][   T27]  panic+0x2e5/0x810
[  257.632750][   T27]  ? schedule_preempt_disabled+0x20/0x20
[  257.638532][   T27]  ? bpf_jit_dump+0xd0/0xd0
[  257.643201][   T27]  ? nmi_trigger_cpumask_backtrace+0x260/0x280
[  257.649514][   T27]  watchdog+0xe4e/0xe50
[  257.653774][   T27]  kthread+0x436/0x520
[  257.658118][   T27]  ? hungtask_pm_notify+0x40/0x40
[  257.664369][   T27]  ? kthread_blkcg+0xd0/0xd0
[  257.671672][   T27]  ret_from_fork+0x1f/0x30
[  257.679131][   T27]  </TASK>
[  257.685466][   T27] Kernel Offset: disabled
[  257.691886][   T27] Rebooting in 86400 seconds..