R08: 00007ffcd5d460f0 R09: 0000000000000084
[  270.057604][ T4674] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  270.065562][ T4674] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  270.073533][ T4674]  </TASK>
[  270.081316][ T4674] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.094856][ T4674] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.370160][ T4675] loop1: detected capacity change from 0 to 32768
[  270.381758][ T4675] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.389156][ T4675] CPU: 1 PID: 4675 Comm: syz.1.209 Not tainted syzkaller #0
[  270.396449][ T4675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  270.406517][ T4675] Call Trace:
[  270.409807][ T4675]  <TASK>
[  270.412748][ T4675]  dump_stack_lvl+0x168/0x22e
[  270.417450][ T4675]  ? show_regs_print_info+0x12/0x12
[  270.422671][ T4675]  ? load_image+0x3b0/0x3b0
[  270.427202][ T4675]  sysfs_create_dir_ns+0x252/0x280
[  270.432335][ T4675]  ? sysfs_warn_dup+0xa0/0xa0
[  270.437031][ T4675]  ? kobject_set_name_vargs+0x5d/0x110
[  270.442504][ T4675]  ? do_raw_spin_unlock+0x11d/0x230
[  270.447720][ T4675]  kobject_add_internal+0x6b8/0xc80
[  270.452917][ T4675]  kobject_init_and_add+0x122/0x190
[  270.458104][ T4675]  ? lockdep_softirqs_off+0x420/0x420
[  270.463469][ T4675]  ? kobject_add+0x210/0x210
[  270.468052][ T4675]  ? __init_swait_queue_head+0xa5/0x150
[  270.473622][ T4675]  gfs2_sys_fs_add+0x234/0x480
[  270.478384][ T4675]  ? gfs2_recover_set+0x240/0x240
[  270.483402][ T4675]  ? snprintf+0xd7/0x120
[  270.487638][ T4675]  ? vscnprintf+0x80/0x80
[  270.491966][ T4675]  gfs2_fill_super+0x126f/0x1f80
[  270.496909][ T4675]  ? gfs2_reconfigure+0xcd0/0xcd0
[  270.501935][ T4675]  ? sb_set_blocksize+0xa5/0xe0
[  270.506779][ T4675]  get_tree_bdev+0x3f1/0x610
[  270.511372][ T4675]  ? gfs2_reconfigure+0xcd0/0xcd0
[  270.516391][ T4675]  gfs2_get_tree+0x4d/0x1e0
[  270.520894][ T4675]  vfs_get_tree+0x88/0x270
[  270.525306][ T4675]  do_new_mount+0x24a/0xa40
[  270.529806][ T4675]  __se_sys_mount+0x2d6/0x3c0
[  270.534473][ T4675]  ? __x64_sys_mount+0xc0/0xc0
[  270.539226][ T4675]  ? lockdep_hardirqs_on+0x94/0x140
[  270.544413][ T4675]  ? __x64_sys_mount+0x1c/0xc0
[  270.549350][ T4675]  do_syscall_64+0x4c/0xa0
[  270.553766][ T4675]  ? clear_bhb_loop+0x60/0xb0
[  270.558443][ T4675]  ? clear_bhb_loop+0x60/0xb0
[  270.563116][ T4675]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  270.569025][ T4675] RIP: 0033:0x7fe407f90eea
[  270.573447][ T4675] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  270.593053][ T4675] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.601464][ T4675] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  270.609511][ T4675] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  270.617472][ T4675] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  270.625433][ T4675] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  270.633393][ T4675] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  270.641366][ T4675]  </TASK>
[  270.649440][ T4675] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.663717][ T4675] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.932240][ T4676] loop1: detected capacity change from 0 to 32768
[  270.944991][ T4676] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.952842][ T4676] CPU: 1 PID: 4676 Comm: syz.1.210 Not tainted syzkaller #0
[  270.960149][ T4676] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  270.970222][ T4676] Call Trace:
[  270.973532][ T4676]  <TASK>
[  270.976493][ T4676]  dump_stack_lvl+0x168/0x22e
[  270.981213][ T4676]  ? show_regs_print_info+0x12/0x12
[  270.986438][ T4676]  ? load_image+0x3b0/0x3b0
[  270.990971][ T4676]  sysfs_create_dir_ns+0x252/0x280
[  270.996112][ T4676]  ? sysfs_warn_dup+0xa0/0xa0
[  271.000798][ T4676]  ? kobject_set_name_vargs+0x5d/0x110
[  271.006270][ T4676]  ? do_raw_spin_unlock+0x11d/0x230
[  271.011491][ T4676]  kobject_add_internal+0x6b8/0xc80
[  271.016703][ T4676]  kobject_init_and_add+0x122/0x190
[  271.021904][ T4676]  ? lockdep_softirqs_off+0x420/0x420
[  271.027274][ T4676]  ? kobject_add+0x210/0x210
[  271.031859][ T4676]  ? __init_swait_queue_head+0xa5/0x150
[  271.037402][ T4676]  gfs2_sys_fs_add+0x234/0x480
[  271.042160][ T4676]  ? gfs2_recover_set+0x240/0x240
[  271.047178][ T4676]  ? snprintf+0xd7/0x120
[  271.051413][ T4676]  ? vscnprintf+0x80/0x80
[  271.055740][ T4676]  gfs2_fill_super+0x126f/0x1f80
[  271.060681][ T4676]  ? gfs2_reconfigure+0xcd0/0xcd0
[  271.065709][ T4676]  ? sb_set_blocksize+0xa5/0xe0
[  271.070558][ T4676]  get_tree_bdev+0x3f1/0x610
[  271.075143][ T4676]  ? gfs2_reconfigure+0xcd0/0xcd0
[  271.080167][ T4676]  gfs2_get_tree+0x4d/0x1e0
[  271.084666][ T4676]  vfs_get_tree+0x88/0x270
[  271.089074][ T4676]  do_new_mount+0x24a/0xa40
[  271.093578][ T4676]  __se_sys_mount+0x2d6/0x3c0
[  271.098336][ T4676]  ? __x64_sys_mount+0xc0/0xc0
[  271.103092][ T4676]  ? lockdep_hardirqs_on+0x94/0x140
[  271.108278][ T4676]  ? __x64_sys_mount+0x1c/0xc0
[  271.113033][ T4676]  do_syscall_64+0x4c/0xa0
[  271.117445][ T4676]  ? clear_bhb_loop+0x60/0xb0
[  271.122114][ T4676]  ? clear_bhb_loop+0x60/0xb0
[  271.126790][ T4676]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  271.132673][ T4676] RIP: 0033:0x7fe407f90eea
[  271.137077][ T4676] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  271.156672][ T4676] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  271.165077][ T4676] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  271.173036][ T4676] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  271.180996][ T4676] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  271.188955][ T4676] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  271.196913][ T4676] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  271.204978][ T4676]  </TASK>
[  271.211153][ T4676] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  271.225451][ T4676] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  271.509665][ T4677] loop1: detected capacity change from 0 to 32768
[  271.528082][ T4677] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  271.535619][ T4677] CPU: 0 PID: 4677 Comm: syz.1.211 Not tainted syzkaller #0
[  271.542908][ T4677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  271.552952][ T4677] Call Trace:
[  271.556221][ T4677]  <TASK>
[  271.559142][ T4677]  dump_stack_lvl+0x168/0x22e
[  271.563825][ T4677]  ? show_regs_print_info+0x12/0x12
[  271.569022][ T4677]  ? load_image+0x3b0/0x3b0
[  271.573525][ T4677]  sysfs_create_dir_ns+0x252/0x280
[  271.578640][ T4677]  ? sysfs_warn_dup+0xa0/0xa0
[  271.583309][ T4677]  ? kobject_set_name_vargs+0x5d/0x110
[  271.588762][ T4677]  ? do_raw_spin_unlock+0x11d/0x230
[  271.593962][ T4677]  kobject_add_internal+0x6b8/0xc80
[  271.599156][ T4677]  kobject_init_and_add+0x122/0x190
[  271.604341][ T4677]  ? lockdep_softirqs_off+0x420/0x420
[  271.609706][ T4677]  ? kobject_add+0x210/0x210
[  271.614298][ T4677]  ? __init_swait_queue_head+0xa5/0x150
[  271.619838][ T4677]  gfs2_sys_fs_add+0x234/0x480
[  271.624598][ T4677]  ? gfs2_recover_set+0x240/0x240
[  271.629613][ T4677]  ? snprintf+0xd7/0x120
[  271.633852][ T4677]  ? vscnprintf+0x80/0x80
[  271.638177][ T4677]  gfs2_fill_super+0x126f/0x1f80
[  271.643123][ T4677]  ? gfs2_reconfigure+0xcd0/0xcd0
[  271.648149][ T4677]  ? sb_set_blocksize+0xa5/0xe0
[  271.652992][ T4677]  get_tree_bdev+0x3f1/0x610
[  271.657575][ T4677]  ? gfs2_reconfigure+0xcd0/0xcd0
[  271.662599][ T4677]  gfs2_get_tree+0x4d/0x1e0
[  271.667099][ T4677]  vfs_get_tree+0x88/0x270
[  271.671508][ T4677]  do_new_mount+0x24a/0xa40
[  271.676007][ T4677]  __se_sys_mount+0x2d6/0x3c0
[  271.680679][ T4677]  ? __x64_sys_mount+0xc0/0xc0
[  271.685438][ T4677]  ? lockdep_hardirqs_on+0x94/0x140
[  271.690627][ T4677]  ? __x64_sys_mount+0x1c/0xc0
[  271.695381][ T4677]  do_syscall_64+0x4c/0xa0
[  271.699789][ T4677]  ? clear_bhb_loop+0x60/0xb0
[  271.704455][ T4677]  ? clear_bhb_loop+0x60/0xb0
[  271.709125][ T4677]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  271.715007][ T4677] RIP: 0033:0x7fe407f90eea
[  271.719413][ T4677] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  271.739011][ T4677] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  271.747415][ T4677] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  271.755378][ T4677] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  271.763442][ T4677] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  271.771433][ T4677] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  271.779406][ T4677] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  271.787390][ T4677]  </TASK>
[  271.797219][ T4677] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  271.810646][ T4677] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  272.085596][ T4678] loop1: detected capacity change from 0 to 32768
[  272.094130][ T4678] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.101746][ T4678] CPU: 1 PID: 4678 Comm: syz.1.212 Not tainted syzkaller #0
[  272.109044][ T4678] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  272.119110][ T4678] Call Trace:
[  272.122417][ T4678]  <TASK>
[  272.125357][ T4678]  dump_stack_lvl+0x168/0x22e
[  272.130059][ T4678]  ? show_regs_print_info+0x12/0x12
[  272.135277][ T4678]  ? load_image+0x3b0/0x3b0
[  272.139805][ T4678]  sysfs_create_dir_ns+0x252/0x280
[  272.144943][ T4678]  ? sysfs_warn_dup+0xa0/0xa0
[  272.149633][ T4678]  ? kobject_set_name_vargs+0x5d/0x110
[  272.155110][ T4678]  ? do_raw_spin_unlock+0x11d/0x230
[  272.160331][ T4678]  kobject_add_internal+0x6b8/0xc80
[  272.165550][ T4678]  kobject_init_and_add+0x122/0x190
[  272.170758][ T4678]  ? lockdep_softirqs_off+0x420/0x420
[  272.176147][ T4678]  ? kobject_add+0x210/0x210
[  272.180755][ T4678]  ? __init_swait_queue_head+0xa5/0x150
[  272.186314][ T4678]  gfs2_sys_fs_add+0x234/0x480
[  272.191068][ T4678]  ? gfs2_recover_set+0x240/0x240
[  272.196077][ T4678]  ? snprintf+0xd7/0x120
[  272.200303][ T4678]  ? vscnprintf+0x80/0x80
[  272.204617][ T4678]  gfs2_fill_super+0x126f/0x1f80
[  272.209553][ T4678]  ? gfs2_reconfigure+0xcd0/0xcd0
[  272.214575][ T4678]  ? sb_set_blocksize+0xa5/0xe0
[  272.219410][ T4678]  get_tree_bdev+0x3f1/0x610
[  272.223982][ T4678]  ? gfs2_reconfigure+0xcd0/0xcd0
[  272.228994][ T4678]  gfs2_get_tree+0x4d/0x1e0
[  272.233484][ T4678]  vfs_get_tree+0x88/0x270
[  272.237885][ T4678]  do_new_mount+0x24a/0xa40
[  272.242370][ T4678]  __se_sys_mount+0x2d6/0x3c0
[  272.247028][ T4678]  ? __x64_sys_mount+0xc0/0xc0
[  272.251780][ T4678]  ? lockdep_hardirqs_on+0x94/0x140
[  272.256973][ T4678]  ? __x64_sys_mount+0x1c/0xc0
[  272.261735][ T4678]  do_syscall_64+0x4c/0xa0
[  272.266143][ T4678]  ? clear_bhb_loop+0x60/0xb0
[  272.270842][ T4678]  ? clear_bhb_loop+0x60/0xb0
[  272.275507][ T4678]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  272.281385][ T4678] RIP: 0033:0x7fe407f90eea
[  272.285790][ T4678] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  272.305379][ T4678] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.313787][ T4678] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  272.321758][ T4678] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  272.329723][ T4678] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  272.337683][ T4678] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  272.345638][ T4678] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  272.353602][ T4678]  </TASK>
[  272.357177][ T4678] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  272.370814][ T4678] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  272.666807][ T4679] loop1: detected capacity change from 0 to 32768
[  272.685091][ T4679] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.692668][ T4679] CPU: 0 PID: 4679 Comm: syz.1.213 Not tainted syzkaller #0
[  272.699977][ T4679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  272.710051][ T4679] Call Trace:
[  272.713357][ T4679]  <TASK>
[  272.716300][ T4679]  dump_stack_lvl+0x168/0x22e
[  272.721018][ T4679]  ? show_regs_print_info+0x12/0x12
[  272.726250][ T4679]  ? load_image+0x3b0/0x3b0
[  272.730788][ T4679]  sysfs_create_dir_ns+0x252/0x280
[  272.735916][ T4679]  ? sysfs_warn_dup+0xa0/0xa0
[  272.740608][ T4679]  ? kobject_set_name_vargs+0x5d/0x110
[  272.746084][ T4679]  ? do_raw_spin_unlock+0x11d/0x230
[  272.751303][ T4679]  kobject_add_internal+0x6b8/0xc80
[  272.756522][ T4679]  kobject_init_and_add+0x122/0x190
[  272.761733][ T4679]  ? lockdep_softirqs_off+0x420/0x420
[  272.767135][ T4679]  ? kobject_add+0x210/0x210
[  272.771837][ T4679]  ? __init_swait_queue_head+0xa5/0x150
[  272.777416][ T4679]  gfs2_sys_fs_add+0x234/0x480
[  272.782209][ T4679]  ? gfs2_recover_set+0x240/0x240
[  272.787599][ T4679]  ? snprintf+0xd7/0x120
[  272.791866][ T4679]  ? vscnprintf+0x80/0x80
[  272.796218][ T4679]  gfs2_fill_super+0x126f/0x1f80
[  272.801186][ T4679]  ? gfs2_reconfigure+0xcd0/0xcd0
[  272.806241][ T4679]  ? sb_set_blocksize+0xa5/0xe0
[  272.811108][ T4679]  get_tree_bdev+0x3f1/0x610
[  272.815711][ T4679]  ? gfs2_reconfigure+0xcd0/0xcd0
[  272.821013][ T4679]  gfs2_get_tree+0x4d/0x1e0
[  272.825538][ T4679]  vfs_get_tree+0x88/0x270
[  272.829965][ T4679]  do_new_mount+0x24a/0xa40
[  272.834482][ T4679]  __se_sys_mount+0x2d6/0x3c0
[  272.839146][ T4679]  ? __x64_sys_mount+0xc0/0xc0
[  272.843893][ T4679]  ? lockdep_hardirqs_on+0x94/0x140
[  272.849104][ T4679]  ? __x64_sys_mount+0x1c/0xc0
[  272.853852][ T4679]  do_syscall_64+0x4c/0xa0
[  272.858253][ T4679]  ? clear_bhb_loop+0x60/0xb0
[  272.862913][ T4679]  ? clear_bhb_loop+0x60/0xb0
[  272.867575][ T4679]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  272.873451][ T4679] RIP: 0033:0x7fe407f90eea
[  272.877847][ T4679] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  272.897436][ T4679] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.905835][ T4679] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  272.913789][ T4679] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  272.921758][ T4679] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  272.929723][ T4679] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  272.937673][ T4679] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  272.945638][ T4679]  </TASK>
[  272.957581][ T4679] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  272.970940][ T4679] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  273.278148][ T4680] loop1: detected capacity change from 0 to 32768
[  273.290689][ T4680] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  273.298383][ T4680] CPU: 0 PID: 4680 Comm: syz.1.214 Not tainted syzkaller #0
[  273.305693][ T4680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  273.315763][ T4680] Call Trace:
[  273.319054][ T4680]  <TASK>
[  273.322083][ T4680]  dump_stack_lvl+0x168/0x22e
[  273.326788][ T4680]  ? show_regs_print_info+0x12/0x12
[  273.332013][ T4680]  ? load_image+0x3b0/0x3b0
[  273.336553][ T4680]  sysfs_create_dir_ns+0x252/0x280
[  273.341683][ T4680]  ? sysfs_warn_dup+0xa0/0xa0
[  273.346371][ T4680]  ? kobject_set_name_vargs+0x5d/0x110
[  273.351845][ T4680]  ? do_raw_spin_unlock+0x11d/0x230
[  273.357048][ T4680]  kobject_add_internal+0x6b8/0xc80
[  273.362249][ T4680]  kobject_init_and_add+0x122/0x190
[  273.367441][ T4680]  ? lockdep_softirqs_off+0x420/0x420
[  273.372811][ T4680]  ? kobject_add+0x210/0x210
[  273.377395][ T4680]  ? __init_swait_queue_head+0xa5/0x150
[  273.382937][ T4680]  gfs2_sys_fs_add+0x234/0x480
[  273.387695][ T4680]  ? gfs2_recover_set+0x240/0x240
[  273.392714][ T4680]  ? snprintf+0xd7/0x120
[  273.396951][ T4680]  ? vscnprintf+0x80/0x80
[  273.401280][ T4680]  gfs2_fill_super+0x126f/0x1f80
[  273.406226][ T4680]  ? gfs2_reconfigure+0xcd0/0xcd0
[  273.411251][ T4680]  ? sb_set_blocksize+0xa5/0xe0
[  273.416096][ T4680]  get_tree_bdev+0x3f1/0x610
[  273.420679][ T4680]  ? gfs2_reconfigure+0xcd0/0xcd0
[  273.425698][ T4680]  gfs2_get_tree+0x4d/0x1e0
[  273.430197][ T4680]  vfs_get_tree+0x88/0x270
[  273.434608][ T4680]  do_new_mount+0x24a/0xa40
[  273.439106][ T4680]  __se_sys_mount+0x2d6/0x3c0
[  273.443778][ T4680]  ? __x64_sys_mount+0xc0/0xc0
[  273.448533][ T4680]  ? lockdep_hardirqs_on+0x94/0x140
[  273.453725][ T4680]  ? __x64_sys_mount+0x1c/0xc0
[  273.458477][ T4680]  do_syscall_64+0x4c/0xa0
[  273.462889][ T4680]  ? clear_bhb_loop+0x60/0xb0
[  273.467554][ T4680]  ? clear_bhb_loop+0x60/0xb0
[  273.472221][ T4680]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  273.478105][ T4680] RIP: 0033:0x7fe407f90eea
[  273.482509][ T4680] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  273.502109][ T4680] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  273.510515][ T4680] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  273.518481][ T4680] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  273.526444][ T4680] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  273.534403][ T4680] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  273.542360][ T4680] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  273.550332][ T4680]  </TASK>
[  273.558376][ T4680] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  273.573849][ T4680] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  273.853219][ T4681] loop1: detected capacity change from 0 to 32768
[  273.868667][ T4681] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  273.876188][ T4681] CPU: 0 PID: 4681 Comm: syz.1.215 Not tainted syzkaller #0
[  273.883528][ T4681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  273.893606][ T4681] Call Trace:
[  273.896911][ T4681]  <TASK>
[  273.899856][ T4681]  dump_stack_lvl+0x168/0x22e
[  273.904563][ T4681]  ? show_regs_print_info+0x12/0x12
[  273.909788][ T4681]  ? load_image+0x3b0/0x3b0
[  273.914332][ T4681]  sysfs_create_dir_ns+0x252/0x280
[  273.919469][ T4681]  ? sysfs_warn_dup+0xa0/0xa0
[  273.924166][ T4681]  ? kobject_set_name_vargs+0x5d/0x110
[  273.929732][ T4681]  ? do_raw_spin_unlock+0x11d/0x230
[  273.934958][ T4681]  kobject_add_internal+0x6b8/0xc80
[  273.940166][ T4681]  kobject_init_and_add+0x122/0x190
[  273.945363][ T4681]  ? lockdep_softirqs_off+0x420/0x420
[  273.950732][ T4681]  ? kobject_add+0x210/0x210
[  273.955318][ T4681]  ? __init_swait_queue_head+0xa5/0x150
[  273.960859][ T4681]  gfs2_sys_fs_add+0x234/0x480
[  273.965620][ T4681]  ? gfs2_recover_set+0x240/0x240
[  273.970638][ T4681]  ? snprintf+0xd7/0x120
[  273.974873][ T4681]  ? vscnprintf+0x80/0x80
[  273.979201][ T4681]  gfs2_fill_super+0x126f/0x1f80
[  273.984150][ T4681]  ? gfs2_reconfigure+0xcd0/0xcd0
[  273.989173][ T4681]  ? sb_set_blocksize+0xa5/0xe0
[  273.994040][ T4681]  get_tree_bdev+0x3f1/0x610
[  273.998624][ T4681]  ? gfs2_reconfigure+0xcd0/0xcd0
[  274.003654][ T4681]  gfs2_get_tree+0x4d/0x1e0
[  274.008187][ T4681]  vfs_get_tree+0x88/0x270
[  274.012605][ T4681]  do_new_mount+0x24a/0xa40
[  274.017105][ T4681]  __se_sys_mount+0x2d6/0x3c0
[  274.021782][ T4681]  ? __x64_sys_mount+0xc0/0xc0
[  274.026541][ T4681]  ? lockdep_hardirqs_on+0x94/0x140
[  274.031727][ T4681]  ? __x64_sys_mount+0x1c/0xc0
[  274.036482][ T4681]  do_syscall_64+0x4c/0xa0
[  274.040891][ T4681]  ? clear_bhb_loop+0x60/0xb0
[  274.045561][ T4681]  ? clear_bhb_loop+0x60/0xb0
[  274.050233][ T4681]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  274.056117][ T4681] RIP: 0033:0x7fe407f90eea
[  274.060521][ T4681] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  274.080117][ T4681] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  274.088520][ T4681] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  274.096480][ T4681] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  274.104440][ T4681] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  274.112399][ T4681] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  274.120358][ T4681] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  274.128330][ T4681]  </TASK>
[  274.138874][ T4681] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  274.152359][ T4681] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  274.404397][ T4682] loop1: detected capacity change from 0 to 32768
[  274.413765][ T4682] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  274.421342][ T4682] CPU: 0 PID: 4682 Comm: syz.1.216 Not tainted syzkaller #0
[  274.428648][ T4682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  274.438722][ T4682] Call Trace:
[  274.442013][ T4682]  <TASK>
[  274.444963][ T4682]  dump_stack_lvl+0x168/0x22e
[  274.449673][ T4682]  ? show_regs_print_info+0x12/0x12
[  274.454897][ T4682]  ? load_image+0x3b0/0x3b0
[  274.459430][ T4682]  sysfs_create_dir_ns+0x252/0x280
[  274.464570][ T4682]  ? sysfs_warn_dup+0xa0/0xa0
[  274.469276][ T4682]  ? kobject_set_name_vargs+0x5d/0x110
[  274.474751][ T4682]  ? do_raw_spin_unlock+0x11d/0x230
[  274.479974][ T4682]  kobject_add_internal+0x6b8/0xc80
[  274.485194][ T4682]  kobject_init_and_add+0x122/0x190
[  274.490406][ T4682]  ? lockdep_softirqs_off+0x420/0x420
[  274.495798][ T4682]  ? kobject_add+0x210/0x210
[  274.500407][ T4682]  ? __init_swait_queue_head+0xa5/0x150
[  274.505982][ T4682]  gfs2_sys_fs_add+0x234/0x480
[  274.510773][ T4682]  ? gfs2_recover_set+0x240/0x240
[  274.515817][ T4682]  ? snprintf+0xd7/0x120
[  274.520093][ T4682]  ? vscnprintf+0x80/0x80
[  274.524450][ T4682]  gfs2_fill_super+0x126f/0x1f80
[  274.529424][ T4682]  ? gfs2_reconfigure+0xcd0/0xcd0
[  274.534480][ T4682]  ? sb_set_blocksize+0xa5/0xe0
[  274.539354][ T4682]  get_tree_bdev+0x3f1/0x610
[  274.543961][ T4682]  ? gfs2_reconfigure+0xcd0/0xcd0
[  274.549010][ T4682]  gfs2_get_tree+0x4d/0x1e0
[  274.553548][ T4682]  vfs_get_tree+0x88/0x270
[  274.557988][ T4682]  do_new_mount+0x24a/0xa40
[  274.562520][ T4682]  __se_sys_mount+0x2d6/0x3c0
[  274.567217][ T4682]  ? __x64_sys_mount+0xc0/0xc0
[  274.571998][ T4682]  ? lockdep_hardirqs_on+0x94/0x140
[  274.577262][ T4682]  ? __x64_sys_mount+0x1c/0xc0
[  274.582038][ T4682]  do_syscall_64+0x4c/0xa0
[  274.586456][ T4682]  ? clear_bhb_loop+0x60/0xb0
[  274.591129][ T4682]  ? clear_bhb_loop+0x60/0xb0
[  274.595808][ T4682]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  274.601705][ T4682] RIP: 0033:0x7fe407f90eea
[  274.606116][ T4682] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  274.625713][ T4682] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  274.634119][ T4682] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  274.642086][ T4682] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  274.650046][ T4682] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  274.658004][ T4682] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  274.665963][ T4682] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  274.673936][ T4682]  </TASK>
[  274.679502][ T4682] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  274.693152][ T4682] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/12/26 00:16:22 executed programs: 202
[  274.999712][ T4683] loop1: detected capacity change from 0 to 32768
[  275.008031][ T4683] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  275.017846][ T4683] CPU: 0 PID: 4683 Comm: syz.1.217 Not tainted syzkaller #0
[  275.025159][ T4683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  275.035236][ T4683] Call Trace:
[  275.038526][ T4683]  <TASK>
[  275.041469][ T4683]  dump_stack_lvl+0x168/0x22e
[  275.046171][ T4683]  ? show_regs_print_info+0x12/0x12
[  275.051403][ T4683]  ? load_image+0x3b0/0x3b0
[  275.055937][ T4683]  sysfs_create_dir_ns+0x252/0x280
[  275.061069][ T4683]  ? sysfs_warn_dup+0xa0/0xa0
[  275.065759][ T4683]  ? kobject_set_name_vargs+0x5d/0x110
[  275.071233][ T4683]  ? do_raw_spin_unlock+0x11d/0x230
[  275.076454][ T4683]  kobject_add_internal+0x6b8/0xc80
[  275.081672][ T4683]  kobject_init_and_add+0x122/0x190
[  275.086892][ T4683]  ? lockdep_softirqs_off+0x420/0x420
[  275.092281][ T4683]  ? kobject_add+0x210/0x210
[  275.096883][ T4683]  ? __init_swait_queue_head+0xa5/0x150
[  275.102448][ T4683]  gfs2_sys_fs_add+0x234/0x480
[  275.107233][ T4683]  ? gfs2_recover_set+0x240/0x240
[  275.112279][ T4683]  ? snprintf+0xd7/0x120
[  275.116540][ T4683]  ? vscnprintf+0x80/0x80
[  275.120889][ T4683]  gfs2_fill_super+0x126f/0x1f80
[  275.125846][ T4683]  ? gfs2_reconfigure+0xcd0/0xcd0
[  275.130896][ T4683]  ? sb_set_blocksize+0xa5/0xe0
[  275.135769][ T4683]  get_tree_bdev+0x3f1/0x610
[  275.140371][ T4683]  ? gfs2_reconfigure+0xcd0/0xcd0
[  275.145420][ T4683]  gfs2_get_tree+0x4d/0x1e0
[  275.149943][ T4683]  vfs_get_tree+0x88/0x270
[  275.154374][ T4683]  do_new_mount+0x24a/0xa40
[  275.158897][ T4683]  __se_sys_mount+0x2d6/0x3c0
[  275.163587][ T4683]  ? __x64_sys_mount+0xc0/0xc0
[  275.168366][ T4683]  ? lockdep_hardirqs_on+0x94/0x140
[  275.173575][ T4683]  ? __x64_sys_mount+0x1c/0xc0
[  275.178324][ T4683]  do_syscall_64+0x4c/0xa0
[  275.182724][ T4683]  ? clear_bhb_loop+0x60/0xb0
[  275.187385][ T4683]  ? clear_bhb_loop+0x60/0xb0
[  275.192043][ T4683]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  275.197917][ T4683] RIP: 0033:0x7fe407f90eea
[  275.202313][ T4683] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  275.221905][ T4683] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  275.230298][ T4683] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  275.238255][ T4683] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  275.246207][ T4683] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  275.254160][ T4683] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  275.262134][ T4683] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  275.270091][ T4683]  </TASK>
[  275.274281][ T4683] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  275.290137][ T4683] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  275.606695][ T4684] loop1: detected capacity change from 0 to 32768
[  275.625564][ T4684] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  275.633140][ T4684] CPU: 1 PID: 4684 Comm: syz.1.218 Not tainted syzkaller #0
[  275.640443][ T4684] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  275.650516][ T4684] Call Trace:
[  275.653818][ T4684]  <TASK>
[  275.656766][ T4684]  dump_stack_lvl+0x168/0x22e
[  275.661474][ T4684]  ? show_regs_print_info+0x12/0x12
[  275.666710][ T4684]  ? load_image+0x3b0/0x3b0
[  275.671236][ T4684]  sysfs_create_dir_ns+0x252/0x280
[  275.676365][ T4684]  ? sysfs_warn_dup+0xa0/0xa0
[  275.681057][ T4684]  ? kobject_set_name_vargs+0x5d/0x110
[  275.686539][ T4684]  ? do_raw_spin_unlock+0x11d/0x230
[  275.691765][ T4684]  kobject_add_internal+0x6b8/0xc80
[  275.696982][ T4684]  kobject_init_and_add+0x122/0x190
[  275.702193][ T4684]  ? lockdep_softirqs_off+0x420/0x420
[  275.707589][ T4684]  ? kobject_add+0x210/0x210
[  275.712204][ T4684]  ? __init_swait_queue_head+0xa5/0x150
[  275.717771][ T4684]  gfs2_sys_fs_add+0x234/0x480
[  275.722560][ T4684]  ? gfs2_recover_set+0x240/0x240
[  275.727612][ T4684]  ? snprintf+0xd7/0x120
[  275.731876][ T4684]  ? vscnprintf+0x80/0x80
[  275.736266][ T4684]  gfs2_fill_super+0x126f/0x1f80
[  275.741250][ T4684]  ? gfs2_reconfigure+0xcd0/0xcd0
[  275.746301][ T4684]  ? sb_set_blocksize+0xa5/0xe0
[  275.751151][ T4684]  get_tree_bdev+0x3f1/0x610
[  275.755745][ T4684]  ? gfs2_reconfigure+0xcd0/0xcd0
[  275.760775][ T4684]  gfs2_get_tree+0x4d/0x1e0
[  275.765287][ T4684]  vfs_get_tree+0x88/0x270
[  275.769697][ T4684]  do_new_mount+0x24a/0xa40
[  275.774200][ T4684]  __se_sys_mount+0x2d6/0x3c0
[  275.778873][ T4684]  ? __x64_sys_mount+0xc0/0xc0
[  275.783630][ T4684]  ? lockdep_hardirqs_on+0x94/0x140
[  275.788822][ T4684]  ? __x64_sys_mount+0x1c/0xc0
[  275.793585][ T4684]  do_syscall_64+0x4c/0xa0
[  275.798000][ T4684]  ? clear_bhb_loop+0x60/0xb0
[  275.802676][ T4684]  ? clear_bhb_loop+0x60/0xb0
[  275.807345][ T4684]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  275.813235][ T4684] RIP: 0033:0x7fe407f90eea
[  275.817655][ T4684] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  275.837353][ T4684] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  275.845760][ T4684] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  275.853738][ T4684] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  275.861702][ T4684] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  275.869661][ T4684] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  275.877619][ T4684] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  275.885591][ T4684]  </TASK>
[  275.889091][ T4684] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  275.903653][ T4684] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  276.161596][ T4685] loop1: detected capacity change from 0 to 32768
[  276.177778][ T4685] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  276.185373][ T4685] CPU: 0 PID: 4685 Comm: syz.1.219 Not tainted syzkaller #0
[  276.192671][ T4685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  276.202739][ T4685] Call Trace:
[  276.206032][ T4685]  <TASK>
[  276.208976][ T4685]  dump_stack_lvl+0x168/0x22e
[  276.213682][ T4685]  ? show_regs_print_info+0x12/0x12
[  276.218913][ T4685]  ? load_image+0x3b0/0x3b0
[  276.223447][ T4685]  sysfs_create_dir_ns+0x252/0x280
[  276.228578][ T4685]  ? sysfs_warn_dup+0xa0/0xa0
[  276.233274][ T4685]  ? kobject_set_name_vargs+0x5d/0x110
[  276.238757][ T4685]  ? do_raw_spin_unlock+0x11d/0x230
[  276.243981][ T4685]  kobject_add_internal+0x6b8/0xc80
[  276.249209][ T4685]  kobject_init_and_add+0x122/0x190
[  276.254486][ T4685]  ? lockdep_softirqs_off+0x420/0x420
[  276.259882][ T4685]  ? kobject_add+0x210/0x210
[  276.264500][ T4685]  ? __init_swait_queue_head+0xa5/0x150
[  276.270079][ T4685]  gfs2_sys_fs_add+0x234/0x480
[  276.274874][ T4685]  ? gfs2_recover_set+0x240/0x240
[  276.279933][ T4685]  ? snprintf+0xd7/0x120
[  276.284205][ T4685]  ? vscnprintf+0x80/0x80
[  276.288563][ T4685]  gfs2_fill_super+0x126f/0x1f80
[  276.293547][ T4685]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.298600][ T4685]  ? sb_set_blocksize+0xa5/0xe0
[  276.303472][ T4685]  get_tree_bdev+0x3f1/0x610
[  276.308082][ T4685]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.313128][ T4685]  gfs2_get_tree+0x4d/0x1e0
[  276.317654][ T4685]  vfs_get_tree+0x88/0x270
[  276.322087][ T4685]  do_new_mount+0x24a/0xa40
[  276.326609][ T4685]  __se_sys_mount+0x2d6/0x3c0
[  276.331305][ T4685]  ? __x64_sys_mount+0xc0/0xc0
[  276.336083][ T4685]  ? lockdep_hardirqs_on+0x94/0x140
[  276.341303][ T4685]  ? __x64_sys_mount+0x1c/0xc0
[  276.346097][ T4685]  do_syscall_64+0x4c/0xa0
[  276.350529][ T4685]  ? clear_bhb_loop+0x60/0xb0
[  276.355207][ T4685]  ? clear_bhb_loop+0x60/0xb0
[  276.359875][ T4685]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  276.365761][ T4685] RIP: 0033:0x7fe407f90eea
[  276.370169][ T4685] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  276.390121][ T4685] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.398528][ T4685] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  276.406489][ T4685] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  276.414449][ T4685] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  276.422418][ T4685] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  276.430386][ T4685] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  276.438352][ T4685]  </TASK>
[  276.448585][ T4685] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  276.462149][ T4685] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  276.773714][ T4686] loop1: detected capacity change from 0 to 32768
[  276.790612][ T4686] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  276.798081][ T4686] CPU: 0 PID: 4686 Comm: syz.1.220 Not tainted syzkaller #0
[  276.805385][ T4686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  276.815456][ T4686] Call Trace:
[  276.818750][ T4686]  <TASK>
[  276.821693][ T4686]  dump_stack_lvl+0x168/0x22e
[  276.826400][ T4686]  ? show_regs_print_info+0x12/0x12
[  276.831625][ T4686]  ? load_image+0x3b0/0x3b0
[  276.836153][ T4686]  sysfs_create_dir_ns+0x252/0x280
[  276.841286][ T4686]  ? sysfs_warn_dup+0xa0/0xa0
[  276.845983][ T4686]  ? kobject_set_name_vargs+0x5d/0x110
[  276.851455][ T4686]  ? do_raw_spin_unlock+0x11d/0x230
[  276.856676][ T4686]  kobject_add_internal+0x6b8/0xc80
[  276.861892][ T4686]  kobject_init_and_add+0x122/0x190
[  276.867116][ T4686]  ? lockdep_softirqs_off+0x420/0x420
[  276.872509][ T4686]  ? kobject_add+0x210/0x210
[  276.877125][ T4686]  ? __init_swait_queue_head+0xa5/0x150
[  276.882694][ T4686]  gfs2_sys_fs_add+0x234/0x480
[  276.887480][ T4686]  ? gfs2_recover_set+0x240/0x240
[  276.892522][ T4686]  ? snprintf+0xd7/0x120
[  276.896781][ T4686]  ? vscnprintf+0x80/0x80
[  276.901138][ T4686]  gfs2_fill_super+0x126f/0x1f80
[  276.906106][ T4686]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.911164][ T4686]  ? sb_set_blocksize+0xa5/0xe0
[  276.916041][ T4686]  get_tree_bdev+0x3f1/0x610
[  276.920644][ T4686]  ? gfs2_reconfigure+0xcd0/0xcd0
[  276.925692][ T4686]  gfs2_get_tree+0x4d/0x1e0
[  276.930224][ T4686]  vfs_get_tree+0x88/0x270
[  276.934654][ T4686]  do_new_mount+0x24a/0xa40
[  276.939184][ T4686]  __se_sys_mount+0x2d6/0x3c0
[  276.943884][ T4686]  ? __x64_sys_mount+0xc0/0xc0
[  276.948662][ T4686]  ? lockdep_hardirqs_on+0x94/0x140
[  276.953866][ T4686]  ? __x64_sys_mount+0x1c/0xc0
[  276.958618][ T4686]  do_syscall_64+0x4c/0xa0
[  276.963026][ T4686]  ? clear_bhb_loop+0x60/0xb0
[  276.967687][ T4686]  ? clear_bhb_loop+0x60/0xb0
[  276.972353][ T4686]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  276.978234][ T4686] RIP: 0033:0x7fe407f90eea
[  276.982641][ T4686] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  277.002257][ T4686] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  277.010769][ T4686] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  277.018729][ T4686] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  277.026684][ T4686] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  277.034640][ T4686] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  277.042600][ T4686] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  277.050576][ T4686]  </TASK>
[  277.054553][ T4686] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  277.067744][ T4686] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  277.363992][ T4687] loop1: detected capacity change from 0 to 32768
[  277.376430][ T4687] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  277.383959][ T4687] CPU: 1 PID: 4687 Comm: syz.1.221 Not tainted syzkaller #0
[  277.391259][ T4687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  277.401326][ T4687] Call Trace:
[  277.404618][ T4687]  <TASK>
[  277.407563][ T4687]  dump_stack_lvl+0x168/0x22e
[  277.412264][ T4687]  ? show_regs_print_info+0x12/0x12
[  277.417489][ T4687]  ? load_image+0x3b0/0x3b0
[  277.422021][ T4687]  sysfs_create_dir_ns+0x252/0x280
[  277.427153][ T4687]  ? sysfs_warn_dup+0xa0/0xa0
[  277.431840][ T4687]  ? kobject_set_name_vargs+0x5d/0x110
[  277.437315][ T4687]  ? do_raw_spin_unlock+0x11d/0x230
[  277.442532][ T4687]  kobject_add_internal+0x6b8/0xc80
[  277.447730][ T4687]  kobject_init_and_add+0x122/0x190
[  277.452929][ T4687]  ? lockdep_softirqs_off+0x420/0x420
[  277.458305][ T4687]  ? kobject_add+0x210/0x210
[  277.462889][ T4687]  ? __init_swait_queue_head+0xa5/0x150
[  277.468429][ T4687]  gfs2_sys_fs_add+0x234/0x480
[  277.473192][ T4687]  ? gfs2_recover_set+0x240/0x240
[  277.478212][ T4687]  ? snprintf+0xd7/0x120
[  277.482447][ T4687]  ? vscnprintf+0x80/0x80
[  277.486773][ T4687]  gfs2_fill_super+0x126f/0x1f80
[  277.491717][ T4687]  ? gfs2_reconfigure+0xcd0/0xcd0
[  277.496742][ T4687]  ? sb_set_blocksize+0xa5/0xe0
[  277.501589][ T4687]  get_tree_bdev+0x3f1/0x610
[  277.506174][ T4687]  ? gfs2_reconfigure+0xcd0/0xcd0
[  277.511198][ T4687]  gfs2_get_tree+0x4d/0x1e0
[  277.515696][ T4687]  vfs_get_tree+0x88/0x270
[  277.520105][ T4687]  do_new_mount+0x24a/0xa40
[  277.524608][ T4687]  __se_sys_mount+0x2d6/0x3c0
[  277.529277][ T4687]  ? __x64_sys_mount+0xc0/0xc0
[  277.534032][ T4687]  ? lockdep_hardirqs_on+0x94/0x140
[  277.539221][ T4687]  ? __x64_sys_mount+0x1c/0xc0
[  277.543979][ T4687]  do_syscall_64+0x4c/0xa0
[  277.548405][ T4687]  ? clear_bhb_loop+0x60/0xb0
[  277.553095][ T4687]  ? clear_bhb_loop+0x60/0xb0
[  277.557773][ T4687]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  277.563670][ T4687] RIP: 0033:0x7fe407f90eea
[  277.568083][ T4687] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  277.587695][ T4687] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  277.596110][ T4687] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  277.604081][ T4687] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  277.612041][ T4687] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  277.620001][ T4687] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  277.627962][ T4687] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  277.635955][ T4687]  </TASK>
[  277.649794][ T4687] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  277.663322][ T4687] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  277.925253][ T4688] loop1: detected capacity change from 0 to 32768
[  277.937114][ T4688] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  277.944900][ T4688] CPU: 1 PID: 4688 Comm: syz.1.222 Not tainted syzkaller #0
[  277.952209][ T4688] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  277.962276][ T4688] Call Trace:
[  277.965570][ T4688]  <TASK>
[  277.968513][ T4688]  dump_stack_lvl+0x168/0x22e
[  277.973218][ T4688]  ? show_regs_print_info+0x12/0x12
[  277.978441][ T4688]  ? load_image+0x3b0/0x3b0
[  277.982974][ T4688]  sysfs_create_dir_ns+0x252/0x280
[  277.988108][ T4688]  ? sysfs_warn_dup+0xa0/0xa0
[  277.992800][ T4688]  ? kobject_set_name_vargs+0x5d/0x110
[  277.998292][ T4688]  ? do_raw_spin_unlock+0x11d/0x230
[  278.003508][ T4688]  kobject_add_internal+0x6b8/0xc80
[  278.008708][ T4688]  kobject_init_and_add+0x122/0x190
[  278.013901][ T4688]  ? lockdep_softirqs_off+0x420/0x420
[  278.019267][ T4688]  ? kobject_add+0x210/0x210
[  278.023856][ T4688]  ? __init_swait_queue_head+0xa5/0x150
[  278.029397][ T4688]  gfs2_sys_fs_add+0x234/0x480
[  278.034156][ T4688]  ? gfs2_recover_set+0x240/0x240
[  278.039173][ T4688]  ? snprintf+0xd7/0x120
[  278.043407][ T4688]  ? vscnprintf+0x80/0x80
[  278.047735][ T4688]  gfs2_fill_super+0x126f/0x1f80
[  278.052679][ T4688]  ? gfs2_reconfigure+0xcd0/0xcd0
[  278.057704][ T4688]  ? sb_set_blocksize+0xa5/0xe0
[  278.062551][ T4688]  get_tree_bdev+0x3f1/0x610
[  278.067131][ T4688]  ? gfs2_reconfigure+0xcd0/0xcd0
[  278.072150][ T4688]  gfs2_get_tree+0x4d/0x1e0
[  278.076648][ T4688]  vfs_get_tree+0x88/0x270
[  278.081068][ T4688]  do_new_mount+0x24a/0xa40
[  278.085565][ T4688]  __se_sys_mount+0x2d6/0x3c0
[  278.090233][ T4688]  ? __x64_sys_mount+0xc0/0xc0
[  278.094988][ T4688]  ? lockdep_hardirqs_on+0x94/0x140
[  278.100174][ T4688]  ? __x64_sys_mount+0x1c/0xc0
[  278.104930][ T4688]  do_syscall_64+0x4c/0xa0
[  278.109341][ T4688]  ? clear_bhb_loop+0x60/0xb0
[  278.114018][ T4688]  ? clear_bhb_loop+0x60/0xb0
[  278.118686][ T4688]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  278.124568][ T4688] RIP: 0033:0x7fe407f90eea
[  278.128972][ T4688] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  278.148564][ T4688] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  278.156968][ T4688] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  278.164929][ T4688] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  278.172889][ T4688] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  278.180848][ T4688] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  278.188813][ T4688] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  278.196784][ T4688]  </TASK>
[  278.203023][ T4688] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  278.216253][ T4688] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  278.474242][ T4689] loop1: detected capacity change from 0 to 32768
[  278.486172][ T4689] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  278.494907][ T4689] CPU: 1 PID: 4689 Comm: syz.1.223 Not tainted syzkaller #0
[  278.502305][ T4689] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  278.512376][ T4689] Call Trace:
[  278.515669][ T4689]  <TASK>
[  278.518611][ T4689]  dump_stack_lvl+0x168/0x22e
[  278.523317][ T4689]  ? show_regs_print_info+0x12/0x12
[  278.528535][ T4689]  ? load_image+0x3b0/0x3b0
[  278.533066][ T4689]  sysfs_create_dir_ns+0x252/0x280
[  278.538193][ T4689]  ? sysfs_warn_dup+0xa0/0xa0
[  278.542882][ T4689]  ? kobject_set_name_vargs+0x5d/0x110
[  278.548445][ T4689]  ? do_raw_spin_unlock+0x11d/0x230
[  278.553659][ T4689]  kobject_add_internal+0x6b8/0xc80
[  278.558855][ T4689]  kobject_init_and_add+0x122/0x190
[  278.564042][ T4689]  ? lockdep_softirqs_off+0x420/0x420
[  278.569410][ T4689]  ? kobject_add+0x210/0x210
[  278.573994][ T4689]  ? __init_swait_queue_head+0xa5/0x150
[  278.579534][ T4689]  gfs2_sys_fs_add+0x234/0x480
[  278.584294][ T4689]  ? gfs2_recover_set+0x240/0x240
[  278.589310][ T4689]  ? snprintf+0xd7/0x120
[  278.593550][ T4689]  ? vscnprintf+0x80/0x80
[  278.597877][ T4689]  gfs2_fill_super+0x126f/0x1f80
[  278.602827][ T4689]  ? gfs2_reconfigure+0xcd0/0xcd0
[  278.607853][ T4689]  ? sb_set_blocksize+0xa5/0xe0
[  278.612697][ T4689]  get_tree_bdev+0x3f1/0x610
[  278.617276][ T4689]  ? gfs2_reconfigure+0xcd0/0xcd0
[  278.622297][ T4689]  gfs2_get_tree+0x4d/0x1e0
[  278.626802][ T4689]  vfs_get_tree+0x88/0x270
[  278.631211][ T4689]  do_new_mount+0x24a/0xa40
[  278.635708][ T4689]  __se_sys_mount+0x2d6/0x3c0
[  278.640379][ T4689]  ? __x64_sys_mount+0xc0/0xc0
[  278.645138][ T4689]  ? lockdep_hardirqs_on+0x94/0x140
[  278.650584][ T4689]  ? __x64_sys_mount+0x1c/0xc0
[  278.655338][ T4689]  do_syscall_64+0x4c/0xa0
[  278.659750][ T4689]  ? clear_bhb_loop+0x60/0xb0
[  278.664421][ T4689]  ? clear_bhb_loop+0x60/0xb0
[  278.669091][ T4689]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  278.674972][ T4689] RIP: 0033:0x7fe407f90eea
[  278.679374][ T4689] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  278.698968][ T4689] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  278.707370][ T4689] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  278.715334][ T4689] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  278.723293][ T4689] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  278.731251][ T4689] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  278.739209][ T4689] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  278.747181][ T4689]  </TASK>
[  278.759067][ T4689] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  278.773319][ T4689] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.051978][ T4690] loop1: detected capacity change from 0 to 32768
[  279.067564][ T4690] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.075097][ T4690] CPU: 1 PID: 4690 Comm: syz.1.224 Not tainted syzkaller #0
[  279.082398][ T4690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  279.092465][ T4690] Call Trace:
[  279.095769][ T4690]  <TASK>
[  279.098711][ T4690]  dump_stack_lvl+0x168/0x22e
[  279.103425][ T4690]  ? show_regs_print_info+0x12/0x12
[  279.108649][ T4690]  ? load_image+0x3b0/0x3b0
[  279.113182][ T4690]  sysfs_create_dir_ns+0x252/0x280
[  279.118402][ T4690]  ? sysfs_warn_dup+0xa0/0xa0
[  279.123095][ T4690]  ? kobject_set_name_vargs+0x5d/0x110
[  279.128568][ T4690]  ? do_raw_spin_unlock+0x11d/0x230
[  279.133792][ T4690]  kobject_add_internal+0x6b8/0xc80
[  279.139083][ T4690]  kobject_init_and_add+0x122/0x190
[  279.144271][ T4690]  ? lockdep_softirqs_off+0x420/0x420
[  279.149640][ T4690]  ? kobject_add+0x210/0x210
[  279.154225][ T4690]  ? __init_swait_queue_head+0xa5/0x150
[  279.159766][ T4690]  gfs2_sys_fs_add+0x234/0x480
[  279.164528][ T4690]  ? gfs2_recover_set+0x240/0x240
[  279.169547][ T4690]  ? snprintf+0xd7/0x120
[  279.173787][ T4690]  ? vscnprintf+0x80/0x80
[  279.178121][ T4690]  gfs2_fill_super+0x126f/0x1f80
[  279.183070][ T4690]  ? gfs2_reconfigure+0xcd0/0xcd0
[  279.188098][ T4690]  ? sb_set_blocksize+0xa5/0xe0
[  279.192986][ T4690]  get_tree_bdev+0x3f1/0x610
[  279.197570][ T4690]  ? gfs2_reconfigure+0xcd0/0xcd0
[  279.202593][ T4690]  gfs2_get_tree+0x4d/0x1e0
[  279.207096][ T4690]  vfs_get_tree+0x88/0x270
[  279.211503][ T4690]  do_new_mount+0x24a/0xa40
[  279.216004][ T4690]  __se_sys_mount+0x2d6/0x3c0
[  279.220675][ T4690]  ? __x64_sys_mount+0xc0/0xc0
[  279.225431][ T4690]  ? lockdep_hardirqs_on+0x94/0x140
[  279.230624][ T4690]  ? __x64_sys_mount+0x1c/0xc0
[  279.235380][ T4690]  do_syscall_64+0x4c/0xa0
[  279.239796][ T4690]  ? clear_bhb_loop+0x60/0xb0
[  279.244466][ T4690]  ? clear_bhb_loop+0x60/0xb0
[  279.249136][ T4690]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  279.255021][ T4690] RIP: 0033:0x7fe407f90eea
[  279.259427][ T4690] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  279.279021][ T4690] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.287425][ T4690] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  279.295386][ T4690] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  279.303346][ T4690] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  279.311306][ T4690] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  279.319265][ T4690] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  279.327234][ T4690]  </TASK>
[  279.336389][ T4690] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  279.349727][ T4690] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.393196][ T4455] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[  279.684902][ T4691] loop1: detected capacity change from 0 to 32768
[  279.700720][ T4691] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.708474][ T4691] CPU: 1 PID: 4691 Comm: syz.1.225 Not tainted syzkaller #0
[  279.715781][ T4691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  279.725849][ T4691] Call Trace:
[  279.729138][ T4691]  <TASK>
[  279.732087][ T4691]  dump_stack_lvl+0x168/0x22e
[  279.736789][ T4691]  ? show_regs_print_info+0x12/0x12
[  279.742009][ T4691]  ? load_image+0x3b0/0x3b0
[  279.746539][ T4691]  sysfs_create_dir_ns+0x252/0x280
[  279.751672][ T4691]  ? sysfs_warn_dup+0xa0/0xa0
[  279.756366][ T4691]  ? kobject_set_name_vargs+0x5d/0x110
[  279.761845][ T4691]  ? do_raw_spin_unlock+0x11d/0x230
[  279.767069][ T4691]  kobject_add_internal+0x6b8/0xc80
[  279.772292][ T4691]  kobject_init_and_add+0x122/0x190
[  279.777505][ T4691]  ? lockdep_softirqs_off+0x420/0x420
[  279.782898][ T4691]  ? kobject_add+0x210/0x210
[  279.787505][ T4691]  ? __init_swait_queue_head+0xa5/0x150
[  279.793081][ T4691]  gfs2_sys_fs_add+0x234/0x480
[  279.797863][ T4691]  ? gfs2_recover_set+0x240/0x240
[  279.802902][ T4691]  ? snprintf+0xd7/0x120
[  279.807160][ T4691]  ? vscnprintf+0x80/0x80
[  279.811516][ T4691]  gfs2_fill_super+0x126f/0x1f80
[  279.816480][ T4691]  ? gfs2_reconfigure+0xcd0/0xcd0
[  279.821511][ T4691]  ? sb_set_blocksize+0xa5/0xe0
[  279.826358][ T4691]  get_tree_bdev+0x3f1/0x610
[  279.830942][ T4691]  ? gfs2_reconfigure+0xcd0/0xcd0
[  279.835970][ T4691]  gfs2_get_tree+0x4d/0x1e0
[  279.840470][ T4691]  vfs_get_tree+0x88/0x270
[  279.844879][ T4691]  do_new_mount+0x24a/0xa40
[  279.849378][ T4691]  __se_sys_mount+0x2d6/0x3c0
[  279.854050][ T4691]  ? __x64_sys_mount+0xc0/0xc0
[  279.858809][ T4691]  ? lockdep_hardirqs_on+0x94/0x140
[  279.864002][ T4691]  ? __x64_sys_mount+0x1c/0xc0
[  279.868758][ T4691]  do_syscall_64+0x4c/0xa0
[  279.873172][ T4691]  ? clear_bhb_loop+0x60/0xb0
[  279.877843][ T4691]  ? clear_bhb_loop+0x60/0xb0
[  279.882514][ T4691]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  279.888396][ T4691] RIP: 0033:0x7fe407f90eea
[  279.892803][ T4691] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  279.912486][ T4691] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.920894][ T4691] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  279.928859][ T4691] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  279.936819][ T4691] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  279.944781][ T4691] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  279.952742][ T4691] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  279.960714][ T4691]  </TASK>
[  279.973538][ T4691] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  279.988377][ T4691] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/12/26 00:16:28 executed programs: 211
[  280.244063][ T4692] loop1: detected capacity change from 0 to 32768
[  280.255313][ T4692] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  280.262884][ T4692] CPU: 1 PID: 4692 Comm: syz.1.226 Not tainted syzkaller #0
[  280.270187][ T4692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  280.280256][ T4692] Call Trace:
[  280.283547][ T4692]  <TASK>
[  280.286490][ T4692]  dump_stack_lvl+0x168/0x22e
[  280.291193][ T4692]  ? show_regs_print_info+0x12/0x12
[  280.296416][ T4692]  ? load_image+0x3b0/0x3b0
[  280.300946][ T4692]  sysfs_create_dir_ns+0x252/0x280
[  280.306087][ T4692]  ? sysfs_warn_dup+0xa0/0xa0
[  280.310783][ T4692]  ? kobject_set_name_vargs+0x5d/0x110
[  280.316254][ T4692]  ? do_raw_spin_unlock+0x11d/0x230
[  280.321479][ T4692]  kobject_add_internal+0x6b8/0xc80
[  280.326708][ T4692]  kobject_init_and_add+0x122/0x190
[  280.331920][ T4692]  ? lockdep_softirqs_off+0x420/0x420
[  280.337315][ T4692]  ? kobject_add+0x210/0x210
[  280.341928][ T4692]  ? __init_swait_queue_head+0xa5/0x150
[  280.347500][ T4692]  gfs2_sys_fs_add+0x234/0x480
[  280.352287][ T4692]  ? gfs2_recover_set+0x240/0x240
[  280.357332][ T4692]  ? snprintf+0xd7/0x120
[  280.361602][ T4692]  ? vscnprintf+0x80/0x80
[  280.365957][ T4692]  gfs2_fill_super+0x126f/0x1f80
[  280.370923][ T4692]  ? gfs2_reconfigure+0xcd0/0xcd0
[  280.375964][ T4692]  ? sb_set_blocksize+0xa5/0xe0
[  280.380813][ T4692]  get_tree_bdev+0x3f1/0x610
[  280.385404][ T4692]  ? gfs2_reconfigure+0xcd0/0xcd0
[  280.390426][ T4692]  gfs2_get_tree+0x4d/0x1e0
[  280.394928][ T4692]  vfs_get_tree+0x88/0x270
[  280.399342][ T4692]  do_new_mount+0x24a/0xa40
[  280.403845][ T4692]  __se_sys_mount+0x2d6/0x3c0
[  280.408516][ T4692]  ? __x64_sys_mount+0xc0/0xc0
[  280.413276][ T4692]  ? lockdep_hardirqs_on+0x94/0x140
[  280.418466][ T4692]  ? __x64_sys_mount+0x1c/0xc0
[  280.423223][ T4692]  do_syscall_64+0x4c/0xa0
[  280.427636][ T4692]  ? clear_bhb_loop+0x60/0xb0
[  280.432306][ T4692]  ? clear_bhb_loop+0x60/0xb0
[  280.436977][ T4692]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  280.442863][ T4692] RIP: 0033:0x7fe407f90eea
[  280.447269][ T4692] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  280.466863][ T4692] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  280.475265][ T4692] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  280.483231][ T4692] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  280.491196][ T4692] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  280.499158][ T4692] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  280.507126][ T4692] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  280.515102][ T4692]  </TASK>
[  280.525793][ T4692] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  280.540964][ T4692] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  280.799867][ T4693] loop1: detected capacity change from 0 to 32768
[  280.811411][ T4693] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  280.821424][ T4693] CPU: 1 PID: 4693 Comm: syz.1.227 Not tainted syzkaller #0
[  280.828738][ T4693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  280.838815][ T4693] Call Trace:
[  280.842112][ T4693]  <TASK>
[  280.845063][ T4693]  dump_stack_lvl+0x168/0x22e
[  280.849779][ T4693]  ? show_regs_print_info+0x12/0x12
[  280.855008][ T4693]  ? load_image+0x3b0/0x3b0
[  280.859548][ T4693]  sysfs_create_dir_ns+0x252/0x280
[  280.864692][ T4693]  ? sysfs_warn_dup+0xa0/0xa0
[  280.869394][ T4693]  ? kobject_set_name_vargs+0x5d/0x110
[  280.874874][ T4693]  ? do_raw_spin_unlock+0x11d/0x230
[  280.880103][ T4693]  kobject_add_internal+0x6b8/0xc80
[  280.885319][ T4693]  kobject_init_and_add+0x122/0x190
[  280.890514][ T4693]  ? lockdep_softirqs_off+0x420/0x420
[  280.895894][ T4693]  ? kobject_add+0x210/0x210
[  280.900488][ T4693]  ? __init_swait_queue_head+0xa5/0x150
[  280.906033][ T4693]  gfs2_sys_fs_add+0x234/0x480
[  280.910799][ T4693]  ? gfs2_recover_set+0x240/0x240
[  280.915818][ T4693]  ? snprintf+0xd7/0x120
[  280.920055][ T4693]  ? vscnprintf+0x80/0x80
[  280.924384][ T4693]  gfs2_fill_super+0x126f/0x1f80
[  280.929328][ T4693]  ? gfs2_reconfigure+0xcd0/0xcd0
[  280.934368][ T4693]  ? sb_set_blocksize+0xa5/0xe0
[  280.939216][ T4693]  get_tree_bdev+0x3f1/0x610
[  280.943804][ T4693]  ? gfs2_reconfigure+0xcd0/0xcd0
[  280.948827][ T4693]  gfs2_get_tree+0x4d/0x1e0
[  280.953330][ T4693]  vfs_get_tree+0x88/0x270
[  280.957745][ T4693]  do_new_mount+0x24a/0xa40
[  280.962255][ T4693]  __se_sys_mount+0x2d6/0x3c0
[  280.966924][ T4693]  ? __x64_sys_mount+0xc0/0xc0
[  280.971689][ T4693]  ? lockdep_hardirqs_on+0x94/0x140
[  280.976876][ T4693]  ? __x64_sys_mount+0x1c/0xc0
[  280.981631][ T4693]  do_syscall_64+0x4c/0xa0
[  280.986042][ T4693]  ? clear_bhb_loop+0x60/0xb0
[  280.990711][ T4693]  ? clear_bhb_loop+0x60/0xb0
[  280.995381][ T4693]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  281.001266][ T4693] RIP: 0033:0x7fe407f90eea
[  281.005672][ T4693] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  281.025271][ T4693] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  281.033679][ T4693] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  281.041638][ T4693] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  281.049597][ T4693] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  281.057561][ T4693] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  281.065609][ T4693] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  281.073583][ T4693]  </TASK>
[  281.088699][ T4693] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  281.104128][ T4693] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  281.398491][ T4694] loop1: detected capacity change from 0 to 32768
[  281.415242][ T4694] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  281.422708][ T4694] CPU: 1 PID: 4694 Comm: syz.1.228 Not tainted syzkaller #0
[  281.430012][ T4694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  281.440078][ T4694] Call Trace:
[  281.443366][ T4694]  <TASK>
[  281.446309][ T4694]  dump_stack_lvl+0x168/0x22e
[  281.451098][ T4694]  ? show_regs_print_info+0x12/0x12
[  281.456317][ T4694]  ? load_image+0x3b0/0x3b0
[  281.460851][ T4694]  sysfs_create_dir_ns+0x252/0x280
[  281.465981][ T4694]  ? sysfs_warn_dup+0xa0/0xa0
[  281.470672][ T4694]  ? kobject_set_name_vargs+0x5d/0x110
[  281.476145][ T4694]  ? do_raw_spin_unlock+0x11d/0x230
[  281.481367][ T4694]  kobject_add_internal+0x6b8/0xc80
[  281.486582][ T4694]  kobject_init_and_add+0x122/0x190
[  281.491771][ T4694]  ? lockdep_softirqs_off+0x420/0x420
[  281.497140][ T4694]  ? kobject_add+0x210/0x210
[  281.501733][ T4694]  ? __init_swait_queue_head+0xa5/0x150
[  281.507273][ T4694]  gfs2_sys_fs_add+0x234/0x480
[  281.512032][ T4694]  ? gfs2_recover_set+0x240/0x240
[  281.517051][ T4694]  ? snprintf+0xd7/0x120
[  281.521287][ T4694]  ? vscnprintf+0x80/0x80
[  281.525612][ T4694]  gfs2_fill_super+0x126f/0x1f80
[  281.530565][ T4694]  ? gfs2_reconfigure+0xcd0/0xcd0
[  281.535598][ T4694]  ? sb_set_blocksize+0xa5/0xe0
[  281.540447][ T4694]  get_tree_bdev+0x3f1/0x610
[  281.545031][ T4694]  ? gfs2_reconfigure+0xcd0/0xcd0
[  281.550051][ T4694]  gfs2_get_tree+0x4d/0x1e0
[  281.554554][ T4694]  vfs_get_tree+0x88/0x270
[  281.558962][ T4694]  do_new_mount+0x24a/0xa40
[  281.563460][ T4694]  __se_sys_mount+0x2d6/0x3c0
[  281.568131][ T4694]  ? __x64_sys_mount+0xc0/0xc0
[  281.572887][ T4694]  ? lockdep_hardirqs_on+0x94/0x140
[  281.578074][ T4694]  ? __x64_sys_mount+0x1c/0xc0
[  281.582828][ T4694]  do_syscall_64+0x4c/0xa0
[  281.587237][ T4694]  ? clear_bhb_loop+0x60/0xb0
[  281.591903][ T4694]  ? clear_bhb_loop+0x60/0xb0
[  281.596591][ T4694]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  281.602494][ T4694] RIP: 0033:0x7fe407f90eea
[  281.606916][ T4694] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  281.626527][ T4694] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  281.634940][ T4694] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  281.642906][ T4694] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  281.650869][ T4694] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  281.658832][ T4694] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  281.666791][ T4694] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  281.674763][ T4694]  </TASK>
[  281.685360][ T4694] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  281.701845][ T4694] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  281.988454][ T4695] loop1: detected capacity change from 0 to 32768
[  282.007428][ T4695] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  282.014995][ T4695] CPU: 0 PID: 4695 Comm: syz.1.229 Not tainted syzkaller #0
[  282.022298][ T4695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  282.032366][ T4695] Call Trace:
[  282.035677][ T4695]  <TASK>
[  282.038627][ T4695]  dump_stack_lvl+0x168/0x22e
[  282.043342][ T4695]  ? show_regs_print_info+0x12/0x12
[  282.048567][ T4695]  ? load_image+0x3b0/0x3b0
[  282.053098][ T4695]  sysfs_create_dir_ns+0x252/0x280
[  282.058228][ T4695]  ? sysfs_warn_dup+0xa0/0xa0
[  282.062921][ T4695]  ? kobject_set_name_vargs+0x5d/0x110
[  282.068393][ T4695]  ? do_raw_spin_unlock+0x11d/0x230
[  282.073688][ T4695]  kobject_add_internal+0x6b8/0xc80
[  282.078920][ T4695]  kobject_init_and_add+0x122/0x190
[  282.084135][ T4695]  ? lockdep_softirqs_off+0x420/0x420
[  282.089532][ T4695]  ? kobject_add+0x210/0x210
[  282.094141][ T4695]  ? __init_swait_queue_head+0xa5/0x150
[  282.099707][ T4695]  gfs2_sys_fs_add+0x234/0x480
[  282.104494][ T4695]  ? gfs2_recover_set+0x240/0x240
[  282.109538][ T4695]  ? snprintf+0xd7/0x120
[  282.113806][ T4695]  ? vscnprintf+0x80/0x80
[  282.118159][ T4695]  gfs2_fill_super+0x126f/0x1f80
[  282.123131][ T4695]  ? gfs2_reconfigure+0xcd0/0xcd0
[  282.128188][ T4695]  ? sb_set_blocksize+0xa5/0xe0
[  282.133058][ T4695]  get_tree_bdev+0x3f1/0x610
[  282.137665][ T4695]  ? gfs2_reconfigure+0xcd0/0xcd0
[  282.142706][ T4695]  gfs2_get_tree+0x4d/0x1e0
[  282.147226][ T4695]  vfs_get_tree+0x88/0x270
[  282.151655][ T4695]  do_new_mount+0x24a/0xa40
[  282.156176][ T4695]  __se_sys_mount+0x2d6/0x3c0
[  282.160860][ T4695]  ? __x64_sys_mount+0xc0/0xc0
[  282.165658][ T4695]  ? lockdep_hardirqs_on+0x94/0x140
[  282.170841][ T4695]  ? __x64_sys_mount+0x1c/0xc0
[  282.175592][ T4695]  do_syscall_64+0x4c/0xa0
[  282.179999][ T4695]  ? clear_bhb_loop+0x60/0xb0
[  282.184666][ T4695]  ? clear_bhb_loop+0x60/0xb0
[  282.189329][ T4695]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  282.195291][ T4695] RIP: 0033:0x7fe407f90eea
[  282.199689][ T4695] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  282.219281][ T4695] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  282.227680][ T4695] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  282.235636][ T4695] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  282.243591][ T4695] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  282.251542][ T4695] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  282.259498][ T4695] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  282.267462][ T4695]  </TASK>
[  282.271480][ T4695] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  282.286636][ T4695] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  282.595510][ T4696] loop1: detected capacity change from 0 to 32768
[  282.610861][ T4696] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  282.618436][ T4696] CPU: 0 PID: 4696 Comm: syz.1.230 Not tainted syzkaller #0
[  282.625715][ T4696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  282.635767][ T4696] Call Trace:
[  282.639040][ T4696]  <TASK>
[  282.641960][ T4696]  dump_stack_lvl+0x168/0x22e
[  282.646643][ T4696]  ? show_regs_print_info+0x12/0x12
[  282.651837][ T4696]  ? load_image+0x3b0/0x3b0
[  282.656342][ T4696]  sysfs_create_dir_ns+0x252/0x280
[  282.661452][ T4696]  ? sysfs_warn_dup+0xa0/0xa0
[  282.666121][ T4696]  ? kobject_set_name_vargs+0x5d/0x110
[  282.671568][ T4696]  ? do_raw_spin_unlock+0x11d/0x230
[  282.676770][ T4696]  kobject_add_internal+0x6b8/0xc80
[  282.681967][ T4696]  kobject_init_and_add+0x122/0x190
[  282.687156][ T4696]  ? lockdep_softirqs_off+0x420/0x420
[  282.692522][ T4696]  ? kobject_add+0x210/0x210
[  282.697107][ T4696]  ? __init_swait_queue_head+0xa5/0x150
[  282.702650][ T4696]  gfs2_sys_fs_add+0x234/0x480
[  282.707410][ T4696]  ? gfs2_recover_set+0x240/0x240
[  282.712433][ T4696]  ? snprintf+0xd7/0x120
[  282.716669][ T4696]  ? vscnprintf+0x80/0x80
[  282.720998][ T4696]  gfs2_fill_super+0x126f/0x1f80
[  282.725941][ T4696]  ? gfs2_reconfigure+0xcd0/0xcd0
[  282.730969][ T4696]  ? sb_set_blocksize+0xa5/0xe0
[  282.735811][ T4696]  get_tree_bdev+0x3f1/0x610
[  282.740392][ T4696]  ? gfs2_reconfigure+0xcd0/0xcd0
[  282.745413][ T4696]  gfs2_get_tree+0x4d/0x1e0
[  282.749911][ T4696]  vfs_get_tree+0x88/0x270
[  282.754316][ T4696]  do_new_mount+0x24a/0xa40
[  282.758811][ T4696]  __se_sys_mount+0x2d6/0x3c0
[  282.763482][ T4696]  ? __x64_sys_mount+0xc0/0xc0
[  282.768240][ T4696]  ? lockdep_hardirqs_on+0x94/0x140
[  282.773427][ T4696]  ? __x64_sys_mount+0x1c/0xc0
[  282.778181][ T4696]  do_syscall_64+0x4c/0xa0
[  282.782591][ T4696]  ? clear_bhb_loop+0x60/0xb0
[  282.787258][ T4696]  ? clear_bhb_loop+0x60/0xb0
[  282.791925][ T4696]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  282.797808][ T4696] RIP: 0033:0x7fe407f90eea
[  282.802211][ T4696] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  282.821807][ T4696] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  282.830212][ T4696] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  282.838175][ T4696] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  282.846139][ T4696] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  282.854099][ T4696] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  282.862063][ T4696] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  282.870037][ T4696]  </TASK>
[  282.877933][ T4696] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  282.891372][ T4696] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  283.175819][ T4697] loop1: detected capacity change from 0 to 32768
[  283.186713][ T4697] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  283.194219][ T4697] CPU: 1 PID: 4697 Comm: syz.1.231 Not tainted syzkaller #0
[  283.201522][ T4697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  283.211600][ T4697] Call Trace:
[  283.214894][ T4697]  <TASK>
[  283.217839][ T4697]  dump_stack_lvl+0x168/0x22e
[  283.222544][ T4697]  ? show_regs_print_info+0x12/0x12
[  283.227772][ T4697]  ? load_image+0x3b0/0x3b0
[  283.232322][ T4697]  sysfs_create_dir_ns+0x252/0x280
[  283.237453][ T4697]  ? sysfs_warn_dup+0xa0/0xa0
[  283.242142][ T4697]  ? kobject_set_name_vargs+0x5d/0x110
[  283.247615][ T4697]  ? do_raw_spin_unlock+0x11d/0x230
[  283.252839][ T4697]  kobject_add_internal+0x6b8/0xc80
[  283.258145][ T4697]  kobject_init_and_add+0x122/0x190
[  283.263355][ T4697]  ? lockdep_softirqs_off+0x420/0x420
[  283.268747][ T4697]  ? kobject_add+0x210/0x210
[  283.273358][ T4697]  ? __init_swait_queue_head+0xa5/0x150
[  283.278931][ T4697]  gfs2_sys_fs_add+0x234/0x480
[  283.283721][ T4697]  ? gfs2_recover_set+0x240/0x240
[  283.288763][ T4697]  ? snprintf+0xd7/0x120
[  283.293027][ T4697]  ? vscnprintf+0x80/0x80
[  283.297377][ T4697]  gfs2_fill_super+0x126f/0x1f80
[  283.302359][ T4697]  ? gfs2_reconfigure+0xcd0/0xcd0
[  283.307391][ T4697]  ? sb_set_blocksize+0xa5/0xe0
[  283.312236][ T4697]  get_tree_bdev+0x3f1/0x610
[  283.316835][ T4697]  ? gfs2_reconfigure+0xcd0/0xcd0
[  283.321854][ T4697]  gfs2_get_tree+0x4d/0x1e0
[  283.326353][ T4697]  vfs_get_tree+0x88/0x270
[  283.330763][ T4697]  do_new_mount+0x24a/0xa40
[  283.335261][ T4697]  __se_sys_mount+0x2d6/0x3c0
[  283.339932][ T4697]  ? __x64_sys_mount+0xc0/0xc0
[  283.344687][ T4697]  ? lockdep_hardirqs_on+0x94/0x140
[  283.349874][ T4697]  ? __x64_sys_mount+0x1c/0xc0
[  283.354630][ T4697]  do_syscall_64+0x4c/0xa0
[  283.359039][ T4697]  ? clear_bhb_loop+0x60/0xb0
[  283.363705][ T4697]  ? clear_bhb_loop+0x60/0xb0
[  283.368376][ T4697]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  283.374259][ T4697] RIP: 0033:0x7fe407f90eea
[  283.378664][ T4697] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  283.398267][ T4697] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  283.406674][ T4697] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  283.414644][ T4697] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  283.422605][ T4697] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  283.430563][ T4697] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  283.438521][ T4697] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  283.446498][ T4697]  </TASK>
[  283.456683][   T47] Bluetooth: hci1: command 0x0406 tx timeout
[  283.463409][ T4697] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  283.477299][ T4697] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  283.733029][ T4698] loop1: detected capacity change from 0 to 32768
[  283.745447][ T4698] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  283.752910][ T4698] CPU: 0 PID: 4698 Comm: syz.1.232 Not tainted syzkaller #0
[  283.760210][ T4698] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  283.770280][ T4698] Call Trace:
[  283.773572][ T4698]  <TASK>
[  283.776522][ T4698]  dump_stack_lvl+0x168/0x22e
[  283.781224][ T4698]  ? show_regs_print_info+0x12/0x12
[  283.786447][ T4698]  ? load_image+0x3b0/0x3b0
[  283.790983][ T4698]  sysfs_create_dir_ns+0x252/0x280
[  283.796110][ T4698]  ? sysfs_warn_dup+0xa0/0xa0
[  283.800799][ T4698]  ? kobject_set_name_vargs+0x5d/0x110
[  283.806269][ T4698]  ? do_raw_spin_unlock+0x11d/0x230
[  283.811493][ T4698]  kobject_add_internal+0x6b8/0xc80
[  283.816702][ T4698]  kobject_init_and_add+0x122/0x190
[  283.821894][ T4698]  ? lockdep_softirqs_off+0x420/0x420
[  283.827270][ T4698]  ? kobject_add+0x210/0x210
[  283.831856][ T4698]  ? __init_swait_queue_head+0xa5/0x150
[  283.837400][ T4698]  gfs2_sys_fs_add+0x234/0x480
[  283.842160][ T4698]  ? gfs2_recover_set+0x240/0x240
[  283.847177][ T4698]  ? snprintf+0xd7/0x120
[  283.851412][ T4698]  ? vscnprintf+0x80/0x80
[  283.855739][ T4698]  gfs2_fill_super+0x126f/0x1f80
[  283.860681][ T4698]  ? gfs2_reconfigure+0xcd0/0xcd0
[  283.865707][ T4698]  ? sb_set_blocksize+0xa5/0xe0
[  283.870550][ T4698]  get_tree_bdev+0x3f1/0x610
[  283.875137][ T4698]  ? gfs2_reconfigure+0xcd0/0xcd0
[  283.880161][ T4698]  gfs2_get_tree+0x4d/0x1e0
[  283.884662][ T4698]  vfs_get_tree+0x88/0x270
[  283.889067][ T4698]  do_new_mount+0x24a/0xa40
[  283.893564][ T4698]  __se_sys_mount+0x2d6/0x3c0
[  283.898244][ T4698]  ? __x64_sys_mount+0xc0/0xc0
[  283.902997][ T4698]  ? lockdep_hardirqs_on+0x94/0x140
[  283.908186][ T4698]  ? __x64_sys_mount+0x1c/0xc0
[  283.912943][ T4698]  do_syscall_64+0x4c/0xa0
[  283.917354][ T4698]  ? clear_bhb_loop+0x60/0xb0
[  283.922024][ T4698]  ? clear_bhb_loop+0x60/0xb0
[  283.926692][ T4698]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  283.932579][ T4698] RIP: 0033:0x7fe407f90eea
[  283.936984][ T4698] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  283.956597][ T4698] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  283.965005][ T4698] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  283.972966][ T4698] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  283.980932][ T4698] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  283.988892][ T4698] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  283.996855][ T4698] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  284.004827][ T4698]  </TASK>
[  284.013455][ T4698] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  284.026918][ T4698] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  284.283273][ T4699] loop1: detected capacity change from 0 to 32768
[  284.297314][ T4699] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  284.304794][ T4699] CPU: 0 PID: 4699 Comm: syz.1.233 Not tainted syzkaller #0
[  284.312096][ T4699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  284.322169][ T4699] Call Trace:
[  284.325461][ T4699]  <TASK>
[  284.328406][ T4699]  dump_stack_lvl+0x168/0x22e
[  284.333113][ T4699]  ? show_regs_print_info+0x12/0x12
[  284.338335][ T4699]  ? load_image+0x3b0/0x3b0
[  284.342856][ T4699]  sysfs_create_dir_ns+0x252/0x280
[  284.347966][ T4699]  ? sysfs_warn_dup+0xa0/0xa0
[  284.352638][ T4699]  ? kobject_set_name_vargs+0x5d/0x110
[  284.358087][ T4699]  ? do_raw_spin_unlock+0x11d/0x230
[  284.363285][ T4699]  kobject_add_internal+0x6b8/0xc80
[  284.368477][ T4699]  kobject_init_and_add+0x122/0x190
[  284.373667][ T4699]  ? lockdep_softirqs_off+0x420/0x420
[  284.379035][ T4699]  ? kobject_add+0x210/0x210
[  284.383617][ T4699]  ? __init_swait_queue_head+0xa5/0x150
[  284.389156][ T4699]  gfs2_sys_fs_add+0x234/0x480
[  284.393919][ T4699]  ? gfs2_recover_set+0x240/0x240
[  284.398935][ T4699]  ? snprintf+0xd7/0x120
[  284.403169][ T4699]  ? vscnprintf+0x80/0x80
[  284.407497][ T4699]  gfs2_fill_super+0x126f/0x1f80
[  284.412441][ T4699]  ? gfs2_reconfigure+0xcd0/0xcd0
[  284.417467][ T4699]  ? sb_set_blocksize+0xa5/0xe0
[  284.422315][ T4699]  get_tree_bdev+0x3f1/0x610
[  284.426897][ T4699]  ? gfs2_reconfigure+0xcd0/0xcd0
[  284.431916][ T4699]  gfs2_get_tree+0x4d/0x1e0
[  284.436415][ T4699]  vfs_get_tree+0x88/0x270
[  284.440822][ T4699]  do_new_mount+0x24a/0xa40
[  284.445321][ T4699]  __se_sys_mount+0x2d6/0x3c0
[  284.449990][ T4699]  ? __x64_sys_mount+0xc0/0xc0
[  284.454745][ T4699]  ? lockdep_hardirqs_on+0x94/0x140
[  284.459931][ T4699]  ? __x64_sys_mount+0x1c/0xc0
[  284.464685][ T4699]  do_syscall_64+0x4c/0xa0
[  284.469095][ T4699]  ? clear_bhb_loop+0x60/0xb0
[  284.473762][ T4699]  ? clear_bhb_loop+0x60/0xb0
[  284.478431][ T4699]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  284.484316][ T4699] RIP: 0033:0x7fe407f90eea
[  284.488720][ T4699] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  284.508317][ T4699] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  284.516719][ T4699] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  284.524680][ T4699] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  284.532640][ T4699] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  284.540602][ T4699] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  284.548572][ T4699] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  284.556543][ T4699]  </TASK>
[  284.562023][ T4699] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  284.575716][ T4699] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  284.847044][ T4700] loop1: detected capacity change from 0 to 32768
[  284.864753][ T4700] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  284.872333][ T4700] CPU: 0 PID: 4700 Comm: syz.1.234 Not tainted syzkaller #0
[  284.879638][ T4700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  284.889708][ T4700] Call Trace:
[  284.893005][ T4700]  <TASK>
[  284.895947][ T4700]  dump_stack_lvl+0x168/0x22e
[  284.900649][ T4700]  ? show_regs_print_info+0x12/0x12
[  284.905867][ T4700]  ? load_image+0x3b0/0x3b0
[  284.910395][ T4700]  sysfs_create_dir_ns+0x252/0x280
[  284.915528][ T4700]  ? sysfs_warn_dup+0xa0/0xa0
[  284.920306][ T4700]  ? kobject_set_name_vargs+0x5d/0x110
[  284.925784][ T4700]  ? do_raw_spin_unlock+0x11d/0x230
[  284.931008][ T4700]  kobject_add_internal+0x6b8/0xc80
[  284.936225][ T4700]  kobject_init_and_add+0x122/0x190
[  284.941437][ T4700]  ? lockdep_softirqs_off+0x420/0x420
[  284.946831][ T4700]  ? kobject_add+0x210/0x210
[  284.951442][ T4700]  ? __init_swait_queue_head+0xa5/0x150
[  284.957011][ T4700]  gfs2_sys_fs_add+0x234/0x480
[  284.961795][ T4700]  ? gfs2_recover_set+0x240/0x240
[  284.966835][ T4700]  ? snprintf+0xd7/0x120
[  284.971093][ T4700]  ? vscnprintf+0x80/0x80
[  284.975456][ T4700]  gfs2_fill_super+0x126f/0x1f80
[  284.980428][ T4700]  ? gfs2_reconfigure+0xcd0/0xcd0
[  284.985481][ T4700]  ? sb_set_blocksize+0xa5/0xe0
[  284.990349][ T4700]  get_tree_bdev+0x3f1/0x610
[  284.994950][ T4700]  ? gfs2_reconfigure+0xcd0/0xcd0
[  284.999990][ T4700]  gfs2_get_tree+0x4d/0x1e0
[  285.004514][ T4700]  vfs_get_tree+0x88/0x270
[  285.008953][ T4700]  do_new_mount+0x24a/0xa40
[  285.013474][ T4700]  __se_sys_mount+0x2d6/0x3c0
[  285.018162][ T4700]  ? __x64_sys_mount+0xc0/0xc0
[  285.022917][ T4700]  ? lockdep_hardirqs_on+0x94/0x140
[  285.028094][ T4700]  ? __x64_sys_mount+0x1c/0xc0
[  285.032843][ T4700]  do_syscall_64+0x4c/0xa0
[  285.037261][ T4700]  ? clear_bhb_loop+0x60/0xb0
[  285.041919][ T4700]  ? clear_bhb_loop+0x60/0xb0
[  285.046577][ T4700]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  285.052457][ T4700] RIP: 0033:0x7fe407f90eea
[  285.056853][ T4700] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  285.076451][ T4700] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  285.084935][ T4700] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  285.092888][ T4700] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  285.100838][ T4700] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  285.108791][ T4700] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  285.116743][ T4700] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  285.124707][ T4700]  </TASK>
[  285.134841][ T4700] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  285.148560][ T4700] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/12/26 00:16:33 executed programs: 220
[  285.468404][ T4701] loop1: detected capacity change from 0 to 32768
[  285.482169][ T4701] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  285.489592][ T4701] CPU: 0 PID: 4701 Comm: syz.1.235 Not tainted syzkaller #0
[  285.496891][ T4701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  285.506962][ T4701] Call Trace:
[  285.510267][ T4701]  <TASK>
[  285.513213][ T4701]  dump_stack_lvl+0x168/0x22e
[  285.517983][ T4701]  ? show_regs_print_info+0x12/0x12
[  285.523216][ T4701]  ? load_image+0x3b0/0x3b0
[  285.527752][ T4701]  sysfs_create_dir_ns+0x252/0x280
[  285.532887][ T4701]  ? sysfs_warn_dup+0xa0/0xa0
[  285.537578][ T4701]  ? preempt_schedule_thunk+0x16/0x18
[  285.542976][ T4701]  kobject_add_internal+0x6b8/0xc80
[  285.548203][ T4701]  kobject_init_and_add+0x122/0x190
[  285.553423][ T4701]  ? lockdep_softirqs_off+0x420/0x420
[  285.558819][ T4701]  ? kobject_add+0x210/0x210
[  285.563433][ T4701]  ? __init_swait_queue_head+0xa5/0x150
[  285.569004][ T4701]  gfs2_sys_fs_add+0x234/0x480
[  285.573798][ T4701]  ? gfs2_recover_set+0x240/0x240
[  285.578840][ T4701]  ? snprintf+0xd7/0x120
[  285.583103][ T4701]  ? vscnprintf+0x80/0x80
[  285.587456][ T4701]  gfs2_fill_super+0x126f/0x1f80
[  285.592422][ T4701]  ? gfs2_reconfigure+0xcd0/0xcd0
[  285.597458][ T4701]  ? sb_set_blocksize+0xa5/0xe0
[  285.602305][ T4701]  get_tree_bdev+0x3f1/0x610
[  285.606890][ T4701]  ? gfs2_reconfigure+0xcd0/0xcd0
[  285.611912][ T4701]  gfs2_get_tree+0x4d/0x1e0
[  285.616413][ T4701]  vfs_get_tree+0x88/0x270
[  285.620824][ T4701]  do_new_mount+0x24a/0xa40
[  285.625327][ T4701]  __se_sys_mount+0x2d6/0x3c0
[  285.630001][ T4701]  ? __x64_sys_mount+0xc0/0xc0
[  285.634760][ T4701]  ? lockdep_hardirqs_on+0x94/0x140
[  285.639946][ T4701]  ? __x64_sys_mount+0x1c/0xc0
[  285.644701][ T4701]  do_syscall_64+0x4c/0xa0
[  285.649113][ T4701]  ? clear_bhb_loop+0x60/0xb0
[  285.653781][ T4701]  ? clear_bhb_loop+0x60/0xb0
[  285.658449][ T4701]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  285.664335][ T4701] RIP: 0033:0x7fe407f90eea
[  285.668751][ T4701] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  285.688344][ T4701] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  285.696747][ T4701] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  285.704713][ T4701] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  285.712690][ T4701] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  285.720675][ T4701] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  285.728648][ T4701] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  285.736625][ T4701]  </TASK>
[  285.744347][ T4701] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  285.757971][ T4701] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  286.024508][ T4702] loop1: detected capacity change from 0 to 32768
[  286.042855][ T4702] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  286.050323][ T4702] CPU: 0 PID: 4702 Comm: syz.1.236 Not tainted syzkaller #0
[  286.057622][ T4702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  286.067692][ T4702] Call Trace:
[  286.070988][ T4702]  <TASK>
[  286.073934][ T4702]  dump_stack_lvl+0x168/0x22e
[  286.078637][ T4702]  ? show_regs_print_info+0x12/0x12
[  286.083865][ T4702]  ? load_image+0x3b0/0x3b0
[  286.088399][ T4702]  sysfs_create_dir_ns+0x252/0x280
[  286.093528][ T4702]  ? sysfs_warn_dup+0xa0/0xa0
[  286.098218][ T4702]  ? kobject_set_name_vargs+0x5d/0x110
[  286.103698][ T4702]  ? do_raw_spin_unlock+0x11d/0x230
[  286.108920][ T4702]  kobject_add_internal+0x6b8/0xc80
[  286.114139][ T4702]  kobject_init_and_add+0x122/0x190
[  286.119352][ T4702]  ? lockdep_softirqs_off+0x420/0x420
[  286.124746][ T4702]  ? kobject_add+0x210/0x210
[  286.129365][ T4702]  ? __init_swait_queue_head+0xa5/0x150
[  286.135019][ T4702]  gfs2_sys_fs_add+0x234/0x480
[  286.139807][ T4702]  ? gfs2_recover_set+0x240/0x240
[  286.144854][ T4702]  ? snprintf+0xd7/0x120
[  286.149116][ T4702]  ? vscnprintf+0x80/0x80
[  286.153481][ T4702]  gfs2_fill_super+0x126f/0x1f80
[  286.158456][ T4702]  ? gfs2_reconfigure+0xcd0/0xcd0
[  286.163509][ T4702]  ? sb_set_blocksize+0xa5/0xe0
[  286.168377][ T4702]  get_tree_bdev+0x3f1/0x610
[  286.172981][ T4702]  ? gfs2_reconfigure+0xcd0/0xcd0
[  286.178030][ T4702]  gfs2_get_tree+0x4d/0x1e0
[  286.182644][ T4702]  vfs_get_tree+0x88/0x270
[  286.187075][ T4702]  do_new_mount+0x24a/0xa40
[  286.191596][ T4702]  __se_sys_mount+0x2d6/0x3c0
[  286.196287][ T4702]  ? __x64_sys_mount+0xc0/0xc0
[  286.201072][ T4702]  ? lockdep_hardirqs_on+0x94/0x140
[  286.206270][ T4702]  ? __x64_sys_mount+0x1c/0xc0
[  286.211046][ T4702]  do_syscall_64+0x4c/0xa0
[  286.215468][ T4702]  ? clear_bhb_loop+0x60/0xb0
[  286.220128][ T4702]  ? clear_bhb_loop+0x60/0xb0
[  286.224789][ T4702]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  286.230669][ T4702] RIP: 0033:0x7fe407f90eea
[  286.235069][ T4702] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  286.254663][ T4702] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  286.263064][ T4702] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  286.271028][ T4702] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  286.278997][ T4702] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  286.286957][ T4702] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  286.294917][ T4702] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  286.302881][ T4702]  </TASK>
[  286.309004][ T4702] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  286.322168][ T4702] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  286.629847][ T4703] loop1: detected capacity change from 0 to 32768
[  286.648569][ T4703] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  286.656776][ T4703] CPU: 0 PID: 4703 Comm: syz.1.237 Not tainted syzkaller #0
[  286.664083][ T4703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  286.674135][ T4703] Call Trace:
[  286.677414][ T4703]  <TASK>
[  286.680348][ T4703]  dump_stack_lvl+0x168/0x22e
[  286.685027][ T4703]  ? show_regs_print_info+0x12/0x12
[  286.690219][ T4703]  ? load_image+0x3b0/0x3b0
[  286.694722][ T4703]  sysfs_create_dir_ns+0x252/0x280
[  286.699830][ T4703]  ? sysfs_warn_dup+0xa0/0xa0
[  286.704499][ T4703]  ? kobject_set_name_vargs+0x5d/0x110
[  286.709948][ T4703]  ? do_raw_spin_unlock+0x11d/0x230
[  286.715146][ T4703]  kobject_add_internal+0x6b8/0xc80
[  286.720340][ T4703]  kobject_init_and_add+0x122/0x190
[  286.725528][ T4703]  ? lockdep_softirqs_off+0x420/0x420
[  286.730906][ T4703]  ? kobject_add+0x210/0x210
[  286.735514][ T4703]  ? __init_swait_queue_head+0xa5/0x150
[  286.741074][ T4703]  gfs2_sys_fs_add+0x234/0x480
[  286.745844][ T4703]  ? gfs2_recover_set+0x240/0x240
[  286.750865][ T4703]  ? snprintf+0xd7/0x120
[  286.755107][ T4703]  ? vscnprintf+0x80/0x80
[  286.759441][ T4703]  gfs2_fill_super+0x126f/0x1f80
[  286.764386][ T4703]  ? gfs2_reconfigure+0xcd0/0xcd0
[  286.769414][ T4703]  ? sb_set_blocksize+0xa5/0xe0
[  286.774258][ T4703]  get_tree_bdev+0x3f1/0x610
[  286.778839][ T4703]  ? gfs2_reconfigure+0xcd0/0xcd0
[  286.783859][ T4703]  gfs2_get_tree+0x4d/0x1e0
[  286.788377][ T4703]  vfs_get_tree+0x88/0x270
[  286.792796][ T4703]  do_new_mount+0x24a/0xa40
[  286.797299][ T4703]  __se_sys_mount+0x2d6/0x3c0
[  286.801984][ T4703]  ? __x64_sys_mount+0xc0/0xc0
[  286.806749][ T4703]  ? lockdep_hardirqs_on+0x94/0x140
[  286.811955][ T4703]  ? __x64_sys_mount+0x1c/0xc0
[  286.816722][ T4703]  do_syscall_64+0x4c/0xa0
[  286.821139][ T4703]  ? clear_bhb_loop+0x60/0xb0
[  286.825816][ T4703]  ? clear_bhb_loop+0x60/0xb0
[  286.830493][ T4703]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  286.836386][ T4703] RIP: 0033:0x7fe407f90eea
[  286.840806][ T4703] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  286.860417][ T4703] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  286.868828][ T4703] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  286.876796][ T4703] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  286.884760][ T4703] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  286.892726][ T4703] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  286.900687][ T4703] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  286.908661][ T4703]  </TASK>
[  286.915841][ T4703] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  286.932026][ T4703] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  287.206893][ T4704] loop1: detected capacity change from 0 to 32768
[  287.224922][ T4704] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  287.232453][ T4704] CPU: 0 PID: 4704 Comm: syz.1.238 Not tainted syzkaller #0
[  287.239744][ T4704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  287.249812][ T4704] Call Trace:
[  287.253105][ T4704]  <TASK>
[  287.256050][ T4704]  dump_stack_lvl+0x168/0x22e
[  287.260754][ T4704]  ? show_regs_print_info+0x12/0x12
[  287.265977][ T4704]  ? load_image+0x3b0/0x3b0
[  287.270514][ T4704]  sysfs_create_dir_ns+0x252/0x280
[  287.275648][ T4704]  ? sysfs_warn_dup+0xa0/0xa0
[  287.280342][ T4704]  ? kobject_set_name_vargs+0x5d/0x110
[  287.285816][ T4704]  ? do_raw_spin_unlock+0x11d/0x230
[  287.291035][ T4704]  kobject_add_internal+0x6b8/0xc80
[  287.296255][ T4704]  kobject_init_and_add+0x122/0x190
[  287.301464][ T4704]  ? lockdep_softirqs_off+0x420/0x420
[  287.306863][ T4704]  ? kobject_add+0x210/0x210
[  287.311475][ T4704]  ? __init_swait_queue_head+0xa5/0x150
[  287.317045][ T4704]  gfs2_sys_fs_add+0x234/0x480
[  287.321832][ T4704]  ? gfs2_recover_set+0x240/0x240
[  287.326875][ T4704]  ? snprintf+0xd7/0x120
[  287.331132][ T4704]  ? vscnprintf+0x80/0x80
[  287.335487][ T4704]  gfs2_fill_super+0x126f/0x1f80
[  287.340456][ T4704]  ? gfs2_reconfigure+0xcd0/0xcd0
[  287.345599][ T4704]  ? sb_set_blocksize+0xa5/0xe0
[  287.350467][ T4704]  get_tree_bdev+0x3f1/0x610
[  287.355074][ T4704]  ? gfs2_reconfigure+0xcd0/0xcd0
[  287.360120][ T4704]  gfs2_get_tree+0x4d/0x1e0
[  287.364644][ T4704]  vfs_get_tree+0x88/0x270
[  287.369074][ T4704]  do_new_mount+0x24a/0xa40
[  287.373596][ T4704]  __se_sys_mount+0x2d6/0x3c0
[  287.378299][ T4704]  ? __x64_sys_mount+0xc0/0xc0
[  287.383079][ T4704]  ? lockdep_hardirqs_on+0x94/0x140
[  287.388282][ T4704]  ? __x64_sys_mount+0x1c/0xc0
[  287.393033][ T4704]  do_syscall_64+0x4c/0xa0
[  287.397520][ T4704]  ? clear_bhb_loop+0x60/0xb0
[  287.402188][ T4704]  ? clear_bhb_loop+0x60/0xb0
[  287.406847][ T4704]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  287.412722][ T4704] RIP: 0033:0x7fe407f90eea
[  287.417118][ T4704] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  287.436708][ T4704] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  287.445106][ T4704] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  287.453063][ T4704] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  287.461025][ T4704] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  287.468991][ T4704] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  287.476944][ T4704] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  287.484907][ T4704]  </TASK>
[  287.490800][ T4704] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  287.504267][ T4704] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  287.810258][ T4705] loop1: detected capacity change from 0 to 32768
[  287.827520][ T4705] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  287.835053][ T4705] CPU: 1 PID: 4705 Comm: syz.1.239 Not tainted syzkaller #0
[  287.842356][ T4705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  287.852428][ T4705] Call Trace:
[  287.855724][ T4705]  <TASK>
[  287.858663][ T4705]  dump_stack_lvl+0x168/0x22e
[  287.863386][ T4705]  ? show_regs_print_info+0x12/0x12
[  287.868603][ T4705]  ? load_image+0x3b0/0x3b0
[  287.873132][ T4705]  sysfs_create_dir_ns+0x252/0x280
[  287.878260][ T4705]  ? sysfs_warn_dup+0xa0/0xa0
[  287.882954][ T4705]  ? kobject_set_name_vargs+0x5d/0x110
[  287.888429][ T4705]  ? do_raw_spin_unlock+0x11d/0x230
[  287.893648][ T4705]  kobject_add_internal+0x6b8/0xc80
[  287.898870][ T4705]  kobject_init_and_add+0x122/0x190
[  287.904083][ T4705]  ? lockdep_softirqs_off+0x420/0x420
[  287.909476][ T4705]  ? kobject_add+0x210/0x210
[  287.914085][ T4705]  ? __init_swait_queue_head+0xa5/0x150
[  287.919651][ T4705]  gfs2_sys_fs_add+0x234/0x480
[  287.924436][ T4705]  ? gfs2_recover_set+0x240/0x240
[  287.929479][ T4705]  ? snprintf+0xd7/0x120
[  287.933740][ T4705]  ? vscnprintf+0x80/0x80
[  287.938101][ T4705]  gfs2_fill_super+0x126f/0x1f80
[  287.943075][ T4705]  ? gfs2_reconfigure+0xcd0/0xcd0
[  287.948125][ T4705]  ? sb_set_blocksize+0xa5/0xe0
[  287.952982][ T4705]  get_tree_bdev+0x3f1/0x610
[  287.957570][ T4705]  ? gfs2_reconfigure+0xcd0/0xcd0
[  287.962591][ T4705]  gfs2_get_tree+0x4d/0x1e0
[  287.967094][ T4705]  vfs_get_tree+0x88/0x270
[  287.971502][ T4705]  do_new_mount+0x24a/0xa40
[  287.976030][ T4705]  __se_sys_mount+0x2d6/0x3c0
[  287.980700][ T4705]  ? __x64_sys_mount+0xc0/0xc0
[  287.985458][ T4705]  ? lockdep_hardirqs_on+0x94/0x140
[  287.990653][ T4705]  ? __x64_sys_mount+0x1c/0xc0
[  287.995411][ T4705]  do_syscall_64+0x4c/0xa0
[  287.999823][ T4705]  ? clear_bhb_loop+0x60/0xb0
[  288.004492][ T4705]  ? clear_bhb_loop+0x60/0xb0
[  288.009163][ T4705]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  288.015050][ T4705] RIP: 0033:0x7fe407f90eea
[  288.019457][ T4705] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  288.039056][ T4705] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  288.047460][ T4705] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  288.055425][ T4705] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  288.063386][ T4705] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  288.071347][ T4705] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  288.079309][ T4705] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  288.087282][ T4705]  </TASK>
[  288.092769][ T4705] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  288.111572][ T4705] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  288.361370][ T4707] loop1: detected capacity change from 0 to 32768
[  288.377796][ T4707] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  288.385336][ T4707] CPU: 1 PID: 4707 Comm: syz.1.240 Not tainted syzkaller #0
[  288.392636][ T4707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  288.402707][ T4707] Call Trace:
[  288.406001][ T4707]  <TASK>
[  288.408948][ T4707]  dump_stack_lvl+0x168/0x22e
[  288.413655][ T4707]  ? show_regs_print_info+0x12/0x12
[  288.418873][ T4707]  ? load_image+0x3b0/0x3b0
[  288.423400][ T4707]  sysfs_create_dir_ns+0x252/0x280
[  288.428529][ T4707]  ? sysfs_warn_dup+0xa0/0xa0
[  288.433223][ T4707]  ? kobject_set_name_vargs+0x5d/0x110
[  288.438694][ T4707]  ? do_raw_spin_unlock+0x11d/0x230
[  288.443922][ T4707]  kobject_add_internal+0x6b8/0xc80
[  288.449137][ T4707]  kobject_init_and_add+0x122/0x190
[  288.454345][ T4707]  ? lockdep_softirqs_off+0x420/0x420
[  288.459738][ T4707]  ? kobject_add+0x210/0x210
[  288.464359][ T4707]  ? __init_swait_queue_head+0xa5/0x150
[  288.469927][ T4707]  gfs2_sys_fs_add+0x234/0x480
[  288.474712][ T4707]  ? gfs2_recover_set+0x240/0x240
[  288.479763][ T4707]  ? snprintf+0xd7/0x120
[  288.484027][ T4707]  ? vscnprintf+0x80/0x80
[  288.488382][ T4707]  gfs2_fill_super+0x126f/0x1f80
[  288.493353][ T4707]  ? gfs2_reconfigure+0xcd0/0xcd0
[  288.498403][ T4707]  ? sb_set_blocksize+0xa5/0xe0
[  288.503269][ T4707]  get_tree_bdev+0x3f1/0x610
[  288.507872][ T4707]  ? gfs2_reconfigure+0xcd0/0xcd0
[  288.512917][ T4707]  gfs2_get_tree+0x4d/0x1e0
[  288.517438][ T4707]  vfs_get_tree+0x88/0x270
[  288.521868][ T4707]  do_new_mount+0x24a/0xa40
[  288.526384][ T4707]  __se_sys_mount+0x2d6/0x3c0
[  288.531074][ T4707]  ? __x64_sys_mount+0xc0/0xc0
[  288.535853][ T4707]  ? lockdep_hardirqs_on+0x94/0x140
[  288.541061][ T4707]  ? __x64_sys_mount+0x1c/0xc0
[  288.545829][ T4707]  do_syscall_64+0x4c/0xa0
[  288.550230][ T4707]  ? clear_bhb_loop+0x60/0xb0
[  288.554892][ T4707]  ? clear_bhb_loop+0x60/0xb0
[  288.559561][ T4707]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  288.565437][ T4707] RIP: 0033:0x7fe407f90eea
[  288.569836][ T4707] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  288.589425][ T4707] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  288.597826][ T4707] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  288.605889][ T4707] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  288.613867][ T4707] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  288.621836][ T4707] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  288.629810][ T4707] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  288.637774][ T4707]  </TASK>
[  288.641882][ T4707] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  288.655412][ T4707] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  288.961298][ T4709] loop1: detected capacity change from 0 to 32768
[  288.972396][ T4709] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  288.980515][ T4709] CPU: 1 PID: 4709 Comm: syz.1.241 Not tainted syzkaller #0
[  288.987825][ T4709] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  288.997891][ T4709] Call Trace:
[  289.001184][ T4709]  <TASK>
[  289.004126][ T4709]  dump_stack_lvl+0x168/0x22e
[  289.008829][ T4709]  ? show_regs_print_info+0x12/0x12
[  289.014054][ T4709]  ? load_image+0x3b0/0x3b0
[  289.018592][ T4709]  sysfs_create_dir_ns+0x252/0x280
[  289.023731][ T4709]  ? sysfs_warn_dup+0xa0/0xa0
[  289.028423][ T4709]  ? kobject_set_name_vargs+0x5d/0x110
[  289.033890][ T4709]  ? do_raw_spin_unlock+0x11d/0x230
[  289.039089][ T4709]  kobject_add_internal+0x6b8/0xc80
[  289.044288][ T4709]  kobject_init_and_add+0x122/0x190
[  289.049476][ T4709]  ? lockdep_softirqs_off+0x420/0x420
[  289.054847][ T4709]  ? kobject_add+0x210/0x210
[  289.059439][ T4709]  ? __init_swait_queue_head+0xa5/0x150
[  289.064981][ T4709]  gfs2_sys_fs_add+0x234/0x480
[  289.069744][ T4709]  ? gfs2_recover_set+0x240/0x240
[  289.074761][ T4709]  ? snprintf+0xd7/0x120
[  289.078999][ T4709]  ? vscnprintf+0x80/0x80
[  289.083328][ T4709]  gfs2_fill_super+0x126f/0x1f80
[  289.088270][ T4709]  ? gfs2_reconfigure+0xcd0/0xcd0
[  289.093296][ T4709]  ? sb_set_blocksize+0xa5/0xe0
[  289.098140][ T4709]  get_tree_bdev+0x3f1/0x610
[  289.102723][ T4709]  ? gfs2_reconfigure+0xcd0/0xcd0
[  289.107744][ T4709]  gfs2_get_tree+0x4d/0x1e0
[  289.112248][ T4709]  vfs_get_tree+0x88/0x270
[  289.116660][ T4709]  do_new_mount+0x24a/0xa40
[  289.121164][ T4709]  __se_sys_mount+0x2d6/0x3c0
[  289.125835][ T4709]  ? __x64_sys_mount+0xc0/0xc0
[  289.130590][ T4709]  ? lockdep_hardirqs_on+0x94/0x140
[  289.135780][ T4709]  ? __x64_sys_mount+0x1c/0xc0
[  289.140535][ T4709]  do_syscall_64+0x4c/0xa0
[  289.144948][ T4709]  ? clear_bhb_loop+0x60/0xb0
[  289.149619][ T4709]  ? clear_bhb_loop+0x60/0xb0
[  289.154289][ T4709]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  289.160176][ T4709] RIP: 0033:0x7fe407f90eea
[  289.164581][ T4709] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  289.184181][ T4709] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  289.192587][ T4709] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  289.200550][ T4709] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  289.208513][ T4709] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  289.216505][ T4709] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  289.224470][ T4709] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  289.232444][ T4709]  </TASK>
[  289.240007][ T4709] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  289.264213][ T4709] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  289.518040][ T4711] loop1: detected capacity change from 0 to 32768
[  289.528997][ T4711] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  289.540101][ T4711] CPU: 1 PID: 4711 Comm: syz.1.242 Not tainted syzkaller #0
[  289.547413][ T4711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  289.557479][ T4711] Call Trace:
[  289.560777][ T4711]  <TASK>
[  289.563730][ T4711]  dump_stack_lvl+0x168/0x22e
[  289.568431][ T4711]  ? show_regs_print_info+0x12/0x12
[  289.573656][ T4711]  ? load_image+0x3b0/0x3b0
[  289.578190][ T4711]  sysfs_create_dir_ns+0x252/0x280
[  289.583323][ T4711]  ? sysfs_warn_dup+0xa0/0xa0
[  289.588014][ T4711]  ? kobject_set_name_vargs+0x5d/0x110
[  289.593481][ T4711]  ? do_raw_spin_unlock+0x11d/0x230
[  289.598689][ T4711]  kobject_add_internal+0x6b8/0xc80
[  289.603887][ T4711]  kobject_init_and_add+0x122/0x190
[  289.609081][ T4711]  ? lockdep_softirqs_off+0x420/0x420
[  289.614449][ T4711]  ? kobject_add+0x210/0x210
[  289.619037][ T4711]  ? __init_swait_queue_head+0xa5/0x150
[  289.624584][ T4711]  gfs2_sys_fs_add+0x234/0x480
[  289.629350][ T4711]  ? gfs2_recover_set+0x240/0x240
[  289.634368][ T4711]  ? snprintf+0xd7/0x120
[  289.638605][ T4711]  ? vscnprintf+0x80/0x80
[  289.642938][ T4711]  gfs2_fill_super+0x126f/0x1f80
[  289.647888][ T4711]  ? gfs2_reconfigure+0xcd0/0xcd0
[  289.652917][ T4711]  ? sb_set_blocksize+0xa5/0xe0
[  289.657763][ T4711]  get_tree_bdev+0x3f1/0x610
[  289.662359][ T4711]  ? gfs2_reconfigure+0xcd0/0xcd0
[  289.667394][ T4711]  gfs2_get_tree+0x4d/0x1e0
[  289.671896][ T4711]  vfs_get_tree+0x88/0x270
[  289.676306][ T4711]  do_new_mount+0x24a/0xa40
[  289.680804][ T4711]  __se_sys_mount+0x2d6/0x3c0
[  289.685475][ T4711]  ? __x64_sys_mount+0xc0/0xc0
[  289.690231][ T4711]  ? lockdep_hardirqs_on+0x94/0x140
[  289.695421][ T4711]  ? __x64_sys_mount+0x1c/0xc0
[  289.700185][ T4711]  do_syscall_64+0x4c/0xa0
[  289.704596][ T4711]  ? clear_bhb_loop+0x60/0xb0
[  289.709268][ T4711]  ? clear_bhb_loop+0x60/0xb0
[  289.713936][ T4711]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  289.719820][ T4711] RIP: 0033:0x7fe407f90eea
[  289.724226][ T4711] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  289.743946][ T4711] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  289.752383][ T4711] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  289.760621][ T4711] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  289.768591][ T4711] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  289.776559][ T4711] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  289.784521][ T4711] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  289.792494][ T4711]  </TASK>
[  289.798259][ T4711] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  289.811742][ T4711] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  290.078822][ T4713] loop1: detected capacity change from 0 to 32768
[  290.093379][ T4713] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  290.100788][ T4713] CPU: 1 PID: 4713 Comm: syz.1.243 Not tainted syzkaller #0
[  290.108098][ T4713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  290.118173][ T4713] Call Trace:
[  290.121465][ T4713]  <TASK>
[  290.124404][ T4713]  dump_stack_lvl+0x168/0x22e
[  290.129103][ T4713]  ? show_regs_print_info+0x12/0x12
[  290.134323][ T4713]  ? load_image+0x3b0/0x3b0
[  290.138850][ T4713]  sysfs_create_dir_ns+0x252/0x280
[  290.143976][ T4713]  ? sysfs_warn_dup+0xa0/0xa0
[  290.148666][ T4713]  ? kobject_set_name_vargs+0x5d/0x110
[  290.154139][ T4713]  ? do_raw_spin_unlock+0x11d/0x230
[  290.159357][ T4713]  kobject_add_internal+0x6b8/0xc80
[  290.164580][ T4713]  kobject_init_and_add+0x122/0x190
[  290.169789][ T4713]  ? lockdep_softirqs_off+0x420/0x420
[  290.175184][ T4713]  ? kobject_add+0x210/0x210
[  290.179799][ T4713]  ? __init_swait_queue_head+0xa5/0x150
[  290.185369][ T4713]  gfs2_sys_fs_add+0x234/0x480
[  290.190154][ T4713]  ? gfs2_recover_set+0x240/0x240
[  290.195191][ T4713]  ? snprintf+0xd7/0x120
[  290.199454][ T4713]  ? vscnprintf+0x80/0x80
[  290.203800][ T4713]  gfs2_fill_super+0x126f/0x1f80
[  290.208751][ T4713]  ? gfs2_reconfigure+0xcd0/0xcd0
[  290.213775][ T4713]  ? sb_set_blocksize+0xa5/0xe0
[  290.218623][ T4713]  get_tree_bdev+0x3f1/0x610
[  290.223206][ T4713]  ? gfs2_reconfigure+0xcd0/0xcd0
[  290.228311][ T4713]  gfs2_get_tree+0x4d/0x1e0
[  290.232810][ T4713]  vfs_get_tree+0x88/0x270
[  290.237218][ T4713]  do_new_mount+0x24a/0xa40
[  290.241716][ T4713]  __se_sys_mount+0x2d6/0x3c0
[  290.246385][ T4713]  ? __x64_sys_mount+0xc0/0xc0
[  290.251140][ T4713]  ? lockdep_hardirqs_on+0x94/0x140
[  290.256327][ T4713]  ? __x64_sys_mount+0x1c/0xc0
[  290.261083][ T4713]  do_syscall_64+0x4c/0xa0
[  290.265493][ T4713]  ? clear_bhb_loop+0x60/0xb0
[  290.270163][ T4713]  ? clear_bhb_loop+0x60/0xb0
[  290.274833][ T4713]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  290.281151][ T4713] RIP: 0033:0x7fe407f90eea
[  290.285555][ T4713] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  290.305154][ T4713] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  290.313554][ T4713] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  290.321516][ T4713] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  290.329473][ T4713] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  290.337430][ T4713] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  290.345387][ T4713] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  290.353358][ T4713]  </TASK>
[  290.358482][ T4713] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  290.377615][ T4713] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/12/26 00:16:38 executed programs: 229
[  290.680062][ T4715] loop1: detected capacity change from 0 to 32768
[  290.691389][ T4715] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  290.699601][ T4715] CPU: 1 PID: 4715 Comm: syz.1.244 Not tainted syzkaller #0
[  290.706908][ T4715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  290.716985][ T4715] Call Trace:
[  290.720281][ T4715]  <TASK>
[  290.723226][ T4715]  dump_stack_lvl+0x168/0x22e
[  290.727928][ T4715]  ? show_regs_print_info+0x12/0x12
[  290.733149][ T4715]  ? load_image+0x3b0/0x3b0
[  290.737683][ T4715]  sysfs_create_dir_ns+0x252/0x280
[  290.742814][ T4715]  ? sysfs_warn_dup+0xa0/0xa0
[  290.747508][ T4715]  ? kobject_set_name_vargs+0x5d/0x110
[  290.752991][ T4715]  ? do_raw_spin_unlock+0x11d/0x230
[  290.758200][ T4715]  kobject_add_internal+0x6b8/0xc80
[  290.763399][ T4715]  kobject_init_and_add+0x122/0x190
[  290.768604][ T4715]  ? lockdep_softirqs_off+0x420/0x420
[  290.773992][ T4715]  ? kobject_add+0x210/0x210
[  290.778583][ T4715]  ? __init_swait_queue_head+0xa5/0x150
[  290.784132][ T4715]  gfs2_sys_fs_add+0x234/0x480
[  290.788904][ T4715]  ? gfs2_recover_set+0x240/0x240
[  290.793930][ T4715]  ? snprintf+0xd7/0x120
[  290.798170][ T4715]  ? vscnprintf+0x80/0x80
[  290.802500][ T4715]  gfs2_fill_super+0x126f/0x1f80
[  290.807450][ T4715]  ? gfs2_reconfigure+0xcd0/0xcd0
[  290.812474][ T4715]  ? sb_set_blocksize+0xa5/0xe0
[  290.817321][ T4715]  get_tree_bdev+0x3f1/0x610
[  290.821903][ T4715]  ? gfs2_reconfigure+0xcd0/0xcd0
[  290.826921][ T4715]  gfs2_get_tree+0x4d/0x1e0
[  290.831420][ T4715]  vfs_get_tree+0x88/0x270
[  290.835829][ T4715]  do_new_mount+0x24a/0xa40
[  290.840328][ T4715]  __se_sys_mount+0x2d6/0x3c0
[  290.844998][ T4715]  ? __x64_sys_mount+0xc0/0xc0
[  290.849757][ T4715]  ? lockdep_hardirqs_on+0x94/0x140
[  290.854955][ T4715]  ? __x64_sys_mount+0x1c/0xc0
[  290.859713][ T4715]  do_syscall_64+0x4c/0xa0
[  290.864128][ T4715]  ? clear_bhb_loop+0x60/0xb0
[  290.868798][ T4715]  ? clear_bhb_loop+0x60/0xb0
[  290.873473][ T4715]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  290.879362][ T4715] RIP: 0033:0x7fe407f90eea
[  290.883789][ T4715] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  290.903390][ T4715] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  290.911809][ T4715] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  290.919780][ T4715] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  290.927741][ T4715] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  290.935707][ T4715] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  290.943668][ T4715] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  290.951645][ T4715]  </TASK>
[  290.961372][ T4715] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  290.985068][ T4715] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  291.281252][ T4716] loop1: detected capacity change from 0 to 32768
[  291.293500][ T4716] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  291.301019][ T4716] CPU: 1 PID: 4716 Comm: syz.1.245 Not tainted syzkaller #0
[  291.308322][ T4716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  291.318392][ T4716] Call Trace:
[  291.321685][ T4716]  <TASK>
[  291.324634][ T4716]  dump_stack_lvl+0x168/0x22e
[  291.329340][ T4716]  ? show_regs_print_info+0x12/0x12
[  291.334576][ T4716]  ? load_image+0x3b0/0x3b0
[  291.339110][ T4716]  sysfs_create_dir_ns+0x252/0x280
[  291.344244][ T4716]  ? sysfs_warn_dup+0xa0/0xa0
[  291.348945][ T4716]  ? kobject_set_name_vargs+0x5d/0x110
[  291.354417][ T4716]  ? do_raw_spin_unlock+0x11d/0x230
[  291.359639][ T4716]  kobject_add_internal+0x6b8/0xc80
[  291.364856][ T4716]  kobject_init_and_add+0x122/0x190
[  291.370050][ T4716]  ? lockdep_softirqs_off+0x420/0x420
[  291.375420][ T4716]  ? kobject_add+0x210/0x210
[  291.380010][ T4716]  ? __init_swait_queue_head+0xa5/0x150
[  291.385557][ T4716]  gfs2_sys_fs_add+0x234/0x480
[  291.390318][ T4716]  ? gfs2_recover_set+0x240/0x240
[  291.395336][ T4716]  ? snprintf+0xd7/0x120
[  291.399571][ T4716]  ? vscnprintf+0x80/0x80
[  291.403899][ T4716]  gfs2_fill_super+0x126f/0x1f80
[  291.408849][ T4716]  ? gfs2_reconfigure+0xcd0/0xcd0
[  291.413881][ T4716]  ? sb_set_blocksize+0xa5/0xe0
[  291.418731][ T4716]  get_tree_bdev+0x3f1/0x610
[  291.423318][ T4716]  ? gfs2_reconfigure+0xcd0/0xcd0
[  291.428340][ T4716]  gfs2_get_tree+0x4d/0x1e0
[  291.432842][ T4716]  vfs_get_tree+0x88/0x270
[  291.437250][ T4716]  do_new_mount+0x24a/0xa40
[  291.441751][ T4716]  __se_sys_mount+0x2d6/0x3c0
[  291.446421][ T4716]  ? __x64_sys_mount+0xc0/0xc0
[  291.451175][ T4716]  ? lockdep_hardirqs_on+0x94/0x140
[  291.456368][ T4716]  ? __x64_sys_mount+0x1c/0xc0
[  291.461146][ T4716]  do_syscall_64+0x4c/0xa0
[  291.465646][ T4716]  ? clear_bhb_loop+0x60/0xb0
[  291.470312][ T4716]  ? clear_bhb_loop+0x60/0xb0
[  291.474980][ T4716]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  291.480865][ T4716] RIP: 0033:0x7fe407f90eea
[  291.485272][ T4716] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  291.504869][ T4716] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  291.513276][ T4716] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  291.521235][ T4716] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  291.529195][ T4716] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  291.537154][ T4716] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  291.545115][ T4716] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  291.553085][ T4716]  </TASK>
[  291.563088][ T4716] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  291.577417][ T4716] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  291.837132][ T4718] loop1: detected capacity change from 0 to 32768
[  291.854744][ T4718] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  291.862270][ T4718] CPU: 0 PID: 4718 Comm: syz.1.246 Not tainted syzkaller #0
[  291.869572][ T4718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  291.879646][ T4718] Call Trace:
[  291.882943][ T4718]  <TASK>
[  291.885889][ T4718]  dump_stack_lvl+0x168/0x22e
[  291.890599][ T4718]  ? show_regs_print_info+0x12/0x12
[  291.895829][ T4718]  ? load_image+0x3b0/0x3b0
[  291.900360][ T4718]  sysfs_create_dir_ns+0x252/0x280
[  291.905493][ T4718]  ? sysfs_warn_dup+0xa0/0xa0
[  291.910193][ T4718]  ? kobject_set_name_vargs+0x5d/0x110
[  291.915669][ T4718]  ? do_raw_spin_unlock+0x11d/0x230
[  291.920890][ T4718]  kobject_add_internal+0x6b8/0xc80
[  291.926109][ T4718]  kobject_init_and_add+0x122/0x190
[  291.931324][ T4718]  ? lockdep_softirqs_off+0x420/0x420
[  291.936722][ T4718]  ? kobject_add+0x210/0x210
[  291.941337][ T4718]  ? __init_swait_queue_head+0xa5/0x150
[  291.946906][ T4718]  gfs2_sys_fs_add+0x234/0x480
[  291.951694][ T4718]  ? gfs2_recover_set+0x240/0x240
[  291.956737][ T4718]  ? snprintf+0xd7/0x120
[  291.960998][ T4718]  ? vscnprintf+0x80/0x80
[  291.965350][ T4718]  gfs2_fill_super+0x126f/0x1f80
[  291.970323][ T4718]  ? gfs2_reconfigure+0xcd0/0xcd0
[  291.975378][ T4718]  ? sb_set_blocksize+0xa5/0xe0
[  291.980249][ T4718]  get_tree_bdev+0x3f1/0x610
[  291.984857][ T4718]  ? gfs2_reconfigure+0xcd0/0xcd0
[  291.989906][ T4718]  gfs2_get_tree+0x4d/0x1e0
[  291.994426][ T4718]  vfs_get_tree+0x88/0x270
[  291.998853][ T4718]  do_new_mount+0x24a/0xa40
[  292.003384][ T4718]  __se_sys_mount+0x2d6/0x3c0
[  292.008067][ T4718]  ? __x64_sys_mount+0xc0/0xc0
[  292.012846][ T4718]  ? lockdep_hardirqs_on+0x94/0x140
[  292.018032][ T4718]  ? __x64_sys_mount+0x1c/0xc0
[  292.022779][ T4718]  do_syscall_64+0x4c/0xa0
[  292.027182][ T4718]  ? clear_bhb_loop+0x60/0xb0
[  292.031843][ T4718]  ? clear_bhb_loop+0x60/0xb0
[  292.036504][ T4718]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  292.042379][ T4718] RIP: 0033:0x7fe407f90eea
[  292.046784][ T4718] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  292.066375][ T4718] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  292.074774][ T4718] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  292.082728][ T4718] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  292.090680][ T4718] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  292.098631][ T4718] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  292.106591][ T4718] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  292.114554][ T4718]  </TASK>
[  292.125878][ T4718] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  292.139528][ T4718] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  292.430805][ T4719] loop1: detected capacity change from 0 to 32768
[  292.450332][ T4719] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  292.457899][ T4719] CPU: 1 PID: 4719 Comm: syz.1.247 Not tainted syzkaller #0
[  292.465203][ T4719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  292.475279][ T4719] Call Trace:
[  292.478575][ T4719]  <TASK>
[  292.481523][ T4719]  dump_stack_lvl+0x168/0x22e
[  292.486231][ T4719]  ? show_regs_print_info+0x12/0x12
[  292.491470][ T4719]  ? load_image+0x3b0/0x3b0
[  292.496015][ T4719]  sysfs_create_dir_ns+0x252/0x280
[  292.501156][ T4719]  ? sysfs_warn_dup+0xa0/0xa0
[  292.505869][ T4719]  ? kobject_set_name_vargs+0x5d/0x110
[  292.511369][ T4719]  ? do_raw_spin_unlock+0x11d/0x230
[  292.516845][ T4719]  kobject_add_internal+0x6b8/0xc80
[  292.522046][ T4719]  kobject_init_and_add+0x122/0x190
[  292.527240][ T4719]  ? lockdep_softirqs_off+0x420/0x420
[  292.532614][ T4719]  ? kobject_add+0x210/0x210
[  292.537200][ T4719]  ? __init_swait_queue_head+0xa5/0x150
[  292.542744][ T4719]  gfs2_sys_fs_add+0x234/0x480
[  292.547512][ T4719]  ? gfs2_recover_set+0x240/0x240
[  292.552533][ T4719]  ? snprintf+0xd7/0x120
[  292.556771][ T4719]  ? vscnprintf+0x80/0x80
[  292.561104][ T4719]  gfs2_fill_super+0x126f/0x1f80
[  292.566050][ T4719]  ? gfs2_reconfigure+0xcd0/0xcd0
[  292.571077][ T4719]  ? sb_set_blocksize+0xa5/0xe0
[  292.575923][ T4719]  get_tree_bdev+0x3f1/0x610
[  292.580511][ T4719]  ? gfs2_reconfigure+0xcd0/0xcd0
[  292.585535][ T4719]  gfs2_get_tree+0x4d/0x1e0
[  292.590037][ T4719]  vfs_get_tree+0x88/0x270
[  292.594449][ T4719]  do_new_mount+0x24a/0xa40
[  292.598949][ T4719]  __se_sys_mount+0x2d6/0x3c0
[  292.603621][ T4719]  ? __x64_sys_mount+0xc0/0xc0
[  292.608380][ T4719]  ? lockdep_hardirqs_on+0x94/0x140
[  292.613568][ T4719]  ? __x64_sys_mount+0x1c/0xc0
[  292.618326][ T4719]  do_syscall_64+0x4c/0xa0
[  292.622746][ T4719]  ? clear_bhb_loop+0x60/0xb0
[  292.627427][ T4719]  ? clear_bhb_loop+0x60/0xb0
[  292.632108][ T4719]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  292.638006][ T4719] RIP: 0033:0x7fe407f90eea
[  292.642416][ T4719] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  292.662274][ T4719] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  292.670680][ T4719] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  292.678641][ T4719] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  292.686606][ T4719] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  292.694590][ T4719] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  292.702555][ T4719] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  292.710539][ T4719]  </TASK>
[  292.715736][ T4719] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  292.729060][ T4719] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  293.067636][ T4720] loop1: detected capacity change from 0 to 32768
[  293.080186][ T4720] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  293.087667][ T4720] CPU: 0 PID: 4720 Comm: syz.1.248 Not tainted syzkaller #0
[  293.094969][ T4720] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  293.105041][ T4720] Call Trace:
[  293.108337][ T4720]  <TASK>
[  293.111304][ T4720]  dump_stack_lvl+0x168/0x22e
[  293.116009][ T4720]  ? show_regs_print_info+0x12/0x12
[  293.121234][ T4720]  ? load_image+0x3b0/0x3b0
[  293.125767][ T4720]  sysfs_create_dir_ns+0x252/0x280
[  293.130893][ T4720]  ? sysfs_warn_dup+0xa0/0xa0
[  293.135583][ T4720]  ? kobject_set_name_vargs+0x5d/0x110
[  293.141056][ T4720]  ? do_raw_spin_unlock+0x11d/0x230
[  293.146277][ T4720]  kobject_add_internal+0x6b8/0xc80
[  293.151502][ T4720]  kobject_init_and_add+0x122/0x190
[  293.156695][ T4720]  ? lockdep_softirqs_off+0x420/0x420
[  293.162067][ T4720]  ? kobject_add+0x210/0x210
[  293.166655][ T4720]  ? __init_swait_queue_head+0xa5/0x150
[  293.172198][ T4720]  gfs2_sys_fs_add+0x234/0x480
[  293.176960][ T4720]  ? gfs2_recover_set+0x240/0x240
[  293.181977][ T4720]  ? snprintf+0xd7/0x120
[  293.186214][ T4720]  ? vscnprintf+0x80/0x80
[  293.190542][ T4720]  gfs2_fill_super+0x126f/0x1f80
[  293.195488][ T4720]  ? gfs2_reconfigure+0xcd0/0xcd0
[  293.200515][ T4720]  ? sb_set_blocksize+0xa5/0xe0
[  293.205366][ T4720]  get_tree_bdev+0x3f1/0x610
[  293.209949][ T4720]  ? gfs2_reconfigure+0xcd0/0xcd0
[  293.214972][ T4720]  gfs2_get_tree+0x4d/0x1e0
[  293.219475][ T4720]  vfs_get_tree+0x88/0x270
[  293.223889][ T4720]  do_new_mount+0x24a/0xa40
[  293.228389][ T4720]  __se_sys_mount+0x2d6/0x3c0
[  293.233060][ T4720]  ? __x64_sys_mount+0xc0/0xc0
[  293.237815][ T4720]  ? lockdep_hardirqs_on+0x94/0x140
[  293.243001][ T4720]  ? __x64_sys_mount+0x1c/0xc0
[  293.247756][ T4720]  do_syscall_64+0x4c/0xa0
[  293.252170][ T4720]  ? clear_bhb_loop+0x60/0xb0
[  293.256841][ T4720]  ? clear_bhb_loop+0x60/0xb0
[  293.261514][ T4720]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  293.267401][ T4720] RIP: 0033:0x7fe407f90eea
[  293.271807][ T4720] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  293.291406][ T4720] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  293.299808][ T4720] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  293.307772][ T4720] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  293.315732][ T4720] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  293.323692][ T4720] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  293.331654][ T4720] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  293.339626][ T4720]  </TASK>
[  293.359394][ T4720] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  293.375419][ T4720] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  293.646090][ T4721] loop1: detected capacity change from 0 to 32768
[  293.658875][ T4721] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  293.666633][ T4721] CPU: 0 PID: 4721 Comm: syz.1.249 Not tainted syzkaller #0
[  293.673943][ T4721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  293.684012][ T4721] Call Trace:
[  293.687478][ T4721]  <TASK>
[  293.690421][ T4721]  dump_stack_lvl+0x168/0x22e
[  293.695209][ T4721]  ? show_regs_print_info+0x12/0x12
[  293.700440][ T4721]  ? load_image+0x3b0/0x3b0
[  293.704975][ T4721]  sysfs_create_dir_ns+0x252/0x280
[  293.710105][ T4721]  ? sysfs_warn_dup+0xa0/0xa0
[  293.714805][ T4721]  ? kobject_set_name_vargs+0x5d/0x110
[  293.720287][ T4721]  ? do_raw_spin_unlock+0x11d/0x230
[  293.725592][ T4721]  kobject_add_internal+0x6b8/0xc80
[  293.730801][ T4721]  kobject_init_and_add+0x122/0x190
[  293.735999][ T4721]  ? lockdep_softirqs_off+0x420/0x420
[  293.741377][ T4721]  ? kobject_add+0x210/0x210
[  293.745967][ T4721]  ? __init_swait_queue_head+0xa5/0x150
[  293.751513][ T4721]  gfs2_sys_fs_add+0x234/0x480
[  293.756276][ T4721]  ? gfs2_recover_set+0x240/0x240
[  293.761299][ T4721]  ? snprintf+0xd7/0x120
[  293.765538][ T4721]  ? vscnprintf+0x80/0x80
[  293.769864][ T4721]  gfs2_fill_super+0x126f/0x1f80
[  293.774809][ T4721]  ? gfs2_reconfigure+0xcd0/0xcd0
[  293.779839][ T4721]  ? sb_set_blocksize+0xa5/0xe0
[  293.784687][ T4721]  get_tree_bdev+0x3f1/0x610
[  293.789269][ T4721]  ? gfs2_reconfigure+0xcd0/0xcd0
[  293.794289][ T4721]  gfs2_get_tree+0x4d/0x1e0
[  293.798793][ T4721]  vfs_get_tree+0x88/0x270
[  293.803200][ T4721]  do_new_mount+0x24a/0xa40
[  293.807703][ T4721]  __se_sys_mount+0x2d6/0x3c0
[  293.812375][ T4721]  ? __x64_sys_mount+0xc0/0xc0
[  293.817132][ T4721]  ? lockdep_hardirqs_on+0x94/0x140
[  293.822321][ T4721]  ? __x64_sys_mount+0x1c/0xc0
[  293.827080][ T4721]  do_syscall_64+0x4c/0xa0
[  293.831493][ T4721]  ? clear_bhb_loop+0x60/0xb0
[  293.836161][ T4721]  ? clear_bhb_loop+0x60/0xb0
[  293.840834][ T4721]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  293.846719][ T4721] RIP: 0033:0x7fe407f90eea
[  293.851129][ T4721] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  293.870730][ T4721] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  293.879138][ T4721] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  293.887101][ T4721] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  293.895063][ T4721] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  293.903022][ T4721] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  293.910985][ T4721] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  293.918955][ T4721]  </TASK>
[  293.923213][ T4721] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  293.931076][   T28] INFO: task syz.0.18:4451 blocked for more than 143 seconds.
[  293.936631][ T4721] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  293.958237][   T28]       Not tainted syzkaller #0
[  293.963492][   T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  293.980936][   T28] task:syz.0.18        state:D stack:25168 pid:4451  ppid:4381   flags:0x00004004
[  293.990191][   T28] Call Trace:
[  294.005837][   T28]  <TASK>
[  294.008831][   T28]  __schedule+0x10ec/0x40b0
[  294.020942][   T28]  ? lockdep_hardirqs_on+0x94/0x140
[  294.040937][   T28]  ? _raw_spin_unlock+0x40/0x40
[  294.047767][   T28]  ? enqueue_timer+0x23f/0x5c0
[  294.052615][   T28]  ? __sched_text_start+0x8/0x8
[  294.057496][   T28]  ? __mod_timer+0x91e/0xd00
[  294.082913][   T28]  schedule+0xb9/0x180
[  294.087035][   T28]  schedule_timeout+0x15c/0x280
[  294.092359][   T28]  ? console_conditional_schedule+0x40/0x40
[  294.098268][   T28]  ? update_process_times+0x1b0/0x1b0
[  294.122899][   T28]  ? prepare_to_wait_event+0x430/0x470
[  294.137100][   T28]  gfs2_gl_hash_clear+0x1a2/0x2f0
[  294.145945][   T28]  ? withdraw_dq+0x250/0x250
[  294.150572][   T28]  ? wake_bit_function+0x200/0x200
[  294.164780][   T28]  ? _raw_spin_unlock+0x40/0x40
[  294.170672][   T28]  gfs2_fill_super+0x1699/0x1f80
[  294.184460][   T28]  ? gfs2_reconfigure+0xcd0/0xcd0
[  294.189543][   T28]  ? sb_set_blocksize+0xa5/0xe0
[  294.194988][   T28]  get_tree_bdev+0x3f1/0x610
[  294.207333][   T28]  ? gfs2_reconfigure+0xcd0/0xcd0
[  294.212755][   T28]  gfs2_get_tree+0x4d/0x1e0
[  294.217291][   T28]  vfs_get_tree+0x88/0x270
[  294.223982][   T28]  do_new_mount+0x24a/0xa40
[  294.229226][   T28]  __se_sys_mount+0x2d6/0x3c0
[  294.234221][   T28]  ? __x64_sys_mount+0xc0/0xc0
[  294.239007][   T28]  ? lockdep_hardirqs_on+0x94/0x140
[  294.244553][   T28]  ? __x64_sys_mount+0x1c/0xc0
[  294.249337][   T28]  do_syscall_64+0x4c/0xa0
[  294.254149][   T28]  ? clear_bhb_loop+0x60/0xb0
[  294.258846][   T28]  ? clear_bhb_loop+0x60/0xb0
[  294.263828][   T28]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  294.269737][   T28] RIP: 0033:0x7f8c8b390eea
[  294.274429][   T28] RSP: 002b:00007ffc1d0135e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  294.283062][   T28] RAX: ffffffffffffffda RBX: 00007ffc1d013670 RCX: 00007f8c8b390eea
[  294.291271][   T28] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffc1d013630
[  294.293876][ T4722] loop1: detected capacity change from 0 to 32768
[  294.299239][   T28] RBP: 000020000001f680 R08: 00007ffc1d013670 R09: 0000000000000084
[  294.313996][   T28] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  294.325669][ T4722] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  294.326144][   T28] R13: 00007ffc1d013630 R14: 000000000001f7c6 R15: 0000200000000540
[  294.334662][ T4722] CPU: 1 PID: 4722 Comm: syz.1.250 Not tainted syzkaller #0
[  294.348673][ T4722] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  294.357348][   T28]  </TASK>
[  294.358718][ T4722] Call Trace:
[  294.358727][ T4722]  <TASK>
[  294.367952][ T4722]  dump_stack_lvl+0x168/0x22e
[  294.368937][   T28] 
[  294.368937][   T28] Showing all locks held in the system:
[  294.372636][ T4722]  ? show_regs_print_info+0x12/0x12
[  294.372664][ T4722]  ? load_image+0x3b0/0x3b0
[  294.372693][ T4722]  sysfs_create_dir_ns+0x252/0x280
[  294.383243][   T28] 1 lock held by rcu_tasks_kthre/12:
[  294.385563][ T4722]  ? sysfs_warn_dup+0xa0/0xa0
[  294.390038][   T28]  #0: ffffffff8c92bab0
[  294.395120][ T4722]  ? kobject_set_name_vargs+0x5d/0x110
[  294.395141][ T4722]  ? do_raw_spin_unlock+0x11d/0x230
[  294.395177][ T4722]  kobject_add_internal+0x6b8/0xc80
[  294.425106][ T4722]  kobject_init_and_add+0x122/0x190
[  294.430330][ T4722]  ? lockdep_softirqs_off+0x420/0x420
[  294.431204][   T28]  (
[  294.435700][ T4722]  ? kobject_add+0x210/0x210
[  294.435728][ T4722]  ? __init_swait_queue_head+0xa5/0x150
[  294.435753][ T4722]  gfs2_sys_fs_add+0x234/0x480
[  294.435778][ T4722]  ? gfs2_recover_set+0x240/0x240
[  294.435801][ T4722]  ? snprintf+0xd7/0x120
[  294.435824][ T4722]  ? vscnprintf+0x80/0x80
[  294.435854][ T4722]  gfs2_fill_super+0x126f/0x1f80
[  294.435892][ T4722]  ? gfs2_reconfigure+0xcd0/0xcd0
[  294.435926][ T4722]  ? sb_set_blocksize+0xa5/0xe0
[  294.435950][ T4722]  get_tree_bdev+0x3f1/0x610
[  294.435971][ T4722]  ? gfs2_reconfigure+0xcd0/0xcd0
[  294.435997][ T4722]  gfs2_get_tree+0x4d/0x1e0
[  294.436025][ T4722]  vfs_get_tree+0x88/0x270
[  294.436044][ T4722]  do_new_mount+0x24a/0xa40
[  294.436065][ T4722]  __se_sys_mount+0x2d6/0x3c0
[  294.436086][ T4722]  ? __x64_sys_mount+0xc0/0xc0
[  294.436107][ T4722]  ? lockdep_hardirqs_on+0x94/0x140
[  294.436124][ T4722]  ? __x64_sys_mount+0x1c/0xc0
[  294.436144][ T4722]  do_syscall_64+0x4c/0xa0
[  294.436172][ T4722]  ? clear_bhb_loop+0x60/0xb0
[  294.442521][   T28] rcu_tasks.tasks_gp_mutex
[  294.443226][ T4722]  ? clear_bhb_loop+0x60/0xb0
[  294.448747][   T28] ){+.+.}-{3:3}
[  294.453485][ T4722]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  294.453506][ T4722] RIP: 0033:0x7fe407f90eea
[  294.453522][ T4722] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  294.453537][ T4722] RSP: 002b:00007ffcd5d46068 EFLAGS: 00000246
[  294.471002][   T28] , at: rcu_tasks_one_gp+0x33/0xf00
[  294.471984][ T4722]  ORIG_RAX: 00000000000000a5
[  294.476987][   T28] 1 lock held by rcu_tasks_trace/13:
[  294.481807][ T4722] RAX: ffffffffffffffda RBX: 00007ffcd5d460f0 RCX: 00007fe407f90eea
[  294.481822][ T4722] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcd5d460b0
[  294.481833][ T4722] RBP: 000020000001f680 R08: 00007ffcd5d460f0 R09: 0000000000000084
[  294.481844][ T4722] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  294.481856][ T4722] R13: 00007ffcd5d460b0 R14: 000000000001f7c6 R15: 0000200000000540
[  294.481880][ T4722]  </TASK>
[  294.491557][ T4722] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  294.519346][   T28]  #0: 
[  294.526337][ T4722] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  294.543841][   T28] ffffffff8c92c2d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00
[  294.733877][   T28] 1 lock held by khungtaskd/28:
[  294.738780][   T28]  #0: ffffffff8c92b120 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290
[  294.756183][   T28] 2 locks held by getty/4029:
[  294.761028][   T28]  #0: ffff88802fbdf098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[  294.770819][   T28]  #1: ffffc9000327b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41b/0x1380
[  294.781076][   T28] 1 lock held by syz.0.18/4451:
[  294.785931][   T28]  #0: ffff8880283be0e0 (&type->s_umount_key#52/1){+.+.}-{3:3}, at: alloc_super+0x1fa/0x930
[  294.796180][   T28] 
[  294.798519][   T28] =============================================
[  294.798519][   T28] 
[  294.810964][   T28] NMI backtrace for cpu 1
[  294.815310][   T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted syzkaller #0
[  294.822498][   T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  294.832644][   T28] Call Trace:
[  294.835921][   T28]  <TASK>
[  294.838844][   T28]  dump_stack_lvl+0x168/0x22e
[  294.843523][   T28]  ? irq_work_queue+0xb8/0x140
[  294.848292][   T28]  ? show_regs_print_info+0x12/0x12
[  294.853490][   T28]  ? load_image+0x3b0/0x3b0
[  294.857990][   T28]  ? vprintk_emit+0x571/0x680
[  294.862756][   T28]  ? printk_sprint+0x460/0x460
[  294.867522][   T28]  nmi_cpu_backtrace+0x3f4/0x470
[  294.872466][   T28]  ? nmi_trigger_cpumask_backtrace+0x450/0x450
[  294.878613][   T28]  ? _printk+0xcc/0x110
[  294.882783][   T28]  ? load_image+0x3b0/0x3b0
[  294.887282][   T28]  ? load_image+0x3b0/0x3b0
[  294.891781][   T28]  ? arch_trigger_cpumask_backtrace+0x10/0x10
[  294.897839][   T28]  nmi_trigger_cpumask_backtrace+0x1d4/0x450
[  294.903818][   T28]  watchdog+0xeee/0xf30
[  294.907977][   T28]  ? watchdog+0x1ed/0xf30
[  294.912300][   T28]  kthread+0x29d/0x330
[  294.916368][   T28]  ? hungtask_pm_notify+0x40/0x40
[  294.921388][   T28]  ? kthread_blkcg+0xd0/0xd0
[  294.925974][   T28]  ret_from_fork+0x1f/0x30
[  294.930396][   T28]  </TASK>
[  294.933670][   T28] Sending NMI from CPU 1 to CPUs 0:
[  294.938889][    C0] NMI backtrace for cpu 0
[  294.938900][    C0] CPU: 0 PID: 51 Comm: kworker/u4:3 Not tainted syzkaller #0
[  294.938915][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  294.938938][    C0] Workqueue: bat_events batadv_nc_worker
[  294.938959][    C0] RIP: 0010:__lock_acquire+0x70d/0x7c50
[  294.938981][    C0] Code: 83 f8 31 73 43 48 8d 04 9b 49 8d 5c c5 00 48 89 d8 48 c1 e8 03 42 0f b6 04 00 84 c0 75 45 8b 1b 48 8b 44 24 50 42 0f b6 04 00 <84> c0 75 55 48 8b 44 24 18 33 18 41 ff ce 49 ff cf f7 c3 00 60 00
[  294.938994][    C0] RSP: 0000:ffffc90000bc7780 EFLAGS: 00000046
[  294.939006][    C0] RAX: 0000000000000000 RBX: 00000000000406b5 RCX: ffff88801d6a3b80
[  294.939017][    C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff908c8310
[  294.939027][    C0] RBP: ffffc90000bc79d0 R08: dffffc0000000000 R09: fffffbfff2119063
[  294.939038][    C0] R10: fffffbfff2119063 R11: 1ffffffff2119062 R12: 0000000000000000
[  294.939048][    C0] R13: ffff88801d6a4680 R14: 0000000000000002 R15: 0000000000000000
[  294.939058][    C0] FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
[  294.939072][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  294.939082][    C0] CR2: 00007fe3ffa92000 CR3: 000000002f619000 CR4: 00000000003506f0
[  294.939096][    C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  294.939105][    C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  294.939121][    C0] Call Trace:
[  294.939127][    C0]  <TASK>
[  294.939133][    C0]  ? look_up_lock_class+0x75/0x140
[  294.939156][    C0]  ? __lock_acquire+0x13c0/0x7c50
[  294.939172][    C0]  ? verify_lock_unused+0x140/0x140
[  294.939193][    C0]  ? verify_lock_unused+0x140/0x140
[  294.939210][    C0]  ? mark_lock+0x94/0x320
[  294.939228][    C0]  lock_acquire+0x1b4/0x490
[  294.939244][    C0]  ? batadv_nc_purge_paths+0xe7/0x3b0
[  294.939263][    C0]  ? read_lock_is_recursive+0x10/0x10
[  294.939280][    C0]  ? __local_bh_disable_ip+0xfb/0x190
[  294.939299][    C0]  ? __bpf_trace_tasklet+0x10/0x10
[  294.939317][    C0]  ? __local_bh_enable_ip+0x12a/0x1b0
[  294.939336][    C0]  ? _local_bh_enable+0xa0/0xa0
[  294.939356][    C0]  ? batadv_nc_purge_paths+0xe7/0x3b0
[  294.939372][    C0]  _raw_spin_lock_bh+0x32/0x50
[  294.939386][    C0]  ? batadv_nc_purge_paths+0xe7/0x3b0
[  294.939402][    C0]  ? batadv_nc_to_purge_nc_path_coding+0x120/0x120
[  294.939419][    C0]  batadv_nc_purge_paths+0xe7/0x3b0
[  294.939439][    C0]  batadv_nc_worker+0x365/0x600
[  294.939456][    C0]  ? process_one_work+0x7a1/0x1160
[  294.939471][    C0]  process_one_work+0x898/0x1160
[  294.939490][    C0]  ? worker_detach_from_pool+0x240/0x240
[  294.939506][    C0]  ? _raw_spin_lock_irq+0xab/0xe0
[  294.939519][    C0]  ? _raw_spin_lock_irqsave+0xf0/0xf0
[  294.939533][    C0]  ? kthread_data+0x4b/0xc0
[  294.939552][    C0]  worker_thread+0xaa2/0x1250
[  294.939575][    C0]  kthread+0x29d/0x330
[  294.939591][    C0]  ? worker_clr_flags+0x1a0/0x1a0
[  294.939606][    C0]  ? kthread_blkcg+0xd0/0xd0
[  294.939624][    C0]  ret_from_fork+0x1f/0x30
[  294.939646][    C0]  </TASK>
[  294.939972][   T28] Kernel panic - not syncing: hung_task: blocked tasks
[  295.144616][ T4723] loop1: detected capacity change from 0 to 32768
[  295.245806][   T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted syzkaller #0
[  295.252989][   T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  295.263034][   T28] Call Trace:
[  295.266300][   T28]  <TASK>
[  295.269220][   T28]  dump_stack_lvl+0x168/0x22e
[  295.273895][   T28]  ? memcpy+0x3c/0x60
[  295.277869][   T28]  ? show_regs_print_info+0x12/0x12
[  295.283077][   T28]  ? load_image+0x3b0/0x3b0
[  295.287580][   T28]  panic+0x2c9/0x710
[  295.291474][   T28]  ? schedule_preempt_disabled+0x20/0x20
[  295.297111][   T28]  ? bpf_jit_dump+0xd0/0xd0
[  295.301617][   T28]  ? nmi_trigger_cpumask_backtrace+0x35b/0x450
[  295.307775][   T28]  ? nmi_trigger_cpumask_backtrace+0x360/0x450
[  295.313922][   T28]  watchdog+0xf2d/0xf30
[  295.318072][   T28]  ? watchdog+0x1ed/0xf30
[  295.322393][   T28]  kthread+0x29d/0x330
[  295.326455][   T28]  ? hungtask_pm_notify+0x40/0x40
[  295.331467][   T28]  ? kthread_blkcg+0xd0/0xd0
[  295.336053][   T28]  ret_from_fork+0x1f/0x30
[  295.340467][   T28]  </TASK>
[  295.343809][   T28] Kernel Offset: disabled
[  295.348131][   T28] Rebooting in 86400 seconds..