0
[ 220.842735][ T5893] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 220.850727][ T5893] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 220.858895][ T5893]
[ 220.862127][ T5893] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 220.875851][ T5893] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 220.917300][ T5895] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 220.924800][ T5895] CPU: 1 PID: 5895 Comm: syz.0.339 Not tainted syzkaller #0
[ 220.932186][ T5895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 220.942558][ T5895] Call Trace:
[ 220.946019][ T5895]
[ 220.948953][ T5895] dump_stack_lvl+0x168/0x230
[ 220.953823][ T5895] ? show_regs_print_info+0x20/0x20
[ 220.959126][ T5895] ? load_image+0x3b0/0x3b0
[ 220.963753][ T5895] sysfs_create_dir_ns+0x252/0x280
[ 220.968888][ T5895] ? __lock_acquire+0x7c60/0x7c60
[ 220.973931][ T5895] ? sysfs_warn_dup+0xa0/0xa0
[ 220.979036][ T5895] ? do_raw_spin_unlock+0x11d/0x230
[ 220.984281][ T5895] kobject_add_internal+0x662/0xd00
[ 220.989791][ T5895] kobject_init_and_add+0x122/0x190
[ 220.995273][ T5895] ? lockdep_softirqs_off+0x420/0x420
[ 221.000750][ T5895] ? kobject_add+0x210/0x210
[ 221.005353][ T5895] ? __init_swait_queue_head+0xa5/0x150
[ 221.010900][ T5895] gfs2_sys_fs_add+0x234/0x480
[ 221.015663][ T5895] ? gfs2_recover_set+0x240/0x240
[ 221.020716][ T5895] ? snprintf+0xd7/0x120
[ 221.025129][ T5895] ? __free_pages+0x95/0x1a0
[ 221.029820][ T5895] ? vscnprintf+0x80/0x80
[ 221.034257][ T5895] gfs2_fill_super+0x128d/0x1f50
[ 221.039309][ T5895] ? gfs2_reconfigure+0xcd0/0xcd0
[ 221.044436][ T5895] ? preempt_count_add+0x8d/0x190
[ 221.049572][ T5895] ? sb_set_blocksize+0xa5/0xe0
[ 221.054496][ T5895] get_tree_bdev+0x3f1/0x610
[ 221.059194][ T5895] ? gfs2_reconfigure+0xcd0/0xcd0
[ 221.064241][ T5895] gfs2_get_tree+0x4d/0x1e0
[ 221.068765][ T5895] vfs_get_tree+0x88/0x270
[ 221.073208][ T5895] do_new_mount+0x24a/0xa40
[ 221.078045][ T5895] __se_sys_mount+0x2d6/0x3c0
[ 221.082762][ T5895] ? __x64_sys_mount+0xc0/0xc0
[ 221.087546][ T5895] ? lockdep_hardirqs_on+0x94/0x140
[ 221.092762][ T5895] ? __x64_sys_mount+0x1c/0xc0
[ 221.097556][ T5895] do_syscall_64+0x4c/0xa0
[ 221.101996][ T5895] ? clear_bhb_loop+0x30/0x80
[ 221.106694][ T5895] ? clear_bhb_loop+0x30/0x80
[ 221.111386][ T5895] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 221.117296][ T5895] RIP: 0033:0x7f454a19a38a
[ 221.121716][ T5895] 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
[ 221.141906][ T5895] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 221.150535][ T5895] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 221.158769][ T5895] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 221.166775][ T5895] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 221.174951][ T5895] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 221.183209][ T5895] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 221.191294][ T5895]
[ 221.195244][ T5895] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 221.208654][ T5895] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 221.218509][ T5874] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 221.278298][ T5874] CPU: 1 PID: 5874 Comm: syz.1.332 Not tainted syzkaller #0
[ 221.285715][ T5874] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 221.296149][ T5874] Call Trace:
[ 221.299452][ T5874]
[ 221.302395][ T5874] dump_stack_lvl+0x168/0x230
[ 221.307185][ T5874] ? show_regs_print_info+0x20/0x20
[ 221.312517][ T5874] ? load_image+0x3b0/0x3b0
[ 221.317130][ T5874] sysfs_create_dir_ns+0x252/0x280
[ 221.322722][ T5874] ? __lock_acquire+0x7c60/0x7c60
[ 221.327834][ T5874] ? sysfs_warn_dup+0xa0/0xa0
[ 221.332531][ T5874] ? do_raw_spin_unlock+0x11d/0x230
[ 221.337738][ T5874] kobject_add_internal+0x662/0xd00
[ 221.343124][ T5874] kobject_init_and_add+0x122/0x190
[ 221.348382][ T5874] ? lockdep_softirqs_off+0x420/0x420
[ 221.353871][ T5874] ? kobject_add+0x210/0x210
[ 221.358579][ T5874] ? __init_swait_queue_head+0xa5/0x150
[ 221.364146][ T5874] gfs2_sys_fs_add+0x234/0x480
[ 221.369105][ T5874] ? gfs2_recover_set+0x240/0x240
[ 221.374262][ T5874] ? snprintf+0xd7/0x120
[ 221.378522][ T5874] ? __free_pages+0x95/0x1a0
[ 221.383133][ T5874] ? vscnprintf+0x80/0x80
[ 221.387607][ T5874] gfs2_fill_super+0x128d/0x1f50
[ 221.392624][ T5874] ? gfs2_reconfigure+0xcd0/0xcd0
[ 221.397726][ T5874] ? preempt_count_add+0x8d/0x190
[ 221.402911][ T5874] ? sb_set_blocksize+0xa5/0xe0
[ 221.407787][ T5874] get_tree_bdev+0x3f1/0x610
[ 221.412391][ T5874] ? gfs2_reconfigure+0xcd0/0xcd0
[ 221.417431][ T5874] gfs2_get_tree+0x4d/0x1e0
[ 221.422063][ T5874] vfs_get_tree+0x88/0x270
[ 221.426666][ T5874] do_new_mount+0x24a/0xa40
[ 221.431361][ T5874] __se_sys_mount+0x2d6/0x3c0
[ 221.436172][ T5874] ? __x64_sys_mount+0xc0/0xc0
[ 221.440946][ T5874] ? lockdep_hardirqs_on+0x94/0x140
[ 221.446146][ T5874] ? __x64_sys_mount+0x1c/0xc0
[ 221.450995][ T5874] do_syscall_64+0x4c/0xa0
[ 221.455546][ T5874] ? clear_bhb_loop+0x30/0x80
[ 221.460231][ T5874] ? clear_bhb_loop+0x30/0x80
[ 221.464910][ T5874] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 221.469957][ T5901] loop4: detected capacity change from 0 to 32768
[ 221.470837][ T5874] RIP: 0033:0x7f9ea399238a
[ 221.481641][ T5874] 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
[ 221.501349][ T5874] RSP: 002b:00007f9ea2fffe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 221.509908][ T5874] RAX: ffffffffffffffda RBX: 00007f9ea2fffef0 RCX: 00007f9ea399238a
[ 221.517889][ T5874] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fffeb0
[ 221.526219][ T5874] RBP: 0000200000000400 R08: 00007f9ea2fffef0 R09: 0000000000000000
[ 221.534315][ T5874] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 221.542716][ T5874] R13: 00007f9ea2fffeb0 R14: 00000000000125ed R15: 0000200000000640
[ 221.550870][ T5874]
[ 221.573994][ T5901] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 221.581727][ T5901] CPU: 0 PID: 5901 Comm: syz.4.340 Not tainted syzkaller #0
[ 221.589031][ T5901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 221.599404][ T5901] Call Trace:
[ 221.602699][ T5901]
[ 221.605641][ T5901] dump_stack_lvl+0x168/0x230
[ 221.610340][ T5901] ? show_regs_print_info+0x20/0x20
[ 221.615652][ T5901] ? load_image+0x3b0/0x3b0
[ 221.620286][ T5901] sysfs_create_dir_ns+0x252/0x280
[ 221.625546][ T5901] ? __lock_acquire+0x7c60/0x7c60
[ 221.630681][ T5901] ? sysfs_warn_dup+0xa0/0xa0
[ 221.635510][ T5901] ? do_raw_spin_unlock+0x11d/0x230
[ 221.640741][ T5901] kobject_add_internal+0x662/0xd00
[ 221.645979][ T5901] kobject_init_and_add+0x122/0x190
[ 221.651204][ T5901] ? lockdep_softirqs_off+0x420/0x420
[ 221.656595][ T5901] ? kobject_add+0x210/0x210
[ 221.661288][ T5901] ? __init_swait_queue_head+0xa5/0x150
[ 221.666863][ T5901] gfs2_sys_fs_add+0x234/0x480
[ 221.671746][ T5901] ? gfs2_recover_set+0x240/0x240
[ 221.676899][ T5901] ? snprintf+0xd7/0x120
[ 221.681158][ T5901] ? __free_pages+0x95/0x1a0
[ 221.685765][ T5901] ? vscnprintf+0x80/0x80
[ 221.690125][ T5901] gfs2_fill_super+0x128d/0x1f50
[ 221.695242][ T5901] ? gfs2_reconfigure+0xcd0/0xcd0
[ 221.700376][ T5901] ? preempt_count_add+0x8d/0x190
[ 221.705980][ T5901] ? sb_set_blocksize+0xa5/0xe0
[ 221.711159][ T5901] get_tree_bdev+0x3f1/0x610
[ 221.715945][ T5901] ? gfs2_reconfigure+0xcd0/0xcd0
[ 221.721014][ T5901] gfs2_get_tree+0x4d/0x1e0
[ 221.725617][ T5901] vfs_get_tree+0x88/0x270
[ 221.730076][ T5901] do_new_mount+0x24a/0xa40
[ 221.734722][ T5901] __se_sys_mount+0x2d6/0x3c0
[ 221.739525][ T5901] ? __x64_sys_mount+0xc0/0xc0
[ 221.744306][ T5901] ? lockdep_hardirqs_on+0x94/0x140
[ 221.749518][ T5901] ? __x64_sys_mount+0x1c/0xc0
[ 221.754365][ T5901] do_syscall_64+0x4c/0xa0
[ 221.758978][ T5901] ? clear_bhb_loop+0x30/0x80
[ 221.763766][ T5901] ? clear_bhb_loop+0x30/0x80
[ 221.768580][ T5901] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 221.774711][ T5901] RIP: 0033:0x7f000dda438a
[ 221.779341][ T5901] 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
[ 221.799696][ T5901] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 221.808215][ T5901] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 221.816303][ T5901] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 221.824293][ T5901] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 221.832273][ T5901] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 221.840355][ T5901] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 221.848355][ T5901]
[ 221.851482][ T5901] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 221.864781][ T5901] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 221.885725][ T5874] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 221.963867][ T4298] Bluetooth: hci2: command 0x0406 tx timeout
2025/09/25 23:53:48 executed programs: 339
[ 222.167047][ T5907] loop5: detected capacity change from 0 to 32768
[ 222.182828][ T4325] Bluetooth: hci0: command 0x0406 tx timeout
[ 222.189920][ T4325] Bluetooth: hci1: command 0x0406 tx timeout
[ 222.196049][ T4325] Bluetooth: hci3: command 0x0406 tx timeout
[ 222.202224][ T4325] Bluetooth: hci4: command 0x0406 tx timeout
[ 222.209044][ T5874] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 222.233905][ T5907] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 222.241358][ T5907] CPU: 0 PID: 5907 Comm: syz.5.343 Not tainted syzkaller #0
[ 222.248746][ T5907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 222.258912][ T5907] Call Trace:
[ 222.262199][ T5907]
[ 222.265305][ T5907] dump_stack_lvl+0x168/0x230
[ 222.270142][ T5907] ? show_regs_print_info+0x20/0x20
[ 222.275531][ T5907] ? load_image+0x3b0/0x3b0
[ 222.280092][ T5907] sysfs_create_dir_ns+0x252/0x280
[ 222.285221][ T5907] ? __lock_acquire+0x7c60/0x7c60
[ 222.290260][ T5907] ? sysfs_warn_dup+0xa0/0xa0
[ 222.295227][ T5907] ? do_raw_spin_unlock+0x11d/0x230
[ 222.300445][ T5907] kobject_add_internal+0x662/0xd00
[ 222.305774][ T5907] kobject_init_and_add+0x122/0x190
[ 222.310991][ T5907] ? lockdep_softirqs_off+0x420/0x420
[ 222.316489][ T5907] ? kobject_add+0x210/0x210
[ 222.321104][ T5907] ? __init_swait_queue_head+0xa5/0x150
[ 222.326768][ T5907] gfs2_sys_fs_add+0x234/0x480
[ 222.331545][ T5907] ? gfs2_recover_set+0x240/0x240
[ 222.336681][ T5907] ? snprintf+0xd7/0x120
[ 222.340943][ T5907] ? __free_pages+0x95/0x1a0
[ 222.345554][ T5907] ? vscnprintf+0x80/0x80
[ 222.349906][ T5907] gfs2_fill_super+0x128d/0x1f50
[ 222.354882][ T5907] ? gfs2_reconfigure+0xcd0/0xcd0
[ 222.360054][ T5907] ? preempt_count_add+0x8d/0x190
[ 222.365739][ T5907] ? sb_set_blocksize+0xa5/0xe0
[ 222.370746][ T5907] get_tree_bdev+0x3f1/0x610
[ 222.375386][ T5907] ? gfs2_reconfigure+0xcd0/0xcd0
[ 222.380433][ T5907] gfs2_get_tree+0x4d/0x1e0
[ 222.385490][ T5907] vfs_get_tree+0x88/0x270
[ 222.390017][ T5907] do_new_mount+0x24a/0xa40
[ 222.394546][ T5907] __se_sys_mount+0x2d6/0x3c0
[ 222.399863][ T5907] ? __x64_sys_mount+0xc0/0xc0
[ 222.404665][ T5907] ? lockdep_hardirqs_on+0x94/0x140
[ 222.409958][ T5907] ? __x64_sys_mount+0x1c/0xc0
[ 222.414742][ T5907] do_syscall_64+0x4c/0xa0
[ 222.419237][ T5907] ? clear_bhb_loop+0x30/0x80
[ 222.423907][ T5907] ? clear_bhb_loop+0x30/0x80
[ 222.428579][ T5907] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 222.434773][ T5907] RIP: 0033:0x7eff7626138a
[ 222.439198][ T5907] 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
[ 222.459251][ T5907] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 222.467855][ T5907] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 222.475929][ T5907] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 222.483921][ T5907] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 222.492011][ T5907] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 222.499992][ T5907] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 222.507989][ T5907]
[ 222.512539][ T5907] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 222.525742][ T5907] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 222.565986][ T5912] loop4: detected capacity change from 0 to 32768
[ 222.924306][ T5912] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 222.931995][ T5912] CPU: 1 PID: 5912 Comm: syz.4.346 Not tainted syzkaller #0
[ 222.939472][ T5912] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 222.949536][ T5912] Call Trace:
[ 222.952830][ T5912]
[ 222.955773][ T5912] dump_stack_lvl+0x168/0x230
[ 222.960473][ T5912] ? show_regs_print_info+0x20/0x20
[ 222.965688][ T5912] ? load_image+0x3b0/0x3b0
[ 222.970399][ T5912] sysfs_create_dir_ns+0x252/0x280
[ 222.975630][ T5912] ? __lock_acquire+0x7c60/0x7c60
[ 222.980883][ T5912] ? sysfs_warn_dup+0xa0/0xa0
[ 222.985755][ T5912] ? do_raw_spin_unlock+0x11d/0x230
[ 222.990988][ T5912] kobject_add_internal+0x662/0xd00
[ 222.996375][ T5912] kobject_init_and_add+0x122/0x190
[ 223.001714][ T5912] ? lockdep_softirqs_off+0x420/0x420
[ 223.007094][ T5912] ? kobject_add+0x210/0x210
[ 223.011689][ T5912] ? __init_swait_queue_head+0xa5/0x150
[ 223.017238][ T5912] gfs2_sys_fs_add+0x234/0x480
[ 223.022109][ T5912] ? gfs2_recover_set+0x240/0x240
[ 223.027241][ T5912] ? snprintf+0xd7/0x120
[ 223.031500][ T5912] ? __free_pages+0x95/0x1a0
[ 223.036122][ T5912] ? vscnprintf+0x80/0x80
[ 223.040516][ T5912] gfs2_fill_super+0x128d/0x1f50
[ 223.045604][ T5912] ? gfs2_reconfigure+0xcd0/0xcd0
[ 223.050887][ T5912] ? preempt_count_add+0x8d/0x190
[ 223.056449][ T5912] ? sb_set_blocksize+0xa5/0xe0
[ 223.061540][ T5912] get_tree_bdev+0x3f1/0x610
[ 223.066405][ T5912] ? gfs2_reconfigure+0xcd0/0xcd0
[ 223.071646][ T5912] gfs2_get_tree+0x4d/0x1e0
[ 223.076409][ T5912] vfs_get_tree+0x88/0x270
[ 223.081062][ T5912] do_new_mount+0x24a/0xa40
[ 223.085852][ T5912] __se_sys_mount+0x2d6/0x3c0
[ 223.090550][ T5912] ? __x64_sys_mount+0xc0/0xc0
[ 223.095455][ T5912] ? lockdep_hardirqs_on+0x94/0x140
[ 223.100763][ T5912] ? __x64_sys_mount+0x1c/0xc0
[ 223.105558][ T5912] do_syscall_64+0x4c/0xa0
[ 223.110258][ T5912] ? clear_bhb_loop+0x30/0x80
[ 223.114952][ T5912] ? clear_bhb_loop+0x30/0x80
[ 223.119657][ T5912] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 223.125572][ T5912] RIP: 0033:0x7f000dda438a
[ 223.129994][ T5912] 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
[ 223.150137][ T5912] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 223.158746][ T5912] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 223.167078][ T5912] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 223.175163][ T5912] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 223.183138][ T5912] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 223.191115][ T5912] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 223.199109][ T5912]
[ 223.204008][ T5912] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 223.217181][ T5912] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 223.550311][ T5918] loop5: detected capacity change from 0 to 32768
[ 223.905534][ T5922] loop4: detected capacity change from 0 to 32768
[ 223.943114][ T5922] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 223.943951][ T5918] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 223.950845][ T5922] CPU: 1 PID: 5922 Comm: syz.4.352 Not tainted syzkaller #0
[ 223.966075][ T5922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 223.976476][ T5922] Call Trace:
[ 223.979751][ T5922]
[ 223.982677][ T5922] dump_stack_lvl+0x168/0x230
[ 223.987556][ T5922] ? show_regs_print_info+0x20/0x20
[ 223.992760][ T5922] ? load_image+0x3b0/0x3b0
[ 223.997262][ T5922] sysfs_create_dir_ns+0x252/0x280
[ 224.002648][ T5922] ? __lock_acquire+0x7c60/0x7c60
[ 224.007874][ T5922] ? sysfs_warn_dup+0xa0/0xa0
[ 224.012632][ T5922] ? do_raw_spin_unlock+0x11d/0x230
[ 224.017824][ T5922] kobject_add_internal+0x662/0xd00
[ 224.023107][ T5922] kobject_init_and_add+0x122/0x190
[ 224.028409][ T5922] ? lockdep_softirqs_off+0x420/0x420
[ 224.033788][ T5922] ? kobject_add+0x210/0x210
[ 224.038376][ T5922] ? __init_swait_queue_head+0xa5/0x150
[ 224.043925][ T5922] gfs2_sys_fs_add+0x234/0x480
[ 224.048716][ T5922] ? gfs2_recover_set+0x240/0x240
[ 224.053733][ T5922] ? snprintf+0xd7/0x120
[ 224.057970][ T5922] ? __free_pages+0x95/0x1a0
[ 224.062646][ T5922] ? vscnprintf+0x80/0x80
[ 224.066977][ T5922] gfs2_fill_super+0x128d/0x1f50
[ 224.072022][ T5922] ? gfs2_reconfigure+0xcd0/0xcd0
[ 224.077040][ T5922] ? preempt_count_add+0x8d/0x190
[ 224.082322][ T5922] ? sb_set_blocksize+0xa5/0xe0
[ 224.087174][ T5922] get_tree_bdev+0x3f1/0x610
[ 224.091772][ T5922] ? gfs2_reconfigure+0xcd0/0xcd0
[ 224.096788][ T5922] gfs2_get_tree+0x4d/0x1e0
[ 224.101371][ T5922] vfs_get_tree+0x88/0x270
[ 224.105884][ T5922] do_new_mount+0x24a/0xa40
[ 224.110610][ T5922] __se_sys_mount+0x2d6/0x3c0
[ 224.115399][ T5922] ? __x64_sys_mount+0xc0/0xc0
[ 224.120330][ T5922] ? lockdep_hardirqs_on+0x94/0x140
[ 224.125613][ T5922] ? __x64_sys_mount+0x1c/0xc0
[ 224.130458][ T5922] do_syscall_64+0x4c/0xa0
[ 224.134865][ T5922] ? clear_bhb_loop+0x30/0x80
[ 224.139571][ T5922] ? clear_bhb_loop+0x30/0x80
[ 224.144249][ T5922] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 224.150234][ T5922] RIP: 0033:0x7f000dda438a
[ 224.154641][ T5922] 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
[ 224.174424][ T5922] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 224.183126][ T5922] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 224.191084][ T5922] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 224.199219][ T5922] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 224.207264][ T5922] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 224.215227][ T5922] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 224.223370][ T5922]
[ 224.226390][ T5918] CPU: 0 PID: 5918 Comm: syz.5.348 Not tainted syzkaller #0
[ 224.227218][ T5922] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 224.234135][ T5918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 224.234150][ T5918] Call Trace:
[ 224.234156][ T5918]
[ 224.234163][ T5918] dump_stack_lvl+0x168/0x230
[ 224.234190][ T5918] ? show_regs_print_info+0x20/0x20
[ 224.248228][ T5922] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 224.257792][ T5918] ? load_image+0x3b0/0x3b0
[ 224.257827][ T5918] sysfs_create_dir_ns+0x252/0x280
[ 224.257847][ T5918] ? __lock_acquire+0x7c60/0x7c60
[ 224.295510][ T5918] ? sysfs_warn_dup+0xa0/0xa0
[ 224.300296][ T5918] ? do_raw_spin_unlock+0x11d/0x230
[ 224.305504][ T5918] kobject_add_internal+0x662/0xd00
[ 224.310713][ T5918] kobject_init_and_add+0x122/0x190
[ 224.315915][ T5918] ? lockdep_softirqs_off+0x420/0x420
[ 224.321312][ T5918] ? kobject_add+0x210/0x210
[ 224.325921][ T5918] ? __init_swait_queue_head+0xa5/0x150
[ 224.331501][ T5918] gfs2_sys_fs_add+0x234/0x480
[ 224.336288][ T5918] ? gfs2_recover_set+0x240/0x240
[ 224.341426][ T5918] ? snprintf+0xd7/0x120
[ 224.345771][ T5918] ? __free_pages+0x95/0x1a0
[ 224.350382][ T5918] ? vscnprintf+0x80/0x80
[ 224.354969][ T5918] gfs2_fill_super+0x128d/0x1f50
[ 224.359937][ T5918] ? gfs2_reconfigure+0xcd0/0xcd0
[ 224.365066][ T5918] ? preempt_count_add+0x8d/0x190
[ 224.370326][ T5918] ? sb_set_blocksize+0xa5/0xe0
[ 224.375299][ T5918] get_tree_bdev+0x3f1/0x610
[ 224.379907][ T5918] ? gfs2_reconfigure+0xcd0/0xcd0
[ 224.385218][ T5918] gfs2_get_tree+0x4d/0x1e0
[ 224.389852][ T5918] vfs_get_tree+0x88/0x270
[ 224.394321][ T5918] do_new_mount+0x24a/0xa40
[ 224.398845][ T5918] __se_sys_mount+0x2d6/0x3c0
[ 224.403600][ T5918] ? __x64_sys_mount+0xc0/0xc0
[ 224.408395][ T5918] ? lockdep_hardirqs_on+0x94/0x140
[ 224.413699][ T5918] ? __x64_sys_mount+0x1c/0xc0
[ 224.418487][ T5918] do_syscall_64+0x4c/0xa0
[ 224.422919][ T5918] ? clear_bhb_loop+0x30/0x80
[ 224.427613][ T5918] ? clear_bhb_loop+0x30/0x80
[ 224.432390][ T5918] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 224.438584][ T5918] RIP: 0033:0x7eff7626138a
[ 224.443026][ T5918] 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
[ 224.463181][ T5918] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 224.471610][ T5918] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 224.479784][ T5918] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 224.487770][ T5918] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 224.495757][ T5918] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 224.503740][ T5918] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 224.511738][ T5918]
[ 224.515788][ T5918] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 224.529109][ T5918] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 224.752344][ T5925] loop3: detected capacity change from 0 to 32768
[ 224.816781][ T5926] loop1: detected capacity change from 0 to 32768
[ 224.920022][ T5910] loop0: detected capacity change from 0 to 32768
[ 225.028109][ T5925] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 225.036634][ T5925] CPU: 1 PID: 5925 Comm: syz.3.353 Not tainted syzkaller #0
[ 225.044117][ T5925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 225.054307][ T5925] Call Trace:
[ 225.057595][ T5925]
[ 225.060618][ T5925] dump_stack_lvl+0x168/0x230
[ 225.065499][ T5925] ? show_regs_print_info+0x20/0x20
[ 225.070714][ T5925] ? load_image+0x3b0/0x3b0
[ 225.075253][ T5925] sysfs_create_dir_ns+0x252/0x280
[ 225.080482][ T5925] ? __lock_acquire+0x7c60/0x7c60
[ 225.085522][ T5925] ? sysfs_warn_dup+0xa0/0xa0
[ 225.090263][ T5925] ? do_raw_spin_unlock+0x11d/0x230
[ 225.095560][ T5925] kobject_add_internal+0x662/0xd00
[ 225.100786][ T5925] kobject_init_and_add+0x122/0x190
[ 225.105993][ T5925] ? lockdep_softirqs_off+0x420/0x420
[ 225.111472][ T5925] ? kobject_add+0x210/0x210
[ 225.116094][ T5925] ? __init_swait_queue_head+0xa5/0x150
[ 225.119329][ T5928] loop5: detected capacity change from 0 to 32768
[ 225.121655][ T5925] gfs2_sys_fs_add+0x234/0x480
[ 225.121681][ T5925] ? gfs2_recover_set+0x240/0x240
[ 225.138125][ T5925] ? snprintf+0xd7/0x120
[ 225.142387][ T5925] ? __free_pages+0x95/0x1a0
[ 225.147099][ T5925] ? vscnprintf+0x80/0x80
[ 225.151549][ T5925] gfs2_fill_super+0x128d/0x1f50
[ 225.156515][ T5925] ? gfs2_reconfigure+0xcd0/0xcd0
[ 225.161650][ T5925] ? preempt_count_add+0x8d/0x190
[ 225.162657][ T5926] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 225.166774][ T5925] ? sb_set_blocksize+0xa5/0xe0
[ 225.166801][ T5925] get_tree_bdev+0x3f1/0x610
[ 225.184066][ T5925] ? gfs2_reconfigure+0xcd0/0xcd0
[ 225.189112][ T5925] gfs2_get_tree+0x4d/0x1e0
[ 225.193628][ T5925] vfs_get_tree+0x88/0x270
[ 225.198046][ T5925] do_new_mount+0x24a/0xa40
[ 225.202552][ T5925] __se_sys_mount+0x2d6/0x3c0
[ 225.207581][ T5925] ? __x64_sys_mount+0xc0/0xc0
[ 225.212525][ T5925] ? lockdep_hardirqs_on+0x94/0x140
[ 225.217803][ T5925] ? __x64_sys_mount+0x1c/0xc0
[ 225.222571][ T5925] do_syscall_64+0x4c/0xa0
[ 225.226980][ T5925] ? clear_bhb_loop+0x30/0x80
[ 225.231736][ T5925] ? clear_bhb_loop+0x30/0x80
[ 225.236597][ T5925] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 225.242507][ T5925] RIP: 0033:0x7f17c050238a
[ 225.246925][ T5925] 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
[ 225.266614][ T5925] RSP: 002b:00007f17bfb6fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 225.275247][ T5925] RAX: ffffffffffffffda RBX: 00007f17bfb6fef0 RCX: 00007f17c050238a
[ 225.283353][ T5925] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f17bfb6feb0
[ 225.291403][ T5925] RBP: 0000200000000400 R08: 00007f17bfb6fef0 R09: 0000000000000000
[ 225.299550][ T5925] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 225.308070][ T5925] R13: 00007f17bfb6feb0 R14: 00000000000125ed R15: 0000200000000640
[ 225.316310][ T5925]
[ 225.319339][ T5926] CPU: 0 PID: 5926 Comm: syz.1.351 Not tainted syzkaller #0
[ 225.319975][ T5925] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 225.326636][ T5926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 225.326648][ T5926] Call Trace:
[ 225.326655][ T5926]
[ 225.326662][ T5926] dump_stack_lvl+0x168/0x230
[ 225.326689][ T5926] ? show_regs_print_info+0x20/0x20
[ 225.326707][ T5926] ? load_image+0x3b0/0x3b0
[ 225.326736][ T5926] sysfs_create_dir_ns+0x252/0x280
[ 225.326755][ T5926] ? __lock_acquire+0x7c60/0x7c60
[ 225.326773][ T5926] ? sysfs_warn_dup+0xa0/0xa0
[ 225.326792][ T5926] ? do_raw_spin_unlock+0x11d/0x230
[ 225.326812][ T5926] kobject_add_internal+0x662/0xd00
[ 225.326836][ T5926] kobject_init_and_add+0x122/0x190
[ 225.326852][ T5926] ? lockdep_softirqs_off+0x420/0x420
[ 225.326873][ T5926] ? kobject_add+0x210/0x210
[ 225.340017][ T5925] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 225.350104][ T5926] ? __init_swait_queue_head+0xa5/0x150
[ 225.350136][ T5926] gfs2_sys_fs_add+0x234/0x480
[ 225.429518][ T5926] ? gfs2_recover_set+0x240/0x240
[ 225.434563][ T5926] ? snprintf+0xd7/0x120
[ 225.438853][ T5926] ? __free_pages+0x95/0x1a0
[ 225.443807][ T5926] ? vscnprintf+0x80/0x80
[ 225.448175][ T5926] gfs2_fill_super+0x128d/0x1f50
[ 225.453234][ T5926] ? gfs2_reconfigure+0xcd0/0xcd0
[ 225.458370][ T5926] ? preempt_count_add+0x8d/0x190
[ 225.463432][ T5926] ? sb_set_blocksize+0xa5/0xe0
[ 225.468307][ T5926] get_tree_bdev+0x3f1/0x610
[ 225.472926][ T5926] ? gfs2_reconfigure+0xcd0/0xcd0
[ 225.478055][ T5926] gfs2_get_tree+0x4d/0x1e0
[ 225.482577][ T5926] vfs_get_tree+0x88/0x270
[ 225.487007][ T5926] do_new_mount+0x24a/0xa40
[ 225.491524][ T5926] __se_sys_mount+0x2d6/0x3c0
[ 225.496206][ T5926] ? __x64_sys_mount+0xc0/0xc0
[ 225.501197][ T5926] ? lockdep_hardirqs_on+0x94/0x140
[ 225.506574][ T5926] ? __x64_sys_mount+0x1c/0xc0
[ 225.511772][ T5926] do_syscall_64+0x4c/0xa0
[ 225.516282][ T5926] ? clear_bhb_loop+0x30/0x80
[ 225.521048][ T5926] ? clear_bhb_loop+0x30/0x80
[ 225.525736][ T5926] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 225.531910][ T5926] RIP: 0033:0x7f9ea399238a
[ 225.536514][ T5926] 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
[ 225.556235][ T5926] RSP: 002b:00007f9ea2fffe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 225.564755][ T5926] RAX: ffffffffffffffda RBX: 00007f9ea2fffef0 RCX: 00007f9ea399238a
[ 225.572832][ T5926] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fffeb0
[ 225.580815][ T5926] RBP: 0000200000000400 R08: 00007f9ea2fffef0 R09: 0000000000000000
[ 225.588796][ T5926] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 225.596859][ T5926] R13: 00007f9ea2fffeb0 R14: 00000000000125ed R15: 0000200000000640
[ 225.604945][ T5926]
[ 225.609020][ T5926] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 225.622533][ T5926] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 225.653090][ T5930] loop4: detected capacity change from 0 to 32768
[ 225.714338][ T5928] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 225.721985][ T5928] CPU: 0 PID: 5928 Comm: syz.5.354 Not tainted syzkaller #0
[ 225.729699][ T5928] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 225.739939][ T5928] Call Trace:
[ 225.743264][ T5928]
[ 225.746292][ T5928] dump_stack_lvl+0x168/0x230
[ 225.750999][ T5928] ? show_regs_print_info+0x20/0x20
[ 225.756305][ T5928] ? load_image+0x3b0/0x3b0
[ 225.760948][ T5928] sysfs_create_dir_ns+0x252/0x280
[ 225.766262][ T5928] ? __lock_acquire+0x7c60/0x7c60
[ 225.771317][ T5928] ? sysfs_warn_dup+0xa0/0xa0
[ 225.776025][ T5928] ? do_raw_spin_unlock+0x11d/0x230
[ 225.780535][ T5930] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 225.781346][ T5928] kobject_add_internal+0x662/0xd00
[ 225.794139][ T5928] kobject_init_and_add+0x122/0x190
[ 225.799378][ T5928] ? lockdep_softirqs_off+0x420/0x420
[ 225.804750][ T5928] ? kobject_add+0x210/0x210
[ 225.809425][ T5928] ? __init_swait_queue_head+0xa5/0x150
[ 225.815053][ T5928] gfs2_sys_fs_add+0x234/0x480
[ 225.819837][ T5928] ? gfs2_recover_set+0x240/0x240
[ 225.824857][ T5928] ? snprintf+0xd7/0x120
[ 225.829097][ T5928] ? __free_pages+0x95/0x1a0
[ 225.833794][ T5928] ? vscnprintf+0x80/0x80
[ 225.838134][ T5928] gfs2_fill_super+0x128d/0x1f50
[ 225.843157][ T5928] ? gfs2_reconfigure+0xcd0/0xcd0
[ 225.848171][ T5928] ? preempt_count_add+0x8d/0x190
[ 225.853190][ T5928] ? sb_set_blocksize+0xa5/0xe0
[ 225.858050][ T5928] get_tree_bdev+0x3f1/0x610
[ 225.862647][ T5928] ? gfs2_reconfigure+0xcd0/0xcd0
[ 225.867664][ T5928] gfs2_get_tree+0x4d/0x1e0
[ 225.872248][ T5928] vfs_get_tree+0x88/0x270
[ 225.876748][ T5928] do_new_mount+0x24a/0xa40
[ 225.881246][ T5928] __se_sys_mount+0x2d6/0x3c0
[ 225.885918][ T5928] ? __x64_sys_mount+0xc0/0xc0
[ 225.890858][ T5928] ? lockdep_hardirqs_on+0x94/0x140
[ 225.896042][ T5928] ? __x64_sys_mount+0x1c/0xc0
[ 225.900974][ T5928] do_syscall_64+0x4c/0xa0
[ 225.905382][ T5928] ? clear_bhb_loop+0x30/0x80
[ 225.910073][ T5928] ? clear_bhb_loop+0x30/0x80
[ 225.914748][ T5928] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 225.920826][ T5928] RIP: 0033:0x7eff7626138a
[ 225.925432][ T5928] 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
[ 225.945539][ T5928] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 225.954048][ T5928] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 225.962468][ T5928] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 225.970533][ T5928] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 225.978595][ T5928] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 225.986831][ T5928] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 225.994904][ T5928]
[ 225.997944][ T5930] CPU: 1 PID: 5930 Comm: syz.4.355 Not tainted syzkaller #0
[ 225.998080][ T5928] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 226.005258][ T5930] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 226.005271][ T5930] Call Trace:
[ 226.005278][ T5930]
[ 226.005285][ T5930] dump_stack_lvl+0x168/0x230
[ 226.018690][ T5928] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 226.028704][ T5930] ? show_regs_print_info+0x20/0x20
[ 226.051418][ T5930] ? load_image+0x3b0/0x3b0
[ 226.056039][ T5930] sysfs_create_dir_ns+0x252/0x280
[ 226.061765][ T5930] ? __lock_acquire+0x7c60/0x7c60
[ 226.066801][ T5930] ? sysfs_warn_dup+0xa0/0xa0
[ 226.071491][ T5930] ? do_raw_spin_unlock+0x11d/0x230
[ 226.076704][ T5930] kobject_add_internal+0x662/0xd00
[ 226.081928][ T5930] kobject_init_and_add+0x122/0x190
[ 226.087314][ T5930] ? lockdep_softirqs_off+0x420/0x420
[ 226.092704][ T5930] ? kobject_add+0x210/0x210
[ 226.097398][ T5930] ? __init_swait_queue_head+0xa5/0x150
[ 226.103464][ T5930] gfs2_sys_fs_add+0x234/0x480
[ 226.108257][ T5930] ? gfs2_recover_set+0x240/0x240
[ 226.113297][ T5930] ? snprintf+0xd7/0x120
[ 226.117556][ T5930] ? __free_pages+0x95/0x1a0
[ 226.122332][ T5930] ? vscnprintf+0x80/0x80
[ 226.126783][ T5930] gfs2_fill_super+0x128d/0x1f50
[ 226.131773][ T5930] ? gfs2_reconfigure+0xcd0/0xcd0
[ 226.136809][ T5930] ? preempt_count_add+0x8d/0x190
[ 226.142034][ T5930] ? sb_set_blocksize+0xa5/0xe0
[ 226.146903][ T5930] get_tree_bdev+0x3f1/0x610
[ 226.151504][ T5930] ? gfs2_reconfigure+0xcd0/0xcd0
[ 226.156771][ T5930] gfs2_get_tree+0x4d/0x1e0
[ 226.161290][ T5930] vfs_get_tree+0x88/0x270
[ 226.165719][ T5930] do_new_mount+0x24a/0xa40
[ 226.170238][ T5930] __se_sys_mount+0x2d6/0x3c0
[ 226.174978][ T5930] ? __x64_sys_mount+0xc0/0xc0
[ 226.179840][ T5930] ? lockdep_hardirqs_on+0x94/0x140
[ 226.185373][ T5930] ? __x64_sys_mount+0x1c/0xc0
[ 226.190164][ T5930] do_syscall_64+0x4c/0xa0
[ 226.194685][ T5930] ? clear_bhb_loop+0x30/0x80
[ 226.199397][ T5930] ? clear_bhb_loop+0x30/0x80
[ 226.204295][ T5930] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 226.210730][ T5930] RIP: 0033:0x7f000dda438a
[ 226.215161][ T5930] 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
[ 226.235300][ T5930] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 226.243915][ T5930] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 226.251992][ T5930] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 226.260617][ T5930] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 226.268942][ T5930] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 226.277023][ T5930] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 226.285189][ T5930]
[ 226.289190][ T5930] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 226.302569][ T5930] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 226.705921][ T5936] loop3: detected capacity change from 0 to 32768
[ 227.023475][ T5940] loop0: detected capacity change from 0 to 32768
[ 227.067685][ T5940] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 227.075268][ T5940] CPU: 1 PID: 5940 Comm: syz.0.356 Not tainted syzkaller #0
[ 227.082655][ T5940] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 227.092806][ T5940] Call Trace:
[ 227.096230][ T5940]
[ 227.099164][ T5940] dump_stack_lvl+0x168/0x230
[ 227.100875][ T5938] loop1: detected capacity change from 0 to 32768
[ 227.103937][ T5940] ? show_regs_print_info+0x20/0x20
[ 227.103963][ T5940] ? load_image+0x3b0/0x3b0
[ 227.120332][ T5940] sysfs_create_dir_ns+0x252/0x280
[ 227.125459][ T5940] ? __lock_acquire+0x7c60/0x7c60
[ 227.130501][ T5940] ? sysfs_warn_dup+0xa0/0xa0
[ 227.135292][ T5940] ? do_raw_spin_unlock+0x11d/0x230
[ 227.140512][ T5940] kobject_add_internal+0x662/0xd00
[ 227.145823][ T5940] kobject_init_and_add+0x122/0x190
[ 227.151379][ T5940] ? lockdep_softirqs_off+0x420/0x420
[ 227.156780][ T5940] ? kobject_add+0x210/0x210
[ 227.161393][ T5940] ? __init_swait_queue_head+0xa5/0x150
[ 227.167107][ T5940] gfs2_sys_fs_add+0x234/0x480
[ 227.172092][ T5940] ? gfs2_recover_set+0x240/0x240
[ 227.177243][ T5940] ? snprintf+0xd7/0x120
[ 227.181764][ T5940] ? __free_pages+0x95/0x1a0
[ 227.186395][ T5940] ? vscnprintf+0x80/0x80
[ 227.190761][ T5940] gfs2_fill_super+0x128d/0x1f50
[ 227.195730][ T5940] ? gfs2_reconfigure+0xcd0/0xcd0
[ 227.200793][ T5940] ? preempt_count_add+0x8d/0x190
[ 227.205940][ T5940] ? sb_set_blocksize+0xa5/0xe0
[ 227.210903][ T5940] get_tree_bdev+0x3f1/0x610
[ 227.215546][ T5940] ? gfs2_reconfigure+0xcd0/0xcd0
[ 227.220814][ T5940] gfs2_get_tree+0x4d/0x1e0
[ 227.225507][ T5940] vfs_get_tree+0x88/0x270
[ 227.230069][ T5940] do_new_mount+0x24a/0xa40
[ 227.234751][ T5940] __se_sys_mount+0x2d6/0x3c0
[ 227.239625][ T5940] ? __x64_sys_mount+0xc0/0xc0
[ 227.244393][ T5940] ? lockdep_hardirqs_on+0x94/0x140
[ 227.249597][ T5940] ? __x64_sys_mount+0x1c/0xc0
[ 227.254360][ T5940] do_syscall_64+0x4c/0xa0
[ 227.259093][ T5940] ? clear_bhb_loop+0x30/0x80
[ 227.263870][ T5940] ? clear_bhb_loop+0x30/0x80
[ 227.268648][ T5940] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 227.274551][ T5940] RIP: 0033:0x7f454a19a38a
[ 227.279252][ T5940] 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
[ 227.299135][ T5940] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 227.308183][ T5940] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 227.316403][ T5940] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 227.324575][ T5940] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 227.332748][ T5940] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 227.340908][ T5940] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 227.348997][ T5940]
[ 227.353063][ T5940] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 227.366519][ T5940] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 227.375824][ T5936] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 227.383237][ T5936] CPU: 1 PID: 5936 Comm: syz.3.358 Not tainted syzkaller #0
[ 227.390704][ T5936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 227.400862][ T5936] Call Trace:
[ 227.404148][ T5936]
[ 227.407168][ T5936] dump_stack_lvl+0x168/0x230
[ 227.412040][ T5936] ? show_regs_print_info+0x20/0x20
[ 227.417440][ T5936] ? load_image+0x3b0/0x3b0
[ 227.421963][ T5936] sysfs_create_dir_ns+0x252/0x280
[ 227.427149][ T5936] ? __lock_acquire+0x7c60/0x7c60
[ 227.432580][ T5936] ? sysfs_warn_dup+0xa0/0xa0
[ 227.437276][ T5936] ? do_raw_spin_unlock+0x11d/0x230
[ 227.442483][ T5936] kobject_add_internal+0x662/0xd00
[ 227.447698][ T5936] kobject_init_and_add+0x122/0x190
[ 227.452907][ T5936] ? lockdep_softirqs_off+0x420/0x420
[ 227.458383][ T5936] ? kobject_add+0x210/0x210
[ 227.463085][ T5936] ? __init_swait_queue_head+0xa5/0x150
[ 227.468818][ T5936] gfs2_sys_fs_add+0x234/0x480
[ 227.474313][ T5936] ? gfs2_recover_set+0x240/0x240
[ 227.479505][ T5936] ? snprintf+0xd7/0x120
[ 227.483764][ T5936] ? __free_pages+0x95/0x1a0
[ 227.488470][ T5936] ? vscnprintf+0x80/0x80
[ 227.492940][ T5936] gfs2_fill_super+0x128d/0x1f50
[ 227.497992][ T5936] ? gfs2_reconfigure+0xcd0/0xcd0
[ 227.503228][ T5936] ? preempt_count_add+0x8d/0x190
[ 227.508368][ T5936] ? sb_set_blocksize+0xa5/0xe0
[ 227.513336][ T5936] get_tree_bdev+0x3f1/0x610
2025/09/25 23:53:53 executed programs: 355
[ 227.518035][ T5936] ? gfs2_reconfigure+0xcd0/0xcd0
[ 227.523256][ T5936] gfs2_get_tree+0x4d/0x1e0
[ 227.527880][ T5936] vfs_get_tree+0x88/0x270
[ 227.532412][ T5936] do_new_mount+0x24a/0xa40
[ 227.537087][ T5936] __se_sys_mount+0x2d6/0x3c0
[ 227.541986][ T5936] ? __x64_sys_mount+0xc0/0xc0
[ 227.546756][ T5936] ? lockdep_hardirqs_on+0x94/0x140
[ 227.552045][ T5936] ? __x64_sys_mount+0x1c/0xc0
[ 227.556880][ T5936] do_syscall_64+0x4c/0xa0
[ 227.561284][ T5936] ? clear_bhb_loop+0x30/0x80
[ 227.565964][ T5936] ? clear_bhb_loop+0x30/0x80
[ 227.570629][ T5936] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 227.576682][ T5936] RIP: 0033:0x7f17c050238a
[ 227.581180][ T5936] 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
[ 227.600776][ T5936] RSP: 002b:00007f17bfb6fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 227.609283][ T5936] RAX: ffffffffffffffda RBX: 00007f17bfb6fef0 RCX: 00007f17c050238a
[ 227.617244][ T5936] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f17bfb6feb0
[ 227.625304][ T5936] RBP: 0000200000000400 R08: 00007f17bfb6fef0 R09: 0000000000000000
[ 227.633355][ T5936] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 227.641405][ T5936] R13: 00007f17bfb6feb0 R14: 00000000000125ed R15: 0000200000000640
[ 227.649464][ T5936]
[ 227.654037][ T5936] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 227.667222][ T5936] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 227.736686][ T5938] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 227.744127][ T5938] CPU: 0 PID: 5938 Comm: syz.1.360 Not tainted syzkaller #0
[ 227.751427][ T5938] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 227.761589][ T5938] Call Trace:
[ 227.764878][ T5938]
[ 227.767824][ T5938] dump_stack_lvl+0x168/0x230
[ 227.772605][ T5938] ? show_regs_print_info+0x20/0x20
[ 227.777906][ T5938] ? load_image+0x3b0/0x3b0
[ 227.782438][ T5938] sysfs_create_dir_ns+0x252/0x280
[ 227.787566][ T5938] ? __lock_acquire+0x7c60/0x7c60
[ 227.792873][ T5938] ? sysfs_warn_dup+0xa0/0xa0
[ 227.797717][ T5938] ? do_raw_spin_unlock+0x11d/0x230
[ 227.803023][ T5938] kobject_add_internal+0x662/0xd00
[ 227.808337][ T5938] kobject_init_and_add+0x122/0x190
[ 227.813556][ T5938] ? lockdep_softirqs_off+0x420/0x420
[ 227.818952][ T5938] ? kobject_add+0x210/0x210
[ 227.823657][ T5938] ? __init_swait_queue_head+0xa5/0x150
[ 227.829313][ T5938] gfs2_sys_fs_add+0x234/0x480
[ 227.834089][ T5938] ? gfs2_recover_set+0x240/0x240
[ 227.839115][ T5938] ? snprintf+0xd7/0x120
[ 227.843352][ T5938] ? __free_pages+0x95/0x1a0
[ 227.848038][ T5938] ? vscnprintf+0x80/0x80
[ 227.852376][ T5938] gfs2_fill_super+0x128d/0x1f50
[ 227.857322][ T5938] ? gfs2_reconfigure+0xcd0/0xcd0
[ 227.862351][ T5938] ? preempt_count_add+0x8d/0x190
[ 227.867494][ T5938] ? sb_set_blocksize+0xa5/0xe0
[ 227.872533][ T5938] get_tree_bdev+0x3f1/0x610
[ 227.877138][ T5938] ? gfs2_reconfigure+0xcd0/0xcd0
[ 227.882180][ T5938] gfs2_get_tree+0x4d/0x1e0
[ 227.886713][ T5938] vfs_get_tree+0x88/0x270
[ 227.891231][ T5938] do_new_mount+0x24a/0xa40
[ 227.895788][ T5938] __se_sys_mount+0x2d6/0x3c0
[ 227.900570][ T5938] ? __x64_sys_mount+0xc0/0xc0
[ 227.905356][ T5938] ? lockdep_hardirqs_on+0x94/0x140
[ 227.911263][ T5938] ? __x64_sys_mount+0x1c/0xc0
[ 227.916135][ T5938] do_syscall_64+0x4c/0xa0
[ 227.920676][ T5938] ? clear_bhb_loop+0x30/0x80
[ 227.925366][ T5938] ? clear_bhb_loop+0x30/0x80
[ 227.930058][ T5938] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 227.936058][ T5938] RIP: 0033:0x7f9ea399238a
[ 227.940846][ T5938] 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
[ 227.960557][ T5938] RSP: 002b:00007f9ea2fffe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 227.969090][ T5938] RAX: ffffffffffffffda RBX: 00007f9ea2fffef0 RCX: 00007f9ea399238a
[ 227.977070][ T5938] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fffeb0
[ 227.985173][ T5938] RBP: 0000200000000400 R08: 00007f9ea2fffef0 R09: 0000000000000000
[ 227.993339][ T5938] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 228.001539][ T5938] R13: 00007f9ea2fffeb0 R14: 00000000000125ed R15: 0000200000000640
[ 228.009550][ T5938]
[ 228.013725][ T5938] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 228.027747][ T5938] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 228.302337][ T5947] loop5: detected capacity change from 0 to 32768
[ 228.404676][ T5944] loop4: detected capacity change from 0 to 32768
[ 228.501108][ T5947] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 228.509052][ T5947] CPU: 0 PID: 5947 Comm: syz.5.364 Not tainted syzkaller #0
[ 228.516529][ T5947] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 228.527606][ T5947] Call Trace:
[ 228.531066][ T5947]
[ 228.534082][ T5947] dump_stack_lvl+0x168/0x230
[ 228.538857][ T5947] ? show_regs_print_info+0x20/0x20
[ 228.544167][ T5947] ? load_image+0x3b0/0x3b0
[ 228.548818][ T5947] sysfs_create_dir_ns+0x252/0x280
[ 228.553953][ T5947] ? __lock_acquire+0x7c60/0x7c60
[ 228.558993][ T5947] ? sysfs_warn_dup+0xa0/0xa0
[ 228.563697][ T5947] ? do_raw_spin_unlock+0x11d/0x230
[ 228.568911][ T5947] kobject_add_internal+0x662/0xd00
[ 228.574228][ T5947] kobject_init_and_add+0x122/0x190
[ 228.579445][ T5947] ? lockdep_softirqs_off+0x420/0x420
[ 228.584942][ T5947] ? kobject_add+0x210/0x210
[ 228.589641][ T5947] ? __init_swait_queue_head+0xa5/0x150
[ 228.595221][ T5947] gfs2_sys_fs_add+0x234/0x480
[ 228.600176][ T5947] ? gfs2_recover_set+0x240/0x240
[ 228.605226][ T5947] ? snprintf+0xd7/0x120
[ 228.609485][ T5947] ? __free_pages+0x95/0x1a0
[ 228.614106][ T5947] ? vscnprintf+0x80/0x80
[ 228.618460][ T5947] gfs2_fill_super+0x128d/0x1f50
[ 228.623684][ T5947] ? gfs2_reconfigure+0xcd0/0xcd0
[ 228.628885][ T5947] ? preempt_count_add+0x8d/0x190
[ 228.634011][ T5947] ? sb_set_blocksize+0xa5/0xe0
[ 228.639052][ T5947] get_tree_bdev+0x3f1/0x610
[ 228.643660][ T5947] ? gfs2_reconfigure+0xcd0/0xcd0
[ 228.648696][ T5947] gfs2_get_tree+0x4d/0x1e0
[ 228.653212][ T5947] vfs_get_tree+0x88/0x270
[ 228.657633][ T5947] do_new_mount+0x24a/0xa40
[ 228.662231][ T5947] __se_sys_mount+0x2d6/0x3c0
[ 228.667000][ T5947] ? __x64_sys_mount+0xc0/0xc0
[ 228.671769][ T5947] ? lockdep_hardirqs_on+0x94/0x140
[ 228.676979][ T5947] ? __x64_sys_mount+0x1c/0xc0
[ 228.681753][ T5947] do_syscall_64+0x4c/0xa0
[ 228.686174][ T5947] ? clear_bhb_loop+0x30/0x80
[ 228.690851][ T5947] ? clear_bhb_loop+0x30/0x80
[ 228.695536][ T5947] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 228.701431][ T5947] RIP: 0033:0x7eff7626138a
[ 228.706004][ T5947] 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
[ 228.726144][ T5947] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 228.734585][ T5947] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 228.742845][ T5947] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 228.750832][ T5947] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 228.759088][ T5947] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 228.767430][ T5947] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 228.775518][ T5947]
[ 228.779769][ T5947] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 228.782192][ T5944] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 228.793043][ T5947] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 228.807286][ T5944] CPU: 1 PID: 5944 Comm: syz.4.362 Not tainted syzkaller #0
[ 228.815458][ T5944] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 228.825870][ T5944] Call Trace:
[ 228.829271][ T5944]
[ 228.832203][ T5944] dump_stack_lvl+0x168/0x230
[ 228.836899][ T5944] ? show_regs_print_info+0x20/0x20
[ 228.842200][ T5944] ? load_image+0x3b0/0x3b0
[ 228.846748][ T5944] sysfs_create_dir_ns+0x252/0x280
[ 228.851966][ T5944] ? __lock_acquire+0x7c60/0x7c60
[ 228.857092][ T5944] ? sysfs_warn_dup+0xa0/0xa0
[ 228.861876][ T5944] ? do_raw_spin_unlock+0x11d/0x230
[ 228.867091][ T5944] kobject_add_internal+0x662/0xd00
[ 228.872292][ T5944] kobject_init_and_add+0x122/0x190
[ 228.877603][ T5944] ? lockdep_softirqs_off+0x420/0x420
[ 228.883092][ T5944] ? kobject_add+0x210/0x210
[ 228.887849][ T5944] ? __init_swait_queue_head+0xa5/0x150
[ 228.893474][ T5944] gfs2_sys_fs_add+0x234/0x480
[ 228.898334][ T5944] ? gfs2_recover_set+0x240/0x240
[ 228.903447][ T5944] ? snprintf+0xd7/0x120
[ 228.907676][ T5944] ? __free_pages+0x95/0x1a0
[ 228.912255][ T5944] ? vscnprintf+0x80/0x80
[ 228.916690][ T5944] gfs2_fill_super+0x128d/0x1f50
[ 228.921644][ T5944] ? gfs2_reconfigure+0xcd0/0xcd0
[ 228.926654][ T5944] ? preempt_count_add+0x8d/0x190
[ 228.931670][ T5944] ? sb_set_blocksize+0xa5/0xe0
[ 228.936510][ T5944] get_tree_bdev+0x3f1/0x610
[ 228.941178][ T5944] ? gfs2_reconfigure+0xcd0/0xcd0
[ 228.946279][ T5944] gfs2_get_tree+0x4d/0x1e0
[ 228.951213][ T5944] vfs_get_tree+0x88/0x270
[ 228.955719][ T5944] do_new_mount+0x24a/0xa40
[ 228.960343][ T5944] __se_sys_mount+0x2d6/0x3c0
[ 228.965026][ T5944] ? __x64_sys_mount+0xc0/0xc0
[ 228.969865][ T5944] ? lockdep_hardirqs_on+0x94/0x140
[ 228.975083][ T5944] ? __x64_sys_mount+0x1c/0xc0
[ 228.980114][ T5944] do_syscall_64+0x4c/0xa0
[ 228.984534][ T5944] ? clear_bhb_loop+0x30/0x80
[ 228.989293][ T5944] ? clear_bhb_loop+0x30/0x80
[ 228.993959][ T5944] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 228.999838][ T5944] RIP: 0033:0x7f000dda438a
[ 229.004242][ T5944] 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
[ 229.024039][ T5944] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 229.032455][ T5944] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 229.040502][ T5944] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 229.048623][ T5944] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 229.056594][ T5944] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 229.064563][ T5944] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 229.072631][ T5944]
[ 229.077041][ T5944] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 229.090556][ T5944] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 229.394357][ T5959] loop1: detected capacity change from 0 to 32768
[ 229.766249][ T5961] loop5: detected capacity change from 0 to 32768
[ 229.770312][ T5963] loop4: detected capacity change from 0 to 32768
[ 229.800097][ T5959] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 229.807712][ T5959] CPU: 0 PID: 5959 Comm: syz.1.368 Not tainted syzkaller #0
[ 229.815126][ T5959] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 229.825370][ T5959] Call Trace:
[ 229.828658][ T5959]
[ 229.831600][ T5959] dump_stack_lvl+0x168/0x230
[ 229.836308][ T5959] ? show_regs_print_info+0x20/0x20
[ 229.841525][ T5959] ? load_image+0x3b0/0x3b0
[ 229.846077][ T5959] sysfs_create_dir_ns+0x252/0x280
[ 229.851219][ T5959] ? __lock_acquire+0x7c60/0x7c60
[ 229.856270][ T5959] ? sysfs_warn_dup+0xa0/0xa0
[ 229.861049][ T5959] ? do_raw_spin_unlock+0x11d/0x230
[ 229.866273][ T5959] kobject_add_internal+0x662/0xd00
[ 229.871674][ T5959] kobject_init_and_add+0x122/0x190
[ 229.877005][ T5959] ? lockdep_softirqs_off+0x420/0x420
[ 229.882399][ T5959] ? kobject_add+0x210/0x210
[ 229.887011][ T5959] ? __init_swait_queue_head+0xa5/0x150
[ 229.892720][ T5959] gfs2_sys_fs_add+0x234/0x480
[ 229.897585][ T5959] ? gfs2_recover_set+0x240/0x240
[ 229.902621][ T5959] ? snprintf+0xd7/0x120
[ 229.906974][ T5959] ? __free_pages+0x95/0x1a0
[ 229.911676][ T5959] ? vscnprintf+0x80/0x80
[ 229.916378][ T5959] gfs2_fill_super+0x128d/0x1f50
[ 229.921353][ T5959] ? gfs2_reconfigure+0xcd0/0xcd0
[ 229.926483][ T5959] ? preempt_count_add+0x8d/0x190
[ 229.931711][ T5959] ? sb_set_blocksize+0xa5/0xe0
[ 229.936581][ T5959] get_tree_bdev+0x3f1/0x610
[ 229.941193][ T5959] ? gfs2_reconfigure+0xcd0/0xcd0
[ 229.946587][ T5959] gfs2_get_tree+0x4d/0x1e0
[ 229.951103][ T5959] vfs_get_tree+0x88/0x270
[ 229.955536][ T5959] do_new_mount+0x24a/0xa40
[ 229.960062][ T5959] __se_sys_mount+0x2d6/0x3c0
[ 229.964861][ T5959] ? __x64_sys_mount+0xc0/0xc0
[ 229.969861][ T5959] ? lockdep_hardirqs_on+0x94/0x140
[ 229.975090][ T5959] ? __x64_sys_mount+0x1c/0xc0
[ 229.980144][ T5959] do_syscall_64+0x4c/0xa0
[ 229.984658][ T5959] ? clear_bhb_loop+0x30/0x80
[ 229.989603][ T5959] ? clear_bhb_loop+0x30/0x80
[ 229.994303][ T5959] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 230.000216][ T5959] RIP: 0033:0x7f9ea399238a
[ 230.004733][ T5959] 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
[ 230.024607][ T5959] RSP: 002b:00007f9ea2fffe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 230.033132][ T5959] RAX: ffffffffffffffda RBX: 00007f9ea2fffef0 RCX: 00007f9ea399238a
[ 230.041124][ T5959] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fffeb0
[ 230.049111][ T5959] RBP: 0000200000000400 R08: 00007f9ea2fffef0 R09: 0000000000000000
[ 230.057103][ T5959] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 230.065523][ T5959] R13: 00007f9ea2fffeb0 R14: 00000000000125ed R15: 0000200000000640
[ 230.073532][ T5959]
[ 230.076726][ T5959] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 230.089868][ T5959] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 230.106354][ T5963] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 230.114003][ T5963] CPU: 0 PID: 5963 Comm: syz.4.370 Not tainted syzkaller #0
[ 230.114867][ T5961] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 230.121491][ T5963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 230.138979][ T5963] Call Trace:
[ 230.142338][ T5963]
[ 230.145257][ T5963] dump_stack_lvl+0x168/0x230
[ 230.150030][ T5963] ? show_regs_print_info+0x20/0x20
[ 230.155321][ T5963] ? load_image+0x3b0/0x3b0
[ 230.159906][ T5963] sysfs_create_dir_ns+0x252/0x280
[ 230.165009][ T5963] ? __lock_acquire+0x7c60/0x7c60
[ 230.170113][ T5963] ? sysfs_warn_dup+0xa0/0xa0
[ 230.174869][ T5963] ? do_raw_spin_unlock+0x11d/0x230
[ 230.180077][ T5963] kobject_add_internal+0x662/0xd00
[ 230.185658][ T5963] kobject_init_and_add+0x122/0x190
[ 230.190891][ T5963] ? lockdep_softirqs_off+0x420/0x420
[ 230.196258][ T5963] ? kobject_add+0x210/0x210
[ 230.200850][ T5963] ? __init_swait_queue_head+0xa5/0x150
[ 230.206508][ T5963] gfs2_sys_fs_add+0x234/0x480
[ 230.211292][ T5963] ? gfs2_recover_set+0x240/0x240
[ 230.216492][ T5963] ? snprintf+0xd7/0x120
[ 230.220726][ T5963] ? __free_pages+0x95/0x1a0
[ 230.225312][ T5963] ? vscnprintf+0x80/0x80
[ 230.229903][ T5963] gfs2_fill_super+0x128d/0x1f50
[ 230.234937][ T5963] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.240051][ T5963] ? preempt_count_add+0x8d/0x190
[ 230.245337][ T5963] ? sb_set_blocksize+0xa5/0xe0
[ 230.250286][ T5963] get_tree_bdev+0x3f1/0x610
[ 230.254881][ T5963] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.260012][ T5963] gfs2_get_tree+0x4d/0x1e0
[ 230.264606][ T5963] vfs_get_tree+0x88/0x270
[ 230.269104][ T5963] do_new_mount+0x24a/0xa40
[ 230.273605][ T5963] __se_sys_mount+0x2d6/0x3c0
[ 230.278446][ T5963] ? __x64_sys_mount+0xc0/0xc0
[ 230.283289][ T5963] ? lockdep_hardirqs_on+0x94/0x140
[ 230.288573][ T5963] ? __x64_sys_mount+0x1c/0xc0
[ 230.293324][ T5963] do_syscall_64+0x4c/0xa0
[ 230.297875][ T5963] ? clear_bhb_loop+0x30/0x80
[ 230.302748][ T5963] ? clear_bhb_loop+0x30/0x80
[ 230.307458][ T5963] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 230.313345][ T5963] RIP: 0033:0x7f000dda438a
[ 230.317750][ T5963] 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
[ 230.337780][ T5963] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 230.346189][ T5963] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 230.354338][ T5963] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 230.362512][ T5963] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 230.370499][ T5963] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 230.378474][ T5963] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 230.386538][ T5963]
[ 230.389633][ T5961] CPU: 1 PID: 5961 Comm: syz.5.369 Not tainted syzkaller #0
[ 230.392871][ T5963] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 230.397056][ T5961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 230.397072][ T5961] Call Trace:
[ 230.397080][ T5961]
[ 230.397088][ T5961] dump_stack_lvl+0x168/0x230
[ 230.397115][ T5961] ? show_regs_print_info+0x20/0x20
[ 230.397131][ T5961] ? load_image+0x3b0/0x3b0
[ 230.397155][ T5961] sysfs_create_dir_ns+0x252/0x280
[ 230.397173][ T5961] ? __lock_acquire+0x7c60/0x7c60
[ 230.397190][ T5961] ? sysfs_warn_dup+0xa0/0xa0
[ 230.397208][ T5961] ? do_raw_spin_unlock+0x11d/0x230
[ 230.397226][ T5961] kobject_add_internal+0x662/0xd00
[ 230.397249][ T5961] kobject_init_and_add+0x122/0x190
[ 230.397264][ T5961] ? lockdep_softirqs_off+0x420/0x420
[ 230.397282][ T5961] ? kobject_add+0x210/0x210
[ 230.397299][ T5961] ? __init_swait_queue_head+0xa5/0x150
[ 230.397321][ T5961] gfs2_sys_fs_add+0x234/0x480
[ 230.397339][ T5961] ? gfs2_recover_set+0x240/0x240
[ 230.397355][ T5961] ? snprintf+0xd7/0x120
[ 230.397372][ T5961] ? __free_pages+0x95/0x1a0
[ 230.397393][ T5961] ? vscnprintf+0x80/0x80
[ 230.397422][ T5961] gfs2_fill_super+0x128d/0x1f50
[ 230.397460][ T5961] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.397478][ T5961] ? preempt_count_add+0x8d/0x190
[ 230.397506][ T5961] ? sb_set_blocksize+0xa5/0xe0
[ 230.397528][ T5961] get_tree_bdev+0x3f1/0x610
[ 230.397548][ T5961] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.397568][ T5961] gfs2_get_tree+0x4d/0x1e0
[ 230.397586][ T5961] vfs_get_tree+0x88/0x270
[ 230.397601][ T5961] do_new_mount+0x24a/0xa40
[ 230.397622][ T5961] __se_sys_mount+0x2d6/0x3c0
[ 230.397642][ T5961] ? __x64_sys_mount+0xc0/0xc0
[ 230.397662][ T5961] ? lockdep_hardirqs_on+0x94/0x140
[ 230.397678][ T5961] ? __x64_sys_mount+0x1c/0xc0
[ 230.397695][ T5961] do_syscall_64+0x4c/0xa0
[ 230.397708][ T5961] ? clear_bhb_loop+0x30/0x80
[ 230.397724][ T5961] ? clear_bhb_loop+0x30/0x80
[ 230.397741][ T5961] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 230.397758][ T5961] RIP: 0033:0x7eff7626138a
[ 230.397775][ T5961] 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
[ 230.397787][ T5961] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 230.397805][ T5961] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 230.397817][ T5961] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 230.397830][ T5961] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 230.397842][ T5961] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 230.397854][ T5961] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 230.397886][ T5961]
[ 230.397945][ T5961] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 230.397960][ T5961] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 230.692302][ T5963] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 230.877143][ T5956] loop0: detected capacity change from 0 to 32768
[ 230.986601][ T5956] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 231.253804][ T5956] CPU: 0 PID: 5956 Comm: syz.0.365 Not tainted syzkaller #0
[ 231.261334][ T5956] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 231.271481][ T5956] Call Trace:
[ 231.274914][ T5956]
[ 231.277963][ T5956] dump_stack_lvl+0x168/0x230
[ 231.282659][ T5956] ? show_regs_print_info+0x20/0x20
[ 231.287968][ T5956] ? load_image+0x3b0/0x3b0
[ 231.292536][ T5956] sysfs_create_dir_ns+0x252/0x280
[ 231.297697][ T5956] ? __lock_acquire+0x7c60/0x7c60
[ 231.302788][ T5956] ? sysfs_warn_dup+0xa0/0xa0
[ 231.307489][ T5956] ? do_raw_spin_unlock+0x11d/0x230
[ 231.312794][ T5956] kobject_add_internal+0x662/0xd00
[ 231.318188][ T5956] kobject_init_and_add+0x122/0x190
[ 231.323398][ T5956] ? lockdep_softirqs_off+0x420/0x420
[ 231.329033][ T5956] ? kobject_add+0x210/0x210
[ 231.333641][ T5956] ? __init_swait_queue_head+0xa5/0x150
[ 231.339291][ T5956] gfs2_sys_fs_add+0x234/0x480
[ 231.344161][ T5956] ? gfs2_recover_set+0x240/0x240
[ 231.349343][ T5956] ? snprintf+0xd7/0x120
[ 231.353642][ T5956] ? __free_pages+0x95/0x1a0
[ 231.358331][ T5956] ? vscnprintf+0x80/0x80
[ 231.362683][ T5956] gfs2_fill_super+0x128d/0x1f50
[ 231.367753][ T5956] ? gfs2_reconfigure+0xcd0/0xcd0
[ 231.372997][ T5956] ? preempt_count_add+0x8d/0x190
[ 231.378048][ T5956] ? sb_set_blocksize+0xa5/0xe0
[ 231.383392][ T5956] get_tree_bdev+0x3f1/0x610
[ 231.388005][ T5956] ? gfs2_reconfigure+0xcd0/0xcd0
[ 231.393056][ T5956] gfs2_get_tree+0x4d/0x1e0
[ 231.397588][ T5956] vfs_get_tree+0x88/0x270
[ 231.402028][ T5956] do_new_mount+0x24a/0xa40
[ 231.406555][ T5956] __se_sys_mount+0x2d6/0x3c0
[ 231.411273][ T5956] ? __x64_sys_mount+0xc0/0xc0
[ 231.416152][ T5956] ? lockdep_hardirqs_on+0x94/0x140
[ 231.421409][ T5956] ? __x64_sys_mount+0x1c/0xc0
[ 231.426191][ T5956] do_syscall_64+0x4c/0xa0
[ 231.430624][ T5956] ? clear_bhb_loop+0x30/0x80
[ 231.435453][ T5956] ? clear_bhb_loop+0x30/0x80
[ 231.440125][ T5956] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 231.446090][ T5956] RIP: 0033:0x7f454a19a38a
[ 231.450490][ T5956] 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
[ 231.470431][ T5956] RSP: 002b:00007f45497c5e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 231.479012][ T5956] RAX: ffffffffffffffda RBX: 00007f45497c5ef0 RCX: 00007f454a19a38a
[ 231.486977][ T5956] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f45497c5eb0
[ 231.495036][ T5956] RBP: 0000200000000400 R08: 00007f45497c5ef0 R09: 0000000000000000
[ 231.503002][ T5956] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 231.510974][ T5956] R13: 00007f45497c5eb0 R14: 00000000000125ed R15: 0000200000000640
[ 231.519057][ T5956]
[ 231.634223][ T5956] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 231.744158][ T5956] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 231.845317][ T5974] loop4: detected capacity change from 0 to 32768
[ 232.187625][ T5977] loop5: detected capacity change from 0 to 32768
[ 232.304076][ T5974] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 232.311753][ T5974] CPU: 0 PID: 5974 Comm: syz.4.376 Not tainted syzkaller #0
[ 232.319236][ T5974] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 232.329400][ T5974] Call Trace:
[ 232.332751][ T5974]
[ 232.335709][ T5974] dump_stack_lvl+0x168/0x230
[ 232.340537][ T5974] ? show_regs_print_info+0x20/0x20
[ 232.345886][ T5974] ? load_image+0x3b0/0x3b0
[ 232.350424][ T5974] sysfs_create_dir_ns+0x252/0x280
[ 232.355694][ T5974] ? __lock_acquire+0x7c60/0x7c60
[ 232.360749][ T5974] ? sysfs_warn_dup+0xa0/0xa0
[ 232.364161][ T5977] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 232.365442][ T5974] ? do_raw_spin_unlock+0x11d/0x230
[ 232.378062][ T5974] kobject_add_internal+0x662/0xd00
[ 232.383437][ T5974] kobject_init_and_add+0x122/0x190
[ 232.388977][ T5974] ? lockdep_softirqs_off+0x420/0x420
[ 232.394348][ T5974] ? kobject_add+0x210/0x210
[ 232.398932][ T5974] ? __init_swait_queue_head+0xa5/0x150
[ 232.404576][ T5974] gfs2_sys_fs_add+0x234/0x480
[ 232.409654][ T5974] ? gfs2_recover_set+0x240/0x240
[ 232.414805][ T5974] ? snprintf+0xd7/0x120
[ 232.419048][ T5974] ? __free_pages+0x95/0x1a0
[ 232.423804][ T5974] ? vscnprintf+0x80/0x80
[ 232.428131][ T5974] gfs2_fill_super+0x128d/0x1f50
[ 232.433155][ T5974] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.438181][ T5974] ? preempt_count_add+0x8d/0x190
[ 232.443208][ T5974] ? sb_set_blocksize+0xa5/0xe0
[ 232.448139][ T5974] get_tree_bdev+0x3f1/0x610
[ 232.452847][ T5974] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.457989][ T5974] gfs2_get_tree+0x4d/0x1e0
[ 232.462607][ T5974] vfs_get_tree+0x88/0x270
[ 232.467034][ T5974] do_new_mount+0x24a/0xa40
[ 232.471534][ T5974] __se_sys_mount+0x2d6/0x3c0
[ 232.476202][ T5974] ? __x64_sys_mount+0xc0/0xc0
[ 232.480959][ T5974] ? lockdep_hardirqs_on+0x94/0x140
[ 232.486466][ T5974] ? __x64_sys_mount+0x1c/0xc0
[ 232.491241][ T5974] do_syscall_64+0x4c/0xa0
[ 232.495656][ T5974] ? clear_bhb_loop+0x30/0x80
[ 232.500336][ T5974] ? clear_bhb_loop+0x30/0x80
[ 232.505046][ T5974] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 232.511135][ T5974] RIP: 0033:0x7f000dda438a
[ 232.515647][ T5974] 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
[ 232.536729][ T5974] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 232.545146][ T5974] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 232.553281][ T5974] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 232.561533][ T5974] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 232.569663][ T5974] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 232.577859][ T5974] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 232.585855][ T5974]
[ 232.588866][ T5977] CPU: 1 PID: 5977 Comm: syz.5.375 Not tainted syzkaller #0
2025/09/25 23:53:59 executed programs: 371
[ 232.589909][ T5974] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 232.596817][ T5977] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 232.596829][ T5977] Call Trace:
[ 232.596835][ T5977]
[ 232.596842][ T5977] dump_stack_lvl+0x168/0x230
[ 232.610809][ T5974] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 232.621712][ T5977] ? show_regs_print_info+0x20/0x20
[ 232.621746][ T5977] ? load_image+0x3b0/0x3b0
[ 232.621771][ T5977] sysfs_create_dir_ns+0x252/0x280
[ 232.654954][ T5977] ? __lock_acquire+0x7c60/0x7c60
[ 232.660056][ T5977] ? sysfs_warn_dup+0xa0/0xa0
[ 232.664847][ T5977] ? do_raw_spin_unlock+0x11d/0x230
[ 232.670172][ T5977] kobject_add_internal+0x662/0xd00
[ 232.675409][ T5977] kobject_init_and_add+0x122/0x190
[ 232.680702][ T5977] ? lockdep_softirqs_off+0x420/0x420
[ 232.686093][ T5977] ? kobject_add+0x210/0x210
[ 232.690774][ T5977] ? __init_swait_queue_head+0xa5/0x150
[ 232.696363][ T5977] gfs2_sys_fs_add+0x234/0x480
[ 232.701150][ T5977] ? gfs2_recover_set+0x240/0x240
[ 232.706188][ T5977] ? snprintf+0xd7/0x120
[ 232.710581][ T5977] ? __free_pages+0x95/0x1a0
[ 232.715404][ T5977] ? vscnprintf+0x80/0x80
[ 232.719757][ T5977] gfs2_fill_super+0x128d/0x1f50
[ 232.725003][ T5977] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.730220][ T5977] ? preempt_count_add+0x8d/0x190
[ 232.735530][ T5977] ? sb_set_blocksize+0xa5/0xe0
[ 232.740484][ T5977] get_tree_bdev+0x3f1/0x610
[ 232.745268][ T5977] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.750470][ T5977] gfs2_get_tree+0x4d/0x1e0
[ 232.754994][ T5977] vfs_get_tree+0x88/0x270
[ 232.759434][ T5977] do_new_mount+0x24a/0xa40
[ 232.763976][ T5977] __se_sys_mount+0x2d6/0x3c0
[ 232.768683][ T5977] ? __x64_sys_mount+0xc0/0xc0
[ 232.773557][ T5977] ? lockdep_hardirqs_on+0x94/0x140
[ 232.778791][ T5977] ? __x64_sys_mount+0x1c/0xc0
[ 232.783615][ T5977] do_syscall_64+0x4c/0xa0
[ 232.788050][ T5977] ? clear_bhb_loop+0x30/0x80
[ 232.792747][ T5977] ? clear_bhb_loop+0x30/0x80
[ 232.797544][ T5977] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 232.803634][ T5977] RIP: 0033:0x7eff7626138a
[ 232.808065][ T5977] 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
[ 232.827766][ T5977] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 232.836193][ T5977] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 232.844176][ T5977] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 232.852159][ T5977] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 232.860227][ T5977] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 232.868293][ T5977] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 232.876383][ T5977]
[ 232.880530][ T5977] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 232.894346][ T5977] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 233.169856][ T5980] loop0: detected capacity change from 0 to 32768
[ 233.270697][ T5980] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 233.278186][ T5980] CPU: 1 PID: 5980 Comm: syz.0.378 Not tainted syzkaller #0
[ 233.285471][ T5980] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 233.295656][ T5980] Call Trace:
[ 233.298942][ T5980]
[ 233.301893][ T5980] dump_stack_lvl+0x168/0x230
[ 233.306693][ T5980] ? show_regs_print_info+0x20/0x20
[ 233.312167][ T5980] ? load_image+0x3b0/0x3b0
[ 233.316700][ T5980] sysfs_create_dir_ns+0x252/0x280
[ 233.321828][ T5980] ? __lock_acquire+0x7c60/0x7c60
[ 233.326872][ T5980] ? sysfs_warn_dup+0xa0/0xa0
[ 233.331603][ T5980] ? do_raw_spin_unlock+0x11d/0x230
[ 233.336912][ T5980] kobject_add_internal+0x662/0xd00
[ 233.342134][ T5980] kobject_init_and_add+0x122/0x190
[ 233.347346][ T5980] ? lockdep_softirqs_off+0x420/0x420
[ 233.352827][ T5980] ? kobject_add+0x210/0x210
[ 233.357800][ T5980] ? __init_swait_queue_head+0xa5/0x150
[ 233.363385][ T5980] gfs2_sys_fs_add+0x234/0x480
[ 233.368380][ T5980] ? gfs2_recover_set+0x240/0x240
[ 233.373943][ T5980] ? snprintf+0xd7/0x120
[ 233.378469][ T5980] ? __free_pages+0x95/0x1a0
[ 233.383079][ T5980] ? vscnprintf+0x80/0x80
[ 233.387519][ T5980] gfs2_fill_super+0x128d/0x1f50
[ 233.392490][ T5980] ? gfs2_reconfigure+0xcd0/0xcd0
[ 233.397538][ T5980] ? preempt_count_add+0x8d/0x190
[ 233.402606][ T5980] ? sb_set_blocksize+0xa5/0xe0
[ 233.407580][ T5980] get_tree_bdev+0x3f1/0x610
[ 233.412374][ T5980] ? gfs2_reconfigure+0xcd0/0xcd0
[ 233.417407][ T5980] gfs2_get_tree+0x4d/0x1e0
[ 233.422016][ T5980] vfs_get_tree+0x88/0x270
[ 233.426449][ T5980] do_new_mount+0x24a/0xa40
[ 233.430275][ T5985] loop4: detected capacity change from 0 to 32768
[ 233.430964][ T5980] __se_sys_mount+0x2d6/0x3c0
[ 233.442124][ T5980] ? __x64_sys_mount+0xc0/0xc0
[ 233.447015][ T5980] ? lockdep_hardirqs_on+0x94/0x140
[ 233.452240][ T5980] ? __x64_sys_mount+0x1c/0xc0
[ 233.457282][ T5980] do_syscall_64+0x4c/0xa0
[ 233.461906][ T5980] ? clear_bhb_loop+0x30/0x80
[ 233.466588][ T5980] ? clear_bhb_loop+0x30/0x80
[ 233.471288][ T5980] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 233.477200][ T5980] RIP: 0033:0x7f454a19a38a
[ 233.481624][ T5980] 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
[ 233.501410][ T5980] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 233.501987][ T5970] loop1: detected capacity change from 0 to 32768
[ 233.510019][ T5980] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 233.510034][ T5980] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 233.510044][ T5980] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 233.510054][ T5980] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 233.510064][ T5980] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 233.510088][ T5980]
[ 233.510160][ T5980] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 233.573862][ T5980] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 233.619325][ T5970] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 233.668498][ T5985] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 233.673925][ T5970] CPU: 1 PID: 5970 Comm: syz.1.373 Not tainted syzkaller #0
[ 233.683863][ T5970] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 233.694385][ T5970] Call Trace:
[ 233.697680][ T5970]
[ 233.700805][ T5970] dump_stack_lvl+0x168/0x230
[ 233.705592][ T5970] ? show_regs_print_info+0x20/0x20
[ 233.710885][ T5970] ? load_image+0x3b0/0x3b0
[ 233.715400][ T5970] sysfs_create_dir_ns+0x252/0x280
[ 233.720730][ T5970] ? __lock_acquire+0x7c60/0x7c60
[ 233.725751][ T5970] ? sysfs_warn_dup+0xa0/0xa0
[ 233.730598][ T5970] ? do_raw_spin_unlock+0x11d/0x230
[ 233.735788][ T5970] kobject_add_internal+0x662/0xd00
[ 233.741185][ T5970] kobject_init_and_add+0x122/0x190
[ 233.746420][ T5970] ? lockdep_softirqs_off+0x420/0x420
[ 233.751983][ T5970] ? kobject_add+0x210/0x210
[ 233.756569][ T5970] ? __init_swait_queue_head+0xa5/0x150
[ 233.762241][ T5970] gfs2_sys_fs_add+0x234/0x480
[ 233.767179][ T5970] ? gfs2_recover_set+0x240/0x240
[ 233.772724][ T5970] ? snprintf+0xd7/0x120
[ 233.777222][ T5970] ? __free_pages+0x95/0x1a0
[ 233.781841][ T5970] ? vscnprintf+0x80/0x80
[ 233.786175][ T5970] gfs2_fill_super+0x128d/0x1f50
[ 233.791291][ T5970] ? gfs2_reconfigure+0xcd0/0xcd0
[ 233.796425][ T5970] ? preempt_count_add+0x8d/0x190
[ 233.801453][ T5970] ? sb_set_blocksize+0xa5/0xe0
[ 233.806402][ T5970] get_tree_bdev+0x3f1/0x610
[ 233.811188][ T5970] ? gfs2_reconfigure+0xcd0/0xcd0
[ 233.816214][ T5970] gfs2_get_tree+0x4d/0x1e0
[ 233.820750][ T5970] vfs_get_tree+0x88/0x270
[ 233.825441][ T5970] do_new_mount+0x24a/0xa40
[ 233.830133][ T5970] __se_sys_mount+0x2d6/0x3c0
[ 233.835444][ T5970] ? __x64_sys_mount+0xc0/0xc0
[ 233.840230][ T5970] ? lockdep_hardirqs_on+0x94/0x140
[ 233.845438][ T5970] ? __x64_sys_mount+0x1c/0xc0
[ 233.850377][ T5970] do_syscall_64+0x4c/0xa0
[ 233.854899][ T5970] ? clear_bhb_loop+0x30/0x80
[ 233.859652][ T5970] ? clear_bhb_loop+0x30/0x80
[ 233.864347][ T5970] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 233.870343][ T5970] RIP: 0033:0x7f9ea399238a
[ 233.874764][ T5970] 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
[ 233.894820][ T5970] RSP: 002b:00007f9ea2fdee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 233.903235][ T5970] RAX: ffffffffffffffda RBX: 00007f9ea2fdeef0 RCX: 00007f9ea399238a
[ 233.911498][ T5970] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fdeeb0
[ 233.919549][ T5970] RBP: 0000200000000400 R08: 00007f9ea2fdeef0 R09: 0000000000000000
[ 233.927519][ T5970] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 233.935630][ T5970] R13: 00007f9ea2fdeeb0 R14: 00000000000125ed R15: 0000200000000640
[ 233.943618][ T5970]
[ 233.946775][ T5985] CPU: 0 PID: 5985 Comm: syz.4.380 Not tainted syzkaller #0
[ 233.954148][ T5985] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 233.964332][ T5985] Call Trace:
[ 233.967836][ T5985]
[ 233.970982][ T5985] dump_stack_lvl+0x168/0x230
[ 233.975947][ T5985] ? show_regs_print_info+0x20/0x20
[ 233.981249][ T5985] ? load_image+0x3b0/0x3b0
[ 233.986052][ T5985] sysfs_create_dir_ns+0x252/0x280
[ 233.991378][ T5985] ? __lock_acquire+0x7c60/0x7c60
[ 233.996446][ T5985] ? sysfs_warn_dup+0xa0/0xa0
[ 234.001421][ T5985] ? do_raw_spin_unlock+0x11d/0x230
[ 234.006653][ T5985] kobject_add_internal+0x662/0xd00
[ 234.011956][ T5985] kobject_init_and_add+0x122/0x190
[ 234.017504][ T5985] ? lockdep_softirqs_off+0x420/0x420
[ 234.022888][ T5985] ? kobject_add+0x210/0x210
[ 234.027485][ T5985] ? __init_swait_queue_head+0xa5/0x150
[ 234.033227][ T5985] gfs2_sys_fs_add+0x234/0x480
[ 234.038546][ T5985] ? gfs2_recover_set+0x240/0x240
[ 234.043661][ T5985] ? snprintf+0xd7/0x120
[ 234.047910][ T5985] ? __free_pages+0x95/0x1a0
[ 234.052536][ T5985] ? vscnprintf+0x80/0x80
[ 234.057056][ T5985] gfs2_fill_super+0x128d/0x1f50
[ 234.062136][ T5985] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.067191][ T5985] ? preempt_count_add+0x8d/0x190
[ 234.072241][ T5985] ? sb_set_blocksize+0xa5/0xe0
[ 234.077113][ T5985] get_tree_bdev+0x3f1/0x610
[ 234.081736][ T5985] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.086989][ T5985] gfs2_get_tree+0x4d/0x1e0
[ 234.091527][ T5985] vfs_get_tree+0x88/0x270
[ 234.095959][ T5985] do_new_mount+0x24a/0xa40
[ 234.100734][ T5985] __se_sys_mount+0x2d6/0x3c0
[ 234.105534][ T5985] ? __x64_sys_mount+0xc0/0xc0
[ 234.110318][ T5985] ? lockdep_hardirqs_on+0x94/0x140
[ 234.115610][ T5985] ? __x64_sys_mount+0x1c/0xc0
[ 234.120411][ T5985] do_syscall_64+0x4c/0xa0
[ 234.124857][ T5985] ? clear_bhb_loop+0x30/0x80
[ 234.129648][ T5985] ? clear_bhb_loop+0x30/0x80
[ 234.134434][ T5985] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 234.140485][ T5985] RIP: 0033:0x7f000dda438a
[ 234.144935][ T5985] 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
[ 234.164995][ T5985] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 234.173424][ T5985] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 234.181767][ T5985] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 234.189933][ T5985] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 234.197961][ T5985] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 234.206164][ T5985] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 234.214342][ T5985]
[ 234.218627][ T5985] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 234.232273][ T5985] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 234.252753][ T5970] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 234.326545][ T5970] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 234.415005][ T5990] loop0: detected capacity change from 0 to 32768
[ 234.695935][ T5990] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 234.703650][ T5990] CPU: 1 PID: 5990 Comm: syz.0.382 Not tainted syzkaller #0
[ 234.710957][ T5990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 234.721102][ T5990] Call Trace:
[ 234.724555][ T5990]
[ 234.727592][ T5990] dump_stack_lvl+0x168/0x230
[ 234.732295][ T5990] ? show_regs_print_info+0x20/0x20
[ 234.737584][ T5990] ? load_image+0x3b0/0x3b0
[ 234.742099][ T5990] sysfs_create_dir_ns+0x252/0x280
[ 234.747398][ T5990] ? __lock_acquire+0x7c60/0x7c60
[ 234.751523][ T5982] loop5: detected capacity change from 0 to 32768
[ 234.752421][ T5990] ? sysfs_warn_dup+0xa0/0xa0
[ 234.763554][ T5990] ? do_raw_spin_unlock+0x11d/0x230
[ 234.768873][ T5990] kobject_add_internal+0x662/0xd00
[ 234.774105][ T5990] kobject_init_and_add+0x122/0x190
[ 234.779488][ T5990] ? lockdep_softirqs_off+0x420/0x420
[ 234.784989][ T5990] ? kobject_add+0x210/0x210
[ 234.790072][ T5990] ? __init_swait_queue_head+0xa5/0x150
[ 234.795650][ T5990] gfs2_sys_fs_add+0x234/0x480
[ 234.800443][ T5990] ? gfs2_recover_set+0x240/0x240
[ 234.805581][ T5990] ? snprintf+0xd7/0x120
[ 234.809839][ T5990] ? __free_pages+0x95/0x1a0
[ 234.814455][ T5990] ? vscnprintf+0x80/0x80
[ 234.818813][ T5990] gfs2_fill_super+0x128d/0x1f50
[ 234.823918][ T5990] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.829082][ T5990] ? preempt_count_add+0x8d/0x190
[ 234.834140][ T5990] ? sb_set_blocksize+0xa5/0xe0
[ 234.839206][ T5990] get_tree_bdev+0x3f1/0x610
[ 234.843822][ T5990] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.848853][ T5990] gfs2_get_tree+0x4d/0x1e0
[ 234.853365][ T5990] vfs_get_tree+0x88/0x270
[ 234.857793][ T5990] do_new_mount+0x24a/0xa40
[ 234.862490][ T5990] __se_sys_mount+0x2d6/0x3c0
[ 234.867189][ T5990] ? __x64_sys_mount+0xc0/0xc0
[ 234.872057][ T5990] ? lockdep_hardirqs_on+0x94/0x140
[ 234.877355][ T5990] ? __x64_sys_mount+0x1c/0xc0
[ 234.882143][ T5990] do_syscall_64+0x4c/0xa0
[ 234.886755][ T5990] ? clear_bhb_loop+0x30/0x80
[ 234.891445][ T5990] ? clear_bhb_loop+0x30/0x80
[ 234.896177][ T5990] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 234.902104][ T5990] RIP: 0033:0x7f454a19a38a
[ 234.906534][ T5990] 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
[ 234.926504][ T5990] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 234.934931][ T5990] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 234.943087][ T5990] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 234.951361][ T5990] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 234.959940][ T5990] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 234.968116][ T5990] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 234.976324][ T5990]
[ 234.980362][ T5990] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 234.995083][ T5990] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.041639][ T5987] loop3: detected capacity change from 0 to 32768
[ 235.127038][ T5982] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.153869][ T5982] CPU: 1 PID: 5982 Comm: syz.5.379 Not tainted syzkaller #0
[ 235.161295][ T5982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 235.171365][ T5982] Call Trace:
[ 235.174780][ T5982]
[ 235.177823][ T5982] dump_stack_lvl+0x168/0x230
[ 235.182602][ T5982] ? show_regs_print_info+0x20/0x20
[ 235.188026][ T5982] ? load_image+0x3b0/0x3b0
[ 235.192677][ T5982] sysfs_create_dir_ns+0x252/0x280
[ 235.198025][ T5982] ? __lock_acquire+0x7c60/0x7c60
[ 235.203067][ T5982] ? sysfs_warn_dup+0xa0/0xa0
[ 235.207764][ T5982] ? do_raw_spin_unlock+0x11d/0x230
[ 235.212972][ T5982] kobject_add_internal+0x662/0xd00
[ 235.218181][ T5982] kobject_init_and_add+0x122/0x190
[ 235.223599][ T5982] ? lockdep_softirqs_off+0x420/0x420
[ 235.229166][ T5982] ? kobject_add+0x210/0x210
[ 235.233872][ T5982] ? __init_swait_queue_head+0xa5/0x150
[ 235.239431][ T5982] gfs2_sys_fs_add+0x234/0x480
[ 235.244210][ T5982] ? gfs2_recover_set+0x240/0x240
[ 235.249238][ T5982] ? snprintf+0xd7/0x120
[ 235.253524][ T5982] ? __free_pages+0x95/0x1a0
[ 235.258122][ T5982] ? vscnprintf+0x80/0x80
[ 235.262578][ T5982] gfs2_fill_super+0x128d/0x1f50
[ 235.267552][ T5982] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.268793][ T5995] loop1: detected capacity change from 0 to 32768
[ 235.272677][ T5982] ? preempt_count_add+0x8d/0x190
[ 235.284291][ T5982] ? sb_set_blocksize+0xa5/0xe0
[ 235.289169][ T5982] get_tree_bdev+0x3f1/0x610
[ 235.293864][ T5982] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.299040][ T5982] gfs2_get_tree+0x4d/0x1e0
[ 235.303565][ T5982] vfs_get_tree+0x88/0x270
[ 235.308105][ T5982] do_new_mount+0x24a/0xa40
[ 235.312799][ T5982] __se_sys_mount+0x2d6/0x3c0
[ 235.317501][ T5982] ? __x64_sys_mount+0xc0/0xc0
[ 235.322293][ T5982] ? lockdep_hardirqs_on+0x94/0x140
[ 235.327634][ T5982] ? __x64_sys_mount+0x1c/0xc0
[ 235.332405][ T5982] do_syscall_64+0x4c/0xa0
[ 235.336825][ T5982] ? clear_bhb_loop+0x30/0x80
[ 235.341689][ T5982] ? clear_bhb_loop+0x30/0x80
[ 235.346373][ T5982] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 235.352271][ T5982] RIP: 0033:0x7eff7626138a
[ 235.356700][ T5982] 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
[ 235.376423][ T5982] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.385051][ T5982] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 235.393034][ T5982] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 235.401056][ T5982] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 235.409056][ T5982] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 235.417212][ T5982] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 235.425211][ T5982]
[ 235.433949][ T5982] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.456936][ T5995] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.464481][ T5995] CPU: 0 PID: 5995 Comm: syz.1.384 Not tainted syzkaller #0
[ 235.471791][ T5995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 235.481946][ T5995] Call Trace:
[ 235.485323][ T5995]
[ 235.488270][ T5995] dump_stack_lvl+0x168/0x230
[ 235.493190][ T5995] ? show_regs_print_info+0x20/0x20
[ 235.498393][ T5995] ? load_image+0x3b0/0x3b0
[ 235.502911][ T5995] sysfs_create_dir_ns+0x252/0x280
[ 235.508044][ T5995] ? __lock_acquire+0x7c60/0x7c60
[ 235.513088][ T5995] ? sysfs_warn_dup+0xa0/0xa0
[ 235.517795][ T5995] ? do_raw_spin_unlock+0x11d/0x230
[ 235.523130][ T5995] kobject_add_internal+0x662/0xd00
[ 235.528358][ T5995] kobject_init_and_add+0x122/0x190
[ 235.533578][ T5995] ? lockdep_softirqs_off+0x420/0x420
[ 235.539223][ T5987] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.539229][ T5995] ? kobject_add+0x210/0x210
[ 235.551756][ T5995] ? __init_swait_queue_head+0xa5/0x150
[ 235.557435][ T5995] gfs2_sys_fs_add+0x234/0x480
[ 235.562217][ T5995] ? gfs2_recover_set+0x240/0x240
[ 235.567262][ T5995] ? snprintf+0xd7/0x120
[ 235.571810][ T5995] ? __free_pages+0x95/0x1a0
[ 235.576695][ T5995] ? vscnprintf+0x80/0x80
[ 235.581054][ T5995] gfs2_fill_super+0x128d/0x1f50
[ 235.586191][ T5995] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.591231][ T5995] ? preempt_count_add+0x8d/0x190
[ 235.596362][ T5995] ? sb_set_blocksize+0xa5/0xe0
[ 235.601218][ T5995] get_tree_bdev+0x3f1/0x610
[ 235.605952][ T5995] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.611077][ T5995] gfs2_get_tree+0x4d/0x1e0
[ 235.615666][ T5995] vfs_get_tree+0x88/0x270
[ 235.620114][ T5995] do_new_mount+0x24a/0xa40
[ 235.624829][ T5995] __se_sys_mount+0x2d6/0x3c0
[ 235.629526][ T5995] ? __x64_sys_mount+0xc0/0xc0
[ 235.634615][ T5995] ? lockdep_hardirqs_on+0x94/0x140
[ 235.639961][ T5995] ? __x64_sys_mount+0x1c/0xc0
[ 235.644757][ T5995] do_syscall_64+0x4c/0xa0
[ 235.649204][ T5995] ? clear_bhb_loop+0x30/0x80
[ 235.653894][ T5995] ? clear_bhb_loop+0x30/0x80
[ 235.658590][ T5995] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 235.664713][ T5995] RIP: 0033:0x7f9ea399238a
[ 235.669204][ T5995] 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
[ 235.689278][ T5995] RSP: 002b:00007f9ea2fffe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.697882][ T5995] RAX: ffffffffffffffda RBX: 00007f9ea2fffef0 RCX: 00007f9ea399238a
[ 235.707343][ T5995] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fffeb0
[ 235.715474][ T5995] RBP: 0000200000000400 R08: 00007f9ea2fffef0 R09: 0000000000000000
[ 235.723633][ T5995] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 235.731629][ T5995] R13: 00007f9ea2fffeb0 R14: 00000000000125ed R15: 0000200000000640
[ 235.739719][ T5995]
[ 235.742857][ T5987] CPU: 1 PID: 5987 Comm: syz.3.381 Not tainted syzkaller #0
[ 235.743950][ T5995] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.750281][ T5987] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 235.750293][ T5987] Call Trace:
[ 235.764370][ T5995] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.773626][ T5987]
[ 235.773636][ T5987] dump_stack_lvl+0x168/0x230
[ 235.791180][ T5987] ? show_regs_print_info+0x20/0x20
[ 235.795297][ T5982] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.796398][ T5987] ? load_image+0x3b0/0x3b0
[ 235.807393][ T5987] sysfs_create_dir_ns+0x252/0x280
[ 235.812536][ T5987] ? __lock_acquire+0x7c60/0x7c60
[ 235.817589][ T5987] ? sysfs_warn_dup+0xa0/0xa0
[ 235.822386][ T5987] ? do_raw_spin_unlock+0x11d/0x230
[ 235.827677][ T5987] kobject_add_internal+0x662/0xd00
[ 235.832886][ T5987] kobject_init_and_add+0x122/0x190
[ 235.838109][ T5987] ? lockdep_softirqs_off+0x420/0x420
[ 235.843671][ T5987] ? kobject_add+0x210/0x210
[ 235.848280][ T5987] ? __init_swait_queue_head+0xa5/0x150
[ 235.853987][ T5987] gfs2_sys_fs_add+0x234/0x480
[ 235.858774][ T5987] ? gfs2_recover_set+0x240/0x240
[ 235.863814][ T5987] ? snprintf+0xd7/0x120
[ 235.868067][ T5987] ? __free_pages+0x95/0x1a0
[ 235.872771][ T5987] ? vscnprintf+0x80/0x80
[ 235.877146][ T5987] gfs2_fill_super+0x128d/0x1f50
[ 235.882116][ T5987] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.887165][ T5987] ? preempt_count_add+0x8d/0x190
[ 235.892309][ T5987] ? sb_set_blocksize+0xa5/0xe0
[ 235.897183][ T5987] get_tree_bdev+0x3f1/0x610
[ 235.901971][ T5987] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.907012][ T5987] gfs2_get_tree+0x4d/0x1e0
[ 235.911661][ T5987] vfs_get_tree+0x88/0x270
[ 235.916137][ T5987] do_new_mount+0x24a/0xa40
[ 235.920659][ T5987] __se_sys_mount+0x2d6/0x3c0
[ 235.925442][ T5987] ? __x64_sys_mount+0xc0/0xc0
[ 235.930274][ T5987] ? lockdep_hardirqs_on+0x94/0x140
[ 235.935589][ T5987] ? __x64_sys_mount+0x1c/0xc0
[ 235.940390][ T5987] do_syscall_64+0x4c/0xa0
[ 235.944813][ T5987] ? clear_bhb_loop+0x30/0x80
[ 235.949512][ T5987] ? clear_bhb_loop+0x30/0x80
[ 235.954298][ T5987] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 235.960500][ T5987] RIP: 0033:0x7f17c050238a
[ 235.964938][ T5987] 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
[ 235.984910][ T5987] RSP: 002b:00007f17bfb6fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.993361][ T5987] RAX: ffffffffffffffda RBX: 00007f17bfb6fef0 RCX: 00007f17c050238a
[ 236.001535][ T5987] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f17bfb6feb0
[ 236.009518][ T5987] RBP: 0000200000000400 R08: 00007f17bfb6fef0 R09: 0000000000000000
[ 236.017508][ T5987] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 236.025495][ T5987] R13: 00007f17bfb6feb0 R14: 00000000000125ed R15: 0000200000000640
[ 236.033635][ T5987]
[ 236.299740][ T6001] loop0: detected capacity change from 0 to 32768
[ 236.539489][ T5987] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 236.583828][ T6001] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 236.591518][ T6001] CPU: 0 PID: 6001 Comm: syz.0.386 Not tainted syzkaller #0
[ 236.599115][ T6001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 236.609359][ T6001] Call Trace:
[ 236.612727][ T6001]
[ 236.614689][ T6003] loop1: detected capacity change from 0 to 32768
[ 236.615654][ T6001] dump_stack_lvl+0x168/0x230
[ 236.626908][ T6001] ? show_regs_print_info+0x20/0x20
[ 236.632126][ T6001] ? load_image+0x3b0/0x3b0
[ 236.636656][ T6001] sysfs_create_dir_ns+0x252/0x280
[ 236.641791][ T6001] ? __lock_acquire+0x7c60/0x7c60
[ 236.647104][ T6001] ? sysfs_warn_dup+0xa0/0xa0
[ 236.651813][ T6001] ? do_raw_spin_unlock+0x11d/0x230
[ 236.657108][ T6001] kobject_add_internal+0x662/0xd00
[ 236.662398][ T6001] kobject_init_and_add+0x122/0x190
[ 236.667682][ T6001] ? lockdep_softirqs_off+0x420/0x420
[ 236.673140][ T6001] ? kobject_add+0x210/0x210
[ 236.677720][ T6001] ? __init_swait_queue_head+0xa5/0x150
[ 236.683348][ T6001] gfs2_sys_fs_add+0x234/0x480
[ 236.688184][ T6001] ? gfs2_recover_set+0x240/0x240
[ 236.693222][ T6001] ? snprintf+0xd7/0x120
[ 236.697572][ T6001] ? __free_pages+0x95/0x1a0
[ 236.702181][ T6001] ? vscnprintf+0x80/0x80
[ 236.706543][ T6001] gfs2_fill_super+0x128d/0x1f50
[ 236.712226][ T6001] ? gfs2_reconfigure+0xcd0/0xcd0
[ 236.717368][ T6001] ? preempt_count_add+0x8d/0x190
[ 236.722406][ T6001] ? sb_set_blocksize+0xa5/0xe0
[ 236.727381][ T6001] get_tree_bdev+0x3f1/0x610
[ 236.731972][ T6001] ? gfs2_reconfigure+0xcd0/0xcd0
[ 236.737252][ T6001] gfs2_get_tree+0x4d/0x1e0
[ 236.741855][ T6001] vfs_get_tree+0x88/0x270
[ 236.746263][ T6001] do_new_mount+0x24a/0xa40
[ 236.750759][ T6001] __se_sys_mount+0x2d6/0x3c0
[ 236.755605][ T6001] ? __x64_sys_mount+0xc0/0xc0
[ 236.760354][ T6001] ? lockdep_hardirqs_on+0x94/0x140
[ 236.765736][ T6001] ? __x64_sys_mount+0x1c/0xc0
[ 236.770594][ T6001] do_syscall_64+0x4c/0xa0
[ 236.775029][ T6001] ? clear_bhb_loop+0x30/0x80
[ 236.779891][ T6001] ? clear_bhb_loop+0x30/0x80
[ 236.784578][ T6001] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 236.790976][ T6001] RIP: 0033:0x7f454a19a38a
[ 236.795490][ T6001] 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
[ 236.815308][ T6001] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 236.823731][ T6001] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 236.831691][ T6001] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 236.839645][ T6001] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 236.847701][ T6001] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 236.855656][ T6001] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 236.863632][ T6001]
[ 236.866764][ T6001] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 236.879996][ T6001] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 236.904857][ T6003] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 236.912258][ T6003] CPU: 1 PID: 6003 Comm: syz.1.388 Not tainted syzkaller #0
[ 236.919578][ T6003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 236.930033][ T6003] Call Trace:
[ 236.933331][ T6003]
[ 236.936268][ T6003] dump_stack_lvl+0x168/0x230
[ 236.941135][ T6003] ? show_regs_print_info+0x20/0x20
[ 236.946345][ T6003] ? load_image+0x3b0/0x3b0
[ 236.951003][ T6003] sysfs_create_dir_ns+0x252/0x280
[ 236.956133][ T6003] ? __lock_acquire+0x7c60/0x7c60
[ 236.961212][ T6003] ? sysfs_warn_dup+0xa0/0xa0
[ 236.964116][ T5987] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 236.966162][ T6003] ? do_raw_spin_unlock+0x11d/0x230
[ 236.966190][ T6003] kobject_add_internal+0x662/0xd00
[ 236.983219][ T6003] kobject_init_and_add+0x122/0x190
[ 236.988571][ T6003] ? lockdep_softirqs_off+0x420/0x420
[ 236.993976][ T6003] ? kobject_add+0x210/0x210
[ 236.998606][ T6003] ? __init_swait_queue_head+0xa5/0x150
[ 237.004231][ T6003] gfs2_sys_fs_add+0x234/0x480
[ 237.009364][ T6003] ? gfs2_recover_set+0x240/0x240
[ 237.014483][ T6003] ? snprintf+0xd7/0x120
[ 237.018742][ T6003] ? __free_pages+0x95/0x1a0
[ 237.023526][ T6003] ? vscnprintf+0x80/0x80
[ 237.028254][ T6003] gfs2_fill_super+0x128d/0x1f50
[ 237.033271][ T6003] ? gfs2_reconfigure+0xcd0/0xcd0
[ 237.038325][ T6003] ? preempt_count_add+0x8d/0x190
[ 237.043378][ T6003] ? sb_set_blocksize+0xa5/0xe0
[ 237.048247][ T6003] get_tree_bdev+0x3f1/0x610
[ 237.052856][ T6003] ? gfs2_reconfigure+0xcd0/0xcd0
[ 237.057896][ T6003] gfs2_get_tree+0x4d/0x1e0
[ 237.062505][ T6003] vfs_get_tree+0x88/0x270
[ 237.067031][ T6003] do_new_mount+0x24a/0xa40
[ 237.071557][ T6003] __se_sys_mount+0x2d6/0x3c0
[ 237.076261][ T6003] ? __x64_sys_mount+0xc0/0xc0
[ 237.081042][ T6003] ? lockdep_hardirqs_on+0x94/0x140
[ 237.086251][ T6003] ? __x64_sys_mount+0x1c/0xc0
[ 237.091130][ T6003] do_syscall_64+0x4c/0xa0
[ 237.095647][ T6003] ? clear_bhb_loop+0x30/0x80
[ 237.100438][ T6003] ? clear_bhb_loop+0x30/0x80
[ 237.105125][ T6003] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 237.111464][ T6003] RIP: 0033:0x7f9ea399238a
[ 237.115976][ T6003] 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
[ 237.136526][ T6003] RSP: 002b:00007f9ea2fffe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 237.144957][ T6003] RAX: ffffffffffffffda RBX: 00007f9ea2fffef0 RCX: 00007f9ea399238a
[ 237.152969][ T6003] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fffeb0
[ 237.161035][ T6003] RBP: 0000200000000400 R08: 00007f9ea2fffef0 R09: 0000000000000000
[ 237.169095][ T6003] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 237.177167][ T6003] R13: 00007f9ea2fffeb0 R14: 00000000000125ed R15: 0000200000000640
[ 237.185162][ T6003]
[ 237.188328][ T6003] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 237.201771][ T6003] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 237.448012][ T5997] loop4: detected capacity change from 0 to 32768
[ 237.459278][ T5997] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 237.540298][ T6007] loop0: detected capacity change from 0 to 32768
[ 237.548406][ T5997] CPU: 1 PID: 5997 Comm: syz.4.385 Not tainted syzkaller #0
[ 237.555919][ T5997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 237.566122][ T5997] Call Trace:
[ 237.569426][ T5997]
[ 237.572673][ T5997] dump_stack_lvl+0x168/0x230
[ 237.577387][ T5997] ? show_regs_print_info+0x20/0x20
[ 237.582606][ T5997] ? load_image+0x3b0/0x3b0
[ 237.587139][ T5997] sysfs_create_dir_ns+0x252/0x280
[ 237.592358][ T5997] ? __lock_acquire+0x7c60/0x7c60
[ 237.597631][ T5997] ? sysfs_warn_dup+0xa0/0xa0
[ 237.602426][ T5997] ? do_raw_spin_unlock+0x11d/0x230
[ 237.607838][ T5997] kobject_add_internal+0x662/0xd00
[ 237.613250][ T5997] kobject_init_and_add+0x122/0x190
[ 237.618561][ T5997] ? lockdep_softirqs_off+0x420/0x420
[ 237.623964][ T5997] ? kobject_add+0x210/0x210
[ 237.628777][ T5997] ? __init_swait_queue_head+0xa5/0x150
[ 237.634605][ T5997] gfs2_sys_fs_add+0x234/0x480
[ 237.639573][ T5997] ? gfs2_recover_set+0x240/0x240
[ 237.644845][ T5997] ? snprintf+0xd7/0x120
[ 237.649110][ T5997] ? __free_pages+0x95/0x1a0
[ 237.653810][ T5997] ? vscnprintf+0x80/0x80
[ 237.658338][ T5997] gfs2_fill_super+0x128d/0x1f50
[ 237.663565][ T5997] ? gfs2_reconfigure+0xcd0/0xcd0
[ 237.668600][ T5997] ? preempt_count_add+0x8d/0x190
[ 237.673646][ T5997] ? sb_set_blocksize+0xa5/0xe0
[ 237.678492][ T5997] get_tree_bdev+0x3f1/0x610
[ 237.683198][ T5997] ? gfs2_reconfigure+0xcd0/0xcd0
[ 237.688327][ T5997] gfs2_get_tree+0x4d/0x1e0
[ 237.692845][ T5997] vfs_get_tree+0x88/0x270
[ 237.697372][ T5997] do_new_mount+0x24a/0xa40
[ 237.701898][ T5997] __se_sys_mount+0x2d6/0x3c0
[ 237.706616][ T5997] ? __x64_sys_mount+0xc0/0xc0
[ 237.711395][ T5997] ? lockdep_hardirqs_on+0x94/0x140
[ 237.716601][ T5997] ? __x64_sys_mount+0x1c/0xc0
[ 237.721403][ T5997] do_syscall_64+0x4c/0xa0
[ 237.725933][ T5997] ? clear_bhb_loop+0x30/0x80
[ 237.730795][ T5997] ? clear_bhb_loop+0x30/0x80
[ 237.735665][ T5997] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 237.741575][ T5997] RIP: 0033:0x7f000dda438a
[ 237.746101][ T5997] 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
[ 237.765808][ T5997] RSP: 002b:00007f000d3f0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 237.774652][ T5997] RAX: ffffffffffffffda RBX: 00007f000d3f0ef0 RCX: 00007f000dda438a
[ 237.783189][ T5997] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d3f0eb0
[ 237.791769][ T5997] RBP: 0000200000000400 R08: 00007f000d3f0ef0 R09: 0000000000000000
[ 237.799754][ T5997] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 237.808006][ T5997] R13: 00007f000d3f0eb0 R14: 00000000000125ed R15: 0000200000000640
[ 237.815968][ T6009] loop5: detected capacity change from 0 to 32768
[ 237.816198][ T5997]
[ 237.837126][ T5997] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 237.850646][ T5997] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 237.917679][ T6007] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 237.921964][ T6009] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 237.925308][ T6007] CPU: 1 PID: 6007 Comm: syz.0.389 Not tainted syzkaller #0
[ 237.940209][ T6007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 237.950353][ T6007] Call Trace:
[ 237.953627][ T6007]
[ 237.956636][ T6007] dump_stack_lvl+0x168/0x230
[ 237.961647][ T6007] ? show_regs_print_info+0x20/0x20
[ 237.966947][ T6007] ? load_image+0x3b0/0x3b0
[ 237.971536][ T6007] sysfs_create_dir_ns+0x252/0x280
[ 237.976868][ T6007] ? __lock_acquire+0x7c60/0x7c60
[ 237.981907][ T6007] ? sysfs_warn_dup+0xa0/0xa0
[ 237.986955][ T6007] ? do_raw_spin_unlock+0x11d/0x230
[ 237.992152][ T6007] kobject_add_internal+0x662/0xd00
[ 237.997369][ T6007] kobject_init_and_add+0x122/0x190
[ 238.002638][ T6007] ? lockdep_softirqs_off+0x420/0x420
[ 238.008116][ T6007] ? kobject_add+0x210/0x210
[ 238.012788][ T6007] ? __init_swait_queue_head+0xa5/0x150
[ 238.018497][ T6007] gfs2_sys_fs_add+0x234/0x480
[ 238.023252][ T6007] ? gfs2_recover_set+0x240/0x240
[ 238.028279][ T6007] ? snprintf+0xd7/0x120
[ 238.032604][ T6007] ? __free_pages+0x95/0x1a0
[ 238.037182][ T6007] ? vscnprintf+0x80/0x80
[ 238.041520][ T6007] gfs2_fill_super+0x128d/0x1f50
[ 238.046491][ T6007] ? gfs2_reconfigure+0xcd0/0xcd0
[ 238.051608][ T6007] ? preempt_count_add+0x8d/0x190
[ 238.056642][ T6007] ? sb_set_blocksize+0xa5/0xe0
[ 238.061784][ T6007] get_tree_bdev+0x3f1/0x610
[ 238.066376][ T6007] ? gfs2_reconfigure+0xcd0/0xcd0
[ 238.071401][ T6007] gfs2_get_tree+0x4d/0x1e0
[ 238.075898][ T6007] vfs_get_tree+0x88/0x270
[ 238.080343][ T6007] do_new_mount+0x24a/0xa40
[ 238.084875][ T6007] __se_sys_mount+0x2d6/0x3c0
[ 238.089548][ T6007] ? __x64_sys_mount+0xc0/0xc0
[ 238.094407][ T6007] ? lockdep_hardirqs_on+0x94/0x140
[ 238.100120][ T6007] ? __x64_sys_mount+0x1c/0xc0
[ 238.104962][ T6007] do_syscall_64+0x4c/0xa0
[ 238.109366][ T6007] ? clear_bhb_loop+0x30/0x80
[ 238.114050][ T6007] ? clear_bhb_loop+0x30/0x80
[ 238.118849][ T6007] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.124748][ T6007] RIP: 0033:0x7f454a19a38a
[ 238.129245][ T6007] 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
[ 238.149222][ T6007] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.157640][ T6007] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 238.165892][ T6007] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 238.173968][ T6007] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 238.182028][ T6007] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 238.190088][ T6007] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 238.198163][ T6007]
[ 238.201175][ T6009] CPU: 0 PID: 6009 Comm: syz.5.390 Not tainted syzkaller #0
[ 238.202029][ T6007] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.208466][ T6009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 238.208485][ T6009] Call Trace:
[ 238.208492][ T6009]
[ 238.208499][ T6009] dump_stack_lvl+0x168/0x230
[ 238.222601][ T6007] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.232989][ T6009] ? show_regs_print_info+0x20/0x20
[ 238.233030][ T6009] ? load_image+0x3b0/0x3b0
[ 238.233055][ T6009] sysfs_create_dir_ns+0x252/0x280
2025/09/25 23:54:04 executed programs: 386
[ 238.233074][ T6009] ? __lock_acquire+0x7c60/0x7c60
[ 238.270304][ T6009] ? sysfs_warn_dup+0xa0/0xa0
[ 238.275016][ T6009] ? do_raw_spin_unlock+0x11d/0x230
[ 238.280434][ T6009] kobject_add_internal+0x662/0xd00
[ 238.285661][ T6009] kobject_init_and_add+0x122/0x190
[ 238.290995][ T6009] ? lockdep_softirqs_off+0x420/0x420
[ 238.296394][ T6009] ? kobject_add+0x210/0x210
[ 238.301055][ T6009] ? __init_swait_queue_head+0xa5/0x150
[ 238.306887][ T6009] gfs2_sys_fs_add+0x234/0x480
[ 238.312205][ T6009] ? gfs2_recover_set+0x240/0x240
[ 238.317313][ T6009] ? snprintf+0xd7/0x120
[ 238.321591][ T6009] ? __free_pages+0x95/0x1a0
[ 238.326200][ T6009] ? vscnprintf+0x80/0x80
[ 238.330562][ T6009] gfs2_fill_super+0x128d/0x1f50
[ 238.335719][ T6009] ? gfs2_reconfigure+0xcd0/0xcd0
[ 238.340802][ T6009] ? preempt_count_add+0x8d/0x190
[ 238.345859][ T6009] ? sb_set_blocksize+0xa5/0xe0
[ 238.350956][ T6009] get_tree_bdev+0x3f1/0x610
[ 238.355571][ T6009] ? gfs2_reconfigure+0xcd0/0xcd0
[ 238.360612][ T6009] gfs2_get_tree+0x4d/0x1e0
[ 238.365229][ T6009] vfs_get_tree+0x88/0x270
[ 238.369823][ T6009] do_new_mount+0x24a/0xa40
[ 238.374355][ T6009] __se_sys_mount+0x2d6/0x3c0
[ 238.379054][ T6009] ? __x64_sys_mount+0xc0/0xc0
[ 238.383961][ T6009] ? lockdep_hardirqs_on+0x94/0x140
[ 238.389174][ T6009] ? __x64_sys_mount+0x1c/0xc0
[ 238.393962][ T6009] do_syscall_64+0x4c/0xa0
[ 238.398413][ T6009] ? clear_bhb_loop+0x30/0x80
[ 238.403136][ T6009] ? clear_bhb_loop+0x30/0x80
[ 238.407842][ T6009] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.413754][ T6009] RIP: 0033:0x7eff7626138a
[ 238.418263][ T6009] 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
[ 238.438136][ T6009] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.446631][ T6009] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 238.454678][ T6009] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 238.462906][ T6009] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 238.470866][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 238.478828][ T6009] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 238.486981][ T6009]
[ 238.490880][ T6009] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.504576][ T6009] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.908887][ T6017] loop4: detected capacity change from 0 to 32768
[ 239.056375][ T6019] loop0: detected capacity change from 0 to 32768
[ 239.146646][ T6017] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 239.154272][ T6017] CPU: 0 PID: 6017 Comm: syz.4.394 Not tainted syzkaller #0
[ 239.161562][ T6017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 239.171634][ T6017] Call Trace:
[ 239.174925][ T6017]
[ 239.177953][ T6017] dump_stack_lvl+0x168/0x230
[ 239.182920][ T6017] ? show_regs_print_info+0x20/0x20
[ 239.188138][ T6017] ? load_image+0x3b0/0x3b0
[ 239.192667][ T6017] sysfs_create_dir_ns+0x252/0x280
[ 239.197882][ T6017] ? __lock_acquire+0x7c60/0x7c60
[ 239.202945][ T6017] ? sysfs_warn_dup+0xa0/0xa0
[ 239.207662][ T6017] ? do_raw_spin_unlock+0x11d/0x230
[ 239.212884][ T6017] kobject_add_internal+0x662/0xd00
[ 239.218113][ T6017] kobject_init_and_add+0x122/0x190
[ 239.223358][ T6017] ? lockdep_softirqs_off+0x420/0x420
[ 239.228767][ T6017] ? kobject_add+0x210/0x210
[ 239.233468][ T6017] ? __init_swait_queue_head+0xa5/0x150
[ 239.239026][ T6017] gfs2_sys_fs_add+0x234/0x480
[ 239.243887][ T6017] ? gfs2_recover_set+0x240/0x240
[ 239.248923][ T6017] ? snprintf+0xd7/0x120
[ 239.253256][ T6017] ? __free_pages+0x95/0x1a0
[ 239.257853][ T6017] ? vscnprintf+0x80/0x80
[ 239.262250][ T6017] gfs2_fill_super+0x128d/0x1f50
[ 239.267257][ T6017] ? gfs2_reconfigure+0xcd0/0xcd0
[ 239.272298][ T6017] ? preempt_count_add+0x8d/0x190
[ 239.277341][ T6017] ? sb_set_blocksize+0xa5/0xe0
[ 239.282293][ T6017] get_tree_bdev+0x3f1/0x610
[ 239.286980][ T6017] ? gfs2_reconfigure+0xcd0/0xcd0
[ 239.292143][ T6017] gfs2_get_tree+0x4d/0x1e0
[ 239.296960][ T6017] vfs_get_tree+0x88/0x270
[ 239.298564][ T6021] loop5: detected capacity change from 0 to 32768
[ 239.301426][ T6017] do_new_mount+0x24a/0xa40
[ 239.312430][ T6017] __se_sys_mount+0x2d6/0x3c0
[ 239.317127][ T6017] ? __x64_sys_mount+0xc0/0xc0
[ 239.322087][ T6017] ? lockdep_hardirqs_on+0x94/0x140
[ 239.327398][ T6017] ? __x64_sys_mount+0x1c/0xc0
[ 239.332441][ T6017] do_syscall_64+0x4c/0xa0
[ 239.337038][ T6017] ? clear_bhb_loop+0x30/0x80
[ 239.341732][ T6017] ? clear_bhb_loop+0x30/0x80
[ 239.346624][ T6017] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 239.352624][ T6017] RIP: 0033:0x7f000dda438a
[ 239.357058][ T6017] 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
[ 239.376840][ T6017] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 239.385357][ T6017] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 239.393598][ T6017] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 239.401588][ T6017] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 239.409668][ T6017] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 239.417832][ T6017] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 239.426013][ T6017]
[ 239.430136][ T6017] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 239.443646][ T6017] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 239.457639][ T6019] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 239.465339][ T6019] CPU: 0 PID: 6019 Comm: syz.0.395 Not tainted syzkaller #0
[ 239.472635][ T6019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 239.482795][ T6019] Call Trace:
[ 239.486225][ T6019]
[ 239.489257][ T6019] dump_stack_lvl+0x168/0x230
[ 239.494227][ T6019] ? show_regs_print_info+0x20/0x20
[ 239.499448][ T6019] ? load_image+0x3b0/0x3b0
[ 239.503983][ T6019] sysfs_create_dir_ns+0x252/0x280
[ 239.509247][ T6019] ? __lock_acquire+0x7c60/0x7c60
[ 239.514771][ T6019] ? sysfs_warn_dup+0xa0/0xa0
[ 239.519470][ T6019] ? do_raw_spin_unlock+0x11d/0x230
[ 239.524688][ T6019] kobject_add_internal+0x662/0xd00
[ 239.530004][ T6019] kobject_init_and_add+0x122/0x190
[ 239.535542][ T6019] ? lockdep_softirqs_off+0x420/0x420
[ 239.541289][ T6019] ? kobject_add+0x210/0x210
[ 239.546595][ T6019] ? __init_swait_queue_head+0xa5/0x150
[ 239.552171][ T6019] gfs2_sys_fs_add+0x234/0x480
[ 239.556957][ T6019] ? gfs2_recover_set+0x240/0x240
[ 239.561993][ T6019] ? snprintf+0xd7/0x120
[ 239.566446][ T6019] ? __free_pages+0x95/0x1a0
[ 239.571051][ T6019] ? vscnprintf+0x80/0x80
[ 239.575424][ T6019] gfs2_fill_super+0x128d/0x1f50
[ 239.580404][ T6019] ? gfs2_reconfigure+0xcd0/0xcd0
[ 239.585539][ T6019] ? preempt_count_add+0x8d/0x190
[ 239.590602][ T6019] ? sb_set_blocksize+0xa5/0xe0
[ 239.595544][ T6019] get_tree_bdev+0x3f1/0x610
[ 239.600254][ T6019] ? gfs2_reconfigure+0xcd0/0xcd0
[ 239.605413][ T6019] gfs2_get_tree+0x4d/0x1e0
[ 239.610143][ T6019] vfs_get_tree+0x88/0x270
[ 239.614586][ T6019] do_new_mount+0x24a/0xa40
[ 239.619109][ T6019] __se_sys_mount+0x2d6/0x3c0
[ 239.623997][ T6019] ? __x64_sys_mount+0xc0/0xc0
[ 239.628781][ T6019] ? lockdep_hardirqs_on+0x94/0x140
[ 239.634096][ T6019] ? __x64_sys_mount+0x1c/0xc0
[ 239.638884][ T6019] do_syscall_64+0x4c/0xa0
[ 239.643418][ T6019] ? clear_bhb_loop+0x30/0x80
[ 239.648250][ T6019] ? clear_bhb_loop+0x30/0x80
[ 239.653432][ T6019] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 239.659432][ T6019] RIP: 0033:0x7f454a19a38a
[ 239.663946][ T6019] 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
[ 239.683661][ T6019] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 239.692372][ T6019] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 239.700557][ T6019] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 239.708923][ T6019] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 239.717196][ T6019] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 239.725361][ T6019] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 239.733360][ T6019]
[ 239.737314][ T6019] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 239.750768][ T6019] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 239.758285][ T6021] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 239.766025][ T6021] CPU: 1 PID: 6021 Comm: syz.5.396 Not tainted syzkaller #0
[ 239.773864][ T6021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 239.784113][ T6021] Call Trace:
[ 239.787848][ T6021]
[ 239.790787][ T6021] dump_stack_lvl+0x168/0x230
[ 239.795484][ T6021] ? show_regs_print_info+0x20/0x20
[ 239.800717][ T6021] ? load_image+0x3b0/0x3b0
[ 239.805433][ T6021] sysfs_create_dir_ns+0x252/0x280
[ 239.810652][ T6021] ? __lock_acquire+0x7c60/0x7c60
[ 239.815689][ T6021] ? sysfs_warn_dup+0xa0/0xa0
[ 239.820472][ T6021] ? do_raw_spin_unlock+0x11d/0x230
[ 239.825685][ T6021] kobject_add_internal+0x662/0xd00
[ 239.830906][ T6021] kobject_init_and_add+0x122/0x190
[ 239.836215][ T6021] ? lockdep_softirqs_off+0x420/0x420
[ 239.841883][ T6021] ? kobject_add+0x210/0x210
[ 239.846689][ T6021] ? __init_swait_queue_head+0xa5/0x150
[ 239.852521][ T6021] gfs2_sys_fs_add+0x234/0x480
[ 239.857931][ T6021] ? gfs2_recover_set+0x240/0x240
[ 239.863120][ T6021] ? snprintf+0xd7/0x120
[ 239.867377][ T6021] ? __free_pages+0x95/0x1a0
[ 239.871957][ T6014] loop1: detected capacity change from 0 to 32768
[ 239.871980][ T6021] ? vscnprintf+0x80/0x80
[ 239.882889][ T6021] gfs2_fill_super+0x128d/0x1f50
[ 239.888235][ T6021] ? gfs2_reconfigure+0xcd0/0xcd0
[ 239.893299][ T6021] ? preempt_count_add+0x8d/0x190
[ 239.898448][ T6021] ? sb_set_blocksize+0xa5/0xe0
[ 239.903321][ T6021] get_tree_bdev+0x3f1/0x610
[ 239.907932][ T6021] ? gfs2_reconfigure+0xcd0/0xcd0
[ 239.910939][ T6011] loop3: detected capacity change from 0 to 32768
[ 239.912972][ T6021] gfs2_get_tree+0x4d/0x1e0
[ 239.924358][ T6021] vfs_get_tree+0x88/0x270
[ 239.928966][ T6021] do_new_mount+0x24a/0xa40
[ 239.933845][ T6021] __se_sys_mount+0x2d6/0x3c0
[ 239.938545][ T6021] ? __x64_sys_mount+0xc0/0xc0
[ 239.944039][ T6021] ? lockdep_hardirqs_on+0x94/0x140
[ 239.949427][ T6021] ? __x64_sys_mount+0x1c/0xc0
[ 239.954383][ T6021] do_syscall_64+0x4c/0xa0
[ 239.958993][ T6021] ? clear_bhb_loop+0x30/0x80
[ 239.964038][ T6021] ? clear_bhb_loop+0x30/0x80
[ 239.969037][ T6021] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 239.975090][ T6021] RIP: 0033:0x7eff7626138a
[ 239.979616][ T6021] 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
[ 239.999652][ T6021] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.008323][ T6021] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 240.016626][ T6021] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 240.024599][ T6021] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 240.032669][ T6021] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 240.040630][ T6021] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 240.048597][ T6021]
[ 240.051713][ T6021] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.065246][ T6021] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 240.105855][ T6011] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.114390][ T6014] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.121797][ T6014] CPU: 0 PID: 6014 Comm: syz.1.393 Not tainted syzkaller #0
[ 240.129237][ T6014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 240.139478][ T6014] Call Trace:
[ 240.142765][ T6014]
[ 240.145707][ T6014] dump_stack_lvl+0x168/0x230
[ 240.150405][ T6014] ? show_regs_print_info+0x20/0x20
[ 240.155631][ T6014] ? load_image+0x3b0/0x3b0
[ 240.160164][ T6014] sysfs_create_dir_ns+0x252/0x280
[ 240.165497][ T6014] ? __lock_acquire+0x7c60/0x7c60
[ 240.170525][ T6014] ? sysfs_warn_dup+0xa0/0xa0
[ 240.175291][ T6014] ? do_raw_spin_unlock+0x11d/0x230
[ 240.180778][ T6014] kobject_add_internal+0x662/0xd00
[ 240.186302][ T6014] kobject_init_and_add+0x122/0x190
[ 240.191546][ T6014] ? lockdep_softirqs_off+0x420/0x420
[ 240.196948][ T6014] ? kobject_add+0x210/0x210
[ 240.201575][ T6014] ? __init_swait_queue_head+0xa5/0x150
[ 240.207232][ T6014] gfs2_sys_fs_add+0x234/0x480
[ 240.212299][ T6014] ? gfs2_recover_set+0x240/0x240
[ 240.217514][ T6014] ? snprintf+0xd7/0x120
[ 240.221861][ T6014] ? __free_pages+0x95/0x1a0
[ 240.226501][ T6014] ? vscnprintf+0x80/0x80
[ 240.230851][ T6014] gfs2_fill_super+0x128d/0x1f50
[ 240.235904][ T6014] ? gfs2_reconfigure+0xcd0/0xcd0
[ 240.240950][ T6014] ? preempt_count_add+0x8d/0x190
[ 240.246125][ T6014] ? sb_set_blocksize+0xa5/0xe0
[ 240.251079][ T6014] get_tree_bdev+0x3f1/0x610
[ 240.255694][ T6014] ? gfs2_reconfigure+0xcd0/0xcd0
[ 240.260733][ T6014] gfs2_get_tree+0x4d/0x1e0
[ 240.265255][ T6014] vfs_get_tree+0x88/0x270
[ 240.269703][ T6014] do_new_mount+0x24a/0xa40
[ 240.274231][ T6014] __se_sys_mount+0x2d6/0x3c0
[ 240.278920][ T6014] ? __x64_sys_mount+0xc0/0xc0
[ 240.283690][ T6014] ? lockdep_hardirqs_on+0x94/0x140
[ 240.288896][ T6014] ? __x64_sys_mount+0x1c/0xc0
[ 240.293657][ T6014] do_syscall_64+0x4c/0xa0
[ 240.298221][ T6014] ? clear_bhb_loop+0x30/0x80
[ 240.303216][ T6014] ? clear_bhb_loop+0x30/0x80
[ 240.307914][ T6014] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 240.313917][ T6014] RIP: 0033:0x7f9ea399238a
[ 240.318349][ T6014] 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
[ 240.338329][ T6014] RSP: 002b:00007f9ea2fffe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.346888][ T6014] RAX: ffffffffffffffda RBX: 00007f9ea2fffef0 RCX: 00007f9ea399238a
[ 240.355258][ T6014] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fffeb0
[ 240.363666][ T6014] RBP: 0000200000000400 R08: 00007f9ea2fffef0 R09: 0000000000000000
[ 240.371838][ T6014] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 240.379822][ T6014] R13: 00007f9ea2fffeb0 R14: 00000000000125ed R15: 0000200000000640
[ 240.387807][ T6014]
[ 240.520438][ T6011] CPU: 1 PID: 6011 Comm: syz.3.392 Not tainted syzkaller #0
[ 240.528199][ T6011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 240.538485][ T6011] Call Trace:
[ 240.541905][ T6011]
[ 240.544932][ T6011] dump_stack_lvl+0x168/0x230
[ 240.549716][ T6011] ? show_regs_print_info+0x20/0x20
[ 240.555026][ T6011] ? load_image+0x3b0/0x3b0
[ 240.559558][ T6011] sysfs_create_dir_ns+0x252/0x280
[ 240.564787][ T6011] ? __lock_acquire+0x7c60/0x7c60
[ 240.569840][ T6011] ? sysfs_warn_dup+0xa0/0xa0
[ 240.574538][ T6011] ? do_raw_spin_unlock+0x11d/0x230
[ 240.579762][ T6011] kobject_add_internal+0x662/0xd00
[ 240.585102][ T6011] kobject_init_and_add+0x122/0x190
[ 240.590318][ T6011] ? lockdep_softirqs_off+0x420/0x420
[ 240.595714][ T6011] ? kobject_add+0x210/0x210
[ 240.600333][ T6011] ? __init_swait_queue_head+0xa5/0x150
[ 240.606165][ T6011] gfs2_sys_fs_add+0x234/0x480
[ 240.610958][ T6011] ? gfs2_recover_set+0x240/0x240
[ 240.616096][ T6011] ? snprintf+0xd7/0x120
[ 240.620474][ T6011] ? __free_pages+0x95/0x1a0
[ 240.625099][ T6011] ? vscnprintf+0x80/0x80
[ 240.629545][ T6011] gfs2_fill_super+0x128d/0x1f50
[ 240.634510][ T6011] ? gfs2_reconfigure+0xcd0/0xcd0
[ 240.639659][ T6011] ? preempt_count_add+0x8d/0x190
[ 240.644719][ T6011] ? sb_set_blocksize+0xa5/0xe0
[ 240.649703][ T6011] get_tree_bdev+0x3f1/0x610
[ 240.654325][ T6011] ? gfs2_reconfigure+0xcd0/0xcd0
[ 240.659373][ T6011] gfs2_get_tree+0x4d/0x1e0
[ 240.664070][ T6011] vfs_get_tree+0x88/0x270
[ 240.668685][ T6011] do_new_mount+0x24a/0xa40
[ 240.673568][ T6011] __se_sys_mount+0x2d6/0x3c0
[ 240.678264][ T6011] ? __x64_sys_mount+0xc0/0xc0
[ 240.683140][ T6011] ? lockdep_hardirqs_on+0x94/0x140
[ 240.688337][ T6011] ? __x64_sys_mount+0x1c/0xc0
[ 240.693332][ T6011] do_syscall_64+0x4c/0xa0
[ 240.697837][ T6011] ? clear_bhb_loop+0x30/0x80
[ 240.702597][ T6011] ? clear_bhb_loop+0x30/0x80
[ 240.707288][ T6011] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 240.713292][ T6011] RIP: 0033:0x7f17c050238a
[ 240.717967][ T6011] 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
[ 240.737946][ T6011] RSP: 002b:00007f17bfb6fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.746465][ T6011] RAX: ffffffffffffffda RBX: 00007f17bfb6fef0 RCX: 00007f17c050238a
[ 240.754487][ T6011] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f17bfb6feb0
[ 240.762469][ T6011] RBP: 0000200000000400 R08: 00007f17bfb6fef0 R09: 0000000000000000
[ 240.770449][ T6011] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 240.778604][ T6011] R13: 00007f17bfb6feb0 R14: 00000000000125ed R15: 0000200000000640
[ 240.786611][ T6011]
[ 240.790790][ T6014] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.836757][ T6025] loop5: detected capacity change from 0 to 32768
[ 240.848010][ T6011] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.861399][ T6011] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 241.081210][ T6026] loop0: detected capacity change from 0 to 32768
[ 241.090857][ T6014] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 241.266719][ T6025] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 241.274350][ T6025] CPU: 0 PID: 6025 Comm: syz.5.399 Not tainted syzkaller #0
[ 241.281739][ T6025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 241.291983][ T6025] Call Trace:
[ 241.295436][ T6025]
[ 241.298371][ T6025] dump_stack_lvl+0x168/0x230
[ 241.303283][ T6025] ? show_regs_print_info+0x20/0x20
[ 241.308517][ T6025] ? load_image+0x3b0/0x3b0
[ 241.313562][ T6025] sysfs_create_dir_ns+0x252/0x280
[ 241.318815][ T6025] ? __lock_acquire+0x7c60/0x7c60
[ 241.323900][ T6025] ? sysfs_warn_dup+0xa0/0xa0
[ 241.328615][ T6025] ? do_raw_spin_unlock+0x11d/0x230
[ 241.334050][ T6025] kobject_add_internal+0x662/0xd00
[ 241.339286][ T6025] kobject_init_and_add+0x122/0x190
[ 241.344527][ T6025] ? lockdep_softirqs_off+0x420/0x420
[ 241.349924][ T6025] ? kobject_add+0x210/0x210
[ 241.354527][ T6025] ? __init_swait_queue_head+0xa5/0x150
[ 241.360181][ T6025] gfs2_sys_fs_add+0x234/0x480
[ 241.364987][ T6025] ? gfs2_recover_set+0x240/0x240
[ 241.370076][ T6025] ? snprintf+0xd7/0x120
[ 241.374399][ T6025] ? __free_pages+0x95/0x1a0
[ 241.379153][ T6025] ? vscnprintf+0x80/0x80
[ 241.383616][ T6025] gfs2_fill_super+0x128d/0x1f50
[ 241.388682][ T6025] ? gfs2_reconfigure+0xcd0/0xcd0
[ 241.393805][ T6025] ? preempt_count_add+0x8d/0x190
[ 241.398851][ T6025] ? sb_set_blocksize+0xa5/0xe0
[ 241.403756][ T6025] get_tree_bdev+0x3f1/0x610
[ 241.408364][ T6025] ? gfs2_reconfigure+0xcd0/0xcd0
[ 241.413422][ T6025] gfs2_get_tree+0x4d/0x1e0
[ 241.417942][ T6025] vfs_get_tree+0x88/0x270
[ 241.422382][ T6025] do_new_mount+0x24a/0xa40
[ 241.426913][ T6025] __se_sys_mount+0x2d6/0x3c0
[ 241.431776][ T6025] ? __x64_sys_mount+0xc0/0xc0
[ 241.436716][ T6025] ? lockdep_hardirqs_on+0x94/0x140
[ 241.442013][ T6025] ? __x64_sys_mount+0x1c/0xc0
[ 241.446913][ T6025] do_syscall_64+0x4c/0xa0
[ 241.451351][ T6025] ? clear_bhb_loop+0x30/0x80
[ 241.456045][ T6025] ? clear_bhb_loop+0x30/0x80
[ 241.460735][ T6025] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 241.465577][ T6026] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 241.466638][ T6025] RIP: 0033:0x7eff7626138a
[ 241.478922][ T6025] 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
[ 241.499004][ T6025] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 241.507500][ T6025] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 241.515463][ T6025] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 241.523610][ T6025] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 241.531654][ T6025] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 241.539703][ T6025] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 241.547776][ T6025]
[ 241.550793][ T6026] CPU: 1 PID: 6026 Comm: syz.0.398 Not tainted syzkaller #0
[ 241.551771][ T6025] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 241.558089][ T6026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 241.558103][ T6026] Call Trace:
[ 241.558110][ T6026]
[ 241.558117][ T6026] dump_stack_lvl+0x168/0x230
[ 241.571321][ T6025] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 241.581453][ T6026] ? show_regs_print_info+0x20/0x20
[ 241.581478][ T6026] ? load_image+0x3b0/0x3b0
[ 241.609711][ T6026] sysfs_create_dir_ns+0x252/0x280
[ 241.614958][ T6026] ? __lock_acquire+0x7c60/0x7c60
[ 241.620005][ T6026] ? sysfs_warn_dup+0xa0/0xa0
[ 241.624725][ T6026] ? do_raw_spin_unlock+0x11d/0x230
[ 241.630043][ T6026] kobject_add_internal+0x662/0xd00
[ 241.635806][ T6026] kobject_init_and_add+0x122/0x190
[ 241.641046][ T6026] ? lockdep_softirqs_off+0x420/0x420
[ 241.646496][ T6026] ? kobject_add+0x210/0x210
[ 241.651077][ T6026] ? __init_swait_queue_head+0xa5/0x150
[ 241.656785][ T6026] gfs2_sys_fs_add+0x234/0x480
[ 241.661543][ T6026] ? gfs2_recover_set+0x240/0x240
[ 241.666741][ T6026] ? snprintf+0xd7/0x120
[ 241.671065][ T6026] ? __free_pages+0x95/0x1a0
[ 241.675732][ T6026] ? vscnprintf+0x80/0x80
[ 241.680056][ T6026] gfs2_fill_super+0x128d/0x1f50
[ 241.685050][ T6026] ? gfs2_reconfigure+0xcd0/0xcd0
[ 241.690056][ T6026] ? preempt_count_add+0x8d/0x190
[ 241.695136][ T6026] ? sb_set_blocksize+0xa5/0xe0
[ 241.699987][ T6026] get_tree_bdev+0x3f1/0x610
[ 241.704758][ T6026] ? gfs2_reconfigure+0xcd0/0xcd0
[ 241.709786][ T6026] gfs2_get_tree+0x4d/0x1e0
[ 241.714658][ T6026] vfs_get_tree+0x88/0x270
[ 241.719284][ T6026] do_new_mount+0x24a/0xa40
[ 241.723975][ T6026] __se_sys_mount+0x2d6/0x3c0
[ 241.728648][ T6026] ? __x64_sys_mount+0xc0/0xc0
[ 241.733409][ T6026] ? lockdep_hardirqs_on+0x94/0x140
[ 241.738938][ T6026] ? __x64_sys_mount+0x1c/0xc0
[ 241.743698][ T6026] do_syscall_64+0x4c/0xa0
[ 241.748124][ T6026] ? clear_bhb_loop+0x30/0x80
[ 241.752964][ T6026] ? clear_bhb_loop+0x30/0x80
[ 241.757820][ T6026] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 241.764630][ T6026] RIP: 0033:0x7f454a19a38a
[ 241.769210][ T6026] 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
[ 241.790122][ T6026] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 241.799020][ T6026] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 241.807999][ T6026] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 241.816064][ T6026] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 241.824219][ T6026] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 241.832174][ T6026] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 241.840325][ T6026]
[ 241.844289][ T6026] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 241.859278][ T6026] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 241.878260][ T6029] loop3: detected capacity change from 0 to 32768
[ 242.266171][ T6029] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 242.273811][ T6029] CPU: 0 PID: 6029 Comm: syz.3.400 Not tainted syzkaller #0
[ 242.281115][ T6029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 242.291213][ T6029] Call Trace:
[ 242.294684][ T6029]
[ 242.297737][ T6029] dump_stack_lvl+0x168/0x230
[ 242.302552][ T6029] ? show_regs_print_info+0x20/0x20
[ 242.307775][ T6029] ? load_image+0x3b0/0x3b0
[ 242.312399][ T6029] sysfs_create_dir_ns+0x252/0x280
[ 242.317717][ T6029] ? __lock_acquire+0x7c60/0x7c60
[ 242.322949][ T6029] ? sysfs_warn_dup+0xa0/0xa0
[ 242.327745][ T6029] ? do_raw_spin_unlock+0x11d/0x230
[ 242.332975][ T6029] kobject_add_internal+0x662/0xd00
[ 242.338285][ T6029] kobject_init_and_add+0x122/0x190
[ 242.343515][ T6029] ? lockdep_softirqs_off+0x420/0x420
[ 242.349182][ T6029] ? kobject_add+0x210/0x210
[ 242.353798][ T6029] ? __init_swait_queue_head+0xa5/0x150
[ 242.359360][ T6029] gfs2_sys_fs_add+0x234/0x480
[ 242.364154][ T6029] ? gfs2_recover_set+0x240/0x240
[ 242.369204][ T6029] ? snprintf+0xd7/0x120
[ 242.373470][ T6029] ? __free_pages+0x95/0x1a0
[ 242.378231][ T6029] ? vscnprintf+0x80/0x80
[ 242.382604][ T6029] gfs2_fill_super+0x128d/0x1f50
[ 242.387663][ T6029] ? gfs2_reconfigure+0xcd0/0xcd0
[ 242.392766][ T6029] ? preempt_count_add+0x8d/0x190
[ 242.397815][ T6029] ? sb_set_blocksize+0xa5/0xe0
[ 242.402723][ T6029] get_tree_bdev+0x3f1/0x610
[ 242.407341][ T6029] ? gfs2_reconfigure+0xcd0/0xcd0
[ 242.412383][ T6029] gfs2_get_tree+0x4d/0x1e0
[ 242.416916][ T6029] vfs_get_tree+0x88/0x270
[ 242.421348][ T6029] do_new_mount+0x24a/0xa40
[ 242.425957][ T6029] __se_sys_mount+0x2d6/0x3c0
[ 242.430747][ T6029] ? __x64_sys_mount+0xc0/0xc0
[ 242.435531][ T6029] ? lockdep_hardirqs_on+0x94/0x140
[ 242.440739][ T6029] ? __x64_sys_mount+0x1c/0xc0
[ 242.445521][ T6029] do_syscall_64+0x4c/0xa0
[ 242.449947][ T6029] ? clear_bhb_loop+0x30/0x80
[ 242.454727][ T6029] ? clear_bhb_loop+0x30/0x80
[ 242.459404][ T6029] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 242.465293][ T6029] RIP: 0033:0x7f17c050238a
[ 242.469710][ T6029] 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
[ 242.489862][ T6029] RSP: 002b:00007f17bfb6fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 242.498424][ T6029] RAX: ffffffffffffffda RBX: 00007f17bfb6fef0 RCX: 00007f17c050238a
[ 242.506502][ T6029] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f17bfb6feb0
[ 242.514490][ T6029] RBP: 0000200000000400 R08: 00007f17bfb6fef0 R09: 0000000000000000
[ 242.522568][ T6029] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 242.530553][ T6029] R13: 00007f17bfb6feb0 R14: 00000000000125ed R15: 0000200000000640
[ 242.539001][ T6029]
[ 242.542148][ T6029] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 242.555767][ T6029] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 243.002083][ T6040] loop5: detected capacity change from 0 to 32768
[ 243.056625][ T6040] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.064261][ T6040] CPU: 1 PID: 6040 Comm: syz.5.406 Not tainted syzkaller #0
[ 243.071776][ T6040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 243.082146][ T6040] Call Trace:
[ 243.085438][ T6040]
[ 243.088376][ T6040] dump_stack_lvl+0x168/0x230
[ 243.093102][ T6040] ? show_regs_print_info+0x20/0x20
[ 243.098575][ T6040] ? load_image+0x3b0/0x3b0
[ 243.103154][ T6040] sysfs_create_dir_ns+0x252/0x280
[ 243.108280][ T6040] ? __lock_acquire+0x7c60/0x7c60
[ 243.113518][ T6040] ? sysfs_warn_dup+0xa0/0xa0
[ 243.118386][ T6040] ? do_raw_spin_unlock+0x11d/0x230
[ 243.123680][ T6040] kobject_add_internal+0x662/0xd00
[ 243.129114][ T6040] kobject_init_and_add+0x122/0x190
[ 243.134419][ T6040] ? lockdep_softirqs_off+0x420/0x420
[ 243.139973][ T6040] ? kobject_add+0x210/0x210
[ 243.144744][ T6040] ? __init_swait_queue_head+0xa5/0x150
[ 243.150301][ T6040] gfs2_sys_fs_add+0x234/0x480
[ 243.155071][ T6040] ? gfs2_recover_set+0x240/0x240
[ 243.156391][ T6044] loop3: detected capacity change from 0 to 32768
[ 243.160195][ T6040] ? snprintf+0xd7/0x120
[ 243.170820][ T6040] ? __free_pages+0x95/0x1a0
[ 243.175425][ T6040] ? vscnprintf+0x80/0x80
[ 243.179773][ T6040] gfs2_fill_super+0x128d/0x1f50
[ 243.184821][ T6040] ? gfs2_reconfigure+0xcd0/0xcd0
[ 243.190044][ T6040] ? preempt_count_add+0x8d/0x190
[ 243.195186][ T6040] ? sb_set_blocksize+0xa5/0xe0
[ 243.200266][ T6040] get_tree_bdev+0x3f1/0x610
[ 243.204880][ T6040] ? gfs2_reconfigure+0xcd0/0xcd0
[ 243.210014][ T6040] gfs2_get_tree+0x4d/0x1e0
[ 243.214622][ T6040] vfs_get_tree+0x88/0x270
[ 243.219129][ T6040] do_new_mount+0x24a/0xa40
[ 243.223648][ T6040] __se_sys_mount+0x2d6/0x3c0
[ 243.228430][ T6040] ? __x64_sys_mount+0xc0/0xc0
[ 243.233445][ T6040] ? lockdep_hardirqs_on+0x94/0x140
[ 243.238662][ T6040] ? __x64_sys_mount+0x1c/0xc0
[ 243.243444][ T6040] do_syscall_64+0x4c/0xa0
[ 243.247874][ T6040] ? clear_bhb_loop+0x30/0x80
[ 243.252564][ T6040] ? clear_bhb_loop+0x30/0x80
[ 243.257253][ T6040] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 243.263163][ T6040] RIP: 0033:0x7eff7626138a
[ 243.267686][ T6040] 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
[ 243.287581][ T6040] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 243.296008][ T6040] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 243.304213][ T6040] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 243.312294][ T6040] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 243.320450][ T6040] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 243.328521][ T6040] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 243.336518][ T6040]
[ 243.340771][ T6040] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 243.353946][ T6040] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 243.364715][ T6044] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.372137][ T6044] CPU: 1 PID: 6044 Comm: syz.3.407 Not tainted syzkaller #0
[ 243.379670][ T6044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 243.390573][ T6044] Call Trace:
[ 243.394048][ T6044]
[ 243.397076][ T6044] dump_stack_lvl+0x168/0x230
[ 243.401765][ T6044] ? show_regs_print_info+0x20/0x20
[ 243.406983][ T6044] ? load_image+0x3b0/0x3b0
[ 243.411719][ T6044] sysfs_create_dir_ns+0x252/0x280
[ 243.416947][ T6044] ? __lock_acquire+0x7c60/0x7c60
[ 243.422230][ T6044] ? sysfs_warn_dup+0xa0/0xa0
[ 243.426920][ T6044] ? do_raw_spin_unlock+0x11d/0x230
[ 243.427737][ T6046] loop1: detected capacity change from 0 to 32768
[ 243.432211][ T6044] kobject_add_internal+0x662/0xd00
[ 243.443808][ T6044] kobject_init_and_add+0x122/0x190
[ 243.449034][ T6044] ? lockdep_softirqs_off+0x420/0x420
[ 243.454423][ T6044] ? kobject_add+0x210/0x210
[ 243.459116][ T6044] ? __init_swait_queue_head+0xa5/0x150
[ 243.464682][ T6044] gfs2_sys_fs_add+0x234/0x480
[ 243.469646][ T6044] ? gfs2_recover_set+0x240/0x240
[ 243.474689][ T6044] ? snprintf+0xd7/0x120
[ 243.478948][ T6044] ? __free_pages+0x95/0x1a0
[ 243.483638][ T6044] ? vscnprintf+0x80/0x80
[ 243.487990][ T6044] gfs2_fill_super+0x128d/0x1f50
[ 243.492958][ T6044] ? gfs2_reconfigure+0xcd0/0xcd0
[ 243.498088][ T6044] ? preempt_count_add+0x8d/0x190
[ 243.503136][ T6044] ? sb_set_blocksize+0xa5/0xe0
[ 243.508011][ T6044] get_tree_bdev+0x3f1/0x610
[ 243.512610][ T6044] ? gfs2_reconfigure+0xcd0/0xcd0
[ 243.517649][ T6044] gfs2_get_tree+0x4d/0x1e0
[ 243.522272][ T6044] vfs_get_tree+0x88/0x270
[ 243.526789][ T6044] do_new_mount+0x24a/0xa40
[ 243.531309][ T6044] __se_sys_mount+0x2d6/0x3c0
[ 243.536071][ T6044] ? __x64_sys_mount+0xc0/0xc0
[ 243.541009][ T6044] ? lockdep_hardirqs_on+0x94/0x140
[ 243.546291][ T6044] ? __x64_sys_mount+0x1c/0xc0
[ 243.551273][ T6044] do_syscall_64+0x4c/0xa0
[ 243.555818][ T6044] ? clear_bhb_loop+0x30/0x80
[ 243.560547][ T6044] ? clear_bhb_loop+0x30/0x80
[ 243.565324][ T6044] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 243.571535][ T6044] RIP: 0033:0x7f17c050238a
[ 243.576066][ T6044] 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
[ 243.595864][ T6044] RSP: 002b:00007f17bfb6fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 243.604469][ T6044] RAX: ffffffffffffffda RBX: 00007f17bfb6fef0 RCX: 00007f17c050238a
[ 243.612811][ T6044] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f17bfb6feb0
[ 243.621029][ T6044] RBP: 0000200000000400 R08: 00007f17bfb6fef0 R09: 0000000000000000
[ 243.629054][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 243.637060][ T6044] R13: 00007f17bfb6feb0 R14: 00000000000125ed R15: 0000200000000640
[ 243.645333][ T6044]
[ 243.649666][ T6044] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 243.662833][ T6044] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 243.686342][ T6046] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.688360][ T6043] loop0: detected capacity change from 0 to 32768
[ 243.694464][ T6046] CPU: 1 PID: 6046 Comm: syz.1.404 Not tainted syzkaller #0
[ 243.694486][ T6046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 243.718583][ T6046] Call Trace:
[ 243.721969][ T6046]
[ 243.724900][ T6046] dump_stack_lvl+0x168/0x230
[ 243.729669][ T6046] ? show_regs_print_info+0x20/0x20
[ 243.734881][ T6046] ? load_image+0x3b0/0x3b0
[ 243.739484][ T6046] sysfs_create_dir_ns+0x252/0x280
[ 243.744735][ T6046] ? __lock_acquire+0x7c60/0x7c60
[ 243.749791][ T6046] ? sysfs_warn_dup+0xa0/0xa0
[ 243.754678][ T6046] ? do_raw_spin_unlock+0x11d/0x230
[ 243.759894][ T6046] kobject_add_internal+0x662/0xd00
[ 243.765296][ T6046] kobject_init_and_add+0x122/0x190
[ 243.770862][ T6046] ? lockdep_softirqs_off+0x420/0x420
[ 243.776382][ T6046] ? kobject_add+0x210/0x210
[ 243.781428][ T6046] ? __init_swait_queue_head+0xa5/0x150
[ 243.787713][ T6046] gfs2_sys_fs_add+0x234/0x480
[ 243.792582][ T6046] ? gfs2_recover_set+0x240/0x240
[ 243.797707][ T6046] ? snprintf+0xd7/0x120
[ 243.802046][ T6046] ? __free_pages+0x95/0x1a0
[ 243.806737][ T6046] ? vscnprintf+0x80/0x80
[ 243.811206][ T6046] gfs2_fill_super+0x128d/0x1f50
[ 243.816343][ T6046] ? gfs2_reconfigure+0xcd0/0xcd0
[ 243.821372][ T6046] ? preempt_count_add+0x8d/0x190
[ 243.826480][ T6046] ? sb_set_blocksize+0xa5/0xe0
[ 243.831344][ T6046] get_tree_bdev+0x3f1/0x610
[ 243.836260][ T6046] ? gfs2_reconfigure+0xcd0/0xcd0
[ 243.841304][ T6046] gfs2_get_tree+0x4d/0x1e0
[ 243.845825][ T6046] vfs_get_tree+0x88/0x270
[ 243.850262][ T6046] do_new_mount+0x24a/0xa40
[ 243.854881][ T6046] __se_sys_mount+0x2d6/0x3c0
[ 243.859693][ T6046] ? __x64_sys_mount+0xc0/0xc0
[ 243.864735][ T6046] ? lockdep_hardirqs_on+0x94/0x140
[ 243.869950][ T6046] ? __x64_sys_mount+0x1c/0xc0
[ 243.874736][ T6046] do_syscall_64+0x4c/0xa0
[ 243.879175][ T6046] ? clear_bhb_loop+0x30/0x80
[ 243.883951][ T6046] ? clear_bhb_loop+0x30/0x80
[ 243.889029][ T6046] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 243.895119][ T6046] RIP: 0033:0x7f9ea399238a
[ 243.899565][ T6046] 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
[ 243.920386][ T6046] RSP: 002b:00007f9ea2fffe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 243.928913][ T6046] RAX: ffffffffffffffda RBX: 00007f9ea2fffef0 RCX: 00007f9ea399238a
[ 243.936904][ T6046] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fffeb0
[ 243.945064][ T6046] RBP: 0000200000000400 R08: 00007f9ea2fffef0 R09: 0000000000000000
2025/09/25 23:54:10 executed programs: 402
[ 243.953191][ T6046] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 243.961340][ T6046] R13: 00007f9ea2fffeb0 R14: 00000000000125ed R15: 0000200000000640
[ 243.969337][ T6046]
[ 243.974261][ T6046] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 243.988568][ T6046] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.016449][ T6043] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 244.024066][ T6043] CPU: 1 PID: 6043 Comm: syz.0.408 Not tainted syzkaller #0
[ 244.031363][ T6043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 244.041436][ T6043] Call Trace:
[ 244.044717][ T6043]
[ 244.047653][ T6043] dump_stack_lvl+0x168/0x230
[ 244.052433][ T6043] ? show_regs_print_info+0x20/0x20
[ 244.057644][ T6043] ? load_image+0x3b0/0x3b0
[ 244.062165][ T6043] sysfs_create_dir_ns+0x252/0x280
[ 244.067292][ T6043] ? __lock_acquire+0x7c60/0x7c60
[ 244.072409][ T6043] ? sysfs_warn_dup+0xa0/0xa0
[ 244.077092][ T6043] ? do_raw_spin_unlock+0x11d/0x230
[ 244.082300][ T6043] kobject_add_internal+0x662/0xd00
[ 244.087509][ T6043] kobject_init_and_add+0x122/0x190
[ 244.092804][ T6043] ? lockdep_softirqs_off+0x420/0x420
[ 244.098442][ T6043] ? kobject_add+0x210/0x210
[ 244.103137][ T6043] ? __init_swait_queue_head+0xa5/0x150
[ 244.108701][ T6043] gfs2_sys_fs_add+0x234/0x480
[ 244.113490][ T6043] ? gfs2_recover_set+0x240/0x240
[ 244.118611][ T6043] ? snprintf+0xd7/0x120
[ 244.123050][ T6043] ? __free_pages+0x95/0x1a0
[ 244.127958][ T6043] ? vscnprintf+0x80/0x80
[ 244.132347][ T6043] gfs2_fill_super+0x128d/0x1f50
[ 244.137399][ T6043] ? gfs2_reconfigure+0xcd0/0xcd0
[ 244.142446][ T6043] ? preempt_count_add+0x8d/0x190
[ 244.147502][ T6043] ? sb_set_blocksize+0xa5/0xe0
[ 244.152370][ T6043] get_tree_bdev+0x3f1/0x610
[ 244.157152][ T6043] ? gfs2_reconfigure+0xcd0/0xcd0
[ 244.162470][ T6043] gfs2_get_tree+0x4d/0x1e0
[ 244.166994][ T6043] vfs_get_tree+0x88/0x270
[ 244.171430][ T6043] do_new_mount+0x24a/0xa40
[ 244.175953][ T6043] __se_sys_mount+0x2d6/0x3c0
[ 244.180659][ T6043] ? __x64_sys_mount+0xc0/0xc0
[ 244.185438][ T6043] ? lockdep_hardirqs_on+0x94/0x140
[ 244.190657][ T6043] ? __x64_sys_mount+0x1c/0xc0
[ 244.195695][ T6043] do_syscall_64+0x4c/0xa0
[ 244.200219][ T6043] ? clear_bhb_loop+0x30/0x80
[ 244.204907][ T6043] ? clear_bhb_loop+0x30/0x80
[ 244.209646][ T6043] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 244.215551][ T6043] RIP: 0033:0x7f454a19a38a
[ 244.220066][ T6043] 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
[ 244.239790][ T6043] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.248220][ T6043] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 244.257039][ T6043] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 244.265201][ T6043] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 244.273185][ T6043] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 244.281293][ T6043] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 244.289514][ T6043]
[ 244.293535][ T6043] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.307253][ T6043] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.339605][ T6048] loop3: detected capacity change from 0 to 32768
[ 244.412860][ T6050] loop4: detected capacity change from 0 to 32768
[ 244.638559][ T6050] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 244.646291][ T6050] CPU: 0 PID: 6050 Comm: syz.4.411 Not tainted syzkaller #0
[ 244.653584][ T6050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 244.654580][ T6052] loop5: detected capacity change from 0 to 32768
[ 244.663653][ T6050] Call Trace:
[ 244.663662][ T6050]
[ 244.676280][ T6050] dump_stack_lvl+0x168/0x230
[ 244.681071][ T6050] ? show_regs_print_info+0x20/0x20
[ 244.686462][ T6050] ? load_image+0x3b0/0x3b0
[ 244.691087][ T6050] sysfs_create_dir_ns+0x252/0x280
[ 244.696227][ T6050] ? __lock_acquire+0x7c60/0x7c60
[ 244.701286][ T6050] ? sysfs_warn_dup+0xa0/0xa0
[ 244.705981][ T6050] ? do_raw_spin_unlock+0x11d/0x230
[ 244.711253][ T6050] kobject_add_internal+0x662/0xd00
[ 244.716749][ T6050] kobject_init_and_add+0x122/0x190
[ 244.722060][ T6050] ? lockdep_softirqs_off+0x420/0x420
[ 244.727453][ T6050] ? kobject_add+0x210/0x210
[ 244.732153][ T6050] ? __init_swait_queue_head+0xa5/0x150
[ 244.737856][ T6050] gfs2_sys_fs_add+0x234/0x480
[ 244.742654][ T6050] ? gfs2_recover_set+0x240/0x240
[ 244.747800][ T6050] ? snprintf+0xd7/0x120
[ 244.747818][ T6048] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 244.759498][ T6050] ? __free_pages+0x95/0x1a0
[ 244.764153][ T6050] ? vscnprintf+0x80/0x80
[ 244.768589][ T6050] gfs2_fill_super+0x128d/0x1f50
[ 244.773622][ T6050] ? gfs2_reconfigure+0xcd0/0xcd0
[ 244.778639][ T6050] ? preempt_count_add+0x8d/0x190
[ 244.783840][ T6050] ? sb_set_blocksize+0xa5/0xe0
[ 244.788685][ T6050] get_tree_bdev+0x3f1/0x610
[ 244.793266][ T6050] ? gfs2_reconfigure+0xcd0/0xcd0
[ 244.798375][ T6050] gfs2_get_tree+0x4d/0x1e0
[ 244.802869][ T6050] vfs_get_tree+0x88/0x270
[ 244.807364][ T6050] do_new_mount+0x24a/0xa40
[ 244.811876][ T6050] __se_sys_mount+0x2d6/0x3c0
[ 244.816639][ T6050] ? __x64_sys_mount+0xc0/0xc0
[ 244.821588][ T6050] ? lockdep_hardirqs_on+0x94/0x140
[ 244.826950][ T6050] ? __x64_sys_mount+0x1c/0xc0
[ 244.832013][ T6050] do_syscall_64+0x4c/0xa0
[ 244.836505][ T6050] ? clear_bhb_loop+0x30/0x80
[ 244.841187][ T6050] ? clear_bhb_loop+0x30/0x80
[ 244.845859][ T6050] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 244.851742][ T6050] RIP: 0033:0x7f000dda438a
[ 244.856144][ T6050] 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
[ 244.876009][ T6050] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.884807][ T6050] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 244.892879][ T6050] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 244.901100][ T6050] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 244.909152][ T6050] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 244.917226][ T6050] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 244.925231][ T6050]
[ 244.928413][ T6048] CPU: 1 PID: 6048 Comm: syz.3.409 Not tainted syzkaller #0
[ 244.930426][ T6050] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.935695][ T6048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 244.935707][ T6048] Call Trace:
[ 244.935713][ T6048]
[ 244.935721][ T6048] dump_stack_lvl+0x168/0x230
[ 244.949118][ T6050] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.959240][ T6048] ? show_regs_print_info+0x20/0x20
[ 244.959266][ T6048] ? load_image+0x3b0/0x3b0
[ 244.959290][ T6048] sysfs_create_dir_ns+0x252/0x280
[ 244.959308][ T6048] ? __lock_acquire+0x7c60/0x7c60
[ 244.959326][ T6048] ? sysfs_warn_dup+0xa0/0xa0
[ 245.001207][ T6048] ? do_raw_spin_unlock+0x11d/0x230
[ 245.006450][ T6048] kobject_add_internal+0x662/0xd00
[ 245.012204][ T6048] kobject_init_and_add+0x122/0x190
[ 245.017718][ T6048] ? lockdep_softirqs_off+0x420/0x420
[ 245.023122][ T6048] ? kobject_add+0x210/0x210
[ 245.027741][ T6048] ? __init_swait_queue_head+0xa5/0x150
[ 245.033302][ T6048] gfs2_sys_fs_add+0x234/0x480
[ 245.038089][ T6048] ? gfs2_recover_set+0x240/0x240
[ 245.043156][ T6048] ? snprintf+0xd7/0x120
[ 245.047534][ T6048] ? __free_pages+0x95/0x1a0
[ 245.052120][ T6048] ? vscnprintf+0x80/0x80
[ 245.056441][ T6048] gfs2_fill_super+0x128d/0x1f50
[ 245.061373][ T6048] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.066390][ T6048] ? preempt_count_add+0x8d/0x190
[ 245.071405][ T6048] ? sb_set_blocksize+0xa5/0xe0
[ 245.076330][ T6048] get_tree_bdev+0x3f1/0x610
[ 245.081005][ T6048] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.086166][ T6048] gfs2_get_tree+0x4d/0x1e0
[ 245.090674][ T6048] vfs_get_tree+0x88/0x270
[ 245.095092][ T6048] do_new_mount+0x24a/0xa40
[ 245.099843][ T6048] __se_sys_mount+0x2d6/0x3c0
[ 245.104508][ T6048] ? __x64_sys_mount+0xc0/0xc0
[ 245.109355][ T6048] ? lockdep_hardirqs_on+0x94/0x140
[ 245.114535][ T6048] ? __x64_sys_mount+0x1c/0xc0
[ 245.119287][ T6048] do_syscall_64+0x4c/0xa0
[ 245.123685][ T6048] ? clear_bhb_loop+0x30/0x80
[ 245.128346][ T6048] ? clear_bhb_loop+0x30/0x80
[ 245.133011][ T6048] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 245.138887][ T6048] RIP: 0033:0x7f17c050238a
[ 245.143378][ T6048] 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
[ 245.162971][ T6048] RSP: 002b:00007f17bfb6fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.171382][ T6048] RAX: ffffffffffffffda RBX: 00007f17bfb6fef0 RCX: 00007f17c050238a
[ 245.179341][ T6048] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f17bfb6feb0
[ 245.187299][ T6048] RBP: 0000200000000400 R08: 00007f17bfb6fef0 R09: 0000000000000000
[ 245.195805][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 245.203942][ T6048] R13: 00007f17bfb6feb0 R14: 00000000000125ed R15: 0000200000000640
[ 245.212081][ T6048]
[ 245.215201][ T6048] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.228891][ T6048] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.269517][ T6052] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.277064][ T6052] CPU: 0 PID: 6052 Comm: syz.5.410 Not tainted syzkaller #0
[ 245.284358][ T6052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 245.294573][ T6052] Call Trace:
[ 245.297869][ T6052]
[ 245.300945][ T6052] dump_stack_lvl+0x168/0x230
[ 245.305655][ T6052] ? show_regs_print_info+0x20/0x20
[ 245.311048][ T6052] ? load_image+0x3b0/0x3b0
[ 245.315573][ T6052] sysfs_create_dir_ns+0x252/0x280
[ 245.320705][ T6052] ? __lock_acquire+0x7c60/0x7c60
[ 245.325755][ T6052] ? sysfs_warn_dup+0xa0/0xa0
[ 245.330514][ T6052] ? do_raw_spin_unlock+0x11d/0x230
[ 245.335727][ T6052] kobject_add_internal+0x662/0xd00
[ 245.340985][ T6052] kobject_init_and_add+0x122/0x190
[ 245.346381][ T6052] ? lockdep_softirqs_off+0x420/0x420
[ 245.351865][ T6052] ? kobject_add+0x210/0x210
[ 245.356489][ T6052] ? __init_swait_queue_head+0xa5/0x150
[ 245.362156][ T6052] gfs2_sys_fs_add+0x234/0x480
[ 245.366961][ T6052] ? gfs2_recover_set+0x240/0x240
[ 245.372004][ T6052] ? snprintf+0xd7/0x120
[ 245.376267][ T6052] ? __free_pages+0x95/0x1a0
[ 245.380938][ T6052] ? vscnprintf+0x80/0x80
[ 245.385397][ T6052] gfs2_fill_super+0x128d/0x1f50
[ 245.390368][ T6052] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.395480][ T6052] ? preempt_count_add+0x8d/0x190
[ 245.400727][ T6052] ? sb_set_blocksize+0xa5/0xe0
[ 245.405603][ T6052] get_tree_bdev+0x3f1/0x610
[ 245.410308][ T6052] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.415353][ T6052] gfs2_get_tree+0x4d/0x1e0
[ 245.420004][ T6052] vfs_get_tree+0x88/0x270
[ 245.424551][ T6052] do_new_mount+0x24a/0xa40
[ 245.429080][ T6052] __se_sys_mount+0x2d6/0x3c0
[ 245.433767][ T6052] ? __x64_sys_mount+0xc0/0xc0
[ 245.438641][ T6052] ? lockdep_hardirqs_on+0x94/0x140
[ 245.443864][ T6052] ? __x64_sys_mount+0x1c/0xc0
[ 245.448651][ T6052] do_syscall_64+0x4c/0xa0
[ 245.453349][ T6052] ? clear_bhb_loop+0x30/0x80
[ 245.458132][ T6052] ? clear_bhb_loop+0x30/0x80
[ 245.462837][ T6052] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 245.468743][ T6052] RIP: 0033:0x7eff7626138a
[ 245.473173][ T6052] 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
[ 245.493022][ T6052] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.501492][ T6052] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 245.509480][ T6052] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 245.517566][ T6052] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 245.525692][ T6052] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 245.533831][ T6052] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 245.542137][ T6052]
[ 245.548937][ T6052] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.563733][ T6052] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.836127][ T6058] loop0: detected capacity change from 0 to 32768
[ 245.879586][ T6058] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.887086][ T6058] CPU: 1 PID: 6058 Comm: syz.0.415 Not tainted syzkaller #0
[ 245.894381][ T6058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 245.904548][ T6058] Call Trace:
[ 245.908038][ T6058]
[ 245.911059][ T6058] dump_stack_lvl+0x168/0x230
[ 245.915862][ T6058] ? show_regs_print_info+0x20/0x20
[ 245.921180][ T6058] ? load_image+0x3b0/0x3b0
[ 245.925711][ T6058] sysfs_create_dir_ns+0x252/0x280
[ 245.930835][ T6058] ? __lock_acquire+0x7c60/0x7c60
[ 245.935887][ T6058] ? sysfs_warn_dup+0xa0/0xa0
[ 245.940754][ T6058] ? do_raw_spin_unlock+0x11d/0x230
[ 245.946006][ T6058] kobject_add_internal+0x662/0xd00
[ 245.951312][ T6058] kobject_init_and_add+0x122/0x190
[ 245.956960][ T6058] ? lockdep_softirqs_off+0x420/0x420
[ 245.962441][ T6058] ? kobject_add+0x210/0x210
[ 245.967225][ T6058] ? __init_swait_queue_head+0xa5/0x150
[ 245.972938][ T6058] gfs2_sys_fs_add+0x234/0x480
[ 245.977824][ T6058] ? gfs2_recover_set+0x240/0x240
[ 245.982880][ T6058] ? snprintf+0xd7/0x120
[ 245.987262][ T6058] ? __free_pages+0x95/0x1a0
[ 245.992135][ T6058] ? vscnprintf+0x80/0x80
[ 245.996480][ T6058] gfs2_fill_super+0x128d/0x1f50
[ 246.001444][ T6058] ? gfs2_reconfigure+0xcd0/0xcd0
[ 246.006500][ T6058] ? preempt_count_add+0x8d/0x190
[ 246.011550][ T6058] ? sb_set_blocksize+0xa5/0xe0
[ 246.016619][ T6058] get_tree_bdev+0x3f1/0x610
[ 246.021332][ T6058] ? gfs2_reconfigure+0xcd0/0xcd0
[ 246.026463][ T6058] gfs2_get_tree+0x4d/0x1e0
[ 246.030982][ T6058] vfs_get_tree+0x88/0x270
[ 246.035419][ T6058] do_new_mount+0x24a/0xa40
[ 246.039971][ T6058] __se_sys_mount+0x2d6/0x3c0
[ 246.044884][ T6058] ? __x64_sys_mount+0xc0/0xc0
[ 246.049798][ T6058] ? lockdep_hardirqs_on+0x94/0x140
[ 246.055213][ T6058] ? __x64_sys_mount+0x1c/0xc0
[ 246.060001][ T6058] do_syscall_64+0x4c/0xa0
[ 246.064438][ T6058] ? clear_bhb_loop+0x30/0x80
[ 246.069123][ T6058] ? clear_bhb_loop+0x30/0x80
[ 246.073855][ T6058] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 246.079758][ T6058] RIP: 0033:0x7f454a19a38a
[ 246.084180][ T6058] 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
[ 246.104082][ T6058] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 246.112603][ T6058] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 246.120675][ T6058] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 246.128744][ T6058] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 246.136820][ T6058] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 246.144812][ T6058] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 246.152899][ T6058]
[ 246.156992][ T6058] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 246.170271][ T6058] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 246.469055][ T6062] loop3: detected capacity change from 0 to 32768
[ 246.541563][ T6064] loop4: detected capacity change from 0 to 32768
[ 246.844923][ T6062] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 246.852586][ T6062] CPU: 0 PID: 6062 Comm: syz.3.414 Not tainted syzkaller #0
[ 246.859878][ T6062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 246.869952][ T6062] Call Trace:
[ 246.873330][ T6062]
[ 246.876281][ T6062] dump_stack_lvl+0x168/0x230
[ 246.881084][ T6062] ? show_regs_print_info+0x20/0x20
[ 246.886526][ T6062] ? load_image+0x3b0/0x3b0
[ 246.891055][ T6062] sysfs_create_dir_ns+0x252/0x280
[ 246.896195][ T6062] ? __lock_acquire+0x7c60/0x7c60
[ 246.901337][ T6062] ? sysfs_warn_dup+0xa0/0xa0
[ 246.906427][ T6062] ? do_raw_spin_unlock+0x11d/0x230
[ 246.911857][ T6062] kobject_add_internal+0x662/0xd00
[ 246.917266][ T6062] kobject_init_and_add+0x122/0x190
[ 246.922488][ T6062] ? lockdep_softirqs_off+0x420/0x420
[ 246.927918][ T6062] ? kobject_add+0x210/0x210
[ 246.932538][ T6062] ? __init_swait_queue_head+0xa5/0x150
[ 246.938114][ T6062] gfs2_sys_fs_add+0x234/0x480
[ 246.942972][ T6062] ? gfs2_recover_set+0x240/0x240
[ 246.948106][ T6062] ? snprintf+0xd7/0x120
[ 246.952353][ T6062] ? __free_pages+0x95/0x1a0
[ 246.956937][ T6062] ? vscnprintf+0x80/0x80
[ 246.961263][ T6062] gfs2_fill_super+0x128d/0x1f50
[ 246.966321][ T6062] ? gfs2_reconfigure+0xcd0/0xcd0
[ 246.971350][ T6062] ? preempt_count_add+0x8d/0x190
[ 246.976732][ T6062] ? sb_set_blocksize+0xa5/0xe0
[ 246.981670][ T6062] get_tree_bdev+0x3f1/0x610
[ 246.986370][ T6062] ? gfs2_reconfigure+0xcd0/0xcd0
[ 246.991389][ T6062] gfs2_get_tree+0x4d/0x1e0
[ 246.996027][ T6062] vfs_get_tree+0x88/0x270
[ 247.000528][ T6062] do_new_mount+0x24a/0xa40
[ 247.005028][ T6062] __se_sys_mount+0x2d6/0x3c0
[ 247.009697][ T6062] ? __x64_sys_mount+0xc0/0xc0
[ 247.014532][ T6062] ? lockdep_hardirqs_on+0x94/0x140
[ 247.020012][ T6062] ? __x64_sys_mount+0x1c/0xc0
[ 247.024963][ T6062] do_syscall_64+0x4c/0xa0
[ 247.029559][ T6062] ? clear_bhb_loop+0x30/0x80
[ 247.034397][ T6062] ? clear_bhb_loop+0x30/0x80
[ 247.039147][ T6062] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 247.045250][ T6062] RIP: 0033:0x7f17c050238a
[ 247.049845][ T6062] 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
[ 247.069613][ T6062] RSP: 002b:00007f17bfb6fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.078013][ T6062] RAX: ffffffffffffffda RBX: 00007f17bfb6fef0 RCX: 00007f17c050238a
[ 247.086057][ T6062] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f17bfb6feb0
[ 247.094209][ T6062] RBP: 0000200000000400 R08: 00007f17bfb6fef0 R09: 0000000000000000
[ 247.102183][ T6062] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 247.110310][ T6062] R13: 00007f17bfb6feb0 R14: 00000000000125ed R15: 0000200000000640
[ 247.118418][ T6062]
[ 247.122434][ T6062] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 247.131125][ T6064] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.135878][ T6062] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 247.143150][ T6064] CPU: 1 PID: 6064 Comm: syz.4.413 Not tainted syzkaller #0
[ 247.157041][ T6064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 247.167714][ T6064] Call Trace:
[ 247.171123][ T6064]
[ 247.174049][ T6064] dump_stack_lvl+0x168/0x230
[ 247.178856][ T6064] ? show_regs_print_info+0x20/0x20
[ 247.184061][ T6064] ? load_image+0x3b0/0x3b0
[ 247.188593][ T6064] sysfs_create_dir_ns+0x252/0x280
[ 247.193715][ T6064] ? __lock_acquire+0x7c60/0x7c60
[ 247.198783][ T6064] ? sysfs_warn_dup+0xa0/0xa0
[ 247.203586][ T6064] ? do_raw_spin_unlock+0x11d/0x230
[ 247.208912][ T6064] kobject_add_internal+0x662/0xd00
[ 247.214126][ T6064] kobject_init_and_add+0x122/0x190
[ 247.219336][ T6064] ? lockdep_softirqs_off+0x420/0x420
[ 247.224823][ T6064] ? kobject_add+0x210/0x210
[ 247.229535][ T6064] ? __init_swait_queue_head+0xa5/0x150
[ 247.235198][ T6064] gfs2_sys_fs_add+0x234/0x480
[ 247.240080][ T6064] ? gfs2_recover_set+0x240/0x240
[ 247.245129][ T6064] ? snprintf+0xd7/0x120
[ 247.249379][ T6064] ? __free_pages+0x95/0x1a0
[ 247.254270][ T6064] ? vscnprintf+0x80/0x80
[ 247.258631][ T6064] gfs2_fill_super+0x128d/0x1f50
[ 247.264387][ T6064] ? gfs2_reconfigure+0xcd0/0xcd0
[ 247.269537][ T6064] ? preempt_count_add+0x8d/0x190
[ 247.274627][ T6064] ? sb_set_blocksize+0xa5/0xe0
[ 247.279518][ T6064] get_tree_bdev+0x3f1/0x610
[ 247.284149][ T6064] ? gfs2_reconfigure+0xcd0/0xcd0
[ 247.289191][ T6064] gfs2_get_tree+0x4d/0x1e0
[ 247.293709][ T6064] vfs_get_tree+0x88/0x270
[ 247.299985][ T6064] do_new_mount+0x24a/0xa40
[ 247.304646][ T6064] __se_sys_mount+0x2d6/0x3c0
[ 247.309343][ T6064] ? __x64_sys_mount+0xc0/0xc0
[ 247.314126][ T6064] ? lockdep_hardirqs_on+0x94/0x140
[ 247.319361][ T6064] ? __x64_sys_mount+0x1c/0xc0
[ 247.324344][ T6064] do_syscall_64+0x4c/0xa0
[ 247.328904][ T6064] ? clear_bhb_loop+0x30/0x80
[ 247.333699][ T6064] ? clear_bhb_loop+0x30/0x80
[ 247.338388][ T6064] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 247.344307][ T6064] RIP: 0033:0x7f000dda438a
[ 247.348911][ T6064] 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
[ 247.369061][ T6064] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.377506][ T6064] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 247.385590][ T6064] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 247.393767][ T6064] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 247.402279][ T6064] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 247.410278][ T6064] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 247.418445][ T6064]
[ 247.422265][ T6064] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 247.435526][ T6064] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 247.574729][ T6056] loop1: detected capacity change from 0 to 32768
[ 247.870108][ T6070] loop5: detected capacity change from 0 to 32768
[ 247.901541][ T6072] loop0: detected capacity change from 0 to 32768
[ 247.904536][ T6074] loop4: detected capacity change from 0 to 32768
[ 247.932999][ T6070] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.940504][ T6070] CPU: 1 PID: 6070 Comm: syz.5.419 Not tainted syzkaller #0
[ 247.947920][ T6070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 247.958104][ T6070] Call Trace:
[ 247.961389][ T6070]
[ 247.964334][ T6070] dump_stack_lvl+0x168/0x230
[ 247.969202][ T6070] ? show_regs_print_info+0x20/0x20
[ 247.974506][ T6070] ? load_image+0x3b0/0x3b0
[ 247.979038][ T6070] sysfs_create_dir_ns+0x252/0x280
[ 247.984348][ T6070] ? __lock_acquire+0x7c60/0x7c60
[ 247.989389][ T6070] ? sysfs_warn_dup+0xa0/0xa0
[ 247.994196][ T6070] ? do_raw_spin_unlock+0x11d/0x230
[ 247.999593][ T6070] kobject_add_internal+0x662/0xd00
[ 248.004841][ T6070] kobject_init_and_add+0x122/0x190
[ 248.010177][ T6070] ? lockdep_softirqs_off+0x420/0x420
[ 248.015676][ T6070] ? kobject_add+0x210/0x210
[ 248.020295][ T6070] ? __init_swait_queue_head+0xa5/0x150
[ 248.025865][ T6070] gfs2_sys_fs_add+0x234/0x480
[ 248.030671][ T6070] ? gfs2_recover_set+0x240/0x240
[ 248.035704][ T6070] ? snprintf+0xd7/0x120
[ 248.039961][ T6070] ? __free_pages+0x95/0x1a0
[ 248.044557][ T6070] ? vscnprintf+0x80/0x80
[ 248.048903][ T6070] gfs2_fill_super+0x128d/0x1f50
[ 248.053866][ T6070] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.058999][ T6070] ? preempt_count_add+0x8d/0x190
[ 248.064052][ T6070] ? sb_set_blocksize+0xa5/0xe0
[ 248.068930][ T6070] get_tree_bdev+0x3f1/0x610
[ 248.073622][ T6070] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.078754][ T6070] gfs2_get_tree+0x4d/0x1e0
[ 248.083268][ T6070] vfs_get_tree+0x88/0x270
[ 248.087690][ T6070] do_new_mount+0x24a/0xa40
[ 248.092257][ T6070] __se_sys_mount+0x2d6/0x3c0
[ 248.097050][ T6070] ? __x64_sys_mount+0xc0/0xc0
[ 248.101825][ T6070] ? lockdep_hardirqs_on+0x94/0x140
[ 248.107023][ T6070] ? __x64_sys_mount+0x1c/0xc0
[ 248.111806][ T6070] do_syscall_64+0x4c/0xa0
[ 248.116318][ T6070] ? clear_bhb_loop+0x30/0x80
[ 248.121131][ T6070] ? clear_bhb_loop+0x30/0x80
[ 248.125830][ T6070] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.131939][ T6070] RIP: 0033:0x7eff7626138a
[ 248.136366][ T6070] 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
[ 248.156283][ T6070] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.164847][ T6070] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 248.172845][ T6070] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 248.181021][ T6070] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 248.189013][ T6070] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.197080][ T6070] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 248.205159][ T6070]
[ 248.209699][ T6070] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.223214][ T6070] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.240572][ T6076] loop3: detected capacity change from 0 to 32768
[ 248.256023][ T6072] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.263649][ T6072] CPU: 1 PID: 6072 Comm: syz.0.420 Not tainted syzkaller #0
[ 248.270940][ T6072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 248.281171][ T6072] Call Trace:
[ 248.284456][ T6072]
[ 248.287387][ T6072] dump_stack_lvl+0x168/0x230
[ 248.292255][ T6072] ? show_regs_print_info+0x20/0x20
[ 248.297633][ T6072] ? load_image+0x3b0/0x3b0
[ 248.302150][ T6072] sysfs_create_dir_ns+0x252/0x280
[ 248.307272][ T6072] ? __lock_acquire+0x7c60/0x7c60
[ 248.312303][ T6072] ? sysfs_warn_dup+0xa0/0xa0
[ 248.316990][ T6072] ? do_raw_spin_unlock+0x11d/0x230
[ 248.322212][ T6072] kobject_add_internal+0x662/0xd00
[ 248.327641][ T6072] kobject_init_and_add+0x122/0x190
[ 248.332851][ T6072] ? lockdep_softirqs_off+0x420/0x420
[ 248.338236][ T6072] ? kobject_add+0x210/0x210
[ 248.342847][ T6072] ? __init_swait_queue_head+0xa5/0x150
[ 248.348496][ T6072] gfs2_sys_fs_add+0x234/0x480
[ 248.353372][ T6072] ? gfs2_recover_set+0x240/0x240
[ 248.358416][ T6072] ? snprintf+0xd7/0x120
[ 248.362680][ T6072] ? __free_pages+0x95/0x1a0
[ 248.367296][ T6072] ? vscnprintf+0x80/0x80
[ 248.371751][ T6072] gfs2_fill_super+0x128d/0x1f50
[ 248.376751][ T6072] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.381959][ T6072] ? preempt_count_add+0x8d/0x190
[ 248.387056][ T6072] ? sb_set_blocksize+0xa5/0xe0
[ 248.391917][ T6072] get_tree_bdev+0x3f1/0x610
[ 248.396505][ T6072] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.401607][ T6072] gfs2_get_tree+0x4d/0x1e0
[ 248.406362][ T6072] vfs_get_tree+0x88/0x270
[ 248.410771][ T6072] do_new_mount+0x24a/0xa40
[ 248.415275][ T6072] __se_sys_mount+0x2d6/0x3c0
[ 248.419964][ T6072] ? __x64_sys_mount+0xc0/0xc0
[ 248.424831][ T6072] ? lockdep_hardirqs_on+0x94/0x140
[ 248.430114][ T6072] ? __x64_sys_mount+0x1c/0xc0
[ 248.435153][ T6072] do_syscall_64+0x4c/0xa0
[ 248.439713][ T6072] ? clear_bhb_loop+0x30/0x80
[ 248.444380][ T6072] ? clear_bhb_loop+0x30/0x80
[ 248.449048][ T6072] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.454943][ T6072] RIP: 0033:0x7f454a19a38a
[ 248.459791][ T6072] 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
[ 248.479597][ T6072] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.488230][ T6072] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 248.496375][ T6072] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 248.504830][ T6072] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 248.512983][ T6072] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.521043][ T6072] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 248.529221][ T6072]
[ 248.533110][ T6072] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.546805][ T6072] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.559400][ T6074] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.566981][ T6074] CPU: 0 PID: 6074 Comm: syz.4.421 Not tainted syzkaller #0
[ 248.574277][ T6074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 248.584429][ T6074] Call Trace:
[ 248.587890][ T6074]
[ 248.590905][ T6074] dump_stack_lvl+0x168/0x230
[ 248.595679][ T6074] ? show_regs_print_info+0x20/0x20
[ 248.600886][ T6074] ? load_image+0x3b0/0x3b0
[ 248.605405][ T6074] sysfs_create_dir_ns+0x252/0x280
[ 248.610792][ T6074] ? __lock_acquire+0x7c60/0x7c60
[ 248.615843][ T6074] ? sysfs_warn_dup+0xa0/0xa0
[ 248.620623][ T6074] ? do_raw_spin_unlock+0x11d/0x230
[ 248.625960][ T6074] kobject_add_internal+0x662/0xd00
[ 248.631274][ T6074] kobject_init_and_add+0x122/0x190
[ 248.636606][ T6074] ? lockdep_softirqs_off+0x420/0x420
[ 248.642354][ T6074] ? kobject_add+0x210/0x210
[ 248.647124][ T6074] ? __init_swait_queue_head+0xa5/0x150
[ 248.652701][ T6074] gfs2_sys_fs_add+0x234/0x480
[ 248.657485][ T6074] ? gfs2_recover_set+0x240/0x240
[ 248.662607][ T6074] ? snprintf+0xd7/0x120
[ 248.666867][ T6074] ? __free_pages+0x95/0x1a0
[ 248.671603][ T6074] ? vscnprintf+0x80/0x80
[ 248.676046][ T6074] gfs2_fill_super+0x128d/0x1f50
[ 248.681008][ T6074] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.686047][ T6074] ? preempt_count_add+0x8d/0x190
[ 248.691179][ T6074] ? sb_set_blocksize+0xa5/0xe0
[ 248.696045][ T6074] get_tree_bdev+0x3f1/0x610
[ 248.700914][ T6074] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.705951][ T6074] gfs2_get_tree+0x4d/0x1e0
[ 248.710472][ T6074] vfs_get_tree+0x88/0x270
[ 248.714908][ T6074] do_new_mount+0x24a/0xa40
[ 248.719523][ T6074] __se_sys_mount+0x2d6/0x3c0
[ 248.724486][ T6074] ? __x64_sys_mount+0xc0/0xc0
[ 248.729258][ T6074] ? lockdep_hardirqs_on+0x94/0x140
[ 248.734462][ T6074] ? __x64_sys_mount+0x1c/0xc0
[ 248.739229][ T6074] do_syscall_64+0x4c/0xa0
[ 248.743641][ T6074] ? clear_bhb_loop+0x30/0x80
[ 248.748314][ T6074] ? clear_bhb_loop+0x30/0x80
[ 248.752990][ T6074] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.759020][ T6074] RIP: 0033:0x7f000dda438a
[ 248.763448][ T6074] 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
[ 248.783252][ T6074] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.791883][ T6074] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 248.800166][ T6074] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 248.808160][ T6074] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 248.816156][ T6074] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.824140][ T6074] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 248.832219][ T6074]
[ 248.835306][ T6074] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.848459][ T6074] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.867632][ T6076] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.876212][ T6076] CPU: 0 PID: 6076 Comm: syz.3.422 Not tainted syzkaller #0
[ 248.883647][ T6076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 248.885429][ T6078] loop1: detected capacity change from 0 to 32768
[ 248.894083][ T6076] Call Trace:
[ 248.894097][ T6076]
[ 248.894106][ T6076] dump_stack_lvl+0x168/0x230
[ 248.894133][ T6076] ? show_regs_print_info+0x20/0x20
[ 248.894149][ T6076] ? load_image+0x3b0/0x3b0
[ 248.921094][ T6076] sysfs_create_dir_ns+0x252/0x280
[ 248.926383][ T6076] ? __lock_acquire+0x7c60/0x7c60
[ 248.931510][ T6076] ? sysfs_warn_dup+0xa0/0xa0
[ 248.936215][ T6076] ? do_raw_spin_unlock+0x11d/0x230
[ 248.941666][ T6076] kobject_add_internal+0x662/0xd00
[ 248.946978][ T6076] kobject_init_and_add+0x122/0x190
[ 248.952408][ T6076] ? lockdep_softirqs_off+0x420/0x420
[ 248.957903][ T6076] ? kobject_add+0x210/0x210
[ 248.962610][ T6076] ? __init_swait_queue_head+0xa5/0x150
[ 248.968294][ T6076] gfs2_sys_fs_add+0x234/0x480
[ 248.973166][ T6076] ? gfs2_recover_set+0x240/0x240
[ 248.978208][ T6076] ? snprintf+0xd7/0x120
[ 248.982469][ T6076] ? __free_pages+0x95/0x1a0
[ 248.987260][ T6076] ? vscnprintf+0x80/0x80
[ 248.991655][ T6076] gfs2_fill_super+0x128d/0x1f50
[ 248.996623][ T6076] ? gfs2_reconfigure+0xcd0/0xcd0
[ 249.001664][ T6076] ? preempt_count_add+0x8d/0x190
[ 249.006758][ T6076] ? sb_set_blocksize+0xa5/0xe0
[ 249.011745][ T6076] get_tree_bdev+0x3f1/0x610
[ 249.016353][ T6076] ? gfs2_reconfigure+0xcd0/0xcd0
[ 249.021494][ T6076] gfs2_get_tree+0x4d/0x1e0
[ 249.026188][ T6076] vfs_get_tree+0x88/0x270
[ 249.030799][ T6076] do_new_mount+0x24a/0xa40
[ 249.035359][ T6076] __se_sys_mount+0x2d6/0x3c0
[ 249.040143][ T6076] ? __x64_sys_mount+0xc0/0xc0
[ 249.044933][ T6076] ? lockdep_hardirqs_on+0x94/0x140
[ 249.050142][ T6076] ? __x64_sys_mount+0x1c/0xc0
[ 249.054929][ T6076] do_syscall_64+0x4c/0xa0
[ 249.059360][ T6076] ? clear_bhb_loop+0x30/0x80
[ 249.064042][ T6076] ? clear_bhb_loop+0x30/0x80
[ 249.068855][ T6076] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 249.074745][ T6076] RIP: 0033:0x7f17c050238a
2025/09/25 23:54:15 executed programs: 417
[ 249.079159][ T6076] 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
[ 249.099051][ T6076] RSP: 002b:00007f17bfb6fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.107482][ T6076] RAX: ffffffffffffffda RBX: 00007f17bfb6fef0 RCX: 00007f17c050238a
[ 249.115478][ T6076] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f17bfb6feb0
[ 249.123476][ T6076] RBP: 0000200000000400 R08: 00007f17bfb6fef0 R09: 0000000000000000
[ 249.131682][ T6076] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 249.139671][ T6076] R13: 00007f17bfb6feb0 R14: 00000000000125ed R15: 0000200000000640
[ 249.147671][ T6076]
[ 249.151031][ T6076] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.164265][ T6076] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.300563][ T6078] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.308114][ T6078] CPU: 0 PID: 6078 Comm: syz.1.423 Not tainted syzkaller #0
[ 249.315429][ T6078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 249.325502][ T6078] Call Trace:
[ 249.328889][ T6078]
[ 249.331571][ T6080] loop4: detected capacity change from 0 to 32768
[ 249.331824][ T6078] dump_stack_lvl+0x168/0x230
[ 249.343007][ T6078] ? show_regs_print_info+0x20/0x20
[ 249.348217][ T6078] ? load_image+0x3b0/0x3b0
[ 249.352737][ T6078] sysfs_create_dir_ns+0x252/0x280
[ 249.357866][ T6078] ? __lock_acquire+0x7c60/0x7c60
[ 249.362906][ T6078] ? sysfs_warn_dup+0xa0/0xa0
[ 249.367605][ T6078] ? do_raw_spin_unlock+0x11d/0x230
[ 249.372998][ T6078] kobject_add_internal+0x662/0xd00
[ 249.378217][ T6078] kobject_init_and_add+0x122/0x190
[ 249.383427][ T6078] ? lockdep_softirqs_off+0x420/0x420
[ 249.388812][ T6078] ? kobject_add+0x210/0x210
[ 249.393410][ T6078] ? __init_swait_queue_head+0xa5/0x150
[ 249.398963][ T6078] gfs2_sys_fs_add+0x234/0x480
[ 249.403912][ T6078] ? gfs2_recover_set+0x240/0x240
[ 249.409045][ T6078] ? snprintf+0xd7/0x120
[ 249.413302][ T6078] ? __free_pages+0x95/0x1a0
[ 249.417909][ T6078] ? vscnprintf+0x80/0x80
[ 249.422264][ T6078] gfs2_fill_super+0x128d/0x1f50
[ 249.427326][ T6078] ? gfs2_reconfigure+0xcd0/0xcd0
[ 249.432382][ T6078] ? preempt_count_add+0x8d/0x190
[ 249.437447][ T6078] ? sb_set_blocksize+0xa5/0xe0
[ 249.442319][ T6078] get_tree_bdev+0x3f1/0x610
[ 249.446931][ T6078] ? gfs2_reconfigure+0xcd0/0xcd0
[ 249.452083][ T6078] gfs2_get_tree+0x4d/0x1e0
[ 249.456641][ T6078] vfs_get_tree+0x88/0x270
[ 249.461092][ T6078] do_new_mount+0x24a/0xa40
[ 249.465707][ T6078] __se_sys_mount+0x2d6/0x3c0
[ 249.470509][ T6078] ? __x64_sys_mount+0xc0/0xc0
[ 249.475380][ T6078] ? lockdep_hardirqs_on+0x94/0x140
[ 249.480778][ T6078] ? __x64_sys_mount+0x1c/0xc0
[ 249.485563][ T6078] do_syscall_64+0x4c/0xa0
[ 249.489995][ T6078] ? clear_bhb_loop+0x30/0x80
[ 249.494805][ T6078] ? clear_bhb_loop+0x30/0x80
[ 249.499561][ T6078] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 249.505632][ T6078] RIP: 0033:0x7f9ea399238a
[ 249.510237][ T6078] 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
[ 249.530024][ T6078] RSP: 002b:00007f9ea2fffe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.538678][ T6078] RAX: ffffffffffffffda RBX: 00007f9ea2fffef0 RCX: 00007f9ea399238a
[ 249.547060][ T6078] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fffeb0
[ 249.555223][ T6078] RBP: 0000200000000400 R08: 00007f9ea2fffef0 R09: 0000000000000000
[ 249.563450][ T6078] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 249.571524][ T6078] R13: 00007f9ea2fffeb0 R14: 00000000000125ed R15: 0000200000000640
[ 249.579614][ T6078]
[ 249.584224][ T6078] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.598344][ T6078] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.646687][ T6080] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.654259][ T6080] CPU: 0 PID: 6080 Comm: syz.4.424 Not tainted syzkaller #0
[ 249.661738][ T6080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 249.671915][ T6080] Call Trace:
[ 249.675460][ T6080]
[ 249.678438][ T6080] dump_stack_lvl+0x168/0x230
[ 249.683131][ T6080] ? show_regs_print_info+0x20/0x20
[ 249.688347][ T6080] ? load_image+0x3b0/0x3b0
[ 249.692978][ T6080] sysfs_create_dir_ns+0x252/0x280
[ 249.698330][ T6080] ? __lock_acquire+0x7c60/0x7c60
[ 249.703726][ T6080] ? sysfs_warn_dup+0xa0/0xa0
[ 249.708556][ T6080] ? do_raw_spin_unlock+0x11d/0x230
[ 249.713809][ T6080] kobject_add_internal+0x662/0xd00
[ 249.719029][ T6080] kobject_init_and_add+0x122/0x190
[ 249.724250][ T6080] ? lockdep_softirqs_off+0x420/0x420
[ 249.729653][ T6080] ? kobject_add+0x210/0x210
[ 249.734271][ T6080] ? __init_swait_queue_head+0xa5/0x150
[ 249.739834][ T6080] gfs2_sys_fs_add+0x234/0x480
[ 249.744654][ T6080] ? gfs2_recover_set+0x240/0x240
[ 249.749896][ T6080] ? snprintf+0xd7/0x120
[ 249.754240][ T6080] ? __free_pages+0x95/0x1a0
[ 249.758865][ T6080] ? vscnprintf+0x80/0x80
[ 249.763296][ T6080] gfs2_fill_super+0x128d/0x1f50
[ 249.768248][ T6080] ? gfs2_reconfigure+0xcd0/0xcd0
[ 249.773295][ T6080] ? preempt_count_add+0x8d/0x190
[ 249.778430][ T6080] ? sb_set_blocksize+0xa5/0xe0
[ 249.783288][ T6080] get_tree_bdev+0x3f1/0x610
[ 249.787969][ T6080] ? gfs2_reconfigure+0xcd0/0xcd0
[ 249.793085][ T6080] gfs2_get_tree+0x4d/0x1e0
[ 249.797696][ T6080] vfs_get_tree+0x88/0x270
[ 249.799208][ T6085] loop0: detected capacity change from 0 to 32768
[ 249.802123][ T6080] do_new_mount+0x24a/0xa40
[ 249.813214][ T6080] __se_sys_mount+0x2d6/0x3c0
[ 249.817914][ T6080] ? __x64_sys_mount+0xc0/0xc0
[ 249.822700][ T6080] ? lockdep_hardirqs_on+0x94/0x140
[ 249.827915][ T6080] ? __x64_sys_mount+0x1c/0xc0
[ 249.832693][ T6080] do_syscall_64+0x4c/0xa0
[ 249.837119][ T6080] ? clear_bhb_loop+0x30/0x80
[ 249.841804][ T6080] ? clear_bhb_loop+0x30/0x80
[ 249.846493][ T6080] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 249.852469][ T6080] RIP: 0033:0x7f000dda438a
[ 249.856891][ T6080] 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
[ 249.876554][ T6080] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.884980][ T6080] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 249.892967][ T6080] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 249.900957][ T6080] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 249.909035][ T6080] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 249.917034][ T6080] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 249.925134][ T6080]
[ 249.929274][ T6080] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.943115][ T6080] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.248160][ T6085] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.255864][ T6085] CPU: 1 PID: 6085 Comm: syz.0.427 Not tainted syzkaller #0
[ 250.263296][ T6085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 250.273384][ T6085] Call Trace:
[ 250.276670][ T6085]
[ 250.279613][ T6085] dump_stack_lvl+0x168/0x230
[ 250.284416][ T6085] ? show_regs_print_info+0x20/0x20
[ 250.289627][ T6085] ? load_image+0x3b0/0x3b0
[ 250.294143][ T6085] sysfs_create_dir_ns+0x252/0x280
[ 250.299276][ T6085] ? __lock_acquire+0x7c60/0x7c60
[ 250.304450][ T6085] ? sysfs_warn_dup+0xa0/0xa0
[ 250.309340][ T6085] ? do_raw_spin_unlock+0x11d/0x230
[ 250.314569][ T6085] kobject_add_internal+0x662/0xd00
[ 250.319792][ T6085] kobject_init_and_add+0x122/0x190
[ 250.324998][ T6085] ? lockdep_softirqs_off+0x420/0x420
[ 250.330384][ T6085] ? kobject_add+0x210/0x210
[ 250.335284][ T6085] ? __init_swait_queue_head+0xa5/0x150
[ 250.340849][ T6085] gfs2_sys_fs_add+0x234/0x480
[ 250.345621][ T6085] ? gfs2_recover_set+0x240/0x240
[ 250.350757][ T6085] ? snprintf+0xd7/0x120
[ 250.355008][ T6085] ? __free_pages+0x95/0x1a0
[ 250.359771][ T6085] ? vscnprintf+0x80/0x80
[ 250.364247][ T6085] gfs2_fill_super+0x128d/0x1f50
[ 250.369213][ T6085] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.374256][ T6085] ? preempt_count_add+0x8d/0x190
[ 250.379510][ T6085] ? sb_set_blocksize+0xa5/0xe0
[ 250.384736][ T6085] get_tree_bdev+0x3f1/0x610
[ 250.389457][ T6085] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.394503][ T6085] gfs2_get_tree+0x4d/0x1e0
[ 250.399269][ T6085] vfs_get_tree+0x88/0x270
[ 250.404000][ T6085] do_new_mount+0x24a/0xa40
[ 250.408903][ T6085] __se_sys_mount+0x2d6/0x3c0
[ 250.413608][ T6085] ? __x64_sys_mount+0xc0/0xc0
[ 250.418576][ T6085] ? lockdep_hardirqs_on+0x94/0x140
[ 250.423969][ T6085] ? __x64_sys_mount+0x1c/0xc0
[ 250.428759][ T6085] do_syscall_64+0x4c/0xa0
[ 250.433189][ T6085] ? clear_bhb_loop+0x30/0x80
[ 250.437895][ T6085] ? clear_bhb_loop+0x30/0x80
[ 250.442728][ T6085] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.448651][ T6085] RIP: 0033:0x7f454a19a38a
[ 250.453101][ T6085] 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
[ 250.472732][ T6085] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.481157][ T6085] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 250.489139][ T6085] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 250.497228][ T6085] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 250.505300][ T6085] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 250.513337][ T6085] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 250.521431][ T6085]
[ 250.524599][ T6085] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.538326][ T6085] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.782164][ T6093] loop1: detected capacity change from 0 to 32768
[ 250.875104][ T6093] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.882638][ T6093] CPU: 0 PID: 6093 Comm: syz.1.429 Not tainted syzkaller #0
[ 250.890019][ T6093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 250.900258][ T6093] Call Trace:
[ 250.903545][ T6093]
[ 250.906491][ T6093] dump_stack_lvl+0x168/0x230
[ 250.911186][ T6093] ? show_regs_print_info+0x20/0x20
[ 250.916487][ T6093] ? load_image+0x3b0/0x3b0
[ 250.921018][ T6093] sysfs_create_dir_ns+0x252/0x280
[ 250.926161][ T6093] ? __lock_acquire+0x7c60/0x7c60
[ 250.931222][ T6093] ? sysfs_warn_dup+0xa0/0xa0
[ 250.935913][ T6093] ? do_raw_spin_unlock+0x11d/0x230
[ 250.941114][ T6093] kobject_add_internal+0x662/0xd00
[ 250.946422][ T6093] kobject_init_and_add+0x122/0x190
[ 250.951775][ T6093] ? lockdep_softirqs_off+0x420/0x420
[ 250.957616][ T6093] ? kobject_add+0x210/0x210
[ 250.962325][ T6093] ? __init_swait_queue_head+0xa5/0x150
[ 250.967967][ T6093] gfs2_sys_fs_add+0x234/0x480
[ 250.972742][ T6093] ? gfs2_recover_set+0x240/0x240
[ 250.977800][ T6093] ? snprintf+0xd7/0x120
[ 250.982057][ T6093] ? __free_pages+0x95/0x1a0
[ 250.986778][ T6093] ? vscnprintf+0x80/0x80
[ 250.991125][ T6093] gfs2_fill_super+0x128d/0x1f50
[ 250.996088][ T6093] ? gfs2_reconfigure+0xcd0/0xcd0
[ 251.001294][ T6093] ? preempt_count_add+0x8d/0x190
[ 251.006348][ T6093] ? sb_set_blocksize+0xa5/0xe0
[ 251.007076][ T6097] loop0: detected capacity change from 0 to 32768
[ 251.011211][ T6093] get_tree_bdev+0x3f1/0x610
[ 251.022193][ T6093] ? gfs2_reconfigure+0xcd0/0xcd0
[ 251.027230][ T6093] gfs2_get_tree+0x4d/0x1e0
[ 251.031840][ T6093] vfs_get_tree+0x88/0x270
[ 251.036273][ T6093] do_new_mount+0x24a/0xa40
[ 251.040802][ T6093] __se_sys_mount+0x2d6/0x3c0
[ 251.045555][ T6093] ? __x64_sys_mount+0xc0/0xc0
[ 251.050348][ T6093] ? lockdep_hardirqs_on+0x94/0x140
[ 251.055826][ T6093] ? __x64_sys_mount+0x1c/0xc0
[ 251.060705][ T6093] do_syscall_64+0x4c/0xa0
[ 251.065137][ T6093] ? clear_bhb_loop+0x30/0x80
[ 251.069840][ T6093] ? clear_bhb_loop+0x30/0x80
[ 251.074522][ T6093] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 251.080421][ T6093] RIP: 0033:0x7f9ea399238a
[ 251.084935][ T6093] 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
[ 251.105066][ T6093] RSP: 002b:00007f9ea2fffe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.113586][ T6093] RAX: ffffffffffffffda RBX: 00007f9ea2fffef0 RCX: 00007f9ea399238a
[ 251.121577][ T6093] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fffeb0
[ 251.129669][ T6093] RBP: 0000200000000400 R08: 00007f9ea2fffef0 R09: 0000000000000000
[ 251.138037][ T6093] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 251.146036][ T6093] R13: 00007f9ea2fffeb0 R14: 00000000000125ed R15: 0000200000000640
[ 251.154161][ T6093]
[ 251.159137][ T6093] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.173083][ T6093] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.202913][ T6097] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.210523][ T6097] CPU: 1 PID: 6097 Comm: syz.0.431 Not tainted syzkaller #0
[ 251.217828][ T6097] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 251.228171][ T6097] Call Trace:
[ 251.231557][ T6097]
[ 251.234500][ T6097] dump_stack_lvl+0x168/0x230
[ 251.239208][ T6097] ? show_regs_print_info+0x20/0x20
[ 251.244522][ T6097] ? load_image+0x3b0/0x3b0
[ 251.249049][ T6097] sysfs_create_dir_ns+0x252/0x280
[ 251.254175][ T6097] ? __lock_acquire+0x7c60/0x7c60
[ 251.259310][ T6097] ? sysfs_warn_dup+0xa0/0xa0
[ 251.264349][ T6097] ? do_raw_spin_unlock+0x11d/0x230
[ 251.269574][ T6097] kobject_add_internal+0x662/0xd00
[ 251.274794][ T6097] kobject_init_and_add+0x122/0x190
[ 251.280013][ T6097] ? lockdep_softirqs_off+0x420/0x420
[ 251.285410][ T6097] ? kobject_add+0x210/0x210
[ 251.290011][ T6097] ? __init_swait_queue_head+0xa5/0x150
[ 251.295827][ T6097] gfs2_sys_fs_add+0x234/0x480
[ 251.300720][ T6097] ? gfs2_recover_set+0x240/0x240
[ 251.305773][ T6097] ? snprintf+0xd7/0x120
[ 251.310020][ T6097] ? __free_pages+0x95/0x1a0
[ 251.314629][ T6097] ? vscnprintf+0x80/0x80
[ 251.319122][ T6097] gfs2_fill_super+0x128d/0x1f50
[ 251.324186][ T6097] ? gfs2_reconfigure+0xcd0/0xcd0
[ 251.329315][ T6097] ? preempt_count_add+0x8d/0x190
[ 251.334573][ T6097] ? sb_set_blocksize+0xa5/0xe0
[ 251.339522][ T6097] get_tree_bdev+0x3f1/0x610
[ 251.344124][ T6097] ? gfs2_reconfigure+0xcd0/0xcd0
[ 251.349166][ T6097] gfs2_get_tree+0x4d/0x1e0
[ 251.353683][ T6097] vfs_get_tree+0x88/0x270
[ 251.358111][ T6097] do_new_mount+0x24a/0xa40
[ 251.362747][ T6097] __se_sys_mount+0x2d6/0x3c0
[ 251.367516][ T6097] ? __x64_sys_mount+0xc0/0xc0
[ 251.372388][ T6097] ? lockdep_hardirqs_on+0x94/0x140
[ 251.377613][ T6097] ? __x64_sys_mount+0x1c/0xc0
[ 251.382481][ T6097] do_syscall_64+0x4c/0xa0
[ 251.386908][ T6097] ? clear_bhb_loop+0x30/0x80
[ 251.391675][ T6097] ? clear_bhb_loop+0x30/0x80
[ 251.396491][ T6097] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 251.402495][ T6097] RIP: 0033:0x7f454a19a38a
[ 251.407030][ T6097] 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
[ 251.426816][ T6097] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.435251][ T6097] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 251.443335][ T6097] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 251.451313][ T6097] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 251.459383][ T6097] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 251.467461][ T6097] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 251.475584][ T6097]
[ 251.479746][ T6097] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.493023][ T6097] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.883252][ T6086] loop5: detected capacity change from 0 to 32768
[ 251.973907][ T6086] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.981510][ T6086] CPU: 1 PID: 6086 Comm: syz.5.426 Not tainted syzkaller #0
[ 251.988893][ T6086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 251.999059][ T6086] Call Trace:
[ 252.002429][ T6086]
[ 252.005587][ T6086] dump_stack_lvl+0x168/0x230
[ 252.010287][ T6086] ? show_regs_print_info+0x20/0x20
[ 252.015508][ T6086] ? load_image+0x3b0/0x3b0
[ 252.020033][ T6086] sysfs_create_dir_ns+0x252/0x280
[ 252.025168][ T6086] ? __lock_acquire+0x7c60/0x7c60
[ 252.030339][ T6086] ? sysfs_warn_dup+0xa0/0xa0
[ 252.035133][ T6086] ? do_raw_spin_unlock+0x11d/0x230
[ 252.040348][ T6086] kobject_add_internal+0x662/0xd00
[ 252.045572][ T6086] kobject_init_and_add+0x122/0x190
[ 252.050931][ T6086] ? lockdep_softirqs_off+0x420/0x420
[ 252.056558][ T6086] ? kobject_add+0x210/0x210
[ 252.061161][ T6086] ? __init_swait_queue_head+0xa5/0x150
[ 252.066766][ T6086] gfs2_sys_fs_add+0x234/0x480
[ 252.071547][ T6086] ? gfs2_recover_set+0x240/0x240
[ 252.076585][ T6086] ? snprintf+0xd7/0x120
[ 252.080841][ T6086] ? __free_pages+0x95/0x1a0
[ 252.085534][ T6086] ? vscnprintf+0x80/0x80
[ 252.089887][ T6086] gfs2_fill_super+0x128d/0x1f50
[ 252.094994][ T6086] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.100132][ T6086] ? preempt_count_add+0x8d/0x190
[ 252.105309][ T6086] ? sb_set_blocksize+0xa5/0xe0
[ 252.110175][ T6086] get_tree_bdev+0x3f1/0x610
[ 252.114800][ T6086] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.119845][ T6086] gfs2_get_tree+0x4d/0x1e0
[ 252.124366][ T6086] vfs_get_tree+0x88/0x270
[ 252.129040][ T6086] do_new_mount+0x24a/0xa40
[ 252.133675][ T6086] __se_sys_mount+0x2d6/0x3c0
[ 252.138461][ T6086] ? __x64_sys_mount+0xc0/0xc0
[ 252.143371][ T6086] ? lockdep_hardirqs_on+0x94/0x140
[ 252.148596][ T6086] ? __x64_sys_mount+0x1c/0xc0
[ 252.153477][ T6086] do_syscall_64+0x4c/0xa0
[ 252.157903][ T6086] ? clear_bhb_loop+0x30/0x80
[ 252.162604][ T6086] ? clear_bhb_loop+0x30/0x80
[ 252.167284][ T6086] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.173180][ T6086] RIP: 0033:0x7eff7626138a
[ 252.177602][ T6086] 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
[ 252.197773][ T6086] RSP: 002b:00007eff758ade68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.206384][ T6086] RAX: ffffffffffffffda RBX: 00007eff758adef0 RCX: 00007eff7626138a
[ 252.214374][ T6086] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758adeb0
[ 252.222463][ T6086] RBP: 0000200000000400 R08: 00007eff758adef0 R09: 0000000000000000
[ 252.230465][ T6086] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.238467][ T6086] R13: 00007eff758adeb0 R14: 00000000000125ed R15: 0000200000000640
[ 252.246475][ T6086]
[ 252.375928][ T6086] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.484637][ T6095] loop4: detected capacity change from 0 to 32768
[ 252.575923][ T6095] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.643952][ T6095] CPU: 1 PID: 6095 Comm: syz.4.430 Not tainted syzkaller #0
[ 252.651377][ T6095] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 252.661602][ T6095] Call Trace:
[ 252.664884][ T6095]
[ 252.667817][ T6095] dump_stack_lvl+0x168/0x230
[ 252.672501][ T6095] ? show_regs_print_info+0x20/0x20
[ 252.677705][ T6095] ? load_image+0x3b0/0x3b0
[ 252.682310][ T6095] sysfs_create_dir_ns+0x252/0x280
[ 252.687452][ T6095] ? __lock_acquire+0x7c60/0x7c60
[ 252.692567][ T6095] ? sysfs_warn_dup+0xa0/0xa0
[ 252.697784][ T6095] ? do_raw_spin_unlock+0x11d/0x230
[ 252.702989][ T6095] kobject_add_internal+0x662/0xd00
[ 252.708301][ T6095] kobject_init_and_add+0x122/0x190
[ 252.713539][ T6095] ? lockdep_softirqs_off+0x420/0x420
[ 252.719021][ T6095] ? kobject_add+0x210/0x210
[ 252.719431][ T6086] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.723628][ T6095] ? __init_swait_queue_head+0xa5/0x150
[ 252.735764][ T6095] gfs2_sys_fs_add+0x234/0x480
[ 252.740599][ T6095] ? gfs2_recover_set+0x240/0x240
[ 252.745819][ T6095] ? snprintf+0xd7/0x120
[ 252.750168][ T6095] ? __free_pages+0x95/0x1a0
[ 252.754776][ T6095] ? vscnprintf+0x80/0x80
[ 252.759131][ T6095] gfs2_fill_super+0x128d/0x1f50
[ 252.764203][ T6095] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.769340][ T6095] ? preempt_count_add+0x8d/0x190
[ 252.774388][ T6095] ? sb_set_blocksize+0xa5/0xe0
[ 252.779444][ T6095] get_tree_bdev+0x3f1/0x610
[ 252.784230][ T6095] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.789369][ T6095] gfs2_get_tree+0x4d/0x1e0
[ 252.793887][ T6095] vfs_get_tree+0x88/0x270
[ 252.798314][ T6095] do_new_mount+0x24a/0xa40
[ 252.802988][ T6095] __se_sys_mount+0x2d6/0x3c0
[ 252.808097][ T6095] ? __x64_sys_mount+0xc0/0xc0
[ 252.812884][ T6095] ? lockdep_hardirqs_on+0x94/0x140
[ 252.818092][ T6095] ? __x64_sys_mount+0x1c/0xc0
[ 252.822862][ T6095] do_syscall_64+0x4c/0xa0
[ 252.827370][ T6095] ? clear_bhb_loop+0x30/0x80
[ 252.832214][ T6095] ? clear_bhb_loop+0x30/0x80
[ 252.836904][ T6095] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.842825][ T6095] RIP: 0033:0x7f000dda438a
[ 252.847253][ T6095] 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
[ 252.867274][ T6095] RSP: 002b:00007f000d3f0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.875781][ T6095] RAX: ffffffffffffffda RBX: 00007f000d3f0ef0 RCX: 00007f000dda438a
[ 252.883759][ T6095] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d3f0eb0
[ 252.891831][ T6095] RBP: 0000200000000400 R08: 00007f000d3f0ef0 R09: 0000000000000000
[ 252.899925][ T6095] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.907989][ T6095] R13: 00007f000d3f0eb0 R14: 00000000000125ed R15: 0000200000000640
[ 252.915984][ T6095]
[ 252.922076][ T4295] Bluetooth: hci5: command 0x0406 tx timeout
[ 253.224510][ T6110] loop5: detected capacity change from 0 to 32768
[ 253.256819][ T6095] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.276328][ T6110] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.284090][ T6110] CPU: 0 PID: 6110 Comm: syz.5.437 Not tainted syzkaller #0
[ 253.291511][ T6110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 253.301666][ T6110] Call Trace:
[ 253.304967][ T6110]
[ 253.307912][ T6110] dump_stack_lvl+0x168/0x230
[ 253.312674][ T6110] ? show_regs_print_info+0x20/0x20
[ 253.317977][ T6110] ? load_image+0x3b0/0x3b0
[ 253.322627][ T6110] sysfs_create_dir_ns+0x252/0x280
[ 253.327797][ T6110] ? __lock_acquire+0x7c60/0x7c60
[ 253.332929][ T6110] ? sysfs_warn_dup+0xa0/0xa0
[ 253.337718][ T6110] ? do_raw_spin_unlock+0x11d/0x230
[ 253.343041][ T6110] kobject_add_internal+0x662/0xd00
[ 253.348262][ T6110] kobject_init_and_add+0x122/0x190
[ 253.353476][ T6110] ? lockdep_softirqs_off+0x420/0x420
[ 253.358872][ T6110] ? kobject_add+0x210/0x210
[ 253.363480][ T6110] ? __init_swait_queue_head+0xa5/0x150
[ 253.369059][ T6110] gfs2_sys_fs_add+0x234/0x480
[ 253.374055][ T6110] ? gfs2_recover_set+0x240/0x240
[ 253.379094][ T6110] ? snprintf+0xd7/0x120
[ 253.383380][ T6110] ? __free_pages+0x95/0x1a0
[ 253.388170][ T6110] ? vscnprintf+0x80/0x80
[ 253.392540][ T6110] gfs2_fill_super+0x128d/0x1f50
[ 253.397608][ T6110] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.402646][ T6110] ? preempt_count_add+0x8d/0x190
[ 253.407814][ T6110] ? sb_set_blocksize+0xa5/0xe0
[ 253.412777][ T6110] get_tree_bdev+0x3f1/0x610
[ 253.417470][ T6110] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.422518][ T6110] gfs2_get_tree+0x4d/0x1e0
[ 253.427136][ T6110] vfs_get_tree+0x88/0x270
[ 253.431776][ T6110] do_new_mount+0x24a/0xa40
[ 253.436306][ T6110] __se_sys_mount+0x2d6/0x3c0
[ 253.441005][ T6110] ? __x64_sys_mount+0xc0/0xc0
[ 253.445822][ T6110] ? lockdep_hardirqs_on+0x94/0x140
[ 253.451124][ T6110] ? __x64_sys_mount+0x1c/0xc0
[ 253.455992][ T6110] do_syscall_64+0x4c/0xa0
[ 253.460439][ T6110] ? clear_bhb_loop+0x30/0x80
[ 253.465133][ T6110] ? clear_bhb_loop+0x30/0x80
[ 253.469895][ T6110] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 253.475931][ T6110] RIP: 0033:0x7eff7626138a
[ 253.480366][ T6110] 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
[ 253.500274][ T6110] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.508707][ T6110] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 253.516688][ T6110] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 253.524676][ T6110] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 253.532830][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 253.540926][ T6110] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 253.548932][ T6110]
[ 253.552989][ T6110] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.555764][ T6114] loop3: detected capacity change from 0 to 32768
[ 253.566245][ T6110] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 253.603798][ T6095] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 253.621499][ T6114] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.629668][ T6114] CPU: 1 PID: 6114 Comm: syz.3.439 Not tainted syzkaller #0
[ 253.636986][ T6114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 253.647424][ T6114] Call Trace:
[ 253.650706][ T6114]
[ 253.653657][ T6114] dump_stack_lvl+0x168/0x230
[ 253.658357][ T6114] ? show_regs_print_info+0x20/0x20
[ 253.663801][ T6114] ? load_image+0x3b0/0x3b0
[ 253.668415][ T6114] sysfs_create_dir_ns+0x252/0x280
[ 253.673545][ T6114] ? __lock_acquire+0x7c60/0x7c60
[ 253.678582][ T6114] ? sysfs_warn_dup+0xa0/0xa0
[ 253.683361][ T6114] ? do_raw_spin_unlock+0x11d/0x230
[ 253.688718][ T6114] kobject_add_internal+0x662/0xd00
[ 253.694111][ T6114] kobject_init_and_add+0x122/0x190
[ 253.699900][ T6114] ? lockdep_softirqs_off+0x420/0x420
[ 253.705491][ T6114] ? kobject_add+0x210/0x210
[ 253.710401][ T6114] ? __init_swait_queue_head+0xa5/0x150
[ 253.716091][ T6114] gfs2_sys_fs_add+0x234/0x480
[ 253.720863][ T6114] ? gfs2_recover_set+0x240/0x240
[ 253.725874][ T6114] ? snprintf+0xd7/0x120
[ 253.730116][ T6114] ? __free_pages+0x95/0x1a0
[ 253.734918][ T6114] ? vscnprintf+0x80/0x80
[ 253.739365][ T6114] gfs2_fill_super+0x128d/0x1f50
[ 253.744402][ T6114] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.749512][ T6114] ? preempt_count_add+0x8d/0x190
[ 253.754540][ T6114] ? sb_set_blocksize+0xa5/0xe0
[ 253.759377][ T6114] get_tree_bdev+0x3f1/0x610
[ 253.763964][ T6114] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.768994][ T6114] gfs2_get_tree+0x4d/0x1e0
[ 253.773606][ T6114] vfs_get_tree+0x88/0x270
[ 253.778103][ T6114] do_new_mount+0x24a/0xa40
[ 253.782682][ T6114] __se_sys_mount+0x2d6/0x3c0
[ 253.787437][ T6114] ? __x64_sys_mount+0xc0/0xc0
[ 253.792413][ T6114] ? lockdep_hardirqs_on+0x94/0x140
[ 253.797799][ T6114] ? __x64_sys_mount+0x1c/0xc0
[ 253.802641][ T6114] do_syscall_64+0x4c/0xa0
[ 253.807151][ T6114] ? clear_bhb_loop+0x30/0x80
[ 253.811896][ T6114] ? clear_bhb_loop+0x30/0x80
[ 253.816581][ T6114] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 253.822461][ T6114] RIP: 0033:0x7f17c050238a
[ 253.826951][ T6114] 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
[ 253.846542][ T6114] RSP: 002b:00007f17bfb6fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.855150][ T6114] RAX: ffffffffffffffda RBX: 00007f17bfb6fef0 RCX: 00007f17c050238a
[ 253.863212][ T6114] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f17bfb6feb0
[ 253.871202][ T6114] RBP: 0000200000000400 R08: 00007f17bfb6fef0 R09: 0000000000000000
[ 253.879251][ T6114] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 253.887205][ T6114] R13: 00007f17bfb6feb0 R14: 00000000000125ed R15: 0000200000000640
[ 253.895173][ T6114]
[ 253.899221][ T6114] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.912723][ T6114] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/09/25 23:54:20 executed programs: 435
[ 254.449620][ T6120] loop5: detected capacity change from 0 to 32768
[ 254.502509][ T6121] loop3: detected capacity change from 0 to 32768
[ 254.504720][ T6117] loop4: detected capacity change from 0 to 32768
[ 254.526272][ T6120] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.534130][ T6120] CPU: 1 PID: 6120 Comm: syz.5.441 Not tainted syzkaller #0
[ 254.541516][ T6120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 254.551696][ T6120] Call Trace:
[ 254.554980][ T6120]
[ 254.557914][ T6120] dump_stack_lvl+0x168/0x230
[ 254.562601][ T6120] ? show_regs_print_info+0x20/0x20
[ 254.567812][ T6120] ? load_image+0x3b0/0x3b0
[ 254.572611][ T6120] sysfs_create_dir_ns+0x252/0x280
[ 254.578006][ T6120] ? __lock_acquire+0x7c60/0x7c60
[ 254.583038][ T6120] ? sysfs_warn_dup+0xa0/0xa0
[ 254.587811][ T6120] ? do_raw_spin_unlock+0x11d/0x230
[ 254.593065][ T6120] kobject_add_internal+0x662/0xd00
[ 254.598561][ T6120] kobject_init_and_add+0x122/0x190
[ 254.603772][ T6120] ? lockdep_softirqs_off+0x420/0x420
[ 254.609177][ T6120] ? kobject_add+0x210/0x210
[ 254.613911][ T6120] ? __init_swait_queue_head+0xa5/0x150
[ 254.619525][ T6120] gfs2_sys_fs_add+0x234/0x480
[ 254.624459][ T6120] ? gfs2_recover_set+0x240/0x240
[ 254.629590][ T6120] ? snprintf+0xd7/0x120
[ 254.633855][ T6120] ? __free_pages+0x95/0x1a0
[ 254.638511][ T6120] ? vscnprintf+0x80/0x80
[ 254.642872][ T6120] gfs2_fill_super+0x128d/0x1f50
[ 254.647855][ T6120] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.652910][ T6120] ? preempt_count_add+0x8d/0x190
[ 254.658394][ T6120] ? sb_set_blocksize+0xa5/0xe0
[ 254.663261][ T6120] get_tree_bdev+0x3f1/0x610
[ 254.667869][ T6120] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.672940][ T6120] gfs2_get_tree+0x4d/0x1e0
[ 254.677718][ T6120] vfs_get_tree+0x88/0x270
[ 254.682251][ T6120] do_new_mount+0x24a/0xa40
[ 254.686773][ T6120] __se_sys_mount+0x2d6/0x3c0
[ 254.691494][ T6120] ? __x64_sys_mount+0xc0/0xc0
[ 254.696272][ T6120] ? lockdep_hardirqs_on+0x94/0x140
[ 254.701581][ T6120] ? __x64_sys_mount+0x1c/0xc0
[ 254.706379][ T6120] do_syscall_64+0x4c/0xa0
[ 254.711132][ T6120] ? clear_bhb_loop+0x30/0x80
[ 254.715835][ T6120] ? clear_bhb_loop+0x30/0x80
[ 254.720521][ T6120] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 254.726623][ T6120] RIP: 0033:0x7eff7626138a
[ 254.731139][ T6120] 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
[ 254.735465][ T6104] loop1: detected capacity change from 0 to 32768
[ 254.751186][ T6120] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.751211][ T6120] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 254.751223][ T6120] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 254.751234][ T6120] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 254.751244][ T6120] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 254.751254][ T6120] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 254.751278][ T6120]
[ 254.752833][ T6120] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.823750][ T6120] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.829908][ T6117] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.837758][ T6117] CPU: 0 PID: 6117 Comm: syz.4.440 Not tainted syzkaller #0
[ 254.845172][ T6117] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 254.855238][ T6117] Call Trace:
[ 254.858525][ T6117]
[ 254.861493][ T6117] dump_stack_lvl+0x168/0x230
[ 254.866199][ T6117] ? show_regs_print_info+0x20/0x20
[ 254.871406][ T6117] ? load_image+0x3b0/0x3b0
[ 254.876045][ T6117] sysfs_create_dir_ns+0x252/0x280
[ 254.881168][ T6117] ? __lock_acquire+0x7c60/0x7c60
[ 254.886310][ T6117] ? sysfs_warn_dup+0xa0/0xa0
[ 254.891106][ T6117] ? do_raw_spin_unlock+0x11d/0x230
[ 254.896328][ T6117] kobject_add_internal+0x662/0xd00
[ 254.901632][ T6117] kobject_init_and_add+0x122/0x190
[ 254.906834][ T6117] ? lockdep_softirqs_off+0x420/0x420
[ 254.912329][ T6117] ? kobject_add+0x210/0x210
[ 254.913579][ T6115] loop0: detected capacity change from 0 to 32768
[ 254.916931][ T6117] ? __init_swait_queue_head+0xa5/0x150
[ 254.916955][ T6117] gfs2_sys_fs_add+0x234/0x480
[ 254.916973][ T6117] ? gfs2_recover_set+0x240/0x240
[ 254.916989][ T6117] ? snprintf+0xd7/0x120
[ 254.917007][ T6117] ? __free_pages+0x95/0x1a0
[ 254.917027][ T6117] ? vscnprintf+0x80/0x80
[ 254.952443][ T6117] gfs2_fill_super+0x128d/0x1f50
[ 254.957621][ T6117] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.962789][ T6117] ? preempt_count_add+0x8d/0x190
[ 254.967821][ T6117] ? sb_set_blocksize+0xa5/0xe0
[ 254.973020][ T6117] get_tree_bdev+0x3f1/0x610
[ 254.977709][ T6117] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.983293][ T6117] gfs2_get_tree+0x4d/0x1e0
[ 254.987812][ T6117] vfs_get_tree+0x88/0x270
[ 254.992318][ T6117] do_new_mount+0x24a/0xa40
[ 254.996864][ T6117] __se_sys_mount+0x2d6/0x3c0
[ 255.001568][ T6117] ? __x64_sys_mount+0xc0/0xc0
[ 255.006336][ T6117] ? lockdep_hardirqs_on+0x94/0x140
[ 255.011575][ T6117] ? __x64_sys_mount+0x1c/0xc0
[ 255.016345][ T6117] do_syscall_64+0x4c/0xa0
[ 255.020760][ T6117] ? clear_bhb_loop+0x30/0x80
[ 255.025431][ T6117] ? clear_bhb_loop+0x30/0x80
[ 255.030210][ T6117] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.036105][ T6117] RIP: 0033:0x7f000dda438a
[ 255.040639][ T6117] 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
[ 255.061302][ T6117] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.069749][ T6117] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 255.077818][ T6117] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 255.085788][ T6117] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 255.094157][ T6117] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 255.102476][ T6117] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 255.110630][ T6117]
[ 255.113937][ T6117] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.127288][ T6117] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.149252][ T6115] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.156988][ T6115] CPU: 0 PID: 6115 Comm: syz.0.438 Not tainted syzkaller #0
[ 255.164672][ T6115] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 255.174831][ T6115] Call Trace:
[ 255.178339][ T6115]
[ 255.181286][ T6115] dump_stack_lvl+0x168/0x230
[ 255.186073][ T6115] ? show_regs_print_info+0x20/0x20
[ 255.191373][ T6115] ? load_image+0x3b0/0x3b0
[ 255.195940][ T6115] sysfs_create_dir_ns+0x252/0x280
[ 255.201456][ T6115] ? __lock_acquire+0x7c60/0x7c60
[ 255.206719][ T6115] ? sysfs_warn_dup+0xa0/0xa0
[ 255.211614][ T6115] ? do_raw_spin_unlock+0x11d/0x230
[ 255.216840][ T6115] kobject_add_internal+0x662/0xd00
[ 255.222169][ T6115] kobject_init_and_add+0x122/0x190
[ 255.227774][ T6115] ? lockdep_softirqs_off+0x420/0x420
[ 255.233276][ T6115] ? kobject_add+0x210/0x210
[ 255.237969][ T6115] ? __init_swait_queue_head+0xa5/0x150
[ 255.243897][ T6115] gfs2_sys_fs_add+0x234/0x480
[ 255.248855][ T6115] ? gfs2_recover_set+0x240/0x240
[ 255.253899][ T6115] ? snprintf+0xd7/0x120
[ 255.258270][ T6115] ? __free_pages+0x95/0x1a0
[ 255.262966][ T6115] ? vscnprintf+0x80/0x80
[ 255.267313][ T6115] gfs2_fill_super+0x128d/0x1f50
[ 255.272271][ T6115] ? gfs2_reconfigure+0xcd0/0xcd0
[ 255.277289][ T6115] ? preempt_count_add+0x8d/0x190
[ 255.282397][ T6115] ? sb_set_blocksize+0xa5/0xe0
[ 255.287261][ T6115] get_tree_bdev+0x3f1/0x610
[ 255.291961][ T6115] ? gfs2_reconfigure+0xcd0/0xcd0
[ 255.297133][ T6115] gfs2_get_tree+0x4d/0x1e0
[ 255.301742][ T6115] vfs_get_tree+0x88/0x270
[ 255.306249][ T6115] do_new_mount+0x24a/0xa40
[ 255.310782][ T6115] __se_sys_mount+0x2d6/0x3c0
[ 255.315470][ T6115] ? __x64_sys_mount+0xc0/0xc0
[ 255.320369][ T6115] ? lockdep_hardirqs_on+0x94/0x140
[ 255.325649][ T6115] ? __x64_sys_mount+0x1c/0xc0
[ 255.330427][ T6115] do_syscall_64+0x4c/0xa0
[ 255.335044][ T6115] ? clear_bhb_loop+0x30/0x80
[ 255.339748][ T6115] ? clear_bhb_loop+0x30/0x80
[ 255.344424][ T6115] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.350540][ T6115] RIP: 0033:0x7f454a19a38a
[ 255.355130][ T6115] 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
[ 255.375271][ T6115] RSP: 002b:00007f45497e6e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.383869][ T6115] RAX: ffffffffffffffda RBX: 00007f45497e6ef0 RCX: 00007f454a19a38a
[ 255.392042][ T6115] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f45497e6eb0
[ 255.400131][ T6115] RBP: 0000200000000400 R08: 00007f45497e6ef0 R09: 0000000000000000
[ 255.408202][ T6115] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 255.416178][ T6115] R13: 00007f45497e6eb0 R14: 00000000000125ed R15: 0000200000000640
[ 255.424605][ T6115]
[ 255.429737][ T6115] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.434636][ T6121] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.450663][ T6121] CPU: 0 PID: 6121 Comm: syz.3.442 Not tainted syzkaller #0
[ 255.457954][ T6121] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 255.468385][ T6121] Call Trace:
[ 255.471681][ T6121]
[ 255.474616][ T6121] dump_stack_lvl+0x168/0x230
[ 255.479304][ T6121] ? show_regs_print_info+0x20/0x20
[ 255.484503][ T6121] ? load_image+0x3b0/0x3b0
[ 255.489020][ T6121] sysfs_create_dir_ns+0x252/0x280
[ 255.494131][ T6121] ? __lock_acquire+0x7c60/0x7c60
[ 255.499158][ T6121] ? sysfs_warn_dup+0xa0/0xa0
[ 255.503846][ T6121] ? do_raw_spin_unlock+0x11d/0x230
[ 255.509063][ T6121] kobject_add_internal+0x662/0xd00
[ 255.514453][ T6121] kobject_init_and_add+0x122/0x190
[ 255.519760][ T6121] ? lockdep_softirqs_off+0x420/0x420
[ 255.525332][ T6121] ? kobject_add+0x210/0x210
[ 255.530079][ T6121] ? __init_swait_queue_head+0xa5/0x150
[ 255.535696][ T6121] gfs2_sys_fs_add+0x234/0x480
[ 255.540673][ T6121] ? gfs2_recover_set+0x240/0x240
[ 255.545804][ T6121] ? snprintf+0xd7/0x120
[ 255.550220][ T6121] ? __free_pages+0x95/0x1a0
[ 255.554828][ T6121] ? vscnprintf+0x80/0x80
[ 255.559181][ T6121] gfs2_fill_super+0x128d/0x1f50
[ 255.564162][ T6121] ? gfs2_reconfigure+0xcd0/0xcd0
[ 255.569209][ T6121] ? preempt_count_add+0x8d/0x190
[ 255.574425][ T6121] ? sb_set_blocksize+0xa5/0xe0
[ 255.579408][ T6121] get_tree_bdev+0x3f1/0x610
[ 255.584021][ T6121] ? gfs2_reconfigure+0xcd0/0xcd0
[ 255.589202][ T6121] gfs2_get_tree+0x4d/0x1e0
[ 255.591742][ T6115] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.593813][ T6121] vfs_get_tree+0x88/0x270
[ 255.593839][ T6121] do_new_mount+0x24a/0xa40
[ 255.593862][ T6121] __se_sys_mount+0x2d6/0x3c0
[ 255.593882][ T6121] ? __x64_sys_mount+0xc0/0xc0
[ 255.593901][ T6121] ? lockdep_hardirqs_on+0x94/0x140
[ 255.593917][ T6121] ? __x64_sys_mount+0x1c/0xc0
[ 255.593935][ T6121] do_syscall_64+0x4c/0xa0
[ 255.593947][ T6121] ? clear_bhb_loop+0x30/0x80
[ 255.593961][ T6121] ? clear_bhb_loop+0x30/0x80
[ 255.593976][ T6121] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.593992][ T6121] RIP: 0033:0x7f17c050238a
[ 255.594009][ T6121] 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
[ 255.673133][ T6121] RSP: 002b:00007f17bfb6fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.681653][ T6121] RAX: ffffffffffffffda RBX: 00007f17bfb6fef0 RCX: 00007f17c050238a
[ 255.689708][ T6121] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f17bfb6feb0
[ 255.697895][ T6121] RBP: 0000200000000400 R08: 00007f17bfb6fef0 R09: 0000000000000000
[ 255.706213][ T6121] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 255.714536][ T6121] R13: 00007f17bfb6feb0 R14: 00000000000125ed R15: 0000200000000640
[ 255.722532][ T6121]
[ 255.730053][ T6121] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.744248][ T1421] ieee802154 phy0 wpan0: encryption failed: -22
[ 255.744298][ T1421] ieee802154 phy1 wpan1: encryption failed: -22
[ 255.757869][ T6121] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.009069][ T6123] loop5: detected capacity change from 0 to 32768
[ 256.158144][ T6123] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.165699][ T6123] CPU: 1 PID: 6123 Comm: syz.5.444 Not tainted syzkaller #0
[ 256.173171][ T6123] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 256.183345][ T6123] Call Trace:
[ 256.186628][ T6123]
[ 256.189589][ T6123] dump_stack_lvl+0x168/0x230
[ 256.194289][ T6123] ? show_regs_print_info+0x20/0x20
[ 256.199497][ T6123] ? load_image+0x3b0/0x3b0
[ 256.204109][ T6123] sysfs_create_dir_ns+0x252/0x280
[ 256.206205][ T6125] loop1: detected capacity change from 0 to 32768
[ 256.209455][ T6123] ? __lock_acquire+0x7c60/0x7c60
[ 256.221090][ T6123] ? sysfs_warn_dup+0xa0/0xa0
[ 256.225793][ T6123] ? do_raw_spin_unlock+0x11d/0x230
[ 256.231040][ T6123] kobject_add_internal+0x662/0xd00
[ 256.236304][ T6123] kobject_init_and_add+0x122/0x190
[ 256.241514][ T6123] ? lockdep_softirqs_off+0x420/0x420
[ 256.247170][ T6123] ? kobject_add+0x210/0x210
[ 256.251790][ T6123] ? __init_swait_queue_head+0xa5/0x150
[ 256.257344][ T6123] gfs2_sys_fs_add+0x234/0x480
[ 256.262120][ T6123] ? gfs2_recover_set+0x240/0x240
[ 256.267288][ T6123] ? snprintf+0xd7/0x120
[ 256.271537][ T6123] ? __free_pages+0x95/0x1a0
[ 256.276138][ T6123] ? vscnprintf+0x80/0x80
[ 256.280499][ T6123] gfs2_fill_super+0x128d/0x1f50
[ 256.285464][ T6123] ? gfs2_reconfigure+0xcd0/0xcd0
[ 256.290510][ T6123] ? preempt_count_add+0x8d/0x190
[ 256.295686][ T6123] ? sb_set_blocksize+0xa5/0xe0
[ 256.300558][ T6123] get_tree_bdev+0x3f1/0x610
[ 256.305165][ T6123] ? gfs2_reconfigure+0xcd0/0xcd0
[ 256.310215][ T6123] gfs2_get_tree+0x4d/0x1e0
[ 256.314948][ T6123] vfs_get_tree+0x88/0x270
[ 256.319660][ T6123] do_new_mount+0x24a/0xa40
[ 256.324184][ T6123] __se_sys_mount+0x2d6/0x3c0
[ 256.328881][ T6123] ? __x64_sys_mount+0xc0/0xc0
[ 256.333665][ T6123] ? lockdep_hardirqs_on+0x94/0x140
[ 256.339051][ T6123] ? __x64_sys_mount+0x1c/0xc0
[ 256.343826][ T6123] do_syscall_64+0x4c/0xa0
[ 256.348258][ T6123] ? clear_bhb_loop+0x30/0x80
[ 256.353042][ T6123] ? clear_bhb_loop+0x30/0x80
[ 256.357739][ T6123] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 256.363921][ T6123] RIP: 0033:0x7eff7626138a
[ 256.368353][ T6123] 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
[ 256.388017][ T6123] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.396452][ T6123] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 256.404533][ T6123] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 256.412781][ T6123] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 256.420888][ T6123] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 256.429015][ T6123] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 256.437111][ T6123]
[ 256.441651][ T6123] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.455329][ T6123] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.558302][ T6128] loop4: detected capacity change from 0 to 32768
[ 256.570089][ T6125] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.577670][ T6125] CPU: 0 PID: 6125 Comm: syz.1.443 Not tainted syzkaller #0
[ 256.585051][ T6125] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 256.595125][ T6125] Call Trace:
[ 256.598547][ T6125]
[ 256.601482][ T6125] dump_stack_lvl+0x168/0x230
[ 256.606179][ T6125] ? show_regs_print_info+0x20/0x20
[ 256.611641][ T6125] ? load_image+0x3b0/0x3b0
[ 256.616159][ T6125] sysfs_create_dir_ns+0x252/0x280
[ 256.621378][ T6125] ? __lock_acquire+0x7c60/0x7c60
[ 256.626506][ T6125] ? sysfs_warn_dup+0xa0/0xa0
[ 256.631294][ T6125] ? do_raw_spin_unlock+0x11d/0x230
[ 256.636511][ T6125] kobject_add_internal+0x662/0xd00
[ 256.641732][ T6125] kobject_init_and_add+0x122/0x190
[ 256.647056][ T6125] ? lockdep_softirqs_off+0x420/0x420
[ 256.652565][ T6125] ? kobject_add+0x210/0x210
[ 256.657191][ T6125] ? __init_swait_queue_head+0xa5/0x150
[ 256.662849][ T6125] gfs2_sys_fs_add+0x234/0x480
[ 256.667829][ T6125] ? gfs2_recover_set+0x240/0x240
[ 256.672874][ T6125] ? snprintf+0xd7/0x120
[ 256.677225][ T6125] ? __free_pages+0x95/0x1a0
[ 256.682161][ T6125] ? vscnprintf+0x80/0x80
[ 256.687135][ T6125] gfs2_fill_super+0x128d/0x1f50
[ 256.692279][ T6125] ? gfs2_reconfigure+0xcd0/0xcd0
[ 256.697395][ T6125] ? preempt_count_add+0x8d/0x190
[ 256.702534][ T6125] ? sb_set_blocksize+0xa5/0xe0
[ 256.707511][ T6125] get_tree_bdev+0x3f1/0x610
[ 256.712230][ T6125] ? gfs2_reconfigure+0xcd0/0xcd0
[ 256.717677][ T6125] gfs2_get_tree+0x4d/0x1e0
[ 256.722293][ T6125] vfs_get_tree+0x88/0x270
[ 256.726721][ T6125] do_new_mount+0x24a/0xa40
[ 256.731328][ T6125] __se_sys_mount+0x2d6/0x3c0
[ 256.736013][ T6125] ? __x64_sys_mount+0xc0/0xc0
[ 256.740811][ T6125] ? lockdep_hardirqs_on+0x94/0x140
[ 256.746018][ T6125] ? __x64_sys_mount+0x1c/0xc0
[ 256.750795][ T6125] do_syscall_64+0x4c/0xa0
[ 256.752449][ T6129] loop3: detected capacity change from 0 to 32768
[ 256.755246][ T6125] ? clear_bhb_loop+0x30/0x80
[ 256.755266][ T6125] ? clear_bhb_loop+0x30/0x80
[ 256.755281][ T6125] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 256.755297][ T6125] RIP: 0033:0x7f9ea399238a
[ 256.755313][ T6125] 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
[ 256.802672][ T6125] RSP: 002b:00007f9ea2fffe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.811234][ T6125] RAX: ffffffffffffffda RBX: 00007f9ea2fffef0 RCX: 00007f9ea399238a
[ 256.819478][ T6125] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fffeb0
[ 256.827567][ T6125] RBP: 0000200000000400 R08: 00007f9ea2fffef0 R09: 0000000000000000
[ 256.836360][ T6125] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 256.845397][ T6125] R13: 00007f9ea2fffeb0 R14: 00000000000125ed R15: 0000200000000640
[ 256.853522][ T6125]
[ 256.856857][ T6125] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.870221][ T6125] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.103840][ T6128] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.112058][ T6128] CPU: 1 PID: 6128 Comm: syz.4.445 Not tainted syzkaller #0
[ 257.119660][ T6128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 257.129813][ T6128] Call Trace:
[ 257.133383][ T6128]
[ 257.136600][ T6128] dump_stack_lvl+0x168/0x230
[ 257.141304][ T6128] ? show_regs_print_info+0x20/0x20
[ 257.146688][ T6128] ? load_image+0x3b0/0x3b0
[ 257.151298][ T6128] sysfs_create_dir_ns+0x252/0x280
[ 257.156417][ T6128] ? __lock_acquire+0x7c60/0x7c60
[ 257.161633][ T6128] ? sysfs_warn_dup+0xa0/0xa0
[ 257.166691][ T6128] ? do_raw_spin_unlock+0x11d/0x230
[ 257.171997][ T6128] kobject_add_internal+0x662/0xd00
[ 257.177212][ T6128] kobject_init_and_add+0x122/0x190
[ 257.180920][ T6133] loop0: detected capacity change from 0 to 32768
[ 257.182425][ T6128] ? lockdep_softirqs_off+0x420/0x420
[ 257.193495][ T6129] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.194644][ T6128] ? kobject_add+0x210/0x210
[ 257.194672][ T6128] ? __init_swait_queue_head+0xa5/0x150
[ 257.194693][ T6128] gfs2_sys_fs_add+0x234/0x480
[ 257.194711][ T6128] ? gfs2_recover_set+0x240/0x240
[ 257.194727][ T6128] ? snprintf+0xd7/0x120
[ 257.194744][ T6128] ? __free_pages+0x95/0x1a0
[ 257.194765][ T6128] ? vscnprintf+0x80/0x80
[ 257.194794][ T6128] gfs2_fill_super+0x128d/0x1f50
[ 257.194826][ T6128] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.194846][ T6128] ? preempt_count_add+0x8d/0x190
[ 257.194876][ T6128] ? sb_set_blocksize+0xa5/0xe0
[ 257.194897][ T6128] get_tree_bdev+0x3f1/0x610
[ 257.194916][ T6128] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.194936][ T6128] gfs2_get_tree+0x4d/0x1e0
[ 257.194957][ T6128] vfs_get_tree+0x88/0x270
[ 257.194976][ T6128] do_new_mount+0x24a/0xa40
[ 257.195001][ T6128] __se_sys_mount+0x2d6/0x3c0
[ 257.195024][ T6128] ? __x64_sys_mount+0xc0/0xc0
[ 257.195045][ T6128] ? lockdep_hardirqs_on+0x94/0x140
[ 257.195062][ T6128] ? __x64_sys_mount+0x1c/0xc0
[ 257.195082][ T6128] do_syscall_64+0x4c/0xa0
[ 257.195105][ T6128] ? clear_bhb_loop+0x30/0x80
[ 257.195120][ T6128] ? clear_bhb_loop+0x30/0x80
[ 257.312451][ T6128] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.318462][ T6128] RIP: 0033:0x7f000dda438a
[ 257.322968][ T6128] 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
[ 257.342653][ T6128] RSP: 002b:00007f000d411e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.351060][ T6128] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 257.359109][ T6128] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 257.367165][ T6128] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 257.375299][ T6128] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 257.383368][ T6128] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 257.391380][ T6128]
[ 257.394403][ T6129] CPU: 0 PID: 6129 Comm: syz.3.446 Not tainted syzkaller #0
[ 257.395180][ T6128] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.401805][ T6129] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 257.415923][ T6128] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.425714][ T6129] Call Trace:
[ 257.425731][ T6129]
[ 257.425741][ T6129] dump_stack_lvl+0x168/0x230
[ 257.425767][ T6129] ? show_regs_print_info+0x20/0x20
[ 257.425785][ T6129] ? load_image+0x3b0/0x3b0
[ 257.425809][ T6129] sysfs_create_dir_ns+0x252/0x280
[ 257.458201][ T6129] ? __lock_acquire+0x7c60/0x7c60
[ 257.463244][ T6129] ? sysfs_warn_dup+0xa0/0xa0
[ 257.467948][ T6129] ? do_raw_spin_unlock+0x11d/0x230
[ 257.473217][ T6129] kobject_add_internal+0x662/0xd00
[ 257.478423][ T6129] kobject_init_and_add+0x122/0x190
[ 257.480836][ T6132] loop5: detected capacity change from 0 to 32768
[ 257.483656][ T6129] ? lockdep_softirqs_off+0x420/0x420
[ 257.495528][ T6129] ? kobject_add+0x210/0x210
[ 257.500146][ T6129] ? __init_swait_queue_head+0xa5/0x150
[ 257.505713][ T6129] gfs2_sys_fs_add+0x234/0x480
[ 257.510514][ T6129] ? gfs2_recover_set+0x240/0x240
[ 257.515656][ T6129] ? snprintf+0xd7/0x120
[ 257.520121][ T6129] ? __free_pages+0x95/0x1a0
[ 257.524927][ T6129] ? vscnprintf+0x80/0x80
[ 257.529380][ T6129] gfs2_fill_super+0x128d/0x1f50
[ 257.534353][ T6129] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.539407][ T6129] ? preempt_count_add+0x8d/0x190
[ 257.544636][ T6129] ? sb_set_blocksize+0xa5/0xe0
[ 257.549608][ T6129] get_tree_bdev+0x3f1/0x610
[ 257.554399][ T6129] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.559556][ T6129] gfs2_get_tree+0x4d/0x1e0
[ 257.564254][ T6129] vfs_get_tree+0x88/0x270
[ 257.568700][ T6129] do_new_mount+0x24a/0xa40
[ 257.573768][ T6129] __se_sys_mount+0x2d6/0x3c0
[ 257.578574][ T6129] ? __x64_sys_mount+0xc0/0xc0
[ 257.583492][ T6129] ? lockdep_hardirqs_on+0x94/0x140
[ 257.588706][ T6129] ? __x64_sys_mount+0x1c/0xc0
[ 257.593864][ T6129] do_syscall_64+0x4c/0xa0
[ 257.598300][ T6129] ? clear_bhb_loop+0x30/0x80
[ 257.603003][ T6129] ? clear_bhb_loop+0x30/0x80
[ 257.607803][ T6129] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.613713][ T6129] RIP: 0033:0x7f17c050238a
[ 257.618140][ T6129] 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
[ 257.638025][ T6129] RSP: 002b:00007f17bfb6fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.646662][ T6129] RAX: ffffffffffffffda RBX: 00007f17bfb6fef0 RCX: 00007f17c050238a
[ 257.654651][ T6129] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f17bfb6feb0
[ 257.662730][ T6129] RBP: 0000200000000400 R08: 00007f17bfb6fef0 R09: 0000000000000000
[ 257.671244][ T6129] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 257.679218][ T6129] R13: 00007f17bfb6feb0 R14: 00000000000125ed R15: 0000200000000640
[ 257.687481][ T6129]
[ 257.691501][ T6129] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.704980][ T6129] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.742236][ T6133] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.749872][ T6133] CPU: 0 PID: 6133 Comm: syz.0.448 Not tainted syzkaller #0
[ 257.757371][ T6133] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 257.767525][ T6133] Call Trace:
[ 257.770832][ T6133]
[ 257.773762][ T6133] dump_stack_lvl+0x168/0x230
[ 257.778536][ T6133] ? show_regs_print_info+0x20/0x20
[ 257.783830][ T6133] ? load_image+0x3b0/0x3b0
[ 257.788350][ T6133] sysfs_create_dir_ns+0x252/0x280
[ 257.793473][ T6133] ? __lock_acquire+0x7c60/0x7c60
[ 257.798766][ T6133] ? sysfs_warn_dup+0xa0/0xa0
[ 257.803478][ T6133] ? do_raw_spin_unlock+0x11d/0x230
[ 257.808816][ T6133] kobject_add_internal+0x662/0xd00
[ 257.814025][ T6133] kobject_init_and_add+0x122/0x190
[ 257.819223][ T6133] ? lockdep_softirqs_off+0x420/0x420
[ 257.824777][ T6133] ? kobject_add+0x210/0x210
[ 257.829381][ T6133] ? __init_swait_queue_head+0xa5/0x150
[ 257.834943][ T6133] gfs2_sys_fs_add+0x234/0x480
[ 257.839724][ T6133] ? gfs2_recover_set+0x240/0x240
[ 257.844762][ T6133] ? snprintf+0xd7/0x120
[ 257.849098][ T6133] ? __free_pages+0x95/0x1a0
[ 257.853692][ T6133] ? vscnprintf+0x80/0x80
[ 257.858028][ T6133] gfs2_fill_super+0x128d/0x1f50
[ 257.862989][ T6133] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.868016][ T6133] ? preempt_count_add+0x8d/0x190
[ 257.873058][ T6133] ? sb_set_blocksize+0xa5/0xe0
[ 257.877930][ T6133] get_tree_bdev+0x3f1/0x610
[ 257.882711][ T6133] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.887843][ T6133] gfs2_get_tree+0x4d/0x1e0
[ 257.892361][ T6133] vfs_get_tree+0x88/0x270
[ 257.896878][ T6133] do_new_mount+0x24a/0xa40
[ 257.901406][ T6133] __se_sys_mount+0x2d6/0x3c0
[ 257.906138][ T6133] ? __x64_sys_mount+0xc0/0xc0
[ 257.911066][ T6133] ? lockdep_hardirqs_on+0x94/0x140
[ 257.916271][ T6133] ? __x64_sys_mount+0x1c/0xc0
[ 257.921058][ T6133] do_syscall_64+0x4c/0xa0
[ 257.925486][ T6133] ? clear_bhb_loop+0x30/0x80
[ 257.930175][ T6133] ? clear_bhb_loop+0x30/0x80
[ 257.934906][ T6133] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.940813][ T6133] RIP: 0033:0x7f454a19a38a
[ 257.945236][ T6133] 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
[ 257.965397][ T6133] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.973843][ T6133] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 257.981925][ T6133] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 257.990055][ T6133] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 257.998047][ T6133] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 258.006131][ T6133] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 258.014385][ T6133]
[ 258.019004][ T6133] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.033214][ T6133] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.116841][ T6132] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.124447][ T6132] CPU: 0 PID: 6132 Comm: syz.5.447 Not tainted syzkaller #0
[ 258.131833][ T6132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 258.141901][ T6132] Call Trace:
[ 258.145196][ T6132]
[ 258.148139][ T6132] dump_stack_lvl+0x168/0x230
[ 258.152832][ T6132] ? show_regs_print_info+0x20/0x20
[ 258.158069][ T6132] ? load_image+0x3b0/0x3b0
[ 258.162594][ T6132] sysfs_create_dir_ns+0x252/0x280
[ 258.167726][ T6132] ? __lock_acquire+0x7c60/0x7c60
[ 258.172758][ T6132] ? sysfs_warn_dup+0xa0/0xa0
[ 258.177444][ T6132] ? do_raw_spin_unlock+0x11d/0x230
[ 258.182743][ T6132] kobject_add_internal+0x662/0xd00
[ 258.187959][ T6132] kobject_init_and_add+0x122/0x190
[ 258.193165][ T6132] ? lockdep_softirqs_off+0x420/0x420
[ 258.198545][ T6132] ? kobject_add+0x210/0x210
[ 258.203237][ T6132] ? __init_swait_queue_head+0xa5/0x150
[ 258.208804][ T6132] gfs2_sys_fs_add+0x234/0x480
[ 258.213711][ T6132] ? gfs2_recover_set+0x240/0x240
[ 258.218869][ T6132] ? snprintf+0xd7/0x120
[ 258.223124][ T6132] ? __free_pages+0x95/0x1a0
[ 258.227719][ T6132] ? vscnprintf+0x80/0x80
[ 258.232103][ T6132] gfs2_fill_super+0x128d/0x1f50
[ 258.237230][ T6132] ? gfs2_reconfigure+0xcd0/0xcd0
[ 258.242281][ T6132] ? preempt_count_add+0x8d/0x190
[ 258.247339][ T6132] ? sb_set_blocksize+0xa5/0xe0
[ 258.252209][ T6132] get_tree_bdev+0x3f1/0x610
[ 258.256925][ T6132] ? gfs2_reconfigure+0xcd0/0xcd0
[ 258.262056][ T6132] gfs2_get_tree+0x4d/0x1e0
[ 258.266663][ T6132] vfs_get_tree+0x88/0x270
[ 258.271095][ T6132] do_new_mount+0x24a/0xa40
[ 258.275624][ T6132] __se_sys_mount+0x2d6/0x3c0
[ 258.280320][ T6132] ? __x64_sys_mount+0xc0/0xc0
[ 258.285099][ T6132] ? lockdep_hardirqs_on+0x94/0x140
[ 258.290313][ T6132] ? __x64_sys_mount+0x1c/0xc0
[ 258.295097][ T6132] do_syscall_64+0x4c/0xa0
[ 258.299541][ T6132] ? clear_bhb_loop+0x30/0x80
[ 258.304326][ T6132] ? clear_bhb_loop+0x30/0x80
[ 258.309224][ T6132] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 258.315130][ T6132] RIP: 0033:0x7eff7626138a
[ 258.319555][ T6132] 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
[ 258.339586][ T6132] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.348117][ T6132] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 258.356218][ T6132] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 258.364198][ T6132] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 258.372187][ T6132] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 258.380235][ T6132] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 258.388219][ T6132]
[ 258.392249][ T6132] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.406201][ T6132] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.563513][ T6137] loop1: detected capacity change from 0 to 32768
[ 258.623899][ T6139] loop0: detected capacity change from 0 to 32768
[ 258.662601][ T6137] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.670102][ T6137] CPU: 0 PID: 6137 Comm: syz.1.450 Not tainted syzkaller #0
[ 258.677499][ T6137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 258.688013][ T6137] Call Trace:
[ 258.691339][ T6137]
[ 258.694281][ T6137] dump_stack_lvl+0x168/0x230
[ 258.699063][ T6137] ? show_regs_print_info+0x20/0x20
[ 258.704544][ T6137] ? load_image+0x3b0/0x3b0
[ 258.709259][ T6137] sysfs_create_dir_ns+0x252/0x280
[ 258.714523][ T6137] ? __lock_acquire+0x7c60/0x7c60
[ 258.719741][ T6137] ? sysfs_warn_dup+0xa0/0xa0
[ 258.724453][ T6137] ? do_raw_spin_unlock+0x11d/0x230
[ 258.729668][ T6137] kobject_add_internal+0x662/0xd00
[ 258.734994][ T6137] kobject_init_and_add+0x122/0x190
[ 258.740196][ T6137] ? lockdep_softirqs_off+0x420/0x420
[ 258.745570][ T6137] ? kobject_add+0x210/0x210
[ 258.750175][ T6137] ? __init_swait_queue_head+0xa5/0x150
[ 258.755731][ T6137] gfs2_sys_fs_add+0x234/0x480
[ 258.760547][ T6137] ? gfs2_recover_set+0x240/0x240
[ 258.765585][ T6137] ? snprintf+0xd7/0x120
[ 258.769837][ T6137] ? __free_pages+0x95/0x1a0
[ 258.774451][ T6137] ? vscnprintf+0x80/0x80
[ 258.778899][ T6137] gfs2_fill_super+0x128d/0x1f50
[ 258.783954][ T6137] ? gfs2_reconfigure+0xcd0/0xcd0
[ 258.789289][ T6137] ? preempt_count_add+0x8d/0x190
[ 258.794544][ T6137] ? sb_set_blocksize+0xa5/0xe0
[ 258.799414][ T6137] get_tree_bdev+0x3f1/0x610
[ 258.804023][ T6137] ? gfs2_reconfigure+0xcd0/0xcd0
[ 258.809066][ T6137] gfs2_get_tree+0x4d/0x1e0
[ 258.813687][ T6137] vfs_get_tree+0x88/0x270
[ 258.818121][ T6137] do_new_mount+0x24a/0xa40
[ 258.822644][ T6137] __se_sys_mount+0x2d6/0x3c0
[ 258.827339][ T6137] ? __x64_sys_mount+0xc0/0xc0
[ 258.832111][ T6137] ? lockdep_hardirqs_on+0x94/0x140
[ 258.837307][ T6137] ? __x64_sys_mount+0x1c/0xc0
[ 258.842083][ T6137] do_syscall_64+0x4c/0xa0
[ 258.846499][ T6137] ? clear_bhb_loop+0x30/0x80
[ 258.851183][ T6137] ? clear_bhb_loop+0x30/0x80
[ 258.855862][ T6137] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 258.861974][ T6137] RIP: 0033:0x7f9ea399238a
[ 258.866389][ T6137] 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
[ 258.886345][ T6137] RSP: 002b:00007f9ea2fffe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.890429][ T6141] loop3: detected capacity change from 0 to 32768
[ 258.895483][ T6137] RAX: ffffffffffffffda RBX: 00007f9ea2fffef0 RCX: 00007f9ea399238a
[ 258.895498][ T6137] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fffeb0
[ 258.895508][ T6137] RBP: 0000200000000400 R08: 00007f9ea2fffef0 R09: 0000000000000000
[ 258.895518][ T6137] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 258.895528][ T6137] R13: 00007f9ea2fffeb0 R14: 00000000000125ed R15: 0000200000000640
[ 258.895552][ T6137]
[ 258.896886][ T6137] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.916347][ T6139] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.918630][ T6137] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.927310][ T6139] CPU: 1 PID: 6139 Comm: syz.0.451 Not tainted syzkaller #0
[ 258.966936][ T27] INFO: task syz.2.36:5091 blocked for more than 143 seconds.
[ 258.967050][ T6139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 258.967063][ T6139] Call Trace:
[ 258.967069][ T6139]
[ 259.005096][ T6139] dump_stack_lvl+0x168/0x230
[ 259.010027][ T6139] ? show_regs_print_info+0x20/0x20
[ 259.015253][ T6139] ? load_image+0x3b0/0x3b0
[ 259.019878][ T6139] sysfs_create_dir_ns+0x252/0x280
[ 259.025201][ T6139] ? __lock_acquire+0x7c60/0x7c60
[ 259.030254][ T6139] ? sysfs_warn_dup+0xa0/0xa0
[ 259.035232][ T6139] ? do_raw_spin_unlock+0x11d/0x230
[ 259.040448][ T6139] kobject_add_internal+0x662/0xd00
[ 259.045689][ T6139] kobject_init_and_add+0x122/0x190
[ 259.051543][ T6139] ? lockdep_softirqs_off+0x420/0x420
[ 259.057045][ T6139] ? kobject_add+0x210/0x210
[ 259.061844][ T6139] ? __init_swait_queue_head+0xa5/0x150
[ 259.067413][ T6139] gfs2_sys_fs_add+0x234/0x480
[ 259.072192][ T6139] ? gfs2_recover_set+0x240/0x240
[ 259.077249][ T6139] ? snprintf+0xd7/0x120
[ 259.081498][ T6139] ? __free_pages+0x95/0x1a0
[ 259.086093][ T6139] ? vscnprintf+0x80/0x80
[ 259.090433][ T6139] gfs2_fill_super+0x128d/0x1f50
[ 259.095567][ T6139] ? gfs2_reconfigure+0xcd0/0xcd0
[ 259.100632][ T6139] ? preempt_count_add+0x8d/0x190
[ 259.105697][ T6139] ? sb_set_blocksize+0xa5/0xe0
[ 259.110560][ T6139] get_tree_bdev+0x3f1/0x610
[ 259.115180][ T6139] ? gfs2_reconfigure+0xcd0/0xcd0
[ 259.120220][ T6139] gfs2_get_tree+0x4d/0x1e0
[ 259.124862][ T6139] vfs_get_tree+0x88/0x270
[ 259.129302][ T6139] do_new_mount+0x24a/0xa40
[ 259.133834][ T6139] __se_sys_mount+0x2d6/0x3c0
[ 259.138752][ T6139] ? __x64_sys_mount+0xc0/0xc0
[ 259.143536][ T6139] ? lockdep_hardirqs_on+0x94/0x140
[ 259.148747][ T6139] ? __x64_sys_mount+0x1c/0xc0
[ 259.153661][ T6139] do_syscall_64+0x4c/0xa0
[ 259.158102][ T6139] ? clear_bhb_loop+0x30/0x80
[ 259.162788][ T6139] ? clear_bhb_loop+0x30/0x80
[ 259.167585][ T6139] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 259.173501][ T6139] RIP: 0033:0x7f454a19a38a
[ 259.177934][ T6139] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 259.197639][ T6139] RSP: 002b:00007f4549807e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.206153][ T6139] RAX: ffffffffffffffda RBX: 00007f4549807ef0 RCX: 00007f454a19a38a
[ 259.214137][ T6139] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4549807eb0
[ 259.222292][ T6139] RBP: 0000200000000400 R08: 00007f4549807ef0 R09: 0000000000000000
[ 259.230283][ T6139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 259.237753][ T6145] loop5: detected capacity change from 0 to 32768
[ 259.238257][ T6139] R13: 00007f4549807eb0 R14: 00000000000125ed R15: 0000200000000640
[ 259.252948][ T6139]
[ 259.253546][ T27] Not tainted syzkaller #0
[ 259.256759][ T6139] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.266899][ T6141] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.274998][ T6139] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.289307][ T6141] CPU: 0 PID: 6141 Comm: syz.3.452 Not tainted syzkaller #0
[ 259.296662][ T6141] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 259.306725][ T6141] Call Trace:
[ 259.310101][ T6141]
[ 259.313034][ T6141] dump_stack_lvl+0x168/0x230
[ 259.317818][ T6141] ? show_regs_print_info+0x20/0x20
[ 259.323116][ T6141] ? load_image+0x3b0/0x3b0
[ 259.327861][ T6141] sysfs_create_dir_ns+0x252/0x280
[ 259.333088][ T6141] ? __lock_acquire+0x7c60/0x7c60
[ 259.338726][ T6141] ? sysfs_warn_dup+0xa0/0xa0
[ 259.343515][ T6141] ? do_raw_spin_unlock+0x11d/0x230
[ 259.348730][ T6141] kobject_add_internal+0x662/0xd00
[ 259.354152][ T6141] kobject_init_and_add+0x122/0x190
[ 259.359480][ T6141] ? lockdep_softirqs_off+0x420/0x420
[ 259.364912][ T6141] ? kobject_add+0x210/0x210
[ 259.369530][ T6141] ? __init_swait_queue_head+0xa5/0x150
[ 259.375170][ T6141] gfs2_sys_fs_add+0x234/0x480
[ 259.379940][ T6141] ? gfs2_recover_set+0x240/0x240
[ 259.385064][ T6141] ? snprintf+0xd7/0x120
[ 259.389318][ T6141] ? __free_pages+0x95/0x1a0
[ 259.393998][ T6141] ? vscnprintf+0x80/0x80
[ 259.398342][ T6141] gfs2_fill_super+0x128d/0x1f50
[ 259.403436][ T6141] ? gfs2_reconfigure+0xcd0/0xcd0
[ 259.408580][ T6141] ? preempt_count_add+0x8d/0x190
[ 259.413738][ T6141] ? sb_set_blocksize+0xa5/0xe0
[ 259.418637][ T6141] get_tree_bdev+0x3f1/0x610
[ 259.423281][ T6141] ? gfs2_reconfigure+0xcd0/0xcd0
[ 259.428412][ T6141] gfs2_get_tree+0x4d/0x1e0
[ 259.432941][ T6141] vfs_get_tree+0x88/0x270
[ 259.437380][ T6141] do_new_mount+0x24a/0xa40
[ 259.441905][ T6141] __se_sys_mount+0x2d6/0x3c0
[ 259.446609][ T6141] ? __x64_sys_mount+0xc0/0xc0
[ 259.451391][ T6141] ? lockdep_hardirqs_on+0x94/0x140
[ 259.456765][ T6141] ? __x64_sys_mount+0x1c/0xc0
[ 259.461553][ T6141] do_syscall_64+0x4c/0xa0
[ 259.466068][ T6141] ? clear_bhb_loop+0x30/0x80
[ 259.470929][ T6141] ? clear_bhb_loop+0x30/0x80
[ 259.475932][ T6141] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 259.481838][ T6141] RIP: 0033:0x7f17c050238a
[ 259.486430][ T6141] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 259.506488][ T6141] RSP: 002b:00007f17bfb6fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.515003][ T6141] RAX: ffffffffffffffda RBX: 00007f17bfb6fef0 RCX: 00007f17c050238a
[ 259.523457][ T6141] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f17bfb6feb0
[ 259.530039][ T6144] loop4: detected capacity change from 0 to 32768
[ 259.531435][ T6141] RBP: 0000200000000400 R08: 00007f17bfb6fef0 R09: 0000000000000000
[ 259.546055][ T6141] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 259.549410][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 259.554121][ T6141] R13: 00007f17bfb6feb0 R14: 00000000000125ed R15: 0000200000000640
[ 259.554150][ T6141]
[ 259.555056][ T6141] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.564469][ T27] task:syz.2.36 state:D
[ 259.572178][ T6141] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.596367][ T27] stack:24800 pid: 5091 ppid: 4718 flags:0x00004004
[ 259.627059][ T27] Call Trace:
[ 259.633956][ T27]
[ 259.640665][ T27] __schedule+0x11bb/0x4390
[ 259.646913][ T27] ? __lock_acquire+0x7c60/0x7c60
[ 259.651976][ T27] ? release_firmware_map_entry+0x190/0x190
[ 259.662117][ T27] ? lockdep_hardirqs_off+0x70/0x100
[ 259.670197][ T27] ? _raw_spin_unlock_irqrestore+0x82/0x100
[ 259.676579][ T27] schedule+0x11b/0x1e0
[ 259.681320][ T27] schedule_timeout+0x97/0x280
[ 259.686629][ T27] ? console_conditional_schedule+0x40/0x40
[ 259.692743][ T27] ? lockdep_hardirqs_on_prepare+0x3fc/0x760
[ 259.698949][ T27] ? lock_chain_count+0x20/0x20
[ 259.705776][ T27] ? lock_chain_count+0x20/0x20
[ 259.710988][ T27] ? _raw_spin_unlock_irq+0x1f/0x40
[ 259.717523][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 259.723163][ T27] do_wait_for_common+0x29a/0x440
[ 259.728528][ T27] ? console_conditional_schedule+0x40/0x40
[ 259.734873][ T27] ? wait_for_completion_killable_timeout+0x60/0x60
[ 259.741490][ T27] ? _raw_spin_lock_irq+0xab/0xe0
[ 259.746631][ T27] ? try_to_wake_up+0x6cf/0x1050
[ 259.751832][ T27] wait_for_completion+0x48/0x60
[ 259.757487][ T27] kthread_stop+0x16e/0x540
[ 259.762055][ T27] gfs2_make_fs_ro+0x14c/0x5d0
[ 259.767099][ T27] ? gfs2_dinode_out+0xb00/0xb00
[ 259.772645][ T27] ? do_raw_spin_lock+0x11d/0x280
[ 259.778029][ T27] ? __rwlock_init+0x140/0x140
[ 259.783262][ T27] ? do_raw_spin_unlock+0x11d/0x230
[ 259.788631][ T27] ? gfs2_glock_is_locked_by_me+0x16f/0x190
[ 259.794637][ T27] gfs2_withdraw+0x5f9/0x1460
[ 259.799448][ T27] ? gfs2_lm+0x220/0x220
[ 259.804039][ T27] ? gfs2_meta_buffer+0x310/0x310
[ 259.809200][ T27] ? from_kuid_munged+0x690/0x690
[ 259.814569][ T27] gfs2_metatype_check_ii+0x74/0x90
[ 259.819939][ T27] gfs2_quota_init+0xc81/0xe80
[ 259.824912][ T27] ? qd_get+0x5f0/0x5f0
[ 259.829105][ T27] gfs2_make_fs_rw+0x3f5/0x560
[ 259.834020][ T27] ? _raw_spin_unlock+0x24/0x40
[ 259.838966][ T27] ? gfs2_glock_nq+0xcb0/0x1550
[ 259.844050][ T27] ? gfs2_jdesc_check+0x290/0x290
[ 259.849196][ T27] gfs2_fill_super+0x188a/0x1f50
[ 259.854208][ T27] ? gfs2_reconfigure+0xcd0/0xcd0
[ 259.859379][ T27] ? gfs2_glock_nq_num+0x82/0x1b0
[ 259.864736][ T27] ? preempt_count_add+0x8d/0x190
[ 259.869832][ T27] ? gfs2_freeze_lock+0x52/0xc0
[ 259.876448][ T27] ? sb_set_blocksize+0xa5/0xe0
[ 259.881362][ T27] get_tree_bdev+0x3f1/0x610
[ 259.886279][ T27] ? gfs2_reconfigure+0xcd0/0xcd0
[ 259.891681][ T27] gfs2_get_tree+0x4d/0x1e0
[ 259.896717][ T27] vfs_get_tree+0x88/0x270
[ 259.901168][ T27] do_new_mount+0x24a/0xa40
[ 259.906021][ T27] __se_sys_mount+0x2d6/0x3c0
[ 259.910976][ T27] ? __x64_sys_mount+0xc0/0xc0
[ 259.916117][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 259.921531][ T27] ? __x64_sys_mount+0x1c/0xc0
[ 259.926687][ T27] do_syscall_64+0x4c/0xa0
[ 259.931464][ T27] ? clear_bhb_loop+0x30/0x80
[ 259.938530][ T27] ? clear_bhb_loop+0x30/0x80
[ 259.943500][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 259.949748][ T27] RIP: 0033:0x7fe97aac338a
[ 259.954620][ T27] RSP: 002b:00007fe97a130e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.963168][ T27] RAX: ffffffffffffffda RBX: 00007fe97a130ef0 RCX: 00007fe97aac338a
[ 259.972265][ T27] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fe97a130eb0
[ 259.981707][ T27] RBP: 0000200000000400 R08: 00007fe97a130ef0 R09: 0000000000000000
[ 259.990482][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 259.998936][ T27] R13: 00007fe97a130eb0 R14: 00000000000125ed R15: 0000200000000640
[ 260.007256][ T27]
[ 260.010418][ T27] INFO: task gfs2_quotad:5100 blocked for more than 144 seconds.
[ 260.023952][ T6145] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 260.028086][ T6144] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 260.031468][ T6145] CPU: 0 PID: 6145 Comm: syz.5.454 Not tainted syzkaller #0
[ 260.031486][ T6145] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 260.031495][ T6145] Call Trace:
[ 260.031502][ T6145]
[ 260.031510][ T6145] dump_stack_lvl+0x168/0x230
[ 260.031536][ T6145] ? show_regs_print_info+0x20/0x20
[ 260.073119][ T6145] ? load_image+0x3b0/0x3b0
[ 260.077637][ T6145] sysfs_create_dir_ns+0x252/0x280
[ 260.082749][ T6145] ? __lock_acquire+0x7c60/0x7c60
[ 260.088032][ T6145] ? sysfs_warn_dup+0xa0/0xa0
[ 260.092719][ T6145] ? do_raw_spin_unlock+0x11d/0x230
[ 260.098181][ T6145] kobject_add_internal+0x662/0xd00
[ 260.103472][ T6145] kobject_init_and_add+0x122/0x190
[ 260.108686][ T6145] ? lockdep_softirqs_off+0x420/0x420
[ 260.114160][ T6145] ? kobject_add+0x210/0x210
[ 260.118770][ T6145] ? __init_swait_queue_head+0xa5/0x150
[ 260.124409][ T6145] gfs2_sys_fs_add+0x234/0x480
[ 260.129250][ T6145] ? gfs2_recover_set+0x240/0x240
[ 260.134277][ T6145] ? snprintf+0xd7/0x120
[ 260.138613][ T6145] ? __free_pages+0x95/0x1a0
[ 260.143244][ T6145] ? vscnprintf+0x80/0x80
[ 260.147787][ T6145] gfs2_fill_super+0x128d/0x1f50
[ 260.152754][ T6145] ? gfs2_reconfigure+0xcd0/0xcd0
[ 260.157773][ T6145] ? preempt_count_add+0x8d/0x190
[ 260.162797][ T6145] ? sb_set_blocksize+0xa5/0xe0
[ 260.167673][ T6145] get_tree_bdev+0x3f1/0x610
[ 260.172259][ T6145] ? gfs2_reconfigure+0xcd0/0xcd0
[ 260.177308][ T6145] gfs2_get_tree+0x4d/0x1e0
[ 260.181803][ T6145] vfs_get_tree+0x88/0x270
[ 260.186345][ T6145] do_new_mount+0x24a/0xa40
[ 260.190960][ T6145] __se_sys_mount+0x2d6/0x3c0
[ 260.195723][ T6145] ? __x64_sys_mount+0xc0/0xc0
[ 260.200483][ T6145] ? lockdep_hardirqs_on+0x94/0x140
[ 260.205674][ T6145] ? __x64_sys_mount+0x1c/0xc0
[ 260.210436][ T6145] do_syscall_64+0x4c/0xa0
[ 260.214841][ T6145] ? clear_bhb_loop+0x30/0x80
[ 260.219507][ T6145] ? clear_bhb_loop+0x30/0x80
[ 260.224178][ T6145] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 260.230056][ T6145] RIP: 0033:0x7eff7626138a
[ 260.234463][ T6145] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 260.254060][ T6145] RSP: 002b:00007eff758cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 260.262662][ T6145] RAX: ffffffffffffffda RBX: 00007eff758ceef0 RCX: 00007eff7626138a
[ 260.270646][ T6145] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007eff758ceeb0
[ 260.278699][ T6145] RBP: 0000200000000400 R08: 00007eff758ceef0 R09: 0000000000000000
[ 260.286687][ T6145] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 260.294761][ T6145] R13: 00007eff758ceeb0 R14: 00000000000125ed R15: 0000200000000640
[ 260.302758][ T6145]
[ 260.305765][ T6144] CPU: 1 PID: 6144 Comm: syz.4.453 Not tainted syzkaller #0
[ 260.306991][ T6145] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 260.313046][ T6144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 260.326375][ T6145] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 260.336474][ T6144] Call Trace:
[ 260.336486][ T6144]
[ 260.336495][ T6144] dump_stack_lvl+0x168/0x230
[ 260.353924][ T6144] ? show_regs_print_info+0x20/0x20
[ 260.359133][ T6144] ? load_image+0x3b0/0x3b0
[ 260.363662][ T6144] sysfs_create_dir_ns+0x252/0x280
[ 260.368792][ T6144] ? __lock_acquire+0x7c60/0x7c60
[ 260.373833][ T6144] ? sysfs_warn_dup+0xa0/0xa0
[ 260.378763][ T6144] ? do_raw_spin_unlock+0x11d/0x230
[ 260.384054][ T6144] kobject_add_internal+0x662/0xd00
[ 260.389270][ T6144] kobject_init_and_add+0x122/0x190
[ 260.390215][ T27] Not tainted syzkaller #0
[ 260.394481][ T6144] ? lockdep_softirqs_off+0x420/0x420
[ 260.394508][ T6144] ? kobject_add+0x210/0x210
[ 260.394526][ T6144] ? __init_swait_queue_head+0xa5/0x150
[ 260.394548][ T6144] gfs2_sys_fs_add+0x234/0x480
[ 260.394568][ T6144] ? gfs2_recover_set+0x240/0x240
[ 260.394584][ T6144] ? snprintf+0xd7/0x120
[ 260.394601][ T6144] ? __free_pages+0x95/0x1a0
[ 260.406874][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 260.409565][ T6144] ? vscnprintf+0x80/0x80
[ 260.433338][ T27] task:gfs2_quotad state:D
[ 260.433949][ T6144] gfs2_fill_super+0x128d/0x1f50
[ 260.433988][ T6144] ? gfs2_reconfigure+0xcd0/0xcd0
[ 260.462188][ T6144] ? preempt_count_add+0x8d/0x190
[ 260.463184][ T27] stack:27112 pid: 5100 ppid: 2 flags:0x00004000
[ 260.467236][ T6144] ? sb_set_blocksize+0xa5/0xe0
[ 260.467267][ T6144] get_tree_bdev+0x3f1/0x610
[ 260.467289][ T6144] ? gfs2_reconfigure+0xcd0/0xcd0
[ 260.467309][ T6144] gfs2_get_tree+0x4d/0x1e0
[ 260.467326][ T6144] vfs_get_tree+0x88/0x270
[ 260.467344][ T6144] do_new_mount+0x24a/0xa40
[ 260.467366][ T6144] __se_sys_mount+0x2d6/0x3c0
[ 260.467387][ T6144] ? __x64_sys_mount+0xc0/0xc0
[ 260.467404][ T6144] ? lockdep_hardirqs_on+0x94/0x140
[ 260.467421][ T6144] ? __x64_sys_mount+0x1c/0xc0
[ 260.467441][ T6144] do_syscall_64+0x4c/0xa0
[ 260.467456][ T6144] ? clear_bhb_loop+0x30/0x80
[ 260.467472][ T6144] ? clear_bhb_loop+0x30/0x80
[ 260.467488][ T6144] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 260.467504][ T6144] RIP: 0033:0x7f000dda438a
[ 260.467521][ T6144] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 260.467534][ T6144] RSP: 002b:00007f000d411e68 EFLAGS: 00000246
[ 260.481350][ T27] Call Trace:
[ 260.483695][ T6144] ORIG_RAX: 00000000000000a5
[ 260.483705][ T6144] RAX: ffffffffffffffda RBX: 00007f000d411ef0 RCX: 00007f000dda438a
[ 260.483717][ T6144] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f000d411eb0
[ 260.483728][ T6144] RBP: 0000200000000400 R08: 00007f000d411ef0 R09: 0000000000000000
[ 260.483738][ T6144] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 260.483749][ T6144] R13: 00007f000d411eb0 R14: 00000000000125ed R15: 0000200000000640
[ 260.490762][ T27]
[ 260.493249][ T6144]
[ 260.498066][ T27] __schedule+0x11bb/0x4390
[ 260.502871][ T6144] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 260.513503][ T27] ? lockdep_hardirqs_on_prepare+0x3fc/0x760
[ 260.517025][ T6144] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 260.522347][ T27] ? lock_chain_count+0x20/0x20
[ 260.666082][ T27] ? release_firmware_map_entry+0x190/0x190
[ 260.672152][ T27] ? _raw_spin_lock_irqsave+0xb0/0xf0
[ 260.677569][ T27] ? _raw_spin_unlock_irqrestore+0x82/0x100
[ 260.683820][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 260.689132][ T27] ? _raw_spin_unlock_irqrestore+0xaa/0x100
[ 260.696429][ T27] schedule+0x11b/0x1e0
[ 260.700616][ T27] bit_wait+0xd/0xc0
[ 260.704876][ T27] out_of_line_wait_on_bit+0x15e/0x200
[ 260.710350][ T27] ? out_of_line_wait_on_bit_lock+0x160/0x160
[ 260.716937][ T27] ? __wait_on_bit+0x170/0x170
[ 260.721722][ T27] ? bit_waitqueue+0x30/0x30
[ 260.726419][ T27] ? do_raw_spin_unlock+0x11d/0x230
[ 260.731629][ T27] __gfs2_glock_dq+0x6b5/0xa10
[ 260.736808][ T27] gfs2_glock_dq_uninit+0x4f/0x110
[ 260.742071][ T27] gfs2_statfs_sync+0x6fa/0x780
[ 260.747000][ T27] ? update_statfs+0x320/0x320
[ 260.751780][ T27] ? finish_task_switch+0x12f/0x640
[ 260.757419][ T27] ? gfs2_statfs_sync+0x138/0x780
[ 260.762461][ T27] gfs2_quotad+0x365/0x880
[ 260.767229][ T27] ? gfs2_wake_up_statfs+0xc0/0xc0
[ 260.772538][ T27] ? _raw_spin_unlock_irqrestore+0x82/0x100
[ 260.779703][ T27] ? init_wait_entry+0xd0/0xd0
[ 260.784922][ T27] ? _raw_spin_unlock_irqrestore+0xaa/0x100
[ 260.790862][ T27] ? __kthread_parkme+0x157/0x1b0
[ 260.796756][ T27] kthread+0x436/0x520
[ 260.800842][ T27] ? gfs2_wake_up_statfs+0xc0/0xc0
[ 260.806006][ T27] ? kthread_blkcg+0xd0/0xd0
[ 260.810833][ T27] ret_from_fork+0x1f/0x30
[ 260.815812][ T27]
[ 260.819148][ T27]
[ 260.819148][ T27] Showing all locks held in the system:
[ 260.827728][ T27] 1 lock held by khungtaskd/27:
[ 260.832706][ T27] #0: ffffffff8c11c660 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 260.850328][ T27] 1 lock held by udevd/3561:
[ 260.857042][ T27] 2 locks held by getty/3954:
[ 260.861812][ T27] #0: ffff88814d424098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 260.878433][ T27] #1: ffffc90002cf62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5ba/0x1a30
[ 260.990495][ T27] 3 locks held by kworker/0:4/4207:
[ 261.002672][ T27] 3 locks held by kworker/1:17/4297:
[ 261.010270][ T27] #0: ffff888016870938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x760/0x1000
[ 261.021444][ T27] #1: ffffc9000332fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7a3/0x1000
[ 261.034680][ T27] #2: ffffffff8c1210e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x320/0x6b0
[ 261.046022][ T27] 1 lock held by udevd/4868:
[ 261.050621][ T27] #0: ffff88801ff00518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x157/0xa60
2025/09/25 23:54:27 executed programs: 448
[ 261.224978][ T6147] loop1: detected capacity change from 0 to 32768
[ 261.245269][ T27] 3 locks held by kworker/0:13/4877:
[ 261.250829][ T27] #0: ffff888016870938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x760/0x1000
[ 261.283296][ T27] #1: ffffc9000362fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7a3/0x1000
[ 261.327619][ T27] #2: ffffffff8c1210e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x347/0x6b0
[ 261.337179][ T6149] loop0: detected capacity change from 0 to 32768
[ 261.347127][ T27] 1 lock held by syz.2.36/5091:
[ 261.352318][ T27] #0: ffff88807951c0e0 (&type->s_umount_key#53/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950
[ 261.362526][ T27] 1 lock held by syz.3.452/6141:
[ 261.367512][ T27] #0: ffff88801fe77468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90
[ 261.376826][ T27] 2 locks held by syz.5.454/6145:
[ 261.381857][ T27] #0: ffff88801ff00518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[ 261.391629][ T27] #1: ffff888147ac5468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 261.400760][ T27] 1 lock held by syz.4.453/6144:
[ 261.405749][ T27] #0: ffff888147ac2468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90
[ 261.415603][ T27] 2 locks held by syz.1.455/6147:
[ 261.420637][ T27] #0: ffff8881479a4118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[ 261.430060][ T27] #1: ffff88801fe71468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 261.439101][ T27] 2 locks held by syz.0.456/6149:
[ 261.444410][ T27] #0: ffff88801fb52518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[ 261.454558][ T27] #1: ffff88801fdae468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 261.463595][ T27]
[ 261.466325][ T27] =============================================
[ 261.466325][ T27]
[ 261.475058][ T27] NMI backtrace for cpu 1
[ 261.479386][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[ 261.486845][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 261.497028][ T27] Call Trace:
[ 261.500312][ T27]
[ 261.503386][ T27] dump_stack_lvl+0x168/0x230
[ 261.508175][ T27] ? show_regs_print_info+0x20/0x20
[ 261.513472][ T27] ? load_image+0x3b0/0x3b0
[ 261.517978][ T27] ? tick_nohz_tick_stopped+0x7b/0xb0
[ 261.523454][ T27] ? nmi_cpu_backtrace+0x1b6/0x3d0
[ 261.528668][ T27] nmi_cpu_backtrace+0x397/0x3d0
[ 261.533647][ T27] ? nmi_trigger_cpumask_backtrace+0x280/0x280
[ 261.539901][ T27] ? _printk+0xcc/0x110
[ 261.544073][ T27] ? load_image+0x3b0/0x3b0
[ 261.546937][ T6147] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.548699][ T27] ? load_image+0x3b0/0x3b0
[ 261.560710][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 261.566863][ T27] nmi_trigger_cpumask_backtrace+0x163/0x280
[ 261.572843][ T27] watchdog+0xe0f/0xe50
[ 261.576993][ T27] kthread+0x436/0x520
[ 261.581153][ T27] ? hungtask_pm_notify+0x40/0x40
[ 261.586159][ T27] ? kthread_blkcg+0xd0/0xd0
[ 261.590772][ T27] ret_from_fork+0x1f/0x30
[ 261.595208][ T27]
[ 261.598229][ T6147] CPU: 0 PID: 6147 Comm: syz.1.455 Not tainted syzkaller #0
[ 261.598976][ T27] Sending NMI from CPU 1 to CPUs 0:
[ 261.605509][ T6147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 261.605521][ T6147] Call Trace:
[ 261.605528][ T6147]
[ 261.605534][ T6147] dump_stack_lvl+0x168/0x230
[ 261.605558][ T6147] ? show_regs_print_info+0x20/0x20
[ 261.605575][ T6147] ? load_image+0x3b0/0x3b0
[ 261.605608][ T6147] sysfs_create_dir_ns+0x252/0x280
[ 261.605629][ T6147] ? __lock_acquire+0x7c60/0x7c60
[ 261.605649][ T6147] ? sysfs_warn_dup+0xa0/0xa0
[ 261.605671][ T6147] ? do_raw_spin_unlock+0x11d/0x230
[ 261.605691][ T6147] kobject_add_internal+0x662/0xd00
[ 261.605716][ T6147] kobject_init_and_add+0x122/0x190
[ 261.610909][ C0] NMI backtrace for cpu 0
[ 261.610918][ C0] CPU: 0 PID: 6147 Comm: syz.1.455 Not tainted syzkaller #0
[ 261.610933][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 261.610942][ C0] RIP: 0010:format_decode+0x307/0x1330
[ 261.610962][ C0] Code: 8b 4c 24 08 80 e1 07 38 c1 7c ac be 08 00 00 00 48 8b 7c 24 08 e8 f9 5c be fd eb 9b 4c 89 74 24 38 48 8b 44 24 10 0f b6 04 18 <84> c0 0f 85 31 0d 00 00 48 8b 44 24 18 0f b6 04 18 84 c0 0f 85 42
[ 261.610975][ C0] RSP: 0018:ffffc9000c58eef0 EFLAGS: 00000006
[ 261.610989][ C0] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000001
[ 261.610999][ C0] RDX: ffffffff83fdd618 RSI: ffffffff8c73b220 RDI: 0000000000000036
[ 261.611010][ C0] RBP: 0000001000000000 R08: ffff888022f90000 R09: 0000000000000005
[ 261.611020][ C0] R10: 0000000000000030 R11: 0000000000000000 R12: ffffffff8a0bce28
[ 261.611030][ C0] R13: 1ffffffff14179c5 R14: ffffffff8a0bce28 R15: 0000000000000016
[ 261.611040][ C0] FS: 00007f9ea30006c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
[ 261.611053][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 261.611064][ C0] CR2: 00007f9ea3a427bf CR3: 000000007e3ad000 CR4: 00000000003506f0
[ 261.611077][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 261.611086][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 261.611095][ C0] Call Trace:
[ 261.611100][ C0]
[ 261.611110][ C0] vsnprintf+0xef/0x1a00
[ 261.611131][ C0] sprintf+0xd6/0x120
[ 261.611149][ C0] ? vsprintf+0x30/0x30
[ 261.611165][ C0] ? prb_read_valid+0x60/0x60
[ 261.611180][ C0] ? down_trylock+0x4c/0xa0
[ 261.611197][ C0] info_print_prefix+0x152/0x300
[ 261.611211][ C0] ? trace_raw_output_console+0xd0/0xd0
[ 261.611225][ C0] ? _prb_commit+0x289/0x340
[ 261.611241][ C0] console_unlock+0x7f5/0x1200
[ 261.611258][ C0] ? console_trylock_spinning+0x350/0x350
[ 261.611279][ C0] ? read_lock_is_recursive+0x10/0x10
[ 261.611296][ C0] ? __rwlock_init+0x140/0x140
[ 261.611309][ C0] ? console_trylock_spinning+0x1f2/0x350
[ 261.611330][ C0] ? vprintk_emit+0x150/0x150
[ 261.611353][ C0] vprintk_emit+0xc0/0x150
[ 261.611370][ C0] _printk+0xcc/0x110
[ 261.611385][ C0] ? deref_stack_reg+0xd0/0x120
[ 261.611399][ C0] ? kobject_init_and_add+0x122/0x190
[ 261.611414][ C0] ? load_image+0x3b0/0x3b0
[ 261.611431][ C0] ? wq_watchdog_touch+0xeb/0x170
[ 261.611446][ C0] ? kobject_init_and_add+0x122/0x190
[ 261.611460][ C0] ? kobject_init_and_add+0x122/0x190
[ 261.611474][ C0] show_trace_log_lvl+0x4d0/0x550
[ 261.611494][ C0] ? kobject_init_and_add+0x122/0x190
[ 261.611510][ C0] dump_stack_lvl+0x168/0x230
[ 261.611526][ C0] ? show_regs_print_info+0x20/0x20
[ 261.611541][ C0] ? load_image+0x3b0/0x3b0
[ 261.611562][ C0] sysfs_create_dir_ns+0x252/0x280
[ 261.611584][ C0] ? __lock_acquire+0x7c60/0x7c60
[ 261.611600][ C0] ? sysfs_warn_dup+0xa0/0xa0
[ 261.611617][ C0] ? do_raw_spin_unlock+0x11d/0x230
[ 261.611634][ C0] kobject_add_internal+0x662/0xd00
[ 261.611651][ C0] kobject_init_and_add+0x122/0x190
[ 261.611665][ C0] ? lockdep_softirqs_off+0x420/0x420
[ 261.611683][ C0] ? kobject_add+0x210/0x210
[ 261.611699][ C0] ? __init_swait_queue_head+0xa5/0x150
[ 261.611718][ C0] gfs2_sys_fs_add+0x234/0x480
[ 261.611734][ C0] ? gfs2_recover_set+0x240/0x240
[ 261.611748][ C0] ? snprintf+0xd7/0x120
[ 261.611763][ C0] ? __free_pages+0x95/0x1a0
[ 261.611780][ C0] ? vscnprintf+0x80/0x80
[ 261.611801][ C0] gfs2_fill_super+0x128d/0x1f50
[ 261.611823][ C0] ? gfs2_reconfigure+0xcd0/0xcd0
[ 261.611840][ C0] ? preempt_count_add+0x8d/0x190
[ 261.611861][ C0] ? sb_set_blocksize+0xa5/0xe0
[ 261.611879][ C0] get_tree_bdev+0x3f1/0x610
[ 261.611896][ C0] ? gfs2_reconfigure+0xcd0/0xcd0
[ 261.611912][ C0] gfs2_get_tree+0x4d/0x1e0
[ 261.611928][ C0] vfs_get_tree+0x88/0x270
[ 261.611944][ C0] do_new_mount+0x24a/0xa40
[ 261.611963][ C0] __se_sys_mount+0x2d6/0x3c0
[ 261.611980][ C0] ? __x64_sys_mount+0xc0/0xc0
[ 261.611997][ C0] ? lockdep_hardirqs_on+0x94/0x140
[ 261.612012][ C0] ? __x64_sys_mount+0x1c/0xc0
[ 261.612027][ C0] do_syscall_64+0x4c/0xa0
[ 261.612040][ C0] ? clear_bhb_loop+0x30/0x80
[ 261.612054][ C0] ? clear_bhb_loop+0x30/0x80
[ 261.612069][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 261.612084][ C0] RIP: 0033:0x7f9ea399238a
[ 261.612097][ C0] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 261.612110][ C0] RSP: 002b:00007f9ea2fffe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 261.612124][ C0] RAX: ffffffffffffffda RBX: 00007f9ea2fffef0 RCX: 00007f9ea399238a
[ 261.612135][ C0] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fffeb0
[ 261.612146][ C0] RBP: 0000200000000400 R08: 00007f9ea2fffef0 R09: 0000000000000000
[ 261.612155][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 261.612164][ C0] R13: 00007f9ea2fffeb0 R14: 00000000000125ed R15: 0000200000000640
[ 261.612181][ C0]
[ 261.658877][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 261.663248][ T6147] ? lockdep_softirqs_off+0x420/0x420
[ 262.186225][ T6147] ? kobject_add+0x210/0x210
[ 262.190833][ T6147] ? __init_swait_queue_head+0xa5/0x150
[ 262.196388][ T6147] gfs2_sys_fs_add+0x234/0x480
[ 262.201147][ T6147] ? gfs2_recover_set+0x240/0x240
[ 262.206250][ T6147] ? snprintf+0xd7/0x120
[ 262.210479][ T6147] ? __free_pages+0x95/0x1a0
[ 262.215223][ T6147] ? vscnprintf+0x80/0x80
[ 262.219550][ T6147] gfs2_fill_super+0x128d/0x1f50
[ 262.224494][ T6147] ? gfs2_reconfigure+0xcd0/0xcd0
[ 262.229520][ T6147] ? preempt_count_add+0x8d/0x190
[ 262.234652][ T6147] ? sb_set_blocksize+0xa5/0xe0
[ 262.239665][ T6147] get_tree_bdev+0x3f1/0x610
[ 262.244244][ T6147] ? gfs2_reconfigure+0xcd0/0xcd0
[ 262.249280][ T6147] gfs2_get_tree+0x4d/0x1e0
[ 262.253813][ T6147] vfs_get_tree+0x88/0x270
[ 262.258243][ T6147] do_new_mount+0x24a/0xa40
[ 262.262834][ T6147] __se_sys_mount+0x2d6/0x3c0
[ 262.267515][ T6147] ? __x64_sys_mount+0xc0/0xc0
[ 262.272271][ T6147] ? lockdep_hardirqs_on+0x94/0x140
[ 262.277459][ T6147] ? __x64_sys_mount+0x1c/0xc0
[ 262.282215][ T6147] do_syscall_64+0x4c/0xa0
[ 262.286617][ T6147] ? clear_bhb_loop+0x30/0x80
[ 262.291310][ T6147] ? clear_bhb_loop+0x30/0x80
[ 262.295973][ T6147] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 262.301874][ T6147] RIP: 0033:0x7f9ea399238a
[ 262.306393][ T6147] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 262.326357][ T6147] RSP: 002b:00007f9ea2fffe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 262.334878][ T6147] RAX: ffffffffffffffda RBX: 00007f9ea2fffef0 RCX: 00007f9ea399238a
[ 262.342841][ T6147] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9ea2fffeb0
[ 262.350801][ T6147] RBP: 0000200000000400 R08: 00007f9ea2fffef0 R09: 0000000000000000
[ 262.358755][ T6147] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 262.366900][ T6147] R13: 00007f9ea2fffeb0 R14: 00000000000125ed R15: 0000200000000640
[ 262.375046][ T6147]
[ 262.378075][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[ 262.378940][ T6147] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 262.385273][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 262.385286][ T27] Call Trace:
[ 262.385292][ T27]
[ 262.385300][ T27] dump_stack_lvl+0x168/0x230
[ 262.385325][ T27] ? show_regs_print_info+0x20/0x20
[ 262.385342][ T27] ? load_image+0x3b0/0x3b0
[ 262.385366][ T27] panic+0x2c9/0x7f0
[ 262.385382][ T27] ? schedule_preempt_disabled+0x20/0x20
[ 262.385403][ T27] ? bpf_jit_dump+0xd0/0xd0
[ 262.385419][ T27] ? __irq_work_queue_local+0x12c/0x190
[ 262.385441][ T27] ? nmi_trigger_cpumask_backtrace+0x260/0x280
[ 262.385464][ T27] watchdog+0xe4e/0xe50
[ 262.398848][ T6147] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 262.409132][ T27] kthread+0x436/0x520
[ 262.409167][ T27] ? hungtask_pm_notify+0x40/0x40
[ 262.476022][ T27] ? kthread_blkcg+0xd0/0xd0
[ 262.480653][ T27] ret_from_fork+0x1f/0x30
[ 262.485196][ T27]
[ 262.488495][ T27] Kernel Offset: disabled
[ 262.493004][ T27] Rebooting in 86400 seconds..