331090a
[ 228.723113][ T6502] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdb5257feb0
[ 228.731068][ T6502] RBP: 0000200000000400 R08: 00007fdb5257fef0 R09: 0000000000000000
[ 228.739023][ T6502] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 228.746975][ T6502] R13: 00007fdb5257feb0 R14: 00000000000125bb R15: 00002000000004c0
[ 228.754939][ T6502]
[ 228.759404][ T6502] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 228.773172][ T6502] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 228.792012][ T6496] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 228.803496][ T6504] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 228.810950][ T6504] CPU: 0 PID: 6504 Comm: syz.3.363 Not tainted syzkaller #0
[ 228.818234][ T6504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 228.828287][ T6504] Call Trace:
[ 228.831565][ T6504]
[ 228.834492][ T6504] dump_stack_lvl+0x168/0x230
[ 228.839186][ T6504] ? show_regs_print_info+0x20/0x20
[ 228.844391][ T6504] ? load_image+0x3b0/0x3b0
[ 228.848908][ T6504] sysfs_create_dir_ns+0x252/0x280
[ 228.854043][ T6504] ? __lock_acquire+0x7c60/0x7c60
[ 228.859080][ T6504] ? sysfs_warn_dup+0xa0/0xa0
[ 228.863773][ T6504] ? do_raw_spin_unlock+0x11d/0x230
[ 228.868978][ T6504] kobject_add_internal+0x662/0xd00
[ 228.874187][ T6504] kobject_init_and_add+0x122/0x190
[ 228.879384][ T6504] ? lockdep_softirqs_off+0x420/0x420
[ 228.884763][ T6504] ? kobject_add+0x210/0x210
[ 228.889368][ T6504] ? __init_swait_queue_head+0xa5/0x150
[ 228.894920][ T6504] gfs2_sys_fs_add+0x234/0x480
[ 228.899688][ T6504] ? gfs2_recover_set+0x240/0x240
[ 228.904721][ T6504] ? snprintf+0xd7/0x120
[ 228.908975][ T6504] ? __free_pages+0x95/0x1a0
[ 228.913569][ T6504] ? vscnprintf+0x80/0x80
[ 228.917907][ T6504] gfs2_fill_super+0x128d/0x1f50
[ 228.922857][ T6504] ? gfs2_reconfigure+0xcd0/0xcd0
[ 228.927880][ T6504] ? preempt_count_add+0x8d/0x190
[ 228.932911][ T6504] ? sb_set_blocksize+0xa5/0xe0
[ 228.937762][ T6504] get_tree_bdev+0x3f1/0x610
[ 228.942359][ T6504] ? gfs2_reconfigure+0xcd0/0xcd0
[ 228.947478][ T6504] gfs2_get_tree+0x4d/0x1e0
[ 228.951996][ T6504] vfs_get_tree+0x88/0x270
[ 228.956424][ T6504] do_new_mount+0x24a/0xa40
[ 228.960938][ T6504] __se_sys_mount+0x2d6/0x3c0
[ 228.965628][ T6504] ? __x64_sys_mount+0xc0/0xc0
[ 228.970404][ T6504] ? lockdep_hardirqs_on+0x94/0x140
[ 228.975607][ T6504] ? __x64_sys_mount+0x1c/0xc0
[ 228.980373][ T6504] do_syscall_64+0x4c/0xa0
[ 228.984788][ T6504] ? clear_bhb_loop+0x30/0x80
[ 228.989467][ T6504] ? clear_bhb_loop+0x30/0x80
[ 228.994150][ T6504] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 229.000044][ T6504] RIP: 0033:0x7f33eeb1a90a
[ 229.004470][ T6504] 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
[ 229.024087][ T6504] RSP: 002b:00007f33edd89e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 229.032519][ T6504] RAX: ffffffffffffffda RBX: 00007f33edd89ef0 RCX: 00007f33eeb1a90a
[ 229.040493][ T6504] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33edd89eb0
[ 229.048571][ T6504] RBP: 0000200000000400 R08: 00007f33edd89ef0 R09: 0000000000000000
[ 229.056555][ T6504] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 229.064616][ T6504] R13: 00007f33edd89eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 229.072609][ T6504]
[ 229.077022][ T6504] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 229.090188][ T6504] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 229.140485][ T6496] CPU: 0 PID: 6496 Comm: syz.5.359 Not tainted syzkaller #0
[ 229.147820][ T6496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 229.157886][ T6496] Call Trace:
[ 229.161169][ T6496]
[ 229.164164][ T6496] dump_stack_lvl+0x168/0x230
[ 229.168853][ T6496] ? show_regs_print_info+0x20/0x20
[ 229.174058][ T6496] ? load_image+0x3b0/0x3b0
[ 229.178577][ T6496] sysfs_create_dir_ns+0x252/0x280
[ 229.183700][ T6496] ? __lock_acquire+0x7c60/0x7c60
[ 229.188728][ T6496] ? sysfs_warn_dup+0xa0/0xa0
[ 229.193410][ T6496] ? do_raw_spin_unlock+0x11d/0x230
[ 229.198609][ T6496] kobject_add_internal+0x662/0xd00
[ 229.203817][ T6496] kobject_init_and_add+0x122/0x190
[ 229.209021][ T6496] ? lockdep_softirqs_off+0x420/0x420
[ 229.214408][ T6496] ? kobject_add+0x210/0x210
[ 229.219006][ T6496] ? __init_swait_queue_head+0xa5/0x150
[ 229.224562][ T6496] gfs2_sys_fs_add+0x234/0x480
[ 229.229334][ T6496] ? gfs2_recover_set+0x240/0x240
[ 229.234362][ T6496] ? snprintf+0xd7/0x120
[ 229.238608][ T6496] ? __free_pages+0x95/0x1a0
[ 229.243205][ T6496] ? vscnprintf+0x80/0x80
[ 229.247552][ T6496] gfs2_fill_super+0x128d/0x1f50
[ 229.252509][ T6496] ? gfs2_reconfigure+0xcd0/0xcd0
[ 229.257543][ T6496] ? preempt_count_add+0x8d/0x190
[ 229.262581][ T6496] ? sb_set_blocksize+0xa5/0xe0
[ 229.267442][ T6496] get_tree_bdev+0x3f1/0x610
[ 229.272043][ T6496] ? gfs2_reconfigure+0xcd0/0xcd0
[ 229.277074][ T6496] gfs2_get_tree+0x4d/0x1e0
[ 229.281589][ T6496] vfs_get_tree+0x88/0x270
[ 229.286012][ T6496] do_new_mount+0x24a/0xa40
[ 229.290535][ T6496] __se_sys_mount+0x2d6/0x3c0
[ 229.295222][ T6496] ? __x64_sys_mount+0xc0/0xc0
[ 229.299992][ T6496] ? lockdep_hardirqs_on+0x94/0x140
[ 229.305200][ T6496] ? __x64_sys_mount+0x1c/0xc0
[ 229.309968][ T6496] do_syscall_64+0x4c/0xa0
[ 229.314391][ T6496] ? clear_bhb_loop+0x30/0x80
[ 229.319076][ T6496] ? clear_bhb_loop+0x30/0x80
[ 229.323767][ T6496] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 229.329658][ T6496] RIP: 0033:0x7fa05610190a
[ 229.334076][ T6496] 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
[ 229.353689][ T6496] RSP: 002b:00007fa055370e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 229.362121][ T6496] RAX: ffffffffffffffda RBX: 00007fa055370ef0 RCX: 00007fa05610190a
[ 229.370094][ T6496] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fa055370eb0
[ 229.378074][ T6496] RBP: 0000200000000400 R08: 00007fa055370ef0 R09: 0000000000000000
[ 229.386051][ T6496] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 229.394024][ T6496] R13: 00007fa055370eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 229.402010][ T6496]
[ 229.410004][ T6496] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 229.499554][ T6506] loop4: detected capacity change from 0 to 32768
[ 229.536533][ T6496] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 229.687533][ T6506] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 229.695012][ T6506] CPU: 1 PID: 6506 Comm: syz.4.364 Not tainted syzkaller #0
[ 229.702309][ T6506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 229.712365][ T6506] Call Trace:
[ 229.715646][ T6506]
[ 229.718588][ T6506] dump_stack_lvl+0x168/0x230
[ 229.723272][ T6506] ? show_regs_print_info+0x20/0x20
[ 229.728471][ T6506] ? load_image+0x3b0/0x3b0
[ 229.732983][ T6506] sysfs_create_dir_ns+0x252/0x280
[ 229.738105][ T6506] ? __lock_acquire+0x7c60/0x7c60
[ 229.743133][ T6506] ? sysfs_warn_dup+0xa0/0xa0
[ 229.747816][ T6506] ? do_raw_spin_unlock+0x11d/0x230
[ 229.753019][ T6506] kobject_add_internal+0x662/0xd00
[ 229.758236][ T6506] kobject_init_and_add+0x122/0x190
[ 229.763433][ T6506] ? lockdep_softirqs_off+0x420/0x420
[ 229.768926][ T6506] ? kobject_add+0x210/0x210
[ 229.773535][ T6506] ? __init_swait_queue_head+0xa5/0x150
[ 229.779086][ T6506] gfs2_sys_fs_add+0x234/0x480
[ 229.783860][ T6506] ? gfs2_recover_set+0x240/0x240
[ 229.788883][ T6506] ? snprintf+0xd7/0x120
[ 229.793125][ T6506] ? __free_pages+0x95/0x1a0
[ 229.797726][ T6506] ? vscnprintf+0x80/0x80
[ 229.802069][ T6506] gfs2_fill_super+0x128d/0x1f50
[ 229.807023][ T6506] ? gfs2_reconfigure+0xcd0/0xcd0
[ 229.812065][ T6506] ? preempt_count_add+0x8d/0x190
[ 229.815046][ T6510] loop2: detected capacity change from 0 to 32768
[ 229.817102][ T6506] ? sb_set_blocksize+0xa5/0xe0
[ 229.828320][ T6506] get_tree_bdev+0x3f1/0x610
[ 229.832920][ T6506] ? gfs2_reconfigure+0xcd0/0xcd0
[ 229.837952][ T6506] gfs2_get_tree+0x4d/0x1e0
[ 229.842463][ T6506] vfs_get_tree+0x88/0x270
[ 229.846886][ T6506] do_new_mount+0x24a/0xa40
[ 229.851400][ T6506] __se_sys_mount+0x2d6/0x3c0
[ 229.856086][ T6506] ? __x64_sys_mount+0xc0/0xc0
[ 229.860857][ T6506] ? lockdep_hardirqs_on+0x94/0x140
[ 229.866060][ T6506] ? __x64_sys_mount+0x1c/0xc0
[ 229.870833][ T6506] do_syscall_64+0x4c/0xa0
[ 229.875256][ T6506] ? clear_bhb_loop+0x30/0x80
[ 229.879948][ T6506] ? clear_bhb_loop+0x30/0x80
[ 229.884634][ T6506] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 229.890546][ T6506] RIP: 0033:0x7fcaa769990a
[ 229.894969][ T6506] 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
[ 229.914580][ T6506] RSP: 002b:00007fcaa6908e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 229.922998][ T6506] RAX: ffffffffffffffda RBX: 00007fcaa6908ef0 RCX: 00007fcaa769990a
[ 229.931038][ T6506] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fcaa6908eb0
[ 229.939043][ T6506] RBP: 0000200000000400 R08: 00007fcaa6908ef0 R09: 0000000000000000
[ 229.947104][ T6506] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 229.955080][ T6506] R13: 00007fcaa6908eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 229.963071][ T6506]
[ 229.970788][ T6506] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
2025/12/14 02:34:56 executed programs: 363
[ 229.984650][ T6506] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 230.083655][ T6510] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 230.092085][ T6510] CPU: 1 PID: 6510 Comm: syz.2.366 Not tainted syzkaller #0
[ 230.099376][ T6510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 230.109421][ T6510] Call Trace:
[ 230.112694][ T6510]
[ 230.115622][ T6510] dump_stack_lvl+0x168/0x230
[ 230.120308][ T6510] ? show_regs_print_info+0x20/0x20
[ 230.125514][ T6510] ? load_image+0x3b0/0x3b0
[ 230.130038][ T6510] sysfs_create_dir_ns+0x252/0x280
[ 230.135153][ T6510] ? __lock_acquire+0x7c60/0x7c60
[ 230.140184][ T6510] ? sysfs_warn_dup+0xa0/0xa0
[ 230.144956][ T6510] ? do_raw_spin_unlock+0x11d/0x230
[ 230.150168][ T6510] kobject_add_internal+0x662/0xd00
[ 230.155378][ T6510] kobject_init_and_add+0x122/0x190
[ 230.160581][ T6510] ? lockdep_softirqs_off+0x420/0x420
[ 230.165961][ T6510] ? kobject_add+0x210/0x210
[ 230.170563][ T6510] ? __init_swait_queue_head+0xa5/0x150
[ 230.176114][ T6510] gfs2_sys_fs_add+0x234/0x480
[ 230.180882][ T6510] ? gfs2_recover_set+0x240/0x240
[ 230.185904][ T6510] ? snprintf+0xd7/0x120
[ 230.190147][ T6510] ? __free_pages+0x95/0x1a0
[ 230.194739][ T6510] ? vscnprintf+0x80/0x80
[ 230.199077][ T6510] gfs2_fill_super+0x128d/0x1f50
[ 230.204027][ T6510] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.209054][ T6510] ? preempt_count_add+0x8d/0x190
[ 230.214088][ T6510] ? sb_set_blocksize+0xa5/0xe0
[ 230.218938][ T6510] get_tree_bdev+0x3f1/0x610
[ 230.223530][ T6510] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.228554][ T6510] gfs2_get_tree+0x4d/0x1e0
[ 230.233056][ T6510] vfs_get_tree+0x88/0x270
[ 230.237473][ T6510] do_new_mount+0x24a/0xa40
[ 230.241983][ T6510] __se_sys_mount+0x2d6/0x3c0
[ 230.246669][ T6510] ? __x64_sys_mount+0xc0/0xc0
[ 230.251434][ T6510] ? lockdep_hardirqs_on+0x94/0x140
[ 230.253412][ T6517] loop3: detected capacity change from 0 to 32768
[ 230.256628][ T6510] ? __x64_sys_mount+0x1c/0xc0
[ 230.256652][ T6510] do_syscall_64+0x4c/0xa0
[ 230.272193][ T6510] ? clear_bhb_loop+0x30/0x80
[ 230.276877][ T6510] ? clear_bhb_loop+0x30/0x80
[ 230.281564][ T6510] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 230.287461][ T6510] RIP: 0033:0x7fdb5331090a
[ 230.291877][ T6510] 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
[ 230.311481][ T6510] RSP: 002b:00007fdb5257fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 230.319898][ T6510] RAX: ffffffffffffffda RBX: 00007fdb5257fef0 RCX: 00007fdb5331090a
[ 230.327875][ T6510] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdb5257feb0
[ 230.335854][ T6510] RBP: 0000200000000400 R08: 00007fdb5257fef0 R09: 0000000000000000
[ 230.343912][ T6510] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 230.351880][ T6510] R13: 00007fdb5257feb0 R14: 00000000000125bb R15: 00002000000004c0
[ 230.359868][ T6510]
[ 230.364426][ T6510] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 230.377572][ T6510] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 230.441102][ T6517] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 230.448533][ T6517] CPU: 0 PID: 6517 Comm: syz.3.369 Not tainted syzkaller #0
[ 230.455821][ T6517] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 230.465978][ T6517] Call Trace:
[ 230.469354][ T6517]
[ 230.472289][ T6517] dump_stack_lvl+0x168/0x230
[ 230.476981][ T6517] ? show_regs_print_info+0x20/0x20
[ 230.482195][ T6517] ? load_image+0x3b0/0x3b0
[ 230.486723][ T6517] sysfs_create_dir_ns+0x252/0x280
[ 230.491867][ T6517] ? __lock_acquire+0x7c60/0x7c60
[ 230.496897][ T6517] ? sysfs_warn_dup+0xa0/0xa0
[ 230.501584][ T6517] ? do_raw_spin_unlock+0x11d/0x230
[ 230.506789][ T6517] kobject_add_internal+0x662/0xd00
[ 230.511998][ T6517] kobject_init_and_add+0x122/0x190
[ 230.517202][ T6517] ? lockdep_softirqs_off+0x420/0x420
[ 230.522590][ T6517] ? kobject_add+0x210/0x210
[ 230.527195][ T6517] ? __init_swait_queue_head+0xa5/0x150
[ 230.532755][ T6517] gfs2_sys_fs_add+0x234/0x480
[ 230.537620][ T6517] ? gfs2_recover_set+0x240/0x240
[ 230.542648][ T6517] ? snprintf+0xd7/0x120
[ 230.546897][ T6517] ? __free_pages+0x95/0x1a0
[ 230.551495][ T6517] ? vscnprintf+0x80/0x80
[ 230.555844][ T6517] gfs2_fill_super+0x128d/0x1f50
[ 230.560803][ T6517] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.565841][ T6517] ? preempt_count_add+0x8d/0x190
[ 230.570978][ T6517] ? sb_set_blocksize+0xa5/0xe0
[ 230.575846][ T6517] get_tree_bdev+0x3f1/0x610
[ 230.580448][ T6517] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.585482][ T6517] gfs2_get_tree+0x4d/0x1e0
[ 230.589996][ T6517] vfs_get_tree+0x88/0x270
[ 230.594419][ T6517] do_new_mount+0x24a/0xa40
[ 230.598972][ T6517] __se_sys_mount+0x2d6/0x3c0
[ 230.603660][ T6517] ? __x64_sys_mount+0xc0/0xc0
[ 230.608431][ T6517] ? lockdep_hardirqs_on+0x94/0x140
[ 230.613636][ T6517] ? __x64_sys_mount+0x1c/0xc0
[ 230.618401][ T6517] do_syscall_64+0x4c/0xa0
[ 230.622819][ T6517] ? clear_bhb_loop+0x30/0x80
[ 230.627505][ T6517] ? clear_bhb_loop+0x30/0x80
[ 230.632190][ T6517] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 230.638094][ T6517] RIP: 0033:0x7f33eeb1a90a
[ 230.642513][ T6517] 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
[ 230.662121][ T6517] RSP: 002b:00007f33edd89e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 230.670542][ T6517] RAX: ffffffffffffffda RBX: 00007f33edd89ef0 RCX: 00007f33eeb1a90a
[ 230.678520][ T6517] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33edd89eb0
[ 230.686497][ T6517] RBP: 0000200000000400 R08: 00007f33edd89ef0 R09: 0000000000000000
[ 230.694471][ T6517] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 230.702444][ T6517] R13: 00007f33edd89eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 230.710432][ T6517]
[ 230.713602][ T6517] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 230.726750][ T6517] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 231.231237][ T6523] loop2: detected capacity change from 0 to 32768
[ 231.314737][ T6523] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 231.315340][ T6525] loop3: detected capacity change from 0 to 32768
[ 231.322125][ T6523] CPU: 0 PID: 6523 Comm: syz.2.371 Not tainted syzkaller #0
[ 231.335782][ T6523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 231.342465][ T6525] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 231.345832][ T6523] Call Trace:
[ 231.345841][ T6523]
[ 231.345848][ T6523] dump_stack_lvl+0x168/0x230
[ 231.345873][ T6523] ? show_regs_print_info+0x20/0x20
[ 231.369205][ T6523] ? load_image+0x3b0/0x3b0
[ 231.373708][ T6523] sysfs_create_dir_ns+0x252/0x280
[ 231.378809][ T6523] ? __lock_acquire+0x7c60/0x7c60
[ 231.383827][ T6523] ? sysfs_warn_dup+0xa0/0xa0
[ 231.388494][ T6523] ? do_raw_spin_unlock+0x11d/0x230
[ 231.393689][ T6523] kobject_add_internal+0x662/0xd00
[ 231.398884][ T6523] kobject_init_and_add+0x122/0x190
[ 231.404072][ T6523] ? lockdep_softirqs_off+0x420/0x420
[ 231.409440][ T6523] ? kobject_add+0x210/0x210
[ 231.414024][ T6523] ? __init_swait_queue_head+0xa5/0x150
[ 231.419567][ T6523] gfs2_sys_fs_add+0x234/0x480
[ 231.424327][ T6523] ? gfs2_recover_set+0x240/0x240
[ 231.429340][ T6523] ? snprintf+0xd7/0x120
[ 231.433571][ T6523] ? __free_pages+0x95/0x1a0
[ 231.438158][ T6523] ? vscnprintf+0x80/0x80
[ 231.442489][ T6523] gfs2_fill_super+0x128d/0x1f50
[ 231.447432][ T6523] ? gfs2_reconfigure+0xcd0/0xcd0
[ 231.452450][ T6523] ? preempt_count_add+0x8d/0x190
[ 231.457479][ T6523] ? sb_set_blocksize+0xa5/0xe0
[ 231.462324][ T6523] get_tree_bdev+0x3f1/0x610
[ 231.466906][ T6523] ? gfs2_reconfigure+0xcd0/0xcd0
[ 231.471922][ T6523] gfs2_get_tree+0x4d/0x1e0
[ 231.476503][ T6523] vfs_get_tree+0x88/0x270
[ 231.480910][ T6523] do_new_mount+0x24a/0xa40
[ 231.485407][ T6523] __se_sys_mount+0x2d6/0x3c0
[ 231.490078][ T6523] ? __x64_sys_mount+0xc0/0xc0
[ 231.494839][ T6523] ? lockdep_hardirqs_on+0x94/0x140
[ 231.500040][ T6523] ? __x64_sys_mount+0x1c/0xc0
[ 231.504800][ T6523] do_syscall_64+0x4c/0xa0
[ 231.509281][ T6523] ? clear_bhb_loop+0x30/0x80
[ 231.514011][ T6523] ? clear_bhb_loop+0x30/0x80
[ 231.518686][ T6523] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 231.524571][ T6523] RIP: 0033:0x7fdb5331090a
[ 231.528979][ T6523] 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
[ 231.548579][ T6523] RSP: 002b:00007fdb5257fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 231.556985][ T6523] RAX: ffffffffffffffda RBX: 00007fdb5257fef0 RCX: 00007fdb5331090a
[ 231.564947][ T6523] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdb5257feb0
[ 231.572997][ T6523] RBP: 0000200000000400 R08: 00007fdb5257fef0 R09: 0000000000000000
[ 231.580955][ T6523] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 231.588914][ T6523] R13: 00007fdb5257feb0 R14: 00000000000125bb R15: 00002000000004c0
[ 231.596889][ T6523]
[ 231.599993][ T6525] CPU: 1 PID: 6525 Comm: syz.3.372 Not tainted syzkaller #0
[ 231.600743][ T6523] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 231.607275][ T6525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 231.607287][ T6525] Call Trace:
[ 231.607293][ T6525]
[ 231.607302][ T6525] dump_stack_lvl+0x168/0x230
[ 231.620569][ T6523] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 231.630587][ T6525] ? show_regs_print_info+0x20/0x20
[ 231.630608][ T6525] ? load_image+0x3b0/0x3b0
[ 231.657603][ T6525] sysfs_create_dir_ns+0x252/0x280
[ 231.662729][ T6525] ? __lock_acquire+0x7c60/0x7c60
[ 231.667762][ T6525] ? sysfs_warn_dup+0xa0/0xa0
[ 231.672453][ T6525] ? do_raw_spin_unlock+0x11d/0x230
[ 231.677661][ T6525] kobject_add_internal+0x662/0xd00
[ 231.682878][ T6525] kobject_init_and_add+0x122/0x190
[ 231.688079][ T6525] ? lockdep_softirqs_off+0x420/0x420
[ 231.693461][ T6525] ? kobject_add+0x210/0x210
[ 231.698068][ T6525] ? __init_swait_queue_head+0xa5/0x150
[ 231.703626][ T6525] gfs2_sys_fs_add+0x234/0x480
[ 231.708400][ T6525] ? gfs2_recover_set+0x240/0x240
[ 231.713430][ T6525] ? snprintf+0xd7/0x120
[ 231.717678][ T6525] ? __free_pages+0x95/0x1a0
[ 231.722282][ T6525] ? vscnprintf+0x80/0x80
[ 231.726718][ T6525] gfs2_fill_super+0x128d/0x1f50
[ 231.731764][ T6525] ? gfs2_reconfigure+0xcd0/0xcd0
[ 231.736811][ T6525] ? preempt_count_add+0x8d/0x190
[ 231.741874][ T6525] ? sb_set_blocksize+0xa5/0xe0
[ 231.746739][ T6525] get_tree_bdev+0x3f1/0x610
[ 231.751340][ T6525] ? gfs2_reconfigure+0xcd0/0xcd0
[ 231.756374][ T6525] gfs2_get_tree+0x4d/0x1e0
[ 231.760885][ T6525] vfs_get_tree+0x88/0x270
[ 231.765311][ T6525] do_new_mount+0x24a/0xa40
[ 231.769829][ T6525] __se_sys_mount+0x2d6/0x3c0
[ 231.774526][ T6525] ? __x64_sys_mount+0xc0/0xc0
[ 231.779299][ T6525] ? lockdep_hardirqs_on+0x94/0x140
[ 231.784506][ T6525] ? __x64_sys_mount+0x1c/0xc0
[ 231.789280][ T6525] do_syscall_64+0x4c/0xa0
[ 231.793715][ T6525] ? clear_bhb_loop+0x30/0x80
[ 231.798398][ T6525] ? clear_bhb_loop+0x30/0x80
[ 231.803087][ T6525] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 231.808988][ T6525] RIP: 0033:0x7f33eeb1a90a
[ 231.813408][ T6525] 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
[ 231.833018][ T6525] RSP: 002b:00007f33edd89e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 231.841531][ T6525] RAX: ffffffffffffffda RBX: 00007f33edd89ef0 RCX: 00007f33eeb1a90a
[ 231.849512][ T6525] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33edd89eb0
[ 231.857495][ T6525] RBP: 0000200000000400 R08: 00007f33edd89ef0 R09: 0000000000000000
[ 231.865564][ T6525] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 231.873631][ T6525] R13: 00007f33edd89eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 231.881625][ T6525]
[ 231.885843][ T6525] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 231.899375][ T6525] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 232.263153][ T6530] loop3: detected capacity change from 0 to 32768
[ 232.359434][ T6514] loop0: detected capacity change from 0 to 32768
[ 232.425913][ T6530] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 232.433311][ T6530] CPU: 1 PID: 6530 Comm: syz.3.374 Not tainted syzkaller #0
[ 232.436693][ T6514] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 232.440719][ T6530] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 232.440731][ T6530] Call Trace:
[ 232.440737][ T6530]
[ 232.440745][ T6530] dump_stack_lvl+0x168/0x230
[ 232.440770][ T6530] ? show_regs_print_info+0x20/0x20
[ 232.440787][ T6530] ? load_image+0x3b0/0x3b0
[ 232.440814][ T6530] sysfs_create_dir_ns+0x252/0x280
[ 232.440835][ T6530] ? __lock_acquire+0x7c60/0x7c60
[ 232.440855][ T6530] ? sysfs_warn_dup+0xa0/0xa0
[ 232.440878][ T6530] ? do_raw_spin_unlock+0x11d/0x230
[ 232.440900][ T6530] kobject_add_internal+0x662/0xd00
[ 232.440926][ T6530] kobject_init_and_add+0x122/0x190
[ 232.440958][ T6530] ? lockdep_softirqs_off+0x420/0x420
[ 232.440980][ T6530] ? kobject_add+0x210/0x210
[ 232.441008][ T6530] ? __init_swait_queue_head+0xa5/0x150
[ 232.441033][ T6530] gfs2_sys_fs_add+0x234/0x480
[ 232.441055][ T6530] ? gfs2_recover_set+0x240/0x240
[ 232.441073][ T6530] ? snprintf+0xd7/0x120
[ 232.441092][ T6530] ? __free_pages+0x95/0x1a0
[ 232.441114][ T6530] ? vscnprintf+0x80/0x80
[ 232.441144][ T6530] gfs2_fill_super+0x128d/0x1f50
[ 232.441172][ T6530] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.557862][ T6530] ? preempt_count_add+0x8d/0x190
[ 232.562910][ T6530] ? sb_set_blocksize+0xa5/0xe0
[ 232.565010][ T6518] loop5: detected capacity change from 0 to 32768
[ 232.567767][ T6530] get_tree_bdev+0x3f1/0x610
[ 232.578830][ T6530] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.583876][ T6530] gfs2_get_tree+0x4d/0x1e0
[ 232.588392][ T6530] vfs_get_tree+0x88/0x270
[ 232.592824][ T6530] do_new_mount+0x24a/0xa40
[ 232.597343][ T6530] __se_sys_mount+0x2d6/0x3c0
[ 232.602040][ T6530] ? __x64_sys_mount+0xc0/0xc0
[ 232.606824][ T6530] ? lockdep_hardirqs_on+0x94/0x140
[ 232.612025][ T6530] ? __x64_sys_mount+0x1c/0xc0
[ 232.616800][ T6530] do_syscall_64+0x4c/0xa0
[ 232.621234][ T6530] ? clear_bhb_loop+0x30/0x80
[ 232.625918][ T6530] ? clear_bhb_loop+0x30/0x80
[ 232.630659][ T6530] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 232.636703][ T6530] RIP: 0033:0x7f33eeb1a90a
[ 232.641124][ T6530] 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
[ 232.660731][ T6530] RSP: 002b:00007f33edd89e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 232.669155][ T6530] RAX: ffffffffffffffda RBX: 00007f33edd89ef0 RCX: 00007f33eeb1a90a
[ 232.677133][ T6530] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33edd89eb0
[ 232.685116][ T6530] RBP: 0000200000000400 R08: 00007f33edd89ef0 R09: 0000000000000000
[ 232.693105][ T6530] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 232.701085][ T6530] R13: 00007f33edd89eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 232.709081][ T6530]
[ 232.713196][ T6530] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 232.726705][ T6530] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 232.735666][ T6514] CPU: 1 PID: 6514 Comm: syz.0.367 Not tainted syzkaller #0
[ 232.742966][ T6514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 232.753109][ T6514] Call Trace:
[ 232.756400][ T6514]
[ 232.759335][ T6514] dump_stack_lvl+0x168/0x230
[ 232.764025][ T6514] ? show_regs_print_info+0x20/0x20
[ 232.769236][ T6514] ? load_image+0x3b0/0x3b0
[ 232.773845][ T6514] sysfs_create_dir_ns+0x252/0x280
[ 232.778962][ T6514] ? __lock_acquire+0x7c60/0x7c60
[ 232.783990][ T6514] ? sysfs_warn_dup+0xa0/0xa0
[ 232.788681][ T6514] ? do_raw_spin_unlock+0x11d/0x230
[ 232.793988][ T6514] kobject_add_internal+0x662/0xd00
[ 232.799202][ T6514] kobject_init_and_add+0x122/0x190
[ 232.804588][ T6514] ? lockdep_softirqs_off+0x420/0x420
[ 232.809966][ T6514] ? kobject_add+0x210/0x210
[ 232.814600][ T6514] ? __init_swait_queue_head+0xa5/0x150
[ 232.820154][ T6514] gfs2_sys_fs_add+0x234/0x480
[ 232.824942][ T6514] ? gfs2_recover_set+0x240/0x240
[ 232.829978][ T6514] ? snprintf+0xd7/0x120
[ 232.834234][ T6514] ? __free_pages+0x95/0x1a0
[ 232.838831][ T6514] ? vscnprintf+0x80/0x80
[ 232.843179][ T6514] gfs2_fill_super+0x128d/0x1f50
[ 232.848139][ T6514] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.853172][ T6514] ? preempt_count_add+0x8d/0x190
[ 232.858212][ T6514] ? sb_set_blocksize+0xa5/0xe0
[ 232.863075][ T6514] get_tree_bdev+0x3f1/0x610
[ 232.867679][ T6514] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.872712][ T6514] gfs2_get_tree+0x4d/0x1e0
[ 232.877225][ T6514] vfs_get_tree+0x88/0x270
[ 232.881649][ T6514] do_new_mount+0x24a/0xa40
[ 232.886162][ T6514] __se_sys_mount+0x2d6/0x3c0
[ 232.890842][ T6514] ? __x64_sys_mount+0xc0/0xc0
[ 232.895616][ T6514] ? lockdep_hardirqs_on+0x94/0x140
[ 232.900826][ T6514] ? __x64_sys_mount+0x1c/0xc0
[ 232.905597][ T6514] do_syscall_64+0x4c/0xa0
[ 232.910021][ T6514] ? clear_bhb_loop+0x30/0x80
[ 232.914704][ T6514] ? clear_bhb_loop+0x30/0x80
[ 232.919391][ T6514] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 232.925289][ T6514] RIP: 0033:0x7effad95090a
[ 232.929709][ T6514] 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
[ 232.949322][ T6514] RSP: 002b:00007effacb9ee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 232.957746][ T6514] RAX: ffffffffffffffda RBX: 00007effacb9eef0 RCX: 00007effad95090a
[ 232.965726][ T6514] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007effacb9eeb0
[ 232.973705][ T6514] RBP: 0000200000000400 R08: 00007effacb9eef0 R09: 0000000000000000
[ 232.981684][ T6514] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 232.989660][ T6514] R13: 00007effacb9eeb0 R14: 00000000000125bb R15: 00002000000004c0
[ 232.997649][ T6514]
[ 233.023757][ T6520] loop4: detected capacity change from 0 to 32768
[ 233.093232][ T6520] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 233.113866][ T6520] CPU: 1 PID: 6520 Comm: syz.4.370 Not tainted syzkaller #0
[ 233.121195][ T6520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 233.131259][ T6520] Call Trace:
[ 233.134542][ T6520]
[ 233.137591][ T6520] dump_stack_lvl+0x168/0x230
[ 233.142286][ T6520] ? show_regs_print_info+0x20/0x20
[ 233.147496][ T6520] ? load_image+0x3b0/0x3b0
[ 233.152015][ T6520] sysfs_create_dir_ns+0x252/0x280
[ 233.157134][ T6520] ? __lock_acquire+0x7c60/0x7c60
[ 233.162166][ T6520] ? sysfs_warn_dup+0xa0/0xa0
[ 233.166976][ T6520] ? do_raw_spin_unlock+0x11d/0x230
[ 233.172201][ T6520] kobject_add_internal+0x662/0xd00
[ 233.177424][ T6520] kobject_init_and_add+0x122/0x190
[ 233.182629][ T6520] ? lockdep_softirqs_off+0x420/0x420
[ 233.188103][ T6520] ? kobject_add+0x210/0x210
[ 233.192699][ T6520] ? __init_swait_queue_head+0xa5/0x150
[ 233.198259][ T6520] gfs2_sys_fs_add+0x234/0x480
[ 233.203032][ T6520] ? gfs2_recover_set+0x240/0x240
[ 233.208063][ T6520] ? snprintf+0xd7/0x120
[ 233.212325][ T6520] ? __free_pages+0x95/0x1a0
[ 233.217015][ T6520] ? vscnprintf+0x80/0x80
[ 233.221359][ T6520] gfs2_fill_super+0x128d/0x1f50
[ 233.226318][ T6520] ? gfs2_reconfigure+0xcd0/0xcd0
[ 233.231357][ T6520] ? preempt_count_add+0x8d/0x190
[ 233.236583][ T6520] ? sb_set_blocksize+0xa5/0xe0
[ 233.241455][ T6520] get_tree_bdev+0x3f1/0x610
[ 233.246056][ T6520] ? gfs2_reconfigure+0xcd0/0xcd0
[ 233.251090][ T6520] gfs2_get_tree+0x4d/0x1e0
[ 233.255605][ T6520] vfs_get_tree+0x88/0x270
[ 233.260039][ T6520] do_new_mount+0x24a/0xa40
[ 233.264560][ T6520] __se_sys_mount+0x2d6/0x3c0
[ 233.269251][ T6520] ? __x64_sys_mount+0xc0/0xc0
[ 233.274133][ T6520] ? lockdep_hardirqs_on+0x94/0x140
[ 233.279342][ T6520] ? __x64_sys_mount+0x1c/0xc0
[ 233.284116][ T6520] do_syscall_64+0x4c/0xa0
[ 233.288539][ T6520] ? clear_bhb_loop+0x30/0x80
[ 233.293225][ T6520] ? clear_bhb_loop+0x30/0x80
[ 233.297913][ T6520] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 233.303811][ T6520] RIP: 0033:0x7fcaa769990a
[ 233.308231][ T6520] 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
[ 233.327844][ T6520] RSP: 002b:00007fcaa6908e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 233.336267][ T6520] RAX: ffffffffffffffda RBX: 00007fcaa6908ef0 RCX: 00007fcaa769990a
[ 233.344262][ T6520] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fcaa6908eb0
[ 233.352238][ T6520] RBP: 0000200000000400 R08: 00007fcaa6908ef0 R09: 0000000000000000
[ 233.360302][ T6520] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 233.364649][ T6514] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 233.368277][ T6520] R13: 00007fcaa6908eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 233.389328][ T6520]
[ 233.413705][ T6514] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 233.455437][ T6532] loop5: detected capacity change from 0 to 32768
[ 233.473009][ T6520] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 233.661603][ T6527] loop2: detected capacity change from 0 to 32768
[ 233.745616][ T6520] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 233.782606][ T6534] loop3: detected capacity change from 0 to 32768
[ 233.793499][ T6532] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 233.800951][ T6532] CPU: 0 PID: 6532 Comm: syz.5.375 Not tainted syzkaller #0
[ 233.808238][ T6532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 233.818383][ T6532] Call Trace:
[ 233.821673][ T6532]
[ 233.824610][ T6532] dump_stack_lvl+0x168/0x230
[ 233.829302][ T6532] ? show_regs_print_info+0x20/0x20
[ 233.834511][ T6532] ? load_image+0x3b0/0x3b0
[ 233.839029][ T6532] sysfs_create_dir_ns+0x252/0x280
[ 233.844151][ T6532] ? __lock_acquire+0x7c60/0x7c60
[ 233.849192][ T6532] ? sysfs_warn_dup+0xa0/0xa0
[ 233.853883][ T6532] ? do_raw_spin_unlock+0x11d/0x230
[ 233.859089][ T6532] kobject_add_internal+0x662/0xd00
[ 233.864819][ T6532] kobject_init_and_add+0x122/0x190
[ 233.870020][ T6532] ? lockdep_softirqs_off+0x420/0x420
[ 233.875401][ T6532] ? kobject_add+0x210/0x210
[ 233.880005][ T6532] ? __init_swait_queue_head+0xa5/0x150
[ 233.885555][ T6532] gfs2_sys_fs_add+0x234/0x480
[ 233.890416][ T6532] ? gfs2_recover_set+0x240/0x240
[ 233.895439][ T6532] ? snprintf+0xd7/0x120
[ 233.899770][ T6532] ? __free_pages+0x95/0x1a0
[ 233.904354][ T6532] ? vscnprintf+0x80/0x80
[ 233.908692][ T6532] gfs2_fill_super+0x128d/0x1f50
[ 233.913631][ T6532] ? gfs2_reconfigure+0xcd0/0xcd0
[ 233.918650][ T6532] ? preempt_count_add+0x8d/0x190
[ 233.923680][ T6532] ? sb_set_blocksize+0xa5/0xe0
[ 233.928517][ T6532] get_tree_bdev+0x3f1/0x610
[ 233.933096][ T6532] ? gfs2_reconfigure+0xcd0/0xcd0
[ 233.938111][ T6532] gfs2_get_tree+0x4d/0x1e0
[ 233.942613][ T6532] vfs_get_tree+0x88/0x270
[ 233.947024][ T6532] do_new_mount+0x24a/0xa40
[ 233.951533][ T6532] __se_sys_mount+0x2d6/0x3c0
[ 233.956216][ T6532] ? __x64_sys_mount+0xc0/0xc0
[ 233.960998][ T6532] ? lockdep_hardirqs_on+0x94/0x140
[ 233.966183][ T6532] ? __x64_sys_mount+0x1c/0xc0
[ 233.970930][ T6532] do_syscall_64+0x4c/0xa0
[ 233.975340][ T6532] ? clear_bhb_loop+0x30/0x80
[ 233.980017][ T6532] ? clear_bhb_loop+0x30/0x80
[ 233.984703][ T6532] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 233.990688][ T6532] RIP: 0033:0x7fa05610190a
[ 233.995089][ T6532] 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
[ 234.014697][ T6532] RSP: 002b:00007fa055370e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 234.023116][ T6532] RAX: ffffffffffffffda RBX: 00007fa055370ef0 RCX: 00007fa05610190a
[ 234.031074][ T6532] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fa055370eb0
[ 234.039033][ T6532] RBP: 0000200000000400 R08: 00007fa055370ef0 R09: 0000000000000000
[ 234.046993][ T6532] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 234.055148][ T6532] R13: 00007fa055370eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 234.063143][ T6532]
[ 234.066214][ T6532] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 234.079338][ T6532] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 234.098478][ T6534] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 234.105950][ T6534] CPU: 0 PID: 6534 Comm: syz.3.376 Not tainted syzkaller #0
[ 234.111879][ T6527] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 234.113410][ T6534] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 234.130812][ T6534] Call Trace:
[ 234.134098][ T6534]
[ 234.137039][ T6534] dump_stack_lvl+0x168/0x230
[ 234.141730][ T6534] ? show_regs_print_info+0x20/0x20
[ 234.146941][ T6534] ? load_image+0x3b0/0x3b0
[ 234.151468][ T6534] sysfs_create_dir_ns+0x252/0x280
[ 234.156591][ T6534] ? __lock_acquire+0x7c60/0x7c60
[ 234.161650][ T6534] ? sysfs_warn_dup+0xa0/0xa0
[ 234.166364][ T6534] ? do_raw_spin_unlock+0x11d/0x230
[ 234.171576][ T6534] kobject_add_internal+0x662/0xd00
[ 234.176790][ T6534] kobject_init_and_add+0x122/0x190
[ 234.181992][ T6534] ? lockdep_softirqs_off+0x420/0x420
[ 234.187368][ T6534] ? kobject_add+0x210/0x210
[ 234.191962][ T6534] ? __init_swait_queue_head+0xa5/0x150
[ 234.197509][ T6534] gfs2_sys_fs_add+0x234/0x480
[ 234.202289][ T6534] ? gfs2_recover_set+0x240/0x240
[ 234.207317][ T6534] ? snprintf+0xd7/0x120
[ 234.211569][ T6534] ? __free_pages+0x95/0x1a0
[ 234.216172][ T6534] ? vscnprintf+0x80/0x80
[ 234.220519][ T6534] gfs2_fill_super+0x128d/0x1f50
[ 234.225476][ T6534] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.230512][ T6534] ? preempt_count_add+0x8d/0x190
[ 234.235558][ T6534] ? sb_set_blocksize+0xa5/0xe0
[ 234.240415][ T6534] get_tree_bdev+0x3f1/0x610
[ 234.245019][ T6534] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.250042][ T6534] gfs2_get_tree+0x4d/0x1e0
[ 234.254635][ T6534] vfs_get_tree+0x88/0x270
[ 234.259058][ T6534] do_new_mount+0x24a/0xa40
[ 234.263661][ T6534] __se_sys_mount+0x2d6/0x3c0
[ 234.268353][ T6534] ? __x64_sys_mount+0xc0/0xc0
[ 234.273140][ T6534] ? lockdep_hardirqs_on+0x94/0x140
[ 234.278341][ T6534] ? __x64_sys_mount+0x1c/0xc0
[ 234.283117][ T6534] do_syscall_64+0x4c/0xa0
[ 234.287707][ T6534] ? clear_bhb_loop+0x30/0x80
[ 234.292386][ T6534] ? clear_bhb_loop+0x30/0x80
[ 234.297072][ T6534] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 234.302970][ T6534] RIP: 0033:0x7f33eeb1a90a
[ 234.307388][ T6534] 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
[ 234.326990][ T6534] RSP: 002b:00007f33edd89e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 234.335414][ T6534] RAX: ffffffffffffffda RBX: 00007f33edd89ef0 RCX: 00007f33eeb1a90a
[ 234.343388][ T6534] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33edd89eb0
[ 234.351359][ T6534] RBP: 0000200000000400 R08: 00007f33edd89ef0 R09: 0000000000000000
[ 234.359332][ T6534] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 234.367742][ T6534] R13: 00007f33edd89eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 234.375748][ T6534]
[ 234.379815][ T6534] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 234.384053][ T6527] CPU: 1 PID: 6527 Comm: syz.2.373 Not tainted syzkaller #0
[ 234.393604][ T6534] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 234.400185][ T6527] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 234.400198][ T6527] Call Trace:
[ 234.400204][ T6527]
[ 234.400212][ T6527] dump_stack_lvl+0x168/0x230
[ 234.427600][ T6527] ? show_regs_print_info+0x20/0x20
[ 234.432809][ T6527] ? load_image+0x3b0/0x3b0
[ 234.437333][ T6527] sysfs_create_dir_ns+0x252/0x280
[ 234.442452][ T6527] ? __lock_acquire+0x7c60/0x7c60
[ 234.447481][ T6527] ? sysfs_warn_dup+0xa0/0xa0
[ 234.452169][ T6527] ? do_raw_spin_unlock+0x11d/0x230
[ 234.457370][ T6527] kobject_add_internal+0x662/0xd00
[ 234.462591][ T6527] kobject_init_and_add+0x122/0x190
[ 234.467796][ T6527] ? lockdep_softirqs_off+0x420/0x420
[ 234.473195][ T6527] ? kobject_add+0x210/0x210
[ 234.477791][ T6527] ? __init_swait_queue_head+0xa5/0x150
[ 234.483344][ T6527] gfs2_sys_fs_add+0x234/0x480
[ 234.488114][ T6527] ? gfs2_recover_set+0x240/0x240
[ 234.493143][ T6527] ? snprintf+0xd7/0x120
[ 234.497386][ T6527] ? __free_pages+0x95/0x1a0
[ 234.501982][ T6527] ? vscnprintf+0x80/0x80
[ 234.506322][ T6527] gfs2_fill_super+0x128d/0x1f50
[ 234.511269][ T6527] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.516292][ T6527] ? preempt_count_add+0x8d/0x190
[ 234.521338][ T6527] ? sb_set_blocksize+0xa5/0xe0
[ 234.526194][ T6527] get_tree_bdev+0x3f1/0x610
[ 234.530794][ T6527] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.535825][ T6527] gfs2_get_tree+0x4d/0x1e0
[ 234.540342][ T6527] vfs_get_tree+0x88/0x270
[ 234.544773][ T6527] do_new_mount+0x24a/0xa40
[ 234.549290][ T6527] __se_sys_mount+0x2d6/0x3c0
[ 234.554092][ T6527] ? __x64_sys_mount+0xc0/0xc0
[ 234.558904][ T6527] ? lockdep_hardirqs_on+0x94/0x140
[ 234.564206][ T6527] ? __x64_sys_mount+0x1c/0xc0
[ 234.568991][ T6527] do_syscall_64+0x4c/0xa0
[ 234.573454][ T6527] ? clear_bhb_loop+0x30/0x80
[ 234.578140][ T6527] ? clear_bhb_loop+0x30/0x80
[ 234.582827][ T6527] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 234.588723][ T6527] RIP: 0033:0x7fdb5331090a
[ 234.593153][ T6527] 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
[ 234.612770][ T6527] RSP: 002b:00007fdb5257fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 234.621207][ T6527] RAX: ffffffffffffffda RBX: 00007fdb5257fef0 RCX: 00007fdb5331090a
[ 234.629192][ T6527] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdb5257feb0
[ 234.637300][ T6527] RBP: 0000200000000400 R08: 00007fdb5257fef0 R09: 0000000000000000
[ 234.645282][ T6527] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 234.653265][ T6527] R13: 00007fdb5257feb0 R14: 00000000000125bb R15: 00002000000004c0
[ 234.661266][ T6527]
[ 234.749844][ T6527] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 234.765097][ T6536] loop4: detected capacity change from 0 to 32768
[ 234.854512][ T6527] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.075489][ T6538] loop5: detected capacity change from 0 to 32768
[ 235.083362][ T6536] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.091217][ T6536] CPU: 1 PID: 6536 Comm: syz.4.378 Not tainted syzkaller #0
[ 235.098514][ T6536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 235.108578][ T6536] Call Trace:
[ 235.111864][ T6536]
[ 235.114803][ T6536] dump_stack_lvl+0x168/0x230
[ 235.119489][ T6536] ? show_regs_print_info+0x20/0x20
[ 235.124783][ T6536] ? load_image+0x3b0/0x3b0
[ 235.129301][ T6536] sysfs_create_dir_ns+0x252/0x280
[ 235.134424][ T6536] ? __lock_acquire+0x7c60/0x7c60
[ 235.139452][ T6536] ? sysfs_warn_dup+0xa0/0xa0
[ 235.144131][ T6536] ? do_raw_spin_unlock+0x11d/0x230
[ 235.149334][ T6536] kobject_add_internal+0x662/0xd00
[ 235.154545][ T6536] kobject_init_and_add+0x122/0x190
[ 235.159746][ T6536] ? lockdep_softirqs_off+0x420/0x420
[ 235.165125][ T6536] ? kobject_add+0x210/0x210
[ 235.169723][ T6536] ? __init_swait_queue_head+0xa5/0x150
[ 235.175274][ T6536] gfs2_sys_fs_add+0x234/0x480
[ 235.180043][ T6536] ? gfs2_recover_set+0x240/0x240
[ 235.185069][ T6536] ? snprintf+0xd7/0x120
[ 235.189314][ T6536] ? __free_pages+0x95/0x1a0
[ 235.193907][ T6536] ? vscnprintf+0x80/0x80
[ 235.198336][ T6536] gfs2_fill_super+0x128d/0x1f50
[ 235.203292][ T6536] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.208341][ T6536] ? preempt_count_add+0x8d/0x190
[ 235.213410][ T6536] ? sb_set_blocksize+0xa5/0xe0
[ 235.218264][ T6536] get_tree_bdev+0x3f1/0x610
[ 235.222861][ T6536] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.227888][ T6536] gfs2_get_tree+0x4d/0x1e0
[ 235.232396][ T6536] vfs_get_tree+0x88/0x270
[ 235.236813][ T6536] do_new_mount+0x24a/0xa40
[ 235.241321][ T6536] __se_sys_mount+0x2d6/0x3c0
[ 235.246000][ T6536] ? __x64_sys_mount+0xc0/0xc0
[ 235.250768][ T6536] ? lockdep_hardirqs_on+0x94/0x140
[ 235.255968][ T6536] ? __x64_sys_mount+0x1c/0xc0
[ 235.260736][ T6536] do_syscall_64+0x4c/0xa0
[ 235.263410][ T6538] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.265161][ T6536] ? clear_bhb_loop+0x30/0x80
[ 235.265183][ T6536] ? clear_bhb_loop+0x30/0x80
[ 235.265201][ T6536] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 235.265218][ T6536] RIP: 0033:0x7fcaa769990a
[ 235.265237][ T6536] 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
[ 235.265253][ T6536] RSP: 002b:00007fcaa6908e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.265273][ T6536] RAX: ffffffffffffffda RBX: 00007fcaa6908ef0 RCX: 00007fcaa769990a
[ 235.265285][ T6536] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fcaa6908eb0
[ 235.265296][ T6536] RBP: 0000200000000400 R08: 00007fcaa6908ef0 R09: 0000000000000000
[ 235.265307][ T6536] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 235.265319][ T6536] R13: 00007fcaa6908eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 235.265345][ T6536]
[ 235.266420][ T6536] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.272987][ T6538] CPU: 0 PID: 6538 Comm: syz.5.380 Not tainted syzkaller #0
[ 235.277686][ T6536] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.282294][ T6538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 235.400392][ T6538] Call Trace:
[ 235.403678][ T6538]
[ 235.406611][ T6538] dump_stack_lvl+0x168/0x230
[ 235.411300][ T6538] ? show_regs_print_info+0x20/0x20
[ 235.416507][ T6538] ? load_image+0x3b0/0x3b0
[ 235.421027][ T6538] sysfs_create_dir_ns+0x252/0x280
[ 235.426150][ T6538] ? __lock_acquire+0x7c60/0x7c60
[ 235.431181][ T6538] ? sysfs_warn_dup+0xa0/0xa0
[ 235.435869][ T6538] ? do_raw_spin_unlock+0x11d/0x230
[ 235.441154][ T6538] kobject_add_internal+0x662/0xd00
[ 235.446355][ T6538] kobject_init_and_add+0x122/0x190
[ 235.451704][ T6538] ? lockdep_softirqs_off+0x420/0x420
[ 235.457096][ T6538] ? kobject_add+0x210/0x210
[ 235.461708][ T6538] ? __init_swait_queue_head+0xa5/0x150
[ 235.467273][ T6538] gfs2_sys_fs_add+0x234/0x480
[ 235.472047][ T6538] ? gfs2_recover_set+0x240/0x240
[ 235.477074][ T6538] ? snprintf+0xd7/0x120
[ 235.481321][ T6538] ? __free_pages+0x95/0x1a0
[ 235.485915][ T6538] ? vscnprintf+0x80/0x80
[ 235.490259][ T6538] gfs2_fill_super+0x128d/0x1f50
[ 235.495222][ T6538] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.500252][ T6538] ? preempt_count_add+0x8d/0x190
[ 235.505298][ T6538] ? sb_set_blocksize+0xa5/0xe0
[ 235.510158][ T6538] get_tree_bdev+0x3f1/0x610
[ 235.514764][ T6538] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.519800][ T6538] gfs2_get_tree+0x4d/0x1e0
[ 235.524310][ T6538] vfs_get_tree+0x88/0x270
[ 235.528732][ T6538] do_new_mount+0x24a/0xa40
[ 235.533246][ T6538] __se_sys_mount+0x2d6/0x3c0
[ 235.538018][ T6538] ? __x64_sys_mount+0xc0/0xc0
[ 235.542791][ T6538] ? lockdep_hardirqs_on+0x94/0x140
[ 235.547991][ T6538] ? __x64_sys_mount+0x1c/0xc0
[ 235.552773][ T6538] do_syscall_64+0x4c/0xa0
[ 235.557195][ T6538] ? clear_bhb_loop+0x30/0x80
[ 235.561876][ T6538] ? clear_bhb_loop+0x30/0x80
[ 235.566569][ T6538] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 235.572464][ T6538] RIP: 0033:0x7fa05610190a
[ 235.577008][ T6538] 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
[ 235.596623][ T6538] RSP: 002b:00007fa055370e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.597956][ T6542] loop0: detected capacity change from 0 to 32768
[ 235.605054][ T6538] RAX: ffffffffffffffda RBX: 00007fa055370ef0 RCX: 00007fa05610190a
[ 235.605076][ T6538] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fa055370eb0
[ 235.605087][ T6538] RBP: 0000200000000400 R08: 00007fa055370ef0 R09: 0000000000000000
[ 235.605099][ T6538] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 235.605110][ T6538] R13: 00007fa055370eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 235.651249][ T6538]
[ 235.654394][ T6538] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.667526][ T6538] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.705214][ T6542] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.712664][ T6542] CPU: 1 PID: 6542 Comm: syz.0.377 Not tainted syzkaller #0
[ 235.719984][ T6542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 235.730045][ T6542] Call Trace:
[ 235.733333][ T6542]
[ 235.736266][ T6542] dump_stack_lvl+0x168/0x230
[ 235.740950][ T6542] ? show_regs_print_info+0x20/0x20
[ 235.746151][ T6542] ? load_image+0x3b0/0x3b0
[ 235.750670][ T6542] sysfs_create_dir_ns+0x252/0x280
[ 235.755798][ T6542] ? __lock_acquire+0x7c60/0x7c60
[ 235.760836][ T6542] ? sysfs_warn_dup+0xa0/0xa0
[ 235.765531][ T6542] ? do_raw_spin_unlock+0x11d/0x230
[ 235.770743][ T6542] kobject_add_internal+0x662/0xd00
[ 235.775959][ T6542] kobject_init_and_add+0x122/0x190
[ 235.781165][ T6542] ? lockdep_softirqs_off+0x420/0x420
[ 235.786547][ T6542] ? kobject_add+0x210/0x210
[ 235.791154][ T6542] ? __init_swait_queue_head+0xa5/0x150
[ 235.796711][ T6542] gfs2_sys_fs_add+0x234/0x480
[ 235.801486][ T6542] ? gfs2_recover_set+0x240/0x240
[ 235.806519][ T6542] ? snprintf+0xd7/0x120
[ 235.810771][ T6542] ? __free_pages+0x95/0x1a0
[ 235.815368][ T6542] ? vscnprintf+0x80/0x80
[ 235.819722][ T6542] gfs2_fill_super+0x128d/0x1f50
[ 235.824679][ T6542] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.829834][ T6542] ? preempt_count_add+0x8d/0x190
[ 235.834894][ T6542] ? sb_set_blocksize+0xa5/0xe0
[ 235.839775][ T6542] get_tree_bdev+0x3f1/0x610
[ 235.844375][ T6542] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.849413][ T6542] gfs2_get_tree+0x4d/0x1e0
[ 235.853924][ T6542] vfs_get_tree+0x88/0x270
[ 235.858351][ T6542] do_new_mount+0x24a/0xa40
[ 235.862866][ T6542] __se_sys_mount+0x2d6/0x3c0
[ 235.867553][ T6542] ? __x64_sys_mount+0xc0/0xc0
[ 235.872325][ T6542] ? lockdep_hardirqs_on+0x94/0x140
[ 235.877527][ T6542] ? __x64_sys_mount+0x1c/0xc0
[ 235.882301][ T6542] do_syscall_64+0x4c/0xa0
[ 235.886738][ T6542] ? clear_bhb_loop+0x30/0x80
[ 235.891445][ T6542] ? clear_bhb_loop+0x30/0x80
[ 235.896123][ T6542] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 235.902013][ T6542] RIP: 0033:0x7effad95090a
[ 235.906430][ T6542] 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
[ 235.926043][ T6542] RSP: 002b:00007effacbbfe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.934470][ T6542] RAX: ffffffffffffffda RBX: 00007effacbbfef0 RCX: 00007effad95090a
[ 235.942452][ T6542] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007effacbbfeb0
2025/12/14 02:35:02 executed programs: 375
[ 235.950613][ T6542] RBP: 0000200000000400 R08: 00007effacbbfef0 R09: 0000000000000000
[ 235.958600][ T6542] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 235.966583][ T6542] R13: 00007effacbbfeb0 R14: 00000000000125bb R15: 00002000000004c0
[ 235.974585][ T6542]
[ 235.979768][ T6542] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.992942][ T6542] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 236.864393][ T6552] loop4: detected capacity change from 0 to 32768
[ 237.162715][ T6557] loop3: detected capacity change from 0 to 32768
[ 237.510704][ T1108] Bluetooth: hci5: command 0x0406 tx timeout
[ 237.822735][ T6562] loop2: detected capacity change from 0 to 32768
[ 237.997108][ T6552] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 238.004637][ T6552] CPU: 1 PID: 6552 Comm: syz.4.388 Not tainted syzkaller #0
[ 238.011928][ T6552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 238.022079][ T6552] Call Trace:
[ 238.025364][ T6552]
[ 238.028301][ T6552] dump_stack_lvl+0x168/0x230
[ 238.032982][ T6552] ? show_regs_print_info+0x20/0x20
[ 238.038222][ T6552] ? load_image+0x3b0/0x3b0
[ 238.042742][ T6552] sysfs_create_dir_ns+0x252/0x280
[ 238.047863][ T6552] ? __lock_acquire+0x7c60/0x7c60
[ 238.052900][ T6552] ? sysfs_warn_dup+0xa0/0xa0
[ 238.057584][ T6552] ? do_raw_spin_unlock+0x11d/0x230
[ 238.062785][ T6552] kobject_add_internal+0x662/0xd00
[ 238.067991][ T6552] kobject_init_and_add+0x122/0x190
[ 238.073211][ T6552] ? lockdep_softirqs_off+0x420/0x420
[ 238.078592][ T6552] ? kobject_add+0x210/0x210
[ 238.083187][ T6552] ? __init_swait_queue_head+0xa5/0x150
[ 238.088739][ T6552] gfs2_sys_fs_add+0x234/0x480
[ 238.093507][ T6552] ? gfs2_recover_set+0x240/0x240
[ 238.098531][ T6552] ? snprintf+0xd7/0x120
[ 238.102789][ T6552] ? __free_pages+0x95/0x1a0
[ 238.107384][ T6552] ? vscnprintf+0x80/0x80
[ 238.111714][ T6552] gfs2_fill_super+0x128d/0x1f50
[ 238.116649][ T6552] ? gfs2_reconfigure+0xcd0/0xcd0
[ 238.121660][ T6552] ? preempt_count_add+0x8d/0x190
[ 238.126675][ T6552] ? sb_set_blocksize+0xa5/0xe0
[ 238.131514][ T6552] get_tree_bdev+0x3f1/0x610
[ 238.136092][ T6552] ? gfs2_reconfigure+0xcd0/0xcd0
[ 238.141145][ T6552] gfs2_get_tree+0x4d/0x1e0
[ 238.145632][ T6552] vfs_get_tree+0x88/0x270
[ 238.150034][ T6552] do_new_mount+0x24a/0xa40
[ 238.154528][ T6552] __se_sys_mount+0x2d6/0x3c0
[ 238.159211][ T6552] ? __x64_sys_mount+0xc0/0xc0
[ 238.163969][ T6552] ? lockdep_hardirqs_on+0x94/0x140
[ 238.169156][ T6552] ? __x64_sys_mount+0x1c/0xc0
[ 238.173906][ T6552] do_syscall_64+0x4c/0xa0
[ 238.178317][ T6552] ? clear_bhb_loop+0x30/0x80
[ 238.182984][ T6552] ? clear_bhb_loop+0x30/0x80
[ 238.187643][ T6552] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.193521][ T6552] RIP: 0033:0x7fcaa769990a
[ 238.197923][ T6552] 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
[ 238.217514][ T6552] RSP: 002b:00007fcaa6908e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.225914][ T6552] RAX: ffffffffffffffda RBX: 00007fcaa6908ef0 RCX: 00007fcaa769990a
[ 238.233964][ T6552] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fcaa6908eb0
[ 238.241928][ T6552] RBP: 0000200000000400 R08: 00007fcaa6908ef0 R09: 0000000000000000
[ 238.249882][ T6552] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 238.257836][ T6552] R13: 00007fcaa6908eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 238.265799][ T6552]
[ 238.269946][ T6552] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.284310][ T6552] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.317232][ T6562] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 238.324890][ T6562] CPU: 0 PID: 6562 Comm: syz.2.387 Not tainted syzkaller #0
[ 238.332180][ T6562] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 238.342237][ T6562] Call Trace:
[ 238.345521][ T6562]
[ 238.348454][ T6562] dump_stack_lvl+0x168/0x230
[ 238.353140][ T6562] ? show_regs_print_info+0x20/0x20
[ 238.358345][ T6562] ? load_image+0x3b0/0x3b0
[ 238.362874][ T6562] sysfs_create_dir_ns+0x252/0x280
[ 238.368004][ T6562] ? __lock_acquire+0x7c60/0x7c60
[ 238.373036][ T6562] ? sysfs_warn_dup+0xa0/0xa0
[ 238.377728][ T6562] ? do_raw_spin_unlock+0x11d/0x230
[ 238.382933][ T6562] kobject_add_internal+0x662/0xd00
[ 238.388146][ T6562] kobject_init_and_add+0x122/0x190
[ 238.393354][ T6562] ? lockdep_softirqs_off+0x420/0x420
[ 238.398745][ T6562] ? kobject_add+0x210/0x210
[ 238.403352][ T6562] ? __init_swait_queue_head+0xa5/0x150
[ 238.408913][ T6562] gfs2_sys_fs_add+0x234/0x480
[ 238.413683][ T6562] ? gfs2_recover_set+0x240/0x240
[ 238.418706][ T6562] ? snprintf+0xd7/0x120
[ 238.422954][ T6562] ? __free_pages+0x95/0x1a0
[ 238.427564][ T6562] ? vscnprintf+0x80/0x80
[ 238.431910][ T6562] gfs2_fill_super+0x128d/0x1f50
[ 238.436864][ T6562] ? gfs2_reconfigure+0xcd0/0xcd0
[ 238.441887][ T6562] ? preempt_count_add+0x8d/0x190
[ 238.446920][ T6562] ? sb_set_blocksize+0xa5/0xe0
[ 238.451769][ T6562] get_tree_bdev+0x3f1/0x610
[ 238.456361][ T6562] ? gfs2_reconfigure+0xcd0/0xcd0
[ 238.461395][ T6562] gfs2_get_tree+0x4d/0x1e0
[ 238.465906][ T6562] vfs_get_tree+0x88/0x270
[ 238.470332][ T6562] do_new_mount+0x24a/0xa40
[ 238.474849][ T6562] __se_sys_mount+0x2d6/0x3c0
[ 238.479535][ T6562] ? __x64_sys_mount+0xc0/0xc0
[ 238.484305][ T6562] ? lockdep_hardirqs_on+0x94/0x140
[ 238.489507][ T6562] ? __x64_sys_mount+0x1c/0xc0
[ 238.494281][ T6562] do_syscall_64+0x4c/0xa0
[ 238.498704][ T6562] ? clear_bhb_loop+0x30/0x80
[ 238.503383][ T6562] ? clear_bhb_loop+0x30/0x80
[ 238.508063][ T6562] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.513957][ T6562] RIP: 0033:0x7fdb5331090a
[ 238.518373][ T6562] 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
[ 238.537981][ T6562] RSP: 002b:00007fdb5257fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.546401][ T6562] RAX: ffffffffffffffda RBX: 00007fdb5257fef0 RCX: 00007fdb5331090a
[ 238.554377][ T6562] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdb5257feb0
[ 238.562349][ T6562] RBP: 0000200000000400 R08: 00007fdb5257fef0 R09: 0000000000000000
[ 238.570320][ T6562] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 238.578286][ T6562] R13: 00007fdb5257feb0 R14: 00000000000125bb R15: 00002000000004c0
[ 238.586272][ T6562]
[ 238.590214][ T6562] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.603344][ T6562] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.617322][ T6557] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 238.624758][ T6557] CPU: 0 PID: 6557 Comm: syz.3.385 Not tainted syzkaller #0
[ 238.632041][ T6557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 238.635381][ T6566] loop0: detected capacity change from 0 to 32768
[ 238.642090][ T6557] Call Trace:
[ 238.642099][ T6557]
[ 238.642106][ T6557] dump_stack_lvl+0x168/0x230
[ 238.642131][ T6557] ? show_regs_print_info+0x20/0x20
[ 238.664546][ T6557] ? load_image+0x3b0/0x3b0
[ 238.669067][ T6557] sysfs_create_dir_ns+0x252/0x280
[ 238.674183][ T6557] ? __lock_acquire+0x7c60/0x7c60
[ 238.679208][ T6557] ? sysfs_warn_dup+0xa0/0xa0
[ 238.683893][ T6557] ? do_raw_spin_unlock+0x11d/0x230
[ 238.689100][ T6557] kobject_add_internal+0x662/0xd00
[ 238.694319][ T6557] kobject_init_and_add+0x122/0x190
[ 238.699517][ T6557] ? lockdep_softirqs_off+0x420/0x420
[ 238.704894][ T6557] ? kobject_add+0x210/0x210
[ 238.709488][ T6557] ? __init_swait_queue_head+0xa5/0x150
[ 238.715037][ T6557] gfs2_sys_fs_add+0x234/0x480
[ 238.719803][ T6557] ? gfs2_recover_set+0x240/0x240
[ 238.724827][ T6557] ? snprintf+0xd7/0x120
[ 238.729069][ T6557] ? __free_pages+0x95/0x1a0
[ 238.733661][ T6557] ? vscnprintf+0x80/0x80
[ 238.738000][ T6557] gfs2_fill_super+0x128d/0x1f50
[ 238.742952][ T6557] ? gfs2_reconfigure+0xcd0/0xcd0
[ 238.747979][ T6557] ? preempt_count_add+0x8d/0x190
[ 238.753006][ T6557] ? sb_set_blocksize+0xa5/0xe0
[ 238.757839][ T6557] get_tree_bdev+0x3f1/0x610
[ 238.762414][ T6557] ? gfs2_reconfigure+0xcd0/0xcd0
[ 238.767424][ T6557] gfs2_get_tree+0x4d/0x1e0
[ 238.771925][ T6557] vfs_get_tree+0x88/0x270
[ 238.776325][ T6557] do_new_mount+0x24a/0xa40
[ 238.780813][ T6557] __se_sys_mount+0x2d6/0x3c0
[ 238.785475][ T6557] ? __x64_sys_mount+0xc0/0xc0
[ 238.790244][ T6557] ? lockdep_hardirqs_on+0x94/0x140
[ 238.795442][ T6557] ? __x64_sys_mount+0x1c/0xc0
[ 238.800185][ T6557] do_syscall_64+0x4c/0xa0
[ 238.804584][ T6557] ? clear_bhb_loop+0x30/0x80
[ 238.809258][ T6557] ? clear_bhb_loop+0x30/0x80
[ 238.813927][ T6557] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.819800][ T6557] RIP: 0033:0x7f33eeb1a90a
[ 238.824203][ T6557] 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
[ 238.843807][ T6557] RSP: 002b:00007f33edd89e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.852227][ T6557] RAX: ffffffffffffffda RBX: 00007f33edd89ef0 RCX: 00007f33eeb1a90a
[ 238.860182][ T6557] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33edd89eb0
[ 238.868138][ T6557] RBP: 0000200000000400 R08: 00007f33edd89ef0 R09: 0000000000000000
[ 238.876105][ T6557] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 238.884057][ T6557] R13: 00007f33edd89eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 238.892026][ T6557]
[ 238.895130][ T6557] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.908254][ T6557] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.925754][ T6568] loop5: detected capacity change from 0 to 32768
[ 239.017310][ T6566] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 239.024855][ T6568] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 239.032222][ T6568] CPU: 1 PID: 6568 Comm: syz.5.393 Not tainted syzkaller #0
[ 239.039504][ T6568] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 239.049652][ T6568] Call Trace:
[ 239.052935][ T6568]
[ 239.055863][ T6568] dump_stack_lvl+0x168/0x230
[ 239.060548][ T6568] ? show_regs_print_info+0x20/0x20
[ 239.065753][ T6568] ? load_image+0x3b0/0x3b0
[ 239.070280][ T6568] sysfs_create_dir_ns+0x252/0x280
[ 239.075401][ T6568] ? __lock_acquire+0x7c60/0x7c60
[ 239.080435][ T6568] ? sysfs_warn_dup+0xa0/0xa0
[ 239.085125][ T6568] ? do_raw_spin_unlock+0x11d/0x230
[ 239.090334][ T6568] kobject_add_internal+0x662/0xd00
[ 239.095546][ T6568] kobject_init_and_add+0x122/0x190
[ 239.100742][ T6568] ? lockdep_softirqs_off+0x420/0x420
[ 239.106210][ T6568] ? kobject_add+0x210/0x210
[ 239.110815][ T6568] ? __init_swait_queue_head+0xa5/0x150
[ 239.116368][ T6568] gfs2_sys_fs_add+0x234/0x480
[ 239.121131][ T6568] ? gfs2_recover_set+0x240/0x240
[ 239.126155][ T6568] ? snprintf+0xd7/0x120
[ 239.130398][ T6568] ? __free_pages+0x95/0x1a0
[ 239.134991][ T6568] ? vscnprintf+0x80/0x80
[ 239.139352][ T6568] gfs2_fill_super+0x128d/0x1f50
[ 239.144313][ T6568] ? gfs2_reconfigure+0xcd0/0xcd0
[ 239.149354][ T6568] ? preempt_count_add+0x8d/0x190
[ 239.154409][ T6568] ? sb_set_blocksize+0xa5/0xe0
[ 239.159272][ T6568] get_tree_bdev+0x3f1/0x610
[ 239.163876][ T6568] ? gfs2_reconfigure+0xcd0/0xcd0
[ 239.168912][ T6568] gfs2_get_tree+0x4d/0x1e0
[ 239.173425][ T6568] vfs_get_tree+0x88/0x270
[ 239.177957][ T6568] do_new_mount+0x24a/0xa40
[ 239.182473][ T6568] __se_sys_mount+0x2d6/0x3c0
[ 239.187164][ T6568] ? __x64_sys_mount+0xc0/0xc0
[ 239.191936][ T6568] ? lockdep_hardirqs_on+0x94/0x140
[ 239.197138][ T6568] ? __x64_sys_mount+0x1c/0xc0
[ 239.201909][ T6568] do_syscall_64+0x4c/0xa0
[ 239.206339][ T6568] ? clear_bhb_loop+0x30/0x80
[ 239.211022][ T6568] ? clear_bhb_loop+0x30/0x80
[ 239.215706][ T6568] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 239.221606][ T6568] RIP: 0033:0x7fa05610190a
[ 239.226025][ T6568] 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
[ 239.245645][ T6568] RSP: 002b:00007fa055370e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 239.254069][ T6568] RAX: ffffffffffffffda RBX: 00007fa055370ef0 RCX: 00007fa05610190a
[ 239.262050][ T6568] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fa055370eb0
[ 239.270028][ T6568] RBP: 0000200000000400 R08: 00007fa055370ef0 R09: 0000000000000000
[ 239.278007][ T6568] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 239.286090][ T6568] R13: 00007fa055370eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 239.294078][ T6568]
[ 239.297159][ T6566] CPU: 0 PID: 6566 Comm: syz.0.391 Not tainted syzkaller #0
[ 239.298333][ T6568] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 239.304446][ T6566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 239.304458][ T6566] Call Trace:
[ 239.304464][ T6566]
[ 239.304472][ T6566] dump_stack_lvl+0x168/0x230
[ 239.304495][ T6566] ? show_regs_print_info+0x20/0x20
[ 239.304510][ T6566] ? load_image+0x3b0/0x3b0
[ 239.304538][ T6566] sysfs_create_dir_ns+0x252/0x280
[ 239.304557][ T6566] ? __lock_acquire+0x7c60/0x7c60
[ 239.304578][ T6566] ? sysfs_warn_dup+0xa0/0xa0
[ 239.304600][ T6566] ? do_raw_spin_unlock+0x11d/0x230
[ 239.304621][ T6566] kobject_add_internal+0x662/0xd00
[ 239.304645][ T6566] kobject_init_and_add+0x122/0x190
[ 239.304661][ T6566] ? lockdep_softirqs_off+0x420/0x420
[ 239.304682][ T6566] ? kobject_add+0x210/0x210
[ 239.304703][ T6566] ? __init_swait_queue_head+0xa5/0x150
[ 239.304728][ T6566] gfs2_sys_fs_add+0x234/0x480
[ 239.304746][ T6566] ? gfs2_recover_set+0x240/0x240
[ 239.304761][ T6566] ? snprintf+0xd7/0x120
[ 239.304779][ T6566] ? __free_pages+0x95/0x1a0
[ 239.304800][ T6566] ? vscnprintf+0x80/0x80
[ 239.304828][ T6566] gfs2_fill_super+0x128d/0x1f50
[ 239.304858][ T6566] ? gfs2_reconfigure+0xcd0/0xcd0
[ 239.304879][ T6566] ? preempt_count_add+0x8d/0x190
[ 239.304907][ T6566] ? sb_set_blocksize+0xa5/0xe0
[ 239.304929][ T6566] get_tree_bdev+0x3f1/0x610
[ 239.304950][ T6566] ? gfs2_reconfigure+0xcd0/0xcd0
[ 239.304969][ T6566] gfs2_get_tree+0x4d/0x1e0
[ 239.304990][ T6566] vfs_get_tree+0x88/0x270
[ 239.305015][ T6566] do_new_mount+0x24a/0xa40
[ 239.305041][ T6566] __se_sys_mount+0x2d6/0x3c0
[ 239.305064][ T6566] ? __x64_sys_mount+0xc0/0xc0
[ 239.305094][ T6566] ? lockdep_hardirqs_on+0x94/0x140
[ 239.305113][ T6566] ? __x64_sys_mount+0x1c/0xc0
[ 239.305134][ T6566] do_syscall_64+0x4c/0xa0
[ 239.305151][ T6566] ? clear_bhb_loop+0x30/0x80
[ 239.305169][ T6566] ? clear_bhb_loop+0x30/0x80
[ 239.305188][ T6566] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 239.305206][ T6566] RIP: 0033:0x7effad95090a
[ 239.305223][ T6566] 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
[ 239.305239][ T6566] RSP: 002b:00007effacbbfe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 239.305260][ T6566] RAX: ffffffffffffffda RBX: 00007effacbbfef0 RCX: 00007effad95090a
[ 239.305274][ T6566] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007effacbbfeb0
[ 239.305287][ T6566] RBP: 0000200000000400 R08: 00007effacbbfef0 R09: 0000000000000000
[ 239.305300][ T6566] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 239.305313][ T6566] R13: 00007effacbbfeb0 R14: 00000000000125bb R15: 00002000000004c0
[ 239.305338][ T6566]
[ 239.305899][ T6566] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 239.305914][ T6566] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 239.596731][ T6568] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 239.634325][ T6574] loop3: detected capacity change from 0 to 32768
[ 239.936248][ T6578] loop2: detected capacity change from 0 to 32768
[ 240.320394][ T6574] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.328938][ T6574] CPU: 0 PID: 6574 Comm: syz.3.395 Not tainted syzkaller #0
[ 240.336242][ T6574] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 240.346300][ T6574] Call Trace:
[ 240.349580][ T6574]
[ 240.352507][ T6574] dump_stack_lvl+0x168/0x230
[ 240.357188][ T6574] ? show_regs_print_info+0x20/0x20
[ 240.362388][ T6574] ? load_image+0x3b0/0x3b0
[ 240.366904][ T6574] sysfs_create_dir_ns+0x252/0x280
[ 240.371607][ T6581] loop0: detected capacity change from 0 to 32768
[ 240.372025][ T6574] ? __lock_acquire+0x7c60/0x7c60
[ 240.383426][ T6574] ? sysfs_warn_dup+0xa0/0xa0
[ 240.388123][ T6574] ? do_raw_spin_unlock+0x11d/0x230
[ 240.393344][ T6574] kobject_add_internal+0x662/0xd00
[ 240.398557][ T6574] kobject_init_and_add+0x122/0x190
[ 240.403759][ T6574] ? lockdep_softirqs_off+0x420/0x420
[ 240.409313][ T6574] ? kobject_add+0x210/0x210
[ 240.413927][ T6574] ? __init_swait_queue_head+0xa5/0x150
[ 240.419494][ T6574] gfs2_sys_fs_add+0x234/0x480
[ 240.424268][ T6574] ? gfs2_recover_set+0x240/0x240
[ 240.429298][ T6574] ? snprintf+0xd7/0x120
[ 240.433554][ T6574] ? __free_pages+0x95/0x1a0
[ 240.438156][ T6574] ? vscnprintf+0x80/0x80
[ 240.442645][ T6574] gfs2_fill_super+0x128d/0x1f50
[ 240.447608][ T6574] ? gfs2_reconfigure+0xcd0/0xcd0
[ 240.452643][ T6574] ? preempt_count_add+0x8d/0x190
[ 240.457694][ T6574] ? sb_set_blocksize+0xa5/0xe0
[ 240.462557][ T6574] get_tree_bdev+0x3f1/0x610
[ 240.467166][ T6574] ? gfs2_reconfigure+0xcd0/0xcd0
[ 240.472212][ T6574] gfs2_get_tree+0x4d/0x1e0
[ 240.476723][ T6574] vfs_get_tree+0x88/0x270
[ 240.481149][ T6574] do_new_mount+0x24a/0xa40
[ 240.485664][ T6574] __se_sys_mount+0x2d6/0x3c0
[ 240.490349][ T6574] ? __x64_sys_mount+0xc0/0xc0
[ 240.495120][ T6574] ? lockdep_hardirqs_on+0x94/0x140
[ 240.500328][ T6574] ? __x64_sys_mount+0x1c/0xc0
[ 240.505096][ T6574] do_syscall_64+0x4c/0xa0
[ 240.509515][ T6574] ? clear_bhb_loop+0x30/0x80
[ 240.514199][ T6574] ? clear_bhb_loop+0x30/0x80
[ 240.518881][ T6574] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 240.524775][ T6574] RIP: 0033:0x7f33eeb1a90a
[ 240.529197][ T6574] 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
[ 240.548816][ T6574] RSP: 002b:00007f33edd89e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.557242][ T6574] RAX: ffffffffffffffda RBX: 00007f33edd89ef0 RCX: 00007f33eeb1a90a
[ 240.565303][ T6574] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33edd89eb0
[ 240.573275][ T6574] RBP: 0000200000000400 R08: 00007f33edd89ef0 R09: 0000000000000000
[ 240.581251][ T6574] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 240.589232][ T6574] R13: 00007f33edd89eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 240.597226][ T6574]
[ 240.601785][ T6574] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.615219][ T6574] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 240.658449][ T6578] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.666043][ T6578] CPU: 0 PID: 6578 Comm: syz.2.396 Not tainted syzkaller #0
[ 240.673422][ T6578] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 240.683487][ T6578] Call Trace:
[ 240.686766][ T6578]
[ 240.689701][ T6578] dump_stack_lvl+0x168/0x230
[ 240.694495][ T6578] ? show_regs_print_info+0x20/0x20
[ 240.699704][ T6578] ? load_image+0x3b0/0x3b0
[ 240.704240][ T6578] sysfs_create_dir_ns+0x252/0x280
[ 240.709361][ T6578] ? __lock_acquire+0x7c60/0x7c60
[ 240.714387][ T6578] ? sysfs_warn_dup+0xa0/0xa0
[ 240.719075][ T6578] ? do_raw_spin_unlock+0x11d/0x230
[ 240.724277][ T6578] kobject_add_internal+0x662/0xd00
[ 240.729484][ T6578] kobject_init_and_add+0x122/0x190
[ 240.734683][ T6578] ? lockdep_softirqs_off+0x420/0x420
[ 240.740058][ T6578] ? kobject_add+0x210/0x210
[ 240.744651][ T6578] ? __init_swait_queue_head+0xa5/0x150
[ 240.750202][ T6578] gfs2_sys_fs_add+0x234/0x480
[ 240.754972][ T6578] ? gfs2_recover_set+0x240/0x240
[ 240.759995][ T6578] ? snprintf+0xd7/0x120
[ 240.764239][ T6578] ? __free_pages+0x95/0x1a0
[ 240.768830][ T6578] ? vscnprintf+0x80/0x80
[ 240.773184][ T6578] gfs2_fill_super+0x128d/0x1f50
[ 240.778148][ T6578] ? gfs2_reconfigure+0xcd0/0xcd0
[ 240.783528][ T6578] ? preempt_count_add+0x8d/0x190
[ 240.788568][ T6578] ? sb_set_blocksize+0xa5/0xe0
[ 240.793438][ T6578] get_tree_bdev+0x3f1/0x610
[ 240.798035][ T6578] ? gfs2_reconfigure+0xcd0/0xcd0
[ 240.803075][ T6578] gfs2_get_tree+0x4d/0x1e0
[ 240.807585][ T6578] vfs_get_tree+0x88/0x270
[ 240.812011][ T6578] do_new_mount+0x24a/0xa40
[ 240.816524][ T6578] __se_sys_mount+0x2d6/0x3c0
[ 240.821311][ T6578] ? __x64_sys_mount+0xc0/0xc0
[ 240.826083][ T6578] ? lockdep_hardirqs_on+0x94/0x140
[ 240.831273][ T6578] ? __x64_sys_mount+0x1c/0xc0
[ 240.836026][ T6578] do_syscall_64+0x4c/0xa0
[ 240.840430][ T6578] ? clear_bhb_loop+0x30/0x80
[ 240.845096][ T6578] ? clear_bhb_loop+0x30/0x80
[ 240.849788][ T6578] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 240.855667][ T6578] RIP: 0033:0x7fdb5331090a
[ 240.860068][ T6578] 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
[ 240.879657][ T6578] RSP: 002b:00007fdb5257fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.888230][ T6578] RAX: ffffffffffffffda RBX: 00007fdb5257fef0 RCX: 00007fdb5331090a
[ 240.896187][ T6578] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdb5257feb0
[ 240.904231][ T6578] RBP: 0000200000000400 R08: 00007fdb5257fef0 R09: 0000000000000000
[ 240.912196][ T6578] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 240.920152][ T6578] R13: 00007fdb5257feb0 R14: 00000000000125bb R15: 00002000000004c0
[ 240.928120][ T6578]
[ 240.931904][ T6578] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.945753][ T6578] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 240.947374][ T6581] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.959884][ T6581] CPU: 1 PID: 6581 Comm: syz.0.399 Not tainted syzkaller #0
[ 240.967170][ T6581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 240.977227][ T6581] Call Trace:
[ 240.980510][ T6581]
[ 240.983448][ T6581] dump_stack_lvl+0x168/0x230
[ 240.988137][ T6581] ? show_regs_print_info+0x20/0x20
[ 240.993343][ T6581] ? load_image+0x3b0/0x3b0
[ 240.997862][ T6581] sysfs_create_dir_ns+0x252/0x280
[ 241.002982][ T6581] ? __lock_acquire+0x7c60/0x7c60
[ 241.008016][ T6581] ? sysfs_warn_dup+0xa0/0xa0
[ 241.012706][ T6581] ? do_raw_spin_unlock+0x11d/0x230
[ 241.017914][ T6581] kobject_add_internal+0x662/0xd00
[ 241.023137][ T6581] kobject_init_and_add+0x122/0x190
[ 241.028345][ T6581] ? lockdep_softirqs_off+0x420/0x420
[ 241.033726][ T6581] ? kobject_add+0x210/0x210
[ 241.038328][ T6581] ? __init_swait_queue_head+0xa5/0x150
[ 241.043882][ T6581] gfs2_sys_fs_add+0x234/0x480
[ 241.048654][ T6581] ? gfs2_recover_set+0x240/0x240
[ 241.053691][ T6581] ? snprintf+0xd7/0x120
[ 241.057941][ T6581] ? __free_pages+0x95/0x1a0
[ 241.062540][ T6581] ? vscnprintf+0x80/0x80
[ 241.067234][ T6581] gfs2_fill_super+0x128d/0x1f50
[ 241.072201][ T6581] ? gfs2_reconfigure+0xcd0/0xcd0
[ 241.077233][ T6581] ? preempt_count_add+0x8d/0x190
[ 241.082273][ T6581] ? sb_set_blocksize+0xa5/0xe0
[ 241.087133][ T6581] get_tree_bdev+0x3f1/0x610
[ 241.091727][ T6581] ? gfs2_reconfigure+0xcd0/0xcd0
[ 241.096754][ T6581] gfs2_get_tree+0x4d/0x1e0
[ 241.101262][ T6581] vfs_get_tree+0x88/0x270
[ 241.105680][ T6581] do_new_mount+0x24a/0xa40
[ 241.110191][ T6581] __se_sys_mount+0x2d6/0x3c0
[ 241.114877][ T6581] ? __x64_sys_mount+0xc0/0xc0
[ 241.119649][ T6581] ? lockdep_hardirqs_on+0x94/0x140
[ 241.124850][ T6581] ? __x64_sys_mount+0x1c/0xc0
[ 241.129625][ T6581] do_syscall_64+0x4c/0xa0
[ 241.134044][ T6581] ? clear_bhb_loop+0x30/0x80
[ 241.138748][ T6581] ? clear_bhb_loop+0x30/0x80
[ 241.143445][ T6581] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 241.149439][ T6581] RIP: 0033:0x7effad95090a
[ 241.153857][ T6581] 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
[ 241.173481][ T6581] RSP: 002b:00007effacbbfe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 241.181911][ T6581] RAX: ffffffffffffffda RBX: 00007effacbbfef0 RCX: 00007effad95090a
[ 241.189900][ T6581] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007effacbbfeb0
[ 241.197885][ T6581] RBP: 0000200000000400 R08: 00007effacbbfef0 R09: 0000000000000000
2025/12/14 02:35:08 executed programs: 395
[ 241.205873][ T6581] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 241.213851][ T6581] R13: 00007effacbbfeb0 R14: 00000000000125bb R15: 00002000000004c0
[ 241.221842][ T6581]
[ 241.224990][ T6581] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 241.238310][ T6581] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 241.632473][ T6589] loop5: detected capacity change from 0 to 32768
[ 241.724115][ T6586] loop2: detected capacity change from 0 to 32768
[ 241.795181][ T6589] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 241.798562][ T6586] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 241.802628][ T6589] CPU: 0 PID: 6589 Comm: syz.5.402 Not tainted syzkaller #0
[ 241.817226][ T6589] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 241.827268][ T6589] Call Trace:
[ 241.830536][ T6589]
[ 241.833463][ T6589] dump_stack_lvl+0x168/0x230
[ 241.838133][ T6589] ? show_regs_print_info+0x20/0x20
[ 241.843321][ T6589] ? load_image+0x3b0/0x3b0
[ 241.847837][ T6589] sysfs_create_dir_ns+0x252/0x280
[ 241.853027][ T6589] ? __lock_acquire+0x7c60/0x7c60
[ 241.858041][ T6589] ? sysfs_warn_dup+0xa0/0xa0
[ 241.862714][ T6589] ? do_raw_spin_unlock+0x11d/0x230
[ 241.867903][ T6589] kobject_add_internal+0x662/0xd00
[ 241.873094][ T6589] kobject_init_and_add+0x122/0x190
[ 241.878284][ T6589] ? lockdep_softirqs_off+0x420/0x420
[ 241.883647][ T6589] ? kobject_add+0x210/0x210
[ 241.888227][ T6589] ? __init_swait_queue_head+0xa5/0x150
[ 241.893765][ T6589] gfs2_sys_fs_add+0x234/0x480
[ 241.898518][ T6589] ? gfs2_recover_set+0x240/0x240
[ 241.903532][ T6589] ? snprintf+0xd7/0x120
[ 241.907763][ T6589] ? __free_pages+0x95/0x1a0
[ 241.912366][ T6589] ? vscnprintf+0x80/0x80
[ 241.916726][ T6589] gfs2_fill_super+0x128d/0x1f50
[ 241.921667][ T6589] ? gfs2_reconfigure+0xcd0/0xcd0
[ 241.926681][ T6589] ? preempt_count_add+0x8d/0x190
[ 241.931702][ T6589] ? sb_set_blocksize+0xa5/0xe0
[ 241.936546][ T6589] get_tree_bdev+0x3f1/0x610
[ 241.941136][ T6589] ? gfs2_reconfigure+0xcd0/0xcd0
[ 241.946151][ T6589] gfs2_get_tree+0x4d/0x1e0
[ 241.950646][ T6589] vfs_get_tree+0x88/0x270
[ 241.955060][ T6589] do_new_mount+0x24a/0xa40
[ 241.959559][ T6589] __se_sys_mount+0x2d6/0x3c0
[ 241.964228][ T6589] ? __x64_sys_mount+0xc0/0xc0
[ 241.968987][ T6589] ? lockdep_hardirqs_on+0x94/0x140
[ 241.974173][ T6589] ? __x64_sys_mount+0x1c/0xc0
[ 241.978927][ T6589] do_syscall_64+0x4c/0xa0
[ 241.983360][ T6589] ? clear_bhb_loop+0x30/0x80
[ 241.988023][ T6589] ? clear_bhb_loop+0x30/0x80
[ 241.992692][ T6589] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 241.998574][ T6589] RIP: 0033:0x7fa05610190a
[ 242.002978][ T6589] 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
[ 242.022579][ T6589] RSP: 002b:00007fa055370e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 242.031071][ T6589] RAX: ffffffffffffffda RBX: 00007fa055370ef0 RCX: 00007fa05610190a
[ 242.039030][ T6589] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fa055370eb0
[ 242.047078][ T6589] RBP: 0000200000000400 R08: 00007fa055370ef0 R09: 0000000000000000
[ 242.055039][ T6589] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 242.063006][ T6589] R13: 00007fa055370eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 242.071012][ T6589]
[ 242.074030][ T6586] CPU: 1 PID: 6586 Comm: syz.2.401 Not tainted syzkaller #0
[ 242.075741][ T6589] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 242.081318][ T6586] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 242.094440][ T6589] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 242.104430][ T6586] Call Trace:
[ 242.104439][ T6586]
[ 242.104447][ T6586] dump_stack_lvl+0x168/0x230
[ 242.121777][ T6586] ? show_regs_print_info+0x20/0x20
[ 242.126982][ T6586] ? load_image+0x3b0/0x3b0
[ 242.128863][ T6572] loop4: detected capacity change from 0 to 32768
[ 242.131503][ T6586] sysfs_create_dir_ns+0x252/0x280
[ 242.142982][ T6586] ? __lock_acquire+0x7c60/0x7c60
[ 242.148021][ T6586] ? sysfs_warn_dup+0xa0/0xa0
[ 242.152716][ T6586] ? do_raw_spin_unlock+0x11d/0x230
[ 242.157923][ T6586] kobject_add_internal+0x662/0xd00
[ 242.163136][ T6586] kobject_init_and_add+0x122/0x190
[ 242.168338][ T6586] ? lockdep_softirqs_off+0x420/0x420
[ 242.173717][ T6586] ? kobject_add+0x210/0x210
[ 242.178315][ T6586] ? __init_swait_queue_head+0xa5/0x150
[ 242.183873][ T6586] gfs2_sys_fs_add+0x234/0x480
[ 242.188642][ T6586] ? gfs2_recover_set+0x240/0x240
[ 242.193669][ T6586] ? snprintf+0xd7/0x120
[ 242.197916][ T6586] ? __free_pages+0x95/0x1a0
[ 242.202516][ T6586] ? vscnprintf+0x80/0x80
[ 242.206860][ T6586] gfs2_fill_super+0x128d/0x1f50
[ 242.211812][ T6586] ? gfs2_reconfigure+0xcd0/0xcd0
[ 242.216844][ T6586] ? preempt_count_add+0x8d/0x190
[ 242.221881][ T6586] ? sb_set_blocksize+0xa5/0xe0
[ 242.226739][ T6586] get_tree_bdev+0x3f1/0x610
[ 242.231336][ T6586] ? gfs2_reconfigure+0xcd0/0xcd0
[ 242.236365][ T6586] gfs2_get_tree+0x4d/0x1e0
[ 242.240876][ T6586] vfs_get_tree+0x88/0x270
[ 242.245298][ T6586] do_new_mount+0x24a/0xa40
[ 242.249809][ T6586] __se_sys_mount+0x2d6/0x3c0
[ 242.254491][ T6586] ? __x64_sys_mount+0xc0/0xc0
[ 242.259255][ T6586] ? lockdep_hardirqs_on+0x94/0x140
[ 242.264453][ T6586] ? __x64_sys_mount+0x1c/0xc0
[ 242.269220][ T6586] do_syscall_64+0x4c/0xa0
[ 242.273642][ T6586] ? clear_bhb_loop+0x30/0x80
[ 242.278322][ T6586] ? clear_bhb_loop+0x30/0x80
[ 242.283002][ T6586] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 242.288900][ T6586] RIP: 0033:0x7fdb5331090a
[ 242.293321][ T6586] 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
[ 242.312927][ T6586] RSP: 002b:00007fdb5257fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 242.321349][ T6586] RAX: ffffffffffffffda RBX: 00007fdb5257fef0 RCX: 00007fdb5331090a
[ 242.329322][ T6586] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdb5257feb0
[ 242.337299][ T6586] RBP: 0000200000000400 R08: 00007fdb5257fef0 R09: 0000000000000000
[ 242.345274][ T6586] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 242.353250][ T6586] R13: 00007fdb5257feb0 R14: 00000000000125bb R15: 00002000000004c0
[ 242.361237][ T6586]
[ 242.365543][ T6586] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 242.380050][ T6586] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 242.447728][ T6592] loop0: detected capacity change from 0 to 32768
[ 242.457283][ T6592] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 242.464744][ T6592] CPU: 0 PID: 6592 Comm: syz.0.404 Not tainted syzkaller #0
[ 242.472037][ T6592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 242.482097][ T6592] Call Trace:
[ 242.485383][ T6592]
[ 242.488311][ T6592] dump_stack_lvl+0x168/0x230
[ 242.493006][ T6592] ? show_regs_print_info+0x20/0x20
[ 242.498204][ T6592] ? load_image+0x3b0/0x3b0
[ 242.502720][ T6592] sysfs_create_dir_ns+0x252/0x280
[ 242.507833][ T6592] ? __lock_acquire+0x7c60/0x7c60
[ 242.512861][ T6592] ? sysfs_warn_dup+0xa0/0xa0
[ 242.517544][ T6592] ? do_raw_spin_unlock+0x11d/0x230
[ 242.522745][ T6592] kobject_add_internal+0x662/0xd00
[ 242.527950][ T6592] kobject_init_and_add+0x122/0x190
[ 242.533248][ T6592] ? lockdep_softirqs_off+0x420/0x420
[ 242.538635][ T6592] ? kobject_add+0x210/0x210
[ 242.543243][ T6592] ? __init_swait_queue_head+0xa5/0x150
[ 242.548805][ T6592] gfs2_sys_fs_add+0x234/0x480
[ 242.553583][ T6592] ? gfs2_recover_set+0x240/0x240
[ 242.558625][ T6592] ? snprintf+0xd7/0x120
[ 242.562968][ T6592] ? __free_pages+0x95/0x1a0
[ 242.567593][ T6592] ? vscnprintf+0x80/0x80
[ 242.571944][ T6592] gfs2_fill_super+0x128d/0x1f50
[ 242.576913][ T6592] ? gfs2_reconfigure+0xcd0/0xcd0
[ 242.582039][ T6592] ? preempt_count_add+0x8d/0x190
[ 242.587082][ T6592] ? sb_set_blocksize+0xa5/0xe0
[ 242.591940][ T6592] get_tree_bdev+0x3f1/0x610
[ 242.596544][ T6592] ? gfs2_reconfigure+0xcd0/0xcd0
[ 242.601581][ T6592] gfs2_get_tree+0x4d/0x1e0
[ 242.606100][ T6592] vfs_get_tree+0x88/0x270
[ 242.610527][ T6592] do_new_mount+0x24a/0xa40
[ 242.615183][ T6592] __se_sys_mount+0x2d6/0x3c0
[ 242.619882][ T6592] ? __x64_sys_mount+0xc0/0xc0
[ 242.624659][ T6592] ? lockdep_hardirqs_on+0x94/0x140
[ 242.629873][ T6592] ? __x64_sys_mount+0x1c/0xc0
[ 242.634741][ T6592] do_syscall_64+0x4c/0xa0
[ 242.639164][ T6592] ? clear_bhb_loop+0x30/0x80
[ 242.643852][ T6592] ? clear_bhb_loop+0x30/0x80
[ 242.648535][ T6592] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 242.654433][ T6592] RIP: 0033:0x7effad95090a
[ 242.658852][ T6592] 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
[ 242.678461][ T6592] RSP: 002b:00007effacbbfe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 242.686893][ T6592] RAX: ffffffffffffffda RBX: 00007effacbbfef0 RCX: 00007effad95090a
[ 242.694880][ T6592] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007effacbbfeb0
[ 242.702861][ T6592] RBP: 0000200000000400 R08: 00007effacbbfef0 R09: 0000000000000000
[ 242.710843][ T6592] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 242.718823][ T6592] R13: 00007effacbbfeb0 R14: 00000000000125bb R15: 00002000000004c0
[ 242.726903][ T6592]
[ 242.731089][ T6592] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 242.745520][ T6592] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 243.227028][ T6596] loop5: detected capacity change from 0 to 32768
[ 243.740857][ T6602] loop4: detected capacity change from 0 to 32768
[ 243.748516][ T6605] loop0: detected capacity change from 0 to 32768
[ 243.790451][ T6596] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.797892][ T6596] CPU: 0 PID: 6596 Comm: syz.5.406 Not tainted syzkaller #0
[ 243.804735][ T6590] loop3: detected capacity change from 0 to 32768
[ 243.805262][ T6596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 243.821697][ T6596] Call Trace:
[ 243.824982][ T6596]
[ 243.827917][ T6596] dump_stack_lvl+0x168/0x230
[ 243.832643][ T6596] ? show_regs_print_info+0x20/0x20
[ 243.837851][ T6596] ? load_image+0x3b0/0x3b0
[ 243.842374][ T6596] sysfs_create_dir_ns+0x252/0x280
[ 243.847499][ T6596] ? __lock_acquire+0x7c60/0x7c60
[ 243.852531][ T6596] ? sysfs_warn_dup+0xa0/0xa0
[ 243.857224][ T6596] ? do_raw_spin_unlock+0x11d/0x230
[ 243.862430][ T6596] kobject_add_internal+0x662/0xd00
[ 243.867654][ T6596] kobject_init_and_add+0x122/0x190
[ 243.872857][ T6596] ? lockdep_softirqs_off+0x420/0x420
[ 243.878244][ T6596] ? kobject_add+0x210/0x210
[ 243.882842][ T6596] ? __init_swait_queue_head+0xa5/0x150
[ 243.888396][ T6596] gfs2_sys_fs_add+0x234/0x480
[ 243.893168][ T6596] ? gfs2_recover_set+0x240/0x240
[ 243.898197][ T6596] ? snprintf+0xd7/0x120
[ 243.902446][ T6596] ? __free_pages+0x95/0x1a0
[ 243.907043][ T6596] ? vscnprintf+0x80/0x80
[ 243.911390][ T6596] gfs2_fill_super+0x128d/0x1f50
[ 243.916345][ T6596] ? gfs2_reconfigure+0xcd0/0xcd0
[ 243.921377][ T6596] ? preempt_count_add+0x8d/0x190
[ 243.926412][ T6596] ? sb_set_blocksize+0xa5/0xe0
[ 243.931278][ T6596] get_tree_bdev+0x3f1/0x610
[ 243.935871][ T6596] ? gfs2_reconfigure+0xcd0/0xcd0
[ 243.940901][ T6596] gfs2_get_tree+0x4d/0x1e0
[ 243.945408][ T6596] vfs_get_tree+0x88/0x270
[ 243.949834][ T6596] do_new_mount+0x24a/0xa40
[ 243.954344][ T6596] __se_sys_mount+0x2d6/0x3c0
[ 243.959029][ T6596] ? __x64_sys_mount+0xc0/0xc0
[ 243.963819][ T6596] ? lockdep_hardirqs_on+0x94/0x140
[ 243.969033][ T6596] ? __x64_sys_mount+0x1c/0xc0
[ 243.973813][ T6596] do_syscall_64+0x4c/0xa0
[ 243.978233][ T6596] ? clear_bhb_loop+0x30/0x80
[ 243.982916][ T6596] ? clear_bhb_loop+0x30/0x80
[ 243.987604][ T6596] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 243.993501][ T6596] RIP: 0033:0x7fa05610190a
[ 243.997920][ T6596] 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
[ 244.017531][ T6596] RSP: 002b:00007fa055370e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.025953][ T6596] RAX: ffffffffffffffda RBX: 00007fa055370ef0 RCX: 00007fa05610190a
[ 244.033937][ T6596] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fa055370eb0
[ 244.041920][ T6596] RBP: 0000200000000400 R08: 00007fa055370ef0 R09: 0000000000000000
[ 244.049911][ T6596] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 244.057981][ T6596] R13: 00007fa055370eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 244.065979][ T6596]
[ 244.069915][ T6596] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.083234][ T6596] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.107056][ T6605] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 244.114493][ T6605] CPU: 1 PID: 6605 Comm: syz.0.410 Not tainted syzkaller #0
[ 244.121782][ T6605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 244.131846][ T6605] Call Trace:
[ 244.135128][ T6605]
[ 244.138067][ T6605] dump_stack_lvl+0x168/0x230
[ 244.142763][ T6605] ? show_regs_print_info+0x20/0x20
[ 244.147971][ T6605] ? load_image+0x3b0/0x3b0
[ 244.152533][ T6605] sysfs_create_dir_ns+0x252/0x280
[ 244.157659][ T6605] ? __lock_acquire+0x7c60/0x7c60
[ 244.162702][ T6605] ? sysfs_warn_dup+0xa0/0xa0
[ 244.167388][ T6605] ? do_raw_spin_unlock+0x11d/0x230
[ 244.172612][ T6605] kobject_add_internal+0x662/0xd00
[ 244.177825][ T6605] kobject_init_and_add+0x122/0x190
[ 244.180195][ T6590] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 244.183027][ T6605] ? lockdep_softirqs_off+0x420/0x420
[ 244.195751][ T6605] ? kobject_add+0x210/0x210
[ 244.200365][ T6605] ? __init_swait_queue_head+0xa5/0x150
[ 244.205920][ T6605] gfs2_sys_fs_add+0x234/0x480
[ 244.210692][ T6605] ? gfs2_recover_set+0x240/0x240
[ 244.213654][ T6600] loop2: detected capacity change from 0 to 32768
[ 244.215719][ T6605] ? snprintf+0xd7/0x120
[ 244.215742][ T6605] ? __free_pages+0x95/0x1a0
[ 244.215764][ T6605] ? vscnprintf+0x80/0x80
[ 244.215790][ T6605] gfs2_fill_super+0x128d/0x1f50
[ 244.215826][ T6605] ? gfs2_reconfigure+0xcd0/0xcd0
[ 244.215847][ T6605] ? preempt_count_add+0x8d/0x190
[ 244.215875][ T6605] ? sb_set_blocksize+0xa5/0xe0
[ 244.215897][ T6605] get_tree_bdev+0x3f1/0x610
[ 244.215920][ T6605] ? gfs2_reconfigure+0xcd0/0xcd0
[ 244.215941][ T6605] gfs2_get_tree+0x4d/0x1e0
[ 244.215962][ T6605] vfs_get_tree+0x88/0x270
[ 244.215983][ T6605] do_new_mount+0x24a/0xa40
[ 244.216008][ T6605] __se_sys_mount+0x2d6/0x3c0
[ 244.216032][ T6605] ? __x64_sys_mount+0xc0/0xc0
[ 244.216054][ T6605] ? lockdep_hardirqs_on+0x94/0x140
[ 244.216074][ T6605] ? __x64_sys_mount+0x1c/0xc0
[ 244.216094][ T6605] do_syscall_64+0x4c/0xa0
[ 244.216111][ T6605] ? clear_bhb_loop+0x30/0x80
[ 244.216129][ T6605] ? clear_bhb_loop+0x30/0x80
[ 244.216148][ T6605] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 244.317443][ T6605] RIP: 0033:0x7effad95090a
[ 244.321858][ T6605] 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
[ 244.341466][ T6605] RSP: 002b:00007effacbbfe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.349879][ T6605] RAX: ffffffffffffffda RBX: 00007effacbbfef0 RCX: 00007effad95090a
[ 244.357853][ T6605] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007effacbbfeb0
[ 244.365821][ T6605] RBP: 0000200000000400 R08: 00007effacbbfef0 R09: 0000000000000000
[ 244.374139][ T6605] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 244.382110][ T6605] R13: 00007effacbbfeb0 R14: 00000000000125bb R15: 00002000000004c0
[ 244.390116][ T6605]
[ 244.393133][ T6590] CPU: 0 PID: 6590 Comm: syz.3.403 Not tainted syzkaller #0
[ 244.393229][ T6605] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.400415][ T6590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 244.400426][ T6590] Call Trace:
[ 244.400433][ T6590]
[ 244.400440][ T6590] dump_stack_lvl+0x168/0x230
[ 244.413546][ T6605] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.423559][ T6590] ? show_regs_print_info+0x20/0x20
[ 244.423582][ T6590] ? load_image+0x3b0/0x3b0
[ 244.450596][ T6590] sysfs_create_dir_ns+0x252/0x280
[ 244.455724][ T6590] ? __lock_acquire+0x7c60/0x7c60
[ 244.460735][ T6590] ? sysfs_warn_dup+0xa0/0xa0
[ 244.465415][ T6590] ? do_raw_spin_unlock+0x11d/0x230
[ 244.470602][ T6590] kobject_add_internal+0x662/0xd00
[ 244.475789][ T6590] kobject_init_and_add+0x122/0x190
[ 244.481062][ T6590] ? lockdep_softirqs_off+0x420/0x420
[ 244.486423][ T6590] ? kobject_add+0x210/0x210
[ 244.491001][ T6590] ? __init_swait_queue_head+0xa5/0x150
[ 244.496533][ T6590] gfs2_sys_fs_add+0x234/0x480
[ 244.501281][ T6590] ? gfs2_recover_set+0x240/0x240
[ 244.506286][ T6590] ? snprintf+0xd7/0x120
[ 244.510511][ T6590] ? __free_pages+0x95/0x1a0
[ 244.515086][ T6590] ? vscnprintf+0x80/0x80
[ 244.519405][ T6590] gfs2_fill_super+0x128d/0x1f50
[ 244.524440][ T6590] ? gfs2_reconfigure+0xcd0/0xcd0
[ 244.529465][ T6590] ? preempt_count_add+0x8d/0x190
[ 244.534488][ T6590] ? sb_set_blocksize+0xa5/0xe0
[ 244.539327][ T6590] get_tree_bdev+0x3f1/0x610
[ 244.543918][ T6590] ? gfs2_reconfigure+0xcd0/0xcd0
[ 244.548949][ T6590] gfs2_get_tree+0x4d/0x1e0
[ 244.553440][ T6590] vfs_get_tree+0x88/0x270
[ 244.557846][ T6590] do_new_mount+0x24a/0xa40
[ 244.562336][ T6590] __se_sys_mount+0x2d6/0x3c0
[ 244.567001][ T6590] ? __x64_sys_mount+0xc0/0xc0
[ 244.571746][ T6590] ? lockdep_hardirqs_on+0x94/0x140
[ 244.576924][ T6590] ? __x64_sys_mount+0x1c/0xc0
[ 244.581670][ T6590] do_syscall_64+0x4c/0xa0
[ 244.586063][ T6590] ? clear_bhb_loop+0x30/0x80
[ 244.590719][ T6590] ? clear_bhb_loop+0x30/0x80
[ 244.595373][ T6590] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 244.601254][ T6590] RIP: 0033:0x7f33eeb1a90a
[ 244.605750][ T6590] 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
[ 244.625347][ T6590] RSP: 002b:00007f33edd68e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.633767][ T6590] RAX: ffffffffffffffda RBX: 00007f33edd68ef0 RCX: 00007f33eeb1a90a
[ 244.641725][ T6590] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33edd68eb0
[ 244.649686][ T6590] RBP: 0000200000000400 R08: 00007f33edd68ef0 R09: 0000000000000000
[ 244.657644][ T6590] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 244.665598][ T6590] R13: 00007f33edd68eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 244.673558][ T6590]
[ 244.680569][ T6602] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 244.687749][ T6590] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.688004][ T6602] CPU: 1 PID: 6602 Comm: syz.4.409 Not tainted syzkaller #0
[ 244.701502][ T6590] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.708285][ T6602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 244.708297][ T6602] Call Trace:
[ 244.708304][ T6602]
[ 244.708312][ T6602] dump_stack_lvl+0x168/0x230
[ 244.735704][ T6602] ? show_regs_print_info+0x20/0x20
[ 244.740890][ T6602] ? load_image+0x3b0/0x3b0
[ 244.745494][ T6602] sysfs_create_dir_ns+0x252/0x280
[ 244.750605][ T6602] ? __lock_acquire+0x7c60/0x7c60
[ 244.755612][ T6602] ? sysfs_warn_dup+0xa0/0xa0
[ 244.760276][ T6602] ? do_raw_spin_unlock+0x11d/0x230
[ 244.765456][ T6602] kobject_add_internal+0x662/0xd00
[ 244.770637][ T6602] kobject_init_and_add+0x122/0x190
[ 244.775815][ T6602] ? lockdep_softirqs_off+0x420/0x420
[ 244.781165][ T6602] ? kobject_add+0x210/0x210
[ 244.785737][ T6602] ? __init_swait_queue_head+0xa5/0x150
[ 244.791272][ T6602] gfs2_sys_fs_add+0x234/0x480
[ 244.796032][ T6602] ? gfs2_recover_set+0x240/0x240
[ 244.801060][ T6602] ? snprintf+0xd7/0x120
[ 244.805308][ T6602] ? __free_pages+0x95/0x1a0
[ 244.809909][ T6602] ? vscnprintf+0x80/0x80
[ 244.814235][ T6602] gfs2_fill_super+0x128d/0x1f50
[ 244.819161][ T6602] ? gfs2_reconfigure+0xcd0/0xcd0
[ 244.824166][ T6602] ? preempt_count_add+0x8d/0x190
[ 244.829185][ T6602] ? sb_set_blocksize+0xa5/0xe0
[ 244.834033][ T6602] get_tree_bdev+0x3f1/0x610
[ 244.838608][ T6602] ? gfs2_reconfigure+0xcd0/0xcd0
[ 244.843614][ T6602] gfs2_get_tree+0x4d/0x1e0
[ 244.848106][ T6602] vfs_get_tree+0x88/0x270
[ 244.852521][ T6602] do_new_mount+0x24a/0xa40
[ 244.857007][ T6602] __se_sys_mount+0x2d6/0x3c0
[ 244.861665][ T6602] ? __x64_sys_mount+0xc0/0xc0
[ 244.866410][ T6602] ? lockdep_hardirqs_on+0x94/0x140
[ 244.871591][ T6602] ? __x64_sys_mount+0x1c/0xc0
[ 244.876338][ T6602] do_syscall_64+0x4c/0xa0
[ 244.880736][ T6602] ? clear_bhb_loop+0x30/0x80
[ 244.885392][ T6602] ? clear_bhb_loop+0x30/0x80
[ 244.890043][ T6602] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 244.895915][ T6602] RIP: 0033:0x7fcaa769990a
[ 244.900325][ T6602] 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
[ 244.919912][ T6602] RSP: 002b:00007fcaa6908e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.928313][ T6602] RAX: ffffffffffffffda RBX: 00007fcaa6908ef0 RCX: 00007fcaa769990a
[ 244.936272][ T6602] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fcaa6908eb0
[ 244.944331][ T6602] RBP: 0000200000000400 R08: 00007fcaa6908ef0 R09: 0000000000000000
[ 244.952314][ T6602] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 244.960271][ T6602] R13: 00007fcaa6908eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 244.968238][ T6602]
[ 244.972301][ T6602] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.985656][ T6602] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.003422][ T6600] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.011580][ T6600] CPU: 1 PID: 6600 Comm: syz.2.408 Not tainted syzkaller #0
[ 245.018876][ T6600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 245.028926][ T6600] Call Trace:
[ 245.032201][ T6600]
[ 245.035129][ T6600] dump_stack_lvl+0x168/0x230
[ 245.039814][ T6600] ? show_regs_print_info+0x20/0x20
[ 245.045017][ T6600] ? load_image+0x3b0/0x3b0
[ 245.049531][ T6600] sysfs_create_dir_ns+0x252/0x280
[ 245.054643][ T6600] ? __lock_acquire+0x7c60/0x7c60
[ 245.059668][ T6600] ? sysfs_warn_dup+0xa0/0xa0
[ 245.064374][ T6600] ? do_raw_spin_unlock+0x11d/0x230
[ 245.069583][ T6600] kobject_add_internal+0x662/0xd00
[ 245.074804][ T6600] kobject_init_and_add+0x122/0x190
[ 245.080006][ T6600] ? lockdep_softirqs_off+0x420/0x420
[ 245.085385][ T6600] ? kobject_add+0x210/0x210
[ 245.089994][ T6600] ? __init_swait_queue_head+0xa5/0x150
[ 245.095551][ T6600] gfs2_sys_fs_add+0x234/0x480
[ 245.100333][ T6600] ? gfs2_recover_set+0x240/0x240
[ 245.105366][ T6600] ? snprintf+0xd7/0x120
[ 245.109612][ T6600] ? __free_pages+0x95/0x1a0
[ 245.114204][ T6600] ? vscnprintf+0x80/0x80
[ 245.118548][ T6600] gfs2_fill_super+0x128d/0x1f50
[ 245.123503][ T6600] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.128546][ T6600] ? preempt_count_add+0x8d/0x190
[ 245.133589][ T6600] ? sb_set_blocksize+0xa5/0xe0
[ 245.138463][ T6600] get_tree_bdev+0x3f1/0x610
[ 245.143068][ T6600] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.148106][ T6600] gfs2_get_tree+0x4d/0x1e0
[ 245.152622][ T6600] vfs_get_tree+0x88/0x270
[ 245.157050][ T6600] do_new_mount+0x24a/0xa40
[ 245.161568][ T6600] __se_sys_mount+0x2d6/0x3c0
[ 245.166256][ T6600] ? __x64_sys_mount+0xc0/0xc0
[ 245.171033][ T6600] ? lockdep_hardirqs_on+0x94/0x140
[ 245.176236][ T6600] ? __x64_sys_mount+0x1c/0xc0
[ 245.181008][ T6600] do_syscall_64+0x4c/0xa0
[ 245.185431][ T6600] ? clear_bhb_loop+0x30/0x80
[ 245.190118][ T6600] ? clear_bhb_loop+0x30/0x80
[ 245.194803][ T6600] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 245.200704][ T6600] RIP: 0033:0x7fdb5331090a
[ 245.205129][ T6600] 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
[ 245.224829][ T6600] RSP: 002b:00007fdb5257fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.233257][ T6600] RAX: ffffffffffffffda RBX: 00007fdb5257fef0 RCX: 00007fdb5331090a
[ 245.241237][ T6600] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdb5257feb0
[ 245.249217][ T6600] RBP: 0000200000000400 R08: 00007fdb5257fef0 R09: 0000000000000000
[ 245.257198][ T6600] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 245.265174][ T6600] R13: 00007fdb5257feb0 R14: 00000000000125bb R15: 00002000000004c0
[ 245.273165][ T6600]
[ 245.483771][ T6608] loop5: detected capacity change from 0 to 32768
[ 245.492701][ T6600] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.507781][ T6600] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.584443][ T6609] loop0: detected capacity change from 0 to 32768
[ 245.619259][ T6609] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.626783][ T6609] CPU: 1 PID: 6609 Comm: syz.0.411 Not tainted syzkaller #0
[ 245.634074][ T6609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 245.644128][ T6609] Call Trace:
[ 245.647412][ T6609]
[ 245.650362][ T6609] dump_stack_lvl+0x168/0x230
[ 245.655139][ T6609] ? show_regs_print_info+0x20/0x20
[ 245.660361][ T6609] ? load_image+0x3b0/0x3b0
[ 245.664889][ T6609] sysfs_create_dir_ns+0x252/0x280
[ 245.670011][ T6609] ? __lock_acquire+0x7c60/0x7c60
[ 245.675132][ T6609] ? sysfs_warn_dup+0xa0/0xa0
[ 245.679822][ T6609] ? do_raw_spin_unlock+0x11d/0x230
[ 245.685032][ T6609] kobject_add_internal+0x662/0xd00
[ 245.690243][ T6609] kobject_init_and_add+0x122/0x190
[ 245.695452][ T6609] ? lockdep_softirqs_off+0x420/0x420
[ 245.700833][ T6609] ? kobject_add+0x210/0x210
[ 245.705433][ T6609] ? __init_swait_queue_head+0xa5/0x150
[ 245.710988][ T6609] gfs2_sys_fs_add+0x234/0x480
[ 245.715758][ T6609] ? gfs2_recover_set+0x240/0x240
[ 245.720785][ T6609] ? snprintf+0xd7/0x120
[ 245.725033][ T6609] ? __free_pages+0x95/0x1a0
[ 245.729750][ T6609] ? vscnprintf+0x80/0x80
[ 245.734098][ T6609] gfs2_fill_super+0x128d/0x1f50
[ 245.739053][ T6609] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.744086][ T6609] ? preempt_count_add+0x8d/0x190
[ 245.749123][ T6609] ? sb_set_blocksize+0xa5/0xe0
[ 245.753984][ T6609] get_tree_bdev+0x3f1/0x610
[ 245.758585][ T6609] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.763704][ T6609] gfs2_get_tree+0x4d/0x1e0
[ 245.768210][ T6609] vfs_get_tree+0x88/0x270
[ 245.772629][ T6609] do_new_mount+0x24a/0xa40
[ 245.777142][ T6609] __se_sys_mount+0x2d6/0x3c0
[ 245.781827][ T6609] ? __x64_sys_mount+0xc0/0xc0
[ 245.786598][ T6609] ? lockdep_hardirqs_on+0x94/0x140
[ 245.791807][ T6609] ? __x64_sys_mount+0x1c/0xc0
[ 245.796569][ T6609] do_syscall_64+0x4c/0xa0
[ 245.800988][ T6609] ? clear_bhb_loop+0x30/0x80
[ 245.805668][ T6609] ? clear_bhb_loop+0x30/0x80
[ 245.810344][ T6609] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 245.816333][ T6609] RIP: 0033:0x7effad95090a
[ 245.820789][ T6609] 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
[ 245.840489][ T6609] RSP: 002b:00007effacbbfe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.848914][ T6609] RAX: ffffffffffffffda RBX: 00007effacbbfef0 RCX: 00007effad95090a
[ 245.856893][ T6609] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007effacbbfeb0
[ 245.864871][ T6609] RBP: 0000200000000400 R08: 00007effacbbfef0 R09: 0000000000000000
[ 245.872845][ T6609] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 245.880822][ T6609] R13: 00007effacbbfeb0 R14: 00000000000125bb R15: 00002000000004c0
[ 245.888809][ T6609]
[ 245.893365][ T6609] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.906527][ T6609] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.985608][ T6608] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.993007][ T6608] CPU: 0 PID: 6608 Comm: syz.5.412 Not tainted syzkaller #0
[ 246.000300][ T6608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 246.010363][ T6608] Call Trace:
[ 246.013646][ T6608]
[ 246.016589][ T6608] dump_stack_lvl+0x168/0x230
[ 246.021281][ T6608] ? show_regs_print_info+0x20/0x20
[ 246.026491][ T6608] ? load_image+0x3b0/0x3b0
[ 246.031012][ T6608] sysfs_create_dir_ns+0x252/0x280
[ 246.036130][ T6608] ? __lock_acquire+0x7c60/0x7c60
[ 246.041168][ T6608] ? sysfs_warn_dup+0xa0/0xa0
[ 246.045856][ T6608] ? do_raw_spin_unlock+0x11d/0x230
[ 246.051075][ T6608] kobject_add_internal+0x662/0xd00
[ 246.056284][ T6608] kobject_init_and_add+0x122/0x190
[ 246.061488][ T6608] ? lockdep_softirqs_off+0x420/0x420
[ 246.066877][ T6608] ? kobject_add+0x210/0x210
[ 246.071487][ T6608] ? __init_swait_queue_head+0xa5/0x150
[ 246.077043][ T6608] gfs2_sys_fs_add+0x234/0x480
[ 246.081809][ T6608] ? gfs2_recover_set+0x240/0x240
[ 246.086839][ T6608] ? snprintf+0xd7/0x120
[ 246.091085][ T6608] ? __free_pages+0x95/0x1a0
[ 246.095682][ T6608] ? vscnprintf+0x80/0x80
[ 246.100025][ T6608] gfs2_fill_super+0x128d/0x1f50
[ 246.104983][ T6608] ? gfs2_reconfigure+0xcd0/0xcd0
[ 246.110010][ T6608] ? preempt_count_add+0x8d/0x190
[ 246.115043][ T6608] ? sb_set_blocksize+0xa5/0xe0
[ 246.119902][ T6608] get_tree_bdev+0x3f1/0x610
[ 246.124492][ T6608] ? gfs2_reconfigure+0xcd0/0xcd0
[ 246.129516][ T6608] gfs2_get_tree+0x4d/0x1e0
[ 246.134026][ T6608] vfs_get_tree+0x88/0x270
[ 246.138447][ T6608] do_new_mount+0x24a/0xa40
[ 246.142960][ T6608] __se_sys_mount+0x2d6/0x3c0
[ 246.147647][ T6608] ? __x64_sys_mount+0xc0/0xc0
[ 246.152421][ T6608] ? lockdep_hardirqs_on+0x94/0x140
[ 246.157623][ T6608] ? __x64_sys_mount+0x1c/0xc0
[ 246.162392][ T6608] do_syscall_64+0x4c/0xa0
[ 246.166819][ T6608] ? clear_bhb_loop+0x30/0x80
[ 246.171507][ T6608] ? clear_bhb_loop+0x30/0x80
[ 246.176188][ T6608] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 246.182083][ T6608] RIP: 0033:0x7fa05610190a
[ 246.186497][ T6608] 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
[ 246.206103][ T6608] RSP: 002b:00007fa055370e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 246.214545][ T6608] RAX: ffffffffffffffda RBX: 00007fa055370ef0 RCX: 00007fa05610190a
[ 246.222520][ T6608] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fa055370eb0
2025/12/14 02:35:13 executed programs: 409
[ 246.230501][ T6608] RBP: 0000200000000400 R08: 00007fa055370ef0 R09: 0000000000000000
[ 246.238472][ T6608] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 246.246445][ T6608] R13: 00007fa055370eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 246.254449][ T6608]
[ 246.257536][ T6608] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 246.270667][ T6608] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 246.655583][ T6615] loop4: detected capacity change from 0 to 32768
[ 246.665660][ T6615] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 246.673050][ T6615] CPU: 0 PID: 6615 Comm: syz.4.416 Not tainted syzkaller #0
[ 246.680349][ T6615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 246.690406][ T6615] Call Trace:
[ 246.693684][ T6615]
[ 246.696615][ T6615] dump_stack_lvl+0x168/0x230
[ 246.701300][ T6615] ? show_regs_print_info+0x20/0x20
[ 246.706505][ T6615] ? load_image+0x3b0/0x3b0
[ 246.711029][ T6615] sysfs_create_dir_ns+0x252/0x280
[ 246.716239][ T6615] ? __lock_acquire+0x7c60/0x7c60
[ 246.721276][ T6615] ? sysfs_warn_dup+0xa0/0xa0
[ 246.725975][ T6615] ? do_raw_spin_unlock+0x11d/0x230
[ 246.731183][ T6615] kobject_add_internal+0x662/0xd00
[ 246.736481][ T6615] kobject_init_and_add+0x122/0x190
[ 246.741685][ T6615] ? lockdep_softirqs_off+0x420/0x420
[ 246.747068][ T6615] ? kobject_add+0x210/0x210
[ 246.751668][ T6615] ? __init_swait_queue_head+0xa5/0x150
[ 246.757221][ T6615] gfs2_sys_fs_add+0x234/0x480
[ 246.761993][ T6615] ? gfs2_recover_set+0x240/0x240
[ 246.767110][ T6615] ? snprintf+0xd7/0x120
[ 246.771371][ T6615] ? __free_pages+0x95/0x1a0
[ 246.775964][ T6615] ? vscnprintf+0x80/0x80
[ 246.780312][ T6615] gfs2_fill_super+0x128d/0x1f50
[ 246.785275][ T6615] ? gfs2_reconfigure+0xcd0/0xcd0
[ 246.790398][ T6615] ? preempt_count_add+0x8d/0x190
[ 246.795437][ T6615] ? sb_set_blocksize+0xa5/0xe0
[ 246.800347][ T6615] get_tree_bdev+0x3f1/0x610
[ 246.804945][ T6615] ? gfs2_reconfigure+0xcd0/0xcd0
[ 246.809976][ T6615] gfs2_get_tree+0x4d/0x1e0
[ 246.814575][ T6615] vfs_get_tree+0x88/0x270
[ 246.818998][ T6615] do_new_mount+0x24a/0xa40
[ 246.823513][ T6615] __se_sys_mount+0x2d6/0x3c0
[ 246.828199][ T6615] ? __x64_sys_mount+0xc0/0xc0
[ 246.832981][ T6615] ? lockdep_hardirqs_on+0x94/0x140
[ 246.838185][ T6615] ? __x64_sys_mount+0x1c/0xc0
[ 246.842956][ T6615] do_syscall_64+0x4c/0xa0
[ 246.847372][ T6615] ? clear_bhb_loop+0x30/0x80
[ 246.852052][ T6615] ? clear_bhb_loop+0x30/0x80
[ 246.856728][ T6615] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 246.862625][ T6615] RIP: 0033:0x7fcaa769990a
[ 246.867043][ T6615] 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
[ 246.886658][ T6615] RSP: 002b:00007fcaa6908e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 246.895083][ T6615] RAX: ffffffffffffffda RBX: 00007fcaa6908ef0 RCX: 00007fcaa769990a
[ 246.903059][ T6615] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fcaa6908eb0
[ 246.911028][ T6615] RBP: 0000200000000400 R08: 00007fcaa6908ef0 R09: 0000000000000000
[ 246.918998][ T6615] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 246.927151][ T6615] R13: 00007fcaa6908eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 246.935130][ T6615]
[ 246.939033][ T6615] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 246.939052][ T6615] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 247.536274][ T6628] loop5: detected capacity change from 0 to 32768
[ 247.656515][ T6630] loop0: detected capacity change from 0 to 32768
[ 247.784403][ T6630] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.791813][ T6630] CPU: 0 PID: 6630 Comm: syz.0.421 Not tainted syzkaller #0
[ 247.799100][ T6630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 247.809153][ T6630] Call Trace:
[ 247.812433][ T6630]
[ 247.815364][ T6630] dump_stack_lvl+0x168/0x230
[ 247.820052][ T6630] ? show_regs_print_info+0x20/0x20
[ 247.825255][ T6630] ? load_image+0x3b0/0x3b0
[ 247.829773][ T6630] sysfs_create_dir_ns+0x252/0x280
[ 247.834894][ T6630] ? __lock_acquire+0x7c60/0x7c60
[ 247.840010][ T6630] ? sysfs_warn_dup+0xa0/0xa0
[ 247.844873][ T6630] ? do_raw_spin_unlock+0x11d/0x230
[ 247.850097][ T6630] kobject_add_internal+0x662/0xd00
[ 247.855312][ T6630] kobject_init_and_add+0x122/0x190
[ 247.860516][ T6630] ? lockdep_softirqs_off+0x420/0x420
[ 247.865906][ T6630] ? kobject_add+0x210/0x210
[ 247.870504][ T6630] ? __init_swait_queue_head+0xa5/0x150
[ 247.876062][ T6630] gfs2_sys_fs_add+0x234/0x480
[ 247.880839][ T6630] ? gfs2_recover_set+0x240/0x240
[ 247.885884][ T6630] ? snprintf+0xd7/0x120
[ 247.890149][ T6630] ? __free_pages+0x95/0x1a0
[ 247.894748][ T6630] ? vscnprintf+0x80/0x80
[ 247.899102][ T6630] gfs2_fill_super+0x128d/0x1f50
[ 247.904061][ T6630] ? gfs2_reconfigure+0xcd0/0xcd0
[ 247.909113][ T6630] ? preempt_count_add+0x8d/0x190
[ 247.914158][ T6630] ? sb_set_blocksize+0xa5/0xe0
[ 247.919030][ T6630] get_tree_bdev+0x3f1/0x610
[ 247.923726][ T6630] ? gfs2_reconfigure+0xcd0/0xcd0
[ 247.928768][ T6630] gfs2_get_tree+0x4d/0x1e0
[ 247.933281][ T6630] vfs_get_tree+0x88/0x270
[ 247.937712][ T6630] do_new_mount+0x24a/0xa40
[ 247.942234][ T6630] __se_sys_mount+0x2d6/0x3c0
[ 247.946923][ T6630] ? __x64_sys_mount+0xc0/0xc0
[ 247.951699][ T6630] ? lockdep_hardirqs_on+0x94/0x140
[ 247.956908][ T6630] ? __x64_sys_mount+0x1c/0xc0
[ 247.961682][ T6630] do_syscall_64+0x4c/0xa0
[ 247.964087][ T6628] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.966191][ T6630] ? clear_bhb_loop+0x30/0x80
[ 247.966214][ T6630] ? clear_bhb_loop+0x30/0x80
[ 247.966231][ T6630] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 247.966249][ T6630] RIP: 0033:0x7effad95090a
[ 247.993182][ T6630] 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
[ 248.012784][ T6630] RSP: 002b:00007effacbbfe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.021198][ T6630] RAX: ffffffffffffffda RBX: 00007effacbbfef0 RCX: 00007effad95090a
[ 248.029169][ T6630] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007effacbbfeb0
[ 248.037134][ T6630] RBP: 0000200000000400 R08: 00007effacbbfef0 R09: 0000000000000000
[ 248.045098][ T6630] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.053066][ T6630] R13: 00007effacbbfeb0 R14: 00000000000125bb R15: 00002000000004c0
[ 248.061052][ T6630]
[ 248.064075][ T6628] CPU: 1 PID: 6628 Comm: syz.5.419 Not tainted syzkaller #0
[ 248.064202][ T6630] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.071530][ T6628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 248.071542][ T6628] Call Trace:
[ 248.071549][ T6628]
[ 248.084647][ T6630] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.094662][ T6628] dump_stack_lvl+0x168/0x230
[ 248.094691][ T6628] ? show_regs_print_info+0x20/0x20
[ 248.102656][ T6632] loop4: detected capacity change from 0 to 32768
[ 248.107351][ T6628] ? load_image+0x3b0/0x3b0
[ 248.107385][ T6628] sysfs_create_dir_ns+0x252/0x280
[ 248.107413][ T6628] ? __lock_acquire+0x7c60/0x7c60
[ 248.107434][ T6628] ? sysfs_warn_dup+0xa0/0xa0
[ 248.107455][ T6628] ? do_raw_spin_unlock+0x11d/0x230
[ 248.107477][ T6628] kobject_add_internal+0x662/0xd00
[ 248.107503][ T6628] kobject_init_and_add+0x122/0x190
[ 248.107520][ T6628] ? lockdep_softirqs_off+0x420/0x420
[ 248.107543][ T6628] ? kobject_add+0x210/0x210
[ 248.107565][ T6628] ? __init_swait_queue_head+0xa5/0x150
[ 248.107590][ T6628] gfs2_sys_fs_add+0x234/0x480
[ 248.107611][ T6628] ? gfs2_recover_set+0x240/0x240
[ 248.107629][ T6628] ? snprintf+0xd7/0x120
[ 248.107648][ T6628] ? __free_pages+0x95/0x1a0
[ 248.107670][ T6628] ? vscnprintf+0x80/0x80
[ 248.107699][ T6628] gfs2_fill_super+0x128d/0x1f50
[ 248.107730][ T6628] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.107749][ T6628] ? preempt_count_add+0x8d/0x190
[ 248.107778][ T6628] ? sb_set_blocksize+0xa5/0xe0
[ 248.107801][ T6628] get_tree_bdev+0x3f1/0x610
[ 248.221543][ T6628] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.226582][ T6628] gfs2_get_tree+0x4d/0x1e0
[ 248.231101][ T6628] vfs_get_tree+0x88/0x270
[ 248.235531][ T6628] do_new_mount+0x24a/0xa40
[ 248.240062][ T6628] __se_sys_mount+0x2d6/0x3c0
[ 248.244750][ T6628] ? __x64_sys_mount+0xc0/0xc0
[ 248.249527][ T6628] ? lockdep_hardirqs_on+0x94/0x140
[ 248.254736][ T6628] ? __x64_sys_mount+0x1c/0xc0
[ 248.259503][ T6628] do_syscall_64+0x4c/0xa0
[ 248.263922][ T6628] ? clear_bhb_loop+0x30/0x80
[ 248.268596][ T6628] ? clear_bhb_loop+0x30/0x80
[ 248.273280][ T6628] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.279180][ T6628] RIP: 0033:0x7fa05610190a
[ 248.283861][ T6628] 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
[ 248.303473][ T6628] RSP: 002b:00007fa055370e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.311986][ T6628] RAX: ffffffffffffffda RBX: 00007fa055370ef0 RCX: 00007fa05610190a
[ 248.319965][ T6628] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fa055370eb0
[ 248.327942][ T6628] RBP: 0000200000000400 R08: 00007fa055370ef0 R09: 0000000000000000
[ 248.335933][ T6628] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.343998][ T6628] R13: 00007fa055370eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 248.351988][ T6628]
[ 248.355114][ T6628] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.368261][ T6628] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.393023][ T6632] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.400502][ T6632] CPU: 1 PID: 6632 Comm: syz.4.422 Not tainted syzkaller #0
[ 248.407799][ T6632] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 248.417872][ T6632] Call Trace:
[ 248.421162][ T6632]
[ 248.424097][ T6632] dump_stack_lvl+0x168/0x230
[ 248.428795][ T6632] ? show_regs_print_info+0x20/0x20
[ 248.433999][ T6632] ? load_image+0x3b0/0x3b0
[ 248.438655][ T6632] sysfs_create_dir_ns+0x252/0x280
[ 248.443782][ T6632] ? __lock_acquire+0x7c60/0x7c60
[ 248.448824][ T6632] ? sysfs_warn_dup+0xa0/0xa0
[ 248.453518][ T6632] ? do_raw_spin_unlock+0x11d/0x230
[ 248.458730][ T6632] kobject_add_internal+0x662/0xd00
[ 248.463942][ T6632] kobject_init_and_add+0x122/0x190
[ 248.469174][ T6632] ? lockdep_softirqs_off+0x420/0x420
[ 248.474557][ T6632] ? kobject_add+0x210/0x210
[ 248.479166][ T6632] ? __init_swait_queue_head+0xa5/0x150
[ 248.484727][ T6632] gfs2_sys_fs_add+0x234/0x480
[ 248.489496][ T6632] ? gfs2_recover_set+0x240/0x240
[ 248.494521][ T6632] ? snprintf+0xd7/0x120
[ 248.498767][ T6632] ? __free_pages+0x95/0x1a0
[ 248.503368][ T6632] ? vscnprintf+0x80/0x80
[ 248.507715][ T6632] gfs2_fill_super+0x128d/0x1f50
[ 248.512673][ T6632] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.517706][ T6632] ? preempt_count_add+0x8d/0x190
[ 248.522762][ T6632] ? sb_set_blocksize+0xa5/0xe0
[ 248.527625][ T6632] get_tree_bdev+0x3f1/0x610
[ 248.532223][ T6632] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.537259][ T6632] gfs2_get_tree+0x4d/0x1e0
[ 248.541770][ T6632] vfs_get_tree+0x88/0x270
[ 248.546199][ T6632] do_new_mount+0x24a/0xa40
[ 248.550715][ T6632] __se_sys_mount+0x2d6/0x3c0
[ 248.555404][ T6632] ? __x64_sys_mount+0xc0/0xc0
[ 248.560271][ T6632] ? lockdep_hardirqs_on+0x94/0x140
[ 248.565474][ T6632] ? __x64_sys_mount+0x1c/0xc0
[ 248.570240][ T6632] do_syscall_64+0x4c/0xa0
[ 248.574657][ T6632] ? clear_bhb_loop+0x30/0x80
[ 248.579332][ T6632] ? clear_bhb_loop+0x30/0x80
[ 248.584016][ T6632] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.589911][ T6632] RIP: 0033:0x7fcaa769990a
[ 248.594336][ T6632] 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
[ 248.613944][ T6632] RSP: 002b:00007fcaa6908e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.622360][ T6632] RAX: ffffffffffffffda RBX: 00007fcaa6908ef0 RCX: 00007fcaa769990a
[ 248.630540][ T6632] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fcaa6908eb0
[ 248.638526][ T6632] RBP: 0000200000000400 R08: 00007fcaa6908ef0 R09: 0000000000000000
[ 248.646510][ T6632] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.646725][ T6634] loop0: detected capacity change from 0 to 32768
[ 248.654489][ T6632] R13: 00007fcaa6908eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 248.654518][ T6632]
[ 248.657062][ T6632] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.685637][ T6632] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.734541][ T6634] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.741939][ T6634] CPU: 0 PID: 6634 Comm: syz.0.423 Not tainted syzkaller #0
[ 248.749223][ T6634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 248.759274][ T6634] Call Trace:
[ 248.762566][ T6634]
[ 248.765505][ T6634] dump_stack_lvl+0x168/0x230
[ 248.770187][ T6634] ? show_regs_print_info+0x20/0x20
[ 248.775383][ T6634] ? load_image+0x3b0/0x3b0
[ 248.779895][ T6634] sysfs_create_dir_ns+0x252/0x280
[ 248.785019][ T6634] ? __lock_acquire+0x7c60/0x7c60
[ 248.790065][ T6634] ? sysfs_warn_dup+0xa0/0xa0
[ 248.794769][ T6634] ? do_raw_spin_unlock+0x11d/0x230
[ 248.799981][ T6634] kobject_add_internal+0x662/0xd00
[ 248.805205][ T6634] kobject_init_and_add+0x122/0x190
[ 248.810411][ T6634] ? lockdep_softirqs_off+0x420/0x420
[ 248.815798][ T6634] ? kobject_add+0x210/0x210
[ 248.820401][ T6634] ? __init_swait_queue_head+0xa5/0x150
[ 248.825958][ T6634] gfs2_sys_fs_add+0x234/0x480
[ 248.830823][ T6634] ? gfs2_recover_set+0x240/0x240
[ 248.835853][ T6634] ? snprintf+0xd7/0x120
[ 248.840097][ T6634] ? __free_pages+0x95/0x1a0
[ 248.844705][ T6634] ? vscnprintf+0x80/0x80
[ 248.849054][ T6634] gfs2_fill_super+0x128d/0x1f50
[ 248.854019][ T6634] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.859057][ T6634] ? preempt_count_add+0x8d/0x190
[ 248.864112][ T6634] ? sb_set_blocksize+0xa5/0xe0
[ 248.868971][ T6634] get_tree_bdev+0x3f1/0x610
[ 248.873570][ T6634] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.878619][ T6634] gfs2_get_tree+0x4d/0x1e0
[ 248.883130][ T6634] vfs_get_tree+0x88/0x270
[ 248.887554][ T6634] do_new_mount+0x24a/0xa40
[ 248.892070][ T6634] __se_sys_mount+0x2d6/0x3c0
[ 248.896762][ T6634] ? __x64_sys_mount+0xc0/0xc0
[ 248.901532][ T6634] ? lockdep_hardirqs_on+0x94/0x140
[ 248.906740][ T6634] ? __x64_sys_mount+0x1c/0xc0
[ 248.911513][ T6634] do_syscall_64+0x4c/0xa0
[ 248.915936][ T6634] ? clear_bhb_loop+0x30/0x80
[ 248.920617][ T6634] ? clear_bhb_loop+0x30/0x80
[ 248.925298][ T6634] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.931630][ T6634] RIP: 0033:0x7effad95090a
[ 248.936052][ T6634] 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
[ 248.955664][ T6634] RSP: 002b:00007effacbbfe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.964086][ T6634] RAX: ffffffffffffffda RBX: 00007effacbbfef0 RCX: 00007effad95090a
[ 248.972072][ T6634] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007effacbbfeb0
[ 248.980055][ T6634] RBP: 0000200000000400 R08: 00007effacbbfef0 R09: 0000000000000000
[ 248.988037][ T6634] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.996017][ T6634] R13: 00007effacbbfeb0 R14: 00000000000125bb R15: 00002000000004c0
[ 249.004012][ T6634]
[ 249.008613][ T6634] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.021859][ T6634] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.207942][ T6622] loop2: detected capacity change from 0 to 32768
[ 249.292032][ T6623] loop3: detected capacity change from 0 to 32768
[ 249.309856][ T6636] loop5: detected capacity change from 0 to 32768
[ 249.493969][ T6638] loop4: detected capacity change from 0 to 32768
[ 249.508490][ T6636] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.516026][ T6636] CPU: 1 PID: 6636 Comm: syz.5.424 Not tainted syzkaller #0
[ 249.523318][ T6636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 249.533377][ T6636] Call Trace:
[ 249.536659][ T6636]
[ 249.539595][ T6636] dump_stack_lvl+0x168/0x230
[ 249.543108][ T6638] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.544278][ T6636] ? show_regs_print_info+0x20/0x20
[ 249.544302][ T6636] ? load_image+0x3b0/0x3b0
[ 249.544328][ T6636] sysfs_create_dir_ns+0x252/0x280
[ 249.566399][ T6636] ? __lock_acquire+0x7c60/0x7c60
[ 249.571426][ T6636] ? sysfs_warn_dup+0xa0/0xa0
[ 249.576099][ T6636] ? do_raw_spin_unlock+0x11d/0x230
[ 249.581290][ T6636] kobject_add_internal+0x662/0xd00
[ 249.586487][ T6636] kobject_init_and_add+0x122/0x190
[ 249.591687][ T6636] ? lockdep_softirqs_off+0x420/0x420
[ 249.597071][ T6636] ? kobject_add+0x210/0x210
[ 249.601668][ T6636] ? __init_swait_queue_head+0xa5/0x150
[ 249.607212][ T6636] gfs2_sys_fs_add+0x234/0x480
[ 249.611977][ T6636] ? gfs2_recover_set+0x240/0x240
[ 249.616996][ T6636] ? snprintf+0xd7/0x120
[ 249.621232][ T6636] ? __free_pages+0x95/0x1a0
[ 249.625815][ T6636] ? vscnprintf+0x80/0x80
[ 249.630145][ T6636] gfs2_fill_super+0x128d/0x1f50
[ 249.635082][ T6636] ? gfs2_reconfigure+0xcd0/0xcd0
[ 249.640097][ T6636] ? preempt_count_add+0x8d/0x190
[ 249.645119][ T6636] ? sb_set_blocksize+0xa5/0xe0
[ 249.650037][ T6636] get_tree_bdev+0x3f1/0x610
[ 249.654625][ T6636] ? gfs2_reconfigure+0xcd0/0xcd0
[ 249.659656][ T6636] gfs2_get_tree+0x4d/0x1e0
[ 249.664161][ T6636] vfs_get_tree+0x88/0x270
[ 249.668577][ T6636] do_new_mount+0x24a/0xa40
[ 249.673082][ T6636] __se_sys_mount+0x2d6/0x3c0
[ 249.677765][ T6636] ? __x64_sys_mount+0xc0/0xc0
[ 249.682529][ T6636] ? lockdep_hardirqs_on+0x94/0x140
[ 249.687717][ T6636] ? __x64_sys_mount+0x1c/0xc0
[ 249.692471][ T6636] do_syscall_64+0x4c/0xa0
[ 249.696875][ T6636] ? clear_bhb_loop+0x30/0x80
[ 249.701538][ T6636] ? clear_bhb_loop+0x30/0x80
[ 249.706215][ T6636] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 249.712096][ T6636] RIP: 0033:0x7fa05610190a
[ 249.716502][ T6636] 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
[ 249.736103][ T6636] RSP: 002b:00007fa055370e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.744516][ T6636] RAX: ffffffffffffffda RBX: 00007fa055370ef0 RCX: 00007fa05610190a
[ 249.752482][ T6636] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fa055370eb0
[ 249.760460][ T6636] RBP: 0000200000000400 R08: 00007fa055370ef0 R09: 0000000000000000
[ 249.768432][ T6636] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 249.776395][ T6636] R13: 00007fa055370eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 249.784384][ T6636]
[ 249.787403][ T6638] CPU: 0 PID: 6638 Comm: syz.4.425 Not tainted syzkaller #0
[ 249.788745][ T6636] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.794684][ T6638] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 249.794697][ T6638] Call Trace:
[ 249.794704][ T6638]
[ 249.794712][ T6638] dump_stack_lvl+0x168/0x230
[ 249.807833][ T6636] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.817846][ T6638] ? show_regs_print_info+0x20/0x20
[ 249.817874][ T6638] ? load_image+0x3b0/0x3b0
[ 249.817900][ T6638] sysfs_create_dir_ns+0x252/0x280
[ 249.817922][ T6638] ? __lock_acquire+0x7c60/0x7c60
[ 249.844527][ T6623] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.844911][ T6638] ? sysfs_warn_dup+0xa0/0xa0
[ 249.851684][ T6622] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.855018][ T6638] ? do_raw_spin_unlock+0x11d/0x230
[ 249.855052][ T6638] kobject_add_internal+0x662/0xd00
[ 249.855079][ T6638] kobject_init_and_add+0x122/0x190
[ 249.855095][ T6638] ? lockdep_softirqs_off+0x420/0x420
[ 249.855118][ T6638] ? kobject_add+0x210/0x210
[ 249.855140][ T6638] ? __init_swait_queue_head+0xa5/0x150
[ 249.855164][ T6638] gfs2_sys_fs_add+0x234/0x480
[ 249.855184][ T6638] ? gfs2_recover_set+0x240/0x240
[ 249.915241][ T6638] ? snprintf+0xd7/0x120
[ 249.919496][ T6638] ? __free_pages+0x95/0x1a0
[ 249.924093][ T6638] ? vscnprintf+0x80/0x80
[ 249.928447][ T6638] gfs2_fill_super+0x128d/0x1f50
[ 249.933405][ T6638] ? gfs2_reconfigure+0xcd0/0xcd0
[ 249.938439][ T6638] ? preempt_count_add+0x8d/0x190
[ 249.943538][ T6638] ? sb_set_blocksize+0xa5/0xe0
[ 249.948395][ T6638] get_tree_bdev+0x3f1/0x610
[ 249.952993][ T6638] ? gfs2_reconfigure+0xcd0/0xcd0
[ 249.958110][ T6638] gfs2_get_tree+0x4d/0x1e0
[ 249.962616][ T6638] vfs_get_tree+0x88/0x270
[ 249.967040][ T6638] do_new_mount+0x24a/0xa40
[ 249.971548][ T6638] __se_sys_mount+0x2d6/0x3c0
[ 249.976225][ T6638] ? __x64_sys_mount+0xc0/0xc0
[ 249.980995][ T6638] ? lockdep_hardirqs_on+0x94/0x140
[ 249.986203][ T6638] ? __x64_sys_mount+0x1c/0xc0
[ 249.990975][ T6638] do_syscall_64+0x4c/0xa0
[ 249.995394][ T6638] ? clear_bhb_loop+0x30/0x80
[ 250.000171][ T6638] ? clear_bhb_loop+0x30/0x80
[ 250.004851][ T6638] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.010748][ T6638] RIP: 0033:0x7fcaa769990a
[ 250.015167][ T6638] 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
[ 250.034924][ T6638] RSP: 002b:00007fcaa6908e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.043359][ T6638] RAX: ffffffffffffffda RBX: 00007fcaa6908ef0 RCX: 00007fcaa769990a
[ 250.051341][ T6638] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fcaa6908eb0
[ 250.059323][ T6638] RBP: 0000200000000400 R08: 00007fcaa6908ef0 R09: 0000000000000000
[ 250.067307][ T6638] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 250.075283][ T6638] R13: 00007fcaa6908eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 250.083267][ T6638]
[ 250.087134][ T6638] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.100271][ T6638] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.115371][ T6622] CPU: 0 PID: 6622 Comm: syz.2.418 Not tainted syzkaller #0
[ 250.118046][ T6640] loop0: detected capacity change from 0 to 32768
[ 250.122668][ T6622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 250.139110][ T6622] Call Trace:
[ 250.142387][ T6622]
[ 250.145315][ T6622] dump_stack_lvl+0x168/0x230
[ 250.150002][ T6622] ? show_regs_print_info+0x20/0x20
[ 250.155214][ T6622] ? load_image+0x3b0/0x3b0
[ 250.159734][ T6622] sysfs_create_dir_ns+0x252/0x280
[ 250.164852][ T6622] ? __lock_acquire+0x7c60/0x7c60
[ 250.169869][ T6622] ? sysfs_warn_dup+0xa0/0xa0
[ 250.174547][ T6622] ? do_raw_spin_unlock+0x11d/0x230
[ 250.179752][ T6622] kobject_add_internal+0x662/0xd00
[ 250.184963][ T6622] kobject_init_and_add+0x122/0x190
[ 250.190169][ T6622] ? lockdep_softirqs_off+0x420/0x420
[ 250.195542][ T6622] ? kobject_add+0x210/0x210
[ 250.200139][ T6622] ? __init_swait_queue_head+0xa5/0x150
[ 250.205689][ T6622] gfs2_sys_fs_add+0x234/0x480
[ 250.210457][ T6622] ? gfs2_recover_set+0x240/0x240
[ 250.215482][ T6622] ? snprintf+0xd7/0x120
[ 250.219725][ T6622] ? __free_pages+0x95/0x1a0
[ 250.224311][ T6622] ? vscnprintf+0x80/0x80
[ 250.228655][ T6622] gfs2_fill_super+0x128d/0x1f50
[ 250.233599][ T6622] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.238626][ T6622] ? preempt_count_add+0x8d/0x190
[ 250.243664][ T6622] ? sb_set_blocksize+0xa5/0xe0
[ 250.248520][ T6622] get_tree_bdev+0x3f1/0x610
[ 250.253114][ T6622] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.258135][ T6622] gfs2_get_tree+0x4d/0x1e0
[ 250.262663][ T6622] vfs_get_tree+0x88/0x270
[ 250.267088][ T6622] do_new_mount+0x24a/0xa40
[ 250.271596][ T6622] __se_sys_mount+0x2d6/0x3c0
[ 250.276283][ T6622] ? __x64_sys_mount+0xc0/0xc0
[ 250.281051][ T6622] ? lockdep_hardirqs_on+0x94/0x140
[ 250.286334][ T6622] ? __x64_sys_mount+0x1c/0xc0
[ 250.291094][ T6622] do_syscall_64+0x4c/0xa0
[ 250.295510][ T6622] ? clear_bhb_loop+0x30/0x80
[ 250.300186][ T6622] ? clear_bhb_loop+0x30/0x80
[ 250.304863][ T6622] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.310753][ T6622] RIP: 0033:0x7fdb5331090a
[ 250.315165][ T6622] 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
[ 250.334769][ T6622] RSP: 002b:00007fdb5253de68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.343194][ T6622] RAX: ffffffffffffffda RBX: 00007fdb5253def0 RCX: 00007fdb5331090a
[ 250.351164][ T6622] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdb5253deb0
[ 250.359136][ T6622] RBP: 0000200000000400 R08: 00007fdb5253def0 R09: 0000000000000000
[ 250.367108][ T6622] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 250.375082][ T6622] R13: 00007fdb5253deb0 R14: 00000000000125bb R15: 00002000000004c0
[ 250.383067][ T6622]
[ 250.388323][ T6623] CPU: 0 PID: 6623 Comm: syz.3.415 Not tainted syzkaller #0
[ 250.395620][ T6623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 250.405677][ T6623] Call Trace:
[ 250.408952][ T6623]
[ 250.411880][ T6623] dump_stack_lvl+0x168/0x230
[ 250.416561][ T6623] ? show_regs_print_info+0x20/0x20
[ 250.421764][ T6623] ? load_image+0x3b0/0x3b0
[ 250.426284][ T6623] sysfs_create_dir_ns+0x252/0x280
[ 250.431407][ T6623] ? __lock_acquire+0x7c60/0x7c60
[ 250.436441][ T6623] ? sysfs_warn_dup+0xa0/0xa0
[ 250.441129][ T6623] ? do_raw_spin_unlock+0x11d/0x230
[ 250.446340][ T6623] kobject_add_internal+0x662/0xd00
[ 250.451555][ T6623] kobject_init_and_add+0x122/0x190
[ 250.456763][ T6623] ? lockdep_softirqs_off+0x420/0x420
[ 250.462164][ T6623] ? kobject_add+0x210/0x210
[ 250.466788][ T6623] ? __init_swait_queue_head+0xa5/0x150
[ 250.472352][ T6623] gfs2_sys_fs_add+0x234/0x480
[ 250.477133][ T6623] ? gfs2_recover_set+0x240/0x240
[ 250.482178][ T6623] ? snprintf+0xd7/0x120
[ 250.486439][ T6623] ? __free_pages+0x95/0x1a0
[ 250.491058][ T6623] ? vscnprintf+0x80/0x80
[ 250.495495][ T6623] gfs2_fill_super+0x128d/0x1f50
[ 250.500455][ T6623] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.505497][ T6623] ? preempt_count_add+0x8d/0x190
[ 250.510540][ T6623] ? sb_set_blocksize+0xa5/0xe0
[ 250.515401][ T6623] get_tree_bdev+0x3f1/0x610
[ 250.520003][ T6623] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.525048][ T6623] gfs2_get_tree+0x4d/0x1e0
[ 250.529566][ T6623] vfs_get_tree+0x88/0x270
[ 250.529903][ T6622] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.534001][ T6623] do_new_mount+0x24a/0xa40
[ 250.534030][ T6623] __se_sys_mount+0x2d6/0x3c0
[ 250.553524][ T6622] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.556439][ T6623] ? __x64_sys_mount+0xc0/0xc0
[ 250.556466][ T6623] ? lockdep_hardirqs_on+0x94/0x140
[ 250.556485][ T6623] ? __x64_sys_mount+0x1c/0xc0
[ 250.556503][ T6623] do_syscall_64+0x4c/0xa0
[ 250.582091][ T6623] ? clear_bhb_loop+0x30/0x80
[ 250.586774][ T6623] ? clear_bhb_loop+0x30/0x80
[ 250.591441][ T6623] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.597326][ T6623] RIP: 0033:0x7f33eeb1a90a
[ 250.601743][ T6623] 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
[ 250.621428][ T6623] RSP: 002b:00007f33edd89e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.629848][ T6623] RAX: ffffffffffffffda RBX: 00007f33edd89ef0 RCX: 00007f33eeb1a90a
[ 250.637816][ T6623] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33edd89eb0
[ 250.645775][ T6623] RBP: 0000200000000400 R08: 00007f33edd89ef0 R09: 0000000000000000
[ 250.653752][ T6623] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 250.661708][ T6623] R13: 00007f33edd89eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 250.669672][ T6623]
[ 250.677571][ T6623] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.692841][ T6623] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.699602][ T6640] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.707013][ T6640] CPU: 1 PID: 6640 Comm: syz.0.426 Not tainted syzkaller #0
[ 250.714295][ T6640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 250.724360][ T6640] Call Trace:
[ 250.727646][ T6640]
[ 250.730579][ T6640] dump_stack_lvl+0x168/0x230
[ 250.735270][ T6640] ? show_regs_print_info+0x20/0x20
[ 250.740479][ T6640] ? load_image+0x3b0/0x3b0
[ 250.744996][ T6640] sysfs_create_dir_ns+0x252/0x280
[ 250.750115][ T6640] ? __lock_acquire+0x7c60/0x7c60
[ 250.755136][ T6640] ? sysfs_warn_dup+0xa0/0xa0
[ 250.759797][ T6640] ? do_raw_spin_unlock+0x11d/0x230
[ 250.764986][ T6640] kobject_add_internal+0x662/0xd00
[ 250.770194][ T6640] kobject_init_and_add+0x122/0x190
[ 250.775391][ T6640] ? lockdep_softirqs_off+0x420/0x420
[ 250.780768][ T6640] ? kobject_add+0x210/0x210
[ 250.785340][ T6640] ? __init_swait_queue_head+0xa5/0x150
[ 250.790871][ T6640] gfs2_sys_fs_add+0x234/0x480
[ 250.795620][ T6640] ? gfs2_recover_set+0x240/0x240
[ 250.800627][ T6640] ? snprintf+0xd7/0x120
[ 250.804851][ T6640] ? __free_pages+0x95/0x1a0
[ 250.809516][ T6640] ? vscnprintf+0x80/0x80
[ 250.813837][ T6640] gfs2_fill_super+0x128d/0x1f50
[ 250.818778][ T6640] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.823808][ T6640] ? preempt_count_add+0x8d/0x190
[ 250.828823][ T6640] ? sb_set_blocksize+0xa5/0xe0
[ 250.833658][ T6640] get_tree_bdev+0x3f1/0x610
[ 250.838232][ T6640] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.843257][ T6640] gfs2_get_tree+0x4d/0x1e0
[ 250.847744][ T6640] vfs_get_tree+0x88/0x270
[ 250.852138][ T6640] do_new_mount+0x24a/0xa40
[ 250.856631][ T6640] __se_sys_mount+0x2d6/0x3c0
[ 250.861345][ T6640] ? __x64_sys_mount+0xc0/0xc0
[ 250.866096][ T6640] ? lockdep_hardirqs_on+0x94/0x140
[ 250.871307][ T6640] ? __x64_sys_mount+0x1c/0xc0
[ 250.876071][ T6640] do_syscall_64+0x4c/0xa0
[ 250.880497][ T6640] ? clear_bhb_loop+0x30/0x80
[ 250.885157][ T6640] ? clear_bhb_loop+0x30/0x80
[ 250.889813][ T6640] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.895686][ T6640] RIP: 0033:0x7effad95090a
[ 250.900084][ T6640] 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
[ 250.919678][ T6640] RSP: 002b:00007effacbbfe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.928105][ T6640] RAX: ffffffffffffffda RBX: 00007effacbbfef0 RCX: 00007effad95090a
[ 250.936065][ T6640] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007effacbbfeb0
[ 250.944045][ T6640] RBP: 0000200000000400 R08: 00007effacbbfef0 R09: 0000000000000000
[ 250.952020][ T6640] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 250.959976][ T6640] R13: 00007effacbbfeb0 R14: 00000000000125bb R15: 00002000000004c0
[ 250.967950][ T6640]
[ 250.972033][ T6640] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.986837][ T6640] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.378178][ T6642] loop4: detected capacity change from 0 to 32768
[ 251.418408][ T6642] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.426476][ T6642] CPU: 0 PID: 6642 Comm: syz.4.428 Not tainted syzkaller #0
[ 251.433771][ T6642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 251.443832][ T6642] Call Trace:
[ 251.447117][ T6642]
[ 251.450048][ T6642] dump_stack_lvl+0x168/0x230
[ 251.454737][ T6642] ? show_regs_print_info+0x20/0x20
[ 251.459949][ T6642] ? load_image+0x3b0/0x3b0
[ 251.464478][ T6642] sysfs_create_dir_ns+0x252/0x280
[ 251.469596][ T6642] ? __lock_acquire+0x7c60/0x7c60
[ 251.474625][ T6642] ? sysfs_warn_dup+0xa0/0xa0
[ 251.479315][ T6642] ? do_raw_spin_unlock+0x11d/0x230
[ 251.484520][ T6642] kobject_add_internal+0x662/0xd00
[ 251.489727][ T6642] kobject_init_and_add+0x122/0x190
[ 251.494927][ T6642] ? lockdep_softirqs_off+0x420/0x420
[ 251.500310][ T6642] ? kobject_add+0x210/0x210
[ 251.504904][ T6642] ? __init_swait_queue_head+0xa5/0x150
[ 251.510455][ T6642] gfs2_sys_fs_add+0x234/0x480
[ 251.515220][ T6642] ? gfs2_recover_set+0x240/0x240
[ 251.520251][ T6642] ? snprintf+0xd7/0x120
[ 251.524496][ T6642] ? __free_pages+0x95/0x1a0
[ 251.529088][ T6642] ? vscnprintf+0x80/0x80
[ 251.533430][ T6642] gfs2_fill_super+0x128d/0x1f50
[ 251.538385][ T6642] ? gfs2_reconfigure+0xcd0/0xcd0
[ 251.543416][ T6642] ? preempt_count_add+0x8d/0x190
[ 251.548456][ T6642] ? sb_set_blocksize+0xa5/0xe0
[ 251.553314][ T6642] get_tree_bdev+0x3f1/0x610
[ 251.557909][ T6642] ? gfs2_reconfigure+0xcd0/0xcd0
[ 251.562938][ T6642] gfs2_get_tree+0x4d/0x1e0
[ 251.567441][ T6642] vfs_get_tree+0x88/0x270
[ 251.571858][ T6642] do_new_mount+0x24a/0xa40
[ 251.576375][ T6642] __se_sys_mount+0x2d6/0x3c0
[ 251.581077][ T6642] ? __x64_sys_mount+0xc0/0xc0
[ 251.585863][ T6642] ? lockdep_hardirqs_on+0x94/0x140
[ 251.591073][ T6642] ? __x64_sys_mount+0x1c/0xc0
[ 251.595851][ T6642] do_syscall_64+0x4c/0xa0
[ 251.600283][ T6642] ? clear_bhb_loop+0x30/0x80
[ 251.604969][ T6642] ? clear_bhb_loop+0x30/0x80
[ 251.609663][ T6642] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 251.615564][ T6642] RIP: 0033:0x7fcaa769990a
[ 251.619990][ T6642] 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
[ 251.639701][ T6642] RSP: 002b:00007fcaa6908e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.648131][ T6642] RAX: ffffffffffffffda RBX: 00007fcaa6908ef0 RCX: 00007fcaa769990a
[ 251.656115][ T6642] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fcaa6908eb0
[ 251.664093][ T6642] RBP: 0000200000000400 R08: 00007fcaa6908ef0 R09: 0000000000000000
[ 251.672073][ T6642] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 251.680050][ T6642] R13: 00007fcaa6908eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 251.688041][ T6642]
[ 251.691896][ T6642] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.705193][ T6642] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/12/14 02:35:18 executed programs: 425
[ 251.885404][ T6646] loop5: detected capacity change from 0 to 32768
[ 252.060756][ T6649] loop0: detected capacity change from 0 to 32768
[ 252.074939][ T6649] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.082532][ T6649] CPU: 0 PID: 6649 Comm: syz.0.431 Not tainted syzkaller #0
[ 252.089832][ T6649] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 252.099895][ T6649] Call Trace:
[ 252.103184][ T6649]
[ 252.106115][ T6649] dump_stack_lvl+0x168/0x230
[ 252.110800][ T6649] ? show_regs_print_info+0x20/0x20
[ 252.116001][ T6649] ? load_image+0x3b0/0x3b0
[ 252.120515][ T6649] sysfs_create_dir_ns+0x252/0x280
[ 252.125634][ T6649] ? __lock_acquire+0x7c60/0x7c60
[ 252.130668][ T6649] ? sysfs_warn_dup+0xa0/0xa0
[ 252.135356][ T6649] ? do_raw_spin_unlock+0x11d/0x230
[ 252.140558][ T6649] kobject_add_internal+0x662/0xd00
[ 252.145765][ T6649] kobject_init_and_add+0x122/0x190
[ 252.150968][ T6649] ? lockdep_softirqs_off+0x420/0x420
[ 252.156347][ T6649] ? kobject_add+0x210/0x210
[ 252.160943][ T6649] ? __init_swait_queue_head+0xa5/0x150
[ 252.166502][ T6649] gfs2_sys_fs_add+0x234/0x480
[ 252.171276][ T6649] ? gfs2_recover_set+0x240/0x240
[ 252.176300][ T6649] ? snprintf+0xd7/0x120
[ 252.180541][ T6649] ? __free_pages+0x95/0x1a0
[ 252.185136][ T6649] ? vscnprintf+0x80/0x80
[ 252.189824][ T6649] gfs2_fill_super+0x128d/0x1f50
[ 252.194775][ T6649] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.199803][ T6649] ? preempt_count_add+0x8d/0x190
[ 252.204844][ T6649] ? sb_set_blocksize+0xa5/0xe0
[ 252.206334][ T6651] loop3: detected capacity change from 0 to 32768
[ 252.209700][ T6649] get_tree_bdev+0x3f1/0x610
[ 252.220669][ T6649] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.225700][ T6649] gfs2_get_tree+0x4d/0x1e0
[ 252.230216][ T6649] vfs_get_tree+0x88/0x270
[ 252.235077][ T6649] do_new_mount+0x24a/0xa40
[ 252.239595][ T6649] __se_sys_mount+0x2d6/0x3c0
[ 252.244286][ T6649] ? __x64_sys_mount+0xc0/0xc0
[ 252.249060][ T6649] ? lockdep_hardirqs_on+0x94/0x140
[ 252.254253][ T6649] ? __x64_sys_mount+0x1c/0xc0
[ 252.259017][ T6649] do_syscall_64+0x4c/0xa0
[ 252.263444][ T6649] ? clear_bhb_loop+0x30/0x80
[ 252.268126][ T6649] ? clear_bhb_loop+0x30/0x80
[ 252.272804][ T6649] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.278703][ T6649] RIP: 0033:0x7effad95090a
[ 252.283122][ T6649] 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
[ 252.302730][ T6649] RSP: 002b:00007effacbbfe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.311161][ T6649] RAX: ffffffffffffffda RBX: 00007effacbbfef0 RCX: 00007effad95090a
[ 252.319142][ T6649] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007effacbbfeb0
[ 252.327122][ T6649] RBP: 0000200000000400 R08: 00007effacbbfef0 R09: 0000000000000000
[ 252.335187][ T6649] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.343170][ T6649] R13: 00007effacbbfeb0 R14: 00000000000125bb R15: 00002000000004c0
[ 252.351160][ T6649]
[ 252.354241][ T6649] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.367370][ T6649] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.375823][ T27] INFO: task syz.1.27:5369 blocked for more than 143 seconds.
[ 252.383490][ T27] Not tainted syzkaller #0
[ 252.469786][ T6646] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.477260][ T6646] CPU: 0 PID: 6646 Comm: syz.5.430 Not tainted syzkaller #0
[ 252.484639][ T6646] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 252.494696][ T6646] Call Trace:
[ 252.497977][ T6646]
[ 252.500909][ T6646] dump_stack_lvl+0x168/0x230
[ 252.505595][ T6646] ? show_regs_print_info+0x20/0x20
[ 252.510805][ T6646] ? load_image+0x3b0/0x3b0
[ 252.515340][ T6646] sysfs_create_dir_ns+0x252/0x280
[ 252.520462][ T6646] ? __lock_acquire+0x7c60/0x7c60
[ 252.525496][ T6646] ? sysfs_warn_dup+0xa0/0xa0
[ 252.530184][ T6646] ? do_raw_spin_unlock+0x11d/0x230
[ 252.535493][ T6646] kobject_add_internal+0x662/0xd00
[ 252.540706][ T6646] kobject_init_and_add+0x122/0x190
[ 252.545905][ T6646] ? lockdep_softirqs_off+0x420/0x420
[ 252.551287][ T6646] ? kobject_add+0x210/0x210
[ 252.555893][ T6646] ? __init_swait_queue_head+0xa5/0x150
[ 252.559474][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 252.561447][ T6646] gfs2_sys_fs_add+0x234/0x480
[ 252.570151][ T27] task:syz.1.27 state:D
[ 252.574856][ T6646] ? gfs2_recover_set+0x240/0x240
[ 252.574885][ T6646] ? snprintf+0xd7/0x120
[ 252.574902][ T6646] ? __free_pages+0x95/0x1a0
[ 252.574922][ T6646] ? vscnprintf+0x80/0x80
[ 252.574949][ T6646] gfs2_fill_super+0x128d/0x1f50
[ 252.574979][ T6646] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.575000][ T6646] ? preempt_count_add+0x8d/0x190
[ 252.575028][ T6646] ? sb_set_blocksize+0xa5/0xe0
[ 252.615443][ T27] stack:24960 pid: 5369 ppid: 5005 flags:0x00004004
[ 252.617663][ T6646] get_tree_bdev+0x3f1/0x610
[ 252.628977][ T6646] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.634031][ T6646] gfs2_get_tree+0x4d/0x1e0
[ 252.638548][ T6646] vfs_get_tree+0x88/0x270
[ 252.642979][ T6646] do_new_mount+0x24a/0xa40
[ 252.647514][ T6646] __se_sys_mount+0x2d6/0x3c0
[ 252.652204][ T6646] ? __x64_sys_mount+0xc0/0xc0
[ 252.656976][ T6646] ? lockdep_hardirqs_on+0x94/0x140
[ 252.662178][ T6646] ? __x64_sys_mount+0x1c/0xc0
[ 252.666946][ T6646] do_syscall_64+0x4c/0xa0
[ 252.671452][ T6646] ? clear_bhb_loop+0x30/0x80
[ 252.676131][ T6646] ? clear_bhb_loop+0x30/0x80
[ 252.680812][ T6646] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.686710][ T6646] RIP: 0033:0x7fa05610190a
[ 252.691130][ T6646] 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
[ 252.710737][ T6646] RSP: 002b:00007fa055370e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.719171][ T6646] RAX: ffffffffffffffda RBX: 00007fa055370ef0 RCX: 00007fa05610190a
[ 252.727154][ T6646] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fa055370eb0
[ 252.735127][ T6646] RBP: 0000200000000400 R08: 00007fa055370ef0 R09: 0000000000000000
[ 252.743097][ T6646] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.751062][ T6646] R13: 00007fa055370eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 252.759045][ T6646]
[ 252.763369][ T6646] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.776588][ T6646] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.907591][ T6656] loop4: detected capacity change from 0 to 32768
[ 252.923119][ T27] Call Trace:
[ 252.930965][ T6651] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.938424][ T6651] CPU: 1 PID: 6651 Comm: syz.3.427 Not tainted syzkaller #0
[ 252.945724][ T6651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 252.955780][ T6651] Call Trace:
[ 252.959060][ T6651]
[ 252.961997][ T6651] dump_stack_lvl+0x168/0x230
[ 252.966684][ T6651] ? show_regs_print_info+0x20/0x20
[ 252.971888][ T6651] ? load_image+0x3b0/0x3b0
[ 252.976407][ T6651] sysfs_create_dir_ns+0x252/0x280
[ 252.981531][ T6651] ? __lock_acquire+0x7c60/0x7c60
[ 252.986563][ T6651] ? sysfs_warn_dup+0xa0/0xa0
[ 252.991253][ T6651] ? do_raw_spin_unlock+0x11d/0x230
[ 252.996459][ T6651] kobject_add_internal+0x662/0xd00
[ 253.001666][ T6651] kobject_init_and_add+0x122/0x190
[ 253.006867][ T6651] ? lockdep_softirqs_off+0x420/0x420
[ 253.012246][ T6651] ? kobject_add+0x210/0x210
[ 253.016853][ T6651] ? __init_swait_queue_head+0xa5/0x150
[ 253.022403][ T6651] gfs2_sys_fs_add+0x234/0x480
[ 253.027177][ T6651] ? gfs2_recover_set+0x240/0x240
[ 253.032203][ T6651] ? snprintf+0xd7/0x120
[ 253.036445][ T6651] ? __free_pages+0x95/0x1a0
[ 253.041038][ T6651] ? vscnprintf+0x80/0x80
[ 253.045496][ T6651] gfs2_fill_super+0x128d/0x1f50
[ 253.050541][ T6651] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.055585][ T6651] ? preempt_count_add+0x8d/0x190
[ 253.060625][ T6651] ? sb_set_blocksize+0xa5/0xe0
[ 253.065484][ T6651] get_tree_bdev+0x3f1/0x610
[ 253.070076][ T6651] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.075104][ T6651] gfs2_get_tree+0x4d/0x1e0
[ 253.079618][ T6651] vfs_get_tree+0x88/0x270
[ 253.084045][ T6651] do_new_mount+0x24a/0xa40
[ 253.088735][ T6651] __se_sys_mount+0x2d6/0x3c0
[ 253.092242][ T27]
[ 253.093417][ T6651] ? __x64_sys_mount+0xc0/0xc0
[ 253.101091][ T6651] ? lockdep_hardirqs_on+0x94/0x140
[ 253.106299][ T6651] ? __x64_sys_mount+0x1c/0xc0
[ 253.111077][ T6651] do_syscall_64+0x4c/0xa0
[ 253.115495][ T6651] ? clear_bhb_loop+0x30/0x80
[ 253.120176][ T6651] ? clear_bhb_loop+0x30/0x80
[ 253.124862][ T6651] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 253.130756][ T6651] RIP: 0033:0x7f33eeb1a90a
[ 253.132789][ T27] __schedule+0x11bb/0x4390
[ 253.135161][ T6651] 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
[ 253.135178][ T6651] RSP: 002b:00007f33edd89e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.135198][ T6651] RAX: ffffffffffffffda RBX: 00007f33edd89ef0 RCX: 00007f33eeb1a90a
[ 253.175638][ T6651] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33edd89eb0
[ 253.176678][ T27] ? __lock_acquire+0x7c60/0x7c60
[ 253.183617][ T6651] RBP: 0000200000000400 R08: 00007f33edd89ef0 R09: 0000000000000000
[ 253.183632][ T6651] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 253.183644][ T6651] R13: 00007f33edd89eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 253.183670][ T6651]
[ 253.185061][ T6652] loop2: detected capacity change from 0 to 32768
[ 253.222692][ T6651] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.235832][ T6651] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 253.332670][ T27] ? release_firmware_map_entry+0x190/0x190
[ 253.374812][ T27] ? lockdep_hardirqs_off+0x70/0x100
[ 253.421688][ T27] ? _raw_spin_unlock_irqrestore+0x82/0x100
[ 253.448280][ T27] schedule+0x11b/0x1e0
[ 253.468516][ T27] schedule_timeout+0x97/0x280
[ 253.485305][ T27] ? console_conditional_schedule+0x40/0x40
[ 253.493348][ T27] ? lockdep_hardirqs_on_prepare+0x3fc/0x760
[ 253.511153][ T27] ? lock_chain_count+0x20/0x20
[ 253.519427][ T27] ? lock_chain_count+0x20/0x20
[ 253.527926][ T27] ? _raw_spin_unlock_irq+0x1f/0x40
[ 253.533149][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 253.543907][ T27] do_wait_for_common+0x29a/0x440
[ 253.558104][ T27] ? console_conditional_schedule+0x40/0x40
[ 253.564145][ T27] ? wait_for_completion_killable_timeout+0x60/0x60
[ 253.590449][ T27] ? _raw_spin_lock_irq+0xab/0xe0
[ 253.598467][ T27] ? try_to_wake_up+0x6cf/0x1050
[ 253.603439][ T27] wait_for_completion+0x48/0x60
[ 253.613016][ T27] kthread_stop+0x16e/0x540
[ 253.620153][ T27] gfs2_make_fs_ro+0x14c/0x5d0
[ 253.629278][ T27] ? gfs2_dinode_out+0xb00/0xb00
[ 253.638567][ T27] ? do_raw_spin_lock+0x11d/0x280
[ 253.643653][ T27] ? __rwlock_init+0x140/0x140
[ 253.653167][ T27] ? do_raw_spin_unlock+0x11d/0x230
[ 253.660941][ T27] ? gfs2_glock_is_locked_by_me+0x16f/0x190
[ 253.671389][ T27] gfs2_withdraw+0x5f9/0x1460
[ 253.678463][ T27] ? gfs2_lm+0x220/0x220
[ 253.682959][ T27] ? gfs2_meta_buffer+0x310/0x310
[ 253.692414][ T27] ? from_kuid_munged+0x690/0x690
[ 253.702183][ T27] gfs2_metatype_check_ii+0x74/0x90
[ 253.712617][ T27] gfs2_quota_init+0xc81/0xe80
[ 253.719715][ T27] ? qd_get+0x5f0/0x5f0
[ 253.724100][ T27] gfs2_make_fs_rw+0x3f5/0x560
[ 253.733259][ T27] ? _raw_spin_unlock+0x24/0x40
[ 253.742606][ T27] ? gfs2_glock_nq+0xcb0/0x1550
[ 253.752083][ T27] ? gfs2_jdesc_check+0x290/0x290
[ 253.759489][ T27] gfs2_fill_super+0x188a/0x1f50
[ 253.767196][ T27] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.772279][ T27] ? gfs2_glock_nq_num+0x82/0x1b0
[ 253.777377][ T27] ? preempt_count_add+0x8d/0x190
[ 253.782403][ T27] ? gfs2_freeze_lock+0x52/0xc0
[ 253.787301][ T27] ? sb_set_blocksize+0xa5/0xe0
[ 253.792151][ T27] get_tree_bdev+0x3f1/0x610
[ 253.796829][ T27] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.801859][ T27] gfs2_get_tree+0x4d/0x1e0
[ 253.806624][ T27] vfs_get_tree+0x88/0x270
[ 253.811056][ T27] do_new_mount+0x24a/0xa40
[ 253.815626][ T27] __se_sys_mount+0x2d6/0x3c0
[ 253.820314][ T27] ? __x64_sys_mount+0xc0/0xc0
[ 253.825166][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 253.830363][ T27] ? __x64_sys_mount+0x1c/0xc0
[ 253.835191][ T27] do_syscall_64+0x4c/0xa0
[ 253.839648][ T27] ? clear_bhb_loop+0x30/0x80
[ 253.844775][ T27] ? clear_bhb_loop+0x30/0x80
[ 253.849466][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 253.855452][ T27] RIP: 0033:0x7f57d501a90a
[ 253.860214][ T27] RSP: 002b:00007f57d4289e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.868643][ T27] RAX: ffffffffffffffda RBX: 00007f57d4289ef0 RCX: 00007f57d501a90a
[ 253.877367][ T27] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f57d4289eb0
[ 253.885439][ T27] RBP: 0000200000000400 R08: 00007f57d4289ef0 R09: 0000000000000000
[ 253.893427][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 253.901445][ T27] R13: 00007f57d4289eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 253.909457][ T27]
[ 253.912571][ T27] INFO: task gfs2_quotad:5378 blocked for more than 144 seconds.
[ 253.922505][ T27] Not tainted syzkaller #0
[ 253.927918][ T6658] loop5: detected capacity change from 0 to 32768
[ 253.944281][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 253.957894][ T6652] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.958110][ T6656] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.965409][ T6652] CPU: 0 PID: 6652 Comm: syz.2.432 Not tainted syzkaller #0
[ 253.965429][ T6652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 253.965440][ T6652] Call Trace:
[ 253.965446][ T6652]
[ 253.965454][ T6652] dump_stack_lvl+0x168/0x230
[ 253.965477][ T6652] ? show_regs_print_info+0x20/0x20
[ 253.965495][ T6652] ? load_image+0x3b0/0x3b0
[ 253.965522][ T6652] sysfs_create_dir_ns+0x252/0x280
[ 253.965544][ T6652] ? __lock_acquire+0x7c60/0x7c60
[ 253.965564][ T6652] ? sysfs_warn_dup+0xa0/0xa0
[ 253.965587][ T6652] ? do_raw_spin_unlock+0x11d/0x230
[ 253.965607][ T6652] kobject_add_internal+0x662/0xd00
[ 253.965632][ T6652] kobject_init_and_add+0x122/0x190
[ 253.965649][ T6652] ? lockdep_softirqs_off+0x420/0x420
[ 253.965671][ T6652] ? kobject_add+0x210/0x210
[ 253.965693][ T6652] ? __init_swait_queue_head+0xa5/0x150
[ 253.965717][ T6652] gfs2_sys_fs_add+0x234/0x480
[ 253.965738][ T6652] ? gfs2_recover_set+0x240/0x240
[ 253.965757][ T6652] ? snprintf+0xd7/0x120
[ 253.965775][ T6652] ? __free_pages+0x95/0x1a0
[ 253.965802][ T6652] ? vscnprintf+0x80/0x80
[ 253.965833][ T6652] gfs2_fill_super+0x128d/0x1f50
[ 253.965865][ T6652] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.965887][ T6652] ? preempt_count_add+0x8d/0x190
[ 253.965918][ T6652] ? sb_set_blocksize+0xa5/0xe0
[ 253.965940][ T6652] get_tree_bdev+0x3f1/0x610
[ 253.965961][ T6652] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.965982][ T6652] gfs2_get_tree+0x4d/0x1e0
[ 253.966002][ T6652] vfs_get_tree+0x88/0x270
[ 253.966022][ T6652] do_new_mount+0x24a/0xa40
[ 253.966048][ T6652] __se_sys_mount+0x2d6/0x3c0
[ 253.966071][ T6652] ? __x64_sys_mount+0xc0/0xc0
[ 253.966094][ T6652] ? lockdep_hardirqs_on+0x94/0x140
[ 253.966113][ T6652] ? __x64_sys_mount+0x1c/0xc0
[ 253.966133][ T6652] do_syscall_64+0x4c/0xa0
[ 253.966150][ T6652] ? clear_bhb_loop+0x30/0x80
[ 253.966169][ T6652] ? clear_bhb_loop+0x30/0x80
[ 253.966188][ T6652] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 253.966206][ T6652] RIP: 0033:0x7fdb5331090a
[ 253.966223][ T6652] 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
[ 253.966238][ T6652] RSP: 002b:00007fdb5257fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.966258][ T6652] RAX: ffffffffffffffda RBX: 00007fdb5257fef0 RCX: 00007fdb5331090a
[ 253.966272][ T6652] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdb5257feb0
[ 253.966285][ T6652] RBP: 0000200000000400 R08: 00007fdb5257fef0 R09: 0000000000000000
[ 253.966298][ T6652] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 253.966310][ T6652] R13: 00007fdb5257feb0 R14: 00000000000125bb R15: 00002000000004c0
[ 253.966337][ T6652]
[ 253.966356][ T6652] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.966370][ T6652] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 253.983430][ T27] task:gfs2_quotad state:D
[ 253.991690][ T6656] CPU: 1 PID: 6656 Comm: syz.4.433 Not tainted syzkaller #0
[ 253.991711][ T6656] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 253.991721][ T6656] Call Trace:
[ 253.991728][ T6656]
[ 253.991735][ T6656] dump_stack_lvl+0x168/0x230
[ 253.991759][ T6656] ? show_regs_print_info+0x20/0x20
[ 253.991776][ T6656] ? load_image+0x3b0/0x3b0
[ 253.991804][ T6656] sysfs_create_dir_ns+0x252/0x280
[ 254.005044][ T6660] loop0: detected capacity change from 0 to 32768
[ 254.007826][ T6656] ? __lock_acquire+0x7c60/0x7c60
[ 254.007854][ T6656] ? sysfs_warn_dup+0xa0/0xa0
[ 254.007878][ T6656] ? do_raw_spin_unlock+0x11d/0x230
[ 254.072185][ T27] stack:27112 pid: 5378 ppid: 2 flags:0x00004000
[ 254.076634][ T6656] kobject_add_internal+0x662/0xd00
[ 254.076666][ T6656] kobject_init_and_add+0x122/0x190
[ 254.122960][ T27] Call Trace:
[ 254.123655][ T6656] ? lockdep_softirqs_off+0x420/0x420
[ 254.143211][ T27]
[ 254.147357][ T6656] ? kobject_add+0x210/0x210
[ 254.147386][ T6656] ? __init_swait_queue_head+0xa5/0x150
[ 254.147409][ T6656] gfs2_sys_fs_add+0x234/0x480
[ 254.147429][ T6656] ? gfs2_recover_set+0x240/0x240
[ 254.147445][ T6656] ? snprintf+0xd7/0x120
[ 254.147463][ T6656] ? __free_pages+0x95/0x1a0
[ 254.147485][ T6656] ? vscnprintf+0x80/0x80
[ 254.147514][ T6656] gfs2_fill_super+0x128d/0x1f50
[ 254.147551][ T6656] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.147572][ T6656] ? preempt_count_add+0x8d/0x190
[ 254.147599][ T6656] ? sb_set_blocksize+0xa5/0xe0
[ 254.214225][ T27] __schedule+0x11bb/0x4390
[ 254.219181][ T6656] get_tree_bdev+0x3f1/0x610
[ 254.219212][ T6656] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.219235][ T6656] gfs2_get_tree+0x4d/0x1e0
[ 254.219256][ T6656] vfs_get_tree+0x88/0x270
[ 254.219275][ T6656] do_new_mount+0x24a/0xa40
[ 254.283878][ T27] ? lockdep_hardirqs_on_prepare+0x3fc/0x760
[ 254.286189][ T6656] __se_sys_mount+0x2d6/0x3c0
[ 254.286215][ T6656] ? __x64_sys_mount+0xc0/0xc0
[ 254.291605][ T27] ? lock_chain_count+0x20/0x20
[ 254.296052][ T6656] ? lockdep_hardirqs_on+0x94/0x140
[ 254.296075][ T6656] ? __x64_sys_mount+0x1c/0xc0
[ 254.296096][ T6656] do_syscall_64+0x4c/0xa0
[ 254.296113][ T6656] ? clear_bhb_loop+0x30/0x80
[ 254.296130][ T6656] ? clear_bhb_loop+0x30/0x80
[ 254.296147][ T6656] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 254.296165][ T6656] RIP: 0033:0x7fcaa769990a
[ 254.296181][ T6656] 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
[ 254.296194][ T6656] RSP: 002b:00007fcaa6908e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.296213][ T6656] RAX: ffffffffffffffda RBX: 00007fcaa6908ef0 RCX: 00007fcaa769990a
[ 254.296226][ T6656] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fcaa6908eb0
[ 254.296238][ T6656] RBP: 0000200000000400 R08: 00007fcaa6908ef0 R09: 0000000000000000
[ 254.296251][ T6656] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 254.296262][ T6656] R13: 00007fcaa6908eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 254.296288][ T6656]
[ 254.296357][ T6656] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.314264][ T27] ? release_firmware_map_entry+0x190/0x190
[ 254.317392][ T6656] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.362907][ T27] ? _raw_spin_lock_irqsave+0xb0/0xf0
[ 254.626807][ T6663] loop3: detected capacity change from 0 to 32768
[ 254.672990][ T27] ? _raw_spin_unlock_irqrestore+0x82/0x100
[ 254.685851][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 254.691097][ T27] ? _raw_spin_unlock_irqrestore+0xaa/0x100
[ 254.701530][ T27] schedule+0x11b/0x1e0
[ 254.708112][ T27] bit_wait+0xd/0xc0
[ 254.712126][ T27] out_of_line_wait_on_bit+0x15e/0x200
[ 254.727723][ T27] ? out_of_line_wait_on_bit_lock+0x160/0x160
[ 254.750104][ T27] ? __wait_on_bit+0x170/0x170
[ 254.769383][ T27] ? bit_waitqueue+0x30/0x30
[ 254.774029][ T27] ? do_raw_spin_unlock+0x11d/0x230
[ 254.804158][ T27] __gfs2_glock_dq+0x6b5/0xa10
[ 254.818321][ T27] gfs2_glock_dq_uninit+0x4f/0x110
[ 254.833937][ T27] gfs2_statfs_sync+0x6fa/0x780
[ 254.849108][ T27] ? update_statfs+0x320/0x320
[ 254.853908][ T27] ? finish_task_switch+0x12f/0x640
[ 254.868027][ T27] ? gfs2_statfs_sync+0x138/0x780
[ 254.873087][ T27] gfs2_quotad+0x365/0x880
[ 254.877544][ T27] ? gfs2_wake_up_statfs+0xc0/0xc0
[ 254.882659][ T27] ? _raw_spin_unlock_irqrestore+0x82/0x100
[ 254.888639][ T27] ? init_wait_entry+0xd0/0xd0
[ 254.893406][ T27] ? _raw_spin_unlock_irqrestore+0xaa/0x100
[ 254.899342][ T27] ? __kthread_parkme+0x157/0x1b0
[ 254.904418][ T27] kthread+0x436/0x520
[ 254.908493][ T27] ? gfs2_wake_up_statfs+0xc0/0xc0
[ 254.913594][ T27] ? kthread_blkcg+0xd0/0xd0
[ 254.918253][ T27] ret_from_fork+0x1f/0x30
[ 254.922676][ T27]
[ 254.925912][ T27]
[ 254.925912][ T27] Showing all locks held in the system:
[ 254.933739][ T27] 1 lock held by khungtaskd/27:
[ 254.939409][ T27] #0: ffffffff8c11c720 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 254.948926][ T27] 1 lock held by udevd/3559:
[ 254.953514][ T27] #0: ffff88801f85c518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x157/0xa60
[ 254.969799][ T6664] loop2: detected capacity change from 0 to 32768
[ 254.987811][ T6658] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.987814][ T6663] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.987830][ T6658] CPU: 1 PID: 6658 Comm: syz.5.435 Not tainted syzkaller #0
[ 255.009807][ T6658] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 255.019848][ T6658] Call Trace:
[ 255.023113][ T6658]
[ 255.026035][ T6658] dump_stack_lvl+0x168/0x230
[ 255.030718][ T6658] ? show_regs_print_info+0x20/0x20
[ 255.035905][ T6658] ? load_image+0x3b0/0x3b0
[ 255.040414][ T6658] sysfs_create_dir_ns+0x252/0x280
[ 255.045516][ T6658] ? __lock_acquire+0x7c60/0x7c60
[ 255.050544][ T6658] ? sysfs_warn_dup+0xa0/0xa0
[ 255.055217][ T6658] ? do_raw_spin_unlock+0x11d/0x230
[ 255.060440][ T6658] kobject_add_internal+0x662/0xd00
[ 255.065640][ T6658] kobject_init_and_add+0x122/0x190
[ 255.070830][ T6658] ? lockdep_softirqs_off+0x420/0x420
[ 255.076201][ T6658] ? kobject_add+0x210/0x210
[ 255.080782][ T6658] ? __init_swait_queue_head+0xa5/0x150
[ 255.086323][ T6658] gfs2_sys_fs_add+0x234/0x480
[ 255.091081][ T6658] ? gfs2_recover_set+0x240/0x240
[ 255.096095][ T6658] ? snprintf+0xd7/0x120
[ 255.100329][ T6658] ? __free_pages+0x95/0x1a0
[ 255.105001][ T6658] ? vscnprintf+0x80/0x80
[ 255.109333][ T6658] gfs2_fill_super+0x128d/0x1f50
[ 255.114278][ T6658] ? gfs2_reconfigure+0xcd0/0xcd0
[ 255.119293][ T6658] ? preempt_count_add+0x8d/0x190
[ 255.124317][ T6658] ? sb_set_blocksize+0xa5/0xe0
[ 255.129162][ T6658] get_tree_bdev+0x3f1/0x610
[ 255.133831][ T6658] ? gfs2_reconfigure+0xcd0/0xcd0
[ 255.138932][ T6658] gfs2_get_tree+0x4d/0x1e0
[ 255.143437][ T6658] vfs_get_tree+0x88/0x270
[ 255.147843][ T6658] do_new_mount+0x24a/0xa40
[ 255.152348][ T6658] __se_sys_mount+0x2d6/0x3c0
[ 255.157105][ T6658] ? __x64_sys_mount+0xc0/0xc0
[ 255.161860][ T6658] ? lockdep_hardirqs_on+0x94/0x140
[ 255.167049][ T6658] ? __x64_sys_mount+0x1c/0xc0
[ 255.171801][ T6658] do_syscall_64+0x4c/0xa0
[ 255.176205][ T6658] ? clear_bhb_loop+0x30/0x80
[ 255.180872][ T6658] ? clear_bhb_loop+0x30/0x80
[ 255.185546][ T6658] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.191431][ T6658] RIP: 0033:0x7fa05610190a
[ 255.195837][ T6658] 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
[ 255.215442][ T6658] RSP: 002b:00007fa055370e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.223852][ T6658] RAX: ffffffffffffffda RBX: 00007fa055370ef0 RCX: 00007fa05610190a
[ 255.231820][ T6658] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fa055370eb0
[ 255.239780][ T6658] RBP: 0000200000000400 R08: 00007fa055370ef0 R09: 0000000000000000
[ 255.247741][ T6658] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 255.255702][ T6658] R13: 00007fa055370eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 255.263678][ T6658]
[ 255.266688][ T6663] CPU: 0 PID: 6663 Comm: syz.3.437 Not tainted syzkaller #0
[ 255.267934][ T6658] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.273968][ T6663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 255.287933][ T6658] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.297177][ T6663] Call Trace:
[ 255.297185][ T6663]
[ 255.297193][ T6663] dump_stack_lvl+0x168/0x230
[ 255.297218][ T6663] ? show_regs_print_info+0x20/0x20
[ 255.319710][ T6663] ? load_image+0x3b0/0x3b0
[ 255.324238][ T6663] sysfs_create_dir_ns+0x252/0x280
[ 255.329360][ T6663] ? __lock_acquire+0x7c60/0x7c60
[ 255.334392][ T6663] ? sysfs_warn_dup+0xa0/0xa0
[ 255.339092][ T6663] ? do_raw_spin_unlock+0x11d/0x230
[ 255.344297][ T6663] kobject_add_internal+0x662/0xd00
[ 255.349508][ T6663] kobject_init_and_add+0x122/0x190
[ 255.354717][ T6663] ? lockdep_softirqs_off+0x420/0x420
[ 255.360105][ T6663] ? kobject_add+0x210/0x210
[ 255.364718][ T6663] ? __init_swait_queue_head+0xa5/0x150
[ 255.370281][ T6663] gfs2_sys_fs_add+0x234/0x480
[ 255.375055][ T6663] ? gfs2_recover_set+0x240/0x240
[ 255.380084][ T6663] ? snprintf+0xd7/0x120
[ 255.384334][ T6663] ? __free_pages+0x95/0x1a0
[ 255.388938][ T6663] ? vscnprintf+0x80/0x80
[ 255.393291][ T6663] gfs2_fill_super+0x128d/0x1f50
[ 255.398254][ T6663] ? gfs2_reconfigure+0xcd0/0xcd0
[ 255.402100][ T27] 2 locks held by getty/3946:
[ 255.403283][ T6663] ? preempt_count_add+0x8d/0x190
[ 255.413042][ T6663] ? sb_set_blocksize+0xa5/0xe0
[ 255.417909][ T6663] get_tree_bdev+0x3f1/0x610
[ 255.422515][ T6663] ? gfs2_reconfigure+0xcd0/0xcd0
[ 255.427954][ T6663] gfs2_get_tree+0x4d/0x1e0
[ 255.432477][ T6663] vfs_get_tree+0x88/0x270
[ 255.436907][ T6663] do_new_mount+0x24a/0xa40
[ 255.441426][ T6663] __se_sys_mount+0x2d6/0x3c0
[ 255.446116][ T6663] ? __x64_sys_mount+0xc0/0xc0
[ 255.450890][ T6663] ? lockdep_hardirqs_on+0x94/0x140
[ 255.456089][ T6663] ? __x64_sys_mount+0x1c/0xc0
[ 255.460865][ T6663] do_syscall_64+0x4c/0xa0
[ 255.465283][ T6663] ? clear_bhb_loop+0x30/0x80
[ 255.469965][ T6663] ? clear_bhb_loop+0x30/0x80
[ 255.474665][ T6663] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.480573][ T6663] RIP: 0033:0x7f33eeb1a90a
[ 255.485003][ T6663] 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
[ 255.504615][ T6663] RSP: 002b:00007f33edd89e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.513039][ T6663] RAX: ffffffffffffffda RBX: 00007f33edd89ef0 RCX: 00007f33eeb1a90a
[ 255.521016][ T6663] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33edd89eb0
[ 255.528989][ T6663] RBP: 0000200000000400 R08: 00007f33edd89ef0 R09: 0000000000000000
[ 255.536958][ T6663] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 255.544931][ T6663] R13: 00007f33edd89eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 255.552920][ T6663]
[ 255.560270][ T6663] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.573438][ T6663] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.585875][ T27] #0: ffff88814d922098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 255.596237][ T1421] ieee802154 phy0 wpan0: encryption failed: -22
[ 255.602536][ T1421] ieee802154 phy1 wpan1: encryption failed: -22
[ 255.620007][ T27] #1: ffffc900026562e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5ba/0x1a30
[ 255.662217][ T27] 1 lock held by udevd/4880:
[ 255.681333][ T27] 2 locks held by kworker/1:16/4989:
[ 255.823906][ T27] #0: ffff888016872138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x760/0x1000
[ 255.962758][ T27] #1: ffffc9000328fd00 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x7a3/0x1000
[ 255.984225][ T27] 3 locks held by kworker/1:18/4991:
[ 255.989544][ T27] #0: ffff888016870938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x760/0x1000
[ 256.018508][ T27] #1: ffffc9000338fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7a3/0x1000
[ 256.037748][ T27] #2: ffffffff8c1211a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x347/0x6b0
[ 256.051329][ T27] 2 locks held by udevd/5022:
[ 256.060634][ T27] #0: ffff88801f857918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x157/0xa60
[ 256.074542][ T27] #1: ffff888147c1e468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_open+0x6a/0x100
[ 256.083529][ T27] 1 lock held by syz.1.27/5369:
[ 256.096346][ T27] #0: ffff8880278380e0 (&type->s_umount_key#53/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950
[ 256.112667][ T27] 1 lock held by udevd/5546:
[ 256.119593][ T27] #0: ffff88801f850918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x157/0xa60
[ 256.134704][ T27] 2 locks held by udevd/6149:
[ 256.139400][ T27] #0: ffff88801f85c518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[ 256.149818][ T27] #1: ffff888147c21468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90
[ 256.159149][ T27] 1 lock held by syz.4.433/6656:
[ 256.164083][ T27] #0: ffff888147c1e468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90
[ 256.173371][ T27] 2 locks held by syz.0.436/6660:
[ 256.178769][ T27] #0: ffff88801f850918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[ 256.188755][ T27] #1: ffff88801f8e2468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 256.198316][ T27] 2 locks held by syz.2.438/6664:
[ 256.203348][ T27] #0: ffff88801f854118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[ 256.212789][ T27] #1: ffff888147c18468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 256.221816][ T27] 1 lock held by syz.3.440/6668:
[ 256.226794][ T27] #0: ffff88801f855d18 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x157/0xa60
[ 256.236901][ T27] 1 lock held by syz.5.441/6670:
[ 256.241831][ T27] #0: ffff88801f85c518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x157/0xa60
[ 256.251908][ T27]
[ 256.255339][ T27] =============================================
[ 256.255339][ T27]
[ 256.259801][ T6660] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.271186][ T6660] CPU: 0 PID: 6660 Comm: syz.0.436 Not tainted syzkaller #0
[ 256.278472][ T6660] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 256.288536][ T6660] Call Trace:
[ 256.291820][ T6660]
[ 256.294747][ T6660] dump_stack_lvl+0x168/0x230
[ 256.299427][ T6660] ? show_regs_print_info+0x20/0x20
[ 256.304625][ T6660] ? load_image+0x3b0/0x3b0
[ 256.309143][ T6660] sysfs_create_dir_ns+0x252/0x280
[ 256.314260][ T6660] ? __lock_acquire+0x7c60/0x7c60
[ 256.319291][ T6660] ? sysfs_warn_dup+0xa0/0xa0
[ 256.323979][ T6660] ? do_raw_spin_unlock+0x11d/0x230
[ 256.329183][ T6660] kobject_add_internal+0x662/0xd00
[ 256.334405][ T6660] kobject_init_and_add+0x122/0x190
[ 256.339653][ T6660] ? lockdep_softirqs_off+0x420/0x420
[ 256.345043][ T6660] ? kobject_add+0x210/0x210
[ 256.349650][ T6660] ? __init_swait_queue_head+0xa5/0x150
[ 256.355209][ T6660] gfs2_sys_fs_add+0x234/0x480
[ 256.357823][ T6664] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.359979][ T6660] ? gfs2_recover_set+0x240/0x240
[ 256.360002][ T6660] ? snprintf+0xd7/0x120
[ 256.360022][ T6660] ? __free_pages+0x95/0x1a0
[ 256.360044][ T6660] ? vscnprintf+0x80/0x80
[ 256.385617][ T6660] gfs2_fill_super+0x128d/0x1f50
[ 256.390567][ T6660] ? gfs2_reconfigure+0xcd0/0xcd0
[ 256.395590][ T6660] ? preempt_count_add+0x8d/0x190
[ 256.400621][ T6660] ? sb_set_blocksize+0xa5/0xe0
[ 256.405472][ T6660] get_tree_bdev+0x3f1/0x610
[ 256.410059][ T6660] ? gfs2_reconfigure+0xcd0/0xcd0
[ 256.415079][ T6660] gfs2_get_tree+0x4d/0x1e0
[ 256.419588][ T6660] vfs_get_tree+0x88/0x270
[ 256.424002][ T6660] do_new_mount+0x24a/0xa40
[ 256.428513][ T6660] __se_sys_mount+0x2d6/0x3c0
[ 256.433189][ T6660] ? __x64_sys_mount+0xc0/0xc0
[ 256.437960][ T6660] ? lockdep_hardirqs_on+0x94/0x140
[ 256.443271][ T6660] ? __x64_sys_mount+0x1c/0xc0
[ 256.448040][ T6660] do_syscall_64+0x4c/0xa0
[ 256.452457][ T6660] ? clear_bhb_loop+0x30/0x80
[ 256.457126][ T6660] ? clear_bhb_loop+0x30/0x80
[ 256.461797][ T6660] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 256.467681][ T6660] RIP: 0033:0x7effad95090a
[ 256.472264][ T6660] 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
[ 256.491857][ T6660] RSP: 002b:00007effacbbfe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.500350][ T6660] RAX: ffffffffffffffda RBX: 00007effacbbfef0 RCX: 00007effad95090a
[ 256.508320][ T6660] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007effacbbfeb0
[ 256.516283][ T6660] RBP: 0000200000000400 R08: 00007effacbbfef0 R09: 0000000000000000
[ 256.524242][ T6660] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 256.532201][ T6660] R13: 00007effacbbfeb0 R14: 00000000000125bb R15: 00002000000004c0
[ 256.540186][ T6660]
[ 256.543194][ T6664] CPU: 1 PID: 6664 Comm: syz.2.438 Not tainted syzkaller #0
[ 256.545353][ T6660] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.550474][ T6664] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 256.550486][ T6664] Call Trace:
[ 256.563610][ T6660] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.573617][ T6664]
[ 256.573633][ T6664] dump_stack_lvl+0x168/0x230
[ 256.573659][ T6664] ? show_regs_print_info+0x20/0x20
[ 256.586402][ T6668] loop3: detected capacity change from 0 to 32768
[ 256.591026][ T6664] ? load_image+0x3b0/0x3b0
[ 256.607120][ T6664] sysfs_create_dir_ns+0x252/0x280
[ 256.612251][ T6664] ? __lock_acquire+0x7c60/0x7c60
[ 256.613714][ T6670] loop5: detected capacity change from 0 to 32768
[ 256.617300][ T6664] ? sysfs_warn_dup+0xa0/0xa0
[ 256.617329][ T6664] ? do_raw_spin_unlock+0x11d/0x230
[ 256.633874][ T6664] kobject_add_internal+0x662/0xd00
[ 256.639094][ T6664] kobject_init_and_add+0x122/0x190
[ 256.644304][ T6664] ? lockdep_softirqs_off+0x420/0x420
[ 256.649698][ T6664] ? kobject_add+0x210/0x210
[ 256.654423][ T6664] ? __init_swait_queue_head+0xa5/0x150
[ 256.660097][ T6664] gfs2_sys_fs_add+0x234/0x480
[ 256.664963][ T6664] ? gfs2_recover_set+0x240/0x240
[ 256.669997][ T6664] ? snprintf+0xd7/0x120
[ 256.674246][ T6664] ? __free_pages+0x95/0x1a0
[ 256.678849][ T6664] ? vscnprintf+0x80/0x80
[ 256.683205][ T6664] gfs2_fill_super+0x128d/0x1f50
[ 256.688167][ T6664] ? gfs2_reconfigure+0xcd0/0xcd0
[ 256.693206][ T6664] ? preempt_count_add+0x8d/0x190
[ 256.698245][ T6664] ? sb_set_blocksize+0xa5/0xe0
[ 256.703107][ T6664] get_tree_bdev+0x3f1/0x610
[ 256.707716][ T6664] ? gfs2_reconfigure+0xcd0/0xcd0
[ 256.712765][ T6664] gfs2_get_tree+0x4d/0x1e0
[ 256.717282][ T6664] vfs_get_tree+0x88/0x270
[ 256.721697][ T6664] do_new_mount+0x24a/0xa40
[ 256.726199][ T6664] __se_sys_mount+0x2d6/0x3c0
[ 256.730875][ T6664] ? __x64_sys_mount+0xc0/0xc0
[ 256.735647][ T6664] ? lockdep_hardirqs_on+0x94/0x140
[ 256.740845][ T6664] ? __x64_sys_mount+0x1c/0xc0
[ 256.745610][ T6664] do_syscall_64+0x4c/0xa0
[ 256.750022][ T6664] ? clear_bhb_loop+0x30/0x80
[ 256.754689][ T6664] ? clear_bhb_loop+0x30/0x80
[ 256.759358][ T6664] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 256.765240][ T6664] RIP: 0033:0x7fdb5331090a
[ 256.769651][ T6664] 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
[ 256.789249][ T6664] RSP: 002b:00007fdb5257fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.797741][ T6664] RAX: ffffffffffffffda RBX: 00007fdb5257fef0 RCX: 00007fdb5331090a
[ 256.805700][ T6664] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdb5257feb0
[ 256.813660][ T6664] RBP: 0000200000000400 R08: 00007fdb5257fef0 R09: 0000000000000000
[ 256.821621][ T6664] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 256.829591][ T6664] R13: 00007fdb5257feb0 R14: 00000000000125bb R15: 00002000000004c0
[ 256.837567][ T6664]
[ 256.840663][ T27] NMI backtrace for cpu 0
[ 256.840751][ T6664] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.844982][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[ 256.845000][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 256.845015][ T27] Call Trace:
[ 256.858108][ T6664] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.865259][ T27]
[ 256.865268][ T27] dump_stack_lvl+0x168/0x230
[ 256.865288][ T27] ? asm_sysvec_apic_timer_interrupt+0x16/0x20
[ 256.865311][ T27] ? show_regs_print_info+0x20/0x20
[ 256.903979][ T27] ? load_image+0x3b0/0x3b0
[ 256.908496][ T27] ? nmi_cpu_backtrace+0x1b6/0x3d0
[ 256.913617][ T27] nmi_cpu_backtrace+0x397/0x3d0
[ 256.918566][ T27] ? nmi_trigger_cpumask_backtrace+0x280/0x280
[ 256.924726][ T27] ? _printk+0xcc/0x110
[ 256.929250][ T27] ? load_image+0x3b0/0x3b0
[ 256.933760][ T27] ? load_image+0x3b0/0x3b0
[ 256.938270][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 256.944343][ T27] nmi_trigger_cpumask_backtrace+0x163/0x280
[ 256.950335][ T27] watchdog+0xe0f/0xe50
[ 256.954509][ T27] kthread+0x436/0x520
[ 256.958632][ T27] ? hungtask_pm_notify+0x40/0x40
[ 256.963661][ T27] ? kthread_blkcg+0xd0/0xd0
[ 256.968254][ T27] ret_from_fork+0x1f/0x30
[ 256.972684][ T27]
[ 256.975731][ T27] Sending NMI from CPU 0 to CPUs 1:
[ 256.980942][ C1] NMI backtrace for cpu 1
[ 256.980954][ C1] CPU: 1 PID: 6672 Comm: syz.4.442 Not tainted syzkaller #0
[ 256.980969][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 256.980977][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x32/0x60
[ 256.980996][ C1] Code: a4 a3 8a 7e 65 8b 15 a5 a3 8a 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 34 16 00 00 00 74 2c 8b 91 10 16 00 00 <83> fa 02 75 21 48 8b 91 18 16 00 00 48 8b 32 48 8d 7e 01 8b 89 14
[ 256.981009][ C1] RSP: 0000:ffffc900061ffc50 EFLAGS: 00000246
[ 256.981022][ C1] RAX: ffffffff81b00d88 RBX: 0000000000000000 RCX: ffff8880209fd940
[ 256.981033][ C1] RDX: 0000000000000000 RSI: ffff88805630ea50 RDI: ffffea0001382900
[ 256.981043][ C1] RBP: dffffc0000000000 R08: dffffc0000000000 R09: ffffed100ee21891
[ 256.981054][ C1] R10: ffffed100ee21891 R11: 1ffff1100ee21890 R12: 00007fca9ed7b000
[ 256.981065][ C1] R13: ffff88805630ea50 R14: 0000000000000000 R15: ffffea0001382900
[ 256.981075][ C1] FS: 00007fcaa69096c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
[ 256.981088][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 256.981098][ C1] CR2: 00007fca9ed7b000 CR3: 000000001eeb2000 CR4: 00000000003506e0
[ 256.981112][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 256.981121][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 256.981130][ C1] Call Trace:
[ 256.981135][ C1]
2025/12/14 02:35:24 executed programs: 436
[ 256.981141][ C1] page_add_new_anon_rmap+0x28/0x8a0
[ 256.981160][ C1] handle_mm_fault+0x37c3/0x43b0
[ 256.981179][ C1] ? get_page+0xe0/0xe0
[ 256.981196][ C1] ? vmacache_find+0x238/0x590
[ 256.981212][ C1] ? find_vma+0xd2/0x230
[ 256.981226][ C1] do_user_addr_fault+0x489/0xc80
[ 256.981248][ C1] exc_page_fault+0x60/0x100
[ 256.981266][ C1] asm_exc_page_fault+0x22/0x30
[ 256.981280][ C1] RIP: 0033:0x7fcaa755ac90
[ 256.981294][ C1] Code: 39 4f 08 72 4c 8d 4d ff 85 ed 74 33 66 0f 1f 44 00 00 48 39 f0 72 1b 4d 8b 07 49 89 c1 49 29 f1 47 0f b6 0c 08 45 84 c9 74 08 <45> 88 0c 00 49 8b 47 10 48 83 c0 01 49 89 47 10 83 e9 01 73 d3 41
[ 256.981305][ C1] RSP: 002b:00007fcaa69084a0 EFLAGS: 00010202
[ 256.981317][ C1] RAX: 0000000000892000 RBX: 00007fcaa6908540 RCX: 0000000000000101
[ 256.981327][ C1] RDX: 00000000000003ff RSI: 0000000000001000 RDI: 00007fcaa69085e0
[ 256.981336][ C1] RBP: 0000000000000102 R08: 00007fca9e4e9000 R09: 0000000000000001
[ 256.981345][ C1] R10: 0000200000037082 R11: 00000000000125b9 R12: 0000000000000c01
[ 256.981355][ C1] R13: 00007fcaa77343e0 R14: 0000000000000017 R15: 00007fcaa69085e0
[ 256.981371][ C1]
[ 257.157106][ T6672] loop4: detected capacity change from 0 to 32768
[ 257.284391][ T6670] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.291883][ T6670] CPU: 1 PID: 6670 Comm: syz.5.441 Not tainted syzkaller #0
[ 257.299174][ T6670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 257.309253][ T6670] Call Trace:
[ 257.312540][ T6670]
[ 257.315467][ T6670] dump_stack_lvl+0x168/0x230
[ 257.320153][ T6670] ? show_regs_print_info+0x20/0x20
[ 257.325355][ T6670] ? load_image+0x3b0/0x3b0
[ 257.329876][ T6670] sysfs_create_dir_ns+0x252/0x280
[ 257.335002][ T6670] ? __lock_acquire+0x7c60/0x7c60
[ 257.340027][ T6670] ? sysfs_warn_dup+0xa0/0xa0
[ 257.344713][ T6670] ? do_raw_spin_unlock+0x11d/0x230
[ 257.349913][ T6670] kobject_add_internal+0x662/0xd00
[ 257.355114][ T6670] kobject_init_and_add+0x122/0x190
[ 257.360306][ T6670] ? lockdep_softirqs_off+0x420/0x420
[ 257.365683][ T6670] ? kobject_add+0x210/0x210
[ 257.370286][ T6670] ? __init_swait_queue_head+0xa5/0x150
[ 257.375839][ T6670] gfs2_sys_fs_add+0x234/0x480
[ 257.380616][ T6670] ? gfs2_recover_set+0x240/0x240
[ 257.385652][ T6670] ? snprintf+0xd7/0x120
[ 257.389898][ T6670] ? __free_pages+0x95/0x1a0
[ 257.394493][ T6670] ? vscnprintf+0x80/0x80
[ 257.398834][ T6670] gfs2_fill_super+0x128d/0x1f50
[ 257.403786][ T6670] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.408823][ T6670] ? preempt_count_add+0x8d/0x190
[ 257.413861][ T6670] ? sb_set_blocksize+0xa5/0xe0
[ 257.418720][ T6670] get_tree_bdev+0x3f1/0x610
[ 257.423315][ T6670] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.428346][ T6670] gfs2_get_tree+0x4d/0x1e0
[ 257.432854][ T6670] vfs_get_tree+0x88/0x270
[ 257.437271][ T6670] do_new_mount+0x24a/0xa40
[ 257.441784][ T6670] __se_sys_mount+0x2d6/0x3c0
[ 257.446467][ T6670] ? __x64_sys_mount+0xc0/0xc0
[ 257.451269][ T6670] ? lockdep_hardirqs_on+0x94/0x140
[ 257.456474][ T6670] ? __x64_sys_mount+0x1c/0xc0
[ 257.461249][ T6670] do_syscall_64+0x4c/0xa0
[ 257.465677][ T6670] ? clear_bhb_loop+0x30/0x80
[ 257.470365][ T6670] ? clear_bhb_loop+0x30/0x80
[ 257.475054][ T6670] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.480950][ T6670] RIP: 0033:0x7fa05610190a
[ 257.485367][ T6670] 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
[ 257.504974][ T6670] RSP: 002b:00007fa055370e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.513392][ T6670] RAX: ffffffffffffffda RBX: 00007fa055370ef0 RCX: 00007fa05610190a
[ 257.521365][ T6670] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fa055370eb0
[ 257.529337][ T6670] RBP: 0000200000000400 R08: 00007fa055370ef0 R09: 0000000000000000
[ 257.537305][ T6670] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 257.545371][ T6670] R13: 00007fa055370eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 257.553370][ T6670]
[ 257.557725][ T6670] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.559171][ T6672] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.571112][ T6670] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.575575][ T6668] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.578626][ T6672] CPU: 0 PID: 6672 Comm: syz.4.442 Not tainted syzkaller #0
[ 257.599656][ T6672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 257.609715][ T6672] Call Trace:
[ 257.612995][ T6672]
[ 257.615914][ T6672] dump_stack_lvl+0x168/0x230
[ 257.620591][ T6672] ? show_regs_print_info+0x20/0x20
[ 257.625907][ T6672] ? load_image+0x3b0/0x3b0
[ 257.630430][ T6672] sysfs_create_dir_ns+0x252/0x280
[ 257.635554][ T6672] ? __lock_acquire+0x7c60/0x7c60
[ 257.640576][ T6672] ? sysfs_warn_dup+0xa0/0xa0
[ 257.645258][ T6672] ? do_raw_spin_unlock+0x11d/0x230
[ 257.650456][ T6672] kobject_add_internal+0x662/0xd00
[ 257.655658][ T6672] kobject_init_and_add+0x122/0x190
[ 257.660848][ T6672] ? lockdep_softirqs_off+0x420/0x420
[ 257.666234][ T6672] ? kobject_add+0x210/0x210
[ 257.670818][ T6672] ? __init_swait_queue_head+0xa5/0x150
[ 257.676363][ T6672] gfs2_sys_fs_add+0x234/0x480
[ 257.681119][ T6672] ? gfs2_recover_set+0x240/0x240
[ 257.686130][ T6672] ? snprintf+0xd7/0x120
[ 257.690371][ T6672] ? __free_pages+0x95/0x1a0
[ 257.694956][ T6672] ? vscnprintf+0x80/0x80
[ 257.699283][ T6672] gfs2_fill_super+0x128d/0x1f50
[ 257.704224][ T6672] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.709237][ T6672] ? preempt_count_add+0x8d/0x190
[ 257.714297][ T6672] ? sb_set_blocksize+0xa5/0xe0
[ 257.719140][ T6672] get_tree_bdev+0x3f1/0x610
[ 257.723731][ T6672] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.728749][ T6672] gfs2_get_tree+0x4d/0x1e0
[ 257.733242][ T6672] vfs_get_tree+0x88/0x270
[ 257.737652][ T6672] do_new_mount+0x24a/0xa40
[ 257.742152][ T6672] __se_sys_mount+0x2d6/0x3c0
[ 257.746821][ T6672] ? __x64_sys_mount+0xc0/0xc0
[ 257.751575][ T6672] ? lockdep_hardirqs_on+0x94/0x140
[ 257.756762][ T6672] ? __x64_sys_mount+0x1c/0xc0
[ 257.761514][ T6672] do_syscall_64+0x4c/0xa0
[ 257.765915][ T6672] ? clear_bhb_loop+0x30/0x80
[ 257.770580][ T6672] ? clear_bhb_loop+0x30/0x80
[ 257.775246][ T6672] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.781137][ T6672] RIP: 0033:0x7fcaa769990a
[ 257.785543][ T6672] 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
[ 257.805137][ T6672] RSP: 002b:00007fcaa6908e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.813539][ T6672] RAX: ffffffffffffffda RBX: 00007fcaa6908ef0 RCX: 00007fcaa769990a
[ 257.821502][ T6672] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fcaa6908eb0
[ 257.829459][ T6672] RBP: 0000200000000400 R08: 00007fcaa6908ef0 R09: 0000000000000000
[ 257.837418][ T6672] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 257.845380][ T6672] R13: 00007fcaa6908eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 257.853364][ T6672]
[ 257.856370][ T6668] CPU: 1 PID: 6668 Comm: syz.3.440 Not tainted syzkaller #0
[ 257.856420][ T6672] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.863651][ T6668] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 257.863661][ T6668] Call Trace:
[ 257.863667][ T6668]
[ 257.863673][ T6668] dump_stack_lvl+0x168/0x230
[ 257.863698][ T6668] ? show_regs_print_info+0x20/0x20
[ 257.876788][ T6672] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.886801][ T6668] ? load_image+0x3b0/0x3b0
[ 257.886833][ T6668] sysfs_create_dir_ns+0x252/0x280
[ 257.918880][ T6668] ? __lock_acquire+0x7c60/0x7c60
[ 257.923918][ T6668] ? sysfs_warn_dup+0xa0/0xa0
[ 257.928609][ T6668] ? do_raw_spin_unlock+0x11d/0x230
[ 257.933818][ T6668] kobject_add_internal+0x662/0xd00
[ 257.939034][ T6668] kobject_init_and_add+0x122/0x190
[ 257.944337][ T6668] ? lockdep_softirqs_off+0x420/0x420
[ 257.949714][ T6668] ? kobject_add+0x210/0x210
[ 257.954313][ T6668] ? __init_swait_queue_head+0xa5/0x150
[ 257.959869][ T6668] gfs2_sys_fs_add+0x234/0x480
[ 257.964638][ T6668] ? gfs2_recover_set+0x240/0x240
[ 257.969665][ T6668] ? snprintf+0xd7/0x120
[ 257.973916][ T6668] ? __free_pages+0x95/0x1a0
[ 257.978512][ T6668] ? vscnprintf+0x80/0x80
[ 257.982856][ T6668] gfs2_fill_super+0x128d/0x1f50
[ 257.987814][ T6668] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.992846][ T6668] ? preempt_count_add+0x8d/0x190
[ 257.997885][ T6668] ? sb_set_blocksize+0xa5/0xe0
[ 258.002750][ T6668] get_tree_bdev+0x3f1/0x610
[ 258.007352][ T6668] ? gfs2_reconfigure+0xcd0/0xcd0
[ 258.012388][ T6668] gfs2_get_tree+0x4d/0x1e0
[ 258.016908][ T6668] vfs_get_tree+0x88/0x270
[ 258.021333][ T6668] do_new_mount+0x24a/0xa40
[ 258.025850][ T6668] __se_sys_mount+0x2d6/0x3c0
[ 258.030540][ T6668] ? __x64_sys_mount+0xc0/0xc0
[ 258.035311][ T6668] ? lockdep_hardirqs_on+0x94/0x140
[ 258.040512][ T6668] ? __x64_sys_mount+0x1c/0xc0
[ 258.045283][ T6668] do_syscall_64+0x4c/0xa0
[ 258.049707][ T6668] ? clear_bhb_loop+0x30/0x80
[ 258.054390][ T6668] ? clear_bhb_loop+0x30/0x80
[ 258.059078][ T6668] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 258.064974][ T6668] RIP: 0033:0x7f33eeb1a90a
[ 258.069393][ T6668] 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
[ 258.089012][ T6668] RSP: 002b:00007f33edd89e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.097444][ T6668] RAX: ffffffffffffffda RBX: 00007f33edd89ef0 RCX: 00007f33eeb1a90a
[ 258.105430][ T6668] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33edd89eb0
[ 258.113414][ T6668] RBP: 0000200000000400 R08: 00007f33edd89ef0 R09: 0000000000000000
[ 258.121396][ T6668] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 258.129378][ T6668] R13: 00007f33edd89eb0 R14: 00000000000125bb R15: 00002000000004c0
[ 258.137376][ T6668]
[ 258.141504][ T6668] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.156287][ T6668] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.743595][ T6683] loop0: detected capacity change from 0 to 32768
[ 258.753054][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 258.759925][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[ 258.767129][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 258.777187][ T27] Call Trace:
[ 258.780469][ T27]
[ 258.783401][ T27] dump_stack_lvl+0x168/0x230
[ 258.788086][ T27] ? show_regs_print_info+0x20/0x20
[ 258.793290][ T27] ? load_image+0x3b0/0x3b0
[ 258.797806][ T27] panic+0x2c9/0x7f0
[ 258.801694][ T27] ? schedule_preempt_disabled+0x20/0x20
[ 258.807337][ T27] ? bpf_jit_dump+0xd0/0xd0
[ 258.811834][ T27] ? __irq_work_queue_local+0x12c/0x190
[ 258.817383][ T27] ? nmi_trigger_cpumask_backtrace+0x260/0x280
[ 258.823541][ T27] watchdog+0xe4e/0xe50
[ 258.827711][ T27] kthread+0x436/0x520
[ 258.831787][ T27] ? hungtask_pm_notify+0x40/0x40
[ 258.836809][ T27] ? kthread_blkcg+0xd0/0xd0
[ 258.841407][ T27] ret_from_fork+0x1f/0x30
[ 258.845839][ T27]
[ 258.849199][ T27] Kernel Offset: disabled
[ 258.853527][ T27] Rebooting in 86400 seconds..