: 00007fff75434f80 R09: 0000000000000000
[ 242.906411][ T4945] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 242.914490][ T4945] R13: 00007fff75434f40 R14: 0000000000012616 R15: 0000200000000140
[ 242.922488][ T4945]
[ 242.927670][ T4945] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 242.941153][ T4945] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 243.067877][ T4946] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.075661][ T4946] CPU: 1 PID: 4946 Comm: syz.5.458 Not tainted syzkaller #0
[ 243.083126][ T4946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 243.093391][ T4946] Call Trace:
[ 243.096886][ T4946]
[ 243.099843][ T4946] dump_stack_lvl+0x188/0x250
[ 243.104705][ T4946] ? show_regs_print_info+0x20/0x20
[ 243.111885][ T4946] ? load_image+0x400/0x400
[ 243.116444][ T4946] sysfs_create_dir_ns+0x26a/0x290
[ 243.121824][ T4946] ? sysfs_warn_dup+0xa0/0xa0
[ 243.126544][ T4946] ? do_raw_spin_unlock+0x11d/0x230
[ 243.131984][ T4946] kobject_add_internal+0x6e0/0xd90
[ 243.137323][ T4946] kobject_init_and_add+0x128/0x190
[ 243.142565][ T4946] ? lockdep_softirqs_off+0x430/0x430
[ 243.147982][ T4946] ? kobject_add+0x230/0x230
[ 243.152615][ T4946] ? __init_swait_queue_head+0xa5/0x150
[ 243.158199][ T4946] gfs2_sys_fs_add+0x24f/0x4b0
[ 243.162999][ T4946] ? gfs2_recover_set+0x240/0x240
[ 243.168051][ T4946] ? snprintf+0xe5/0x140
[ 243.172323][ T4946] ? __free_pages+0x95/0x1a0
[ 243.176949][ T4946] ? vscnprintf+0x80/0x80
[ 243.181315][ T4946] gfs2_fill_super+0x120f/0x1f00
[ 243.186292][ T4946] ? gfs2_reconfigure+0xd30/0xd30
[ 243.191366][ T4946] ? sb_set_blocksize+0xa5/0xe0
[ 243.196247][ T4946] get_tree_bdev+0x3f1/0x610
[ 243.201242][ T4946] ? gfs2_reconfigure+0xd30/0xd30
[ 243.206355][ T4946] gfs2_get_tree+0x4d/0x1e0
[ 243.210886][ T4946] vfs_get_tree+0x88/0x270
[ 243.215334][ T4946] do_new_mount+0x24a/0xa40
[ 243.220049][ T4946] __se_sys_mount+0x2e3/0x3d0
[ 243.225247][ T4946] ? __x64_sys_mount+0xc0/0xc0
[ 243.230274][ T4946] ? lockdep_hardirqs_on+0x94/0x140
[ 243.235506][ T4946] ? __x64_sys_mount+0x1c/0xc0
[ 243.240300][ T4946] do_syscall_64+0x4c/0xa0
[ 243.244748][ T4946] ? clear_bhb_loop+0x30/0x80
[ 243.249451][ T4946] ? clear_bhb_loop+0x30/0x80
[ 243.254176][ T4946] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 243.260242][ T4946] RIP: 0033:0x7f0531c31a8a
[ 243.264716][ T4946] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 243.284822][ T4946] RSP: 002b:00007ffef59bb608 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 243.293512][ T4946] RAX: ffffffffffffffda RBX: 00007ffef59bb690 RCX: 00007f0531c31a8a
[ 243.301613][ T4946] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffef59bb650
[ 243.309715][ T4946] RBP: 00002000000124c0 R08: 00007ffef59bb690 R09: 0000000000000000
[ 243.317731][ T4946] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 243.325883][ T4946] R13: 00007ffef59bb650 R14: 0000000000012616 R15: 0000200000000140
[ 243.334007][ T4946]
[ 243.339744][ T4946] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 243.353044][ T4946] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 243.425856][ T4947] loop0: detected capacity change from 0 to 32768
2026/04/05 06:56:12 executed programs: 453
[ 243.718217][ T4948] loop2: detected capacity change from 0 to 32768
[ 243.781850][ T4949] loop3: detected capacity change from 0 to 32768
[ 243.839182][ T4949] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.846684][ T4949] CPU: 0 PID: 4949 Comm: syz.3.461 Not tainted syzkaller #0
[ 243.854001][ T4949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 243.864086][ T4949] Call Trace:
[ 243.867416][ T4949]
[ 243.870363][ T4949] dump_stack_lvl+0x188/0x250
[ 243.875072][ T4949] ? show_regs_print_info+0x20/0x20
[ 243.880308][ T4949] ? load_image+0x400/0x400
[ 243.884852][ T4949] sysfs_create_dir_ns+0x26a/0x290
[ 243.889989][ T4949] ? sysfs_warn_dup+0xa0/0xa0
[ 243.894704][ T4949] ? do_raw_spin_unlock+0x11d/0x230
[ 243.899939][ T4949] kobject_add_internal+0x6e0/0xd90
[ 243.905267][ T4949] kobject_init_and_add+0x128/0x190
[ 243.910498][ T4949] ? lockdep_softirqs_off+0x430/0x430
[ 243.916077][ T4949] ? kobject_add+0x230/0x230
[ 243.920928][ T4949] ? __init_swait_queue_head+0xa5/0x150
[ 243.926589][ T4949] gfs2_sys_fs_add+0x24f/0x4b0
[ 243.931475][ T4949] ? gfs2_recover_set+0x240/0x240
[ 243.936527][ T4949] ? snprintf+0xe5/0x140
[ 243.940794][ T4949] ? __free_pages+0x95/0x1a0
[ 243.945412][ T4949] ? vscnprintf+0x80/0x80
[ 243.949771][ T4949] gfs2_fill_super+0x120f/0x1f00
[ 243.954744][ T4949] ? gfs2_reconfigure+0xd30/0xd30
[ 243.959810][ T4949] ? sb_set_blocksize+0xa5/0xe0
[ 243.964691][ T4949] get_tree_bdev+0x3f1/0x610
[ 243.969562][ T4949] ? gfs2_reconfigure+0xd30/0xd30
[ 243.974608][ T4949] gfs2_get_tree+0x4d/0x1e0
[ 243.979203][ T4949] vfs_get_tree+0x88/0x270
[ 243.983650][ T4949] do_new_mount+0x24a/0xa40
[ 243.988204][ T4949] __se_sys_mount+0x2e3/0x3d0
[ 243.992921][ T4949] ? __x64_sys_mount+0xc0/0xc0
[ 243.997724][ T4949] ? lockdep_hardirqs_on+0x94/0x140
[ 244.003039][ T4949] ? __x64_sys_mount+0x1c/0xc0
[ 244.007840][ T4949] do_syscall_64+0x4c/0xa0
[ 244.012287][ T4949] ? clear_bhb_loop+0x30/0x80
[ 244.017078][ T4949] ? clear_bhb_loop+0x30/0x80
[ 244.021782][ T4949] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 244.027720][ T4949] RIP: 0033:0x7fe96f9d7a8a
[ 244.032173][ T4949] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 244.052246][ T4949] RSP: 002b:00007ffe741ea638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.060711][ T4949] RAX: ffffffffffffffda RBX: 00007ffe741ea6c0 RCX: 00007fe96f9d7a8a
[ 244.068714][ T4949] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffe741ea680
[ 244.076729][ T4949] RBP: 00002000000124c0 R08: 00007ffe741ea6c0 R09: 0000000000000000
[ 244.084827][ T4949] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 244.092922][ T4949] R13: 00007ffe741ea680 R14: 0000000000012616 R15: 0000200000000140
[ 244.101082][ T4949]
[ 244.105338][ T4949] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.119063][ T4949] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.123149][ T4950] loop1: detected capacity change from 0 to 32768
[ 244.233562][ T4947] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 244.233599][ T4948] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 244.241095][ T4947] CPU: 1 PID: 4947 Comm: syz.0.459 Not tainted syzkaller #0
[ 244.241118][ T4947] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 244.266788][ T4947] Call Trace:
[ 244.270246][ T4947]
[ 244.273360][ T4947] dump_stack_lvl+0x188/0x250
[ 244.278053][ T4947] ? show_regs_print_info+0x20/0x20
[ 244.283264][ T4947] ? load_image+0x400/0x400
[ 244.287781][ T4947] sysfs_create_dir_ns+0x26a/0x290
[ 244.292901][ T4947] ? sysfs_warn_dup+0xa0/0xa0
[ 244.297585][ T4947] ? do_raw_spin_unlock+0x11d/0x230
[ 244.302879][ T4947] kobject_add_internal+0x6e0/0xd90
[ 244.308088][ T4947] kobject_init_and_add+0x128/0x190
[ 244.313390][ T4947] ? lockdep_softirqs_off+0x430/0x430
[ 244.318783][ T4947] ? kobject_add+0x230/0x230
[ 244.323488][ T4947] ? __init_swait_queue_head+0xa5/0x150
[ 244.329682][ T4947] gfs2_sys_fs_add+0x24f/0x4b0
[ 244.334594][ T4947] ? gfs2_recover_set+0x240/0x240
[ 244.339659][ T4947] ? snprintf+0xe5/0x140
[ 244.344014][ T4947] ? __free_pages+0x95/0x1a0
[ 244.348641][ T4947] ? vscnprintf+0x80/0x80
[ 244.353046][ T4947] gfs2_fill_super+0x120f/0x1f00
[ 244.358027][ T4947] ? gfs2_reconfigure+0xd30/0xd30
[ 244.363247][ T4947] ? sb_set_blocksize+0xa5/0xe0
[ 244.368105][ T4947] get_tree_bdev+0x3f1/0x610
[ 244.372884][ T4947] ? gfs2_reconfigure+0xd30/0xd30
[ 244.377923][ T4947] gfs2_get_tree+0x4d/0x1e0
[ 244.382750][ T4947] vfs_get_tree+0x88/0x270
[ 244.387217][ T4947] do_new_mount+0x24a/0xa40
[ 244.391931][ T4947] __se_sys_mount+0x2e3/0x3d0
[ 244.396630][ T4947] ? __x64_sys_mount+0xc0/0xc0
[ 244.401428][ T4947] ? lockdep_hardirqs_on+0x94/0x140
[ 244.406647][ T4947] ? __x64_sys_mount+0x1c/0xc0
[ 244.411427][ T4947] do_syscall_64+0x4c/0xa0
[ 244.415850][ T4947] ? clear_bhb_loop+0x30/0x80
[ 244.420534][ T4947] ? clear_bhb_loop+0x30/0x80
[ 244.425224][ T4947] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 244.431220][ T4947] RIP: 0033:0x7f269053aa8a
[ 244.435815][ T4947] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 244.455517][ T4947] RSP: 002b:00007ffcd912c638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.464039][ T4947] RAX: ffffffffffffffda RBX: 00007ffcd912c6c0 RCX: 00007f269053aa8a
[ 244.472042][ T4947] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffcd912c680
[ 244.480106][ T4947] RBP: 00002000000124c0 R08: 00007ffcd912c6c0 R09: 0000000000000000
[ 244.488089][ T4947] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 244.496066][ T4947] R13: 00007ffcd912c680 R14: 0000000000012616 R15: 0000200000000140
[ 244.504055][ T4947]
[ 244.507079][ T4948] CPU: 0 PID: 4948 Comm: syz.2.460 Not tainted syzkaller #0
[ 244.508661][ T4947] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.514523][ T4948] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 244.514538][ T4948] Call Trace:
[ 244.529235][ T4947] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.538725][ T4948]
[ 244.538743][ T4948] dump_stack_lvl+0x188/0x250
[ 244.538774][ T4948] ? show_regs_print_info+0x20/0x20
[ 244.558411][ T4950] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 244.561579][ T4948] ? load_image+0x400/0x400
[ 244.573569][ T4948] sysfs_create_dir_ns+0x26a/0x290
[ 244.578692][ T4948] ? sysfs_warn_dup+0xa0/0xa0
[ 244.583462][ T4948] ? do_raw_spin_unlock+0x11d/0x230
[ 244.588667][ T4948] kobject_add_internal+0x6e0/0xd90
[ 244.593885][ T4948] kobject_init_and_add+0x128/0x190
[ 244.599214][ T4948] ? lockdep_softirqs_off+0x430/0x430
[ 244.604599][ T4948] ? kobject_add+0x230/0x230
[ 244.609201][ T4948] ? __init_swait_queue_head+0xa5/0x150
[ 244.614757][ T4948] gfs2_sys_fs_add+0x24f/0x4b0
[ 244.619621][ T4948] ? gfs2_recover_set+0x240/0x240
[ 244.624677][ T4948] ? snprintf+0xe5/0x140
[ 244.629011][ T4948] ? __free_pages+0x95/0x1a0
[ 244.633610][ T4948] ? vscnprintf+0x80/0x80
[ 244.638041][ T4948] gfs2_fill_super+0x120f/0x1f00
[ 244.643170][ T4948] ? gfs2_reconfigure+0xd30/0xd30
[ 244.648303][ T4948] ? sb_set_blocksize+0xa5/0xe0
[ 244.653157][ T4948] get_tree_bdev+0x3f1/0x610
[ 244.657761][ T4948] ? gfs2_reconfigure+0xd30/0xd30
[ 244.662809][ T4948] gfs2_get_tree+0x4d/0x1e0
[ 244.667327][ T4948] vfs_get_tree+0x88/0x270
[ 244.671758][ T4948] do_new_mount+0x24a/0xa40
[ 244.676278][ T4948] __se_sys_mount+0x2e3/0x3d0
[ 244.680967][ T4948] ? __x64_sys_mount+0xc0/0xc0
[ 244.685748][ T4948] ? lockdep_hardirqs_on+0x94/0x140
[ 244.691039][ T4948] ? __x64_sys_mount+0x1c/0xc0
[ 244.695815][ T4948] do_syscall_64+0x4c/0xa0
[ 244.700233][ T4948] ? clear_bhb_loop+0x30/0x80
[ 244.704913][ T4948] ? clear_bhb_loop+0x30/0x80
[ 244.709682][ T4948] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 244.715584][ T4948] RIP: 0033:0x7ff11ced5a8a
[ 244.720012][ T4948] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 244.739629][ T4948] RSP: 002b:00007ffc21711868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.748251][ T4948] RAX: ffffffffffffffda RBX: 00007ffc217118f0 RCX: 00007ff11ced5a8a
[ 244.756240][ T4948] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffc217118b0
[ 244.764233][ T4948] RBP: 00002000000124c0 R08: 00007ffc217118f0 R09: 0000000000000000
[ 244.772423][ T4948] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 244.780514][ T4948] R13: 00007ffc217118b0 R14: 0000000000012616 R15: 0000200000000140
[ 244.788508][ T4948]
[ 244.791565][ T4950] CPU: 1 PID: 4950 Comm: syz.1.462 Not tainted syzkaller #0
[ 244.793086][ T4948] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.798895][ T4950] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 244.798911][ T4950] Call Trace:
[ 244.798919][ T4950]
[ 244.798928][ T4950] dump_stack_lvl+0x188/0x250
[ 244.812070][ T4948] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.822086][ T4950] ? show_regs_print_info+0x20/0x20
[ 244.822122][ T4950] ? load_image+0x400/0x400
[ 244.849332][ T4950] sysfs_create_dir_ns+0x26a/0x290
[ 244.854496][ T4950] ? sysfs_warn_dup+0xa0/0xa0
[ 244.859211][ T4950] ? do_raw_spin_unlock+0x11d/0x230
[ 244.864480][ T4950] kobject_add_internal+0x6e0/0xd90
[ 244.869720][ T4950] kobject_init_and_add+0x128/0x190
[ 244.874952][ T4950] ? lockdep_softirqs_off+0x430/0x430
[ 244.880373][ T4950] ? kobject_add+0x230/0x230
[ 244.884998][ T4950] ? __init_swait_queue_head+0xa5/0x150
[ 244.890598][ T4950] gfs2_sys_fs_add+0x24f/0x4b0
[ 244.895390][ T4950] ? gfs2_recover_set+0x240/0x240
[ 244.900536][ T4950] ? snprintf+0xe5/0x140
[ 244.904807][ T4950] ? __free_pages+0x95/0x1a0
[ 244.909423][ T4950] ? vscnprintf+0x80/0x80
[ 244.913786][ T4950] gfs2_fill_super+0x120f/0x1f00
[ 244.918944][ T4950] ? gfs2_reconfigure+0xd30/0xd30
[ 244.924098][ T4950] ? sb_set_blocksize+0xa5/0xe0
[ 244.928980][ T4950] get_tree_bdev+0x3f1/0x610
[ 244.933609][ T4950] ? gfs2_reconfigure+0xd30/0xd30
[ 244.938754][ T4950] gfs2_get_tree+0x4d/0x1e0
[ 244.943462][ T4950] vfs_get_tree+0x88/0x270
[ 244.948004][ T4950] do_new_mount+0x24a/0xa40
[ 244.952645][ T4950] __se_sys_mount+0x2e3/0x3d0
[ 244.957391][ T4950] ? __x64_sys_mount+0xc0/0xc0
[ 244.962185][ T4950] ? lockdep_hardirqs_on+0x94/0x140
[ 244.967412][ T4950] ? __x64_sys_mount+0x1c/0xc0
[ 244.972201][ T4950] do_syscall_64+0x4c/0xa0
[ 244.976634][ T4950] ? clear_bhb_loop+0x30/0x80
[ 244.981329][ T4950] ? clear_bhb_loop+0x30/0x80
[ 244.986022][ T4950] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 244.991928][ T4950] RIP: 0033:0x7f621d05da8a
[ 244.996366][ T4950] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 245.016003][ T4950] RSP: 002b:00007fff75434ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.024458][ T4950] RAX: ffffffffffffffda RBX: 00007fff75434f80 RCX: 00007f621d05da8a
[ 245.032470][ T4950] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fff75434f40
[ 245.040567][ T4950] RBP: 00002000000124c0 R08: 00007fff75434f80 R09: 0000000000000000
[ 245.048574][ T4950] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 245.056669][ T4950] R13: 00007fff75434f40 R14: 0000000000012616 R15: 0000200000000140
[ 245.064695][ T4950]
[ 245.070746][ T4950] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.086538][ T4950] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.160305][ T4951] loop5: detected capacity change from 0 to 32768
[ 246.075659][ T4951] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 246.083471][ T4951] CPU: 1 PID: 4951 Comm: syz.5.463 Not tainted syzkaller #0
[ 246.090799][ T4951] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 246.101040][ T4951] Call Trace:
[ 246.104343][ T4951]
[ 246.107297][ T4951] dump_stack_lvl+0x188/0x250
[ 246.112012][ T4951] ? show_regs_print_info+0x20/0x20
[ 246.117241][ T4951] ? load_image+0x400/0x400
[ 246.121972][ T4951] sysfs_create_dir_ns+0x26a/0x290
[ 246.127110][ T4951] ? sysfs_warn_dup+0xa0/0xa0
[ 246.131817][ T4951] ? do_raw_spin_unlock+0x11d/0x230
[ 246.137045][ T4951] kobject_add_internal+0x6e0/0xd90
[ 246.142365][ T4951] kobject_init_and_add+0x128/0x190
[ 246.147605][ T4951] ? lockdep_softirqs_off+0x430/0x430
[ 246.153004][ T4951] ? kobject_add+0x230/0x230
[ 246.157628][ T4951] ? __init_swait_queue_head+0xa5/0x150
[ 246.163403][ T4951] gfs2_sys_fs_add+0x24f/0x4b0
[ 246.168189][ T4951] ? gfs2_recover_set+0x240/0x240
[ 246.173235][ T4951] ? snprintf+0xe5/0x140
[ 246.177508][ T4951] ? __free_pages+0x95/0x1a0
[ 246.182151][ T4951] ? vscnprintf+0x80/0x80
[ 246.186526][ T4951] gfs2_fill_super+0x120f/0x1f00
[ 246.191520][ T4951] ? gfs2_reconfigure+0xd30/0xd30
[ 246.196599][ T4951] ? sb_set_blocksize+0xa5/0xe0
[ 246.201578][ T4951] get_tree_bdev+0x3f1/0x610
[ 246.206205][ T4951] ? gfs2_reconfigure+0xd30/0xd30
[ 246.211265][ T4951] gfs2_get_tree+0x4d/0x1e0
[ 246.215801][ T4951] vfs_get_tree+0x88/0x270
[ 246.220253][ T4951] do_new_mount+0x24a/0xa40
[ 246.224794][ T4951] __se_sys_mount+0x2e3/0x3d0
[ 246.229514][ T4951] ? __x64_sys_mount+0xc0/0xc0
[ 246.234416][ T4951] ? lockdep_hardirqs_on+0x94/0x140
[ 246.239757][ T4951] ? __x64_sys_mount+0x1c/0xc0
[ 246.244578][ T4951] do_syscall_64+0x4c/0xa0
[ 246.249127][ T4951] ? clear_bhb_loop+0x30/0x80
[ 246.253842][ T4951] ? clear_bhb_loop+0x30/0x80
[ 246.258561][ T4951] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 246.264488][ T4951] RIP: 0033:0x7f0531c31a8a
[ 246.268936][ T4951] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 246.288676][ T4951] RSP: 002b:00007ffef59bb608 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 246.297233][ T4951] RAX: ffffffffffffffda RBX: 00007ffef59bb690 RCX: 00007f0531c31a8a
[ 246.305677][ T4951] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffef59bb650
[ 246.313877][ T4951] RBP: 00002000000124c0 R08: 00007ffef59bb690 R09: 0000000000000000
[ 246.321887][ T4951] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 246.330506][ T4951] R13: 00007ffef59bb650 R14: 0000000000012616 R15: 0000200000000140
[ 246.338638][ T4951]
[ 246.343941][ T4951] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 246.357396][ T4951] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 246.433321][ T4955] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 246.440810][ T4955] CPU: 0 PID: 4955 Comm: syz.3.467 Not tainted syzkaller #0
[ 246.448124][ T4955] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 246.458205][ T4955] Call Trace:
[ 246.461513][ T4955]
[ 246.464463][ T4955] dump_stack_lvl+0x188/0x250
[ 246.469176][ T4955] ? show_regs_print_info+0x20/0x20
[ 246.474409][ T4955] ? load_image+0x400/0x400
[ 246.479045][ T4955] sysfs_create_dir_ns+0x26a/0x290
[ 246.484211][ T4955] ? sysfs_warn_dup+0xa0/0xa0
[ 246.489103][ T4955] ? do_raw_spin_unlock+0x11d/0x230
[ 246.494338][ T4955] kobject_add_internal+0x6e0/0xd90
[ 246.499569][ T4955] kobject_init_and_add+0x128/0x190
[ 246.504791][ T4955] ? lockdep_softirqs_off+0x430/0x430
[ 246.510220][ T4955] ? kobject_add+0x230/0x230
[ 246.514842][ T4955] ? __init_swait_queue_head+0xa5/0x150
[ 246.520765][ T4955] gfs2_sys_fs_add+0x24f/0x4b0
[ 246.525555][ T4955] ? gfs2_recover_set+0x240/0x240
[ 246.530613][ T4955] ? snprintf+0xe5/0x140
[ 246.534878][ T4955] ? __free_pages+0x95/0x1a0
[ 246.539491][ T4955] ? vscnprintf+0x80/0x80
[ 246.543847][ T4955] gfs2_fill_super+0x120f/0x1f00
[ 246.548823][ T4955] ? gfs2_reconfigure+0xd30/0xd30
[ 246.553882][ T4955] ? sb_set_blocksize+0xa5/0xe0
[ 246.558752][ T4955] get_tree_bdev+0x3f1/0x610
[ 246.563362][ T4955] ? gfs2_reconfigure+0xd30/0xd30
[ 246.568416][ T4955] gfs2_get_tree+0x4d/0x1e0
[ 246.572957][ T4955] vfs_get_tree+0x88/0x270
[ 246.577495][ T4955] do_new_mount+0x24a/0xa40
[ 246.582049][ T4955] __se_sys_mount+0x2e3/0x3d0
[ 246.586764][ T4955] ? __x64_sys_mount+0xc0/0xc0
[ 246.591746][ T4955] ? lockdep_hardirqs_on+0x94/0x140
[ 246.596984][ T4955] ? __x64_sys_mount+0x1c/0xc0
[ 246.601872][ T4955] do_syscall_64+0x4c/0xa0
[ 246.606321][ T4955] ? clear_bhb_loop+0x30/0x80
[ 246.611120][ T4955] ? clear_bhb_loop+0x30/0x80
[ 246.615826][ T4955] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 246.621840][ T4955] RIP: 0033:0x7fe96f9d7a8a
[ 246.626284][ T4955] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 246.646221][ T4955] RSP: 002b:00007ffe741ea638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 246.654754][ T4955] RAX: ffffffffffffffda RBX: 00007ffe741ea6c0 RCX: 00007fe96f9d7a8a
[ 246.662761][ T4955] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffe741ea680
[ 246.670956][ T4955] RBP: 00002000000124c0 R08: 00007ffe741ea6c0 R09: 0000000000000000
[ 246.679048][ T4955] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 246.687058][ T4955] R13: 00007ffe741ea680 R14: 0000000000012616 R15: 0000200000000140
[ 246.695076][ T4955]
[ 246.698197][ T4955] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 246.711365][ T4955] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.176442][ T4960] set_capacity_and_notify: 1 callbacks suppressed
[ 248.176461][ T4960] loop2: detected capacity change from 0 to 32768
[ 248.299005][ T4960] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.306971][ T4960] CPU: 0 PID: 4960 Comm: syz.2.473 Not tainted syzkaller #0
[ 248.314735][ T4960] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 248.324831][ T4960] Call Trace:
[ 248.328147][ T4960]
[ 248.331170][ T4960] dump_stack_lvl+0x188/0x250
[ 248.335987][ T4960] ? show_regs_print_info+0x20/0x20
[ 248.341345][ T4960] ? load_image+0x400/0x400
[ 248.345897][ T4960] sysfs_create_dir_ns+0x26a/0x290
[ 248.351062][ T4960] ? sysfs_warn_dup+0xa0/0xa0
[ 248.355768][ T4960] ? do_raw_spin_unlock+0x11d/0x230
[ 248.361002][ T4960] kobject_add_internal+0x6e0/0xd90
[ 248.366241][ T4960] kobject_init_and_add+0x128/0x190
[ 248.371617][ T4960] ? lockdep_softirqs_off+0x430/0x430
[ 248.377022][ T4960] ? kobject_add+0x230/0x230
[ 248.381650][ T4960] ? __init_swait_queue_head+0xa5/0x150
[ 248.387229][ T4960] gfs2_sys_fs_add+0x24f/0x4b0
[ 248.392195][ T4960] ? gfs2_recover_set+0x240/0x240
[ 248.396935][ T4964] loop5: detected capacity change from 0 to 32768
[ 248.397277][ T4960] ? snprintf+0xe5/0x140
[ 248.408221][ T4960] ? __free_pages+0x95/0x1a0
[ 248.412862][ T4960] ? vscnprintf+0x80/0x80
[ 248.417348][ T4960] gfs2_fill_super+0x120f/0x1f00
[ 248.422596][ T4960] ? gfs2_reconfigure+0xd30/0xd30
[ 248.427864][ T4960] ? sb_set_blocksize+0xa5/0xe0
[ 248.432761][ T4960] get_tree_bdev+0x3f1/0x610
[ 248.437406][ T4960] ? gfs2_reconfigure+0xd30/0xd30
[ 248.442493][ T4960] gfs2_get_tree+0x4d/0x1e0
[ 248.447118][ T4960] vfs_get_tree+0x88/0x270
[ 248.451707][ T4960] do_new_mount+0x24a/0xa40
[ 248.456335][ T4960] __se_sys_mount+0x2e3/0x3d0
[ 248.461059][ T4960] ? __x64_sys_mount+0xc0/0xc0
[ 248.466032][ T4960] ? lockdep_hardirqs_on+0x94/0x140
[ 248.471275][ T4960] ? __x64_sys_mount+0x1c/0xc0
[ 248.476155][ T4960] do_syscall_64+0x4c/0xa0
[ 248.480700][ T4960] ? clear_bhb_loop+0x30/0x80
[ 248.485403][ T4960] ? clear_bhb_loop+0x30/0x80
[ 248.490114][ T4960] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.496045][ T4960] RIP: 0033:0x7ff11ced5a8a
[ 248.500496][ T4960] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 248.520135][ T4960] RSP: 002b:00007ffc21711868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.528580][ T4960] RAX: ffffffffffffffda RBX: 00007ffc217118f0 RCX: 00007ff11ced5a8a
[ 248.536566][ T4960] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffc217118b0
[ 248.544561][ T4960] RBP: 00002000000124c0 R08: 00007ffc217118f0 R09: 0000000000000000
[ 248.552654][ T4960] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.560747][ T4960] R13: 00007ffc217118b0 R14: 0000000000012616 R15: 0000200000000140
[ 248.568770][ T4960]
[ 248.572674][ T4960] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.585950][ T4960] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.698741][ T4964] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.706304][ T4964] CPU: 0 PID: 4964 Comm: syz.5.476 Not tainted syzkaller #0
[ 248.708461][ T4965] loop0: detected capacity change from 0 to 32768
[ 248.713706][ T4964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 248.713721][ T4964] Call Trace:
[ 248.713728][ T4964]
[ 248.713737][ T4964] dump_stack_lvl+0x188/0x250
[ 248.713766][ T4964] ? show_regs_print_info+0x20/0x20
[ 248.713792][ T4964] ? load_image+0x400/0x400
[ 248.713824][ T4964] sysfs_create_dir_ns+0x26a/0x290
[ 248.713850][ T4964] ? sysfs_warn_dup+0xa0/0xa0
[ 248.713872][ T4964] ? do_raw_spin_unlock+0x11d/0x230
[ 248.713899][ T4964] kobject_add_internal+0x6e0/0xd90
[ 248.713932][ T4964] kobject_init_and_add+0x128/0x190
[ 248.713954][ T4964] ? lockdep_softirqs_off+0x430/0x430
[ 248.713982][ T4964] ? kobject_add+0x230/0x230
[ 248.714010][ T4964] ? __init_swait_queue_head+0xa5/0x150
[ 248.714039][ T4964] gfs2_sys_fs_add+0x24f/0x4b0
[ 248.714065][ T4964] ? gfs2_recover_set+0x240/0x240
[ 248.714088][ T4964] ? snprintf+0xe5/0x140
[ 248.714106][ T4964] ? __free_pages+0x95/0x1a0
[ 248.714133][ T4964] ? vscnprintf+0x80/0x80
[ 248.714167][ T4964] gfs2_fill_super+0x120f/0x1f00
[ 248.714206][ T4964] ? gfs2_reconfigure+0xd30/0xd30
[ 248.714249][ T4964] ? sb_set_blocksize+0xa5/0xe0
[ 248.714273][ T4964] get_tree_bdev+0x3f1/0x610
[ 248.714298][ T4964] ? gfs2_reconfigure+0xd30/0xd30
[ 248.714323][ T4964] gfs2_get_tree+0x4d/0x1e0
[ 248.714355][ T4964] vfs_get_tree+0x88/0x270
[ 248.714381][ T4964] do_new_mount+0x24a/0xa40
[ 248.714412][ T4964] __se_sys_mount+0x2e3/0x3d0
[ 248.714441][ T4964] ? __x64_sys_mount+0xc0/0xc0
[ 248.714468][ T4964] ? lockdep_hardirqs_on+0x94/0x140
[ 248.714490][ T4964] ? __x64_sys_mount+0x1c/0xc0
[ 248.714515][ T4964] do_syscall_64+0x4c/0xa0
[ 248.714534][ T4964] ? clear_bhb_loop+0x30/0x80
[ 248.714555][ T4964] ? clear_bhb_loop+0x30/0x80
[ 248.714576][ T4964] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.714597][ T4964] RIP: 0033:0x7f0531c31a8a
[ 248.714618][ T4964] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 248.714636][ T4964] RSP: 002b:00007ffef59bb608 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.714660][ T4964] RAX: ffffffffffffffda RBX: 00007ffef59bb690 RCX: 00007f0531c31a8a
[ 248.714675][ T4964] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffef59bb650
[ 248.714691][ T4964] RBP: 00002000000124c0 R08: 00007ffef59bb690 R09: 0000000000000000
[ 248.714706][ T4964] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.714721][ T4964] R13: 00007ffef59bb650 R14: 0000000000012616 R15: 0000200000000140
[ 248.714752][ T4964]
[ 248.715230][ T4964] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.836897][ T4963] loop1: detected capacity change from 0 to 32768
[ 248.838713][ T4964] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.038134][ T4965] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.045637][ T4965] CPU: 0 PID: 4965 Comm: syz.0.477 Not tainted syzkaller #0
[ 249.052967][ T4965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 249.063253][ T4965] Call Trace:
[ 249.066564][ T4965]
[ 249.069521][ T4965] dump_stack_lvl+0x188/0x250
[ 249.074237][ T4965] ? show_regs_print_info+0x20/0x20
[ 249.079469][ T4965] ? load_image+0x400/0x400
[ 249.084119][ T4965] sysfs_create_dir_ns+0x26a/0x290
[ 249.089259][ T4965] ? sysfs_warn_dup+0xa0/0xa0
[ 249.094325][ T4965] ? do_raw_spin_unlock+0x11d/0x230
[ 249.099671][ T4965] kobject_add_internal+0x6e0/0xd90
[ 249.104994][ T4965] kobject_init_and_add+0x128/0x190
[ 249.110225][ T4965] ? lockdep_softirqs_off+0x430/0x430
[ 249.115642][ T4965] ? kobject_add+0x230/0x230
[ 249.120262][ T4965] ? __init_swait_queue_head+0xa5/0x150
[ 249.125837][ T4965] gfs2_sys_fs_add+0x24f/0x4b0
[ 249.130630][ T4965] ? gfs2_recover_set+0x240/0x240
[ 249.135685][ T4965] ? snprintf+0xe5/0x140
[ 249.138674][ T4966] loop3: detected capacity change from 0 to 32768
[ 249.140177][ T4965] ? __free_pages+0x95/0x1a0
[ 249.151190][ T4965] ? vscnprintf+0x80/0x80
[ 249.155558][ T4965] gfs2_fill_super+0x120f/0x1f00
[ 249.160641][ T4965] ? gfs2_reconfigure+0xd30/0xd30
[ 249.165712][ T4965] ? sb_set_blocksize+0xa5/0xe0
[ 249.170686][ T4965] get_tree_bdev+0x3f1/0x610
[ 249.175310][ T4965] ? gfs2_reconfigure+0xd30/0xd30
[ 249.180455][ T4965] gfs2_get_tree+0x4d/0x1e0
[ 249.184983][ T4965] vfs_get_tree+0x88/0x270
[ 249.189436][ T4965] do_new_mount+0x24a/0xa40
[ 249.193982][ T4965] __se_sys_mount+0x2e3/0x3d0
[ 249.198692][ T4965] ? __x64_sys_mount+0xc0/0xc0
[ 249.203577][ T4965] ? lockdep_hardirqs_on+0x94/0x140
[ 249.208898][ T4965] ? __x64_sys_mount+0x1c/0xc0
[ 249.213688][ T4965] do_syscall_64+0x4c/0xa0
[ 249.218133][ T4965] ? clear_bhb_loop+0x30/0x80
[ 249.222932][ T4965] ? clear_bhb_loop+0x30/0x80
[ 249.227637][ T4965] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 249.233557][ T4965] RIP: 0033:0x7f269053aa8a
[ 249.238016][ T4965] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 249.257921][ T4965] RSP: 002b:00007ffcd912c638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.266452][ T4965] RAX: ffffffffffffffda RBX: 00007ffcd912c6c0 RCX: 00007f269053aa8a
[ 249.274456][ T4965] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffcd912c680
[ 249.282539][ T4965] RBP: 00002000000124c0 R08: 00007ffcd912c6c0 R09: 0000000000000000
[ 249.290702][ T4965] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 249.298667][ T4965] R13: 00007ffcd912c680 R14: 0000000000012616 R15: 0000200000000140
[ 249.306673][ T4965]
[ 249.312107][ T4965] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.325553][ T4965] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.380465][ T4963] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.392424][ T4963] CPU: 0 PID: 4963 Comm: syz.1.475 Not tainted syzkaller #0
[ 249.399758][ T4963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 249.409846][ T4963] Call Trace:
[ 249.413174][ T4963]
[ 249.416156][ T4963] dump_stack_lvl+0x188/0x250
[ 249.420868][ T4963] ? show_regs_print_info+0x20/0x20
[ 249.426089][ T4963] ? load_image+0x400/0x400
[ 249.430735][ T4963] sysfs_create_dir_ns+0x26a/0x290
[ 249.435880][ T4963] ? sysfs_warn_dup+0xa0/0xa0
[ 249.440583][ T4963] ? do_raw_spin_unlock+0x11d/0x230
[ 249.446117][ T4963] kobject_add_internal+0x6e0/0xd90
[ 249.451391][ T4963] kobject_init_and_add+0x128/0x190
[ 249.456636][ T4963] ? lockdep_softirqs_off+0x430/0x430
[ 249.462051][ T4963] ? kobject_add+0x230/0x230
[ 249.466724][ T4963] ? __init_swait_queue_head+0xa5/0x150
[ 249.472410][ T4963] gfs2_sys_fs_add+0x24f/0x4b0
[ 249.477215][ T4963] ? gfs2_recover_set+0x240/0x240
[ 249.482272][ T4963] ? snprintf+0xe5/0x140
[ 249.486566][ T4963] ? __free_pages+0x95/0x1a0
[ 249.491400][ T4963] ? vscnprintf+0x80/0x80
[ 249.495763][ T4963] gfs2_fill_super+0x120f/0x1f00
[ 249.500828][ T4963] ? gfs2_reconfigure+0xd30/0xd30
[ 249.505888][ T4963] ? sb_set_blocksize+0xa5/0xe0
[ 249.510758][ T4963] get_tree_bdev+0x3f1/0x610
[ 249.515370][ T4963] ? gfs2_reconfigure+0xd30/0xd30
[ 249.520415][ T4963] gfs2_get_tree+0x4d/0x1e0
[ 249.524936][ T4963] vfs_get_tree+0x88/0x270
[ 249.529551][ T4963] do_new_mount+0x24a/0xa40
[ 249.534091][ T4963] __se_sys_mount+0x2e3/0x3d0
[ 249.538815][ T4963] ? __x64_sys_mount+0xc0/0xc0
[ 249.543635][ T4963] ? lockdep_hardirqs_on+0x94/0x140
[ 249.548869][ T4963] ? __x64_sys_mount+0x1c/0xc0
[ 249.553777][ T4963] do_syscall_64+0x4c/0xa0
[ 249.558322][ T4963] ? clear_bhb_loop+0x30/0x80
[ 249.563136][ T4963] ? clear_bhb_loop+0x30/0x80
[ 249.567848][ T4963] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 249.573778][ T4963] RIP: 0033:0x7f621d05da8a
[ 249.578225][ T4963] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 249.598060][ T4963] RSP: 002b:00007fff75434ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.606528][ T4963] RAX: ffffffffffffffda RBX: 00007fff75434f80 RCX: 00007f621d05da8a
[ 249.614535][ T4963] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fff75434f40
[ 249.622653][ T4963] RBP: 00002000000124c0 R08: 00007fff75434f80 R09: 0000000000000000
[ 249.630668][ T4963] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 249.638982][ T4963] R13: 00007fff75434f40 R14: 0000000000012616 R15: 0000200000000140
[ 249.647195][ T4963]
[ 249.651366][ T4963] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.664654][ T4963] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/04/05 06:56:18 executed programs: 472
[ 249.680066][ T4967] loop2: detected capacity change from 0 to 32768
[ 249.710880][ T4966] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.718385][ T4966] CPU: 1 PID: 4966 Comm: syz.3.478 Not tainted syzkaller #0
[ 249.725695][ T4966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 249.735770][ T4966] Call Trace:
[ 249.739100][ T4966]
[ 249.742048][ T4966] dump_stack_lvl+0x188/0x250
[ 249.746853][ T4966] ? show_regs_print_info+0x20/0x20
[ 249.752138][ T4966] ? load_image+0x400/0x400
[ 249.756686][ T4966] sysfs_create_dir_ns+0x26a/0x290
[ 249.761826][ T4966] ? sysfs_warn_dup+0xa0/0xa0
[ 249.766725][ T4966] ? do_raw_spin_unlock+0x11d/0x230
[ 249.771963][ T4966] kobject_add_internal+0x6e0/0xd90
[ 249.777297][ T4966] kobject_init_and_add+0x128/0x190
[ 249.782527][ T4966] ? lockdep_softirqs_off+0x430/0x430
[ 249.788024][ T4966] ? kobject_add+0x230/0x230
[ 249.792651][ T4966] ? __init_swait_queue_head+0xa5/0x150
[ 249.798261][ T4966] gfs2_sys_fs_add+0x24f/0x4b0
[ 249.803057][ T4966] ? gfs2_recover_set+0x240/0x240
[ 249.808123][ T4966] ? snprintf+0xe5/0x140
[ 249.812394][ T4966] ? __free_pages+0x95/0x1a0
[ 249.817115][ T4966] ? vscnprintf+0x80/0x80
[ 249.821481][ T4966] gfs2_fill_super+0x120f/0x1f00
[ 249.826563][ T4966] ? gfs2_reconfigure+0xd30/0xd30
[ 249.831637][ T4966] ? sb_set_blocksize+0xa5/0xe0
[ 249.836701][ T4966] get_tree_bdev+0x3f1/0x610
[ 249.841364][ T4966] ? gfs2_reconfigure+0xd30/0xd30
[ 249.846437][ T4966] gfs2_get_tree+0x4d/0x1e0
[ 249.850977][ T4966] vfs_get_tree+0x88/0x270
[ 249.855420][ T4966] do_new_mount+0x24a/0xa40
[ 249.859954][ T4966] __se_sys_mount+0x2e3/0x3d0
[ 249.864661][ T4966] ? __x64_sys_mount+0xc0/0xc0
[ 249.869457][ T4966] ? lockdep_hardirqs_on+0x94/0x140
[ 249.874780][ T4966] ? __x64_sys_mount+0x1c/0xc0
[ 249.879569][ T4966] do_syscall_64+0x4c/0xa0
[ 249.884007][ T4966] ? clear_bhb_loop+0x30/0x80
[ 249.888708][ T4966] ? clear_bhb_loop+0x30/0x80
[ 249.893408][ T4966] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 249.899323][ T4966] RIP: 0033:0x7fe96f9d7a8a
[ 249.903794][ T4966] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 249.923431][ T4966] RSP: 002b:00007ffe741ea638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.931883][ T4966] RAX: ffffffffffffffda RBX: 00007ffe741ea6c0 RCX: 00007fe96f9d7a8a
[ 249.940064][ T4966] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffe741ea680
[ 249.948247][ T4966] RBP: 00002000000124c0 R08: 00007ffe741ea6c0 R09: 0000000000000000
[ 249.956274][ T4966] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 249.964277][ T4966] R13: 00007ffe741ea680 R14: 0000000000012616 R15: 0000200000000140
[ 249.973039][ T4966]
[ 249.978528][ T4966] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.991897][ T4966] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.078148][ T4968] loop5: detected capacity change from 0 to 32768
[ 250.117543][ T4967] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.125225][ T4967] CPU: 1 PID: 4967 Comm: syz.2.479 Not tainted syzkaller #0
[ 250.132545][ T4967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 250.142720][ T4967] Call Trace:
[ 250.146024][ T4967]
[ 250.149155][ T4967] dump_stack_lvl+0x188/0x250
[ 250.153858][ T4967] ? show_regs_print_info+0x20/0x20
[ 250.159296][ T4967] ? load_image+0x400/0x400
[ 250.163852][ T4967] sysfs_create_dir_ns+0x26a/0x290
[ 250.168997][ T4967] ? sysfs_warn_dup+0xa0/0xa0
[ 250.173719][ T4967] ? do_raw_spin_unlock+0x11d/0x230
[ 250.179573][ T4967] kobject_add_internal+0x6e0/0xd90
[ 250.184897][ T4967] kobject_init_and_add+0x128/0x190
[ 250.190271][ T4967] ? lockdep_softirqs_off+0x430/0x430
[ 250.195692][ T4967] ? kobject_add+0x230/0x230
[ 250.200401][ T4967] ? __init_swait_queue_head+0xa5/0x150
[ 250.206080][ T4967] gfs2_sys_fs_add+0x24f/0x4b0
[ 250.210963][ T4967] ? gfs2_recover_set+0x240/0x240
[ 250.216017][ T4967] ? snprintf+0xe5/0x140
[ 250.220408][ T4967] ? __free_pages+0x95/0x1a0
[ 250.225029][ T4967] ? vscnprintf+0x80/0x80
[ 250.229401][ T4967] gfs2_fill_super+0x120f/0x1f00
[ 250.234492][ T4967] ? gfs2_reconfigure+0xd30/0xd30
[ 250.239556][ T4967] ? sb_set_blocksize+0xa5/0xe0
[ 250.244440][ T4967] get_tree_bdev+0x3f1/0x610
[ 250.249070][ T4967] ? gfs2_reconfigure+0xd30/0xd30
[ 250.254129][ T4967] gfs2_get_tree+0x4d/0x1e0
[ 250.258842][ T4967] vfs_get_tree+0x88/0x270
[ 250.263630][ T4967] do_new_mount+0x24a/0xa40
[ 250.268186][ T4967] __se_sys_mount+0x2e3/0x3d0
[ 250.272983][ T4967] ? __x64_sys_mount+0xc0/0xc0
[ 250.277790][ T4967] ? lockdep_hardirqs_on+0x94/0x140
[ 250.283035][ T4967] ? __x64_sys_mount+0x1c/0xc0
[ 250.287867][ T4967] do_syscall_64+0x4c/0xa0
[ 250.292533][ T4967] ? clear_bhb_loop+0x30/0x80
[ 250.297448][ T4967] ? clear_bhb_loop+0x30/0x80
[ 250.302168][ T4967] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.308198][ T4967] RIP: 0033:0x7ff11ced5a8a
[ 250.312647][ T4967] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 250.332390][ T4967] RSP: 002b:00007ffc21711868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.340974][ T4967] RAX: ffffffffffffffda RBX: 00007ffc217118f0 RCX: 00007ff11ced5a8a
[ 250.348982][ T4967] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffc217118b0
[ 250.357004][ T4967] RBP: 00002000000124c0 R08: 00007ffc217118f0 R09: 0000000000000000
[ 250.365212][ T4967] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 250.373215][ T4967] R13: 00007ffc217118b0 R14: 0000000000012616 R15: 0000200000000140
[ 250.381265][ T4967]
[ 250.384424][ T4967] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.397587][ T4967] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.449218][ T4969] loop0: detected capacity change from 0 to 32768
[ 250.468044][ T4968] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.475847][ T4968] CPU: 1 PID: 4968 Comm: syz.5.480 Not tainted syzkaller #0
[ 250.483177][ T4968] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 250.493398][ T4968] Call Trace:
[ 250.496716][ T4968]
[ 250.499682][ T4968] dump_stack_lvl+0x188/0x250
[ 250.504398][ T4968] ? show_regs_print_info+0x20/0x20
[ 250.509644][ T4968] ? load_image+0x400/0x400
[ 250.514195][ T4968] sysfs_create_dir_ns+0x26a/0x290
[ 250.519428][ T4968] ? sysfs_warn_dup+0xa0/0xa0
[ 250.524192][ T4968] ? do_raw_spin_unlock+0x11d/0x230
[ 250.529430][ T4968] kobject_add_internal+0x6e0/0xd90
[ 250.534817][ T4968] kobject_init_and_add+0x128/0x190
[ 250.540038][ T4968] ? lockdep_softirqs_off+0x430/0x430
[ 250.545532][ T4968] ? kobject_add+0x230/0x230
[ 250.550243][ T4968] ? __init_swait_queue_head+0xa5/0x150
[ 250.555817][ T4968] gfs2_sys_fs_add+0x24f/0x4b0
[ 250.560677][ T4968] ? gfs2_recover_set+0x240/0x240
[ 250.565812][ T4968] ? snprintf+0xe5/0x140
[ 250.570169][ T4968] ? __free_pages+0x95/0x1a0
[ 250.574887][ T4968] ? vscnprintf+0x80/0x80
[ 250.579396][ T4968] gfs2_fill_super+0x120f/0x1f00
[ 250.584365][ T4968] ? gfs2_reconfigure+0xd30/0xd30
[ 250.589428][ T4968] ? sb_set_blocksize+0xa5/0xe0
[ 250.594330][ T4968] get_tree_bdev+0x3f1/0x610
[ 250.599052][ T4968] ? gfs2_reconfigure+0xd30/0xd30
[ 250.604087][ T4968] gfs2_get_tree+0x4d/0x1e0
[ 250.608610][ T4968] vfs_get_tree+0x88/0x270
[ 250.613168][ T4968] do_new_mount+0x24a/0xa40
[ 250.617680][ T4968] __se_sys_mount+0x2e3/0x3d0
[ 250.622359][ T4968] ? __x64_sys_mount+0xc0/0xc0
[ 250.627223][ T4968] ? lockdep_hardirqs_on+0x94/0x140
[ 250.632547][ T4968] ? __x64_sys_mount+0x1c/0xc0
[ 250.637336][ T4968] do_syscall_64+0x4c/0xa0
[ 250.641759][ T4968] ? clear_bhb_loop+0x30/0x80
[ 250.646445][ T4968] ? clear_bhb_loop+0x30/0x80
[ 250.651156][ T4968] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.657328][ T4968] RIP: 0033:0x7f0531c31a8a
[ 250.661844][ T4968] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 250.681543][ T4968] RSP: 002b:00007ffef59bb608 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.690086][ T4968] RAX: ffffffffffffffda RBX: 00007ffef59bb690 RCX: 00007f0531c31a8a
[ 250.698258][ T4968] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffef59bb650
[ 250.706336][ T4968] RBP: 00002000000124c0 R08: 00007ffef59bb690 R09: 0000000000000000
[ 250.714426][ T4968] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 250.722797][ T4968] R13: 00007ffef59bb650 R14: 0000000000012616 R15: 0000200000000140
[ 250.730818][ T4968]
[ 250.736587][ T4968] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.751062][ T4968] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.817441][ T4969] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.825362][ T4969] CPU: 0 PID: 4969 Comm: syz.0.481 Not tainted syzkaller #0
[ 250.832682][ T4969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 250.842920][ T4969] Call Trace:
[ 250.846235][ T4969]
[ 250.849231][ T4969] dump_stack_lvl+0x188/0x250
[ 250.853955][ T4969] ? show_regs_print_info+0x20/0x20
[ 250.859201][ T4969] ? load_image+0x400/0x400
[ 250.863738][ T4969] sysfs_create_dir_ns+0x26a/0x290
[ 250.868881][ T4969] ? sysfs_warn_dup+0xa0/0xa0
[ 250.873688][ T4969] ? do_raw_spin_unlock+0x11d/0x230
[ 250.879270][ T4969] kobject_add_internal+0x6e0/0xd90
[ 250.884634][ T4969] kobject_init_and_add+0x128/0x190
[ 250.891803][ T4969] ? lockdep_softirqs_off+0x430/0x430
[ 250.897308][ T4969] ? kobject_add+0x230/0x230
[ 250.902038][ T4969] ? __init_swait_queue_head+0xa5/0x150
[ 250.907831][ T4969] gfs2_sys_fs_add+0x24f/0x4b0
[ 250.912638][ T4969] ? gfs2_recover_set+0x240/0x240
[ 250.917808][ T4969] ? snprintf+0xe5/0x140
[ 250.922372][ T4969] ? __free_pages+0x95/0x1a0
[ 250.927013][ T4969] ? vscnprintf+0x80/0x80
[ 250.931558][ T4969] gfs2_fill_super+0x120f/0x1f00
[ 250.936563][ T4969] ? gfs2_reconfigure+0xd30/0xd30
[ 250.941640][ T4969] ? sb_set_blocksize+0xa5/0xe0
[ 250.946662][ T4969] get_tree_bdev+0x3f1/0x610
[ 250.951322][ T4969] ? gfs2_reconfigure+0xd30/0xd30
[ 250.956463][ T4969] gfs2_get_tree+0x4d/0x1e0
[ 250.960995][ T4969] vfs_get_tree+0x88/0x270
[ 250.965439][ T4969] do_new_mount+0x24a/0xa40
[ 250.970021][ T4969] __se_sys_mount+0x2e3/0x3d0
[ 250.974821][ T4969] ? __x64_sys_mount+0xc0/0xc0
[ 250.979615][ T4969] ? lockdep_hardirqs_on+0x94/0x140
[ 250.984860][ T4969] ? __x64_sys_mount+0x1c/0xc0
[ 250.989663][ T4969] do_syscall_64+0x4c/0xa0
[ 250.994413][ T4969] ? clear_bhb_loop+0x30/0x80
[ 250.999206][ T4969] ? clear_bhb_loop+0x30/0x80
[ 251.003999][ T4969] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 251.009934][ T4969] RIP: 0033:0x7f269053aa8a
[ 251.014389][ T4969] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 251.034115][ T4969] RSP: 002b:00007ffcd912c638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.042722][ T4969] RAX: ffffffffffffffda RBX: 00007ffcd912c6c0 RCX: 00007f269053aa8a
[ 251.050738][ T4969] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffcd912c680
[ 251.058842][ T4969] RBP: 00002000000124c0 R08: 00007ffcd912c6c0 R09: 0000000000000000
[ 251.066856][ T4969] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 251.075036][ T4969] R13: 00007ffcd912c680 R14: 0000000000012616 R15: 0000200000000140
[ 251.083079][ T4969]
[ 251.087555][ T4969] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.101238][ T4969] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.130880][ T4970] loop1: detected capacity change from 0 to 32768
[ 251.212395][ T4970] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.221071][ T4970] CPU: 1 PID: 4970 Comm: syz.1.482 Not tainted syzkaller #0
[ 251.228444][ T4970] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 251.238548][ T4970] Call Trace:
[ 251.241856][ T4970]
[ 251.245190][ T4970] dump_stack_lvl+0x188/0x250
[ 251.250090][ T4970] ? show_regs_print_info+0x20/0x20
[ 251.255490][ T4970] ? load_image+0x400/0x400
[ 251.260057][ T4970] sysfs_create_dir_ns+0x26a/0x290
[ 251.265367][ T4970] ? sysfs_warn_dup+0xa0/0xa0
[ 251.270176][ T4970] ? do_raw_spin_unlock+0x11d/0x230
[ 251.275737][ T4970] kobject_add_internal+0x6e0/0xd90
[ 251.281070][ T4970] kobject_init_and_add+0x128/0x190
[ 251.286478][ T4970] ? lockdep_softirqs_off+0x430/0x430
[ 251.291898][ T4970] ? kobject_add+0x230/0x230
[ 251.296686][ T4970] ? __init_swait_queue_head+0xa5/0x150
[ 251.302279][ T4970] gfs2_sys_fs_add+0x24f/0x4b0
[ 251.307083][ T4970] ? gfs2_recover_set+0x240/0x240
[ 251.312226][ T4970] ? snprintf+0xe5/0x140
[ 251.316521][ T4970] ? __free_pages+0x95/0x1a0
[ 251.321330][ T4970] ? vscnprintf+0x80/0x80
[ 251.325933][ T4970] gfs2_fill_super+0x120f/0x1f00
[ 251.330921][ T4970] ? gfs2_reconfigure+0xd30/0xd30
[ 251.336087][ T4970] ? sb_set_blocksize+0xa5/0xe0
[ 251.340965][ T4970] get_tree_bdev+0x3f1/0x610
[ 251.345763][ T4970] ? gfs2_reconfigure+0xd30/0xd30
[ 251.350903][ T4970] gfs2_get_tree+0x4d/0x1e0
[ 251.355559][ T4970] vfs_get_tree+0x88/0x270
[ 251.360092][ T4970] do_new_mount+0x24a/0xa40
[ 251.364631][ T4970] __se_sys_mount+0x2e3/0x3d0
[ 251.369350][ T4970] ? __x64_sys_mount+0xc0/0xc0
[ 251.374232][ T4970] ? lockdep_hardirqs_on+0x94/0x140
[ 251.379454][ T4970] ? __x64_sys_mount+0x1c/0xc0
[ 251.384338][ T4970] do_syscall_64+0x4c/0xa0
[ 251.388903][ T4970] ? clear_bhb_loop+0x30/0x80
[ 251.393604][ T4970] ? clear_bhb_loop+0x30/0x80
[ 251.398305][ T4970] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 251.404306][ T4970] RIP: 0033:0x7f621d05da8a
[ 251.408741][ T4970] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 251.428470][ T4970] RSP: 002b:00007fff75434ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.436931][ T4970] RAX: ffffffffffffffda RBX: 00007fff75434f80 RCX: 00007f621d05da8a
[ 251.445030][ T4970] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fff75434f40
[ 251.453052][ T4970] RBP: 00002000000124c0 R08: 00007fff75434f80 R09: 0000000000000000
[ 251.461063][ T4970] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 251.469162][ T4970] R13: 00007fff75434f40 R14: 0000000000012616 R15: 0000200000000140
[ 251.477278][ T4970]
[ 251.483071][ T4970] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.496312][ T4970] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.580579][ T4971] loop2: detected capacity change from 0 to 32768
[ 251.764473][ T4971] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.772175][ T4971] CPU: 0 PID: 4971 Comm: syz.2.484 Not tainted syzkaller #0
[ 251.779676][ T4971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 251.790199][ T4971] Call Trace:
[ 251.793511][ T4971]
[ 251.796558][ T4971] dump_stack_lvl+0x188/0x250
[ 251.801276][ T4971] ? show_regs_print_info+0x20/0x20
[ 251.807013][ T4971] ? load_image+0x400/0x400
[ 251.811671][ T4971] sysfs_create_dir_ns+0x26a/0x290
[ 251.816805][ T4971] ? sysfs_warn_dup+0xa0/0xa0
[ 251.821519][ T4971] ? do_raw_spin_unlock+0x11d/0x230
[ 251.826840][ T4971] kobject_add_internal+0x6e0/0xd90
[ 251.832198][ T4971] kobject_init_and_add+0x128/0x190
[ 251.837658][ T4971] ? lockdep_softirqs_off+0x430/0x430
[ 251.843161][ T4971] ? kobject_add+0x230/0x230
[ 251.847896][ T4971] ? __init_swait_queue_head+0xa5/0x150
[ 251.853479][ T4971] gfs2_sys_fs_add+0x24f/0x4b0
[ 251.858278][ T4971] ? gfs2_recover_set+0x240/0x240
[ 251.863339][ T4971] ? snprintf+0xe5/0x140
[ 251.867682][ T4971] ? __free_pages+0x95/0x1a0
[ 251.872527][ T4971] ? vscnprintf+0x80/0x80
[ 251.876983][ T4971] gfs2_fill_super+0x120f/0x1f00
[ 251.882076][ T4971] ? gfs2_reconfigure+0xd30/0xd30
[ 251.887248][ T4971] ? sb_set_blocksize+0xa5/0xe0
[ 251.892824][ T4971] get_tree_bdev+0x3f1/0x610
[ 251.897530][ T4971] ? gfs2_reconfigure+0xd30/0xd30
[ 251.902699][ T4971] gfs2_get_tree+0x4d/0x1e0
[ 251.907357][ T4971] vfs_get_tree+0x88/0x270
[ 251.911803][ T4971] do_new_mount+0x24a/0xa40
[ 251.916344][ T4971] __se_sys_mount+0x2e3/0x3d0
[ 251.921236][ T4971] ? __x64_sys_mount+0xc0/0xc0
[ 251.926146][ T4971] ? lockdep_hardirqs_on+0x94/0x140
[ 251.931454][ T4971] ? __x64_sys_mount+0x1c/0xc0
[ 251.936244][ T4971] do_syscall_64+0x4c/0xa0
[ 251.940681][ T4971] ? clear_bhb_loop+0x30/0x80
[ 251.945409][ T4971] ? clear_bhb_loop+0x30/0x80
[ 251.950100][ T4971] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 251.956014][ T4971] RIP: 0033:0x7ff11ced5a8a
[ 251.960469][ T4971] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 251.980194][ T4971] RSP: 002b:00007ffc21711868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.988653][ T4971] RAX: ffffffffffffffda RBX: 00007ffc217118f0 RCX: 00007ff11ced5a8a
[ 251.996922][ T4971] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffc217118b0
[ 252.004935][ T4971] RBP: 00002000000124c0 R08: 00007ffc217118f0 R09: 0000000000000000
[ 252.012944][ T4971] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.020952][ T4971] R13: 00007ffc217118b0 R14: 0000000000012616 R15: 0000200000000140
[ 252.029156][ T4971]
[ 252.033740][ T4971] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.047142][ T4971] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.223246][ T4972] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.231009][ T4972] CPU: 1 PID: 4972 Comm: syz.3.483 Not tainted syzkaller #0
[ 252.238334][ T4972] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 252.248418][ T4972] Call Trace:
[ 252.251717][ T4972]
[ 252.254880][ T4972] dump_stack_lvl+0x188/0x250
[ 252.259580][ T4972] ? show_regs_print_info+0x20/0x20
[ 252.264801][ T4972] ? load_image+0x400/0x400
[ 252.269544][ T4972] sysfs_create_dir_ns+0x26a/0x290
[ 252.274738][ T4972] ? sysfs_warn_dup+0xa0/0xa0
[ 252.279680][ T4972] ? do_raw_spin_unlock+0x11d/0x230
[ 252.284914][ T4972] kobject_add_internal+0x6e0/0xd90
[ 252.290153][ T4972] kobject_init_and_add+0x128/0x190
[ 252.295383][ T4972] ? lockdep_softirqs_off+0x430/0x430
[ 252.300885][ T4972] ? kobject_add+0x230/0x230
[ 252.305511][ T4972] ? __init_swait_queue_head+0xa5/0x150
[ 252.311151][ T4972] gfs2_sys_fs_add+0x24f/0x4b0
[ 252.316054][ T4972] ? gfs2_recover_set+0x240/0x240
[ 252.321129][ T4972] ? snprintf+0xe5/0x140
[ 252.325414][ T4972] ? __free_pages+0x95/0x1a0
[ 252.330141][ T4972] ? vscnprintf+0x80/0x80
[ 252.334521][ T4972] gfs2_fill_super+0x120f/0x1f00
[ 252.339509][ T4972] ? gfs2_reconfigure+0xd30/0xd30
[ 252.344674][ T4972] ? sb_set_blocksize+0xa5/0xe0
[ 252.349558][ T4972] get_tree_bdev+0x3f1/0x610
[ 252.354216][ T4972] ? gfs2_reconfigure+0xd30/0xd30
[ 252.359362][ T4972] gfs2_get_tree+0x4d/0x1e0
[ 252.363894][ T4972] vfs_get_tree+0x88/0x270
[ 252.368348][ T4972] do_new_mount+0x24a/0xa40
[ 252.372897][ T4972] __se_sys_mount+0x2e3/0x3d0
[ 252.377615][ T4972] ? __x64_sys_mount+0xc0/0xc0
[ 252.382495][ T4972] ? lockdep_hardirqs_on+0x94/0x140
[ 252.387812][ T4972] ? __x64_sys_mount+0x1c/0xc0
[ 252.392713][ T4972] do_syscall_64+0x4c/0xa0
[ 252.397154][ T4972] ? clear_bhb_loop+0x30/0x80
[ 252.401951][ T4972] ? clear_bhb_loop+0x30/0x80
[ 252.406828][ T4972] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.412945][ T4972] RIP: 0033:0x7fe96f9d7a8a
[ 252.417388][ T4972] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 252.437590][ T4972] RSP: 002b:00007ffe741ea638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.446651][ T4972] RAX: ffffffffffffffda RBX: 00007ffe741ea6c0 RCX: 00007fe96f9d7a8a
[ 252.454976][ T4972] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffe741ea680
[ 252.463170][ T4972] RBP: 00002000000124c0 R08: 00007ffe741ea6c0 R09: 0000000000000000
[ 252.471271][ T4972] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.479512][ T4972] R13: 00007ffe741ea680 R14: 0000000000012616 R15: 0000200000000140
[ 252.487884][ T4972]
[ 252.492378][ T4972] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.506919][ T4972] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.536161][ T4973] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.543690][ T4973] CPU: 1 PID: 4973 Comm: syz.5.485 Not tainted syzkaller #0
[ 252.548412][ T4974] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.551007][ T4973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 252.568648][ T4973] Call Trace:
[ 252.571934][ T4973]
[ 252.574871][ T4973] dump_stack_lvl+0x188/0x250
[ 252.579558][ T4973] ? show_regs_print_info+0x20/0x20
[ 252.584787][ T4973] ? load_image+0x400/0x400
[ 252.589306][ T4973] sysfs_create_dir_ns+0x26a/0x290
[ 252.594425][ T4973] ? sysfs_warn_dup+0xa0/0xa0
[ 252.599220][ T4973] ? do_raw_spin_unlock+0x11d/0x230
[ 252.604525][ T4973] kobject_add_internal+0x6e0/0xd90
[ 252.609739][ T4973] kobject_init_and_add+0x128/0x190
[ 252.615053][ T4973] ? lockdep_softirqs_off+0x430/0x430
[ 252.620564][ T4973] ? kobject_add+0x230/0x230
[ 252.625191][ T4973] ? __init_swait_queue_head+0xa5/0x150
[ 252.630768][ T4973] gfs2_sys_fs_add+0x24f/0x4b0
[ 252.635551][ T4973] ? gfs2_recover_set+0x240/0x240
[ 252.640689][ T4973] ? snprintf+0xe5/0x140
[ 252.645131][ T4973] ? __free_pages+0x95/0x1a0
[ 252.649732][ T4973] ? vscnprintf+0x80/0x80
[ 252.654078][ T4973] gfs2_fill_super+0x120f/0x1f00
[ 252.659145][ T4973] ? gfs2_reconfigure+0xd30/0xd30
[ 252.664194][ T4973] ? sb_set_blocksize+0xa5/0xe0
[ 252.669678][ T4973] get_tree_bdev+0x3f1/0x610
[ 252.674462][ T4973] ? gfs2_reconfigure+0xd30/0xd30
[ 252.679497][ T4973] gfs2_get_tree+0x4d/0x1e0
[ 252.684150][ T4973] vfs_get_tree+0x88/0x270
[ 252.688665][ T4973] do_new_mount+0x24a/0xa40
[ 252.693276][ T4973] __se_sys_mount+0x2e3/0x3d0
[ 252.697965][ T4973] ? __x64_sys_mount+0xc0/0xc0
[ 252.702740][ T4973] ? lockdep_hardirqs_on+0x94/0x140
[ 252.708157][ T4973] ? __x64_sys_mount+0x1c/0xc0
[ 252.712930][ T4973] do_syscall_64+0x4c/0xa0
[ 252.717355][ T4973] ? clear_bhb_loop+0x30/0x80
[ 252.722041][ T4973] ? clear_bhb_loop+0x30/0x80
[ 252.726734][ T4973] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.732635][ T4973] RIP: 0033:0x7f0531c31a8a
[ 252.738019][ T4973] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 252.757985][ T4973] RSP: 002b:00007ffef59bb608 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.766413][ T4973] RAX: ffffffffffffffda RBX: 00007ffef59bb690 RCX: 00007f0531c31a8a
[ 252.774479][ T4973] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffef59bb650
[ 252.782454][ T4973] RBP: 00002000000124c0 R08: 00007ffef59bb690 R09: 0000000000000000
[ 252.790443][ T4973] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.798468][ T4973] R13: 00007ffef59bb650 R14: 0000000000012616 R15: 0000200000000140
[ 252.806594][ T4973]
[ 252.810042][ T4974] CPU: 0 PID: 4974 Comm: syz.0.486 Not tainted syzkaller #0
[ 252.811024][ T4973] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.817365][ T4974] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 252.817380][ T4974] Call Trace:
[ 252.817387][ T4974]
[ 252.817397][ T4974] dump_stack_lvl+0x188/0x250
[ 252.817426][ T4974] ? show_regs_print_info+0x20/0x20
[ 252.817451][ T4974] ? load_image+0x400/0x400
[ 252.817483][ T4974] sysfs_create_dir_ns+0x26a/0x290
[ 252.817515][ T4974] ? sysfs_warn_dup+0xa0/0xa0
[ 252.817536][ T4974] ? do_raw_spin_unlock+0x11d/0x230
[ 252.817562][ T4974] kobject_add_internal+0x6e0/0xd90
[ 252.817590][ T4974] kobject_init_and_add+0x128/0x190
[ 252.817612][ T4974] ? lockdep_softirqs_off+0x430/0x430
[ 252.817642][ T4974] ? kobject_add+0x230/0x230
[ 252.817668][ T4974] ? __init_swait_queue_head+0xa5/0x150
[ 252.817696][ T4974] gfs2_sys_fs_add+0x24f/0x4b0
[ 252.817720][ T4974] ? gfs2_recover_set+0x240/0x240
[ 252.817742][ T4974] ? snprintf+0xe5/0x140
[ 252.817762][ T4974] ? __free_pages+0x95/0x1a0
[ 252.817785][ T4974] ? vscnprintf+0x80/0x80
[ 252.817815][ T4974] gfs2_fill_super+0x120f/0x1f00
[ 252.817853][ T4974] ? gfs2_reconfigure+0xd30/0xd30
[ 252.817895][ T4974] ? sb_set_blocksize+0xa5/0xe0
[ 252.817918][ T4974] get_tree_bdev+0x3f1/0x610
[ 252.817943][ T4974] ? gfs2_reconfigure+0xd30/0xd30
[ 252.817967][ T4974] gfs2_get_tree+0x4d/0x1e0
[ 252.817993][ T4974] vfs_get_tree+0x88/0x270
[ 252.818017][ T4974] do_new_mount+0x24a/0xa40
[ 252.831141][ T4973] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.841177][ T4974] __se_sys_mount+0x2e3/0x3d0
[ 252.976725][ T4974] ? __x64_sys_mount+0xc0/0xc0
[ 252.981635][ T4974] ? lockdep_hardirqs_on+0x94/0x140
[ 252.986872][ T4974] ? __x64_sys_mount+0x1c/0xc0
[ 252.991783][ T4974] do_syscall_64+0x4c/0xa0
[ 252.996246][ T4974] ? clear_bhb_loop+0x30/0x80
[ 253.000967][ T4974] ? clear_bhb_loop+0x30/0x80
[ 253.005677][ T4974] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 253.011607][ T4974] RIP: 0033:0x7f269053aa8a
[ 253.016341][ T4974] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 253.036153][ T4974] RSP: 002b:00007ffcd912c638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.044868][ T4974] RAX: ffffffffffffffda RBX: 00007ffcd912c6c0 RCX: 00007f269053aa8a
[ 253.052875][ T4974] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffcd912c680
[ 253.060884][ T4974] RBP: 00002000000124c0 R08: 00007ffcd912c6c0 R09: 0000000000000000
[ 253.068928][ T4974] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 253.077110][ T4974] R13: 00007ffcd912c680 R14: 0000000000012616 R15: 0000200000000140
[ 253.085162][ T4974]
[ 253.089298][ T4974] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.102571][ T4974] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 253.599112][ T4976] set_capacity_and_notify: 3 callbacks suppressed
[ 253.599130][ T4976] loop1: detected capacity change from 0 to 32768
[ 253.964457][ T4977] loop2: detected capacity change from 0 to 32768
[ 253.992266][ T4976] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.001264][ T4976] CPU: 0 PID: 4976 Comm: syz.1.487 Not tainted syzkaller #0
[ 254.008593][ T4976] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 254.018857][ T4976] Call Trace:
[ 254.022262][ T4976]
[ 254.025328][ T4976] dump_stack_lvl+0x188/0x250
[ 254.030164][ T4976] ? show_regs_print_info+0x20/0x20
[ 254.035410][ T4976] ? load_image+0x400/0x400
[ 254.040079][ T4976] sysfs_create_dir_ns+0x26a/0x290
[ 254.045312][ T4976] ? sysfs_warn_dup+0xa0/0xa0
[ 254.050029][ T4976] ? do_raw_spin_unlock+0x11d/0x230
[ 254.055534][ T4976] kobject_add_internal+0x6e0/0xd90
[ 254.060887][ T4976] kobject_init_and_add+0x128/0x190
[ 254.066122][ T4976] ? lockdep_softirqs_off+0x430/0x430
[ 254.071535][ T4976] ? kobject_add+0x230/0x230
[ 254.076159][ T4976] ? __init_swait_queue_head+0xa5/0x150
[ 254.081931][ T4976] gfs2_sys_fs_add+0x24f/0x4b0
[ 254.086717][ T4976] ? gfs2_recover_set+0x240/0x240
[ 254.091853][ T4976] ? snprintf+0xe5/0x140
[ 254.096291][ T4976] ? __free_pages+0x95/0x1a0
[ 254.101164][ T4976] ? vscnprintf+0x80/0x80
[ 254.105541][ T4976] gfs2_fill_super+0x120f/0x1f00
[ 254.110707][ T4976] ? gfs2_reconfigure+0xd30/0xd30
[ 254.115792][ T4976] ? sb_set_blocksize+0xa5/0xe0
[ 254.120887][ T4976] get_tree_bdev+0x3f1/0x610
[ 254.125517][ T4976] ? gfs2_reconfigure+0xd30/0xd30
[ 254.130683][ T4976] gfs2_get_tree+0x4d/0x1e0
[ 254.135221][ T4976] vfs_get_tree+0x88/0x270
[ 254.139676][ T4976] do_new_mount+0x24a/0xa40
[ 254.144410][ T4976] __se_sys_mount+0x2e3/0x3d0
[ 254.149143][ T4976] ? __x64_sys_mount+0xc0/0xc0
[ 254.154126][ T4976] ? lockdep_hardirqs_on+0x94/0x140
[ 254.159389][ T4976] ? __x64_sys_mount+0x1c/0xc0
[ 254.164193][ T4976] do_syscall_64+0x4c/0xa0
[ 254.168767][ T4976] ? clear_bhb_loop+0x30/0x80
[ 254.173475][ T4976] ? clear_bhb_loop+0x30/0x80
[ 254.178191][ T4976] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 254.184126][ T4976] RIP: 0033:0x7f621d05da8a
[ 254.188575][ T4976] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 254.208401][ T4976] RSP: 002b:00007fff75434ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.216859][ T4976] RAX: ffffffffffffffda RBX: 00007fff75434f80 RCX: 00007f621d05da8a
[ 254.224869][ T4976] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fff75434f40
[ 254.232961][ T4976] RBP: 00002000000124c0 R08: 00007fff75434f80 R09: 0000000000000000
[ 254.241082][ T4976] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 254.249466][ T4976] R13: 00007fff75434f40 R14: 0000000000012616 R15: 0000200000000140
[ 254.254798][ T4979] loop3: detected capacity change from 0 to 32768
[ 254.257490][ T4976]
[ 254.266997][ T4976] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.280249][ T4976] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.634272][ T4981] loop5: detected capacity change from 0 to 32768
[ 254.638411][ T4980] loop0: detected capacity change from 0 to 32768
[ 254.655906][ T4977] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.658176][ T4979] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.663359][ T4977] CPU: 1 PID: 4977 Comm: syz.2.489 Not tainted syzkaller #0
[ 254.663381][ T4977] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 254.663394][ T4977] Call Trace:
[ 254.663402][ T4977]
[ 254.695312][ T4977] dump_stack_lvl+0x188/0x250
[ 254.700181][ T4977] ? show_regs_print_info+0x20/0x20
[ 254.705477][ T4977] ? load_image+0x400/0x400
[ 254.710006][ T4977] sysfs_create_dir_ns+0x26a/0x290
[ 254.715279][ T4977] ? sysfs_warn_dup+0xa0/0xa0
[ 254.719967][ T4977] ? do_raw_spin_unlock+0x11d/0x230
[ 254.725184][ T4977] kobject_add_internal+0x6e0/0xd90
[ 254.730412][ T4977] kobject_init_and_add+0x128/0x190
[ 254.735708][ T4977] ? lockdep_softirqs_off+0x430/0x430
[ 254.741198][ T4977] ? kobject_add+0x230/0x230
[ 254.746107][ T4977] ? __init_swait_queue_head+0xa5/0x150
[ 254.751854][ T4977] gfs2_sys_fs_add+0x24f/0x4b0
[ 254.756741][ T4977] ? gfs2_recover_set+0x240/0x240
[ 254.761772][ T4977] ? snprintf+0xe5/0x140
[ 254.766194][ T4977] ? __free_pages+0x95/0x1a0
[ 254.770798][ T4977] ? vscnprintf+0x80/0x80
[ 254.775178][ T4977] gfs2_fill_super+0x120f/0x1f00
[ 254.780136][ T4977] ? gfs2_reconfigure+0xd30/0xd30
[ 254.785312][ T4977] ? sb_set_blocksize+0xa5/0xe0
[ 254.790265][ T4977] get_tree_bdev+0x3f1/0x610
[ 254.794991][ T4977] ? gfs2_reconfigure+0xd30/0xd30
[ 254.800144][ T4977] gfs2_get_tree+0x4d/0x1e0
[ 254.804661][ T4977] vfs_get_tree+0x88/0x270
[ 254.809179][ T4977] do_new_mount+0x24a/0xa40
[ 254.813712][ T4977] __se_sys_mount+0x2e3/0x3d0
[ 254.818408][ T4977] ? __x64_sys_mount+0xc0/0xc0
[ 254.823281][ T4977] ? lockdep_hardirqs_on+0x94/0x140
[ 254.828495][ T4977] ? __x64_sys_mount+0x1c/0xc0
[ 254.833268][ T4977] do_syscall_64+0x4c/0xa0
[ 254.837687][ T4977] ? clear_bhb_loop+0x30/0x80
[ 254.842574][ T4977] ? clear_bhb_loop+0x30/0x80
[ 254.847271][ T4977] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 254.853522][ T4977] RIP: 0033:0x7ff11ced5a8a
[ 254.857951][ T4977] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 254.877663][ T4977] RSP: 002b:00007ffc21711868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.886394][ T4977] RAX: ffffffffffffffda RBX: 00007ffc217118f0 RCX: 00007ff11ced5a8a
[ 254.894377][ T4977] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffc217118b0
[ 254.902357][ T4977] RBP: 00002000000124c0 R08: 00007ffc217118f0 R09: 0000000000000000
[ 254.910345][ T4977] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 254.918716][ T4977] R13: 00007ffc217118b0 R14: 0000000000012616 R15: 0000200000000140
[ 254.926822][ T4977]
[ 254.929865][ T4979] CPU: 0 PID: 4979 Comm: syz.3.491 Not tainted syzkaller #0
[ 254.931094][ T4977] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.937173][ T4979] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 254.937188][ T4979] Call Trace:
[ 254.937197][ T4979]
[ 254.937206][ T4979] dump_stack_lvl+0x188/0x250
[ 254.950318][ T4977] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.960444][ T4979] ? show_regs_print_info+0x20/0x20
[ 254.960472][ T4979] ? load_image+0x400/0x400
[ 254.960505][ T4979] sysfs_create_dir_ns+0x26a/0x290
[ 254.960530][ T4979] ? sysfs_warn_dup+0xa0/0xa0
[ 254.960551][ T4979] ? do_raw_spin_unlock+0x11d/0x230
[ 254.960577][ T4979] kobject_add_internal+0x6e0/0xd90
[ 254.960607][ T4979] kobject_init_and_add+0x128/0x190
[ 254.960629][ T4979] ? lockdep_softirqs_off+0x430/0x430
[ 254.960658][ T4979] ? kobject_add+0x230/0x230
[ 254.960685][ T4979] ? __init_swait_queue_head+0xa5/0x150
[ 254.960714][ T4979] gfs2_sys_fs_add+0x24f/0x4b0
[ 254.960740][ T4979] ? gfs2_recover_set+0x240/0x240
[ 254.960762][ T4979] ? snprintf+0xe5/0x140
[ 254.960781][ T4979] ? __free_pages+0x95/0x1a0
[ 254.960807][ T4979] ? vscnprintf+0x80/0x80
[ 254.960840][ T4979] gfs2_fill_super+0x120f/0x1f00
[ 254.960880][ T4979] ? gfs2_reconfigure+0xd30/0xd30
[ 254.960924][ T4979] ? sb_set_blocksize+0xa5/0xe0
[ 254.960947][ T4979] get_tree_bdev+0x3f1/0x610
[ 254.960972][ T4979] ? gfs2_reconfigure+0xd30/0xd30
[ 254.960996][ T4979] gfs2_get_tree+0x4d/0x1e0
[ 254.961021][ T4979] vfs_get_tree+0x88/0x270
[ 254.961044][ T4979] do_new_mount+0x24a/0xa40
[ 254.961074][ T4979] __se_sys_mount+0x2e3/0x3d0
[ 254.961102][ T4979] ? __x64_sys_mount+0xc0/0xc0
[ 254.961128][ T4979] ? lockdep_hardirqs_on+0x94/0x140
[ 254.961150][ T4979] ? __x64_sys_mount+0x1c/0xc0
[ 254.961174][ T4979] do_syscall_64+0x4c/0xa0
[ 254.961193][ T4979] ? clear_bhb_loop+0x30/0x80
[ 254.961213][ T4979] ? clear_bhb_loop+0x30/0x80
[ 254.961235][ T4979] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 254.961256][ T4979] RIP: 0033:0x7fe96f9d7a8a
[ 254.961277][ T4979] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 254.961304][ T4979] RSP: 002b:00007ffe741ea638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.961330][ T4979] RAX: ffffffffffffffda RBX: 00007ffe741ea6c0 RCX: 00007fe96f9d7a8a
[ 254.961347][ T4979] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffe741ea680
[ 254.961362][ T4979] RBP: 00002000000124c0 R08: 00007ffe741ea6c0 R09: 0000000000000000
[ 254.961377][ T4979] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 254.961392][ T4979] R13: 00007ffe741ea680 R14: 0000000000012616 R15: 0000200000000140
[ 254.961424][ T4979]
[ 254.961808][ T4979] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.127745][ T4981] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.132364][ T4979] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.238402][ T4981] CPU: 1 PID: 4981 Comm: syz.5.493 Not tainted syzkaller #0
[ 255.245719][ T4981] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 255.256277][ T4981] Call Trace:
[ 255.259583][ T4981]
[ 255.262536][ T4981] dump_stack_lvl+0x188/0x250
[ 255.267331][ T4981] ? show_regs_print_info+0x20/0x20
[ 255.272563][ T4981] ? load_image+0x400/0x400
[ 255.277216][ T4981] sysfs_create_dir_ns+0x26a/0x290
[ 255.282448][ T4981] ? sysfs_warn_dup+0xa0/0xa0
[ 255.287267][ T4981] ? do_raw_spin_unlock+0x11d/0x230
[ 255.292685][ T4981] kobject_add_internal+0x6e0/0xd90
[ 255.298000][ T4981] kobject_init_and_add+0x128/0x190
[ 255.303411][ T4981] ? lockdep_softirqs_off+0x430/0x430
[ 255.308891][ T4981] ? kobject_add+0x230/0x230
[ 255.313503][ T4981] ? __init_swait_queue_head+0xa5/0x150
[ 255.319082][ T4981] gfs2_sys_fs_add+0x24f/0x4b0
[ 255.323967][ T4981] ? gfs2_recover_set+0x240/0x240
[ 255.329168][ T4981] ? snprintf+0xe5/0x140
[ 255.333541][ T4981] ? __free_pages+0x95/0x1a0
[ 255.338286][ T4981] ? vscnprintf+0x80/0x80
[ 255.342691][ T4981] gfs2_fill_super+0x120f/0x1f00
[ 255.347678][ T4981] ? gfs2_reconfigure+0xd30/0xd30
[ 255.352845][ T4981] ? sb_set_blocksize+0xa5/0xe0
[ 255.357736][ T4981] get_tree_bdev+0x3f1/0x610
[ 255.362366][ T4981] ? gfs2_reconfigure+0xd30/0xd30
[ 255.367429][ T4981] gfs2_get_tree+0x4d/0x1e0
[ 255.372026][ T4981] vfs_get_tree+0x88/0x270
[ 255.376492][ T4981] do_new_mount+0x24a/0xa40
[ 255.381146][ T4981] __se_sys_mount+0x2e3/0x3d0
[ 255.385990][ T4981] ? __x64_sys_mount+0xc0/0xc0
[ 255.390989][ T4981] ? lockdep_hardirqs_on+0x94/0x140
[ 255.396356][ T4981] ? __x64_sys_mount+0x1c/0xc0
[ 255.401154][ T4981] do_syscall_64+0x4c/0xa0
[ 255.405614][ T4981] ? clear_bhb_loop+0x30/0x80
[ 255.410338][ T4981] ? clear_bhb_loop+0x30/0x80
[ 255.415304][ T4981] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.421239][ T4981] RIP: 0033:0x7f0531c31a8a
2026/04/05 06:56:23 executed programs: 487
[ 255.425691][ T4981] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 255.445603][ T4981] RSP: 002b:00007ffef59bb608 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.454142][ T4981] RAX: ffffffffffffffda RBX: 00007ffef59bb690 RCX: 00007f0531c31a8a
[ 255.462148][ T4981] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffef59bb650
[ 255.465061][ T4982] loop1: detected capacity change from 0 to 32768
[ 255.470144][ T4981] RBP: 00002000000124c0 R08: 00007ffef59bb690 R09: 0000000000000000
[ 255.484545][ T4981] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 255.487711][ T4980] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.492631][ T4981] R13: 00007ffef59bb650 R14: 0000000000012616 R15: 0000200000000140
[ 255.508311][ T4981]
[ 255.511632][ T4980] CPU: 0 PID: 4980 Comm: syz.0.492 Not tainted syzkaller #0
[ 255.513341][ T4981] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.519298][ T4980] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 255.519317][ T4980] Call Trace:
[ 255.519328][ T4980]
[ 255.519338][ T4980] dump_stack_lvl+0x188/0x250
[ 255.533006][ T4981] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.543163][ T4980] ? show_regs_print_info+0x20/0x20
[ 255.543196][ T4980] ? load_image+0x400/0x400
[ 255.570554][ T4980] sysfs_create_dir_ns+0x26a/0x290
[ 255.575706][ T4980] ? sysfs_warn_dup+0xa0/0xa0
[ 255.580541][ T4980] ? do_raw_spin_unlock+0x11d/0x230
[ 255.585775][ T4980] kobject_add_internal+0x6e0/0xd90
[ 255.591014][ T4980] kobject_init_and_add+0x128/0x190
[ 255.596346][ T4980] ? lockdep_softirqs_off+0x430/0x430
[ 255.601951][ T4980] ? kobject_add+0x230/0x230
[ 255.606582][ T4980] ? __init_swait_queue_head+0xa5/0x150
[ 255.612264][ T4980] gfs2_sys_fs_add+0x24f/0x4b0
[ 255.617157][ T4980] ? gfs2_recover_set+0x240/0x240
[ 255.622443][ T4980] ? snprintf+0xe5/0x140
[ 255.626751][ T4980] ? __free_pages+0x95/0x1a0
[ 255.631558][ T4980] ? vscnprintf+0x80/0x80
[ 255.635938][ T4980] gfs2_fill_super+0x120f/0x1f00
[ 255.640926][ T4980] ? gfs2_reconfigure+0xd30/0xd30
[ 255.646004][ T4980] ? sb_set_blocksize+0xa5/0xe0
[ 255.650991][ T4980] get_tree_bdev+0x3f1/0x610
[ 255.655716][ T4980] ? gfs2_reconfigure+0xd30/0xd30
[ 255.660784][ T4980] gfs2_get_tree+0x4d/0x1e0
[ 255.665323][ T4980] vfs_get_tree+0x88/0x270
[ 255.669779][ T4980] do_new_mount+0x24a/0xa40
[ 255.674435][ T4980] __se_sys_mount+0x2e3/0x3d0
[ 255.679250][ T4980] ? __x64_sys_mount+0xc0/0xc0
[ 255.684165][ T4980] ? lockdep_hardirqs_on+0x94/0x140
[ 255.689785][ T4980] ? __x64_sys_mount+0x1c/0xc0
[ 255.694561][ T4980] do_syscall_64+0x4c/0xa0
[ 255.699012][ T4980] ? clear_bhb_loop+0x30/0x80
[ 255.703799][ T4980] ? clear_bhb_loop+0x30/0x80
[ 255.708493][ T4980] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.714591][ T4980] RIP: 0033:0x7f269053aa8a
[ 255.719190][ T4980] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 255.738965][ T4980] RSP: 002b:00007ffcd912c638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.747386][ T4980] RAX: ffffffffffffffda RBX: 00007ffcd912c6c0 RCX: 00007f269053aa8a
[ 255.755361][ T4980] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffcd912c680
[ 255.763355][ T4980] RBP: 00002000000124c0 R08: 00007ffcd912c6c0 R09: 0000000000000000
[ 255.771332][ T4980] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 255.779456][ T4980] R13: 00007ffcd912c680 R14: 0000000000012616 R15: 0000200000000140
[ 255.787561][ T4980]
[ 255.793859][ T4980] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.806683][ T1431] ieee802154 phy0 wpan0: encryption failed: -22
[ 255.808319][ T4980] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.814953][ T1431] ieee802154 phy1 wpan1: encryption failed: -22
[ 255.878270][ T4982] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.886348][ T4982] CPU: 0 PID: 4982 Comm: syz.1.494 Not tainted syzkaller #0
[ 255.894353][ T4982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 255.904446][ T4982] Call Trace:
[ 255.907752][ T4982]
[ 255.910715][ T4982] dump_stack_lvl+0x188/0x250
[ 255.915455][ T4982] ? show_regs_print_info+0x20/0x20
[ 255.920704][ T4982] ? load_image+0x400/0x400
[ 255.925360][ T4982] sysfs_create_dir_ns+0x26a/0x290
[ 255.930508][ T4982] ? sysfs_warn_dup+0xa0/0xa0
[ 255.935227][ T4982] ? do_raw_spin_unlock+0x11d/0x230
[ 255.940463][ T4982] kobject_add_internal+0x6e0/0xd90
[ 255.945694][ T4982] kobject_init_and_add+0x128/0x190
[ 255.950915][ T4982] ? lockdep_softirqs_off+0x430/0x430
[ 255.956499][ T4982] ? kobject_add+0x230/0x230
[ 255.961402][ T4982] ? __init_swait_queue_head+0xa5/0x150
[ 255.966979][ T4982] gfs2_sys_fs_add+0x24f/0x4b0
[ 255.971775][ T4982] ? gfs2_recover_set+0x240/0x240
[ 255.976820][ T4982] ? snprintf+0xe5/0x140
[ 255.981081][ T4982] ? __free_pages+0x95/0x1a0
[ 255.985828][ T4982] ? vscnprintf+0x80/0x80
[ 255.990296][ T4982] gfs2_fill_super+0x120f/0x1f00
[ 255.995297][ T4982] ? gfs2_reconfigure+0xd30/0xd30
[ 256.000376][ T4982] ? sb_set_blocksize+0xa5/0xe0
[ 256.005363][ T4982] get_tree_bdev+0x3f1/0x610
[ 256.009992][ T4982] ? gfs2_reconfigure+0xd30/0xd30
[ 256.015247][ T4982] gfs2_get_tree+0x4d/0x1e0
[ 256.019815][ T4982] vfs_get_tree+0x88/0x270
[ 256.024361][ T4982] do_new_mount+0x24a/0xa40
[ 256.028897][ T4982] __se_sys_mount+0x2e3/0x3d0
[ 256.033608][ T4982] ? __x64_sys_mount+0xc0/0xc0
[ 256.038930][ T4982] ? lockdep_hardirqs_on+0x94/0x140
[ 256.044163][ T4982] ? __x64_sys_mount+0x1c/0xc0
[ 256.048959][ T4982] do_syscall_64+0x4c/0xa0
[ 256.053412][ T4982] ? clear_bhb_loop+0x30/0x80
[ 256.058128][ T4982] ? clear_bhb_loop+0x30/0x80
[ 256.062831][ T4982] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 256.068757][ T4982] RIP: 0033:0x7f621d05da8a
[ 256.073376][ T4982] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 256.093018][ T4982] RSP: 002b:00007fff75434ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.101821][ T4982] RAX: ffffffffffffffda RBX: 00007fff75434f80 RCX: 00007f621d05da8a
[ 256.109931][ T4982] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fff75434f40
[ 256.117939][ T4982] RBP: 00002000000124c0 R08: 00007fff75434f80 R09: 0000000000000000
[ 256.126034][ T4982] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 256.134054][ T4982] R13: 00007fff75434f40 R14: 0000000000012616 R15: 0000200000000140
[ 256.142084][ T4982]
[ 256.146858][ T4982] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.160174][ T4982] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.332944][ T4983] loop2: detected capacity change from 0 to 32768
[ 256.690108][ T4984] loop3: detected capacity change from 0 to 32768
[ 256.695953][ T4985] loop5: detected capacity change from 0 to 32768
[ 256.717631][ T4983] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.726988][ T4983] CPU: 0 PID: 4983 Comm: syz.2.495 Not tainted syzkaller #0
[ 256.734441][ T4983] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 256.744753][ T4983] Call Trace:
[ 256.748067][ T4983]
[ 256.751021][ T4983] dump_stack_lvl+0x188/0x250
[ 256.755732][ T4983] ? show_regs_print_info+0x20/0x20
[ 256.761048][ T4983] ? load_image+0x400/0x400
[ 256.765603][ T4983] sysfs_create_dir_ns+0x26a/0x290
[ 256.770944][ T4983] ? sysfs_warn_dup+0xa0/0xa0
[ 256.775655][ T4983] ? do_raw_spin_unlock+0x11d/0x230
[ 256.780986][ T4983] kobject_add_internal+0x6e0/0xd90
[ 256.786236][ T4983] kobject_init_and_add+0x128/0x190
[ 256.791571][ T4983] ? lockdep_softirqs_off+0x430/0x430
[ 256.796988][ T4983] ? kobject_add+0x230/0x230
[ 256.801627][ T4983] ? __init_swait_queue_head+0xa5/0x150
[ 256.807310][ T4983] gfs2_sys_fs_add+0x24f/0x4b0
[ 256.812199][ T4983] ? gfs2_recover_set+0x240/0x240
[ 256.817368][ T4983] ? snprintf+0xe5/0x140
[ 256.821633][ T4983] ? __free_pages+0x95/0x1a0
[ 256.826262][ T4983] ? vscnprintf+0x80/0x80
[ 256.830740][ T4983] gfs2_fill_super+0x120f/0x1f00
[ 256.835837][ T4983] ? gfs2_reconfigure+0xd30/0xd30
[ 256.840928][ T4983] ? sb_set_blocksize+0xa5/0xe0
[ 256.845818][ T4983] get_tree_bdev+0x3f1/0x610
[ 256.850627][ T4983] ? gfs2_reconfigure+0xd30/0xd30
[ 256.855776][ T4983] gfs2_get_tree+0x4d/0x1e0
[ 256.860404][ T4983] vfs_get_tree+0x88/0x270
[ 256.864856][ T4983] do_new_mount+0x24a/0xa40
[ 256.869605][ T4983] __se_sys_mount+0x2e3/0x3d0
[ 256.874325][ T4983] ? __x64_sys_mount+0xc0/0xc0
[ 256.879126][ T4983] ? lockdep_hardirqs_on+0x94/0x140
[ 256.884715][ T4983] ? __x64_sys_mount+0x1c/0xc0
[ 256.889603][ T4983] do_syscall_64+0x4c/0xa0
[ 256.894145][ T4983] ? clear_bhb_loop+0x30/0x80
[ 256.899099][ T4983] ? clear_bhb_loop+0x30/0x80
[ 256.903803][ T4983] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 256.909909][ T4983] RIP: 0033:0x7ff11ced5a8a
[ 256.914642][ T4983] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 256.934367][ T4983] RSP: 002b:00007ffc21711868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.942828][ T4983] RAX: ffffffffffffffda RBX: 00007ffc217118f0 RCX: 00007ff11ced5a8a
[ 256.950836][ T4983] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffc217118b0
[ 256.959362][ T4983] RBP: 00002000000124c0 R08: 00007ffc217118f0 R09: 0000000000000000
[ 256.967538][ T4983] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 256.975742][ T4983] R13: 00007ffc217118b0 R14: 0000000000012616 R15: 0000200000000140
[ 256.983839][ T4983]
[ 256.987025][ T4983] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.000203][ T4983] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.022560][ T4985] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.030394][ T4985] CPU: 0 PID: 4985 Comm: syz.5.497 Not tainted syzkaller #0
[ 257.037805][ T4985] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 257.047957][ T4985] Call Trace:
[ 257.051271][ T4985]
[ 257.054249][ T4985] dump_stack_lvl+0x188/0x250
[ 257.059162][ T4985] ? show_regs_print_info+0x20/0x20
[ 257.064490][ T4985] ? load_image+0x400/0x400
[ 257.069139][ T4985] sysfs_create_dir_ns+0x26a/0x290
[ 257.074293][ T4985] ? sysfs_warn_dup+0xa0/0xa0
[ 257.079000][ T4985] ? do_raw_spin_unlock+0x11d/0x230
[ 257.084333][ T4985] kobject_add_internal+0x6e0/0xd90
[ 257.089572][ T4985] kobject_init_and_add+0x128/0x190
[ 257.094802][ T4985] ? lockdep_softirqs_off+0x430/0x430
[ 257.100472][ T4985] ? kobject_add+0x230/0x230
[ 257.105127][ T4985] ? __init_swait_queue_head+0xa5/0x150
[ 257.110709][ T4985] gfs2_sys_fs_add+0x24f/0x4b0
[ 257.115519][ T4985] ? gfs2_recover_set+0x240/0x240
[ 257.120667][ T4985] ? snprintf+0xe5/0x140
[ 257.124933][ T4985] ? __free_pages+0x95/0x1a0
[ 257.129740][ T4985] ? vscnprintf+0x80/0x80
[ 257.134120][ T4985] gfs2_fill_super+0x120f/0x1f00
[ 257.139098][ T4985] ? gfs2_reconfigure+0xd30/0xd30
[ 257.140718][ T4986] loop0: detected capacity change from 0 to 32768
[ 257.144178][ T4985] ? sb_set_blocksize+0xa5/0xe0
[ 257.155712][ T4985] get_tree_bdev+0x3f1/0x610
[ 257.160347][ T4985] ? gfs2_reconfigure+0xd30/0xd30
[ 257.165414][ T4985] gfs2_get_tree+0x4d/0x1e0
[ 257.170743][ T4985] vfs_get_tree+0x88/0x270
[ 257.175188][ T4985] do_new_mount+0x24a/0xa40
[ 257.179726][ T4985] __se_sys_mount+0x2e3/0x3d0
[ 257.184713][ T4985] ? __x64_sys_mount+0xc0/0xc0
[ 257.189597][ T4985] ? lockdep_hardirqs_on+0x94/0x140
[ 257.194817][ T4985] ? __x64_sys_mount+0x1c/0xc0
[ 257.199615][ T4985] do_syscall_64+0x4c/0xa0
[ 257.204051][ T4985] ? clear_bhb_loop+0x30/0x80
[ 257.208759][ T4985] ? clear_bhb_loop+0x30/0x80
[ 257.213460][ T4985] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.219381][ T4985] RIP: 0033:0x7f0531c31a8a
[ 257.223824][ T4985] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 257.243558][ T4985] RSP: 002b:00007ffef59bb608 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.252204][ T4985] RAX: ffffffffffffffda RBX: 00007ffef59bb690 RCX: 00007f0531c31a8a
[ 257.260223][ T4985] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffef59bb650
[ 257.268253][ T4985] RBP: 00002000000124c0 R08: 00007ffef59bb690 R09: 0000000000000000
[ 257.272159][ T4984] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.276707][ T4985] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 257.276726][ T4985] R13: 00007ffef59bb650 R14: 0000000000012616 R15: 0000200000000140
[ 257.276759][ T4985]
[ 257.303897][ T4984] CPU: 1 PID: 4984 Comm: syz.3.496 Not tainted syzkaller #0
[ 257.304634][ T4985] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.311407][ T4984] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 257.324594][ T4985] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.334834][ T4984] Call Trace:
[ 257.334849][ T4984]
[ 257.334860][ T4984] dump_stack_lvl+0x188/0x250
[ 257.352535][ T4984] ? show_regs_print_info+0x20/0x20
[ 257.357873][ T4984] ? load_image+0x400/0x400
[ 257.362430][ T4984] sysfs_create_dir_ns+0x26a/0x290
[ 257.367579][ T4984] ? sysfs_warn_dup+0xa0/0xa0
[ 257.372318][ T4984] ? do_raw_spin_unlock+0x11d/0x230
[ 257.377662][ T4984] kobject_add_internal+0x6e0/0xd90
[ 257.382907][ T4984] kobject_init_and_add+0x128/0x190
[ 257.388235][ T4984] ? lockdep_softirqs_off+0x430/0x430
[ 257.393745][ T4984] ? kobject_add+0x230/0x230
[ 257.398551][ T4984] ? __init_swait_queue_head+0xa5/0x150
[ 257.404236][ T4984] gfs2_sys_fs_add+0x24f/0x4b0
[ 257.409039][ T4984] ? gfs2_recover_set+0x240/0x240
[ 257.414182][ T4984] ? snprintf+0xe5/0x140
[ 257.418460][ T4984] ? __free_pages+0x95/0x1a0
[ 257.423081][ T4984] ? vscnprintf+0x80/0x80
[ 257.427451][ T4984] gfs2_fill_super+0x120f/0x1f00
[ 257.432652][ T4984] ? gfs2_reconfigure+0xd30/0xd30
[ 257.437824][ T4984] ? sb_set_blocksize+0xa5/0xe0
[ 257.442712][ T4984] get_tree_bdev+0x3f1/0x610
[ 257.447331][ T4984] ? gfs2_reconfigure+0xd30/0xd30
[ 257.452392][ T4984] gfs2_get_tree+0x4d/0x1e0
[ 257.456923][ T4984] vfs_get_tree+0x88/0x270
[ 257.461369][ T4984] do_new_mount+0x24a/0xa40
[ 257.466042][ T4984] __se_sys_mount+0x2e3/0x3d0
[ 257.470850][ T4984] ? __x64_sys_mount+0xc0/0xc0
[ 257.475648][ T4984] ? lockdep_hardirqs_on+0x94/0x140
[ 257.480874][ T4984] ? __x64_sys_mount+0x1c/0xc0
[ 257.485664][ T4984] do_syscall_64+0x4c/0xa0
[ 257.490142][ T4984] ? clear_bhb_loop+0x30/0x80
[ 257.494940][ T4984] ? clear_bhb_loop+0x30/0x80
[ 257.499643][ T4984] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.505558][ T4984] RIP: 0033:0x7fe96f9d7a8a
[ 257.510001][ T4984] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 257.529850][ T4984] RSP: 002b:00007ffe741ea638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.538406][ T4984] RAX: ffffffffffffffda RBX: 00007ffe741ea6c0 RCX: 00007fe96f9d7a8a
[ 257.546504][ T4984] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffe741ea680
[ 257.554508][ T4984] RBP: 00002000000124c0 R08: 00007ffe741ea6c0 R09: 0000000000000000
[ 257.562514][ T4984] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 257.571124][ T4984] R13: 00007ffe741ea680 R14: 0000000000012616 R15: 0000200000000140
[ 257.579253][ T4984]
[ 257.584444][ T4984] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.597909][ T4984] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.615613][ T4986] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.624344][ T4986] CPU: 1 PID: 4986 Comm: syz.0.498 Not tainted syzkaller #0
[ 257.631755][ T4986] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 257.642123][ T4986] Call Trace:
[ 257.645644][ T4986]
[ 257.648601][ T4986] dump_stack_lvl+0x188/0x250
[ 257.653493][ T4986] ? show_regs_print_info+0x20/0x20
[ 257.658810][ T4986] ? load_image+0x400/0x400
[ 257.663365][ T4986] sysfs_create_dir_ns+0x26a/0x290
[ 257.668508][ T4986] ? sysfs_warn_dup+0xa0/0xa0
[ 257.673227][ T4986] ? do_raw_spin_unlock+0x11d/0x230
[ 257.678559][ T4986] kobject_add_internal+0x6e0/0xd90
[ 257.683800][ T4986] kobject_init_and_add+0x128/0x190
[ 257.689048][ T4986] ? lockdep_softirqs_off+0x430/0x430
[ 257.694457][ T4986] ? kobject_add+0x230/0x230
[ 257.699174][ T4986] ? __init_swait_queue_head+0xa5/0x150
[ 257.704780][ T4986] gfs2_sys_fs_add+0x24f/0x4b0
[ 257.709590][ T4986] ? gfs2_recover_set+0x240/0x240
[ 257.714647][ T4986] ? snprintf+0xe5/0x140
[ 257.718923][ T4986] ? __free_pages+0x95/0x1a0
[ 257.723554][ T4986] ? vscnprintf+0x80/0x80
[ 257.727936][ T4986] gfs2_fill_super+0x120f/0x1f00
[ 257.732925][ T4986] ? gfs2_reconfigure+0xd30/0xd30
[ 257.738006][ T4986] ? sb_set_blocksize+0xa5/0xe0
[ 257.742894][ T4986] get_tree_bdev+0x3f1/0x610
[ 257.747706][ T4986] ? gfs2_reconfigure+0xd30/0xd30
[ 257.752938][ T4986] gfs2_get_tree+0x4d/0x1e0
[ 257.757482][ T4986] vfs_get_tree+0x88/0x270
[ 257.761934][ T4986] do_new_mount+0x24a/0xa40
[ 257.766473][ T4986] __se_sys_mount+0x2e3/0x3d0
[ 257.771295][ T4986] ? __x64_sys_mount+0xc0/0xc0
[ 257.776120][ T4986] ? lockdep_hardirqs_on+0x94/0x140
[ 257.781450][ T4986] ? __x64_sys_mount+0x1c/0xc0
[ 257.786265][ T4986] do_syscall_64+0x4c/0xa0
[ 257.790714][ T4986] ? clear_bhb_loop+0x30/0x80
[ 257.795425][ T4986] ? clear_bhb_loop+0x30/0x80
[ 257.800134][ T4986] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.806238][ T4986] RIP: 0033:0x7f269053aa8a
[ 257.810685][ T4986] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 257.830406][ T4986] RSP: 002b:00007ffcd912c638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.838849][ T4986] RAX: ffffffffffffffda RBX: 00007ffcd912c6c0 RCX: 00007f269053aa8a
[ 257.846833][ T4986] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffcd912c680
[ 257.854904][ T4986] RBP: 00002000000124c0 R08: 00007ffcd912c6c0 R09: 0000000000000000
[ 257.863143][ T4986] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 257.871136][ T4986] R13: 00007ffcd912c680 R14: 0000000000012616 R15: 0000200000000140
[ 257.879208][ T4986]
[ 257.884407][ T4986] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.898199][ T4986] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.270328][ T4988] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.281075][ T4988] CPU: 0 PID: 4988 Comm: syz.1.500 Not tainted syzkaller #0
[ 258.288422][ T4988] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 258.298682][ T4988] Call Trace:
[ 258.302228][ T4988]
[ 258.305281][ T4988] dump_stack_lvl+0x188/0x250
[ 258.310011][ T4988] ? show_regs_print_info+0x20/0x20
[ 258.315256][ T4988] ? load_image+0x400/0x400
[ 258.319900][ T4988] sysfs_create_dir_ns+0x26a/0x290
[ 258.325047][ T4988] ? sysfs_warn_dup+0xa0/0xa0
[ 258.329758][ T4988] ? do_raw_spin_unlock+0x11d/0x230
[ 258.335129][ T4988] kobject_add_internal+0x6e0/0xd90
[ 258.340477][ T4988] kobject_init_and_add+0x128/0x190
[ 258.345808][ T4988] ? lockdep_softirqs_off+0x430/0x430
[ 258.351310][ T4988] ? kobject_add+0x230/0x230
[ 258.356042][ T4988] ? __init_swait_queue_head+0xa5/0x150
[ 258.361717][ T4988] gfs2_sys_fs_add+0x24f/0x4b0
[ 258.366606][ T4988] ? gfs2_recover_set+0x240/0x240
[ 258.371746][ T4988] ? snprintf+0xe5/0x140
[ 258.376331][ T4988] ? __free_pages+0x95/0x1a0
[ 258.381141][ T4988] ? vscnprintf+0x80/0x80
[ 258.385717][ T4988] gfs2_fill_super+0x120f/0x1f00
[ 258.390747][ T4988] ? gfs2_reconfigure+0xd30/0xd30
[ 258.396012][ T4988] ? sb_set_blocksize+0xa5/0xe0
[ 258.400976][ T4988] get_tree_bdev+0x3f1/0x610
[ 258.405593][ T4988] ? gfs2_reconfigure+0xd30/0xd30
[ 258.410737][ T4988] gfs2_get_tree+0x4d/0x1e0
[ 258.415261][ T4988] vfs_get_tree+0x88/0x270
[ 258.419788][ T4988] do_new_mount+0x24a/0xa40
[ 258.424407][ T4988] __se_sys_mount+0x2e3/0x3d0
[ 258.429118][ T4988] ? __x64_sys_mount+0xc0/0xc0
[ 258.434021][ T4988] ? lockdep_hardirqs_on+0x94/0x140
[ 258.439347][ T4988] ? __x64_sys_mount+0x1c/0xc0
[ 258.444345][ T4988] do_syscall_64+0x4c/0xa0
[ 258.448896][ T4988] ? clear_bhb_loop+0x30/0x80
[ 258.453716][ T4988] ? clear_bhb_loop+0x30/0x80
[ 258.458429][ T4988] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 258.464362][ T4988] RIP: 0033:0x7f621d05da8a
[ 258.468816][ T4988] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 258.488816][ T4988] RSP: 002b:00007fff75434ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.497371][ T4988] RAX: ffffffffffffffda RBX: 00007fff75434f80 RCX: 00007f621d05da8a
[ 258.505736][ T4988] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fff75434f40
[ 258.514307][ T4988] RBP: 00002000000124c0 R08: 00007fff75434f80 R09: 0000000000000000
[ 258.522313][ T4988] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 258.530423][ T4988] R13: 00007fff75434f40 R14: 0000000000012616 R15: 0000200000000140
[ 258.538759][ T4988]
[ 258.542049][ T4988] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.555579][ T4988] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.767421][ T4989] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.775102][ T4989] CPU: 1 PID: 4989 Comm: syz.3.501 Not tainted syzkaller #0
[ 258.782430][ T4989] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 258.792613][ T4989] Call Trace:
[ 258.796112][ T4989]
[ 258.799083][ T4989] dump_stack_lvl+0x188/0x250
[ 258.803834][ T4989] ? show_regs_print_info+0x20/0x20
[ 258.809065][ T4989] ? load_image+0x400/0x400
[ 258.813697][ T4989] sysfs_create_dir_ns+0x26a/0x290
[ 258.818835][ T4989] ? sysfs_warn_dup+0xa0/0xa0
[ 258.823531][ T4989] ? do_raw_spin_unlock+0x11d/0x230
[ 258.828750][ T4989] kobject_add_internal+0x6e0/0xd90
[ 258.833989][ T4989] kobject_init_and_add+0x128/0x190
[ 258.839320][ T4989] ? lockdep_softirqs_off+0x430/0x430
[ 258.844734][ T4989] ? kobject_add+0x230/0x230
[ 258.849462][ T4989] ? __init_swait_queue_head+0xa5/0x150
[ 258.855065][ T4989] gfs2_sys_fs_add+0x24f/0x4b0
[ 258.859870][ T4989] ? gfs2_recover_set+0x240/0x240
[ 258.864932][ T4989] ? snprintf+0xe5/0x140
[ 258.869297][ T4989] ? __free_pages+0x95/0x1a0
[ 258.873923][ T4989] ? vscnprintf+0x80/0x80
[ 258.878300][ T4989] gfs2_fill_super+0x120f/0x1f00
[ 258.883303][ T4989] ? gfs2_reconfigure+0xd30/0xd30
[ 258.888391][ T4989] ? sb_set_blocksize+0xa5/0xe0
[ 258.893280][ T4989] get_tree_bdev+0x3f1/0x610
[ 258.897913][ T4989] ? gfs2_reconfigure+0xd30/0xd30
[ 258.904620][ T4989] gfs2_get_tree+0x4d/0x1e0
[ 258.909159][ T4989] vfs_get_tree+0x88/0x270
[ 258.913611][ T4989] do_new_mount+0x24a/0xa40
[ 258.918158][ T4989] __se_sys_mount+0x2e3/0x3d0
[ 258.923741][ T4989] ? __x64_sys_mount+0xc0/0xc0
[ 258.928551][ T4989] ? lockdep_hardirqs_on+0x94/0x140
[ 258.933782][ T4989] ? __x64_sys_mount+0x1c/0xc0
[ 258.938578][ T4989] do_syscall_64+0x4c/0xa0
[ 258.943021][ T4989] ? clear_bhb_loop+0x30/0x80
[ 258.947757][ T4989] ? clear_bhb_loop+0x30/0x80
[ 258.952740][ T4989] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 258.958678][ T4989] RIP: 0033:0x7fe96f9d7a8a
[ 258.963127][ T4989] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 258.983012][ T4989] RSP: 002b:00007ffe741ea638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.987533][ T4991] set_capacity_and_notify: 3 callbacks suppressed
[ 258.987548][ T4991] loop5: detected capacity change from 0 to 32768
[ 258.991522][ T4989] RAX: ffffffffffffffda RBX: 00007ffe741ea6c0 RCX: 00007fe96f9d7a8a
[ 259.012341][ T4989] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffe741ea680
[ 259.020345][ T4989] RBP: 00002000000124c0 R08: 00007ffe741ea6c0 R09: 0000000000000000
[ 259.028354][ T4989] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 259.036354][ T4989] R13: 00007ffe741ea680 R14: 0000000000012616 R15: 0000200000000140
[ 259.044374][ T4989]
[ 259.048858][ T4989] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.063221][ T4989] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.073396][ T4990] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.080864][ T4990] CPU: 1 PID: 4990 Comm: syz.2.502 Not tainted syzkaller #0
[ 259.088289][ T4990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 259.098791][ T4990] Call Trace:
[ 259.102104][ T4990]
[ 259.105343][ T4990] dump_stack_lvl+0x188/0x250
[ 259.110058][ T4990] ? show_regs_print_info+0x20/0x20
[ 259.115282][ T4990] ? load_image+0x400/0x400
[ 259.119826][ T4990] sysfs_create_dir_ns+0x26a/0x290
[ 259.124961][ T4990] ? sysfs_warn_dup+0xa0/0xa0
[ 259.129669][ T4990] ? do_raw_spin_unlock+0x11d/0x230
[ 259.134898][ T4990] kobject_add_internal+0x6e0/0xd90
[ 259.140143][ T4990] kobject_init_and_add+0x128/0x190
[ 259.145373][ T4990] ? lockdep_softirqs_off+0x430/0x430
[ 259.150783][ T4990] ? kobject_add+0x230/0x230
[ 259.155417][ T4990] ? __init_swait_queue_head+0xa5/0x150
[ 259.161018][ T4990] gfs2_sys_fs_add+0x24f/0x4b0
[ 259.165840][ T4990] ? gfs2_recover_set+0x240/0x240
[ 259.170915][ T4990] ? snprintf+0xe5/0x140
[ 259.175193][ T4990] ? __free_pages+0x95/0x1a0
[ 259.179829][ T4990] ? vscnprintf+0x80/0x80
[ 259.184205][ T4990] gfs2_fill_super+0x120f/0x1f00
[ 259.189193][ T4990] ? gfs2_reconfigure+0xd30/0xd30
[ 259.194298][ T4990] ? sb_set_blocksize+0xa5/0xe0
[ 259.199182][ T4990] get_tree_bdev+0x3f1/0x610
[ 259.203810][ T4990] ? gfs2_reconfigure+0xd30/0xd30
[ 259.208873][ T4990] gfs2_get_tree+0x4d/0x1e0
[ 259.213501][ T4990] vfs_get_tree+0x88/0x270
[ 259.217964][ T4990] do_new_mount+0x24a/0xa40
[ 259.222594][ T4990] __se_sys_mount+0x2e3/0x3d0
[ 259.227310][ T4990] ? __x64_sys_mount+0xc0/0xc0
[ 259.232104][ T4990] ? lockdep_hardirqs_on+0x94/0x140
[ 259.237328][ T4990] ? __x64_sys_mount+0x1c/0xc0
[ 259.242257][ T4990] do_syscall_64+0x4c/0xa0
[ 259.246698][ T4990] ? clear_bhb_loop+0x30/0x80
[ 259.251486][ T4990] ? clear_bhb_loop+0x30/0x80
[ 259.256203][ T4990] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 259.262149][ T4990] RIP: 0033:0x7ff11ced5a8a
[ 259.266597][ T4990] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 259.285912][ T4992] loop0: detected capacity change from 0 to 32768
[ 259.286311][ T4990] RSP: 002b:00007ffc21711868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.301220][ T4990] RAX: ffffffffffffffda RBX: 00007ffc217118f0 RCX: 00007ff11ced5a8a
[ 259.309436][ T4990] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffc217118b0
[ 259.317625][ T4990] RBP: 00002000000124c0 R08: 00007ffc217118f0 R09: 0000000000000000
[ 259.325637][ T4990] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 259.333640][ T4990] R13: 00007ffc217118b0 R14: 0000000000012616 R15: 0000200000000140
[ 259.342098][ T4990]
[ 259.348415][ T4990] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.361887][ T4990] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.378933][ T4992] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.379016][ T4991] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.386641][ T4992] CPU: 1 PID: 4992 Comm: syz.0.504 Not tainted syzkaller #0
[ 259.401130][ T4992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 259.411334][ T4992] Call Trace:
[ 259.414625][ T4992]
[ 259.417563][ T4992] dump_stack_lvl+0x188/0x250
[ 259.422256][ T4992] ? show_regs_print_info+0x20/0x20
[ 259.428092][ T4992] ? load_image+0x400/0x400
[ 259.432610][ T4992] sysfs_create_dir_ns+0x26a/0x290
[ 259.437811][ T4992] ? sysfs_warn_dup+0xa0/0xa0
[ 259.442620][ T4992] ? do_raw_spin_unlock+0x11d/0x230
[ 259.447834][ T4992] kobject_add_internal+0x6e0/0xd90
[ 259.453093][ T4992] kobject_init_and_add+0x128/0x190
[ 259.458298][ T4992] ? lockdep_softirqs_off+0x430/0x430
[ 259.463859][ T4992] ? kobject_add+0x230/0x230
[ 259.468457][ T4992] ? __init_swait_queue_head+0xa5/0x150
[ 259.474018][ T4992] gfs2_sys_fs_add+0x24f/0x4b0
[ 259.478794][ T4992] ? gfs2_recover_set+0x240/0x240
[ 259.483831][ T4992] ? snprintf+0xe5/0x140
[ 259.488110][ T4992] ? __free_pages+0x95/0x1a0
[ 259.492805][ T4992] ? vscnprintf+0x80/0x80
[ 259.497255][ T4992] gfs2_fill_super+0x120f/0x1f00
[ 259.502217][ T4992] ? gfs2_reconfigure+0xd30/0xd30
[ 259.507374][ T4992] ? sb_set_blocksize+0xa5/0xe0
[ 259.512233][ T4992] get_tree_bdev+0x3f1/0x610
[ 259.516834][ T4992] ? gfs2_reconfigure+0xd30/0xd30
[ 259.521871][ T4992] gfs2_get_tree+0x4d/0x1e0
[ 259.526403][ T4992] vfs_get_tree+0x88/0x270
[ 259.530825][ T4992] do_new_mount+0x24a/0xa40
[ 259.535345][ T4992] __se_sys_mount+0x2e3/0x3d0
[ 259.540090][ T4992] ? __x64_sys_mount+0xc0/0xc0
[ 259.544861][ T4992] ? lockdep_hardirqs_on+0x94/0x140
[ 259.550068][ T4992] ? __x64_sys_mount+0x1c/0xc0
[ 259.554839][ T4992] do_syscall_64+0x4c/0xa0
[ 259.559267][ T4992] ? clear_bhb_loop+0x30/0x80
[ 259.564036][ T4992] ? clear_bhb_loop+0x30/0x80
[ 259.568831][ T4992] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 259.574753][ T4992] RIP: 0033:0x7f269053aa8a
[ 259.579488][ T4992] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 259.599320][ T4992] RSP: 002b:00007ffcd912c638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.607950][ T4992] RAX: ffffffffffffffda RBX: 00007ffcd912c6c0 RCX: 00007f269053aa8a
[ 259.616019][ T4992] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffcd912c680
[ 259.624269][ T4992] RBP: 00002000000124c0 R08: 00007ffcd912c6c0 R09: 0000000000000000
[ 259.632339][ T4992] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 259.640320][ T4992] R13: 00007ffcd912c680 R14: 0000000000012616 R15: 0000200000000140
[ 259.648328][ T4992]
[ 259.651638][ T4991] CPU: 0 PID: 4991 Comm: syz.5.503 Not tainted syzkaller #0
[ 259.651717][ T4992] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.659387][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 259.659402][ T4991] Call Trace:
[ 259.659411][ T4991]
[ 259.659420][ T4991] dump_stack_lvl+0x188/0x250
[ 259.672857][ T4992] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.682986][ T4991] ? show_regs_print_info+0x20/0x20
[ 259.683021][ T4991] ? load_image+0x400/0x400
[ 259.711148][ T4991] sysfs_create_dir_ns+0x26a/0x290
[ 259.716477][ T4991] ? sysfs_warn_dup+0xa0/0xa0
[ 259.721291][ T4991] ? do_raw_spin_unlock+0x11d/0x230
[ 259.726617][ T4991] kobject_add_internal+0x6e0/0xd90
[ 259.731854][ T4991] kobject_init_and_add+0x128/0x190
[ 259.737081][ T4991] ? lockdep_softirqs_off+0x430/0x430
[ 259.742675][ T4991] ? kobject_add+0x230/0x230
[ 259.747300][ T4991] ? __init_swait_queue_head+0xa5/0x150
[ 259.752883][ T4991] gfs2_sys_fs_add+0x24f/0x4b0
[ 259.757697][ T4991] ? gfs2_recover_set+0x240/0x240
[ 259.762850][ T4991] ? snprintf+0xe5/0x140
[ 259.767126][ T4991] ? __free_pages+0x95/0x1a0
[ 259.771757][ T4991] ? vscnprintf+0x80/0x80
[ 259.776305][ T4991] gfs2_fill_super+0x120f/0x1f00
[ 259.781474][ T4991] ? gfs2_reconfigure+0xd30/0xd30
[ 259.786562][ T4991] ? sb_set_blocksize+0xa5/0xe0
[ 259.791716][ T4991] get_tree_bdev+0x3f1/0x610
[ 259.796351][ T4991] ? gfs2_reconfigure+0xd30/0xd30
[ 259.801507][ T4991] gfs2_get_tree+0x4d/0x1e0
[ 259.806131][ T4991] vfs_get_tree+0x88/0x270
[ 259.810683][ T4991] do_new_mount+0x24a/0xa40
[ 259.815395][ T4991] __se_sys_mount+0x2e3/0x3d0
[ 259.820451][ T4991] ? __x64_sys_mount+0xc0/0xc0
[ 259.825416][ T4991] ? lockdep_hardirqs_on+0x94/0x140
[ 259.830733][ T4991] ? __x64_sys_mount+0x1c/0xc0
[ 259.835527][ T4991] do_syscall_64+0x4c/0xa0
[ 259.840051][ T4991] ? clear_bhb_loop+0x30/0x80
[ 259.844747][ T4991] ? clear_bhb_loop+0x30/0x80
[ 259.849671][ T4991] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 259.855690][ T4991] RIP: 0033:0x7f0531c31a8a
[ 259.860220][ T4991] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 259.879966][ T4991] RSP: 002b:00007ffef59bb608 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.888427][ T4991] RAX: ffffffffffffffda RBX: 00007ffef59bb690 RCX: 00007f0531c31a8a
[ 259.896617][ T4991] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffef59bb650
[ 259.904802][ T4991] RBP: 00002000000124c0 R08: 00007ffef59bb690 R09: 0000000000000000
[ 259.912896][ T4991] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 259.920904][ T4991] R13: 00007ffef59bb650 R14: 0000000000012616 R15: 0000200000000140
[ 259.929125][ T4991]
[ 259.932353][ T4991] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.945521][ T4991] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 260.144798][ T4993] loop1: detected capacity change from 0 to 32768
[ 260.339004][ T4993] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 260.346782][ T4993] CPU: 1 PID: 4993 Comm: syz.1.505 Not tainted syzkaller #0
[ 260.354210][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 260.364301][ T4993] Call Trace:
[ 260.367614][ T4993]
[ 260.370585][ T4993] dump_stack_lvl+0x188/0x250
[ 260.375413][ T4993] ? show_regs_print_info+0x20/0x20
[ 260.380730][ T4993] ? load_image+0x400/0x400
[ 260.385273][ T4993] sysfs_create_dir_ns+0x26a/0x290
[ 260.390599][ T4993] ? sysfs_warn_dup+0xa0/0xa0
[ 260.395306][ T4993] ? do_raw_spin_unlock+0x11d/0x230
[ 260.400717][ T4993] kobject_add_internal+0x6e0/0xd90
[ 260.406039][ T4993] kobject_init_and_add+0x128/0x190
[ 260.411335][ T4993] ? lockdep_softirqs_off+0x430/0x430
[ 260.416735][ T4993] ? kobject_add+0x230/0x230
[ 260.421444][ T4993] ? __init_swait_queue_head+0xa5/0x150
[ 260.427110][ T4993] gfs2_sys_fs_add+0x24f/0x4b0
[ 260.431986][ T4993] ? gfs2_recover_set+0x240/0x240
[ 260.437424][ T4993] ? snprintf+0xe5/0x140
[ 260.441690][ T4993] ? __free_pages+0x95/0x1a0
[ 260.446587][ T4993] ? vscnprintf+0x80/0x80
[ 260.450958][ T4993] gfs2_fill_super+0x120f/0x1f00
[ 260.455948][ T4993] ? gfs2_reconfigure+0xd30/0xd30
[ 260.461017][ T4993] ? sb_set_blocksize+0xa5/0xe0
[ 260.465891][ T4993] get_tree_bdev+0x3f1/0x610
[ 260.470676][ T4993] ? gfs2_reconfigure+0xd30/0xd30
[ 260.475730][ T4993] gfs2_get_tree+0x4d/0x1e0
[ 260.480265][ T4993] vfs_get_tree+0x88/0x270
[ 260.485744][ T4993] do_new_mount+0x24a/0xa40
[ 260.490300][ T4993] __se_sys_mount+0x2e3/0x3d0
[ 260.495005][ T4993] ? __x64_sys_mount+0xc0/0xc0
[ 260.499810][ T4993] ? lockdep_hardirqs_on+0x94/0x140
[ 260.505033][ T4993] ? __x64_sys_mount+0x1c/0xc0
[ 260.509838][ T4993] do_syscall_64+0x4c/0xa0
[ 260.514281][ T4993] ? clear_bhb_loop+0x30/0x80
[ 260.519336][ T4993] ? clear_bhb_loop+0x30/0x80
[ 260.524081][ T4993] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 260.530010][ T4993] RIP: 0033:0x7f621d05da8a
[ 260.534515][ T4993] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 260.554241][ T4993] RSP: 002b:00007fff75434ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 260.562921][ T4993] RAX: ffffffffffffffda RBX: 00007fff75434f80 RCX: 00007f621d05da8a
[ 260.571141][ T4993] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fff75434f40
[ 260.579152][ T4993] RBP: 00002000000124c0 R08: 00007fff75434f80 R09: 0000000000000000
[ 260.587563][ T4993] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 260.595749][ T4993] R13: 00007fff75434f40 R14: 0000000000012616 R15: 0000200000000140
[ 260.603780][ T4993]
[ 260.609771][ T4993] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 260.623045][ T4993] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/04/05 06:56:29 executed programs: 499
[ 260.643245][ T4995] loop2: detected capacity change from 0 to 32768
[ 260.992271][ T4994] loop0: detected capacity change from 0 to 32768
[ 261.024766][ T4997] loop3: detected capacity change from 0 to 32768
[ 261.155157][ T4297] gfs2: fsid=syz:syz.0: warning: assertion "!qd->qd_change" failed at function = gfs2_quota_cleanup, file = fs/gfs2/quota.c, line = 1485
[ 261.177518][ T4297] CPU: 0 PID: 4297 Comm: syz-executor Not tainted syzkaller #0
[ 261.185211][ T4297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 261.195440][ T4297] Call Trace:
[ 261.198768][ T4297]
[ 261.201743][ T4297] dump_stack_lvl+0x188/0x250
[ 261.206480][ T4297] ? show_regs_print_info+0x20/0x20
[ 261.211826][ T4297] ? load_image+0x400/0x400
[ 261.216380][ T4297] ? do_raw_spin_unlock+0x11d/0x230
[ 261.221618][ T4297] gfs2_assert_warn_i+0x18f/0x2c0
[ 261.226684][ T4297] gfs2_quota_cleanup+0x4b4/0x6a0
[ 261.231765][ T4297] gfs2_make_fs_ro+0x440/0x620
[ 261.236559][ T4297] ? __might_sleep+0xf0/0xf0
[ 261.241269][ T4297] ? gfs2_dinode_out+0xb00/0xb00
[ 261.246231][ T4297] ? _raw_spin_unlock+0x24/0x40
[ 261.251124][ T4297] ? gfs2_glock_nq+0xcb0/0x1550
[ 261.256025][ T4297] gfs2_withdraw+0x610/0x1490
[ 261.257873][ T4996] loop5: detected capacity change from 0 to 32768
[ 261.260749][ T4297] ? gfs2_lm+0x240/0x240
[ 261.271412][ T4297] ? rwsem_write_trylock+0x135/0x1c0
[ 261.277003][ T4297] ? gfs2_freeze_lock+0x52/0xc0
[ 261.281886][ T4297] ? up_write+0x1bb/0x420
[ 261.286252][ T4297] gfs2_log_flush+0x1e1a/0x2600
[ 261.291149][ T4297] ? gfs2_ail_empty_tr+0x2f0/0x2f0
[ 261.296259][ T4297] ? do_sync+0x955/0xc40
[ 261.300512][ T4297] ? kfree+0xef/0x2a0
[ 261.304636][ T4297] do_sync+0x9b0/0xc40
[ 261.308840][ T4297] ? slot_put+0x1e0/0x1e0
[ 261.313296][ T4297] ? __lock_acquire+0x7d10/0x7d10
[ 261.318328][ T4297] ? do_raw_spin_lock+0x128/0x2f0
[ 261.323353][ T4297] ? do_raw_spin_unlock+0x11d/0x230
[ 261.328553][ T4297] gfs2_quota_sync+0x32c/0x700
[ 261.333323][ T4297] gfs2_sync_fs+0x48/0xb0
[ 261.337652][ T4297] sync_filesystem+0xe6/0x220
[ 261.342421][ T4297] generic_shutdown_super+0x6b/0x300
[ 261.347706][ T4297] kill_block_super+0x7c/0xe0
[ 261.352379][ T4297] deactivate_locked_super+0x93/0xf0
[ 261.357660][ T4297] cleanup_mnt+0x42d/0x4e0
[ 261.362110][ T4297] ? lockdep_hardirqs_on+0x94/0x140
[ 261.367326][ T4297] task_work_run+0x125/0x1a0
[ 261.371918][ T4297] exit_to_user_mode_loop+0x10f/0x130
[ 261.377287][ T4297] exit_to_user_mode_prepare+0xee/0x180
[ 261.383100][ T4297] syscall_exit_to_user_mode+0x16/0x40
[ 261.388565][ T4297] do_syscall_64+0x58/0xa0
[ 261.392981][ T4297] ? clear_bhb_loop+0x30/0x80
[ 261.397648][ T4297] ? clear_bhb_loop+0x30/0x80
[ 261.402335][ T4297] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 261.408232][ T4297] RIP: 0033:0x7f5195806a57
[ 261.413081][ T4297] Code: a2 c7 05 9c fc 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 261.432822][ T4297] RSP: 002b:00007ffe24e88118 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 261.441632][ T4297] RAX: 0000000000000000 RBX: 00007f519589b048 RCX: 00007f5195806a57
[ 261.449800][ T4297] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe24e881d0
[ 261.457809][ T4297] RBP: 00007ffe24e881d0 R08: 00007ffe24e891d0 R09: 00000000ffffffff
[ 261.466364][ T4297] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe24e89260
[ 261.474647][ T4297] R13: 00007f519589b048 R14: 000000000002f88c R15: 00007ffe24e892a0
[ 261.482676][ T4297]
[ 261.491018][ T4995] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.498776][ T4995] CPU: 0 PID: 4995 Comm: syz.2.508 Not tainted syzkaller #0
[ 261.501154][ T4996] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.506288][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 261.506303][ T4995] Call Trace:
[ 261.506311][ T4995]
[ 261.506321][ T4995] dump_stack_lvl+0x188/0x250
[ 261.506351][ T4995] ? show_regs_print_info+0x20/0x20
[ 261.506376][ T4995] ? load_image+0x400/0x400
[ 261.506409][ T4995] sysfs_create_dir_ns+0x26a/0x290
[ 261.506442][ T4995] ? sysfs_warn_dup+0xa0/0xa0
[ 261.555648][ T4995] ? do_raw_spin_unlock+0x11d/0x230
[ 261.560894][ T4995] kobject_add_internal+0x6e0/0xd90
[ 261.566148][ T4995] kobject_init_and_add+0x128/0x190
[ 261.571443][ T4995] ? lockdep_softirqs_off+0x430/0x430
[ 261.576883][ T4995] ? kobject_add+0x230/0x230
[ 261.581843][ T4995] ? __init_swait_queue_head+0xa5/0x150
[ 261.587490][ T4995] gfs2_sys_fs_add+0x24f/0x4b0
[ 261.592272][ T4995] ? gfs2_recover_set+0x240/0x240
[ 261.597320][ T4995] ? snprintf+0xe5/0x140
[ 261.601828][ T4995] ? __free_pages+0x95/0x1a0
[ 261.606582][ T4995] ? vscnprintf+0x80/0x80
[ 261.610954][ T4995] gfs2_fill_super+0x120f/0x1f00
[ 261.616224][ T4995] ? gfs2_reconfigure+0xd30/0xd30
[ 261.621380][ T4995] ? sb_set_blocksize+0xa5/0xe0
[ 261.626419][ T4995] get_tree_bdev+0x3f1/0x610
[ 261.631203][ T4995] ? gfs2_reconfigure+0xd30/0xd30
[ 261.636272][ T4995] gfs2_get_tree+0x4d/0x1e0
[ 261.640994][ T4995] vfs_get_tree+0x88/0x270
[ 261.645533][ T4995] do_new_mount+0x24a/0xa40
[ 261.650070][ T4995] __se_sys_mount+0x2e3/0x3d0
[ 261.654861][ T4995] ? __x64_sys_mount+0xc0/0xc0
[ 261.659679][ T4995] ? lockdep_hardirqs_on+0x94/0x140
[ 261.665159][ T4995] ? __x64_sys_mount+0x1c/0xc0
[ 261.670196][ T4995] do_syscall_64+0x4c/0xa0
[ 261.674728][ T4995] ? clear_bhb_loop+0x30/0x80
[ 261.679412][ T4995] ? clear_bhb_loop+0x30/0x80
[ 261.684221][ T4995] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 261.690223][ T4995] RIP: 0033:0x7ff11ced5a8a
[ 261.694660][ T4995] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 261.714450][ T4995] RSP: 002b:00007ffc21711868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 261.722971][ T4995] RAX: ffffffffffffffda RBX: 00007ffc217118f0 RCX: 00007ff11ced5a8a
[ 261.731483][ T4995] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffc217118b0
[ 261.739462][ T4995] RBP: 00002000000124c0 R08: 00007ffc217118f0 R09: 0000000000000000
[ 261.747614][ T4995] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 261.755598][ T4995] R13: 00007ffc217118b0 R14: 0000000000012616 R15: 0000200000000140
[ 261.763857][ T4995]
[ 261.766883][ T4996] CPU: 1 PID: 4996 Comm: syz.5.509 Not tainted syzkaller #0
[ 261.767546][ T4995] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 261.774192][ T4996] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 261.787551][ T4995] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 261.797575][ T4996] Call Trace:
[ 261.797595][ T4996]
[ 261.797606][ T4996] dump_stack_lvl+0x188/0x250
[ 261.797636][ T4996] ? show_regs_print_info+0x20/0x20
[ 261.797662][ T4996] ? load_image+0x400/0x400
[ 261.806762][ T4297] gfs2: fsid=syz:syz.0: Journal recovery skipped for jid 0 until next mount.
[ 261.807689][ T4996] sysfs_create_dir_ns+0x26a/0x290
[ 261.810633][ T4297] gfs2: fsid=syz:syz.0: Glock dequeues delayed: 0
[ 261.815670][ T4996] ? sysfs_warn_dup+0xa0/0xa0
[ 261.815695][ T4996] ? do_raw_spin_unlock+0x11d/0x230
[ 261.815720][ T4996] kobject_add_internal+0x6e0/0xd90
[ 261.815750][ T4996] kobject_init_and_add+0x128/0x190
[ 261.815773][ T4996] ? lockdep_softirqs_off+0x430/0x430
[ 261.815800][ T4996] ? kobject_add+0x230/0x230
[ 261.822172][ T4297] gfs2: fsid=syz:syz.0: File system withdrawn
[ 261.825766][ T4996] ? __init_swait_queue_head+0xa5/0x150
[ 261.825801][ T4996] gfs2_sys_fs_add+0x24f/0x4b0
[ 261.872675][ T4994] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.872728][ T4996] ? gfs2_recover_set+0x240/0x240
[ 261.906364][ T4996] ? snprintf+0xe5/0x140
[ 261.910627][ T4996] ? __free_pages+0x95/0x1a0
[ 261.915233][ T4996] ? vscnprintf+0x80/0x80
[ 261.919842][ T4996] gfs2_fill_super+0x120f/0x1f00
[ 261.924807][ T4996] ? gfs2_reconfigure+0xd30/0xd30
[ 261.929864][ T4996] ? sb_set_blocksize+0xa5/0xe0
[ 261.934723][ T4996] get_tree_bdev+0x3f1/0x610
[ 261.939411][ T4996] ? gfs2_reconfigure+0xd30/0xd30
[ 261.944443][ T4996] gfs2_get_tree+0x4d/0x1e0
[ 261.948955][ T4996] vfs_get_tree+0x88/0x270
[ 261.953733][ T4996] do_new_mount+0x24a/0xa40
[ 261.958386][ T4996] __se_sys_mount+0x2e3/0x3d0
[ 261.963267][ T4996] ? __x64_sys_mount+0xc0/0xc0
[ 261.968058][ T4996] ? lockdep_hardirqs_on+0x94/0x140
[ 261.973275][ T4996] ? __x64_sys_mount+0x1c/0xc0
[ 261.978049][ T4996] do_syscall_64+0x4c/0xa0
[ 261.982650][ T4996] ? clear_bhb_loop+0x30/0x80
[ 261.987342][ T4996] ? clear_bhb_loop+0x30/0x80
[ 261.992219][ T4996] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 261.998138][ T4996] RIP: 0033:0x7f0531c31a8a
[ 262.002560][ T4996] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 262.022456][ T4996] RSP: 002b:00007ffef59bb608 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 262.030975][ T4996] RAX: ffffffffffffffda RBX: 00007ffef59bb690 RCX: 00007f0531c31a8a
[ 262.038963][ T4996] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffef59bb650
[ 262.047205][ T4996] RBP: 00002000000124c0 R08: 00007ffef59bb690 R09: 0000000000000000
[ 262.055193][ T4996] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 262.063350][ T4996] R13: 00007ffef59bb650 R14: 0000000000012616 R15: 0000200000000140
[ 262.071426][ T4996]
[ 262.074453][ T4994] CPU: 0 PID: 4994 Comm: syz.0.507 Not tainted syzkaller #0
[ 262.076003][ T4996] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 262.081763][ T4994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 262.081777][ T4994] Call Trace:
[ 262.095126][ T4996] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 262.105264][ T4994]
[ 262.105275][ T4994] dump_stack_lvl+0x188/0x250
[ 262.105304][ T4994] ? show_regs_print_info+0x20/0x20
[ 262.128472][ T4994] ? load_image+0x400/0x400
[ 262.133120][ T4994] sysfs_create_dir_ns+0x26a/0x290
[ 262.138556][ T4994] ? sysfs_warn_dup+0xa0/0xa0
[ 262.143262][ T4994] ? do_raw_spin_unlock+0x11d/0x230
[ 262.148499][ T4994] kobject_add_internal+0x6e0/0xd90
[ 262.153819][ T4994] kobject_init_and_add+0x128/0x190
[ 262.159218][ T4994] ? lockdep_softirqs_off+0x430/0x430
[ 262.164709][ T4994] ? kobject_add+0x230/0x230
[ 262.169546][ T4994] ? __init_swait_queue_head+0xa5/0x150
[ 262.175124][ T4994] gfs2_sys_fs_add+0x24f/0x4b0
[ 262.180024][ T4994] ? gfs2_recover_set+0x240/0x240
[ 262.185091][ T4994] ? snprintf+0xe5/0x140
[ 262.189368][ T4994] ? __free_pages+0x95/0x1a0
[ 262.193989][ T4994] ? vscnprintf+0x80/0x80
[ 262.198462][ T4994] gfs2_fill_super+0x120f/0x1f00
[ 262.203535][ T4994] ? gfs2_reconfigure+0xd30/0xd30
[ 262.208606][ T4994] ? sb_set_blocksize+0xa5/0xe0
[ 262.213847][ T4994] get_tree_bdev+0x3f1/0x610
[ 262.218463][ T4994] ? gfs2_reconfigure+0xd30/0xd30
[ 262.223522][ T4994] gfs2_get_tree+0x4d/0x1e0
[ 262.228139][ T4994] vfs_get_tree+0x88/0x270
[ 262.232625][ T4994] do_new_mount+0x24a/0xa40
[ 262.237258][ T4994] __se_sys_mount+0x2e3/0x3d0
[ 262.242582][ T4994] ? __x64_sys_mount+0xc0/0xc0
[ 262.247374][ T4994] ? lockdep_hardirqs_on+0x94/0x140
[ 262.252690][ T4994] ? __x64_sys_mount+0x1c/0xc0
[ 262.257490][ T4994] do_syscall_64+0x4c/0xa0
[ 262.261938][ T4994] ? clear_bhb_loop+0x30/0x80
[ 262.266887][ T4994] ? clear_bhb_loop+0x30/0x80
[ 262.272200][ T4994] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 262.278112][ T4994] RIP: 0033:0x7f269053aa8a
[ 262.282563][ T4994] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 262.302519][ T4994] RSP: 002b:00007ffcd912c638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 262.311282][ T4994] RAX: ffffffffffffffda RBX: 00007ffcd912c6c0 RCX: 00007f269053aa8a
[ 262.319385][ T4994] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffcd912c680
[ 262.327920][ T4994] RBP: 00002000000124c0 R08: 00007ffcd912c6c0 R09: 0000000000000000
[ 262.336136][ T4994] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 262.344241][ T4994] R13: 00007ffcd912c680 R14: 0000000000012616 R15: 0000200000000140
[ 262.352389][ T4994]
[ 262.356512][ T4994] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 262.369799][ T4994] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 262.390242][ T4297] CPU: 0 PID: 4297 Comm: syz-executor Not tainted syzkaller #0
[ 262.398024][ T4297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 262.408114][ T4297] Call Trace:
[ 262.411557][ T4297]
[ 262.414519][ T4297] dump_stack_lvl+0x188/0x250
[ 262.419226][ T4297] ? kobject_uevent_env+0x371/0x890
[ 262.424616][ T4297] ? show_regs_print_info+0x20/0x20
[ 262.429955][ T4297] ? load_image+0x400/0x400
[ 262.434588][ T4297] ? kobject_uevent_env+0x371/0x890
[ 262.439818][ T4297] ? lockref_put_or_lock+0x6e/0xb0
[ 262.445183][ T4297] gfs2_withdraw+0x1149/0x1490
[ 262.450005][ T4297] ? gfs2_lm+0x240/0x240
[ 262.454390][ T4297] ? rwsem_write_trylock+0x135/0x1c0
[ 262.459809][ T4297] ? up_write+0x1bb/0x420
[ 262.464318][ T4297] gfs2_log_flush+0x1e1a/0x2600
[ 262.469251][ T4297] ? gfs2_ail_empty_tr+0x2f0/0x2f0
[ 262.474418][ T4297] ? do_sync+0x955/0xc40
[ 262.478701][ T4297] ? kfree+0xef/0x2a0
[ 262.482726][ T4297] do_sync+0x9b0/0xc40
[ 262.486861][ T4297] ? slot_put+0x1e0/0x1e0
[ 262.491236][ T4297] ? __lock_acquire+0x7d10/0x7d10
[ 262.496541][ T4297] ? do_raw_spin_lock+0x128/0x2f0
[ 262.502217][ T4297] ? do_raw_spin_unlock+0x11d/0x230
[ 262.507649][ T4297] gfs2_quota_sync+0x32c/0x700
[ 262.512599][ T4297] gfs2_sync_fs+0x48/0xb0
[ 262.517051][ T4297] sync_filesystem+0xe6/0x220
[ 262.521890][ T4297] generic_shutdown_super+0x6b/0x300
[ 262.527306][ T4297] kill_block_super+0x7c/0xe0
[ 262.532120][ T4297] deactivate_locked_super+0x93/0xf0
[ 262.537436][ T4297] cleanup_mnt+0x42d/0x4e0
[ 262.541896][ T4297] ? lockdep_hardirqs_on+0x94/0x140
[ 262.547212][ T4297] task_work_run+0x125/0x1a0
[ 262.551839][ T4297] exit_to_user_mode_loop+0x10f/0x130
[ 262.557240][ T4297] exit_to_user_mode_prepare+0xee/0x180
[ 262.559944][ T4998] loop1: detected capacity change from 0 to 32768
[ 262.562904][ T4297] syscall_exit_to_user_mode+0x16/0x40
[ 262.575050][ T4297] do_syscall_64+0x58/0xa0
[ 262.579499][ T4297] ? clear_bhb_loop+0x30/0x80
[ 262.584212][ T4297] ? clear_bhb_loop+0x30/0x80
[ 262.589100][ T4297] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 262.595105][ T4297] RIP: 0033:0x7f5195806a57
[ 262.599638][ T4297] Code: a2 c7 05 9c fc 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 262.619457][ T4297] RSP: 002b:00007ffe24e88118 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 262.627891][ T4297] RAX: 0000000000000000 RBX: 00007f519589b048 RCX: 00007f5195806a57
[ 262.635963][ T4297] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe24e881d0
[ 262.644118][ T4297] RBP: 00007ffe24e881d0 R08: 00007ffe24e891d0 R09: 00000000ffffffff
[ 262.652207][ T4297] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe24e89260
[ 262.660305][ T4297] R13: 00007f519589b048 R14: 000000000002f88c R15: 00007ffe24e892a0
[ 262.668384][ T4297]
[ 262.673619][ T4997] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 262.676137][ T4297] ==================================================================
[ 262.681569][ T4997] CPU: 1 PID: 4997 Comm: syz.3.506 Not tainted syzkaller #0
[ 262.689358][ T4297] BUG: KASAN: use-after-free in qd_unlock+0x30/0x2d0
[ 262.696731][ T4997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 262.703592][ T4297] Read of size 8 at addr ffff888070417b10 by task syz-executor/4297
[ 262.713734][ T4997] Call Trace:
[ 262.713745][ T4997]
[ 262.721702][ T4297]
[ 262.730228][ T4997] dump_stack_lvl+0x188/0x250
[ 262.734929][ T4997] ? show_regs_print_info+0x20/0x20
[ 262.740147][ T4997] ? load_image+0x400/0x400
[ 262.744664][ T4997] sysfs_create_dir_ns+0x26a/0x290
[ 262.749787][ T4997] ? sysfs_warn_dup+0xa0/0xa0
[ 262.754473][ T4997] ? do_raw_spin_unlock+0x11d/0x230
[ 262.759682][ T4997] kobject_add_internal+0x6e0/0xd90
[ 262.764890][ T4997] kobject_init_and_add+0x128/0x190
[ 262.770189][ T4997] ? lockdep_softirqs_off+0x430/0x430
[ 262.775657][ T4997] ? kobject_add+0x230/0x230
[ 262.780376][ T4997] ? __init_swait_queue_head+0xa5/0x150
[ 262.785930][ T4997] gfs2_sys_fs_add+0x24f/0x4b0
[ 262.790702][ T4997] ? gfs2_recover_set+0x240/0x240
[ 262.795742][ T4997] ? snprintf+0xe5/0x140
[ 262.799991][ T4997] ? __free_pages+0x95/0x1a0
[ 262.804599][ T4997] ? vscnprintf+0x80/0x80
[ 262.809339][ T4997] gfs2_fill_super+0x120f/0x1f00
[ 262.814829][ T4997] ? gfs2_reconfigure+0xd30/0xd30
[ 262.819964][ T4997] ? sb_set_blocksize+0xa5/0xe0
[ 262.824820][ T4997] get_tree_bdev+0x3f1/0x610
[ 262.829506][ T4997] ? gfs2_reconfigure+0xd30/0xd30
[ 262.834540][ T4997] gfs2_get_tree+0x4d/0x1e0
[ 262.839138][ T4997] vfs_get_tree+0x88/0x270
[ 262.843572][ T4997] do_new_mount+0x24a/0xa40
[ 262.848219][ T4997] __se_sys_mount+0x2e3/0x3d0
[ 262.852905][ T4997] ? __x64_sys_mount+0xc0/0xc0
[ 262.857681][ T4997] ? lockdep_hardirqs_on+0x94/0x140
[ 262.862883][ T4997] ? __x64_sys_mount+0x1c/0xc0
[ 262.867831][ T4997] do_syscall_64+0x4c/0xa0
[ 262.872253][ T4997] ? clear_bhb_loop+0x30/0x80
[ 262.876933][ T4997] ? clear_bhb_loop+0x30/0x80
[ 262.881623][ T4997] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 262.887606][ T4997] RIP: 0033:0x7fe96f9d7a8a
[ 262.892126][ T4997] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 262.911926][ T4997] RSP: 002b:00007ffe741ea638 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 262.920368][ T4997] RAX: ffffffffffffffda RBX: 00007ffe741ea6c0 RCX: 00007fe96f9d7a8a
[ 262.928611][ T4997] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007ffe741ea680
[ 262.936827][ T4997] RBP: 00002000000124c0 R08: 00007ffe741ea6c0 R09: 0000000000000000
[ 262.944913][ T4997] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 262.952907][ T4997] R13: 00007ffe741ea680 R14: 0000000000012616 R15: 0000200000000140
[ 262.960999][ T4997]
[ 262.964037][ T4297] CPU: 0 PID: 4297 Comm: syz-executor Not tainted syzkaller #0
[ 262.965195][ T4997] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 262.971612][ T4297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 262.984734][ T4997] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 262.994890][ T4297] Call Trace:
[ 262.994902][ T4297]
[ 262.994912][ T4297] dump_stack_lvl+0x188/0x250
[ 263.012604][ T4297] ? show_regs_print_info+0x20/0x20
[ 263.017936][ T4297] ? _printk+0xda/0x130
[ 263.022120][ T4297] ? load_image+0x400/0x400
[ 263.026631][ T4297] ? _raw_spin_lock_irqsave+0xbc/0x100
[ 263.032179][ T4297] print_address_description+0x60/0x2d0
[ 263.037783][ T4297] ? qd_unlock+0x30/0x2d0
[ 263.042111][ T4297] kasan_report+0xdf/0x130
[ 263.046655][ T4297] ? qd_unlock+0x30/0x2d0
[ 263.051017][ T4297] kasan_check_range+0x235/0x290
[ 263.056100][ T4297] qd_unlock+0x30/0x2d0
[ 263.060297][ T4297] gfs2_quota_sync+0x5cf/0x700
[ 263.065138][ T4297] gfs2_sync_fs+0x48/0xb0
[ 263.069653][ T4297] sync_filesystem+0xe6/0x220
[ 263.074346][ T4297] generic_shutdown_super+0x6b/0x300
[ 263.079862][ T4297] kill_block_super+0x7c/0xe0
[ 263.084577][ T4297] deactivate_locked_super+0x93/0xf0
[ 263.089886][ T4297] cleanup_mnt+0x42d/0x4e0
[ 263.095252][ T4297] ? lockdep_hardirqs_on+0x94/0x140
[ 263.100673][ T4297] task_work_run+0x125/0x1a0
[ 263.105309][ T4297] exit_to_user_mode_loop+0x10f/0x130
[ 263.110734][ T4297] exit_to_user_mode_prepare+0xee/0x180
[ 263.116308][ T4297] syscall_exit_to_user_mode+0x16/0x40
[ 263.121860][ T4297] do_syscall_64+0x58/0xa0
[ 263.126401][ T4297] ? clear_bhb_loop+0x30/0x80
[ 263.131158][ T4297] ? clear_bhb_loop+0x30/0x80
[ 263.135851][ T4297] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 263.141756][ T4297] RIP: 0033:0x7f5195806a57
[ 263.146182][ T4297] Code: a2 c7 05 9c fc 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 263.166487][ T4297] RSP: 002b:00007ffe24e88118 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 263.175184][ T4297] RAX: 0000000000000000 RBX: 00007f519589b048 RCX: 00007f5195806a57
[ 263.183361][ T4297] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe24e881d0
[ 263.191348][ T4297] RBP: 00007ffe24e881d0 R08: 00007ffe24e891d0 R09: 00000000ffffffff
[ 263.199417][ T4297] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe24e89260
[ 263.207488][ T4297] R13: 00007f519589b048 R14: 000000000002f88c R15: 00007ffe24e892a0
[ 263.215803][ T4297]
[ 263.218917][ T4297]
[ 263.221242][ T4297] Allocated by task 4783:
[ 263.225586][ T4297] __kasan_slab_alloc+0x9c/0xd0
[ 263.230719][ T4297] slab_post_alloc_hook+0x4c/0x380
[ 263.235836][ T4297] kmem_cache_alloc+0x100/0x290
[ 263.240851][ T4297] qd_alloc+0x50/0x260
[ 263.244944][ T4297] gfs2_quota_init+0x74e/0xea0
[ 263.249835][ T4297] gfs2_make_fs_rw+0x414/0x580
[ 263.254604][ T4297] gfs2_fill_super+0x1837/0x1f00
[ 263.259570][ T4297] get_tree_bdev+0x3f1/0x610
[ 263.264752][ T4297] gfs2_get_tree+0x4d/0x1e0
[ 263.269357][ T4297] vfs_get_tree+0x88/0x270
[ 263.273791][ T4297] do_new_mount+0x24a/0xa40
[ 263.278295][ T4297] __se_sys_mount+0x2e3/0x3d0
[ 263.283156][ T4297] do_syscall_64+0x4c/0xa0
[ 263.287571][ T4297] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 263.293562][ T4297]
[ 263.295967][ T4297] Freed by task 4994:
[ 263.299944][ T4297] kasan_set_track+0x4b/0x70
[ 263.304548][ T4297] kasan_set_free_info+0x1f/0x40
[ 263.309554][ T4297] ____kasan_slab_free+0xd5/0x110
[ 263.314612][ T4297] slab_free_freelist_hook+0xea/0x170
[ 263.320009][ T4297] kmem_cache_free+0x8f/0x210
[ 263.324727][ T4297] rcu_core+0x9d2/0x1670
[ 263.329004][ T4297] handle_softirqs+0x339/0x830
[ 263.333772][ T4297] __irq_exit_rcu+0x13b/0x230
[ 263.338449][ T4297] irq_exit_rcu+0x5/0x20
[ 263.342688][ T4297] sysvec_apic_timer_interrupt+0xa0/0xc0
[ 263.348414][ T4297] asm_sysvec_apic_timer_interrupt+0x16/0x20
[ 263.354690][ T4297]
[ 263.357039][ T4297] Last potentially related work creation:
[ 263.362872][ T4297] kasan_save_stack+0x35/0x60
[ 263.367570][ T4297] kasan_record_aux_stack+0xb8/0x100
[ 263.373021][ T4297] call_rcu+0x189/0x950
[ 263.377198][ T4297] gfs2_quota_cleanup+0x43c/0x6a0
[ 263.382320][ T4297] gfs2_make_fs_ro+0x440/0x620
[ 263.387198][ T4297] gfs2_withdraw+0x610/0x1490
[ 263.391887][ T4297] gfs2_log_flush+0x1e1a/0x2600
[ 263.396741][ T4297] do_sync+0x9b0/0xc40
[ 263.400819][ T4297] gfs2_quota_sync+0x32c/0x700
[ 263.405711][ T4297] gfs2_sync_fs+0x48/0xb0
[ 263.410071][ T4297] sync_filesystem+0xe6/0x220
[ 263.414764][ T4297] generic_shutdown_super+0x6b/0x300
[ 263.420329][ T4297] kill_block_super+0x7c/0xe0
[ 263.425095][ T4297] deactivate_locked_super+0x93/0xf0
[ 263.430398][ T4297] cleanup_mnt+0x42d/0x4e0
[ 263.434909][ T4297] task_work_run+0x125/0x1a0
[ 263.439585][ T4297] exit_to_user_mode_loop+0x10f/0x130
[ 263.444977][ T4297] exit_to_user_mode_prepare+0xee/0x180
[ 263.450713][ T4297] syscall_exit_to_user_mode+0x16/0x40
[ 263.456771][ T4297] do_syscall_64+0x58/0xa0
[ 263.461423][ T4297] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 263.467734][ T4297]
[ 263.470063][ T4297] The buggy address belongs to the object at ffff888070417a80
[ 263.470063][ T4297] which belongs to the cache gfs2_quotad of size 272
[ 263.484728][ T4297] The buggy address is located 144 bytes inside of
[ 263.484728][ T4297] 272-byte region [ffff888070417a80, ffff888070417b90)
[ 263.498296][ T4297] The buggy address belongs to the page:
[ 263.503929][ T4297] page:ffffea0001c105c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888070417690 pfn:0x70417
[ 263.515478][ T4297] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
[ 263.523341][ T4297] raw: 00fff00000000200 0000000000000000 dead000000000122 ffff888146abf3c0
[ 263.531945][ T4297] raw: ffff888070417690 00000000800c0005 00000001ffffffff 0000000000000000
[ 263.540537][ T4297] page dumped because: kasan: bad access detected
[ 263.546959][ T4297] page_owner tracks the page as allocated
[ 263.552855][ T4297] page last allocated via order 0, migratetype Reclaimable, gfp_mask 0x112c50(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 4386, ts 82542472325, free_ts 81052641271
[ 263.572065][ T4297] get_page_from_freelist+0x1bbd/0x1ca0
[ 263.577623][ T4297] __alloc_pages+0x1ee/0x480
[ 263.582219][ T4297] new_slab+0xc0/0x4b0
[ 263.586544][ T4297] ___slab_alloc+0x80a/0xdd0
[ 263.591229][ T4297] kmem_cache_alloc+0x195/0x290
[ 263.596099][ T4297] qd_alloc+0x50/0x260
[ 263.600184][ T4297] gfs2_quota_init+0x74e/0xea0
[ 263.605047][ T4297] gfs2_make_fs_rw+0x414/0x580
[ 263.609841][ T4297] gfs2_fill_super+0x1837/0x1f00
[ 263.614803][ T4297] get_tree_bdev+0x3f1/0x610
[ 263.619505][ T4297] gfs2_get_tree+0x4d/0x1e0
[ 263.624016][ T4297] vfs_get_tree+0x88/0x270
[ 263.628436][ T4297] do_new_mount+0x24a/0xa40
[ 263.632944][ T4297] __se_sys_mount+0x2e3/0x3d0
[ 263.637695][ T4297] do_syscall_64+0x4c/0xa0
[ 263.642502][ T4297] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 263.648623][ T4297] page last free stack trace:
[ 263.653308][ T4297] free_unref_page_prepare+0x637/0x6c0
[ 263.658787][ T4297] free_unref_page+0x8f/0x2a0
[ 263.663590][ T4297] __unfreeze_partials+0x1a5/0x200
[ 263.668938][ T4297] put_cpu_partial+0x12d/0x190
[ 263.674369][ T4297] qlist_free_all+0x35/0x90
[ 263.678889][ T4297] kasan_quarantine_reduce+0x150/0x160
[ 263.684650][ T4297] __kasan_slab_alloc+0x2f/0xd0
[ 263.689706][ T4297] slab_post_alloc_hook+0x4c/0x380
[ 263.694834][ T4297] kmem_cache_alloc_trace+0x103/0x2a0
[ 263.700320][ T4297] netdevice_event+0x324/0x900
[ 263.705113][ T4297] raw_notifier_call_chain+0xcb/0x160
[ 263.710622][ T4297] unregister_netdevice_many+0x1049/0x19f0
[ 263.716492][ T4297] ip_tunnel_delete_nets+0x320/0x370
[ 263.721803][ T4297] cleanup_net+0x791/0xba0
[ 263.726433][ T4297] process_one_work+0x85f/0x1010
[ 263.731392][ T4297] worker_thread+0xaa6/0x1290
[ 263.736096][ T4297]
[ 263.738433][ T4297] Memory state around the buggy address:
[ 263.744156][ T4297] ffff888070417a00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 263.752473][ T4297] ffff888070417a80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 263.760918][ T4297] >ffff888070417b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 263.769082][ T4297] ^
[ 263.773667][ T4297] ffff888070417b80: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 263.781828][ T4297] ffff888070417c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 263.790062][ T4297] ==================================================================
[ 263.798142][ T4297] Disabling lock debugging due to kernel taint
[ 263.812194][ T4998] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 263.819820][ T4998] CPU: 0 PID: 4998 Comm: syz.1.510 Tainted: G B syzkaller #0
[ 263.824000][ T4297] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 263.828861][ T4998] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 263.846378][ T4998] Call Trace:
[ 263.849748][ T4998]
[ 263.852684][ T4998] dump_stack_lvl+0x188/0x250
[ 263.857373][ T4998] ? show_regs_print_info+0x20/0x20
[ 263.862722][ T4998] ? load_image+0x400/0x400
[ 263.867320][ T4998] sysfs_create_dir_ns+0x26a/0x290
[ 263.872447][ T4998] ? sysfs_warn_dup+0xa0/0xa0
[ 263.877217][ T4998] ? do_raw_spin_unlock+0x11d/0x230
[ 263.882422][ T4998] kobject_add_internal+0x6e0/0xd90
[ 263.887625][ T4998] kobject_init_and_add+0x128/0x190
[ 263.892830][ T4998] ? lockdep_softirqs_off+0x430/0x430
[ 263.898250][ T4998] ? kobject_add+0x230/0x230
[ 263.902935][ T4998] ? __init_swait_queue_head+0xa5/0x150
[ 263.908574][ T4998] gfs2_sys_fs_add+0x24f/0x4b0
[ 263.913467][ T4998] ? gfs2_recover_set+0x240/0x240
[ 263.918567][ T4998] ? snprintf+0xe5/0x140
[ 263.923084][ T4998] ? __free_pages+0x95/0x1a0
[ 263.927703][ T4998] ? vscnprintf+0x80/0x80
[ 263.932299][ T4998] gfs2_fill_super+0x120f/0x1f00
[ 263.937263][ T4998] ? gfs2_reconfigure+0xd30/0xd30
[ 263.942408][ T4998] ? sb_set_blocksize+0xa5/0xe0
[ 263.947533][ T4998] get_tree_bdev+0x3f1/0x610
[ 263.952229][ T4998] ? gfs2_reconfigure+0xd30/0xd30
[ 263.957279][ T4998] gfs2_get_tree+0x4d/0x1e0
[ 263.961884][ T4998] vfs_get_tree+0x88/0x270
[ 263.966397][ T4998] do_new_mount+0x24a/0xa40
[ 263.971048][ T4998] __se_sys_mount+0x2e3/0x3d0
[ 263.975735][ T4998] ? __x64_sys_mount+0xc0/0xc0
[ 263.980501][ T4998] ? rcu_is_watching+0x11/0xa0
[ 263.985308][ T4998] ? __x64_sys_mount+0x1c/0xc0
[ 263.990075][ T4998] do_syscall_64+0x4c/0xa0
[ 263.994585][ T4998] ? clear_bhb_loop+0x30/0x80
[ 263.999663][ T4998] ? clear_bhb_loop+0x30/0x80
[ 264.004371][ T4998] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 264.010276][ T4998] RIP: 0033:0x7f621d05da8a
[ 264.014792][ T4998] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 264.034928][ T4998] RSP: 002b:00007fff75434ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 264.043455][ T4998] RAX: ffffffffffffffda RBX: 00007fff75434f80 RCX: 00007f621d05da8a
[ 264.051546][ T4998] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fff75434f40
[ 264.059615][ T4998] RBP: 00002000000124c0 R08: 00007fff75434f80 R09: 0000000000000000
[ 264.067763][ T4998] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 264.075827][ T4998] R13: 00007fff75434f40 R14: 0000000000012616 R15: 0000200000000140
[ 264.083893][ T4998]
[ 264.087103][ T4297] CPU: 1 PID: 4297 Comm: syz-executor Tainted: G B syzkaller #0
[ 264.087262][ T4998] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 264.096430][ T4297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 264.096452][ T4297] Call Trace:
[ 264.096460][ T4297]
[ 264.096469][ T4297] dump_stack_lvl+0x188/0x250
[ 264.096497][ T4297] ? show_regs_print_info+0x20/0x20
[ 264.109795][ T4998] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 264.119907][ T4297] ? load_image+0x400/0x400
[ 264.119933][ T4297] panic+0x2e5/0x810
[ 264.151096][ T4297] ? asm_sysvec_apic_timer_interrupt+0x16/0x20
[ 264.157453][ T4297] ? bpf_jit_dump+0xd0/0xd0
[ 264.162099][ T4297] ? _raw_spin_unlock_irqrestore+0x10d/0x120
[ 264.168181][ T4297] ? _raw_spin_unlock+0x40/0x40
[ 264.173147][ T4297] ? qd_unlock+0x30/0x2d0
[ 264.177478][ T4297] check_panic_on_warn+0x80/0xa0
[ 264.182592][ T4297] ? qd_unlock+0x30/0x2d0
[ 264.187006][ T4297] end_report+0x6d/0xf0
[ 264.191186][ T4297] kasan_report+0x102/0x130
[ 264.195784][ T4297] ? qd_unlock+0x30/0x2d0
[ 264.200196][ T4297] kasan_check_range+0x235/0x290
[ 264.205142][ T4297] qd_unlock+0x30/0x2d0
[ 264.209298][ T4297] gfs2_quota_sync+0x5cf/0x700
[ 264.214144][ T4297] gfs2_sync_fs+0x48/0xb0
[ 264.218463][ T4297] sync_filesystem+0xe6/0x220
[ 264.223140][ T4297] generic_shutdown_super+0x6b/0x300
[ 264.228508][ T4297] kill_block_super+0x7c/0xe0
[ 264.233274][ T4297] deactivate_locked_super+0x93/0xf0
[ 264.238554][ T4297] cleanup_mnt+0x42d/0x4e0
[ 264.242977][ T4297] ? lockdep_hardirqs_on+0x94/0x140
[ 264.248196][ T4297] task_work_run+0x125/0x1a0
[ 264.252882][ T4297] exit_to_user_mode_loop+0x10f/0x130
[ 264.258532][ T4297] exit_to_user_mode_prepare+0xee/0x180
[ 264.264119][ T4297] syscall_exit_to_user_mode+0x16/0x40
[ 264.269668][ T4297] do_syscall_64+0x58/0xa0
[ 264.274085][ T4297] ? clear_bhb_loop+0x30/0x80
[ 264.278762][ T4297] ? clear_bhb_loop+0x30/0x80
[ 264.283455][ T4297] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 264.289462][ T4297] RIP: 0033:0x7f5195806a57
[ 264.294014][ T4297] Code: a2 c7 05 9c fc 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 264.313706][ T4297] RSP: 002b:00007ffe24e88118 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 264.322210][ T4297] RAX: 0000000000000000 RBX: 00007f519589b048 RCX: 00007f5195806a57
[ 264.330283][ T4297] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe24e881d0
[ 264.338396][ T4297] RBP: 00007ffe24e881d0 R08: 00007ffe24e891d0 R09: 00000000ffffffff
[ 264.346600][ T4297] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe24e89260
[ 264.354747][ T4297] R13: 00007f519589b048 R14: 000000000002f88c R15: 00007ffe24e892a0
[ 264.362940][ T4297]
[ 264.366224][ T4297] Kernel Offset: disabled
[ 264.370561][ T4297] Rebooting in 86400 seconds..