ecover_set+0x240/0x240
[ 238.034760][ T6560] ? snprintf+0xe5/0x140
[ 238.039012][ T6560] ? __free_pages+0x95/0x1a0
[ 238.043753][ T6560] ? vscnprintf+0x80/0x80
[ 238.048113][ T6560] gfs2_fill_super+0x11ed/0x1ea0
[ 238.053264][ T6560] ? gfs2_reconfigure+0xd80/0xd80
[ 238.058336][ T6560] ? sb_set_blocksize+0xa5/0xe0
[ 238.063224][ T6560] get_tree_bdev+0x3e6/0x610
[ 238.067844][ T6560] ? gfs2_reconfigure+0xd80/0xd80
[ 238.072981][ T6560] gfs2_get_tree+0x4d/0x1e0
[ 238.077796][ T6560] vfs_get_tree+0x88/0x270
[ 238.082324][ T6560] do_new_mount+0x247/0xa40
[ 238.087223][ T6560] __se_sys_mount+0x2e3/0x3d0
[ 238.091933][ T6560] ? __x64_sys_mount+0xc0/0xc0
[ 238.096715][ T6560] ? lockdep_hardirqs_on+0x94/0x140
[ 238.101920][ T6560] ? __x64_sys_mount+0x1c/0xc0
[ 238.106704][ T6560] do_syscall_64+0x4c/0xa0
[ 238.111315][ T6560] ? clear_bhb_loop+0x30/0x80
[ 238.116273][ T6560] ? clear_bhb_loop+0x30/0x80
[ 238.120969][ T6560] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.126875][ T6560] RIP: 0033:0x7f578030a60a
[ 238.131319][ T6560] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 238.151066][ T6560] RSP: 002b:00007f577f96ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.159763][ T6560] RAX: ffffffffffffffda RBX: 00007f577f96cee0 RCX: 00007f578030a60a
[ 238.168121][ T6560] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f577f96cea0
[ 238.176105][ T6560] RBP: 0000200000000400 R08: 00007f577f96cee0 R09: 0000000000000000
[ 238.184088][ T6560] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 238.189698][ T6556] loop4: detected capacity change from 0 to 32768
[ 238.192266][ T6560] R13: 00007f577f96cea0 R14: 00000000000125ed R15: 0000200000000640
[ 238.192293][ T6560]
[ 238.193122][ T6560] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.216933][ T6566] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 238.223515][ T6560] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.230964][ T6566] CPU: 0 PID: 6566 Comm: syz.1.425 Not tainted syzkaller #0
[ 238.243960][ T6564] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 238.244653][ T6566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 238.262057][ T6566] Call Trace:
[ 238.265331][ T6566]
[ 238.268339][ T6566] dump_stack_lvl+0x188/0x250
[ 238.273023][ T6566] ? show_regs_print_info+0x20/0x20
[ 238.278221][ T6566] ? load_image+0x410/0x410
[ 238.282759][ T6566] sysfs_create_dir_ns+0x26a/0x290
[ 238.287962][ T6566] ? sysfs_warn_dup+0xa0/0xa0
[ 238.292632][ T6566] ? do_raw_spin_unlock+0x11d/0x230
[ 238.297998][ T6566] kobject_add_internal+0x5ba/0xcd0
[ 238.303211][ T6566] kobject_init_and_add+0x128/0x190
[ 238.308415][ T6566] ? lockdep_softirqs_off+0x430/0x430
[ 238.313872][ T6566] ? kobject_add+0x230/0x230
[ 238.318472][ T6566] ? __init_swait_queue_head+0xa4/0x140
[ 238.324020][ T6566] gfs2_sys_fs_add+0x24f/0x4b0
[ 238.328793][ T6566] ? gfs2_recover_set+0x240/0x240
[ 238.333808][ T6566] ? snprintf+0xe5/0x140
[ 238.338077][ T6566] ? __free_pages+0x95/0x1a0
[ 238.342674][ T6566] ? vscnprintf+0x80/0x80
[ 238.347091][ T6566] gfs2_fill_super+0x11ed/0x1ea0
[ 238.352033][ T6566] ? gfs2_reconfigure+0xd80/0xd80
[ 238.357153][ T6566] ? sb_set_blocksize+0xa5/0xe0
[ 238.362166][ T6566] get_tree_bdev+0x3e6/0x610
[ 238.366771][ T6566] ? gfs2_reconfigure+0xd80/0xd80
[ 238.371815][ T6566] gfs2_get_tree+0x4d/0x1e0
[ 238.376314][ T6566] vfs_get_tree+0x88/0x270
[ 238.380822][ T6566] do_new_mount+0x247/0xa40
[ 238.385417][ T6566] __se_sys_mount+0x2e3/0x3d0
[ 238.390096][ T6566] ? __x64_sys_mount+0xc0/0xc0
[ 238.394855][ T6566] ? lockdep_hardirqs_on+0x94/0x140
[ 238.400040][ T6566] ? __x64_sys_mount+0x1c/0xc0
[ 238.404793][ T6566] do_syscall_64+0x4c/0xa0
[ 238.409198][ T6566] ? clear_bhb_loop+0x30/0x80
[ 238.413862][ T6566] ? clear_bhb_loop+0x30/0x80
[ 238.418527][ T6566] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.424424][ T6566] RIP: 0033:0x7f6a34f1560a
[ 238.428919][ T6566] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 238.448522][ T6566] RSP: 002b:00007f6a34577e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.456935][ T6566] RAX: ffffffffffffffda RBX: 00007f6a34577ee0 RCX: 00007f6a34f1560a
[ 238.464896][ T6566] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f6a34577ea0
[ 238.472955][ T6566] RBP: 0000200000000400 R08: 00007f6a34577ee0 R09: 0000000000000000
[ 238.480915][ T6566] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 238.488880][ T6566] R13: 00007f6a34577ea0 R14: 00000000000125ed R15: 0000200000000640
[ 238.496883][ T6566]
[ 238.499894][ T6564] CPU: 1 PID: 6564 Comm: syz.3.424 Not tainted syzkaller #0
[ 238.499955][ T6566] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.507189][ T6564] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 238.507200][ T6564] Call Trace:
[ 238.507206][ T6564]
[ 238.507213][ T6564] dump_stack_lvl+0x188/0x250
[ 238.520486][ T6566] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.530508][ T6564] ? show_regs_print_info+0x20/0x20
[ 238.530530][ T6564] ? load_image+0x410/0x410
[ 238.530556][ T6564] sysfs_create_dir_ns+0x26a/0x290
[ 238.562786][ T6564] ? sysfs_warn_dup+0xa0/0xa0
[ 238.567472][ T6564] ? do_raw_spin_unlock+0x11d/0x230
[ 238.572683][ T6564] kobject_add_internal+0x5ba/0xcd0
[ 238.577889][ T6564] kobject_init_and_add+0x128/0x190
[ 238.583178][ T6564] ? lockdep_softirqs_off+0x430/0x430
[ 238.588555][ T6564] ? kobject_add+0x230/0x230
[ 238.593155][ T6564] ? __init_swait_queue_head+0xa4/0x140
[ 238.598726][ T6564] gfs2_sys_fs_add+0x24f/0x4b0
[ 238.603523][ T6564] ? gfs2_recover_set+0x240/0x240
[ 238.608648][ T6564] ? snprintf+0xe5/0x140
[ 238.610495][ T6556] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 238.612937][ T6564] ? __free_pages+0x95/0x1a0
[ 238.612963][ T6564] ? vscnprintf+0x80/0x80
[ 238.612992][ T6564] gfs2_fill_super+0x11ed/0x1ea0
[ 238.634279][ T6564] ? gfs2_reconfigure+0xd80/0xd80
[ 238.639373][ T6564] ? sb_set_blocksize+0xa5/0xe0
[ 238.644242][ T6564] get_tree_bdev+0x3e6/0x610
[ 238.648938][ T6564] ? gfs2_reconfigure+0xd80/0xd80
[ 238.654108][ T6564] gfs2_get_tree+0x4d/0x1e0
[ 238.658717][ T6564] vfs_get_tree+0x88/0x270
[ 238.663258][ T6564] do_new_mount+0x247/0xa40
[ 238.667956][ T6564] __se_sys_mount+0x2e3/0x3d0
[ 238.672667][ T6564] ? __x64_sys_mount+0xc0/0xc0
[ 238.677478][ T6564] ? lockdep_hardirqs_on+0x94/0x140
[ 238.682675][ T6564] ? __x64_sys_mount+0x1c/0xc0
[ 238.687452][ T6564] do_syscall_64+0x4c/0xa0
[ 238.691882][ T6564] ? clear_bhb_loop+0x30/0x80
[ 238.696660][ T6564] ? clear_bhb_loop+0x30/0x80
[ 238.701438][ T6564] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.707350][ T6564] RIP: 0033:0x7f21c259360a
[ 238.711854][ T6564] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 238.731653][ T6564] RSP: 002b:00007f21c1bf5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.740108][ T6564] RAX: ffffffffffffffda RBX: 00007f21c1bf5ee0 RCX: 00007f21c259360a
[ 238.748088][ T6564] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f21c1bf5ea0
[ 238.756065][ T6564] RBP: 0000200000000400 R08: 00007f21c1bf5ee0 R09: 0000000000000000
[ 238.764051][ T6564] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 238.772037][ T6564] R13: 00007f21c1bf5ea0 R14: 00000000000125ed R15: 0000200000000640
[ 238.780131][ T6564]
[ 238.784048][ T6564] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.797957][ T6564] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.810190][ T6556] CPU: 1 PID: 6556 Comm: syz.4.422 Not tainted syzkaller #0
[ 238.817519][ T6556] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 238.827598][ T6556] Call Trace:
[ 238.830986][ T6556]
[ 238.833918][ T6556] dump_stack_lvl+0x188/0x250
[ 238.838609][ T6556] ? show_regs_print_info+0x20/0x20
[ 238.844032][ T6556] ? load_image+0x410/0x410
[ 238.848554][ T6556] sysfs_create_dir_ns+0x26a/0x290
[ 238.853687][ T6556] ? sysfs_warn_dup+0xa0/0xa0
[ 238.858370][ T6556] ? do_raw_spin_unlock+0x11d/0x230
[ 238.863583][ T6556] kobject_add_internal+0x5ba/0xcd0
[ 238.868808][ T6556] kobject_init_and_add+0x128/0x190
[ 238.874109][ T6556] ? lockdep_softirqs_off+0x430/0x430
[ 238.879547][ T6556] ? kobject_add+0x230/0x230
[ 238.884159][ T6556] ? __init_swait_queue_head+0xa4/0x140
[ 238.889727][ T6556] gfs2_sys_fs_add+0x24f/0x4b0
[ 238.894508][ T6556] ? gfs2_recover_set+0x240/0x240
[ 238.899549][ T6556] ? snprintf+0xe5/0x140
[ 238.903911][ T6556] ? __free_pages+0x95/0x1a0
[ 238.908606][ T6556] ? vscnprintf+0x80/0x80
[ 238.912968][ T6556] gfs2_fill_super+0x11ed/0x1ea0
[ 238.917931][ T6556] ? gfs2_reconfigure+0xd80/0xd80
[ 238.922987][ T6556] ? sb_set_blocksize+0xa5/0xe0
[ 238.927859][ T6556] get_tree_bdev+0x3e6/0x610
[ 238.932466][ T6556] ? gfs2_reconfigure+0xd80/0xd80
[ 238.937505][ T6556] gfs2_get_tree+0x4d/0x1e0
[ 238.942144][ T6556] vfs_get_tree+0x88/0x270
[ 238.946586][ T6556] do_new_mount+0x247/0xa40
[ 238.951127][ T6556] __se_sys_mount+0x2e3/0x3d0
[ 238.955824][ T6556] ? __x64_sys_mount+0xc0/0xc0
[ 238.960620][ T6556] ? lockdep_hardirqs_on+0x94/0x140
[ 238.965949][ T6556] ? __x64_sys_mount+0x1c/0xc0
[ 238.970939][ T6556] do_syscall_64+0x4c/0xa0
[ 238.975363][ T6556] ? clear_bhb_loop+0x30/0x80
[ 238.980053][ T6556] ? clear_bhb_loop+0x30/0x80
[ 238.984741][ T6556] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.990643][ T6556] RIP: 0033:0x7fd7912ad60a
[ 238.995063][ T6556] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 238.999985][ T6568] loop0: detected capacity change from 0 to 32768
[ 239.014669][ T6556] RSP: 002b:00007fd7908cde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 239.014694][ T6556] RAX: ffffffffffffffda RBX: 00007fd7908cdee0 RCX: 00007fd7912ad60a
[ 239.014704][ T6556] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fd7908cdea0
[ 239.014714][ T6556] RBP: 0000200000000400 R08: 00007fd7908cdee0 R09: 0000000000000000
[ 239.014724][ T6556] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 239.014733][ T6556] R13: 00007fd7908cdea0 R14: 00000000000125ed R15: 0000200000000640
[ 239.014756][ T6556]
[ 239.043361][ T6556] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 239.095636][ T6568] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 239.103828][ T6568] CPU: 0 PID: 6568 Comm: syz.0.426 Not tainted syzkaller #0
[ 239.111129][ T6568] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 239.121280][ T6568] Call Trace:
[ 239.124591][ T6568]
[ 239.127528][ T6568] dump_stack_lvl+0x188/0x250
[ 239.132305][ T6568] ? show_regs_print_info+0x20/0x20
[ 239.137505][ T6568] ? load_image+0x410/0x410
[ 239.142020][ T6568] sysfs_create_dir_ns+0x26a/0x290
[ 239.147229][ T6568] ? sysfs_warn_dup+0xa0/0xa0
[ 239.151918][ T6568] ? do_raw_spin_unlock+0x11d/0x230
[ 239.157127][ T6568] kobject_add_internal+0x5ba/0xcd0
[ 239.162424][ T6568] kobject_init_and_add+0x128/0x190
[ 239.167730][ T6568] ? lockdep_softirqs_off+0x430/0x430
[ 239.173114][ T6568] ? kobject_add+0x230/0x230
[ 239.177804][ T6568] ? __init_swait_queue_head+0xa4/0x140
[ 239.183361][ T6568] gfs2_sys_fs_add+0x24f/0x4b0
[ 239.188169][ T6568] ? gfs2_recover_set+0x240/0x240
[ 239.193188][ T6568] ? snprintf+0xe5/0x140
[ 239.197435][ T6568] ? __free_pages+0x95/0x1a0
[ 239.202205][ T6568] ? vscnprintf+0x80/0x80
[ 239.206548][ T6568] gfs2_fill_super+0x11ed/0x1ea0
[ 239.211697][ T6568] ? gfs2_reconfigure+0xd80/0xd80
[ 239.216746][ T6568] ? sb_set_blocksize+0xa5/0xe0
[ 239.221620][ T6568] get_tree_bdev+0x3e6/0x610
[ 239.226322][ T6568] ? gfs2_reconfigure+0xd80/0xd80
[ 239.231363][ T6568] gfs2_get_tree+0x4d/0x1e0
[ 239.236003][ T6568] vfs_get_tree+0x88/0x270
[ 239.240440][ T6568] do_new_mount+0x247/0xa40
[ 239.245021][ T6568] __se_sys_mount+0x2e3/0x3d0
[ 239.249723][ T6568] ? __x64_sys_mount+0xc0/0xc0
[ 239.254516][ T6568] ? lockdep_hardirqs_on+0x94/0x140
[ 239.259733][ T6568] ? __x64_sys_mount+0x1c/0xc0
[ 239.264524][ T6568] do_syscall_64+0x4c/0xa0
[ 239.268969][ T6568] ? clear_bhb_loop+0x30/0x80
[ 239.273746][ T6568] ? clear_bhb_loop+0x30/0x80
[ 239.278436][ T6568] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 239.284340][ T6568] RIP: 0033:0x7f4fcb6ad60a
[ 239.288772][ T6568] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 239.308570][ T6568] RSP: 002b:00007f4fcad0fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 239.316999][ T6568] RAX: ffffffffffffffda RBX: 00007f4fcad0fee0 RCX: 00007f4fcb6ad60a
[ 239.324983][ T6568] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4fcad0fea0
[ 239.333021][ T6568] RBP: 0000200000000400 R08: 00007f4fcad0fee0 R09: 0000000000000000
[ 239.341005][ T6568] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 239.349014][ T6568] R13: 00007f4fcad0fea0 R14: 00000000000125ed R15: 0000200000000640
[ 239.357012][ T6568]
[ 239.361185][ T6568] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 239.374695][ T6568] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 239.383843][ T6556] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 239.758248][ T6573] loop1: detected capacity change from 0 to 32768
[ 240.059348][ T6578] loop5: detected capacity change from 0 to 32768
[ 240.092311][ T6570] loop3: detected capacity change from 0 to 32768
[ 240.119100][ T6573] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.127417][ T6573] CPU: 0 PID: 6573 Comm: syz.1.428 Not tainted syzkaller #0
[ 240.134811][ T6573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 240.144906][ T6573] Call Trace:
[ 240.148203][ T6573]
[ 240.151136][ T6573] dump_stack_lvl+0x188/0x250
[ 240.155822][ T6573] ? show_regs_print_info+0x20/0x20
[ 240.161122][ T6573] ? load_image+0x410/0x410
[ 240.165641][ T6573] sysfs_create_dir_ns+0x26a/0x290
[ 240.170758][ T6573] ? sysfs_warn_dup+0xa0/0xa0
[ 240.175446][ T6573] ? do_raw_spin_unlock+0x11d/0x230
[ 240.180659][ T6573] kobject_add_internal+0x5ba/0xcd0
[ 240.185882][ T6573] kobject_init_and_add+0x128/0x190
[ 240.191201][ T6573] ? lockdep_softirqs_off+0x430/0x430
[ 240.196620][ T6573] ? kobject_add+0x230/0x230
[ 240.201236][ T6573] ? __init_swait_queue_head+0xa4/0x140
[ 240.206883][ T6573] gfs2_sys_fs_add+0x24f/0x4b0
[ 240.211847][ T6573] ? gfs2_recover_set+0x240/0x240
[ 240.217020][ T6573] ? snprintf+0xe5/0x140
[ 240.221294][ T6573] ? __free_pages+0x95/0x1a0
[ 240.225913][ T6573] ? vscnprintf+0x80/0x80
[ 240.230474][ T6573] gfs2_fill_super+0x11ed/0x1ea0
[ 240.235456][ T6573] ? gfs2_reconfigure+0xd80/0xd80
[ 240.240543][ T6573] ? sb_set_blocksize+0xa5/0xe0
[ 240.245499][ T6573] get_tree_bdev+0x3e6/0x610
[ 240.250138][ T6573] ? gfs2_reconfigure+0xd80/0xd80
[ 240.255183][ T6573] gfs2_get_tree+0x4d/0x1e0
[ 240.259799][ T6573] vfs_get_tree+0x88/0x270
[ 240.264231][ T6573] do_new_mount+0x247/0xa40
[ 240.268769][ T6573] __se_sys_mount+0x2e3/0x3d0
[ 240.273607][ T6573] ? __x64_sys_mount+0xc0/0xc0
[ 240.278490][ T6573] ? lockdep_hardirqs_on+0x94/0x140
[ 240.283794][ T6573] ? __x64_sys_mount+0x1c/0xc0
[ 240.288708][ T6573] do_syscall_64+0x4c/0xa0
[ 240.293150][ T6573] ? clear_bhb_loop+0x30/0x80
[ 240.297848][ T6573] ? clear_bhb_loop+0x30/0x80
[ 240.302557][ T6573] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 240.308492][ T6573] RIP: 0033:0x7f6a34f1560a
[ 240.312989][ T6573] 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
[ 240.333021][ T6573] RSP: 002b:00007f6a34577e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.341535][ T6573] RAX: ffffffffffffffda RBX: 00007f6a34577ee0 RCX: 00007f6a34f1560a
[ 240.349498][ T6573] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f6a34577ea0
[ 240.357547][ T6573] RBP: 0000200000000400 R08: 00007f6a34577ee0 R09: 0000000000000000
[ 240.365596][ T6573] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 240.373570][ T6573] R13: 00007f6a34577ea0 R14: 00000000000125ed R15: 0000200000000640
[ 240.381549][ T6573]
[ 240.387408][ T6573] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.395524][ T6578] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.402210][ T6573] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 240.408472][ T6578] CPU: 1 PID: 6578 Comm: syz.5.430 Not tainted syzkaller #0
[ 240.422458][ T6578] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 240.432612][ T6578] Call Trace:
[ 240.435909][ T6578]
[ 240.438951][ T6578] dump_stack_lvl+0x188/0x250
[ 240.443656][ T6578] ? show_regs_print_info+0x20/0x20
[ 240.449188][ T6578] ? load_image+0x410/0x410
[ 240.453820][ T6578] sysfs_create_dir_ns+0x26a/0x290
[ 240.458952][ T6578] ? sysfs_warn_dup+0xa0/0xa0
[ 240.463741][ T6578] ? do_raw_spin_unlock+0x11d/0x230
[ 240.468966][ T6578] kobject_add_internal+0x5ba/0xcd0
[ 240.474179][ T6578] kobject_init_and_add+0x128/0x190
[ 240.479389][ T6578] ? lockdep_softirqs_off+0x430/0x430
[ 240.484797][ T6578] ? kobject_add+0x230/0x230
[ 240.489402][ T6578] ? __init_swait_queue_head+0xa4/0x140
[ 240.494962][ T6578] gfs2_sys_fs_add+0x24f/0x4b0
[ 240.500050][ T6578] ? gfs2_recover_set+0x240/0x240
[ 240.505212][ T6578] ? snprintf+0xe5/0x140
[ 240.509472][ T6578] ? __free_pages+0x95/0x1a0
[ 240.511309][ T6570] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.514270][ T6578] ? vscnprintf+0x80/0x80
[ 240.514303][ T6578] gfs2_fill_super+0x11ed/0x1ea0
[ 240.514330][ T6578] ? gfs2_reconfigure+0xd80/0xd80
[ 240.514358][ T6578] ? sb_set_blocksize+0xa5/0xe0
[ 240.514378][ T6578] get_tree_bdev+0x3e6/0x610
[ 240.514396][ T6578] ? gfs2_reconfigure+0xd80/0xd80
[ 240.514415][ T6578] gfs2_get_tree+0x4d/0x1e0
[ 240.514434][ T6578] vfs_get_tree+0x88/0x270
[ 240.560016][ T6578] do_new_mount+0x247/0xa40
[ 240.564728][ T6578] __se_sys_mount+0x2e3/0x3d0
[ 240.569419][ T6578] ? __x64_sys_mount+0xc0/0xc0
[ 240.574190][ T6578] ? lockdep_hardirqs_on+0x94/0x140
[ 240.579386][ T6578] ? __x64_sys_mount+0x1c/0xc0
[ 240.584143][ T6578] do_syscall_64+0x4c/0xa0
[ 240.588551][ T6578] ? clear_bhb_loop+0x30/0x80
[ 240.593248][ T6578] ? clear_bhb_loop+0x30/0x80
[ 240.598122][ T6578] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 240.604060][ T6578] RIP: 0033:0x7f578030a60a
[ 240.608562][ T6578] 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
[ 240.628535][ T6578] RSP: 002b:00007f577f96ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.637034][ T6578] RAX: ffffffffffffffda RBX: 00007f577f96cee0 RCX: 00007f578030a60a
[ 240.645008][ T6578] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f577f96cea0
[ 240.652977][ T6578] RBP: 0000200000000400 R08: 00007f577f96cee0 R09: 0000000000000000
[ 240.661005][ T6578] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 240.669064][ T6578] R13: 00007f577f96cea0 R14: 00000000000125ed R15: 0000200000000640
[ 240.677064][ T6578]
[ 240.680192][ T6570] CPU: 0 PID: 6570 Comm: syz.3.427 Not tainted syzkaller #0
[ 240.681163][ T6578] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.687501][ T6570] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 240.687514][ T6570] Call Trace:
[ 240.687522][ T6570]
[ 240.687529][ T6570] dump_stack_lvl+0x188/0x250
[ 240.700662][ T6578] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 240.710896][ T6570] ? show_regs_print_info+0x20/0x20
[ 240.710920][ T6570] ? load_image+0x410/0x410
[ 240.739026][ T6570] sysfs_create_dir_ns+0x26a/0x290
[ 240.744278][ T6570] ? sysfs_warn_dup+0xa0/0xa0
[ 240.749080][ T6570] ? do_raw_spin_unlock+0x11d/0x230
[ 240.754494][ T6570] kobject_add_internal+0x5ba/0xcd0
[ 240.759803][ T6570] kobject_init_and_add+0x128/0x190
[ 240.765026][ T6570] ? lockdep_softirqs_off+0x430/0x430
[ 240.770425][ T6570] ? kobject_add+0x230/0x230
[ 240.775275][ T6570] ? __init_swait_queue_head+0xa4/0x140
[ 240.780876][ T6570] gfs2_sys_fs_add+0x24f/0x4b0
[ 240.785677][ T6570] ? gfs2_recover_set+0x240/0x240
[ 240.790812][ T6570] ? snprintf+0xe5/0x140
[ 240.795069][ T6570] ? __free_pages+0x95/0x1a0
[ 240.799806][ T6570] ? vscnprintf+0x80/0x80
[ 240.805219][ T6570] gfs2_fill_super+0x11ed/0x1ea0
[ 240.810404][ T6570] ? gfs2_reconfigure+0xd80/0xd80
[ 240.815488][ T6570] ? sb_set_blocksize+0xa5/0xe0
[ 240.820628][ T6570] get_tree_bdev+0x3e6/0x610
[ 240.825245][ T6570] ? gfs2_reconfigure+0xd80/0xd80
[ 240.830340][ T6570] gfs2_get_tree+0x4d/0x1e0
[ 240.834879][ T6570] vfs_get_tree+0x88/0x270
[ 240.839521][ T6570] do_new_mount+0x247/0xa40
[ 240.844126][ T6570] __se_sys_mount+0x2e3/0x3d0
[ 240.848826][ T6570] ? __x64_sys_mount+0xc0/0xc0
[ 240.853969][ T6570] ? lockdep_hardirqs_on+0x94/0x140
[ 240.859273][ T6570] ? __x64_sys_mount+0x1c/0xc0
[ 240.864065][ T6570] do_syscall_64+0x4c/0xa0
[ 240.868625][ T6570] ? clear_bhb_loop+0x30/0x80
[ 240.873324][ T6570] ? clear_bhb_loop+0x30/0x80
[ 240.878066][ T6570] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 240.883970][ T6570] RIP: 0033:0x7f21c259360a
[ 240.888392][ T6570] 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
[ 240.908002][ T6570] RSP: 002b:00007f21c1bf5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.916432][ T6570] RAX: ffffffffffffffda RBX: 00007f21c1bf5ee0 RCX: 00007f21c259360a
[ 240.924534][ T6570] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f21c1bf5ea0
[ 240.932794][ T6570] RBP: 0000200000000400 R08: 00007f21c1bf5ee0 R09: 0000000000000000
[ 240.940871][ T6570] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 240.948946][ T6570] R13: 00007f21c1bf5ea0 R14: 00000000000125ed R15: 0000200000000640
[ 240.956949][ T6570]
2026/10/04 14:29:32 executed programs: 425
[ 240.961286][ T6570] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.974496][ T6570] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 241.028120][ T6576] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 241.035676][ T6576] CPU: 0 PID: 6576 Comm: syz.4.429 Not tainted syzkaller #0
[ 241.043107][ T6576] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 241.053175][ T6576] Call Trace:
[ 241.056498][ T6576]
[ 241.059438][ T6576] dump_stack_lvl+0x188/0x250
[ 241.064352][ T6576] ? show_regs_print_info+0x20/0x20
[ 241.069638][ T6576] ? load_image+0x410/0x410
[ 241.074257][ T6576] sysfs_create_dir_ns+0x26a/0x290
[ 241.079378][ T6576] ? sysfs_warn_dup+0xa0/0xa0
[ 241.084067][ T6576] ? do_raw_spin_unlock+0x11d/0x230
[ 241.089279][ T6576] kobject_add_internal+0x5ba/0xcd0
[ 241.094492][ T6576] kobject_init_and_add+0x128/0x190
[ 241.099815][ T6576] ? lockdep_softirqs_off+0x430/0x430
[ 241.101629][ T6577] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 241.105310][ T6576] ? kobject_add+0x230/0x230
[ 241.117311][ T6576] ? __init_swait_queue_head+0xa4/0x140
[ 241.122894][ T6576] gfs2_sys_fs_add+0x24f/0x4b0
[ 241.127661][ T6576] ? gfs2_recover_set+0x240/0x240
[ 241.132681][ T6576] ? snprintf+0xe5/0x140
[ 241.136919][ T6576] ? __free_pages+0x95/0x1a0
[ 241.141505][ T6576] ? vscnprintf+0x80/0x80
[ 241.145843][ T6576] gfs2_fill_super+0x11ed/0x1ea0
[ 241.150794][ T6576] ? gfs2_reconfigure+0xd80/0xd80
[ 241.155922][ T6576] ? sb_set_blocksize+0xa5/0xe0
[ 241.160777][ T6576] get_tree_bdev+0x3e6/0x610
[ 241.165369][ T6576] ? gfs2_reconfigure+0xd80/0xd80
[ 241.170389][ T6576] gfs2_get_tree+0x4d/0x1e0
[ 241.175075][ T6576] vfs_get_tree+0x88/0x270
[ 241.179587][ T6576] do_new_mount+0x247/0xa40
[ 241.184095][ T6576] __se_sys_mount+0x2e3/0x3d0
[ 241.188858][ T6576] ? __x64_sys_mount+0xc0/0xc0
[ 241.193620][ T6576] ? lockdep_hardirqs_on+0x94/0x140
[ 241.198819][ T6576] ? __x64_sys_mount+0x1c/0xc0
[ 241.203615][ T6576] do_syscall_64+0x4c/0xa0
[ 241.208044][ T6576] ? clear_bhb_loop+0x30/0x80
[ 241.212719][ T6576] ? clear_bhb_loop+0x30/0x80
[ 241.217400][ T6576] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 241.223372][ T6576] RIP: 0033:0x7fd7912ad60a
[ 241.227902][ T6576] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 241.247597][ T6576] RSP: 002b:00007fd79090fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 241.256015][ T6576] RAX: ffffffffffffffda RBX: 00007fd79090fee0 RCX: 00007fd7912ad60a
[ 241.263990][ T6576] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fd79090fea0
[ 241.271957][ T6576] RBP: 0000200000000400 R08: 00007fd79090fee0 R09: 0000000000000000
[ 241.279921][ T6576] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 241.287885][ T6576] R13: 00007fd79090fea0 R14: 00000000000125ed R15: 0000200000000640
[ 241.295966][ T6576]
[ 241.299116][ T6577] CPU: 1 PID: 6577 Comm: syz.0.431 Not tainted syzkaller #0
[ 241.299176][ T6576] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 241.306395][ T6577] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 241.306406][ T6577] Call Trace:
[ 241.306413][ T6577]
[ 241.306420][ T6577] dump_stack_lvl+0x188/0x250
[ 241.319632][ T6576] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 241.329654][ T6577] ? show_regs_print_info+0x20/0x20
[ 241.329679][ T6577] ? load_image+0x410/0x410
[ 241.329705][ T6577] sysfs_create_dir_ns+0x26a/0x290
[ 241.362191][ T6577] ? sysfs_warn_dup+0xa0/0xa0
[ 241.366886][ T6577] ? do_raw_spin_unlock+0x11d/0x230
[ 241.372113][ T6577] kobject_add_internal+0x5ba/0xcd0
[ 241.377428][ T6577] kobject_init_and_add+0x128/0x190
[ 241.382643][ T6577] ? lockdep_softirqs_off+0x430/0x430
[ 241.388035][ T6577] ? kobject_add+0x230/0x230
[ 241.392646][ T6577] ? __init_swait_queue_head+0xa4/0x140
[ 241.398214][ T6577] gfs2_sys_fs_add+0x24f/0x4b0
[ 241.406089][ T6577] ? gfs2_recover_set+0x240/0x240
[ 241.411224][ T6577] ? snprintf+0xe5/0x140
[ 241.415488][ T6577] ? __free_pages+0x95/0x1a0
[ 241.420190][ T6577] ? vscnprintf+0x80/0x80
[ 241.424552][ T6577] gfs2_fill_super+0x11ed/0x1ea0
[ 241.429532][ T6577] ? gfs2_reconfigure+0xd80/0xd80
[ 241.434702][ T6577] ? sb_set_blocksize+0xa5/0xe0
[ 241.439624][ T6577] get_tree_bdev+0x3e6/0x610
[ 241.444237][ T6577] ? gfs2_reconfigure+0xd80/0xd80
[ 241.449292][ T6577] gfs2_get_tree+0x4d/0x1e0
[ 241.453925][ T6577] vfs_get_tree+0x88/0x270
[ 241.458364][ T6577] do_new_mount+0x247/0xa40
[ 241.463030][ T6577] __se_sys_mount+0x2e3/0x3d0
[ 241.467741][ T6577] ? __x64_sys_mount+0xc0/0xc0
[ 241.472521][ T6577] ? lockdep_hardirqs_on+0x94/0x140
[ 241.477866][ T6577] ? __x64_sys_mount+0x1c/0xc0
[ 241.482878][ T6577] do_syscall_64+0x4c/0xa0
[ 241.487307][ T6577] ? clear_bhb_loop+0x30/0x80
[ 241.492004][ T6577] ? clear_bhb_loop+0x30/0x80
[ 241.496795][ T6577] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 241.502788][ T6577] RIP: 0033:0x7f4fcb6ad60a
[ 241.507215][ T6577] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 241.527027][ T6577] RSP: 002b:00007f4fcad0fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 241.535629][ T6577] RAX: ffffffffffffffda RBX: 00007f4fcad0fee0 RCX: 00007f4fcb6ad60a
[ 241.543609][ T6577] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4fcad0fea0
[ 241.551594][ T6577] RBP: 0000200000000400 R08: 00007f4fcad0fee0 R09: 0000000000000000
[ 241.559576][ T6577] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 241.567651][ T6577] R13: 00007f4fcad0fea0 R14: 00000000000125ed R15: 0000200000000640
[ 241.575650][ T6577]
[ 241.579929][ T6577] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 241.593400][ T6577] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 242.065587][ T6585] set_capacity_and_notify: 2 callbacks suppressed
[ 242.065601][ T6585] loop3: detected capacity change from 0 to 32768
[ 242.194028][ T6585] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 242.201964][ T6585] CPU: 1 PID: 6585 Comm: syz.3.433 Not tainted syzkaller #0
[ 242.209254][ T6585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 242.219353][ T6585] Call Trace:
[ 242.222641][ T6585]
[ 242.225588][ T6585] dump_stack_lvl+0x188/0x250
[ 242.230286][ T6585] ? show_regs_print_info+0x20/0x20
[ 242.235581][ T6585] ? load_image+0x410/0x410
[ 242.240104][ T6585] sysfs_create_dir_ns+0x26a/0x290
[ 242.245238][ T6585] ? sysfs_warn_dup+0xa0/0xa0
[ 242.249930][ T6585] ? do_raw_spin_unlock+0x11d/0x230
[ 242.255148][ T6585] kobject_add_internal+0x5ba/0xcd0
[ 242.260367][ T6585] kobject_init_and_add+0x128/0x190
[ 242.265579][ T6585] ? lockdep_softirqs_off+0x430/0x430
[ 242.270977][ T6585] ? kobject_add+0x230/0x230
[ 242.275582][ T6585] ? __init_swait_queue_head+0xa4/0x140
[ 242.281190][ T6585] gfs2_sys_fs_add+0x24f/0x4b0
[ 242.285966][ T6585] ? gfs2_recover_set+0x240/0x240
[ 242.290998][ T6585] ? snprintf+0xe5/0x140
[ 242.295513][ T6585] ? __free_pages+0x95/0x1a0
[ 242.300119][ T6585] ? vscnprintf+0x80/0x80
[ 242.304474][ T6585] gfs2_fill_super+0x11ed/0x1ea0
[ 242.309428][ T6585] ? gfs2_reconfigure+0xd80/0xd80
[ 242.314483][ T6585] ? sb_set_blocksize+0xa5/0xe0
[ 242.319344][ T6585] get_tree_bdev+0x3e6/0x610
[ 242.324116][ T6585] ? gfs2_reconfigure+0xd80/0xd80
[ 242.329164][ T6585] gfs2_get_tree+0x4d/0x1e0
[ 242.333799][ T6585] vfs_get_tree+0x88/0x270
[ 242.338226][ T6585] do_new_mount+0x247/0xa40
[ 242.342743][ T6585] __se_sys_mount+0x2e3/0x3d0
[ 242.347437][ T6585] ? __x64_sys_mount+0xc0/0xc0
[ 242.352224][ T6585] ? lockdep_hardirqs_on+0x94/0x140
[ 242.357606][ T6585] ? __x64_sys_mount+0x1c/0xc0
[ 242.362384][ T6585] do_syscall_64+0x4c/0xa0
[ 242.366802][ T6585] ? clear_bhb_loop+0x30/0x80
[ 242.371490][ T6585] ? clear_bhb_loop+0x30/0x80
[ 242.376300][ T6585] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 242.382198][ T6585] RIP: 0033:0x7f21c259360a
[ 242.386628][ T6585] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 242.406676][ T6585] RSP: 002b:00007f21c1bf5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 242.420901][ T6585] RAX: ffffffffffffffda RBX: 00007f21c1bf5ee0 RCX: 00007f21c259360a
[ 242.429090][ T6585] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f21c1bf5ea0
[ 242.437271][ T6585] RBP: 0000200000000400 R08: 00007f21c1bf5ee0 R09: 0000000000000000
[ 242.445442][ T6585] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 242.453651][ T6585] R13: 00007f21c1bf5ea0 R14: 00000000000125ed R15: 0000200000000640
[ 242.461744][ T6585]
[ 242.465986][ T6585] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 242.479337][ T6585] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 242.498962][ T4288] Bluetooth: hci5: command 0x0406 tx timeout
[ 242.782917][ T6596] loop4: detected capacity change from 0 to 32768
[ 242.844584][ T6596] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 242.852244][ T6596] CPU: 1 PID: 6596 Comm: syz.4.440 Not tainted syzkaller #0
[ 242.859920][ T6596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 242.869993][ T6596] Call Trace:
[ 242.875596][ T6596]
[ 242.878544][ T6596] dump_stack_lvl+0x188/0x250
[ 242.883236][ T6596] ? show_regs_print_info+0x20/0x20
[ 242.888446][ T6596] ? load_image+0x410/0x410
[ 242.892968][ T6596] sysfs_create_dir_ns+0x26a/0x290
[ 242.898269][ T6596] ? sysfs_warn_dup+0xa0/0xa0
[ 242.903106][ T6596] ? do_raw_spin_unlock+0x11d/0x230
[ 242.908489][ T6596] kobject_add_internal+0x5ba/0xcd0
[ 242.914066][ T6596] kobject_init_and_add+0x128/0x190
[ 242.919410][ T6596] ? lockdep_softirqs_off+0x430/0x430
[ 242.924990][ T6596] ? kobject_add+0x230/0x230
[ 242.929689][ T6596] ? __init_swait_queue_head+0xa4/0x140
[ 242.935263][ T6596] gfs2_sys_fs_add+0x24f/0x4b0
[ 242.940067][ T6596] ? gfs2_recover_set+0x240/0x240
[ 242.945120][ T6596] ? snprintf+0xe5/0x140
[ 242.949382][ T6596] ? __free_pages+0x95/0x1a0
[ 242.954198][ T6596] ? vscnprintf+0x80/0x80
[ 242.958743][ T6596] gfs2_fill_super+0x11ed/0x1ea0
[ 242.963886][ T6596] ? gfs2_reconfigure+0xd80/0xd80
[ 242.969213][ T6596] ? sb_set_blocksize+0xa5/0xe0
[ 242.974262][ T6596] get_tree_bdev+0x3e6/0x610
[ 242.979169][ T6596] ? gfs2_reconfigure+0xd80/0xd80
[ 242.984213][ T6596] gfs2_get_tree+0x4d/0x1e0
[ 242.988734][ T6596] vfs_get_tree+0x88/0x270
[ 242.993605][ T6596] do_new_mount+0x247/0xa40
[ 242.998340][ T6596] __se_sys_mount+0x2e3/0x3d0
[ 243.003127][ T6596] ? __x64_sys_mount+0xc0/0xc0
[ 243.007920][ T6596] ? lockdep_hardirqs_on+0x94/0x140
[ 243.013147][ T6596] ? __x64_sys_mount+0x1c/0xc0
[ 243.017940][ T6596] do_syscall_64+0x4c/0xa0
[ 243.022384][ T6596] ? clear_bhb_loop+0x30/0x80
[ 243.027166][ T6596] ? clear_bhb_loop+0x30/0x80
[ 243.032201][ T6596] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 243.035779][ T6601] loop3: detected capacity change from 0 to 32768
[ 243.038123][ T6596] RIP: 0033:0x7fd7912ad60a
[ 243.049396][ T6596] 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
[ 243.069653][ T6596] RSP: 002b:00007fd79090fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 243.080284][ T6596] RAX: ffffffffffffffda RBX: 00007fd79090fee0 RCX: 00007fd7912ad60a
[ 243.088325][ T6596] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fd79090fea0
[ 243.096499][ T6596] RBP: 0000200000000400 R08: 00007fd79090fee0 R09: 0000000000000000
[ 243.105010][ T6596] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 243.113088][ T6596] R13: 00007fd79090fea0 R14: 00000000000125ed R15: 0000200000000640
[ 243.121094][ T6596]
[ 243.125392][ T6596] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 243.138646][ T6596] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 243.358977][ T6601] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.366610][ T6601] CPU: 0 PID: 6601 Comm: syz.3.441 Not tainted syzkaller #0
[ 243.374005][ T6601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 243.384246][ T6601] Call Trace:
[ 243.387545][ T6601]
[ 243.390491][ T6601] dump_stack_lvl+0x188/0x250
[ 243.395194][ T6601] ? show_regs_print_info+0x20/0x20
[ 243.400501][ T6601] ? load_image+0x410/0x410
[ 243.405145][ T6601] sysfs_create_dir_ns+0x26a/0x290
[ 243.411242][ T6601] ? sysfs_warn_dup+0xa0/0xa0
[ 243.416116][ T6601] ? do_raw_spin_unlock+0x11d/0x230
[ 243.421691][ T6601] kobject_add_internal+0x5ba/0xcd0
[ 243.427006][ T6601] kobject_init_and_add+0x128/0x190
[ 243.432615][ T6601] ? lockdep_softirqs_off+0x430/0x430
[ 243.438021][ T6601] ? kobject_add+0x230/0x230
[ 243.442735][ T6601] ? __init_swait_queue_head+0xa4/0x140
[ 243.448430][ T6601] gfs2_sys_fs_add+0x24f/0x4b0
[ 243.453225][ T6601] ? gfs2_recover_set+0x240/0x240
[ 243.458270][ T6601] ? snprintf+0xe5/0x140
[ 243.462533][ T6601] ? __free_pages+0x95/0x1a0
[ 243.467149][ T6601] ? vscnprintf+0x80/0x80
[ 243.471509][ T6601] gfs2_fill_super+0x11ed/0x1ea0
[ 243.476596][ T6601] ? gfs2_reconfigure+0xd80/0xd80
[ 243.481999][ T6601] ? sb_set_blocksize+0xa5/0xe0
[ 243.487079][ T6601] get_tree_bdev+0x3e6/0x610
[ 243.491731][ T6601] ? gfs2_reconfigure+0xd80/0xd80
[ 243.497060][ T6601] gfs2_get_tree+0x4d/0x1e0
[ 243.501690][ T6601] vfs_get_tree+0x88/0x270
[ 243.506458][ T6601] do_new_mount+0x247/0xa40
[ 243.511081][ T6601] __se_sys_mount+0x2e3/0x3d0
[ 243.515954][ T6601] ? __x64_sys_mount+0xc0/0xc0
[ 243.520779][ T6601] ? lockdep_hardirqs_on+0x94/0x140
[ 243.526174][ T6601] ? __x64_sys_mount+0x1c/0xc0
[ 243.530964][ T6601] do_syscall_64+0x4c/0xa0
[ 243.535491][ T6601] ? clear_bhb_loop+0x30/0x80
[ 243.540188][ T6601] ? clear_bhb_loop+0x30/0x80
[ 243.544885][ T6601] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 243.550992][ T6601] RIP: 0033:0x7f21c259360a
[ 243.555418][ T6601] 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
[ 243.575121][ T6601] RSP: 002b:00007f21c1bf5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 243.583555][ T6601] RAX: ffffffffffffffda RBX: 00007f21c1bf5ee0 RCX: 00007f21c259360a
[ 243.591640][ T6601] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f21c1bf5ea0
[ 243.599821][ T6601] RBP: 0000200000000400 R08: 00007f21c1bf5ee0 R09: 0000000000000000
[ 243.607811][ T6601] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 243.615801][ T6601] R13: 00007f21c1bf5ea0 R14: 00000000000125ed R15: 0000200000000640
[ 243.623811][ T6601]
[ 243.627770][ T6601] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 243.641291][ T6601] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 243.906812][ T6603] loop4: detected capacity change from 0 to 32768
[ 243.933915][ T6599] loop0: detected capacity change from 0 to 32768
[ 243.993367][ T6603] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 244.000999][ T6603] CPU: 1 PID: 6603 Comm: syz.4.442 Not tainted syzkaller #0
[ 244.008400][ T6603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 244.018793][ T6603] Call Trace:
[ 244.022089][ T6603]
[ 244.025072][ T6603] dump_stack_lvl+0x188/0x250
[ 244.029767][ T6603] ? show_regs_print_info+0x20/0x20
[ 244.035445][ T6603] ? load_image+0x410/0x410
[ 244.040023][ T6603] sysfs_create_dir_ns+0x26a/0x290
[ 244.045145][ T6603] ? sysfs_warn_dup+0xa0/0xa0
[ 244.049838][ T6603] ? do_raw_spin_unlock+0x11d/0x230
[ 244.055072][ T6603] kobject_add_internal+0x5ba/0xcd0
[ 244.060280][ T6603] kobject_init_and_add+0x128/0x190
[ 244.065494][ T6603] ? lockdep_softirqs_off+0x430/0x430
[ 244.070881][ T6603] ? kobject_add+0x230/0x230
[ 244.075484][ T6603] ? __init_swait_queue_head+0xa4/0x140
[ 244.081045][ T6603] gfs2_sys_fs_add+0x24f/0x4b0
[ 244.085815][ T6603] ? gfs2_recover_set+0x240/0x240
[ 244.090844][ T6603] ? snprintf+0xe5/0x140
[ 244.095093][ T6603] ? __free_pages+0x95/0x1a0
[ 244.099693][ T6603] ? vscnprintf+0x80/0x80
[ 244.104228][ T6603] gfs2_fill_super+0x11ed/0x1ea0
[ 244.109205][ T6603] ? gfs2_reconfigure+0xd80/0xd80
[ 244.114263][ T6603] ? sb_set_blocksize+0xa5/0xe0
[ 244.119526][ T6603] get_tree_bdev+0x3e6/0x610
[ 244.124131][ T6603] ? gfs2_reconfigure+0xd80/0xd80
[ 244.129290][ T6603] gfs2_get_tree+0x4d/0x1e0
[ 244.133806][ T6603] vfs_get_tree+0x88/0x270
[ 244.138241][ T6603] do_new_mount+0x247/0xa40
[ 244.142769][ T6603] __se_sys_mount+0x2e3/0x3d0
[ 244.147469][ T6603] ? __x64_sys_mount+0xc0/0xc0
[ 244.152254][ T6603] ? lockdep_hardirqs_on+0x94/0x140
[ 244.157479][ T6603] ? __x64_sys_mount+0x1c/0xc0
[ 244.162252][ T6603] do_syscall_64+0x4c/0xa0
[ 244.166771][ T6603] ? clear_bhb_loop+0x30/0x80
[ 244.171456][ T6603] ? clear_bhb_loop+0x30/0x80
[ 244.172706][ T6599] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 244.176153][ T6603] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 244.189404][ T6603] RIP: 0033:0x7fd7912ad60a
[ 244.193870][ T6603] 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
[ 244.213748][ T6603] RSP: 002b:00007fd79090fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.222182][ T6603] RAX: ffffffffffffffda RBX: 00007fd79090fee0 RCX: 00007fd7912ad60a
[ 244.230210][ T6603] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fd79090fea0
[ 244.238320][ T6603] RBP: 0000200000000400 R08: 00007fd79090fee0 R09: 0000000000000000
[ 244.246304][ T6603] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 244.254288][ T6603] R13: 00007fd79090fea0 R14: 00000000000125ed R15: 0000200000000640
[ 244.262634][ T6603]
[ 244.266613][ T6603] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.280110][ T6603] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.311530][ T6599] CPU: 1 PID: 6599 Comm: syz.0.439 Not tainted syzkaller #0
[ 244.318869][ T6599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 244.329077][ T6599] Call Trace:
[ 244.332497][ T6599]
[ 244.335617][ T6599] dump_stack_lvl+0x188/0x250
[ 244.340318][ T6599] ? show_regs_print_info+0x20/0x20
[ 244.345534][ T6599] ? load_image+0x410/0x410
[ 244.350067][ T6599] sysfs_create_dir_ns+0x26a/0x290
[ 244.355323][ T6599] ? sysfs_warn_dup+0xa0/0xa0
[ 244.360244][ T6599] ? do_raw_spin_unlock+0x11d/0x230
[ 244.365549][ T6599] kobject_add_internal+0x5ba/0xcd0
[ 244.370771][ T6599] kobject_init_and_add+0x128/0x190
[ 244.375997][ T6599] ? lockdep_softirqs_off+0x430/0x430
[ 244.381427][ T6599] ? kobject_add+0x230/0x230
[ 244.386034][ T6599] ? __init_swait_queue_head+0xa4/0x140
[ 244.391592][ T6599] gfs2_sys_fs_add+0x24f/0x4b0
[ 244.396549][ T6599] ? gfs2_recover_set+0x240/0x240
[ 244.401753][ T6599] ? snprintf+0xe5/0x140
[ 244.406211][ T6599] ? __free_pages+0x95/0x1a0
[ 244.410811][ T6599] ? vscnprintf+0x80/0x80
[ 244.415344][ T6599] gfs2_fill_super+0x11ed/0x1ea0
[ 244.420314][ T6599] ? gfs2_reconfigure+0xd80/0xd80
[ 244.425427][ T6599] ? sb_set_blocksize+0xa5/0xe0
[ 244.430384][ T6599] get_tree_bdev+0x3e6/0x610
[ 244.434994][ T6599] ? gfs2_reconfigure+0xd80/0xd80
[ 244.440036][ T6599] gfs2_get_tree+0x4d/0x1e0
[ 244.444558][ T6599] vfs_get_tree+0x88/0x270
[ 244.449014][ T6599] do_new_mount+0x247/0xa40
[ 244.453550][ T6599] __se_sys_mount+0x2e3/0x3d0
[ 244.458248][ T6599] ? __x64_sys_mount+0xc0/0xc0
[ 244.463033][ T6599] ? lockdep_hardirqs_on+0x94/0x140
[ 244.468254][ T6599] ? __x64_sys_mount+0x1c/0xc0
[ 244.473036][ T6599] do_syscall_64+0x4c/0xa0
[ 244.477468][ T6599] ? clear_bhb_loop+0x30/0x80
[ 244.482151][ T6599] ? clear_bhb_loop+0x30/0x80
[ 244.486923][ T6599] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 244.492919][ T6599] RIP: 0033:0x7f4fcb6ad60a
[ 244.497344][ T6599] 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
[ 244.517098][ T6599] RSP: 002b:00007f4fcaceee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.525656][ T6599] RAX: ffffffffffffffda RBX: 00007f4fcaceeee0 RCX: 00007f4fcb6ad60a
[ 244.533654][ T6599] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4fcaceeea0
[ 244.541637][ T6599] RBP: 0000200000000400 R08: 00007f4fcaceeee0 R09: 0000000000000000
[ 244.549708][ T6599] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 244.558213][ T6599] R13: 00007f4fcaceeea0 R14: 00000000000125ed R15: 0000200000000640
[ 244.566207][ T6599]
[ 244.601119][ T6599] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.616370][ T6599] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.963024][ T6590] loop5: detected capacity change from 0 to 32768
[ 245.903015][ T6617] loop0: detected capacity change from 0 to 32768
[ 245.943737][ T6623] loop3: detected capacity change from 0 to 32768
[ 246.031305][ T6617] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 246.038921][ T6617] CPU: 0 PID: 6617 Comm: syz.0.449 Not tainted syzkaller #0
[ 246.046231][ T6617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 246.056653][ T6617] Call Trace:
[ 246.060105][ T6617]
[ 246.063047][ T6617] dump_stack_lvl+0x188/0x250
[ 246.067744][ T6617] ? show_regs_print_info+0x20/0x20
[ 246.072958][ T6617] ? load_image+0x410/0x410
[ 246.077583][ T6617] sysfs_create_dir_ns+0x26a/0x290
[ 246.082712][ T6617] ? sysfs_warn_dup+0xa0/0xa0
[ 246.087413][ T6617] ? do_raw_spin_unlock+0x11d/0x230
[ 246.092631][ T6617] kobject_add_internal+0x5ba/0xcd0
[ 246.097852][ T6617] kobject_init_and_add+0x128/0x190
[ 246.103070][ T6617] ? lockdep_softirqs_off+0x430/0x430
[ 246.108515][ T6617] ? kobject_add+0x230/0x230
[ 246.113370][ T6617] ? __init_swait_queue_head+0xa4/0x140
[ 246.118946][ T6617] gfs2_sys_fs_add+0x24f/0x4b0
[ 246.123912][ T6617] ? gfs2_recover_set+0x240/0x240
[ 246.129128][ T6617] ? snprintf+0xe5/0x140
[ 246.133473][ T6617] ? __free_pages+0x95/0x1a0
[ 246.138194][ T6617] ? vscnprintf+0x80/0x80
[ 246.142795][ T6617] gfs2_fill_super+0x11ed/0x1ea0
[ 246.147888][ T6617] ? gfs2_reconfigure+0xd80/0xd80
[ 246.152947][ T6617] ? sb_set_blocksize+0xa5/0xe0
[ 246.157818][ T6617] get_tree_bdev+0x3e6/0x610
[ 246.162421][ T6617] ? gfs2_reconfigure+0xd80/0xd80
[ 246.167453][ T6617] gfs2_get_tree+0x4d/0x1e0
[ 246.171970][ T6617] vfs_get_tree+0x88/0x270
[ 246.176396][ T6617] do_new_mount+0x247/0xa40
[ 246.180908][ T6617] __se_sys_mount+0x2e3/0x3d0
[ 246.185677][ T6617] ? __x64_sys_mount+0xc0/0xc0
[ 246.190442][ T6617] ? lockdep_hardirqs_on+0x94/0x140
[ 246.195665][ T6617] ? __x64_sys_mount+0x1c/0xc0
[ 246.200444][ T6617] do_syscall_64+0x4c/0xa0
[ 246.204873][ T6617] ? clear_bhb_loop+0x30/0x80
[ 246.209566][ T6617] ? clear_bhb_loop+0x30/0x80
[ 246.214268][ T6617] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 246.220176][ T6617] RIP: 0033:0x7f4fcb6ad60a
[ 246.224765][ T6617] 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
[ 246.244473][ T6617] RSP: 002b:00007f4fcad0fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 246.252910][ T6617] RAX: ffffffffffffffda RBX: 00007f4fcad0fee0 RCX: 00007f4fcb6ad60a
[ 246.260901][ T6617] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4fcad0fea0
[ 246.268888][ T6617] RBP: 0000200000000400 R08: 00007f4fcad0fee0 R09: 0000000000000000
[ 246.276868][ T6617] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 246.285226][ T6617] R13: 00007f4fcad0fea0 R14: 00000000000125ed R15: 0000200000000640
[ 246.293314][ T6617]
[ 246.297313][ T6617] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 246.310774][ T6617] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 246.325588][ T6626] loop5: detected capacity change from 0 to 32768
[ 246.351720][ T6623] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 246.359137][ T6623] CPU: 1 PID: 6623 Comm: syz.3.452 Not tainted syzkaller #0
[ 246.366521][ T6623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 246.376799][ T6623] Call Trace:
[ 246.380081][ T6623]
[ 246.383018][ T6623] dump_stack_lvl+0x188/0x250
[ 246.387801][ T6623] ? show_regs_print_info+0x20/0x20
[ 246.393012][ T6623] ? load_image+0x410/0x410
[ 246.397542][ T6623] sysfs_create_dir_ns+0x26a/0x290
[ 246.402674][ T6623] ? sysfs_warn_dup+0xa0/0xa0
[ 246.407371][ T6623] ? do_raw_spin_unlock+0x11d/0x230
[ 246.412853][ T6623] kobject_add_internal+0x5ba/0xcd0
[ 246.418186][ T6623] kobject_init_and_add+0x128/0x190
[ 246.423490][ T6623] ? lockdep_softirqs_off+0x430/0x430
[ 246.428877][ T6623] ? kobject_add+0x230/0x230
[ 246.433544][ T6623] ? __init_swait_queue_head+0xa4/0x140
[ 246.439116][ T6623] gfs2_sys_fs_add+0x24f/0x4b0
[ 246.443917][ T6623] ? gfs2_recover_set+0x240/0x240
[ 246.449078][ T6623] ? snprintf+0xe5/0x140
[ 246.453333][ T6623] ? __free_pages+0x95/0x1a0
[ 246.458029][ T6623] ? vscnprintf+0x80/0x80
[ 246.462461][ T6623] gfs2_fill_super+0x11ed/0x1ea0
[ 246.467502][ T6623] ? gfs2_reconfigure+0xd80/0xd80
[ 246.472552][ T6623] ? sb_set_blocksize+0xa5/0xe0
[ 246.477530][ T6623] get_tree_bdev+0x3e6/0x610
[ 246.482312][ T6623] ? gfs2_reconfigure+0xd80/0xd80
[ 246.487517][ T6623] gfs2_get_tree+0x4d/0x1e0
[ 246.492296][ T6623] vfs_get_tree+0x88/0x270
[ 246.496915][ T6623] do_new_mount+0x247/0xa40
[ 246.501447][ T6623] __se_sys_mount+0x2e3/0x3d0
[ 246.506244][ T6623] ? __x64_sys_mount+0xc0/0xc0
[ 246.511221][ T6623] ? lockdep_hardirqs_on+0x94/0x140
[ 246.516610][ T6623] ? __x64_sys_mount+0x1c/0xc0
[ 246.521491][ T6623] do_syscall_64+0x4c/0xa0
[ 246.526118][ T6623] ? clear_bhb_loop+0x30/0x80
[ 246.530946][ T6623] ? clear_bhb_loop+0x30/0x80
[ 246.535916][ T6623] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 246.542266][ T6623] RIP: 0033:0x7f21c259360a
2026/10/04 14:29:38 executed programs: 447
[ 246.546696][ T6623] 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
[ 246.567427][ T6623] RSP: 002b:00007f21c1bf5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 246.576180][ T6623] RAX: ffffffffffffffda RBX: 00007f21c1bf5ee0 RCX: 00007f21c259360a
[ 246.584448][ T6623] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f21c1bf5ea0
[ 246.592439][ T6623] RBP: 0000200000000400 R08: 00007f21c1bf5ee0 R09: 0000000000000000
[ 246.600633][ T6623] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 246.608620][ T6623] R13: 00007f21c1bf5ea0 R14: 00000000000125ed R15: 0000200000000640
[ 246.617058][ T6623]
[ 246.621576][ T6623] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 246.635092][ T6623] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 246.706259][ T6619] loop4: detected capacity change from 0 to 32768
[ 246.833535][ T6626] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 246.841234][ T6626] CPU: 1 PID: 6626 Comm: syz.5.453 Not tainted syzkaller #0
[ 246.844283][ T6628] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 246.848551][ T6626] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 246.866339][ T6626] Call Trace:
[ 246.869617][ T6626]
[ 246.872540][ T6626] dump_stack_lvl+0x188/0x250
[ 246.877309][ T6626] ? show_regs_print_info+0x20/0x20
[ 246.882505][ T6626] ? load_image+0x410/0x410
[ 246.887023][ T6626] sysfs_create_dir_ns+0x26a/0x290
[ 246.892133][ T6626] ? sysfs_warn_dup+0xa0/0xa0
[ 246.896825][ T6626] ? do_raw_spin_unlock+0x11d/0x230
[ 246.902014][ T6626] kobject_add_internal+0x5ba/0xcd0
[ 246.907211][ T6626] kobject_init_and_add+0x128/0x190
[ 246.912404][ T6626] ? lockdep_softirqs_off+0x430/0x430
[ 246.917776][ T6626] ? kobject_add+0x230/0x230
[ 246.922359][ T6626] ? __init_swait_queue_head+0xa4/0x140
[ 246.927902][ T6626] gfs2_sys_fs_add+0x24f/0x4b0
[ 246.932744][ T6626] ? gfs2_recover_set+0x240/0x240
[ 246.937759][ T6626] ? snprintf+0xe5/0x140
[ 246.942268][ T6626] ? __free_pages+0x95/0x1a0
[ 246.946873][ T6626] ? vscnprintf+0x80/0x80
[ 246.951226][ T6626] gfs2_fill_super+0x11ed/0x1ea0
[ 246.956185][ T6626] ? gfs2_reconfigure+0xd80/0xd80
[ 246.961213][ T6626] ? sb_set_blocksize+0xa5/0xe0
[ 246.966055][ T6626] get_tree_bdev+0x3e6/0x610
[ 246.970644][ T6626] ? gfs2_reconfigure+0xd80/0xd80
[ 246.975659][ T6626] gfs2_get_tree+0x4d/0x1e0
[ 246.980155][ T6626] vfs_get_tree+0x88/0x270
[ 246.984569][ T6626] do_new_mount+0x247/0xa40
[ 246.989082][ T6626] __se_sys_mount+0x2e3/0x3d0
[ 246.993781][ T6626] ? __x64_sys_mount+0xc0/0xc0
[ 246.998645][ T6626] ? lockdep_hardirqs_on+0x94/0x140
[ 247.003857][ T6626] ? __x64_sys_mount+0x1c/0xc0
[ 247.008715][ T6626] do_syscall_64+0x4c/0xa0
[ 247.013230][ T6626] ? clear_bhb_loop+0x30/0x80
[ 247.017897][ T6626] ? clear_bhb_loop+0x30/0x80
[ 247.022572][ T6626] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 247.028456][ T6626] RIP: 0033:0x7f578030a60a
[ 247.033091][ T6626] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 247.053874][ T6626] RSP: 002b:00007f577f96ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.062748][ T6626] RAX: ffffffffffffffda RBX: 00007f577f96cee0 RCX: 00007f578030a60a
[ 247.070737][ T6626] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f577f96cea0
[ 247.078705][ T6626] RBP: 0000200000000400 R08: 00007f577f96cee0 R09: 0000000000000000
[ 247.086664][ T6626] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 247.094630][ T6626] R13: 00007f577f96cea0 R14: 00000000000125ed R15: 0000200000000640
[ 247.103133][ T6626]
[ 247.106144][ T6628] CPU: 0 PID: 6628 Comm: syz.1.454 Not tainted syzkaller #0
[ 247.106192][ T6626] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 247.113605][ T6628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 247.113616][ T6628] Call Trace:
[ 247.113624][ T6628]
[ 247.113632][ T6628] dump_stack_lvl+0x188/0x250
[ 247.126946][ T6626] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 247.138199][ T6628] ? show_regs_print_info+0x20/0x20
[ 247.138230][ T6628] ? load_image+0x410/0x410
[ 247.138255][ T6628] sysfs_create_dir_ns+0x26a/0x290
[ 247.171031][ T6628] ? sysfs_warn_dup+0xa0/0xa0
[ 247.171708][ T6619] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.175721][ T6628] ? do_raw_spin_unlock+0x11d/0x230
[ 247.175749][ T6628] kobject_add_internal+0x5ba/0xcd0
[ 247.175771][ T6628] kobject_init_and_add+0x128/0x190
[ 247.175786][ T6628] ? lockdep_softirqs_off+0x430/0x430
[ 247.205772][ T6628] ? kobject_add+0x230/0x230
[ 247.210482][ T6628] ? __init_swait_queue_head+0xa4/0x140
[ 247.216487][ T6628] gfs2_sys_fs_add+0x24f/0x4b0
[ 247.221492][ T6628] ? gfs2_recover_set+0x240/0x240
[ 247.226635][ T6628] ? snprintf+0xe5/0x140
[ 247.231080][ T6628] ? __free_pages+0x95/0x1a0
[ 247.235866][ T6628] ? vscnprintf+0x80/0x80
[ 247.240225][ T6628] gfs2_fill_super+0x11ed/0x1ea0
[ 247.245195][ T6628] ? gfs2_reconfigure+0xd80/0xd80
[ 247.250253][ T6628] ? sb_set_blocksize+0xa5/0xe0
[ 247.255233][ T6628] get_tree_bdev+0x3e6/0x610
[ 247.259847][ T6628] ? gfs2_reconfigure+0xd80/0xd80
[ 247.264891][ T6628] gfs2_get_tree+0x4d/0x1e0
[ 247.269500][ T6628] vfs_get_tree+0x88/0x270
[ 247.273935][ T6628] do_new_mount+0x247/0xa40
[ 247.278540][ T6628] __se_sys_mount+0x2e3/0x3d0
[ 247.283444][ T6628] ? __x64_sys_mount+0xc0/0xc0
[ 247.288501][ T6628] ? lockdep_hardirqs_on+0x94/0x140
[ 247.293709][ T6628] ? __x64_sys_mount+0x1c/0xc0
[ 247.299069][ T6628] do_syscall_64+0x4c/0xa0
[ 247.303773][ T6628] ? clear_bhb_loop+0x30/0x80
[ 247.308587][ T6628] ? clear_bhb_loop+0x30/0x80
[ 247.313463][ T6628] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 247.319909][ T6628] RIP: 0033:0x7f6a34f1560a
[ 247.324670][ T6628] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 247.344554][ T6628] RSP: 002b:00007f6a34577e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.352988][ T6628] RAX: ffffffffffffffda RBX: 00007f6a34577ee0 RCX: 00007f6a34f1560a
[ 247.361152][ T6628] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f6a34577ea0
[ 247.369240][ T6628] RBP: 0000200000000400 R08: 00007f6a34577ee0 R09: 0000000000000000
[ 247.377366][ T6628] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 247.386266][ T6628] R13: 00007f6a34577ea0 R14: 00000000000125ed R15: 0000200000000640
[ 247.394285][ T6628]
[ 247.398844][ T6628] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 247.412511][ T6628] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 247.445599][ T6630] set_capacity_and_notify: 1 callbacks suppressed
[ 247.445614][ T6630] loop0: detected capacity change from 0 to 32768
[ 247.487713][ T6619] CPU: 1 PID: 6619 Comm: syz.4.450 Not tainted syzkaller #0
[ 247.495302][ T6619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 247.505734][ T6619] Call Trace:
[ 247.509020][ T6619]
[ 247.511954][ T6619] dump_stack_lvl+0x188/0x250
[ 247.516744][ T6619] ? show_regs_print_info+0x20/0x20
[ 247.521955][ T6619] ? load_image+0x410/0x410
[ 247.526580][ T6619] sysfs_create_dir_ns+0x26a/0x290
[ 247.531842][ T6619] ? sysfs_warn_dup+0xa0/0xa0
[ 247.536549][ T6619] ? do_raw_spin_unlock+0x11d/0x230
[ 247.541776][ T6619] kobject_add_internal+0x5ba/0xcd0
[ 247.547154][ T6619] kobject_init_and_add+0x128/0x190
[ 247.552698][ T6619] ? lockdep_softirqs_off+0x430/0x430
[ 247.558267][ T6619] ? kobject_add+0x230/0x230
[ 247.562885][ T6619] ? __init_swait_queue_head+0xa4/0x140
[ 247.568455][ T6619] gfs2_sys_fs_add+0x24f/0x4b0
[ 247.573279][ T6619] ? gfs2_recover_set+0x240/0x240
[ 247.578321][ T6619] ? snprintf+0xe5/0x140
[ 247.582588][ T6619] ? __free_pages+0x95/0x1a0
[ 247.587194][ T6619] ? vscnprintf+0x80/0x80
[ 247.591548][ T6619] gfs2_fill_super+0x11ed/0x1ea0
[ 247.596544][ T6619] ? gfs2_reconfigure+0xd80/0xd80
[ 247.601697][ T6619] ? sb_set_blocksize+0xa5/0xe0
[ 247.606675][ T6619] get_tree_bdev+0x3e6/0x610
[ 247.611309][ T6619] ? gfs2_reconfigure+0xd80/0xd80
[ 247.616512][ T6619] gfs2_get_tree+0x4d/0x1e0
[ 247.621134][ T6619] vfs_get_tree+0x88/0x270
[ 247.625559][ T6619] do_new_mount+0x247/0xa40
[ 247.630191][ T6619] __se_sys_mount+0x2e3/0x3d0
[ 247.635761][ T6619] ? __x64_sys_mount+0xc0/0xc0
[ 247.640825][ T6619] ? lockdep_hardirqs_on+0x94/0x140
[ 247.646409][ T6619] ? __x64_sys_mount+0x1c/0xc0
[ 247.651290][ T6619] do_syscall_64+0x4c/0xa0
[ 247.655915][ T6619] ? clear_bhb_loop+0x30/0x80
[ 247.660704][ T6619] ? clear_bhb_loop+0x30/0x80
[ 247.665493][ T6619] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 247.671857][ T6619] RIP: 0033:0x7fd7912ad60a
[ 247.676495][ T6619] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 247.696293][ T6619] RSP: 002b:00007fd79090fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.705516][ T6619] RAX: ffffffffffffffda RBX: 00007fd79090fee0 RCX: 00007fd7912ad60a
[ 247.713870][ T6619] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fd79090fea0
[ 247.722134][ T6619] RBP: 0000200000000400 R08: 00007fd79090fee0 R09: 0000000000000000
[ 247.730307][ T6619] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 247.738306][ T6619] R13: 00007fd79090fea0 R14: 00000000000125ed R15: 0000200000000640
[ 247.746407][ T6619]
[ 247.759434][ T6619] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 247.841892][ T6619] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 247.845936][ T6632] loop3: detected capacity change from 0 to 32768
[ 247.867504][ T6630] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.874995][ T6630] CPU: 0 PID: 6630 Comm: syz.0.455 Not tainted syzkaller #0
[ 247.882372][ T6630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 247.892439][ T6630] Call Trace:
[ 247.895872][ T6630]
[ 247.899545][ T6630] dump_stack_lvl+0x188/0x250
[ 247.904244][ T6630] ? show_regs_print_info+0x20/0x20
[ 247.909557][ T6630] ? load_image+0x410/0x410
[ 247.914244][ T6630] sysfs_create_dir_ns+0x26a/0x290
[ 247.919387][ T6630] ? sysfs_warn_dup+0xa0/0xa0
[ 247.924338][ T6630] ? do_raw_spin_unlock+0x11d/0x230
[ 247.929685][ T6630] kobject_add_internal+0x5ba/0xcd0
[ 247.935232][ T6630] kobject_init_and_add+0x128/0x190
[ 247.940881][ T6630] ? lockdep_softirqs_off+0x430/0x430
[ 247.946381][ T6630] ? kobject_add+0x230/0x230
[ 247.951187][ T6630] ? __init_swait_queue_head+0xa4/0x140
[ 247.956931][ T6630] gfs2_sys_fs_add+0x24f/0x4b0
[ 247.961724][ T6630] ? gfs2_recover_set+0x240/0x240
[ 247.966859][ T6630] ? snprintf+0xe5/0x140
[ 247.971306][ T6630] ? __free_pages+0x95/0x1a0
[ 247.975962][ T6630] ? vscnprintf+0x80/0x80
[ 247.980321][ T6630] gfs2_fill_super+0x11ed/0x1ea0
[ 247.985289][ T6630] ? gfs2_reconfigure+0xd80/0xd80
[ 247.990602][ T6630] ? sb_set_blocksize+0xa5/0xe0
[ 247.995477][ T6630] get_tree_bdev+0x3e6/0x610
[ 248.000085][ T6630] ? gfs2_reconfigure+0xd80/0xd80
[ 248.005348][ T6630] gfs2_get_tree+0x4d/0x1e0
[ 248.009884][ T6630] vfs_get_tree+0x88/0x270
[ 248.014315][ T6630] do_new_mount+0x247/0xa40
[ 248.018938][ T6630] __se_sys_mount+0x2e3/0x3d0
[ 248.023643][ T6630] ? __x64_sys_mount+0xc0/0xc0
[ 248.028701][ T6630] ? lockdep_hardirqs_on+0x94/0x140
[ 248.033917][ T6630] ? __x64_sys_mount+0x1c/0xc0
[ 248.038711][ T6630] do_syscall_64+0x4c/0xa0
[ 248.043148][ T6630] ? clear_bhb_loop+0x30/0x80
[ 248.047935][ T6630] ? clear_bhb_loop+0x30/0x80
[ 248.052719][ T6630] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.058638][ T6630] RIP: 0033:0x7f4fcb6ad60a
[ 248.063069][ T6630] 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
[ 248.082961][ T6630] RSP: 002b:00007f4fcad0fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.091427][ T6630] RAX: ffffffffffffffda RBX: 00007f4fcad0fee0 RCX: 00007f4fcb6ad60a
[ 248.099421][ T6630] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4fcad0fea0
[ 248.107626][ T6630] RBP: 0000200000000400 R08: 00007f4fcad0fee0 R09: 0000000000000000
[ 248.115625][ T6630] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.123606][ T6630] R13: 00007f4fcad0fea0 R14: 00000000000125ed R15: 0000200000000640
[ 248.131598][ T6630]
[ 248.134740][ T6630] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.148365][ T6630] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.175631][ T6632] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.183292][ T6632] CPU: 0 PID: 6632 Comm: syz.3.456 Not tainted syzkaller #0
[ 248.190598][ T6632] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 248.200770][ T6632] Call Trace:
[ 248.204056][ T6632]
[ 248.207050][ T6632] dump_stack_lvl+0x188/0x250
[ 248.211739][ T6632] ? show_regs_print_info+0x20/0x20
[ 248.216954][ T6632] ? load_image+0x410/0x410
[ 248.221690][ T6632] sysfs_create_dir_ns+0x26a/0x290
[ 248.226812][ T6632] ? sysfs_warn_dup+0xa0/0xa0
[ 248.231517][ T6632] ? do_raw_spin_unlock+0x11d/0x230
[ 248.236733][ T6632] kobject_add_internal+0x5ba/0xcd0
[ 248.241949][ T6632] kobject_init_and_add+0x128/0x190
[ 248.247157][ T6632] ? lockdep_softirqs_off+0x430/0x430
[ 248.252658][ T6632] ? kobject_add+0x230/0x230
[ 248.257254][ T6632] ? __init_swait_queue_head+0xa4/0x140
[ 248.262807][ T6632] gfs2_sys_fs_add+0x24f/0x4b0
[ 248.267607][ T6634] loop5: detected capacity change from 0 to 32768
[ 248.267661][ T6632] ? gfs2_recover_set+0x240/0x240
[ 248.279086][ T6632] ? snprintf+0xe5/0x140
[ 248.283350][ T6632] ? __free_pages+0x95/0x1a0
[ 248.287955][ T6632] ? vscnprintf+0x80/0x80
[ 248.292404][ T6632] gfs2_fill_super+0x11ed/0x1ea0
[ 248.297468][ T6632] ? gfs2_reconfigure+0xd80/0xd80
[ 248.302525][ T6632] ? sb_set_blocksize+0xa5/0xe0
[ 248.307612][ T6632] get_tree_bdev+0x3e6/0x610
[ 248.312217][ T6632] ? gfs2_reconfigure+0xd80/0xd80
[ 248.317339][ T6632] gfs2_get_tree+0x4d/0x1e0
[ 248.321950][ T6632] vfs_get_tree+0x88/0x270
[ 248.326482][ T6632] do_new_mount+0x247/0xa40
[ 248.331096][ T6632] __se_sys_mount+0x2e3/0x3d0
[ 248.336053][ T6632] ? __x64_sys_mount+0xc0/0xc0
[ 248.341009][ T6632] ? lockdep_hardirqs_on+0x94/0x140
[ 248.346239][ T6632] ? __x64_sys_mount+0x1c/0xc0
[ 248.351026][ T6632] do_syscall_64+0x4c/0xa0
[ 248.355451][ T6632] ? clear_bhb_loop+0x30/0x80
[ 248.360134][ T6632] ? clear_bhb_loop+0x30/0x80
[ 248.364816][ T6632] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.370796][ T6632] RIP: 0033:0x7f21c259360a
[ 248.375218][ T6632] 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
[ 248.394925][ T6632] RSP: 002b:00007f21c1bf5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.403707][ T6632] RAX: ffffffffffffffda RBX: 00007f21c1bf5ee0 RCX: 00007f21c259360a
[ 248.411933][ T6632] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f21c1bf5ea0
[ 248.419917][ T6632] RBP: 0000200000000400 R08: 00007f21c1bf5ee0 R09: 0000000000000000
[ 248.427900][ T6632] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.435893][ T6632] R13: 00007f21c1bf5ea0 R14: 00000000000125ed R15: 0000200000000640
[ 248.443991][ T6632]
[ 248.447881][ T6632] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.461047][ T6632] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.517894][ T6636] loop1: detected capacity change from 0 to 32768
[ 248.584069][ T6634] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.591538][ T6634] CPU: 1 PID: 6634 Comm: syz.5.458 Not tainted syzkaller #0
[ 248.598926][ T6634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 248.608994][ T6634] Call Trace:
[ 248.612308][ T6634]
[ 248.615343][ T6634] dump_stack_lvl+0x188/0x250
[ 248.620036][ T6634] ? show_regs_print_info+0x20/0x20
[ 248.625592][ T6634] ? load_image+0x410/0x410
[ 248.630111][ T6634] sysfs_create_dir_ns+0x26a/0x290
[ 248.635597][ T6634] ? sysfs_warn_dup+0xa0/0xa0
[ 248.640582][ T6634] ? do_raw_spin_unlock+0x11d/0x230
[ 248.645901][ T6634] kobject_add_internal+0x5ba/0xcd0
[ 248.651127][ T6634] kobject_init_and_add+0x128/0x190
[ 248.656444][ T6634] ? lockdep_softirqs_off+0x430/0x430
[ 248.661927][ T6634] ? kobject_add+0x230/0x230
[ 248.666539][ T6634] ? __init_swait_queue_head+0xa4/0x140
[ 248.672192][ T6634] gfs2_sys_fs_add+0x24f/0x4b0
[ 248.676978][ T6634] ? gfs2_recover_set+0x240/0x240
[ 248.682203][ T6634] ? snprintf+0xe5/0x140
[ 248.686555][ T6634] ? __free_pages+0x95/0x1a0
[ 248.691160][ T6634] ? vscnprintf+0x80/0x80
[ 248.695530][ T6634] gfs2_fill_super+0x11ed/0x1ea0
[ 248.700492][ T6634] ? gfs2_reconfigure+0xd80/0xd80
[ 248.705818][ T6634] ? sb_set_blocksize+0xa5/0xe0
[ 248.710691][ T6634] get_tree_bdev+0x3e6/0x610
[ 248.715388][ T6634] ? gfs2_reconfigure+0xd80/0xd80
[ 248.720506][ T6634] gfs2_get_tree+0x4d/0x1e0
[ 248.725024][ T6634] vfs_get_tree+0x88/0x270
[ 248.729452][ T6634] do_new_mount+0x247/0xa40
[ 248.733970][ T6634] __se_sys_mount+0x2e3/0x3d0
[ 248.738683][ T6634] ? __x64_sys_mount+0xc0/0xc0
[ 248.743456][ T6634] ? lockdep_hardirqs_on+0x94/0x140
[ 248.748760][ T6634] ? __x64_sys_mount+0x1c/0xc0
[ 248.753698][ T6634] do_syscall_64+0x4c/0xa0
[ 248.758149][ T6634] ? clear_bhb_loop+0x30/0x80
[ 248.762837][ T6634] ? clear_bhb_loop+0x30/0x80
[ 248.767606][ T6634] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.773499][ T6634] RIP: 0033:0x7f578030a60a
[ 248.776584][ T6638] loop4: detected capacity change from 0 to 32768
[ 248.777913][ T6634] 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
[ 248.804149][ T6634] RSP: 002b:00007f577f96ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.812701][ T6634] RAX: ffffffffffffffda RBX: 00007f577f96cee0 RCX: 00007f578030a60a
[ 248.820681][ T6634] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f577f96cea0
[ 248.828812][ T6634] RBP: 0000200000000400 R08: 00007f577f96cee0 R09: 0000000000000000
[ 248.836793][ T6634] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.844782][ T6634] R13: 00007f577f96cea0 R14: 00000000000125ed R15: 0000200000000640
[ 248.852769][ T6634]
[ 248.857254][ T6634] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.870697][ T6634] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.871596][ T6636] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.885015][ T6636] CPU: 0 PID: 6636 Comm: syz.1.457 Not tainted syzkaller #0
[ 248.892314][ T6636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 248.902470][ T6636] Call Trace:
[ 248.905763][ T6636]
[ 248.908706][ T6636] dump_stack_lvl+0x188/0x250
[ 248.913414][ T6636] ? show_regs_print_info+0x20/0x20
[ 248.918628][ T6636] ? load_image+0x410/0x410
[ 248.923156][ T6636] sysfs_create_dir_ns+0x26a/0x290
[ 248.928365][ T6636] ? sysfs_warn_dup+0xa0/0xa0
[ 248.933168][ T6636] ? do_raw_spin_unlock+0x11d/0x230
[ 248.938459][ T6636] kobject_add_internal+0x5ba/0xcd0
[ 248.943684][ T6636] kobject_init_and_add+0x128/0x190
[ 248.948911][ T6636] ? lockdep_softirqs_off+0x430/0x430
[ 248.954584][ T6636] ? kobject_add+0x230/0x230
[ 248.959399][ T6636] ? __init_swait_queue_head+0xa4/0x140
[ 248.965128][ T6636] gfs2_sys_fs_add+0x24f/0x4b0
[ 248.969995][ T6636] ? gfs2_recover_set+0x240/0x240
[ 248.975033][ T6636] ? snprintf+0xe5/0x140
[ 248.979279][ T6636] ? __free_pages+0x95/0x1a0
[ 248.984064][ T6636] ? vscnprintf+0x80/0x80
[ 248.988755][ T6636] gfs2_fill_super+0x11ed/0x1ea0
[ 248.993727][ T6636] ? gfs2_reconfigure+0xd80/0xd80
[ 248.998801][ T6636] ? sb_set_blocksize+0xa5/0xe0
[ 249.003675][ T6636] get_tree_bdev+0x3e6/0x610
[ 249.008299][ T6636] ? gfs2_reconfigure+0xd80/0xd80
[ 249.013342][ T6636] gfs2_get_tree+0x4d/0x1e0
[ 249.017949][ T6636] vfs_get_tree+0x88/0x270
[ 249.022385][ T6636] do_new_mount+0x247/0xa40
[ 249.026925][ T6636] __se_sys_mount+0x2e3/0x3d0
[ 249.031657][ T6636] ? __x64_sys_mount+0xc0/0xc0
[ 249.036453][ T6636] ? lockdep_hardirqs_on+0x94/0x140
[ 249.042032][ T6636] ? __x64_sys_mount+0x1c/0xc0
[ 249.046823][ T6636] do_syscall_64+0x4c/0xa0
[ 249.051252][ T6636] ? clear_bhb_loop+0x30/0x80
[ 249.056054][ T6636] ? clear_bhb_loop+0x30/0x80
[ 249.061019][ T6636] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 249.067015][ T6636] RIP: 0033:0x7f6a34f1560a
[ 249.071445][ T6636] 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
[ 249.091151][ T6636] RSP: 002b:00007f6a34577e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.099593][ T6636] RAX: ffffffffffffffda RBX: 00007f6a34577ee0 RCX: 00007f6a34f1560a
[ 249.107598][ T6636] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f6a34577ea0
[ 249.115588][ T6636] RBP: 0000200000000400 R08: 00007f6a34577ee0 R09: 0000000000000000
[ 249.123577][ T6636] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 249.131654][ T6636] R13: 00007f6a34577ea0 R14: 00000000000125ed R15: 0000200000000640
[ 249.139709][ T6636]
[ 249.143670][ T6636] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.157928][ T6636] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.184909][ T6638] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.192512][ T6638] CPU: 1 PID: 6638 Comm: syz.4.459 Not tainted syzkaller #0
[ 249.199819][ T6638] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 249.209896][ T6638] Call Trace:
[ 249.213191][ T6638]
[ 249.216144][ T6638] dump_stack_lvl+0x188/0x250
[ 249.220996][ T6638] ? show_regs_print_info+0x20/0x20
[ 249.226207][ T6638] ? load_image+0x410/0x410
[ 249.230736][ T6638] sysfs_create_dir_ns+0x26a/0x290
[ 249.235971][ T6638] ? sysfs_warn_dup+0xa0/0xa0
[ 249.240837][ T6638] ? do_raw_spin_unlock+0x11d/0x230
[ 249.246053][ T6638] kobject_add_internal+0x5ba/0xcd0
[ 249.251446][ T6638] kobject_init_and_add+0x128/0x190
[ 249.256665][ T6638] ? lockdep_softirqs_off+0x430/0x430
[ 249.262094][ T6638] ? kobject_add+0x230/0x230
[ 249.266804][ T6638] ? __init_swait_queue_head+0xa4/0x140
[ 249.272368][ T6638] gfs2_sys_fs_add+0x24f/0x4b0
[ 249.277147][ T6638] ? gfs2_recover_set+0x240/0x240
[ 249.282279][ T6638] ? snprintf+0xe5/0x140
[ 249.286563][ T6638] ? __free_pages+0x95/0x1a0
[ 249.291173][ T6638] ? vscnprintf+0x80/0x80
[ 249.295634][ T6638] gfs2_fill_super+0x11ed/0x1ea0
[ 249.300785][ T6638] ? gfs2_reconfigure+0xd80/0xd80
[ 249.305842][ T6638] ? sb_set_blocksize+0xa5/0xe0
[ 249.310722][ T6638] get_tree_bdev+0x3e6/0x610
[ 249.315341][ T6638] ? gfs2_reconfigure+0xd80/0xd80
[ 249.320384][ T6638] gfs2_get_tree+0x4d/0x1e0
[ 249.324996][ T6638] vfs_get_tree+0x88/0x270
[ 249.329435][ T6638] do_new_mount+0x247/0xa40
[ 249.333957][ T6638] __se_sys_mount+0x2e3/0x3d0
[ 249.338774][ T6638] ? __x64_sys_mount+0xc0/0xc0
[ 249.343560][ T6638] ? lockdep_hardirqs_on+0x94/0x140
[ 249.348863][ T6638] ? __x64_sys_mount+0x1c/0xc0
[ 249.353646][ T6638] do_syscall_64+0x4c/0xa0
[ 249.358073][ T6638] ? clear_bhb_loop+0x30/0x80
[ 249.362868][ T6638] ? clear_bhb_loop+0x30/0x80
[ 249.367066][ T6641] loop0: detected capacity change from 0 to 32768
[ 249.367559][ T6638] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 249.367583][ T6638] RIP: 0033:0x7fd7912ad60a
[ 249.367600][ T6638] 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
[ 249.404530][ T6638] RSP: 002b:00007fd79090fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.412967][ T6638] RAX: ffffffffffffffda RBX: 00007fd79090fee0 RCX: 00007fd7912ad60a
[ 249.421073][ T6638] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fd79090fea0
[ 249.429153][ T6638] RBP: 0000200000000400 R08: 00007fd79090fee0 R09: 0000000000000000
[ 249.437142][ T6638] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 249.445312][ T6638] R13: 00007fd79090fea0 R14: 00000000000125ed R15: 0000200000000640
[ 249.453313][ T6638]
[ 249.458221][ T6638] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.471492][ T6638] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.594464][ T6643] loop3: detected capacity change from 0 to 32768
[ 249.680450][ T6641] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.739415][ T6643] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.746887][ T6643] CPU: 0 PID: 6643 Comm: syz.3.461 Not tainted syzkaller #0
[ 249.754362][ T6643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 249.764428][ T6643] Call Trace:
[ 249.767722][ T6643]
[ 249.770665][ T6643] dump_stack_lvl+0x188/0x250
[ 249.775547][ T6643] ? show_regs_print_info+0x20/0x20
[ 249.780854][ T6643] ? load_image+0x410/0x410
[ 249.785479][ T6643] sysfs_create_dir_ns+0x26a/0x290
[ 249.790609][ T6643] ? sysfs_warn_dup+0xa0/0xa0
[ 249.795302][ T6643] ? do_raw_spin_unlock+0x11d/0x230
[ 249.800521][ T6643] kobject_add_internal+0x5ba/0xcd0
[ 249.805825][ T6643] kobject_init_and_add+0x128/0x190
[ 249.811041][ T6643] ? lockdep_softirqs_off+0x430/0x430
[ 249.816440][ T6643] ? kobject_add+0x230/0x230
[ 249.821677][ T6643] ? __init_swait_queue_head+0xa4/0x140
[ 249.827271][ T6643] gfs2_sys_fs_add+0x24f/0x4b0
[ 249.832060][ T6643] ? gfs2_recover_set+0x240/0x240
[ 249.837102][ T6643] ? snprintf+0xe5/0x140
[ 249.841618][ T6643] ? __free_pages+0x95/0x1a0
[ 249.846416][ T6643] ? vscnprintf+0x80/0x80
[ 249.851119][ T6643] gfs2_fill_super+0x11ed/0x1ea0
[ 249.856078][ T6643] ? gfs2_reconfigure+0xd80/0xd80
[ 249.861133][ T6643] ? sb_set_blocksize+0xa5/0xe0
[ 249.866012][ T6643] get_tree_bdev+0x3e6/0x610
[ 249.870708][ T6643] ? gfs2_reconfigure+0xd80/0xd80
[ 249.876112][ T6643] gfs2_get_tree+0x4d/0x1e0
[ 249.880635][ T6643] vfs_get_tree+0x88/0x270
[ 249.885084][ T6643] do_new_mount+0x247/0xa40
[ 249.889613][ T6643] __se_sys_mount+0x2e3/0x3d0
[ 249.894317][ T6643] ? __x64_sys_mount+0xc0/0xc0
[ 249.899086][ T6643] ? lockdep_hardirqs_on+0x94/0x140
[ 249.904293][ T6643] ? __x64_sys_mount+0x1c/0xc0
[ 249.909170][ T6643] do_syscall_64+0x4c/0xa0
[ 249.913723][ T6643] ? clear_bhb_loop+0x30/0x80
[ 249.918457][ T6643] ? clear_bhb_loop+0x30/0x80
[ 249.923149][ T6643] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 249.929060][ T6643] RIP: 0033:0x7f21c259360a
[ 249.933489][ T6643] 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
[ 249.953247][ T6643] RSP: 002b:00007f21c1bf5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.961766][ T6643] RAX: ffffffffffffffda RBX: 00007f21c1bf5ee0 RCX: 00007f21c259360a
[ 249.969881][ T6643] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f21c1bf5ea0
[ 249.978052][ T6643] RBP: 0000200000000400 R08: 00007f21c1bf5ee0 R09: 0000000000000000
[ 249.986133][ T6643] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 249.994220][ T6643] R13: 00007f21c1bf5ea0 R14: 00000000000125ed R15: 0000200000000640
[ 250.002303][ T6643]
[ 250.006502][ T6643] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.019972][ T6643] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.101505][ T6641] CPU: 0 PID: 6641 Comm: syz.0.460 Not tainted syzkaller #0
[ 250.108841][ T6641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 250.118994][ T6641] Call Trace:
[ 250.122287][ T6641]
[ 250.125224][ T6641] dump_stack_lvl+0x188/0x250
[ 250.129923][ T6641] ? show_regs_print_info+0x20/0x20
[ 250.135132][ T6641] ? load_image+0x410/0x410
[ 250.139779][ T6641] sysfs_create_dir_ns+0x26a/0x290
[ 250.144928][ T6649] loop1: detected capacity change from 0 to 32768
[ 250.144995][ T6641] ? sysfs_warn_dup+0xa0/0xa0
[ 250.156110][ T6641] ? do_raw_spin_unlock+0x11d/0x230
[ 250.161431][ T6641] kobject_add_internal+0x5ba/0xcd0
[ 250.166643][ T6641] kobject_init_and_add+0x128/0x190
[ 250.171842][ T6641] ? lockdep_softirqs_off+0x430/0x430
[ 250.177450][ T6641] ? kobject_add+0x230/0x230
[ 250.182117][ T6641] ? __init_swait_queue_head+0xa4/0x140
[ 250.187742][ T6641] gfs2_sys_fs_add+0x24f/0x4b0
[ 250.192505][ T6641] ? gfs2_recover_set+0x240/0x240
[ 250.197515][ T6641] ? snprintf+0xe5/0x140
[ 250.201759][ T6641] ? __free_pages+0x95/0x1a0
[ 250.206368][ T6641] ? vscnprintf+0x80/0x80
[ 250.210708][ T6641] gfs2_fill_super+0x11ed/0x1ea0
[ 250.215661][ T6641] ? gfs2_reconfigure+0xd80/0xd80
[ 250.220689][ T6641] ? sb_set_blocksize+0xa5/0xe0
[ 250.225528][ T6641] get_tree_bdev+0x3e6/0x610
[ 250.230119][ T6641] ? gfs2_reconfigure+0xd80/0xd80
[ 250.235163][ T6641] gfs2_get_tree+0x4d/0x1e0
[ 250.239753][ T6641] vfs_get_tree+0x88/0x270
[ 250.244243][ T6641] do_new_mount+0x247/0xa40
[ 250.248746][ T6641] __se_sys_mount+0x2e3/0x3d0
[ 250.253498][ T6641] ? __x64_sys_mount+0xc0/0xc0
[ 250.258247][ T6641] ? lockdep_hardirqs_on+0x94/0x140
[ 250.263435][ T6641] ? __x64_sys_mount+0x1c/0xc0
[ 250.268206][ T6641] do_syscall_64+0x4c/0xa0
[ 250.272612][ T6641] ? clear_bhb_loop+0x30/0x80
[ 250.277274][ T6641] ? clear_bhb_loop+0x30/0x80
[ 250.282031][ T6641] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.288017][ T6641] RIP: 0033:0x7f4fcb6ad60a
[ 250.292618][ T6641] 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
[ 250.312484][ T6641] RSP: 002b:00007f4fcaceee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.320992][ T6641] RAX: ffffffffffffffda RBX: 00007f4fcaceeee0 RCX: 00007f4fcb6ad60a
[ 250.329023][ T6641] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4fcaceeea0
[ 250.337084][ T6641] RBP: 0000200000000400 R08: 00007f4fcaceeee0 R09: 0000000000000000
[ 250.345044][ T6641] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 250.353108][ T6641] R13: 00007f4fcaceeea0 R14: 00000000000125ed R15: 0000200000000640
[ 250.361087][ T6641]
[ 250.606767][ T6649] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.614615][ T6649] CPU: 0 PID: 6649 Comm: syz.1.464 Not tainted syzkaller #0
[ 250.622004][ T6649] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 250.632243][ T6649] Call Trace:
[ 250.635738][ T6649]
[ 250.639117][ T6649] dump_stack_lvl+0x188/0x250
[ 250.644667][ T6649] ? show_regs_print_info+0x20/0x20
[ 250.649936][ T6649] ? load_image+0x410/0x410
[ 250.654604][ T6649] sysfs_create_dir_ns+0x26a/0x290
[ 250.660169][ T6649] ? sysfs_warn_dup+0xa0/0xa0
[ 250.665126][ T6649] ? do_raw_spin_unlock+0x11d/0x230
[ 250.670366][ T6649] kobject_add_internal+0x5ba/0xcd0
[ 250.671696][ T6641] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.675595][ T6649] kobject_init_and_add+0x128/0x190
[ 250.675618][ T6649] ? lockdep_softirqs_off+0x430/0x430
[ 250.675641][ T6649] ? kobject_add+0x230/0x230
[ 250.675660][ T6649] ? __init_swait_queue_head+0xa4/0x140
[ 250.675682][ T6649] gfs2_sys_fs_add+0x24f/0x4b0
[ 250.675701][ T6649] ? gfs2_recover_set+0x240/0x240
[ 250.675717][ T6649] ? snprintf+0xe5/0x140
[ 250.675735][ T6649] ? __free_pages+0x95/0x1a0
[ 250.675763][ T6649] ? vscnprintf+0x80/0x80
[ 250.675793][ T6649] gfs2_fill_super+0x11ed/0x1ea0
[ 250.675819][ T6649] ? gfs2_reconfigure+0xd80/0xd80
[ 250.675858][ T6649] ? sb_set_blocksize+0xa5/0xe0
[ 250.675880][ T6649] get_tree_bdev+0x3e6/0x610
[ 250.675902][ T6649] ? gfs2_reconfigure+0xd80/0xd80
[ 250.675921][ T6649] gfs2_get_tree+0x4d/0x1e0
[ 250.675940][ T6649] vfs_get_tree+0x88/0x270
[ 250.675960][ T6649] do_new_mount+0x247/0xa40
[ 250.675985][ T6649] __se_sys_mount+0x2e3/0x3d0
[ 250.676008][ T6649] ? __x64_sys_mount+0xc0/0xc0
[ 250.676030][ T6649] ? lockdep_hardirqs_on+0x94/0x140
[ 250.676048][ T6649] ? __x64_sys_mount+0x1c/0xc0
[ 250.676068][ T6649] do_syscall_64+0x4c/0xa0
[ 250.676084][ T6649] ? clear_bhb_loop+0x30/0x80
[ 250.676102][ T6649] ? clear_bhb_loop+0x30/0x80
[ 250.676119][ T6649] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.676134][ T6649] RIP: 0033:0x7f6a34f1560a
[ 250.676151][ T6649] 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
[ 250.676166][ T6649] RSP: 002b:00007f6a34577e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.676185][ T6649] RAX: ffffffffffffffda RBX: 00007f6a34577ee0 RCX: 00007f6a34f1560a
[ 250.676198][ T6649] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f6a34577ea0
[ 250.676211][ T6649] RBP: 0000200000000400 R08: 00007f6a34577ee0 R09: 0000000000000000
[ 250.676223][ T6649] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 250.676235][ T6649] R13: 00007f6a34577ea0 R14: 00000000000125ed R15: 0000200000000640
[ 250.676259][ T6649]
[ 250.677321][ T6649] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.697718][ T6641] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.700829][ T6649] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.034645][ T6653] loop3: detected capacity change from 0 to 32768
[ 251.282849][ T6655] loop1: detected capacity change from 0 to 32768
[ 251.310503][ T6653] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.317996][ T6653] CPU: 0 PID: 6653 Comm: syz.3.465 Not tainted syzkaller #0
[ 251.325395][ T6653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 251.335808][ T6653] Call Trace:
[ 251.339109][ T6653]
[ 251.342048][ T6653] dump_stack_lvl+0x188/0x250
[ 251.346743][ T6653] ? show_regs_print_info+0x20/0x20
[ 251.352228][ T6653] ? load_image+0x410/0x410
[ 251.356755][ T6653] sysfs_create_dir_ns+0x26a/0x290
[ 251.361910][ T6653] ? sysfs_warn_dup+0xa0/0xa0
[ 251.366605][ T6653] ? do_raw_spin_unlock+0x11d/0x230
[ 251.371840][ T6653] kobject_add_internal+0x5ba/0xcd0
[ 251.377064][ T6653] kobject_init_and_add+0x128/0x190
[ 251.382299][ T6653] ? lockdep_softirqs_off+0x430/0x430
[ 251.387802][ T6653] ? kobject_add+0x230/0x230
[ 251.392412][ T6653] ? __init_swait_queue_head+0xa4/0x140
[ 251.398368][ T6653] gfs2_sys_fs_add+0x24f/0x4b0
[ 251.403159][ T6653] ? gfs2_recover_set+0x240/0x240
[ 251.408215][ T6653] ? snprintf+0xe5/0x140
[ 251.412473][ T6653] ? __free_pages+0x95/0x1a0
[ 251.417270][ T6653] ? vscnprintf+0x80/0x80
[ 251.421798][ T6653] gfs2_fill_super+0x11ed/0x1ea0
[ 251.426938][ T6653] ? gfs2_reconfigure+0xd80/0xd80
[ 251.432074][ T6653] ? sb_set_blocksize+0xa5/0xe0
[ 251.437368][ T6653] get_tree_bdev+0x3e6/0x610
[ 251.442055][ T6653] ? gfs2_reconfigure+0xd80/0xd80
[ 251.447089][ T6653] gfs2_get_tree+0x4d/0x1e0
[ 251.451777][ T6653] vfs_get_tree+0x88/0x270
[ 251.456208][ T6653] do_new_mount+0x247/0xa40
[ 251.460897][ T6653] __se_sys_mount+0x2e3/0x3d0
[ 251.465860][ T6653] ? __x64_sys_mount+0xc0/0xc0
[ 251.470907][ T6653] ? lockdep_hardirqs_on+0x94/0x140
[ 251.476114][ T6653] ? __x64_sys_mount+0x1c/0xc0
[ 251.480903][ T6653] do_syscall_64+0x4c/0xa0
[ 251.485333][ T6653] ? clear_bhb_loop+0x30/0x80
[ 251.490111][ T6653] ? clear_bhb_loop+0x30/0x80
[ 251.494799][ T6653] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 251.500883][ T6653] RIP: 0033:0x7f21c259360a
[ 251.505421][ T6653] 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
[ 251.525035][ T6653] RSP: 002b:00007f21c1bf5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.533555][ T6653] RAX: ffffffffffffffda RBX: 00007f21c1bf5ee0 RCX: 00007f21c259360a
[ 251.541703][ T6653] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f21c1bf5ea0
[ 251.549698][ T6653] RBP: 0000200000000400 R08: 00007f21c1bf5ee0 R09: 0000000000000000
[ 251.557684][ T6653] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 251.565672][ T6653] R13: 00007f21c1bf5ea0 R14: 00000000000125ed R15: 0000200000000640
[ 251.573760][ T6653]
2026/10/04 14:29:43 executed programs: 461
[ 251.578138][ T6653] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.591331][ T6653] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.745099][ T6655] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.752831][ T6655] CPU: 0 PID: 6655 Comm: syz.1.466 Not tainted syzkaller #0
[ 251.760133][ T6655] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 251.770210][ T6655] Call Trace:
[ 251.773540][ T6655]
[ 251.776486][ T6655] dump_stack_lvl+0x188/0x250
[ 251.781187][ T6655] ? show_regs_print_info+0x20/0x20
[ 251.786490][ T6655] ? load_image+0x410/0x410
[ 251.791022][ T6655] sysfs_create_dir_ns+0x26a/0x290
[ 251.796152][ T6655] ? sysfs_warn_dup+0xa0/0xa0
[ 251.800849][ T6655] ? do_raw_spin_unlock+0x11d/0x230
[ 251.806076][ T6655] kobject_add_internal+0x5ba/0xcd0
[ 251.811299][ T6655] kobject_init_and_add+0x128/0x190
[ 251.816958][ T6655] ? lockdep_softirqs_off+0x430/0x430
[ 251.822647][ T6655] ? kobject_add+0x230/0x230
[ 251.827516][ T6655] ? __init_swait_queue_head+0xa4/0x140
[ 251.833088][ T6655] gfs2_sys_fs_add+0x24f/0x4b0
[ 251.838029][ T6655] ? gfs2_recover_set+0x240/0x240
[ 251.844230][ T6655] ? snprintf+0xe5/0x140
[ 251.848819][ T6655] ? __free_pages+0x95/0x1a0
[ 251.853433][ T6655] ? vscnprintf+0x80/0x80
[ 251.857791][ T6655] gfs2_fill_super+0x11ed/0x1ea0
[ 251.862802][ T6655] ? gfs2_reconfigure+0xd80/0xd80
[ 251.867998][ T6655] ? sb_set_blocksize+0xa5/0xe0
[ 251.872868][ T6655] get_tree_bdev+0x3e6/0x610
[ 251.877570][ T6655] ? gfs2_reconfigure+0xd80/0xd80
[ 251.882708][ T6655] gfs2_get_tree+0x4d/0x1e0
[ 251.887226][ T6655] vfs_get_tree+0x88/0x270
[ 251.891839][ T6655] do_new_mount+0x247/0xa40
[ 251.896367][ T6655] __se_sys_mount+0x2e3/0x3d0
[ 251.901056][ T6655] ? __x64_sys_mount+0xc0/0xc0
[ 251.905923][ T6655] ? lockdep_hardirqs_on+0x94/0x140
[ 251.911146][ T6655] ? __x64_sys_mount+0x1c/0xc0
[ 251.915931][ T6655] do_syscall_64+0x4c/0xa0
[ 251.920355][ T6655] ? clear_bhb_loop+0x30/0x80
[ 251.925038][ T6655] ? clear_bhb_loop+0x30/0x80
[ 251.929994][ T6655] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 251.936001][ T6655] RIP: 0033:0x7f6a34f1560a
[ 251.940681][ T6655] 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
[ 251.960483][ T6655] RSP: 002b:00007f6a34577e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.969146][ T6655] RAX: ffffffffffffffda RBX: 00007f6a34577ee0 RCX: 00007f6a34f1560a
[ 251.977178][ T6655] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f6a34577ea0
[ 251.983870][ T6657] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.985192][ T6655] RBP: 0000200000000400 R08: 00007f6a34577ee0 R09: 0000000000000000
[ 252.001336][ T6655] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.009909][ T6655] R13: 00007f6a34577ea0 R14: 00000000000125ed R15: 0000200000000640
[ 252.018176][ T6655]
[ 252.021404][ T6657] CPU: 1 PID: 6657 Comm: syz.0.467 Not tainted syzkaller #0
[ 252.022272][ T6655] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.028698][ T6657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 252.042041][ T6655] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.052564][ T6657] Call Trace:
[ 252.052578][ T6657]
[ 252.052586][ T6657] dump_stack_lvl+0x188/0x250
[ 252.052612][ T6657] ? show_regs_print_info+0x20/0x20
[ 252.069446][ T6650] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.070526][ T6657] ? load_image+0x410/0x410
[ 252.087708][ T6657] sysfs_create_dir_ns+0x26a/0x290
[ 252.092930][ T6657] ? sysfs_warn_dup+0xa0/0xa0
[ 252.097638][ T6657] ? do_raw_spin_unlock+0x11d/0x230
[ 252.102980][ T6657] kobject_add_internal+0x5ba/0xcd0
[ 252.108194][ T6657] kobject_init_and_add+0x128/0x190
[ 252.113428][ T6657] ? lockdep_softirqs_off+0x430/0x430
[ 252.118820][ T6657] ? kobject_add+0x230/0x230
[ 252.123423][ T6657] ? __init_swait_queue_head+0xa4/0x140
[ 252.128989][ T6657] gfs2_sys_fs_add+0x24f/0x4b0
[ 252.133803][ T6657] ? gfs2_recover_set+0x240/0x240
[ 252.138877][ T6657] ? snprintf+0xe5/0x140
[ 252.143597][ T6657] ? __free_pages+0x95/0x1a0
[ 252.148261][ T6657] ? vscnprintf+0x80/0x80
[ 252.152614][ T6657] gfs2_fill_super+0x11ed/0x1ea0
[ 252.157689][ T6657] ? gfs2_reconfigure+0xd80/0xd80
[ 252.162868][ T6657] ? sb_set_blocksize+0xa5/0xe0
[ 252.167951][ T6657] get_tree_bdev+0x3e6/0x610
[ 252.172564][ T6657] ? gfs2_reconfigure+0xd80/0xd80
[ 252.177608][ T6657] gfs2_get_tree+0x4d/0x1e0
[ 252.182140][ T6657] vfs_get_tree+0x88/0x270
[ 252.186573][ T6657] do_new_mount+0x247/0xa40
[ 252.191266][ T6657] __se_sys_mount+0x2e3/0x3d0
[ 252.196054][ T6657] ? __x64_sys_mount+0xc0/0xc0
[ 252.200824][ T6657] ? lockdep_hardirqs_on+0x94/0x140
[ 252.206039][ T6657] ? __x64_sys_mount+0x1c/0xc0
[ 252.210824][ T6657] do_syscall_64+0x4c/0xa0
[ 252.215263][ T6657] ? clear_bhb_loop+0x30/0x80
[ 252.219958][ T6657] ? clear_bhb_loop+0x30/0x80
[ 252.224657][ T6657] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.230577][ T6657] RIP: 0033:0x7f4fcb6ad60a
[ 252.235012][ T6657] 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
[ 252.254837][ T6657] RSP: 002b:00007f4fcad0fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.263250][ T6657] RAX: ffffffffffffffda RBX: 00007f4fcad0fee0 RCX: 00007f4fcb6ad60a
[ 252.271302][ T6657] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4fcad0fea0
[ 252.279441][ T6657] RBP: 0000200000000400 R08: 00007f4fcad0fee0 R09: 0000000000000000
[ 252.287578][ T6657] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.295639][ T6657] R13: 00007f4fcad0fea0 R14: 00000000000125ed R15: 0000200000000640
[ 252.303982][ T6657]
[ 252.307824][ T6657] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.321928][ T6657] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.332887][ T6650] CPU: 1 PID: 6650 Comm: syz.5.462 Not tainted syzkaller #0
[ 252.340469][ T6650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 252.350721][ T6650] Call Trace:
[ 252.354012][ T6650]
[ 252.356954][ T6650] dump_stack_lvl+0x188/0x250
[ 252.361660][ T6650] ? show_regs_print_info+0x20/0x20
[ 252.367084][ T6650] ? load_image+0x410/0x410
[ 252.371716][ T6650] sysfs_create_dir_ns+0x26a/0x290
[ 252.377110][ T6650] ? sysfs_warn_dup+0xa0/0xa0
[ 252.381894][ T6650] ? do_raw_spin_unlock+0x11d/0x230
[ 252.387300][ T6650] kobject_add_internal+0x5ba/0xcd0
[ 252.392702][ T6650] kobject_init_and_add+0x128/0x190
[ 252.398360][ T6650] ? lockdep_softirqs_off+0x430/0x430
[ 252.403952][ T6650] ? kobject_add+0x230/0x230
[ 252.409539][ T6650] ? __init_swait_queue_head+0xa4/0x140
[ 252.417289][ T6650] gfs2_sys_fs_add+0x24f/0x4b0
[ 252.422167][ T6650] ? gfs2_recover_set+0x240/0x240
[ 252.427226][ T6650] ? snprintf+0xe5/0x140
[ 252.431588][ T6650] ? __free_pages+0x95/0x1a0
[ 252.436209][ T6650] ? vscnprintf+0x80/0x80
[ 252.441016][ T6650] gfs2_fill_super+0x11ed/0x1ea0
[ 252.446101][ T6650] ? gfs2_reconfigure+0xd80/0xd80
[ 252.451253][ T6650] ? sb_set_blocksize+0xa5/0xe0
[ 252.456226][ T6650] get_tree_bdev+0x3e6/0x610
[ 252.460840][ T6650] ? gfs2_reconfigure+0xd80/0xd80
[ 252.466065][ T6650] gfs2_get_tree+0x4d/0x1e0
[ 252.471131][ T6650] vfs_get_tree+0x88/0x270
[ 252.475669][ T6650] do_new_mount+0x247/0xa40
[ 252.480210][ T6650] __se_sys_mount+0x2e3/0x3d0
[ 252.485864][ T6650] ? __x64_sys_mount+0xc0/0xc0
[ 252.490795][ T6650] ? lockdep_hardirqs_on+0x94/0x140
[ 252.496021][ T6650] ? __x64_sys_mount+0x1c/0xc0
[ 252.500900][ T6650] do_syscall_64+0x4c/0xa0
[ 252.505329][ T6650] ? clear_bhb_loop+0x30/0x80
[ 252.510117][ T6650] ? clear_bhb_loop+0x30/0x80
[ 252.514805][ T6650] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.520852][ T6650] RIP: 0033:0x7f578030a60a
[ 252.525285][ T6650] 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
[ 252.545063][ T6650] RSP: 002b:00007f577f94be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.553609][ T6650] RAX: ffffffffffffffda RBX: 00007f577f94bee0 RCX: 00007f578030a60a
[ 252.561596][ T6650] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f577f94bea0
[ 252.569574][ T6650] RBP: 0000200000000400 R08: 00007f577f94bee0 R09: 0000000000000000
[ 252.577555][ T6650] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.585533][ T6650] R13: 00007f577f94bea0 R14: 00000000000125ed R15: 0000200000000640
[ 252.593709][ T6650]
[ 252.627025][ T6650] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.651189][ T6647] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.721893][ T6647] CPU: 1 PID: 6647 Comm: syz.4.463 Not tainted syzkaller #0
[ 252.729871][ T6647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 252.740060][ T6647] Call Trace:
[ 252.743444][ T6647]
[ 252.746383][ T6647] dump_stack_lvl+0x188/0x250
[ 252.751070][ T6647] ? show_regs_print_info+0x20/0x20
[ 252.756267][ T6647] ? load_image+0x410/0x410
[ 252.760790][ T6647] sysfs_create_dir_ns+0x26a/0x290
[ 252.765920][ T6647] ? sysfs_warn_dup+0xa0/0xa0
[ 252.770626][ T6647] ? do_raw_spin_unlock+0x11d/0x230
[ 252.775839][ T6647] kobject_add_internal+0x5ba/0xcd0
[ 252.781067][ T6647] kobject_init_and_add+0x128/0x190
[ 252.786311][ T6647] ? lockdep_softirqs_off+0x430/0x430
[ 252.791883][ T6647] ? kobject_add+0x230/0x230
[ 252.796672][ T6647] ? __init_swait_queue_head+0xa4/0x140
[ 252.802515][ T6647] gfs2_sys_fs_add+0x24f/0x4b0
[ 252.807297][ T6647] ? gfs2_recover_set+0x240/0x240
[ 252.812597][ T6647] ? snprintf+0xe5/0x140
[ 252.817095][ T6647] ? __free_pages+0x95/0x1a0
[ 252.821704][ T6647] ? vscnprintf+0x80/0x80
[ 252.826147][ T6647] gfs2_fill_super+0x11ed/0x1ea0
[ 252.831167][ T6647] ? gfs2_reconfigure+0xd80/0xd80
[ 252.836501][ T6647] ? sb_set_blocksize+0xa5/0xe0
[ 252.841587][ T6647] get_tree_bdev+0x3e6/0x610
[ 252.846203][ T6647] ? gfs2_reconfigure+0xd80/0xd80
[ 252.851240][ T6647] gfs2_get_tree+0x4d/0x1e0
[ 252.855849][ T6647] vfs_get_tree+0x88/0x270
[ 252.860307][ T6647] do_new_mount+0x247/0xa40
[ 252.864975][ T6647] __se_sys_mount+0x2e3/0x3d0
[ 252.869793][ T6647] ? __x64_sys_mount+0xc0/0xc0
[ 252.874580][ T6647] ? lockdep_hardirqs_on+0x94/0x140
[ 252.879828][ T6647] ? __x64_sys_mount+0x1c/0xc0
[ 252.884604][ T6647] do_syscall_64+0x4c/0xa0
[ 252.889117][ T6647] ? clear_bhb_loop+0x30/0x80
[ 252.893899][ T6647] ? clear_bhb_loop+0x30/0x80
[ 252.898597][ T6647] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.904598][ T6647] RIP: 0033:0x7fd7912ad60a
[ 252.909213][ T6647] 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
[ 252.928949][ T6647] RSP: 002b:00007fd79090fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.937898][ T6647] RAX: ffffffffffffffda RBX: 00007fd79090fee0 RCX: 00007fd7912ad60a
[ 252.945901][ T6647] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fd79090fea0
[ 252.954365][ T6647] RBP: 0000200000000400 R08: 00007fd79090fee0 R09: 0000000000000000
[ 252.962444][ T6647] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.970434][ T6647] R13: 00007fd79090fea0 R14: 00000000000125ed R15: 0000200000000640
[ 252.978604][ T6647]
[ 253.081883][ T6650] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 253.141684][ T6647] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.219591][ T6647] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 253.421500][ T6672] set_capacity_and_notify: 3 callbacks suppressed
[ 253.421515][ T6672] loop1: detected capacity change from 0 to 32768
[ 253.476624][ T6672] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.484264][ T6672] CPU: 1 PID: 6672 Comm: syz.1.473 Not tainted syzkaller #0
[ 253.491572][ T6672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 253.502038][ T6672] Call Trace:
[ 253.505330][ T6672]
[ 253.508263][ T6672] dump_stack_lvl+0x188/0x250
[ 253.512966][ T6672] ? show_regs_print_info+0x20/0x20
[ 253.518438][ T6672] ? load_image+0x410/0x410
[ 253.522996][ T6672] sysfs_create_dir_ns+0x26a/0x290
[ 253.528133][ T6672] ? sysfs_warn_dup+0xa0/0xa0
[ 253.532829][ T6672] ? do_raw_spin_unlock+0x11d/0x230
[ 253.538047][ T6672] kobject_add_internal+0x5ba/0xcd0
[ 253.543352][ T6672] kobject_init_and_add+0x128/0x190
[ 253.548623][ T6672] ? lockdep_softirqs_off+0x430/0x430
[ 253.554140][ T6672] ? kobject_add+0x230/0x230
[ 253.558764][ T6672] ? __init_swait_queue_head+0xa4/0x140
[ 253.564835][ T6672] gfs2_sys_fs_add+0x24f/0x4b0
[ 253.570058][ T6672] ? gfs2_recover_set+0x240/0x240
[ 253.575209][ T6672] ? snprintf+0xe5/0x140
[ 253.579466][ T6672] ? __free_pages+0x95/0x1a0
[ 253.584066][ T6672] ? vscnprintf+0x80/0x80
[ 253.588518][ T6672] gfs2_fill_super+0x11ed/0x1ea0
[ 253.593667][ T6672] ? gfs2_reconfigure+0xd80/0xd80
[ 253.598759][ T6672] ? sb_set_blocksize+0xa5/0xe0
[ 253.603618][ T6672] get_tree_bdev+0x3e6/0x610
[ 253.608392][ T6672] ? gfs2_reconfigure+0xd80/0xd80
[ 253.613430][ T6672] gfs2_get_tree+0x4d/0x1e0
[ 253.617957][ T6672] vfs_get_tree+0x88/0x270
[ 253.622496][ T6672] do_new_mount+0x247/0xa40
[ 253.627026][ T6672] __se_sys_mount+0x2e3/0x3d0
[ 253.631956][ T6672] ? __x64_sys_mount+0xc0/0xc0
[ 253.637095][ T6672] ? lockdep_hardirqs_on+0x94/0x140
[ 253.642309][ T6672] ? __x64_sys_mount+0x1c/0xc0
[ 253.647189][ T6672] do_syscall_64+0x4c/0xa0
[ 253.651625][ T6672] ? clear_bhb_loop+0x30/0x80
[ 253.656333][ T6672] ? clear_bhb_loop+0x30/0x80
[ 253.661032][ T6672] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 253.666938][ T6672] RIP: 0033:0x7f6a34f1560a
[ 253.671375][ T6672] 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
[ 253.691961][ T6672] RSP: 002b:00007f6a34577e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.701062][ T6672] RAX: ffffffffffffffda RBX: 00007f6a34577ee0 RCX: 00007f6a34f1560a
[ 253.709195][ T6672] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f6a34577ea0
[ 253.717380][ T6672] RBP: 0000200000000400 R08: 00007f6a34577ee0 R09: 0000000000000000
[ 253.725498][ T6672] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 253.733655][ T6672] R13: 00007f6a34577ea0 R14: 00000000000125ed R15: 0000200000000640
[ 253.741735][ T6672]
[ 253.745941][ T6672] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.759292][ T6672] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 253.774055][ T6674] loop5: detected capacity change from 0 to 32768
[ 253.942927][ T6674] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.951502][ T6674] CPU: 0 PID: 6674 Comm: syz.5.474 Not tainted syzkaller #0
[ 253.958998][ T6674] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 253.969071][ T6674] Call Trace:
[ 253.972797][ T6674]
[ 253.975742][ T6674] dump_stack_lvl+0x188/0x250
[ 253.980449][ T6674] ? show_regs_print_info+0x20/0x20
[ 253.985671][ T6674] ? load_image+0x410/0x410
[ 253.990198][ T6674] sysfs_create_dir_ns+0x26a/0x290
[ 253.995322][ T6674] ? sysfs_warn_dup+0xa0/0xa0
[ 254.000013][ T6674] ? do_raw_spin_unlock+0x11d/0x230
[ 254.005227][ T6674] kobject_add_internal+0x5ba/0xcd0
[ 254.010667][ T6674] kobject_init_and_add+0x128/0x190
[ 254.015880][ T6674] ? lockdep_softirqs_off+0x430/0x430
[ 254.021265][ T6674] ? kobject_add+0x230/0x230
[ 254.025891][ T6674] ? __init_swait_queue_head+0xa4/0x140
[ 254.031463][ T6674] gfs2_sys_fs_add+0x24f/0x4b0
[ 254.036249][ T6674] ? gfs2_recover_set+0x240/0x240
[ 254.041285][ T6674] ? snprintf+0xe5/0x140
[ 254.045537][ T6674] ? __free_pages+0x95/0x1a0
[ 254.050227][ T6674] ? vscnprintf+0x80/0x80
[ 254.054754][ T6674] gfs2_fill_super+0x11ed/0x1ea0
[ 254.059965][ T6674] ? gfs2_reconfigure+0xd80/0xd80
[ 254.065033][ T6674] ? sb_set_blocksize+0xa5/0xe0
[ 254.069977][ T6674] get_tree_bdev+0x3e6/0x610
[ 254.074581][ T6674] ? gfs2_reconfigure+0xd80/0xd80
[ 254.079612][ T6674] gfs2_get_tree+0x4d/0x1e0
[ 254.084126][ T6674] vfs_get_tree+0x88/0x270
[ 254.088641][ T6674] do_new_mount+0x247/0xa40
[ 254.093346][ T6674] __se_sys_mount+0x2e3/0x3d0
[ 254.098130][ T6674] ? __x64_sys_mount+0xc0/0xc0
[ 254.102900][ T6674] ? lockdep_hardirqs_on+0x94/0x140
[ 254.108198][ T6674] ? __x64_sys_mount+0x1c/0xc0
[ 254.112981][ T6674] do_syscall_64+0x4c/0xa0
[ 254.117425][ T6674] ? clear_bhb_loop+0x30/0x80
[ 254.122233][ T6674] ? clear_bhb_loop+0x30/0x80
[ 254.127365][ T6674] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 254.133265][ T6674] RIP: 0033:0x7f578030a60a
[ 254.137688][ T6674] 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
[ 254.157526][ T6674] RSP: 002b:00007f577f96ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.165957][ T6674] RAX: ffffffffffffffda RBX: 00007f577f96cee0 RCX: 00007f578030a60a
[ 254.174034][ T6674] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f577f96cea0
[ 254.182380][ T6674] RBP: 0000200000000400 R08: 00007f577f96cee0 R09: 0000000000000000
[ 254.190649][ T6674] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 254.198666][ T6674] R13: 00007f577f96cea0 R14: 00000000000125ed R15: 0000200000000640
[ 254.206930][ T6674]
[ 254.210228][ T6674] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.223473][ T6674] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.304329][ T6664] loop3: detected capacity change from 0 to 32768
[ 254.444321][ T6664] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.527741][ T6680] loop1: detected capacity change from 0 to 32768
[ 254.537305][ T6664] CPU: 1 PID: 6664 Comm: syz.3.470 Not tainted syzkaller #0
[ 254.544638][ T6664] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 254.554718][ T6664] Call Trace:
[ 254.558006][ T6664]
[ 254.560952][ T6664] dump_stack_lvl+0x188/0x250
[ 254.565750][ T6664] ? show_regs_print_info+0x20/0x20
[ 254.571100][ T6664] ? load_image+0x410/0x410
[ 254.575734][ T6664] sysfs_create_dir_ns+0x26a/0x290
[ 254.580943][ T6664] ? sysfs_warn_dup+0xa0/0xa0
[ 254.585643][ T6664] ? do_raw_spin_unlock+0x11d/0x230
[ 254.591119][ T6664] kobject_add_internal+0x5ba/0xcd0
[ 254.596422][ T6664] kobject_init_and_add+0x128/0x190
[ 254.601716][ T6664] ? lockdep_softirqs_off+0x430/0x430
[ 254.607100][ T6664] ? kobject_add+0x230/0x230
[ 254.611701][ T6664] ? __init_swait_queue_head+0xa4/0x140
[ 254.617264][ T6664] gfs2_sys_fs_add+0x24f/0x4b0
[ 254.622139][ T6664] ? gfs2_recover_set+0x240/0x240
[ 254.627273][ T6664] ? snprintf+0xe5/0x140
[ 254.631620][ T6664] ? __free_pages+0x95/0x1a0
[ 254.636268][ T6664] ? vscnprintf+0x80/0x80
[ 254.640727][ T6664] gfs2_fill_super+0x11ed/0x1ea0
[ 254.645779][ T6664] ? gfs2_reconfigure+0xd80/0xd80
[ 254.650854][ T6664] ? sb_set_blocksize+0xa5/0xe0
[ 254.655922][ T6664] get_tree_bdev+0x3e6/0x610
[ 254.660535][ T6664] ? gfs2_reconfigure+0xd80/0xd80
[ 254.665579][ T6664] gfs2_get_tree+0x4d/0x1e0
[ 254.670104][ T6664] vfs_get_tree+0x88/0x270
[ 254.674540][ T6664] do_new_mount+0x247/0xa40
[ 254.679067][ T6664] __se_sys_mount+0x2e3/0x3d0
[ 254.683763][ T6664] ? __x64_sys_mount+0xc0/0xc0
[ 254.688714][ T6664] ? lockdep_hardirqs_on+0x94/0x140
[ 254.693989][ T6664] ? __x64_sys_mount+0x1c/0xc0
[ 254.698784][ T6664] do_syscall_64+0x4c/0xa0
[ 254.703393][ T6664] ? clear_bhb_loop+0x30/0x80
[ 254.708179][ T6664] ? clear_bhb_loop+0x30/0x80
[ 254.712892][ T6664] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 254.718881][ T6664] RIP: 0033:0x7f21c259360a
[ 254.723301][ T6664] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 254.743185][ T6664] RSP: 002b:00007f21c1bb3e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.747719][ T6684] loop5: detected capacity change from 0 to 32768
[ 254.751633][ T6664] RAX: ffffffffffffffda RBX: 00007f21c1bb3ee0 RCX: 00007f21c259360a
[ 254.751647][ T6664] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f21c1bb3ea0
[ 254.751657][ T6664] RBP: 0000200000000400 R08: 00007f21c1bb3ee0 R09: 0000000000000000
[ 254.751667][ T6664] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 254.751677][ T6664] R13: 00007f21c1bb3ea0 R14: 00000000000125ed R15: 0000200000000640
[ 254.751701][ T6664]
[ 254.776808][ T6664] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.830822][ T6664] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.838726][ T6680] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.846316][ T6680] CPU: 1 PID: 6680 Comm: syz.1.477 Not tainted syzkaller #0
[ 254.853615][ T6680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 254.863693][ T6680] Call Trace:
[ 254.867070][ T6680]
[ 254.870005][ T6680] dump_stack_lvl+0x188/0x250
[ 254.874699][ T6680] ? show_regs_print_info+0x20/0x20
[ 254.879918][ T6680] ? load_image+0x410/0x410
[ 254.884454][ T6680] sysfs_create_dir_ns+0x26a/0x290
[ 254.889776][ T6680] ? sysfs_warn_dup+0xa0/0xa0
[ 254.894654][ T6680] ? do_raw_spin_unlock+0x11d/0x230
[ 254.899873][ T6680] kobject_add_internal+0x5ba/0xcd0
[ 254.905159][ T6680] kobject_init_and_add+0x128/0x190
[ 254.910375][ T6680] ? lockdep_softirqs_off+0x430/0x430
[ 254.915798][ T6680] ? kobject_add+0x230/0x230
[ 254.920596][ T6680] ? __init_swait_queue_head+0xa4/0x140
[ 254.926177][ T6680] gfs2_sys_fs_add+0x24f/0x4b0
[ 254.930965][ T6680] ? gfs2_recover_set+0x240/0x240
[ 254.936013][ T6680] ? snprintf+0xe5/0x140
[ 254.940272][ T6680] ? __free_pages+0x95/0x1a0
[ 254.944890][ T6680] ? vscnprintf+0x80/0x80
[ 254.949258][ T6680] gfs2_fill_super+0x11ed/0x1ea0
[ 254.954236][ T6680] ? gfs2_reconfigure+0xd80/0xd80
[ 254.959313][ T6680] ? sb_set_blocksize+0xa5/0xe0
[ 254.964196][ T6680] get_tree_bdev+0x3e6/0x610
[ 254.968805][ T6680] ? gfs2_reconfigure+0xd80/0xd80
[ 254.973844][ T6680] gfs2_get_tree+0x4d/0x1e0
[ 254.978395][ T6680] vfs_get_tree+0x88/0x270
[ 254.982922][ T6680] do_new_mount+0x247/0xa40
[ 254.987448][ T6680] __se_sys_mount+0x2e3/0x3d0
[ 254.992139][ T6680] ? __x64_sys_mount+0xc0/0xc0
[ 254.997019][ T6680] ? lockdep_hardirqs_on+0x94/0x140
[ 255.002332][ T6680] ? __x64_sys_mount+0x1c/0xc0
[ 255.007233][ T6680] do_syscall_64+0x4c/0xa0
[ 255.011637][ T6680] ? clear_bhb_loop+0x30/0x80
[ 255.016390][ T6680] ? clear_bhb_loop+0x30/0x80
[ 255.021060][ T6680] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.026951][ T6680] RIP: 0033:0x7f6a34f1560a
[ 255.031378][ T6680] 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
[ 255.051125][ T6680] RSP: 002b:00007f6a34577e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.059554][ T6680] RAX: ffffffffffffffda RBX: 00007f6a34577ee0 RCX: 00007f6a34f1560a
[ 255.067519][ T6680] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f6a34577ea0
[ 255.075482][ T6680] RBP: 0000200000000400 R08: 00007f6a34577ee0 R09: 0000000000000000
[ 255.083452][ T6680] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 255.091536][ T6680] R13: 00007f6a34577ea0 R14: 00000000000125ed R15: 0000200000000640
[ 255.099941][ T6680]
[ 255.103956][ T6680] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.117269][ T6680] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.137989][ T6684] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.145546][ T6684] CPU: 0 PID: 6684 Comm: syz.5.478 Not tainted syzkaller #0
[ 255.152872][ T6684] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 255.163029][ T6684] Call Trace:
[ 255.166427][ T6684]
[ 255.169375][ T6684] dump_stack_lvl+0x188/0x250
[ 255.174061][ T6684] ? show_regs_print_info+0x20/0x20
[ 255.179272][ T6684] ? load_image+0x410/0x410
[ 255.180329][ T6670] loop0: detected capacity change from 0 to 32768
[ 255.183809][ T6684] sysfs_create_dir_ns+0x26a/0x290
[ 255.183834][ T6684] ? sysfs_warn_dup+0xa0/0xa0
[ 255.200008][ T6684] ? do_raw_spin_unlock+0x11d/0x230
[ 255.205311][ T6684] kobject_add_internal+0x5ba/0xcd0
[ 255.210525][ T6684] kobject_init_and_add+0x128/0x190
[ 255.215726][ T6684] ? lockdep_softirqs_off+0x430/0x430
[ 255.221118][ T6684] ? kobject_add+0x230/0x230
[ 255.226072][ T6684] ? __init_swait_queue_head+0xa4/0x140
[ 255.231647][ T6684] gfs2_sys_fs_add+0x24f/0x4b0
[ 255.236511][ T6684] ? gfs2_recover_set+0x240/0x240
[ 255.241638][ T6684] ? snprintf+0xe5/0x140
[ 255.245884][ T6684] ? __free_pages+0x95/0x1a0
[ 255.250739][ T6684] ? vscnprintf+0x80/0x80
[ 255.255084][ T6684] gfs2_fill_super+0x11ed/0x1ea0
[ 255.260171][ T6684] ? gfs2_reconfigure+0xd80/0xd80
[ 255.265224][ T6684] ? sb_set_blocksize+0xa5/0xe0
[ 255.270266][ T6684] get_tree_bdev+0x3e6/0x610
[ 255.274874][ T6684] ? gfs2_reconfigure+0xd80/0xd80
[ 255.279941][ T6684] gfs2_get_tree+0x4d/0x1e0
[ 255.284462][ T6684] vfs_get_tree+0x88/0x270
[ 255.288906][ T6684] do_new_mount+0x247/0xa40
[ 255.293448][ T6684] __se_sys_mount+0x2e3/0x3d0
[ 255.298154][ T6684] ? __x64_sys_mount+0xc0/0xc0
[ 255.303027][ T6684] ? lockdep_hardirqs_on+0x94/0x140
[ 255.308417][ T6684] ? __x64_sys_mount+0x1c/0xc0
[ 255.313208][ T6684] do_syscall_64+0x4c/0xa0
[ 255.317643][ T6684] ? clear_bhb_loop+0x30/0x80
[ 255.322334][ T6684] ? clear_bhb_loop+0x30/0x80
[ 255.327024][ T6684] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.333024][ T6684] RIP: 0033:0x7f578030a60a
[ 255.337540][ T6684] 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
[ 255.357347][ T6684] RSP: 002b:00007f577f96ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.365796][ T6684] RAX: ffffffffffffffda RBX: 00007f577f96cee0 RCX: 00007f578030a60a
[ 255.374206][ T6684] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f577f96cea0
[ 255.382207][ T6684] RBP: 0000200000000400 R08: 00007f577f96cee0 R09: 0000000000000000
[ 255.390278][ T6684] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 255.398492][ T6684] R13: 00007f577f96cea0 R14: 00000000000125ed R15: 0000200000000640
[ 255.406503][ T6684]
[ 255.410783][ T6684] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.425179][ T6684] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.476561][ T6670] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.531503][ T6670] CPU: 0 PID: 6670 Comm: syz.0.471 Not tainted syzkaller #0
[ 255.538975][ T6670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 255.549135][ T6670] Call Trace:
[ 255.552428][ T6670]
[ 255.555371][ T6670] dump_stack_lvl+0x188/0x250
[ 255.560101][ T6670] ? show_regs_print_info+0x20/0x20
[ 255.565408][ T6670] ? load_image+0x410/0x410
[ 255.570034][ T6670] sysfs_create_dir_ns+0x26a/0x290
[ 255.575161][ T6670] ? sysfs_warn_dup+0xa0/0xa0
[ 255.579846][ T6670] ? do_raw_spin_unlock+0x11d/0x230
[ 255.585143][ T6670] kobject_add_internal+0x5ba/0xcd0
[ 255.590352][ T6670] kobject_init_and_add+0x128/0x190
[ 255.595572][ T6670] ? lockdep_softirqs_off+0x430/0x430
[ 255.600968][ T6670] ? kobject_add+0x230/0x230
[ 255.605584][ T6670] ? __init_swait_queue_head+0xa4/0x140
[ 255.611156][ T6670] gfs2_sys_fs_add+0x24f/0x4b0
[ 255.615951][ T6670] ? gfs2_recover_set+0x240/0x240
[ 255.621010][ T6670] ? snprintf+0xe5/0x140
[ 255.625361][ T6670] ? __free_pages+0x95/0x1a0
[ 255.630210][ T6670] ? vscnprintf+0x80/0x80
[ 255.634754][ T6670] gfs2_fill_super+0x11ed/0x1ea0
[ 255.639727][ T6670] ? gfs2_reconfigure+0xd80/0xd80
[ 255.644967][ T6670] ? sb_set_blocksize+0xa5/0xe0
[ 255.649865][ T6670] get_tree_bdev+0x3e6/0x610
[ 255.654566][ T6670] ? gfs2_reconfigure+0xd80/0xd80
[ 255.659618][ T6670] gfs2_get_tree+0x4d/0x1e0
[ 255.664175][ T6670] vfs_get_tree+0x88/0x270
[ 255.668606][ T6670] do_new_mount+0x247/0xa40
[ 255.673148][ T6670] __se_sys_mount+0x2e3/0x3d0
[ 255.677934][ T6670] ? __x64_sys_mount+0xc0/0xc0
[ 255.682747][ T6670] ? lockdep_hardirqs_on+0x94/0x140
[ 255.688607][ T6670] ? __x64_sys_mount+0x1c/0xc0
[ 255.693476][ T6670] do_syscall_64+0x4c/0xa0
[ 255.698129][ T6670] ? clear_bhb_loop+0x30/0x80
[ 255.702896][ T6670] ? clear_bhb_loop+0x30/0x80
[ 255.707593][ T6670] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.713503][ T6670] RIP: 0033:0x7f4fcb6ad60a
[ 255.717932][ T6670] 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
[ 255.730277][ T6686] loop3: detected capacity change from 0 to 32768
[ 255.737733][ T6670] RSP: 002b:00007f4fcaceee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.737755][ T6670] RAX: ffffffffffffffda RBX: 00007f4fcaceeee0 RCX: 00007f4fcb6ad60a
[ 255.737767][ T6670] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4fcaceeea0
[ 255.737778][ T6670] RBP: 0000200000000400 R08: 00007f4fcaceeee0 R09: 0000000000000000
[ 255.776700][ T6670] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 255.784784][ T6670] R13: 00007f4fcaceeea0 R14: 00000000000125ed R15: 0000200000000640
[ 255.792836][ T6670]
[ 255.801809][ T1422] ieee802154 phy0 wpan0: encryption failed: -22
[ 255.808295][ T1422] ieee802154 phy1 wpan1: encryption failed: -22
[ 255.850669][ T6681] loop4: detected capacity change from 0 to 32768
[ 255.946915][ T6670] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.961244][ T6686] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.968680][ T6686] CPU: 1 PID: 6686 Comm: syz.3.479 Not tainted syzkaller #0
[ 255.976157][ T6686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 255.986580][ T6686] Call Trace:
[ 255.989864][ T6686]
[ 255.992902][ T6686] dump_stack_lvl+0x188/0x250
[ 255.997599][ T6686] ? show_regs_print_info+0x20/0x20
[ 256.002812][ T6686] ? load_image+0x410/0x410
[ 256.007701][ T6686] sysfs_create_dir_ns+0x26a/0x290
[ 256.012956][ T6686] ? sysfs_warn_dup+0xa0/0xa0
[ 256.017648][ T6686] ? do_raw_spin_unlock+0x11d/0x230
[ 256.022880][ T6686] kobject_add_internal+0x5ba/0xcd0
[ 256.028098][ T6686] kobject_init_and_add+0x128/0x190
[ 256.033317][ T6686] ? lockdep_softirqs_off+0x430/0x430
[ 256.038715][ T6686] ? kobject_add+0x230/0x230
[ 256.043346][ T6686] ? __init_swait_queue_head+0xa4/0x140
[ 256.048995][ T6686] gfs2_sys_fs_add+0x24f/0x4b0
[ 256.053787][ T6686] ? gfs2_recover_set+0x240/0x240
[ 256.058831][ T6686] ? snprintf+0xe5/0x140
[ 256.063205][ T6686] ? __free_pages+0x95/0x1a0
[ 256.067811][ T6686] ? vscnprintf+0x80/0x80
[ 256.072268][ T6686] gfs2_fill_super+0x11ed/0x1ea0
[ 256.077311][ T6686] ? gfs2_reconfigure+0xd80/0xd80
[ 256.082480][ T6686] ? sb_set_blocksize+0xa5/0xe0
[ 256.087340][ T6686] get_tree_bdev+0x3e6/0x610
[ 256.091941][ T6686] ? gfs2_reconfigure+0xd80/0xd80
[ 256.096977][ T6686] gfs2_get_tree+0x4d/0x1e0
[ 256.101763][ T6686] vfs_get_tree+0x88/0x270
[ 256.106191][ T6686] do_new_mount+0x247/0xa40
[ 256.110874][ T6686] __se_sys_mount+0x2e3/0x3d0
[ 256.115618][ T6686] ? __x64_sys_mount+0xc0/0xc0
[ 256.120481][ T6686] ? lockdep_hardirqs_on+0x94/0x140
[ 256.125682][ T6686] ? __x64_sys_mount+0x1c/0xc0
[ 256.130485][ T6686] do_syscall_64+0x4c/0xa0
[ 256.134956][ T6686] ? clear_bhb_loop+0x30/0x80
[ 256.139650][ T6686] ? clear_bhb_loop+0x30/0x80
[ 256.144438][ T6686] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 256.150352][ T6686] RIP: 0033:0x7f21c259360a
[ 256.155025][ T6686] 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
[ 256.175177][ T6686] RSP: 002b:00007f21c1bf5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.183600][ T6686] RAX: ffffffffffffffda RBX: 00007f21c1bf5ee0 RCX: 00007f21c259360a
[ 256.191675][ T6686] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f21c1bf5ea0
[ 256.199657][ T6686] RBP: 0000200000000400 R08: 00007f21c1bf5ee0 R09: 0000000000000000
[ 256.207798][ T6686] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 256.215810][ T6686] R13: 00007f21c1bf5ea0 R14: 00000000000125ed R15: 0000200000000640
[ 256.223915][ T6686]
[ 256.227033][ T6686] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.240316][ T6686] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.311580][ T6670] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.474252][ T6681] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.496113][ T6693] loop1: detected capacity change from 0 to 32768
[ 256.561710][ T6681] CPU: 0 PID: 6681 Comm: syz.4.476 Not tainted syzkaller #0
[ 256.569075][ T6681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 256.579150][ T6681] Call Trace:
[ 256.582455][ T6681]
[ 256.585386][ T6681] dump_stack_lvl+0x188/0x250
[ 256.590074][ T6681] ? show_regs_print_info+0x20/0x20
[ 256.595275][ T6681] ? load_image+0x410/0x410
[ 256.599809][ T6681] sysfs_create_dir_ns+0x26a/0x290
[ 256.604939][ T6681] ? sysfs_warn_dup+0xa0/0xa0
[ 256.609809][ T6681] ? do_raw_spin_unlock+0x11d/0x230
[ 256.615207][ T6681] kobject_add_internal+0x5ba/0xcd0
[ 256.620435][ T6681] kobject_init_and_add+0x128/0x190
[ 256.625656][ T6681] ? lockdep_softirqs_off+0x430/0x430
[ 256.631153][ T6681] ? kobject_add+0x230/0x230
[ 256.635856][ T6681] ? __init_swait_queue_head+0xa4/0x140
[ 256.641572][ T6681] gfs2_sys_fs_add+0x24f/0x4b0
[ 256.646603][ T6681] ? gfs2_recover_set+0x240/0x240
[ 256.651653][ T6681] ? snprintf+0xe5/0x140
[ 256.656003][ T6681] ? __free_pages+0x95/0x1a0
[ 256.660615][ T6681] ? vscnprintf+0x80/0x80
[ 256.664987][ T6681] gfs2_fill_super+0x11ed/0x1ea0
[ 256.670175][ T6681] ? gfs2_reconfigure+0xd80/0xd80
[ 256.675398][ T6681] ? sb_set_blocksize+0xa5/0xe0
[ 256.680265][ T6681] get_tree_bdev+0x3e6/0x610
[ 256.685046][ T6681] ? gfs2_reconfigure+0xd80/0xd80
[ 256.690369][ T6681] gfs2_get_tree+0x4d/0x1e0
[ 256.695166][ T6681] vfs_get_tree+0x88/0x270
[ 256.699679][ T6681] do_new_mount+0x247/0xa40
[ 256.704219][ T6681] __se_sys_mount+0x2e3/0x3d0
[ 256.708915][ T6681] ? __x64_sys_mount+0xc0/0xc0
[ 256.713696][ T6681] ? lockdep_hardirqs_on+0x94/0x140
[ 256.718911][ T6681] ? __x64_sys_mount+0x1c/0xc0
[ 256.723745][ T6681] do_syscall_64+0x4c/0xa0
[ 256.728169][ T6681] ? clear_bhb_loop+0x30/0x80
[ 256.732951][ T6681] ? clear_bhb_loop+0x30/0x80
[ 256.737963][ T6681] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 256.743984][ T6681] RIP: 0033:0x7fd7912ad60a
[ 256.748419][ T6681] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 256.768213][ T6681] RSP: 002b:00007fd79090fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.776652][ T6681] RAX: ffffffffffffffda RBX: 00007fd79090fee0 RCX: 00007fd7912ad60a
[ 256.784644][ T6681] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fd79090fea0
[ 256.792626][ T6681] RBP: 0000200000000400 R08: 00007fd79090fee0 R09: 0000000000000000
[ 256.800726][ T6681] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 256.808783][ T6681] R13: 00007fd79090fea0 R14: 00000000000125ed R15: 0000200000000640
[ 256.816792][ T6681]
[ 256.846411][ T6693] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.852441][ T6695] loop0: detected capacity change from 0 to 32768
[ 256.853900][ T6693] CPU: 0 PID: 6693 Comm: syz.1.482 Not tainted syzkaller #0
[ 256.867770][ T6693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 256.878189][ T6693] Call Trace:
[ 256.881482][ T6693]
[ 256.884422][ T6693] dump_stack_lvl+0x188/0x250
[ 256.889121][ T6693] ? show_regs_print_info+0x20/0x20
[ 256.894372][ T6693] ? load_image+0x410/0x410
[ 256.898909][ T6693] sysfs_create_dir_ns+0x26a/0x290
[ 256.904128][ T6693] ? sysfs_warn_dup+0xa0/0xa0
[ 256.908921][ T6693] ? do_raw_spin_unlock+0x11d/0x230
[ 256.914140][ T6693] kobject_add_internal+0x5ba/0xcd0
[ 256.919355][ T6693] kobject_init_and_add+0x128/0x190
[ 256.924577][ T6693] ? lockdep_softirqs_off+0x430/0x430
[ 256.931002][ T6693] ? kobject_add+0x230/0x230
[ 256.935621][ T6693] ? __init_swait_queue_head+0xa4/0x140
[ 256.941200][ T6693] gfs2_sys_fs_add+0x24f/0x4b0
[ 256.945993][ T6693] ? gfs2_recover_set+0x240/0x240
[ 256.951030][ T6693] ? snprintf+0xe5/0x140
[ 256.955306][ T6693] ? __free_pages+0x95/0x1a0
[ 256.960201][ T6693] ? vscnprintf+0x80/0x80
[ 256.964563][ T6693] gfs2_fill_super+0x11ed/0x1ea0
[ 256.969525][ T6693] ? gfs2_reconfigure+0xd80/0xd80
[ 256.974750][ T6693] ? sb_set_blocksize+0xa5/0xe0
[ 256.979673][ T6693] get_tree_bdev+0x3e6/0x610
[ 256.984281][ T6693] ? gfs2_reconfigure+0xd80/0xd80
[ 256.989671][ T6693] gfs2_get_tree+0x4d/0x1e0
[ 256.994198][ T6693] vfs_get_tree+0x88/0x270
[ 256.998645][ T6693] do_new_mount+0x247/0xa40
[ 257.003176][ T6693] __se_sys_mount+0x2e3/0x3d0
[ 257.007881][ T6693] ? __x64_sys_mount+0xc0/0xc0
[ 257.012660][ T6693] ? lockdep_hardirqs_on+0x94/0x140
[ 257.017988][ T6693] ? __x64_sys_mount+0x1c/0xc0
[ 257.022860][ T6693] do_syscall_64+0x4c/0xa0
[ 257.027287][ T6693] ? clear_bhb_loop+0x30/0x80
[ 257.032145][ T6693] ? clear_bhb_loop+0x30/0x80
[ 257.036939][ T6693] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.042880][ T6693] RIP: 0033:0x7f6a34f1560a
[ 257.044254][ T6681] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.047386][ T6693] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 257.060893][ T6681] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.080331][ T6693] RSP: 002b:00007f6a34577e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.080356][ T6693] RAX: ffffffffffffffda RBX: 00007f6a34577ee0 RCX: 00007f6a34f1560a
[ 257.080367][ T6693] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f6a34577ea0
[ 257.080376][ T6693] RBP: 0000200000000400 R08: 00007f6a34577ee0 R09: 0000000000000000
[ 257.080385][ T6693] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 257.080395][ T6693] R13: 00007f6a34577ea0 R14: 00000000000125ed R15: 0000200000000640
[ 257.080420][ T6693]
[ 257.081270][ T6693] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.154014][ T6693] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.218449][ T6695] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.226903][ T6695] CPU: 1 PID: 6695 Comm: syz.0.483 Not tainted syzkaller #0
[ 257.234468][ T6695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 257.244547][ T6695] Call Trace:
[ 257.247845][ T6695]
[ 257.250881][ T6695] dump_stack_lvl+0x188/0x250
[ 257.255582][ T6695] ? show_regs_print_info+0x20/0x20
[ 257.260886][ T6695] ? load_image+0x410/0x410
[ 257.265428][ T6695] sysfs_create_dir_ns+0x26a/0x290
[ 257.270649][ T6695] ? sysfs_warn_dup+0xa0/0xa0
[ 257.275444][ T6695] ? do_raw_spin_unlock+0x11d/0x230
[ 257.280668][ T6695] kobject_add_internal+0x5ba/0xcd0
[ 257.286007][ T6695] kobject_init_and_add+0x128/0x190
[ 257.291234][ T6695] ? lockdep_softirqs_off+0x430/0x430
[ 257.296844][ T6695] ? kobject_add+0x230/0x230
[ 257.301631][ T6695] ? __init_swait_queue_head+0xa4/0x140
[ 257.307200][ T6695] gfs2_sys_fs_add+0x24f/0x4b0
[ 257.312092][ T6695] ? gfs2_recover_set+0x240/0x240
[ 257.317134][ T6695] ? snprintf+0xe5/0x140
[ 257.321388][ T6695] ? __free_pages+0x95/0x1a0
[ 257.326092][ T6695] ? vscnprintf+0x80/0x80
[ 257.330451][ T6695] gfs2_fill_super+0x11ed/0x1ea0
[ 257.335424][ T6695] ? gfs2_reconfigure+0xd80/0xd80
[ 257.340648][ T6695] ? sb_set_blocksize+0xa5/0xe0
[ 257.345602][ T6695] get_tree_bdev+0x3e6/0x610
[ 257.350216][ T6695] ? gfs2_reconfigure+0xd80/0xd80
[ 257.355257][ T6695] gfs2_get_tree+0x4d/0x1e0
[ 257.359754][ T6695] vfs_get_tree+0x88/0x270
[ 257.364189][ T6695] do_new_mount+0x247/0xa40
[ 257.368701][ T6695] __se_sys_mount+0x2e3/0x3d0
[ 257.375513][ T6695] ? __x64_sys_mount+0xc0/0xc0
[ 257.380280][ T6695] ? lockdep_hardirqs_on+0x94/0x140
[ 257.385557][ T6695] ? __x64_sys_mount+0x1c/0xc0
[ 257.390416][ T6695] do_syscall_64+0x4c/0xa0
[ 257.394944][ T6695] ? clear_bhb_loop+0x30/0x80
[ 257.399787][ T6695] ? clear_bhb_loop+0x30/0x80
[ 257.404545][ T6695] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.410458][ T6695] RIP: 0033:0x7f4fcb6ad60a
[ 257.415229][ T6695] 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
[ 257.435208][ T6695] RSP: 002b:00007f4fcad0fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.443737][ T6695] RAX: ffffffffffffffda RBX: 00007f4fcad0fee0 RCX: 00007f4fcb6ad60a
[ 257.451974][ T6695] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4fcad0fea0
[ 257.460065][ T6695] RBP: 0000200000000400 R08: 00007f4fcad0fee0 R09: 0000000000000000
2026/10/04 14:29:49 executed programs: 477
[ 257.468306][ T6695] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 257.476266][ T6695] R13: 00007f4fcad0fea0 R14: 00000000000125ed R15: 0000200000000640
[ 257.484499][ T6695]
[ 257.489117][ T6695] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.502352][ T6695] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.767043][ T6690] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.831636][ T6690] CPU: 1 PID: 6690 Comm: syz.5.481 Not tainted syzkaller #0
[ 257.838978][ T6690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 257.849049][ T6690] Call Trace:
[ 257.852338][ T6690]
[ 257.855370][ T6690] dump_stack_lvl+0x188/0x250
[ 257.860065][ T6690] ? show_regs_print_info+0x20/0x20
[ 257.865279][ T6690] ? load_image+0x410/0x410
[ 257.869808][ T6690] sysfs_create_dir_ns+0x26a/0x290
[ 257.875012][ T6690] ? sysfs_warn_dup+0xa0/0xa0
[ 257.879744][ T6690] ? do_raw_spin_unlock+0x11d/0x230
[ 257.884959][ T6690] kobject_add_internal+0x5ba/0xcd0
[ 257.890214][ T6690] kobject_init_and_add+0x128/0x190
[ 257.895424][ T6690] ? lockdep_softirqs_off+0x430/0x430
[ 257.900917][ T6690] ? kobject_add+0x230/0x230
[ 257.905535][ T6690] ? __init_swait_queue_head+0xa4/0x140
[ 257.911295][ T6690] gfs2_sys_fs_add+0x24f/0x4b0
[ 257.916165][ T6690] ? gfs2_recover_set+0x240/0x240
[ 257.921212][ T6690] ? snprintf+0xe5/0x140
[ 257.925556][ T6690] ? __free_pages+0x95/0x1a0
[ 257.930276][ T6690] ? vscnprintf+0x80/0x80
[ 257.934633][ T6690] gfs2_fill_super+0x11ed/0x1ea0
[ 257.939770][ T6690] ? gfs2_reconfigure+0xd80/0xd80
[ 257.945106][ T6690] ? sb_set_blocksize+0xa5/0xe0
[ 257.950144][ T6690] get_tree_bdev+0x3e6/0x610
[ 257.954768][ T6690] ? gfs2_reconfigure+0xd80/0xd80
[ 257.959938][ T6690] gfs2_get_tree+0x4d/0x1e0
[ 257.964472][ T6690] vfs_get_tree+0x88/0x270
[ 257.968900][ T6690] do_new_mount+0x247/0xa40
[ 257.973427][ T6690] __se_sys_mount+0x2e3/0x3d0
[ 257.978117][ T6690] ? __x64_sys_mount+0xc0/0xc0
[ 257.982899][ T6690] ? lockdep_hardirqs_on+0x94/0x140
[ 257.988152][ T6690] ? __x64_sys_mount+0x1c/0xc0
[ 257.993019][ T6690] do_syscall_64+0x4c/0xa0
[ 257.997439][ T6690] ? clear_bhb_loop+0x30/0x80
[ 258.002212][ T6690] ? clear_bhb_loop+0x30/0x80
[ 258.006899][ T6690] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 258.012856][ T6690] RIP: 0033:0x7f578030a60a
[ 258.017281][ T6690] 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
[ 258.037425][ T6690] RSP: 002b:00007f577f96ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.045949][ T6690] RAX: ffffffffffffffda RBX: 00007f577f96cee0 RCX: 00007f578030a60a
[ 258.053930][ T6690] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f577f96cea0
[ 258.062000][ T6690] RBP: 0000200000000400 R08: 00007f577f96cee0 R09: 0000000000000000
[ 258.070080][ T6690] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 258.078142][ T6690] R13: 00007f577f96cea0 R14: 00000000000125ed R15: 0000200000000640
[ 258.086320][ T6690]
[ 258.141523][ T6690] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.186774][ T6698] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.194464][ T6698] CPU: 0 PID: 6698 Comm: syz.1.484 Not tainted syzkaller #0
[ 258.201757][ T6698] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 258.211821][ T6698] Call Trace:
[ 258.215110][ T6698]
[ 258.218063][ T6698] dump_stack_lvl+0x188/0x250
[ 258.222757][ T6698] ? show_regs_print_info+0x20/0x20
[ 258.228056][ T6698] ? load_image+0x410/0x410
[ 258.232587][ T6698] sysfs_create_dir_ns+0x26a/0x290
[ 258.237715][ T6698] ? sysfs_warn_dup+0xa0/0xa0
[ 258.242412][ T6698] ? do_raw_spin_unlock+0x11d/0x230
[ 258.247627][ T6698] kobject_add_internal+0x5ba/0xcd0
[ 258.253029][ T6698] kobject_init_and_add+0x128/0x190
[ 258.258272][ T6698] ? lockdep_softirqs_off+0x430/0x430
[ 258.263675][ T6698] ? kobject_add+0x230/0x230
[ 258.268287][ T6698] ? __init_swait_queue_head+0xa4/0x140
[ 258.273853][ T6698] gfs2_sys_fs_add+0x24f/0x4b0
[ 258.278634][ T6698] ? gfs2_recover_set+0x240/0x240
[ 258.283764][ T6698] ? snprintf+0xe5/0x140
[ 258.288041][ T6698] ? __free_pages+0x95/0x1a0
[ 258.292646][ T6698] ? vscnprintf+0x80/0x80
[ 258.297001][ T6698] gfs2_fill_super+0x11ed/0x1ea0
[ 258.301969][ T6698] ? gfs2_reconfigure+0xd80/0xd80
[ 258.307026][ T6698] ? sb_set_blocksize+0xa5/0xe0
[ 258.311888][ T6698] get_tree_bdev+0x3e6/0x610
[ 258.316590][ T6698] ? gfs2_reconfigure+0xd80/0xd80
[ 258.321631][ T6698] gfs2_get_tree+0x4d/0x1e0
[ 258.326146][ T6698] vfs_get_tree+0x88/0x270
[ 258.330573][ T6698] do_new_mount+0x247/0xa40
[ 258.335087][ T6698] __se_sys_mount+0x2e3/0x3d0
[ 258.339782][ T6698] ? __x64_sys_mount+0xc0/0xc0
[ 258.344557][ T6698] ? lockdep_hardirqs_on+0x94/0x140
[ 258.349768][ T6698] ? __x64_sys_mount+0x1c/0xc0
[ 258.354546][ T6698] do_syscall_64+0x4c/0xa0
[ 258.358980][ T6698] ? clear_bhb_loop+0x30/0x80
[ 258.363670][ T6698] ? clear_bhb_loop+0x30/0x80
[ 258.368228][ T6690] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.368444][ T6698] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 258.381073][ T6698] RIP: 0033:0x7f6a34f1560a
[ 258.385601][ T6698] 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
[ 258.405683][ T6698] RSP: 002b:00007f6a34577e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.414285][ T6698] RAX: ffffffffffffffda RBX: 00007f6a34577ee0 RCX: 00007f6a34f1560a
[ 258.422272][ T6698] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f6a34577ea0
[ 258.430563][ T6698] RBP: 0000200000000400 R08: 00007f6a34577ee0 R09: 0000000000000000
[ 258.438555][ T6698] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 258.446626][ T6698] R13: 00007f6a34577ea0 R14: 00000000000125ed R15: 0000200000000640
[ 258.454697][ T6698]
[ 258.458995][ T6698] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.472287][ T6698] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.493758][ T6703] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.501341][ T6703] CPU: 0 PID: 6703 Comm: syz.3.485 Not tainted syzkaller #0
[ 258.508641][ T6703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 258.518704][ T6703] Call Trace:
[ 258.521991][ T6703]
[ 258.524927][ T6703] dump_stack_lvl+0x188/0x250
[ 258.529616][ T6703] ? show_regs_print_info+0x20/0x20
[ 258.534827][ T6703] ? load_image+0x410/0x410
[ 258.539403][ T6703] sysfs_create_dir_ns+0x26a/0x290
[ 258.544536][ T6703] ? sysfs_warn_dup+0xa0/0xa0
[ 258.549236][ T6703] ? do_raw_spin_unlock+0x11d/0x230
[ 258.554447][ T6703] kobject_add_internal+0x5ba/0xcd0
[ 258.559666][ T6703] kobject_init_and_add+0x128/0x190
[ 258.564949][ T6703] ? lockdep_softirqs_off+0x430/0x430
[ 258.570327][ T6703] ? kobject_add+0x230/0x230
[ 258.575111][ T6703] ? __init_swait_queue_head+0xa4/0x140
[ 258.580694][ T6703] gfs2_sys_fs_add+0x24f/0x4b0
[ 258.585473][ T6703] ? gfs2_recover_set+0x240/0x240
[ 258.590514][ T6703] ? snprintf+0xe5/0x140
[ 258.594768][ T6703] ? __free_pages+0x95/0x1a0
[ 258.599374][ T6703] ? vscnprintf+0x80/0x80
[ 258.603908][ T6703] gfs2_fill_super+0x11ed/0x1ea0
[ 258.608963][ T6703] ? gfs2_reconfigure+0xd80/0xd80
[ 258.614024][ T6703] ? sb_set_blocksize+0xa5/0xe0
[ 258.618996][ T6703] get_tree_bdev+0x3e6/0x610
[ 258.623725][ T6703] ? gfs2_reconfigure+0xd80/0xd80
[ 258.628768][ T6703] gfs2_get_tree+0x4d/0x1e0
[ 258.633289][ T6703] vfs_get_tree+0x88/0x270
[ 258.637729][ T6703] do_new_mount+0x247/0xa40
[ 258.642264][ T6703] __se_sys_mount+0x2e3/0x3d0
[ 258.647142][ T6703] ? __x64_sys_mount+0xc0/0xc0
[ 258.651926][ T6703] ? lockdep_hardirqs_on+0x94/0x140
[ 258.657222][ T6703] ? __x64_sys_mount+0x1c/0xc0
[ 258.662284][ T6703] do_syscall_64+0x4c/0xa0
[ 258.666794][ T6703] ? clear_bhb_loop+0x30/0x80
[ 258.671509][ T6703] ? clear_bhb_loop+0x30/0x80
[ 258.676192][ T6703] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 258.682099][ T6703] RIP: 0033:0x7f21c259360a
[ 258.686523][ T6703] 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
[ 258.706314][ T6703] RSP: 002b:00007f21c1bf5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.714770][ T6703] RAX: ffffffffffffffda RBX: 00007f21c1bf5ee0 RCX: 00007f21c259360a
[ 258.722486][ T6699] set_capacity_and_notify: 3 callbacks suppressed
[ 258.722500][ T6699] loop4: detected capacity change from 0 to 32768
[ 258.722841][ T6703] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f21c1bf5ea0
[ 258.743609][ T6703] RBP: 0000200000000400 R08: 00007f21c1bf5ee0 R09: 0000000000000000
[ 258.751595][ T6703] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 258.759624][ T6703] R13: 00007f21c1bf5ea0 R14: 00000000000125ed R15: 0000200000000640
[ 258.767711][ T6703]
[ 258.771592][ T6703] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.785140][ T6703] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.812677][ T6705] loop0: detected capacity change from 0 to 32768
[ 258.857480][ T6699] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.865322][ T6699] CPU: 1 PID: 6699 Comm: syz.4.486 Not tainted syzkaller #0
[ 258.872649][ T6699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 258.882721][ T6699] Call Trace:
[ 258.886004][ T6699]
[ 258.888933][ T6699] dump_stack_lvl+0x188/0x250
[ 258.893706][ T6699] ? show_regs_print_info+0x20/0x20
[ 258.898912][ T6699] ? load_image+0x410/0x410
[ 258.903615][ T6699] sysfs_create_dir_ns+0x26a/0x290
[ 258.909045][ T6699] ? sysfs_warn_dup+0xa0/0xa0
[ 258.913936][ T6699] ? do_raw_spin_unlock+0x11d/0x230
[ 258.919161][ T6699] kobject_add_internal+0x5ba/0xcd0
[ 258.924392][ T6699] kobject_init_and_add+0x128/0x190
[ 258.929697][ T6699] ? lockdep_softirqs_off+0x430/0x430
[ 258.935101][ T6699] ? kobject_add+0x230/0x230
[ 258.939819][ T6699] ? __init_swait_queue_head+0xa4/0x140
[ 258.945402][ T6699] gfs2_sys_fs_add+0x24f/0x4b0
[ 258.950283][ T6699] ? gfs2_recover_set+0x240/0x240
[ 258.955330][ T6699] ? snprintf+0xe5/0x140
[ 258.959860][ T6699] ? __free_pages+0x95/0x1a0
[ 258.964952][ T6699] ? vscnprintf+0x80/0x80
[ 258.969480][ T6699] gfs2_fill_super+0x11ed/0x1ea0
[ 258.974682][ T6699] ? gfs2_reconfigure+0xd80/0xd80
[ 258.979838][ T6699] ? sb_set_blocksize+0xa5/0xe0
[ 258.984712][ T6699] get_tree_bdev+0x3e6/0x610
[ 258.989506][ T6699] ? gfs2_reconfigure+0xd80/0xd80
[ 258.994780][ T6699] gfs2_get_tree+0x4d/0x1e0
[ 258.999303][ T6699] vfs_get_tree+0x88/0x270
[ 259.003735][ T6699] do_new_mount+0x247/0xa40
[ 259.008429][ T6699] __se_sys_mount+0x2e3/0x3d0
[ 259.013122][ T6699] ? __x64_sys_mount+0xc0/0xc0
[ 259.017907][ T6699] ? lockdep_hardirqs_on+0x94/0x140
[ 259.023142][ T6699] ? __x64_sys_mount+0x1c/0xc0
[ 259.027928][ T6699] do_syscall_64+0x4c/0xa0
[ 259.032458][ T6699] ? clear_bhb_loop+0x30/0x80
[ 259.037243][ T6699] ? clear_bhb_loop+0x30/0x80
[ 259.041943][ T6699] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 259.048063][ T6699] RIP: 0033:0x7fd7912ad60a
[ 259.052495][ T6699] 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
[ 259.072496][ T6699] RSP: 002b:00007fd79090fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.081026][ T6699] RAX: ffffffffffffffda RBX: 00007fd79090fee0 RCX: 00007fd7912ad60a
[ 259.089029][ T6699] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fd79090fea0
[ 259.097189][ T6699] RBP: 0000200000000400 R08: 00007fd79090fee0 R09: 0000000000000000
[ 259.105179][ T6699] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 259.113422][ T6699] R13: 00007fd79090fea0 R14: 00000000000125ed R15: 0000200000000640
[ 259.121421][ T6699]
[ 259.124560][ T6699] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.137708][ T6699] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.193333][ T6705] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.200795][ T6705] CPU: 1 PID: 6705 Comm: syz.0.488 Not tainted syzkaller #0
[ 259.208202][ T6705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 259.218270][ T6705] Call Trace:
[ 259.221558][ T6705]
[ 259.224495][ T6705] dump_stack_lvl+0x188/0x250
[ 259.229184][ T6705] ? show_regs_print_info+0x20/0x20
[ 259.234392][ T6705] ? load_image+0x410/0x410
[ 259.238924][ T6705] sysfs_create_dir_ns+0x26a/0x290
[ 259.244144][ T6705] ? sysfs_warn_dup+0xa0/0xa0
[ 259.248838][ T6705] ? do_raw_spin_unlock+0x11d/0x230
[ 259.254251][ T6705] kobject_add_internal+0x5ba/0xcd0
[ 259.259472][ T6705] kobject_init_and_add+0x128/0x190
[ 259.264684][ T6705] ? lockdep_softirqs_off+0x430/0x430
[ 259.270165][ T6705] ? kobject_add+0x230/0x230
[ 259.274774][ T6705] ? __init_swait_queue_head+0xa4/0x140
[ 259.280343][ T6705] gfs2_sys_fs_add+0x24f/0x4b0
[ 259.285215][ T6705] ? gfs2_recover_set+0x240/0x240
[ 259.290258][ T6705] ? snprintf+0xe5/0x140
[ 259.294598][ T6705] ? __free_pages+0x95/0x1a0
[ 259.299217][ T6705] ? vscnprintf+0x80/0x80
[ 259.303578][ T6705] gfs2_fill_super+0x11ed/0x1ea0
[ 259.308552][ T6705] ? gfs2_reconfigure+0xd80/0xd80
[ 259.313620][ T6705] ? sb_set_blocksize+0xa5/0xe0
[ 259.318507][ T6705] get_tree_bdev+0x3e6/0x610
[ 259.323390][ T6705] ? gfs2_reconfigure+0xd80/0xd80
[ 259.328438][ T6705] gfs2_get_tree+0x4d/0x1e0
[ 259.332960][ T6705] vfs_get_tree+0x88/0x270
[ 259.337398][ T6705] do_new_mount+0x247/0xa40
[ 259.342202][ T6705] __se_sys_mount+0x2e3/0x3d0
[ 259.347037][ T6705] ? __x64_sys_mount+0xc0/0xc0
[ 259.351827][ T6705] ? lockdep_hardirqs_on+0x94/0x140
[ 259.357229][ T6705] ? __x64_sys_mount+0x1c/0xc0
[ 259.362016][ T6705] do_syscall_64+0x4c/0xa0
[ 259.366460][ T6705] ? clear_bhb_loop+0x30/0x80
[ 259.371154][ T6705] ? clear_bhb_loop+0x30/0x80
[ 259.375875][ T6705] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 259.381896][ T6705] RIP: 0033:0x7f4fcb6ad60a
[ 259.386366][ T6705] 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
[ 259.406081][ T6705] RSP: 002b:00007f4fcad0fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.414735][ T6705] RAX: ffffffffffffffda RBX: 00007f4fcad0fee0 RCX: 00007f4fcb6ad60a
[ 259.422815][ T6705] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4fcad0fea0
[ 259.430819][ T6705] RBP: 0000200000000400 R08: 00007f4fcad0fee0 R09: 0000000000000000
[ 259.438865][ T6705] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 259.447267][ T6705] R13: 00007f4fcad0fea0 R14: 00000000000125ed R15: 0000200000000640
[ 259.455368][ T6705]
[ 259.458538][ T6705] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.472111][ T6705] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.792586][ T6711] loop1: detected capacity change from 0 to 32768
[ 259.853925][ T6711] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.861780][ T6711] CPU: 1 PID: 6711 Comm: syz.1.490 Not tainted syzkaller #0
[ 259.869291][ T6711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 259.879364][ T6711] Call Trace:
[ 259.882689][ T6711]
[ 259.885638][ T6711] dump_stack_lvl+0x188/0x250
[ 259.890356][ T6711] ? show_regs_print_info+0x20/0x20
[ 259.895663][ T6711] ? load_image+0x410/0x410
[ 259.900372][ T6711] sysfs_create_dir_ns+0x26a/0x290
[ 259.905596][ T6711] ? sysfs_warn_dup+0xa0/0xa0
[ 259.910392][ T6711] ? do_raw_spin_unlock+0x11d/0x230
[ 259.915798][ T6711] kobject_add_internal+0x5ba/0xcd0
[ 259.921132][ T6711] kobject_init_and_add+0x128/0x190
[ 259.926372][ T6711] ? lockdep_softirqs_off+0x430/0x430
[ 259.932614][ T6711] ? kobject_add+0x230/0x230
[ 259.937355][ T6711] ? __init_swait_queue_head+0xa4/0x140
[ 259.943025][ T6711] gfs2_sys_fs_add+0x24f/0x4b0
[ 259.947814][ T6711] ? gfs2_recover_set+0x240/0x240
[ 259.952958][ T6711] ? snprintf+0xe5/0x140
[ 259.957374][ T6711] ? __free_pages+0x95/0x1a0
[ 259.962191][ T6711] ? vscnprintf+0x80/0x80
[ 259.966553][ T6711] gfs2_fill_super+0x11ed/0x1ea0
[ 259.971705][ T6711] ? gfs2_reconfigure+0xd80/0xd80
[ 259.976854][ T6711] ? sb_set_blocksize+0xa5/0xe0
[ 259.981734][ T6711] get_tree_bdev+0x3e6/0x610
[ 259.986348][ T6711] ? gfs2_reconfigure+0xd80/0xd80
[ 259.991390][ T6711] gfs2_get_tree+0x4d/0x1e0
[ 259.995909][ T6711] vfs_get_tree+0x88/0x270
[ 260.000334][ T6711] do_new_mount+0x247/0xa40
[ 260.004940][ T6711] __se_sys_mount+0x2e3/0x3d0
[ 260.009633][ T6711] ? __x64_sys_mount+0xc0/0xc0
[ 260.014399][ T6711] ? lockdep_hardirqs_on+0x94/0x140
[ 260.019695][ T6711] ? __x64_sys_mount+0x1c/0xc0
[ 260.024484][ T6711] do_syscall_64+0x4c/0xa0
[ 260.028913][ T6711] ? clear_bhb_loop+0x30/0x80
[ 260.033608][ T6711] ? clear_bhb_loop+0x30/0x80
[ 260.038409][ T6711] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 260.044339][ T6711] RIP: 0033:0x7f6a34f1560a
[ 260.048945][ T6711] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 260.068755][ T6711] RSP: 002b:00007f6a34577e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 260.077189][ T6711] RAX: ffffffffffffffda RBX: 00007f6a34577ee0 RCX: 00007f6a34f1560a
[ 260.085173][ T6711] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f6a34577ea0
[ 260.093160][ T6711] RBP: 0000200000000400 R08: 00007f6a34577ee0 R09: 0000000000000000
[ 260.101475][ T6711] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 260.109830][ T6711] R13: 00007f6a34577ea0 R14: 00000000000125ed R15: 0000200000000640
[ 260.117924][ T6711]
[ 260.122030][ T6711] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 260.135765][ T6711] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 260.410602][ T6719] loop5: detected capacity change from 0 to 32768
[ 260.429788][ T6714] loop3: detected capacity change from 0 to 32768
[ 260.430428][ T6718] loop0: detected capacity change from 0 to 32768
[ 260.460842][ T6719] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 260.468403][ T6719] CPU: 1 PID: 6719 Comm: syz.5.492 Not tainted syzkaller #0
[ 260.475701][ T6719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 260.485854][ T6719] Call Trace:
[ 260.489147][ T6719]
[ 260.492089][ T6719] dump_stack_lvl+0x188/0x250
[ 260.496891][ T6719] ? show_regs_print_info+0x20/0x20
[ 260.502480][ T6719] ? load_image+0x410/0x410
[ 260.507278][ T6719] sysfs_create_dir_ns+0x26a/0x290
[ 260.512408][ T6719] ? sysfs_warn_dup+0xa0/0xa0
[ 260.517103][ T6719] ? do_raw_spin_unlock+0x11d/0x230
[ 260.522318][ T6719] kobject_add_internal+0x5ba/0xcd0
[ 260.527544][ T6719] kobject_init_and_add+0x128/0x190
[ 260.532895][ T6719] ? lockdep_softirqs_off+0x430/0x430
[ 260.538305][ T6719] ? kobject_add+0x230/0x230
[ 260.542940][ T6719] ? __init_swait_queue_head+0xa4/0x140
[ 260.548606][ T6719] gfs2_sys_fs_add+0x24f/0x4b0
[ 260.553447][ T6719] ? gfs2_recover_set+0x240/0x240
[ 260.558592][ T6719] ? snprintf+0xe5/0x140
[ 260.563134][ T6719] ? __free_pages+0x95/0x1a0
[ 260.567832][ T6719] ? vscnprintf+0x80/0x80
[ 260.572187][ T6719] gfs2_fill_super+0x11ed/0x1ea0
[ 260.577343][ T6719] ? gfs2_reconfigure+0xd80/0xd80
[ 260.582387][ T6719] ? sb_set_blocksize+0xa5/0xe0
[ 260.587343][ T6719] get_tree_bdev+0x3e6/0x610
[ 260.592039][ T6719] ? gfs2_reconfigure+0xd80/0xd80
[ 260.597081][ T6719] gfs2_get_tree+0x4d/0x1e0
[ 260.601602][ T6719] vfs_get_tree+0x88/0x270
[ 260.606038][ T6719] do_new_mount+0x247/0xa40
[ 260.610560][ T6719] __se_sys_mount+0x2e3/0x3d0
[ 260.615451][ T6719] ? __x64_sys_mount+0xc0/0xc0
[ 260.620361][ T6719] ? lockdep_hardirqs_on+0x94/0x140
[ 260.625932][ T6719] ? __x64_sys_mount+0x1c/0xc0
[ 260.630975][ T6719] do_syscall_64+0x4c/0xa0
[ 260.635496][ T6719] ? clear_bhb_loop+0x30/0x80
[ 260.640217][ T6719] ? clear_bhb_loop+0x30/0x80
[ 260.644915][ T6719] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 260.650851][ T6719] RIP: 0033:0x7f578030a60a
[ 260.655293][ T6719] 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
[ 260.675718][ T6719] RSP: 002b:00007f577f96ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 260.684414][ T6719] RAX: ffffffffffffffda RBX: 00007f577f96cee0 RCX: 00007f578030a60a
[ 260.692502][ T6719] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f577f96cea0
[ 260.701807][ T6719] RBP: 0000200000000400 R08: 00007f577f96cee0 R09: 0000000000000000
[ 260.710071][ T6719] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 260.718150][ T6719] R13: 00007f577f96cea0 R14: 00000000000125ed R15: 0000200000000640
[ 260.726176][ T6719]
[ 260.730331][ T6719] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 260.744382][ T6719] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 260.841740][ T6718] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 260.849269][ T6718] CPU: 0 PID: 6718 Comm: syz.0.495 Not tainted syzkaller #0
[ 260.856610][ T6718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 260.866960][ T6718] Call Trace:
[ 260.870342][ T6718]
[ 260.873582][ T6718] dump_stack_lvl+0x188/0x250
[ 260.878380][ T6718] ? show_regs_print_info+0x20/0x20
[ 260.883594][ T6718] ? load_image+0x410/0x410
[ 260.888124][ T6718] sysfs_create_dir_ns+0x26a/0x290
[ 260.893339][ T6718] ? sysfs_warn_dup+0xa0/0xa0
[ 260.898129][ T6718] ? do_raw_spin_unlock+0x11d/0x230
[ 260.903436][ T6718] kobject_add_internal+0x5ba/0xcd0
[ 260.908852][ T6718] kobject_init_and_add+0x128/0x190
[ 260.914164][ T6718] ? lockdep_softirqs_off+0x430/0x430
[ 260.919560][ T6718] ? kobject_add+0x230/0x230
[ 260.924177][ T6718] ? __init_swait_queue_head+0xa4/0x140
[ 260.929745][ T6718] gfs2_sys_fs_add+0x24f/0x4b0
[ 260.934535][ T6718] ? gfs2_recover_set+0x240/0x240
[ 260.939594][ T6718] ? snprintf+0xe5/0x140
[ 260.943960][ T6718] ? __free_pages+0x95/0x1a0
[ 260.948555][ T6718] ? vscnprintf+0x80/0x80
[ 260.953086][ T6718] gfs2_fill_super+0x11ed/0x1ea0
[ 260.958294][ T6718] ? gfs2_reconfigure+0xd80/0xd80
[ 260.963466][ T6718] ? sb_set_blocksize+0xa5/0xe0
[ 260.968419][ T6718] get_tree_bdev+0x3e6/0x610
[ 260.973011][ T6718] ? gfs2_reconfigure+0xd80/0xd80
[ 260.978035][ T6718] gfs2_get_tree+0x4d/0x1e0
[ 260.982685][ T6718] vfs_get_tree+0x88/0x270
[ 260.987101][ T6718] do_new_mount+0x247/0xa40
[ 260.991610][ T6718] __se_sys_mount+0x2e3/0x3d0
[ 260.996280][ T6718] ? __x64_sys_mount+0xc0/0xc0
[ 261.001145][ T6718] ? lockdep_hardirqs_on+0x94/0x140
[ 261.006348][ T6718] ? __x64_sys_mount+0x1c/0xc0
[ 261.011190][ T6718] do_syscall_64+0x4c/0xa0
[ 261.015739][ T6718] ? clear_bhb_loop+0x30/0x80
[ 261.020410][ T6718] ? clear_bhb_loop+0x30/0x80
[ 261.025091][ T6718] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 261.031095][ T6718] RIP: 0033:0x7f4fcb6ad60a
[ 261.035678][ T6718] 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
[ 261.055452][ T6718] RSP: 002b:00007f4fcad0fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 261.064518][ T6718] RAX: ffffffffffffffda RBX: 00007f4fcad0fee0 RCX: 00007f4fcb6ad60a
[ 261.072482][ T6718] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4fcad0fea0
[ 261.080446][ T6718] RBP: 0000200000000400 R08: 00007f4fcad0fee0 R09: 0000000000000000
[ 261.088427][ T6718] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 261.096483][ T6718] R13: 00007f4fcad0fea0 R14: 00000000000125ed R15: 0000200000000640
[ 261.104455][ T6718]
[ 261.108551][ T6718] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 261.122357][ T6718] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 261.130602][ T6714] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.138158][ T6714] CPU: 0 PID: 6714 Comm: syz.3.493 Not tainted syzkaller #0
[ 261.145565][ T6714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 261.155634][ T6714] Call Trace:
[ 261.159013][ T6714]
[ 261.161960][ T6714] dump_stack_lvl+0x188/0x250
[ 261.166673][ T6714] ? show_regs_print_info+0x20/0x20
[ 261.171985][ T6714] ? load_image+0x410/0x410
[ 261.176514][ T6714] sysfs_create_dir_ns+0x26a/0x290
[ 261.181656][ T6714] ? sysfs_warn_dup+0xa0/0xa0
[ 261.186381][ T6714] ? do_raw_spin_unlock+0x11d/0x230
[ 261.191601][ T6714] kobject_add_internal+0x5ba/0xcd0
[ 261.196820][ T6714] kobject_init_and_add+0x128/0x190
[ 261.202024][ T6714] ? lockdep_softirqs_off+0x430/0x430
[ 261.207617][ T6714] ? kobject_add+0x230/0x230
[ 261.212341][ T6714] ? __init_swait_queue_head+0xa4/0x140
[ 261.217892][ T6714] gfs2_sys_fs_add+0x24f/0x4b0
[ 261.222678][ T6714] ? gfs2_recover_set+0x240/0x240
[ 261.227714][ T6714] ? snprintf+0xe5/0x140
[ 261.232057][ T6714] ? __free_pages+0x95/0x1a0
[ 261.236667][ T6714] ? vscnprintf+0x80/0x80
[ 261.241100][ T6714] gfs2_fill_super+0x11ed/0x1ea0
[ 261.246069][ T6714] ? gfs2_reconfigure+0xd80/0xd80
[ 261.251132][ T6714] ? sb_set_blocksize+0xa5/0xe0
[ 261.256526][ T6714] get_tree_bdev+0x3e6/0x610
[ 261.261146][ T6714] ? gfs2_reconfigure+0xd80/0xd80
[ 261.266213][ T6714] gfs2_get_tree+0x4d/0x1e0
[ 261.270815][ T6714] vfs_get_tree+0x88/0x270
[ 261.275253][ T6714] do_new_mount+0x247/0xa40
[ 261.279873][ T6714] __se_sys_mount+0x2e3/0x3d0
[ 261.284571][ T6714] ? __x64_sys_mount+0xc0/0xc0
[ 261.289363][ T6714] ? lockdep_hardirqs_on+0x94/0x140
[ 261.294658][ T6714] ? __x64_sys_mount+0x1c/0xc0
[ 261.299441][ T6714] do_syscall_64+0x4c/0xa0
[ 261.303954][ T6714] ? clear_bhb_loop+0x30/0x80
[ 261.308641][ T6714] ? clear_bhb_loop+0x30/0x80
[ 261.313329][ T6714] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 261.319316][ T6714] RIP: 0033:0x7f21c259360a
[ 261.323746][ T6714] 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
[ 261.343541][ T6714] RSP: 002b:00007f21c1bf5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 261.352170][ T6714] RAX: ffffffffffffffda RBX: 00007f21c1bf5ee0 RCX: 00007f21c259360a
[ 261.360158][ T6714] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f21c1bf5ea0
[ 261.368267][ T6714] RBP: 0000200000000400 R08: 00007f21c1bf5ee0 R09: 0000000000000000
[ 261.376436][ T6714] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 261.384884][ T6714] R13: 00007f21c1bf5ea0 R14: 00000000000125ed R15: 0000200000000640
[ 261.393417][ T6714]
[ 261.397609][ T6714] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 261.411066][ T6714] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 261.974525][ T6732] loop3: detected capacity change from 0 to 32768
[ 261.988132][ T6732] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.995681][ T6732] CPU: 0 PID: 6732 Comm: syz.3.500 Not tainted syzkaller #0
[ 262.003069][ T6732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 262.013138][ T6732] Call Trace:
[ 262.016428][ T6732]
[ 262.019452][ T6732] dump_stack_lvl+0x188/0x250
[ 262.024228][ T6732] ? show_regs_print_info+0x20/0x20
[ 262.029434][ T6732] ? load_image+0x410/0x410
[ 262.033974][ T6732] sysfs_create_dir_ns+0x26a/0x290
[ 262.039191][ T6732] ? sysfs_warn_dup+0xa0/0xa0
[ 262.044054][ T6732] ? do_raw_spin_unlock+0x11d/0x230
[ 262.049359][ T6732] kobject_add_internal+0x5ba/0xcd0
[ 262.051720][ T27] INFO: task syz.2.32:5265 blocked for more than 143 seconds.
[ 262.054565][ T6732] kobject_init_and_add+0x128/0x190
[ 262.054588][ T6732] ? lockdep_softirqs_off+0x430/0x430
[ 262.054611][ T6732] ? kobject_add+0x230/0x230
[ 262.063459][ T6733] loop1: detected capacity change from 0 to 32768
[ 262.067809][ T6732] ? __init_swait_queue_head+0xa4/0x140
[ 262.089685][ T6732] gfs2_sys_fs_add+0x24f/0x4b0
[ 262.094475][ T6732] ? gfs2_recover_set+0x240/0x240
[ 262.099607][ T6732] ? snprintf+0xe5/0x140
[ 262.103876][ T6732] ? __free_pages+0x95/0x1a0
[ 262.108489][ T6732] ? vscnprintf+0x80/0x80
[ 262.112951][ T6732] gfs2_fill_super+0x11ed/0x1ea0
[ 262.114930][ T27] Not tainted syzkaller #0
[ 262.117910][ T6732] ? gfs2_reconfigure+0xd80/0xd80
[ 262.127972][ T6732] ? sb_set_blocksize+0xa5/0xe0
[ 262.132852][ T6732] get_tree_bdev+0x3e6/0x610
[ 262.137493][ T6732] ? gfs2_reconfigure+0xd80/0xd80
[ 262.142548][ T6732] gfs2_get_tree+0x4d/0x1e0
[ 262.147082][ T6732] vfs_get_tree+0x88/0x270
[ 262.151606][ T6732] do_new_mount+0x247/0xa40
[ 262.156137][ T6732] __se_sys_mount+0x2e3/0x3d0
[ 262.160913][ T6732] ? __x64_sys_mount+0xc0/0xc0
[ 262.165691][ T6732] ? lockdep_hardirqs_on+0x94/0x140
[ 262.170992][ T6732] ? __x64_sys_mount+0x1c/0xc0
[ 262.175823][ T6732] do_syscall_64+0x4c/0xa0
[ 262.180341][ T6732] ? clear_bhb_loop+0x30/0x80
[ 262.185037][ T6732] ? clear_bhb_loop+0x30/0x80
[ 262.189779][ T6732] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 262.195701][ T6732] RIP: 0033:0x7f21c259360a
[ 262.200132][ T6732] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 262.201155][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 262.220092][ T6732] RSP: 002b:00007f21c1bf5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 262.220116][ T6732] RAX: ffffffffffffffda RBX: 00007f21c1bf5ee0 RCX: 00007f21c259360a
[ 262.220127][ T6732] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f21c1bf5ea0
[ 262.220137][ T6732] RBP: 0000200000000400 R08: 00007f21c1bf5ee0 R09: 0000000000000000
[ 262.220147][ T6732] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 262.220157][ T6732] R13: 00007f21c1bf5ea0 R14: 00000000000125ed R15: 0000200000000640
[ 262.220182][ T6732]
[ 262.221034][ T6732] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 262.295177][ T6732] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 262.342172][ T27] task:syz.2.32 state:D stack:24848 pid: 5265 ppid: 4847 flags:0x00004004
[ 262.352120][ T27] Call Trace:
[ 262.355424][ T27]
[ 262.358471][ T27] __schedule+0x11c3/0x4350
[ 262.364163][ T27] ? rcu_read_lock_sched_held+0x86/0x110
[ 262.369983][ T27] ? release_firmware_map_entry+0x190/0x190
[ 262.376248][ T27] ? rcu_is_watching+0x11/0xa0
[ 262.381141][ T27] ? __update_load_avg_cfs_rq+0x685/0xa80
[ 262.387251][ T27] schedule+0x11b/0x1e0
[ 262.391487][ T27] schedule_timeout+0xbd/0x2d0
[ 262.396396][ T27] ? console_conditional_schedule+0x40/0x40
[ 262.402451][ T27] ? lockdep_hardirqs_on_prepare+0x448/0x7c0
[ 262.408562][ T27] ? __lock_acquire+0x7d40/0x7d40
[ 262.414939][ T27] ? lock_chain_count+0x20/0x20
[ 262.419912][ T27] ? lock_chain_count+0x20/0x20
[ 262.446333][ T27] ? _raw_spin_unlock_irq+0x1f/0x40
[ 262.476893][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 262.507437][ T27] do_wait_for_common+0x295/0x460
[ 262.531292][ T27] ? console_conditional_schedule+0x40/0x40
[ 262.560365][ T27] ? wait_for_completion_killable_timeout+0x60/0x60
[ 262.584978][ T27] ? _raw_spin_lock_irq+0xb7/0xf0
[ 262.601429][ T27] ? try_to_wake_up+0x69a/0x1020
[ 262.631138][ T27] wait_for_completion+0x48/0x60
[ 262.655665][ T27] kthread_stop+0x16e/0x540
[ 262.660425][ T27] gfs2_make_fs_ro+0x157/0x620
[ 262.696845][ T27] ? gfs2_dinode_out+0xb00/0xb00
[ 262.717160][ T27] ? do_raw_spin_lock+0x128/0x2f0
[ 262.739499][ T27] ? __rwlock_init+0x140/0x140
[ 262.767593][ T27] ? do_raw_spin_unlock+0x11d/0x230
[ 262.787652][ T27] ? gfs2_glock_is_locked_by_me+0x16d/0x190
[ 262.814267][ T27] gfs2_withdraw+0x660/0x14e0
[ 262.819005][ T27] ? gfs2_freeze_unlock+0x50/0x50
[ 262.838056][ T27] ? gfs2_lm+0x240/0x240
[ 262.851327][ T27] ? gfs2_meta_buffer+0x310/0x310
[ 262.870947][ T27] ? from_kuid_munged+0x6e0/0x6e0
[ 262.891247][ T27] gfs2_metatype_check_ii+0x74/0x90
[ 262.910216][ T27] gfs2_quota_init+0xc85/0xe80
[ 262.925937][ T27] ? qd_get+0x5d0/0x5d0
[ 262.930193][ T27] gfs2_make_fs_rw+0x41c/0x590
[ 262.953746][ T27] ? _raw_spin_unlock+0x24/0x40
[ 262.958658][ T27] ? gfs2_glock_nq+0xcaa/0x1510
[ 262.981430][ T27] ? gfs2_jdesc_check+0x290/0x290
[ 262.986551][ T27] gfs2_fill_super+0x17d1/0x1ea0
[ 262.999780][ T27] ? gfs2_reconfigure+0xd80/0xd80
[ 263.005133][ T27] ? gfs2_glock_nq_num+0x7e/0x1b0
[ 263.010273][ T27] ? gfs2_freeze_lock+0x52/0xc0
[ 263.015214][ T27] ? sb_set_blocksize+0xa5/0xe0
[ 263.020106][ T27] get_tree_bdev+0x3e6/0x610
[ 263.024895][ T27] ? gfs2_reconfigure+0xd80/0xd80
[ 263.030040][ T27] gfs2_get_tree+0x4d/0x1e0
[ 263.034723][ T27] vfs_get_tree+0x88/0x270
[ 263.039257][ T27] do_new_mount+0x247/0xa40
[ 263.044534][ T27] __se_sys_mount+0x2e3/0x3d0
[ 263.049243][ T27] ? __x64_sys_mount+0xc0/0xc0
[ 263.056808][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 263.070692][ T27] ? __x64_sys_mount+0x1c/0xc0
[ 263.084848][ T27] do_syscall_64+0x4c/0xa0
[ 263.089617][ T27] ? clear_bhb_loop+0x30/0x80
[ 263.096822][ T27] ? clear_bhb_loop+0x30/0x80
[ 263.106486][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 263.115364][ T27] RIP: 0033:0x7fd25896c60a
[ 263.120064][ T27] RSP: 002b:00007fd257fcee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
2026/10/04 14:29:54 executed programs: 496
[ 263.133850][ T27] RAX: ffffffffffffffda RBX: 00007fd257fceee0 RCX: 00007fd25896c60a
[ 263.152040][ T27] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fd257fceea0
[ 263.160199][ T27] RBP: 0000200000000400 R08: 00007fd257fceee0 R09: 0000000000000000
[ 263.189089][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 263.198913][ T27] R13: 00007fd257fceea0 R14: 00000000000125ed R15: 0000200000000640
[ 263.212902][ T27]
[ 263.216236][ T27] INFO: task gfs2_quotad:5283 blocked for more than 144 seconds.
[ 263.230749][ T6733] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 263.238613][ T6733] CPU: 1 PID: 6733 Comm: syz.1.501 Not tainted syzkaller #0
[ 263.245997][ T6733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 263.256062][ T6733] Call Trace:
[ 263.259345][ T6733]
[ 263.262285][ T6733] dump_stack_lvl+0x188/0x250
[ 263.266973][ T6733] ? show_regs_print_info+0x20/0x20
[ 263.272178][ T6733] ? load_image+0x410/0x410
[ 263.272282][ T6737] loop4: detected capacity change from 0 to 32768
[ 263.276830][ T6733] sysfs_create_dir_ns+0x26a/0x290
[ 263.284752][ T27] Not tainted syzkaller #0
[ 263.288413][ T6733] ? sysfs_warn_dup+0xa0/0xa0
[ 263.293398][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 263.298006][ T6733] ? do_raw_spin_unlock+0x11d/0x230
[ 263.306819][ T27] task:gfs2_quotad state:D
[ 263.311960][ T6733] kobject_add_internal+0x5ba/0xcd0
[ 263.311989][ T6733] kobject_init_and_add+0x128/0x190
[ 263.312003][ T6733] ? lockdep_softirqs_off+0x430/0x430
[ 263.316804][ T27] stack:27216 pid: 5283 ppid: 2 flags:0x00004000
[ 263.321952][ T6733] ? kobject_add+0x230/0x230
[ 263.321975][ T6733] ? __init_swait_queue_head+0xa4/0x140
[ 263.327264][ T27] Call Trace:
[ 263.332631][ T6733] gfs2_sys_fs_add+0x24f/0x4b0
[ 263.332655][ T6733] ? gfs2_recover_set+0x240/0x240
[ 263.332671][ T6733] ? snprintf+0xe5/0x140
[ 263.332688][ T6733] ? __free_pages+0x95/0x1a0
[ 263.339427][ T27]
[ 263.343999][ T6733] ? vscnprintf+0x80/0x80
[ 263.344028][ T6733] gfs2_fill_super+0x11ed/0x1ea0
[ 263.344053][ T6733] ? gfs2_reconfigure+0xd80/0xd80
[ 263.344083][ T6733] ? sb_set_blocksize+0xa5/0xe0
[ 263.349632][ T27] __schedule+0x11c3/0x4350
[ 263.352852][ T6733] get_tree_bdev+0x3e6/0x610
[ 263.352875][ T6733] ? gfs2_reconfigure+0xd80/0xd80
[ 263.352893][ T6733] gfs2_get_tree+0x4d/0x1e0
[ 263.352910][ T6733] vfs_get_tree+0x88/0x270
[ 263.352927][ T6733] do_new_mount+0x247/0xa40
[ 263.352949][ T6733] __se_sys_mount+0x2e3/0x3d0
[ 263.352970][ T6733] ? __x64_sys_mount+0xc0/0xc0
[ 263.352990][ T6733] ? lockdep_hardirqs_on+0x94/0x140
[ 263.353008][ T6733] ? __x64_sys_mount+0x1c/0xc0
[ 263.369553][ T27] ? lock_chain_count+0x20/0x20
[ 263.371894][ T6733] do_syscall_64+0x4c/0xa0
[ 263.371914][ T6733] ? clear_bhb_loop+0x30/0x80
[ 263.371931][ T6733] ? clear_bhb_loop+0x30/0x80
[ 263.371948][ T6733] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 263.371965][ T6733] RIP: 0033:0x7f6a34f1560a
[ 263.371982][ T6733] 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
[ 263.371995][ T6733] RSP: 002b:00007f6a34577e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 263.372013][ T6733] RAX: ffffffffffffffda RBX: 00007f6a34577ee0 RCX: 00007f6a34f1560a
[ 263.372026][ T6733] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f6a34577ea0
[ 263.372037][ T6733] RBP: 0000200000000400 R08: 00007f6a34577ee0 R09: 0000000000000000
[ 263.372049][ T6733] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 263.372060][ T6733] R13: 00007f6a34577ea0 R14: 00000000000125ed R15: 0000200000000640
[ 263.372086][ T6733]
[ 263.372137][ T6733] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 263.372151][ T6733] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 263.381730][ T6728] loop0: detected capacity change from 0 to 32768
[ 263.425324][ T27] ? release_firmware_map_entry+0x190/0x190
[ 263.580644][ T27] ? _raw_spin_unlock_irqrestore+0x82/0x120
[ 263.587289][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 263.592800][ T27] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 263.598982][ T27] schedule+0x11b/0x1e0
[ 263.603426][ T27] bit_wait+0xd/0xc0
[ 263.607352][ T27] out_of_line_wait_on_bit+0x173/0x230
[ 263.613080][ T27] ? out_of_line_wait_on_bit_lock+0x190/0x190
[ 263.619355][ T27] ? __wait_on_bit+0x170/0x170
[ 263.624501][ T27] ? bit_waitqueue+0x30/0x30
[ 263.629530][ T27] ? do_raw_spin_unlock+0x11d/0x230
[ 263.637246][ T27] __gfs2_glock_dq+0x6b5/0xa10
[ 263.643733][ T27] gfs2_glock_dq_uninit+0x4f/0x110
[ 263.649773][ T27] gfs2_statfs_sync+0x734/0x7d0
[ 263.654917][ T27] ? update_statfs+0x320/0x320
[ 263.659964][ T27] ? gfs2_statfs_sync+0x15d/0x7d0
[ 263.665338][ T27] gfs2_quotad+0x37e/0x890
[ 263.670137][ T27] ? gfs2_wake_up_statfs+0xc0/0xc0
[ 263.675417][ T27] ? _raw_spin_unlock_irqrestore+0x82/0x120
[ 263.682234][ T27] ? init_wait_entry+0xd0/0xd0
[ 263.687027][ T27] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 263.694174][ T27] ? __kthread_parkme+0x14e/0x1b0
[ 263.699330][ T27] kthread+0x42e/0x520
[ 263.703737][ T27] ? gfs2_wake_up_statfs+0xc0/0xc0
[ 263.708978][ T27] ? kthread_blkcg+0xd0/0xd0
[ 263.713726][ T27] ret_from_fork+0x1f/0x30
[ 263.718267][ T27]
[ 263.721321][ T27]
[ 263.721321][ T27] Showing all locks held in the system:
[ 263.729463][ T27] 1 lock held by ksoftirqd/0/14:
[ 263.735163][ T6726] loop5: detected capacity change from 0 to 32768
[ 263.756015][ T6737] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 263.761615][ T6735] loop3: detected capacity change from 0 to 32768
[ 263.763649][ T6737] CPU: 0 PID: 6737 Comm: syz.4.503 Not tainted syzkaller #0
[ 263.777440][ T6737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 263.787680][ T6737] Call Trace:
[ 263.790970][ T6737]
[ 263.793911][ T6737] dump_stack_lvl+0x188/0x250
[ 263.798649][ T6737] ? show_regs_print_info+0x20/0x20
[ 263.803868][ T6737] ? load_image+0x410/0x410
[ 263.808491][ T6737] sysfs_create_dir_ns+0x26a/0x290
[ 263.813715][ T6737] ? sysfs_warn_dup+0xa0/0xa0
[ 263.818431][ T6737] ? do_raw_spin_unlock+0x11d/0x230
[ 263.823651][ T6737] kobject_add_internal+0x5ba/0xcd0
[ 263.828871][ T6737] kobject_init_and_add+0x128/0x190
[ 263.834187][ T6737] ? lockdep_softirqs_off+0x430/0x430
[ 263.839587][ T6737] ? kobject_add+0x230/0x230
[ 263.844207][ T6737] ? __init_swait_queue_head+0xa4/0x140
[ 263.849773][ T6737] gfs2_sys_fs_add+0x24f/0x4b0
[ 263.854556][ T6737] ? gfs2_recover_set+0x240/0x240
[ 263.859598][ T6737] ? snprintf+0xe5/0x140
[ 263.864096][ T6737] ? __free_pages+0x95/0x1a0
[ 263.868877][ T6737] ? vscnprintf+0x80/0x80
[ 263.873367][ T6737] gfs2_fill_super+0x11ed/0x1ea0
[ 263.878388][ T6737] ? gfs2_reconfigure+0xd80/0xd80
[ 263.883547][ T6737] ? sb_set_blocksize+0xa5/0xe0
[ 263.888593][ T6737] get_tree_bdev+0x3e6/0x610
[ 263.893463][ T6737] ? gfs2_reconfigure+0xd80/0xd80
[ 263.898587][ T6737] gfs2_get_tree+0x4d/0x1e0
[ 263.903301][ T6737] vfs_get_tree+0x88/0x270
[ 263.907741][ T6737] do_new_mount+0x247/0xa40
[ 263.912563][ T6737] __se_sys_mount+0x2e3/0x3d0
[ 263.917549][ T6737] ? __x64_sys_mount+0xc0/0xc0
[ 263.922336][ T6737] ? lockdep_hardirqs_on+0x94/0x140
[ 263.927581][ T6737] ? __x64_sys_mount+0x1c/0xc0
[ 263.928913][ T27] #0:
[ 263.932454][ T6737] do_syscall_64+0x4c/0xa0
[ 263.932477][ T6737] ? clear_bhb_loop+0x30/0x80
[ 263.932494][ T6737] ? clear_bhb_loop+0x30/0x80
[ 263.932512][ T6737] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 263.938012][ T27] ffff8880b903a358
[ 263.939672][ T6737] RIP: 0033:0x7fd7912ad60a
[ 263.939692][ T6737] 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
[ 263.944854][ T27] (
[ 263.949146][ T6737] RSP: 002b:00007fd79090fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 263.949169][ T6737] RAX: ffffffffffffffda RBX: 00007fd79090fee0 RCX: 00007fd7912ad60a
[ 263.949180][ T6737] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fd79090fea0
[ 263.949192][ T6737] RBP: 0000200000000400 R08: 00007fd79090fee0 R09: 0000000000000000
[ 263.949203][ T6737] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 263.949214][ T6737] R13: 00007fd79090fea0 R14: 00000000000125ed R15: 0000200000000640
[ 263.949238][ T6737]
[ 263.955992][ T27] &rq->__lock
[ 263.959818][ T6737] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 263.971129][ T27] ){-.-.}-{2:2}
[ 263.983480][ T6737] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 264.066757][ T27] , at: raw_spin_rq_lock_nested+0x25/0x130
[ 264.073705][ T27] 1 lock held by khungtaskd/27:
[ 264.078574][ T27] #0: ffffffff8c31efa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 264.088675][ T27] 1 lock held by udevd/3559:
[ 264.093420][ T27] #0: ffff8880208df518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x162/0xa50
[ 264.104633][ T27] 2 locks held by getty/3947:
[ 264.109608][ T27] #0: ffff88802ccb7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 264.119701][ T27] #1: ffffc90002cf62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x594/0x1a50
[ 264.130007][ T27] 2 locks held by kworker/0:8/4286:
[ 264.136210][ T27] #0: ffff888016c72138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x75c/0xff0
[ 264.146612][ T27] #1: ffffc90003c4fd00 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x79e/0xff0
[ 264.158518][ T27] 3 locks held by kworker/0:11/4291:
[ 264.164184][ T27] #0: ffff888016c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x75c/0xff0
[ 264.174981][ T27] #1: ffffc90003c9fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x79e/0xff0
[ 264.189008][ T27] #2: ffffffff8c323a28 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d1/0x750
[ 264.201300][ T27] 3 locks held by kworker/1:9/4293:
[ 264.207494][ T27] #0: ffff888016c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x75c/0xff0
[ 264.218868][ T27] #1: ffffc90003cbfd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x79e/0xff0
[ 264.231955][ T27] #2: ffffffff8c323a28 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a5/0x750
[ 264.243249][ T27] 1 lock held by udevd/4733:
[ 264.247882][ T27] #0: ffff8880208df518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x162/0xa50
[ 264.258060][ T27] 1 lock held by udevd/4738:
[ 264.263435][ T27] #0: ffff8880208e5118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x162/0xa50
[ 264.273692][ T27] 1 lock held by syz.2.32/5265:
[ 264.278845][ T27] #0: ffff888022a520e0 (&type->s_umount_key#53/1){+.+.}-{3:3}, at: alloc_super+0x200/0x970
[ 264.289264][ T27] 2 locks held by syz.5.497/6726:
[ 264.295595][ T27] #0: ffff888020a18918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf1/0x780
[ 264.306080][ T27] #1: ffff888020a7b468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 264.315275][ T27] 2 locks held by syz.0.499/6728:
[ 264.320407][ T27] #0: ffff8880208df518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf1/0x780
[ 264.330263][ T27] #1: ffff8880209c9468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 264.339438][ T27] 2 locks held by syz.1.501/6733:
[ 264.344741][ T27] #0: ffff8880208e5118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf1/0x780
[ 264.354412][ T27] #1: ffff8880209cc468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 264.363668][ T27] 2 locks held by syz.3.502/6735:
[ 264.368794][ T27] #0: ffff888020a11118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf1/0x780
[ 264.378309][ T27] #1: ffff888020935468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 264.387663][ T27] 2 locks held by syz.4.503/6737:
[ 264.392783][ T27] #0: ffff888020a12d18 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf1/0x780
[ 264.403133][ T27] #1: ffff888020a78468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 264.412511][ T27]
[ 264.414868][ T27] =============================================
[ 264.414868][ T27]
[ 264.424499][ T27] NMI backtrace for cpu 0
[ 264.428846][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[ 264.436050][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 264.437580][ T6728] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 264.446105][ T27] Call Trace:
[ 264.446116][ T27]
[ 264.446124][ T27] dump_stack_lvl+0x188/0x250
[ 264.446149][ T27] ? show_regs_print_info+0x20/0x20
[ 264.446165][ T27] ? load_image+0x410/0x410
[ 264.446183][ T27] ? nmi_cpu_backtrace+0x1b2/0x3d0
[ 264.479791][ T27] nmi_cpu_backtrace+0x3a2/0x3d0
[ 264.484918][ T27] ? nmi_trigger_cpumask_backtrace+0x280/0x280
[ 264.491265][ T27] ? _printk+0xda/0x130
[ 264.495492][ T27] ? load_image+0x410/0x410
[ 264.500016][ T27] ? load_image+0x410/0x410
[ 264.504526][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 264.510684][ T27] nmi_trigger_cpumask_backtrace+0x163/0x280
[ 264.516679][ T27] watchdog+0xe1b/0xe60
[ 264.520856][ T27] kthread+0x42e/0x520
[ 264.524923][ T27] ? hungtask_pm_notify+0x40/0x40
[ 264.529947][ T27] ? kthread_blkcg+0xd0/0xd0
[ 264.534544][ T27] ret_from_fork+0x1f/0x30
[ 264.539018][ T27]
[ 264.542061][ T6728] CPU: 1 PID: 6728 Comm: syz.0.499 Not tainted syzkaller #0
[ 264.542630][ T27] Sending NMI from CPU 0 to CPUs 1:
[ 264.549353][ T6728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 264.549367][ T6728] Call Trace:
[ 264.549373][ T6728]
[ 264.549380][ T6728] dump_stack_lvl+0x188/0x250
[ 264.549404][ T6728] ? show_regs_print_info+0x20/0x20
[ 264.554892][ C1] NMI backtrace for cpu 1
[ 264.554901][ C1] CPU: 1 PID: 6728 Comm: syz.0.499 Not tainted syzkaller #0
[ 264.554915][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 264.554923][ C1] RIP: 0010:io_serial_in+0x73/0xb0
[ 264.554942][ C1] Code: e8 32 fc 23 fd 44 89 f9 d3 e3 49 83 c6 40 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 23 41 69 fd 41 03 1e 89 da ec <0f> b6 c0 5b 41 5c 41 5e 41 5f c3 44 89 f9 80 e1 07 38 c1 7c aa 4c
[ 264.554955][ C1] RSP: 0018:ffffc900054a6fb8 EFLAGS: 00000002
[ 264.554968][ C1] RAX: 1ffffffff2cc8320 RBX: 00000000000003fd RCX: 0000000000000000
[ 264.554978][ C1] RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000020
[ 264.554987][ C1] RBP: 0000000000000020 R08: 0000000000000003 R09: 0000000000000004
[ 264.554995][ C1] R10: dffffc0000000000 R11: fffff52000a94dec R12: dffffc0000000000
[ 264.555006][ C1] R13: dffffc0000000000 R14: ffffffff96641820 R15: 0000000000000000
[ 264.555016][ C1] FS: 00007f4fcad106c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
[ 264.555029][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 264.555039][ C1] CR2: 00007fb9d842d000 CR3: 0000000078b3e000 CR4: 00000000003506e0
[ 264.555053][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 264.555061][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 264.555070][ C1] Call Trace:
[ 264.555075][ C1]
[ 264.555082][ C1] wait_for_xmitr+0xc7/0x240
[ 264.555096][ C1] ? serial8250_console_putchar+0xd/0x50
[ 264.555113][ C1] serial8250_console_putchar+0x1a/0x50
[ 264.555129][ C1] uart_console_write+0xaa/0x100
[ 264.555142][ C1] ? serial8250_console_write+0xf50/0xf50
[ 264.555159][ C1] serial8250_console_write+0xb90/0xf50
[ 264.555176][ C1] ? prb_read_valid+0x60/0x60
[ 264.555191][ C1] ? serial8250_set_defaults+0x610/0x610
[ 264.555208][ C1] ? read_lock_is_recursive+0x10/0x10
[ 264.555224][ C1] ? do_raw_spin_lock+0x128/0x2f0
[ 264.555239][ C1] ? __rwlock_init+0x140/0x140
[ 264.555253][ C1] ? do_raw_spin_unlock+0x11d/0x230
[ 264.555269][ C1] console_unlock+0xb47/0x10f0
[ 264.555286][ C1] ? console_trylock_spinning+0x370/0x370
[ 264.555303][ C1] ? read_lock_is_recursive+0x10/0x10
[ 264.555319][ C1] ? __rwlock_init+0x140/0x140
[ 264.555337][ C1] ? vprintk_emit+0x150/0x150
[ 264.555356][ C1] vprintk_emit+0xc0/0x150
[ 264.555370][ C1] _printk+0xda/0x130
[ 264.555384][ C1] ? show_regs_print_info+0x20/0x20
[ 264.555399][ C1] ? load_image+0x410/0x410
[ 264.555415][ C1] ? wq_watchdog_touch+0xeb/0x170
[ 264.555429][ C1] ? show_regs_print_info+0x20/0x20
[ 264.555443][ C1] ? show_regs_print_info+0x20/0x20
[ 264.555456][ C1] __show_trace_log_lvl+0x44e/0x550
[ 264.555474][ C1] ? sysfs_create_dir_ns+0x26a/0x290
[ 264.555491][ C1] dump_stack_lvl+0x188/0x250
[ 264.555505][ C1] ? show_regs_print_info+0x20/0x20
[ 264.555519][ C1] ? load_image+0x410/0x410
[ 264.555536][ C1] sysfs_create_dir_ns+0x26a/0x290
[ 264.555551][ C1] ? sysfs_warn_dup+0xa0/0xa0
[ 264.555565][ C1] ? do_raw_spin_unlock+0x11d/0x230
[ 264.555580][ C1] kobject_add_internal+0x5ba/0xcd0
[ 264.555598][ C1] kobject_init_and_add+0x128/0x190
[ 264.555610][ C1] ? lockdep_softirqs_off+0x430/0x430
[ 264.555628][ C1] ? kobject_add+0x230/0x230
[ 264.555643][ C1] ? __init_swait_queue_head+0xa4/0x140
[ 264.555661][ C1] gfs2_sys_fs_add+0x24f/0x4b0
[ 264.555676][ C1] ? gfs2_recover_set+0x240/0x240
[ 264.555689][ C1] ? snprintf+0xe5/0x140
[ 264.555703][ C1] ? __free_pages+0x95/0x1a0
[ 264.555720][ C1] ? vscnprintf+0x80/0x80
[ 264.555739][ C1] gfs2_fill_super+0x11ed/0x1ea0
[ 264.555759][ C1] ? gfs2_reconfigure+0xd80/0xd80
[ 264.555781][ C1] ? sb_set_blocksize+0xa5/0xe0
[ 264.555798][ C1] get_tree_bdev+0x3e6/0x610
[ 264.555821][ C1] ? gfs2_reconfigure+0xd80/0xd80
[ 264.555835][ C1] gfs2_get_tree+0x4d/0x1e0
[ 264.555850][ C1] vfs_get_tree+0x88/0x270
[ 264.555865][ C1] do_new_mount+0x247/0xa40
[ 264.555885][ C1] __se_sys_mount+0x2e3/0x3d0
[ 264.555902][ C1] ? __x64_sys_mount+0xc0/0xc0
[ 264.555918][ C1] ? lockdep_hardirqs_on+0x94/0x140
[ 264.555934][ C1] ? __x64_sys_mount+0x1c/0xc0
[ 264.555949][ C1] do_syscall_64+0x4c/0xa0
[ 264.555963][ C1] ? clear_bhb_loop+0x30/0x80
[ 264.555978][ C1] ? clear_bhb_loop+0x30/0x80
[ 264.555994][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 264.556010][ C1] RIP: 0033:0x7f4fcb6ad60a
[ 264.556023][ C1] 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
[ 264.556035][ C1] RSP: 002b:00007f4fcad0fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 264.556049][ C1] RAX: ffffffffffffffda RBX: 00007f4fcad0fee0 RCX: 00007f4fcb6ad60a
[ 264.556059][ C1] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4fcad0fea0
[ 264.556070][ C1] RBP: 0000200000000400 R08: 00007f4fcad0fee0 R09: 0000000000000000
[ 264.556079][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 264.556088][ C1] R13: 00007f4fcad0fea0 R14: 00000000000125ed R15: 0000200000000640
[ 264.556105][ C1]
[ 264.566294][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 264.569313][ T6728] ? load_image+0x410/0x410
[ 265.099551][ T6728] sysfs_create_dir_ns+0x26a/0x290
[ 265.104755][ T6728] ? sysfs_warn_dup+0xa0/0xa0
[ 265.109437][ T6728] ? do_raw_spin_unlock+0x11d/0x230
[ 265.114638][ T6728] kobject_add_internal+0x5ba/0xcd0
[ 265.119831][ T6728] kobject_init_and_add+0x128/0x190
[ 265.125015][ T6728] ? lockdep_softirqs_off+0x430/0x430
[ 265.130381][ T6728] ? kobject_add+0x230/0x230
[ 265.135052][ T6728] ? __init_swait_queue_head+0xa4/0x140
[ 265.140600][ T6728] gfs2_sys_fs_add+0x24f/0x4b0
[ 265.145404][ T6728] ? gfs2_recover_set+0x240/0x240
[ 265.151043][ T6728] ? snprintf+0xe5/0x140
[ 265.155285][ T6728] ? __free_pages+0x95/0x1a0
[ 265.159866][ T6728] ? vscnprintf+0x80/0x80
[ 265.164195][ T6728] gfs2_fill_super+0x11ed/0x1ea0
[ 265.169338][ T6728] ? gfs2_reconfigure+0xd80/0xd80
[ 265.174378][ T6728] ? sb_set_blocksize+0xa5/0xe0
[ 265.179219][ T6728] get_tree_bdev+0x3e6/0x610
[ 265.183853][ T6728] ? gfs2_reconfigure+0xd80/0xd80
[ 265.188876][ T6728] gfs2_get_tree+0x4d/0x1e0
[ 265.193636][ T6728] vfs_get_tree+0x88/0x270
[ 265.198049][ T6728] do_new_mount+0x247/0xa40
[ 265.202550][ T6728] __se_sys_mount+0x2e3/0x3d0
[ 265.207219][ T6728] ? __x64_sys_mount+0xc0/0xc0
[ 265.211975][ T6728] ? lockdep_hardirqs_on+0x94/0x140
[ 265.217424][ T6728] ? __x64_sys_mount+0x1c/0xc0
[ 265.222180][ T6728] do_syscall_64+0x4c/0xa0
[ 265.226592][ T6728] ? clear_bhb_loop+0x30/0x80
[ 265.231261][ T6728] ? clear_bhb_loop+0x30/0x80
[ 265.236020][ T6728] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 265.241904][ T6728] RIP: 0033:0x7f4fcb6ad60a
[ 265.246320][ T6728] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 265.266009][ T6728] RSP: 002b:00007f4fcad0fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 265.274616][ T6728] RAX: ffffffffffffffda RBX: 00007f4fcad0fee0 RCX: 00007f4fcb6ad60a
[ 265.282851][ T6728] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4fcad0fea0
[ 265.290910][ T6728] RBP: 0000200000000400 R08: 00007f4fcad0fee0 R09: 0000000000000000
[ 265.299079][ T6728] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 265.307215][ T6728] R13: 00007f4fcad0fea0 R14: 00000000000125ed R15: 0000200000000640
[ 265.315192][ T6728]
[ 265.318200][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[ 265.325404][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[ 265.331414][ T6728] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 265.335473][ T27] Call Trace:
[ 265.335483][ T27]
[ 265.335491][ T27] dump_stack_lvl+0x188/0x250
[ 265.335516][ T27] ? show_regs_print_info+0x20/0x20
[ 265.349057][ T6728] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 265.352168][ T27] ? load_image+0x410/0x410
[ 265.352200][ T27] panic+0x2f8/0x850
[ 265.352215][ T27] ? schedule_preempt_disabled+0x20/0x20
[ 265.385778][ T27] ? bpf_jit_dump+0xd0/0xd0
[ 265.390559][ T27] ? __irq_work_queue_local+0x12c/0x190
[ 265.396587][ T27] ? nmi_trigger_cpumask_backtrace+0x260/0x280
[ 265.402832][ T27] watchdog+0xe5a/0xe60
[ 265.407093][ T27] kthread+0x42e/0x520
[ 265.411166][ T27] ? hungtask_pm_notify+0x40/0x40
[ 265.416191][ T27] ? kthread_blkcg+0xd0/0xd0
[ 265.420891][ T27] ret_from_fork+0x1f/0x30
[ 265.425530][ T27]
[ 265.428776][ T27] Kernel Offset: disabled
[ 265.433339][ T27] Rebooting in 86400 seconds..