6341] CPU: 0 PID: 6341 Comm: syz.5.333 Not tainted syzkaller #0
[ 222.118114][ T6341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 222.128419][ T6341] Call Trace:
[ 222.131882][ T6341]
[ 222.135167][ T6341] dump_stack_lvl+0x188/0x250
[ 222.139884][ T6341] ? show_regs_print_info+0x20/0x20
[ 222.145210][ T6341] ? load_image+0x400/0x400
[ 222.149831][ T6341] sysfs_create_dir_ns+0x26a/0x290
[ 222.155396][ T6341] ? sysfs_warn_dup+0xa0/0xa0
[ 222.160301][ T6341] ? do_raw_spin_unlock+0x11d/0x230
[ 222.165619][ T6341] kobject_add_internal+0x6e0/0xd90
[ 222.171112][ T6341] kobject_init_and_add+0x128/0x190
[ 222.177113][ T6341] ? lockdep_softirqs_off+0x430/0x430
[ 222.182786][ T6341] ? kobject_add+0x230/0x230
[ 222.187674][ T6341] ? __init_swait_queue_head+0xa5/0x150
[ 222.193852][ T6341] gfs2_sys_fs_add+0x24f/0x4b0
[ 222.198852][ T6341] ? gfs2_recover_set+0x240/0x240
[ 222.203916][ T6341] ? snprintf+0xe5/0x140
[ 222.208175][ T6341] ? __free_pages+0x95/0x1a0
[ 222.212875][ T6341] ? vscnprintf+0x80/0x80
[ 222.217568][ T6341] gfs2_fill_super+0x120f/0x1f00
[ 222.222793][ T6341] ? gfs2_reconfigure+0xd30/0xd30
[ 222.227945][ T6341] ? sb_set_blocksize+0xa5/0xe0
[ 222.232809][ T6341] get_tree_bdev+0x3f1/0x610
[ 222.237544][ T6341] ? gfs2_reconfigure+0xd30/0xd30
[ 222.242652][ T6341] gfs2_get_tree+0x4d/0x1e0
[ 222.247152][ T6341] vfs_get_tree+0x88/0x270
[ 222.251747][ T6341] do_new_mount+0x24a/0xa40
[ 222.256339][ T6341] __se_sys_mount+0x2e3/0x3d0
[ 222.261178][ T6341] ? __x64_sys_mount+0xc0/0xc0
[ 222.265948][ T6341] ? lockdep_hardirqs_on+0x94/0x140
[ 222.271224][ T6341] ? __x64_sys_mount+0x1c/0xc0
[ 222.275974][ T6341] do_syscall_64+0x4c/0xa0
[ 222.280480][ T6341] ? clear_bhb_loop+0x30/0x80
[ 222.285351][ T6341] ? clear_bhb_loop+0x30/0x80
[ 222.290025][ T6341] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 222.295905][ T6341] RIP: 0033:0x7f58b132260a
[ 222.300307][ T6341] 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
[ 222.320151][ T6341] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 222.328833][ T6341] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 222.337292][ T6341] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
[ 222.345900][ T6341] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 222.354538][ T6341] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 222.364018][ T6341] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 222.372408][ T6341]
[ 222.376637][ T6341] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 222.391548][ T6341] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 222.453610][ T6347] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 222.461501][ T6347] CPU: 1 PID: 6347 Comm: syz.4.337 Not tainted syzkaller #0
[ 222.469153][ T6347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 222.480186][ T6347] Call Trace:
[ 222.483475][ T6347]
[ 222.486595][ T6347] dump_stack_lvl+0x188/0x250
[ 222.491289][ T6347] ? show_regs_print_info+0x20/0x20
[ 222.496597][ T6347] ? load_image+0x400/0x400
[ 222.501308][ T6347] sysfs_create_dir_ns+0x26a/0x290
[ 222.506431][ T6347] ? sysfs_warn_dup+0xa0/0xa0
[ 222.511280][ T6347] ? do_raw_spin_unlock+0x11d/0x230
[ 222.516679][ T6347] kobject_add_internal+0x6e0/0xd90
[ 222.521997][ T6347] kobject_init_and_add+0x128/0x190
[ 222.527312][ T6347] ? lockdep_softirqs_off+0x430/0x430
[ 222.533323][ T6347] ? kobject_add+0x230/0x230
[ 222.538210][ T6347] ? __init_swait_queue_head+0xa5/0x150
[ 222.544137][ T6347] gfs2_sys_fs_add+0x24f/0x4b0
[ 222.549115][ T6347] ? gfs2_recover_set+0x240/0x240
[ 222.554575][ T6347] ? snprintf+0xe5/0x140
[ 222.559064][ T6347] ? __free_pages+0x95/0x1a0
[ 222.563689][ T6347] ? vscnprintf+0x80/0x80
[ 222.568310][ T6347] gfs2_fill_super+0x120f/0x1f00
[ 222.573446][ T6347] ? gfs2_reconfigure+0xd30/0xd30
[ 222.578509][ T6347] ? sb_set_blocksize+0xa5/0xe0
[ 222.583472][ T6347] get_tree_bdev+0x3f1/0x610
[ 222.588129][ T6347] ? gfs2_reconfigure+0xd30/0xd30
[ 222.593253][ T6347] gfs2_get_tree+0x4d/0x1e0
[ 222.597936][ T6347] vfs_get_tree+0x88/0x270
[ 222.602453][ T6347] do_new_mount+0x24a/0xa40
[ 222.607251][ T6347] __se_sys_mount+0x2e3/0x3d0
[ 222.612311][ T6347] ? __x64_sys_mount+0xc0/0xc0
[ 222.617199][ T6347] ? lockdep_hardirqs_on+0x94/0x140
[ 222.622512][ T6347] ? __x64_sys_mount+0x1c/0xc0
[ 222.627401][ T6347] do_syscall_64+0x4c/0xa0
[ 222.631948][ T6347] ? clear_bhb_loop+0x30/0x80
[ 222.636810][ T6347] ? clear_bhb_loop+0x30/0x80
[ 222.641630][ T6347] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 222.647631][ T6347] RIP: 0033:0x7fded93a760a
[ 222.652051][ T6347] 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
[ 222.672316][ T6347] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 222.680832][ T6347] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 222.688902][ T6347] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 222.697374][ T6347] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 222.705935][ T6347] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 222.714296][ T6347] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 222.722572][ T6347]
[ 222.727435][ T6347] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 222.741220][ T6347] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 223.040984][ T6353] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 223.048845][ T6353] CPU: 0 PID: 6353 Comm: syz.2.339 Not tainted syzkaller #0
[ 223.056507][ T6353] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 223.067109][ T6353] Call Trace:
[ 223.070663][ T6353]
[ 223.073719][ T6353] dump_stack_lvl+0x188/0x250
[ 223.077500][ T6355] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 223.078426][ T6353] ? show_regs_print_info+0x20/0x20
[ 223.078454][ T6353] ? load_image+0x400/0x400
[ 223.078480][ T6353] sysfs_create_dir_ns+0x26a/0x290
[ 223.101522][ T6353] ? sysfs_warn_dup+0xa0/0xa0
[ 223.106644][ T6353] ? do_raw_spin_unlock+0x11d/0x230
[ 223.111933][ T6353] kobject_add_internal+0x6e0/0xd90
[ 223.117232][ T6353] kobject_init_and_add+0x128/0x190
[ 223.122525][ T6353] ? lockdep_softirqs_off+0x430/0x430
[ 223.128050][ T6353] ? kobject_add+0x230/0x230
[ 223.132642][ T6353] ? __init_swait_queue_head+0xa5/0x150
[ 223.138198][ T6353] gfs2_sys_fs_add+0x24f/0x4b0
[ 223.142966][ T6353] ? gfs2_recover_set+0x240/0x240
[ 223.147990][ T6353] ? snprintf+0xe5/0x140
[ 223.152408][ T6353] ? __free_pages+0x95/0x1a0
[ 223.157268][ T6353] ? vscnprintf+0x80/0x80
[ 223.161690][ T6353] gfs2_fill_super+0x120f/0x1f00
[ 223.166641][ T6353] ? gfs2_reconfigure+0xd30/0xd30
[ 223.171801][ T6353] ? sb_set_blocksize+0xa5/0xe0
[ 223.176926][ T6353] get_tree_bdev+0x3f1/0x610
[ 223.181534][ T6353] ? gfs2_reconfigure+0xd30/0xd30
[ 223.186670][ T6353] gfs2_get_tree+0x4d/0x1e0
[ 223.191206][ T6353] vfs_get_tree+0x88/0x270
[ 223.195733][ T6353] do_new_mount+0x24a/0xa40
[ 223.200373][ T6353] __se_sys_mount+0x2e3/0x3d0
[ 223.205145][ T6353] ? __x64_sys_mount+0xc0/0xc0
[ 223.210003][ T6353] ? lockdep_hardirqs_on+0x94/0x140
[ 223.215566][ T6353] ? __x64_sys_mount+0x1c/0xc0
[ 223.220423][ T6353] do_syscall_64+0x4c/0xa0
[ 223.224884][ T6353] ? clear_bhb_loop+0x30/0x80
[ 223.230077][ T6353] ? clear_bhb_loop+0x30/0x80
[ 223.234858][ T6353] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 223.240928][ T6353] RIP: 0033:0x7f95167b260a
[ 223.245366][ T6353] 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
[ 223.265417][ T6353] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 223.274028][ T6353] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 223.282093][ T6353] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
2026/03/31 16:50:06 executed programs: 334
[ 223.290296][ T6353] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 223.298555][ T6353] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 223.306532][ T6353] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
[ 223.314699][ T6353]
[ 223.317717][ T6355] CPU: 1 PID: 6355 Comm: syz.3.340 Not tainted syzkaller #0
[ 223.318512][ T6353] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 223.325002][ T6355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 223.325015][ T6355] Call Trace:
[ 223.325028][ T6355]
[ 223.325039][ T6355] dump_stack_lvl+0x188/0x250
[ 223.325063][ T6355] ? show_regs_print_info+0x20/0x20
[ 223.325084][ T6355] ? load_image+0x400/0x400
[ 223.325111][ T6355] sysfs_create_dir_ns+0x26a/0x290
[ 223.325131][ T6355] ? sysfs_warn_dup+0xa0/0xa0
[ 223.325148][ T6355] ? do_raw_spin_unlock+0x11d/0x230
[ 223.325170][ T6355] kobject_add_internal+0x6e0/0xd90
[ 223.325196][ T6355] kobject_init_and_add+0x128/0x190
[ 223.325213][ T6355] ? lockdep_softirqs_off+0x430/0x430
[ 223.325238][ T6355] ? kobject_add+0x230/0x230
[ 223.325261][ T6355] ? __init_swait_queue_head+0xa5/0x150
[ 223.325284][ T6355] gfs2_sys_fs_add+0x24f/0x4b0
[ 223.325305][ T6355] ? gfs2_recover_set+0x240/0x240
[ 223.325324][ T6355] ? snprintf+0xe5/0x140
[ 223.325339][ T6355] ? __free_pages+0x95/0x1a0
[ 223.325362][ T6355] ? vscnprintf+0x80/0x80
[ 223.325390][ T6355] gfs2_fill_super+0x120f/0x1f00
[ 223.325422][ T6355] ? gfs2_reconfigure+0xd30/0xd30
[ 223.325458][ T6355] ? sb_set_blocksize+0xa5/0xe0
[ 223.325477][ T6355] get_tree_bdev+0x3f1/0x610
[ 223.325499][ T6355] ? gfs2_reconfigure+0xd30/0xd30
[ 223.325520][ T6355] gfs2_get_tree+0x4d/0x1e0
[ 223.325542][ T6355] vfs_get_tree+0x88/0x270
[ 223.325562][ T6355] do_new_mount+0x24a/0xa40
[ 223.325589][ T6355] __se_sys_mount+0x2e3/0x3d0
[ 223.325613][ T6355] ? __x64_sys_mount+0xc0/0xc0
[ 223.339054][ T6353] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 223.349586][ T6355] ? lockdep_hardirqs_on+0x94/0x140
[ 223.349614][ T6355] ? __x64_sys_mount+0x1c/0xc0
[ 223.502404][ T6355] do_syscall_64+0x4c/0xa0
[ 223.506947][ T6355] ? clear_bhb_loop+0x30/0x80
[ 223.511790][ T6355] ? clear_bhb_loop+0x30/0x80
[ 223.516581][ T6355] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 223.522495][ T6355] RIP: 0033:0x7f94881c160a
[ 223.527293][ T6355] 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
[ 223.547349][ T6355] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 223.556063][ T6355] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 223.564606][ T6355] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 223.572904][ T6355] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 223.580996][ T6355] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 223.589019][ T6355] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 223.597106][ T6355]
[ 223.601367][ T6355] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 223.615383][ T6355] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 223.961136][ T6360] set_capacity_and_notify: 3 callbacks suppressed
[ 223.961150][ T6360] loop5: detected capacity change from 0 to 32768
[ 224.069800][ T6350] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 224.077346][ T6350] CPU: 1 PID: 6350 Comm: syz.0.338 Not tainted syzkaller #0
[ 224.084950][ T6350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 224.095318][ T6350] Call Trace:
[ 224.098834][ T6350]
[ 224.102052][ T6350] dump_stack_lvl+0x188/0x250
[ 224.106928][ T6350] ? show_regs_print_info+0x20/0x20
[ 224.112494][ T6350] ? load_image+0x400/0x400
[ 224.117039][ T6350] sysfs_create_dir_ns+0x26a/0x290
[ 224.122263][ T6350] ? sysfs_warn_dup+0xa0/0xa0
[ 224.127066][ T6350] ? do_raw_spin_unlock+0x11d/0x230
[ 224.132386][ T6350] kobject_add_internal+0x6e0/0xd90
[ 224.137761][ T6350] kobject_init_and_add+0x128/0x190
[ 224.143941][ T6350] ? lockdep_softirqs_off+0x430/0x430
[ 224.149544][ T6350] ? kobject_add+0x230/0x230
[ 224.154359][ T6350] ? __init_swait_queue_head+0xa5/0x150
[ 224.160019][ T6350] gfs2_sys_fs_add+0x24f/0x4b0
[ 224.164905][ T6350] ? gfs2_recover_set+0x240/0x240
[ 224.170124][ T6350] ? snprintf+0xe5/0x140
[ 224.174927][ T6350] ? __free_pages+0x95/0x1a0
[ 224.179556][ T6350] ? vscnprintf+0x80/0x80
[ 224.184171][ T6350] gfs2_fill_super+0x120f/0x1f00
[ 224.189498][ T6350] ? gfs2_reconfigure+0xd30/0xd30
[ 224.194725][ T6350] ? sb_set_blocksize+0xa5/0xe0
[ 224.199705][ T6350] get_tree_bdev+0x3f1/0x610
[ 224.204507][ T6350] ? gfs2_reconfigure+0xd30/0xd30
[ 224.209722][ T6350] gfs2_get_tree+0x4d/0x1e0
[ 224.214345][ T6350] vfs_get_tree+0x88/0x270
[ 224.218864][ T6350] do_new_mount+0x24a/0xa40
[ 224.223555][ T6350] __se_sys_mount+0x2e3/0x3d0
[ 224.228474][ T6350] ? __x64_sys_mount+0xc0/0xc0
[ 224.233343][ T6350] ? lockdep_hardirqs_on+0x94/0x140
[ 224.239029][ T6350] ? __x64_sys_mount+0x1c/0xc0
[ 224.243897][ T6350] do_syscall_64+0x4c/0xa0
[ 224.248521][ T6350] ? clear_bhb_loop+0x30/0x80
[ 224.253398][ T6350] ? clear_bhb_loop+0x30/0x80
[ 224.258082][ T6350] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 224.264008][ T6350] RIP: 0033:0x7f44434eb60a
[ 224.268610][ T6350] 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
[ 224.288675][ T6350] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 224.297465][ T6350] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 224.305463][ T6350] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 224.313790][ T6350] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
[ 224.321786][ T6350] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 224.329866][ T6350] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
[ 224.338041][ T6350]
[ 224.342766][ T6350] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 224.357160][ T6350] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 224.430554][ T6360] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 224.438258][ T6360] CPU: 1 PID: 6360 Comm: syz.5.342 Not tainted syzkaller #0
[ 224.445893][ T6360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 224.456335][ T6360] Call Trace:
[ 224.459620][ T6360]
[ 224.462831][ T6360] dump_stack_lvl+0x188/0x250
[ 224.467629][ T6360] ? show_regs_print_info+0x20/0x20
[ 224.472845][ T6360] ? load_image+0x400/0x400
[ 224.477373][ T6360] sysfs_create_dir_ns+0x26a/0x290
[ 224.482710][ T6360] ? sysfs_warn_dup+0xa0/0xa0
[ 224.487523][ T6360] ? do_raw_spin_unlock+0x11d/0x230
[ 224.492834][ T6360] kobject_add_internal+0x6e0/0xd90
[ 224.498056][ T6360] kobject_init_and_add+0x128/0x190
[ 224.503442][ T6360] ? lockdep_softirqs_off+0x430/0x430
[ 224.508841][ T6360] ? kobject_add+0x230/0x230
[ 224.513463][ T6360] ? __init_swait_queue_head+0xa5/0x150
[ 224.519132][ T6360] gfs2_sys_fs_add+0x24f/0x4b0
[ 224.524004][ T6360] ? gfs2_recover_set+0x240/0x240
[ 224.529180][ T6360] ? snprintf+0xe5/0x140
[ 224.533603][ T6360] ? __free_pages+0x95/0x1a0
[ 224.538226][ T6360] ? vscnprintf+0x80/0x80
[ 224.542579][ T6360] gfs2_fill_super+0x120f/0x1f00
[ 224.547550][ T6360] ? gfs2_reconfigure+0xd30/0xd30
[ 224.552699][ T6360] ? sb_set_blocksize+0xa5/0xe0
[ 224.558130][ T6360] get_tree_bdev+0x3f1/0x610
[ 224.563093][ T6360] ? gfs2_reconfigure+0xd30/0xd30
[ 224.568137][ T6360] gfs2_get_tree+0x4d/0x1e0
[ 224.572924][ T6360] vfs_get_tree+0x88/0x270
[ 224.577535][ T6360] do_new_mount+0x24a/0xa40
[ 224.582228][ T6360] __se_sys_mount+0x2e3/0x3d0
[ 224.586940][ T6360] ? __x64_sys_mount+0xc0/0xc0
[ 224.591709][ T6360] ? lockdep_hardirqs_on+0x94/0x140
[ 224.597105][ T6360] ? __x64_sys_mount+0x1c/0xc0
[ 224.602150][ T6360] do_syscall_64+0x4c/0xa0
[ 224.606679][ T6360] ? clear_bhb_loop+0x30/0x80
[ 224.611469][ T6360] ? clear_bhb_loop+0x30/0x80
[ 224.616709][ T6360] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 224.622713][ T6360] RIP: 0033:0x7f58b132260a
[ 224.627244][ T6360] 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
[ 224.647491][ T6360] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 224.656645][ T6360] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 224.665104][ T6360] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
[ 224.673271][ T6360] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 224.681528][ T6360] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 224.689666][ T6360] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 224.698109][ T6360]
[ 224.702839][ T6360] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 224.716647][ T6360] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 224.738899][ T6365] loop3: detected capacity change from 0 to 32768
[ 225.073501][ T6375] loop4: detected capacity change from 0 to 32768
[ 225.151892][ T6372] loop0: detected capacity change from 0 to 32768
[ 225.229356][ T6365] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 225.237256][ T6365] CPU: 0 PID: 6365 Comm: syz.3.344 Not tainted syzkaller #0
[ 225.245012][ T6365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 225.255741][ T6365] Call Trace:
[ 225.259299][ T6365]
[ 225.262521][ T6365] dump_stack_lvl+0x188/0x250
[ 225.267561][ T6365] ? show_regs_print_info+0x20/0x20
[ 225.272877][ T6365] ? load_image+0x400/0x400
[ 225.277589][ T6365] sysfs_create_dir_ns+0x26a/0x290
[ 225.283013][ T6365] ? sysfs_warn_dup+0xa0/0xa0
[ 225.287799][ T6365] ? do_raw_spin_unlock+0x11d/0x230
[ 225.293214][ T6365] kobject_add_internal+0x6e0/0xd90
[ 225.298438][ T6365] kobject_init_and_add+0x128/0x190
[ 225.303656][ T6365] ? lockdep_softirqs_off+0x430/0x430
[ 225.309036][ T6365] ? kobject_add+0x230/0x230
[ 225.314001][ T6365] ? __init_swait_queue_head+0xa5/0x150
[ 225.319837][ T6365] gfs2_sys_fs_add+0x24f/0x4b0
[ 225.324709][ T6365] ? gfs2_recover_set+0x240/0x240
[ 225.330029][ T6365] ? snprintf+0xe5/0x140
[ 225.334288][ T6365] ? __free_pages+0x95/0x1a0
[ 225.339094][ T6365] ? vscnprintf+0x80/0x80
[ 225.343789][ T6365] gfs2_fill_super+0x120f/0x1f00
[ 225.349173][ T6365] ? gfs2_reconfigure+0xd30/0xd30
[ 225.354434][ T6365] ? sb_set_blocksize+0xa5/0xe0
[ 225.359576][ T6365] get_tree_bdev+0x3f1/0x610
[ 225.364635][ T6365] ? gfs2_reconfigure+0xd30/0xd30
[ 225.369779][ T6365] gfs2_get_tree+0x4d/0x1e0
[ 225.374666][ T6365] vfs_get_tree+0x88/0x270
[ 225.379415][ T6365] do_new_mount+0x24a/0xa40
[ 225.384213][ T6365] __se_sys_mount+0x2e3/0x3d0
[ 225.389101][ T6365] ? __x64_sys_mount+0xc0/0xc0
[ 225.393901][ T6365] ? lockdep_hardirqs_on+0x94/0x140
[ 225.399540][ T6365] ? __x64_sys_mount+0x1c/0xc0
[ 225.404796][ T6365] do_syscall_64+0x4c/0xa0
[ 225.409841][ T6365] ? clear_bhb_loop+0x30/0x80
[ 225.414620][ T6365] ? clear_bhb_loop+0x30/0x80
[ 225.419504][ T6365] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 225.425690][ T6365] RIP: 0033:0x7f94881c160a
[ 225.430356][ T6365] 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
[ 225.450986][ T6365] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 225.459953][ T6365] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 225.468131][ T6365] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 225.476304][ T6365] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 225.484468][ T6365] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 225.492650][ T6365] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 225.501029][ T6365]
[ 225.504266][ T6375] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 225.504285][ T6365] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 225.512296][ T6375] CPU: 1 PID: 6375 Comm: syz.4.346 Not tainted syzkaller #0
[ 225.525507][ T6365] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 225.532819][ T6375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 225.532834][ T6375] Call Trace:
[ 225.532844][ T6375]
[ 225.532852][ T6375] dump_stack_lvl+0x188/0x250
[ 225.560815][ T6375] ? show_regs_print_info+0x20/0x20
[ 225.566401][ T6375] ? load_image+0x400/0x400
[ 225.571026][ T6375] sysfs_create_dir_ns+0x26a/0x290
[ 225.576287][ T6375] ? sysfs_warn_dup+0xa0/0xa0
[ 225.581334][ T6375] ? do_raw_spin_unlock+0x11d/0x230
[ 225.586559][ T6375] kobject_add_internal+0x6e0/0xd90
[ 225.592224][ T6375] kobject_init_and_add+0x128/0x190
[ 225.597634][ T6375] ? lockdep_softirqs_off+0x430/0x430
[ 225.603205][ T6375] ? kobject_add+0x230/0x230
[ 225.608003][ T6375] ? __init_swait_queue_head+0xa5/0x150
[ 225.613582][ T6375] gfs2_sys_fs_add+0x24f/0x4b0
[ 225.618479][ T6375] ? gfs2_recover_set+0x240/0x240
[ 225.623698][ T6375] ? snprintf+0xe5/0x140
[ 225.628142][ T6375] ? __free_pages+0x95/0x1a0
[ 225.632893][ T6375] ? vscnprintf+0x80/0x80
[ 225.637254][ T6375] gfs2_fill_super+0x120f/0x1f00
[ 225.642218][ T6375] ? gfs2_reconfigure+0xd30/0xd30
[ 225.647279][ T6375] ? sb_set_blocksize+0xa5/0xe0
[ 225.652151][ T6375] get_tree_bdev+0x3f1/0x610
[ 225.656947][ T6375] ? gfs2_reconfigure+0xd30/0xd30
[ 225.662534][ T6375] gfs2_get_tree+0x4d/0x1e0
[ 225.667240][ T6375] vfs_get_tree+0x88/0x270
[ 225.671775][ T6375] do_new_mount+0x24a/0xa40
[ 225.676398][ T6375] __se_sys_mount+0x2e3/0x3d0
[ 225.681205][ T6375] ? __x64_sys_mount+0xc0/0xc0
[ 225.686264][ T6375] ? lockdep_hardirqs_on+0x94/0x140
[ 225.691762][ T6375] ? __x64_sys_mount+0x1c/0xc0
[ 225.696560][ T6375] do_syscall_64+0x4c/0xa0
[ 225.701175][ T6375] ? clear_bhb_loop+0x30/0x80
[ 225.706141][ T6375] ? clear_bhb_loop+0x30/0x80
[ 225.711289][ T6375] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 225.717379][ T6375] RIP: 0033:0x7fded93a760a
[ 225.721974][ T6375] 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
[ 225.742375][ T6375] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 225.750966][ T6375] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 225.759420][ T6375] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 225.767384][ T6375] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 225.775455][ T6375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 225.783689][ T6375] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 225.792030][ T6375]
[ 225.796292][ T6375] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 225.810211][ T6375] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 225.862971][ T6372] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 225.870669][ T6372] CPU: 1 PID: 6372 Comm: syz.0.347 Not tainted syzkaller #0
[ 225.878052][ T6372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 225.888119][ T6372] Call Trace:
[ 225.891598][ T6372]
[ 225.894719][ T6372] dump_stack_lvl+0x188/0x250
[ 225.899681][ T6372] ? show_regs_print_info+0x20/0x20
[ 225.905004][ T6372] ? load_image+0x400/0x400
[ 225.909643][ T6372] sysfs_create_dir_ns+0x26a/0x290
[ 225.914759][ T6372] ? sysfs_warn_dup+0xa0/0xa0
[ 225.919434][ T6372] ? do_raw_spin_unlock+0x11d/0x230
[ 225.924633][ T6372] kobject_add_internal+0x6e0/0xd90
[ 225.929840][ T6372] kobject_init_and_add+0x128/0x190
[ 225.935134][ T6372] ? lockdep_softirqs_off+0x430/0x430
[ 225.940619][ T6372] ? kobject_add+0x230/0x230
[ 225.945229][ T6372] ? __init_swait_queue_head+0xa5/0x150
[ 225.951094][ T6372] gfs2_sys_fs_add+0x24f/0x4b0
[ 225.955893][ T6372] ? gfs2_recover_set+0x240/0x240
[ 225.961115][ T6372] ? snprintf+0xe5/0x140
[ 225.965597][ T6372] ? __free_pages+0x95/0x1a0
[ 225.970486][ T6372] ? vscnprintf+0x80/0x80
[ 225.975111][ T6372] gfs2_fill_super+0x120f/0x1f00
[ 225.981153][ T6372] ? gfs2_reconfigure+0xd30/0xd30
[ 225.986953][ T6372] ? sb_set_blocksize+0xa5/0xe0
[ 225.992044][ T6372] get_tree_bdev+0x3f1/0x610
[ 225.996937][ T6372] ? gfs2_reconfigure+0xd30/0xd30
[ 226.002074][ T6372] gfs2_get_tree+0x4d/0x1e0
[ 226.006624][ T6372] vfs_get_tree+0x88/0x270
[ 226.011170][ T6372] do_new_mount+0x24a/0xa40
[ 226.015797][ T6372] __se_sys_mount+0x2e3/0x3d0
[ 226.020697][ T6372] ? __x64_sys_mount+0xc0/0xc0
[ 226.025482][ T6372] ? lockdep_hardirqs_on+0x94/0x140
[ 226.030693][ T6372] ? __x64_sys_mount+0x1c/0xc0
[ 226.035472][ T6372] do_syscall_64+0x4c/0xa0
[ 226.039895][ T6372] ? clear_bhb_loop+0x30/0x80
[ 226.044575][ T6372] ? clear_bhb_loop+0x30/0x80
[ 226.049438][ T6372] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 226.055945][ T6372] RIP: 0033:0x7f44434eb60a
[ 226.060390][ T6372] 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
[ 226.081062][ T6372] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 226.089932][ T6372] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 226.097916][ T6372] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 226.105916][ T6372] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
[ 226.114147][ T6372] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 226.122292][ T6372] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
[ 226.130453][ T6372]
[ 226.134516][ T6372] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 226.147897][ T6372] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 226.488876][ T6381] loop5: detected capacity change from 0 to 32768
[ 226.549550][ T6379] loop3: detected capacity change from 0 to 32768
[ 226.559194][ T6381] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 226.566599][ T6381] CPU: 1 PID: 6381 Comm: syz.5.350 Not tainted syzkaller #0
[ 226.574078][ T6381] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 226.584829][ T6381] Call Trace:
[ 226.588383][ T6381]
[ 226.591346][ T6381] dump_stack_lvl+0x188/0x250
[ 226.596236][ T6381] ? show_regs_print_info+0x20/0x20
[ 226.601456][ T6381] ? load_image+0x400/0x400
[ 226.606001][ T6381] sysfs_create_dir_ns+0x26a/0x290
[ 226.611325][ T6381] ? sysfs_warn_dup+0xa0/0xa0
[ 226.616020][ T6381] ? do_raw_spin_unlock+0x11d/0x230
[ 226.621236][ T6381] kobject_add_internal+0x6e0/0xd90
[ 226.626453][ T6381] kobject_init_and_add+0x128/0x190
[ 226.631657][ T6381] ? lockdep_softirqs_off+0x430/0x430
[ 226.637126][ T6381] ? kobject_add+0x230/0x230
[ 226.641822][ T6381] ? __init_swait_queue_head+0xa5/0x150
[ 226.647476][ T6381] gfs2_sys_fs_add+0x24f/0x4b0
[ 226.652441][ T6381] ? gfs2_recover_set+0x240/0x240
[ 226.657915][ T6381] ? snprintf+0xe5/0x140
[ 226.662348][ T6381] ? __free_pages+0x95/0x1a0
[ 226.667055][ T6381] ? vscnprintf+0x80/0x80
[ 226.671605][ T6381] gfs2_fill_super+0x120f/0x1f00
[ 226.677080][ T6381] ? gfs2_reconfigure+0xd30/0xd30
[ 226.682277][ T6381] ? sb_set_blocksize+0xa5/0xe0
[ 226.687247][ T6381] get_tree_bdev+0x3f1/0x610
[ 226.691952][ T6381] ? gfs2_reconfigure+0xd30/0xd30
[ 226.696992][ T6381] gfs2_get_tree+0x4d/0x1e0
[ 226.701624][ T6381] vfs_get_tree+0x88/0x270
[ 226.706190][ T6381] do_new_mount+0x24a/0xa40
[ 226.710910][ T6381] __se_sys_mount+0x2e3/0x3d0
[ 226.715821][ T6381] ? __x64_sys_mount+0xc0/0xc0
[ 226.720814][ T6381] ? lockdep_hardirqs_on+0x94/0x140
[ 226.726206][ T6381] ? __x64_sys_mount+0x1c/0xc0
[ 226.731447][ T6381] do_syscall_64+0x4c/0xa0
[ 226.736367][ T6381] ? clear_bhb_loop+0x30/0x80
[ 226.741082][ T6381] ? clear_bhb_loop+0x30/0x80
[ 226.745953][ T6381] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 226.751863][ T6381] RIP: 0033:0x7f58b132260a
[ 226.756597][ T6381] 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
[ 226.776595][ T6381] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 226.785432][ T6381] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 226.793627][ T6381] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
[ 226.801717][ T6381] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 226.809954][ T6381] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 226.818120][ T6381] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 226.826293][ T6381]
[ 226.830439][ T6381] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 226.843935][ T6381] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 226.855181][ T6379] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 226.863058][ T6379] CPU: 0 PID: 6379 Comm: syz.3.349 Not tainted syzkaller #0
[ 226.870440][ T6379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 226.880896][ T6379] Call Trace:
[ 226.884194][ T6379]
[ 226.887251][ T6379] dump_stack_lvl+0x188/0x250
[ 226.892002][ T6379] ? show_regs_print_info+0x20/0x20
[ 226.897236][ T6379] ? load_image+0x400/0x400
[ 226.901877][ T6379] sysfs_create_dir_ns+0x26a/0x290
[ 226.907187][ T6379] ? sysfs_warn_dup+0xa0/0xa0
[ 226.911966][ T6379] ? do_raw_spin_unlock+0x11d/0x230
[ 226.917178][ T6379] kobject_add_internal+0x6e0/0xd90
[ 226.922483][ T6379] kobject_init_and_add+0x128/0x190
[ 226.927782][ T6379] ? lockdep_softirqs_off+0x430/0x430
[ 226.933524][ T6379] ? kobject_add+0x230/0x230
[ 226.938339][ T6379] ? __init_swait_queue_head+0xa5/0x150
[ 226.944138][ T6379] gfs2_sys_fs_add+0x24f/0x4b0
[ 226.949137][ T6379] ? gfs2_recover_set+0x240/0x240
[ 226.954588][ T6379] ? snprintf+0xe5/0x140
[ 226.958944][ T6379] ? __free_pages+0x95/0x1a0
[ 226.963730][ T6379] ? vscnprintf+0x80/0x80
[ 226.968085][ T6379] gfs2_fill_super+0x120f/0x1f00
[ 226.973163][ T6379] ? gfs2_reconfigure+0xd30/0xd30
[ 226.978227][ T6379] ? sb_set_blocksize+0xa5/0xe0
[ 226.983190][ T6379] get_tree_bdev+0x3f1/0x610
[ 226.987893][ T6379] ? gfs2_reconfigure+0xd30/0xd30
[ 226.993116][ T6379] gfs2_get_tree+0x4d/0x1e0
[ 226.997794][ T6379] vfs_get_tree+0x88/0x270
[ 227.002503][ T6379] do_new_mount+0x24a/0xa40
[ 227.007221][ T6379] __se_sys_mount+0x2e3/0x3d0
[ 227.012023][ T6379] ? __x64_sys_mount+0xc0/0xc0
[ 227.016812][ T6379] ? lockdep_hardirqs_on+0x94/0x140
[ 227.022111][ T6379] ? __x64_sys_mount+0x1c/0xc0
[ 227.027090][ T6379] do_syscall_64+0x4c/0xa0
[ 227.031644][ T6379] ? clear_bhb_loop+0x30/0x80
[ 227.036780][ T6379] ? clear_bhb_loop+0x30/0x80
[ 227.041831][ T6379] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 227.048101][ T6379] RIP: 0033:0x7f94881c160a
[ 227.052631][ T6379] 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
[ 227.072593][ T6379] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 227.081050][ T6379] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 227.089609][ T6379] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 227.097856][ T6379] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 227.105838][ T6379] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 227.114029][ T6379] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 227.122067][ T6379]
[ 227.125996][ T6379] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 227.134933][ T6368] loop2: detected capacity change from 0 to 32768
[ 227.139452][ T6379] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 227.783884][ T6393] loop5: detected capacity change from 0 to 32768
[ 228.090723][ T6393] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 228.098565][ T6393] CPU: 0 PID: 6393 Comm: syz.5.354 Not tainted syzkaller #0
[ 228.103503][ T6398] loop3: detected capacity change from 0 to 32768
[ 228.105853][ T6393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 228.123600][ T6393] Call Trace:
[ 228.126889][ T6393]
[ 228.129993][ T6393] dump_stack_lvl+0x188/0x250
[ 228.134682][ T6393] ? show_regs_print_info+0x20/0x20
[ 228.140075][ T6393] ? load_image+0x400/0x400
[ 228.144597][ T6393] sysfs_create_dir_ns+0x26a/0x290
[ 228.149804][ T6393] ? sysfs_warn_dup+0xa0/0xa0
[ 228.154583][ T6393] ? do_raw_spin_unlock+0x11d/0x230
[ 228.159878][ T6393] kobject_add_internal+0x6e0/0xd90
[ 228.165112][ T6393] kobject_init_and_add+0x128/0x190
[ 228.170366][ T6393] ? lockdep_softirqs_off+0x430/0x430
[ 228.176025][ T6393] ? kobject_add+0x230/0x230
[ 228.180644][ T6393] ? __init_swait_queue_head+0xa5/0x150
[ 228.186222][ T6393] gfs2_sys_fs_add+0x24f/0x4b0
[ 228.191269][ T6393] ? gfs2_recover_set+0x240/0x240
[ 228.196581][ T6393] ? snprintf+0xe5/0x140
[ 228.200848][ T6393] ? __free_pages+0x95/0x1a0
[ 228.205459][ T6393] ? vscnprintf+0x80/0x80
[ 228.209846][ T6393] gfs2_fill_super+0x120f/0x1f00
[ 228.214814][ T6393] ? gfs2_reconfigure+0xd30/0xd30
[ 228.219877][ T6393] ? sb_set_blocksize+0xa5/0xe0
[ 228.224920][ T6393] get_tree_bdev+0x3f1/0x610
[ 228.229535][ T6393] ? gfs2_reconfigure+0xd30/0xd30
[ 228.234867][ T6393] gfs2_get_tree+0x4d/0x1e0
[ 228.239862][ T6393] vfs_get_tree+0x88/0x270
[ 228.244474][ T6393] do_new_mount+0x24a/0xa40
[ 228.249116][ T6393] __se_sys_mount+0x2e3/0x3d0
[ 228.253915][ T6393] ? __x64_sys_mount+0xc0/0xc0
[ 228.258895][ T6393] ? lockdep_hardirqs_on+0x94/0x140
[ 228.264534][ T6393] ? __x64_sys_mount+0x1c/0xc0
[ 228.269318][ T6393] do_syscall_64+0x4c/0xa0
[ 228.273928][ T6393] ? clear_bhb_loop+0x30/0x80
[ 228.278742][ T6393] ? clear_bhb_loop+0x30/0x80
[ 228.283446][ T6393] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 228.289615][ T6393] RIP: 0033:0x7f58b132260a
[ 228.294224][ T6393] 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
[ 228.314714][ T6393] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 228.323348][ T6393] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 228.331531][ T6393] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
2026/03/31 16:50:12 executed programs: 350
[ 228.339912][ T6393] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 228.348353][ T6393] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 228.356616][ T6393] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 228.364703][ T6393]
[ 228.368868][ T6393] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 228.382797][ T6393] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 228.540429][ T6384] loop0: detected capacity change from 0 to 32768
[ 228.680082][ T6398] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 228.687659][ T6398] CPU: 1 PID: 6398 Comm: syz.3.356 Not tainted syzkaller #0
[ 228.695222][ T6398] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 228.705810][ T6398] Call Trace:
[ 228.709190][ T6398]
[ 228.712120][ T6398] dump_stack_lvl+0x188/0x250
[ 228.717089][ T6398] ? show_regs_print_info+0x20/0x20
[ 228.722638][ T6398] ? load_image+0x400/0x400
[ 228.727249][ T6398] sysfs_create_dir_ns+0x26a/0x290
[ 228.732551][ T6398] ? sysfs_warn_dup+0xa0/0xa0
[ 228.737414][ T6398] ? do_raw_spin_unlock+0x11d/0x230
[ 228.742713][ T6398] kobject_add_internal+0x6e0/0xd90
[ 228.748276][ T6398] kobject_init_and_add+0x128/0x190
[ 228.753487][ T6398] ? lockdep_softirqs_off+0x430/0x430
[ 228.759001][ T6398] ? kobject_add+0x230/0x230
[ 228.763636][ T6398] ? __init_swait_queue_head+0xa5/0x150
[ 228.769467][ T6398] gfs2_sys_fs_add+0x24f/0x4b0
[ 228.774436][ T6398] ? gfs2_recover_set+0x240/0x240
[ 228.779822][ T6398] ? snprintf+0xe5/0x140
[ 228.784492][ T6398] ? __free_pages+0x95/0x1a0
[ 228.789595][ T6398] ? vscnprintf+0x80/0x80
[ 228.794218][ T6398] gfs2_fill_super+0x120f/0x1f00
[ 228.799204][ T6398] ? gfs2_reconfigure+0xd30/0xd30
[ 228.804673][ T6398] ? sb_set_blocksize+0xa5/0xe0
[ 228.809903][ T6398] get_tree_bdev+0x3f1/0x610
[ 228.814689][ T6398] ? gfs2_reconfigure+0xd30/0xd30
[ 228.820048][ T6398] gfs2_get_tree+0x4d/0x1e0
[ 228.824729][ T6398] vfs_get_tree+0x88/0x270
[ 228.829339][ T6398] do_new_mount+0x24a/0xa40
[ 228.833935][ T6398] __se_sys_mount+0x2e3/0x3d0
[ 228.838708][ T6398] ? __x64_sys_mount+0xc0/0xc0
[ 228.843818][ T6398] ? lockdep_hardirqs_on+0x94/0x140
[ 228.849199][ T6398] ? __x64_sys_mount+0x1c/0xc0
[ 228.854254][ T6398] do_syscall_64+0x4c/0xa0
[ 228.858770][ T6398] ? clear_bhb_loop+0x30/0x80
[ 228.863760][ T6398] ? clear_bhb_loop+0x30/0x80
[ 228.868715][ T6398] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 228.874628][ T6398] RIP: 0033:0x7f94881c160a
[ 228.879726][ T6398] 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
[ 228.899969][ T6398] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 228.909168][ T6398] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 228.917321][ T6398] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 228.925516][ T6398] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 228.933672][ T6398] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 228.942165][ T6398] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 228.950621][ T6398]
[ 228.953758][ T6398] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 228.966992][ T6398] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 229.016441][ T6384] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 229.220723][ T6414] loop2: detected capacity change from 0 to 32768
[ 229.244091][ T6384] CPU: 0 PID: 6384 Comm: syz.0.351 Not tainted syzkaller #0
[ 229.251826][ T6384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 229.261905][ T6384] Call Trace:
[ 229.265371][ T6384]
[ 229.268306][ T6384] dump_stack_lvl+0x188/0x250
[ 229.273009][ T6384] ? show_regs_print_info+0x20/0x20
[ 229.278489][ T6384] ? load_image+0x400/0x400
[ 229.283020][ T6384] sysfs_create_dir_ns+0x26a/0x290
[ 229.288393][ T6384] ? sysfs_warn_dup+0xa0/0xa0
[ 229.293209][ T6384] ? do_raw_spin_unlock+0x11d/0x230
[ 229.298528][ T6384] kobject_add_internal+0x6e0/0xd90
[ 229.303851][ T6384] kobject_init_and_add+0x128/0x190
[ 229.309296][ T6384] ? lockdep_softirqs_off+0x430/0x430
[ 229.314699][ T6384] ? kobject_add+0x230/0x230
[ 229.319319][ T6384] ? __init_swait_queue_head+0xa5/0x150
[ 229.325158][ T6384] gfs2_sys_fs_add+0x24f/0x4b0
[ 229.330097][ T6384] ? gfs2_recover_set+0x240/0x240
[ 229.335152][ T6384] ? snprintf+0xe5/0x140
[ 229.339594][ T6384] ? __free_pages+0x95/0x1a0
[ 229.344308][ T6384] ? vscnprintf+0x80/0x80
[ 229.349634][ T6384] gfs2_fill_super+0x120f/0x1f00
[ 229.354958][ T6384] ? gfs2_reconfigure+0xd30/0xd30
[ 229.360203][ T6384] ? sb_set_blocksize+0xa5/0xe0
[ 229.365520][ T6384] get_tree_bdev+0x3f1/0x610
[ 229.370140][ T6384] ? gfs2_reconfigure+0xd30/0xd30
[ 229.375849][ T6384] gfs2_get_tree+0x4d/0x1e0
[ 229.380738][ T6384] vfs_get_tree+0x88/0x270
[ 229.385184][ T6384] do_new_mount+0x24a/0xa40
[ 229.389723][ T6384] __se_sys_mount+0x2e3/0x3d0
[ 229.394576][ T6384] ? __x64_sys_mount+0xc0/0xc0
[ 229.399456][ T6384] ? lockdep_hardirqs_on+0x94/0x140
[ 229.404910][ T6384] ? __x64_sys_mount+0x1c/0xc0
[ 229.409698][ T6384] do_syscall_64+0x4c/0xa0
[ 229.414564][ T6384] ? clear_bhb_loop+0x30/0x80
[ 229.419337][ T6384] ? clear_bhb_loop+0x30/0x80
[ 229.424115][ T6384] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 229.431068][ T6384] RIP: 0033:0x7f44434eb60a
[ 229.435979][ T6384] 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
[ 229.455941][ T6384] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 229.464383][ T6384] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 229.473351][ T6384] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 229.481437][ T6384] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
[ 229.489514][ T6384] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 229.497851][ T6384] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
[ 229.506463][ T6384]
[ 229.538808][ T6414] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 229.546899][ T6414] CPU: 0 PID: 6414 Comm: syz.2.359 Not tainted syzkaller #0
[ 229.556445][ T6414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 229.567321][ T6414] Call Trace:
[ 229.570703][ T6414]
[ 229.573818][ T6414] dump_stack_lvl+0x188/0x250
[ 229.578690][ T6414] ? show_regs_print_info+0x20/0x20
[ 229.583921][ T6414] ? load_image+0x400/0x400
[ 229.588552][ T6414] sysfs_create_dir_ns+0x26a/0x290
[ 229.594050][ T6414] ? sysfs_warn_dup+0xa0/0xa0
[ 229.598363][ T6384] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 229.599177][ T6414] ? do_raw_spin_unlock+0x11d/0x230
[ 229.599206][ T6414] kobject_add_internal+0x6e0/0xd90
[ 229.624653][ T6414] kobject_init_and_add+0x128/0x190
[ 229.630012][ T6414] ? lockdep_softirqs_off+0x430/0x430
[ 229.635772][ T6414] ? kobject_add+0x230/0x230
[ 229.640981][ T6414] ? __init_swait_queue_head+0xa5/0x150
[ 229.646759][ T6414] gfs2_sys_fs_add+0x24f/0x4b0
[ 229.651781][ T6414] ? gfs2_recover_set+0x240/0x240
[ 229.656911][ T6414] ? snprintf+0xe5/0x140
[ 229.661645][ T6414] ? __free_pages+0x95/0x1a0
[ 229.668164][ T6414] ? vscnprintf+0x80/0x80
[ 229.672620][ T6414] gfs2_fill_super+0x120f/0x1f00
[ 229.677396][ T6384] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 229.677985][ T6414] ? gfs2_reconfigure+0xd30/0xd30
[ 229.690023][ T6414] ? sb_set_blocksize+0xa5/0xe0
[ 229.695084][ T6414] get_tree_bdev+0x3f1/0x610
[ 229.699790][ T6414] ? gfs2_reconfigure+0xd30/0xd30
[ 229.705460][ T6414] gfs2_get_tree+0x4d/0x1e0
[ 229.710603][ T6414] vfs_get_tree+0x88/0x270
[ 229.715590][ T6414] do_new_mount+0x24a/0xa40
[ 229.720227][ T6414] __se_sys_mount+0x2e3/0x3d0
[ 229.725166][ T6414] ? __x64_sys_mount+0xc0/0xc0
[ 229.730159][ T6414] ? lockdep_hardirqs_on+0x94/0x140
[ 229.735609][ T6414] ? __x64_sys_mount+0x1c/0xc0
[ 229.740576][ T6414] do_syscall_64+0x4c/0xa0
[ 229.745176][ T6414] ? clear_bhb_loop+0x30/0x80
[ 229.749871][ T6414] ? clear_bhb_loop+0x30/0x80
[ 229.754664][ T6414] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 229.760923][ T6414] RIP: 0033:0x7f95167b260a
[ 229.765367][ T6414] 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
[ 229.785971][ T6414] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 229.795228][ T6414] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 229.803785][ T6414] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
[ 229.812474][ T6414] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 229.820913][ T6414] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 229.828912][ T6414] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
[ 229.837317][ T6414]
[ 229.841670][ T6414] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 229.855162][ T6414] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 230.133331][ T6426] loop3: detected capacity change from 0 to 32768
[ 230.288677][ T6426] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 230.296628][ T6426] CPU: 0 PID: 6426 Comm: syz.3.362 Not tainted syzkaller #0
[ 230.304285][ T6426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 230.314660][ T6426] Call Trace:
[ 230.318088][ T6426]
[ 230.321118][ T6426] dump_stack_lvl+0x188/0x250
[ 230.326249][ T6426] ? show_regs_print_info+0x20/0x20
[ 230.331587][ T6426] ? load_image+0x400/0x400
[ 230.336217][ T6426] sysfs_create_dir_ns+0x26a/0x290
[ 230.342489][ T6426] ? sysfs_warn_dup+0xa0/0xa0
[ 230.347429][ T6426] ? do_raw_spin_unlock+0x11d/0x230
[ 230.353024][ T6426] kobject_add_internal+0x6e0/0xd90
[ 230.358558][ T6426] kobject_init_and_add+0x128/0x190
[ 230.364125][ T6426] ? lockdep_softirqs_off+0x430/0x430
[ 230.370035][ T6426] ? kobject_add+0x230/0x230
[ 230.375003][ T6426] ? __init_swait_queue_head+0xa5/0x150
[ 230.380911][ T6426] gfs2_sys_fs_add+0x24f/0x4b0
[ 230.385811][ T6426] ? gfs2_recover_set+0x240/0x240
[ 230.391430][ T6426] ? snprintf+0xe5/0x140
[ 230.395918][ T6426] ? __free_pages+0x95/0x1a0
[ 230.400716][ T6426] ? vscnprintf+0x80/0x80
[ 230.405519][ T6426] gfs2_fill_super+0x120f/0x1f00
[ 230.411211][ T6426] ? gfs2_reconfigure+0xd30/0xd30
[ 230.416885][ T6426] ? sb_set_blocksize+0xa5/0xe0
[ 230.421872][ T6426] get_tree_bdev+0x3f1/0x610
[ 230.426663][ T6426] ? gfs2_reconfigure+0xd30/0xd30
[ 230.432312][ T6426] gfs2_get_tree+0x4d/0x1e0
[ 230.437447][ T6426] vfs_get_tree+0x88/0x270
[ 230.442717][ T6426] do_new_mount+0x24a/0xa40
[ 230.447675][ T6426] __se_sys_mount+0x2e3/0x3d0
[ 230.452954][ T6426] ? __x64_sys_mount+0xc0/0xc0
[ 230.458313][ T6426] ? lockdep_hardirqs_on+0x94/0x140
[ 230.463733][ T6426] ? __x64_sys_mount+0x1c/0xc0
[ 230.468942][ T6426] do_syscall_64+0x4c/0xa0
[ 230.473559][ T6426] ? clear_bhb_loop+0x30/0x80
[ 230.478366][ T6426] ? clear_bhb_loop+0x30/0x80
[ 230.483409][ T6426] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 230.489677][ T6426] RIP: 0033:0x7f94881c160a
[ 230.494195][ T6426] 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
[ 230.514116][ T6426] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 230.522986][ T6426] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 230.531161][ T6426] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 230.539676][ T6426] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 230.547971][ T6426] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 230.556318][ T6426] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 230.564766][ T6426]
[ 230.568846][ T6426] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 230.583585][ T6426] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 230.858355][ T6433] loop2: detected capacity change from 0 to 32768
[ 230.867393][ T6433] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 230.875206][ T6433] CPU: 1 PID: 6433 Comm: syz.2.364 Not tainted syzkaller #0
[ 230.882497][ T6433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 230.893178][ T6433] Call Trace:
[ 230.896556][ T6433]
[ 230.899661][ T6433] dump_stack_lvl+0x188/0x250
[ 230.904354][ T6433] ? show_regs_print_info+0x20/0x20
[ 230.909827][ T6433] ? load_image+0x400/0x400
[ 230.914348][ T6433] sysfs_create_dir_ns+0x26a/0x290
[ 230.919483][ T6433] ? sysfs_warn_dup+0xa0/0xa0
[ 230.924274][ T6433] ? do_raw_spin_unlock+0x11d/0x230
[ 230.929723][ T6433] kobject_add_internal+0x6e0/0xd90
[ 230.935053][ T6433] kobject_init_and_add+0x128/0x190
[ 230.940389][ T6433] ? lockdep_softirqs_off+0x430/0x430
[ 230.946048][ T6433] ? kobject_add+0x230/0x230
[ 230.950673][ T6433] ? __init_swait_queue_head+0xa5/0x150
[ 230.956495][ T6433] gfs2_sys_fs_add+0x24f/0x4b0
[ 230.961365][ T6433] ? gfs2_recover_set+0x240/0x240
[ 230.967113][ T6433] ? snprintf+0xe5/0x140
[ 230.971355][ T6433] ? __free_pages+0x95/0x1a0
[ 230.976114][ T6433] ? vscnprintf+0x80/0x80
[ 230.980637][ T6433] gfs2_fill_super+0x120f/0x1f00
[ 230.985962][ T6433] ? gfs2_reconfigure+0xd30/0xd30
[ 230.991705][ T6433] ? sb_set_blocksize+0xa5/0xe0
[ 230.997036][ T6433] get_tree_bdev+0x3f1/0x610
[ 231.001746][ T6433] ? gfs2_reconfigure+0xd30/0xd30
[ 231.006909][ T6433] gfs2_get_tree+0x4d/0x1e0
[ 231.011584][ T6433] vfs_get_tree+0x88/0x270
[ 231.015990][ T6433] do_new_mount+0x24a/0xa40
[ 231.020602][ T6433] __se_sys_mount+0x2e3/0x3d0
[ 231.025367][ T6433] ? __x64_sys_mount+0xc0/0xc0
[ 231.030214][ T6433] ? lockdep_hardirqs_on+0x94/0x140
[ 231.035583][ T6433] ? __x64_sys_mount+0x1c/0xc0
[ 231.041759][ T6433] do_syscall_64+0x4c/0xa0
[ 231.046448][ T6433] ? clear_bhb_loop+0x30/0x80
[ 231.051367][ T6433] ? clear_bhb_loop+0x30/0x80
[ 231.056480][ T6433] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 231.063111][ T6433] RIP: 0033:0x7f95167b260a
[ 231.067982][ T6433] 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
[ 231.092007][ T6433] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 231.101457][ T6433] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 231.109949][ T6433] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
[ 231.118348][ T6433] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 231.126370][ T6433] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 231.134794][ T6433] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
[ 231.143143][ T6433]
[ 231.146255][ T6433] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 231.160303][ T6433] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 231.922935][ T6443] loop4: detected capacity change from 0 to 32768
[ 232.072362][ T6443] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 232.080983][ T6443] CPU: 1 PID: 6443 Comm: syz.4.369 Not tainted syzkaller #0
[ 232.088403][ T6443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 232.098830][ T6443] Call Trace:
[ 232.102120][ T6443]
[ 232.105163][ T6443] dump_stack_lvl+0x188/0x250
[ 232.109960][ T6443] ? show_regs_print_info+0x20/0x20
[ 232.115299][ T6443] ? load_image+0x400/0x400
[ 232.119930][ T6443] sysfs_create_dir_ns+0x26a/0x290
[ 232.125419][ T6443] ? sysfs_warn_dup+0xa0/0xa0
[ 232.130205][ T6443] ? do_raw_spin_unlock+0x11d/0x230
[ 232.135558][ T6443] kobject_add_internal+0x6e0/0xd90
[ 232.140947][ T6443] kobject_init_and_add+0x128/0x190
[ 232.146247][ T6443] ? lockdep_softirqs_off+0x430/0x430
[ 232.151807][ T6443] ? kobject_add+0x230/0x230
[ 232.156409][ T6443] ? __init_swait_queue_head+0xa5/0x150
[ 232.161965][ T6443] gfs2_sys_fs_add+0x24f/0x4b0
[ 232.166916][ T6443] ? gfs2_recover_set+0x240/0x240
[ 232.172294][ T6443] ? snprintf+0xe5/0x140
[ 232.177090][ T6443] ? __free_pages+0x95/0x1a0
[ 232.182826][ T6443] ? vscnprintf+0x80/0x80
[ 232.187816][ T6443] gfs2_fill_super+0x120f/0x1f00
[ 232.193228][ T6443] ? gfs2_reconfigure+0xd30/0xd30
[ 232.198698][ T6443] ? sb_set_blocksize+0xa5/0xe0
[ 232.203943][ T6443] get_tree_bdev+0x3f1/0x610
[ 232.208931][ T6443] ? gfs2_reconfigure+0xd30/0xd30
[ 232.214417][ T6443] gfs2_get_tree+0x4d/0x1e0
[ 232.219198][ T6443] vfs_get_tree+0x88/0x270
[ 232.223990][ T6443] do_new_mount+0x24a/0xa40
[ 232.228510][ T6443] __se_sys_mount+0x2e3/0x3d0
[ 232.233393][ T6443] ? __x64_sys_mount+0xc0/0xc0
[ 232.238253][ T6443] ? lockdep_hardirqs_on+0x94/0x140
[ 232.243558][ T6443] ? __x64_sys_mount+0x1c/0xc0
[ 232.248560][ T6443] do_syscall_64+0x4c/0xa0
[ 232.253091][ T6443] ? clear_bhb_loop+0x30/0x80
[ 232.257866][ T6443] ? clear_bhb_loop+0x30/0x80
[ 232.262574][ T6443] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 232.268607][ T6443] RIP: 0033:0x7fded93a760a
[ 232.273256][ T6443] 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
[ 232.294307][ T6443] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 232.303189][ T6443] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 232.311266][ T6443] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 232.319432][ T6443] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 232.327576][ T6443] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 232.335731][ T6443] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 232.343808][ T6443]
[ 232.348392][ T6443] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 232.363778][ T6443] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 232.901267][ T6452] loop4: detected capacity change from 0 to 32768
[ 232.925352][ T6450] loop2: detected capacity change from 0 to 32768
[ 232.980260][ T6448] loop0: detected capacity change from 0 to 32768
[ 232.999936][ T6452] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 233.007739][ T6452] CPU: 0 PID: 6452 Comm: syz.4.373 Not tainted syzkaller #0
[ 233.015212][ T6452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 233.025372][ T6452] Call Trace:
[ 233.028765][ T6452]
[ 233.031820][ T6452] dump_stack_lvl+0x188/0x250
[ 233.036512][ T6452] ? show_regs_print_info+0x20/0x20
[ 233.041898][ T6452] ? load_image+0x400/0x400
[ 233.046437][ T6452] sysfs_create_dir_ns+0x26a/0x290
[ 233.051654][ T6452] ? sysfs_warn_dup+0xa0/0xa0
[ 233.056439][ T6452] ? do_raw_spin_unlock+0x11d/0x230
[ 233.061651][ T6452] kobject_add_internal+0x6e0/0xd90
[ 233.067597][ T6452] kobject_init_and_add+0x128/0x190
[ 233.073175][ T6452] ? lockdep_softirqs_off+0x430/0x430
[ 233.078781][ T6452] ? kobject_add+0x230/0x230
[ 233.083773][ T6452] ? __init_swait_queue_head+0xa5/0x150
[ 233.089835][ T6452] gfs2_sys_fs_add+0x24f/0x4b0
[ 233.095083][ T6452] ? gfs2_recover_set+0x240/0x240
[ 233.100229][ T6452] ? snprintf+0xe5/0x140
[ 233.104576][ T6452] ? __free_pages+0x95/0x1a0
[ 233.109272][ T6452] ? vscnprintf+0x80/0x80
[ 233.113628][ T6452] gfs2_fill_super+0x120f/0x1f00
[ 233.119030][ T6452] ? gfs2_reconfigure+0xd30/0xd30
[ 233.124087][ T6452] ? sb_set_blocksize+0xa5/0xe0
[ 233.128951][ T6452] get_tree_bdev+0x3f1/0x610
[ 233.133730][ T6452] ? gfs2_reconfigure+0xd30/0xd30
[ 233.139152][ T6452] gfs2_get_tree+0x4d/0x1e0
[ 233.144071][ T6452] vfs_get_tree+0x88/0x270
[ 233.148810][ T6452] do_new_mount+0x24a/0xa40
[ 233.153518][ T6452] __se_sys_mount+0x2e3/0x3d0
[ 233.158222][ T6452] ? __x64_sys_mount+0xc0/0xc0
[ 233.163190][ T6452] ? lockdep_hardirqs_on+0x94/0x140
[ 233.168490][ T6452] ? __x64_sys_mount+0x1c/0xc0
[ 233.173450][ T6452] do_syscall_64+0x4c/0xa0
[ 233.178072][ T6452] ? clear_bhb_loop+0x30/0x80
[ 233.182782][ T6452] ? clear_bhb_loop+0x30/0x80
[ 233.187562][ T6452] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 233.193735][ T6452] RIP: 0033:0x7fded93a760a
[ 233.198249][ T6452] 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
[ 233.218227][ T6452] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 233.226743][ T6452] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 233.234820][ T6452] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 233.242889][ T6452] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 233.251248][ T6452] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 233.259502][ T6452] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 233.267590][ T6452]
[ 233.271491][ T6452] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 233.285110][ T6452] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 233.363019][ T6450] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 233.371639][ T6450] CPU: 0 PID: 6450 Comm: syz.2.372 Not tainted syzkaller #0
[ 233.380001][ T6450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 233.390791][ T6450] Call Trace:
[ 233.394074][ T6450]
[ 233.397092][ T6450] dump_stack_lvl+0x188/0x250
[ 233.400026][ T6454] loop5: detected capacity change from 0 to 32768
[ 233.401870][ T6450] ? show_regs_print_info+0x20/0x20
[ 233.414244][ T6450] ? load_image+0x400/0x400
[ 233.419055][ T6450] sysfs_create_dir_ns+0x26a/0x290
[ 233.420524][ T6448] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 233.424293][ T6450] ? sysfs_warn_dup+0xa0/0xa0
[ 233.437630][ T6450] ? do_raw_spin_unlock+0x11d/0x230
[ 233.443308][ T6450] kobject_add_internal+0x6e0/0xd90
[ 233.448716][ T6450] kobject_init_and_add+0x128/0x190
[ 233.454116][ T6450] ? lockdep_softirqs_off+0x430/0x430
[ 233.459665][ T6450] ? kobject_add+0x230/0x230
[ 233.464532][ T6450] ? __init_swait_queue_head+0xa5/0x150
[ 233.470264][ T6450] gfs2_sys_fs_add+0x24f/0x4b0
[ 233.475208][ T6450] ? gfs2_recover_set+0x240/0x240
[ 233.480401][ T6450] ? snprintf+0xe5/0x140
[ 233.484751][ T6450] ? __free_pages+0x95/0x1a0
[ 233.489428][ T6450] ? vscnprintf+0x80/0x80
[ 233.493783][ T6450] gfs2_fill_super+0x120f/0x1f00
[ 233.499121][ T6450] ? gfs2_reconfigure+0xd30/0xd30
[ 233.504375][ T6450] ? sb_set_blocksize+0xa5/0xe0
[ 233.509449][ T6450] get_tree_bdev+0x3f1/0x610
[ 233.514419][ T6450] ? gfs2_reconfigure+0xd30/0xd30
[ 233.519439][ T6450] gfs2_get_tree+0x4d/0x1e0
[ 233.524209][ T6450] vfs_get_tree+0x88/0x270
[ 233.528628][ T6450] do_new_mount+0x24a/0xa40
[ 233.533306][ T6450] __se_sys_mount+0x2e3/0x3d0
[ 233.538001][ T6450] ? __x64_sys_mount+0xc0/0xc0
[ 233.542772][ T6450] ? lockdep_hardirqs_on+0x94/0x140
[ 233.547963][ T6450] ? __x64_sys_mount+0x1c/0xc0
[ 233.553084][ T6450] do_syscall_64+0x4c/0xa0
[ 233.557762][ T6450] ? clear_bhb_loop+0x30/0x80
[ 233.562782][ T6450] ? clear_bhb_loop+0x30/0x80
[ 233.567823][ T6450] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 233.574091][ T6450] RIP: 0033:0x7f95167b260a
[ 233.578721][ T6450] 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
[ 233.600022][ T6450] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 233.609048][ T6450] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 233.617538][ T6450] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
[ 233.625691][ T6450] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 233.633863][ T6450] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 233.641925][ T6450] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
[ 233.649990][ T6450]
[ 233.653010][ T6448] CPU: 1 PID: 6448 Comm: syz.0.371 Not tainted syzkaller #0
[ 233.653878][ T6450] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 233.660789][ T6448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 233.660801][ T6448] Call Trace:
[ 233.660808][ T6448]
[ 233.660815][ T6448] dump_stack_lvl+0x188/0x250
[ 233.660839][ T6448] ? show_regs_print_info+0x20/0x20
[ 233.675067][ T6450] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 233.684645][ T6448] ? load_image+0x400/0x400
[ 233.684677][ T6448] sysfs_create_dir_ns+0x26a/0x290
[ 233.684698][ T6448] ? sysfs_warn_dup+0xa0/0xa0
[ 233.722562][ T6448] ? do_raw_spin_unlock+0x11d/0x230
[ 233.728092][ T6448] kobject_add_internal+0x6e0/0xd90
[ 233.733333][ T6448] kobject_init_and_add+0x128/0x190
[ 233.738551][ T6448] ? lockdep_softirqs_off+0x430/0x430
[ 233.744034][ T6448] ? kobject_add+0x230/0x230
[ 233.748676][ T6448] ? __init_swait_queue_head+0xa5/0x150
[ 233.754510][ T6448] gfs2_sys_fs_add+0x24f/0x4b0
[ 233.759484][ T6448] ? gfs2_recover_set+0x240/0x240
[ 233.764524][ T6448] ? snprintf+0xe5/0x140
[ 233.768934][ T6448] ? __free_pages+0x95/0x1a0
[ 233.773841][ T6448] ? vscnprintf+0x80/0x80
[ 233.778661][ T6448] gfs2_fill_super+0x120f/0x1f00
[ 233.783903][ T6448] ? gfs2_reconfigure+0xd30/0xd30
[ 233.789046][ T6448] ? sb_set_blocksize+0xa5/0xe0
[ 233.794406][ T6448] get_tree_bdev+0x3f1/0x610
[ 233.799701][ T6448] ? gfs2_reconfigure+0xd30/0xd30
[ 233.805096][ T6448] gfs2_get_tree+0x4d/0x1e0
[ 233.810116][ T6448] vfs_get_tree+0x88/0x270
[ 233.814729][ T6448] do_new_mount+0x24a/0xa40
[ 233.819542][ T6448] __se_sys_mount+0x2e3/0x3d0
[ 233.824246][ T6448] ? __x64_sys_mount+0xc0/0xc0
[ 233.829069][ T6448] ? lockdep_hardirqs_on+0x94/0x140
[ 233.834734][ T6448] ? __x64_sys_mount+0x1c/0xc0
[ 233.839646][ T6448] do_syscall_64+0x4c/0xa0
[ 233.844633][ T6448] ? clear_bhb_loop+0x30/0x80
[ 233.849669][ T6448] ? clear_bhb_loop+0x30/0x80
[ 233.854927][ T6448] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 233.862090][ T6448] RIP: 0033:0x7f44434eb60a
[ 233.866524][ T6448] 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
[ 233.887102][ T6448] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 233.896025][ T6448] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 233.904735][ T6448] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 233.912899][ T6448] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
[ 233.921148][ T6448] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 233.929439][ T6448] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
[ 233.937549][ T6448]
[ 233.941913][ T6448] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 233.956000][ T6448] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 233.991120][ T6454] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 233.999169][ T6454] CPU: 1 PID: 6454 Comm: syz.5.374 Not tainted syzkaller #0
[ 234.006571][ T6454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 234.016919][ T6454] Call Trace:
[ 234.020214][ T6454]
[ 234.023252][ T6454] dump_stack_lvl+0x188/0x250
[ 234.027941][ T6454] ? show_regs_print_info+0x20/0x20
[ 234.033173][ T6454] ? load_image+0x400/0x400
[ 234.037706][ T6454] sysfs_create_dir_ns+0x26a/0x290
[ 234.043185][ T6454] ? sysfs_warn_dup+0xa0/0xa0
[ 234.048065][ T6454] ? do_raw_spin_unlock+0x11d/0x230
[ 234.053721][ T6454] kobject_add_internal+0x6e0/0xd90
[ 234.059314][ T6454] kobject_init_and_add+0x128/0x190
[ 234.065067][ T6454] ? lockdep_softirqs_off+0x430/0x430
[ 234.070558][ T6454] ? kobject_add+0x230/0x230
[ 234.075682][ T6454] ? __init_swait_queue_head+0xa5/0x150
[ 234.081440][ T6454] gfs2_sys_fs_add+0x24f/0x4b0
[ 234.086632][ T6454] ? gfs2_recover_set+0x240/0x240
[ 234.091772][ T6454] ? snprintf+0xe5/0x140
[ 234.096633][ T6454] ? __free_pages+0x95/0x1a0
[ 234.101699][ T6454] ? vscnprintf+0x80/0x80
[ 234.106226][ T6454] gfs2_fill_super+0x120f/0x1f00
[ 234.111493][ T6454] ? gfs2_reconfigure+0xd30/0xd30
[ 234.116641][ T6454] ? sb_set_blocksize+0xa5/0xe0
[ 234.121942][ T6454] get_tree_bdev+0x3f1/0x610
[ 234.126720][ T6454] ? gfs2_reconfigure+0xd30/0xd30
[ 234.131895][ T6454] gfs2_get_tree+0x4d/0x1e0
[ 234.136508][ T6454] vfs_get_tree+0x88/0x270
2026/03/31 16:50:17 executed programs: 368
[ 234.141307][ T6454] do_new_mount+0x24a/0xa40
[ 234.146453][ T6454] __se_sys_mount+0x2e3/0x3d0
[ 234.151460][ T6454] ? __x64_sys_mount+0xc0/0xc0
[ 234.156411][ T6454] ? lockdep_hardirqs_on+0x94/0x140
[ 234.161801][ T6454] ? __x64_sys_mount+0x1c/0xc0
[ 234.166921][ T6454] do_syscall_64+0x4c/0xa0
[ 234.168867][ T6457] loop3: detected capacity change from 0 to 32768
[ 234.171720][ T6454] ? clear_bhb_loop+0x30/0x80
[ 234.184228][ T6454] ? clear_bhb_loop+0x30/0x80
[ 234.189371][ T6454] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 234.195371][ T6454] RIP: 0033:0x7f58b132260a
[ 234.199913][ T6454] 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
[ 234.220460][ T6454] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 234.229150][ T6454] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 234.237144][ T6454] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
[ 234.245415][ T6454] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 234.253660][ T6454] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 234.262053][ T6454] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 234.270409][ T6454]
[ 234.274875][ T6454] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 234.289265][ T6454] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 234.330533][ T6457] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 234.337987][ T6457] CPU: 1 PID: 6457 Comm: syz.3.375 Not tainted syzkaller #0
[ 234.345910][ T6457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 234.356575][ T6457] Call Trace:
[ 234.359870][ T6457]
[ 234.362904][ T6457] dump_stack_lvl+0x188/0x250
[ 234.367783][ T6457] ? show_regs_print_info+0x20/0x20
[ 234.373010][ T6457] ? load_image+0x400/0x400
[ 234.377551][ T6457] sysfs_create_dir_ns+0x26a/0x290
[ 234.382787][ T6457] ? sysfs_warn_dup+0xa0/0xa0
[ 234.387529][ T6457] ? do_raw_spin_unlock+0x11d/0x230
[ 234.392858][ T6457] kobject_add_internal+0x6e0/0xd90
[ 234.398446][ T6457] kobject_init_and_add+0x128/0x190
[ 234.403846][ T6457] ? lockdep_softirqs_off+0x430/0x430
[ 234.409250][ T6457] ? kobject_add+0x230/0x230
[ 234.413959][ T6457] ? __init_swait_queue_head+0xa5/0x150
[ 234.419709][ T6457] gfs2_sys_fs_add+0x24f/0x4b0
[ 234.424679][ T6457] ? gfs2_recover_set+0x240/0x240
[ 234.429907][ T6457] ? snprintf+0xe5/0x140
[ 234.434561][ T6457] ? __free_pages+0x95/0x1a0
[ 234.439440][ T6457] ? vscnprintf+0x80/0x80
[ 234.444102][ T6457] gfs2_fill_super+0x120f/0x1f00
[ 234.449065][ T6457] ? gfs2_reconfigure+0xd30/0xd30
[ 234.454369][ T6457] ? sb_set_blocksize+0xa5/0xe0
[ 234.459328][ T6457] get_tree_bdev+0x3f1/0x610
[ 234.464027][ T6457] ? gfs2_reconfigure+0xd30/0xd30
[ 234.469296][ T6457] gfs2_get_tree+0x4d/0x1e0
[ 234.473832][ T6457] vfs_get_tree+0x88/0x270
[ 234.478267][ T6457] do_new_mount+0x24a/0xa40
[ 234.482887][ T6457] __se_sys_mount+0x2e3/0x3d0
[ 234.487670][ T6457] ? __x64_sys_mount+0xc0/0xc0
[ 234.492478][ T6457] ? lockdep_hardirqs_on+0x94/0x140
[ 234.497866][ T6457] ? __x64_sys_mount+0x1c/0xc0
[ 234.502923][ T6457] do_syscall_64+0x4c/0xa0
[ 234.507358][ T6457] ? clear_bhb_loop+0x30/0x80
[ 234.512145][ T6457] ? clear_bhb_loop+0x30/0x80
[ 234.516934][ T6457] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 234.523150][ T6457] RIP: 0033:0x7f94881c160a
[ 234.528032][ T6457] 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
[ 234.548156][ T6457] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 234.557826][ T6457] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 234.566380][ T6457] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 234.574920][ T6457] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 234.583108][ T6457] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 234.591543][ T6457] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 234.599820][ T6457]
[ 234.602262][ T6460] loop4: detected capacity change from 0 to 32768
[ 234.603701][ T6457] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 234.623049][ T6457] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 234.901290][ T6463] loop2: detected capacity change from 0 to 32768
[ 234.992700][ T6460] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.000159][ T6460] CPU: 0 PID: 6460 Comm: syz.4.376 Not tainted syzkaller #0
[ 235.007653][ T6460] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 235.017810][ T6460] Call Trace:
[ 235.021107][ T6460]
[ 235.024126][ T6460] dump_stack_lvl+0x188/0x250
[ 235.028917][ T6460] ? show_regs_print_info+0x20/0x20
[ 235.034225][ T6460] ? load_image+0x400/0x400
[ 235.038751][ T6460] sysfs_create_dir_ns+0x26a/0x290
[ 235.044153][ T6460] ? sysfs_warn_dup+0xa0/0xa0
[ 235.048847][ T6460] ? do_raw_spin_unlock+0x11d/0x230
[ 235.054414][ T6460] kobject_add_internal+0x6e0/0xd90
[ 235.059822][ T6460] kobject_init_and_add+0x128/0x190
[ 235.065401][ T6460] ? lockdep_softirqs_off+0x430/0x430
[ 235.070975][ T6460] ? kobject_add+0x230/0x230
[ 235.075720][ T6460] ? __init_swait_queue_head+0xa5/0x150
[ 235.081640][ T6460] gfs2_sys_fs_add+0x24f/0x4b0
[ 235.086503][ T6460] ? gfs2_recover_set+0x240/0x240
[ 235.091307][ T6471] loop5: detected capacity change from 0 to 32768
[ 235.091543][ T6460] ? snprintf+0xe5/0x140
[ 235.102484][ T6460] ? __free_pages+0x95/0x1a0
[ 235.107348][ T6460] ? vscnprintf+0x80/0x80
[ 235.111701][ T6460] gfs2_fill_super+0x120f/0x1f00
[ 235.116852][ T6460] ? gfs2_reconfigure+0xd30/0xd30
[ 235.121976][ T6460] ? sb_set_blocksize+0xa5/0xe0
[ 235.127057][ T6460] get_tree_bdev+0x3f1/0x610
[ 235.131668][ T6460] ? gfs2_reconfigure+0xd30/0xd30
[ 235.136713][ T6460] gfs2_get_tree+0x4d/0x1e0
[ 235.141517][ T6460] vfs_get_tree+0x88/0x270
[ 235.146244][ T6460] do_new_mount+0x24a/0xa40
[ 235.150769][ T6460] __se_sys_mount+0x2e3/0x3d0
[ 235.155664][ T6460] ? __x64_sys_mount+0xc0/0xc0
[ 235.160620][ T6460] ? lockdep_hardirqs_on+0x94/0x140
[ 235.165920][ T6460] ? __x64_sys_mount+0x1c/0xc0
[ 235.170712][ T6460] do_syscall_64+0x4c/0xa0
[ 235.175234][ T6460] ? clear_bhb_loop+0x30/0x80
[ 235.180027][ T6460] ? clear_bhb_loop+0x30/0x80
[ 235.184725][ T6460] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 235.190902][ T6460] RIP: 0033:0x7fded93a760a
[ 235.195509][ T6460] 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
[ 235.215445][ T6460] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.224319][ T6460] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 235.232314][ T6460] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 235.240412][ T6460] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 235.248405][ T6460] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 235.256727][ T6460] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 235.264744][ T6460]
[ 235.267957][ T6460] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.281224][ T6460] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.295779][ T6463] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.304490][ T6463] CPU: 0 PID: 6463 Comm: syz.2.377 Not tainted syzkaller #0
[ 235.312116][ T6463] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 235.322330][ T6463] Call Trace:
[ 235.325655][ T6463]
[ 235.328689][ T6463] dump_stack_lvl+0x188/0x250
[ 235.333564][ T6463] ? show_regs_print_info+0x20/0x20
[ 235.338884][ T6463] ? load_image+0x400/0x400
[ 235.343648][ T6463] sysfs_create_dir_ns+0x26a/0x290
[ 235.349307][ T6463] ? sysfs_warn_dup+0xa0/0xa0
[ 235.354368][ T6463] ? do_raw_spin_unlock+0x11d/0x230
[ 235.360114][ T6463] kobject_add_internal+0x6e0/0xd90
[ 235.365434][ T6463] kobject_init_and_add+0x128/0x190
[ 235.370655][ T6463] ? lockdep_softirqs_off+0x430/0x430
[ 235.376069][ T6463] ? kobject_add+0x230/0x230
[ 235.380771][ T6463] ? __init_swait_queue_head+0xa5/0x150
[ 235.386519][ T6463] gfs2_sys_fs_add+0x24f/0x4b0
[ 235.391401][ T6463] ? gfs2_recover_set+0x240/0x240
[ 235.396817][ T6463] ? snprintf+0xe5/0x140
[ 235.401097][ T6463] ? __free_pages+0x95/0x1a0
[ 235.405923][ T6463] ? vscnprintf+0x80/0x80
[ 235.410548][ T6463] gfs2_fill_super+0x120f/0x1f00
[ 235.415769][ T6463] ? gfs2_reconfigure+0xd30/0xd30
[ 235.421054][ T6463] ? sb_set_blocksize+0xa5/0xe0
[ 235.426017][ T6463] get_tree_bdev+0x3f1/0x610
[ 235.430813][ T6463] ? gfs2_reconfigure+0xd30/0xd30
[ 235.436041][ T6463] gfs2_get_tree+0x4d/0x1e0
[ 235.440995][ T6463] vfs_get_tree+0x88/0x270
[ 235.445511][ T6463] do_new_mount+0x24a/0xa40
[ 235.445663][ T6476] loop0: detected capacity change from 0 to 32768
[ 235.450112][ T6463] __se_sys_mount+0x2e3/0x3d0
[ 235.450136][ T6463] ? __x64_sys_mount+0xc0/0xc0
[ 235.466133][ T6463] ? lockdep_hardirqs_on+0x94/0x140
[ 235.471618][ T6463] ? __x64_sys_mount+0x1c/0xc0
[ 235.476402][ T6463] do_syscall_64+0x4c/0xa0
[ 235.480845][ T6463] ? clear_bhb_loop+0x30/0x80
[ 235.485617][ T6463] ? clear_bhb_loop+0x30/0x80
[ 235.490470][ T6463] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 235.496642][ T6463] RIP: 0033:0x7f95167b260a
[ 235.501067][ T6463] 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
[ 235.521205][ T6463] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.529626][ T6463] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 235.537708][ T6463] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
[ 235.545877][ T6463] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 235.554215][ T6463] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 235.555404][ T6471] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.562566][ T6463] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
[ 235.562597][ T6463]
[ 235.566656][ T6463] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.570394][ T6471] CPU: 1 PID: 6471 Comm: syz.5.378 Not tainted syzkaller #0
[ 235.578611][ T6463] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.581644][ T6471] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 235.618973][ T6471] Call Trace:
[ 235.622248][ T6471]
[ 235.625251][ T6471] dump_stack_lvl+0x188/0x250
[ 235.630040][ T6471] ? show_regs_print_info+0x20/0x20
[ 235.635326][ T6471] ? load_image+0x400/0x400
[ 235.639924][ T6471] sysfs_create_dir_ns+0x26a/0x290
[ 235.645297][ T6471] ? sysfs_warn_dup+0xa0/0xa0
[ 235.649957][ T6471] ? do_raw_spin_unlock+0x11d/0x230
[ 235.655701][ T6471] kobject_add_internal+0x6e0/0xd90
[ 235.661072][ T6471] kobject_init_and_add+0x128/0x190
[ 235.666521][ T6471] ? lockdep_softirqs_off+0x430/0x430
[ 235.672080][ T6471] ? kobject_add+0x230/0x230
[ 235.676844][ T6471] ? __init_swait_queue_head+0xa5/0x150
[ 235.682741][ T6471] gfs2_sys_fs_add+0x24f/0x4b0
[ 235.687552][ T6471] ? gfs2_recover_set+0x240/0x240
[ 235.693021][ T6471] ? snprintf+0xe5/0x140
[ 235.697485][ T6471] ? __free_pages+0x95/0x1a0
[ 235.702171][ T6471] ? vscnprintf+0x80/0x80
[ 235.706614][ T6471] gfs2_fill_super+0x120f/0x1f00
[ 235.711565][ T6471] ? gfs2_reconfigure+0xd30/0xd30
[ 235.716764][ T6471] ? sb_set_blocksize+0xa5/0xe0
[ 235.721697][ T6471] get_tree_bdev+0x3f1/0x610
[ 235.726485][ T6471] ? gfs2_reconfigure+0xd30/0xd30
[ 235.731588][ T6471] gfs2_get_tree+0x4d/0x1e0
[ 235.736168][ T6471] vfs_get_tree+0x88/0x270
[ 235.740659][ T6471] do_new_mount+0x24a/0xa40
[ 235.745163][ T6471] __se_sys_mount+0x2e3/0x3d0
[ 235.749832][ T6471] ? __x64_sys_mount+0xc0/0xc0
[ 235.754772][ T6471] ? lockdep_hardirqs_on+0x94/0x140
[ 235.760001][ T6471] ? __x64_sys_mount+0x1c/0xc0
[ 235.764876][ T6471] do_syscall_64+0x4c/0xa0
[ 235.769300][ T6471] ? clear_bhb_loop+0x30/0x80
[ 235.774050][ T6471] ? clear_bhb_loop+0x30/0x80
[ 235.778886][ T6471] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 235.785025][ T6471] RIP: 0033:0x7f58b132260a
[ 235.789651][ T6471] 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
[ 235.809920][ T6471] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.818720][ T6471] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 235.826864][ T6471] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
[ 235.835034][ T6471] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 235.843395][ T6471] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 235.851623][ T6471] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 235.859680][ T6471]
[ 235.863548][ T6471] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.876878][ T6471] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.887469][ T6476] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.895461][ T6476] CPU: 1 PID: 6476 Comm: syz.0.379 Not tainted syzkaller #0
[ 235.902956][ T6476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 235.913192][ T6476] Call Trace:
[ 235.916489][ T6476]
[ 235.919434][ T6476] dump_stack_lvl+0x188/0x250
[ 235.924166][ T6476] ? show_regs_print_info+0x20/0x20
[ 235.929496][ T6476] ? load_image+0x400/0x400
[ 235.934035][ T6476] sysfs_create_dir_ns+0x26a/0x290
[ 235.939191][ T6476] ? sysfs_warn_dup+0xa0/0xa0
[ 235.943900][ T6476] ? do_raw_spin_unlock+0x11d/0x230
[ 235.949125][ T6476] kobject_add_internal+0x6e0/0xd90
[ 235.954439][ T6476] kobject_init_and_add+0x128/0x190
[ 235.959657][ T6476] ? lockdep_softirqs_off+0x430/0x430
[ 235.965190][ T6476] ? kobject_add+0x230/0x230
[ 235.969809][ T6476] ? __init_swait_queue_head+0xa5/0x150
[ 235.975640][ T6476] gfs2_sys_fs_add+0x24f/0x4b0
[ 235.980542][ T6476] ? gfs2_recover_set+0x240/0x240
[ 235.985674][ T6476] ? snprintf+0xe5/0x140
[ 235.990016][ T6476] ? __free_pages+0x95/0x1a0
[ 235.994710][ T6476] ? vscnprintf+0x80/0x80
[ 235.999149][ T6476] gfs2_fill_super+0x120f/0x1f00
[ 236.004121][ T6476] ? gfs2_reconfigure+0xd30/0xd30
[ 236.009176][ T6476] ? sb_set_blocksize+0xa5/0xe0
[ 236.014062][ T6476] get_tree_bdev+0x3f1/0x610
[ 236.018765][ T6476] ? gfs2_reconfigure+0xd30/0xd30
[ 236.023896][ T6476] gfs2_get_tree+0x4d/0x1e0
[ 236.028641][ T6476] vfs_get_tree+0x88/0x270
[ 236.033187][ T6476] do_new_mount+0x24a/0xa40
[ 236.037870][ T6476] __se_sys_mount+0x2e3/0x3d0
[ 236.042768][ T6476] ? __x64_sys_mount+0xc0/0xc0
[ 236.047624][ T6476] ? lockdep_hardirqs_on+0x94/0x140
[ 236.053000][ T6476] ? __x64_sys_mount+0x1c/0xc0
[ 236.057788][ T6476] do_syscall_64+0x4c/0xa0
[ 236.062233][ T6476] ? clear_bhb_loop+0x30/0x80
[ 236.067024][ T6476] ? clear_bhb_loop+0x30/0x80
[ 236.071866][ T6476] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 236.077783][ T6476] RIP: 0033:0x7f44434eb60a
[ 236.082434][ T6476] 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
[ 236.102407][ T6476] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 236.111043][ T6476] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 236.119137][ T6476] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 236.127731][ T6476] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
[ 236.136010][ T6476] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 236.144258][ T6476] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
[ 236.152341][ T6476]
[ 236.156603][ T6476] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 236.169747][ T6476] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 236.191381][ T6480] loop3: detected capacity change from 0 to 32768
[ 236.850680][ T6486] loop4: detected capacity change from 0 to 32768
[ 236.896034][ T6480] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 236.903583][ T6480] CPU: 1 PID: 6480 Comm: syz.3.380 Not tainted syzkaller #0
[ 236.910878][ T6480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 236.921036][ T6480] Call Trace:
[ 236.924401][ T6480]
[ 236.927419][ T6480] dump_stack_lvl+0x188/0x250
[ 236.932196][ T6480] ? show_regs_print_info+0x20/0x20
[ 236.937487][ T6480] ? load_image+0x400/0x400
[ 236.942010][ T6480] sysfs_create_dir_ns+0x26a/0x290
[ 236.947257][ T6480] ? sysfs_warn_dup+0xa0/0xa0
[ 236.952133][ T6480] ? do_raw_spin_unlock+0x11d/0x230
[ 236.957454][ T6480] kobject_add_internal+0x6e0/0xd90
[ 236.962764][ T6480] kobject_init_and_add+0x128/0x190
[ 236.968109][ T6480] ? lockdep_softirqs_off+0x430/0x430
[ 236.973513][ T6480] ? kobject_add+0x230/0x230
[ 236.978209][ T6480] ? __init_swait_queue_head+0xa5/0x150
[ 236.983854][ T6480] gfs2_sys_fs_add+0x24f/0x4b0
[ 236.988639][ T6480] ? gfs2_recover_set+0x240/0x240
[ 236.993686][ T6480] ? snprintf+0xe5/0x140
[ 236.997943][ T6480] ? __free_pages+0x95/0x1a0
[ 237.002552][ T6480] ? vscnprintf+0x80/0x80
[ 237.006899][ T6480] gfs2_fill_super+0x120f/0x1f00
[ 237.011879][ T6480] ? gfs2_reconfigure+0xd30/0xd30
[ 237.016935][ T6480] ? sb_set_blocksize+0xa5/0xe0
[ 237.021882][ T6480] get_tree_bdev+0x3f1/0x610
[ 237.026484][ T6480] ? gfs2_reconfigure+0xd30/0xd30
[ 237.031528][ T6480] gfs2_get_tree+0x4d/0x1e0
[ 237.036054][ T6480] vfs_get_tree+0x88/0x270
[ 237.040558][ T6480] do_new_mount+0x24a/0xa40
[ 237.045150][ T6480] __se_sys_mount+0x2e3/0x3d0
[ 237.049822][ T6480] ? __x64_sys_mount+0xc0/0xc0
[ 237.054581][ T6480] ? lockdep_hardirqs_on+0x94/0x140
[ 237.059870][ T6480] ? __x64_sys_mount+0x1c/0xc0
[ 237.064829][ T6480] do_syscall_64+0x4c/0xa0
[ 237.069392][ T6480] ? clear_bhb_loop+0x30/0x80
[ 237.074080][ T6480] ? clear_bhb_loop+0x30/0x80
[ 237.078806][ T6480] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 237.084700][ T6480] RIP: 0033:0x7f94881c160a
[ 237.089192][ T6480] 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
[ 237.108971][ T6480] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 237.117486][ T6480] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 237.125641][ T6480] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 237.134008][ T6480] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 237.142422][ T6480] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 237.150770][ T6480] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 237.158924][ T6480]
[ 237.163659][ T6480] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 237.177103][ T6480] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 237.457655][ T6486] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 237.466562][ T6486] CPU: 1 PID: 6486 Comm: syz.4.383 Not tainted syzkaller #0
[ 237.474040][ T6486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 237.484275][ T6486] Call Trace:
[ 237.487555][ T6486]
[ 237.490479][ T6486] dump_stack_lvl+0x188/0x250
[ 237.495180][ T6486] ? show_regs_print_info+0x20/0x20
[ 237.500390][ T6486] ? load_image+0x400/0x400
[ 237.504917][ T6486] sysfs_create_dir_ns+0x26a/0x290
[ 237.510230][ T6486] ? sysfs_warn_dup+0xa0/0xa0
[ 237.514932][ T6486] ? do_raw_spin_unlock+0x11d/0x230
[ 237.520144][ T6486] kobject_add_internal+0x6e0/0xd90
[ 237.525549][ T6486] kobject_init_and_add+0x128/0x190
[ 237.530853][ T6486] ? lockdep_softirqs_off+0x430/0x430
[ 237.536253][ T6486] ? kobject_add+0x230/0x230
[ 237.540985][ T6486] ? __init_swait_queue_head+0xa5/0x150
[ 237.546655][ T6486] gfs2_sys_fs_add+0x24f/0x4b0
[ 237.551675][ T6486] ? gfs2_recover_set+0x240/0x240
[ 237.556727][ T6486] ? snprintf+0xe5/0x140
[ 237.561432][ T6486] ? __free_pages+0x95/0x1a0
[ 237.566074][ T6486] ? vscnprintf+0x80/0x80
[ 237.570526][ T6486] gfs2_fill_super+0x120f/0x1f00
[ 237.575495][ T6486] ? gfs2_reconfigure+0xd30/0xd30
[ 237.580645][ T6486] ? sb_set_blocksize+0xa5/0xe0
[ 237.585721][ T6486] get_tree_bdev+0x3f1/0x610
[ 237.590332][ T6486] ? gfs2_reconfigure+0xd30/0xd30
[ 237.595468][ T6486] gfs2_get_tree+0x4d/0x1e0
[ 237.599991][ T6486] vfs_get_tree+0x88/0x270
[ 237.604597][ T6486] do_new_mount+0x24a/0xa40
[ 237.609140][ T6486] __se_sys_mount+0x2e3/0x3d0
[ 237.613837][ T6486] ? __x64_sys_mount+0xc0/0xc0
[ 237.618617][ T6486] ? lockdep_hardirqs_on+0x94/0x140
[ 237.623830][ T6486] ? __x64_sys_mount+0x1c/0xc0
[ 237.628794][ T6486] do_syscall_64+0x4c/0xa0
[ 237.633276][ T6486] ? clear_bhb_loop+0x30/0x80
[ 237.637976][ T6486] ? clear_bhb_loop+0x30/0x80
[ 237.642679][ T6486] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 237.648674][ T6486] RIP: 0033:0x7fded93a760a
[ 237.653197][ T6486] 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
[ 237.673369][ T6486] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 237.682188][ T6486] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 237.690392][ T6486] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 237.698620][ T6486] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 237.706869][ T6486] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 237.714845][ T6486] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 237.723116][ T6486]
[ 237.726265][ T6486] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 237.739909][ T6486] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 237.754941][ T6491] loop5: detected capacity change from 0 to 32768
[ 237.861019][ T6501] loop0: detected capacity change from 0 to 32768
[ 237.906588][ T6491] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 237.914176][ T6491] CPU: 0 PID: 6491 Comm: syz.5.385 Not tainted syzkaller #0
[ 237.921568][ T6491] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 237.931720][ T6491] Call Trace:
[ 237.935106][ T6491]
[ 237.938319][ T6491] dump_stack_lvl+0x188/0x250
[ 237.943297][ T6491] ? show_regs_print_info+0x20/0x20
[ 237.948972][ T6491] ? load_image+0x400/0x400
[ 237.953589][ T6491] sysfs_create_dir_ns+0x26a/0x290
[ 237.959076][ T6491] ? sysfs_warn_dup+0xa0/0xa0
[ 237.963858][ T6491] ? do_raw_spin_unlock+0x11d/0x230
[ 237.969175][ T6491] kobject_add_internal+0x6e0/0xd90
[ 237.974499][ T6491] kobject_init_and_add+0x128/0x190
[ 237.980096][ T6491] ? lockdep_softirqs_off+0x430/0x430
[ 237.985672][ T6491] ? kobject_add+0x230/0x230
[ 237.990651][ T6491] ? __init_swait_queue_head+0xa5/0x150
[ 237.996661][ T6491] gfs2_sys_fs_add+0x24f/0x4b0
[ 238.001716][ T6491] ? gfs2_recover_set+0x240/0x240
[ 238.006860][ T6491] ? snprintf+0xe5/0x140
[ 238.011314][ T6491] ? __free_pages+0x95/0x1a0
[ 238.016105][ T6491] ? vscnprintf+0x80/0x80
[ 238.020550][ T6491] gfs2_fill_super+0x120f/0x1f00
[ 238.025611][ T6491] ? gfs2_reconfigure+0xd30/0xd30
[ 238.031094][ T6491] ? sb_set_blocksize+0xa5/0xe0
[ 238.036243][ T6491] get_tree_bdev+0x3f1/0x610
[ 238.041066][ T6491] ? gfs2_reconfigure+0xd30/0xd30
[ 238.046113][ T6491] gfs2_get_tree+0x4d/0x1e0
[ 238.050818][ T6491] vfs_get_tree+0x88/0x270
[ 238.055648][ T6491] do_new_mount+0x24a/0xa40
[ 238.060497][ T6491] __se_sys_mount+0x2e3/0x3d0
[ 238.065488][ T6491] ? __x64_sys_mount+0xc0/0xc0
[ 238.070363][ T6491] ? lockdep_hardirqs_on+0x94/0x140
[ 238.075667][ T6491] ? __x64_sys_mount+0x1c/0xc0
[ 238.080722][ T6491] do_syscall_64+0x4c/0xa0
[ 238.087298][ T6491] ? clear_bhb_loop+0x30/0x80
[ 238.092105][ T6491] ? clear_bhb_loop+0x30/0x80
[ 238.096803][ T6491] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.102719][ T6491] RIP: 0033:0x7f58b132260a
[ 238.107428][ T6491] 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
[ 238.127495][ T6491] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.136107][ T6491] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 238.144099][ T6491] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
[ 238.152182][ T6491] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 238.160339][ T6491] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 238.168860][ T6491] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 238.177077][ T6491]
[ 238.181386][ T6491] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.194937][ T6491] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.210325][ T6501] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 238.215729][ T6505] loop2: detected capacity change from 0 to 32768
[ 238.217753][ T6501] CPU: 0 PID: 6501 Comm: syz.0.386 Not tainted syzkaller #0
[ 238.232219][ T6501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 238.242689][ T6501] Call Trace:
[ 238.245973][ T6501]
[ 238.248906][ T6501] dump_stack_lvl+0x188/0x250
[ 238.253680][ T6501] ? show_regs_print_info+0x20/0x20
[ 238.258891][ T6501] ? load_image+0x400/0x400
[ 238.263406][ T6501] sysfs_create_dir_ns+0x26a/0x290
[ 238.268521][ T6501] ? sysfs_warn_dup+0xa0/0xa0
[ 238.273295][ T6501] ? do_raw_spin_unlock+0x11d/0x230
[ 238.278673][ T6501] kobject_add_internal+0x6e0/0xd90
[ 238.283893][ T6501] kobject_init_and_add+0x128/0x190
[ 238.289192][ T6501] ? lockdep_softirqs_off+0x430/0x430
[ 238.294998][ T6501] ? kobject_add+0x230/0x230
[ 238.299695][ T6501] ? __init_swait_queue_head+0xa5/0x150
[ 238.305490][ T6501] gfs2_sys_fs_add+0x24f/0x4b0
[ 238.310382][ T6501] ? gfs2_recover_set+0x240/0x240
[ 238.315427][ T6501] ? snprintf+0xe5/0x140
[ 238.319772][ T6501] ? __free_pages+0x95/0x1a0
[ 238.324557][ T6501] ? vscnprintf+0x80/0x80
[ 238.328941][ T6501] gfs2_fill_super+0x120f/0x1f00
[ 238.333922][ T6501] ? gfs2_reconfigure+0xd30/0xd30
[ 238.338983][ T6501] ? sb_set_blocksize+0xa5/0xe0
[ 238.343940][ T6501] get_tree_bdev+0x3f1/0x610
[ 238.349157][ T6501] ? gfs2_reconfigure+0xd30/0xd30
[ 238.354823][ T6501] gfs2_get_tree+0x4d/0x1e0
[ 238.359755][ T6501] vfs_get_tree+0x88/0x270
[ 238.364327][ T6501] do_new_mount+0x24a/0xa40
[ 238.369597][ T6501] __se_sys_mount+0x2e3/0x3d0
[ 238.374731][ T6501] ? __x64_sys_mount+0xc0/0xc0
[ 238.380044][ T6501] ? lockdep_hardirqs_on+0x94/0x140
[ 238.385381][ T6501] ? __x64_sys_mount+0x1c/0xc0
[ 238.390442][ T6501] do_syscall_64+0x4c/0xa0
[ 238.395655][ T6501] ? clear_bhb_loop+0x30/0x80
[ 238.400441][ T6501] ? clear_bhb_loop+0x30/0x80
[ 238.405480][ T6501] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.411440][ T6501] RIP: 0033:0x7f44434eb60a
[ 238.415956][ T6501] 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
[ 238.436031][ T6501] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.444819][ T6501] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 238.453091][ T6501] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 238.461108][ T6501] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
[ 238.469095][ T6501] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 238.477180][ T6501] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
[ 238.485313][ T6501]
[ 238.489486][ T6501] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.503374][ T6501] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.530394][ T6505] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 238.537871][ T6505] CPU: 0 PID: 6505 Comm: syz.2.387 Not tainted syzkaller #0
[ 238.545355][ T6505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 238.555782][ T6505] Call Trace:
[ 238.559283][ T6505]
[ 238.562379][ T6505] dump_stack_lvl+0x188/0x250
[ 238.567435][ T6505] ? show_regs_print_info+0x20/0x20
[ 238.572757][ T6505] ? load_image+0x400/0x400
[ 238.577376][ T6505] sysfs_create_dir_ns+0x26a/0x290
[ 238.582502][ T6505] ? sysfs_warn_dup+0xa0/0xa0
[ 238.587366][ T6505] ? do_raw_spin_unlock+0x11d/0x230
[ 238.592669][ T6505] kobject_add_internal+0x6e0/0xd90
[ 238.598157][ T6505] kobject_init_and_add+0x128/0x190
[ 238.603469][ T6505] ? lockdep_softirqs_off+0x430/0x430
[ 238.609069][ T6505] ? kobject_add+0x230/0x230
[ 238.613829][ T6505] ? __init_swait_queue_head+0xa5/0x150
[ 238.619479][ T6505] gfs2_sys_fs_add+0x24f/0x4b0
[ 238.624274][ T6505] ? gfs2_recover_set+0x240/0x240
[ 238.629405][ T6505] ? snprintf+0xe5/0x140
[ 238.633851][ T6505] ? __free_pages+0x95/0x1a0
[ 238.638536][ T6505] ? vscnprintf+0x80/0x80
[ 238.642965][ T6505] gfs2_fill_super+0x120f/0x1f00
[ 238.643909][ T6508] loop3: detected capacity change from 0 to 32768
[ 238.648201][ T6505] ? gfs2_reconfigure+0xd30/0xd30
[ 238.648239][ T6505] ? sb_set_blocksize+0xa5/0xe0
[ 238.665000][ T6505] get_tree_bdev+0x3f1/0x610
[ 238.669698][ T6505] ? gfs2_reconfigure+0xd30/0xd30
[ 238.674946][ T6505] gfs2_get_tree+0x4d/0x1e0
[ 238.679559][ T6505] vfs_get_tree+0x88/0x270
[ 238.683995][ T6505] do_new_mount+0x24a/0xa40
[ 238.688634][ T6505] __se_sys_mount+0x2e3/0x3d0
[ 238.693331][ T6505] ? __x64_sys_mount+0xc0/0xc0
[ 238.698118][ T6505] ? lockdep_hardirqs_on+0x94/0x140
[ 238.703521][ T6505] ? __x64_sys_mount+0x1c/0xc0
[ 238.708395][ T6505] do_syscall_64+0x4c/0xa0
[ 238.712833][ T6505] ? clear_bhb_loop+0x30/0x80
[ 238.717545][ T6505] ? clear_bhb_loop+0x30/0x80
[ 238.722503][ T6505] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.728672][ T6505] RIP: 0033:0x7f95167b260a
[ 238.733194][ T6505] 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
[ 238.753178][ T6505] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.761930][ T6505] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 238.770072][ T6505] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
[ 238.778361][ T6505] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 238.786789][ T6505] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 238.795005][ T6505] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
[ 238.803444][ T6505]
[ 238.806685][ T6505] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.820015][ T6505] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.958455][ T6508] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 238.966045][ T6508] CPU: 1 PID: 6508 Comm: syz.3.388 Not tainted syzkaller #0
[ 238.973539][ T6508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 238.983691][ T6508] Call Trace:
[ 238.987061][ T6508]
[ 238.990000][ T6508] dump_stack_lvl+0x188/0x250
[ 238.994683][ T6508] ? show_regs_print_info+0x20/0x20
[ 238.999890][ T6508] ? load_image+0x400/0x400
[ 239.004412][ T6508] sysfs_create_dir_ns+0x26a/0x290
[ 239.009717][ T6508] ? sysfs_warn_dup+0xa0/0xa0
[ 239.014399][ T6508] ? do_raw_spin_unlock+0x11d/0x230
[ 239.019719][ T6508] kobject_add_internal+0x6e0/0xd90
[ 239.025033][ T6508] kobject_init_and_add+0x128/0x190
[ 239.030446][ T6508] ? lockdep_softirqs_off+0x430/0x430
[ 239.036394][ T6508] ? kobject_add+0x230/0x230
[ 239.041109][ T6508] ? __init_swait_queue_head+0xa5/0x150
[ 239.046752][ T6508] gfs2_sys_fs_add+0x24f/0x4b0
[ 239.051781][ T6508] ? gfs2_recover_set+0x240/0x240
[ 239.057076][ T6508] ? snprintf+0xe5/0x140
[ 239.061682][ T6508] ? __free_pages+0x95/0x1a0
[ 239.066453][ T6508] ? vscnprintf+0x80/0x80
[ 239.070869][ T6508] gfs2_fill_super+0x120f/0x1f00
[ 239.075925][ T6508] ? gfs2_reconfigure+0xd30/0xd30
[ 239.081069][ T6508] ? sb_set_blocksize+0xa5/0xe0
[ 239.085924][ T6508] get_tree_bdev+0x3f1/0x610
[ 239.090621][ T6508] ? gfs2_reconfigure+0xd30/0xd30
[ 239.096382][ T6508] gfs2_get_tree+0x4d/0x1e0
[ 239.101098][ T6508] vfs_get_tree+0x88/0x270
[ 239.105550][ T6508] do_new_mount+0x24a/0xa40
[ 239.110047][ T6508] __se_sys_mount+0x2e3/0x3d0
[ 239.114754][ T6508] ? __x64_sys_mount+0xc0/0xc0
[ 239.119585][ T6508] ? lockdep_hardirqs_on+0x94/0x140
[ 239.124859][ T6508] ? __x64_sys_mount+0x1c/0xc0
[ 239.129726][ T6508] do_syscall_64+0x4c/0xa0
[ 239.134304][ T6508] ? clear_bhb_loop+0x30/0x80
[ 239.139140][ T6508] ? clear_bhb_loop+0x30/0x80
[ 239.143994][ T6508] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 239.150158][ T6508] RIP: 0033:0x7f94881c160a
[ 239.154663][ T6508] 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
[ 239.174521][ T6508] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 239.183101][ T6508] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 239.191323][ T6508] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 239.199548][ T6508] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 239.207521][ T6508] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 239.215659][ T6508] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 239.223802][ T6508]
[ 239.227951][ T6508] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 239.234234][ T6509] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 239.241353][ T6508] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 239.255791][ T6509] CPU: 0 PID: 6509 Comm: syz.4.389 Not tainted syzkaller #0
[ 239.263257][ T6509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 239.273517][ T6509] Call Trace:
[ 239.277091][ T6509]
[ 239.280317][ T6509] dump_stack_lvl+0x188/0x250
[ 239.285202][ T6509] ? show_regs_print_info+0x20/0x20
[ 239.290422][ T6509] ? load_image+0x400/0x400
[ 239.294958][ T6509] sysfs_create_dir_ns+0x26a/0x290
[ 239.300271][ T6509] ? sysfs_warn_dup+0xa0/0xa0
[ 239.304976][ T6509] ? do_raw_spin_unlock+0x11d/0x230
[ 239.310331][ T6509] kobject_add_internal+0x6e0/0xd90
[ 239.315552][ T6509] kobject_init_and_add+0x128/0x190
[ 239.320946][ T6509] ? lockdep_softirqs_off+0x430/0x430
[ 239.326554][ T6509] ? kobject_add+0x230/0x230
[ 239.331262][ T6509] ? __init_swait_queue_head+0xa5/0x150
[ 239.336829][ T6509] gfs2_sys_fs_add+0x24f/0x4b0
[ 239.341608][ T6509] ? gfs2_recover_set+0x240/0x240
[ 239.346719][ T6509] ? snprintf+0xe5/0x140
[ 239.351143][ T6509] ? __free_pages+0x95/0x1a0
[ 239.355912][ T6509] ? vscnprintf+0x80/0x80
[ 239.360446][ T6509] gfs2_fill_super+0x120f/0x1f00
[ 239.365504][ T6509] ? gfs2_reconfigure+0xd30/0xd30
[ 239.370688][ T6509] ? sb_set_blocksize+0xa5/0xe0
[ 239.375821][ T6509] get_tree_bdev+0x3f1/0x610
[ 239.380455][ T6509] ? gfs2_reconfigure+0xd30/0xd30
[ 239.385595][ T6509] gfs2_get_tree+0x4d/0x1e0
[ 239.390125][ T6509] vfs_get_tree+0x88/0x270
[ 239.394563][ T6509] do_new_mount+0x24a/0xa40
[ 239.399091][ T6509] __se_sys_mount+0x2e3/0x3d0
[ 239.403792][ T6509] ? __x64_sys_mount+0xc0/0xc0
[ 239.408580][ T6509] ? lockdep_hardirqs_on+0x94/0x140
[ 239.413790][ T6509] ? __x64_sys_mount+0x1c/0xc0
[ 239.418574][ T6509] do_syscall_64+0x4c/0xa0
[ 239.423102][ T6509] ? clear_bhb_loop+0x30/0x80
[ 239.427954][ T6509] ? clear_bhb_loop+0x30/0x80
[ 239.432658][ T6509] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 239.438827][ T6509] RIP: 0033:0x7fded93a760a
[ 239.443363][ T6509] 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
[ 239.463164][ T6509] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 239.471699][ T6509] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 239.479784][ T6509] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 239.488570][ T6509] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 239.496657][ T6509] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
2026/03/31 16:50:23 executed programs: 384
[ 239.504730][ T6509] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 239.512735][ T6509]
[ 239.516615][ T6509] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 239.531452][ T6509] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 239.951684][ T6519] set_capacity_and_notify: 1 callbacks suppressed
[ 239.951700][ T6519] loop2: detected capacity change from 0 to 32768
[ 240.135010][ T6521] loop3: detected capacity change from 0 to 32768
[ 240.189018][ T6511] loop0: detected capacity change from 0 to 32768
[ 240.210984][ T6519] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.219617][ T6519] CPU: 1 PID: 6519 Comm: syz.2.392 Not tainted syzkaller #0
[ 240.227132][ T6519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 240.237380][ T6519] Call Trace:
[ 240.240766][ T6519]
[ 240.243707][ T6519] dump_stack_lvl+0x188/0x250
[ 240.248643][ T6519] ? show_regs_print_info+0x20/0x20
[ 240.254228][ T6519] ? load_image+0x400/0x400
[ 240.258762][ T6519] sysfs_create_dir_ns+0x26a/0x290
[ 240.263905][ T6519] ? sysfs_warn_dup+0xa0/0xa0
[ 240.268949][ T6519] ? do_raw_spin_unlock+0x11d/0x230
[ 240.274185][ T6519] kobject_add_internal+0x6e0/0xd90
[ 240.279417][ T6519] kobject_init_and_add+0x128/0x190
[ 240.284809][ T6519] ? lockdep_softirqs_off+0x430/0x430
[ 240.290234][ T6519] ? kobject_add+0x230/0x230
[ 240.295337][ T6519] ? __init_swait_queue_head+0xa5/0x150
[ 240.301175][ T6519] gfs2_sys_fs_add+0x24f/0x4b0
[ 240.306141][ T6519] ? gfs2_recover_set+0x240/0x240
[ 240.311366][ T6519] ? snprintf+0xe5/0x140
[ 240.315707][ T6519] ? __free_pages+0x95/0x1a0
[ 240.320759][ T6519] ? vscnprintf+0x80/0x80
[ 240.325394][ T6519] gfs2_fill_super+0x120f/0x1f00
[ 240.330639][ T6519] ? gfs2_reconfigure+0xd30/0xd30
[ 240.335759][ T6519] ? sb_set_blocksize+0xa5/0xe0
[ 240.340637][ T6519] get_tree_bdev+0x3f1/0x610
[ 240.345331][ T6519] ? gfs2_reconfigure+0xd30/0xd30
[ 240.350626][ T6519] gfs2_get_tree+0x4d/0x1e0
[ 240.355332][ T6519] vfs_get_tree+0x88/0x270
[ 240.360124][ T6519] do_new_mount+0x24a/0xa40
[ 240.364657][ T6519] __se_sys_mount+0x2e3/0x3d0
[ 240.369795][ T6519] ? __x64_sys_mount+0xc0/0xc0
[ 240.374870][ T6519] ? lockdep_hardirqs_on+0x94/0x140
[ 240.377684][ T6523] loop4: detected capacity change from 0 to 32768
[ 240.380088][ T6519] ? __x64_sys_mount+0x1c/0xc0
[ 240.380112][ T6519] do_syscall_64+0x4c/0xa0
[ 240.380129][ T6519] ? clear_bhb_loop+0x30/0x80
[ 240.380145][ T6519] ? clear_bhb_loop+0x30/0x80
[ 240.405653][ T6519] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 240.412713][ T6519] RIP: 0033:0x7f95167b260a
[ 240.417729][ T6519] 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
[ 240.437732][ T6519] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.446486][ T6519] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 240.455197][ T6519] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
[ 240.463463][ T6519] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 240.471557][ T6519] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 240.479820][ T6519] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
[ 240.488029][ T6519]
[ 240.497050][ T6519] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.511491][ T6519] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 240.536603][ T6521] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.544315][ T6521] CPU: 1 PID: 6521 Comm: syz.3.393 Not tainted syzkaller #0
[ 240.552310][ T6521] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 240.559118][ T6523] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.563615][ T6521] Call Trace:
[ 240.563633][ T6521]
[ 240.563640][ T6521] dump_stack_lvl+0x188/0x250
[ 240.563665][ T6521] ? show_regs_print_info+0x20/0x20
[ 240.563686][ T6521] ? load_image+0x400/0x400
[ 240.563711][ T6521] sysfs_create_dir_ns+0x26a/0x290
[ 240.597997][ T6521] ? sysfs_warn_dup+0xa0/0xa0
[ 240.602778][ T6521] ? do_raw_spin_unlock+0x11d/0x230
[ 240.607971][ T6521] kobject_add_internal+0x6e0/0xd90
[ 240.613702][ T6521] kobject_init_and_add+0x128/0x190
[ 240.618904][ T6521] ? lockdep_softirqs_off+0x430/0x430
[ 240.624557][ T6521] ? kobject_add+0x230/0x230
[ 240.629232][ T6521] ? __init_swait_queue_head+0xa5/0x150
[ 240.635075][ T6521] gfs2_sys_fs_add+0x24f/0x4b0
[ 240.639931][ T6521] ? gfs2_recover_set+0x240/0x240
[ 240.645040][ T6521] ? snprintf+0xe5/0x140
[ 240.649282][ T6521] ? __free_pages+0x95/0x1a0
[ 240.653872][ T6521] ? vscnprintf+0x80/0x80
[ 240.658198][ T6521] gfs2_fill_super+0x120f/0x1f00
[ 240.663401][ T6521] ? gfs2_reconfigure+0xd30/0xd30
[ 240.668454][ T6521] ? sb_set_blocksize+0xa5/0xe0
[ 240.673394][ T6521] get_tree_bdev+0x3f1/0x610
[ 240.678162][ T6521] ? gfs2_reconfigure+0xd30/0xd30
[ 240.683187][ T6521] gfs2_get_tree+0x4d/0x1e0
[ 240.687769][ T6521] vfs_get_tree+0x88/0x270
[ 240.692272][ T6521] do_new_mount+0x24a/0xa40
[ 240.696863][ T6521] __se_sys_mount+0x2e3/0x3d0
[ 240.701769][ T6521] ? __x64_sys_mount+0xc0/0xc0
[ 240.706874][ T6521] ? lockdep_hardirqs_on+0x94/0x140
[ 240.712163][ T6521] ? __x64_sys_mount+0x1c/0xc0
[ 240.717009][ T6521] do_syscall_64+0x4c/0xa0
[ 240.721595][ T6521] ? clear_bhb_loop+0x30/0x80
[ 240.726265][ T6521] ? clear_bhb_loop+0x30/0x80
[ 240.731031][ T6521] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 240.737196][ T6521] RIP: 0033:0x7f94881c160a
[ 240.741690][ T6521] 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
[ 240.761472][ T6521] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.769972][ T6521] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 240.778036][ T6521] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 240.786201][ T6521] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 240.794357][ T6521] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 240.802329][ T6521] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 240.811204][ T6521]
[ 240.814213][ T6523] CPU: 0 PID: 6523 Comm: syz.4.394 Not tainted syzkaller #0
[ 240.815272][ T6521] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.821603][ T6523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 240.821619][ T6523] Call Trace:
[ 240.821627][ T6523]
[ 240.821634][ T6523] dump_stack_lvl+0x188/0x250
[ 240.821659][ T6523] ? show_regs_print_info+0x20/0x20
[ 240.835855][ T6521] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 240.845456][ T6523] ? load_image+0x400/0x400
[ 240.845489][ T6523] sysfs_create_dir_ns+0x26a/0x290
[ 240.849840][ T6511] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.851888][ T6523] ? sysfs_warn_dup+0xa0/0xa0
[ 240.892289][ T6523] ? do_raw_spin_unlock+0x11d/0x230
[ 240.898044][ T6523] kobject_add_internal+0x6e0/0xd90
[ 240.903514][ T6523] kobject_init_and_add+0x128/0x190
[ 240.908891][ T6523] ? lockdep_softirqs_off+0x430/0x430
[ 240.914365][ T6523] ? kobject_add+0x230/0x230
[ 240.919099][ T6523] ? __init_swait_queue_head+0xa5/0x150
[ 240.924753][ T6523] gfs2_sys_fs_add+0x24f/0x4b0
[ 240.929912][ T6523] ? gfs2_recover_set+0x240/0x240
[ 240.934957][ T6523] ? snprintf+0xe5/0x140
[ 240.939335][ T6523] ? __free_pages+0x95/0x1a0
[ 240.944217][ T6523] ? vscnprintf+0x80/0x80
[ 240.948571][ T6523] gfs2_fill_super+0x120f/0x1f00
[ 240.953539][ T6523] ? gfs2_reconfigure+0xd30/0xd30
[ 240.958685][ T6523] ? sb_set_blocksize+0xa5/0xe0
[ 240.963869][ T6523] get_tree_bdev+0x3f1/0x610
[ 240.968658][ T6523] ? gfs2_reconfigure+0xd30/0xd30
[ 240.973880][ T6523] gfs2_get_tree+0x4d/0x1e0
[ 240.978416][ T6523] vfs_get_tree+0x88/0x270
[ 240.982945][ T6523] do_new_mount+0x24a/0xa40
[ 240.987567][ T6523] __se_sys_mount+0x2e3/0x3d0
[ 240.992267][ T6523] ? __x64_sys_mount+0xc0/0xc0
[ 240.997150][ T6523] ? lockdep_hardirqs_on+0x94/0x140
[ 241.002897][ T6523] ? __x64_sys_mount+0x1c/0xc0
[ 241.007685][ T6523] do_syscall_64+0x4c/0xa0
[ 241.012335][ T6523] ? clear_bhb_loop+0x30/0x80
[ 241.017212][ T6523] ? clear_bhb_loop+0x30/0x80
[ 241.022087][ T6523] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 241.028352][ T6523] RIP: 0033:0x7fded93a760a
[ 241.032865][ T6523] 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
[ 241.052775][ T6523] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 241.061468][ T6523] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 241.070147][ T6523] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 241.079190][ T6523] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 241.087541][ T6523] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 241.095703][ T6523] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 241.104232][ T6523]
[ 241.107427][ T6523] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 241.108222][ T6511] CPU: 1 PID: 6511 Comm: syz.0.390 Not tainted syzkaller #0
[ 241.120747][ T6523] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 241.127984][ T6511] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 241.127997][ T6511] Call Trace:
[ 241.128005][ T6511]
[ 241.128013][ T6511] dump_stack_lvl+0x188/0x250
[ 241.156185][ T6511] ? show_regs_print_info+0x20/0x20
[ 241.161663][ T6511] ? load_image+0x400/0x400
[ 241.166548][ T6511] sysfs_create_dir_ns+0x26a/0x290
[ 241.172262][ T6511] ? sysfs_warn_dup+0xa0/0xa0
[ 241.177497][ T6511] ? do_raw_spin_unlock+0x11d/0x230
[ 241.183249][ T6511] kobject_add_internal+0x6e0/0xd90
[ 241.188897][ T6511] kobject_init_and_add+0x128/0x190
[ 241.194468][ T6511] ? lockdep_softirqs_off+0x430/0x430
[ 241.199954][ T6511] ? kobject_add+0x230/0x230
[ 241.204840][ T6511] ? __init_swait_queue_head+0xa5/0x150
[ 241.210939][ T6511] gfs2_sys_fs_add+0x24f/0x4b0
[ 241.215860][ T6511] ? gfs2_recover_set+0x240/0x240
[ 241.221372][ T6511] ? snprintf+0xe5/0x140
[ 241.226164][ T6511] ? __free_pages+0x95/0x1a0
[ 241.231068][ T6511] ? vscnprintf+0x80/0x80
[ 241.235580][ T6511] gfs2_fill_super+0x120f/0x1f00
[ 241.240554][ T6511] ? gfs2_reconfigure+0xd30/0xd30
[ 241.245952][ T6511] ? sb_set_blocksize+0xa5/0xe0
[ 241.251269][ T6511] get_tree_bdev+0x3f1/0x610
[ 241.255988][ T6511] ? gfs2_reconfigure+0xd30/0xd30
[ 241.261221][ T6511] gfs2_get_tree+0x4d/0x1e0
[ 241.265936][ T6511] vfs_get_tree+0x88/0x270
[ 241.270468][ T6511] do_new_mount+0x24a/0xa40
[ 241.275295][ T6511] __se_sys_mount+0x2e3/0x3d0
[ 241.280086][ T6511] ? __x64_sys_mount+0xc0/0xc0
[ 241.285077][ T6511] ? lockdep_hardirqs_on+0x94/0x140
[ 241.290386][ T6511] ? __x64_sys_mount+0x1c/0xc0
[ 241.295164][ T6511] do_syscall_64+0x4c/0xa0
[ 241.299589][ T6511] ? clear_bhb_loop+0x30/0x80
[ 241.304354][ T6511] ? clear_bhb_loop+0x30/0x80
[ 241.309129][ T6511] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 241.315182][ T6511] RIP: 0033:0x7f44434eb60a
[ 241.319623][ T6511] 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
[ 241.340104][ T6511] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 241.348885][ T6511] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 241.357178][ T6511] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 241.365176][ T6511] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
[ 241.373415][ T6511] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 241.381645][ T6511] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
[ 241.390011][ T6511]
[ 241.643818][ T6517] loop5: detected capacity change from 0 to 32768
[ 241.731116][ T6511] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 241.768390][ T6511] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 241.796603][ T6517] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 241.845297][ T6517] CPU: 1 PID: 6517 Comm: syz.5.391 Not tainted syzkaller #0
[ 241.852812][ T6517] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 241.863092][ T6517] Call Trace:
[ 241.866568][ T6517]
[ 241.869519][ T6517] dump_stack_lvl+0x188/0x250
[ 241.874623][ T6517] ? show_regs_print_info+0x20/0x20
[ 241.879968][ T6517] ? load_image+0x400/0x400
[ 241.884607][ T6517] sysfs_create_dir_ns+0x26a/0x290
[ 241.889869][ T6517] ? sysfs_warn_dup+0xa0/0xa0
[ 241.894654][ T6517] ? do_raw_spin_unlock+0x11d/0x230
[ 241.899961][ T6517] kobject_add_internal+0x6e0/0xd90
[ 241.905273][ T6517] kobject_init_and_add+0x128/0x190
[ 241.910711][ T6517] ? lockdep_softirqs_off+0x430/0x430
[ 241.916281][ T6517] ? kobject_add+0x230/0x230
[ 241.921216][ T6517] ? __init_swait_queue_head+0xa5/0x150
[ 241.926967][ T6517] gfs2_sys_fs_add+0x24f/0x4b0
[ 241.931842][ T6517] ? gfs2_recover_set+0x240/0x240
[ 241.936896][ T6517] ? snprintf+0xe5/0x140
[ 241.941330][ T6517] ? __free_pages+0x95/0x1a0
[ 241.946110][ T6517] ? vscnprintf+0x80/0x80
[ 241.950536][ T6517] gfs2_fill_super+0x120f/0x1f00
[ 241.955534][ T6517] ? gfs2_reconfigure+0xd30/0xd30
[ 241.960668][ T6517] ? sb_set_blocksize+0xa5/0xe0
[ 241.965654][ T6517] get_tree_bdev+0x3f1/0x610
[ 241.970463][ T6517] ? gfs2_reconfigure+0xd30/0xd30
[ 241.975838][ T6517] gfs2_get_tree+0x4d/0x1e0
[ 241.980366][ T6517] vfs_get_tree+0x88/0x270
[ 241.984802][ T6517] do_new_mount+0x24a/0xa40
[ 241.989394][ T6517] __se_sys_mount+0x2e3/0x3d0
[ 241.994088][ T6517] ? __x64_sys_mount+0xc0/0xc0
[ 241.998987][ T6517] ? lockdep_hardirqs_on+0x94/0x140
[ 242.004285][ T6517] ? __x64_sys_mount+0x1c/0xc0
[ 242.009080][ T6517] do_syscall_64+0x4c/0xa0
[ 242.013520][ T6517] ? clear_bhb_loop+0x30/0x80
[ 242.018219][ T6517] ? clear_bhb_loop+0x30/0x80
[ 242.022917][ T6517] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 242.028824][ T6517] RIP: 0033:0x7f58b132260a
[ 242.033263][ T6517] 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
[ 242.053139][ T6517] RSP: 002b:00007f58b0963e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 242.061586][ T6517] RAX: ffffffffffffffda RBX: 00007f58b0963ee0 RCX: 00007f58b132260a
[ 242.070267][ T6517] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0963ea0
[ 242.078422][ T6517] RBP: 0000200000000400 R08: 00007f58b0963ee0 R09: 0000000000000000
[ 242.086666][ T6517] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 242.094657][ T6517] R13: 00007f58b0963ea0 R14: 00000000000125ed R15: 0000200000000640
[ 242.103064][ T6517]
[ 242.126708][ T6533] loop0: detected capacity change from 0 to 32768
[ 242.169505][ T6517] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 242.183330][ T6533] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 242.191766][ T6533] CPU: 0 PID: 6533 Comm: syz.0.398 Not tainted syzkaller #0
[ 242.199566][ T6533] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 242.209909][ T6533] Call Trace:
[ 242.213300][ T6533]
[ 242.216254][ T6533] dump_stack_lvl+0x188/0x250
[ 242.221042][ T6533] ? show_regs_print_info+0x20/0x20
[ 242.226355][ T6533] ? load_image+0x400/0x400
[ 242.230883][ T6533] sysfs_create_dir_ns+0x26a/0x290
[ 242.236735][ T6533] ? sysfs_warn_dup+0xa0/0xa0
[ 242.241536][ T6533] ? do_raw_spin_unlock+0x11d/0x230
[ 242.246862][ T6533] kobject_add_internal+0x6e0/0xd90
[ 242.252076][ T6533] kobject_init_and_add+0x128/0x190
[ 242.257433][ T6533] ? lockdep_softirqs_off+0x430/0x430
[ 242.262832][ T6533] ? kobject_add+0x230/0x230
[ 242.267560][ T6533] ? __init_swait_queue_head+0xa5/0x150
[ 242.273206][ T6533] gfs2_sys_fs_add+0x24f/0x4b0
[ 242.278036][ T6533] ? gfs2_recover_set+0x240/0x240
[ 242.283069][ T6533] ? snprintf+0xe5/0x140
[ 242.287416][ T6533] ? __free_pages+0x95/0x1a0
[ 242.292195][ T6533] ? vscnprintf+0x80/0x80
[ 242.296554][ T6533] gfs2_fill_super+0x120f/0x1f00
[ 242.301716][ T6533] ? gfs2_reconfigure+0xd30/0xd30
[ 242.306781][ T6533] ? sb_set_blocksize+0xa5/0xe0
[ 242.311650][ T6533] get_tree_bdev+0x3f1/0x610
[ 242.316257][ T6533] ? gfs2_reconfigure+0xd30/0xd30
[ 242.321473][ T6533] gfs2_get_tree+0x4d/0x1e0
[ 242.326254][ T6533] vfs_get_tree+0x88/0x270
[ 242.330693][ T6533] do_new_mount+0x24a/0xa40
[ 242.335424][ T6533] __se_sys_mount+0x2e3/0x3d0
[ 242.340837][ T6533] ? __x64_sys_mount+0xc0/0xc0
[ 242.346176][ T6533] ? lockdep_hardirqs_on+0x94/0x140
[ 242.351949][ T6533] ? __x64_sys_mount+0x1c/0xc0
[ 242.356911][ T6533] do_syscall_64+0x4c/0xa0
[ 242.361614][ T6533] ? clear_bhb_loop+0x30/0x80
[ 242.366465][ T6533] ? clear_bhb_loop+0x30/0x80
[ 242.371425][ T6533] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 242.377612][ T6533] RIP: 0033:0x7f44434eb60a
[ 242.382832][ T6533] 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
[ 242.403166][ T6533] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 242.412323][ T6533] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 242.420579][ T6533] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 242.429226][ T6533] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
[ 242.437739][ T6533] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 242.446622][ T6533] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
[ 242.455003][ T6533]
[ 242.458866][ T6533] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 242.473828][ T6533] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 242.502821][ T6531] loop3: detected capacity change from 0 to 32768
[ 242.548365][ T6517] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 242.579364][ T6531] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 242.587051][ T6531] CPU: 1 PID: 6531 Comm: syz.3.396 Not tainted syzkaller #0
[ 242.594625][ T6531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 242.605050][ T6531] Call Trace:
[ 242.608429][ T6531]
[ 242.611558][ T6531] dump_stack_lvl+0x188/0x250
[ 242.616447][ T6531] ? show_regs_print_info+0x20/0x20
[ 242.621755][ T6531] ? load_image+0x400/0x400
[ 242.626495][ T6531] sysfs_create_dir_ns+0x26a/0x290
[ 242.631791][ T6531] ? sysfs_warn_dup+0xa0/0xa0
[ 242.636596][ T6531] ? do_raw_spin_unlock+0x11d/0x230
[ 242.641904][ T6531] kobject_add_internal+0x6e0/0xd90
[ 242.647306][ T6531] kobject_init_and_add+0x128/0x190
[ 242.652686][ T6531] ? lockdep_softirqs_off+0x430/0x430
[ 242.658608][ T6531] ? kobject_add+0x230/0x230
[ 242.663503][ T6531] ? __init_swait_queue_head+0xa5/0x150
[ 242.669272][ T6531] gfs2_sys_fs_add+0x24f/0x4b0
[ 242.674187][ T6531] ? gfs2_recover_set+0x240/0x240
[ 242.679319][ T6531] ? snprintf+0xe5/0x140
[ 242.683662][ T6531] ? __free_pages+0x95/0x1a0
[ 242.688304][ T6531] ? vscnprintf+0x80/0x80
[ 242.693050][ T6531] gfs2_fill_super+0x120f/0x1f00
[ 242.698197][ T6531] ? gfs2_reconfigure+0xd30/0xd30
[ 242.703652][ T6531] ? sb_set_blocksize+0xa5/0xe0
[ 242.708728][ T6531] get_tree_bdev+0x3f1/0x610
[ 242.713545][ T6531] ? gfs2_reconfigure+0xd30/0xd30
[ 242.718677][ T6531] gfs2_get_tree+0x4d/0x1e0
[ 242.723481][ T6531] vfs_get_tree+0x88/0x270
[ 242.727939][ T6531] do_new_mount+0x24a/0xa40
[ 242.732471][ T6531] __se_sys_mount+0x2e3/0x3d0
[ 242.737589][ T6531] ? __x64_sys_mount+0xc0/0xc0
[ 242.742378][ T6531] ? lockdep_hardirqs_on+0x94/0x140
[ 242.747870][ T6531] ? __x64_sys_mount+0x1c/0xc0
[ 242.753257][ T6531] do_syscall_64+0x4c/0xa0
[ 242.757846][ T6531] ? clear_bhb_loop+0x30/0x80
[ 242.762710][ T6531] ? clear_bhb_loop+0x30/0x80
[ 242.767498][ T6531] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 242.773839][ T6531] RIP: 0033:0x7f94881c160a
[ 242.778271][ T6531] 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
[ 242.798668][ T6531] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 242.807377][ T6531] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 242.815538][ T6531] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 242.824405][ T6531] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 242.833041][ T6531] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 242.841286][ T6531] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 242.849456][ T6531]
[ 242.854221][ T6531] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 242.868411][ T6531] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 243.303801][ T6528] loop2: detected capacity change from 0 to 32768
[ 243.378343][ T6528] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.399583][ T6537] loop5: detected capacity change from 0 to 32768
[ 243.471345][ T6537] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.479720][ T6537] CPU: 0 PID: 6537 Comm: syz.5.401 Not tainted syzkaller #0
[ 243.487023][ T6537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 243.489759][ T6542] loop3: detected capacity change from 0 to 32768
[ 243.497473][ T6537] Call Trace:
[ 243.497485][ T6537]
[ 243.497493][ T6537] dump_stack_lvl+0x188/0x250
[ 243.497517][ T6537] ? show_regs_print_info+0x20/0x20
[ 243.497537][ T6537] ? load_image+0x400/0x400
[ 243.497563][ T6537] sysfs_create_dir_ns+0x26a/0x290
[ 243.497583][ T6537] ? sysfs_warn_dup+0xa0/0xa0
[ 243.497602][ T6537] ? do_raw_spin_unlock+0x11d/0x230
[ 243.497625][ T6537] kobject_add_internal+0x6e0/0xd90
[ 243.497652][ T6537] kobject_init_and_add+0x128/0x190
[ 243.497670][ T6537] ? lockdep_softirqs_off+0x430/0x430
[ 243.497694][ T6537] ? kobject_add+0x230/0x230
[ 243.497724][ T6537] ? __init_swait_queue_head+0xa5/0x150
[ 243.497749][ T6537] gfs2_sys_fs_add+0x24f/0x4b0
[ 243.497771][ T6537] ? gfs2_recover_set+0x240/0x240
[ 243.497789][ T6537] ? snprintf+0xe5/0x140
[ 243.497805][ T6537] ? __free_pages+0x95/0x1a0
[ 243.497828][ T6537] ? vscnprintf+0x80/0x80
[ 243.497856][ T6537] gfs2_fill_super+0x120f/0x1f00
[ 243.497889][ T6537] ? gfs2_reconfigure+0xd30/0xd30
[ 243.497925][ T6537] ? sb_set_blocksize+0xa5/0xe0
[ 243.497945][ T6537] get_tree_bdev+0x3f1/0x610
[ 243.497966][ T6537] ? gfs2_reconfigure+0xd30/0xd30
[ 243.497986][ T6537] gfs2_get_tree+0x4d/0x1e0
[ 243.498005][ T6537] vfs_get_tree+0x88/0x270
[ 243.498023][ T6537] do_new_mount+0x24a/0xa40
[ 243.498049][ T6537] __se_sys_mount+0x2e3/0x3d0
[ 243.498072][ T6537] ? __x64_sys_mount+0xc0/0xc0
[ 243.498094][ T6537] ? lockdep_hardirqs_on+0x94/0x140
[ 243.498110][ T6537] ? __x64_sys_mount+0x1c/0xc0
[ 243.498127][ T6537] do_syscall_64+0x4c/0xa0
[ 243.498140][ T6537] ? clear_bhb_loop+0x30/0x80
[ 243.498162][ T6537] ? clear_bhb_loop+0x30/0x80
[ 243.498180][ T6537] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 243.498198][ T6537] RIP: 0033:0x7f58b132260a
[ 243.498217][ T6537] 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
[ 243.498231][ T6537] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 243.498253][ T6537] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 243.498266][ T6537] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
[ 243.498278][ T6537] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 243.732661][ T6537] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 243.740934][ T6537] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 243.748954][ T6537]
[ 243.753001][ T6537] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 243.767450][ T6537] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 243.780629][ T6542] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.781087][ T6528] CPU: 0 PID: 6528 Comm: syz.2.395 Not tainted syzkaller #0
[ 243.795699][ T6528] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 243.806012][ T6528] Call Trace:
[ 243.809465][ T6528]
[ 243.812656][ T6528] dump_stack_lvl+0x188/0x250
[ 243.818389][ T6528] ? show_regs_print_info+0x20/0x20
[ 243.823766][ T6528] ? load_image+0x400/0x400
[ 243.828274][ T6528] sysfs_create_dir_ns+0x26a/0x290
[ 243.833381][ T6528] ? sysfs_warn_dup+0xa0/0xa0
[ 243.838166][ T6528] ? do_raw_spin_unlock+0x11d/0x230
[ 243.843548][ T6528] kobject_add_internal+0x6e0/0xd90
[ 243.849051][ T6528] kobject_init_and_add+0x128/0x190
[ 243.854415][ T6528] ? lockdep_softirqs_off+0x430/0x430
[ 243.860277][ T6528] ? kobject_add+0x230/0x230
[ 243.864957][ T6528] ? __init_swait_queue_head+0xa5/0x150
[ 243.870591][ T6528] gfs2_sys_fs_add+0x24f/0x4b0
[ 243.875476][ T6528] ? gfs2_recover_set+0x240/0x240
[ 243.880666][ T6528] ? snprintf+0xe5/0x140
[ 243.884988][ T6528] ? __free_pages+0x95/0x1a0
[ 243.889600][ T6528] ? vscnprintf+0x80/0x80
[ 243.894067][ T6528] gfs2_fill_super+0x120f/0x1f00
[ 243.899233][ T6528] ? gfs2_reconfigure+0xd30/0xd30
[ 243.904491][ T6528] ? sb_set_blocksize+0xa5/0xe0
[ 243.909364][ T6528] get_tree_bdev+0x3f1/0x610
[ 243.914059][ T6528] ? gfs2_reconfigure+0xd30/0xd30
[ 243.919433][ T6528] gfs2_get_tree+0x4d/0x1e0
[ 243.924110][ T6528] vfs_get_tree+0x88/0x270
[ 243.928613][ T6528] do_new_mount+0x24a/0xa40
[ 243.933206][ T6528] __se_sys_mount+0x2e3/0x3d0
[ 243.937982][ T6528] ? __x64_sys_mount+0xc0/0xc0
[ 243.942918][ T6528] ? lockdep_hardirqs_on+0x94/0x140
[ 243.948230][ T6528] ? __x64_sys_mount+0x1c/0xc0
[ 243.953173][ T6528] do_syscall_64+0x4c/0xa0
[ 243.957595][ T6528] ? clear_bhb_loop+0x30/0x80
[ 243.962499][ T6528] ? clear_bhb_loop+0x30/0x80
[ 243.967265][ T6528] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 243.973236][ T6528] RIP: 0033:0x7f95167b260a
[ 243.977819][ T6528] 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
[ 243.997976][ T6528] RSP: 002b:00007f9515df3e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.006570][ T6528] RAX: ffffffffffffffda RBX: 00007f9515df3ee0 RCX: 00007f95167b260a
[ 244.014671][ T6528] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515df3ea0
[ 244.023196][ T6528] RBP: 0000200000000400 R08: 00007f9515df3ee0 R09: 0000000000000000
[ 244.031448][ T6528] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 244.039516][ T6528] R13: 00007f9515df3ea0 R14: 00000000000125ed R15: 0000200000000640
[ 244.047602][ T6528]
[ 244.050617][ T6542] CPU: 1 PID: 6542 Comm: syz.3.402 Not tainted syzkaller #0
[ 244.058217][ T6542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 244.068690][ T6542] Call Trace:
[ 244.072158][ T6542]
[ 244.075284][ T6542] dump_stack_lvl+0x188/0x250
[ 244.081073][ T6542] ? show_regs_print_info+0x20/0x20
[ 244.086500][ T6542] ? load_image+0x400/0x400
[ 244.091470][ T6542] sysfs_create_dir_ns+0x26a/0x290
[ 244.096801][ T6542] ? sysfs_warn_dup+0xa0/0xa0
[ 244.102200][ T6542] ? do_raw_spin_unlock+0x11d/0x230
[ 244.107814][ T6542] kobject_add_internal+0x6e0/0xd90
[ 244.113427][ T6542] kobject_init_and_add+0x128/0x190
[ 244.119560][ T6542] ? lockdep_softirqs_off+0x430/0x430
[ 244.125130][ T6542] ? kobject_add+0x230/0x230
[ 244.129999][ T6542] ? __init_swait_queue_head+0xa5/0x150
[ 244.135784][ T6542] gfs2_sys_fs_add+0x24f/0x4b0
[ 244.140649][ T6542] ? gfs2_recover_set+0x240/0x240
[ 244.145797][ T6542] ? snprintf+0xe5/0x140
[ 244.150244][ T6542] ? __free_pages+0x95/0x1a0
[ 244.155439][ T6542] ? vscnprintf+0x80/0x80
[ 244.160159][ T6542] gfs2_fill_super+0x120f/0x1f00
[ 244.165395][ T6542] ? gfs2_reconfigure+0xd30/0xd30
[ 244.170542][ T6542] ? sb_set_blocksize+0xa5/0xe0
[ 244.175415][ T6542] get_tree_bdev+0x3f1/0x610
[ 244.180016][ T6542] ? gfs2_reconfigure+0xd30/0xd30
[ 244.185145][ T6542] gfs2_get_tree+0x4d/0x1e0
[ 244.189694][ T6542] vfs_get_tree+0x88/0x270
[ 244.194129][ T6542] do_new_mount+0x24a/0xa40
[ 244.198917][ T6542] __se_sys_mount+0x2e3/0x3d0
[ 244.203692][ T6542] ? __x64_sys_mount+0xc0/0xc0
[ 244.208470][ T6542] ? lockdep_hardirqs_on+0x94/0x140
[ 244.213691][ T6542] ? __x64_sys_mount+0x1c/0xc0
[ 244.218481][ T6542] do_syscall_64+0x4c/0xa0
[ 244.223035][ T6542] ? clear_bhb_loop+0x30/0x80
[ 244.228435][ T6542] ? clear_bhb_loop+0x30/0x80
[ 244.233125][ T6542] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 244.239129][ T6542] RIP: 0033:0x7f94881c160a
[ 244.243655][ T6542] 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
[ 244.263453][ T6542] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.271905][ T6542] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 244.279989][ T6542] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 244.288060][ T6542] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 244.296314][ T6542] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 244.304401][ T6542] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 244.312764][ T6542]
[ 244.316901][ T6542] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.330468][ T6542] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.348252][ T6528] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.372296][ T6528] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/03/31 16:50:28 executed programs: 398
[ 245.041984][ T6548] set_capacity_and_notify: 2 callbacks suppressed
[ 245.041999][ T6548] loop2: detected capacity change from 0 to 32768
[ 245.085991][ T6550] loop4: detected capacity change from 0 to 32768
[ 245.111337][ T6548] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.111337][ T6544] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.111356][ T6548] CPU: 0 PID: 6548 Comm: syz.2.404 Not tainted syzkaller #0
[ 245.133566][ T6548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 245.143678][ T6548] Call Trace:
[ 245.147055][ T6548]
[ 245.150248][ T6548] dump_stack_lvl+0x188/0x250
[ 245.154945][ T6548] ? show_regs_print_info+0x20/0x20
[ 245.160423][ T6548] ? load_image+0x400/0x400
[ 245.165516][ T6548] sysfs_create_dir_ns+0x26a/0x290
[ 245.170817][ T6548] ? sysfs_warn_dup+0xa0/0xa0
[ 245.175931][ T6548] ? do_raw_spin_unlock+0x11d/0x230
[ 245.181482][ T6548] kobject_add_internal+0x6e0/0xd90
[ 245.187375][ T6548] kobject_init_and_add+0x128/0x190
[ 245.192686][ T6548] ? lockdep_softirqs_off+0x430/0x430
[ 245.198058][ T6548] ? kobject_add+0x230/0x230
[ 245.202705][ T6548] ? __init_swait_queue_head+0xa5/0x150
[ 245.208506][ T6548] gfs2_sys_fs_add+0x24f/0x4b0
[ 245.213428][ T6548] ? gfs2_recover_set+0x240/0x240
[ 245.218492][ T6548] ? snprintf+0xe5/0x140
[ 245.222752][ T6548] ? __free_pages+0x95/0x1a0
[ 245.227612][ T6548] ? vscnprintf+0x80/0x80
[ 245.232220][ T6548] gfs2_fill_super+0x120f/0x1f00
[ 245.237315][ T6548] ? gfs2_reconfigure+0xd30/0xd30
[ 245.242455][ T6548] ? sb_set_blocksize+0xa5/0xe0
[ 245.247485][ T6548] get_tree_bdev+0x3f1/0x610
[ 245.252170][ T6548] ? gfs2_reconfigure+0xd30/0xd30
[ 245.257199][ T6548] gfs2_get_tree+0x4d/0x1e0
[ 245.261787][ T6548] vfs_get_tree+0x88/0x270
[ 245.266286][ T6548] do_new_mount+0x24a/0xa40
[ 245.270982][ T6548] __se_sys_mount+0x2e3/0x3d0
[ 245.275857][ T6548] ? __x64_sys_mount+0xc0/0xc0
[ 245.280643][ T6548] ? lockdep_hardirqs_on+0x94/0x140
[ 245.286023][ T6548] ? __x64_sys_mount+0x1c/0xc0
[ 245.290806][ T6548] do_syscall_64+0x4c/0xa0
[ 245.295399][ T6548] ? clear_bhb_loop+0x30/0x80
[ 245.300182][ T6548] ? clear_bhb_loop+0x30/0x80
[ 245.305229][ T6548] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 245.311510][ T6548] RIP: 0033:0x7f95167b260a
[ 245.315990][ T6548] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 245.336197][ T6548] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.344708][ T6548] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 245.352952][ T6548] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
[ 245.361287][ T6548] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 245.369345][ T6548] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 245.377415][ T6548] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
[ 245.386203][ T6548]
[ 245.389230][ T6544] CPU: 1 PID: 6544 Comm: syz.3.403 Not tainted syzkaller #0
[ 245.390143][ T6548] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.397194][ T6544] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 245.397206][ T6544] Call Trace:
[ 245.397214][ T6544]
[ 245.397221][ T6544] dump_stack_lvl+0x188/0x250
[ 245.412350][ T6548] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.422375][ T6544] ? show_regs_print_info+0x20/0x20
[ 245.422407][ T6544] ? load_image+0x400/0x400
[ 245.422432][ T6544] sysfs_create_dir_ns+0x26a/0x290
[ 245.456222][ T6544] ? sysfs_warn_dup+0xa0/0xa0
[ 245.460918][ T6544] ? do_raw_spin_unlock+0x11d/0x230
[ 245.461698][ T6546] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.466138][ T6544] kobject_add_internal+0x6e0/0xd90
[ 245.480378][ T6544] kobject_init_and_add+0x128/0x190
[ 245.485842][ T6544] ? lockdep_softirqs_off+0x430/0x430
[ 245.491549][ T6544] ? kobject_add+0x230/0x230
[ 245.496417][ T6544] ? __init_swait_queue_head+0xa5/0x150
[ 245.501966][ T6544] gfs2_sys_fs_add+0x24f/0x4b0
[ 245.507075][ T6544] ? gfs2_recover_set+0x240/0x240
[ 245.508195][ T6550] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.512091][ T6544] ? snprintf+0xe5/0x140
[ 245.524281][ T6544] ? __free_pages+0x95/0x1a0
[ 245.528957][ T6544] ? vscnprintf+0x80/0x80
[ 245.533288][ T6544] gfs2_fill_super+0x120f/0x1f00
[ 245.538417][ T6544] ? gfs2_reconfigure+0xd30/0xd30
[ 245.543456][ T6544] ? sb_set_blocksize+0xa5/0xe0
[ 245.548308][ T6544] get_tree_bdev+0x3f1/0x610
[ 245.553045][ T6544] ? gfs2_reconfigure+0xd30/0xd30
[ 245.558326][ T6544] gfs2_get_tree+0x4d/0x1e0
[ 245.562998][ T6544] vfs_get_tree+0x88/0x270
[ 245.567586][ T6544] do_new_mount+0x24a/0xa40
[ 245.572204][ T6544] __se_sys_mount+0x2e3/0x3d0
[ 245.576995][ T6544] ? __x64_sys_mount+0xc0/0xc0
[ 245.581848][ T6544] ? lockdep_hardirqs_on+0x94/0x140
[ 245.587048][ T6544] ? __x64_sys_mount+0x1c/0xc0
[ 245.591812][ T6544] do_syscall_64+0x4c/0xa0
[ 245.596407][ T6544] ? clear_bhb_loop+0x30/0x80
[ 245.601078][ T6544] ? clear_bhb_loop+0x30/0x80
[ 245.606340][ T6544] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 245.612433][ T6544] RIP: 0033:0x7f94881c160a
[ 245.617881][ T6544] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 245.638912][ T6544] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.647416][ T6544] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 245.655565][ T6544] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 245.664421][ T6544] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 245.673015][ T6544] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 245.681257][ T6544] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 245.689478][ T6544]
[ 245.692589][ T6550] CPU: 0 PID: 6550 Comm: syz.4.406 Not tainted syzkaller #0
[ 245.692646][ T6544] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.700145][ T6550] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 245.700157][ T6550] Call Trace:
[ 245.700164][ T6550]
[ 245.700171][ T6550] dump_stack_lvl+0x188/0x250
[ 245.713425][ T6544] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.723793][ T6550] ? show_regs_print_info+0x20/0x20
[ 245.723825][ T6550] ? load_image+0x400/0x400
[ 245.723849][ T6550] sysfs_create_dir_ns+0x26a/0x290
[ 245.723880][ T6550] ? sysfs_warn_dup+0xa0/0xa0
[ 245.763052][ T6550] ? do_raw_spin_unlock+0x11d/0x230
[ 245.768457][ T6550] kobject_add_internal+0x6e0/0xd90
[ 245.773783][ T6550] kobject_init_and_add+0x128/0x190
[ 245.779745][ T6550] ? lockdep_softirqs_off+0x430/0x430
[ 245.786750][ T6550] ? kobject_add+0x230/0x230
[ 245.791741][ T6550] ? __init_swait_queue_head+0xa5/0x150
[ 245.797930][ T6550] gfs2_sys_fs_add+0x24f/0x4b0
[ 245.802978][ T6550] ? gfs2_recover_set+0x240/0x240
[ 245.808021][ T6550] ? snprintf+0xe5/0x140
[ 245.812391][ T6550] ? __free_pages+0x95/0x1a0
[ 245.817273][ T6550] ? vscnprintf+0x80/0x80
[ 245.822010][ T6550] gfs2_fill_super+0x120f/0x1f00
[ 245.827167][ T6550] ? gfs2_reconfigure+0xd30/0xd30
[ 245.832518][ T6550] ? sb_set_blocksize+0xa5/0xe0
[ 245.837739][ T6550] get_tree_bdev+0x3f1/0x610
[ 245.842515][ T6550] ? gfs2_reconfigure+0xd30/0xd30
[ 245.847937][ T6550] gfs2_get_tree+0x4d/0x1e0
[ 245.853459][ T6550] vfs_get_tree+0x88/0x270
[ 245.858167][ T6550] do_new_mount+0x24a/0xa40
[ 245.862800][ T6550] __se_sys_mount+0x2e3/0x3d0
[ 245.867513][ T6550] ? __x64_sys_mount+0xc0/0xc0
[ 245.872558][ T6550] ? lockdep_hardirqs_on+0x94/0x140
[ 245.877956][ T6550] ? __x64_sys_mount+0x1c/0xc0
[ 245.882998][ T6550] do_syscall_64+0x4c/0xa0
[ 245.887611][ T6550] ? clear_bhb_loop+0x30/0x80
[ 245.892913][ T6550] ? clear_bhb_loop+0x30/0x80
[ 245.898003][ T6550] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 245.904344][ T6550] RIP: 0033:0x7fded93a760a
[ 245.909125][ T6550] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 245.930894][ T6550] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.939325][ T6550] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 245.947483][ T6550] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 245.956128][ T6550] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 245.964216][ T6550] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 245.972389][ T6550] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 245.982225][ T6550]
[ 245.985387][ T6546] CPU: 1 PID: 6546 Comm: syz.5.405 Not tainted syzkaller #0
[ 245.986194][ T6550] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.992767][ T6546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 245.992781][ T6546] Call Trace:
[ 245.992788][ T6546]
[ 245.992795][ T6546] dump_stack_lvl+0x188/0x250
[ 245.992819][ T6546] ? show_regs_print_info+0x20/0x20
[ 245.992838][ T6546] ? load_image+0x400/0x400
[ 245.992862][ T6546] sysfs_create_dir_ns+0x26a/0x290
[ 245.992881][ T6546] ? sysfs_warn_dup+0xa0/0xa0
[ 245.992895][ T6546] ? do_raw_spin_unlock+0x11d/0x230
[ 245.992917][ T6546] kobject_add_internal+0x6e0/0xd90
[ 245.992941][ T6546] kobject_init_and_add+0x128/0x190
[ 245.992959][ T6546] ? lockdep_softirqs_off+0x430/0x430
[ 245.992982][ T6546] ? kobject_add+0x230/0x230
[ 245.993002][ T6546] ? __init_swait_queue_head+0xa5/0x150
[ 245.993028][ T6546] gfs2_sys_fs_add+0x24f/0x4b0
[ 245.993048][ T6546] ? gfs2_recover_set+0x240/0x240
[ 245.993064][ T6546] ? snprintf+0xe5/0x140
[ 245.993080][ T6546] ? __free_pages+0x95/0x1a0
[ 245.993103][ T6546] ? vscnprintf+0x80/0x80
[ 245.993131][ T6546] gfs2_fill_super+0x120f/0x1f00
[ 245.993163][ T6546] ? gfs2_reconfigure+0xd30/0xd30
[ 245.993195][ T6546] ? sb_set_blocksize+0xa5/0xe0
[ 245.993215][ T6546] get_tree_bdev+0x3f1/0x610
[ 245.993237][ T6546] ? gfs2_reconfigure+0xd30/0xd30
[ 245.993258][ T6546] gfs2_get_tree+0x4d/0x1e0
[ 245.993279][ T6546] vfs_get_tree+0x88/0x270
[ 245.993300][ T6546] do_new_mount+0x24a/0xa40
[ 245.993323][ T6546] __se_sys_mount+0x2e3/0x3d0
[ 246.006994][ T6550] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 246.017328][ T6546] ? __x64_sys_mount+0xc0/0xc0
[ 246.017363][ T6546] ? lockdep_hardirqs_on+0x94/0x140
[ 246.017381][ T6546] ? __x64_sys_mount+0x1c/0xc0
[ 246.188372][ T6546] do_syscall_64+0x4c/0xa0
[ 246.194434][ T6546] ? clear_bhb_loop+0x30/0x80
[ 246.200183][ T6546] ? clear_bhb_loop+0x30/0x80
[ 246.206785][ T6546] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 246.213674][ T6546] RIP: 0033:0x7f58b132260a
[ 246.220023][ T6546] 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
[ 246.242478][ T6546] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 246.251962][ T6546] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 246.261691][ T6546] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
[ 246.271133][ T6546] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 246.281212][ T6546] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 246.290315][ T6546] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 246.300096][ T6546]
[ 246.307088][ T6546] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 246.326619][ T6546] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 246.720334][ T6552] loop0: detected capacity change from 0 to 32768
[ 246.777600][ T6552] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 246.785683][ T6552] CPU: 1 PID: 6552 Comm: syz.0.407 Not tainted syzkaller #0
[ 246.793166][ T6552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 246.803425][ T6552] Call Trace:
[ 246.806731][ T6552]
[ 246.809691][ T6552] dump_stack_lvl+0x188/0x250
[ 246.814585][ T6552] ? show_regs_print_info+0x20/0x20
[ 246.819987][ T6552] ? load_image+0x400/0x400
[ 246.824530][ T6552] sysfs_create_dir_ns+0x26a/0x290
[ 246.829999][ T6552] ? sysfs_warn_dup+0xa0/0xa0
[ 246.834689][ T6552] ? do_raw_spin_unlock+0x11d/0x230
[ 246.840190][ T6552] kobject_add_internal+0x6e0/0xd90
[ 246.845971][ T6552] kobject_init_and_add+0x128/0x190
[ 246.851597][ T6552] ? lockdep_softirqs_off+0x430/0x430
[ 246.857342][ T6552] ? kobject_add+0x230/0x230
[ 246.862152][ T6552] ? __init_swait_queue_head+0xa5/0x150
[ 246.868007][ T6552] gfs2_sys_fs_add+0x24f/0x4b0
[ 246.873078][ T6552] ? gfs2_recover_set+0x240/0x240
[ 246.878229][ T6552] ? snprintf+0xe5/0x140
[ 246.883255][ T6552] ? __free_pages+0x95/0x1a0
[ 246.888144][ T6552] ? vscnprintf+0x80/0x80
[ 246.892782][ T6552] gfs2_fill_super+0x120f/0x1f00
[ 246.897981][ T6552] ? gfs2_reconfigure+0xd30/0xd30
[ 246.903058][ T6552] ? sb_set_blocksize+0xa5/0xe0
[ 246.908647][ T6552] get_tree_bdev+0x3f1/0x610
[ 246.913576][ T6552] ? gfs2_reconfigure+0xd30/0xd30
[ 246.918730][ T6552] gfs2_get_tree+0x4d/0x1e0
[ 246.923520][ T6552] vfs_get_tree+0x88/0x270
[ 246.928122][ T6552] do_new_mount+0x24a/0xa40
[ 246.933421][ T6552] __se_sys_mount+0x2e3/0x3d0
[ 246.938516][ T6552] ? __x64_sys_mount+0xc0/0xc0
[ 246.943495][ T6552] ? lockdep_hardirqs_on+0x94/0x140
[ 246.948730][ T6552] ? __x64_sys_mount+0x1c/0xc0
[ 246.953598][ T6552] do_syscall_64+0x4c/0xa0
[ 246.958560][ T6552] ? clear_bhb_loop+0x30/0x80
[ 246.964037][ T6552] ? clear_bhb_loop+0x30/0x80
[ 246.969304][ T6552] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 246.975691][ T6552] RIP: 0033:0x7f44434eb60a
[ 246.980522][ T6552] 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
[ 246.990433][ T6558] loop5: detected capacity change from 0 to 32768
[ 247.002173][ T6552] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.002200][ T6552] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 247.002211][ T6552] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 247.002224][ T6552] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
[ 247.002234][ T6552] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 247.002244][ T6552] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
[ 247.002267][ T6552]
[ 247.064378][ T6552] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 247.079586][ T6552] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 247.275264][ T6561] loop3: detected capacity change from 0 to 32768
[ 247.394328][ T6559] loop4: detected capacity change from 0 to 32768
[ 247.482345][ T6561] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.493349][ T6561] CPU: 1 PID: 6561 Comm: syz.3.411 Not tainted syzkaller #0
[ 247.502141][ T6561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 247.514485][ T6561] Call Trace:
[ 247.518752][ T6561]
[ 247.522346][ T6561] dump_stack_lvl+0x188/0x250
[ 247.528445][ T6561] ? show_regs_print_info+0x20/0x20
[ 247.534254][ T6561] ? load_image+0x400/0x400
[ 247.539766][ T6561] sysfs_create_dir_ns+0x26a/0x290
[ 247.545205][ T6561] ? sysfs_warn_dup+0xa0/0xa0
[ 247.550675][ T6561] ? do_raw_spin_unlock+0x11d/0x230
[ 247.558677][ T6561] kobject_add_internal+0x6e0/0xd90
[ 247.565968][ T6561] kobject_init_and_add+0x128/0x190
[ 247.572761][ T6561] ? lockdep_softirqs_off+0x430/0x430
[ 247.578711][ T6561] ? kobject_add+0x230/0x230
[ 247.584544][ T6561] ? __init_swait_queue_head+0xa5/0x150
[ 247.592325][ T6561] gfs2_sys_fs_add+0x24f/0x4b0
[ 247.597612][ T6561] ? gfs2_recover_set+0x240/0x240
[ 247.603269][ T6561] ? snprintf+0xe5/0x140
[ 247.608281][ T6561] ? __free_pages+0x95/0x1a0
[ 247.613743][ T6561] ? vscnprintf+0x80/0x80
[ 247.618596][ T6561] gfs2_fill_super+0x120f/0x1f00
[ 247.624056][ T6561] ? gfs2_reconfigure+0xd30/0xd30
[ 247.630017][ T6561] ? sb_set_blocksize+0xa5/0xe0
[ 247.635608][ T6561] get_tree_bdev+0x3f1/0x610
[ 247.640452][ T6561] ? gfs2_reconfigure+0xd30/0xd30
[ 247.646439][ T6561] gfs2_get_tree+0x4d/0x1e0
[ 247.651151][ T6561] vfs_get_tree+0x88/0x270
[ 247.657268][ T6561] do_new_mount+0x24a/0xa40
[ 247.662804][ T6561] __se_sys_mount+0x2e3/0x3d0
[ 247.669108][ T6561] ? __x64_sys_mount+0xc0/0xc0
[ 247.675201][ T6561] ? lockdep_hardirqs_on+0x94/0x140
[ 247.680821][ T6561] ? __x64_sys_mount+0x1c/0xc0
[ 247.686353][ T6561] do_syscall_64+0x4c/0xa0
[ 247.691083][ T6561] ? clear_bhb_loop+0x30/0x80
[ 247.696496][ T6561] ? clear_bhb_loop+0x30/0x80
[ 247.701642][ T6561] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 247.708010][ T6561] RIP: 0033:0x7f94881c160a
[ 247.712754][ T6561] 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
[ 247.736477][ T6561] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.745781][ T6561] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 247.754939][ T6561] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 247.764071][ T6561] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 247.772323][ T6561] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 247.781716][ T6561] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 247.790861][ T6561]
[ 247.795553][ T6561] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 247.802397][ T6558] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.810538][ T6561] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 247.819595][ T6558] CPU: 0 PID: 6558 Comm: syz.5.410 Not tainted syzkaller #0
[ 247.835318][ T6558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 247.849073][ T6558] Call Trace:
[ 247.853586][ T6558]
[ 247.857301][ T6558] dump_stack_lvl+0x188/0x250
[ 247.863291][ T6558] ? show_regs_print_info+0x20/0x20
[ 247.870026][ T6558] ? load_image+0x400/0x400
[ 247.874981][ T6558] sysfs_create_dir_ns+0x26a/0x290
[ 247.880427][ T6558] ? sysfs_warn_dup+0xa0/0xa0
[ 247.885551][ T6558] ? do_raw_spin_unlock+0x11d/0x230
[ 247.891379][ T6558] kobject_add_internal+0x6e0/0xd90
[ 247.897119][ T6558] kobject_init_and_add+0x128/0x190
[ 247.902684][ T6558] ? lockdep_softirqs_off+0x430/0x430
[ 247.908727][ T6558] ? kobject_add+0x230/0x230
[ 247.914425][ T6558] ? __init_swait_queue_head+0xa5/0x150
[ 247.923546][ T6558] gfs2_sys_fs_add+0x24f/0x4b0
[ 247.929121][ T6558] ? gfs2_recover_set+0x240/0x240
[ 247.936070][ T6558] ? snprintf+0xe5/0x140
[ 247.940683][ T6558] ? __free_pages+0x95/0x1a0
[ 247.945605][ T6558] ? vscnprintf+0x80/0x80
[ 247.950520][ T6558] gfs2_fill_super+0x120f/0x1f00
[ 247.955933][ T6558] ? gfs2_reconfigure+0xd30/0xd30
[ 247.961583][ T6558] ? sb_set_blocksize+0xa5/0xe0
[ 247.967588][ T6558] get_tree_bdev+0x3f1/0x610
[ 247.972548][ T6558] ? gfs2_reconfigure+0xd30/0xd30
[ 247.977941][ T6558] gfs2_get_tree+0x4d/0x1e0
[ 247.983170][ T6558] vfs_get_tree+0x88/0x270
[ 247.988144][ T6558] do_new_mount+0x24a/0xa40
[ 247.994478][ T6558] __se_sys_mount+0x2e3/0x3d0
[ 248.000670][ T6558] ? __x64_sys_mount+0xc0/0xc0
[ 248.006003][ T6558] ? lockdep_hardirqs_on+0x94/0x140
[ 248.012158][ T6558] ? __x64_sys_mount+0x1c/0xc0
[ 248.017103][ T6558] do_syscall_64+0x4c/0xa0
[ 248.022380][ T6558] ? clear_bhb_loop+0x30/0x80
[ 248.027225][ T6558] ? clear_bhb_loop+0x30/0x80
[ 248.032990][ T6558] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.039333][ T6558] RIP: 0033:0x7f58b132260a
[ 248.044567][ T6558] 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
[ 248.067948][ T6558] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.078107][ T6558] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 248.087654][ T6558] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
[ 248.096625][ T6558] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 248.105343][ T6558] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.114248][ T6558] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 248.124365][ T6558]
[ 248.128714][ T6558] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.143141][ T6558] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.162549][ T6559] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.173588][ T6559] CPU: 1 PID: 6559 Comm: syz.4.409 Not tainted syzkaller #0
[ 248.183069][ T6559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 248.197522][ T6559] Call Trace:
[ 248.201794][ T6559]
[ 248.205454][ T6559] dump_stack_lvl+0x188/0x250
[ 248.210988][ T6559] ? show_regs_print_info+0x20/0x20
[ 248.216904][ T6559] ? load_image+0x400/0x400
[ 248.222217][ T6559] sysfs_create_dir_ns+0x26a/0x290
[ 248.228188][ T6559] ? sysfs_warn_dup+0xa0/0xa0
[ 248.233183][ T6559] ? do_raw_spin_unlock+0x11d/0x230
[ 248.241044][ T6559] kobject_add_internal+0x6e0/0xd90
[ 248.247609][ T6559] kobject_init_and_add+0x128/0x190
[ 248.254742][ T6559] ? lockdep_softirqs_off+0x430/0x430
[ 248.262607][ T6559] ? kobject_add+0x230/0x230
[ 248.267339][ T6559] ? __init_swait_queue_head+0xa5/0x150
[ 248.273058][ T6559] gfs2_sys_fs_add+0x24f/0x4b0
[ 248.278275][ T6559] ? gfs2_recover_set+0x240/0x240
[ 248.284709][ T6559] ? snprintf+0xe5/0x140
[ 248.290123][ T6559] ? __free_pages+0x95/0x1a0
[ 248.295323][ T6559] ? vscnprintf+0x80/0x80
[ 248.300282][ T6559] gfs2_fill_super+0x120f/0x1f00
[ 248.306118][ T6559] ? gfs2_reconfigure+0xd30/0xd30
[ 248.311828][ T6559] ? sb_set_blocksize+0xa5/0xe0
[ 248.316877][ T6559] get_tree_bdev+0x3f1/0x610
[ 248.321486][ T6559] ? gfs2_reconfigure+0xd30/0xd30
[ 248.327422][ T6559] gfs2_get_tree+0x4d/0x1e0
[ 248.332505][ T6559] vfs_get_tree+0x88/0x270
[ 248.337325][ T6559] do_new_mount+0x24a/0xa40
[ 248.342829][ T6559] __se_sys_mount+0x2e3/0x3d0
[ 248.347968][ T6559] ? __x64_sys_mount+0xc0/0xc0
[ 248.353041][ T6559] ? lockdep_hardirqs_on+0x94/0x140
[ 248.360081][ T6559] ? __x64_sys_mount+0x1c/0xc0
[ 248.365651][ T6559] do_syscall_64+0x4c/0xa0
[ 248.370608][ T6559] ? clear_bhb_loop+0x30/0x80
[ 248.376120][ T6559] ? clear_bhb_loop+0x30/0x80
[ 248.381833][ T6559] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.389595][ T6559] RIP: 0033:0x7fded93a760a
[ 248.396624][ T6559] 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
[ 248.423320][ T6559] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.432916][ T6559] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 248.442323][ T6559] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 248.451605][ T6559] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 248.460498][ T6559] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.470127][ T6559] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 248.479196][ T6559]
[ 248.484472][ T6559] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.500466][ T6559] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.049134][ T6565] loop0: detected capacity change from 0 to 32768
[ 249.101730][ T6569] loop3: detected capacity change from 0 to 32768
[ 249.408574][ T6571] loop5: detected capacity change from 0 to 32768
[ 249.478524][ T6565] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.487100][ T6565] CPU: 1 PID: 6565 Comm: syz.0.413 Not tainted syzkaller #0
[ 249.496791][ T6565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 249.509772][ T6565] Call Trace:
[ 249.513448][ T6565]
[ 249.516696][ T6565] dump_stack_lvl+0x188/0x250
[ 249.521824][ T6565] ? show_regs_print_info+0x20/0x20
[ 249.528987][ T6565] ? load_image+0x400/0x400
[ 249.534242][ T6565] sysfs_create_dir_ns+0x26a/0x290
[ 249.539884][ T6565] ? sysfs_warn_dup+0xa0/0xa0
[ 249.545706][ T6565] ? do_raw_spin_unlock+0x11d/0x230
[ 249.551772][ T6565] kobject_add_internal+0x6e0/0xd90
[ 249.559901][ T6565] kobject_init_and_add+0x128/0x190
[ 249.566592][ T6565] ? lockdep_softirqs_off+0x430/0x430
[ 249.574697][ T6565] ? kobject_add+0x230/0x230
[ 249.579913][ T6565] ? __init_swait_queue_head+0xa5/0x150
[ 249.588220][ T6565] gfs2_sys_fs_add+0x24f/0x4b0
[ 249.594710][ T6565] ? gfs2_recover_set+0x240/0x240
[ 249.600102][ T6565] ? snprintf+0xe5/0x140
[ 249.605952][ T6565] ? __free_pages+0x95/0x1a0
[ 249.611766][ T6565] ? vscnprintf+0x80/0x80
[ 249.617760][ T6565] gfs2_fill_super+0x120f/0x1f00
[ 249.625143][ T6565] ? gfs2_reconfigure+0xd30/0xd30
[ 249.632700][ T6565] ? sb_set_blocksize+0xa5/0xe0
[ 249.638563][ T6565] get_tree_bdev+0x3f1/0x610
[ 249.643396][ T6565] ? gfs2_reconfigure+0xd30/0xd30
[ 249.649413][ T6565] gfs2_get_tree+0x4d/0x1e0
[ 249.654314][ T6565] vfs_get_tree+0x88/0x270
[ 249.660074][ T6565] do_new_mount+0x24a/0xa40
[ 249.666106][ T6565] __se_sys_mount+0x2e3/0x3d0
[ 249.671560][ T6565] ? __x64_sys_mount+0xc0/0xc0
[ 249.676436][ T6565] ? lockdep_hardirqs_on+0x94/0x140
[ 249.682418][ T6565] ? __x64_sys_mount+0x1c/0xc0
[ 249.688139][ T6565] do_syscall_64+0x4c/0xa0
[ 249.692934][ T6565] ? clear_bhb_loop+0x30/0x80
[ 249.698833][ T6565] ? clear_bhb_loop+0x30/0x80
[ 249.703886][ T6565] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 249.710238][ T6565] RIP: 0033:0x7f44434eb60a
[ 249.715574][ T6565] 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
[ 249.738043][ T6565] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.747172][ T6565] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 249.759241][ T6565] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 249.768215][ T6565] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
2026/03/31 16:50:33 executed programs: 411
[ 249.776905][ T6565] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 249.785988][ T6565] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
[ 249.796073][ T6565]
[ 249.801139][ T6565] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.820461][ T6565] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.843167][ T6571] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.843554][ T6569] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.851335][ T6571] CPU: 1 PID: 6571 Comm: syz.5.415 Not tainted syzkaller #0
[ 249.851357][ T6571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 249.851367][ T6571] Call Trace:
[ 249.851374][ T6571]
[ 249.851381][ T6571] dump_stack_lvl+0x188/0x250
[ 249.851404][ T6571] ? show_regs_print_info+0x20/0x20
[ 249.851424][ T6571] ? load_image+0x400/0x400
[ 249.851446][ T6571] sysfs_create_dir_ns+0x26a/0x290
[ 249.851465][ T6571] ? sysfs_warn_dup+0xa0/0xa0
[ 249.851484][ T6571] ? do_raw_spin_unlock+0x11d/0x230
[ 249.851505][ T6571] kobject_add_internal+0x6e0/0xd90
[ 249.851530][ T6571] kobject_init_and_add+0x128/0x190
[ 249.851554][ T6571] ? lockdep_softirqs_off+0x430/0x430
[ 249.851585][ T6571] ? kobject_add+0x230/0x230
[ 249.851631][ T6571] ? __init_swait_queue_head+0xa5/0x150
[ 249.851661][ T6571] gfs2_sys_fs_add+0x24f/0x4b0
[ 249.851683][ T6571] ? gfs2_recover_set+0x240/0x240
[ 249.851702][ T6571] ? snprintf+0xe5/0x140
[ 249.851718][ T6571] ? __free_pages+0x95/0x1a0
[ 249.851740][ T6571] ? vscnprintf+0x80/0x80
[ 249.851768][ T6571] gfs2_fill_super+0x120f/0x1f00
[ 249.851800][ T6571] ? gfs2_reconfigure+0xd30/0xd30
[ 249.851844][ T6571] ? sb_set_blocksize+0xa5/0xe0
[ 249.851867][ T6571] get_tree_bdev+0x3f1/0x610
[ 249.851893][ T6571] ? gfs2_reconfigure+0xd30/0xd30
[ 249.851918][ T6571] gfs2_get_tree+0x4d/0x1e0
[ 249.851940][ T6571] vfs_get_tree+0x88/0x270
[ 249.851960][ T6571] do_new_mount+0x24a/0xa40
[ 249.851992][ T6571] __se_sys_mount+0x2e3/0x3d0
[ 249.852019][ T6571] ? __x64_sys_mount+0xc0/0xc0
[ 249.852041][ T6571] ? lockdep_hardirqs_on+0x94/0x140
[ 249.852064][ T6571] ? __x64_sys_mount+0x1c/0xc0
[ 249.852097][ T6571] do_syscall_64+0x4c/0xa0
[ 249.852122][ T6571] ? clear_bhb_loop+0x30/0x80
[ 249.852139][ T6571] ? clear_bhb_loop+0x30/0x80
[ 249.852158][ T6571] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 249.852176][ T6571] RIP: 0033:0x7f58b132260a
[ 249.852195][ T6571] 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
[ 249.852210][ T6571] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.852231][ T6571] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 249.852245][ T6571] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
[ 249.852259][ T6571] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 249.852271][ T6571] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 249.852283][ T6571] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 249.852305][ T6571]
[ 249.852321][ T6571] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.852333][ T6571] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.138647][ T6576] loop2: detected capacity change from 0 to 32768
[ 250.146169][ T6569] CPU: 0 PID: 6569 Comm: syz.3.414 Not tainted syzkaller #0
[ 250.236603][ T6569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 250.248193][ T6569] Call Trace:
[ 250.251857][ T6569]
[ 250.255415][ T6569] dump_stack_lvl+0x188/0x250
[ 250.260915][ T6569] ? show_regs_print_info+0x20/0x20
[ 250.267024][ T6569] ? load_image+0x400/0x400
[ 250.272758][ T6569] sysfs_create_dir_ns+0x26a/0x290
[ 250.279219][ T6569] ? sysfs_warn_dup+0xa0/0xa0
[ 250.284900][ T6569] ? do_raw_spin_unlock+0x11d/0x230
[ 250.290551][ T6569] kobject_add_internal+0x6e0/0xd90
[ 250.296536][ T6569] kobject_init_and_add+0x128/0x190
[ 250.303316][ T6569] ? lockdep_softirqs_off+0x430/0x430
[ 250.309753][ T6569] ? kobject_add+0x230/0x230
[ 250.315270][ T6569] ? __init_swait_queue_head+0xa5/0x150
[ 250.322444][ T6569] gfs2_sys_fs_add+0x24f/0x4b0
[ 250.328206][ T6569] ? gfs2_recover_set+0x240/0x240
[ 250.335655][ T6569] ? snprintf+0xe5/0x140
[ 250.340899][ T6569] ? __free_pages+0x95/0x1a0
[ 250.346083][ T6569] ? vscnprintf+0x80/0x80
[ 250.351062][ T6569] gfs2_fill_super+0x120f/0x1f00
[ 250.357469][ T6569] ? gfs2_reconfigure+0xd30/0xd30
[ 250.365362][ T6569] ? sb_set_blocksize+0xa5/0xe0
[ 250.371836][ T6569] get_tree_bdev+0x3f1/0x610
[ 250.377627][ T6569] ? gfs2_reconfigure+0xd30/0xd30
[ 250.383133][ T6569] gfs2_get_tree+0x4d/0x1e0
[ 250.388011][ T6569] vfs_get_tree+0x88/0x270
[ 250.393611][ T6569] do_new_mount+0x24a/0xa40
[ 250.400251][ T6569] __se_sys_mount+0x2e3/0x3d0
[ 250.405528][ T6569] ? __x64_sys_mount+0xc0/0xc0
[ 250.410773][ T6569] ? lockdep_hardirqs_on+0x94/0x140
[ 250.417139][ T6569] ? __x64_sys_mount+0x1c/0xc0
[ 250.422655][ T6569] do_syscall_64+0x4c/0xa0
[ 250.427622][ T6569] ? clear_bhb_loop+0x30/0x80
[ 250.432874][ T6569] ? clear_bhb_loop+0x30/0x80
[ 250.438325][ T6569] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.444764][ T6569] RIP: 0033:0x7f94881c160a
[ 250.449611][ T6569] 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
[ 250.474680][ T6569] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.484767][ T6569] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 250.494004][ T6569] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 250.502680][ T6569] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 250.511299][ T6569] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 250.520883][ T6569] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 250.529666][ T6569]
[ 250.533115][ T6569] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.548501][ T6569] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.571648][ T6577] loop4: detected capacity change from 0 to 32768
[ 250.573254][ T6576] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.588231][ T6576] CPU: 0 PID: 6576 Comm: syz.2.418 Not tainted syzkaller #0
[ 250.596713][ T6576] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 250.607967][ T6576] Call Trace:
[ 250.611773][ T6576]
[ 250.614996][ T6576] dump_stack_lvl+0x188/0x250
[ 250.619873][ T6576] ? show_regs_print_info+0x20/0x20
[ 250.625367][ T6576] ? load_image+0x400/0x400
[ 250.632656][ T6576] sysfs_create_dir_ns+0x26a/0x290
[ 250.638162][ T6576] ? sysfs_warn_dup+0xa0/0xa0
[ 250.643309][ T6576] ? do_raw_spin_unlock+0x11d/0x230
[ 250.648883][ T6576] kobject_add_internal+0x6e0/0xd90
[ 250.655266][ T6576] kobject_init_and_add+0x128/0x190
[ 250.660990][ T6576] ? lockdep_softirqs_off+0x430/0x430
[ 250.666603][ T6576] ? kobject_add+0x230/0x230
[ 250.672337][ T6576] ? __init_swait_queue_head+0xa5/0x150
[ 250.679103][ T6576] gfs2_sys_fs_add+0x24f/0x4b0
[ 250.684001][ T6576] ? gfs2_recover_set+0x240/0x240
[ 250.689050][ T6576] ? snprintf+0xe5/0x140
[ 250.693892][ T6576] ? __free_pages+0x95/0x1a0
[ 250.698759][ T6576] ? vscnprintf+0x80/0x80
[ 250.703738][ T6576] gfs2_fill_super+0x120f/0x1f00
[ 250.709097][ T6576] ? gfs2_reconfigure+0xd30/0xd30
[ 250.714745][ T6576] ? sb_set_blocksize+0xa5/0xe0
[ 250.720669][ T6576] get_tree_bdev+0x3f1/0x610
[ 250.725719][ T6576] ? gfs2_reconfigure+0xd30/0xd30
[ 250.731522][ T6576] gfs2_get_tree+0x4d/0x1e0
[ 250.736719][ T6576] vfs_get_tree+0x88/0x270
[ 250.741303][ T6576] do_new_mount+0x24a/0xa40
[ 250.745915][ T6576] __se_sys_mount+0x2e3/0x3d0
[ 250.751058][ T6576] ? __x64_sys_mount+0xc0/0xc0
[ 250.757087][ T6576] ? lockdep_hardirqs_on+0x94/0x140
[ 250.762836][ T6576] ? __x64_sys_mount+0x1c/0xc0
[ 250.768185][ T6576] do_syscall_64+0x4c/0xa0
[ 250.772693][ T6576] ? clear_bhb_loop+0x30/0x80
[ 250.777749][ T6576] ? clear_bhb_loop+0x30/0x80
[ 250.783215][ T6576] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.789696][ T6576] RIP: 0033:0x7f95167b260a
[ 250.794335][ 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
[ 250.816354][ T6576] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.826727][ T6576] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 250.839345][ T6576] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
[ 250.848821][ T6576] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 250.858686][ T6576] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 250.867927][ T6576] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
[ 250.878610][ T6576]
[ 250.883968][ T6576] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.899003][ T6576] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.938230][ T6577] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.946018][ T6577] CPU: 0 PID: 6577 Comm: syz.4.419 Not tainted syzkaller #0
[ 250.954907][ T6577] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 250.967220][ T6577] Call Trace:
[ 250.970871][ T6577]
[ 250.973986][ T6577] dump_stack_lvl+0x188/0x250
[ 250.979339][ T6577] ? show_regs_print_info+0x20/0x20
[ 250.985344][ T6577] ? load_image+0x400/0x400
[ 250.990589][ T6577] sysfs_create_dir_ns+0x26a/0x290
[ 250.996176][ T6577] ? sysfs_warn_dup+0xa0/0xa0
[ 251.001167][ T6577] ? do_raw_spin_unlock+0x11d/0x230
[ 251.007076][ T6577] kobject_add_internal+0x6e0/0xd90
[ 251.012796][ T6577] kobject_init_and_add+0x128/0x190
[ 251.018964][ T6577] ? lockdep_softirqs_off+0x430/0x430
[ 251.024898][ T6577] ? kobject_add+0x230/0x230
[ 251.030773][ T6577] ? __init_swait_queue_head+0xa5/0x150
[ 251.037564][ T6577] gfs2_sys_fs_add+0x24f/0x4b0
[ 251.043822][ T6577] ? gfs2_recover_set+0x240/0x240
[ 251.050136][ T6577] ? snprintf+0xe5/0x140
[ 251.055880][ T6577] ? __free_pages+0x95/0x1a0
[ 251.064527][ T6577] ? vscnprintf+0x80/0x80
[ 251.071989][ T6577] gfs2_fill_super+0x120f/0x1f00
[ 251.079539][ T6577] ? gfs2_reconfigure+0xd30/0xd30
[ 251.087811][ T6577] ? sb_set_blocksize+0xa5/0xe0
[ 251.094501][ T6577] get_tree_bdev+0x3f1/0x610
[ 251.101132][ T6577] ? gfs2_reconfigure+0xd30/0xd30
[ 251.109868][ T6577] gfs2_get_tree+0x4d/0x1e0
[ 251.116008][ T6577] vfs_get_tree+0x88/0x270
[ 251.123076][ T6577] do_new_mount+0x24a/0xa40
[ 251.130017][ T6577] __se_sys_mount+0x2e3/0x3d0
[ 251.136619][ T6577] ? __x64_sys_mount+0xc0/0xc0
[ 251.143022][ T6577] ? lockdep_hardirqs_on+0x94/0x140
[ 251.149331][ T6577] ? __x64_sys_mount+0x1c/0xc0
[ 251.154600][ T6577] do_syscall_64+0x4c/0xa0
[ 251.160576][ T6577] ? clear_bhb_loop+0x30/0x80
[ 251.166819][ T6577] ? clear_bhb_loop+0x30/0x80
[ 251.173519][ T6577] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 251.180855][ T6577] RIP: 0033:0x7fded93a760a
[ 251.187645][ 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
[ 251.211446][ T6577] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.222524][ T6577] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 251.233378][ T6577] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 251.242271][ T6577] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 251.251759][ T6577] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 251.260495][ T6577] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 251.270707][ T6577]
[ 251.275078][ T6577] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.290245][ T6577] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.340720][ T6580] loop5: detected capacity change from 0 to 32768
[ 251.650278][ T6583] loop3: detected capacity change from 0 to 32768
[ 251.668515][ T6582] loop0: detected capacity change from 0 to 32768
[ 251.680545][ T6580] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.688154][ T6580] CPU: 1 PID: 6580 Comm: syz.5.420 Not tainted syzkaller #0
[ 251.695557][ T6580] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 251.706153][ T6580] Call Trace:
[ 251.709787][ T6580]
[ 251.712902][ T6580] dump_stack_lvl+0x188/0x250
[ 251.717692][ T6580] ? show_regs_print_info+0x20/0x20
[ 251.723025][ T6580] ? load_image+0x400/0x400
[ 251.727753][ T6580] sysfs_create_dir_ns+0x26a/0x290
[ 251.733249][ T6580] ? sysfs_warn_dup+0xa0/0xa0
[ 251.738240][ T6580] ? do_raw_spin_unlock+0x11d/0x230
[ 251.744003][ T6580] kobject_add_internal+0x6e0/0xd90
[ 251.749518][ T6580] kobject_init_and_add+0x128/0x190
[ 251.754930][ T6580] ? lockdep_softirqs_off+0x430/0x430
[ 251.760504][ T6580] ? kobject_add+0x230/0x230
[ 251.763918][ T6583] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.765497][ T6580] ? __init_swait_queue_head+0xa5/0x150
[ 251.778585][ T6580] gfs2_sys_fs_add+0x24f/0x4b0
[ 251.783940][ T6580] ? gfs2_recover_set+0x240/0x240
[ 251.789528][ T6580] ? snprintf+0xe5/0x140
[ 251.793796][ T6580] ? __free_pages+0x95/0x1a0
[ 251.798508][ T6580] ? vscnprintf+0x80/0x80
[ 251.802957][ T6580] gfs2_fill_super+0x120f/0x1f00
[ 251.807904][ T6580] ? gfs2_reconfigure+0xd30/0xd30
[ 251.813082][ T6580] ? sb_set_blocksize+0xa5/0xe0
[ 251.818292][ T6580] get_tree_bdev+0x3f1/0x610
[ 251.822983][ T6580] ? gfs2_reconfigure+0xd30/0xd30
[ 251.828126][ T6580] gfs2_get_tree+0x4d/0x1e0
[ 251.832855][ T6580] vfs_get_tree+0x88/0x270
[ 251.837598][ T6580] do_new_mount+0x24a/0xa40
[ 251.843404][ T6580] __se_sys_mount+0x2e3/0x3d0
[ 251.848285][ T6580] ? __x64_sys_mount+0xc0/0xc0
[ 251.853059][ T6580] ? lockdep_hardirqs_on+0x94/0x140
[ 251.858699][ T6580] ? __x64_sys_mount+0x1c/0xc0
[ 251.863590][ T6580] do_syscall_64+0x4c/0xa0
[ 251.868659][ T6580] ? clear_bhb_loop+0x30/0x80
[ 251.873366][ T6580] ? clear_bhb_loop+0x30/0x80
[ 251.878326][ T6580] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 251.884717][ T6580] RIP: 0033:0x7f58b132260a
[ 251.889356][ T6580] 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
[ 251.910191][ T6580] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.919057][ T6580] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 251.927118][ T6580] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
[ 251.935192][ T6580] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 251.943707][ T6580] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 251.951991][ T6580] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 251.960243][ T6580]
[ 251.963446][ T6583] CPU: 0 PID: 6583 Comm: syz.3.422 Not tainted syzkaller #0
[ 251.963510][ T6580] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.971502][ T6583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 251.971513][ T6583] Call Trace:
[ 251.971528][ T6583]
[ 251.971536][ T6583] dump_stack_lvl+0x188/0x250
[ 251.985633][ T6580] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.996012][ T6583] ? show_regs_print_info+0x20/0x20
[ 251.996053][ T6583] ? load_image+0x400/0x400
[ 252.023694][ T6583] sysfs_create_dir_ns+0x26a/0x290
[ 252.029088][ T6583] ? sysfs_warn_dup+0xa0/0xa0
[ 252.034141][ T6583] ? do_raw_spin_unlock+0x11d/0x230
[ 252.039522][ T6583] kobject_add_internal+0x6e0/0xd90
[ 252.044846][ T6583] kobject_init_and_add+0x128/0x190
[ 252.050104][ T6583] ? lockdep_softirqs_off+0x430/0x430
[ 252.055861][ T6583] ? kobject_add+0x230/0x230
[ 252.060724][ T6583] ? __init_swait_queue_head+0xa5/0x150
[ 252.066566][ T6583] gfs2_sys_fs_add+0x24f/0x4b0
[ 252.071710][ T6583] ? gfs2_recover_set+0x240/0x240
[ 252.077272][ T6583] ? snprintf+0xe5/0x140
[ 252.081621][ T6583] ? __free_pages+0x95/0x1a0
[ 252.086608][ T6583] ? vscnprintf+0x80/0x80
[ 252.091334][ T6583] gfs2_fill_super+0x120f/0x1f00
[ 252.096414][ T6583] ? gfs2_reconfigure+0xd30/0xd30
[ 252.101805][ T6583] ? sb_set_blocksize+0xa5/0xe0
[ 252.107049][ T6583] get_tree_bdev+0x3f1/0x610
[ 252.111721][ T6583] ? gfs2_reconfigure+0xd30/0xd30
[ 252.117182][ T6583] gfs2_get_tree+0x4d/0x1e0
[ 252.122234][ T6583] vfs_get_tree+0x88/0x270
[ 252.126935][ T6583] do_new_mount+0x24a/0xa40
[ 252.131980][ T6583] __se_sys_mount+0x2e3/0x3d0
[ 252.136769][ T6583] ? __x64_sys_mount+0xc0/0xc0
[ 252.141809][ T6583] ? lockdep_hardirqs_on+0x94/0x140
[ 252.147421][ T6583] ? __x64_sys_mount+0x1c/0xc0
[ 252.152214][ T6583] do_syscall_64+0x4c/0xa0
[ 252.156956][ T6583] ? clear_bhb_loop+0x30/0x80
[ 252.162490][ T6583] ? clear_bhb_loop+0x30/0x80
[ 252.169626][ T6583] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.177305][ T6583] RIP: 0033:0x7f94881c160a
[ 252.182135][ T6583] 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
[ 252.202566][ T6583] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.211817][ T6583] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 252.220030][ T6583] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 252.228461][ T6583] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 252.237952][ T6583] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.246199][ T6583] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 252.254285][ T6583]
[ 252.259297][ T6583] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.272996][ T6583] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.283614][ T6585] loop2: detected capacity change from 0 to 32768
[ 252.307751][ T6582] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.315433][ T6582] CPU: 1 PID: 6582 Comm: syz.0.421 Not tainted syzkaller #0
[ 252.322921][ T6582] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 252.333614][ T6582] Call Trace:
[ 252.337071][ T6582]
[ 252.340029][ T6582] dump_stack_lvl+0x188/0x250
[ 252.344990][ T6582] ? show_regs_print_info+0x20/0x20
[ 252.350669][ T6582] ? load_image+0x400/0x400
[ 252.355907][ T6582] sysfs_create_dir_ns+0x26a/0x290
[ 252.362278][ T6582] ? sysfs_warn_dup+0xa0/0xa0
[ 252.367423][ T6582] ? do_raw_spin_unlock+0x11d/0x230
[ 252.372987][ T6582] kobject_add_internal+0x6e0/0xd90
[ 252.378304][ T6582] kobject_init_and_add+0x128/0x190
[ 252.384310][ T6582] ? lockdep_softirqs_off+0x430/0x430
[ 252.389961][ T6582] ? kobject_add+0x230/0x230
[ 252.395505][ T6582] ? __init_swait_queue_head+0xa5/0x150
[ 252.401704][ T6582] gfs2_sys_fs_add+0x24f/0x4b0
[ 252.407581][ T6582] ? gfs2_recover_set+0x240/0x240
[ 252.412811][ T6582] ? snprintf+0xe5/0x140
[ 252.417481][ T6582] ? __free_pages+0x95/0x1a0
[ 252.422364][ T6582] ? vscnprintf+0x80/0x80
[ 252.427174][ T6582] gfs2_fill_super+0x120f/0x1f00
[ 252.432453][ T6582] ? gfs2_reconfigure+0xd30/0xd30
[ 252.438249][ T6582] ? sb_set_blocksize+0xa5/0xe0
[ 252.443945][ T6582] get_tree_bdev+0x3f1/0x610
[ 252.448667][ T6582] ? gfs2_reconfigure+0xd30/0xd30
[ 252.454870][ T6582] gfs2_get_tree+0x4d/0x1e0
[ 252.459575][ T6582] vfs_get_tree+0x88/0x270
[ 252.464096][ T6582] do_new_mount+0x24a/0xa40
[ 252.468633][ T6582] __se_sys_mount+0x2e3/0x3d0
[ 252.473585][ T6582] ? __x64_sys_mount+0xc0/0xc0
[ 252.478669][ T6582] ? lockdep_hardirqs_on+0x94/0x140
[ 252.483965][ T6582] ? __x64_sys_mount+0x1c/0xc0
[ 252.489034][ T6582] do_syscall_64+0x4c/0xa0
[ 252.493746][ T6582] ? clear_bhb_loop+0x30/0x80
[ 252.499156][ T6582] ? clear_bhb_loop+0x30/0x80
[ 252.504624][ T6582] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.511107][ T6582] RIP: 0033:0x7f44434eb60a
[ 252.515639][ T6582] 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
[ 252.532464][ T6587] loop4: detected capacity change from 0 to 32768
[ 252.536804][ T6582] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.554422][ T6582] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 252.563075][ T6582] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 252.571693][ T6582] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
[ 252.580719][ T6582] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.588790][ T6582] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
[ 252.597145][ T6582]
[ 252.601530][ T6582] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.615932][ T6582] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.642102][ T6587] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.649748][ T6587] CPU: 1 PID: 6587 Comm: syz.4.424 Not tainted syzkaller #0
[ 252.657366][ T6587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 252.667522][ T6587] Call Trace:
[ 252.671063][ T6587]
[ 252.674285][ T6587] dump_stack_lvl+0x188/0x250
[ 252.679508][ T6587] ? show_regs_print_info+0x20/0x20
[ 252.684999][ T6587] ? load_image+0x400/0x400
[ 252.689608][ T6587] sysfs_create_dir_ns+0x26a/0x290
[ 252.695247][ T6587] ? sysfs_warn_dup+0xa0/0xa0
[ 252.700178][ T6587] ? do_raw_spin_unlock+0x11d/0x230
[ 252.705765][ T6587] kobject_add_internal+0x6e0/0xd90
[ 252.711083][ T6587] kobject_init_and_add+0x128/0x190
[ 252.716475][ T6587] ? lockdep_softirqs_off+0x430/0x430
[ 252.721970][ T6587] ? kobject_add+0x230/0x230
[ 252.727985][ T6587] ? __init_swait_queue_head+0xa5/0x150
[ 252.734413][ T6587] gfs2_sys_fs_add+0x24f/0x4b0
[ 252.739299][ T6587] ? gfs2_recover_set+0x240/0x240
[ 252.744635][ T6587] ? snprintf+0xe5/0x140
[ 252.749364][ T6587] ? __free_pages+0x95/0x1a0
[ 252.754518][ T6587] ? vscnprintf+0x80/0x80
[ 252.759327][ T6587] gfs2_fill_super+0x120f/0x1f00
[ 252.764394][ T6587] ? gfs2_reconfigure+0xd30/0xd30
[ 252.769809][ T6587] ? sb_set_blocksize+0xa5/0xe0
[ 252.774868][ T6587] get_tree_bdev+0x3f1/0x610
[ 252.781324][ T6587] ? gfs2_reconfigure+0xd30/0xd30
[ 252.786777][ T6587] gfs2_get_tree+0x4d/0x1e0
[ 252.791418][ T6587] vfs_get_tree+0x88/0x270
[ 252.796520][ T6587] do_new_mount+0x24a/0xa40
[ 252.801144][ T6587] __se_sys_mount+0x2e3/0x3d0
[ 252.805962][ T6587] ? __x64_sys_mount+0xc0/0xc0
[ 252.810929][ T6587] ? lockdep_hardirqs_on+0x94/0x140
[ 252.816440][ T6587] ? __x64_sys_mount+0x1c/0xc0
[ 252.821338][ T6587] do_syscall_64+0x4c/0xa0
[ 252.825954][ T6587] ? clear_bhb_loop+0x30/0x80
[ 252.831068][ T6587] ? clear_bhb_loop+0x30/0x80
[ 252.836826][ T6587] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.843792][ T6587] RIP: 0033:0x7fded93a760a
[ 252.848658][ T6587] 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
[ 252.869970][ T6587] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.878951][ T6587] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 252.886933][ T6587] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 252.895456][ T6587] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 252.903879][ T6587] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.912298][ T6587] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 252.920987][ T6587]
[ 252.925181][ T6587] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.932205][ T6585] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.939094][ T6587] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.946669][ T6585] CPU: 0 PID: 6585 Comm: syz.2.423 Not tainted syzkaller #0
[ 252.959538][ T4285] Bluetooth: hci5: command 0x0406 tx timeout
[ 252.962103][ T6585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 252.979602][ T6585] Call Trace:
[ 252.983178][ T6585]
[ 252.987102][ T6585] dump_stack_lvl+0x188/0x250
[ 252.993647][ T6585] ? show_regs_print_info+0x20/0x20
[ 253.000015][ T6585] ? load_image+0x400/0x400
[ 253.006128][ T6585] sysfs_create_dir_ns+0x26a/0x290
[ 253.011617][ T6585] ? sysfs_warn_dup+0xa0/0xa0
[ 253.016771][ T6585] ? do_raw_spin_unlock+0x11d/0x230
[ 253.022527][ T6585] kobject_add_internal+0x6e0/0xd90
[ 253.028800][ T6585] kobject_init_and_add+0x128/0x190
[ 253.036762][ T6585] ? lockdep_softirqs_off+0x430/0x430
[ 253.043540][ T6585] ? kobject_add+0x230/0x230
[ 253.050166][ T6585] ? __init_swait_queue_head+0xa5/0x150
[ 253.059428][ T6585] gfs2_sys_fs_add+0x24f/0x4b0
[ 253.067735][ T6585] ? gfs2_recover_set+0x240/0x240
[ 253.075799][ T6585] ? snprintf+0xe5/0x140
[ 253.081879][ T6585] ? __free_pages+0x95/0x1a0
[ 253.088140][ T6585] ? vscnprintf+0x80/0x80
[ 253.094581][ T6585] gfs2_fill_super+0x120f/0x1f00
[ 253.100640][ T6585] ? gfs2_reconfigure+0xd30/0xd30
[ 253.107384][ T6585] ? sb_set_blocksize+0xa5/0xe0
[ 253.112618][ T6585] get_tree_bdev+0x3f1/0x610
[ 253.117924][ T6585] ? gfs2_reconfigure+0xd30/0xd30
[ 253.123364][ T6585] gfs2_get_tree+0x4d/0x1e0
[ 253.128172][ T6585] vfs_get_tree+0x88/0x270
[ 253.133576][ T6585] do_new_mount+0x24a/0xa40
[ 253.138636][ T6585] __se_sys_mount+0x2e3/0x3d0
[ 253.143439][ T6585] ? __x64_sys_mount+0xc0/0xc0
[ 253.148947][ T6585] ? lockdep_hardirqs_on+0x94/0x140
[ 253.154892][ T6585] ? __x64_sys_mount+0x1c/0xc0
[ 253.160214][ T6585] do_syscall_64+0x4c/0xa0
[ 253.165584][ T6585] ? clear_bhb_loop+0x30/0x80
[ 253.170875][ T6585] ? clear_bhb_loop+0x30/0x80
[ 253.175933][ T6585] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 253.181856][ T6585] RIP: 0033:0x7f95167b260a
[ 253.187129][ 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
[ 253.210604][ T6585] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.220277][ T6585] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 253.229760][ T6585] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
[ 253.238545][ T6585] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 253.247740][ T6585] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 253.257390][ T6585] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
[ 253.269577][ T6585]
[ 253.274752][ T6585] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.290296][ T6585] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 253.688575][ T6597] loop4: detected capacity change from 0 to 32768
[ 253.783723][ T6596] loop3: detected capacity change from 0 to 32768
[ 253.789455][ T6597] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.799091][ T6597] CPU: 0 PID: 6597 Comm: syz.4.427 Not tainted syzkaller #0
[ 253.806681][ T6597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 253.817133][ T6597] Call Trace:
[ 253.820516][ T6597]
[ 253.823824][ T6597] dump_stack_lvl+0x188/0x250
[ 253.829081][ T6597] ? show_regs_print_info+0x20/0x20
[ 253.834719][ T6597] ? load_image+0x400/0x400
[ 253.839558][ T6597] sysfs_create_dir_ns+0x26a/0x290
[ 253.845087][ T6597] ? sysfs_warn_dup+0xa0/0xa0
[ 253.852735][ T6597] ? do_raw_spin_unlock+0x11d/0x230
[ 253.858589][ T6597] kobject_add_internal+0x6e0/0xd90
[ 253.864531][ T6597] kobject_init_and_add+0x128/0x190
[ 253.869855][ T6597] ? lockdep_softirqs_off+0x430/0x430
[ 253.875360][ T6597] ? kobject_add+0x230/0x230
[ 253.880347][ T6597] ? __init_swait_queue_head+0xa5/0x150
[ 253.886489][ T6597] gfs2_sys_fs_add+0x24f/0x4b0
[ 253.891653][ T6597] ? gfs2_recover_set+0x240/0x240
[ 253.897096][ T6597] ? snprintf+0xe5/0x140
[ 253.901718][ T6597] ? __free_pages+0x95/0x1a0
[ 253.906417][ T6597] ? vscnprintf+0x80/0x80
[ 253.910902][ T6597] gfs2_fill_super+0x120f/0x1f00
[ 253.917204][ T6597] ? gfs2_reconfigure+0xd30/0xd30
[ 253.922502][ T6597] ? sb_set_blocksize+0xa5/0xe0
[ 253.927484][ T6597] get_tree_bdev+0x3f1/0x610
[ 253.932454][ T6597] ? gfs2_reconfigure+0xd30/0xd30
[ 253.937865][ T6597] gfs2_get_tree+0x4d/0x1e0
[ 253.942595][ T6597] vfs_get_tree+0x88/0x270
[ 253.947124][ T6597] do_new_mount+0x24a/0xa40
[ 253.951714][ T6597] __se_sys_mount+0x2e3/0x3d0
[ 253.956766][ T6597] ? __x64_sys_mount+0xc0/0xc0
[ 253.961734][ T6597] ? lockdep_hardirqs_on+0x94/0x140
[ 253.967104][ T6597] ? __x64_sys_mount+0x1c/0xc0
[ 253.971901][ T6597] do_syscall_64+0x4c/0xa0
[ 253.976433][ T6597] ? clear_bhb_loop+0x30/0x80
[ 253.981321][ T6597] ? clear_bhb_loop+0x30/0x80
[ 253.986981][ T6597] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 253.993204][ T6597] RIP: 0033:0x7fded93a760a
[ 253.998088][ T6597] 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
[ 254.018539][ T6597] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.027405][ T6597] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 254.035673][ T6597] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 254.044185][ T6597] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 254.052396][ T6597] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 254.061019][ T6597] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 254.066360][ T6599] loop2: detected capacity change from 0 to 32768
[ 254.070192][ T6597]
[ 254.071339][ T6597] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.094850][ T6597] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.131067][ T6596] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.138917][ T6596] CPU: 1 PID: 6596 Comm: syz.3.428 Not tainted syzkaller #0
[ 254.146404][ T6596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 254.156663][ T6596] Call Trace:
[ 254.160100][ T6596]
[ 254.163047][ T6596] dump_stack_lvl+0x188/0x250
[ 254.167862][ T6596] ? show_regs_print_info+0x20/0x20
[ 254.174133][ T6596] ? load_image+0x400/0x400
[ 254.178844][ T6596] sysfs_create_dir_ns+0x26a/0x290
[ 254.184085][ T6596] ? sysfs_warn_dup+0xa0/0xa0
[ 254.189137][ T6596] ? do_raw_spin_unlock+0x11d/0x230
[ 254.194360][ T6596] kobject_add_internal+0x6e0/0xd90
[ 254.200532][ T6596] kobject_init_and_add+0x128/0x190
[ 254.206282][ T6596] ? lockdep_softirqs_off+0x430/0x430
[ 254.212488][ T6596] ? kobject_add+0x230/0x230
[ 254.217542][ T6596] ? __init_swait_queue_head+0xa5/0x150
[ 254.223219][ T6596] gfs2_sys_fs_add+0x24f/0x4b0
[ 254.228230][ T6596] ? gfs2_recover_set+0x240/0x240
[ 254.233373][ T6596] ? snprintf+0xe5/0x140
[ 254.237808][ T6596] ? __free_pages+0x95/0x1a0
[ 254.242701][ T6596] ? vscnprintf+0x80/0x80
[ 254.247245][ T6596] gfs2_fill_super+0x120f/0x1f00
[ 254.252513][ T6596] ? gfs2_reconfigure+0xd30/0xd30
[ 254.257746][ T6596] ? sb_set_blocksize+0xa5/0xe0
[ 254.262709][ T6596] get_tree_bdev+0x3f1/0x610
[ 254.267506][ T6596] ? gfs2_reconfigure+0xd30/0xd30
[ 254.272654][ T6596] gfs2_get_tree+0x4d/0x1e0
[ 254.277179][ T6596] vfs_get_tree+0x88/0x270
[ 254.281805][ T6596] do_new_mount+0x24a/0xa40
[ 254.286439][ T6596] __se_sys_mount+0x2e3/0x3d0
[ 254.291415][ T6596] ? __x64_sys_mount+0xc0/0xc0
[ 254.296225][ T6596] ? lockdep_hardirqs_on+0x94/0x140
[ 254.301538][ T6596] ? __x64_sys_mount+0x1c/0xc0
[ 254.306551][ T6596] do_syscall_64+0x4c/0xa0
[ 254.310998][ T6596] ? clear_bhb_loop+0x30/0x80
[ 254.315782][ T6596] ? clear_bhb_loop+0x30/0x80
[ 254.320649][ T6596] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 254.326684][ T6596] RIP: 0033:0x7f94881c160a
[ 254.332286][ 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
[ 254.354758][ T6596] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.364993][ T6596] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 254.375630][ T6596] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 254.384836][ T6596] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 254.395253][ T6596] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 254.403873][ T6596] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 254.412853][ T6596]
[ 254.417744][ T6596] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.432682][ T6596] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.438489][ T6599] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.447449][ T6599] CPU: 0 PID: 6599 Comm: syz.2.429 Not tainted syzkaller #0
[ 254.455472][ T6599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 254.465719][ T6599] Call Trace:
[ 254.470053][ T6599]
[ 254.473350][ T6599] dump_stack_lvl+0x188/0x250
[ 254.478298][ T6599] ? show_regs_print_info+0x20/0x20
[ 254.483596][ T6599] ? load_image+0x400/0x400
[ 254.488319][ T6599] sysfs_create_dir_ns+0x26a/0x290
[ 254.493706][ T6599] ? sysfs_warn_dup+0xa0/0xa0
[ 254.498479][ T6599] ? do_raw_spin_unlock+0x11d/0x230
[ 254.503948][ T6599] kobject_add_internal+0x6e0/0xd90
[ 254.509278][ T6599] kobject_init_and_add+0x128/0x190
[ 254.514797][ T6599] ? lockdep_softirqs_off+0x430/0x430
[ 254.520629][ T6599] ? kobject_add+0x230/0x230
[ 254.525513][ T6599] ? __init_swait_queue_head+0xa5/0x150
[ 254.531264][ T6599] gfs2_sys_fs_add+0x24f/0x4b0
[ 254.536062][ T6599] ? gfs2_recover_set+0x240/0x240
[ 254.541646][ T6599] ? snprintf+0xe5/0x140
[ 254.546075][ T6599] ? __free_pages+0x95/0x1a0
[ 254.551030][ T6599] ? vscnprintf+0x80/0x80
[ 254.556007][ T6599] gfs2_fill_super+0x120f/0x1f00
[ 254.561600][ T6599] ? gfs2_reconfigure+0xd30/0xd30
[ 254.567068][ T6599] ? sb_set_blocksize+0xa5/0xe0
[ 254.572289][ T6599] get_tree_bdev+0x3f1/0x610
[ 254.577136][ T6599] ? gfs2_reconfigure+0xd30/0xd30
[ 254.582455][ T6599] gfs2_get_tree+0x4d/0x1e0
[ 254.587266][ T6599] vfs_get_tree+0x88/0x270
[ 254.591713][ T6599] do_new_mount+0x24a/0xa40
[ 254.596522][ T6599] __se_sys_mount+0x2e3/0x3d0
[ 254.601387][ T6599] ? __x64_sys_mount+0xc0/0xc0
[ 254.606789][ T6599] ? lockdep_hardirqs_on+0x94/0x140
[ 254.612661][ T6599] ? __x64_sys_mount+0x1c/0xc0
[ 254.617751][ T6599] do_syscall_64+0x4c/0xa0
[ 254.622673][ T6599] ? clear_bhb_loop+0x30/0x80
[ 254.627634][ T6599] ? clear_bhb_loop+0x30/0x80
[ 254.632824][ T6599] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 254.639404][ T6599] RIP: 0033:0x7f95167b260a
[ 254.644538][ 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
[ 254.665004][ T6599] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.674108][ T6599] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 254.683004][ T6599] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
[ 254.692186][ T6599] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 254.700686][ T6599] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 254.709372][ T6599] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
[ 254.717923][ T6599]
[ 254.722372][ T6599] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.736707][ T6599] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.756804][ T6592] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.768259][ T6589] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.792292][ T6592] CPU: 1 PID: 6592 Comm: syz.5.426 Not tainted syzkaller #0
[ 254.799903][ T6592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 254.810236][ T6592] Call Trace:
[ 254.813535][ T6592]
[ 254.816568][ T6592] dump_stack_lvl+0x188/0x250
[ 254.821269][ T6592] ? show_regs_print_info+0x20/0x20
[ 254.827017][ T6592] ? load_image+0x400/0x400
[ 254.832535][ T6592] sysfs_create_dir_ns+0x26a/0x290
[ 254.837739][ T6592] ? sysfs_warn_dup+0xa0/0xa0
[ 254.842803][ T6592] ? do_raw_spin_unlock+0x11d/0x230
[ 254.848607][ T6592] kobject_add_internal+0x6e0/0xd90
[ 254.854234][ T6592] kobject_init_and_add+0x128/0x190
[ 254.860498][ T6592] ? lockdep_softirqs_off+0x430/0x430
[ 254.866674][ T6592] ? kobject_add+0x230/0x230
[ 254.872031][ T6592] ? __init_swait_queue_head+0xa5/0x150
[ 254.877619][ T6592] gfs2_sys_fs_add+0x24f/0x4b0
[ 254.882760][ T6592] ? gfs2_recover_set+0x240/0x240
[ 254.887974][ T6592] ? snprintf+0xe5/0x140
[ 254.892566][ T6592] ? __free_pages+0x95/0x1a0
[ 254.897817][ T6592] ? vscnprintf+0x80/0x80
[ 254.902423][ T6592] gfs2_fill_super+0x120f/0x1f00
[ 254.907511][ T6592] ? gfs2_reconfigure+0xd30/0xd30
[ 254.912592][ T6592] ? sb_set_blocksize+0xa5/0xe0
[ 254.917811][ T6592] get_tree_bdev+0x3f1/0x610
[ 254.922960][ T6592] ? gfs2_reconfigure+0xd30/0xd30
[ 254.928535][ T6592] gfs2_get_tree+0x4d/0x1e0
[ 254.933322][ T6592] vfs_get_tree+0x88/0x270
[ 254.938302][ T6592] do_new_mount+0x24a/0xa40
[ 254.943060][ T6592] __se_sys_mount+0x2e3/0x3d0
[ 254.948718][ T6592] ? __x64_sys_mount+0xc0/0xc0
[ 254.955327][ T6592] ? lockdep_hardirqs_on+0x94/0x140
[ 254.962133][ T6592] ? __x64_sys_mount+0x1c/0xc0
[ 254.967764][ T6592] do_syscall_64+0x4c/0xa0
[ 254.973592][ T6592] ? clear_bhb_loop+0x30/0x80
[ 254.979148][ T6592] ? clear_bhb_loop+0x30/0x80
[ 254.984442][ T6592] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 254.990914][ T6592] RIP: 0033:0x7f58b132260a
[ 254.995709][ T6592] 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
[ 255.016378][ T6592] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.025653][ T6592] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 255.033870][ T6592] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
[ 255.041955][ T6592] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 255.050486][ T6592] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 255.059339][ T6592] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 255.068035][ T6592]
[ 255.098133][ T6589] CPU: 0 PID: 6589 Comm: syz.0.425 Not tainted syzkaller #0
[ 255.105995][ T6589] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 255.116520][ T6589] Call Trace:
[ 255.119903][ T6589]
[ 255.122949][ T6589] dump_stack_lvl+0x188/0x250
[ 255.129671][ T6589] ? show_regs_print_info+0x20/0x20
[ 255.135495][ T6589] ? load_image+0x400/0x400
[ 255.140833][ T6589] sysfs_create_dir_ns+0x26a/0x290
[ 255.147095][ T6589] ? sysfs_warn_dup+0xa0/0xa0
[ 255.152182][ T6589] ? do_raw_spin_unlock+0x11d/0x230
[ 255.158421][ T6589] kobject_add_internal+0x6e0/0xd90
[ 255.166321][ T6589] kobject_init_and_add+0x128/0x190
[ 255.171645][ T6589] ? lockdep_softirqs_off+0x430/0x430
[ 255.177201][ T6589] ? kobject_add+0x230/0x230
[ 255.182240][ T6589] ? __init_swait_queue_head+0xa5/0x150
[ 255.188354][ T6589] gfs2_sys_fs_add+0x24f/0x4b0
[ 255.193676][ T6589] ? gfs2_recover_set+0x240/0x240
[ 255.199609][ T6589] ? snprintf+0xe5/0x140
[ 255.204206][ T6589] ? __free_pages+0x95/0x1a0
[ 255.209100][ T6589] ? vscnprintf+0x80/0x80
[ 255.213977][ T6589] gfs2_fill_super+0x120f/0x1f00
[ 255.219771][ T6589] ? gfs2_reconfigure+0xd30/0xd30
[ 255.224238][ T6592] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.225217][ T6589] ? sb_set_blocksize+0xa5/0xe0
[ 255.239694][ T6592] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.244564][ T6589] get_tree_bdev+0x3f1/0x610
[ 255.256291][ T6589] ? gfs2_reconfigure+0xd30/0xd30
[ 255.261426][ T6589] gfs2_get_tree+0x4d/0x1e0
[ 255.266775][ T6589] vfs_get_tree+0x88/0x270
[ 255.271589][ T6589] do_new_mount+0x24a/0xa40
[ 255.276393][ T6589] __se_sys_mount+0x2e3/0x3d0
[ 255.281941][ T6589] ? __x64_sys_mount+0xc0/0xc0
[ 255.287081][ T6589] ? lockdep_hardirqs_on+0x94/0x140
[ 255.292395][ T6589] ? __x64_sys_mount+0x1c/0xc0
[ 255.297446][ T6589] do_syscall_64+0x4c/0xa0
[ 255.302059][ T6589] ? clear_bhb_loop+0x30/0x80
[ 255.307214][ T6589] ? clear_bhb_loop+0x30/0x80
[ 255.312011][ T6589] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.318712][ T6589] RIP: 0033:0x7f44434eb60a
[ 255.323234][ T6589] 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
[ 255.344235][ T6589] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.353575][ T6589] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 255.362994][ T6589] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 255.371226][ T6589] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
[ 255.380020][ T6589] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 255.388939][ T6589] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
2026/03/31 16:50:39 executed programs: 424
[ 255.397916][ T6589]
[ 255.468343][ T6589] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.749592][ T6607] set_capacity_and_notify: 2 callbacks suppressed
[ 255.749607][ T6607] loop3: detected capacity change from 0 to 32768
[ 255.801412][ T6609] loop2: detected capacity change from 0 to 32768
[ 255.808441][ T6589] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.814037][ T1427] ieee802154 phy0 wpan0: encryption failed: -22
[ 255.822008][ T1427] ieee802154 phy1 wpan1: encryption failed: -22
[ 255.877075][ T6607] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.881599][ T6609] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.885479][ T6607] CPU: 1 PID: 6607 Comm: syz.3.432 Not tainted syzkaller #0
[ 255.901031][ T6607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 255.912108][ T6607] Call Trace:
[ 255.915495][ T6607]
[ 255.918507][ T6607] dump_stack_lvl+0x188/0x250
[ 255.923195][ T6607] ? show_regs_print_info+0x20/0x20
[ 255.928561][ T6607] ? load_image+0x400/0x400
[ 255.933184][ T6607] sysfs_create_dir_ns+0x26a/0x290
[ 255.938384][ T6607] ? sysfs_warn_dup+0xa0/0xa0
[ 255.943065][ T6607] ? do_raw_spin_unlock+0x11d/0x230
[ 255.948261][ T6607] kobject_add_internal+0x6e0/0xd90
[ 255.953473][ T6607] kobject_init_and_add+0x128/0x190
[ 255.959158][ T6607] ? lockdep_softirqs_off+0x430/0x430
[ 255.964728][ T6607] ? kobject_add+0x230/0x230
[ 255.970044][ T6607] ? __init_swait_queue_head+0xa5/0x150
[ 255.975954][ T6607] gfs2_sys_fs_add+0x24f/0x4b0
[ 255.980752][ T6607] ? gfs2_recover_set+0x240/0x240
[ 255.986129][ T6607] ? snprintf+0xe5/0x140
[ 255.991180][ T6607] ? __free_pages+0x95/0x1a0
[ 255.996333][ T6607] ? vscnprintf+0x80/0x80
[ 256.000954][ T6607] gfs2_fill_super+0x120f/0x1f00
[ 256.006092][ T6607] ? gfs2_reconfigure+0xd30/0xd30
[ 256.011249][ T6607] ? sb_set_blocksize+0xa5/0xe0
[ 256.016363][ T6607] get_tree_bdev+0x3f1/0x610
[ 256.021502][ T6607] ? gfs2_reconfigure+0xd30/0xd30
[ 256.026630][ T6607] gfs2_get_tree+0x4d/0x1e0
[ 256.031252][ T6607] vfs_get_tree+0x88/0x270
[ 256.035767][ T6607] do_new_mount+0x24a/0xa40
[ 256.040646][ T6607] __se_sys_mount+0x2e3/0x3d0
[ 256.046160][ T6607] ? __x64_sys_mount+0xc0/0xc0
[ 256.051227][ T6607] ? lockdep_hardirqs_on+0x94/0x140
[ 256.056988][ T6607] ? __x64_sys_mount+0x1c/0xc0
[ 256.062326][ T6607] do_syscall_64+0x4c/0xa0
[ 256.066755][ T6607] ? clear_bhb_loop+0x30/0x80
[ 256.071556][ T6607] ? clear_bhb_loop+0x30/0x80
[ 256.076861][ T6607] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 256.083539][ T6607] RIP: 0033:0x7f94881c160a
[ 256.088668][ T6607] 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
[ 256.109311][ T6607] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.117737][ T6607] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 256.125892][ T6607] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 256.134592][ T6607] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 256.143192][ T6607] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 256.151987][ T6607] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 256.160678][ T6607]
[ 256.163781][ T6609] CPU: 0 PID: 6609 Comm: syz.2.433 Not tainted syzkaller #0
[ 256.164990][ T6607] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.171528][ T6609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 256.171546][ T6609] Call Trace:
[ 256.171555][ T6609]
[ 256.171564][ T6609] dump_stack_lvl+0x188/0x250
[ 256.171590][ T6609] ? show_regs_print_info+0x20/0x20
[ 256.187590][ T6607] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.199183][ T6609] ? load_image+0x400/0x400
[ 256.199222][ T6609] sysfs_create_dir_ns+0x26a/0x290
[ 256.199244][ T6609] ? sysfs_warn_dup+0xa0/0xa0
[ 256.199260][ T6609] ? do_raw_spin_unlock+0x11d/0x230
[ 256.199280][ T6609] kobject_add_internal+0x6e0/0xd90
[ 256.199306][ T6609] kobject_init_and_add+0x128/0x190
[ 256.199322][ T6609] ? lockdep_softirqs_off+0x430/0x430
[ 256.199346][ T6609] ? kobject_add+0x230/0x230
[ 256.199368][ T6609] ? __init_swait_queue_head+0xa5/0x150
[ 256.199394][ T6609] gfs2_sys_fs_add+0x24f/0x4b0
[ 256.199415][ T6609] ? gfs2_recover_set+0x240/0x240
[ 256.199434][ T6609] ? snprintf+0xe5/0x140
[ 256.199449][ T6609] ? __free_pages+0x95/0x1a0
[ 256.199471][ T6609] ? vscnprintf+0x80/0x80
[ 256.199498][ T6609] gfs2_fill_super+0x120f/0x1f00
[ 256.199531][ T6609] ? gfs2_reconfigure+0xd30/0xd30
[ 256.199566][ T6609] ? sb_set_blocksize+0xa5/0xe0
[ 256.199586][ T6609] get_tree_bdev+0x3f1/0x610
[ 256.199607][ T6609] ? gfs2_reconfigure+0xd30/0xd30
[ 256.199627][ T6609] gfs2_get_tree+0x4d/0x1e0
[ 256.199649][ T6609] vfs_get_tree+0x88/0x270
[ 256.199669][ T6609] do_new_mount+0x24a/0xa40
[ 256.199695][ T6609] __se_sys_mount+0x2e3/0x3d0
[ 256.199719][ T6609] ? __x64_sys_mount+0xc0/0xc0
[ 256.199741][ T6609] ? lockdep_hardirqs_on+0x94/0x140
[ 256.199758][ T6609] ? __x64_sys_mount+0x1c/0xc0
[ 256.199779][ T6609] do_syscall_64+0x4c/0xa0
[ 256.199794][ T6609] ? clear_bhb_loop+0x30/0x80
[ 256.199810][ T6609] ? clear_bhb_loop+0x30/0x80
[ 256.199826][ T6609] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 256.199848][ T6609] RIP: 0033:0x7f95167b260a
[ 256.199867][ T6609] 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
[ 256.199881][ T6609] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.199902][ T6609] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 256.199915][ T6609] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
[ 256.199928][ T6609] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 256.199939][ T6609] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 256.199950][ T6609] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
[ 256.455552][ T6609]
[ 256.459721][ T6609] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.473515][ T6609] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.637030][ T6612] loop3: detected capacity change from 0 to 32768
[ 256.741722][ T6612] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.749569][ T6612] CPU: 0 PID: 6612 Comm: syz.3.434 Not tainted syzkaller #0
[ 256.757424][ T6612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 256.769458][ T6612] Call Trace:
[ 256.773017][ T6612]
[ 256.775980][ T6612] dump_stack_lvl+0x188/0x250
[ 256.781086][ T6612] ? show_regs_print_info+0x20/0x20
[ 256.786569][ T6612] ? load_image+0x400/0x400
[ 256.791202][ T6612] sysfs_create_dir_ns+0x26a/0x290
[ 256.796511][ T6612] ? sysfs_warn_dup+0xa0/0xa0
[ 256.801222][ T6612] ? do_raw_spin_unlock+0x11d/0x230
[ 256.807040][ T6612] kobject_add_internal+0x6e0/0xd90
[ 256.812623][ T6612] kobject_init_and_add+0x128/0x190
[ 256.818533][ T6612] ? lockdep_softirqs_off+0x430/0x430
[ 256.824096][ T6612] ? kobject_add+0x230/0x230
[ 256.829002][ T6612] ? __init_swait_queue_head+0xa5/0x150
[ 256.834965][ T6612] gfs2_sys_fs_add+0x24f/0x4b0
[ 256.839847][ T6612] ? gfs2_recover_set+0x240/0x240
[ 256.845827][ T6612] ? snprintf+0xe5/0x140
[ 256.850284][ T6612] ? __free_pages+0x95/0x1a0
[ 256.855084][ T6612] ? vscnprintf+0x80/0x80
[ 256.861102][ T6612] gfs2_fill_super+0x120f/0x1f00
[ 256.866430][ T6612] ? gfs2_reconfigure+0xd30/0xd30
[ 256.872111][ T6612] ? sb_set_blocksize+0xa5/0xe0
[ 256.877414][ T6612] get_tree_bdev+0x3f1/0x610
[ 256.878618][ T6613] loop0: detected capacity change from 0 to 32768
[ 256.882110][ T6612] ? gfs2_reconfigure+0xd30/0xd30
[ 256.893798][ T6612] gfs2_get_tree+0x4d/0x1e0
[ 256.898768][ T6612] vfs_get_tree+0x88/0x270
[ 256.903601][ T6612] do_new_mount+0x24a/0xa40
[ 256.908494][ T6612] __se_sys_mount+0x2e3/0x3d0
[ 256.913467][ T6612] ? __x64_sys_mount+0xc0/0xc0
[ 256.918533][ T6612] ? lockdep_hardirqs_on+0x94/0x140
[ 256.924012][ T6612] ? __x64_sys_mount+0x1c/0xc0
[ 256.928979][ T6612] do_syscall_64+0x4c/0xa0
[ 256.933712][ T6612] ? clear_bhb_loop+0x30/0x80
[ 256.938427][ T6612] ? clear_bhb_loop+0x30/0x80
[ 256.943295][ T6612] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 256.949297][ T6612] RIP: 0033:0x7f94881c160a
[ 256.954012][ T6612] 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
[ 256.974164][ T6612] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.983569][ T6612] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 256.991821][ T6612] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 257.000186][ T6612] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 257.008357][ T6612] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 257.016526][ T6612] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 257.024732][ T6612]
[ 257.029024][ T6612] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.042716][ T6612] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.100176][ T6613] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.107884][ T6613] CPU: 1 PID: 6613 Comm: syz.0.435 Not tainted syzkaller #0
[ 257.115268][ T6613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 257.127068][ T6613] Call Trace:
[ 257.130540][ T6613]
[ 257.133673][ T6613] dump_stack_lvl+0x188/0x250
[ 257.138786][ T6613] ? show_regs_print_info+0x20/0x20
[ 257.144101][ T6613] ? load_image+0x400/0x400
[ 257.148754][ T6613] sysfs_create_dir_ns+0x26a/0x290
[ 257.154538][ T6613] ? sysfs_warn_dup+0xa0/0xa0
[ 257.159377][ T6613] ? do_raw_spin_unlock+0x11d/0x230
[ 257.164957][ T6613] kobject_add_internal+0x6e0/0xd90
[ 257.170680][ T6613] kobject_init_and_add+0x128/0x190
[ 257.176346][ T6613] ? lockdep_softirqs_off+0x430/0x430
[ 257.181917][ T6613] ? kobject_add+0x230/0x230
[ 257.187015][ T6613] ? __init_swait_queue_head+0xa5/0x150
[ 257.192763][ T6613] gfs2_sys_fs_add+0x24f/0x4b0
[ 257.197787][ T6613] ? gfs2_recover_set+0x240/0x240
[ 257.203149][ T6613] ? snprintf+0xe5/0x140
[ 257.208022][ T6613] ? __free_pages+0x95/0x1a0
[ 257.212717][ T6613] ? vscnprintf+0x80/0x80
[ 257.217084][ T6613] gfs2_fill_super+0x120f/0x1f00
[ 257.222230][ T6613] ? gfs2_reconfigure+0xd30/0xd30
[ 257.228083][ T6613] ? sb_set_blocksize+0xa5/0xe0
[ 257.233317][ T6613] get_tree_bdev+0x3f1/0x610
[ 257.238327][ T6613] ? gfs2_reconfigure+0xd30/0xd30
[ 257.243480][ T6613] gfs2_get_tree+0x4d/0x1e0
[ 257.248097][ T6613] vfs_get_tree+0x88/0x270
[ 257.252601][ T6613] do_new_mount+0x24a/0xa40
[ 257.258197][ T6613] __se_sys_mount+0x2e3/0x3d0
[ 257.263175][ T6613] ? __x64_sys_mount+0xc0/0xc0
[ 257.268416][ T6613] ? lockdep_hardirqs_on+0x94/0x140
[ 257.273629][ T6613] ? __x64_sys_mount+0x1c/0xc0
[ 257.278493][ T6613] do_syscall_64+0x4c/0xa0
[ 257.283100][ T6613] ? clear_bhb_loop+0x30/0x80
[ 257.287870][ T6613] ? clear_bhb_loop+0x30/0x80
[ 257.292560][ T6613] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.299320][ T6613] RIP: 0033:0x7f44434eb60a
[ 257.303837][ T6613] 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
[ 257.324145][ T6613] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.332577][ T6613] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 257.334428][ T6615] loop2: detected capacity change from 0 to 32768
[ 257.340907][ T6613] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 257.340928][ T6613] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
[ 257.340938][ T6613] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 257.340948][ T6613] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
[ 257.340973][ T6613]
[ 257.385428][ T6613] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.399044][ T6613] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.479892][ T6615] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.487851][ T6615] CPU: 0 PID: 6615 Comm: syz.2.436 Not tainted syzkaller #0
[ 257.495854][ T6615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 257.506545][ T6615] Call Trace:
[ 257.509840][ T6615]
[ 257.512907][ T6615] dump_stack_lvl+0x188/0x250
[ 257.517887][ T6615] ? show_regs_print_info+0x20/0x20
[ 257.523284][ T6615] ? load_image+0x400/0x400
[ 257.528173][ T6615] sysfs_create_dir_ns+0x26a/0x290
[ 257.534051][ T6615] ? sysfs_warn_dup+0xa0/0xa0
[ 257.538943][ T6615] ? do_raw_spin_unlock+0x11d/0x230
[ 257.544339][ T6615] kobject_add_internal+0x6e0/0xd90
[ 257.549880][ T6615] kobject_init_and_add+0x128/0x190
[ 257.556131][ T6615] ? lockdep_softirqs_off+0x430/0x430
[ 257.561978][ T6615] ? kobject_add+0x230/0x230
[ 257.567125][ T6615] ? __init_swait_queue_head+0xa5/0x150
[ 257.573873][ T6615] gfs2_sys_fs_add+0x24f/0x4b0
[ 257.579237][ T6615] ? gfs2_recover_set+0x240/0x240
[ 257.584396][ T6615] ? snprintf+0xe5/0x140
[ 257.588726][ T6615] ? __free_pages+0x95/0x1a0
[ 257.593578][ T6615] ? vscnprintf+0x80/0x80
[ 257.598032][ T6615] gfs2_fill_super+0x120f/0x1f00
[ 257.603180][ T6615] ? gfs2_reconfigure+0xd30/0xd30
[ 257.608273][ T6615] ? sb_set_blocksize+0xa5/0xe0
[ 257.613164][ T6615] get_tree_bdev+0x3f1/0x610
[ 257.618067][ T6615] ? gfs2_reconfigure+0xd30/0xd30
[ 257.623292][ T6615] gfs2_get_tree+0x4d/0x1e0
[ 257.627995][ T6615] vfs_get_tree+0x88/0x270
[ 257.632707][ T6615] do_new_mount+0x24a/0xa40
[ 257.637321][ T6615] __se_sys_mount+0x2e3/0x3d0
[ 257.642119][ T6615] ? __x64_sys_mount+0xc0/0xc0
[ 257.647514][ T6615] ? lockdep_hardirqs_on+0x94/0x140
[ 257.653350][ T6615] ? __x64_sys_mount+0x1c/0xc0
[ 257.658567][ T6615] do_syscall_64+0x4c/0xa0
[ 257.663006][ T6615] ? clear_bhb_loop+0x30/0x80
[ 257.667993][ T6615] ? clear_bhb_loop+0x30/0x80
[ 257.673045][ T6615] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.680054][ T6615] RIP: 0033:0x7f95167b260a
[ 257.684891][ T6615] 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
[ 257.705413][ T6615] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.713944][ T6615] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 257.722018][ T6615] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
[ 257.730533][ T6615] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 257.738786][ T6615] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 257.746942][ T6615] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
[ 257.755303][ T6615]
[ 257.759718][ T6615] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.774383][ T6615] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.506989][ T6621] loop3: detected capacity change from 0 to 32768
[ 258.707783][ T6621] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.716714][ T6621] CPU: 1 PID: 6621 Comm: syz.3.439 Not tainted syzkaller #0
[ 258.724449][ T6621] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 258.735314][ T6621] Call Trace:
[ 258.738610][ T6621]
[ 258.741728][ T6621] dump_stack_lvl+0x188/0x250
[ 258.746607][ T6621] ? show_regs_print_info+0x20/0x20
[ 258.751838][ T6621] ? load_image+0x400/0x400
[ 258.756687][ T6621] sysfs_create_dir_ns+0x26a/0x290
[ 258.761935][ T6621] ? sysfs_warn_dup+0xa0/0xa0
[ 258.766735][ T6621] ? do_raw_spin_unlock+0x11d/0x230
[ 258.772042][ T6621] kobject_add_internal+0x6e0/0xd90
[ 258.777289][ T6621] kobject_init_and_add+0x128/0x190
[ 258.782695][ T6621] ? lockdep_softirqs_off+0x430/0x430
[ 258.788361][ T6621] ? kobject_add+0x230/0x230
[ 258.793267][ T6621] ? __init_swait_queue_head+0xa5/0x150
[ 258.799182][ T6621] gfs2_sys_fs_add+0x24f/0x4b0
[ 258.804222][ T6621] ? gfs2_recover_set+0x240/0x240
[ 258.810026][ T6621] ? snprintf+0xe5/0x140
[ 258.814382][ T6621] ? __free_pages+0x95/0x1a0
[ 258.819097][ T6621] ? vscnprintf+0x80/0x80
[ 258.823776][ T6621] gfs2_fill_super+0x120f/0x1f00
[ 258.828958][ T6621] ? gfs2_reconfigure+0xd30/0xd30
[ 258.834196][ T6621] ? sb_set_blocksize+0xa5/0xe0
[ 258.839157][ T6621] get_tree_bdev+0x3f1/0x610
[ 258.844039][ T6621] ? gfs2_reconfigure+0xd30/0xd30
[ 258.849264][ T6621] gfs2_get_tree+0x4d/0x1e0
[ 258.854055][ T6621] vfs_get_tree+0x88/0x270
[ 258.858481][ T6621] do_new_mount+0x24a/0xa40
[ 258.863090][ T6621] __se_sys_mount+0x2e3/0x3d0
[ 258.868091][ T6621] ? __x64_sys_mount+0xc0/0xc0
[ 258.873441][ T6621] ? lockdep_hardirqs_on+0x94/0x140
[ 258.878854][ T6621] ? __x64_sys_mount+0x1c/0xc0
[ 258.883822][ T6621] do_syscall_64+0x4c/0xa0
[ 258.888257][ T6621] ? clear_bhb_loop+0x30/0x80
[ 258.893121][ T6621] ? clear_bhb_loop+0x30/0x80
[ 258.898087][ T6621] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 258.904091][ T6621] RIP: 0033:0x7f94881c160a
[ 258.908700][ T6621] 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
[ 258.928671][ T6621] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.937379][ T6621] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 258.945457][ T6621] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 258.953526][ T6621] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 258.962032][ T6621] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 258.970290][ T6621] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 258.978286][ T6621]
[ 258.983488][ T6621] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.996920][ T6621] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.031558][ T6627] loop0: detected capacity change from 0 to 32768
[ 259.087578][ T6627] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.095725][ T6627] CPU: 1 PID: 6627 Comm: syz.0.442 Not tainted syzkaller #0
[ 259.103671][ T6627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 259.114250][ T6627] Call Trace:
[ 259.117540][ T6627]
[ 259.120568][ T6627] dump_stack_lvl+0x188/0x250
[ 259.125470][ T6627] ? show_regs_print_info+0x20/0x20
[ 259.131220][ T6627] ? load_image+0x400/0x400
[ 259.136052][ T6627] sysfs_create_dir_ns+0x26a/0x290
[ 259.141291][ T6627] ? sysfs_warn_dup+0xa0/0xa0
[ 259.146025][ T6627] ? do_raw_spin_unlock+0x11d/0x230
[ 259.151484][ T6627] kobject_add_internal+0x6e0/0xd90
[ 259.156979][ T6627] kobject_init_and_add+0x128/0x190
[ 259.162511][ T6627] ? lockdep_softirqs_off+0x430/0x430
[ 259.168457][ T6627] ? kobject_add+0x230/0x230
[ 259.173314][ T6627] ? __init_swait_queue_head+0xa5/0x150
[ 259.179514][ T6627] gfs2_sys_fs_add+0x24f/0x4b0
[ 259.184490][ T6627] ? gfs2_recover_set+0x240/0x240
[ 259.190125][ T6627] ? snprintf+0xe5/0x140
[ 259.194570][ T6627] ? __free_pages+0x95/0x1a0
[ 259.199267][ T6627] ? vscnprintf+0x80/0x80
[ 259.203838][ T6627] gfs2_fill_super+0x120f/0x1f00
[ 259.209727][ T6627] ? gfs2_reconfigure+0xd30/0xd30
[ 259.215041][ T6627] ? sb_set_blocksize+0xa5/0xe0
[ 259.220265][ T6627] get_tree_bdev+0x3f1/0x610
[ 259.225065][ T6627] ? gfs2_reconfigure+0xd30/0xd30
[ 259.230623][ T6627] gfs2_get_tree+0x4d/0x1e0
[ 259.235442][ T6627] vfs_get_tree+0x88/0x270
[ 259.240274][ T6627] do_new_mount+0x24a/0xa40
[ 259.244983][ T6627] __se_sys_mount+0x2e3/0x3d0
[ 259.250194][ T6627] ? __x64_sys_mount+0xc0/0xc0
[ 259.255510][ T6627] ? lockdep_hardirqs_on+0x94/0x140
[ 259.260996][ T6627] ? __x64_sys_mount+0x1c/0xc0
[ 259.266399][ T6627] do_syscall_64+0x4c/0xa0
[ 259.271138][ T6627] ? clear_bhb_loop+0x30/0x80
[ 259.276120][ T6627] ? clear_bhb_loop+0x30/0x80
[ 259.281254][ T6627] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 259.288850][ T6627] RIP: 0033:0x7f44434eb60a
[ 259.293285][ T6627] 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
[ 259.314305][ T6627] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.322676][ T6630] loop2: detected capacity change from 0 to 32768
[ 259.323606][ T6627] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 259.338600][ T6627] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 259.348039][ T6627] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
[ 259.359437][ T6627] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 259.368404][ T6627] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
[ 259.377289][ T6627]
[ 259.381590][ T6627] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.395461][ T6627] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.681283][ T6634] loop5: detected capacity change from 0 to 32768
[ 259.776909][ T6634] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.784623][ T6634] CPU: 0 PID: 6634 Comm: syz.5.446 Not tainted syzkaller #0
[ 259.792284][ T6634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 259.803060][ T6634] Call Trace:
[ 259.806602][ T6634]
[ 259.809644][ T6634] dump_stack_lvl+0x188/0x250
[ 259.814361][ T6634] ? show_regs_print_info+0x20/0x20
[ 259.819657][ T6634] ? load_image+0x400/0x400
[ 259.824358][ T6634] sysfs_create_dir_ns+0x26a/0x290
[ 259.829688][ T6634] ? sysfs_warn_dup+0xa0/0xa0
[ 259.834804][ T6634] ? do_raw_spin_unlock+0x11d/0x230
[ 259.840117][ T6634] kobject_add_internal+0x6e0/0xd90
[ 259.845607][ T6634] kobject_init_and_add+0x128/0x190
[ 259.851602][ T6634] ? lockdep_softirqs_off+0x430/0x430
[ 259.857459][ T6634] ? kobject_add+0x230/0x230
[ 259.862514][ T6634] ? __init_swait_queue_head+0xa5/0x150
[ 259.868488][ T6634] gfs2_sys_fs_add+0x24f/0x4b0
[ 259.873763][ T6634] ? gfs2_recover_set+0x240/0x240
[ 259.879945][ T6634] ? snprintf+0xe5/0x140
[ 259.884570][ T6634] ? __free_pages+0x95/0x1a0
[ 259.889414][ T6634] ? vscnprintf+0x80/0x80
[ 259.894002][ T6634] gfs2_fill_super+0x120f/0x1f00
[ 259.899585][ T6634] ? gfs2_reconfigure+0xd30/0xd30
[ 259.905176][ T6634] ? sb_set_blocksize+0xa5/0xe0
[ 259.910952][ T6634] get_tree_bdev+0x3f1/0x610
[ 259.915906][ T6634] ? gfs2_reconfigure+0xd30/0xd30
[ 259.921115][ T6634] gfs2_get_tree+0x4d/0x1e0
[ 259.925901][ T6634] vfs_get_tree+0x88/0x270
[ 259.930651][ T6634] do_new_mount+0x24a/0xa40
[ 259.935306][ T6634] __se_sys_mount+0x2e3/0x3d0
[ 259.941790][ T6634] ? __x64_sys_mount+0xc0/0xc0
[ 259.946867][ T6634] ? lockdep_hardirqs_on+0x94/0x140
[ 259.952265][ T6634] ? __x64_sys_mount+0x1c/0xc0
[ 259.957397][ T6634] do_syscall_64+0x4c/0xa0
[ 259.962199][ T6634] ? clear_bhb_loop+0x30/0x80
[ 259.967154][ T6634] ? clear_bhb_loop+0x30/0x80
[ 259.971732][ T6635] loop4: detected capacity change from 0 to 32768
[ 259.972100][ T6634] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 259.985180][ T6634] RIP: 0033:0x7f58b132260a
[ 259.989816][ 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
[ 259.991583][ T6630] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 260.010215][ T6634] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 260.010243][ T6634] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 260.010255][ T6634] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
[ 260.010267][ T6634] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 260.010278][ T6634] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 260.010289][ T6634] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 260.010312][ T6634]
[ 260.012772][ T6634] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 260.018157][ T6630] CPU: 1 PID: 6630 Comm: syz.2.443 Not tainted syzkaller #0
[ 260.026622][ T6634] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 260.035360][ T6630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 260.035379][ T6630] Call Trace:
[ 260.035388][ T6630]
[ 260.035396][ T6630] dump_stack_lvl+0x188/0x250
[ 260.035421][ T6630] ? show_regs_print_info+0x20/0x20
[ 260.129631][ T6630] ? load_image+0x400/0x400
[ 260.134952][ T6630] sysfs_create_dir_ns+0x26a/0x290
[ 260.141842][ T6630] ? sysfs_warn_dup+0xa0/0xa0
[ 260.148216][ T6630] ? do_raw_spin_unlock+0x11d/0x230
[ 260.153771][ T6630] kobject_add_internal+0x6e0/0xd90
[ 260.159437][ T6630] kobject_init_and_add+0x128/0x190
[ 260.165009][ T6630] ? lockdep_softirqs_off+0x430/0x430
[ 260.170556][ T6630] ? kobject_add+0x230/0x230
[ 260.175657][ T6630] ? __init_swait_queue_head+0xa5/0x150
[ 260.181286][ T6630] gfs2_sys_fs_add+0x24f/0x4b0
[ 260.186640][ T6630] ? gfs2_recover_set+0x240/0x240
[ 260.192022][ T6630] ? snprintf+0xe5/0x140
[ 260.196661][ T6630] ? __free_pages+0x95/0x1a0
[ 260.201436][ T6630] ? vscnprintf+0x80/0x80
[ 260.206307][ T6630] gfs2_fill_super+0x120f/0x1f00
[ 260.212008][ T6630] ? gfs2_reconfigure+0xd30/0xd30
[ 260.217441][ T6630] ? sb_set_blocksize+0xa5/0xe0
[ 260.222678][ T6630] get_tree_bdev+0x3f1/0x610
[ 260.227362][ T6630] ? gfs2_reconfigure+0xd30/0xd30
[ 260.233739][ T6630] gfs2_get_tree+0x4d/0x1e0
[ 260.238345][ T6630] vfs_get_tree+0x88/0x270
[ 260.242969][ T6630] do_new_mount+0x24a/0xa40
[ 260.247661][ T6630] __se_sys_mount+0x2e3/0x3d0
[ 260.252651][ T6630] ? __x64_sys_mount+0xc0/0xc0
[ 260.257752][ T6630] ? lockdep_hardirqs_on+0x94/0x140
[ 260.263851][ T6630] ? __x64_sys_mount+0x1c/0xc0
[ 260.269143][ T6630] do_syscall_64+0x4c/0xa0
[ 260.273679][ T6630] ? clear_bhb_loop+0x30/0x80
[ 260.278780][ T6630] ? clear_bhb_loop+0x30/0x80
[ 260.283541][ T6630] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 260.289514][ T6630] RIP: 0033:0x7f95167b260a
[ 260.294423][ 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
[ 260.316428][ T6630] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 260.328278][ T6630] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 260.337302][ T6630] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
[ 260.347985][ T6630] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 260.357041][ T6630] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 260.366474][ T6630] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
2026/03/31 16:50:44 executed programs: 441
[ 260.380280][ T6630]
[ 260.385121][ T6630] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 260.399887][ T6630] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 260.467166][ T6635] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 260.474947][ T6635] CPU: 1 PID: 6635 Comm: syz.4.445 Not tainted syzkaller #0
[ 260.482700][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 260.493490][ T6635] Call Trace:
[ 260.496968][ T6635]
[ 260.499916][ T6635] dump_stack_lvl+0x188/0x250
[ 260.504617][ T6635] ? show_regs_print_info+0x20/0x20
[ 260.510863][ T6635] ? load_image+0x400/0x400
[ 260.515530][ T6635] sysfs_create_dir_ns+0x26a/0x290
[ 260.520855][ T6635] ? sysfs_warn_dup+0xa0/0xa0
[ 260.525730][ T6635] ? do_raw_spin_unlock+0x11d/0x230
[ 260.531163][ T6635] kobject_add_internal+0x6e0/0xd90
[ 260.536487][ T6635] kobject_init_and_add+0x128/0x190
[ 260.541898][ T6635] ? lockdep_softirqs_off+0x430/0x430
[ 260.547596][ T6635] ? kobject_add+0x230/0x230
[ 260.552319][ T6635] ? __init_swait_queue_head+0xa5/0x150
[ 260.558162][ T6635] gfs2_sys_fs_add+0x24f/0x4b0
[ 260.563125][ T6635] ? gfs2_recover_set+0x240/0x240
[ 260.568797][ T6635] ? snprintf+0xe5/0x140
[ 260.573211][ T6635] ? __free_pages+0x95/0x1a0
[ 260.578081][ T6635] ? vscnprintf+0x80/0x80
[ 260.582459][ T6635] gfs2_fill_super+0x120f/0x1f00
[ 260.587610][ T6635] ? gfs2_reconfigure+0xd30/0xd30
[ 260.592769][ T6635] ? sb_set_blocksize+0xa5/0xe0
[ 260.598172][ T6635] get_tree_bdev+0x3f1/0x610
[ 260.603010][ T6635] ? gfs2_reconfigure+0xd30/0xd30
[ 260.608144][ T6635] gfs2_get_tree+0x4d/0x1e0
[ 260.612931][ T6635] vfs_get_tree+0x88/0x270
[ 260.617463][ T6635] do_new_mount+0x24a/0xa40
[ 260.622247][ T6635] __se_sys_mount+0x2e3/0x3d0
[ 260.627058][ T6635] ? __x64_sys_mount+0xc0/0xc0
[ 260.632355][ T6635] ? lockdep_hardirqs_on+0x94/0x140
[ 260.637748][ T6635] ? __x64_sys_mount+0x1c/0xc0
[ 260.642793][ T6635] do_syscall_64+0x4c/0xa0
[ 260.647902][ T6635] ? clear_bhb_loop+0x30/0x80
[ 260.652794][ T6635] ? clear_bhb_loop+0x30/0x80
[ 260.657767][ T6635] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 260.664206][ T6635] RIP: 0033:0x7fded93a760a
[ 260.668895][ T6635] 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
[ 260.689227][ T6635] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 260.698493][ T6635] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 260.706663][ T6635] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 260.714651][ T6635] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 260.722648][ T6635] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 260.731255][ T6635] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 260.740351][ T6635]
[ 260.744420][ T6635] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 260.758132][ T6635] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 260.779039][ T6637] loop0: detected capacity change from 0 to 32768
[ 260.875209][ T6637] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 260.882828][ T6637] CPU: 0 PID: 6637 Comm: syz.0.449 Not tainted syzkaller #0
[ 260.890345][ T6637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 260.900415][ T6637] Call Trace:
[ 260.903788][ T6637]
[ 260.906816][ T6637] dump_stack_lvl+0x188/0x250
[ 260.911517][ T6637] ? show_regs_print_info+0x20/0x20
[ 260.916767][ T6637] ? load_image+0x400/0x400
[ 260.921310][ T6637] sysfs_create_dir_ns+0x26a/0x290
[ 260.926538][ T6637] ? sysfs_warn_dup+0xa0/0xa0
[ 260.931318][ T6637] ? do_raw_spin_unlock+0x11d/0x230
[ 260.936573][ T6637] kobject_add_internal+0x6e0/0xd90
[ 260.941989][ T6637] kobject_init_and_add+0x128/0x190
[ 260.947403][ T6637] ? lockdep_softirqs_off+0x430/0x430
[ 260.952989][ T6637] ? kobject_add+0x230/0x230
[ 260.957605][ T6637] ? __init_swait_queue_head+0xa5/0x150
[ 260.963503][ T6637] gfs2_sys_fs_add+0x24f/0x4b0
[ 260.968383][ T6637] ? gfs2_recover_set+0x240/0x240
[ 260.974209][ T6637] ? snprintf+0xe5/0x140
[ 260.979173][ T6637] ? __free_pages+0x95/0x1a0
[ 260.984078][ T6637] ? vscnprintf+0x80/0x80
[ 260.988751][ T6637] gfs2_fill_super+0x120f/0x1f00
[ 260.993809][ T6637] ? gfs2_reconfigure+0xd30/0xd30
[ 260.999071][ T6637] ? sb_set_blocksize+0xa5/0xe0
[ 261.004378][ T6637] get_tree_bdev+0x3f1/0x610
[ 261.009087][ T6637] ? gfs2_reconfigure+0xd30/0xd30
[ 261.014221][ T6637] gfs2_get_tree+0x4d/0x1e0
[ 261.018739][ T6637] vfs_get_tree+0x88/0x270
[ 261.023257][ T6637] do_new_mount+0x24a/0xa40
[ 261.027986][ T6637] __se_sys_mount+0x2e3/0x3d0
[ 261.032979][ T6637] ? __x64_sys_mount+0xc0/0xc0
[ 261.038481][ T6637] ? lockdep_hardirqs_on+0x94/0x140
[ 261.043970][ T6637] ? __x64_sys_mount+0x1c/0xc0
[ 261.045314][ T6639] loop5: detected capacity change from 0 to 32768
[ 261.048852][ T6637] do_syscall_64+0x4c/0xa0
[ 261.048876][ T6637] ? clear_bhb_loop+0x30/0x80
[ 261.048893][ T6637] ? clear_bhb_loop+0x30/0x80
[ 261.048910][ T6637] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 261.077351][ T6637] RIP: 0033:0x7f44434eb60a
[ 261.082079][ T6637] 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
[ 261.103011][ T6637] RSP: 002b:00007f4442b4de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 261.111737][ T6637] RAX: ffffffffffffffda RBX: 00007f4442b4dee0 RCX: 00007f44434eb60a
[ 261.119740][ T6637] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f4442b4dea0
[ 261.128109][ T6637] RBP: 0000200000000400 R08: 00007f4442b4dee0 R09: 0000000000000000
[ 261.137165][ T6637] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 261.145241][ T6637] R13: 00007f4442b4dea0 R14: 00000000000125ed R15: 0000200000000640
[ 261.153950][ T6637]
[ 261.159288][ T6637] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 261.173827][ T6637] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 261.183704][ T27] INFO: task syz.1.34:5290 blocked for more than 143 seconds.
[ 261.215834][ T27] Not tainted syzkaller #0
[ 261.232936][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 261.263558][ T27] task:syz.1.34 state:D stack:25680 pid: 5290 ppid: 4949 flags:0x00004004
[ 261.298196][ T27] Call Trace:
[ 261.301708][ T27]
[ 261.317444][ T27] __schedule+0x11ef/0x43c0
[ 261.324466][ T27] ? rcu_read_lock_sched_held+0x86/0x110
[ 261.335061][ T27] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 261.344153][ T27] ? rcu_is_watching+0x11/0xa0
[ 261.353754][ T27] ? release_firmware_map_entry+0x190/0x190
[ 261.366676][ T27] ? cpufreq_update_util+0x91/0x230
[ 261.376912][ T27] schedule+0x11b/0x1e0
[ 261.384944][ T27] schedule_timeout+0xbd/0x2d0
[ 261.394791][ T27] ? console_conditional_schedule+0x40/0x40
[ 261.404142][ T27] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 261.428116][ T27] ? lock_chain_count+0x20/0x20
[ 261.433833][ T27] ? lock_chain_count+0x20/0x20
[ 261.448125][ T27] ? _raw_spin_unlock_irq+0x1f/0x40
[ 261.450891][ T6641] loop2: detected capacity change from 0 to 32768
[ 261.465066][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 261.474128][ T27] do_wait_for_common+0x2a2/0x450
[ 261.494376][ T27] ? console_conditional_schedule+0x40/0x40
[ 261.507811][ T27] ? wait_for_completion_killable_timeout+0x60/0x60
[ 261.524288][ T27] ? _raw_spin_lock_irq+0xb7/0xf0
[ 261.530919][ T27] ? try_to_wake_up+0x6cf/0x1050
[ 261.536094][ T27] wait_for_completion+0x48/0x60
[ 261.548073][ T27] kthread_stop+0x16e/0x540
[ 261.553312][ T27] gfs2_make_fs_ro+0x157/0x620
[ 261.558963][ T27] ? gfs2_dinode_out+0xb00/0xb00
[ 261.564376][ T27] ? do_raw_spin_lock+0x128/0x2f0
[ 261.570692][ T27] ? __rwlock_init+0x140/0x140
[ 261.575840][ T27] ? do_raw_spin_unlock+0x11d/0x230
[ 261.581550][ T27] ? gfs2_glock_is_locked_by_me+0x16f/0x190
[ 261.587671][ T27] gfs2_withdraw+0x610/0x1490
[ 261.593296][ T27] ? gfs2_lm+0x240/0x240
[ 261.597865][ T27] ? gfs2_meta_buffer+0x310/0x310
[ 261.603498][ T27] ? from_kuid_munged+0x6b0/0x6b0
[ 261.609020][ T27] gfs2_metatype_check_ii+0x74/0x90
[ 261.614498][ T27] gfs2_quota_init+0xca5/0xea0
[ 261.621446][ T27] ? qd_get+0x5f0/0x5f0
[ 261.625802][ T27] gfs2_make_fs_rw+0x414/0x580
[ 261.631313][ T27] ? _raw_spin_unlock+0x24/0x40
[ 261.636294][ T27] ? gfs2_glock_nq+0xcb0/0x1550
[ 261.643300][ T27] ? gfs2_jdesc_check+0x290/0x290
[ 261.649352][ T27] gfs2_fill_super+0x1837/0x1f00
[ 261.654609][ T27] ? gfs2_reconfigure+0xd30/0xd30
[ 261.660124][ T27] ? gfs2_glock_nq_num+0x82/0x1b0
[ 261.665491][ T27] ? gfs2_freeze_lock+0x52/0xc0
[ 261.671231][ T27] ? sb_set_blocksize+0xa5/0xe0
[ 261.676642][ T27] get_tree_bdev+0x3f1/0x610
[ 261.681749][ T27] ? gfs2_reconfigure+0xd30/0xd30
[ 261.687543][ T27] gfs2_get_tree+0x4d/0x1e0
[ 261.692961][ T27] vfs_get_tree+0x88/0x270
[ 261.699343][ T27] do_new_mount+0x24a/0xa40
[ 261.704266][ T27] __se_sys_mount+0x2e3/0x3d0
[ 261.709986][ T27] ? __x64_sys_mount+0xc0/0xc0
[ 261.715412][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 261.722464][ T27] ? __x64_sys_mount+0x1c/0xc0
[ 261.727963][ T27] do_syscall_64+0x4c/0xa0
[ 261.733068][ T27] ? clear_bhb_loop+0x30/0x80
[ 261.738522][ T27] ? clear_bhb_loop+0x30/0x80
[ 261.743692][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 261.751385][ T27] RIP: 0033:0x7fa5ec82260a
[ 261.756089][ T27] RSP: 002b:00007fa5ebe84e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 261.765286][ T27] RAX: ffffffffffffffda RBX: 00007fa5ebe84ee0 RCX: 00007fa5ec82260a
[ 261.784432][ T27] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fa5ebe84ea0
[ 261.798181][ T27] RBP: 0000200000000400 R08: 00007fa5ebe84ee0 R09: 0000000000000000
[ 261.817233][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 261.846958][ T27] R13: 00007fa5ebe84ea0 R14: 00000000000125ed R15: 0000200000000640
[ 261.864047][ T27]
[ 261.867519][ T27] INFO: task gfs2_quotad:5302 blocked for more than 144 seconds.
[ 261.884320][ T27] Not tainted syzkaller #0
[ 261.890654][ T6639] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.898611][ T6639] CPU: 0 PID: 6639 Comm: syz.5.448 Not tainted syzkaller #0
[ 261.905938][ T6639] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 261.916369][ T6639] Call Trace:
[ 261.919893][ T6639]
[ 261.922927][ T6639] dump_stack_lvl+0x188/0x250
[ 261.928010][ T6639] ? show_regs_print_info+0x20/0x20
[ 261.933332][ T6639] ? load_image+0x400/0x400
[ 261.937865][ T6639] sysfs_create_dir_ns+0x26a/0x290
[ 261.943213][ T6639] ? sysfs_warn_dup+0xa0/0xa0
[ 261.947908][ T6639] ? do_raw_spin_unlock+0x11d/0x230
[ 261.953233][ T6639] kobject_add_internal+0x6e0/0xd90
[ 261.958687][ T6639] kobject_init_and_add+0x128/0x190
[ 261.964119][ T6639] ? lockdep_softirqs_off+0x430/0x430
[ 261.969528][ T6639] ? kobject_add+0x230/0x230
[ 261.974341][ T6639] ? __init_swait_queue_head+0xa5/0x150
[ 261.980175][ T6639] gfs2_sys_fs_add+0x24f/0x4b0
[ 261.985029][ T6639] ? gfs2_recover_set+0x240/0x240
[ 261.990266][ T6639] ? snprintf+0xe5/0x140
[ 261.994616][ T6639] ? __free_pages+0x95/0x1a0
[ 261.999407][ T6639] ? vscnprintf+0x80/0x80
[ 262.004279][ T6639] gfs2_fill_super+0x120f/0x1f00
[ 262.009326][ T6639] ? gfs2_reconfigure+0xd30/0xd30
[ 262.014384][ T6639] ? sb_set_blocksize+0xa5/0xe0
[ 262.019242][ T6639] get_tree_bdev+0x3f1/0x610
[ 262.023844][ T6639] ? gfs2_reconfigure+0xd30/0xd30
[ 262.029051][ T6639] gfs2_get_tree+0x4d/0x1e0
[ 262.033561][ T6639] vfs_get_tree+0x88/0x270
[ 262.038327][ T6639] do_new_mount+0x24a/0xa40
[ 262.042922][ T6639] __se_sys_mount+0x2e3/0x3d0
[ 262.047625][ T6639] ? __x64_sys_mount+0xc0/0xc0
[ 262.052398][ T6639] ? lockdep_hardirqs_on+0x94/0x140
[ 262.057713][ T6639] ? __x64_sys_mount+0x1c/0xc0
[ 262.062630][ T6639] do_syscall_64+0x4c/0xa0
[ 262.067164][ T6639] ? clear_bhb_loop+0x30/0x80
[ 262.072117][ T6639] ? clear_bhb_loop+0x30/0x80
[ 262.076928][ T6639] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 262.082829][ T6639] RIP: 0033:0x7f58b132260a
[ 262.087392][ T6639] 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
[ 262.107363][ T6639] RSP: 002b:00007f58b0984e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 262.115895][ T6639] RAX: ffffffffffffffda RBX: 00007f58b0984ee0 RCX: 00007f58b132260a
[ 262.123889][ T6639] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f58b0984ea0
[ 262.132237][ T6639] RBP: 0000200000000400 R08: 00007f58b0984ee0 R09: 0000000000000000
[ 262.140224][ T6639] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 262.148644][ T6639] R13: 00007f58b0984ea0 R14: 00000000000125ed R15: 0000200000000640
[ 262.156822][ T6639]
[ 262.160036][ T6639] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 262.173506][ T6639] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 262.181161][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 262.259453][ T27] task:gfs2_quotad state:D stack:27096 pid: 5302 ppid: 2 flags:0x00004000
[ 262.269304][ T6644] loop0: detected capacity change from 0 to 32768
[ 262.296429][ T27] Call Trace:
[ 262.317360][ T27]
[ 262.330991][ T27] __schedule+0x11ef/0x43c0
[ 262.350156][ T27] ? lock_chain_count+0x20/0x20
[ 262.460724][ T6646] loop4: detected capacity change from 0 to 32768
[ 262.470028][ T27] ? release_firmware_map_entry+0x190/0x190
[ 262.476232][ T27] ? _raw_spin_unlock_irqrestore+0x82/0x120
[ 262.482644][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 262.498085][ T27] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 262.514701][ T27] schedule+0x11b/0x1e0
[ 262.526016][ T27] bit_wait+0xd/0xc0
[ 262.554666][ T27] out_of_line_wait_on_bit+0x173/0x230
[ 262.568419][ T27] ? out_of_line_wait_on_bit_lock+0x190/0x190
[ 262.575736][ T27] ? __wait_on_bit+0x170/0x170
[ 262.590471][ T27] ? bit_waitqueue+0x30/0x30
[ 262.595231][ T27] ? do_raw_spin_unlock+0x11d/0x230
[ 262.606679][ T27] __gfs2_glock_dq+0x6b5/0xa10
[ 262.615357][ T27] gfs2_glock_dq_uninit+0x4f/0x110
[ 262.625437][ T6648] loop3: detected capacity change from 0 to 32768
[ 262.626027][ T27] gfs2_statfs_sync+0x718/0x7c0
[ 262.637663][ T27] ? update_statfs+0x320/0x320
[ 262.644463][ T27] ? finish_task_switch+0x12f/0x640
[ 262.650604][ T27] ? gfs2_statfs_sync+0x15b/0x7c0
[ 262.657043][ T27] gfs2_quotad+0x372/0x890
[ 262.661927][ T27] ? gfs2_wake_up_statfs+0xc0/0xc0
[ 262.668782][ T27] ? _raw_spin_unlock_irqrestore+0x82/0x120
[ 262.675367][ T27] ? init_wait_entry+0xd0/0xd0
[ 262.680784][ T27] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 262.687509][ T27] ? __kthread_parkme+0x157/0x1b0
[ 262.693720][ T27] kthread+0x436/0x520
[ 262.698598][ T27] ? gfs2_wake_up_statfs+0xc0/0xc0
[ 262.704339][ T27] ? kthread_blkcg+0xd0/0xd0
[ 262.709418][ T27] ret_from_fork+0x1f/0x30
[ 262.714219][ T27]
[ 262.717775][ T27]
[ 262.717775][ T27] Showing all locks held in the system:
[ 262.726061][ T27] 1 lock held by khungtaskd/27:
[ 262.727798][ T6641] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 262.731314][ T27] #0: ffffffff8c31eaa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 262.731418][ T27] 2 locks held by udevd/3561:
[ 262.731432][ T27] 2 locks held by getty/3946:
[ 262.731442][ T27] #0: ffff88814caab098 (&tty->ldisc_sem){++++}-{0:0}
[ 262.739042][ T6641] CPU: 1 PID: 6641 Comm: syz.2.450 Not tainted syzkaller #0
[ 262.739065][ T6641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 262.750404][ T27] , at: tty_ldisc_ref_wait+0x21/0x70
[ 262.753305][ T6641] Call Trace:
[ 262.753317][ T6641]
[ 262.758354][ T27] #1:
[ 262.765104][ T6641] dump_stack_lvl+0x188/0x250
[ 262.773201][ T27] ffffc90002cf62e8
[ 262.782696][ T6641] ? show_regs_print_info+0x20/0x20
[ 262.782727][ T6641] ? load_image+0x400/0x400
[ 262.782752][ T6641] sysfs_create_dir_ns+0x26a/0x290
[ 262.782771][ T6641] ? sysfs_warn_dup+0xa0/0xa0
[ 262.782786][ T6641] ? do_raw_spin_unlock+0x11d/0x230
[ 262.782807][ T6641] kobject_add_internal+0x6e0/0xd90
[ 262.782830][ T6641] kobject_init_and_add+0x128/0x190
[ 262.782846][ T6641] ? lockdep_softirqs_off+0x430/0x430
[ 262.782868][ T6641] ? kobject_add+0x230/0x230
[ 262.782890][ T6641] ? __init_swait_queue_head+0xa5/0x150
[ 262.782913][ T6641] gfs2_sys_fs_add+0x24f/0x4b0
[ 262.800711][ T27] (
[ 262.802392][ T6641] ? gfs2_recover_set+0x240/0x240
[ 262.806324][ T27] &ldata->atomic_read_lock
[ 262.811582][ T6641] ? snprintf+0xe5/0x140
[ 262.811602][ T6641] ? __free_pages+0x95/0x1a0
[ 262.811623][ T6641] ? vscnprintf+0x80/0x80
[ 262.811647][ T6641] gfs2_fill_super+0x120f/0x1f00
[ 262.811677][ T6641] ? gfs2_reconfigure+0xd30/0xd30
[ 262.811708][ T6641] ? sb_set_blocksize+0xa5/0xe0
[ 262.811725][ T6641] get_tree_bdev+0x3f1/0x610
[ 262.811747][ T6641] ? gfs2_reconfigure+0xd30/0xd30
[ 262.811768][ T6641] gfs2_get_tree+0x4d/0x1e0
[ 262.811789][ T6641] vfs_get_tree+0x88/0x270
[ 262.811808][ T6641] do_new_mount+0x24a/0xa40
[ 262.811831][ T6641] __se_sys_mount+0x2e3/0x3d0
[ 262.822682][ T27] ){+.+.}-{3:3}
[ 262.826558][ T6641] ? __x64_sys_mount+0xc0/0xc0
[ 262.826601][ T6641] ? lockdep_hardirqs_on+0x94/0x140
[ 262.833664][ T27] , at: n_tty_read+0x5df/0x1a70
[ 262.837683][ T6641] ? __x64_sys_mount+0x1c/0xc0
[ 262.837716][ T6641] do_syscall_64+0x4c/0xa0
[ 262.837735][ T6641] ? clear_bhb_loop+0x30/0x80
[ 262.851391][ T27] 1 lock held by syz.1.34/5290:
[ 262.854507][ T6641] ? clear_bhb_loop+0x30/0x80
[ 262.854536][ T6641] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 262.854556][ T6641] RIP: 0033:0x7f95167b260a
[ 262.854574][ 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
[ 262.854588][ T6641] RSP: 002b:00007f9515e14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 262.863489][ T27] #0:
[ 262.865239][ T6641] RAX: ffffffffffffffda RBX: 00007f9515e14ee0 RCX: 00007f95167b260a
[ 262.867835][ T27] ffff888023c4e0e0
[ 262.873107][ T6641] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9515e14ea0
[ 262.873126][ T6641] RBP: 0000200000000400 R08: 00007f9515e14ee0 R09: 0000000000000000
[ 262.873136][ T6641] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 262.873146][ T6641] R13: 00007f9515e14ea0 R14: 00000000000125ed R15: 0000200000000640
[ 262.873170][ T6641]
[ 262.875209][ T6641] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 262.895286][ T27] (
[ 262.897492][ T6641] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 262.908191][ T27] &type->s_umount_key
[ 262.916966][ T6646] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 262.934700][ T27] #53
[ 262.938560][ T6646] CPU: 1 PID: 6646 Comm: syz.4.452 Not tainted syzkaller #0
[ 262.938585][ T6646] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 262.938594][ T6646] Call Trace:
[ 262.938600][ T6646]
[ 262.938608][ T6646] dump_stack_lvl+0x188/0x250
[ 262.938632][ T6646] ? show_regs_print_info+0x20/0x20
[ 262.938654][ T6646] ? load_image+0x400/0x400
[ 262.938679][ T6646] sysfs_create_dir_ns+0x26a/0x290
[ 262.952551][ T27] /1
[ 262.953889][ T6646] ? sysfs_warn_dup+0xa0/0xa0
[ 262.962840][ T27] ){+.+.}-{3:3}
[ 262.964258][ T6646] ? do_raw_spin_unlock+0x11d/0x230
[ 262.974141][ T27] , at: alloc_super+0x201/0x950
[ 262.979467][ T6646] kobject_add_internal+0x6e0/0xd90
[ 262.979513][ T6646] kobject_init_and_add+0x128/0x190
[ 262.979530][ T6646] ? lockdep_softirqs_off+0x430/0x430
[ 262.979552][ T6646] ? kobject_add+0x230/0x230
[ 262.979572][ T6646] ? __init_swait_queue_head+0xa5/0x150
[ 262.979596][ T6646] gfs2_sys_fs_add+0x24f/0x4b0
[ 262.979623][ T6646] ? gfs2_recover_set+0x240/0x240
[ 262.991947][ T27] 2 locks held by syz.5.448/6639:
[ 262.996952][ T6646] ? snprintf+0xe5/0x140
[ 263.003955][ T27] #0:
[ 263.022348][ T6646] ? __free_pages+0x95/0x1a0
[ 263.022383][ T6646] ? vscnprintf+0x80/0x80
[ 263.022407][ T6646] gfs2_fill_super+0x120f/0x1f00
[ 263.022437][ T6646] ? gfs2_reconfigure+0xd30/0xd30
[ 263.022470][ T6646] ? sb_set_blocksize+0xa5/0xe0
[ 263.022487][ T6646] get_tree_bdev+0x3f1/0x610
[ 263.022506][ T6646] ? gfs2_reconfigure+0xd30/0xd30
[ 263.022524][ T6646] gfs2_get_tree+0x4d/0x1e0
[ 263.022545][ T6646] vfs_get_tree+0x88/0x270
[ 263.022572][ T6646] do_new_mount+0x24a/0xa40
[ 263.022596][ T6646] __se_sys_mount+0x2e3/0x3d0
[ 263.022618][ T6646] ? __x64_sys_mount+0xc0/0xc0
[ 263.022638][ T6646] ? lockdep_hardirqs_on+0x94/0x140
[ 263.022657][ T6646] ? __x64_sys_mount+0x1c/0xc0
[ 263.022675][ T6646] do_syscall_64+0x4c/0xa0
[ 263.022689][ T6646] ? clear_bhb_loop+0x30/0x80
[ 263.022704][ T6646] ? clear_bhb_loop+0x30/0x80
[ 263.038741][ T27] ffff888020ce2118
[ 263.042920][ T6646] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 263.042949][ T6646] RIP: 0033:0x7fded93a760a
[ 263.042966][ T6646] 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
[ 263.042982][ T6646] RSP: 002b:00007fded8a09e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 263.043001][ T6646] RAX: ffffffffffffffda RBX: 00007fded8a09ee0 RCX: 00007fded93a760a
[ 263.046997][ T27] (
[ 263.055046][ T6646] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fded8a09ea0
[ 263.055070][ T6646] RBP: 0000200000000400 R08: 00007fded8a09ee0 R09: 0000000000000000
[ 263.055081][ T6646] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 263.055091][ T6646] R13: 00007fded8a09ea0 R14: 00000000000125ed R15: 0000200000000640
[ 263.055115][ T6646]
[ 263.055176][ T6646] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 263.055191][ T6646] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 263.447239][ T27] &disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[ 263.456811][ T27] #1: ffff88814732a468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 263.466816][ T27] 2 locks held by syz.2.450/6641:
[ 263.472153][ T27] #0: ffff888020cdcd18 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[ 263.481686][ T27] #1: ffff888020ee9468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 263.491433][ T27] 2 locks held by syz.0.451/6644:
[ 263.496883][ T27] #0: ffff888020ccd518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[ 263.509156][ T27] #1: ffff888147313468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 263.518978][ T27] 2 locks held by syz.4.452/6646:
[ 263.524246][ T27] #0: ffff888020ce0518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[ 263.533993][ T27] #1: ffff888020eef468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 263.543164][ T27] 2 locks held by syz.3.447/6648:
[ 263.548282][ T27] #0: ffff888020cde918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[ 263.557915][ T27] #1: ffff888020eec468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 263.567965][ T27]
[ 263.570707][ T27] =============================================
[ 263.570707][ T27]
[ 263.583058][ T6644] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 263.587176][ T27] NMI backtrace for cpu 1
[ 263.592464][ T6648] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 263.595080][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[ 263.610059][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 263.620490][ T27] Call Trace:
[ 263.623764][ T27]
[ 263.626778][ T27] dump_stack_lvl+0x188/0x250
[ 263.631454][ T27] ? show_regs_print_info+0x20/0x20
[ 263.636735][ T27] ? load_image+0x400/0x400
[ 263.641228][ T27] ? tick_nohz_tick_stopped+0x7b/0xb0
[ 263.646688][ T27] ? nmi_cpu_backtrace+0x1b2/0x3d0
[ 263.651993][ T27] nmi_cpu_backtrace+0x3a2/0x3d0
[ 263.657073][ T27] ? nmi_trigger_cpumask_backtrace+0x280/0x280
[ 263.663434][ T27] ? _printk+0xda/0x130
[ 263.667758][ T27] ? load_image+0x400/0x400
[ 263.672582][ T27] ? load_image+0x400/0x400
[ 263.677272][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 263.683334][ T27] nmi_trigger_cpumask_backtrace+0x163/0x280
[ 263.689345][ T27] watchdog+0xe0f/0xe50
[ 263.693616][ T27] kthread+0x436/0x520
[ 263.697939][ T27] ? hungtask_pm_notify+0x40/0x40
[ 263.703297][ T27] ? kthread_blkcg+0xd0/0xd0
[ 263.708156][ T27] ret_from_fork+0x1f/0x30
[ 263.712846][ T27]
[ 263.716140][ T6648] CPU: 0 PID: 6648 Comm: syz.3.447 Not tainted syzkaller #0
[ 263.716903][ T27] Sending NMI from CPU 1 to CPUs 0:
[ 263.723466][ T6648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 263.723479][ T6648] Call Trace:
[ 263.723486][ T6648]
[ 263.723494][ T6648] dump_stack_lvl+0x188/0x250
[ 263.723517][ T6648] ? show_regs_print_info+0x20/0x20
[ 263.723537][ T6648] ? load_image+0x400/0x400
[ 263.723563][ T6648] sysfs_create_dir_ns+0x26a/0x290
[ 263.723592][ T6648] ? sysfs_warn_dup+0xa0/0xa0
[ 263.723611][ T6648] ? do_raw_spin_unlock+0x11d/0x230
[ 263.723633][ T6648] kobject_add_internal+0x6e0/0xd90
[ 263.723658][ T6648] kobject_init_and_add+0x128/0x190
[ 263.729136][ C0] NMI backtrace for cpu 0
[ 263.729146][ C0] CPU: 0 PID: 6648 Comm: syz.3.447 Not tainted syzkaller #0
[ 263.729162][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 263.729171][ C0] RIP: 0010:io_serial_in+0x73/0xb0
[ 263.729191][ C0] Code: e8 b2 81 29 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 f3 8c 6e 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
[ 263.729203][ C0] RSP: 0018:ffffc9000396ef50 EFLAGS: 00000002
[ 263.729217][ C0] RAX: 1ffffffff2cc0360 RBX: 00000000000003fd RCX: 0000000000000000
[ 263.729228][ C0] RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000020
[ 263.729238][ C0] RBP: 0000000000000020 R08: 0000000000000003 R09: 0000000000000004
[ 263.729248][ C0] R10: dffffc0000000000 R11: fffff5200072dde0 R12: dffffc0000000000
[ 263.729259][ C0] R13: 1ffffffff2c63b30 R14: ffffffff96601840 R15: 0000000000000000
[ 263.729270][ C0] FS: 00007f94878246c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
[ 263.729285][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 263.729296][ C0] CR2: 00007f44434d3580 CR3: 0000000021e69000 CR4: 00000000003506f0
[ 263.729310][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 263.729320][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 263.729329][ C0] Call Trace:
[ 263.729335][ C0]
[ 263.729342][ C0] wait_for_xmitr+0x4c/0x260
[ 263.729358][ C0] ? _raw_spin_lock_irqsave+0xbc/0x100
[ 263.729374][ C0] serial8250_console_putchar+0x1a/0x50
[ 263.729392][ C0] uart_console_write+0xaa/0x100
[ 263.729406][ C0] ? serial8250_console_write+0x1000/0x1000
[ 263.729424][ C0] serial8250_console_write+0xc46/0x1000
[ 263.729447][ C0] ? serial8250_set_defaults+0x600/0x600
[ 263.729465][ C0] ? read_lock_is_recursive+0x10/0x10
[ 263.729483][ C0] ? do_raw_spin_lock+0x128/0x2f0
[ 263.729498][ C0] ? __rwlock_init+0x140/0x140
[ 263.729513][ C0] ? do_raw_spin_unlock+0x11d/0x230
[ 263.729530][ C0] console_unlock+0xb9a/0x1120
[ 263.729548][ C0] ? console_trylock_spinning+0x370/0x370
[ 263.729566][ C0] ? read_lock_is_recursive+0x10/0x10
[ 263.729588][ C0] ? __rwlock_init+0x140/0x140
[ 263.729607][ C0] ? vprintk_emit+0x150/0x150
[ 263.729627][ C0] vprintk_emit+0xc0/0x150
[ 263.729642][ C0] _printk+0xda/0x130
[ 263.729655][ C0] ? deref_stack_reg+0xd0/0x120
[ 263.729672][ C0] ? kobject_init_and_add+0x128/0x190
[ 263.729687][ C0] ? load_image+0x400/0x400
[ 263.729703][ C0] ? wq_watchdog_touch+0xeb/0x170
[ 263.729719][ C0] ? kobject_init_and_add+0x128/0x190
[ 263.729734][ C0] ? kobject_init_and_add+0x128/0x190
[ 263.729748][ C0] __show_trace_log_lvl+0x44e/0x550
[ 263.729771][ C0] ? kobject_init_and_add+0x128/0x190
[ 263.729787][ C0] dump_stack_lvl+0x188/0x250
[ 263.729802][ C0] ? show_regs_print_info+0x20/0x20
[ 263.729819][ C0] ? load_image+0x400/0x400
[ 263.729838][ C0] sysfs_create_dir_ns+0x26a/0x290
[ 263.729853][ C0] ? sysfs_warn_dup+0xa0/0xa0
[ 263.729868][ C0] ? do_raw_spin_unlock+0x11d/0x230
[ 263.729884][ C0] kobject_add_internal+0x6e0/0xd90
[ 263.729902][ C0] kobject_init_and_add+0x128/0x190
[ 263.729917][ C0] ? lockdep_softirqs_off+0x430/0x430
[ 263.729935][ C0] ? kobject_add+0x230/0x230
[ 263.729952][ C0] ? __init_swait_queue_head+0xa5/0x150
[ 263.729971][ C0] gfs2_sys_fs_add+0x24f/0x4b0
[ 263.729988][ C0] ? gfs2_recover_set+0x240/0x240
[ 263.730003][ C0] ? snprintf+0xe5/0x140
[ 263.730016][ C0] ? __free_pages+0x95/0x1a0
[ 263.730033][ C0] ? vscnprintf+0x80/0x80
[ 263.730052][ C0] gfs2_fill_super+0x120f/0x1f00
[ 263.730074][ C0] ? gfs2_reconfigure+0xd30/0xd30
[ 263.730096][ C0] ? sb_set_blocksize+0xa5/0xe0
[ 263.730111][ C0] get_tree_bdev+0x3f1/0x610
[ 263.730128][ C0] ? gfs2_reconfigure+0xd30/0xd30
[ 263.730144][ C0] gfs2_get_tree+0x4d/0x1e0
[ 263.730161][ C0] vfs_get_tree+0x88/0x270
[ 263.730177][ C0] do_new_mount+0x24a/0xa40
[ 263.730196][ C0] __se_sys_mount+0x2e3/0x3d0
[ 263.730214][ C0] ? __x64_sys_mount+0xc0/0xc0
[ 263.730231][ C0] ? lockdep_hardirqs_on+0x94/0x140
[ 263.730247][ C0] ? __x64_sys_mount+0x1c/0xc0
[ 263.730263][ C0] do_syscall_64+0x4c/0xa0
[ 263.730277][ C0] ? clear_bhb_loop+0x30/0x80
[ 263.730291][ C0] ? clear_bhb_loop+0x30/0x80
[ 263.730307][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 263.730322][ C0] RIP: 0033:0x7f94881c160a
[ 263.730337][ C0] 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
[ 263.730349][ C0] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 263.730364][ C0] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 263.730375][ C0] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 263.730386][ C0] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 263.730397][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 263.730407][ C0] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 263.730425][ C0]
[ 263.775209][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 263.777742][ T6648] ? lockdep_softirqs_off+0x430/0x430
[ 264.315914][ T6648] ? kobject_add+0x230/0x230
[ 264.320522][ T6648] ? __init_swait_queue_head+0xa5/0x150
[ 264.326070][ T6648] gfs2_sys_fs_add+0x24f/0x4b0
[ 264.330830][ T6648] ? gfs2_recover_set+0x240/0x240
[ 264.336045][ T6648] ? snprintf+0xe5/0x140
[ 264.340581][ T6648] ? __free_pages+0x95/0x1a0
[ 264.345470][ T6648] ? vscnprintf+0x80/0x80
[ 264.349931][ T6648] gfs2_fill_super+0x120f/0x1f00
[ 264.355358][ T6648] ? gfs2_reconfigure+0xd30/0xd30
[ 264.360553][ T6648] ? sb_set_blocksize+0xa5/0xe0
[ 264.365423][ T6648] get_tree_bdev+0x3f1/0x610
[ 264.370267][ T6648] ? gfs2_reconfigure+0xd30/0xd30
[ 264.375397][ T6648] gfs2_get_tree+0x4d/0x1e0
[ 264.379929][ T6648] vfs_get_tree+0x88/0x270
[ 264.384352][ T6648] do_new_mount+0x24a/0xa40
[ 264.389543][ T6648] __se_sys_mount+0x2e3/0x3d0
[ 264.394261][ T6648] ? __x64_sys_mount+0xc0/0xc0
[ 264.399119][ T6648] ? lockdep_hardirqs_on+0x94/0x140
[ 264.404594][ T6648] ? __x64_sys_mount+0x1c/0xc0
[ 264.409480][ T6648] do_syscall_64+0x4c/0xa0
[ 264.413908][ T6648] ? clear_bhb_loop+0x30/0x80
[ 264.418689][ T6648] ? clear_bhb_loop+0x30/0x80
[ 264.423533][ T6648] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 264.429717][ T6648] RIP: 0033:0x7f94881c160a
[ 264.434139][ T6648] 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
[ 264.454476][ T6648] RSP: 002b:00007f9487823e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 264.462990][ T6648] RAX: ffffffffffffffda RBX: 00007f9487823ee0 RCX: 00007f94881c160a
[ 264.471150][ T6648] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f9487823ea0
[ 264.479575][ T6648] RBP: 0000200000000400 R08: 00007f9487823ee0 R09: 0000000000000000
[ 264.487576][ T6648] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 264.496175][ T6648] R13: 00007f9487823ea0 R14: 00000000000125ed R15: 0000200000000640
[ 264.504434][ T6648]
[ 264.507447][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[ 264.509043][ T6648] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 264.514834][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 264.514847][ T27] Call Trace:
[ 264.528633][ T6648] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 264.538670][ T27]
[ 264.538681][ T27] dump_stack_lvl+0x188/0x250
[ 264.538704][ T27] ? show_regs_print_info+0x20/0x20
[ 264.563005][ T27] ? load_image+0x400/0x400
[ 264.567632][ T27] panic+0x2e5/0x810
[ 264.571553][ T27] ? schedule_preempt_disabled+0x20/0x20
[ 264.577480][ T27] ? bpf_jit_dump+0xd0/0xd0
[ 264.582155][ T27] ? __irq_work_queue_local+0x12c/0x190
[ 264.587701][ T27] ? nmi_trigger_cpumask_backtrace+0x260/0x280
[ 264.593868][ T27] watchdog+0xe4e/0xe50
[ 264.598040][ T27] kthread+0x436/0x520
[ 264.602114][ T27] ? hungtask_pm_notify+0x40/0x40
[ 264.607126][ T27] ? kthread_blkcg+0xd0/0xd0
[ 264.611719][ T27] ret_from_fork+0x1f/0x30
[ 264.616174][ T27]
[ 264.619680][ T27] Kernel Offset: disabled
[ 264.624011][ T27] Rebooting in 86400 seconds..