6][ T7418] do_syscall_64+0x14d/0xf80
[ 255.482567][ T7418] ? trace_irq_disable+0x3b/0x150
[ 255.482593][ T7418] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 255.482612][ T7418] ? clear_bhb_loop+0x40/0x90
[ 255.482639][ T7418] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 255.482658][ T7418] RIP: 0033:0x7fc53b39b5ca
[ 255.482677][ T7418] 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
[ 255.482694][ T7418] RSP: 002b:00007fc53c176e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.482715][ T7418] RAX: ffffffffffffffda RBX: 00007fc53c176ee0 RCX: 00007fc53b39b5ca
[ 255.482730][ T7418] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fc53c176ea0
[ 255.482744][ T7418] RBP: 000020000001f680 R08: 00007fc53c176ee0 R09: 0000000000000084
[ 255.482758][ T7418] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 255.482770][ T7418] R13: 00007fc53c176ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 255.482792][ T7418]
[ 255.483846][ T7418] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.829518][ T1300] ieee802154 phy0 wpan0: encryption failed: -22
[ 255.836501][ T1300] ieee802154 phy1 wpan1: encryption failed: -22
[ 255.858714][ T7418] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.084291][ T7420] loop5: detected capacity change from 0 to 32768
[ 256.152962][ T7420] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.179813][ T7420] CPU: 1 UID: 0 PID: 7420 Comm: syz.5.232 Not tainted syzkaller #0 PREEMPT(full)
[ 256.179842][ T7420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 256.179854][ T7420] Call Trace:
[ 256.179862][ T7420]
[ 256.179870][ T7420] dump_stack_lvl+0xe8/0x150
[ 256.179901][ T7420] sysfs_create_dir_ns+0x271/0x2a0
[ 256.179929][ T7420] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 256.179956][ T7420] ? do_raw_spin_unlock+0xf5/0x210
[ 256.179980][ T7420] kobject_add_internal+0x62b/0xd00
[ 256.180009][ T7420] kobject_init_and_add+0x12b/0x1a0
[ 256.180035][ T7420] ? __pfx_kobject_init_and_add+0x10/0x10
[ 256.180056][ T7420] ? __raw_spin_lock_init+0x45/0x100
[ 256.180077][ T7420] ? __init_swait_queue_head+0xa9/0x150
[ 256.180100][ T7420] gfs2_sys_fs_add+0x257/0x480
[ 256.180120][ T7420] ? is_dynamic_key+0x1ac/0x1c0
[ 256.180144][ T7420] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 256.180172][ T7420] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 256.180204][ T7420] gfs2_fill_super+0x13a7/0x21d0
[ 256.180243][ T7420] ? __pfx_gfs2_fill_super+0x10/0x10
[ 256.180272][ T7420] ? sb_set_blocksize+0x155/0x240
[ 256.180300][ T7420] ? setup_bdev_super+0x4c1/0x5b0
[ 256.180322][ T7420] get_tree_bdev_flags+0x431/0x4f0
[ 256.180343][ T7420] ? __pfx_gfs2_fill_super+0x10/0x10
[ 256.180366][ T7420] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 256.180385][ T7420] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 256.180419][ T7420] gfs2_get_tree+0x51/0x1e0
[ 256.180445][ T7420] vfs_get_tree+0x92/0x2a0
[ 256.180475][ T7420] do_new_mount+0x341/0xd30
[ 256.180498][ T7420] ? apparmor_capable+0x126/0x170
[ 256.180526][ T7420] ? __pfx_do_new_mount+0x10/0x10
[ 256.180551][ T7420] ? ns_capable+0x89/0xe0
[ 256.180585][ T7420] ? user_path_at+0xd4/0x160
[ 256.180615][ T7420] __se_sys_mount+0x31d/0x420
[ 256.180646][ T7420] ? __pfx___se_sys_mount+0x10/0x10
[ 256.180678][ T7420] ? __x64_sys_mount+0x20/0xc0
[ 256.180705][ T7420] do_syscall_64+0x14d/0xf80
[ 256.180723][ T7420] ? trace_irq_disable+0x3b/0x150
[ 256.180748][ T7420] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 256.180768][ T7420] ? clear_bhb_loop+0x40/0x90
[ 256.180792][ T7420] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 256.180811][ T7420] RIP: 0033:0x7f656819b5ca
[ 256.180830][ T7420] 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
[ 256.180847][ T7420] RSP: 002b:00007f6569010e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.180868][ T7420] RAX: ffffffffffffffda RBX: 00007f6569010ee0 RCX: 00007f656819b5ca
[ 256.180887][ T7420] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6569010ea0
[ 256.180902][ T7420] RBP: 000020000001f680 R08: 00007f6569010ee0 R09: 0000000000000084
[ 256.180915][ T7420] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 256.180928][ T7420] R13: 00007f6569010ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 256.180960][ T7420]
[ 256.181549][ T7420] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.517241][ T7420] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.792359][ T7426] loop0: detected capacity change from 0 to 32768
[ 256.815470][ T7426] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.829417][ T7426] CPU: 0 UID: 0 PID: 7426 Comm: syz.0.233 Not tainted syzkaller #0 PREEMPT(full)
[ 256.829446][ T7426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 256.829459][ T7426] Call Trace:
[ 256.829467][ T7426]
[ 256.829476][ T7426] dump_stack_lvl+0xe8/0x150
[ 256.829509][ T7426] sysfs_create_dir_ns+0x271/0x2a0
[ 256.829536][ T7426] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 256.829563][ T7426] ? do_raw_spin_unlock+0xf5/0x210
[ 256.829588][ T7426] kobject_add_internal+0x62b/0xd00
[ 256.829618][ T7426] kobject_init_and_add+0x12b/0x1a0
[ 256.829645][ T7426] ? __pfx_kobject_init_and_add+0x10/0x10
[ 256.829667][ T7426] ? __raw_spin_lock_init+0x45/0x100
[ 256.829689][ T7426] ? __init_swait_queue_head+0xa9/0x150
[ 256.829712][ T7426] gfs2_sys_fs_add+0x257/0x480
[ 256.829732][ T7426] ? is_dynamic_key+0x1ac/0x1c0
[ 256.829756][ T7426] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 256.829785][ T7426] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 256.829818][ T7426] gfs2_fill_super+0x13a7/0x21d0
[ 256.829859][ T7426] ? __pfx_gfs2_fill_super+0x10/0x10
[ 256.829888][ T7426] ? sb_set_blocksize+0x155/0x240
[ 256.829916][ T7426] ? setup_bdev_super+0x4c1/0x5b0
[ 256.829940][ T7426] get_tree_bdev_flags+0x431/0x4f0
[ 256.829962][ T7426] ? __pfx_gfs2_fill_super+0x10/0x10
[ 256.829986][ T7426] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 256.830004][ T7426] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 256.830038][ T7426] gfs2_get_tree+0x51/0x1e0
[ 256.830066][ T7426] vfs_get_tree+0x92/0x2a0
[ 256.830088][ T7426] do_new_mount+0x341/0xd30
[ 256.830112][ T7426] ? apparmor_capable+0x126/0x170
[ 256.830187][ T7426] ? __pfx_do_new_mount+0x10/0x10
[ 256.830212][ T7426] ? ns_capable+0x89/0xe0
[ 256.830246][ T7426] ? user_path_at+0xd4/0x160
[ 256.830275][ T7426] __se_sys_mount+0x31d/0x420
[ 256.830313][ T7426] ? __pfx___se_sys_mount+0x10/0x10
[ 256.830345][ T7426] ? __x64_sys_mount+0x20/0xc0
[ 256.830372][ T7426] do_syscall_64+0x14d/0xf80
[ 256.830389][ T7426] ? trace_irq_disable+0x3b/0x150
[ 256.830415][ T7426] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 256.830435][ T7426] ? clear_bhb_loop+0x40/0x90
[ 256.830459][ T7426] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 256.830478][ T7426] RIP: 0033:0x7f372f99b5ca
[ 256.830497][ T7426] 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
[ 256.830514][ T7426] RSP: 002b:00007f37308dae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.830536][ T7426] RAX: ffffffffffffffda RBX: 00007f37308daee0 RCX: 00007f372f99b5ca
[ 256.830550][ T7426] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f37308daea0
[ 256.830565][ T7426] RBP: 000020000001f680 R08: 00007f37308daee0 R09: 0000000000000084
[ 256.830579][ T7426] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 256.830592][ T7426] R13: 00007f37308daea0 R14: 000000000001f790 R15: 00002000000001c0
[ 256.830623][ T7426]
[ 256.830649][ T7426] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.169334][ T7426] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.232713][ T7430] loop3: detected capacity change from 0 to 32768
[ 257.299294][ T7430] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.308754][ T7430] CPU: 1 UID: 0 PID: 7430 Comm: syz.3.234 Not tainted syzkaller #0 PREEMPT(full)
[ 257.308782][ T7430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 257.308795][ T7430] Call Trace:
[ 257.308803][ T7430]
[ 257.308811][ T7430] dump_stack_lvl+0xe8/0x150
[ 257.308843][ T7430] sysfs_create_dir_ns+0x271/0x2a0
[ 257.308872][ T7430] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 257.308903][ T7430] ? do_raw_spin_unlock+0xf5/0x210
[ 257.308928][ T7430] kobject_add_internal+0x62b/0xd00
[ 257.308958][ T7430] kobject_init_and_add+0x12b/0x1a0
[ 257.308984][ T7430] ? __pfx_kobject_init_and_add+0x10/0x10
[ 257.309005][ T7430] ? __raw_spin_lock_init+0x45/0x100
[ 257.309026][ T7430] ? __init_swait_queue_head+0xa9/0x150
[ 257.309049][ T7430] gfs2_sys_fs_add+0x257/0x480
[ 257.309069][ T7430] ? is_dynamic_key+0x1ac/0x1c0
[ 257.309093][ T7430] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 257.309122][ T7430] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 257.309155][ T7430] gfs2_fill_super+0x13a7/0x21d0
[ 257.309195][ T7430] ? __pfx_gfs2_fill_super+0x10/0x10
[ 257.309224][ T7430] ? sb_set_blocksize+0x155/0x240
[ 257.309261][ T7430] ? setup_bdev_super+0x4c1/0x5b0
[ 257.309284][ T7430] get_tree_bdev_flags+0x431/0x4f0
[ 257.309305][ T7430] ? __pfx_gfs2_fill_super+0x10/0x10
[ 257.309329][ T7430] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 257.309348][ T7430] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 257.309386][ T7430] gfs2_get_tree+0x51/0x1e0
[ 257.309415][ T7430] vfs_get_tree+0x92/0x2a0
[ 257.309437][ T7430] do_new_mount+0x341/0xd30
[ 257.309460][ T7430] ? apparmor_capable+0x126/0x170
[ 257.309491][ T7430] ? __pfx_do_new_mount+0x10/0x10
[ 257.309515][ T7430] ? ns_capable+0x89/0xe0
[ 257.309550][ T7430] ? user_path_at+0xd4/0x160
[ 257.309579][ T7430] __se_sys_mount+0x31d/0x420
[ 257.309609][ T7430] ? __pfx___se_sys_mount+0x10/0x10
[ 257.309640][ T7430] ? __x64_sys_mount+0x20/0xc0
[ 257.309667][ T7430] do_syscall_64+0x14d/0xf80
[ 257.309684][ T7430] ? trace_irq_disable+0x3b/0x150
[ 257.309710][ T7430] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 257.309729][ T7430] ? clear_bhb_loop+0x40/0x90
[ 257.309752][ T7430] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 257.309771][ T7430] RIP: 0033:0x7f162ad9b5ca
[ 257.309790][ T7430] 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
[ 257.309807][ T7430] RSP: 002b:00007f162bc96e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.309827][ T7430] RAX: ffffffffffffffda RBX: 00007f162bc96ee0 RCX: 00007f162ad9b5ca
[ 257.309842][ T7430] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f162bc96ea0
[ 257.309856][ T7430] RBP: 000020000001f680 R08: 00007f162bc96ee0 R09: 0000000000000084
[ 257.309869][ T7430] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 257.309881][ T7430] R13: 00007f162bc96ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 257.309912][ T7430]
[ 257.309980][ T7430] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.616839][ T7430] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.874202][ T7432] loop2: detected capacity change from 0 to 32768
[ 257.948905][ T7432] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.956458][ T7432] CPU: 0 UID: 0 PID: 7432 Comm: syz.2.236 Not tainted syzkaller #0 PREEMPT(full)
[ 257.956481][ T7432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 257.956492][ T7432] Call Trace:
[ 257.956500][ T7432]
[ 257.956507][ T7432] dump_stack_lvl+0xe8/0x150
[ 257.956536][ T7432] sysfs_create_dir_ns+0x271/0x2a0
[ 257.956562][ T7432] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 257.956586][ T7432] ? do_raw_spin_unlock+0xf5/0x210
[ 257.956605][ T7432] kobject_add_internal+0x62b/0xd00
[ 257.956631][ T7432] kobject_init_and_add+0x12b/0x1a0
[ 257.956654][ T7432] ? __pfx_kobject_init_and_add+0x10/0x10
[ 257.956675][ T7432] ? __raw_spin_lock_init+0x45/0x100
[ 257.956694][ T7432] ? __init_swait_queue_head+0xa9/0x150
[ 257.956715][ T7432] gfs2_sys_fs_add+0x257/0x480
[ 257.956733][ T7432] ? is_dynamic_key+0x1ac/0x1c0
[ 257.956756][ T7432] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 257.956784][ T7432] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 257.956812][ T7432] gfs2_fill_super+0x13a7/0x21d0
[ 257.956849][ T7432] ? __pfx_gfs2_fill_super+0x10/0x10
[ 257.956875][ T7432] ? sb_set_blocksize+0x155/0x240
[ 257.956900][ T7432] ? setup_bdev_super+0x4c1/0x5b0
[ 257.956921][ T7432] get_tree_bdev_flags+0x431/0x4f0
[ 257.957080][ T7432] ? __pfx_gfs2_fill_super+0x10/0x10
[ 257.957110][ T7432] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 257.957129][ T7432] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 257.957164][ T7432] gfs2_get_tree+0x51/0x1e0
[ 257.957189][ T7432] vfs_get_tree+0x92/0x2a0
[ 257.957210][ T7432] do_new_mount+0x341/0xd30
[ 257.957233][ T7432] ? apparmor_capable+0x126/0x170
[ 257.957259][ T7432] ? __pfx_do_new_mount+0x10/0x10
[ 257.957281][ T7432] ? ns_capable+0x89/0xe0
[ 257.957312][ T7432] ? user_path_at+0xd4/0x160
[ 257.957342][ T7432] __se_sys_mount+0x31d/0x420
[ 257.957370][ T7432] ? __pfx___se_sys_mount+0x10/0x10
[ 257.957400][ T7432] ? __x64_sys_mount+0x20/0xc0
[ 257.957424][ T7432] do_syscall_64+0x14d/0xf80
[ 257.957442][ T7432] ? trace_irq_disable+0x3b/0x150
[ 257.957466][ T7432] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 257.957484][ T7432] ? clear_bhb_loop+0x40/0x90
[ 257.957505][ T7432] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 257.957523][ T7432] RIP: 0033:0x7f9dd639b5ca
[ 257.957542][ T7432] 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
[ 257.957559][ T7432] RSP: 002b:00007f9dd72dde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.957578][ T7432] RAX: ffffffffffffffda RBX: 00007f9dd72ddee0 RCX: 00007f9dd639b5ca
[ 257.957591][ T7432] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f9dd72ddea0
[ 257.957604][ T7432] RBP: 000020000001f680 R08: 00007f9dd72ddee0 R09: 0000000000000084
[ 257.957617][ T7432] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 257.957629][ T7432] R13: 00007f9dd72ddea0 R14: 000000000001f790 R15: 00002000000001c0
[ 257.957657][ T7432]
[ 257.957685][ T7432] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.050204][ T7436] loop4: detected capacity change from 0 to 32768
[ 258.091275][ T7432] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.309359][ T7436] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.324284][ T7436] CPU: 0 UID: 0 PID: 7436 Comm: syz.4.235 Not tainted syzkaller #0 PREEMPT(full)
[ 258.324310][ T7436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 258.324322][ T7436] Call Trace:
[ 258.324329][ T7436]
[ 258.324337][ T7436] dump_stack_lvl+0xe8/0x150
[ 258.324366][ T7436] sysfs_create_dir_ns+0x271/0x2a0
[ 258.324395][ T7436] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 258.324419][ T7436] ? do_raw_spin_unlock+0xf5/0x210
[ 258.324440][ T7436] kobject_add_internal+0x62b/0xd00
[ 258.324468][ T7436] kobject_init_and_add+0x12b/0x1a0
[ 258.324493][ T7436] ? __pfx_kobject_init_and_add+0x10/0x10
[ 258.324513][ T7436] ? __raw_spin_lock_init+0x45/0x100
[ 258.324531][ T7436] ? __init_swait_queue_head+0xa9/0x150
[ 258.324552][ T7436] gfs2_sys_fs_add+0x257/0x480
[ 258.324571][ T7436] ? is_dynamic_key+0x1ac/0x1c0
[ 258.324592][ T7436] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 258.324617][ T7436] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 258.324649][ T7436] gfs2_fill_super+0x13a7/0x21d0
[ 258.324688][ T7436] ? __pfx_gfs2_fill_super+0x10/0x10
[ 258.324715][ T7436] ? sb_set_blocksize+0x155/0x240
[ 258.324761][ T7436] ? setup_bdev_super+0x4c1/0x5b0
[ 258.324785][ T7436] get_tree_bdev_flags+0x431/0x4f0
[ 258.324816][ T7436] ? __pfx_gfs2_fill_super+0x10/0x10
[ 258.324840][ T7436] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 258.324857][ T7436] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 258.324997][ T7436] gfs2_get_tree+0x51/0x1e0
[ 258.325024][ T7436] vfs_get_tree+0x92/0x2a0
[ 258.325046][ T7436] do_new_mount+0x341/0xd30
[ 258.325069][ T7436] ? apparmor_capable+0x126/0x170
[ 258.325099][ T7436] ? __pfx_do_new_mount+0x10/0x10
[ 258.325122][ T7436] ? ns_capable+0x89/0xe0
[ 258.325151][ T7436] ? user_path_at+0xd4/0x160
[ 258.325174][ T7436] __se_sys_mount+0x31d/0x420
[ 258.325198][ T7436] ? __pfx___se_sys_mount+0x10/0x10
[ 258.325227][ T7436] ? __x64_sys_mount+0x20/0xc0
[ 258.325251][ T7436] do_syscall_64+0x14d/0xf80
[ 258.325268][ T7436] ? trace_irq_disable+0x3b/0x150
[ 258.325293][ T7436] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 258.325312][ T7436] ? clear_bhb_loop+0x40/0x90
[ 258.325335][ T7436] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 258.325353][ T7436] RIP: 0033:0x7fc53b39b5ca
[ 258.325371][ T7436] 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
[ 258.325387][ T7436] RSP: 002b:00007fc53c176e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.325408][ T7436] RAX: ffffffffffffffda RBX: 00007fc53c176ee0 RCX: 00007fc53b39b5ca
[ 258.325421][ T7436] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fc53c176ea0
[ 258.325434][ T7436] RBP: 000020000001f680 R08: 00007fc53c176ee0 R09: 0000000000000084
[ 258.325447][ T7436] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 258.325460][ T7436] R13: 00007fc53c176ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 258.325490][ T7436]
[ 258.325515][ T7436] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.711300][ T7436] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.730814][ T7440] loop5: detected capacity change from 0 to 32768
[ 258.796041][ T7440] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.824272][ T7440] CPU: 0 UID: 0 PID: 7440 Comm: syz.5.237 Not tainted syzkaller #0 PREEMPT(full)
[ 258.824300][ T7440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 258.824312][ T7440] Call Trace:
[ 258.824320][ T7440]
[ 258.824329][ T7440] dump_stack_lvl+0xe8/0x150
[ 258.824359][ T7440] sysfs_create_dir_ns+0x271/0x2a0
[ 258.824386][ T7440] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 258.824413][ T7440] ? do_raw_spin_unlock+0xf5/0x210
[ 258.824437][ T7440] kobject_add_internal+0x62b/0xd00
[ 258.824465][ T7440] kobject_init_and_add+0x12b/0x1a0
[ 258.824489][ T7440] ? __pfx_kobject_init_and_add+0x10/0x10
[ 258.824511][ T7440] ? __raw_spin_lock_init+0x45/0x100
[ 258.824539][ T7440] ? __init_swait_queue_head+0xa9/0x150
[ 258.824562][ T7440] gfs2_sys_fs_add+0x257/0x480
[ 258.824587][ T7440] ? is_dynamic_key+0x1ac/0x1c0
[ 258.824611][ T7440] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 258.824639][ T7440] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 258.824671][ T7440] gfs2_fill_super+0x13a7/0x21d0
[ 258.824708][ T7440] ? __pfx_gfs2_fill_super+0x10/0x10
[ 258.824736][ T7440] ? sb_set_blocksize+0x155/0x240
[ 258.824763][ T7440] ? setup_bdev_super+0x4c1/0x5b0
[ 258.824786][ T7440] get_tree_bdev_flags+0x431/0x4f0
[ 258.824807][ T7440] ? __pfx_gfs2_fill_super+0x10/0x10
[ 258.824831][ T7440] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 258.824849][ T7440] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 258.824883][ T7440] gfs2_get_tree+0x51/0x1e0
[ 258.824911][ T7440] vfs_get_tree+0x92/0x2a0
[ 258.824934][ T7440] do_new_mount+0x341/0xd30
[ 258.824957][ T7440] ? apparmor_capable+0x126/0x170
[ 258.824986][ T7440] ? __pfx_do_new_mount+0x10/0x10
[ 258.825010][ T7440] ? ns_capable+0x89/0xe0
[ 258.825043][ T7440] ? user_path_at+0xd4/0x160
[ 258.825073][ T7440] __se_sys_mount+0x31d/0x420
[ 258.825105][ T7440] ? __pfx___se_sys_mount+0x10/0x10
[ 258.825144][ T7440] ? __x64_sys_mount+0x20/0xc0
[ 258.825170][ T7440] do_syscall_64+0x14d/0xf80
[ 258.825186][ T7440] ? trace_irq_disable+0x3b/0x150
[ 258.825210][ T7440] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 258.825228][ T7440] ? clear_bhb_loop+0x40/0x90
[ 258.825250][ T7440] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 258.825268][ T7440] RIP: 0033:0x7f656819b5ca
[ 258.825287][ T7440] 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
[ 258.825304][ T7440] RSP: 002b:00007f6569010e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.825324][ T7440] RAX: ffffffffffffffda RBX: 00007f6569010ee0 RCX: 00007f656819b5ca
[ 258.825338][ T7440] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6569010ea0
[ 258.825352][ T7440] RBP: 000020000001f680 R08: 00007f6569010ee0 R09: 0000000000000084
[ 258.825365][ T7440] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 258.825377][ T7440] R13: 00007f6569010ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 258.825407][ T7440]
[ 258.825433][ T7440] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.143273][ T7440] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.592225][ T7446] loop3: detected capacity change from 0 to 32768
[ 259.638894][ T7446] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.646320][ T7446] CPU: 1 UID: 0 PID: 7446 Comm: syz.3.238 Not tainted syzkaller #0 PREEMPT(full)
[ 259.646343][ T7446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 259.646354][ T7446] Call Trace:
[ 259.646362][ T7446]
[ 259.646369][ T7446] dump_stack_lvl+0xe8/0x150
[ 259.646399][ T7446] sysfs_create_dir_ns+0x271/0x2a0
[ 259.646431][ T7446] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 259.646454][ T7446] ? do_raw_spin_unlock+0xf5/0x210
[ 259.646475][ T7446] kobject_add_internal+0x62b/0xd00
[ 259.646498][ T7446] kobject_init_and_add+0x12b/0x1a0
[ 259.646518][ T7446] ? __pfx_kobject_init_and_add+0x10/0x10
[ 259.646535][ T7446] ? __raw_spin_lock_init+0x45/0x100
[ 259.646552][ T7446] ? __init_swait_queue_head+0xa9/0x150
[ 259.646570][ T7446] gfs2_sys_fs_add+0x257/0x480
[ 259.646587][ T7446] ? is_dynamic_key+0x1ac/0x1c0
[ 259.646606][ T7446] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 259.646628][ T7446] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 259.646653][ T7446] gfs2_fill_super+0x13a7/0x21d0
[ 259.646684][ T7446] ? __pfx_gfs2_fill_super+0x10/0x10
[ 259.646708][ T7446] ? sb_set_blocksize+0x155/0x240
[ 259.646731][ T7446] ? setup_bdev_super+0x4c1/0x5b0
[ 259.646750][ T7446] get_tree_bdev_flags+0x431/0x4f0
[ 259.646766][ T7446] ? __pfx_gfs2_fill_super+0x10/0x10
[ 259.646791][ T7446] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 259.646806][ T7446] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 259.646835][ T7446] gfs2_get_tree+0x51/0x1e0
[ 259.646857][ T7446] vfs_get_tree+0x92/0x2a0
[ 259.646874][ T7446] do_new_mount+0x341/0xd30
[ 259.646893][ T7446] ? apparmor_capable+0x126/0x170
[ 259.646917][ T7446] ? __pfx_do_new_mount+0x10/0x10
[ 259.646936][ T7446] ? ns_capable+0x89/0xe0
[ 259.646962][ T7446] ? user_path_at+0xd4/0x160
[ 259.646986][ T7446] __se_sys_mount+0x31d/0x420
[ 259.647009][ T7446] ? __pfx___se_sys_mount+0x10/0x10
[ 259.647033][ T7446] ? __x64_sys_mount+0x20/0xc0
[ 259.647055][ T7446] do_syscall_64+0x14d/0xf80
[ 259.647068][ T7446] ? trace_irq_disable+0x3b/0x150
[ 259.647089][ T7446] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 259.647104][ T7446] ? clear_bhb_loop+0x40/0x90
[ 259.647122][ T7446] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 259.647137][ T7446] RIP: 0033:0x7f162ad9b5ca
[ 259.647153][ T7446] 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
[ 259.647167][ T7446] RSP: 002b:00007f162bc96e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.647183][ T7446] RAX: ffffffffffffffda RBX: 00007f162bc96ee0 RCX: 00007f162ad9b5ca
[ 259.647195][ T7446] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f162bc96ea0
[ 259.647207][ T7446] RBP: 000020000001f680 R08: 00007f162bc96ee0 R09: 0000000000000084
[ 259.647218][ T7446] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 259.647228][ T7446] R13: 00007f162bc96ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 259.647251][ T7446]
[ 259.647279][ T7446] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.805791][ T7448] loop0: detected capacity change from 0 to 32768
[ 259.965165][ T7446] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 260.015805][ T7448] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 260.035799][ T7448] CPU: 0 UID: 0 PID: 7448 Comm: syz.0.239 Not tainted syzkaller #0 PREEMPT(full)
[ 260.035827][ T7448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 260.035839][ T7448] Call Trace:
[ 260.035848][ T7448]
[ 260.035856][ T7448] dump_stack_lvl+0xe8/0x150
[ 260.035888][ T7448] sysfs_create_dir_ns+0x271/0x2a0
[ 260.035917][ T7448] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 260.035943][ T7448] ? do_raw_spin_unlock+0xf5/0x210
[ 260.035968][ T7448] kobject_add_internal+0x62b/0xd00
[ 260.035998][ T7448] kobject_init_and_add+0x12b/0x1a0
[ 260.036024][ T7448] ? __pfx_kobject_init_and_add+0x10/0x10
[ 260.036045][ T7448] ? __raw_spin_lock_init+0x45/0x100
[ 260.036065][ T7448] ? __init_swait_queue_head+0xa9/0x150
[ 260.036089][ T7448] gfs2_sys_fs_add+0x257/0x480
[ 260.036108][ T7448] ? is_dynamic_key+0x1ac/0x1c0
[ 260.036132][ T7448] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 260.036161][ T7448] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 260.036195][ T7448] gfs2_fill_super+0x13a7/0x21d0
[ 260.036235][ T7448] ? __pfx_gfs2_fill_super+0x10/0x10
[ 260.036264][ T7448] ? sb_set_blocksize+0x155/0x240
[ 260.036292][ T7448] ? setup_bdev_super+0x4c1/0x5b0
[ 260.036316][ T7448] get_tree_bdev_flags+0x431/0x4f0
[ 260.036337][ T7448] ? __pfx_gfs2_fill_super+0x10/0x10
[ 260.036361][ T7448] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 260.036380][ T7448] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 260.036417][ T7448] gfs2_get_tree+0x51/0x1e0
[ 260.036451][ T7448] vfs_get_tree+0x92/0x2a0
[ 260.036473][ T7448] do_new_mount+0x341/0xd30
[ 260.036496][ T7448] ? apparmor_capable+0x126/0x170
[ 260.036526][ T7448] ? __pfx_do_new_mount+0x10/0x10
[ 260.036550][ T7448] ? ns_capable+0x89/0xe0
[ 260.036583][ T7448] ? user_path_at+0xd4/0x160
[ 260.036612][ T7448] __se_sys_mount+0x31d/0x420
[ 260.036642][ T7448] ? __pfx___se_sys_mount+0x10/0x10
[ 260.036673][ T7448] ? __x64_sys_mount+0x20/0xc0
[ 260.036699][ T7448] do_syscall_64+0x14d/0xf80
[ 260.036717][ T7448] ? trace_irq_disable+0x3b/0x150
[ 260.036742][ T7448] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 260.036762][ T7448] ? clear_bhb_loop+0x40/0x90
[ 260.036791][ T7448] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 260.036810][ T7448] RIP: 0033:0x7f372f99b5ca
[ 260.036829][ T7448] 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
[ 260.036846][ T7448] RSP: 002b:00007f37308dae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 260.036866][ T7448] RAX: ffffffffffffffda RBX: 00007f37308daee0 RCX: 00007f372f99b5ca
[ 260.036881][ T7448] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f37308daea0
[ 260.036895][ T7448] RBP: 000020000001f680 R08: 00007f37308daee0 R09: 0000000000000084
[ 260.036908][ T7448] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 260.036921][ T7448] R13: 00007f37308daea0 R14: 000000000001f790 R15: 00002000000001c0
[ 260.036950][ T7448]
[ 260.036976][ T7448] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 260.348751][ T7448] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/02/13 13:26:23 executed programs: 237
[ 260.624501][ T7454] loop2: detected capacity change from 0 to 32768
[ 260.634674][ T7458] loop4: detected capacity change from 0 to 32768
[ 260.730058][ T7454] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 260.737582][ T7454] CPU: 0 UID: 0 PID: 7454 Comm: syz.2.240 Not tainted syzkaller #0 PREEMPT(full)
[ 260.737608][ T7454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 260.737621][ T7454] Call Trace:
[ 260.737629][ T7454]
[ 260.737638][ T7454] dump_stack_lvl+0xe8/0x150
[ 260.737670][ T7454] sysfs_create_dir_ns+0x271/0x2a0
[ 260.737698][ T7454] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 260.737725][ T7454] ? do_raw_spin_unlock+0xf5/0x210
[ 260.737749][ T7454] kobject_add_internal+0x62b/0xd00
[ 260.737780][ T7454] kobject_init_and_add+0x12b/0x1a0
[ 260.737806][ T7454] ? __pfx_kobject_init_and_add+0x10/0x10
[ 260.737829][ T7454] ? __raw_spin_lock_init+0x45/0x100
[ 260.737858][ T7454] ? __init_swait_queue_head+0xa9/0x150
[ 260.737896][ T7454] gfs2_sys_fs_add+0x257/0x480
[ 260.737916][ T7454] ? is_dynamic_key+0x1ac/0x1c0
[ 260.737940][ T7454] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 260.737971][ T7454] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 260.738004][ T7454] gfs2_fill_super+0x13a7/0x21d0
[ 260.738045][ T7454] ? __pfx_gfs2_fill_super+0x10/0x10
[ 260.738074][ T7454] ? sb_set_blocksize+0x155/0x240
[ 260.738102][ T7454] ? setup_bdev_super+0x4c1/0x5b0
[ 260.738126][ T7454] get_tree_bdev_flags+0x431/0x4f0
[ 260.738147][ T7454] ? __pfx_gfs2_fill_super+0x10/0x10
[ 260.738171][ T7454] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 260.738190][ T7454] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 260.738228][ T7454] gfs2_get_tree+0x51/0x1e0
[ 260.738256][ T7454] vfs_get_tree+0x92/0x2a0
[ 260.738279][ T7454] do_new_mount+0x341/0xd30
[ 260.738302][ T7454] ? apparmor_capable+0x126/0x170
[ 260.738333][ T7454] ? __pfx_do_new_mount+0x10/0x10
[ 260.738361][ T7454] ? ns_capable+0x89/0xe0
[ 260.738395][ T7454] ? user_path_at+0xd4/0x160
[ 260.738432][ T7454] __se_sys_mount+0x31d/0x420
[ 260.738468][ T7454] ? __pfx___se_sys_mount+0x10/0x10
[ 260.738499][ T7454] ? __x64_sys_mount+0x20/0xc0
[ 260.738527][ T7454] do_syscall_64+0x14d/0xf80
[ 260.738545][ T7454] ? trace_irq_disable+0x3b/0x150
[ 260.738571][ T7454] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 260.738590][ T7454] ? clear_bhb_loop+0x40/0x90
[ 260.738613][ T7454] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 260.738627][ T7454] RIP: 0033:0x7f9dd639b5ca
[ 260.738645][ T7454] 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
[ 260.738660][ T7454] RSP: 002b:00007f9dd72dde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 260.738678][ T7454] RAX: ffffffffffffffda RBX: 00007f9dd72ddee0 RCX: 00007f9dd639b5ca
[ 260.738691][ T7454] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f9dd72ddea0
[ 260.738702][ T7454] RBP: 000020000001f680 R08: 00007f9dd72ddee0 R09: 0000000000000084
[ 260.738714][ T7454] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 260.738725][ T7454] R13: 00007f9dd72ddea0 R14: 000000000001f790 R15: 00002000000001c0
[ 260.738751][ T7454]
[ 261.065251][ T7458] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.082884][ T7458] CPU: 1 UID: 0 PID: 7458 Comm: syz.4.242 Not tainted syzkaller #0 PREEMPT(full)
[ 261.082920][ T7458] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 261.082932][ T7458] Call Trace:
[ 261.082941][ T7458]
[ 261.082950][ T7458] dump_stack_lvl+0xe8/0x150
[ 261.082982][ T7458] sysfs_create_dir_ns+0x271/0x2a0
[ 261.083010][ T7458] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 261.083037][ T7458] ? do_raw_spin_unlock+0xf5/0x210
[ 261.083062][ T7458] kobject_add_internal+0x62b/0xd00
[ 261.083092][ T7458] kobject_init_and_add+0x12b/0x1a0
[ 261.083118][ T7458] ? __pfx_kobject_init_and_add+0x10/0x10
[ 261.083141][ T7458] ? __raw_spin_lock_init+0x45/0x100
[ 261.083162][ T7458] ? __init_swait_queue_head+0xa9/0x150
[ 261.083186][ T7458] gfs2_sys_fs_add+0x257/0x480
[ 261.083205][ T7458] ? is_dynamic_key+0x1ac/0x1c0
[ 261.083229][ T7458] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 261.083258][ T7458] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 261.083290][ T7458] gfs2_fill_super+0x13a7/0x21d0
[ 261.083330][ T7458] ? __pfx_gfs2_fill_super+0x10/0x10
[ 261.083358][ T7458] ? sb_set_blocksize+0x155/0x240
[ 261.083387][ T7458] ? setup_bdev_super+0x4c1/0x5b0
[ 261.083409][ T7458] get_tree_bdev_flags+0x431/0x4f0
[ 261.083430][ T7458] ? __pfx_gfs2_fill_super+0x10/0x10
[ 261.083455][ T7458] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 261.083473][ T7458] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 261.083510][ T7458] gfs2_get_tree+0x51/0x1e0
[ 261.083538][ T7458] vfs_get_tree+0x92/0x2a0
[ 261.083560][ T7458] do_new_mount+0x341/0xd30
[ 261.083583][ T7458] ? apparmor_capable+0x126/0x170
[ 261.083613][ T7458] ? __pfx_do_new_mount+0x10/0x10
[ 261.083637][ T7458] ? ns_capable+0x89/0xe0
[ 261.083669][ T7458] ? user_path_at+0xd4/0x160
[ 261.083699][ T7458] __se_sys_mount+0x31d/0x420
[ 261.083730][ T7458] ? __pfx___se_sys_mount+0x10/0x10
[ 261.083761][ T7458] ? __x64_sys_mount+0x20/0xc0
[ 261.083788][ T7458] do_syscall_64+0x14d/0xf80
[ 261.083806][ T7458] ? trace_irq_disable+0x3b/0x150
[ 261.083832][ T7458] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 261.083850][ T7458] ? clear_bhb_loop+0x40/0x90
[ 261.083874][ T7458] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 261.083893][ T7458] RIP: 0033:0x7fc53b39b5ca
[ 261.083918][ T7458] 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
[ 261.083936][ T7458] RSP: 002b:00007fc53c176e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 261.083957][ T7458] RAX: ffffffffffffffda RBX: 00007fc53c176ee0 RCX: 00007fc53b39b5ca
[ 261.083972][ T7458] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fc53c176ea0
[ 261.083985][ T7458] RBP: 000020000001f680 R08: 00007fc53c176ee0 R09: 0000000000000084
[ 261.083999][ T7458] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 261.084012][ T7458] R13: 00007fc53c176ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 261.084042][ T7458]
[ 261.084119][ T7458] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 261.308377][ T7469] loop0: detected capacity change from 0 to 32768
[ 261.323341][ T7454] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 261.459974][ T7454] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 261.476347][ T7458] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 261.518986][ T7456] loop5: detected capacity change from 0 to 32768
[ 261.549728][ T7469] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.558383][ T7469] CPU: 0 UID: 0 PID: 7469 Comm: syz.0.244 Not tainted syzkaller #0 PREEMPT(full)
[ 261.558411][ T7469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 261.558424][ T7469] Call Trace:
[ 261.558432][ T7469]
[ 261.558441][ T7469] dump_stack_lvl+0xe8/0x150
[ 261.558474][ T7469] sysfs_create_dir_ns+0x271/0x2a0
[ 261.558502][ T7469] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 261.558529][ T7469] ? do_raw_spin_unlock+0xf5/0x210
[ 261.558553][ T7469] kobject_add_internal+0x62b/0xd00
[ 261.558581][ T7469] kobject_init_and_add+0x12b/0x1a0
[ 261.558611][ T7469] ? __pfx_kobject_init_and_add+0x10/0x10
[ 261.558629][ T7469] ? __raw_spin_lock_init+0x45/0x100
[ 261.558650][ T7469] ? __init_swait_queue_head+0xa9/0x150
[ 261.558671][ T7469] gfs2_sys_fs_add+0x257/0x480
[ 261.558692][ T7469] ? is_dynamic_key+0x1ac/0x1c0
[ 261.558716][ T7469] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 261.558746][ T7469] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 261.558777][ T7469] gfs2_fill_super+0x13a7/0x21d0
[ 261.558824][ T7469] ? __pfx_gfs2_fill_super+0x10/0x10
[ 261.558854][ T7469] ? sb_set_blocksize+0x155/0x240
[ 261.558883][ T7469] ? setup_bdev_super+0x4c1/0x5b0
[ 261.558907][ T7469] get_tree_bdev_flags+0x431/0x4f0
[ 261.558928][ T7469] ? __pfx_gfs2_fill_super+0x10/0x10
[ 261.558953][ T7469] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 261.558969][ T7469] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 261.559001][ T7469] gfs2_get_tree+0x51/0x1e0
[ 261.559028][ T7469] vfs_get_tree+0x92/0x2a0
[ 261.559050][ T7469] do_new_mount+0x341/0xd30
[ 261.559074][ T7469] ? apparmor_capable+0x126/0x170
[ 261.559104][ T7469] ? __pfx_do_new_mount+0x10/0x10
[ 261.559129][ T7469] ? ns_capable+0x89/0xe0
[ 261.559161][ T7469] ? user_path_at+0xd4/0x160
[ 261.559187][ T7469] __se_sys_mount+0x31d/0x420
[ 261.559214][ T7469] ? __pfx___se_sys_mount+0x10/0x10
[ 261.559242][ T7469] ? __x64_sys_mount+0x20/0xc0
[ 261.559266][ T7469] do_syscall_64+0x14d/0xf80
[ 261.559283][ T7469] ? trace_irq_disable+0x3b/0x150
[ 261.559307][ T7469] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 261.559327][ T7469] ? clear_bhb_loop+0x40/0x90
[ 261.559350][ T7469] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 261.559367][ T7469] RIP: 0033:0x7f372f99b5ca
[ 261.559385][ T7469] 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
[ 261.559402][ T7469] RSP: 002b:00007f37308dae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 261.559422][ T7469] RAX: ffffffffffffffda RBX: 00007f37308daee0 RCX: 00007f372f99b5ca
[ 261.559437][ T7469] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f37308daea0
[ 261.559451][ T7469] RBP: 000020000001f680 R08: 00007f37308daee0 R09: 0000000000000084
[ 261.559465][ T7469] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 261.559479][ T7469] R13: 00007f37308daea0 R14: 000000000001f790 R15: 00002000000001c0
[ 261.559509][ T7469]
[ 261.646341][ T7464] loop3: detected capacity change from 0 to 32768
[ 261.865174][ T7469] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 261.886181][ T7469] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 261.894065][ T7456] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.928763][ T7456] CPU: 1 UID: 0 PID: 7456 Comm: syz.5.241 Not tainted syzkaller #0 PREEMPT(full)
[ 261.928798][ T7456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 261.928811][ T7456] Call Trace:
[ 261.928819][ T7456]
[ 261.928828][ T7456] dump_stack_lvl+0xe8/0x150
[ 261.928860][ T7456] sysfs_create_dir_ns+0x271/0x2a0
[ 261.928889][ T7456] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 261.928915][ T7456] ? do_raw_spin_unlock+0xf5/0x210
[ 261.928939][ T7456] kobject_add_internal+0x62b/0xd00
[ 261.928968][ T7456] kobject_init_and_add+0x12b/0x1a0
[ 261.928994][ T7456] ? __pfx_kobject_init_and_add+0x10/0x10
[ 261.929016][ T7456] ? __raw_spin_lock_init+0x45/0x100
[ 261.929038][ T7456] ? __init_swait_queue_head+0xa9/0x150
[ 261.929061][ T7456] gfs2_sys_fs_add+0x257/0x480
[ 261.929082][ T7456] ? is_dynamic_key+0x1ac/0x1c0
[ 261.929106][ T7456] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 261.929136][ T7456] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 261.929171][ T7456] gfs2_fill_super+0x13a7/0x21d0
[ 261.929212][ T7456] ? __pfx_gfs2_fill_super+0x10/0x10
[ 261.929241][ T7456] ? sb_set_blocksize+0x155/0x240
[ 261.929270][ T7456] ? setup_bdev_super+0x4c1/0x5b0
[ 261.929294][ T7456] get_tree_bdev_flags+0x431/0x4f0
[ 261.929315][ T7456] ? __pfx_gfs2_fill_super+0x10/0x10
[ 261.929340][ T7456] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 261.929358][ T7456] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 261.929396][ T7456] gfs2_get_tree+0x51/0x1e0
[ 261.929424][ T7456] vfs_get_tree+0x92/0x2a0
[ 261.929447][ T7456] do_new_mount+0x341/0xd30
[ 261.929470][ T7456] ? apparmor_capable+0x126/0x170
[ 261.929501][ T7456] ? __pfx_do_new_mount+0x10/0x10
[ 261.929525][ T7456] ? ns_capable+0x89/0xe0
[ 261.929558][ T7456] ? user_path_at+0xd4/0x160
[ 261.929587][ T7456] __se_sys_mount+0x31d/0x420
[ 261.929618][ T7456] ? __pfx___se_sys_mount+0x10/0x10
[ 261.929648][ T7456] ? __x64_sys_mount+0x20/0xc0
[ 261.929681][ T7456] do_syscall_64+0x14d/0xf80
[ 261.929699][ T7456] ? trace_irq_disable+0x3b/0x150
[ 261.929725][ T7456] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 261.929745][ T7456] ? clear_bhb_loop+0x40/0x90
[ 261.929768][ T7456] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 261.929794][ T7456] RIP: 0033:0x7f656819b5ca
[ 261.929814][ T7456] 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
[ 261.929831][ T7456] RSP: 002b:00007f6569010e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 261.929853][ T7456] RAX: ffffffffffffffda RBX: 00007f6569010ee0 RCX: 00007f656819b5ca
[ 261.929868][ T7456] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6569010ea0
[ 261.929882][ T7456] RBP: 000020000001f680 R08: 00007f6569010ee0 R09: 0000000000000084
[ 261.929895][ T7456] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 261.929908][ T7456] R13: 00007f6569010ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 261.929939][ T7456]
[ 261.929965][ T7456] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 262.044032][ T7464] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 262.049850][ T7456] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 262.258849][ T7464] CPU: 1 UID: 0 PID: 7464 Comm: syz.3.243 Not tainted syzkaller #0 PREEMPT(full)
[ 262.258875][ T7464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 262.258887][ T7464] Call Trace:
[ 262.258895][ T7464]
[ 262.258903][ T7464] dump_stack_lvl+0xe8/0x150
[ 262.258934][ T7464] sysfs_create_dir_ns+0x271/0x2a0
[ 262.258962][ T7464] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 262.258989][ T7464] ? do_raw_spin_unlock+0xf5/0x210
[ 262.259013][ T7464] kobject_add_internal+0x62b/0xd00
[ 262.259043][ T7464] kobject_init_and_add+0x12b/0x1a0
[ 262.259069][ T7464] ? __pfx_kobject_init_and_add+0x10/0x10
[ 262.259091][ T7464] ? __raw_spin_lock_init+0x45/0x100
[ 262.259112][ T7464] ? __init_swait_queue_head+0xa9/0x150
[ 262.259135][ T7464] gfs2_sys_fs_add+0x257/0x480
[ 262.259155][ T7464] ? is_dynamic_key+0x1ac/0x1c0
[ 262.259178][ T7464] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 262.259207][ T7464] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 262.259240][ T7464] gfs2_fill_super+0x13a7/0x21d0
[ 262.259280][ T7464] ? __pfx_gfs2_fill_super+0x10/0x10
[ 262.259309][ T7464] ? sb_set_blocksize+0x155/0x240
[ 262.259338][ T7464] ? setup_bdev_super+0x4c1/0x5b0
[ 262.259361][ T7464] get_tree_bdev_flags+0x431/0x4f0
[ 262.259383][ T7464] ? __pfx_gfs2_fill_super+0x10/0x10
[ 262.259406][ T7464] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 262.259425][ T7464] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 262.259461][ T7464] gfs2_get_tree+0x51/0x1e0
[ 262.259490][ T7464] vfs_get_tree+0x92/0x2a0
[ 262.259513][ T7464] do_new_mount+0x341/0xd30
[ 262.259536][ T7464] ? apparmor_capable+0x126/0x170
[ 262.259566][ T7464] ? __pfx_do_new_mount+0x10/0x10
[ 262.259589][ T7464] ? ns_capable+0x89/0xe0
[ 262.259624][ T7464] ? user_path_at+0xd4/0x160
[ 262.259654][ T7464] __se_sys_mount+0x31d/0x420
[ 262.259685][ T7464] ? __pfx___se_sys_mount+0x10/0x10
[ 262.259724][ T7464] ? __x64_sys_mount+0x20/0xc0
[ 262.259750][ T7464] do_syscall_64+0x14d/0xf80
[ 262.259767][ T7464] ? trace_irq_disable+0x3b/0x150
[ 262.259794][ T7464] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 262.259813][ T7464] ? clear_bhb_loop+0x40/0x90
[ 262.259836][ T7464] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 262.259855][ T7464] RIP: 0033:0x7f162ad9b5ca
[ 262.259874][ T7464] 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
[ 262.259891][ T7464] RSP: 002b:00007f162bc96e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 262.259912][ T7464] RAX: ffffffffffffffda RBX: 00007f162bc96ee0 RCX: 00007f162ad9b5ca
[ 262.259926][ T7464] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f162bc96ea0
[ 262.259939][ T7464] RBP: 000020000001f680 R08: 00007f162bc96ee0 R09: 0000000000000084
[ 262.259952][ T7464] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 262.259963][ T7464] R13: 00007f162bc96ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 262.259989][ T7464]
[ 262.260014][ T7464] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 262.569195][ T7464] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 263.556235][ T7480] loop5: detected capacity change from 0 to 32768
[ 263.603222][ T7480] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 263.605109][ T7478] loop2: detected capacity change from 0 to 32768
[ 263.630792][ T7480] CPU: 1 UID: 0 PID: 7480 Comm: syz.5.246 Not tainted syzkaller #0 PREEMPT(full)
[ 263.630821][ T7480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 263.630833][ T7480] Call Trace:
[ 263.630841][ T7480]
[ 263.630850][ T7480] dump_stack_lvl+0xe8/0x150
[ 263.630881][ T7480] sysfs_create_dir_ns+0x271/0x2a0
[ 263.630909][ T7480] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 263.630946][ T7480] ? do_raw_spin_unlock+0xf5/0x210
[ 263.630970][ T7480] kobject_add_internal+0x62b/0xd00
[ 263.630999][ T7480] kobject_init_and_add+0x12b/0x1a0
[ 263.631025][ T7480] ? __pfx_kobject_init_and_add+0x10/0x10
[ 263.631047][ T7480] ? __raw_spin_lock_init+0x45/0x100
[ 263.631068][ T7480] ? __init_swait_queue_head+0xa9/0x150
[ 263.631092][ T7480] gfs2_sys_fs_add+0x257/0x480
[ 263.631112][ T7480] ? is_dynamic_key+0x1ac/0x1c0
[ 263.631136][ T7480] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 263.631168][ T7480] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 263.631201][ T7480] gfs2_fill_super+0x13a7/0x21d0
[ 263.631241][ T7480] ? __pfx_gfs2_fill_super+0x10/0x10
[ 263.631271][ T7480] ? sb_set_blocksize+0x155/0x240
[ 263.631298][ T7480] ? setup_bdev_super+0x4c1/0x5b0
[ 263.631321][ T7480] get_tree_bdev_flags+0x431/0x4f0
[ 263.631343][ T7480] ? __pfx_gfs2_fill_super+0x10/0x10
[ 263.631367][ T7480] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 263.631385][ T7480] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 263.631423][ T7480] gfs2_get_tree+0x51/0x1e0
[ 263.631452][ T7480] vfs_get_tree+0x92/0x2a0
[ 263.631474][ T7480] do_new_mount+0x341/0xd30
[ 263.631497][ T7480] ? apparmor_capable+0x126/0x170
[ 263.631527][ T7480] ? __pfx_do_new_mount+0x10/0x10
[ 263.631551][ T7480] ? ns_capable+0x89/0xe0
[ 263.631591][ T7480] ? user_path_at+0xd4/0x160
[ 263.631621][ T7480] __se_sys_mount+0x31d/0x420
[ 263.631652][ T7480] ? __pfx___se_sys_mount+0x10/0x10
[ 263.631684][ T7480] ? __x64_sys_mount+0x20/0xc0
[ 263.631710][ T7480] do_syscall_64+0x14d/0xf80
[ 263.631727][ T7480] ? trace_irq_disable+0x3b/0x150
[ 263.631752][ T7480] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 263.631772][ T7480] ? clear_bhb_loop+0x40/0x90
[ 263.631795][ T7480] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 263.631814][ T7480] RIP: 0033:0x7f656819b5ca
[ 263.631832][ T7480] 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
[ 263.631849][ T7480] RSP: 002b:00007f6569010e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 263.631870][ T7480] RAX: ffffffffffffffda RBX: 00007f6569010ee0 RCX: 00007f656819b5ca
[ 263.631885][ T7480] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6569010ea0
[ 263.631899][ T7480] RBP: 000020000001f680 R08: 00007f6569010ee0 R09: 0000000000000084
[ 263.631912][ T7480] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 263.631924][ T7480] R13: 00007f6569010ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 263.631955][ T7480]
[ 263.632014][ T7480] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 263.958893][ T7480] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 263.960888][ T7478] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 264.044297][ T7478] CPU: 0 UID: 0 PID: 7478 Comm: syz.2.245 Not tainted syzkaller #0 PREEMPT(full)
[ 264.044324][ T7478] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 264.044336][ T7478] Call Trace:
[ 264.044345][ T7478]
[ 264.044353][ T7478] dump_stack_lvl+0xe8/0x150
[ 264.044385][ T7478] sysfs_create_dir_ns+0x271/0x2a0
[ 264.044414][ T7478] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 264.044440][ T7478] ? do_raw_spin_unlock+0xf5/0x210
[ 264.044464][ T7478] kobject_add_internal+0x62b/0xd00
[ 264.044494][ T7478] kobject_init_and_add+0x12b/0x1a0
[ 264.044520][ T7478] ? __pfx_kobject_init_and_add+0x10/0x10
[ 264.044549][ T7478] ? __raw_spin_lock_init+0x45/0x100
[ 264.044571][ T7478] ? __init_swait_queue_head+0xa9/0x150
[ 264.044594][ T7478] gfs2_sys_fs_add+0x257/0x480
[ 264.044615][ T7478] ? is_dynamic_key+0x1ac/0x1c0
[ 264.044638][ T7478] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 264.044667][ T7478] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 264.044700][ T7478] gfs2_fill_super+0x13a7/0x21d0
[ 264.044738][ T7478] ? __pfx_gfs2_fill_super+0x10/0x10
[ 264.044768][ T7478] ? sb_set_blocksize+0x155/0x240
[ 264.044796][ T7478] ? setup_bdev_super+0x4c1/0x5b0
[ 264.044820][ T7478] get_tree_bdev_flags+0x431/0x4f0
[ 264.044841][ T7478] ? __pfx_gfs2_fill_super+0x10/0x10
[ 264.044865][ T7478] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 264.044883][ T7478] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 264.044921][ T7478] gfs2_get_tree+0x51/0x1e0
[ 264.044950][ T7478] vfs_get_tree+0x92/0x2a0
[ 264.044972][ T7478] do_new_mount+0x341/0xd30
[ 264.044995][ T7478] ? apparmor_capable+0x126/0x170
[ 264.045025][ T7478] ? __pfx_do_new_mount+0x10/0x10
[ 264.045050][ T7478] ? ns_capable+0x89/0xe0
[ 264.045084][ T7478] ? user_path_at+0xd4/0x160
[ 264.045114][ T7478] __se_sys_mount+0x31d/0x420
[ 264.045145][ T7478] ? __pfx___se_sys_mount+0x10/0x10
[ 264.045177][ T7478] ? __x64_sys_mount+0x20/0xc0
[ 264.045204][ T7478] do_syscall_64+0x14d/0xf80
[ 264.045221][ T7478] ? trace_irq_disable+0x3b/0x150
[ 264.045246][ T7478] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 264.045267][ T7478] ? clear_bhb_loop+0x40/0x90
[ 264.045289][ T7478] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 264.045307][ T7478] RIP: 0033:0x7f9dd639b5ca
[ 264.045325][ T7478] 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
[ 264.045341][ T7478] RSP: 002b:00007f9dd72dde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 264.045361][ T7478] RAX: ffffffffffffffda RBX: 00007f9dd72ddee0 RCX: 00007f9dd639b5ca
[ 264.045375][ T7478] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f9dd72ddea0
[ 264.045389][ T7478] RBP: 000020000001f680 R08: 00007f9dd72ddee0 R09: 0000000000000084
[ 264.045402][ T7478] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 264.045415][ T7478] R13: 00007f9dd72ddea0 R14: 000000000001f790 R15: 00002000000001c0
[ 264.045445][ T7478]
[ 264.045470][ T7478] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 264.137662][ T7484] loop0: detected capacity change from 0 to 32768
[ 264.198762][ T7478] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 264.398875][ T7484] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 264.406495][ T7484] CPU: 0 UID: 0 PID: 7484 Comm: syz.0.248 Not tainted syzkaller #0 PREEMPT(full)
[ 264.406517][ T7484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 264.406527][ T7484] Call Trace:
[ 264.406535][ T7484]
[ 264.406542][ T7484] dump_stack_lvl+0xe8/0x150
[ 264.406572][ T7484] sysfs_create_dir_ns+0x271/0x2a0
[ 264.406597][ T7484] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 264.406621][ T7484] ? do_raw_spin_unlock+0xf5/0x210
[ 264.406644][ T7484] kobject_add_internal+0x62b/0xd00
[ 264.406673][ T7484] kobject_init_and_add+0x12b/0x1a0
[ 264.406699][ T7484] ? __pfx_kobject_init_and_add+0x10/0x10
[ 264.406720][ T7484] ? __raw_spin_lock_init+0x45/0x100
[ 264.406741][ T7484] ? __init_swait_queue_head+0xa9/0x150
[ 264.406764][ T7484] gfs2_sys_fs_add+0x257/0x480
[ 264.406785][ T7484] ? is_dynamic_key+0x1ac/0x1c0
[ 264.406809][ T7484] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 264.406838][ T7484] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 264.406871][ T7484] gfs2_fill_super+0x13a7/0x21d0
[ 264.406911][ T7484] ? __pfx_gfs2_fill_super+0x10/0x10
[ 264.406946][ T7484] ? sb_set_blocksize+0x155/0x240
[ 264.406974][ T7484] ? setup_bdev_super+0x4c1/0x5b0
[ 264.406996][ T7484] get_tree_bdev_flags+0x431/0x4f0
[ 264.407018][ T7484] ? __pfx_gfs2_fill_super+0x10/0x10
[ 264.407041][ T7484] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 264.407059][ T7484] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 264.407097][ T7484] gfs2_get_tree+0x51/0x1e0
[ 264.407125][ T7484] vfs_get_tree+0x92/0x2a0
[ 264.407147][ T7484] do_new_mount+0x341/0xd30
[ 264.407170][ T7484] ? apparmor_capable+0x126/0x170
[ 264.407198][ T7484] ? __pfx_do_new_mount+0x10/0x10
[ 264.407218][ T7484] ? ns_capable+0x89/0xe0
[ 264.407254][ T7484] ? user_path_at+0xd4/0x160
[ 264.407282][ T7484] __se_sys_mount+0x31d/0x420
[ 264.407310][ T7484] ? __pfx___se_sys_mount+0x10/0x10
[ 264.407337][ T7484] ? __x64_sys_mount+0x20/0xc0
[ 264.407361][ T7484] do_syscall_64+0x14d/0xf80
[ 264.407376][ T7484] ? trace_irq_disable+0x3b/0x150
[ 264.407399][ T7484] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 264.407416][ T7484] ? clear_bhb_loop+0x40/0x90
[ 264.407436][ T7484] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 264.407452][ T7484] RIP: 0033:0x7f372f99b5ca
[ 264.407470][ T7484] 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
[ 264.407485][ T7484] RSP: 002b:00007f37308dae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 264.407505][ T7484] RAX: ffffffffffffffda RBX: 00007f37308daee0 RCX: 00007f372f99b5ca
[ 264.407519][ T7484] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f37308daea0
[ 264.407533][ T7484] RBP: 000020000001f680 R08: 00007f37308daee0 R09: 0000000000000084
[ 264.407545][ T7484] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 264.407555][ T7484] R13: 00007f37308daea0 R14: 000000000001f790 R15: 00002000000001c0
[ 264.407579][ T7484]
[ 264.407603][ T7484] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 264.731028][ T7482] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 264.749349][ T7484] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 264.808944][ T7482] CPU: 1 UID: 0 PID: 7482 Comm: syz.4.247 Not tainted syzkaller #0 PREEMPT(full)
[ 264.808972][ T7482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 264.808984][ T7482] Call Trace:
[ 264.808992][ T7482]
[ 264.809000][ T7482] dump_stack_lvl+0xe8/0x150
[ 264.809032][ T7482] sysfs_create_dir_ns+0x271/0x2a0
[ 264.809061][ T7482] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 264.809088][ T7482] ? do_raw_spin_unlock+0xf5/0x210
[ 264.809112][ T7482] kobject_add_internal+0x62b/0xd00
[ 264.809142][ T7482] kobject_init_and_add+0x12b/0x1a0
[ 264.809177][ T7482] ? __pfx_kobject_init_and_add+0x10/0x10
[ 264.809199][ T7482] ? __raw_spin_lock_init+0x45/0x100
[ 264.809219][ T7482] ? __init_swait_queue_head+0xa9/0x150
[ 264.809243][ T7482] gfs2_sys_fs_add+0x257/0x480
[ 264.809263][ T7482] ? is_dynamic_key+0x1ac/0x1c0
[ 264.809287][ T7482] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 264.809315][ T7482] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 264.809347][ T7482] gfs2_fill_super+0x13a7/0x21d0
[ 264.809389][ T7482] ? __pfx_gfs2_fill_super+0x10/0x10
[ 264.809418][ T7482] ? sb_set_blocksize+0x155/0x240
[ 264.809445][ T7482] ? setup_bdev_super+0x4c1/0x5b0
[ 264.809468][ T7482] get_tree_bdev_flags+0x431/0x4f0
[ 264.809489][ T7482] ? __pfx_gfs2_fill_super+0x10/0x10
[ 264.809514][ T7482] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 264.809532][ T7482] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 264.809570][ T7482] gfs2_get_tree+0x51/0x1e0
[ 264.809597][ T7482] vfs_get_tree+0x92/0x2a0
[ 264.809619][ T7482] do_new_mount+0x341/0xd30
[ 264.809642][ T7482] ? apparmor_capable+0x126/0x170
[ 264.809673][ T7482] ? __pfx_do_new_mount+0x10/0x10
[ 264.809697][ T7482] ? ns_capable+0x89/0xe0
[ 264.809730][ T7482] ? user_path_at+0xd4/0x160
[ 264.809760][ T7482] __se_sys_mount+0x31d/0x420
[ 264.809790][ T7482] ? __pfx___se_sys_mount+0x10/0x10
[ 264.809821][ T7482] ? __x64_sys_mount+0x20/0xc0
[ 264.809846][ T7482] do_syscall_64+0x14d/0xf80
[ 264.809863][ T7482] ? trace_irq_disable+0x3b/0x150
[ 264.809888][ T7482] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 264.809907][ T7482] ? clear_bhb_loop+0x40/0x90
[ 264.809935][ T7482] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 264.809954][ T7482] RIP: 0033:0x7fc53b39b5ca
[ 264.809974][ T7482] 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
[ 264.809990][ T7482] RSP: 002b:00007fc53c176e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 264.810012][ T7482] RAX: ffffffffffffffda RBX: 00007fc53c176ee0 RCX: 00007fc53b39b5ca
[ 264.810026][ T7482] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fc53c176ea0
[ 264.810041][ T7482] RBP: 000020000001f680 R08: 00007fc53c176ee0 R09: 0000000000000084
[ 264.810054][ T7482] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 264.810067][ T7482] R13: 00007fc53c176ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 264.810098][ T7482]
[ 264.810125][ T7482] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 264.888949][ T7486] set_capacity_and_notify: 1 callbacks suppressed
[ 264.888968][ T7486] loop3: detected capacity change from 0 to 32768
[ 265.048701][ T7482] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 265.197219][ T7486] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 265.208179][ T7486] CPU: 1 UID: 0 PID: 7486 Comm: syz.3.249 Not tainted syzkaller #0 PREEMPT(full)
[ 265.208207][ T7486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 265.208219][ T7486] Call Trace:
[ 265.208227][ T7486]
[ 265.208236][ T7486] dump_stack_lvl+0xe8/0x150
[ 265.208268][ T7486] sysfs_create_dir_ns+0x271/0x2a0
[ 265.208295][ T7486] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 265.208322][ T7486] ? do_raw_spin_unlock+0xf5/0x210
[ 265.208348][ T7486] kobject_add_internal+0x62b/0xd00
[ 265.208379][ T7486] kobject_init_and_add+0x12b/0x1a0
[ 265.208415][ T7486] ? __pfx_kobject_init_and_add+0x10/0x10
[ 265.208435][ T7486] ? __raw_spin_lock_init+0x45/0x100
[ 265.208456][ T7486] ? __init_swait_queue_head+0xa9/0x150
[ 265.208478][ T7486] gfs2_sys_fs_add+0x257/0x480
[ 265.208496][ T7486] ? is_dynamic_key+0x1ac/0x1c0
[ 265.208520][ T7486] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 265.208546][ T7486] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 265.208577][ T7486] gfs2_fill_super+0x13a7/0x21d0
[ 265.208619][ T7486] ? __pfx_gfs2_fill_super+0x10/0x10
[ 265.208643][ T7486] ? sb_set_blocksize+0x155/0x240
[ 265.208671][ T7486] ? setup_bdev_super+0x4c1/0x5b0
[ 265.208692][ T7486] get_tree_bdev_flags+0x431/0x4f0
[ 265.208711][ T7486] ? __pfx_gfs2_fill_super+0x10/0x10
[ 265.208733][ T7486] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 265.208750][ T7486] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 265.208788][ T7486] gfs2_get_tree+0x51/0x1e0
[ 265.208814][ T7486] vfs_get_tree+0x92/0x2a0
[ 265.208836][ T7486] do_new_mount+0x341/0xd30
[ 265.208858][ T7486] ? apparmor_capable+0x126/0x170
[ 265.208888][ T7486] ? __pfx_do_new_mount+0x10/0x10
[ 265.208911][ T7486] ? ns_capable+0x89/0xe0
[ 265.208944][ T7486] ? user_path_at+0xd4/0x160
[ 265.208974][ T7486] __se_sys_mount+0x31d/0x420
[ 265.209006][ T7486] ? __pfx___se_sys_mount+0x10/0x10
[ 265.209037][ T7486] ? __x64_sys_mount+0x20/0xc0
[ 265.209063][ T7486] do_syscall_64+0x14d/0xf80
[ 265.209080][ T7486] ? trace_irq_disable+0x3b/0x150
[ 265.209104][ T7486] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 265.209123][ T7486] ? clear_bhb_loop+0x40/0x90
[ 265.209145][ T7486] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 265.209162][ T7486] RIP: 0033:0x7f162ad9b5ca
[ 265.209180][ T7486] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 265.209196][ T7486] RSP: 002b:00007f162bc96e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 265.209216][ T7486] RAX: ffffffffffffffda RBX: 00007f162bc96ee0 RCX: 00007f162ad9b5ca
[ 265.209230][ T7486] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f162bc96ea0
[ 265.209243][ T7486] RBP: 000020000001f680 R08: 00007f162bc96ee0 R09: 0000000000000084
[ 265.209256][ T7486] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 265.209269][ T7486] R13: 00007f162bc96ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 265.209298][ T7486]
[ 265.588841][ T7486] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
2026/02/13 13:26:28 executed programs: 244
[ 265.706181][ T7486] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 265.716917][ T7496] loop5: detected capacity change from 0 to 32768
[ 265.772334][ T7496] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 265.825150][ T7496] CPU: 1 UID: 0 PID: 7496 Comm: syz.5.250 Not tainted syzkaller #0 PREEMPT(full)
[ 265.825175][ T7496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 265.825187][ T7496] Call Trace:
[ 265.825195][ T7496]
[ 265.825203][ T7496] dump_stack_lvl+0xe8/0x150
[ 265.825234][ T7496] sysfs_create_dir_ns+0x271/0x2a0
[ 265.825263][ T7496] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 265.825297][ T7496] ? do_raw_spin_unlock+0xf5/0x210
[ 265.825321][ T7496] kobject_add_internal+0x62b/0xd00
[ 265.825351][ T7496] kobject_init_and_add+0x12b/0x1a0
[ 265.825377][ T7496] ? __pfx_kobject_init_and_add+0x10/0x10
[ 265.825399][ T7496] ? __raw_spin_lock_init+0x45/0x100
[ 265.825420][ T7496] ? __init_swait_queue_head+0xa9/0x150
[ 265.825445][ T7496] gfs2_sys_fs_add+0x257/0x480
[ 265.825465][ T7496] ? is_dynamic_key+0x1ac/0x1c0
[ 265.825489][ T7496] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 265.825518][ T7496] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 265.825551][ T7496] gfs2_fill_super+0x13a7/0x21d0
[ 265.825592][ T7496] ? __pfx_gfs2_fill_super+0x10/0x10
[ 265.825621][ T7496] ? sb_set_blocksize+0x155/0x240
[ 265.825649][ T7496] ? setup_bdev_super+0x4c1/0x5b0
[ 265.825673][ T7496] get_tree_bdev_flags+0x431/0x4f0
[ 265.825694][ T7496] ? __pfx_gfs2_fill_super+0x10/0x10
[ 265.825718][ T7496] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 265.825737][ T7496] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 265.825775][ T7496] gfs2_get_tree+0x51/0x1e0
[ 265.825803][ T7496] vfs_get_tree+0x92/0x2a0
[ 265.825825][ T7496] do_new_mount+0x341/0xd30
[ 265.825848][ T7496] ? apparmor_capable+0x126/0x170
[ 265.825878][ T7496] ? __pfx_do_new_mount+0x10/0x10
[ 265.825904][ T7496] ? ns_capable+0x89/0xe0
[ 265.825938][ T7496] ? user_path_at+0xd4/0x160
[ 265.825968][ T7496] __se_sys_mount+0x31d/0x420
[ 265.825998][ T7496] ? __pfx___se_sys_mount+0x10/0x10
[ 265.826028][ T7496] ? __x64_sys_mount+0x20/0xc0
[ 265.826054][ T7496] do_syscall_64+0x14d/0xf80
[ 265.826071][ T7496] ? trace_irq_disable+0x3b/0x150
[ 265.826096][ T7496] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 265.826114][ T7496] ? clear_bhb_loop+0x40/0x90
[ 265.826137][ T7496] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 265.826167][ T7496] RIP: 0033:0x7f656819b5ca
[ 265.826185][ T7496] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 265.826202][ T7496] RSP: 002b:00007f6569010e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 265.826223][ T7496] RAX: ffffffffffffffda RBX: 00007f6569010ee0 RCX: 00007f656819b5ca
[ 265.826238][ T7496] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6569010ea0
[ 265.826252][ T7496] RBP: 000020000001f680 R08: 00007f6569010ee0 R09: 0000000000000084
[ 265.826265][ T7496] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 265.826284][ T7496] R13: 00007f6569010ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 265.826314][ T7496]
[ 265.826339][ T7496] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 266.209234][ T7496] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 267.490391][ T7504] loop3: detected capacity change from 0 to 32768
[ 267.527231][ T7504] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 267.536046][ T7502] loop2: detected capacity change from 0 to 32768
[ 267.557060][ T7504] CPU: 1 UID: 0 PID: 7504 Comm: syz.3.252 Not tainted syzkaller #0 PREEMPT(full)
[ 267.557088][ T7504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 267.557101][ T7504] Call Trace:
[ 267.557118][ T7504]
[ 267.557127][ T7504] dump_stack_lvl+0xe8/0x150
[ 267.557161][ T7504] sysfs_create_dir_ns+0x271/0x2a0
[ 267.557190][ T7504] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 267.557216][ T7504] ? do_raw_spin_unlock+0xf5/0x210
[ 267.557240][ T7504] kobject_add_internal+0x62b/0xd00
[ 267.557271][ T7504] kobject_init_and_add+0x12b/0x1a0
[ 267.557297][ T7504] ? __pfx_kobject_init_and_add+0x10/0x10
[ 267.557320][ T7504] ? __raw_spin_lock_init+0x45/0x100
[ 267.557342][ T7504] ? __init_swait_queue_head+0xa9/0x150
[ 267.557366][ T7504] gfs2_sys_fs_add+0x257/0x480
[ 267.557386][ T7504] ? is_dynamic_key+0x1ac/0x1c0
[ 267.557410][ T7504] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 267.557441][ T7504] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 267.557474][ T7504] gfs2_fill_super+0x13a7/0x21d0
[ 267.557514][ T7504] ? __pfx_gfs2_fill_super+0x10/0x10
[ 267.557544][ T7504] ? sb_set_blocksize+0x155/0x240
[ 267.557571][ T7504] ? setup_bdev_super+0x4c1/0x5b0
[ 267.557594][ T7504] get_tree_bdev_flags+0x431/0x4f0
[ 267.557616][ T7504] ? __pfx_gfs2_fill_super+0x10/0x10
[ 267.557641][ T7504] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 267.557658][ T7504] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 267.557697][ T7504] gfs2_get_tree+0x51/0x1e0
[ 267.557725][ T7504] vfs_get_tree+0x92/0x2a0
[ 267.557747][ T7504] do_new_mount+0x341/0xd30
[ 267.557771][ T7504] ? apparmor_capable+0x126/0x170
[ 267.557801][ T7504] ? __pfx_do_new_mount+0x10/0x10
[ 267.557825][ T7504] ? ns_capable+0x89/0xe0
[ 267.557858][ T7504] ? user_path_at+0xd4/0x160
[ 267.557888][ T7504] __se_sys_mount+0x31d/0x420
[ 267.557919][ T7504] ? __pfx___se_sys_mount+0x10/0x10
[ 267.557949][ T7504] ? __x64_sys_mount+0x20/0xc0
[ 267.557975][ T7504] do_syscall_64+0x14d/0xf80
[ 267.557992][ T7504] ? trace_irq_disable+0x3b/0x150
[ 267.558017][ T7504] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 267.558043][ T7504] ? clear_bhb_loop+0x40/0x90
[ 267.558066][ T7504] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 267.558085][ T7504] RIP: 0033:0x7f162ad9b5ca
[ 267.558104][ T7504] 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
[ 267.558127][ T7504] RSP: 002b:00007f162bc96e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 267.558148][ T7504] RAX: ffffffffffffffda RBX: 00007f162bc96ee0 RCX: 00007f162ad9b5ca
[ 267.558163][ T7504] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f162bc96ea0
[ 267.558177][ T7504] RBP: 000020000001f680 R08: 00007f162bc96ee0 R09: 0000000000000084
[ 267.558190][ T7504] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 267.558203][ T7504] R13: 00007f162bc96ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 267.558233][ T7504]
[ 267.558264][ T7504] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 267.663334][ T7506] loop4: detected capacity change from 0 to 32768
[ 267.694613][ T7504] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 267.756650][ T7508] loop0: detected capacity change from 0 to 32768
[ 267.804125][ T7502] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 267.804149][ T7502] CPU: 1 UID: 0 PID: 7502 Comm: syz.2.251 Not tainted syzkaller #0 PREEMPT(full)
[ 267.804172][ T7502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 267.804184][ T7502] Call Trace:
[ 267.804192][ T7502]
[ 267.804200][ T7502] dump_stack_lvl+0xe8/0x150
[ 267.804232][ T7502] sysfs_create_dir_ns+0x271/0x2a0
[ 267.804260][ T7502] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 267.804288][ T7502] ? do_raw_spin_unlock+0xf5/0x210
[ 267.804312][ T7502] kobject_add_internal+0x62b/0xd00
[ 267.804341][ T7502] kobject_init_and_add+0x12b/0x1a0
[ 267.804365][ T7502] ? __pfx_kobject_init_and_add+0x10/0x10
[ 267.804385][ T7502] ? __raw_spin_lock_init+0x45/0x100
[ 267.804403][ T7502] ? __init_swait_queue_head+0xa9/0x150
[ 267.804425][ T7502] gfs2_sys_fs_add+0x257/0x480
[ 267.804445][ T7502] ? is_dynamic_key+0x1ac/0x1c0
[ 267.804468][ T7502] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 267.804496][ T7502] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 267.804527][ T7502] gfs2_fill_super+0x13a7/0x21d0
[ 267.804566][ T7502] ? __pfx_gfs2_fill_super+0x10/0x10
[ 267.804594][ T7502] ? sb_set_blocksize+0x155/0x240
[ 267.804622][ T7502] ? setup_bdev_super+0x4c1/0x5b0
[ 267.804645][ T7502] get_tree_bdev_flags+0x431/0x4f0
[ 267.804665][ T7502] ? __pfx_gfs2_fill_super+0x10/0x10
[ 267.804689][ T7502] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 267.804706][ T7502] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 267.804742][ T7502] gfs2_get_tree+0x51/0x1e0
[ 267.804770][ T7502] vfs_get_tree+0x92/0x2a0
[ 267.804791][ T7502] do_new_mount+0x341/0xd30
[ 267.804812][ T7502] ? apparmor_capable+0x126/0x170
[ 267.804841][ T7502] ? __pfx_do_new_mount+0x10/0x10
[ 267.804864][ T7502] ? ns_capable+0x89/0xe0
[ 267.804896][ T7502] ? user_path_at+0xd4/0x160
[ 267.804924][ T7502] __se_sys_mount+0x31d/0x420
[ 267.804953][ T7502] ? __pfx___se_sys_mount+0x10/0x10
[ 267.804983][ T7502] ? __x64_sys_mount+0x20/0xc0
[ 267.805009][ T7502] do_syscall_64+0x14d/0xf80
[ 267.805025][ T7502] ? trace_irq_disable+0x3b/0x150
[ 267.805050][ T7502] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 267.805069][ T7502] ? clear_bhb_loop+0x40/0x90
[ 267.805101][ T7502] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 267.805119][ T7502] RIP: 0033:0x7f9dd639b5ca
[ 267.805137][ T7502] 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
[ 267.805154][ T7502] RSP: 002b:00007f9dd72dde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 267.805174][ T7502] RAX: ffffffffffffffda RBX: 00007f9dd72ddee0 RCX: 00007f9dd639b5ca
[ 267.805189][ T7502] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f9dd72ddea0
[ 267.805202][ T7502] RBP: 000020000001f680 R08: 00007f9dd72ddee0 R09: 0000000000000084
[ 267.805214][ T7502] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 267.805226][ T7502] R13: 00007f9dd72ddea0 R14: 000000000001f790 R15: 00002000000001c0
[ 267.805256][ T7502]
[ 267.805278][ T7502] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 267.959021][ T7506] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 267.963157][ T7502] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 268.099714][ T7508] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 268.103636][ T7510] loop5: detected capacity change from 0 to 32768
[ 268.105718][ T7508] CPU: 0 UID: 0 PID: 7508 Comm: syz.0.255 Not tainted syzkaller #0 PREEMPT(full)
[ 268.105742][ T7508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 268.105753][ T7508] Call Trace:
[ 268.105761][ T7508]
[ 268.105770][ T7508] dump_stack_lvl+0xe8/0x150
[ 268.105808][ T7508] sysfs_create_dir_ns+0x271/0x2a0
[ 268.105836][ T7508] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 268.105861][ T7508] ? do_raw_spin_unlock+0xf5/0x210
[ 268.105885][ T7508] kobject_add_internal+0x62b/0xd00
[ 268.105913][ T7508] kobject_init_and_add+0x12b/0x1a0
[ 268.105938][ T7508] ? __pfx_kobject_init_and_add+0x10/0x10
[ 268.105959][ T7508] ? __raw_spin_lock_init+0x45/0x100
[ 268.105989][ T7508] ? __init_swait_queue_head+0xa9/0x150
[ 268.106011][ T7508] gfs2_sys_fs_add+0x257/0x480
[ 268.106031][ T7508] ? is_dynamic_key+0x1ac/0x1c0
[ 268.106054][ T7508] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 268.106081][ T7508] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 268.106112][ T7508] gfs2_fill_super+0x13a7/0x21d0
[ 268.106151][ T7508] ? __pfx_gfs2_fill_super+0x10/0x10
[ 268.106179][ T7508] ? sb_set_blocksize+0x155/0x240
[ 268.106206][ T7508] ? setup_bdev_super+0x4c1/0x5b0
[ 268.106229][ T7508] get_tree_bdev_flags+0x431/0x4f0
[ 268.106249][ T7508] ? __pfx_gfs2_fill_super+0x10/0x10
[ 268.106272][ T7508] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 268.106290][ T7508] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 268.106327][ T7508] gfs2_get_tree+0x51/0x1e0
[ 268.106354][ T7508] vfs_get_tree+0x92/0x2a0
[ 268.106374][ T7508] do_new_mount+0x341/0xd30
[ 268.106396][ T7508] ? apparmor_capable+0x126/0x170
[ 268.106425][ T7508] ? __pfx_do_new_mount+0x10/0x10
[ 268.106449][ T7508] ? ns_capable+0x89/0xe0
[ 268.106480][ T7508] ? user_path_at+0xd4/0x160
[ 268.106509][ T7508] __se_sys_mount+0x31d/0x420
[ 268.106539][ T7508] ? __pfx___se_sys_mount+0x10/0x10
[ 268.106569][ T7508] ? __x64_sys_mount+0x20/0xc0
[ 268.106594][ T7508] do_syscall_64+0x14d/0xf80
[ 268.106611][ T7508] ? trace_irq_disable+0x3b/0x150
[ 268.106636][ T7508] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 268.106655][ T7508] ? clear_bhb_loop+0x40/0x90
[ 268.106676][ T7508] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 268.106694][ T7508] RIP: 0033:0x7f372f99b5ca
[ 268.106712][ T7508] 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
[ 268.106728][ T7508] RSP: 002b:00007f37308dae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 268.106749][ T7508] RAX: ffffffffffffffda RBX: 00007f37308daee0 RCX: 00007f372f99b5ca
[ 268.106763][ T7508] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f37308daea0
[ 268.106776][ T7508] RBP: 000020000001f680 R08: 00007f37308daee0 R09: 0000000000000084
[ 268.106789][ T7508] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 268.106807][ T7508] R13: 00007f37308daea0 R14: 000000000001f790 R15: 00002000000001c0
[ 268.106839][ T7508]
[ 268.106863][ T7508] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 268.128836][ T7506] CPU: 1 UID: 0 PID: 7506 Comm: syz.4.253 Not tainted syzkaller #0 PREEMPT(full)
[ 268.128862][ T7506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 268.128874][ T7506] Call Trace:
[ 268.128883][ T7506]
[ 268.128891][ T7506] dump_stack_lvl+0xe8/0x150
[ 268.128920][ T7506] sysfs_create_dir_ns+0x271/0x2a0
[ 268.128948][ T7506] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 268.128974][ T7506] ? do_raw_spin_unlock+0xf5/0x210
[ 268.128998][ T7506] kobject_add_internal+0x62b/0xd00
[ 268.129026][ T7506] kobject_init_and_add+0x12b/0x1a0
[ 268.129059][ T7506] ? __pfx_kobject_init_and_add+0x10/0x10
[ 268.129080][ T7506] ? __raw_spin_lock_init+0x45/0x100
[ 268.129100][ T7506] ? __init_swait_queue_head+0xa9/0x150
[ 268.129123][ T7506] gfs2_sys_fs_add+0x257/0x480
[ 268.129143][ T7506] ? is_dynamic_key+0x1ac/0x1c0
[ 268.129166][ T7506] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 268.129193][ T7506] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 268.129224][ T7506] gfs2_fill_super+0x13a7/0x21d0
[ 268.129262][ T7506] ? __pfx_gfs2_fill_super+0x10/0x10
[ 268.129291][ T7506] ? sb_set_blocksize+0x155/0x240
[ 268.129318][ T7506] ? setup_bdev_super+0x4c1/0x5b0
[ 268.129340][ T7506] get_tree_bdev_flags+0x431/0x4f0
[ 268.129361][ T7506] ? __pfx_gfs2_fill_super+0x10/0x10
[ 268.129385][ T7506] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 268.129403][ T7506] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 268.129439][ T7506] gfs2_get_tree+0x51/0x1e0
[ 268.129466][ T7506] vfs_get_tree+0x92/0x2a0
[ 268.129487][ T7506] do_new_mount+0x341/0xd30
[ 268.129510][ T7506] ? apparmor_capable+0x126/0x170
[ 268.129539][ T7506] ? __pfx_do_new_mount+0x10/0x10
[ 268.129563][ T7506] ? ns_capable+0x89/0xe0
[ 268.129595][ T7506] ? user_path_at+0xd4/0x160
[ 268.129623][ T7506] __se_sys_mount+0x31d/0x420
[ 268.129652][ T7506] ? __pfx___se_sys_mount+0x10/0x10
[ 268.129682][ T7506] ? __x64_sys_mount+0x20/0xc0
[ 268.129709][ T7506] do_syscall_64+0x14d/0xf80
[ 268.129725][ T7506] ? trace_irq_disable+0x3b/0x150
[ 268.129749][ T7506] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 268.129768][ T7506] ? clear_bhb_loop+0x40/0x90
[ 268.129790][ T7506] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 268.129808][ T7506] RIP: 0033:0x7fc53b39b5ca
[ 268.129826][ T7506] 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
[ 268.129843][ T7506] RSP: 002b:00007fc53c176e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 268.129862][ T7506] RAX: ffffffffffffffda RBX: 00007fc53c176ee0 RCX: 00007fc53b39b5ca
[ 268.129876][ T7506] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fc53c176ea0
[ 268.129890][ T7506] RBP: 000020000001f680 R08: 00007fc53c176ee0 R09: 0000000000000084
[ 268.129903][ T7506] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 268.129915][ T7506] R13: 00007fc53c176ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 268.129944][ T7506]
[ 268.129970][ T7506] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 268.149403][ T7508] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 268.228734][ T7506] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 268.588002][ T7510] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 268.915830][ T7510] CPU: 0 UID: 0 PID: 7510 Comm: syz.5.254 Not tainted syzkaller #0 PREEMPT(full)
[ 268.915858][ T7510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 268.915870][ T7510] Call Trace:
[ 268.915879][ T7510]
[ 268.915888][ T7510] dump_stack_lvl+0xe8/0x150
[ 268.915929][ T7510] sysfs_create_dir_ns+0x271/0x2a0
[ 268.915958][ T7510] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 268.915984][ T7510] ? do_raw_spin_unlock+0xf5/0x210
[ 268.916009][ T7510] kobject_add_internal+0x62b/0xd00
[ 268.916038][ T7510] kobject_init_and_add+0x12b/0x1a0
[ 268.916064][ T7510] ? __pfx_kobject_init_and_add+0x10/0x10
[ 268.916086][ T7510] ? __raw_spin_lock_init+0x45/0x100
[ 268.916108][ T7510] ? __init_swait_queue_head+0xa9/0x150
[ 268.916131][ T7510] gfs2_sys_fs_add+0x257/0x480
[ 268.916151][ T7510] ? is_dynamic_key+0x1ac/0x1c0
[ 268.916174][ T7510] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 268.916202][ T7510] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 268.916234][ T7510] gfs2_fill_super+0x13a7/0x21d0
[ 268.916276][ T7510] ? __pfx_gfs2_fill_super+0x10/0x10
[ 268.916302][ T7510] ? sb_set_blocksize+0x155/0x240
[ 268.916327][ T7510] ? setup_bdev_super+0x4c1/0x5b0
[ 268.916351][ T7510] get_tree_bdev_flags+0x431/0x4f0
[ 268.916372][ T7510] ? __pfx_gfs2_fill_super+0x10/0x10
[ 268.916396][ T7510] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 268.916414][ T7510] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 268.916458][ T7510] gfs2_get_tree+0x51/0x1e0
[ 268.916486][ T7510] vfs_get_tree+0x92/0x2a0
[ 268.916508][ T7510] do_new_mount+0x341/0xd30
[ 268.916531][ T7510] ? apparmor_capable+0x126/0x170
[ 268.916560][ T7510] ? __pfx_do_new_mount+0x10/0x10
[ 268.916585][ T7510] ? ns_capable+0x89/0xe0
[ 268.916617][ T7510] ? user_path_at+0xd4/0x160
[ 268.916646][ T7510] __se_sys_mount+0x31d/0x420
[ 268.916676][ T7510] ? __pfx___se_sys_mount+0x10/0x10
[ 268.916707][ T7510] ? __x64_sys_mount+0x20/0xc0
[ 268.916734][ T7510] do_syscall_64+0x14d/0xf80
[ 268.916751][ T7510] ? trace_irq_disable+0x3b/0x150
[ 268.916776][ T7510] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 268.916796][ T7510] ? clear_bhb_loop+0x40/0x90
[ 268.916820][ T7510] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 268.916838][ T7510] RIP: 0033:0x7f656819b5ca
[ 268.916857][ T7510] 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
[ 268.916874][ T7510] RSP: 002b:00007f6569010e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 268.916901][ T7510] RAX: ffffffffffffffda RBX: 00007f6569010ee0 RCX: 00007f656819b5ca
[ 268.916915][ T7510] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6569010ea0
[ 268.916929][ T7510] RBP: 000020000001f680 R08: 00007f6569010ee0 R09: 0000000000000084
[ 268.916943][ T7510] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 268.916955][ T7510] R13: 00007f6569010ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 268.916986][ T7510]
[ 268.917010][ T7510] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 269.238790][ T7510] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 270.055017][ T7522] loop0: detected capacity change from 0 to 32768
[ 270.133640][ T7522] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 270.174554][ T7522] CPU: 1 UID: 0 PID: 7522 Comm: syz.0.256 Not tainted syzkaller #0 PREEMPT(full)
[ 270.174581][ T7522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 270.174593][ T7522] Call Trace:
[ 270.174602][ T7522]
[ 270.174610][ T7522] dump_stack_lvl+0xe8/0x150
[ 270.174641][ T7522] sysfs_create_dir_ns+0x271/0x2a0
[ 270.174670][ T7522] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 270.174696][ T7522] ? do_raw_spin_unlock+0xf5/0x210
[ 270.174721][ T7522] kobject_add_internal+0x62b/0xd00
[ 270.174760][ T7522] kobject_init_and_add+0x12b/0x1a0
[ 270.174786][ T7522] ? __pfx_kobject_init_and_add+0x10/0x10
[ 270.174808][ T7522] ? __raw_spin_lock_init+0x45/0x100
[ 270.174829][ T7522] ? __init_swait_queue_head+0xa9/0x150
[ 270.174853][ T7522] gfs2_sys_fs_add+0x257/0x480
[ 270.174873][ T7522] ? is_dynamic_key+0x1ac/0x1c0
[ 270.174901][ T7522] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 270.174930][ T7522] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 270.174964][ T7522] gfs2_fill_super+0x13a7/0x21d0
[ 270.175005][ T7522] ? __pfx_gfs2_fill_super+0x10/0x10
[ 270.175034][ T7522] ? sb_set_blocksize+0x155/0x240
[ 270.175063][ T7522] ? setup_bdev_super+0x4c1/0x5b0
[ 270.175086][ T7522] get_tree_bdev_flags+0x431/0x4f0
[ 270.175107][ T7522] ? __pfx_gfs2_fill_super+0x10/0x10
[ 270.175131][ T7522] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 270.175150][ T7522] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 270.175187][ T7522] gfs2_get_tree+0x51/0x1e0
[ 270.175215][ T7522] vfs_get_tree+0x92/0x2a0
[ 270.175237][ T7522] do_new_mount+0x341/0xd30
[ 270.175260][ T7522] ? apparmor_capable+0x126/0x170
[ 270.175291][ T7522] ? __pfx_do_new_mount+0x10/0x10
[ 270.175315][ T7522] ? ns_capable+0x89/0xe0
[ 270.175350][ T7522] ? user_path_at+0xd4/0x160
[ 270.175378][ T7522] __se_sys_mount+0x31d/0x420
[ 270.175410][ T7522] ? __pfx___se_sys_mount+0x10/0x10
[ 270.175442][ T7522] ? __x64_sys_mount+0x20/0xc0
[ 270.175469][ T7522] do_syscall_64+0x14d/0xf80
[ 270.175486][ T7522] ? trace_irq_disable+0x3b/0x150
[ 270.175510][ T7522] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 270.175529][ T7522] ? clear_bhb_loop+0x40/0x90
[ 270.175553][ T7522] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 270.175571][ T7522] RIP: 0033:0x7f372f99b5ca
[ 270.175590][ T7522] 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
[ 270.175607][ T7522] RSP: 002b:00007f37308dae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 270.175628][ T7522] RAX: ffffffffffffffda RBX: 00007f37308daee0 RCX: 00007f372f99b5ca
[ 270.175642][ T7522] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f37308daea0
[ 270.175656][ T7522] RBP: 000020000001f680 R08: 00007f37308daee0 R09: 0000000000000084
[ 270.175669][ T7522] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 270.175681][ T7522] R13: 00007f37308daea0 R14: 000000000001f790 R15: 00002000000001c0
[ 270.175712][ T7522]
[ 270.175769][ T7522] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 270.371931][ T7524] loop2: detected capacity change from 0 to 32768
[ 270.379608][ T7522] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 270.556991][ T7524] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 270.604518][ T7524] CPU: 0 UID: 0 PID: 7524 Comm: syz.2.257 Not tainted syzkaller #0 PREEMPT(full)
[ 270.604546][ T7524] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 270.604559][ T7524] Call Trace:
[ 270.604567][ T7524]
[ 270.604576][ T7524] dump_stack_lvl+0xe8/0x150
[ 270.604608][ T7524] sysfs_create_dir_ns+0x271/0x2a0
[ 270.604637][ T7524] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 270.604663][ T7524] ? do_raw_spin_unlock+0xf5/0x210
[ 270.604688][ T7524] kobject_add_internal+0x62b/0xd00
[ 270.604717][ T7524] kobject_init_and_add+0x12b/0x1a0
[ 270.604742][ T7524] ? __pfx_kobject_init_and_add+0x10/0x10
[ 270.604765][ T7524] ? __raw_spin_lock_init+0x45/0x100
[ 270.604796][ T7524] ? __init_swait_queue_head+0xa9/0x150
[ 270.604819][ T7524] gfs2_sys_fs_add+0x257/0x480
[ 270.604839][ T7524] ? is_dynamic_key+0x1ac/0x1c0
[ 270.604862][ T7524] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 270.604892][ T7524] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 270.604924][ T7524] gfs2_fill_super+0x13a7/0x21d0
[ 270.604963][ T7524] ? __pfx_gfs2_fill_super+0x10/0x10
[ 270.604993][ T7524] ? sb_set_blocksize+0x155/0x240
[ 270.605020][ T7524] ? setup_bdev_super+0x4c1/0x5b0
[ 270.605044][ T7524] get_tree_bdev_flags+0x431/0x4f0
[ 270.605065][ T7524] ? __pfx_gfs2_fill_super+0x10/0x10
[ 270.605089][ T7524] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 270.605107][ T7524] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 270.605145][ T7524] gfs2_get_tree+0x51/0x1e0
[ 270.605173][ T7524] vfs_get_tree+0x92/0x2a0
[ 270.605196][ T7524] do_new_mount+0x341/0xd30
[ 270.605219][ T7524] ? apparmor_capable+0x126/0x170
[ 270.605249][ T7524] ? __pfx_do_new_mount+0x10/0x10
[ 270.605274][ T7524] ? ns_capable+0x89/0xe0
[ 270.605307][ T7524] ? user_path_at+0xd4/0x160
[ 270.605336][ T7524] __se_sys_mount+0x31d/0x420
[ 270.605367][ T7524] ? __pfx___se_sys_mount+0x10/0x10
[ 270.605402][ T7524] ? __x64_sys_mount+0x20/0xc0
[ 270.605429][ T7524] do_syscall_64+0x14d/0xf80
[ 270.605446][ T7524] ? trace_irq_disable+0x3b/0x150
[ 270.605472][ T7524] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 270.605492][ T7524] ? clear_bhb_loop+0x40/0x90
[ 270.605515][ T7524] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 270.605533][ T7524] RIP: 0033:0x7f9dd639b5ca
[ 270.605552][ T7524] 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
[ 270.605568][ T7524] RSP: 002b:00007f9dd72dde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 270.605589][ T7524] RAX: ffffffffffffffda RBX: 00007f9dd72ddee0 RCX: 00007f9dd639b5ca
[ 270.605603][ T7524] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f9dd72ddea0
[ 270.605617][ T7524] RBP: 000020000001f680 R08: 00007f9dd72ddee0 R09: 0000000000000084
[ 270.605630][ T7524] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 270.605642][ T7524] R13: 00007f9dd72ddea0 R14: 000000000001f790 R15: 00002000000001c0
[ 270.605673][ T7524]
[ 270.605699][ T7524] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 270.930482][ T7524] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 270.941764][ T7526] loop3: detected capacity change from 0 to 32768
[ 270.989568][ T7526] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 271.018876][ T7528] loop4: detected capacity change from 0 to 32768
[ 271.066318][ T7526] CPU: 1 UID: 0 PID: 7526 Comm: syz.3.258 Not tainted syzkaller #0 PREEMPT(full)
[ 271.066344][ T7526] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 271.066358][ T7526] Call Trace:
[ 271.066366][ T7526]
[ 271.066375][ T7526] dump_stack_lvl+0xe8/0x150
[ 271.066407][ T7526] sysfs_create_dir_ns+0x271/0x2a0
[ 271.066434][ T7526] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 271.066461][ T7526] ? do_raw_spin_unlock+0xf5/0x210
[ 271.066492][ T7526] kobject_add_internal+0x62b/0xd00
[ 271.066522][ T7526] kobject_init_and_add+0x12b/0x1a0
[ 271.066548][ T7526] ? __pfx_kobject_init_and_add+0x10/0x10
[ 271.066570][ T7526] ? __raw_spin_lock_init+0x45/0x100
[ 271.066591][ T7526] ? __init_swait_queue_head+0xa9/0x150
[ 271.066614][ T7526] gfs2_sys_fs_add+0x257/0x480
[ 271.066634][ T7526] ? is_dynamic_key+0x1ac/0x1c0
[ 271.066658][ T7526] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 271.066687][ T7526] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 271.066720][ T7526] gfs2_fill_super+0x13a7/0x21d0
[ 271.066761][ T7526] ? __pfx_gfs2_fill_super+0x10/0x10
[ 271.066790][ T7526] ? sb_set_blocksize+0x155/0x240
[ 271.066818][ T7526] ? setup_bdev_super+0x4c1/0x5b0
[ 271.066842][ T7526] get_tree_bdev_flags+0x431/0x4f0
[ 271.066863][ T7526] ? __pfx_gfs2_fill_super+0x10/0x10
[ 271.066888][ T7526] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 271.066905][ T7526] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 271.066944][ T7526] gfs2_get_tree+0x51/0x1e0
[ 271.066970][ T7526] vfs_get_tree+0x92/0x2a0
[ 271.066993][ T7526] do_new_mount+0x341/0xd30
[ 271.067016][ T7526] ? apparmor_capable+0x126/0x170
[ 271.067045][ T7526] ? __pfx_do_new_mount+0x10/0x10
[ 271.067070][ T7526] ? ns_capable+0x89/0xe0
[ 271.067104][ T7526] ? user_path_at+0xd4/0x160
[ 271.067134][ T7526] __se_sys_mount+0x31d/0x420
[ 271.067165][ T7526] ? __pfx___se_sys_mount+0x10/0x10
[ 271.067196][ T7526] ? __x64_sys_mount+0x20/0xc0
[ 271.067223][ T7526] do_syscall_64+0x14d/0xf80
[ 271.067240][ T7526] ? trace_irq_disable+0x3b/0x150
[ 271.067264][ T7526] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 271.067284][ T7526] ? clear_bhb_loop+0x40/0x90
[ 271.067307][ T7526] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 271.067326][ T7526] RIP: 0033:0x7f162ad9b5ca
[ 271.067345][ T7526] 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
[ 271.067362][ T7526] RSP: 002b:00007f162bc96e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 271.067383][ T7526] RAX: ffffffffffffffda RBX: 00007f162bc96ee0 RCX: 00007f162ad9b5ca
[ 271.067398][ T7526] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f162bc96ea0
[ 271.067411][ T7526] RBP: 000020000001f680 R08: 00007f162bc96ee0 R09: 0000000000000084
[ 271.067425][ T7526] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 271.067438][ T7526] R13: 00007f162bc96ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 271.067475][ T7526]
[ 271.067500][ T7526] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 271.115561][ T7530] loop5: detected capacity change from 0 to 32768
[ 271.406615][ T7526] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/02/13 13:26:34 executed programs: 255
[ 271.430806][ T7528] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 271.445305][ T7530] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 271.467613][ T7528] CPU: 0 UID: 0 PID: 7528 Comm: syz.4.259 Not tainted syzkaller #0 PREEMPT(full)
[ 271.467639][ T7528] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 271.467649][ T7528] Call Trace:
[ 271.467657][ T7528]
[ 271.467664][ T7528] dump_stack_lvl+0xe8/0x150
[ 271.467694][ T7528] sysfs_create_dir_ns+0x271/0x2a0
[ 271.467720][ T7528] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 271.467746][ T7528] ? do_raw_spin_unlock+0xf5/0x210
[ 271.467770][ T7528] kobject_add_internal+0x62b/0xd00
[ 271.467800][ T7528] kobject_init_and_add+0x12b/0x1a0
[ 271.467825][ T7528] ? __pfx_kobject_init_and_add+0x10/0x10
[ 271.467847][ T7528] ? __raw_spin_lock_init+0x45/0x100
[ 271.467868][ T7528] ? __init_swait_queue_head+0xa9/0x150
[ 271.467892][ T7528] gfs2_sys_fs_add+0x257/0x480
[ 271.467912][ T7528] ? is_dynamic_key+0x1ac/0x1c0
[ 271.467936][ T7528] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 271.467964][ T7528] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 271.467995][ T7528] gfs2_fill_super+0x13a7/0x21d0
[ 271.468035][ T7528] ? __pfx_gfs2_fill_super+0x10/0x10
[ 271.468062][ T7528] ? sb_set_blocksize+0x155/0x240
[ 271.468089][ T7528] ? setup_bdev_super+0x4c1/0x5b0
[ 271.468112][ T7528] get_tree_bdev_flags+0x431/0x4f0
[ 271.468133][ T7528] ? __pfx_gfs2_fill_super+0x10/0x10
[ 271.468157][ T7528] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 271.468175][ T7528] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 271.468212][ T7528] gfs2_get_tree+0x51/0x1e0
[ 271.468259][ T7528] vfs_get_tree+0x92/0x2a0
[ 271.468281][ T7528] do_new_mount+0x341/0xd30
[ 271.468305][ T7528] ? apparmor_capable+0x126/0x170
[ 271.468335][ T7528] ? __pfx_do_new_mount+0x10/0x10
[ 271.468359][ T7528] ? ns_capable+0x89/0xe0
[ 271.468389][ T7528] ? user_path_at+0xd4/0x160
[ 271.468418][ T7528] __se_sys_mount+0x31d/0x420
[ 271.468448][ T7528] ? __pfx___se_sys_mount+0x10/0x10
[ 271.468479][ T7528] ? __x64_sys_mount+0x20/0xc0
[ 271.468506][ T7528] do_syscall_64+0x14d/0xf80
[ 271.468523][ T7528] ? trace_irq_disable+0x3b/0x150
[ 271.468548][ T7528] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 271.468568][ T7528] ? clear_bhb_loop+0x40/0x90
[ 271.468597][ T7528] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 271.468618][ T7528] RIP: 0033:0x7fc53b39b5ca
[ 271.468634][ T7528] 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
[ 271.468649][ T7528] RSP: 002b:00007fc53c176e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 271.468669][ T7528] RAX: ffffffffffffffda RBX: 00007fc53c176ee0 RCX: 00007fc53b39b5ca
[ 271.468683][ T7528] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fc53c176ea0
[ 271.468697][ T7528] RBP: 000020000001f680 R08: 00007fc53c176ee0 R09: 0000000000000084
[ 271.468710][ T7528] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 271.468723][ T7528] R13: 00007fc53c176ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 271.468754][ T7528]
[ 271.759552][ T7530] CPU: 1 UID: 0 PID: 7530 Comm: syz.5.260 Not tainted syzkaller #0 PREEMPT(full)
[ 271.759580][ T7530] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 271.759594][ T7530] Call Trace:
[ 271.759602][ T7530]
[ 271.759610][ T7530] dump_stack_lvl+0xe8/0x150
[ 271.759648][ T7530] sysfs_create_dir_ns+0x271/0x2a0
[ 271.759676][ T7530] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 271.759702][ T7530] ? do_raw_spin_unlock+0xf5/0x210
[ 271.759727][ T7530] kobject_add_internal+0x62b/0xd00
[ 271.759756][ T7530] kobject_init_and_add+0x12b/0x1a0
[ 271.759782][ T7530] ? __pfx_kobject_init_and_add+0x10/0x10
[ 271.759804][ T7530] ? __raw_spin_lock_init+0x45/0x100
[ 271.759831][ T7530] ? __init_swait_queue_head+0xa9/0x150
[ 271.759851][ T7530] gfs2_sys_fs_add+0x257/0x480
[ 271.759868][ T7530] ? is_dynamic_key+0x1ac/0x1c0
[ 271.759890][ T7530] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 271.759918][ T7530] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 271.759952][ T7530] gfs2_fill_super+0x13a7/0x21d0
[ 271.759992][ T7530] ? __pfx_gfs2_fill_super+0x10/0x10
[ 271.760022][ T7530] ? sb_set_blocksize+0x155/0x240
[ 271.760051][ T7530] ? setup_bdev_super+0x4c1/0x5b0
[ 271.760075][ T7530] get_tree_bdev_flags+0x431/0x4f0
[ 271.760096][ T7530] ? __pfx_gfs2_fill_super+0x10/0x10
[ 271.760122][ T7530] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 271.760140][ T7530] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 271.760178][ T7530] gfs2_get_tree+0x51/0x1e0
[ 271.760206][ T7530] vfs_get_tree+0x92/0x2a0
[ 271.760229][ T7530] do_new_mount+0x341/0xd30
[ 271.760253][ T7530] ? apparmor_capable+0x126/0x170
[ 271.760282][ T7530] ? __pfx_do_new_mount+0x10/0x10
[ 271.760307][ T7530] ? ns_capable+0x89/0xe0
[ 271.760341][ T7530] ? user_path_at+0xd4/0x160
[ 271.760371][ T7530] __se_sys_mount+0x31d/0x420
[ 271.760400][ T7530] ? __pfx___se_sys_mount+0x10/0x10
[ 271.760432][ T7530] ? __x64_sys_mount+0x20/0xc0
[ 271.760469][ T7530] do_syscall_64+0x14d/0xf80
[ 271.760487][ T7530] ? trace_irq_disable+0x3b/0x150
[ 271.760513][ T7530] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 271.760533][ T7530] ? clear_bhb_loop+0x40/0x90
[ 271.760556][ T7530] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 271.760575][ T7530] RIP: 0033:0x7f656819b5ca
[ 271.760594][ T7530] 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
[ 271.760612][ T7530] RSP: 002b:00007f6569010e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 271.760640][ T7530] RAX: ffffffffffffffda RBX: 00007f6569010ee0 RCX: 00007f656819b5ca
[ 271.760655][ T7530] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6569010ea0
[ 271.760669][ T7530] RBP: 000020000001f680 R08: 00007f6569010ee0 R09: 0000000000000084
[ 271.760682][ T7530] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 271.760696][ T7530] R13: 00007f6569010ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 271.760727][ T7530]
[ 271.760752][ T7530] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 271.949108][ T7536] loop0: detected capacity change from 0 to 32768
[ 271.971591][ T7528] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 272.008876][ T7530] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 272.028791][ T7528] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 272.109795][ T7536] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 272.117959][ T7536] CPU: 1 UID: 0 PID: 7536 Comm: syz.0.261 Not tainted syzkaller #0 PREEMPT(full)
[ 272.117984][ T7536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 272.117997][ T7536] Call Trace:
[ 272.118005][ T7536]
[ 272.118014][ T7536] dump_stack_lvl+0xe8/0x150
[ 272.118045][ T7536] sysfs_create_dir_ns+0x271/0x2a0
[ 272.118071][ T7536] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 272.118094][ T7536] ? do_raw_spin_unlock+0xf5/0x210
[ 272.118116][ T7536] kobject_add_internal+0x62b/0xd00
[ 272.118144][ T7536] kobject_init_and_add+0x12b/0x1a0
[ 272.118170][ T7536] ? __pfx_kobject_init_and_add+0x10/0x10
[ 272.118191][ T7536] ? __raw_spin_lock_init+0x45/0x100
[ 272.118211][ T7536] ? __init_swait_queue_head+0xa9/0x150
[ 272.118232][ T7536] gfs2_sys_fs_add+0x257/0x480
[ 272.118252][ T7536] ? is_dynamic_key+0x1ac/0x1c0
[ 272.118276][ T7536] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 272.118305][ T7536] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 272.118345][ T7536] gfs2_fill_super+0x13a7/0x21d0
[ 272.118385][ T7536] ? __pfx_gfs2_fill_super+0x10/0x10
[ 272.118415][ T7536] ? sb_set_blocksize+0x155/0x240
[ 272.118443][ T7536] ? setup_bdev_super+0x4c1/0x5b0
[ 272.118466][ T7536] get_tree_bdev_flags+0x431/0x4f0
[ 272.118487][ T7536] ? __pfx_gfs2_fill_super+0x10/0x10
[ 272.118511][ T7536] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 272.118529][ T7536] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 272.118567][ T7536] gfs2_get_tree+0x51/0x1e0
[ 272.118592][ T7536] vfs_get_tree+0x92/0x2a0
[ 272.118616][ T7536] do_new_mount+0x341/0xd30
[ 272.118636][ T7536] ? apparmor_capable+0x126/0x170
[ 272.118662][ T7536] ? __pfx_do_new_mount+0x10/0x10
[ 272.118684][ T7536] ? ns_capable+0x89/0xe0
[ 272.118714][ T7536] ? user_path_at+0xd4/0x160
[ 272.118740][ T7536] __se_sys_mount+0x31d/0x420
[ 272.118769][ T7536] ? __pfx___se_sys_mount+0x10/0x10
[ 272.118801][ T7536] ? __x64_sys_mount+0x20/0xc0
[ 272.118828][ T7536] do_syscall_64+0x14d/0xf80
[ 272.118845][ T7536] ? trace_irq_disable+0x3b/0x150
[ 272.118872][ T7536] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 272.118892][ T7536] ? clear_bhb_loop+0x40/0x90
[ 272.118910][ T7536] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 272.118925][ T7536] RIP: 0033:0x7f372f99b5ca
[ 272.118942][ T7536] 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
[ 272.118958][ T7536] RSP: 002b:00007f37308dae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 272.118977][ T7536] RAX: ffffffffffffffda RBX: 00007f37308daee0 RCX: 00007f372f99b5ca
[ 272.118989][ T7536] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f37308daea0
[ 272.119003][ T7536] RBP: 000020000001f680 R08: 00007f37308daee0 R09: 0000000000000084
[ 272.119017][ T7536] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 272.119029][ T7536] R13: 00007f37308daea0 R14: 000000000001f790 R15: 00002000000001c0
[ 272.119060][ T7536]
[ 272.557799][ T7536] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 272.707697][ T7536] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 273.330312][ T5896] Bluetooth: hci5: command 0x0406 tx timeout
[ 273.412921][ T7544] loop2: detected capacity change from 0 to 32768
[ 273.469331][ T7544] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 273.476757][ T7544] CPU: 1 UID: 0 PID: 7544 Comm: syz.2.262 Not tainted syzkaller #0 PREEMPT(full)
[ 273.476783][ T7544] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 273.476795][ T7544] Call Trace:
[ 273.476804][ T7544]
[ 273.476812][ T7544] dump_stack_lvl+0xe8/0x150
[ 273.476843][ T7544] sysfs_create_dir_ns+0x271/0x2a0
[ 273.476872][ T7544] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 273.476898][ T7544] ? do_raw_spin_unlock+0xf5/0x210
[ 273.476923][ T7544] kobject_add_internal+0x62b/0xd00
[ 273.476954][ T7544] kobject_init_and_add+0x12b/0x1a0
[ 273.476981][ T7544] ? __pfx_kobject_init_and_add+0x10/0x10
[ 273.477003][ T7544] ? __raw_spin_lock_init+0x45/0x100
[ 273.477024][ T7544] ? __init_swait_queue_head+0xa9/0x150
[ 273.477047][ T7544] gfs2_sys_fs_add+0x257/0x480
[ 273.477067][ T7544] ? is_dynamic_key+0x1ac/0x1c0
[ 273.477090][ T7544] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 273.477119][ T7544] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 273.477152][ T7544] gfs2_fill_super+0x13a7/0x21d0
[ 273.477198][ T7544] ? __pfx_gfs2_fill_super+0x10/0x10
[ 273.477228][ T7544] ? sb_set_blocksize+0x155/0x240
[ 273.477256][ T7544] ? setup_bdev_super+0x4c1/0x5b0
[ 273.477279][ T7544] get_tree_bdev_flags+0x431/0x4f0
[ 273.477300][ T7544] ? __pfx_gfs2_fill_super+0x10/0x10
[ 273.477325][ T7544] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 273.477342][ T7544] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 273.477380][ T7544] gfs2_get_tree+0x51/0x1e0
[ 273.477409][ T7544] vfs_get_tree+0x92/0x2a0
[ 273.477430][ T7544] do_new_mount+0x341/0xd30
[ 273.477453][ T7544] ? apparmor_capable+0x126/0x170
[ 273.477482][ T7544] ? __pfx_do_new_mount+0x10/0x10
[ 273.477506][ T7544] ? ns_capable+0x89/0xe0
[ 273.477539][ T7544] ? user_path_at+0xd4/0x160
[ 273.477568][ T7544] __se_sys_mount+0x31d/0x420
[ 273.477599][ T7544] ? __pfx___se_sys_mount+0x10/0x10
[ 273.477630][ T7544] ? __x64_sys_mount+0x20/0xc0
[ 273.477657][ T7544] do_syscall_64+0x14d/0xf80
[ 273.477674][ T7544] ? trace_irq_disable+0x3b/0x150
[ 273.477699][ T7544] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 273.477718][ T7544] ? clear_bhb_loop+0x40/0x90
[ 273.477741][ T7544] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 273.477759][ T7544] RIP: 0033:0x7f9dd639b5ca
[ 273.477778][ T7544] 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
[ 273.477794][ T7544] RSP: 002b:00007f9dd72dde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 273.477815][ T7544] RAX: ffffffffffffffda RBX: 00007f9dd72ddee0 RCX: 00007f9dd639b5ca
[ 273.477830][ T7544] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f9dd72ddea0
[ 273.477844][ T7544] RBP: 000020000001f680 R08: 00007f9dd72ddee0 R09: 0000000000000084
[ 273.477857][ T7544] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 273.477869][ T7544] R13: 00007f9dd72ddea0 R14: 000000000001f790 R15: 00002000000001c0
[ 273.477899][ T7544]
[ 273.477927][ T7544] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 273.799030][ T7544] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 274.110711][ T7549] loop3: detected capacity change from 0 to 32768
[ 274.161783][ T7549] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 274.178864][ T7549] CPU: 0 UID: 0 PID: 7549 Comm: syz.3.263 Not tainted syzkaller #0 PREEMPT(full)
[ 274.178891][ T7549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 274.178903][ T7549] Call Trace:
[ 274.178909][ T7549]
[ 274.178918][ T7549] dump_stack_lvl+0xe8/0x150
[ 274.178946][ T7549] sysfs_create_dir_ns+0x271/0x2a0
[ 274.178972][ T7549] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 274.178997][ T7549] ? do_raw_spin_unlock+0xf5/0x210
[ 274.179019][ T7549] kobject_add_internal+0x62b/0xd00
[ 274.179057][ T7549] kobject_init_and_add+0x12b/0x1a0
[ 274.179081][ T7549] ? __pfx_kobject_init_and_add+0x10/0x10
[ 274.179101][ T7549] ? __raw_spin_lock_init+0x45/0x100
[ 274.179123][ T7549] ? __init_swait_queue_head+0xa9/0x150
[ 274.179145][ T7549] gfs2_sys_fs_add+0x257/0x480
[ 274.179163][ T7549] ? is_dynamic_key+0x1ac/0x1c0
[ 274.179184][ T7549] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 274.179212][ T7549] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 274.179244][ T7549] gfs2_fill_super+0x13a7/0x21d0
[ 274.179279][ T7549] ? __pfx_gfs2_fill_super+0x10/0x10
[ 274.179307][ T7549] ? sb_set_blocksize+0x155/0x240
[ 274.179336][ T7549] ? setup_bdev_super+0x4c1/0x5b0
[ 274.179360][ T7549] get_tree_bdev_flags+0x431/0x4f0
[ 274.179382][ T7549] ? __pfx_gfs2_fill_super+0x10/0x10
[ 274.179406][ T7549] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 274.179424][ T7549] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 274.179462][ T7549] gfs2_get_tree+0x51/0x1e0
[ 274.179468][ T7551] loop4: detected capacity change from 0 to 32768
[ 274.179489][ T7549] vfs_get_tree+0x92/0x2a0
[ 274.179507][ T7549] do_new_mount+0x341/0xd30
[ 274.179524][ T7549] ? apparmor_capable+0x126/0x170
[ 274.179549][ T7549] ? __pfx_do_new_mount+0x10/0x10
[ 274.179569][ T7549] ? ns_capable+0x89/0xe0
[ 274.179600][ T7549] ? user_path_at+0xd4/0x160
[ 274.179629][ T7549] __se_sys_mount+0x31d/0x420
[ 274.179658][ T7549] ? __pfx___se_sys_mount+0x10/0x10
[ 274.179685][ T7549] ? __x64_sys_mount+0x20/0xc0
[ 274.179711][ T7549] do_syscall_64+0x14d/0xf80
[ 274.179728][ T7549] ? trace_irq_disable+0x3b/0x150
[ 274.179753][ T7549] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 274.179772][ T7549] ? clear_bhb_loop+0x40/0x90
[ 274.179794][ T7549] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 274.179812][ T7549] RIP: 0033:0x7f162ad9b5ca
[ 274.179831][ T7549] 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
[ 274.179847][ T7549] RSP: 002b:00007f162bc96e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 274.179867][ T7549] RAX: ffffffffffffffda RBX: 00007f162bc96ee0 RCX: 00007f162ad9b5ca
[ 274.179881][ T7549] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f162bc96ea0
[ 274.179895][ T7549] RBP: 000020000001f680 R08: 00007f162bc96ee0 R09: 0000000000000084
[ 274.179907][ T7549] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 274.179920][ T7549] R13: 00007f162bc96ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 274.179949][ T7549]
[ 274.179976][ T7549] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 274.288323][ T7551] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 274.364339][ T7549] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 274.495763][ T7553] loop5: detected capacity change from 0 to 32768
[ 274.518759][ T7551] CPU: 0 UID: 0 PID: 7551 Comm: syz.4.264 Not tainted syzkaller #0 PREEMPT(full)
[ 274.518785][ T7551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 274.518797][ T7551] Call Trace:
[ 274.518805][ T7551]
[ 274.518814][ T7551] dump_stack_lvl+0xe8/0x150
[ 274.518845][ T7551] sysfs_create_dir_ns+0x271/0x2a0
[ 274.518872][ T7551] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 274.518898][ T7551] ? do_raw_spin_unlock+0xf5/0x210
[ 274.518921][ T7551] kobject_add_internal+0x62b/0xd00
[ 274.518949][ T7551] kobject_init_and_add+0x12b/0x1a0
[ 274.518973][ T7551] ? __pfx_kobject_init_and_add+0x10/0x10
[ 274.518995][ T7551] ? __raw_spin_lock_init+0x45/0x100
[ 274.519015][ T7551] ? __init_swait_queue_head+0xa9/0x150
[ 274.519046][ T7551] gfs2_sys_fs_add+0x257/0x480
[ 274.519065][ T7551] ? is_dynamic_key+0x1ac/0x1c0
[ 274.519088][ T7551] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 274.519116][ T7551] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 274.519146][ T7551] gfs2_fill_super+0x13a7/0x21d0
[ 274.519184][ T7551] ? __pfx_gfs2_fill_super+0x10/0x10
[ 274.519213][ T7551] ? sb_set_blocksize+0x155/0x240
[ 274.519240][ T7551] ? setup_bdev_super+0x4c1/0x5b0
[ 274.519263][ T7551] get_tree_bdev_flags+0x431/0x4f0
[ 274.519282][ T7551] ? __pfx_gfs2_fill_super+0x10/0x10
[ 274.519306][ T7551] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 274.519323][ T7551] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 274.519360][ T7551] gfs2_get_tree+0x51/0x1e0
[ 274.519387][ T7551] vfs_get_tree+0x92/0x2a0
[ 274.519409][ T7551] do_new_mount+0x341/0xd30
[ 274.519431][ T7551] ? apparmor_capable+0x126/0x170
[ 274.519460][ T7551] ? __pfx_do_new_mount+0x10/0x10
[ 274.519484][ T7551] ? ns_capable+0x89/0xe0
[ 274.519517][ T7551] ? user_path_at+0xd4/0x160
[ 274.519545][ T7551] __se_sys_mount+0x31d/0x420
[ 274.519574][ T7551] ? __pfx___se_sys_mount+0x10/0x10
[ 274.519604][ T7551] ? __x64_sys_mount+0x20/0xc0
[ 274.519630][ T7551] do_syscall_64+0x14d/0xf80
[ 274.519647][ T7551] ? trace_irq_disable+0x3b/0x150
[ 274.519671][ T7551] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 274.519690][ T7551] ? clear_bhb_loop+0x40/0x90
[ 274.519712][ T7551] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 274.519730][ T7551] RIP: 0033:0x7fc53b39b5ca
[ 274.519748][ T7551] 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
[ 274.519764][ T7551] RSP: 002b:00007fc53c176e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 274.519784][ T7551] RAX: ffffffffffffffda RBX: 00007fc53c176ee0 RCX: 00007fc53b39b5ca
[ 274.519799][ T7551] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fc53c176ea0
[ 274.519812][ T7551] RBP: 000020000001f680 R08: 00007fc53c176ee0 R09: 0000000000000084
[ 274.519825][ T7551] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 274.519837][ T7551] R13: 00007fc53c176ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 274.519866][ T7551]
[ 274.519892][ T7551] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 274.628954][ T7553] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 274.781171][ T7551] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 274.879213][ T7553] CPU: 1 UID: 0 PID: 7553 Comm: syz.5.265 Not tainted syzkaller #0 PREEMPT(full)
[ 274.879242][ T7553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 274.879330][ T7553] Call Trace:
[ 274.879338][ T7553]
[ 274.879347][ T7553] dump_stack_lvl+0xe8/0x150
[ 274.879378][ T7553] sysfs_create_dir_ns+0x271/0x2a0
[ 274.879407][ T7553] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 274.879434][ T7553] ? do_raw_spin_unlock+0xf5/0x210
[ 274.879459][ T7553] kobject_add_internal+0x62b/0xd00
[ 274.879488][ T7553] kobject_init_and_add+0x12b/0x1a0
[ 274.879514][ T7553] ? __pfx_kobject_init_and_add+0x10/0x10
[ 274.879536][ T7553] ? __raw_spin_lock_init+0x45/0x100
[ 274.879559][ T7553] ? __init_swait_queue_head+0xa9/0x150
[ 274.879582][ T7553] gfs2_sys_fs_add+0x257/0x480
[ 274.879604][ T7553] ? is_dynamic_key+0x1ac/0x1c0
[ 274.879627][ T7553] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 274.879652][ T7553] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 274.879683][ T7553] gfs2_fill_super+0x13a7/0x21d0
[ 274.879721][ T7553] ? __pfx_gfs2_fill_super+0x10/0x10
[ 274.879750][ T7553] ? sb_set_blocksize+0x155/0x240
[ 274.879778][ T7553] ? setup_bdev_super+0x4c1/0x5b0
[ 274.879803][ T7553] get_tree_bdev_flags+0x431/0x4f0
[ 274.879824][ T7553] ? __pfx_gfs2_fill_super+0x10/0x10
[ 274.879848][ T7553] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 274.879865][ T7553] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 274.879902][ T7553] gfs2_get_tree+0x51/0x1e0
[ 274.879931][ T7553] vfs_get_tree+0x92/0x2a0
[ 274.879955][ T7553] do_new_mount+0x341/0xd30
[ 274.879977][ T7553] ? apparmor_capable+0x126/0x170
[ 274.880004][ T7553] ? __pfx_do_new_mount+0x10/0x10
[ 274.880083][ T7553] ? ns_capable+0x89/0xe0
[ 274.880117][ T7553] ? user_path_at+0xd4/0x160
[ 274.880148][ T7553] __se_sys_mount+0x31d/0x420
[ 274.880179][ T7553] ? __pfx___se_sys_mount+0x10/0x10
[ 274.880212][ T7553] ? __x64_sys_mount+0x20/0xc0
[ 274.880239][ T7553] do_syscall_64+0x14d/0xf80
[ 274.880257][ T7553] ? trace_irq_disable+0x3b/0x150
[ 274.880279][ T7553] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 274.880295][ T7553] ? clear_bhb_loop+0x40/0x90
[ 274.880317][ T7553] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 274.880337][ T7553] RIP: 0033:0x7f656819b5ca
[ 274.880357][ T7553] 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
[ 274.880374][ T7553] RSP: 002b:00007f6569010e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 274.880394][ T7553] RAX: ffffffffffffffda RBX: 00007f6569010ee0 RCX: 00007f656819b5ca
[ 274.880408][ T7553] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6569010ea0
[ 274.880422][ T7553] RBP: 000020000001f680 R08: 00007f6569010ee0 R09: 0000000000000084
[ 274.880436][ T7553] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 274.880450][ T7553] R13: 00007f6569010ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 274.880480][ T7553]
[ 274.880507][ T7553] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 275.143440][ T7555] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 275.188984][ T7553] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 275.257161][ T7555] CPU: 1 UID: 0 PID: 7555 Comm: syz.0.266 Not tainted syzkaller #0 PREEMPT(full)
[ 275.257189][ T7555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 275.257201][ T7555] Call Trace:
[ 275.257210][ T7555]
[ 275.257218][ T7555] dump_stack_lvl+0xe8/0x150
[ 275.257249][ T7555] sysfs_create_dir_ns+0x271/0x2a0
[ 275.257278][ T7555] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 275.257304][ T7555] ? do_raw_spin_unlock+0xf5/0x210
[ 275.257329][ T7555] kobject_add_internal+0x62b/0xd00
[ 275.257358][ T7555] kobject_init_and_add+0x12b/0x1a0
[ 275.257384][ T7555] ? __pfx_kobject_init_and_add+0x10/0x10
[ 275.257406][ T7555] ? __raw_spin_lock_init+0x45/0x100
[ 275.257427][ T7555] ? __init_swait_queue_head+0xa9/0x150
[ 275.257450][ T7555] gfs2_sys_fs_add+0x257/0x480
[ 275.257470][ T7555] ? is_dynamic_key+0x1ac/0x1c0
[ 275.257493][ T7555] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 275.257522][ T7555] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 275.257554][ T7555] gfs2_fill_super+0x13a7/0x21d0
[ 275.257593][ T7555] ? __pfx_gfs2_fill_super+0x10/0x10
[ 275.257622][ T7555] ? sb_set_blocksize+0x155/0x240
[ 275.257651][ T7555] ? setup_bdev_super+0x4c1/0x5b0
[ 275.257674][ T7555] get_tree_bdev_flags+0x431/0x4f0
[ 275.257695][ T7555] ? __pfx_gfs2_fill_super+0x10/0x10
[ 275.257719][ T7555] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 275.257738][ T7555] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 275.257776][ T7555] gfs2_get_tree+0x51/0x1e0
[ 275.257804][ T7555] vfs_get_tree+0x92/0x2a0
[ 275.257826][ T7555] do_new_mount+0x341/0xd30
[ 275.257849][ T7555] ? apparmor_capable+0x126/0x170
[ 275.257885][ T7555] ? __pfx_do_new_mount+0x10/0x10
[ 275.257909][ T7555] ? ns_capable+0x89/0xe0
[ 275.257944][ T7555] ? user_path_at+0xd4/0x160
[ 275.257973][ T7555] __se_sys_mount+0x31d/0x420
[ 275.258003][ T7555] ? __pfx___se_sys_mount+0x10/0x10
[ 275.258034][ T7555] ? __x64_sys_mount+0x20/0xc0
[ 275.258060][ T7555] do_syscall_64+0x14d/0xf80
[ 275.258078][ T7555] ? trace_irq_disable+0x3b/0x150
[ 275.258104][ T7555] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 275.258123][ T7555] ? clear_bhb_loop+0x40/0x90
[ 275.258147][ T7555] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 275.258166][ T7555] RIP: 0033:0x7f372f99b5ca
[ 275.258184][ T7555] 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
[ 275.258202][ T7555] RSP: 002b:00007f37308dae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 275.258222][ T7555] RAX: ffffffffffffffda RBX: 00007f37308daee0 RCX: 00007f372f99b5ca
[ 275.258237][ T7555] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f37308daea0
[ 275.258251][ T7555] RBP: 000020000001f680 R08: 00007f37308daee0 R09: 0000000000000084
[ 275.258265][ T7555] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 275.258278][ T7555] R13: 00007f37308daea0 R14: 000000000001f790 R15: 00002000000001c0
[ 275.258309][ T7555]
[ 275.258335][ T7555] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 275.600482][ T7555] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 276.250541][ T7563] set_capacity_and_notify: 1 callbacks suppressed
[ 276.250558][ T7563] loop2: detected capacity change from 0 to 32768
[ 276.321939][ T7563] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 276.350512][ T7563] CPU: 0 UID: 0 PID: 7563 Comm: syz.2.267 Not tainted syzkaller #0 PREEMPT(full)
[ 276.350541][ T7563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 276.350554][ T7563] Call Trace:
[ 276.350562][ T7563]
[ 276.350570][ T7563] dump_stack_lvl+0xe8/0x150
[ 276.350626][ T7563] sysfs_create_dir_ns+0x271/0x2a0
[ 276.350655][ T7563] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 276.350682][ T7563] ? do_raw_spin_unlock+0xf5/0x210
[ 276.350707][ T7563] kobject_add_internal+0x62b/0xd00
[ 276.350736][ T7563] kobject_init_and_add+0x12b/0x1a0
[ 276.350761][ T7563] ? __pfx_kobject_init_and_add+0x10/0x10
[ 276.350790][ T7563] ? __raw_spin_lock_init+0x45/0x100
[ 276.350811][ T7563] ? __init_swait_queue_head+0xa9/0x150
[ 276.350834][ T7563] gfs2_sys_fs_add+0x257/0x480
[ 276.350854][ T7563] ? is_dynamic_key+0x1ac/0x1c0
[ 276.350878][ T7563] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 276.350907][ T7563] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 276.350940][ T7563] gfs2_fill_super+0x13a7/0x21d0
[ 276.350979][ T7563] ? __pfx_gfs2_fill_super+0x10/0x10
[ 276.351008][ T7563] ? sb_set_blocksize+0x155/0x240
[ 276.351035][ T7563] ? setup_bdev_super+0x4c1/0x5b0
[ 276.351059][ T7563] get_tree_bdev_flags+0x431/0x4f0
[ 276.351081][ T7563] ? __pfx_gfs2_fill_super+0x10/0x10
[ 276.351105][ T7563] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 276.351123][ T7563] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 276.351161][ T7563] gfs2_get_tree+0x51/0x1e0
[ 276.351189][ T7563] vfs_get_tree+0x92/0x2a0
[ 276.351211][ T7563] do_new_mount+0x341/0xd30
[ 276.351234][ T7563] ? apparmor_capable+0x126/0x170
[ 276.351264][ T7563] ? __pfx_do_new_mount+0x10/0x10
[ 276.351288][ T7563] ? ns_capable+0x89/0xe0
[ 276.351321][ T7563] ? user_path_at+0xd4/0x160
[ 276.351350][ T7563] __se_sys_mount+0x31d/0x420
[ 276.351381][ T7563] ? __pfx___se_sys_mount+0x10/0x10
[ 276.351411][ T7563] ? __x64_sys_mount+0x20/0xc0
[ 276.351438][ T7563] do_syscall_64+0x14d/0xf80
[ 276.351455][ T7563] ? trace_irq_disable+0x3b/0x150
[ 276.351481][ T7563] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 276.351500][ T7563] ? clear_bhb_loop+0x40/0x90
[ 276.351523][ T7563] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 276.351542][ T7563] RIP: 0033:0x7f9dd639b5ca
[ 276.351561][ T7563] 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
[ 276.351578][ T7563] RSP: 002b:00007f9dd72dde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 276.351599][ T7563] RAX: ffffffffffffffda RBX: 00007f9dd72ddee0 RCX: 00007f9dd639b5ca
[ 276.351614][ T7563] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f9dd72ddea0
[ 276.351627][ T7563] RBP: 000020000001f680 R08: 00007f9dd72ddee0 R09: 0000000000000084
[ 276.351640][ T7563] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 276.351654][ T7563] R13: 00007f9dd72ddea0 R14: 000000000001f790 R15: 00002000000001c0
[ 276.351684][ T7563]
[ 276.351709][ T7563] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 276.426962][ T7569] loop3: detected capacity change from 0 to 32768
[ 276.670179][ T7563] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 276.751145][ T7569] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 276.852006][ T7569] CPU: 1 UID: 0 PID: 7569 Comm: syz.3.268 Not tainted syzkaller #0 PREEMPT(full)
[ 276.852043][ T7569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 276.852056][ T7569] Call Trace:
[ 276.852063][ T7569]
[ 276.852070][ T7569] dump_stack_lvl+0xe8/0x150
[ 276.852099][ T7569] sysfs_create_dir_ns+0x271/0x2a0
[ 276.852126][ T7569] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 276.852151][ T7569] ? do_raw_spin_unlock+0xf5/0x210
2026/02/13 13:26:40 executed programs: 265
[ 276.852175][ T7569] kobject_add_internal+0x62b/0xd00
[ 276.852202][ T7569] kobject_init_and_add+0x12b/0x1a0
[ 276.852225][ T7569] ? __pfx_kobject_init_and_add+0x10/0x10
[ 276.852247][ T7569] ? __raw_spin_lock_init+0x45/0x100
[ 276.852266][ T7569] ? __init_swait_queue_head+0xa9/0x150
[ 276.852288][ T7569] gfs2_sys_fs_add+0x257/0x480
[ 276.852307][ T7569] ? is_dynamic_key+0x1ac/0x1c0
[ 276.852331][ T7569] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 276.852359][ T7569] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 276.852391][ T7569] gfs2_fill_super+0x13a7/0x21d0
[ 276.852427][ T7569] ? __pfx_gfs2_fill_super+0x10/0x10
[ 276.852455][ T7569] ? sb_set_blocksize+0x155/0x240
[ 276.852483][ T7569] ? setup_bdev_super+0x4c1/0x5b0
[ 276.852506][ T7569] get_tree_bdev_flags+0x431/0x4f0
[ 276.852527][ T7569] ? __pfx_gfs2_fill_super+0x10/0x10
[ 276.852551][ T7569] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 276.852568][ T7569] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 276.852605][ T7569] gfs2_get_tree+0x51/0x1e0
[ 276.852633][ T7569] vfs_get_tree+0x92/0x2a0
[ 276.852654][ T7569] do_new_mount+0x341/0xd30
[ 276.852675][ T7569] ? apparmor_capable+0x126/0x170
[ 276.852705][ T7569] ? __pfx_do_new_mount+0x10/0x10
[ 276.852729][ T7569] ? ns_capable+0x89/0xe0
[ 276.852761][ T7569] ? user_path_at+0xd4/0x160
[ 276.852791][ T7569] __se_sys_mount+0x31d/0x420
[ 276.852823][ T7569] ? __pfx___se_sys_mount+0x10/0x10
[ 276.852854][ T7569] ? __x64_sys_mount+0x20/0xc0
[ 276.852881][ T7569] do_syscall_64+0x14d/0xf80
[ 276.852899][ T7569] ? trace_irq_disable+0x3b/0x150
[ 276.852924][ T7569] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 276.852943][ T7569] ? clear_bhb_loop+0x40/0x90
[ 276.852966][ T7569] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 276.852985][ T7569] RIP: 0033:0x7f162ad9b5ca
[ 276.853004][ T7569] 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
[ 276.853028][ T7569] RSP: 002b:00007f162bc96e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 276.853048][ T7569] RAX: ffffffffffffffda RBX: 00007f162bc96ee0 RCX: 00007f162ad9b5ca
[ 276.853063][ T7569] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f162bc96ea0
[ 276.853076][ T7569] RBP: 000020000001f680 R08: 00007f162bc96ee0 R09: 0000000000000084
[ 276.853090][ T7569] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 276.853103][ T7569] R13: 00007f162bc96ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 276.853133][ T7569]
[ 276.853158][ T7569] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 276.930504][ T31] INFO: task kworker/0:2:797 blocked for more than 143 seconds.
[ 277.215147][ T7569] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 277.378794][ T31] Not tainted syzkaller #0
[ 277.383982][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 277.438113][ T31] task:kworker/0:2 state:D stack:26016 pid:797 tgid:797 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 277.481979][ T31] Workqueue: gfs2_recovery gfs2_recover_func
[ 277.488033][ T31] Call Trace:
[ 277.512413][ T31]
[ 277.515404][ T31] __schedule+0x1585/0x5340
[ 277.535662][ T31] ? __lock_acquire+0x146e/0x2cf0
[ 277.557663][ T7575] loop0: detected capacity change from 0 to 32768
[ 277.565373][ T31] ? __pfx___schedule+0x10/0x10
[ 277.573719][ T31] ? schedule+0x90/0x360
[ 277.586530][ T31] schedule+0x164/0x360
[ 277.598262][ T31] io_schedule+0x7f/0xd0
[ 277.608543][ T7571] loop4: detected capacity change from 0 to 32768
[ 277.617755][ T31] folio_wait_bit_common+0x6d8/0xbc0
[ 277.629196][ T31] ? __pfx_folio_wait_bit_common+0x10/0x10
[ 277.635303][ T31] ? __submit_bio+0x28d/0x580
[ 277.641209][ T7575] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 277.651699][ T31] ? __pfx_wake_page_function+0x10/0x10
[ 277.657973][ T31] ? __get_log_header+0x2a3/0x630
[ 277.666327][ T31] ? __filemap_get_folio_mpol+0x780/0xb00
[ 277.678372][ T7573] loop5: detected capacity change from 0 to 32768
[ 277.717936][ T7571] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 277.725564][ T7571] CPU: 0 UID: 0 PID: 7571 Comm: syz.4.269 Not tainted syzkaller #0 PREEMPT(full)
[ 277.725589][ T7571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 277.725603][ T7571] Call Trace:
[ 277.725610][ T7571]
[ 277.725618][ T7571] dump_stack_lvl+0xe8/0x150
[ 277.725650][ T7571] sysfs_create_dir_ns+0x271/0x2a0
[ 277.725677][ T7571] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 277.725704][ T7571] ? do_raw_spin_unlock+0xf5/0x210
[ 277.725728][ T7571] kobject_add_internal+0x62b/0xd00
[ 277.725758][ T7571] kobject_init_and_add+0x12b/0x1a0
[ 277.725785][ T7571] ? __pfx_kobject_init_and_add+0x10/0x10
[ 277.725808][ T7571] ? __raw_spin_lock_init+0x45/0x100
[ 277.725829][ T7571] ? __init_swait_queue_head+0xa9/0x150
[ 277.725860][ T7571] gfs2_sys_fs_add+0x257/0x480
[ 277.725881][ T7571] ? is_dynamic_key+0x1ac/0x1c0
[ 277.725906][ T7571] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 277.725934][ T7571] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 277.725967][ T7571] gfs2_fill_super+0x13a7/0x21d0
[ 277.726007][ T7571] ? __pfx_gfs2_fill_super+0x10/0x10
[ 277.726037][ T7571] ? sb_set_blocksize+0x155/0x240
[ 277.726065][ T7571] ? setup_bdev_super+0x4c1/0x5b0
[ 277.726089][ T7571] get_tree_bdev_flags+0x431/0x4f0
[ 277.726111][ T7571] ? __pfx_gfs2_fill_super+0x10/0x10
[ 277.726136][ T7571] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 277.726154][ T7571] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 277.726192][ T7571] gfs2_get_tree+0x51/0x1e0
[ 277.726220][ T7571] vfs_get_tree+0x92/0x2a0
[ 277.726243][ T7571] do_new_mount+0x341/0xd30
[ 277.726266][ T7571] ? apparmor_capable+0x126/0x170
[ 277.726296][ T7571] ? __pfx_do_new_mount+0x10/0x10
[ 277.726320][ T7571] ? ns_capable+0x89/0xe0
[ 277.726353][ T7571] ? user_path_at+0xd4/0x160
[ 277.726382][ T7571] __se_sys_mount+0x31d/0x420
[ 277.726413][ T7571] ? __pfx___se_sys_mount+0x10/0x10
[ 277.726444][ T7571] ? __x64_sys_mount+0x20/0xc0
[ 277.726470][ T7571] do_syscall_64+0x14d/0xf80
[ 277.726488][ T7571] ? trace_irq_disable+0x3b/0x150
[ 277.726513][ T7571] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 277.726533][ T7571] ? clear_bhb_loop+0x40/0x90
[ 277.726556][ T7571] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 277.726575][ T7571] RIP: 0033:0x7fc53b39b5ca
[ 277.726594][ T7571] 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
[ 277.726611][ T7571] RSP: 002b:00007fc53c176e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 277.726632][ T7571] RAX: ffffffffffffffda RBX: 00007fc53c176ee0 RCX: 00007fc53b39b5ca
[ 277.726646][ T7571] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fc53c176ea0
[ 277.726659][ T7571] RBP: 000020000001f680 R08: 00007fc53c176ee0 R09: 0000000000000084
[ 277.726672][ T7571] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 277.726684][ T7571] R13: 00007fc53c176ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 277.726714][ T7571]
[ 277.726740][ T7571] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 277.845668][ T7581] loop2: detected capacity change from 0 to 32768
[ 277.867314][ T7575] CPU: 0 UID: 0 PID: 7575 Comm: syz.0.271 Not tainted syzkaller #0 PREEMPT(full)
[ 277.867340][ T7575] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 277.867351][ T7575] Call Trace:
[ 277.867359][ T7575]
[ 277.867367][ T7575] dump_stack_lvl+0xe8/0x150
[ 277.867398][ T7575] sysfs_create_dir_ns+0x271/0x2a0
[ 277.867425][ T7575] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 277.867450][ T7575] ? do_raw_spin_unlock+0xf5/0x210
[ 277.867474][ T7575] kobject_add_internal+0x62b/0xd00
[ 277.867502][ T7575] kobject_init_and_add+0x12b/0x1a0
[ 277.867527][ T7575] ? __pfx_kobject_init_and_add+0x10/0x10
[ 277.867549][ T7575] ? __raw_spin_lock_init+0x45/0x100
[ 277.867569][ T7575] ? __init_swait_queue_head+0xa9/0x150
[ 277.867591][ T7575] gfs2_sys_fs_add+0x257/0x480
[ 277.867610][ T7575] ? is_dynamic_key+0x1ac/0x1c0
[ 277.867633][ T7575] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 277.867661][ T7575] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 277.867693][ T7575] gfs2_fill_super+0x13a7/0x21d0
[ 277.867732][ T7575] ? __pfx_gfs2_fill_super+0x10/0x10
[ 277.867760][ T7575] ? sb_set_blocksize+0x155/0x240
[ 277.867787][ T7575] ? setup_bdev_super+0x4c1/0x5b0
[ 277.867810][ T7575] get_tree_bdev_flags+0x431/0x4f0
[ 277.867837][ T7575] ? __pfx_gfs2_fill_super+0x10/0x10
[ 277.867860][ T7575] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 277.867878][ T7575] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 277.867916][ T7575] gfs2_get_tree+0x51/0x1e0
[ 277.867942][ T7575] vfs_get_tree+0x92/0x2a0
[ 277.867964][ T7575] do_new_mount+0x341/0xd30
[ 277.867987][ T7575] ? apparmor_capable+0x126/0x170
[ 277.868015][ T7575] ? __pfx_do_new_mount+0x10/0x10
[ 277.868039][ T7575] ? ns_capable+0x89/0xe0
[ 277.868072][ T7575] ? user_path_at+0xd4/0x160
[ 277.868100][ T7575] __se_sys_mount+0x31d/0x420
[ 277.868130][ T7575] ? __pfx___se_sys_mount+0x10/0x10
[ 277.868160][ T7575] ? __x64_sys_mount+0x20/0xc0
[ 277.868186][ T7575] do_syscall_64+0x14d/0xf80
[ 277.868203][ T7575] ? trace_irq_disable+0x3b/0x150
[ 277.868228][ T7575] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 277.868246][ T7575] ? clear_bhb_loop+0x40/0x90
[ 277.868268][ T7575] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 277.868287][ T7575] RIP: 0033:0x7f372f99b5ca
[ 277.868305][ T7575] 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
[ 277.868321][ T7575] RSP: 002b:00007f37308dae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 277.868341][ T7575] RAX: ffffffffffffffda RBX: 00007f37308daee0 RCX: 00007f372f99b5ca
[ 277.868355][ T7575] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f37308daea0
[ 277.868367][ T7575] RBP: 000020000001f680 R08: 00007f37308daee0 R09: 0000000000000084
[ 277.868379][ T7575] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 277.868391][ T7575] R13: 00007f37308daea0 R14: 000000000001f790 R15: 00002000000001c0
[ 277.868420][ T7575]
[ 277.868444][ T7575] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 277.888879][ T31] gfs2_jhead_process_page+0x175/0x670
[ 277.917225][ T7575] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 277.986023][ T31] ? __pfx_gfs2_jhead_process_page+0x10/0x10
[ 277.986088][ T31] gfs2_find_jhead+0xbd2/0xd30
[ 277.986137][ T31] gfs2_recover_func+0x6cf/0x1f60
[ 277.986165][ T31] ? ret_from_fork_asm+0x1a/0x30
[ 278.068157][ T7571] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 278.075025][ T7581] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 278.218135][ T31] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 278.264274][ T7581] CPU: 1 UID: 0 PID: 7581 Comm: syz.2.272 Not tainted syzkaller #0 PREEMPT(full)
[ 278.264299][ T7581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 278.264311][ T7581] Call Trace:
[ 278.264320][ T7581]
[ 278.264327][ T7581] dump_stack_lvl+0xe8/0x150
[ 278.264358][ T7581] sysfs_create_dir_ns+0x271/0x2a0
[ 278.264387][ T7581] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 278.264412][ T7581] ? do_raw_spin_unlock+0xf5/0x210
[ 278.264436][ T7581] kobject_add_internal+0x62b/0xd00
[ 278.264465][ T7581] kobject_init_and_add+0x12b/0x1a0
[ 278.264491][ T7581] ? __pfx_kobject_init_and_add+0x10/0x10
[ 278.264513][ T7581] ? __raw_spin_lock_init+0x45/0x100
[ 278.264533][ T7581] ? __init_swait_queue_head+0xa9/0x150
[ 278.264555][ T7581] gfs2_sys_fs_add+0x257/0x480
[ 278.264575][ T7581] ? is_dynamic_key+0x1ac/0x1c0
[ 278.264604][ T7581] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 278.264632][ T7581] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 278.264664][ T7581] gfs2_fill_super+0x13a7/0x21d0
[ 278.264702][ T7581] ? __pfx_gfs2_fill_super+0x10/0x10
[ 278.264730][ T7581] ? sb_set_blocksize+0x155/0x240
[ 278.264758][ T7581] ? setup_bdev_super+0x4c1/0x5b0
[ 278.264781][ T7581] get_tree_bdev_flags+0x431/0x4f0
[ 278.264801][ T7581] ? __pfx_gfs2_fill_super+0x10/0x10
[ 278.264824][ T7581] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 278.264842][ T7581] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 278.264878][ T7581] gfs2_get_tree+0x51/0x1e0
[ 278.264905][ T7581] vfs_get_tree+0x92/0x2a0
[ 278.264927][ T7581] do_new_mount+0x341/0xd30
[ 278.264950][ T7581] ? apparmor_capable+0x126/0x170
[ 278.264979][ T7581] ? __pfx_do_new_mount+0x10/0x10
[ 278.265002][ T7581] ? ns_capable+0x89/0xe0
[ 278.265035][ T7581] ? user_path_at+0xd4/0x160
[ 278.265063][ T7581] __se_sys_mount+0x31d/0x420
[ 278.265093][ T7581] ? __pfx___se_sys_mount+0x10/0x10
[ 278.265123][ T7581] ? __x64_sys_mount+0x20/0xc0
[ 278.265149][ T7581] do_syscall_64+0x14d/0xf80
[ 278.265166][ T7581] ? trace_irq_disable+0x3b/0x150
[ 278.265190][ T7581] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 278.265208][ T7581] ? clear_bhb_loop+0x40/0x90
[ 278.265235][ T7581] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 278.265253][ T7581] RIP: 0033:0x7f9dd639b5ca
[ 278.265271][ T7581] 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
[ 278.265287][ T7581] RSP: 002b:00007f9dd72dde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 278.265306][ T7581] RAX: ffffffffffffffda RBX: 00007f9dd72ddee0 RCX: 00007f9dd639b5ca
[ 278.265320][ T7581] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f9dd72ddea0
[ 278.265333][ T7581] RBP: 000020000001f680 R08: 00007f9dd72ddee0 R09: 0000000000000084
[ 278.265346][ T7581] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 278.265358][ T7581] R13: 00007f9dd72ddea0 R14: 000000000001f790 R15: 00002000000001c0
[ 278.265387][ T7581]
[ 278.265412][ T7581] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 278.398923][ T7573] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 278.431033][ T31] ? arch_stack_walk+0x11b/0x150
[ 278.438741][ T7581] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 278.459141][ T7573] CPU: 1 UID: 0 PID: 7573 Comm: syz.5.270 Not tainted syzkaller #0 PREEMPT(full)
[ 278.459166][ T7573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 278.459178][ T7573] Call Trace:
[ 278.459186][ T7573]
[ 278.459195][ T7573] dump_stack_lvl+0xe8/0x150
[ 278.459225][ T7573] sysfs_create_dir_ns+0x271/0x2a0
[ 278.459253][ T7573] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 278.459279][ T7573] ? do_raw_spin_unlock+0xf5/0x210
[ 278.459303][ T7573] kobject_add_internal+0x62b/0xd00
[ 278.459332][ T7573] kobject_init_and_add+0x12b/0x1a0
[ 278.459357][ T7573] ? __pfx_kobject_init_and_add+0x10/0x10
[ 278.459378][ T7573] ? __raw_spin_lock_init+0x45/0x100
[ 278.459399][ T7573] ? __init_swait_queue_head+0xa9/0x150
[ 278.459422][ T7573] gfs2_sys_fs_add+0x257/0x480
[ 278.459442][ T7573] ? is_dynamic_key+0x1ac/0x1c0
[ 278.459465][ T7573] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 278.459493][ T7573] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 278.459524][ T7573] gfs2_fill_super+0x13a7/0x21d0
[ 278.459562][ T7573] ? __pfx_gfs2_fill_super+0x10/0x10
[ 278.459591][ T7573] ? sb_set_blocksize+0x155/0x240
[ 278.459618][ T7573] ? setup_bdev_super+0x4c1/0x5b0
[ 278.459640][ T7573] get_tree_bdev_flags+0x431/0x4f0
[ 278.459661][ T7573] ? __pfx_gfs2_fill_super+0x10/0x10
[ 278.459684][ T7573] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 278.459702][ T7573] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 278.459739][ T7573] gfs2_get_tree+0x51/0x1e0
[ 278.459767][ T7573] vfs_get_tree+0x92/0x2a0
[ 278.459788][ T7573] do_new_mount+0x341/0xd30
[ 278.459819][ T7573] ? apparmor_capable+0x126/0x170
[ 278.459849][ T7573] ? __pfx_do_new_mount+0x10/0x10
[ 278.459872][ T7573] ? ns_capable+0x89/0xe0
[ 278.459905][ T7573] ? user_path_at+0xd4/0x160
[ 278.459934][ T7573] __se_sys_mount+0x31d/0x420
[ 278.459964][ T7573] ? __pfx___se_sys_mount+0x10/0x10
[ 278.459994][ T7573] ? __x64_sys_mount+0x20/0xc0
[ 278.460020][ T7573] do_syscall_64+0x14d/0xf80
[ 278.460038][ T7573] ? trace_irq_disable+0x3b/0x150
[ 278.460062][ T7573] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 278.460081][ T7573] ? clear_bhb_loop+0x40/0x90
[ 278.460103][ T7573] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 278.460121][ T7573] RIP: 0033:0x7f656819b5ca
[ 278.460139][ T7573] 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
[ 278.460155][ T7573] RSP: 002b:00007f6569010e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 278.460174][ T7573] RAX: ffffffffffffffda RBX: 00007f6569010ee0 RCX: 00007f656819b5ca
[ 278.460188][ T7573] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6569010ea0
[ 278.460202][ T7573] RBP: 000020000001f680 R08: 00007f6569010ee0 R09: 0000000000000084
[ 278.460215][ T7573] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 278.460227][ T7573] R13: 00007f6569010ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 278.460255][ T7573]
[ 278.460280][ T7573] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 278.631054][ T31] ? ret_from_fork_asm+0x1a/0x30
[ 279.057310][ T31] ? __pfx_gfs2_recover_func+0x10/0x10
[ 279.063003][ T31] ? stack_trace_save+0xa9/0x100
[ 279.067972][ T31] ? __pfx_stack_trace_save+0x10/0x10
[ 279.073553][ T31] ? check_path+0x21/0x40
[ 279.078059][ T31] ? add_lock_to_list+0xc7/0x100
[ 279.086089][ T31] ? lockdep_unlock+0x5d/0xd0
[ 279.091105][ T31] ? __lock_acquire+0x146e/0x2cf0
[ 279.096290][ T31] ? process_one_work+0x87c/0x1650
[ 279.101590][ T31] process_one_work+0x949/0x1650
[ 279.106845][ T31] ? __pfx_process_one_work+0x10/0x10
[ 279.112545][ T31] ? do_raw_spin_lock+0x12b/0x2f0
[ 279.117738][ T31] worker_thread+0xb46/0x1140
[ 279.122552][ T31] kthread+0x388/0x470
[ 279.126656][ T31] ? __pfx_worker_thread+0x10/0x10
[ 279.131891][ T31] ? __pfx_kthread+0x10/0x10
[ 279.136620][ T31] ret_from_fork+0x51e/0xb90
[ 279.141517][ T31] ? __pfx_ret_from_fork+0x10/0x10
[ 279.146657][ T31] ? __switch_to+0xc7d/0x1450
[ 279.151435][ T31] ? __pfx_kthread+0x10/0x10
[ 279.156070][ T31] ret_from_fork_asm+0x1a/0x30
[ 279.166631][ T31]
[ 279.175488][ T31] INFO: task syz.1.18:6445 blocked for more than 145 seconds.
[ 279.185143][ T31] Not tainted syzkaller #0
[ 279.190298][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 279.199150][ T31] task:syz.1.18 state:D stack:23976 pid:6445 tgid:6444 ppid:6245 task_flags:0x400140 flags:0x00080002
[ 279.200343][ T7573] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 279.211546][ T31] Call Trace:
[ 279.231577][ T31]
[ 279.234757][ T31] __schedule+0x1585/0x5340
[ 279.242280][ T31] ? wakeup_preempt_fair+0x69e/0xa40
[ 279.247887][ T31] ? __pfx___schedule+0x10/0x10
[ 279.265393][ T31] ? schedule+0x90/0x360
[ 279.274337][ T31] schedule+0x164/0x360
[ 279.303792][ T31] bit_wait+0x11/0xd0
[ 279.328431][ T31] __wait_on_bit+0xb9/0x310
[ 279.344202][ T31] ? __pfx_bit_wait+0x10/0x10
[ 279.359230][ T31] out_of_line_wait_on_bit+0x13b/0x190
[ 279.378273][ T31] ? __queue_work+0xc76/0x1020
[ 279.424935][ T31] ? __pfx_bit_wait+0x10/0x10
[ 279.448782][ T31] ? __pfx_out_of_line_wait_on_bit+0x10/0x10
[ 279.454871][ T31] ? __pfx_wake_bit_function+0x10/0x10
[ 279.491763][ T31] gfs2_recover_journal+0xda/0x140
[ 279.497145][ T31] init_journal+0x16ad/0x22b0
[ 279.521180][ T31] ? init_inodes+0xdb/0x320
[ 279.544098][ T31] ? __pfx_init_journal+0x10/0x10
[ 279.575449][ T31] ? snprintf+0xe8/0x140
[ 279.593246][ T31] ? init_inodes+0xdb/0x320
[ 279.598002][ T31] ? __pfx_snprintf+0x10/0x10
[ 279.631119][ T31] ? gfs2_glock_nq_num+0x13d/0x170
[ 279.657270][ T31] init_inodes+0xdb/0x320
[ 279.662056][ T31] gfs2_fill_super+0x1a38/0x21d0
[ 279.667047][ T31] ? __pfx_gfs2_fill_super+0x10/0x10
[ 279.692915][ T31] ? init_locking+0xb8/0x210
[ 279.713175][ T31] ? sb_set_blocksize+0x155/0x240
[ 279.728530][ T31] ? setup_bdev_super+0x4c1/0x5b0
[ 279.748698][ T31] get_tree_bdev_flags+0x431/0x4f0
[ 279.764721][ T31] ? __pfx_gfs2_fill_super+0x10/0x10
[ 279.778732][ T31] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 279.794878][ T31] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 279.818827][ T31] gfs2_get_tree+0x51/0x1e0
[ 279.833844][ T31] vfs_get_tree+0x92/0x2a0
[ 279.838586][ T31] do_new_mount+0x341/0xd30
[ 279.863685][ T31] ? apparmor_capable+0x126/0x170
[ 279.889553][ T31] ? __pfx_do_new_mount+0x10/0x10
[ 279.894839][ T31] ? ns_capable+0x89/0xe0
[ 279.918749][ T31] ? user_path_at+0xd4/0x160
[ 279.928993][ T31] __se_sys_mount+0x31d/0x420
[ 279.944083][ T31] ? __pfx___se_sys_mount+0x10/0x10
[ 279.958726][ T31] ? __x64_sys_mount+0x20/0xc0
[ 279.973795][ T31] do_syscall_64+0x14d/0xf80
[ 279.998829][ T31] ? trace_irq_disable+0x3b/0x150
[ 280.006278][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 280.033374][ T31] ? clear_bhb_loop+0x40/0x90
[ 280.038210][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 280.068684][ T31] RIP: 0033:0x7fac8cb9b5ca
[ 280.075143][ T31] RSP: 002b:00007fac8d996e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 280.095202][ T7592] loop3: detected capacity change from 0 to 32768
[ 280.105568][ T31] RAX: ffffffffffffffda RBX: 00007fac8d996ee0 RCX: 00007fac8cb9b5ca
[ 280.136042][ T31] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fac8d996ea0
[ 280.166569][ T31] RBP: 000020000001f680 R08: 00007fac8d996ee0 R09: 0000000000000084
[ 280.182283][ T7592] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 280.198701][ T31] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 280.206829][ T7592] CPU: 1 UID: 0 PID: 7592 Comm: syz.3.273 Not tainted syzkaller #0 PREEMPT(full)
[ 280.206855][ T7592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 280.206866][ T7592] Call Trace:
[ 280.206873][ T7592]
[ 280.206881][ T7592] dump_stack_lvl+0xe8/0x150
[ 280.206911][ T7592] sysfs_create_dir_ns+0x271/0x2a0
[ 280.206937][ T7592] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 280.206960][ T7592] ? do_raw_spin_unlock+0xf5/0x210
[ 280.206984][ T7592] kobject_add_internal+0x62b/0xd00
[ 280.207013][ T7592] kobject_init_and_add+0x12b/0x1a0
[ 280.207039][ T7592] ? __pfx_kobject_init_and_add+0x10/0x10
[ 280.207061][ T7592] ? __raw_spin_lock_init+0x45/0x100
[ 280.207082][ T7592] ? __init_swait_queue_head+0xa9/0x150
[ 280.207104][ T7592] gfs2_sys_fs_add+0x257/0x480
[ 280.207124][ T7592] ? is_dynamic_key+0x1ac/0x1c0
[ 280.207148][ T7592] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 280.207176][ T7592] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 280.207209][ T7592] gfs2_fill_super+0x13a7/0x21d0
[ 280.207250][ T7592] ? __pfx_gfs2_fill_super+0x10/0x10
[ 280.207278][ T7592] ? sb_set_blocksize+0x155/0x240
[ 280.207306][ T7592] ? setup_bdev_super+0x4c1/0x5b0
[ 280.207330][ T7592] get_tree_bdev_flags+0x431/0x4f0
[ 280.207351][ T7592] ? __pfx_gfs2_fill_super+0x10/0x10
[ 280.207375][ T7592] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 280.207393][ T7592] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 280.207432][ T7592] gfs2_get_tree+0x51/0x1e0
[ 280.207460][ T7592] vfs_get_tree+0x92/0x2a0
[ 280.207482][ T7592] do_new_mount+0x341/0xd30
[ 280.207505][ T7592] ? apparmor_capable+0x126/0x170
[ 280.207534][ T7592] ? __pfx_do_new_mount+0x10/0x10
[ 280.207558][ T7592] ? ns_capable+0x89/0xe0
[ 280.207592][ T7592] ? user_path_at+0xd4/0x160
[ 280.207628][ T7592] __se_sys_mount+0x31d/0x420
[ 280.207659][ T7592] ? __pfx___se_sys_mount+0x10/0x10
[ 280.207690][ T7592] ? __x64_sys_mount+0x20/0xc0
[ 280.207716][ T7592] do_syscall_64+0x14d/0xf80
[ 280.207733][ T7592] ? trace_irq_disable+0x3b/0x150
[ 280.207759][ T7592] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 280.207778][ T7592] ? clear_bhb_loop+0x40/0x90
[ 280.207801][ T7592] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 280.207819][ T7592] RIP: 0033:0x7f162ad9b5ca
[ 280.207838][ T7592] 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
[ 280.207854][ T7592] RSP: 002b:00007f162bc96e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 280.207875][ T7592] RAX: ffffffffffffffda RBX: 00007f162bc96ee0 RCX: 00007f162ad9b5ca
[ 280.207889][ T7592] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f162bc96ea0
[ 280.207903][ T7592] RBP: 000020000001f680 R08: 00007f162bc96ee0 R09: 0000000000000084
[ 280.207916][ T7592] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 280.207929][ T7592] R13: 00007f162bc96ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 280.207960][ T7592]
[ 280.207984][ T7592] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 280.208002][ T7592] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 280.486524][ T7594] loop2: detected capacity change from 0 to 32768
[ 280.583102][ T7596] loop4: detected capacity change from 0 to 32768
[ 280.632656][ T7596] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 280.649030][ T7596] CPU: 0 UID: 0 PID: 7596 Comm: syz.4.275 Not tainted syzkaller #0 PREEMPT(full)
[ 280.649055][ T7596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 280.649066][ T7596] Call Trace:
[ 280.649073][ T7596]
[ 280.649081][ T7596] dump_stack_lvl+0xe8/0x150
[ 280.649111][ T7596] sysfs_create_dir_ns+0x271/0x2a0
[ 280.649140][ T7596] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 280.649164][ T7596] ? do_raw_spin_unlock+0xf5/0x210
[ 280.649188][ T7596] kobject_add_internal+0x62b/0xd00
[ 280.649215][ T7596] kobject_init_and_add+0x12b/0x1a0
[ 280.649238][ T7596] ? __pfx_kobject_init_and_add+0x10/0x10
[ 280.649261][ T7596] ? __raw_spin_lock_init+0x45/0x100
[ 280.649280][ T7596] ? __init_swait_queue_head+0xa9/0x150
[ 280.649303][ T7596] gfs2_sys_fs_add+0x257/0x480
[ 280.649323][ T7596] ? is_dynamic_key+0x1ac/0x1c0
[ 280.649347][ T7596] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 280.649373][ T7596] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 280.649405][ T7596] gfs2_fill_super+0x13a7/0x21d0
[ 280.649438][ T7596] ? __pfx_gfs2_fill_super+0x10/0x10
[ 280.649461][ T7596] ? sb_set_blocksize+0x155/0x240
[ 280.649485][ T7596] ? setup_bdev_super+0x4c1/0x5b0
[ 280.649507][ T7596] get_tree_bdev_flags+0x431/0x4f0
[ 280.649534][ T7596] ? __pfx_gfs2_fill_super+0x10/0x10
[ 280.649553][ T7596] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 280.649569][ T7596] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 280.649601][ T7596] gfs2_get_tree+0x51/0x1e0
[ 280.649624][ T7596] vfs_get_tree+0x92/0x2a0
[ 280.649643][ T7596] do_new_mount+0x341/0xd30
[ 280.649664][ T7596] ? apparmor_capable+0x126/0x170
[ 280.649691][ T7596] ? __pfx_do_new_mount+0x10/0x10
[ 280.649713][ T7596] ? ns_capable+0x89/0xe0
[ 280.649744][ T7596] ? user_path_at+0xd4/0x160
[ 280.649767][ T7596] __se_sys_mount+0x31d/0x420
[ 280.649792][ T7596] ? __pfx___se_sys_mount+0x10/0x10
[ 280.649819][ T7596] ? __x64_sys_mount+0x20/0xc0
[ 280.649844][ T7596] do_syscall_64+0x14d/0xf80
[ 280.649859][ T7596] ? trace_irq_disable+0x3b/0x150
[ 280.649883][ T7596] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 280.649900][ T7596] ? clear_bhb_loop+0x40/0x90
[ 280.649921][ T7596] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 280.649939][ T7596] RIP: 0033:0x7fc53b39b5ca
[ 280.649958][ T7596] 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
[ 280.649973][ T7596] RSP: 002b:00007fc53c176e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 280.649991][ T7596] RAX: ffffffffffffffda RBX: 00007fc53c176ee0 RCX: 00007fc53b39b5ca
[ 280.650005][ T7596] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fc53c176ea0
[ 280.650017][ T7596] RBP: 000020000001f680 R08: 00007fc53c176ee0 R09: 0000000000000084
[ 280.650030][ T7596] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 280.650042][ T7596] R13: 00007fc53c176ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 280.650066][ T7596]
[ 280.650116][ T7596] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 280.829527][ T31] R13: 00007fac8d996ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 280.933703][ T7598] loop0: detected capacity change from 0 to 32768
[ 280.978728][ T7596] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 281.016743][ T7594] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 281.028333][ T7594] CPU: 0 UID: 0 PID: 7594 Comm: syz.2.274 Not tainted syzkaller #0 PREEMPT(full)
[ 281.028359][ T7594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 281.028371][ T7594] Call Trace:
[ 281.028379][ T7594]
[ 281.028388][ T7594] dump_stack_lvl+0xe8/0x150
[ 281.028420][ T7594] sysfs_create_dir_ns+0x271/0x2a0
[ 281.028448][ T7594] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 281.028475][ T7594] ? do_raw_spin_unlock+0xf5/0x210
[ 281.028500][ T7594] kobject_add_internal+0x62b/0xd00
[ 281.028529][ T7594] kobject_init_and_add+0x12b/0x1a0
[ 281.028555][ T7594] ? __pfx_kobject_init_and_add+0x10/0x10
[ 281.028577][ T7594] ? __raw_spin_lock_init+0x45/0x100
[ 281.028599][ T7594] ? __init_swait_queue_head+0xa9/0x150
[ 281.028623][ T7594] gfs2_sys_fs_add+0x257/0x480
[ 281.028642][ T7594] ? is_dynamic_key+0x1ac/0x1c0
[ 281.028665][ T7594] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 281.028694][ T7594] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 281.028727][ T7594] gfs2_fill_super+0x13a7/0x21d0
[ 281.028767][ T7594] ? __pfx_gfs2_fill_super+0x10/0x10
[ 281.028797][ T7594] ? sb_set_blocksize+0x155/0x240
[ 281.028825][ T7594] ? setup_bdev_super+0x4c1/0x5b0
[ 281.028849][ T7594] get_tree_bdev_flags+0x431/0x4f0
[ 281.028870][ T7594] ? __pfx_gfs2_fill_super+0x10/0x10
[ 281.028894][ T7594] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 281.028912][ T7594] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 281.028950][ T7594] gfs2_get_tree+0x51/0x1e0
[ 281.028978][ T7594] vfs_get_tree+0x92/0x2a0
[ 281.029000][ T7594] do_new_mount+0x341/0xd30
[ 281.029022][ T7594] ? apparmor_capable+0x126/0x170
[ 281.029052][ T7594] ? __pfx_do_new_mount+0x10/0x10
[ 281.029077][ T7594] ? ns_capable+0x89/0xe0
[ 281.029108][ T7594] ? user_path_at+0xd4/0x160
[ 281.029133][ T7594] __se_sys_mount+0x31d/0x420
[ 281.029163][ T7594] ? __pfx___se_sys_mount+0x10/0x10
[ 281.029194][ T7594] ? __x64_sys_mount+0x20/0xc0
[ 281.029220][ T7594] do_syscall_64+0x14d/0xf80
[ 281.029237][ T7594] ? trace_irq_disable+0x3b/0x150
[ 281.029262][ T7594] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 281.029288][ T7594] ? clear_bhb_loop+0x40/0x90
[ 281.029312][ T7594] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 281.029330][ T7594] RIP: 0033:0x7f9dd639b5ca
[ 281.029348][ T7594] 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
[ 281.029365][ T7594] RSP: 002b:00007f9dd72dde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 281.029385][ T7594] RAX: ffffffffffffffda RBX: 00007f9dd72ddee0 RCX: 00007f9dd639b5ca
[ 281.029400][ T7594] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f9dd72ddea0
[ 281.029413][ T7594] RBP: 000020000001f680 R08: 00007f9dd72ddee0 R09: 0000000000000084
[ 281.029426][ T7594] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 281.029439][ T7594] R13: 00007f9dd72ddea0 R14: 000000000001f790 R15: 00002000000001c0
[ 281.029470][ T7594]
[ 281.064264][ T31]
[ 281.234771][ T7594] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 281.242410][ T31]
[ 281.242410][ T31] Showing all locks held in the system:
[ 281.246670][ T7598] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 281.251076][ T7594] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 281.368990][ T7598] CPU: 1 UID: 0 PID: 7598 Comm: syz.0.277 Not tainted syzkaller #0 PREEMPT(full)
[ 281.369017][ T7598] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 281.369027][ T7598] Call Trace:
[ 281.369035][ T7598]
[ 281.369044][ T7598] dump_stack_lvl+0xe8/0x150
[ 281.369075][ T7598] sysfs_create_dir_ns+0x271/0x2a0
[ 281.369104][ T7598] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 281.369130][ T7598] ? do_raw_spin_unlock+0xf5/0x210
[ 281.369154][ T7598] kobject_add_internal+0x62b/0xd00
[ 281.369185][ T7598] kobject_init_and_add+0x12b/0x1a0
[ 281.369211][ T7598] ? __pfx_kobject_init_and_add+0x10/0x10
[ 281.369233][ T7598] ? __raw_spin_lock_init+0x45/0x100
[ 281.369254][ T7598] ? __init_swait_queue_head+0xa9/0x150
[ 281.369277][ T7598] gfs2_sys_fs_add+0x257/0x480
[ 281.369297][ T7598] ? is_dynamic_key+0x1ac/0x1c0
[ 281.369321][ T7598] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 281.369351][ T7598] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 281.369385][ T7598] gfs2_fill_super+0x13a7/0x21d0
[ 281.369424][ T7598] ? __pfx_gfs2_fill_super+0x10/0x10
[ 281.369452][ T7598] ? sb_set_blocksize+0x155/0x240
[ 281.369486][ T7598] ? setup_bdev_super+0x4c1/0x5b0
[ 281.369511][ T7598] get_tree_bdev_flags+0x431/0x4f0
[ 281.369532][ T7598] ? __pfx_gfs2_fill_super+0x10/0x10
[ 281.369557][ T7598] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 281.369576][ T7598] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 281.369614][ T7598] gfs2_get_tree+0x51/0x1e0
[ 281.369642][ T7598] vfs_get_tree+0x92/0x2a0
[ 281.369664][ T7598] do_new_mount+0x341/0xd30
[ 281.369687][ T7598] ? apparmor_capable+0x126/0x170
[ 281.369717][ T7598] ? __pfx_do_new_mount+0x10/0x10
[ 281.369742][ T7598] ? ns_capable+0x89/0xe0
[ 281.369776][ T7598] ? user_path_at+0xd4/0x160
[ 281.369806][ T7598] __se_sys_mount+0x31d/0x420
[ 281.369836][ T7598] ? __pfx___se_sys_mount+0x10/0x10
[ 281.369868][ T7598] ? __x64_sys_mount+0x20/0xc0
[ 281.369894][ T7598] do_syscall_64+0x14d/0xf80
[ 281.369912][ T7598] ? trace_irq_disable+0x3b/0x150
[ 281.369935][ T7598] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 281.369953][ T7598] ? clear_bhb_loop+0x40/0x90
[ 281.369977][ T7598] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 281.369995][ T7598] RIP: 0033:0x7f372f99b5ca
[ 281.370036][ T7598] 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
[ 281.370052][ T7598] RSP: 002b:00007f37308dae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 281.370073][ T7598] RAX: ffffffffffffffda RBX: 00007f37308daee0 RCX: 00007f372f99b5ca
[ 281.370087][ T7598] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f37308daea0
[ 281.370100][ T7598] RBP: 000020000001f680 R08: 00007f37308daee0 R09: 0000000000000084
[ 281.370115][ T7598] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 281.370127][ T7598] R13: 00007f37308daea0 R14: 000000000001f790 R15: 00002000000001c0
[ 281.370157][ T7598]
[ 281.370182][ T7598] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 281.580242][ T7600] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 281.580266][ T7600] CPU: 0 UID: 0 PID: 7600 Comm: syz.5.276 Not tainted syzkaller #0 PREEMPT(full)
[ 281.580288][ T7600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 281.580301][ T7600] Call Trace:
[ 281.580309][ T7600]
[ 281.580318][ T7600] dump_stack_lvl+0xe8/0x150
[ 281.580349][ T7600] sysfs_create_dir_ns+0x271/0x2a0
[ 281.580377][ T7600] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 281.580403][ T7600] ? do_raw_spin_unlock+0xf5/0x210
[ 281.580428][ T7600] kobject_add_internal+0x62b/0xd00
[ 281.580494][ T7600] kobject_init_and_add+0x12b/0x1a0
[ 281.580521][ T7600] ? __pfx_kobject_init_and_add+0x10/0x10
[ 281.580544][ T7600] ? __raw_spin_lock_init+0x45/0x100
[ 281.580566][ T7600] ? __init_swait_queue_head+0xa9/0x150
[ 281.580590][ T7600] gfs2_sys_fs_add+0x257/0x480
[ 281.580609][ T7600] ? is_dynamic_key+0x1ac/0x1c0
[ 281.580634][ T7600] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 281.580663][ T7600] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 281.580696][ T7600] gfs2_fill_super+0x13a7/0x21d0
[ 281.580737][ T7600] ? __pfx_gfs2_fill_super+0x10/0x10
[ 281.580767][ T7600] ? sb_set_blocksize+0x155/0x240
[ 281.580794][ T7600] ? setup_bdev_super+0x4c1/0x5b0
[ 281.580818][ T7600] get_tree_bdev_flags+0x431/0x4f0
[ 281.580837][ T7600] ? __pfx_gfs2_fill_super+0x10/0x10
[ 281.580859][ T7600] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 281.580875][ T7600] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 281.580911][ T7600] gfs2_get_tree+0x51/0x1e0
[ 281.580938][ T7600] vfs_get_tree+0x92/0x2a0
[ 281.580960][ T7600] do_new_mount+0x341/0xd30
[ 281.580981][ T7600] ? apparmor_capable+0x126/0x170
[ 281.581009][ T7600] ? __pfx_do_new_mount+0x10/0x10
[ 281.581032][ T7600] ? ns_capable+0x89/0xe0
[ 281.581065][ T7600] ? user_path_at+0xd4/0x160
[ 281.581093][ T7600] __se_sys_mount+0x31d/0x420
[ 281.581121][ T7600] ? __pfx___se_sys_mount+0x10/0x10
[ 281.581151][ T7600] ? __x64_sys_mount+0x20/0xc0
[ 281.581176][ T7600] do_syscall_64+0x14d/0xf80
[ 281.581193][ T7600] ? trace_irq_disable+0x3b/0x150
[ 281.581217][ T7600] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 281.581236][ T7600] ? clear_bhb_loop+0x40/0x90
[ 281.581258][ T7600] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 281.581276][ T7600] RIP: 0033:0x7f656819b5ca
[ 281.581294][ T7600] 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
[ 281.581309][ T7600] RSP: 002b:00007f6569010e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 281.581329][ T7600] RAX: ffffffffffffffda RBX: 00007f6569010ee0 RCX: 00007f656819b5ca
[ 281.581343][ T7600] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6569010ea0
[ 281.581357][ T7600] RBP: 000020000001f680 R08: 00007f6569010ee0 R09: 0000000000000084
[ 281.581369][ T7600] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 281.581382][ T7600] R13: 00007f6569010ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 281.581411][ T7600]
[ 281.581435][ T7600] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 281.818791][ T31] 1 lock held by pool_workqueue_/3:
[ 281.838914][ T7598] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 281.844787][ T31] 1 lock held by khungtaskd/31:
[ 282.039022][ T7600] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 282.258018][ T31] #0: ffffffff8e7602e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 282.283111][ T7606] set_capacity_and_notify: 1 callbacks suppressed
[ 282.283130][ T7606] loop3: detected capacity change from 0 to 32768
2026/02/13 13:26:45 executed programs: 272
[ 282.306754][ T31] 2 locks held by kworker/0:2/797:
[ 282.318669][ T31] #0: ffff88801e73f548 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_one_work+0x855/0x1650
[ 282.334886][ T7606] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 282.389914][ T7606] CPU: 1 UID: 0 PID: 7606 Comm: syz.3.278 Not tainted syzkaller #0 PREEMPT(full)
[ 282.389941][ T7606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 282.389954][ T7606] Call Trace:
[ 282.389962][ T7606]
[ 282.389971][ T7606] dump_stack_lvl+0xe8/0x150
[ 282.390003][ T7606] sysfs_create_dir_ns+0x271/0x2a0
[ 282.390032][ T7606] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 282.390057][ T7606] ? do_raw_spin_unlock+0xf5/0x210
[ 282.390082][ T7606] kobject_add_internal+0x62b/0xd00
[ 282.390112][ T7606] kobject_init_and_add+0x12b/0x1a0
[ 282.390139][ T7606] ? __pfx_kobject_init_and_add+0x10/0x10
[ 282.390162][ T7606] ? __raw_spin_lock_init+0x45/0x100
[ 282.390183][ T7606] ? __init_swait_queue_head+0xa9/0x150
[ 282.390207][ T7606] gfs2_sys_fs_add+0x257/0x480
[ 282.390227][ T7606] ? is_dynamic_key+0x1ac/0x1c0
[ 282.390251][ T7606] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 282.390280][ T7606] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 282.390319][ T7606] gfs2_fill_super+0x13a7/0x21d0
[ 282.390359][ T7606] ? __pfx_gfs2_fill_super+0x10/0x10
[ 282.390389][ T7606] ? sb_set_blocksize+0x155/0x240
[ 282.390416][ T7606] ? setup_bdev_super+0x4c1/0x5b0
[ 282.390440][ T7606] get_tree_bdev_flags+0x431/0x4f0
[ 282.390461][ T7606] ? __pfx_gfs2_fill_super+0x10/0x10
[ 282.390485][ T7606] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 282.390503][ T7606] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 282.390541][ T7606] gfs2_get_tree+0x51/0x1e0
[ 282.390569][ T7606] vfs_get_tree+0x92/0x2a0
[ 282.390591][ T7606] do_new_mount+0x341/0xd30
[ 282.390614][ T7606] ? apparmor_capable+0x126/0x170
[ 282.390643][ T7606] ? __pfx_do_new_mount+0x10/0x10
[ 282.390667][ T7606] ? ns_capable+0x89/0xe0
[ 282.390699][ T7606] ? user_path_at+0xd4/0x160
[ 282.390729][ T7606] __se_sys_mount+0x31d/0x420
[ 282.390760][ T7606] ? __pfx___se_sys_mount+0x10/0x10
[ 282.390789][ T7606] ? __x64_sys_mount+0x20/0xc0
[ 282.390815][ T7606] do_syscall_64+0x14d/0xf80
[ 282.390832][ T7606] ? trace_irq_disable+0x3b/0x150
[ 282.390857][ T7606] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 282.390877][ T7606] ? clear_bhb_loop+0x40/0x90
[ 282.390900][ T7606] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 282.390919][ T7606] RIP: 0033:0x7f162ad9b5ca
[ 282.390938][ T7606] 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
[ 282.390954][ T7606] RSP: 002b:00007f162bc96e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 282.390975][ T7606] RAX: ffffffffffffffda RBX: 00007f162bc96ee0 RCX: 00007f162ad9b5ca
[ 282.390990][ T7606] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f162bc96ea0
[ 282.391004][ T7606] RBP: 000020000001f680 R08: 00007f162bc96ee0 R09: 0000000000000084
[ 282.391016][ T7606] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 282.391029][ T7606] R13: 00007f162bc96ea0 R14: 000000000001f790 R15: 00002000000001c0
[ 282.391059][ T7606]
[ 282.391083][ T7606] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 282.722283][ T31] #1: ffffc90003da7c40 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x87c/0x1650
[ 282.749924][ T31] 2 locks held by getty/5579:
[ 282.755351][ T31] #0: ffff888036f820a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 282.765262][ T7606] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 282.798065][ T31] #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0
[ 282.854336][ T31] 3 locks held by udevd/6147:
[ 282.871781][ T31] #0: ffff8880b863ade0 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x31/0x150
[ 282.978673][ T31] #1: ffff8880b8624588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
[ 283.008682][ T31] #2: ffff8880b8624588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
[ 283.017738][ T31] 1 lock held by syz-executor/6256:
[ 283.053637][ T31] 1 lock held by syz.1.18/6445:
[ 283.068711][ T31] #0: ffff8880297040e0 (&type->s_umount_key#54/1){+.+.}-{4:4}, at: alloc_super+0x28c/0xab0
[ 283.118704][ T31] 3 locks held by syz.2.279/7616:
[ 283.148724][ T31] 1 lock held by syz.5.280/7618:
[ 283.154041][ T31] 2 locks held by syz.4.282/7620:
[ 283.188930][ T31] 3 locks held by syz.0.281/7622:
[ 283.204319][ T31] 2 locks held by syz.3.283/7624:
[ 283.218895][ T31]
[ 283.226473][ T31] =============================================
[ 283.226473][ T31]
[ 283.319276][ T31] NMI backtrace for cpu 0
[ 283.319295][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 283.319316][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 283.319328][ T31] Call Trace:
[ 283.319336][ T31]
[ 283.319345][ T31] dump_stack_lvl+0xe8/0x150
[ 283.319373][ T31] nmi_cpu_backtrace+0x274/0x2d0
[ 283.319396][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 283.319422][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300
[ 283.319446][ T31] sys_info+0x135/0x170
[ 283.319466][ T31] watchdog+0xfd9/0x1030
[ 283.319497][ T31] ? watchdog+0x21a/0x1030
[ 283.319529][ T31] kthread+0x388/0x470
[ 283.319547][ T31] ? __pfx_watchdog+0x10/0x10
[ 283.319567][ T31] ? __pfx_kthread+0x10/0x10
[ 283.319585][ T31] ret_from_fork+0x51e/0xb90
[ 283.319609][ T31] ? __pfx_ret_from_fork+0x10/0x10
[ 283.319632][ T31] ? __switch_to+0xc7d/0x1450
[ 283.319655][ T31] ? __pfx_kthread+0x10/0x10
[ 283.319675][ T31] ret_from_fork_asm+0x1a/0x30
[ 283.319713][ T31]
[ 283.319721][ T31] Sending NMI from CPU 0 to CPUs 1:
[ 283.434052][ C1] NMI backtrace for cpu 1
[ 283.434072][ C1] CPU: 1 UID: 0 PID: 295 Comm: kworker/u8:6 Not tainted syzkaller #0 PREEMPT(full)
[ 283.434092][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 283.434104][ C1] Workqueue: events_unbound nsim_dev_trap_report_work
[ 283.434130][ C1] RIP: 0010:__lock_acquire+0x3c4/0x2cf0
[ 283.434155][ C1] Code: 4e 73 0e 48 c7 c6 8d ea 00 8e 67 48 0f b9 3a 90 31 c0 0f b6 98 c4 00 00 00 41 8b 45 20 25 ff 1f 00 00 48 0f a3 05 bc 10 82 12 <73> 17 48 69 c0 c8 00 00 00 48 8d 88 10 a4 c4 93 84 db 75 3f e9 10
[ 283.434170][ C1] RSP: 0000:ffffc900031b7358 EFLAGS: 00000003
[ 283.434184][ C1] RAX: 0000000000000007 RBX: 0000000000000003 RCX: 0000000000000007
[ 283.434196][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 283.434207][ C1] RBP: 0000000000000004 R08: ffffffff81768a45 R09: ffffffff8e7602e0
[ 283.434219][ C1] R10: ffffc900031b7638 R11: ffffffff81b0c580 R12: 0000000000000007
[ 283.434231][ C1] R13: ffff888020f74838 R14: ffff888020f73c80 R15: ffff888020f74798
[ 283.434245][ C1] FS: 0000000000000000(0000) GS:ffff888125563000(0000) knlGS:0000000000000000
[ 283.434259][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 283.434271][ C1] CR2: 00007f1622331000 CR3: 0000000075378000 CR4: 00000000003526f0
[ 283.434287][ C1] Call Trace:
[ 283.434299][ C1]
[ 283.434309][ C1] ? __lock_acquire+0x6b5/0x2cf0
[ 283.434337][ C1] ? unwind_next_frame+0xa5/0x23c0
[ 283.434364][ C1] lock_acquire+0xf0/0x2e0
[ 283.434384][ C1] ? unwind_next_frame+0xa5/0x23c0
[ 283.434409][ C1] ? unwind_next_frame+0xa5/0x23c0
[ 283.434432][ C1] ? ret_from_fork_asm+0x1a/0x30
[ 283.434457][ C1] ? unwind_next_frame+0xa5/0x23c0
[ 283.434480][ C1] unwind_next_frame+0xc2/0x23c0
[ 283.434504][ C1] ? unwind_next_frame+0xa5/0x23c0
[ 283.434530][ C1] ? unwind_next_frame+0xa5/0x23c0
[ 283.434554][ C1] ? ret_from_fork+0x51e/0xb90
[ 283.434575][ C1] ? ret_from_fork_asm+0x1a/0x30
[ 283.434600][ C1] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 283.434618][ C1] arch_stack_walk+0x11b/0x150
[ 283.434645][ C1] ? ret_from_fork_asm+0x1a/0x30
[ 283.434671][ C1] stack_trace_save+0xa9/0x100
[ 283.434687][ C1] ? __pfx_stack_trace_save+0x10/0x10
[ 283.434704][ C1] ? stack_depot_save_flags+0x33/0x810
[ 283.434723][ C1] ? stack_trace_save+0x91/0x100
[ 283.434740][ C1] kasan_save_track+0x3e/0x80
[ 283.434757][ C1] ? kasan_save_track+0x3e/0x80
[ 283.434771][ C1] ? __kasan_kmalloc+0x93/0xb0
[ 283.434788][ C1] ? __kmalloc_node_track_caller_noprof+0x4db/0x7b0
[ 283.434806][ C1] ? __alloc_skb+0x2c1/0x7d0
[ 283.434826][ C1] ? nsim_dev_trap_report_work+0x29a/0xb80
[ 283.434848][ C1] ? process_one_work+0x949/0x1650
[ 283.434868][ C1] ? worker_thread+0xb46/0x1140
[ 283.434888][ C1] ? kthread+0x388/0x470
[ 283.434903][ C1] ? ret_from_fork+0x51e/0xb90
[ 283.434923][ C1] ? ret_from_fork_asm+0x1a/0x30
[ 283.434970][ C1] __kasan_kmalloc+0x93/0xb0
[ 283.434988][ C1] __kmalloc_node_track_caller_noprof+0x4db/0x7b0
[ 283.435007][ C1] ? nsim_dev_trap_report_work+0x29a/0xb80
[ 283.435024][ C1] ? __kmalloc_node_track_caller_noprof+0x34a/0x7b0
[ 283.435043][ C1] __alloc_skb+0x2c1/0x7d0
[ 283.435065][ C1] nsim_dev_trap_report_work+0x29a/0xb80
[ 283.435090][ C1] ? process_one_work+0x87c/0x1650
[ 283.435110][ C1] process_one_work+0x949/0x1650
[ 283.435138][ C1] ? __pfx_process_one_work+0x10/0x10
[ 283.435158][ C1] ? move_linked_works+0x238/0x250
[ 283.435184][ C1] worker_thread+0xb46/0x1140
[ 283.435214][ C1] kthread+0x388/0x470
[ 283.435229][ C1] ? __pfx_worker_thread+0x10/0x10
[ 283.435249][ C1] ? __pfx_kthread+0x10/0x10
[ 283.435265][ C1] ret_from_fork+0x51e/0xb90
[ 283.435287][ C1] ? __pfx_ret_from_fork+0x10/0x10
[ 283.435307][ C1] ? __switch_to+0xc7d/0x1450
[ 283.435327][ C1] ? __pfx_kthread+0x10/0x10
[ 283.435343][ C1] ret_from_fork_asm+0x1a/0x30
[ 283.435373][ C1]
[ 283.984524][ T31] Kernel panic - not syncing: hung_task: blocked tasks
[ 283.991442][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 284.000575][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 284.010650][ T31] Call Trace:
[ 284.014124][ T31]
[ 284.017089][ T31] vpanic+0x56c/0xa60
[ 284.021094][ T31] ? __pfx___schedule+0x10/0x10
[ 284.026230][ T31] ? __pfx_vpanic+0x10/0x10
[ 284.030876][ T31] ? __pfx_console_unlock+0x10/0x10
[ 284.036126][ T31] panic+0xc5/0xd0
[ 284.039968][ T31] ? __pfx_panic+0x10/0x10
[ 284.044415][ T31] ? preempt_schedule_thunk+0x16/0x30
[ 284.049905][ T31] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[ 284.056182][ T31] watchdog+0x1023/0x1030
[ 284.060546][ T31] ? watchdog+0x21a/0x1030
[ 284.065225][ T31] kthread+0x388/0x470
[ 284.069399][ T31] ? __pfx_watchdog+0x10/0x10
[ 284.074276][ T31] ? __pfx_kthread+0x10/0x10
[ 284.078886][ T31] ret_from_fork+0x51e/0xb90
[ 284.083805][ T31] ? __pfx_ret_from_fork+0x10/0x10
[ 284.089111][ T31] ? __switch_to+0xc7d/0x1450
[ 284.093808][ T31] ? __pfx_kthread+0x10/0x10
[ 284.098502][ T31] ret_from_fork_asm+0x1a/0x30
[ 284.103303][ T31]
[ 284.106775][ T31] Kernel Offset: disabled
[ 284.111100][ T31] Rebooting in 86400 seconds..