ect_init_and_add+0x125/0x190
[  247.656564][ T7210]  ? __pfx_kobject_init_and_add+0x10/0x10
[  247.656579][ T7210]  ? __raw_spin_lock_init+0x45/0x100
[  247.656593][ T7210]  ? __init_swait_queue_head+0xa9/0x150
[  247.656609][ T7210]  gfs2_sys_fs_add+0x234/0x450
[  247.656625][ T7210]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  247.656643][ T7210]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  247.656664][ T7210]  gfs2_fill_super+0x1388/0x21b0
[  247.656684][ T7210]  ? __pfx_gfs2_fill_super+0x10/0x10
[  247.656698][ T7210]  ? sb_set_blocksize+0x155/0x240
[  247.656713][ T7210]  ? setup_bdev_super+0x4c1/0x5b0
[  247.656726][ T7210]  get_tree_bdev_flags+0x40e/0x4d0
[  247.656737][ T7210]  ? __pfx_gfs2_fill_super+0x10/0x10
[  247.656752][ T7210]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  247.656761][ T7210]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  247.656782][ T7210]  gfs2_get_tree+0x51/0x1e0
[  247.656795][ T7210]  vfs_get_tree+0x92/0x2a0
[  247.656807][ T7210]  do_new_mount+0x302/0xa10
[  247.656819][ T7210]  ? apparmor_capable+0x137/0x1a0
[  247.656833][ T7210]  ? __pfx_do_new_mount+0x10/0x10
[  247.656845][ T7210]  ? ns_capable+0x8a/0xf0
[  247.656857][ T7210]  ? kmem_cache_free+0x197/0x620
[  247.656874][ T7210]  __se_sys_mount+0x313/0x410
[  247.656890][ T7210]  ? __pfx___se_sys_mount+0x10/0x10
[  247.656905][ T7210]  ? do_syscall_64+0xbe/0xf80
[  247.656918][ T7210]  ? __x64_sys_mount+0x20/0xc0
[  247.656932][ T7210]  do_syscall_64+0xfa/0xf80
[  247.656945][ T7210]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  247.656955][ T7210]  ? clear_bhb_loop+0x60/0xb0
[  247.656967][ T7210]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  247.656976][ T7210] RIP: 0033:0x7fe31c99038a
[  247.656987][ T7210] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  247.656995][ T7210] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  247.657007][ T7210] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  247.657014][ T7210] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  247.657021][ T7210] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  247.657027][ T7210] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  247.657033][ T7210] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  247.657049][ T7210]  </TASK>
[  247.657064][ T7210] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  247.975590][ T7210] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  248.311672][ T7214] loop1: detected capacity change from 0 to 32768
[  248.328720][ T7214] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  248.338727][ T7214] CPU: 0 UID: 0 PID: 7214 Comm: syz.1.156 Not tainted syzkaller #0 PREEMPT(full) 
[  248.338751][ T7214] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  248.338762][ T7214] Call Trace:
[  248.338774][ T7214]  <TASK>
[  248.338781][ T7214]  dump_stack_lvl+0x189/0x250
[  248.338810][ T7214]  ? __pfx_dump_stack_lvl+0x10/0x10
[  248.338831][ T7214]  ? __pfx__printk+0x10/0x10
[  248.338860][ T7214]  ? kernfs_path_from_node+0x250/0x290
[  248.338879][ T7214]  ? kernfs_path_from_node+0x2f/0x290
[  248.338901][ T7214]  sysfs_create_dir_ns+0x259/0x280
[  248.338924][ T7214]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  248.338946][ T7214]  ? do_raw_spin_unlock+0x122/0x240
[  248.338971][ T7214]  kobject_add_internal+0x6ab/0xcc0
[  248.338997][ T7214]  kobject_init_and_add+0x125/0x190
[  248.339029][ T7214]  ? __pfx_kobject_init_and_add+0x10/0x10
[  248.339056][ T7214]  ? __raw_spin_lock_init+0x45/0x100
[  248.339081][ T7214]  ? __init_swait_queue_head+0xa9/0x150
[  248.339109][ T7214]  gfs2_sys_fs_add+0x234/0x450
[  248.339135][ T7214]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  248.339166][ T7214]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  248.339203][ T7214]  gfs2_fill_super+0x1388/0x21b0
[  248.339238][ T7214]  ? __pfx_gfs2_fill_super+0x10/0x10
[  248.339260][ T7214]  ? sb_set_blocksize+0x155/0x240
[  248.339285][ T7214]  ? setup_bdev_super+0x4c1/0x5b0
[  248.339308][ T7214]  get_tree_bdev_flags+0x40e/0x4d0
[  248.339327][ T7214]  ? __pfx_gfs2_fill_super+0x10/0x10
[  248.339346][ T7214]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  248.339362][ T7214]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  248.339398][ T7214]  gfs2_get_tree+0x51/0x1e0
[  248.339420][ T7214]  vfs_get_tree+0x92/0x2a0
[  248.339441][ T7214]  do_new_mount+0x302/0xa10
[  248.339462][ T7214]  ? apparmor_capable+0x137/0x1a0
[  248.339486][ T7214]  ? __pfx_do_new_mount+0x10/0x10
[  248.339507][ T7214]  ? ns_capable+0x8a/0xf0
[  248.339526][ T7214]  ? kmem_cache_free+0x197/0x620
[  248.339556][ T7214]  __se_sys_mount+0x313/0x410
[  248.339586][ T7214]  ? __pfx___se_sys_mount+0x10/0x10
[  248.339613][ T7214]  ? do_syscall_64+0xbe/0xf80
[  248.339644][ T7214]  ? __x64_sys_mount+0x20/0xc0
[  248.339669][ T7214]  do_syscall_64+0xfa/0xf80
[  248.339691][ T7214]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  248.339709][ T7214]  ? clear_bhb_loop+0x60/0xb0
[  248.339730][ T7214]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  248.339747][ T7214] RIP: 0033:0x7fe31c99038a
[  248.339764][ T7214] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  248.339778][ T7214] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  248.339797][ T7214] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  248.339810][ T7214] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  248.339822][ T7214] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  248.339833][ T7214] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  248.339843][ T7214] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  248.339873][ T7214]  </TASK>
[  248.648992][ T7214] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  248.663967][ T7214] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  249.021289][ T7218] loop1: detected capacity change from 0 to 32768
[  249.059716][ T7218] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  249.067171][ T7218] CPU: 1 UID: 0 PID: 7218 Comm: syz.1.157 Not tainted syzkaller #0 PREEMPT(full) 
[  249.067192][ T7218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  249.067201][ T7218] Call Trace:
[  249.067211][ T7218]  <TASK>
[  249.067219][ T7218]  dump_stack_lvl+0x189/0x250
[  249.067245][ T7218]  ? __pfx_dump_stack_lvl+0x10/0x10
[  249.067262][ T7218]  ? __pfx__printk+0x10/0x10
[  249.067287][ T7218]  ? kernfs_path_from_node+0x250/0x290
[  249.067304][ T7218]  ? kernfs_path_from_node+0x2f/0x290
[  249.067325][ T7218]  sysfs_create_dir_ns+0x259/0x280
[  249.067344][ T7218]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  249.067361][ T7218]  ? do_raw_spin_unlock+0x122/0x240
[  249.067386][ T7218]  kobject_add_internal+0x6ab/0xcc0
[  249.067409][ T7218]  kobject_init_and_add+0x125/0x190
[  249.067436][ T7218]  ? __pfx_kobject_init_and_add+0x10/0x10
[  249.067458][ T7218]  ? __raw_spin_lock_init+0x45/0x100
[  249.067479][ T7218]  ? __init_swait_queue_head+0xa9/0x150
[  249.067504][ T7218]  gfs2_sys_fs_add+0x234/0x450
[  249.067529][ T7218]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  249.067569][ T7218]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  249.067602][ T7218]  gfs2_fill_super+0x1388/0x21b0
[  249.067633][ T7218]  ? __pfx_gfs2_fill_super+0x10/0x10
[  249.067655][ T7218]  ? sb_set_blocksize+0x155/0x240
[  249.067680][ T7218]  ? setup_bdev_super+0x4c1/0x5b0
[  249.067703][ T7218]  get_tree_bdev_flags+0x40e/0x4d0
[  249.067723][ T7218]  ? __pfx_gfs2_fill_super+0x10/0x10
[  249.067742][ T7218]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  249.067758][ T7218]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  249.067791][ T7218]  gfs2_get_tree+0x51/0x1e0
[  249.067813][ T7218]  vfs_get_tree+0x92/0x2a0
[  249.067832][ T7218]  do_new_mount+0x302/0xa10
[  249.067852][ T7218]  ? apparmor_capable+0x137/0x1a0
[  249.067876][ T7218]  ? __pfx_do_new_mount+0x10/0x10
[  249.067896][ T7218]  ? ns_capable+0x8a/0xf0
[  249.067917][ T7218]  ? kmem_cache_free+0x197/0x620
[  249.067947][ T7218]  __se_sys_mount+0x313/0x410
[  249.067982][ T7218]  ? __pfx___se_sys_mount+0x10/0x10
[  249.068007][ T7218]  ? do_syscall_64+0xbe/0xf80
[  249.068028][ T7218]  ? __x64_sys_mount+0x20/0xc0
[  249.068052][ T7218]  do_syscall_64+0xfa/0xf80
[  249.068076][ T7218]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  249.068094][ T7218]  ? clear_bhb_loop+0x60/0xb0
[  249.068117][ T7218]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  249.068134][ T7218] RIP: 0033:0x7fe31c99038a
[  249.068151][ T7218] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  249.068164][ T7218] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  249.068182][ T7218] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  249.068195][ T7218] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  249.068207][ T7218] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  249.068218][ T7218] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  249.068229][ T7218] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  249.068259][ T7218]  </TASK>
[  249.068297][ T7218] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  249.390157][ T7218] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  249.725794][ T7222] loop1: detected capacity change from 0 to 32768
[  249.738652][ T7222] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  249.746134][ T7222] CPU: 1 UID: 0 PID: 7222 Comm: syz.1.158 Not tainted syzkaller #0 PREEMPT(full) 
[  249.746153][ T7222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  249.746162][ T7222] Call Trace:
[  249.746170][ T7222]  <TASK>
[  249.746177][ T7222]  dump_stack_lvl+0x189/0x250
[  249.746203][ T7222]  ? __pfx_dump_stack_lvl+0x10/0x10
[  249.746222][ T7222]  ? __pfx__printk+0x10/0x10
[  249.746253][ T7222]  ? kernfs_path_from_node+0x250/0x290
[  249.746270][ T7222]  ? kernfs_path_from_node+0x2f/0x290
[  249.746294][ T7222]  sysfs_create_dir_ns+0x259/0x280
[  249.746318][ T7222]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  249.746341][ T7222]  ? do_raw_spin_unlock+0x122/0x240
[  249.746370][ T7222]  kobject_add_internal+0x6ab/0xcc0
[  249.746396][ T7222]  kobject_init_and_add+0x125/0x190
[  249.746427][ T7222]  ? __pfx_kobject_init_and_add+0x10/0x10
[  249.746454][ T7222]  ? __raw_spin_lock_init+0x45/0x100
[  249.746486][ T7222]  ? __init_swait_queue_head+0xa9/0x150
[  249.746513][ T7222]  gfs2_sys_fs_add+0x234/0x450
[  249.746540][ T7222]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  249.746572][ T7222]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  249.746610][ T7222]  gfs2_fill_super+0x1388/0x21b0
[  249.746646][ T7222]  ? __pfx_gfs2_fill_super+0x10/0x10
[  249.746670][ T7222]  ? sb_set_blocksize+0x155/0x240
[  249.746696][ T7222]  ? setup_bdev_super+0x4c1/0x5b0
[  249.746718][ T7222]  get_tree_bdev_flags+0x40e/0x4d0
[  249.746737][ T7222]  ? __pfx_gfs2_fill_super+0x10/0x10
[  249.746755][ T7222]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  249.746770][ T7222]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  249.746803][ T7222]  gfs2_get_tree+0x51/0x1e0
[  249.746823][ T7222]  vfs_get_tree+0x92/0x2a0
[  249.746841][ T7222]  do_new_mount+0x302/0xa10
[  249.746863][ T7222]  ? apparmor_capable+0x137/0x1a0
[  249.746887][ T7222]  ? __pfx_do_new_mount+0x10/0x10
[  249.746909][ T7222]  ? ns_capable+0x8a/0xf0
[  249.746931][ T7222]  ? kmem_cache_free+0x197/0x620
[  249.746961][ T7222]  __se_sys_mount+0x313/0x410
[  249.746990][ T7222]  ? __pfx___se_sys_mount+0x10/0x10
[  249.747017][ T7222]  ? do_syscall_64+0xbe/0xf80
[  249.747038][ T7222]  ? __x64_sys_mount+0x20/0xc0
[  249.747063][ T7222]  do_syscall_64+0xfa/0xf80
[  249.747086][ T7222]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  249.747103][ T7222]  ? clear_bhb_loop+0x60/0xb0
[  249.747125][ T7222]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  249.747142][ T7222] RIP: 0033:0x7fe31c99038a
[  249.747160][ T7222] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  249.747173][ T7222] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  249.747191][ T7222] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  249.747203][ T7222] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  249.747215][ T7222] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  249.747227][ T7222] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  249.747238][ T7222] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  249.747268][ T7222]  </TASK>
[  249.747293][ T7222] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  250.065486][ T7222] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  250.410121][ T7226] loop1: detected capacity change from 0 to 32768
[  250.434745][ T7226] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  250.445936][ T7226] CPU: 0 UID: 0 PID: 7226 Comm: syz.1.159 Not tainted syzkaller #0 PREEMPT(full) 
[  250.445959][ T7226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  250.445970][ T7226] Call Trace:
[  250.445977][ T7226]  <TASK>
[  250.445985][ T7226]  dump_stack_lvl+0x189/0x250
[  250.446013][ T7226]  ? __pfx_dump_stack_lvl+0x10/0x10
[  250.446034][ T7226]  ? __pfx__printk+0x10/0x10
[  250.446064][ T7226]  ? kernfs_path_from_node+0x250/0x290
[  250.446082][ T7226]  ? kernfs_path_from_node+0x2f/0x290
[  250.446104][ T7226]  sysfs_create_dir_ns+0x259/0x280
[  250.446126][ T7226]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  250.446144][ T7226]  ? do_raw_spin_unlock+0x122/0x240
[  250.446162][ T7226]  kobject_add_internal+0x6ab/0xcc0
[  250.446178][ T7226]  kobject_init_and_add+0x125/0x190
[  250.446196][ T7226]  ? __pfx_kobject_init_and_add+0x10/0x10
[  250.446211][ T7226]  ? __raw_spin_lock_init+0x45/0x100
[  250.446226][ T7226]  ? __init_swait_queue_head+0xa9/0x150
[  250.446242][ T7226]  gfs2_sys_fs_add+0x234/0x450
[  250.446258][ T7226]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  250.446276][ T7226]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  250.446297][ T7226]  gfs2_fill_super+0x1388/0x21b0
[  250.446317][ T7226]  ? __pfx_gfs2_fill_super+0x10/0x10
[  250.446330][ T7226]  ? sb_set_blocksize+0x155/0x240
[  250.446346][ T7226]  ? setup_bdev_super+0x4c1/0x5b0
[  250.446359][ T7226]  get_tree_bdev_flags+0x40e/0x4d0
[  250.446369][ T7226]  ? __pfx_gfs2_fill_super+0x10/0x10
[  250.446380][ T7226]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  250.446389][ T7226]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  250.446410][ T7226]  gfs2_get_tree+0x51/0x1e0
[  250.446423][ T7226]  vfs_get_tree+0x92/0x2a0
[  250.446435][ T7226]  do_new_mount+0x302/0xa10
[  250.446447][ T7226]  ? apparmor_capable+0x137/0x1a0
[  250.446461][ T7226]  ? __pfx_do_new_mount+0x10/0x10
[  250.446476][ T7226]  ? ns_capable+0x8a/0xf0
[  250.446489][ T7226]  ? kmem_cache_free+0x197/0x620
[  250.446505][ T7226]  __se_sys_mount+0x313/0x410
[  250.446522][ T7226]  ? __pfx___se_sys_mount+0x10/0x10
[  250.446537][ T7226]  ? do_syscall_64+0xbe/0xf80
[  250.446549][ T7226]  ? __x64_sys_mount+0x20/0xc0
[  250.446563][ T7226]  do_syscall_64+0xfa/0xf80
[  250.446577][ T7226]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  250.446587][ T7226]  ? clear_bhb_loop+0x60/0xb0
[  250.446599][ T7226]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  250.446608][ T7226] RIP: 0033:0x7fe31c99038a
[  250.446619][ T7226] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  250.446627][ T7226] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  250.446639][ T7226] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  250.446646][ T7226] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  250.446653][ T7226] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  250.446659][ T7226] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  250.446666][ T7226] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  250.446682][ T7226]  </TASK>
[  250.447080][ T7226] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  250.765500][ T7226] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  251.137003][ T7230] loop1: detected capacity change from 0 to 32768
[  251.172363][ T7230] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  251.180463][ T7230] CPU: 0 UID: 0 PID: 7230 Comm: syz.1.160 Not tainted syzkaller #0 PREEMPT(full) 
[  251.180484][ T7230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  251.180494][ T7230] Call Trace:
[  251.180501][ T7230]  <TASK>
[  251.180509][ T7230]  dump_stack_lvl+0x189/0x250
[  251.180540][ T7230]  ? __pfx_dump_stack_lvl+0x10/0x10
[  251.180560][ T7230]  ? __pfx__printk+0x10/0x10
[  251.180589][ T7230]  ? kernfs_path_from_node+0x250/0x290
[  251.180606][ T7230]  ? kernfs_path_from_node+0x2f/0x290
[  251.180628][ T7230]  sysfs_create_dir_ns+0x259/0x280
[  251.180650][ T7230]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  251.180670][ T7230]  ? do_raw_spin_unlock+0x122/0x240
[  251.180698][ T7230]  kobject_add_internal+0x6ab/0xcc0
[  251.180721][ T7230]  kobject_init_and_add+0x125/0x190
[  251.180752][ T7230]  ? __pfx_kobject_init_and_add+0x10/0x10
[  251.180779][ T7230]  ? __raw_spin_lock_init+0x45/0x100
[  251.180803][ T7230]  ? __init_swait_queue_head+0xa9/0x150
[  251.180827][ T7230]  gfs2_sys_fs_add+0x234/0x450
[  251.180852][ T7230]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  251.180885][ T7230]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  251.180924][ T7230]  gfs2_fill_super+0x1388/0x21b0
[  251.180959][ T7230]  ? __pfx_gfs2_fill_super+0x10/0x10
[  251.180981][ T7230]  ? sb_set_blocksize+0x155/0x240
[  251.181006][ T7230]  ? setup_bdev_super+0x4c1/0x5b0
[  251.181029][ T7230]  get_tree_bdev_flags+0x40e/0x4d0
[  251.181048][ T7230]  ? __pfx_gfs2_fill_super+0x10/0x10
[  251.181066][ T7230]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  251.181083][ T7230]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  251.181119][ T7230]  gfs2_get_tree+0x51/0x1e0
[  251.181142][ T7230]  vfs_get_tree+0x92/0x2a0
[  251.181164][ T7230]  do_new_mount+0x302/0xa10
[  251.181184][ T7230]  ? apparmor_capable+0x137/0x1a0
[  251.181208][ T7230]  ? __pfx_do_new_mount+0x10/0x10
[  251.181229][ T7230]  ? ns_capable+0x8a/0xf0
[  251.181250][ T7230]  ? kmem_cache_free+0x197/0x620
[  251.181354][ T7230]  __se_sys_mount+0x313/0x410
[  251.181385][ T7230]  ? __pfx___se_sys_mount+0x10/0x10
[  251.181412][ T7230]  ? do_syscall_64+0xbe/0xf80
[  251.181433][ T7230]  ? __x64_sys_mount+0x20/0xc0
[  251.181454][ T7230]  do_syscall_64+0xfa/0xf80
[  251.181476][ T7230]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.181493][ T7230]  ? clear_bhb_loop+0x60/0xb0
[  251.181513][ T7230]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.181529][ T7230] RIP: 0033:0x7fe31c99038a
[  251.181546][ T7230] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  251.181559][ T7230] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  251.181595][ T7230] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  251.181606][ T7230] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  251.181618][ T7230] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  251.181629][ T7230] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  251.181641][ T7230] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  251.181672][ T7230]  </TASK>
[  251.181709][ T7230] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  251.501866][ T7230] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/03 19:54:03 executed programs: 146
[  251.844779][ T7234] loop1: detected capacity change from 0 to 32768
[  251.867497][ T7234] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  251.877530][ T7234] CPU: 0 UID: 0 PID: 7234 Comm: syz.1.161 Not tainted syzkaller #0 PREEMPT(full) 
[  251.877555][ T7234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  251.877566][ T7234] Call Trace:
[  251.877573][ T7234]  <TASK>
[  251.877580][ T7234]  dump_stack_lvl+0x189/0x250
[  251.877611][ T7234]  ? __pfx_dump_stack_lvl+0x10/0x10
[  251.877632][ T7234]  ? __pfx__printk+0x10/0x10
[  251.877663][ T7234]  ? kernfs_path_from_node+0x250/0x290
[  251.877682][ T7234]  ? kernfs_path_from_node+0x2f/0x290
[  251.877705][ T7234]  sysfs_create_dir_ns+0x259/0x280
[  251.877735][ T7234]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  251.877757][ T7234]  ? do_raw_spin_unlock+0x122/0x240
[  251.877787][ T7234]  kobject_add_internal+0x6ab/0xcc0
[  251.877813][ T7234]  kobject_init_and_add+0x125/0x190
[  251.877844][ T7234]  ? __pfx_kobject_init_and_add+0x10/0x10
[  251.877871][ T7234]  ? __raw_spin_lock_init+0x45/0x100
[  251.877896][ T7234]  ? __init_swait_queue_head+0xa9/0x150
[  251.877924][ T7234]  gfs2_sys_fs_add+0x234/0x450
[  251.877951][ T7234]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  251.877983][ T7234]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  251.878021][ T7234]  gfs2_fill_super+0x1388/0x21b0
[  251.878057][ T7234]  ? __pfx_gfs2_fill_super+0x10/0x10
[  251.878081][ T7234]  ? sb_set_blocksize+0x155/0x240
[  251.878107][ T7234]  ? setup_bdev_super+0x4c1/0x5b0
[  251.878130][ T7234]  get_tree_bdev_flags+0x40e/0x4d0
[  251.878149][ T7234]  ? __pfx_gfs2_fill_super+0x10/0x10
[  251.878168][ T7234]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  251.878185][ T7234]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  251.878222][ T7234]  gfs2_get_tree+0x51/0x1e0
[  251.878245][ T7234]  vfs_get_tree+0x92/0x2a0
[  251.878273][ T7234]  do_new_mount+0x302/0xa10
[  251.878293][ T7234]  ? apparmor_capable+0x137/0x1a0
[  251.878316][ T7234]  ? __pfx_do_new_mount+0x10/0x10
[  251.878337][ T7234]  ? ns_capable+0x8a/0xf0
[  251.878358][ T7234]  ? kmem_cache_free+0x197/0x620
[  251.878388][ T7234]  __se_sys_mount+0x313/0x410
[  251.878415][ T7234]  ? __pfx___se_sys_mount+0x10/0x10
[  251.878441][ T7234]  ? do_syscall_64+0xbe/0xf80
[  251.878462][ T7234]  ? __x64_sys_mount+0x20/0xc0
[  251.878486][ T7234]  do_syscall_64+0xfa/0xf80
[  251.878508][ T7234]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.878526][ T7234]  ? clear_bhb_loop+0x60/0xb0
[  251.878548][ T7234]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.878565][ T7234] RIP: 0033:0x7fe31c99038a
[  251.878582][ T7234] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  251.878596][ T7234] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  251.878615][ T7234] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  251.878628][ T7234] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  251.878640][ T7234] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  251.878652][ T7234] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  251.878663][ T7234] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  251.878693][ T7234]  </TASK>
[  251.878720][ T7234] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  252.196644][ T7234] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  252.549409][ T7238] loop1: detected capacity change from 0 to 32768
[  252.589039][ T7238] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  252.596546][ T7238] CPU: 1 UID: 0 PID: 7238 Comm: syz.1.162 Not tainted syzkaller #0 PREEMPT(full) 
[  252.596572][ T7238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  252.596583][ T7238] Call Trace:
[  252.596591][ T7238]  <TASK>
[  252.596599][ T7238]  dump_stack_lvl+0x189/0x250
[  252.596629][ T7238]  ? __pfx_dump_stack_lvl+0x10/0x10
[  252.596650][ T7238]  ? __pfx__printk+0x10/0x10
[  252.596681][ T7238]  ? kernfs_path_from_node+0x250/0x290
[  252.596701][ T7238]  ? kernfs_path_from_node+0x2f/0x290
[  252.596724][ T7238]  sysfs_create_dir_ns+0x259/0x280
[  252.596748][ T7238]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  252.596770][ T7238]  ? do_raw_spin_unlock+0x122/0x240
[  252.596799][ T7238]  kobject_add_internal+0x6ab/0xcc0
[  252.596826][ T7238]  kobject_init_and_add+0x125/0x190
[  252.596858][ T7238]  ? __pfx_kobject_init_and_add+0x10/0x10
[  252.596885][ T7238]  ? __raw_spin_lock_init+0x45/0x100
[  252.596910][ T7238]  ? __init_swait_queue_head+0xa9/0x150
[  252.596937][ T7238]  gfs2_sys_fs_add+0x234/0x450
[  252.596964][ T7238]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  252.596997][ T7238]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  252.597034][ T7238]  gfs2_fill_super+0x1388/0x21b0
[  252.597070][ T7238]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.597095][ T7238]  ? sb_set_blocksize+0x155/0x240
[  252.597121][ T7238]  ? setup_bdev_super+0x4c1/0x5b0
[  252.597144][ T7238]  get_tree_bdev_flags+0x40e/0x4d0
[  252.597162][ T7238]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.597181][ T7238]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  252.597198][ T7238]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  252.597235][ T7238]  gfs2_get_tree+0x51/0x1e0
[  252.597258][ T7238]  vfs_get_tree+0x92/0x2a0
[  252.597280][ T7238]  do_new_mount+0x302/0xa10
[  252.597301][ T7238]  ? apparmor_capable+0x137/0x1a0
[  252.597325][ T7238]  ? __pfx_do_new_mount+0x10/0x10
[  252.597347][ T7238]  ? ns_capable+0x8a/0xf0
[  252.597368][ T7238]  ? kmem_cache_free+0x197/0x620
[  252.597399][ T7238]  __se_sys_mount+0x313/0x410
[  252.597435][ T7238]  ? __pfx___se_sys_mount+0x10/0x10
[  252.597462][ T7238]  ? do_syscall_64+0xbe/0xf80
[  252.597482][ T7238]  ? __x64_sys_mount+0x20/0xc0
[  252.597507][ T7238]  do_syscall_64+0xfa/0xf80
[  252.597528][ T7238]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.597544][ T7238]  ? clear_bhb_loop+0x60/0xb0
[  252.597563][ T7238]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.597580][ T7238] RIP: 0033:0x7fe31c99038a
[  252.597598][ T7238] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  252.597612][ T7238] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  252.597630][ T7238] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  252.597643][ T7238] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  252.597655][ T7238] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  252.597667][ T7238] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  252.597678][ T7238] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  252.597710][ T7238]  </TASK>
[  252.597736][ T7238] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  252.917256][ T7238] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  253.262064][ T7242] loop1: detected capacity change from 0 to 32768
[  253.275595][ T7242] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  253.283230][ T7242] CPU: 1 UID: 0 PID: 7242 Comm: syz.1.163 Not tainted syzkaller #0 PREEMPT(full) 
[  253.283252][ T7242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  253.283261][ T7242] Call Trace:
[  253.283269][ T7242]  <TASK>
[  253.283277][ T7242]  dump_stack_lvl+0x189/0x250
[  253.283306][ T7242]  ? __pfx_dump_stack_lvl+0x10/0x10
[  253.283326][ T7242]  ? __pfx__printk+0x10/0x10
[  253.283353][ T7242]  ? kernfs_path_from_node+0x250/0x290
[  253.283373][ T7242]  ? kernfs_path_from_node+0x2f/0x290
[  253.283393][ T7242]  sysfs_create_dir_ns+0x259/0x280
[  253.283408][ T7242]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  253.283420][ T7242]  ? do_raw_spin_unlock+0x122/0x240
[  253.283437][ T7242]  kobject_add_internal+0x6ab/0xcc0
[  253.283452][ T7242]  kobject_init_and_add+0x125/0x190
[  253.283471][ T7242]  ? __pfx_kobject_init_and_add+0x10/0x10
[  253.283486][ T7242]  ? __raw_spin_lock_init+0x45/0x100
[  253.283500][ T7242]  ? __init_swait_queue_head+0xa9/0x150
[  253.283517][ T7242]  gfs2_sys_fs_add+0x234/0x450
[  253.283533][ T7242]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  253.283551][ T7242]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  253.283572][ T7242]  gfs2_fill_super+0x1388/0x21b0
[  253.283592][ T7242]  ? __pfx_gfs2_fill_super+0x10/0x10
[  253.283605][ T7242]  ? sb_set_blocksize+0x155/0x240
[  253.283620][ T7242]  ? setup_bdev_super+0x4c1/0x5b0
[  253.283633][ T7242]  get_tree_bdev_flags+0x40e/0x4d0
[  253.283644][ T7242]  ? __pfx_gfs2_fill_super+0x10/0x10
[  253.283655][ T7242]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  253.283664][ T7242]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  253.283685][ T7242]  gfs2_get_tree+0x51/0x1e0
[  253.283698][ T7242]  vfs_get_tree+0x92/0x2a0
[  253.283710][ T7242]  do_new_mount+0x302/0xa10
[  253.283722][ T7242]  ? apparmor_capable+0x137/0x1a0
[  253.283736][ T7242]  ? __pfx_do_new_mount+0x10/0x10
[  253.283748][ T7242]  ? ns_capable+0x8a/0xf0
[  253.283761][ T7242]  ? kmem_cache_free+0x197/0x620
[  253.283778][ T7242]  __se_sys_mount+0x313/0x410
[  253.283794][ T7242]  ? __pfx___se_sys_mount+0x10/0x10
[  253.283809][ T7242]  ? do_syscall_64+0xbe/0xf80
[  253.283821][ T7242]  ? __x64_sys_mount+0x20/0xc0
[  253.283835][ T7242]  do_syscall_64+0xfa/0xf80
[  253.283849][ T7242]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  253.283859][ T7242]  ? clear_bhb_loop+0x60/0xb0
[  253.283871][ T7242]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  253.283881][ T7242] RIP: 0033:0x7fe31c99038a
[  253.283892][ T7242] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  253.283900][ T7242] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  253.283911][ T7242] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  253.283919][ T7242] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  253.283925][ T7242] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  253.283932][ T7242] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  253.283938][ T7242] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  253.283954][ T7242]  </TASK>
[  253.284337][ T7242] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  253.604370][ T7242] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  253.942990][ T7246] loop1: detected capacity change from 0 to 32768
[  253.961899][ T7246] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  253.969897][ T7246] CPU: 1 UID: 0 PID: 7246 Comm: syz.1.164 Not tainted syzkaller #0 PREEMPT(full) 
[  253.969926][ T7246] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  253.969936][ T7246] Call Trace:
[  253.969944][ T7246]  <TASK>
[  253.969953][ T7246]  dump_stack_lvl+0x189/0x250
[  253.969983][ T7246]  ? __pfx_dump_stack_lvl+0x10/0x10
[  253.970004][ T7246]  ? __pfx__printk+0x10/0x10
[  253.970034][ T7246]  ? kernfs_path_from_node+0x250/0x290
[  253.970053][ T7246]  ? kernfs_path_from_node+0x2f/0x290
[  253.970075][ T7246]  sysfs_create_dir_ns+0x259/0x280
[  253.970097][ T7246]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  253.970118][ T7246]  ? do_raw_spin_unlock+0x122/0x240
[  253.970146][ T7246]  kobject_add_internal+0x6ab/0xcc0
[  253.970172][ T7246]  kobject_init_and_add+0x125/0x190
[  253.970204][ T7246]  ? __pfx_kobject_init_and_add+0x10/0x10
[  253.970229][ T7246]  ? __raw_spin_lock_init+0x45/0x100
[  253.970262][ T7246]  ? __init_swait_queue_head+0xa9/0x150
[  253.970291][ T7246]  gfs2_sys_fs_add+0x234/0x450
[  253.970319][ T7246]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  253.970352][ T7246]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  253.970390][ T7246]  gfs2_fill_super+0x1388/0x21b0
[  253.970424][ T7246]  ? __pfx_gfs2_fill_super+0x10/0x10
[  253.970448][ T7246]  ? sb_set_blocksize+0x155/0x240
[  253.970472][ T7246]  ? setup_bdev_super+0x4c1/0x5b0
[  253.970493][ T7246]  get_tree_bdev_flags+0x40e/0x4d0
[  253.970511][ T7246]  ? __pfx_gfs2_fill_super+0x10/0x10
[  253.970529][ T7246]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  253.970546][ T7246]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  253.970581][ T7246]  gfs2_get_tree+0x51/0x1e0
[  253.970603][ T7246]  vfs_get_tree+0x92/0x2a0
[  253.970624][ T7246]  do_new_mount+0x302/0xa10
[  253.970644][ T7246]  ? apparmor_capable+0x137/0x1a0
[  253.970668][ T7246]  ? __pfx_do_new_mount+0x10/0x10
[  253.970690][ T7246]  ? ns_capable+0x8a/0xf0
[  253.970711][ T7246]  ? kmem_cache_free+0x197/0x620
[  253.970741][ T7246]  __se_sys_mount+0x313/0x410
[  253.970769][ T7246]  ? __pfx___se_sys_mount+0x10/0x10
[  253.970795][ T7246]  ? do_syscall_64+0xbe/0xf80
[  253.970817][ T7246]  ? __x64_sys_mount+0x20/0xc0
[  253.970843][ T7246]  do_syscall_64+0xfa/0xf80
[  253.970867][ T7246]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  253.970885][ T7246]  ? clear_bhb_loop+0x60/0xb0
[  253.970907][ T7246]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  253.970923][ T7246] RIP: 0033:0x7fe31c99038a
[  253.970941][ T7246] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  253.970955][ T7246] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  253.970992][ T7246] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  253.971003][ T7246] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  253.971015][ T7246] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  253.971026][ T7246] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  253.971036][ T7246] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  253.971065][ T7246]  </TASK>
[  253.971091][ T7246] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  254.290383][ T7246] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  254.634001][ T7250] loop1: detected capacity change from 0 to 32768
[  254.649645][ T7250] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  254.657183][ T7250] CPU: 0 UID: 0 PID: 7250 Comm: syz.1.165 Not tainted syzkaller #0 PREEMPT(full) 
[  254.657205][ T7250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  254.657215][ T7250] Call Trace:
[  254.657223][ T7250]  <TASK>
[  254.657230][ T7250]  dump_stack_lvl+0x189/0x250
[  254.657261][ T7250]  ? __pfx_dump_stack_lvl+0x10/0x10
[  254.657282][ T7250]  ? __pfx__printk+0x10/0x10
[  254.657307][ T7250]  ? kernfs_path_from_node+0x250/0x290
[  254.657322][ T7250]  ? kernfs_path_from_node+0x2f/0x290
[  254.657343][ T7250]  sysfs_create_dir_ns+0x259/0x280
[  254.657364][ T7250]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  254.657382][ T7250]  ? do_raw_spin_unlock+0x122/0x240
[  254.657408][ T7250]  kobject_add_internal+0x6ab/0xcc0
[  254.657433][ T7250]  kobject_init_and_add+0x125/0x190
[  254.657464][ T7250]  ? __pfx_kobject_init_and_add+0x10/0x10
[  254.657491][ T7250]  ? __raw_spin_lock_init+0x45/0x100
[  254.657516][ T7250]  ? __init_swait_queue_head+0xa9/0x150
[  254.657543][ T7250]  gfs2_sys_fs_add+0x234/0x450
[  254.657571][ T7250]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  254.657604][ T7250]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  254.657640][ T7250]  gfs2_fill_super+0x1388/0x21b0
[  254.657676][ T7250]  ? __pfx_gfs2_fill_super+0x10/0x10
[  254.657701][ T7250]  ? sb_set_blocksize+0x155/0x240
[  254.657732][ T7250]  ? setup_bdev_super+0x4c1/0x5b0
[  254.657756][ T7250]  get_tree_bdev_flags+0x40e/0x4d0
[  254.657776][ T7250]  ? __pfx_gfs2_fill_super+0x10/0x10
[  254.657795][ T7250]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  254.657811][ T7250]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  254.657851][ T7250]  gfs2_get_tree+0x51/0x1e0
[  254.657873][ T7250]  vfs_get_tree+0x92/0x2a0
[  254.657895][ T7250]  do_new_mount+0x302/0xa10
[  254.657915][ T7250]  ? apparmor_capable+0x137/0x1a0
[  254.657939][ T7250]  ? __pfx_do_new_mount+0x10/0x10
[  254.657961][ T7250]  ? ns_capable+0x8a/0xf0
[  254.657982][ T7250]  ? kmem_cache_free+0x197/0x620
[  254.658008][ T7250]  __se_sys_mount+0x313/0x410
[  254.658032][ T7250]  ? __pfx___se_sys_mount+0x10/0x10
[  254.658057][ T7250]  ? do_syscall_64+0xbe/0xf80
[  254.658078][ T7250]  ? __x64_sys_mount+0x20/0xc0
[  254.658100][ T7250]  do_syscall_64+0xfa/0xf80
[  254.658117][ T7250]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  254.658131][ T7250]  ? clear_bhb_loop+0x60/0xb0
[  254.658148][ T7250]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  254.658167][ T7250] RIP: 0033:0x7fe31c99038a
[  254.658181][ T7250] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  254.658192][ T7250] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  254.658207][ T7250] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  254.658217][ T7250] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  254.658227][ T7250] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  254.658236][ T7250] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  254.658244][ T7250] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  254.658268][ T7250]  </TASK>
[  254.668273][ T7250] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  254.977543][ T7250] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  255.320751][ T7254] loop1: detected capacity change from 0 to 32768
[  255.352251][ T7254] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  255.360158][ T7254] CPU: 1 UID: 0 PID: 7254 Comm: syz.1.166 Not tainted syzkaller #0 PREEMPT(full) 
[  255.360180][ T7254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  255.360189][ T7254] Call Trace:
[  255.360197][ T7254]  <TASK>
[  255.360205][ T7254]  dump_stack_lvl+0x189/0x250
[  255.360236][ T7254]  ? __pfx_dump_stack_lvl+0x10/0x10
[  255.360258][ T7254]  ? __pfx__printk+0x10/0x10
[  255.360288][ T7254]  ? kernfs_path_from_node+0x250/0x290
[  255.360306][ T7254]  ? kernfs_path_from_node+0x2f/0x290
[  255.360328][ T7254]  sysfs_create_dir_ns+0x259/0x280
[  255.360348][ T7254]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  255.360368][ T7254]  ? do_raw_spin_unlock+0x122/0x240
[  255.360400][ T7254]  kobject_add_internal+0x6ab/0xcc0
[  255.360424][ T7254]  kobject_init_and_add+0x125/0x190
[  255.360450][ T7254]  ? __pfx_kobject_init_and_add+0x10/0x10
[  255.360475][ T7254]  ? __raw_spin_lock_init+0x45/0x100
[  255.360498][ T7254]  ? __init_swait_queue_head+0xa9/0x150
[  255.360523][ T7254]  gfs2_sys_fs_add+0x234/0x450
[  255.360547][ T7254]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  255.360566][ T7254]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  255.360587][ T7254]  gfs2_fill_super+0x1388/0x21b0
[  255.360607][ T7254]  ? __pfx_gfs2_fill_super+0x10/0x10
[  255.360620][ T7254]  ? sb_set_blocksize+0x155/0x240
[  255.360636][ T7254]  ? setup_bdev_super+0x4c1/0x5b0
[  255.360649][ T7254]  get_tree_bdev_flags+0x40e/0x4d0
[  255.360659][ T7254]  ? __pfx_gfs2_fill_super+0x10/0x10
[  255.360670][ T7254]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  255.360679][ T7254]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  255.360700][ T7254]  gfs2_get_tree+0x51/0x1e0
[  255.360713][ T7254]  vfs_get_tree+0x92/0x2a0
[  255.360725][ T7254]  do_new_mount+0x302/0xa10
[  255.360737][ T7254]  ? apparmor_capable+0x137/0x1a0
[  255.360750][ T7254]  ? __pfx_do_new_mount+0x10/0x10
[  255.360762][ T7254]  ? ns_capable+0x8a/0xf0
[  255.360775][ T7254]  ? kmem_cache_free+0x197/0x620
[  255.360792][ T7254]  __se_sys_mount+0x313/0x410
[  255.360808][ T7254]  ? __pfx___se_sys_mount+0x10/0x10
[  255.360823][ T7254]  ? do_syscall_64+0xbe/0xf80
[  255.360836][ T7254]  ? __x64_sys_mount+0x20/0xc0
[  255.360850][ T7254]  do_syscall_64+0xfa/0xf80
[  255.360863][ T7254]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  255.360873][ T7254]  ? clear_bhb_loop+0x60/0xb0
[  255.360885][ T7254]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  255.360895][ T7254] RIP: 0033:0x7fe31c99038a
[  255.360913][ T7254] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  255.360920][ T7254] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  255.360932][ T7254] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  255.360940][ T7254] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  255.360947][ T7254] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  255.360953][ T7254] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  255.360959][ T7254] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  255.360976][ T7254]  </TASK>
[  255.361115][ T7254] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  255.681282][ T7254] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  255.812374][ T1297] ieee802154 phy0 wpan0: encryption failed: -22
[  255.819062][ T1297] ieee802154 phy1 wpan1: encryption failed: -22
[  256.061789][ T7258] loop1: detected capacity change from 0 to 32768
[  256.090924][ T7258] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  256.098347][ T7258] CPU: 0 UID: 0 PID: 7258 Comm: syz.1.167 Not tainted syzkaller #0 PREEMPT(full) 
[  256.098367][ T7258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  256.098375][ T7258] Call Trace:
[  256.098382][ T7258]  <TASK>
[  256.098389][ T7258]  dump_stack_lvl+0x189/0x250
[  256.098416][ T7258]  ? __pfx_dump_stack_lvl+0x10/0x10
[  256.098435][ T7258]  ? __pfx__printk+0x10/0x10
[  256.098458][ T7258]  ? kernfs_path_from_node+0x250/0x290
[  256.098470][ T7258]  ? kernfs_path_from_node+0x2f/0x290
[  256.098483][ T7258]  sysfs_create_dir_ns+0x259/0x280
[  256.098496][ T7258]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  256.098507][ T7258]  ? do_raw_spin_unlock+0x122/0x240
[  256.098524][ T7258]  kobject_add_internal+0x6ab/0xcc0
[  256.098539][ T7258]  kobject_init_and_add+0x125/0x190
[  256.098557][ T7258]  ? __pfx_kobject_init_and_add+0x10/0x10
[  256.098572][ T7258]  ? __raw_spin_lock_init+0x45/0x100
[  256.098586][ T7258]  ? __init_swait_queue_head+0xa9/0x150
[  256.098602][ T7258]  gfs2_sys_fs_add+0x234/0x450
[  256.098618][ T7258]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  256.098636][ T7258]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  256.098657][ T7258]  gfs2_fill_super+0x1388/0x21b0
[  256.098677][ T7258]  ? __pfx_gfs2_fill_super+0x10/0x10
[  256.098691][ T7258]  ? sb_set_blocksize+0x155/0x240
[  256.098706][ T7258]  ? setup_bdev_super+0x4c1/0x5b0
[  256.098719][ T7258]  get_tree_bdev_flags+0x40e/0x4d0
[  256.098729][ T7258]  ? __pfx_gfs2_fill_super+0x10/0x10
[  256.098740][ T7258]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  256.098749][ T7258]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  256.098787][ T7258]  gfs2_get_tree+0x51/0x1e0
[  256.098808][ T7258]  vfs_get_tree+0x92/0x2a0
[  256.098826][ T7258]  do_new_mount+0x302/0xa10
[  256.098844][ T7258]  ? apparmor_capable+0x137/0x1a0
[  256.098868][ T7258]  ? __pfx_do_new_mount+0x10/0x10
[  256.098890][ T7258]  ? ns_capable+0x8a/0xf0
[  256.098912][ T7258]  ? kmem_cache_free+0x197/0x620
[  256.098943][ T7258]  __se_sys_mount+0x313/0x410
[  256.098972][ T7258]  ? __pfx___se_sys_mount+0x10/0x10
[  256.098999][ T7258]  ? do_syscall_64+0xbe/0xf80
[  256.099020][ T7258]  ? __x64_sys_mount+0x20/0xc0
[  256.099044][ T7258]  do_syscall_64+0xfa/0xf80
[  256.099067][ T7258]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  256.099085][ T7258]  ? clear_bhb_loop+0x60/0xb0
[  256.099106][ T7258]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  256.099123][ T7258] RIP: 0033:0x7fe31c99038a
[  256.099141][ T7258] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  256.099156][ T7258] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  256.099174][ T7258] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  256.099187][ T7258] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  256.099199][ T7258] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  256.099209][ T7258] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  256.099221][ T7258] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  256.099250][ T7258]  </TASK>
[  256.400821][ T7258] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  256.416734][ T7258] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  256.725217][ T7262] loop1: detected capacity change from 0 to 32768
[  256.744783][ T7262] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  256.752649][ T7262] CPU: 1 UID: 0 PID: 7262 Comm: syz.1.168 Not tainted syzkaller #0 PREEMPT(full) 
[  256.752673][ T7262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  256.752690][ T7262] Call Trace:
[  256.752697][ T7262]  <TASK>
[  256.752703][ T7262]  dump_stack_lvl+0x189/0x250
[  256.752729][ T7262]  ? __pfx_dump_stack_lvl+0x10/0x10
[  256.752748][ T7262]  ? __pfx__printk+0x10/0x10
[  256.752779][ T7262]  ? kernfs_path_from_node+0x250/0x290
[  256.752797][ T7262]  ? kernfs_path_from_node+0x2f/0x290
[  256.752819][ T7262]  sysfs_create_dir_ns+0x259/0x280
[  256.752841][ T7262]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  256.752864][ T7262]  ? do_raw_spin_unlock+0x122/0x240
[  256.752893][ T7262]  kobject_add_internal+0x6ab/0xcc0
[  256.752919][ T7262]  kobject_init_and_add+0x125/0x190
[  256.752957][ T7262]  ? __pfx_kobject_init_and_add+0x10/0x10
[  256.752983][ T7262]  ? __raw_spin_lock_init+0x45/0x100
[  256.753008][ T7262]  ? __init_swait_queue_head+0xa9/0x150
[  256.753035][ T7262]  gfs2_sys_fs_add+0x234/0x450
[  256.753062][ T7262]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  256.753094][ T7262]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  256.753130][ T7262]  gfs2_fill_super+0x1388/0x21b0
[  256.753166][ T7262]  ? __pfx_gfs2_fill_super+0x10/0x10
[  256.753192][ T7262]  ? sb_set_blocksize+0x155/0x240
[  256.753218][ T7262]  ? setup_bdev_super+0x4c1/0x5b0
[  256.753241][ T7262]  get_tree_bdev_flags+0x40e/0x4d0
[  256.753261][ T7262]  ? __pfx_gfs2_fill_super+0x10/0x10
[  256.753280][ T7262]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  256.753296][ T7262]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  256.753336][ T7262]  gfs2_get_tree+0x51/0x1e0
[  256.753357][ T7262]  vfs_get_tree+0x92/0x2a0
[  256.753378][ T7262]  do_new_mount+0x302/0xa10
[  256.753397][ T7262]  ? apparmor_capable+0x137/0x1a0
[  256.753420][ T7262]  ? __pfx_do_new_mount+0x10/0x10
[  256.753441][ T7262]  ? ns_capable+0x8a/0xf0
[  256.753463][ T7262]  ? kmem_cache_free+0x197/0x620
[  256.753492][ T7262]  __se_sys_mount+0x313/0x410
[  256.753521][ T7262]  ? __pfx___se_sys_mount+0x10/0x10
[  256.753547][ T7262]  ? do_syscall_64+0xbe/0xf80
[  256.753567][ T7262]  ? __x64_sys_mount+0x20/0xc0
[  256.753592][ T7262]  do_syscall_64+0xfa/0xf80
[  256.753614][ T7262]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  256.753632][ T7262]  ? clear_bhb_loop+0x60/0xb0
[  256.753654][ T7262]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  256.753669][ T7262] RIP: 0033:0x7fe31c99038a
[  256.753687][ T7262] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  256.753700][ T7262] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  256.753719][ T7262] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  256.753733][ T7262] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  256.753745][ T7262] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  256.753757][ T7262] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  256.753769][ T7262] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  256.753801][ T7262]  </TASK>
[  256.753827][ T7262] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  257.073929][ T7262] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/03 19:54:09 executed programs: 154
[  257.410692][ T7266] loop1: detected capacity change from 0 to 32768
[  257.424133][ T7266] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  257.431805][ T7266] CPU: 0 UID: 0 PID: 7266 Comm: syz.1.169 Not tainted syzkaller #0 PREEMPT(full) 
[  257.431827][ T7266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  257.431838][ T7266] Call Trace:
[  257.431846][ T7266]  <TASK>
[  257.431853][ T7266]  dump_stack_lvl+0x189/0x250
[  257.431891][ T7266]  ? __pfx_dump_stack_lvl+0x10/0x10
[  257.431911][ T7266]  ? __pfx__printk+0x10/0x10
[  257.431940][ T7266]  ? kernfs_path_from_node+0x250/0x290
[  257.431960][ T7266]  ? kernfs_path_from_node+0x2f/0x290
[  257.431983][ T7266]  sysfs_create_dir_ns+0x259/0x280
[  257.432006][ T7266]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  257.432027][ T7266]  ? do_raw_spin_unlock+0x122/0x240
[  257.432055][ T7266]  kobject_add_internal+0x6ab/0xcc0
[  257.432081][ T7266]  kobject_init_and_add+0x125/0x190
[  257.432112][ T7266]  ? __pfx_kobject_init_and_add+0x10/0x10
[  257.432139][ T7266]  ? __raw_spin_lock_init+0x45/0x100
[  257.432164][ T7266]  ? __init_swait_queue_head+0xa9/0x150
[  257.432192][ T7266]  gfs2_sys_fs_add+0x234/0x450
[  257.432225][ T7266]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  257.432261][ T7266]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  257.432299][ T7266]  gfs2_fill_super+0x1388/0x21b0
[  257.432335][ T7266]  ? __pfx_gfs2_fill_super+0x10/0x10
[  257.432359][ T7266]  ? sb_set_blocksize+0x155/0x240
[  257.432385][ T7266]  ? setup_bdev_super+0x4c1/0x5b0
[  257.432407][ T7266]  get_tree_bdev_flags+0x40e/0x4d0
[  257.432427][ T7266]  ? __pfx_gfs2_fill_super+0x10/0x10
[  257.432446][ T7266]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  257.432463][ T7266]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  257.432498][ T7266]  gfs2_get_tree+0x51/0x1e0
[  257.432521][ T7266]  vfs_get_tree+0x92/0x2a0
[  257.432543][ T7266]  do_new_mount+0x302/0xa10
[  257.432563][ T7266]  ? apparmor_capable+0x137/0x1a0
[  257.432587][ T7266]  ? __pfx_do_new_mount+0x10/0x10
[  257.432608][ T7266]  ? ns_capable+0x8a/0xf0
[  257.432629][ T7266]  ? kmem_cache_free+0x197/0x620
[  257.432659][ T7266]  __se_sys_mount+0x313/0x410
[  257.432687][ T7266]  ? __pfx___se_sys_mount+0x10/0x10
[  257.432713][ T7266]  ? do_syscall_64+0xbe/0xf80
[  257.432734][ T7266]  ? __x64_sys_mount+0x20/0xc0
[  257.432759][ T7266]  do_syscall_64+0xfa/0xf80
[  257.432782][ T7266]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  257.432799][ T7266]  ? clear_bhb_loop+0x60/0xb0
[  257.432820][ T7266]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  257.432837][ T7266] RIP: 0033:0x7fe31c99038a
[  257.432853][ T7266] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  257.432874][ T7266] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  257.432893][ T7266] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  257.432905][ T7266] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  257.432918][ T7266] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  257.432929][ T7266] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  257.432940][ T7266] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  257.432970][ T7266]  </TASK>
[  257.433585][ T7266] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  257.752760][ T7266] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  257.880558][   T52] Bluetooth: hci0: command 0x0406 tx timeout
[  258.107864][ T7270] loop1: detected capacity change from 0 to 32768
[  258.117758][ T7270] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  258.125714][ T7270] CPU: 0 UID: 0 PID: 7270 Comm: syz.1.170 Not tainted syzkaller #0 PREEMPT(full) 
[  258.125734][ T7270] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  258.125745][ T7270] Call Trace:
[  258.125752][ T7270]  <TASK>
[  258.125759][ T7270]  dump_stack_lvl+0x189/0x250
[  258.125790][ T7270]  ? __pfx_dump_stack_lvl+0x10/0x10
[  258.125810][ T7270]  ? __pfx__printk+0x10/0x10
[  258.125838][ T7270]  ? kernfs_path_from_node+0x250/0x290
[  258.125856][ T7270]  ? kernfs_path_from_node+0x2f/0x290
[  258.125879][ T7270]  sysfs_create_dir_ns+0x259/0x280
[  258.125901][ T7270]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  258.125922][ T7270]  ? do_raw_spin_unlock+0x122/0x240
[  258.125950][ T7270]  kobject_add_internal+0x6ab/0xcc0
[  258.125975][ T7270]  kobject_init_and_add+0x125/0x190
[  258.126006][ T7270]  ? __pfx_kobject_init_and_add+0x10/0x10
[  258.126032][ T7270]  ? __raw_spin_lock_init+0x45/0x100
[  258.126057][ T7270]  ? __init_swait_queue_head+0xa9/0x150
[  258.126083][ T7270]  gfs2_sys_fs_add+0x234/0x450
[  258.126109][ T7270]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  258.126140][ T7270]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  258.126180][ T7270]  gfs2_fill_super+0x1388/0x21b0
[  258.126216][ T7270]  ? __pfx_gfs2_fill_super+0x10/0x10
[  258.126241][ T7270]  ? sb_set_blocksize+0x155/0x240
[  258.126266][ T7270]  ? setup_bdev_super+0x4c1/0x5b0
[  258.126288][ T7270]  get_tree_bdev_flags+0x40e/0x4d0
[  258.126308][ T7270]  ? __pfx_gfs2_fill_super+0x10/0x10
[  258.126325][ T7270]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  258.126342][ T7270]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  258.126376][ T7270]  gfs2_get_tree+0x51/0x1e0
[  258.126398][ T7270]  vfs_get_tree+0x92/0x2a0
[  258.126420][ T7270]  do_new_mount+0x302/0xa10
[  258.126441][ T7270]  ? apparmor_capable+0x137/0x1a0
[  258.126464][ T7270]  ? __pfx_do_new_mount+0x10/0x10
[  258.126485][ T7270]  ? ns_capable+0x8a/0xf0
[  258.126507][ T7270]  ? kmem_cache_free+0x197/0x620
[  258.126536][ T7270]  __se_sys_mount+0x313/0x410
[  258.126564][ T7270]  ? __pfx___se_sys_mount+0x10/0x10
[  258.126599][ T7270]  ? do_syscall_64+0xbe/0xf80
[  258.126619][ T7270]  ? __x64_sys_mount+0x20/0xc0
[  258.126643][ T7270]  do_syscall_64+0xfa/0xf80
[  258.126666][ T7270]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  258.126682][ T7270]  ? clear_bhb_loop+0x60/0xb0
[  258.126703][ T7270]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  258.126719][ T7270] RIP: 0033:0x7fe31c99038a
[  258.126736][ T7270] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  258.126751][ T7270] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  258.126771][ T7270] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  258.126784][ T7270] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  258.126797][ T7270] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  258.126809][ T7270] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  258.126820][ T7270] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  258.126846][ T7270]  </TASK>
[  258.126870][ T7270] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  258.446042][ T7270] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  258.857546][ T7274] loop1: detected capacity change from 0 to 32768
[  258.879822][ T7274] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  258.895876][ T7274] CPU: 0 UID: 0 PID: 7274 Comm: syz.1.171 Not tainted syzkaller #0 PREEMPT(full) 
[  258.895901][ T7274] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  258.895912][ T7274] Call Trace:
[  258.895920][ T7274]  <TASK>
[  258.895929][ T7274]  dump_stack_lvl+0x189/0x250
[  258.895959][ T7274]  ? __pfx_dump_stack_lvl+0x10/0x10
[  258.895981][ T7274]  ? __pfx__printk+0x10/0x10
[  258.896011][ T7274]  ? kernfs_path_from_node+0x250/0x290
[  258.896031][ T7274]  ? kernfs_path_from_node+0x2f/0x290
[  258.896054][ T7274]  sysfs_create_dir_ns+0x259/0x280
[  258.896076][ T7274]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  258.896098][ T7274]  ? do_raw_spin_unlock+0x122/0x240
[  258.896127][ T7274]  kobject_add_internal+0x6ab/0xcc0
[  258.896153][ T7274]  kobject_init_and_add+0x125/0x190
[  258.896185][ T7274]  ? __pfx_kobject_init_and_add+0x10/0x10
[  258.896211][ T7274]  ? __raw_spin_lock_init+0x45/0x100
[  258.896236][ T7274]  ? __init_swait_queue_head+0xa9/0x150
[  258.896264][ T7274]  gfs2_sys_fs_add+0x234/0x450
[  258.896291][ T7274]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  258.896323][ T7274]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  258.896361][ T7274]  gfs2_fill_super+0x1388/0x21b0
[  258.896397][ T7274]  ? __pfx_gfs2_fill_super+0x10/0x10
[  258.896421][ T7274]  ? sb_set_blocksize+0x155/0x240
[  258.896446][ T7274]  ? setup_bdev_super+0x4c1/0x5b0
[  258.896478][ T7274]  get_tree_bdev_flags+0x40e/0x4d0
[  258.896498][ T7274]  ? __pfx_gfs2_fill_super+0x10/0x10
[  258.896517][ T7274]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  258.896534][ T7274]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  258.896570][ T7274]  gfs2_get_tree+0x51/0x1e0
[  258.896603][ T7274]  vfs_get_tree+0x92/0x2a0
[  258.896626][ T7274]  do_new_mount+0x302/0xa10
[  258.896647][ T7274]  ? apparmor_capable+0x137/0x1a0
[  258.896671][ T7274]  ? __pfx_do_new_mount+0x10/0x10
[  258.896693][ T7274]  ? ns_capable+0x8a/0xf0
[  258.896714][ T7274]  ? kmem_cache_free+0x197/0x620
[  258.896746][ T7274]  __se_sys_mount+0x313/0x410
[  258.896776][ T7274]  ? __pfx___se_sys_mount+0x10/0x10
[  258.896798][ T7274]  ? do_syscall_64+0xbe/0xf80
[  258.896817][ T7274]  ? __x64_sys_mount+0x20/0xc0
[  258.896838][ T7274]  do_syscall_64+0xfa/0xf80
[  258.896860][ T7274]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  258.896877][ T7274]  ? clear_bhb_loop+0x60/0xb0
[  258.896898][ T7274]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  258.896914][ T7274] RIP: 0033:0x7fe31c99038a
[  258.896932][ T7274] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  258.896946][ T7274] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  258.896965][ T7274] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  258.896978][ T7274] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  258.896991][ T7274] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  258.897003][ T7274] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  258.897014][ T7274] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  258.897045][ T7274]  </TASK>
[  258.897070][ T7274] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  259.221977][ T7274] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  259.574199][ T7278] loop1: detected capacity change from 0 to 32768
[  259.587029][ T7278] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  259.595832][ T7278] CPU: 0 UID: 0 PID: 7278 Comm: syz.1.172 Not tainted syzkaller #0 PREEMPT(full) 
[  259.595855][ T7278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  259.595866][ T7278] Call Trace:
[  259.595874][ T7278]  <TASK>
[  259.595881][ T7278]  dump_stack_lvl+0x189/0x250
[  259.595912][ T7278]  ? __pfx_dump_stack_lvl+0x10/0x10
[  259.595932][ T7278]  ? __pfx__printk+0x10/0x10
[  259.595961][ T7278]  ? kernfs_path_from_node+0x250/0x290
[  259.595979][ T7278]  ? kernfs_path_from_node+0x2f/0x290
[  259.595993][ T7278]  sysfs_create_dir_ns+0x259/0x280
[  259.596006][ T7278]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  259.596018][ T7278]  ? do_raw_spin_unlock+0x122/0x240
[  259.596035][ T7278]  kobject_add_internal+0x6ab/0xcc0
[  259.596049][ T7278]  kobject_init_and_add+0x125/0x190
[  259.596067][ T7278]  ? __pfx_kobject_init_and_add+0x10/0x10
[  259.596083][ T7278]  ? __raw_spin_lock_init+0x45/0x100
[  259.596097][ T7278]  ? __init_swait_queue_head+0xa9/0x150
[  259.596113][ T7278]  gfs2_sys_fs_add+0x234/0x450
[  259.596129][ T7278]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  259.596147][ T7278]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  259.596169][ T7278]  gfs2_fill_super+0x1388/0x21b0
[  259.596188][ T7278]  ? __pfx_gfs2_fill_super+0x10/0x10
[  259.596201][ T7278]  ? sb_set_blocksize+0x155/0x240
[  259.596217][ T7278]  ? setup_bdev_super+0x4c1/0x5b0
[  259.596230][ T7278]  get_tree_bdev_flags+0x40e/0x4d0
[  259.596240][ T7278]  ? __pfx_gfs2_fill_super+0x10/0x10
[  259.596251][ T7278]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  259.596260][ T7278]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  259.596281][ T7278]  gfs2_get_tree+0x51/0x1e0
[  259.596294][ T7278]  vfs_get_tree+0x92/0x2a0
[  259.596306][ T7278]  do_new_mount+0x302/0xa10
[  259.596332][ T7278]  ? apparmor_capable+0x137/0x1a0
[  259.596345][ T7278]  ? __pfx_do_new_mount+0x10/0x10
[  259.596357][ T7278]  ? ns_capable+0x8a/0xf0
[  259.596370][ T7278]  ? kmem_cache_free+0x197/0x620
[  259.596387][ T7278]  __se_sys_mount+0x313/0x410
[  259.596403][ T7278]  ? __pfx___se_sys_mount+0x10/0x10
[  259.596418][ T7278]  ? do_syscall_64+0xbe/0xf80
[  259.596430][ T7278]  ? __x64_sys_mount+0x20/0xc0
[  259.596444][ T7278]  do_syscall_64+0xfa/0xf80
[  259.596457][ T7278]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  259.596467][ T7278]  ? clear_bhb_loop+0x60/0xb0
[  259.596479][ T7278]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  259.596488][ T7278] RIP: 0033:0x7fe31c99038a
[  259.596499][ T7278] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  259.596507][ T7278] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  259.596518][ T7278] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  259.596526][ T7278] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  259.596532][ T7278] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  259.596538][ T7278] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  259.596544][ T7278] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  259.596561][ T7278]  </TASK>
[  259.596698][ T7278] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  259.916230][ T7278] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  260.259200][ T7282] loop1: detected capacity change from 0 to 32768
[  260.272833][ T7282] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  260.282886][ T7282] CPU: 1 UID: 0 PID: 7282 Comm: syz.1.173 Not tainted syzkaller #0 PREEMPT(full) 
[  260.282913][ T7282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  260.282924][ T7282] Call Trace:
[  260.282932][ T7282]  <TASK>
[  260.282940][ T7282]  dump_stack_lvl+0x189/0x250
[  260.282971][ T7282]  ? __pfx_dump_stack_lvl+0x10/0x10
[  260.282993][ T7282]  ? __pfx__printk+0x10/0x10
[  260.283024][ T7282]  ? kernfs_path_from_node+0x250/0x290
[  260.283043][ T7282]  ? kernfs_path_from_node+0x2f/0x290
[  260.283067][ T7282]  sysfs_create_dir_ns+0x259/0x280
[  260.283090][ T7282]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  260.283112][ T7282]  ? do_raw_spin_unlock+0x122/0x240
[  260.283141][ T7282]  kobject_add_internal+0x6ab/0xcc0
[  260.283169][ T7282]  kobject_init_and_add+0x125/0x190
[  260.283200][ T7282]  ? __pfx_kobject_init_and_add+0x10/0x10
[  260.283227][ T7282]  ? __raw_spin_lock_init+0x45/0x100
[  260.283252][ T7282]  ? __init_swait_queue_head+0xa9/0x150
[  260.283280][ T7282]  gfs2_sys_fs_add+0x234/0x450
[  260.283315][ T7282]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  260.283348][ T7282]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  260.283386][ T7282]  gfs2_fill_super+0x1388/0x21b0
[  260.283423][ T7282]  ? __pfx_gfs2_fill_super+0x10/0x10
[  260.283448][ T7282]  ? sb_set_blocksize+0x155/0x240
[  260.283474][ T7282]  ? setup_bdev_super+0x4c1/0x5b0
[  260.283498][ T7282]  get_tree_bdev_flags+0x40e/0x4d0
[  260.283517][ T7282]  ? __pfx_gfs2_fill_super+0x10/0x10
[  260.283537][ T7282]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  260.283553][ T7282]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  260.283591][ T7282]  gfs2_get_tree+0x51/0x1e0
[  260.283614][ T7282]  vfs_get_tree+0x92/0x2a0
[  260.283636][ T7282]  do_new_mount+0x302/0xa10
[  260.283656][ T7282]  ? apparmor_capable+0x137/0x1a0
[  260.283681][ T7282]  ? __pfx_do_new_mount+0x10/0x10
[  260.283703][ T7282]  ? ns_capable+0x8a/0xf0
[  260.283725][ T7282]  ? kmem_cache_free+0x197/0x620
[  260.283756][ T7282]  __se_sys_mount+0x313/0x410
[  260.283785][ T7282]  ? __pfx___se_sys_mount+0x10/0x10
[  260.283812][ T7282]  ? do_syscall_64+0xbe/0xf80
[  260.283834][ T7282]  ? __x64_sys_mount+0x20/0xc0
[  260.283859][ T7282]  do_syscall_64+0xfa/0xf80
[  260.283882][ T7282]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  260.283900][ T7282]  ? clear_bhb_loop+0x60/0xb0
[  260.283921][ T7282]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  260.283939][ T7282] RIP: 0033:0x7fe31c99038a
[  260.283956][ T7282] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  260.283971][ T7282] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  260.283989][ T7282] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  260.284002][ T7282] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  260.284015][ T7282] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  260.284026][ T7282] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  260.284038][ T7282] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  260.284069][ T7282]  </TASK>
[  260.284095][ T7282] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  260.603732][ T7282] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  260.951270][ T7286] loop1: detected capacity change from 0 to 32768
[  260.985755][ T7286] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  260.993338][ T7286] CPU: 1 UID: 0 PID: 7286 Comm: syz.1.174 Not tainted syzkaller #0 PREEMPT(full) 
[  260.993362][ T7286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  260.993373][ T7286] Call Trace:
[  260.993382][ T7286]  <TASK>
[  260.993389][ T7286]  dump_stack_lvl+0x189/0x250
[  260.993419][ T7286]  ? __pfx_dump_stack_lvl+0x10/0x10
[  260.993438][ T7286]  ? __pfx__printk+0x10/0x10
[  260.993466][ T7286]  ? kernfs_path_from_node+0x250/0x290
[  260.993484][ T7286]  ? kernfs_path_from_node+0x2f/0x290
[  260.993505][ T7286]  sysfs_create_dir_ns+0x259/0x280
[  260.993526][ T7286]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  260.993547][ T7286]  ? do_raw_spin_unlock+0x122/0x240
[  260.993568][ T7286]  kobject_add_internal+0x6ab/0xcc0
[  260.993583][ T7286]  kobject_init_and_add+0x125/0x190
[  260.993601][ T7286]  ? __pfx_kobject_init_and_add+0x10/0x10
[  260.993617][ T7286]  ? __raw_spin_lock_init+0x45/0x100
[  260.993631][ T7286]  ? __init_swait_queue_head+0xa9/0x150
[  260.993647][ T7286]  gfs2_sys_fs_add+0x234/0x450
[  260.993663][ T7286]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  260.993681][ T7286]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  260.993703][ T7286]  gfs2_fill_super+0x1388/0x21b0
[  260.993722][ T7286]  ? __pfx_gfs2_fill_super+0x10/0x10
[  260.993735][ T7286]  ? sb_set_blocksize+0x155/0x240
[  260.993751][ T7286]  ? setup_bdev_super+0x4c1/0x5b0
[  260.993763][ T7286]  get_tree_bdev_flags+0x40e/0x4d0
[  260.993774][ T7286]  ? __pfx_gfs2_fill_super+0x10/0x10
[  260.993785][ T7286]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  260.993794][ T7286]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  260.993815][ T7286]  gfs2_get_tree+0x51/0x1e0
[  260.993827][ T7286]  vfs_get_tree+0x92/0x2a0
[  260.993839][ T7286]  do_new_mount+0x302/0xa10
[  260.993851][ T7286]  ? apparmor_capable+0x137/0x1a0
[  260.993864][ T7286]  ? __pfx_do_new_mount+0x10/0x10
[  260.993876][ T7286]  ? ns_capable+0x8a/0xf0
[  260.993888][ T7286]  ? kmem_cache_free+0x197/0x620
[  260.993905][ T7286]  __se_sys_mount+0x313/0x410
[  260.993921][ T7286]  ? __pfx___se_sys_mount+0x10/0x10
[  260.993936][ T7286]  ? do_syscall_64+0xbe/0xf80
[  260.993948][ T7286]  ? __x64_sys_mount+0x20/0xc0
[  260.993962][ T7286]  do_syscall_64+0xfa/0xf80
[  260.993975][ T7286]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  260.993985][ T7286]  ? clear_bhb_loop+0x60/0xb0
[  260.993997][ T7286]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  260.994006][ T7286] RIP: 0033:0x7fe31c99038a
[  260.994017][ T7286] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  260.994026][ T7286] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  260.994037][ T7286] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  260.994044][ T7286] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  260.994051][ T7286] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  260.994057][ T7286] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  260.994063][ T7286] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  260.994079][ T7286]  </TASK>
[  260.994505][ T7286] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  261.313998][ T7286] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  261.656555][ T7290] loop1: detected capacity change from 0 to 32768
[  261.692562][ T7290] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  261.700611][ T7290] CPU: 1 UID: 0 PID: 7290 Comm: syz.1.175 Not tainted syzkaller #0 PREEMPT(full) 
[  261.700636][ T7290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  261.700648][ T7290] Call Trace:
[  261.700656][ T7290]  <TASK>
[  261.700665][ T7290]  dump_stack_lvl+0x189/0x250
[  261.700695][ T7290]  ? __pfx_dump_stack_lvl+0x10/0x10
[  261.700717][ T7290]  ? __pfx__printk+0x10/0x10
[  261.700748][ T7290]  ? kernfs_path_from_node+0x250/0x290
[  261.700767][ T7290]  ? kernfs_path_from_node+0x2f/0x290
[  261.700789][ T7290]  sysfs_create_dir_ns+0x259/0x280
[  261.700810][ T7290]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  261.700832][ T7290]  ? do_raw_spin_unlock+0x122/0x240
[  261.700861][ T7290]  kobject_add_internal+0x6ab/0xcc0
[  261.700887][ T7290]  kobject_init_and_add+0x125/0x190
[  261.700916][ T7290]  ? __pfx_kobject_init_and_add+0x10/0x10
[  261.700941][ T7290]  ? __raw_spin_lock_init+0x45/0x100
[  261.700965][ T7290]  ? __init_swait_queue_head+0xa9/0x150
[  261.700992][ T7290]  gfs2_sys_fs_add+0x234/0x450
[  261.701019][ T7290]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  261.701050][ T7290]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  261.701087][ T7290]  gfs2_fill_super+0x1388/0x21b0
[  261.701122][ T7290]  ? __pfx_gfs2_fill_super+0x10/0x10
[  261.701156][ T7290]  ? sb_set_blocksize+0x155/0x240
[  261.701182][ T7290]  ? setup_bdev_super+0x4c1/0x5b0
[  261.701204][ T7290]  get_tree_bdev_flags+0x40e/0x4d0
[  261.701224][ T7290]  ? __pfx_gfs2_fill_super+0x10/0x10
[  261.701243][ T7290]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  261.701261][ T7290]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  261.701298][ T7290]  gfs2_get_tree+0x51/0x1e0
[  261.701322][ T7290]  vfs_get_tree+0x92/0x2a0
[  261.701343][ T7290]  do_new_mount+0x302/0xa10
[  261.701363][ T7290]  ? apparmor_capable+0x137/0x1a0
[  261.701386][ T7290]  ? __pfx_do_new_mount+0x10/0x10
[  261.701407][ T7290]  ? ns_capable+0x8a/0xf0
[  261.701427][ T7290]  ? kmem_cache_free+0x197/0x620
[  261.701456][ T7290]  __se_sys_mount+0x313/0x410
[  261.701483][ T7290]  ? __pfx___se_sys_mount+0x10/0x10
[  261.701510][ T7290]  ? do_syscall_64+0xbe/0xf80
[  261.701531][ T7290]  ? __x64_sys_mount+0x20/0xc0
[  261.701554][ T7290]  do_syscall_64+0xfa/0xf80
[  261.701577][ T7290]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  261.701594][ T7290]  ? clear_bhb_loop+0x60/0xb0
[  261.701614][ T7290]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  261.701631][ T7290] RIP: 0033:0x7fe31c99038a
[  261.701648][ T7290] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  261.701663][ T7290] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  261.701682][ T7290] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  261.701695][ T7290] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  261.701706][ T7290] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  261.701716][ T7290] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  261.701727][ T7290] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  261.701757][ T7290]  </TASK>
[  261.701785][ T7290] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  262.021047][ T7290] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  262.367403][ T7294] loop1: detected capacity change from 0 to 32768
[  262.380030][ T7294] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  262.387448][ T7294] CPU: 1 UID: 0 PID: 7294 Comm: syz.1.176 Not tainted syzkaller #0 PREEMPT(full) 
[  262.387462][ T7294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  262.387469][ T7294] Call Trace:
[  262.387474][ T7294]  <TASK>
[  262.387479][ T7294]  dump_stack_lvl+0x189/0x250
[  262.387500][ T7294]  ? __pfx_dump_stack_lvl+0x10/0x10
[  262.387513][ T7294]  ? __pfx__printk+0x10/0x10
[  262.387530][ T7294]  ? kernfs_path_from_node+0x250/0x290
[  262.387542][ T7294]  ? kernfs_path_from_node+0x2f/0x290
[  262.387555][ T7294]  sysfs_create_dir_ns+0x259/0x280
[  262.387567][ T7294]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  262.387579][ T7294]  ? do_raw_spin_unlock+0x122/0x240
[  262.387596][ T7294]  kobject_add_internal+0x6ab/0xcc0
[  262.387611][ T7294]  kobject_init_and_add+0x125/0x190
[  262.387629][ T7294]  ? __pfx_kobject_init_and_add+0x10/0x10
[  262.387645][ T7294]  ? __raw_spin_lock_init+0x45/0x100
[  262.387659][ T7294]  ? __init_swait_queue_head+0xa9/0x150
[  262.387675][ T7294]  gfs2_sys_fs_add+0x234/0x450
[  262.387691][ T7294]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  262.387709][ T7294]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  262.387730][ T7294]  gfs2_fill_super+0x1388/0x21b0
[  262.387750][ T7294]  ? __pfx_gfs2_fill_super+0x10/0x10
[  262.387763][ T7294]  ? sb_set_blocksize+0x155/0x240
[  262.387778][ T7294]  ? setup_bdev_super+0x4c1/0x5b0
[  262.387791][ T7294]  get_tree_bdev_flags+0x40e/0x4d0
[  262.387802][ T7294]  ? __pfx_gfs2_fill_super+0x10/0x10
[  262.387813][ T7294]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  262.387822][ T7294]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  262.387843][ T7294]  gfs2_get_tree+0x51/0x1e0
[  262.387856][ T7294]  vfs_get_tree+0x92/0x2a0
[  262.387868][ T7294]  do_new_mount+0x302/0xa10
[  262.387880][ T7294]  ? apparmor_capable+0x137/0x1a0
[  262.387894][ T7294]  ? __pfx_do_new_mount+0x10/0x10
[  262.387906][ T7294]  ? ns_capable+0x8a/0xf0
[  262.387918][ T7294]  ? kmem_cache_free+0x197/0x620
[  262.387935][ T7294]  __se_sys_mount+0x313/0x410
[  262.387951][ T7294]  ? __pfx___se_sys_mount+0x10/0x10
[  262.387966][ T7294]  ? do_syscall_64+0xbe/0xf80
[  262.387979][ T7294]  ? __x64_sys_mount+0x20/0xc0
[  262.387992][ T7294]  do_syscall_64+0xfa/0xf80
[  262.388006][ T7294]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  262.388015][ T7294]  ? clear_bhb_loop+0x60/0xb0
[  262.388027][ T7294]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  262.388037][ T7294] RIP: 0033:0x7fe31c99038a
[  262.388055][ T7294] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  262.388063][ T7294] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  262.388074][ T7294] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  262.388082][ T7294] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  262.388088][ T7294] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  262.388095][ T7294] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  262.388101][ T7294] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  262.388117][ T7294]  </TASK>
[  262.388133][ T7294] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  262.706826][ T7294] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/03 19:54:14 executed programs: 162
[  263.052115][ T7298] loop1: detected capacity change from 0 to 32768
[  263.072098][ T7298] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  263.079886][ T7298] CPU: 1 UID: 0 PID: 7298 Comm: syz.1.177 Not tainted syzkaller #0 PREEMPT(full) 
[  263.079920][ T7298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  263.079929][ T7298] Call Trace:
[  263.079936][ T7298]  <TASK>
[  263.079944][ T7298]  dump_stack_lvl+0x189/0x250
[  263.079974][ T7298]  ? __pfx_dump_stack_lvl+0x10/0x10
[  263.080003][ T7298]  ? __pfx__printk+0x10/0x10
[  263.080033][ T7298]  ? kernfs_path_from_node+0x250/0x290
[  263.080050][ T7298]  ? kernfs_path_from_node+0x2f/0x290
[  263.080070][ T7298]  sysfs_create_dir_ns+0x259/0x280
[  263.080089][ T7298]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  263.080109][ T7298]  ? do_raw_spin_unlock+0x122/0x240
[  263.080134][ T7298]  kobject_add_internal+0x6ab/0xcc0
[  263.080158][ T7298]  kobject_init_and_add+0x125/0x190
[  263.080183][ T7298]  ? __pfx_kobject_init_and_add+0x10/0x10
[  263.080207][ T7298]  ? __raw_spin_lock_init+0x45/0x100
[  263.080229][ T7298]  ? __init_swait_queue_head+0xa9/0x150
[  263.080254][ T7298]  gfs2_sys_fs_add+0x234/0x450
[  263.080277][ T7298]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  263.080306][ T7298]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  263.080341][ T7298]  gfs2_fill_super+0x1388/0x21b0
[  263.080374][ T7298]  ? __pfx_gfs2_fill_super+0x10/0x10
[  263.080395][ T7298]  ? sb_set_blocksize+0x155/0x240
[  263.080420][ T7298]  ? setup_bdev_super+0x4c1/0x5b0
[  263.080441][ T7298]  get_tree_bdev_flags+0x40e/0x4d0
[  263.080459][ T7298]  ? __pfx_gfs2_fill_super+0x10/0x10
[  263.080477][ T7298]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  263.080492][ T7298]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  263.080525][ T7298]  gfs2_get_tree+0x51/0x1e0
[  263.080548][ T7298]  vfs_get_tree+0x92/0x2a0
[  263.080570][ T7298]  do_new_mount+0x302/0xa10
[  263.080589][ T7298]  ? apparmor_capable+0x137/0x1a0
[  263.080610][ T7298]  ? __pfx_do_new_mount+0x10/0x10
[  263.080631][ T7298]  ? ns_capable+0x8a/0xf0
[  263.080651][ T7298]  ? kmem_cache_free+0x197/0x620
[  263.080683][ T7298]  __se_sys_mount+0x313/0x410
[  263.080712][ T7298]  ? __pfx___se_sys_mount+0x10/0x10
[  263.080739][ T7298]  ? do_syscall_64+0xbe/0xf80
[  263.080760][ T7298]  ? __x64_sys_mount+0x20/0xc0
[  263.080781][ T7298]  do_syscall_64+0xfa/0xf80
[  263.080803][ T7298]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  263.080820][ T7298]  ? clear_bhb_loop+0x60/0xb0
[  263.080842][ T7298]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  263.080856][ T7298] RIP: 0033:0x7fe31c99038a
[  263.080874][ T7298] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  263.080888][ T7298] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  263.080906][ T7298] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  263.080917][ T7298] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  263.080928][ T7298] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  263.080938][ T7298] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  263.080949][ T7298] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  263.080979][ T7298]  </TASK>
[  263.081019][ T7298] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  263.400902][ T7298] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  263.753306][ T7302] loop1: detected capacity change from 0 to 32768
[  263.770554][ T7302] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  263.778131][ T7302] CPU: 1 UID: 0 PID: 7302 Comm: syz.1.178 Not tainted syzkaller #0 PREEMPT(full) 
[  263.778153][ T7302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  263.778163][ T7302] Call Trace:
[  263.778171][ T7302]  <TASK>
[  263.778177][ T7302]  dump_stack_lvl+0x189/0x250
[  263.778205][ T7302]  ? __pfx_dump_stack_lvl+0x10/0x10
[  263.778223][ T7302]  ? __pfx__printk+0x10/0x10
[  263.778248][ T7302]  ? kernfs_path_from_node+0x250/0x290
[  263.778266][ T7302]  ? kernfs_path_from_node+0x2f/0x290
[  263.778287][ T7302]  sysfs_create_dir_ns+0x259/0x280
[  263.778307][ T7302]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  263.778329][ T7302]  ? do_raw_spin_unlock+0x122/0x240
[  263.778358][ T7302]  kobject_add_internal+0x6ab/0xcc0
[  263.778383][ T7302]  kobject_init_and_add+0x125/0x190
[  263.778413][ T7302]  ? __pfx_kobject_init_and_add+0x10/0x10
[  263.778437][ T7302]  ? __raw_spin_lock_init+0x45/0x100
[  263.778460][ T7302]  ? __init_swait_queue_head+0xa9/0x150
[  263.778485][ T7302]  gfs2_sys_fs_add+0x234/0x450
[  263.778509][ T7302]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  263.778536][ T7302]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  263.778572][ T7302]  gfs2_fill_super+0x1388/0x21b0
[  263.778604][ T7302]  ? __pfx_gfs2_fill_super+0x10/0x10
[  263.778626][ T7302]  ? sb_set_blocksize+0x155/0x240
[  263.778650][ T7302]  ? setup_bdev_super+0x4c1/0x5b0
[  263.778673][ T7302]  get_tree_bdev_flags+0x40e/0x4d0
[  263.778692][ T7302]  ? __pfx_gfs2_fill_super+0x10/0x10
[  263.778710][ T7302]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  263.778726][ T7302]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  263.778766][ T7302]  gfs2_get_tree+0x51/0x1e0
[  263.778786][ T7302]  vfs_get_tree+0x92/0x2a0
[  263.778806][ T7302]  do_new_mount+0x302/0xa10
[  263.778826][ T7302]  ? apparmor_capable+0x137/0x1a0
[  263.778849][ T7302]  ? __pfx_do_new_mount+0x10/0x10
[  263.778869][ T7302]  ? ns_capable+0x8a/0xf0
[  263.778890][ T7302]  ? kmem_cache_free+0x197/0x620
[  263.778930][ T7302]  __se_sys_mount+0x313/0x410
[  263.778956][ T7302]  ? __pfx___se_sys_mount+0x10/0x10
[  263.778982][ T7302]  ? do_syscall_64+0xbe/0xf80
[  263.779004][ T7302]  ? __x64_sys_mount+0x20/0xc0
[  263.779029][ T7302]  do_syscall_64+0xfa/0xf80
[  263.779052][ T7302]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  263.779069][ T7302]  ? clear_bhb_loop+0x60/0xb0
[  263.779090][ T7302]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  263.779106][ T7302] RIP: 0033:0x7fe31c99038a
[  263.779122][ T7302] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  263.779136][ T7302] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  263.779154][ T7302] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  263.779166][ T7302] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  263.779177][ T7302] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  263.779187][ T7302] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  263.779198][ T7302] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  263.779225][ T7302]  </TASK>
[  264.085358][ T7302] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  264.100261][ T7302] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  264.432685][ T7306] loop1: detected capacity change from 0 to 32768
[  264.470911][ T7306] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  264.478421][ T7306] CPU: 1 UID: 0 PID: 7306 Comm: syz.1.179 Not tainted syzkaller #0 PREEMPT(full) 
[  264.478441][ T7306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  264.478451][ T7306] Call Trace:
[  264.478458][ T7306]  <TASK>
[  264.478465][ T7306]  dump_stack_lvl+0x189/0x250
[  264.478492][ T7306]  ? __pfx_dump_stack_lvl+0x10/0x10
[  264.478510][ T7306]  ? __pfx__printk+0x10/0x10
[  264.478538][ T7306]  ? kernfs_path_from_node+0x250/0x290
[  264.478555][ T7306]  ? kernfs_path_from_node+0x2f/0x290
[  264.478575][ T7306]  sysfs_create_dir_ns+0x259/0x280
[  264.478595][ T7306]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  264.478616][ T7306]  ? do_raw_spin_unlock+0x122/0x240
[  264.478642][ T7306]  kobject_add_internal+0x6ab/0xcc0
[  264.478664][ T7306]  kobject_init_and_add+0x125/0x190
[  264.478693][ T7306]  ? __pfx_kobject_init_and_add+0x10/0x10
[  264.478715][ T7306]  ? __raw_spin_lock_init+0x45/0x100
[  264.478737][ T7306]  ? __init_swait_queue_head+0xa9/0x150
[  264.478764][ T7306]  gfs2_sys_fs_add+0x234/0x450
[  264.478788][ T7306]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  264.478816][ T7306]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  264.478859][ T7306]  gfs2_fill_super+0x1388/0x21b0
[  264.478894][ T7306]  ? __pfx_gfs2_fill_super+0x10/0x10
[  264.478918][ T7306]  ? sb_set_blocksize+0x155/0x240
[  264.478943][ T7306]  ? setup_bdev_super+0x4c1/0x5b0
[  264.478966][ T7306]  get_tree_bdev_flags+0x40e/0x4d0
[  264.478984][ T7306]  ? __pfx_gfs2_fill_super+0x10/0x10
[  264.479003][ T7306]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  264.479020][ T7306]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  264.479056][ T7306]  gfs2_get_tree+0x51/0x1e0
[  264.479077][ T7306]  vfs_get_tree+0x92/0x2a0
[  264.479097][ T7306]  do_new_mount+0x302/0xa10
[  264.479116][ T7306]  ? apparmor_capable+0x137/0x1a0
[  264.479139][ T7306]  ? __pfx_do_new_mount+0x10/0x10
[  264.479160][ T7306]  ? ns_capable+0x8a/0xf0
[  264.479181][ T7306]  ? kmem_cache_free+0x197/0x620
[  264.479212][ T7306]  __se_sys_mount+0x313/0x410
[  264.479240][ T7306]  ? __pfx___se_sys_mount+0x10/0x10
[  264.479267][ T7306]  ? do_syscall_64+0xbe/0xf80
[  264.479289][ T7306]  ? __x64_sys_mount+0x20/0xc0
[  264.479312][ T7306]  do_syscall_64+0xfa/0xf80
[  264.479333][ T7306]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  264.479349][ T7306]  ? clear_bhb_loop+0x60/0xb0
[  264.479370][ T7306]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  264.479386][ T7306] RIP: 0033:0x7fe31c99038a
[  264.479402][ T7306] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  264.479415][ T7306] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  264.479432][ T7306] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  264.479443][ T7306] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  264.479454][ T7306] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  264.479464][ T7306] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  264.479476][ T7306] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  264.479505][ T7306]  </TASK>
[  264.788976][ T7306] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  264.803247][ T7306] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  265.144420][ T7310] loop1: detected capacity change from 0 to 32768
[  265.181357][ T7310] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  265.189513][ T7310] CPU: 1 UID: 0 PID: 7310 Comm: syz.1.180 Not tainted syzkaller #0 PREEMPT(full) 
[  265.189537][ T7310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  265.189548][ T7310] Call Trace:
[  265.189556][ T7310]  <TASK>
[  265.189564][ T7310]  dump_stack_lvl+0x189/0x250
[  265.189593][ T7310]  ? __pfx_dump_stack_lvl+0x10/0x10
[  265.189615][ T7310]  ? __pfx__printk+0x10/0x10
[  265.189644][ T7310]  ? kernfs_path_from_node+0x250/0x290
[  265.189663][ T7310]  ? kernfs_path_from_node+0x2f/0x290
[  265.189685][ T7310]  sysfs_create_dir_ns+0x259/0x280
[  265.189708][ T7310]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  265.189749][ T7310]  ? do_raw_spin_unlock+0x122/0x240
[  265.189783][ T7310]  kobject_add_internal+0x6ab/0xcc0
[  265.189809][ T7310]  kobject_init_and_add+0x125/0x190
[  265.189841][ T7310]  ? __pfx_kobject_init_and_add+0x10/0x10
[  265.189867][ T7310]  ? __raw_spin_lock_init+0x45/0x100
[  265.189892][ T7310]  ? __init_swait_queue_head+0xa9/0x150
[  265.189919][ T7310]  gfs2_sys_fs_add+0x234/0x450
[  265.189945][ T7310]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  265.189976][ T7310]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  265.190013][ T7310]  gfs2_fill_super+0x1388/0x21b0
[  265.190046][ T7310]  ? __pfx_gfs2_fill_super+0x10/0x10
[  265.190068][ T7310]  ? sb_set_blocksize+0x155/0x240
[  265.190094][ T7310]  ? setup_bdev_super+0x4c1/0x5b0
[  265.190115][ T7310]  get_tree_bdev_flags+0x40e/0x4d0
[  265.190133][ T7310]  ? __pfx_gfs2_fill_super+0x10/0x10
[  265.190153][ T7310]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  265.190170][ T7310]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  265.190206][ T7310]  gfs2_get_tree+0x51/0x1e0
[  265.190228][ T7310]  vfs_get_tree+0x92/0x2a0
[  265.190250][ T7310]  do_new_mount+0x302/0xa10
[  265.190270][ T7310]  ? apparmor_capable+0x137/0x1a0
[  265.190291][ T7310]  ? __pfx_do_new_mount+0x10/0x10
[  265.190311][ T7310]  ? ns_capable+0x8a/0xf0
[  265.190332][ T7310]  ? kmem_cache_free+0x197/0x620
[  265.190362][ T7310]  __se_sys_mount+0x313/0x410
[  265.190391][ T7310]  ? __pfx___se_sys_mount+0x10/0x10
[  265.190418][ T7310]  ? do_syscall_64+0xbe/0xf80
[  265.190439][ T7310]  ? __x64_sys_mount+0x20/0xc0
[  265.190463][ T7310]  do_syscall_64+0xfa/0xf80
[  265.190485][ T7310]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  265.190503][ T7310]  ? clear_bhb_loop+0x60/0xb0
[  265.190525][ T7310]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  265.190541][ T7310] RIP: 0033:0x7fe31c99038a
[  265.190559][ T7310] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  265.190572][ T7310] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  265.190590][ T7310] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  265.190600][ T7310] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  265.190612][ T7310] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  265.190623][ T7310] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  265.190635][ T7310] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  265.190661][ T7310]  </TASK>
[  265.190685][ T7310] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  265.510596][ T7310] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  265.842589][ T7314] loop1: detected capacity change from 0 to 32768
[  265.855015][ T7314] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  265.863192][ T7314] CPU: 1 UID: 0 PID: 7314 Comm: syz.1.181 Not tainted syzkaller #0 PREEMPT(full) 
[  265.863215][ T7314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  265.863226][ T7314] Call Trace:
[  265.863234][ T7314]  <TASK>
[  265.863241][ T7314]  dump_stack_lvl+0x189/0x250
[  265.863270][ T7314]  ? __pfx_dump_stack_lvl+0x10/0x10
[  265.863291][ T7314]  ? __pfx__printk+0x10/0x10
[  265.863320][ T7314]  ? kernfs_path_from_node+0x250/0x290
[  265.863340][ T7314]  ? kernfs_path_from_node+0x2f/0x290
[  265.863363][ T7314]  sysfs_create_dir_ns+0x259/0x280
[  265.863386][ T7314]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  265.863407][ T7314]  ? do_raw_spin_unlock+0x122/0x240
[  265.863434][ T7314]  kobject_add_internal+0x6ab/0xcc0
[  265.863460][ T7314]  kobject_init_and_add+0x125/0x190
[  265.863492][ T7314]  ? __pfx_kobject_init_and_add+0x10/0x10
[  265.863519][ T7314]  ? __raw_spin_lock_init+0x45/0x100
[  265.863544][ T7314]  ? __init_swait_queue_head+0xa9/0x150
[  265.863571][ T7314]  gfs2_sys_fs_add+0x234/0x450
[  265.863597][ T7314]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  265.863628][ T7314]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  265.863676][ T7314]  gfs2_fill_super+0x1388/0x21b0
[  265.863708][ T7314]  ? __pfx_gfs2_fill_super+0x10/0x10
[  265.863730][ T7314]  ? sb_set_blocksize+0x155/0x240
[  265.863755][ T7314]  ? setup_bdev_super+0x4c1/0x5b0
[  265.863777][ T7314]  get_tree_bdev_flags+0x40e/0x4d0
[  265.863796][ T7314]  ? __pfx_gfs2_fill_super+0x10/0x10
[  265.863823][ T7314]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  265.863840][ T7314]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  265.863876][ T7314]  gfs2_get_tree+0x51/0x1e0
[  265.863897][ T7314]  vfs_get_tree+0x92/0x2a0
[  265.863918][ T7314]  do_new_mount+0x302/0xa10
[  265.863938][ T7314]  ? apparmor_capable+0x137/0x1a0
[  265.863962][ T7314]  ? __pfx_do_new_mount+0x10/0x10
[  265.863984][ T7314]  ? ns_capable+0x8a/0xf0
[  265.864006][ T7314]  ? kmem_cache_free+0x197/0x620
[  265.864034][ T7314]  __se_sys_mount+0x313/0x410
[  265.864062][ T7314]  ? __pfx___se_sys_mount+0x10/0x10
[  265.864089][ T7314]  ? do_syscall_64+0xbe/0xf80
[  265.864110][ T7314]  ? __x64_sys_mount+0x20/0xc0
[  265.864135][ T7314]  do_syscall_64+0xfa/0xf80
[  265.864158][ T7314]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  265.864176][ T7314]  ? clear_bhb_loop+0x60/0xb0
[  265.864197][ T7314]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  265.864213][ T7314] RIP: 0033:0x7fe31c99038a
[  265.864231][ T7314] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  265.864245][ T7314] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  265.864264][ T7314] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  265.864277][ T7314] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  265.864289][ T7314] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  265.864300][ T7314] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  265.864311][ T7314] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  265.864341][ T7314]  </TASK>
[  265.864366][ T7314] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  266.187349][ T7314] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  266.617813][ T7318] loop1: detected capacity change from 0 to 32768
[  266.632545][ T7318] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  266.648905][ T7318] CPU: 1 UID: 0 PID: 7318 Comm: syz.1.182 Not tainted syzkaller #0 PREEMPT(full) 
[  266.648932][ T7318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  266.648942][ T7318] Call Trace:
[  266.648950][ T7318]  <TASK>
[  266.648958][ T7318]  dump_stack_lvl+0x189/0x250
[  266.648988][ T7318]  ? __pfx_dump_stack_lvl+0x10/0x10
[  266.649009][ T7318]  ? __pfx__printk+0x10/0x10
[  266.649037][ T7318]  ? kernfs_path_from_node+0x250/0x290
[  266.649056][ T7318]  ? kernfs_path_from_node+0x2f/0x290
[  266.649078][ T7318]  sysfs_create_dir_ns+0x259/0x280
[  266.649100][ T7318]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  266.649121][ T7318]  ? do_raw_spin_unlock+0x122/0x240
[  266.649149][ T7318]  kobject_add_internal+0x6ab/0xcc0
[  266.649175][ T7318]  kobject_init_and_add+0x125/0x190
[  266.649205][ T7318]  ? __pfx_kobject_init_and_add+0x10/0x10
[  266.649231][ T7318]  ? __raw_spin_lock_init+0x45/0x100
[  266.649256][ T7318]  ? __init_swait_queue_head+0xa9/0x150
[  266.649283][ T7318]  gfs2_sys_fs_add+0x234/0x450
[  266.649309][ T7318]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  266.649339][ T7318]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  266.649378][ T7318]  gfs2_fill_super+0x1388/0x21b0
[  266.649415][ T7318]  ? __pfx_gfs2_fill_super+0x10/0x10
[  266.649440][ T7318]  ? sb_set_blocksize+0x155/0x240
[  266.649467][ T7318]  ? setup_bdev_super+0x4c1/0x5b0
[  266.649489][ T7318]  get_tree_bdev_flags+0x40e/0x4d0
[  266.649508][ T7318]  ? __pfx_gfs2_fill_super+0x10/0x10
[  266.649527][ T7318]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  266.649543][ T7318]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  266.649606][ T7318]  gfs2_get_tree+0x51/0x1e0
[  266.649629][ T7318]  vfs_get_tree+0x92/0x2a0
[  266.649651][ T7318]  do_new_mount+0x302/0xa10
[  266.649672][ T7318]  ? apparmor_capable+0x137/0x1a0
[  266.649695][ T7318]  ? __pfx_do_new_mount+0x10/0x10
[  266.649717][ T7318]  ? ns_capable+0x8a/0xf0
[  266.649739][ T7318]  ? kmem_cache_free+0x197/0x620
[  266.649770][ T7318]  __se_sys_mount+0x313/0x410
[  266.649800][ T7318]  ? __pfx___se_sys_mount+0x10/0x10
[  266.649827][ T7318]  ? do_syscall_64+0xbe/0xf80
[  266.649847][ T7318]  ? __x64_sys_mount+0x20/0xc0
[  266.649871][ T7318]  do_syscall_64+0xfa/0xf80
[  266.649893][ T7318]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  266.649911][ T7318]  ? clear_bhb_loop+0x60/0xb0
[  266.649933][ T7318]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  266.649949][ T7318] RIP: 0033:0x7fe31c99038a
[  266.649968][ T7318] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  266.649982][ T7318] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  266.650001][ T7318] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  266.650013][ T7318] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  266.650024][ T7318] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  266.650035][ T7318] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  266.650047][ T7318] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  266.650078][ T7318]  </TASK>
[  266.650105][ T7318] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  266.969471][ T7318] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  267.306644][ T7322] loop1: detected capacity change from 0 to 32768
[  267.320174][ T7322] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  267.327587][ T7322] CPU: 1 UID: 0 PID: 7322 Comm: syz.1.183 Not tainted syzkaller #0 PREEMPT(full) 
[  267.327607][ T7322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  267.327616][ T7322] Call Trace:
[  267.327623][ T7322]  <TASK>
[  267.327629][ T7322]  dump_stack_lvl+0x189/0x250
[  267.327659][ T7322]  ? __pfx_dump_stack_lvl+0x10/0x10
[  267.327678][ T7322]  ? __pfx__printk+0x10/0x10
[  267.327696][ T7322]  ? kernfs_path_from_node+0x250/0x290
[  267.327708][ T7322]  ? kernfs_path_from_node+0x2f/0x290
[  267.327721][ T7322]  sysfs_create_dir_ns+0x259/0x280
[  267.327734][ T7322]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  267.327746][ T7322]  ? do_raw_spin_unlock+0x122/0x240
[  267.327763][ T7322]  kobject_add_internal+0x6ab/0xcc0
[  267.327780][ T7322]  kobject_init_and_add+0x125/0x190
[  267.327798][ T7322]  ? __pfx_kobject_init_and_add+0x10/0x10
[  267.327813][ T7322]  ? __raw_spin_lock_init+0x45/0x100
[  267.327828][ T7322]  ? __init_swait_queue_head+0xa9/0x150
[  267.327844][ T7322]  gfs2_sys_fs_add+0x234/0x450
[  267.327860][ T7322]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  267.327878][ T7322]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  267.327900][ T7322]  gfs2_fill_super+0x1388/0x21b0
[  267.327919][ T7322]  ? __pfx_gfs2_fill_super+0x10/0x10
[  267.327932][ T7322]  ? sb_set_blocksize+0x155/0x240
[  267.327948][ T7322]  ? setup_bdev_super+0x4c1/0x5b0
[  267.327961][ T7322]  get_tree_bdev_flags+0x40e/0x4d0
[  267.327971][ T7322]  ? __pfx_gfs2_fill_super+0x10/0x10
[  267.327982][ T7322]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  267.327991][ T7322]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  267.328012][ T7322]  gfs2_get_tree+0x51/0x1e0
[  267.328025][ T7322]  vfs_get_tree+0x92/0x2a0
[  267.328037][ T7322]  do_new_mount+0x302/0xa10
[  267.328049][ T7322]  ? apparmor_capable+0x137/0x1a0
[  267.328062][ T7322]  ? __pfx_do_new_mount+0x10/0x10
[  267.328074][ T7322]  ? ns_capable+0x8a/0xf0
[  267.328086][ T7322]  ? kmem_cache_free+0x197/0x620
[  267.328103][ T7322]  __se_sys_mount+0x313/0x410
[  267.328119][ T7322]  ? __pfx___se_sys_mount+0x10/0x10
[  267.328134][ T7322]  ? do_syscall_64+0xbe/0xf80
[  267.328146][ T7322]  ? __x64_sys_mount+0x20/0xc0
[  267.328160][ T7322]  do_syscall_64+0xfa/0xf80
[  267.328173][ T7322]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  267.328182][ T7322]  ? clear_bhb_loop+0x60/0xb0
[  267.328194][ T7322]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  267.328204][ T7322] RIP: 0033:0x7fe31c99038a
[  267.328215][ T7322] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  267.328224][ T7322] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  267.328235][ T7322] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  267.328242][ T7322] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  267.328249][ T7322] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  267.328255][ T7322] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  267.328261][ T7322] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  267.328277][ T7322]  </TASK>
[  267.328293][ T7322] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  267.647314][ T7322] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  267.976661][ T7326] loop1: detected capacity change from 0 to 32768
[  268.008004][ T7326] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  268.015876][ T7326] CPU: 0 UID: 0 PID: 7326 Comm: syz.1.184 Not tainted syzkaller #0 PREEMPT(full) 
[  268.015898][ T7326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  268.015908][ T7326] Call Trace:
[  268.015915][ T7326]  <TASK>
[  268.015922][ T7326]  dump_stack_lvl+0x189/0x250
[  268.015954][ T7326]  ? __pfx_dump_stack_lvl+0x10/0x10
[  268.015974][ T7326]  ? __pfx__printk+0x10/0x10
[  268.016002][ T7326]  ? kernfs_path_from_node+0x250/0x290
[  268.016021][ T7326]  ? kernfs_path_from_node+0x2f/0x290
[  268.016034][ T7326]  sysfs_create_dir_ns+0x259/0x280
[  268.016047][ T7326]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  268.016059][ T7326]  ? do_raw_spin_unlock+0x122/0x240
[  268.016076][ T7326]  kobject_add_internal+0x6ab/0xcc0
[  268.016090][ T7326]  kobject_init_and_add+0x125/0x190
[  268.016109][ T7326]  ? __pfx_kobject_init_and_add+0x10/0x10
[  268.016124][ T7326]  ? __raw_spin_lock_init+0x45/0x100
[  268.016138][ T7326]  ? __init_swait_queue_head+0xa9/0x150
[  268.016154][ T7326]  gfs2_sys_fs_add+0x234/0x450
[  268.016170][ T7326]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  268.016188][ T7326]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  268.016209][ T7326]  gfs2_fill_super+0x1388/0x21b0
[  268.016229][ T7326]  ? __pfx_gfs2_fill_super+0x10/0x10
[  268.016242][ T7326]  ? sb_set_blocksize+0x155/0x240
[  268.016258][ T7326]  ? setup_bdev_super+0x4c1/0x5b0
[  268.016271][ T7326]  get_tree_bdev_flags+0x40e/0x4d0
[  268.016281][ T7326]  ? __pfx_gfs2_fill_super+0x10/0x10
[  268.016292][ T7326]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  268.016301][ T7326]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  268.016322][ T7326]  gfs2_get_tree+0x51/0x1e0
[  268.016335][ T7326]  vfs_get_tree+0x92/0x2a0
[  268.016347][ T7326]  do_new_mount+0x302/0xa10
[  268.016359][ T7326]  ? apparmor_capable+0x137/0x1a0
[  268.016372][ T7326]  ? __pfx_do_new_mount+0x10/0x10
[  268.016384][ T7326]  ? ns_capable+0x8a/0xf0
[  268.016396][ T7326]  ? kmem_cache_free+0x197/0x620
[  268.016413][ T7326]  __se_sys_mount+0x313/0x410
[  268.016429][ T7326]  ? __pfx___se_sys_mount+0x10/0x10
[  268.016444][ T7326]  ? do_syscall_64+0xbe/0xf80
[  268.016456][ T7326]  ? __x64_sys_mount+0x20/0xc0
[  268.016470][ T7326]  do_syscall_64+0xfa/0xf80
[  268.016485][ T7326]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  268.016495][ T7326]  ? clear_bhb_loop+0x60/0xb0
[  268.016507][ T7326]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  268.016516][ T7326] RIP: 0033:0x7fe31c99038a
[  268.016528][ T7326] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  268.016536][ T7326] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  268.016548][ T7326] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  268.016555][ T7326] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  268.016561][ T7326] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  268.016567][ T7326] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  268.016574][ T7326] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  268.016590][ T7326]  </TASK>
[  268.017240][ T7326] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  268.337107][ T7326] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/03 19:54:20 executed programs: 170
[  268.676429][ T7330] loop1: detected capacity change from 0 to 32768
[  268.727269][ T7330] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  268.735562][ T7330] CPU: 0 UID: 0 PID: 7330 Comm: syz.1.185 Not tainted syzkaller #0 PREEMPT(full) 
[  268.735586][ T7330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  268.735596][ T7330] Call Trace:
[  268.735604][ T7330]  <TASK>
[  268.735611][ T7330]  dump_stack_lvl+0x189/0x250
[  268.735640][ T7330]  ? __pfx_dump_stack_lvl+0x10/0x10
[  268.735661][ T7330]  ? __pfx__printk+0x10/0x10
[  268.735691][ T7330]  ? kernfs_path_from_node+0x250/0x290
[  268.735711][ T7330]  ? kernfs_path_from_node+0x2f/0x290
[  268.735733][ T7330]  sysfs_create_dir_ns+0x259/0x280
[  268.735756][ T7330]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  268.735777][ T7330]  ? do_raw_spin_unlock+0x122/0x240
[  268.735804][ T7330]  kobject_add_internal+0x6ab/0xcc0
[  268.735830][ T7330]  kobject_init_and_add+0x125/0x190
[  268.735862][ T7330]  ? __pfx_kobject_init_and_add+0x10/0x10
[  268.735885][ T7330]  ? __raw_spin_lock_init+0x45/0x100
[  268.735908][ T7330]  ? __init_swait_queue_head+0xa9/0x150
[  268.735935][ T7330]  gfs2_sys_fs_add+0x234/0x450
[  268.735959][ T7330]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  268.735990][ T7330]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  268.736028][ T7330]  gfs2_fill_super+0x1388/0x21b0
[  268.736063][ T7330]  ? __pfx_gfs2_fill_super+0x10/0x10
[  268.736087][ T7330]  ? sb_set_blocksize+0x155/0x240
[  268.736113][ T7330]  ? setup_bdev_super+0x4c1/0x5b0
[  268.736136][ T7330]  get_tree_bdev_flags+0x40e/0x4d0
[  268.736155][ T7330]  ? __pfx_gfs2_fill_super+0x10/0x10
[  268.736174][ T7330]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  268.736191][ T7330]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  268.736227][ T7330]  gfs2_get_tree+0x51/0x1e0
[  268.736249][ T7330]  vfs_get_tree+0x92/0x2a0
[  268.736269][ T7330]  do_new_mount+0x302/0xa10
[  268.736289][ T7330]  ? apparmor_capable+0x137/0x1a0
[  268.736313][ T7330]  ? __pfx_do_new_mount+0x10/0x10
[  268.736332][ T7330]  ? ns_capable+0x8a/0xf0
[  268.736352][ T7330]  ? kmem_cache_free+0x197/0x620
[  268.736380][ T7330]  __se_sys_mount+0x313/0x410
[  268.736414][ T7330]  ? __pfx___se_sys_mount+0x10/0x10
[  268.736440][ T7330]  ? do_syscall_64+0xbe/0xf80
[  268.736460][ T7330]  ? __x64_sys_mount+0x20/0xc0
[  268.736485][ T7330]  do_syscall_64+0xfa/0xf80
[  268.736507][ T7330]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  268.736523][ T7330]  ? clear_bhb_loop+0x60/0xb0
[  268.736543][ T7330]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  268.736559][ T7330] RIP: 0033:0x7fe31c99038a
[  268.736576][ T7330] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  268.736590][ T7330] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  268.736607][ T7330] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  268.736620][ T7330] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  268.736632][ T7330] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  268.736642][ T7330] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  268.736653][ T7330] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  268.736682][ T7330]  </TASK>
[  268.748922][ T7330] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  269.060559][ T7330] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  269.395999][ T7334] loop1: detected capacity change from 0 to 32768
[  269.409119][ T7334] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  269.424016][ T7334] CPU: 0 UID: 0 PID: 7334 Comm: syz.1.186 Not tainted syzkaller #0 PREEMPT(full) 
[  269.424040][ T7334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  269.424051][ T7334] Call Trace:
[  269.424059][ T7334]  <TASK>
[  269.424067][ T7334]  dump_stack_lvl+0x189/0x250
[  269.424097][ T7334]  ? __pfx_dump_stack_lvl+0x10/0x10
[  269.424118][ T7334]  ? __pfx__printk+0x10/0x10
[  269.424147][ T7334]  ? kernfs_path_from_node+0x250/0x290
[  269.424167][ T7334]  ? kernfs_path_from_node+0x2f/0x290
[  269.424190][ T7334]  sysfs_create_dir_ns+0x259/0x280
[  269.424212][ T7334]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  269.424233][ T7334]  ? do_raw_spin_unlock+0x122/0x240
[  269.424259][ T7334]  kobject_add_internal+0x6ab/0xcc0
[  269.424281][ T7334]  kobject_init_and_add+0x125/0x190
[  269.424313][ T7334]  ? __pfx_kobject_init_and_add+0x10/0x10
[  269.424340][ T7334]  ? __raw_spin_lock_init+0x45/0x100
[  269.424366][ T7334]  ? __init_swait_queue_head+0xa9/0x150
[  269.424394][ T7334]  gfs2_sys_fs_add+0x234/0x450
[  269.424420][ T7334]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  269.424451][ T7334]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  269.424487][ T7334]  gfs2_fill_super+0x1388/0x21b0
[  269.424530][ T7334]  ? __pfx_gfs2_fill_super+0x10/0x10
[  269.424555][ T7334]  ? sb_set_blocksize+0x155/0x240
[  269.424580][ T7334]  ? setup_bdev_super+0x4c1/0x5b0
[  269.424603][ T7334]  get_tree_bdev_flags+0x40e/0x4d0
[  269.424622][ T7334]  ? __pfx_gfs2_fill_super+0x10/0x10
[  269.424641][ T7334]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  269.424657][ T7334]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  269.424693][ T7334]  gfs2_get_tree+0x51/0x1e0
[  269.424716][ T7334]  vfs_get_tree+0x92/0x2a0
[  269.424738][ T7334]  do_new_mount+0x302/0xa10
[  269.424759][ T7334]  ? apparmor_capable+0x137/0x1a0
[  269.424781][ T7334]  ? __pfx_do_new_mount+0x10/0x10
[  269.424803][ T7334]  ? ns_capable+0x8a/0xf0
[  269.424825][ T7334]  ? kmem_cache_free+0x197/0x620
[  269.424856][ T7334]  __se_sys_mount+0x313/0x410
[  269.424884][ T7334]  ? __pfx___se_sys_mount+0x10/0x10
[  269.424912][ T7334]  ? do_syscall_64+0xbe/0xf80
[  269.424933][ T7334]  ? __x64_sys_mount+0x20/0xc0
[  269.424956][ T7334]  do_syscall_64+0xfa/0xf80
[  269.424979][ T7334]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  269.424995][ T7334]  ? clear_bhb_loop+0x60/0xb0
[  269.425016][ T7334]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  269.425032][ T7334] RIP: 0033:0x7fe31c99038a
[  269.425049][ T7334] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  269.425063][ T7334] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  269.425082][ T7334] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  269.425095][ T7334] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  269.425106][ T7334] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  269.425117][ T7334] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  269.425128][ T7334] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  269.425159][ T7334]  </TASK>
[  269.425184][ T7334] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  269.746125][ T7334] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.083458][ T7338] loop1: detected capacity change from 0 to 32768
[  270.093042][ T7338] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.106115][ T7338] CPU: 1 UID: 0 PID: 7338 Comm: syz.1.187 Not tainted syzkaller #0 PREEMPT(full) 
[  270.106141][ T7338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  270.106152][ T7338] Call Trace:
[  270.106160][ T7338]  <TASK>
[  270.106168][ T7338]  dump_stack_lvl+0x189/0x250
[  270.106209][ T7338]  ? __pfx_dump_stack_lvl+0x10/0x10
[  270.106230][ T7338]  ? __pfx__printk+0x10/0x10
[  270.106260][ T7338]  ? kernfs_path_from_node+0x250/0x290
[  270.106280][ T7338]  ? kernfs_path_from_node+0x2f/0x290
[  270.106303][ T7338]  sysfs_create_dir_ns+0x259/0x280
[  270.106325][ T7338]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  270.106347][ T7338]  ? do_raw_spin_unlock+0x122/0x240
[  270.106376][ T7338]  kobject_add_internal+0x6ab/0xcc0
[  270.106401][ T7338]  kobject_init_and_add+0x125/0x190
[  270.106432][ T7338]  ? __pfx_kobject_init_and_add+0x10/0x10
[  270.106459][ T7338]  ? __raw_spin_lock_init+0x45/0x100
[  270.106483][ T7338]  ? __init_swait_queue_head+0xa9/0x150
[  270.106511][ T7338]  gfs2_sys_fs_add+0x234/0x450
[  270.106537][ T7338]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  270.106570][ T7338]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  270.106608][ T7338]  gfs2_fill_super+0x1388/0x21b0
[  270.106643][ T7338]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.106668][ T7338]  ? sb_set_blocksize+0x155/0x240
[  270.106695][ T7338]  ? setup_bdev_super+0x4c1/0x5b0
[  270.106717][ T7338]  get_tree_bdev_flags+0x40e/0x4d0
[  270.106734][ T7338]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.106754][ T7338]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  270.106771][ T7338]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  270.106807][ T7338]  gfs2_get_tree+0x51/0x1e0
[  270.106831][ T7338]  vfs_get_tree+0x92/0x2a0
[  270.106853][ T7338]  do_new_mount+0x302/0xa10
[  270.106874][ T7338]  ? apparmor_capable+0x137/0x1a0
[  270.106897][ T7338]  ? __pfx_do_new_mount+0x10/0x10
[  270.106918][ T7338]  ? ns_capable+0x8a/0xf0
[  270.106939][ T7338]  ? kmem_cache_free+0x197/0x620
[  270.106969][ T7338]  __se_sys_mount+0x313/0x410
[  270.106998][ T7338]  ? __pfx___se_sys_mount+0x10/0x10
[  270.107023][ T7338]  ? do_syscall_64+0xbe/0xf80
[  270.107042][ T7338]  ? __x64_sys_mount+0x20/0xc0
[  270.107065][ T7338]  do_syscall_64+0xfa/0xf80
[  270.107087][ T7338]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.107103][ T7338]  ? clear_bhb_loop+0x60/0xb0
[  270.107123][ T7338]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.107139][ T7338] RIP: 0033:0x7fe31c99038a
[  270.107156][ T7338] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  270.107171][ T7338] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.107190][ T7338] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  270.107208][ T7338] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  270.107221][ T7338] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  270.107232][ T7338] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  270.107244][ T7338] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  270.107274][ T7338]  </TASK>
[  270.107782][ T7338] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.426630][ T7338] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.768161][ T7342] loop1: detected capacity change from 0 to 32768
[  270.802835][ T7342] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.810620][ T7342] CPU: 0 UID: 0 PID: 7342 Comm: syz.1.188 Not tainted syzkaller #0 PREEMPT(full) 
[  270.810647][ T7342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  270.810658][ T7342] Call Trace:
[  270.810666][ T7342]  <TASK>
[  270.810674][ T7342]  dump_stack_lvl+0x189/0x250
[  270.810706][ T7342]  ? __pfx_dump_stack_lvl+0x10/0x10
[  270.810726][ T7342]  ? __pfx__printk+0x10/0x10
[  270.810756][ T7342]  ? kernfs_path_from_node+0x250/0x290
[  270.810775][ T7342]  ? kernfs_path_from_node+0x2f/0x290
[  270.810800][ T7342]  sysfs_create_dir_ns+0x259/0x280
[  270.810824][ T7342]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  270.810846][ T7342]  ? do_raw_spin_unlock+0x122/0x240
[  270.810875][ T7342]  kobject_add_internal+0x6ab/0xcc0
[  270.810901][ T7342]  kobject_init_and_add+0x125/0x190
[  270.810931][ T7342]  ? __pfx_kobject_init_and_add+0x10/0x10
[  270.810956][ T7342]  ? __raw_spin_lock_init+0x45/0x100
[  270.810981][ T7342]  ? __init_swait_queue_head+0xa9/0x150
[  270.811009][ T7342]  gfs2_sys_fs_add+0x234/0x450
[  270.811037][ T7342]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  270.811070][ T7342]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  270.811107][ T7342]  gfs2_fill_super+0x1388/0x21b0
[  270.811141][ T7342]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.811175][ T7342]  ? sb_set_blocksize+0x155/0x240
[  270.811202][ T7342]  ? setup_bdev_super+0x4c1/0x5b0
[  270.811226][ T7342]  get_tree_bdev_flags+0x40e/0x4d0
[  270.811245][ T7342]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.811265][ T7342]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  270.811282][ T7342]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  270.811318][ T7342]  gfs2_get_tree+0x51/0x1e0
[  270.811340][ T7342]  vfs_get_tree+0x92/0x2a0
[  270.811363][ T7342]  do_new_mount+0x302/0xa10
[  270.811383][ T7342]  ? apparmor_capable+0x137/0x1a0
[  270.811408][ T7342]  ? __pfx_do_new_mount+0x10/0x10
[  270.811430][ T7342]  ? ns_capable+0x8a/0xf0
[  270.811452][ T7342]  ? kmem_cache_free+0x197/0x620
[  270.811483][ T7342]  __se_sys_mount+0x313/0x410
[  270.811511][ T7342]  ? __pfx___se_sys_mount+0x10/0x10
[  270.811538][ T7342]  ? do_syscall_64+0xbe/0xf80
[  270.811559][ T7342]  ? __x64_sys_mount+0x20/0xc0
[  270.811584][ T7342]  do_syscall_64+0xfa/0xf80
[  270.811607][ T7342]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.811625][ T7342]  ? clear_bhb_loop+0x60/0xb0
[  270.811647][ T7342]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.811663][ T7342] RIP: 0033:0x7fe31c99038a
[  270.811680][ T7342] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  270.811694][ T7342] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.811712][ T7342] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  270.811725][ T7342] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  270.811737][ T7342] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  270.811748][ T7342] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  270.811759][ T7342] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  270.811791][ T7342]  </TASK>
[  270.811816][ T7342] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  271.130902][ T7342] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  271.468530][ T7346] loop1: detected capacity change from 0 to 32768
[  271.482183][ T7346] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  271.497294][ T7346] CPU: 1 UID: 0 PID: 7346 Comm: syz.1.189 Not tainted syzkaller #0 PREEMPT(full) 
[  271.497326][ T7346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  271.497336][ T7346] Call Trace:
[  271.497344][ T7346]  <TASK>
[  271.497352][ T7346]  dump_stack_lvl+0x189/0x250
[  271.497383][ T7346]  ? __pfx_dump_stack_lvl+0x10/0x10
[  271.497404][ T7346]  ? __pfx__printk+0x10/0x10
[  271.497433][ T7346]  ? kernfs_path_from_node+0x250/0x290
[  271.497452][ T7346]  ? kernfs_path_from_node+0x2f/0x290
[  271.497475][ T7346]  sysfs_create_dir_ns+0x259/0x280
[  271.497499][ T7346]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  271.497521][ T7346]  ? do_raw_spin_unlock+0x122/0x240
[  271.497550][ T7346]  kobject_add_internal+0x6ab/0xcc0
[  271.497577][ T7346]  kobject_init_and_add+0x125/0x190
[  271.497608][ T7346]  ? __pfx_kobject_init_and_add+0x10/0x10
[  271.497633][ T7346]  ? __raw_spin_lock_init+0x45/0x100
[  271.497656][ T7346]  ? __init_swait_queue_head+0xa9/0x150
[  271.497684][ T7346]  gfs2_sys_fs_add+0x234/0x450
[  271.497708][ T7346]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  271.497738][ T7346]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  271.497776][ T7346]  gfs2_fill_super+0x1388/0x21b0
[  271.497810][ T7346]  ? __pfx_gfs2_fill_super+0x10/0x10
[  271.497834][ T7346]  ? sb_set_blocksize+0x155/0x240
[  271.497859][ T7346]  ? setup_bdev_super+0x4c1/0x5b0
[  271.497882][ T7346]  get_tree_bdev_flags+0x40e/0x4d0
[  271.497901][ T7346]  ? __pfx_gfs2_fill_super+0x10/0x10
[  271.497919][ T7346]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  271.497936][ T7346]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  271.497973][ T7346]  gfs2_get_tree+0x51/0x1e0
[  271.497994][ T7346]  vfs_get_tree+0x92/0x2a0
[  271.498015][ T7346]  do_new_mount+0x302/0xa10
[  271.498036][ T7346]  ? apparmor_capable+0x137/0x1a0
[  271.498058][ T7346]  ? __pfx_do_new_mount+0x10/0x10
[  271.498081][ T7346]  ? ns_capable+0x8a/0xf0
[  271.498103][ T7346]  ? kmem_cache_free+0x197/0x620
[  271.498134][ T7346]  __se_sys_mount+0x313/0x410
[  271.498162][ T7346]  ? __pfx___se_sys_mount+0x10/0x10
[  271.498188][ T7346]  ? do_syscall_64+0xbe/0xf80
[  271.498209][ T7346]  ? __x64_sys_mount+0x20/0xc0
[  271.498232][ T7346]  do_syscall_64+0xfa/0xf80
[  271.498254][ T7346]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  271.498271][ T7346]  ? clear_bhb_loop+0x60/0xb0
[  271.498292][ T7346]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  271.498317][ T7346] RIP: 0033:0x7fe31c99038a
[  271.498335][ T7346] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  271.498348][ T7346] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  271.498367][ T7346] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  271.498379][ T7346] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  271.498391][ T7346] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  271.498402][ T7346] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  271.498413][ T7346] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  271.498442][ T7346]  </TASK>
[  271.498467][ T7346] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  271.817862][ T7346] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  272.161396][ T7350] loop1: detected capacity change from 0 to 32768
[  272.174887][ T7350] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.182544][ T7350] CPU: 0 UID: 0 PID: 7350 Comm: syz.1.190 Not tainted syzkaller #0 PREEMPT(full) 
[  272.182568][ T7350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  272.182579][ T7350] Call Trace:
[  272.182586][ T7350]  <TASK>
[  272.182594][ T7350]  dump_stack_lvl+0x189/0x250
[  272.182622][ T7350]  ? __pfx_dump_stack_lvl+0x10/0x10
[  272.182642][ T7350]  ? __pfx__printk+0x10/0x10
[  272.182672][ T7350]  ? kernfs_path_from_node+0x250/0x290
[  272.182691][ T7350]  ? kernfs_path_from_node+0x2f/0x290
[  272.182714][ T7350]  sysfs_create_dir_ns+0x259/0x280
[  272.182738][ T7350]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  272.182760][ T7350]  ? do_raw_spin_unlock+0x122/0x240
[  272.182789][ T7350]  kobject_add_internal+0x6ab/0xcc0
[  272.182814][ T7350]  kobject_init_and_add+0x125/0x190
[  272.182845][ T7350]  ? __pfx_kobject_init_and_add+0x10/0x10
[  272.182871][ T7350]  ? __raw_spin_lock_init+0x45/0x100
[  272.182895][ T7350]  ? __init_swait_queue_head+0xa9/0x150
[  272.182924][ T7350]  gfs2_sys_fs_add+0x234/0x450
[  272.182951][ T7350]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  272.182984][ T7350]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  272.183030][ T7350]  gfs2_fill_super+0x1388/0x21b0
[  272.183065][ T7350]  ? __pfx_gfs2_fill_super+0x10/0x10
[  272.183089][ T7350]  ? sb_set_blocksize+0x155/0x240
[  272.183115][ T7350]  ? setup_bdev_super+0x4c1/0x5b0
[  272.183138][ T7350]  get_tree_bdev_flags+0x40e/0x4d0
[  272.183156][ T7350]  ? __pfx_gfs2_fill_super+0x10/0x10
[  272.183174][ T7350]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  272.183191][ T7350]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  272.183225][ T7350]  gfs2_get_tree+0x51/0x1e0
[  272.183247][ T7350]  vfs_get_tree+0x92/0x2a0
[  272.183267][ T7350]  do_new_mount+0x302/0xa10
[  272.183288][ T7350]  ? apparmor_capable+0x137/0x1a0
[  272.183312][ T7350]  ? __pfx_do_new_mount+0x10/0x10
[  272.183332][ T7350]  ? ns_capable+0x8a/0xf0
[  272.183353][ T7350]  ? kmem_cache_free+0x197/0x620
[  272.183382][ T7350]  __se_sys_mount+0x313/0x410
[  272.183411][ T7350]  ? __pfx___se_sys_mount+0x10/0x10
[  272.183438][ T7350]  ? do_syscall_64+0xbe/0xf80
[  272.183458][ T7350]  ? __x64_sys_mount+0x20/0xc0
[  272.183481][ T7350]  do_syscall_64+0xfa/0xf80
[  272.183501][ T7350]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  272.183519][ T7350]  ? clear_bhb_loop+0x60/0xb0
[  272.183539][ T7350]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  272.183553][ T7350] RIP: 0033:0x7fe31c99038a
[  272.183569][ T7350] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  272.183583][ T7350] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.183601][ T7350] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  272.183612][ T7350] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  272.183623][ T7350] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  272.183633][ T7350] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  272.183644][ T7350] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  272.183672][ T7350]  </TASK>
[  272.184161][ T7350] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  272.503884][ T7350] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  272.843282][ T7354] loop1: detected capacity change from 0 to 32768
[  272.872126][ T7354] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.879686][ T7354] CPU: 1 UID: 0 PID: 7354 Comm: syz.1.191 Not tainted syzkaller #0 PREEMPT(full) 
[  272.879709][ T7354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  272.879720][ T7354] Call Trace:
[  272.879727][ T7354]  <TASK>
[  272.879736][ T7354]  dump_stack_lvl+0x189/0x250
[  272.879766][ T7354]  ? __pfx_dump_stack_lvl+0x10/0x10
[  272.879787][ T7354]  ? __pfx__printk+0x10/0x10
[  272.879816][ T7354]  ? kernfs_path_from_node+0x250/0x290
[  272.879836][ T7354]  ? kernfs_path_from_node+0x2f/0x290
[  272.879859][ T7354]  sysfs_create_dir_ns+0x259/0x280
[  272.879880][ T7354]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  272.879899][ T7354]  ? do_raw_spin_unlock+0x122/0x240
[  272.879927][ T7354]  kobject_add_internal+0x6ab/0xcc0
[  272.879972][ T7354]  kobject_init_and_add+0x125/0x190
[  272.880003][ T7354]  ? __pfx_kobject_init_and_add+0x10/0x10
[  272.880030][ T7354]  ? __raw_spin_lock_init+0x45/0x100
[  272.880053][ T7354]  ? __init_swait_queue_head+0xa9/0x150
[  272.880080][ T7354]  gfs2_sys_fs_add+0x234/0x450
[  272.880106][ T7354]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  272.880136][ T7354]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  272.880180][ T7354]  gfs2_fill_super+0x1388/0x21b0
[  272.880214][ T7354]  ? __pfx_gfs2_fill_super+0x10/0x10
[  272.880239][ T7354]  ? sb_set_blocksize+0x155/0x240
[  272.880265][ T7354]  ? setup_bdev_super+0x4c1/0x5b0
[  272.880288][ T7354]  get_tree_bdev_flags+0x40e/0x4d0
[  272.880312][ T7354]  ? __pfx_gfs2_fill_super+0x10/0x10
[  272.880330][ T7354]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  272.880350][ T7354]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  272.880386][ T7354]  gfs2_get_tree+0x51/0x1e0
[  272.880409][ T7354]  vfs_get_tree+0x92/0x2a0
[  272.880429][ T7354]  do_new_mount+0x302/0xa10
[  272.880449][ T7354]  ? apparmor_capable+0x137/0x1a0
[  272.880472][ T7354]  ? __pfx_do_new_mount+0x10/0x10
[  272.880494][ T7354]  ? ns_capable+0x8a/0xf0
[  272.880517][ T7354]  ? kmem_cache_free+0x197/0x620
[  272.880548][ T7354]  __se_sys_mount+0x313/0x410
[  272.880578][ T7354]  ? __pfx___se_sys_mount+0x10/0x10
[  272.880604][ T7354]  ? do_syscall_64+0xbe/0xf80
[  272.880625][ T7354]  ? __x64_sys_mount+0x20/0xc0
[  272.880648][ T7354]  do_syscall_64+0xfa/0xf80
[  272.880671][ T7354]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  272.880687][ T7354]  ? clear_bhb_loop+0x60/0xb0
[  272.880708][ T7354]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  272.880724][ T7354] RIP: 0033:0x7fe31c99038a
[  272.880741][ T7354] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  272.880756][ T7354] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.880775][ T7354] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  272.880787][ T7354] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  272.880798][ T7354] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  272.880809][ T7354] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  272.880821][ T7354] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  272.880850][ T7354]  </TASK>
[  272.880876][ T7354] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  273.200260][ T7354] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  273.244945][ T5154] Bluetooth: hci1: command 0x0406 tx timeout
[  273.544444][ T7359] loop1: detected capacity change from 0 to 32768
[  273.563105][ T7359] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  273.572456][ T7359] CPU: 0 UID: 0 PID: 7359 Comm: syz.1.192 Not tainted syzkaller #0 PREEMPT(full) 
[  273.572481][ T7359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  273.572491][ T7359] Call Trace:
[  273.572498][ T7359]  <TASK>
[  273.572506][ T7359]  dump_stack_lvl+0x189/0x250
[  273.572536][ T7359]  ? __pfx_dump_stack_lvl+0x10/0x10
[  273.572557][ T7359]  ? __pfx__printk+0x10/0x10
[  273.572589][ T7359]  ? kernfs_path_from_node+0x250/0x290
[  273.572608][ T7359]  ? kernfs_path_from_node+0x2f/0x290
[  273.572632][ T7359]  sysfs_create_dir_ns+0x259/0x280
[  273.572667][ T7359]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  273.572689][ T7359]  ? do_raw_spin_unlock+0x122/0x240
[  273.572716][ T7359]  kobject_add_internal+0x6ab/0xcc0
[  273.572743][ T7359]  kobject_init_and_add+0x125/0x190
[  273.572773][ T7359]  ? __pfx_kobject_init_and_add+0x10/0x10
[  273.572800][ T7359]  ? __raw_spin_lock_init+0x45/0x100
[  273.572833][ T7359]  ? __init_swait_queue_head+0xa9/0x150
[  273.572860][ T7359]  gfs2_sys_fs_add+0x234/0x450
[  273.572887][ T7359]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  273.572920][ T7359]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  273.572959][ T7359]  gfs2_fill_super+0x1388/0x21b0
[  273.572995][ T7359]  ? __pfx_gfs2_fill_super+0x10/0x10
[  273.573019][ T7359]  ? sb_set_blocksize+0x155/0x240
[  273.573045][ T7359]  ? setup_bdev_super+0x4c1/0x5b0
[  273.573066][ T7359]  get_tree_bdev_flags+0x40e/0x4d0
[  273.573085][ T7359]  ? __pfx_gfs2_fill_super+0x10/0x10
[  273.573102][ T7359]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  273.573119][ T7359]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  273.573156][ T7359]  gfs2_get_tree+0x51/0x1e0
[  273.573179][ T7359]  vfs_get_tree+0x92/0x2a0
[  273.573200][ T7359]  do_new_mount+0x302/0xa10
[  273.573220][ T7359]  ? apparmor_capable+0x137/0x1a0
[  273.573244][ T7359]  ? __pfx_do_new_mount+0x10/0x10
[  273.573267][ T7359]  ? ns_capable+0x8a/0xf0
[  273.573289][ T7359]  ? kmem_cache_free+0x197/0x620
[  273.573320][ T7359]  __se_sys_mount+0x313/0x410
[  273.573348][ T7359]  ? __pfx___se_sys_mount+0x10/0x10
[  273.573374][ T7359]  ? do_syscall_64+0xbe/0xf80
[  273.573394][ T7359]  ? __x64_sys_mount+0x20/0xc0
[  273.573417][ T7359]  do_syscall_64+0xfa/0xf80
[  273.573439][ T7359]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  273.573456][ T7359]  ? clear_bhb_loop+0x60/0xb0
[  273.573476][ T7359]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  273.573492][ T7359] RIP: 0033:0x7fe31c99038a
[  273.573509][ T7359] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  273.573524][ T7359] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  273.573543][ T7359] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  273.573555][ T7359] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  273.573566][ T7359] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  273.573577][ T7359] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  273.573588][ T7359] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  273.573618][ T7359]  </TASK>
[  273.573643][ T7359] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  273.891815][ T7359] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/03 19:54:25 executed programs: 178
[  274.230860][ T7363] loop1: detected capacity change from 0 to 32768
[  274.243526][ T7363] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  274.252953][ T7363] CPU: 0 UID: 0 PID: 7363 Comm: syz.1.193 Not tainted syzkaller #0 PREEMPT(full) 
[  274.252977][ T7363] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  274.252988][ T7363] Call Trace:
[  274.252994][ T7363]  <TASK>
[  274.253002][ T7363]  dump_stack_lvl+0x189/0x250
[  274.253033][ T7363]  ? __pfx_dump_stack_lvl+0x10/0x10
[  274.253053][ T7363]  ? __pfx__printk+0x10/0x10
[  274.253084][ T7363]  ? kernfs_path_from_node+0x250/0x290
[  274.253102][ T7363]  ? kernfs_path_from_node+0x2f/0x290
[  274.253123][ T7363]  sysfs_create_dir_ns+0x259/0x280
[  274.253146][ T7363]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  274.253168][ T7363]  ? do_raw_spin_unlock+0x122/0x240
[  274.253197][ T7363]  kobject_add_internal+0x6ab/0xcc0
[  274.253224][ T7363]  kobject_init_and_add+0x125/0x190
[  274.253255][ T7363]  ? __pfx_kobject_init_and_add+0x10/0x10
[  274.253280][ T7363]  ? __raw_spin_lock_init+0x45/0x100
[  274.253304][ T7363]  ? __init_swait_queue_head+0xa9/0x150
[  274.253331][ T7363]  gfs2_sys_fs_add+0x234/0x450
[  274.253357][ T7363]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  274.253388][ T7363]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  274.253422][ T7363]  gfs2_fill_super+0x1388/0x21b0
[  274.253456][ T7363]  ? __pfx_gfs2_fill_super+0x10/0x10
[  274.253480][ T7363]  ? sb_set_blocksize+0x155/0x240
[  274.253506][ T7363]  ? setup_bdev_super+0x4c1/0x5b0
[  274.253527][ T7363]  get_tree_bdev_flags+0x40e/0x4d0
[  274.253546][ T7363]  ? __pfx_gfs2_fill_super+0x10/0x10
[  274.253565][ T7363]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  274.253582][ T7363]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  274.253618][ T7363]  gfs2_get_tree+0x51/0x1e0
[  274.253640][ T7363]  vfs_get_tree+0x92/0x2a0
[  274.253662][ T7363]  do_new_mount+0x302/0xa10
[  274.253682][ T7363]  ? apparmor_capable+0x137/0x1a0
[  274.253704][ T7363]  ? __pfx_do_new_mount+0x10/0x10
[  274.253726][ T7363]  ? ns_capable+0x8a/0xf0
[  274.253757][ T7363]  ? kmem_cache_free+0x197/0x620
[  274.253789][ T7363]  __se_sys_mount+0x313/0x410
[  274.253818][ T7363]  ? __pfx___se_sys_mount+0x10/0x10
[  274.253844][ T7363]  ? do_syscall_64+0xbe/0xf80
[  274.253864][ T7363]  ? __x64_sys_mount+0x20/0xc0
[  274.253888][ T7363]  do_syscall_64+0xfa/0xf80
[  274.253911][ T7363]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  274.253927][ T7363]  ? clear_bhb_loop+0x60/0xb0
[  274.253948][ T7363]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  274.253964][ T7363] RIP: 0033:0x7fe31c99038a
[  274.253981][ T7363] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  274.253995][ T7363] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  274.254012][ T7363] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  274.254025][ T7363] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  274.254036][ T7363] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  274.254047][ T7363] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  274.254059][ T7363] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  274.254089][ T7363]  </TASK>
[  274.254122][ T7363] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  274.572915][ T7363] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  274.912473][ T7367] loop1: detected capacity change from 0 to 32768
[  274.934825][ T7367] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  274.942368][ T7367] CPU: 1 UID: 0 PID: 7367 Comm: syz.1.194 Not tainted syzkaller #0 PREEMPT(full) 
[  274.942393][ T7367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  274.942404][ T7367] Call Trace:
[  274.942412][ T7367]  <TASK>
[  274.942420][ T7367]  dump_stack_lvl+0x189/0x250
[  274.942450][ T7367]  ? __pfx_dump_stack_lvl+0x10/0x10
[  274.942471][ T7367]  ? __pfx__printk+0x10/0x10
[  274.942500][ T7367]  ? kernfs_path_from_node+0x250/0x290
[  274.942520][ T7367]  ? kernfs_path_from_node+0x2f/0x290
[  274.942542][ T7367]  sysfs_create_dir_ns+0x259/0x280
[  274.942565][ T7367]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  274.942587][ T7367]  ? do_raw_spin_unlock+0x122/0x240
[  274.942615][ T7367]  kobject_add_internal+0x6ab/0xcc0
[  274.942640][ T7367]  kobject_init_and_add+0x125/0x190
[  274.942670][ T7367]  ? __pfx_kobject_init_and_add+0x10/0x10
[  274.942695][ T7367]  ? __raw_spin_lock_init+0x45/0x100
[  274.942721][ T7367]  ? __init_swait_queue_head+0xa9/0x150
[  274.942749][ T7367]  gfs2_sys_fs_add+0x234/0x450
[  274.942777][ T7367]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  274.942808][ T7367]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  274.942845][ T7367]  gfs2_fill_super+0x1388/0x21b0
[  274.942880][ T7367]  ? __pfx_gfs2_fill_super+0x10/0x10
[  274.942904][ T7367]  ? sb_set_blocksize+0x155/0x240
[  274.942938][ T7367]  ? setup_bdev_super+0x4c1/0x5b0
[  274.942961][ T7367]  get_tree_bdev_flags+0x40e/0x4d0
[  274.942979][ T7367]  ? __pfx_gfs2_fill_super+0x10/0x10
[  274.942998][ T7367]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  274.943016][ T7367]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  274.943053][ T7367]  gfs2_get_tree+0x51/0x1e0
[  274.943076][ T7367]  vfs_get_tree+0x92/0x2a0
[  274.943099][ T7367]  do_new_mount+0x302/0xa10
[  274.943120][ T7367]  ? apparmor_capable+0x137/0x1a0
[  274.943143][ T7367]  ? __pfx_do_new_mount+0x10/0x10
[  274.943165][ T7367]  ? ns_capable+0x8a/0xf0
[  274.943186][ T7367]  ? kmem_cache_free+0x197/0x620
[  274.943216][ T7367]  __se_sys_mount+0x313/0x410
[  274.943245][ T7367]  ? __pfx___se_sys_mount+0x10/0x10
[  274.943271][ T7367]  ? do_syscall_64+0xbe/0xf80
[  274.943291][ T7367]  ? __x64_sys_mount+0x20/0xc0
[  274.943314][ T7367]  do_syscall_64+0xfa/0xf80
[  274.943338][ T7367]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  274.943356][ T7367]  ? clear_bhb_loop+0x60/0xb0
[  274.943378][ T7367]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  274.943396][ T7367] RIP: 0033:0x7fe31c99038a
[  274.943414][ T7367] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  274.943428][ T7367] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  274.943447][ T7367] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  274.943460][ T7367] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  274.943471][ T7367] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  274.943483][ T7367] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  274.943494][ T7367] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  274.943522][ T7367]  </TASK>
[  274.943547][ T7367] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  275.262507][ T7367] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  275.604712][ T7371] loop1: detected capacity change from 0 to 32768
[  275.620172][ T7371] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  275.629514][ T7371] CPU: 1 UID: 0 PID: 7371 Comm: syz.1.195 Not tainted syzkaller #0 PREEMPT(full) 
[  275.629538][ T7371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  275.629548][ T7371] Call Trace:
[  275.629556][ T7371]  <TASK>
[  275.629564][ T7371]  dump_stack_lvl+0x189/0x250
[  275.629593][ T7371]  ? __pfx_dump_stack_lvl+0x10/0x10
[  275.629614][ T7371]  ? __pfx__printk+0x10/0x10
[  275.629644][ T7371]  ? kernfs_path_from_node+0x250/0x290
[  275.629663][ T7371]  ? kernfs_path_from_node+0x2f/0x290
[  275.629686][ T7371]  sysfs_create_dir_ns+0x259/0x280
[  275.629710][ T7371]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  275.629731][ T7371]  ? do_raw_spin_unlock+0x122/0x240
[  275.629759][ T7371]  kobject_add_internal+0x6ab/0xcc0
[  275.629786][ T7371]  kobject_init_and_add+0x125/0x190
[  275.629818][ T7371]  ? __pfx_kobject_init_and_add+0x10/0x10
[  275.629854][ T7371]  ? __raw_spin_lock_init+0x45/0x100
[  275.629878][ T7371]  ? __init_swait_queue_head+0xa9/0x150
[  275.629906][ T7371]  gfs2_sys_fs_add+0x234/0x450
[  275.629933][ T7371]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  275.629965][ T7371]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  275.630004][ T7371]  gfs2_fill_super+0x1388/0x21b0
[  275.630039][ T7371]  ? __pfx_gfs2_fill_super+0x10/0x10
[  275.630063][ T7371]  ? sb_set_blocksize+0x155/0x240
[  275.630090][ T7371]  ? setup_bdev_super+0x4c1/0x5b0
[  275.630112][ T7371]  get_tree_bdev_flags+0x40e/0x4d0
[  275.630131][ T7371]  ? __pfx_gfs2_fill_super+0x10/0x10
[  275.630150][ T7371]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  275.630168][ T7371]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  275.630205][ T7371]  gfs2_get_tree+0x51/0x1e0
[  275.630227][ T7371]  vfs_get_tree+0x92/0x2a0
[  275.630248][ T7371]  do_new_mount+0x302/0xa10
[  275.630268][ T7371]  ? apparmor_capable+0x137/0x1a0
[  275.630290][ T7371]  ? __pfx_do_new_mount+0x10/0x10
[  275.630310][ T7371]  ? ns_capable+0x8a/0xf0
[  275.630331][ T7371]  ? kmem_cache_free+0x197/0x620
[  275.630360][ T7371]  __se_sys_mount+0x313/0x410
[  275.630387][ T7371]  ? __pfx___se_sys_mount+0x10/0x10
[  275.630411][ T7371]  ? do_syscall_64+0xbe/0xf80
[  275.630431][ T7371]  ? __x64_sys_mount+0x20/0xc0
[  275.630453][ T7371]  do_syscall_64+0xfa/0xf80
[  275.630475][ T7371]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  275.630493][ T7371]  ? clear_bhb_loop+0x60/0xb0
[  275.630515][ T7371]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  275.630532][ T7371] RIP: 0033:0x7fe31c99038a
[  275.630549][ T7371] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  275.630563][ T7371] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  275.630581][ T7371] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  275.630593][ T7371] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  275.630605][ T7371] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  275.630617][ T7371] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  275.630629][ T7371] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  275.630659][ T7371]  </TASK>
[  275.630684][ T7371] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  275.950435][ T7371] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  276.303000][ T7375] loop1: detected capacity change from 0 to 32768
[  276.332941][ T7375] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  276.340497][ T7375] CPU: 1 UID: 0 PID: 7375 Comm: syz.1.196 Not tainted syzkaller #0 PREEMPT(full) 
[  276.340521][ T7375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  276.340531][ T7375] Call Trace:
[  276.340539][ T7375]  <TASK>
[  276.340547][ T7375]  dump_stack_lvl+0x189/0x250
[  276.340577][ T7375]  ? __pfx_dump_stack_lvl+0x10/0x10
[  276.340606][ T7375]  ? __pfx__printk+0x10/0x10
[  276.340635][ T7375]  ? kernfs_path_from_node+0x250/0x290
[  276.340654][ T7375]  ? kernfs_path_from_node+0x2f/0x290
[  276.340676][ T7375]  sysfs_create_dir_ns+0x259/0x280
[  276.340699][ T7375]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  276.340720][ T7375]  ? do_raw_spin_unlock+0x122/0x240
[  276.340747][ T7375]  kobject_add_internal+0x6ab/0xcc0
[  276.340774][ T7375]  kobject_init_and_add+0x125/0x190
[  276.340804][ T7375]  ? __pfx_kobject_init_and_add+0x10/0x10
[  276.340828][ T7375]  ? __raw_spin_lock_init+0x45/0x100
[  276.340850][ T7375]  ? __init_swait_queue_head+0xa9/0x150
[  276.340875][ T7375]  gfs2_sys_fs_add+0x234/0x450
[  276.340898][ T7375]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  276.340928][ T7375]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  276.340965][ T7375]  gfs2_fill_super+0x1388/0x21b0
[  276.341001][ T7375]  ? __pfx_gfs2_fill_super+0x10/0x10
[  276.341025][ T7375]  ? sb_set_blocksize+0x155/0x240
[  276.341051][ T7375]  ? setup_bdev_super+0x4c1/0x5b0
[  276.341075][ T7375]  get_tree_bdev_flags+0x40e/0x4d0
[  276.341094][ T7375]  ? __pfx_gfs2_fill_super+0x10/0x10
[  276.341113][ T7375]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  276.341131][ T7375]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  276.341167][ T7375]  gfs2_get_tree+0x51/0x1e0
[  276.341190][ T7375]  vfs_get_tree+0x92/0x2a0
[  276.341213][ T7375]  do_new_mount+0x302/0xa10
[  276.341234][ T7375]  ? apparmor_capable+0x137/0x1a0
[  276.341257][ T7375]  ? __pfx_do_new_mount+0x10/0x10
[  276.341279][ T7375]  ? ns_capable+0x8a/0xf0
[  276.341300][ T7375]  ? kmem_cache_free+0x197/0x620
[  276.341330][ T7375]  __se_sys_mount+0x313/0x410
[  276.341359][ T7375]  ? __pfx___se_sys_mount+0x10/0x10
[  276.341386][ T7375]  ? do_syscall_64+0xbe/0xf80
[  276.341406][ T7375]  ? __x64_sys_mount+0x20/0xc0
[  276.341430][ T7375]  do_syscall_64+0xfa/0xf80
[  276.341454][ T7375]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  276.341471][ T7375]  ? clear_bhb_loop+0x60/0xb0
[  276.341492][ T7375]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  276.341509][ T7375] RIP: 0033:0x7fe31c99038a
[  276.341527][ T7375] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  276.341541][ T7375] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.341560][ T7375] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  276.341573][ T7375] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  276.341592][ T7375] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  276.341604][ T7375] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  276.341615][ T7375] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  276.341646][ T7375]  </TASK>
[  276.341720][ T7375] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  276.662029][ T7375] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  276.993198][ T7379] loop1: detected capacity change from 0 to 32768
[  277.010910][ T7379] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  277.018339][ T7379] CPU: 1 UID: 0 PID: 7379 Comm: syz.1.197 Not tainted syzkaller #0 PREEMPT(full) 
[  277.018364][ T7379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  277.018376][ T7379] Call Trace:
[  277.018384][ T7379]  <TASK>
[  277.018393][ T7379]  dump_stack_lvl+0x189/0x250
[  277.018424][ T7379]  ? __pfx_dump_stack_lvl+0x10/0x10
[  277.018454][ T7379]  ? __pfx__printk+0x10/0x10
[  277.018483][ T7379]  ? kernfs_path_from_node+0x250/0x290
[  277.018502][ T7379]  ? kernfs_path_from_node+0x2f/0x290
[  277.018524][ T7379]  sysfs_create_dir_ns+0x259/0x280
[  277.018547][ T7379]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  277.018569][ T7379]  ? do_raw_spin_unlock+0x122/0x240
[  277.018595][ T7379]  kobject_add_internal+0x6ab/0xcc0
[  277.018622][ T7379]  kobject_init_and_add+0x125/0x190
[  277.018654][ T7379]  ? __pfx_kobject_init_and_add+0x10/0x10
[  277.018679][ T7379]  ? __raw_spin_lock_init+0x45/0x100
[  277.018702][ T7379]  ? __init_swait_queue_head+0xa9/0x150
[  277.018725][ T7379]  gfs2_sys_fs_add+0x234/0x450
[  277.018749][ T7379]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  277.018782][ T7379]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  277.018818][ T7379]  gfs2_fill_super+0x1388/0x21b0
[  277.018854][ T7379]  ? __pfx_gfs2_fill_super+0x10/0x10
[  277.018877][ T7379]  ? sb_set_blocksize+0x155/0x240
[  277.018903][ T7379]  ? setup_bdev_super+0x4c1/0x5b0
[  277.018925][ T7379]  get_tree_bdev_flags+0x40e/0x4d0
[  277.018945][ T7379]  ? __pfx_gfs2_fill_super+0x10/0x10
[  277.018964][ T7379]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  277.018980][ T7379]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  277.019015][ T7379]  gfs2_get_tree+0x51/0x1e0
[  277.019038][ T7379]  vfs_get_tree+0x92/0x2a0
[  277.019061][ T7379]  do_new_mount+0x302/0xa10
[  277.019082][ T7379]  ? apparmor_capable+0x137/0x1a0
[  277.019106][ T7379]  ? __pfx_do_new_mount+0x10/0x10
[  277.019128][ T7379]  ? ns_capable+0x8a/0xf0
[  277.019149][ T7379]  ? kmem_cache_free+0x197/0x620
[  277.019178][ T7379]  __se_sys_mount+0x313/0x410
[  277.019207][ T7379]  ? __pfx___se_sys_mount+0x10/0x10
[  277.019288][ T7379]  ? do_syscall_64+0xbe/0xf80
[  277.019346][ T7379]  ? __x64_sys_mount+0x20/0xc0
[  277.019372][ T7379]  do_syscall_64+0xfa/0xf80
[  277.019395][ T7379]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  277.019412][ T7379]  ? clear_bhb_loop+0x60/0xb0
[  277.019442][ T7379]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  277.019459][ T7379] RIP: 0033:0x7fe31c99038a
[  277.019478][ T7379] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  277.019493][ T7379] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  277.019512][ T7379] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  277.019525][ T7379] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  277.019537][ T7379] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  277.019549][ T7379] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  277.019561][ T7379] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  277.019591][ T7379]  </TASK>
[  277.323122][ T7379] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  277.337126][ T7379] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  277.653157][ T7383] loop1: detected capacity change from 0 to 32768
[  277.682611][ T7383] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  277.690166][ T7383] CPU: 1 UID: 0 PID: 7383 Comm: syz.1.198 Not tainted syzkaller #0 PREEMPT(full) 
[  277.690189][ T7383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  277.690200][ T7383] Call Trace:
[  277.690207][ T7383]  <TASK>
[  277.690215][ T7383]  dump_stack_lvl+0x189/0x250
[  277.690241][ T7383]  ? __pfx_dump_stack_lvl+0x10/0x10
[  277.690260][ T7383]  ? __pfx__printk+0x10/0x10
[  277.690289][ T7383]  ? kernfs_path_from_node+0x250/0x290
[  277.690308][ T7383]  ? kernfs_path_from_node+0x2f/0x290
[  277.690330][ T7383]  sysfs_create_dir_ns+0x259/0x280
[  277.690351][ T7383]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  277.690372][ T7383]  ? do_raw_spin_unlock+0x122/0x240
[  277.690397][ T7383]  kobject_add_internal+0x6ab/0xcc0
[  277.690423][ T7383]  kobject_init_and_add+0x125/0x190
[  277.690452][ T7383]  ? __pfx_kobject_init_and_add+0x10/0x10
[  277.690478][ T7383]  ? __raw_spin_lock_init+0x45/0x100
[  277.690503][ T7383]  ? __init_swait_queue_head+0xa9/0x150
[  277.690529][ T7383]  gfs2_sys_fs_add+0x234/0x450
[  277.690555][ T7383]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  277.690587][ T7383]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  277.690623][ T7383]  gfs2_fill_super+0x1388/0x21b0
[  277.690667][ T7383]  ? __pfx_gfs2_fill_super+0x10/0x10
[  277.690691][ T7383]  ? sb_set_blocksize+0x155/0x240
[  277.690716][ T7383]  ? setup_bdev_super+0x4c1/0x5b0
[  277.690738][ T7383]  get_tree_bdev_flags+0x40e/0x4d0
[  277.690757][ T7383]  ? __pfx_gfs2_fill_super+0x10/0x10
[  277.690777][ T7383]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  277.690795][ T7383]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  277.690832][ T7383]  gfs2_get_tree+0x51/0x1e0
[  277.690855][ T7383]  vfs_get_tree+0x92/0x2a0
[  277.690876][ T7383]  do_new_mount+0x302/0xa10
[  277.690896][ T7383]  ? apparmor_capable+0x137/0x1a0
[  277.690919][ T7383]  ? __pfx_do_new_mount+0x10/0x10
[  277.690939][ T7383]  ? ns_capable+0x8a/0xf0
[  277.690959][ T7383]  ? kmem_cache_free+0x197/0x620
[  277.690988][ T7383]  __se_sys_mount+0x313/0x410
[  277.691017][ T7383]  ? __pfx___se_sys_mount+0x10/0x10
[  277.691043][ T7383]  ? do_syscall_64+0xbe/0xf80
[  277.691063][ T7383]  ? __x64_sys_mount+0x20/0xc0
[  277.691087][ T7383]  do_syscall_64+0xfa/0xf80
[  277.691110][ T7383]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  277.691128][ T7383]  ? clear_bhb_loop+0x60/0xb0
[  277.691150][ T7383]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  277.691166][ T7383] RIP: 0033:0x7fe31c99038a
[  277.691182][ T7383] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  277.691197][ T7383] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  277.691216][ T7383] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  277.691229][ T7383] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  277.691239][ T7383] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  277.691250][ T7383] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  277.691261][ T7383] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  277.691291][ T7383]  </TASK>
[  277.691317][ T7383] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  278.009819][ T7383] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  278.348850][ T7387] loop1: detected capacity change from 0 to 32768
[  278.367934][ T7387] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  278.375843][ T7387] CPU: 1 UID: 0 PID: 7387 Comm: syz.1.199 Not tainted syzkaller #0 PREEMPT(full) 
[  278.375867][ T7387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  278.375878][ T7387] Call Trace:
[  278.375885][ T7387]  <TASK>
[  278.375893][ T7387]  dump_stack_lvl+0x189/0x250
[  278.375924][ T7387]  ? __pfx_dump_stack_lvl+0x10/0x10
[  278.375945][ T7387]  ? __pfx__printk+0x10/0x10
[  278.375974][ T7387]  ? kernfs_path_from_node+0x250/0x290
[  278.375993][ T7387]  ? kernfs_path_from_node+0x2f/0x290
[  278.376016][ T7387]  sysfs_create_dir_ns+0x259/0x280
[  278.376040][ T7387]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  278.376063][ T7387]  ? do_raw_spin_unlock+0x122/0x240
[  278.376091][ T7387]  kobject_add_internal+0x6ab/0xcc0
[  278.376119][ T7387]  kobject_init_and_add+0x125/0x190
[  278.376149][ T7387]  ? __pfx_kobject_init_and_add+0x10/0x10
[  278.376174][ T7387]  ? __raw_spin_lock_init+0x45/0x100
[  278.376199][ T7387]  ? __init_swait_queue_head+0xa9/0x150
[  278.376225][ T7387]  gfs2_sys_fs_add+0x234/0x450
[  278.376251][ T7387]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  278.376294][ T7387]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  278.376330][ T7387]  gfs2_fill_super+0x1388/0x21b0
[  278.376367][ T7387]  ? __pfx_gfs2_fill_super+0x10/0x10
[  278.376390][ T7387]  ? sb_set_blocksize+0x155/0x240
[  278.376416][ T7387]  ? setup_bdev_super+0x4c1/0x5b0
[  278.376439][ T7387]  get_tree_bdev_flags+0x40e/0x4d0
[  278.376458][ T7387]  ? __pfx_gfs2_fill_super+0x10/0x10
[  278.376477][ T7387]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  278.376493][ T7387]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  278.376529][ T7387]  gfs2_get_tree+0x51/0x1e0
[  278.376550][ T7387]  vfs_get_tree+0x92/0x2a0
[  278.376573][ T7387]  do_new_mount+0x302/0xa10
[  278.376594][ T7387]  ? apparmor_capable+0x137/0x1a0
[  278.376618][ T7387]  ? __pfx_do_new_mount+0x10/0x10
[  278.376641][ T7387]  ? ns_capable+0x8a/0xf0
[  278.376661][ T7387]  ? kmem_cache_free+0x197/0x620
[  278.376691][ T7387]  __se_sys_mount+0x313/0x410
[  278.376719][ T7387]  ? __pfx___se_sys_mount+0x10/0x10
[  278.376743][ T7387]  ? do_syscall_64+0xbe/0xf80
[  278.376763][ T7387]  ? __x64_sys_mount+0x20/0xc0
[  278.376786][ T7387]  do_syscall_64+0xfa/0xf80
[  278.376809][ T7387]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  278.376827][ T7387]  ? clear_bhb_loop+0x60/0xb0
[  278.376847][ T7387]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  278.376864][ T7387] RIP: 0033:0x7fe31c99038a
[  278.376881][ T7387] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  278.376895][ T7387] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  278.376913][ T7387] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  278.376926][ T7387] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  278.376938][ T7387] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  278.376949][ T7387] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  278.376961][ T7387] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  278.376992][ T7387]  </TASK>
[  278.377015][ T7387] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  278.695593][ T7387] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.057873][ T7391] loop1: detected capacity change from 0 to 32768
[  279.070830][ T7391] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.078246][ T7391] CPU: 1 UID: 0 PID: 7391 Comm: syz.1.200 Not tainted syzkaller #0 PREEMPT(full) 
[  279.078270][ T7391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  279.078280][ T7391] Call Trace:
[  279.078288][ T7391]  <TASK>
[  279.078297][ T7391]  dump_stack_lvl+0x189/0x250
[  279.078327][ T7391]  ? __pfx_dump_stack_lvl+0x10/0x10
[  279.078349][ T7391]  ? __pfx__printk+0x10/0x10
[  279.078379][ T7391]  ? kernfs_path_from_node+0x250/0x290
[  279.078398][ T7391]  ? kernfs_path_from_node+0x2f/0x290
[  279.078422][ T7391]  sysfs_create_dir_ns+0x259/0x280
[  279.078446][ T7391]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  279.078468][ T7391]  ? do_raw_spin_unlock+0x122/0x240
[  279.078496][ T7391]  kobject_add_internal+0x6ab/0xcc0
[  279.078523][ T7391]  kobject_init_and_add+0x125/0x190
[  279.078562][ T7391]  ? __pfx_kobject_init_and_add+0x10/0x10
[  279.078589][ T7391]  ? __raw_spin_lock_init+0x45/0x100
[  279.078613][ T7391]  ? __init_swait_queue_head+0xa9/0x150
[  279.078641][ T7391]  gfs2_sys_fs_add+0x234/0x450
[  279.078667][ T7391]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  279.078700][ T7391]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  279.078739][ T7391]  gfs2_fill_super+0x1388/0x21b0
[  279.078773][ T7391]  ? __pfx_gfs2_fill_super+0x10/0x10
[  279.078794][ T7391]  ? sb_set_blocksize+0x155/0x240
[  279.078816][ T7391]  ? setup_bdev_super+0x4c1/0x5b0
[  279.078834][ T7391]  get_tree_bdev_flags+0x40e/0x4d0
[  279.078850][ T7391]  ? __pfx_gfs2_fill_super+0x10/0x10
[  279.078866][ T7391]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  279.078881][ T7391]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  279.078912][ T7391]  gfs2_get_tree+0x51/0x1e0
[  279.078933][ T7391]  vfs_get_tree+0x92/0x2a0
[  279.078954][ T7391]  do_new_mount+0x302/0xa10
[  279.078974][ T7391]  ? apparmor_capable+0x137/0x1a0
[  279.078994][ T7391]  ? __pfx_do_new_mount+0x10/0x10
[  279.079012][ T7391]  ? ns_capable+0x8a/0xf0
[  279.079031][ T7391]  ? kmem_cache_free+0x197/0x620
[  279.079056][ T7391]  __se_sys_mount+0x313/0x410
[  279.079082][ T7391]  ? __pfx___se_sys_mount+0x10/0x10
[  279.079105][ T7391]  ? do_syscall_64+0xbe/0xf80
[  279.079126][ T7391]  ? __x64_sys_mount+0x20/0xc0
[  279.079151][ T7391]  do_syscall_64+0xfa/0xf80
[  279.079173][ T7391]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  279.079190][ T7391]  ? clear_bhb_loop+0x60/0xb0
[  279.079210][ T7391]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  279.079226][ T7391] RIP: 0033:0x7fe31c99038a
[  279.079242][ T7391] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  279.079256][ T7391] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.079273][ T7391] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  279.079284][ T7391] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  279.079295][ T7391] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  279.079306][ T7391] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  279.079315][ T7391] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  279.079339][ T7391]  </TASK>
[  279.387541][ T7391] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  279.402034][ T7391] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/03 19:54:31 executed programs: 186
[  279.720727][ T7395] loop1: detected capacity change from 0 to 32768
[  279.745092][ T7395] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.752673][ T7395] CPU: 1 UID: 0 PID: 7395 Comm: syz.1.201 Not tainted syzkaller #0 PREEMPT(full) 
[  279.752698][ T7395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  279.752708][ T7395] Call Trace:
[  279.752716][ T7395]  <TASK>
[  279.752724][ T7395]  dump_stack_lvl+0x189/0x250
[  279.752755][ T7395]  ? __pfx_dump_stack_lvl+0x10/0x10
[  279.752776][ T7395]  ? __pfx__printk+0x10/0x10
[  279.752807][ T7395]  ? kernfs_path_from_node+0x250/0x290
[  279.752826][ T7395]  ? kernfs_path_from_node+0x2f/0x290
[  279.752848][ T7395]  sysfs_create_dir_ns+0x259/0x280
[  279.752871][ T7395]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  279.752893][ T7395]  ? do_raw_spin_unlock+0x122/0x240
[  279.752921][ T7395]  kobject_add_internal+0x6ab/0xcc0
[  279.752946][ T7395]  kobject_init_and_add+0x125/0x190
[  279.752977][ T7395]  ? __pfx_kobject_init_and_add+0x10/0x10
[  279.753003][ T7395]  ? __raw_spin_lock_init+0x45/0x100
[  279.753027][ T7395]  ? __init_swait_queue_head+0xa9/0x150
[  279.753055][ T7395]  gfs2_sys_fs_add+0x234/0x450
[  279.753082][ T7395]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  279.753114][ T7395]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  279.753151][ T7395]  gfs2_fill_super+0x1388/0x21b0
[  279.753188][ T7395]  ? __pfx_gfs2_fill_super+0x10/0x10
[  279.753212][ T7395]  ? sb_set_blocksize+0x155/0x240
[  279.753239][ T7395]  ? setup_bdev_super+0x4c1/0x5b0
[  279.753262][ T7395]  get_tree_bdev_flags+0x40e/0x4d0
[  279.753282][ T7395]  ? __pfx_gfs2_fill_super+0x10/0x10
[  279.753300][ T7395]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  279.753318][ T7395]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  279.753355][ T7395]  gfs2_get_tree+0x51/0x1e0
[  279.753385][ T7395]  vfs_get_tree+0x92/0x2a0
[  279.753408][ T7395]  do_new_mount+0x302/0xa10
[  279.753428][ T7395]  ? apparmor_capable+0x137/0x1a0
[  279.753451][ T7395]  ? __pfx_do_new_mount+0x10/0x10
[  279.753474][ T7395]  ? ns_capable+0x8a/0xf0
[  279.753495][ T7395]  ? kmem_cache_free+0x197/0x620
[  279.753526][ T7395]  __se_sys_mount+0x313/0x410
[  279.753555][ T7395]  ? __pfx___se_sys_mount+0x10/0x10
[  279.753581][ T7395]  ? do_syscall_64+0xbe/0xf80
[  279.753602][ T7395]  ? __x64_sys_mount+0x20/0xc0
[  279.753627][ T7395]  do_syscall_64+0xfa/0xf80
[  279.753650][ T7395]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  279.753668][ T7395]  ? clear_bhb_loop+0x60/0xb0
[  279.753688][ T7395]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  279.753706][ T7395] RIP: 0033:0x7fe31c99038a
[  279.753723][ T7395] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  279.753737][ T7395] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.753756][ T7395] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  279.753769][ T7395] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  279.753781][ T7395] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  279.753793][ T7395] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  279.753805][ T7395] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  279.753836][ T7395]  </TASK>
[  279.753861][ T7395] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  280.073720][ T7395] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  280.417541][ T7399] loop1: detected capacity change from 0 to 32768
[  280.430179][ T7399] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  280.437597][ T7399] CPU: 0 UID: 0 PID: 7399 Comm: syz.1.202 Not tainted syzkaller #0 PREEMPT(full) 
[  280.437619][ T7399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  280.437629][ T7399] Call Trace:
[  280.437636][ T7399]  <TASK>
[  280.437643][ T7399]  dump_stack_lvl+0x189/0x250
[  280.437675][ T7399]  ? __pfx_dump_stack_lvl+0x10/0x10
[  280.437696][ T7399]  ? __pfx__printk+0x10/0x10
[  280.437725][ T7399]  ? kernfs_path_from_node+0x250/0x290
[  280.437744][ T7399]  ? kernfs_path_from_node+0x2f/0x290
[  280.437765][ T7399]  sysfs_create_dir_ns+0x259/0x280
[  280.437787][ T7399]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  280.437806][ T7399]  ? do_raw_spin_unlock+0x122/0x240
[  280.437832][ T7399]  kobject_add_internal+0x6ab/0xcc0
[  280.437855][ T7399]  kobject_init_and_add+0x125/0x190
[  280.437884][ T7399]  ? __pfx_kobject_init_and_add+0x10/0x10
[  280.437907][ T7399]  ? __raw_spin_lock_init+0x45/0x100
[  280.437928][ T7399]  ? __init_swait_queue_head+0xa9/0x150
[  280.437952][ T7399]  gfs2_sys_fs_add+0x234/0x450
[  280.437978][ T7399]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  280.438009][ T7399]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  280.438045][ T7399]  gfs2_fill_super+0x1388/0x21b0
[  280.438077][ T7399]  ? __pfx_gfs2_fill_super+0x10/0x10
[  280.438099][ T7399]  ? sb_set_blocksize+0x155/0x240
[  280.438123][ T7399]  ? setup_bdev_super+0x4c1/0x5b0
[  280.438145][ T7399]  get_tree_bdev_flags+0x40e/0x4d0
[  280.438163][ T7399]  ? __pfx_gfs2_fill_super+0x10/0x10
[  280.438183][ T7399]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  280.438199][ T7399]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  280.438233][ T7399]  gfs2_get_tree+0x51/0x1e0
[  280.438255][ T7399]  vfs_get_tree+0x92/0x2a0
[  280.438276][ T7399]  do_new_mount+0x302/0xa10
[  280.438296][ T7399]  ? apparmor_capable+0x137/0x1a0
[  280.438329][ T7399]  ? __pfx_do_new_mount+0x10/0x10
[  280.438350][ T7399]  ? ns_capable+0x8a/0xf0
[  280.438371][ T7399]  ? kmem_cache_free+0x197/0x620
[  280.438403][ T7399]  __se_sys_mount+0x313/0x410
[  280.438432][ T7399]  ? __pfx___se_sys_mount+0x10/0x10
[  280.438458][ T7399]  ? do_syscall_64+0xbe/0xf80
[  280.438478][ T7399]  ? __x64_sys_mount+0x20/0xc0
[  280.438502][ T7399]  do_syscall_64+0xfa/0xf80
[  280.438524][ T7399]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  280.438541][ T7399]  ? clear_bhb_loop+0x60/0xb0
[  280.438561][ T7399]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  280.438577][ T7399] RIP: 0033:0x7fe31c99038a
[  280.438595][ T7399] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  280.438607][ T7399] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  280.438625][ T7399] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  280.438638][ T7399] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  280.438649][ T7399] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  280.438660][ T7399] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  280.438670][ T7399] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  280.438700][ T7399]  </TASK>
[  280.487731][ T7399] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  280.757034][ T7399] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  281.096135][ T7403] loop1: detected capacity change from 0 to 32768
[  281.121308][ T7403] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  281.128703][ T7403] CPU: 0 UID: 0 PID: 7403 Comm: syz.1.203 Not tainted syzkaller #0 PREEMPT(full) 
[  281.128717][ T7403] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  281.128724][ T7403] Call Trace:
[  281.128729][ T7403]  <TASK>
[  281.128734][ T7403]  dump_stack_lvl+0x189/0x250
[  281.128761][ T7403]  ? __pfx_dump_stack_lvl+0x10/0x10
[  281.128778][ T7403]  ? __pfx__printk+0x10/0x10
[  281.128802][ T7403]  ? kernfs_path_from_node+0x250/0x290
[  281.128819][ T7403]  ? kernfs_path_from_node+0x2f/0x290
[  281.128839][ T7403]  sysfs_create_dir_ns+0x259/0x280
[  281.128859][ T7403]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  281.128878][ T7403]  ? do_raw_spin_unlock+0x122/0x240
[  281.128901][ T7403]  kobject_add_internal+0x6ab/0xcc0
[  281.128926][ T7403]  kobject_init_and_add+0x125/0x190
[  281.128954][ T7403]  ? __pfx_kobject_init_and_add+0x10/0x10
[  281.128975][ T7403]  ? __raw_spin_lock_init+0x45/0x100
[  281.128997][ T7403]  ? __init_swait_queue_head+0xa9/0x150
[  281.129023][ T7403]  gfs2_sys_fs_add+0x234/0x450
[  281.129057][ T7403]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  281.129084][ T7403]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  281.129117][ T7403]  gfs2_fill_super+0x1388/0x21b0
[  281.129149][ T7403]  ? __pfx_gfs2_fill_super+0x10/0x10
[  281.129169][ T7403]  ? sb_set_blocksize+0x155/0x240
[  281.129190][ T7403]  ? setup_bdev_super+0x4c1/0x5b0
[  281.129211][ T7403]  get_tree_bdev_flags+0x40e/0x4d0
[  281.129228][ T7403]  ? __pfx_gfs2_fill_super+0x10/0x10
[  281.129246][ T7403]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  281.129263][ T7403]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  281.129296][ T7403]  gfs2_get_tree+0x51/0x1e0
[  281.129314][ T7403]  vfs_get_tree+0x92/0x2a0
[  281.129333][ T7403]  do_new_mount+0x302/0xa10
[  281.129352][ T7403]  ? apparmor_capable+0x137/0x1a0
[  281.129375][ T7403]  ? __pfx_do_new_mount+0x10/0x10
[  281.129397][ T7403]  ? ns_capable+0x8a/0xf0
[  281.129419][ T7403]  ? kmem_cache_free+0x197/0x620
[  281.129448][ T7403]  __se_sys_mount+0x313/0x410
[  281.129475][ T7403]  ? __pfx___se_sys_mount+0x10/0x10
[  281.129499][ T7403]  ? do_syscall_64+0xbe/0xf80
[  281.129519][ T7403]  ? __x64_sys_mount+0x20/0xc0
[  281.129542][ T7403]  do_syscall_64+0xfa/0xf80
[  281.129565][ T7403]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  281.129582][ T7403]  ? clear_bhb_loop+0x60/0xb0
[  281.129603][ T7403]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  281.129620][ T7403] RIP: 0033:0x7fe31c99038a
[  281.129638][ T7403] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  281.129652][ T7403] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  281.129671][ T7403] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  281.129683][ T7403] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  281.129694][ T7403] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  281.129705][ T7403] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  281.129717][ T7403] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  281.129748][ T7403]  </TASK>
[  281.441667][ T7403] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  281.455701][ T7403] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  281.809295][ T7407] loop1: detected capacity change from 0 to 32768
[  281.829818][ T7407] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  281.837436][ T7407] CPU: 1 UID: 0 PID: 7407 Comm: syz.1.204 Not tainted syzkaller #0 PREEMPT(full) 
[  281.837458][ T7407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  281.837467][ T7407] Call Trace:
[  281.837474][ T7407]  <TASK>
[  281.837482][ T7407]  dump_stack_lvl+0x189/0x250
[  281.837511][ T7407]  ? __pfx_dump_stack_lvl+0x10/0x10
[  281.837532][ T7407]  ? __pfx__printk+0x10/0x10
[  281.837561][ T7407]  ? kernfs_path_from_node+0x250/0x290
[  281.837578][ T7407]  ? kernfs_path_from_node+0x2f/0x290
[  281.837598][ T7407]  sysfs_create_dir_ns+0x259/0x280
[  281.837620][ T7407]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  281.837641][ T7407]  ? do_raw_spin_unlock+0x122/0x240
[  281.837670][ T7407]  kobject_add_internal+0x6ab/0xcc0
[  281.837698][ T7407]  kobject_init_and_add+0x125/0x190
[  281.837729][ T7407]  ? __pfx_kobject_init_and_add+0x10/0x10
[  281.837754][ T7407]  ? __raw_spin_lock_init+0x45/0x100
[  281.837777][ T7407]  ? __init_swait_queue_head+0xa9/0x150
[  281.837803][ T7407]  gfs2_sys_fs_add+0x234/0x450
[  281.837829][ T7407]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  281.837858][ T7407]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  281.837893][ T7407]  gfs2_fill_super+0x1388/0x21b0
[  281.837937][ T7407]  ? __pfx_gfs2_fill_super+0x10/0x10
[  281.837955][ T7407]  ? sb_set_blocksize+0x155/0x240
[  281.837970][ T7407]  ? setup_bdev_super+0x4c1/0x5b0
[  281.837983][ T7407]  get_tree_bdev_flags+0x40e/0x4d0
[  281.837994][ T7407]  ? __pfx_gfs2_fill_super+0x10/0x10
[  281.838005][ T7407]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  281.838015][ T7407]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  281.838035][ T7407]  gfs2_get_tree+0x51/0x1e0
[  281.838048][ T7407]  vfs_get_tree+0x92/0x2a0
[  281.838060][ T7407]  do_new_mount+0x302/0xa10
[  281.838072][ T7407]  ? apparmor_capable+0x137/0x1a0
[  281.838085][ T7407]  ? __pfx_do_new_mount+0x10/0x10
[  281.838098][ T7407]  ? ns_capable+0x8a/0xf0
[  281.838110][ T7407]  ? kmem_cache_free+0x197/0x620
[  281.838127][ T7407]  __se_sys_mount+0x313/0x410
[  281.838144][ T7407]  ? __pfx___se_sys_mount+0x10/0x10
[  281.838161][ T7407]  ? do_syscall_64+0xbe/0xf80
[  281.838173][ T7407]  ? __x64_sys_mount+0x20/0xc0
[  281.838187][ T7407]  do_syscall_64+0xfa/0xf80
[  281.838200][ T7407]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  281.838210][ T7407]  ? clear_bhb_loop+0x60/0xb0
[  281.838222][ T7407]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  281.838232][ T7407] RIP: 0033:0x7fe31c99038a
[  281.838242][ T7407] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  281.838251][ T7407] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  281.838262][ T7407] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  281.838269][ T7407] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  281.838276][ T7407] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  281.838282][ T7407] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  281.838288][ T7407] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  281.838305][ T7407]  </TASK>
[  281.838438][ T7407] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  282.042226][   T31] INFO: task syz.0.17:6622 blocked for more than 143 seconds.
[  282.045633][ T7407] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  282.051088][   T31]       Not tainted syzkaller #0
[  282.177227][   T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  282.185967][   T31] task:syz.0.17        state:D stack:27064 pid:6622  tgid:6622  ppid:6532   task_flags:0x400040 flags:0x00080002
[  282.198037][   T31] Call Trace:
[  282.208925][   T31]  <TASK>
[  282.211916][   T31]  __schedule+0x150e/0x5070
[  282.216474][   T31]  ? __pfx___schedule+0x10/0x10
[  282.229229][   T31]  ? schedule+0x91/0x360
[  282.233533][   T31]  schedule+0x165/0x360
[  282.237705][   T31]  io_schedule+0x80/0xd0
[  282.242041][   T31]  folio_wait_bit_common+0x6b0/0xb80
[  282.247405][   T31]  ? __pfx_folio_wait_bit_common+0x10/0x10
[  282.253283][   T31]  ? __pfx_wake_page_function+0x10/0x10
[  282.258995][   T31]  ? check_noncircular+0xda/0x150
[  282.264789][   T31]  ? writeback_iter+0x853/0x1280
[  282.269863][   T31]  writeback_iter+0x8d8/0x1280
[  282.274668][   T31]  iomap_writepages+0x14d/0x2d0
[  282.283575][   T31]  ? __pfx_iomap_writepages+0x10/0x10
[  282.289525][   T31]  gfs2_writepages+0x177/0x250
[  282.294338][   T31]  ? __pfx_gfs2_writepages+0x10/0x10
[  282.300261][   T31]  ? __pfx_gfs2_writepages+0x10/0x10
[  282.305668][   T31]  do_writepages+0x32e/0x550
[  282.310857][   T31]  ? do_raw_spin_unlock+0x122/0x240
[  282.316093][   T31]  filemap_fdatawrite+0x199/0x240
[  282.324786][   T31]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  282.330465][   T31]  ? do_raw_spin_unlock+0x122/0x240
[  282.335689][   T31]  gfs2_log_flush+0x86b/0x24c0
[  282.340544][   T31]  ? __pfx_gfs2_log_flush+0x10/0x10
[  282.345762][   T31]  ? __pfx___up_read+0x10/0x10
[  282.351464][   T31]  gfs2_trans_end+0x37c/0x570
[  282.356182][   T31]  gfs2_page_mkwrite+0x14a8/0x1910
[  282.363068][   T31]  ? do_page_mkwrite+0x14d/0x310
[  282.368039][   T31]  ? __pfx_gfs2_page_mkwrite+0x10/0x10
[  282.373562][   T31]  ? gfs2_fault+0x19a/0x1f0
[  282.378137][   T31]  ? do_page_mkwrite+0x14d/0x310
[  282.383521][   T31]  do_page_mkwrite+0x14d/0x310
[  282.388328][   T31]  do_pte_missing+0x792/0x3330
[  282.393400][   T31]  ? handle_mm_fault+0xdb/0x32b0
[  282.398570][   T31]  handle_mm_fault+0x1b26/0x32b0
[  282.403640][   T31]  ? handle_mm_fault+0xdb/0x32b0
[  282.409080][   T31]  ? __pfx_handle_mm_fault+0x10/0x10
[  282.414782][   T31]  ? lock_vma_under_rcu+0x42c/0x4a0
[  282.420470][   T31]  ? __pfx_do_futex+0x10/0x10
[  282.426298][   T31]  ? do_user_addr_fault+0x1a8/0x1380
[  282.431784][   T31]  do_user_addr_fault+0xa7c/0x1380
[  282.436931][   T31]  ? rcu_is_watching+0x15/0xb0
[  282.442156][   T31]  ? trace_page_fault_user+0x84/0x1c0
[  282.447559][   T31]  exc_page_fault+0x82/0x100
[  282.452227][   T31]  asm_exc_page_fault+0x26/0x30
[  282.457343][   T31] RIP: 0033:0x7f2bde6550b3
[  282.461862][   T31] RSP: 002b:00007ffc809d7660 EFLAGS: 00010246
[  282.467944][   T31] RAX: 0000200000000180 RBX: 0000000000000008 RCX: 0000000000000000
[  282.476039][   T31] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00005555611263c8
[  282.484079][   T31] RBP: 00007ffc809d7768 R08: 0000000000000000 R09: 0000000000000000
[  282.492567][   T31] R10: 0000000000000000 R11: 0000000000000000 R12: 00007f2bde9b5fac
[  282.500888][   T31] R13: 00007f2bde9b5fa0 R14: fffffffffffffffe R15: 00007ffc809d77b0
[  282.509218][   T31]  </TASK>
[  282.512360][   T31] 
[  282.512360][   T31] Showing all locks held in the system:
[  282.529523][   T31] 1 lock held by pool_workqueue_/3:
[  282.534769][   T31]  #0: ffffffff8e144e38 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2f6/0x730
[  282.546374][   T31] 1 lock held by khungtaskd/31:
[  282.551286][   T31]  #0: ffffffff8e13f2e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[  282.561255][   T31] 4 locks held by kworker/u8:13/3724:
[  282.566648][   T31]  #0: ffff88801cef5948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x841/0x15a0
[  282.578388][   T31]  #1: ffffc9000c7bfb80 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x868/0x15a0
[  282.591255][   T31]  #2: ffff888034af00e0 (&type->s_umount_key#54){.+.+}-{4:4}, at: super_trylock_shared+0x20/0xf0
[  282.607654][   T31]  #3: ffff888033c64ea0 (&sdp->sd_log_flush_lock){++++}-{4:4}, at: gfs2_log_flush+0xec/0x24c0
[  282.618183][   T31] 2 locks held by getty/5587:
[  282.622895][   T31]  #0: ffff8880349220a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  282.633859][   T31]  #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x449/0x1460
[  282.644061][   T31] 4 locks held by syz.0.17/6622:
[  282.649367][   T31]  #0: ffff8880762b1a88 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1a7/0x4a0
[  282.658627][   T31]  #1: ffff888034af0518 (sb_pagefaults#2){.+.+}-{0:0}, at: do_page_mkwrite+0x14d/0x310
[  282.668483][   T31]  #2: ffff888034af0610 (sb_internal#2){.+.+}-{0:0}, at: gfs2_trans_begin+0x6f/0xe0
[  282.674566][ T7411] loop1: detected capacity change from 0 to 32768
[  282.678230][   T31]  #3: ffff888033c64ea0 (&sdp->sd_log_flush_lock){++++}-{4:4}, at: gfs2_log_flush+0xec/0x24c0
[  282.705559][   T31] 1 lock held by gfs2_logd/syz:s/6626:
[  282.711679][   T31]  #0: ffff888033c64ea0 (&sdp->sd_log_flush_lock){++++}-{4:4}, at: gfs2_log_flush+0xec/0x24c0
[  282.722258][ T7411] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  282.730040][   T31] 2 locks held by gfs2_quotad/syz/6627:
[  282.736990][ T7411] CPU: 1 UID: 0 PID: 7411 Comm: syz.1.205 Not tainted syzkaller #0 PREEMPT(full) 
[  282.737016][ T7411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  282.737027][ T7411] Call Trace:
[  282.737035][ T7411]  <TASK>
[  282.737044][ T7411]  dump_stack_lvl+0x189/0x250
[  282.737084][ T7411]  ? __pfx_dump_stack_lvl+0x10/0x10
[  282.737105][ T7411]  ? __pfx__printk+0x10/0x10
[  282.737134][ T7411]  ? kernfs_path_from_node+0x250/0x290
[  282.737154][ T7411]  ? kernfs_path_from_node+0x2f/0x290
[  282.737176][ T7411]  sysfs_create_dir_ns+0x259/0x280
[  282.737198][ T7411]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  282.737219][ T7411]  ? do_raw_spin_unlock+0x122/0x240
[  282.737247][ T7411]  kobject_add_internal+0x6ab/0xcc0
[  282.737274][ T7411]  kobject_init_and_add+0x125/0x190
[  282.737303][ T7411]  ? __pfx_kobject_init_and_add+0x10/0x10
[  282.737330][ T7411]  ? __raw_spin_lock_init+0x45/0x100
[  282.737355][ T7411]  ? __init_swait_queue_head+0xa9/0x150
[  282.737383][ T7411]  gfs2_sys_fs_add+0x234/0x450
[  282.737410][ T7411]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  282.737443][ T7411]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  282.737480][ T7411]  gfs2_fill_super+0x1388/0x21b0
[  282.737515][ T7411]  ? __pfx_gfs2_fill_super+0x10/0x10
[  282.737540][ T7411]  ? sb_set_blocksize+0x155/0x240
[  282.737565][ T7411]  ? setup_bdev_super+0x4c1/0x5b0
[  282.737586][ T7411]  get_tree_bdev_flags+0x40e/0x4d0
[  282.737604][ T7411]  ? __pfx_gfs2_fill_super+0x10/0x10
[  282.737623][ T7411]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  282.737638][ T7411]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  282.737675][ T7411]  gfs2_get_tree+0x51/0x1e0
[  282.737697][ T7411]  vfs_get_tree+0x92/0x2a0
[  282.737718][ T7411]  do_new_mount+0x302/0xa10
[  282.737739][ T7411]  ? apparmor_capable+0x137/0x1a0
[  282.737763][ T7411]  ? __pfx_do_new_mount+0x10/0x10
[  282.737784][ T7411]  ? ns_capable+0x8a/0xf0
[  282.737804][ T7411]  ? kmem_cache_free+0x197/0x620
[  282.737835][ T7411]  __se_sys_mount+0x313/0x410
[  282.737864][ T7411]  ? __pfx___se_sys_mount+0x10/0x10
[  282.737889][ T7411]  ? do_syscall_64+0xbe/0xf80
[  282.737910][ T7411]  ? __x64_sys_mount+0x20/0xc0
[  282.737935][ T7411]  do_syscall_64+0xfa/0xf80
[  282.737959][ T7411]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  282.737978][ T7411]  ? clear_bhb_loop+0x60/0xb0
[  282.737999][ T7411]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  282.738017][ T7411] RIP: 0033:0x7fe31c99038a
[  282.738035][ T7411] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  282.738058][ T7411] RSP: 002b:00007fe31d894e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  282.738077][ T7411] RAX: ffffffffffffffda RBX: 00007fe31d894ef0 RCX: 00007fe31c99038a
[  282.738090][ T7411] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe31d894eb0
[  282.738101][ T7411] RBP: 000020000001f680 R08: 00007fe31d894ef0 R09: 0000000000000094
[  282.738113][ T7411] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  282.738123][ T7411] R13: 00007fe31d894eb0 R14: 000000000001f790 R15: 00002000000001c0
[  282.738152][ T7411]  </TASK>
[  282.738178][ T7411] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  282.868856][   T31]  #0: 
[  282.871022][ T7411] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  282.875507][   T31] ffff888034af0610 (sb_internal#2){.+.+}-{0:0}, at: gfs2_trans_begin+0x6f/0xe0
[  283.077199][   T31]  #1: ffff888033c64ea0 (&sdp->sd_log_flush_lock){++++}-{4:4}, at: __gfs2_trans_begin+0x519/0x900
[  283.092940][   T31] 
[  283.095506][   T31] =============================================
[  283.095506][   T31] 
[  283.104035][   T31] NMI backtrace for cpu 0
[  283.104051][   T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  283.104065][   T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  283.104075][   T31] Call Trace:
[  283.104082][   T31]  <TASK>
[  283.104089][   T31]  dump_stack_lvl+0x189/0x250
[  283.104114][   T31]  ? __pfx_dump_stack_lvl+0x10/0x10
[  283.104134][   T31]  ? __pfx__printk+0x10/0x10
[  283.104167][   T31]  nmi_cpu_backtrace+0x39e/0x3d0
[  283.104190][   T31]  ? __pfx_nmi_cpu_backtrace+0x10/0x10
[  283.104212][   T31]  ? __pfx__printk+0x10/0x10
[  283.104241][   T31]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  283.104270][   T31]  nmi_trigger_cpumask_backtrace+0x17a/0x300
[  283.104291][   T31]  sys_info+0x135/0x170
[  283.104307][   T31]  watchdog+0xe40/0xe90
[  283.104336][   T31]  ? watchdog+0x202/0xe90
[  283.104362][   T31]  kthread+0x711/0x8a0
[  283.104385][   T31]  ? __pfx_watchdog+0x10/0x10
[  283.104407][   T31]  ? __pfx_kthread+0x10/0x10
[  283.104430][   T31]  ? _raw_spin_unlock_irq+0x23/0x50
[  283.104450][   T31]  ? lockdep_hardirqs_on+0x98/0x140
[  283.104471][   T31]  ? __pfx_kthread+0x10/0x10
[  283.104494][   T31]  ret_from_fork+0x599/0xb30
[  283.104514][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  283.104540][   T31]  ? __switch_to_asm+0x39/0x70
[  283.104561][   T31]  ? __switch_to_asm+0x33/0x70
[  283.104580][   T31]  ? __pfx_kthread+0x10/0x10
[  283.104603][   T31]  ret_from_fork_asm+0x1a/0x30
[  283.104638][   T31]  </TASK>
[  283.104645][   T31] Sending NMI from CPU 0 to CPUs 1:
[  283.256195][    C1] NMI backtrace for cpu 1
[  283.256213][    C1] CPU: 1 UID: 0 PID: 7415 Comm: syz.1.206 Not tainted syzkaller #0 PREEMPT(full) 
[  283.256233][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  283.256245][    C1] RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x4/0x90
[  283.256274][    C1] Code: 89 74 11 18 48 89 44 11 20 c3 cc cc cc cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <48> 8b 04 24 65 48 8b 0c 25 08 b0 9f 92 65 8b 15 d8 f2 dd 10 81 e2
[  283.256289][    C1] RSP: 0000:ffffc9000b8efb38 EFLAGS: 00000246
[  283.256304][    C1] RAX: ffffffff8210d001 RBX: 8000000000000025 RCX: ffff88802bc48000
[  283.256317][    C1] RDX: 0000000000000000 RSI: 8000000000000025 RDI: 0000000000000000
[  283.256329][    C1] RBP: ffffea00013d7800 R08: ffffea00013d7887 R09: 1ffffd400027af10
[  283.256341][    C1] R10: dffffc0000000000 R11: fffff9400027af11 R12: ffffea0000000000
[  283.256354][    C1] R13: dffffc0000000000 R14: 8000000000000025 R15: 000000004f5e2000
[  283.256366][    C1] FS:  00007fe31d8956c0(0000) GS:ffff888125d25000(0000) knlGS:0000000000000000
[  283.256381][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  283.256392][    C1] CR2: 00007fe313d75000 CR3: 0000000029e22000 CR4: 00000000003526f0
[  283.256408][    C1] Call Trace:
[  283.256414][    C1]  <TASK>
[  283.256421][    C1]  do_pte_missing+0x1711/0x3330
[  283.256447][    C1]  ? handle_mm_fault+0xdb/0x32b0
[  283.256473][    C1]  handle_mm_fault+0x1b26/0x32b0
[  283.256503][    C1]  ? handle_mm_fault+0xdb/0x32b0
[  283.256530][    C1]  ? __pfx_handle_mm_fault+0x10/0x10
[  283.256553][    C1]  ? lock_vma_under_rcu+0x42c/0x4a0
[  283.256569][    C1]  ? lockdep_softirqs_on+0x13b/0x1c0
[  283.256593][    C1]  ? do_user_addr_fault+0x1a8/0x1380
[  283.256612][    C1]  do_user_addr_fault+0xa7c/0x1380
[  283.256632][    C1]  ? rcu_is_watching+0x15/0xb0
[  283.256652][    C1]  ? trace_page_fault_user+0x84/0x1c0
[  283.256670][    C1]  exc_page_fault+0x82/0x100
[  283.256693][    C1]  asm_exc_page_fault+0x26/0x30
[  283.256708][    C1] RIP: 0033:0x7fe31c850c50
[  283.256722][    C1] Code: 39 4f 08 72 4c 8d 4d ff 85 ed 74 33 66 0f 1f 44 00 00 48 39 f0 72 1b 4d 8b 07 49 89 c1 49 29 f1 47 0f b6 0c 08 45 84 c9 74 08 <45> 88 0c 00 49 8b 47 10 48 83 c0 01 49 89 47 10 83 e9 01 73 d3 41
[  283.256735][    C1] RSP: 002b:00007fe31d8944a0 EFLAGS: 00010202
[  283.256748][    C1] RAX: 0000000000375000 RBX: 00007fe31d894540 RCX: 000000000000001e
[  283.256759][    C1] RDX: 00000000000003ff RSI: 0000000000000800 RDI: 00007fe31d8945e0
[  283.256769][    C1] RBP: 000000000000001f R08: 00007fe313a00000 R09: 0000000000000001
[  283.256780][    C1] R10: 000020000005e5c2 R11: 000000000001f78e R12: 0000000000000601
[  283.256790][    C1] R13: 00007fe31ca2da20 R14: 0000000000000015 R15: 00007fe31d8945e0
[  283.256810][    C1]  </TASK>
[  283.524103][   T31] Kernel panic - not syncing: hung_task: blocked tasks
[  283.530964][   T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  283.540095][   T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  283.550255][   T31] Call Trace:
[  283.553568][   T31]  <TASK>
[  283.556512][   T31]  dump_stack_lvl+0x99/0x250
[  283.561120][   T31]  ? __asan_memcpy+0x40/0x70
[  283.565728][   T31]  ? __pfx_dump_stack_lvl+0x10/0x10
[  283.570946][   T31]  ? __pfx__printk+0x10/0x10
[  283.575568][   T31]  vpanic+0x237/0x6d0
[  283.579560][   T31]  ? __pfx_vpanic+0x10/0x10
[  283.584121][   T31]  ? irqentry_exit+0x5dd/0x660
[  283.588910][   T31]  ? lockdep_hardirqs_on+0x98/0x140
[  283.594126][   T31]  panic+0xb9/0xc0
[  283.597946][   T31]  ? __pfx_panic+0x10/0x10
[  283.602380][   T31]  ? __pfx_panic+0x10/0x10
[  283.606804][   T31]  watchdog+0xe83/0xe90
[  283.610985][   T31]  ? watchdog+0x202/0xe90
[  283.615430][   T31]  kthread+0x711/0x8a0
[  283.619520][   T31]  ? __pfx_watchdog+0x10/0x10
[  283.624299][   T31]  ? __pfx_kthread+0x10/0x10
[  283.628998][   T31]  ? _raw_spin_unlock_irq+0x23/0x50
[  283.634191][   T31]  ? lockdep_hardirqs_on+0x98/0x140
[  283.639376][   T31]  ? __pfx_kthread+0x10/0x10
[  283.644044][   T31]  ret_from_fork+0x599/0xb30
[  283.648632][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  283.653745][   T31]  ? __switch_to_asm+0x39/0x70
[  283.658530][   T31]  ? __switch_to_asm+0x33/0x70
[  283.663374][   T31]  ? __pfx_kthread+0x10/0x10
[  283.667973][   T31]  ret_from_fork_asm+0x1a/0x30
[  283.672828][   T31]  </TASK>
[  283.676402][   T31] Kernel Offset: disabled
[  283.680716][   T31] Rebooting in 86400 seconds..