PID: 7561 Comm: syz.2.192 Not tainted syzkaller #0 PREEMPT(full)
[ 244.848738][ T7561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 244.848750][ T7561] Call Trace:
[ 244.848758][ T7561]
[ 244.848766][ T7561] dump_stack_lvl+0xe8/0x150
[ 244.848794][ T7561] sysfs_create_dir_ns+0x259/0x280
[ 244.848824][ T7561] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 244.848852][ T7561] ? do_raw_spin_unlock+0xf6/0x210
[ 244.848875][ T7561] kobject_add_internal+0x6ab/0xcc0
[ 244.848908][ T7561] kobject_init_and_add+0x125/0x190
[ 244.848936][ T7561] ? __pfx_kobject_init_and_add+0x10/0x10
[ 244.848960][ T7561] ? __raw_spin_lock_init+0x45/0x100
[ 244.848979][ T7561] ? __init_swait_queue_head+0xa9/0x150
[ 244.849016][ T7561] gfs2_sys_fs_add+0x234/0x450
[ 244.849037][ T7561] ? is_dynamic_key+0x1ac/0x1c0
[ 244.849059][ T7561] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 244.849088][ T7561] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 244.849127][ T7561] gfs2_fill_super+0x1388/0x21b0
[ 244.849168][ T7561] ? __pfx_gfs2_fill_super+0x10/0x10
[ 244.849198][ T7561] ? sb_set_blocksize+0x155/0x240
[ 244.849222][ T7561] ? setup_bdev_super+0x4c1/0x5b0
[ 244.849248][ T7561] get_tree_bdev_flags+0x40e/0x4d0
[ 244.849270][ T7561] ? __pfx_gfs2_fill_super+0x10/0x10
[ 244.849297][ T7561] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 244.849318][ T7561] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 244.849350][ T7561] gfs2_get_tree+0x51/0x1e0
[ 244.849378][ T7561] vfs_get_tree+0x92/0x2a0
[ 244.849404][ T7561] do_new_mount+0x31a/0xcf0
[ 244.849421][ T7561] ? apparmor_capable+0x137/0x1a0
[ 244.849443][ T7561] ? __pfx_do_new_mount+0x10/0x10
[ 244.849462][ T7561] ? ns_capable+0x8a/0xf0
[ 244.849487][ T7561] ? user_path_at+0xd4/0x160
[ 244.849513][ T7561] ? user_path_at+0xd4/0x160
[ 244.849535][ T7561] __se_sys_mount+0x313/0x410
[ 244.849561][ T7561] ? __pfx___se_sys_mount+0x10/0x10
[ 244.849587][ T7561] ? __x64_sys_mount+0x20/0xc0
[ 244.849608][ T7561] do_syscall_64+0xec/0xf80
[ 244.849628][ T7561] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 244.849645][ T7561] ? trace_irq_disable+0x37/0x100
[ 244.849661][ T7561] ? clear_bhb_loop+0x40/0x90
[ 244.849683][ T7561] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 244.849700][ T7561] RIP: 0033:0x7f3e03d9038a
[ 244.849717][ T7561] 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
[ 244.849733][ T7561] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.849752][ T7561] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 244.849766][ T7561] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 244.849778][ T7561] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 244.849790][ T7561] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 244.849802][ T7561] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 244.849831][ T7561]
[ 244.849856][ T7561] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.181589][ T7558] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.191760][ T7561] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.231945][ T7558] CPU: 0 UID: 0 PID: 7558 Comm: syz.3.191 Not tainted syzkaller #0 PREEMPT(full)
[ 245.231971][ T7558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 245.231983][ T7558] Call Trace:
[ 245.231990][ T7558]
[ 245.231998][ T7558] dump_stack_lvl+0xe8/0x150
[ 245.232025][ T7558] sysfs_create_dir_ns+0x259/0x280
[ 245.232055][ T7558] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 245.232084][ T7558] ? do_raw_spin_unlock+0xf6/0x210
[ 245.232107][ T7558] kobject_add_internal+0x6ab/0xcc0
[ 245.232138][ T7558] kobject_init_and_add+0x125/0x190
[ 245.232165][ T7558] ? __pfx_kobject_init_and_add+0x10/0x10
[ 245.232188][ T7558] ? __raw_spin_lock_init+0x45/0x100
[ 245.232207][ T7558] ? __init_swait_queue_head+0xa9/0x150
[ 245.232236][ T7558] gfs2_sys_fs_add+0x234/0x450
[ 245.232263][ T7558] ? is_dynamic_key+0x1ac/0x1c0
[ 245.232285][ T7558] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 245.232313][ T7558] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 245.232351][ T7558] gfs2_fill_super+0x1388/0x21b0
[ 245.232392][ T7558] ? __pfx_gfs2_fill_super+0x10/0x10
[ 245.232422][ T7558] ? sb_set_blocksize+0x155/0x240
[ 245.232448][ T7558] ? setup_bdev_super+0x4c1/0x5b0
[ 245.232473][ T7558] get_tree_bdev_flags+0x40e/0x4d0
[ 245.232497][ T7558] ? __pfx_gfs2_fill_super+0x10/0x10
[ 245.232522][ T7558] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 245.232542][ T7558] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 245.232575][ T7558] gfs2_get_tree+0x51/0x1e0
[ 245.232603][ T7558] vfs_get_tree+0x92/0x2a0
[ 245.232627][ T7558] do_new_mount+0x31a/0xcf0
[ 245.232644][ T7558] ? apparmor_capable+0x137/0x1a0
[ 245.232665][ T7558] ? __pfx_do_new_mount+0x10/0x10
[ 245.232684][ T7558] ? ns_capable+0x8a/0xf0
[ 245.232709][ T7558] ? user_path_at+0xd4/0x160
[ 245.232735][ T7558] ? user_path_at+0xd4/0x160
[ 245.232757][ T7558] __se_sys_mount+0x313/0x410
[ 245.232781][ T7558] ? __pfx___se_sys_mount+0x10/0x10
[ 245.232805][ T7558] ? __x64_sys_mount+0x20/0xc0
[ 245.232826][ T7558] do_syscall_64+0xec/0xf80
[ 245.232846][ T7558] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 245.232863][ T7558] ? trace_irq_disable+0x37/0x100
[ 245.232879][ T7558] ? clear_bhb_loop+0x40/0x90
[ 245.232900][ T7558] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 245.232934][ T7558] RIP: 0033:0x7f1860b9038a
[ 245.232951][ T7558] 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
[ 245.232967][ T7558] RSP: 002b:00007f18601fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.232987][ T7558] RAX: ffffffffffffffda RBX: 00007f18601fdef0 RCX: 00007f1860b9038a
[ 245.232997][ T7558] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f18601fdeb0
[ 245.233007][ T7558] RBP: 000020000001f680 R08: 00007f18601fdef0 R09: 0000000000000084
[ 245.233015][ T7558] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 245.233024][ T7558] R13: 00007f18601fdeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 245.233047][ T7558]
[ 245.233074][ T7558] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.532389][ T7567] loop5: detected capacity change from 0 to 32768
[ 245.583345][ T7558] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.724162][ T7567] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.783384][ T7567] CPU: 0 UID: 0 PID: 7567 Comm: syz.5.194 Not tainted syzkaller #0 PREEMPT(full)
[ 245.783408][ T7567] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 245.783420][ T7567] Call Trace:
[ 245.783428][ T7567]
[ 245.783436][ T7567] dump_stack_lvl+0xe8/0x150
[ 245.783465][ T7567] sysfs_create_dir_ns+0x259/0x280
[ 245.783494][ T7567] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 245.783522][ T7567] ? do_raw_spin_unlock+0xf6/0x210
[ 245.783545][ T7567] kobject_add_internal+0x6ab/0xcc0
[ 245.783578][ T7567] kobject_init_and_add+0x125/0x190
[ 245.783615][ T7567] ? __pfx_kobject_init_and_add+0x10/0x10
[ 245.783639][ T7567] ? __raw_spin_lock_init+0x45/0x100
[ 245.783659][ T7567] ? __init_swait_queue_head+0xa9/0x150
[ 245.783688][ T7567] gfs2_sys_fs_add+0x234/0x450
[ 245.783709][ T7567] ? is_dynamic_key+0x1ac/0x1c0
[ 245.783730][ T7567] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 245.783760][ T7567] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 245.783799][ T7567] gfs2_fill_super+0x1388/0x21b0
[ 245.783840][ T7567] ? __pfx_gfs2_fill_super+0x10/0x10
[ 245.783869][ T7567] ? sb_set_blocksize+0x155/0x240
[ 245.783893][ T7567] ? setup_bdev_super+0x4c1/0x5b0
[ 245.783920][ T7567] get_tree_bdev_flags+0x40e/0x4d0
[ 245.783943][ T7567] ? __pfx_gfs2_fill_super+0x10/0x10
[ 245.783967][ T7567] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 245.783988][ T7567] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 245.784020][ T7567] gfs2_get_tree+0x51/0x1e0
[ 245.784048][ T7567] vfs_get_tree+0x92/0x2a0
[ 245.784074][ T7567] do_new_mount+0x31a/0xcf0
[ 245.784092][ T7567] ? apparmor_capable+0x137/0x1a0
[ 245.784113][ T7567] ? __pfx_do_new_mount+0x10/0x10
[ 245.784131][ T7567] ? ns_capable+0x8a/0xf0
[ 245.784155][ T7567] ? user_path_at+0xd4/0x160
[ 245.784180][ T7567] ? user_path_at+0xd4/0x160
[ 245.784208][ T7567] __se_sys_mount+0x313/0x410
[ 245.784234][ T7567] ? __pfx___se_sys_mount+0x10/0x10
[ 245.784259][ T7567] ? __x64_sys_mount+0x20/0xc0
[ 245.784280][ T7567] do_syscall_64+0xec/0xf80
[ 245.784300][ T7567] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 245.784317][ T7567] ? trace_irq_disable+0x37/0x100
[ 245.784332][ T7567] ? clear_bhb_loop+0x40/0x90
[ 245.784354][ T7567] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 245.784372][ T7567] RIP: 0033:0x7fa6a7d9038a
[ 245.784390][ T7567] 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
[ 245.784405][ T7567] RSP: 002b:00007fa6a8cdbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.784424][ T7567] RAX: ffffffffffffffda RBX: 00007fa6a8cdbef0 RCX: 00007fa6a7d9038a
[ 245.784437][ T7567] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa6a8cdbeb0
[ 245.784449][ T7567] RBP: 000020000001f680 R08: 00007fa6a8cdbef0 R09: 0000000000000084
[ 245.784461][ T7567] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 245.784473][ T7567] R13: 00007fa6a8cdbeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 245.784502][ T7567]
[ 245.784550][ T7567] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 246.143341][ T7567] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 246.945559][ T7579] loop4: detected capacity change from 0 to 32768
[ 246.977503][ T7575] loop1: detected capacity change from 0 to 32768
[ 246.985452][ T7579] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 246.993045][ T7579] CPU: 0 UID: 0 PID: 7579 Comm: syz.4.196 Not tainted syzkaller #0 PREEMPT(full)
[ 246.993068][ T7579] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 246.993079][ T7579] Call Trace:
[ 246.993088][ T7579]
[ 246.993096][ T7579] dump_stack_lvl+0xe8/0x150
[ 246.993125][ T7579] sysfs_create_dir_ns+0x259/0x280
[ 246.993155][ T7579] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 246.993183][ T7579] ? do_raw_spin_unlock+0xf6/0x210
[ 246.993206][ T7579] kobject_add_internal+0x6ab/0xcc0
[ 246.993237][ T7579] kobject_init_and_add+0x125/0x190
[ 246.993267][ T7579] ? __pfx_kobject_init_and_add+0x10/0x10
[ 246.993287][ T7579] ? __raw_spin_lock_init+0x45/0x100
[ 246.993303][ T7579] ? __init_swait_queue_head+0xa9/0x150
[ 246.993325][ T7579] gfs2_sys_fs_add+0x234/0x450
[ 246.993344][ T7579] ? is_dynamic_key+0x1ac/0x1c0
[ 246.993362][ T7579] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 246.993383][ T7579] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 246.993417][ T7579] gfs2_fill_super+0x1388/0x21b0
[ 246.993452][ T7579] ? __pfx_gfs2_fill_super+0x10/0x10
[ 246.993483][ T7579] ? sb_set_blocksize+0x155/0x240
[ 246.993507][ T7579] ? setup_bdev_super+0x4c1/0x5b0
[ 246.993530][ T7579] get_tree_bdev_flags+0x40e/0x4d0
[ 246.993553][ T7579] ? __pfx_gfs2_fill_super+0x10/0x10
[ 246.993574][ T7579] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 246.993593][ T7579] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 246.993622][ T7579] gfs2_get_tree+0x51/0x1e0
[ 246.993648][ T7579] vfs_get_tree+0x92/0x2a0
[ 246.993668][ T7579] do_new_mount+0x31a/0xcf0
[ 246.993683][ T7579] ? apparmor_capable+0x137/0x1a0
[ 246.993703][ T7579] ? __pfx_do_new_mount+0x10/0x10
[ 246.993719][ T7579] ? ns_capable+0x8a/0xf0
[ 246.993739][ T7579] ? user_path_at+0xd4/0x160
[ 246.993760][ T7579] ? user_path_at+0xd4/0x160
[ 246.993779][ T7579] __se_sys_mount+0x313/0x410
[ 246.993802][ T7579] ? __pfx___se_sys_mount+0x10/0x10
[ 246.993825][ T7579] ? __x64_sys_mount+0x20/0xc0
[ 246.993844][ T7579] do_syscall_64+0xec/0xf80
[ 246.993863][ T7579] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 246.993878][ T7579] ? trace_irq_disable+0x37/0x100
[ 246.993892][ T7579] ? clear_bhb_loop+0x40/0x90
[ 246.993911][ T7579] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 246.993929][ T7579] RIP: 0033:0x7fd998d9038a
[ 246.993945][ T7579] 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
[ 246.993959][ T7579] RSP: 002b:00007fd999b60e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 246.993977][ T7579] RAX: ffffffffffffffda RBX: 00007fd999b60ef0 RCX: 00007fd998d9038a
[ 246.993989][ T7579] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd999b60eb0
[ 246.994001][ T7579] RBP: 000020000001f680 R08: 00007fd999b60ef0 R09: 0000000000000084
[ 246.994013][ T7579] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 246.994024][ T7579] R13: 00007fd999b60eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 246.994062][ T7579]
[ 247.313492][ T7579] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 247.333392][ T7579] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 247.334408][ T7588] loop2: detected capacity change from 0 to 32768
[ 247.423881][ T7575] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.450277][ T7575] CPU: 1 UID: 0 PID: 7575 Comm: syz.1.195 Not tainted syzkaller #0 PREEMPT(full)
[ 247.450304][ T7575] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 247.450316][ T7575] Call Trace:
[ 247.450324][ T7575]
[ 247.450332][ T7575] dump_stack_lvl+0xe8/0x150
[ 247.450361][ T7575] sysfs_create_dir_ns+0x259/0x280
[ 247.450390][ T7575] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 247.450436][ T7575] ? do_raw_spin_unlock+0xf6/0x210
[ 247.450459][ T7575] kobject_add_internal+0x6ab/0xcc0
[ 247.450490][ T7575] kobject_init_and_add+0x125/0x190
[ 247.450519][ T7575] ? __pfx_kobject_init_and_add+0x10/0x10
[ 247.450542][ T7575] ? __raw_spin_lock_init+0x45/0x100
[ 247.450562][ T7575] ? __init_swait_queue_head+0xa9/0x150
[ 247.450592][ T7575] gfs2_sys_fs_add+0x234/0x450
[ 247.450612][ T7575] ? is_dynamic_key+0x1ac/0x1c0
[ 247.450634][ T7575] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 247.450663][ T7575] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 247.450703][ T7575] gfs2_fill_super+0x1388/0x21b0
[ 247.450743][ T7575] ? __pfx_gfs2_fill_super+0x10/0x10
[ 247.450773][ T7575] ? sb_set_blocksize+0x155/0x240
[ 247.450796][ T7575] ? setup_bdev_super+0x4c1/0x5b0
[ 247.450823][ T7575] get_tree_bdev_flags+0x40e/0x4d0
[ 247.450846][ T7575] ? __pfx_gfs2_fill_super+0x10/0x10
[ 247.450871][ T7575] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 247.450892][ T7575] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 247.450925][ T7575] gfs2_get_tree+0x51/0x1e0
[ 247.450954][ T7575] vfs_get_tree+0x92/0x2a0
[ 247.450980][ T7575] do_new_mount+0x31a/0xcf0
[ 247.450997][ T7575] ? apparmor_capable+0x137/0x1a0
[ 247.451019][ T7575] ? __pfx_do_new_mount+0x10/0x10
[ 247.451037][ T7575] ? ns_capable+0x8a/0xf0
[ 247.451067][ T7575] ? user_path_at+0xd4/0x160
[ 247.451092][ T7575] ? user_path_at+0xd4/0x160
[ 247.451115][ T7575] __se_sys_mount+0x313/0x410
[ 247.451140][ T7575] ? __pfx___se_sys_mount+0x10/0x10
[ 247.451165][ T7575] ? __x64_sys_mount+0x20/0xc0
[ 247.451187][ T7575] do_syscall_64+0xec/0xf80
[ 247.451206][ T7575] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 247.451223][ T7575] ? trace_irq_disable+0x37/0x100
[ 247.451239][ T7575] ? clear_bhb_loop+0x40/0x90
[ 247.451261][ T7575] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 247.451278][ T7575] RIP: 0033:0x7f1f4f99038a
[ 247.451295][ T7575] 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
[ 247.451311][ T7575] RSP: 002b:00007f1f5074ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.451331][ T7575] RAX: ffffffffffffffda RBX: 00007f1f5074cef0 RCX: 00007f1f4f99038a
[ 247.451344][ T7575] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f1f5074ceb0
[ 247.451357][ T7575] RBP: 000020000001f680 R08: 00007f1f5074cef0 R09: 0000000000000084
[ 247.451369][ T7575] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 247.451380][ T7575] R13: 00007f1f5074ceb0 R14: 000000000001f790 R15: 00002000000001c0
[ 247.451410][ T7575]
[ 247.451434][ T7575] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 247.470214][ T7590] loop5: detected capacity change from 0 to 32768
[ 247.479790][ T7586] loop3: detected capacity change from 0 to 32768
[ 247.513451][ T7575] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 247.528563][ T7588] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.601926][ T7582] Bluetooth: hci1: command 0x0406 tx timeout
[ 247.624591][ T7581] Bluetooth: hci0: command 0x0406 tx timeout
[ 247.625629][ T7582] Bluetooth: hci2: command 0x0406 tx timeout
[ 247.641918][ T7581] Bluetooth: hci3: command 0x0406 tx timeout
[ 247.645303][ T7582] Bluetooth: hci4: command 0x0406 tx timeout
[ 247.715161][ T7588] CPU: 1 UID: 0 PID: 7588 Comm: syz.2.198 Not tainted syzkaller #0 PREEMPT(full)
[ 247.715185][ T7588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 247.715195][ T7588] Call Trace:
[ 247.715202][ T7588]
[ 247.715210][ T7588] dump_stack_lvl+0xe8/0x150
[ 247.715237][ T7588] sysfs_create_dir_ns+0x259/0x280
[ 247.715266][ T7588] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 247.715291][ T7588] ? do_raw_spin_unlock+0xf6/0x210
[ 247.715313][ T7588] kobject_add_internal+0x6ab/0xcc0
[ 247.715343][ T7588] kobject_init_and_add+0x125/0x190
[ 247.715370][ T7588] ? __pfx_kobject_init_and_add+0x10/0x10
[ 247.715392][ T7588] ? __raw_spin_lock_init+0x45/0x100
[ 247.715410][ T7588] ? __init_swait_queue_head+0xa9/0x150
[ 247.715439][ T7588] gfs2_sys_fs_add+0x234/0x450
[ 247.715458][ T7588] ? is_dynamic_key+0x1ac/0x1c0
[ 247.715479][ T7588] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 247.715506][ T7588] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 247.715543][ T7588] gfs2_fill_super+0x1388/0x21b0
[ 247.715582][ T7588] ? __pfx_gfs2_fill_super+0x10/0x10
[ 247.715610][ T7588] ? sb_set_blocksize+0x155/0x240
[ 247.715633][ T7588] ? setup_bdev_super+0x4c1/0x5b0
[ 247.715657][ T7588] get_tree_bdev_flags+0x40e/0x4d0
[ 247.715679][ T7588] ? __pfx_gfs2_fill_super+0x10/0x10
[ 247.715703][ T7588] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 247.715723][ T7588] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 247.715753][ T7588] gfs2_get_tree+0x51/0x1e0
[ 247.715780][ T7588] vfs_get_tree+0x92/0x2a0
[ 247.715804][ T7588] do_new_mount+0x31a/0xcf0
[ 247.715820][ T7588] ? apparmor_capable+0x137/0x1a0
[ 247.715847][ T7588] ? __pfx_do_new_mount+0x10/0x10
[ 247.715864][ T7588] ? ns_capable+0x8a/0xf0
[ 247.715887][ T7588] ? user_path_at+0xd4/0x160
[ 247.715912][ T7588] ? user_path_at+0xd4/0x160
[ 247.715933][ T7588] __se_sys_mount+0x313/0x410
[ 247.715957][ T7588] ? __pfx___se_sys_mount+0x10/0x10
[ 247.715981][ T7588] ? __x64_sys_mount+0x20/0xc0
[ 247.716001][ T7588] do_syscall_64+0xec/0xf80
[ 247.716021][ T7588] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 247.716037][ T7588] ? trace_irq_disable+0x37/0x100
[ 247.716052][ T7588] ? clear_bhb_loop+0x40/0x90
[ 247.716073][ T7588] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 247.716089][ T7588] RIP: 0033:0x7f3e03d9038a
[ 247.716105][ T7588] 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
[ 247.716120][ T7588] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.716138][ T7588] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 247.716151][ T7588] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 247.716162][ T7588] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 247.716174][ T7588] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 247.716185][ T7588] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 247.716212][ T7588]
[ 247.716237][ T7588] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.142963][ T7588] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.165288][ T7586] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.172801][ T7586] CPU: 1 UID: 0 PID: 7586 Comm: syz.3.197 Not tainted syzkaller #0 PREEMPT(full)
[ 248.172825][ T7586] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 248.172837][ T7586] Call Trace:
[ 248.172845][ T7586]
[ 248.172853][ T7586] dump_stack_lvl+0xe8/0x150
[ 248.172881][ T7586] sysfs_create_dir_ns+0x259/0x280
[ 248.172911][ T7586] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 248.172934][ T7586] ? preempt_schedule_thunk+0x16/0x30
[ 248.172958][ T7586] kobject_add_internal+0x6ab/0xcc0
[ 248.172990][ T7586] kobject_init_and_add+0x125/0x190
[ 248.173018][ T7586] ? __pfx_kobject_init_and_add+0x10/0x10
[ 248.173049][ T7586] ? __raw_spin_lock_init+0x45/0x100
[ 248.173069][ T7586] ? __init_swait_queue_head+0xa9/0x150
[ 248.173099][ T7586] gfs2_sys_fs_add+0x234/0x450
[ 248.173120][ T7586] ? is_dynamic_key+0x1ac/0x1c0
[ 248.173141][ T7586] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 248.173171][ T7586] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 248.173209][ T7586] gfs2_fill_super+0x1388/0x21b0
[ 248.173250][ T7586] ? __pfx_gfs2_fill_super+0x10/0x10
[ 248.173285][ T7586] ? sb_set_blocksize+0x155/0x240
[ 248.173307][ T7586] ? setup_bdev_super+0x4c1/0x5b0
[ 248.173329][ T7586] get_tree_bdev_flags+0x40e/0x4d0
[ 248.173349][ T7586] ? __pfx_gfs2_fill_super+0x10/0x10
[ 248.173373][ T7586] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 248.173392][ T7586] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 248.173423][ T7586] gfs2_get_tree+0x51/0x1e0
[ 248.173449][ T7586] vfs_get_tree+0x92/0x2a0
[ 248.173472][ T7586] do_new_mount+0x31a/0xcf0
[ 248.173489][ T7586] ? apparmor_capable+0x137/0x1a0
[ 248.173510][ T7586] ? __pfx_do_new_mount+0x10/0x10
[ 248.173527][ T7586] ? ns_capable+0x8a/0xf0
[ 248.173550][ T7586] ? user_path_at+0xd4/0x160
[ 248.173574][ T7586] ? user_path_at+0xd4/0x160
[ 248.173601][ T7586] __se_sys_mount+0x313/0x410
[ 248.173626][ T7586] ? __pfx___se_sys_mount+0x10/0x10
[ 248.173652][ T7586] ? __x64_sys_mount+0x20/0xc0
[ 248.173673][ T7586] do_syscall_64+0xec/0xf80
[ 248.173694][ T7586] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 248.173710][ T7586] ? trace_irq_disable+0x37/0x100
[ 248.173726][ T7586] ? clear_bhb_loop+0x40/0x90
[ 248.173748][ T7586] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 248.173765][ T7586] RIP: 0033:0x7f1860b9038a
[ 248.173782][ T7586] 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
[ 248.173797][ T7586] RSP: 002b:00007f18601fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.173816][ T7586] RAX: ffffffffffffffda RBX: 00007f18601fdef0 RCX: 00007f1860b9038a
[ 248.173829][ T7586] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f18601fdeb0
[ 248.173843][ T7586] RBP: 000020000001f680 R08: 00007f18601fdef0 R09: 0000000000000084
[ 248.173855][ T7586] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 248.173866][ T7586] R13: 00007f18601fdeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 248.173893][ T7586]
[ 248.185299][ T7590] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.194240][ T7586] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.254367][ T7590] CPU: 0 UID: 0 PID: 7590 Comm: syz.5.199 Not tainted syzkaller #0 PREEMPT(full)
[ 248.254401][ T7590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 248.254412][ T7590] Call Trace:
[ 248.254420][ T7590]
[ 248.254427][ T7590] dump_stack_lvl+0xe8/0x150
[ 248.254455][ T7590] sysfs_create_dir_ns+0x259/0x280
[ 248.254482][ T7590] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 248.254509][ T7590] ? do_raw_spin_unlock+0xf6/0x210
[ 248.254530][ T7590] kobject_add_internal+0x6ab/0xcc0
[ 248.254560][ T7590] kobject_init_and_add+0x125/0x190
[ 248.254586][ T7590] ? __pfx_kobject_init_and_add+0x10/0x10
[ 248.254609][ T7590] ? __raw_spin_lock_init+0x45/0x100
[ 248.254627][ T7590] ? __init_swait_queue_head+0xa9/0x150
[ 248.254656][ T7590] gfs2_sys_fs_add+0x234/0x450
[ 248.254675][ T7590] ? is_dynamic_key+0x1ac/0x1c0
[ 248.254703][ T7590] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 248.254731][ T7590] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 248.254768][ T7590] gfs2_fill_super+0x1388/0x21b0
[ 248.254806][ T7590] ? __pfx_gfs2_fill_super+0x10/0x10
[ 248.254835][ T7590] ? sb_set_blocksize+0x155/0x240
[ 248.254858][ T7590] ? setup_bdev_super+0x4c1/0x5b0
[ 248.254884][ T7590] get_tree_bdev_flags+0x40e/0x4d0
[ 248.254906][ T7590] ? __pfx_gfs2_fill_super+0x10/0x10
[ 248.254931][ T7590] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 248.254950][ T7590] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 248.254980][ T7590] gfs2_get_tree+0x51/0x1e0
[ 248.255007][ T7590] vfs_get_tree+0x92/0x2a0
[ 248.255031][ T7590] do_new_mount+0x31a/0xcf0
[ 248.255047][ T7590] ? apparmor_capable+0x137/0x1a0
[ 248.255068][ T7590] ? __pfx_do_new_mount+0x10/0x10
[ 248.255085][ T7590] ? ns_capable+0x8a/0xf0
[ 248.255109][ T7590] ? user_path_at+0xd4/0x160
[ 248.255133][ T7590] ? user_path_at+0xd4/0x160
[ 248.255154][ T7590] __se_sys_mount+0x313/0x410
[ 248.255178][ T7590] ? __pfx___se_sys_mount+0x10/0x10
[ 248.255202][ T7590] ? __x64_sys_mount+0x20/0xc0
[ 248.255222][ T7590] do_syscall_64+0xec/0xf80
[ 248.255241][ T7590] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 248.255257][ T7590] ? trace_irq_disable+0x37/0x100
[ 248.255272][ T7590] ? clear_bhb_loop+0x40/0x90
[ 248.255293][ T7590] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 248.255309][ T7590] RIP: 0033:0x7fa6a7d9038a
[ 248.255326][ T7590] 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
[ 248.255341][ T7590] RSP: 002b:00007fa6a8cdbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.255360][ T7590] RAX: ffffffffffffffda RBX: 00007fa6a8cdbef0 RCX: 00007fa6a7d9038a
[ 248.255372][ T7590] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa6a8cdbeb0
[ 248.255384][ T7590] RBP: 000020000001f680 R08: 00007fa6a8cdbef0 R09: 0000000000000084
[ 248.255396][ T7590] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 248.255407][ T7590] R13: 00007fa6a8cdbeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 248.255435][ T7590]
[ 248.255458][ T7590] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.260275][ T7586] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.354865][ T7590] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.743419][ T7603] loop4: detected capacity change from 0 to 32768
[ 249.791289][ T7603] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.812732][ T7603] CPU: 1 UID: 0 PID: 7603 Comm: syz.4.201 Not tainted syzkaller #0 PREEMPT(full)
[ 249.812758][ T7603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 249.812770][ T7603] Call Trace:
[ 249.812778][ T7603]
[ 249.812786][ T7603] dump_stack_lvl+0xe8/0x150
[ 249.812815][ T7603] sysfs_create_dir_ns+0x259/0x280
[ 249.812852][ T7603] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 249.812880][ T7603] ? do_raw_spin_unlock+0xf6/0x210
[ 249.812902][ T7603] kobject_add_internal+0x6ab/0xcc0
[ 249.812935][ T7603] kobject_init_and_add+0x125/0x190
[ 249.812963][ T7603] ? __pfx_kobject_init_and_add+0x10/0x10
[ 249.812986][ T7603] ? __raw_spin_lock_init+0x45/0x100
[ 249.813006][ T7603] ? __init_swait_queue_head+0xa9/0x150
[ 249.813037][ T7603] gfs2_sys_fs_add+0x234/0x450
[ 249.813057][ T7603] ? is_dynamic_key+0x1ac/0x1c0
[ 249.813079][ T7603] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 249.813108][ T7603] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 249.813148][ T7603] gfs2_fill_super+0x1388/0x21b0
[ 249.813189][ T7603] ? __pfx_gfs2_fill_super+0x10/0x10
[ 249.813219][ T7603] ? sb_set_blocksize+0x155/0x240
[ 249.813244][ T7603] ? setup_bdev_super+0x4c1/0x5b0
[ 249.813271][ T7603] get_tree_bdev_flags+0x40e/0x4d0
[ 249.813290][ T7603] ? __pfx_gfs2_fill_super+0x10/0x10
[ 249.813312][ T7603] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 249.813331][ T7603] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 249.813361][ T7603] gfs2_get_tree+0x51/0x1e0
[ 249.813390][ T7603] vfs_get_tree+0x92/0x2a0
[ 249.813415][ T7603] do_new_mount+0x31a/0xcf0
[ 249.813430][ T7603] ? apparmor_capable+0x137/0x1a0
[ 249.813450][ T7603] ? __pfx_do_new_mount+0x10/0x10
[ 249.813465][ T7603] ? ns_capable+0x8a/0xf0
[ 249.813488][ T7603] ? user_path_at+0xd4/0x160
[ 249.813513][ T7603] ? user_path_at+0xd4/0x160
[ 249.813535][ T7603] __se_sys_mount+0x313/0x410
[ 249.813561][ T7603] ? __pfx___se_sys_mount+0x10/0x10
[ 249.813584][ T7603] ? __x64_sys_mount+0x20/0xc0
[ 249.813605][ T7603] do_syscall_64+0xec/0xf80
[ 249.813624][ T7603] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 249.813641][ T7603] ? trace_irq_disable+0x37/0x100
[ 249.813657][ T7603] ? clear_bhb_loop+0x40/0x90
[ 249.813678][ T7603] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 249.813695][ T7603] RIP: 0033:0x7fd998d9038a
[ 249.813713][ T7603] 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
[ 249.813729][ T7603] RSP: 002b:00007fd999b60e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.813747][ T7603] RAX: ffffffffffffffda RBX: 00007fd999b60ef0 RCX: 00007fd998d9038a
[ 249.813760][ T7603] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd999b60eb0
[ 249.813772][ T7603] RBP: 000020000001f680 R08: 00007fd999b60ef0 R09: 0000000000000084
[ 249.813784][ T7603] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 249.813796][ T7603] R13: 00007fd999b60eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 249.813825][ T7603]
[ 250.153432][ T7603] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.193772][ T7603] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.286586][ T7611] loop5: detected capacity change from 0 to 32768
[ 250.337844][ T7605] loop1: detected capacity change from 0 to 32768
[ 250.340341][ T7611] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.351833][ T7611] CPU: 1 UID: 0 PID: 7611 Comm: syz.5.204 Not tainted syzkaller #0 PREEMPT(full)
[ 250.351863][ T7611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 250.351875][ T7611] Call Trace:
[ 250.351883][ T7611]
[ 250.351891][ T7611] dump_stack_lvl+0xe8/0x150
[ 250.351919][ T7611] sysfs_create_dir_ns+0x259/0x280
[ 250.351949][ T7611] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 250.351975][ T7611] ? do_raw_spin_unlock+0xf6/0x210
[ 250.351998][ T7611] kobject_add_internal+0x6ab/0xcc0
[ 250.352031][ T7611] kobject_init_and_add+0x125/0x190
[ 250.352058][ T7611] ? __pfx_kobject_init_and_add+0x10/0x10
[ 250.352082][ T7611] ? __raw_spin_lock_init+0x45/0x100
[ 250.352102][ T7611] ? __init_swait_queue_head+0xa9/0x150
[ 250.352131][ T7611] gfs2_sys_fs_add+0x234/0x450
[ 250.352152][ T7611] ? is_dynamic_key+0x1ac/0x1c0
[ 250.352174][ T7611] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 250.352203][ T7611] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 250.352242][ T7611] gfs2_fill_super+0x1388/0x21b0
[ 250.352283][ T7611] ? __pfx_gfs2_fill_super+0x10/0x10
[ 250.352313][ T7611] ? sb_set_blocksize+0x155/0x240
[ 250.352338][ T7611] ? setup_bdev_super+0x4c1/0x5b0
[ 250.352364][ T7611] get_tree_bdev_flags+0x40e/0x4d0
[ 250.352387][ T7611] ? __pfx_gfs2_fill_super+0x10/0x10
[ 250.352412][ T7611] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 250.352437][ T7611] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 250.352469][ T7611] gfs2_get_tree+0x51/0x1e0
[ 250.352498][ T7611] vfs_get_tree+0x92/0x2a0
[ 250.352524][ T7611] do_new_mount+0x31a/0xcf0
[ 250.352558][ T7611] ? apparmor_capable+0x137/0x1a0
[ 250.352580][ T7611] ? __pfx_do_new_mount+0x10/0x10
[ 250.352598][ T7611] ? ns_capable+0x8a/0xf0
[ 250.352617][ T7611] ? user_path_at+0xd4/0x160
[ 250.352636][ T7611] ? user_path_at+0xd4/0x160
[ 250.352654][ T7611] __se_sys_mount+0x313/0x410
[ 250.352679][ T7611] ? __pfx___se_sys_mount+0x10/0x10
[ 250.352705][ T7611] ? __x64_sys_mount+0x20/0xc0
[ 250.352726][ T7611] do_syscall_64+0xec/0xf80
[ 250.352746][ T7611] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 250.352763][ T7611] ? trace_irq_disable+0x37/0x100
[ 250.352778][ T7611] ? clear_bhb_loop+0x40/0x90
[ 250.352800][ T7611] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 250.352817][ T7611] RIP: 0033:0x7fa6a7d9038a
[ 250.352834][ T7611] 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
[ 250.352856][ T7611] RSP: 002b:00007fa6a8cdbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.352875][ T7611] RAX: ffffffffffffffda RBX: 00007fa6a8cdbef0 RCX: 00007fa6a7d9038a
[ 250.352888][ T7611] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa6a8cdbeb0
[ 250.352900][ T7611] RBP: 000020000001f680 R08: 00007fa6a8cdbef0 R09: 0000000000000084
[ 250.352912][ T7611] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 250.352925][ T7611] R13: 00007fa6a8cdbeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 250.352954][ T7611]
[ 250.352979][ T7611] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.413959][ T7609] loop2: detected capacity change from 0 to 32768
[ 250.417672][ T7611] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.464001][ T7605] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.518438][ T7607] loop3: detected capacity change from 0 to 32768
[ 250.523820][ T7605] CPU: 0 UID: 0 PID: 7605 Comm: syz.1.200 Not tainted syzkaller #0 PREEMPT(full)
[ 250.523841][ T7605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 250.523852][ T7605] Call Trace:
[ 250.523859][ T7605]
[ 250.523866][ T7605] dump_stack_lvl+0xe8/0x150
[ 250.523894][ T7605] sysfs_create_dir_ns+0x259/0x280
[ 250.523922][ T7605] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 250.523947][ T7605] ? do_raw_spin_unlock+0xf6/0x210
[ 250.523969][ T7605] kobject_add_internal+0x6ab/0xcc0
[ 250.523998][ T7605] kobject_init_and_add+0x125/0x190
[ 250.524025][ T7605] ? __pfx_kobject_init_and_add+0x10/0x10
[ 250.524048][ T7605] ? __raw_spin_lock_init+0x45/0x100
[ 250.524066][ T7605] ? __init_swait_queue_head+0xa9/0x150
[ 250.524095][ T7605] gfs2_sys_fs_add+0x234/0x450
[ 250.524114][ T7605] ? is_dynamic_key+0x1ac/0x1c0
[ 250.524136][ T7605] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 250.524163][ T7605] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 250.524200][ T7605] gfs2_fill_super+0x1388/0x21b0
[ 250.524239][ T7605] ? __pfx_gfs2_fill_super+0x10/0x10
[ 250.524268][ T7605] ? sb_set_blocksize+0x155/0x240
[ 250.524291][ T7605] ? setup_bdev_super+0x4c1/0x5b0
[ 250.524316][ T7605] get_tree_bdev_flags+0x40e/0x4d0
[ 250.524339][ T7605] ? __pfx_gfs2_fill_super+0x10/0x10
[ 250.524363][ T7605] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 250.524383][ T7605] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 250.524413][ T7605] gfs2_get_tree+0x51/0x1e0
[ 250.524441][ T7605] vfs_get_tree+0x92/0x2a0
[ 250.524461][ T7605] do_new_mount+0x31a/0xcf0
[ 250.524475][ T7605] ? apparmor_capable+0x137/0x1a0
[ 250.524494][ T7605] ? __pfx_do_new_mount+0x10/0x10
[ 250.524511][ T7605] ? ns_capable+0x8a/0xf0
[ 250.524534][ T7605] ? user_path_at+0xd4/0x160
[ 250.524558][ T7605] ? user_path_at+0xd4/0x160
[ 250.524580][ T7605] __se_sys_mount+0x313/0x410
[ 250.524611][ T7605] ? __pfx___se_sys_mount+0x10/0x10
[ 250.524635][ T7605] ? __x64_sys_mount+0x20/0xc0
[ 250.524655][ T7605] do_syscall_64+0xec/0xf80
2026/01/17 18:07:20 executed programs: 198
[ 250.524675][ T7605] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 250.524691][ T7605] ? trace_irq_disable+0x37/0x100
[ 250.524706][ T7605] ? clear_bhb_loop+0x40/0x90
[ 250.524726][ T7605] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 250.524743][ T7605] RIP: 0033:0x7f1f4f99038a
[ 250.524760][ T7605] 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
[ 250.524775][ T7605] RSP: 002b:00007f1f5074ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.524793][ T7605] RAX: ffffffffffffffda RBX: 00007f1f5074cef0 RCX: 00007f1f4f99038a
[ 250.524806][ T7605] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f1f5074ceb0
[ 250.524817][ T7605] RBP: 000020000001f680 R08: 00007f1f5074cef0 R09: 0000000000000084
[ 250.524829][ T7605] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 250.524840][ T7605] R13: 00007f1f5074ceb0 R14: 000000000001f790 R15: 00002000000001c0
[ 250.524867][ T7605]
[ 250.524892][ T7605] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.769037][ T7609] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.822847][ T7605] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.833378][ T7609] CPU: 1 UID: 0 PID: 7609 Comm: syz.2.203 Not tainted syzkaller #0 PREEMPT(full)
[ 250.833402][ T7609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 250.833413][ T7609] Call Trace:
[ 250.833421][ T7609]
[ 250.833429][ T7609] dump_stack_lvl+0xe8/0x150
[ 250.833455][ T7609] sysfs_create_dir_ns+0x259/0x280
[ 250.833483][ T7609] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 250.833509][ T7609] ? do_raw_spin_unlock+0xf6/0x210
[ 250.833536][ T7609] kobject_add_internal+0x6ab/0xcc0
[ 250.833566][ T7609] kobject_init_and_add+0x125/0x190
[ 250.833593][ T7609] ? __pfx_kobject_init_and_add+0x10/0x10
[ 250.833616][ T7609] ? __raw_spin_lock_init+0x45/0x100
[ 250.833634][ T7609] ? __init_swait_queue_head+0xa9/0x150
[ 250.833662][ T7609] gfs2_sys_fs_add+0x234/0x450
[ 250.833682][ T7609] ? is_dynamic_key+0x1ac/0x1c0
[ 250.833702][ T7609] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 250.833730][ T7609] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 250.833766][ T7609] gfs2_fill_super+0x1388/0x21b0
[ 250.833805][ T7609] ? __pfx_gfs2_fill_super+0x10/0x10
[ 250.833834][ T7609] ? sb_set_blocksize+0x155/0x240
[ 250.833856][ T7609] ? setup_bdev_super+0x4c1/0x5b0
[ 250.833881][ T7609] get_tree_bdev_flags+0x40e/0x4d0
[ 250.833902][ T7609] ? __pfx_gfs2_fill_super+0x10/0x10
[ 250.833927][ T7609] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 250.833947][ T7609] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 250.833978][ T7609] gfs2_get_tree+0x51/0x1e0
[ 250.834005][ T7609] vfs_get_tree+0x92/0x2a0
[ 250.834029][ T7609] do_new_mount+0x31a/0xcf0
[ 250.834046][ T7609] ? apparmor_capable+0x137/0x1a0
[ 250.834066][ T7609] ? __pfx_do_new_mount+0x10/0x10
[ 250.834084][ T7609] ? ns_capable+0x8a/0xf0
[ 250.834107][ T7609] ? user_path_at+0xd4/0x160
[ 250.834131][ T7609] ? user_path_at+0xd4/0x160
[ 250.834153][ T7609] __se_sys_mount+0x313/0x410
[ 250.834176][ T7609] ? __pfx___se_sys_mount+0x10/0x10
[ 250.834201][ T7609] ? __x64_sys_mount+0x20/0xc0
[ 250.834220][ T7609] do_syscall_64+0xec/0xf80
[ 250.834240][ T7609] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 250.834256][ T7609] ? trace_irq_disable+0x37/0x100
[ 250.834270][ T7609] ? clear_bhb_loop+0x40/0x90
[ 250.834291][ T7609] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 250.834307][ T7609] RIP: 0033:0x7f3e03d9038a
[ 250.834324][ T7609] 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
[ 250.834339][ T7609] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.834357][ T7609] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 250.834369][ T7609] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 250.834381][ T7609] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 250.834393][ T7609] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 250.834404][ T7609] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 250.834432][ T7609]
[ 250.834455][ T7609] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.345053][ T7609] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.380778][ T7607] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.467798][ T7607] CPU: 0 UID: 0 PID: 7607 Comm: syz.3.202 Not tainted syzkaller #0 PREEMPT(full)
[ 251.467823][ T7607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 251.467835][ T7607] Call Trace:
[ 251.467843][ T7607]
[ 251.467850][ T7607] dump_stack_lvl+0xe8/0x150
[ 251.467878][ T7607] sysfs_create_dir_ns+0x259/0x280
[ 251.467906][ T7607] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 251.467933][ T7607] ? do_raw_spin_unlock+0xf6/0x210
[ 251.467955][ T7607] kobject_add_internal+0x6ab/0xcc0
[ 251.467986][ T7607] kobject_init_and_add+0x125/0x190
[ 251.468014][ T7607] ? __pfx_kobject_init_and_add+0x10/0x10
[ 251.468038][ T7607] ? __raw_spin_lock_init+0x45/0x100
[ 251.468058][ T7607] ? __init_swait_queue_head+0xa9/0x150
[ 251.468087][ T7607] gfs2_sys_fs_add+0x234/0x450
[ 251.468108][ T7607] ? is_dynamic_key+0x1ac/0x1c0
[ 251.468130][ T7607] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 251.468159][ T7607] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 251.468198][ T7607] gfs2_fill_super+0x1388/0x21b0
[ 251.468239][ T7607] ? __pfx_gfs2_fill_super+0x10/0x10
[ 251.468268][ T7607] ? sb_set_blocksize+0x155/0x240
[ 251.468292][ T7607] ? setup_bdev_super+0x4c1/0x5b0
[ 251.468318][ T7607] get_tree_bdev_flags+0x40e/0x4d0
[ 251.468341][ T7607] ? __pfx_gfs2_fill_super+0x10/0x10
[ 251.468366][ T7607] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 251.468387][ T7607] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 251.468420][ T7607] gfs2_get_tree+0x51/0x1e0
[ 251.468449][ T7607] vfs_get_tree+0x92/0x2a0
[ 251.468474][ T7607] do_new_mount+0x31a/0xcf0
[ 251.468490][ T7607] ? apparmor_capable+0x137/0x1a0
[ 251.468515][ T7607] ? __pfx_do_new_mount+0x10/0x10
[ 251.468534][ T7607] ? ns_capable+0x8a/0xf0
[ 251.468558][ T7607] ? user_path_at+0xd4/0x160
[ 251.468583][ T7607] ? user_path_at+0xd4/0x160
[ 251.468605][ T7607] __se_sys_mount+0x313/0x410
[ 251.468630][ T7607] ? __pfx___se_sys_mount+0x10/0x10
[ 251.468656][ T7607] ? __x64_sys_mount+0x20/0xc0
[ 251.468677][ T7607] do_syscall_64+0xec/0xf80
[ 251.468697][ T7607] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 251.468719][ T7607] ? trace_irq_disable+0x37/0x100
[ 251.468735][ T7607] ? clear_bhb_loop+0x40/0x90
[ 251.468757][ T7607] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 251.468774][ T7607] RIP: 0033:0x7f1860b9038a
[ 251.468791][ T7607] 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
[ 251.468806][ T7607] RSP: 002b:00007f18601fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.468825][ T7607] RAX: ffffffffffffffda RBX: 00007f18601fdef0 RCX: 00007f1860b9038a
[ 251.468839][ T7607] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f18601fdeb0
[ 251.468851][ T7607] RBP: 000020000001f680 R08: 00007f18601fdef0 R09: 0000000000000084
[ 251.468862][ T7607] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 251.468874][ T7607] R13: 00007f18601fdeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 251.468903][ T7607]
[ 251.468992][ T7607] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.829225][ T7607] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.699388][ T7624] loop4: detected capacity change from 0 to 32768
[ 252.725687][ T7626] loop5: detected capacity change from 0 to 32768
[ 252.789156][ T7626] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.808776][ T7624] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.829600][ T7626] CPU: 0 UID: 0 PID: 7626 Comm: syz.5.206 Not tainted syzkaller #0 PREEMPT(full)
[ 252.829632][ T7626] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 252.829644][ T7626] Call Trace:
[ 252.829651][ T7626]
[ 252.829659][ T7626] dump_stack_lvl+0xe8/0x150
[ 252.829688][ T7626] sysfs_create_dir_ns+0x259/0x280
[ 252.829718][ T7626] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 252.829744][ T7626] ? do_raw_spin_unlock+0xf6/0x210
[ 252.829766][ T7626] kobject_add_internal+0x6ab/0xcc0
[ 252.829798][ T7626] kobject_init_and_add+0x125/0x190
[ 252.829825][ T7626] ? __pfx_kobject_init_and_add+0x10/0x10
[ 252.829849][ T7626] ? __raw_spin_lock_init+0x45/0x100
[ 252.829869][ T7626] ? __init_swait_queue_head+0xa9/0x150
[ 252.829899][ T7626] gfs2_sys_fs_add+0x234/0x450
[ 252.829919][ T7626] ? is_dynamic_key+0x1ac/0x1c0
[ 252.829941][ T7626] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 252.829971][ T7626] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 252.830009][ T7626] gfs2_fill_super+0x1388/0x21b0
[ 252.830050][ T7626] ? __pfx_gfs2_fill_super+0x10/0x10
[ 252.830080][ T7626] ? sb_set_blocksize+0x155/0x240
[ 252.830104][ T7626] ? setup_bdev_super+0x4c1/0x5b0
[ 252.830130][ T7626] get_tree_bdev_flags+0x40e/0x4d0
[ 252.830153][ T7626] ? __pfx_gfs2_fill_super+0x10/0x10
[ 252.830178][ T7626] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 252.830200][ T7626] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 252.830231][ T7626] gfs2_get_tree+0x51/0x1e0
[ 252.830261][ T7626] vfs_get_tree+0x92/0x2a0
[ 252.830286][ T7626] do_new_mount+0x31a/0xcf0
[ 252.830303][ T7626] ? apparmor_capable+0x137/0x1a0
[ 252.830325][ T7626] ? __pfx_do_new_mount+0x10/0x10
[ 252.830344][ T7626] ? ns_capable+0x8a/0xf0
[ 252.830368][ T7626] ? user_path_at+0xd4/0x160
[ 252.830393][ T7626] ? user_path_at+0xd4/0x160
[ 252.830416][ T7626] __se_sys_mount+0x313/0x410
[ 252.830441][ T7626] ? __pfx___se_sys_mount+0x10/0x10
[ 252.830466][ T7626] ? __x64_sys_mount+0x20/0xc0
[ 252.830487][ T7626] do_syscall_64+0xec/0xf80
[ 252.830507][ T7626] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 252.830524][ T7626] ? trace_irq_disable+0x37/0x100
[ 252.830539][ T7626] ? clear_bhb_loop+0x40/0x90
[ 252.830561][ T7626] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 252.830578][ T7626] RIP: 0033:0x7fa6a7d9038a
[ 252.830596][ T7626] 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
[ 252.830611][ T7626] RSP: 002b:00007fa6a8cdbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.830636][ T7626] RAX: ffffffffffffffda RBX: 00007fa6a8cdbef0 RCX: 00007fa6a7d9038a
[ 252.830649][ T7626] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa6a8cdbeb0
[ 252.830662][ T7626] RBP: 000020000001f680 R08: 00007fa6a8cdbef0 R09: 0000000000000084
[ 252.830673][ T7626] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 252.830685][ T7626] R13: 00007fa6a8cdbeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 252.830714][ T7626]
[ 252.830739][ T7626] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.843466][ T7624] CPU: 1 UID: 0 PID: 7624 Comm: syz.4.205 Not tainted syzkaller #0 PREEMPT(full)
[ 252.843492][ T7624] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 252.843503][ T7624] Call Trace:
[ 252.843510][ T7624]
[ 252.843517][ T7624] dump_stack_lvl+0xe8/0x150
[ 252.843548][ T7624] sysfs_create_dir_ns+0x259/0x280
[ 252.843577][ T7624] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 252.843603][ T7624] ? do_raw_spin_unlock+0xf6/0x210
[ 252.843623][ T7624] kobject_add_internal+0x6ab/0xcc0
[ 252.843655][ T7624] kobject_init_and_add+0x125/0x190
[ 252.843681][ T7624] ? __pfx_kobject_init_and_add+0x10/0x10
[ 252.843703][ T7624] ? __raw_spin_lock_init+0x45/0x100
[ 252.843721][ T7624] ? __init_swait_queue_head+0xa9/0x150
[ 252.843751][ T7624] gfs2_sys_fs_add+0x234/0x450
[ 252.843770][ T7624] ? is_dynamic_key+0x1ac/0x1c0
[ 252.843791][ T7624] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 252.843818][ T7624] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 252.843855][ T7624] gfs2_fill_super+0x1388/0x21b0
[ 252.843894][ T7624] ? __pfx_gfs2_fill_super+0x10/0x10
[ 252.843922][ T7624] ? sb_set_blocksize+0x155/0x240
[ 252.843945][ T7624] ? setup_bdev_super+0x4c1/0x5b0
[ 252.843970][ T7624] get_tree_bdev_flags+0x40e/0x4d0
[ 252.843992][ T7624] ? __pfx_gfs2_fill_super+0x10/0x10
[ 252.844016][ T7624] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 252.844036][ T7624] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 252.844066][ T7624] gfs2_get_tree+0x51/0x1e0
[ 252.844094][ T7624] vfs_get_tree+0x92/0x2a0
[ 252.844118][ T7624] do_new_mount+0x31a/0xcf0
[ 252.844134][ T7624] ? apparmor_capable+0x137/0x1a0
[ 252.844156][ T7624] ? __pfx_do_new_mount+0x10/0x10
[ 252.844173][ T7624] ? ns_capable+0x8a/0xf0
[ 252.844196][ T7624] ? user_path_at+0xd4/0x160
[ 252.844219][ T7624] ? user_path_at+0xd4/0x160
[ 252.844241][ T7624] __se_sys_mount+0x313/0x410
[ 252.844264][ T7624] ? __pfx___se_sys_mount+0x10/0x10
[ 252.844288][ T7624] ? __x64_sys_mount+0x20/0xc0
[ 252.844309][ T7624] do_syscall_64+0xec/0xf80
[ 252.844328][ T7624] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 252.844344][ T7624] ? trace_irq_disable+0x37/0x100
[ 252.844359][ T7624] ? clear_bhb_loop+0x40/0x90
[ 252.844385][ T7624] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 252.844401][ T7624] RIP: 0033:0x7fd998d9038a
[ 252.844418][ T7624] 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
[ 252.844433][ T7624] RSP: 002b:00007fd999b60e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.844451][ T7624] RAX: ffffffffffffffda RBX: 00007fd999b60ef0 RCX: 00007fd998d9038a
[ 252.844464][ T7624] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd999b60eb0
[ 252.844475][ T7624] RBP: 000020000001f680 R08: 00007fd999b60ef0 R09: 0000000000000084
[ 252.844487][ T7624] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 252.844498][ T7624] R13: 00007fd999b60eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 252.844524][ T7624]
[ 252.844616][ T7624] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.850280][ T7626] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.894847][ T7624] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.997555][ T7628] loop2: detected capacity change from 0 to 32768
[ 253.591219][ T7628] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.663364][ T7628] CPU: 1 UID: 0 PID: 7628 Comm: syz.2.207 Not tainted syzkaller #0 PREEMPT(full)
[ 253.663388][ T7628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 253.663398][ T7628] Call Trace:
[ 253.663414][ T7628]
[ 253.663422][ T7628] dump_stack_lvl+0xe8/0x150
[ 253.663449][ T7628] sysfs_create_dir_ns+0x259/0x280
[ 253.663478][ T7628] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 253.663505][ T7628] ? do_raw_spin_unlock+0xf6/0x210
[ 253.663528][ T7628] kobject_add_internal+0x6ab/0xcc0
[ 253.663559][ T7628] kobject_init_and_add+0x125/0x190
[ 253.663587][ T7628] ? __pfx_kobject_init_and_add+0x10/0x10
[ 253.663611][ T7628] ? __raw_spin_lock_init+0x45/0x100
[ 253.663630][ T7628] ? __init_swait_queue_head+0xa9/0x150
[ 253.663660][ T7628] gfs2_sys_fs_add+0x234/0x450
[ 253.663681][ T7628] ? is_dynamic_key+0x1ac/0x1c0
[ 253.663702][ T7628] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 253.663731][ T7628] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 253.663771][ T7628] gfs2_fill_super+0x1388/0x21b0
[ 253.663811][ T7628] ? __pfx_gfs2_fill_super+0x10/0x10
[ 253.663841][ T7628] ? sb_set_blocksize+0x155/0x240
[ 253.663865][ T7628] ? setup_bdev_super+0x4c1/0x5b0
[ 253.663892][ T7628] get_tree_bdev_flags+0x40e/0x4d0
[ 253.663914][ T7628] ? __pfx_gfs2_fill_super+0x10/0x10
[ 253.663940][ T7628] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 253.663961][ T7628] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 253.663991][ T7628] gfs2_get_tree+0x51/0x1e0
[ 253.664016][ T7628] vfs_get_tree+0x92/0x2a0
[ 253.664037][ T7628] do_new_mount+0x31a/0xcf0
[ 253.664053][ T7628] ? apparmor_capable+0x137/0x1a0
[ 253.664072][ T7628] ? __pfx_do_new_mount+0x10/0x10
[ 253.664089][ T7628] ? ns_capable+0x8a/0xf0
[ 253.664110][ T7628] ? user_path_at+0xd4/0x160
[ 253.664131][ T7628] ? user_path_at+0xd4/0x160
[ 253.664151][ T7628] __se_sys_mount+0x313/0x410
[ 253.664174][ T7628] ? __pfx___se_sys_mount+0x10/0x10
[ 253.664199][ T7628] ? __x64_sys_mount+0x20/0xc0
[ 253.664218][ T7628] do_syscall_64+0xec/0xf80
[ 253.664235][ T7628] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 253.664249][ T7628] ? trace_irq_disable+0x37/0x100
[ 253.664264][ T7628] ? clear_bhb_loop+0x40/0x90
[ 253.664284][ T7628] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 253.664300][ T7628] RIP: 0033:0x7f3e03d9038a
[ 253.664318][ T7628] 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
[ 253.664334][ T7628] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.664353][ T7628] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 253.664365][ T7628] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 253.664377][ T7628] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 253.664388][ T7628] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 253.664399][ T7628] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 253.664432][ T7628]
[ 253.664457][ T7628] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.006879][ T7631] loop1: detected capacity change from 0 to 32768
[ 254.013437][ T7628] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.025043][ T7632] loop3: detected capacity change from 0 to 32768
[ 254.047416][ T7631] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.083926][ T7632] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.091467][ T7631] CPU: 1 UID: 0 PID: 7631 Comm: syz.1.208 Not tainted syzkaller #0 PREEMPT(full)
[ 254.091491][ T7631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 254.091502][ T7631] Call Trace:
[ 254.091510][ T7631]
[ 254.091518][ T7631] dump_stack_lvl+0xe8/0x150
[ 254.091546][ T7631] sysfs_create_dir_ns+0x259/0x280
[ 254.091574][ T7631] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 254.091600][ T7631] ? do_raw_spin_unlock+0xf6/0x210
[ 254.091622][ T7631] kobject_add_internal+0x6ab/0xcc0
[ 254.091653][ T7631] kobject_init_and_add+0x125/0x190
[ 254.091681][ T7631] ? __pfx_kobject_init_and_add+0x10/0x10
[ 254.091704][ T7631] ? __raw_spin_lock_init+0x45/0x100
[ 254.091721][ T7631] ? __init_swait_queue_head+0xa9/0x150
[ 254.091752][ T7631] gfs2_sys_fs_add+0x234/0x450
[ 254.091773][ T7631] ? is_dynamic_key+0x1ac/0x1c0
[ 254.091795][ T7631] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 254.091824][ T7631] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 254.091863][ T7631] gfs2_fill_super+0x1388/0x21b0
[ 254.091902][ T7631] ? __pfx_gfs2_fill_super+0x10/0x10
[ 254.091931][ T7631] ? sb_set_blocksize+0x155/0x240
[ 254.091952][ T7631] ? setup_bdev_super+0x4c1/0x5b0
[ 254.091977][ T7631] get_tree_bdev_flags+0x40e/0x4d0
[ 254.091999][ T7631] ? __pfx_gfs2_fill_super+0x10/0x10
[ 254.092024][ T7631] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 254.092045][ T7631] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 254.092075][ T7631] gfs2_get_tree+0x51/0x1e0
[ 254.092102][ T7631] vfs_get_tree+0x92/0x2a0
[ 254.092126][ T7631] do_new_mount+0x31a/0xcf0
[ 254.092143][ T7631] ? apparmor_capable+0x137/0x1a0
[ 254.092163][ T7631] ? __pfx_do_new_mount+0x10/0x10
[ 254.092182][ T7631] ? ns_capable+0x8a/0xf0
[ 254.092206][ T7631] ? user_path_at+0xd4/0x160
[ 254.092231][ T7631] ? user_path_at+0xd4/0x160
[ 254.092251][ T7631] __se_sys_mount+0x313/0x410
[ 254.092293][ T7631] ? __pfx___se_sys_mount+0x10/0x10
[ 254.092326][ T7631] ? __x64_sys_mount+0x20/0xc0
[ 254.092348][ T7631] do_syscall_64+0xec/0xf80
[ 254.092368][ T7631] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 254.092385][ T7631] ? trace_irq_disable+0x37/0x100
[ 254.092401][ T7631] ? clear_bhb_loop+0x40/0x90
[ 254.092421][ T7631] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 254.092438][ T7631] RIP: 0033:0x7f1f4f99038a
[ 254.092455][ T7631] 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
[ 254.092470][ T7631] RSP: 002b:00007f1f5074ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.092489][ T7631] RAX: ffffffffffffffda RBX: 00007f1f5074cef0 RCX: 00007f1f4f99038a
[ 254.092501][ T7631] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f1f5074ceb0
[ 254.092513][ T7631] RBP: 000020000001f680 R08: 00007f1f5074cef0 R09: 0000000000000084
[ 254.092524][ T7631] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 254.092535][ T7631] R13: 00007f1f5074ceb0 R14: 000000000001f790 R15: 00002000000001c0
[ 254.092562][ T7631]
[ 254.092588][ T7631] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.179124][ T7632] CPU: 0 UID: 0 PID: 7632 Comm: syz.3.209 Not tainted syzkaller #0 PREEMPT(full)
[ 254.179148][ T7632] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 254.179160][ T7632] Call Trace:
[ 254.179167][ T7632]
[ 254.179176][ T7632] dump_stack_lvl+0xe8/0x150
[ 254.179203][ T7632] sysfs_create_dir_ns+0x259/0x280
[ 254.179231][ T7632] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 254.179258][ T7632] ? do_raw_spin_unlock+0xf6/0x210
[ 254.179279][ T7632] kobject_add_internal+0x6ab/0xcc0
[ 254.179309][ T7632] kobject_init_and_add+0x125/0x190
[ 254.179335][ T7632] ? __pfx_kobject_init_and_add+0x10/0x10
[ 254.179358][ T7632] ? __raw_spin_lock_init+0x45/0x100
[ 254.179376][ T7632] ? __init_swait_queue_head+0xa9/0x150
[ 254.179405][ T7632] gfs2_sys_fs_add+0x234/0x450
[ 254.179424][ T7632] ? is_dynamic_key+0x1ac/0x1c0
[ 254.179445][ T7632] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 254.179473][ T7632] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 254.179510][ T7632] gfs2_fill_super+0x1388/0x21b0
[ 254.179549][ T7632] ? __pfx_gfs2_fill_super+0x10/0x10
[ 254.179584][ T7632] ? sb_set_blocksize+0x155/0x240
[ 254.179608][ T7632] ? setup_bdev_super+0x4c1/0x5b0
[ 254.179633][ T7632] get_tree_bdev_flags+0x40e/0x4d0
[ 254.179656][ T7632] ? __pfx_gfs2_fill_super+0x10/0x10
[ 254.179680][ T7632] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 254.179700][ T7632] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 254.179731][ T7632] gfs2_get_tree+0x51/0x1e0
[ 254.179758][ T7632] vfs_get_tree+0x92/0x2a0
[ 254.179782][ T7632] do_new_mount+0x31a/0xcf0
[ 254.179798][ T7632] ? apparmor_capable+0x137/0x1a0
[ 254.179819][ T7632] ? __pfx_do_new_mount+0x10/0x10
[ 254.179837][ T7632] ? ns_capable+0x8a/0xf0
[ 254.179860][ T7632] ? user_path_at+0xd4/0x160
[ 254.179883][ T7632] ? user_path_at+0xd4/0x160
[ 254.179905][ T7632] __se_sys_mount+0x313/0x410
[ 254.179928][ T7632] ? __pfx___se_sys_mount+0x10/0x10
[ 254.179953][ T7632] ? __x64_sys_mount+0x20/0xc0
[ 254.179973][ T7632] do_syscall_64+0xec/0xf80
[ 254.179992][ T7632] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 254.180008][ T7632] ? trace_irq_disable+0x37/0x100
[ 254.180023][ T7632] ? clear_bhb_loop+0x40/0x90
[ 254.180043][ T7632] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 254.180060][ T7632] RIP: 0033:0x7f1860b9038a
[ 254.180077][ T7632] 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
[ 254.180092][ T7632] RSP: 002b:00007f18601fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.180110][ T7632] RAX: ffffffffffffffda RBX: 00007f18601fdef0 RCX: 00007f1860b9038a
[ 254.180122][ T7632] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f18601fdeb0
[ 254.180134][ T7632] RBP: 000020000001f680 R08: 00007f18601fdef0 R09: 0000000000000084
[ 254.180146][ T7632] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 254.180157][ T7632] R13: 00007f18601fdeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 254.180184][ T7632]
[ 254.180209][ T7632] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.333313][ T7631] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.402661][ T7632] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.122775][ T7638] loop4: detected capacity change from 0 to 32768
[ 255.171101][ T7638] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.178647][ T7638] CPU: 1 UID: 0 PID: 7638 Comm: syz.4.210 Not tainted syzkaller #0 PREEMPT(full)
[ 255.178670][ T7638] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 255.178680][ T7638] Call Trace:
[ 255.178687][ T7638]
[ 255.178694][ T7638] dump_stack_lvl+0xe8/0x150
[ 255.178719][ T7638] sysfs_create_dir_ns+0x259/0x280
[ 255.178747][ T7638] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 255.178773][ T7638] ? do_raw_spin_unlock+0xf6/0x210
[ 255.178792][ T7638] kobject_add_internal+0x6ab/0xcc0
[ 255.178818][ T7638] kobject_init_and_add+0x125/0x190
[ 255.178845][ T7638] ? __pfx_kobject_init_and_add+0x10/0x10
[ 255.178867][ T7638] ? __raw_spin_lock_init+0x45/0x100
[ 255.178885][ T7638] ? __init_swait_queue_head+0xa9/0x150
[ 255.178910][ T7638] gfs2_sys_fs_add+0x234/0x450
[ 255.178930][ T7638] ? is_dynamic_key+0x1ac/0x1c0
[ 255.178950][ T7638] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 255.178980][ T7638] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 255.179017][ T7638] gfs2_fill_super+0x1388/0x21b0
[ 255.179054][ T7638] ? __pfx_gfs2_fill_super+0x10/0x10
[ 255.179080][ T7638] ? sb_set_blocksize+0x155/0x240
[ 255.179102][ T7638] ? setup_bdev_super+0x4c1/0x5b0
[ 255.179127][ T7638] get_tree_bdev_flags+0x40e/0x4d0
[ 255.179148][ T7638] ? __pfx_gfs2_fill_super+0x10/0x10
[ 255.179172][ T7638] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 255.179193][ T7638] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 255.179225][ T7638] gfs2_get_tree+0x51/0x1e0
[ 255.179334][ T7638] vfs_get_tree+0x92/0x2a0
[ 255.179360][ T7638] do_new_mount+0x31a/0xcf0
[ 255.179377][ T7638] ? apparmor_capable+0x137/0x1a0
[ 255.179398][ T7638] ? __pfx_do_new_mount+0x10/0x10
[ 255.179417][ T7638] ? ns_capable+0x8a/0xf0
[ 255.179442][ T7638] ? user_path_at+0xd4/0x160
[ 255.179467][ T7638] ? user_path_at+0xd4/0x160
[ 255.179488][ T7638] __se_sys_mount+0x313/0x410
[ 255.179532][ T7638] ? __pfx___se_sys_mount+0x10/0x10
[ 255.179556][ T7638] ? __x64_sys_mount+0x20/0xc0
[ 255.179574][ T7638] do_syscall_64+0xec/0xf80
[ 255.179593][ T7638] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 255.179607][ T7638] ? trace_irq_disable+0x37/0x100
[ 255.179620][ T7638] ? clear_bhb_loop+0x40/0x90
[ 255.179641][ T7638] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 255.179657][ T7638] RIP: 0033:0x7fd998d9038a
[ 255.179674][ T7638] 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
[ 255.179688][ T7638] RSP: 002b:00007fd999b60e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.179705][ T7638] RAX: ffffffffffffffda RBX: 00007fd999b60ef0 RCX: 00007fd998d9038a
[ 255.179716][ T7638] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd999b60eb0
[ 255.179728][ T7638] RBP: 000020000001f680 R08: 00007fd999b60ef0 R09: 0000000000000084
[ 255.179738][ T7638] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 255.179748][ T7638] R13: 00007fd999b60eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 255.179775][ T7638]
[ 255.179803][ T7638] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.240141][ T7641] loop5: detected capacity change from 0 to 32768
[ 255.514619][ T7638] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.623509][ T7641] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.645391][ T7641] CPU: 0 UID: 0 PID: 7641 Comm: syz.5.211 Not tainted syzkaller #0 PREEMPT(full)
[ 255.645415][ T7641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 255.645426][ T7641] Call Trace:
[ 255.645433][ T7641]
[ 255.645441][ T7641] dump_stack_lvl+0xe8/0x150
[ 255.645468][ T7641] sysfs_create_dir_ns+0x259/0x280
[ 255.645498][ T7641] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 255.645525][ T7641] ? do_raw_spin_unlock+0xf6/0x210
[ 255.645547][ T7641] kobject_add_internal+0x6ab/0xcc0
[ 255.645579][ T7641] kobject_init_and_add+0x125/0x190
[ 255.645607][ T7641] ? __pfx_kobject_init_and_add+0x10/0x10
[ 255.645630][ T7641] ? __raw_spin_lock_init+0x45/0x100
[ 255.645649][ T7641] ? __init_swait_queue_head+0xa9/0x150
[ 255.645679][ T7641] gfs2_sys_fs_add+0x234/0x450
[ 255.645701][ T7641] ? is_dynamic_key+0x1ac/0x1c0
[ 255.645721][ T7641] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 255.645750][ T7641] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 255.645789][ T7641] gfs2_fill_super+0x1388/0x21b0
[ 255.645830][ T7641] ? __pfx_gfs2_fill_super+0x10/0x10
[ 255.645860][ T7641] ? sb_set_blocksize+0x155/0x240
[ 255.645884][ T7641] ? setup_bdev_super+0x4c1/0x5b0
[ 255.645910][ T7641] get_tree_bdev_flags+0x40e/0x4d0
[ 255.645934][ T7641] ? __pfx_gfs2_fill_super+0x10/0x10
[ 255.645963][ T7641] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 255.645984][ T7641] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 255.646016][ T7641] gfs2_get_tree+0x51/0x1e0
[ 255.646045][ T7641] vfs_get_tree+0x92/0x2a0
[ 255.646070][ T7641] do_new_mount+0x31a/0xcf0
[ 255.646087][ T7641] ? apparmor_capable+0x137/0x1a0
[ 255.646109][ T7641] ? __pfx_do_new_mount+0x10/0x10
[ 255.646127][ T7641] ? ns_capable+0x8a/0xf0
[ 255.646151][ T7641] ? user_path_at+0xd4/0x160
[ 255.646176][ T7641] ? user_path_at+0xd4/0x160
[ 255.646207][ T7641] __se_sys_mount+0x313/0x410
[ 255.646232][ T7641] ? __pfx___se_sys_mount+0x10/0x10
[ 255.646258][ T7641] ? __x64_sys_mount+0x20/0xc0
[ 255.646280][ T7641] do_syscall_64+0xec/0xf80
[ 255.646301][ T7641] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 255.646318][ T7641] ? trace_irq_disable+0x37/0x100
[ 255.646334][ T7641] ? clear_bhb_loop+0x40/0x90
[ 255.646355][ T7641] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 255.646372][ T7641] RIP: 0033:0x7fa6a7d9038a
[ 255.646389][ T7641] 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
[ 255.646405][ T7641] RSP: 002b:00007fa6a8cdbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.646424][ T7641] RAX: ffffffffffffffda RBX: 00007fa6a8cdbef0 RCX: 00007fa6a7d9038a
[ 255.646437][ T7641] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa6a8cdbeb0
[ 255.646450][ T7641] RBP: 000020000001f680 R08: 00007fa6a8cdbef0 R09: 0000000000000084
[ 255.646462][ T7641] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 255.646473][ T7641] R13: 00007fa6a8cdbeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 255.646503][ T7641]
[ 256.042349][ T7641] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.074028][ T1301] ieee802154 phy0 wpan0: encryption failed: -22
[ 256.080583][ T1301] ieee802154 phy1 wpan1: encryption failed: -22
[ 256.121604][ T7641] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/17 18:07:25 executed programs: 208
[ 256.658729][ T7648] loop1: detected capacity change from 0 to 32768
[ 256.726912][ T7648] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.735127][ T7648] CPU: 1 UID: 0 PID: 7648 Comm: syz.1.212 Not tainted syzkaller #0 PREEMPT(full)
[ 256.735153][ T7648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 256.735164][ T7648] Call Trace:
[ 256.735172][ T7648]
[ 256.735179][ T7648] dump_stack_lvl+0xe8/0x150
[ 256.735208][ T7648] sysfs_create_dir_ns+0x259/0x280
[ 256.735237][ T7648] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 256.735264][ T7648] ? do_raw_spin_unlock+0xf6/0x210
[ 256.735287][ T7648] kobject_add_internal+0x6ab/0xcc0
[ 256.735319][ T7648] kobject_init_and_add+0x125/0x190
[ 256.735346][ T7648] ? __pfx_kobject_init_and_add+0x10/0x10
[ 256.735377][ T7648] ? __raw_spin_lock_init+0x45/0x100
[ 256.735396][ T7648] ? __init_swait_queue_head+0xa9/0x150
[ 256.735426][ T7648] gfs2_sys_fs_add+0x234/0x450
[ 256.735447][ T7648] ? is_dynamic_key+0x1ac/0x1c0
[ 256.735469][ T7648] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 256.735498][ T7648] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 256.735537][ T7648] gfs2_fill_super+0x1388/0x21b0
[ 256.735577][ T7648] ? __pfx_gfs2_fill_super+0x10/0x10
[ 256.735608][ T7648] ? sb_set_blocksize+0x155/0x240
[ 256.735636][ T7648] ? setup_bdev_super+0x4c1/0x5b0
[ 256.735662][ T7648] get_tree_bdev_flags+0x40e/0x4d0
[ 256.735685][ T7648] ? __pfx_gfs2_fill_super+0x10/0x10
[ 256.735711][ T7648] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 256.735732][ T7648] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 256.735764][ T7648] gfs2_get_tree+0x51/0x1e0
[ 256.735792][ T7648] vfs_get_tree+0x92/0x2a0
[ 256.735817][ T7648] do_new_mount+0x31a/0xcf0
[ 256.735835][ T7648] ? apparmor_capable+0x137/0x1a0
[ 256.735857][ T7648] ? __pfx_do_new_mount+0x10/0x10
[ 256.735875][ T7648] ? ns_capable+0x8a/0xf0
[ 256.735899][ T7648] ? user_path_at+0xd4/0x160
[ 256.735925][ T7648] ? user_path_at+0xd4/0x160
[ 256.735948][ T7648] __se_sys_mount+0x313/0x410
[ 256.735973][ T7648] ? __pfx___se_sys_mount+0x10/0x10
[ 256.735997][ T7648] ? __x64_sys_mount+0x20/0xc0
[ 256.736019][ T7648] do_syscall_64+0xec/0xf80
[ 256.736039][ T7648] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 256.736056][ T7648] ? trace_irq_disable+0x37/0x100
[ 256.736071][ T7648] ? clear_bhb_loop+0x40/0x90
[ 256.736093][ T7648] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 256.736110][ T7648] RIP: 0033:0x7f1f4f99038a
[ 256.736127][ T7648] 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
[ 256.736143][ T7648] RSP: 002b:00007f1f5074ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.736162][ T7648] RAX: ffffffffffffffda RBX: 00007f1f5074cef0 RCX: 00007f1f4f99038a
[ 256.736175][ T7648] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f1f5074ceb0
[ 256.736187][ T7648] RBP: 000020000001f680 R08: 00007f1f5074cef0 R09: 0000000000000084
[ 256.736200][ T7648] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 256.736212][ T7648] R13: 00007f1f5074ceb0 R14: 000000000001f790 R15: 00002000000001c0
[ 256.736241][ T7648]
[ 256.736292][ T7648] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.988589][ T7652] loop2: detected capacity change from 0 to 32768
[ 257.070646][ T7648] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.133897][ T7652] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.141544][ T7652] CPU: 1 UID: 0 PID: 7652 Comm: syz.2.213 Not tainted syzkaller #0 PREEMPT(full)
[ 257.141569][ T7652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 257.141580][ T7652] Call Trace:
[ 257.141588][ T7652]
[ 257.141596][ T7652] dump_stack_lvl+0xe8/0x150
[ 257.141625][ T7652] sysfs_create_dir_ns+0x259/0x280
[ 257.141654][ T7652] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 257.141680][ T7652] ? do_raw_spin_unlock+0xf6/0x210
[ 257.141703][ T7652] kobject_add_internal+0x6ab/0xcc0
[ 257.141733][ T7652] kobject_init_and_add+0x125/0x190
[ 257.141761][ T7652] ? __pfx_kobject_init_and_add+0x10/0x10
[ 257.141784][ T7652] ? __raw_spin_lock_init+0x45/0x100
[ 257.141804][ T7652] ? __init_swait_queue_head+0xa9/0x150
[ 257.141835][ T7652] gfs2_sys_fs_add+0x234/0x450
[ 257.141856][ T7652] ? is_dynamic_key+0x1ac/0x1c0
[ 257.141878][ T7652] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 257.141906][ T7652] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 257.141944][ T7652] gfs2_fill_super+0x1388/0x21b0
[ 257.141987][ T7652] ? __pfx_gfs2_fill_super+0x10/0x10
[ 257.142017][ T7652] ? sb_set_blocksize+0x155/0x240
[ 257.142042][ T7652] ? setup_bdev_super+0x4c1/0x5b0
[ 257.142068][ T7652] get_tree_bdev_flags+0x40e/0x4d0
[ 257.142098][ T7652] ? __pfx_gfs2_fill_super+0x10/0x10
[ 257.142124][ T7652] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 257.142145][ T7652] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 257.142179][ T7652] gfs2_get_tree+0x51/0x1e0
[ 257.142207][ T7652] vfs_get_tree+0x92/0x2a0
[ 257.142234][ T7652] do_new_mount+0x31a/0xcf0
[ 257.142250][ T7652] ? apparmor_capable+0x137/0x1a0
[ 257.142273][ T7652] ? __pfx_do_new_mount+0x10/0x10
[ 257.142291][ T7652] ? ns_capable+0x8a/0xf0
[ 257.142315][ T7652] ? user_path_at+0xd4/0x160
[ 257.142340][ T7652] ? user_path_at+0xd4/0x160
[ 257.142363][ T7652] __se_sys_mount+0x313/0x410
[ 257.142388][ T7652] ? __pfx___se_sys_mount+0x10/0x10
[ 257.142414][ T7652] ? __x64_sys_mount+0x20/0xc0
[ 257.142436][ T7652] do_syscall_64+0xec/0xf80
[ 257.142455][ T7652] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 257.142472][ T7652] ? trace_irq_disable+0x37/0x100
[ 257.142487][ T7652] ? clear_bhb_loop+0x40/0x90
[ 257.142508][ T7652] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 257.142525][ T7652] RIP: 0033:0x7f3e03d9038a
[ 257.142542][ T7652] 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
[ 257.142558][ T7652] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.142579][ T7652] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 257.142592][ T7652] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 257.142605][ T7652] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 257.142617][ T7652] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 257.142629][ T7652] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 257.142658][ T7652]
[ 257.142683][ T7652] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.475580][ T7652] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.723953][ T7657] loop3: detected capacity change from 0 to 32768
[ 257.775203][ T7657] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.810046][ T7657] CPU: 1 UID: 0 PID: 7657 Comm: syz.3.214 Not tainted syzkaller #0 PREEMPT(full)
[ 257.810080][ T7657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 257.810092][ T7657] Call Trace:
[ 257.810100][ T7657]
[ 257.810108][ T7657] dump_stack_lvl+0xe8/0x150
[ 257.810136][ T7657] sysfs_create_dir_ns+0x259/0x280
[ 257.810165][ T7657] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 257.810192][ T7657] ? do_raw_spin_unlock+0xf6/0x210
[ 257.810214][ T7657] kobject_add_internal+0x6ab/0xcc0
[ 257.810245][ T7657] kobject_init_and_add+0x125/0x190
[ 257.810273][ T7657] ? __pfx_kobject_init_and_add+0x10/0x10
[ 257.810297][ T7657] ? __raw_spin_lock_init+0x45/0x100
[ 257.810316][ T7657] ? __init_swait_queue_head+0xa9/0x150
[ 257.810345][ T7657] gfs2_sys_fs_add+0x234/0x450
[ 257.810365][ T7657] ? is_dynamic_key+0x1ac/0x1c0
[ 257.810387][ T7657] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 257.810415][ T7657] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 257.810454][ T7657] gfs2_fill_super+0x1388/0x21b0
[ 257.810494][ T7657] ? __pfx_gfs2_fill_super+0x10/0x10
[ 257.810524][ T7657] ? sb_set_blocksize+0x155/0x240
[ 257.810548][ T7657] ? setup_bdev_super+0x4c1/0x5b0
[ 257.810574][ T7657] get_tree_bdev_flags+0x40e/0x4d0
[ 257.810598][ T7657] ? __pfx_gfs2_fill_super+0x10/0x10
[ 257.810623][ T7657] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 257.810644][ T7657] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 257.810676][ T7657] gfs2_get_tree+0x51/0x1e0
[ 257.810704][ T7657] vfs_get_tree+0x92/0x2a0
[ 257.810730][ T7657] do_new_mount+0x31a/0xcf0
[ 257.810746][ T7657] ? apparmor_capable+0x137/0x1a0
[ 257.810768][ T7657] ? __pfx_do_new_mount+0x10/0x10
[ 257.810787][ T7657] ? ns_capable+0x8a/0xf0
[ 257.810811][ T7657] ? user_path_at+0xd4/0x160
[ 257.810841][ T7657] ? user_path_at+0xd4/0x160
[ 257.810864][ T7657] __se_sys_mount+0x313/0x410
[ 257.810888][ T7657] ? __pfx___se_sys_mount+0x10/0x10
[ 257.810913][ T7657] ? __x64_sys_mount+0x20/0xc0
[ 257.810935][ T7657] do_syscall_64+0xec/0xf80
[ 257.810955][ T7657] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 257.810972][ T7657] ? trace_irq_disable+0x37/0x100
[ 257.810987][ T7657] ? clear_bhb_loop+0x40/0x90
[ 257.811009][ T7657] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 257.811026][ T7657] RIP: 0033:0x7f1860b9038a
[ 257.811043][ T7657] 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
[ 257.811064][ T7657] RSP: 002b:00007f18601fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.811083][ T7657] RAX: ffffffffffffffda RBX: 00007f18601fdef0 RCX: 00007f1860b9038a
[ 257.811096][ T7657] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f18601fdeb0
[ 257.811109][ T7657] RBP: 000020000001f680 R08: 00007f18601fdef0 R09: 0000000000000084
[ 257.811121][ T7657] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 257.811132][ T7657] R13: 00007f18601fdeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 257.811161][ T7657]
[ 257.811184][ T7657] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.143354][ T7657] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.332943][ T7660] loop4: detected capacity change from 0 to 32768
[ 258.413532][ T7660] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.423388][ T7660] CPU: 0 UID: 0 PID: 7660 Comm: syz.4.215 Not tainted syzkaller #0 PREEMPT(full)
[ 258.423411][ T7660] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 258.423422][ T7660] Call Trace:
[ 258.423430][ T7660]
[ 258.423439][ T7660] dump_stack_lvl+0xe8/0x150
[ 258.423467][ T7660] sysfs_create_dir_ns+0x259/0x280
[ 258.423494][ T7660] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 258.423520][ T7660] ? do_raw_spin_unlock+0xf6/0x210
[ 258.423541][ T7660] kobject_add_internal+0x6ab/0xcc0
[ 258.423572][ T7660] kobject_init_and_add+0x125/0x190
[ 258.423600][ T7660] ? __pfx_kobject_init_and_add+0x10/0x10
[ 258.423623][ T7660] ? __raw_spin_lock_init+0x45/0x100
[ 258.423643][ T7660] ? __init_swait_queue_head+0xa9/0x150
[ 258.423673][ T7660] gfs2_sys_fs_add+0x234/0x450
[ 258.423694][ T7660] ? is_dynamic_key+0x1ac/0x1c0
[ 258.423715][ T7660] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 258.423744][ T7660] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 258.423784][ T7660] gfs2_fill_super+0x1388/0x21b0
[ 258.423825][ T7660] ? __pfx_gfs2_fill_super+0x10/0x10
[ 258.423855][ T7660] ? sb_set_blocksize+0x155/0x240
[ 258.423883][ T7660] ? setup_bdev_super+0x4c1/0x5b0
[ 258.423909][ T7660] get_tree_bdev_flags+0x40e/0x4d0
[ 258.423932][ T7660] ? __pfx_gfs2_fill_super+0x10/0x10
[ 258.423964][ T7660] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 258.423986][ T7660] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 258.424018][ T7660] gfs2_get_tree+0x51/0x1e0
[ 258.424057][ T7660] vfs_get_tree+0x92/0x2a0
[ 258.424082][ T7660] do_new_mount+0x31a/0xcf0
[ 258.424099][ T7660] ? apparmor_capable+0x137/0x1a0
[ 258.424121][ T7660] ? __pfx_do_new_mount+0x10/0x10
[ 258.424139][ T7660] ? ns_capable+0x8a/0xf0
[ 258.424164][ T7660] ? user_path_at+0xd4/0x160
[ 258.424190][ T7660] ? user_path_at+0xd4/0x160
[ 258.424212][ T7660] __se_sys_mount+0x313/0x410
[ 258.424236][ T7660] ? __pfx___se_sys_mount+0x10/0x10
[ 258.424262][ T7660] ? __x64_sys_mount+0x20/0xc0
[ 258.424283][ T7660] do_syscall_64+0xec/0xf80
[ 258.424303][ T7660] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 258.424320][ T7660] ? trace_irq_disable+0x37/0x100
[ 258.424336][ T7660] ? clear_bhb_loop+0x40/0x90
[ 258.424358][ T7660] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 258.424376][ T7660] RIP: 0033:0x7fd998d9038a
[ 258.424393][ T7660] 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
[ 258.424409][ T7660] RSP: 002b:00007fd999b60e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.424428][ T7660] RAX: ffffffffffffffda RBX: 00007fd999b60ef0 RCX: 00007fd998d9038a
[ 258.424441][ T7660] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd999b60eb0
[ 258.424454][ T7660] RBP: 000020000001f680 R08: 00007fd999b60ef0 R09: 0000000000000084
[ 258.424466][ T7660] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 258.424478][ T7660] R13: 00007fd999b60eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 258.424506][ T7660]
[ 258.424602][ T7660] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.453173][ T7662] loop5: detected capacity change from 0 to 32768
[ 258.493369][ T7660] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.783524][ T7662] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.801551][ T7662] CPU: 1 UID: 0 PID: 7662 Comm: syz.5.216 Not tainted syzkaller #0 PREEMPT(full)
[ 258.801576][ T7662] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 258.801587][ T7662] Call Trace:
[ 258.801595][ T7662]
[ 258.801603][ T7662] dump_stack_lvl+0xe8/0x150
[ 258.801632][ T7662] sysfs_create_dir_ns+0x259/0x280
[ 258.801661][ T7662] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 258.801688][ T7662] ? do_raw_spin_unlock+0xf6/0x210
[ 258.801711][ T7662] kobject_add_internal+0x6ab/0xcc0
[ 258.801741][ T7662] kobject_init_and_add+0x125/0x190
[ 258.801769][ T7662] ? __pfx_kobject_init_and_add+0x10/0x10
[ 258.801793][ T7662] ? __raw_spin_lock_init+0x45/0x100
[ 258.801812][ T7662] ? __init_swait_queue_head+0xa9/0x150
[ 258.801842][ T7662] gfs2_sys_fs_add+0x234/0x450
[ 258.801862][ T7662] ? is_dynamic_key+0x1ac/0x1c0
[ 258.801884][ T7662] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 258.801913][ T7662] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 258.801951][ T7662] gfs2_fill_super+0x1388/0x21b0
[ 258.801991][ T7662] ? __pfx_gfs2_fill_super+0x10/0x10
[ 258.802021][ T7662] ? sb_set_blocksize+0x155/0x240
[ 258.802045][ T7662] ? setup_bdev_super+0x4c1/0x5b0
[ 258.802071][ T7662] get_tree_bdev_flags+0x40e/0x4d0
[ 258.802094][ T7662] ? __pfx_gfs2_fill_super+0x10/0x10
[ 258.802119][ T7662] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 258.802140][ T7662] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 258.802179][ T7662] gfs2_get_tree+0x51/0x1e0
[ 258.802208][ T7662] vfs_get_tree+0x92/0x2a0
[ 258.802233][ T7662] do_new_mount+0x31a/0xcf0
[ 258.802250][ T7662] ? apparmor_capable+0x137/0x1a0
[ 258.802271][ T7662] ? __pfx_do_new_mount+0x10/0x10
[ 258.802290][ T7662] ? ns_capable+0x8a/0xf0
[ 258.802314][ T7662] ? user_path_at+0xd4/0x160
[ 258.802339][ T7662] ? user_path_at+0xd4/0x160
[ 258.802362][ T7662] __se_sys_mount+0x313/0x410
[ 258.802387][ T7662] ? __pfx___se_sys_mount+0x10/0x10
[ 258.802413][ T7662] ? __x64_sys_mount+0x20/0xc0
[ 258.802435][ T7662] do_syscall_64+0xec/0xf80
[ 258.802454][ T7662] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 258.802471][ T7662] ? trace_irq_disable+0x37/0x100
[ 258.802487][ T7662] ? clear_bhb_loop+0x40/0x90
[ 258.802508][ T7662] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 258.802525][ T7662] RIP: 0033:0x7fa6a7d9038a
[ 258.802543][ T7662] 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
[ 258.802558][ T7662] RSP: 002b:00007fa6a8cdbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.802577][ T7662] RAX: ffffffffffffffda RBX: 00007fa6a8cdbef0 RCX: 00007fa6a7d9038a
[ 258.802590][ T7662] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa6a8cdbeb0
[ 258.802602][ T7662] RBP: 000020000001f680 R08: 00007fa6a8cdbef0 R09: 0000000000000084
[ 258.802614][ T7662] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 258.802625][ T7662] R13: 00007fa6a8cdbeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 258.802654][ T7662]
[ 258.802679][ T7662] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.104203][ T7668] loop1: detected capacity change from 0 to 32768
[ 259.125587][ T7662] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.264010][ T7668] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.289972][ T7668] CPU: 0 UID: 0 PID: 7668 Comm: syz.1.217 Not tainted syzkaller #0 PREEMPT(full)
[ 259.289997][ T7668] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 259.290008][ T7668] Call Trace:
[ 259.290016][ T7668]
[ 259.290032][ T7668] dump_stack_lvl+0xe8/0x150
[ 259.290060][ T7668] sysfs_create_dir_ns+0x259/0x280
[ 259.290089][ T7668] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 259.290116][ T7668] ? do_raw_spin_unlock+0xf6/0x210
[ 259.290137][ T7668] kobject_add_internal+0x6ab/0xcc0
[ 259.290169][ T7668] kobject_init_and_add+0x125/0x190
[ 259.290197][ T7668] ? __pfx_kobject_init_and_add+0x10/0x10
[ 259.290220][ T7668] ? __raw_spin_lock_init+0x45/0x100
[ 259.290240][ T7668] ? __init_swait_queue_head+0xa9/0x150
[ 259.290270][ T7668] gfs2_sys_fs_add+0x234/0x450
[ 259.290291][ T7668] ? is_dynamic_key+0x1ac/0x1c0
[ 259.290313][ T7668] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 259.290342][ T7668] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 259.290381][ T7668] gfs2_fill_super+0x1388/0x21b0
[ 259.290422][ T7668] ? __pfx_gfs2_fill_super+0x10/0x10
[ 259.290452][ T7668] ? sb_set_blocksize+0x155/0x240
[ 259.290476][ T7668] ? setup_bdev_super+0x4c1/0x5b0
[ 259.290502][ T7668] get_tree_bdev_flags+0x40e/0x4d0
[ 259.290534][ T7668] ? __pfx_gfs2_fill_super+0x10/0x10
[ 259.290559][ T7668] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 259.290580][ T7668] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 259.290613][ T7668] gfs2_get_tree+0x51/0x1e0
[ 259.290641][ T7668] vfs_get_tree+0x92/0x2a0
[ 259.290667][ T7668] do_new_mount+0x31a/0xcf0
[ 259.290684][ T7668] ? apparmor_capable+0x137/0x1a0
[ 259.290705][ T7668] ? __pfx_do_new_mount+0x10/0x10
[ 259.290723][ T7668] ? ns_capable+0x8a/0xf0
[ 259.290747][ T7668] ? user_path_at+0xd4/0x160
[ 259.290773][ T7668] ? user_path_at+0xd4/0x160
[ 259.290796][ T7668] __se_sys_mount+0x313/0x410
[ 259.290820][ T7668] ? __pfx___se_sys_mount+0x10/0x10
[ 259.290846][ T7668] ? __x64_sys_mount+0x20/0xc0
[ 259.290867][ T7668] do_syscall_64+0xec/0xf80
[ 259.290896][ T7668] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 259.290912][ T7668] ? trace_irq_disable+0x37/0x100
[ 259.290928][ T7668] ? clear_bhb_loop+0x40/0x90
[ 259.290950][ T7668] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 259.290967][ T7668] RIP: 0033:0x7f1f4f99038a
[ 259.290985][ T7668] 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
[ 259.291002][ T7668] RSP: 002b:00007f1f5074ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.291021][ T7668] RAX: ffffffffffffffda RBX: 00007f1f5074cef0 RCX: 00007f1f4f99038a
[ 259.291034][ T7668] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f1f5074ceb0
[ 259.291047][ T7668] RBP: 000020000001f680 R08: 00007f1f5074cef0 R09: 0000000000000084
[ 259.291059][ T7668] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 259.291070][ T7668] R13: 00007f1f5074ceb0 R14: 000000000001f790 R15: 00002000000001c0
[ 259.291099][ T7668]
[ 259.291124][ T7668] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.614262][ T7668] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.846170][ T7672] loop2: detected capacity change from 0 to 32768
[ 259.897221][ T7672] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.943412][ T7672] CPU: 0 UID: 0 PID: 7672 Comm: syz.2.218 Not tainted syzkaller #0 PREEMPT(full)
[ 259.943436][ T7672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 259.943445][ T7672] Call Trace:
[ 259.943453][ T7672]
[ 259.943460][ T7672] dump_stack_lvl+0xe8/0x150
[ 259.943487][ T7672] sysfs_create_dir_ns+0x259/0x280
[ 259.943514][ T7672] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 259.943539][ T7672] ? do_raw_spin_unlock+0xf6/0x210
[ 259.943560][ T7672] kobject_add_internal+0x6ab/0xcc0
[ 259.943596][ T7672] kobject_init_and_add+0x125/0x190
[ 259.943620][ T7672] ? __pfx_kobject_init_and_add+0x10/0x10
[ 259.943641][ T7672] ? __raw_spin_lock_init+0x45/0x100
[ 259.943659][ T7672] ? __init_swait_queue_head+0xa9/0x150
[ 259.943689][ T7672] gfs2_sys_fs_add+0x234/0x450
[ 259.943707][ T7672] ? is_dynamic_key+0x1ac/0x1c0
[ 259.943726][ T7672] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 259.943757][ T7672] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 259.943799][ T7672] gfs2_fill_super+0x1388/0x21b0
[ 259.943837][ T7672] ? __pfx_gfs2_fill_super+0x10/0x10
[ 259.943877][ T7672] ? sb_set_blocksize+0x155/0x240
[ 259.943901][ T7672] ? setup_bdev_super+0x4c1/0x5b0
[ 259.943927][ T7672] get_tree_bdev_flags+0x40e/0x4d0
[ 259.943954][ T7672] ? __pfx_gfs2_fill_super+0x10/0x10
[ 259.943977][ T7672] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 259.943996][ T7672] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 259.944024][ T7672] gfs2_get_tree+0x51/0x1e0
[ 259.944051][ T7672] vfs_get_tree+0x92/0x2a0
[ 259.944075][ T7672] do_new_mount+0x31a/0xcf0
[ 259.944092][ T7672] ? apparmor_capable+0x137/0x1a0
[ 259.944113][ T7672] ? __pfx_do_new_mount+0x10/0x10
[ 259.944130][ T7672] ? ns_capable+0x8a/0xf0
[ 259.944153][ T7672] ? user_path_at+0xd4/0x160
[ 259.944175][ T7672] ? user_path_at+0xd4/0x160
[ 259.944196][ T7672] __se_sys_mount+0x313/0x410
[ 259.944220][ T7672] ? __pfx___se_sys_mount+0x10/0x10
[ 259.944245][ T7672] ? __x64_sys_mount+0x20/0xc0
[ 259.944265][ T7672] do_syscall_64+0xec/0xf80
[ 259.944284][ T7672] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 259.944301][ T7672] ? trace_irq_disable+0x37/0x100
[ 259.944314][ T7672] ? clear_bhb_loop+0x40/0x90
[ 259.944336][ T7672] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 259.944353][ T7672] RIP: 0033:0x7f3e03d9038a
[ 259.944369][ T7672] 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
[ 259.944384][ T7672] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.944402][ T7672] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 259.944414][ T7672] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 259.944426][ T7672] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 259.944436][ T7672] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 259.944447][ T7672] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 259.944474][ T7672]
[ 259.944501][ T7672] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 260.263494][ T7672] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 260.909696][ T7680] loop3: detected capacity change from 0 to 32768
[ 260.967694][ T7680] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 260.975465][ T7680] CPU: 1 UID: 0 PID: 7680 Comm: syz.3.219 Not tainted syzkaller #0 PREEMPT(full)
[ 260.975489][ T7680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 260.975499][ T7680] Call Trace:
[ 260.975507][ T7680]
[ 260.975515][ T7680] dump_stack_lvl+0xe8/0x150
[ 260.975542][ T7680] sysfs_create_dir_ns+0x259/0x280
[ 260.975569][ T7680] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 260.975593][ T7680] ? do_raw_spin_unlock+0xf6/0x210
[ 260.975614][ T7680] kobject_add_internal+0x6ab/0xcc0
[ 260.975645][ T7680] kobject_init_and_add+0x125/0x190
[ 260.975674][ T7680] ? __pfx_kobject_init_and_add+0x10/0x10
[ 260.975697][ T7680] ? __raw_spin_lock_init+0x45/0x100
[ 260.975715][ T7680] ? __init_swait_queue_head+0xa9/0x150
[ 260.975743][ T7680] gfs2_sys_fs_add+0x234/0x450
[ 260.975761][ T7680] ? is_dynamic_key+0x1ac/0x1c0
[ 260.975781][ T7680] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 260.975809][ T7680] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 260.975841][ T7680] gfs2_fill_super+0x1388/0x21b0
[ 260.975879][ T7680] ? __pfx_gfs2_fill_super+0x10/0x10
[ 260.975906][ T7680] ? sb_set_blocksize+0x155/0x240
[ 260.975929][ T7680] ? setup_bdev_super+0x4c1/0x5b0
[ 260.975954][ T7680] get_tree_bdev_flags+0x40e/0x4d0
[ 260.975977][ T7680] ? __pfx_gfs2_fill_super+0x10/0x10
[ 260.976003][ T7680] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 260.976032][ T7680] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 260.976064][ T7680] gfs2_get_tree+0x51/0x1e0
[ 260.976092][ T7680] vfs_get_tree+0x92/0x2a0
[ 260.976118][ T7680] do_new_mount+0x31a/0xcf0
[ 260.976135][ T7680] ? apparmor_capable+0x137/0x1a0
[ 260.976158][ T7680] ? __pfx_do_new_mount+0x10/0x10
[ 260.976176][ T7680] ? ns_capable+0x8a/0xf0
[ 260.976200][ T7680] ? user_path_at+0xd4/0x160
[ 260.976226][ T7680] ? user_path_at+0xd4/0x160
[ 260.976249][ T7680] __se_sys_mount+0x313/0x410
[ 260.976274][ T7680] ? __pfx___se_sys_mount+0x10/0x10
[ 260.976299][ T7680] ? __x64_sys_mount+0x20/0xc0
[ 260.976321][ T7680] do_syscall_64+0xec/0xf80
[ 260.976341][ T7680] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 260.976359][ T7680] ? trace_irq_disable+0x37/0x100
[ 260.976374][ T7680] ? clear_bhb_loop+0x40/0x90
[ 260.976396][ T7680] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 260.976413][ T7680] RIP: 0033:0x7f1860b9038a
[ 260.976430][ T7680] 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
[ 260.976445][ T7680] RSP: 002b:00007f18601fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 260.976464][ T7680] RAX: ffffffffffffffda RBX: 00007f18601fdef0 RCX: 00007f1860b9038a
[ 260.976476][ T7680] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f18601fdeb0
[ 260.976489][ T7680] RBP: 000020000001f680 R08: 00007f18601fdef0 R09: 0000000000000084
[ 260.976501][ T7680] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 260.976513][ T7680] R13: 00007f18601fdeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 260.976541][ T7680]
[ 260.976692][ T7680] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 261.270066][ T7690] loop1: detected capacity change from 0 to 32768
[ 261.303352][ T7680] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 261.334143][ T7684] loop4: detected capacity change from 0 to 32768
[ 261.414031][ T7684] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.434244][ T7690] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.462777][ T7684] CPU: 0 UID: 0 PID: 7684 Comm: syz.4.220 Not tainted syzkaller #0 PREEMPT(full)
[ 261.462803][ T7684] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 261.462815][ T7684] Call Trace:
[ 261.462823][ T7684]
[ 261.462831][ T7684] dump_stack_lvl+0xe8/0x150
[ 261.462860][ T7684] sysfs_create_dir_ns+0x259/0x280
[ 261.462889][ T7684] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 261.462916][ T7684] ? do_raw_spin_unlock+0xf6/0x210
[ 261.462938][ T7684] kobject_add_internal+0x6ab/0xcc0
[ 261.462970][ T7684] kobject_init_and_add+0x125/0x190
[ 261.462997][ T7684] ? __pfx_kobject_init_and_add+0x10/0x10
[ 261.463021][ T7684] ? __raw_spin_lock_init+0x45/0x100
[ 261.463041][ T7684] ? __init_swait_queue_head+0xa9/0x150
[ 261.463071][ T7684] gfs2_sys_fs_add+0x234/0x450
[ 261.463091][ T7684] ? is_dynamic_key+0x1ac/0x1c0
[ 261.463113][ T7684] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 261.463143][ T7684] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 261.463181][ T7684] gfs2_fill_super+0x1388/0x21b0
[ 261.463222][ T7684] ? __pfx_gfs2_fill_super+0x10/0x10
[ 261.463255][ T7684] ? sb_set_blocksize+0x155/0x240
[ 261.463275][ T7684] ? setup_bdev_super+0x4c1/0x5b0
[ 261.463299][ T7684] get_tree_bdev_flags+0x40e/0x4d0
[ 261.463323][ T7684] ? __pfx_gfs2_fill_super+0x10/0x10
[ 261.463348][ T7684] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 261.463369][ T7684] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 261.463400][ T7684] gfs2_get_tree+0x51/0x1e0
[ 261.463430][ T7684] vfs_get_tree+0x92/0x2a0
[ 261.463455][ T7684] do_new_mount+0x31a/0xcf0
[ 261.463473][ T7684] ? apparmor_capable+0x137/0x1a0
[ 261.463495][ T7684] ? __pfx_do_new_mount+0x10/0x10
[ 261.463514][ T7684] ? ns_capable+0x8a/0xf0
[ 261.463539][ T7684] ? user_path_at+0xd4/0x160
[ 261.463564][ T7684] ? user_path_at+0xd4/0x160
[ 261.463587][ T7684] __se_sys_mount+0x313/0x410
[ 261.463613][ T7684] ? __pfx___se_sys_mount+0x10/0x10
[ 261.463638][ T7684] ? __x64_sys_mount+0x20/0xc0
[ 261.463659][ T7684] do_syscall_64+0xec/0xf80
[ 261.463679][ T7684] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 261.463696][ T7684] ? trace_irq_disable+0x37/0x100
[ 261.463712][ T7684] ? clear_bhb_loop+0x40/0x90
[ 261.463800][ T7684] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 261.463818][ T7684] RIP: 0033:0x7fd998d9038a
[ 261.463835][ T7684] 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
[ 261.463851][ T7684] RSP: 002b:00007fd999b60e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 261.463869][ T7684] RAX: ffffffffffffffda RBX: 00007fd999b60ef0 RCX: 00007fd998d9038a
[ 261.463883][ T7684] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd999b60eb0
[ 261.463895][ T7684] RBP: 000020000001f680 R08: 00007fd999b60ef0 R09: 0000000000000084
[ 261.463907][ T7684] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 261.463919][ T7684] R13: 00007fd999b60eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 261.463948][ T7684]
[ 261.673633][ T7690] CPU: 1 UID: 0 PID: 7690 Comm: syz.1.222 Not tainted syzkaller #0 PREEMPT(full)
[ 261.673657][ T7690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 261.673669][ T7690] Call Trace:
[ 261.673677][ T7690]
[ 261.673685][ T7690] dump_stack_lvl+0xe8/0x150
[ 261.673712][ T7690] sysfs_create_dir_ns+0x259/0x280
[ 261.673740][ T7690] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 261.673766][ T7690] ? do_raw_spin_unlock+0xf6/0x210
[ 261.673788][ T7690] kobject_add_internal+0x6ab/0xcc0
[ 261.673824][ T7690] kobject_init_and_add+0x125/0x190
2026/01/17 18:07:31 executed programs: 217
[ 261.673849][ T7690] ? __pfx_kobject_init_and_add+0x10/0x10
[ 261.673872][ T7690] ? __raw_spin_lock_init+0x45/0x100
[ 261.673890][ T7690] ? __init_swait_queue_head+0xa9/0x150
[ 261.673919][ T7690] gfs2_sys_fs_add+0x234/0x450
[ 261.673939][ T7690] ? is_dynamic_key+0x1ac/0x1c0
[ 261.673966][ T7690] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 261.673994][ T7690] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 261.674031][ T7690] gfs2_fill_super+0x1388/0x21b0
[ 261.674070][ T7690] ? __pfx_gfs2_fill_super+0x10/0x10
[ 261.674098][ T7690] ? sb_set_blocksize+0x155/0x240
[ 261.674122][ T7690] ? setup_bdev_super+0x4c1/0x5b0
[ 261.674146][ T7690] get_tree_bdev_flags+0x40e/0x4d0
[ 261.674167][ T7690] ? __pfx_gfs2_fill_super+0x10/0x10
[ 261.674192][ T7690] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 261.674212][ T7690] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 261.674242][ T7690] gfs2_get_tree+0x51/0x1e0
[ 261.674270][ T7690] vfs_get_tree+0x92/0x2a0
[ 261.674294][ T7690] do_new_mount+0x31a/0xcf0
[ 261.674310][ T7690] ? apparmor_capable+0x137/0x1a0
[ 261.674331][ T7690] ? __pfx_do_new_mount+0x10/0x10
[ 261.674348][ T7690] ? ns_capable+0x8a/0xf0
[ 261.674371][ T7690] ? user_path_at+0xd4/0x160
[ 261.674395][ T7690] ? user_path_at+0xd4/0x160
[ 261.674416][ T7690] __se_sys_mount+0x313/0x410
[ 261.674440][ T7690] ? __pfx___se_sys_mount+0x10/0x10
[ 261.674464][ T7690] ? __x64_sys_mount+0x20/0xc0
[ 261.674484][ T7690] do_syscall_64+0xec/0xf80
[ 261.674504][ T7690] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 261.674520][ T7690] ? trace_irq_disable+0x37/0x100
[ 261.674535][ T7690] ? clear_bhb_loop+0x40/0x90
[ 261.674555][ T7690] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 261.674572][ T7690] RIP: 0033:0x7f1f4f99038a
[ 261.674588][ T7690] 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
[ 261.674604][ T7690] RSP: 002b:00007f1f5074ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 261.674622][ T7690] RAX: ffffffffffffffda RBX: 00007f1f5074cef0 RCX: 00007f1f4f99038a
[ 261.674651][ T7690] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f1f5074ceb0
[ 261.674662][ T7690] RBP: 000020000001f680 R08: 00007f1f5074cef0 R09: 0000000000000084
[ 261.674674][ T7690] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 261.674685][ T7690] R13: 00007f1f5074ceb0 R14: 000000000001f790 R15: 00002000000001c0
[ 261.674712][ T7690]
[ 261.674810][ T7690] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 261.735462][ T7686] loop5: detected capacity change from 0 to 32768
[ 261.780519][ T7684] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 261.794977][ T7690] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 262.103713][ T7684] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 262.181981][ T7686] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 262.206342][ T7692] loop2: detected capacity change from 0 to 32768
[ 262.234971][ T7686] CPU: 0 UID: 0 PID: 7686 Comm: syz.5.221 Not tainted syzkaller #0 PREEMPT(full)
[ 262.234996][ T7686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 262.235008][ T7686] Call Trace:
[ 262.235016][ T7686]
[ 262.235024][ T7686] dump_stack_lvl+0xe8/0x150
[ 262.235053][ T7686] sysfs_create_dir_ns+0x259/0x280
[ 262.235082][ T7686] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 262.235109][ T7686] ? do_raw_spin_unlock+0xf6/0x210
[ 262.235130][ T7686] kobject_add_internal+0x6ab/0xcc0
[ 262.235161][ T7686] kobject_init_and_add+0x125/0x190
[ 262.235189][ T7686] ? __pfx_kobject_init_and_add+0x10/0x10
[ 262.235212][ T7686] ? __raw_spin_lock_init+0x45/0x100
[ 262.235232][ T7686] ? __init_swait_queue_head+0xa9/0x150
[ 262.235262][ T7686] gfs2_sys_fs_add+0x234/0x450
[ 262.235284][ T7686] ? is_dynamic_key+0x1ac/0x1c0
[ 262.235306][ T7686] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 262.235334][ T7686] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 262.235374][ T7686] gfs2_fill_super+0x1388/0x21b0
[ 262.235416][ T7686] ? __pfx_gfs2_fill_super+0x10/0x10
[ 262.235446][ T7686] ? sb_set_blocksize+0x155/0x240
[ 262.235470][ T7686] ? setup_bdev_super+0x4c1/0x5b0
[ 262.235496][ T7686] get_tree_bdev_flags+0x40e/0x4d0
[ 262.235519][ T7686] ? __pfx_gfs2_fill_super+0x10/0x10
[ 262.235544][ T7686] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 262.235564][ T7686] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 262.235597][ T7686] gfs2_get_tree+0x51/0x1e0
[ 262.235626][ T7686] vfs_get_tree+0x92/0x2a0
[ 262.235652][ T7686] do_new_mount+0x31a/0xcf0
[ 262.235669][ T7686] ? apparmor_capable+0x137/0x1a0
[ 262.235690][ T7686] ? __pfx_do_new_mount+0x10/0x10
[ 262.235708][ T7686] ? ns_capable+0x8a/0xf0
[ 262.235732][ T7686] ? user_path_at+0xd4/0x160
[ 262.235758][ T7686] ? user_path_at+0xd4/0x160
[ 262.235781][ T7686] __se_sys_mount+0x313/0x410
[ 262.235806][ T7686] ? __pfx___se_sys_mount+0x10/0x10
[ 262.235832][ T7686] ? __x64_sys_mount+0x20/0xc0
[ 262.235853][ T7686] do_syscall_64+0xec/0xf80
[ 262.235872][ T7686] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 262.235888][ T7686] ? trace_irq_disable+0x37/0x100
[ 262.235904][ T7686] ? clear_bhb_loop+0x40/0x90
[ 262.235925][ T7686] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 262.235943][ T7686] RIP: 0033:0x7fa6a7d9038a
[ 262.235967][ T7686] 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
[ 262.235983][ T7686] RSP: 002b:00007fa6a8cdbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 262.236003][ T7686] RAX: ffffffffffffffda RBX: 00007fa6a8cdbef0 RCX: 00007fa6a7d9038a
[ 262.236016][ T7686] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa6a8cdbeb0
[ 262.236029][ T7686] RBP: 000020000001f680 R08: 00007fa6a8cdbef0 R09: 0000000000000084
[ 262.236040][ T7686] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 262.236052][ T7686] R13: 00007fa6a8cdbeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 262.236081][ T7686]
[ 262.236105][ T7686] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 262.553671][ T7686] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 262.634254][ T7692] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 262.641712][ T7692] CPU: 0 UID: 0 PID: 7692 Comm: syz.2.223 Not tainted syzkaller #0 PREEMPT(full)
[ 262.641771][ T7692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 262.641782][ T7692] Call Trace:
[ 262.641790][ T7692]
[ 262.641798][ T7692] dump_stack_lvl+0xe8/0x150
[ 262.641827][ T7692] sysfs_create_dir_ns+0x259/0x280
[ 262.641856][ T7692] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 262.641883][ T7692] ? do_raw_spin_unlock+0xf6/0x210
[ 262.641905][ T7692] kobject_add_internal+0x6ab/0xcc0
[ 262.641936][ T7692] kobject_init_and_add+0x125/0x190
[ 262.641963][ T7692] ? __pfx_kobject_init_and_add+0x10/0x10
[ 262.641986][ T7692] ? __raw_spin_lock_init+0x45/0x100
[ 262.642005][ T7692] ? __init_swait_queue_head+0xa9/0x150
[ 262.642036][ T7692] gfs2_sys_fs_add+0x234/0x450
[ 262.642054][ T7692] ? is_dynamic_key+0x1ac/0x1c0
[ 262.642076][ T7692] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 262.642102][ T7692] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 262.642142][ T7692] gfs2_fill_super+0x1388/0x21b0
[ 262.642182][ T7692] ? __pfx_gfs2_fill_super+0x10/0x10
[ 262.642213][ T7692] ? sb_set_blocksize+0x155/0x240
[ 262.642238][ T7692] ? setup_bdev_super+0x4c1/0x5b0
[ 262.642264][ T7692] get_tree_bdev_flags+0x40e/0x4d0
[ 262.642287][ T7692] ? __pfx_gfs2_fill_super+0x10/0x10
[ 262.642312][ T7692] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 262.642333][ T7692] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 262.642366][ T7692] gfs2_get_tree+0x51/0x1e0
[ 262.642394][ T7692] vfs_get_tree+0x92/0x2a0
[ 262.642420][ T7692] do_new_mount+0x31a/0xcf0
[ 262.642437][ T7692] ? apparmor_capable+0x137/0x1a0
[ 262.642459][ T7692] ? __pfx_do_new_mount+0x10/0x10
[ 262.642477][ T7692] ? ns_capable+0x8a/0xf0
[ 262.642502][ T7692] ? user_path_at+0xd4/0x160
[ 262.642528][ T7692] ? user_path_at+0xd4/0x160
[ 262.642551][ T7692] __se_sys_mount+0x313/0x410
[ 262.642576][ T7692] ? __pfx___se_sys_mount+0x10/0x10
[ 262.642602][ T7692] ? __x64_sys_mount+0x20/0xc0
[ 262.642623][ T7692] do_syscall_64+0xec/0xf80
[ 262.642643][ T7692] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 262.642660][ T7692] ? trace_irq_disable+0x37/0x100
[ 262.642675][ T7692] ? clear_bhb_loop+0x40/0x90
[ 262.642697][ T7692] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 262.642714][ T7692] RIP: 0033:0x7f3e03d9038a
[ 262.642738][ T7692] 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
[ 262.642754][ T7692] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 262.642774][ T7692] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 262.642787][ T7692] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 262.642800][ T7692] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 262.642812][ T7692] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 262.642823][ T7692] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 262.642852][ T7692]
[ 262.642876][ T7692] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 263.007257][ T7692] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 263.681540][ T7701] loop3: detected capacity change from 0 to 32768
[ 263.722923][ T7701] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 263.751753][ T7701] CPU: 1 UID: 0 PID: 7701 Comm: syz.3.224 Not tainted syzkaller #0 PREEMPT(full)
[ 263.751779][ T7701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 263.751811][ T7701] Call Trace:
[ 263.751820][ T7701]
[ 263.751828][ T7701] dump_stack_lvl+0xe8/0x150
[ 263.751858][ T7701] sysfs_create_dir_ns+0x259/0x280
[ 263.751887][ T7701] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 263.751914][ T7701] ? do_raw_spin_unlock+0xf6/0x210
[ 263.751937][ T7701] kobject_add_internal+0x6ab/0xcc0
[ 263.751969][ T7701] kobject_init_and_add+0x125/0x190
[ 263.751997][ T7701] ? __pfx_kobject_init_and_add+0x10/0x10
[ 263.752026][ T7701] ? __raw_spin_lock_init+0x45/0x100
[ 263.752046][ T7701] ? __init_swait_queue_head+0xa9/0x150
[ 263.752076][ T7701] gfs2_sys_fs_add+0x234/0x450
[ 263.752097][ T7701] ? is_dynamic_key+0x1ac/0x1c0
[ 263.752118][ T7701] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 263.752148][ T7701] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 263.752188][ T7701] gfs2_fill_super+0x1388/0x21b0
[ 263.752230][ T7701] ? __pfx_gfs2_fill_super+0x10/0x10
[ 263.752261][ T7701] ? sb_set_blocksize+0x155/0x240
[ 263.752287][ T7701] ? setup_bdev_super+0x4c1/0x5b0
[ 263.752312][ T7701] get_tree_bdev_flags+0x40e/0x4d0
[ 263.752336][ T7701] ? __pfx_gfs2_fill_super+0x10/0x10
[ 263.752361][ T7701] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 263.752383][ T7701] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 263.752416][ T7701] gfs2_get_tree+0x51/0x1e0
[ 263.752445][ T7701] vfs_get_tree+0x92/0x2a0
[ 263.752471][ T7701] do_new_mount+0x31a/0xcf0
[ 263.752487][ T7701] ? apparmor_capable+0x137/0x1a0
[ 263.752510][ T7701] ? __pfx_do_new_mount+0x10/0x10
[ 263.752528][ T7701] ? ns_capable+0x8a/0xf0
[ 263.752633][ T7701] ? user_path_at+0xd4/0x160
[ 263.752668][ T7701] ? user_path_at+0xd4/0x160
[ 263.752692][ T7701] __se_sys_mount+0x313/0x410
[ 263.752721][ T7701] ? __pfx___se_sys_mount+0x10/0x10
[ 263.752745][ T7701] ? __x64_sys_mount+0x20/0xc0
[ 263.752765][ T7701] do_syscall_64+0xec/0xf80
[ 263.752786][ T7701] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 263.752804][ T7701] ? trace_irq_disable+0x37/0x100
[ 263.752821][ T7701] ? clear_bhb_loop+0x40/0x90
[ 263.752849][ T7701] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 263.752867][ T7701] RIP: 0033:0x7f1860b9038a
[ 263.752886][ T7701] 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
[ 263.752902][ T7701] RSP: 002b:00007f18601fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 263.752923][ T7701] RAX: ffffffffffffffda RBX: 00007f18601fdef0 RCX: 00007f1860b9038a
[ 263.752936][ T7701] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f18601fdeb0
[ 263.752949][ T7701] RBP: 000020000001f680 R08: 00007f18601fdef0 R09: 0000000000000084
[ 263.752961][ T7701] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 263.752973][ T7701] R13: 00007f18601fdeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 263.753002][ T7701]
[ 263.794134][ T7701] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 264.080053][ T7701] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 264.294600][ T7706] loop4: detected capacity change from 0 to 32768
[ 264.342412][ T7706] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 264.352111][ T7706] CPU: 0 UID: 0 PID: 7706 Comm: syz.4.225 Not tainted syzkaller #0 PREEMPT(full)
[ 264.352135][ T7706] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 264.352147][ T7706] Call Trace:
[ 264.352155][ T7706]
[ 264.352163][ T7706] dump_stack_lvl+0xe8/0x150
[ 264.352190][ T7706] sysfs_create_dir_ns+0x259/0x280
[ 264.352220][ T7706] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 264.352247][ T7706] ? do_raw_spin_unlock+0xf6/0x210
[ 264.352270][ T7706] kobject_add_internal+0x6ab/0xcc0
[ 264.352301][ T7706] kobject_init_and_add+0x125/0x190
[ 264.352329][ T7706] ? __pfx_kobject_init_and_add+0x10/0x10
[ 264.352357][ T7706] ? __raw_spin_lock_init+0x45/0x100
[ 264.352376][ T7706] ? __init_swait_queue_head+0xa9/0x150
[ 264.352407][ T7706] gfs2_sys_fs_add+0x234/0x450
[ 264.352428][ T7706] ? is_dynamic_key+0x1ac/0x1c0
[ 264.352450][ T7706] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 264.352478][ T7706] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 264.352517][ T7706] gfs2_fill_super+0x1388/0x21b0
[ 264.352565][ T7706] ? __pfx_gfs2_fill_super+0x10/0x10
[ 264.352595][ T7706] ? sb_set_blocksize+0x155/0x240
[ 264.352619][ T7706] ? setup_bdev_super+0x4c1/0x5b0
[ 264.352645][ T7706] get_tree_bdev_flags+0x40e/0x4d0
[ 264.352669][ T7706] ? __pfx_gfs2_fill_super+0x10/0x10
[ 264.352691][ T7706] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 264.352712][ T7706] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 264.352744][ T7706] gfs2_get_tree+0x51/0x1e0
[ 264.352773][ T7706] vfs_get_tree+0x92/0x2a0
[ 264.352797][ T7706] do_new_mount+0x31a/0xcf0
[ 264.352815][ T7706] ? apparmor_capable+0x137/0x1a0
[ 264.352836][ T7706] ? __pfx_do_new_mount+0x10/0x10
[ 264.352854][ T7706] ? ns_capable+0x8a/0xf0
[ 264.352878][ T7706] ? user_path_at+0xd4/0x160
[ 264.352902][ T7706] ? user_path_at+0xd4/0x160
[ 264.352925][ T7706] __se_sys_mount+0x313/0x410
[ 264.352951][ T7706] ? __pfx___se_sys_mount+0x10/0x10
[ 264.352976][ T7706] ? __x64_sys_mount+0x20/0xc0
[ 264.352997][ T7706] do_syscall_64+0xec/0xf80
[ 264.353017][ T7706] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 264.353034][ T7706] ? trace_irq_disable+0x37/0x100
[ 264.353050][ T7706] ? clear_bhb_loop+0x40/0x90
[ 264.353072][ T7706] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 264.353089][ T7706] RIP: 0033:0x7fd998d9038a
[ 264.353106][ T7706] 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
[ 264.353121][ T7706] RSP: 002b:00007fd999b60e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 264.353141][ T7706] RAX: ffffffffffffffda RBX: 00007fd999b60ef0 RCX: 00007fd998d9038a
[ 264.353154][ T7706] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd999b60eb0
[ 264.353167][ T7706] RBP: 000020000001f680 R08: 00007fd999b60ef0 R09: 0000000000000084
[ 264.353178][ T7706] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 264.353190][ T7706] R13: 00007fd999b60eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 264.353218][ T7706]
[ 264.673353][ T7706] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 264.683950][ T7708] loop1: detected capacity change from 0 to 32768
[ 264.699106][ T7706] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 264.814467][ T7712] loop2: detected capacity change from 0 to 32768
[ 264.828008][ T7708] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 264.835964][ T7708] CPU: 1 UID: 0 PID: 7708 Comm: syz.1.227 Not tainted syzkaller #0 PREEMPT(full)
[ 264.835987][ T7708] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 264.835999][ T7708] Call Trace:
[ 264.836007][ T7708]
[ 264.836015][ T7708] dump_stack_lvl+0xe8/0x150
[ 264.836042][ T7708] sysfs_create_dir_ns+0x259/0x280
[ 264.836071][ T7708] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 264.836098][ T7708] ? do_raw_spin_unlock+0xf6/0x210
[ 264.836121][ T7708] kobject_add_internal+0x6ab/0xcc0
[ 264.836152][ T7708] kobject_init_and_add+0x125/0x190
[ 264.836180][ T7708] ? __pfx_kobject_init_and_add+0x10/0x10
[ 264.836203][ T7708] ? __raw_spin_lock_init+0x45/0x100
[ 264.836223][ T7708] ? __init_swait_queue_head+0xa9/0x150
[ 264.836252][ T7708] gfs2_sys_fs_add+0x234/0x450
[ 264.836273][ T7708] ? is_dynamic_key+0x1ac/0x1c0
[ 264.836295][ T7708] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 264.836324][ T7708] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 264.836363][ T7708] gfs2_fill_super+0x1388/0x21b0
[ 264.836403][ T7708] ? __pfx_gfs2_fill_super+0x10/0x10
[ 264.836433][ T7708] ? sb_set_blocksize+0x155/0x240
[ 264.836457][ T7708] ? setup_bdev_super+0x4c1/0x5b0
[ 264.836483][ T7708] get_tree_bdev_flags+0x40e/0x4d0
[ 264.836514][ T7708] ? __pfx_gfs2_fill_super+0x10/0x10
[ 264.836540][ T7708] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 264.836561][ T7708] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 264.836594][ T7708] gfs2_get_tree+0x51/0x1e0
[ 264.836622][ T7708] vfs_get_tree+0x92/0x2a0
[ 264.836648][ T7708] do_new_mount+0x31a/0xcf0
[ 264.836665][ T7708] ? apparmor_capable+0x137/0x1a0
[ 264.836687][ T7708] ? __pfx_do_new_mount+0x10/0x10
[ 264.836706][ T7708] ? ns_capable+0x8a/0xf0
[ 264.836731][ T7708] ? user_path_at+0xd4/0x160
[ 264.836755][ T7708] ? user_path_at+0xd4/0x160
[ 264.836778][ T7708] __se_sys_mount+0x313/0x410
[ 264.836803][ T7708] ? __pfx___se_sys_mount+0x10/0x10
[ 264.836828][ T7708] ? __x64_sys_mount+0x20/0xc0
[ 264.836849][ T7708] do_syscall_64+0xec/0xf80
[ 264.836870][ T7708] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 264.836887][ T7708] ? trace_irq_disable+0x37/0x100
[ 264.836902][ T7708] ? clear_bhb_loop+0x40/0x90
[ 264.836924][ T7708] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 264.836941][ T7708] RIP: 0033:0x7f1f4f99038a
[ 264.836958][ T7708] 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
[ 264.836974][ T7708] RSP: 002b:00007f1f5074ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 264.836993][ T7708] RAX: ffffffffffffffda RBX: 00007f1f5074cef0 RCX: 00007f1f4f99038a
[ 264.837007][ T7708] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f1f5074ceb0
[ 264.837020][ T7708] RBP: 000020000001f680 R08: 00007f1f5074cef0 R09: 0000000000000084
[ 264.837032][ T7708] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 264.837043][ T7708] R13: 00007f1f5074ceb0 R14: 000000000001f790 R15: 00002000000001c0
[ 264.837073][ T7708]
[ 264.837097][ T7708] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 265.027521][ T7710] loop5: detected capacity change from 0 to 32768
[ 265.119214][ T7712] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 265.132723][ T7708] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 265.235671][ T7712] CPU: 0 UID: 0 PID: 7712 Comm: syz.2.228 Not tainted syzkaller #0 PREEMPT(full)
[ 265.235696][ T7712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 265.235704][ T7712] Call Trace:
[ 265.235712][ T7712]
[ 265.235726][ T7712] dump_stack_lvl+0xe8/0x150
[ 265.235751][ T7712] sysfs_create_dir_ns+0x259/0x280
[ 265.235780][ T7712] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 265.235805][ T7712] ? do_raw_spin_unlock+0xf6/0x210
[ 265.235827][ T7712] kobject_add_internal+0x6ab/0xcc0
[ 265.235858][ T7712] kobject_init_and_add+0x125/0x190
[ 265.235884][ T7712] ? __pfx_kobject_init_and_add+0x10/0x10
[ 265.235907][ T7712] ? __raw_spin_lock_init+0x45/0x100
[ 265.235926][ T7712] ? __init_swait_queue_head+0xa9/0x150
[ 265.235957][ T7712] gfs2_sys_fs_add+0x234/0x450
[ 265.235978][ T7712] ? is_dynamic_key+0x1ac/0x1c0
[ 265.235998][ T7712] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 265.236027][ T7712] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 265.236065][ T7712] gfs2_fill_super+0x1388/0x21b0
[ 265.236106][ T7712] ? __pfx_gfs2_fill_super+0x10/0x10
[ 265.236137][ T7712] ? sb_set_blocksize+0x155/0x240
[ 265.236162][ T7712] ? setup_bdev_super+0x4c1/0x5b0
[ 265.236189][ T7712] get_tree_bdev_flags+0x40e/0x4d0
[ 265.236212][ T7712] ? __pfx_gfs2_fill_super+0x10/0x10
[ 265.236237][ T7712] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 265.236258][ T7712] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 265.236290][ T7712] gfs2_get_tree+0x51/0x1e0
[ 265.236317][ T7712] vfs_get_tree+0x92/0x2a0
[ 265.236341][ T7712] do_new_mount+0x31a/0xcf0
[ 265.236357][ T7712] ? apparmor_capable+0x137/0x1a0
[ 265.236379][ T7712] ? __pfx_do_new_mount+0x10/0x10
[ 265.236398][ T7712] ? ns_capable+0x8a/0xf0
[ 265.236423][ T7712] ? user_path_at+0xd4/0x160
[ 265.236447][ T7712] ? user_path_at+0xd4/0x160
[ 265.236469][ T7712] __se_sys_mount+0x313/0x410
[ 265.236492][ T7712] ? __pfx___se_sys_mount+0x10/0x10
[ 265.236516][ T7712] ? __x64_sys_mount+0x20/0xc0
[ 265.236537][ T7712] do_syscall_64+0xec/0xf80
[ 265.236555][ T7712] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 265.236570][ T7712] ? trace_irq_disable+0x37/0x100
[ 265.236584][ T7712] ? clear_bhb_loop+0x40/0x90
[ 265.236603][ T7712] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 265.236618][ T7712] RIP: 0033:0x7f3e03d9038a
[ 265.236636][ T7712] 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
[ 265.236651][ T7712] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 265.236671][ T7712] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 265.236684][ T7712] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 265.236697][ T7712] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 265.236709][ T7712] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 265.236728][ T7712] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 265.236756][ T7712]
[ 265.236780][ T7712] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 265.313624][ T7710] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 265.443331][ T7712] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 265.446187][ T7710] CPU: 1 UID: 0 PID: 7710 Comm: syz.5.226 Not tainted syzkaller #0 PREEMPT(full)
[ 265.446208][ T7710] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 265.446219][ T7710] Call Trace:
[ 265.446227][ T7710]
[ 265.446235][ T7710] dump_stack_lvl+0xe8/0x150
[ 265.446262][ T7710] sysfs_create_dir_ns+0x259/0x280
[ 265.446290][ T7710] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 265.446316][ T7710] ? do_raw_spin_unlock+0xf6/0x210
[ 265.446338][ T7710] kobject_add_internal+0x6ab/0xcc0
[ 265.446368][ T7710] kobject_init_and_add+0x125/0x190
[ 265.446395][ T7710] ? __pfx_kobject_init_and_add+0x10/0x10
[ 265.446417][ T7710] ? __raw_spin_lock_init+0x45/0x100
[ 265.446436][ T7710] ? __init_swait_queue_head+0xa9/0x150
[ 265.446465][ T7710] gfs2_sys_fs_add+0x234/0x450
[ 265.446485][ T7710] ? is_dynamic_key+0x1ac/0x1c0
[ 265.446506][ T7710] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 265.446533][ T7710] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 265.446571][ T7710] gfs2_fill_super+0x1388/0x21b0
[ 265.446608][ T7710] ? __pfx_gfs2_fill_super+0x10/0x10
[ 265.446638][ T7710] ? sb_set_blocksize+0x155/0x240
[ 265.446661][ T7710] ? setup_bdev_super+0x4c1/0x5b0
[ 265.446686][ T7710] get_tree_bdev_flags+0x40e/0x4d0
[ 265.446707][ T7710] ? __pfx_gfs2_fill_super+0x10/0x10
[ 265.446731][ T7710] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 265.446751][ T7710] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 265.446790][ T7710] gfs2_get_tree+0x51/0x1e0
[ 265.446817][ T7710] vfs_get_tree+0x92/0x2a0
[ 265.446841][ T7710] do_new_mount+0x31a/0xcf0
[ 265.446857][ T7710] ? apparmor_capable+0x137/0x1a0
[ 265.446879][ T7710] ? __pfx_do_new_mount+0x10/0x10
[ 265.446896][ T7710] ? ns_capable+0x8a/0xf0
[ 265.446919][ T7710] ? user_path_at+0xd4/0x160
[ 265.446945][ T7710] ? user_path_at+0xd4/0x160
[ 265.446968][ T7710] __se_sys_mount+0x313/0x410
[ 265.446992][ T7710] ? __pfx___se_sys_mount+0x10/0x10
[ 265.447017][ T7710] ? __x64_sys_mount+0x20/0xc0
[ 265.447038][ T7710] do_syscall_64+0xec/0xf80
[ 265.447058][ T7710] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 265.447075][ T7710] ? trace_irq_disable+0x37/0x100
[ 265.447090][ T7710] ? clear_bhb_loop+0x40/0x90
[ 265.447112][ T7710] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 265.447128][ T7710] RIP: 0033:0x7fa6a7d9038a
[ 265.447146][ T7710] 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
[ 265.447162][ T7710] RSP: 002b:00007fa6a8cdbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 265.447181][ T7710] RAX: ffffffffffffffda RBX: 00007fa6a8cdbef0 RCX: 00007fa6a7d9038a
[ 265.447194][ T7710] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa6a8cdbeb0
[ 265.447207][ T7710] RBP: 000020000001f680 R08: 00007fa6a8cdbef0 R09: 0000000000000084
[ 265.447219][ T7710] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 265.447231][ T7710] R13: 00007fa6a8cdbeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 265.447259][ T7710]
[ 265.447283][ T7710] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 265.932819][ T7710] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 267.037060][ T7724] loop3: detected capacity change from 0 to 32768
[ 267.078990][ T7724] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 267.132772][ T7724] CPU: 0 UID: 0 PID: 7724 Comm: syz.3.229 Not tainted syzkaller #0 PREEMPT(full)
[ 267.132798][ T7724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 267.132810][ T7724] Call Trace:
[ 267.132824][ T7724]
[ 267.132832][ T7724] dump_stack_lvl+0xe8/0x150
[ 267.132860][ T7724] sysfs_create_dir_ns+0x259/0x280
[ 267.132889][ T7724] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 267.132916][ T7724] ? do_raw_spin_unlock+0xf6/0x210
[ 267.132940][ T7724] kobject_add_internal+0x6ab/0xcc0
[ 267.132971][ T7724] kobject_init_and_add+0x125/0x190
[ 267.132999][ T7724] ? __pfx_kobject_init_and_add+0x10/0x10
[ 267.133023][ T7724] ? __raw_spin_lock_init+0x45/0x100
[ 267.133043][ T7724] ? __init_swait_queue_head+0xa9/0x150
[ 267.133073][ T7724] gfs2_sys_fs_add+0x234/0x450
[ 267.133094][ T7724] ? is_dynamic_key+0x1ac/0x1c0
[ 267.133121][ T7724] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 267.133150][ T7724] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 267.133189][ T7724] gfs2_fill_super+0x1388/0x21b0
[ 267.133230][ T7724] ? __pfx_gfs2_fill_super+0x10/0x10
[ 267.133261][ T7724] ? sb_set_blocksize+0x155/0x240
[ 267.133281][ T7724] ? setup_bdev_super+0x4c1/0x5b0
[ 267.133313][ T7724] get_tree_bdev_flags+0x40e/0x4d0
[ 267.133335][ T7724] ? __pfx_gfs2_fill_super+0x10/0x10
[ 267.133360][ T7724] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 267.133381][ T7724] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 267.133414][ T7724] gfs2_get_tree+0x51/0x1e0
[ 267.133442][ T7724] vfs_get_tree+0x92/0x2a0
[ 267.133468][ T7724] do_new_mount+0x31a/0xcf0
[ 267.133485][ T7724] ? apparmor_capable+0x137/0x1a0
[ 267.133506][ T7724] ? __pfx_do_new_mount+0x10/0x10
[ 267.133525][ T7724] ? ns_capable+0x8a/0xf0
[ 267.133548][ T7724] ? user_path_at+0xd4/0x160
[ 267.133573][ T7724] ? user_path_at+0xd4/0x160
[ 267.133596][ T7724] __se_sys_mount+0x313/0x410
[ 267.133621][ T7724] ? __pfx___se_sys_mount+0x10/0x10
[ 267.133646][ T7724] ? __x64_sys_mount+0x20/0xc0
[ 267.133667][ T7724] do_syscall_64+0xec/0xf80
[ 267.133688][ T7724] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 267.133705][ T7724] ? trace_irq_disable+0x37/0x100
[ 267.133720][ T7724] ? clear_bhb_loop+0x40/0x90
[ 267.133742][ T7724] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 267.133759][ T7724] RIP: 0033:0x7f1860b9038a
[ 267.133776][ T7724] 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
[ 267.133791][ T7724] RSP: 002b:00007f18601fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 267.133811][ T7724] RAX: ffffffffffffffda RBX: 00007f18601fdef0 RCX: 00007f1860b9038a
[ 267.133823][ T7724] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f18601fdeb0
[ 267.133836][ T7724] RBP: 000020000001f680 R08: 00007f18601fdef0 R09: 0000000000000084
[ 267.133848][ T7724] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 267.133859][ T7724] R13: 00007f18601fdeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 267.133888][ T7724]
[ 267.507257][ T7730] loop2: detected capacity change from 0 to 32768
[ 267.531884][ T7726] loop4: detected capacity change from 0 to 32768
[ 267.584222][ T7729] loop1: detected capacity change from 0 to 32768
[ 267.613483][ T7724] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 267.639694][ T7724] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 267.658008][ T7730] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 267.666218][ T7730] CPU: 0 UID: 0 PID: 7730 Comm: syz.2.232 Not tainted syzkaller #0 PREEMPT(full)
[ 267.666243][ T7730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 267.666253][ T7730] Call Trace:
[ 267.666272][ T7730]
[ 267.666280][ T7730] dump_stack_lvl+0xe8/0x150
[ 267.666308][ T7730] sysfs_create_dir_ns+0x259/0x280
[ 267.666337][ T7730] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 267.666362][ T7730] ? do_raw_spin_unlock+0xf6/0x210
[ 267.666384][ T7730] kobject_add_internal+0x6ab/0xcc0
[ 267.666416][ T7730] kobject_init_and_add+0x125/0x190
[ 267.666445][ T7730] ? __pfx_kobject_init_and_add+0x10/0x10
[ 267.666470][ T7730] ? __raw_spin_lock_init+0x45/0x100
[ 267.666489][ T7730] ? __init_swait_queue_head+0xa9/0x150
[ 267.666516][ T7730] gfs2_sys_fs_add+0x234/0x450
[ 267.666537][ T7730] ? is_dynamic_key+0x1ac/0x1c0
[ 267.666558][ T7730] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 267.666586][ T7730] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 267.666625][ T7730] gfs2_fill_super+0x1388/0x21b0
[ 267.666662][ T7730] ? __pfx_gfs2_fill_super+0x10/0x10
[ 267.666691][ T7730] ? sb_set_blocksize+0x155/0x240
[ 267.666714][ T7730] ? setup_bdev_super+0x4c1/0x5b0
[ 267.666738][ T7730] get_tree_bdev_flags+0x40e/0x4d0
[ 267.666766][ T7730] ? __pfx_gfs2_fill_super+0x10/0x10
[ 267.666791][ T7730] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 267.666811][ T7730] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 267.666843][ T7730] gfs2_get_tree+0x51/0x1e0
[ 267.666870][ T7730] vfs_get_tree+0x92/0x2a0
[ 267.666894][ T7730] do_new_mount+0x31a/0xcf0
[ 267.666911][ T7730] ? apparmor_capable+0x137/0x1a0
[ 267.666933][ T7730] ? __pfx_do_new_mount+0x10/0x10
[ 267.666951][ T7730] ? ns_capable+0x8a/0xf0
[ 267.666973][ T7730] ? user_path_at+0xd4/0x160
[ 267.666998][ T7730] ? user_path_at+0xd4/0x160
[ 267.667020][ T7730] __se_sys_mount+0x313/0x410
[ 267.667046][ T7730] ? __pfx___se_sys_mount+0x10/0x10
[ 267.667072][ T7730] ? __x64_sys_mount+0x20/0xc0
[ 267.667093][ T7730] do_syscall_64+0xec/0xf80
[ 267.667114][ T7730] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 267.667130][ T7730] ? trace_irq_disable+0x37/0x100
[ 267.667145][ T7730] ? clear_bhb_loop+0x40/0x90
[ 267.667165][ T7730] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 267.667182][ T7730] RIP: 0033:0x7f3e03d9038a
[ 267.667199][ T7730] 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
[ 267.667214][ T7730] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 267.667232][ T7730] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 267.667245][ T7730] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 267.667266][ T7730] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 267.667278][ T7730] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 267.667289][ T7730] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 267.667318][ T7730]
[ 267.667343][ T7730] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 267.683720][ T7726] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 267.687527][ T7730] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 267.697016][ T7726] CPU: 1 UID: 0 PID: 7726 Comm: syz.4.230 Not tainted syzkaller #0 PREEMPT(full)
[ 267.697040][ T7726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 267.697052][ T7726] Call Trace:
[ 267.697059][ T7726]
[ 267.697066][ T7726] dump_stack_lvl+0xe8/0x150
[ 267.697094][ T7726] sysfs_create_dir_ns+0x259/0x280
[ 267.697123][ T7726] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 267.697148][ T7726] ? do_raw_spin_unlock+0xf6/0x210
[ 267.697169][ T7726] kobject_add_internal+0x6ab/0xcc0
[ 267.697199][ T7726] kobject_init_and_add+0x125/0x190
[ 267.697226][ T7726] ? __pfx_kobject_init_and_add+0x10/0x10
[ 267.697249][ T7726] ? __raw_spin_lock_init+0x45/0x100
[ 267.697265][ T7726] ? __init_swait_queue_head+0xa9/0x150
[ 267.697293][ T7726] gfs2_sys_fs_add+0x234/0x450
[ 267.697313][ T7726] ? is_dynamic_key+0x1ac/0x1c0
[ 267.697334][ T7726] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 267.697361][ T7726] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 267.697399][ T7726] gfs2_fill_super+0x1388/0x21b0
[ 267.697437][ T7726] ? __pfx_gfs2_fill_super+0x10/0x10
[ 267.697465][ T7726] ? sb_set_blocksize+0x155/0x240
[ 267.697489][ T7726] ? setup_bdev_super+0x4c1/0x5b0
[ 267.697525][ T7726] get_tree_bdev_flags+0x40e/0x4d0
[ 267.697548][ T7726] ? __pfx_gfs2_fill_super+0x10/0x10
[ 267.697572][ T7726] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 267.697591][ T7726] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 267.697623][ T7726] gfs2_get_tree+0x51/0x1e0
[ 267.697649][ T7726] vfs_get_tree+0x92/0x2a0
[ 267.697673][ T7726] do_new_mount+0x31a/0xcf0
[ 267.697689][ T7726] ? apparmor_capable+0x137/0x1a0
[ 267.697710][ T7726] ? __pfx_do_new_mount+0x10/0x10
[ 267.697728][ T7726] ? ns_capable+0x8a/0xf0
[ 267.697751][ T7726] ? user_path_at+0xd4/0x160
[ 267.697775][ T7726] ? user_path_at+0xd4/0x160
[ 267.697797][ T7726] __se_sys_mount+0x313/0x410
[ 267.697820][ T7726] ? __pfx___se_sys_mount+0x10/0x10
[ 267.697845][ T7726] ? __x64_sys_mount+0x20/0xc0
[ 267.697865][ T7726] do_syscall_64+0xec/0xf80
[ 267.697883][ T7726] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 267.697899][ T7726] ? trace_irq_disable+0x37/0x100
[ 267.697914][ T7726] ? clear_bhb_loop+0x40/0x90
[ 267.697935][ T7726] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 267.697952][ T7726] RIP: 0033:0x7fd998d9038a
[ 267.697968][ T7726] 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
[ 267.697983][ T7726] RSP: 002b:00007fd999b60e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 267.698002][ T7726] RAX: ffffffffffffffda RBX: 00007fd999b60ef0 RCX: 00007fd998d9038a
[ 267.698014][ T7726] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd999b60eb0
[ 267.698026][ T7726] RBP: 000020000001f680 R08: 00007fd999b60ef0 R09: 0000000000000084
[ 267.698037][ T7726] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 267.698049][ T7726] R13: 00007fd999b60eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 267.698076][ T7726]
[ 267.698101][ T7726] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 267.735300][ T7732] loop5: detected capacity change from 0 to 32768
[ 267.871790][ T7729] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 267.872347][ T7726] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 268.178141][ T7729] CPU: 1 UID: 0 PID: 7729 Comm: syz.1.231 Not tainted syzkaller #0 PREEMPT(full)
[ 268.178165][ T7729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 268.178177][ T7729] Call Trace:
[ 268.178185][ T7729]
[ 268.178192][ T7729] dump_stack_lvl+0xe8/0x150
[ 268.178220][ T7729] sysfs_create_dir_ns+0x259/0x280
[ 268.178248][ T7729] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 268.178271][ T7729] ? do_raw_spin_unlock+0xf6/0x210
[ 268.178289][ T7729] kobject_add_internal+0x6ab/0xcc0
[ 268.178314][ T7729] kobject_init_and_add+0x125/0x190
[ 268.178336][ T7729] ? __pfx_kobject_init_and_add+0x10/0x10
[ 268.178358][ T7729] ? __raw_spin_lock_init+0x45/0x100
[ 268.178377][ T7729] ? __init_swait_queue_head+0xa9/0x150
[ 268.178406][ T7729] gfs2_sys_fs_add+0x234/0x450
[ 268.178425][ T7729] ? is_dynamic_key+0x1ac/0x1c0
[ 268.178447][ T7729] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 268.178474][ T7729] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 268.178521][ T7729] gfs2_fill_super+0x1388/0x21b0
[ 268.178560][ T7729] ? __pfx_gfs2_fill_super+0x10/0x10
[ 268.178590][ T7729] ? sb_set_blocksize+0x155/0x240
[ 268.178613][ T7729] ? setup_bdev_super+0x4c1/0x5b0
[ 268.178637][ T7729] get_tree_bdev_flags+0x40e/0x4d0
[ 268.178660][ T7729] ? __pfx_gfs2_fill_super+0x10/0x10
[ 268.178684][ T7729] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 268.178704][ T7729] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 268.178736][ T7729] gfs2_get_tree+0x51/0x1e0
[ 268.178763][ T7729] vfs_get_tree+0x92/0x2a0
2026/01/17 18:07:37 executed programs: 227
[ 268.178787][ T7729] do_new_mount+0x31a/0xcf0
[ 268.178803][ T7729] ? apparmor_capable+0x137/0x1a0
[ 268.178824][ T7729] ? __pfx_do_new_mount+0x10/0x10
[ 268.178841][ T7729] ? ns_capable+0x8a/0xf0
[ 268.178865][ T7729] ? user_path_at+0xd4/0x160
[ 268.178887][ T7729] ? user_path_at+0xd4/0x160
[ 268.178909][ T7729] __se_sys_mount+0x313/0x410
[ 268.178932][ T7729] ? __pfx___se_sys_mount+0x10/0x10
[ 268.178956][ T7729] ? __x64_sys_mount+0x20/0xc0
[ 268.178977][ T7729] do_syscall_64+0xec/0xf80
[ 268.178995][ T7729] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 268.179011][ T7729] ? trace_irq_disable+0x37/0x100
[ 268.179025][ T7729] ? clear_bhb_loop+0x40/0x90
[ 268.179046][ T7729] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 268.179063][ T7729] RIP: 0033:0x7f1f4f99038a
[ 268.179079][ T7729] 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
[ 268.179095][ T7729] RSP: 002b:00007f1f5074ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 268.179113][ T7729] RAX: ffffffffffffffda RBX: 00007f1f5074cef0 RCX: 00007f1f4f99038a
[ 268.179125][ T7729] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f1f5074ceb0
[ 268.179137][ T7729] RBP: 000020000001f680 R08: 00007f1f5074cef0 R09: 0000000000000084
[ 268.179149][ T7729] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 268.179160][ T7729] R13: 00007f1f5074ceb0 R14: 000000000001f790 R15: 00002000000001c0
[ 268.179188][ T7729]
[ 268.179211][ T7729] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 268.344969][ T7732] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 268.474160][ T7729] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 268.693376][ T7732] CPU: 1 UID: 0 PID: 7732 Comm: syz.5.233 Not tainted syzkaller #0 PREEMPT(full)
[ 268.693402][ T7732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 268.693414][ T7732] Call Trace:
[ 268.693428][ T7732]
[ 268.693436][ T7732] dump_stack_lvl+0xe8/0x150
[ 268.693470][ T7732] sysfs_create_dir_ns+0x259/0x280
[ 268.693499][ T7732] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 268.693526][ T7732] ? do_raw_spin_unlock+0xf6/0x210
[ 268.693549][ T7732] kobject_add_internal+0x6ab/0xcc0
[ 268.693580][ T7732] kobject_init_and_add+0x125/0x190
[ 268.693608][ T7732] ? __pfx_kobject_init_and_add+0x10/0x10
[ 268.693632][ T7732] ? __raw_spin_lock_init+0x45/0x100
[ 268.693651][ T7732] ? __init_swait_queue_head+0xa9/0x150
[ 268.693681][ T7732] gfs2_sys_fs_add+0x234/0x450
[ 268.693702][ T7732] ? is_dynamic_key+0x1ac/0x1c0
[ 268.693724][ T7732] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 268.693752][ T7732] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 268.693791][ T7732] gfs2_fill_super+0x1388/0x21b0
[ 268.693833][ T7732] ? __pfx_gfs2_fill_super+0x10/0x10
[ 268.693863][ T7732] ? sb_set_blocksize+0x155/0x240
[ 268.693888][ T7732] ? setup_bdev_super+0x4c1/0x5b0
[ 268.693914][ T7732] get_tree_bdev_flags+0x40e/0x4d0
[ 268.693937][ T7732] ? __pfx_gfs2_fill_super+0x10/0x10
[ 268.693963][ T7732] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 268.693984][ T7732] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 268.694016][ T7732] gfs2_get_tree+0x51/0x1e0
[ 268.694045][ T7732] vfs_get_tree+0x92/0x2a0
[ 268.694071][ T7732] do_new_mount+0x31a/0xcf0
[ 268.694088][ T7732] ? apparmor_capable+0x137/0x1a0
[ 268.694110][ T7732] ? __pfx_do_new_mount+0x10/0x10
[ 268.694128][ T7732] ? ns_capable+0x8a/0xf0
[ 268.694153][ T7732] ? user_path_at+0xd4/0x160
[ 268.694178][ T7732] ? user_path_at+0xd4/0x160
[ 268.694201][ T7732] __se_sys_mount+0x313/0x410
[ 268.694225][ T7732] ? __pfx___se_sys_mount+0x10/0x10
[ 268.694251][ T7732] ? __x64_sys_mount+0x20/0xc0
[ 268.694272][ T7732] do_syscall_64+0xec/0xf80
[ 268.694292][ T7732] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 268.694309][ T7732] ? trace_irq_disable+0x37/0x100
[ 268.694325][ T7732] ? clear_bhb_loop+0x40/0x90
[ 268.694347][ T7732] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 268.694364][ T7732] RIP: 0033:0x7fa6a7d9038a
[ 268.694382][ T7732] 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
[ 268.694398][ T7732] RSP: 002b:00007fa6a8cdbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 268.694417][ T7732] RAX: ffffffffffffffda RBX: 00007fa6a8cdbef0 RCX: 00007fa6a7d9038a
[ 268.694431][ T7732] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa6a8cdbeb0
[ 268.694449][ T7732] RBP: 000020000001f680 R08: 00007fa6a8cdbef0 R09: 0000000000000084
[ 268.694461][ T7732] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 268.694473][ T7732] R13: 00007fa6a8cdbeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 268.694502][ T7732]
[ 268.694526][ T7732] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 269.083307][ T7732] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 270.189215][ T7747] loop2: detected capacity change from 0 to 32768
[ 270.249174][ T7747] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 270.269088][ T7747] CPU: 1 UID: 0 PID: 7747 Comm: syz.2.235 Not tainted syzkaller #0 PREEMPT(full)
[ 270.269115][ T7747] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 270.269126][ T7747] Call Trace:
[ 270.269134][ T7747]
[ 270.269142][ T7747] dump_stack_lvl+0xe8/0x150
[ 270.269171][ T7747] sysfs_create_dir_ns+0x259/0x280
[ 270.269201][ T7747] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 270.269228][ T7747] ? do_raw_spin_unlock+0xf6/0x210
[ 270.269252][ T7747] kobject_add_internal+0x6ab/0xcc0
[ 270.269284][ T7747] kobject_init_and_add+0x125/0x190
[ 270.269312][ T7747] ? __pfx_kobject_init_and_add+0x10/0x10
[ 270.269336][ T7747] ? __raw_spin_lock_init+0x45/0x100
[ 270.269355][ T7747] ? __init_swait_queue_head+0xa9/0x150
[ 270.269391][ T7747] gfs2_sys_fs_add+0x234/0x450
[ 270.269412][ T7747] ? is_dynamic_key+0x1ac/0x1c0
[ 270.269434][ T7747] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 270.269463][ T7747] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 270.269502][ T7747] gfs2_fill_super+0x1388/0x21b0
[ 270.269543][ T7747] ? __pfx_gfs2_fill_super+0x10/0x10
[ 270.269574][ T7747] ? sb_set_blocksize+0x155/0x240
[ 270.269599][ T7747] ? setup_bdev_super+0x4c1/0x5b0
[ 270.269625][ T7747] get_tree_bdev_flags+0x40e/0x4d0
[ 270.269649][ T7747] ? __pfx_gfs2_fill_super+0x10/0x10
[ 270.269674][ T7747] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 270.269695][ T7747] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 270.269728][ T7747] gfs2_get_tree+0x51/0x1e0
[ 270.269756][ T7747] vfs_get_tree+0x92/0x2a0
[ 270.269782][ T7747] do_new_mount+0x31a/0xcf0
[ 270.269799][ T7747] ? apparmor_capable+0x137/0x1a0
[ 270.269821][ T7747] ? __pfx_do_new_mount+0x10/0x10
[ 270.269839][ T7747] ? ns_capable+0x8a/0xf0
[ 270.269864][ T7747] ? user_path_at+0xd4/0x160
[ 270.269890][ T7747] ? user_path_at+0xd4/0x160
[ 270.269913][ T7747] __se_sys_mount+0x313/0x410
[ 270.269937][ T7747] ? __pfx___se_sys_mount+0x10/0x10
[ 270.269963][ T7747] ? __x64_sys_mount+0x20/0xc0
[ 270.269984][ T7747] do_syscall_64+0xec/0xf80
[ 270.270004][ T7747] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 270.270021][ T7747] ? trace_irq_disable+0x37/0x100
[ 270.270037][ T7747] ? clear_bhb_loop+0x40/0x90
[ 270.270059][ T7747] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 270.270076][ T7747] RIP: 0033:0x7f3e03d9038a
[ 270.270093][ T7747] 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
[ 270.270109][ T7747] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 270.270128][ T7747] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 270.270141][ T7747] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 270.270153][ T7747] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 270.270165][ T7747] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 270.270177][ T7747] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 270.270205][ T7747]
[ 270.270230][ T7747] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 270.301498][ T7745] loop3: detected capacity change from 0 to 32768
[ 270.362628][ T7749] loop1: detected capacity change from 0 to 32768
[ 270.369282][ T7747] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 270.570348][ T7751] loop4: detected capacity change from 0 to 32768
[ 270.652307][ T7749] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 270.671614][ T7749] CPU: 0 UID: 0 PID: 7749 Comm: syz.1.236 Not tainted syzkaller #0 PREEMPT(full)
[ 270.671635][ T7749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 270.671644][ T7749] Call Trace:
[ 270.671650][ T7749]
[ 270.671657][ T7749] dump_stack_lvl+0xe8/0x150
[ 270.671679][ T7749] sysfs_create_dir_ns+0x259/0x280
[ 270.671702][ T7749] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 270.671723][ T7749] ? do_raw_spin_unlock+0xf6/0x210
[ 270.671740][ T7749] kobject_add_internal+0x6ab/0xcc0
[ 270.671767][ T7749] kobject_init_and_add+0x125/0x190
[ 270.671792][ T7749] ? __pfx_kobject_init_and_add+0x10/0x10
[ 270.671814][ T7749] ? __raw_spin_lock_init+0x45/0x100
[ 270.671831][ T7749] ? __init_swait_queue_head+0xa9/0x150
[ 270.671856][ T7749] gfs2_sys_fs_add+0x234/0x450
[ 270.671874][ T7749] ? is_dynamic_key+0x1ac/0x1c0
[ 270.671893][ T7749] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 270.671920][ T7749] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 270.671956][ T7749] gfs2_fill_super+0x1388/0x21b0
[ 270.671993][ T7749] ? __pfx_gfs2_fill_super+0x10/0x10
[ 270.672019][ T7749] ? sb_set_blocksize+0x155/0x240
[ 270.672041][ T7749] ? setup_bdev_super+0x4c1/0x5b0
[ 270.672065][ T7749] get_tree_bdev_flags+0x40e/0x4d0
[ 270.672087][ T7749] ? __pfx_gfs2_fill_super+0x10/0x10
[ 270.672109][ T7749] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 270.672127][ T7749] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 270.672157][ T7749] gfs2_get_tree+0x51/0x1e0
[ 270.672182][ T7749] vfs_get_tree+0x92/0x2a0
[ 270.672202][ T7749] do_new_mount+0x31a/0xcf0
[ 270.672222][ T7749] ? apparmor_capable+0x137/0x1a0
[ 270.672242][ T7749] ? __pfx_do_new_mount+0x10/0x10
[ 270.672257][ T7749] ? ns_capable+0x8a/0xf0
[ 270.672279][ T7749] ? user_path_at+0xd4/0x160
[ 270.672301][ T7749] ? user_path_at+0xd4/0x160
[ 270.672320][ T7749] __se_sys_mount+0x313/0x410
[ 270.672342][ T7749] ? __pfx___se_sys_mount+0x10/0x10
[ 270.672365][ T7749] ? __x64_sys_mount+0x20/0xc0
[ 270.672395][ T7749] do_syscall_64+0xec/0xf80
[ 270.672412][ T7749] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 270.672427][ T7749] ? trace_irq_disable+0x37/0x100
[ 270.672441][ T7749] ? clear_bhb_loop+0x40/0x90
[ 270.672459][ T7749] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 270.672476][ T7749] RIP: 0033:0x7f1f4f99038a
[ 270.672492][ T7749] 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
[ 270.672509][ T7749] RSP: 002b:00007f1f5074ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 270.672529][ T7749] RAX: ffffffffffffffda RBX: 00007f1f5074cef0 RCX: 00007f1f4f99038a
[ 270.672542][ T7749] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f1f5074ceb0
[ 270.672554][ T7749] RBP: 000020000001f680 R08: 00007f1f5074cef0 R09: 0000000000000084
[ 270.672565][ T7749] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 270.672575][ T7749] R13: 00007f1f5074ceb0 R14: 000000000001f790 R15: 00002000000001c0
[ 270.672603][ T7749]
[ 270.672747][ T7749] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 270.790369][ T7745] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 270.873680][ T7751] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 270.878451][ T7745] CPU: 1 UID: 0 PID: 7745 Comm: syz.3.234 Not tainted syzkaller #0 PREEMPT(full)
[ 270.878473][ T7745] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 270.878484][ T7745] Call Trace:
[ 270.878491][ T7745]
[ 270.878499][ T7745] dump_stack_lvl+0xe8/0x150
[ 270.878527][ T7745] sysfs_create_dir_ns+0x259/0x280
[ 270.878555][ T7745] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 270.878581][ T7745] ? do_raw_spin_unlock+0xf6/0x210
[ 270.878602][ T7745] kobject_add_internal+0x6ab/0xcc0
[ 270.878632][ T7745] kobject_init_and_add+0x125/0x190
[ 270.878660][ T7745] ? __pfx_kobject_init_and_add+0x10/0x10
[ 270.878681][ T7745] ? __raw_spin_lock_init+0x45/0x100
[ 270.878700][ T7745] ? __init_swait_queue_head+0xa9/0x150
[ 270.878730][ T7745] gfs2_sys_fs_add+0x234/0x450
[ 270.878749][ T7745] ? is_dynamic_key+0x1ac/0x1c0
[ 270.878769][ T7745] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 270.878798][ T7745] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 270.878835][ T7745] gfs2_fill_super+0x1388/0x21b0
[ 270.878874][ T7745] ? __pfx_gfs2_fill_super+0x10/0x10
[ 270.878902][ T7745] ? sb_set_blocksize+0x155/0x240
[ 270.878925][ T7745] ? setup_bdev_super+0x4c1/0x5b0
[ 270.878950][ T7745] get_tree_bdev_flags+0x40e/0x4d0
[ 270.878972][ T7745] ? __pfx_gfs2_fill_super+0x10/0x10
[ 270.878996][ T7745] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 270.879016][ T7745] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 270.879047][ T7745] gfs2_get_tree+0x51/0x1e0
[ 270.879074][ T7745] vfs_get_tree+0x92/0x2a0
[ 270.879098][ T7745] do_new_mount+0x31a/0xcf0
[ 270.879140][ T7745] ? apparmor_capable+0x137/0x1a0
[ 270.879160][ T7745] ? __pfx_do_new_mount+0x10/0x10
[ 270.879179][ T7745] ? ns_capable+0x8a/0xf0
[ 270.879201][ T7745] ? user_path_at+0xd4/0x160
[ 270.879226][ T7745] ? user_path_at+0xd4/0x160
[ 270.879247][ T7745] __se_sys_mount+0x313/0x410
[ 270.879271][ T7745] ? __pfx___se_sys_mount+0x10/0x10
[ 270.879295][ T7745] ? __x64_sys_mount+0x20/0xc0
[ 270.879315][ T7745] do_syscall_64+0xec/0xf80
[ 270.879335][ T7745] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 270.879351][ T7745] ? trace_irq_disable+0x37/0x100
[ 270.879365][ T7745] ? clear_bhb_loop+0x40/0x90
[ 270.879385][ T7745] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 270.879402][ T7745] RIP: 0033:0x7f1860b9038a
[ 270.879419][ T7745] 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
[ 270.879435][ T7745] RSP: 002b:00007f18601fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 270.879453][ T7745] RAX: ffffffffffffffda RBX: 00007f18601fdef0 RCX: 00007f1860b9038a
[ 270.879466][ T7745] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f18601fdeb0
[ 270.879477][ T7745] RBP: 000020000001f680 R08: 00007f18601fdef0 R09: 0000000000000084
[ 270.879488][ T7745] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 270.879500][ T7745] R13: 00007f18601fdeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 270.879528][ T7745]
[ 270.879553][ T7745] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 270.920697][ T7749] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 271.204606][ T7751] CPU: 0 UID: 0 PID: 7751 Comm: syz.4.237 Not tainted syzkaller #0 PREEMPT(full)
[ 271.204631][ T7751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 271.204643][ T7751] Call Trace:
[ 271.204651][ T7751]
[ 271.204659][ T7751] dump_stack_lvl+0xe8/0x150
[ 271.204686][ T7751] sysfs_create_dir_ns+0x259/0x280
[ 271.204715][ T7751] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 271.204741][ T7751] ? do_raw_spin_unlock+0xf6/0x210
[ 271.204762][ T7751] kobject_add_internal+0x6ab/0xcc0
[ 271.204793][ T7751] kobject_init_and_add+0x125/0x190
[ 271.204820][ T7751] ? __pfx_kobject_init_and_add+0x10/0x10
[ 271.204843][ T7751] ? __raw_spin_lock_init+0x45/0x100
[ 271.204860][ T7751] ? __init_swait_queue_head+0xa9/0x150
[ 271.204889][ T7751] gfs2_sys_fs_add+0x234/0x450
[ 271.204913][ T7751] ? is_dynamic_key+0x1ac/0x1c0
[ 271.204934][ T7751] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 271.204961][ T7751] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 271.204997][ T7751] gfs2_fill_super+0x1388/0x21b0
[ 271.205036][ T7751] ? __pfx_gfs2_fill_super+0x10/0x10
[ 271.205065][ T7751] ? sb_set_blocksize+0x155/0x240
[ 271.205088][ T7751] ? setup_bdev_super+0x4c1/0x5b0
[ 271.205112][ T7751] get_tree_bdev_flags+0x40e/0x4d0
[ 271.205133][ T7751] ? __pfx_gfs2_fill_super+0x10/0x10
[ 271.205157][ T7751] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 271.205177][ T7751] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 271.205208][ T7751] gfs2_get_tree+0x51/0x1e0
[ 271.205243][ T7751] vfs_get_tree+0x92/0x2a0
[ 271.205267][ T7751] do_new_mount+0x31a/0xcf0
[ 271.205283][ T7751] ? apparmor_capable+0x137/0x1a0
[ 271.205305][ T7751] ? __pfx_do_new_mount+0x10/0x10
[ 271.205322][ T7751] ? ns_capable+0x8a/0xf0
[ 271.205346][ T7751] ? user_path_at+0xd4/0x160
[ 271.205370][ T7751] ? user_path_at+0xd4/0x160
[ 271.205391][ T7751] __se_sys_mount+0x313/0x410
[ 271.205415][ T7751] ? __pfx___se_sys_mount+0x10/0x10
[ 271.205439][ T7751] ? __x64_sys_mount+0x20/0xc0
[ 271.205459][ T7751] do_syscall_64+0xec/0xf80
[ 271.205477][ T7751] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 271.205494][ T7751] ? trace_irq_disable+0x37/0x100
[ 271.205509][ T7751] ? clear_bhb_loop+0x40/0x90
[ 271.205529][ T7751] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 271.205546][ T7751] RIP: 0033:0x7fd998d9038a
[ 271.205563][ T7751] 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
[ 271.205578][ T7751] RSP: 002b:00007fd999b60e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 271.205596][ T7751] RAX: ffffffffffffffda RBX: 00007fd999b60ef0 RCX: 00007fd998d9038a
[ 271.205609][ T7751] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd999b60eb0
[ 271.205620][ T7751] RBP: 000020000001f680 R08: 00007fd999b60ef0 R09: 0000000000000084
[ 271.205632][ T7751] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 271.205643][ T7751] R13: 00007fd999b60eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 271.205671][ T7751]
[ 271.205776][ T7751] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 271.273442][ T7745] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 271.411761][ T7751] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 271.591219][ T7753] loop5: detected capacity change from 0 to 32768
[ 271.791426][ T7753] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 271.868836][ T7753] CPU: 0 UID: 0 PID: 7753 Comm: syz.5.238 Not tainted syzkaller #0 PREEMPT(full)
[ 271.868858][ T7753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 271.868868][ T7753] Call Trace:
[ 271.868875][ T7753]
[ 271.868881][ T7753] dump_stack_lvl+0xe8/0x150
[ 271.868907][ T7753] sysfs_create_dir_ns+0x259/0x280
[ 271.868932][ T7753] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 271.868954][ T7753] ? do_raw_spin_unlock+0xf6/0x210
[ 271.868972][ T7753] kobject_add_internal+0x6ab/0xcc0
[ 271.869009][ T7753] kobject_init_and_add+0x125/0x190
[ 271.869034][ T7753] ? __pfx_kobject_init_and_add+0x10/0x10
[ 271.869054][ T7753] ? __raw_spin_lock_init+0x45/0x100
[ 271.869070][ T7753] ? __init_swait_queue_head+0xa9/0x150
[ 271.869094][ T7753] gfs2_sys_fs_add+0x234/0x450
[ 271.869112][ T7753] ? is_dynamic_key+0x1ac/0x1c0
[ 271.869130][ T7753] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 271.869153][ T7753] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 271.869184][ T7753] gfs2_fill_super+0x1388/0x21b0
[ 271.869218][ T7753] ? __pfx_gfs2_fill_super+0x10/0x10
[ 271.869243][ T7753] ? sb_set_blocksize+0x155/0x240
[ 271.869263][ T7753] ? setup_bdev_super+0x4c1/0x5b0
[ 271.869285][ T7753] get_tree_bdev_flags+0x40e/0x4d0
[ 271.869304][ T7753] ? __pfx_gfs2_fill_super+0x10/0x10
[ 271.869326][ T7753] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 271.869343][ T7753] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 271.869369][ T7753] gfs2_get_tree+0x51/0x1e0
[ 271.869393][ T7753] vfs_get_tree+0x92/0x2a0
[ 271.869413][ T7753] do_new_mount+0x31a/0xcf0
[ 271.869428][ T7753] ? apparmor_capable+0x137/0x1a0
[ 271.869446][ T7753] ? __pfx_do_new_mount+0x10/0x10
[ 271.869461][ T7753] ? ns_capable+0x8a/0xf0
[ 271.869481][ T7753] ? user_path_at+0xd4/0x160
[ 271.869505][ T7753] ? user_path_at+0xd4/0x160
[ 271.869524][ T7753] __se_sys_mount+0x313/0x410
[ 271.869544][ T7753] ? __pfx___se_sys_mount+0x10/0x10
[ 271.869565][ T7753] ? __x64_sys_mount+0x20/0xc0
[ 271.869583][ T7753] do_syscall_64+0xec/0xf80
[ 271.869601][ T7753] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 271.869614][ T7753] ? trace_irq_disable+0x37/0x100
[ 271.869627][ T7753] ? clear_bhb_loop+0x40/0x90
[ 271.869645][ T7753] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 271.869660][ T7753] RIP: 0033:0x7fa6a7d9038a
[ 271.869675][ T7753] 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
[ 271.869689][ T7753] RSP: 002b:00007fa6a8cdbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 271.869706][ T7753] RAX: ffffffffffffffda RBX: 00007fa6a8cdbef0 RCX: 00007fa6a7d9038a
[ 271.869717][ T7753] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa6a8cdbeb0
[ 271.869727][ T7753] RBP: 000020000001f680 R08: 00007fa6a8cdbef0 R09: 0000000000000084
[ 271.869737][ T7753] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 271.869747][ T7753] R13: 00007fa6a8cdbeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 271.869772][ T7753]
[ 271.869794][ T7753] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 272.243441][ T7753] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 272.990058][ T7765] loop1: detected capacity change from 0 to 32768
[ 273.030949][ T7765] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 273.072194][ T7765] CPU: 0 UID: 0 PID: 7765 Comm: syz.1.240 Not tainted syzkaller #0 PREEMPT(full)
[ 273.072219][ T7765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 273.072230][ T7765] Call Trace:
[ 273.072238][ T7765]
[ 273.072246][ T7765] dump_stack_lvl+0xe8/0x150
[ 273.072274][ T7765] sysfs_create_dir_ns+0x259/0x280
[ 273.072300][ T7765] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 273.072325][ T7765] ? do_raw_spin_unlock+0xf6/0x210
[ 273.072348][ T7765] kobject_add_internal+0x6ab/0xcc0
[ 273.072381][ T7765] kobject_init_and_add+0x125/0x190
[ 273.072409][ T7765] ? __pfx_kobject_init_and_add+0x10/0x10
[ 273.072432][ T7765] ? __raw_spin_lock_init+0x45/0x100
[ 273.072451][ T7765] ? __init_swait_queue_head+0xa9/0x150
[ 273.072480][ T7765] gfs2_sys_fs_add+0x234/0x450
[ 273.072499][ T7765] ? is_dynamic_key+0x1ac/0x1c0
[ 273.072520][ T7765] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 273.072547][ T7765] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 273.072584][ T7765] gfs2_fill_super+0x1388/0x21b0
[ 273.072620][ T7765] ? __pfx_gfs2_fill_super+0x10/0x10
[ 273.072650][ T7765] ? sb_set_blocksize+0x155/0x240
[ 273.072674][ T7765] ? setup_bdev_super+0x4c1/0x5b0
[ 273.072700][ T7765] get_tree_bdev_flags+0x40e/0x4d0
[ 273.072723][ T7765] ? __pfx_gfs2_fill_super+0x10/0x10
[ 273.072748][ T7765] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 273.072770][ T7765] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 273.072803][ T7765] gfs2_get_tree+0x51/0x1e0
[ 273.072831][ T7765] vfs_get_tree+0x92/0x2a0
[ 273.072856][ T7765] do_new_mount+0x31a/0xcf0
[ 273.072873][ T7765] ? apparmor_capable+0x137/0x1a0
[ 273.072895][ T7765] ? __pfx_do_new_mount+0x10/0x10
[ 273.072913][ T7765] ? ns_capable+0x8a/0xf0
[ 273.072938][ T7765] ? user_path_at+0xd4/0x160
[ 273.072963][ T7765] ? user_path_at+0xd4/0x160
[ 273.072986][ T7765] __se_sys_mount+0x313/0x410
[ 273.073011][ T7765] ? __pfx___se_sys_mount+0x10/0x10
[ 273.073036][ T7765] ? __x64_sys_mount+0x20/0xc0
[ 273.073057][ T7765] do_syscall_64+0xec/0xf80
[ 273.073078][ T7765] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 273.073102][ T7765] ? trace_irq_disable+0x37/0x100
[ 273.073118][ T7765] ? clear_bhb_loop+0x40/0x90
[ 273.073139][ T7765] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 273.073156][ T7765] RIP: 0033:0x7f1f4f99038a
[ 273.073174][ T7765] 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
[ 273.073189][ T7765] RSP: 002b:00007f1f5074ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 273.073207][ T7765] RAX: ffffffffffffffda RBX: 00007f1f5074cef0 RCX: 00007f1f4f99038a
[ 273.073219][ T7765] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f1f5074ceb0
[ 273.073229][ T7765] RBP: 000020000001f680 R08: 00007f1f5074cef0 R09: 0000000000000084
[ 273.073238][ T7765] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 273.073252][ T7765] R13: 00007f1f5074ceb0 R14: 000000000001f790 R15: 00002000000001c0
[ 273.073276][ T7765]
[ 273.433442][ T7765] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 273.497522][ T7771] loop4: detected capacity change from 0 to 32768
[ 273.503324][ T7765] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 273.506377][ T6305] Bluetooth: hci5: command 0x0406 tx timeout
[ 273.544199][ T7771] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 273.553044][ T7771] CPU: 0 UID: 0 PID: 7771 Comm: syz.4.242 Not tainted syzkaller #0 PREEMPT(full)
[ 273.553068][ T7771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 273.553079][ T7771] Call Trace:
[ 273.553087][ T7771]
[ 273.553094][ T7771] dump_stack_lvl+0xe8/0x150
[ 273.553123][ T7771] sysfs_create_dir_ns+0x259/0x280
[ 273.553198][ T7771] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 273.553227][ T7771] ? do_raw_spin_unlock+0xf6/0x210
[ 273.553252][ T7771] kobject_add_internal+0x6ab/0xcc0
[ 273.553279][ T7771] kobject_init_and_add+0x125/0x190
[ 273.553302][ T7771] ? __pfx_kobject_init_and_add+0x10/0x10
[ 273.553323][ T7771] ? __raw_spin_lock_init+0x45/0x100
[ 273.553340][ T7771] ? __init_swait_queue_head+0xa9/0x150
[ 273.553367][ T7771] gfs2_sys_fs_add+0x234/0x450
[ 273.553384][ T7771] ? is_dynamic_key+0x1ac/0x1c0
[ 273.553402][ T7771] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 273.553428][ T7771] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 273.553461][ T7771] gfs2_fill_super+0x1388/0x21b0
[ 273.553497][ T7771] ? __pfx_gfs2_fill_super+0x10/0x10
[ 273.553523][ T7771] ? sb_set_blocksize+0x155/0x240
[ 273.553544][ T7771] ? setup_bdev_super+0x4c1/0x5b0
[ 273.553567][ T7771] get_tree_bdev_flags+0x40e/0x4d0
[ 273.553588][ T7771] ? __pfx_gfs2_fill_super+0x10/0x10
[ 273.553611][ T7771] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 273.553630][ T7771] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 273.553661][ T7771] gfs2_get_tree+0x51/0x1e0
[ 273.553685][ T7771] vfs_get_tree+0x92/0x2a0
[ 273.553708][ T7771] do_new_mount+0x31a/0xcf0
[ 273.553725][ T7771] ? apparmor_capable+0x137/0x1a0
[ 273.553748][ T7771] ? __pfx_do_new_mount+0x10/0x10
[ 273.553766][ T7771] ? ns_capable+0x8a/0xf0
[ 273.553789][ T7771] ? user_path_at+0xd4/0x160
[ 273.553813][ T7771] ? user_path_at+0xd4/0x160
[ 273.553834][ T7771] __se_sys_mount+0x313/0x410
[ 273.553856][ T7771] ? __pfx___se_sys_mount+0x10/0x10
[ 273.553879][ T7771] ? __x64_sys_mount+0x20/0xc0
[ 273.553896][ T7771] do_syscall_64+0xec/0xf80
[ 273.553915][ T7771] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 273.553930][ T7771] ? trace_irq_disable+0x37/0x100
[ 273.553946][ T7771] ? clear_bhb_loop+0x40/0x90
[ 273.553966][ T7771] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 273.553984][ T7771] RIP: 0033:0x7fd998d9038a
[ 273.554001][ T7771] 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
[ 273.554017][ T7771] RSP: 002b:00007fd999b60e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 273.554037][ T7771] RAX: ffffffffffffffda RBX: 00007fd999b60ef0 RCX: 00007fd998d9038a
[ 273.554051][ T7771] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd999b60eb0
[ 273.554064][ T7771] RBP: 000020000001f680 R08: 00007fd999b60ef0 R09: 0000000000000084
[ 273.554074][ T7771] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 273.554084][ T7771] R13: 00007fd999b60eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 273.554113][ T7771]
[ 273.854700][ T7771] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 273.893592][ T7767] loop3: detected capacity change from 0 to 32768
[ 273.998404][ T7771] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 274.002592][ T7769] loop2: detected capacity change from 0 to 32768
[ 274.042625][ T7767] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 274.055778][ T7769] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 274.102170][ T7767] CPU: 1 UID: 0 PID: 7767 Comm: syz.3.239 Not tainted syzkaller #0 PREEMPT(full)
[ 274.102195][ T7767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 274.102206][ T7767] Call Trace:
[ 274.102213][ T7767]
[ 274.102222][ T7767] dump_stack_lvl+0xe8/0x150
[ 274.102249][ T7767] sysfs_create_dir_ns+0x259/0x280
[ 274.102280][ T7767] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 274.102307][ T7767] ? do_raw_spin_unlock+0xf6/0x210
[ 274.102330][ T7767] kobject_add_internal+0x6ab/0xcc0
[ 274.102359][ T7767] kobject_init_and_add+0x125/0x190
[ 274.102386][ T7767] ? __pfx_kobject_init_and_add+0x10/0x10
[ 274.102409][ T7767] ? __raw_spin_lock_init+0x45/0x100
[ 274.102427][ T7767] ? __init_swait_queue_head+0xa9/0x150
[ 274.102457][ T7767] gfs2_sys_fs_add+0x234/0x450
[ 274.102478][ T7767] ? is_dynamic_key+0x1ac/0x1c0
[ 274.102501][ T7767] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 274.102531][ T7767] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 274.102570][ T7767] gfs2_fill_super+0x1388/0x21b0
[ 274.102615][ T7767] ? __pfx_gfs2_fill_super+0x10/0x10
[ 274.102645][ T7767] ? sb_set_blocksize+0x155/0x240
[ 274.102670][ T7767] ? setup_bdev_super+0x4c1/0x5b0
[ 274.102697][ T7767] get_tree_bdev_flags+0x40e/0x4d0
[ 274.102721][ T7767] ? __pfx_gfs2_fill_super+0x10/0x10
[ 274.102747][ T7767] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 274.102767][ T7767] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 274.102997][ T7767] gfs2_get_tree+0x51/0x1e0
[ 274.103030][ T7767] vfs_get_tree+0x92/0x2a0
[ 274.103055][ T7767] do_new_mount+0x31a/0xcf0
[ 274.103093][ T7767] ? apparmor_capable+0x137/0x1a0
[ 274.103117][ T7767] ? __pfx_do_new_mount+0x10/0x10
[ 274.103137][ T7767] ? ns_capable+0x8a/0xf0
[ 274.103161][ T7767] ? user_path_at+0xd4/0x160
[ 274.103187][ T7767] ? user_path_at+0xd4/0x160
[ 274.103210][ T7767] __se_sys_mount+0x313/0x410
[ 274.103233][ T7767] ? __pfx___se_sys_mount+0x10/0x10
[ 274.103258][ T7767] ? __x64_sys_mount+0x20/0xc0
[ 274.103275][ T7767] do_syscall_64+0xec/0xf80
[ 274.103293][ T7767] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 274.103307][ T7767] ? trace_irq_disable+0x37/0x100
[ 274.103321][ T7767] ? clear_bhb_loop+0x40/0x90
[ 274.103342][ T7767] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 274.103359][ T7767] RIP: 0033:0x7f1860b9038a
[ 274.103377][ T7767] 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
[ 274.103393][ T7767] RSP: 002b:00007f18601fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 274.103412][ T7767] RAX: ffffffffffffffda RBX: 00007f18601fdef0 RCX: 00007f1860b9038a
[ 274.103431][ T7767] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f18601fdeb0
[ 274.103444][ T7767] RBP: 000020000001f680 R08: 00007f18601fdef0 R09: 0000000000000084
[ 274.103457][ T7767] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 274.103468][ T7767] R13: 00007f18601fdeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 274.103498][ T7767]
[ 274.218503][ T7769] CPU: 0 UID: 0 PID: 7769 Comm: syz.2.241 Not tainted syzkaller #0 PREEMPT(full)
[ 274.218527][ T7769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 274.218539][ T7769] Call Trace:
[ 274.218547][ T7769]
[ 274.218555][ T7769] dump_stack_lvl+0xe8/0x150
[ 274.218581][ T7769] sysfs_create_dir_ns+0x259/0x280
[ 274.218610][ T7769] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 274.218636][ T7769] ? do_raw_spin_unlock+0xf6/0x210
[ 274.218658][ T7769] kobject_add_internal+0x6ab/0xcc0
[ 274.218687][ T7769] kobject_init_and_add+0x125/0x190
[ 274.218714][ T7769] ? __pfx_kobject_init_and_add+0x10/0x10
[ 274.218737][ T7769] ? __raw_spin_lock_init+0x45/0x100
[ 274.218762][ T7769] ? __init_swait_queue_head+0xa9/0x150
[ 274.218791][ T7769] gfs2_sys_fs_add+0x234/0x450
[ 274.218811][ T7769] ? is_dynamic_key+0x1ac/0x1c0
[ 274.218832][ T7769] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 274.218859][ T7769] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 274.218897][ T7769] gfs2_fill_super+0x1388/0x21b0
[ 274.218936][ T7769] ? __pfx_gfs2_fill_super+0x10/0x10
[ 274.218964][ T7769] ? sb_set_blocksize+0x155/0x240
[ 274.218987][ T7769] ? setup_bdev_super+0x4c1/0x5b0
[ 274.219012][ T7769] get_tree_bdev_flags+0x40e/0x4d0
[ 274.219034][ T7769] ? __pfx_gfs2_fill_super+0x10/0x10
[ 274.219059][ T7769] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 274.219078][ T7769] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 274.219109][ T7769] gfs2_get_tree+0x51/0x1e0
[ 274.219136][ T7769] vfs_get_tree+0x92/0x2a0
[ 274.219161][ T7769] do_new_mount+0x31a/0xcf0
2026/01/17 18:07:43 executed programs: 237
[ 274.219177][ T7769] ? apparmor_capable+0x137/0x1a0
[ 274.219197][ T7769] ? __pfx_do_new_mount+0x10/0x10
[ 274.219215][ T7769] ? ns_capable+0x8a/0xf0
[ 274.219238][ T7769] ? user_path_at+0xd4/0x160
[ 274.219262][ T7769] ? user_path_at+0xd4/0x160
[ 274.219284][ T7769] __se_sys_mount+0x313/0x410
[ 274.219307][ T7769] ? __pfx___se_sys_mount+0x10/0x10
[ 274.219331][ T7769] ? __x64_sys_mount+0x20/0xc0
[ 274.219351][ T7769] do_syscall_64+0xec/0xf80
[ 274.219370][ T7769] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 274.219385][ T7769] ? trace_irq_disable+0x37/0x100
[ 274.219401][ T7769] ? clear_bhb_loop+0x40/0x90
[ 274.219421][ T7769] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 274.219437][ T7769] RIP: 0033:0x7f3e03d9038a
[ 274.219454][ T7769] 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
[ 274.219469][ T7769] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 274.219487][ T7769] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 274.219500][ T7769] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 274.219512][ T7769] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 274.219523][ T7769] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 274.219534][ T7769] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 274.219562][ T7769]
[ 274.219584][ T7769] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 274.351030][ T7773] loop5: detected capacity change from 0 to 32768
[ 274.387983][ T7767] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 274.388009][ T7767] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 274.483423][ T7769] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 274.812429][ T7773] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 274.920516][ T7773] CPU: 1 UID: 0 PID: 7773 Comm: syz.5.243 Not tainted syzkaller #0 PREEMPT(full)
[ 274.920541][ T7773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 274.920553][ T7773] Call Trace:
[ 274.920560][ T7773]
[ 274.920569][ T7773] dump_stack_lvl+0xe8/0x150
[ 274.920596][ T7773] sysfs_create_dir_ns+0x259/0x280
[ 274.920625][ T7773] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 274.920652][ T7773] ? do_raw_spin_unlock+0xf6/0x210
[ 274.920674][ T7773] kobject_add_internal+0x6ab/0xcc0
[ 274.920758][ T7773] kobject_init_and_add+0x125/0x190
[ 274.920789][ T7773] ? __pfx_kobject_init_and_add+0x10/0x10
[ 274.920813][ T7773] ? __raw_spin_lock_init+0x45/0x100
[ 274.920832][ T7773] ? __init_swait_queue_head+0xa9/0x150
[ 274.920863][ T7773] gfs2_sys_fs_add+0x234/0x450
[ 274.920883][ T7773] ? is_dynamic_key+0x1ac/0x1c0
[ 274.920906][ T7773] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 274.920935][ T7773] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 274.920974][ T7773] gfs2_fill_super+0x1388/0x21b0
[ 274.921015][ T7773] ? __pfx_gfs2_fill_super+0x10/0x10
[ 274.921046][ T7773] ? sb_set_blocksize+0x155/0x240
[ 274.921070][ T7773] ? setup_bdev_super+0x4c1/0x5b0
[ 274.921097][ T7773] get_tree_bdev_flags+0x40e/0x4d0
[ 274.921119][ T7773] ? __pfx_gfs2_fill_super+0x10/0x10
[ 274.921145][ T7773] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 274.921166][ T7773] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 274.921199][ T7773] gfs2_get_tree+0x51/0x1e0
[ 274.921227][ T7773] vfs_get_tree+0x92/0x2a0
[ 274.921253][ T7773] do_new_mount+0x31a/0xcf0
[ 274.921270][ T7773] ? apparmor_capable+0x137/0x1a0
[ 274.921292][ T7773] ? __pfx_do_new_mount+0x10/0x10
[ 274.921311][ T7773] ? ns_capable+0x8a/0xf0
[ 274.921335][ T7773] ? user_path_at+0xd4/0x160
[ 274.921361][ T7773] ? user_path_at+0xd4/0x160
[ 274.921385][ T7773] __se_sys_mount+0x313/0x410
[ 274.921410][ T7773] ? __pfx___se_sys_mount+0x10/0x10
[ 274.921434][ T7773] ? __x64_sys_mount+0x20/0xc0
[ 274.921455][ T7773] do_syscall_64+0xec/0xf80
[ 274.921476][ T7773] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 274.921493][ T7773] ? trace_irq_disable+0x37/0x100
[ 274.921509][ T7773] ? clear_bhb_loop+0x40/0x90
[ 274.921530][ T7773] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 274.921547][ T7773] RIP: 0033:0x7fa6a7d9038a
[ 274.921565][ T7773] 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
[ 274.921580][ T7773] RSP: 002b:00007fa6a8cdbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 274.921600][ T7773] RAX: ffffffffffffffda RBX: 00007fa6a8cdbef0 RCX: 00007fa6a7d9038a
[ 274.921612][ T7773] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa6a8cdbeb0
[ 274.921623][ T7773] RBP: 000020000001f680 R08: 00007fa6a8cdbef0 R09: 0000000000000084
[ 274.921634][ T7773] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 274.921645][ T7773] R13: 00007fa6a8cdbeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 274.921673][ T7773]
[ 274.921697][ T7773] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 275.244435][ T7773] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 275.978141][ T7784] loop1: detected capacity change from 0 to 32768
[ 276.026917][ T7784] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 276.053419][ T7784] CPU: 0 UID: 0 PID: 7784 Comm: syz.1.244 Not tainted syzkaller #0 PREEMPT(full)
[ 276.053444][ T7784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 276.053456][ T7784] Call Trace:
[ 276.053463][ T7784]
[ 276.053471][ T7784] dump_stack_lvl+0xe8/0x150
[ 276.053500][ T7784] sysfs_create_dir_ns+0x259/0x280
[ 276.053529][ T7784] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 276.053556][ T7784] ? do_raw_spin_unlock+0xf6/0x210
[ 276.053579][ T7784] kobject_add_internal+0x6ab/0xcc0
[ 276.053616][ T7784] kobject_init_and_add+0x125/0x190
[ 276.053644][ T7784] ? __pfx_kobject_init_and_add+0x10/0x10
[ 276.053668][ T7784] ? __raw_spin_lock_init+0x45/0x100
[ 276.053688][ T7784] ? __init_swait_queue_head+0xa9/0x150
[ 276.053717][ T7784] gfs2_sys_fs_add+0x234/0x450
[ 276.053738][ T7784] ? is_dynamic_key+0x1ac/0x1c0
[ 276.053760][ T7784] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 276.053788][ T7784] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 276.053828][ T7784] gfs2_fill_super+0x1388/0x21b0
[ 276.053868][ T7784] ? __pfx_gfs2_fill_super+0x10/0x10
[ 276.053899][ T7784] ? sb_set_blocksize+0x155/0x240
[ 276.053924][ T7784] ? setup_bdev_super+0x4c1/0x5b0
[ 276.053950][ T7784] get_tree_bdev_flags+0x40e/0x4d0
[ 276.053980][ T7784] ? __pfx_gfs2_fill_super+0x10/0x10
[ 276.054005][ T7784] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 276.054026][ T7784] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 276.054059][ T7784] gfs2_get_tree+0x51/0x1e0
[ 276.054088][ T7784] vfs_get_tree+0x92/0x2a0
[ 276.054113][ T7784] do_new_mount+0x31a/0xcf0
[ 276.054131][ T7784] ? apparmor_capable+0x137/0x1a0
[ 276.054153][ T7784] ? __pfx_do_new_mount+0x10/0x10
[ 276.054171][ T7784] ? ns_capable+0x8a/0xf0
[ 276.054196][ T7784] ? user_path_at+0xd4/0x160
[ 276.054221][ T7784] ? user_path_at+0xd4/0x160
[ 276.054244][ T7784] __se_sys_mount+0x313/0x410
[ 276.054269][ T7784] ? __pfx___se_sys_mount+0x10/0x10
[ 276.054294][ T7784] ? __x64_sys_mount+0x20/0xc0
[ 276.054316][ T7784] do_syscall_64+0xec/0xf80
[ 276.054336][ T7784] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 276.054353][ T7784] ? trace_irq_disable+0x37/0x100
[ 276.054369][ T7784] ? clear_bhb_loop+0x40/0x90
[ 276.054390][ T7784] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 276.054407][ T7784] RIP: 0033:0x7f1f4f99038a
[ 276.054424][ T7784] 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
[ 276.054440][ T7784] RSP: 002b:00007f1f5074ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 276.054458][ T7784] RAX: ffffffffffffffda RBX: 00007f1f5074cef0 RCX: 00007f1f4f99038a
[ 276.054471][ T7784] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f1f5074ceb0
[ 276.054484][ T7784] RBP: 000020000001f680 R08: 00007f1f5074cef0 R09: 0000000000000084
[ 276.054496][ T7784] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 276.054507][ T7784] R13: 00007f1f5074ceb0 R14: 000000000001f790 R15: 00002000000001c0
[ 276.054536][ T7784]
[ 276.054561][ T7784] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 276.376252][ T7784] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 276.423461][ T7788] loop3: detected capacity change from 0 to 32768
[ 276.484981][ T7788] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 276.564362][ T7788] CPU: 1 UID: 0 PID: 7788 Comm: syz.3.246 Not tainted syzkaller #0 PREEMPT(full)
[ 276.564387][ T7788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 276.564398][ T7788] Call Trace:
[ 276.564406][ T7788]
[ 276.564413][ T7788] dump_stack_lvl+0xe8/0x150
[ 276.564442][ T7788] sysfs_create_dir_ns+0x259/0x280
[ 276.564471][ T7788] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 276.564499][ T7788] ? do_raw_spin_unlock+0xf6/0x210
[ 276.564521][ T7788] kobject_add_internal+0x6ab/0xcc0
[ 276.564553][ T7788] kobject_init_and_add+0x125/0x190
[ 276.564580][ T7788] ? __pfx_kobject_init_and_add+0x10/0x10
[ 276.564604][ T7788] ? __raw_spin_lock_init+0x45/0x100
[ 276.564624][ T7788] ? __init_swait_queue_head+0xa9/0x150
[ 276.564654][ T7788] gfs2_sys_fs_add+0x234/0x450
[ 276.564675][ T7788] ? is_dynamic_key+0x1ac/0x1c0
[ 276.564704][ T7788] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 276.564733][ T7788] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 276.564772][ T7788] gfs2_fill_super+0x1388/0x21b0
[ 276.564813][ T7788] ? __pfx_gfs2_fill_super+0x10/0x10
[ 276.564842][ T7788] ? sb_set_blocksize+0x155/0x240
[ 276.564866][ T7788] ? setup_bdev_super+0x4c1/0x5b0
[ 276.564892][ T7788] get_tree_bdev_flags+0x40e/0x4d0
[ 276.564916][ T7788] ? __pfx_gfs2_fill_super+0x10/0x10
[ 276.564941][ T7788] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 276.564961][ T7788] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 276.564993][ T7788] gfs2_get_tree+0x51/0x1e0
[ 276.565019][ T7788] vfs_get_tree+0x92/0x2a0
[ 276.565044][ T7788] do_new_mount+0x31a/0xcf0
[ 276.565061][ T7788] ? apparmor_capable+0x137/0x1a0
[ 276.565082][ T7788] ? __pfx_do_new_mount+0x10/0x10
[ 276.565101][ T7788] ? ns_capable+0x8a/0xf0
[ 276.565125][ T7788] ? user_path_at+0xd4/0x160
[ 276.565150][ T7788] ? user_path_at+0xd4/0x160
[ 276.565173][ T7788] __se_sys_mount+0x313/0x410
[ 276.565199][ T7788] ? __pfx___se_sys_mount+0x10/0x10
[ 276.565224][ T7788] ? __x64_sys_mount+0x20/0xc0
[ 276.565245][ T7788] do_syscall_64+0xec/0xf80
[ 276.565265][ T7788] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 276.565282][ T7788] ? trace_irq_disable+0x37/0x100
[ 276.565297][ T7788] ? clear_bhb_loop+0x40/0x90
[ 276.565318][ T7788] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 276.565335][ T7788] RIP: 0033:0x7f1860b9038a
[ 276.565352][ T7788] 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
[ 276.565367][ T7788] RSP: 002b:00007f18601fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 276.565387][ T7788] RAX: ffffffffffffffda RBX: 00007f18601fdef0 RCX: 00007f1860b9038a
[ 276.565400][ T7788] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f18601fdeb0
[ 276.565412][ T7788] RBP: 000020000001f680 R08: 00007f18601fdef0 R09: 0000000000000084
[ 276.565424][ T7788] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 276.565435][ T7788] R13: 00007f18601fdeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 276.565464][ T7788]
[ 276.565488][ T7788] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 276.737132][ T7789] loop4: detected capacity change from 0 to 32768
[ 276.766498][ T7788] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 276.864683][ T7791] loop2: detected capacity change from 0 to 32768
[ 276.963198][ T7789] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 276.993812][ T7791] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 277.021007][ T7791] CPU: 1 UID: 0 PID: 7791 Comm: syz.2.247 Not tainted syzkaller #0 PREEMPT(full)
[ 277.021033][ T7791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 277.021044][ T7791] Call Trace:
[ 277.021051][ T7791]
[ 277.021060][ T7791] dump_stack_lvl+0xe8/0x150
[ 277.021086][ T7791] sysfs_create_dir_ns+0x259/0x280
[ 277.021114][ T7791] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 277.021140][ T7791] ? do_raw_spin_unlock+0xf6/0x210
[ 277.021163][ T7791] kobject_add_internal+0x6ab/0xcc0
[ 277.021196][ T7791] kobject_init_and_add+0x125/0x190
[ 277.021224][ T7791] ? __pfx_kobject_init_and_add+0x10/0x10
[ 277.021248][ T7791] ? __raw_spin_lock_init+0x45/0x100
[ 277.021266][ T7791] ? __init_swait_queue_head+0xa9/0x150
[ 277.021295][ T7791] gfs2_sys_fs_add+0x234/0x450
[ 277.021315][ T7791] ? is_dynamic_key+0x1ac/0x1c0
[ 277.021337][ T7791] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 277.021366][ T7791] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 277.021405][ T7791] gfs2_fill_super+0x1388/0x21b0
[ 277.021447][ T7791] ? __pfx_gfs2_fill_super+0x10/0x10
[ 277.021477][ T7791] ? sb_set_blocksize+0x155/0x240
[ 277.021499][ T7791] ? setup_bdev_super+0x4c1/0x5b0
[ 277.021526][ T7791] get_tree_bdev_flags+0x40e/0x4d0
[ 277.021549][ T7791] ? __pfx_gfs2_fill_super+0x10/0x10
[ 277.021575][ T7791] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 277.021596][ T7791] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 277.021628][ T7791] gfs2_get_tree+0x51/0x1e0
[ 277.021656][ T7791] vfs_get_tree+0x92/0x2a0
[ 277.021680][ T7791] do_new_mount+0x31a/0xcf0
[ 277.021698][ T7791] ? apparmor_capable+0x137/0x1a0
[ 277.021721][ T7791] ? __pfx_do_new_mount+0x10/0x10
[ 277.021740][ T7791] ? ns_capable+0x8a/0xf0
[ 277.021765][ T7791] ? user_path_at+0xd4/0x160
[ 277.021797][ T7791] ? user_path_at+0xd4/0x160
[ 277.021819][ T7791] __se_sys_mount+0x313/0x410
[ 277.021844][ T7791] ? __pfx___se_sys_mount+0x10/0x10
[ 277.021870][ T7791] ? __x64_sys_mount+0x20/0xc0
[ 277.021892][ T7791] do_syscall_64+0xec/0xf80
[ 277.021913][ T7791] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 277.021930][ T7791] ? trace_irq_disable+0x37/0x100
[ 277.021946][ T7791] ? clear_bhb_loop+0x40/0x90
[ 277.021968][ T7791] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 277.021985][ T7791] RIP: 0033:0x7f3e03d9038a
[ 277.022002][ T7791] 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
[ 277.022017][ T7791] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 277.022036][ T7791] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 277.022050][ T7791] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 277.022062][ T7791] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 277.022075][ T7791] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 277.022087][ T7791] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 277.022117][ T7791]
[ 277.022141][ T7791] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 277.037222][ T7789] CPU: 0 UID: 0 PID: 7789 Comm: syz.4.245 Not tainted syzkaller #0 PREEMPT(full)
[ 277.037246][ T7789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 277.037257][ T7789] Call Trace:
[ 277.037264][ T7789]
[ 277.037272][ T7789] dump_stack_lvl+0xe8/0x150
[ 277.037299][ T7789] sysfs_create_dir_ns+0x259/0x280
[ 277.037327][ T7789] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 277.037353][ T7789] ? do_raw_spin_unlock+0xf6/0x210
[ 277.037374][ T7789] kobject_add_internal+0x6ab/0xcc0
[ 277.037404][ T7789] kobject_init_and_add+0x125/0x190
[ 277.037431][ T7789] ? __pfx_kobject_init_and_add+0x10/0x10
[ 277.037454][ T7789] ? __raw_spin_lock_init+0x45/0x100
[ 277.037472][ T7789] ? __init_swait_queue_head+0xa9/0x150
[ 277.037501][ T7789] gfs2_sys_fs_add+0x234/0x450
[ 277.037521][ T7789] ? is_dynamic_key+0x1ac/0x1c0
[ 277.037550][ T7789] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 277.037578][ T7789] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 277.037621][ T7789] gfs2_fill_super+0x1388/0x21b0
[ 277.037660][ T7789] ? __pfx_gfs2_fill_super+0x10/0x10
[ 277.037689][ T7789] ? sb_set_blocksize+0x155/0x240
[ 277.037713][ T7789] ? setup_bdev_super+0x4c1/0x5b0
[ 277.037738][ T7789] get_tree_bdev_flags+0x40e/0x4d0
[ 277.037759][ T7789] ? __pfx_gfs2_fill_super+0x10/0x10
[ 277.037784][ T7789] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 277.037803][ T7789] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 277.037834][ T7789] gfs2_get_tree+0x51/0x1e0
[ 277.037861][ T7789] vfs_get_tree+0x92/0x2a0
[ 277.037885][ T7789] do_new_mount+0x31a/0xcf0
[ 277.037902][ T7789] ? apparmor_capable+0x137/0x1a0
[ 277.037923][ T7789] ? __pfx_do_new_mount+0x10/0x10
[ 277.037941][ T7789] ? ns_capable+0x8a/0xf0
[ 277.037964][ T7789] ? user_path_at+0xd4/0x160
[ 277.037989][ T7789] ? user_path_at+0xd4/0x160
[ 277.038010][ T7789] __se_sys_mount+0x313/0x410
[ 277.038034][ T7789] ? __pfx___se_sys_mount+0x10/0x10
[ 277.038058][ T7789] ? __x64_sys_mount+0x20/0xc0
[ 277.038078][ T7789] do_syscall_64+0xec/0xf80
[ 277.038098][ T7789] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 277.038113][ T7789] ? trace_irq_disable+0x37/0x100
[ 277.038128][ T7789] ? clear_bhb_loop+0x40/0x90
[ 277.038148][ T7789] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 277.038165][ T7789] RIP: 0033:0x7fd998d9038a
[ 277.038182][ T7789] 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
[ 277.038197][ T7789] RSP: 002b:00007fd999b60e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 277.038215][ T7789] RAX: ffffffffffffffda RBX: 00007fd999b60ef0 RCX: 00007fd998d9038a
[ 277.038227][ T7789] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd999b60eb0
[ 277.038239][ T7789] RBP: 000020000001f680 R08: 00007fd999b60ef0 R09: 0000000000000084
[ 277.038251][ T7789] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 277.038262][ T7789] R13: 00007fd999b60eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 277.038290][ T7789]
[ 277.038313][ T7789] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 277.193364][ T7791] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 277.213338][ T7789] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 277.844442][ T7793] loop5: detected capacity change from 0 to 32768
[ 277.881594][ T7793] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 277.923641][ T7793] CPU: 0 UID: 0 PID: 7793 Comm: syz.5.248 Not tainted syzkaller #0 PREEMPT(full)
[ 277.923664][ T7793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 277.923673][ T7793] Call Trace:
[ 277.923679][ T7793]
[ 277.923686][ T7793] dump_stack_lvl+0xe8/0x150
[ 277.923733][ T7793] sysfs_create_dir_ns+0x259/0x280
[ 277.923758][ T7793] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 277.923778][ T7793] ? do_raw_spin_unlock+0xf6/0x210
[ 277.923802][ T7793] kobject_add_internal+0x6ab/0xcc0
[ 277.923827][ T7793] kobject_init_and_add+0x125/0x190
[ 277.923849][ T7793] ? __pfx_kobject_init_and_add+0x10/0x10
[ 277.923867][ T7793] ? __raw_spin_lock_init+0x45/0x100
[ 277.923891][ T7793] ? __init_swait_queue_head+0xa9/0x150
[ 277.923915][ T7793] gfs2_sys_fs_add+0x234/0x450
[ 277.923931][ T7793] ? is_dynamic_key+0x1ac/0x1c0
[ 277.923948][ T7793] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 277.923970][ T7793] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 277.924004][ T7793] gfs2_fill_super+0x1388/0x21b0
[ 277.924036][ T7793] ? __pfx_gfs2_fill_super+0x10/0x10
[ 277.924059][ T7793] ? sb_set_blocksize+0x155/0x240
[ 277.924078][ T7793] ? setup_bdev_super+0x4c1/0x5b0
[ 277.924098][ T7793] get_tree_bdev_flags+0x40e/0x4d0
[ 277.924116][ T7793] ? __pfx_gfs2_fill_super+0x10/0x10
[ 277.924136][ T7793] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 277.924152][ T7793] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 277.924178][ T7793] gfs2_get_tree+0x51/0x1e0
[ 277.924200][ T7793] vfs_get_tree+0x92/0x2a0
[ 277.924219][ T7793] do_new_mount+0x31a/0xcf0
[ 277.924233][ T7793] ? apparmor_capable+0x137/0x1a0
[ 277.924250][ T7793] ? __pfx_do_new_mount+0x10/0x10
[ 277.924264][ T7793] ? ns_capable+0x8a/0xf0
[ 277.924283][ T7793] ? user_path_at+0xd4/0x160
[ 277.924302][ T7793] ? user_path_at+0xd4/0x160
[ 277.924320][ T7793] __se_sys_mount+0x313/0x410
[ 277.924339][ T7793] ? __pfx___se_sys_mount+0x10/0x10
[ 277.924359][ T7793] ? __x64_sys_mount+0x20/0xc0
[ 277.924375][ T7793] do_syscall_64+0xec/0xf80
[ 277.924390][ T7793] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 277.924403][ T7793] ? trace_irq_disable+0x37/0x100
[ 277.924416][ T7793] ? clear_bhb_loop+0x40/0x90
[ 277.924432][ T7793] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 277.924445][ T7793] RIP: 0033:0x7fa6a7d9038a
[ 277.924460][ T7793] 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
[ 277.924472][ T7793] RSP: 002b:00007fa6a8cdbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 277.924487][ T7793] RAX: ffffffffffffffda RBX: 00007fa6a8cdbef0 RCX: 00007fa6a7d9038a
[ 277.924498][ T7793] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa6a8cdbeb0
[ 277.924508][ T7793] RBP: 000020000001f680 R08: 00007fa6a8cdbef0 R09: 0000000000000084
[ 277.924517][ T7793] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 277.924526][ T7793] R13: 00007fa6a8cdbeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 277.924549][ T7793]
[ 277.924573][ T7793] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 278.243484][ T7793] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 278.663219][ T7801] loop1: detected capacity change from 0 to 32768
[ 278.722466][ T7801] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 278.757293][ T7801] CPU: 0 UID: 0 PID: 7801 Comm: syz.1.249 Not tainted syzkaller #0 PREEMPT(full)
[ 278.757318][ T7801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 278.757330][ T7801] Call Trace:
[ 278.757337][ T7801]
[ 278.757345][ T7801] dump_stack_lvl+0xe8/0x150
[ 278.757373][ T7801] sysfs_create_dir_ns+0x259/0x280
[ 278.757402][ T7801] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 278.757429][ T7801] ? do_raw_spin_unlock+0xf6/0x210
[ 278.757451][ T7801] kobject_add_internal+0x6ab/0xcc0
[ 278.757483][ T7801] kobject_init_and_add+0x125/0x190
[ 278.757517][ T7801] ? __pfx_kobject_init_and_add+0x10/0x10
[ 278.757541][ T7801] ? __raw_spin_lock_init+0x45/0x100
[ 278.757560][ T7801] ? __init_swait_queue_head+0xa9/0x150
[ 278.757590][ T7801] gfs2_sys_fs_add+0x234/0x450
[ 278.757611][ T7801] ? is_dynamic_key+0x1ac/0x1c0
[ 278.757633][ T7801] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 278.757661][ T7801] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 278.757700][ T7801] gfs2_fill_super+0x1388/0x21b0
[ 278.757741][ T7801] ? __pfx_gfs2_fill_super+0x10/0x10
[ 278.757770][ T7801] ? sb_set_blocksize+0x155/0x240
[ 278.757795][ T7801] ? setup_bdev_super+0x4c1/0x5b0
[ 278.757820][ T7801] get_tree_bdev_flags+0x40e/0x4d0
[ 278.757843][ T7801] ? __pfx_gfs2_fill_super+0x10/0x10
[ 278.757868][ T7801] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 278.757889][ T7801] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 278.757921][ T7801] gfs2_get_tree+0x51/0x1e0
[ 278.757951][ T7801] vfs_get_tree+0x92/0x2a0
[ 278.757976][ T7801] do_new_mount+0x31a/0xcf0
[ 278.757993][ T7801] ? apparmor_capable+0x137/0x1a0
[ 278.758015][ T7801] ? __pfx_do_new_mount+0x10/0x10
[ 278.758034][ T7801] ? ns_capable+0x8a/0xf0
[ 278.758059][ T7801] ? user_path_at+0xd4/0x160
[ 278.758084][ T7801] ? user_path_at+0xd4/0x160
[ 278.758107][ T7801] __se_sys_mount+0x313/0x410
[ 278.758133][ T7801] ? __pfx___se_sys_mount+0x10/0x10
[ 278.758158][ T7801] ? __x64_sys_mount+0x20/0xc0
[ 278.758179][ T7801] do_syscall_64+0xec/0xf80
[ 278.758199][ T7801] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 278.758216][ T7801] ? trace_irq_disable+0x37/0x100
[ 278.758232][ T7801] ? clear_bhb_loop+0x40/0x90
[ 278.758254][ T7801] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 278.758271][ T7801] RIP: 0033:0x7f1f4f99038a
[ 278.758289][ T7801] 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
[ 278.758304][ T7801] RSP: 002b:00007f1f5074ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 278.758323][ T7801] RAX: ffffffffffffffda RBX: 00007f1f5074cef0 RCX: 00007f1f4f99038a
[ 278.758336][ T7801] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f1f5074ceb0
[ 278.758349][ T7801] RBP: 000020000001f680 R08: 00007f1f5074cef0 R09: 0000000000000084
[ 278.758360][ T7801] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 278.758372][ T7801] R13: 00007f1f5074ceb0 R14: 000000000001f790 R15: 00002000000001c0
[ 278.758400][ T7801]
[ 278.758425][ T7801] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 279.102664][ T7806] loop3: detected capacity change from 0 to 32768
[ 279.109242][ T7801] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 279.135392][ T7806] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 279.153171][ T7806] CPU: 0 UID: 0 PID: 7806 Comm: syz.3.250 Not tainted syzkaller #0 PREEMPT(full)
[ 279.153196][ T7806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 279.153207][ T7806] Call Trace:
[ 279.153215][ T7806]
[ 279.153223][ T7806] dump_stack_lvl+0xe8/0x150
[ 279.153254][ T7806] sysfs_create_dir_ns+0x259/0x280
[ 279.153282][ T7806] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 279.153305][ T7806] ? do_raw_spin_unlock+0xf6/0x210
[ 279.153324][ T7806] kobject_add_internal+0x6ab/0xcc0
[ 279.153352][ T7806] kobject_init_and_add+0x125/0x190
[ 279.153377][ T7806] ? __pfx_kobject_init_and_add+0x10/0x10
[ 279.153399][ T7806] ? __raw_spin_lock_init+0x45/0x100
[ 279.153417][ T7806] ? __init_swait_queue_head+0xa9/0x150
[ 279.153442][ T7806] gfs2_sys_fs_add+0x234/0x450
[ 279.153461][ T7806] ? is_dynamic_key+0x1ac/0x1c0
[ 279.153480][ T7806] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 279.153507][ T7806] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 279.153542][ T7806] gfs2_fill_super+0x1388/0x21b0
[ 279.153578][ T7806] ? __pfx_gfs2_fill_super+0x10/0x10
[ 279.153612][ T7806] ? sb_set_blocksize+0x155/0x240
[ 279.153636][ T7806] ? setup_bdev_super+0x4c1/0x5b0
[ 279.153663][ T7806] get_tree_bdev_flags+0x40e/0x4d0
[ 279.153686][ T7806] ? __pfx_gfs2_fill_super+0x10/0x10
[ 279.153710][ T7806] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 279.153730][ T7806] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 279.153771][ T7806] gfs2_get_tree+0x51/0x1e0
[ 279.153798][ T7806] vfs_get_tree+0x92/0x2a0
[ 279.153819][ T7806] do_new_mount+0x31a/0xcf0
[ 279.153835][ T7806] ? apparmor_capable+0x137/0x1a0
[ 279.153853][ T7806] ? __pfx_do_new_mount+0x10/0x10
[ 279.153868][ T7806] ? ns_capable+0x8a/0xf0
[ 279.153887][ T7806] ? user_path_at+0xd4/0x160
[ 279.153909][ T7806] ? user_path_at+0xd4/0x160
[ 279.153927][ T7806] __se_sys_mount+0x313/0x410
[ 279.153948][ T7806] ? __pfx___se_sys_mount+0x10/0x10
[ 279.153969][ T7806] ? __x64_sys_mount+0x20/0xc0
[ 279.153987][ T7806] do_syscall_64+0xec/0xf80
[ 279.154005][ T7806] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 279.154019][ T7806] ? trace_irq_disable+0x37/0x100
[ 279.154032][ T7806] ? clear_bhb_loop+0x40/0x90
[ 279.154050][ T7806] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 279.154064][ T7806] RIP: 0033:0x7f1860b9038a
[ 279.154080][ T7806] 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
[ 279.154094][ T7806] RSP: 002b:00007f18601fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 279.154111][ T7806] RAX: ffffffffffffffda RBX: 00007f18601fdef0 RCX: 00007f1860b9038a
[ 279.154121][ T7806] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f18601fdeb0
[ 279.154131][ T7806] RBP: 000020000001f680 R08: 00007f18601fdef0 R09: 0000000000000084
[ 279.154141][ T7806] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 279.154151][ T7806] R13: 00007f18601fdeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 279.154176][ T7806]
[ 279.485551][ T7812] loop4: detected capacity change from 0 to 32768
[ 279.518498][ T7812] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 279.526275][ T7812] CPU: 1 UID: 0 PID: 7812 Comm: syz.4.252 Not tainted syzkaller #0 PREEMPT(full)
[ 279.526299][ T7812] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 279.526311][ T7812] Call Trace:
[ 279.526318][ T7812]
[ 279.526326][ T7812] dump_stack_lvl+0xe8/0x150
[ 279.526369][ T7812] sysfs_create_dir_ns+0x259/0x280
[ 279.526399][ T7812] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 279.526426][ T7812] ? do_raw_spin_unlock+0xf6/0x210
[ 279.526449][ T7812] kobject_add_internal+0x6ab/0xcc0
[ 279.526480][ T7812] kobject_init_and_add+0x125/0x190
[ 279.526508][ T7812] ? __pfx_kobject_init_and_add+0x10/0x10
[ 279.526532][ T7812] ? __raw_spin_lock_init+0x45/0x100
[ 279.526551][ T7812] ? __init_swait_queue_head+0xa9/0x150
[ 279.526581][ T7812] gfs2_sys_fs_add+0x234/0x450
[ 279.526601][ T7812] ? is_dynamic_key+0x1ac/0x1c0
[ 279.526621][ T7812] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 279.526650][ T7812] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 279.526689][ T7812] gfs2_fill_super+0x1388/0x21b0
[ 279.526729][ T7812] ? __pfx_gfs2_fill_super+0x10/0x10
[ 279.526760][ T7812] ? sb_set_blocksize+0x155/0x240
[ 279.526784][ T7812] ? setup_bdev_super+0x4c1/0x5b0
[ 279.526812][ T7812] get_tree_bdev_flags+0x40e/0x4d0
[ 279.526835][ T7812] ? __pfx_gfs2_fill_super+0x10/0x10
[ 279.526861][ T7812] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 279.526882][ T7812] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 279.526914][ T7812] gfs2_get_tree+0x51/0x1e0
[ 279.526943][ T7812] vfs_get_tree+0x92/0x2a0
[ 279.526968][ T7812] do_new_mount+0x31a/0xcf0
[ 279.526985][ T7812] ? apparmor_capable+0x137/0x1a0
[ 279.527007][ T7812] ? __pfx_do_new_mount+0x10/0x10
[ 279.527026][ T7812] ? ns_capable+0x8a/0xf0
[ 279.527050][ T7812] ? user_path_at+0xd4/0x160
[ 279.527075][ T7812] ? user_path_at+0xd4/0x160
[ 279.527098][ T7812] __se_sys_mount+0x313/0x410
[ 279.527123][ T7812] ? __pfx___se_sys_mount+0x10/0x10
[ 279.527148][ T7812] ? __x64_sys_mount+0x20/0xc0
[ 279.527169][ T7812] do_syscall_64+0xec/0xf80
[ 279.527189][ T7812] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 279.527206][ T7812] ? trace_irq_disable+0x37/0x100
[ 279.527221][ T7812] ? clear_bhb_loop+0x40/0x90
[ 279.527243][ T7812] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 279.527260][ T7812] RIP: 0033:0x7fd998d9038a
[ 279.527278][ T7812] 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
[ 279.527294][ T7812] RSP: 002b:00007fd999b60e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 279.527313][ T7812] RAX: ffffffffffffffda RBX: 00007fd999b60ef0 RCX: 00007fd998d9038a
[ 279.527326][ T7812] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd999b60eb0
[ 279.527339][ T7812] RBP: 000020000001f680 R08: 00007fd999b60ef0 R09: 0000000000000084
[ 279.527351][ T7812] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 279.527369][ T7812] R13: 00007fd999b60eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 279.527398][ T7812]
[ 279.527422][ T7812] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 279.858785][ T7806] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 279.893374][ T7812] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 279.922867][ T7806] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 280.073677][ T31] INFO: task kworker/0:3:1226 blocked for more than 143 seconds.
[ 280.093300][ T31] Not tainted syzkaller #0
[ 280.102519][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
2026/01/17 18:07:49 executed programs: 247
[ 280.153295][ T31] task:kworker/0:3 state:D stack:24696 pid:1226 tgid:1226 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 280.203379][ T31] Workqueue: gfs2_recovery gfs2_recover_func
[ 280.232239][ T31] Call Trace:
[ 280.252505][ T31]
[ 280.262645][ T31] __schedule+0x14db/0x5030
[ 280.272769][ T31] ? lockdep_unlock+0x5e/0xe0
[ 280.281991][ T7810] loop2: detected capacity change from 0 to 32768
[ 280.293328][ T31] ? __lock_acquire+0x146f/0x2cf0
[ 280.298491][ T31] ? __pfx___schedule+0x10/0x10
[ 280.324450][ T31] ? schedule+0x91/0x360
[ 280.334543][ T31] schedule+0x165/0x360
[ 280.338865][ T31] io_schedule+0x80/0xd0
[ 280.343129][ T31] folio_wait_bit_common+0x6b0/0xb80
[ 280.356924][ T31] ? __pfx_folio_wait_bit_common+0x10/0x10
[ 280.357126][ T7810] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 280.370559][ T31] ? __submit_bio+0x277/0x550
[ 280.375698][ T31] ? __pfx_wake_page_function+0x10/0x10
[ 280.412108][ T7810] CPU: 1 UID: 0 PID: 7810 Comm: syz.2.251 Not tainted syzkaller #0 PREEMPT(full)
[ 280.412133][ T7810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 280.412144][ T7810] Call Trace:
[ 280.412152][ T7810]
[ 280.412159][ T7810] dump_stack_lvl+0xe8/0x150
[ 280.412188][ T7810] sysfs_create_dir_ns+0x259/0x280
[ 280.412217][ T7810] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 280.412244][ T7810] ? do_raw_spin_unlock+0xf6/0x210
[ 280.412266][ T7810] kobject_add_internal+0x6ab/0xcc0
[ 280.412298][ T7810] kobject_init_and_add+0x125/0x190
[ 280.412330][ T7810] ? __pfx_kobject_init_and_add+0x10/0x10
[ 280.412354][ T7810] ? __raw_spin_lock_init+0x45/0x100
[ 280.412373][ T7810] ? __init_swait_queue_head+0xa9/0x150
[ 280.412403][ T7810] gfs2_sys_fs_add+0x234/0x450
[ 280.412424][ T7810] ? is_dynamic_key+0x1ac/0x1c0
[ 280.412446][ T7810] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 280.412473][ T7810] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 280.412512][ T7810] gfs2_fill_super+0x1388/0x21b0
[ 280.412552][ T7810] ? __pfx_gfs2_fill_super+0x10/0x10
[ 280.412582][ T7810] ? sb_set_blocksize+0x155/0x240
[ 280.412612][ T7810] ? setup_bdev_super+0x4c1/0x5b0
[ 280.412638][ T7810] get_tree_bdev_flags+0x40e/0x4d0
[ 280.412661][ T7810] ? __pfx_gfs2_fill_super+0x10/0x10
[ 280.412687][ T7810] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 280.412708][ T7810] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 280.412739][ T7810] gfs2_get_tree+0x51/0x1e0
[ 280.412764][ T7810] vfs_get_tree+0x92/0x2a0
[ 280.412786][ T7810] do_new_mount+0x31a/0xcf0
[ 280.412802][ T7810] ? apparmor_capable+0x137/0x1a0
[ 280.412822][ T7810] ? __pfx_do_new_mount+0x10/0x10
[ 280.412839][ T7810] ? ns_capable+0x8a/0xf0
[ 280.412859][ T7810] ? user_path_at+0xd4/0x160
[ 280.412883][ T7810] ? user_path_at+0xd4/0x160
[ 280.412904][ T7810] __se_sys_mount+0x313/0x410
[ 280.412929][ T7810] ? __pfx___se_sys_mount+0x10/0x10
[ 280.412953][ T7810] ? __x64_sys_mount+0x20/0xc0
[ 280.412970][ T7810] do_syscall_64+0xec/0xf80
[ 280.412989][ T7810] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 280.413005][ T7810] ? trace_irq_disable+0x37/0x100
[ 280.413021][ T7810] ? clear_bhb_loop+0x40/0x90
[ 280.413042][ T7810] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 280.413060][ T7810] RIP: 0033:0x7f3e03d9038a
[ 280.413078][ T7810] 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
[ 280.413094][ T7810] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 280.413113][ T7810] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 280.413126][ T7810] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 280.413137][ T7810] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 280.413147][ T7810] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 280.413158][ T7810] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 280.413185][ T7810]
[ 280.413209][ T7810] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 280.482758][ T31] ? __get_log_header+0x297/0x620
[ 280.734721][ T7810] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 280.783368][ T31] ? __filemap_get_folio_mpol+0x6b0/0xb00
[ 280.789355][ T31] gfs2_jhead_process_page+0x171/0x650
[ 280.795158][ T31] ? __pfx_gfs2_jhead_process_page+0x10/0x10
[ 280.801374][ T31] gfs2_find_jhead+0xbd2/0xd30
[ 280.806330][ T31] gfs2_recover_func+0x5f5/0x1c90
[ 280.811524][ T31] ? unwind_next_frame+0xa5/0x23d0
[ 280.816791][ T31] ? ret_from_fork_asm+0x1a/0x30
[ 280.823506][ T31] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 280.829893][ T31] ? arch_stack_walk+0x11c/0x150
[ 280.835234][ T31] ? ret_from_fork_asm+0x1a/0x30
[ 280.840345][ T31] ? stack_trace_save+0x9c/0xe0
[ 280.845363][ T31] ? __pfx_gfs2_recover_func+0x10/0x10
[ 280.850855][ T31] ? check_path+0x21/0x40
[ 280.855281][ T31] ? add_lock_to_list+0xc7/0x100
[ 280.860317][ T31] ? lockdep_unlock+0x5e/0xe0
[ 280.865192][ T31] ? __lock_acquire+0x146f/0x2cf0
[ 280.870280][ T31] ? process_one_work+0x868/0x15a0
[ 280.876488][ T31] ? process_one_work+0x868/0x15a0
[ 280.881824][ T31] process_one_work+0x93a/0x15a0
[ 280.887008][ T31] ? __pfx_process_one_work+0x10/0x10
[ 280.892590][ T31] ? do_raw_spin_lock+0x121/0x290
[ 280.897965][ T31] ? assign_work+0x3c7/0x5b0
[ 280.902608][ T31] worker_thread+0x9b0/0xee0
[ 280.943467][ T31] kthread+0x389/0x480
[ 280.947597][ T31] ? __pfx_worker_thread+0x10/0x10
[ 280.952725][ T31] ? __pfx_kthread+0x10/0x10
[ 281.023341][ T31] ret_from_fork+0x510/0xa50
[ 281.029490][ T31] ? __pfx_ret_from_fork+0x10/0x10
[ 281.043324][ T31] ? __switch_to+0xc9e/0x1480
[ 281.048132][ T31] ? __pfx_kthread+0x10/0x10
[ 281.052746][ T31] ret_from_fork_asm+0x1a/0x30
[ 281.083326][ T31]
[ 281.103426][ T31] INFO: task syz.0.17:6512 blocked for more than 144 seconds.
[ 281.110943][ T31] Not tainted syzkaller #0
[ 281.153311][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 281.160496][ T7816] loop5: detected capacity change from 0 to 32768
[ 281.183305][ T31] task:syz.0.17 state:D stack:24600 pid:6512 tgid:6511 ppid:6351 task_flags:0x400140 flags:0x00080002
[ 281.223946][ T7816] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 281.233326][ T31] Call Trace:
[ 281.236635][ T31]
[ 281.239573][ T31] __schedule+0x14db/0x5030
[ 281.263126][ T31] ? __pfx___schedule+0x10/0x10
[ 281.268253][ T31] ? schedule+0x91/0x360
[ 281.272527][ T31] schedule+0x165/0x360
[ 281.284705][ T31] bit_wait+0x11/0xd0
[ 281.293431][ T31] __wait_on_bit+0xb9/0x310
[ 281.295997][ T7816] CPU: 1 UID: 0 PID: 7816 Comm: syz.5.253 Not tainted syzkaller #0 PREEMPT(full)
[ 281.296021][ T7816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 281.296033][ T7816] Call Trace:
[ 281.296040][ T7816]
[ 281.296048][ T7816] dump_stack_lvl+0xe8/0x150
[ 281.296074][ T7816] sysfs_create_dir_ns+0x259/0x280
[ 281.296102][ T7816] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 281.296128][ T7816] ? do_raw_spin_unlock+0xf6/0x210
[ 281.296149][ T7816] kobject_add_internal+0x6ab/0xcc0
[ 281.296180][ T7816] kobject_init_and_add+0x125/0x190
[ 281.296207][ T7816] ? __pfx_kobject_init_and_add+0x10/0x10
[ 281.296230][ T7816] ? __raw_spin_lock_init+0x45/0x100
[ 281.296248][ T7816] ? __init_swait_queue_head+0xa9/0x150
[ 281.296277][ T7816] gfs2_sys_fs_add+0x234/0x450
[ 281.296297][ T7816] ? is_dynamic_key+0x1ac/0x1c0
[ 281.296327][ T7816] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 281.296355][ T7816] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 281.296397][ T7816] gfs2_fill_super+0x1388/0x21b0
[ 281.296436][ T7816] ? __pfx_gfs2_fill_super+0x10/0x10
[ 281.296464][ T7816] ? sb_set_blocksize+0x155/0x240
[ 281.296487][ T7816] ? setup_bdev_super+0x4c1/0x5b0
[ 281.296512][ T7816] get_tree_bdev_flags+0x40e/0x4d0
[ 281.296533][ T7816] ? __pfx_gfs2_fill_super+0x10/0x10
[ 281.296557][ T7816] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 281.296577][ T7816] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 281.296608][ T7816] gfs2_get_tree+0x51/0x1e0
[ 281.296637][ T7816] vfs_get_tree+0x92/0x2a0
[ 281.296660][ T7816] do_new_mount+0x31a/0xcf0
[ 281.296676][ T7816] ? apparmor_capable+0x137/0x1a0
[ 281.296698][ T7816] ? __pfx_do_new_mount+0x10/0x10
[ 281.296716][ T7816] ? ns_capable+0x8a/0xf0
[ 281.296739][ T7816] ? user_path_at+0xd4/0x160
[ 281.296763][ T7816] ? user_path_at+0xd4/0x160
[ 281.296784][ T7816] __se_sys_mount+0x313/0x410
[ 281.296808][ T7816] ? __pfx___se_sys_mount+0x10/0x10
[ 281.296832][ T7816] ? __x64_sys_mount+0x20/0xc0
[ 281.296853][ T7816] do_syscall_64+0xec/0xf80
[ 281.296871][ T7816] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 281.296887][ T7816] ? trace_irq_disable+0x37/0x100
[ 281.296902][ T7816] ? clear_bhb_loop+0x40/0x90
[ 281.296923][ T7816] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 281.296939][ T7816] RIP: 0033:0x7fa6a7d9038a
[ 281.296955][ T7816] 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
[ 281.296970][ T7816] RSP: 002b:00007fa6a8cdbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 281.296988][ T7816] RAX: ffffffffffffffda RBX: 00007fa6a8cdbef0 RCX: 00007fa6a7d9038a
[ 281.297001][ T7816] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa6a8cdbeb0
[ 281.297013][ T7816] RBP: 000020000001f680 R08: 00007fa6a8cdbef0 R09: 0000000000000084
[ 281.297024][ T7816] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 281.297035][ T7816] R13: 00007fa6a8cdbeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 281.297063][ T7816]
[ 281.297118][ T7816] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 281.298076][ T31] ? irqentry_exit+0x5e8/0x670
[ 281.423352][ T7816] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 281.429698][ T31] ? __pfx_bit_wait+0x10/0x10
[ 281.842649][ T7822] loop1: detected capacity change from 0 to 32768
[ 281.880946][ T31] ? __pfx_bit_wait+0x10/0x10
[ 281.885795][ T31] out_of_line_wait_on_bit+0x123/0x170
[ 281.891545][ T7822] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 281.901501][ T7822] CPU: 0 UID: 0 PID: 7822 Comm: syz.1.254 Not tainted syzkaller #0 PREEMPT(full)
[ 281.901524][ T7822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 281.901536][ T7822] Call Trace:
[ 281.901543][ T7822]
[ 281.901552][ T7822] dump_stack_lvl+0xe8/0x150
[ 281.901579][ T7822] sysfs_create_dir_ns+0x259/0x280
[ 281.901608][ T7822] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 281.901635][ T7822] ? do_raw_spin_unlock+0xf6/0x210
[ 281.901656][ T7822] kobject_add_internal+0x6ab/0xcc0
[ 281.901685][ T7822] kobject_init_and_add+0x125/0x190
[ 281.901709][ T7822] ? __pfx_kobject_init_and_add+0x10/0x10
[ 281.901729][ T7822] ? __raw_spin_lock_init+0x45/0x100
[ 281.901744][ T7822] ? __init_swait_queue_head+0xa9/0x150
[ 281.901771][ T7822] gfs2_sys_fs_add+0x234/0x450
[ 281.901788][ T7822] ? is_dynamic_key+0x1ac/0x1c0
[ 281.901808][ T7822] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 281.901832][ T7822] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 281.901868][ T7822] gfs2_fill_super+0x1388/0x21b0
[ 281.901908][ T7822] ? __pfx_gfs2_fill_super+0x10/0x10
[ 281.901937][ T7822] ? sb_set_blocksize+0x155/0x240
[ 281.901960][ T7822] ? setup_bdev_super+0x4c1/0x5b0
[ 281.901985][ T7822] get_tree_bdev_flags+0x40e/0x4d0
[ 281.902006][ T7822] ? __pfx_gfs2_fill_super+0x10/0x10
[ 281.902031][ T7822] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 281.902050][ T7822] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 281.902081][ T7822] gfs2_get_tree+0x51/0x1e0
[ 281.902108][ T7822] vfs_get_tree+0x92/0x2a0
[ 281.902133][ T7822] do_new_mount+0x31a/0xcf0
[ 281.902151][ T7822] ? apparmor_capable+0x137/0x1a0
[ 281.902174][ T7822] ? __pfx_do_new_mount+0x10/0x10
[ 281.902191][ T7822] ? ns_capable+0x8a/0xf0
[ 281.902213][ T7822] ? user_path_at+0xd4/0x160
[ 281.902238][ T7822] ? user_path_at+0xd4/0x160
[ 281.902259][ T7822] __se_sys_mount+0x313/0x410
[ 281.902284][ T7822] ? __pfx___se_sys_mount+0x10/0x10
[ 281.902308][ T7822] ? __x64_sys_mount+0x20/0xc0
[ 281.902329][ T7822] do_syscall_64+0xec/0xf80
[ 281.902349][ T7822] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 281.902365][ T7822] ? trace_irq_disable+0x37/0x100
[ 281.902381][ T7822] ? clear_bhb_loop+0x40/0x90
[ 281.902401][ T7822] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 281.902417][ T7822] RIP: 0033:0x7f1f4f99038a
[ 281.902441][ T7822] 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
[ 281.902457][ T7822] RSP: 002b:00007f1f5074ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 281.902477][ T7822] RAX: ffffffffffffffda RBX: 00007f1f5074cef0 RCX: 00007f1f4f99038a
[ 281.902489][ T7822] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f1f5074ceb0
[ 281.902500][ T7822] RBP: 000020000001f680 R08: 00007f1f5074cef0 R09: 0000000000000084
[ 281.902511][ T7822] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 281.902522][ T7822] R13: 00007f1f5074ceb0 R14: 000000000001f790 R15: 00002000000001c0
[ 281.902550][ T7822]
[ 281.902573][ T7822] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 282.188737][ T31] ? __pfx_out_of_line_wait_on_bit+0x10/0x10
[ 282.263324][ T7822] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 282.303625][ T31] ? __pfx_wake_bit_function+0x10/0x10
[ 282.322812][ T31] gfs2_recover_journal+0xda/0x140
[ 282.335193][ T31] init_journal+0x1977/0x2170
[ 282.353303][ T31] ? init_inodes+0xdb/0x320
[ 282.373761][ T31] ? __pfx_init_journal+0x10/0x10
[ 282.389123][ T31] ? snprintf+0xda/0x120
[ 282.407666][ T31] ? init_inodes+0xdb/0x320
[ 282.421248][ T31] ? __pfx_snprintf+0x10/0x10
[ 282.436001][ T31] ? gfs2_glock_nq_num+0x13d/0x170
[ 282.439127][ T7830] loop2: detected capacity change from 0 to 32768
[ 282.457331][ T31] init_inodes+0xdb/0x320
[ 282.482317][ T31] gfs2_fill_super+0x1a08/0x21b0
[ 282.513527][ T7830] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 282.525808][ T31] ? __pfx_gfs2_fill_super+0x10/0x10
[ 282.536898][ T7826] loop4: detected capacity change from 0 to 32768
[ 282.543455][ T7830] CPU: 0 UID: 0 PID: 7830 Comm: syz.2.257 Not tainted syzkaller #0 PREEMPT(full)
[ 282.543480][ T7830] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 282.543490][ T7830] Call Trace:
[ 282.543497][ T7830]
[ 282.543504][ T7830] dump_stack_lvl+0xe8/0x150
[ 282.543531][ T7830] sysfs_create_dir_ns+0x259/0x280
[ 282.543560][ T7830] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 282.543591][ T7830] ? do_raw_spin_unlock+0xf6/0x210
[ 282.543613][ T7830] kobject_add_internal+0x6ab/0xcc0
[ 282.543644][ T7830] kobject_init_and_add+0x125/0x190
[ 282.543670][ T7830] ? __pfx_kobject_init_and_add+0x10/0x10
[ 282.543693][ T7830] ? __raw_spin_lock_init+0x45/0x100
[ 282.543711][ T7830] ? __init_swait_queue_head+0xa9/0x150
[ 282.543741][ T7830] gfs2_sys_fs_add+0x234/0x450
[ 282.543761][ T7830] ? is_dynamic_key+0x1ac/0x1c0
[ 282.543781][ T7830] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 282.543809][ T7830] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 282.543846][ T7830] gfs2_fill_super+0x1388/0x21b0
[ 282.543885][ T7830] ? __pfx_gfs2_fill_super+0x10/0x10
[ 282.543914][ T7830] ? sb_set_blocksize+0x155/0x240
[ 282.543937][ T7830] ? setup_bdev_super+0x4c1/0x5b0
[ 282.543962][ T7830] get_tree_bdev_flags+0x40e/0x4d0
[ 282.543984][ T7830] ? __pfx_gfs2_fill_super+0x10/0x10
[ 282.544009][ T7830] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 282.544029][ T7830] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 282.544060][ T7830] gfs2_get_tree+0x51/0x1e0
[ 282.544087][ T7830] vfs_get_tree+0x92/0x2a0
[ 282.544111][ T7830] do_new_mount+0x31a/0xcf0
[ 282.544128][ T7830] ? apparmor_capable+0x137/0x1a0
[ 282.544161][ T7830] ? __pfx_do_new_mount+0x10/0x10
[ 282.544178][ T7830] ? ns_capable+0x8a/0xf0
[ 282.544201][ T7830] ? user_path_at+0xd4/0x160
[ 282.544225][ T7830] ? user_path_at+0xd4/0x160
[ 282.544247][ T7830] __se_sys_mount+0x313/0x410
[ 282.544271][ T7830] ? __pfx___se_sys_mount+0x10/0x10
[ 282.544294][ T7830] ? __x64_sys_mount+0x20/0xc0
[ 282.544315][ T7830] do_syscall_64+0xec/0xf80
[ 282.544335][ T7830] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 282.544351][ T7830] ? trace_irq_disable+0x37/0x100
[ 282.544366][ T7830] ? clear_bhb_loop+0x40/0x90
[ 282.544386][ T7830] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 282.544470][ T7830] RIP: 0033:0x7f3e03d9038a
[ 282.544488][ T7830] 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
[ 282.544503][ T7830] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 282.544523][ T7830] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 282.544536][ T7830] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 282.544548][ T7830] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 282.544558][ T7830] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 282.544569][ T7830] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 282.544598][ T7830]
[ 282.544634][ T7830] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 282.577147][ T31] ? init_locking+0xb8/0x210
[ 282.680249][ T7826] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 282.688347][ T7830] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 282.690207][ T7826] CPU: 0 UID: 0 PID: 7826 Comm: syz.4.255 Not tainted syzkaller #0 PREEMPT(full)
[ 282.690229][ T7826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 282.690239][ T7826] Call Trace:
[ 282.690248][ T7826]
[ 282.690256][ T7826] dump_stack_lvl+0xe8/0x150
[ 282.690283][ T7826] sysfs_create_dir_ns+0x259/0x280
[ 282.690311][ T7826] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 282.690337][ T7826] ? do_raw_spin_unlock+0xf6/0x210
[ 282.690358][ T7826] kobject_add_internal+0x6ab/0xcc0
[ 282.690390][ T7826] kobject_init_and_add+0x125/0x190
[ 282.690417][ T7826] ? __pfx_kobject_init_and_add+0x10/0x10
[ 282.690440][ T7826] ? __raw_spin_lock_init+0x45/0x100
[ 282.690465][ T7826] ? __init_swait_queue_head+0xa9/0x150
[ 282.690496][ T7826] gfs2_sys_fs_add+0x234/0x450
[ 282.690516][ T7826] ? is_dynamic_key+0x1ac/0x1c0
[ 282.690538][ T7826] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 282.690566][ T7826] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 282.690604][ T7826] gfs2_fill_super+0x1388/0x21b0
[ 282.690643][ T7826] ? __pfx_gfs2_fill_super+0x10/0x10
[ 282.690671][ T7826] ? sb_set_blocksize+0x155/0x240
[ 282.690695][ T7826] ? setup_bdev_super+0x4c1/0x5b0
[ 282.690727][ T7826] get_tree_bdev_flags+0x40e/0x4d0
[ 282.690750][ T7826] ? __pfx_gfs2_fill_super+0x10/0x10
[ 282.690775][ T7826] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 282.690794][ T7826] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 282.690825][ T7826] gfs2_get_tree+0x51/0x1e0
[ 282.690852][ T7826] vfs_get_tree+0x92/0x2a0
[ 282.690877][ T7826] do_new_mount+0x31a/0xcf0
[ 282.690893][ T7826] ? apparmor_capable+0x137/0x1a0
[ 282.690914][ T7826] ? __pfx_do_new_mount+0x10/0x10
[ 282.690932][ T7826] ? ns_capable+0x8a/0xf0
[ 282.690955][ T7826] ? user_path_at+0xd4/0x160
[ 282.690980][ T7826] ? user_path_at+0xd4/0x160
[ 282.691001][ T7826] __se_sys_mount+0x313/0x410
[ 282.691025][ T7826] ? __pfx___se_sys_mount+0x10/0x10
[ 282.691050][ T7826] ? __x64_sys_mount+0x20/0xc0
[ 282.691070][ T7826] do_syscall_64+0xec/0xf80
[ 282.691089][ T7826] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 282.691106][ T7826] ? trace_irq_disable+0x37/0x100
[ 282.691127][ T7826] ? clear_bhb_loop+0x40/0x90
[ 282.691148][ T7826] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 282.691165][ T7826] RIP: 0033:0x7fd998d9038a
[ 282.691182][ T7826] 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
[ 282.691197][ T7826] RSP: 002b:00007fd999b60e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 282.691214][ T7826] RAX: ffffffffffffffda RBX: 00007fd999b60ef0 RCX: 00007fd998d9038a
[ 282.691227][ T7826] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd999b60eb0
[ 282.691239][ T7826] RBP: 000020000001f680 R08: 00007fd999b60ef0 R09: 0000000000000084
[ 282.691250][ T7826] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 282.691261][ T7826] R13: 00007fd999b60eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 282.691291][ T7826]
[ 282.691319][ T7826] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 282.918230][ T7828] loop3: detected capacity change from 0 to 32768
[ 283.023839][ T7826] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 283.032164][ T31] ? sb_set_blocksize+0x155/0x240
[ 283.219679][ T7828] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 283.221229][ T31] ? setup_bdev_super+0x4c1/0x5b0
[ 283.232275][ T31] get_tree_bdev_flags+0x40e/0x4d0
[ 283.235340][ T7828] CPU: 0 UID: 0 PID: 7828 Comm: syz.3.256 Not tainted syzkaller #0 PREEMPT(full)
[ 283.235363][ T7828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 283.235374][ T7828] Call Trace:
[ 283.235382][ T7828]
[ 283.235389][ T7828] dump_stack_lvl+0xe8/0x150
[ 283.235416][ T7828] sysfs_create_dir_ns+0x259/0x280
[ 283.235444][ T7828] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 283.235470][ T7828] ? do_raw_spin_unlock+0xf6/0x210
[ 283.235492][ T7828] kobject_add_internal+0x6ab/0xcc0
[ 283.235524][ T7828] kobject_init_and_add+0x125/0x190
[ 283.235550][ T7828] ? __pfx_kobject_init_and_add+0x10/0x10
[ 283.235573][ T7828] ? __raw_spin_lock_init+0x45/0x100
[ 283.235592][ T7828] ? __init_swait_queue_head+0xa9/0x150
[ 283.235621][ T7828] gfs2_sys_fs_add+0x234/0x450
[ 283.235641][ T7828] ? is_dynamic_key+0x1ac/0x1c0
[ 283.235662][ T7828] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 283.235690][ T7828] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 283.235727][ T7828] gfs2_fill_super+0x1388/0x21b0
[ 283.235767][ T7828] ? __pfx_gfs2_fill_super+0x10/0x10
[ 283.235796][ T7828] ? sb_set_blocksize+0x155/0x240
[ 283.235819][ T7828] ? setup_bdev_super+0x4c1/0x5b0
[ 283.235844][ T7828] get_tree_bdev_flags+0x40e/0x4d0
[ 283.235866][ T7828] ? __pfx_gfs2_fill_super+0x10/0x10
[ 283.235890][ T7828] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 283.235910][ T7828] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 283.235941][ T7828] gfs2_get_tree+0x51/0x1e0
[ 283.235968][ T7828] vfs_get_tree+0x92/0x2a0
[ 283.235992][ T7828] do_new_mount+0x31a/0xcf0
[ 283.236009][ T7828] ? apparmor_capable+0x137/0x1a0
[ 283.236030][ T7828] ? __pfx_do_new_mount+0x10/0x10
[ 283.236048][ T7828] ? ns_capable+0x8a/0xf0
[ 283.236071][ T7828] ? user_path_at+0xd4/0x160
[ 283.236095][ T7828] ? user_path_at+0xd4/0x160
[ 283.236116][ T7828] __se_sys_mount+0x313/0x410
[ 283.236140][ T7828] ? __pfx___se_sys_mount+0x10/0x10
[ 283.236164][ T7828] ? __x64_sys_mount+0x20/0xc0
[ 283.236184][ T7828] do_syscall_64+0xec/0xf80
[ 283.236203][ T7828] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 283.236219][ T7828] ? trace_irq_disable+0x37/0x100
[ 283.236235][ T7828] ? clear_bhb_loop+0x40/0x90
[ 283.236255][ T7828] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 283.236272][ T7828] RIP: 0033:0x7f1860b9038a
[ 283.236288][ T7828] 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
[ 283.236303][ T7828] RSP: 002b:00007f18601fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 283.236321][ T7828] RAX: ffffffffffffffda RBX: 00007f18601fdef0 RCX: 00007f1860b9038a
[ 283.236340][ T7828] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f18601fdeb0
[ 283.236351][ T7828] RBP: 000020000001f680 R08: 00007f18601fdef0 R09: 0000000000000084
[ 283.236362][ T7828] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 283.236373][ T7828] R13: 00007f18601fdeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 283.236401][ T7828]
[ 283.236423][ T7828] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 283.237517][ T31] ? __pfx_gfs2_fill_super+0x10/0x10
[ 283.385015][ T7828] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 283.386914][ T31] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 283.933322][ T31] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 283.963300][ T31] gfs2_get_tree+0x51/0x1e0
[ 283.988165][ T31] vfs_get_tree+0x92/0x2a0
[ 284.023353][ T31] do_new_mount+0x31a/0xcf0
[ 284.033577][ T31] ? apparmor_capable+0x137/0x1a0
[ 284.063320][ T31] ? __pfx_do_new_mount+0x10/0x10
[ 284.068399][ T31] ? ns_capable+0x8a/0xf0
[ 284.075747][ T7836] loop5: detected capacity change from 0 to 32768
[ 284.118720][ T31] ? user_path_at+0xd4/0x160
[ 284.133395][ T31] ? user_path_at+0xd4/0x160
[ 284.143584][ T7836] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 284.171397][ T31] __se_sys_mount+0x313/0x410
[ 284.176230][ T31] ? __pfx___se_sys_mount+0x10/0x10
[ 284.191802][ T31] ? __x64_sys_mount+0x20/0xc0
[ 284.193380][ T7836] CPU: 0 UID: 0 PID: 7836 Comm: syz.5.258 Not tainted syzkaller #0 PREEMPT(full)
[ 284.193401][ T7836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 284.193412][ T7836] Call Trace:
[ 284.193421][ T7836]
[ 284.193428][ T7836] dump_stack_lvl+0xe8/0x150
[ 284.193453][ T7836] sysfs_create_dir_ns+0x259/0x280
[ 284.193481][ T7836] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 284.193508][ T7836] ? do_raw_spin_unlock+0xf6/0x210
[ 284.193529][ T7836] kobject_add_internal+0x6ab/0xcc0
[ 284.193560][ T7836] kobject_init_and_add+0x125/0x190
[ 284.193587][ T7836] ? __pfx_kobject_init_and_add+0x10/0x10
[ 284.193610][ T7836] ? __raw_spin_lock_init+0x45/0x100
[ 284.193629][ T7836] ? __init_swait_queue_head+0xa9/0x150
[ 284.193657][ T7836] gfs2_sys_fs_add+0x234/0x450
[ 284.193677][ T7836] ? is_dynamic_key+0x1ac/0x1c0
[ 284.193698][ T7836] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 284.193726][ T7836] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 284.193762][ T7836] gfs2_fill_super+0x1388/0x21b0
[ 284.193803][ T7836] ? __pfx_gfs2_fill_super+0x10/0x10
[ 284.193831][ T7836] ? sb_set_blocksize+0x155/0x240
[ 284.193863][ T7836] ? setup_bdev_super+0x4c1/0x5b0
[ 284.193889][ T7836] get_tree_bdev_flags+0x40e/0x4d0
[ 284.193911][ T7836] ? __pfx_gfs2_fill_super+0x10/0x10
[ 284.193936][ T7836] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 284.193960][ T7836] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 284.193992][ T7836] gfs2_get_tree+0x51/0x1e0
[ 284.194020][ T7836] vfs_get_tree+0x92/0x2a0
[ 284.194049][ T7836] do_new_mount+0x31a/0xcf0
[ 284.194066][ T7836] ? apparmor_capable+0x137/0x1a0
[ 284.194088][ T7836] ? __pfx_do_new_mount+0x10/0x10
[ 284.194106][ T7836] ? ns_capable+0x8a/0xf0
[ 284.194129][ T7836] ? user_path_at+0xd4/0x160
[ 284.194154][ T7836] ? user_path_at+0xd4/0x160
[ 284.194177][ T7836] __se_sys_mount+0x313/0x410
[ 284.194202][ T7836] ? __pfx___se_sys_mount+0x10/0x10
[ 284.194227][ T7836] ? __x64_sys_mount+0x20/0xc0
[ 284.194248][ T7836] do_syscall_64+0xec/0xf80
[ 284.194268][ T7836] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 284.194284][ T7836] ? trace_irq_disable+0x37/0x100
[ 284.194299][ T7836] ? clear_bhb_loop+0x40/0x90
[ 284.194321][ T7836] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 284.194338][ T7836] RIP: 0033:0x7fa6a7d9038a
[ 284.194355][ T7836] 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
[ 284.194371][ T7836] RSP: 002b:00007fa6a8cdbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 284.194390][ T7836] RAX: ffffffffffffffda RBX: 00007fa6a8cdbef0 RCX: 00007fa6a7d9038a
[ 284.194403][ T7836] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa6a8cdbeb0
[ 284.194415][ T7836] RBP: 000020000001f680 R08: 00007fa6a8cdbef0 R09: 0000000000000084
[ 284.194427][ T7836] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 284.194439][ T7836] R13: 00007fa6a8cdbeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 284.194467][ T7836]
[ 284.194491][ T7836] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 284.196703][ T31] do_syscall_64+0xec/0xf80
[ 284.373310][ T7836] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 284.554311][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 284.560433][ T31] ? trace_irq_disable+0x37/0x100
[ 284.593316][ T31] ? clear_bhb_loop+0x40/0x90
[ 284.608374][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 284.633733][ T31] RIP: 0033:0x7fe7fcf9038a
[ 284.638209][ T31] RSP: 002b:00007fe7fddbae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 284.684273][ T31] RAX: ffffffffffffffda RBX: 00007fe7fddbaef0 RCX: 00007fe7fcf9038a
[ 284.716063][ T31] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fe7fddbaeb0
[ 284.745783][ T31] RBP: 000020000001f680 R08: 00007fe7fddbaef0 R09: 0000000000000084
[ 284.783362][ T31] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 284.816780][ T31] R13: 00007fe7fddbaeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 284.838526][ T7842] loop1: detected capacity change from 0 to 32768
[ 284.853362][ T31]
[ 284.863398][ T31]
[ 284.863398][ T31] Showing all locks held in the system:
[ 284.883294][ T31] 1 lock held by ksoftirqd/1/23:
[ 284.888271][ T31] #0: ffff8880b873abe0 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x31/0x150
[ 284.963604][ T31] 1 lock held by khungtaskd/31:
[ 284.968586][ T31] #0: ffffffff8e144ce0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 284.979426][ T7842] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 284.987442][ T7842] CPU: 0 UID: 0 PID: 7842 Comm: syz.1.259 Not tainted syzkaller #0 PREEMPT(full)
[ 284.987465][ T7842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 284.987477][ T7842] Call Trace:
[ 284.987485][ T7842]
[ 284.987493][ T7842] dump_stack_lvl+0xe8/0x150
[ 284.987521][ T7842] sysfs_create_dir_ns+0x259/0x280
[ 284.987550][ T7842] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 284.987577][ T7842] ? do_raw_spin_unlock+0xf6/0x210
[ 284.987601][ T7842] kobject_add_internal+0x6ab/0xcc0
[ 284.987633][ T7842] kobject_init_and_add+0x125/0x190
[ 284.987662][ T7842] ? __pfx_kobject_init_and_add+0x10/0x10
[ 284.987685][ T7842] ? __raw_spin_lock_init+0x45/0x100
[ 284.987704][ T7842] ? __init_swait_queue_head+0xa9/0x150
[ 284.987734][ T7842] gfs2_sys_fs_add+0x234/0x450
[ 284.987755][ T7842] ? is_dynamic_key+0x1ac/0x1c0
[ 284.987777][ T7842] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 284.987806][ T7842] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 284.987845][ T7842] gfs2_fill_super+0x1388/0x21b0
[ 284.987885][ T7842] ? __pfx_gfs2_fill_super+0x10/0x10
[ 284.987915][ T7842] ? sb_set_blocksize+0x155/0x240
[ 284.987940][ T7842] ? setup_bdev_super+0x4c1/0x5b0
[ 284.987965][ T7842] get_tree_bdev_flags+0x40e/0x4d0
[ 284.987988][ T7842] ? __pfx_gfs2_fill_super+0x10/0x10
[ 284.988014][ T7842] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 284.988035][ T7842] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 284.988067][ T7842] gfs2_get_tree+0x51/0x1e0
[ 284.988096][ T7842] vfs_get_tree+0x92/0x2a0
[ 284.988121][ T7842] do_new_mount+0x31a/0xcf0
[ 284.988138][ T7842] ? apparmor_capable+0x137/0x1a0
[ 284.988160][ T7842] ? __pfx_do_new_mount+0x10/0x10
[ 284.988178][ T7842] ? ns_capable+0x8a/0xf0
[ 284.988213][ T7842] ? user_path_at+0xd4/0x160
[ 284.988239][ T7842] ? user_path_at+0xd4/0x160
[ 284.988260][ T7842] __se_sys_mount+0x313/0x410
[ 284.988281][ T7842] ? __pfx___se_sys_mount+0x10/0x10
[ 284.988304][ T7842] ? __x64_sys_mount+0x20/0xc0
[ 284.988324][ T7842] do_syscall_64+0xec/0xf80
[ 284.988343][ T7842] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 284.988358][ T7842] ? trace_irq_disable+0x37/0x100
[ 284.988374][ T7842] ? clear_bhb_loop+0x40/0x90
[ 284.988393][ T7842] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 284.988410][ T7842] RIP: 0033:0x7f1f4f99038a
[ 284.988427][ T7842] 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
[ 284.988443][ T7842] RSP: 002b:00007f1f5074ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 284.988462][ T7842] RAX: ffffffffffffffda RBX: 00007f1f5074cef0 RCX: 00007f1f4f99038a
[ 284.988475][ T7842] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f1f5074ceb0
[ 284.988487][ T7842] RBP: 000020000001f680 R08: 00007f1f5074cef0 R09: 0000000000000084
[ 284.988498][ T7842] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 284.988509][ T7842] R13: 00007f1f5074ceb0 R14: 000000000001f790 R15: 00002000000001c0
[ 284.988537][ T7842]
[ 284.988561][ T7842] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 285.120056][ T7847] loop2: detected capacity change from 0 to 32768
[ 285.307408][ T31] 4 locks held by kworker/u8:4/59:
[ 285.312624][ T31] #0: ffff8880b863abe0 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x31/0x150
[ 285.322648][ T7842] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 285.383385][ T31] #1: ffff8880b8624588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
[ 285.408648][ T7850] loop3: detected capacity change from 0 to 32768
[ 285.425460][ T31] #2: ffff8880b8626118 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x1ae/0xf30
[ 285.452728][ T7847] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 285.487886][ T7850] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 285.494951][ T31] #3: ffffffff8e144ce0 (rcu_read_lock){....}-{1:3}, at: ieee80211_sta_active_ibss+0xc3/0x330
[ 285.495767][ T7847] CPU: 1 UID: 0 PID: 7847 Comm: syz.2.261 Not tainted syzkaller #0 PREEMPT(full)
[ 285.495790][ T7847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 285.495800][ T7847] Call Trace:
[ 285.495808][ T7847]
[ 285.495815][ T7847] dump_stack_lvl+0xe8/0x150
[ 285.495840][ T7847] sysfs_create_dir_ns+0x259/0x280
[ 285.495869][ T7847] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 285.495894][ T7847] ? do_raw_spin_unlock+0xf6/0x210
[ 285.495916][ T7847] kobject_add_internal+0x6ab/0xcc0
[ 285.495947][ T7847] kobject_init_and_add+0x125/0x190
[ 285.495983][ T7847] ? __pfx_kobject_init_and_add+0x10/0x10
[ 285.496006][ T7847] ? __raw_spin_lock_init+0x45/0x100
[ 285.496025][ T7847] ? __init_swait_queue_head+0xa9/0x150
[ 285.496054][ T7847] gfs2_sys_fs_add+0x234/0x450
[ 285.496074][ T7847] ? is_dynamic_key+0x1ac/0x1c0
[ 285.496095][ T7847] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 285.496123][ T7847] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 285.496160][ T7847] gfs2_fill_super+0x1388/0x21b0
[ 285.496199][ T7847] ? __pfx_gfs2_fill_super+0x10/0x10
[ 285.496227][ T7847] ? sb_set_blocksize+0x155/0x240
[ 285.496251][ T7847] ? setup_bdev_super+0x4c1/0x5b0
[ 285.496275][ T7847] get_tree_bdev_flags+0x40e/0x4d0
[ 285.496297][ T7847] ? __pfx_gfs2_fill_super+0x10/0x10
[ 285.496321][ T7847] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 285.496342][ T7847] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 285.496373][ T7847] gfs2_get_tree+0x51/0x1e0
[ 285.496400][ T7847] vfs_get_tree+0x92/0x2a0
[ 285.496424][ T7847] do_new_mount+0x31a/0xcf0
[ 285.496441][ T7847] ? apparmor_capable+0x137/0x1a0
[ 285.496462][ T7847] ? __pfx_do_new_mount+0x10/0x10
[ 285.496480][ T7847] ? ns_capable+0x8a/0xf0
[ 285.496503][ T7847] ? user_path_at+0xd4/0x160
[ 285.496527][ T7847] ? user_path_at+0xd4/0x160
[ 285.496549][ T7847] __se_sys_mount+0x313/0x410
2026/01/17 18:07:54 executed programs: 257
[ 285.496573][ T7847] ? __pfx___se_sys_mount+0x10/0x10
[ 285.496597][ T7847] ? __x64_sys_mount+0x20/0xc0
[ 285.496617][ T7847] do_syscall_64+0xec/0xf80
[ 285.496637][ T7847] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 285.496653][ T7847] ? trace_irq_disable+0x37/0x100
[ 285.496668][ T7847] ? clear_bhb_loop+0x40/0x90
[ 285.496688][ T7847] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 285.496704][ T7847] RIP: 0033:0x7f3e03d9038a
[ 285.496721][ T7847] 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
[ 285.496737][ T7847] RSP: 002b:00007f3e04c6ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 285.496754][ T7847] RAX: ffffffffffffffda RBX: 00007f3e04c6aef0 RCX: 00007f3e03d9038a
[ 285.496767][ T7847] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3e04c6aeb0
[ 285.496779][ T7847] RBP: 000020000001f680 R08: 00007f3e04c6aef0 R09: 0000000000000084
[ 285.496790][ T7847] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 285.496801][ T7847] R13: 00007f3e04c6aeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 285.496829][ T7847]
[ 285.496853][ T7847] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 285.554608][ T7850] CPU: 0 UID: 0 PID: 7850 Comm: syz.3.262 Not tainted syzkaller #0 PREEMPT(full)
[ 285.554632][ T7850] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 285.554641][ T7850] Call Trace:
[ 285.554648][ T7850]
[ 285.554656][ T7850] dump_stack_lvl+0xe8/0x150
[ 285.554683][ T7850] sysfs_create_dir_ns+0x259/0x280
[ 285.554712][ T7850] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 285.554737][ T7850] ? do_raw_spin_unlock+0xf6/0x210
[ 285.554759][ T7850] kobject_add_internal+0x6ab/0xcc0
[ 285.554790][ T7850] kobject_init_and_add+0x125/0x190
[ 285.554817][ T7850] ? __pfx_kobject_init_and_add+0x10/0x10
[ 285.554839][ T7850] ? __raw_spin_lock_init+0x45/0x100
[ 285.554857][ T7850] ? __init_swait_queue_head+0xa9/0x150
[ 285.554887][ T7850] gfs2_sys_fs_add+0x234/0x450
[ 285.554906][ T7850] ? is_dynamic_key+0x1ac/0x1c0
[ 285.554934][ T7850] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 285.554961][ T7850] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 285.554999][ T7850] gfs2_fill_super+0x1388/0x21b0
[ 285.555037][ T7850] ? __pfx_gfs2_fill_super+0x10/0x10
[ 285.555065][ T7850] ? sb_set_blocksize+0x155/0x240
[ 285.555089][ T7850] ? setup_bdev_super+0x4c1/0x5b0
[ 285.555114][ T7850] get_tree_bdev_flags+0x40e/0x4d0
[ 285.555136][ T7850] ? __pfx_gfs2_fill_super+0x10/0x10
[ 285.555160][ T7850] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 285.555180][ T7850] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 285.555210][ T7850] gfs2_get_tree+0x51/0x1e0
[ 285.555238][ T7850] vfs_get_tree+0x92/0x2a0
[ 285.555262][ T7850] do_new_mount+0x31a/0xcf0
[ 285.555277][ T7850] ? apparmor_capable+0x137/0x1a0
[ 285.555299][ T7850] ? __pfx_do_new_mount+0x10/0x10
[ 285.555316][ T7850] ? ns_capable+0x8a/0xf0
[ 285.555339][ T7850] ? user_path_at+0xd4/0x160
[ 285.555363][ T7850] ? user_path_at+0xd4/0x160
[ 285.555385][ T7850] __se_sys_mount+0x313/0x410
[ 285.555409][ T7850] ? __pfx___se_sys_mount+0x10/0x10
[ 285.555433][ T7850] ? __x64_sys_mount+0x20/0xc0
[ 285.555453][ T7850] do_syscall_64+0xec/0xf80
[ 285.555472][ T7850] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 285.555489][ T7850] ? trace_irq_disable+0x37/0x100
[ 285.555504][ T7850] ? clear_bhb_loop+0x40/0x90
[ 285.555524][ T7850] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 285.555541][ T7850] RIP: 0033:0x7f1860b9038a
[ 285.555558][ T7850] 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
[ 285.555573][ T7850] RSP: 002b:00007f18601fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 285.555591][ T7850] RAX: ffffffffffffffda RBX: 00007f18601fdef0 RCX: 00007f1860b9038a
[ 285.555604][ T7850] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f18601fdeb0
[ 285.555616][ T7850] RBP: 000020000001f680 R08: 00007f18601fdef0 R09: 0000000000000084
[ 285.555627][ T7850] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 285.555638][ T7850] R13: 00007f18601fdeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 285.555665][ T7850]
[ 285.555691][ T7850] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 285.561797][ T7847] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 285.583368][ T31] 2 locks held by kworker/0:3/1226:
[ 285.587655][ T7850] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 285.613379][ T31] #0:
[ 285.727627][ T7848] loop4: detected capacity change from 0 to 32768
[ 286.167684][ T31] ffff8881442cc948 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_one_work+0x841/0x15a0
[ 286.179741][ T31] #1: ffffc90003f9fc40 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x868/0x15a0
[ 286.195956][ T7848] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 286.203969][ T7848] CPU: 1 UID: 0 PID: 7848 Comm: syz.4.260 Not tainted syzkaller #0 PREEMPT(full)
[ 286.203991][ T7848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 286.204012][ T7848] Call Trace:
[ 286.204019][ T7848]
[ 286.204027][ T7848] dump_stack_lvl+0xe8/0x150
[ 286.204055][ T7848] sysfs_create_dir_ns+0x259/0x280
[ 286.204084][ T7848] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 286.204111][ T7848] ? do_raw_spin_unlock+0xf6/0x210
[ 286.204133][ T7848] kobject_add_internal+0x6ab/0xcc0
[ 286.204162][ T7848] kobject_init_and_add+0x125/0x190
[ 286.204198][ T7848] ? __pfx_kobject_init_and_add+0x10/0x10
[ 286.204222][ T7848] ? __raw_spin_lock_init+0x45/0x100
[ 286.204240][ T7848] ? __init_swait_queue_head+0xa9/0x150
[ 286.204268][ T7848] gfs2_sys_fs_add+0x234/0x450
[ 286.204287][ T7848] ? is_dynamic_key+0x1ac/0x1c0
[ 286.204309][ T7848] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 286.204337][ T7848] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 286.204383][ T7848] gfs2_fill_super+0x1388/0x21b0
[ 286.204424][ T7848] ? __pfx_gfs2_fill_super+0x10/0x10
[ 286.204454][ T7848] ? sb_set_blocksize+0x155/0x240
[ 286.204478][ T7848] ? setup_bdev_super+0x4c1/0x5b0
[ 286.204505][ T7848] get_tree_bdev_flags+0x40e/0x4d0
[ 286.204528][ T7848] ? __pfx_gfs2_fill_super+0x10/0x10
[ 286.204553][ T7848] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 286.204574][ T7848] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 286.204606][ T7848] gfs2_get_tree+0x51/0x1e0
[ 286.204635][ T7848] vfs_get_tree+0x92/0x2a0
[ 286.204661][ T7848] do_new_mount+0x31a/0xcf0
[ 286.204678][ T7848] ? apparmor_capable+0x137/0x1a0
[ 286.204700][ T7848] ? __pfx_do_new_mount+0x10/0x10
[ 286.204719][ T7848] ? ns_capable+0x8a/0xf0
[ 286.204743][ T7848] ? user_path_at+0xd4/0x160
[ 286.204768][ T7848] ? user_path_at+0xd4/0x160
[ 286.204787][ T7848] __se_sys_mount+0x313/0x410
[ 286.204809][ T7848] ? __pfx___se_sys_mount+0x10/0x10
[ 286.204830][ T7848] ? __x64_sys_mount+0x20/0xc0
[ 286.204849][ T7848] do_syscall_64+0xec/0xf80
[ 286.204866][ T7848] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 286.204880][ T7848] ? trace_irq_disable+0x37/0x100
[ 286.204892][ T7848] ? clear_bhb_loop+0x40/0x90
[ 286.204912][ T7848] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 286.204927][ T7848] RIP: 0033:0x7fd998d9038a
[ 286.204944][ T7848] 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
[ 286.204957][ T7848] RSP: 002b:00007fd999b60e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 286.204974][ T7848] RAX: ffffffffffffffda RBX: 00007fd999b60ef0 RCX: 00007fd998d9038a
[ 286.204984][ T7848] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd999b60eb0
[ 286.204995][ T7848] RBP: 000020000001f680 R08: 00007fd999b60ef0 R09: 0000000000000084
[ 286.205005][ T7848] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 286.205014][ T7848] R13: 00007fd999b60eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 286.205038][ T7848]
[ 286.205062][ T7848] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 286.246440][ T31] 2 locks held by kworker/u8:12/3474:
[ 286.253654][ T7848] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 286.283344][ T31] #0: ffff8880b863abe0 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x31/0x150
[ 287.115201][ T31] #1: ffff8880b8624588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
[ 287.153430][ T31] 2 locks held by getty/5583:
[ 287.158159][ T31] #0: ffff88814d8970a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 287.203353][ T31] #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x449/0x1460
[ 287.243318][ T31] 1 lock held by syz.0.17/6512:
[ 287.248216][ T31] #0: ffff8880540f80e0 (&type->s_umount_key#53/1){+.+.}-{4:4}, at: alloc_super+0x28c/0xaa0
[ 287.262292][ T7855] loop5: detected capacity change from 0 to 32768
[ 287.282606][ T31] 1 lock held by syz.5.263/7855:
[ 287.287977][ T31] 2 locks held by syz.1.264/7862:
[ 287.297982][ T31] 2 locks held by syz.3.265/7866:
[ 287.303054][ T31] 2 locks held by syz.2.266/7868:
[ 287.335728][ T31]
[ 287.338111][ T31] =============================================
[ 287.338111][ T31]
[ 287.414327][ T31] NMI backtrace for cpu 1
[ 287.414348][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 287.414368][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 287.414379][ T31] Call Trace:
[ 287.414387][ T31]
[ 287.414395][ T31] dump_stack_lvl+0xe8/0x150
[ 287.414424][ T31] nmi_cpu_backtrace+0x274/0x2d0
[ 287.414449][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 287.414471][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300
[ 287.414499][ T31] sys_info+0x135/0x170
[ 287.414520][ T31] watchdog+0xf95/0xfe0
[ 287.414541][ T31] ? watchdog+0x20a/0xfe0
[ 287.414563][ T31] kthread+0x389/0x480
[ 287.414580][ T31] ? __pfx_watchdog+0x10/0x10
[ 287.414594][ T31] ? __pfx_kthread+0x10/0x10
[ 287.414611][ T31] ret_from_fork+0x510/0xa50
[ 287.414634][ T31] ? __pfx_ret_from_fork+0x10/0x10
[ 287.414654][ T31] ? __switch_to+0xc9e/0x1480
[ 287.414676][ T31] ? __pfx_kthread+0x10/0x10
[ 287.414693][ T31] ret_from_fork_asm+0x1a/0x30
[ 287.414731][ T31]
[ 287.414738][ T31] Sending NMI from CPU 1 to CPUs 0:
[ 287.528477][ C0] NMI backtrace for cpu 0
[ 287.528496][ C0] CPU: 0 UID: 0 PID: 6604 Comm: udevd Not tainted syzkaller #0 PREEMPT(full)
[ 287.528515][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 287.528526][ C0] RIP: 0010:__might_resched+0x147/0x4d0
[ 287.528553][ C0] Code: 28 84 c0 0f 85 d7 02 00 00 41 f6 45 00 02 75 21 4d 8d ae 98 0a 00 00 4c 89 e8 48 c1 e8 03 0f b6 04 28 84 c0 0f 85 d4 02 00 00 <41> 83 7d 00 00 74 7e 48 c7 c0 80 97 a2 8f 48 c1 e8 03 0f b6 04 28
[ 287.528567][ C0] RSP: 0018:ffffc9000415f428 EFLAGS: 00000246
[ 287.528583][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000046
[ 287.528594][ C0] RDX: 0000000000000000 RSI: ffffffff8db8bddd RDI: ffffffff8be09760
[ 287.528605][ C0] RBP: dffffc0000000000 R08: ffff88807f4fe063 R09: 1ffff1100fe9fc0c
[ 287.528618][ C0] R10: dffffc0000000000 R11: ffffed100fe9fc0d R12: ffff88802c98a2c4
[ 287.528630][ C0] R13: ffff88802c98a8d8 R14: ffff88802c989e40 R15: 1ffff11005931458
[ 287.528643][ C0] FS: 00007f7c3a744880(0000) GS:ffff888125bf9000(0000) knlGS:0000000000000000
[ 287.528657][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 287.528669][ C0] CR2: 00007f7c39ffe000 CR3: 0000000073392000 CR4: 00000000003526f0
[ 287.528683][ C0] Call Trace:
[ 287.528690][ C0]
[ 287.528700][ C0] unmap_page_range+0x3b7f/0x4170
[ 287.528741][ C0] ? __pfx_unmap_page_range+0x10/0x10
[ 287.528762][ C0] ? unmap_vmas+0x144/0x580
[ 287.528784][ C0] ? unmap_vmas+0x144/0x580
[ 287.528805][ C0] unmap_vmas+0x399/0x580
[ 287.528828][ C0] ? __pfx_unmap_vmas+0x10/0x10
[ 287.528856][ C0] ? tlb_gather_mmu+0x234/0x300
[ 287.528877][ C0] vms_clear_ptes+0x353/0x530
[ 287.528897][ C0] ? __pfx_vms_clear_ptes+0x10/0x10
[ 287.528921][ C0] vms_complete_munmap_vmas+0x206/0x8a0
[ 287.528947][ C0] ? __mas_set_range+0x12f/0x3c0
[ 287.528964][ C0] do_vmi_align_munmap+0x364/0x440
[ 287.528994][ C0] ? __pfx_do_vmi_align_munmap+0x10/0x10
[ 287.529030][ C0] do_vmi_munmap+0x253/0x2e0
[ 287.529055][ C0] __vm_munmap+0x207/0x380
[ 287.529070][ C0] ? __pfx___vm_munmap+0x10/0x10
[ 287.529090][ C0] ? rcu_is_watching+0x15/0xb0
[ 287.529115][ C0] __x64_sys_munmap+0x60/0x70
[ 287.529139][ C0] do_syscall_64+0xec/0xf80
[ 287.529165][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 287.529181][ C0] ? clear_bhb_loop+0x40/0x90
[ 287.529199][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 287.529214][ C0] RIP: 0033:0x7f7c3a11e097
[ 287.529227][ C0] Code: 73 01 c3 48 8b 0d 61 2d 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 31 2d 0d 00 f7 d8 64 89 01 48
[ 287.529241][ C0] RSP: 002b:00007ffc80b40ef8 EFLAGS: 00000246 ORIG_RAX: 000000000000000b
[ 287.529257][ C0] RAX: ffffffffffffffda RBX: 0000564a23776730 RCX: 00007f7c3a11e097
[ 287.529269][ C0] RDX: 0000564a23771418 RSI: 0000000000000200 RDI: 00007f7c3a003000
[ 287.529281][ C0] RBP: 0000564a23783ff0 R08: 0000000000000030 R09: 0000000000040000
[ 287.529292][ C0] R10: 0000564a23783fe0 R11: 0000000000000246 R12: 00007f7c3a8697c0
[ 287.529303][ C0] R13: 00007f7c3a86b39c R14: 0000000000000022 R15: 0000000000000001
[ 287.529321][ C0]
[ 287.573799][ T7855] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 287.778586][ T31] Kernel panic - not syncing: hung_task: blocked tasks
[ 287.778607][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 287.778628][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 287.778640][ T31] Call Trace:
[ 287.778649][ T31]
[ 287.778658][ T31] vpanic+0x1e0/0x670
[ 287.778687][ T31] panic+0xb9/0xc0
[ 287.778712][ T31] ? __pfx_panic+0x10/0x10
[ 287.778736][ T31] ? preempt_schedule_thunk+0x16/0x30
[ 287.778759][ T31] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[ 287.778789][ T31] watchdog+0xfdf/0xfe0
[ 287.778811][ T31] ? watchdog+0x20a/0xfe0
[ 287.778834][ T31] kthread+0x389/0x480
[ 287.778851][ T31] ? __pfx_watchdog+0x10/0x10
[ 287.778872][ T31] ? __pfx_kthread+0x10/0x10
[ 287.778889][ T31] ret_from_fork+0x510/0xa50
[ 287.778913][ T31] ? __pfx_ret_from_fork+0x10/0x10
[ 287.778932][ T31] ? __switch_to+0xc9e/0x1480
[ 287.778954][ T31] ? __pfx_kthread+0x10/0x10
[ 287.778970][ T31] ret_from_fork_asm+0x1a/0x30
[ 287.779006][ T31]
[ 287.794609][ T31] Kernel Offset: disabled