0000000000000084
[ 436.264514][ T8794] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 436.264527][ T8794] R13: 00007f5b4c0b5eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 436.264560][ T8794]
[ 436.264587][ T8794] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 436.327553][ T8790] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 436.394505][ T8794] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 436.467148][ T8792] loop4: detected capacity change from 0 to 32768
[ 436.720263][ T8792] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 436.741150][ T8792] CPU: 0 UID: 0 PID: 8792 Comm: syz.4.486 Not tainted syzkaller #0 PREEMPT(full)
[ 436.741176][ T8792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 436.741188][ T8792] Call Trace:
[ 436.741196][ T8792]
[ 436.741206][ T8792] dump_stack_lvl+0x189/0x250
[ 436.741236][ T8792] ? __pfx_dump_stack_lvl+0x10/0x10
[ 436.741257][ T8792] ? __pfx__printk+0x10/0x10
[ 436.741288][ T8792] ? kernfs_path_from_node+0x250/0x290
[ 436.741308][ T8792] ? kernfs_path_from_node+0x2f/0x290
[ 436.741332][ T8792] sysfs_create_dir_ns+0x259/0x280
[ 436.741356][ T8792] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 436.741378][ T8792] ? do_raw_spin_unlock+0x122/0x240
[ 436.741404][ T8792] kobject_add_internal+0x59f/0xb40
[ 436.741435][ T8792] kobject_init_and_add+0x125/0x190
[ 436.741463][ T8792] ? __pfx_kobject_init_and_add+0x10/0x10
[ 436.741487][ T8792] ? __raw_spin_lock_init+0x45/0x100
[ 436.741509][ T8792] ? __init_swait_queue_head+0xa9/0x150
[ 436.741533][ T8792] gfs2_sys_fs_add+0x234/0x450
[ 436.741556][ T8792] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 436.741581][ T8792] ? is_dynamic_key+0xd6/0x1c0
[ 436.741604][ T8792] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 436.741641][ T8792] gfs2_fill_super+0x13c0/0x20d0
[ 436.741683][ T8792] ? __pfx_gfs2_fill_super+0x10/0x10
[ 436.741712][ T8792] ? sb_set_blocksize+0x104/0x180
[ 436.741744][ T8792] ? setup_bdev_super+0x4c1/0x5b0
[ 436.741772][ T8792] get_tree_bdev_flags+0x40e/0x4d0
[ 436.741796][ T8792] ? __pfx_gfs2_fill_super+0x10/0x10
[ 436.741819][ T8792] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 436.741840][ T8792] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 436.741870][ T8792] gfs2_get_tree+0x51/0x1e0
[ 436.741897][ T8792] vfs_get_tree+0x92/0x2b0
[ 436.741924][ T8792] do_new_mount+0x302/0xa10
[ 436.741947][ T8792] ? apparmor_capable+0x137/0x1b0
[ 436.741975][ T8792] ? __pfx_do_new_mount+0x10/0x10
[ 436.741999][ T8792] ? ns_capable+0x8a/0xf0
[ 436.742027][ T8792] ? kmem_cache_free+0x19a/0x690
[ 436.742062][ T8792] __se_sys_mount+0x313/0x410
[ 436.742095][ T8792] ? __pfx___se_sys_mount+0x10/0x10
[ 436.742124][ T8792] ? do_syscall_64+0xbe/0xfa0
[ 436.742142][ T8792] ? __x64_sys_mount+0x20/0xc0
[ 436.742170][ T8792] do_syscall_64+0xfa/0xfa0
[ 436.742188][ T8792] ? lockdep_hardirqs_on+0x9c/0x150
[ 436.742208][ T8792] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 436.742226][ T8792] ? clear_bhb_loop+0x60/0xb0
[ 436.742248][ T8792] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 436.742274][ T8792] RIP: 0033:0x7f7eab79038a
[ 436.742292][ T8792] 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
[ 436.742308][ T8792] RSP: 002b:00007f7eac6e0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 436.742328][ T8792] RAX: ffffffffffffffda RBX: 00007f7eac6e0ef0 RCX: 00007f7eab79038a
[ 436.742342][ T8792] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f7eac6e0eb0
[ 436.742356][ T8792] RBP: 000020000001f680 R08: 00007f7eac6e0ef0 R09: 0000000000000084
[ 436.742369][ T8792] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 436.742382][ T8792] R13: 00007f7eac6e0eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 436.742415][ T8792]
[ 436.742442][ T8792] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 437.123074][ T8792] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 437.791672][ T8805] loop1: detected capacity change from 0 to 32768
[ 437.870470][ T8805] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 437.879816][ T8805] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 437.969097][ T8805] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 438.023090][ T6428] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 438.030076][ T6428] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 438.140394][ T6428] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 110ms
[ 438.172294][ T6428] gfs2: fsid=syz:syz.0: jid=0: Done
[ 438.179176][ T8805] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 438.492376][ T8817] loop3: detected capacity change from 0 to 32768
[ 438.536773][ T8817] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 438.580403][ T8817] CPU: 1 UID: 0 PID: 8817 Comm: syz.3.491 Not tainted syzkaller #0 PREEMPT(full)
[ 438.580429][ T8817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 438.580441][ T8817] Call Trace:
[ 438.580449][ T8817]
[ 438.580458][ T8817] dump_stack_lvl+0x189/0x250
[ 438.580488][ T8817] ? __pfx_dump_stack_lvl+0x10/0x10
[ 438.580510][ T8817] ? __pfx__printk+0x10/0x10
[ 438.580540][ T8817] ? kernfs_path_from_node+0x250/0x290
[ 438.580559][ T8817] ? kernfs_path_from_node+0x2f/0x290
[ 438.580584][ T8817] sysfs_create_dir_ns+0x259/0x280
[ 438.580608][ T8817] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 438.580630][ T8817] ? do_raw_spin_unlock+0x122/0x240
[ 438.580656][ T8817] kobject_add_internal+0x59f/0xb40
[ 438.580698][ T8817] kobject_init_and_add+0x125/0x190
[ 438.580726][ T8817] ? __pfx_kobject_init_and_add+0x10/0x10
[ 438.580750][ T8817] ? __raw_spin_lock_init+0x45/0x100
[ 438.580771][ T8817] ? __init_swait_queue_head+0xa9/0x150
[ 438.580795][ T8817] gfs2_sys_fs_add+0x234/0x450
[ 438.580819][ T8817] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 438.580845][ T8817] ? is_dynamic_key+0xd6/0x1c0
[ 438.580867][ T8817] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 438.580904][ T8817] gfs2_fill_super+0x13c0/0x20d0
[ 438.580944][ T8817] ? __pfx_gfs2_fill_super+0x10/0x10
[ 438.580975][ T8817] ? sb_set_blocksize+0x104/0x180
[ 438.580992][ T8817] ? setup_bdev_super+0x4c1/0x5b0
[ 438.581017][ T8817] get_tree_bdev_flags+0x40e/0x4d0
[ 438.581039][ T8817] ? __pfx_gfs2_fill_super+0x10/0x10
[ 438.581062][ T8817] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 438.581082][ T8817] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 438.581111][ T8817] gfs2_get_tree+0x51/0x1e0
[ 438.581138][ T8817] vfs_get_tree+0x92/0x2b0
[ 438.581165][ T8817] do_new_mount+0x302/0xa10
[ 438.581189][ T8817] ? apparmor_capable+0x137/0x1b0
[ 438.581217][ T8817] ? __pfx_do_new_mount+0x10/0x10
[ 438.581242][ T8817] ? ns_capable+0x8a/0xf0
[ 438.581269][ T8817] ? kmem_cache_free+0x19a/0x690
[ 438.581306][ T8817] __se_sys_mount+0x313/0x410
[ 438.581337][ T8817] ? __pfx___se_sys_mount+0x10/0x10
[ 438.581367][ T8817] ? do_syscall_64+0xbe/0xfa0
[ 438.581385][ T8817] ? __x64_sys_mount+0x20/0xc0
[ 438.581412][ T8817] do_syscall_64+0xfa/0xfa0
[ 438.581431][ T8817] ? lockdep_hardirqs_on+0x9c/0x150
[ 438.581450][ T8817] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 438.581468][ T8817] ? clear_bhb_loop+0x60/0xb0
[ 438.581487][ T8817] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 438.581502][ T8817] RIP: 0033:0x7f5b4b19038a
[ 438.581518][ T8817] 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
[ 438.581533][ T8817] RSP: 002b:00007f5b4c0b5e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 438.581552][ T8817] RAX: ffffffffffffffda RBX: 00007f5b4c0b5ef0 RCX: 00007f5b4b19038a
[ 438.581566][ T8817] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f5b4c0b5eb0
[ 438.581577][ T8817] RBP: 000020000001f680 R08: 00007f5b4c0b5ef0 R09: 0000000000000084
[ 438.581589][ T8817] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 438.581600][ T8817] R13: 00007f5b4c0b5eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 438.581629][ T8817]
[ 438.950671][ T8813] loop2: detected capacity change from 0 to 32768
[ 438.961440][ T8817] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 439.001825][ T8817] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 439.025180][ T8815] loop4: detected capacity change from 0 to 32768
[ 439.032526][ T8811] loop0: detected capacity change from 0 to 32768
[ 439.066819][ T8815] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 439.081967][ T8815] CPU: 1 UID: 0 PID: 8815 Comm: syz.4.489 Not tainted syzkaller #0 PREEMPT(full)
[ 439.081993][ T8815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 439.082005][ T8815] Call Trace:
[ 439.082014][ T8815]
[ 439.082022][ T8815] dump_stack_lvl+0x189/0x250
[ 439.082050][ T8815] ? __pfx_dump_stack_lvl+0x10/0x10
[ 439.082071][ T8815] ? __pfx__printk+0x10/0x10
[ 439.082100][ T8815] ? kernfs_path_from_node+0x250/0x290
[ 439.082119][ T8815] ? kernfs_path_from_node+0x2f/0x290
[ 439.082143][ T8815] sysfs_create_dir_ns+0x259/0x280
[ 439.082168][ T8815] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 439.082191][ T8815] ? do_raw_spin_unlock+0x122/0x240
[ 439.082216][ T8815] kobject_add_internal+0x59f/0xb40
[ 439.082248][ T8815] kobject_init_and_add+0x125/0x190
[ 439.082276][ T8815] ? __pfx_kobject_init_and_add+0x10/0x10
[ 439.082300][ T8815] ? __raw_spin_lock_init+0x45/0x100
[ 439.082322][ T8815] ? __init_swait_queue_head+0xa9/0x150
[ 439.082346][ T8815] gfs2_sys_fs_add+0x234/0x450
[ 439.082369][ T8815] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 439.082396][ T8815] ? is_dynamic_key+0xd6/0x1c0
[ 439.082418][ T8815] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 439.082454][ T8815] gfs2_fill_super+0x13c0/0x20d0
[ 439.082496][ T8815] ? __pfx_gfs2_fill_super+0x10/0x10
[ 439.082525][ T8815] ? sb_set_blocksize+0x104/0x180
[ 439.082547][ T8815] ? setup_bdev_super+0x4c1/0x5b0
[ 439.082575][ T8815] get_tree_bdev_flags+0x40e/0x4d0
[ 439.082599][ T8815] ? __pfx_gfs2_fill_super+0x10/0x10
[ 439.082630][ T8815] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 439.082652][ T8815] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 439.082682][ T8815] gfs2_get_tree+0x51/0x1e0
[ 439.082709][ T8815] vfs_get_tree+0x92/0x2b0
[ 439.082736][ T8815] do_new_mount+0x302/0xa10
[ 439.082759][ T8815] ? apparmor_capable+0x137/0x1b0
[ 439.082787][ T8815] ? __pfx_do_new_mount+0x10/0x10
[ 439.082809][ T8815] ? ns_capable+0x8a/0xf0
[ 439.082837][ T8815] ? kmem_cache_free+0x19a/0x690
[ 439.082871][ T8815] __se_sys_mount+0x313/0x410
[ 439.082903][ T8815] ? __pfx___se_sys_mount+0x10/0x10
[ 439.082932][ T8815] ? do_syscall_64+0xbe/0xfa0
[ 439.082951][ T8815] ? __x64_sys_mount+0x20/0xc0
[ 439.082977][ T8815] do_syscall_64+0xfa/0xfa0
[ 439.082996][ T8815] ? lockdep_hardirqs_on+0x9c/0x150
[ 439.083015][ T8815] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 439.083033][ T8815] ? clear_bhb_loop+0x60/0xb0
[ 439.083055][ T8815] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 439.083073][ T8815] RIP: 0033:0x7f7eab79038a
[ 439.083090][ T8815] 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
[ 439.083106][ T8815] RSP: 002b:00007f7eac6e0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 439.083126][ T8815] RAX: ffffffffffffffda RBX: 00007f7eac6e0ef0 RCX: 00007f7eab79038a
[ 439.083140][ T8815] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f7eac6e0eb0
[ 439.083153][ T8815] RBP: 000020000001f680 R08: 00007f7eac6e0ef0 R09: 0000000000000084
[ 439.083166][ T8815] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 439.083178][ T8815] R13: 00007f7eac6e0eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 439.083211][ T8815]
[ 439.084401][ T8815] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 439.126914][ T8813] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 439.134280][ T8815] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 439.270507][ T8813] CPU: 0 UID: 0 PID: 8813 Comm: syz.2.490 Not tainted syzkaller #0 PREEMPT(full)
[ 439.270532][ T8813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 439.270544][ T8813] Call Trace:
[ 439.270553][ T8813]
[ 439.270562][ T8813] dump_stack_lvl+0x189/0x250
[ 439.270593][ T8813] ? __pfx_dump_stack_lvl+0x10/0x10
[ 439.270621][ T8813] ? __pfx__printk+0x10/0x10
[ 439.270651][ T8813] ? kernfs_path_from_node+0x250/0x290
[ 439.270670][ T8813] ? kernfs_path_from_node+0x2f/0x290
[ 439.270694][ T8813] sysfs_create_dir_ns+0x259/0x280
[ 439.270717][ T8813] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 439.270738][ T8813] ? do_raw_spin_unlock+0x122/0x240
[ 439.270762][ T8813] kobject_add_internal+0x59f/0xb40
[ 439.270793][ T8813] kobject_init_and_add+0x125/0x190
[ 439.270821][ T8813] ? __pfx_kobject_init_and_add+0x10/0x10
[ 439.270843][ T8813] ? __raw_spin_lock_init+0x45/0x100
[ 439.270864][ T8813] ? __init_swait_queue_head+0xa9/0x150
[ 439.270888][ T8813] gfs2_sys_fs_add+0x234/0x450
[ 439.270910][ T8813] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 439.270936][ T8813] ? is_dynamic_key+0xd6/0x1c0
[ 439.270958][ T8813] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 439.270997][ T8813] gfs2_fill_super+0x13c0/0x20d0
[ 439.271036][ T8813] ? __pfx_gfs2_fill_super+0x10/0x10
[ 439.271064][ T8813] ? sb_set_blocksize+0x104/0x180
[ 439.271085][ T8813] ? setup_bdev_super+0x4c1/0x5b0
[ 439.271111][ T8813] get_tree_bdev_flags+0x40e/0x4d0
[ 439.271135][ T8813] ? __pfx_gfs2_fill_super+0x10/0x10
[ 439.271158][ T8813] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 439.271179][ T8813] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 439.271207][ T8813] gfs2_get_tree+0x51/0x1e0
[ 439.271233][ T8813] vfs_get_tree+0x92/0x2b0
[ 439.271260][ T8813] do_new_mount+0x302/0xa10
[ 439.271282][ T8813] ? apparmor_capable+0x137/0x1b0
[ 439.271309][ T8813] ? __pfx_do_new_mount+0x10/0x10
[ 439.271334][ T8813] ? ns_capable+0x8a/0xf0
[ 439.271361][ T8813] ? kmem_cache_free+0x19a/0x690
[ 439.271395][ T8813] __se_sys_mount+0x313/0x410
[ 439.271427][ T8813] ? __pfx___se_sys_mount+0x10/0x10
[ 439.271456][ T8813] ? do_syscall_64+0xbe/0xfa0
[ 439.271473][ T8813] ? __x64_sys_mount+0x20/0xc0
[ 439.271500][ T8813] do_syscall_64+0xfa/0xfa0
[ 439.271518][ T8813] ? lockdep_hardirqs_on+0x9c/0x150
[ 439.271537][ T8813] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 439.271554][ T8813] ? clear_bhb_loop+0x60/0xb0
[ 439.271575][ T8813] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 439.271592][ T8813] RIP: 0033:0x7f00e119038a
[ 439.271615][ T8813] 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
[ 439.271631][ T8813] RSP: 002b:00007f00e1ff0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 439.271650][ T8813] RAX: ffffffffffffffda RBX: 00007f00e1ff0ef0 RCX: 00007f00e119038a
[ 439.271663][ T8813] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f00e1ff0eb0
[ 439.271676][ T8813] RBP: 000020000001f680 R08: 00007f00e1ff0ef0 R09: 0000000000000084
[ 439.271688][ T8813] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 439.271700][ T8813] R13: 00007f00e1ff0eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 439.271732][ T8813]
[ 439.271930][ T8813] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 439.659716][ T8811] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 439.664250][ T8813] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 439.681193][ T8811] CPU: 1 UID: 0 PID: 8811 Comm: syz.0.488 Not tainted syzkaller #0 PREEMPT(full)
[ 439.681220][ T8811] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 439.681231][ T8811] Call Trace:
[ 439.681239][ T8811]
[ 439.681249][ T8811] dump_stack_lvl+0x189/0x250
[ 439.681279][ T8811] ? __pfx_dump_stack_lvl+0x10/0x10
[ 439.681300][ T8811] ? __pfx__printk+0x10/0x10
[ 439.681330][ T8811] ? kernfs_path_from_node+0x250/0x290
[ 439.681349][ T8811] ? kernfs_path_from_node+0x2f/0x290
[ 439.681373][ T8811] sysfs_create_dir_ns+0x259/0x280
[ 439.681395][ T8811] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 439.681417][ T8811] ? do_raw_spin_unlock+0x122/0x240
[ 439.681442][ T8811] kobject_add_internal+0x59f/0xb40
[ 439.681473][ T8811] kobject_init_and_add+0x125/0x190
[ 439.681500][ T8811] ? __pfx_kobject_init_and_add+0x10/0x10
[ 439.681522][ T8811] ? __raw_spin_lock_init+0x45/0x100
[ 439.681543][ T8811] ? __init_swait_queue_head+0xa9/0x150
[ 439.681574][ T8811] gfs2_sys_fs_add+0x234/0x450
[ 439.681597][ T8811] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 439.681623][ T8811] ? is_dynamic_key+0xd6/0x1c0
[ 439.681644][ T8811] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 439.681679][ T8811] gfs2_fill_super+0x13c0/0x20d0
[ 439.681719][ T8811] ? __pfx_gfs2_fill_super+0x10/0x10
[ 439.681747][ T8811] ? sb_set_blocksize+0x104/0x180
[ 439.681768][ T8811] ? setup_bdev_super+0x4c1/0x5b0
[ 439.681796][ T8811] get_tree_bdev_flags+0x40e/0x4d0
[ 439.681820][ T8811] ? __pfx_gfs2_fill_super+0x10/0x10
[ 439.681843][ T8811] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 439.681864][ T8811] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 439.681892][ T8811] gfs2_get_tree+0x51/0x1e0
[ 439.681917][ T8811] vfs_get_tree+0x92/0x2b0
[ 439.681941][ T8811] do_new_mount+0x302/0xa10
[ 439.681962][ T8811] ? apparmor_capable+0x137/0x1b0
[ 439.681987][ T8811] ? __pfx_do_new_mount+0x10/0x10
[ 439.682011][ T8811] ? ns_capable+0x8a/0xf0
[ 439.682038][ T8811] ? kmem_cache_free+0x19a/0x690
[ 439.682073][ T8811] __se_sys_mount+0x313/0x410
[ 439.682105][ T8811] ? __pfx___se_sys_mount+0x10/0x10
[ 439.682134][ T8811] ? do_syscall_64+0xbe/0xfa0
[ 439.682151][ T8811] ? __x64_sys_mount+0x20/0xc0
[ 439.682178][ T8811] do_syscall_64+0xfa/0xfa0
[ 439.682196][ T8811] ? lockdep_hardirqs_on+0x9c/0x150
[ 439.682215][ T8811] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 439.682232][ T8811] ? clear_bhb_loop+0x60/0xb0
[ 439.682253][ T8811] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 439.682271][ T8811] RIP: 0033:0x7fb5c599038a
[ 439.682288][ T8811] 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
[ 439.682303][ T8811] RSP: 002b:00007fb5c67c3e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 439.682322][ T8811] RAX: ffffffffffffffda RBX: 00007fb5c67c3ef0 RCX: 00007fb5c599038a
[ 439.682336][ T8811] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb5c67c3eb0
[ 439.682349][ T8811] RBP: 000020000001f680 R08: 00007fb5c67c3ef0 R09: 0000000000000084
[ 439.682361][ T8811] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 439.682373][ T8811] R13: 00007fb5c67c3eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 439.682404][ T8811]
[ 439.682431][ T8811] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 440.161684][ T1303] ieee802154 phy0 wpan0: encryption failed: -22
[ 440.168394][ T1303] ieee802154 phy1 wpan1: encryption failed: -22
[ 440.195329][ T8811] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 441.327704][ T8831] loop4: detected capacity change from 0 to 32768
[ 441.377979][ T8831] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 441.417173][ T8831] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 441.508965][ T8831] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 441.555981][ T6428] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 441.570964][ T6428] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 441.724096][ T6428] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 153ms
[ 441.748593][ T6428] gfs2: fsid=syz:syz.0: jid=0: Done
[ 441.765233][ T8831] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 441.780207][ T8833] loop0: detected capacity change from 0 to 32768
[ 441.830219][ T8833] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 441.868364][ T8833] CPU: 0 UID: 0 PID: 8833 Comm: syz.0.495 Not tainted syzkaller #0 PREEMPT(full)
[ 441.868392][ T8833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 441.868404][ T8833] Call Trace:
[ 441.868412][ T8833]
[ 441.868422][ T8833] dump_stack_lvl+0x189/0x250
[ 441.868454][ T8833] ? __pfx_dump_stack_lvl+0x10/0x10
[ 441.868475][ T8833] ? __pfx__printk+0x10/0x10
[ 441.868506][ T8833] ? kernfs_path_from_node+0x250/0x290
[ 441.868527][ T8833] ? kernfs_path_from_node+0x2f/0x290
[ 441.868548][ T8833] sysfs_create_dir_ns+0x259/0x280
[ 441.868569][ T8833] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 441.868589][ T8833] ? do_raw_spin_unlock+0x122/0x240
[ 441.868611][ T8833] kobject_add_internal+0x59f/0xb40
[ 441.868638][ T8833] kobject_init_and_add+0x125/0x190
[ 441.868663][ T8833] ? __pfx_kobject_init_and_add+0x10/0x10
[ 441.868685][ T8833] ? __raw_spin_lock_init+0x45/0x100
[ 441.868705][ T8833] ? __init_swait_queue_head+0xa9/0x150
[ 441.868727][ T8833] gfs2_sys_fs_add+0x234/0x450
[ 441.868749][ T8833] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 441.868772][ T8833] ? is_dynamic_key+0xd6/0x1c0
[ 441.868793][ T8833] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 441.868826][ T8833] gfs2_fill_super+0x13c0/0x20d0
[ 441.868867][ T8833] ? __pfx_gfs2_fill_super+0x10/0x10
[ 441.868896][ T8833] ? sb_set_blocksize+0x104/0x180
[ 441.868918][ T8833] ? setup_bdev_super+0x4c1/0x5b0
[ 441.868945][ T8833] get_tree_bdev_flags+0x40e/0x4d0
[ 441.868970][ T8833] ? __pfx_gfs2_fill_super+0x10/0x10
[ 441.868992][ T8833] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 441.869017][ T8833] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 441.869046][ T8833] gfs2_get_tree+0x51/0x1e0
[ 441.869074][ T8833] vfs_get_tree+0x92/0x2b0
[ 441.869101][ T8833] do_new_mount+0x302/0xa10
[ 441.869124][ T8833] ? apparmor_capable+0x137/0x1b0
[ 441.869153][ T8833] ? __pfx_do_new_mount+0x10/0x10
[ 441.869178][ T8833] ? ns_capable+0x8a/0xf0
[ 441.869206][ T8833] ? kmem_cache_free+0x19a/0x690
[ 441.869242][ T8833] __se_sys_mount+0x313/0x410
[ 441.869274][ T8833] ? __pfx___se_sys_mount+0x10/0x10
[ 441.869305][ T8833] ? do_syscall_64+0xbe/0xfa0
[ 441.869330][ T8833] ? __x64_sys_mount+0x20/0xc0
[ 441.869358][ T8833] do_syscall_64+0xfa/0xfa0
[ 441.869377][ T8833] ? lockdep_hardirqs_on+0x9c/0x150
[ 441.869396][ T8833] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 441.869414][ T8833] ? clear_bhb_loop+0x60/0xb0
[ 441.869436][ T8833] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 441.869454][ T8833] RIP: 0033:0x7fb5c599038a
[ 441.869473][ T8833] 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
[ 441.869490][ T8833] RSP: 002b:00007fb5c67c3e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 441.869511][ T8833] RAX: ffffffffffffffda RBX: 00007fb5c67c3ef0 RCX: 00007fb5c599038a
[ 441.869525][ T8833] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb5c67c3eb0
[ 441.869538][ T8833] RBP: 000020000001f680 R08: 00007fb5c67c3ef0 R09: 0000000000000084
[ 441.869551][ T8833] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 441.869563][ T8833] R13: 00007fb5c67c3eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 441.869594][ T8833]
[ 441.885089][ T8837] loop2: detected capacity change from 0 to 32768
[ 441.913693][ T8839] loop1: detected capacity change from 0 to 32768
[ 441.931547][ T8833] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 441.939532][ T8835] loop3: detected capacity change from 0 to 32768
[ 441.963695][ T8833] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 442.114572][ T8837] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 442.246265][ T8837] CPU: 0 UID: 0 PID: 8837 Comm: syz.2.496 Not tainted syzkaller #0 PREEMPT(full)
[ 442.246288][ T8839] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 442.246292][ T8837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 442.246303][ T8837] Call Trace:
[ 442.246310][ T8837]
[ 442.246318][ T8837] dump_stack_lvl+0x189/0x250
[ 442.246345][ T8837] ? __pfx_dump_stack_lvl+0x10/0x10
[ 442.246364][ T8837] ? __pfx__printk+0x10/0x10
[ 442.246394][ T8837] ? kernfs_path_from_node+0x250/0x290
[ 442.246413][ T8837] ? kernfs_path_from_node+0x2f/0x290
[ 442.246438][ T8837] sysfs_create_dir_ns+0x259/0x280
[ 442.246460][ T8837] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 442.246481][ T8837] ? do_raw_spin_unlock+0x122/0x240
[ 442.246507][ T8837] kobject_add_internal+0x59f/0xb40
[ 442.246538][ T8837] kobject_init_and_add+0x125/0x190
[ 442.246574][ T8837] ? __pfx_kobject_init_and_add+0x10/0x10
[ 442.246596][ T8837] ? __raw_spin_lock_init+0x45/0x100
[ 442.246617][ T8837] ? __init_swait_queue_head+0xa9/0x150
[ 442.246640][ T8837] gfs2_sys_fs_add+0x234/0x450
[ 442.246662][ T8837] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 442.246688][ T8837] ? is_dynamic_key+0xd6/0x1c0
[ 442.246709][ T8837] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 442.246744][ T8837] gfs2_fill_super+0x13c0/0x20d0
[ 442.246784][ T8837] ? __pfx_gfs2_fill_super+0x10/0x10
[ 442.246811][ T8837] ? sb_set_blocksize+0x104/0x180
[ 442.246833][ T8837] ? setup_bdev_super+0x4c1/0x5b0
[ 442.246860][ T8837] get_tree_bdev_flags+0x40e/0x4d0
[ 442.246884][ T8837] ? __pfx_gfs2_fill_super+0x10/0x10
[ 442.246907][ T8837] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 442.246928][ T8837] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 442.246958][ T8837] gfs2_get_tree+0x51/0x1e0
[ 442.246983][ T8837] vfs_get_tree+0x92/0x2b0
[ 442.247009][ T8837] do_new_mount+0x302/0xa10
[ 442.247031][ T8837] ? apparmor_capable+0x137/0x1b0
[ 442.247058][ T8837] ? __pfx_do_new_mount+0x10/0x10
[ 442.247083][ T8837] ? ns_capable+0x8a/0xf0
[ 442.247110][ T8837] ? kmem_cache_free+0x19a/0x690
[ 442.247145][ T8837] __se_sys_mount+0x313/0x410
[ 442.247176][ T8837] ? __pfx___se_sys_mount+0x10/0x10
[ 442.247205][ T8837] ? do_syscall_64+0xbe/0xfa0
[ 442.247223][ T8837] ? __x64_sys_mount+0x20/0xc0
[ 442.247250][ T8837] do_syscall_64+0xfa/0xfa0
[ 442.247267][ T8837] ? lockdep_hardirqs_on+0x9c/0x150
[ 442.247286][ T8837] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 442.247304][ T8837] ? clear_bhb_loop+0x60/0xb0
[ 442.247324][ T8837] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 442.247341][ T8837] RIP: 0033:0x7f00e119038a
[ 442.247358][ T8837] 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
[ 442.247375][ T8837] RSP: 002b:00007f00e1ff0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 442.247395][ T8837] RAX: ffffffffffffffda RBX: 00007f00e1ff0ef0 RCX: 00007f00e119038a
[ 442.247408][ T8837] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f00e1ff0eb0
[ 442.247421][ T8837] RBP: 000020000001f680 R08: 00007f00e1ff0ef0 R09: 0000000000000084
2025/09/13 13:20:18 executed programs: 490
[ 442.247433][ T8837] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 442.247444][ T8837] R13: 00007f00e1ff0eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 442.247476][ T8837]
[ 442.247500][ T8837] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 442.275189][ T8835] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 442.275212][ T8835] CPU: 1 UID: 0 PID: 8835 Comm: syz.3.494 Not tainted syzkaller #0 PREEMPT(full)
[ 442.275233][ T8835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 442.275244][ T8835] Call Trace:
[ 442.275253][ T8835]
[ 442.275261][ T8835] dump_stack_lvl+0x189/0x250
[ 442.275292][ T8835] ? __pfx_dump_stack_lvl+0x10/0x10
[ 442.275325][ T8835] ? __pfx__printk+0x10/0x10
[ 442.275355][ T8835] ? kernfs_path_from_node+0x250/0x290
[ 442.275374][ T8835] ? kernfs_path_from_node+0x2f/0x290
[ 442.275399][ T8835] sysfs_create_dir_ns+0x259/0x280
[ 442.275422][ T8835] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 442.275445][ T8835] ? do_raw_spin_unlock+0x122/0x240
[ 442.275470][ T8835] kobject_add_internal+0x59f/0xb40
[ 442.275501][ T8835] kobject_init_and_add+0x125/0x190
[ 442.275527][ T8835] ? __pfx_kobject_init_and_add+0x10/0x10
[ 442.275551][ T8835] ? __raw_spin_lock_init+0x45/0x100
[ 442.275572][ T8835] ? __init_swait_queue_head+0xa9/0x150
[ 442.275596][ T8835] gfs2_sys_fs_add+0x234/0x450
[ 442.275618][ T8835] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 442.275645][ T8835] ? is_dynamic_key+0xd6/0x1c0
[ 442.275665][ T8835] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 442.275697][ T8835] gfs2_fill_super+0x13c0/0x20d0
[ 442.275736][ T8835] ? __pfx_gfs2_fill_super+0x10/0x10
[ 442.275764][ T8835] ? sb_set_blocksize+0x104/0x180
[ 442.275785][ T8835] ? setup_bdev_super+0x4c1/0x5b0
[ 442.275812][ T8835] get_tree_bdev_flags+0x40e/0x4d0
[ 442.275836][ T8835] ? __pfx_gfs2_fill_super+0x10/0x10
[ 442.275858][ T8835] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 442.275880][ T8835] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 442.275908][ T8835] gfs2_get_tree+0x51/0x1e0
[ 442.275934][ T8835] vfs_get_tree+0x92/0x2b0
[ 442.275960][ T8835] do_new_mount+0x302/0xa10
[ 442.275983][ T8835] ? apparmor_capable+0x137/0x1b0
[ 442.276010][ T8835] ? __pfx_do_new_mount+0x10/0x10
[ 442.276035][ T8835] ? ns_capable+0x8a/0xf0
[ 442.276063][ T8835] ? kmem_cache_free+0x19a/0x690
[ 442.276097][ T8835] __se_sys_mount+0x313/0x410
[ 442.276128][ T8835] ? __pfx___se_sys_mount+0x10/0x10
[ 442.276157][ T8835] ? do_syscall_64+0xbe/0xfa0
[ 442.276175][ T8835] ? __x64_sys_mount+0x20/0xc0
[ 442.276201][ T8835] do_syscall_64+0xfa/0xfa0
[ 442.276219][ T8835] ? lockdep_hardirqs_on+0x9c/0x150
[ 442.276238][ T8835] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 442.276255][ T8835] ? clear_bhb_loop+0x60/0xb0
[ 442.276277][ T8835] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 442.276293][ T8835] RIP: 0033:0x7f5b4b19038a
[ 442.276317][ T8835] 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
[ 442.276334][ T8835] RSP: 002b:00007f5b4c0b5e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 442.276354][ T8835] RAX: ffffffffffffffda RBX: 00007f5b4c0b5ef0 RCX: 00007f5b4b19038a
[ 442.276368][ T8835] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f5b4c0b5eb0
[ 442.276381][ T8835] RBP: 000020000001f680 R08: 00007f5b4c0b5ef0 R09: 0000000000000084
[ 442.276392][ T8835] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 442.276404][ T8835] R13: 00007f5b4c0b5eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 442.276436][ T8835]
[ 442.276461][ T8835] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 442.280004][ T8837] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 442.322335][ T8835] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 442.326101][ T8839] CPU: 0 UID: 0 PID: 8839 Comm: syz.1.492 Not tainted syzkaller #0 PREEMPT(full)
[ 442.326125][ T8839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 442.326136][ T8839] Call Trace:
[ 442.326145][ T8839]
[ 442.326153][ T8839] dump_stack_lvl+0x189/0x250
[ 442.326183][ T8839] ? __pfx_dump_stack_lvl+0x10/0x10
[ 442.326204][ T8839] ? __pfx__printk+0x10/0x10
[ 442.326234][ T8839] ? kernfs_path_from_node+0x250/0x290
[ 442.326254][ T8839] ? kernfs_path_from_node+0x2f/0x290
[ 442.326278][ T8839] sysfs_create_dir_ns+0x259/0x280
[ 442.326300][ T8839] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 442.326322][ T8839] ? do_raw_spin_unlock+0x122/0x240
[ 442.326347][ T8839] kobject_add_internal+0x59f/0xb40
[ 442.326378][ T8839] kobject_init_and_add+0x125/0x190
[ 442.326405][ T8839] ? __pfx_kobject_init_and_add+0x10/0x10
[ 442.326428][ T8839] ? __raw_spin_lock_init+0x45/0x100
[ 442.326449][ T8839] ? __init_swait_queue_head+0xa9/0x150
[ 442.326473][ T8839] gfs2_sys_fs_add+0x234/0x450
[ 442.326494][ T8839] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 442.326520][ T8839] ? is_dynamic_key+0xd6/0x1c0
[ 442.326542][ T8839] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 442.326584][ T8839] gfs2_fill_super+0x13c0/0x20d0
[ 442.326623][ T8839] ? __pfx_gfs2_fill_super+0x10/0x10
[ 442.326651][ T8839] ? sb_set_blocksize+0x104/0x180
[ 442.326673][ T8839] ? setup_bdev_super+0x4c1/0x5b0
[ 442.326699][ T8839] get_tree_bdev_flags+0x40e/0x4d0
[ 442.326723][ T8839] ? __pfx_gfs2_fill_super+0x10/0x10
[ 442.326746][ T8839] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 442.326768][ T8839] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 442.326795][ T8839] gfs2_get_tree+0x51/0x1e0
[ 442.326821][ T8839] vfs_get_tree+0x92/0x2b0
[ 442.326847][ T8839] do_new_mount+0x302/0xa10
[ 442.326870][ T8839] ? apparmor_capable+0x137/0x1b0
[ 442.326897][ T8839] ? __pfx_do_new_mount+0x10/0x10
[ 442.326921][ T8839] ? ns_capable+0x8a/0xf0
[ 442.326949][ T8839] ? kmem_cache_free+0x19a/0x690
[ 442.326983][ T8839] __se_sys_mount+0x313/0x410
[ 442.327013][ T8839] ? __pfx___se_sys_mount+0x10/0x10
[ 442.327043][ T8839] ? do_syscall_64+0xbe/0xfa0
[ 442.327061][ T8839] ? __x64_sys_mount+0x20/0xc0
[ 442.327087][ T8839] do_syscall_64+0xfa/0xfa0
[ 442.327105][ T8839] ? lockdep_hardirqs_on+0x9c/0x150
[ 442.327124][ T8839] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 442.327142][ T8839] ? clear_bhb_loop+0x60/0xb0
[ 442.327163][ T8839] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 442.327180][ T8839] RIP: 0033:0x7f3eb939038a
[ 442.327195][ T8839] 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
[ 442.327208][ T8839] RSP: 002b:00007f3eba2cae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 442.327226][ T8839] RAX: ffffffffffffffda RBX: 00007f3eba2caef0 RCX: 00007f3eb939038a
[ 442.327239][ T8839] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3eba2caeb0
[ 442.327252][ T8839] RBP: 000020000001f680 R08: 00007f3eba2caef0 R09: 0000000000000084
[ 442.327265][ T8839] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 442.327277][ T8839] R13: 00007f3eba2caeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 442.327308][ T8839]
[ 442.327334][ T8839] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 443.301433][ T8839] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 444.554733][ T8853] loop0: detected capacity change from 0 to 32768
[ 444.614912][ T8853] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 444.661799][ T8853] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 444.775013][ T8853] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 444.804726][ T5971] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 444.814764][ T8855] loop3: detected capacity change from 0 to 32768
[ 444.814787][ T5971] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 444.895961][ T8855] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 444.917276][ T5971] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 102ms
[ 444.926436][ T5971] gfs2: fsid=syz:syz.0: jid=0: Done
[ 444.932237][ T8853] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 444.942407][ T8855] CPU: 1 UID: 0 PID: 8855 Comm: syz.3.498 Not tainted syzkaller #0 PREEMPT(full)
[ 444.942434][ T8855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 444.942446][ T8855] Call Trace:
[ 444.942455][ T8855]
[ 444.942464][ T8855] dump_stack_lvl+0x189/0x250
[ 444.942493][ T8855] ? __pfx_dump_stack_lvl+0x10/0x10
[ 444.942515][ T8855] ? __pfx__printk+0x10/0x10
[ 444.942545][ T8855] ? kernfs_path_from_node+0x250/0x290
[ 444.942565][ T8855] ? kernfs_path_from_node+0x2f/0x290
[ 444.942590][ T8855] sysfs_create_dir_ns+0x259/0x280
[ 444.942613][ T8855] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 444.942636][ T8855] ? do_raw_spin_unlock+0x122/0x240
[ 444.942658][ T8855] kobject_add_internal+0x59f/0xb40
[ 444.942690][ T8855] kobject_init_and_add+0x125/0x190
[ 444.942717][ T8855] ? __pfx_kobject_init_and_add+0x10/0x10
[ 444.942741][ T8855] ? __raw_spin_lock_init+0x45/0x100
[ 444.942761][ T8855] ? __init_swait_queue_head+0xa9/0x150
[ 444.942785][ T8855] gfs2_sys_fs_add+0x234/0x450
[ 444.942809][ T8855] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 444.942836][ T8855] ? is_dynamic_key+0xd6/0x1c0
[ 444.942858][ T8855] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 444.942893][ T8855] gfs2_fill_super+0x13c0/0x20d0
[ 444.942932][ T8855] ? __pfx_gfs2_fill_super+0x10/0x10
[ 444.942961][ T8855] ? sb_set_blocksize+0x104/0x180
[ 444.942984][ T8855] ? setup_bdev_super+0x4c1/0x5b0
[ 444.943011][ T8855] get_tree_bdev_flags+0x40e/0x4d0
[ 444.943043][ T8855] ? __pfx_gfs2_fill_super+0x10/0x10
[ 444.943067][ T8855] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 444.943088][ T8855] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 444.943118][ T8855] gfs2_get_tree+0x51/0x1e0
[ 444.943146][ T8855] vfs_get_tree+0x92/0x2b0
[ 444.943173][ T8855] do_new_mount+0x302/0xa10
[ 444.943196][ T8855] ? apparmor_capable+0x137/0x1b0
[ 444.943225][ T8855] ? __pfx_do_new_mount+0x10/0x10
[ 444.943250][ T8855] ? ns_capable+0x8a/0xf0
[ 444.943278][ T8855] ? kmem_cache_free+0x19a/0x690
[ 444.943314][ T8855] __se_sys_mount+0x313/0x410
[ 444.943346][ T8855] ? __pfx___se_sys_mount+0x10/0x10
[ 444.943376][ T8855] ? do_syscall_64+0xbe/0xfa0
[ 444.943395][ T8855] ? __x64_sys_mount+0x20/0xc0
[ 444.943422][ T8855] do_syscall_64+0xfa/0xfa0
[ 444.943440][ T8855] ? lockdep_hardirqs_on+0x9c/0x150
[ 444.943459][ T8855] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 444.943478][ T8855] ? clear_bhb_loop+0x60/0xb0
[ 444.943500][ T8855] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 444.943518][ T8855] RIP: 0033:0x7f5b4b19038a
[ 444.943535][ T8855] 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
[ 444.943551][ T8855] RSP: 002b:00007f5b4c0b5e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 444.943571][ T8855] RAX: ffffffffffffffda RBX: 00007f5b4c0b5ef0 RCX: 00007f5b4b19038a
[ 444.943585][ T8855] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f5b4c0b5eb0
[ 444.943599][ T8855] RBP: 000020000001f680 R08: 00007f5b4c0b5ef0 R09: 0000000000000084
[ 444.943611][ T8855] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 444.943622][ T8855] R13: 00007f5b4c0b5eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 444.943654][ T8855]
[ 444.943681][ T8855] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 445.096399][ T8857] loop1: detected capacity change from 0 to 32768
[ 445.121110][ T8855] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 445.195043][ T8859] loop2: detected capacity change from 0 to 32768
[ 445.245329][ T8861] loop4: detected capacity change from 0 to 32768
[ 445.332413][ T8861] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 445.339838][ T8861] CPU: 1 UID: 0 PID: 8861 Comm: syz.4.499 Not tainted syzkaller #0 PREEMPT(full)
[ 445.339863][ T8861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 445.339876][ T8861] Call Trace:
[ 445.339885][ T8861]
[ 445.339893][ T8861] dump_stack_lvl+0x189/0x250
[ 445.339924][ T8861] ? __pfx_dump_stack_lvl+0x10/0x10
[ 445.339946][ T8861] ? __pfx__printk+0x10/0x10
[ 445.339977][ T8861] ? kernfs_path_from_node+0x250/0x290
[ 445.339998][ T8861] ? kernfs_path_from_node+0x2f/0x290
[ 445.340023][ T8861] sysfs_create_dir_ns+0x259/0x280
[ 445.340046][ T8861] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 445.340070][ T8861] ? do_raw_spin_unlock+0x122/0x240
[ 445.340102][ T8861] kobject_add_internal+0x59f/0xb40
[ 445.340135][ T8861] kobject_init_and_add+0x125/0x190
[ 445.340163][ T8861] ? __pfx_kobject_init_and_add+0x10/0x10
[ 445.340187][ T8861] ? __raw_spin_lock_init+0x45/0x100
[ 445.340208][ T8861] ? __init_swait_queue_head+0xa9/0x150
[ 445.340233][ T8861] gfs2_sys_fs_add+0x234/0x450
[ 445.340257][ T8861] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 445.340284][ T8861] ? is_dynamic_key+0xd6/0x1c0
[ 445.340306][ T8861] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 445.340340][ T8861] gfs2_fill_super+0x13c0/0x20d0
[ 445.340382][ T8861] ? __pfx_gfs2_fill_super+0x10/0x10
[ 445.340411][ T8861] ? sb_set_blocksize+0x104/0x180
[ 445.340433][ T8861] ? setup_bdev_super+0x4c1/0x5b0
[ 445.340461][ T8861] get_tree_bdev_flags+0x40e/0x4d0
[ 445.340485][ T8861] ? __pfx_gfs2_fill_super+0x10/0x10
[ 445.340510][ T8861] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 445.340532][ T8861] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 445.340562][ T8861] gfs2_get_tree+0x51/0x1e0
[ 445.340590][ T8861] vfs_get_tree+0x92/0x2b0
[ 445.340617][ T8861] do_new_mount+0x302/0xa10
[ 445.340640][ T8861] ? apparmor_capable+0x137/0x1b0
[ 445.340668][ T8861] ? __pfx_do_new_mount+0x10/0x10
[ 445.340694][ T8861] ? ns_capable+0x8a/0xf0
[ 445.340723][ T8861] ? kmem_cache_free+0x19a/0x690
[ 445.340759][ T8861] __se_sys_mount+0x313/0x410
[ 445.340791][ T8861] ? __pfx___se_sys_mount+0x10/0x10
[ 445.340821][ T8861] ? do_syscall_64+0xbe/0xfa0
[ 445.340839][ T8861] ? __x64_sys_mount+0x20/0xc0
[ 445.340867][ T8861] do_syscall_64+0xfa/0xfa0
[ 445.340885][ T8861] ? lockdep_hardirqs_on+0x9c/0x150
[ 445.340905][ T8861] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 445.340923][ T8861] ? clear_bhb_loop+0x60/0xb0
[ 445.340945][ T8861] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 445.340963][ T8861] RIP: 0033:0x7f7eab79038a
[ 445.340983][ T8861] 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
[ 445.340996][ T8861] RSP: 002b:00007f7eac6e0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 445.341015][ T8861] RAX: ffffffffffffffda RBX: 00007f7eac6e0ef0 RCX: 00007f7eab79038a
[ 445.341027][ T8861] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f7eac6e0eb0
[ 445.341038][ T8861] RBP: 000020000001f680 R08: 00007f7eac6e0ef0 R09: 0000000000000084
[ 445.341049][ T8861] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 445.341059][ T8861] R13: 00007f7eac6e0eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 445.341102][ T8861]
[ 445.360155][ T8857] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 445.613510][ T8861] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 445.687013][ T8859] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 445.694880][ T8857] CPU: 1 UID: 0 PID: 8857 Comm: syz.1.500 Not tainted syzkaller #0 PREEMPT(full)
[ 445.694905][ T8857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 445.694916][ T8857] Call Trace:
[ 445.694924][ T8857]
[ 445.694932][ T8857] dump_stack_lvl+0x189/0x250
[ 445.694969][ T8857] ? __pfx_dump_stack_lvl+0x10/0x10
[ 445.694991][ T8857] ? __pfx__printk+0x10/0x10
[ 445.695019][ T8857] ? kernfs_path_from_node+0x250/0x290
[ 445.695038][ T8857] ? kernfs_path_from_node+0x2f/0x290
[ 445.695060][ T8857] sysfs_create_dir_ns+0x259/0x280
[ 445.695083][ T8857] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 445.695103][ T8857] ? do_raw_spin_unlock+0x122/0x240
[ 445.695126][ T8857] kobject_add_internal+0x59f/0xb40
[ 445.695156][ T8857] kobject_init_and_add+0x125/0x190
[ 445.695180][ T8857] ? __pfx_kobject_init_and_add+0x10/0x10
[ 445.695202][ T8857] ? __raw_spin_lock_init+0x45/0x100
[ 445.695223][ T8857] ? __init_swait_queue_head+0xa9/0x150
[ 445.695248][ T8857] gfs2_sys_fs_add+0x234/0x450
[ 445.695271][ T8857] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 445.695298][ T8857] ? is_dynamic_key+0xd6/0x1c0
[ 445.695320][ T8857] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 445.695356][ T8857] gfs2_fill_super+0x13c0/0x20d0
[ 445.695397][ T8857] ? __pfx_gfs2_fill_super+0x10/0x10
[ 445.695427][ T8857] ? sb_set_blocksize+0x104/0x180
[ 445.695449][ T8857] ? setup_bdev_super+0x4c1/0x5b0
[ 445.695477][ T8857] get_tree_bdev_flags+0x40e/0x4d0
[ 445.695500][ T8857] ? __pfx_gfs2_fill_super+0x10/0x10
[ 445.695524][ T8857] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 445.695546][ T8857] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 445.695575][ T8857] gfs2_get_tree+0x51/0x1e0
[ 445.695603][ T8857] vfs_get_tree+0x92/0x2b0
[ 445.695629][ T8857] do_new_mount+0x302/0xa10
[ 445.695651][ T8857] ? apparmor_capable+0x137/0x1b0
[ 445.695679][ T8857] ? __pfx_do_new_mount+0x10/0x10
[ 445.695704][ T8857] ? ns_capable+0x8a/0xf0
[ 445.695732][ T8857] ? kmem_cache_free+0x19a/0x690
[ 445.695768][ T8857] __se_sys_mount+0x313/0x410
[ 445.695800][ T8857] ? __pfx___se_sys_mount+0x10/0x10
[ 445.695831][ T8857] ? do_syscall_64+0xbe/0xfa0
[ 445.695849][ T8857] ? __x64_sys_mount+0x20/0xc0
[ 445.695877][ T8857] do_syscall_64+0xfa/0xfa0
[ 445.695895][ T8857] ? lockdep_hardirqs_on+0x9c/0x150
[ 445.695914][ T8857] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 445.695933][ T8857] ? clear_bhb_loop+0x60/0xb0
[ 445.695955][ T8857] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 445.695980][ T8857] RIP: 0033:0x7f3eb939038a
[ 445.695998][ T8857] 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
[ 445.696014][ T8857] RSP: 002b:00007f3eba2cae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 445.696034][ T8857] RAX: ffffffffffffffda RBX: 00007f3eba2caef0 RCX: 00007f3eb939038a
[ 445.696048][ T8857] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3eba2caeb0
[ 445.696062][ T8857] RBP: 000020000001f680 R08: 00007f3eba2caef0 R09: 0000000000000084
[ 445.696074][ T8857] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 445.696086][ T8857] R13: 00007f3eba2caeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 445.696119][ T8857]
[ 445.696147][ T8857] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 445.771157][ T8861] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 445.776845][ T8859] CPU: 1 UID: 0 PID: 8859 Comm: syz.2.501 Not tainted syzkaller #0 PREEMPT(full)
[ 445.776870][ T8859] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 445.776882][ T8859] Call Trace:
[ 445.776890][ T8859]
[ 445.776898][ T8859] dump_stack_lvl+0x189/0x250
[ 445.776930][ T8859] ? __pfx_dump_stack_lvl+0x10/0x10
[ 445.776961][ T8859] ? __pfx__printk+0x10/0x10
[ 445.776999][ T8859] ? kernfs_path_from_node+0x250/0x290
[ 445.777019][ T8859] ? kernfs_path_from_node+0x2f/0x290
[ 445.777042][ T8859] sysfs_create_dir_ns+0x259/0x280
[ 445.777065][ T8859] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 445.777087][ T8859] ? do_raw_spin_unlock+0x122/0x240
[ 445.777111][ T8859] kobject_add_internal+0x59f/0xb40
[ 445.777142][ T8859] kobject_init_and_add+0x125/0x190
[ 445.777169][ T8859] ? __pfx_kobject_init_and_add+0x10/0x10
[ 445.777192][ T8859] ? __raw_spin_lock_init+0x45/0x100
[ 445.777213][ T8859] ? __init_swait_queue_head+0xa9/0x150
[ 445.777236][ T8859] gfs2_sys_fs_add+0x234/0x450
[ 445.777258][ T8859] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 445.777284][ T8859] ? is_dynamic_key+0xd6/0x1c0
[ 445.777305][ T8859] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 445.777340][ T8859] gfs2_fill_super+0x13c0/0x20d0
[ 445.777379][ T8859] ? __pfx_gfs2_fill_super+0x10/0x10
[ 445.777407][ T8859] ? sb_set_blocksize+0x104/0x180
[ 445.777429][ T8859] ? setup_bdev_super+0x4c1/0x5b0
[ 445.777456][ T8859] get_tree_bdev_flags+0x40e/0x4d0
[ 445.777480][ T8859] ? __pfx_gfs2_fill_super+0x10/0x10
[ 445.777502][ T8859] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 445.777523][ T8859] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 445.777551][ T8859] gfs2_get_tree+0x51/0x1e0
[ 445.777578][ T8859] vfs_get_tree+0x92/0x2b0
[ 445.777603][ T8859] do_new_mount+0x302/0xa10
[ 445.777627][ T8859] ? apparmor_capable+0x137/0x1b0
[ 445.777654][ T8859] ? __pfx_do_new_mount+0x10/0x10
[ 445.777678][ T8859] ? ns_capable+0x8a/0xf0
[ 445.777704][ T8859] ? kmem_cache_free+0x19a/0x690
[ 445.777740][ T8859] __se_sys_mount+0x313/0x410
[ 445.777771][ T8859] ? __pfx___se_sys_mount+0x10/0x10
[ 445.777800][ T8859] ? do_syscall_64+0xbe/0xfa0
[ 445.777817][ T8859] ? __x64_sys_mount+0x20/0xc0
[ 445.777844][ T8859] do_syscall_64+0xfa/0xfa0
[ 445.777867][ T8859] ? lockdep_hardirqs_on+0x9c/0x150
[ 445.777885][ T8859] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 445.777903][ T8859] ? clear_bhb_loop+0x60/0xb0
[ 445.777924][ T8859] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 445.777941][ T8859] RIP: 0033:0x7f00e119038a
[ 445.777959][ T8859] 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
[ 445.777979][ T8859] RSP: 002b:00007f00e1ff0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 445.777999][ T8859] RAX: ffffffffffffffda RBX: 00007f00e1ff0ef0 RCX: 00007f00e119038a
[ 445.778012][ T8859] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f00e1ff0eb0
[ 445.778025][ T8859] RBP: 000020000001f680 R08: 00007f00e1ff0ef0 R09: 0000000000000084
[ 445.778038][ T8859] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 445.778049][ T8859] R13: 00007f00e1ff0eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 445.778080][ T8859]
[ 445.778135][ T8859] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 446.057873][ T8857] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 446.399770][ T8859] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 447.813848][ T8876] loop3: detected capacity change from 0 to 32768
[ 447.875007][ T8876] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 447.916252][ T8879] loop0: detected capacity change from 0 to 32768
[ 447.936859][ T8876] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 447.968634][ T8877] loop1: detected capacity change from 0 to 32768
[ 447.973701][ T8879] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 447.998274][ T8877] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 448.011195][ T8879] CPU: 1 UID: 0 PID: 8879 Comm: syz.0.502 Not tainted syzkaller #0 PREEMPT(full)
[ 448.011221][ T8879] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 448.011232][ T8879] Call Trace:
[ 448.011240][ T8879]
[ 448.011249][ T8879] dump_stack_lvl+0x189/0x250
[ 448.011279][ T8879] ? __pfx_dump_stack_lvl+0x10/0x10
[ 448.011300][ T8879] ? __pfx__printk+0x10/0x10
[ 448.011328][ T8879] ? kernfs_path_from_node+0x250/0x290
[ 448.011348][ T8879] ? kernfs_path_from_node+0x2f/0x290
[ 448.011373][ T8879] sysfs_create_dir_ns+0x259/0x280
[ 448.011397][ T8879] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 448.011420][ T8879] ? do_raw_spin_unlock+0x122/0x240
[ 448.011444][ T8879] kobject_add_internal+0x59f/0xb40
[ 448.011475][ T8879] kobject_init_and_add+0x125/0x190
[ 448.011500][ T8879] ? __pfx_kobject_init_and_add+0x10/0x10
[ 448.011522][ T8879] ? __raw_spin_lock_init+0x45/0x100
[ 448.011543][ T8879] ? __init_swait_queue_head+0xa9/0x150
[ 448.011566][ T8879] gfs2_sys_fs_add+0x234/0x450
[ 448.011586][ T8879] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 448.011612][ T8879] ? is_dynamic_key+0xd6/0x1c0
[ 448.011632][ T8879] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 448.011664][ T8879] gfs2_fill_super+0x13c0/0x20d0
[ 448.011701][ T8879] ? __pfx_gfs2_fill_super+0x10/0x10
[ 448.011728][ T8879] ? sb_set_blocksize+0x104/0x180
[ 448.011749][ T8879] ? setup_bdev_super+0x4c1/0x5b0
[ 448.011777][ T8879] get_tree_bdev_flags+0x40e/0x4d0
[ 448.011799][ T8879] ? __pfx_gfs2_fill_super+0x10/0x10
[ 448.011822][ T8879] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 448.011843][ T8879] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 448.011873][ T8879] gfs2_get_tree+0x51/0x1e0
[ 448.011899][ T8879] vfs_get_tree+0x92/0x2b0
[ 448.011925][ T8879] do_new_mount+0x302/0xa10
[ 448.011947][ T8879] ? apparmor_capable+0x137/0x1b0
[ 448.011974][ T8879] ? __pfx_do_new_mount+0x10/0x10
[ 448.011999][ T8879] ? ns_capable+0x8a/0xf0
[ 448.012025][ T8879] ? kmem_cache_free+0x19a/0x690
[ 448.012068][ T8879] __se_sys_mount+0x313/0x410
[ 448.012098][ T8879] ? __pfx___se_sys_mount+0x10/0x10
[ 448.012126][ T8879] ? do_syscall_64+0xbe/0xfa0
[ 448.012145][ T8879] ? __x64_sys_mount+0x20/0xc0
[ 448.012173][ T8879] do_syscall_64+0xfa/0xfa0
[ 448.012191][ T8879] ? lockdep_hardirqs_on+0x9c/0x150
[ 448.012210][ T8879] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 448.012228][ T8879] ? clear_bhb_loop+0x60/0xb0
[ 448.012249][ T8879] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 448.012267][ T8879] RIP: 0033:0x7fb5c599038a
[ 448.012285][ T8879] 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
[ 448.012302][ T8879] RSP: 002b:00007fb5c67c3e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 448.012322][ T8879] RAX: ffffffffffffffda RBX: 00007fb5c67c3ef0 RCX: 00007fb5c599038a
[ 448.012336][ T8879] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb5c67c3eb0
[ 448.012348][ T8879] RBP: 000020000001f680 R08: 00007fb5c67c3ef0 R09: 0000000000000084
[ 448.012360][ T8879] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 448.012372][ T8879] R13: 00007fb5c67c3eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 448.012403][ T8879]
[ 448.012429][ T8879] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 448.083411][ T8877] CPU: 0 UID: 0 PID: 8877 Comm: syz.1.504 Not tainted syzkaller #0 PREEMPT(full)
[ 448.083438][ T8877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 448.083450][ T8877] Call Trace:
[ 448.083458][ T8877]
[ 448.083466][ T8877] dump_stack_lvl+0x189/0x250
[ 448.083496][ T8877] ? __pfx_dump_stack_lvl+0x10/0x10
[ 448.083518][ T8877] ? __pfx__printk+0x10/0x10
[ 448.083548][ T8877] ? kernfs_path_from_node+0x250/0x290
[ 448.083567][ T8877] ? kernfs_path_from_node+0x2f/0x290
[ 448.083591][ T8877] sysfs_create_dir_ns+0x259/0x280
[ 448.083614][ T8877] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 448.083633][ T8877] ? preempt_schedule_thunk+0x16/0x30
[ 448.083658][ T8877] kobject_add_internal+0x59f/0xb40
[ 448.083689][ T8877] kobject_init_and_add+0x125/0x190
[ 448.083716][ T8877] ? __pfx_kobject_init_and_add+0x10/0x10
[ 448.083739][ T8877] ? __raw_spin_lock_init+0x45/0x100
[ 448.083761][ T8877] ? __init_swait_queue_head+0xa9/0x150
[ 448.083792][ T8877] gfs2_sys_fs_add+0x234/0x450
[ 448.083815][ T8877] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 448.083841][ T8877] ? is_dynamic_key+0xd6/0x1c0
[ 448.083862][ T8877] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 448.083898][ T8877] gfs2_fill_super+0x13c0/0x20d0
[ 448.083937][ T8877] ? __pfx_gfs2_fill_super+0x10/0x10
[ 448.083965][ T8877] ? sb_set_blocksize+0x104/0x180
[ 448.083986][ T8877] ? setup_bdev_super+0x4c1/0x5b0
[ 448.084013][ T8877] get_tree_bdev_flags+0x40e/0x4d0
[ 448.084036][ T8877] ? __pfx_gfs2_fill_super+0x10/0x10
[ 448.084059][ T8877] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 448.084080][ T8877] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 448.084109][ T8877] gfs2_get_tree+0x51/0x1e0
[ 448.084135][ T8877] vfs_get_tree+0x92/0x2b0
[ 448.084161][ T8877] do_new_mount+0x302/0xa10
[ 448.084184][ T8877] ? apparmor_capable+0x137/0x1b0
[ 448.084212][ T8877] ? __pfx_do_new_mount+0x10/0x10
[ 448.084237][ T8877] ? ns_capable+0x8a/0xf0
[ 448.084263][ T8877] ? kmem_cache_free+0x19a/0x690
[ 448.084298][ T8877] __se_sys_mount+0x313/0x410
[ 448.084333][ T8877] ? __pfx___se_sys_mount+0x10/0x10
[ 448.084363][ T8877] ? do_syscall_64+0xbe/0xfa0
[ 448.084380][ T8877] ? __x64_sys_mount+0x20/0xc0
[ 448.084407][ T8877] do_syscall_64+0xfa/0xfa0
[ 448.084424][ T8877] ? lockdep_hardirqs_on+0x9c/0x150
[ 448.084443][ T8877] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 448.084461][ T8877] ? clear_bhb_loop+0x60/0xb0
[ 448.084482][ T8877] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 448.084499][ T8877] RIP: 0033:0x7f3eb939038a
[ 448.084516][ T8877] 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
[ 448.084532][ T8877] RSP: 002b:00007f3eba2cae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 448.084551][ T8877] RAX: ffffffffffffffda RBX: 00007f3eba2caef0 RCX: 00007f3eb939038a
[ 448.084565][ T8877] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3eba2caeb0
[ 448.084577][ T8877] RBP: 000020000001f680 R08: 00007f3eba2caef0 R09: 0000000000000084
[ 448.084589][ T8877] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 448.084601][ T8877] R13: 00007f3eba2caeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 448.084633][ T8877]
[ 448.084658][ T8877] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 448.152305][ T8876] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 448.223314][ T8877] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 448.224726][ T8879] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 448.261542][ T8883] loop4: detected capacity change from 0 to 32768
[ 448.332470][ T8881] loop2: detected capacity change from 0 to 32768
[ 448.486209][ T5971] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 448.533781][ T8883] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 448.542608][ T5971] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 448.756502][ T8883] CPU: 1 UID: 0 PID: 8883 Comm: syz.4.506 Not tainted syzkaller #0 PREEMPT(full)
[ 448.756529][ T8883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 448.756541][ T8883] Call Trace:
[ 448.756549][ T8883]
[ 448.756558][ T8883] dump_stack_lvl+0x189/0x250
[ 448.756587][ T8883] ? __pfx_dump_stack_lvl+0x10/0x10
[ 448.756607][ T8883] ? __pfx__printk+0x10/0x10
[ 448.756636][ T8883] ? kernfs_path_from_node+0x250/0x290
[ 448.756657][ T8883] ? kernfs_path_from_node+0x2f/0x290
[ 448.756680][ T8883] sysfs_create_dir_ns+0x259/0x280
[ 448.756704][ T8883] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 448.756726][ T8883] ? do_raw_spin_unlock+0x122/0x240
[ 448.756758][ T8883] kobject_add_internal+0x59f/0xb40
[ 448.756787][ T8883] kobject_init_and_add+0x125/0x190
[ 448.756814][ T8883] ? __pfx_kobject_init_and_add+0x10/0x10
[ 448.756837][ T8883] ? __raw_spin_lock_init+0x45/0x100
[ 448.756859][ T8883] ? __init_swait_queue_head+0xa9/0x150
[ 448.756883][ T8883] gfs2_sys_fs_add+0x234/0x450
[ 448.756906][ T8883] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 448.756939][ T8883] ? is_dynamic_key+0xd6/0x1c0
[ 448.756959][ T8883] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 448.756993][ T8883] gfs2_fill_super+0x13c0/0x20d0
[ 448.757031][ T8883] ? __pfx_gfs2_fill_super+0x10/0x10
[ 448.757059][ T8883] ? sb_set_blocksize+0x104/0x180
[ 448.757080][ T8883] ? setup_bdev_super+0x4c1/0x5b0
[ 448.757107][ T8883] get_tree_bdev_flags+0x40e/0x4d0
[ 448.757131][ T8883] ? __pfx_gfs2_fill_super+0x10/0x10
[ 448.757154][ T8883] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 448.757176][ T8883] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 448.757205][ T8883] gfs2_get_tree+0x51/0x1e0
[ 448.757232][ T8883] vfs_get_tree+0x92/0x2b0
[ 448.757264][ T8883] do_new_mount+0x302/0xa10
[ 448.757288][ T8883] ? apparmor_capable+0x137/0x1b0
[ 448.757316][ T8883] ? __pfx_do_new_mount+0x10/0x10
[ 448.757342][ T8883] ? ns_capable+0x8a/0xf0
[ 448.757370][ T8883] ? kmem_cache_free+0x19a/0x690
[ 448.757406][ T8883] __se_sys_mount+0x313/0x410
[ 448.757438][ T8883] ? __pfx___se_sys_mount+0x10/0x10
[ 448.757468][ T8883] ? do_syscall_64+0xbe/0xfa0
[ 448.757487][ T8883] ? __x64_sys_mount+0x20/0xc0
[ 448.757515][ T8883] do_syscall_64+0xfa/0xfa0
[ 448.757533][ T8883] ? lockdep_hardirqs_on+0x9c/0x150
[ 448.757553][ T8883] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 448.757571][ T8883] ? clear_bhb_loop+0x60/0xb0
[ 448.757593][ T8883] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 448.757611][ T8883] RIP: 0033:0x7f7eab79038a
[ 448.757629][ T8883] 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
[ 448.757644][ T8883] RSP: 002b:00007f7eac6e0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 448.757664][ T8883] RAX: ffffffffffffffda RBX: 00007f7eac6e0ef0 RCX: 00007f7eab79038a
[ 448.757677][ T8883] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f7eac6e0eb0
[ 448.757696][ T8883] RBP: 000020000001f680 R08: 00007f7eac6e0ef0 R09: 0000000000000084
[ 448.757709][ T8883] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 448.757720][ T8883] R13: 00007f7eac6e0eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 448.757752][ T8883]
[ 448.757781][ T8883] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 448.902207][ T8881] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 448.979864][ T8883] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 449.106616][ T8881] CPU: 1 UID: 0 PID: 8881 Comm: syz.2.505 Not tainted syzkaller #0 PREEMPT(full)
[ 449.106642][ T8881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 449.106653][ T8881] Call Trace:
[ 449.106661][ T8881]
[ 449.106669][ T8881] dump_stack_lvl+0x189/0x250
[ 449.106698][ T8881] ? __pfx_dump_stack_lvl+0x10/0x10
[ 449.106718][ T8881] ? __pfx__printk+0x10/0x10
[ 449.106747][ T8881] ? kernfs_path_from_node+0x250/0x290
[ 449.106767][ T8881] ? kernfs_path_from_node+0x2f/0x290
[ 449.106792][ T8881] sysfs_create_dir_ns+0x259/0x280
[ 449.106816][ T8881] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 449.106839][ T8881] ? do_raw_spin_unlock+0x122/0x240
[ 449.106865][ T8881] kobject_add_internal+0x59f/0xb40
[ 449.106897][ T8881] kobject_init_and_add+0x125/0x190
[ 449.106932][ T8881] ? __pfx_kobject_init_and_add+0x10/0x10
[ 449.106956][ T8881] ? __raw_spin_lock_init+0x45/0x100
[ 449.106977][ T8881] ? __init_swait_queue_head+0xa9/0x150
[ 449.107000][ T8881] gfs2_sys_fs_add+0x234/0x450
[ 449.107024][ T8881] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 449.107051][ T8881] ? is_dynamic_key+0xd6/0x1c0
[ 449.107073][ T8881] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 449.107110][ T8881] gfs2_fill_super+0x13c0/0x20d0
[ 449.107151][ T8881] ? __pfx_gfs2_fill_super+0x10/0x10
[ 449.107179][ T8881] ? sb_set_blocksize+0x104/0x180
[ 449.107202][ T8881] ? setup_bdev_super+0x4c1/0x5b0
[ 449.107230][ T8881] get_tree_bdev_flags+0x40e/0x4d0
[ 449.107254][ T8881] ? __pfx_gfs2_fill_super+0x10/0x10
[ 449.107278][ T8881] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 449.107299][ T8881] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 449.107329][ T8881] gfs2_get_tree+0x51/0x1e0
2025/09/13 13:20:24 executed programs: 500
[ 449.107356][ T8881] vfs_get_tree+0x92/0x2b0
[ 449.107382][ T8881] do_new_mount+0x302/0xa10
[ 449.107405][ T8881] ? apparmor_capable+0x137/0x1b0
[ 449.107433][ T8881] ? __pfx_do_new_mount+0x10/0x10
[ 449.107458][ T8881] ? ns_capable+0x8a/0xf0
[ 449.107486][ T8881] ? kmem_cache_free+0x19a/0x690
[ 449.107519][ T8881] __se_sys_mount+0x313/0x410
[ 449.107548][ T8881] ? __pfx___se_sys_mount+0x10/0x10
[ 449.107575][ T8881] ? do_syscall_64+0xbe/0xfa0
[ 449.107593][ T8881] ? __x64_sys_mount+0x20/0xc0
[ 449.107619][ T8881] do_syscall_64+0xfa/0xfa0
[ 449.107637][ T8881] ? lockdep_hardirqs_on+0x9c/0x150
[ 449.107655][ T8881] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 449.107672][ T8881] ? clear_bhb_loop+0x60/0xb0
[ 449.107694][ T8881] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 449.107712][ T8881] RIP: 0033:0x7f00e119038a
[ 449.107730][ T8881] 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
[ 449.107744][ T8881] RSP: 002b:00007f00e1ff0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 449.107764][ T8881] RAX: ffffffffffffffda RBX: 00007f00e1ff0ef0 RCX: 00007f00e119038a
[ 449.107777][ T8881] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f00e1ff0eb0
[ 449.107791][ T8881] RBP: 000020000001f680 R08: 00007f00e1ff0ef0 R09: 0000000000000084
[ 449.107804][ T8881] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 449.107816][ T8881] R13: 00007f00e1ff0eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 449.107847][ T8881]
[ 449.107875][ T8881] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 449.511064][ T8881] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 449.836444][ T5971] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 1293ms
[ 449.886740][ T5971] gfs2: fsid=syz:syz.0: jid=0: Done
[ 449.910087][ T8876] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 449.920871][ T8876] gfs2: fsid=syz:syz.0: can't create logd thread: -4
[ 450.322583][ T8895] loop1: detected capacity change from 0 to 32768
[ 450.413581][ T8895] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 450.451526][ T8895] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 450.522270][ T8895] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 1ms
[ 450.580435][ T5971] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 450.600695][ T5971] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 450.749611][ T5971] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 148ms
[ 450.765853][ T5971] gfs2: fsid=syz:syz.0: jid=0: Done
[ 450.772626][ T8895] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 451.320541][ T8897] loop0: detected capacity change from 0 to 32768
[ 451.396382][ T8897] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 451.410263][ T8900] loop2: detected capacity change from 0 to 32768
[ 451.424048][ T8897] CPU: 0 UID: 0 PID: 8897 Comm: syz.0.509 Not tainted syzkaller #0 PREEMPT(full)
[ 451.424075][ T8897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 451.424087][ T8897] Call Trace:
[ 451.424096][ T8897]
[ 451.424105][ T8897] dump_stack_lvl+0x189/0x250
[ 451.424136][ T8897] ? __pfx_dump_stack_lvl+0x10/0x10
[ 451.424158][ T8897] ? __pfx__printk+0x10/0x10
[ 451.424189][ T8897] ? kernfs_path_from_node+0x250/0x290
[ 451.424208][ T8897] ? kernfs_path_from_node+0x2f/0x290
[ 451.424232][ T8897] sysfs_create_dir_ns+0x259/0x280
[ 451.424255][ T8897] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 451.424278][ T8897] ? do_raw_spin_unlock+0x122/0x240
[ 451.424303][ T8897] kobject_add_internal+0x59f/0xb40
[ 451.424333][ T8897] kobject_init_and_add+0x125/0x190
[ 451.424361][ T8897] ? __pfx_kobject_init_and_add+0x10/0x10
[ 451.424385][ T8897] ? __raw_spin_lock_init+0x45/0x100
[ 451.424406][ T8897] ? __init_swait_queue_head+0xa9/0x150
[ 451.424430][ T8897] gfs2_sys_fs_add+0x234/0x450
[ 451.424454][ T8897] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 451.424480][ T8897] ? is_dynamic_key+0xd6/0x1c0
[ 451.424502][ T8897] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 451.424539][ T8897] gfs2_fill_super+0x13c0/0x20d0
[ 451.424581][ T8897] ? __pfx_gfs2_fill_super+0x10/0x10
[ 451.424609][ T8897] ? sb_set_blocksize+0x104/0x180
[ 451.424631][ T8897] ? setup_bdev_super+0x4c1/0x5b0
[ 451.424658][ T8897] get_tree_bdev_flags+0x40e/0x4d0
[ 451.424683][ T8897] ? __pfx_gfs2_fill_super+0x10/0x10
[ 451.424706][ T8897] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 451.424728][ T8897] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 451.424763][ T8897] gfs2_get_tree+0x51/0x1e0
[ 451.424791][ T8897] vfs_get_tree+0x92/0x2b0
[ 451.424818][ T8897] do_new_mount+0x302/0xa10
[ 451.424841][ T8897] ? apparmor_capable+0x137/0x1b0
[ 451.424869][ T8897] ? __pfx_do_new_mount+0x10/0x10
[ 451.424895][ T8897] ? ns_capable+0x8a/0xf0
[ 451.424922][ T8897] ? kmem_cache_free+0x19a/0x690
[ 451.424959][ T8897] __se_sys_mount+0x313/0x410
[ 451.424991][ T8897] ? __pfx___se_sys_mount+0x10/0x10
[ 451.425021][ T8897] ? do_syscall_64+0xbe/0xfa0
[ 451.425039][ T8897] ? __x64_sys_mount+0x20/0xc0
[ 451.425067][ T8897] do_syscall_64+0xfa/0xfa0
[ 451.425085][ T8897] ? lockdep_hardirqs_on+0x9c/0x150
[ 451.425105][ T8897] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 451.425123][ T8897] ? clear_bhb_loop+0x60/0xb0
[ 451.425145][ T8897] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 451.425163][ T8897] RIP: 0033:0x7fb5c599038a
[ 451.425181][ T8897] 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
[ 451.425197][ T8897] RSP: 002b:00007fb5c67c3e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 451.425217][ T8897] RAX: ffffffffffffffda RBX: 00007fb5c67c3ef0 RCX: 00007fb5c599038a
[ 451.425231][ T8897] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb5c67c3eb0
[ 451.425244][ T8897] RBP: 000020000001f680 R08: 00007fb5c67c3ef0 R09: 0000000000000084
[ 451.425257][ T8897] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 451.425269][ T8897] R13: 00007fb5c67c3eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 451.425302][ T8897]
[ 451.425329][ T8897] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 451.491721][ T8902] loop4: detected capacity change from 0 to 32768
[ 451.663084][ T8906] loop3: detected capacity change from 0 to 32768
[ 451.705065][ T8897] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 451.710043][ T8900] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 451.817833][ T8902] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 451.822795][ T8900] CPU: 1 UID: 0 PID: 8900 Comm: syz.2.508 Not tainted syzkaller #0 PREEMPT(full)
[ 451.822822][ T8900] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 451.822834][ T8900] Call Trace:
[ 451.822842][ T8900]
[ 451.822851][ T8900] dump_stack_lvl+0x189/0x250
[ 451.822881][ T8900] ? __pfx_dump_stack_lvl+0x10/0x10
[ 451.822902][ T8900] ? __pfx__printk+0x10/0x10
[ 451.822932][ T8900] ? kernfs_path_from_node+0x250/0x290
[ 451.822951][ T8900] ? kernfs_path_from_node+0x2f/0x290
[ 451.822974][ T8900] sysfs_create_dir_ns+0x259/0x280
[ 451.822997][ T8900] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 451.823019][ T8900] ? do_raw_spin_unlock+0x122/0x240
[ 451.823044][ T8900] kobject_add_internal+0x59f/0xb40
[ 451.823073][ T8900] kobject_init_and_add+0x125/0x190
[ 451.823100][ T8900] ? __pfx_kobject_init_and_add+0x10/0x10
[ 451.823123][ T8900] ? __raw_spin_lock_init+0x45/0x100
[ 451.823143][ T8900] ? __init_swait_queue_head+0xa9/0x150
[ 451.823166][ T8900] gfs2_sys_fs_add+0x234/0x450
[ 451.823189][ T8900] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 451.823215][ T8900] ? is_dynamic_key+0xd6/0x1c0
[ 451.823236][ T8900] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 451.823270][ T8900] gfs2_fill_super+0x13c0/0x20d0
[ 451.823310][ T8900] ? __pfx_gfs2_fill_super+0x10/0x10
[ 451.823337][ T8900] ? sb_set_blocksize+0x104/0x180
[ 451.823360][ T8900] ? setup_bdev_super+0x4c1/0x5b0
[ 451.823387][ T8900] get_tree_bdev_flags+0x40e/0x4d0
[ 451.823410][ T8900] ? __pfx_gfs2_fill_super+0x10/0x10
[ 451.823433][ T8900] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 451.823454][ T8900] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 451.823482][ T8900] gfs2_get_tree+0x51/0x1e0
[ 451.823515][ T8900] vfs_get_tree+0x92/0x2b0
[ 451.823541][ T8900] do_new_mount+0x302/0xa10
[ 451.823564][ T8900] ? apparmor_capable+0x137/0x1b0
[ 451.823592][ T8900] ? __pfx_do_new_mount+0x10/0x10
[ 451.823616][ T8900] ? ns_capable+0x8a/0xf0
[ 451.823642][ T8900] ? kmem_cache_free+0x19a/0x690
[ 451.823677][ T8900] __se_sys_mount+0x313/0x410
[ 451.823708][ T8900] ? __pfx___se_sys_mount+0x10/0x10
[ 451.823737][ T8900] ? do_syscall_64+0xbe/0xfa0
[ 451.823754][ T8900] ? __x64_sys_mount+0x20/0xc0
[ 451.823781][ T8900] do_syscall_64+0xfa/0xfa0
[ 451.823799][ T8900] ? lockdep_hardirqs_on+0x9c/0x150
[ 451.823817][ T8900] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 451.823835][ T8900] ? clear_bhb_loop+0x60/0xb0
[ 451.823856][ T8900] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 451.823874][ T8900] RIP: 0033:0x7f00e119038a
[ 451.823890][ T8900] 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
[ 451.823906][ T8900] RSP: 002b:00007f00e1ff0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 451.823926][ T8900] RAX: ffffffffffffffda RBX: 00007f00e1ff0ef0 RCX: 00007f00e119038a
[ 451.823940][ T8900] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f00e1ff0eb0
[ 451.823953][ T8900] RBP: 000020000001f680 R08: 00007f00e1ff0ef0 R09: 0000000000000084
[ 451.823965][ T8900] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 451.823977][ T8900] R13: 00007f00e1ff0eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 451.824008][ T8900]
[ 451.824034][ T8900] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 451.825428][ T8902] CPU: 0 UID: 0 PID: 8902 Comm: syz.4.510 Not tainted syzkaller #0 PREEMPT(full)
[ 451.825451][ T8902] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 451.825462][ T8902] Call Trace:
[ 451.825469][ T8902]
[ 451.825477][ T8902] dump_stack_lvl+0x189/0x250
[ 451.825503][ T8902] ? __pfx_dump_stack_lvl+0x10/0x10
[ 451.825524][ T8902] ? __pfx__printk+0x10/0x10
[ 451.825554][ T8902] ? kernfs_path_from_node+0x250/0x290
[ 451.825573][ T8902] ? kernfs_path_from_node+0x2f/0x290
[ 451.825598][ T8902] sysfs_create_dir_ns+0x259/0x280
[ 451.825622][ T8902] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 451.825645][ T8902] ? do_raw_spin_unlock+0x122/0x240
[ 451.825670][ T8902] kobject_add_internal+0x59f/0xb40
[ 451.825699][ T8902] kobject_init_and_add+0x125/0x190
[ 451.825723][ T8902] ? __pfx_kobject_init_and_add+0x10/0x10
[ 451.825751][ T8902] ? __raw_spin_lock_init+0x45/0x100
[ 451.825773][ T8902] ? __init_swait_queue_head+0xa9/0x150
[ 451.825796][ T8902] gfs2_sys_fs_add+0x234/0x450
[ 451.825819][ T8902] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 451.825844][ T8902] ? is_dynamic_key+0xd6/0x1c0
[ 451.825866][ T8902] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 451.825900][ T8902] gfs2_fill_super+0x13c0/0x20d0
[ 451.825940][ T8902] ? __pfx_gfs2_fill_super+0x10/0x10
[ 451.825968][ T8902] ? sb_set_blocksize+0x104/0x180
[ 451.825989][ T8902] ? setup_bdev_super+0x4c1/0x5b0
[ 451.826017][ T8902] get_tree_bdev_flags+0x40e/0x4d0
[ 451.826040][ T8902] ? __pfx_gfs2_fill_super+0x10/0x10
[ 451.826063][ T8902] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 451.826083][ T8902] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 451.826112][ T8902] gfs2_get_tree+0x51/0x1e0
[ 451.826138][ T8902] vfs_get_tree+0x92/0x2b0
[ 451.826164][ T8902] do_new_mount+0x302/0xa10
[ 451.826186][ T8902] ? apparmor_capable+0x137/0x1b0
[ 451.826213][ T8902] ? __pfx_do_new_mount+0x10/0x10
[ 451.826238][ T8902] ? ns_capable+0x8a/0xf0
[ 451.826265][ T8902] ? kmem_cache_free+0x19a/0x690
[ 451.826299][ T8902] __se_sys_mount+0x313/0x410
[ 451.826330][ T8902] ? __pfx___se_sys_mount+0x10/0x10
[ 451.826359][ T8902] ? do_syscall_64+0xbe/0xfa0
[ 451.826376][ T8902] ? __x64_sys_mount+0x20/0xc0
[ 451.826403][ T8902] do_syscall_64+0xfa/0xfa0
[ 451.826420][ T8902] ? lockdep_hardirqs_on+0x9c/0x150
[ 451.826439][ T8902] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 451.826456][ T8902] ? clear_bhb_loop+0x60/0xb0
[ 451.826477][ T8902] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 451.826494][ T8902] RIP: 0033:0x7f7eab79038a
[ 451.826510][ T8902] 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
[ 451.826525][ T8902] RSP: 002b:00007f7eac6e0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 451.826544][ T8902] RAX: ffffffffffffffda RBX: 00007f7eac6e0ef0 RCX: 00007f7eab79038a
[ 451.826557][ T8902] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f7eac6e0eb0
[ 451.826570][ T8902] RBP: 000020000001f680 R08: 00007f7eac6e0ef0 R09: 0000000000000084
[ 451.826581][ T8902] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 451.826593][ T8902] R13: 00007f7eac6e0eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 451.826625][ T8902]
[ 451.826649][ T8902] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 451.843717][ T8906] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 451.941067][ T8900] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 451.950309][ T8902] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 452.231252][ T8906] CPU: 0 UID: 0 PID: 8906 Comm: syz.3.511 Not tainted syzkaller #0 PREEMPT(full)
[ 452.231278][ T8906] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 452.231290][ T8906] Call Trace:
[ 452.231298][ T8906]
[ 452.231306][ T8906] dump_stack_lvl+0x189/0x250
[ 452.231337][ T8906] ? __pfx_dump_stack_lvl+0x10/0x10
[ 452.231358][ T8906] ? __pfx__printk+0x10/0x10
[ 452.231388][ T8906] ? kernfs_path_from_node+0x250/0x290
[ 452.231407][ T8906] ? kernfs_path_from_node+0x2f/0x290
[ 452.231431][ T8906] sysfs_create_dir_ns+0x259/0x280
[ 452.231454][ T8906] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 452.231476][ T8906] ? do_raw_spin_unlock+0x122/0x240
[ 452.231501][ T8906] kobject_add_internal+0x59f/0xb40
[ 452.231531][ T8906] kobject_init_and_add+0x125/0x190
[ 452.231559][ T8906] ? __pfx_kobject_init_and_add+0x10/0x10
[ 452.231581][ T8906] ? __raw_spin_lock_init+0x45/0x100
[ 452.231603][ T8906] ? __init_swait_queue_head+0xa9/0x150
[ 452.231633][ T8906] gfs2_sys_fs_add+0x234/0x450
[ 452.231656][ T8906] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 452.231682][ T8906] ? is_dynamic_key+0xd6/0x1c0
[ 452.231703][ T8906] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 452.231742][ T8906] gfs2_fill_super+0x13c0/0x20d0
[ 452.231785][ T8906] ? __pfx_gfs2_fill_super+0x10/0x10
[ 452.231812][ T8906] ? sb_set_blocksize+0x104/0x180
[ 452.231834][ T8906] ? setup_bdev_super+0x4c1/0x5b0
[ 452.231861][ T8906] get_tree_bdev_flags+0x40e/0x4d0
[ 452.231884][ T8906] ? __pfx_gfs2_fill_super+0x10/0x10
[ 452.231907][ T8906] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 452.231928][ T8906] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 452.231957][ T8906] gfs2_get_tree+0x51/0x1e0
[ 452.231983][ T8906] vfs_get_tree+0x92/0x2b0
[ 452.232010][ T8906] do_new_mount+0x302/0xa10
[ 452.232033][ T8906] ? apparmor_capable+0x137/0x1b0
[ 452.232061][ T8906] ? __pfx_do_new_mount+0x10/0x10
[ 452.232085][ T8906] ? ns_capable+0x8a/0xf0
[ 452.232111][ T8906] ? kmem_cache_free+0x19a/0x690
[ 452.232147][ T8906] __se_sys_mount+0x313/0x410
[ 452.232178][ T8906] ? __pfx___se_sys_mount+0x10/0x10
[ 452.232207][ T8906] ? do_syscall_64+0xbe/0xfa0
[ 452.232225][ T8906] ? __x64_sys_mount+0x20/0xc0
[ 452.232251][ T8906] do_syscall_64+0xfa/0xfa0
[ 452.232269][ T8906] ? lockdep_hardirqs_on+0x9c/0x150
[ 452.232288][ T8906] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 452.232305][ T8906] ? clear_bhb_loop+0x60/0xb0
[ 452.232327][ T8906] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 452.232344][ T8906] RIP: 0033:0x7f5b4b19038a
[ 452.232361][ T8906] 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
[ 452.232375][ T8906] RSP: 002b:00007f5b4c0b5e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 452.232394][ T8906] RAX: ffffffffffffffda RBX: 00007f5b4c0b5ef0 RCX: 00007f5b4b19038a
[ 452.232407][ T8906] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f5b4c0b5eb0
[ 452.232420][ T8906] RBP: 000020000001f680 R08: 00007f5b4c0b5ef0 R09: 0000000000000084
[ 452.232433][ T8906] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 452.232445][ T8906] R13: 00007f5b4c0b5eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 452.232476][ T8906]
[ 452.232563][ T8906] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 452.855013][ T8906] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 454.285765][ T8919] loop0: detected capacity change from 0 to 32768
[ 454.289920][ T8921] loop4: detected capacity change from 0 to 32768
[ 454.323746][ T8921] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 454.342265][ T8921] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 454.355747][ T8923] loop2: detected capacity change from 0 to 32768
[ 454.378722][ T8919] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 454.414360][ T8921] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 454.422222][ T8923] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 454.429619][ T8923] CPU: 1 UID: 0 PID: 8923 Comm: syz.2.514 Not tainted syzkaller #0 PREEMPT(full)
[ 454.429645][ T8923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 454.429656][ T8923] Call Trace:
[ 454.429665][ T8923]
[ 454.429673][ T8923] dump_stack_lvl+0x189/0x250
[ 454.429704][ T8923] ? __pfx_dump_stack_lvl+0x10/0x10
[ 454.429726][ T8923] ? __pfx__printk+0x10/0x10
[ 454.429757][ T8923] ? kernfs_path_from_node+0x250/0x290
[ 454.429777][ T8923] ? kernfs_path_from_node+0x2f/0x290
[ 454.429802][ T8923] sysfs_create_dir_ns+0x259/0x280
[ 454.429824][ T8923] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 454.429846][ T8923] ? do_raw_spin_unlock+0x122/0x240
[ 454.429870][ T8923] kobject_add_internal+0x59f/0xb40
[ 454.429901][ T8923] kobject_init_and_add+0x125/0x190
[ 454.429928][ T8923] ? __pfx_kobject_init_and_add+0x10/0x10
[ 454.429951][ T8923] ? __raw_spin_lock_init+0x45/0x100
[ 454.429972][ T8923] ? __init_swait_queue_head+0xa9/0x150
[ 454.429995][ T8923] gfs2_sys_fs_add+0x234/0x450
[ 454.430016][ T8923] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 454.430041][ T8923] ? is_dynamic_key+0xd6/0x1c0
[ 454.430063][ T8923] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 454.430100][ T8923] gfs2_fill_super+0x13c0/0x20d0
[ 454.430141][ T8923] ? __pfx_gfs2_fill_super+0x10/0x10
[ 454.430169][ T8923] ? sb_set_blocksize+0x104/0x180
[ 454.430191][ T8923] ? setup_bdev_super+0x4c1/0x5b0
[ 454.430218][ T8923] get_tree_bdev_flags+0x40e/0x4d0
[ 454.430242][ T8923] ? __pfx_gfs2_fill_super+0x10/0x10
[ 454.430265][ T8923] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 454.430287][ T8923] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 454.430317][ T8923] gfs2_get_tree+0x51/0x1e0
[ 454.430343][ T8923] vfs_get_tree+0x92/0x2b0
[ 454.430369][ T8923] do_new_mount+0x302/0xa10
[ 454.430392][ T8923] ? apparmor_capable+0x137/0x1b0
[ 454.430421][ T8923] ? __pfx_do_new_mount+0x10/0x10
[ 454.430446][ T8923] ? ns_capable+0x8a/0xf0
[ 454.430481][ T8923] ? kmem_cache_free+0x19a/0x690
[ 454.430516][ T8923] __se_sys_mount+0x313/0x410
[ 454.430548][ T8923] ? __pfx___se_sys_mount+0x10/0x10
[ 454.430577][ T8923] ? do_syscall_64+0xbe/0xfa0
[ 454.430596][ T8923] ? __x64_sys_mount+0x20/0xc0
[ 454.430623][ T8923] do_syscall_64+0xfa/0xfa0
[ 454.430642][ T8923] ? lockdep_hardirqs_on+0x9c/0x150
[ 454.430661][ T8923] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 454.430679][ T8923] ? clear_bhb_loop+0x60/0xb0
[ 454.430700][ T8923] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 454.430718][ T8923] RIP: 0033:0x7f00e119038a
[ 454.430736][ T8923] 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
[ 454.430752][ T8923] RSP: 002b:00007f00e1ff0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 454.430772][ T8923] RAX: ffffffffffffffda RBX: 00007f00e1ff0ef0 RCX: 00007f00e119038a
[ 454.430786][ T8923] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f00e1ff0eb0
[ 454.430799][ T8923] RBP: 000020000001f680 R08: 00007f00e1ff0ef0 R09: 0000000000000084
[ 454.430812][ T8923] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 454.430825][ T8923] R13: 00007f00e1ff0eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 454.430856][ T8923]
[ 454.430881][ T8923] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 454.501280][ T8919] CPU: 0 UID: 0 PID: 8919 Comm: syz.0.513 Not tainted syzkaller #0 PREEMPT(full)
[ 454.501307][ T8919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 454.501318][ T8919] Call Trace:
[ 454.501326][ T8919]
[ 454.501334][ T8919] dump_stack_lvl+0x189/0x250
[ 454.501365][ T8919] ? __pfx_dump_stack_lvl+0x10/0x10
[ 454.501387][ T8919] ? __pfx__printk+0x10/0x10
[ 454.501417][ T8919] ? kernfs_path_from_node+0x250/0x290
[ 454.501436][ T8919] ? kernfs_path_from_node+0x2f/0x290
[ 454.501459][ T8919] sysfs_create_dir_ns+0x259/0x280
[ 454.501482][ T8919] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 454.501504][ T8919] ? do_raw_spin_unlock+0x122/0x240
[ 454.501528][ T8919] kobject_add_internal+0x59f/0xb40
[ 454.501559][ T8919] kobject_init_and_add+0x125/0x190
[ 454.501587][ T8919] ? __pfx_kobject_init_and_add+0x10/0x10
[ 454.501610][ T8919] ? __raw_spin_lock_init+0x45/0x100
[ 454.501631][ T8919] ? __init_swait_queue_head+0xa9/0x150
[ 454.501654][ T8919] gfs2_sys_fs_add+0x234/0x450
[ 454.501677][ T8919] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 454.501703][ T8919] ? is_dynamic_key+0xd6/0x1c0
[ 454.501725][ T8919] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 454.501760][ T8919] gfs2_fill_super+0x13c0/0x20d0
[ 454.501800][ T8919] ? __pfx_gfs2_fill_super+0x10/0x10
[ 454.501827][ T8919] ? sb_set_blocksize+0x104/0x180
[ 454.501849][ T8919] ? setup_bdev_super+0x4c1/0x5b0
[ 454.501876][ T8919] get_tree_bdev_flags+0x40e/0x4d0
[ 454.501900][ T8919] ? __pfx_gfs2_fill_super+0x10/0x10
[ 454.501923][ T8919] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 454.501945][ T8919] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 454.501974][ T8919] gfs2_get_tree+0x51/0x1e0
[ 454.502000][ T8919] vfs_get_tree+0x92/0x2b0
[ 454.502026][ T8919] do_new_mount+0x302/0xa10
[ 454.502049][ T8919] ? apparmor_capable+0x137/0x1b0
[ 454.502077][ T8919] ? __pfx_do_new_mount+0x10/0x10
[ 454.502101][ T8919] ? ns_capable+0x8a/0xf0
[ 454.502128][ T8919] ? kmem_cache_free+0x19a/0x690
[ 454.502162][ T8919] __se_sys_mount+0x313/0x410
[ 454.502193][ T8919] ? __pfx___se_sys_mount+0x10/0x10
[ 454.502231][ T8919] ? do_syscall_64+0xbe/0xfa0
[ 454.502249][ T8919] ? __x64_sys_mount+0x20/0xc0
[ 454.502276][ T8919] do_syscall_64+0xfa/0xfa0
[ 454.502294][ T8919] ? lockdep_hardirqs_on+0x9c/0x150
[ 454.502312][ T8919] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 454.502329][ T8919] ? clear_bhb_loop+0x60/0xb0
[ 454.502351][ T8919] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 454.502368][ T8919] RIP: 0033:0x7fb5c599038a
[ 454.502385][ T8919] 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
[ 454.502400][ T8919] RSP: 002b:00007fb5c67c3e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 454.502419][ T8919] RAX: ffffffffffffffda RBX: 00007fb5c67c3ef0 RCX: 00007fb5c599038a
[ 454.502433][ T8919] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb5c67c3eb0
[ 454.502445][ T8919] RBP: 000020000001f680 R08: 00007fb5c67c3ef0 R09: 0000000000000084
[ 454.502458][ T8919] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 454.502469][ T8919] R13: 00007fb5c67c3eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 454.502500][ T8919]
[ 454.502525][ T8919] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 454.553071][ T5971] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 454.557089][ T8923] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 454.560033][ T5971] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 454.937612][ T8919] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 455.140771][ T8925] loop1: detected capacity change from 0 to 32768
[ 455.205875][ T8925] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 455.214447][ T5971] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 654ms
[ 455.224967][ T8925] CPU: 0 UID: 0 PID: 8925 Comm: syz.1.512 Not tainted syzkaller #0 PREEMPT(full)
[ 455.225001][ T8925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 455.225013][ T8925] Call Trace:
[ 455.225021][ T8925]
[ 455.225030][ T8925] dump_stack_lvl+0x189/0x250
[ 455.225060][ T8925] ? __pfx_dump_stack_lvl+0x10/0x10
[ 455.225082][ T8925] ? __pfx__printk+0x10/0x10
[ 455.225112][ T8925] ? kernfs_path_from_node+0x250/0x290
[ 455.225137][ T8925] ? kernfs_path_from_node+0x2f/0x290
[ 455.225159][ T8925] sysfs_create_dir_ns+0x259/0x280
[ 455.225181][ T8925] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 455.225202][ T8925] ? do_raw_spin_unlock+0x122/0x240
[ 455.225228][ T8925] kobject_add_internal+0x59f/0xb40
2025/09/13 13:20:31 executed programs: 510
[ 455.225259][ T8925] kobject_init_and_add+0x125/0x190
[ 455.225286][ T8925] ? __pfx_kobject_init_and_add+0x10/0x10
[ 455.225308][ T8925] ? __raw_spin_lock_init+0x45/0x100
[ 455.225329][ T8925] ? __init_swait_queue_head+0xa9/0x150
[ 455.225350][ T8925] gfs2_sys_fs_add+0x234/0x450
[ 455.225376][ T8925] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 455.225400][ T8925] ? is_dynamic_key+0xd6/0x1c0
[ 455.225421][ T8925] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 455.225454][ T8925] gfs2_fill_super+0x13c0/0x20d0
[ 455.225489][ T8925] ? __pfx_gfs2_fill_super+0x10/0x10
[ 455.225516][ T8925] ? sb_set_blocksize+0x104/0x180
[ 455.225536][ T8925] ? setup_bdev_super+0x4c1/0x5b0
[ 455.225561][ T8925] get_tree_bdev_flags+0x40e/0x4d0
[ 455.225585][ T8925] ? __pfx_gfs2_fill_super+0x10/0x10
[ 455.225608][ T8925] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 455.225629][ T8925] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 455.225655][ T8925] gfs2_get_tree+0x51/0x1e0
[ 455.225682][ T8925] vfs_get_tree+0x92/0x2b0
[ 455.225708][ T8925] do_new_mount+0x302/0xa10
[ 455.225731][ T8925] ? apparmor_capable+0x137/0x1b0
[ 455.225757][ T8925] ? __pfx_do_new_mount+0x10/0x10
[ 455.225780][ T8925] ? ns_capable+0x8a/0xf0
[ 455.225807][ T8925] ? kmem_cache_free+0x19a/0x690
[ 455.225842][ T8925] __se_sys_mount+0x313/0x410
[ 455.225874][ T8925] ? __pfx___se_sys_mount+0x10/0x10
[ 455.225903][ T8925] ? do_syscall_64+0xbe/0xfa0
[ 455.225921][ T8925] ? __x64_sys_mount+0x20/0xc0
[ 455.225948][ T8925] do_syscall_64+0xfa/0xfa0
[ 455.225967][ T8925] ? lockdep_hardirqs_on+0x9c/0x150
[ 455.225986][ T8925] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 455.226004][ T8925] ? clear_bhb_loop+0x60/0xb0
[ 455.226026][ T8925] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 455.226044][ T8925] RIP: 0033:0x7f3eb939038a
[ 455.226061][ T8925] 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
[ 455.226076][ T8925] RSP: 002b:00007f3eba2cae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 455.226095][ T8925] RAX: ffffffffffffffda RBX: 00007f3eba2caef0 RCX: 00007f3eb939038a
[ 455.226109][ T8925] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3eba2caeb0
[ 455.226145][ T8925] RBP: 000020000001f680 R08: 00007f3eba2caef0 R09: 0000000000000084
[ 455.226156][ T8925] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 455.226168][ T8925] R13: 00007f3eba2caeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 455.226201][ T8925]
[ 455.226228][ T8925] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 455.273561][ T5971] gfs2: fsid=syz:syz.0: jid=0: Done
[ 455.349972][ T8927] loop3: detected capacity change from 0 to 32768
[ 455.384480][ T8921] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 455.582795][ T8925] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 455.590280][ T8927] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 455.613110][ T8927] CPU: 0 UID: 0 PID: 8927 Comm: syz.3.516 Not tainted syzkaller #0 PREEMPT(full)
[ 455.613135][ T8927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 455.613147][ T8927] Call Trace:
[ 455.613155][ T8927]
[ 455.613164][ T8927] dump_stack_lvl+0x189/0x250
[ 455.613193][ T8927] ? __pfx_dump_stack_lvl+0x10/0x10
[ 455.613214][ T8927] ? __pfx__printk+0x10/0x10
[ 455.613245][ T8927] ? kernfs_path_from_node+0x250/0x290
[ 455.613263][ T8927] ? kernfs_path_from_node+0x2f/0x290
[ 455.613285][ T8927] sysfs_create_dir_ns+0x259/0x280
[ 455.613307][ T8927] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 455.613328][ T8927] ? do_raw_spin_unlock+0x122/0x240
[ 455.613358][ T8927] kobject_add_internal+0x59f/0xb40
[ 455.613387][ T8927] kobject_init_and_add+0x125/0x190
[ 455.613412][ T8927] ? __pfx_kobject_init_and_add+0x10/0x10
[ 455.613432][ T8927] ? __raw_spin_lock_init+0x45/0x100
[ 455.613453][ T8927] ? __init_swait_queue_head+0xa9/0x150
[ 455.613474][ T8927] gfs2_sys_fs_add+0x234/0x450
[ 455.613496][ T8927] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 455.613520][ T8927] ? is_dynamic_key+0xd6/0x1c0
[ 455.613542][ T8927] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 455.613577][ T8927] gfs2_fill_super+0x13c0/0x20d0
[ 455.613617][ T8927] ? __pfx_gfs2_fill_super+0x10/0x10
[ 455.613645][ T8927] ? sb_set_blocksize+0x104/0x180
[ 455.613667][ T8927] ? setup_bdev_super+0x4c1/0x5b0
[ 455.613695][ T8927] get_tree_bdev_flags+0x40e/0x4d0
[ 455.613723][ T8927] ? __pfx_gfs2_fill_super+0x10/0x10
[ 455.613747][ T8927] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 455.613768][ T8927] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 455.613796][ T8927] gfs2_get_tree+0x51/0x1e0
[ 455.613823][ T8927] vfs_get_tree+0x92/0x2b0
[ 455.613850][ T8927] do_new_mount+0x302/0xa10
[ 455.613873][ T8927] ? apparmor_capable+0x137/0x1b0
[ 455.613899][ T8927] ? __pfx_do_new_mount+0x10/0x10
[ 455.613923][ T8927] ? ns_capable+0x8a/0xf0
[ 455.613951][ T8927] ? kmem_cache_free+0x19a/0x690
[ 455.613987][ T8927] __se_sys_mount+0x313/0x410
[ 455.614018][ T8927] ? __pfx___se_sys_mount+0x10/0x10
[ 455.614046][ T8927] ? do_syscall_64+0xbe/0xfa0
[ 455.614062][ T8927] ? __x64_sys_mount+0x20/0xc0
[ 455.614089][ T8927] do_syscall_64+0xfa/0xfa0
[ 455.614105][ T8927] ? lockdep_hardirqs_on+0x9c/0x150
[ 455.614124][ T8927] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 455.614142][ T8927] ? clear_bhb_loop+0x60/0xb0
[ 455.614165][ T8927] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 455.614182][ T8927] RIP: 0033:0x7f5b4b19038a
[ 455.614200][ T8927] 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
[ 455.614214][ T8927] RSP: 002b:00007f5b4c0b5e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 455.614234][ T8927] RAX: ffffffffffffffda RBX: 00007f5b4c0b5ef0 RCX: 00007f5b4b19038a
[ 455.614248][ T8927] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f5b4c0b5eb0
[ 455.614260][ T8927] RBP: 000020000001f680 R08: 00007f5b4c0b5ef0 R09: 0000000000000084
[ 455.614272][ T8927] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 455.614284][ T8927] R13: 00007f5b4c0b5eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 455.614312][ T8927]
[ 455.631094][ T8927] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 456.005485][ T8927] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 456.999830][ T8937] loop2: detected capacity change from 0 to 32768
[ 457.049484][ T8937] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 457.091163][ T8937] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 457.160353][ T8937] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 457.170199][ T6428] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 457.178206][ T6428] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 457.289601][ T6428] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 111ms
[ 457.316303][ T6428] gfs2: fsid=syz:syz.0: jid=0: Done
[ 457.320325][ T8943] loop1: detected capacity change from 0 to 32768
[ 457.334523][ T8937] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 457.376803][ T8943] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 457.391341][ T8943] CPU: 0 UID: 0 PID: 8943 Comm: syz.1.518 Not tainted syzkaller #0 PREEMPT(full)
[ 457.391368][ T8943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 457.391380][ T8943] Call Trace:
[ 457.391388][ T8943]
[ 457.391397][ T8943] dump_stack_lvl+0x189/0x250
[ 457.391428][ T8943] ? __pfx_dump_stack_lvl+0x10/0x10
[ 457.391451][ T8943] ? __pfx__printk+0x10/0x10
[ 457.391482][ T8943] ? kernfs_path_from_node+0x250/0x290
[ 457.391508][ T8943] ? kernfs_path_from_node+0x2f/0x290
[ 457.391538][ T8943] sysfs_create_dir_ns+0x259/0x280
[ 457.391562][ T8943] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 457.391585][ T8943] ? do_raw_spin_unlock+0x122/0x240
[ 457.391611][ T8943] kobject_add_internal+0x59f/0xb40
[ 457.391643][ T8943] kobject_init_and_add+0x125/0x190
[ 457.391671][ T8943] ? __pfx_kobject_init_and_add+0x10/0x10
[ 457.391695][ T8943] ? __raw_spin_lock_init+0x45/0x100
[ 457.391717][ T8943] ? __init_swait_queue_head+0xa9/0x150
[ 457.391742][ T8943] gfs2_sys_fs_add+0x234/0x450
[ 457.391765][ T8943] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 457.391791][ T8943] ? is_dynamic_key+0xd6/0x1c0
[ 457.391814][ T8943] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 457.391851][ T8943] gfs2_fill_super+0x13c0/0x20d0
[ 457.391892][ T8943] ? __pfx_gfs2_fill_super+0x10/0x10
[ 457.391921][ T8943] ? sb_set_blocksize+0x104/0x180
[ 457.391944][ T8943] ? setup_bdev_super+0x4c1/0x5b0
[ 457.391970][ T8943] get_tree_bdev_flags+0x40e/0x4d0
[ 457.391994][ T8943] ? __pfx_gfs2_fill_super+0x10/0x10
[ 457.392018][ T8943] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 457.392040][ T8943] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 457.392070][ T8943] gfs2_get_tree+0x51/0x1e0
[ 457.392098][ T8943] vfs_get_tree+0x92/0x2b0
[ 457.392125][ T8943] do_new_mount+0x302/0xa10
[ 457.392149][ T8943] ? apparmor_capable+0x137/0x1b0
[ 457.392178][ T8943] ? __pfx_do_new_mount+0x10/0x10
[ 457.392210][ T8943] ? ns_capable+0x8a/0xf0
[ 457.392239][ T8943] ? kmem_cache_free+0x19a/0x690
[ 457.392275][ T8943] __se_sys_mount+0x313/0x410
[ 457.392307][ T8943] ? __pfx___se_sys_mount+0x10/0x10
[ 457.392337][ T8943] ? do_syscall_64+0xbe/0xfa0
[ 457.392355][ T8943] ? __x64_sys_mount+0x20/0xc0
[ 457.392383][ T8943] do_syscall_64+0xfa/0xfa0
[ 457.392401][ T8943] ? lockdep_hardirqs_on+0x9c/0x150
[ 457.392421][ T8943] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 457.392439][ T8943] ? clear_bhb_loop+0x60/0xb0
[ 457.392462][ T8943] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 457.392480][ T8943] RIP: 0033:0x7f3eb939038a
[ 457.392497][ T8943] 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
[ 457.392513][ T8943] RSP: 002b:00007f3eba2cae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 457.392533][ T8943] RAX: ffffffffffffffda RBX: 00007f3eba2caef0 RCX: 00007f3eb939038a
[ 457.392547][ T8943] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3eba2caeb0
[ 457.392560][ T8943] RBP: 000020000001f680 R08: 00007f3eba2caef0 R09: 0000000000000084
[ 457.392572][ T8943] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 457.392584][ T8943] R13: 00007f3eba2caeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 457.392616][ T8943]
[ 457.392644][ T8943] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 457.794363][ T8943] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 457.813783][ T8945] loop0: detected capacity change from 0 to 32768
[ 457.892198][ T8945] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 457.899628][ T8945] CPU: 0 UID: 0 PID: 8945 Comm: syz.0.519 Not tainted syzkaller #0 PREEMPT(full)
[ 457.899652][ T8945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 457.899665][ T8945] Call Trace:
[ 457.899673][ T8945]
[ 457.899681][ T8945] dump_stack_lvl+0x189/0x250
[ 457.899712][ T8945] ? __pfx_dump_stack_lvl+0x10/0x10
[ 457.899734][ T8945] ? __pfx__printk+0x10/0x10
[ 457.899764][ T8945] ? kernfs_path_from_node+0x250/0x290
[ 457.899785][ T8945] ? kernfs_path_from_node+0x2f/0x290
[ 457.899809][ T8945] sysfs_create_dir_ns+0x259/0x280
[ 457.899833][ T8945] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 457.899856][ T8945] ? do_raw_spin_unlock+0x122/0x240
[ 457.899882][ T8945] kobject_add_internal+0x59f/0xb40
[ 457.899914][ T8945] kobject_init_and_add+0x125/0x190
[ 457.899948][ T8945] ? __pfx_kobject_init_and_add+0x10/0x10
[ 457.899973][ T8945] ? __raw_spin_lock_init+0x45/0x100
[ 457.899995][ T8945] ? __init_swait_queue_head+0xa9/0x150
[ 457.900019][ T8945] gfs2_sys_fs_add+0x234/0x450
[ 457.900042][ T8945] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 457.900070][ T8945] ? is_dynamic_key+0xd6/0x1c0
[ 457.900092][ T8945] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 457.900129][ T8945] gfs2_fill_super+0x13c0/0x20d0
[ 457.900170][ T8945] ? __pfx_gfs2_fill_super+0x10/0x10
[ 457.900198][ T8945] ? sb_set_blocksize+0x104/0x180
[ 457.900221][ T8945] ? setup_bdev_super+0x4c1/0x5b0
[ 457.900248][ T8945] get_tree_bdev_flags+0x40e/0x4d0
[ 457.900273][ T8945] ? __pfx_gfs2_fill_super+0x10/0x10
[ 457.900296][ T8945] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 457.900318][ T8945] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 457.900344][ T8945] gfs2_get_tree+0x51/0x1e0
[ 457.900369][ T8945] vfs_get_tree+0x92/0x2b0
[ 457.900394][ T8945] do_new_mount+0x302/0xa10
[ 457.900416][ T8945] ? apparmor_capable+0x137/0x1b0
[ 457.900442][ T8945] ? __pfx_do_new_mount+0x10/0x10
[ 457.900467][ T8945] ? ns_capable+0x8a/0xf0
[ 457.900495][ T8945] ? kmem_cache_free+0x19a/0x690
[ 457.900532][ T8945] __se_sys_mount+0x313/0x410
[ 457.900564][ T8945] ? __pfx___se_sys_mount+0x10/0x10
[ 457.900593][ T8945] ? do_syscall_64+0xbe/0xfa0
[ 457.900611][ T8945] ? __x64_sys_mount+0x20/0xc0
[ 457.900638][ T8945] do_syscall_64+0xfa/0xfa0
[ 457.900656][ T8945] ? lockdep_hardirqs_on+0x9c/0x150
[ 457.900676][ T8945] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 457.900694][ T8945] ? clear_bhb_loop+0x60/0xb0
[ 457.900717][ T8945] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 457.900735][ T8945] RIP: 0033:0x7fb5c599038a
[ 457.900752][ T8945] 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
[ 457.900769][ T8945] RSP: 002b:00007fb5c67c3e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 457.900789][ T8945] RAX: ffffffffffffffda RBX: 00007fb5c67c3ef0 RCX: 00007fb5c599038a
[ 457.900803][ T8945] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb5c67c3eb0
[ 457.900816][ T8945] RBP: 000020000001f680 R08: 00007fb5c67c3ef0 R09: 0000000000000084
[ 457.900829][ T8945] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 457.900840][ T8945] R13: 00007fb5c67c3eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 457.900873][ T8945]
[ 457.900898][ T8945] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 457.909324][ T8947] loop3: detected capacity change from 0 to 32768
[ 458.008762][ T8945] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 458.301193][ T8949] loop4: detected capacity change from 0 to 32768
[ 458.322205][ T8947] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 458.341170][ T8947] CPU: 0 UID: 0 PID: 8947 Comm: syz.3.521 Not tainted syzkaller #0 PREEMPT(full)
[ 458.341197][ T8947] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 458.341209][ T8947] Call Trace:
[ 458.341217][ T8947]
[ 458.341227][ T8947] dump_stack_lvl+0x189/0x250
[ 458.341257][ T8947] ? __pfx_dump_stack_lvl+0x10/0x10
[ 458.341279][ T8947] ? __pfx__printk+0x10/0x10
[ 458.341310][ T8947] ? kernfs_path_from_node+0x250/0x290
[ 458.341331][ T8947] ? kernfs_path_from_node+0x2f/0x290
[ 458.341355][ T8947] sysfs_create_dir_ns+0x259/0x280
[ 458.341379][ T8947] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 458.341402][ T8947] ? do_raw_spin_unlock+0x122/0x240
[ 458.341428][ T8947] kobject_add_internal+0x59f/0xb40
[ 458.341459][ T8947] kobject_init_and_add+0x125/0x190
[ 458.341487][ T8947] ? __pfx_kobject_init_and_add+0x10/0x10
[ 458.341511][ T8947] ? __raw_spin_lock_init+0x45/0x100
[ 458.341533][ T8947] ? __init_swait_queue_head+0xa9/0x150
[ 458.341557][ T8947] gfs2_sys_fs_add+0x234/0x450
[ 458.341581][ T8947] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 458.341608][ T8947] ? is_dynamic_key+0xd6/0x1c0
[ 458.341631][ T8947] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 458.341667][ T8947] gfs2_fill_super+0x13c0/0x20d0
[ 458.341708][ T8947] ? __pfx_gfs2_fill_super+0x10/0x10
[ 458.341741][ T8947] ? sb_set_blocksize+0x104/0x180
[ 458.341763][ T8947] ? setup_bdev_super+0x4c1/0x5b0
[ 458.341792][ T8947] get_tree_bdev_flags+0x40e/0x4d0
[ 458.341817][ T8947] ? __pfx_gfs2_fill_super+0x10/0x10
[ 458.341850][ T8947] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 458.341872][ T8947] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 458.341903][ T8947] gfs2_get_tree+0x51/0x1e0
[ 458.341930][ T8947] vfs_get_tree+0x92/0x2b0
[ 458.341957][ T8947] do_new_mount+0x302/0xa10
[ 458.341982][ T8947] ? apparmor_capable+0x137/0x1b0
[ 458.342010][ T8947] ? __pfx_do_new_mount+0x10/0x10
[ 458.342036][ T8947] ? ns_capable+0x8a/0xf0
[ 458.342064][ T8947] ? kmem_cache_free+0x19a/0x690
[ 458.342099][ T8947] __se_sys_mount+0x313/0x410
[ 458.342132][ T8947] ? __pfx___se_sys_mount+0x10/0x10
[ 458.342162][ T8947] ? do_syscall_64+0xbe/0xfa0
[ 458.342180][ T8947] ? __x64_sys_mount+0x20/0xc0
[ 458.342208][ T8947] do_syscall_64+0xfa/0xfa0
[ 458.342226][ T8947] ? lockdep_hardirqs_on+0x9c/0x150
[ 458.342245][ T8947] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 458.342263][ T8947] ? clear_bhb_loop+0x60/0xb0
[ 458.342285][ T8947] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 458.342303][ T8947] RIP: 0033:0x7f5b4b19038a
[ 458.342321][ T8947] 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
[ 458.342336][ T8947] RSP: 002b:00007f5b4c0b5e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 458.342355][ T8947] RAX: ffffffffffffffda RBX: 00007f5b4c0b5ef0 RCX: 00007f5b4b19038a
[ 458.342369][ T8947] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f5b4c0b5eb0
[ 458.342382][ T8947] RBP: 000020000001f680 R08: 00007f5b4c0b5ef0 R09: 0000000000000084
[ 458.342394][ T8947] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 458.342406][ T8947] R13: 00007f5b4c0b5eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 458.342438][ T8947]
[ 458.342500][ T8947] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 458.686438][ T8947] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 458.747061][ T8949] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 458.775407][ T8949] CPU: 1 UID: 0 PID: 8949 Comm: syz.4.520 Not tainted syzkaller #0 PREEMPT(full)
[ 458.775432][ T8949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 458.775443][ T8949] Call Trace:
[ 458.775452][ T8949]
[ 458.775460][ T8949] dump_stack_lvl+0x189/0x250
[ 458.775491][ T8949] ? __pfx_dump_stack_lvl+0x10/0x10
[ 458.775513][ T8949] ? __pfx__printk+0x10/0x10
[ 458.775544][ T8949] ? kernfs_path_from_node+0x250/0x290
[ 458.775564][ T8949] ? kernfs_path_from_node+0x2f/0x290
[ 458.775589][ T8949] sysfs_create_dir_ns+0x259/0x280
[ 458.775612][ T8949] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 458.775635][ T8949] ? do_raw_spin_unlock+0x122/0x240
[ 458.775661][ T8949] kobject_add_internal+0x59f/0xb40
[ 458.775693][ T8949] kobject_init_and_add+0x125/0x190
[ 458.775721][ T8949] ? __pfx_kobject_init_and_add+0x10/0x10
[ 458.775744][ T8949] ? __raw_spin_lock_init+0x45/0x100
[ 458.775766][ T8949] ? __init_swait_queue_head+0xa9/0x150
[ 458.775802][ T8949] gfs2_sys_fs_add+0x234/0x450
[ 458.775825][ T8949] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 458.775852][ T8949] ? is_dynamic_key+0xd6/0x1c0
[ 458.775874][ T8949] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 458.775911][ T8949] gfs2_fill_super+0x13c0/0x20d0
[ 458.775953][ T8949] ? __pfx_gfs2_fill_super+0x10/0x10
[ 458.775982][ T8949] ? sb_set_blocksize+0x104/0x180
[ 458.776004][ T8949] ? setup_bdev_super+0x4c1/0x5b0
[ 458.776031][ T8949] get_tree_bdev_flags+0x40e/0x4d0
[ 458.776055][ T8949] ? __pfx_gfs2_fill_super+0x10/0x10
[ 458.776079][ T8949] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 458.776101][ T8949] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 458.776132][ T8949] gfs2_get_tree+0x51/0x1e0
[ 458.776159][ T8949] vfs_get_tree+0x92/0x2b0
[ 458.776186][ T8949] do_new_mount+0x302/0xa10
[ 458.776210][ T8949] ? apparmor_capable+0x137/0x1b0
[ 458.776238][ T8949] ? __pfx_do_new_mount+0x10/0x10
[ 458.776263][ T8949] ? ns_capable+0x8a/0xf0
[ 458.776292][ T8949] ? kmem_cache_free+0x19a/0x690
[ 458.776328][ T8949] __se_sys_mount+0x313/0x410
[ 458.776361][ T8949] ? __pfx___se_sys_mount+0x10/0x10
[ 458.776391][ T8949] ? do_syscall_64+0xbe/0xfa0
[ 458.776409][ T8949] ? __x64_sys_mount+0x20/0xc0
[ 458.776437][ T8949] do_syscall_64+0xfa/0xfa0
[ 458.776456][ T8949] ? lockdep_hardirqs_on+0x9c/0x150
[ 458.776475][ T8949] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 458.776494][ T8949] ? clear_bhb_loop+0x60/0xb0
[ 458.776517][ T8949] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 458.776534][ T8949] RIP: 0033:0x7f7eab79038a
[ 458.776552][ T8949] 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
[ 458.776569][ T8949] RSP: 002b:00007f7eac6e0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 458.776589][ T8949] RAX: ffffffffffffffda RBX: 00007f7eac6e0ef0 RCX: 00007f7eab79038a
[ 458.776604][ T8949] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f7eac6e0eb0
[ 458.776617][ T8949] RBP: 000020000001f680 R08: 00007f7eac6e0ef0 R09: 0000000000000084
[ 458.776630][ T8949] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 458.776643][ T8949] R13: 00007f7eac6e0eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 458.776676][ T8949]
[ 458.776702][ T8949] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 459.211600][ T8949] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 460.234810][ T8961] loop0: detected capacity change from 0 to 32768
[ 460.297868][ T8961] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 460.308261][ T8965] loop1: detected capacity change from 0 to 32768
[ 460.321510][ T8961] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 460.371777][ T8965] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 460.379207][ T8965] CPU: 0 UID: 0 PID: 8965 Comm: syz.1.524 Not tainted syzkaller #0 PREEMPT(full)
[ 460.379232][ T8965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 460.379244][ T8965] Call Trace:
[ 460.379252][ T8965]
[ 460.379261][ T8965] dump_stack_lvl+0x189/0x250
[ 460.379292][ T8965] ? __pfx_dump_stack_lvl+0x10/0x10
[ 460.379314][ T8965] ? __pfx__printk+0x10/0x10
[ 460.379345][ T8965] ? kernfs_path_from_node+0x250/0x290
[ 460.379365][ T8965] ? kernfs_path_from_node+0x2f/0x290
[ 460.379390][ T8965] sysfs_create_dir_ns+0x259/0x280
[ 460.379414][ T8965] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 460.379436][ T8965] ? do_raw_spin_unlock+0x122/0x240
[ 460.379462][ T8965] kobject_add_internal+0x59f/0xb40
[ 460.379493][ T8965] kobject_init_and_add+0x125/0x190
[ 460.379522][ T8965] ? __pfx_kobject_init_and_add+0x10/0x10
[ 460.379546][ T8965] ? __raw_spin_lock_init+0x45/0x100
[ 460.379568][ T8965] ? __init_swait_queue_head+0xa9/0x150
[ 460.379593][ T8965] gfs2_sys_fs_add+0x234/0x450
[ 460.379621][ T8965] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 460.379648][ T8965] ? is_dynamic_key+0xd6/0x1c0
[ 460.379671][ T8965] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 460.379708][ T8965] gfs2_fill_super+0x13c0/0x20d0
[ 460.379749][ T8965] ? __pfx_gfs2_fill_super+0x10/0x10
[ 460.379778][ T8965] ? sb_set_blocksize+0x104/0x180
[ 460.379801][ T8965] ? setup_bdev_super+0x4c1/0x5b0
[ 460.379830][ T8965] get_tree_bdev_flags+0x40e/0x4d0
[ 460.379854][ T8965] ? __pfx_gfs2_fill_super+0x10/0x10
[ 460.379878][ T8965] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 460.379900][ T8965] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 460.379931][ T8965] gfs2_get_tree+0x51/0x1e0
[ 460.379959][ T8965] vfs_get_tree+0x92/0x2b0
[ 460.379992][ T8965] do_new_mount+0x302/0xa10
[ 460.380016][ T8965] ? apparmor_capable+0x137/0x1b0
[ 460.380045][ T8965] ? __pfx_do_new_mount+0x10/0x10
[ 460.380071][ T8965] ? ns_capable+0x8a/0xf0
[ 460.380099][ T8965] ? kmem_cache_free+0x19a/0x690
[ 460.380136][ T8965] __se_sys_mount+0x313/0x410
[ 460.380170][ T8965] ? __pfx___se_sys_mount+0x10/0x10
[ 460.380200][ T8965] ? do_syscall_64+0xbe/0xfa0
[ 460.380218][ T8965] ? __x64_sys_mount+0x20/0xc0
[ 460.380247][ T8965] do_syscall_64+0xfa/0xfa0
[ 460.380265][ T8965] ? lockdep_hardirqs_on+0x9c/0x150
[ 460.380285][ T8965] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 460.380304][ T8965] ? clear_bhb_loop+0x60/0xb0
[ 460.380326][ T8965] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 460.380344][ T8965] RIP: 0033:0x7f3eb939038a
[ 460.380363][ T8965] 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
[ 460.380379][ T8965] RSP: 002b:00007f3eba2cae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 460.380400][ T8965] RAX: ffffffffffffffda RBX: 00007f3eba2caef0 RCX: 00007f3eb939038a
[ 460.380414][ T8965] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3eba2caeb0
[ 460.380427][ T8965] RBP: 000020000001f680 R08: 00007f3eba2caef0 R09: 0000000000000084
[ 460.380440][ T8965] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 460.380452][ T8965] R13: 00007f3eba2caeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 460.380530][ T8965]
[ 460.380561][ T8965] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 460.556637][ T8961] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 460.658883][ T8967] loop2: detected capacity change from 0 to 32768
[ 460.672349][ T8965] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 460.835701][ T930] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 460.857601][ T930] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 460.862839][ T8969] loop3: detected capacity change from 0 to 32768
[ 460.866153][ T8967] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 460.926431][ T8969] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 460.967108][ T8967] CPU: 0 UID: 0 PID: 8967 Comm: syz.2.522 Not tainted syzkaller #0 PREEMPT(full)
[ 460.967133][ T8967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 460.967144][ T8967] Call Trace:
[ 460.967151][ T8967]
[ 460.967160][ T8967] dump_stack_lvl+0x189/0x250
[ 460.967188][ T8967] ? __pfx_dump_stack_lvl+0x10/0x10
[ 460.967209][ T8967] ? __pfx__printk+0x10/0x10
[ 460.967239][ T8967] ? kernfs_path_from_node+0x250/0x290
[ 460.967258][ T8967] ? kernfs_path_from_node+0x2f/0x290
[ 460.967282][ T8967] sysfs_create_dir_ns+0x259/0x280
[ 460.967305][ T8967] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 460.967327][ T8967] ? do_raw_spin_unlock+0x122/0x240
[ 460.967353][ T8967] kobject_add_internal+0x59f/0xb40
[ 460.967384][ T8967] kobject_init_and_add+0x125/0x190
[ 460.967411][ T8967] ? __pfx_kobject_init_and_add+0x10/0x10
[ 460.967435][ T8967] ? __raw_spin_lock_init+0x45/0x100
[ 460.967456][ T8967] ? __init_swait_queue_head+0xa9/0x150
[ 460.967480][ T8967] gfs2_sys_fs_add+0x234/0x450
[ 460.967504][ T8967] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 460.967530][ T8967] ? is_dynamic_key+0xd6/0x1c0
[ 460.967551][ T8967] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 460.967586][ T8967] gfs2_fill_super+0x13c0/0x20d0
[ 460.967625][ T8967] ? __pfx_gfs2_fill_super+0x10/0x10
[ 460.967663][ T8967] ? sb_set_blocksize+0x104/0x180
[ 460.967686][ T8967] ? setup_bdev_super+0x4c1/0x5b0
[ 460.967715][ T8967] get_tree_bdev_flags+0x40e/0x4d0
[ 460.967739][ T8967] ? __pfx_gfs2_fill_super+0x10/0x10
[ 460.967762][ T8967] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 460.967783][ T8967] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 460.967812][ T8967] gfs2_get_tree+0x51/0x1e0
[ 460.967838][ T8967] vfs_get_tree+0x92/0x2b0
[ 460.967865][ T8967] do_new_mount+0x302/0xa10
[ 460.967889][ T8967] ? apparmor_capable+0x137/0x1b0
[ 460.967918][ T8967] ? __pfx_do_new_mount+0x10/0x10
[ 460.967942][ T8967] ? ns_capable+0x8a/0xf0
[ 460.967970][ T8967] ? kmem_cache_free+0x19a/0x690
[ 460.968003][ T8967] __se_sys_mount+0x313/0x410
[ 460.968035][ T8967] ? __pfx___se_sys_mount+0x10/0x10
[ 460.968065][ T8967] ? do_syscall_64+0xbe/0xfa0
[ 460.968084][ T8967] ? __x64_sys_mount+0x20/0xc0
[ 460.968111][ T8967] do_syscall_64+0xfa/0xfa0
[ 460.968128][ T8967] ? lockdep_hardirqs_on+0x9c/0x150
[ 460.968148][ T8967] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 460.968167][ T8967] ? clear_bhb_loop+0x60/0xb0
[ 460.968187][ T8967] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 460.968204][ T8967] RIP: 0033:0x7f00e119038a
[ 460.968221][ T8967] 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
[ 460.968236][ T8967] RSP: 002b:00007f00e1ff0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 460.968254][ T8967] RAX: ffffffffffffffda RBX: 00007f00e1ff0ef0 RCX: 00007f00e119038a
[ 460.968268][ T8967] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f00e1ff0eb0
[ 460.968281][ T8967] RBP: 000020000001f680 R08: 00007f00e1ff0ef0 R09: 0000000000000084
[ 460.968293][ T8967] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 460.968304][ T8967] R13: 00007f00e1ff0eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 460.968336][ T8967]
[ 460.968364][ T8967] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 460.997538][ T8969] CPU: 1 UID: 0 PID: 8969 Comm: syz.3.525 Not tainted syzkaller #0 PREEMPT(full)
[ 460.997564][ T8969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
2025/09/13 13:20:37 executed programs: 520
[ 460.997575][ T8969] Call Trace:
[ 460.997583][ T8969]
[ 460.997592][ T8969] dump_stack_lvl+0x189/0x250
[ 460.997622][ T8969] ? __pfx_dump_stack_lvl+0x10/0x10
[ 460.997642][ T8969] ? __pfx__printk+0x10/0x10
[ 460.997672][ T8969] ? kernfs_path_from_node+0x250/0x290
[ 460.997691][ T8969] ? kernfs_path_from_node+0x2f/0x290
[ 460.997715][ T8969] sysfs_create_dir_ns+0x259/0x280
[ 460.997738][ T8969] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 460.997759][ T8969] ? do_raw_spin_unlock+0x122/0x240
[ 460.997784][ T8969] kobject_add_internal+0x59f/0xb40
[ 460.997815][ T8969] kobject_init_and_add+0x125/0x190
[ 460.997842][ T8969] ? __pfx_kobject_init_and_add+0x10/0x10
[ 460.997864][ T8969] ? __raw_spin_lock_init+0x45/0x100
[ 460.997893][ T8969] ? __init_swait_queue_head+0xa9/0x150
[ 460.997917][ T8969] gfs2_sys_fs_add+0x234/0x450
[ 460.997939][ T8969] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 460.997964][ T8969] ? is_dynamic_key+0xd6/0x1c0
[ 460.997986][ T8969] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 460.998021][ T8969] gfs2_fill_super+0x13c0/0x20d0
[ 460.998061][ T8969] ? __pfx_gfs2_fill_super+0x10/0x10
[ 460.998089][ T8969] ? sb_set_blocksize+0x104/0x180
[ 460.998111][ T8969] ? setup_bdev_super+0x4c1/0x5b0
[ 460.998139][ T8969] get_tree_bdev_flags+0x40e/0x4d0
[ 460.998163][ T8969] ? __pfx_gfs2_fill_super+0x10/0x10
[ 460.998186][ T8969] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 460.998208][ T8969] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 460.998236][ T8969] gfs2_get_tree+0x51/0x1e0
[ 460.998263][ T8969] vfs_get_tree+0x92/0x2b0
[ 460.998288][ T8969] do_new_mount+0x302/0xa10
[ 460.998312][ T8969] ? apparmor_capable+0x137/0x1b0
[ 460.998339][ T8969] ? __pfx_do_new_mount+0x10/0x10
[ 460.998364][ T8969] ? ns_capable+0x8a/0xf0
[ 460.998391][ T8969] ? kmem_cache_free+0x19a/0x690
[ 460.998426][ T8969] __se_sys_mount+0x313/0x410
[ 460.998457][ T8969] ? __pfx___se_sys_mount+0x10/0x10
[ 460.998487][ T8969] ? do_syscall_64+0xbe/0xfa0
[ 460.998505][ T8969] ? __x64_sys_mount+0x20/0xc0
[ 460.998532][ T8969] do_syscall_64+0xfa/0xfa0
[ 460.998550][ T8969] ? lockdep_hardirqs_on+0x9c/0x150
[ 460.998569][ T8969] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 460.998587][ T8969] ? clear_bhb_loop+0x60/0xb0
[ 460.998608][ T8969] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 460.998626][ T8969] RIP: 0033:0x7f5b4b19038a
[ 460.998642][ T8969] 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
[ 460.998658][ T8969] RSP: 002b:00007f5b4c0b5e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 460.998677][ T8969] RAX: ffffffffffffffda RBX: 00007f5b4c0b5ef0 RCX: 00007f5b4b19038a
[ 460.998691][ T8969] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f5b4c0b5eb0
[ 460.998704][ T8969] RBP: 000020000001f680 R08: 00007f5b4c0b5ef0 R09: 0000000000000084
[ 460.998715][ T8969] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 460.998727][ T8969] R13: 00007f5b4c0b5eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 460.998757][ T8969]
[ 460.998782][ T8969] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 461.175581][ T930] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 317ms
[ 461.176108][ T930] gfs2: fsid=syz:syz.0: jid=0: Done
[ 461.185004][ T8967] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 461.227495][ T8969] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 461.400290][ T8971] loop4: detected capacity change from 0 to 32768
[ 461.686665][ T8961] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 461.774711][ T8971] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 461.800390][ T8971] CPU: 1 UID: 0 PID: 8971 Comm: syz.4.526 Not tainted syzkaller #0 PREEMPT(full)
[ 461.800416][ T8971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 461.800428][ T8971] Call Trace:
[ 461.800436][ T8971]
[ 461.800444][ T8971] dump_stack_lvl+0x189/0x250
[ 461.800475][ T8971] ? __pfx_dump_stack_lvl+0x10/0x10
[ 461.800497][ T8971] ? __pfx__printk+0x10/0x10
[ 461.800527][ T8971] ? kernfs_path_from_node+0x250/0x290
[ 461.800547][ T8971] ? kernfs_path_from_node+0x2f/0x290
[ 461.800572][ T8971] sysfs_create_dir_ns+0x259/0x280
[ 461.800595][ T8971] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 461.800617][ T8971] ? do_raw_spin_unlock+0x122/0x240
[ 461.800642][ T8971] kobject_add_internal+0x59f/0xb40
[ 461.800674][ T8971] kobject_init_and_add+0x125/0x190
[ 461.800701][ T8971] ? __pfx_kobject_init_and_add+0x10/0x10
[ 461.800725][ T8971] ? __raw_spin_lock_init+0x45/0x100
[ 461.800747][ T8971] ? __init_swait_queue_head+0xa9/0x150
[ 461.800771][ T8971] gfs2_sys_fs_add+0x234/0x450
[ 461.800794][ T8971] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 461.800822][ T8971] ? is_dynamic_key+0xd6/0x1c0
[ 461.800853][ T8971] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 461.800889][ T8971] gfs2_fill_super+0x13c0/0x20d0
[ 461.800934][ T8971] ? __pfx_gfs2_fill_super+0x10/0x10
[ 461.800963][ T8971] ? sb_set_blocksize+0x104/0x180
[ 461.800982][ T8971] ? setup_bdev_super+0x4c1/0x5b0
[ 461.801008][ T8971] get_tree_bdev_flags+0x40e/0x4d0
[ 461.801030][ T8971] ? __pfx_gfs2_fill_super+0x10/0x10
[ 461.801054][ T8971] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 461.801076][ T8971] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 461.801106][ T8971] gfs2_get_tree+0x51/0x1e0
[ 461.801133][ T8971] vfs_get_tree+0x92/0x2b0
[ 461.801160][ T8971] do_new_mount+0x302/0xa10
[ 461.801184][ T8971] ? apparmor_capable+0x137/0x1b0
[ 461.801212][ T8971] ? __pfx_do_new_mount+0x10/0x10
[ 461.801238][ T8971] ? ns_capable+0x8a/0xf0
[ 461.801266][ T8971] ? kmem_cache_free+0x19a/0x690
[ 461.801302][ T8971] __se_sys_mount+0x313/0x410
[ 461.801333][ T8971] ? __pfx___se_sys_mount+0x10/0x10
[ 461.801363][ T8971] ? do_syscall_64+0xbe/0xfa0
[ 461.801382][ T8971] ? __x64_sys_mount+0x20/0xc0
[ 461.801409][ T8971] do_syscall_64+0xfa/0xfa0
[ 461.801428][ T8971] ? lockdep_hardirqs_on+0x9c/0x150
[ 461.801447][ T8971] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 461.801466][ T8971] ? clear_bhb_loop+0x60/0xb0
[ 461.801489][ T8971] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 461.801507][ T8971] RIP: 0033:0x7f7eab79038a
[ 461.801525][ T8971] 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
[ 461.801541][ T8971] RSP: 002b:00007f7eac6e0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 461.801561][ T8971] RAX: ffffffffffffffda RBX: 00007f7eac6e0ef0 RCX: 00007f7eab79038a
[ 461.801576][ T8971] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f7eac6e0eb0
[ 461.801589][ T8971] RBP: 000020000001f680 R08: 00007f7eac6e0ef0 R09: 0000000000000084
[ 461.801601][ T8971] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 461.801613][ T8971] R13: 00007f7eac6e0eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 461.801645][ T8971]
[ 462.229082][ T8971] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 462.305772][ T8971] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 462.743129][ T8987] loop2: detected capacity change from 0 to 32768
[ 462.826923][ T8987] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 462.921086][ T8987] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 463.023104][ T8987] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 463.092892][ T6481] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 463.099706][ T6481] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 463.190909][ T8981] loop1: detected capacity change from 0 to 32768
[ 463.247635][ T8981] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 463.284681][ T8981] CPU: 0 UID: 0 PID: 8981 Comm: syz.1.527 Not tainted syzkaller #0 PREEMPT(full)
[ 463.284707][ T8981] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 463.284718][ T8981] Call Trace:
[ 463.284726][ T8981]
[ 463.284735][ T8981] dump_stack_lvl+0x189/0x250
[ 463.284766][ T8981] ? __pfx_dump_stack_lvl+0x10/0x10
[ 463.284788][ T8981] ? __pfx__printk+0x10/0x10
[ 463.284818][ T8981] ? kernfs_path_from_node+0x250/0x290
[ 463.284838][ T8981] ? kernfs_path_from_node+0x2f/0x290
[ 463.284860][ T8981] sysfs_create_dir_ns+0x259/0x280
[ 463.284884][ T8981] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 463.284907][ T8981] ? do_raw_spin_unlock+0x122/0x240
[ 463.284932][ T8981] kobject_add_internal+0x59f/0xb40
[ 463.284963][ T8981] kobject_init_and_add+0x125/0x190
[ 463.284991][ T8981] ? __pfx_kobject_init_and_add+0x10/0x10
[ 463.285015][ T8981] ? __raw_spin_lock_init+0x45/0x100
[ 463.285036][ T8981] ? __init_swait_queue_head+0xa9/0x150
[ 463.285060][ T8981] gfs2_sys_fs_add+0x234/0x450
[ 463.285084][ T8981] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 463.285111][ T8981] ? is_dynamic_key+0xd6/0x1c0
[ 463.285133][ T8981] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 463.285170][ T8981] gfs2_fill_super+0x13c0/0x20d0
[ 463.285211][ T8981] ? __pfx_gfs2_fill_super+0x10/0x10
[ 463.285240][ T8981] ? sb_set_blocksize+0x104/0x180
[ 463.285262][ T8981] ? setup_bdev_super+0x4c1/0x5b0
[ 463.285289][ T8981] get_tree_bdev_flags+0x40e/0x4d0
[ 463.285312][ T8981] ? __pfx_gfs2_fill_super+0x10/0x10
[ 463.285335][ T8981] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 463.285357][ T8981] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 463.285385][ T8981] gfs2_get_tree+0x51/0x1e0
[ 463.285411][ T8981] vfs_get_tree+0x92/0x2b0
[ 463.285436][ T8981] do_new_mount+0x302/0xa10
[ 463.285456][ T8981] ? apparmor_capable+0x137/0x1b0
[ 463.285482][ T8981] ? __pfx_do_new_mount+0x10/0x10
[ 463.285505][ T8981] ? ns_capable+0x8a/0xf0
[ 463.285532][ T8981] ? kmem_cache_free+0x19a/0x690
[ 463.285563][ T8981] __se_sys_mount+0x313/0x410
[ 463.285592][ T8981] ? __pfx___se_sys_mount+0x10/0x10
[ 463.285622][ T8981] ? do_syscall_64+0xbe/0xfa0
[ 463.285641][ T8981] ? __x64_sys_mount+0x20/0xc0
[ 463.285665][ T8981] do_syscall_64+0xfa/0xfa0
[ 463.285688][ T8981] ? lockdep_hardirqs_on+0x9c/0x150
[ 463.285706][ T8981] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 463.285723][ T8981] ? clear_bhb_loop+0x60/0xb0
[ 463.285751][ T8981] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 463.285769][ T8981] RIP: 0033:0x7f3eb939038a
[ 463.285787][ T8981] 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
[ 463.285803][ T8981] RSP: 002b:00007f3eba2cae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 463.285824][ T8981] RAX: ffffffffffffffda RBX: 00007f3eba2caef0 RCX: 00007f3eb939038a
[ 463.285837][ T8981] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3eba2caeb0
[ 463.285850][ T8981] RBP: 000020000001f680 R08: 00007f3eba2caef0 R09: 0000000000000084
[ 463.285862][ T8981] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 463.285874][ T8981] R13: 00007f3eba2caeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 463.285905][ T8981]
[ 463.285931][ T8981] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 463.375301][ T6481] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 275ms
[ 463.652023][ T8981] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 463.670002][ T6481] gfs2: fsid=syz:syz.0: jid=0: Done
[ 463.731142][ T8987] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 464.352646][ T8990] loop3: detected capacity change from 0 to 32768
[ 464.414965][ T8990] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 464.431191][ T8990] CPU: 1 UID: 0 PID: 8990 Comm: syz.3.529 Not tainted syzkaller #0 PREEMPT(full)
[ 464.431215][ T8990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 464.431226][ T8990] Call Trace:
[ 464.431234][ T8990]
[ 464.431242][ T8990] dump_stack_lvl+0x189/0x250
[ 464.431270][ T8990] ? __pfx_dump_stack_lvl+0x10/0x10
[ 464.431289][ T8990] ? __pfx__printk+0x10/0x10
[ 464.431318][ T8990] ? kernfs_path_from_node+0x250/0x290
[ 464.431338][ T8990] ? kernfs_path_from_node+0x2f/0x290
[ 464.431362][ T8990] sysfs_create_dir_ns+0x259/0x280
[ 464.431384][ T8990] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 464.431405][ T8990] ? do_raw_spin_unlock+0x122/0x240
[ 464.431431][ T8990] kobject_add_internal+0x59f/0xb40
[ 464.431460][ T8990] kobject_init_and_add+0x125/0x190
[ 464.431488][ T8990] ? __pfx_kobject_init_and_add+0x10/0x10
[ 464.431510][ T8990] ? __raw_spin_lock_init+0x45/0x100
[ 464.431532][ T8990] ? __init_swait_queue_head+0xa9/0x150
[ 464.431556][ T8990] gfs2_sys_fs_add+0x234/0x450
[ 464.431576][ T8990] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 464.431603][ T8990] ? is_dynamic_key+0xd6/0x1c0
[ 464.431631][ T8990] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 464.431673][ T8990] gfs2_fill_super+0x13c0/0x20d0
[ 464.431712][ T8990] ? __pfx_gfs2_fill_super+0x10/0x10
[ 464.431741][ T8990] ? sb_set_blocksize+0x104/0x180
[ 464.431763][ T8990] ? setup_bdev_super+0x4c1/0x5b0
[ 464.431792][ T8990] get_tree_bdev_flags+0x40e/0x4d0
[ 464.431816][ T8990] ? __pfx_gfs2_fill_super+0x10/0x10
[ 464.431840][ T8990] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 464.431862][ T8990] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 464.431892][ T8990] gfs2_get_tree+0x51/0x1e0
[ 464.431920][ T8990] vfs_get_tree+0x92/0x2b0
[ 464.431946][ T8990] do_new_mount+0x302/0xa10
[ 464.431970][ T8990] ? apparmor_capable+0x137/0x1b0
[ 464.431999][ T8990] ? __pfx_do_new_mount+0x10/0x10
[ 464.432024][ T8990] ? ns_capable+0x8a/0xf0
[ 464.432052][ T8990] ? kmem_cache_free+0x19a/0x690
[ 464.432087][ T8990] __se_sys_mount+0x313/0x410
[ 464.432120][ T8990] ? __pfx___se_sys_mount+0x10/0x10
[ 464.432150][ T8990] ? do_syscall_64+0xbe/0xfa0
[ 464.432168][ T8990] ? __x64_sys_mount+0x20/0xc0
[ 464.432196][ T8990] do_syscall_64+0xfa/0xfa0
[ 464.432213][ T8990] ? lockdep_hardirqs_on+0x9c/0x150
[ 464.432233][ T8990] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 464.432252][ T8990] ? clear_bhb_loop+0x60/0xb0
[ 464.432293][ T8990] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 464.432312][ T8990] RIP: 0033:0x7f5b4b19038a
[ 464.432330][ T8990] 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
[ 464.432346][ T8990] RSP: 002b:00007f5b4c0b5e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 464.432365][ T8990] RAX: ffffffffffffffda RBX: 00007f5b4c0b5ef0 RCX: 00007f5b4b19038a
[ 464.432378][ T8990] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f5b4c0b5eb0
[ 464.432391][ T8990] RBP: 000020000001f680 R08: 00007f5b4c0b5ef0 R09: 0000000000000084
[ 464.432403][ T8990] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 464.432415][ T8990] R13: 00007f5b4c0b5eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 464.432445][ T8990]
[ 464.432471][ T8990] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 464.772058][ T8990] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 464.875094][ T8994] loop4: detected capacity change from 0 to 32768
[ 464.972997][ T8994] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 464.986959][ T8994] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 465.108157][ T8994] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 465.152149][ T6481] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 465.171055][ T6481] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 465.279359][ T8998] loop0: detected capacity change from 0 to 32768
[ 465.377519][ T8998] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 465.403251][ T8998] CPU: 1 UID: 0 PID: 8998 Comm: syz.0.530 Not tainted syzkaller #0 PREEMPT(full)
[ 465.403276][ T8998] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 465.403288][ T8998] Call Trace:
[ 465.403296][ T8998]
[ 465.403305][ T8998] dump_stack_lvl+0x189/0x250
[ 465.403335][ T8998] ? __pfx_dump_stack_lvl+0x10/0x10
[ 465.403358][ T8998] ? __pfx__printk+0x10/0x10
[ 465.403389][ T8998] ? kernfs_path_from_node+0x250/0x290
[ 465.403410][ T8998] ? kernfs_path_from_node+0x2f/0x290
[ 465.403435][ T8998] sysfs_create_dir_ns+0x259/0x280
[ 465.403460][ T8998] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 465.403483][ T8998] ? do_raw_spin_unlock+0x122/0x240
[ 465.403509][ T8998] kobject_add_internal+0x59f/0xb40
[ 465.403547][ T8998] kobject_init_and_add+0x125/0x190
[ 465.403576][ T8998] ? __pfx_kobject_init_and_add+0x10/0x10
[ 465.403600][ T8998] ? __raw_spin_lock_init+0x45/0x100
[ 465.403621][ T8998] ? __init_swait_queue_head+0xa9/0x150
[ 465.403646][ T8998] gfs2_sys_fs_add+0x234/0x450
[ 465.403669][ T8998] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 465.403695][ T8998] ? is_dynamic_key+0xd6/0x1c0
[ 465.403718][ T8998] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 465.403755][ T8998] gfs2_fill_super+0x13c0/0x20d0
[ 465.403796][ T8998] ? __pfx_gfs2_fill_super+0x10/0x10
[ 465.403825][ T8998] ? sb_set_blocksize+0x104/0x180
[ 465.403847][ T8998] ? setup_bdev_super+0x4c1/0x5b0
[ 465.403875][ T8998] get_tree_bdev_flags+0x40e/0x4d0
[ 465.403900][ T8998] ? __pfx_gfs2_fill_super+0x10/0x10
[ 465.403924][ T8998] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 465.403946][ T8998] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 465.403976][ T8998] gfs2_get_tree+0x51/0x1e0
[ 465.404003][ T8998] vfs_get_tree+0x92/0x2b0
[ 465.404030][ T8998] do_new_mount+0x302/0xa10
[ 465.404054][ T8998] ? apparmor_capable+0x137/0x1b0
[ 465.404083][ T8998] ? __pfx_do_new_mount+0x10/0x10
[ 465.404109][ T8998] ? ns_capable+0x8a/0xf0
[ 465.404138][ T8998] ? kmem_cache_free+0x19a/0x690
[ 465.404175][ T8998] __se_sys_mount+0x313/0x410
[ 465.404208][ T8998] ? __pfx___se_sys_mount+0x10/0x10
[ 465.404239][ T8998] ? do_syscall_64+0xbe/0xfa0
[ 465.404257][ T8998] ? __x64_sys_mount+0x20/0xc0
[ 465.404285][ T8998] do_syscall_64+0xfa/0xfa0
[ 465.404303][ T8998] ? lockdep_hardirqs_on+0x9c/0x150
[ 465.404323][ T8998] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 465.404340][ T8998] ? clear_bhb_loop+0x60/0xb0
[ 465.404362][ T8998] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 465.404380][ T8998] RIP: 0033:0x7fb5c599038a
[ 465.404398][ T8998] 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
[ 465.404413][ T8998] RSP: 002b:00007fb5c67c3e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 465.404434][ T8998] RAX: ffffffffffffffda RBX: 00007fb5c67c3ef0 RCX: 00007fb5c599038a
[ 465.404448][ T8998] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb5c67c3eb0
[ 465.404461][ T8998] RBP: 000020000001f680 R08: 00007fb5c67c3ef0 R09: 0000000000000084
[ 465.404474][ T8998] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 465.404485][ T8998] R13: 00007fb5c67c3eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 465.404518][ T8998]
[ 465.404549][ T8998] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 465.753582][ T6481] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 582ms
[ 465.771217][ T6481] gfs2: fsid=syz:syz.0: jid=0: Done
[ 465.780548][ T8998] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 465.807540][ T8994] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 466.049208][ T9002] loop1: detected capacity change from 0 to 32768
[ 466.122150][ T9002] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 466.129572][ T9002] CPU: 0 UID: 0 PID: 9002 Comm: syz.1.532 Not tainted syzkaller #0 PREEMPT(full)
[ 466.129597][ T9002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 466.129608][ T9002] Call Trace:
[ 466.129617][ T9002]
[ 466.129625][ T9002] dump_stack_lvl+0x189/0x250
[ 466.129657][ T9002] ? __pfx_dump_stack_lvl+0x10/0x10
[ 466.129679][ T9002] ? __pfx__printk+0x10/0x10
[ 466.129710][ T9002] ? kernfs_path_from_node+0x250/0x290
[ 466.129731][ T9002] ? kernfs_path_from_node+0x2f/0x290
[ 466.129755][ T9002] sysfs_create_dir_ns+0x259/0x280
[ 466.129779][ T9002] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 466.129800][ T9002] ? do_raw_spin_unlock+0x122/0x240
[ 466.129826][ T9002] kobject_add_internal+0x59f/0xb40
[ 466.129858][ T9002] kobject_init_and_add+0x125/0x190
[ 466.129886][ T9002] ? __pfx_kobject_init_and_add+0x10/0x10
[ 466.129910][ T9002] ? __raw_spin_lock_init+0x45/0x100
[ 466.129932][ T9002] ? __init_swait_queue_head+0xa9/0x150
[ 466.129956][ T9002] gfs2_sys_fs_add+0x234/0x450
[ 466.129980][ T9002] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 466.130007][ T9002] ? is_dynamic_key+0xd6/0x1c0
[ 466.130029][ T9002] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 466.130067][ T9002] gfs2_fill_super+0x13c0/0x20d0
[ 466.130109][ T9002] ? __pfx_gfs2_fill_super+0x10/0x10
[ 466.130138][ T9002] ? sb_set_blocksize+0x104/0x180
[ 466.130161][ T9002] ? setup_bdev_super+0x4c1/0x5b0
[ 466.130189][ T9002] get_tree_bdev_flags+0x40e/0x4d0
[ 466.130219][ T9002] ? __pfx_gfs2_fill_super+0x10/0x10
[ 466.130244][ T9002] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 466.130266][ T9002] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 466.130296][ T9002] gfs2_get_tree+0x51/0x1e0
[ 466.130323][ T9002] vfs_get_tree+0x92/0x2b0
[ 466.130350][ T9002] do_new_mount+0x302/0xa10
[ 466.130374][ T9002] ? apparmor_capable+0x137/0x1b0
[ 466.130401][ T9002] ? __pfx_do_new_mount+0x10/0x10
[ 466.130427][ T9002] ? ns_capable+0x8a/0xf0
[ 466.130456][ T9002] ? kmem_cache_free+0x19a/0x690
[ 466.130492][ T9002] __se_sys_mount+0x313/0x410
[ 466.130523][ T9002] ? __pfx___se_sys_mount+0x10/0x10
[ 466.130553][ T9002] ? do_syscall_64+0xbe/0xfa0
[ 466.130571][ T9002] ? __x64_sys_mount+0x20/0xc0
[ 466.130599][ T9002] do_syscall_64+0xfa/0xfa0
[ 466.130617][ T9002] ? lockdep_hardirqs_on+0x9c/0x150
[ 466.130637][ T9002] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 466.130655][ T9002] ? clear_bhb_loop+0x60/0xb0
[ 466.130677][ T9002] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 466.130694][ T9002] RIP: 0033:0x7f3eb939038a
[ 466.130712][ T9002] 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
[ 466.130728][ T9002] RSP: 002b:00007f3eba2cae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 466.130749][ T9002] RAX: ffffffffffffffda RBX: 00007f3eba2caef0 RCX: 00007f3eb939038a
[ 466.130763][ T9002] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3eba2caeb0
[ 466.130776][ T9002] RBP: 000020000001f680 R08: 00007f3eba2caef0 R09: 0000000000000084
[ 466.130789][ T9002] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 466.130801][ T9002] R13: 00007f3eba2caeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 466.130834][ T9002]
[ 466.130860][ T9002] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 466.452581][ T9008] loop3: detected capacity change from 0 to 32768
[ 466.479808][ T9002] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 466.586733][ T9008] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 466.603735][ T9008] CPU: 0 UID: 0 PID: 9008 Comm: syz.3.534 Not tainted syzkaller #0 PREEMPT(full)
[ 466.603762][ T9008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 466.603774][ T9008] Call Trace:
[ 466.603782][ T9008]
[ 466.603790][ T9008] dump_stack_lvl+0x189/0x250
[ 466.603822][ T9008] ? __pfx_dump_stack_lvl+0x10/0x10
[ 466.603845][ T9008] ? __pfx__printk+0x10/0x10
[ 466.603875][ T9008] ? kernfs_path_from_node+0x250/0x290
[ 466.603896][ T9008] ? kernfs_path_from_node+0x2f/0x290
[ 466.603920][ T9008] sysfs_create_dir_ns+0x259/0x280
[ 466.603944][ T9008] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 466.603967][ T9008] ? do_raw_spin_unlock+0x122/0x240
[ 466.603992][ T9008] kobject_add_internal+0x59f/0xb40
[ 466.604023][ T9008] kobject_init_and_add+0x125/0x190
[ 466.604051][ T9008] ? __pfx_kobject_init_and_add+0x10/0x10
[ 466.604074][ T9008] ? __raw_spin_lock_init+0x45/0x100
[ 466.604194][ T9008] ? __init_swait_queue_head+0xa9/0x150
[ 466.604218][ T9008] gfs2_sys_fs_add+0x234/0x450
[ 466.604241][ T9008] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 466.604268][ T9008] ? is_dynamic_key+0xd6/0x1c0
[ 466.604290][ T9008] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 466.604333][ T9008] gfs2_fill_super+0x13c0/0x20d0
[ 466.604374][ T9008] ? __pfx_gfs2_fill_super+0x10/0x10
[ 466.604403][ T9008] ? sb_set_blocksize+0x104/0x180
[ 466.604425][ T9008] ? setup_bdev_super+0x4c1/0x5b0
[ 466.604453][ T9008] get_tree_bdev_flags+0x40e/0x4d0
[ 466.604475][ T9008] ? __pfx_gfs2_fill_super+0x10/0x10
[ 466.604497][ T9008] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 466.604517][ T9008] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 466.604545][ T9008] gfs2_get_tree+0x51/0x1e0
[ 466.604571][ T9008] vfs_get_tree+0x92/0x2b0
[ 466.604597][ T9008] do_new_mount+0x302/0xa10
[ 466.604620][ T9008] ? apparmor_capable+0x137/0x1b0
[ 466.604646][ T9008] ? __pfx_do_new_mount+0x10/0x10
[ 466.604672][ T9008] ? ns_capable+0x8a/0xf0
[ 466.604699][ T9008] ? kmem_cache_free+0x19a/0x690
[ 466.604734][ T9008] __se_sys_mount+0x313/0x410
[ 466.604767][ T9008] ? __pfx___se_sys_mount+0x10/0x10
[ 466.604797][ T9008] ? do_syscall_64+0xbe/0xfa0
[ 466.604815][ T9008] ? __x64_sys_mount+0x20/0xc0
[ 466.604844][ T9008] do_syscall_64+0xfa/0xfa0
[ 466.604862][ T9008] ? lockdep_hardirqs_on+0x9c/0x150
[ 466.604882][ T9008] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 466.604900][ T9008] ? clear_bhb_loop+0x60/0xb0
[ 466.604922][ T9008] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 466.604940][ T9008] RIP: 0033:0x7f5b4b19038a
[ 466.604958][ T9008] 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
[ 466.604973][ T9008] RSP: 002b:00007f5b4c0b5e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 466.604993][ T9008] RAX: ffffffffffffffda RBX: 00007f5b4c0b5ef0 RCX: 00007f5b4b19038a
[ 466.605007][ T9008] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f5b4c0b5eb0
[ 466.605019][ T9008] RBP: 000020000001f680 R08: 00007f5b4c0b5ef0 R09: 0000000000000084
[ 466.605032][ T9008] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 466.605044][ T9008] R13: 00007f5b4c0b5eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 466.605076][ T9008]
2025/09/13 13:20:42 executed programs: 530
[ 466.605113][ T9008] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 467.021250][ T9008] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 467.234866][ T9010] loop2: detected capacity change from 0 to 32768
[ 467.314600][ T9010] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 467.323019][ T9010] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 467.337856][ T9010] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 467.350550][ T930] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 467.358009][ T930] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 467.578757][ T930] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 220ms
[ 467.610898][ T930] gfs2: fsid=syz:syz.0: jid=0: Done
[ 467.647258][ T9010] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 468.108476][ T9018] loop0: detected capacity change from 0 to 32768
[ 468.169821][ T9018] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 468.289455][ T9018] CPU: 0 UID: 0 PID: 9018 Comm: syz.0.535 Not tainted syzkaller #0 PREEMPT(full)
[ 468.289483][ T9018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 468.289494][ T9018] Call Trace:
[ 468.289503][ T9018]
[ 468.289512][ T9018] dump_stack_lvl+0x189/0x250
[ 468.289543][ T9018] ? __pfx_dump_stack_lvl+0x10/0x10
[ 468.289564][ T9018] ? __pfx__printk+0x10/0x10
[ 468.289595][ T9018] ? kernfs_path_from_node+0x250/0x290
[ 468.289615][ T9018] ? kernfs_path_from_node+0x2f/0x290
[ 468.289640][ T9018] sysfs_create_dir_ns+0x259/0x280
[ 468.289663][ T9018] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 468.289686][ T9018] ? do_raw_spin_unlock+0x122/0x240
[ 468.289712][ T9018] kobject_add_internal+0x59f/0xb40
[ 468.289742][ T9018] kobject_init_and_add+0x125/0x190
[ 468.289770][ T9018] ? __pfx_kobject_init_and_add+0x10/0x10
[ 468.289794][ T9018] ? __raw_spin_lock_init+0x45/0x100
[ 468.289816][ T9018] ? __init_swait_queue_head+0xa9/0x150
[ 468.289840][ T9018] gfs2_sys_fs_add+0x234/0x450
[ 468.289863][ T9018] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 468.289890][ T9018] ? is_dynamic_key+0xd6/0x1c0
[ 468.289912][ T9018] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 468.289948][ T9018] gfs2_fill_super+0x13c0/0x20d0
[ 468.289988][ T9018] ? __pfx_gfs2_fill_super+0x10/0x10
[ 468.290029][ T9018] ? sb_set_blocksize+0x104/0x180
[ 468.290052][ T9018] ? setup_bdev_super+0x4c1/0x5b0
[ 468.290080][ T9018] get_tree_bdev_flags+0x40e/0x4d0
[ 468.290104][ T9018] ? __pfx_gfs2_fill_super+0x10/0x10
[ 468.290128][ T9018] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 468.290150][ T9018] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 468.290180][ T9018] gfs2_get_tree+0x51/0x1e0
[ 468.290207][ T9018] vfs_get_tree+0x92/0x2b0
[ 468.290233][ T9018] do_new_mount+0x302/0xa10
[ 468.290256][ T9018] ? apparmor_capable+0x137/0x1b0
[ 468.290283][ T9018] ? __pfx_do_new_mount+0x10/0x10
[ 468.290307][ T9018] ? ns_capable+0x8a/0xf0
[ 468.290336][ T9018] ? kmem_cache_free+0x19a/0x690
[ 468.290372][ T9018] __se_sys_mount+0x313/0x410
[ 468.290404][ T9018] ? __pfx___se_sys_mount+0x10/0x10
[ 468.290433][ T9018] ? do_syscall_64+0xbe/0xfa0
[ 468.290451][ T9018] ? __x64_sys_mount+0x20/0xc0
[ 468.290479][ T9018] do_syscall_64+0xfa/0xfa0
[ 468.290497][ T9018] ? lockdep_hardirqs_on+0x9c/0x150
[ 468.290516][ T9018] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 468.290534][ T9018] ? clear_bhb_loop+0x60/0xb0
[ 468.290556][ T9018] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 468.290574][ T9018] RIP: 0033:0x7fb5c599038a
[ 468.290592][ T9018] 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
[ 468.290607][ T9018] RSP: 002b:00007fb5c67c3e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 468.290626][ T9018] RAX: ffffffffffffffda RBX: 00007fb5c67c3ef0 RCX: 00007fb5c599038a
[ 468.290640][ T9018] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb5c67c3eb0
[ 468.290653][ T9018] RBP: 000020000001f680 R08: 00007fb5c67c3ef0 R09: 0000000000000084
[ 468.290666][ T9018] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 468.290678][ T9018] R13: 00007fb5c67c3eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 468.290711][ T9018]
[ 468.301524][ T9022] loop1: detected capacity change from 0 to 32768
[ 468.341152][ T9018] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 468.641306][ T9022] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 468.649569][ T9022] CPU: 1 UID: 0 PID: 9022 Comm: syz.1.537 Not tainted syzkaller #0 PREEMPT(full)
[ 468.649595][ T9022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 468.649607][ T9022] Call Trace:
[ 468.649615][ T9022]
[ 468.649624][ T9022] dump_stack_lvl+0x189/0x250
[ 468.649654][ T9022] ? __pfx_dump_stack_lvl+0x10/0x10
[ 468.649676][ T9022] ? __pfx__printk+0x10/0x10
[ 468.649705][ T9022] ? kernfs_path_from_node+0x250/0x290
[ 468.649726][ T9022] ? kernfs_path_from_node+0x2f/0x290
[ 468.649751][ T9022] sysfs_create_dir_ns+0x259/0x280
[ 468.649775][ T9022] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 468.649798][ T9022] ? do_raw_spin_unlock+0x122/0x240
[ 468.649824][ T9022] kobject_add_internal+0x59f/0xb40
[ 468.649856][ T9022] kobject_init_and_add+0x125/0x190
[ 468.649884][ T9022] ? __pfx_kobject_init_and_add+0x10/0x10
[ 468.649908][ T9022] ? __raw_spin_lock_init+0x45/0x100
[ 468.649930][ T9022] ? __init_swait_queue_head+0xa9/0x150
[ 468.649955][ T9022] gfs2_sys_fs_add+0x234/0x450
[ 468.649978][ T9022] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 468.650005][ T9022] ? is_dynamic_key+0xd6/0x1c0
[ 468.650027][ T9022] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 468.650063][ T9022] gfs2_fill_super+0x13c0/0x20d0
[ 468.650106][ T9022] ? __pfx_gfs2_fill_super+0x10/0x10
[ 468.650135][ T9022] ? sb_set_blocksize+0x104/0x180
[ 468.650157][ T9022] ? setup_bdev_super+0x4c1/0x5b0
[ 468.650185][ T9022] get_tree_bdev_flags+0x40e/0x4d0
[ 468.650210][ T9022] ? __pfx_gfs2_fill_super+0x10/0x10
[ 468.650241][ T9022] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 468.650263][ T9022] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 468.650293][ T9022] gfs2_get_tree+0x51/0x1e0
[ 468.650320][ T9022] vfs_get_tree+0x92/0x2b0
[ 468.650347][ T9022] do_new_mount+0x302/0xa10
[ 468.650371][ T9022] ? apparmor_capable+0x137/0x1b0
[ 468.650399][ T9022] ? __pfx_do_new_mount+0x10/0x10
[ 468.650424][ T9022] ? ns_capable+0x8a/0xf0
[ 468.650452][ T9022] ? kmem_cache_free+0x19a/0x690
[ 468.650488][ T9022] __se_sys_mount+0x313/0x410
[ 468.650520][ T9022] ? __pfx___se_sys_mount+0x10/0x10
[ 468.650551][ T9022] ? do_syscall_64+0xbe/0xfa0
[ 468.650570][ T9022] ? __x64_sys_mount+0x20/0xc0
[ 468.650598][ T9022] do_syscall_64+0xfa/0xfa0
[ 468.650619][ T9022] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 468.650636][ T9022] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 468.650654][ T9022] ? clear_bhb_loop+0x60/0xb0
[ 468.650675][ T9022] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 468.650694][ T9022] RIP: 0033:0x7f3eb939038a
[ 468.650711][ T9022] 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
[ 468.650727][ T9022] RSP: 002b:00007f3eba2cae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 468.650753][ T9022] RAX: ffffffffffffffda RBX: 00007f3eba2caef0 RCX: 00007f3eb939038a
[ 468.650766][ T9022] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f3eba2caeb0
[ 468.650780][ T9022] RBP: 000020000001f680 R08: 00007f3eba2caef0 R09: 0000000000000084
[ 468.650793][ T9022] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 468.650805][ T9022] R13: 00007f3eba2caeb0 R14: 000000000001f790 R15: 00002000000001c0
[ 468.650837][ T9022]
[ 468.650864][ T9022] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 468.817562][ T9018] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 468.824634][ T9022] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 469.070737][ T9026] loop4: detected capacity change from 0 to 32768
[ 469.202843][ T9026] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 469.285201][ T9026] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 469.388115][ T9026] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 469.416636][ T6428] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 469.426257][ T6428] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 469.614512][ T6428] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 188ms
[ 469.662174][ T6428] gfs2: fsid=syz:syz.0: jid=0: Done
[ 469.677438][ T9026] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 469.778429][ T9030] loop3: detected capacity change from 0 to 32768
[ 469.832431][ T9030] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 469.849195][ T9030] CPU: 1 UID: 0 PID: 9030 Comm: syz.3.538 Not tainted syzkaller #0 PREEMPT(full)
[ 469.849220][ T9030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 469.849231][ T9030] Call Trace:
[ 469.849239][ T9030]
[ 469.849248][ T9030] dump_stack_lvl+0x189/0x250
[ 469.849277][ T9030] ? __pfx_dump_stack_lvl+0x10/0x10
[ 469.849299][ T9030] ? __pfx__printk+0x10/0x10
[ 469.849329][ T9030] ? kernfs_path_from_node+0x250/0x290
[ 469.849348][ T9030] ? kernfs_path_from_node+0x2f/0x290
[ 469.849372][ T9030] sysfs_create_dir_ns+0x259/0x280
[ 469.849396][ T9030] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 469.849419][ T9030] ? do_raw_spin_unlock+0x122/0x240
[ 469.849444][ T9030] kobject_add_internal+0x59f/0xb40
[ 469.849473][ T9030] kobject_init_and_add+0x125/0x190
[ 469.849501][ T9030] ? __pfx_kobject_init_and_add+0x10/0x10
[ 469.849525][ T9030] ? __raw_spin_lock_init+0x45/0x100
[ 469.849547][ T9030] ? __init_swait_queue_head+0xa9/0x150
[ 469.849571][ T9030] gfs2_sys_fs_add+0x234/0x450
[ 469.849594][ T9030] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 469.849619][ T9030] ? is_dynamic_key+0xd6/0x1c0
[ 469.849640][ T9030] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 469.849675][ T9030] gfs2_fill_super+0x13c0/0x20d0
[ 469.849713][ T9030] ? __pfx_gfs2_fill_super+0x10/0x10
[ 469.849741][ T9030] ? sb_set_blocksize+0x104/0x180
[ 469.849762][ T9030] ? setup_bdev_super+0x4c1/0x5b0
[ 469.849788][ T9030] get_tree_bdev_flags+0x40e/0x4d0
[ 469.849812][ T9030] ? __pfx_gfs2_fill_super+0x10/0x10
[ 469.849834][ T9030] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 469.849851][ T9030] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 469.849874][ T9030] gfs2_get_tree+0x51/0x1e0
[ 469.849895][ T9030] vfs_get_tree+0x92/0x2b0
[ 469.849916][ T9030] do_new_mount+0x302/0xa10
[ 469.849938][ T9030] ? apparmor_capable+0x137/0x1b0
[ 469.849966][ T9030] ? __pfx_do_new_mount+0x10/0x10
[ 469.849991][ T9030] ? ns_capable+0x8a/0xf0
[ 469.850024][ T9030] ? kmem_cache_free+0x19a/0x690
[ 469.850060][ T9030] __se_sys_mount+0x313/0x410
[ 469.850101][ T9030] ? __pfx___se_sys_mount+0x10/0x10
[ 469.850131][ T9030] ? do_syscall_64+0xbe/0xfa0
[ 469.850149][ T9030] ? __x64_sys_mount+0x20/0xc0
[ 469.850178][ T9030] do_syscall_64+0xfa/0xfa0
[ 469.850196][ T9030] ? lockdep_hardirqs_on+0x9c/0x150
[ 469.850216][ T9030] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 469.850235][ T9030] ? clear_bhb_loop+0x60/0xb0
[ 469.850257][ T9030] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 469.850275][ T9030] RIP: 0033:0x7f5b4b19038a
[ 469.850293][ T9030] 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
[ 469.850309][ T9030] RSP: 002b:00007f5b4c0b5e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 469.850330][ T9030] RAX: ffffffffffffffda RBX: 00007f5b4c0b5ef0 RCX: 00007f5b4b19038a
[ 469.850343][ T9030] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f5b4c0b5eb0
[ 469.850357][ T9030] RBP: 000020000001f680 R08: 00007f5b4c0b5ef0 R09: 0000000000000084
[ 469.850370][ T9030] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 469.850383][ T9030] R13: 00007f5b4c0b5eb0 R14: 000000000001f790 R15: 00002000000001c0
[ 469.850412][ T9030]
[ 469.850608][ T9030] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 470.191343][ T9030] gfs2: fsid=syz:syz: error -17 adding sysfs files