2_sys_fs_add+0x234/0x450 [ 180.508024][ T7281] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 180.508050][ T7281] ? is_dynamic_key+0xd6/0x1c0 [ 180.508076][ T7281] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 180.508110][ T7281] gfs2_fill_super+0x13c0/0x20d0 [ 180.508150][ T7281] ? __pfx_gfs2_fill_super+0x10/0x10 [ 180.508176][ T7281] ? sb_set_blocksize+0x104/0x180 [ 180.508197][ T7281] ? setup_bdev_super+0x4c1/0x5b0 [ 180.508218][ T7281] get_tree_bdev_flags+0x40e/0x4d0 [ 180.508233][ T7281] ? __pfx_gfs2_fill_super+0x10/0x10 [ 180.508254][ T7281] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 180.508270][ T7281] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 180.508301][ T7281] gfs2_get_tree+0x51/0x1e0 [ 180.508326][ T7281] vfs_get_tree+0x92/0x2b0 [ 180.508346][ T7281] do_new_mount+0x302/0x9e0 [ 180.508364][ T7281] ? apparmor_capable+0x137/0x1b0 [ 180.508391][ T7281] ? __pfx_do_new_mount+0x10/0x10 [ 180.508410][ T7281] ? ns_capable+0x8a/0xf0 [ 180.508436][ T7281] ? kmem_cache_free+0x19b/0x690 [ 180.508465][ T7281] __se_sys_mount+0x313/0x410 [ 180.508490][ T7281] ? __pfx___se_sys_mount+0x10/0x10 [ 180.508514][ T7281] ? do_syscall_64+0xbe/0xfa0 [ 180.508531][ T7281] ? __x64_sys_mount+0x20/0xc0 [ 180.508552][ T7281] do_syscall_64+0xfa/0xfa0 [ 180.508568][ T7281] ? lockdep_hardirqs_on+0x9c/0x150 [ 180.508586][ T7281] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 180.508602][ T7281] ? clear_bhb_loop+0x60/0xb0 [ 180.508623][ T7281] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 180.508639][ T7281] RIP: 0033:0x7f49a9b772da [ 180.508654][ T7281] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 180.508668][ T7281] RSP: 002b:00007f49aa984e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 180.508693][ T7281] RAX: ffffffffffffffda RBX: 00007f49aa984f00 RCX: 00007f49a9b772da [ 180.508705][ T7281] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f49aa984ec0 [ 180.508717][ T7281] RBP: 00000000200124c0 R08: 00007f49aa984f00 R09: 0000000000000000 [ 180.508728][ T7281] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 180.508739][ T7281] R13: 00007f49aa984ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 180.508769][ T7281] [ 180.508913][ T7281] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 180.518381][ T7278] CPU: 1 UID: 0 PID: 7278 Comm: syz.2.91 Not tainted syzkaller #0 PREEMPT(full) [ 180.518405][ T7278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 180.518414][ T7278] Call Trace: [ 180.518421][ T7278] [ 180.518429][ T7278] dump_stack_lvl+0x189/0x250 [ 180.518454][ T7278] ? __pfx_dump_stack_lvl+0x10/0x10 [ 180.518471][ T7278] ? __pfx__printk+0x10/0x10 [ 180.518494][ T7278] ? kernfs_path_from_node+0x250/0x290 [ 180.518507][ T7278] ? kernfs_path_from_node+0x2f/0x290 [ 180.518523][ T7278] sysfs_create_dir_ns+0x259/0x280 [ 180.518547][ T7278] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 180.518570][ T7278] ? do_raw_spin_unlock+0x122/0x240 [ 180.518593][ T7278] kobject_add_internal+0x59f/0xb40 [ 180.518620][ T7278] kobject_init_and_add+0x125/0x190 [ 180.518644][ T7278] ? __pfx_kobject_init_and_add+0x10/0x10 [ 180.518665][ T7278] ? __raw_spin_lock_init+0x45/0x100 [ 180.518685][ T7278] ? __init_swait_queue_head+0xa9/0x150 [ 180.518708][ T7278] gfs2_sys_fs_add+0x234/0x450 [ 180.518731][ T7278] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 180.518756][ T7278] ? is_dynamic_key+0xd6/0x1c0 [ 180.518776][ T7278] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 180.518809][ T7278] gfs2_fill_super+0x13c0/0x20d0 [ 180.518859][ T7278] ? __pfx_gfs2_fill_super+0x10/0x10 [ 180.518887][ T7278] ? sb_set_blocksize+0x104/0x180 [ 180.518909][ T7278] ? setup_bdev_super+0x4c1/0x5b0 [ 180.518930][ T7278] get_tree_bdev_flags+0x40e/0x4d0 [ 180.518949][ T7278] ? __pfx_gfs2_fill_super+0x10/0x10 [ 180.518972][ T7278] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 180.518989][ T7278] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 180.519022][ T7278] gfs2_get_tree+0x51/0x1e0 [ 180.519050][ T7278] vfs_get_tree+0x92/0x2b0 [ 180.519069][ T7278] do_new_mount+0x302/0x9e0 [ 180.519088][ T7278] ? apparmor_capable+0x137/0x1b0 [ 180.519115][ T7278] ? __pfx_do_new_mount+0x10/0x10 [ 180.519135][ T7278] ? ns_capable+0x8a/0xf0 [ 180.519161][ T7278] ? kmem_cache_free+0x19b/0x690 [ 180.519191][ T7278] __se_sys_mount+0x313/0x410 [ 180.519217][ T7278] ? __pfx___se_sys_mount+0x10/0x10 [ 180.519240][ T7278] ? do_syscall_64+0xbe/0xfa0 [ 180.519257][ T7278] ? __x64_sys_mount+0x20/0xc0 [ 180.519279][ T7278] do_syscall_64+0xfa/0xfa0 [ 180.519296][ T7278] ? lockdep_hardirqs_on+0x9c/0x150 [ 180.519315][ T7278] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 180.519331][ T7278] ? clear_bhb_loop+0x60/0xb0 [ 180.519351][ T7278] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 180.519367][ T7278] RIP: 0033:0x7fe8263772da [ 180.519384][ T7278] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 180.519398][ T7278] RSP: 002b:00007fe8271a2e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 180.519417][ T7278] RAX: ffffffffffffffda RBX: 00007fe8271a2f00 RCX: 00007fe8263772da [ 180.519430][ T7278] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fe8271a2ec0 [ 180.519443][ T7278] RBP: 00000000200124c0 R08: 00007fe8271a2f00 R09: 0000000000000000 [ 180.519455][ T7278] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 180.519465][ T7278] R13: 00007fe8271a2ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 180.519496][ T7278] [ 180.519728][ T7278] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 180.651605][ T7281] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 180.714344][ T7278] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 180.865652][ T43] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 498ms [ 181.297338][ T7284] loop3: detected capacity change from 0 to 32768 [ 181.319357][ T7284] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 181.327110][ T43] gfs2: fsid=syz:syz.0: jid=0: Done [ 181.334384][ T7284] CPU: 1 UID: 0 PID: 7284 Comm: syz.3.92 Not tainted syzkaller #0 PREEMPT(full) [ 181.334408][ T7284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 181.334422][ T7284] Call Trace: [ 181.334430][ T7284] [ 181.334438][ T7284] dump_stack_lvl+0x189/0x250 [ 181.334475][ T7284] ? __pfx_dump_stack_lvl+0x10/0x10 [ 181.334494][ T7284] ? __pfx__printk+0x10/0x10 [ 181.334521][ T7284] ? kernfs_path_from_node+0x250/0x290 [ 181.334536][ T7284] ? kernfs_path_from_node+0x2f/0x290 [ 181.334556][ T7284] sysfs_create_dir_ns+0x259/0x280 [ 181.334582][ T7284] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 181.334606][ T7284] ? do_raw_spin_unlock+0x122/0x240 [ 181.334630][ T7284] kobject_add_internal+0x59f/0xb40 [ 181.334658][ T7284] kobject_init_and_add+0x125/0x190 [ 181.334683][ T7284] ? __pfx_kobject_init_and_add+0x10/0x10 [ 181.334704][ T7284] ? __raw_spin_lock_init+0x45/0x100 [ 181.334725][ T7284] ? __init_swait_queue_head+0xa9/0x150 [ 181.334746][ T7284] gfs2_sys_fs_add+0x234/0x450 [ 181.334770][ T7284] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 181.334796][ T7284] ? is_dynamic_key+0xd6/0x1c0 [ 181.334816][ T7284] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 181.334851][ T7284] gfs2_fill_super+0x13c0/0x20d0 [ 181.334890][ T7284] ? __pfx_gfs2_fill_super+0x10/0x10 [ 181.334916][ T7284] ? sb_set_blocksize+0x104/0x180 [ 181.334938][ T7284] ? setup_bdev_super+0x4c1/0x5b0 [ 181.334960][ T7284] get_tree_bdev_flags+0x40e/0x4d0 [ 181.334978][ T7284] ? __pfx_gfs2_fill_super+0x10/0x10 [ 181.335006][ T7284] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 181.335022][ T7284] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 181.335054][ T7284] gfs2_get_tree+0x51/0x1e0 [ 181.335080][ T7284] vfs_get_tree+0x92/0x2b0 [ 181.335101][ T7284] do_new_mount+0x302/0x9e0 [ 181.335118][ T7284] ? apparmor_capable+0x137/0x1b0 [ 181.335142][ T7284] ? __pfx_do_new_mount+0x10/0x10 [ 181.335159][ T7284] ? ns_capable+0x8a/0xf0 [ 181.335182][ T7284] ? kmem_cache_free+0x19b/0x690 [ 181.335210][ T7284] __se_sys_mount+0x313/0x410 [ 181.335235][ T7284] ? __pfx___se_sys_mount+0x10/0x10 [ 181.335256][ T7284] ? do_syscall_64+0xbe/0xfa0 [ 181.335270][ T7284] ? __x64_sys_mount+0x20/0xc0 [ 181.335288][ T7284] do_syscall_64+0xfa/0xfa0 [ 181.335303][ T7284] ? lockdep_hardirqs_on+0x9c/0x150 [ 181.335318][ T7284] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.335333][ T7284] ? clear_bhb_loop+0x60/0xb0 [ 181.335352][ T7284] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.335367][ T7284] RIP: 0033:0x7fbbdd5772da [ 181.335387][ T7284] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 181.335400][ T7284] RSP: 002b:00007fbbde38ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 181.335424][ T7284] RAX: ffffffffffffffda RBX: 00007fbbde38af00 RCX: 00007fbbdd5772da [ 181.335436][ T7284] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fbbde38aec0 [ 181.335446][ T7284] RBP: 00000000200124c0 R08: 00007fbbde38af00 R09: 0000000000000000 [ 181.335457][ T7284] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 181.335468][ T7284] R13: 00007fbbde38aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 181.335497][ T7284] [ 181.335521][ T7284] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 181.643943][ T7278] syz.2.91 (7278): drop_caches: 2 [ 181.650635][ T7266] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 181.652404][ T7284] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 181.705639][ T7278] syz.2.91 (7278): drop_caches: 2 [ 181.714801][ T7266] gfs2: fsid=syz:syz.0: can't create logd thread: -4 [ 181.789248][ T7281] syz.4.90 (7281): drop_caches: 2 [ 181.801989][ T7281] syz.4.90 (7281): drop_caches: 2 [ 182.111861][ T7284] syz.3.92 (7284): drop_caches: 2 [ 182.144995][ T7284] syz.3.92 (7284): drop_caches: 2 [ 182.158851][ T7294] loop1: detected capacity change from 0 to 32768 [ 182.200813][ T7294] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 182.279886][ T7294] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 182.404186][ T7294] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 182.437785][ T6579] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 182.471715][ T6579] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 182.669559][ T6579] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 197ms [ 182.679656][ T6579] gfs2: fsid=syz:syz.0: jid=0: Done [ 182.689819][ T7294] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 182.794616][ T7294] gfs2: fsid=syz:syz.0: found 1 quota changes [ 182.833932][ T7294] syz.1.93 (7294): drop_caches: 2 [ 182.854502][ T7294] syz.1.93 (7294): drop_caches: 2 2025/09/25 08:30:07 executed programs: 93 [ 183.093704][ T7310] loop3: detected capacity change from 0 to 32768 [ 183.126869][ T7310] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 183.171819][ T7300] loop2: detected capacity change from 0 to 32768 [ 183.180049][ T7310] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 183.202003][ T7300] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 183.212235][ T7300] CPU: 1 UID: 0 PID: 7300 Comm: syz.2.94 Not tainted syzkaller #0 PREEMPT(full) [ 183.212260][ T7300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 183.212270][ T7300] Call Trace: [ 183.212278][ T7300] [ 183.212285][ T7300] dump_stack_lvl+0x189/0x250 [ 183.212312][ T7300] ? __pfx_dump_stack_lvl+0x10/0x10 [ 183.212330][ T7300] ? __pfx__printk+0x10/0x10 [ 183.212355][ T7300] ? kernfs_path_from_node+0x250/0x290 [ 183.212370][ T7300] ? kernfs_path_from_node+0x2f/0x290 [ 183.212388][ T7300] sysfs_create_dir_ns+0x259/0x280 [ 183.212415][ T7300] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 183.212439][ T7300] ? do_raw_spin_unlock+0x122/0x240 [ 183.212463][ T7300] kobject_add_internal+0x59f/0xb40 [ 183.212491][ T7300] kobject_init_and_add+0x125/0x190 [ 183.212515][ T7300] ? __pfx_kobject_init_and_add+0x10/0x10 [ 183.212535][ T7300] ? __raw_spin_lock_init+0x45/0x100 [ 183.212555][ T7300] ? __init_swait_queue_head+0xa9/0x150 [ 183.212577][ T7300] gfs2_sys_fs_add+0x234/0x450 [ 183.212598][ T7300] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 183.212623][ T7300] ? is_dynamic_key+0xd6/0x1c0 [ 183.212652][ T7300] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 183.212683][ T7300] gfs2_fill_super+0x13c0/0x20d0 [ 183.212719][ T7300] ? __pfx_gfs2_fill_super+0x10/0x10 [ 183.212746][ T7300] ? sb_set_blocksize+0x104/0x180 [ 183.212768][ T7300] ? setup_bdev_super+0x4c1/0x5b0 [ 183.212790][ T7300] get_tree_bdev_flags+0x40e/0x4d0 [ 183.212807][ T7300] ? __pfx_gfs2_fill_super+0x10/0x10 [ 183.212829][ T7300] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 183.212844][ T7300] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 183.212874][ T7300] gfs2_get_tree+0x51/0x1e0 [ 183.212897][ T7300] vfs_get_tree+0x92/0x2b0 [ 183.212913][ T7300] do_new_mount+0x302/0x9e0 [ 183.212927][ T7300] ? apparmor_capable+0x137/0x1b0 [ 183.212952][ T7300] ? __pfx_do_new_mount+0x10/0x10 [ 183.212970][ T7300] ? ns_capable+0x8a/0xf0 [ 183.212996][ T7300] ? kmem_cache_free+0x19b/0x690 [ 183.213024][ T7300] __se_sys_mount+0x313/0x410 [ 183.213048][ T7300] ? __pfx___se_sys_mount+0x10/0x10 [ 183.213070][ T7300] ? do_syscall_64+0xbe/0xfa0 [ 183.213086][ T7300] ? __x64_sys_mount+0x20/0xc0 [ 183.213108][ T7300] do_syscall_64+0xfa/0xfa0 [ 183.213124][ T7300] ? lockdep_hardirqs_on+0x9c/0x150 [ 183.213142][ T7300] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.213157][ T7300] ? clear_bhb_loop+0x60/0xb0 [ 183.213177][ T7300] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.213192][ T7300] RIP: 0033:0x7fe8263772da [ 183.213207][ T7300] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 183.213221][ T7300] RSP: 002b:00007fe8271a2e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 183.213240][ T7300] RAX: ffffffffffffffda RBX: 00007fe8271a2f00 RCX: 00007fe8263772da [ 183.213253][ T7300] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fe8271a2ec0 [ 183.213264][ T7300] RBP: 00000000200124c0 R08: 00007fe8271a2f00 R09: 0000000000000000 [ 183.213275][ T7300] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 183.213284][ T7300] R13: 00007fe8271a2ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 183.213312][ T7300] [ 183.213507][ T7300] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 183.271606][ T7303] loop4: detected capacity change from 0 to 32768 [ 183.300710][ T7310] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 183.313701][ T7300] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 183.497571][ T7305] loop0: detected capacity change from 0 to 32768 [ 183.507958][ T6579] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 183.586732][ T6579] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 183.587459][ T7303] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 183.656378][ T7303] CPU: 0 UID: 0 PID: 7303 Comm: syz.4.96 Not tainted syzkaller #0 PREEMPT(full) [ 183.656400][ T7303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 183.656410][ T7303] Call Trace: [ 183.656417][ T7303] [ 183.656426][ T7303] dump_stack_lvl+0x189/0x250 [ 183.656454][ T7303] ? __pfx_dump_stack_lvl+0x10/0x10 [ 183.656472][ T7303] ? __pfx__printk+0x10/0x10 [ 183.656499][ T7303] ? kernfs_path_from_node+0x250/0x290 [ 183.656514][ T7303] ? kernfs_path_from_node+0x2f/0x290 [ 183.656533][ T7303] sysfs_create_dir_ns+0x259/0x280 [ 183.656558][ T7303] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 183.656582][ T7303] ? do_raw_spin_unlock+0x122/0x240 [ 183.656604][ T7303] kobject_add_internal+0x59f/0xb40 [ 183.656636][ T7303] kobject_init_and_add+0x125/0x190 [ 183.656662][ T7303] ? __pfx_kobject_init_and_add+0x10/0x10 [ 183.656684][ T7303] ? __raw_spin_lock_init+0x45/0x100 [ 183.656704][ T7303] ? __init_swait_queue_head+0xa9/0x150 [ 183.656726][ T7303] gfs2_sys_fs_add+0x234/0x450 [ 183.656749][ T7303] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 183.656775][ T7303] ? is_dynamic_key+0xd6/0x1c0 [ 183.656795][ T7303] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 183.656827][ T7303] gfs2_fill_super+0x13c0/0x20d0 [ 183.656874][ T7303] ? __pfx_gfs2_fill_super+0x10/0x10 [ 183.656900][ T7303] ? sb_set_blocksize+0x104/0x180 [ 183.656922][ T7303] ? setup_bdev_super+0x4c1/0x5b0 [ 183.656943][ T7303] get_tree_bdev_flags+0x40e/0x4d0 [ 183.656959][ T7303] ? __pfx_gfs2_fill_super+0x10/0x10 [ 183.656979][ T7303] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 183.656994][ T7303] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 183.657021][ T7303] gfs2_get_tree+0x51/0x1e0 [ 183.657047][ T7303] vfs_get_tree+0x92/0x2b0 [ 183.657068][ T7303] do_new_mount+0x302/0x9e0 [ 183.657085][ T7303] ? apparmor_capable+0x137/0x1b0 [ 183.657110][ T7303] ? __pfx_do_new_mount+0x10/0x10 [ 183.657129][ T7303] ? ns_capable+0x8a/0xf0 [ 183.657151][ T7303] ? kmem_cache_free+0x19b/0x690 [ 183.657179][ T7303] __se_sys_mount+0x313/0x410 [ 183.657203][ T7303] ? __pfx___se_sys_mount+0x10/0x10 [ 183.657224][ T7303] ? do_syscall_64+0xbe/0xfa0 [ 183.657238][ T7303] ? __x64_sys_mount+0x20/0xc0 [ 183.657257][ T7303] do_syscall_64+0xfa/0xfa0 [ 183.657272][ T7303] ? lockdep_hardirqs_on+0x9c/0x150 [ 183.657288][ T7303] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.657304][ T7303] ? clear_bhb_loop+0x60/0xb0 [ 183.657324][ T7303] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.657340][ T7303] RIP: 0033:0x7f49a9b772da [ 183.657356][ T7303] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 183.657371][ T7303] RSP: 002b:00007f49aa984e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 183.657391][ T7303] RAX: ffffffffffffffda RBX: 00007f49aa984f00 RCX: 00007f49a9b772da [ 183.657404][ T7303] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f49aa984ec0 [ 183.657416][ T7303] RBP: 00000000200124c0 R08: 00007f49aa984f00 R09: 0000000000000000 [ 183.657428][ T7303] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 183.657439][ T7303] R13: 00007f49aa984ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 183.657468][ T7303] [ 183.657584][ T7303] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 183.711006][ T7300] syz.2.94 (7300): drop_caches: 2 [ 183.774766][ T6579] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 188ms [ 183.804743][ T7300] syz.2.94 (7300): drop_caches: 2 [ 183.860960][ T7305] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 183.865864][ T7303] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 183.890759][ T7305] CPU: 0 UID: 0 PID: 7305 Comm: syz.0.95 Not tainted syzkaller #0 PREEMPT(full) [ 183.890783][ T7305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 183.890794][ T7305] Call Trace: [ 183.890801][ T7305] [ 183.890809][ T7305] dump_stack_lvl+0x189/0x250 [ 183.890842][ T7305] ? __pfx_dump_stack_lvl+0x10/0x10 [ 183.890858][ T7305] ? __pfx__printk+0x10/0x10 [ 183.890882][ T7305] ? kernfs_path_from_node+0x250/0x290 [ 183.890894][ T7305] ? kernfs_path_from_node+0x2f/0x290 [ 183.890912][ T7305] sysfs_create_dir_ns+0x259/0x280 [ 183.890937][ T7305] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 183.890959][ T7305] ? do_raw_spin_unlock+0x122/0x240 [ 183.890982][ T7305] kobject_add_internal+0x59f/0xb40 [ 183.891009][ T7305] kobject_init_and_add+0x125/0x190 [ 183.891033][ T7305] ? __pfx_kobject_init_and_add+0x10/0x10 [ 183.891054][ T7305] ? __raw_spin_lock_init+0x45/0x100 [ 183.891073][ T7305] ? __init_swait_queue_head+0xa9/0x150 [ 183.891095][ T7305] gfs2_sys_fs_add+0x234/0x450 [ 183.891117][ T7305] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 183.891143][ T7305] ? is_dynamic_key+0xd6/0x1c0 [ 183.891163][ T7305] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 183.891197][ T7305] gfs2_fill_super+0x13c0/0x20d0 [ 183.891234][ T7305] ? __pfx_gfs2_fill_super+0x10/0x10 [ 183.891259][ T7305] ? sb_set_blocksize+0x104/0x180 [ 183.891280][ T7305] ? setup_bdev_super+0x4c1/0x5b0 [ 183.891302][ T7305] get_tree_bdev_flags+0x40e/0x4d0 [ 183.891319][ T7305] ? __pfx_gfs2_fill_super+0x10/0x10 [ 183.891342][ T7305] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 183.891356][ T7305] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 183.891387][ T7305] gfs2_get_tree+0x51/0x1e0 [ 183.891412][ T7305] vfs_get_tree+0x92/0x2b0 [ 183.891432][ T7305] do_new_mount+0x302/0x9e0 [ 183.891448][ T7305] ? apparmor_capable+0x137/0x1b0 [ 183.891475][ T7305] ? __pfx_do_new_mount+0x10/0x10 [ 183.891494][ T7305] ? ns_capable+0x8a/0xf0 [ 183.891518][ T7305] ? kmem_cache_free+0x19b/0x690 [ 183.891546][ T7305] __se_sys_mount+0x313/0x410 [ 183.891570][ T7305] ? __pfx___se_sys_mount+0x10/0x10 [ 183.891592][ T7305] ? do_syscall_64+0xbe/0xfa0 [ 183.891607][ T7305] ? __x64_sys_mount+0x20/0xc0 [ 183.891628][ T7305] do_syscall_64+0xfa/0xfa0 [ 183.891644][ T7305] ? lockdep_hardirqs_on+0x9c/0x150 [ 183.891661][ T7305] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.891676][ T7305] ? clear_bhb_loop+0x60/0xb0 [ 183.891696][ T7305] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.891712][ T7305] RIP: 0033:0x7f7d585772da [ 183.891728][ T7305] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 183.891742][ T7305] RSP: 002b:00007f7d5934ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 183.891759][ T7305] RAX: ffffffffffffffda RBX: 00007f7d5934af00 RCX: 00007f7d585772da [ 183.891772][ T7305] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f7d5934aec0 [ 183.891784][ T7305] RBP: 00000000200124c0 R08: 00007f7d5934af00 R09: 0000000000000000 [ 183.891794][ T7305] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 183.891805][ T7305] R13: 00007f7d5934aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 183.891840][ T7305] [ 183.891864][ T7305] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 184.369565][ T6579] gfs2: fsid=syz:syz.0: jid=0: Done [ 184.375965][ T7310] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 184.390844][ T7305] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 184.545311][ T7310] gfs2: fsid=syz:syz.0: found 1 quota changes [ 184.583896][ T7310] syz.3.97 (7310): drop_caches: 2 [ 184.601124][ T7310] syz.3.97 (7310): drop_caches: 2 [ 184.604442][ T7303] syz.4.96 (7303): drop_caches: 2 [ 184.619540][ T7303] syz.4.96 (7303): drop_caches: 2 [ 184.685496][ T7305] syz.0.95 (7305): drop_caches: 2 [ 184.691192][ T7305] syz.0.95 (7305): drop_caches: 2 [ 185.411512][ T7323] loop1: detected capacity change from 0 to 32768 [ 185.480760][ T7323] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 185.509285][ T7323] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 185.536999][ T7323] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 185.593112][ T6579] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 185.619333][ T6579] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 185.662227][ T7326] loop2: detected capacity change from 0 to 32768 [ 185.734528][ T7326] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 185.770863][ T7326] CPU: 0 UID: 0 PID: 7326 Comm: syz.2.99 Not tainted syzkaller #0 PREEMPT(full) [ 185.770887][ T7326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 185.770898][ T7326] Call Trace: [ 185.770905][ T7326] [ 185.770912][ T7326] dump_stack_lvl+0x189/0x250 [ 185.770938][ T7326] ? __pfx_dump_stack_lvl+0x10/0x10 [ 185.770958][ T7326] ? __pfx__printk+0x10/0x10 [ 185.770982][ T7326] ? kernfs_path_from_node+0x250/0x290 [ 185.770996][ T7326] ? kernfs_path_from_node+0x2f/0x290 [ 185.771014][ T7326] sysfs_create_dir_ns+0x259/0x280 [ 185.771040][ T7326] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 185.771065][ T7326] ? do_raw_spin_unlock+0x122/0x240 [ 185.771089][ T7326] kobject_add_internal+0x59f/0xb40 [ 185.771115][ T7326] kobject_init_and_add+0x125/0x190 [ 185.771139][ T7326] ? __pfx_kobject_init_and_add+0x10/0x10 [ 185.771159][ T7326] ? __raw_spin_lock_init+0x45/0x100 [ 185.771178][ T7326] ? __init_swait_queue_head+0xa9/0x150 [ 185.771201][ T7326] gfs2_sys_fs_add+0x234/0x450 [ 185.771222][ T7326] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 185.771247][ T7326] ? is_dynamic_key+0xd6/0x1c0 [ 185.771268][ T7326] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 185.771301][ T7326] gfs2_fill_super+0x13c0/0x20d0 [ 185.771343][ T7326] ? __pfx_gfs2_fill_super+0x10/0x10 [ 185.771369][ T7326] ? sb_set_blocksize+0x104/0x180 [ 185.771391][ T7326] ? setup_bdev_super+0x4c1/0x5b0 [ 185.771413][ T7326] get_tree_bdev_flags+0x40e/0x4d0 [ 185.771431][ T7326] ? __pfx_gfs2_fill_super+0x10/0x10 [ 185.771454][ T7326] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 185.771470][ T7326] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 185.771501][ T7326] gfs2_get_tree+0x51/0x1e0 [ 185.771525][ T7326] vfs_get_tree+0x92/0x2b0 [ 185.771552][ T7326] do_new_mount+0x302/0x9e0 [ 185.771570][ T7326] ? apparmor_capable+0x137/0x1b0 [ 185.771594][ T7326] ? __pfx_do_new_mount+0x10/0x10 [ 185.771613][ T7326] ? ns_capable+0x8a/0xf0 [ 185.771636][ T7326] ? kmem_cache_free+0x19b/0x690 [ 185.771662][ T7326] __se_sys_mount+0x313/0x410 [ 185.771684][ T7326] ? __pfx___se_sys_mount+0x10/0x10 [ 185.771705][ T7326] ? do_syscall_64+0xbe/0xfa0 [ 185.771718][ T7326] ? __x64_sys_mount+0x20/0xc0 [ 185.771736][ T7326] do_syscall_64+0xfa/0xfa0 [ 185.771751][ T7326] ? lockdep_hardirqs_on+0x9c/0x150 [ 185.771770][ T7326] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 185.771786][ T7326] ? clear_bhb_loop+0x60/0xb0 [ 185.771807][ T7326] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 185.771823][ T7326] RIP: 0033:0x7fe8263772da [ 185.771839][ T7326] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 185.771857][ T7326] RSP: 002b:00007fe8271a2e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 185.771876][ T7326] RAX: ffffffffffffffda RBX: 00007fe8271a2f00 RCX: 00007fe8263772da [ 185.771889][ T7326] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fe8271a2ec0 [ 185.771900][ T7326] RBP: 00000000200124c0 R08: 00007fe8271a2f00 R09: 0000000000000000 [ 185.771911][ T7326] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 185.771922][ T7326] R13: 00007fe8271a2ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 185.771950][ T7326] [ 185.771977][ T7326] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 185.962943][ T7330] loop4: detected capacity change from 0 to 32768 [ 186.135661][ T7330] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 186.139120][ T7326] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 186.154702][ T6579] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 535ms [ 186.169157][ T7330] CPU: 0 UID: 0 PID: 7330 Comm: syz.4.101 Not tainted syzkaller #0 PREEMPT(full) [ 186.169182][ T7330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 186.169190][ T7330] Call Trace: [ 186.169197][ T7330] [ 186.169205][ T7330] dump_stack_lvl+0x189/0x250 [ 186.169231][ T7330] ? __pfx_dump_stack_lvl+0x10/0x10 [ 186.169250][ T7330] ? __pfx__printk+0x10/0x10 [ 186.169274][ T7330] ? kernfs_path_from_node+0x250/0x290 [ 186.169289][ T7330] ? kernfs_path_from_node+0x2f/0x290 [ 186.169309][ T7330] sysfs_create_dir_ns+0x259/0x280 [ 186.169333][ T7330] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 186.169355][ T7330] ? do_raw_spin_unlock+0x122/0x240 [ 186.169379][ T7330] kobject_add_internal+0x59f/0xb40 [ 186.169407][ T7330] kobject_init_and_add+0x125/0x190 [ 186.169431][ T7330] ? __pfx_kobject_init_and_add+0x10/0x10 [ 186.169451][ T7330] ? __raw_spin_lock_init+0x45/0x100 [ 186.169471][ T7330] ? __init_swait_queue_head+0xa9/0x150 [ 186.169495][ T7330] gfs2_sys_fs_add+0x234/0x450 [ 186.169516][ T7330] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 186.169542][ T7330] ? is_dynamic_key+0xd6/0x1c0 [ 186.169562][ T7330] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 186.169591][ T7330] gfs2_fill_super+0x13c0/0x20d0 [ 186.169631][ T7330] ? __pfx_gfs2_fill_super+0x10/0x10 [ 186.169658][ T7330] ? sb_set_blocksize+0x104/0x180 [ 186.169688][ T7330] ? setup_bdev_super+0x4c1/0x5b0 [ 186.169711][ T7330] get_tree_bdev_flags+0x40e/0x4d0 [ 186.169729][ T7330] ? __pfx_gfs2_fill_super+0x10/0x10 [ 186.169751][ T7330] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 186.169766][ T7330] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 186.169798][ T7330] gfs2_get_tree+0x51/0x1e0 [ 186.169823][ T7330] vfs_get_tree+0x92/0x2b0 [ 186.169844][ T7330] do_new_mount+0x302/0x9e0 [ 186.169862][ T7330] ? apparmor_capable+0x137/0x1b0 [ 186.169888][ T7330] ? __pfx_do_new_mount+0x10/0x10 [ 186.169908][ T7330] ? ns_capable+0x8a/0xf0 [ 186.169933][ T7330] ? kmem_cache_free+0x19b/0x690 [ 186.169961][ T7330] __se_sys_mount+0x313/0x410 [ 186.169987][ T7330] ? __pfx___se_sys_mount+0x10/0x10 [ 186.170010][ T7330] ? do_syscall_64+0xbe/0xfa0 [ 186.170025][ T7330] ? __x64_sys_mount+0x20/0xc0 [ 186.170045][ T7330] do_syscall_64+0xfa/0xfa0 [ 186.170061][ T7330] ? lockdep_hardirqs_on+0x9c/0x150 [ 186.170079][ T7330] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 186.170095][ T7330] ? clear_bhb_loop+0x60/0xb0 [ 186.170116][ T7330] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 186.170132][ T7330] RIP: 0033:0x7f49a9b772da [ 186.170147][ T7330] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 186.170161][ T7330] RSP: 002b:00007f49aa984e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 186.170180][ T7330] RAX: ffffffffffffffda RBX: 00007f49aa984f00 RCX: 00007f49a9b772da [ 186.170192][ T7330] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f49aa984ec0 [ 186.170204][ T7330] RBP: 00000000200124c0 R08: 00007f49aa984f00 R09: 0000000000000000 [ 186.170216][ T7330] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 186.170227][ T7330] R13: 00007f49aa984ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 186.170255][ T7330] [ 186.170281][ T7330] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 186.205368][ T7334] loop3: detected capacity change from 0 to 32768 [ 186.226977][ T6579] gfs2: fsid=syz:syz.0: jid=0: Done [ 186.283534][ T7330] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 186.304548][ T7332] loop0: detected capacity change from 0 to 32768 [ 186.468842][ T7330] syz.4.101 (7330): drop_caches: 2 [ 186.509407][ T7323] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 186.580824][ T7326] syz.2.99 (7326): drop_caches: 2 [ 186.587199][ T7326] syz.2.99 (7326): drop_caches: 2 [ 186.623806][ T7334] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 186.637991][ T7332] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 186.668444][ T7334] CPU: 1 UID: 0 PID: 7334 Comm: syz.3.100 Not tainted syzkaller #0 PREEMPT(full) [ 186.668469][ T7334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 186.668479][ T7334] Call Trace: [ 186.668486][ T7334] [ 186.668493][ T7334] dump_stack_lvl+0x189/0x250 [ 186.668521][ T7334] ? __pfx_dump_stack_lvl+0x10/0x10 [ 186.668540][ T7334] ? __pfx__printk+0x10/0x10 [ 186.668566][ T7334] ? kernfs_path_from_node+0x250/0x290 [ 186.668582][ T7334] ? kernfs_path_from_node+0x2f/0x290 [ 186.668601][ T7334] sysfs_create_dir_ns+0x259/0x280 [ 186.668627][ T7334] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 186.668650][ T7334] ? do_raw_spin_unlock+0x122/0x240 [ 186.668674][ T7334] kobject_add_internal+0x59f/0xb40 [ 186.668708][ T7334] kobject_init_and_add+0x125/0x190 [ 186.668734][ T7334] ? __pfx_kobject_init_and_add+0x10/0x10 [ 186.668754][ T7334] ? __raw_spin_lock_init+0x45/0x100 [ 186.668774][ T7334] ? __init_swait_queue_head+0xa9/0x150 [ 186.668797][ T7334] gfs2_sys_fs_add+0x234/0x450 [ 186.668820][ T7334] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 186.668845][ T7334] ? is_dynamic_key+0xd6/0x1c0 [ 186.668865][ T7334] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 186.668898][ T7334] gfs2_fill_super+0x13c0/0x20d0 [ 186.668937][ T7334] ? __pfx_gfs2_fill_super+0x10/0x10 [ 186.668965][ T7334] ? sb_set_blocksize+0x104/0x180 [ 186.668994][ T7334] ? setup_bdev_super+0x4c1/0x5b0 [ 186.669017][ T7334] get_tree_bdev_flags+0x40e/0x4d0 [ 186.669035][ T7334] ? __pfx_gfs2_fill_super+0x10/0x10 [ 186.669062][ T7334] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 186.669076][ T7334] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 186.669103][ T7334] gfs2_get_tree+0x51/0x1e0 [ 186.669128][ T7334] vfs_get_tree+0x92/0x2b0 [ 186.669148][ T7334] do_new_mount+0x302/0x9e0 [ 186.669165][ T7334] ? apparmor_capable+0x137/0x1b0 [ 186.669193][ T7334] ? __pfx_do_new_mount+0x10/0x10 [ 186.669211][ T7334] ? ns_capable+0x8a/0xf0 [ 186.669236][ T7334] ? kmem_cache_free+0x19b/0x690 [ 186.669278][ T7334] __se_sys_mount+0x313/0x410 [ 186.669304][ T7334] ? __pfx___se_sys_mount+0x10/0x10 [ 186.669327][ T7334] ? do_syscall_64+0xbe/0xfa0 [ 186.669343][ T7334] ? __x64_sys_mount+0x20/0xc0 [ 186.669363][ T7334] do_syscall_64+0xfa/0xfa0 [ 186.669379][ T7334] ? lockdep_hardirqs_on+0x9c/0x150 [ 186.669402][ T7334] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 186.669418][ T7334] ? clear_bhb_loop+0x60/0xb0 [ 186.669438][ T7334] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 186.669454][ T7334] RIP: 0033:0x7fbbdd5772da [ 186.669470][ T7334] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 186.669485][ T7334] RSP: 002b:00007fbbde38ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 186.669504][ T7334] RAX: ffffffffffffffda RBX: 00007fbbde38af00 RCX: 00007fbbdd5772da [ 186.669517][ T7334] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fbbde38aec0 [ 186.669529][ T7334] RBP: 00000000200124c0 R08: 00007fbbde38af00 R09: 0000000000000000 [ 186.669539][ T7334] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 186.669550][ T7334] R13: 00007fbbde38aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 186.669579][ T7334] [ 186.715489][ T7330] syz.4.101 (7330): drop_caches: 2 [ 186.780336][ T7332] CPU: 1 UID: 0 PID: 7332 Comm: syz.0.102 Not tainted syzkaller #0 PREEMPT(full) [ 186.780377][ T7332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 186.780388][ T7332] Call Trace: [ 186.780395][ T7332] [ 186.780403][ T7332] dump_stack_lvl+0x189/0x250 [ 186.780429][ T7332] ? __pfx_dump_stack_lvl+0x10/0x10 [ 186.780448][ T7332] ? __pfx__printk+0x10/0x10 [ 186.780474][ T7332] ? kernfs_path_from_node+0x250/0x290 [ 186.780489][ T7332] ? kernfs_path_from_node+0x2f/0x290 [ 186.780507][ T7332] sysfs_create_dir_ns+0x259/0x280 [ 186.780533][ T7332] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 186.780556][ T7332] ? do_raw_spin_unlock+0x122/0x240 [ 186.780579][ T7332] kobject_add_internal+0x59f/0xb40 [ 186.780606][ T7332] kobject_init_and_add+0x125/0x190 [ 186.780631][ T7332] ? __pfx_kobject_init_and_add+0x10/0x10 [ 186.780651][ T7332] ? __raw_spin_lock_init+0x45/0x100 [ 186.780670][ T7332] ? __init_swait_queue_head+0xa9/0x150 [ 186.780698][ T7332] gfs2_sys_fs_add+0x234/0x450 [ 186.780721][ T7332] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 186.780746][ T7332] ? is_dynamic_key+0xd6/0x1c0 [ 186.780765][ T7332] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 186.780798][ T7332] gfs2_fill_super+0x13c0/0x20d0 [ 186.780839][ T7332] ? __pfx_gfs2_fill_super+0x10/0x10 [ 186.780865][ T7332] ? sb_set_blocksize+0x104/0x180 [ 186.780886][ T7332] ? setup_bdev_super+0x4c1/0x5b0 [ 186.780907][ T7332] get_tree_bdev_flags+0x40e/0x4d0 [ 186.780925][ T7332] ? __pfx_gfs2_fill_super+0x10/0x10 [ 186.780947][ T7332] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 186.780962][ T7332] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 186.780993][ T7332] gfs2_get_tree+0x51/0x1e0 [ 186.781018][ T7332] vfs_get_tree+0x92/0x2b0 [ 186.781038][ T7332] do_new_mount+0x302/0x9e0 [ 186.781054][ T7332] ? apparmor_capable+0x137/0x1b0 [ 186.781082][ T7332] ? __pfx_do_new_mount+0x10/0x10 [ 186.781103][ T7332] ? ns_capable+0x8a/0xf0 [ 186.781128][ T7332] ? kmem_cache_free+0x19b/0x690 [ 186.781155][ T7332] __se_sys_mount+0x313/0x410 [ 186.781179][ T7332] ? __pfx___se_sys_mount+0x10/0x10 [ 186.781202][ T7332] ? do_syscall_64+0xbe/0xfa0 [ 186.781221][ T7332] ? __x64_sys_mount+0x20/0xc0 [ 186.781241][ T7332] do_syscall_64+0xfa/0xfa0 [ 186.781257][ T7332] ? lockdep_hardirqs_on+0x9c/0x150 [ 186.781274][ T7332] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 186.781290][ T7332] ? clear_bhb_loop+0x60/0xb0 [ 186.781309][ T7332] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 186.781325][ T7332] RIP: 0033:0x7f7d585772da [ 186.781341][ T7332] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 186.781354][ T7332] RSP: 002b:00007f7d5934ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 186.781373][ T7332] RAX: ffffffffffffffda RBX: 00007f7d5934af00 RCX: 00007f7d585772da [ 186.781388][ T7332] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f7d5934aec0 [ 186.781400][ T7332] RBP: 00000000200124c0 R08: 00007f7d5934af00 R09: 0000000000000000 [ 186.781411][ T7332] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 186.781421][ T7332] R13: 00007f7d5934aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 186.781449][ T7332] [ 186.781588][ T7332] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 186.784397][ T7334] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 186.798211][ T7332] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 186.923387][ T7323] gfs2: fsid=syz:syz.0: found 1 quota changes [ 186.936755][ T7334] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 187.434862][ T7332] syz.0.102 (7332): drop_caches: 2 [ 187.495385][ T7332] syz.0.102 (7332): drop_caches: 2 [ 187.912534][ T7334] syz.3.100 (7334): drop_caches: 2 [ 187.939693][ T7334] syz.3.100 (7334): drop_caches: 2 2025/09/25 08:30:12 executed programs: 102 [ 188.287642][ T7351] loop4: detected capacity change from 0 to 32768 [ 188.371374][ T7351] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 188.415321][ T7349] loop2: detected capacity change from 0 to 32768 [ 188.422242][ T7351] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 188.484558][ T7351] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 188.501475][ T6579] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 188.522887][ T7349] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 188.533342][ T6579] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 188.579680][ T7349] CPU: 0 UID: 0 PID: 7349 Comm: syz.2.104 Not tainted syzkaller #0 PREEMPT(full) [ 188.579705][ T7349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 188.579713][ T7349] Call Trace: [ 188.579720][ T7349] [ 188.579727][ T7349] dump_stack_lvl+0x189/0x250 [ 188.579752][ T7349] ? __pfx_dump_stack_lvl+0x10/0x10 [ 188.579770][ T7349] ? __pfx__printk+0x10/0x10 [ 188.579793][ T7349] ? kernfs_path_from_node+0x250/0x290 [ 188.579807][ T7349] ? kernfs_path_from_node+0x2f/0x290 [ 188.579825][ T7349] sysfs_create_dir_ns+0x259/0x280 [ 188.579860][ T7349] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 188.579884][ T7349] ? do_raw_spin_unlock+0x122/0x240 [ 188.579905][ T7349] kobject_add_internal+0x59f/0xb40 [ 188.579934][ T7349] kobject_init_and_add+0x125/0x190 [ 188.579959][ T7349] ? __pfx_kobject_init_and_add+0x10/0x10 [ 188.579979][ T7349] ? __raw_spin_lock_init+0x45/0x100 [ 188.580005][ T7349] ? __init_swait_queue_head+0xa9/0x150 [ 188.580027][ T7349] gfs2_sys_fs_add+0x234/0x450 [ 188.580050][ T7349] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 188.580076][ T7349] ? is_dynamic_key+0xd6/0x1c0 [ 188.580096][ T7349] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 188.580126][ T7349] gfs2_fill_super+0x13c0/0x20d0 [ 188.580165][ T7349] ? __pfx_gfs2_fill_super+0x10/0x10 [ 188.580192][ T7349] ? sb_set_blocksize+0x104/0x180 [ 188.580214][ T7349] ? setup_bdev_super+0x4c1/0x5b0 [ 188.580249][ T7349] get_tree_bdev_flags+0x40e/0x4d0 [ 188.580264][ T7349] ? __pfx_gfs2_fill_super+0x10/0x10 [ 188.580287][ T7349] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 188.580303][ T7349] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 188.580338][ T7349] gfs2_get_tree+0x51/0x1e0 [ 188.580364][ T7349] vfs_get_tree+0x92/0x2b0 [ 188.580384][ T7349] do_new_mount+0x302/0x9e0 [ 188.580401][ T7349] ? apparmor_capable+0x137/0x1b0 [ 188.580429][ T7349] ? __pfx_do_new_mount+0x10/0x10 [ 188.580447][ T7349] ? ns_capable+0x8a/0xf0 [ 188.580472][ T7349] ? kmem_cache_free+0x19b/0x690 [ 188.580500][ T7349] __se_sys_mount+0x313/0x410 [ 188.580531][ T7349] ? __pfx___se_sys_mount+0x10/0x10 [ 188.580558][ T7349] ? do_syscall_64+0xbe/0xfa0 [ 188.580574][ T7349] ? __x64_sys_mount+0x20/0xc0 [ 188.580595][ T7349] do_syscall_64+0xfa/0xfa0 [ 188.580612][ T7349] ? lockdep_hardirqs_on+0x9c/0x150 [ 188.580630][ T7349] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 188.580646][ T7349] ? clear_bhb_loop+0x60/0xb0 [ 188.580666][ T7349] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 188.580682][ T7349] RIP: 0033:0x7fe8263772da [ 188.580700][ T7349] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 188.580713][ T7349] RSP: 002b:00007fe8271a2e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 188.580733][ T7349] RAX: ffffffffffffffda RBX: 00007fe8271a2f00 RCX: 00007fe8263772da [ 188.580746][ T7349] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fe8271a2ec0 [ 188.580780][ T7349] RBP: 00000000200124c0 R08: 00007fe8271a2f00 R09: 0000000000000000 [ 188.580790][ T7349] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 188.580800][ T7349] R13: 00007fe8271a2ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 188.580830][ T7349] [ 188.580856][ T7349] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 188.630218][ T7354] loop0: detected capacity change from 0 to 32768 [ 188.781441][ T7349] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 188.999619][ T7354] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 189.033565][ T6579] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 500ms [ 189.047208][ T7354] CPU: 1 UID: 0 PID: 7354 Comm: syz.0.106 Not tainted syzkaller #0 PREEMPT(full) [ 189.047231][ T7354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 189.047242][ T7354] Call Trace: [ 189.047249][ T7354] [ 189.047266][ T7354] dump_stack_lvl+0x189/0x250 [ 189.047293][ T7354] ? __pfx_dump_stack_lvl+0x10/0x10 [ 189.047310][ T7354] ? __pfx__printk+0x10/0x10 [ 189.047335][ T7354] ? kernfs_path_from_node+0x250/0x290 [ 189.047348][ T7354] ? kernfs_path_from_node+0x2f/0x290 [ 189.047366][ T7354] sysfs_create_dir_ns+0x259/0x280 [ 189.047391][ T7354] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 189.047414][ T7354] ? do_raw_spin_unlock+0x122/0x240 [ 189.047437][ T7354] kobject_add_internal+0x59f/0xb40 [ 189.047464][ T7354] kobject_init_and_add+0x125/0x190 [ 189.047489][ T7354] ? __pfx_kobject_init_and_add+0x10/0x10 [ 189.047507][ T7354] ? __raw_spin_lock_init+0x45/0x100 [ 189.047526][ T7354] ? __init_swait_queue_head+0xa9/0x150 [ 189.047546][ T7354] gfs2_sys_fs_add+0x234/0x450 [ 189.047567][ T7354] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 189.047592][ T7354] ? is_dynamic_key+0xd6/0x1c0 [ 189.047610][ T7354] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 189.047638][ T7354] gfs2_fill_super+0x13c0/0x20d0 [ 189.047674][ T7354] ? __pfx_gfs2_fill_super+0x10/0x10 [ 189.047697][ T7354] ? sb_set_blocksize+0x104/0x180 [ 189.047717][ T7354] ? setup_bdev_super+0x4c1/0x5b0 [ 189.047737][ T7354] get_tree_bdev_flags+0x40e/0x4d0 [ 189.047755][ T7354] ? __pfx_gfs2_fill_super+0x10/0x10 [ 189.047776][ T7354] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 189.047792][ T7354] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 189.047807][ T6579] gfs2: fsid=syz:syz.0: jid=0: Done [ 189.047821][ T7354] gfs2_get_tree+0x51/0x1e0 [ 189.047844][ T7354] vfs_get_tree+0x92/0x2b0 [ 189.047859][ T7354] do_new_mount+0x302/0x9e0 [ 189.047875][ T7354] ? apparmor_capable+0x137/0x1b0 [ 189.047901][ T7354] ? __pfx_do_new_mount+0x10/0x10 [ 189.047920][ T7354] ? ns_capable+0x8a/0xf0 [ 189.047945][ T7354] ? kmem_cache_free+0x19b/0x690 [ 189.047972][ T7354] __se_sys_mount+0x313/0x410 [ 189.047997][ T7354] ? __pfx___se_sys_mount+0x10/0x10 [ 189.048020][ T7354] ? do_syscall_64+0xbe/0xfa0 [ 189.048036][ T7354] ? __x64_sys_mount+0x20/0xc0 [ 189.048056][ T7354] do_syscall_64+0xfa/0xfa0 [ 189.048071][ T7354] ? lockdep_hardirqs_on+0x9c/0x150 [ 189.048088][ T7354] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 189.048104][ T7354] ? clear_bhb_loop+0x60/0xb0 [ 189.048124][ T7354] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 189.048139][ T7354] RIP: 0033:0x7f7d585772da [ 189.048156][ T7354] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 189.048169][ T7354] RSP: 002b:00007f7d5934ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 189.048187][ T7354] RAX: ffffffffffffffda RBX: 00007f7d5934af00 RCX: 00007f7d585772da [ 189.048199][ T7354] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f7d5934aec0 [ 189.048211][ T7354] RBP: 00000000200124c0 R08: 00007f7d5934af00 R09: 0000000000000000 [ 189.048222][ T7354] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 189.048232][ T7354] R13: 00007f7d5934aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 189.048272][ T7354] [ 189.048296][ T7354] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 189.064136][ T7351] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 189.100676][ T7349] syz.2.104 (7349): drop_caches: 2 [ 189.103115][ T7354] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 189.125173][ T7349] syz.2.104 (7349): drop_caches: 2 [ 189.213684][ T7356] loop1: detected capacity change from 0 to 32768 [ 189.439952][ T7356] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 189.463789][ T7356] CPU: 0 UID: 0 PID: 7356 Comm: syz.1.103 Not tainted syzkaller #0 PREEMPT(full) [ 189.463814][ T7356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 189.463826][ T7356] Call Trace: [ 189.463833][ T7356] [ 189.463841][ T7356] dump_stack_lvl+0x189/0x250 [ 189.463868][ T7356] ? __pfx_dump_stack_lvl+0x10/0x10 [ 189.463888][ T7356] ? __pfx__printk+0x10/0x10 [ 189.463915][ T7356] ? kernfs_path_from_node+0x250/0x290 [ 189.463929][ T7356] ? kernfs_path_from_node+0x2f/0x290 [ 189.463949][ T7356] sysfs_create_dir_ns+0x259/0x280 [ 189.463975][ T7356] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 189.463999][ T7356] ? do_raw_spin_unlock+0x122/0x240 [ 189.464023][ T7356] kobject_add_internal+0x59f/0xb40 [ 189.464051][ T7356] kobject_init_and_add+0x125/0x190 [ 189.464076][ T7356] ? __pfx_kobject_init_and_add+0x10/0x10 [ 189.464097][ T7356] ? __raw_spin_lock_init+0x45/0x100 [ 189.464117][ T7356] ? __init_swait_queue_head+0xa9/0x150 [ 189.464139][ T7356] gfs2_sys_fs_add+0x234/0x450 [ 189.464162][ T7356] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 189.464196][ T7356] ? is_dynamic_key+0xd6/0x1c0 [ 189.464217][ T7356] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 189.464250][ T7356] gfs2_fill_super+0x13c0/0x20d0 [ 189.464290][ T7356] ? __pfx_gfs2_fill_super+0x10/0x10 [ 189.464317][ T7356] ? sb_set_blocksize+0x104/0x180 [ 189.464339][ T7356] ? setup_bdev_super+0x4c1/0x5b0 [ 189.464361][ T7356] get_tree_bdev_flags+0x40e/0x4d0 [ 189.464379][ T7356] ? __pfx_gfs2_fill_super+0x10/0x10 [ 189.464402][ T7356] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 189.464418][ T7356] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 189.464448][ T7356] gfs2_get_tree+0x51/0x1e0 [ 189.464473][ T7356] vfs_get_tree+0x92/0x2b0 [ 189.464495][ T7356] do_new_mount+0x302/0x9e0 [ 189.464512][ T7356] ? apparmor_capable+0x137/0x1b0 [ 189.464539][ T7356] ? __pfx_do_new_mount+0x10/0x10 [ 189.464558][ T7356] ? ns_capable+0x8a/0xf0 [ 189.464583][ T7356] ? kmem_cache_free+0x19b/0x690 [ 189.464612][ T7356] __se_sys_mount+0x313/0x410 [ 189.464637][ T7356] ? __pfx___se_sys_mount+0x10/0x10 [ 189.464660][ T7356] ? do_syscall_64+0xbe/0xfa0 [ 189.464676][ T7356] ? __x64_sys_mount+0x20/0xc0 [ 189.464698][ T7356] do_syscall_64+0xfa/0xfa0 [ 189.464714][ T7356] ? lockdep_hardirqs_on+0x9c/0x150 [ 189.464732][ T7356] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 189.464748][ T7356] ? clear_bhb_loop+0x60/0xb0 [ 189.464768][ T7356] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 189.464784][ T7356] RIP: 0033:0x7f2579d772da [ 189.464800][ T7356] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 189.464814][ T7356] RSP: 002b:00007f257aa9be78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 189.464833][ T7356] RAX: ffffffffffffffda RBX: 00007f257aa9bf00 RCX: 00007f2579d772da [ 189.464846][ T7356] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f257aa9bec0 [ 189.464858][ T7356] RBP: 00000000200124c0 R08: 00007f257aa9bf00 R09: 0000000000000000 [ 189.464869][ T7356] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 189.464879][ T7356] R13: 00007f257aa9bec0 R14: 00000000000125b0 R15: 0000000020000480 [ 189.464907][ T7356] [ 189.464933][ T7356] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 189.577279][ T7358] loop3: detected capacity change from 0 to 32768 [ 189.638567][ T7356] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 189.715838][ T7354] syz.0.106 (7354): drop_caches: 2 [ 189.754241][ T7351] gfs2: fsid=syz:syz.0: found 1 quota changes [ 189.842546][ T7354] syz.0.106 (7354): drop_caches: 2 [ 189.899534][ T7358] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 189.930364][ T7351] syz.4.105 (7351): drop_caches: 2 [ 189.937915][ T7351] syz.4.105 (7351): drop_caches: 2 [ 189.953946][ T7358] CPU: 1 UID: 0 PID: 7358 Comm: syz.3.107 Not tainted syzkaller #0 PREEMPT(full) [ 189.953971][ T7358] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 189.953982][ T7358] Call Trace: [ 189.953990][ T7358] [ 189.953998][ T7358] dump_stack_lvl+0x189/0x250 [ 189.954026][ T7358] ? __pfx_dump_stack_lvl+0x10/0x10 [ 189.954054][ T7358] ? __pfx__printk+0x10/0x10 [ 189.954081][ T7358] ? kernfs_path_from_node+0x250/0x290 [ 189.954098][ T7358] ? kernfs_path_from_node+0x2f/0x290 [ 189.954116][ T7358] sysfs_create_dir_ns+0x259/0x280 [ 189.954148][ T7358] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 189.954172][ T7358] ? do_raw_spin_unlock+0x122/0x240 [ 189.954193][ T7358] kobject_add_internal+0x59f/0xb40 [ 189.954223][ T7358] kobject_init_and_add+0x125/0x190 [ 189.954249][ T7358] ? __pfx_kobject_init_and_add+0x10/0x10 [ 189.954270][ T7358] ? __raw_spin_lock_init+0x45/0x100 [ 189.954290][ T7358] ? __init_swait_queue_head+0xa9/0x150 [ 189.954314][ T7358] gfs2_sys_fs_add+0x234/0x450 [ 189.954336][ T7358] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 189.954361][ T7358] ? is_dynamic_key+0xd6/0x1c0 [ 189.954381][ T7358] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 189.954415][ T7358] gfs2_fill_super+0x13c0/0x20d0 [ 189.954461][ T7358] ? __pfx_gfs2_fill_super+0x10/0x10 [ 189.954488][ T7358] ? sb_set_blocksize+0x104/0x180 [ 189.954511][ T7358] ? setup_bdev_super+0x4c1/0x5b0 [ 189.954533][ T7358] get_tree_bdev_flags+0x40e/0x4d0 [ 189.954551][ T7358] ? __pfx_gfs2_fill_super+0x10/0x10 [ 189.954574][ T7358] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 189.954590][ T7358] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 189.954622][ T7358] gfs2_get_tree+0x51/0x1e0 [ 189.954647][ T7358] vfs_get_tree+0x92/0x2b0 [ 189.954668][ T7358] do_new_mount+0x302/0x9e0 [ 189.954686][ T7358] ? apparmor_capable+0x137/0x1b0 [ 189.954718][ T7358] ? __pfx_do_new_mount+0x10/0x10 [ 189.954737][ T7358] ? ns_capable+0x8a/0xf0 [ 189.954762][ T7358] ? kmem_cache_free+0x19b/0x690 [ 189.954791][ T7358] __se_sys_mount+0x313/0x410 [ 189.954817][ T7358] ? __pfx___se_sys_mount+0x10/0x10 [ 189.954840][ T7358] ? do_syscall_64+0xbe/0xfa0 [ 189.954856][ T7358] ? __x64_sys_mount+0x20/0xc0 [ 189.954877][ T7358] do_syscall_64+0xfa/0xfa0 [ 189.954900][ T7358] ? lockdep_hardirqs_on+0x9c/0x150 [ 189.954917][ T7358] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 189.954933][ T7358] ? clear_bhb_loop+0x60/0xb0 [ 189.954959][ T7358] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 189.954975][ T7358] RIP: 0033:0x7fbbdd5772da [ 189.954991][ T7358] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 189.955006][ T7358] RSP: 002b:00007fbbde38ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 189.955024][ T7358] RAX: ffffffffffffffda RBX: 00007fbbde38af00 RCX: 00007fbbdd5772da [ 189.955037][ T7358] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fbbde38aec0 [ 189.955053][ T7358] RBP: 00000000200124c0 R08: 00007fbbde38af00 R09: 0000000000000000 [ 189.955065][ T7358] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 189.955076][ T7358] R13: 00007fbbde38aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 189.955105][ T7358] [ 189.955132][ T7358] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 190.312073][ T7358] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 190.399703][ T7356] syz.1.103 (7356): drop_caches: 2 [ 190.423917][ T7356] syz.1.103 (7356): drop_caches: 2 [ 190.768724][ T7358] syz.3.107 (7358): drop_caches: 2 [ 190.791838][ T7358] syz.3.107 (7358): drop_caches: 2 [ 191.175136][ T7374] loop2: detected capacity change from 0 to 32768 [ 191.244376][ T7374] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 191.269183][ T7374] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 191.303435][ T7374] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 191.334340][ T6579] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 191.341225][ T6579] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 191.501375][ T7378] loop1: detected capacity change from 0 to 32768 [ 191.559014][ T7378] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 191.566634][ T7378] CPU: 0 UID: 0 PID: 7378 Comm: syz.1.111 Not tainted syzkaller #0 PREEMPT(full) [ 191.566657][ T7378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 191.566668][ T7378] Call Trace: [ 191.566676][ T7378] [ 191.566684][ T7378] dump_stack_lvl+0x189/0x250 [ 191.566712][ T7378] ? __pfx_dump_stack_lvl+0x10/0x10 [ 191.566731][ T7378] ? __pfx__printk+0x10/0x10 [ 191.566758][ T7378] ? kernfs_path_from_node+0x250/0x290 [ 191.566772][ T7378] ? kernfs_path_from_node+0x2f/0x290 [ 191.566793][ T7378] sysfs_create_dir_ns+0x259/0x280 [ 191.566819][ T7378] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 191.566843][ T7378] ? do_raw_spin_unlock+0x122/0x240 [ 191.566867][ T7378] kobject_add_internal+0x59f/0xb40 [ 191.566895][ T7378] kobject_init_and_add+0x125/0x190 [ 191.566921][ T7378] ? __pfx_kobject_init_and_add+0x10/0x10 [ 191.566941][ T7378] ? __raw_spin_lock_init+0x45/0x100 [ 191.566962][ T7378] ? __init_swait_queue_head+0xa9/0x150 [ 191.566985][ T7378] gfs2_sys_fs_add+0x234/0x450 [ 191.567008][ T7378] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 191.567035][ T7378] ? is_dynamic_key+0xd6/0x1c0 [ 191.567062][ T7378] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 191.567096][ T7378] gfs2_fill_super+0x13c0/0x20d0 [ 191.567136][ T7378] ? __pfx_gfs2_fill_super+0x10/0x10 [ 191.567163][ T7378] ? sb_set_blocksize+0x104/0x180 [ 191.567184][ T7378] ? setup_bdev_super+0x4c1/0x5b0 [ 191.567207][ T7378] get_tree_bdev_flags+0x40e/0x4d0 [ 191.567225][ T7378] ? __pfx_gfs2_fill_super+0x10/0x10 [ 191.567247][ T7378] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 191.567263][ T7378] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 191.567295][ T7378] gfs2_get_tree+0x51/0x1e0 [ 191.567321][ T7378] vfs_get_tree+0x92/0x2b0 [ 191.567342][ T7378] do_new_mount+0x302/0x9e0 [ 191.567360][ T7378] ? apparmor_capable+0x137/0x1b0 [ 191.567388][ T7378] ? __pfx_do_new_mount+0x10/0x10 [ 191.567407][ T7378] ? ns_capable+0x8a/0xf0 [ 191.567433][ T7378] ? kmem_cache_free+0x19b/0x690 [ 191.567463][ T7378] __se_sys_mount+0x313/0x410 [ 191.567489][ T7378] ? __pfx___se_sys_mount+0x10/0x10 [ 191.567513][ T7378] ? do_syscall_64+0xbe/0xfa0 [ 191.567529][ T7378] ? __x64_sys_mount+0x20/0xc0 [ 191.567551][ T7378] do_syscall_64+0xfa/0xfa0 [ 191.567567][ T7378] ? lockdep_hardirqs_on+0x9c/0x150 [ 191.567585][ T7378] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.567602][ T7378] ? clear_bhb_loop+0x60/0xb0 [ 191.567623][ T7378] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.567639][ T7378] RIP: 0033:0x7f2579d772da [ 191.567655][ T7378] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 191.567670][ T7378] RSP: 002b:00007f257aa9be78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 191.567689][ T7378] RAX: ffffffffffffffda RBX: 00007f257aa9bf00 RCX: 00007f2579d772da [ 191.567701][ T7378] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f257aa9bec0 [ 191.567713][ T7378] RBP: 00000000200124c0 R08: 00007f257aa9bf00 R09: 0000000000000000 [ 191.567724][ T7378] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 191.567735][ T7378] R13: 00007f257aa9bec0 R14: 00000000000125b0 R15: 0000000020000480 [ 191.567765][ T7378] [ 191.567793][ T7378] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 191.757173][ T7376] loop0: detected capacity change from 0 to 32768 [ 191.825922][ T6579] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 484ms [ 191.845464][ T7378] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 191.936893][ T7376] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 191.947261][ T7376] CPU: 1 UID: 0 PID: 7376 Comm: syz.0.109 Not tainted syzkaller #0 PREEMPT(full) [ 191.947283][ T7376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 191.947294][ T7376] Call Trace: [ 191.947301][ T7376] [ 191.947308][ T7376] dump_stack_lvl+0x189/0x250 [ 191.947335][ T7376] ? __pfx_dump_stack_lvl+0x10/0x10 [ 191.947362][ T7376] ? __pfx__printk+0x10/0x10 [ 191.947388][ T7376] ? kernfs_path_from_node+0x250/0x290 [ 191.947402][ T7376] ? kernfs_path_from_node+0x2f/0x290 [ 191.947422][ T7376] sysfs_create_dir_ns+0x259/0x280 [ 191.947446][ T7376] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 191.947470][ T7376] ? do_raw_spin_unlock+0x122/0x240 [ 191.947493][ T7376] kobject_add_internal+0x59f/0xb40 [ 191.947521][ T7376] kobject_init_and_add+0x125/0x190 [ 191.947547][ T7376] ? __pfx_kobject_init_and_add+0x10/0x10 [ 191.947567][ T7376] ? __raw_spin_lock_init+0x45/0x100 [ 191.947588][ T7376] ? __init_swait_queue_head+0xa9/0x150 [ 191.947609][ T7376] gfs2_sys_fs_add+0x234/0x450 [ 191.947641][ T7376] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 191.947667][ T7376] ? is_dynamic_key+0xd6/0x1c0 [ 191.947687][ T7376] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 191.947721][ T7376] gfs2_fill_super+0x13c0/0x20d0 [ 191.947759][ T7376] ? __pfx_gfs2_fill_super+0x10/0x10 [ 191.947786][ T7376] ? sb_set_blocksize+0x104/0x180 [ 191.947808][ T7376] ? setup_bdev_super+0x4c1/0x5b0 [ 191.947829][ T7376] get_tree_bdev_flags+0x40e/0x4d0 [ 191.947847][ T7376] ? __pfx_gfs2_fill_super+0x10/0x10 [ 191.947868][ T7376] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 191.947884][ T7376] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 191.947916][ T7376] gfs2_get_tree+0x51/0x1e0 [ 191.947943][ T7376] vfs_get_tree+0x92/0x2b0 [ 191.947963][ T7376] do_new_mount+0x302/0x9e0 [ 191.947981][ T7376] ? apparmor_capable+0x137/0x1b0 [ 191.948007][ T7376] ? __pfx_do_new_mount+0x10/0x10 [ 191.948026][ T7376] ? ns_capable+0x8a/0xf0 [ 191.948051][ T7376] ? kmem_cache_free+0x19b/0x690 [ 191.948080][ T7376] __se_sys_mount+0x313/0x410 [ 191.948104][ T7376] ? __pfx___se_sys_mount+0x10/0x10 [ 191.948127][ T7376] ? do_syscall_64+0xbe/0xfa0 [ 191.948143][ T7376] ? __x64_sys_mount+0x20/0xc0 [ 191.948164][ T7376] do_syscall_64+0xfa/0xfa0 [ 191.948181][ T7376] ? lockdep_hardirqs_on+0x9c/0x150 [ 191.948198][ T7376] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.948215][ T7376] ? clear_bhb_loop+0x60/0xb0 [ 191.948235][ T7376] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.948251][ T7376] RIP: 0033:0x7f7d585772da [ 191.948267][ T7376] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 191.948281][ T7376] RSP: 002b:00007f7d5934ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 191.948300][ T7376] RAX: ffffffffffffffda RBX: 00007f7d5934af00 RCX: 00007f7d585772da [ 191.948312][ T7376] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f7d5934aec0 [ 191.948325][ T7376] RBP: 00000000200124c0 R08: 00007f7d5934af00 R09: 0000000000000000 [ 191.948336][ T7376] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 191.948352][ T7376] R13: 00007f7d5934aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 191.948382][ T7376] [ 191.948406][ T7376] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 192.029377][ T6579] gfs2: fsid=syz:syz.0: jid=0: Done [ 192.030499][ T7376] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 192.089208][ T7374] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 192.170416][ T7378] syz.1.111 (7378): drop_caches: 2 [ 192.242330][ T7376] syz.0.109 (7376): drop_caches: 2 [ 192.351445][ T7376] syz.0.109 (7376): drop_caches: 2 [ 192.371593][ T7382] loop3: detected capacity change from 0 to 32768 [ 192.426120][ T7382] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 192.451333][ T7382] CPU: 1 UID: 0 PID: 7382 Comm: syz.3.112 Not tainted syzkaller #0 PREEMPT(full) [ 192.451359][ T7382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 192.451369][ T7382] Call Trace: [ 192.451376][ T7382] [ 192.451384][ T7382] dump_stack_lvl+0x189/0x250 [ 192.451412][ T7382] ? __pfx_dump_stack_lvl+0x10/0x10 [ 192.451432][ T7382] ? __pfx__printk+0x10/0x10 [ 192.451458][ T7382] ? kernfs_path_from_node+0x250/0x290 [ 192.451473][ T7382] ? kernfs_path_from_node+0x2f/0x290 [ 192.451492][ T7382] sysfs_create_dir_ns+0x259/0x280 [ 192.451517][ T7382] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 192.451542][ T7382] ? do_raw_spin_unlock+0x122/0x240 [ 192.451566][ T7382] kobject_add_internal+0x59f/0xb40 [ 192.451594][ T7382] kobject_init_and_add+0x125/0x190 [ 192.451620][ T7382] ? __pfx_kobject_init_and_add+0x10/0x10 [ 192.451641][ T7382] ? __raw_spin_lock_init+0x45/0x100 [ 192.451661][ T7382] ? __init_swait_queue_head+0xa9/0x150 [ 192.451684][ T7382] gfs2_sys_fs_add+0x234/0x450 [ 192.451706][ T7382] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 192.451732][ T7382] ? is_dynamic_key+0xd6/0x1c0 [ 192.451752][ T7382] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 192.451786][ T7382] gfs2_fill_super+0x13c0/0x20d0 [ 192.451824][ T7382] ? __pfx_gfs2_fill_super+0x10/0x10 [ 192.451851][ T7382] ? sb_set_blocksize+0x104/0x180 [ 192.451873][ T7382] ? setup_bdev_super+0x4c1/0x5b0 [ 192.451894][ T7382] get_tree_bdev_flags+0x40e/0x4d0 [ 192.451912][ T7382] ? __pfx_gfs2_fill_super+0x10/0x10 [ 192.451934][ T7382] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 192.451949][ T7382] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 192.451980][ T7382] gfs2_get_tree+0x51/0x1e0 [ 192.452004][ T7382] vfs_get_tree+0x92/0x2b0 [ 192.452025][ T7382] do_new_mount+0x302/0x9e0 [ 192.452043][ T7382] ? apparmor_capable+0x137/0x1b0 [ 192.452078][ T7382] ? __pfx_do_new_mount+0x10/0x10 [ 192.452097][ T7382] ? ns_capable+0x8a/0xf0 [ 192.452120][ T7382] ? kmem_cache_free+0x19b/0x690 [ 192.452145][ T7382] __se_sys_mount+0x313/0x410 [ 192.452168][ T7382] ? __pfx___se_sys_mount+0x10/0x10 [ 192.452188][ T7382] ? do_syscall_64+0xbe/0xfa0 [ 192.452203][ T7382] ? __x64_sys_mount+0x20/0xc0 [ 192.452222][ T7382] do_syscall_64+0xfa/0xfa0 [ 192.452236][ T7382] ? lockdep_hardirqs_on+0x9c/0x150 [ 192.452252][ T7382] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 192.452267][ T7382] ? clear_bhb_loop+0x60/0xb0 [ 192.452285][ T7382] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 192.452300][ T7382] RIP: 0033:0x7fbbdd5772da [ 192.452317][ T7382] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 192.452330][ T7382] RSP: 002b:00007fbbde38ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 192.452349][ T7382] RAX: ffffffffffffffda RBX: 00007fbbde38af00 RCX: 00007fbbdd5772da [ 192.452362][ T7382] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fbbde38aec0 [ 192.452373][ T7382] RBP: 00000000200124c0 R08: 00007fbbde38af00 R09: 0000000000000000 [ 192.452382][ T7382] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 192.452393][ T7382] R13: 00007fbbde38aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 192.452421][ T7382] [ 192.452447][ T7382] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 192.541550][ T7374] gfs2: fsid=syz:syz.0: found 1 quota changes [ 192.545214][ T7382] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 192.833135][ T7374] syz.2.108 (7374): drop_caches: 2 [ 192.906549][ T7374] syz.2.108 (7374): drop_caches: 2 [ 192.943532][ T7380] loop4: detected capacity change from 0 to 32768 [ 193.021803][ T7380] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 193.049132][ T7380] CPU: 0 UID: 0 PID: 7380 Comm: syz.4.110 Not tainted syzkaller #0 PREEMPT(full) [ 193.049159][ T7380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 193.049169][ T7380] Call Trace: [ 193.049176][ T7380] [ 193.049184][ T7380] dump_stack_lvl+0x189/0x250 [ 193.049211][ T7380] ? __pfx_dump_stack_lvl+0x10/0x10 [ 193.049230][ T7380] ? __pfx__printk+0x10/0x10 [ 193.049256][ T7380] ? kernfs_path_from_node+0x250/0x290 [ 193.049271][ T7380] ? kernfs_path_from_node+0x2f/0x290 [ 193.049291][ T7380] sysfs_create_dir_ns+0x259/0x280 [ 193.049317][ T7380] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 193.049341][ T7380] ? do_raw_spin_unlock+0x122/0x240 [ 193.049366][ T7380] kobject_add_internal+0x59f/0xb40 [ 193.049393][ T7380] kobject_init_and_add+0x125/0x190 [ 193.049420][ T7380] ? __pfx_kobject_init_and_add+0x10/0x10 [ 193.049440][ T7380] ? __raw_spin_lock_init+0x45/0x100 [ 193.049461][ T7380] ? __init_swait_queue_head+0xa9/0x150 [ 193.049483][ T7380] gfs2_sys_fs_add+0x234/0x450 [ 193.049507][ T7380] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 193.049533][ T7380] ? is_dynamic_key+0xd6/0x1c0 [ 193.049554][ T7380] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 193.049587][ T7380] gfs2_fill_super+0x13c0/0x20d0 [ 193.049627][ T7380] ? __pfx_gfs2_fill_super+0x10/0x10 [ 193.049654][ T7380] ? sb_set_blocksize+0x104/0x180 [ 193.049676][ T7380] ? setup_bdev_super+0x4c1/0x5b0 [ 193.049699][ T7380] get_tree_bdev_flags+0x40e/0x4d0 [ 193.049717][ T7380] ? __pfx_gfs2_fill_super+0x10/0x10 [ 193.049740][ T7380] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 193.049756][ T7380] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 193.049787][ T7380] gfs2_get_tree+0x51/0x1e0 [ 193.049813][ T7380] vfs_get_tree+0x92/0x2b0 [ 193.049833][ T7380] do_new_mount+0x302/0x9e0 [ 193.049852][ T7380] ? apparmor_capable+0x137/0x1b0 [ 193.049879][ T7380] ? __pfx_do_new_mount+0x10/0x10 [ 193.049899][ T7380] ? ns_capable+0x8a/0xf0 [ 193.049982][ T7380] ? kmem_cache_free+0x19b/0x690 [ 193.050102][ T7380] __se_sys_mount+0x313/0x410 [ 193.050131][ T7380] ? __pfx___se_sys_mount+0x10/0x10 [ 193.050153][ T7380] ? do_syscall_64+0xbe/0xfa0 [ 193.050168][ T7380] ? __x64_sys_mount+0x20/0xc0 [ 193.050195][ T7380] do_syscall_64+0xfa/0xfa0 [ 193.050211][ T7380] ? lockdep_hardirqs_on+0x9c/0x150 [ 193.050229][ T7380] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 193.050245][ T7380] ? clear_bhb_loop+0x60/0xb0 [ 193.050266][ T7380] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 193.050284][ T7380] RIP: 0033:0x7f49a9b772da [ 193.050299][ T7380] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 193.050311][ T7380] RSP: 002b:00007f49aa984e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 193.050331][ T7380] RAX: ffffffffffffffda RBX: 00007f49aa984f00 RCX: 00007f49a9b772da [ 193.050343][ T7380] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f49aa984ec0 [ 193.050356][ T7380] RBP: 00000000200124c0 R08: 00007f49aa984f00 R09: 0000000000000000 [ 193.050368][ T7380] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 193.050379][ T7380] R13: 00007f49aa984ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 193.050409][ T7380] [ 193.050442][ T7380] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 193.322506][ T7382] syz.3.112 (7382): drop_caches: 2 [ 193.422440][ T7382] syz.3.112 (7382): drop_caches: 2 2025/09/25 08:30:17 executed programs: 111 [ 193.458583][ T7380] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 194.048648][ T7398] loop0: detected capacity change from 0 to 32768 [ 194.120768][ T7398] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 194.129426][ T7398] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 194.199343][ T7398] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 194.249944][ T10] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 194.256799][ T10] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 194.296325][ T7396] loop1: detected capacity change from 0 to 32768 [ 194.345192][ T7396] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 194.408524][ T7396] CPU: 1 UID: 0 PID: 7396 Comm: syz.1.113 Not tainted syzkaller #0 PREEMPT(full) [ 194.408548][ T7396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 194.408558][ T7396] Call Trace: [ 194.408565][ T7396] [ 194.408574][ T7396] dump_stack_lvl+0x189/0x250 [ 194.408599][ T7396] ? __pfx_dump_stack_lvl+0x10/0x10 [ 194.408615][ T7396] ? __pfx__printk+0x10/0x10 [ 194.408638][ T7396] ? kernfs_path_from_node+0x250/0x290 [ 194.408653][ T7396] ? kernfs_path_from_node+0x2f/0x290 [ 194.408672][ T7396] sysfs_create_dir_ns+0x259/0x280 [ 194.408698][ T7396] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 194.408722][ T7396] ? do_raw_spin_unlock+0x122/0x240 [ 194.408745][ T7396] kobject_add_internal+0x59f/0xb40 [ 194.408774][ T7396] kobject_init_and_add+0x125/0x190 [ 194.408798][ T7396] ? __pfx_kobject_init_and_add+0x10/0x10 [ 194.408819][ T7396] ? __raw_spin_lock_init+0x45/0x100 [ 194.408839][ T7396] ? __init_swait_queue_head+0xa9/0x150 [ 194.408860][ T7396] gfs2_sys_fs_add+0x234/0x450 [ 194.408883][ T7396] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 194.408908][ T7396] ? is_dynamic_key+0xd6/0x1c0 [ 194.408927][ T7396] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 194.408961][ T7396] gfs2_fill_super+0x13c0/0x20d0 [ 194.408999][ T7396] ? __pfx_gfs2_fill_super+0x10/0x10 [ 194.409027][ T7396] ? sb_set_blocksize+0x104/0x180 [ 194.409051][ T7396] ? setup_bdev_super+0x4c1/0x5b0 [ 194.409069][ T7396] get_tree_bdev_flags+0x40e/0x4d0 [ 194.409086][ T7396] ? __pfx_gfs2_fill_super+0x10/0x10 [ 194.409114][ T7396] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 194.409130][ T7396] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 194.409161][ T7396] gfs2_get_tree+0x51/0x1e0 [ 194.409187][ T7396] vfs_get_tree+0x92/0x2b0 [ 194.409207][ T7396] do_new_mount+0x302/0x9e0 [ 194.409225][ T7396] ? apparmor_capable+0x137/0x1b0 [ 194.409250][ T7396] ? __pfx_do_new_mount+0x10/0x10 [ 194.409269][ T7396] ? ns_capable+0x8a/0xf0 [ 194.409294][ T7396] ? kmem_cache_free+0x19b/0x690 [ 194.409324][ T7396] __se_sys_mount+0x313/0x410 [ 194.409349][ T7396] ? __pfx___se_sys_mount+0x10/0x10 [ 194.409373][ T7396] ? do_syscall_64+0xbe/0xfa0 [ 194.409387][ T7396] ? __x64_sys_mount+0x20/0xc0 [ 194.409408][ T7396] do_syscall_64+0xfa/0xfa0 [ 194.409423][ T7396] ? lockdep_hardirqs_on+0x9c/0x150 [ 194.409441][ T7396] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 194.409456][ T7396] ? clear_bhb_loop+0x60/0xb0 [ 194.409476][ T7396] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 194.409492][ T7396] RIP: 0033:0x7f2579d772da [ 194.409509][ T7396] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 194.409524][ T7396] RSP: 002b:00007f257aa9be78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 194.409543][ T7396] RAX: ffffffffffffffda RBX: 00007f257aa9bf00 RCX: 00007f2579d772da [ 194.409556][ T7396] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f257aa9bec0 [ 194.409567][ T7396] RBP: 00000000200124c0 R08: 00007f257aa9bf00 R09: 0000000000000000 [ 194.409578][ T7396] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 194.409589][ T7396] R13: 00007f257aa9bec0 R14: 00000000000125b0 R15: 0000000020000480 [ 194.409618][ T7396] [ 194.475970][ T1300] ieee802154 phy0 wpan0: encryption failed: -22 [ 194.492801][ T7396] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 194.507240][ T1300] ieee802154 phy1 wpan1: encryption failed: -22 [ 194.513398][ T7396] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 194.657248][ T10] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 400ms [ 194.808478][ T7396] syz.1.113 (7396): drop_caches: 2 [ 194.835329][ T7396] syz.1.113 (7396): drop_caches: 2 [ 194.966684][ T7403] loop3: detected capacity change from 0 to 32768 [ 194.999368][ T10] gfs2: fsid=syz:syz.0: jid=0: Done [ 195.016719][ T7398] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 195.034591][ T7403] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 195.119612][ T7403] CPU: 1 UID: 0 PID: 7403 Comm: syz.3.116 Not tainted syzkaller #0 PREEMPT(full) [ 195.119638][ T7403] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 195.119649][ T7403] Call Trace: [ 195.119656][ T7403] [ 195.119665][ T7403] dump_stack_lvl+0x189/0x250 [ 195.119692][ T7403] ? __pfx_dump_stack_lvl+0x10/0x10 [ 195.119710][ T7403] ? __pfx__printk+0x10/0x10 [ 195.119737][ T7403] ? kernfs_path_from_node+0x250/0x290 [ 195.119752][ T7403] ? kernfs_path_from_node+0x2f/0x290 [ 195.119787][ T7403] sysfs_create_dir_ns+0x259/0x280 [ 195.119812][ T7403] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 195.119837][ T7403] ? do_raw_spin_unlock+0x122/0x240 [ 195.119867][ T7403] kobject_add_internal+0x59f/0xb40 [ 195.119893][ T7403] kobject_init_and_add+0x125/0x190 [ 195.119918][ T7403] ? __pfx_kobject_init_and_add+0x10/0x10 [ 195.119939][ T7403] ? __raw_spin_lock_init+0x45/0x100 [ 195.119960][ T7403] ? __init_swait_queue_head+0xa9/0x150 [ 195.119982][ T7403] gfs2_sys_fs_add+0x234/0x450 [ 195.120005][ T7403] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 195.120030][ T7403] ? is_dynamic_key+0xd6/0x1c0 [ 195.120050][ T7403] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 195.120083][ T7403] gfs2_fill_super+0x13c0/0x20d0 [ 195.120122][ T7403] ? __pfx_gfs2_fill_super+0x10/0x10 [ 195.120149][ T7403] ? sb_set_blocksize+0x104/0x180 [ 195.120171][ T7403] ? setup_bdev_super+0x4c1/0x5b0 [ 195.120193][ T7403] get_tree_bdev_flags+0x40e/0x4d0 [ 195.120212][ T7403] ? __pfx_gfs2_fill_super+0x10/0x10 [ 195.120234][ T7403] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 195.120250][ T7403] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 195.120282][ T7403] gfs2_get_tree+0x51/0x1e0 [ 195.120308][ T7403] vfs_get_tree+0x92/0x2b0 [ 195.120329][ T7403] do_new_mount+0x302/0x9e0 [ 195.120347][ T7403] ? apparmor_capable+0x137/0x1b0 [ 195.120373][ T7403] ? __pfx_do_new_mount+0x10/0x10 [ 195.120391][ T7403] ? ns_capable+0x8a/0xf0 [ 195.120413][ T7403] ? kmem_cache_free+0x19b/0x690 [ 195.120441][ T7403] __se_sys_mount+0x313/0x410 [ 195.120465][ T7403] ? __pfx___se_sys_mount+0x10/0x10 [ 195.120488][ T7403] ? do_syscall_64+0xbe/0xfa0 [ 195.120504][ T7403] ? __x64_sys_mount+0x20/0xc0 [ 195.120526][ T7403] do_syscall_64+0xfa/0xfa0 [ 195.120542][ T7403] ? lockdep_hardirqs_on+0x9c/0x150 [ 195.120559][ T7403] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 195.120575][ T7403] ? clear_bhb_loop+0x60/0xb0 [ 195.120595][ T7403] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 195.120611][ T7403] RIP: 0033:0x7fbbdd5772da [ 195.120627][ T7403] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 195.120642][ T7403] RSP: 002b:00007fbbde38ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 195.120662][ T7403] RAX: ffffffffffffffda RBX: 00007fbbde38af00 RCX: 00007fbbdd5772da [ 195.120675][ T7403] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fbbde38aec0 [ 195.120688][ T7403] RBP: 00000000200124c0 R08: 00007fbbde38af00 R09: 0000000000000000 [ 195.120698][ T7403] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 195.120708][ T7403] R13: 00007fbbde38aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 195.120738][ T7403] [ 195.120763][ T7403] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 195.240056][ T7398] gfs2: fsid=syz:syz.0: found 1 quota changes [ 195.269158][ T7403] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 195.483581][ T7398] syz.0.114 (7398): drop_caches: 2 [ 195.492074][ T7407] loop4: detected capacity change from 0 to 32768 [ 195.497629][ T7405] loop2: detected capacity change from 0 to 32768 [ 195.509745][ T7398] syz.0.114 (7398): drop_caches: 2 [ 195.525481][ T7405] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 195.577014][ T7405] CPU: 0 UID: 0 PID: 7405 Comm: syz.2.115 Not tainted syzkaller #0 PREEMPT(full) [ 195.577038][ T7405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 195.577049][ T7405] Call Trace: [ 195.577055][ T7405] [ 195.577063][ T7405] dump_stack_lvl+0x189/0x250 [ 195.577090][ T7405] ? __pfx_dump_stack_lvl+0x10/0x10 [ 195.577109][ T7405] ? __pfx__printk+0x10/0x10 [ 195.577133][ T7405] ? kernfs_path_from_node+0x250/0x290 [ 195.577146][ T7405] ? kernfs_path_from_node+0x2f/0x290 [ 195.577162][ T7405] sysfs_create_dir_ns+0x259/0x280 [ 195.577185][ T7405] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 195.577208][ T7405] ? do_raw_spin_unlock+0x122/0x240 [ 195.577227][ T7405] kobject_add_internal+0x59f/0xb40 [ 195.577252][ T7405] kobject_init_and_add+0x125/0x190 [ 195.577273][ T7405] ? __pfx_kobject_init_and_add+0x10/0x10 [ 195.577293][ T7405] ? __raw_spin_lock_init+0x45/0x100 [ 195.577312][ T7405] ? __init_swait_queue_head+0xa9/0x150 [ 195.577335][ T7405] gfs2_sys_fs_add+0x234/0x450 [ 195.577357][ T7405] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 195.577382][ T7405] ? is_dynamic_key+0xd6/0x1c0 [ 195.577402][ T7405] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 195.577432][ T7405] gfs2_fill_super+0x13c0/0x20d0 [ 195.577468][ T7405] ? __pfx_gfs2_fill_super+0x10/0x10 [ 195.577492][ T7405] ? sb_set_blocksize+0x104/0x180 [ 195.577512][ T7405] ? setup_bdev_super+0x4c1/0x5b0 [ 195.577533][ T7405] get_tree_bdev_flags+0x40e/0x4d0 [ 195.577551][ T7405] ? __pfx_gfs2_fill_super+0x10/0x10 [ 195.577573][ T7405] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 195.577588][ T7405] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 195.577620][ T7405] gfs2_get_tree+0x51/0x1e0 [ 195.577645][ T7405] vfs_get_tree+0x92/0x2b0 [ 195.577665][ T7405] do_new_mount+0x302/0x9e0 [ 195.577682][ T7405] ? apparmor_capable+0x137/0x1b0 [ 195.577708][ T7405] ? __pfx_do_new_mount+0x10/0x10 [ 195.577725][ T7405] ? ns_capable+0x8a/0xf0 [ 195.577750][ T7405] ? kmem_cache_free+0x19b/0x690 [ 195.577778][ T7405] __se_sys_mount+0x313/0x410 [ 195.577803][ T7405] ? __pfx___se_sys_mount+0x10/0x10 [ 195.577834][ T7405] ? do_syscall_64+0xbe/0xfa0 [ 195.577850][ T7405] ? __x64_sys_mount+0x20/0xc0 [ 195.577871][ T7405] do_syscall_64+0xfa/0xfa0 [ 195.577884][ T7405] ? lockdep_hardirqs_on+0x9c/0x150 [ 195.577901][ T7405] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 195.577916][ T7405] ? clear_bhb_loop+0x60/0xb0 [ 195.577936][ T7405] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 195.577951][ T7405] RIP: 0033:0x7fe8263772da [ 195.577967][ T7405] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 195.577982][ T7405] RSP: 002b:00007fe8271a2e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 195.578001][ T7405] RAX: ffffffffffffffda RBX: 00007fe8271a2f00 RCX: 00007fe8263772da [ 195.578013][ T7405] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fe8271a2ec0 [ 195.578023][ T7405] RBP: 00000000200124c0 R08: 00007fe8271a2f00 R09: 0000000000000000 [ 195.578034][ T7405] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 195.578044][ T7405] R13: 00007fe8271a2ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 195.578072][ T7405] [ 195.578096][ T7405] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 195.800776][ T7407] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 195.817073][ T7405] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 195.960683][ T7407] CPU: 0 UID: 0 PID: 7407 Comm: syz.4.117 Not tainted syzkaller #0 PREEMPT(full) [ 195.960709][ T7407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 195.960720][ T7407] Call Trace: [ 195.960727][ T7407] [ 195.960735][ T7407] dump_stack_lvl+0x189/0x250 [ 195.960762][ T7407] ? __pfx_dump_stack_lvl+0x10/0x10 [ 195.960781][ T7407] ? __pfx__printk+0x10/0x10 [ 195.960807][ T7407] ? kernfs_path_from_node+0x250/0x290 [ 195.960822][ T7407] ? kernfs_path_from_node+0x2f/0x290 [ 195.960842][ T7407] sysfs_create_dir_ns+0x259/0x280 [ 195.960867][ T7407] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 195.960891][ T7407] ? do_raw_spin_unlock+0x122/0x240 [ 195.960915][ T7407] kobject_add_internal+0x59f/0xb40 [ 195.960952][ T7407] kobject_init_and_add+0x125/0x190 [ 195.960977][ T7407] ? __pfx_kobject_init_and_add+0x10/0x10 [ 195.961003][ T7407] ? __raw_spin_lock_init+0x45/0x100 [ 195.961023][ T7407] ? __init_swait_queue_head+0xa9/0x150 [ 195.961046][ T7407] gfs2_sys_fs_add+0x234/0x450 [ 195.961068][ T7407] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 195.961093][ T7407] ? is_dynamic_key+0xd6/0x1c0 [ 195.961112][ T7407] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 195.961146][ T7407] gfs2_fill_super+0x13c0/0x20d0 [ 195.961184][ T7407] ? __pfx_gfs2_fill_super+0x10/0x10 [ 195.961212][ T7407] ? sb_set_blocksize+0x104/0x180 [ 195.961233][ T7407] ? setup_bdev_super+0x4c1/0x5b0 [ 195.961254][ T7407] get_tree_bdev_flags+0x40e/0x4d0 [ 195.961273][ T7407] ? __pfx_gfs2_fill_super+0x10/0x10 [ 195.961294][ T7407] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 195.961317][ T7407] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 195.961348][ T7407] gfs2_get_tree+0x51/0x1e0 [ 195.961378][ T7407] vfs_get_tree+0x92/0x2b0 [ 195.961398][ T7407] do_new_mount+0x302/0x9e0 [ 195.961416][ T7407] ? apparmor_capable+0x137/0x1b0 [ 195.961442][ T7407] ? __pfx_do_new_mount+0x10/0x10 [ 195.961460][ T7407] ? ns_capable+0x8a/0xf0 [ 195.961485][ T7407] ? kmem_cache_free+0x19b/0x690 [ 195.961514][ T7407] __se_sys_mount+0x313/0x410 [ 195.961544][ T7407] ? __pfx___se_sys_mount+0x10/0x10 [ 195.961567][ T7407] ? do_syscall_64+0xbe/0xfa0 [ 195.961584][ T7407] ? __x64_sys_mount+0x20/0xc0 [ 195.961604][ T7407] do_syscall_64+0xfa/0xfa0 [ 195.961621][ T7407] ? lockdep_hardirqs_on+0x9c/0x150 [ 195.961638][ T7407] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 195.961654][ T7407] ? clear_bhb_loop+0x60/0xb0 [ 195.961675][ T7407] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 195.961690][ T7407] RIP: 0033:0x7f49a9b772da [ 195.961706][ T7407] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 195.961720][ T7407] RSP: 002b:00007f49aa984e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 195.961739][ T7407] RAX: ffffffffffffffda RBX: 00007f49aa984f00 RCX: 00007f49a9b772da [ 195.961751][ T7407] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f49aa984ec0 [ 195.961763][ T7407] RBP: 00000000200124c0 R08: 00007f49aa984f00 R09: 0000000000000000 [ 195.961775][ T7407] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 195.961786][ T7407] R13: 00007f49aa984ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 195.961814][ T7407] [ 195.961840][ T7407] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 196.311520][ T7407] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.331511][ T7407] syz.4.117 (7407): drop_caches: 2 [ 196.339674][ T7407] syz.4.117 (7407): drop_caches: 2 [ 196.353930][ T7414] loop1: detected capacity change from 0 to 32768 [ 196.364840][ T7405] syz.2.115 (7405): drop_caches: 2 [ 196.379741][ T7414] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.387650][ T7414] CPU: 0 UID: 0 PID: 7414 Comm: syz.1.118 Not tainted syzkaller #0 PREEMPT(full) [ 196.387673][ T7414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 196.387684][ T7414] Call Trace: [ 196.387692][ T7414] [ 196.387700][ T7414] dump_stack_lvl+0x189/0x250 [ 196.387728][ T7414] ? __pfx_dump_stack_lvl+0x10/0x10 [ 196.387747][ T7414] ? __pfx__printk+0x10/0x10 [ 196.387781][ T7414] ? kernfs_path_from_node+0x250/0x290 [ 196.387796][ T7414] ? kernfs_path_from_node+0x2f/0x290 [ 196.387815][ T7414] sysfs_create_dir_ns+0x259/0x280 [ 196.387841][ T7414] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 196.387866][ T7414] ? do_raw_spin_unlock+0x122/0x240 [ 196.387890][ T7414] kobject_add_internal+0x59f/0xb40 [ 196.387919][ T7414] kobject_init_and_add+0x125/0x190 [ 196.387944][ T7414] ? __pfx_kobject_init_and_add+0x10/0x10 [ 196.387965][ T7414] ? __raw_spin_lock_init+0x45/0x100 [ 196.387990][ T7414] ? __init_swait_queue_head+0xa9/0x150 [ 196.388012][ T7414] gfs2_sys_fs_add+0x234/0x450 [ 196.388035][ T7414] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 196.388061][ T7414] ? is_dynamic_key+0xd6/0x1c0 [ 196.388081][ T7414] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 196.388114][ T7414] gfs2_fill_super+0x13c0/0x20d0 [ 196.388153][ T7414] ? __pfx_gfs2_fill_super+0x10/0x10 [ 196.388179][ T7414] ? sb_set_blocksize+0x104/0x180 [ 196.388201][ T7414] ? setup_bdev_super+0x4c1/0x5b0 [ 196.388223][ T7414] get_tree_bdev_flags+0x40e/0x4d0 [ 196.388239][ T7414] ? __pfx_gfs2_fill_super+0x10/0x10 [ 196.388259][ T7414] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 196.388273][ T7414] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 196.388301][ T7414] gfs2_get_tree+0x51/0x1e0 [ 196.388323][ T7414] vfs_get_tree+0x92/0x2b0 [ 196.388342][ T7414] do_new_mount+0x302/0x9e0 [ 196.388358][ T7414] ? apparmor_capable+0x137/0x1b0 [ 196.388383][ T7414] ? __pfx_do_new_mount+0x10/0x10 [ 196.388400][ T7414] ? ns_capable+0x8a/0xf0 [ 196.388423][ T7414] ? kmem_cache_free+0x19b/0x690 [ 196.388449][ T7414] __se_sys_mount+0x313/0x410 [ 196.388474][ T7414] ? __pfx___se_sys_mount+0x10/0x10 [ 196.388495][ T7414] ? do_syscall_64+0xbe/0xfa0 [ 196.388511][ T7414] ? __x64_sys_mount+0x20/0xc0 [ 196.388529][ T7414] do_syscall_64+0xfa/0xfa0 [ 196.388545][ T7414] ? lockdep_hardirqs_on+0x9c/0x150 [ 196.388562][ T7414] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 196.388578][ T7414] ? clear_bhb_loop+0x60/0xb0 [ 196.388598][ T7414] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 196.388614][ T7414] RIP: 0033:0x7f2579d772da [ 196.388630][ T7414] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 196.388646][ T7414] RSP: 002b:00007f257aa9be78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 196.388665][ T7414] RAX: ffffffffffffffda RBX: 00007f257aa9bf00 RCX: 00007f2579d772da [ 196.388678][ T7414] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f257aa9bec0 [ 196.388691][ T7414] RBP: 00000000200124c0 R08: 00007f257aa9bf00 R09: 0000000000000000 [ 196.388702][ T7414] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 196.388713][ T7414] R13: 00007f257aa9bec0 R14: 00000000000125b0 R15: 0000000020000480 [ 196.388743][ T7414] [ 196.388869][ T7414] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 196.403956][ T7405] syz.2.115 (7405): drop_caches: 2 [ 196.413131][ T7414] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 197.458286][ T7414] syz.1.118 (7414): drop_caches: 2 [ 197.517160][ T7414] syz.1.118 (7414): drop_caches: 2 [ 197.959237][ T7428] loop4: detected capacity change from 0 to 32768 [ 197.991613][ T7431] loop2: detected capacity change from 0 to 32768 [ 198.018622][ T7431] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.019743][ T7428] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 198.027171][ T7433] loop0: detected capacity change from 0 to 32768 [ 198.041188][ T7428] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 198.041492][ T7431] CPU: 0 UID: 0 PID: 7431 Comm: syz.2.122 Not tainted syzkaller #0 PREEMPT(full) [ 198.041513][ T7431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 198.041524][ T7431] Call Trace: [ 198.041532][ T7431] [ 198.041540][ T7431] dump_stack_lvl+0x189/0x250 [ 198.041566][ T7431] ? __pfx_dump_stack_lvl+0x10/0x10 [ 198.041585][ T7431] ? __pfx__printk+0x10/0x10 [ 198.041611][ T7431] ? kernfs_path_from_node+0x250/0x290 [ 198.041626][ T7431] ? kernfs_path_from_node+0x2f/0x290 [ 198.041661][ T7431] sysfs_create_dir_ns+0x259/0x280 [ 198.041686][ T7431] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 198.041709][ T7431] ? do_raw_spin_unlock+0x122/0x240 [ 198.041732][ T7431] kobject_add_internal+0x59f/0xb40 [ 198.041759][ T7431] kobject_init_and_add+0x125/0x190 [ 198.041783][ T7431] ? __pfx_kobject_init_and_add+0x10/0x10 [ 198.041803][ T7431] ? __raw_spin_lock_init+0x45/0x100 [ 198.041823][ T7431] ? __init_swait_queue_head+0xa9/0x150 [ 198.041844][ T7431] gfs2_sys_fs_add+0x234/0x450 [ 198.041865][ T7431] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 198.041890][ T7431] ? is_dynamic_key+0xd6/0x1c0 [ 198.041910][ T7431] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 198.041942][ T7431] gfs2_fill_super+0x13c0/0x20d0 [ 198.041981][ T7431] ? __pfx_gfs2_fill_super+0x10/0x10 [ 198.042007][ T7431] ? sb_set_blocksize+0x104/0x180 [ 198.042028][ T7431] ? setup_bdev_super+0x4c1/0x5b0 [ 198.042048][ T7431] get_tree_bdev_flags+0x40e/0x4d0 [ 198.042066][ T7431] ? __pfx_gfs2_fill_super+0x10/0x10 [ 198.042087][ T7431] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 198.042103][ T7431] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 198.042133][ T7431] gfs2_get_tree+0x51/0x1e0 [ 198.042157][ T7431] vfs_get_tree+0x92/0x2b0 [ 198.042177][ T7431] do_new_mount+0x302/0x9e0 [ 198.042194][ T7431] ? apparmor_capable+0x137/0x1b0 [ 198.042220][ T7431] ? __pfx_do_new_mount+0x10/0x10 [ 198.042238][ T7431] ? ns_capable+0x8a/0xf0 [ 198.042262][ T7431] ? kmem_cache_free+0x19b/0x690 [ 198.042290][ T7431] __se_sys_mount+0x313/0x410 [ 198.042315][ T7431] ? __pfx___se_sys_mount+0x10/0x10 [ 198.042338][ T7431] ? do_syscall_64+0xbe/0xfa0 [ 198.042353][ T7431] ? __x64_sys_mount+0x20/0xc0 [ 198.042374][ T7431] do_syscall_64+0xfa/0xfa0 [ 198.042389][ T7431] ? lockdep_hardirqs_on+0x9c/0x150 [ 198.042406][ T7431] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 198.042423][ T7431] ? clear_bhb_loop+0x60/0xb0 [ 198.042443][ T7431] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 198.042458][ T7431] RIP: 0033:0x7fe8263772da [ 198.042473][ T7431] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 198.042487][ T7431] RSP: 002b:00007fe8271a2e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 198.042506][ T7431] RAX: ffffffffffffffda RBX: 00007fe8271a2f00 RCX: 00007fe8263772da [ 198.042518][ T7431] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fe8271a2ec0 [ 198.042529][ T7431] RBP: 00000000200124c0 R08: 00007fe8271a2f00 R09: 0000000000000000 [ 198.042540][ T7431] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 198.042550][ T7431] R13: 00007fe8271a2ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 198.042579][ T7431] [ 198.042605][ T7431] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.077684][ T7429] loop3: detected capacity change from 0 to 32768 [ 198.137105][ T7428] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 198.149673][ T7431] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.165653][ T10] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 198.282746][ T7433] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.435819][ T7433] CPU: 1 UID: 0 PID: 7433 Comm: syz.0.119 Not tainted syzkaller #0 PREEMPT(full) [ 198.435859][ T7433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 198.435882][ T7433] Call Trace: [ 198.435900][ T7433] [ 198.435908][ T7433] dump_stack_lvl+0x189/0x250 [ 198.435934][ T7433] ? __pfx_dump_stack_lvl+0x10/0x10 [ 198.435951][ T7433] ? __pfx__printk+0x10/0x10 [ 198.435977][ T7433] ? kernfs_path_from_node+0x250/0x290 [ 198.435991][ T7433] ? kernfs_path_from_node+0x2f/0x290 [ 198.436011][ T7433] sysfs_create_dir_ns+0x259/0x280 [ 198.436035][ T7433] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 198.436058][ T7433] ? do_raw_spin_unlock+0x122/0x240 [ 198.436081][ T7433] kobject_add_internal+0x59f/0xb40 [ 198.436110][ T7433] kobject_init_and_add+0x125/0x190 [ 198.436135][ T7433] ? __pfx_kobject_init_and_add+0x10/0x10 [ 198.436155][ T7433] ? __raw_spin_lock_init+0x45/0x100 [ 198.436183][ T7433] ? __init_swait_queue_head+0xa9/0x150 [ 198.436204][ T7433] gfs2_sys_fs_add+0x234/0x450 [ 198.436226][ T7433] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 198.436250][ T7433] ? is_dynamic_key+0xd6/0x1c0 [ 198.436270][ T7433] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 198.436300][ T7433] gfs2_fill_super+0x13c0/0x20d0 [ 198.436336][ T7433] ? __pfx_gfs2_fill_super+0x10/0x10 [ 198.436360][ T7433] ? sb_set_blocksize+0x104/0x180 [ 198.436380][ T7433] ? setup_bdev_super+0x4c1/0x5b0 [ 198.436400][ T7433] get_tree_bdev_flags+0x40e/0x4d0 [ 198.436418][ T7433] ? __pfx_gfs2_fill_super+0x10/0x10 [ 198.436440][ T7433] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 198.436456][ T7433] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 198.436485][ T7433] gfs2_get_tree+0x51/0x1e0 [ 198.436511][ T7433] vfs_get_tree+0x92/0x2b0 [ 198.436529][ T7433] do_new_mount+0x302/0x9e0 [ 198.436546][ T7433] ? apparmor_capable+0x137/0x1b0 [ 198.436572][ T7433] ? __pfx_do_new_mount+0x10/0x10 [ 198.436595][ T7433] ? ns_capable+0x8a/0xf0 [ 198.436619][ T7433] ? kmem_cache_free+0x19b/0x690 [ 198.436646][ T7433] __se_sys_mount+0x313/0x410 [ 198.436670][ T7433] ? __pfx___se_sys_mount+0x10/0x10 [ 198.436691][ T7433] ? do_syscall_64+0xbe/0xfa0 [ 198.436707][ T7433] ? __x64_sys_mount+0x20/0xc0 [ 198.436733][ T7433] do_syscall_64+0xfa/0xfa0 [ 198.436748][ T7433] ? lockdep_hardirqs_on+0x9c/0x150 [ 198.436766][ T7433] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 198.436783][ T7433] ? clear_bhb_loop+0x60/0xb0 [ 198.436803][ T7433] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 198.436820][ T7433] RIP: 0033:0x7f7d585772da [ 198.436841][ T7433] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 198.436855][ T7433] RSP: 002b:00007f7d5934ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 198.436875][ T7433] RAX: ffffffffffffffda RBX: 00007f7d5934af00 RCX: 00007f7d585772da [ 198.436894][ T7433] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f7d5934aec0 [ 198.436906][ T7433] RBP: 00000000200124c0 R08: 00007f7d5934af00 R09: 0000000000000000 [ 198.436917][ T7433] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 198.436932][ T7433] R13: 00007f7d5934aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 198.436960][ T7433] [ 198.436986][ T7433] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.439668][ T7429] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.451375][ T7433] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.467263][ T7431] syz.2.122 (7431): drop_caches: 2 [ 198.479371][ T7429] CPU: 1 UID: 0 PID: 7429 Comm: syz.3.121 Not tainted syzkaller #0 PREEMPT(full) [ 198.479395][ T7429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 198.479405][ T7429] Call Trace: [ 198.479413][ T7429] [ 198.479421][ T7429] dump_stack_lvl+0x189/0x250 [ 198.479448][ T7429] ? __pfx_dump_stack_lvl+0x10/0x10 [ 198.479466][ T7429] ? __pfx__printk+0x10/0x10 [ 198.479492][ T7429] ? kernfs_path_from_node+0x250/0x290 [ 198.479507][ T7429] ? kernfs_path_from_node+0x2f/0x290 [ 198.479525][ T7429] sysfs_create_dir_ns+0x259/0x280 [ 198.479569][ T7429] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 198.479594][ T7429] ? do_raw_spin_unlock+0x122/0x240 [ 198.479617][ T7429] kobject_add_internal+0x59f/0xb40 [ 198.479645][ T7429] kobject_init_and_add+0x125/0x190 [ 198.479670][ T7429] ? __pfx_kobject_init_and_add+0x10/0x10 [ 198.479690][ T7429] ? __raw_spin_lock_init+0x45/0x100 [ 198.479710][ T7429] ? __init_swait_queue_head+0xa9/0x150 [ 198.479732][ T7429] gfs2_sys_fs_add+0x234/0x450 [ 198.479754][ T7429] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 198.479779][ T7429] ? is_dynamic_key+0xd6/0x1c0 [ 198.479798][ T7429] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 198.479830][ T7429] gfs2_fill_super+0x13c0/0x20d0 [ 198.479868][ T7429] ? __pfx_gfs2_fill_super+0x10/0x10 [ 198.479900][ T7429] ? sb_set_blocksize+0x104/0x180 [ 198.479921][ T7429] ? setup_bdev_super+0x4c1/0x5b0 [ 198.479941][ T7429] get_tree_bdev_flags+0x40e/0x4d0 [ 198.479959][ T7429] ? __pfx_gfs2_fill_super+0x10/0x10 [ 198.479981][ T7429] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 198.479996][ T7429] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 198.480026][ T7429] gfs2_get_tree+0x51/0x1e0 [ 198.480051][ T7429] vfs_get_tree+0x92/0x2b0 [ 198.480071][ T7429] do_new_mount+0x302/0x9e0 [ 198.480088][ T7429] ? apparmor_capable+0x137/0x1b0 [ 198.480114][ T7429] ? __pfx_do_new_mount+0x10/0x10 [ 198.480132][ T7429] ? ns_capable+0x8a/0xf0 [ 198.480157][ T7429] ? kmem_cache_free+0x19b/0x690 [ 198.480184][ T7429] __se_sys_mount+0x313/0x410 [ 198.480209][ T7429] ? __pfx___se_sys_mount+0x10/0x10 [ 198.480231][ T7429] ? do_syscall_64+0xbe/0xfa0 [ 198.480246][ T7429] ? __x64_sys_mount+0x20/0xc0 [ 198.480267][ T7429] do_syscall_64+0xfa/0xfa0 [ 198.480282][ T7429] ? lockdep_hardirqs_on+0x9c/0x150 [ 198.480299][ T7429] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 198.480315][ T7429] ? clear_bhb_loop+0x60/0xb0 [ 198.480334][ T7429] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 198.480350][ T7429] RIP: 0033:0x7fbbdd5772da [ 198.480365][ T7429] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 198.480379][ T7429] RSP: 002b:00007fbbde38ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 198.480398][ T7429] RAX: ffffffffffffffda RBX: 00007fbbde38af00 RCX: 00007fbbdd5772da [ 198.480410][ T7429] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fbbde38aec0 [ 198.480421][ T7429] RBP: 00000000200124c0 R08: 00007fbbde38af00 R09: 0000000000000000 [ 198.480432][ T7429] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 198.480442][ T7429] R13: 00007fbbde38aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 198.480471][ T7429] [ 198.480496][ T7429] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.488078][ T7431] syz.2.122 (7431): drop_caches: 2 [ 198.629435][ T7429] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.679134][ T10] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 198.872572][ T7429] syz.3.121 (7429): drop_caches: 2 2025/09/25 08:30:23 executed programs: 119 [ 199.073030][ T7436] loop1: detected capacity change from 0 to 32768 [ 199.193566][ T7429] syz.3.121 (7429): drop_caches: 2 [ 199.243310][ T7433] syz.0.119 (7433): drop_caches: 2 [ 199.249018][ T7436] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.256832][ T7436] CPU: 0 UID: 0 PID: 7436 Comm: syz.1.123 Not tainted syzkaller #0 PREEMPT(full) [ 199.256856][ T7436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 199.256868][ T7436] Call Trace: [ 199.256875][ T7436] [ 199.256883][ T7436] dump_stack_lvl+0x189/0x250 [ 199.256911][ T7436] ? __pfx_dump_stack_lvl+0x10/0x10 [ 199.256931][ T7436] ? __pfx__printk+0x10/0x10 [ 199.256957][ T7436] ? kernfs_path_from_node+0x250/0x290 [ 199.256972][ T7436] ? kernfs_path_from_node+0x2f/0x290 [ 199.257004][ T7436] sysfs_create_dir_ns+0x259/0x280 [ 199.257036][ T7436] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 199.257060][ T7436] ? do_raw_spin_unlock+0x122/0x240 [ 199.257084][ T7436] kobject_add_internal+0x59f/0xb40 [ 199.257112][ T7436] kobject_init_and_add+0x125/0x190 [ 199.257146][ T7436] ? __pfx_kobject_init_and_add+0x10/0x10 [ 199.257167][ T7436] ? __raw_spin_lock_init+0x45/0x100 [ 199.257187][ T7436] ? __init_swait_queue_head+0xa9/0x150 [ 199.257209][ T7436] gfs2_sys_fs_add+0x234/0x450 [ 199.257232][ T7436] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 199.257258][ T7436] ? is_dynamic_key+0xd6/0x1c0 [ 199.257278][ T7436] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 199.257312][ T7436] gfs2_fill_super+0x13c0/0x20d0 [ 199.257351][ T7436] ? __pfx_gfs2_fill_super+0x10/0x10 [ 199.257378][ T7436] ? sb_set_blocksize+0x104/0x180 [ 199.257406][ T7436] ? setup_bdev_super+0x4c1/0x5b0 [ 199.257428][ T7436] get_tree_bdev_flags+0x40e/0x4d0 [ 199.257447][ T7436] ? __pfx_gfs2_fill_super+0x10/0x10 [ 199.257470][ T7436] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 199.257486][ T7436] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 199.257523][ T7436] gfs2_get_tree+0x51/0x1e0 [ 199.257549][ T7436] vfs_get_tree+0x92/0x2b0 [ 199.257570][ T7436] do_new_mount+0x302/0x9e0 [ 199.257588][ T7436] ? apparmor_capable+0x137/0x1b0 [ 199.257616][ T7436] ? __pfx_do_new_mount+0x10/0x10 [ 199.257634][ T7436] ? ns_capable+0x8a/0xf0 [ 199.257659][ T7436] ? kmem_cache_free+0x19b/0x690 [ 199.257688][ T7436] __se_sys_mount+0x313/0x410 [ 199.257714][ T7436] ? __pfx___se_sys_mount+0x10/0x10 [ 199.257737][ T7436] ? do_syscall_64+0xbe/0xfa0 [ 199.257759][ T7436] ? __x64_sys_mount+0x20/0xc0 [ 199.257781][ T7436] do_syscall_64+0xfa/0xfa0 [ 199.257797][ T7436] ? lockdep_hardirqs_on+0x9c/0x150 [ 199.257819][ T7436] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 199.257836][ T7436] ? clear_bhb_loop+0x60/0xb0 [ 199.257856][ T7436] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 199.257872][ T7436] RIP: 0033:0x7f2579d772da [ 199.257888][ T7436] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 199.257903][ T7436] RSP: 002b:00007f257aa9be78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 199.257922][ T7436] RAX: ffffffffffffffda RBX: 00007f257aa9bf00 RCX: 00007f2579d772da [ 199.257935][ T7436] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f257aa9bec0 [ 199.257946][ T7436] RBP: 00000000200124c0 R08: 00007f257aa9bf00 R09: 0000000000000000 [ 199.257957][ T7436] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 199.257967][ T7436] R13: 00007f257aa9bec0 R14: 00000000000125b0 R15: 0000000020000480 [ 199.257998][ T7436] [ 199.258025][ T7436] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.382365][ T7433] syz.0.119 (7433): drop_caches: 2 [ 199.474849][ T7436] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.723205][ T7436] syz.1.123 (7436): drop_caches: 2 [ 199.782556][ T10] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 1103ms [ 199.794383][ T7436] syz.1.123 (7436): drop_caches: 2 [ 199.810685][ T10] gfs2: fsid=syz:syz.0: jid=0: Done [ 199.831009][ T7428] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 199.882840][ T7428] gfs2: fsid=syz:syz.0: can't create logd thread: -4 [ 200.792880][ T7453] loop3: detected capacity change from 0 to 32768 [ 200.811918][ T7450] loop2: detected capacity change from 0 to 32768 [ 200.860295][ T7453] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 200.889226][ T7453] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 200.898696][ T7450] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.919355][ T7450] CPU: 0 UID: 0 PID: 7450 Comm: syz.2.124 Not tainted syzkaller #0 PREEMPT(full) [ 200.919394][ T7450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 200.919405][ T7450] Call Trace: [ 200.919412][ T7450] [ 200.919419][ T7450] dump_stack_lvl+0x189/0x250 [ 200.919455][ T7450] ? __pfx_dump_stack_lvl+0x10/0x10 [ 200.919473][ T7450] ? __pfx__printk+0x10/0x10 [ 200.919500][ T7450] ? kernfs_path_from_node+0x250/0x290 [ 200.919515][ T7450] ? kernfs_path_from_node+0x2f/0x290 [ 200.919534][ T7450] sysfs_create_dir_ns+0x259/0x280 [ 200.919558][ T7450] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 200.919583][ T7450] ? do_raw_spin_unlock+0x122/0x240 [ 200.919607][ T7450] kobject_add_internal+0x59f/0xb40 [ 200.919636][ T7450] kobject_init_and_add+0x125/0x190 [ 200.919663][ T7450] ? __pfx_kobject_init_and_add+0x10/0x10 [ 200.919683][ T7450] ? __raw_spin_lock_init+0x45/0x100 [ 200.919703][ T7450] ? __init_swait_queue_head+0xa9/0x150 [ 200.919725][ T7450] gfs2_sys_fs_add+0x234/0x450 [ 200.919748][ T7450] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 200.919774][ T7450] ? is_dynamic_key+0xd6/0x1c0 [ 200.919794][ T7450] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 200.919827][ T7450] gfs2_fill_super+0x13c0/0x20d0 [ 200.919866][ T7450] ? __pfx_gfs2_fill_super+0x10/0x10 [ 200.919893][ T7450] ? sb_set_blocksize+0x104/0x180 [ 200.919914][ T7450] ? setup_bdev_super+0x4c1/0x5b0 [ 200.919936][ T7450] get_tree_bdev_flags+0x40e/0x4d0 [ 200.919954][ T7450] ? __pfx_gfs2_fill_super+0x10/0x10 [ 200.919976][ T7450] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 200.919992][ T7450] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 200.920024][ T7450] gfs2_get_tree+0x51/0x1e0 [ 200.920049][ T7450] vfs_get_tree+0x92/0x2b0 [ 200.920069][ T7450] do_new_mount+0x302/0x9e0 [ 200.920084][ T7450] ? apparmor_capable+0x137/0x1b0 [ 200.920111][ T7450] ? __pfx_do_new_mount+0x10/0x10 [ 200.920130][ T7450] ? ns_capable+0x8a/0xf0 [ 200.920156][ T7450] ? kmem_cache_free+0x19b/0x690 [ 200.920185][ T7450] __se_sys_mount+0x313/0x410 [ 200.920210][ T7450] ? __pfx___se_sys_mount+0x10/0x10 [ 200.920233][ T7450] ? do_syscall_64+0xbe/0xfa0 [ 200.920249][ T7450] ? __x64_sys_mount+0x20/0xc0 [ 200.920271][ T7450] do_syscall_64+0xfa/0xfa0 [ 200.920286][ T7450] ? lockdep_hardirqs_on+0x9c/0x150 [ 200.920304][ T7450] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 200.920325][ T7450] ? clear_bhb_loop+0x60/0xb0 [ 200.920346][ T7450] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 200.920362][ T7450] RIP: 0033:0x7fe8263772da [ 200.920379][ T7450] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 200.920393][ T7450] RSP: 002b:00007fe8271a2e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 200.920411][ T7450] RAX: ffffffffffffffda RBX: 00007fe8271a2f00 RCX: 00007fe8263772da [ 200.920425][ T7450] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fe8271a2ec0 [ 200.920442][ T7450] RBP: 00000000200124c0 R08: 00007fe8271a2f00 R09: 0000000000000000 [ 200.920453][ T7450] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 200.920464][ T7450] R13: 00007fe8271a2ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 200.920494][ T7450] [ 200.920576][ T7450] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.977245][ T7459] loop1: detected capacity change from 0 to 32768 [ 200.987889][ T7455] loop0: detected capacity change from 0 to 32768 [ 201.028096][ T7450] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.138158][ T7461] loop4: detected capacity change from 0 to 32768 [ 201.303466][ T7453] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 201.312800][ T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 201.319903][ T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 201.380626][ T7459] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.399876][ T7455] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.408611][ T7459] CPU: 0 UID: 0 PID: 7459 Comm: syz.1.127 Not tainted syzkaller #0 PREEMPT(full) [ 201.408634][ T7459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 201.408645][ T7459] Call Trace: [ 201.408656][ T7459] [ 201.408663][ T7459] dump_stack_lvl+0x189/0x250 [ 201.408686][ T7459] ? __pfx_dump_stack_lvl+0x10/0x10 [ 201.408704][ T7459] ? __pfx__printk+0x10/0x10 [ 201.408729][ T7459] ? kernfs_path_from_node+0x250/0x290 [ 201.408744][ T7459] ? kernfs_path_from_node+0x2f/0x290 [ 201.408762][ T7459] sysfs_create_dir_ns+0x259/0x280 [ 201.408786][ T7459] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 201.408809][ T7459] ? do_raw_spin_unlock+0x122/0x240 [ 201.408831][ T7459] kobject_add_internal+0x59f/0xb40 [ 201.408860][ T7459] kobject_init_and_add+0x125/0x190 [ 201.408885][ T7459] ? __pfx_kobject_init_and_add+0x10/0x10 [ 201.408906][ T7459] ? __raw_spin_lock_init+0x45/0x100 [ 201.408926][ T7459] ? __init_swait_queue_head+0xa9/0x150 [ 201.408948][ T7459] gfs2_sys_fs_add+0x234/0x450 [ 201.408971][ T7459] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 201.408994][ T7459] ? is_dynamic_key+0xd6/0x1c0 [ 201.409013][ T7459] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 201.409049][ T7459] gfs2_fill_super+0x13c0/0x20d0 [ 201.409085][ T7459] ? __pfx_gfs2_fill_super+0x10/0x10 [ 201.409109][ T7459] ? sb_set_blocksize+0x104/0x180 [ 201.409129][ T7459] ? setup_bdev_super+0x4c1/0x5b0 [ 201.409149][ T7459] get_tree_bdev_flags+0x40e/0x4d0 [ 201.409166][ T7459] ? __pfx_gfs2_fill_super+0x10/0x10 [ 201.409187][ T7459] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 201.409202][ T7459] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 201.409232][ T7459] gfs2_get_tree+0x51/0x1e0 [ 201.409255][ T7459] vfs_get_tree+0x92/0x2b0 [ 201.409274][ T7459] do_new_mount+0x302/0x9e0 [ 201.409291][ T7459] ? apparmor_capable+0x137/0x1b0 [ 201.409317][ T7459] ? __pfx_do_new_mount+0x10/0x10 [ 201.409335][ T7459] ? ns_capable+0x8a/0xf0 [ 201.409360][ T7459] ? kmem_cache_free+0x19b/0x690 [ 201.409385][ T7459] __se_sys_mount+0x313/0x410 [ 201.409409][ T7459] ? __pfx___se_sys_mount+0x10/0x10 [ 201.409431][ T7459] ? do_syscall_64+0xbe/0xfa0 [ 201.409448][ T7459] ? __x64_sys_mount+0x20/0xc0 [ 201.409469][ T7459] do_syscall_64+0xfa/0xfa0 [ 201.409485][ T7459] ? lockdep_hardirqs_on+0x9c/0x150 [ 201.409502][ T7459] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 201.409518][ T7459] ? clear_bhb_loop+0x60/0xb0 [ 201.409538][ T7459] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 201.409552][ T7459] RIP: 0033:0x7f2579d772da [ 201.409568][ T7459] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 201.409582][ T7459] RSP: 002b:00007f257aa9be78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 201.409607][ T7459] RAX: ffffffffffffffda RBX: 00007f257aa9bf00 RCX: 00007f2579d772da [ 201.409618][ T7459] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f257aa9bec0 [ 201.409628][ T7459] RBP: 00000000200124c0 R08: 00007f257aa9bf00 R09: 0000000000000000 [ 201.409638][ T7459] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 201.409648][ T7459] R13: 00007f257aa9bec0 R14: 00000000000125b0 R15: 0000000020000480 [ 201.409675][ T7459] [ 201.410797][ T7455] CPU: 1 UID: 0 PID: 7455 Comm: syz.0.126 Not tainted syzkaller #0 PREEMPT(full) [ 201.410820][ T7455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 201.410830][ T7455] Call Trace: [ 201.410838][ T7455] [ 201.410845][ T7455] dump_stack_lvl+0x189/0x250 [ 201.410872][ T7455] ? __pfx_dump_stack_lvl+0x10/0x10 [ 201.410890][ T7455] ? __pfx__printk+0x10/0x10 [ 201.410915][ T7455] ? kernfs_path_from_node+0x250/0x290 [ 201.410930][ T7455] ? kernfs_path_from_node+0x2f/0x290 [ 201.410948][ T7455] sysfs_create_dir_ns+0x259/0x280 [ 201.410974][ T7455] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 201.410998][ T7455] ? do_raw_spin_unlock+0x122/0x240 [ 201.411021][ T7455] kobject_add_internal+0x59f/0xb40 [ 201.411049][ T7455] kobject_init_and_add+0x125/0x190 [ 201.411073][ T7455] ? __pfx_kobject_init_and_add+0x10/0x10 [ 201.411093][ T7455] ? __raw_spin_lock_init+0x45/0x100 [ 201.411113][ T7455] ? __init_swait_queue_head+0xa9/0x150 [ 201.411134][ T7455] gfs2_sys_fs_add+0x234/0x450 [ 201.411156][ T7455] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 201.411181][ T7455] ? is_dynamic_key+0xd6/0x1c0 [ 201.411201][ T7455] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 201.411244][ T7455] gfs2_fill_super+0x13c0/0x20d0 [ 201.411281][ T7455] ? __pfx_gfs2_fill_super+0x10/0x10 [ 201.411308][ T7455] ? sb_set_blocksize+0x104/0x180 [ 201.411329][ T7455] ? setup_bdev_super+0x4c1/0x5b0 [ 201.411355][ T7455] get_tree_bdev_flags+0x40e/0x4d0 [ 201.411373][ T7455] ? __pfx_gfs2_fill_super+0x10/0x10 [ 201.411394][ T7455] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 201.411409][ T7455] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 201.411440][ T7455] gfs2_get_tree+0x51/0x1e0 [ 201.411465][ T7455] vfs_get_tree+0x92/0x2b0 [ 201.411484][ T7455] do_new_mount+0x302/0x9e0 [ 201.411502][ T7455] ? apparmor_capable+0x137/0x1b0 [ 201.411529][ T7455] ? __pfx_do_new_mount+0x10/0x10 [ 201.411547][ T7455] ? ns_capable+0x8a/0xf0 [ 201.411571][ T7455] ? kmem_cache_free+0x19b/0x690 [ 201.411598][ T7455] __se_sys_mount+0x313/0x410 [ 201.411623][ T7455] ? __pfx___se_sys_mount+0x10/0x10 [ 201.411646][ T7455] ? do_syscall_64+0xbe/0xfa0 [ 201.411661][ T7455] ? __x64_sys_mount+0x20/0xc0 [ 201.411681][ T7455] do_syscall_64+0xfa/0xfa0 [ 201.411697][ T7455] ? lockdep_hardirqs_on+0x9c/0x150 [ 201.411714][ T7455] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 201.411731][ T7455] ? clear_bhb_loop+0x60/0xb0 [ 201.411750][ T7455] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 201.411766][ T7455] RIP: 0033:0x7f7d585772da [ 201.411781][ T7455] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 201.411795][ T7455] RSP: 002b:00007f7d5934ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 201.411814][ T7455] RAX: ffffffffffffffda RBX: 00007f7d5934af00 RCX: 00007f7d585772da [ 201.411832][ T7455] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f7d5934aec0 [ 201.411844][ T7455] RBP: 00000000200124c0 R08: 00007f7d5934af00 R09: 0000000000000000 [ 201.411854][ T7455] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 201.411865][ T7455] R13: 00007f7d5934aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 201.411893][ T7455] [ 201.411917][ T7455] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.446138][ T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 126ms [ 201.465810][ T7459] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.470116][ T9] gfs2: fsid=syz:syz.0: jid=0: Done [ 201.479826][ T7461] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.480864][ T7453] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 201.498081][ T7461] CPU: 1 UID: 0 PID: 7461 Comm: syz.4.128 Not tainted syzkaller #0 PREEMPT(full) [ 201.498106][ T7461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 201.498117][ T7461] Call Trace: [ 201.498124][ T7461] [ 201.498131][ T7461] dump_stack_lvl+0x189/0x250 [ 201.498157][ T7461] ? __pfx_dump_stack_lvl+0x10/0x10 [ 201.498176][ T7461] ? __pfx__printk+0x10/0x10 [ 201.498202][ T7461] ? kernfs_path_from_node+0x250/0x290 [ 201.498216][ T7461] ? kernfs_path_from_node+0x2f/0x290 [ 201.498234][ T7461] sysfs_create_dir_ns+0x259/0x280 [ 201.498259][ T7461] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 201.498283][ T7461] ? do_raw_spin_unlock+0x122/0x240 [ 201.498305][ T7461] kobject_add_internal+0x59f/0xb40 [ 201.498338][ T7461] kobject_init_and_add+0x125/0x190 [ 201.498362][ T7461] ? __pfx_kobject_init_and_add+0x10/0x10 [ 201.498382][ T7461] ? __raw_spin_lock_init+0x45/0x100 [ 201.498401][ T7461] ? __init_swait_queue_head+0xa9/0x150 [ 201.498423][ T7461] gfs2_sys_fs_add+0x234/0x450 [ 201.498445][ T7461] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 201.498469][ T7461] ? is_dynamic_key+0xd6/0x1c0 [ 201.498488][ T7461] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 201.498521][ T7461] gfs2_fill_super+0x13c0/0x20d0 [ 201.498559][ T7461] ? __pfx_gfs2_fill_super+0x10/0x10 [ 201.498584][ T7461] ? sb_set_blocksize+0x104/0x180 [ 201.498605][ T7461] ? setup_bdev_super+0x4c1/0x5b0 [ 201.498626][ T7461] get_tree_bdev_flags+0x40e/0x4d0 [ 201.498644][ T7461] ? __pfx_gfs2_fill_super+0x10/0x10 [ 201.498666][ T7461] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 201.498682][ T7461] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 201.498713][ T7461] gfs2_get_tree+0x51/0x1e0 [ 201.498738][ T7461] vfs_get_tree+0x92/0x2b0 [ 201.498757][ T7461] do_new_mount+0x302/0x9e0 [ 201.498775][ T7461] ? apparmor_capable+0x137/0x1b0 [ 201.498801][ T7461] ? __pfx_do_new_mount+0x10/0x10 [ 201.498820][ T7461] ? ns_capable+0x8a/0xf0 [ 201.498844][ T7461] ? kmem_cache_free+0x19b/0x690 [ 201.498872][ T7461] __se_sys_mount+0x313/0x410 [ 201.498897][ T7461] ? __pfx___se_sys_mount+0x10/0x10 [ 201.498920][ T7461] ? do_syscall_64+0xbe/0xfa0 [ 201.498935][ T7461] ? __x64_sys_mount+0x20/0xc0 [ 201.498955][ T7461] do_syscall_64+0xfa/0xfa0 [ 201.498970][ T7461] ? lockdep_hardirqs_on+0x9c/0x150 [ 201.498988][ T7461] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 201.499004][ T7461] ? clear_bhb_loop+0x60/0xb0 [ 201.499023][ T7461] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 201.499043][ T7461] RIP: 0033:0x7f49a9b772da [ 201.499059][ T7461] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 201.499073][ T7461] RSP: 002b:00007f49aa984e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 201.499092][ T7461] RAX: ffffffffffffffda RBX: 00007f49aa984f00 RCX: 00007f49a9b772da [ 201.499104][ T7461] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f49aa984ec0 [ 201.499115][ T7461] RBP: 00000000200124c0 R08: 00007f49aa984f00 R09: 0000000000000000 [ 201.499125][ T7461] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 201.499136][ T7461] R13: 00007f49aa984ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 201.499164][ T7461] [ 201.499461][ T7461] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.521555][ T7455] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.689224][ T7461] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.710855][ T7459] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.818921][ T7455] syz.0.126 (7455): drop_caches: 2 [ 201.844760][ T7459] syz.1.127 (7459): drop_caches: 2 [ 201.967496][ T7455] syz.0.126 (7455): drop_caches: 2 [ 201.992501][ T7453] gfs2: fsid=syz:syz.0: found 1 quota changes [ 202.121290][ T7459] syz.1.127 (7459): drop_caches: 2 [ 202.134709][ T7450] syz.2.124 (7450): drop_caches: 2 [ 202.135103][ T7450] syz.2.124 (7450): drop_caches: 2 [ 202.217422][ T7453] syz.3.125 (7453): drop_caches: 2 [ 202.250992][ T7461] syz.4.128 (7461): drop_caches: 2 [ 202.482822][ T7453] syz.3.125 (7453): drop_caches: 2 [ 202.555135][ T7461] syz.4.128 (7461): drop_caches: 2 [ 203.858312][ T7481] loop1: detected capacity change from 0 to 32768 [ 203.888030][ T7481] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 203.919198][ T7481] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 203.922716][ T7485] loop0: detected capacity change from 0 to 32768 [ 203.938393][ T7484] loop2: detected capacity change from 0 to 32768 [ 203.961070][ T7481] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 203.965180][ T7487] loop4: detected capacity change from 0 to 32768 [ 203.985961][ T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 204.001524][ T7484] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.007124][ T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 204.017662][ T7484] CPU: 1 UID: 0 PID: 7484 Comm: syz.2.131 Not tainted syzkaller #0 PREEMPT(full) [ 204.017688][ T7484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 204.017699][ T7484] Call Trace: [ 204.017706][ T7484] [ 204.017713][ T7484] dump_stack_lvl+0x189/0x250 [ 204.017740][ T7484] ? __pfx_dump_stack_lvl+0x10/0x10 [ 204.017757][ T7484] ? __pfx__printk+0x10/0x10 [ 204.017783][ T7484] ? kernfs_path_from_node+0x250/0x290 [ 204.017799][ T7484] ? kernfs_path_from_node+0x2f/0x290 [ 204.017820][ T7484] sysfs_create_dir_ns+0x259/0x280 [ 204.017847][ T7484] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 204.017870][ T7484] ? do_raw_spin_unlock+0x122/0x240 [ 204.017891][ T7484] kobject_add_internal+0x59f/0xb40 [ 204.017918][ T7484] kobject_init_and_add+0x125/0x190 [ 204.017939][ T7484] ? __pfx_kobject_init_and_add+0x10/0x10 [ 204.017959][ T7484] ? __raw_spin_lock_init+0x45/0x100 [ 204.017980][ T7484] ? __init_swait_queue_head+0xa9/0x150 [ 204.018003][ T7484] gfs2_sys_fs_add+0x234/0x450 [ 204.018025][ T7484] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 204.018052][ T7484] ? is_dynamic_key+0xd6/0x1c0 [ 204.018072][ T7484] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 204.018106][ T7484] gfs2_fill_super+0x13c0/0x20d0 [ 204.018144][ T7484] ? __pfx_gfs2_fill_super+0x10/0x10 [ 204.018171][ T7484] ? sb_set_blocksize+0x104/0x180 [ 204.018207][ T7484] ? setup_bdev_super+0x4c1/0x5b0 [ 204.018229][ T7484] get_tree_bdev_flags+0x40e/0x4d0 [ 204.018248][ T7484] ? __pfx_gfs2_fill_super+0x10/0x10 [ 204.018271][ T7484] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 204.018287][ T7484] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 204.018319][ T7484] gfs2_get_tree+0x51/0x1e0 [ 204.018343][ T7484] vfs_get_tree+0x92/0x2b0 [ 204.018363][ T7484] do_new_mount+0x302/0x9e0 [ 204.018380][ T7484] ? apparmor_capable+0x137/0x1b0 [ 204.018404][ T7484] ? __pfx_do_new_mount+0x10/0x10 [ 204.018424][ T7484] ? ns_capable+0x8a/0xf0 [ 204.018449][ T7484] ? kmem_cache_free+0x19b/0x690 [ 204.018478][ T7484] __se_sys_mount+0x313/0x410 [ 204.018505][ T7484] ? __pfx___se_sys_mount+0x10/0x10 [ 204.018530][ T7484] ? do_syscall_64+0xbe/0xfa0 [ 204.018546][ T7484] ? __x64_sys_mount+0x20/0xc0 [ 204.018568][ T7484] do_syscall_64+0xfa/0xfa0 [ 204.018585][ T7484] ? lockdep_hardirqs_on+0x9c/0x150 [ 204.018602][ T7484] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 204.018618][ T7484] ? clear_bhb_loop+0x60/0xb0 [ 204.018639][ T7484] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 204.018656][ T7484] RIP: 0033:0x7fe8263772da [ 204.018673][ T7484] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 204.018688][ T7484] RSP: 002b:00007fe8271a2e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 204.018707][ T7484] RAX: ffffffffffffffda RBX: 00007fe8271a2f00 RCX: 00007fe8263772da [ 204.018720][ T7484] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fe8271a2ec0 [ 204.018733][ T7484] RBP: 00000000200124c0 R08: 00007fe8271a2f00 R09: 0000000000000000 [ 204.018745][ T7484] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 204.018755][ T7484] R13: 00007fe8271a2ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 204.018780][ T7484] [ 204.018806][ T7484] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.320570][ T7489] loop3: detected capacity change from 0 to 32768 [ 204.323153][ T7484] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.330525][ T7485] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.400737][ T7485] CPU: 1 UID: 0 PID: 7485 Comm: syz.0.130 Not tainted syzkaller #0 PREEMPT(full) [ 204.400761][ T7485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 204.400772][ T7485] Call Trace: [ 204.400780][ T7485] [ 204.400788][ T7485] dump_stack_lvl+0x189/0x250 [ 204.400817][ T7485] ? __pfx_dump_stack_lvl+0x10/0x10 [ 204.400837][ T7485] ? __pfx__printk+0x10/0x10 [ 204.400863][ T7485] ? kernfs_path_from_node+0x250/0x290 [ 204.400878][ T7485] ? kernfs_path_from_node+0x2f/0x290 [ 204.400899][ T7485] sysfs_create_dir_ns+0x259/0x280 [ 204.400924][ T7485] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 204.400950][ T7485] ? do_raw_spin_unlock+0x122/0x240 [ 204.400974][ T7485] kobject_add_internal+0x59f/0xb40 [ 204.401003][ T7485] kobject_init_and_add+0x125/0x190 [ 204.401029][ T7485] ? __pfx_kobject_init_and_add+0x10/0x10 [ 204.401050][ T7485] ? __raw_spin_lock_init+0x45/0x100 [ 204.401070][ T7485] ? __init_swait_queue_head+0xa9/0x150 [ 204.401093][ T7485] gfs2_sys_fs_add+0x234/0x450 [ 204.401117][ T7485] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 204.401144][ T7485] ? is_dynamic_key+0xd6/0x1c0 [ 204.401175][ T7485] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 204.401210][ T7485] gfs2_fill_super+0x13c0/0x20d0 [ 204.401249][ T7485] ? __pfx_gfs2_fill_super+0x10/0x10 [ 204.401277][ T7485] ? sb_set_blocksize+0x104/0x180 [ 204.401300][ T7485] ? setup_bdev_super+0x4c1/0x5b0 [ 204.401322][ T7485] get_tree_bdev_flags+0x40e/0x4d0 [ 204.401341][ T7485] ? __pfx_gfs2_fill_super+0x10/0x10 [ 204.401364][ T7485] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 204.401380][ T7485] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 204.401413][ T7485] gfs2_get_tree+0x51/0x1e0 [ 204.401439][ T7485] vfs_get_tree+0x92/0x2b0 [ 204.401460][ T7485] do_new_mount+0x302/0x9e0 [ 204.401478][ T7485] ? apparmor_capable+0x137/0x1b0 [ 204.401506][ T7485] ? __pfx_do_new_mount+0x10/0x10 [ 204.401525][ T7485] ? ns_capable+0x8a/0xf0 [ 204.401551][ T7485] ? kmem_cache_free+0x19b/0x690 [ 204.401580][ T7485] __se_sys_mount+0x313/0x410 [ 204.401606][ T7485] ? __pfx___se_sys_mount+0x10/0x10 [ 204.401630][ T7485] ? do_syscall_64+0xbe/0xfa0 [ 204.401647][ T7485] ? __x64_sys_mount+0x20/0xc0 [ 204.401669][ T7485] do_syscall_64+0xfa/0xfa0 [ 204.401686][ T7485] ? lockdep_hardirqs_on+0x9c/0x150 [ 204.401703][ T7485] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 204.401720][ T7485] ? clear_bhb_loop+0x60/0xb0 [ 204.401741][ T7485] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 204.401758][ T7485] RIP: 0033:0x7f7d585772da [ 204.401774][ T7485] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 204.401790][ T7485] RSP: 002b:00007f7d5934ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 204.401809][ T7485] RAX: ffffffffffffffda RBX: 00007f7d5934af00 RCX: 00007f7d585772da [ 204.401823][ T7485] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f7d5934aec0 [ 204.401836][ T7485] RBP: 00000000200124c0 R08: 00007f7d5934af00 R09: 0000000000000000 [ 204.401848][ T7485] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 204.401860][ T7485] R13: 00007f7d5934aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 204.401890][ T7485] [ 204.401915][ T7485] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.428209][ T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 421ms [ 204.433199][ T7485] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.485866][ T9] gfs2: fsid=syz:syz.0: jid=0: Done [ 204.520457][ T7487] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.524996][ T7481] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 204.553673][ T7487] CPU: 1 UID: 0 PID: 7487 Comm: syz.4.133 Not tainted syzkaller #0 PREEMPT(full) [ 204.553694][ T7487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 204.553706][ T7487] Call Trace: [ 204.553714][ T7487] [ 204.553722][ T7487] dump_stack_lvl+0x189/0x250 [ 204.553749][ T7487] ? __pfx_dump_stack_lvl+0x10/0x10 [ 204.553769][ T7487] ? __pfx__printk+0x10/0x10 [ 204.553795][ T7487] ? kernfs_path_from_node+0x250/0x290 [ 204.553810][ T7487] ? kernfs_path_from_node+0x2f/0x290 [ 204.553830][ T7487] sysfs_create_dir_ns+0x259/0x280 [ 204.553855][ T7487] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 204.553880][ T7487] ? do_raw_spin_unlock+0x122/0x240 [ 204.553903][ T7487] kobject_add_internal+0x59f/0xb40 [ 204.553931][ T7487] kobject_init_and_add+0x125/0x190 [ 204.553956][ T7487] ? __pfx_kobject_init_and_add+0x10/0x10 [ 204.553977][ T7487] ? __raw_spin_lock_init+0x45/0x100 [ 204.553997][ T7487] ? __init_swait_queue_head+0xa9/0x150 [ 204.554020][ T7487] gfs2_sys_fs_add+0x234/0x450 [ 204.554042][ T7487] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 204.554068][ T7487] ? is_dynamic_key+0xd6/0x1c0 [ 204.554088][ T7487] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 204.554120][ T7487] gfs2_fill_super+0x13c0/0x20d0 [ 204.554158][ T7487] ? __pfx_gfs2_fill_super+0x10/0x10 [ 204.554184][ T7487] ? sb_set_blocksize+0x104/0x180 [ 204.554215][ T7487] ? setup_bdev_super+0x4c1/0x5b0 [ 204.554236][ T7487] get_tree_bdev_flags+0x40e/0x4d0 [ 204.554254][ T7487] ? __pfx_gfs2_fill_super+0x10/0x10 [ 204.554277][ T7487] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 204.554293][ T7487] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 204.554324][ T7487] gfs2_get_tree+0x51/0x1e0 [ 204.554349][ T7487] vfs_get_tree+0x92/0x2b0 [ 204.554369][ T7487] do_new_mount+0x302/0x9e0 [ 204.554386][ T7487] ? apparmor_capable+0x137/0x1b0 [ 204.554413][ T7487] ? __pfx_do_new_mount+0x10/0x10 [ 204.554431][ T7487] ? ns_capable+0x8a/0xf0 [ 204.554456][ T7487] ? kmem_cache_free+0x19b/0x690 [ 204.554484][ T7487] __se_sys_mount+0x313/0x410 [ 204.554509][ T7487] ? __pfx___se_sys_mount+0x10/0x10 [ 204.554532][ T7487] ? do_syscall_64+0xbe/0xfa0 [ 204.554548][ T7487] ? __x64_sys_mount+0x20/0xc0 [ 204.554570][ T7487] do_syscall_64+0xfa/0xfa0 [ 204.554585][ T7487] ? lockdep_hardirqs_on+0x9c/0x150 [ 204.554603][ T7487] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 204.554620][ T7487] ? clear_bhb_loop+0x60/0xb0 [ 204.554639][ T7487] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 204.554656][ T7487] RIP: 0033:0x7f49a9b772da [ 204.554673][ T7487] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 204.554688][ T7487] RSP: 002b:00007f49aa984e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 204.554707][ T7487] RAX: ffffffffffffffda RBX: 00007f49aa984f00 RCX: 00007f49a9b772da [ 204.554720][ T7487] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f49aa984ec0 [ 204.554732][ T7487] RBP: 00000000200124c0 R08: 00007f49aa984f00 R09: 0000000000000000 [ 204.554744][ T7487] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 204.554755][ T7487] R13: 00007f49aa984ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 204.554784][ T7487] [ 204.554810][ T7487] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.725472][ T7489] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.726287][ T7487] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.845220][ T7489] CPU: 0 UID: 0 PID: 7489 Comm: syz.3.132 Not tainted syzkaller #0 PREEMPT(full) [ 204.845246][ T7489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 204.845257][ T7489] Call Trace: [ 204.845269][ T7489] [ 204.845278][ T7489] dump_stack_lvl+0x189/0x250 [ 204.845306][ T7489] ? __pfx_dump_stack_lvl+0x10/0x10 [ 204.845325][ T7489] ? __pfx__printk+0x10/0x10 [ 204.845352][ T7489] ? kernfs_path_from_node+0x250/0x290 [ 204.845368][ T7489] ? kernfs_path_from_node+0x2f/0x290 [ 204.845386][ T7489] sysfs_create_dir_ns+0x259/0x280 [ 204.845413][ T7489] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 204.845438][ T7489] ? do_raw_spin_unlock+0x122/0x240 [ 204.845462][ T7489] kobject_add_internal+0x59f/0xb40 [ 204.845490][ T7489] kobject_init_and_add+0x125/0x190 [ 204.845516][ T7489] ? __pfx_kobject_init_and_add+0x10/0x10 [ 204.845536][ T7489] ? __raw_spin_lock_init+0x45/0x100 [ 204.845557][ T7489] ? __init_swait_queue_head+0xa9/0x150 [ 204.845579][ T7489] gfs2_sys_fs_add+0x234/0x450 [ 204.845602][ T7489] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 204.845627][ T7489] ? is_dynamic_key+0xd6/0x1c0 [ 204.845648][ T7489] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 204.845680][ T7489] gfs2_fill_super+0x13c0/0x20d0 [ 204.845719][ T7489] ? __pfx_gfs2_fill_super+0x10/0x10 [ 204.845745][ T7489] ? sb_set_blocksize+0x104/0x180 [ 204.845768][ T7489] ? setup_bdev_super+0x4c1/0x5b0 [ 204.845789][ T7489] get_tree_bdev_flags+0x40e/0x4d0 [ 204.845808][ T7489] ? __pfx_gfs2_fill_super+0x10/0x10 [ 204.845831][ T7489] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 204.845847][ T7489] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 204.845877][ T7489] gfs2_get_tree+0x51/0x1e0 [ 204.845902][ T7489] vfs_get_tree+0x92/0x2b0 [ 204.845923][ T7489] do_new_mount+0x302/0x9e0 [ 204.845942][ T7489] ? apparmor_capable+0x137/0x1b0 [ 204.845967][ T7489] ? __pfx_do_new_mount+0x10/0x10 [ 204.845986][ T7489] ? ns_capable+0x8a/0xf0 [ 204.846016][ T7489] ? kmem_cache_free+0x19b/0x690 [ 204.846044][ T7489] __se_sys_mount+0x313/0x410 [ 204.846069][ T7489] ? __pfx___se_sys_mount+0x10/0x10 [ 204.846092][ T7489] ? do_syscall_64+0xbe/0xfa0 [ 204.846109][ T7489] ? __x64_sys_mount+0x20/0xc0 [ 204.846129][ T7489] do_syscall_64+0xfa/0xfa0 [ 204.846146][ T7489] ? lockdep_hardirqs_on+0x9c/0x150 [ 204.846163][ T7489] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 204.846189][ T7489] ? clear_bhb_loop+0x60/0xb0 [ 204.846210][ T7489] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 204.846227][ T7489] RIP: 0033:0x7fbbdd5772da [ 204.846243][ T7489] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 204.846258][ T7489] RSP: 002b:00007fbbde38ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 204.846276][ T7489] RAX: ffffffffffffffda RBX: 00007fbbde38af00 RCX: 00007fbbdd5772da [ 204.846289][ T7489] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fbbde38aec0 [ 204.846301][ T7489] RBP: 00000000200124c0 R08: 00007fbbde38af00 R09: 0000000000000000 [ 204.846312][ T7489] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 204.846324][ T7489] R13: 00007fbbde38aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 204.846353][ T7489] [ 204.857786][ T7489] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.000111][ T7481] gfs2: fsid=syz:syz.0: found 1 quota changes [ 205.248138][ T7487] syz.4.133 (7487): drop_caches: 2 [ 205.279230][ T7489] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.359451][ T7485] syz.0.130 (7485): drop_caches: 2 [ 205.365271][ T7487] syz.4.133 (7487): drop_caches: 2 [ 205.372779][ T7485] syz.0.130 (7485): drop_caches: 2 [ 205.405453][ T7484] syz.2.131 (7484): drop_caches: 2 2025/09/25 08:30:30 executed programs: 129 [ 205.574838][ T7481] syz.1.129 (7481): drop_caches: 2 [ 205.584885][ T7481] syz.1.129 (7481): drop_caches: 2 [ 205.599907][ T7484] syz.2.131 (7484): drop_caches: 2 [ 206.530227][ T7506] loop0: detected capacity change from 0 to 32768 [ 206.566048][ T7506] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 206.654183][ T7506] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 206.710612][ T7506] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 206.739936][ T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 206.750389][ T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 206.816805][ T7509] loop4: detected capacity change from 0 to 32768 [ 206.900745][ T7509] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.940612][ T7509] CPU: 1 UID: 0 PID: 7509 Comm: syz.4.136 Not tainted syzkaller #0 PREEMPT(full) [ 206.940637][ T7509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 206.940647][ T7509] Call Trace: [ 206.940654][ T7509] [ 206.940662][ T7509] dump_stack_lvl+0x189/0x250 [ 206.940689][ T7509] ? __pfx_dump_stack_lvl+0x10/0x10 [ 206.940708][ T7509] ? __pfx__printk+0x10/0x10 [ 206.940735][ T7509] ? kernfs_path_from_node+0x250/0x290 [ 206.940749][ T7509] ? kernfs_path_from_node+0x2f/0x290 [ 206.940768][ T7509] sysfs_create_dir_ns+0x259/0x280 [ 206.940790][ T7509] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 206.940814][ T7509] ? do_raw_spin_unlock+0x122/0x240 [ 206.940847][ T7509] kobject_add_internal+0x59f/0xb40 [ 206.940873][ T7509] kobject_init_and_add+0x125/0x190 [ 206.940895][ T7509] ? __pfx_kobject_init_and_add+0x10/0x10 [ 206.940923][ T7509] ? __raw_spin_lock_init+0x45/0x100 [ 206.940944][ T7509] ? __init_swait_queue_head+0xa9/0x150 [ 206.940968][ T7509] gfs2_sys_fs_add+0x234/0x450 [ 206.940991][ T7509] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 206.941022][ T7509] ? is_dynamic_key+0xd6/0x1c0 [ 206.941043][ T7509] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 206.941076][ T7509] gfs2_fill_super+0x13c0/0x20d0 [ 206.941114][ T7509] ? __pfx_gfs2_fill_super+0x10/0x10 [ 206.941141][ T7509] ? sb_set_blocksize+0x104/0x180 [ 206.941163][ T7509] ? setup_bdev_super+0x4c1/0x5b0 [ 206.941185][ T7509] get_tree_bdev_flags+0x40e/0x4d0 [ 206.941211][ T7509] ? __pfx_gfs2_fill_super+0x10/0x10 [ 206.941234][ T7509] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 206.941250][ T7509] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 206.941289][ T7509] gfs2_get_tree+0x51/0x1e0 [ 206.941316][ T7509] vfs_get_tree+0x92/0x2b0 [ 206.941336][ T7509] do_new_mount+0x302/0x9e0 [ 206.941355][ T7509] ? apparmor_capable+0x137/0x1b0 [ 206.941382][ T7509] ? __pfx_do_new_mount+0x10/0x10 [ 206.941401][ T7509] ? ns_capable+0x8a/0xf0 [ 206.941427][ T7509] ? kmem_cache_free+0x19b/0x690 [ 206.941455][ T7509] __se_sys_mount+0x313/0x410 [ 206.941482][ T7509] ? __pfx___se_sys_mount+0x10/0x10 [ 206.941506][ T7509] ? do_syscall_64+0xbe/0xfa0 [ 206.941522][ T7509] ? __x64_sys_mount+0x20/0xc0 [ 206.941545][ T7509] do_syscall_64+0xfa/0xfa0 [ 206.941572][ T7509] ? lockdep_hardirqs_on+0x9c/0x150 [ 206.941591][ T7509] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 206.941608][ T7509] ? clear_bhb_loop+0x60/0xb0 [ 206.941628][ T7509] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 206.941649][ T7509] RIP: 0033:0x7f49a9b772da [ 206.941666][ T7509] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 206.941682][ T7509] RSP: 002b:00007f49aa984e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 206.941710][ T7509] RAX: ffffffffffffffda RBX: 00007f49aa984f00 RCX: 00007f49a9b772da [ 206.941727][ T7509] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f49aa984ec0 [ 206.941739][ T7509] RBP: 00000000200124c0 R08: 00007f49aa984f00 R09: 0000000000000000 [ 206.941752][ T7509] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 206.941764][ T7509] R13: 00007f49aa984ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 206.941795][ T7509] [ 206.941822][ T7509] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.948740][ T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 198ms [ 206.988985][ T7508] loop2: detected capacity change from 0 to 32768 [ 206.994136][ T9] gfs2: fsid=syz:syz.0: jid=0: Done [ 207.044275][ T7509] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.046119][ T7506] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 207.180666][ T7508] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.348671][ T7508] CPU: 1 UID: 0 PID: 7508 Comm: syz.2.137 Not tainted syzkaller #0 PREEMPT(full) [ 207.348696][ T7508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 207.348707][ T7508] Call Trace: [ 207.348715][ T7508] [ 207.348723][ T7508] dump_stack_lvl+0x189/0x250 [ 207.348751][ T7508] ? __pfx_dump_stack_lvl+0x10/0x10 [ 207.348770][ T7508] ? __pfx__printk+0x10/0x10 [ 207.348797][ T7508] ? kernfs_path_from_node+0x250/0x290 [ 207.348812][ T7508] ? kernfs_path_from_node+0x2f/0x290 [ 207.348830][ T7508] sysfs_create_dir_ns+0x259/0x280 [ 207.348854][ T7508] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 207.348878][ T7508] ? do_raw_spin_unlock+0x122/0x240 [ 207.348901][ T7508] kobject_add_internal+0x59f/0xb40 [ 207.348927][ T7508] kobject_init_and_add+0x125/0x190 [ 207.348964][ T7508] ? __pfx_kobject_init_and_add+0x10/0x10 [ 207.348984][ T7508] ? __raw_spin_lock_init+0x45/0x100 [ 207.349005][ T7508] ? __init_swait_queue_head+0xa9/0x150 [ 207.349028][ T7508] gfs2_sys_fs_add+0x234/0x450 [ 207.349054][ T7508] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 207.349077][ T7508] ? is_dynamic_key+0xd6/0x1c0 [ 207.349098][ T7508] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 207.349131][ T7508] gfs2_fill_super+0x13c0/0x20d0 [ 207.349171][ T7508] ? __pfx_gfs2_fill_super+0x10/0x10 [ 207.349198][ T7508] ? sb_set_blocksize+0x104/0x180 [ 207.349220][ T7508] ? setup_bdev_super+0x4c1/0x5b0 [ 207.349242][ T7508] get_tree_bdev_flags+0x40e/0x4d0 [ 207.349259][ T7508] ? __pfx_gfs2_fill_super+0x10/0x10 [ 207.349287][ T7508] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 207.349303][ T7508] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 207.349335][ T7508] gfs2_get_tree+0x51/0x1e0 [ 207.349362][ T7508] vfs_get_tree+0x92/0x2b0 [ 207.349383][ T7508] do_new_mount+0x302/0x9e0 [ 207.349402][ T7508] ? apparmor_capable+0x137/0x1b0 [ 207.349429][ T7508] ? __pfx_do_new_mount+0x10/0x10 [ 207.349448][ T7508] ? ns_capable+0x8a/0xf0 [ 207.349475][ T7508] ? kmem_cache_free+0x19b/0x690 [ 207.349505][ T7508] __se_sys_mount+0x313/0x410 [ 207.349531][ T7508] ? __pfx___se_sys_mount+0x10/0x10 [ 207.349555][ T7508] ? do_syscall_64+0xbe/0xfa0 [ 207.349572][ T7508] ? __x64_sys_mount+0x20/0xc0 [ 207.349593][ T7508] do_syscall_64+0xfa/0xfa0 [ 207.349610][ T7508] ? lockdep_hardirqs_on+0x9c/0x150 [ 207.349629][ T7508] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 207.349647][ T7508] ? clear_bhb_loop+0x60/0xb0 [ 207.349669][ T7508] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 207.349686][ T7508] RIP: 0033:0x7fe8263772da [ 207.349703][ T7508] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 207.349718][ T7508] RSP: 002b:00007fe8271a2e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 207.349738][ T7508] RAX: ffffffffffffffda RBX: 00007fe8271a2f00 RCX: 00007fe8263772da [ 207.349752][ T7508] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fe8271a2ec0 [ 207.349764][ T7508] RBP: 00000000200124c0 R08: 00007fe8271a2f00 R09: 0000000000000000 [ 207.349777][ T7508] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 207.349788][ T7508] R13: 00007fe8271a2ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 207.349819][ T7508] [ 207.676236][ T7508] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.694115][ T7508] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.716194][ T7506] gfs2: fsid=syz:syz.0: found 1 quota changes [ 207.757993][ T7508] syz.2.137 (7508): drop_caches: 2 [ 207.778934][ T7508] syz.2.137 (7508): drop_caches: 2 [ 207.786669][ T7509] syz.4.136 (7509): drop_caches: 2 [ 207.799679][ T7509] syz.4.136 (7509): drop_caches: 2 [ 207.848219][ T7506] syz.0.135 (7506): drop_caches: 2 [ 207.868196][ T7506] syz.0.135 (7506): drop_caches: 2 [ 207.905385][ T7511] loop3: detected capacity change from 0 to 32768 [ 207.938751][ T7511] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.946818][ T7511] CPU: 1 UID: 0 PID: 7511 Comm: syz.3.138 Not tainted syzkaller #0 PREEMPT(full) [ 207.946846][ T7511] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 207.946856][ T7511] Call Trace: [ 207.946865][ T7511] [ 207.946873][ T7511] dump_stack_lvl+0x189/0x250 [ 207.946901][ T7511] ? __pfx_dump_stack_lvl+0x10/0x10 [ 207.946920][ T7511] ? __pfx__printk+0x10/0x10 [ 207.946947][ T7511] ? kernfs_path_from_node+0x250/0x290 [ 207.946961][ T7511] ? kernfs_path_from_node+0x2f/0x290 [ 207.946978][ T7511] sysfs_create_dir_ns+0x259/0x280 [ 207.947004][ T7511] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 207.947030][ T7511] ? do_raw_spin_unlock+0x122/0x240 [ 207.947055][ T7511] kobject_add_internal+0x59f/0xb40 [ 207.947083][ T7511] kobject_init_and_add+0x125/0x190 [ 207.947109][ T7511] ? __pfx_kobject_init_and_add+0x10/0x10 [ 207.947130][ T7511] ? __raw_spin_lock_init+0x45/0x100 [ 207.947151][ T7511] ? __init_swait_queue_head+0xa9/0x150 [ 207.947181][ T7511] gfs2_sys_fs_add+0x234/0x450 [ 207.947204][ T7511] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 207.947231][ T7511] ? is_dynamic_key+0xd6/0x1c0 [ 207.947251][ T7511] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 207.947285][ T7511] gfs2_fill_super+0x13c0/0x20d0 [ 207.947324][ T7511] ? __pfx_gfs2_fill_super+0x10/0x10 [ 207.947351][ T7511] ? sb_set_blocksize+0x104/0x180 [ 207.947379][ T7511] ? setup_bdev_super+0x4c1/0x5b0 [ 207.947402][ T7511] get_tree_bdev_flags+0x40e/0x4d0 [ 207.947421][ T7511] ? __pfx_gfs2_fill_super+0x10/0x10 [ 207.947443][ T7511] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 207.947463][ T7511] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 207.947496][ T7511] gfs2_get_tree+0x51/0x1e0 [ 207.947521][ T7511] vfs_get_tree+0x92/0x2b0 [ 207.947542][ T7511] do_new_mount+0x302/0x9e0 [ 207.947562][ T7511] ? apparmor_capable+0x137/0x1b0 [ 207.947589][ T7511] ? __pfx_do_new_mount+0x10/0x10 [ 207.947609][ T7511] ? ns_capable+0x8a/0xf0 [ 207.947635][ T7511] ? kmem_cache_free+0x19b/0x690 [ 207.947665][ T7511] __se_sys_mount+0x313/0x410 [ 207.947691][ T7511] ? __pfx___se_sys_mount+0x10/0x10 [ 207.947715][ T7511] ? do_syscall_64+0xbe/0xfa0 [ 207.947732][ T7511] ? __x64_sys_mount+0x20/0xc0 [ 207.947755][ T7511] do_syscall_64+0xfa/0xfa0 [ 207.947772][ T7511] ? lockdep_hardirqs_on+0x9c/0x150 [ 207.947789][ T7511] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 207.947806][ T7511] ? clear_bhb_loop+0x60/0xb0 [ 207.947825][ T7511] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 207.947839][ T7511] RIP: 0033:0x7fbbdd5772da [ 207.947855][ T7511] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 207.947869][ T7511] RSP: 002b:00007fbbde38ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 207.947887][ T7511] RAX: ffffffffffffffda RBX: 00007fbbde38af00 RCX: 00007fbbdd5772da [ 207.947898][ T7511] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fbbde38aec0 [ 207.947909][ T7511] RBP: 00000000200124c0 R08: 00007fbbde38af00 R09: 0000000000000000 [ 207.947919][ T7511] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 207.947929][ T7511] R13: 00007fbbde38aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 207.947953][ T7511] [ 207.948039][ T7511] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.015873][ T7513] loop1: detected capacity change from 0 to 32768 [ 208.032131][ T7511] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.252152][ T7511] syz.3.138 (7511): drop_caches: 2 [ 208.333304][ T7513] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.342924][ T7513] CPU: 0 UID: 0 PID: 7513 Comm: syz.1.134 Not tainted syzkaller #0 PREEMPT(full) [ 208.342951][ T7513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 208.342962][ T7513] Call Trace: [ 208.342970][ T7513] [ 208.342979][ T7513] dump_stack_lvl+0x189/0x250 [ 208.343006][ T7513] ? __pfx_dump_stack_lvl+0x10/0x10 [ 208.343026][ T7513] ? __pfx__printk+0x10/0x10 [ 208.343054][ T7513] ? kernfs_path_from_node+0x250/0x290 [ 208.343069][ T7513] ? kernfs_path_from_node+0x2f/0x290 [ 208.343089][ T7513] sysfs_create_dir_ns+0x259/0x280 [ 208.343122][ T7513] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 208.343149][ T7513] ? do_raw_spin_unlock+0x122/0x240 [ 208.343173][ T7513] kobject_add_internal+0x59f/0xb40 [ 208.343201][ T7513] kobject_init_and_add+0x125/0x190 [ 208.343228][ T7513] ? __pfx_kobject_init_and_add+0x10/0x10 [ 208.343249][ T7513] ? __raw_spin_lock_init+0x45/0x100 [ 208.343271][ T7513] ? __init_swait_queue_head+0xa9/0x150 [ 208.343294][ T7513] gfs2_sys_fs_add+0x234/0x450 [ 208.343318][ T7513] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 208.343344][ T7513] ? is_dynamic_key+0xd6/0x1c0 [ 208.343366][ T7513] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 208.343400][ T7513] gfs2_fill_super+0x13c0/0x20d0 [ 208.343440][ T7513] ? __pfx_gfs2_fill_super+0x10/0x10 [ 208.343468][ T7513] ? sb_set_blocksize+0x104/0x180 [ 208.343490][ T7513] ? setup_bdev_super+0x4c1/0x5b0 [ 208.343512][ T7513] get_tree_bdev_flags+0x40e/0x4d0 [ 208.343532][ T7513] ? __pfx_gfs2_fill_super+0x10/0x10 [ 208.343555][ T7513] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 208.343572][ T7513] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 208.343603][ T7513] gfs2_get_tree+0x51/0x1e0 [ 208.343630][ T7513] vfs_get_tree+0x92/0x2b0 [ 208.343651][ T7513] do_new_mount+0x302/0x9e0 [ 208.343670][ T7513] ? apparmor_capable+0x137/0x1b0 [ 208.343697][ T7513] ? __pfx_do_new_mount+0x10/0x10 [ 208.343717][ T7513] ? ns_capable+0x8a/0xf0 [ 208.343744][ T7513] ? kmem_cache_free+0x19b/0x690 [ 208.343774][ T7513] __se_sys_mount+0x313/0x410 [ 208.343800][ T7513] ? __pfx___se_sys_mount+0x10/0x10 [ 208.343824][ T7513] ? do_syscall_64+0xbe/0xfa0 [ 208.343841][ T7513] ? __x64_sys_mount+0x20/0xc0 [ 208.343867][ T7513] do_syscall_64+0xfa/0xfa0 [ 208.343884][ T7513] ? lockdep_hardirqs_on+0x9c/0x150 [ 208.343903][ T7513] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 208.343921][ T7513] ? clear_bhb_loop+0x60/0xb0 [ 208.343942][ T7513] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 208.343960][ T7513] RIP: 0033:0x7f2579d772da [ 208.343976][ T7513] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 208.343991][ T7513] RSP: 002b:00007f257aa9be78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 208.344012][ T7513] RAX: ffffffffffffffda RBX: 00007f257aa9bf00 RCX: 00007f2579d772da [ 208.344025][ T7513] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f257aa9bec0 [ 208.344037][ T7513] RBP: 00000000200124c0 R08: 00007f257aa9bf00 R09: 0000000000000000 [ 208.344049][ T7513] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 208.344061][ T7513] R13: 00007f257aa9bec0 R14: 00000000000125b0 R15: 0000000020000480 [ 208.344091][ T7513] [ 208.344240][ T7513] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.382262][ T7511] syz.3.138 (7511): drop_caches: 2 [ 208.595170][ T7513] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.647544][ T7513] syz.1.134 (7513): drop_caches: 2 [ 208.782015][ T7513] syz.1.134 (7513): drop_caches: 2 [ 209.348350][ T7528] loop4: detected capacity change from 0 to 32768 [ 209.403729][ T7528] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 209.449125][ T7528] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 209.522991][ T7528] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 209.532695][ T938] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 209.541901][ T938] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 209.689784][ T938] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 147ms [ 209.697765][ T938] gfs2: fsid=syz:syz.0: jid=0: Done [ 209.723641][ T7528] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 209.827110][ T7529] loop2: detected capacity change from 0 to 32768 [ 209.856734][ T7529] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.870289][ T7529] CPU: 0 UID: 0 PID: 7529 Comm: syz.2.140 Not tainted syzkaller #0 PREEMPT(full) [ 209.870315][ T7529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 209.870327][ T7529] Call Trace: [ 209.870335][ T7529] [ 209.870344][ T7529] dump_stack_lvl+0x189/0x250 [ 209.870372][ T7529] ? __pfx_dump_stack_lvl+0x10/0x10 [ 209.870392][ T7529] ? __pfx__printk+0x10/0x10 [ 209.870419][ T7529] ? kernfs_path_from_node+0x250/0x290 [ 209.870435][ T7529] ? kernfs_path_from_node+0x2f/0x290 [ 209.870455][ T7529] sysfs_create_dir_ns+0x259/0x280 [ 209.870481][ T7529] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 209.870514][ T7529] ? do_raw_spin_unlock+0x122/0x240 [ 209.870544][ T7529] kobject_add_internal+0x59f/0xb40 [ 209.870578][ T7529] kobject_init_and_add+0x125/0x190 [ 209.870605][ T7529] ? __pfx_kobject_init_and_add+0x10/0x10 [ 209.870626][ T7529] ? __raw_spin_lock_init+0x45/0x100 [ 209.870647][ T7529] ? __init_swait_queue_head+0xa9/0x150 [ 209.870670][ T7529] gfs2_sys_fs_add+0x234/0x450 [ 209.870694][ T7529] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 209.870721][ T7529] ? is_dynamic_key+0xd6/0x1c0 [ 209.870741][ T7529] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 209.870776][ T7529] gfs2_fill_super+0x13c0/0x20d0 [ 209.870815][ T7529] ? __pfx_gfs2_fill_super+0x10/0x10 [ 209.870844][ T7529] ? sb_set_blocksize+0x104/0x180 [ 209.870866][ T7529] ? setup_bdev_super+0x4c1/0x5b0 [ 209.870889][ T7529] get_tree_bdev_flags+0x40e/0x4d0 [ 209.870908][ T7529] ? __pfx_gfs2_fill_super+0x10/0x10 [ 209.870931][ T7529] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 209.870948][ T7529] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 209.870981][ T7529] gfs2_get_tree+0x51/0x1e0 [ 209.871007][ T7529] vfs_get_tree+0x92/0x2b0 [ 209.871028][ T7529] do_new_mount+0x302/0x9e0 [ 209.871046][ T7529] ? apparmor_capable+0x137/0x1b0 [ 209.871083][ T7529] ? __pfx_do_new_mount+0x10/0x10 [ 209.871103][ T7529] ? ns_capable+0x8a/0xf0 [ 209.871129][ T7529] ? kmem_cache_free+0x19b/0x690 [ 209.871159][ T7529] __se_sys_mount+0x313/0x410 [ 209.871186][ T7529] ? __pfx___se_sys_mount+0x10/0x10 [ 209.871210][ T7529] ? do_syscall_64+0xbe/0xfa0 [ 209.871227][ T7529] ? __x64_sys_mount+0x20/0xc0 [ 209.871249][ T7529] do_syscall_64+0xfa/0xfa0 [ 209.871266][ T7529] ? lockdep_hardirqs_on+0x9c/0x150 [ 209.871284][ T7529] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 209.871302][ T7529] ? clear_bhb_loop+0x60/0xb0 [ 209.871324][ T7529] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 209.871341][ T7529] RIP: 0033:0x7fe8263772da [ 209.871358][ T7529] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 209.871374][ T7529] RSP: 002b:00007fe8271a2e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 209.871393][ T7529] RAX: ffffffffffffffda RBX: 00007fe8271a2f00 RCX: 00007fe8263772da [ 209.871407][ T7529] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fe8271a2ec0 [ 209.871420][ T7529] RBP: 00000000200124c0 R08: 00007fe8271a2f00 R09: 0000000000000000 [ 209.871432][ T7529] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 209.871444][ T7529] R13: 00007fe8271a2ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 209.871475][ T7529] [ 209.871502][ T7529] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.092791][ T7528] gfs2: fsid=syz:syz.0: found 1 quota changes [ 210.113891][ T7529] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.250938][ T7528] syz.4.139 (7528): drop_caches: 2 [ 210.310962][ T7528] syz.4.139 (7528): drop_caches: 2 [ 210.490075][ T7536] loop3: detected capacity change from 0 to 32768 [ 210.562502][ T7536] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.576944][ T7537] loop1: detected capacity change from 0 to 32768 [ 210.615226][ T7536] CPU: 0 UID: 0 PID: 7536 Comm: syz.3.142 Not tainted syzkaller #0 PREEMPT(full) [ 210.615252][ T7536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 210.615261][ T7536] Call Trace: [ 210.615269][ T7536] [ 210.615277][ T7536] dump_stack_lvl+0x189/0x250 [ 210.615305][ T7536] ? __pfx_dump_stack_lvl+0x10/0x10 [ 210.615323][ T7536] ? __pfx__printk+0x10/0x10 [ 210.615347][ T7536] ? kernfs_path_from_node+0x250/0x290 [ 210.615361][ T7536] ? kernfs_path_from_node+0x2f/0x290 [ 210.615380][ T7536] sysfs_create_dir_ns+0x259/0x280 [ 210.615407][ T7536] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 210.615432][ T7536] ? do_raw_spin_unlock+0x122/0x240 [ 210.615455][ T7536] kobject_add_internal+0x59f/0xb40 [ 210.615483][ T7536] kobject_init_and_add+0x125/0x190 [ 210.615508][ T7536] ? __pfx_kobject_init_and_add+0x10/0x10 [ 210.615527][ T7536] ? __raw_spin_lock_init+0x45/0x100 [ 210.615547][ T7536] ? __init_swait_queue_head+0xa9/0x150 [ 210.615569][ T7536] gfs2_sys_fs_add+0x234/0x450 [ 210.615590][ T7536] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 210.615614][ T7536] ? is_dynamic_key+0xd6/0x1c0 [ 210.615634][ T7536] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 210.615667][ T7536] gfs2_fill_super+0x13c0/0x20d0 [ 210.615707][ T7536] ? __pfx_gfs2_fill_super+0x10/0x10 [ 210.615744][ T7536] ? sb_set_blocksize+0x104/0x180 [ 210.615767][ T7536] ? setup_bdev_super+0x4c1/0x5b0 [ 210.615790][ T7536] get_tree_bdev_flags+0x40e/0x4d0 [ 210.615809][ T7536] ? __pfx_gfs2_fill_super+0x10/0x10 [ 210.615832][ T7536] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 210.615849][ T7536] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 210.615881][ T7536] gfs2_get_tree+0x51/0x1e0 [ 210.615908][ T7536] vfs_get_tree+0x92/0x2b0 [ 210.615930][ T7536] do_new_mount+0x302/0x9e0 [ 210.615948][ T7536] ? apparmor_capable+0x137/0x1b0 [ 210.615974][ T7536] ? __pfx_do_new_mount+0x10/0x10 [ 210.615994][ T7536] ? ns_capable+0x8a/0xf0 [ 210.616021][ T7536] ? kmem_cache_free+0x19b/0x690 [ 210.616051][ T7536] __se_sys_mount+0x313/0x410 [ 210.616078][ T7536] ? __pfx___se_sys_mount+0x10/0x10 [ 210.616102][ T7536] ? do_syscall_64+0xbe/0xfa0 [ 210.616119][ T7536] ? __x64_sys_mount+0x20/0xc0 [ 210.616141][ T7536] do_syscall_64+0xfa/0xfa0 [ 210.616158][ T7536] ? lockdep_hardirqs_on+0x9c/0x150 [ 210.616177][ T7536] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.616194][ T7536] ? clear_bhb_loop+0x60/0xb0 [ 210.616216][ T7536] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.616232][ T7536] RIP: 0033:0x7fbbdd5772da [ 210.616249][ T7536] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 210.616265][ T7536] RSP: 002b:00007fbbde38ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 210.616285][ T7536] RAX: ffffffffffffffda RBX: 00007fbbde38af00 RCX: 00007fbbdd5772da [ 210.616299][ T7536] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fbbde38aec0 [ 210.616312][ T7536] RBP: 00000000200124c0 R08: 00007fbbde38af00 R09: 0000000000000000 [ 210.616324][ T7536] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 210.616336][ T7536] R13: 00007fbbde38aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 210.616367][ T7536] [ 210.616394][ T7536] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.973552][ T7536] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.988454][ T7529] syz.2.140 (7529): drop_caches: 2 [ 211.020090][ T7536] syz.3.142 (7536): drop_caches: 2 [ 211.037601][ T7537] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 211.060436][ T7536] syz.3.142 (7536): drop_caches: 2 [ 211.067973][ T7529] syz.2.140 (7529): drop_caches: 2 [ 211.077516][ T7539] loop0: detected capacity change from 0 to 32768 [ 211.087850][ T7537] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... 2025/09/25 08:30:35 executed programs: 140 [ 211.190712][ T7537] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 211.211378][ T7539] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.218961][ T7539] CPU: 1 UID: 0 PID: 7539 Comm: syz.0.141 Not tainted syzkaller #0 PREEMPT(full) [ 211.218985][ T7539] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 211.218996][ T7539] Call Trace: [ 211.219005][ T7539] [ 211.219013][ T7539] dump_stack_lvl+0x189/0x250 [ 211.219042][ T7539] ? __pfx_dump_stack_lvl+0x10/0x10 [ 211.219059][ T7539] ? __pfx__printk+0x10/0x10 [ 211.219083][ T7539] ? kernfs_path_from_node+0x250/0x290 [ 211.219097][ T7539] ? kernfs_path_from_node+0x2f/0x290 [ 211.219114][ T7539] sysfs_create_dir_ns+0x259/0x280 [ 211.219139][ T7539] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 211.219163][ T7539] ? do_raw_spin_unlock+0x122/0x240 [ 211.219188][ T7539] kobject_add_internal+0x59f/0xb40 [ 211.219216][ T7539] kobject_init_and_add+0x125/0x190 [ 211.219243][ T7539] ? __pfx_kobject_init_and_add+0x10/0x10 [ 211.219263][ T7539] ? __raw_spin_lock_init+0x45/0x100 [ 211.219282][ T7539] ? __init_swait_queue_head+0xa9/0x150 [ 211.219305][ T7539] gfs2_sys_fs_add+0x234/0x450 [ 211.219327][ T7539] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 211.219353][ T7539] ? is_dynamic_key+0xd6/0x1c0 [ 211.219374][ T7539] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 211.219409][ T7539] gfs2_fill_super+0x13c0/0x20d0 [ 211.219448][ T7539] ? __pfx_gfs2_fill_super+0x10/0x10 [ 211.219477][ T7539] ? sb_set_blocksize+0x104/0x180 [ 211.219501][ T7539] ? setup_bdev_super+0x4c1/0x5b0 [ 211.219523][ T7539] get_tree_bdev_flags+0x40e/0x4d0 [ 211.219542][ T7539] ? __pfx_gfs2_fill_super+0x10/0x10 [ 211.219564][ T7539] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 211.219581][ T7539] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 211.219612][ T7539] gfs2_get_tree+0x51/0x1e0 [ 211.219638][ T7539] vfs_get_tree+0x92/0x2b0 [ 211.219660][ T7539] do_new_mount+0x302/0x9e0 [ 211.219678][ T7539] ? apparmor_capable+0x137/0x1b0 [ 211.219705][ T7539] ? __pfx_do_new_mount+0x10/0x10 [ 211.219733][ T7539] ? ns_capable+0x8a/0xf0 [ 211.219759][ T7539] ? kmem_cache_free+0x19b/0x690 [ 211.219788][ T7539] __se_sys_mount+0x313/0x410 [ 211.219814][ T7539] ? __pfx___se_sys_mount+0x10/0x10 [ 211.219838][ T7539] ? do_syscall_64+0xbe/0xfa0 [ 211.219855][ T7539] ? __x64_sys_mount+0x20/0xc0 [ 211.219877][ T7539] do_syscall_64+0xfa/0xfa0 [ 211.219893][ T7539] ? lockdep_hardirqs_on+0x9c/0x150 [ 211.219911][ T7539] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 211.219929][ T7539] ? clear_bhb_loop+0x60/0xb0 [ 211.219949][ T7539] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 211.219966][ T7539] RIP: 0033:0x7f7d585772da [ 211.219982][ T7539] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 211.219998][ T7539] RSP: 002b:00007f7d5934ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 211.220018][ T7539] RAX: ffffffffffffffda RBX: 00007f7d5934af00 RCX: 00007f7d585772da [ 211.220031][ T7539] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f7d5934aec0 [ 211.220043][ T7539] RBP: 00000000200124c0 R08: 00007f7d5934af00 R09: 0000000000000000 [ 211.220055][ T7539] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 211.220072][ T7539] R13: 00007f7d5934aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 211.220102][ T7539] [ 211.599329][ T7539] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.629462][ T7539] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.769233][ T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 211.776302][ T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 211.889751][ T7552] loop4: detected capacity change from 0 to 32768 [ 211.921189][ T7552] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.928600][ T7552] CPU: 1 UID: 0 PID: 7552 Comm: syz.4.144 Not tainted syzkaller #0 PREEMPT(full) [ 211.928624][ T7552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 211.928635][ T7552] Call Trace: [ 211.928643][ T7552] [ 211.928652][ T7552] dump_stack_lvl+0x189/0x250 [ 211.928687][ T7552] ? __pfx_dump_stack_lvl+0x10/0x10 [ 211.928707][ T7552] ? __pfx__printk+0x10/0x10 [ 211.928734][ T7552] ? kernfs_path_from_node+0x250/0x290 [ 211.928750][ T7552] ? kernfs_path_from_node+0x2f/0x290 [ 211.928770][ T7552] sysfs_create_dir_ns+0x259/0x280 [ 211.928795][ T7552] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 211.928819][ T7552] ? do_raw_spin_unlock+0x122/0x240 [ 211.928844][ T7552] kobject_add_internal+0x59f/0xb40 [ 211.928872][ T7552] kobject_init_and_add+0x125/0x190 [ 211.928897][ T7552] ? __pfx_kobject_init_and_add+0x10/0x10 [ 211.928918][ T7552] ? __raw_spin_lock_init+0x45/0x100 [ 211.928938][ T7552] ? __init_swait_queue_head+0xa9/0x150 [ 211.928961][ T7552] gfs2_sys_fs_add+0x234/0x450 [ 211.928985][ T7552] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 211.929012][ T7552] ? is_dynamic_key+0xd6/0x1c0 [ 211.929033][ T7552] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 211.929066][ T7552] gfs2_fill_super+0x13c0/0x20d0 [ 211.929105][ T7552] ? __pfx_gfs2_fill_super+0x10/0x10 [ 211.929132][ T7552] ? sb_set_blocksize+0x104/0x180 [ 211.929154][ T7552] ? setup_bdev_super+0x4c1/0x5b0 [ 211.929174][ T7552] get_tree_bdev_flags+0x40e/0x4d0 [ 211.929192][ T7552] ? __pfx_gfs2_fill_super+0x10/0x10 [ 211.929213][ T7552] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 211.929228][ T7552] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 211.929259][ T7552] gfs2_get_tree+0x51/0x1e0 [ 211.929291][ T7552] vfs_get_tree+0x92/0x2b0 [ 211.929311][ T7552] do_new_mount+0x302/0x9e0 [ 211.929330][ T7552] ? apparmor_capable+0x137/0x1b0 [ 211.929357][ T7552] ? __pfx_do_new_mount+0x10/0x10 [ 211.929376][ T7552] ? ns_capable+0x8a/0xf0 [ 211.929402][ T7552] ? kmem_cache_free+0x19b/0x690 [ 211.929433][ T7552] __se_sys_mount+0x313/0x410 [ 211.929457][ T7552] ? __pfx___se_sys_mount+0x10/0x10 [ 211.929480][ T7552] ? do_syscall_64+0xbe/0xfa0 [ 211.929497][ T7552] ? __x64_sys_mount+0x20/0xc0 [ 211.929519][ T7552] do_syscall_64+0xfa/0xfa0 [ 211.929537][ T7552] ? lockdep_hardirqs_on+0x9c/0x150 [ 211.929555][ T7552] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 211.929573][ T7552] ? clear_bhb_loop+0x60/0xb0 [ 211.929593][ T7552] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 211.929611][ T7552] RIP: 0033:0x7f49a9b772da [ 211.929628][ T7552] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 211.929643][ T7552] RSP: 002b:00007f49aa984e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 211.929662][ T7552] RAX: ffffffffffffffda RBX: 00007f49aa984f00 RCX: 00007f49a9b772da [ 211.929684][ T7552] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f49aa984ec0 [ 211.929695][ T7552] RBP: 00000000200124c0 R08: 00007f49aa984f00 R09: 0000000000000000 [ 211.929705][ T7552] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 211.929717][ T7552] R13: 00007f49aa984ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 211.929745][ T7552] [ 212.304977][ T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 528ms [ 212.319320][ T9] gfs2: fsid=syz:syz.0: jid=0: Done [ 212.326729][ T7552] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.349449][ T7537] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 212.393887][ T7552] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.434999][ T7552] syz.4.144 (7552): drop_caches: 2 [ 212.465188][ T7552] syz.4.144 (7552): drop_caches: 2 [ 212.502029][ T7537] gfs2: fsid=syz:syz.0: can't create logd thread: -4 [ 212.605768][ T7559] loop2: detected capacity change from 0 to 32768 [ 212.646319][ T7559] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.701657][ T7559] CPU: 1 UID: 0 PID: 7559 Comm: syz.2.145 Not tainted syzkaller #0 PREEMPT(full) [ 212.701684][ T7559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 212.701695][ T7559] Call Trace: [ 212.701704][ T7559] [ 212.701713][ T7559] dump_stack_lvl+0x189/0x250 [ 212.701740][ T7559] ? __pfx_dump_stack_lvl+0x10/0x10 [ 212.701759][ T7559] ? __pfx__printk+0x10/0x10 [ 212.701787][ T7559] ? kernfs_path_from_node+0x250/0x290 [ 212.701803][ T7559] ? kernfs_path_from_node+0x2f/0x290 [ 212.701822][ T7559] sysfs_create_dir_ns+0x259/0x280 [ 212.701848][ T7559] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 212.701873][ T7559] ? do_raw_spin_unlock+0x122/0x240 [ 212.701898][ T7559] kobject_add_internal+0x59f/0xb40 [ 212.701926][ T7559] kobject_init_and_add+0x125/0x190 [ 212.701952][ T7559] ? __pfx_kobject_init_and_add+0x10/0x10 [ 212.701973][ T7559] ? __raw_spin_lock_init+0x45/0x100 [ 212.701994][ T7559] ? __init_swait_queue_head+0xa9/0x150 [ 212.702017][ T7559] gfs2_sys_fs_add+0x234/0x450 [ 212.702042][ T7559] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 212.702067][ T7559] ? is_dynamic_key+0xd6/0x1c0 [ 212.702088][ T7559] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 212.702121][ T7559] gfs2_fill_super+0x13c0/0x20d0 [ 212.702162][ T7559] ? __pfx_gfs2_fill_super+0x10/0x10 [ 212.702189][ T7559] ? sb_set_blocksize+0x104/0x180 [ 212.702211][ T7559] ? setup_bdev_super+0x4c1/0x5b0 [ 212.702234][ T7559] get_tree_bdev_flags+0x40e/0x4d0 [ 212.702253][ T7559] ? __pfx_gfs2_fill_super+0x10/0x10 [ 212.702276][ T7559] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 212.702292][ T7559] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 212.702325][ T7559] gfs2_get_tree+0x51/0x1e0 [ 212.702351][ T7559] vfs_get_tree+0x92/0x2b0 [ 212.702373][ T7559] do_new_mount+0x302/0x9e0 [ 212.702392][ T7559] ? apparmor_capable+0x137/0x1b0 [ 212.702419][ T7559] ? __pfx_do_new_mount+0x10/0x10 [ 212.702439][ T7559] ? ns_capable+0x8a/0xf0 [ 212.702465][ T7559] ? kmem_cache_free+0x19b/0x690 [ 212.702494][ T7559] __se_sys_mount+0x313/0x410 [ 212.702522][ T7559] ? __pfx___se_sys_mount+0x10/0x10 [ 212.702546][ T7559] ? do_syscall_64+0xbe/0xfa0 [ 212.702756][ T7559] ? __x64_sys_mount+0x20/0xc0 [ 212.702779][ T7559] do_syscall_64+0xfa/0xfa0 [ 212.702796][ T7559] ? lockdep_hardirqs_on+0x9c/0x150 [ 212.702892][ T7559] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 212.702918][ T7559] ? clear_bhb_loop+0x60/0xb0 [ 212.702938][ T7559] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 212.702956][ T7559] RIP: 0033:0x7fe8263772da [ 212.702974][ T7559] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 212.702989][ T7559] RSP: 002b:00007fe8271a2e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 212.703009][ T7559] RAX: ffffffffffffffda RBX: 00007fe8271a2f00 RCX: 00007fe8263772da [ 212.703021][ T7559] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fe8271a2ec0 [ 212.703032][ T7559] RBP: 00000000200124c0 R08: 00007fe8271a2f00 R09: 0000000000000000 [ 212.703045][ T7559] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 212.703057][ T7559] R13: 00007fe8271a2ec0 R14: 00000000000125b0 R15: 0000000020000480 [ 212.703088][ T7559] [ 212.709363][ T7559] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.102047][ T7559] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.603580][ T7559] syz.2.145 (7559): drop_caches: 2 [ 213.636185][ T7559] syz.2.145 (7559): drop_caches: 2 [ 213.644253][ T7567] loop4: detected capacity change from 0 to 32768 [ 213.693411][ T7567] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 213.719309][ T7567] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 213.784777][ T7567] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 213.800900][ T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 213.808368][ T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 213.968006][ T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 159ms [ 213.999376][ T9] gfs2: fsid=syz:syz.0: jid=0: Done [ 214.009294][ T7567] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 214.131867][ T7558] loop3: detected capacity change from 0 to 32768 [ 214.138907][ T7567] gfs2: fsid=syz:syz.0: found 1 quota changes [ 214.181169][ T7567] syz.4.147 (7567): drop_caches: 2 [ 214.190692][ T7558] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.213333][ T7567] syz.4.147 (7567): drop_caches: 2 [ 214.219196][ T7558] CPU: 1 UID: 0 PID: 7558 Comm: syz.3.146 Not tainted syzkaller #0 PREEMPT(full) [ 214.219220][ T7558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 214.219231][ T7558] Call Trace: [ 214.219238][ T7558] [ 214.219246][ T7558] dump_stack_lvl+0x189/0x250 [ 214.219280][ T7558] ? __pfx_dump_stack_lvl+0x10/0x10 [ 214.219298][ T7558] ? __pfx__printk+0x10/0x10 [ 214.219324][ T7558] ? kernfs_path_from_node+0x250/0x290 [ 214.219340][ T7558] ? kernfs_path_from_node+0x2f/0x290 [ 214.219360][ T7558] sysfs_create_dir_ns+0x259/0x280 [ 214.219387][ T7558] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 214.219413][ T7558] ? do_raw_spin_unlock+0x122/0x240 [ 214.219437][ T7558] kobject_add_internal+0x59f/0xb40 [ 214.219473][ T7558] kobject_init_and_add+0x125/0x190 [ 214.219496][ T7558] ? __pfx_kobject_init_and_add+0x10/0x10 [ 214.219515][ T7558] ? __raw_spin_lock_init+0x45/0x100 [ 214.219536][ T7558] ? __init_swait_queue_head+0xa9/0x150 [ 214.219558][ T7558] gfs2_sys_fs_add+0x234/0x450 [ 214.219582][ T7558] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 214.219608][ T7558] ? is_dynamic_key+0xd6/0x1c0 [ 214.219628][ T7558] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 214.219661][ T7558] gfs2_fill_super+0x13c0/0x20d0 [ 214.219700][ T7558] ? __pfx_gfs2_fill_super+0x10/0x10 [ 214.219727][ T7558] ? sb_set_blocksize+0x104/0x180 [ 214.219750][ T7558] ? setup_bdev_super+0x4c1/0x5b0 [ 214.219772][ T7558] get_tree_bdev_flags+0x40e/0x4d0 [ 214.219792][ T7558] ? __pfx_gfs2_fill_super+0x10/0x10 [ 214.219823][ T7558] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 214.219840][ T7558] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 214.219871][ T7558] gfs2_get_tree+0x51/0x1e0 [ 214.219897][ T7558] vfs_get_tree+0x92/0x2b0 [ 214.219916][ T7558] do_new_mount+0x302/0x9e0 [ 214.219933][ T7558] ? apparmor_capable+0x137/0x1b0 [ 214.219959][ T7558] ? __pfx_do_new_mount+0x10/0x10 [ 214.219979][ T7558] ? ns_capable+0x8a/0xf0 [ 214.220004][ T7558] ? kmem_cache_free+0x19b/0x690 [ 214.220035][ T7558] __se_sys_mount+0x313/0x410 [ 214.220059][ T7558] ? __pfx___se_sys_mount+0x10/0x10 [ 214.220081][ T7558] ? do_syscall_64+0xbe/0xfa0 [ 214.220097][ T7558] ? __x64_sys_mount+0x20/0xc0 [ 214.220120][ T7558] do_syscall_64+0xfa/0xfa0 [ 214.220136][ T7558] ? lockdep_hardirqs_on+0x9c/0x150 [ 214.220156][ T7558] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 214.220172][ T7558] ? clear_bhb_loop+0x60/0xb0 [ 214.220194][ T7558] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 214.220211][ T7558] RIP: 0033:0x7fbbdd5772da [ 214.220228][ T7558] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 214.220243][ T7558] RSP: 002b:00007fbbde38ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 214.220263][ T7558] RAX: ffffffffffffffda RBX: 00007fbbde38af00 RCX: 00007fbbdd5772da [ 214.220276][ T7558] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007fbbde38aec0 [ 214.220288][ T7558] RBP: 00000000200124c0 R08: 00007fbbde38af00 R09: 0000000000000000 [ 214.220300][ T7558] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 214.220311][ T7558] R13: 00007fbbde38aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 214.220338][ T7558] [ 214.220365][ T7558] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.228466][ T7569] loop0: detected capacity change from 0 to 32768 [ 214.231643][ T7558] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.358838][ T7569] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.607212][ T7558] syz.3.146 (7558): drop_caches: 2 [ 214.619212][ T7569] CPU: 1 UID: 0 PID: 7569 Comm: syz.0.148 Not tainted syzkaller #0 PREEMPT(full) [ 214.619237][ T7569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 214.619247][ T7569] Call Trace: [ 214.619254][ T7569] [ 214.619261][ T7569] dump_stack_lvl+0x189/0x250 [ 214.619287][ T7569] ? __pfx_dump_stack_lvl+0x10/0x10 [ 214.619305][ T7569] ? __pfx__printk+0x10/0x10 [ 214.619331][ T7569] ? kernfs_path_from_node+0x250/0x290 [ 214.619346][ T7569] ? kernfs_path_from_node+0x2f/0x290 [ 214.619366][ T7569] sysfs_create_dir_ns+0x259/0x280 [ 214.619392][ T7569] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 214.619428][ T7569] ? do_raw_spin_unlock+0x122/0x240 [ 214.619453][ T7569] kobject_add_internal+0x59f/0xb40 [ 214.619481][ T7569] kobject_init_and_add+0x125/0x190 [ 214.619507][ T7569] ? __pfx_kobject_init_and_add+0x10/0x10 [ 214.619529][ T7569] ? __raw_spin_lock_init+0x45/0x100 [ 214.619550][ T7569] ? __init_swait_queue_head+0xa9/0x150 [ 214.619573][ T7569] gfs2_sys_fs_add+0x234/0x450 [ 214.619597][ T7569] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 214.619623][ T7569] ? is_dynamic_key+0xd6/0x1c0 [ 214.619644][ T7569] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 214.619677][ T7569] gfs2_fill_super+0x13c0/0x20d0 [ 214.619716][ T7569] ? __pfx_gfs2_fill_super+0x10/0x10 [ 214.619744][ T7569] ? sb_set_blocksize+0x104/0x180 [ 214.619768][ T7569] ? setup_bdev_super+0x4c1/0x5b0 [ 214.619790][ T7569] get_tree_bdev_flags+0x40e/0x4d0 [ 214.619809][ T7569] ? __pfx_gfs2_fill_super+0x10/0x10 [ 214.619832][ T7569] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 214.619849][ T7569] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 214.619880][ T7569] gfs2_get_tree+0x51/0x1e0 [ 214.619907][ T7569] vfs_get_tree+0x92/0x2b0 [ 214.619929][ T7569] do_new_mount+0x302/0x9e0 [ 214.619947][ T7569] ? apparmor_capable+0x137/0x1b0 [ 214.619974][ T7569] ? __pfx_do_new_mount+0x10/0x10 [ 214.619995][ T7569] ? ns_capable+0x8a/0xf0 [ 214.620021][ T7569] ? kmem_cache_free+0x19b/0x690 [ 214.620051][ T7569] __se_sys_mount+0x313/0x410 [ 214.620078][ T7569] ? __pfx___se_sys_mount+0x10/0x10 [ 214.620102][ T7569] ? do_syscall_64+0xbe/0xfa0 [ 214.620119][ T7569] ? __x64_sys_mount+0x20/0xc0 [ 214.620142][ T7569] do_syscall_64+0xfa/0xfa0 [ 214.620158][ T7569] ? lockdep_hardirqs_on+0x9c/0x150 [ 214.620177][ T7569] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 214.620195][ T7569] ? clear_bhb_loop+0x60/0xb0 [ 214.620215][ T7569] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 214.620233][ T7569] RIP: 0033:0x7f7d585772da [ 214.620249][ T7569] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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 [ 214.620264][ T7569] RSP: 002b:00007f7d5934ae78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 214.620283][ T7569] RAX: ffffffffffffffda RBX: 00007f7d5934af00 RCX: 00007f7d585772da [ 214.620296][ T7569] RDX: 00000000200124c0 RSI: 0000000020000180 RDI: 00007f7d5934aec0 [ 214.620308][ T7569] RBP: 00000000200124c0 R08: 00007f7d5934af00 R09: 0000000000000000 [ 214.620320][ T7569] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000180 [ 214.620331][ T7569] R13: 00007f7d5934aec0 R14: 00000000000125b0 R15: 0000000020000480 [ 214.620361][ T7569] [ 214.620389][ T7569] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.658711][ T7558] gfs2: fsid=syz:syz.0: warning: assertion "!qd->qd_slot_ref" failed - function = gfs2_qd_dispose, file = fs/gfs2/quota.c, line = 130 [ 214.711707][ T6375] ------------[ cut here ]------------ [ 214.717294][ T7558] CPU: 0 UID: 0 PID: 7558 Comm: syz.3.146 Not tainted syzkaller #0 PREEMPT(full) [ 214.717319][ T7558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 214.717331][ T7558] Call Trace: [ 214.717339][ T7558] [ 214.717347][ T7558] dump_stack_lvl+0x189/0x250 [ 214.717375][ T7558] ? __pfx_dump_stack_lvl+0x10/0x10 [ 214.717394][ T7558] ? __pfx__printk+0x10/0x10 [ 214.717419][ T7558] ? do_raw_spin_unlock+0x122/0x240 [ 214.717443][ T7558] gfs2_assert_warn_i+0x194/0x2c0 [ 214.717473][ T7558] gfs2_qd_dispose+0x4d8/0x5b0 [ 214.717497][ T7558] gfs2_qd_shrink_scan+0x281/0x330 [ 214.717520][ T7558] ? __pfx_gfs2_qd_shrink_scan+0x10/0x10 [ 214.717537][ T7558] ? list_lru_count_one+0x27/0x2c0 [ 214.717568][ T7558] do_shrink_slab+0x6ef/0x1110 [ 214.717602][ T7558] ? shrink_slab+0x129/0x10d0 [ 214.717624][ T7558] shrink_slab+0xd74/0x10d0 [ 214.717645][ T7558] ? shrink_slab+0x129/0x10d0 [ 214.717681][ T7558] ? __pfx_shrink_slab+0x10/0x10 [ 214.717705][ T7558] ? mem_cgroup_iter+0x3b/0x460 [ 214.717733][ T7558] ? mem_cgroup_iter+0x3e7/0x460 [ 214.717756][ T7558] ? mem_cgroup_iter+0x3b/0x460 [ 214.717781][ T7558] drop_slab+0x14e/0x290 [ 214.717808][ T7558] drop_caches_sysctl_handler+0xc7/0x170 [ 214.717833][ T7558] proc_sys_call_handler+0x4cb/0x700 [ 214.717859][ T7558] ? __pfx_proc_sys_call_handler+0x10/0x10 [ 214.717879][ T7558] ? __asan_memset+0x22/0x50 [ 214.717902][ T7558] iter_file_splice_write+0x975/0x10e0 [ 214.717947][ T7558] ? __pfx_iter_file_splice_write+0x10/0x10 [ 214.717970][ T7558] ? rcu_read_lock_any_held+0xb3/0x120 [ 214.718000][ T7558] ? __pfx_iter_file_splice_write+0x10/0x10 [ 214.718021][ T7558] direct_splice_actor+0x101/0x160 [ 214.718045][ T7558] splice_direct_to_actor+0x5a8/0xcc0 [ 214.718083][ T7558] ? __pfx_direct_splice_actor+0x10/0x10 [ 214.718102][ T7558] ? __pfx_splice_direct_to_actor+0x10/0x10 [ 214.718131][ T7558] do_splice_direct+0x181/0x270 [ 214.718153][ T7558] ? __pfx_do_splice_direct+0x10/0x10 [ 214.718172][ T7558] ? __pfx_direct_file_splice_eof+0x10/0x10 [ 214.718199][ T7558] ? rw_verify_area+0x255/0x4d0 [ 214.718221][ T7558] do_sendfile+0x4da/0x7e0 [ 214.718250][ T7558] ? __pfx_do_sendfile+0x10/0x10 [ 214.718282][ T7558] __se_sys_sendfile64+0xd9/0x190 [ 214.718302][ T7558] ? __pfx___se_sys_futex+0x10/0x10 [ 214.718327][ T7558] ? __pfx___se_sys_sendfile64+0x10/0x10 [ 214.718351][ T7558] ? do_syscall_64+0xbe/0xfa0 [ 214.718372][ T7558] do_syscall_64+0xfa/0xfa0 [ 214.718403][ T7558] ? lockdep_hardirqs_on+0x9c/0x150 [ 214.718422][ T7558] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 214.718439][ T7558] ? clear_bhb_loop+0x60/0xb0 [ 214.718459][ T7558] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 214.718476][ T7558] RIP: 0033:0x7fbbdd575bd9 [ 214.718492][ T7558] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 214.718507][ T7558] RSP: 002b:00007fbbde38b048 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 214.718526][ T7558] RAX: ffffffffffffffda RBX: 00007fbbdd703f60 RCX: 00007fbbdd575bd9 [ 214.718539][ T7558] RDX: 0000000020002080 RSI: 0000000000000004 RDI: 0000000000000005 [ 214.718551][ T7558] RBP: 00007fbbdd5e4e60 R08: 0000000000000000 R09: 0000000000000000 [ 214.718561][ T7558] R10: 000000000000023b R11: 0000000000000246 R12: 0000000000000000 [ 214.718572][ T7558] R13: 000000000000000b R14: 00007fbbdd703f60 R15: 00007ffc9e394228 [ 214.718600][ T7558] [ 214.722343][ T7558] syz.3.146 (7558): drop_caches: 2 [ 214.726977][ T6375] kernel BUG at fs/gfs2/quota.c:331! [ 214.739228][ T7569] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.155543][ T7571] loop1: detected capacity change from 0 to 32768 [ 215.158005][ T6375] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 215.169912][ T7571] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.169967][ T6375] CPU: 1 UID: 0 PID: 6375 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) [ 215.398094][ T6375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 215.408332][ T6375] RIP: 0010:qd_put+0x18a/0x190 [ 215.413542][ T6375] Code: e7 e8 ea 43 26 fe e9 ee fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 7c 83 48 89 ef e8 c1 44 26 fe e9 76 ff ff ff e8 77 02 c1 fd 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 215.435531][ T6375] RSP: 0018:ffffc90003057c08 EFLAGS: 00010293 [ 215.442119][ T6375] RAX: ffffffff83ff5459 RBX: ffff88805ca39690 RCX: ffff888027338000 [ 215.450824][ T6375] RDX: 0000000000000000 RSI: 00000000ffffff80 RDI: 0000000000000000 [ 215.459403][ T6375] RBP: 00000000ffffff80 R08: 0000000000000003 R09: 0000000000000004 [ 215.468172][ T6375] R10: dffffc0000000000 R11: fffff5200060af68 R12: ffff88805ca39700 [ 215.476577][ T6375] R13: ffff888021ffb800 R14: ffff88805ca396c0 R15: 1ffff1100b9472e0 [ 215.484715][ T6375] FS: 0000555570f37500(0000) GS:ffff888125b03000(0000) knlGS:0000000000000000 [ 215.493728][ T6375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 215.500407][ T6375] CR2: 0000000000000000 CR3: 00000000730cc000 CR4: 00000000003526f0 [ 215.508485][ T6375] Call Trace: [ 215.511765][ T6375] [ 215.515156][ T6375] gfs2_quota_sync+0x3c4/0x460 [ 215.520299][ T6375] gfs2_sync_fs+0x4c/0xb0 [ 215.524726][ T6375] sync_filesystem+0xee/0x230 [ 215.529507][ T6375] generic_shutdown_super+0x6f/0x2c0 [ 215.534820][ T6375] kill_block_super+0x44/0x90 [ 215.539768][ T6375] deactivate_locked_super+0xbc/0x130 [ 215.545604][ T6375] cleanup_mnt+0x425/0x4c0 [ 215.550026][ T6375] ? lockdep_hardirqs_on+0x9c/0x150 [ 215.555485][ T6375] task_work_run+0x1d4/0x260 [ 215.560248][ T6375] ? __pfx_task_work_run+0x10/0x10 [ 215.565444][ T6375] ? __x64_sys_umount+0x122/0x160 [ 215.570616][ T6375] ? exit_to_user_mode_loop+0x40/0x130 [ 215.576333][ T6375] exit_to_user_mode_loop+0xe9/0x130 [ 215.581707][ T6375] do_syscall_64+0x2bd/0xfa0 [ 215.586413][ T6375] ? lockdep_hardirqs_on+0x9c/0x150 [ 215.591601][ T6375] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 215.597936][ T6375] ? clear_bhb_loop+0x60/0xb0 [ 215.602733][ T6375] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 215.608815][ T6375] RIP: 0033:0x7f49a9b76f07 [ 215.613384][ T6375] Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 [ 215.633601][ T6375] RSP: 002b:00007ffd4e30cd88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 215.642025][ T6375] RAX: 0000000000000000 RBX: 00007f49a9be3515 RCX: 00007f49a9b76f07 [ 215.650243][ T6375] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd4e30ce40 [ 215.658997][ T6375] RBP: 00007ffd4e30ce40 R08: 0000000000000000 R09: 0000000000000000 [ 215.667408][ T6375] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd4e30df00 [ 215.675561][ T6375] R13: 00007f49a9be3515 R14: 00000000000344eb R15: 0000000000033eaa [ 215.684155][ T6375] [ 215.687261][ T6375] Modules linked in: [ 215.692433][ T6375] ---[ end trace 0000000000000000 ]--- [ 215.698147][ T6375] RIP: 0010:qd_put+0x18a/0x190 [ 215.704580][ T6375] Code: e7 e8 ea 43 26 fe e9 ee fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 7c 83 48 89 ef e8 c1 44 26 fe e9 76 ff ff ff e8 77 02 c1 fd 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 215.726064][ T6375] RSP: 0018:ffffc90003057c08 EFLAGS: 00010293 [ 215.732411][ T6375] RAX: ffffffff83ff5459 RBX: ffff88805ca39690 RCX: ffff888027338000 [ 215.741076][ T6375] RDX: 0000000000000000 RSI: 00000000ffffff80 RDI: 0000000000000000 [ 215.749206][ T6375] RBP: 00000000ffffff80 R08: 0000000000000003 R09: 0000000000000004 [ 215.757719][ T6375] R10: dffffc0000000000 R11: fffff5200060af68 R12: ffff88805ca39700 [ 215.765861][ T6375] R13: ffff888021ffb800 R14: ffff88805ca396c0 R15: 1ffff1100b9472e0 [ 215.774178][ T6375] FS: 0000555570f37500(0000) GS:ffff888125b03000(0000) knlGS:0000000000000000 [ 215.783346][ T6375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 215.790502][ T6375] CR2: 0000000000000000 CR3: 00000000730cc000 CR4: 00000000003526f0 [ 215.799524][ T6375] Kernel panic - not syncing: Fatal exception [ 215.806015][ T6375] Kernel Offset: disabled [ 215.810488][ T6375] Rebooting in 86400 seconds..