ffffffffffffffda RBX: 00007ffe72d43c80 RCX: 00007f144ab90eea
[ 229.513042][ T4944] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe72d43c40
[ 229.521030][ T4944] RBP: 0000200000000400 R08: 00007ffe72d43c80 R09: 0000000002000000
[ 229.529040][ T4944] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 229.537020][ T4944] R13: 00007ffe72d43c40 R14: 00000000000125d8 R15: 00002000000022c0
[ 229.545013][ T4944]
[ 229.548051][ T4946] CPU: 0 PID: 4946 Comm: syz.2.379 Not tainted syzkaller #0
[ 229.550247][ T4944] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 229.555355][ T4946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 229.569736][ T4944] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 229.578505][ T4946] Call Trace:
[ 229.578513][ T4946]
[ 229.578521][ T4946] dump_stack_lvl+0x168/0x22e
[ 229.596016][ T4946] ? show_regs_print_info+0x12/0x12
[ 229.601256][ T4946] ? load_image+0x3b0/0x3b0
[ 229.605798][ T4946] sysfs_create_dir_ns+0x252/0x280
[ 229.610951][ T4946] ? sysfs_warn_dup+0xa0/0xa0
[ 229.615667][ T4946] ? kobject_set_name_vargs+0x5d/0x110
[ 229.621180][ T4946] ? do_raw_spin_unlock+0x11d/0x230
[ 229.626434][ T4946] kobject_add_internal+0x6b8/0xc80
[ 229.631671][ T4946] kobject_init_and_add+0x122/0x190
[ 229.636914][ T4946] ? lockdep_softirqs_off+0x420/0x420
[ 229.642326][ T4946] ? kobject_add+0x210/0x210
[ 229.646952][ T4946] ? __init_swait_queue_head+0xa5/0x150
[ 229.652538][ T4946] gfs2_sys_fs_add+0x234/0x480
[ 229.657352][ T4946] ? gfs2_recover_set+0x240/0x240
[ 229.662417][ T4946] ? snprintf+0xd7/0x120
[ 229.666700][ T4946] ? vscnprintf+0x80/0x80
[ 229.671092][ T4946] gfs2_fill_super+0x126f/0x1f80
[ 229.676089][ T4946] ? gfs2_reconfigure+0xcd0/0xcd0
[ 229.681164][ T4946] ? sb_set_blocksize+0xa5/0xe0
[ 229.686055][ T4946] get_tree_bdev+0x3f1/0x610
[ 229.690686][ T4946] ? gfs2_reconfigure+0xcd0/0xcd0
[ 229.695771][ T4946] gfs2_get_tree+0x4d/0x1e0
[ 229.700324][ T4946] vfs_get_tree+0x88/0x270
[ 229.704778][ T4946] do_new_mount+0x24a/0xa40
[ 229.709329][ T4946] __se_sys_mount+0x2d6/0x3c0
[ 229.714042][ T4946] ? __x64_sys_mount+0xc0/0xc0
[ 229.718840][ T4946] ? lockdep_hardirqs_on+0x94/0x140
[ 229.724065][ T4946] ? __x64_sys_mount+0x1c/0xc0
[ 229.728857][ T4946] do_syscall_64+0x4c/0xa0
[ 229.733317][ T4946] ? clear_bhb_loop+0x60/0xb0
[ 229.738023][ T4946] ? clear_bhb_loop+0x60/0xb0
[ 229.742739][ T4946] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 229.748673][ T4946] RIP: 0033:0x7ff99ff90eea
[ 229.753118][ T4946] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 229.772774][ T4946] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 229.781256][ T4946] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 229.789261][ T4946] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 229.797271][ T4946] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 229.805277][ T4946] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 229.813452][ T4946] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 229.821481][ T4946]
[ 229.828310][ T4946] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 229.842561][ T4946] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 230.095784][ T4945] loop3: detected capacity change from 0 to 32768
[ 230.110831][ T4945] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 230.118286][ T4945] CPU: 1 PID: 4945 Comm: syz.3.380 Not tainted syzkaller #0
[ 230.125612][ T4945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 230.135696][ T4945] Call Trace:
[ 230.139000][ T4945]
[ 230.141954][ T4945] dump_stack_lvl+0x168/0x22e
[ 230.146678][ T4945] ? show_regs_print_info+0x12/0x12
[ 230.151916][ T4945] ? load_image+0x3b0/0x3b0
[ 230.156481][ T4945] sysfs_create_dir_ns+0x252/0x280
[ 230.161634][ T4945] ? sysfs_warn_dup+0xa0/0xa0
[ 230.166331][ T4945] ? kobject_set_name_vargs+0x5d/0x110
[ 230.171817][ T4945] ? do_raw_spin_unlock+0x11d/0x230
[ 230.177047][ T4945] kobject_add_internal+0x6b8/0xc80
[ 230.182302][ T4945] kobject_init_and_add+0x122/0x190
[ 230.187539][ T4945] ? lockdep_softirqs_off+0x420/0x420
[ 230.193006][ T4945] ? kobject_add+0x210/0x210
[ 230.197748][ T4945] ? __init_swait_queue_head+0xa5/0x150
[ 230.203337][ T4945] gfs2_sys_fs_add+0x234/0x480
[ 230.208138][ T4945] ? gfs2_recover_set+0x240/0x240
[ 230.213198][ T4945] ? snprintf+0xd7/0x120
[ 230.217465][ T4945] ? vscnprintf+0x80/0x80
[ 230.221819][ T4945] gfs2_fill_super+0x126f/0x1f80
[ 230.226792][ T4945] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.231854][ T4945] ? sb_set_blocksize+0xa5/0xe0
[ 230.236747][ T4945] get_tree_bdev+0x3f1/0x610
[ 230.241354][ T4945] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.246403][ T4945] gfs2_get_tree+0x4d/0x1e0
[ 230.250931][ T4945] vfs_get_tree+0x88/0x270
[ 230.255363][ T4945] do_new_mount+0x24a/0xa40
[ 230.259886][ T4945] __se_sys_mount+0x2d6/0x3c0
[ 230.264583][ T4945] ? __x64_sys_mount+0xc0/0xc0
[ 230.269366][ T4945] ? lockdep_hardirqs_on+0x94/0x140
[ 230.274612][ T4945] ? __x64_sys_mount+0x1c/0xc0
[ 230.279387][ T4945] do_syscall_64+0x4c/0xa0
[ 230.283826][ T4945] ? clear_bhb_loop+0x60/0xb0
[ 230.288542][ T4945] ? clear_bhb_loop+0x60/0xb0
[ 230.293233][ T4945] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 230.299155][ T4945] RIP: 0033:0x7f9734390eea
[ 230.303680][ T4945] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 230.323311][ T4945] RSP: 002b:00007ffe79605438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 230.331831][ T4945] RAX: ffffffffffffffda RBX: 00007ffe796054c0 RCX: 00007f9734390eea
[ 230.339821][ T4945] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe79605480
[ 230.347808][ T4945] RBP: 0000200000000400 R08: 00007ffe796054c0 R09: 0000000002000000
[ 230.355796][ T4945] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 230.363812][ T4945] R13: 00007ffe79605480 R14: 00000000000125d8 R15: 00002000000022c0
[ 230.371811][ T4945]
[ 230.375617][ T4945] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 230.389254][ T4945] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 230.726726][ T4947] loop4: detected capacity change from 0 to 32768
[ 230.729761][ T4948] loop0: detected capacity change from 0 to 32768
[ 230.744007][ T4947] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 230.746215][ T4948] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 230.751878][ T4947] CPU: 1 PID: 4947 Comm: syz.4.382 Not tainted syzkaller #0
[ 230.766069][ T4947] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 230.776141][ T4947] Call Trace:
[ 230.779430][ T4947]
[ 230.782370][ T4947] dump_stack_lvl+0x168/0x22e
[ 230.787133][ T4947] ? show_regs_print_info+0x12/0x12
[ 230.792369][ T4947] ? load_image+0x3b0/0x3b0
[ 230.796899][ T4947] sysfs_create_dir_ns+0x252/0x280
[ 230.802027][ T4947] ? sysfs_warn_dup+0xa0/0xa0
[ 230.806721][ T4947] ? kobject_set_name_vargs+0x5d/0x110
[ 230.812199][ T4947] ? do_raw_spin_unlock+0x11d/0x230
[ 230.817437][ T4947] kobject_add_internal+0x6b8/0xc80
[ 230.822672][ T4947] kobject_init_and_add+0x122/0x190
[ 230.827899][ T4947] ? lockdep_softirqs_off+0x420/0x420
[ 230.833325][ T4947] ? kobject_add+0x210/0x210
[ 230.837955][ T4947] ? __init_swait_queue_head+0xa5/0x150
[ 230.843540][ T4947] gfs2_sys_fs_add+0x234/0x480
[ 230.848342][ T4947] ? gfs2_recover_set+0x240/0x240
[ 230.853397][ T4947] ? snprintf+0xd7/0x120
[ 230.857666][ T4947] ? vscnprintf+0x80/0x80
[ 230.862026][ T4947] gfs2_fill_super+0x126f/0x1f80
[ 230.867002][ T4947] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.872061][ T4947] ? sb_set_blocksize+0xa5/0xe0
[ 230.876964][ T4947] get_tree_bdev+0x3f1/0x610
[ 230.881578][ T4947] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.886652][ T4947] gfs2_get_tree+0x4d/0x1e0
[ 230.891185][ T4947] vfs_get_tree+0x88/0x270
[ 230.895623][ T4947] do_new_mount+0x24a/0xa40
[ 230.900144][ T4947] __se_sys_mount+0x2d6/0x3c0
[ 230.904858][ T4947] ? __x64_sys_mount+0xc0/0xc0
[ 230.909697][ T4947] ? lockdep_hardirqs_on+0x94/0x140
[ 230.914914][ T4947] ? __x64_sys_mount+0x1c/0xc0
[ 230.919697][ T4947] do_syscall_64+0x4c/0xa0
[ 230.924152][ T4947] ? clear_bhb_loop+0x60/0xb0
[ 230.928858][ T4947] ? clear_bhb_loop+0x60/0xb0
[ 230.933561][ T4947] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 230.939473][ T4947] RIP: 0033:0x7f144ab90eea
[ 230.943904][ T4947] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 230.963552][ T4947] RSP: 002b:00007ffe72d43bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 230.971996][ T4947] RAX: ffffffffffffffda RBX: 00007ffe72d43c80 RCX: 00007f144ab90eea
[ 230.979999][ T4947] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe72d43c40
[ 230.987988][ T4947] RBP: 0000200000000400 R08: 00007ffe72d43c80 R09: 0000000002000000
[ 230.995983][ T4947] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 231.003975][ T4947] R13: 00007ffe72d43c40 R14: 00000000000125d8 R15: 00002000000022c0
[ 231.011990][ T4947]
[ 231.015031][ T4948] CPU: 0 PID: 4948 Comm: syz.0.381 Not tainted syzkaller #0
[ 231.017236][ T4947] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 231.022367][ T4948] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 231.035627][ T4947] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 231.045534][ T4948] Call Trace:
[ 231.045545][ T4948]
[ 231.045555][ T4948] dump_stack_lvl+0x168/0x22e
[ 231.063027][ T4948] ? show_regs_print_info+0x12/0x12
[ 231.068271][ T4948] ? load_image+0x3b0/0x3b0
[ 231.072828][ T4948] sysfs_create_dir_ns+0x252/0x280
[ 231.077974][ T4948] ? sysfs_warn_dup+0xa0/0xa0
[ 231.082777][ T4948] ? kobject_set_name_vargs+0x5d/0x110
[ 231.088281][ T4948] ? do_raw_spin_unlock+0x11d/0x230
[ 231.093515][ T4948] kobject_add_internal+0x6b8/0xc80
[ 231.098744][ T4948] kobject_init_and_add+0x122/0x190
[ 231.103972][ T4948] ? lockdep_softirqs_off+0x420/0x420
[ 231.109394][ T4948] ? kobject_add+0x210/0x210
[ 231.114030][ T4948] ? __init_swait_queue_head+0xa5/0x150
[ 231.119625][ T4948] gfs2_sys_fs_add+0x234/0x480
[ 231.124427][ T4948] ? gfs2_recover_set+0x240/0x240
[ 231.129493][ T4948] ? snprintf+0xd7/0x120
[ 231.133795][ T4948] ? vscnprintf+0x80/0x80
[ 231.138173][ T4948] gfs2_fill_super+0x126f/0x1f80
[ 231.143166][ T4948] ? gfs2_reconfigure+0xcd0/0xcd0
[ 231.148238][ T4948] ? sb_set_blocksize+0xa5/0xe0
[ 231.153122][ T4948] get_tree_bdev+0x3f1/0x610
[ 231.157748][ T4948] ? gfs2_reconfigure+0xcd0/0xcd0
[ 231.162813][ T4948] gfs2_get_tree+0x4d/0x1e0
[ 231.167352][ T4948] vfs_get_tree+0x88/0x270
[ 231.171797][ T4948] do_new_mount+0x24a/0xa40
[ 231.176335][ T4948] __se_sys_mount+0x2d6/0x3c0
[ 231.181061][ T4948] ? __x64_sys_mount+0xc0/0xc0
[ 231.185858][ T4948] ? lockdep_hardirqs_on+0x94/0x140
[ 231.191084][ T4948] ? __x64_sys_mount+0x1c/0xc0
[ 231.195883][ T4948] do_syscall_64+0x4c/0xa0
[ 231.200390][ T4948] ? clear_bhb_loop+0x60/0xb0
[ 231.205116][ T4948] ? clear_bhb_loop+0x60/0xb0
[ 231.209849][ T4948] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 231.215782][ T4948] RIP: 0033:0x7f7c65d90eea
[ 231.220265][ T4948] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 231.239903][ T4948] RSP: 002b:00007fffbd32b338 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 231.248365][ T4948] RAX: ffffffffffffffda RBX: 00007fffbd32b3c0 RCX: 00007f7c65d90eea
[ 231.256374][ T4948] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fffbd32b380
[ 231.264373][ T4948] RBP: 0000200000000400 R08: 00007fffbd32b3c0 R09: 0000000002000000
[ 231.272367][ T4948] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 231.280373][ T4948] R13: 00007fffbd32b380 R14: 00000000000125d8 R15: 00002000000022c0
[ 231.288392][ T4948]
[ 231.293814][ T4948] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 231.307005][ T4948] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 231.560441][ T4949] loop2: detected capacity change from 0 to 32768
[ 231.860655][ T4951] loop3: detected capacity change from 0 to 32768
2026/01/01 13:10:58 executed programs: 376
[ 231.906759][ T4950] loop4: detected capacity change from 0 to 32768
[ 231.918188][ T4782] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 231.926934][ T4782] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem.
[ 231.955783][ T4949] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 231.963229][ T4949] CPU: 1 PID: 4949 Comm: syz.2.383 Not tainted syzkaller #0
[ 231.970541][ T4949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 231.980663][ T4949] Call Trace:
[ 231.983968][ T4949]
[ 231.986930][ T4949] dump_stack_lvl+0x168/0x22e
[ 231.991658][ T4949] ? show_regs_print_info+0x12/0x12
[ 231.996892][ T4949] ? load_image+0x3b0/0x3b0
[ 232.001433][ T4949] sysfs_create_dir_ns+0x252/0x280
[ 232.006579][ T4949] ? sysfs_warn_dup+0xa0/0xa0
[ 232.010042][ T4951] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 232.011287][ T4949] ? kobject_set_name_vargs+0x5d/0x110
[ 232.024127][ T4949] ? do_raw_spin_unlock+0x11d/0x230
[ 232.029355][ T4949] kobject_add_internal+0x6b8/0xc80
[ 232.034589][ T4949] kobject_init_and_add+0x122/0x190
[ 232.039811][ T4949] ? lockdep_softirqs_off+0x420/0x420
[ 232.045212][ T4949] ? kobject_add+0x210/0x210
[ 232.049839][ T4949] ? __init_swait_queue_head+0xa5/0x150
[ 232.055424][ T4949] gfs2_sys_fs_add+0x234/0x480
[ 232.060224][ T4949] ? gfs2_recover_set+0x240/0x240
[ 232.065271][ T4949] ? snprintf+0xd7/0x120
[ 232.069539][ T4949] ? vscnprintf+0x80/0x80
[ 232.073906][ T4949] gfs2_fill_super+0x126f/0x1f80
[ 232.078879][ T4949] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.083952][ T4949] ? sb_set_blocksize+0xa5/0xe0
[ 232.088830][ T4949] get_tree_bdev+0x3f1/0x610
[ 232.093445][ T4949] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.098491][ T4949] gfs2_get_tree+0x4d/0x1e0
[ 232.103055][ T4949] vfs_get_tree+0x88/0x270
[ 232.107490][ T4949] do_new_mount+0x24a/0xa40
[ 232.112029][ T4949] __se_sys_mount+0x2d6/0x3c0
[ 232.116733][ T4949] ? __x64_sys_mount+0xc0/0xc0
[ 232.121517][ T4949] ? lockdep_hardirqs_on+0x94/0x140
[ 232.126743][ T4949] ? __x64_sys_mount+0x1c/0xc0
[ 232.131521][ T4949] do_syscall_64+0x4c/0xa0
[ 232.135964][ T4949] ? clear_bhb_loop+0x60/0xb0
[ 232.140663][ T4949] ? clear_bhb_loop+0x60/0xb0
[ 232.145354][ T4949] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 232.151274][ T4949] RIP: 0033:0x7ff99ff90eea
[ 232.155713][ T4949] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 232.175344][ T4949] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 232.183786][ T4949] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 232.191784][ T4949] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 232.199768][ T4949] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 232.207759][ T4949] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 232.215756][ T4949] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 232.223767][ T4949]
[ 232.226803][ T4951] CPU: 0 PID: 4951 Comm: syz.3.384 Not tainted syzkaller #0
[ 232.229336][ T4949] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 232.234094][ T4951] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 232.247283][ T4949] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 232.257242][ T4951] Call Trace:
[ 232.257254][ T4951]
[ 232.257265][ T4951] dump_stack_lvl+0x168/0x22e
[ 232.274743][ T4951] ? show_regs_print_info+0x12/0x12
[ 232.279989][ T4951] ? load_image+0x3b0/0x3b0
[ 232.284541][ T4951] sysfs_create_dir_ns+0x252/0x280
[ 232.289729][ T4951] ? sysfs_warn_dup+0xa0/0xa0
[ 232.294448][ T4951] ? kobject_set_name_vargs+0x5d/0x110
[ 232.299925][ T4951] ? do_raw_spin_unlock+0x11d/0x230
[ 232.305154][ T4951] kobject_add_internal+0x6b8/0xc80
[ 232.310376][ T4951] kobject_init_and_add+0x122/0x190
[ 232.315600][ T4951] ? lockdep_softirqs_off+0x420/0x420
[ 232.320987][ T4951] ? kobject_add+0x210/0x210
[ 232.325607][ T4951] ? __init_swait_queue_head+0xa5/0x150
[ 232.331187][ T4951] gfs2_sys_fs_add+0x234/0x480
[ 232.335975][ T4951] ? gfs2_recover_set+0x240/0x240
[ 232.341027][ T4951] ? snprintf+0xd7/0x120
[ 232.345286][ T4951] ? vscnprintf+0x80/0x80
[ 232.349637][ T4951] gfs2_fill_super+0x126f/0x1f80
[ 232.354622][ T4951] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.359682][ T4951] ? sb_set_blocksize+0xa5/0xe0
[ 232.364548][ T4951] get_tree_bdev+0x3f1/0x610
[ 232.369156][ T4951] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.374203][ T4951] gfs2_get_tree+0x4d/0x1e0
[ 232.378731][ T4951] vfs_get_tree+0x88/0x270
[ 232.383169][ T4951] do_new_mount+0x24a/0xa40
[ 232.387692][ T4951] __se_sys_mount+0x2d6/0x3c0
[ 232.392380][ T4951] ? __x64_sys_mount+0xc0/0xc0
[ 232.397155][ T4951] ? lockdep_hardirqs_on+0x94/0x140
[ 232.402385][ T4951] ? __x64_sys_mount+0x1c/0xc0
[ 232.407172][ T4951] do_syscall_64+0x4c/0xa0
[ 232.411620][ T4951] ? clear_bhb_loop+0x60/0xb0
[ 232.416308][ T4951] ? clear_bhb_loop+0x60/0xb0
[ 232.421001][ T4951] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 232.426903][ T4951] RIP: 0033:0x7f9734390eea
[ 232.431327][ T4951] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 232.450945][ T4951] RSP: 002b:00007ffe79605438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 232.459378][ T4951] RAX: ffffffffffffffda RBX: 00007ffe796054c0 RCX: 00007f9734390eea
[ 232.467371][ T4951] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe79605480
[ 232.475348][ T4951] RBP: 0000200000000400 R08: 00007ffe796054c0 R09: 0000000002000000
[ 232.483335][ T4951] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 232.491319][ T4951] R13: 00007ffe79605480 R14: 00000000000125d8 R15: 00002000000022c0
[ 232.499321][ T4951]
[ 232.502402][ T4951] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 232.508575][ T4950] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 232.515621][ T4951] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 232.523403][ T4950] CPU: 1 PID: 4950 Comm: syz.4.385 Not tainted syzkaller #0
[ 232.536712][ T4950] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 232.546799][ T4950] Call Trace:
[ 232.550105][ T4950]
[ 232.553057][ T4950] dump_stack_lvl+0x168/0x22e
[ 232.557775][ T4950] ? show_regs_print_info+0x12/0x12
[ 232.563055][ T4950] ? load_image+0x3b0/0x3b0
[ 232.567602][ T4950] sysfs_create_dir_ns+0x252/0x280
[ 232.572612][ T4782] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 232.572737][ T4950] ? sysfs_warn_dup+0xa0/0xa0
[ 232.587966][ T4950] ? kobject_set_name_vargs+0x5d/0x110
[ 232.593476][ T4950] ? do_raw_spin_unlock+0x11d/0x230
[ 232.598731][ T4950] kobject_add_internal+0x6b8/0xc80
[ 232.603972][ T4950] kobject_init_and_add+0x122/0x190
[ 232.609209][ T4950] ? lockdep_softirqs_off+0x420/0x420
[ 232.614629][ T4950] ? kobject_add+0x210/0x210
[ 232.619271][ T4950] ? __init_swait_queue_head+0xa5/0x150
[ 232.624876][ T4950] gfs2_sys_fs_add+0x234/0x480
[ 232.629743][ T4950] ? gfs2_recover_set+0x240/0x240
[ 232.634833][ T4950] ? snprintf+0xd7/0x120
[ 232.639121][ T4950] ? vscnprintf+0x80/0x80
[ 232.643498][ T4950] gfs2_fill_super+0x126f/0x1f80
[ 232.648512][ T4950] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.653602][ T4950] ? sb_set_blocksize+0xa5/0xe0
[ 232.658483][ T4950] get_tree_bdev+0x3f1/0x610
[ 232.663112][ T4950] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.668183][ T4950] gfs2_get_tree+0x4d/0x1e0
[ 232.672734][ T4950] vfs_get_tree+0x88/0x270
[ 232.677186][ T4950] do_new_mount+0x24a/0xa40
[ 232.681726][ T4950] __se_sys_mount+0x2d6/0x3c0
[ 232.686442][ T4950] ? __x64_sys_mount+0xc0/0xc0
[ 232.691242][ T4950] ? lockdep_hardirqs_on+0x94/0x140
[ 232.696475][ T4950] ? __x64_sys_mount+0x1c/0xc0
[ 232.701300][ T4950] do_syscall_64+0x4c/0xa0
[ 232.705754][ T4950] ? clear_bhb_loop+0x60/0xb0
[ 232.710475][ T4950] ? clear_bhb_loop+0x60/0xb0
[ 232.715200][ T4950] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 232.721131][ T4950] RIP: 0033:0x7f144ab90eea
[ 232.725570][ T4950] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 232.745210][ T4950] RSP: 002b:00007ffe72d43bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 232.753670][ T4950] RAX: ffffffffffffffda RBX: 00007ffe72d43c80 RCX: 00007f144ab90eea
[ 232.761669][ T4950] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe72d43c40
[ 232.769678][ T4950] RBP: 0000200000000400 R08: 00007ffe72d43c80 R09: 0000000002000000
[ 232.777684][ T4950] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 232.785688][ T4950] R13: 00007ffe72d43c40 R14: 00000000000125d8 R15: 00002000000022c0
[ 232.793705][ T4950]
[ 232.796836][ T4950] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 232.809991][ T4950] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 233.132541][ T4952] loop0: detected capacity change from 0 to 32768
[ 233.142114][ T4952] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 233.150185][ T4952] CPU: 1 PID: 4952 Comm: syz.0.386 Not tainted syzkaller #0
[ 233.157510][ T4952] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 233.167594][ T4952] Call Trace:
[ 233.170896][ T4952]
[ 233.173944][ T4952] dump_stack_lvl+0x168/0x22e
[ 233.178664][ T4952] ? show_regs_print_info+0x12/0x12
[ 233.183898][ T4952] ? load_image+0x3b0/0x3b0
[ 233.188448][ T4952] sysfs_create_dir_ns+0x252/0x280
[ 233.193626][ T4952] ? sysfs_warn_dup+0xa0/0xa0
[ 233.198327][ T4952] ? kobject_set_name_vargs+0x5d/0x110
[ 233.203816][ T4952] ? do_raw_spin_unlock+0x11d/0x230
[ 233.209054][ T4952] kobject_add_internal+0x6b8/0xc80
[ 233.214308][ T4952] kobject_init_and_add+0x122/0x190
[ 233.219544][ T4952] ? lockdep_softirqs_off+0x420/0x420
[ 233.225001][ T4952] ? kobject_add+0x210/0x210
[ 233.229643][ T4952] ? __init_swait_queue_head+0xa5/0x150
[ 233.235228][ T4952] gfs2_sys_fs_add+0x234/0x480
[ 233.240039][ T4952] ? gfs2_recover_set+0x240/0x240
[ 233.245100][ T4952] ? snprintf+0xd7/0x120
[ 233.249373][ T4952] ? vscnprintf+0x80/0x80
[ 233.253757][ T4952] gfs2_fill_super+0x126f/0x1f80
[ 233.258777][ T4952] ? gfs2_reconfigure+0xcd0/0xcd0
[ 233.263858][ T4952] ? sb_set_blocksize+0xa5/0xe0
[ 233.268747][ T4952] get_tree_bdev+0x3f1/0x610
[ 233.273371][ T4952] ? gfs2_reconfigure+0xcd0/0xcd0
[ 233.278434][ T4952] gfs2_get_tree+0x4d/0x1e0
[ 233.282984][ T4952] vfs_get_tree+0x88/0x270
[ 233.287442][ T4952] do_new_mount+0x24a/0xa40
[ 233.291978][ T4952] __se_sys_mount+0x2d6/0x3c0
[ 233.296678][ T4952] ? __x64_sys_mount+0xc0/0xc0
[ 233.301481][ T4952] ? lockdep_hardirqs_on+0x94/0x140
[ 233.306711][ T4952] ? __x64_sys_mount+0x1c/0xc0
[ 233.311514][ T4952] do_syscall_64+0x4c/0xa0
[ 233.315968][ T4952] ? clear_bhb_loop+0x60/0xb0
[ 233.320679][ T4952] ? clear_bhb_loop+0x60/0xb0
[ 233.325396][ T4952] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 233.331332][ T4952] RIP: 0033:0x7f7c65d90eea
[ 233.335774][ T4952] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 233.355410][ T4952] RSP: 002b:00007fffbd32b338 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 233.363868][ T4952] RAX: ffffffffffffffda RBX: 00007fffbd32b3c0 RCX: 00007f7c65d90eea
[ 233.371889][ T4952] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fffbd32b380
[ 233.379891][ T4952] RBP: 0000200000000400 R08: 00007fffbd32b3c0 R09: 0000000002000000
[ 233.387887][ T4952] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 233.395890][ T4952] R13: 00007fffbd32b380 R14: 00000000000125d8 R15: 00002000000022c0
[ 233.403899][ T4952]
[ 233.407635][ T4952] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 233.420834][ T4952] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 233.604165][ T4955] loop2: detected capacity change from 0 to 32768
[ 233.615701][ T4604] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 233.631542][ T4955] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 233.639022][ T4955] CPU: 0 PID: 4955 Comm: syz.2.387 Not tainted syzkaller #0
[ 233.646332][ T4955] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 233.656417][ T4955] Call Trace:
[ 233.659742][ T4955]
[ 233.662695][ T4955] dump_stack_lvl+0x168/0x22e
[ 233.667418][ T4955] ? show_regs_print_info+0x12/0x12
[ 233.672685][ T4955] ? load_image+0x3b0/0x3b0
[ 233.677242][ T4955] sysfs_create_dir_ns+0x252/0x280
[ 233.682406][ T4955] ? sysfs_warn_dup+0xa0/0xa0
[ 233.687132][ T4955] ? kobject_set_name_vargs+0x5d/0x110
[ 233.692633][ T4955] ? do_raw_spin_unlock+0x11d/0x230
[ 233.697874][ T4955] kobject_add_internal+0x6b8/0xc80
[ 233.703116][ T4955] kobject_init_and_add+0x122/0x190
[ 233.708343][ T4955] ? lockdep_softirqs_off+0x420/0x420
[ 233.713783][ T4955] ? kobject_add+0x210/0x210
[ 233.718417][ T4955] ? __init_swait_queue_head+0xa5/0x150
[ 233.723999][ T4955] gfs2_sys_fs_add+0x234/0x480
[ 233.728807][ T4955] ? gfs2_recover_set+0x240/0x240
[ 233.733872][ T4955] ? snprintf+0xd7/0x120
[ 233.738153][ T4955] ? vscnprintf+0x80/0x80
[ 233.742524][ T4955] gfs2_fill_super+0x126f/0x1f80
[ 233.747517][ T4955] ? gfs2_reconfigure+0xcd0/0xcd0
[ 233.752589][ T4955] ? sb_set_blocksize+0xa5/0xe0
[ 233.757478][ T4955] get_tree_bdev+0x3f1/0x610
[ 233.762103][ T4955] ? gfs2_reconfigure+0xcd0/0xcd0
[ 233.767197][ T4955] gfs2_get_tree+0x4d/0x1e0
[ 233.771748][ T4955] vfs_get_tree+0x88/0x270
[ 233.776193][ T4955] do_new_mount+0x24a/0xa40
[ 233.780742][ T4955] __se_sys_mount+0x2d6/0x3c0
[ 233.785464][ T4955] ? __x64_sys_mount+0xc0/0xc0
[ 233.790265][ T4955] ? lockdep_hardirqs_on+0x94/0x140
[ 233.795485][ T4955] ? __x64_sys_mount+0x1c/0xc0
[ 233.800286][ T4955] do_syscall_64+0x4c/0xa0
[ 233.804736][ T4955] ? clear_bhb_loop+0x60/0xb0
[ 233.809467][ T4955] ? clear_bhb_loop+0x60/0xb0
[ 233.814177][ T4955] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 233.820105][ T4955] RIP: 0033:0x7ff99ff90eea
[ 233.824540][ T4955] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 233.844177][ T4955] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 233.852626][ T4955] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 233.860631][ T4955] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 233.868670][ T4955] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 233.876683][ T4955] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 233.884685][ T4955] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 233.892706][ T4955]
[ 233.896890][ T4955] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 233.910072][ T4955] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 233.930526][ T4956] loop3: detected capacity change from 0 to 32768
[ 233.938801][ T4956] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 233.946297][ T4956] CPU: 1 PID: 4956 Comm: syz.3.388 Not tainted syzkaller #0
[ 233.953607][ T4956] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 233.963718][ T4956] Call Trace:
[ 233.967038][ T4956]
[ 233.969988][ T4956] dump_stack_lvl+0x168/0x22e
[ 233.974733][ T4956] ? show_regs_print_info+0x12/0x12
[ 233.979969][ T4956] ? load_image+0x3b0/0x3b0
[ 233.984516][ T4956] sysfs_create_dir_ns+0x252/0x280
[ 233.989669][ T4956] ? sysfs_warn_dup+0xa0/0xa0
[ 233.994382][ T4956] ? kobject_set_name_vargs+0x5d/0x110
[ 233.999884][ T4956] ? do_raw_spin_unlock+0x11d/0x230
[ 234.005126][ T4956] kobject_add_internal+0x6b8/0xc80
[ 234.010363][ T4956] kobject_init_and_add+0x122/0x190
[ 234.015595][ T4956] ? lockdep_softirqs_off+0x420/0x420
[ 234.021050][ T4956] ? kobject_add+0x210/0x210
[ 234.025679][ T4956] ? __init_swait_queue_head+0xa5/0x150
[ 234.031263][ T4956] gfs2_sys_fs_add+0x234/0x480
[ 234.036063][ T4956] ? gfs2_recover_set+0x240/0x240
[ 234.041132][ T4956] ? snprintf+0xd7/0x120
[ 234.045410][ T4956] ? vscnprintf+0x80/0x80
[ 234.049785][ T4956] gfs2_fill_super+0x126f/0x1f80
[ 234.054778][ T4956] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.059855][ T4956] ? sb_set_blocksize+0xa5/0xe0
[ 234.064743][ T4956] get_tree_bdev+0x3f1/0x610
[ 234.069364][ T4956] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.074423][ T4956] gfs2_get_tree+0x4d/0x1e0
[ 234.078979][ T4956] vfs_get_tree+0x88/0x270
[ 234.083431][ T4956] do_new_mount+0x24a/0xa40
[ 234.087989][ T4956] __se_sys_mount+0x2d6/0x3c0
[ 234.092704][ T4956] ? __x64_sys_mount+0xc0/0xc0
[ 234.097514][ T4956] ? lockdep_hardirqs_on+0x94/0x140
[ 234.102744][ T4956] ? __x64_sys_mount+0x1c/0xc0
[ 234.107534][ T4956] do_syscall_64+0x4c/0xa0
[ 234.111993][ T4956] ? clear_bhb_loop+0x60/0xb0
[ 234.116711][ T4956] ? clear_bhb_loop+0x60/0xb0
[ 234.121434][ T4956] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 234.127380][ T4956] RIP: 0033:0x7f9734390eea
[ 234.131879][ T4956] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 234.151528][ T4956] RSP: 002b:00007ffe79605438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 234.159976][ T4956] RAX: ffffffffffffffda RBX: 00007ffe796054c0 RCX: 00007f9734390eea
[ 234.167985][ T4956] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe79605480
[ 234.175991][ T4956] RBP: 0000200000000400 R08: 00007ffe796054c0 R09: 0000000002000000
[ 234.183998][ T4956] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 234.192014][ T4956] R13: 00007ffe79605480 R14: 00000000000125d8 R15: 00002000000022c0
[ 234.200013][ T4956]
[ 234.204031][ T4956] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 234.217323][ T4956] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 234.639233][ T4959] loop4: detected capacity change from 0 to 32768
[ 234.766065][ T4957] loop2: detected capacity change from 0 to 32768
[ 234.782158][ T4959] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 234.790385][ T4959] CPU: 0 PID: 4959 Comm: syz.4.391 Not tainted syzkaller #0
[ 234.797699][ T4959] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 234.807782][ T4959] Call Trace:
[ 234.811081][ T4959]
[ 234.814042][ T4959] dump_stack_lvl+0x168/0x22e
[ 234.818766][ T4959] ? show_regs_print_info+0x12/0x12
[ 234.824002][ T4959] ? load_image+0x3b0/0x3b0
[ 234.828573][ T4959] sysfs_create_dir_ns+0x252/0x280
[ 234.833769][ T4959] ? sysfs_warn_dup+0xa0/0xa0
[ 234.838597][ T4959] ? kobject_set_name_vargs+0x5d/0x110
[ 234.844097][ T4959] ? do_raw_spin_unlock+0x11d/0x230
[ 234.849374][ T4959] kobject_add_internal+0x6b8/0xc80
[ 234.854634][ T4959] kobject_init_and_add+0x122/0x190
[ 234.859885][ T4959] ? lockdep_softirqs_off+0x420/0x420
[ 234.865298][ T4959] ? kobject_add+0x210/0x210
[ 234.869924][ T4959] ? __init_swait_queue_head+0xa5/0x150
[ 234.875503][ T4959] gfs2_sys_fs_add+0x234/0x480
[ 234.880302][ T4959] ? gfs2_recover_set+0x240/0x240
[ 234.885374][ T4959] ? snprintf+0xd7/0x120
[ 234.889663][ T4959] ? vscnprintf+0x80/0x80
[ 234.894036][ T4959] gfs2_fill_super+0x126f/0x1f80
[ 234.899029][ T4959] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.904115][ T4959] ? sb_set_blocksize+0xa5/0xe0
[ 234.909015][ T4959] get_tree_bdev+0x3f1/0x610
[ 234.913638][ T4959] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.918721][ T4959] gfs2_get_tree+0x4d/0x1e0
[ 234.923271][ T4959] vfs_get_tree+0x88/0x270
[ 234.927715][ T4959] do_new_mount+0x24a/0xa40
[ 234.932247][ T4959] __se_sys_mount+0x2d6/0x3c0
[ 234.936958][ T4959] ? __x64_sys_mount+0xc0/0xc0
[ 234.941760][ T4959] ? lockdep_hardirqs_on+0x94/0x140
[ 234.947023][ T4959] ? __x64_sys_mount+0x1c/0xc0
[ 234.951822][ T4959] do_syscall_64+0x4c/0xa0
[ 234.956304][ T4959] ? clear_bhb_loop+0x60/0xb0
[ 234.961015][ T4959] ? clear_bhb_loop+0x60/0xb0
[ 234.965741][ T4959] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 234.971660][ T4959] RIP: 0033:0x7f144ab90eea
[ 234.976109][ T4959] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 234.995751][ T4959] RSP: 002b:00007ffe72d43bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.004204][ T4959] RAX: ffffffffffffffda RBX: 00007ffe72d43c80 RCX: 00007f144ab90eea
[ 235.012210][ T4959] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe72d43c40
[ 235.020216][ T4959] RBP: 0000200000000400 R08: 00007ffe72d43c80 R09: 0000000002000000
[ 235.028223][ T4959] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 235.036215][ T4959] R13: 00007ffe72d43c40 R14: 00000000000125d8 R15: 00002000000022c0
[ 235.044226][ T4959]
[ 235.047406][ T4959] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.060581][ T4959] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.072199][ T4957] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.079645][ T4957] CPU: 0 PID: 4957 Comm: syz.2.389 Not tainted syzkaller #0
[ 235.086951][ T4957] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 235.097060][ T4957] Call Trace:
[ 235.100362][ T4957]
[ 235.103333][ T4957] dump_stack_lvl+0x168/0x22e
[ 235.108058][ T4957] ? show_regs_print_info+0x12/0x12
[ 235.113306][ T4957] ? load_image+0x3b0/0x3b0
[ 235.117861][ T4957] sysfs_create_dir_ns+0x252/0x280
[ 235.123034][ T4957] ? sysfs_warn_dup+0xa0/0xa0
[ 235.127752][ T4957] ? kobject_set_name_vargs+0x5d/0x110
[ 235.133245][ T4957] ? do_raw_spin_unlock+0x11d/0x230
[ 235.138501][ T4957] kobject_add_internal+0x6b8/0xc80
[ 235.143754][ T4957] kobject_init_and_add+0x122/0x190
[ 235.148986][ T4957] ? lockdep_softirqs_off+0x420/0x420
[ 235.154403][ T4957] ? kobject_add+0x210/0x210
[ 235.159025][ T4957] ? __init_swait_queue_head+0xa5/0x150
[ 235.164622][ T4957] gfs2_sys_fs_add+0x234/0x480
[ 235.169423][ T4957] ? gfs2_recover_set+0x240/0x240
[ 235.174493][ T4957] ? snprintf+0xd7/0x120
[ 235.178773][ T4957] ? vscnprintf+0x80/0x80
[ 235.183138][ T4957] gfs2_fill_super+0x126f/0x1f80
[ 235.188136][ T4957] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.193207][ T4957] ? sb_set_blocksize+0xa5/0xe0
[ 235.198086][ T4957] get_tree_bdev+0x3f1/0x610
[ 235.202703][ T4957] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.207769][ T4957] gfs2_get_tree+0x4d/0x1e0
[ 235.212309][ T4957] vfs_get_tree+0x88/0x270
[ 235.216747][ T4957] do_new_mount+0x24a/0xa40
[ 235.221293][ T4957] __se_sys_mount+0x2d6/0x3c0
[ 235.226014][ T4957] ? __x64_sys_mount+0xc0/0xc0
[ 235.230825][ T4957] ? lockdep_hardirqs_on+0x94/0x140
[ 235.236044][ T4957] ? __x64_sys_mount+0x1c/0xc0
[ 235.240837][ T4957] do_syscall_64+0x4c/0xa0
[ 235.244032][ T4958] loop0: detected capacity change from 0 to 32768
[ 235.245297][ T4957] ? clear_bhb_loop+0x60/0xb0
[ 235.256438][ T4957] ? clear_bhb_loop+0x60/0xb0
[ 235.261154][ T4957] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 235.267098][ T4957] RIP: 0033:0x7ff99ff90eea
[ 235.271550][ T4957] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 235.291196][ T4957] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.299649][ T4957] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 235.307644][ T4957] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 235.315640][ T4957] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 235.323642][ T4957] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 235.331646][ T4957] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 235.339661][ T4957]
[ 235.342763][ T4957] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.355929][ T4957] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.404946][ T4958] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.412597][ T4958] CPU: 0 PID: 4958 Comm: syz.0.390 Not tainted syzkaller #0
[ 235.419948][ T4958] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 235.430037][ T4958] Call Trace:
[ 235.433342][ T4958]
[ 235.436301][ T4958] dump_stack_lvl+0x168/0x22e
[ 235.441037][ T4958] ? show_regs_print_info+0x12/0x12
[ 235.446282][ T4958] ? load_image+0x3b0/0x3b0
[ 235.450830][ T4958] sysfs_create_dir_ns+0x252/0x280
[ 235.455986][ T4958] ? sysfs_warn_dup+0xa0/0xa0
[ 235.460699][ T4958] ? kobject_set_name_vargs+0x5d/0x110
[ 235.466187][ T4958] ? do_raw_spin_unlock+0x11d/0x230
[ 235.471436][ T4958] kobject_add_internal+0x6b8/0xc80
[ 235.476693][ T4958] kobject_init_and_add+0x122/0x190
[ 235.481918][ T4958] ? lockdep_softirqs_off+0x420/0x420
[ 235.487352][ T4958] ? kobject_add+0x210/0x210
[ 235.491999][ T4958] ? __init_swait_queue_head+0xa5/0x150
[ 235.497599][ T4958] gfs2_sys_fs_add+0x234/0x480
[ 235.502405][ T4958] ? gfs2_recover_set+0x240/0x240
[ 235.507469][ T4958] ? snprintf+0xd7/0x120
[ 235.511755][ T4958] ? vscnprintf+0x80/0x80
[ 235.516147][ T4958] gfs2_fill_super+0x126f/0x1f80
[ 235.521130][ T4958] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.526206][ T4958] ? sb_set_blocksize+0xa5/0xe0
[ 235.531090][ T4958] get_tree_bdev+0x3f1/0x610
[ 235.535719][ T4958] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.540778][ T4958] gfs2_get_tree+0x4d/0x1e0
[ 235.545316][ T4958] vfs_get_tree+0x88/0x270
[ 235.549764][ T4958] do_new_mount+0x24a/0xa40
[ 235.554300][ T4958] __se_sys_mount+0x2d6/0x3c0
[ 235.559008][ T4958] ? __x64_sys_mount+0xc0/0xc0
[ 235.563798][ T4958] ? lockdep_hardirqs_on+0x94/0x140
[ 235.569022][ T4958] ? __x64_sys_mount+0x1c/0xc0
[ 235.573813][ T4958] do_syscall_64+0x4c/0xa0
[ 235.578263][ T4958] ? clear_bhb_loop+0x60/0xb0
[ 235.582972][ T4958] ? clear_bhb_loop+0x60/0xb0
[ 235.587673][ T4958] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 235.593587][ T4958] RIP: 0033:0x7f7c65d90eea
[ 235.598026][ T4958] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 235.617665][ T4958] RSP: 002b:00007fffbd32b338 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.626120][ T4958] RAX: ffffffffffffffda RBX: 00007fffbd32b3c0 RCX: 00007f7c65d90eea
[ 235.634119][ T4958] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fffbd32b380
[ 235.642159][ T4958] RBP: 0000200000000400 R08: 00007fffbd32b3c0 R09: 0000000002000000
[ 235.650160][ T4958] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 235.658158][ T4958] R13: 00007fffbd32b380 R14: 00000000000125d8 R15: 00002000000022c0
[ 235.666173][ T4958]
[ 235.669330][ T4958] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.682498][ T4958] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.843531][ T4960] loop3: detected capacity change from 0 to 32768
[ 235.867390][ T4960] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.874805][ T4960] CPU: 1 PID: 4960 Comm: syz.3.392 Not tainted syzkaller #0
[ 235.882107][ T4960] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 235.892184][ T4960] Call Trace:
[ 235.895491][ T4960]
[ 235.898452][ T4960] dump_stack_lvl+0x168/0x22e
[ 235.903174][ T4960] ? show_regs_print_info+0x12/0x12
[ 235.908411][ T4960] ? load_image+0x3b0/0x3b0
[ 235.912959][ T4960] sysfs_create_dir_ns+0x252/0x280
[ 235.918105][ T4960] ? sysfs_warn_dup+0xa0/0xa0
[ 235.922815][ T4960] ? kobject_set_name_vargs+0x5d/0x110
[ 235.928321][ T4960] ? do_raw_spin_unlock+0x11d/0x230
[ 235.933597][ T4960] kobject_add_internal+0x6b8/0xc80
[ 235.938930][ T4960] kobject_init_and_add+0x122/0x190
[ 235.944176][ T4960] ? lockdep_softirqs_off+0x420/0x420
[ 235.949595][ T4960] ? kobject_add+0x210/0x210
[ 235.954224][ T4960] ? __init_swait_queue_head+0xa5/0x150
[ 235.959812][ T4960] gfs2_sys_fs_add+0x234/0x480
[ 235.964611][ T4960] ? gfs2_recover_set+0x240/0x240
[ 235.969675][ T4960] ? snprintf+0xd7/0x120
[ 235.973954][ T4960] ? vscnprintf+0x80/0x80
[ 235.978324][ T4960] gfs2_fill_super+0x126f/0x1f80
[ 235.983316][ T4960] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.988381][ T4960] ? sb_set_blocksize+0xa5/0xe0
[ 235.993280][ T4960] get_tree_bdev+0x3f1/0x610
[ 235.997896][ T4960] ? gfs2_reconfigure+0xcd0/0xcd0
[ 236.002954][ T4960] gfs2_get_tree+0x4d/0x1e0
[ 236.007518][ T4960] vfs_get_tree+0x88/0x270
[ 236.011989][ T4960] do_new_mount+0x24a/0xa40
[ 236.016528][ T4960] __se_sys_mount+0x2d6/0x3c0
[ 236.021243][ T4960] ? __x64_sys_mount+0xc0/0xc0
[ 236.026043][ T4960] ? lockdep_hardirqs_on+0x94/0x140
[ 236.031271][ T4960] ? __x64_sys_mount+0x1c/0xc0
[ 236.036073][ T4960] do_syscall_64+0x4c/0xa0
[ 236.040523][ T4960] ? clear_bhb_loop+0x60/0xb0
[ 236.045237][ T4960] ? clear_bhb_loop+0x60/0xb0
[ 236.049949][ T4960] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 236.055891][ T4960] RIP: 0033:0x7f9734390eea
[ 236.060333][ T4960] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 236.079979][ T4960] RSP: 002b:00007ffe79605438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 236.088427][ T4960] RAX: ffffffffffffffda RBX: 00007ffe796054c0 RCX: 00007f9734390eea
[ 236.096429][ T4960] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe79605480
[ 236.104440][ T4960] RBP: 0000200000000400 R08: 00007ffe796054c0 R09: 0000000002000000
[ 236.112454][ T4960] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 236.120456][ T4960] R13: 00007ffe79605480 R14: 00000000000125d8 R15: 00002000000022c0
[ 236.128472][ T4960]
[ 236.132518][ T4960] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 236.145698][ T4960] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 236.316206][ T4332] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1
[ 236.327001][ T4401] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9
[ 236.451828][ T4332] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9
[ 236.483625][ T4543] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 236.500098][ T4429] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 236.510245][ T4430] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 236.537393][ T4332] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4
[ 236.546696][ T4401] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3
[ 236.553939][ T4401] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2
[ 236.938222][ T4966] loop0: detected capacity change from 0 to 32768
[ 237.292767][ T4967] loop2: detected capacity change from 0 to 32768
[ 237.415935][ T4967] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 237.423393][ T4967] CPU: 1 PID: 4967 Comm: syz.2.396 Not tainted syzkaller #0
[ 237.430707][ T4967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 237.440785][ T4967] Call Trace:
[ 237.444104][ T4967]
[ 237.447073][ T4967] dump_stack_lvl+0x168/0x22e
[ 237.451797][ T4967] ? show_regs_print_info+0x12/0x12
[ 237.457028][ T4967] ? load_image+0x3b0/0x3b0
[ 237.461565][ T4967] sysfs_create_dir_ns+0x252/0x280
[ 237.466716][ T4967] ? sysfs_warn_dup+0xa0/0xa0
[ 237.471429][ T4967] ? kobject_set_name_vargs+0x5d/0x110
[ 237.476930][ T4967] ? do_raw_spin_unlock+0x11d/0x230
[ 237.482177][ T4967] kobject_add_internal+0x6b8/0xc80
[ 237.487436][ T4967] kobject_init_and_add+0x122/0x190
[ 237.492675][ T4967] ? lockdep_softirqs_off+0x420/0x420
[ 237.498086][ T4967] ? kobject_add+0x210/0x210
[ 237.502711][ T4967] ? __init_swait_queue_head+0xa5/0x150
[ 237.508301][ T4967] gfs2_sys_fs_add+0x234/0x480
[ 237.513109][ T4967] ? gfs2_recover_set+0x240/0x240
[ 237.518201][ T4967] ? snprintf+0xd7/0x120
[ 237.522496][ T4967] ? vscnprintf+0x80/0x80
[ 237.526877][ T4967] gfs2_fill_super+0x126f/0x1f80
[ 237.531877][ T4967] ? gfs2_reconfigure+0xcd0/0xcd0
[ 237.536948][ T4967] ? sb_set_blocksize+0xa5/0xe0
[ 237.541844][ T4967] get_tree_bdev+0x3f1/0x610
[ 237.546482][ T4967] ? gfs2_reconfigure+0xcd0/0xcd0
[ 237.551546][ T4967] gfs2_get_tree+0x4d/0x1e0
[ 237.556097][ T4967] vfs_get_tree+0x88/0x270
[ 237.560557][ T4967] do_new_mount+0x24a/0xa40
[ 237.565106][ T4967] __se_sys_mount+0x2d6/0x3c0
[ 237.569831][ T4967] ? __x64_sys_mount+0xc0/0xc0
[ 237.574627][ T4967] ? lockdep_hardirqs_on+0x94/0x140
[ 237.579862][ T4967] ? __x64_sys_mount+0x1c/0xc0
[ 237.584663][ T4967] do_syscall_64+0x4c/0xa0
[ 237.589136][ T4967] ? clear_bhb_loop+0x60/0xb0
[ 237.593857][ T4967] ? clear_bhb_loop+0x60/0xb0
[ 237.598588][ T4967] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 237.604529][ T4967] RIP: 0033:0x7ff99ff90eea
2026/01/01 13:11:03 executed programs: 390
[ 237.608978][ T4967] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 237.628619][ T4967] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 237.637065][ T4967] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 237.645067][ T4967] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 237.653076][ T4967] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 237.661080][ T4967] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 237.669083][ T4967] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 237.677099][ T4967]
[ 237.681062][ T4967] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 237.694574][ T4967] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 237.858404][ T4966] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 237.865943][ T4966] CPU: 0 PID: 4966 Comm: syz.0.395 Not tainted syzkaller #0
[ 237.873279][ T4966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 237.883358][ T4966] Call Trace:
[ 237.886736][ T4966]
[ 237.889686][ T4966] dump_stack_lvl+0x168/0x22e
[ 237.894417][ T4966] ? show_regs_print_info+0x12/0x12
[ 237.899669][ T4966] ? load_image+0x3b0/0x3b0
[ 237.904223][ T4966] sysfs_create_dir_ns+0x252/0x280
[ 237.909376][ T4966] ? sysfs_warn_dup+0xa0/0xa0
[ 237.914090][ T4966] ? kobject_set_name_vargs+0x5d/0x110
[ 237.919581][ T4966] ? do_raw_spin_unlock+0x11d/0x230
[ 237.924814][ T4966] kobject_add_internal+0x6b8/0xc80
[ 237.930156][ T4966] kobject_init_and_add+0x122/0x190
[ 237.935391][ T4966] ? lockdep_softirqs_off+0x420/0x420
[ 237.940806][ T4966] ? kobject_add+0x210/0x210
[ 237.945437][ T4966] ? __init_swait_queue_head+0xa5/0x150
[ 237.951022][ T4966] gfs2_sys_fs_add+0x234/0x480
[ 237.955844][ T4966] ? gfs2_recover_set+0x240/0x240
[ 237.960918][ T4966] ? snprintf+0xd7/0x120
[ 237.965189][ T4966] ? vscnprintf+0x80/0x80
[ 237.969557][ T4966] gfs2_fill_super+0x126f/0x1f80
[ 237.974550][ T4966] ? gfs2_reconfigure+0xcd0/0xcd0
[ 237.979692][ T4966] ? sb_set_blocksize+0xa5/0xe0
[ 237.984587][ T4966] get_tree_bdev+0x3f1/0x610
[ 237.989210][ T4966] ? gfs2_reconfigure+0xcd0/0xcd0
[ 237.994275][ T4966] gfs2_get_tree+0x4d/0x1e0
[ 237.998830][ T4966] vfs_get_tree+0x88/0x270
[ 238.003306][ T4966] do_new_mount+0x24a/0xa40
[ 238.007899][ T4966] __se_sys_mount+0x2d6/0x3c0
[ 238.012611][ T4966] ? __x64_sys_mount+0xc0/0xc0
[ 238.017439][ T4966] ? lockdep_hardirqs_on+0x94/0x140
[ 238.022751][ T4966] ? __x64_sys_mount+0x1c/0xc0
[ 238.027557][ T4966] do_syscall_64+0x4c/0xa0
[ 238.032042][ T4966] ? clear_bhb_loop+0x60/0xb0
[ 238.036781][ T4966] ? clear_bhb_loop+0x60/0xb0
[ 238.041513][ T4966] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 238.047440][ T4966] RIP: 0033:0x7f7c65d90eea
[ 238.051881][ T4966] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 238.071522][ T4966] RSP: 002b:00007fffbd32b338 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.079990][ T4966] RAX: ffffffffffffffda RBX: 00007fffbd32b3c0 RCX: 00007f7c65d90eea
[ 238.087993][ T4966] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fffbd32b380
[ 238.096004][ T4966] RBP: 0000200000000400 R08: 00007fffbd32b3c0 R09: 0000000002000000
[ 238.104001][ T4966] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 238.112006][ T4966] R13: 00007fffbd32b380 R14: 00000000000125d8 R15: 00002000000022c0
[ 238.120015][ T4966]
[ 238.124150][ T4966] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.137338][ T4966] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.223269][ T4968] loop3: detected capacity change from 0 to 32768
[ 238.350253][ T4968] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 238.359263][ T4968] CPU: 1 PID: 4968 Comm: syz.3.397 Not tainted syzkaller #0
[ 238.366588][ T4968] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 238.376690][ T4968] Call Trace:
[ 238.379986][ T4968]
[ 238.382947][ T4968] dump_stack_lvl+0x168/0x22e
[ 238.387679][ T4968] ? show_regs_print_info+0x12/0x12
[ 238.392930][ T4968] ? load_image+0x3b0/0x3b0
[ 238.397472][ T4968] sysfs_create_dir_ns+0x252/0x280
[ 238.402612][ T4968] ? sysfs_warn_dup+0xa0/0xa0
[ 238.407335][ T4968] ? kobject_set_name_vargs+0x5d/0x110
[ 238.412824][ T4968] ? do_raw_spin_unlock+0x11d/0x230
[ 238.418071][ T4968] kobject_add_internal+0x6b8/0xc80
[ 238.423322][ T4968] kobject_init_and_add+0x122/0x190
[ 238.428598][ T4968] ? lockdep_softirqs_off+0x420/0x420
[ 238.434007][ T4968] ? kobject_add+0x210/0x210
[ 238.438632][ T4968] ? __init_swait_queue_head+0xa5/0x150
[ 238.444247][ T4968] gfs2_sys_fs_add+0x234/0x480
[ 238.449062][ T4968] ? gfs2_recover_set+0x240/0x240
[ 238.454131][ T4968] ? snprintf+0xd7/0x120
[ 238.458412][ T4968] ? vscnprintf+0x80/0x80
[ 238.462796][ T4968] gfs2_fill_super+0x126f/0x1f80
[ 238.467788][ T4968] ? gfs2_reconfigure+0xcd0/0xcd0
[ 238.472855][ T4968] ? sb_set_blocksize+0xa5/0xe0
[ 238.477741][ T4968] get_tree_bdev+0x3f1/0x610
[ 238.482361][ T4968] ? gfs2_reconfigure+0xcd0/0xcd0
[ 238.487450][ T4968] gfs2_get_tree+0x4d/0x1e0
[ 238.491990][ T4968] vfs_get_tree+0x88/0x270
[ 238.496442][ T4968] do_new_mount+0x24a/0xa40
[ 238.500984][ T4968] __se_sys_mount+0x2d6/0x3c0
[ 238.505697][ T4968] ? __x64_sys_mount+0xc0/0xc0
[ 238.510510][ T4968] ? lockdep_hardirqs_on+0x94/0x140
[ 238.515793][ T4968] ? __x64_sys_mount+0x1c/0xc0
[ 238.520595][ T4968] do_syscall_64+0x4c/0xa0
[ 238.525043][ T4968] ? clear_bhb_loop+0x60/0xb0
[ 238.529750][ T4968] ? clear_bhb_loop+0x60/0xb0
[ 238.534467][ T4968] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 238.540390][ T4968] RIP: 0033:0x7f9734390eea
[ 238.544835][ T4968] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 238.564506][ T4968] RSP: 002b:00007ffe79605438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.572951][ T4968] RAX: ffffffffffffffda RBX: 00007ffe796054c0 RCX: 00007f9734390eea
[ 238.580962][ T4968] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe79605480
[ 238.588972][ T4968] RBP: 0000200000000400 R08: 00007ffe796054c0 R09: 0000000002000000
[ 238.596984][ T4968] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 238.604981][ T4968] R13: 00007ffe79605480 R14: 00000000000125d8 R15: 00002000000022c0
[ 238.612996][ T4968]
[ 238.616136][ T4968] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.629328][ T4968] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.763702][ T4393] Bluetooth: hci5: command 0x0409 tx timeout
[ 240.842458][ T4393] Bluetooth: hci5: command 0x041b tx timeout
[ 241.316967][ T4987] loop4: detected capacity change from 0 to 32768
[ 241.362615][ T4987] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 241.370136][ T4987] CPU: 1 PID: 4987 Comm: syz.4.412 Not tainted syzkaller #0
[ 241.377455][ T4987] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 241.387531][ T4987] Call Trace:
[ 241.390827][ T4987]
[ 241.393791][ T4987] dump_stack_lvl+0x168/0x22e
[ 241.398542][ T4987] ? show_regs_print_info+0x12/0x12
[ 241.403835][ T4987] ? load_image+0x3b0/0x3b0
[ 241.408391][ T4987] sysfs_create_dir_ns+0x252/0x280
[ 241.413538][ T4987] ? sysfs_warn_dup+0xa0/0xa0
[ 241.418238][ T4987] ? kobject_set_name_vargs+0x5d/0x110
[ 241.423739][ T4987] ? do_raw_spin_unlock+0x11d/0x230
[ 241.428998][ T4987] kobject_add_internal+0x6b8/0xc80
[ 241.434237][ T4987] kobject_init_and_add+0x122/0x190
[ 241.439470][ T4987] ? lockdep_softirqs_off+0x420/0x420
[ 241.444877][ T4987] ? kobject_add+0x210/0x210
[ 241.449497][ T4987] ? __init_swait_queue_head+0xa5/0x150
[ 241.455078][ T4987] gfs2_sys_fs_add+0x234/0x480
[ 241.459873][ T4987] ? gfs2_recover_set+0x240/0x240
[ 241.464962][ T4987] ? snprintf+0xd7/0x120
[ 241.469247][ T4987] ? vscnprintf+0x80/0x80
[ 241.473622][ T4987] gfs2_fill_super+0x126f/0x1f80
[ 241.478606][ T4987] ? gfs2_reconfigure+0xcd0/0xcd0
[ 241.483681][ T4987] ? sb_set_blocksize+0xa5/0xe0
[ 241.488589][ T4987] get_tree_bdev+0x3f1/0x610
[ 241.493237][ T4987] ? gfs2_reconfigure+0xcd0/0xcd0
[ 241.498297][ T4987] gfs2_get_tree+0x4d/0x1e0
[ 241.502843][ T4987] vfs_get_tree+0x88/0x270
[ 241.507311][ T4987] do_new_mount+0x24a/0xa40
[ 241.511850][ T4987] __se_sys_mount+0x2d6/0x3c0
[ 241.516566][ T4987] ? __x64_sys_mount+0xc0/0xc0
[ 241.521365][ T4987] ? lockdep_hardirqs_on+0x94/0x140
[ 241.526588][ T4987] ? __x64_sys_mount+0x1c/0xc0
[ 241.531383][ T4987] do_syscall_64+0x4c/0xa0
[ 241.535832][ T4987] ? clear_bhb_loop+0x60/0xb0
[ 241.540542][ T4987] ? clear_bhb_loop+0x60/0xb0
[ 241.545254][ T4987] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 241.551199][ T4987] RIP: 0033:0x7f144ab90eea
[ 241.555653][ T4987] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 241.575292][ T4987] RSP: 002b:00007ffe72d43bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 241.583743][ T4987] RAX: ffffffffffffffda RBX: 00007ffe72d43c80 RCX: 00007f144ab90eea
[ 241.591746][ T4987] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe72d43c40
[ 241.599757][ T4987] RBP: 0000200000000400 R08: 00007ffe72d43c80 R09: 0000000002000000
[ 241.607757][ T4987] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 241.615821][ T4987] R13: 00007ffe72d43c40 R14: 00000000000125d8 R15: 00002000000022c0
[ 241.623843][ T4987]
[ 241.627958][ T4987] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 241.641154][ T4987] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/01 13:11:08 executed programs: 409
[ 242.627875][ T4604] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 242.993531][ T4995] loop4: detected capacity change from 0 to 32768
[ 243.001209][ T4393] Bluetooth: hci5: command 0x040f tx timeout
[ 243.446310][ T4995] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.453797][ T4995] CPU: 1 PID: 4995 Comm: syz.4.420 Not tainted syzkaller #0
[ 243.461119][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 243.471209][ T4995] Call Trace:
[ 243.474507][ T4995]
[ 243.477518][ T4995] dump_stack_lvl+0x168/0x22e
[ 243.482242][ T4995] ? show_regs_print_info+0x12/0x12
[ 243.487499][ T4995] ? load_image+0x3b0/0x3b0
[ 243.492059][ T4995] sysfs_create_dir_ns+0x252/0x280
[ 243.497204][ T4995] ? sysfs_warn_dup+0xa0/0xa0
[ 243.501917][ T4995] ? kobject_set_name_vargs+0x5d/0x110
[ 243.507413][ T4995] ? do_raw_spin_unlock+0x11d/0x230
[ 243.512659][ T4995] kobject_add_internal+0x6b8/0xc80
[ 243.517899][ T4995] kobject_init_and_add+0x122/0x190
[ 243.523133][ T4995] ? lockdep_softirqs_off+0x420/0x420
[ 243.528539][ T4995] ? kobject_add+0x210/0x210
[ 243.533164][ T4995] ? __init_swait_queue_head+0xa5/0x150
[ 243.538762][ T4995] gfs2_sys_fs_add+0x234/0x480
[ 243.543554][ T4995] ? gfs2_recover_set+0x240/0x240
[ 243.548594][ T4995] ? snprintf+0xd7/0x120
[ 243.552858][ T4995] ? vscnprintf+0x80/0x80
[ 243.557237][ T4995] gfs2_fill_super+0x126f/0x1f80
[ 243.562204][ T4995] ? gfs2_reconfigure+0xcd0/0xcd0
[ 243.567429][ T4995] ? sb_set_blocksize+0xa5/0xe0
[ 243.572293][ T4995] get_tree_bdev+0x3f1/0x610
[ 243.576896][ T4995] ? gfs2_reconfigure+0xcd0/0xcd0
[ 243.581945][ T4995] gfs2_get_tree+0x4d/0x1e0
[ 243.586489][ T4995] vfs_get_tree+0x88/0x270
[ 243.590923][ T4995] do_new_mount+0x24a/0xa40
[ 243.595462][ T4995] __se_sys_mount+0x2d6/0x3c0
[ 243.600166][ T4995] ? __x64_sys_mount+0xc0/0xc0
[ 243.605047][ T4995] ? lockdep_hardirqs_on+0x94/0x140
[ 243.610268][ T4995] ? __x64_sys_mount+0x1c/0xc0
[ 243.615065][ T4995] do_syscall_64+0x4c/0xa0
[ 243.619512][ T4995] ? clear_bhb_loop+0x60/0xb0
[ 243.624210][ T4995] ? clear_bhb_loop+0x60/0xb0
[ 243.628908][ T4995] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 243.634830][ T4995] RIP: 0033:0x7f144ab90eea
[ 243.639274][ T4995] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 243.658909][ T4995] RSP: 002b:00007ffe72d43bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 243.667352][ T4995] RAX: ffffffffffffffda RBX: 00007ffe72d43c80 RCX: 00007f144ab90eea
[ 243.675348][ T4995] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe72d43c40
[ 243.683343][ T4995] RBP: 0000200000000400 R08: 00007ffe72d43c80 R09: 0000000002000000
[ 243.691327][ T4995] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 243.699340][ T4995] R13: 00007ffe72d43c40 R14: 00000000000125d8 R15: 00002000000022c0
[ 243.707352][ T4995]
[ 243.711861][ T4995] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 243.725030][ T4995] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.972836][ T5003] loop3: detected capacity change from 0 to 32768
[ 245.147770][ T4401] Bluetooth: hci5: command 0x0419 tx timeout
[ 245.193572][ T5003] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.201563][ T5003] CPU: 1 PID: 5003 Comm: syz.3.424 Not tainted syzkaller #0
[ 245.208883][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 245.218964][ T5003] Call Trace:
[ 245.222270][ T5003]
[ 245.225238][ T5003] dump_stack_lvl+0x168/0x22e
[ 245.229975][ T5003] ? show_regs_print_info+0x12/0x12
[ 245.235229][ T5003] ? load_image+0x3b0/0x3b0
[ 245.239776][ T5003] sysfs_create_dir_ns+0x252/0x280
[ 245.244926][ T5003] ? sysfs_warn_dup+0xa0/0xa0
[ 245.249644][ T5003] ? kobject_set_name_vargs+0x5d/0x110
[ 245.255152][ T5003] ? do_raw_spin_unlock+0x11d/0x230
[ 245.260412][ T5003] kobject_add_internal+0x6b8/0xc80
[ 245.265654][ T5003] kobject_init_and_add+0x122/0x190
[ 245.270890][ T5003] ? lockdep_softirqs_off+0x420/0x420
[ 245.276342][ T5003] ? kobject_add+0x210/0x210
[ 245.280971][ T5003] ? __init_swait_queue_head+0xa5/0x150
[ 245.286571][ T5003] gfs2_sys_fs_add+0x234/0x480
[ 245.291387][ T5003] ? gfs2_recover_set+0x240/0x240
[ 245.296452][ T5003] ? snprintf+0xd7/0x120
[ 245.300727][ T5003] ? vscnprintf+0x80/0x80
[ 245.305111][ T5003] gfs2_fill_super+0x126f/0x1f80
[ 245.310127][ T5003] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.315210][ T5003] ? sb_set_blocksize+0xa5/0xe0
[ 245.320094][ T5003] get_tree_bdev+0x3f1/0x610
[ 245.324721][ T5003] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.329814][ T5003] gfs2_get_tree+0x4d/0x1e0
[ 245.334369][ T5003] vfs_get_tree+0x88/0x270
[ 245.338814][ T5003] do_new_mount+0x24a/0xa40
[ 245.343361][ T5003] __se_sys_mount+0x2d6/0x3c0
[ 245.348064][ T5003] ? __x64_sys_mount+0xc0/0xc0
[ 245.352869][ T5003] ? lockdep_hardirqs_on+0x94/0x140
[ 245.358146][ T5003] ? __x64_sys_mount+0x1c/0xc0
[ 245.362963][ T5003] do_syscall_64+0x4c/0xa0
[ 245.367412][ T5003] ? clear_bhb_loop+0x60/0xb0
[ 245.372122][ T5003] ? clear_bhb_loop+0x60/0xb0
[ 245.376837][ T5003] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 245.382764][ T5003] RIP: 0033:0x7f9734390eea
[ 245.387212][ T5003] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 245.406850][ T5003] RSP: 002b:00007ffe79605438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.415313][ T5003] RAX: ffffffffffffffda RBX: 00007ffe796054c0 RCX: 00007f9734390eea
[ 245.423318][ T5003] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe79605480
[ 245.431313][ T5003] RBP: 0000200000000400 R08: 00007ffe796054c0 R09: 0000000002000000
[ 245.439357][ T5003] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 245.447360][ T5003] R13: 00007ffe79605480 R14: 00000000000125d8 R15: 00002000000022c0
[ 245.455370][ T5003]
[ 245.459241][ T5003] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.472405][ T5003] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.490949][ T5002] loop2: detected capacity change from 0 to 32768
[ 245.509470][ T5002] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.517201][ T5002] CPU: 1 PID: 5002 Comm: syz.2.427 Not tainted syzkaller #0
[ 245.524516][ T5002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 245.534597][ T5002] Call Trace:
[ 245.537909][ T5002]
[ 245.540864][ T5002] dump_stack_lvl+0x168/0x22e
[ 245.545582][ T5002] ? show_regs_print_info+0x12/0x12
[ 245.550842][ T5002] ? load_image+0x3b0/0x3b0
[ 245.555390][ T5002] sysfs_create_dir_ns+0x252/0x280
[ 245.560550][ T5002] ? sysfs_warn_dup+0xa0/0xa0
[ 245.565275][ T5002] ? kobject_set_name_vargs+0x5d/0x110
[ 245.570769][ T5002] ? do_raw_spin_unlock+0x11d/0x230
[ 245.576000][ T5002] kobject_add_internal+0x6b8/0xc80
[ 245.581229][ T5002] kobject_init_and_add+0x122/0x190
[ 245.586459][ T5002] ? lockdep_softirqs_off+0x420/0x420
[ 245.591955][ T5002] ? kobject_add+0x210/0x210
[ 245.596583][ T5002] ? __init_swait_queue_head+0xa5/0x150
[ 245.602174][ T5002] gfs2_sys_fs_add+0x234/0x480
[ 245.606986][ T5002] ? gfs2_recover_set+0x240/0x240
[ 245.612065][ T5002] ? snprintf+0xd7/0x120
[ 245.616340][ T5002] ? vscnprintf+0x80/0x80
[ 245.620709][ T5002] gfs2_fill_super+0x126f/0x1f80
[ 245.625710][ T5002] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.630790][ T5002] ? sb_set_blocksize+0xa5/0xe0
[ 245.635678][ T5002] get_tree_bdev+0x3f1/0x610
[ 245.640345][ T5002] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.645410][ T5002] gfs2_get_tree+0x4d/0x1e0
[ 245.649987][ T5002] vfs_get_tree+0x88/0x270
[ 245.654442][ T5002] do_new_mount+0x24a/0xa40
[ 245.658983][ T5002] __se_sys_mount+0x2d6/0x3c0
[ 245.663786][ T5002] ? __x64_sys_mount+0xc0/0xc0
[ 245.668617][ T5002] ? lockdep_hardirqs_on+0x94/0x140
[ 245.673849][ T5002] ? __x64_sys_mount+0x1c/0xc0
[ 245.678657][ T5002] do_syscall_64+0x4c/0xa0
[ 245.683104][ T5002] ? clear_bhb_loop+0x60/0xb0
[ 245.687815][ T5002] ? clear_bhb_loop+0x60/0xb0
[ 245.692531][ T5002] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 245.698461][ T5002] RIP: 0033:0x7ff99ff90eea
[ 245.702903][ T5002] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 245.722536][ T5002] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.730979][ T5002] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 245.738981][ T5002] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 245.746979][ T5002] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 245.754975][ T5002] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 245.762980][ T5002] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 245.770999][ T5002]
[ 245.775377][ T5002] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.788684][ T5002] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 246.670615][ T5010] loop0: detected capacity change from 0 to 32768
[ 246.850328][ T5010] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 246.857803][ T5010] CPU: 1 PID: 5010 Comm: syz.0.432 Not tainted syzkaller #0
[ 246.865108][ T5010] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 246.875274][ T5010] Call Trace:
[ 246.878581][ T5010]
[ 246.881564][ T5010] dump_stack_lvl+0x168/0x22e
[ 246.886285][ T5010] ? show_regs_print_info+0x12/0x12
[ 246.891518][ T5010] ? load_image+0x3b0/0x3b0
[ 246.896075][ T5010] sysfs_create_dir_ns+0x252/0x280
[ 246.901235][ T5010] ? sysfs_warn_dup+0xa0/0xa0
[ 246.905955][ T5010] ? kobject_set_name_vargs+0x5d/0x110
[ 246.911445][ T5010] ? do_raw_spin_unlock+0x11d/0x230
[ 246.916685][ T5010] kobject_add_internal+0x6b8/0xc80
[ 246.921932][ T5010] kobject_init_and_add+0x122/0x190
[ 246.927190][ T5010] ? lockdep_softirqs_off+0x420/0x420
[ 246.932599][ T5010] ? kobject_add+0x210/0x210
[ 246.937227][ T5010] ? __init_swait_queue_head+0xa5/0x150
[ 246.942820][ T5010] gfs2_sys_fs_add+0x234/0x480
[ 246.947609][ T5010] ? gfs2_recover_set+0x240/0x240
[ 246.952664][ T5010] ? snprintf+0xd7/0x120
[ 246.956929][ T5010] ? vscnprintf+0x80/0x80
[ 246.961291][ T5010] gfs2_fill_super+0x126f/0x1f80
[ 246.966269][ T5010] ? gfs2_reconfigure+0xcd0/0xcd0
[ 246.971344][ T5010] ? sb_set_blocksize+0xa5/0xe0
[ 246.976222][ T5010] get_tree_bdev+0x3f1/0x610
[ 246.981127][ T5010] ? gfs2_reconfigure+0xcd0/0xcd0
[ 246.986190][ T5010] gfs2_get_tree+0x4d/0x1e0
[ 246.990726][ T5010] vfs_get_tree+0x88/0x270
[ 246.995291][ T5010] do_new_mount+0x24a/0xa40
[ 246.999828][ T5010] __se_sys_mount+0x2d6/0x3c0
[ 247.004537][ T5010] ? __x64_sys_mount+0xc0/0xc0
[ 247.009328][ T5010] ? lockdep_hardirqs_on+0x94/0x140
[ 247.014558][ T5010] ? __x64_sys_mount+0x1c/0xc0
[ 247.019372][ T5010] do_syscall_64+0x4c/0xa0
[ 247.023817][ T5010] ? clear_bhb_loop+0x60/0xb0
[ 247.028528][ T5010] ? clear_bhb_loop+0x60/0xb0
[ 247.033248][ T5010] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 247.039177][ T5010] RIP: 0033:0x7f7c65d90eea
[ 247.043629][ T5010] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 247.063265][ T5010] RSP: 002b:00007fffbd32b338 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.071703][ T5010] RAX: ffffffffffffffda RBX: 00007fffbd32b3c0 RCX: 00007f7c65d90eea
[ 247.079715][ T5010] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fffbd32b380
[ 247.087712][ T5010] RBP: 0000200000000400 R08: 00007fffbd32b3c0 R09: 0000000002000000
[ 247.095792][ T5010] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 247.103786][ T5010] R13: 00007fffbd32b380 R14: 00000000000125d8 R15: 00002000000022c0
[ 247.111805][ T5010]
[ 247.116098][ T5010] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 247.129472][ T5010] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 247.522002][ T5015] loop2: detected capacity change from 0 to 32768
[ 247.585135][ T5014] loop3: detected capacity change from 0 to 32768
[ 247.622680][ T5015] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.630155][ T5015] CPU: 1 PID: 5015 Comm: syz.2.434 Not tainted syzkaller #0
[ 247.637468][ T5015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 247.647551][ T5015] Call Trace:
[ 247.650849][ T5015]
[ 247.653804][ T5015] dump_stack_lvl+0x168/0x22e
[ 247.658524][ T5015] ? show_regs_print_info+0x12/0x12
[ 247.663760][ T5015] ? load_image+0x3b0/0x3b0
[ 247.668310][ T5015] sysfs_create_dir_ns+0x252/0x280
[ 247.673453][ T5015] ? sysfs_warn_dup+0xa0/0xa0
[ 247.678183][ T5015] ? kobject_set_name_vargs+0x5d/0x110
[ 247.683678][ T5015] ? do_raw_spin_unlock+0x11d/0x230
[ 247.688943][ T5015] kobject_add_internal+0x6b8/0xc80
[ 247.694182][ T5015] kobject_init_and_add+0x122/0x190
[ 247.699455][ T5015] ? lockdep_softirqs_off+0x420/0x420
[ 247.704903][ T5015] ? kobject_add+0x210/0x210
[ 247.709531][ T5015] ? __init_swait_queue_head+0xa5/0x150
[ 247.715128][ T5015] gfs2_sys_fs_add+0x234/0x480
[ 247.719934][ T5015] ? gfs2_recover_set+0x240/0x240
[ 247.725016][ T5015] ? snprintf+0xd7/0x120
[ 247.729306][ T5015] ? vscnprintf+0x80/0x80
[ 247.733694][ T5015] gfs2_fill_super+0x126f/0x1f80
[ 247.738702][ T5015] ? gfs2_reconfigure+0xcd0/0xcd0
[ 247.743784][ T5015] ? sb_set_blocksize+0xa5/0xe0
[ 247.748688][ T5015] get_tree_bdev+0x3f1/0x610
[ 247.753330][ T5015] ? gfs2_reconfigure+0xcd0/0xcd0
[ 247.758417][ T5015] gfs2_get_tree+0x4d/0x1e0
[ 247.762968][ T5015] vfs_get_tree+0x88/0x270
[ 247.767440][ T5015] do_new_mount+0x24a/0xa40
[ 247.771995][ T5015] __se_sys_mount+0x2d6/0x3c0
[ 247.776713][ T5015] ? __x64_sys_mount+0xc0/0xc0
[ 247.781510][ T5015] ? lockdep_hardirqs_on+0x94/0x140
[ 247.786737][ T5015] ? __x64_sys_mount+0x1c/0xc0
[ 247.791543][ T5015] do_syscall_64+0x4c/0xa0
[ 247.796011][ T5015] ? clear_bhb_loop+0x60/0xb0
[ 247.800754][ T5015] ? clear_bhb_loop+0x60/0xb0
[ 247.805461][ T5015] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 247.811387][ T5015] RIP: 0033:0x7ff99ff90eea
[ 247.815834][ T5015] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 247.835556][ T5015] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.843998][ T5015] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 247.851995][ T5015] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 247.859997][ T5015] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 247.868000][ T5015] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 247.876009][ T5015] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 247.884029][ T5015]
[ 247.888372][ T5015] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 247.902044][ T5015] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 247.909227][ T5014] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.916687][ T5014] CPU: 1 PID: 5014 Comm: syz.3.435 Not tainted syzkaller #0
[ 247.924005][ T5014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 247.934092][ T5014] Call Trace:
[ 247.937388][ T5014]
[ 247.940342][ T5014] dump_stack_lvl+0x168/0x22e
[ 247.945061][ T5014] ? show_regs_print_info+0x12/0x12
[ 247.950306][ T5014] ? load_image+0x3b0/0x3b0
[ 247.954900][ T5014] sysfs_create_dir_ns+0x252/0x280
[ 247.960047][ T5014] ? sysfs_warn_dup+0xa0/0xa0
[ 247.964758][ T5014] ? kobject_set_name_vargs+0x5d/0x110
[ 247.970260][ T5014] ? do_raw_spin_unlock+0x11d/0x230
[ 247.975510][ T5014] kobject_add_internal+0x6b8/0xc80
[ 247.980759][ T5014] kobject_init_and_add+0x122/0x190
[ 247.985998][ T5014] ? lockdep_softirqs_off+0x420/0x420
[ 247.991419][ T5014] ? kobject_add+0x210/0x210
[ 247.996042][ T5014] ? __init_swait_queue_head+0xa5/0x150
[ 248.001621][ T5014] gfs2_sys_fs_add+0x234/0x480
[ 248.006422][ T5014] ? gfs2_recover_set+0x240/0x240
[ 248.011503][ T5014] ? snprintf+0xd7/0x120
[ 248.015782][ T5014] ? vscnprintf+0x80/0x80
[ 248.020147][ T5014] gfs2_fill_super+0x126f/0x1f80
[ 248.025129][ T5014] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.030199][ T5014] ? sb_set_blocksize+0xa5/0xe0
[ 248.035088][ T5014] get_tree_bdev+0x3f1/0x610
[ 248.039718][ T5014] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.044820][ T5014] gfs2_get_tree+0x4d/0x1e0
[ 248.049367][ T5014] vfs_get_tree+0x88/0x270
[ 248.053826][ T5014] do_new_mount+0x24a/0xa40
[ 248.058382][ T5014] __se_sys_mount+0x2d6/0x3c0
[ 248.063090][ T5014] ? __x64_sys_mount+0xc0/0xc0
[ 248.067880][ T5014] ? lockdep_hardirqs_on+0x94/0x140
[ 248.073107][ T5014] ? __x64_sys_mount+0x1c/0xc0
[ 248.077897][ T5014] do_syscall_64+0x4c/0xa0
[ 248.082363][ T5014] ? clear_bhb_loop+0x60/0xb0
[ 248.087066][ T5014] ? clear_bhb_loop+0x60/0xb0
[ 248.091780][ T5014] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 248.097701][ T5014] RIP: 0033:0x7f9734390eea
[ 248.102149][ T5014] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 248.121798][ T5014] RSP: 002b:00007ffe79605438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
2026/01/01 13:11:13 executed programs: 429
[ 248.130243][ T5014] RAX: ffffffffffffffda RBX: 00007ffe796054c0 RCX: 00007f9734390eea
[ 248.138254][ T5014] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe79605480
[ 248.146242][ T5014] RBP: 0000200000000400 R08: 00007ffe796054c0 R09: 0000000002000000
[ 248.154241][ T5014] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.162226][ T5014] R13: 00007ffe79605480 R14: 00000000000125d8 R15: 00002000000022c0
[ 248.170231][ T5014]
[ 248.174068][ T5014] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.187220][ T5014] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.532990][ T5017] loop0: detected capacity change from 0 to 32768
[ 248.636496][ T5017] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.643955][ T5017] CPU: 1 PID: 5017 Comm: syz.0.437 Not tainted syzkaller #0
[ 248.651273][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 248.661401][ T5017] Call Trace:
[ 248.664698][ T5017]
[ 248.667649][ T5017] dump_stack_lvl+0x168/0x22e
[ 248.672370][ T5017] ? show_regs_print_info+0x12/0x12
[ 248.677600][ T5017] ? load_image+0x3b0/0x3b0
[ 248.682148][ T5017] sysfs_create_dir_ns+0x252/0x280
[ 248.687287][ T5017] ? sysfs_warn_dup+0xa0/0xa0
[ 248.691989][ T5017] ? kobject_set_name_vargs+0x5d/0x110
[ 248.697469][ T5017] ? do_raw_spin_unlock+0x11d/0x230
[ 248.702710][ T5017] kobject_add_internal+0x6b8/0xc80
[ 248.707939][ T5017] kobject_init_and_add+0x122/0x190
[ 248.713166][ T5017] ? lockdep_softirqs_off+0x420/0x420
[ 248.718577][ T5017] ? kobject_add+0x210/0x210
[ 248.723201][ T5017] ? __init_swait_queue_head+0xa5/0x150
[ 248.728787][ T5017] gfs2_sys_fs_add+0x234/0x480
[ 248.733590][ T5017] ? gfs2_recover_set+0x240/0x240
[ 248.738645][ T5017] ? snprintf+0xd7/0x120
[ 248.742918][ T5017] ? vscnprintf+0x80/0x80
[ 248.747284][ T5017] gfs2_fill_super+0x126f/0x1f80
[ 248.752286][ T5017] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.757370][ T5017] ? sb_set_blocksize+0xa5/0xe0
[ 248.762253][ T5017] get_tree_bdev+0x3f1/0x610
[ 248.766871][ T5017] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.771934][ T5017] gfs2_get_tree+0x4d/0x1e0
[ 248.776119][ T5018] loop4: detected capacity change from 0 to 32768
[ 248.776477][ T5017] vfs_get_tree+0x88/0x270
[ 248.787346][ T5017] do_new_mount+0x24a/0xa40
[ 248.790461][ T5018] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.791876][ T5017] __se_sys_mount+0x2d6/0x3c0
[ 248.803945][ T5017] ? __x64_sys_mount+0xc0/0xc0
[ 248.808724][ T5017] ? lockdep_hardirqs_on+0x94/0x140
[ 248.813936][ T5017] ? __x64_sys_mount+0x1c/0xc0
[ 248.818716][ T5017] do_syscall_64+0x4c/0xa0
[ 248.823155][ T5017] ? clear_bhb_loop+0x60/0xb0
[ 248.827856][ T5017] ? clear_bhb_loop+0x60/0xb0
[ 248.832551][ T5017] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 248.838462][ T5017] RIP: 0033:0x7f7c65d90eea
[ 248.842894][ T5017] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 248.862510][ T5017] RSP: 002b:00007fffbd32b338 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.870940][ T5017] RAX: ffffffffffffffda RBX: 00007fffbd32b3c0 RCX: 00007f7c65d90eea
[ 248.878952][ T5017] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fffbd32b380
[ 248.886959][ T5017] RBP: 0000200000000400 R08: 00007fffbd32b3c0 R09: 0000000002000000
[ 248.894961][ T5017] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 248.902947][ T5017] R13: 00007fffbd32b380 R14: 00000000000125d8 R15: 00002000000022c0
[ 248.910948][ T5017]
[ 248.914343][ T5018] CPU: 0 PID: 5018 Comm: syz.4.438 Not tainted syzkaller #0
[ 248.915456][ T5017] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.921644][ T5018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 248.921656][ T5018] Call Trace:
[ 248.921663][ T5018]
[ 248.921671][ T5018] dump_stack_lvl+0x168/0x22e
[ 248.934825][ T5017] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.944840][ T5018] ? show_regs_print_info+0x12/0x12
[ 248.967503][ T5018] ? load_image+0x3b0/0x3b0
[ 248.972036][ T5018] sysfs_create_dir_ns+0x252/0x280
[ 248.977177][ T5018] ? sysfs_warn_dup+0xa0/0xa0
[ 248.981871][ T5018] ? kobject_set_name_vargs+0x5d/0x110
[ 248.987343][ T5018] ? do_raw_spin_unlock+0x11d/0x230
[ 248.992581][ T5018] kobject_add_internal+0x6b8/0xc80
[ 248.997797][ T5018] kobject_init_and_add+0x122/0x190
[ 249.003005][ T5018] ? lockdep_softirqs_off+0x420/0x420
[ 249.008412][ T5018] ? kobject_add+0x210/0x210
[ 249.013030][ T5018] ? __init_swait_queue_head+0xa5/0x150
[ 249.018606][ T5018] gfs2_sys_fs_add+0x234/0x480
[ 249.023405][ T5018] ? gfs2_recover_set+0x240/0x240
[ 249.028474][ T5018] ? snprintf+0xd7/0x120
[ 249.032759][ T5018] ? vscnprintf+0x80/0x80
[ 249.037114][ T5018] gfs2_fill_super+0x126f/0x1f80
[ 249.042116][ T5018] ? gfs2_reconfigure+0xcd0/0xcd0
[ 249.047218][ T5018] ? sb_set_blocksize+0xa5/0xe0
[ 249.052112][ T5018] get_tree_bdev+0x3f1/0x610
[ 249.056734][ T5018] ? gfs2_reconfigure+0xcd0/0xcd0
[ 249.061802][ T5018] gfs2_get_tree+0x4d/0x1e0
[ 249.066348][ T5018] vfs_get_tree+0x88/0x270
[ 249.070812][ T5018] do_new_mount+0x24a/0xa40
[ 249.075348][ T5018] __se_sys_mount+0x2d6/0x3c0
[ 249.080056][ T5018] ? __x64_sys_mount+0xc0/0xc0
[ 249.084849][ T5018] ? lockdep_hardirqs_on+0x94/0x140
[ 249.090069][ T5018] ? __x64_sys_mount+0x1c/0xc0
[ 249.094850][ T5018] do_syscall_64+0x4c/0xa0
[ 249.099285][ T5018] ? clear_bhb_loop+0x60/0xb0
[ 249.103986][ T5018] ? clear_bhb_loop+0x60/0xb0
[ 249.108687][ T5018] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 249.114598][ T5018] RIP: 0033:0x7f144ab90eea
[ 249.119111][ T5018] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 249.138725][ T5018] RSP: 002b:00007ffe72d43bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.147151][ T5018] RAX: ffffffffffffffda RBX: 00007ffe72d43c80 RCX: 00007f144ab90eea
[ 249.155152][ T5018] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe72d43c40
[ 249.163141][ T5018] RBP: 0000200000000400 R08: 00007ffe72d43c80 R09: 0000000002000000
[ 249.171129][ T5018] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 249.179118][ T5018] R13: 00007ffe72d43c40 R14: 00000000000125d8 R15: 00002000000022c0
[ 249.187120][ T5018]
[ 249.191135][ T5018] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.204331][ T5018] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.245710][ T4543] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 249.604447][ T5019] loop2: detected capacity change from 0 to 32768
[ 249.625796][ T5019] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.634065][ T5019] CPU: 0 PID: 5019 Comm: syz.2.439 Not tainted syzkaller #0
[ 249.641383][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 249.651486][ T5019] Call Trace:
[ 249.654807][ T5019]
[ 249.657760][ T5019] dump_stack_lvl+0x168/0x22e
[ 249.662475][ T5019] ? show_regs_print_info+0x12/0x12
[ 249.667708][ T5019] ? load_image+0x3b0/0x3b0
[ 249.672258][ T5019] sysfs_create_dir_ns+0x252/0x280
[ 249.677401][ T5019] ? sysfs_warn_dup+0xa0/0xa0
[ 249.682113][ T5019] ? kobject_set_name_vargs+0x5d/0x110
[ 249.687600][ T5019] ? do_raw_spin_unlock+0x11d/0x230
[ 249.692837][ T5019] kobject_add_internal+0x6b8/0xc80
[ 249.698096][ T5019] kobject_init_and_add+0x122/0x190
[ 249.703319][ T5019] ? lockdep_softirqs_off+0x420/0x420
[ 249.708723][ T5019] ? kobject_add+0x210/0x210
[ 249.713340][ T5019] ? __init_swait_queue_head+0xa5/0x150
[ 249.718917][ T5019] gfs2_sys_fs_add+0x234/0x480
[ 249.723738][ T5019] ? gfs2_recover_set+0x240/0x240
[ 249.728796][ T5019] ? snprintf+0xd7/0x120
[ 249.733070][ T5019] ? vscnprintf+0x80/0x80
[ 249.737438][ T5019] gfs2_fill_super+0x126f/0x1f80
[ 249.742441][ T5019] ? gfs2_reconfigure+0xcd0/0xcd0
[ 249.747507][ T5019] ? sb_set_blocksize+0xa5/0xe0
[ 249.752403][ T5019] get_tree_bdev+0x3f1/0x610
[ 249.757069][ T5019] ? gfs2_reconfigure+0xcd0/0xcd0
[ 249.762128][ T5019] gfs2_get_tree+0x4d/0x1e0
[ 249.766676][ T5019] vfs_get_tree+0x88/0x270
[ 249.771128][ T5019] do_new_mount+0x24a/0xa40
[ 249.775679][ T5019] __se_sys_mount+0x2d6/0x3c0
[ 249.780383][ T5019] ? __x64_sys_mount+0xc0/0xc0
[ 249.785194][ T5019] ? lockdep_hardirqs_on+0x94/0x140
[ 249.790426][ T5019] ? __x64_sys_mount+0x1c/0xc0
[ 249.795220][ T5019] do_syscall_64+0x4c/0xa0
[ 249.799676][ T5019] ? clear_bhb_loop+0x60/0xb0
[ 249.804393][ T5019] ? clear_bhb_loop+0x60/0xb0
[ 249.809099][ T5019] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 249.815023][ T5019] RIP: 0033:0x7ff99ff90eea
[ 249.819461][ T5019] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 249.839094][ T5019] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.847540][ T5019] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 249.855544][ T5019] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 249.863550][ T5019] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 249.871549][ T5019] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 249.879545][ T5019] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 249.887565][ T5019]
[ 249.891546][ T5019] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.904918][ T5019] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.484824][ T5021] loop3: detected capacity change from 0 to 32768
[ 250.492791][ T5023] loop0: detected capacity change from 0 to 32768
[ 250.511507][ T5021] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.519103][ T5021] CPU: 0 PID: 5021 Comm: syz.3.440 Not tainted syzkaller #0
[ 250.526438][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 250.536559][ T5021] Call Trace:
[ 250.539866][ T5021]
[ 250.542826][ T5021] dump_stack_lvl+0x168/0x22e
[ 250.547559][ T5021] ? show_regs_print_info+0x12/0x12
[ 250.552796][ T5021] ? load_image+0x3b0/0x3b0
[ 250.557341][ T5021] sysfs_create_dir_ns+0x252/0x280
[ 250.562484][ T5021] ? sysfs_warn_dup+0xa0/0xa0
[ 250.567199][ T5021] ? kobject_set_name_vargs+0x5d/0x110
[ 250.572691][ T5021] ? do_raw_spin_unlock+0x11d/0x230
[ 250.577943][ T5021] kobject_add_internal+0x6b8/0xc80
[ 250.583190][ T5021] kobject_init_and_add+0x122/0x190
[ 250.588417][ T5021] ? lockdep_softirqs_off+0x420/0x420
[ 250.593840][ T5021] ? kobject_add+0x210/0x210
[ 250.598469][ T5021] ? __init_swait_queue_head+0xa5/0x150
[ 250.604054][ T5021] gfs2_sys_fs_add+0x234/0x480
[ 250.608857][ T5021] ? gfs2_recover_set+0x240/0x240
[ 250.613929][ T5021] ? snprintf+0xd7/0x120
[ 250.618212][ T5021] ? vscnprintf+0x80/0x80
[ 250.622593][ T5021] gfs2_fill_super+0x126f/0x1f80
[ 250.624586][ T5024] loop4: detected capacity change from 0 to 32768
[ 250.627575][ T5021] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.627647][ T5021] ? sb_set_blocksize+0xa5/0xe0
[ 250.643967][ T5021] get_tree_bdev+0x3f1/0x610
[ 250.648600][ T5021] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.653689][ T5021] gfs2_get_tree+0x4d/0x1e0
[ 250.658242][ T5021] vfs_get_tree+0x88/0x270
[ 250.662700][ T5021] do_new_mount+0x24a/0xa40
[ 250.665319][ T5024] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.667235][ T5021] __se_sys_mount+0x2d6/0x3c0
[ 250.667267][ T5021] ? __x64_sys_mount+0xc0/0xc0
[ 250.684141][ T5021] ? lockdep_hardirqs_on+0x94/0x140
[ 250.689362][ T5021] ? __x64_sys_mount+0x1c/0xc0
[ 250.694153][ T5021] do_syscall_64+0x4c/0xa0
[ 250.698602][ T5021] ? clear_bhb_loop+0x60/0xb0
[ 250.703314][ T5021] ? clear_bhb_loop+0x60/0xb0
[ 250.708034][ T5021] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 250.713958][ T5021] RIP: 0033:0x7f9734390eea
[ 250.718432][ T5021] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 250.738061][ T5021] RSP: 002b:00007ffe79605438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.746502][ T5021] RAX: ffffffffffffffda RBX: 00007ffe796054c0 RCX: 00007f9734390eea
[ 250.754494][ T5021] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe79605480
[ 250.762487][ T5021] RBP: 0000200000000400 R08: 00007ffe796054c0 R09: 0000000002000000
[ 250.770503][ T5021] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 250.778499][ T5021] R13: 00007ffe79605480 R14: 00000000000125d8 R15: 00002000000022c0
[ 250.786509][ T5021]
[ 250.789810][ T5024] CPU: 1 PID: 5024 Comm: syz.4.442 Not tainted syzkaller #0
[ 250.793380][ T5021] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.797121][ T5024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 250.797137][ T5024] Call Trace:
[ 250.797145][ T5024]
[ 250.797155][ T5024] dump_stack_lvl+0x168/0x22e
[ 250.797193][ T5024] ? show_regs_print_info+0x12/0x12
[ 250.797231][ T5024] ? load_image+0x3b0/0x3b0
[ 250.797269][ T5024] sysfs_create_dir_ns+0x252/0x280
[ 250.797301][ T5024] ? sysfs_warn_dup+0xa0/0xa0
[ 250.797326][ T5024] ? kobject_set_name_vargs+0x5d/0x110
[ 250.797352][ T5024] ? do_raw_spin_unlock+0x11d/0x230
[ 250.810579][ T5021] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.820554][ T5024] kobject_add_internal+0x6b8/0xc80
[ 250.820590][ T5024] kobject_init_and_add+0x122/0x190
[ 250.837544][ T5023] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.841218][ T5024] ? lockdep_softirqs_off+0x420/0x420
[ 250.891303][ T5024] ? kobject_add+0x210/0x210
[ 250.895921][ T5024] ? __init_swait_queue_head+0xa5/0x150
[ 250.901487][ T5024] gfs2_sys_fs_add+0x234/0x480
[ 250.906269][ T5024] ? gfs2_recover_set+0x240/0x240
[ 250.911321][ T5024] ? snprintf+0xd7/0x120
[ 250.915584][ T5024] ? vscnprintf+0x80/0x80
[ 250.919936][ T5024] gfs2_fill_super+0x126f/0x1f80
[ 250.924902][ T5024] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.929951][ T5024] ? sb_set_blocksize+0xa5/0xe0
[ 250.934826][ T5024] get_tree_bdev+0x3f1/0x610
[ 250.939425][ T5024] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.944468][ T5024] gfs2_get_tree+0x4d/0x1e0
[ 250.948999][ T5024] vfs_get_tree+0x88/0x270
[ 250.953432][ T5024] do_new_mount+0x24a/0xa40
[ 250.957946][ T5024] __se_sys_mount+0x2d6/0x3c0
[ 250.962637][ T5024] ? __x64_sys_mount+0xc0/0xc0
[ 250.967427][ T5024] ? lockdep_hardirqs_on+0x94/0x140
[ 250.972648][ T5024] ? __x64_sys_mount+0x1c/0xc0
[ 250.977435][ T5024] do_syscall_64+0x4c/0xa0
[ 250.981877][ T5024] ? clear_bhb_loop+0x60/0xb0
[ 250.986581][ T5024] ? clear_bhb_loop+0x60/0xb0
[ 250.991304][ T5024] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 250.997240][ T5024] RIP: 0033:0x7f144ab90eea
[ 251.001681][ T5024] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 251.021301][ T5024] RSP: 002b:00007ffe72d43bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.029725][ T5024] RAX: ffffffffffffffda RBX: 00007ffe72d43c80 RCX: 00007f144ab90eea
[ 251.037704][ T5024] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe72d43c40
[ 251.045687][ T5024] RBP: 0000200000000400 R08: 00007ffe72d43c80 R09: 0000000002000000
[ 251.053672][ T5024] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 251.061660][ T5024] R13: 00007ffe72d43c40 R14: 00000000000125d8 R15: 00002000000022c0
[ 251.069671][ T5024]
[ 251.072707][ T5023] CPU: 0 PID: 5023 Comm: syz.0.441 Not tainted syzkaller #0
[ 251.074977][ T5024] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.080015][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 251.080028][ T5023] Call Trace:
[ 251.080035][ T5023]
[ 251.080044][ T5023] dump_stack_lvl+0x168/0x22e
[ 251.093187][ T5024] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.103183][ T5023] ? show_regs_print_info+0x12/0x12
[ 251.125869][ T5023] ? load_image+0x3b0/0x3b0
[ 251.130410][ T5023] sysfs_create_dir_ns+0x252/0x280
[ 251.135560][ T5023] ? sysfs_warn_dup+0xa0/0xa0
[ 251.140265][ T5023] ? kobject_set_name_vargs+0x5d/0x110
[ 251.145737][ T5023] ? do_raw_spin_unlock+0x11d/0x230
[ 251.150959][ T5023] kobject_add_internal+0x6b8/0xc80
[ 251.156183][ T5023] kobject_init_and_add+0x122/0x190
[ 251.161398][ T5023] ? lockdep_softirqs_off+0x420/0x420
[ 251.166791][ T5023] ? kobject_add+0x210/0x210
[ 251.171395][ T5023] ? __init_swait_queue_head+0xa5/0x150
[ 251.176958][ T5023] gfs2_sys_fs_add+0x234/0x480
[ 251.181741][ T5023] ? gfs2_recover_set+0x240/0x240
[ 251.186778][ T5023] ? snprintf+0xd7/0x120
[ 251.191037][ T5023] ? vscnprintf+0x80/0x80
[ 251.195388][ T5023] gfs2_fill_super+0x126f/0x1f80
[ 251.200349][ T5023] ? gfs2_reconfigure+0xcd0/0xcd0
[ 251.205395][ T5023] ? sb_set_blocksize+0xa5/0xe0
[ 251.210277][ T5023] get_tree_bdev+0x3f1/0x610
[ 251.214877][ T5023] ? gfs2_reconfigure+0xcd0/0xcd0
[ 251.219924][ T5023] gfs2_get_tree+0x4d/0x1e0
[ 251.224456][ T5023] vfs_get_tree+0x88/0x270
[ 251.228889][ T5023] do_new_mount+0x24a/0xa40
[ 251.233409][ T5023] __se_sys_mount+0x2d6/0x3c0
[ 251.238186][ T5023] ? __x64_sys_mount+0xc0/0xc0
[ 251.242963][ T5023] ? lockdep_hardirqs_on+0x94/0x140
[ 251.248175][ T5023] ? __x64_sys_mount+0x1c/0xc0
[ 251.252959][ T5023] do_syscall_64+0x4c/0xa0
[ 251.257406][ T5023] ? clear_bhb_loop+0x60/0xb0
[ 251.262113][ T5023] ? clear_bhb_loop+0x60/0xb0
[ 251.266824][ T5023] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 251.272741][ T5023] RIP: 0033:0x7f7c65d90eea
[ 251.277192][ T5023] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 251.296831][ T5023] RSP: 002b:00007fffbd32b338 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.305277][ T5023] RAX: ffffffffffffffda RBX: 00007fffbd32b3c0 RCX: 00007f7c65d90eea
[ 251.313277][ T5023] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fffbd32b380
[ 251.321276][ T5023] RBP: 0000200000000400 R08: 00007fffbd32b3c0 R09: 0000000002000000
[ 251.329275][ T5023] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 251.337262][ T5023] R13: 00007fffbd32b380 R14: 00000000000125d8 R15: 00002000000022c0
[ 251.345260][ T5023]
[ 251.348361][ T5023] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.361553][ T5023] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.696614][ T5025] loop2: detected capacity change from 0 to 32768
[ 251.710580][ T5025] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.718184][ T5025] CPU: 0 PID: 5025 Comm: syz.2.443 Not tainted syzkaller #0
[ 251.725501][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 251.735575][ T5025] Call Trace:
[ 251.738873][ T5025]
[ 251.741836][ T5025] dump_stack_lvl+0x168/0x22e
[ 251.746554][ T5025] ? show_regs_print_info+0x12/0x12
[ 251.751786][ T5025] ? load_image+0x3b0/0x3b0
[ 251.756320][ T5025] sysfs_create_dir_ns+0x252/0x280
[ 251.761460][ T5025] ? sysfs_warn_dup+0xa0/0xa0
[ 251.766162][ T5025] ? kobject_set_name_vargs+0x5d/0x110
[ 251.771641][ T5025] ? do_raw_spin_unlock+0x11d/0x230
[ 251.776888][ T5025] kobject_add_internal+0x6b8/0xc80
[ 251.782126][ T5025] kobject_init_and_add+0x122/0x190
[ 251.787374][ T5025] ? lockdep_softirqs_off+0x420/0x420
[ 251.792779][ T5025] ? kobject_add+0x210/0x210
[ 251.797408][ T5025] ? __init_swait_queue_head+0xa5/0x150
[ 251.803010][ T5025] gfs2_sys_fs_add+0x234/0x480
[ 251.807823][ T5025] ? gfs2_recover_set+0x240/0x240
[ 251.812908][ T5025] ? snprintf+0xd7/0x120
[ 251.817185][ T5025] ? vscnprintf+0x80/0x80
[ 251.821553][ T5025] gfs2_fill_super+0x126f/0x1f80
[ 251.826540][ T5025] ? gfs2_reconfigure+0xcd0/0xcd0
[ 251.831631][ T5025] ? sb_set_blocksize+0xa5/0xe0
[ 251.836518][ T5025] get_tree_bdev+0x3f1/0x610
[ 251.841142][ T5025] ? gfs2_reconfigure+0xcd0/0xcd0
[ 251.846207][ T5025] gfs2_get_tree+0x4d/0x1e0
[ 251.850747][ T5025] vfs_get_tree+0x88/0x270
[ 251.855201][ T5025] do_new_mount+0x24a/0xa40
[ 251.859743][ T5025] __se_sys_mount+0x2d6/0x3c0
[ 251.864454][ T5025] ? __x64_sys_mount+0xc0/0xc0
[ 251.869255][ T5025] ? lockdep_hardirqs_on+0x94/0x140
[ 251.874491][ T5025] ? __x64_sys_mount+0x1c/0xc0
[ 251.879285][ T5025] do_syscall_64+0x4c/0xa0
[ 251.883729][ T5025] ? clear_bhb_loop+0x60/0xb0
[ 251.888435][ T5025] ? clear_bhb_loop+0x60/0xb0
[ 251.893142][ T5025] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 251.899058][ T5025] RIP: 0033:0x7ff99ff90eea
[ 251.903494][ T5025] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 251.923124][ T5025] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.931569][ T5025] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 251.934550][ T5026] loop3: detected capacity change from 0 to 32768
[ 251.939551][ T5025] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 251.939569][ T5025] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 251.939585][ T5025] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 251.951868][ T5026] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.954001][ T5025] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 251.985383][ T5025]
[ 251.988422][ T5026] CPU: 1 PID: 5026 Comm: syz.3.444 Not tainted syzkaller #0
[ 251.991245][ T5025] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.995718][ T5026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 251.995734][ T5026] Call Trace:
[ 251.995741][ T5026]
[ 251.995751][ T5026] dump_stack_lvl+0x168/0x22e
[ 252.009006][ T5025] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.018922][ T5026] ? show_regs_print_info+0x12/0x12
[ 252.018982][ T5026] ? load_image+0x3b0/0x3b0
[ 252.046140][ T5026] sysfs_create_dir_ns+0x252/0x280
[ 252.051285][ T5026] ? sysfs_warn_dup+0xa0/0xa0
[ 252.055992][ T5026] ? kobject_set_name_vargs+0x5d/0x110
[ 252.061477][ T5026] ? do_raw_spin_unlock+0x11d/0x230
[ 252.066709][ T5026] kobject_add_internal+0x6b8/0xc80
[ 252.071963][ T5026] kobject_init_and_add+0x122/0x190
[ 252.077192][ T5026] ? lockdep_softirqs_off+0x420/0x420
[ 252.082586][ T5026] ? kobject_add+0x210/0x210
[ 252.087202][ T5026] ? __init_swait_queue_head+0xa5/0x150
[ 252.092777][ T5026] gfs2_sys_fs_add+0x234/0x480
[ 252.097569][ T5026] ? gfs2_recover_set+0x240/0x240
[ 252.102619][ T5026] ? snprintf+0xd7/0x120
[ 252.106878][ T5026] ? vscnprintf+0x80/0x80
[ 252.111245][ T5026] gfs2_fill_super+0x126f/0x1f80
[ 252.116243][ T5026] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.121330][ T5026] ? sb_set_blocksize+0xa5/0xe0
[ 252.126228][ T5026] get_tree_bdev+0x3f1/0x610
[ 252.130827][ T5026] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.135876][ T5026] gfs2_get_tree+0x4d/0x1e0
[ 252.140400][ T5026] vfs_get_tree+0x88/0x270
[ 252.144829][ T5026] do_new_mount+0x24a/0xa40
[ 252.149354][ T5026] __se_sys_mount+0x2d6/0x3c0
[ 252.154047][ T5026] ? __x64_sys_mount+0xc0/0xc0
[ 252.158834][ T5026] ? lockdep_hardirqs_on+0x94/0x140
[ 252.164068][ T5026] ? __x64_sys_mount+0x1c/0xc0
[ 252.168863][ T5026] do_syscall_64+0x4c/0xa0
[ 252.173309][ T5026] ? clear_bhb_loop+0x60/0xb0
[ 252.178025][ T5026] ? clear_bhb_loop+0x60/0xb0
[ 252.182726][ T5026] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 252.188657][ T5026] RIP: 0033:0x7f9734390eea
[ 252.193094][ T5026] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 252.212717][ T5026] RSP: 002b:00007ffe79605438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.221146][ T5026] RAX: ffffffffffffffda RBX: 00007ffe796054c0 RCX: 00007f9734390eea
[ 252.229135][ T5026] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe79605480
[ 252.237123][ T5026] RBP: 0000200000000400 R08: 00007ffe796054c0 R09: 0000000002000000
[ 252.245114][ T5026] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 252.253095][ T5026] R13: 00007ffe79605480 R14: 00000000000125d8 R15: 00002000000022c0
[ 252.261111][ T5026]
[ 252.264249][ T5026] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.277429][ T5026] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.318775][ T4506] device hsr_slave_0 left promiscuous mode
[ 252.329108][ T4506] device hsr_slave_1 left promiscuous mode
[ 252.378217][ T4506] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 252.401615][ T4506] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 252.422559][ T4604] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 252.519850][ T4430] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 252.568447][ T4429] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
2026/01/01 13:11:18 executed programs: 437
[ 253.335924][ T5031] loop3: detected capacity change from 0 to 32768
[ 253.344455][ T5030] loop2: detected capacity change from 0 to 32768
[ 253.352265][ T5028] loop0: detected capacity change from 0 to 32768
[ 253.352474][ T5029] loop4: detected capacity change from 0 to 32768
[ 253.367688][ T5031] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.370270][ T5030] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.375085][ T5031] CPU: 1 PID: 5031 Comm: syz.3.446 Not tainted syzkaller #0
[ 253.389746][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 253.399815][ T5031] Call Trace:
[ 253.403116][ T5031]
[ 253.406065][ T5031] dump_stack_lvl+0x168/0x22e
[ 253.410770][ T5031] ? show_regs_print_info+0x12/0x12
[ 253.415992][ T5031] ? load_image+0x3b0/0x3b0
[ 253.420538][ T5031] sysfs_create_dir_ns+0x252/0x280
[ 253.425682][ T5031] ? sysfs_warn_dup+0xa0/0xa0
[ 253.430386][ T5031] ? kobject_set_name_vargs+0x5d/0x110
[ 253.435869][ T5031] ? do_raw_spin_unlock+0x11d/0x230
[ 253.441111][ T5031] kobject_add_internal+0x6b8/0xc80
[ 253.446346][ T5031] kobject_init_and_add+0x122/0x190
[ 253.451557][ T5031] ? lockdep_softirqs_off+0x420/0x420
[ 253.456966][ T5031] ? kobject_add+0x210/0x210
[ 253.461585][ T5031] ? __init_swait_queue_head+0xa5/0x150
[ 253.467161][ T5031] gfs2_sys_fs_add+0x234/0x480
[ 253.471956][ T5031] ? gfs2_recover_set+0x240/0x240
[ 253.477081][ T5031] ? snprintf+0xd7/0x120
[ 253.481344][ T5031] ? vscnprintf+0x80/0x80
[ 253.485711][ T5031] gfs2_fill_super+0x126f/0x1f80
[ 253.490694][ T5031] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.495761][ T5031] ? sb_set_blocksize+0xa5/0xe0
[ 253.500628][ T5031] get_tree_bdev+0x3f1/0x610
[ 253.505244][ T5031] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.510312][ T5031] gfs2_get_tree+0x4d/0x1e0
[ 253.514849][ T5031] vfs_get_tree+0x88/0x270
[ 253.519287][ T5031] do_new_mount+0x24a/0xa40
[ 253.523815][ T5031] __se_sys_mount+0x2d6/0x3c0
[ 253.528521][ T5031] ? __x64_sys_mount+0xc0/0xc0
[ 253.533301][ T5031] ? lockdep_hardirqs_on+0x94/0x140
[ 253.538536][ T5031] ? __x64_sys_mount+0x1c/0xc0
[ 253.543334][ T5031] do_syscall_64+0x4c/0xa0
[ 253.547780][ T5031] ? clear_bhb_loop+0x60/0xb0
[ 253.552480][ T5031] ? clear_bhb_loop+0x60/0xb0
[ 253.557181][ T5031] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 253.563087][ T5031] RIP: 0033:0x7f9734390eea
[ 253.567522][ T5031] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 253.587143][ T5031] RSP: 002b:00007ffe79605438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.595586][ T5031] RAX: ffffffffffffffda RBX: 00007ffe796054c0 RCX: 00007f9734390eea
[ 253.603581][ T5031] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe79605480
[ 253.611573][ T5031] RBP: 0000200000000400 R08: 00007ffe796054c0 R09: 0000000002000000
[ 253.619574][ T5031] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 253.627569][ T5031] R13: 00007ffe79605480 R14: 00000000000125d8 R15: 00002000000022c0
[ 253.635586][ T5031]
[ 253.638635][ T5030] CPU: 0 PID: 5030 Comm: syz.2.448 Not tainted syzkaller #0
[ 253.641965][ T5031] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.645947][ T5030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 253.645961][ T5030] Call Trace:
[ 253.645969][ T5030]
[ 253.645977][ T5030] dump_stack_lvl+0x168/0x22e
[ 253.659328][ T5031] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 253.669262][ T5030] ? show_regs_print_info+0x12/0x12
[ 253.687056][ T4506] device bridge_slave_1 left promiscuous mode
[ 253.691909][ T5030] ? load_image+0x3b0/0x3b0
[ 253.702548][ T5030] sysfs_create_dir_ns+0x252/0x280
[ 253.707703][ T5030] ? sysfs_warn_dup+0xa0/0xa0
[ 253.712454][ T5030] ? kobject_set_name_vargs+0x5d/0x110
[ 253.717934][ T5030] ? do_raw_spin_unlock+0x11d/0x230
[ 253.723165][ T5030] kobject_add_internal+0x6b8/0xc80
[ 253.728383][ T5030] kobject_init_and_add+0x122/0x190
[ 253.733588][ T5030] ? lockdep_softirqs_off+0x420/0x420
[ 253.738983][ T5030] ? kobject_add+0x210/0x210
[ 253.743608][ T5030] ? __init_swait_queue_head+0xa5/0x150
[ 253.749166][ T5030] gfs2_sys_fs_add+0x234/0x480
[ 253.753945][ T5030] ? gfs2_recover_set+0x240/0x240
[ 253.758988][ T5030] ? snprintf+0xd7/0x120
[ 253.763254][ T5030] ? vscnprintf+0x80/0x80
[ 253.767608][ T5030] gfs2_fill_super+0x126f/0x1f80
[ 253.772571][ T5030] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.777660][ T5030] ? sb_set_blocksize+0xa5/0xe0
[ 253.782535][ T5030] get_tree_bdev+0x3f1/0x610
[ 253.787138][ T5030] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.792177][ T5030] gfs2_get_tree+0x4d/0x1e0
[ 253.796698][ T5030] vfs_get_tree+0x88/0x270
[ 253.801127][ T5030] do_new_mount+0x24a/0xa40
[ 253.805650][ T5030] __se_sys_mount+0x2d6/0x3c0
[ 253.810350][ T5030] ? __x64_sys_mount+0xc0/0xc0
[ 253.815128][ T5030] ? lockdep_hardirqs_on+0x94/0x140
[ 253.820340][ T5030] ? __x64_sys_mount+0x1c/0xc0
[ 253.825119][ T5030] do_syscall_64+0x4c/0xa0
[ 253.829560][ T5030] ? clear_bhb_loop+0x60/0xb0
[ 253.834260][ T5030] ? clear_bhb_loop+0x60/0xb0
[ 253.838950][ T5030] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 253.844863][ T5030] RIP: 0033:0x7ff99ff90eea
[ 253.849283][ T5030] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 253.868895][ T5030] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.877331][ T5030] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 253.885329][ T5030] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 253.893322][ T5030] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 253.901317][ T5030] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 253.909309][ T5030] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 253.917308][ T5030]
[ 253.920402][ T5030] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.923003][ T5029] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.933534][ T5030] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 253.947980][ T5029] CPU: 1 PID: 5029 Comm: syz.4.447 Not tainted syzkaller #0
[ 253.955287][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 253.965387][ T5029] Call Trace:
[ 253.968682][ T5029]
[ 253.971626][ T5029] dump_stack_lvl+0x168/0x22e
[ 253.976339][ T5029] ? show_regs_print_info+0x12/0x12
[ 253.981570][ T5029] ? load_image+0x3b0/0x3b0
[ 253.986110][ T5029] sysfs_create_dir_ns+0x252/0x280
[ 253.991271][ T5029] ? sysfs_warn_dup+0xa0/0xa0
[ 253.996012][ T5029] ? kobject_set_name_vargs+0x5d/0x110
[ 254.001515][ T5029] ? do_raw_spin_unlock+0x11d/0x230
[ 254.006762][ T5029] kobject_add_internal+0x6b8/0xc80
[ 254.012014][ T5029] kobject_init_and_add+0x122/0x190
[ 254.017255][ T5029] ? lockdep_softirqs_off+0x420/0x420
[ 254.022690][ T5029] ? kobject_add+0x210/0x210
[ 254.027323][ T5029] ? __init_swait_queue_head+0xa5/0x150
[ 254.031912][ T4506] bridge0: port 2(bridge_slave_1) entered disabled state
[ 254.032895][ T5029] gfs2_sys_fs_add+0x234/0x480
[ 254.044701][ T5029] ? gfs2_recover_set+0x240/0x240
[ 254.049757][ T5029] ? snprintf+0xd7/0x120
[ 254.054035][ T5029] ? vscnprintf+0x80/0x80
[ 254.058423][ T5029] gfs2_fill_super+0x126f/0x1f80
[ 254.063441][ T5029] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.068526][ T5029] ? sb_set_blocksize+0xa5/0xe0
[ 254.073415][ T5029] get_tree_bdev+0x3f1/0x610
[ 254.078034][ T5029] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.083091][ T5029] gfs2_get_tree+0x4d/0x1e0
[ 254.087645][ T5029] vfs_get_tree+0x88/0x270
[ 254.092101][ T5029] do_new_mount+0x24a/0xa40
[ 254.096660][ T5029] __se_sys_mount+0x2d6/0x3c0
[ 254.101387][ T5029] ? __x64_sys_mount+0xc0/0xc0
[ 254.106191][ T5029] ? lockdep_hardirqs_on+0x94/0x140
[ 254.111415][ T5029] ? __x64_sys_mount+0x1c/0xc0
[ 254.116211][ T5029] do_syscall_64+0x4c/0xa0
[ 254.120669][ T5029] ? clear_bhb_loop+0x60/0xb0
[ 254.125382][ T5029] ? clear_bhb_loop+0x60/0xb0
[ 254.130104][ T5029] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 254.136037][ T5029] RIP: 0033:0x7f144ab90eea
[ 254.140485][ T5029] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 254.160156][ T5029] RSP: 002b:00007ffe72d43bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.168609][ T5029] RAX: ffffffffffffffda RBX: 00007ffe72d43c80 RCX: 00007f144ab90eea
[ 254.176614][ T5029] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe72d43c40
[ 254.184623][ T5029] RBP: 0000200000000400 R08: 00007ffe72d43c80 R09: 0000000002000000
[ 254.192633][ T5029] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 254.200635][ T5029] R13: 00007ffe72d43c40 R14: 00000000000125d8 R15: 00002000000022c0
[ 254.208648][ T5029]
[ 254.211788][ T5029] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.224974][ T5029] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.276951][ T4506] device bridge_slave_0 left promiscuous mode
[ 254.283206][ T4506] bridge0: port 1(bridge_slave_0) entered disabled state
[ 254.548915][ T5032] loop2: detected capacity change from 0 to 32768
[ 254.562915][ T5028] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.570453][ T5028] CPU: 1 PID: 5028 Comm: syz.0.445 Not tainted syzkaller #0
[ 254.577774][ T5028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 254.587864][ T5028] Call Trace:
[ 254.591185][ T5028]
[ 254.594168][ T5028] dump_stack_lvl+0x168/0x22e
[ 254.598892][ T5028] ? show_regs_print_info+0x12/0x12
[ 254.604131][ T5028] ? load_image+0x3b0/0x3b0
[ 254.608687][ T5028] sysfs_create_dir_ns+0x252/0x280
[ 254.613849][ T5028] ? sysfs_warn_dup+0xa0/0xa0
[ 254.618579][ T5028] ? kobject_set_name_vargs+0x5d/0x110
[ 254.624070][ T5028] ? do_raw_spin_unlock+0x11d/0x230
[ 254.629336][ T5028] kobject_add_internal+0x6b8/0xc80
[ 254.634572][ T5028] kobject_init_and_add+0x122/0x190
[ 254.639797][ T5028] ? lockdep_softirqs_off+0x420/0x420
[ 254.645209][ T5028] ? kobject_add+0x210/0x210
[ 254.649853][ T5028] ? __init_swait_queue_head+0xa5/0x150
[ 254.655448][ T5028] gfs2_sys_fs_add+0x234/0x480
[ 254.660243][ T5028] ? gfs2_recover_set+0x240/0x240
[ 254.665304][ T5028] ? snprintf+0xd7/0x120
[ 254.669594][ T5028] ? vscnprintf+0x80/0x80
[ 254.673995][ T5028] gfs2_fill_super+0x126f/0x1f80
[ 254.678998][ T5028] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.684073][ T5028] ? sb_set_blocksize+0xa5/0xe0
[ 254.688960][ T5028] get_tree_bdev+0x3f1/0x610
[ 254.693581][ T5028] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.698637][ T5028] gfs2_get_tree+0x4d/0x1e0
[ 254.703182][ T5028] vfs_get_tree+0x88/0x270
[ 254.707656][ T5028] do_new_mount+0x24a/0xa40
[ 254.712197][ T5028] __se_sys_mount+0x2d6/0x3c0
[ 254.716903][ T5028] ? __x64_sys_mount+0xc0/0xc0
[ 254.721697][ T5028] ? lockdep_hardirqs_on+0x94/0x140
[ 254.726924][ T5028] ? __x64_sys_mount+0x1c/0xc0
[ 254.731725][ T5028] do_syscall_64+0x4c/0xa0
[ 254.736189][ T5028] ? clear_bhb_loop+0x60/0xb0
[ 254.740892][ T5028] ? clear_bhb_loop+0x60/0xb0
[ 254.745598][ T5028] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 254.751521][ T5028] RIP: 0033:0x7f7c65d90eea
[ 254.755962][ T5028] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 254.775682][ T5028] RSP: 002b:00007fffbd32b338 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.784138][ T5028] RAX: ffffffffffffffda RBX: 00007fffbd32b3c0 RCX: 00007f7c65d90eea
[ 254.792139][ T5028] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fffbd32b380
[ 254.800128][ T5028] RBP: 0000200000000400 R08: 00007fffbd32b3c0 R09: 0000000002000000
[ 254.808119][ T5028] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 254.816120][ T5028] R13: 00007fffbd32b380 R14: 00000000000125d8 R15: 00002000000022c0
[ 254.824127][ T5028]
[ 254.828004][ T5028] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.841176][ T5028] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.850106][ T5032] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.858045][ T5032] CPU: 1 PID: 5032 Comm: syz.2.449 Not tainted syzkaller #0
[ 254.865351][ T5032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 254.875432][ T5032] Call Trace:
[ 254.878754][ T5032]
[ 254.881708][ T5032] dump_stack_lvl+0x168/0x22e
[ 254.886428][ T5032] ? show_regs_print_info+0x12/0x12
[ 254.891671][ T5032] ? load_image+0x3b0/0x3b0
[ 254.896232][ T5032] sysfs_create_dir_ns+0x252/0x280
[ 254.901383][ T5032] ? sysfs_warn_dup+0xa0/0xa0
[ 254.906090][ T5032] ? kobject_set_name_vargs+0x5d/0x110
[ 254.911585][ T5032] ? do_raw_spin_unlock+0x11d/0x230
[ 254.916831][ T5032] kobject_add_internal+0x6b8/0xc80
[ 254.922067][ T5032] kobject_init_and_add+0x122/0x190
[ 254.927294][ T5032] ? lockdep_softirqs_off+0x420/0x420
[ 254.932717][ T5032] ? kobject_add+0x210/0x210
[ 254.937353][ T5032] ? __init_swait_queue_head+0xa5/0x150
[ 254.942927][ T5032] gfs2_sys_fs_add+0x234/0x480
[ 254.947723][ T5032] ? gfs2_recover_set+0x240/0x240
[ 254.952793][ T5032] ? snprintf+0xd7/0x120
[ 254.957086][ T5032] ? vscnprintf+0x80/0x80
[ 254.961468][ T5032] gfs2_fill_super+0x126f/0x1f80
[ 254.966459][ T5032] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.971532][ T5032] ? sb_set_blocksize+0xa5/0xe0
[ 254.976411][ T5032] get_tree_bdev+0x3f1/0x610
[ 254.981027][ T5032] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.986096][ T5032] gfs2_get_tree+0x4d/0x1e0
[ 254.990638][ T5032] vfs_get_tree+0x88/0x270
[ 254.995093][ T5032] do_new_mount+0x24a/0xa40
[ 254.999653][ T5032] __se_sys_mount+0x2d6/0x3c0
[ 255.004371][ T5032] ? __x64_sys_mount+0xc0/0xc0
[ 255.009187][ T5032] ? lockdep_hardirqs_on+0x94/0x140
[ 255.014426][ T5032] ? __x64_sys_mount+0x1c/0xc0
[ 255.019231][ T5032] do_syscall_64+0x4c/0xa0
[ 255.023686][ T5032] ? clear_bhb_loop+0x60/0xb0
[ 255.028402][ T5032] ? clear_bhb_loop+0x60/0xb0
[ 255.033126][ T5032] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 255.039062][ T5032] RIP: 0033:0x7ff99ff90eea
[ 255.043519][ T5032] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 255.063170][ T5032] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.071617][ T5032] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 255.079610][ T5032] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 255.087620][ T5032] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 255.095660][ T5032] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 255.103684][ T5032] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 255.111699][ T5032]
[ 255.115406][ T5032] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.128797][ T5032] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.156427][ T4543] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 255.257954][ T4430] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 255.357695][ T1267] ieee802154 phy0 wpan0: encryption failed: -22
[ 255.364042][ T1267] ieee802154 phy1 wpan1: encryption failed: -22
[ 255.581111][ T5036] loop3: detected capacity change from 0 to 32768
[ 255.911643][ T5036] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.919219][ T5036] CPU: 0 PID: 5036 Comm: syz.3.452 Not tainted syzkaller #0
[ 255.926539][ T5036] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 255.936623][ T5036] Call Trace:
[ 255.939932][ T5036]
[ 255.942887][ T5036] dump_stack_lvl+0x168/0x22e
[ 255.947610][ T5036] ? show_regs_print_info+0x12/0x12
[ 255.952838][ T5036] ? load_image+0x3b0/0x3b0
[ 255.957386][ T5036] sysfs_create_dir_ns+0x252/0x280
[ 255.962534][ T5036] ? sysfs_warn_dup+0xa0/0xa0
[ 255.967240][ T5036] ? kobject_set_name_vargs+0x5d/0x110
[ 255.972730][ T5036] ? do_raw_spin_unlock+0x11d/0x230
[ 255.978012][ T5036] kobject_add_internal+0x6b8/0xc80
[ 255.983264][ T5036] kobject_init_and_add+0x122/0x190
[ 255.988668][ T5036] ? lockdep_softirqs_off+0x420/0x420
[ 255.994086][ T5036] ? kobject_add+0x210/0x210
[ 255.998729][ T5036] ? __init_swait_queue_head+0xa5/0x150
[ 256.004300][ T5036] gfs2_sys_fs_add+0x234/0x480
[ 256.009091][ T5036] ? gfs2_recover_set+0x240/0x240
[ 256.014148][ T5036] ? snprintf+0xd7/0x120
[ 256.018422][ T5036] ? vscnprintf+0x80/0x80
[ 256.022804][ T5036] gfs2_fill_super+0x126f/0x1f80
[ 256.027779][ T5036] ? gfs2_reconfigure+0xcd0/0xcd0
[ 256.032830][ T5036] ? sb_set_blocksize+0xa5/0xe0
[ 256.037701][ T5036] get_tree_bdev+0x3f1/0x610
[ 256.042317][ T5036] ? gfs2_reconfigure+0xcd0/0xcd0
[ 256.047364][ T5036] gfs2_get_tree+0x4d/0x1e0
[ 256.051944][ T5036] vfs_get_tree+0x88/0x270
[ 256.056383][ T5036] do_new_mount+0x24a/0xa40
[ 256.060911][ T5036] __se_sys_mount+0x2d6/0x3c0
[ 256.065613][ T5036] ? __x64_sys_mount+0xc0/0xc0
[ 256.070395][ T5036] ? lockdep_hardirqs_on+0x94/0x140
[ 256.075606][ T5036] ? __x64_sys_mount+0x1c/0xc0
[ 256.080386][ T5036] do_syscall_64+0x4c/0xa0
[ 256.084822][ T5036] ? clear_bhb_loop+0x60/0xb0
[ 256.089511][ T5036] ? clear_bhb_loop+0x60/0xb0
[ 256.094206][ T5036] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 256.100116][ T5036] RIP: 0033:0x7f9734390eea
[ 256.104555][ T5036] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 256.124212][ T5036] RSP: 002b:00007ffe79605438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.132823][ T5036] RAX: ffffffffffffffda RBX: 00007ffe796054c0 RCX: 00007f9734390eea
[ 256.140812][ T5036] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe79605480
[ 256.148791][ T5036] RBP: 0000200000000400 R08: 00007ffe796054c0 R09: 0000000002000000
[ 256.156862][ T5036] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 256.164850][ T5036] R13: 00007ffe79605480 R14: 00000000000125d8 R15: 00002000000022c0
[ 256.172840][ T5036]
[ 256.176975][ T5036] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.190835][ T5036] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.222016][ T5037] loop0: detected capacity change from 0 to 32768
[ 256.573210][ T5039] loop2: detected capacity change from 0 to 32768
[ 256.661923][ T5039] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.669391][ T5039] CPU: 0 PID: 5039 Comm: syz.2.454 Not tainted syzkaller #0
[ 256.676710][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 256.686790][ T5039] Call Trace:
[ 256.690089][ T5039]
[ 256.693039][ T5039] dump_stack_lvl+0x168/0x22e
[ 256.697755][ T5039] ? show_regs_print_info+0x12/0x12
[ 256.702986][ T5039] ? load_image+0x3b0/0x3b0
[ 256.707537][ T5039] sysfs_create_dir_ns+0x252/0x280
[ 256.712694][ T5039] ? sysfs_warn_dup+0xa0/0xa0
[ 256.717395][ T5039] ? kobject_set_name_vargs+0x5d/0x110
[ 256.722878][ T5039] ? do_raw_spin_unlock+0x11d/0x230
[ 256.728128][ T5039] kobject_add_internal+0x6b8/0xc80
[ 256.733364][ T5039] kobject_init_and_add+0x122/0x190
[ 256.738589][ T5039] ? lockdep_softirqs_off+0x420/0x420
[ 256.744008][ T5039] ? kobject_add+0x210/0x210
[ 256.748657][ T5039] ? __init_swait_queue_head+0xa5/0x150
[ 256.754583][ T5039] gfs2_sys_fs_add+0x234/0x480
[ 256.759391][ T5039] ? gfs2_recover_set+0x240/0x240
[ 256.764461][ T5039] ? snprintf+0xd7/0x120
[ 256.768766][ T5039] ? vscnprintf+0x80/0x80
[ 256.773130][ T5039] gfs2_fill_super+0x126f/0x1f80
[ 256.778219][ T5039] ? gfs2_reconfigure+0xcd0/0xcd0
[ 256.783293][ T5039] ? sb_set_blocksize+0xa5/0xe0
[ 256.788194][ T5039] get_tree_bdev+0x3f1/0x610
[ 256.792818][ T5039] ? gfs2_reconfigure+0xcd0/0xcd0
[ 256.797887][ T5039] gfs2_get_tree+0x4d/0x1e0
[ 256.802434][ T5039] vfs_get_tree+0x88/0x270
[ 256.806878][ T5039] do_new_mount+0x24a/0xa40
[ 256.811413][ T5039] __se_sys_mount+0x2d6/0x3c0
[ 256.816125][ T5039] ? __x64_sys_mount+0xc0/0xc0
[ 256.820920][ T5039] ? lockdep_hardirqs_on+0x94/0x140
[ 256.826152][ T5039] ? __x64_sys_mount+0x1c/0xc0
[ 256.830950][ T5039] do_syscall_64+0x4c/0xa0
[ 256.835416][ T5039] ? clear_bhb_loop+0x60/0xb0
[ 256.840134][ T5039] ? clear_bhb_loop+0x60/0xb0
[ 256.844853][ T5039] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 256.850795][ T5039] RIP: 0033:0x7ff99ff90eea
[ 256.855244][ T5039] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 256.874888][ T5039] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.883343][ T5039] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 256.891354][ T5039] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 256.899356][ T5039] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 256.907362][ T5039] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 256.915366][ T5039] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 256.923390][ T5039]
[ 256.927554][ T5039] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.940744][ T5039] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.971888][ T5037] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.979534][ T5037] CPU: 0 PID: 5037 Comm: syz.0.453 Not tainted syzkaller #0
[ 256.986858][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 256.996940][ T5037] Call Trace:
[ 257.000233][ T5037]
[ 257.003208][ T5037] dump_stack_lvl+0x168/0x22e
[ 257.007928][ T5037] ? show_regs_print_info+0x12/0x12
[ 257.013169][ T5037] ? load_image+0x3b0/0x3b0
[ 257.017732][ T5037] sysfs_create_dir_ns+0x252/0x280
[ 257.022900][ T5037] ? sysfs_warn_dup+0xa0/0xa0
[ 257.027642][ T5037] ? kobject_set_name_vargs+0x5d/0x110
[ 257.033134][ T5037] ? do_raw_spin_unlock+0x11d/0x230
[ 257.038379][ T5037] kobject_add_internal+0x6b8/0xc80
[ 257.043642][ T5037] kobject_init_and_add+0x122/0x190
[ 257.048892][ T5037] ? lockdep_softirqs_off+0x420/0x420
[ 257.054405][ T5037] ? kobject_add+0x210/0x210
[ 257.059034][ T5037] ? __init_swait_queue_head+0xa5/0x150
[ 257.064620][ T5037] gfs2_sys_fs_add+0x234/0x480
[ 257.069425][ T5037] ? gfs2_recover_set+0x240/0x240
[ 257.074490][ T5037] ? snprintf+0xd7/0x120
[ 257.078762][ T5037] ? vscnprintf+0x80/0x80
[ 257.083126][ T5037] gfs2_fill_super+0x126f/0x1f80
[ 257.088112][ T5037] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.093181][ T5037] ? sb_set_blocksize+0xa5/0xe0
[ 257.098069][ T5037] get_tree_bdev+0x3f1/0x610
[ 257.102690][ T5037] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.107754][ T5037] gfs2_get_tree+0x4d/0x1e0
[ 257.112314][ T5037] vfs_get_tree+0x88/0x270
[ 257.116770][ T5037] do_new_mount+0x24a/0xa40
[ 257.121319][ T5037] __se_sys_mount+0x2d6/0x3c0
[ 257.126029][ T5037] ? __x64_sys_mount+0xc0/0xc0
[ 257.130824][ T5037] ? lockdep_hardirqs_on+0x94/0x140
[ 257.136074][ T5037] ? __x64_sys_mount+0x1c/0xc0
[ 257.140874][ T5037] do_syscall_64+0x4c/0xa0
[ 257.145320][ T5037] ? clear_bhb_loop+0x60/0xb0
[ 257.150029][ T5037] ? clear_bhb_loop+0x60/0xb0
[ 257.154741][ T5037] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 257.160661][ T5037] RIP: 0033:0x7f7c65d90eea
[ 257.165097][ T5037] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 257.184734][ T5037] RSP: 002b:00007fffbd32b338 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.193180][ T5037] RAX: ffffffffffffffda RBX: 00007fffbd32b3c0 RCX: 00007f7c65d90eea
[ 257.201192][ T5037] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fffbd32b380
[ 257.209191][ T5037] RBP: 0000200000000400 R08: 00007fffbd32b3c0 R09: 0000000002000000
[ 257.217183][ T5037] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 257.225177][ T5037] R13: 00007fffbd32b380 R14: 00000000000125d8 R15: 00002000000022c0
[ 257.233190][ T5037]
[ 257.237335][ T5037] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.250510][ T5037] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.275843][ T28] INFO: task syz.1.24:4526 blocked for more than 143 seconds.
[ 257.290543][ T28] Not tainted syzkaller #0
[ 257.362132][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 257.371163][ T28] task:syz.1.24 state:D stack:25696 pid:4526 ppid:4390 flags:0x00004004
[ 257.383745][ T28] Call Trace:
[ 257.816719][ T5042] loop4: detected capacity change from 0 to 32768
[ 257.826267][ T5042] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.833782][ T5042] CPU: 0 PID: 5042 Comm: syz.4.459 Not tainted syzkaller #0
[ 257.841103][ T5042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 257.851191][ T5042] Call Trace:
[ 257.854506][ T5042]
[ 257.857467][ T5042] dump_stack_lvl+0x168/0x22e
[ 257.862191][ T5042] ? show_regs_print_info+0x12/0x12
[ 257.867444][ T5042] ? load_image+0x3b0/0x3b0
[ 257.872003][ T5042] sysfs_create_dir_ns+0x252/0x280
[ 257.877162][ T5042] ? sysfs_warn_dup+0xa0/0xa0
[ 257.881879][ T5042] ? kobject_set_name_vargs+0x5d/0x110
[ 257.887396][ T5042] ? do_raw_spin_unlock+0x11d/0x230
[ 257.892655][ T5042] kobject_add_internal+0x6b8/0xc80
[ 257.897903][ T5042] kobject_init_and_add+0x122/0x190
[ 257.903137][ T5042] ? lockdep_softirqs_off+0x420/0x420
[ 257.908551][ T5042] ? kobject_add+0x210/0x210
[ 257.913165][ T5042] ? __init_swait_queue_head+0xa5/0x150
[ 257.918737][ T5042] gfs2_sys_fs_add+0x234/0x480
[ 257.923539][ T5042] ? gfs2_recover_set+0x240/0x240
[ 257.928595][ T5042] ? snprintf+0xd7/0x120
[ 257.932864][ T5042] ? vscnprintf+0x80/0x80
[ 257.937232][ T5042] gfs2_fill_super+0x126f/0x1f80
[ 257.942215][ T5042] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.947275][ T5042] ? sb_set_blocksize+0xa5/0xe0
[ 257.952151][ T5042] get_tree_bdev+0x3f1/0x610
[ 257.956770][ T5042] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.961824][ T5042] gfs2_get_tree+0x4d/0x1e0
[ 257.966358][ T5042] vfs_get_tree+0x88/0x270
[ 257.970798][ T5042] do_new_mount+0x24a/0xa40
[ 257.975331][ T5042] __se_sys_mount+0x2d6/0x3c0
[ 257.980034][ T5042] ? __x64_sys_mount+0xc0/0xc0
[ 257.984818][ T5042] ? lockdep_hardirqs_on+0x94/0x140
[ 257.990031][ T5042] ? __x64_sys_mount+0x1c/0xc0
[ 257.994851][ T5042] do_syscall_64+0x4c/0xa0
[ 257.999304][ T5042] ? clear_bhb_loop+0x60/0xb0
[ 258.004013][ T5042] ? clear_bhb_loop+0x60/0xb0
[ 258.008729][ T5042] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 258.014653][ T5042] RIP: 0033:0x7f144ab90eea
[ 258.019092][ T5042] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 258.038728][ T5042] RSP: 002b:00007ffe72d43bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.047162][ T5042] RAX: ffffffffffffffda RBX: 00007ffe72d43c80 RCX: 00007f144ab90eea
[ 258.055149][ T5042] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe72d43c40
2026/01/01 13:11:24 executed programs: 452
[ 258.063135][ T5042] RBP: 0000200000000400 R08: 00007ffe72d43c80 R09: 0000000002000000
[ 258.071119][ T5042] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 258.079103][ T5042] R13: 00007ffe72d43c40 R14: 00000000000125d8 R15: 00002000000022c0
[ 258.087102][ T5042]
[ 258.091134][ T5042] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.104316][ T5042] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.116853][ T4429] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 258.135579][ T28]
[ 258.501028][ T5044] loop3: detected capacity change from 0 to 32768
[ 258.514943][ T5044] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.522447][ T5044] CPU: 0 PID: 5044 Comm: syz.3.458 Not tainted syzkaller #0
[ 258.529764][ T5044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 258.539848][ T5044] Call Trace:
[ 258.543153][ T5044]
[ 258.546099][ T5044] dump_stack_lvl+0x168/0x22e
[ 258.550810][ T5044] ? show_regs_print_info+0x12/0x12
[ 258.556041][ T5044] ? load_image+0x3b0/0x3b0
[ 258.560582][ T5044] sysfs_create_dir_ns+0x252/0x280
[ 258.565738][ T5044] ? sysfs_warn_dup+0xa0/0xa0
[ 258.570450][ T5044] ? kobject_set_name_vargs+0x5d/0x110
[ 258.575941][ T5044] ? do_raw_spin_unlock+0x11d/0x230
[ 258.581186][ T5044] kobject_add_internal+0x6b8/0xc80
[ 258.586426][ T5044] kobject_init_and_add+0x122/0x190
[ 258.591667][ T5044] ? lockdep_softirqs_off+0x420/0x420
[ 258.597076][ T5044] ? kobject_add+0x210/0x210
[ 258.601694][ T5044] ? __init_swait_queue_head+0xa5/0x150
[ 258.607281][ T5044] gfs2_sys_fs_add+0x234/0x480
[ 258.612102][ T5044] ? gfs2_recover_set+0x240/0x240
[ 258.617167][ T5044] ? snprintf+0xd7/0x120
[ 258.621457][ T5044] ? vscnprintf+0x80/0x80
[ 258.625858][ T5044] gfs2_fill_super+0x126f/0x1f80
[ 258.630852][ T5044] ? gfs2_reconfigure+0xcd0/0xcd0
[ 258.635929][ T5044] ? sb_set_blocksize+0xa5/0xe0
[ 258.640820][ T5044] get_tree_bdev+0x3f1/0x610
[ 258.645449][ T5044] ? gfs2_reconfigure+0xcd0/0xcd0
[ 258.650519][ T5044] gfs2_get_tree+0x4d/0x1e0
[ 258.655068][ T5044] vfs_get_tree+0x88/0x270
[ 258.659532][ T5044] do_new_mount+0x24a/0xa40
[ 258.664087][ T5044] __se_sys_mount+0x2d6/0x3c0
[ 258.668850][ T5044] ? __x64_sys_mount+0xc0/0xc0
[ 258.673661][ T5044] ? lockdep_hardirqs_on+0x94/0x140
[ 258.677844][ T28] __schedule+0x10ec/0x40b0
[ 258.678904][ T5044] ? __x64_sys_mount+0x1c/0xc0
[ 258.688241][ T5044] do_syscall_64+0x4c/0xa0
[ 258.692696][ T5044] ? clear_bhb_loop+0x60/0xb0
[ 258.697408][ T5044] ? clear_bhb_loop+0x60/0xb0
[ 258.702122][ T5044] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 258.708067][ T5044] RIP: 0033:0x7f9734390eea
[ 258.712523][ T5044] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 258.732176][ T5044] RSP: 002b:00007ffe79605438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.740625][ T5044] RAX: ffffffffffffffda RBX: 00007ffe796054c0 RCX: 00007f9734390eea
[ 258.741497][ T28] ? verify_lock_unused+0x140/0x140
[ 258.748623][ T5044] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe79605480
[ 258.748643][ T5044] RBP: 0000200000000400 R08: 00007ffe796054c0 R09: 0000000002000000
[ 258.748658][ T5044] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 258.748674][ T5044] R13: 00007ffe79605480 R14: 00000000000125d8 R15: 00002000000022c0
[ 258.748704][ T5044]
[ 258.751168][ T5044] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.802701][ T5044] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.137430][ T5045] loop2: detected capacity change from 0 to 32768
[ 259.156493][ T5045] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.163921][ T5045] CPU: 1 PID: 5045 Comm: syz.2.460 Not tainted syzkaller #0
[ 259.171236][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 259.181321][ T5045] Call Trace:
[ 259.184630][ T5045]
[ 259.187591][ T5045] dump_stack_lvl+0x168/0x22e
[ 259.192320][ T5045] ? show_regs_print_info+0x12/0x12
[ 259.197586][ T5045] ? load_image+0x3b0/0x3b0
[ 259.202150][ T5045] sysfs_create_dir_ns+0x252/0x280
[ 259.207301][ T5045] ? sysfs_warn_dup+0xa0/0xa0
[ 259.212013][ T5045] ? kobject_set_name_vargs+0x5d/0x110
[ 259.217511][ T5045] ? do_raw_spin_unlock+0x11d/0x230
[ 259.222763][ T5045] kobject_add_internal+0x6b8/0xc80
[ 259.228011][ T5045] kobject_init_and_add+0x122/0x190
[ 259.233253][ T5045] ? lockdep_softirqs_off+0x420/0x420
[ 259.238668][ T5045] ? kobject_add+0x210/0x210
[ 259.243306][ T5045] ? __init_swait_queue_head+0xa5/0x150
[ 259.248906][ T5045] gfs2_sys_fs_add+0x234/0x480
[ 259.253716][ T5045] ? gfs2_recover_set+0x240/0x240
[ 259.258788][ T5045] ? snprintf+0xd7/0x120
[ 259.263076][ T5045] ? vscnprintf+0x80/0x80
[ 259.267460][ T5045] gfs2_fill_super+0x126f/0x1f80
[ 259.272449][ T5045] ? gfs2_reconfigure+0xcd0/0xcd0
[ 259.277516][ T5045] ? sb_set_blocksize+0xa5/0xe0
[ 259.282398][ T5045] get_tree_bdev+0x3f1/0x610
[ 259.287019][ T5045] ? gfs2_reconfigure+0xcd0/0xcd0
[ 259.292091][ T5045] gfs2_get_tree+0x4d/0x1e0
[ 259.296635][ T5045] vfs_get_tree+0x88/0x270
[ 259.301081][ T5045] do_new_mount+0x24a/0xa40
[ 259.305621][ T5045] __se_sys_mount+0x2d6/0x3c0
[ 259.310342][ T5045] ? __x64_sys_mount+0xc0/0xc0
[ 259.315146][ T5045] ? lockdep_hardirqs_on+0x94/0x140
[ 259.320381][ T5045] ? __x64_sys_mount+0x1c/0xc0
[ 259.325192][ T5045] do_syscall_64+0x4c/0xa0
[ 259.329651][ T5045] ? clear_bhb_loop+0x60/0xb0
[ 259.334373][ T5045] ? clear_bhb_loop+0x60/0xb0
[ 259.339100][ T5045] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 259.345039][ T5045] RIP: 0033:0x7ff99ff90eea
[ 259.349498][ T5045] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 259.369148][ T5045] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.377608][ T5045] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 259.385614][ T5045] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 259.393628][ T5045] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 259.401643][ T5045] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 259.409640][ T5045] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 259.417682][ T5045]
[ 259.422131][ T5045] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.435325][ T5045] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.621745][ T28] ? __sched_text_start+0x8/0x8
[ 259.905193][ T28] schedule+0xb9/0x180
[ 259.909456][ T28] schedule_timeout+0x97/0x280
[ 259.914266][ T28] ? console_conditional_schedule+0x40/0x40
[ 259.949536][ T28] ? lockdep_hardirqs_on_prepare+0x3fc/0x760
[ 260.055597][ T28] ? lock_chain_count+0x20/0x20
[ 260.103812][ T28] ? _raw_spin_lock_irq+0xab/0xe0
[ 260.407722][ T28] ? _raw_spin_lock_irqsave+0xf0/0xf0
[ 260.449444][ T28] ? lockdep_hardirqs_on_prepare+0x3fc/0x760
[ 260.539728][ T28] ? _raw_spin_unlock_irq+0x1f/0x40
[ 260.545030][ T28] ? lockdep_hardirqs_on+0x94/0x140
[ 260.550667][ T28] ? wait_for_completion+0x268/0x590
[ 260.556296][ T28] wait_for_completion+0x2b9/0x590
[ 260.561486][ T28] ? io_schedule+0xd0/0xd0
[ 260.566242][ T28] ? __mutex_trylock_common+0x14f/0x250
[ 260.571938][ T28] ? try_to_wake_up+0x67c/0x1080
[ 260.594938][ T28] ? gfs2_drain_revokes+0x19d/0x1b0
[ 260.626184][ T28] ? kthread_unpark+0xba/0x250
[ 260.824755][ T28] kthread_stop+0x197/0x650
[ 260.914246][ T28] gfs2_withdraw+0x643/0x1780
[ 260.919149][ T28] ? gfs2_lm+0x220/0x220
[ 260.923545][ T28] ? bit_waitqueue+0x30/0x30
[ 260.928406][ T28] gfs2_metatype_check_ii+0x74/0x90
[ 260.933677][ T28] gfs2_quota_init+0xc81/0xe80
[ 260.938555][ T28] ? qd_get+0x630/0x630
[ 260.942772][ T28] gfs2_make_fs_rw+0x3f5/0x560
[ 260.962079][ T28] ? gfs2_jdesc_check+0x290/0x290
[ 261.007672][ T28] ? gfs2_glock_wait+0x20b/0x2a0
[ 261.156285][ T28] gfs2_fill_super+0x1888/0x1f80
[ 261.161318][ T28] ? gfs2_reconfigure+0xcd0/0xcd0
[ 261.343458][ T5053] loop2: detected capacity change from 0 to 32768
[ 261.351386][ T28] ? init_locking+0xb8/0x200
[ 261.356119][ T28] ? sb_set_blocksize+0xa5/0xe0
[ 261.361019][ T28] get_tree_bdev+0x3f1/0x610
[ 261.367048][ T28] ? gfs2_reconfigure+0xcd0/0xcd0
[ 261.390272][ T28] gfs2_get_tree+0x4d/0x1e0
[ 261.400016][ T5053] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.408314][ T5053] CPU: 0 PID: 5053 Comm: syz.2.469 Not tainted syzkaller #0
[ 261.415634][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 261.425720][ T5053] Call Trace:
[ 261.429034][ T5053]
[ 261.431997][ T5053] dump_stack_lvl+0x168/0x22e
[ 261.436725][ T5053] ? show_regs_print_info+0x12/0x12
[ 261.441975][ T5053] ? load_image+0x3b0/0x3b0
[ 261.446524][ T5053] sysfs_create_dir_ns+0x252/0x280
[ 261.451686][ T5053] ? sysfs_warn_dup+0xa0/0xa0
[ 261.456411][ T5053] ? kobject_set_name_vargs+0x5d/0x110
[ 261.461906][ T5053] ? do_raw_spin_unlock+0x11d/0x230
[ 261.467157][ T5053] kobject_add_internal+0x6b8/0xc80
[ 261.472438][ T5053] kobject_init_and_add+0x122/0x190
[ 261.477677][ T5053] ? lockdep_softirqs_off+0x420/0x420
[ 261.483087][ T5053] ? kobject_add+0x210/0x210
[ 261.487715][ T5053] ? __init_swait_queue_head+0xa5/0x150
[ 261.493296][ T5053] gfs2_sys_fs_add+0x234/0x480
[ 261.498109][ T5053] ? gfs2_recover_set+0x240/0x240
[ 261.503170][ T5053] ? snprintf+0xd7/0x120
[ 261.507459][ T5053] ? vscnprintf+0x80/0x80
[ 261.511843][ T5053] gfs2_fill_super+0x126f/0x1f80
[ 261.516849][ T5053] ? gfs2_reconfigure+0xcd0/0xcd0
[ 261.521932][ T5053] ? sb_set_blocksize+0xa5/0xe0
[ 261.526825][ T5053] get_tree_bdev+0x3f1/0x610
[ 261.531452][ T5053] ? gfs2_reconfigure+0xcd0/0xcd0
[ 261.536521][ T5053] gfs2_get_tree+0x4d/0x1e0
[ 261.541059][ T5053] vfs_get_tree+0x88/0x270
[ 261.545515][ T5053] do_new_mount+0x24a/0xa40
[ 261.550059][ T5053] __se_sys_mount+0x2d6/0x3c0
[ 261.554798][ T5053] ? __x64_sys_mount+0xc0/0xc0
[ 261.559596][ T5053] ? lockdep_hardirqs_on+0x94/0x140
[ 261.564831][ T5053] ? __x64_sys_mount+0x1c/0xc0
[ 261.569647][ T5053] do_syscall_64+0x4c/0xa0
[ 261.574102][ T5053] ? clear_bhb_loop+0x60/0xb0
[ 261.578810][ T5053] ? clear_bhb_loop+0x60/0xb0
[ 261.583521][ T5053] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 261.589448][ T5053] RIP: 0033:0x7ff99ff90eea
[ 261.593911][ T5053] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 261.613550][ T5053] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 261.622023][ T5053] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 261.630028][ T5053] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 261.638040][ T5053] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 261.646053][ T5053] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 261.654073][ T5053] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 261.662082][ T5053]
[ 261.666333][ T5053] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 261.679676][ T5053] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 261.715153][ T28] vfs_get_tree+0x88/0x270
[ 261.733423][ T5054] loop0: detected capacity change from 0 to 32768
[ 261.741493][ T5054] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.748973][ T5054] CPU: 1 PID: 5054 Comm: syz.0.470 Not tainted syzkaller #0
[ 261.749837][ T28] do_new_mount+0x24a/0xa40
[ 261.756283][ T5054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 261.756299][ T5054] Call Trace:
[ 261.756307][ T5054]
[ 261.756316][ T5054] dump_stack_lvl+0x168/0x22e
[ 261.756351][ T5054] ? show_regs_print_info+0x12/0x12
[ 261.756383][ T5054] ? load_image+0x3b0/0x3b0
[ 261.756419][ T5054] sysfs_create_dir_ns+0x252/0x280
[ 261.756449][ T5054] ? sysfs_warn_dup+0xa0/0xa0
[ 261.756474][ T5054] ? kobject_set_name_vargs+0x5d/0x110
[ 261.756497][ T5054] ? do_raw_spin_unlock+0x11d/0x230
[ 261.812335][ T5054] kobject_add_internal+0x6b8/0xc80
[ 261.817579][ T5054] kobject_init_and_add+0x122/0x190
[ 261.822809][ T5054] ? lockdep_softirqs_off+0x420/0x420
[ 261.828217][ T5054] ? kobject_add+0x210/0x210
[ 261.832842][ T5054] ? __init_swait_queue_head+0xa5/0x150
[ 261.838407][ T5054] gfs2_sys_fs_add+0x234/0x480
[ 261.843217][ T5054] ? gfs2_recover_set+0x240/0x240
[ 261.848280][ T5054] ? snprintf+0xd7/0x120
[ 261.852554][ T5054] ? vscnprintf+0x80/0x80
[ 261.857003][ T5054] gfs2_fill_super+0x126f/0x1f80
[ 261.861982][ T5054] ? gfs2_reconfigure+0xcd0/0xcd0
[ 261.867052][ T5054] ? sb_set_blocksize+0xa5/0xe0
[ 261.872017][ T5054] get_tree_bdev+0x3f1/0x610
[ 261.876631][ T5054] ? gfs2_reconfigure+0xcd0/0xcd0
[ 261.881706][ T5054] gfs2_get_tree+0x4d/0x1e0
[ 261.886245][ T5054] vfs_get_tree+0x88/0x270
[ 261.890696][ T5054] do_new_mount+0x24a/0xa40
[ 261.895236][ T5054] __se_sys_mount+0x2d6/0x3c0
[ 261.899937][ T5054] ? __x64_sys_mount+0xc0/0xc0
[ 261.904732][ T5054] ? lockdep_hardirqs_on+0x94/0x140
[ 261.909947][ T5054] ? __x64_sys_mount+0x1c/0xc0
[ 261.914725][ T5054] do_syscall_64+0x4c/0xa0
[ 261.919162][ T5054] ? clear_bhb_loop+0x60/0xb0
[ 261.923863][ T5054] ? clear_bhb_loop+0x60/0xb0
[ 261.928568][ T5054] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 261.934492][ T5054] RIP: 0033:0x7f7c65d90eea
[ 261.938925][ T5054] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 261.958547][ T5054] RSP: 002b:00007fffbd32b338 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 261.966978][ T5054] RAX: ffffffffffffffda RBX: 00007fffbd32b3c0 RCX: 00007f7c65d90eea
[ 261.974965][ T5054] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fffbd32b380
[ 261.982946][ T5054] RBP: 0000200000000400 R08: 00007fffbd32b3c0 R09: 0000000002000000
[ 261.990936][ T5054] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 261.998917][ T5054] R13: 00007fffbd32b380 R14: 00000000000125d8 R15: 00002000000022c0
[ 262.006933][ T5054]
[ 262.010953][ T5054] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 262.024640][ T5054] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 262.032706][ T28] __se_sys_mount+0x2d6/0x3c0
[ 262.037545][ T28] ? __x64_sys_mount+0xc0/0xc0
[ 262.042360][ T28] ? lockdep_hardirqs_on+0x94/0x140
[ 262.047643][ T28] ? __x64_sys_mount+0x1c/0xc0
[ 262.052467][ T28] do_syscall_64+0x4c/0xa0
[ 262.056981][ T28] ? clear_bhb_loop+0x60/0xb0
[ 262.061704][ T28] ? clear_bhb_loop+0x60/0xb0
[ 262.066504][ T28] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 262.072464][ T28] RIP: 0033:0x7f32a0790eea
[ 262.076974][ T28] RSP: 002b:00007ffcd89139c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 262.085514][ T28] RAX: ffffffffffffffda RBX: 00007ffcd8913a50 RCX: 00007f32a0790eea
[ 262.093645][ T28] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffcd8913a10
[ 262.101746][ T28] RBP: 0000200000000400 R08: 00007ffcd8913a50 R09: 0000000002000000
[ 262.116804][ T28] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 262.125250][ T28] R13: 00007ffcd8913a10 R14: 00000000000125d8 R15: 00002000000022c0
[ 262.139133][ T28]
[ 262.152815][ T28] INFO: task gfs2_quotad:4530 blocked for more than 147 seconds.
[ 262.238263][ T4604] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 262.281239][ T4543] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 262.316026][ T28] Not tainted syzkaller #0
[ 262.321014][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 262.703888][ T5055] loop3: detected capacity change from 0 to 32768
[ 262.787048][ T5057] loop2: detected capacity change from 0 to 32768
[ 263.049451][ T5056] loop0: detected capacity change from 0 to 32768
[ 263.058888][ T28] task:gfs2_quotad state:D stack:28240 pid:4530 ppid:2 flags:0x00024000
[ 263.094278][ T5055] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 263.101876][ T5055] CPU: 1 PID: 5055 Comm: syz.3.472 Not tainted syzkaller #0
[ 263.109195][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 263.119271][ T5055] Call Trace:
[ 263.122569][ T5055]
[ 263.125526][ T5055] dump_stack_lvl+0x168/0x22e
[ 263.130248][ T5055] ? show_regs_print_info+0x12/0x12
[ 263.135484][ T5055] ? load_image+0x3b0/0x3b0
[ 263.140024][ T5055] sysfs_create_dir_ns+0x252/0x280
[ 263.145167][ T5055] ? sysfs_warn_dup+0xa0/0xa0
[ 263.149887][ T5055] ? kobject_set_name_vargs+0x5d/0x110
[ 263.155384][ T5055] ? do_raw_spin_unlock+0x11d/0x230
[ 263.160621][ T5055] kobject_add_internal+0x6b8/0xc80
[ 263.165862][ T5055] kobject_init_and_add+0x122/0x190
[ 263.171092][ T5055] ? lockdep_softirqs_off+0x420/0x420
[ 263.176505][ T5055] ? kobject_add+0x210/0x210
[ 263.181140][ T5055] ? __init_swait_queue_head+0xa5/0x150
[ 263.186731][ T5055] gfs2_sys_fs_add+0x234/0x480
[ 263.191532][ T5055] ? gfs2_recover_set+0x240/0x240
[ 263.196617][ T5055] ? snprintf+0xd7/0x120
[ 263.200874][ T5055] ? vscnprintf+0x80/0x80
[ 263.205220][ T5055] gfs2_fill_super+0x126f/0x1f80
[ 263.210195][ T5055] ? gfs2_reconfigure+0xcd0/0xcd0
[ 263.215250][ T5055] ? sb_set_blocksize+0xa5/0xe0
[ 263.220124][ T5055] get_tree_bdev+0x3f1/0x610
[ 263.224725][ T5055] ? gfs2_reconfigure+0xcd0/0xcd0
[ 263.229776][ T5055] gfs2_get_tree+0x4d/0x1e0
[ 263.234301][ T5055] vfs_get_tree+0x88/0x270
[ 263.238732][ T5055] do_new_mount+0x24a/0xa40
[ 263.243255][ T5055] __se_sys_mount+0x2d6/0x3c0
[ 263.247945][ T5055] ? __x64_sys_mount+0xc0/0xc0
[ 263.252730][ T5055] ? lockdep_hardirqs_on+0x94/0x140
[ 263.257944][ T5055] ? __x64_sys_mount+0x1c/0xc0
[ 263.262731][ T5055] do_syscall_64+0x4c/0xa0
[ 263.267162][ T5055] ? clear_bhb_loop+0x60/0xb0
[ 263.271850][ T5055] ? clear_bhb_loop+0x60/0xb0
[ 263.276540][ T5055] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 263.282452][ T5055] RIP: 0033:0x7f9734390eea
[ 263.286885][ T5055] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 263.306504][ T5055] RSP: 002b:00007ffe79605438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 263.314932][ T5055] RAX: ffffffffffffffda RBX: 00007ffe796054c0 RCX: 00007f9734390eea
[ 263.322923][ T5055] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe79605480
[ 263.330911][ T5055] RBP: 0000200000000400 R08: 00007ffe796054c0 R09: 0000000002000000
2026/01/01 13:11:29 executed programs: 466
[ 263.338899][ T5055] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 263.346895][ T5055] R13: 00007ffe79605480 R14: 00000000000125d8 R15: 00002000000022c0
[ 263.355029][ T5055]
[ 263.359446][ T5055] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 263.372633][ T5055] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 263.384989][ T5058] loop4: detected capacity change from 0 to 32768
[ 263.407395][ T5057] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 263.408770][ T5056] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 263.414862][ T5057] CPU: 0 PID: 5057 Comm: syz.2.474 Not tainted syzkaller #0
[ 263.429460][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 263.439530][ T5057] Call Trace:
[ 263.442836][ T5057]
[ 263.445790][ T5057] dump_stack_lvl+0x168/0x22e
[ 263.450509][ T5057] ? show_regs_print_info+0x12/0x12
[ 263.455755][ T5057] ? load_image+0x3b0/0x3b0
[ 263.460310][ T5057] sysfs_create_dir_ns+0x252/0x280
[ 263.465450][ T5057] ? sysfs_warn_dup+0xa0/0xa0
[ 263.470149][ T5057] ? kobject_set_name_vargs+0x5d/0x110
[ 263.475641][ T5057] ? do_raw_spin_unlock+0x11d/0x230
[ 263.480871][ T5057] kobject_add_internal+0x6b8/0xc80
[ 263.486108][ T5057] kobject_init_and_add+0x122/0x190
[ 263.491337][ T5057] ? lockdep_softirqs_off+0x420/0x420
[ 263.496751][ T5057] ? kobject_add+0x210/0x210
[ 263.501369][ T5057] ? __init_swait_queue_head+0xa5/0x150
[ 263.506946][ T5057] gfs2_sys_fs_add+0x234/0x480
[ 263.511747][ T5057] ? gfs2_recover_set+0x240/0x240
[ 263.516794][ T5057] ? snprintf+0xd7/0x120
[ 263.521087][ T5057] ? vscnprintf+0x80/0x80
[ 263.525451][ T5057] gfs2_fill_super+0x126f/0x1f80
[ 263.530427][ T5057] ? gfs2_reconfigure+0xcd0/0xcd0
[ 263.535488][ T5057] ? sb_set_blocksize+0xa5/0xe0
[ 263.540356][ T5057] get_tree_bdev+0x3f1/0x610
[ 263.544968][ T5057] ? gfs2_reconfigure+0xcd0/0xcd0
[ 263.550027][ T5057] gfs2_get_tree+0x4d/0x1e0
[ 263.554565][ T5057] vfs_get_tree+0x88/0x270
[ 263.559012][ T5057] do_new_mount+0x24a/0xa40
[ 263.563545][ T5057] __se_sys_mount+0x2d6/0x3c0
[ 263.568248][ T5057] ? __x64_sys_mount+0xc0/0xc0
[ 263.573033][ T5057] ? lockdep_hardirqs_on+0x94/0x140
[ 263.578524][ T5057] ? __x64_sys_mount+0x1c/0xc0
[ 263.583346][ T5057] do_syscall_64+0x4c/0xa0
[ 263.587792][ T5057] ? clear_bhb_loop+0x60/0xb0
[ 263.592491][ T5057] ? clear_bhb_loop+0x60/0xb0
[ 263.597189][ T5057] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 263.603118][ T5057] RIP: 0033:0x7ff99ff90eea
[ 263.607548][ T5057] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 263.627172][ T5057] RSP: 002b:00007ffdfe0b0888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 263.635602][ T5057] RAX: ffffffffffffffda RBX: 00007ffdfe0b0910 RCX: 00007ff99ff90eea
[ 263.643585][ T5057] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffdfe0b08d0
[ 263.651582][ T5057] RBP: 0000200000000400 R08: 00007ffdfe0b0910 R09: 0000000002000000
[ 263.659586][ T5057] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 263.667591][ T5057] R13: 00007ffdfe0b08d0 R14: 00000000000125d8 R15: 00002000000022c0
[ 263.675600][ T5057]
[ 263.678644][ T5056] CPU: 1 PID: 5056 Comm: syz.0.473 Not tainted syzkaller #0
[ 263.683122][ T5057] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 263.685956][ T5056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 263.685972][ T5056] Call Trace:
[ 263.685980][ T5056]
[ 263.685989][ T5056] dump_stack_lvl+0x168/0x22e
[ 263.699261][ T5057] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 263.709189][ T5056] ? show_regs_print_info+0x12/0x12
[ 263.709224][ T5056] ? load_image+0x3b0/0x3b0
[ 263.714176][ T5058] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 263.715451][ T5056] sysfs_create_dir_ns+0x252/0x280
[ 263.748844][ T5056] ? sysfs_warn_dup+0xa0/0xa0
[ 263.753549][ T5056] ? kobject_set_name_vargs+0x5d/0x110
[ 263.759029][ T5056] ? do_raw_spin_unlock+0x11d/0x230
[ 263.764262][ T5056] kobject_add_internal+0x6b8/0xc80
[ 263.769488][ T5056] kobject_init_and_add+0x122/0x190
[ 263.774708][ T5056] ? lockdep_softirqs_off+0x420/0x420
[ 263.780107][ T5056] ? kobject_add+0x210/0x210
[ 263.784716][ T5056] ? __init_swait_queue_head+0xa5/0x150
[ 263.790379][ T5056] gfs2_sys_fs_add+0x234/0x480
[ 263.795187][ T5056] ? gfs2_recover_set+0x240/0x240
[ 263.800251][ T5056] ? snprintf+0xd7/0x120
[ 263.804523][ T5056] ? vscnprintf+0x80/0x80
[ 263.808893][ T5056] gfs2_fill_super+0x126f/0x1f80
[ 263.813880][ T5056] ? gfs2_reconfigure+0xcd0/0xcd0
[ 263.818939][ T5056] ? sb_set_blocksize+0xa5/0xe0
[ 263.823818][ T5056] get_tree_bdev+0x3f1/0x610
[ 263.828431][ T5056] ? gfs2_reconfigure+0xcd0/0xcd0
[ 263.833483][ T5056] gfs2_get_tree+0x4d/0x1e0
[ 263.838022][ T5056] vfs_get_tree+0x88/0x270
[ 263.842468][ T5056] do_new_mount+0x24a/0xa40
[ 263.846995][ T5056] __se_sys_mount+0x2d6/0x3c0
[ 263.851718][ T5056] ? __x64_sys_mount+0xc0/0xc0
[ 263.856503][ T5056] ? lockdep_hardirqs_on+0x94/0x140
[ 263.861724][ T5056] ? __x64_sys_mount+0x1c/0xc0
[ 263.866521][ T5056] do_syscall_64+0x4c/0xa0
[ 263.870971][ T5056] ? clear_bhb_loop+0x60/0xb0
[ 263.875672][ T5056] ? clear_bhb_loop+0x60/0xb0
[ 263.880397][ T5056] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 263.886322][ T5056] RIP: 0033:0x7f7c65d90eea
[ 263.890752][ T5056] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 263.910376][ T5056] RSP: 002b:00007fffbd32b338 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 263.918809][ T5056] RAX: ffffffffffffffda RBX: 00007fffbd32b3c0 RCX: 00007f7c65d90eea
[ 263.926806][ T5056] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fffbd32b380
[ 263.934796][ T5056] RBP: 0000200000000400 R08: 00007fffbd32b3c0 R09: 0000000002000000
[ 263.942800][ T5056] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 263.950792][ T5056] R13: 00007fffbd32b380 R14: 00000000000125d8 R15: 00002000000022c0
[ 263.958798][ T5056]
[ 263.961832][ T5058] CPU: 0 PID: 5058 Comm: syz.4.471 Not tainted syzkaller #0
[ 263.964086][ T5056] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 263.969137][ T5058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 263.969152][ T5058] Call Trace:
[ 263.969161][ T5058]
[ 263.969170][ T5058] dump_stack_lvl+0x168/0x22e
[ 263.969209][ T5058] ? show_regs_print_info+0x12/0x12
[ 263.969242][ T5058] ? load_image+0x3b0/0x3b0
[ 263.969280][ T5058] sysfs_create_dir_ns+0x252/0x280
[ 263.969318][ T5058] ? sysfs_warn_dup+0xa0/0xa0
[ 263.969345][ T5058] ? kobject_set_name_vargs+0x5d/0x110
[ 263.969370][ T5058] ? do_raw_spin_unlock+0x11d/0x230
[ 263.969409][ T5058] kobject_add_internal+0x6b8/0xc80
[ 263.969440][ T5058] kobject_init_and_add+0x122/0x190
[ 263.969464][ T5058] ? lockdep_softirqs_off+0x420/0x420
[ 263.969497][ T5058] ? kobject_add+0x210/0x210
[ 263.969526][ T5058] ? __init_swait_queue_head+0xa5/0x150
[ 263.969560][ T5058] gfs2_sys_fs_add+0x234/0x480
[ 263.969594][ T5058] ? gfs2_recover_set+0x240/0x240
[ 263.969626][ T5058] ? snprintf+0xd7/0x120
[ 263.969655][ T5058] ? vscnprintf+0x80/0x80
[ 263.982828][ T5056] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 263.992840][ T5058] gfs2_fill_super+0x126f/0x1f80
[ 263.992923][ T5058] ? gfs2_reconfigure+0xcd0/0xcd0
[ 264.094940][ T5058] ? sb_set_blocksize+0xa5/0xe0
[ 264.099842][ T5058] get_tree_bdev+0x3f1/0x610
[ 264.104470][ T5058] ? gfs2_reconfigure+0xcd0/0xcd0
[ 264.109549][ T5058] gfs2_get_tree+0x4d/0x1e0
[ 264.114106][ T5058] vfs_get_tree+0x88/0x270
[ 264.118567][ T5058] do_new_mount+0x24a/0xa40
[ 264.123126][ T5058] __se_sys_mount+0x2d6/0x3c0
[ 264.127846][ T5058] ? __x64_sys_mount+0xc0/0xc0
[ 264.132648][ T5058] ? lockdep_hardirqs_on+0x94/0x140
[ 264.137903][ T5058] ? __x64_sys_mount+0x1c/0xc0
[ 264.142711][ T5058] do_syscall_64+0x4c/0xa0
[ 264.147167][ T5058] ? clear_bhb_loop+0x60/0xb0
[ 264.151879][ T5058] ? clear_bhb_loop+0x60/0xb0
[ 264.156592][ T5058] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 264.162522][ T5058] RIP: 0033:0x7f144ab90eea
[ 264.166968][ T5058] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 264.186610][ T5058] RSP: 002b:00007ffe72d43bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 264.195140][ T5058] RAX: ffffffffffffffda RBX: 00007ffe72d43c80 RCX: 00007f144ab90eea
[ 264.203144][ T5058] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe72d43c40
[ 264.211153][ T5058] RBP: 0000200000000400 R08: 00007ffe72d43c80 R09: 0000000002000000
[ 264.219155][ T5058] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 264.227152][ T5058] R13: 00007ffe72d43c40 R14: 00000000000125d8 R15: 00002000000022c0
[ 264.235186][ T5058]
[ 264.238317][ T5058] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 264.251484][ T5058] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 264.283209][ T28] Call Trace:
[ 264.335682][ T28]
[ 264.359019][ T28] __schedule+0x10ec/0x40b0
[ 264.363634][ T28] ? __sched_text_start+0x8/0x8
[ 264.565671][ T28] ? _raw_spin_lock_irqsave+0xb0/0xf0
[ 264.592498][ T28] ? _raw_spin_unlock_irqrestore+0x82/0x100
[ 264.635812][ T28] ? lockdep_hardirqs_on+0x94/0x140
[ 264.641115][ T28] ? _raw_spin_unlock_irqrestore+0xaa/0x100
[ 264.963786][ T5061] loop3: detected capacity change from 0 to 32768
[ 264.972356][ T5061] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 264.979994][ T5061] CPU: 1 PID: 5061 Comm: syz.3.477 Not tainted syzkaller #0
[ 264.987311][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 264.997434][ T5061] Call Trace:
[ 265.000754][ T5061]
[ 265.003714][ T5061] dump_stack_lvl+0x168/0x22e
[ 265.008445][ T5061] ? show_regs_print_info+0x12/0x12
[ 265.013700][ T5061] ? load_image+0x3b0/0x3b0
[ 265.018262][ T5061] sysfs_create_dir_ns+0x252/0x280
[ 265.023430][ T5061] ? sysfs_warn_dup+0xa0/0xa0
[ 265.028149][ T5061] ? kobject_set_name_vargs+0x5d/0x110
[ 265.033688][ T5061] ? do_raw_spin_unlock+0x11d/0x230
[ 265.038962][ T5061] kobject_add_internal+0x6b8/0xc80
[ 265.044220][ T5061] kobject_init_and_add+0x122/0x190
[ 265.047678][ T28] ? _raw_spin_unlock+0x40/0x40
[ 265.049475][ T5061] ? lockdep_softirqs_off+0x420/0x420
[ 265.049513][ T5061] ? kobject_add+0x210/0x210
[ 265.060425][ T28] schedule+0xb9/0x180
[ 265.064364][ T5061] ? __init_swait_queue_head+0xa5/0x150
[ 265.074030][ T5061] gfs2_sys_fs_add+0x234/0x480
[ 265.078839][ T5061] ? gfs2_recover_set+0x240/0x240
[ 265.083904][ T5061] ? snprintf+0xd7/0x120
[ 265.088173][ T5061] ? vscnprintf+0x80/0x80
[ 265.092537][ T5061] gfs2_fill_super+0x126f/0x1f80
[ 265.097520][ T5061] ? gfs2_reconfigure+0xcd0/0xcd0
[ 265.102573][ T5061] ? sb_set_blocksize+0xa5/0xe0
[ 265.107446][ T5061] get_tree_bdev+0x3f1/0x610
[ 265.112057][ T5061] ? gfs2_reconfigure+0xcd0/0xcd0
[ 265.117111][ T5061] gfs2_get_tree+0x4d/0x1e0
[ 265.121638][ T5061] vfs_get_tree+0x88/0x270
[ 265.126079][ T5061] do_new_mount+0x24a/0xa40
[ 265.130607][ T5061] __se_sys_mount+0x2d6/0x3c0
[ 265.135311][ T5061] ? __x64_sys_mount+0xc0/0xc0
[ 265.140095][ T5061] ? lockdep_hardirqs_on+0x94/0x140
[ 265.145308][ T5061] ? __x64_sys_mount+0x1c/0xc0
[ 265.150102][ T5061] do_syscall_64+0x4c/0xa0
[ 265.154534][ T5061] ? clear_bhb_loop+0x60/0xb0
[ 265.159226][ T5061] ? clear_bhb_loop+0x60/0xb0
[ 265.163921][ T5061] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 265.169847][ T5061] RIP: 0033:0x7f9734390eea
[ 265.174284][ T5061] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 265.193919][ T5061] RSP: 002b:00007ffe79605438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 265.202375][ T5061] RAX: ffffffffffffffda RBX: 00007ffe796054c0 RCX: 00007f9734390eea
[ 265.210363][ T5061] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe79605480
[ 265.218349][ T5061] RBP: 0000200000000400 R08: 00007ffe796054c0 R09: 0000000002000000
[ 265.226335][ T5061] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 265.234330][ T5061] R13: 00007ffe79605480 R14: 00000000000125d8 R15: 00002000000022c0
[ 265.242329][ T5061]
[ 265.245413][ T5061] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 265.258570][ T5061] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 265.325573][ T28] bit_wait+0xd/0xc0
[ 265.339744][ T28] __wait_on_bit+0xa8/0x2d0
[ 265.368253][ T28] ? out_of_line_wait_on_bit_lock+0x160/0x160
[ 265.398603][ T28] ? out_of_line_wait_on_bit_lock+0x160/0x160
[ 265.431008][ T28] out_of_line_wait_on_bit+0x11f/0x160
[ 265.455667][ T28] ? __gfs2_glock_dq+0x638/0xa20
[ 265.479377][ T28] ? __wait_on_bit+0x2d0/0x2d0
[ 265.504619][ T28] ? bit_waitqueue+0x30/0x30
[ 265.529855][ T28] ? do_raw_spin_unlock+0x11d/0x230
[ 265.552984][ T28] __gfs2_glock_dq+0x6b1/0xa20
[ 265.573414][ T28] gfs2_glock_dq+0x1a8/0x1c0
[ 265.603004][ T28] gfs2_glock_dq_uninit+0x24/0xe0
[ 265.617988][ T28] gfs2_statfs_sync+0x6fe/0x780
[ 265.623980][ T28] ? lock_chain_count+0x20/0x20
[ 265.628945][ T28] ? update_statfs+0x320/0x320
[ 265.633764][ T28] ? gfs2_quotad+0x380/0x670
[ 265.638483][ T28] gfs2_quotad+0x380/0x670
[ 265.662883][ T5062] loop4: detected capacity change from 0 to 32768
[ 265.670724][ T5062] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 265.678204][ T5062] CPU: 1 PID: 5062 Comm: syz.4.478 Not tainted syzkaller #0
[ 265.685523][ T5062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 265.695604][ T5062] Call Trace:
[ 265.698915][ T5062]
[ 265.701872][ T5062] dump_stack_lvl+0x168/0x22e
[ 265.706605][ T5062] ? show_regs_print_info+0x12/0x12
[ 265.711845][ T5062] ? load_image+0x3b0/0x3b0
[ 265.716401][ T5062] sysfs_create_dir_ns+0x252/0x280
[ 265.721558][ T5062] ? sysfs_warn_dup+0xa0/0xa0
[ 265.726275][ T5062] ? kobject_set_name_vargs+0x5d/0x110
[ 265.731794][ T5062] ? do_raw_spin_unlock+0x11d/0x230
[ 265.737136][ T5062] kobject_add_internal+0x6b8/0xc80
[ 265.742410][ T5062] kobject_init_and_add+0x122/0x190
[ 265.747635][ T5062] ? lockdep_softirqs_off+0x420/0x420
[ 265.753067][ T5062] ? kobject_add+0x210/0x210
[ 265.757714][ T5062] ? __init_swait_queue_head+0xa5/0x150
[ 265.763305][ T5062] gfs2_sys_fs_add+0x234/0x480
[ 265.768114][ T5062] ? gfs2_recover_set+0x240/0x240
[ 265.773182][ T5062] ? snprintf+0xd7/0x120
[ 265.777459][ T5062] ? vscnprintf+0x80/0x80
[ 265.781827][ T5062] gfs2_fill_super+0x126f/0x1f80
[ 265.786817][ T5062] ? gfs2_reconfigure+0xcd0/0xcd0
[ 265.791902][ T5062] ? sb_set_blocksize+0xa5/0xe0
[ 265.796793][ T5062] get_tree_bdev+0x3f1/0x610
[ 265.801500][ T5062] ? gfs2_reconfigure+0xcd0/0xcd0
[ 265.806564][ T5062] gfs2_get_tree+0x4d/0x1e0
[ 265.811117][ T5062] vfs_get_tree+0x88/0x270
[ 265.815596][ T5062] do_new_mount+0x24a/0xa40
[ 265.820166][ T5062] __se_sys_mount+0x2d6/0x3c0
[ 265.824882][ T5062] ? __x64_sys_mount+0xc0/0xc0
[ 265.829688][ T5062] ? lockdep_hardirqs_on+0x94/0x140
[ 265.834909][ T5062] ? __x64_sys_mount+0x1c/0xc0
[ 265.839703][ T5062] do_syscall_64+0x4c/0xa0
[ 265.844162][ T5062] ? clear_bhb_loop+0x60/0xb0
[ 265.848884][ T5062] ? clear_bhb_loop+0x60/0xb0
[ 265.853602][ T5062] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 265.859535][ T5062] RIP: 0033:0x7f144ab90eea
[ 265.863974][ T5062] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 265.883615][ T5062] RSP: 002b:00007ffe72d43bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 265.892066][ T5062] RAX: ffffffffffffffda RBX: 00007ffe72d43c80 RCX: 00007f144ab90eea
[ 265.900066][ T5062] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffe72d43c40
[ 265.908070][ T5062] RBP: 0000200000000400 R08: 00007ffe72d43c80 R09: 0000000002000000
[ 265.916109][ T5062] R10: 0000000002000000 R11: 0000000000000246 R12: 0000200000012500
[ 265.924126][ T5062] R13: 00007ffe72d43c40 R14: 00000000000125d8 R15: 00002000000022c0
[ 265.932149][ T5062]
[ 265.936035][ T5062] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 265.949706][ T5062] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 265.957748][ T28] ? gfs2_wake_up_statfs+0xc0/0xc0
[ 265.978034][ T28] ? _raw_spin_unlock_irqrestore+0x82/0x100
[ 265.984062][ T28] ? wake_bit_function+0x200/0x200
[ 265.993531][ T28] ? _raw_spin_unlock_irqrestore+0xaa/0x100
[ 265.999609][ T28] ? __kthread_parkme+0x162/0x1c0
[ 266.004713][ T28] kthread+0x29d/0x330
[ 266.013182][ T28] ? gfs2_wake_up_statfs+0xc0/0xc0
[ 266.019098][ T28] ? kthread_blkcg+0xd0/0xd0
[ 266.024003][ T28] ret_from_fork+0x1f/0x30
[ 266.028746][ T28]
[ 266.046066][ T28]
[ 266.046066][ T28] Showing all locks held in the system:
[ 266.054774][ T28] 3 locks held by kworker/u4:1/11:
[ 266.065143][ T28] #0: ffff888017479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160
[ 266.082755][ T28] #1: ffffc90000107d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160
[ 266.093690][ T28] #2: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50
[ 266.108350][ T28] 1 lock held by rcu_tasks_kthre/12:
[ 266.113717][ T28] #0: ffffffff8c92bab0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00
[ 266.131027][ T28] 1 lock held by rcu_tasks_trace/13:
[ 266.137513][ T28] #0: ffffffff8c92c2d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00
[ 266.156264][ T28] 1 lock held by khungtaskd/28:
[ 266.161269][ T28] #0: ffffffff8c92b120 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290
[ 266.176242][ T28] 2 locks held by kworker/u4:3/52:
[ 266.181393][ T28] #0: ffff888017479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160
[ 266.200012][ T28] #1: ffffc90000bd7d00 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160
[ 266.212984][ T28] 2 locks held by kworker/u4:4/62:
[ 266.224290][ T28] #0: ffff8880b8f3aad8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140
[ 266.236802][ T28] #1: ffff8880b8f27848 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x398/0x6d0
[ 266.252719][ T28] 3 locks held by kworker/0:2/126:
[ 266.262817][ T28] #0: ffff888017470938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160
[ 266.278448][ T28] #1: ffffc90002df7d00 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160
[ 266.292486][ T28] #2: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xa/0x20
[ 266.324498][ T28] 1 lock held by dhcpcd/3933:
[ 266.336389][ T28] #0: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x288/0x1af0
[ 266.361771][ T28] 2 locks held by getty/4029:
[ 266.381795][ T28] #0: ffff88814cb7f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 266.412491][ T28] #1: ffffc9000327b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41b/0x1380
[ 266.443389][ T28] 3 locks held by kworker/0:6/4333:
[ 266.463640][ T28] 2 locks held by kworker/1:12/4373:
[ 266.475817][ T28] #0: ffff888017472138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160
[ 266.505559][ T28] #1: ffffc90003347d00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160
[ 266.545670][ T28] 2 locks held by udevd/4429:
[ 266.555942][ T28] #0: ffff88801788d420 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: blkdev_read_iter+0x41d/0x570
[ 266.593964][ T28] #1: ffff88801788d5c0 (mapping.invalidate_lock){++++}-{3:3}, at: page_cache_ra_unbounded+0xd8/0x770
[ 266.645673][ T4430] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 267.079822][ T5065] loop0: detected capacity change from 0 to 32768
[ 267.103510][ T5064] loop4: detected capacity change from 0 to 32768
[ 267.127710][ T5065] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 267.135201][ T5065] CPU: 1 PID: 5065 Comm: syz.0.481 Not tainted syzkaller #0
[ 267.142527][ T5065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 267.152614][ T5065] Call Trace:
[ 267.155921][ T5065]
[ 267.158908][ T5065] dump_stack_lvl+0x168/0x22e
[ 267.163632][ T5065] ? show_regs_print_info+0x12/0x12
[ 267.168870][ T5065] ? load_image+0x3b0/0x3b0
[ 267.173418][ T5065] sysfs_create_dir_ns+0x252/0x280
[ 267.178575][ T5065] ? sysfs_warn_dup+0xa0/0xa0
[ 267.183284][ T5065] ? kobject_set_name_vargs+0x5d/0x110
[ 267.188769][ T5065] ? do_raw_spin_unlock+0x11d/0x230
[ 267.194021][ T5065] kobject_add_internal+0x6b8/0xc80
[ 267.199264][ T5065] kobject_init_and_add+0x122/0x190
[ 267.204489][ T5065] ? lockdep_softirqs_off+0x420/0x420
[ 267.209892][ T5065] ? kobject_add+0x210/0x210
[ 267.214511][ T5065] ? __init_swait_queue_head+0xa5/0x150
[ 267.220095][ T5065] gfs2_sys_fs_add+0x234/0x480
[ 267.224943][ T5065] ? gfs2_recover_set+0x240/0x240
[ 267.230006][ T5065] ? snprintf+0xd7/0x120
[ 267.234271][ T5065] ? vscnprintf+0x80/0x80
[ 267.238642][ T5065] gfs2_fill_super+0x126f/0x1f80
[ 267.243645][ T5065] ? gfs2_reconfigure+0xcd0/0xcd0
[ 267.248722][ T5065] ? sb_set_blocksize+0xa5/0xe0
[ 267.252933][ T4543] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 267.253600][ T5065] get_tree_bdev+0x3f1/0x610
[ 267.268037][ T5065] ? gfs2_reconfigure+0xcd0/0xcd0
[ 267.273099][ T5065] gfs2_get_tree+0x4d/0x1e0
[ 267.277634][ T5065] vfs_get_tree+0x88/0x270
[ 267.282073][ T5065] do_new_mount+0x24a/0xa40
[ 267.286608][ T5065] __se_sys_mount+0x2d6/0x3c0
[ 267.291302][ T5065] ? __x64_sys_mount+0xc0/0xc0
[ 267.296087][ T5065] ? lockdep_hardirqs_on+0x94/0x140
[ 267.301588][ T5065] ? __x64_sys_mount+0x1c/0xc0
[ 267.306371][ T5065] do_syscall_64+0x4c/0xa0
[ 267.310814][ T5065] ? clear_bhb_loop+0x60/0xb0
[ 267.315510][ T5065] ? clear_bhb_loop+0x60/0xb0
[ 267.320212][ T5065] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 267.326124][ T5065] RIP: 0033:0x7f7c65d90eea