_syscall_64+0x4c/0xa0
[ 228.206010][ T5713] ? clear_bhb_loop+0x30/0x80
[ 228.210672][ T5713] ? clear_bhb_loop+0x30/0x80
[ 228.215512][ T5713] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 228.221500][ T5713] RIP: 0033:0x7fc651a1118a
[ 228.225915][ T5713] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 228.245601][ T5713] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 228.254095][ T5713] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 228.262317][ T5713] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 228.270428][ T5713] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 228.278658][ T5713] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 228.286629][ T5713] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 228.294780][ T5713]
[ 228.299348][ T5713] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 228.312943][ T5713] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 228.670291][ T5715] loop1: detected capacity change from 0 to 32768
[ 228.689793][ T5715] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 228.697398][ T5715] CPU: 0 PID: 5715 Comm: syz.1.182 Not tainted syzkaller #0
[ 228.704707][ T5715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 228.714867][ T5715] Call Trace:
[ 228.718240][ T5715]
[ 228.721306][ T5715] dump_stack_lvl+0x188/0x250
[ 228.726102][ T5715] ? show_regs_print_info+0x20/0x20
[ 228.731575][ T5715] ? load_image+0x400/0x400
[ 228.736087][ T5715] sysfs_create_dir_ns+0x26a/0x290
[ 228.741283][ T5715] ? sysfs_warn_dup+0xa0/0xa0
[ 228.745962][ T5715] ? do_raw_spin_unlock+0x11d/0x230
[ 228.751248][ T5715] kobject_add_internal+0x6e0/0xd90
[ 228.756441][ T5715] kobject_init_and_add+0x128/0x190
[ 228.761639][ T5715] ? lockdep_softirqs_off+0x430/0x430
[ 228.767087][ T5715] ? kobject_add+0x230/0x230
[ 228.771884][ T5715] ? __init_swait_queue_head+0xa5/0x150
[ 228.777614][ T5715] gfs2_sys_fs_add+0x24f/0x4b0
[ 228.782476][ T5715] ? gfs2_recover_set+0x240/0x240
[ 228.787497][ T5715] ? snprintf+0xe5/0x140
[ 228.791730][ T5715] ? __free_pages+0x95/0x1a0
[ 228.796317][ T5715] ? vscnprintf+0x80/0x80
[ 228.800731][ T5715] gfs2_fill_super+0x120f/0x1f00
[ 228.805752][ T5715] ? gfs2_reconfigure+0xd30/0xd30
[ 228.810777][ T5715] ? sb_set_blocksize+0xa5/0xe0
[ 228.815624][ T5715] get_tree_bdev+0x3f1/0x610
[ 228.820200][ T5715] ? gfs2_reconfigure+0xd30/0xd30
[ 228.825208][ T5715] gfs2_get_tree+0x4d/0x1e0
[ 228.829691][ T5715] vfs_get_tree+0x88/0x270
[ 228.834120][ T5715] do_new_mount+0x24a/0xa40
[ 228.838707][ T5715] __se_sys_mount+0x2e3/0x3d0
[ 228.843376][ T5715] ? __x64_sys_mount+0xc0/0xc0
[ 228.848134][ T5715] ? lockdep_hardirqs_on+0x94/0x140
[ 228.853322][ T5715] ? __x64_sys_mount+0x1c/0xc0
[ 228.858172][ T5715] do_syscall_64+0x4c/0xa0
[ 228.862676][ T5715] ? clear_bhb_loop+0x30/0x80
[ 228.867400][ T5715] ? clear_bhb_loop+0x30/0x80
[ 228.872078][ T5715] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 228.878140][ T5715] RIP: 0033:0x7fc651a1118a
[ 228.882543][ T5715] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 228.902239][ T5715] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 228.910753][ T5715] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 228.918895][ T5715] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 228.926961][ T5715] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 228.935025][ T5715] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 228.942994][ T5715] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 228.951047][ T5715]
[ 228.955630][ T5715] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 228.968894][ T5715] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 229.263725][ T5717] loop1: detected capacity change from 0 to 32768
[ 229.310662][ T5717] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 229.318430][ T5717] CPU: 0 PID: 5717 Comm: syz.1.183 Not tainted syzkaller #0
[ 229.325823][ T5717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 229.336076][ T5717] Call Trace:
[ 229.339423][ T5717]
[ 229.342360][ T5717] dump_stack_lvl+0x188/0x250
[ 229.347058][ T5717] ? show_regs_print_info+0x20/0x20
[ 229.352270][ T5717] ? load_image+0x400/0x400
[ 229.356906][ T5717] sysfs_create_dir_ns+0x26a/0x290
[ 229.362137][ T5717] ? sysfs_warn_dup+0xa0/0xa0
[ 229.367047][ T5717] ? do_raw_spin_unlock+0x11d/0x230
[ 229.372438][ T5717] kobject_add_internal+0x6e0/0xd90
[ 229.377670][ T5717] kobject_init_and_add+0x128/0x190
[ 229.382966][ T5717] ? lockdep_softirqs_off+0x430/0x430
[ 229.388393][ T5717] ? kobject_add+0x230/0x230
[ 229.393089][ T5717] ? __init_swait_queue_head+0xa5/0x150
[ 229.398646][ T5717] gfs2_sys_fs_add+0x24f/0x4b0
[ 229.403574][ T5717] ? gfs2_recover_set+0x240/0x240
[ 229.408759][ T5717] ? snprintf+0xe5/0x140
[ 229.413087][ T5717] ? __free_pages+0x95/0x1a0
[ 229.417701][ T5717] ? vscnprintf+0x80/0x80
[ 229.422155][ T5717] gfs2_fill_super+0x120f/0x1f00
[ 229.427215][ T5717] ? gfs2_reconfigure+0xd30/0xd30
[ 229.432254][ T5717] ? sb_set_blocksize+0xa5/0xe0
[ 229.437116][ T5717] get_tree_bdev+0x3f1/0x610
[ 229.441709][ T5717] ? gfs2_reconfigure+0xd30/0xd30
[ 229.446753][ T5717] gfs2_get_tree+0x4d/0x1e0
[ 229.451371][ T5717] vfs_get_tree+0x88/0x270
[ 229.455968][ T5717] do_new_mount+0x24a/0xa40
[ 229.460577][ T5717] __se_sys_mount+0x2e3/0x3d0
[ 229.465242][ T5717] ? __x64_sys_mount+0xc0/0xc0
[ 229.470005][ T5717] ? lockdep_hardirqs_on+0x94/0x140
[ 229.475186][ T5717] ? __x64_sys_mount+0x1c/0xc0
[ 229.480028][ T5717] do_syscall_64+0x4c/0xa0
[ 229.484442][ T5717] ? clear_bhb_loop+0x30/0x80
[ 229.489108][ T5717] ? clear_bhb_loop+0x30/0x80
[ 229.493873][ T5717] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 229.499852][ T5717] RIP: 0033:0x7fc651a1118a
[ 229.504261][ T5717] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 229.524123][ T5717] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 229.532747][ T5717] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 229.540728][ T5717] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 229.548805][ T5717] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 229.556862][ T5717] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 229.565230][ T5717] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 229.573310][ T5717]
[ 229.577981][ T5717] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 229.591521][ T5717] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 229.901300][ T5719] loop1: detected capacity change from 0 to 32768
[ 229.995327][ T5719] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 230.002878][ T5719] CPU: 1 PID: 5719 Comm: syz.1.184 Not tainted syzkaller #0
[ 230.010270][ T5719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 230.020505][ T5719] Call Trace:
[ 230.023798][ T5719]
[ 230.026739][ T5719] dump_stack_lvl+0x188/0x250
[ 230.031431][ T5719] ? show_regs_print_info+0x20/0x20
[ 230.036632][ T5719] ? load_image+0x400/0x400
[ 230.041384][ T5719] sysfs_create_dir_ns+0x26a/0x290
[ 230.046483][ T5719] ? sysfs_warn_dup+0xa0/0xa0
[ 230.051143][ T5719] ? do_raw_spin_unlock+0x11d/0x230
[ 230.056503][ T5719] kobject_add_internal+0x6e0/0xd90
[ 230.061829][ T5719] kobject_init_and_add+0x128/0x190
[ 230.067045][ T5719] ? lockdep_softirqs_off+0x430/0x430
[ 230.072531][ T5719] ? kobject_add+0x230/0x230
[ 230.077197][ T5719] ? __init_swait_queue_head+0xa5/0x150
[ 230.082728][ T5719] gfs2_sys_fs_add+0x24f/0x4b0
[ 230.087678][ T5719] ? gfs2_recover_set+0x240/0x240
[ 230.092708][ T5719] ? snprintf+0xe5/0x140
[ 230.097065][ T5719] ? __free_pages+0x95/0x1a0
[ 230.101661][ T5719] ? vscnprintf+0x80/0x80
[ 230.105983][ T5719] gfs2_fill_super+0x120f/0x1f00
[ 230.110911][ T5719] ? gfs2_reconfigure+0xd30/0xd30
[ 230.116017][ T5719] ? sb_set_blocksize+0xa5/0xe0
[ 230.120963][ T5719] get_tree_bdev+0x3f1/0x610
[ 230.125564][ T5719] ? gfs2_reconfigure+0xd30/0xd30
[ 230.130595][ T5719] gfs2_get_tree+0x4d/0x1e0
[ 230.135091][ T5719] vfs_get_tree+0x88/0x270
[ 230.139501][ T5719] do_new_mount+0x24a/0xa40
[ 230.144015][ T5719] __se_sys_mount+0x2e3/0x3d0
[ 230.148681][ T5719] ? __x64_sys_mount+0xc0/0xc0
[ 230.153429][ T5719] ? lockdep_hardirqs_on+0x94/0x140
[ 230.158622][ T5719] ? __x64_sys_mount+0x1c/0xc0
[ 230.163369][ T5719] do_syscall_64+0x4c/0xa0
[ 230.167772][ T5719] ? clear_bhb_loop+0x30/0x80
[ 230.172425][ T5719] ? clear_bhb_loop+0x30/0x80
[ 230.177172][ T5719] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 230.183050][ T5719] RIP: 0033:0x7fc651a1118a
[ 230.187735][ T5719] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 230.207322][ T5719] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 230.215862][ T5719] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 230.223827][ T5719] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 230.231916][ T5719] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 230.239987][ T5719] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 230.247941][ T5719] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 230.256043][ T5719]
[ 230.266500][ T5719] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 230.280335][ T5719] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 230.600783][ T5721] loop1: detected capacity change from 0 to 32768
[ 230.659367][ T5721] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 230.666952][ T5721] CPU: 1 PID: 5721 Comm: syz.1.185 Not tainted syzkaller #0
[ 230.674334][ T5721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 230.684559][ T5721] Call Trace:
[ 230.687847][ T5721]
[ 230.691116][ T5721] dump_stack_lvl+0x188/0x250
[ 230.695817][ T5721] ? show_regs_print_info+0x20/0x20
[ 230.701036][ T5721] ? load_image+0x400/0x400
[ 230.705666][ T5721] sysfs_create_dir_ns+0x26a/0x290
[ 230.710801][ T5721] ? sysfs_warn_dup+0xa0/0xa0
[ 230.715518][ T5721] ? do_raw_spin_unlock+0x11d/0x230
[ 230.720998][ T5721] kobject_add_internal+0x6e0/0xd90
[ 230.726744][ T5721] kobject_init_and_add+0x128/0x190
[ 230.732050][ T5721] ? lockdep_softirqs_off+0x430/0x430
[ 230.737445][ T5721] ? kobject_add+0x230/0x230
[ 230.742033][ T5721] ? __init_swait_queue_head+0xa5/0x150
[ 230.747567][ T5721] gfs2_sys_fs_add+0x24f/0x4b0
[ 230.752408][ T5721] ? gfs2_recover_set+0x240/0x240
[ 230.757436][ T5721] ? snprintf+0xe5/0x140
[ 230.761837][ T5721] ? __free_pages+0x95/0x1a0
[ 230.767113][ T5721] ? vscnprintf+0x80/0x80
[ 230.771615][ T5721] gfs2_fill_super+0x120f/0x1f00
[ 230.776654][ T5721] ? gfs2_reconfigure+0xd30/0xd30
[ 230.782117][ T5721] ? sb_set_blocksize+0xa5/0xe0
[ 230.787140][ T5721] get_tree_bdev+0x3f1/0x610
[ 230.792074][ T5721] ? gfs2_reconfigure+0xd30/0xd30
[ 230.797159][ T5721] gfs2_get_tree+0x4d/0x1e0
[ 230.801659][ T5721] vfs_get_tree+0x88/0x270
[ 230.806094][ T5721] do_new_mount+0x24a/0xa40
[ 230.810600][ T5721] __se_sys_mount+0x2e3/0x3d0
[ 230.815536][ T5721] ? __x64_sys_mount+0xc0/0xc0
[ 230.820326][ T5721] ? lockdep_hardirqs_on+0x94/0x140
[ 230.825526][ T5721] ? __x64_sys_mount+0x1c/0xc0
[ 230.830390][ T5721] do_syscall_64+0x4c/0xa0
[ 230.834797][ T5721] ? clear_bhb_loop+0x30/0x80
[ 230.839463][ T5721] ? clear_bhb_loop+0x30/0x80
[ 230.844124][ T5721] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 230.850111][ T5721] RIP: 0033:0x7fc651a1118a
[ 230.854510][ T5721] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 230.874420][ T5721] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 230.882825][ T5721] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 230.890789][ T5721] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 230.898872][ T5721] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 230.906835][ T5721] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 230.914898][ T5721] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 230.923097][ T5721]
[ 230.928042][ T5721] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 230.941747][ T5721] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/02/04 18:21:27 executed programs: 171
[ 231.229164][ T5723] loop1: detected capacity change from 0 to 32768
[ 231.241066][ T5723] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 231.248778][ T5723] CPU: 1 PID: 5723 Comm: syz.1.186 Not tainted syzkaller #0
[ 231.256080][ T5723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 231.266325][ T5723] Call Trace:
[ 231.269702][ T5723]
[ 231.272813][ T5723] dump_stack_lvl+0x188/0x250
[ 231.277518][ T5723] ? show_regs_print_info+0x20/0x20
[ 231.282747][ T5723] ? load_image+0x400/0x400
[ 231.287484][ T5723] sysfs_create_dir_ns+0x26a/0x290
[ 231.292683][ T5723] ? sysfs_warn_dup+0xa0/0xa0
[ 231.297360][ T5723] ? do_raw_spin_unlock+0x11d/0x230
[ 231.302732][ T5723] kobject_add_internal+0x6e0/0xd90
[ 231.308388][ T5723] kobject_init_and_add+0x128/0x190
[ 231.313579][ T5723] ? lockdep_softirqs_off+0x430/0x430
[ 231.319027][ T5723] ? kobject_add+0x230/0x230
[ 231.323614][ T5723] ? __init_swait_queue_head+0xa5/0x150
[ 231.329347][ T5723] gfs2_sys_fs_add+0x24f/0x4b0
[ 231.334105][ T5723] ? gfs2_recover_set+0x240/0x240
[ 231.339255][ T5723] ? snprintf+0xe5/0x140
[ 231.343480][ T5723] ? __free_pages+0x95/0x1a0
[ 231.348065][ T5723] ? vscnprintf+0x80/0x80
[ 231.352377][ T5723] gfs2_fill_super+0x120f/0x1f00
[ 231.357395][ T5723] ? gfs2_reconfigure+0xd30/0xd30
[ 231.362522][ T5723] ? sb_set_blocksize+0xa5/0xe0
[ 231.367370][ T5723] get_tree_bdev+0x3f1/0x610
[ 231.371946][ T5723] ? gfs2_reconfigure+0xd30/0xd30
[ 231.376984][ T5723] gfs2_get_tree+0x4d/0x1e0
[ 231.381485][ T5723] vfs_get_tree+0x88/0x270
[ 231.385895][ T5723] do_new_mount+0x24a/0xa40
[ 231.390569][ T5723] __se_sys_mount+0x2e3/0x3d0
[ 231.395236][ T5723] ? __x64_sys_mount+0xc0/0xc0
[ 231.400071][ T5723] ? lockdep_hardirqs_on+0x94/0x140
[ 231.405424][ T5723] ? __x64_sys_mount+0x1c/0xc0
[ 231.410267][ T5723] do_syscall_64+0x4c/0xa0
[ 231.414683][ T5723] ? clear_bhb_loop+0x30/0x80
[ 231.419450][ T5723] ? clear_bhb_loop+0x30/0x80
[ 231.424113][ T5723] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 231.430017][ T5723] RIP: 0033:0x7fc651a1118a
[ 231.434413][ T5723] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 231.454006][ T5723] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 231.462408][ T5723] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 231.470667][ T5723] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 231.478625][ T5723] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 231.486584][ T5723] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 231.494726][ T5723] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 231.502966][ T5723]
[ 231.509804][ T5723] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 231.523737][ T5723] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 231.836175][ T5725] loop1: detected capacity change from 0 to 32768
[ 231.901650][ T5725] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 231.909355][ T5725] CPU: 0 PID: 5725 Comm: syz.1.187 Not tainted syzkaller #0
[ 231.916746][ T5725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 231.927066][ T5725] Call Trace:
[ 231.930361][ T5725]
[ 231.933306][ T5725] dump_stack_lvl+0x188/0x250
[ 231.938000][ T5725] ? show_regs_print_info+0x20/0x20
[ 231.943304][ T5725] ? load_image+0x400/0x400
[ 231.947831][ T5725] sysfs_create_dir_ns+0x26a/0x290
[ 231.953118][ T5725] ? sysfs_warn_dup+0xa0/0xa0
[ 231.957807][ T5725] ? do_raw_spin_unlock+0x11d/0x230
[ 231.963026][ T5725] kobject_add_internal+0x6e0/0xd90
[ 231.968248][ T5725] kobject_init_and_add+0x128/0x190
[ 231.973477][ T5725] ? lockdep_softirqs_off+0x430/0x430
[ 231.978959][ T5725] ? kobject_add+0x230/0x230
[ 231.983569][ T5725] ? __init_swait_queue_head+0xa5/0x150
[ 231.989316][ T5725] gfs2_sys_fs_add+0x24f/0x4b0
[ 231.994126][ T5725] ? gfs2_recover_set+0x240/0x240
[ 231.999248][ T5725] ? snprintf+0xe5/0x140
[ 232.003476][ T5725] ? __free_pages+0x95/0x1a0
[ 232.008062][ T5725] ? vscnprintf+0x80/0x80
[ 232.012404][ T5725] gfs2_fill_super+0x120f/0x1f00
[ 232.017357][ T5725] ? gfs2_reconfigure+0xd30/0xd30
[ 232.022388][ T5725] ? sb_set_blocksize+0xa5/0xe0
[ 232.027237][ T5725] get_tree_bdev+0x3f1/0x610
[ 232.031834][ T5725] ? gfs2_reconfigure+0xd30/0xd30
[ 232.036847][ T5725] gfs2_get_tree+0x4d/0x1e0
[ 232.041518][ T5725] vfs_get_tree+0x88/0x270
[ 232.045946][ T5725] do_new_mount+0x24a/0xa40
[ 232.050583][ T5725] __se_sys_mount+0x2e3/0x3d0
[ 232.055359][ T5725] ? __x64_sys_mount+0xc0/0xc0
[ 232.060288][ T5725] ? lockdep_hardirqs_on+0x94/0x140
[ 232.065485][ T5725] ? __x64_sys_mount+0x1c/0xc0
[ 232.070248][ T5725] do_syscall_64+0x4c/0xa0
[ 232.074647][ T5725] ? clear_bhb_loop+0x30/0x80
[ 232.079402][ T5725] ? clear_bhb_loop+0x30/0x80
[ 232.084065][ T5725] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 232.089950][ T5725] RIP: 0033:0x7fc651a1118a
[ 232.094426][ T5725] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 232.114401][ T5725] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 232.122911][ T5725] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 232.130980][ T5725] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 232.139035][ T5725] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 232.147172][ T5725] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 232.155346][ T5725] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 232.163417][ T5725]
[ 232.167514][ T5725] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 232.180876][ T5725] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 232.483537][ T5727] loop1: detected capacity change from 0 to 32768
[ 232.534096][ T5727] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 232.542668][ T5727] CPU: 0 PID: 5727 Comm: syz.1.188 Not tainted syzkaller #0
[ 232.550046][ T5727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 232.560546][ T5727] Call Trace:
[ 232.563841][ T5727]
[ 232.566792][ T5727] dump_stack_lvl+0x188/0x250
[ 232.571491][ T5727] ? show_regs_print_info+0x20/0x20
[ 232.576716][ T5727] ? load_image+0x400/0x400
[ 232.581335][ T5727] sysfs_create_dir_ns+0x26a/0x290
[ 232.586553][ T5727] ? sysfs_warn_dup+0xa0/0xa0
[ 232.591245][ T5727] ? do_raw_spin_unlock+0x11d/0x230
[ 232.596458][ T5727] kobject_add_internal+0x6e0/0xd90
[ 232.601770][ T5727] kobject_init_and_add+0x128/0x190
[ 232.606983][ T5727] ? lockdep_softirqs_off+0x430/0x430
[ 232.612631][ T5727] ? kobject_add+0x230/0x230
[ 232.617426][ T5727] ? __init_swait_queue_head+0xa5/0x150
[ 232.623034][ T5727] gfs2_sys_fs_add+0x24f/0x4b0
[ 232.627901][ T5727] ? gfs2_recover_set+0x240/0x240
[ 232.633093][ T5727] ? snprintf+0xe5/0x140
[ 232.637322][ T5727] ? __free_pages+0x95/0x1a0
[ 232.641894][ T5727] ? vscnprintf+0x80/0x80
[ 232.646213][ T5727] gfs2_fill_super+0x120f/0x1f00
[ 232.651228][ T5727] ? gfs2_reconfigure+0xd30/0xd30
[ 232.656331][ T5727] ? sb_set_blocksize+0xa5/0xe0
[ 232.661168][ T5727] get_tree_bdev+0x3f1/0x610
[ 232.665834][ T5727] ? gfs2_reconfigure+0xd30/0xd30
[ 232.670835][ T5727] gfs2_get_tree+0x4d/0x1e0
[ 232.675321][ T5727] vfs_get_tree+0x88/0x270
[ 232.680176][ T5727] do_new_mount+0x24a/0xa40
[ 232.684660][ T5727] __se_sys_mount+0x2e3/0x3d0
[ 232.689407][ T5727] ? __x64_sys_mount+0xc0/0xc0
[ 232.694158][ T5727] ? lockdep_hardirqs_on+0x94/0x140
[ 232.699347][ T5727] ? __x64_sys_mount+0x1c/0xc0
[ 232.704363][ T5727] do_syscall_64+0x4c/0xa0
[ 232.708884][ T5727] ? clear_bhb_loop+0x30/0x80
[ 232.713633][ T5727] ? clear_bhb_loop+0x30/0x80
[ 232.718377][ T5727] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 232.724379][ T5727] RIP: 0033:0x7fc651a1118a
[ 232.728786][ T5727] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 232.748860][ T5727] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 232.757281][ T5727] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 232.765267][ T5727] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 232.773346][ T5727] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 232.781654][ T5727] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 232.789968][ T5727] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 232.798406][ T5727]
[ 232.802454][ T5727] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 232.815775][ T5727] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 233.136754][ T5729] loop1: detected capacity change from 0 to 32768
[ 233.153898][ T5729] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 233.161336][ T5729] CPU: 0 PID: 5729 Comm: syz.1.189 Not tainted syzkaller #0
[ 233.168716][ T5729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 233.178784][ T5729] Call Trace:
[ 233.182163][ T5729]
[ 233.185103][ T5729] dump_stack_lvl+0x188/0x250
[ 233.189793][ T5729] ? show_regs_print_info+0x20/0x20
[ 233.195005][ T5729] ? load_image+0x400/0x400
[ 233.199534][ T5729] sysfs_create_dir_ns+0x26a/0x290
[ 233.204659][ T5729] ? sysfs_warn_dup+0xa0/0xa0
[ 233.209347][ T5729] ? do_raw_spin_unlock+0x11d/0x230
[ 233.214654][ T5729] kobject_add_internal+0x6e0/0xd90
[ 233.220319][ T5729] kobject_init_and_add+0x128/0x190
[ 233.225535][ T5729] ? lockdep_softirqs_off+0x430/0x430
[ 233.230926][ T5729] ? kobject_add+0x230/0x230
[ 233.235529][ T5729] ? __init_swait_queue_head+0xa5/0x150
[ 233.241283][ T5729] gfs2_sys_fs_add+0x24f/0x4b0
[ 233.246083][ T5729] ? gfs2_recover_set+0x240/0x240
[ 233.251093][ T5729] ? snprintf+0xe5/0x140
[ 233.255320][ T5729] ? __free_pages+0x95/0x1a0
[ 233.259984][ T5729] ? vscnprintf+0x80/0x80
[ 233.264414][ T5729] gfs2_fill_super+0x120f/0x1f00
[ 233.269470][ T5729] ? gfs2_reconfigure+0xd30/0xd30
[ 233.274518][ T5729] ? sb_set_blocksize+0xa5/0xe0
[ 233.279528][ T5729] get_tree_bdev+0x3f1/0x610
[ 233.284137][ T5729] ? gfs2_reconfigure+0xd30/0xd30
[ 233.289416][ T5729] gfs2_get_tree+0x4d/0x1e0
[ 233.293948][ T5729] vfs_get_tree+0x88/0x270
[ 233.298410][ T5729] do_new_mount+0x24a/0xa40
[ 233.302913][ T5729] __se_sys_mount+0x2e3/0x3d0
[ 233.308007][ T5729] ? __x64_sys_mount+0xc0/0xc0
[ 233.312761][ T5729] ? lockdep_hardirqs_on+0x94/0x140
[ 233.318279][ T5729] ? __x64_sys_mount+0x1c/0xc0
[ 233.323063][ T5729] do_syscall_64+0x4c/0xa0
[ 233.327863][ T5729] ? clear_bhb_loop+0x30/0x80
[ 233.332647][ T5729] ? clear_bhb_loop+0x30/0x80
[ 233.337445][ T5729] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 233.343781][ T5729] RIP: 0033:0x7fc651a1118a
[ 233.348553][ T5729] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 233.368761][ T5729] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 233.377288][ T5729] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 233.385482][ T5729] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 233.393533][ T5729] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 233.401506][ T5729] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 233.409660][ T5729] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 233.417816][ T5729]
[ 233.422077][ T5729] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 233.435725][ T5729] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 233.749187][ T5731] loop1: detected capacity change from 0 to 32768
[ 233.855393][ T5731] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 233.863930][ T5731] CPU: 1 PID: 5731 Comm: syz.1.190 Not tainted syzkaller #0
[ 233.871240][ T5731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 233.881296][ T5731] Call Trace:
[ 233.884586][ T5731]
[ 233.887533][ T5731] dump_stack_lvl+0x188/0x250
[ 233.892382][ T5731] ? show_regs_print_info+0x20/0x20
[ 233.897611][ T5731] ? load_image+0x400/0x400
[ 233.902243][ T5731] sysfs_create_dir_ns+0x26a/0x290
[ 233.907541][ T5731] ? sysfs_warn_dup+0xa0/0xa0
[ 233.912230][ T5731] ? do_raw_spin_unlock+0x11d/0x230
[ 233.917516][ T5731] kobject_add_internal+0x6e0/0xd90
[ 233.922712][ T5731] kobject_init_and_add+0x128/0x190
[ 233.927895][ T5731] ? lockdep_softirqs_off+0x430/0x430
[ 233.933425][ T5731] ? kobject_add+0x230/0x230
[ 233.938181][ T5731] ? __init_swait_queue_head+0xa5/0x150
[ 233.943859][ T5731] gfs2_sys_fs_add+0x24f/0x4b0
[ 233.948625][ T5731] ? gfs2_recover_set+0x240/0x240
[ 233.953726][ T5731] ? snprintf+0xe5/0x140
[ 233.958074][ T5731] ? __free_pages+0x95/0x1a0
[ 233.962669][ T5731] ? vscnprintf+0x80/0x80
[ 233.967077][ T5731] gfs2_fill_super+0x120f/0x1f00
[ 233.972033][ T5731] ? gfs2_reconfigure+0xd30/0xd30
[ 233.977137][ T5731] ? sb_set_blocksize+0xa5/0xe0
[ 233.982078][ T5731] get_tree_bdev+0x3f1/0x610
[ 233.986752][ T5731] ? gfs2_reconfigure+0xd30/0xd30
[ 233.991762][ T5731] gfs2_get_tree+0x4d/0x1e0
[ 233.996245][ T5731] vfs_get_tree+0x88/0x270
[ 234.000641][ T5731] do_new_mount+0x24a/0xa40
[ 234.005128][ T5731] __se_sys_mount+0x2e3/0x3d0
[ 234.009787][ T5731] ? __x64_sys_mount+0xc0/0xc0
[ 234.014529][ T5731] ? lockdep_hardirqs_on+0x94/0x140
[ 234.019803][ T5731] ? __x64_sys_mount+0x1c/0xc0
[ 234.024636][ T5731] do_syscall_64+0x4c/0xa0
[ 234.029378][ T5731] ? clear_bhb_loop+0x30/0x80
[ 234.034036][ T5731] ? clear_bhb_loop+0x30/0x80
[ 234.038784][ T5731] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 234.044660][ T5731] RIP: 0033:0x7fc651a1118a
[ 234.049160][ T5731] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 234.069231][ T5731] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 234.077742][ T5731] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 234.086225][ T5731] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 234.094324][ T5731] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 234.102379][ T5731] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 234.110659][ T5731] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 234.118640][ T5731]
[ 234.123127][ T5731] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 234.136492][ T5731] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 234.471198][ T5733] loop1: detected capacity change from 0 to 32768
[ 234.545408][ T5733] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 234.553922][ T5733] CPU: 0 PID: 5733 Comm: syz.1.191 Not tainted syzkaller #0
[ 234.561232][ T5733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 234.571302][ T5733] Call Trace:
[ 234.574592][ T5733]
[ 234.577540][ T5733] dump_stack_lvl+0x188/0x250
[ 234.582334][ T5733] ? show_regs_print_info+0x20/0x20
[ 234.587574][ T5733] ? load_image+0x400/0x400
[ 234.592108][ T5733] sysfs_create_dir_ns+0x26a/0x290
[ 234.597248][ T5733] ? sysfs_warn_dup+0xa0/0xa0
[ 234.601938][ T5733] ? do_raw_spin_unlock+0x11d/0x230
[ 234.607214][ T5733] kobject_add_internal+0x6e0/0xd90
[ 234.612515][ T5733] kobject_init_and_add+0x128/0x190
[ 234.617739][ T5733] ? lockdep_softirqs_off+0x430/0x430
[ 234.623234][ T5733] ? kobject_add+0x230/0x230
[ 234.627915][ T5733] ? __init_swait_queue_head+0xa5/0x150
[ 234.633494][ T5733] gfs2_sys_fs_add+0x24f/0x4b0
[ 234.638271][ T5733] ? gfs2_recover_set+0x240/0x240
[ 234.643541][ T5733] ? snprintf+0xe5/0x140
[ 234.647857][ T5733] ? __free_pages+0x95/0x1a0
[ 234.652433][ T5733] ? vscnprintf+0x80/0x80
[ 234.656754][ T5733] gfs2_fill_super+0x120f/0x1f00
[ 234.661713][ T5733] ? gfs2_reconfigure+0xd30/0xd30
[ 234.666745][ T5733] ? sb_set_blocksize+0xa5/0xe0
[ 234.671625][ T5733] get_tree_bdev+0x3f1/0x610
[ 234.676302][ T5733] ? gfs2_reconfigure+0xd30/0xd30
[ 234.681455][ T5733] gfs2_get_tree+0x4d/0x1e0
[ 234.686046][ T5733] vfs_get_tree+0x88/0x270
[ 234.690617][ T5733] do_new_mount+0x24a/0xa40
[ 234.695117][ T5733] __se_sys_mount+0x2e3/0x3d0
[ 234.699889][ T5733] ? __x64_sys_mount+0xc0/0xc0
[ 234.704644][ T5733] ? lockdep_hardirqs_on+0x94/0x140
[ 234.709841][ T5733] ? __x64_sys_mount+0x1c/0xc0
[ 234.714690][ T5733] do_syscall_64+0x4c/0xa0
[ 234.719109][ T5733] ? clear_bhb_loop+0x30/0x80
[ 234.723859][ T5733] ? clear_bhb_loop+0x30/0x80
[ 234.728674][ T5733] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 234.734736][ T5733] RIP: 0033:0x7fc651a1118a
[ 234.739233][ T5733] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 234.759469][ T5733] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 234.768055][ T5733] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 234.776384][ T5733] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 234.784615][ T5733] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 234.792689][ T5733] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 234.800652][ T5733] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 234.808713][ T5733]
[ 234.813059][ T5733] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 234.826660][ T5733] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.150844][ T5735] loop1: detected capacity change from 0 to 32768
[ 235.189594][ T5735] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.197072][ T5735] CPU: 0 PID: 5735 Comm: syz.1.192 Not tainted syzkaller #0
[ 235.204512][ T5735] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 235.214592][ T5735] Call Trace:
[ 235.217971][ T5735]
[ 235.220911][ T5735] dump_stack_lvl+0x188/0x250
[ 235.225604][ T5735] ? show_regs_print_info+0x20/0x20
[ 235.230819][ T5735] ? load_image+0x400/0x400
[ 235.235354][ T5735] sysfs_create_dir_ns+0x26a/0x290
[ 235.240641][ T5735] ? sysfs_warn_dup+0xa0/0xa0
[ 235.245426][ T5735] ? do_raw_spin_unlock+0x11d/0x230
[ 235.250647][ T5735] kobject_add_internal+0x6e0/0xd90
[ 235.256134][ T5735] kobject_init_and_add+0x128/0x190
[ 235.261345][ T5735] ? lockdep_softirqs_off+0x430/0x430
[ 235.266745][ T5735] ? kobject_add+0x230/0x230
[ 235.271333][ T5735] ? __init_swait_queue_head+0xa5/0x150
[ 235.276869][ T5735] gfs2_sys_fs_add+0x24f/0x4b0
[ 235.281710][ T5735] ? gfs2_recover_set+0x240/0x240
[ 235.286930][ T5735] ? snprintf+0xe5/0x140
[ 235.291337][ T5735] ? __free_pages+0x95/0x1a0
[ 235.296052][ T5735] ? vscnprintf+0x80/0x80
[ 235.300492][ T5735] gfs2_fill_super+0x120f/0x1f00
[ 235.305421][ T5735] ? gfs2_reconfigure+0xd30/0xd30
[ 235.310621][ T5735] ? sb_set_blocksize+0xa5/0xe0
[ 235.315495][ T5735] get_tree_bdev+0x3f1/0x610
[ 235.320086][ T5735] ? gfs2_reconfigure+0xd30/0xd30
[ 235.325103][ T5735] gfs2_get_tree+0x4d/0x1e0
[ 235.329688][ T5735] vfs_get_tree+0x88/0x270
[ 235.334119][ T5735] do_new_mount+0x24a/0xa40
[ 235.338714][ T5735] __se_sys_mount+0x2e3/0x3d0
[ 235.343444][ T5735] ? __x64_sys_mount+0xc0/0xc0
[ 235.348207][ T5735] ? lockdep_hardirqs_on+0x94/0x140
[ 235.353489][ T5735] ? __x64_sys_mount+0x1c/0xc0
[ 235.358261][ T5735] do_syscall_64+0x4c/0xa0
[ 235.362678][ T5735] ? clear_bhb_loop+0x30/0x80
[ 235.367436][ T5735] ? clear_bhb_loop+0x30/0x80
[ 235.372215][ T5735] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 235.378518][ T5735] RIP: 0033:0x7fc651a1118a
[ 235.383018][ T5735] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 235.403203][ T5735] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.411748][ T5735] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 235.419794][ T5735] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 235.427782][ T5735] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 235.435738][ T5735] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 235.443699][ T5735] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 235.451789][ T5735]
[ 235.458416][ T5735] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.473090][ T5735] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.782410][ T5737] loop1: detected capacity change from 0 to 32768
[ 235.844699][ T5737] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 235.852924][ T5737] CPU: 0 PID: 5737 Comm: syz.1.193 Not tainted syzkaller #0
[ 235.860407][ T5737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 235.870672][ T5737] Call Trace:
[ 235.874092][ T5737]
[ 235.877118][ T5737] dump_stack_lvl+0x188/0x250
[ 235.881808][ T5737] ? show_regs_print_info+0x20/0x20
[ 235.887023][ T5737] ? load_image+0x400/0x400
[ 235.891653][ T5737] sysfs_create_dir_ns+0x26a/0x290
[ 235.896790][ T5737] ? sysfs_warn_dup+0xa0/0xa0
[ 235.901590][ T5737] ? do_raw_spin_unlock+0x11d/0x230
[ 235.906994][ T5737] kobject_add_internal+0x6e0/0xd90
[ 235.912339][ T5737] kobject_init_and_add+0x128/0x190
[ 235.917561][ T5737] ? lockdep_softirqs_off+0x430/0x430
[ 235.922942][ T5737] ? kobject_add+0x230/0x230
[ 235.927525][ T5737] ? __init_swait_queue_head+0xa5/0x150
[ 235.933318][ T5737] gfs2_sys_fs_add+0x24f/0x4b0
[ 235.938205][ T5737] ? gfs2_recover_set+0x240/0x240
[ 235.943297][ T5737] ? snprintf+0xe5/0x140
[ 235.947780][ T5737] ? __free_pages+0x95/0x1a0
[ 235.952419][ T5737] ? vscnprintf+0x80/0x80
[ 235.956742][ T5737] gfs2_fill_super+0x120f/0x1f00
[ 235.961756][ T5737] ? gfs2_reconfigure+0xd30/0xd30
[ 235.967033][ T5737] ? sb_set_blocksize+0xa5/0xe0
[ 235.971869][ T5737] get_tree_bdev+0x3f1/0x610
[ 235.976461][ T5737] ? gfs2_reconfigure+0xd30/0xd30
[ 235.981473][ T5737] gfs2_get_tree+0x4d/0x1e0
[ 235.985985][ T5737] vfs_get_tree+0x88/0x270
[ 235.990611][ T5737] do_new_mount+0x24a/0xa40
[ 235.995122][ T5737] __se_sys_mount+0x2e3/0x3d0
[ 235.999895][ T5737] ? __x64_sys_mount+0xc0/0xc0
[ 236.004738][ T5737] ? lockdep_hardirqs_on+0x94/0x140
[ 236.009922][ T5737] ? __x64_sys_mount+0x1c/0xc0
[ 236.014754][ T5737] do_syscall_64+0x4c/0xa0
[ 236.019155][ T5737] ? clear_bhb_loop+0x30/0x80
[ 236.023987][ T5737] ? clear_bhb_loop+0x30/0x80
[ 236.028662][ T5737] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 236.034626][ T5737] RIP: 0033:0x7fc651a1118a
[ 236.039021][ T5737] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 236.059309][ T5737] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 236.067978][ T5737] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 236.076195][ T5737] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 236.084422][ T5737] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 236.092410][ T5737] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 236.100386][ T5737] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 236.108375][ T5737]
[ 236.112984][ T5737] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 236.126249][ T5737] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/02/04 18:21:32 executed programs: 179
[ 236.440080][ T5739] loop1: detected capacity change from 0 to 32768
[ 236.500246][ T5739] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 236.507698][ T5739] CPU: 0 PID: 5739 Comm: syz.1.194 Not tainted syzkaller #0
[ 236.515258][ T5739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 236.525499][ T5739] Call Trace:
[ 236.528793][ T5739]
[ 236.531793][ T5739] dump_stack_lvl+0x188/0x250
[ 236.536598][ T5739] ? show_regs_print_info+0x20/0x20
[ 236.541904][ T5739] ? load_image+0x400/0x400
[ 236.546434][ T5739] sysfs_create_dir_ns+0x26a/0x290
[ 236.551729][ T5739] ? sysfs_warn_dup+0xa0/0xa0
[ 236.556507][ T5739] ? do_raw_spin_unlock+0x11d/0x230
[ 236.561912][ T5739] kobject_add_internal+0x6e0/0xd90
[ 236.567235][ T5739] kobject_init_and_add+0x128/0x190
[ 236.572452][ T5739] ? lockdep_softirqs_off+0x430/0x430
[ 236.577932][ T5739] ? kobject_add+0x230/0x230
[ 236.582656][ T5739] ? __init_swait_queue_head+0xa5/0x150
[ 236.588818][ T5739] gfs2_sys_fs_add+0x24f/0x4b0
[ 236.593626][ T5739] ? gfs2_recover_set+0x240/0x240
[ 236.598886][ T5739] ? snprintf+0xe5/0x140
[ 236.603130][ T5739] ? __free_pages+0x95/0x1a0
[ 236.607710][ T5739] ? vscnprintf+0x80/0x80
[ 236.612230][ T5739] gfs2_fill_super+0x120f/0x1f00
[ 236.617275][ T5739] ? gfs2_reconfigure+0xd30/0xd30
[ 236.622296][ T5739] ? sb_set_blocksize+0xa5/0xe0
[ 236.627234][ T5739] get_tree_bdev+0x3f1/0x610
[ 236.631858][ T5739] ? gfs2_reconfigure+0xd30/0xd30
[ 236.636966][ T5739] gfs2_get_tree+0x4d/0x1e0
[ 236.641468][ T5739] vfs_get_tree+0x88/0x270
[ 236.645967][ T5739] do_new_mount+0x24a/0xa40
[ 236.650497][ T5739] __se_sys_mount+0x2e3/0x3d0
[ 236.655261][ T5739] ? __x64_sys_mount+0xc0/0xc0
[ 236.660419][ T5739] ? lockdep_hardirqs_on+0x94/0x140
[ 236.666043][ T5739] ? __x64_sys_mount+0x1c/0xc0
[ 236.670916][ T5739] do_syscall_64+0x4c/0xa0
[ 236.675340][ T5739] ? clear_bhb_loop+0x30/0x80
[ 236.680018][ T5739] ? clear_bhb_loop+0x30/0x80
[ 236.684679][ T5739] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 236.690737][ T5739] RIP: 0033:0x7fc651a1118a
[ 236.695151][ T5739] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 236.714911][ T5739] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 236.723543][ T5739] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 236.731707][ T5739] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 236.739669][ T5739] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 236.747796][ T5739] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 236.755957][ T5739] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 236.764173][ T5739]
[ 236.768862][ T5739] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 236.782236][ T5739] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 237.101052][ T5741] loop1: detected capacity change from 0 to 32768
[ 237.140742][ T5741] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 237.148228][ T5741] CPU: 0 PID: 5741 Comm: syz.1.195 Not tainted syzkaller #0
[ 237.155532][ T5741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 237.165598][ T5741] Call Trace:
[ 237.168888][ T5741]
[ 237.171819][ T5741] dump_stack_lvl+0x188/0x250
[ 237.176562][ T5741] ? show_regs_print_info+0x20/0x20
[ 237.181990][ T5741] ? load_image+0x400/0x400
[ 237.186528][ T5741] sysfs_create_dir_ns+0x26a/0x290
[ 237.191831][ T5741] ? sysfs_warn_dup+0xa0/0xa0
[ 237.196617][ T5741] ? do_raw_spin_unlock+0x11d/0x230
[ 237.201855][ T5741] kobject_add_internal+0x6e0/0xd90
[ 237.207087][ T5741] kobject_init_and_add+0x128/0x190
[ 237.212300][ T5741] ? lockdep_softirqs_off+0x430/0x430
[ 237.217687][ T5741] ? kobject_add+0x230/0x230
[ 237.222362][ T5741] ? __init_swait_queue_head+0xa5/0x150
[ 237.228108][ T5741] gfs2_sys_fs_add+0x24f/0x4b0
[ 237.233062][ T5741] ? gfs2_recover_set+0x240/0x240
[ 237.238168][ T5741] ? snprintf+0xe5/0x140
[ 237.242393][ T5741] ? __free_pages+0x95/0x1a0
[ 237.247118][ T5741] ? vscnprintf+0x80/0x80
[ 237.251472][ T5741] gfs2_fill_super+0x120f/0x1f00
[ 237.256592][ T5741] ? gfs2_reconfigure+0xd30/0xd30
[ 237.261714][ T5741] ? sb_set_blocksize+0xa5/0xe0
[ 237.266574][ T5741] get_tree_bdev+0x3f1/0x610
[ 237.271155][ T5741] ? gfs2_reconfigure+0xd30/0xd30
[ 237.276378][ T5741] gfs2_get_tree+0x4d/0x1e0
[ 237.280971][ T5741] vfs_get_tree+0x88/0x270
[ 237.285512][ T5741] do_new_mount+0x24a/0xa40
[ 237.290003][ T5741] __se_sys_mount+0x2e3/0x3d0
[ 237.294842][ T5741] ? __x64_sys_mount+0xc0/0xc0
[ 237.299598][ T5741] ? lockdep_hardirqs_on+0x94/0x140
[ 237.304783][ T5741] ? __x64_sys_mount+0x1c/0xc0
[ 237.309547][ T5741] do_syscall_64+0x4c/0xa0
[ 237.313941][ T5741] ? clear_bhb_loop+0x30/0x80
[ 237.318603][ T5741] ? clear_bhb_loop+0x30/0x80
[ 237.323261][ T5741] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 237.329231][ T5741] RIP: 0033:0x7fc651a1118a
[ 237.333645][ T5741] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 237.353445][ T5741] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 237.361884][ T5741] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 237.369931][ T5741] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 237.378067][ T5741] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 237.386134][ T5741] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 237.394087][ T5741] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 237.402153][ T5741]
[ 237.407067][ T5741] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 237.420496][ T5741] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 237.730863][ T5743] loop1: detected capacity change from 0 to 32768
[ 237.779611][ T5743] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 237.787183][ T5743] CPU: 1 PID: 5743 Comm: syz.1.196 Not tainted syzkaller #0
[ 237.794610][ T5743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 237.805129][ T5743] Call Trace:
[ 237.808415][ T5743]
[ 237.811354][ T5743] dump_stack_lvl+0x188/0x250
[ 237.816058][ T5743] ? show_regs_print_info+0x20/0x20
[ 237.821275][ T5743] ? load_image+0x400/0x400
[ 237.825813][ T5743] sysfs_create_dir_ns+0x26a/0x290
[ 237.831111][ T5743] ? sysfs_warn_dup+0xa0/0xa0
[ 237.835818][ T5743] ? do_raw_spin_unlock+0x11d/0x230
[ 237.841039][ T5743] kobject_add_internal+0x6e0/0xd90
[ 237.846463][ T5743] kobject_init_and_add+0x128/0x190
[ 237.851956][ T5743] ? lockdep_softirqs_off+0x430/0x430
[ 237.857427][ T5743] ? kobject_add+0x230/0x230
[ 237.862012][ T5743] ? __init_swait_queue_head+0xa5/0x150
[ 237.867645][ T5743] gfs2_sys_fs_add+0x24f/0x4b0
[ 237.872402][ T5743] ? gfs2_recover_set+0x240/0x240
[ 237.877413][ T5743] ? snprintf+0xe5/0x140
[ 237.881702][ T5743] ? __free_pages+0x95/0x1a0
[ 237.886359][ T5743] ? vscnprintf+0x80/0x80
[ 237.890849][ T5743] gfs2_fill_super+0x120f/0x1f00
[ 237.895876][ T5743] ? gfs2_reconfigure+0xd30/0xd30
[ 237.901184][ T5743] ? sb_set_blocksize+0xa5/0xe0
[ 237.906106][ T5743] get_tree_bdev+0x3f1/0x610
[ 237.910977][ T5743] ? gfs2_reconfigure+0xd30/0xd30
[ 237.916001][ T5743] gfs2_get_tree+0x4d/0x1e0
[ 237.920779][ T5743] vfs_get_tree+0x88/0x270
[ 237.925198][ T5743] do_new_mount+0x24a/0xa40
[ 237.929715][ T5743] __se_sys_mount+0x2e3/0x3d0
[ 237.934379][ T5743] ? __x64_sys_mount+0xc0/0xc0
[ 237.939130][ T5743] ? lockdep_hardirqs_on+0x94/0x140
[ 237.944325][ T5743] ? __x64_sys_mount+0x1c/0xc0
[ 237.949092][ T5743] do_syscall_64+0x4c/0xa0
[ 237.953506][ T5743] ? clear_bhb_loop+0x30/0x80
[ 237.958243][ T5743] ? clear_bhb_loop+0x30/0x80
[ 237.963081][ T5743] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 237.968960][ T5743] RIP: 0033:0x7fc651a1118a
[ 237.973359][ T5743] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 237.993222][ T5743] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.001728][ T5743] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 238.009715][ T5743] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 238.017697][ T5743] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 238.025889][ T5743] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 238.034201][ T5743] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 238.042188][ T5743]
[ 238.049808][ T5743] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.063670][ T5743] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.393021][ T5745] loop1: detected capacity change from 0 to 32768
[ 238.457315][ T5745] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 238.464882][ T5745] CPU: 1 PID: 5745 Comm: syz.1.197 Not tainted syzkaller #0
[ 238.472443][ T5745] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 238.482605][ T5745] Call Trace:
[ 238.485905][ T5745]
[ 238.488844][ T5745] dump_stack_lvl+0x188/0x250
[ 238.493538][ T5745] ? show_regs_print_info+0x20/0x20
[ 238.498839][ T5745] ? load_image+0x400/0x400
[ 238.503396][ T5745] sysfs_create_dir_ns+0x26a/0x290
[ 238.508608][ T5745] ? sysfs_warn_dup+0xa0/0xa0
[ 238.513313][ T5745] ? do_raw_spin_unlock+0x11d/0x230
[ 238.518516][ T5745] kobject_add_internal+0x6e0/0xd90
[ 238.523794][ T5745] kobject_init_and_add+0x128/0x190
[ 238.529159][ T5745] ? lockdep_softirqs_off+0x430/0x430
[ 238.534548][ T5745] ? kobject_add+0x230/0x230
[ 238.539195][ T5745] ? __init_swait_queue_head+0xa5/0x150
[ 238.544728][ T5745] gfs2_sys_fs_add+0x24f/0x4b0
[ 238.549588][ T5745] ? gfs2_recover_set+0x240/0x240
[ 238.554694][ T5745] ? snprintf+0xe5/0x140
[ 238.559108][ T5745] ? __free_pages+0x95/0x1a0
[ 238.563776][ T5745] ? vscnprintf+0x80/0x80
[ 238.568193][ T5745] gfs2_fill_super+0x120f/0x1f00
[ 238.573218][ T5745] ? gfs2_reconfigure+0xd30/0xd30
[ 238.578753][ T5745] ? sb_set_blocksize+0xa5/0xe0
[ 238.583796][ T5745] get_tree_bdev+0x3f1/0x610
[ 238.588460][ T5745] ? gfs2_reconfigure+0xd30/0xd30
[ 238.593463][ T5745] gfs2_get_tree+0x4d/0x1e0
[ 238.598052][ T5745] vfs_get_tree+0x88/0x270
[ 238.602537][ T5745] do_new_mount+0x24a/0xa40
[ 238.607026][ T5745] __se_sys_mount+0x2e3/0x3d0
[ 238.611781][ T5745] ? __x64_sys_mount+0xc0/0xc0
[ 238.616534][ T5745] ? lockdep_hardirqs_on+0x94/0x140
[ 238.621910][ T5745] ? __x64_sys_mount+0x1c/0xc0
[ 238.626797][ T5745] do_syscall_64+0x4c/0xa0
[ 238.631279][ T5745] ? clear_bhb_loop+0x30/0x80
[ 238.635953][ T5745] ? clear_bhb_loop+0x30/0x80
[ 238.640702][ T5745] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.646665][ T5745] RIP: 0033:0x7fc651a1118a
[ 238.651084][ T5745] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 238.671023][ T5745] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.679520][ T5745] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 238.687486][ T5745] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 238.695452][ T5745] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 238.703581][ T5745] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 238.711642][ T5745] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 238.719856][ T5745]
[ 238.723982][ T5745] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.737583][ T5745] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 239.050614][ T5747] loop1: detected capacity change from 0 to 32768
[ 239.117781][ T5747] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 239.125389][ T5747] CPU: 0 PID: 5747 Comm: syz.1.198 Not tainted syzkaller #0
[ 239.132701][ T5747] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 239.142853][ T5747] Call Trace:
[ 239.146152][ T5747]
[ 239.149178][ T5747] dump_stack_lvl+0x188/0x250
[ 239.154057][ T5747] ? show_regs_print_info+0x20/0x20
[ 239.159463][ T5747] ? load_image+0x400/0x400
[ 239.164426][ T5747] sysfs_create_dir_ns+0x26a/0x290
[ 239.169558][ T5747] ? sysfs_warn_dup+0xa0/0xa0
[ 239.174249][ T5747] ? do_raw_spin_unlock+0x11d/0x230
[ 239.179495][ T5747] kobject_add_internal+0x6e0/0xd90
[ 239.184714][ T5747] kobject_init_and_add+0x128/0x190
[ 239.190014][ T5747] ? lockdep_softirqs_off+0x430/0x430
[ 239.195488][ T5747] ? kobject_add+0x230/0x230
[ 239.200090][ T5747] ? __init_swait_queue_head+0xa5/0x150
[ 239.205640][ T5747] gfs2_sys_fs_add+0x24f/0x4b0
[ 239.210431][ T5747] ? gfs2_recover_set+0x240/0x240
[ 239.215470][ T5747] ? snprintf+0xe5/0x140
[ 239.219795][ T5747] ? __free_pages+0x95/0x1a0
[ 239.224385][ T5747] ? vscnprintf+0x80/0x80
[ 239.228884][ T5747] gfs2_fill_super+0x120f/0x1f00
[ 239.234072][ T5747] ? gfs2_reconfigure+0xd30/0xd30
[ 239.239091][ T5747] ? sb_set_blocksize+0xa5/0xe0
[ 239.243966][ T5747] get_tree_bdev+0x3f1/0x610
[ 239.248542][ T5747] ? gfs2_reconfigure+0xd30/0xd30
[ 239.253666][ T5747] gfs2_get_tree+0x4d/0x1e0
[ 239.258313][ T5747] vfs_get_tree+0x88/0x270
[ 239.262800][ T5747] do_new_mount+0x24a/0xa40
[ 239.267386][ T5747] __se_sys_mount+0x2e3/0x3d0
[ 239.272131][ T5747] ? __x64_sys_mount+0xc0/0xc0
[ 239.276995][ T5747] ? lockdep_hardirqs_on+0x94/0x140
[ 239.282283][ T5747] ? __x64_sys_mount+0x1c/0xc0
[ 239.287050][ T5747] do_syscall_64+0x4c/0xa0
[ 239.291616][ T5747] ? clear_bhb_loop+0x30/0x80
[ 239.296276][ T5747] ? clear_bhb_loop+0x30/0x80
[ 239.300941][ T5747] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 239.306902][ T5747] RIP: 0033:0x7fc651a1118a
[ 239.311307][ T5747] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 239.331918][ T5747] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 239.340427][ T5747] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 239.348470][ T5747] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 239.356550][ T5747] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 239.364724][ T5747] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 239.372763][ T5747] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 239.380996][ T5747]
[ 239.385232][ T5747] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 239.398387][ T5747] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 239.716230][ T5749] loop1: detected capacity change from 0 to 32768
[ 239.825137][ T5749] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 239.832605][ T5749] CPU: 1 PID: 5749 Comm: syz.1.199 Not tainted syzkaller #0
[ 239.839900][ T5749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 239.850063][ T5749] Call Trace:
[ 239.853359][ T5749]
[ 239.856484][ T5749] dump_stack_lvl+0x188/0x250
[ 239.861270][ T5749] ? show_regs_print_info+0x20/0x20
[ 239.866560][ T5749] ? load_image+0x400/0x400
[ 239.871097][ T5749] sysfs_create_dir_ns+0x26a/0x290
[ 239.876415][ T5749] ? sysfs_warn_dup+0xa0/0xa0
[ 239.881131][ T5749] ? do_raw_spin_unlock+0x11d/0x230
[ 239.886528][ T5749] kobject_add_internal+0x6e0/0xd90
[ 239.891768][ T5749] kobject_init_and_add+0x128/0x190
[ 239.896963][ T5749] ? lockdep_softirqs_off+0x430/0x430
[ 239.902433][ T5749] ? kobject_add+0x230/0x230
[ 239.907158][ T5749] ? __init_swait_queue_head+0xa5/0x150
[ 239.912895][ T5749] gfs2_sys_fs_add+0x24f/0x4b0
[ 239.917665][ T5749] ? gfs2_recover_set+0x240/0x240
[ 239.922675][ T5749] ? snprintf+0xe5/0x140
[ 239.926997][ T5749] ? __free_pages+0x95/0x1a0
[ 239.931573][ T5749] ? vscnprintf+0x80/0x80
[ 239.935912][ T5749] gfs2_fill_super+0x120f/0x1f00
[ 239.940947][ T5749] ? gfs2_reconfigure+0xd30/0xd30
[ 239.946048][ T5749] ? sb_set_blocksize+0xa5/0xe0
[ 239.950881][ T5749] get_tree_bdev+0x3f1/0x610
[ 239.955586][ T5749] ? gfs2_reconfigure+0xd30/0xd30
[ 239.960782][ T5749] gfs2_get_tree+0x4d/0x1e0
[ 239.965354][ T5749] vfs_get_tree+0x88/0x270
[ 239.969919][ T5749] do_new_mount+0x24a/0xa40
[ 239.974601][ T5749] __se_sys_mount+0x2e3/0x3d0
[ 239.979264][ T5749] ? __x64_sys_mount+0xc0/0xc0
[ 239.984009][ T5749] ? lockdep_hardirqs_on+0x94/0x140
[ 239.989276][ T5749] ? __x64_sys_mount+0x1c/0xc0
[ 239.994127][ T5749] do_syscall_64+0x4c/0xa0
[ 239.998539][ T5749] ? clear_bhb_loop+0x30/0x80
[ 240.003235][ T5749] ? clear_bhb_loop+0x30/0x80
[ 240.008107][ T5749] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 240.014164][ T5749] RIP: 0033:0x7fc651a1118a
[ 240.018651][ T5749] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 240.038326][ T5749] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.046740][ T5749] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 240.055211][ T5749] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 240.063183][ T5749] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 240.071427][ T5749] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 240.079756][ T5749] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 240.087821][ T5749]
[ 240.092072][ T5749] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.105543][ T5749] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 240.414179][ T5751] loop1: detected capacity change from 0 to 32768
[ 240.461584][ T5751] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.469084][ T5751] CPU: 1 PID: 5751 Comm: syz.1.200 Not tainted syzkaller #0
[ 240.476566][ T5751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 240.487031][ T5751] Call Trace:
[ 240.490336][ T5751]
[ 240.493376][ T5751] dump_stack_lvl+0x188/0x250
[ 240.498176][ T5751] ? show_regs_print_info+0x20/0x20
[ 240.503397][ T5751] ? load_image+0x400/0x400
[ 240.507936][ T5751] sysfs_create_dir_ns+0x26a/0x290
[ 240.513269][ T5751] ? sysfs_warn_dup+0xa0/0xa0
[ 240.517979][ T5751] ? do_raw_spin_unlock+0x11d/0x230
[ 240.523295][ T5751] kobject_add_internal+0x6e0/0xd90
[ 240.528547][ T5751] kobject_init_and_add+0x128/0x190
[ 240.533755][ T5751] ? lockdep_softirqs_off+0x430/0x430
[ 240.539274][ T5751] ? kobject_add+0x230/0x230
[ 240.544227][ T5751] ? __init_swait_queue_head+0xa5/0x150
[ 240.549793][ T5751] gfs2_sys_fs_add+0x24f/0x4b0
[ 240.554556][ T5751] ? gfs2_recover_set+0x240/0x240
[ 240.559585][ T5751] ? snprintf+0xe5/0x140
[ 240.563914][ T5751] ? __free_pages+0x95/0x1a0
[ 240.568601][ T5751] ? vscnprintf+0x80/0x80
[ 240.573043][ T5751] gfs2_fill_super+0x120f/0x1f00
[ 240.578088][ T5751] ? gfs2_reconfigure+0xd30/0xd30
[ 240.583200][ T5751] ? sb_set_blocksize+0xa5/0xe0
[ 240.588045][ T5751] get_tree_bdev+0x3f1/0x610
[ 240.592630][ T5751] ? gfs2_reconfigure+0xd30/0xd30
[ 240.597830][ T5751] gfs2_get_tree+0x4d/0x1e0
[ 240.602342][ T5751] vfs_get_tree+0x88/0x270
[ 240.606845][ T5751] do_new_mount+0x24a/0xa40
[ 240.611338][ T5751] __se_sys_mount+0x2e3/0x3d0
[ 240.616084][ T5751] ? __x64_sys_mount+0xc0/0xc0
[ 240.621037][ T5751] ? lockdep_hardirqs_on+0x94/0x140
[ 240.626237][ T5751] ? __x64_sys_mount+0x1c/0xc0
[ 240.631006][ T5751] do_syscall_64+0x4c/0xa0
[ 240.635658][ T5751] ? clear_bhb_loop+0x30/0x80
[ 240.640513][ T5751] ? clear_bhb_loop+0x30/0x80
[ 240.645174][ T5751] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 240.651169][ T5751] RIP: 0033:0x7fc651a1118a
[ 240.655581][ T5751] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 240.676376][ T5751] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.685507][ T5751] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 240.693655][ T5751] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 240.701943][ T5751] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 240.710101][ T5751] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 240.718153][ T5751] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 240.726127][ T5751]
[ 240.730188][ T5751] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.744079][ T5751] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 241.051211][ T5753] loop1: detected capacity change from 0 to 32768
[ 241.106517][ T5753] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 241.119666][ T5753] CPU: 1 PID: 5753 Comm: syz.1.201 Not tainted syzkaller #0
[ 241.126989][ T5753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 241.137359][ T5753] Call Trace:
[ 241.140752][ T5753]
[ 241.143696][ T5753] dump_stack_lvl+0x188/0x250
[ 241.148480][ T5753] ? show_regs_print_info+0x20/0x20
[ 241.153869][ T5753] ? load_image+0x400/0x400
[ 241.158525][ T5753] sysfs_create_dir_ns+0x26a/0x290
[ 241.163928][ T5753] ? sysfs_warn_dup+0xa0/0xa0
[ 241.168629][ T5753] ? do_raw_spin_unlock+0x11d/0x230
[ 241.173840][ T5753] kobject_add_internal+0x6e0/0xd90
[ 241.179146][ T5753] kobject_init_and_add+0x128/0x190
[ 241.184450][ T5753] ? lockdep_softirqs_off+0x430/0x430
[ 241.190132][ T5753] ? kobject_add+0x230/0x230
[ 241.194852][ T5753] ? __init_swait_queue_head+0xa5/0x150
[ 241.200424][ T5753] gfs2_sys_fs_add+0x24f/0x4b0
[ 241.205203][ T5753] ? gfs2_recover_set+0x240/0x240
[ 241.210392][ T5753] ? snprintf+0xe5/0x140
[ 241.214619][ T5753] ? __free_pages+0x95/0x1a0
[ 241.219328][ T5753] ? vscnprintf+0x80/0x80
[ 241.223842][ T5753] gfs2_fill_super+0x120f/0x1f00
[ 241.228792][ T5753] ? gfs2_reconfigure+0xd30/0xd30
[ 241.233809][ T5753] ? sb_set_blocksize+0xa5/0xe0
[ 241.238772][ T5753] get_tree_bdev+0x3f1/0x610
[ 241.243361][ T5753] ? gfs2_reconfigure+0xd30/0xd30
[ 241.248404][ T5753] gfs2_get_tree+0x4d/0x1e0
[ 241.253086][ T5753] vfs_get_tree+0x88/0x270
[ 241.257570][ T5753] do_new_mount+0x24a/0xa40
[ 241.262177][ T5753] __se_sys_mount+0x2e3/0x3d0
[ 241.266947][ T5753] ? __x64_sys_mount+0xc0/0xc0
[ 241.271700][ T5753] ? lockdep_hardirqs_on+0x94/0x140
[ 241.276994][ T5753] ? __x64_sys_mount+0x1c/0xc0
[ 241.281854][ T5753] do_syscall_64+0x4c/0xa0
[ 241.286514][ T5753] ? clear_bhb_loop+0x30/0x80
[ 241.291462][ T5753] ? clear_bhb_loop+0x30/0x80
[ 241.296136][ T5753] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 241.302040][ T5753] RIP: 0033:0x7fc651a1118a
[ 241.306565][ T5753] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 241.326617][ T5753] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 241.335032][ T5753] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 241.343341][ T5753] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 241.351700][ T5753] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 241.359983][ T5753] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 241.367976][ T5753] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 241.375953][ T5753]
[ 241.387738][ T5753] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 241.401358][ T5753] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/02/04 18:21:37 executed programs: 187
[ 241.707134][ T5755] loop1: detected capacity change from 0 to 32768
[ 241.761060][ T5755] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 241.769418][ T5755] CPU: 0 PID: 5755 Comm: syz.1.202 Not tainted syzkaller #0
[ 241.776844][ T5755] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 241.787700][ T5755] Call Trace:
[ 241.790987][ T5755]
[ 241.793922][ T5755] dump_stack_lvl+0x188/0x250
[ 241.798620][ T5755] ? show_regs_print_info+0x20/0x20
[ 241.804012][ T5755] ? load_image+0x400/0x400
[ 241.808631][ T5755] sysfs_create_dir_ns+0x26a/0x290
[ 241.813856][ T5755] ? sysfs_warn_dup+0xa0/0xa0
[ 241.818551][ T5755] ? do_raw_spin_unlock+0x11d/0x230
[ 241.823761][ T5755] kobject_add_internal+0x6e0/0xd90
[ 241.828990][ T5755] kobject_init_and_add+0x128/0x190
[ 241.834316][ T5755] ? lockdep_softirqs_off+0x430/0x430
[ 241.839800][ T5755] ? kobject_add+0x230/0x230
[ 241.844438][ T5755] ? __init_swait_queue_head+0xa5/0x150
[ 241.850156][ T5755] gfs2_sys_fs_add+0x24f/0x4b0
[ 241.855091][ T5755] ? gfs2_recover_set+0x240/0x240
[ 241.860106][ T5755] ? snprintf+0xe5/0x140
[ 241.864387][ T5755] ? __free_pages+0x95/0x1a0
[ 241.869136][ T5755] ? vscnprintf+0x80/0x80
[ 241.873548][ T5755] gfs2_fill_super+0x120f/0x1f00
[ 241.878506][ T5755] ? gfs2_reconfigure+0xd30/0xd30
[ 241.883519][ T5755] ? sb_set_blocksize+0xa5/0xe0
[ 241.888356][ T5755] get_tree_bdev+0x3f1/0x610
[ 241.892935][ T5755] ? gfs2_reconfigure+0xd30/0xd30
[ 241.897992][ T5755] gfs2_get_tree+0x4d/0x1e0
[ 241.902579][ T5755] vfs_get_tree+0x88/0x270
[ 241.907090][ T5755] do_new_mount+0x24a/0xa40
[ 241.911862][ T5755] __se_sys_mount+0x2e3/0x3d0
[ 241.917304][ T5755] ? __x64_sys_mount+0xc0/0xc0
[ 241.922069][ T5755] ? lockdep_hardirqs_on+0x94/0x140
[ 241.927499][ T5755] ? __x64_sys_mount+0x1c/0xc0
[ 241.932557][ T5755] do_syscall_64+0x4c/0xa0
[ 241.937161][ T5755] ? clear_bhb_loop+0x30/0x80
[ 241.942096][ T5755] ? clear_bhb_loop+0x30/0x80
[ 241.946973][ T5755] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 241.952957][ T5755] RIP: 0033:0x7fc651a1118a
[ 241.957505][ T5755] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 241.977404][ T5755] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 241.986330][ T5755] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 241.994388][ T5755] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 242.002524][ T5755] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 242.010721][ T5755] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 242.018686][ T5755] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 242.026820][ T5755]
[ 242.031692][ T5755] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 242.045343][ T5755] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 242.362983][ T5757] loop1: detected capacity change from 0 to 32768
[ 242.419859][ T5757] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 242.428606][ T5757] CPU: 0 PID: 5757 Comm: syz.1.203 Not tainted syzkaller #0
[ 242.436017][ T5757] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 242.446253][ T5757] Call Trace:
[ 242.449643][ T5757]
[ 242.452586][ T5757] dump_stack_lvl+0x188/0x250
[ 242.457347][ T5757] ? show_regs_print_info+0x20/0x20
[ 242.462678][ T5757] ? load_image+0x400/0x400
[ 242.467219][ T5757] sysfs_create_dir_ns+0x26a/0x290
[ 242.472373][ T5757] ? sysfs_warn_dup+0xa0/0xa0
[ 242.477248][ T5757] ? do_raw_spin_unlock+0x11d/0x230
[ 242.482558][ T5757] kobject_add_internal+0x6e0/0xd90
[ 242.487789][ T5757] kobject_init_and_add+0x128/0x190
[ 242.493122][ T5757] ? lockdep_softirqs_off+0x430/0x430
[ 242.498615][ T5757] ? kobject_add+0x230/0x230
[ 242.503574][ T5757] ? __init_swait_queue_head+0xa5/0x150
[ 242.509148][ T5757] gfs2_sys_fs_add+0x24f/0x4b0
[ 242.513910][ T5757] ? gfs2_recover_set+0x240/0x240
[ 242.519280][ T5757] ? snprintf+0xe5/0x140
[ 242.523595][ T5757] ? __free_pages+0x95/0x1a0
[ 242.528260][ T5757] ? vscnprintf+0x80/0x80
[ 242.532589][ T5757] gfs2_fill_super+0x120f/0x1f00
[ 242.537689][ T5757] ? gfs2_reconfigure+0xd30/0xd30
[ 242.542707][ T5757] ? sb_set_blocksize+0xa5/0xe0
[ 242.547632][ T5757] get_tree_bdev+0x3f1/0x610
[ 242.552209][ T5757] ? gfs2_reconfigure+0xd30/0xd30
[ 242.557304][ T5757] gfs2_get_tree+0x4d/0x1e0
[ 242.561913][ T5757] vfs_get_tree+0x88/0x270
[ 242.566353][ T5757] do_new_mount+0x24a/0xa40
[ 242.570848][ T5757] __se_sys_mount+0x2e3/0x3d0
[ 242.575675][ T5757] ? __x64_sys_mount+0xc0/0xc0
[ 242.580446][ T5757] ? lockdep_hardirqs_on+0x94/0x140
[ 242.585821][ T5757] ? __x64_sys_mount+0x1c/0xc0
[ 242.590632][ T5757] do_syscall_64+0x4c/0xa0
[ 242.595030][ T5757] ? clear_bhb_loop+0x30/0x80
[ 242.599946][ T5757] ? clear_bhb_loop+0x30/0x80
[ 242.604812][ T5757] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 242.610728][ T5757] RIP: 0033:0x7fc651a1118a
[ 242.615323][ T5757] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 242.635093][ T5757] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 242.643507][ T5757] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 242.651482][ T5757] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 242.659563][ T5757] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 242.667628][ T5757] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 242.675593][ T5757] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 242.683803][ T5757]
[ 242.688378][ T5757] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 242.702389][ T5757] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 243.007299][ T5759] loop1: detected capacity change from 0 to 32768
[ 243.074558][ T5759] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.082538][ T5759] CPU: 0 PID: 5759 Comm: syz.1.204 Not tainted syzkaller #0
[ 243.090062][ T5759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 243.100140][ T5759] Call Trace:
[ 243.103783][ T5759]
[ 243.106728][ T5759] dump_stack_lvl+0x188/0x250
[ 243.111420][ T5759] ? show_regs_print_info+0x20/0x20
[ 243.116804][ T5759] ? load_image+0x400/0x400
[ 243.121339][ T5759] sysfs_create_dir_ns+0x26a/0x290
[ 243.126554][ T5759] ? sysfs_warn_dup+0xa0/0xa0
[ 243.131246][ T5759] ? do_raw_spin_unlock+0x11d/0x230
[ 243.136546][ T5759] kobject_add_internal+0x6e0/0xd90
[ 243.141777][ T5759] kobject_init_and_add+0x128/0x190
[ 243.146989][ T5759] ? lockdep_softirqs_off+0x430/0x430
[ 243.152378][ T5759] ? kobject_add+0x230/0x230
[ 243.157057][ T5759] ? __init_swait_queue_head+0xa5/0x150
[ 243.162601][ T5759] gfs2_sys_fs_add+0x24f/0x4b0
[ 243.167358][ T5759] ? gfs2_recover_set+0x240/0x240
[ 243.172404][ T5759] ? snprintf+0xe5/0x140
[ 243.176657][ T5759] ? __free_pages+0x95/0x1a0
[ 243.181297][ T5759] ? vscnprintf+0x80/0x80
[ 243.185615][ T5759] gfs2_fill_super+0x120f/0x1f00
[ 243.190649][ T5759] ? gfs2_reconfigure+0xd30/0xd30
[ 243.195681][ T5759] ? sb_set_blocksize+0xa5/0xe0
[ 243.200522][ T5759] get_tree_bdev+0x3f1/0x610
[ 243.205208][ T5759] ? gfs2_reconfigure+0xd30/0xd30
[ 243.210346][ T5759] gfs2_get_tree+0x4d/0x1e0
[ 243.214941][ T5759] vfs_get_tree+0x88/0x270
[ 243.219365][ T5759] do_new_mount+0x24a/0xa40
[ 243.223953][ T5759] __se_sys_mount+0x2e3/0x3d0
[ 243.228627][ T5759] ? __x64_sys_mount+0xc0/0xc0
[ 243.233481][ T5759] ? lockdep_hardirqs_on+0x94/0x140
[ 243.239031][ T5759] ? __x64_sys_mount+0x1c/0xc0
[ 243.245195][ T5759] do_syscall_64+0x4c/0xa0
[ 243.249666][ T5759] ? clear_bhb_loop+0x30/0x80
[ 243.254514][ T5759] ? clear_bhb_loop+0x30/0x80
[ 243.259360][ T5759] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 243.266022][ T5759] RIP: 0033:0x7fc651a1118a
[ 243.270441][ T5759] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 243.291522][ T5759] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 243.300027][ T5759] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 243.308854][ T5759] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 243.316824][ T5759] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 243.324875][ T5759] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 243.332841][ T5759] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 243.340980][ T5759]
[ 243.344994][ T5759] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 243.358497][ T5759] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 243.685302][ T5761] loop1: detected capacity change from 0 to 32768
[ 243.736820][ T5761] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.744631][ T5761] CPU: 0 PID: 5761 Comm: syz.1.205 Not tainted syzkaller #0
[ 243.752138][ T5761] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 243.762974][ T5761] Call Trace:
[ 243.766451][ T5761]
[ 243.769401][ T5761] dump_stack_lvl+0x188/0x250
[ 243.774286][ T5761] ? show_regs_print_info+0x20/0x20
[ 243.779597][ T5761] ? load_image+0x400/0x400
[ 243.784217][ T5761] sysfs_create_dir_ns+0x26a/0x290
[ 243.789446][ T5761] ? sysfs_warn_dup+0xa0/0xa0
[ 243.794139][ T5761] ? do_raw_spin_unlock+0x11d/0x230
[ 243.799357][ T5761] kobject_add_internal+0x6e0/0xd90
[ 243.804619][ T5761] kobject_init_and_add+0x128/0x190
[ 243.810030][ T5761] ? lockdep_softirqs_off+0x430/0x430
[ 243.815438][ T5761] ? kobject_add+0x230/0x230
[ 243.820200][ T5761] ? __init_swait_queue_head+0xa5/0x150
[ 243.825930][ T5761] gfs2_sys_fs_add+0x24f/0x4b0
[ 243.830770][ T5761] ? gfs2_recover_set+0x240/0x240
[ 243.835834][ T5761] ? snprintf+0xe5/0x140
[ 243.840063][ T5761] ? __free_pages+0x95/0x1a0
[ 243.844853][ T5761] ? vscnprintf+0x80/0x80
[ 243.849262][ T5761] gfs2_fill_super+0x120f/0x1f00
[ 243.854201][ T5761] ? gfs2_reconfigure+0xd30/0xd30
[ 243.859558][ T5761] ? sb_set_blocksize+0xa5/0xe0
[ 243.864494][ T5761] get_tree_bdev+0x3f1/0x610
[ 243.869287][ T5761] ? gfs2_reconfigure+0xd30/0xd30
[ 243.874481][ T5761] gfs2_get_tree+0x4d/0x1e0
[ 243.879057][ T5761] vfs_get_tree+0x88/0x270
[ 243.883462][ T5761] do_new_mount+0x24a/0xa40
[ 243.888133][ T5761] __se_sys_mount+0x2e3/0x3d0
[ 243.892830][ T5761] ? __x64_sys_mount+0xc0/0xc0
[ 243.897578][ T5761] ? lockdep_hardirqs_on+0x94/0x140
[ 243.902755][ T5761] ? __x64_sys_mount+0x1c/0xc0
[ 243.907587][ T5761] do_syscall_64+0x4c/0xa0
[ 243.912065][ T5761] ? clear_bhb_loop+0x30/0x80
[ 243.916741][ T5761] ? clear_bhb_loop+0x30/0x80
[ 243.921464][ T5761] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 243.927350][ T5761] RIP: 0033:0x7fc651a1118a
[ 243.931762][ T5761] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 243.951628][ T5761] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 243.960044][ T5761] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 243.968112][ T5761] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 243.976075][ T5761] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 243.984142][ T5761] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 243.992161][ T5761] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 244.000237][ T5761]
[ 244.004576][ T5761] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.017746][ T5761] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.351155][ T5763] loop1: detected capacity change from 0 to 32768
[ 244.442447][ T5763] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 244.450112][ T5763] CPU: 1 PID: 5763 Comm: syz.1.206 Not tainted syzkaller #0
[ 244.457852][ T5763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 244.468198][ T5763] Call Trace:
[ 244.471493][ T5763]
[ 244.474431][ T5763] dump_stack_lvl+0x188/0x250
[ 244.479301][ T5763] ? show_regs_print_info+0x20/0x20
[ 244.484605][ T5763] ? load_image+0x400/0x400
[ 244.489222][ T5763] sysfs_create_dir_ns+0x26a/0x290
[ 244.494353][ T5763] ? sysfs_warn_dup+0xa0/0xa0
[ 244.499044][ T5763] ? do_raw_spin_unlock+0x11d/0x230
[ 244.504263][ T5763] kobject_add_internal+0x6e0/0xd90
[ 244.509479][ T5763] kobject_init_and_add+0x128/0x190
[ 244.514688][ T5763] ? lockdep_softirqs_off+0x430/0x430
[ 244.520209][ T5763] ? kobject_add+0x230/0x230
[ 244.524897][ T5763] ? __init_swait_queue_head+0xa5/0x150
[ 244.530435][ T5763] gfs2_sys_fs_add+0x24f/0x4b0
[ 244.535190][ T5763] ? gfs2_recover_set+0x240/0x240
[ 244.540390][ T5763] ? snprintf+0xe5/0x140
[ 244.544794][ T5763] ? __free_pages+0x95/0x1a0
[ 244.549467][ T5763] ? vscnprintf+0x80/0x80
[ 244.553803][ T5763] gfs2_fill_super+0x120f/0x1f00
[ 244.558821][ T5763] ? gfs2_reconfigure+0xd30/0xd30
[ 244.564018][ T5763] ? sb_set_blocksize+0xa5/0xe0
[ 244.568858][ T5763] get_tree_bdev+0x3f1/0x610
[ 244.573447][ T5763] ? gfs2_reconfigure+0xd30/0xd30
[ 244.578647][ T5763] gfs2_get_tree+0x4d/0x1e0
[ 244.583136][ T5763] vfs_get_tree+0x88/0x270
[ 244.587541][ T5763] do_new_mount+0x24a/0xa40
[ 244.592032][ T5763] __se_sys_mount+0x2e3/0x3d0
[ 244.596695][ T5763] ? __x64_sys_mount+0xc0/0xc0
[ 244.601453][ T5763] ? lockdep_hardirqs_on+0x94/0x140
[ 244.606747][ T5763] ? __x64_sys_mount+0x1c/0xc0
[ 244.611507][ T5763] do_syscall_64+0x4c/0xa0
[ 244.616006][ T5763] ? clear_bhb_loop+0x30/0x80
[ 244.620680][ T5763] ? clear_bhb_loop+0x30/0x80
[ 244.625343][ T5763] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 244.631307][ T5763] RIP: 0033:0x7fc651a1118a
[ 244.635703][ T5763] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 244.655404][ T5763] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 244.663809][ T5763] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 244.671785][ T5763] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 244.680049][ T5763] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 244.688451][ T5763] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 244.696494][ T5763] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 244.704474][ T5763]
[ 244.713675][ T5763] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 244.727609][ T5763] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.060475][ T5765] loop1: detected capacity change from 0 to 32768
[ 245.106820][ T5765] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.115038][ T5765] CPU: 0 PID: 5765 Comm: syz.1.207 Not tainted syzkaller #0
[ 245.122443][ T5765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 245.132598][ T5765] Call Trace:
[ 245.136239][ T5765]
[ 245.139190][ T5765] dump_stack_lvl+0x188/0x250
[ 245.143972][ T5765] ? show_regs_print_info+0x20/0x20
[ 245.149486][ T5765] ? load_image+0x400/0x400
[ 245.154097][ T5765] sysfs_create_dir_ns+0x26a/0x290
[ 245.159227][ T5765] ? sysfs_warn_dup+0xa0/0xa0
[ 245.163918][ T5765] ? do_raw_spin_unlock+0x11d/0x230
[ 245.169417][ T5765] kobject_add_internal+0x6e0/0xd90
[ 245.174646][ T5765] kobject_init_and_add+0x128/0x190
[ 245.179868][ T5765] ? lockdep_softirqs_off+0x430/0x430
[ 245.185268][ T5765] ? kobject_add+0x230/0x230
[ 245.189872][ T5765] ? __init_swait_queue_head+0xa5/0x150
[ 245.195436][ T5765] gfs2_sys_fs_add+0x24f/0x4b0
[ 245.200189][ T5765] ? gfs2_recover_set+0x240/0x240
[ 245.205197][ T5765] ? snprintf+0xe5/0x140
[ 245.209430][ T5765] ? __free_pages+0x95/0x1a0
[ 245.214022][ T5765] ? vscnprintf+0x80/0x80
[ 245.218369][ T5765] gfs2_fill_super+0x120f/0x1f00
[ 245.223507][ T5765] ? gfs2_reconfigure+0xd30/0xd30
[ 245.228527][ T5765] ? sb_set_blocksize+0xa5/0xe0
[ 245.233441][ T5765] get_tree_bdev+0x3f1/0x610
[ 245.238167][ T5765] ? gfs2_reconfigure+0xd30/0xd30
[ 245.243192][ T5765] gfs2_get_tree+0x4d/0x1e0
[ 245.247776][ T5765] vfs_get_tree+0x88/0x270
[ 245.252447][ T5765] do_new_mount+0x24a/0xa40
[ 245.257313][ T5765] __se_sys_mount+0x2e3/0x3d0
[ 245.262163][ T5765] ? __x64_sys_mount+0xc0/0xc0
[ 245.266920][ T5765] ? lockdep_hardirqs_on+0x94/0x140
[ 245.272102][ T5765] ? __x64_sys_mount+0x1c/0xc0
[ 245.276942][ T5765] do_syscall_64+0x4c/0xa0
[ 245.281344][ T5765] ? clear_bhb_loop+0x30/0x80
[ 245.286012][ T5765] ? clear_bhb_loop+0x30/0x80
[ 245.291101][ T5765] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 245.297130][ T5765] RIP: 0033:0x7fc651a1118a
[ 245.301738][ T5765] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 245.321616][ T5765] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.330253][ T5765] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 245.338306][ T5765] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 245.346367][ T5765] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 245.354339][ T5765] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 245.362294][ T5765] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 245.370257][ T5765]
[ 245.374607][ T5765] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.387974][ T5765] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.689291][ T5767] loop1: detected capacity change from 0 to 32768
[ 245.751620][ T5767] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.760448][ T5767] CPU: 0 PID: 5767 Comm: syz.1.208 Not tainted syzkaller #0
[ 245.768152][ T5767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 245.780097][ T5767] Call Trace:
[ 245.783583][ T5767]
[ 245.786799][ T5767] dump_stack_lvl+0x188/0x250
[ 245.791738][ T5767] ? show_regs_print_info+0x20/0x20
[ 245.797125][ T5767] ? load_image+0x400/0x400
[ 245.801743][ T5767] sysfs_create_dir_ns+0x26a/0x290
[ 245.807219][ T5767] ? sysfs_warn_dup+0xa0/0xa0
[ 245.812172][ T5767] ? do_raw_spin_unlock+0x11d/0x230
[ 245.817484][ T5767] kobject_add_internal+0x6e0/0xd90
[ 245.822873][ T5767] kobject_init_and_add+0x128/0x190
[ 245.828080][ T5767] ? lockdep_softirqs_off+0x430/0x430
[ 245.833481][ T5767] ? kobject_add+0x230/0x230
[ 245.838184][ T5767] ? __init_swait_queue_head+0xa5/0x150
[ 245.843834][ T5767] gfs2_sys_fs_add+0x24f/0x4b0
[ 245.848817][ T5767] ? gfs2_recover_set+0x240/0x240
[ 245.854104][ T5767] ? snprintf+0xe5/0x140
[ 245.858431][ T5767] ? __free_pages+0x95/0x1a0
[ 245.863021][ T5767] ? vscnprintf+0x80/0x80
[ 245.867466][ T5767] gfs2_fill_super+0x120f/0x1f00
[ 245.872402][ T5767] ? gfs2_reconfigure+0xd30/0xd30
[ 245.877616][ T5767] ? sb_set_blocksize+0xa5/0xe0
[ 245.882502][ T5767] get_tree_bdev+0x3f1/0x610
[ 245.887192][ T5767] ? gfs2_reconfigure+0xd30/0xd30
[ 245.892418][ T5767] gfs2_get_tree+0x4d/0x1e0
[ 245.897017][ T5767] vfs_get_tree+0x88/0x270
[ 245.901436][ T5767] do_new_mount+0x24a/0xa40
[ 245.906081][ T5767] __se_sys_mount+0x2e3/0x3d0
[ 245.910779][ T5767] ? __x64_sys_mount+0xc0/0xc0
[ 245.915565][ T5767] ? lockdep_hardirqs_on+0x94/0x140
[ 245.920772][ T5767] ? __x64_sys_mount+0x1c/0xc0
[ 245.925522][ T5767] do_syscall_64+0x4c/0xa0
[ 245.929964][ T5767] ? clear_bhb_loop+0x30/0x80
[ 245.934711][ T5767] ? clear_bhb_loop+0x30/0x80
[ 245.939400][ T5767] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 245.945421][ T5767] RIP: 0033:0x7fc651a1118a
[ 245.949825][ T5767] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 245.969891][ T5767] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.978392][ T5767] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 245.986351][ T5767] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 245.994584][ T5767] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 246.002553][ T5767] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 246.010613][ T5767] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 246.018683][ T5767]
[ 246.022726][ T5767] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 246.036094][ T5767] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 246.363926][ T5769] loop1: detected capacity change from 0 to 32768
[ 246.411142][ T5769] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 246.418840][ T5769] CPU: 0 PID: 5769 Comm: syz.1.209 Not tainted syzkaller #0
[ 246.426143][ T5769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 246.436223][ T5769] Call Trace:
[ 246.439647][ T5769]
[ 246.442580][ T5769] dump_stack_lvl+0x188/0x250
[ 246.447364][ T5769] ? show_regs_print_info+0x20/0x20
[ 246.452598][ T5769] ? load_image+0x400/0x400
[ 246.457233][ T5769] sysfs_create_dir_ns+0x26a/0x290
[ 246.462537][ T5769] ? sysfs_warn_dup+0xa0/0xa0
[ 246.467236][ T5769] ? do_raw_spin_unlock+0x11d/0x230
[ 246.472543][ T5769] kobject_add_internal+0x6e0/0xd90
[ 246.477767][ T5769] kobject_init_and_add+0x128/0x190
[ 246.482993][ T5769] ? lockdep_softirqs_off+0x430/0x430
[ 246.488506][ T5769] ? kobject_add+0x230/0x230
[ 246.493220][ T5769] ? __init_swait_queue_head+0xa5/0x150
[ 246.499043][ T5769] gfs2_sys_fs_add+0x24f/0x4b0
[ 246.503791][ T5769] ? gfs2_recover_set+0x240/0x240
[ 246.508889][ T5769] ? snprintf+0xe5/0x140
[ 246.513117][ T5769] ? __free_pages+0x95/0x1a0
[ 246.517897][ T5769] ? vscnprintf+0x80/0x80
[ 246.522244][ T5769] gfs2_fill_super+0x120f/0x1f00
[ 246.527197][ T5769] ? gfs2_reconfigure+0xd30/0xd30
[ 246.532224][ T5769] ? sb_set_blocksize+0xa5/0xe0
[ 246.537349][ T5769] get_tree_bdev+0x3f1/0x610
[ 246.542021][ T5769] ? gfs2_reconfigure+0xd30/0xd30
[ 246.547353][ T5769] gfs2_get_tree+0x4d/0x1e0
[ 246.552153][ T5769] vfs_get_tree+0x88/0x270
[ 246.556602][ T5769] do_new_mount+0x24a/0xa40
[ 246.561174][ T5769] __se_sys_mount+0x2e3/0x3d0
[ 246.565868][ T5769] ? __x64_sys_mount+0xc0/0xc0
[ 246.570700][ T5769] ? lockdep_hardirqs_on+0x94/0x140
[ 246.576273][ T5769] ? __x64_sys_mount+0x1c/0xc0
[ 246.581133][ T5769] do_syscall_64+0x4c/0xa0
[ 246.585541][ T5769] ? clear_bhb_loop+0x30/0x80
[ 246.590200][ T5769] ? clear_bhb_loop+0x30/0x80
[ 246.595091][ T5769] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 246.600985][ T5769] RIP: 0033:0x7fc651a1118a
[ 246.605396][ T5769] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 246.625254][ T5769] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 246.634003][ T5769] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 246.641972][ T5769] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 246.649925][ T5769] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 246.657889][ T5769] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 246.666329][ T5769] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 246.674391][ T5769]
[ 246.678781][ T5769] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 246.692081][ T5769] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/02/04 18:21:43 executed programs: 195
[ 246.998249][ T5771] loop1: detected capacity change from 0 to 32768
[ 247.085313][ T5771] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.092783][ T5771] CPU: 1 PID: 5771 Comm: syz.1.210 Not tainted syzkaller #0
[ 247.100072][ T5771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 247.110309][ T5771] Call Trace:
[ 247.113601][ T5771]
[ 247.116631][ T5771] dump_stack_lvl+0x188/0x250
[ 247.121418][ T5771] ? show_regs_print_info+0x20/0x20
[ 247.126811][ T5771] ? load_image+0x400/0x400
[ 247.131344][ T5771] sysfs_create_dir_ns+0x26a/0x290
[ 247.136565][ T5771] ? sysfs_warn_dup+0xa0/0xa0
[ 247.141328][ T5771] ? do_raw_spin_unlock+0x11d/0x230
[ 247.146628][ T5771] kobject_add_internal+0x6e0/0xd90
[ 247.151829][ T5771] kobject_init_and_add+0x128/0x190
[ 247.157026][ T5771] ? lockdep_softirqs_off+0x430/0x430
[ 247.162417][ T5771] ? kobject_add+0x230/0x230
[ 247.167018][ T5771] ? __init_swait_queue_head+0xa5/0x150
[ 247.172555][ T5771] gfs2_sys_fs_add+0x24f/0x4b0
[ 247.177303][ T5771] ? gfs2_recover_set+0x240/0x240
[ 247.182483][ T5771] ? snprintf+0xe5/0x140
[ 247.186797][ T5771] ? __free_pages+0x95/0x1a0
[ 247.191480][ T5771] ? vscnprintf+0x80/0x80
[ 247.195818][ T5771] gfs2_fill_super+0x120f/0x1f00
[ 247.200761][ T5771] ? gfs2_reconfigure+0xd30/0xd30
[ 247.205846][ T5771] ? sb_set_blocksize+0xa5/0xe0
[ 247.210744][ T5771] get_tree_bdev+0x3f1/0x610
[ 247.215325][ T5771] ? gfs2_reconfigure+0xd30/0xd30
[ 247.220339][ T5771] gfs2_get_tree+0x4d/0x1e0
[ 247.224846][ T5771] vfs_get_tree+0x88/0x270
[ 247.229446][ T5771] do_new_mount+0x24a/0xa40
[ 247.233954][ T5771] __se_sys_mount+0x2e3/0x3d0
[ 247.238615][ T5771] ? __x64_sys_mount+0xc0/0xc0
[ 247.243358][ T5771] ? lockdep_hardirqs_on+0x94/0x140
[ 247.248623][ T5771] ? __x64_sys_mount+0x1c/0xc0
[ 247.253379][ T5771] do_syscall_64+0x4c/0xa0
[ 247.257782][ T5771] ? clear_bhb_loop+0x30/0x80
[ 247.262535][ T5771] ? clear_bhb_loop+0x30/0x80
[ 247.267200][ T5771] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 247.273181][ T5771] RIP: 0033:0x7fc651a1118a
[ 247.277787][ T5771] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 247.297517][ T5771] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.306110][ T5771] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 247.314079][ T5771] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 247.322038][ T5771] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 247.330113][ T5771] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 247.338266][ T5771] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 247.346371][ T5771]
[ 247.350476][ T5771] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 247.364206][ T5771] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 247.551539][ T4257] Bluetooth: hci1: command 0x0406 tx timeout
[ 247.690421][ T5773] loop1: detected capacity change from 0 to 32768
[ 247.736501][ T5773] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.751190][ T5773] CPU: 1 PID: 5773 Comm: syz.1.211 Not tainted syzkaller #0
[ 247.758709][ T5773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 247.768868][ T5773] Call Trace:
[ 247.772246][ T5773]
[ 247.775196][ T5773] dump_stack_lvl+0x188/0x250
[ 247.779893][ T5773] ? show_regs_print_info+0x20/0x20
[ 247.785113][ T5773] ? load_image+0x400/0x400
[ 247.789664][ T5773] sysfs_create_dir_ns+0x26a/0x290
[ 247.794932][ T5773] ? sysfs_warn_dup+0xa0/0xa0
[ 247.799625][ T5773] ? do_raw_spin_unlock+0x11d/0x230
[ 247.805290][ T5773] kobject_add_internal+0x6e0/0xd90
[ 247.810626][ T5773] kobject_init_and_add+0x128/0x190
[ 247.815946][ T5773] ? lockdep_softirqs_off+0x430/0x430
[ 247.821338][ T5773] ? kobject_add+0x230/0x230
[ 247.826147][ T5773] ? __init_swait_queue_head+0xa5/0x150
[ 247.831898][ T5773] gfs2_sys_fs_add+0x24f/0x4b0
[ 247.836655][ T5773] ? gfs2_recover_set+0x240/0x240
[ 247.841729][ T5773] ? snprintf+0xe5/0x140
[ 247.845962][ T5773] ? __free_pages+0x95/0x1a0
[ 247.850541][ T5773] ? vscnprintf+0x80/0x80
[ 247.854875][ T5773] gfs2_fill_super+0x120f/0x1f00
[ 247.859806][ T5773] ? gfs2_reconfigure+0xd30/0xd30
[ 247.864825][ T5773] ? sb_set_blocksize+0xa5/0xe0
[ 247.869662][ T5773] get_tree_bdev+0x3f1/0x610
[ 247.874246][ T5773] ? gfs2_reconfigure+0xd30/0xd30
[ 247.879616][ T5773] gfs2_get_tree+0x4d/0x1e0
[ 247.884197][ T5773] vfs_get_tree+0x88/0x270
[ 247.888628][ T5773] do_new_mount+0x24a/0xa40
[ 247.893129][ T5773] __se_sys_mount+0x2e3/0x3d0
[ 247.897800][ T5773] ? __x64_sys_mount+0xc0/0xc0
[ 247.902562][ T5773] ? lockdep_hardirqs_on+0x94/0x140
[ 247.907754][ T5773] ? __x64_sys_mount+0x1c/0xc0
[ 247.912505][ T5773] do_syscall_64+0x4c/0xa0
[ 247.916927][ T5773] ? clear_bhb_loop+0x30/0x80
[ 247.921610][ T5773] ? clear_bhb_loop+0x30/0x80
[ 247.926378][ T5773] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 247.932427][ T5773] RIP: 0033:0x7fc651a1118a
[ 247.936824][ T5773] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 247.956502][ T5773] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.965187][ T5773] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 247.973189][ T5773] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 247.981149][ T5773] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 247.989113][ T5773] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 247.997166][ T5773] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 248.005327][ T5773]
[ 248.016981][ T5773] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.030473][ T5773] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.353531][ T5775] loop1: detected capacity change from 0 to 32768
[ 248.453510][ T5775] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.461067][ T5775] CPU: 1 PID: 5775 Comm: syz.1.212 Not tainted syzkaller #0
[ 248.468361][ T5775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 248.478425][ T5775] Call Trace:
[ 248.481700][ T5775]
[ 248.484843][ T5775] dump_stack_lvl+0x188/0x250
[ 248.489538][ T5775] ? show_regs_print_info+0x20/0x20
[ 248.494763][ T5775] ? load_image+0x400/0x400
[ 248.499392][ T5775] sysfs_create_dir_ns+0x26a/0x290
[ 248.504523][ T5775] ? sysfs_warn_dup+0xa0/0xa0
[ 248.509299][ T5775] ? do_raw_spin_unlock+0x11d/0x230
[ 248.514514][ T5775] kobject_add_internal+0x6e0/0xd90
[ 248.519881][ T5775] kobject_init_and_add+0x128/0x190
[ 248.525073][ T5775] ? lockdep_softirqs_off+0x430/0x430
[ 248.530613][ T5775] ? kobject_add+0x230/0x230
[ 248.535183][ T5775] ? __init_swait_queue_head+0xa5/0x150
[ 248.540733][ T5775] gfs2_sys_fs_add+0x24f/0x4b0
[ 248.545571][ T5775] ? gfs2_recover_set+0x240/0x240
[ 248.550674][ T5775] ? snprintf+0xe5/0x140
[ 248.554937][ T5775] ? __free_pages+0x95/0x1a0
[ 248.559626][ T5775] ? vscnprintf+0x80/0x80
[ 248.563949][ T5775] gfs2_fill_super+0x120f/0x1f00
[ 248.569059][ T5775] ? gfs2_reconfigure+0xd30/0xd30
[ 248.574326][ T5775] ? sb_set_blocksize+0xa5/0xe0
[ 248.579174][ T5775] get_tree_bdev+0x3f1/0x610
[ 248.583938][ T5775] ? gfs2_reconfigure+0xd30/0xd30
[ 248.588955][ T5775] gfs2_get_tree+0x4d/0x1e0
[ 248.593572][ T5775] vfs_get_tree+0x88/0x270
[ 248.598001][ T5775] do_new_mount+0x24a/0xa40
[ 248.602586][ T5775] __se_sys_mount+0x2e3/0x3d0
[ 248.607255][ T5775] ? __x64_sys_mount+0xc0/0xc0
[ 248.612009][ T5775] ? lockdep_hardirqs_on+0x94/0x140
[ 248.617381][ T5775] ? __x64_sys_mount+0x1c/0xc0
[ 248.622370][ T5775] do_syscall_64+0x4c/0xa0
[ 248.626782][ T5775] ? clear_bhb_loop+0x30/0x80
[ 248.631463][ T5775] ? clear_bhb_loop+0x30/0x80
[ 248.636352][ T5775] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.642341][ T5775] RIP: 0033:0x7fc651a1118a
[ 248.646746][ T5775] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 248.666759][ T5775] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.675256][ T5775] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 248.683534][ T5775] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 248.691584][ T5775] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 248.699560][ T5775] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 248.707742][ T5775] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 248.715760][ T5775]
[ 248.720025][ T5775] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.733752][ T5775] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.049366][ T5777] loop1: detected capacity change from 0 to 32768
[ 249.135304][ T5777] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.143021][ T5777] CPU: 0 PID: 5777 Comm: syz.1.213 Not tainted syzkaller #0
[ 249.150414][ T5777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 249.160476][ T5777] Call Trace:
[ 249.163807][ T5777]
[ 249.166801][ T5777] dump_stack_lvl+0x188/0x250
[ 249.171497][ T5777] ? show_regs_print_info+0x20/0x20
[ 249.176708][ T5777] ? load_image+0x400/0x400
[ 249.181228][ T5777] sysfs_create_dir_ns+0x26a/0x290
[ 249.186343][ T5777] ? sysfs_warn_dup+0xa0/0xa0
[ 249.191099][ T5777] ? do_raw_spin_unlock+0x11d/0x230
[ 249.196332][ T5777] kobject_add_internal+0x6e0/0xd90
[ 249.201521][ T5777] kobject_init_and_add+0x128/0x190
[ 249.206725][ T5777] ? lockdep_softirqs_off+0x430/0x430
[ 249.212268][ T5777] ? kobject_add+0x230/0x230
[ 249.216848][ T5777] ? __init_swait_queue_head+0xa5/0x150
[ 249.222383][ T5777] gfs2_sys_fs_add+0x24f/0x4b0
[ 249.227220][ T5777] ? gfs2_recover_set+0x240/0x240
[ 249.232235][ T5777] ? snprintf+0xe5/0x140
[ 249.236470][ T5777] ? __free_pages+0x95/0x1a0
[ 249.241161][ T5777] ? vscnprintf+0x80/0x80
[ 249.245498][ T5777] gfs2_fill_super+0x120f/0x1f00
[ 249.250526][ T5777] ? gfs2_reconfigure+0xd30/0xd30
[ 249.255830][ T5777] ? sb_set_blocksize+0xa5/0xe0
[ 249.261044][ T5777] get_tree_bdev+0x3f1/0x610
[ 249.265746][ T5777] ? gfs2_reconfigure+0xd30/0xd30
[ 249.270862][ T5777] gfs2_get_tree+0x4d/0x1e0
[ 249.275351][ T5777] vfs_get_tree+0x88/0x270
[ 249.279841][ T5777] do_new_mount+0x24a/0xa40
[ 249.284425][ T5777] __se_sys_mount+0x2e3/0x3d0
[ 249.289080][ T5777] ? __x64_sys_mount+0xc0/0xc0
[ 249.293821][ T5777] ? lockdep_hardirqs_on+0x94/0x140
[ 249.299020][ T5777] ? __x64_sys_mount+0x1c/0xc0
[ 249.303795][ T5777] do_syscall_64+0x4c/0xa0
[ 249.308191][ T5777] ? clear_bhb_loop+0x30/0x80
[ 249.312848][ T5777] ? clear_bhb_loop+0x30/0x80
[ 249.317610][ T5777] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 249.323489][ T5777] RIP: 0033:0x7fc651a1118a
[ 249.327971][ T5777] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 249.347966][ T5777] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 249.356586][ T5777] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 249.364552][ T5777] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 249.372600][ T5777] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 249.380588][ T5777] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 249.388746][ T5777] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 249.396821][ T5777]
[ 249.401389][ T5777] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.415113][ T5777] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.751777][ T5779] loop1: detected capacity change from 0 to 32768
[ 249.820603][ T5779] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.828361][ T5779] CPU: 0 PID: 5779 Comm: syz.1.214 Not tainted syzkaller #0
[ 249.835674][ T5779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 249.845828][ T5779] Call Trace:
[ 249.849113][ T5779]
[ 249.852043][ T5779] dump_stack_lvl+0x188/0x250
[ 249.856737][ T5779] ? show_regs_print_info+0x20/0x20
[ 249.861955][ T5779] ? load_image+0x400/0x400
[ 249.866573][ T5779] sysfs_create_dir_ns+0x26a/0x290
[ 249.871698][ T5779] ? sysfs_warn_dup+0xa0/0xa0
[ 249.876390][ T5779] ? do_raw_spin_unlock+0x11d/0x230
[ 249.881626][ T5779] kobject_add_internal+0x6e0/0xd90
[ 249.886851][ T5779] kobject_init_and_add+0x128/0x190
[ 249.892176][ T5779] ? lockdep_softirqs_off+0x430/0x430
[ 249.897594][ T5779] ? kobject_add+0x230/0x230
[ 249.902178][ T5779] ? __init_swait_queue_head+0xa5/0x150
[ 249.907885][ T5779] gfs2_sys_fs_add+0x24f/0x4b0
[ 249.912775][ T5779] ? gfs2_recover_set+0x240/0x240
[ 249.917790][ T5779] ? snprintf+0xe5/0x140
[ 249.922016][ T5779] ? __free_pages+0x95/0x1a0
[ 249.926689][ T5779] ? vscnprintf+0x80/0x80
[ 249.931028][ T5779] gfs2_fill_super+0x120f/0x1f00
[ 249.935977][ T5779] ? gfs2_reconfigure+0xd30/0xd30
[ 249.941191][ T5779] ? sb_set_blocksize+0xa5/0xe0
[ 249.946156][ T5779] get_tree_bdev+0x3f1/0x610
[ 249.951016][ T5779] ? gfs2_reconfigure+0xd30/0xd30
[ 249.956214][ T5779] gfs2_get_tree+0x4d/0x1e0
[ 249.960729][ T5779] vfs_get_tree+0x88/0x270
[ 249.965342][ T5779] do_new_mount+0x24a/0xa40
[ 249.969842][ T5779] __se_sys_mount+0x2e3/0x3d0
[ 249.974505][ T5779] ? __x64_sys_mount+0xc0/0xc0
[ 249.979375][ T5779] ? lockdep_hardirqs_on+0x94/0x140
[ 249.984562][ T5779] ? __x64_sys_mount+0x1c/0xc0
[ 249.989320][ T5779] do_syscall_64+0x4c/0xa0
[ 249.993781][ T5779] ? clear_bhb_loop+0x30/0x80
[ 249.998533][ T5779] ? clear_bhb_loop+0x30/0x80
[ 250.003187][ T5779] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.009145][ T5779] RIP: 0033:0x7fc651a1118a
[ 250.013540][ T5779] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 250.033219][ T5779] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.041722][ T5779] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 250.049786][ T5779] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 250.058056][ T5779] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 250.066185][ T5779] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 250.074239][ T5779] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 250.082322][ T5779]
[ 250.086702][ T5779] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.100149][ T5779] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.405305][ T5781] loop1: detected capacity change from 0 to 32768
[ 250.460356][ T5781] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.467889][ T5781] CPU: 0 PID: 5781 Comm: syz.1.215 Not tainted syzkaller #0
[ 250.475198][ T5781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 250.485544][ T5781] Call Trace:
[ 250.488842][ T5781]
[ 250.491775][ T5781] dump_stack_lvl+0x188/0x250
[ 250.496471][ T5781] ? show_regs_print_info+0x20/0x20
[ 250.501712][ T5781] ? load_image+0x400/0x400
[ 250.506250][ T5781] sysfs_create_dir_ns+0x26a/0x290
[ 250.511467][ T5781] ? sysfs_warn_dup+0xa0/0xa0
[ 250.516263][ T5781] ? do_raw_spin_unlock+0x11d/0x230
[ 250.521670][ T5781] kobject_add_internal+0x6e0/0xd90
[ 250.527074][ T5781] kobject_init_and_add+0x128/0x190
[ 250.532282][ T5781] ? lockdep_softirqs_off+0x430/0x430
[ 250.537838][ T5781] ? kobject_add+0x230/0x230
[ 250.542433][ T5781] ? __init_swait_queue_head+0xa5/0x150
[ 250.547975][ T5781] gfs2_sys_fs_add+0x24f/0x4b0
[ 250.552924][ T5781] ? gfs2_recover_set+0x240/0x240
[ 250.557939][ T5781] ? snprintf+0xe5/0x140
[ 250.562348][ T5781] ? __free_pages+0x95/0x1a0
[ 250.566942][ T5781] ? vscnprintf+0x80/0x80
[ 250.571274][ T5781] gfs2_fill_super+0x120f/0x1f00
[ 250.576220][ T5781] ? gfs2_reconfigure+0xd30/0xd30
[ 250.581583][ T5781] ? sb_set_blocksize+0xa5/0xe0
[ 250.586509][ T5781] get_tree_bdev+0x3f1/0x610
[ 250.591172][ T5781] ? gfs2_reconfigure+0xd30/0xd30
[ 250.596184][ T5781] gfs2_get_tree+0x4d/0x1e0
[ 250.600697][ T5781] vfs_get_tree+0x88/0x270
[ 250.605098][ T5781] do_new_mount+0x24a/0xa40
[ 250.609585][ T5781] __se_sys_mount+0x2e3/0x3d0
[ 250.614245][ T5781] ? __x64_sys_mount+0xc0/0xc0
[ 250.619079][ T5781] ? lockdep_hardirqs_on+0x94/0x140
[ 250.624269][ T5781] ? __x64_sys_mount+0x1c/0xc0
[ 250.629038][ T5781] do_syscall_64+0x4c/0xa0
[ 250.633440][ T5781] ? clear_bhb_loop+0x30/0x80
[ 250.638271][ T5781] ? clear_bhb_loop+0x30/0x80
[ 250.643205][ T5781] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.649095][ T5781] RIP: 0033:0x7fc651a1118a
[ 250.653498][ T5781] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 250.673546][ T5781] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.682111][ T5781] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 250.690087][ T5781] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 250.698486][ T5781] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 250.706461][ T5781] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 250.714429][ T5781] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 250.722411][ T5781]
[ 250.728556][ T5781] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.741731][ T5781] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.036128][ T5783] loop1: detected capacity change from 0 to 32768
[ 251.101180][ T5783] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.108914][ T5783] CPU: 0 PID: 5783 Comm: syz.1.216 Not tainted syzkaller #0
[ 251.116215][ T5783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 251.126283][ T5783] Call Trace:
[ 251.129568][ T5783]
[ 251.132498][ T5783] dump_stack_lvl+0x188/0x250
[ 251.137272][ T5783] ? show_regs_print_info+0x20/0x20
[ 251.142492][ T5783] ? load_image+0x400/0x400
[ 251.147030][ T5783] sysfs_create_dir_ns+0x26a/0x290
[ 251.152154][ T5783] ? sysfs_warn_dup+0xa0/0xa0
[ 251.156840][ T5783] ? do_raw_spin_unlock+0x11d/0x230
[ 251.162063][ T5783] kobject_add_internal+0x6e0/0xd90
[ 251.167375][ T5783] kobject_init_and_add+0x128/0x190
[ 251.172577][ T5783] ? lockdep_softirqs_off+0x430/0x430
[ 251.177967][ T5783] ? kobject_add+0x230/0x230
[ 251.182567][ T5783] ? __init_swait_queue_head+0xa5/0x150
[ 251.188124][ T5783] gfs2_sys_fs_add+0x24f/0x4b0
[ 251.192999][ T5783] ? gfs2_recover_set+0x240/0x240
[ 251.198010][ T5783] ? snprintf+0xe5/0x140
[ 251.202237][ T5783] ? __free_pages+0x95/0x1a0
[ 251.206812][ T5783] ? vscnprintf+0x80/0x80
[ 251.211125][ T5783] gfs2_fill_super+0x120f/0x1f00
[ 251.216051][ T5783] ? gfs2_reconfigure+0xd30/0xd30
[ 251.221080][ T5783] ? sb_set_blocksize+0xa5/0xe0
[ 251.226004][ T5783] get_tree_bdev+0x3f1/0x610
[ 251.230669][ T5783] ? gfs2_reconfigure+0xd30/0xd30
[ 251.235685][ T5783] gfs2_get_tree+0x4d/0x1e0
[ 251.240434][ T5783] vfs_get_tree+0x88/0x270
[ 251.245034][ T5783] do_new_mount+0x24a/0xa40
[ 251.249571][ T5783] __se_sys_mount+0x2e3/0x3d0
[ 251.254361][ T5783] ? __x64_sys_mount+0xc0/0xc0
[ 251.259146][ T5783] ? lockdep_hardirqs_on+0x94/0x140
[ 251.264344][ T5783] ? __x64_sys_mount+0x1c/0xc0
[ 251.269103][ T5783] do_syscall_64+0x4c/0xa0
[ 251.273836][ T5783] ? clear_bhb_loop+0x30/0x80
[ 251.278643][ T5783] ? clear_bhb_loop+0x30/0x80
[ 251.283330][ T5783] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 251.289322][ T5783] RIP: 0033:0x7fc651a1118a
[ 251.293738][ T5783] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 251.313613][ T5783] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.322047][ T5783] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 251.330113][ T5783] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 251.338229][ T5783] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 251.346302][ T5783] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 251.354276][ T5783] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 251.362254][ T5783]
[ 251.366465][ T5783] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.379842][ T5783] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.682762][ T5785] loop1: detected capacity change from 0 to 32768
[ 251.734035][ T5785] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.741609][ T5785] CPU: 1 PID: 5785 Comm: syz.1.217 Not tainted syzkaller #0
[ 251.748918][ T5785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 251.759512][ T5785] Call Trace:
[ 251.762802][ T5785]
[ 251.765826][ T5785] dump_stack_lvl+0x188/0x250
[ 251.770521][ T5785] ? show_regs_print_info+0x20/0x20
[ 251.775746][ T5785] ? load_image+0x400/0x400
[ 251.780282][ T5785] sysfs_create_dir_ns+0x26a/0x290
[ 251.785527][ T5785] ? sysfs_warn_dup+0xa0/0xa0
[ 251.790220][ T5785] ? do_raw_spin_unlock+0x11d/0x230
[ 251.795555][ T5785] kobject_add_internal+0x6e0/0xd90
[ 251.800866][ T5785] kobject_init_and_add+0x128/0x190
[ 251.806351][ T5785] ? lockdep_softirqs_off+0x430/0x430
[ 251.812024][ T5785] ? kobject_add+0x230/0x230
[ 251.816798][ T5785] ? __init_swait_queue_head+0xa5/0x150
[ 251.822350][ T5785] gfs2_sys_fs_add+0x24f/0x4b0
[ 251.827127][ T5785] ? gfs2_recover_set+0x240/0x240
[ 251.832134][ T5785] ? snprintf+0xe5/0x140
[ 251.836362][ T5785] ? __free_pages+0x95/0x1a0
[ 251.841109][ T5785] ? vscnprintf+0x80/0x80
[ 251.845430][ T5785] gfs2_fill_super+0x120f/0x1f00
[ 251.850359][ T5785] ? gfs2_reconfigure+0xd30/0xd30
[ 251.855393][ T5785] ? sb_set_blocksize+0xa5/0xe0
[ 251.860240][ T5785] get_tree_bdev+0x3f1/0x610
[ 251.864888][ T5785] ? gfs2_reconfigure+0xd30/0xd30
[ 251.869910][ T5785] gfs2_get_tree+0x4d/0x1e0
[ 251.874405][ T5785] vfs_get_tree+0x88/0x270
[ 251.878816][ T5785] do_new_mount+0x24a/0xa40
[ 251.883403][ T5785] __se_sys_mount+0x2e3/0x3d0
[ 251.888076][ T5785] ? __x64_sys_mount+0xc0/0xc0
[ 251.892827][ T5785] ? lockdep_hardirqs_on+0x94/0x140
[ 251.898009][ T5785] ? __x64_sys_mount+0x1c/0xc0
[ 251.902924][ T5785] do_syscall_64+0x4c/0xa0
[ 251.907352][ T5785] ? clear_bhb_loop+0x30/0x80
[ 251.912008][ T5785] ? clear_bhb_loop+0x30/0x80
[ 251.916848][ T5785] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 251.922825][ T5785] RIP: 0033:0x7fc651a1118a
[ 251.927227][ T5785] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 251.947018][ T5785] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.955475][ T5785] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 251.963582][ T5785] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 251.971630][ T5785] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 251.980027][ T5785] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 251.988158][ T5785] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 251.996126][ T5785]
[ 252.001282][ T5785] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.014768][ T5785] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/02/04 18:21:48 executed programs: 203
[ 252.330738][ T5787] loop1: detected capacity change from 0 to 32768
[ 252.384196][ T5787] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.391902][ T5787] CPU: 1 PID: 5787 Comm: syz.1.218 Not tainted syzkaller #0
[ 252.399201][ T5787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 252.409271][ T5787] Call Trace:
[ 252.412559][ T5787]
[ 252.415493][ T5787] dump_stack_lvl+0x188/0x250
[ 252.420189][ T5787] ? show_regs_print_info+0x20/0x20
[ 252.425417][ T5787] ? load_image+0x400/0x400
[ 252.429957][ T5787] sysfs_create_dir_ns+0x26a/0x290
[ 252.435081][ T5787] ? sysfs_warn_dup+0xa0/0xa0
[ 252.439780][ T5787] ? do_raw_spin_unlock+0x11d/0x230
[ 252.444997][ T5787] kobject_add_internal+0x6e0/0xd90
[ 252.450214][ T5787] kobject_init_and_add+0x128/0x190
[ 252.455429][ T5787] ? lockdep_softirqs_off+0x430/0x430
[ 252.460920][ T5787] ? kobject_add+0x230/0x230
[ 252.465653][ T5787] ? __init_swait_queue_head+0xa5/0x150
[ 252.471382][ T5787] gfs2_sys_fs_add+0x24f/0x4b0
[ 252.476139][ T5787] ? gfs2_recover_set+0x240/0x240
[ 252.481145][ T5787] ? snprintf+0xe5/0x140
[ 252.485376][ T5787] ? __free_pages+0x95/0x1a0
[ 252.489967][ T5787] ? vscnprintf+0x80/0x80
[ 252.494288][ T5787] gfs2_fill_super+0x120f/0x1f00
[ 252.499215][ T5787] ? gfs2_reconfigure+0xd30/0xd30
[ 252.504233][ T5787] ? sb_set_blocksize+0xa5/0xe0
[ 252.509084][ T5787] get_tree_bdev+0x3f1/0x610
[ 252.514106][ T5787] ? gfs2_reconfigure+0xd30/0xd30
[ 252.519120][ T5787] gfs2_get_tree+0x4d/0x1e0
[ 252.523605][ T5787] vfs_get_tree+0x88/0x270
[ 252.528113][ T5787] do_new_mount+0x24a/0xa40
[ 252.532596][ T5787] __se_sys_mount+0x2e3/0x3d0
[ 252.537256][ T5787] ? __x64_sys_mount+0xc0/0xc0
[ 252.541999][ T5787] ? lockdep_hardirqs_on+0x94/0x140
[ 252.547176][ T5787] ? __x64_sys_mount+0x1c/0xc0
[ 252.552122][ T5787] do_syscall_64+0x4c/0xa0
[ 252.556538][ T5787] ? clear_bhb_loop+0x30/0x80
[ 252.561291][ T5787] ? clear_bhb_loop+0x30/0x80
[ 252.565962][ T5787] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.571853][ T5787] RIP: 0033:0x7fc651a1118a
[ 252.576423][ T5787] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 252.596221][ T5787] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.604629][ T5787] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 252.612598][ T5787] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 252.620646][ T5787] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 252.628917][ T5787] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 252.636871][ T5787] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 252.644865][ T5787]
[ 252.649475][ T5787] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.662795][ T5787] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.986837][ T5789] loop1: detected capacity change from 0 to 32768
[ 253.025847][ T5789] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.033362][ T5789] CPU: 0 PID: 5789 Comm: syz.1.219 Not tainted syzkaller #0
[ 253.040662][ T5789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 253.050996][ T5789] Call Trace:
[ 253.054297][ T5789]
[ 253.057244][ T5789] dump_stack_lvl+0x188/0x250
[ 253.061938][ T5789] ? show_regs_print_info+0x20/0x20
[ 253.067156][ T5789] ? load_image+0x400/0x400
[ 253.071682][ T5789] sysfs_create_dir_ns+0x26a/0x290
[ 253.076806][ T5789] ? sysfs_warn_dup+0xa0/0xa0
[ 253.081589][ T5789] ? do_raw_spin_unlock+0x11d/0x230
[ 253.086864][ T5789] kobject_add_internal+0x6e0/0xd90
[ 253.092081][ T5789] kobject_init_and_add+0x128/0x190
[ 253.097290][ T5789] ? lockdep_softirqs_off+0x430/0x430
[ 253.102682][ T5789] ? kobject_add+0x230/0x230
[ 253.107286][ T5789] ? __init_swait_queue_head+0xa5/0x150
[ 253.113030][ T5789] gfs2_sys_fs_add+0x24f/0x4b0
[ 253.117803][ T5789] ? gfs2_recover_set+0x240/0x240
[ 253.122909][ T5789] ? snprintf+0xe5/0x140
[ 253.127155][ T5789] ? __free_pages+0x95/0x1a0
[ 253.131726][ T5789] ? vscnprintf+0x80/0x80
[ 253.136065][ T5789] gfs2_fill_super+0x120f/0x1f00
[ 253.141195][ T5789] ? gfs2_reconfigure+0xd30/0xd30
[ 253.146304][ T5789] ? sb_set_blocksize+0xa5/0xe0
[ 253.151313][ T5789] get_tree_bdev+0x3f1/0x610
[ 253.155973][ T5789] ? gfs2_reconfigure+0xd30/0xd30
[ 253.161079][ T5789] gfs2_get_tree+0x4d/0x1e0
[ 253.165564][ T5789] vfs_get_tree+0x88/0x270
[ 253.169962][ T5789] do_new_mount+0x24a/0xa40
[ 253.174445][ T5789] __se_sys_mount+0x2e3/0x3d0
[ 253.179196][ T5789] ? __x64_sys_mount+0xc0/0xc0
[ 253.183946][ T5789] ? lockdep_hardirqs_on+0x94/0x140
[ 253.189220][ T5789] ? __x64_sys_mount+0x1c/0xc0
[ 253.193962][ T5789] do_syscall_64+0x4c/0xa0
[ 253.198361][ T5789] ? clear_bhb_loop+0x30/0x80
[ 253.203245][ T5789] ? clear_bhb_loop+0x30/0x80
[ 253.207926][ T5789] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 253.214042][ T5789] RIP: 0033:0x7fc651a1118a
[ 253.218626][ T5789] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 253.238536][ T5789] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.246954][ T5789] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 253.254913][ T5789] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 253.263027][ T5789] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 253.271208][ T5789] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 253.279172][ T5789] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 253.287153][ T5789]
[ 253.291660][ T5789] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.305670][ T5789] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 253.631335][ T5791] loop1: detected capacity change from 0 to 32768
[ 253.712352][ T5791] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.720286][ T5791] CPU: 0 PID: 5791 Comm: syz.1.220 Not tainted syzkaller #0
[ 253.727601][ T5791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 253.737756][ T5791] Call Trace:
[ 253.741209][ T5791]
[ 253.744237][ T5791] dump_stack_lvl+0x188/0x250
[ 253.749104][ T5791] ? show_regs_print_info+0x20/0x20
[ 253.754420][ T5791] ? load_image+0x400/0x400
[ 253.758951][ T5791] sysfs_create_dir_ns+0x26a/0x290
[ 253.764252][ T5791] ? sysfs_warn_dup+0xa0/0xa0
[ 253.769029][ T5791] ? do_raw_spin_unlock+0x11d/0x230
[ 253.774324][ T5791] kobject_add_internal+0x6e0/0xd90
[ 253.779666][ T5791] kobject_init_and_add+0x128/0x190
[ 253.784892][ T5791] ? lockdep_softirqs_off+0x430/0x430
[ 253.790379][ T5791] ? kobject_add+0x230/0x230
[ 253.795048][ T5791] ? __init_swait_queue_head+0xa5/0x150
[ 253.800763][ T5791] gfs2_sys_fs_add+0x24f/0x4b0
[ 253.805642][ T5791] ? gfs2_recover_set+0x240/0x240
[ 253.810661][ T5791] ? snprintf+0xe5/0x140
[ 253.815057][ T5791] ? __free_pages+0x95/0x1a0
[ 253.819651][ T5791] ? vscnprintf+0x80/0x80
[ 253.823980][ T5791] gfs2_fill_super+0x120f/0x1f00
[ 253.829084][ T5791] ? gfs2_reconfigure+0xd30/0xd30
[ 253.834099][ T5791] ? sb_set_blocksize+0xa5/0xe0
[ 253.839347][ T5791] get_tree_bdev+0x3f1/0x610
[ 253.844021][ T5791] ? gfs2_reconfigure+0xd30/0xd30
[ 253.849033][ T5791] gfs2_get_tree+0x4d/0x1e0
[ 253.853524][ T5791] vfs_get_tree+0x88/0x270
[ 253.858059][ T5791] do_new_mount+0x24a/0xa40
[ 253.862585][ T5791] __se_sys_mount+0x2e3/0x3d0
[ 253.867319][ T5791] ? __x64_sys_mount+0xc0/0xc0
[ 253.872071][ T5791] ? lockdep_hardirqs_on+0x94/0x140
[ 253.877291][ T5791] ? __x64_sys_mount+0x1c/0xc0
[ 253.882037][ T5791] do_syscall_64+0x4c/0xa0
[ 253.886441][ T5791] ? clear_bhb_loop+0x30/0x80
[ 253.891110][ T5791] ? clear_bhb_loop+0x30/0x80
[ 253.895781][ T5791] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 253.901657][ T5791] RIP: 0033:0x7fc651a1118a
[ 253.906066][ T5791] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 253.926167][ T5791] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.934567][ T5791] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 253.942647][ T5791] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 253.950696][ T5791] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 253.958764][ T5791] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 253.966930][ T5791] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 253.974903][ T5791]
[ 253.979180][ T5791] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.992710][ T5791] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.293888][ T5793] loop1: detected capacity change from 0 to 32768
[ 254.413862][ T5793] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.422162][ T5793] CPU: 1 PID: 5793 Comm: syz.1.221 Not tainted syzkaller #0
[ 254.429633][ T5793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 254.439698][ T5793] Call Trace:
[ 254.443122][ T5793]
[ 254.446060][ T5793] dump_stack_lvl+0x188/0x250
[ 254.450759][ T5793] ? show_regs_print_info+0x20/0x20
[ 254.456056][ T5793] ? load_image+0x400/0x400
[ 254.460628][ T5793] sysfs_create_dir_ns+0x26a/0x290
[ 254.465750][ T5793] ? sysfs_warn_dup+0xa0/0xa0
[ 254.470441][ T5793] ? do_raw_spin_unlock+0x11d/0x230
[ 254.475634][ T5793] kobject_add_internal+0x6e0/0xd90
[ 254.480822][ T5793] kobject_init_and_add+0x128/0x190
[ 254.486000][ T5793] ? lockdep_softirqs_off+0x430/0x430
[ 254.491362][ T5793] ? kobject_add+0x230/0x230
[ 254.495941][ T5793] ? __init_swait_queue_head+0xa5/0x150
[ 254.501481][ T5793] gfs2_sys_fs_add+0x24f/0x4b0
[ 254.506247][ T5793] ? gfs2_recover_set+0x240/0x240
[ 254.511266][ T5793] ? snprintf+0xe5/0x140
[ 254.515497][ T5793] ? __free_pages+0x95/0x1a0
[ 254.520070][ T5793] ? vscnprintf+0x80/0x80
[ 254.524580][ T5793] gfs2_fill_super+0x120f/0x1f00
[ 254.529533][ T5793] ? gfs2_reconfigure+0xd30/0xd30
[ 254.534568][ T5793] ? sb_set_blocksize+0xa5/0xe0
[ 254.539421][ T5793] get_tree_bdev+0x3f1/0x610
[ 254.544013][ T5793] ? gfs2_reconfigure+0xd30/0xd30
[ 254.549033][ T5793] gfs2_get_tree+0x4d/0x1e0
[ 254.553557][ T5793] vfs_get_tree+0x88/0x270
[ 254.558055][ T5793] do_new_mount+0x24a/0xa40
[ 254.562672][ T5793] __se_sys_mount+0x2e3/0x3d0
[ 254.567366][ T5793] ? __x64_sys_mount+0xc0/0xc0
[ 254.572220][ T5793] ? lockdep_hardirqs_on+0x94/0x140
[ 254.577661][ T5793] ? __x64_sys_mount+0x1c/0xc0
[ 254.582558][ T5793] do_syscall_64+0x4c/0xa0
[ 254.586998][ T5793] ? clear_bhb_loop+0x30/0x80
[ 254.591667][ T5793] ? clear_bhb_loop+0x30/0x80
[ 254.597046][ T5793] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 254.603031][ T5793] RIP: 0033:0x7fc651a1118a
[ 254.607606][ T5793] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 254.627292][ T5793] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.635867][ T5793] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 254.643915][ T5793] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 254.651901][ T5793] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 254.659970][ T5793] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 254.668016][ T5793] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 254.675982][ T5793]
[ 254.680154][ T5793] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.693515][ T5793] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.038283][ T5795] loop1: detected capacity change from 0 to 32768
[ 255.101357][ T5795] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.108843][ T5795] CPU: 0 PID: 5795 Comm: syz.1.222 Not tainted syzkaller #0
[ 255.116139][ T5795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 255.126333][ T5795] Call Trace:
[ 255.129619][ T5795]
[ 255.132651][ T5795] dump_stack_lvl+0x188/0x250
[ 255.137435][ T5795] ? show_regs_print_info+0x20/0x20
[ 255.142648][ T5795] ? load_image+0x400/0x400
[ 255.147175][ T5795] sysfs_create_dir_ns+0x26a/0x290
[ 255.152296][ T5795] ? sysfs_warn_dup+0xa0/0xa0
[ 255.156984][ T5795] ? do_raw_spin_unlock+0x11d/0x230
[ 255.162286][ T5795] kobject_add_internal+0x6e0/0xd90
[ 255.167504][ T5795] kobject_init_and_add+0x128/0x190
[ 255.172714][ T5795] ? lockdep_softirqs_off+0x430/0x430
[ 255.178096][ T5795] ? kobject_add+0x230/0x230
[ 255.182676][ T5795] ? __init_swait_queue_head+0xa5/0x150
[ 255.188330][ T5795] gfs2_sys_fs_add+0x24f/0x4b0
[ 255.193081][ T5795] ? gfs2_recover_set+0x240/0x240
[ 255.198087][ T5795] ? snprintf+0xe5/0x140
[ 255.202339][ T5795] ? __free_pages+0x95/0x1a0
[ 255.207073][ T5795] ? vscnprintf+0x80/0x80
[ 255.211404][ T5795] gfs2_fill_super+0x120f/0x1f00
[ 255.216347][ T5795] ? gfs2_reconfigure+0xd30/0xd30
[ 255.221367][ T5795] ? sb_set_blocksize+0xa5/0xe0
[ 255.226223][ T5795] get_tree_bdev+0x3f1/0x610
[ 255.230802][ T5795] ? gfs2_reconfigure+0xd30/0xd30
[ 255.235818][ T5795] gfs2_get_tree+0x4d/0x1e0
[ 255.240423][ T5795] vfs_get_tree+0x88/0x270
[ 255.244821][ T5795] do_new_mount+0x24a/0xa40
[ 255.249319][ T5795] __se_sys_mount+0x2e3/0x3d0
[ 255.254093][ T5795] ? __x64_sys_mount+0xc0/0xc0
[ 255.258853][ T5795] ? lockdep_hardirqs_on+0x94/0x140
[ 255.264043][ T5795] ? __x64_sys_mount+0x1c/0xc0
[ 255.268977][ T5795] do_syscall_64+0x4c/0xa0
[ 255.273525][ T5795] ? clear_bhb_loop+0x30/0x80
[ 255.278337][ T5795] ? clear_bhb_loop+0x30/0x80
[ 255.283008][ T5795] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.288887][ T5795] RIP: 0033:0x7fc651a1118a
[ 255.293292][ T5795] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 255.313072][ T5795] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.321857][ T5795] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 255.329988][ T5795] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 255.338230][ T5795] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 255.346297][ T5795] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 255.354262][ T5795] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 255.362346][ T5795]
[ 255.366609][ T5795] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.379894][ T5795] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.682089][ T5797] loop1: detected capacity change from 0 to 32768
[ 255.713550][ T1420] ieee802154 phy0 wpan0: encryption failed: -22
[ 255.719919][ T1420] ieee802154 phy1 wpan1: encryption failed: -22
[ 255.734094][ T5797] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.744705][ T5797] CPU: 0 PID: 5797 Comm: syz.1.223 Not tainted syzkaller #0
[ 255.752111][ T5797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 255.762170][ T5797] Call Trace:
[ 255.765583][ T5797]
[ 255.768536][ T5797] dump_stack_lvl+0x188/0x250
[ 255.773264][ T5797] ? show_regs_print_info+0x20/0x20
[ 255.778566][ T5797] ? load_image+0x400/0x400
[ 255.783222][ T5797] sysfs_create_dir_ns+0x26a/0x290
[ 255.788431][ T5797] ? sysfs_warn_dup+0xa0/0xa0
[ 255.793129][ T5797] ? do_raw_spin_unlock+0x11d/0x230
[ 255.798432][ T5797] kobject_add_internal+0x6e0/0xd90
[ 255.803651][ T5797] kobject_init_and_add+0x128/0x190
[ 255.808863][ T5797] ? lockdep_softirqs_off+0x430/0x430
[ 255.814253][ T5797] ? kobject_add+0x230/0x230
[ 255.818868][ T5797] ? __init_swait_queue_head+0xa5/0x150
[ 255.824530][ T5797] gfs2_sys_fs_add+0x24f/0x4b0
[ 255.829404][ T5797] ? gfs2_recover_set+0x240/0x240
[ 255.834508][ T5797] ? snprintf+0xe5/0x140
[ 255.838735][ T5797] ? __free_pages+0x95/0x1a0
[ 255.843392][ T5797] ? vscnprintf+0x80/0x80
[ 255.847731][ T5797] gfs2_fill_super+0x120f/0x1f00
[ 255.852658][ T5797] ? gfs2_reconfigure+0xd30/0xd30
[ 255.857670][ T5797] ? sb_set_blocksize+0xa5/0xe0
[ 255.862507][ T5797] get_tree_bdev+0x3f1/0x610
[ 255.867082][ T5797] ? gfs2_reconfigure+0xd30/0xd30
[ 255.872094][ T5797] gfs2_get_tree+0x4d/0x1e0
[ 255.876575][ T5797] vfs_get_tree+0x88/0x270
[ 255.881060][ T5797] do_new_mount+0x24a/0xa40
[ 255.885661][ T5797] __se_sys_mount+0x2e3/0x3d0
[ 255.890503][ T5797] ? __x64_sys_mount+0xc0/0xc0
[ 255.895281][ T5797] ? lockdep_hardirqs_on+0x94/0x140
[ 255.900470][ T5797] ? __x64_sys_mount+0x1c/0xc0
[ 255.905284][ T5797] do_syscall_64+0x4c/0xa0
[ 255.909685][ T5797] ? clear_bhb_loop+0x30/0x80
[ 255.914337][ T5797] ? clear_bhb_loop+0x30/0x80
[ 255.919076][ T5797] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.924946][ T5797] RIP: 0033:0x7fc651a1118a
[ 255.929430][ T5797] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 255.949451][ T5797] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.958143][ T5797] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 255.966388][ T5797] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 255.974374][ T5797] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 255.982343][ T5797] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 255.990321][ T5797] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 255.998314][ T5797]
[ 256.002966][ T5797] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.016238][ T5797] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.338801][ T5799] loop1: detected capacity change from 0 to 32768
[ 256.392765][ T5799] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.400592][ T5799] CPU: 0 PID: 5799 Comm: syz.1.224 Not tainted syzkaller #0
[ 256.407902][ T5799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 256.417980][ T5799] Call Trace:
[ 256.421453][ T5799]
[ 256.424385][ T5799] dump_stack_lvl+0x188/0x250
[ 256.429081][ T5799] ? show_regs_print_info+0x20/0x20
[ 256.434303][ T5799] ? load_image+0x400/0x400
[ 256.438857][ T5799] sysfs_create_dir_ns+0x26a/0x290
[ 256.444124][ T5799] ? sysfs_warn_dup+0xa0/0xa0
[ 256.448916][ T5799] ? do_raw_spin_unlock+0x11d/0x230
[ 256.454313][ T5799] kobject_add_internal+0x6e0/0xd90
[ 256.459531][ T5799] kobject_init_and_add+0x128/0x190
[ 256.464739][ T5799] ? lockdep_softirqs_off+0x430/0x430
[ 256.470153][ T5799] ? kobject_add+0x230/0x230
[ 256.474855][ T5799] ? __init_swait_queue_head+0xa5/0x150
[ 256.480485][ T5799] gfs2_sys_fs_add+0x24f/0x4b0
[ 256.485243][ T5799] ? gfs2_recover_set+0x240/0x240
[ 256.490251][ T5799] ? snprintf+0xe5/0x140
[ 256.494589][ T5799] ? __free_pages+0x95/0x1a0
[ 256.499170][ T5799] ? vscnprintf+0x80/0x80
[ 256.503581][ T5799] gfs2_fill_super+0x120f/0x1f00
[ 256.508523][ T5799] ? gfs2_reconfigure+0xd30/0xd30
[ 256.513540][ T5799] ? sb_set_blocksize+0xa5/0xe0
[ 256.518610][ T5799] get_tree_bdev+0x3f1/0x610
[ 256.523275][ T5799] ? gfs2_reconfigure+0xd30/0xd30
[ 256.528290][ T5799] gfs2_get_tree+0x4d/0x1e0
[ 256.532773][ T5799] vfs_get_tree+0x88/0x270
[ 256.537268][ T5799] do_new_mount+0x24a/0xa40
[ 256.541780][ T5799] __se_sys_mount+0x2e3/0x3d0
[ 256.546658][ T5799] ? __x64_sys_mount+0xc0/0xc0
[ 256.551560][ T5799] ? lockdep_hardirqs_on+0x94/0x140
[ 256.557018][ T5799] ? __x64_sys_mount+0x1c/0xc0
[ 256.561773][ T5799] do_syscall_64+0x4c/0xa0
[ 256.566277][ T5799] ? clear_bhb_loop+0x30/0x80
[ 256.570936][ T5799] ? clear_bhb_loop+0x30/0x80
[ 256.575715][ T5799] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 256.581948][ T5799] RIP: 0033:0x7fc651a1118a
[ 256.586442][ T5799] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 256.606262][ T5799] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.614946][ T5799] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 256.623018][ T5799] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 256.631373][ T5799] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 256.639643][ T5799] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 256.647693][ T5799] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 256.655667][ T5799]
[ 256.659746][ T5799] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.673124][ T5799] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.004664][ T5801] loop1: detected capacity change from 0 to 32768
[ 257.052294][ T5801] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.059795][ T5801] CPU: 0 PID: 5801 Comm: syz.1.225 Not tainted syzkaller #0
[ 257.067181][ T5801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 257.077477][ T5801] Call Trace:
[ 257.080759][ T5801]
[ 257.083787][ T5801] dump_stack_lvl+0x188/0x250
[ 257.088724][ T5801] ? show_regs_print_info+0x20/0x20
[ 257.094387][ T5801] ? load_image+0x400/0x400
[ 257.098914][ T5801] sysfs_create_dir_ns+0x26a/0x290
[ 257.104031][ T5801] ? sysfs_warn_dup+0xa0/0xa0
[ 257.108893][ T5801] ? do_raw_spin_unlock+0x11d/0x230
[ 257.114104][ T5801] kobject_add_internal+0x6e0/0xd90
[ 257.119325][ T5801] kobject_init_and_add+0x128/0x190
[ 257.124695][ T5801] ? lockdep_softirqs_off+0x430/0x430
[ 257.130086][ T5801] ? kobject_add+0x230/0x230
[ 257.134692][ T5801] ? __init_swait_queue_head+0xa5/0x150
[ 257.140458][ T5801] gfs2_sys_fs_add+0x24f/0x4b0
[ 257.145221][ T5801] ? gfs2_recover_set+0x240/0x240
[ 257.150458][ T5801] ? snprintf+0xe5/0x140
[ 257.154706][ T5801] ? __free_pages+0x95/0x1a0
[ 257.159283][ T5801] ? vscnprintf+0x80/0x80
[ 257.163793][ T5801] gfs2_fill_super+0x120f/0x1f00
[ 257.168733][ T5801] ? gfs2_reconfigure+0xd30/0xd30
[ 257.173749][ T5801] ? sb_set_blocksize+0xa5/0xe0
[ 257.178822][ T5801] get_tree_bdev+0x3f1/0x610
[ 257.183515][ T5801] ? gfs2_reconfigure+0xd30/0xd30
[ 257.188879][ T5801] gfs2_get_tree+0x4d/0x1e0
[ 257.193366][ T5801] vfs_get_tree+0x88/0x270
[ 257.197781][ T5801] do_new_mount+0x24a/0xa40
[ 257.202454][ T5801] __se_sys_mount+0x2e3/0x3d0
[ 257.207120][ T5801] ? __x64_sys_mount+0xc0/0xc0
[ 257.211873][ T5801] ? lockdep_hardirqs_on+0x94/0x140
[ 257.217154][ T5801] ? __x64_sys_mount+0x1c/0xc0
[ 257.222042][ T5801] do_syscall_64+0x4c/0xa0
[ 257.226525][ T5801] ? clear_bhb_loop+0x30/0x80
[ 257.231191][ T5801] ? clear_bhb_loop+0x30/0x80
[ 257.235875][ T5801] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.241834][ T5801] RIP: 0033:0x7fc651a1118a
[ 257.246236][ T5801] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 257.265912][ T5801] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.274320][ T5801] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 257.282592][ T5801] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 257.290577][ T5801] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 257.298758][ T5801] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 257.306773][ T5801] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 257.314837][ T5801]
[ 257.319270][ T5801] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.332745][ T5801] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/02/04 18:21:53 executed programs: 211
[ 257.631573][ T27] INFO: task kworker/1:1:23 blocked for more than 143 seconds.
[ 257.639371][ T27] Not tainted syzkaller #0
[ 257.640884][ T5803] loop1: detected capacity change from 0 to 32768
[ 257.645248][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 257.659713][ T27] task:kworker/1:1 state:D stack:24752 pid: 23 ppid: 2 flags:0x00004000
[ 257.669283][ T27] Workqueue: gfs_recovery gfs2_recover_func
[ 257.675494][ T27] Call Trace:
[ 257.676902][ T5803] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.678780][ T27]
[ 257.690076][ T27] __schedule+0x11ef/0x43c0
[ 257.694886][ T27] ? release_firmware_map_entry+0x190/0x190
[ 257.699007][ T5803] CPU: 1 PID: 5803 Comm: syz.1.226 Not tainted syzkaller #0
[ 257.700908][ T27] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 257.708167][ T5803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 257.708179][ T5803] Call Trace:
[ 257.708185][ T5803]
[ 257.708192][ T5803] dump_stack_lvl+0x188/0x250
[ 257.708213][ T5803] ? show_regs_print_info+0x20/0x20
[ 257.708230][ T5803] ? load_image+0x400/0x400
[ 257.708258][ T5803] sysfs_create_dir_ns+0x26a/0x290
[ 257.708275][ T5803] ? sysfs_warn_dup+0xa0/0xa0
[ 257.708292][ T5803] ? do_raw_spin_unlock+0x11d/0x230
[ 257.708311][ T5803] kobject_add_internal+0x6e0/0xd90
[ 257.708336][ T5803] kobject_init_and_add+0x128/0x190
[ 257.708353][ T5803] ? lockdep_softirqs_off+0x430/0x430
[ 257.708375][ T5803] ? kobject_add+0x230/0x230
[ 257.708397][ T5803] ? __init_swait_queue_head+0xa5/0x150
[ 257.708424][ T5803] gfs2_sys_fs_add+0x24f/0x4b0
[ 257.716015][ T27] ? _raw_spin_unlock_irq+0x1f/0x40
[ 257.724605][ T5803] ? gfs2_recover_set+0x240/0x240
[ 257.724628][ T5803] ? snprintf+0xe5/0x140
[ 257.724645][ T5803] ? __free_pages+0x95/0x1a0
[ 257.724664][ T5803] ? vscnprintf+0x80/0x80
[ 257.728509][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 257.730868][ T5803] gfs2_fill_super+0x120f/0x1f00
[ 257.736153][ T27] schedule+0x11b/0x1e0
[ 257.740706][ T5803] ? gfs2_reconfigure+0xd30/0xd30
[ 257.745536][ T27] io_schedule+0x7c/0xd0
[ 257.750287][ T5803] ? sb_set_blocksize+0xa5/0xe0
[ 257.755773][ T27] wait_on_page_bit_common+0x83b/0xe50
[ 257.760154][ T5803] get_tree_bdev+0x3f1/0x610
[ 257.765704][ T27] ? wait_on_page_bit+0x50/0x50
[ 257.770563][ T5803] ? gfs2_reconfigure+0xd30/0xd30
[ 257.776469][ T27] ? rcu_lock_release+0x20/0x20
[ 257.780746][ T5803] gfs2_get_tree+0x4d/0x1e0
[ 257.786558][ T27] ? blk_put_request+0x20/0x20
[ 257.791022][ T5803] vfs_get_tree+0x88/0x270
[ 257.796578][ T27] ? __get_log_header+0x1c0/0x4f0
[ 257.801217][ T5803] do_new_mount+0x24a/0xa40
[ 257.805690][ T27] gfs2_jhead_process_page+0x252/0xbf0
[ 257.810129][ T5803] __se_sys_mount+0x2e3/0x3d0
[ 257.810152][ T5803] ? __x64_sys_mount+0xc0/0xc0
[ 257.810172][ T5803] ? lockdep_hardirqs_on+0x94/0x140
[ 257.810189][ T5803] ? __x64_sys_mount+0x1c/0xc0
[ 257.810208][ T5803] do_syscall_64+0x4c/0xa0
[ 257.810223][ T5803] ? clear_bhb_loop+0x30/0x80
[ 257.810240][ T5803] ? clear_bhb_loop+0x30/0x80
[ 257.810257][ T5803] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.810274][ T5803] RIP: 0033:0x7fc651a1118a
[ 257.810291][ T5803] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 257.810304][ T5803] RSP: 002b:00007fc651072e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.810322][ T5803] RAX: ffffffffffffffda RBX: 00007fc651072ee0 RCX: 00007fc651a1118a
[ 257.810333][ T5803] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007fc651072ea0
[ 257.810344][ T5803] RBP: 0000200000000140 R08: 00007fc651072ee0 R09: 0000000002810000
[ 257.810356][ T5803] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 257.810367][ T5803] R13: 00007fc651072ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 257.810391][ T5803]
[ 257.816352][ T27] ? gfs2_end_log_read+0x500/0x500
[ 257.821682][ T5803] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.829085][ T27] ? submit_bio+0x2c1/0x560
[ 257.834940][ T5803] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.839088][ T27] ? submit_bio_noacct+0x800/0x800
[ 258.048340][ T27] gfs2_find_jhead+0xec2/0x1000
[ 258.053642][ T27] gfs2_recover_func+0x73a/0x1cf0
[ 258.058738][ T27] ? is_dynamic_key+0x1f0/0x1f0
[ 258.063646][ T27] ? __lock_acquire+0x13bc/0x7d10
[ 258.068764][ T27] ? __get_log_header+0x4f0/0x4f0
[ 258.073861][ T27] ? mark_lock+0x94/0x320
[ 258.078280][ T27] ? __lock_acquire+0x13bc/0x7d10
[ 258.083385][ T27] ? verify_lock_unused+0x140/0x140
[ 258.088697][ T27] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 258.094735][ T27] ? __schedule+0x11f7/0x43c0
[ 258.099439][ T27] ? _raw_spin_unlock_irq+0x1f/0x40
[ 258.104732][ T27] process_one_work+0x85f/0x1010
[ 258.109686][ T27] ? worker_detach_from_pool+0x240/0x240
[ 258.115611][ T27] ? lockdep_hardirqs_off+0x70/0x100
[ 258.121178][ T27] ? _raw_spin_lock_irq+0xb7/0xf0
[ 258.126310][ T27] ? _raw_spin_lock_irqsave+0x100/0x100
[ 258.131957][ T27] ? wq_worker_running+0x97/0x170
[ 258.136992][ T27] worker_thread+0xaa6/0x1290
[ 258.141717][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 258.147175][ T27] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 258.153380][ T27] kthread+0x436/0x520
[ 258.157466][ T27] ? rcu_lock_release+0x20/0x20
[ 258.162625][ T27] ? kthread_blkcg+0xd0/0xd0
[ 258.167228][ T27] ret_from_fork+0x1f/0x30
[ 258.171797][ T27]
[ 258.174953][ T27] INFO: task syz.0.25:5370 blocked for more than 143 seconds.
[ 258.182458][ T27] Not tainted syzkaller #0
[ 258.187387][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 258.196146][ T27] task:syz.0.25 state:D stack:24440 pid: 5370 ppid: 5133 flags:0x00004004
[ 258.205782][ T27] Call Trace:
[ 258.209054][ T27]
[ 258.212030][ T27] __schedule+0x11ef/0x43c0
[ 258.216546][ T27] ? mark_lock+0x94/0x320
[ 258.221038][ T27] ? lock_chain_count+0x20/0x20
[ 258.226002][ T27] ? release_firmware_map_entry+0x190/0x190
[ 258.231932][ T27] ? _raw_spin_unlock_irqrestore+0x82/0x120
[ 258.237913][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 258.243184][ T27] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 258.249095][ T27] schedule+0x11b/0x1e0
[ 258.253411][ T27] bit_wait+0xd/0xc0
[ 258.257352][ T27] out_of_line_wait_on_bit+0x173/0x230
[ 258.263404][ T27] ? out_of_line_wait_on_bit_lock+0x190/0x190
[ 258.269584][ T27] ? __wait_on_bit+0x170/0x170
[ 258.274405][ T27] ? bit_waitqueue+0x30/0x30
[ 258.279008][ T27] ? do_raw_spin_unlock+0x11d/0x230
[ 258.284777][ T27] gfs2_recover_journal+0x104/0x150
[ 258.289987][ T27] init_journal+0x1779/0x22f0
[ 258.294735][ T27] ? end_bio_io_page+0x100/0x100
[ 258.299718][ T27] ? snprintf+0xe5/0x140
[ 258.304044][ T27] ? init_journal+0x74d/0x22f0
[ 258.308813][ T27] ? vscnprintf+0x80/0x80
[ 258.313283][ T27] ? gfs2_glock_nq_num+0x17a/0x1b0
[ 258.318399][ T27] init_inodes+0xdb/0x320
[ 258.322983][ T27] gfs2_fill_super+0x16b2/0x1f00
[ 258.327978][ T27] ? gfs2_reconfigure+0xd30/0xd30
[ 258.333079][ T27] ? gfs2_glock_nq_num+0x82/0x1b0
[ 258.338221][ T27] ? sb_set_blocksize+0xa5/0xe0
[ 258.343336][ T27] get_tree_bdev+0x3f1/0x610
[ 258.347966][ T27] ? gfs2_reconfigure+0xd30/0xd30
[ 258.353297][ T27] gfs2_get_tree+0x4d/0x1e0
[ 258.357911][ T27] vfs_get_tree+0x88/0x270
[ 258.362399][ T27] do_new_mount+0x24a/0xa40
[ 258.366915][ T27] __se_sys_mount+0x2e3/0x3d0
[ 258.372307][ T27] ? __x64_sys_mount+0xc0/0xc0
[ 258.377088][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 258.382325][ T27] ? __x64_sys_mount+0x1c/0xc0
[ 258.387100][ T27] do_syscall_64+0x4c/0xa0
[ 258.391555][ T27] ? clear_bhb_loop+0x30/0x80
[ 258.396355][ T27] ? clear_bhb_loop+0x30/0x80
[ 258.401036][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 258.407140][ T27] RIP: 0033:0x7f6ec7f0318a
[ 258.411597][ T27] RSP: 002b:00007f6ec7564e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.420010][ T27] RAX: ffffffffffffffda RBX: 00007f6ec7564ee0 RCX: 00007f6ec7f0318a
[ 258.428354][ T27] RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007f6ec7564ea0
[ 258.436439][ T27] RBP: 0000200000000140 R08: 00007f6ec7564ee0 R09: 0000000002810000
[ 258.444469][ T27] R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
[ 258.452495][ T27] R13: 00007f6ec7564ea0 R14: 0000000000037fd1 R15: 00002000000001c0
[ 258.460565][ T27]
[ 258.463838][ T27]
[ 258.463838][ T27] Showing all locks held in the system:
[ 258.471681][ T27] 1 lock held by ksoftirqd/1/20:
[ 258.476636][ T27] #0: ffff8880b913a358 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140
[ 258.492630][ T27] 2 locks held by kworker/1:1/23:
[ 258.497686][ T27] #0: ffff888018f89538 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x761/0x1010
[ 258.508934][ T27] #1: ffffc90000ddfd00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010
[ 258.520701][ T27] 1 lock held by khungtaskd/27:
[ 258.525847][ T27] #0: ffffffff8c31eaa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 258.535994][ T27] 2 locks held by getty/3950:
[ 258.540679][ T27] #0: ffff88802c4cd098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 258.552855][ T27] #1: ffffc90002cf62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5df/0x1a70
[ 258.563528][ T27] 3 locks held by kworker/1:5/4247:
[ 258.568813][ T27] #0: ffff888016c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x761/0x1010
[ 258.581669][ T27] #1: ffffc90002fffd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010
[ 258.596110][ T27] #2: ffffffff8c323528 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d1/0x750
[ 258.608538][ T27] 2 locks held by kworker/1:14/4257:
[ 258.615356][ T27] #0: ffff888016c72138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x761/0x1010
[ 258.627298][ T27] #1: ffffc9000308fd00 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010
[ 258.640741][ T27] 1 lock held by syz.0.25/5370:
[ 258.647112][ T27] #0: ffff88807823e0e0 (&type->s_umount_key#53/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950
[ 258.658633][ T27]
[ 258.660969][ T27] =============================================
[ 258.660969][ T27]
[ 258.670859][ T27] NMI backtrace for cpu 0
[ 258.675197][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[ 258.682397][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 258.692461][ T27] Call Trace:
[ 258.695746][ T27]
[ 258.698682][ T27] dump_stack_lvl+0x188/0x250
[ 258.703381][ T27] ? show_regs_print_info+0x20/0x20
[ 258.708591][ T27] ? load_image+0x400/0x400
[ 258.713194][ T27] ? tick_nohz_tick_stopped+0x7b/0xb0
[ 258.718595][ T27] ? nmi_cpu_backtrace+0x1b2/0x3d0
[ 258.723715][ T27] nmi_cpu_backtrace+0x3a2/0x3d0
[ 258.728753][ T27] ? nmi_trigger_cpumask_backtrace+0x280/0x280
[ 258.734912][ T27] ? _printk+0xda/0x130
[ 258.739089][ T27] ? load_image+0x400/0x400
[ 258.743612][ T27] ? load_image+0x400/0x400
[ 258.748220][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 258.754310][ T27] nmi_trigger_cpumask_backtrace+0x163/0x280
[ 258.760483][ T27] watchdog+0xe0f/0xe50
[ 258.764761][ T27] kthread+0x436/0x520
[ 258.768840][ T27] ? hungtask_pm_notify+0x40/0x40
[ 258.774309][ T27] ? kthread_blkcg+0xd0/0xd0
[ 258.779018][ T27] ret_from_fork+0x1f/0x30
[ 258.783457][ T27]
[ 258.786918][ T27] Sending NMI from CPU 0 to CPUs 1:
[ 258.792420][ C1] NMI backtrace for cpu 1
[ 258.792432][ C1] CPU: 1 PID: 160 Comm: kworker/u4:3 Not tainted syzkaller #0
[ 258.792447][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 258.792457][ C1] Workqueue: bat_events batadv_nc_worker
[ 258.792477][ C1] RIP: 0010:__lock_acquire+0x89a/0x7d10
[ 258.792498][ C1] Code: 0f 85 d8 64 00 00 41 83 3f 00 41 0f 94 c5 45 00 ed 41 80 c5 02 48 8b 84 24 88 00 00 00 42 0f b6 04 00 84 c0 0f 85 35 62 00 00 <44> 3b 33 0f 8d 86 02 00 00 49 63 de 48 8d 04 9b 48 8b 4c 24 30 4c
[ 258.792511][ C1] RSP: 0018:ffffc90001fc7820 EFLAGS: 00000046
[ 258.792523][ C1] RAX: 0000000000000000 RBX: ffff88801de9c668 RCX: 0000000000000001
[ 258.792533][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff901d10c0
[ 258.792543][ C1] RBP: ffffc90001fc7a70 R08: dffffc0000000000 R09: 1ffffffff203a218
[ 258.792554][ C1] R10: dffffc0000000000 R11: fffffbfff203a219 R12: 0000000000000000
[ 258.792565][ C1] R13: ffff88801de9c604 R14: 0000000000000000 R15: ffff88801de9c654
[ 258.792576][ C1] FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
[ 258.792588][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 258.792599][ C1] CR2: 00007fc649c52000 CR3: 000000007ebb9000 CR4: 00000000003506e0
[ 258.792613][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 258.792622][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 258.792631][ C1] Call Trace:
[ 258.792636][ C1]
[ 258.792643][ C1] ? mark_lock+0x94/0x320
[ 258.792662][ C1] ? verify_lock_unused+0x140/0x140
[ 258.792680][ C1] ? __mutex_unlock_slowpath+0x1b0/0x6c0
[ 258.792696][ C1] ? lock_timer_base+0x25a/0x270
[ 258.792712][ C1] ? verify_lock_unused+0x140/0x140
[ 258.792732][ C1] lock_acquire+0x19e/0x400
[ 258.792748][ C1] ? rcu_lock_acquire+0x5/0x30
[ 258.792763][ C1] ? rcu_lock_release+0x5/0x20
[ 258.792776][ C1] ? read_lock_is_recursive+0x10/0x10
[ 258.792792][ C1] ? __lock_acquire+0x7d10/0x7d10
[ 258.792807][ C1] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 258.792826][ C1] rcu_lock_acquire+0x2a/0x30
[ 258.792839][ C1] ? rcu_lock_acquire+0x5/0x30
[ 258.792851][ C1] batadv_nc_worker+0xc9/0x5c0
[ 258.792867][ C1] process_one_work+0x85f/0x1010
[ 258.792887][ C1] ? worker_detach_from_pool+0x240/0x240
[ 258.792902][ C1] ? lockdep_hardirqs_off+0x70/0x100
[ 258.792919][ C1] ? _raw_spin_lock_irq+0xb7/0xf0
[ 258.792935][ C1] ? _raw_spin_lock_irqsave+0x100/0x100
[ 258.792952][ C1] ? wq_worker_running+0x97/0x170
[ 258.792966][ C1] worker_thread+0xaa6/0x1290
[ 258.792983][ C1] ? lockdep_hardirqs_on+0x94/0x140
[ 258.792998][ C1] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 258.793018][ C1] kthread+0x436/0x520
[ 258.793031][ C1] ? rcu_lock_release+0x20/0x20
[ 258.793044][ C1] ? kthread_blkcg+0xd0/0xd0
[ 258.793058][ C1] ret_from_fork+0x1f/0x30
[ 258.793077][ C1]
[ 258.834895][ T5805] loop1: detected capacity change from 0 to 32768
[ 258.853761][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 259.092818][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[ 259.100084][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 259.110122][ T27] Call Trace:
[ 259.113387][ T27]
[ 259.116316][ T27] dump_stack_lvl+0x188/0x250
[ 259.120984][ T27] ? show_regs_print_info+0x20/0x20
[ 259.126167][ T27] ? load_image+0x400/0x400
[ 259.130659][ T27] panic+0x2e5/0x810
[ 259.134542][ T27] ? schedule_preempt_disabled+0x20/0x20
[ 259.140345][ T27] ? bpf_jit_dump+0xd0/0xd0
[ 259.144833][ T27] ? __irq_work_queue_local+0x12c/0x190
[ 259.150367][ T27] ? nmi_trigger_cpumask_backtrace+0x260/0x280
[ 259.156531][ T27] watchdog+0xe4e/0xe50
[ 259.160764][ T27] kthread+0x436/0x520
[ 259.164825][ T27] ? hungtask_pm_notify+0x40/0x40
[ 259.169842][ T27] ? kthread_blkcg+0xd0/0xd0
[ 259.174525][ T27] ret_from_fork+0x1f/0x30
[ 259.178947][ T27]
[ 259.182341][ T27] Kernel Offset: disabled
[ 259.186681][ T27] Rebooting in 86400 seconds..