ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  242.599392][ T6367] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  242.607841][ T6367] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  242.615851][ T6367] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  242.623851][ T6367] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  242.631950][ T6367] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  242.639959][ T6367] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  242.648150][ T6367]  </TASK>
[  242.652527][ T6367] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  242.665725][ T6367] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  243.152118][ T6374] loop3: detected capacity change from 0 to 32768
[  243.203846][ T6374] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  243.212865][ T6374] CPU: 1 PID: 6374 Comm: syz.3.360 Not tainted syzkaller #0
[  243.220266][ T6374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  243.230344][ T6374] Call Trace:
[  243.233643][ T6374]  <TASK>
[  243.236597][ T6374]  dump_stack_lvl+0x188/0x250
[  243.241303][ T6374]  ? show_regs_print_info+0x20/0x20
[  243.246523][ T6374]  ? load_image+0x400/0x400
[  243.251073][ T6374]  sysfs_create_dir_ns+0x26a/0x290
[  243.256203][ T6374]  ? sysfs_warn_dup+0xa0/0xa0
[  243.260986][ T6374]  ? do_raw_spin_unlock+0x11d/0x230
[  243.266298][ T6374]  kobject_add_internal+0x6e0/0xd90
[  243.271524][ T6374]  kobject_init_and_add+0x128/0x190
[  243.276746][ T6374]  ? lockdep_softirqs_off+0x430/0x430
[  243.282149][ T6374]  ? kobject_add+0x230/0x230
[  243.286769][ T6374]  ? __init_swait_queue_head+0xa5/0x150
[  243.292343][ T6374]  gfs2_sys_fs_add+0x24f/0x4b0
[  243.297227][ T6374]  ? gfs2_recover_set+0x240/0x240
[  243.302302][ T6374]  ? snprintf+0xe5/0x140
[  243.306572][ T6374]  ? __free_pages+0x95/0x1a0
[  243.311298][ T6374]  ? vscnprintf+0x80/0x80
[  243.315673][ T6374]  gfs2_fill_super+0x120f/0x1f00
[  243.320669][ T6374]  ? gfs2_reconfigure+0xd30/0xd30
[  243.325749][ T6374]  ? sb_set_blocksize+0xa5/0xe0
[  243.330717][ T6374]  get_tree_bdev+0x3f1/0x610
[  243.335430][ T6374]  ? gfs2_reconfigure+0xd30/0xd30
[  243.340480][ T6374]  gfs2_get_tree+0x4d/0x1e0
[  243.345008][ T6374]  vfs_get_tree+0x88/0x270
[  243.349457][ T6374]  do_new_mount+0x24a/0xa40
[  243.353986][ T6374]  __se_sys_mount+0x2e3/0x3d0
[  243.358686][ T6374]  ? __x64_sys_mount+0xc0/0xc0
[  243.363506][ T6374]  ? lockdep_hardirqs_on+0x94/0x140
[  243.368728][ T6374]  ? __x64_sys_mount+0x1c/0xc0
[  243.373518][ T6374]  do_syscall_64+0x4c/0xa0
[  243.377960][ T6374]  ? clear_bhb_loop+0x30/0x80
[  243.382744][ T6374]  ? clear_bhb_loop+0x30/0x80
[  243.387448][ T6374]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  243.393359][ T6374] RIP: 0033:0x7feb5a094b8a
[  243.397798][ T6374] 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
[  243.417792][ T6374] RSP: 002b:00007feb592f9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  243.426232][ T6374] RAX: ffffffffffffffda RBX: 00007feb592f9ee0 RCX: 00007feb5a094b8a
[  243.434220][ T6374] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb592f9ea0
[  243.442352][ T6374] RBP: 0000200000000400 R08: 00007feb592f9ee0 R09: 0000000000000000
2026/02/28 14:50:47 executed programs: 357
[  243.450451][ T6374] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  243.458457][ T6374] R13: 00007feb592f9ea0 R14: 00000000000125bb R15: 00002000000004c0
[  243.466495][ T6374]  </TASK>
[  243.470772][ T6374] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  243.484040][ T6374] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  243.686047][ T6377] loop4: detected capacity change from 0 to 32768
[  243.840693][ T6379] loop5: detected capacity change from 0 to 32768
[  244.067119][ T6383] loop2: detected capacity change from 0 to 32768
[  244.105162][ T6379] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  244.112595][ T6379] CPU: 0 PID: 6379 Comm: syz.5.355 Not tainted syzkaller #0
[  244.119971][ T6379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  244.130045][ T6379] Call Trace:
[  244.133366][ T6379]  <TASK>
[  244.136322][ T6379]  dump_stack_lvl+0x188/0x250
[  244.141037][ T6379]  ? show_regs_print_info+0x20/0x20
[  244.146267][ T6379]  ? load_image+0x400/0x400
[  244.150806][ T6379]  sysfs_create_dir_ns+0x26a/0x290
[  244.155941][ T6379]  ? sysfs_warn_dup+0xa0/0xa0
[  244.160656][ T6379]  ? do_raw_spin_unlock+0x11d/0x230
[  244.165882][ T6379]  kobject_add_internal+0x6e0/0xd90
[  244.171205][ T6379]  kobject_init_and_add+0x128/0x190
[  244.176428][ T6379]  ? lockdep_softirqs_off+0x430/0x430
[  244.181919][ T6379]  ? kobject_add+0x230/0x230
[  244.186541][ T6379]  ? __init_swait_queue_head+0xa5/0x150
[  244.192107][ T6379]  gfs2_sys_fs_add+0x24f/0x4b0
[  244.196889][ T6379]  ? gfs2_recover_set+0x240/0x240
[  244.201930][ T6379]  ? snprintf+0xe5/0x140
[  244.206192][ T6379]  ? __free_pages+0x95/0x1a0
[  244.210896][ T6379]  ? vscnprintf+0x80/0x80
[  244.215248][ T6379]  gfs2_fill_super+0x120f/0x1f00
[  244.220318][ T6379]  ? gfs2_reconfigure+0xd30/0xd30
[  244.225393][ T6379]  ? sb_set_blocksize+0xa5/0xe0
[  244.230272][ T6379]  get_tree_bdev+0x3f1/0x610
[  244.234893][ T6379]  ? gfs2_reconfigure+0xd30/0xd30
[  244.239994][ T6379]  gfs2_get_tree+0x4d/0x1e0
[  244.244534][ T6379]  vfs_get_tree+0x88/0x270
[  244.248987][ T6379]  do_new_mount+0x24a/0xa40
[  244.253612][ T6379]  __se_sys_mount+0x2e3/0x3d0
[  244.258325][ T6379]  ? __x64_sys_mount+0xc0/0xc0
[  244.263122][ T6379]  ? lockdep_hardirqs_on+0x94/0x140
[  244.268341][ T6379]  ? __x64_sys_mount+0x1c/0xc0
[  244.273219][ T6379]  do_syscall_64+0x4c/0xa0
[  244.277918][ T6379]  ? clear_bhb_loop+0x30/0x80
[  244.282625][ T6379]  ? clear_bhb_loop+0x30/0x80
[  244.287329][ T6379]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  244.293340][ T6379] RIP: 0033:0x7fdc19fe7b8a
[  244.297817][ T6379] 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
[  244.317546][ T6379] RSP: 002b:00007fdc1924ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  244.326026][ T6379] RAX: ffffffffffffffda RBX: 00007fdc1924cee0 RCX: 00007fdc19fe7b8a
[  244.334029][ T6379] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdc1924cea0
[  244.342129][ T6379] RBP: 0000200000000400 R08: 00007fdc1924cee0 R09: 0000000000000000
[  244.350219][ T6379] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  244.358302][ T6379] R13: 00007fdc1924cea0 R14: 00000000000125bb R15: 00002000000004c0
[  244.363471][ T6388] loop0: detected capacity change from 0 to 32768
[  244.366420][ T6379]  </TASK>
[  244.367644][ T6379] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  244.376300][ T6377] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  244.389741][ T6379] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  244.397135][ T6377] CPU: 1 PID: 6377 Comm: syz.4.362 Not tainted syzkaller #0
[  244.397156][ T6377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  244.397169][ T6377] Call Trace:
[  244.424383][ T6377]  <TASK>
[  244.427417][ T6377]  dump_stack_lvl+0x188/0x250
[  244.432131][ T6377]  ? show_regs_print_info+0x20/0x20
[  244.437359][ T6377]  ? load_image+0x400/0x400
[  244.441906][ T6377]  sysfs_create_dir_ns+0x26a/0x290
[  244.447244][ T6377]  ? sysfs_warn_dup+0xa0/0xa0
[  244.452044][ T6377]  ? do_raw_spin_unlock+0x11d/0x230
[  244.457374][ T6377]  kobject_add_internal+0x6e0/0xd90
[  244.462614][ T6377]  kobject_init_and_add+0x128/0x190
[  244.468191][ T6377]  ? lockdep_softirqs_off+0x430/0x430
[  244.473602][ T6377]  ? kobject_add+0x230/0x230
[  244.478320][ T6377]  ? __init_swait_queue_head+0xa5/0x150
[  244.484015][ T6377]  gfs2_sys_fs_add+0x24f/0x4b0
[  244.488848][ T6377]  ? gfs2_recover_set+0x240/0x240
[  244.493994][ T6377]  ? snprintf+0xe5/0x140
[  244.498361][ T6377]  ? __free_pages+0x95/0x1a0
[  244.502992][ T6377]  ? vscnprintf+0x80/0x80
[  244.507404][ T6377]  gfs2_fill_super+0x120f/0x1f00
[  244.512382][ T6377]  ? gfs2_reconfigure+0xd30/0xd30
[  244.517449][ T6377]  ? sb_set_blocksize+0xa5/0xe0
[  244.522418][ T6377]  get_tree_bdev+0x3f1/0x610
[  244.527037][ T6377]  ? gfs2_reconfigure+0xd30/0xd30
[  244.532091][ T6377]  gfs2_get_tree+0x4d/0x1e0
[  244.536615][ T6377]  vfs_get_tree+0x88/0x270
[  244.541053][ T6377]  do_new_mount+0x24a/0xa40
[  244.545600][ T6377]  __se_sys_mount+0x2e3/0x3d0
[  244.550305][ T6377]  ? __x64_sys_mount+0xc0/0xc0
[  244.555177][ T6377]  ? lockdep_hardirqs_on+0x94/0x140
[  244.560407][ T6377]  ? __x64_sys_mount+0x1c/0xc0
[  244.565219][ T6377]  do_syscall_64+0x4c/0xa0
[  244.569665][ T6377]  ? clear_bhb_loop+0x30/0x80
[  244.574362][ T6377]  ? clear_bhb_loop+0x30/0x80
[  244.579060][ T6377]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  244.584971][ T6377] RIP: 0033:0x7f20fe22cb8a
[  244.589427][ T6377] 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
[  244.609386][ T6377] RSP: 002b:00007f20fd491e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  244.617842][ T6377] RAX: ffffffffffffffda RBX: 00007f20fd491ee0 RCX: 00007f20fe22cb8a
[  244.625863][ T6377] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f20fd491ea0
[  244.633874][ T6377] RBP: 0000200000000400 R08: 00007f20fd491ee0 R09: 0000000000000000
[  244.641887][ T6377] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  244.649888][ T6377] R13: 00007f20fd491ea0 R14: 00000000000125bb R15: 00002000000004c0
[  244.658011][ T6377]  </TASK>
[  244.662070][ T6377] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  244.675408][ T6377] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  244.759194][ T6383] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  244.759202][ T6388] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  244.759218][ T6388] CPU: 1 PID: 6388 Comm: syz.0.363 Not tainted syzkaller #0
[  244.781269][ T6388] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  244.791519][ T6388] Call Trace:
[  244.794804][ T6388]  <TASK>
[  244.797739][ T6388]  dump_stack_lvl+0x188/0x250
[  244.802433][ T6388]  ? show_regs_print_info+0x20/0x20
[  244.807645][ T6388]  ? load_image+0x400/0x400
[  244.812172][ T6388]  sysfs_create_dir_ns+0x26a/0x290
[  244.817299][ T6388]  ? sysfs_warn_dup+0xa0/0xa0
[  244.821987][ T6388]  ? do_raw_spin_unlock+0x11d/0x230
[  244.827203][ T6388]  kobject_add_internal+0x6e0/0xd90
[  244.832414][ T6388]  kobject_init_and_add+0x128/0x190
[  244.837614][ T6388]  ? lockdep_softirqs_off+0x430/0x430
[  244.843174][ T6388]  ? kobject_add+0x230/0x230
[  244.847845][ T6388]  ? __init_swait_queue_head+0xa5/0x150
[  244.853486][ T6388]  gfs2_sys_fs_add+0x24f/0x4b0
[  244.858372][ T6388]  ? gfs2_recover_set+0x240/0x240
[  244.863399][ T6388]  ? snprintf+0xe5/0x140
[  244.867754][ T6388]  ? __free_pages+0x95/0x1a0
[  244.872353][ T6388]  ? vscnprintf+0x80/0x80
[  244.876698][ T6388]  gfs2_fill_super+0x120f/0x1f00
[  244.881663][ T6388]  ? gfs2_reconfigure+0xd30/0xd30
[  244.886988][ T6388]  ? sb_set_blocksize+0xa5/0xe0
[  244.891968][ T6388]  get_tree_bdev+0x3f1/0x610
[  244.896676][ T6388]  ? gfs2_reconfigure+0xd30/0xd30
[  244.901733][ T6388]  gfs2_get_tree+0x4d/0x1e0
[  244.906360][ T6388]  vfs_get_tree+0x88/0x270
[  244.910801][ T6388]  do_new_mount+0x24a/0xa40
[  244.915341][ T6388]  __se_sys_mount+0x2e3/0x3d0
[  244.920145][ T6388]  ? __x64_sys_mount+0xc0/0xc0
[  244.925026][ T6388]  ? lockdep_hardirqs_on+0x94/0x140
[  244.930246][ T6388]  ? __x64_sys_mount+0x1c/0xc0
[  244.935032][ T6388]  do_syscall_64+0x4c/0xa0
[  244.939477][ T6388]  ? clear_bhb_loop+0x30/0x80
[  244.944270][ T6388]  ? clear_bhb_loop+0x30/0x80
[  244.948972][ T6388]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  244.954888][ T6388] RIP: 0033:0x7f4050558b8a
[  244.959324][ T6388] 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
[  244.979223][ T6388] RSP: 002b:00007f404f7bde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  244.987754][ T6388] RAX: ffffffffffffffda RBX: 00007f404f7bdee0 RCX: 00007f4050558b8a
[  244.995750][ T6388] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f404f7bdea0
[  245.003845][ T6388] RBP: 0000200000000400 R08: 00007f404f7bdee0 R09: 0000000000000000
[  245.011842][ T6388] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  245.019922][ T6388] R13: 00007f404f7bdea0 R14: 00000000000125bb R15: 00002000000004c0
[  245.027931][ T6388]  </TASK>
[  245.031116][ T6383] CPU: 0 PID: 6383 Comm: syz.2.365 Not tainted syzkaller #0
[  245.033264][ T6388] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  245.038515][ T6383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  245.038530][ T6383] Call Trace:
[  245.038538][ T6383]  <TASK>
[  245.038547][ T6383]  dump_stack_lvl+0x188/0x250
[  245.052465][ T6388] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  245.062003][ T6383]  ? show_regs_print_info+0x20/0x20
[  245.062032][ T6383]  ? load_image+0x400/0x400
[  245.089155][ T6383]  sysfs_create_dir_ns+0x26a/0x290
[  245.094386][ T6383]  ? sysfs_warn_dup+0xa0/0xa0
[  245.099090][ T6383]  ? do_raw_spin_unlock+0x11d/0x230
[  245.104320][ T6383]  kobject_add_internal+0x6e0/0xd90
[  245.109653][ T6383]  kobject_init_and_add+0x128/0x190
[  245.114904][ T6383]  ? lockdep_softirqs_off+0x430/0x430
[  245.120429][ T6383]  ? kobject_add+0x230/0x230
[  245.125054][ T6383]  ? __init_swait_queue_head+0xa5/0x150
[  245.130637][ T6383]  gfs2_sys_fs_add+0x24f/0x4b0
[  245.135430][ T6383]  ? gfs2_recover_set+0x240/0x240
[  245.140485][ T6383]  ? snprintf+0xe5/0x140
[  245.144749][ T6383]  ? __free_pages+0x95/0x1a0
[  245.149370][ T6383]  ? vscnprintf+0x80/0x80
[  245.153735][ T6383]  gfs2_fill_super+0x120f/0x1f00
[  245.158717][ T6383]  ? gfs2_reconfigure+0xd30/0xd30
[  245.163790][ T6383]  ? sb_set_blocksize+0xa5/0xe0
[  245.168678][ T6383]  get_tree_bdev+0x3f1/0x610
[  245.173304][ T6383]  ? gfs2_reconfigure+0xd30/0xd30
[  245.178461][ T6383]  gfs2_get_tree+0x4d/0x1e0
[  245.182994][ T6383]  vfs_get_tree+0x88/0x270
[  245.187452][ T6383]  do_new_mount+0x24a/0xa40
[  245.191993][ T6383]  __se_sys_mount+0x2e3/0x3d0
[  245.196708][ T6383]  ? __x64_sys_mount+0xc0/0xc0
[  245.201504][ T6383]  ? lockdep_hardirqs_on+0x94/0x140
[  245.206730][ T6383]  ? __x64_sys_mount+0x1c/0xc0
[  245.211615][ T6383]  do_syscall_64+0x4c/0xa0
[  245.216103][ T6383]  ? clear_bhb_loop+0x30/0x80
[  245.220817][ T6383]  ? clear_bhb_loop+0x30/0x80
[  245.225538][ T6383]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  245.231502][ T6383] RIP: 0033:0x7f33d8f45b8a
[  245.236014][ T6383] 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
[  245.255711][ T6383] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  245.264406][ T6383] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  245.272480][ T6383] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  245.280713][ T6383] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  245.288771][ T6383] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  245.296743][ T6383] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  245.304742][ T6383]  </TASK>
[  245.310136][ T6383] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  245.313358][ T6389] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  245.323494][ T6383] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  245.337959][ T6389] CPU: 1 PID: 6389 Comm: syz.3.364 Not tainted syzkaller #0
[  245.345297][ T6389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  245.355387][ T6389] Call Trace:
[  245.358691][ T6389]  <TASK>
[  245.361647][ T6389]  dump_stack_lvl+0x188/0x250
[  245.366444][ T6389]  ? show_regs_print_info+0x20/0x20
[  245.371668][ T6389]  ? load_image+0x400/0x400
[  245.376229][ T6389]  sysfs_create_dir_ns+0x26a/0x290
[  245.381460][ T6389]  ? sysfs_warn_dup+0xa0/0xa0
[  245.386339][ T6389]  ? do_raw_spin_unlock+0x11d/0x230
[  245.391563][ T6389]  kobject_add_internal+0x6e0/0xd90
[  245.396794][ T6389]  kobject_init_and_add+0x128/0x190
[  245.402038][ T6389]  ? lockdep_softirqs_off+0x430/0x430
[  245.407464][ T6389]  ? kobject_add+0x230/0x230
[  245.412100][ T6389]  ? __init_swait_queue_head+0xa5/0x150
[  245.417920][ T6389]  gfs2_sys_fs_add+0x24f/0x4b0
[  245.422730][ T6389]  ? gfs2_recover_set+0x240/0x240
[  245.427790][ T6389]  ? snprintf+0xe5/0x140
[  245.432069][ T6389]  ? __free_pages+0x95/0x1a0
[  245.436809][ T6389]  ? vscnprintf+0x80/0x80
[  245.441193][ T6389]  gfs2_fill_super+0x120f/0x1f00
[  245.446178][ T6389]  ? gfs2_reconfigure+0xd30/0xd30
[  245.451260][ T6389]  ? sb_set_blocksize+0xa5/0xe0
[  245.456237][ T6389]  get_tree_bdev+0x3f1/0x610
[  245.460865][ T6389]  ? gfs2_reconfigure+0xd30/0xd30
[  245.465966][ T6389]  gfs2_get_tree+0x4d/0x1e0
[  245.470610][ T6389]  vfs_get_tree+0x88/0x270
[  245.475060][ T6389]  do_new_mount+0x24a/0xa40
[  245.479643][ T6389]  __se_sys_mount+0x2e3/0x3d0
[  245.484354][ T6389]  ? __x64_sys_mount+0xc0/0xc0
[  245.489150][ T6389]  ? lockdep_hardirqs_on+0x94/0x140
[  245.494377][ T6389]  ? __x64_sys_mount+0x1c/0xc0
[  245.499169][ T6389]  do_syscall_64+0x4c/0xa0
[  245.503607][ T6389]  ? clear_bhb_loop+0x30/0x80
[  245.508409][ T6389]  ? clear_bhb_loop+0x30/0x80
[  245.513124][ T6389]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  245.519045][ T6389] RIP: 0033:0x7feb5a094b8a
[  245.523491][ T6389] 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
[  245.543135][ T6389] RSP: 002b:00007feb592f9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  245.551668][ T6389] RAX: ffffffffffffffda RBX: 00007feb592f9ee0 RCX: 00007feb5a094b8a
[  245.559668][ T6389] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb592f9ea0
[  245.567668][ T6389] RBP: 0000200000000400 R08: 00007feb592f9ee0 R09: 0000000000000000
[  245.575682][ T6389] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  245.583685][ T6389] R13: 00007feb592f9ea0 R14: 00000000000125bb R15: 00002000000004c0
[  245.591722][ T6389]  </TASK>
[  245.598947][ T6389] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  245.613178][ T6389] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  245.944268][ T6407] set_capacity_and_notify: 1 callbacks suppressed
[  245.944285][ T6407] loop4: detected capacity change from 0 to 32768
[  246.085019][ T6407] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  246.092827][ T6407] CPU: 1 PID: 6407 Comm: syz.4.366 Not tainted syzkaller #0
[  246.100154][ T6407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  246.110426][ T6407] Call Trace:
[  246.113728][ T6407]  <TASK>
[  246.116672][ T6407]  dump_stack_lvl+0x188/0x250
[  246.121383][ T6407]  ? show_regs_print_info+0x20/0x20
[  246.126606][ T6407]  ? load_image+0x400/0x400
[  246.131145][ T6407]  sysfs_create_dir_ns+0x26a/0x290
[  246.136395][ T6407]  ? sysfs_warn_dup+0xa0/0xa0
[  246.141103][ T6407]  ? do_raw_spin_unlock+0x11d/0x230
[  246.146324][ T6407]  kobject_add_internal+0x6e0/0xd90
[  246.151639][ T6407]  kobject_init_and_add+0x128/0x190
[  246.156858][ T6407]  ? lockdep_softirqs_off+0x430/0x430
[  246.162264][ T6407]  ? kobject_add+0x230/0x230
[  246.166893][ T6407]  ? __init_swait_queue_head+0xa5/0x150
[  246.172484][ T6407]  gfs2_sys_fs_add+0x24f/0x4b0
[  246.177395][ T6407]  ? gfs2_recover_set+0x240/0x240
[  246.182448][ T6407]  ? snprintf+0xe5/0x140
[  246.186714][ T6407]  ? __free_pages+0x95/0x1a0
[  246.191346][ T6407]  ? vscnprintf+0x80/0x80
[  246.195730][ T6407]  gfs2_fill_super+0x120f/0x1f00
[  246.200914][ T6407]  ? gfs2_reconfigure+0xd30/0xd30
[  246.206000][ T6407]  ? sb_set_blocksize+0xa5/0xe0
[  246.210882][ T6407]  get_tree_bdev+0x3f1/0x610
[  246.215508][ T6407]  ? gfs2_reconfigure+0xd30/0xd30
[  246.220705][ T6407]  gfs2_get_tree+0x4d/0x1e0
[  246.225605][ T6407]  vfs_get_tree+0x88/0x270
[  246.230065][ T6407]  do_new_mount+0x24a/0xa40
[  246.234709][ T6407]  __se_sys_mount+0x2e3/0x3d0
[  246.239446][ T6407]  ? __x64_sys_mount+0xc0/0xc0
[  246.244256][ T6407]  ? lockdep_hardirqs_on+0x94/0x140
[  246.249596][ T6407]  ? __x64_sys_mount+0x1c/0xc0
[  246.254393][ T6407]  do_syscall_64+0x4c/0xa0
[  246.258840][ T6407]  ? clear_bhb_loop+0x30/0x80
[  246.263549][ T6407]  ? clear_bhb_loop+0x30/0x80
[  246.268260][ T6407]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  246.274189][ T6407] RIP: 0033:0x7f20fe22cb8a
[  246.278825][ T6407] 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
[  246.298464][ T6407] RSP: 002b:00007f20fd491e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  246.306921][ T6407] RAX: ffffffffffffffda RBX: 00007f20fd491ee0 RCX: 00007f20fe22cb8a
[  246.315034][ T6407] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f20fd491ea0
[  246.323135][ T6407] RBP: 0000200000000400 R08: 00007f20fd491ee0 R09: 0000000000000000
[  246.331244][ T6407] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  246.339356][ T6407] R13: 00007f20fd491ea0 R14: 00000000000125bb R15: 00002000000004c0
[  246.347387][ T6407]  </TASK>
[  246.350621][ T6407] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  246.363800][ T6407] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  246.713097][ T6424] loop0: detected capacity change from 0 to 32768
[  246.732133][ T6424] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  246.739833][ T6424] CPU: 0 PID: 6424 Comm: syz.0.368 Not tainted syzkaller #0
[  246.747242][ T6424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  246.757320][ T6424] Call Trace:
[  246.760620][ T6424]  <TASK>
[  246.762967][ T6421] loop2: detected capacity change from 0 to 32768
[  246.763670][ T6424]  dump_stack_lvl+0x188/0x250
[  246.774884][ T6424]  ? show_regs_print_info+0x20/0x20
[  246.780128][ T6424]  ? load_image+0x400/0x400
[  246.784838][ T6424]  sysfs_create_dir_ns+0x26a/0x290
[  246.789981][ T6424]  ? sysfs_warn_dup+0xa0/0xa0
[  246.794690][ T6424]  ? do_raw_spin_unlock+0x11d/0x230
[  246.799920][ T6424]  kobject_add_internal+0x6e0/0xd90
[  246.805269][ T6424]  kobject_init_and_add+0x128/0x190
[  246.810599][ T6424]  ? lockdep_softirqs_off+0x430/0x430
[  246.816012][ T6424]  ? kobject_add+0x230/0x230
[  246.820633][ T6424]  ? __init_swait_queue_head+0xa5/0x150
[  246.826214][ T6424]  gfs2_sys_fs_add+0x24f/0x4b0
[  246.831218][ T6424]  ? gfs2_recover_set+0x240/0x240
[  246.836265][ T6424]  ? snprintf+0xe5/0x140
[  246.840612][ T6424]  ? __free_pages+0x95/0x1a0
[  246.845225][ T6424]  ? vscnprintf+0x80/0x80
[  246.849594][ T6424]  gfs2_fill_super+0x120f/0x1f00
[  246.854825][ T6424]  ? gfs2_reconfigure+0xd30/0xd30
[  246.859895][ T6424]  ? sb_set_blocksize+0xa5/0xe0
[  246.864917][ T6424]  get_tree_bdev+0x3f1/0x610
[  246.869535][ T6424]  ? gfs2_reconfigure+0xd30/0xd30
[  246.874682][ T6424]  gfs2_get_tree+0x4d/0x1e0
[  246.879229][ T6424]  vfs_get_tree+0x88/0x270
[  246.883686][ T6424]  do_new_mount+0x24a/0xa40
[  246.888251][ T6424]  __se_sys_mount+0x2e3/0x3d0
[  246.893132][ T6424]  ? __x64_sys_mount+0xc0/0xc0
[  246.898013][ T6424]  ? lockdep_hardirqs_on+0x94/0x140
[  246.903259][ T6424]  ? __x64_sys_mount+0x1c/0xc0
[  246.908139][ T6424]  do_syscall_64+0x4c/0xa0
[  246.912581][ T6424]  ? clear_bhb_loop+0x30/0x80
[  246.917277][ T6424]  ? clear_bhb_loop+0x30/0x80
[  246.921973][ T6424]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  246.928083][ T6424] RIP: 0033:0x7f4050558b8a
[  246.932553][ T6424] 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
[  246.952546][ T6424] RSP: 002b:00007f404f7bde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  246.961093][ T6424] RAX: ffffffffffffffda RBX: 00007f404f7bdee0 RCX: 00007f4050558b8a
[  246.969498][ T6424] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f404f7bdea0
[  246.977510][ T6424] RBP: 0000200000000400 R08: 00007f404f7bdee0 R09: 0000000000000000
[  246.985511][ T6424] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  246.993599][ T6424] R13: 00007f404f7bdea0 R14: 00000000000125bb R15: 00002000000004c0
[  247.001720][ T6424]  </TASK>
[  247.007785][ T6424] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  247.020992][ T6424] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  247.032639][ T6421] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  247.040318][ T6421] CPU: 0 PID: 6421 Comm: syz.2.369 Not tainted syzkaller #0
[  247.047636][ T6421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  247.057720][ T6421] Call Trace:
[  247.061023][ T6421]  <TASK>
[  247.063969][ T6421]  dump_stack_lvl+0x188/0x250
[  247.068672][ T6421]  ? show_regs_print_info+0x20/0x20
[  247.073985][ T6421]  ? load_image+0x400/0x400
[  247.078623][ T6421]  sysfs_create_dir_ns+0x26a/0x290
[  247.083763][ T6421]  ? sysfs_warn_dup+0xa0/0xa0
[  247.088468][ T6421]  ? do_raw_spin_unlock+0x11d/0x230
[  247.093789][ T6421]  kobject_add_internal+0x6e0/0xd90
[  247.099026][ T6421]  kobject_init_and_add+0x128/0x190
[  247.104246][ T6421]  ? lockdep_softirqs_off+0x430/0x430
[  247.109640][ T6421]  ? kobject_add+0x230/0x230
[  247.114345][ T6421]  ? __init_swait_queue_head+0xa5/0x150
[  247.120007][ T6421]  gfs2_sys_fs_add+0x24f/0x4b0
[  247.124806][ T6421]  ? gfs2_recover_set+0x240/0x240
[  247.129866][ T6421]  ? snprintf+0xe5/0x140
[  247.134219][ T6421]  ? __free_pages+0x95/0x1a0
[  247.138835][ T6421]  ? vscnprintf+0x80/0x80
[  247.143214][ T6421]  gfs2_fill_super+0x120f/0x1f00
[  247.148196][ T6421]  ? gfs2_reconfigure+0xd30/0xd30
[  247.153264][ T6421]  ? sb_set_blocksize+0xa5/0xe0
[  247.158140][ T6421]  get_tree_bdev+0x3f1/0x610
[  247.162768][ T6421]  ? gfs2_reconfigure+0xd30/0xd30
[  247.167818][ T6421]  gfs2_get_tree+0x4d/0x1e0
[  247.172366][ T6421]  vfs_get_tree+0x88/0x270
[  247.176856][ T6421]  do_new_mount+0x24a/0xa40
[  247.181401][ T6421]  __se_sys_mount+0x2e3/0x3d0
[  247.186117][ T6421]  ? __x64_sys_mount+0xc0/0xc0
[  247.191027][ T6421]  ? lockdep_hardirqs_on+0x94/0x140
[  247.196375][ T6421]  ? __x64_sys_mount+0x1c/0xc0
[  247.201259][ T6421]  do_syscall_64+0x4c/0xa0
[  247.205703][ T6421]  ? clear_bhb_loop+0x30/0x80
[  247.210407][ T6421]  ? clear_bhb_loop+0x30/0x80
[  247.215218][ T6421]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  247.221407][ T6421] RIP: 0033:0x7f33d8f45b8a
[  247.225860][ T6421] 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
[  247.245581][ T6421] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  247.254028][ T6421] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  247.262028][ T6421] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  247.270027][ T6421] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  247.278114][ T6421] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  247.286113][ T6421] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  247.294135][ T6421]  </TASK>
[  247.297328][ T6421] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  247.310610][ T6421] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  248.159372][ T6438] loop2: detected capacity change from 0 to 32768
[  248.272414][ T6438] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  248.280134][ T6438] CPU: 1 PID: 6438 Comm: syz.2.375 Not tainted syzkaller #0
[  248.287445][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  248.297526][ T6438] Call Trace:
[  248.300837][ T6438]  <TASK>
[  248.303795][ T6438]  dump_stack_lvl+0x188/0x250
[  248.308508][ T6438]  ? show_regs_print_info+0x20/0x20
[  248.313916][ T6438]  ? load_image+0x400/0x400
[  248.318568][ T6438]  sysfs_create_dir_ns+0x26a/0x290
[  248.323797][ T6438]  ? sysfs_warn_dup+0xa0/0xa0
[  248.328692][ T6438]  ? do_raw_spin_unlock+0x11d/0x230
[  248.334010][ T6438]  kobject_add_internal+0x6e0/0xd90
[  248.339373][ T6438]  kobject_init_and_add+0x128/0x190
[  248.344778][ T6438]  ? lockdep_softirqs_off+0x430/0x430
[  248.350197][ T6438]  ? kobject_add+0x230/0x230
[  248.354949][ T6438]  ? __init_swait_queue_head+0xa5/0x150
[  248.360528][ T6438]  gfs2_sys_fs_add+0x24f/0x4b0
[  248.365325][ T6438]  ? gfs2_recover_set+0x240/0x240
[  248.370382][ T6438]  ? snprintf+0xe5/0x140
[  248.374739][ T6438]  ? __free_pages+0x95/0x1a0
[  248.379365][ T6438]  ? vscnprintf+0x80/0x80
[  248.383754][ T6438]  gfs2_fill_super+0x120f/0x1f00
[  248.388739][ T6438]  ? gfs2_reconfigure+0xd30/0xd30
[  248.393809][ T6438]  ? sb_set_blocksize+0xa5/0xe0
[  248.398680][ T6438]  get_tree_bdev+0x3f1/0x610
[  248.403307][ T6438]  ? gfs2_reconfigure+0xd30/0xd30
[  248.408361][ T6438]  gfs2_get_tree+0x4d/0x1e0
[  248.412892][ T6438]  vfs_get_tree+0x88/0x270
[  248.417335][ T6438]  do_new_mount+0x24a/0xa40
[  248.421883][ T6438]  __se_sys_mount+0x2e3/0x3d0
[  248.426692][ T6438]  ? __x64_sys_mount+0xc0/0xc0
[  248.431583][ T6438]  ? lockdep_hardirqs_on+0x94/0x140
[  248.436807][ T6438]  ? __x64_sys_mount+0x1c/0xc0
[  248.441600][ T6438]  do_syscall_64+0x4c/0xa0
[  248.446045][ T6438]  ? clear_bhb_loop+0x30/0x80
[  248.450806][ T6438]  ? clear_bhb_loop+0x30/0x80
[  248.455609][ T6438]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  248.461614][ T6438] RIP: 0033:0x7f33d8f45b8a
[  248.466062][ T6438] 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
[  248.485966][ T6438] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  248.494526][ T6438] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  248.502536][ T6438] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  248.510537][ T6438] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  248.518559][ T6438] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  248.526736][ T6438] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  248.534748][ T6438]  </TASK>
[  248.538924][ T6438] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  248.552397][ T6438] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/02/28 14:50:53 executed programs: 370
[  249.112469][ T6446] loop2: detected capacity change from 0 to 32768
[  249.228239][ T6446] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  249.235774][ T6446] CPU: 0 PID: 6446 Comm: syz.2.376 Not tainted syzkaller #0
[  249.243090][ T6446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  249.253176][ T6446] Call Trace:
[  249.256586][ T6446]  <TASK>
[  249.259631][ T6446]  dump_stack_lvl+0x188/0x250
[  249.264353][ T6446]  ? show_regs_print_info+0x20/0x20
[  249.269688][ T6446]  ? load_image+0x400/0x400
[  249.274233][ T6446]  sysfs_create_dir_ns+0x26a/0x290
[  249.279376][ T6446]  ? sysfs_warn_dup+0xa0/0xa0
[  249.284079][ T6446]  ? do_raw_spin_unlock+0x11d/0x230
[  249.289305][ T6446]  kobject_add_internal+0x6e0/0xd90
[  249.294625][ T6446]  kobject_init_and_add+0x128/0x190
[  249.299856][ T6446]  ? lockdep_softirqs_off+0x430/0x430
[  249.305267][ T6446]  ? kobject_add+0x230/0x230
[  249.309892][ T6446]  ? __init_swait_queue_head+0xa5/0x150
[  249.315558][ T6446]  gfs2_sys_fs_add+0x24f/0x4b0
[  249.320353][ T6446]  ? gfs2_recover_set+0x240/0x240
[  249.325410][ T6446]  ? snprintf+0xe5/0x140
[  249.329684][ T6446]  ? __free_pages+0x95/0x1a0
[  249.334312][ T6446]  ? vscnprintf+0x80/0x80
[  249.338944][ T6446]  gfs2_fill_super+0x120f/0x1f00
[  249.343919][ T6446]  ? gfs2_reconfigure+0xd30/0xd30
[  249.348984][ T6446]  ? sb_set_blocksize+0xa5/0xe0
[  249.353966][ T6446]  get_tree_bdev+0x3f1/0x610
[  249.358578][ T6446]  ? gfs2_reconfigure+0xd30/0xd30
[  249.363630][ T6446]  gfs2_get_tree+0x4d/0x1e0
[  249.368259][ T6446]  vfs_get_tree+0x88/0x270
[  249.372970][ T6446]  do_new_mount+0x24a/0xa40
[  249.377510][ T6446]  __se_sys_mount+0x2e3/0x3d0
[  249.382226][ T6446]  ? __x64_sys_mount+0xc0/0xc0
[  249.387011][ T6446]  ? lockdep_hardirqs_on+0x94/0x140
[  249.392318][ T6446]  ? __x64_sys_mount+0x1c/0xc0
[  249.397110][ T6446]  do_syscall_64+0x4c/0xa0
[  249.401547][ T6446]  ? clear_bhb_loop+0x30/0x80
[  249.406245][ T6446]  ? clear_bhb_loop+0x30/0x80
[  249.411039][ T6446]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  249.416955][ T6446] RIP: 0033:0x7f33d8f45b8a
[  249.421390][ T6446] 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
[  249.441421][ T6446] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  249.450217][ T6446] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  249.458218][ T6446] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  249.466209][ T6446] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  249.474206][ T6446] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  249.482223][ T6446] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  249.490357][ T6446]  </TASK>
[  249.494764][ T6446] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  249.508423][ T6446] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  249.637607][ T6452] loop5: detected capacity change from 0 to 32768
[  249.762771][ T6452] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  249.770407][ T6452] CPU: 1 PID: 6452 Comm: syz.5.377 Not tainted syzkaller #0
[  249.777781][ T6452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  249.787935][ T6452] Call Trace:
[  249.791231][ T6452]  <TASK>
[  249.794183][ T6452]  dump_stack_lvl+0x188/0x250
[  249.798919][ T6452]  ? show_regs_print_info+0x20/0x20
[  249.804186][ T6452]  ? load_image+0x400/0x400
[  249.808738][ T6452]  sysfs_create_dir_ns+0x26a/0x290
[  249.813886][ T6452]  ? sysfs_warn_dup+0xa0/0xa0
[  249.818590][ T6452]  ? do_raw_spin_unlock+0x11d/0x230
[  249.823936][ T6452]  kobject_add_internal+0x6e0/0xd90
[  249.829179][ T6452]  kobject_init_and_add+0x128/0x190
[  249.834406][ T6452]  ? lockdep_softirqs_off+0x430/0x430
[  249.839819][ T6452]  ? kobject_add+0x230/0x230
[  249.844553][ T6452]  ? __init_swait_queue_head+0xa5/0x150
[  249.850143][ T6452]  gfs2_sys_fs_add+0x24f/0x4b0
[  249.855165][ T6452]  ? gfs2_recover_set+0x240/0x240
[  249.860218][ T6452]  ? snprintf+0xe5/0x140
[  249.864484][ T6452]  ? __free_pages+0x95/0x1a0
[  249.869105][ T6452]  ? vscnprintf+0x80/0x80
[  249.873470][ T6452]  gfs2_fill_super+0x120f/0x1f00
[  249.878453][ T6452]  ? gfs2_reconfigure+0xd30/0xd30
[  249.883621][ T6452]  ? sb_set_blocksize+0xa5/0xe0
[  249.888597][ T6452]  get_tree_bdev+0x3f1/0x610
[  249.893224][ T6452]  ? gfs2_reconfigure+0xd30/0xd30
[  249.898372][ T6452]  gfs2_get_tree+0x4d/0x1e0
[  249.902906][ T6452]  vfs_get_tree+0x88/0x270
[  249.907347][ T6452]  do_new_mount+0x24a/0xa40
[  249.911885][ T6452]  __se_sys_mount+0x2e3/0x3d0
[  249.916588][ T6452]  ? __x64_sys_mount+0xc0/0xc0
[  249.921388][ T6452]  ? lockdep_hardirqs_on+0x94/0x140
[  249.926612][ T6452]  ? __x64_sys_mount+0x1c/0xc0
[  249.931401][ T6452]  do_syscall_64+0x4c/0xa0
[  249.935836][ T6452]  ? clear_bhb_loop+0x30/0x80
[  249.940618][ T6452]  ? clear_bhb_loop+0x30/0x80
[  249.945312][ T6452]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  249.951342][ T6452] RIP: 0033:0x7fdc19fe7b8a
[  249.955778][ T6452] 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
[  249.975416][ T6452] RSP: 002b:00007fdc1924ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  249.983888][ T6452] RAX: ffffffffffffffda RBX: 00007fdc1924cee0 RCX: 00007fdc19fe7b8a
[  249.991884][ T6452] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdc1924cea0
[  249.999885][ T6452] RBP: 0000200000000400 R08: 00007fdc1924cee0 R09: 0000000000000000
[  250.007939][ T6452] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  250.016014][ T6452] R13: 00007fdc1924cea0 R14: 00000000000125bb R15: 00002000000004c0
[  250.024032][ T6452]  </TASK>
[  250.028422][ T6452] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  250.041689][ T6452] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  250.095492][ T6429] loop0: detected capacity change from 0 to 32768
[  250.457043][ T6457] loop2: detected capacity change from 0 to 32768
[  250.786777][ T6466] loop3: detected capacity change from 0 to 32768
[  250.898621][ T6457] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  250.906274][ T6457] CPU: 0 PID: 6457 Comm: syz.2.379 Not tainted syzkaller #0
[  250.913668][ T6457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  250.923927][ T6457] Call Trace:
[  250.927223][ T6457]  <TASK>
[  250.930172][ T6457]  dump_stack_lvl+0x188/0x250
[  250.934920][ T6457]  ? show_regs_print_info+0x20/0x20
[  250.940148][ T6457]  ? load_image+0x400/0x400
[  250.943525][ T6466] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  250.944691][ T6457]  sysfs_create_dir_ns+0x26a/0x290
[  250.957247][ T6457]  ? sysfs_warn_dup+0xa0/0xa0
[  250.961931][ T6457]  ? do_raw_spin_unlock+0x11d/0x230
[  250.967170][ T6457]  kobject_add_internal+0x6e0/0xd90
[  250.972381][ T6457]  kobject_init_and_add+0x128/0x190
[  250.977581][ T6457]  ? lockdep_softirqs_off+0x430/0x430
[  250.983051][ T6457]  ? kobject_add+0x230/0x230
[  250.987654][ T6457]  ? __init_swait_queue_head+0xa5/0x150
[  250.993224][ T6457]  gfs2_sys_fs_add+0x24f/0x4b0
[  250.997997][ T6457]  ? gfs2_recover_set+0x240/0x240
[  251.003028][ T6457]  ? snprintf+0xe5/0x140
[  251.007280][ T6457]  ? __free_pages+0x95/0x1a0
[  251.011876][ T6457]  ? vscnprintf+0x80/0x80
[  251.016223][ T6457]  gfs2_fill_super+0x120f/0x1f00
[  251.021177][ T6457]  ? gfs2_reconfigure+0xd30/0xd30
[  251.026229][ T6457]  ? sb_set_blocksize+0xa5/0xe0
[  251.031087][ T6457]  get_tree_bdev+0x3f1/0x610
[  251.035688][ T6457]  ? gfs2_reconfigure+0xd30/0xd30
[  251.040770][ T6457]  gfs2_get_tree+0x4d/0x1e0
[  251.045288][ T6457]  vfs_get_tree+0x88/0x270
[  251.049712][ T6457]  do_new_mount+0x24a/0xa40
[  251.054236][ T6457]  __se_sys_mount+0x2e3/0x3d0
[  251.058918][ T6457]  ? __x64_sys_mount+0xc0/0xc0
[  251.063701][ T6457]  ? lockdep_hardirqs_on+0x94/0x140
[  251.068910][ T6457]  ? __x64_sys_mount+0x1c/0xc0
[  251.073697][ T6457]  do_syscall_64+0x4c/0xa0
[  251.078141][ T6457]  ? clear_bhb_loop+0x30/0x80
[  251.082833][ T6457]  ? clear_bhb_loop+0x30/0x80
[  251.087530][ T6457]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  251.093434][ T6457] RIP: 0033:0x7f33d8f45b8a
[  251.097857][ T6457] 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
[  251.117553][ T6457] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  251.125970][ T6457] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  251.134034][ T6457] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  251.142010][ T6457] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  251.150086][ T6457] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  251.158407][ T6457] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  251.166395][ T6457]  </TASK>
[  251.169428][ T6466] CPU: 1 PID: 6466 Comm: syz.3.382 Not tainted syzkaller #0
[  251.170404][ T6457] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  251.176747][ T6466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  251.176761][ T6466] Call Trace:
[  251.176769][ T6466]  <TASK>
[  251.176777][ T6466]  dump_stack_lvl+0x188/0x250
[  251.176808][ T6466]  ? show_regs_print_info+0x20/0x20
[  251.190123][ T6457] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  251.200386][ T6466]  ? load_image+0x400/0x400
[  251.200425][ T6466]  sysfs_create_dir_ns+0x26a/0x290
[  251.200448][ T6466]  ? sysfs_warn_dup+0xa0/0xa0
[  251.200469][ T6466]  ? do_raw_spin_unlock+0x11d/0x230
[  251.200494][ T6466]  kobject_add_internal+0x6e0/0xd90
[  251.200524][ T6466]  kobject_init_and_add+0x128/0x190
[  251.200545][ T6466]  ? lockdep_softirqs_off+0x430/0x430
[  251.200574][ T6466]  ? kobject_add+0x230/0x230
[  251.200600][ T6466]  ? __init_swait_queue_head+0xa5/0x150
[  251.200628][ T6466]  gfs2_sys_fs_add+0x24f/0x4b0
[  251.200652][ T6466]  ? gfs2_recover_set+0x240/0x240
[  251.200673][ T6466]  ? snprintf+0xe5/0x140
[  251.200691][ T6466]  ? __free_pages+0x95/0x1a0
[  251.200716][ T6466]  ? vscnprintf+0x80/0x80
[  251.200746][ T6466]  gfs2_fill_super+0x120f/0x1f00
[  251.200783][ T6466]  ? gfs2_reconfigure+0xd30/0xd30
[  251.200824][ T6466]  ? sb_set_blocksize+0xa5/0xe0
[  251.200846][ T6466]  get_tree_bdev+0x3f1/0x610
[  251.200879][ T6466]  ? gfs2_reconfigure+0xd30/0xd30
[  251.200902][ T6466]  gfs2_get_tree+0x4d/0x1e0
[  251.200926][ T6466]  vfs_get_tree+0x88/0x270
[  251.200949][ T6466]  do_new_mount+0x24a/0xa40
[  251.200978][ T6466]  __se_sys_mount+0x2e3/0x3d0
[  251.201006][ T6466]  ? __x64_sys_mount+0xc0/0xc0
[  251.201030][ T6466]  ? lockdep_hardirqs_on+0x94/0x140
[  251.201050][ T6466]  ? __x64_sys_mount+0x1c/0xc0
[  251.201071][ T6466]  do_syscall_64+0x4c/0xa0
[  251.201090][ T6466]  ? clear_bhb_loop+0x30/0x80
[  251.201108][ T6466]  ? clear_bhb_loop+0x30/0x80
[  251.201128][ T6466]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  251.201148][ T6466] RIP: 0033:0x7feb5a094b8a
[  251.201168][ T6466] 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
[  251.201185][ T6466] RSP: 002b:00007feb592f9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  251.403253][ T6466] RAX: ffffffffffffffda RBX: 00007feb592f9ee0 RCX: 00007feb5a094b8a
[  251.411266][ T6466] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb592f9ea0
[  251.419280][ T6466] RBP: 0000200000000400 R08: 00007feb592f9ee0 R09: 0000000000000000
[  251.427287][ T6466] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  251.435287][ T6466] R13: 00007feb592f9ea0 R14: 00000000000125bb R15: 00002000000004c0
[  251.443311][ T6466]  </TASK>
[  251.448714][ T6466] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  251.462707][ T6466] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  252.082247][ T6472] loop0: detected capacity change from 0 to 32768
[  252.118690][ T6472] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  252.126351][ T6472] CPU: 0 PID: 6472 Comm: syz.0.383 Not tainted syzkaller #0
[  252.133676][ T6472] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  252.143765][ T6472] Call Trace:
[  252.147082][ T6472]  <TASK>
[  252.150034][ T6472]  dump_stack_lvl+0x188/0x250
[  252.154750][ T6472]  ? show_regs_print_info+0x20/0x20
[  252.159978][ T6472]  ? load_image+0x400/0x400
[  252.164698][ T6472]  sysfs_create_dir_ns+0x26a/0x290
[  252.170032][ T6472]  ? sysfs_warn_dup+0xa0/0xa0
[  252.174821][ T6472]  ? do_raw_spin_unlock+0x11d/0x230
[  252.180166][ T6472]  kobject_add_internal+0x6e0/0xd90
[  252.185407][ T6472]  kobject_init_and_add+0x128/0x190
[  252.190635][ T6472]  ? lockdep_softirqs_off+0x430/0x430
[  252.196046][ T6472]  ? kobject_add+0x230/0x230
[  252.200675][ T6472]  ? __init_swait_queue_head+0xa5/0x150
[  252.206262][ T6472]  gfs2_sys_fs_add+0x24f/0x4b0
[  252.211063][ T6472]  ? gfs2_recover_set+0x240/0x240
[  252.216123][ T6472]  ? snprintf+0xe5/0x140
[  252.220392][ T6472]  ? __free_pages+0x95/0x1a0
[  252.225008][ T6472]  ? vscnprintf+0x80/0x80
[  252.229359][ T6472]  gfs2_fill_super+0x120f/0x1f00
[  252.234408][ T6472]  ? gfs2_reconfigure+0xd30/0xd30
[  252.239457][ T6472]  ? sb_set_blocksize+0xa5/0xe0
[  252.244324][ T6472]  get_tree_bdev+0x3f1/0x610
[  252.248926][ T6472]  ? gfs2_reconfigure+0xd30/0xd30
[  252.253957][ T6472]  gfs2_get_tree+0x4d/0x1e0
[  252.258474][ T6472]  vfs_get_tree+0x88/0x270
[  252.262891][ T6472]  do_new_mount+0x24a/0xa40
[  252.267405][ T6472]  __se_sys_mount+0x2e3/0x3d0
[  252.272087][ T6472]  ? __x64_sys_mount+0xc0/0xc0
[  252.277115][ T6472]  ? lockdep_hardirqs_on+0x94/0x140
[  252.282315][ T6472]  ? __x64_sys_mount+0x1c/0xc0
[  252.287088][ T6472]  do_syscall_64+0x4c/0xa0
[  252.291507][ T6472]  ? clear_bhb_loop+0x30/0x80
[  252.296189][ T6472]  ? clear_bhb_loop+0x30/0x80
[  252.300868][ T6472]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  252.306763][ T6472] RIP: 0033:0x7f4050558b8a
[  252.311182][ T6472] 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
[  252.331050][ T6472] RSP: 002b:00007f404f7bde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  252.339472][ T6472] RAX: ffffffffffffffda RBX: 00007f404f7bdee0 RCX: 00007f4050558b8a
[  252.347443][ T6472] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f404f7bdea0
[  252.355419][ T6472] RBP: 0000200000000400 R08: 00007f404f7bdee0 R09: 0000000000000000
[  252.363393][ T6472] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  252.371394][ T6472] R13: 00007f404f7bdea0 R14: 00000000000125bb R15: 00002000000004c0
[  252.379431][ T6472]  </TASK>
[  252.383695][ T6472] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  252.396917][ T6472] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  252.793320][ T6461] loop5: detected capacity change from 0 to 32768
[  252.926153][ T6484] loop3: detected capacity change from 0 to 32768
[  253.035058][ T6461] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  253.042506][ T6461] CPU: 1 PID: 6461 Comm: syz.5.380 Not tainted syzkaller #0
[  253.049822][ T6461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  253.059903][ T6461] Call Trace:
[  253.063381][ T6461]  <TASK>
[  253.066332][ T6461]  dump_stack_lvl+0x188/0x250
[  253.071047][ T6461]  ? show_regs_print_info+0x20/0x20
[  253.076376][ T6461]  ? load_image+0x400/0x400
[  253.080918][ T6461]  sysfs_create_dir_ns+0x26a/0x290
[  253.086058][ T6461]  ? sysfs_warn_dup+0xa0/0xa0
[  253.090765][ T6461]  ? do_raw_spin_unlock+0x11d/0x230
[  253.095988][ T6461]  kobject_add_internal+0x6e0/0xd90
[  253.101334][ T6461]  kobject_init_and_add+0x128/0x190
[  253.106559][ T6461]  ? lockdep_softirqs_off+0x430/0x430
[  253.111961][ T6461]  ? kobject_add+0x230/0x230
[  253.116583][ T6461]  ? __init_swait_queue_head+0xa5/0x150
[  253.122182][ T6461]  gfs2_sys_fs_add+0x24f/0x4b0
[  253.127138][ T6461]  ? gfs2_recover_set+0x240/0x240
[  253.132189][ T6461]  ? snprintf+0xe5/0x140
[  253.136558][ T6461]  ? __free_pages+0x95/0x1a0
[  253.141177][ T6461]  ? vscnprintf+0x80/0x80
[  253.142422][ T6489] loop0: detected capacity change from 0 to 32768
[  253.145555][ T6461]  gfs2_fill_super+0x120f/0x1f00
[  253.145601][ T6461]  ? gfs2_reconfigure+0xd30/0xd30
[  253.162054][ T6461]  ? sb_set_blocksize+0xa5/0xe0
[  253.166942][ T6461]  get_tree_bdev+0x3f1/0x610
[  253.171645][ T6461]  ? gfs2_reconfigure+0xd30/0xd30
[  253.176786][ T6461]  gfs2_get_tree+0x4d/0x1e0
[  253.181319][ T6461]  vfs_get_tree+0x88/0x270
[  253.185755][ T6461]  do_new_mount+0x24a/0xa40
[  253.190374][ T6461]  __se_sys_mount+0x2e3/0x3d0
[  253.195082][ T6461]  ? __x64_sys_mount+0xc0/0xc0
[  253.199868][ T6461]  ? lockdep_hardirqs_on+0x94/0x140
[  253.205086][ T6461]  ? __x64_sys_mount+0x1c/0xc0
[  253.209870][ T6461]  do_syscall_64+0x4c/0xa0
[  253.214392][ T6461]  ? clear_bhb_loop+0x30/0x80
[  253.219180][ T6461]  ? clear_bhb_loop+0x30/0x80
[  253.223967][ T6461]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  253.229885][ T6461] RIP: 0033:0x7fdc19fe7b8a
[  253.234338][ T6461] 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
[  253.253971][ T6461] RSP: 002b:00007fdc1922be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  253.262418][ T6461] RAX: ffffffffffffffda RBX: 00007fdc1922bee0 RCX: 00007fdc19fe7b8a
[  253.270528][ T6461] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdc1922bea0
[  253.278539][ T6461] RBP: 0000200000000400 R08: 00007fdc1922bee0 R09: 0000000000000000
[  253.286548][ T6461] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  253.294650][ T6461] R13: 00007fdc1922bea0 R14: 00000000000125bb R15: 00002000000004c0
[  253.302660][ T6461]  </TASK>
[  253.307376][ T6484] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  253.315432][ T6484] CPU: 1 PID: 6484 Comm: syz.3.387 Not tainted syzkaller #0
[  253.322745][ T6484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  253.332831][ T6484] Call Trace:
[  253.336142][ T6484]  <TASK>
[  253.339090][ T6484]  dump_stack_lvl+0x188/0x250
[  253.343892][ T6484]  ? show_regs_print_info+0x20/0x20
[  253.349124][ T6484]  ? load_image+0x400/0x400
[  253.353669][ T6484]  sysfs_create_dir_ns+0x26a/0x290
[  253.358803][ T6484]  ? sysfs_warn_dup+0xa0/0xa0
[  253.363605][ T6484]  ? do_raw_spin_unlock+0x11d/0x230
[  253.367515][ T6461] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  253.368937][ T6484]  kobject_add_internal+0x6e0/0xd90
[  253.368972][ T6484]  kobject_init_and_add+0x128/0x190
[  253.392448][ T6484]  ? lockdep_softirqs_off+0x430/0x430
[  253.397918][ T6484]  ? kobject_add+0x230/0x230
[  253.402553][ T6484]  ? __init_swait_queue_head+0xa5/0x150
[  253.408321][ T6484]  gfs2_sys_fs_add+0x24f/0x4b0
[  253.413109][ T6484]  ? gfs2_recover_set+0x240/0x240
[  253.418159][ T6484]  ? snprintf+0xe5/0x140
[  253.422519][ T6484]  ? __free_pages+0x95/0x1a0
[  253.427135][ T6484]  ? vscnprintf+0x80/0x80
[  253.431807][ T6484]  gfs2_fill_super+0x120f/0x1f00
[  253.436804][ T6484]  ? gfs2_reconfigure+0xd30/0xd30
[  253.441884][ T6484]  ? sb_set_blocksize+0xa5/0xe0
[  253.446759][ T6484]  get_tree_bdev+0x3f1/0x610
[  253.451379][ T6484]  ? gfs2_reconfigure+0xd30/0xd30
[  253.451982][ T6461] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  253.456424][ T6484]  gfs2_get_tree+0x4d/0x1e0
[  253.456453][ T6484]  vfs_get_tree+0x88/0x270
[  253.456477][ T6484]  do_new_mount+0x24a/0xa40
[  253.456504][ T6484]  __se_sys_mount+0x2e3/0x3d0
[  253.456530][ T6484]  ? __x64_sys_mount+0xc0/0xc0
[  253.456554][ T6484]  ? lockdep_hardirqs_on+0x94/0x140
[  253.456574][ T6484]  ? __x64_sys_mount+0x1c/0xc0
[  253.456598][ T6484]  do_syscall_64+0x4c/0xa0
[  253.456615][ T6484]  ? clear_bhb_loop+0x30/0x80
[  253.456634][ T6484]  ? clear_bhb_loop+0x30/0x80
[  253.456653][ T6484]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  253.456672][ T6484] RIP: 0033:0x7feb5a094b8a
[  253.456691][ T6484] 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
[  253.456707][ T6484] RSP: 002b:00007feb592f9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  253.548638][ T6484] RAX: ffffffffffffffda RBX: 00007feb592f9ee0 RCX: 00007feb5a094b8a
[  253.556645][ T6484] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb592f9ea0
[  253.564648][ T6484] RBP: 0000200000000400 R08: 00007feb592f9ee0 R09: 0000000000000000
[  253.572657][ T6484] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  253.580671][ T6484] R13: 00007feb592f9ea0 R14: 00000000000125bb R15: 00002000000004c0
[  253.588776][ T6484]  </TASK>
[  253.591938][ T6484] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  253.605220][ T6484] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  253.645387][ T6489] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  253.654026][ T6489] CPU: 0 PID: 6489 Comm: syz.0.388 Not tainted syzkaller #0
[  253.661450][ T6489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  253.671714][ T6489] Call Trace:
[  253.675021][ T6489]  <TASK>
[  253.677978][ T6489]  dump_stack_lvl+0x188/0x250
[  253.682695][ T6489]  ? show_regs_print_info+0x20/0x20
[  253.687939][ T6489]  ? load_image+0x400/0x400
[  253.692506][ T6489]  sysfs_create_dir_ns+0x26a/0x290
[  253.697650][ T6489]  ? sysfs_warn_dup+0xa0/0xa0
[  253.702455][ T6489]  ? do_raw_spin_unlock+0x11d/0x230
[  253.707979][ T6489]  kobject_add_internal+0x6e0/0xd90
[  253.713210][ T6489]  kobject_init_and_add+0x128/0x190
[  253.718438][ T6489]  ? lockdep_softirqs_off+0x430/0x430
[  253.718609][ T6482] loop2: detected capacity change from 0 to 32768
[  253.723905][ T6489]  ? kobject_add+0x230/0x230
[  253.735091][ T6489]  ? __init_swait_queue_head+0xa5/0x150
[  253.740767][ T6489]  gfs2_sys_fs_add+0x24f/0x4b0
[  253.745649][ T6489]  ? gfs2_recover_set+0x240/0x240
[  253.750898][ T6489]  ? snprintf+0xe5/0x140
[  253.755193][ T6489]  ? __free_pages+0x95/0x1a0
[  253.760335][ T6489]  ? vscnprintf+0x80/0x80
[  253.764698][ T6489]  gfs2_fill_super+0x120f/0x1f00
[  253.769678][ T6489]  ? gfs2_reconfigure+0xd30/0xd30
[  253.774747][ T6489]  ? sb_set_blocksize+0xa5/0xe0
[  253.779625][ T6489]  get_tree_bdev+0x3f1/0x610
[  253.784262][ T6489]  ? gfs2_reconfigure+0xd30/0xd30
[  253.789325][ T6489]  gfs2_get_tree+0x4d/0x1e0
[  253.793859][ T6489]  vfs_get_tree+0x88/0x270
[  253.798474][ T6489]  do_new_mount+0x24a/0xa40
[  253.803100][ T6489]  __se_sys_mount+0x2e3/0x3d0
[  253.807809][ T6489]  ? __x64_sys_mount+0xc0/0xc0
[  253.812633][ T6489]  ? lockdep_hardirqs_on+0x94/0x140
[  253.817956][ T6489]  ? __x64_sys_mount+0x1c/0xc0
[  253.822755][ T6489]  do_syscall_64+0x4c/0xa0
[  253.827251][ T6489]  ? clear_bhb_loop+0x30/0x80
[  253.831947][ T6489]  ? clear_bhb_loop+0x30/0x80
[  253.836766][ T6489]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  253.842681][ T6489] RIP: 0033:0x7f4050558b8a
[  253.847127][ T6489] 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
[  253.866924][ T6489] RSP: 002b:00007f404f7bde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  253.875366][ T6489] RAX: ffffffffffffffda RBX: 00007f404f7bdee0 RCX: 00007f4050558b8a
[  253.883407][ T6489] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f404f7bdea0
[  253.891419][ T6489] RBP: 0000200000000400 R08: 00007f404f7bdee0 R09: 0000000000000000
[  253.899437][ T6489] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  253.907541][ T6489] R13: 00007f404f7bdea0 R14: 00000000000125bb R15: 00002000000004c0
[  253.915677][ T6489]  </TASK>
[  253.920632][ T6489] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  253.933928][ T6489] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/02/28 14:50:58 executed programs: 383
[  254.027232][ T6495] loop3: detected capacity change from 0 to 32768
[  254.050189][ T6482] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  254.059727][ T6482] CPU: 1 PID: 6482 Comm: syz.2.386 Not tainted syzkaller #0
[  254.067064][ T6482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  254.077295][ T6482] Call Trace:
[  254.080598][ T6482]  <TASK>
[  254.083653][ T6482]  dump_stack_lvl+0x188/0x250
[  254.088475][ T6482]  ? show_regs_print_info+0x20/0x20
[  254.093701][ T6482]  ? load_image+0x400/0x400
[  254.098262][ T6482]  sysfs_create_dir_ns+0x26a/0x290
[  254.103410][ T6482]  ? sysfs_warn_dup+0xa0/0xa0
[  254.108266][ T6482]  ? do_raw_spin_unlock+0x11d/0x230
[  254.113602][ T6482]  kobject_add_internal+0x6e0/0xd90
[  254.118831][ T6482]  kobject_init_and_add+0x128/0x190
[  254.124051][ T6482]  ? lockdep_softirqs_off+0x430/0x430
[  254.129477][ T6482]  ? kobject_add+0x230/0x230
[  254.134189][ T6482]  ? __init_swait_queue_head+0xa5/0x150
[  254.139773][ T6482]  gfs2_sys_fs_add+0x24f/0x4b0
[  254.144571][ T6482]  ? gfs2_recover_set+0x240/0x240
[  254.149629][ T6482]  ? snprintf+0xe5/0x140
[  254.153909][ T6482]  ? __free_pages+0x95/0x1a0
[  254.158523][ T6482]  ? vscnprintf+0x80/0x80
[  254.162904][ T6482]  gfs2_fill_super+0x120f/0x1f00
[  254.168242][ T6482]  ? gfs2_reconfigure+0xd30/0xd30
[  254.173318][ T6482]  ? sb_set_blocksize+0xa5/0xe0
[  254.178296][ T6482]  get_tree_bdev+0x3f1/0x610
[  254.182919][ T6482]  ? gfs2_reconfigure+0xd30/0xd30
[  254.187974][ T6482]  gfs2_get_tree+0x4d/0x1e0
[  254.192521][ T6482]  vfs_get_tree+0x88/0x270
[  254.196976][ T6482]  do_new_mount+0x24a/0xa40
[  254.201523][ T6482]  __se_sys_mount+0x2e3/0x3d0
[  254.206243][ T6482]  ? __x64_sys_mount+0xc0/0xc0
[  254.211042][ T6482]  ? lockdep_hardirqs_on+0x94/0x140
[  254.216278][ T6482]  ? __x64_sys_mount+0x1c/0xc0
[  254.221072][ T6482]  do_syscall_64+0x4c/0xa0
[  254.225518][ T6482]  ? clear_bhb_loop+0x30/0x80
[  254.230216][ T6482]  ? clear_bhb_loop+0x30/0x80
[  254.234940][ T6482]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  254.240913][ T6482] RIP: 0033:0x7f33d8f45b8a
[  254.245357][ T6482] 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
[  254.265072][ T6482] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  254.273527][ T6482] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  254.281522][ T6482] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  254.289519][ T6482] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  254.297512][ T6482] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  254.305523][ T6482] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  254.313538][ T6482]  </TASK>
[  254.346547][ T6495] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  254.353976][ T6495] CPU: 1 PID: 6495 Comm: syz.3.389 Not tainted syzkaller #0
[  254.361376][ T6495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  254.371627][ T6495] Call Trace:
[  254.374918][ T6495]  <TASK>
[  254.377904][ T6495]  dump_stack_lvl+0x188/0x250
[  254.382604][ T6495]  ? show_regs_print_info+0x20/0x20
[  254.387812][ T6495]  ? load_image+0x400/0x400
[  254.392328][ T6495]  sysfs_create_dir_ns+0x26a/0x290
[  254.397443][ T6495]  ? sysfs_warn_dup+0xa0/0xa0
[  254.402125][ T6495]  ? do_raw_spin_unlock+0x11d/0x230
[  254.407330][ T6495]  kobject_add_internal+0x6e0/0xd90
[  254.412534][ T6495]  kobject_init_and_add+0x128/0x190
[  254.417803][ T6495]  ? lockdep_softirqs_off+0x430/0x430
[  254.423185][ T6495]  ? kobject_add+0x230/0x230
[  254.427782][ T6495]  ? __init_swait_queue_head+0xa5/0x150
[  254.433423][ T6495]  gfs2_sys_fs_add+0x24f/0x4b0
[  254.438196][ T6495]  ? gfs2_recover_set+0x240/0x240
[  254.443223][ T6495]  ? snprintf+0xe5/0x140
[  254.447567][ T6495]  ? __free_pages+0x95/0x1a0
[  254.452164][ T6495]  ? vscnprintf+0x80/0x80
[  254.456499][ T6495]  gfs2_fill_super+0x120f/0x1f00
[  254.461449][ T6495]  ? gfs2_reconfigure+0xd30/0xd30
[  254.466499][ T6495]  ? sb_set_blocksize+0xa5/0xe0
[  254.471352][ T6495]  get_tree_bdev+0x3f1/0x610
[  254.475943][ T6495]  ? gfs2_reconfigure+0xd30/0xd30
[  254.480966][ T6495]  gfs2_get_tree+0x4d/0x1e0
[  254.485478][ T6495]  vfs_get_tree+0x88/0x270
[  254.489896][ T6495]  do_new_mount+0x24a/0xa40
[  254.494408][ T6495]  __se_sys_mount+0x2e3/0x3d0
[  254.499386][ T6495]  ? __x64_sys_mount+0xc0/0xc0
[  254.504328][ T6495]  ? lockdep_hardirqs_on+0x94/0x140
[  254.509528][ T6495]  ? __x64_sys_mount+0x1c/0xc0
[  254.514303][ T6495]  do_syscall_64+0x4c/0xa0
[  254.518717][ T6495]  ? clear_bhb_loop+0x30/0x80
[  254.523392][ T6495]  ? clear_bhb_loop+0x30/0x80
[  254.528075][ T6495]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  254.534065][ T6495] RIP: 0033:0x7feb5a094b8a
[  254.538575][ T6495] 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
[  254.558282][ T6495] RSP: 002b:00007feb592f9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  254.566726][ T6495] RAX: ffffffffffffffda RBX: 00007feb592f9ee0 RCX: 00007feb5a094b8a
[  254.574787][ T6495] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb592f9ea0
[  254.582763][ T6495] RBP: 0000200000000400 R08: 00007feb592f9ee0 R09: 0000000000000000
[  254.590734][ T6495] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  254.598791][ T6495] R13: 00007feb592f9ea0 R14: 00000000000125bb R15: 00002000000004c0
[  254.606774][ T6495]  </TASK>
[  254.610883][ T6495] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  254.624353][ T6495] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  254.631204][ T6482] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  254.726013][ T6482] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  255.219114][ T6504] loop3: detected capacity change from 0 to 32768
[  255.294660][ T6508] loop5: detected capacity change from 0 to 32768
[  255.297769][ T6504] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  255.308632][ T6504] CPU: 0 PID: 6504 Comm: syz.3.392 Not tainted syzkaller #0
[  255.315945][ T6504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  255.326022][ T6504] Call Trace:
[  255.329343][ T6504]  <TASK>
[  255.332305][ T6504]  dump_stack_lvl+0x188/0x250
[  255.337133][ T6504]  ? show_regs_print_info+0x20/0x20
[  255.342461][ T6504]  ? load_image+0x400/0x400
[  255.347021][ T6504]  sysfs_create_dir_ns+0x26a/0x290
[  255.352255][ T6504]  ? sysfs_warn_dup+0xa0/0xa0
[  255.357054][ T6504]  ? do_raw_spin_unlock+0x11d/0x230
[  255.362288][ T6504]  kobject_add_internal+0x6e0/0xd90
[  255.367522][ T6504]  kobject_init_and_add+0x128/0x190
[  255.372933][ T6504]  ? lockdep_softirqs_off+0x430/0x430
[  255.378481][ T6504]  ? kobject_add+0x230/0x230
[  255.383111][ T6504]  ? __init_swait_queue_head+0xa5/0x150
[  255.388742][ T6504]  gfs2_sys_fs_add+0x24f/0x4b0
[  255.393539][ T6504]  ? gfs2_recover_set+0x240/0x240
[  255.398698][ T6504]  ? snprintf+0xe5/0x140
[  255.403054][ T6504]  ? __free_pages+0x95/0x1a0
[  255.407779][ T6504]  ? vscnprintf+0x80/0x80
[  255.412146][ T6504]  gfs2_fill_super+0x120f/0x1f00
[  255.417124][ T6504]  ? gfs2_reconfigure+0xd30/0xd30
[  255.422186][ T6504]  ? sb_set_blocksize+0xa5/0xe0
[  255.427060][ T6504]  get_tree_bdev+0x3f1/0x610
[  255.431803][ T6504]  ? gfs2_reconfigure+0xd30/0xd30
[  255.437310][ T6504]  gfs2_get_tree+0x4d/0x1e0
[  255.441854][ T6504]  vfs_get_tree+0x88/0x270
[  255.446322][ T6504]  do_new_mount+0x24a/0xa40
[  255.450868][ T6504]  __se_sys_mount+0x2e3/0x3d0
[  255.455593][ T6504]  ? __x64_sys_mount+0xc0/0xc0
[  255.460507][ T6504]  ? lockdep_hardirqs_on+0x94/0x140
[  255.465785][ T6504]  ? __x64_sys_mount+0x1c/0xc0
[  255.470587][ T6504]  do_syscall_64+0x4c/0xa0
[  255.475031][ T6504]  ? clear_bhb_loop+0x30/0x80
[  255.480168][ T6504]  ? clear_bhb_loop+0x30/0x80
[  255.485060][ T6504]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  255.491077][ T6504] RIP: 0033:0x7feb5a094b8a
[  255.495629][ T6504] 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
[  255.516256][ T6504] RSP: 002b:00007feb592f9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  255.524709][ T6504] RAX: ffffffffffffffda RBX: 00007feb592f9ee0 RCX: 00007feb5a094b8a
[  255.532798][ T6504] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb592f9ea0
[  255.541155][ T6504] RBP: 0000200000000400 R08: 00007feb592f9ee0 R09: 0000000000000000
[  255.549365][ T6504] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  255.557563][ T6504] R13: 00007feb592f9ea0 R14: 00000000000125bb R15: 00002000000004c0
[  255.565875][ T6504]  </TASK>
[  255.570303][ T6504] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  255.584874][ T6504] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  255.634169][ T6508] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  255.641753][ T6508] CPU: 1 PID: 6508 Comm: syz.5.390 Not tainted syzkaller #0
[  255.649065][ T6508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  255.659243][ T6508] Call Trace:
[  255.662544][ T6508]  <TASK>
[  255.665494][ T6508]  dump_stack_lvl+0x188/0x250
[  255.670382][ T6508]  ? show_regs_print_info+0x20/0x20
[  255.675613][ T6508]  ? load_image+0x400/0x400
[  255.680281][ T6508]  sysfs_create_dir_ns+0x26a/0x290
[  255.685612][ T6508]  ? sysfs_warn_dup+0xa0/0xa0
[  255.688687][ T1421] ieee802154 phy0 wpan0: encryption failed: -22
[  255.690322][ T6508]  ? do_raw_spin_unlock+0x11d/0x230
[  255.696681][ T1421] ieee802154 phy1 wpan1: encryption failed: -22
[  255.701772][ T6508]  kobject_add_internal+0x6e0/0xd90
[  255.713699][ T6508]  kobject_init_and_add+0x128/0x190
[  255.718927][ T6508]  ? lockdep_softirqs_off+0x430/0x430
[  255.724324][ T6508]  ? kobject_add+0x230/0x230
[  255.728934][ T6508]  ? __init_swait_queue_head+0xa5/0x150
[  255.734511][ T6508]  gfs2_sys_fs_add+0x24f/0x4b0
[  255.739496][ T6508]  ? gfs2_recover_set+0x240/0x240
[  255.744636][ T6508]  ? snprintf+0xe5/0x140
[  255.748900][ T6508]  ? __free_pages+0x95/0x1a0
[  255.753523][ T6508]  ? vscnprintf+0x80/0x80
[  255.757888][ T6508]  gfs2_fill_super+0x120f/0x1f00
[  255.762859][ T6508]  ? gfs2_reconfigure+0xd30/0xd30
[  255.768137][ T6508]  ? sb_set_blocksize+0xa5/0xe0
[  255.773016][ T6508]  get_tree_bdev+0x3f1/0x610
[  255.777651][ T6508]  ? gfs2_reconfigure+0xd30/0xd30
[  255.782713][ T6508]  gfs2_get_tree+0x4d/0x1e0
[  255.787248][ T6508]  vfs_get_tree+0x88/0x270
[  255.791792][ T6508]  do_new_mount+0x24a/0xa40
[  255.796333][ T6508]  __se_sys_mount+0x2e3/0x3d0
[  255.801040][ T6508]  ? __x64_sys_mount+0xc0/0xc0
[  255.805843][ T6508]  ? lockdep_hardirqs_on+0x94/0x140
[  255.811083][ T6508]  ? __x64_sys_mount+0x1c/0xc0
[  255.815965][ T6508]  do_syscall_64+0x4c/0xa0
[  255.820404][ T6508]  ? clear_bhb_loop+0x30/0x80
[  255.825101][ T6508]  ? clear_bhb_loop+0x30/0x80
[  255.829868][ T6508]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  255.835790][ T6508] RIP: 0033:0x7fdc19fe7b8a
[  255.840240][ T6508] 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
[  255.860045][ T6508] RSP: 002b:00007fdc1924ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  255.868492][ T6508] RAX: ffffffffffffffda RBX: 00007fdc1924cee0 RCX: 00007fdc19fe7b8a
[  255.876491][ T6508] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdc1924cea0
[  255.884496][ T6508] RBP: 0000200000000400 R08: 00007fdc1924cee0 R09: 0000000000000000
[  255.892691][ T6508] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  255.900958][ T6508] R13: 00007fdc1924cea0 R14: 00000000000125bb R15: 00002000000004c0
[  255.908972][ T6508]  </TASK>
[  255.915378][ T6508] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  255.929968][ T6508] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  256.889659][ T6524] loop4: detected capacity change from 0 to 32768
[  257.046008][ T6520] loop5: detected capacity change from 0 to 32768
[  257.138259][ T6524] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  257.145873][ T6524] CPU: 0 PID: 6524 Comm: syz.4.397 Not tainted syzkaller #0
[  257.153188][ T6524] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  257.163361][ T6524] Call Trace:
[  257.166671][ T6524]  <TASK>
[  257.169622][ T6524]  dump_stack_lvl+0x188/0x250
[  257.174337][ T6524]  ? show_regs_print_info+0x20/0x20
[  257.179567][ T6524]  ? load_image+0x400/0x400
[  257.184125][ T6524]  sysfs_create_dir_ns+0x26a/0x290
[  257.189264][ T6524]  ? sysfs_warn_dup+0xa0/0xa0
[  257.194055][ T6524]  ? do_raw_spin_unlock+0x11d/0x230
[  257.199279][ T6524]  kobject_add_internal+0x6e0/0xd90
[  257.204604][ T6524]  kobject_init_and_add+0x128/0x190
[  257.209915][ T6524]  ? lockdep_softirqs_off+0x430/0x430
[  257.215323][ T6524]  ? kobject_add+0x230/0x230
[  257.219944][ T6524]  ? __init_swait_queue_head+0xa5/0x150
[  257.225518][ T6524]  gfs2_sys_fs_add+0x24f/0x4b0
[  257.230309][ T6524]  ? gfs2_recover_set+0x240/0x240
[  257.235354][ T6524]  ? snprintf+0xe5/0x140
[  257.239613][ T6524]  ? __free_pages+0x95/0x1a0
[  257.244230][ T6524]  ? vscnprintf+0x80/0x80
[  257.248591][ T6524]  gfs2_fill_super+0x120f/0x1f00
[  257.252671][ T6523] loop3: detected capacity change from 0 to 32768
[  257.253557][ T6524]  ? gfs2_reconfigure+0xd30/0xd30
[  257.265007][ T6524]  ? sb_set_blocksize+0xa5/0xe0
[  257.269891][ T6524]  get_tree_bdev+0x3f1/0x610
[  257.274510][ T6524]  ? gfs2_reconfigure+0xd30/0xd30
[  257.279565][ T6524]  gfs2_get_tree+0x4d/0x1e0
[  257.284102][ T6524]  vfs_get_tree+0x88/0x270
[  257.288543][ T6524]  do_new_mount+0x24a/0xa40
[  257.293081][ T6524]  __se_sys_mount+0x2e3/0x3d0
[  257.297881][ T6524]  ? __x64_sys_mount+0xc0/0xc0
[  257.302775][ T6524]  ? lockdep_hardirqs_on+0x94/0x140
[  257.308164][ T6524]  ? __x64_sys_mount+0x1c/0xc0
[  257.313137][ T6524]  do_syscall_64+0x4c/0xa0
[  257.317570][ T6524]  ? clear_bhb_loop+0x30/0x80
[  257.322266][ T6524]  ? clear_bhb_loop+0x30/0x80
[  257.326971][ T6524]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  257.332983][ T6524] RIP: 0033:0x7f20fe22cb8a
[  257.337429][ T6524] 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
[  257.357146][ T6524] RSP: 002b:00007f20fd491e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  257.365784][ T6524] RAX: ffffffffffffffda RBX: 00007f20fd491ee0 RCX: 00007f20fe22cb8a
[  257.366727][ T6506] loop2: detected capacity change from 0 to 32768
[  257.373777][ T6524] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f20fd491ea0
[  257.373795][ T6524] RBP: 0000200000000400 R08: 00007f20fd491ee0 R09: 0000000000000000
[  257.373809][ T6524] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  257.373822][ T6524] R13: 00007f20fd491ea0 R14: 00000000000125bb R15: 00002000000004c0
[  257.412361][ T6524]  </TASK>
[  257.416696][ T6524] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  257.429967][ T6524] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  257.535707][ T6523] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  257.543934][ T6523] CPU: 1 PID: 6523 Comm: syz.3.396 Not tainted syzkaller #0
[  257.551349][ T6523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  257.561430][ T6523] Call Trace:
[  257.564820][ T6523]  <TASK>
[  257.567767][ T6523]  dump_stack_lvl+0x188/0x250
[  257.572482][ T6523]  ? show_regs_print_info+0x20/0x20
[  257.577786][ T6523]  ? load_image+0x400/0x400
[  257.582329][ T6523]  sysfs_create_dir_ns+0x26a/0x290
[  257.587458][ T6523]  ? sysfs_warn_dup+0xa0/0xa0
[  257.592150][ T6523]  ? do_raw_spin_unlock+0x11d/0x230
[  257.597374][ T6523]  kobject_add_internal+0x6e0/0xd90
[  257.602610][ T6523]  kobject_init_and_add+0x128/0x190
[  257.607928][ T6523]  ? lockdep_softirqs_off+0x430/0x430
[  257.613334][ T6523]  ? kobject_add+0x230/0x230
[  257.617972][ T6523]  ? __init_swait_queue_head+0xa5/0x150
[  257.623566][ T6523]  gfs2_sys_fs_add+0x24f/0x4b0
[  257.628367][ T6523]  ? gfs2_recover_set+0x240/0x240
[  257.633517][ T6523]  ? snprintf+0xe5/0x140
[  257.637783][ T6523]  ? __free_pages+0x95/0x1a0
[  257.642411][ T6523]  ? vscnprintf+0x80/0x80
[  257.646875][ T6523]  gfs2_fill_super+0x120f/0x1f00
[  257.651866][ T6523]  ? gfs2_reconfigure+0xd30/0xd30
[  257.656947][ T6523]  ? sb_set_blocksize+0xa5/0xe0
[  257.662003][ T6523]  get_tree_bdev+0x3f1/0x610
[  257.666630][ T6523]  ? gfs2_reconfigure+0xd30/0xd30
[  257.671685][ T6523]  gfs2_get_tree+0x4d/0x1e0
[  257.676326][ T6523]  vfs_get_tree+0x88/0x270
[  257.680967][ T6523]  do_new_mount+0x24a/0xa40
[  257.685624][ T6523]  __se_sys_mount+0x2e3/0x3d0
[  257.690371][ T6523]  ? __x64_sys_mount+0xc0/0xc0
[  257.695166][ T6523]  ? lockdep_hardirqs_on+0x94/0x140
[  257.700388][ T6523]  ? __x64_sys_mount+0x1c/0xc0
[  257.705189][ T6523]  do_syscall_64+0x4c/0xa0
[  257.709657][ T6523]  ? clear_bhb_loop+0x30/0x80
[  257.714372][ T6523]  ? clear_bhb_loop+0x30/0x80
[  257.719202][ T6523]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  257.725131][ T6523] RIP: 0033:0x7feb5a094b8a
[  257.729581][ T6523] 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
[  257.749397][ T6523] RSP: 002b:00007feb592f9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  257.757846][ T6523] RAX: ffffffffffffffda RBX: 00007feb592f9ee0 RCX: 00007feb5a094b8a
[  257.765838][ T6523] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb592f9ea0
[  257.773835][ T6523] RBP: 0000200000000400 R08: 00007feb592f9ee0 R09: 0000000000000000
[  257.781914][ T6523] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  257.789905][ T6523] R13: 00007feb592f9ea0 R14: 00000000000125bb R15: 00002000000004c0
[  257.797926][ T6523]  </TASK>
[  257.802071][ T6523] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  257.815265][ T6523] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  257.838318][ T6506] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  257.855193][ T6506] CPU: 1 PID: 6506 Comm: syz.2.393 Not tainted syzkaller #0
[  257.862732][ T6506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  257.872909][ T6506] Call Trace:
[  257.876225][ T6506]  <TASK>
[  257.879224][ T6506]  dump_stack_lvl+0x188/0x250
[  257.883932][ T6506]  ? show_regs_print_info+0x20/0x20
[  257.889158][ T6506]  ? load_image+0x400/0x400
[  257.893696][ T6506]  sysfs_create_dir_ns+0x26a/0x290
[  257.898921][ T6506]  ? sysfs_warn_dup+0xa0/0xa0
[  257.903619][ T6506]  ? do_raw_spin_unlock+0x11d/0x230
[  257.908872][ T6506]  kobject_add_internal+0x6e0/0xd90
[  257.914097][ T6506]  kobject_init_and_add+0x128/0x190
[  257.919315][ T6506]  ? lockdep_softirqs_off+0x430/0x430
[  257.924804][ T6506]  ? kobject_add+0x230/0x230
[  257.929416][ T6506]  ? __init_swait_queue_head+0xa5/0x150
[  257.934996][ T6506]  gfs2_sys_fs_add+0x24f/0x4b0
[  257.939790][ T6506]  ? gfs2_recover_set+0x240/0x240
[  257.944929][ T6506]  ? snprintf+0xe5/0x140
[  257.949280][ T6506]  ? __free_pages+0x95/0x1a0
[  257.953890][ T6506]  ? vscnprintf+0x80/0x80
[  257.958250][ T6506]  gfs2_fill_super+0x120f/0x1f00
[  257.963224][ T6506]  ? gfs2_reconfigure+0xd30/0xd30
[  257.968428][ T6506]  ? sb_set_blocksize+0xa5/0xe0
[  257.973320][ T6506]  get_tree_bdev+0x3f1/0x610
[  257.977937][ T6506]  ? gfs2_reconfigure+0xd30/0xd30
[  257.983098][ T6506]  gfs2_get_tree+0x4d/0x1e0
[  257.987649][ T6506]  vfs_get_tree+0x88/0x270
[  257.992104][ T6506]  do_new_mount+0x24a/0xa40
[  257.996742][ T6506]  __se_sys_mount+0x2e3/0x3d0
[  258.001459][ T6506]  ? __x64_sys_mount+0xc0/0xc0
[  258.006259][ T6506]  ? lockdep_hardirqs_on+0x94/0x140
[  258.011498][ T6506]  ? __x64_sys_mount+0x1c/0xc0
[  258.016296][ T6506]  do_syscall_64+0x4c/0xa0
[  258.020759][ T6506]  ? clear_bhb_loop+0x30/0x80
[  258.025471][ T6506]  ? clear_bhb_loop+0x30/0x80
[  258.030351][ T6506]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  258.036268][ T6506] RIP: 0033:0x7f33d8f45b8a
[  258.040797][ T6506] 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
[  258.060522][ T6506] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  258.068976][ T6506] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  258.077067][ T6506] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  258.085075][ T6506] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  258.093082][ T6506] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  258.101196][ T6506] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  258.109396][ T6506]  </TASK>
[  258.123116][ T6520] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  258.130609][ T6520] CPU: 1 PID: 6520 Comm: syz.5.398 Not tainted syzkaller #0
[  258.137917][ T6520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  258.147998][ T6520] Call Trace:
[  258.151321][ T6520]  <TASK>
[  258.154272][ T6520]  dump_stack_lvl+0x188/0x250
[  258.158986][ T6520]  ? show_regs_print_info+0x20/0x20
[  258.164230][ T6520]  ? load_image+0x400/0x400
[  258.168776][ T6520]  sysfs_create_dir_ns+0x26a/0x290
[  258.174003][ T6520]  ? sysfs_warn_dup+0xa0/0xa0
[  258.178711][ T6520]  ? do_raw_spin_unlock+0x11d/0x230
[  258.184206][ T6520]  kobject_add_internal+0x6e0/0xd90
[  258.189521][ T6520]  kobject_init_and_add+0x128/0x190
[  258.194750][ T6520]  ? lockdep_softirqs_off+0x430/0x430
[  258.200179][ T6520]  ? kobject_add+0x230/0x230
[  258.204806][ T6520]  ? __init_swait_queue_head+0xa5/0x150
[  258.210382][ T6520]  gfs2_sys_fs_add+0x24f/0x4b0
[  258.215268][ T6520]  ? gfs2_recover_set+0x240/0x240
[  258.220318][ T6520]  ? snprintf+0xe5/0x140
[  258.224600][ T6520]  ? __free_pages+0x95/0x1a0
[  258.229395][ T6520]  ? vscnprintf+0x80/0x80
[  258.233760][ T6520]  gfs2_fill_super+0x120f/0x1f00
[  258.238753][ T6520]  ? gfs2_reconfigure+0xd30/0xd30
[  258.243836][ T6520]  ? sb_set_blocksize+0xa5/0xe0
[  258.248723][ T6520]  get_tree_bdev+0x3f1/0x610
[  258.253354][ T6520]  ? gfs2_reconfigure+0xd30/0xd30
[  258.258525][ T6520]  gfs2_get_tree+0x4d/0x1e0
[  258.263058][ T6520]  vfs_get_tree+0x88/0x270
[  258.267502][ T6520]  do_new_mount+0x24a/0xa40
[  258.272045][ T6520]  __se_sys_mount+0x2e3/0x3d0
[  258.276759][ T6520]  ? __x64_sys_mount+0xc0/0xc0
[  258.281564][ T6520]  ? lockdep_hardirqs_on+0x94/0x140
[  258.286901][ T6520]  ? __x64_sys_mount+0x1c/0xc0
[  258.291698][ T6520]  do_syscall_64+0x4c/0xa0
[  258.296141][ T6520]  ? clear_bhb_loop+0x30/0x80
[  258.300845][ T6520]  ? clear_bhb_loop+0x30/0x80
[  258.305557][ T6520]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  258.311478][ T6520] RIP: 0033:0x7fdc19fe7b8a
[  258.315915][ T6520] 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
[  258.335543][ T6520] RSP: 002b:00007fdc1924ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  258.343991][ T6520] RAX: ffffffffffffffda RBX: 00007fdc1924cee0 RCX: 00007fdc19fe7b8a
[  258.351989][ T6520] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdc1924cea0
[  258.359984][ T6520] RBP: 0000200000000400 R08: 00007fdc1924cee0 R09: 0000000000000000
[  258.367979][ T6520] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  258.375981][ T6520] R13: 00007fdc1924cea0 R14: 00000000000125bb R15: 00002000000004c0
[  258.384004][ T6520]  </TASK>
[  258.388578][ T6520] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  258.401742][ T6520] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  258.678144][ T6506] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  258.691415][ T6506] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/02/28 14:51:04 executed programs: 400
[  260.079062][ T6551] loop5: detected capacity change from 0 to 32768
[  260.146905][ T6549] loop2: detected capacity change from 0 to 32768
[  260.218529][ T6551] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  260.226609][ T6551] CPU: 1 PID: 6551 Comm: syz.5.408 Not tainted syzkaller #0
[  260.233938][ T6551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  260.244017][ T6551] Call Trace:
[  260.247329][ T6551]  <TASK>
[  260.250281][ T6551]  dump_stack_lvl+0x188/0x250
[  260.254994][ T6551]  ? show_regs_print_info+0x20/0x20
[  260.260502][ T6551]  ? load_image+0x400/0x400
[  260.265050][ T6551]  sysfs_create_dir_ns+0x26a/0x290
[  260.270187][ T6551]  ? sysfs_warn_dup+0xa0/0xa0
[  260.274889][ T6551]  ? do_raw_spin_unlock+0x11d/0x230
[  260.280113][ T6551]  kobject_add_internal+0x6e0/0xd90
[  260.285340][ T6551]  kobject_init_and_add+0x128/0x190
[  260.290662][ T6551]  ? lockdep_softirqs_off+0x430/0x430
[  260.296067][ T6551]  ? kobject_add+0x230/0x230
[  260.300748][ T6551]  ? __init_swait_queue_head+0xa5/0x150
[  260.301760][ T6555] loop4: detected capacity change from 0 to 32768
[  260.306321][ T6551]  gfs2_sys_fs_add+0x24f/0x4b0
[  260.306349][ T6551]  ? gfs2_recover_set+0x240/0x240
[  260.306369][ T6551]  ? snprintf+0xe5/0x140
[  260.306385][ T6551]  ? __free_pages+0x95/0x1a0
[  260.306410][ T6551]  ? vscnprintf+0x80/0x80
[  260.306439][ T6551]  gfs2_fill_super+0x120f/0x1f00
[  260.306475][ T6551]  ? gfs2_reconfigure+0xd30/0xd30
[  260.306515][ T6551]  ? sb_set_blocksize+0xa5/0xe0
[  260.306538][ T6551]  get_tree_bdev+0x3f1/0x610
[  260.306563][ T6551]  ? gfs2_reconfigure+0xd30/0xd30
[  260.306587][ T6551]  gfs2_get_tree+0x4d/0x1e0
[  260.306612][ T6551]  vfs_get_tree+0x88/0x270
[  260.306635][ T6551]  do_new_mount+0x24a/0xa40
[  260.306666][ T6551]  __se_sys_mount+0x2e3/0x3d0
[  260.306693][ T6551]  ? __x64_sys_mount+0xc0/0xc0
[  260.306718][ T6551]  ? lockdep_hardirqs_on+0x94/0x140
[  260.306739][ T6551]  ? __x64_sys_mount+0x1c/0xc0
[  260.306763][ T6551]  do_syscall_64+0x4c/0xa0
[  260.306788][ T6551]  ? clear_bhb_loop+0x30/0x80
[  260.306807][ T6551]  ? clear_bhb_loop+0x30/0x80
[  260.306828][ T6551]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  260.306848][ T6551] RIP: 0033:0x7fdc19fe7b8a
[  260.306869][ T6551] 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
[  260.306887][ T6551] RSP: 002b:00007fdc1924ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  260.306912][ T6551] RAX: ffffffffffffffda RBX: 00007fdc1924cee0 RCX: 00007fdc19fe7b8a
[  260.306927][ T6551] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdc1924cea0
[  260.306943][ T6551] RBP: 0000200000000400 R08: 00007fdc1924cee0 R09: 0000000000000000
[  260.306957][ T6551] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  260.306971][ T6551] R13: 00007fdc1924cea0 R14: 00000000000125bb R15: 00002000000004c0
[  260.307002][ T6551]  </TASK>
[  260.307705][ T6551] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  260.401301][ T6549] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  260.403805][ T6551] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  260.409473][ T6549] CPU: 0 PID: 6549 Comm: syz.2.409 Not tainted syzkaller #0
[  260.525312][ T6549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  260.535380][ T6549] Call Trace:
[  260.538673][ T6549]  <TASK>
[  260.541620][ T6549]  dump_stack_lvl+0x188/0x250
[  260.546329][ T6549]  ? show_regs_print_info+0x20/0x20
[  260.551654][ T6549]  ? load_image+0x400/0x400
[  260.556182][ T6549]  sysfs_create_dir_ns+0x26a/0x290
[  260.561310][ T6549]  ? sysfs_warn_dup+0xa0/0xa0
[  260.566087][ T6549]  ? do_raw_spin_unlock+0x11d/0x230
[  260.571295][ T6549]  kobject_add_internal+0x6e0/0xd90
[  260.576596][ T6549]  kobject_init_and_add+0x128/0x190
[  260.581801][ T6549]  ? lockdep_softirqs_off+0x430/0x430
[  260.587186][ T6549]  ? kobject_add+0x230/0x230
[  260.591785][ T6549]  ? __init_swait_queue_head+0xa5/0x150
[  260.597336][ T6549]  gfs2_sys_fs_add+0x24f/0x4b0
[  260.602103][ T6549]  ? gfs2_recover_set+0x240/0x240
[  260.607137][ T6549]  ? snprintf+0xe5/0x140
[  260.611466][ T6549]  ? __free_pages+0x95/0x1a0
[  260.616058][ T6549]  ? vscnprintf+0x80/0x80
[  260.620393][ T6549]  gfs2_fill_super+0x120f/0x1f00
[  260.625359][ T6549]  ? gfs2_reconfigure+0xd30/0xd30
[  260.630431][ T6549]  ? sb_set_blocksize+0xa5/0xe0
[  260.635318][ T6549]  get_tree_bdev+0x3f1/0x610
[  260.640018][ T6549]  ? gfs2_reconfigure+0xd30/0xd30
[  260.645059][ T6549]  gfs2_get_tree+0x4d/0x1e0
[  260.649599][ T6549]  vfs_get_tree+0x88/0x270
[  260.654371][ T6549]  do_new_mount+0x24a/0xa40
[  260.658884][ T6549]  __se_sys_mount+0x2e3/0x3d0
[  260.663575][ T6549]  ? __x64_sys_mount+0xc0/0xc0
[  260.668347][ T6549]  ? lockdep_hardirqs_on+0x94/0x140
[  260.673545][ T6549]  ? __x64_sys_mount+0x1c/0xc0
[  260.678311][ T6549]  do_syscall_64+0x4c/0xa0
[  260.682726][ T6549]  ? clear_bhb_loop+0x30/0x80
[  260.687495][ T6549]  ? clear_bhb_loop+0x30/0x80
[  260.692173][ T6549]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  260.698068][ T6549] RIP: 0033:0x7f33d8f45b8a
[  260.702499][ T6549] 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
[  260.722575][ T6549] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  260.731012][ T6549] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  260.739084][ T6549] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  260.747061][ T6549] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  260.755036][ T6549] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  260.763031][ T6549] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  260.771103][ T6549]  </TASK>
[  260.775180][ T6549] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  260.788585][ T6549] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  260.947881][ T6555] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  260.955366][ T6555] CPU: 0 PID: 6555 Comm: syz.4.410 Not tainted syzkaller #0
[  260.962678][ T6555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  260.973050][ T6555] Call Trace:
[  260.976353][ T6555]  <TASK>
[  260.979303][ T6555]  dump_stack_lvl+0x188/0x250
[  260.984097][ T6555]  ? show_regs_print_info+0x20/0x20
[  260.989321][ T6555]  ? load_image+0x400/0x400
[  260.993863][ T6555]  sysfs_create_dir_ns+0x26a/0x290
[  260.998996][ T6555]  ? sysfs_warn_dup+0xa0/0xa0
[  261.003776][ T6555]  ? do_raw_spin_unlock+0x11d/0x230
[  261.009127][ T6555]  kobject_add_internal+0x6e0/0xd90
[  261.014460][ T6555]  kobject_init_and_add+0x128/0x190
[  261.019688][ T6555]  ? lockdep_softirqs_off+0x430/0x430
[  261.025103][ T6555]  ? kobject_add+0x230/0x230
[  261.029731][ T6555]  ? __init_swait_queue_head+0xa5/0x150
[  261.035416][ T6555]  gfs2_sys_fs_add+0x24f/0x4b0
[  261.040212][ T6555]  ? gfs2_recover_set+0x240/0x240
[  261.045350][ T6555]  ? snprintf+0xe5/0x140
[  261.049614][ T6555]  ? __free_pages+0x95/0x1a0
[  261.054329][ T6555]  ? vscnprintf+0x80/0x80
[  261.058707][ T6555]  gfs2_fill_super+0x120f/0x1f00
[  261.063879][ T6555]  ? gfs2_reconfigure+0xd30/0xd30
[  261.068946][ T6555]  ? sb_set_blocksize+0xa5/0xe0
[  261.074014][ T6555]  get_tree_bdev+0x3f1/0x610
[  261.078645][ T6555]  ? gfs2_reconfigure+0xd30/0xd30
[  261.083706][ T6555]  gfs2_get_tree+0x4d/0x1e0
[  261.088249][ T6555]  vfs_get_tree+0x88/0x270
[  261.092701][ T6555]  do_new_mount+0x24a/0xa40
[  261.097340][ T6555]  __se_sys_mount+0x2e3/0x3d0
[  261.102146][ T6555]  ? __x64_sys_mount+0xc0/0xc0
[  261.106950][ T6555]  ? lockdep_hardirqs_on+0x94/0x140
[  261.112177][ T6555]  ? __x64_sys_mount+0x1c/0xc0
[  261.116973][ T6555]  do_syscall_64+0x4c/0xa0
[  261.121409][ T6555]  ? clear_bhb_loop+0x30/0x80
[  261.126206][ T6555]  ? clear_bhb_loop+0x30/0x80
[  261.130998][ T6555]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  261.136916][ T6555] RIP: 0033:0x7f20fe22cb8a
[  261.141371][ T6555] 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
[  261.161129][ T6555] RSP: 002b:00007f20fd491e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  261.169694][ T6555] RAX: ffffffffffffffda RBX: 00007f20fd491ee0 RCX: 00007f20fe22cb8a
[  261.177813][ T6555] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f20fd491ea0
[  261.185818][ T6555] RBP: 0000200000000400 R08: 00007f20fd491ee0 R09: 0000000000000000
[  261.193960][ T6555] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  261.200119][ T6534] loop0: detected capacity change from 0 to 32768
[  261.201956][ T6555] R13: 00007f20fd491ea0 R14: 00000000000125bb R15: 00002000000004c0
[  261.216667][ T6555]  </TASK>
[  261.220985][ T6555] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  261.235173][ T6555] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  261.729014][ T6560] loop5: detected capacity change from 0 to 32768
[  261.923292][ T6563] loop2: detected capacity change from 0 to 32768
[  262.036491][ T6560] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  262.044169][ T6560] CPU: 0 PID: 6560 Comm: syz.5.411 Not tainted syzkaller #0
[  262.051488][ T6560] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  262.062140][ T6560] Call Trace:
[  262.065450][ T6560]  <TASK>
[  262.068404][ T6560]  dump_stack_lvl+0x188/0x250
[  262.073123][ T6560]  ? show_regs_print_info+0x20/0x20
[  262.078353][ T6560]  ? load_image+0x400/0x400
[  262.082909][ T6560]  sysfs_create_dir_ns+0x26a/0x290
[  262.088058][ T6560]  ? sysfs_warn_dup+0xa0/0xa0
[  262.092775][ T6560]  ? do_raw_spin_unlock+0x11d/0x230
[  262.098004][ T6560]  kobject_add_internal+0x6e0/0xd90
[  262.103422][ T6560]  kobject_init_and_add+0x128/0x190
[  262.108778][ T6560]  ? lockdep_softirqs_off+0x430/0x430
[  262.114178][ T6560]  ? kobject_add+0x230/0x230
[  262.118796][ T6560]  ? __init_swait_queue_head+0xa5/0x150
[  262.124367][ T6560]  gfs2_sys_fs_add+0x24f/0x4b0
[  262.129161][ T6560]  ? gfs2_recover_set+0x240/0x240
[  262.134206][ T6560]  ? snprintf+0xe5/0x140
[  262.138469][ T6560]  ? __free_pages+0x95/0x1a0
[  262.138619][ T6564] loop4: detected capacity change from 0 to 32768
[  262.143076][ T6560]  ? vscnprintf+0x80/0x80
[  262.154015][ T6560]  gfs2_fill_super+0x120f/0x1f00
[  262.159009][ T6560]  ? gfs2_reconfigure+0xd30/0xd30
[  262.164078][ T6560]  ? sb_set_blocksize+0xa5/0xe0
[  262.168966][ T6560]  get_tree_bdev+0x3f1/0x610
[  262.173587][ T6560]  ? gfs2_reconfigure+0xd30/0xd30
[  262.178740][ T6560]  gfs2_get_tree+0x4d/0x1e0
[  262.183290][ T6560]  vfs_get_tree+0x88/0x270
[  262.187918][ T6560]  do_new_mount+0x24a/0xa40
[  262.192459][ T6560]  __se_sys_mount+0x2e3/0x3d0
[  262.197170][ T6560]  ? __x64_sys_mount+0xc0/0xc0
[  262.202408][ T6560]  ? lockdep_hardirqs_on+0x94/0x140
[  262.207627][ T6560]  ? __x64_sys_mount+0x1c/0xc0
[  262.212420][ T6560]  do_syscall_64+0x4c/0xa0
[  262.216866][ T6560]  ? clear_bhb_loop+0x30/0x80
[  262.221564][ T6560]  ? clear_bhb_loop+0x30/0x80
[  262.226264][ T6560]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  262.232298][ T6560] RIP: 0033:0x7fdc19fe7b8a
[  262.236752][ T6560] 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
[  262.256520][ T6560] RSP: 002b:00007fdc1924ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  262.265109][ T6560] RAX: ffffffffffffffda RBX: 00007fdc1924cee0 RCX: 00007fdc19fe7b8a
[  262.273116][ T6560] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdc1924cea0
[  262.281120][ T6560] RBP: 0000200000000400 R08: 00007fdc1924cee0 R09: 0000000000000000
[  262.289252][ T6560] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  262.297258][ T6560] R13: 00007fdc1924cea0 R14: 00000000000125bb R15: 00002000000004c0
[  262.305285][ T6560]  </TASK>
[  262.309508][ T6560] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  262.322707][ T6560] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  262.350756][ T6563] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  262.357733][ T6564] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  262.359537][ T6563] CPU: 0 PID: 6563 Comm: syz.2.413 Not tainted syzkaller #0
[  262.373201][ T6563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  262.383485][ T6563] Call Trace:
[  262.386880][ T6563]  <TASK>
[  262.389816][ T6563]  dump_stack_lvl+0x188/0x250
[  262.394592][ T6563]  ? show_regs_print_info+0x20/0x20
[  262.399796][ T6563]  ? load_image+0x400/0x400
[  262.404317][ T6563]  sysfs_create_dir_ns+0x26a/0x290
[  262.409434][ T6563]  ? sysfs_warn_dup+0xa0/0xa0
[  262.414202][ T6563]  ? do_raw_spin_unlock+0x11d/0x230
[  262.419414][ T6563]  kobject_add_internal+0x6e0/0xd90
[  262.424619][ T6563]  kobject_init_and_add+0x128/0x190
[  262.429821][ T6563]  ? lockdep_softirqs_off+0x430/0x430
[  262.435202][ T6563]  ? kobject_add+0x230/0x230
[  262.439980][ T6563]  ? __init_swait_queue_head+0xa5/0x150
[  262.445533][ T6563]  gfs2_sys_fs_add+0x24f/0x4b0
[  262.450305][ T6563]  ? gfs2_recover_set+0x240/0x240
[  262.455332][ T6563]  ? snprintf+0xe5/0x140
[  262.459572][ T6563]  ? __free_pages+0x95/0x1a0
[  262.464168][ T6563]  ? vscnprintf+0x80/0x80
[  262.468507][ T6563]  gfs2_fill_super+0x120f/0x1f00
[  262.473462][ T6563]  ? gfs2_reconfigure+0xd30/0xd30
[  262.478504][ T6563]  ? sb_set_blocksize+0xa5/0xe0
[  262.483367][ T6563]  get_tree_bdev+0x3f1/0x610
[  262.487963][ T6563]  ? gfs2_reconfigure+0xd30/0xd30
[  262.492990][ T6563]  gfs2_get_tree+0x4d/0x1e0
[  262.497614][ T6563]  vfs_get_tree+0x88/0x270
[  262.502071][ T6563]  do_new_mount+0x24a/0xa40
[  262.506692][ T6563]  __se_sys_mount+0x2e3/0x3d0
[  262.511395][ T6563]  ? __x64_sys_mount+0xc0/0xc0
[  262.516255][ T6563]  ? lockdep_hardirqs_on+0x94/0x140
[  262.521560][ T6563]  ? __x64_sys_mount+0x1c/0xc0
[  262.526332][ T6563]  do_syscall_64+0x4c/0xa0
[  262.530773][ T6563]  ? clear_bhb_loop+0x30/0x80
[  262.535452][ T6563]  ? clear_bhb_loop+0x30/0x80
[  262.540131][ T6563]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  262.546027][ T6563] RIP: 0033:0x7f33d8f45b8a
[  262.550444][ T6563] 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
[  262.570070][ T6563] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  262.578662][ T6563] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  262.586732][ T6563] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  262.594712][ T6563] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  262.602788][ T6563] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  262.610763][ T6563] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  262.618921][ T6563]  </TASK>
[  262.621943][ T6564] CPU: 1 PID: 6564 Comm: syz.4.414 Not tainted syzkaller #0
[  262.622973][ T6563] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  262.629249][ T6564] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  262.629263][ T6564] Call Trace:
[  262.629271][ T6564]  <TASK>
[  262.629280][ T6564]  dump_stack_lvl+0x188/0x250
[  262.642431][ T6563] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  262.652441][ T6564]  ? show_regs_print_info+0x20/0x20
[  262.652499][ T6564]  ? load_image+0x400/0x400
[  262.652532][ T6564]  sysfs_create_dir_ns+0x26a/0x290
[  262.684871][ T6564]  ? sysfs_warn_dup+0xa0/0xa0
[  262.689581][ T6564]  ? do_raw_spin_unlock+0x11d/0x230
[  262.694849][ T6564]  kobject_add_internal+0x6e0/0xd90
[  262.700080][ T6564]  kobject_init_and_add+0x128/0x190
[  262.705305][ T6564]  ? lockdep_softirqs_off+0x430/0x430
[  262.710830][ T6564]  ? kobject_add+0x230/0x230
[  262.715507][ T6564]  ? __init_swait_queue_head+0xa5/0x150
[  262.721196][ T6564]  gfs2_sys_fs_add+0x24f/0x4b0
[  262.726175][ T6564]  ? gfs2_recover_set+0x240/0x240
[  262.731229][ T6564]  ? snprintf+0xe5/0x140
[  262.735496][ T6564]  ? __free_pages+0x95/0x1a0
[  262.740429][ T6564]  ? vscnprintf+0x80/0x80
[  262.744889][ T6564]  gfs2_fill_super+0x120f/0x1f00
[  262.749870][ T6564]  ? gfs2_reconfigure+0xd30/0xd30
[  262.755034][ T6564]  ? sb_set_blocksize+0xa5/0xe0
[  262.760012][ T6564]  get_tree_bdev+0x3f1/0x610
[  262.764696][ T6564]  ? gfs2_reconfigure+0xd30/0xd30
[  262.769755][ T6564]  gfs2_get_tree+0x4d/0x1e0
[  262.774289][ T6564]  vfs_get_tree+0x88/0x270
[  262.778765][ T6564]  do_new_mount+0x24a/0xa40
[  262.783389][ T6564]  __se_sys_mount+0x2e3/0x3d0
[  262.788112][ T6564]  ? __x64_sys_mount+0xc0/0xc0
[  262.793000][ T6564]  ? lockdep_hardirqs_on+0x94/0x140
[  262.798230][ T6564]  ? __x64_sys_mount+0x1c/0xc0
[  262.803284][ T6564]  do_syscall_64+0x4c/0xa0
[  262.807838][ T6564]  ? clear_bhb_loop+0x30/0x80
[  262.812548][ T6564]  ? clear_bhb_loop+0x30/0x80
[  262.817254][ T6564]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  262.823267][ T6564] RIP: 0033:0x7f20fe22cb8a
[  262.827712][ T6564] 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
[  262.847436][ T6564] RSP: 002b:00007f20fd491e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  262.856081][ T6564] RAX: ffffffffffffffda RBX: 00007f20fd491ee0 RCX: 00007f20fe22cb8a
[  262.864089][ T6564] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f20fd491ea0
[  262.872722][ T6564] RBP: 0000200000000400 R08: 00007f20fd491ee0 R09: 0000000000000000
[  262.880721][ T6564] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  262.888169][ T1109] Bluetooth: hci0: command 0x0406 tx timeout
[  262.888902][ T6564] R13: 00007f20fd491ea0 R14: 00000000000125bb R15: 00002000000004c0
[  262.903140][ T6564]  </TASK>
[  262.906267][ T6564] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  262.919612][ T6564] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  263.788158][ T6573] loop0: detected capacity change from 0 to 32768
[  264.010101][ T6573] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  264.017908][ T6573] CPU: 0 PID: 6573 Comm: syz.0.412 Not tainted syzkaller #0
[  264.025237][ T6573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  264.035582][ T6573] Call Trace:
[  264.038891][ T6573]  <TASK>
[  264.041845][ T6573]  dump_stack_lvl+0x188/0x250
[  264.046585][ T6573]  ? show_regs_print_info+0x20/0x20
[  264.051815][ T6573]  ? load_image+0x400/0x400
[  264.056360][ T6573]  sysfs_create_dir_ns+0x26a/0x290
[  264.061497][ T6573]  ? sysfs_warn_dup+0xa0/0xa0
[  264.066203][ T6573]  ? do_raw_spin_unlock+0x11d/0x230
[  264.071432][ T6573]  kobject_add_internal+0x6e0/0xd90
[  264.076847][ T6573]  kobject_init_and_add+0x128/0x190
[  264.082078][ T6573]  ? lockdep_softirqs_off+0x430/0x430
[  264.087580][ T6573]  ? kobject_add+0x230/0x230
[  264.092218][ T6573]  ? __init_swait_queue_head+0xa5/0x150
[  264.097798][ T6573]  gfs2_sys_fs_add+0x24f/0x4b0
[  264.102605][ T6573]  ? gfs2_recover_set+0x240/0x240
[  264.107714][ T6573]  ? snprintf+0xe5/0x140
[  264.111985][ T6573]  ? __free_pages+0x95/0x1a0
[  264.116691][ T6573]  ? vscnprintf+0x80/0x80
[  264.121052][ T6573]  gfs2_fill_super+0x120f/0x1f00
[  264.126117][ T6573]  ? gfs2_reconfigure+0xd30/0xd30
[  264.131189][ T6573]  ? sb_set_blocksize+0xa5/0xe0
[  264.136067][ T6573]  get_tree_bdev+0x3f1/0x610
[  264.140714][ T6573]  ? gfs2_reconfigure+0xd30/0xd30
[  264.142048][ T6576] loop5: detected capacity change from 0 to 32768
[  264.145754][ T6573]  gfs2_get_tree+0x4d/0x1e0
[  264.145782][ T6573]  vfs_get_tree+0x88/0x270
[  264.161204][ T6573]  do_new_mount+0x24a/0xa40
[  264.166353][ T6573]  __se_sys_mount+0x2e3/0x3d0
[  264.171071][ T6573]  ? __x64_sys_mount+0xc0/0xc0
[  264.175860][ T6573]  ? lockdep_hardirqs_on+0x94/0x140
[  264.181084][ T6573]  ? __x64_sys_mount+0x1c/0xc0
[  264.185879][ T6573]  do_syscall_64+0x4c/0xa0
[  264.190317][ T6573]  ? clear_bhb_loop+0x30/0x80
[  264.195019][ T6573]  ? clear_bhb_loop+0x30/0x80
[  264.199724][ T6573]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  264.205639][ T6573] RIP: 0033:0x7f4050558b8a
[  264.210078][ T6573] 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
[  264.229981][ T6573] RSP: 002b:00007f404f7bde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  264.238438][ T6573] RAX: ffffffffffffffda RBX: 00007f404f7bdee0 RCX: 00007f4050558b8a
[  264.246451][ T6573] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f404f7bdea0
[  264.254542][ T6573] RBP: 0000200000000400 R08: 00007f404f7bdee0 R09: 0000000000000000
[  264.262545][ T6573] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  264.270541][ T6573] R13: 00007f404f7bdea0 R14: 00000000000125bb R15: 00002000000004c0
[  264.278555][ T6573]  </TASK>
[  264.282739][ T6573] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  264.295937][ T6573] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/02/28 14:51:09 executed programs: 415
[  264.633069][ T6583] loop2: detected capacity change from 0 to 32768
[  264.962891][ T6584] loop3: detected capacity change from 0 to 32768
[  265.090007][ T6571] loop4: detected capacity change from 0 to 32768
[  265.097092][ T6576] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  265.104609][ T6576] CPU: 1 PID: 6576 Comm: syz.5.417 Not tainted syzkaller #0
[  265.111915][ T6576] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  265.121998][ T6576] Call Trace:
[  265.125303][ T6576]  <TASK>
[  265.128256][ T6576]  dump_stack_lvl+0x188/0x250
[  265.132966][ T6576]  ? show_regs_print_info+0x20/0x20
[  265.138278][ T6576]  ? load_image+0x400/0x400
[  265.142836][ T6576]  sysfs_create_dir_ns+0x26a/0x290
[  265.147971][ T6576]  ? sysfs_warn_dup+0xa0/0xa0
[  265.152672][ T6576]  ? do_raw_spin_unlock+0x11d/0x230
[  265.157889][ T6576]  kobject_add_internal+0x6e0/0xd90
[  265.163116][ T6576]  kobject_init_and_add+0x128/0x190
[  265.168505][ T6576]  ? lockdep_softirqs_off+0x430/0x430
[  265.173911][ T6576]  ? kobject_add+0x230/0x230
[  265.178539][ T6576]  ? __init_swait_queue_head+0xa5/0x150
[  265.184212][ T6576]  gfs2_sys_fs_add+0x24f/0x4b0
[  265.189000][ T6576]  ? gfs2_recover_set+0x240/0x240
[  265.194041][ T6576]  ? snprintf+0xe5/0x140
[  265.198301][ T6576]  ? __free_pages+0x95/0x1a0
[  265.202923][ T6576]  ? vscnprintf+0x80/0x80
[  265.207305][ T6576]  gfs2_fill_super+0x120f/0x1f00
[  265.212290][ T6576]  ? gfs2_reconfigure+0xd30/0xd30
[  265.217436][ T6576]  ? sb_set_blocksize+0xa5/0xe0
[  265.222304][ T6576]  get_tree_bdev+0x3f1/0x610
[  265.226918][ T6576]  ? gfs2_reconfigure+0xd30/0xd30
[  265.231958][ T6576]  gfs2_get_tree+0x4d/0x1e0
[  265.236479][ T6576]  vfs_get_tree+0x88/0x270
[  265.241092][ T6576]  do_new_mount+0x24a/0xa40
[  265.245622][ T6576]  __se_sys_mount+0x2e3/0x3d0
[  265.250334][ T6576]  ? __x64_sys_mount+0xc0/0xc0
[  265.255131][ T6576]  ? lockdep_hardirqs_on+0x94/0x140
[  265.260354][ T6576]  ? __x64_sys_mount+0x1c/0xc0
[  265.265148][ T6576]  do_syscall_64+0x4c/0xa0
[  265.269585][ T6576]  ? clear_bhb_loop+0x30/0x80
[  265.274372][ T6576]  ? clear_bhb_loop+0x30/0x80
[  265.279116][ T6576]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  265.285029][ T6576] RIP: 0033:0x7fdc19fe7b8a
[  265.289468][ T6576] 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
[  265.309181][ T6576] RSP: 002b:00007fdc1924ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  265.317638][ T6576] RAX: ffffffffffffffda RBX: 00007fdc1924cee0 RCX: 00007fdc19fe7b8a
[  265.325730][ T6576] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdc1924cea0
[  265.333824][ T6576] RBP: 0000200000000400 R08: 00007fdc1924cee0 R09: 0000000000000000
[  265.341828][ T6576] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  265.349914][ T6576] R13: 00007fdc1924cea0 R14: 00000000000125bb R15: 00002000000004c0
[  265.358281][ T6576]  </TASK>
[  265.361416][ T6576] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  265.374768][ T6576] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  265.402390][ T6584] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  265.402463][ T6583] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  265.411250][ T6584] CPU: 0 PID: 6584 Comm: syz.3.420 Not tainted syzkaller #0
[  265.424573][ T6584] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  265.434826][ T6584] Call Trace:
[  265.438111][ T6584]  <TASK>
[  265.441045][ T6584]  dump_stack_lvl+0x188/0x250
[  265.445755][ T6584]  ? show_regs_print_info+0x20/0x20
[  265.450959][ T6584]  ? load_image+0x400/0x400
[  265.455479][ T6584]  sysfs_create_dir_ns+0x26a/0x290
[  265.460595][ T6584]  ? sysfs_warn_dup+0xa0/0xa0
[  265.465279][ T6584]  ? do_raw_spin_unlock+0x11d/0x230
[  265.470501][ T6584]  kobject_add_internal+0x6e0/0xd90
[  265.475720][ T6584]  kobject_init_and_add+0x128/0x190
[  265.481095][ T6584]  ? lockdep_softirqs_off+0x430/0x430
[  265.486474][ T6584]  ? kobject_add+0x230/0x230
[  265.491158][ T6584]  ? __init_swait_queue_head+0xa5/0x150
[  265.496840][ T6584]  gfs2_sys_fs_add+0x24f/0x4b0
[  265.501608][ T6584]  ? gfs2_recover_set+0x240/0x240
[  265.506631][ T6584]  ? snprintf+0xe5/0x140
[  265.510873][ T6584]  ? __free_pages+0x95/0x1a0
[  265.515477][ T6584]  ? vscnprintf+0x80/0x80
[  265.519830][ T6584]  gfs2_fill_super+0x120f/0x1f00
[  265.525115][ T6584]  ? gfs2_reconfigure+0xd30/0xd30
[  265.530156][ T6584]  ? sb_set_blocksize+0xa5/0xe0
[  265.535007][ T6584]  get_tree_bdev+0x3f1/0x610
[  265.539599][ T6584]  ? gfs2_reconfigure+0xd30/0xd30
[  265.544629][ T6584]  gfs2_get_tree+0x4d/0x1e0
[  265.549135][ T6584]  vfs_get_tree+0x88/0x270
[  265.553556][ T6584]  do_new_mount+0x24a/0xa40
[  265.558070][ T6584]  __se_sys_mount+0x2e3/0x3d0
[  265.562888][ T6584]  ? __x64_sys_mount+0xc0/0xc0
[  265.567690][ T6584]  ? lockdep_hardirqs_on+0x94/0x140
[  265.572995][ T6584]  ? __x64_sys_mount+0x1c/0xc0
[  265.577785][ T6584]  do_syscall_64+0x4c/0xa0
[  265.582300][ T6584]  ? clear_bhb_loop+0x30/0x80
[  265.586976][ T6584]  ? clear_bhb_loop+0x30/0x80
[  265.591667][ T6584]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  265.597567][ T6584] RIP: 0033:0x7feb5a094b8a
[  265.601984][ T6584] 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
[  265.621701][ T6584] RSP: 002b:00007feb592f9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  265.630218][ T6584] RAX: ffffffffffffffda RBX: 00007feb592f9ee0 RCX: 00007feb5a094b8a
[  265.638236][ T6584] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb592f9ea0
[  265.646219][ T6584] RBP: 0000200000000400 R08: 00007feb592f9ee0 R09: 0000000000000000
[  265.654200][ T6584] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  265.662191][ T6584] R13: 00007feb592f9ea0 R14: 00000000000125bb R15: 00002000000004c0
[  265.670186][ T6584]  </TASK>
[  265.673209][ T6583] CPU: 1 PID: 6583 Comm: syz.2.419 Not tainted syzkaller #0
[  265.673321][ T6584] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  265.680519][ T6583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  265.680534][ T6583] Call Trace:
[  265.680542][ T6583]  <TASK>
[  265.680550][ T6583]  dump_stack_lvl+0x188/0x250
[  265.693946][ T6584] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  265.703975][ T6583]  ? show_regs_print_info+0x20/0x20
[  265.704002][ T6583]  ? load_image+0x400/0x400
[  265.731374][ T6583]  sysfs_create_dir_ns+0x26a/0x290
[  265.736630][ T6583]  ? sysfs_warn_dup+0xa0/0xa0
[  265.741340][ T6583]  ? do_raw_spin_unlock+0x11d/0x230
[  265.746691][ T6583]  kobject_add_internal+0x6e0/0xd90
[  265.751963][ T6583]  kobject_init_and_add+0x128/0x190
[  265.757295][ T6583]  ? lockdep_softirqs_off+0x430/0x430
[  265.762703][ T6583]  ? kobject_add+0x230/0x230
[  265.767421][ T6583]  ? __init_swait_queue_head+0xa5/0x150
[  265.773112][ T6583]  gfs2_sys_fs_add+0x24f/0x4b0
[  265.778088][ T6583]  ? gfs2_recover_set+0x240/0x240
[  265.783247][ T6583]  ? snprintf+0xe5/0x140
[  265.787515][ T6583]  ? __free_pages+0x95/0x1a0
[  265.792322][ T6583]  ? vscnprintf+0x80/0x80
[  265.796834][ T6583]  gfs2_fill_super+0x120f/0x1f00
[  265.801822][ T6583]  ? gfs2_reconfigure+0xd30/0xd30
[  265.806980][ T6583]  ? sb_set_blocksize+0xa5/0xe0
[  265.811868][ T6583]  get_tree_bdev+0x3f1/0x610
[  265.816527][ T6583]  ? gfs2_reconfigure+0xd30/0xd30
[  265.821581][ T6583]  gfs2_get_tree+0x4d/0x1e0
[  265.826114][ T6583]  vfs_get_tree+0x88/0x270
[  265.830563][ T6583]  do_new_mount+0x24a/0xa40
[  265.835095][ T6583]  __se_sys_mount+0x2e3/0x3d0
[  265.839796][ T6583]  ? __x64_sys_mount+0xc0/0xc0
[  265.844644][ T6583]  ? lockdep_hardirqs_on+0x94/0x140
[  265.850138][ T6583]  ? __x64_sys_mount+0x1c/0xc0
[  265.854938][ T6583]  do_syscall_64+0x4c/0xa0
[  265.859370][ T6583]  ? clear_bhb_loop+0x30/0x80
[  265.864155][ T6583]  ? clear_bhb_loop+0x30/0x80
[  265.868853][ T6583]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  265.874863][ T6583] RIP: 0033:0x7f33d8f45b8a
[  265.879391][ T6583] 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
[  265.899015][ T6583] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  265.907447][ T6583] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  265.915427][ T6583] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  265.923615][ T6583] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  265.931697][ T6583] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  265.939692][ T6583] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  265.947710][ T6583]  </TASK>
[  265.950864][ T6583] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  265.964129][ T6583] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  265.973456][ T6589] loop0: detected capacity change from 0 to 32768
[  266.091982][ T6589] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  266.096687][ T6592] loop5: detected capacity change from 0 to 32768
[  266.099765][ T6589] CPU: 0 PID: 6589 Comm: syz.0.422 Not tainted syzkaller #0
[  266.113505][ T6589] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  266.123884][ T6589] Call Trace:
[  266.127195][ T6589]  <TASK>
[  266.130148][ T6589]  dump_stack_lvl+0x188/0x250
[  266.134853][ T6589]  ? show_regs_print_info+0x20/0x20
[  266.140091][ T6589]  ? load_image+0x400/0x400
[  266.144639][ T6589]  sysfs_create_dir_ns+0x26a/0x290
[  266.149981][ T6589]  ? sysfs_warn_dup+0xa0/0xa0
[  266.154840][ T6589]  ? do_raw_spin_unlock+0x11d/0x230
[  266.160151][ T6589]  kobject_add_internal+0x6e0/0xd90
[  266.165474][ T6589]  kobject_init_and_add+0x128/0x190
[  266.170712][ T6589]  ? lockdep_softirqs_off+0x430/0x430
[  266.176220][ T6589]  ? kobject_add+0x230/0x230
[  266.181114][ T6589]  ? __init_swait_queue_head+0xa5/0x150
[  266.186695][ T6589]  gfs2_sys_fs_add+0x24f/0x4b0
[  266.191575][ T6589]  ? gfs2_recover_set+0x240/0x240
[  266.196629][ T6589]  ? snprintf+0xe5/0x140
[  266.200892][ T6589]  ? __free_pages+0x95/0x1a0
[  266.205512][ T6589]  ? vscnprintf+0x80/0x80
[  266.209880][ T6589]  gfs2_fill_super+0x120f/0x1f00
[  266.214857][ T6589]  ? gfs2_reconfigure+0xd30/0xd30
[  266.220022][ T6589]  ? sb_set_blocksize+0xa5/0xe0
[  266.224904][ T6589]  get_tree_bdev+0x3f1/0x610
[  266.229519][ T6589]  ? gfs2_reconfigure+0xd30/0xd30
[  266.234575][ T6589]  gfs2_get_tree+0x4d/0x1e0
[  266.239398][ T6589]  vfs_get_tree+0x88/0x270
[  266.243845][ T6589]  do_new_mount+0x24a/0xa40
[  266.248477][ T6589]  __se_sys_mount+0x2e3/0x3d0
[  266.253200][ T6589]  ? __x64_sys_mount+0xc0/0xc0
[  266.258260][ T6589]  ? lockdep_hardirqs_on+0x94/0x140
[  266.263485][ T6589]  ? __x64_sys_mount+0x1c/0xc0
[  266.268361][ T6589]  do_syscall_64+0x4c/0xa0
[  266.272800][ T6589]  ? clear_bhb_loop+0x30/0x80
[  266.277495][ T6589]  ? clear_bhb_loop+0x30/0x80
[  266.282190][ T6589]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  266.288313][ T6589] RIP: 0033:0x7f4050558b8a
[  266.292751][ T6589] 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
[  266.312380][ T6589] RSP: 002b:00007f404f7bde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  266.320827][ T6589] RAX: ffffffffffffffda RBX: 00007f404f7bdee0 RCX: 00007f4050558b8a
[  266.328834][ T6589] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f404f7bdea0
[  266.337021][ T6589] RBP: 0000200000000400 R08: 00007f404f7bdee0 R09: 0000000000000000
[  266.345022][ T6589] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  266.353026][ T6589] R13: 00007f404f7bdea0 R14: 00000000000125bb R15: 00002000000004c0
[  266.361153][ T6589]  </TASK>
[  266.364422][ T6589] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  266.377730][ T6589] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  266.485743][ T6592] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  266.493191][ T6592] CPU: 1 PID: 6592 Comm: syz.5.423 Not tainted syzkaller #0
[  266.500514][ T6592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  266.510604][ T6592] Call Trace:
[  266.513908][ T6592]  <TASK>
[  266.516857][ T6592]  dump_stack_lvl+0x188/0x250
[  266.521572][ T6592]  ? show_regs_print_info+0x20/0x20
[  266.526812][ T6592]  ? load_image+0x400/0x400
[  266.531466][ T6592]  sysfs_create_dir_ns+0x26a/0x290
[  266.536624][ T6592]  ? sysfs_warn_dup+0xa0/0xa0
[  266.541431][ T6592]  ? do_raw_spin_unlock+0x11d/0x230
[  266.546752][ T6592]  kobject_add_internal+0x6e0/0xd90
[  266.552006][ T6592]  kobject_init_and_add+0x128/0x190
[  266.557232][ T6592]  ? lockdep_softirqs_off+0x430/0x430
[  266.562645][ T6592]  ? kobject_add+0x230/0x230
[  266.567263][ T6592]  ? __init_swait_queue_head+0xa5/0x150
[  266.572848][ T6592]  gfs2_sys_fs_add+0x24f/0x4b0
[  266.577639][ T6592]  ? gfs2_recover_set+0x240/0x240
[  266.582713][ T6592]  ? snprintf+0xe5/0x140
[  266.586988][ T6592]  ? __free_pages+0x95/0x1a0
[  266.591602][ T6592]  ? vscnprintf+0x80/0x80
[  266.596009][ T6592]  gfs2_fill_super+0x120f/0x1f00
[  266.600991][ T6592]  ? gfs2_reconfigure+0xd30/0xd30
[  266.606067][ T6592]  ? sb_set_blocksize+0xa5/0xe0
[  266.611044][ T6592]  get_tree_bdev+0x3f1/0x610
[  266.615662][ T6592]  ? gfs2_reconfigure+0xd30/0xd30
[  266.620712][ T6592]  gfs2_get_tree+0x4d/0x1e0
[  266.625253][ T6592]  vfs_get_tree+0x88/0x270
[  266.629694][ T6592]  do_new_mount+0x24a/0xa40
[  266.634233][ T6592]  __se_sys_mount+0x2e3/0x3d0
[  266.638934][ T6592]  ? __x64_sys_mount+0xc0/0xc0
[  266.643733][ T6592]  ? lockdep_hardirqs_on+0x94/0x140
[  266.648961][ T6592]  ? __x64_sys_mount+0x1c/0xc0
[  266.653760][ T6592]  do_syscall_64+0x4c/0xa0
[  266.658212][ T6592]  ? clear_bhb_loop+0x30/0x80
[  266.663005][ T6592]  ? clear_bhb_loop+0x30/0x80
[  266.667702][ T6592]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  266.673608][ T6592] RIP: 0033:0x7fdc19fe7b8a
[  266.678046][ T6592] 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
[  266.697763][ T6592] RSP: 002b:00007fdc1924ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  266.706312][ T6592] RAX: ffffffffffffffda RBX: 00007fdc1924cee0 RCX: 00007fdc19fe7b8a
[  266.714313][ T6592] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdc1924cea0
[  266.722431][ T6592] RBP: 0000200000000400 R08: 00007fdc1924cee0 R09: 0000000000000000
[  266.730519][ T6592] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  266.738517][ T6592] R13: 00007fdc1924cea0 R14: 00000000000125bb R15: 00002000000004c0
[  266.746533][ T6592]  </TASK>
[  266.749696][ T6592] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  266.762856][ T6592] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  267.118462][ T6602] loop2: detected capacity change from 0 to 32768
[  267.237746][ T6602] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  267.245269][ T6602] CPU: 0 PID: 6602 Comm: syz.2.426 Not tainted syzkaller #0
[  267.252670][ T6602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  267.262748][ T6602] Call Trace:
[  267.266045][ T6602]  <TASK>
[  267.269089][ T6602]  dump_stack_lvl+0x188/0x250
[  267.273928][ T6602]  ? show_regs_print_info+0x20/0x20
[  267.279147][ T6602]  ? load_image+0x400/0x400
[  267.283682][ T6602]  sysfs_create_dir_ns+0x26a/0x290
[  267.289082][ T6602]  ? sysfs_warn_dup+0xa0/0xa0
[  267.293815][ T6602]  ? do_raw_spin_unlock+0x11d/0x230
[  267.299052][ T6602]  kobject_add_internal+0x6e0/0xd90
[  267.304475][ T6602]  kobject_init_and_add+0x128/0x190
[  267.309707][ T6602]  ? lockdep_softirqs_off+0x430/0x430
[  267.315111][ T6602]  ? kobject_add+0x230/0x230
[  267.319737][ T6602]  ? __init_swait_queue_head+0xa5/0x150
[  267.325313][ T6602]  gfs2_sys_fs_add+0x24f/0x4b0
[  267.330106][ T6602]  ? gfs2_recover_set+0x240/0x240
[  267.335254][ T6602]  ? snprintf+0xe5/0x140
[  267.339617][ T6602]  ? __free_pages+0x95/0x1a0
[  267.344333][ T6602]  ? vscnprintf+0x80/0x80
[  267.348701][ T6602]  gfs2_fill_super+0x120f/0x1f00
[  267.353857][ T6602]  ? gfs2_reconfigure+0xd30/0xd30
[  267.358929][ T6602]  ? sb_set_blocksize+0xa5/0xe0
[  267.363897][ T6602]  get_tree_bdev+0x3f1/0x610
[  267.368523][ T6602]  ? gfs2_reconfigure+0xd30/0xd30
[  267.373576][ T6602]  gfs2_get_tree+0x4d/0x1e0
[  267.378113][ T6602]  vfs_get_tree+0x88/0x270
[  267.382560][ T6602]  do_new_mount+0x24a/0xa40
[  267.387283][ T6602]  __se_sys_mount+0x2e3/0x3d0
[  267.391992][ T6602]  ? __x64_sys_mount+0xc0/0xc0
[  267.396787][ T6602]  ? lockdep_hardirqs_on+0x94/0x140
[  267.402110][ T6602]  ? __x64_sys_mount+0x1c/0xc0
[  267.406910][ T6602]  do_syscall_64+0x4c/0xa0
[  267.411356][ T6602]  ? clear_bhb_loop+0x30/0x80
[  267.416078][ T6602]  ? clear_bhb_loop+0x30/0x80
[  267.420883][ T6602]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  267.426844][ T6602] RIP: 0033:0x7f33d8f45b8a
[  267.431289][ T6602] 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
[  267.436491][ T6605] loop3: detected capacity change from 0 to 32768
[  267.451184][ T6602] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  267.451219][ T6602] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  267.451235][ T6602] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  267.451249][ T6602] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  267.490321][ T6602] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  267.498333][ T6602] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  267.506358][ T6602]  </TASK>
[  267.510708][ T6602] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  267.524334][ T6602] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  267.627550][ T6605] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  267.635367][ T6605] CPU: 0 PID: 6605 Comm: syz.3.427 Not tainted syzkaller #0
[  267.642710][ T6605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  267.652889][ T6605] Call Trace:
[  267.656192][ T6605]  <TASK>
[  267.659148][ T6605]  dump_stack_lvl+0x188/0x250
[  267.663875][ T6605]  ? show_regs_print_info+0x20/0x20
[  267.669108][ T6605]  ? load_image+0x400/0x400
[  267.673671][ T6605]  sysfs_create_dir_ns+0x26a/0x290
[  267.678819][ T6605]  ? sysfs_warn_dup+0xa0/0xa0
[  267.683708][ T6605]  ? do_raw_spin_unlock+0x11d/0x230
[  267.689041][ T6605]  kobject_add_internal+0x6e0/0xd90
[  267.694282][ T6605]  kobject_init_and_add+0x128/0x190
[  267.699520][ T6605]  ? lockdep_softirqs_off+0x430/0x430
[  267.704942][ T6605]  ? kobject_add+0x230/0x230
[  267.709576][ T6605]  ? __init_swait_queue_head+0xa5/0x150
[  267.715159][ T6605]  gfs2_sys_fs_add+0x24f/0x4b0
[  267.719960][ T6605]  ? gfs2_recover_set+0x240/0x240
[  267.725024][ T6605]  ? snprintf+0xe5/0x140
[  267.729294][ T6605]  ? __free_pages+0x95/0x1a0
[  267.733911][ T6605]  ? vscnprintf+0x80/0x80
[  267.738275][ T6605]  gfs2_fill_super+0x120f/0x1f00
[  267.743269][ T6605]  ? gfs2_reconfigure+0xd30/0xd30
[  267.748597][ T6605]  ? sb_set_blocksize+0xa5/0xe0
[  267.753475][ T6605]  get_tree_bdev+0x3f1/0x610
[  267.758093][ T6605]  ? gfs2_reconfigure+0xd30/0xd30
[  267.763166][ T6605]  gfs2_get_tree+0x4d/0x1e0
[  267.767712][ T6605]  vfs_get_tree+0x88/0x270
[  267.772157][ T6605]  do_new_mount+0x24a/0xa40
[  267.776690][ T6605]  __se_sys_mount+0x2e3/0x3d0
[  267.781396][ T6605]  ? __x64_sys_mount+0xc0/0xc0
[  267.786185][ T6605]  ? lockdep_hardirqs_on+0x94/0x140
[  267.789734][ T6611] loop4: detected capacity change from 0 to 32768
[  267.791395][ T6605]  ? __x64_sys_mount+0x1c/0xc0
[  267.802601][ T6605]  do_syscall_64+0x4c/0xa0
[  267.807049][ T6605]  ? clear_bhb_loop+0x30/0x80
[  267.811843][ T6605]  ? clear_bhb_loop+0x30/0x80
[  267.816545][ T6605]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  267.822651][ T6605] RIP: 0033:0x7feb5a094b8a
[  267.827107][ T6605] 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
[  267.846756][ T6605] RSP: 002b:00007feb592f9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  267.855328][ T6605] RAX: ffffffffffffffda RBX: 00007feb592f9ee0 RCX: 00007feb5a094b8a
[  267.863330][ T6605] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb592f9ea0
[  267.871423][ T6605] RBP: 0000200000000400 R08: 00007feb592f9ee0 R09: 0000000000000000
[  267.879434][ T6605] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  267.887696][ T6605] R13: 00007feb592f9ea0 R14: 00000000000125bb R15: 00002000000004c0
[  267.895828][ T6605]  </TASK>
[  267.901141][ T6605] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  267.914403][ T6605] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  267.938002][ T6611] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  267.945715][ T6611] CPU: 1 PID: 6611 Comm: syz.4.424 Not tainted syzkaller #0
[  267.953030][ T6611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  267.963115][ T6611] Call Trace:
[  267.966414][ T6611]  <TASK>
[  267.969363][ T6611]  dump_stack_lvl+0x188/0x250
[  267.974070][ T6611]  ? show_regs_print_info+0x20/0x20
[  267.979385][ T6611]  ? load_image+0x400/0x400
[  267.983933][ T6611]  sysfs_create_dir_ns+0x26a/0x290
[  267.989078][ T6611]  ? sysfs_warn_dup+0xa0/0xa0
[  267.993781][ T6611]  ? do_raw_spin_unlock+0x11d/0x230
[  267.999038][ T6611]  kobject_add_internal+0x6e0/0xd90
[  268.004274][ T6611]  kobject_init_and_add+0x128/0x190
[  268.009500][ T6611]  ? lockdep_softirqs_off+0x430/0x430
[  268.014894][ T6611]  ? lockdep_hardirqs_on+0x94/0x140
[  268.020120][ T6611]  ? kobject_add+0x230/0x230
[  268.024750][ T6611]  ? __init_swait_queue_head+0xa5/0x150
[  268.030325][ T6611]  gfs2_sys_fs_add+0x24f/0x4b0
[  268.035130][ T6611]  ? gfs2_recover_set+0x240/0x240
[  268.040175][ T6611]  ? snprintf+0xe5/0x140
[  268.044452][ T6611]  ? __free_pages+0x95/0x1a0
[  268.049068][ T6611]  ? vscnprintf+0x80/0x80
[  268.053435][ T6611]  gfs2_fill_super+0x120f/0x1f00
[  268.058416][ T6611]  ? gfs2_reconfigure+0xd30/0xd30
[  268.063485][ T6611]  ? sb_set_blocksize+0xa5/0xe0
[  268.068371][ T6611]  get_tree_bdev+0x3f1/0x610
[  268.072985][ T6611]  ? gfs2_reconfigure+0xd30/0xd30
[  268.078047][ T6611]  gfs2_get_tree+0x4d/0x1e0
[  268.082703][ T6611]  vfs_get_tree+0x88/0x270
[  268.087149][ T6611]  do_new_mount+0x24a/0xa40
[  268.091692][ T6611]  __se_sys_mount+0x2e3/0x3d0
[  268.096756][ T6611]  ? __x64_sys_mount+0xc0/0xc0
[  268.101540][ T6611]  ? lockdep_hardirqs_on+0x94/0x140
[  268.106797][ T6611]  ? __x64_sys_mount+0x1c/0xc0
[  268.111765][ T6611]  do_syscall_64+0x4c/0xa0
[  268.116202][ T6611]  ? clear_bhb_loop+0x30/0x80
[  268.120895][ T6611]  ? clear_bhb_loop+0x30/0x80
[  268.125589][ T6611]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  268.131504][ T6611] RIP: 0033:0x7f20fe22cb8a
[  268.136062][ T6611] 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
[  268.155702][ T6611] RSP: 002b:00007f20fd491e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  268.164232][ T6611] RAX: ffffffffffffffda RBX: 00007f20fd491ee0 RCX: 00007f20fe22cb8a
[  268.172225][ T6611] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f20fd491ea0
[  268.180230][ T6611] RBP: 0000200000000400 R08: 00007f20fd491ee0 R09: 0000000000000000
[  268.188359][ T6611] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  268.196361][ T6611] R13: 00007f20fd491ea0 R14: 00000000000125bb R15: 00002000000004c0
[  268.204464][ T6611]  </TASK>
[  268.209103][ T6611] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  268.223049][ T6611] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  268.798915][ T6616] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  268.807381][ T6616] CPU: 0 PID: 6616 Comm: syz.2.430 Not tainted syzkaller #0
[  268.814810][ T6616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  268.825167][ T6616] Call Trace:
[  268.828467][ T6616]  <TASK>
[  268.831419][ T6616]  dump_stack_lvl+0x188/0x250
[  268.836310][ T6616]  ? show_regs_print_info+0x20/0x20
[  268.841538][ T6616]  ? load_image+0x400/0x400
[  268.846118][ T6616]  sysfs_create_dir_ns+0x26a/0x290
[  268.851454][ T6616]  ? sysfs_warn_dup+0xa0/0xa0
[  268.856336][ T6616]  ? do_raw_spin_unlock+0x11d/0x230
[  268.861561][ T6616]  kobject_add_internal+0x6e0/0xd90
[  268.866910][ T6616]  kobject_init_and_add+0x128/0x190
[  268.872271][ T6616]  ? lockdep_softirqs_off+0x430/0x430
[  268.877681][ T6616]  ? kobject_add+0x230/0x230
[  268.882487][ T6616]  ? __init_swait_queue_head+0xa5/0x150
[  268.888239][ T6616]  gfs2_sys_fs_add+0x24f/0x4b0
[  268.893100][ T6616]  ? gfs2_recover_set+0x240/0x240
[  268.898164][ T6616]  ? snprintf+0xe5/0x140
[  268.902438][ T6616]  ? __free_pages+0x95/0x1a0
[  268.907058][ T6616]  ? vscnprintf+0x80/0x80
[  268.911425][ T6616]  gfs2_fill_super+0x120f/0x1f00
[  268.916418][ T6616]  ? gfs2_reconfigure+0xd30/0xd30
[  268.921488][ T6616]  ? sb_set_blocksize+0xa5/0xe0
[  268.926451][ T6616]  get_tree_bdev+0x3f1/0x610
[  268.931160][ T6616]  ? gfs2_reconfigure+0xd30/0xd30
[  268.936206][ T6616]  gfs2_get_tree+0x4d/0x1e0
[  268.940732][ T6616]  vfs_get_tree+0x88/0x270
[  268.945182][ T6616]  do_new_mount+0x24a/0xa40
[  268.949721][ T6616]  __se_sys_mount+0x2e3/0x3d0
[  268.954423][ T6616]  ? __x64_sys_mount+0xc0/0xc0
[  268.959227][ T6616]  ? lockdep_hardirqs_on+0x94/0x140
[  268.964445][ T6616]  ? __x64_sys_mount+0x1c/0xc0
[  268.969240][ T6616]  do_syscall_64+0x4c/0xa0
[  268.973677][ T6616]  ? clear_bhb_loop+0x30/0x80
[  268.978369][ T6616]  ? clear_bhb_loop+0x30/0x80
[  268.983066][ T6616]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  268.988988][ T6616] RIP: 0033:0x7f33d8f45b8a
[  268.993606][ T6616] 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
[  269.012346][ T6618] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  269.013415][ T6616] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  269.029217][ T6616] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  269.037204][ T6616] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  269.045388][ T6616] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  269.053377][ T6616] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  269.061365][ T6616] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  269.069377][ T6616]  </TASK>
[  269.072400][ T6618] CPU: 1 PID: 6618 Comm: syz.3.431 Not tainted syzkaller #0
[  269.073920][ T6616] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  269.079713][ T6618] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  269.079727][ T6618] Call Trace:
[  269.079736][ T6618]  <TASK>
[  269.079743][ T6618]  dump_stack_lvl+0x188/0x250
[  269.079775][ T6618]  ? show_regs_print_info+0x20/0x20
[  269.079797][ T6618]  ? load_image+0x400/0x400
[  269.092943][ T6616] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  269.103076][ T6618]  sysfs_create_dir_ns+0x26a/0x290
[  269.103104][ T6618]  ? sysfs_warn_dup+0xa0/0xa0
[  269.140076][ T6618]  ? do_raw_spin_unlock+0x11d/0x230
[  269.145310][ T6618]  kobject_add_internal+0x6e0/0xd90
[  269.150539][ T6618]  kobject_init_and_add+0x128/0x190
[  269.155767][ T6618]  ? lockdep_softirqs_off+0x430/0x430
[  269.161176][ T6618]  ? kobject_add+0x230/0x230
[  269.165798][ T6618]  ? __init_swait_queue_head+0xa5/0x150
[  269.171381][ T6618]  gfs2_sys_fs_add+0x24f/0x4b0
[  269.176176][ T6618]  ? gfs2_recover_set+0x240/0x240
[  269.181222][ T6618]  ? snprintf+0xe5/0x140
[  269.184740][ T6612] set_capacity_and_notify: 2 callbacks suppressed
[  269.184753][ T6612] loop5: detected capacity change from 0 to 32768
[  269.185656][ T6618]  ? __free_pages+0x95/0x1a0
[  269.185685][ T6618]  ? vscnprintf+0x80/0x80
[  269.185715][ T6618]  gfs2_fill_super+0x120f/0x1f00
[  269.185751][ T6618]  ? gfs2_reconfigure+0xd30/0xd30
[  269.185789][ T6618]  ? sb_set_blocksize+0xa5/0xe0
[  269.185811][ T6618]  get_tree_bdev+0x3f1/0x610
[  269.226954][ T6618]  ? gfs2_reconfigure+0xd30/0xd30
[  269.232012][ T6618]  gfs2_get_tree+0x4d/0x1e0
[  269.236648][ T6618]  vfs_get_tree+0x88/0x270
[  269.241178][ T6618]  do_new_mount+0x24a/0xa40
[  269.245709][ T6618]  __se_sys_mount+0x2e3/0x3d0
[  269.250413][ T6618]  ? __x64_sys_mount+0xc0/0xc0
[  269.255199][ T6618]  ? lockdep_hardirqs_on+0x94/0x140
[  269.260423][ T6618]  ? __x64_sys_mount+0x1c/0xc0
[  269.265216][ T6618]  do_syscall_64+0x4c/0xa0
[  269.269656][ T6618]  ? clear_bhb_loop+0x30/0x80
[  269.274349][ T6618]  ? clear_bhb_loop+0x30/0x80
[  269.279073][ T6618]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  269.284985][ T6618] RIP: 0033:0x7feb5a094b8a
[  269.289416][ T6618] 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
[  269.309035][ T6618] RSP: 002b:00007feb592f9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  269.317586][ T6618] RAX: ffffffffffffffda RBX: 00007feb592f9ee0 RCX: 00007feb5a094b8a
[  269.325749][ T6618] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb592f9ea0
[  269.333811][ T6618] RBP: 0000200000000400 R08: 00007feb592f9ee0 R09: 0000000000000000
[  269.341781][ T6618] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  269.349756][ T6618] R13: 00007feb592f9ea0 R14: 00000000000125bb R15: 00002000000004c0
[  269.357743][ T6618]  </TASK>
[  269.360853][ T6618] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  269.374016][ T6618] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  269.404020][ T6612] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  269.831731][ T6613] loop0: detected capacity change from 0 to 32768
[  269.838491][ T6612] CPU: 1 PID: 6612 Comm: syz.5.429 Not tainted syzkaller #0
[  269.845815][ T6612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  269.856090][ T6612] Call Trace:
[  269.859392][ T6612]  <TASK>
[  269.862350][ T6612]  dump_stack_lvl+0x188/0x250
[  269.867061][ T6612]  ? show_regs_print_info+0x20/0x20
[  269.872289][ T6612]  ? load_image+0x400/0x400
[  269.876837][ T6612]  sysfs_create_dir_ns+0x26a/0x290
[  269.881969][ T6612]  ? sysfs_warn_dup+0xa0/0xa0
[  269.886753][ T6612]  ? do_raw_spin_unlock+0x11d/0x230
[  269.891777][ T6623] loop4: detected capacity change from 0 to 32768
[  269.891971][ T6612]  kobject_add_internal+0x6e0/0xd90
[  269.903843][ T6612]  kobject_init_and_add+0x128/0x190
[  269.909257][ T6612]  ? lockdep_softirqs_off+0x430/0x430
[  269.914647][ T6612]  ? kobject_add+0x230/0x230
[  269.919263][ T6612]  ? __init_swait_queue_head+0xa5/0x150
[  269.924834][ T6612]  gfs2_sys_fs_add+0x24f/0x4b0
2026/02/28 14:51:14 executed programs: 428
[  269.929817][ T6612]  ? gfs2_recover_set+0x240/0x240
[  269.934954][ T6612]  ? snprintf+0xe5/0x140
[  269.939216][ T6612]  ? __free_pages+0x95/0x1a0
[  269.943844][ T6612]  ? vscnprintf+0x80/0x80
[  269.948212][ T6612]  gfs2_fill_super+0x120f/0x1f00
[  269.953193][ T6612]  ? gfs2_reconfigure+0xd30/0xd30
[  269.958384][ T6612]  ? sb_set_blocksize+0xa5/0xe0
[  269.963260][ T6612]  get_tree_bdev+0x3f1/0x610
[  269.967885][ T6612]  ? gfs2_reconfigure+0xd30/0xd30
[  269.972944][ T6612]  gfs2_get_tree+0x4d/0x1e0
[  269.977475][ T6612]  vfs_get_tree+0x88/0x270
[  269.981920][ T6612]  do_new_mount+0x24a/0xa40
[  269.986460][ T6612]  __se_sys_mount+0x2e3/0x3d0
[  269.991401][ T6612]  ? __x64_sys_mount+0xc0/0xc0
[  269.996424][ T6612]  ? lockdep_hardirqs_on+0x94/0x140
[  270.001760][ T6612]  ? __x64_sys_mount+0x1c/0xc0
[  270.006659][ T6612]  do_syscall_64+0x4c/0xa0
[  270.011113][ T6612]  ? clear_bhb_loop+0x30/0x80
[  270.015819][ T6612]  ? clear_bhb_loop+0x30/0x80
[  270.020531][ T6612]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  270.026675][ T6612] RIP: 0033:0x7fdc19fe7b8a
[  270.031264][ T6612] 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
[  270.051052][ T6612] RSP: 002b:00007fdc1922be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.059590][ T6612] RAX: ffffffffffffffda RBX: 00007fdc1922bee0 RCX: 00007fdc19fe7b8a
[  270.067712][ T6612] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdc1922bea0
[  270.075719][ T6612] RBP: 0000200000000400 R08: 00007fdc1922bee0 R09: 0000000000000000
[  270.083721][ T6612] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  270.091718][ T6612] R13: 00007fdc1922bea0 R14: 00000000000125bb R15: 00002000000004c0
[  270.099851][ T6612]  </TASK>
[  270.306396][ T6629] loop2: detected capacity change from 0 to 32768
[  270.333610][ T6612] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.355407][ T6623] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.363063][ T6623] CPU: 0 PID: 6623 Comm: syz.4.432 Not tainted syzkaller #0
[  270.370386][ T6623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  270.380645][ T6623] Call Trace:
[  270.383956][ T6623]  <TASK>
[  270.386913][ T6623]  dump_stack_lvl+0x188/0x250
[  270.391634][ T6623]  ? show_regs_print_info+0x20/0x20
[  270.396867][ T6623]  ? load_image+0x400/0x400
[  270.401800][ T6623]  sysfs_create_dir_ns+0x26a/0x290
[  270.407119][ T6623]  ? sysfs_warn_dup+0xa0/0xa0
[  270.411825][ T6623]  ? do_raw_spin_unlock+0x11d/0x230
[  270.417068][ T6623]  kobject_add_internal+0x6e0/0xd90
[  270.422303][ T6623]  kobject_init_and_add+0x128/0x190
[  270.427756][ T6623]  ? lockdep_softirqs_off+0x430/0x430
[  270.433279][ T6623]  ? kobject_add+0x230/0x230
[  270.438358][ T6623]  ? __init_swait_queue_head+0xa5/0x150
[  270.443946][ T6623]  gfs2_sys_fs_add+0x24f/0x4b0
[  270.448828][ T6623]  ? gfs2_recover_set+0x240/0x240
[  270.454082][ T6623]  ? snprintf+0xe5/0x140
[  270.458350][ T6623]  ? __free_pages+0x95/0x1a0
[  270.462976][ T6623]  ? vscnprintf+0x80/0x80
[  270.467348][ T6623]  gfs2_fill_super+0x120f/0x1f00
[  270.472329][ T6623]  ? gfs2_reconfigure+0xd30/0xd30
[  270.477398][ T6623]  ? sb_set_blocksize+0xa5/0xe0
[  270.482285][ T6623]  get_tree_bdev+0x3f1/0x610
[  270.486908][ T6623]  ? gfs2_reconfigure+0xd30/0xd30
[  270.491953][ T6623]  gfs2_get_tree+0x4d/0x1e0
[  270.496479][ T6623]  vfs_get_tree+0x88/0x270
[  270.500926][ T6623]  do_new_mount+0x24a/0xa40
[  270.505473][ T6623]  __se_sys_mount+0x2e3/0x3d0
[  270.510184][ T6623]  ? __x64_sys_mount+0xc0/0xc0
[  270.514970][ T6623]  ? lockdep_hardirqs_on+0x94/0x140
[  270.520215][ T6623]  ? __x64_sys_mount+0x1c/0xc0
[  270.525104][ T6623]  do_syscall_64+0x4c/0xa0
[  270.529543][ T6623]  ? clear_bhb_loop+0x30/0x80
[  270.534242][ T6623]  ? clear_bhb_loop+0x30/0x80
[  270.538581][ T6612] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.538940][ T6623]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  270.551342][ T6623] RIP: 0033:0x7f20fe22cb8a
[  270.555790][ T6623] 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
[  270.575426][ T6623] RSP: 002b:00007f20fd491e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.583967][ T6623] RAX: ffffffffffffffda RBX: 00007f20fd491ee0 RCX: 00007f20fe22cb8a
[  270.592054][ T6623] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f20fd491ea0
[  270.600304][ T6623] RBP: 0000200000000400 R08: 00007f20fd491ee0 R09: 0000000000000000
[  270.608748][ T6623] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  270.616925][ T6623] R13: 00007f20fd491ea0 R14: 00000000000125bb R15: 00002000000004c0
[  270.624923][ T6623]  </TASK>
[  270.628116][ T6623] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.642242][ T6623] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.658888][ T6629] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.666379][ T6629] CPU: 0 PID: 6629 Comm: syz.2.434 Not tainted syzkaller #0
[  270.673705][ T6629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  270.683790][ T6629] Call Trace:
[  270.687101][ T6629]  <TASK>
[  270.690137][ T6629]  dump_stack_lvl+0x188/0x250
[  270.695040][ T6629]  ? show_regs_print_info+0x20/0x20
[  270.700448][ T6629]  ? load_image+0x400/0x400
[  270.704989][ T6629]  sysfs_create_dir_ns+0x26a/0x290
[  270.710108][ T6629]  ? sysfs_warn_dup+0xa0/0xa0
[  270.714792][ T6629]  ? do_raw_spin_unlock+0x11d/0x230
[  270.719999][ T6629]  kobject_add_internal+0x6e0/0xd90
[  270.725206][ T6629]  kobject_init_and_add+0x128/0x190
[  270.730408][ T6629]  ? lockdep_softirqs_off+0x430/0x430
[  270.735791][ T6629]  ? kobject_add+0x230/0x230
[  270.740400][ T6629]  ? __init_swait_queue_head+0xa5/0x150
[  270.746043][ T6629]  gfs2_sys_fs_add+0x24f/0x4b0
[  270.750811][ T6629]  ? gfs2_recover_set+0x240/0x240
[  270.755836][ T6629]  ? snprintf+0xe5/0x140
[  270.760081][ T6629]  ? __free_pages+0x95/0x1a0
[  270.764678][ T6629]  ? vscnprintf+0x80/0x80
[  270.769018][ T6629]  gfs2_fill_super+0x120f/0x1f00
[  270.773979][ T6629]  ? gfs2_reconfigure+0xd30/0xd30
[  270.779108][ T6629]  ? sb_set_blocksize+0xa5/0xe0
[  270.783962][ T6629]  get_tree_bdev+0x3f1/0x610
[  270.788555][ T6629]  ? gfs2_reconfigure+0xd30/0xd30
[  270.793774][ T6629]  gfs2_get_tree+0x4d/0x1e0
[  270.798327][ T6629]  vfs_get_tree+0x88/0x270
[  270.802780][ T6629]  do_new_mount+0x24a/0xa40
[  270.807313][ T6629]  __se_sys_mount+0x2e3/0x3d0
[  270.812008][ T6629]  ? __x64_sys_mount+0xc0/0xc0
[  270.816789][ T6629]  ? lockdep_hardirqs_on+0x94/0x140
[  270.822001][ T6629]  ? __x64_sys_mount+0x1c/0xc0
[  270.826794][ T6629]  do_syscall_64+0x4c/0xa0
[  270.831298][ T6629]  ? clear_bhb_loop+0x30/0x80
[  270.835983][ T6629]  ? clear_bhb_loop+0x30/0x80
[  270.840686][ T6629]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  270.846590][ T6629] RIP: 0033:0x7f33d8f45b8a
[  270.851027][ T6629] 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
[  270.870639][ T6629] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.879122][ T6629] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  270.887120][ T6629] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  270.895527][ T6629] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  270.903679][ T6629] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  270.911820][ T6629] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  270.919804][ T6629]  </TASK>
[  270.922993][ T6629] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.936171][ T6629] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.956908][ T6632] loop3: detected capacity change from 0 to 32768
[  270.997581][ T6632] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  271.005549][ T6632] CPU: 1 PID: 6632 Comm: syz.3.435 Not tainted syzkaller #0
[  271.012861][ T6632] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  271.023050][ T6632] Call Trace:
[  271.026367][ T6632]  <TASK>
[  271.029321][ T6632]  dump_stack_lvl+0x188/0x250
[  271.034029][ T6632]  ? show_regs_print_info+0x20/0x20
[  271.039253][ T6632]  ? load_image+0x400/0x400
[  271.043802][ T6632]  sysfs_create_dir_ns+0x26a/0x290
[  271.048947][ T6632]  ? sysfs_warn_dup+0xa0/0xa0
[  271.053745][ T6632]  ? do_raw_spin_unlock+0x11d/0x230
[  271.058973][ T6632]  kobject_add_internal+0x6e0/0xd90
[  271.064207][ T6632]  kobject_init_and_add+0x128/0x190
[  271.069519][ T6632]  ? lockdep_softirqs_off+0x430/0x430
[  271.074926][ T6632]  ? kobject_add+0x230/0x230
[  271.079549][ T6632]  ? __init_swait_queue_head+0xa5/0x150
[  271.085312][ T6632]  gfs2_sys_fs_add+0x24f/0x4b0
[  271.090112][ T6632]  ? gfs2_recover_set+0x240/0x240
[  271.095162][ T6632]  ? snprintf+0xe5/0x140
[  271.099426][ T6632]  ? __free_pages+0x95/0x1a0
[  271.104054][ T6632]  ? vscnprintf+0x80/0x80
[  271.108538][ T6632]  gfs2_fill_super+0x120f/0x1f00
[  271.113522][ T6632]  ? gfs2_reconfigure+0xd30/0xd30
[  271.118603][ T6632]  ? sb_set_blocksize+0xa5/0xe0
[  271.123599][ T6632]  get_tree_bdev+0x3f1/0x610
[  271.128221][ T6632]  ? gfs2_reconfigure+0xd30/0xd30
[  271.133277][ T6632]  gfs2_get_tree+0x4d/0x1e0
[  271.137820][ T6632]  vfs_get_tree+0x88/0x270
[  271.142272][ T6632]  do_new_mount+0x24a/0xa40
[  271.146814][ T6632]  __se_sys_mount+0x2e3/0x3d0
[  271.151520][ T6632]  ? __x64_sys_mount+0xc0/0xc0
[  271.156314][ T6632]  ? lockdep_hardirqs_on+0x94/0x140
[  271.161533][ T6632]  ? __x64_sys_mount+0x1c/0xc0
[  271.166325][ T6632]  do_syscall_64+0x4c/0xa0
[  271.170764][ T6632]  ? clear_bhb_loop+0x30/0x80
[  271.175470][ T6632]  ? clear_bhb_loop+0x30/0x80
[  271.180179][ T6632]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  271.186098][ T6632] RIP: 0033:0x7feb5a094b8a
[  271.190532][ T6632] 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
[  271.210351][ T6632] RSP: 002b:00007feb592f9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  271.218849][ T6632] RAX: ffffffffffffffda RBX: 00007feb592f9ee0 RCX: 00007feb5a094b8a
[  271.226855][ T6632] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb592f9ea0
[  271.234861][ T6632] RBP: 0000200000000400 R08: 00007feb592f9ee0 R09: 0000000000000000
[  271.242942][ T6632] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  271.251026][ T6632] R13: 00007feb592f9ea0 R14: 00000000000125bb R15: 00002000000004c0
[  271.259130][ T6632]  </TASK>
[  271.263383][ T6632] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  271.276556][ T6632] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  271.600794][ T6637] loop4: detected capacity change from 0 to 32768
[  272.015260][ T6639] loop2: detected capacity change from 0 to 32768
[  272.024605][ T6637] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.025156][ T6639] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.032314][ T6637] CPU: 0 PID: 6637 Comm: syz.4.437 Not tainted syzkaller #0
[  272.046879][ T6637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  272.057025][ T6637] Call Trace:
[  272.060308][ T6637]  <TASK>
[  272.063243][ T6637]  dump_stack_lvl+0x188/0x250
[  272.067939][ T6637]  ? show_regs_print_info+0x20/0x20
[  272.073151][ T6637]  ? load_image+0x400/0x400
[  272.077677][ T6637]  sysfs_create_dir_ns+0x26a/0x290
[  272.082882][ T6637]  ? sysfs_warn_dup+0xa0/0xa0
[  272.087565][ T6637]  ? do_raw_spin_unlock+0x11d/0x230
[  272.092772][ T6637]  kobject_add_internal+0x6e0/0xd90
[  272.097981][ T6637]  kobject_init_and_add+0x128/0x190
[  272.103181][ T6637]  ? lockdep_softirqs_off+0x430/0x430
[  272.108562][ T6637]  ? kobject_add+0x230/0x230
[  272.113154][ T6637]  ? __init_swait_queue_head+0xa5/0x150
[  272.118709][ T6637]  gfs2_sys_fs_add+0x24f/0x4b0
[  272.123547][ T6637]  ? gfs2_recover_set+0x240/0x240
[  272.128585][ T6637]  ? snprintf+0xe5/0x140
[  272.132871][ T6637]  ? __free_pages+0x95/0x1a0
[  272.137473][ T6637]  ? vscnprintf+0x80/0x80
[  272.141845][ T6637]  gfs2_fill_super+0x120f/0x1f00
[  272.146881][ T6637]  ? gfs2_reconfigure+0xd30/0xd30
[  272.151920][ T6637]  ? sb_set_blocksize+0xa5/0xe0
[  272.156793][ T6637]  get_tree_bdev+0x3f1/0x610
[  272.161396][ T6637]  ? gfs2_reconfigure+0xd30/0xd30
[  272.166423][ T6637]  gfs2_get_tree+0x4d/0x1e0
[  272.170934][ T6637]  vfs_get_tree+0x88/0x270
[  272.175356][ T6637]  do_new_mount+0x24a/0xa40
[  272.179964][ T6637]  __se_sys_mount+0x2e3/0x3d0
[  272.184678][ T6637]  ? __x64_sys_mount+0xc0/0xc0
[  272.189625][ T6637]  ? lockdep_hardirqs_on+0x94/0x140
[  272.194845][ T6637]  ? __x64_sys_mount+0x1c/0xc0
[  272.199624][ T6637]  do_syscall_64+0x4c/0xa0
[  272.204037][ T6637]  ? clear_bhb_loop+0x30/0x80
[  272.208802][ T6637]  ? clear_bhb_loop+0x30/0x80
[  272.213483][ T6637]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  272.219469][ T6637] RIP: 0033:0x7f20fe22cb8a
[  272.223896][ T6637] 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
[  272.243679][ T6637] RSP: 002b:00007f20fd491e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.252101][ T6637] RAX: ffffffffffffffda RBX: 00007f20fd491ee0 RCX: 00007f20fe22cb8a
[  272.260077][ T6637] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f20fd491ea0
[  272.268250][ T6637] RBP: 0000200000000400 R08: 00007f20fd491ee0 R09: 0000000000000000
[  272.276236][ T6637] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  272.284300][ T6637] R13: 00007f20fd491ea0 R14: 00000000000125bb R15: 00002000000004c0
[  272.292291][ T6637]  </TASK>
[  272.295411][ T6639] CPU: 1 PID: 6639 Comm: syz.2.439 Not tainted syzkaller #0
[  272.295546][ T6637] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  272.302806][ T6639] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  272.315930][ T6637] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  272.326035][ T6639] Call Trace:
[  272.326044][ T6639]  <TASK>
[  272.326053][ T6639]  dump_stack_lvl+0x188/0x250
[  272.343584][ T6639]  ? show_regs_print_info+0x20/0x20
[  272.348815][ T6639]  ? load_image+0x400/0x400
[  272.353366][ T6639]  sysfs_create_dir_ns+0x26a/0x290
[  272.358505][ T6639]  ? sysfs_warn_dup+0xa0/0xa0
[  272.363218][ T6639]  ? do_raw_spin_unlock+0x11d/0x230
[  272.368451][ T6639]  kobject_add_internal+0x6e0/0xd90
[  272.373692][ T6639]  kobject_init_and_add+0x128/0x190
[  272.379020][ T6639]  ? lockdep_softirqs_off+0x430/0x430
[  272.384431][ T6639]  ? kobject_add+0x230/0x230
[  272.389053][ T6639]  ? __init_swait_queue_head+0xa5/0x150
[  272.394681][ T6639]  gfs2_sys_fs_add+0x24f/0x4b0
[  272.399473][ T6639]  ? gfs2_recover_set+0x240/0x240
[  272.404526][ T6639]  ? snprintf+0xe5/0x140
[  272.408808][ T6639]  ? __free_pages+0x95/0x1a0
[  272.413518][ T6639]  ? vscnprintf+0x80/0x80
[  272.417886][ T6639]  gfs2_fill_super+0x120f/0x1f00
[  272.422877][ T6639]  ? gfs2_reconfigure+0xd30/0xd30
[  272.427949][ T6639]  ? sb_set_blocksize+0xa5/0xe0
[  272.432847][ T6639]  get_tree_bdev+0x3f1/0x610
[  272.437465][ T6639]  ? gfs2_reconfigure+0xd30/0xd30
[  272.442524][ T6639]  gfs2_get_tree+0x4d/0x1e0
[  272.447154][ T6639]  vfs_get_tree+0x88/0x270
[  272.451704][ T6639]  do_new_mount+0x24a/0xa40
[  272.456248][ T6639]  __se_sys_mount+0x2e3/0x3d0
[  272.461054][ T6639]  ? __x64_sys_mount+0xc0/0xc0
[  272.466044][ T6639]  ? lockdep_hardirqs_on+0x94/0x140
[  272.471274][ T6639]  ? __x64_sys_mount+0x1c/0xc0
[  272.476075][ T6639]  do_syscall_64+0x4c/0xa0
[  272.480515][ T6639]  ? clear_bhb_loop+0x30/0x80
[  272.485300][ T6639]  ? clear_bhb_loop+0x30/0x80
[  272.489994][ T6639]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  272.495909][ T6639] RIP: 0033:0x7f33d8f45b8a
[  272.500364][ T6639] 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
[  272.520169][ T6639] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.528811][ T6639] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  272.536909][ T6639] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  272.545008][ T6639] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  272.553023][ T6639] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  272.561021][ T6639] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  272.569038][ T6639]  </TASK>
[  272.574727][ T6639] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  272.588085][ T6639] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  272.648808][ T6641] loop3: detected capacity change from 0 to 32768
[  272.659245][ T6641] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.667191][ T6641] CPU: 0 PID: 6641 Comm: syz.3.440 Not tainted syzkaller #0
[  272.674691][ T6641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  272.685004][ T6641] Call Trace:
[  272.688305][ T6641]  <TASK>
[  272.691264][ T6641]  dump_stack_lvl+0x188/0x250
[  272.695980][ T6641]  ? show_regs_print_info+0x20/0x20
[  272.701211][ T6641]  ? load_image+0x400/0x400
[  272.705750][ T6641]  sysfs_create_dir_ns+0x26a/0x290
[  272.710888][ T6641]  ? sysfs_warn_dup+0xa0/0xa0
[  272.715589][ T6641]  ? do_raw_spin_unlock+0x11d/0x230
[  272.720821][ T6641]  kobject_add_internal+0x6e0/0xd90
[  272.726057][ T6641]  kobject_init_and_add+0x128/0x190
[  272.731275][ T6641]  ? lockdep_softirqs_off+0x430/0x430
[  272.736674][ T6641]  ? kobject_add+0x230/0x230
[  272.741381][ T6641]  ? __init_swait_queue_head+0xa5/0x150
[  272.747040][ T6641]  gfs2_sys_fs_add+0x24f/0x4b0
[  272.751831][ T6641]  ? gfs2_recover_set+0x240/0x240
[  272.756878][ T6641]  ? snprintf+0xe5/0x140
[  272.761136][ T6641]  ? __free_pages+0x95/0x1a0
[  272.766029][ T6641]  ? vscnprintf+0x80/0x80
[  272.770384][ T6641]  gfs2_fill_super+0x120f/0x1f00
[  272.775355][ T6641]  ? gfs2_reconfigure+0xd30/0xd30
[  272.780609][ T6641]  ? sb_set_blocksize+0xa5/0xe0
[  272.785501][ T6641]  get_tree_bdev+0x3f1/0x610
[  272.790140][ T6641]  ? gfs2_reconfigure+0xd30/0xd30
[  272.795203][ T6641]  gfs2_get_tree+0x4d/0x1e0
[  272.799751][ T6641]  vfs_get_tree+0x88/0x270
[  272.804207][ T6641]  do_new_mount+0x24a/0xa40
[  272.808747][ T6641]  __se_sys_mount+0x2e3/0x3d0
[  272.813465][ T6641]  ? __x64_sys_mount+0xc0/0xc0
[  272.818271][ T6641]  ? lockdep_hardirqs_on+0x94/0x140
[  272.823492][ T6641]  ? __x64_sys_mount+0x1c/0xc0
[  272.828295][ T6641]  do_syscall_64+0x4c/0xa0
[  272.832742][ T6641]  ? clear_bhb_loop+0x30/0x80
[  272.837445][ T6641]  ? clear_bhb_loop+0x30/0x80
[  272.842152][ T6641]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  272.848073][ T6641] RIP: 0033:0x7feb5a094b8a
[  272.852601][ T6641] 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
[  272.872324][ T6641] RSP: 002b:00007feb592f9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.880903][ T6641] RAX: ffffffffffffffda RBX: 00007feb592f9ee0 RCX: 00007feb5a094b8a
[  272.888906][ T6641] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb592f9ea0
[  272.896913][ T6641] RBP: 0000200000000400 R08: 00007feb592f9ee0 R09: 0000000000000000
[  272.905000][ T6641] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  272.913003][ T6641] R13: 00007feb592f9ea0 R14: 00000000000125bb R15: 00002000000004c0
[  272.921018][ T6641]  </TASK>
[  272.925015][ T6641] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  272.938423][ T6641] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  274.528150][ T6655] loop4: detected capacity change from 0 to 32768
[  274.975182][ T6659] loop5: detected capacity change from 0 to 32768
[  274.988391][ T6655] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  274.995887][ T6655] CPU: 1 PID: 6655 Comm: syz.4.446 Not tainted syzkaller #0
[  275.003198][ T6655] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  275.013633][ T6655] Call Trace:
[  275.017021][ T6655]  <TASK>
[  275.019965][ T6655]  dump_stack_lvl+0x188/0x250
[  275.024664][ T6655]  ? show_regs_print_info+0x20/0x20
[  275.029891][ T6655]  ? load_image+0x400/0x400
[  275.034425][ T6655]  sysfs_create_dir_ns+0x26a/0x290
[  275.039557][ T6655]  ? sysfs_warn_dup+0xa0/0xa0
[  275.044261][ T6655]  ? do_raw_spin_unlock+0x11d/0x230
[  275.049490][ T6655]  kobject_add_internal+0x6e0/0xd90
[  275.054722][ T6655]  kobject_init_and_add+0x128/0x190
[  275.060041][ T6655]  ? lockdep_softirqs_off+0x430/0x430
[  275.065443][ T6655]  ? kobject_add+0x230/0x230
[  275.070068][ T6655]  ? __init_swait_queue_head+0xa5/0x150
[  275.075805][ T6655]  gfs2_sys_fs_add+0x24f/0x4b0
[  275.080599][ T6655]  ? gfs2_recover_set+0x240/0x240
[  275.085782][ T6655]  ? snprintf+0xe5/0x140
[  275.090227][ T6655]  ? __free_pages+0x95/0x1a0
[  275.094938][ T6655]  ? vscnprintf+0x80/0x80
[  275.099314][ T6655]  gfs2_fill_super+0x120f/0x1f00
[  275.104375][ T6655]  ? gfs2_reconfigure+0xd30/0xd30
[  275.109536][ T6655]  ? sb_set_blocksize+0xa5/0xe0
[  275.114408][ T6655]  get_tree_bdev+0x3f1/0x610
[  275.119023][ T6655]  ? gfs2_reconfigure+0xd30/0xd30
[  275.124161][ T6655]  gfs2_get_tree+0x4d/0x1e0
[  275.128695][ T6655]  vfs_get_tree+0x88/0x270
[  275.133146][ T6655]  do_new_mount+0x24a/0xa40
[  275.137683][ T6655]  __se_sys_mount+0x2e3/0x3d0
[  275.142391][ T6655]  ? __x64_sys_mount+0xc0/0xc0
[  275.147196][ T6655]  ? lockdep_hardirqs_on+0x94/0x140
[  275.152525][ T6655]  ? __x64_sys_mount+0x1c/0xc0
[  275.157311][ T6655]  do_syscall_64+0x4c/0xa0
[  275.161754][ T6655]  ? clear_bhb_loop+0x30/0x80
[  275.166455][ T6655]  ? clear_bhb_loop+0x30/0x80
[  275.171159][ T6655]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  275.177072][ T6655] RIP: 0033:0x7f20fe22cb8a
[  275.181506][ T6655] 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
[  275.201566][ T6655] RSP: 002b:00007f20fd491e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  275.210360][ T6655] RAX: ffffffffffffffda RBX: 00007f20fd491ee0 RCX: 00007f20fe22cb8a
[  275.218357][ T6655] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f20fd491ea0
[  275.226353][ T6655] RBP: 0000200000000400 R08: 00007f20fd491ee0 R09: 0000000000000000
[  275.234430][ T6655] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  275.242519][ T6655] R13: 00007f20fd491ea0 R14: 00000000000125bb R15: 00002000000004c0
[  275.250527][ T6655]  </TASK>
[  275.254882][ T6655] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  275.268906][ T6655] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/02/28 14:51:19 executed programs: 445
[  275.306347][ T6659] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  275.314086][ T6659] CPU: 1 PID: 6659 Comm: syz.5.438 Not tainted syzkaller #0
[  275.321552][ T6659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  275.331813][ T6659] Call Trace:
[  275.335120][ T6659]  <TASK>
[  275.338156][ T6659]  dump_stack_lvl+0x188/0x250
[  275.342990][ T6659]  ? show_regs_print_info+0x20/0x20
[  275.348236][ T6659]  ? load_image+0x400/0x400
[  275.352783][ T6659]  sysfs_create_dir_ns+0x26a/0x290
[  275.357930][ T6659]  ? sysfs_warn_dup+0xa0/0xa0
[  275.362783][ T6659]  ? do_raw_spin_unlock+0x11d/0x230
[  275.368116][ T6659]  kobject_add_internal+0x6e0/0xd90
[  275.373460][ T6659]  kobject_init_and_add+0x128/0x190
[  275.378807][ T6659]  ? lockdep_softirqs_off+0x430/0x430
[  275.384242][ T6659]  ? kobject_add+0x230/0x230
[  275.388866][ T6659]  ? __init_swait_queue_head+0xa5/0x150
[  275.394451][ T6659]  gfs2_sys_fs_add+0x24f/0x4b0
[  275.399244][ T6659]  ? gfs2_recover_set+0x240/0x240
[  275.404291][ T6659]  ? snprintf+0xe5/0x140
[  275.408651][ T6659]  ? __free_pages+0x95/0x1a0
[  275.413287][ T6659]  ? vscnprintf+0x80/0x80
[  275.417920][ T6659]  gfs2_fill_super+0x120f/0x1f00
[  275.422905][ T6659]  ? gfs2_reconfigure+0xd30/0xd30
[  275.427976][ T6659]  ? sb_set_blocksize+0xa5/0xe0
[  275.432858][ T6659]  get_tree_bdev+0x3f1/0x610
[  275.437473][ T6659]  ? gfs2_reconfigure+0xd30/0xd30
[  275.442621][ T6659]  gfs2_get_tree+0x4d/0x1e0
[  275.447240][ T6659]  vfs_get_tree+0x88/0x270
[  275.451702][ T6659]  do_new_mount+0x24a/0xa40
[  275.456243][ T6659]  __se_sys_mount+0x2e3/0x3d0
[  275.461035][ T6659]  ? __x64_sys_mount+0xc0/0xc0
[  275.465828][ T6659]  ? lockdep_hardirqs_on+0x94/0x140
[  275.471052][ T6659]  ? __x64_sys_mount+0x1c/0xc0
[  275.476040][ T6659]  do_syscall_64+0x4c/0xa0
[  275.480488][ T6659]  ? clear_bhb_loop+0x30/0x80
[  275.485192][ T6659]  ? clear_bhb_loop+0x30/0x80
[  275.490046][ T6659]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  275.495967][ T6659] RIP: 0033:0x7fdc19fe7b8a
[  275.500410][ T6659] 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
[  275.520128][ T6659] RSP: 002b:00007fdc1924ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  275.528848][ T6659] RAX: ffffffffffffffda RBX: 00007fdc1924cee0 RCX: 00007fdc19fe7b8a
[  275.536849][ T6659] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdc1924cea0
[  275.544868][ T6659] RBP: 0000200000000400 R08: 00007fdc1924cee0 R09: 0000000000000000
[  275.552868][ T6659] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  275.560868][ T6659] R13: 00007fdc1924cea0 R14: 00000000000125bb R15: 00002000000004c0
[  275.568884][ T6659]  </TASK>
[  275.572881][ T6659] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  275.586675][ T6659] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  275.782074][ T6666] loop2: detected capacity change from 0 to 32768
[  275.907003][ T6666] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  275.914757][ T6666] CPU: 0 PID: 6666 Comm: syz.2.451 Not tainted syzkaller #0
[  275.922175][ T6666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  275.932264][ T6666] Call Trace:
[  275.935571][ T6666]  <TASK>
[  275.938647][ T6666]  dump_stack_lvl+0x188/0x250
[  275.943353][ T6666]  ? show_regs_print_info+0x20/0x20
[  275.948574][ T6666]  ? load_image+0x400/0x400
[  275.953121][ T6666]  sysfs_create_dir_ns+0x26a/0x290
[  275.958272][ T6666]  ? sysfs_warn_dup+0xa0/0xa0
[  275.962981][ T6666]  ? do_raw_spin_unlock+0x11d/0x230
[  275.968300][ T6666]  kobject_add_internal+0x6e0/0xd90
[  275.973542][ T6666]  kobject_init_and_add+0x128/0x190
[  275.978769][ T6666]  ? lockdep_softirqs_off+0x430/0x430
[  275.984193][ T6666]  ? kobject_add+0x230/0x230
[  275.988834][ T6666]  ? __init_swait_queue_head+0xa5/0x150
[  275.994429][ T6666]  gfs2_sys_fs_add+0x24f/0x4b0
[  275.999239][ T6666]  ? gfs2_recover_set+0x240/0x240
[  276.004303][ T6666]  ? snprintf+0xe5/0x140
[  276.008588][ T6666]  ? __free_pages+0x95/0x1a0
[  276.013211][ T6666]  ? vscnprintf+0x80/0x80
[  276.017578][ T6666]  gfs2_fill_super+0x120f/0x1f00
[  276.022565][ T6666]  ? gfs2_reconfigure+0xd30/0xd30
[  276.027676][ T6666]  ? sb_set_blocksize+0xa5/0xe0
[  276.032556][ T6666]  get_tree_bdev+0x3f1/0x610
[  276.037278][ T6666]  ? gfs2_reconfigure+0xd30/0xd30
[  276.042329][ T6666]  gfs2_get_tree+0x4d/0x1e0
[  276.046859][ T6666]  vfs_get_tree+0x88/0x270
[  276.051304][ T6666]  do_new_mount+0x24a/0xa40
[  276.055838][ T6666]  __se_sys_mount+0x2e3/0x3d0
[  276.060546][ T6666]  ? __x64_sys_mount+0xc0/0xc0
[  276.065375][ T6666]  ? lockdep_hardirqs_on+0x94/0x140
[  276.070774][ T6666]  ? __x64_sys_mount+0x1c/0xc0
[  276.075649][ T6666]  do_syscall_64+0x4c/0xa0
[  276.080103][ T6666]  ? clear_bhb_loop+0x30/0x80
[  276.084803][ T6666]  ? clear_bhb_loop+0x30/0x80
[  276.089501][ T6666]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  276.095418][ T6666] RIP: 0033:0x7f33d8f45b8a
[  276.098022][ T6669] loop4: detected capacity change from 0 to 32768
[  276.099850][ T6666] 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
[  276.126162][ T6666] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.134625][ T6666] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  276.142622][ T6666] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  276.150809][ T6666] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  276.158808][ T6666] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  276.166810][ T6666] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  276.174969][ T6666]  </TASK>
[  276.180829][ T6666] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  276.194105][ T6666] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  276.321969][ T6669] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  276.329737][ T6669] CPU: 0 PID: 6669 Comm: syz.4.453 Not tainted syzkaller #0
[  276.337054][ T6669] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  276.347165][ T6669] Call Trace:
[  276.350481][ T6669]  <TASK>
[  276.353432][ T6669]  dump_stack_lvl+0x188/0x250
[  276.358143][ T6669]  ? show_regs_print_info+0x20/0x20
[  276.363385][ T6669]  ? load_image+0x400/0x400
[  276.368035][ T6669]  sysfs_create_dir_ns+0x26a/0x290
[  276.373185][ T6669]  ? sysfs_warn_dup+0xa0/0xa0
[  276.377908][ T6669]  ? do_raw_spin_unlock+0x11d/0x230
[  276.383143][ T6669]  kobject_add_internal+0x6e0/0xd90
[  276.388467][ T6669]  kobject_init_and_add+0x128/0x190
[  276.393793][ T6669]  ? lockdep_softirqs_off+0x430/0x430
[  276.399718][ T6669]  ? kobject_add+0x230/0x230
[  276.404550][ T6669]  ? __init_swait_queue_head+0xa5/0x150
[  276.410131][ T6669]  gfs2_sys_fs_add+0x24f/0x4b0
[  276.414921][ T6669]  ? gfs2_recover_set+0x240/0x240
[  276.419973][ T6669]  ? snprintf+0xe5/0x140
[  276.424242][ T6669]  ? __free_pages+0x95/0x1a0
[  276.429136][ T6669]  ? vscnprintf+0x80/0x80
[  276.433673][ T6669]  gfs2_fill_super+0x120f/0x1f00
[  276.438661][ T6669]  ? gfs2_reconfigure+0xd30/0xd30
[  276.443819][ T6669]  ? sb_set_blocksize+0xa5/0xe0
[  276.448787][ T6669]  get_tree_bdev+0x3f1/0x610
[  276.450246][ T6673] loop0: detected capacity change from 0 to 32768
[  276.453397][ T6669]  ? gfs2_reconfigure+0xd30/0xd30
[  276.464848][ T6669]  gfs2_get_tree+0x4d/0x1e0
[  276.469492][ T6669]  vfs_get_tree+0x88/0x270
[  276.473941][ T6669]  do_new_mount+0x24a/0xa40
[  276.478578][ T6669]  __se_sys_mount+0x2e3/0x3d0
[  276.483378][ T6669]  ? __x64_sys_mount+0xc0/0xc0
[  276.488266][ T6669]  ? lockdep_hardirqs_on+0x94/0x140
[  276.493497][ T6669]  ? __x64_sys_mount+0x1c/0xc0
[  276.498296][ T6669]  do_syscall_64+0x4c/0xa0
[  276.502741][ T6669]  ? clear_bhb_loop+0x30/0x80
[  276.507435][ T6669]  ? clear_bhb_loop+0x30/0x80
[  276.512316][ T6669]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  276.518234][ T6669] RIP: 0033:0x7f20fe22cb8a
[  276.522685][ T6669] 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
[  276.542404][ T6669] RSP: 002b:00007f20fd491e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.550875][ T6669] RAX: ffffffffffffffda RBX: 00007f20fd491ee0 RCX: 00007f20fe22cb8a
[  276.558874][ T6669] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f20fd491ea0
[  276.566957][ T6669] RBP: 0000200000000400 R08: 00007f20fd491ee0 R09: 0000000000000000
[  276.575051][ T6669] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  276.583054][ T6669] R13: 00007f20fd491ea0 R14: 00000000000125bb R15: 00002000000004c0
[  276.591081][ T6669]  </TASK>
[  276.595851][ T6669] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  276.610029][ T6669] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  276.698920][ T6673] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  276.706438][ T6673] CPU: 1 PID: 6673 Comm: syz.0.454 Not tainted syzkaller #0
[  276.713768][ T6673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  276.724148][ T6673] Call Trace:
[  276.727626][ T6673]  <TASK>
[  276.730576][ T6673]  dump_stack_lvl+0x188/0x250
[  276.735456][ T6673]  ? show_regs_print_info+0x20/0x20
[  276.740687][ T6673]  ? load_image+0x400/0x400
[  276.745499][ T6673]  sysfs_create_dir_ns+0x26a/0x290
[  276.750637][ T6673]  ? sysfs_warn_dup+0xa0/0xa0
[  276.755334][ T6673]  ? do_raw_spin_unlock+0x11d/0x230
[  276.760659][ T6673]  kobject_add_internal+0x6e0/0xd90
[  276.765899][ T6673]  kobject_init_and_add+0x128/0x190
[  276.771127][ T6673]  ? lockdep_softirqs_off+0x430/0x430
[  276.776530][ T6673]  ? kobject_add+0x230/0x230
[  276.781288][ T6673]  ? __init_swait_queue_head+0xa5/0x150
[  276.786871][ T6673]  gfs2_sys_fs_add+0x24f/0x4b0
[  276.791663][ T6673]  ? gfs2_recover_set+0x240/0x240
[  276.796739][ T6673]  ? snprintf+0xe5/0x140
[  276.801005][ T6673]  ? __free_pages+0x95/0x1a0
[  276.805622][ T6673]  ? vscnprintf+0x80/0x80
[  276.809992][ T6673]  gfs2_fill_super+0x120f/0x1f00
[  276.814963][ T6673]  ? gfs2_reconfigure+0xd30/0xd30
[  276.820029][ T6673]  ? sb_set_blocksize+0xa5/0xe0
[  276.824905][ T6673]  get_tree_bdev+0x3f1/0x610
[  276.829528][ T6673]  ? gfs2_reconfigure+0xd30/0xd30
[  276.834599][ T6673]  gfs2_get_tree+0x4d/0x1e0
[  276.839134][ T6673]  vfs_get_tree+0x88/0x270
[  276.843764][ T6673]  do_new_mount+0x24a/0xa40
[  276.848307][ T6673]  __se_sys_mount+0x2e3/0x3d0
[  276.853013][ T6673]  ? __x64_sys_mount+0xc0/0xc0
[  276.857973][ T6673]  ? lockdep_hardirqs_on+0x94/0x140
[  276.863198][ T6673]  ? __x64_sys_mount+0x1c/0xc0
[  276.868089][ T6673]  do_syscall_64+0x4c/0xa0
[  276.872605][ T6673]  ? clear_bhb_loop+0x30/0x80
[  276.877295][ T6673]  ? clear_bhb_loop+0x30/0x80
[  276.882025][ T6673]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  276.888048][ T6673] RIP: 0033:0x7f4050558b8a
[  276.892491][ T6673] 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
[  276.912232][ T6673] RSP: 002b:00007f404f7bde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.920693][ T6673] RAX: ffffffffffffffda RBX: 00007f404f7bdee0 RCX: 00007f4050558b8a
[  276.928708][ T6673] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f404f7bdea0
[  276.936769][ T6673] RBP: 0000200000000400 R08: 00007f404f7bdee0 R09: 0000000000000000
[  276.944771][ T6673] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  276.952888][ T6673] R13: 00007f404f7bdea0 R14: 00000000000125bb R15: 00002000000004c0
[  276.960909][ T6673]  </TASK>
[  276.965276][ T6673] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  276.978831][ T6673] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  277.034999][ T6675] loop2: detected capacity change from 0 to 32768
[  277.116364][ T6675] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  277.123977][ T6675] CPU: 0 PID: 6675 Comm: syz.2.455 Not tainted syzkaller #0
[  277.131481][ T6675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  277.141599][ T6675] Call Trace:
[  277.144902][ T6675]  <TASK>
[  277.147859][ T6675]  dump_stack_lvl+0x188/0x250
[  277.152661][ T6675]  ? show_regs_print_info+0x20/0x20
[  277.157888][ T6675]  ? load_image+0x400/0x400
[  277.162438][ T6675]  sysfs_create_dir_ns+0x26a/0x290
[  277.167568][ T6675]  ? sysfs_warn_dup+0xa0/0xa0
[  277.172267][ T6675]  ? do_raw_spin_unlock+0x11d/0x230
[  277.177580][ T6675]  kobject_add_internal+0x6e0/0xd90
[  277.182930][ T6675]  kobject_init_and_add+0x128/0x190
[  277.188154][ T6675]  ? lockdep_softirqs_off+0x430/0x430
[  277.193551][ T6675]  ? kobject_add+0x230/0x230
[  277.198180][ T6675]  ? __init_swait_queue_head+0xa5/0x150
[  277.203933][ T6675]  gfs2_sys_fs_add+0x24f/0x4b0
[  277.208722][ T6675]  ? gfs2_recover_set+0x240/0x240
[  277.213774][ T6675]  ? snprintf+0xe5/0x140
[  277.218036][ T6675]  ? __free_pages+0x95/0x1a0
[  277.222655][ T6675]  ? vscnprintf+0x80/0x80
[  277.227024][ T6675]  gfs2_fill_super+0x120f/0x1f00
[  277.232000][ T6675]  ? gfs2_reconfigure+0xd30/0xd30
[  277.237068][ T6675]  ? sb_set_blocksize+0xa5/0xe0
[  277.241959][ T6675]  get_tree_bdev+0x3f1/0x610
[  277.246579][ T6675]  ? gfs2_reconfigure+0xd30/0xd30
[  277.251637][ T6675]  gfs2_get_tree+0x4d/0x1e0
[  277.256169][ T6675]  vfs_get_tree+0x88/0x270
[  277.260606][ T6675]  do_new_mount+0x24a/0xa40
[  277.265133][ T6675]  __se_sys_mount+0x2e3/0x3d0
[  277.270018][ T6675]  ? __x64_sys_mount+0xc0/0xc0
[  277.274814][ T6675]  ? lockdep_hardirqs_on+0x94/0x140
[  277.280033][ T6675]  ? __x64_sys_mount+0x1c/0xc0
[  277.284828][ T6675]  do_syscall_64+0x4c/0xa0
[  277.289269][ T6675]  ? clear_bhb_loop+0x30/0x80
[  277.293969][ T6675]  ? clear_bhb_loop+0x30/0x80
[  277.298760][ T6675]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  277.304676][ T6675] RIP: 0033:0x7f33d8f45b8a
[  277.309117][ T6675] 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
[  277.329010][ T6675] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  277.337465][ T6675] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  277.345465][ T6675] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  277.353569][ T6675] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  277.361653][ T6675] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  277.369792][ T6675] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  277.377815][ T6675]  </TASK>
[  277.382130][ T6675] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  277.396124][ T6675] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  277.775857][ T6679] loop0: detected capacity change from 0 to 32768
[  277.806620][ T6677] loop4: detected capacity change from 0 to 32768
[  277.838872][ T6677] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  277.846420][ T6677] CPU: 1 PID: 6677 Comm: syz.4.456 Not tainted syzkaller #0
[  277.853828][ T6677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  277.863914][ T6677] Call Trace:
[  277.867221][ T6677]  <TASK>
[  277.870255][ T6677]  dump_stack_lvl+0x188/0x250
[  277.874969][ T6677]  ? show_regs_print_info+0x20/0x20
[  277.880190][ T6677]  ? load_image+0x400/0x400
[  277.884732][ T6677]  sysfs_create_dir_ns+0x26a/0x290
[  277.889875][ T6677]  ? sysfs_warn_dup+0xa0/0xa0
[  277.894662][ T6677]  ? do_raw_spin_unlock+0x11d/0x230
[  277.899993][ T6677]  kobject_add_internal+0x6e0/0xd90
[  277.905217][ T6677]  kobject_init_and_add+0x128/0x190
[  277.910429][ T6677]  ? lockdep_softirqs_off+0x430/0x430
[  277.915819][ T6677]  ? kobject_add+0x230/0x230
[  277.920430][ T6677]  ? __init_swait_queue_head+0xa5/0x150
[  277.926106][ T6677]  gfs2_sys_fs_add+0x24f/0x4b0
[  277.930897][ T6677]  ? gfs2_recover_set+0x240/0x240
[  277.935956][ T6677]  ? snprintf+0xe5/0x140
[  277.940428][ T6677]  ? __free_pages+0x95/0x1a0
[  277.945041][ T6677]  ? vscnprintf+0x80/0x80
[  277.949490][ T6677]  gfs2_fill_super+0x120f/0x1f00
[  277.954467][ T6677]  ? gfs2_reconfigure+0xd30/0xd30
[  277.959542][ T6677]  ? sb_set_blocksize+0xa5/0xe0
[  277.964418][ T6677]  get_tree_bdev+0x3f1/0x610
[  277.969040][ T6677]  ? gfs2_reconfigure+0xd30/0xd30
[  277.974177][ T6677]  gfs2_get_tree+0x4d/0x1e0
[  277.978717][ T6677]  vfs_get_tree+0x88/0x270
[  277.983169][ T6677]  do_new_mount+0x24a/0xa40
[  277.987711][ T6677]  __se_sys_mount+0x2e3/0x3d0
[  277.992429][ T6677]  ? __x64_sys_mount+0xc0/0xc0
[  277.997223][ T6677]  ? lockdep_hardirqs_on+0x94/0x140
[  278.002621][ T6677]  ? __x64_sys_mount+0x1c/0xc0
[  278.007501][ T6677]  do_syscall_64+0x4c/0xa0
[  278.011941][ T6677]  ? clear_bhb_loop+0x30/0x80
[  278.016727][ T6677]  ? clear_bhb_loop+0x30/0x80
[  278.021435][ T6677]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  278.027356][ T6677] RIP: 0033:0x7f20fe22cb8a
[  278.031793][ T6677] 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
[  278.051427][ T6677] RSP: 002b:00007f20fd491e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  278.059873][ T6677] RAX: ffffffffffffffda RBX: 00007f20fd491ee0 RCX: 00007f20fe22cb8a
[  278.067876][ T6677] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f20fd491ea0
[  278.075885][ T6677] RBP: 0000200000000400 R08: 00007f20fd491ee0 R09: 0000000000000000
[  278.083893][ T6677] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  278.091890][ T6677] R13: 00007f20fd491ea0 R14: 00000000000125bb R15: 00002000000004c0
[  278.099901][ T6677]  </TASK>
[  278.104322][ T6677] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  278.117476][ T6677] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  278.145977][ T6679] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  278.153449][ T6679] CPU: 0 PID: 6679 Comm: syz.0.457 Not tainted syzkaller #0
[  278.160847][ T6679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  278.171201][ T6679] Call Trace:
[  278.174504][ T6679]  <TASK>
[  278.177729][ T6679]  dump_stack_lvl+0x188/0x250
[  278.182436][ T6679]  ? show_regs_print_info+0x20/0x20
[  278.187698][ T6679]  ? load_image+0x400/0x400
[  278.192252][ T6679]  sysfs_create_dir_ns+0x26a/0x290
[  278.197484][ T6679]  ? sysfs_warn_dup+0xa0/0xa0
[  278.202195][ T6679]  ? do_raw_spin_unlock+0x11d/0x230
[  278.207427][ T6679]  kobject_add_internal+0x6e0/0xd90
[  278.212657][ T6679]  kobject_init_and_add+0x128/0x190
[  278.217880][ T6679]  ? lockdep_softirqs_off+0x430/0x430
[  278.223287][ T6679]  ? kobject_add+0x230/0x230
[  278.228081][ T6679]  ? __init_swait_queue_head+0xa5/0x150
[  278.233653][ T6679]  gfs2_sys_fs_add+0x24f/0x4b0
[  278.238442][ T6679]  ? gfs2_recover_set+0x240/0x240
[  278.243486][ T6679]  ? snprintf+0xe5/0x140
[  278.247799][ T6679]  ? __free_pages+0x95/0x1a0
[  278.252424][ T6679]  ? vscnprintf+0x80/0x80
[  278.256785][ T6679]  gfs2_fill_super+0x120f/0x1f00
[  278.261760][ T6679]  ? gfs2_reconfigure+0xd30/0xd30
[  278.266838][ T6679]  ? sb_set_blocksize+0xa5/0xe0
[  278.271711][ T6679]  get_tree_bdev+0x3f1/0x610
[  278.276321][ T6679]  ? gfs2_reconfigure+0xd30/0xd30
[  278.281373][ T6679]  gfs2_get_tree+0x4d/0x1e0
[  278.285892][ T6679]  vfs_get_tree+0x88/0x270
[  278.290330][ T6679]  do_new_mount+0x24a/0xa40
[  278.294853][ T6679]  __se_sys_mount+0x2e3/0x3d0
[  278.299552][ T6679]  ? __x64_sys_mount+0xc0/0xc0
[  278.304445][ T6679]  ? lockdep_hardirqs_on+0x94/0x140
[  278.309658][ T6679]  ? __x64_sys_mount+0x1c/0xc0
[  278.314444][ T6679]  do_syscall_64+0x4c/0xa0
[  278.318883][ T6679]  ? clear_bhb_loop+0x30/0x80
[  278.323615][ T6679]  ? clear_bhb_loop+0x30/0x80
[  278.328318][ T6679]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  278.334242][ T6679] RIP: 0033:0x7f4050558b8a
[  278.338679][ T6679] 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
[  278.358633][ T6679] RSP: 002b:00007f404f7bde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  278.367083][ T6679] RAX: ffffffffffffffda RBX: 00007f404f7bdee0 RCX: 00007f4050558b8a
[  278.375182][ T6679] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f404f7bdea0
[  278.383275][ T6679] RBP: 0000200000000400 R08: 00007f404f7bdee0 R09: 0000000000000000
[  278.391289][ T6679] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  278.399289][ T6679] R13: 00007f404f7bdea0 R14: 00000000000125bb R15: 00002000000004c0
[  278.407322][ T6679]  </TASK>
[  278.411556][ T6679] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  278.424738][ T6679] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  278.883216][ T6685] loop2: detected capacity change from 0 to 32768
[  279.122845][ T6687] loop4: detected capacity change from 0 to 32768
[  279.207645][ T6685] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.215787][ T6685] CPU: 1 PID: 6685 Comm: syz.2.460 Not tainted syzkaller #0
[  279.223108][ T6685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  279.233196][ T6685] Call Trace:
[  279.236507][ T6685]  <TASK>
[  279.239540][ T6685]  dump_stack_lvl+0x188/0x250
[  279.244242][ T6685]  ? show_regs_print_info+0x20/0x20
[  279.249457][ T6685]  ? load_image+0x400/0x400
[  279.253998][ T6685]  sysfs_create_dir_ns+0x26a/0x290
[  279.259215][ T6685]  ? sysfs_warn_dup+0xa0/0xa0
[  279.263995][ T6685]  ? do_raw_spin_unlock+0x11d/0x230
[  279.269222][ T6685]  kobject_add_internal+0x6e0/0xd90
[  279.274541][ T6685]  kobject_init_and_add+0x128/0x190
[  279.279849][ T6685]  ? lockdep_softirqs_off+0x430/0x430
[  279.285263][ T6685]  ? kobject_add+0x230/0x230
[  279.289888][ T6685]  ? __init_swait_queue_head+0xa5/0x150
[  279.295473][ T6685]  gfs2_sys_fs_add+0x24f/0x4b0
[  279.300267][ T6685]  ? gfs2_recover_set+0x240/0x240
[  279.305437][ T6685]  ? snprintf+0xe5/0x140
[  279.309714][ T6685]  ? __free_pages+0x95/0x1a0
[  279.314424][ T6685]  ? vscnprintf+0x80/0x80
[  279.318880][ T6685]  gfs2_fill_super+0x120f/0x1f00
[  279.323864][ T6685]  ? gfs2_reconfigure+0xd30/0xd30
[  279.328934][ T6685]  ? sb_set_blocksize+0xa5/0xe0
[  279.333818][ T6685]  get_tree_bdev+0x3f1/0x610
[  279.338437][ T6685]  ? gfs2_reconfigure+0xd30/0xd30
[  279.343485][ T6685]  gfs2_get_tree+0x4d/0x1e0
[  279.348038][ T6685]  vfs_get_tree+0x88/0x270
[  279.352598][ T6685]  do_new_mount+0x24a/0xa40
[  279.357132][ T6685]  __se_sys_mount+0x2e3/0x3d0
[  279.361839][ T6685]  ? __x64_sys_mount+0xc0/0xc0
[  279.366736][ T6685]  ? lockdep_hardirqs_on+0x94/0x140
[  279.372138][ T6685]  ? __x64_sys_mount+0x1c/0xc0
[  279.376927][ T6685]  do_syscall_64+0x4c/0xa0
[  279.381375][ T6685]  ? clear_bhb_loop+0x30/0x80
[  279.386510][ T6685]  ? clear_bhb_loop+0x30/0x80
[  279.391222][ T6685]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  279.397151][ T6685] RIP: 0033:0x7f33d8f45b8a
[  279.401584][ T6685] 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
[  279.421384][ T6685] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.430123][ T6685] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  279.438220][ T6685] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  279.446340][ T6685] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  279.454340][ T6685] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  279.462347][ T6685] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  279.470541][ T6685]  </TASK>
[  279.474541][ T6685] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  279.487738][ T6685] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.519866][ T6687] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.527514][ T6687] CPU: 1 PID: 6687 Comm: syz.4.461 Not tainted syzkaller #0
[  279.534906][ T6687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  279.545248][ T6687] Call Trace:
[  279.548601][ T6687]  <TASK>
[  279.551607][ T6687]  dump_stack_lvl+0x188/0x250
[  279.556312][ T6687]  ? show_regs_print_info+0x20/0x20
[  279.561532][ T6687]  ? load_image+0x400/0x400
[  279.566079][ T6687]  sysfs_create_dir_ns+0x26a/0x290
[  279.571220][ T6687]  ? sysfs_warn_dup+0xa0/0xa0
[  279.576012][ T6687]  ? do_raw_spin_unlock+0x11d/0x230
[  279.581252][ T6687]  kobject_add_internal+0x6e0/0xd90
[  279.586633][ T6687]  kobject_init_and_add+0x128/0x190
[  279.591950][ T6687]  ? lockdep_softirqs_off+0x430/0x430
[  279.597449][ T6687]  ? kobject_add+0x230/0x230
[  279.602070][ T6687]  ? __init_swait_queue_head+0xa5/0x150
[  279.607648][ T6687]  gfs2_sys_fs_add+0x24f/0x4b0
[  279.612446][ T6687]  ? gfs2_recover_set+0x240/0x240
[  279.617498][ T6687]  ? snprintf+0xe5/0x140
[  279.622118][ T6687]  ? __free_pages+0x95/0x1a0
[  279.626746][ T6687]  ? vscnprintf+0x80/0x80
[  279.631119][ T6687]  gfs2_fill_super+0x120f/0x1f00
[  279.636108][ T6687]  ? gfs2_reconfigure+0xd30/0xd30
[  279.641275][ T6687]  ? sb_set_blocksize+0xa5/0xe0
[  279.646300][ T6687]  get_tree_bdev+0x3f1/0x610
[  279.650920][ T6687]  ? gfs2_reconfigure+0xd30/0xd30
[  279.655974][ T6687]  gfs2_get_tree+0x4d/0x1e0
[  279.660520][ T6687]  vfs_get_tree+0x88/0x270
[  279.664964][ T6687]  do_new_mount+0x24a/0xa40
[  279.669509][ T6687]  __se_sys_mount+0x2e3/0x3d0
[  279.674303][ T6687]  ? __x64_sys_mount+0xc0/0xc0
[  279.679096][ T6687]  ? lockdep_hardirqs_on+0x94/0x140
[  279.684321][ T6687]  ? __x64_sys_mount+0x1c/0xc0
[  279.689199][ T6687]  do_syscall_64+0x4c/0xa0
[  279.693657][ T6687]  ? clear_bhb_loop+0x30/0x80
[  279.698357][ T6687]  ? clear_bhb_loop+0x30/0x80
[  279.703059][ T6687]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  279.708967][ T6687] RIP: 0033:0x7f20fe22cb8a
[  279.710202][ T6691] set_capacity_and_notify: 1 callbacks suppressed
[  279.710215][ T6691] loop3: detected capacity change from 0 to 32768
[  279.713407][ T6687] 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
[  279.746196][ T6687] RSP: 002b:00007f20fd491e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.754726][ T6687] RAX: ffffffffffffffda RBX: 00007f20fd491ee0 RCX: 00007f20fe22cb8a
[  279.762735][ T6687] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f20fd491ea0
[  279.770739][ T6687] RBP: 0000200000000400 R08: 00007f20fd491ee0 R09: 0000000000000000
[  279.778737][ T6687] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  279.786819][ T6687] R13: 00007f20fd491ea0 R14: 00000000000125bb R15: 00002000000004c0
[  279.794825][ T6687]  </TASK>
[  279.797975][ T6687] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  279.811310][ T6687] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.975474][ T6693] loop5: detected capacity change from 0 to 32768
[  280.048795][ T6691] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  280.048799][ T6693] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  280.048817][ T6691] CPU: 0 PID: 6691 Comm: syz.3.463 Not tainted syzkaller #0
[  280.071110][ T6691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  280.081265][ T6691] Call Trace:
[  280.084547][ T6691]  <TASK>
[  280.087482][ T6691]  dump_stack_lvl+0x188/0x250
[  280.092172][ T6691]  ? show_regs_print_info+0x20/0x20
[  280.097464][ T6691]  ? load_image+0x400/0x400
[  280.101983][ T6691]  sysfs_create_dir_ns+0x26a/0x290
[  280.107189][ T6691]  ? sysfs_warn_dup+0xa0/0xa0
[  280.112044][ T6691]  ? do_raw_spin_unlock+0x11d/0x230
[  280.117252][ T6691]  kobject_add_internal+0x6e0/0xd90
[  280.122459][ T6691]  kobject_init_and_add+0x128/0x190
[  280.127754][ T6691]  ? lockdep_softirqs_off+0x430/0x430
[  280.133131][ T6691]  ? kobject_add+0x230/0x230
[  280.137729][ T6691]  ? __init_swait_queue_head+0xa5/0x150
[  280.143285][ T6691]  gfs2_sys_fs_add+0x24f/0x4b0
[  280.148066][ T6691]  ? gfs2_recover_set+0x240/0x240
[  280.153102][ T6691]  ? snprintf+0xe5/0x140
[  280.157522][ T6691]  ? __free_pages+0x95/0x1a0
[  280.162208][ T6691]  ? vscnprintf+0x80/0x80
[  280.166542][ T6691]  gfs2_fill_super+0x120f/0x1f00
[  280.171506][ T6691]  ? gfs2_reconfigure+0xd30/0xd30
[  280.176652][ T6691]  ? sb_set_blocksize+0xa5/0xe0
[  280.181681][ T6691]  get_tree_bdev+0x3f1/0x610
[  280.186284][ T6691]  ? gfs2_reconfigure+0xd30/0xd30
[  280.191397][ T6691]  gfs2_get_tree+0x4d/0x1e0
[  280.196120][ T6691]  vfs_get_tree+0x88/0x270
[  280.200726][ T6691]  do_new_mount+0x24a/0xa40
[  280.205246][ T6691]  __se_sys_mount+0x2e3/0x3d0
[  280.209942][ T6691]  ? __x64_sys_mount+0xc0/0xc0
[  280.214740][ T6691]  ? lockdep_hardirqs_on+0x94/0x140
[  280.219941][ T6691]  ? __x64_sys_mount+0x1c/0xc0
[  280.224745][ T6691]  do_syscall_64+0x4c/0xa0
[  280.229166][ T6691]  ? clear_bhb_loop+0x30/0x80
[  280.233844][ T6691]  ? clear_bhb_loop+0x30/0x80
[  280.238522][ T6691]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  280.244419][ T6691] RIP: 0033:0x7feb5a094b8a
[  280.248838][ T6691] 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
[  280.268712][ T6691] RSP: 002b:00007feb592f9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  280.277137][ T6691] RAX: ffffffffffffffda RBX: 00007feb592f9ee0 RCX: 00007feb5a094b8a
[  280.285112][ T6691] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb592f9ea0
[  280.293089][ T6691] RBP: 0000200000000400 R08: 00007feb592f9ee0 R09: 0000000000000000
[  280.301155][ T6691] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  280.309742][ T6691] R13: 00007feb592f9ea0 R14: 00000000000125bb R15: 00002000000004c0
[  280.317913][ T6691]  </TASK>
[  280.320940][ T6693] CPU: 1 PID: 6693 Comm: syz.5.464 Not tainted syzkaller #0
[  280.321976][ T6691] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  280.328263][ T6693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  280.328277][ T6693] Call Trace:
[  280.328285][ T6693]  <TASK>
[  280.328293][ T6693]  dump_stack_lvl+0x188/0x250
[  280.341551][ T6691] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  280.351564][ T6693]  ? show_regs_print_info+0x20/0x20
[  280.351591][ T6693]  ? load_image+0x400/0x400
[  280.378791][ T6693]  sysfs_create_dir_ns+0x26a/0x290
[  280.384023][ T6693]  ? sysfs_warn_dup+0xa0/0xa0
[  280.388724][ T6693]  ? do_raw_spin_unlock+0x11d/0x230
[  280.393947][ T6693]  kobject_add_internal+0x6e0/0xd90
[  280.399188][ T6693]  kobject_init_and_add+0x128/0x190
[  280.404414][ T6693]  ? lockdep_softirqs_off+0x430/0x430
[  280.409832][ T6693]  ? kobject_add+0x230/0x230
[  280.414644][ T6693]  ? __init_swait_queue_head+0xa5/0x150
[  280.420335][ T6693]  gfs2_sys_fs_add+0x24f/0x4b0
[  280.425140][ T6693]  ? gfs2_recover_set+0x240/0x240
[  280.430280][ T6693]  ? snprintf+0xe5/0x140
[  280.434585][ T6693]  ? __free_pages+0x95/0x1a0
[  280.439388][ T6693]  ? vscnprintf+0x80/0x80
[  280.443752][ T6693]  gfs2_fill_super+0x120f/0x1f00
[  280.448727][ T6693]  ? gfs2_reconfigure+0xd30/0xd30
[  280.453791][ T6693]  ? sb_set_blocksize+0xa5/0xe0
[  280.458663][ T6693]  get_tree_bdev+0x3f1/0x610
[  280.463359][ T6693]  ? gfs2_reconfigure+0xd30/0xd30
[  280.468403][ T6693]  gfs2_get_tree+0x4d/0x1e0
[  280.472948][ T6693]  vfs_get_tree+0x88/0x270
[  280.477390][ T6693]  do_new_mount+0x24a/0xa40
[  280.481929][ T6693]  __se_sys_mount+0x2e3/0x3d0
[  280.486637][ T6693]  ? __x64_sys_mount+0xc0/0xc0
[  280.491439][ T6693]  ? lockdep_hardirqs_on+0x94/0x140
[  280.496767][ T6693]  ? __x64_sys_mount+0x1c/0xc0
[  280.501649][ T6693]  do_syscall_64+0x4c/0xa0
[  280.506086][ T6693]  ? clear_bhb_loop+0x30/0x80
[  280.510783][ T6693]  ? clear_bhb_loop+0x30/0x80
[  280.515490][ T6693]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  280.521631][ T6693] RIP: 0033:0x7fdc19fe7b8a
[  280.526072][ T6693] 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
[  280.545740][ T6693] RSP: 002b:00007fdc1924ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  280.554191][ T6693] RAX: ffffffffffffffda RBX: 00007fdc1924cee0 RCX: 00007fdc19fe7b8a
[  280.562369][ T6693] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdc1924cea0
[  280.570460][ T6693] RBP: 0000200000000400 R08: 00007fdc1924cee0 R09: 0000000000000000
[  280.578556][ T6693] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  280.586637][ T6693] R13: 00007fdc1924cea0 R14: 00000000000125bb R15: 00002000000004c0
[  280.594912][ T6693]  </TASK>
2026/02/28 14:51:25 executed programs: 459
[  280.598972][ T6693] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  280.612217][ T6693] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  280.637448][ T6695] loop2: detected capacity change from 0 to 32768
[  280.691098][ T6689] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  280.698861][ T6689] CPU: 0 PID: 6689 Comm: syz.0.462 Not tainted syzkaller #0
[  280.706168][ T6689] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  280.716336][ T6689] Call Trace:
[  280.719647][ T6689]  <TASK>
[  280.722728][ T6689]  dump_stack_lvl+0x188/0x250
[  280.727556][ T6689]  ? show_regs_print_info+0x20/0x20
[  280.732775][ T6689]  ? load_image+0x400/0x400
[  280.737322][ T6689]  sysfs_create_dir_ns+0x26a/0x290
[  280.742460][ T6689]  ? sysfs_warn_dup+0xa0/0xa0
[  280.747259][ T6689]  ? do_raw_spin_unlock+0x11d/0x230
[  280.752494][ T6689]  kobject_add_internal+0x6e0/0xd90
[  280.757734][ T6689]  kobject_init_and_add+0x128/0x190
[  280.763134][ T6689]  ? lockdep_softirqs_off+0x430/0x430
[  280.768571][ T6689]  ? kobject_add+0x230/0x230
[  280.773317][ T6689]  ? __init_swait_queue_head+0xa5/0x150
[  280.778913][ T6689]  gfs2_sys_fs_add+0x24f/0x4b0
[  280.783904][ T6689]  ? gfs2_recover_set+0x240/0x240
[  280.788955][ T6689]  ? snprintf+0xe5/0x140
[  280.793227][ T6689]  ? __free_pages+0x95/0x1a0
[  280.797841][ T6689]  ? vscnprintf+0x80/0x80
[  280.802206][ T6689]  gfs2_fill_super+0x120f/0x1f00
[  280.807204][ T6689]  ? gfs2_reconfigure+0xd30/0xd30
[  280.812272][ T6689]  ? sb_set_blocksize+0xa5/0xe0
[  280.817145][ T6689]  get_tree_bdev+0x3f1/0x610
[  280.821848][ T6689]  ? gfs2_reconfigure+0xd30/0xd30
[  280.826904][ T6689]  gfs2_get_tree+0x4d/0x1e0
[  280.831727][ T6689]  vfs_get_tree+0x88/0x270
[  280.836622][ T6689]  do_new_mount+0x24a/0xa40
[  280.841160][ T6689]  __se_sys_mount+0x2e3/0x3d0
[  280.845883][ T6689]  ? __x64_sys_mount+0xc0/0xc0
[  280.850728][ T6689]  ? lockdep_hardirqs_on+0x94/0x140
[  280.855987][ T6689]  ? __x64_sys_mount+0x1c/0xc0
[  280.860868][ T6689]  do_syscall_64+0x4c/0xa0
[  280.865306][ T6689]  ? clear_bhb_loop+0x30/0x80
[  280.869995][ T6689]  ? clear_bhb_loop+0x30/0x80
[  280.874864][ T6689]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  280.880950][ T6689] RIP: 0033:0x7f4050558b8a
[  280.885477][ T6689] 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
[  280.905292][ T6689] RSP: 002b:00007f404f7bde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  280.913955][ T6689] RAX: ffffffffffffffda RBX: 00007f404f7bdee0 RCX: 00007f4050558b8a
[  280.921965][ T6689] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f404f7bdea0
[  280.930143][ T6689] RBP: 0000200000000400 R08: 00007f404f7bdee0 R09: 0000000000000000
[  280.938247][ T6689] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  280.946251][ T6689] R13: 00007f404f7bdea0 R14: 00000000000125bb R15: 00002000000004c0
[  280.954362][ T6689]  </TASK>
[  280.959331][ T6689] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  280.972512][ T6689] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  281.013321][ T6695] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  281.021021][ T6695] CPU: 0 PID: 6695 Comm: syz.2.465 Not tainted syzkaller #0
[  281.028333][ T6695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  281.038415][ T6695] Call Trace:
[  281.041713][ T6695]  <TASK>
[  281.044662][ T6695]  dump_stack_lvl+0x188/0x250
[  281.044898][ T6697] loop4: detected capacity change from 0 to 32768
[  281.049370][ T6695]  ? show_regs_print_info+0x20/0x20
[  281.061173][ T6695]  ? load_image+0x400/0x400
[  281.065716][ T6695]  sysfs_create_dir_ns+0x26a/0x290
[  281.070848][ T6695]  ? sysfs_warn_dup+0xa0/0xa0
[  281.075627][ T6695]  ? do_raw_spin_unlock+0x11d/0x230
[  281.080947][ T6695]  kobject_add_internal+0x6e0/0xd90
[  281.086358][ T6695]  kobject_init_and_add+0x128/0x190
[  281.091606][ T6695]  ? lockdep_softirqs_off+0x430/0x430
[  281.097010][ T6695]  ? kobject_add+0x230/0x230
[  281.101639][ T6695]  ? __init_swait_queue_head+0xa5/0x150
[  281.107308][ T6695]  gfs2_sys_fs_add+0x24f/0x4b0
[  281.112105][ T6695]  ? gfs2_recover_set+0x240/0x240
[  281.117156][ T6695]  ? snprintf+0xe5/0x140
[  281.121687][ T6695]  ? __free_pages+0x95/0x1a0
[  281.126305][ T6695]  ? vscnprintf+0x80/0x80
[  281.130662][ T6695]  gfs2_fill_super+0x120f/0x1f00
[  281.135895][ T6695]  ? gfs2_reconfigure+0xd30/0xd30
[  281.141049][ T6695]  ? sb_set_blocksize+0xa5/0xe0
[  281.145898][ T6695]  get_tree_bdev+0x3f1/0x610
[  281.150486][ T6695]  ? gfs2_reconfigure+0xd30/0xd30
[  281.155513][ T6695]  gfs2_get_tree+0x4d/0x1e0
[  281.160007][ T6695]  vfs_get_tree+0x88/0x270
[  281.164408][ T6695]  do_new_mount+0x24a/0xa40
[  281.168901][ T6695]  __se_sys_mount+0x2e3/0x3d0
[  281.173755][ T6695]  ? __x64_sys_mount+0xc0/0xc0
[  281.178582][ T6695]  ? lockdep_hardirqs_on+0x94/0x140
[  281.183973][ T6695]  ? __x64_sys_mount+0x1c/0xc0
[  281.188733][ T6695]  do_syscall_64+0x4c/0xa0
[  281.193141][ T6695]  ? clear_bhb_loop+0x30/0x80
[  281.198048][ T6695]  ? clear_bhb_loop+0x30/0x80
[  281.202739][ T6695]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  281.208652][ T6695] RIP: 0033:0x7f33d8f45b8a
[  281.213094][ T6695] 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
[  281.232740][ T6695] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  281.241147][ T6695] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  281.249110][ T6695] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  281.257155][ T6695] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  281.265224][ T6695] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  281.273183][ T6695] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  281.281180][ T6695]  </TASK>
[  281.287417][ T6695] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  281.302418][ T6695] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  281.381383][ T6697] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  281.388912][ T6697] CPU: 1 PID: 6697 Comm: syz.4.466 Not tainted syzkaller #0
[  281.396228][ T6697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  281.406315][ T6697] Call Trace:
[  281.409614][ T6697]  <TASK>
[  281.412562][ T6697]  dump_stack_lvl+0x188/0x250
[  281.417273][ T6697]  ? show_regs_print_info+0x20/0x20
[  281.422500][ T6697]  ? load_image+0x400/0x400
[  281.427138][ T6697]  sysfs_create_dir_ns+0x26a/0x290
[  281.432424][ T6697]  ? sysfs_warn_dup+0xa0/0xa0
[  281.437139][ T6697]  ? do_raw_spin_unlock+0x11d/0x230
[  281.442372][ T6697]  kobject_add_internal+0x6e0/0xd90
[  281.447621][ T6697]  kobject_init_and_add+0x128/0x190
[  281.452949][ T6697]  ? lockdep_softirqs_off+0x430/0x430
[  281.458366][ T6697]  ? kobject_add+0x230/0x230
[  281.462991][ T6697]  ? __init_swait_queue_head+0xa5/0x150
[  281.468569][ T6697]  gfs2_sys_fs_add+0x24f/0x4b0
[  281.473362][ T6697]  ? gfs2_recover_set+0x240/0x240
[  281.478417][ T6697]  ? snprintf+0xe5/0x140
[  281.482692][ T6697]  ? __free_pages+0x95/0x1a0
[  281.487312][ T6697]  ? vscnprintf+0x80/0x80
[  281.491831][ T6697]  gfs2_fill_super+0x120f/0x1f00
[  281.496917][ T6697]  ? gfs2_reconfigure+0xd30/0xd30
[  281.501998][ T6697]  ? sb_set_blocksize+0xa5/0xe0
[  281.506883][ T6697]  get_tree_bdev+0x3f1/0x610
[  281.511598][ T6697]  ? gfs2_reconfigure+0xd30/0xd30
[  281.516670][ T6697]  gfs2_get_tree+0x4d/0x1e0
[  281.521199][ T6697]  vfs_get_tree+0x88/0x270
[  281.525647][ T6697]  do_new_mount+0x24a/0xa40
[  281.530196][ T6697]  __se_sys_mount+0x2e3/0x3d0
[  281.534911][ T6697]  ? __x64_sys_mount+0xc0/0xc0
[  281.539715][ T6697]  ? lockdep_hardirqs_on+0x94/0x140
[  281.544946][ T6697]  ? __x64_sys_mount+0x1c/0xc0
[  281.549742][ T6697]  do_syscall_64+0x4c/0xa0
[  281.554181][ T6697]  ? clear_bhb_loop+0x30/0x80
[  281.558876][ T6697]  ? clear_bhb_loop+0x30/0x80
[  281.563625][ T6697]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  281.569580][ T6697] RIP: 0033:0x7f20fe22cb8a
[  281.574019][ T6697] 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
[  281.593732][ T6697] RSP: 002b:00007f20fd491e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  281.602174][ T6697] RAX: ffffffffffffffda RBX: 00007f20fd491ee0 RCX: 00007f20fe22cb8a
[  281.610166][ T6697] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f20fd491ea0
[  281.618352][ T6697] RBP: 0000200000000400 R08: 00007f20fd491ee0 R09: 0000000000000000
[  281.626362][ T6697] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  281.634365][ T6697] R13: 00007f20fd491ea0 R14: 00000000000125bb R15: 00002000000004c0
[  281.642384][ T6697]  </TASK>
[  281.646591][ T6697] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  281.659761][ T6697] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  281.779918][ T6700] loop3: detected capacity change from 0 to 32768
[  282.111269][ T6701] loop5: detected capacity change from 0 to 32768
[  282.135982][   T27] INFO: task syz.1.44:5293 blocked for more than 143 seconds.
[  282.149859][ T6703] loop0: detected capacity change from 0 to 32768
[  282.154383][   T27]       Not tainted syzkaller #0
[  282.162152][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  282.172188][   T27] task:syz.1.44        state:D stack:24944 pid: 5293 ppid:  4929 flags:0x00004004
[  282.182241][   T27] Call Trace:
[  282.185863][   T27]  <TASK>
[  282.188928][   T27]  __schedule+0x11ef/0x43c0
[  282.193557][   T27]  ? __lock_acquire+0x7d10/0x7d10
[  282.199115][   T27]  ? _raw_spin_lock_irqsave+0x8b/0x100
[  282.204620][   T27]  ? release_firmware_map_entry+0x190/0x190
[  282.210729][   T27]  ? lockdep_hardirqs_off+0x70/0x100
[  282.216125][   T27]  ? _raw_spin_unlock_irqrestore+0x82/0x120
[  282.222466][   T27]  schedule+0x11b/0x1e0
[  282.227109][   T27]  schedule_timeout+0xbd/0x2d0
[  282.232086][   T27]  ? console_conditional_schedule+0x40/0x40
[  282.238474][   T27]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  282.244511][   T27]  ? lock_chain_count+0x20/0x20
[  282.249670][   T27]  ? lock_chain_count+0x20/0x20
[  282.254551][   T27]  ? _raw_spin_unlock_irq+0x1f/0x40
[  282.260192][   T27]  ? lockdep_hardirqs_on+0x94/0x140
[  282.265850][   T27]  do_wait_for_common+0x2a2/0x450
[  282.270991][   T27]  ? console_conditional_schedule+0x40/0x40
[  282.277021][   T27]  ? wait_for_completion_killable_timeout+0x60/0x60
[  282.283690][   T27]  ? _raw_spin_lock_irq+0xb7/0xf0
[  282.288894][   T27]  ? try_to_wake_up+0x6cf/0x1050
[  282.293866][   T27]  wait_for_completion+0x48/0x60
[  282.298888][   T27]  kthread_stop+0x16e/0x540
[  282.303404][   T27]  gfs2_make_fs_ro+0x157/0x620
[  282.308320][   T27]  ? gfs2_dinode_out+0xb00/0xb00
[  282.313283][   T27]  ? do_raw_spin_lock+0x128/0x2f0
[  282.318406][   T27]  ? __rwlock_init+0x140/0x140
[  282.323615][   T27]  ? do_raw_spin_unlock+0x11d/0x230
[  282.328997][   T27]  ? gfs2_glock_is_locked_by_me+0x16f/0x190
[  282.336012][   T27]  gfs2_withdraw+0x610/0x1490
[  282.340756][   T27]  ? gfs2_lm+0x240/0x240
[  282.345144][   T27]  ? gfs2_meta_buffer+0x310/0x310
[  282.350210][   T27]  ? from_kuid_munged+0x6b0/0x6b0
[  282.355308][   T27]  gfs2_metatype_check_ii+0x74/0x90
[  282.360537][   T27]  gfs2_quota_init+0xca5/0xea0
[  282.365503][   T27]  ? qd_get+0x5f0/0x5f0
[  282.369851][   T27]  gfs2_make_fs_rw+0x414/0x580
[  282.374632][   T27]  ? _raw_spin_unlock+0x24/0x40
[  282.379606][   T27]  ? gfs2_glock_nq+0xcb0/0x1550
[  282.384500][   T27]  ? gfs2_jdesc_check+0x290/0x290
[  282.389679][   T27]  gfs2_fill_super+0x1837/0x1f00
[  282.394766][   T27]  ? gfs2_reconfigure+0xd30/0xd30
[  282.399958][   T27]  ? gfs2_glock_nq_num+0x82/0x1b0
[  282.405188][   T27]  ? gfs2_freeze_lock+0x52/0xc0
[  282.410305][   T27]  ? sb_set_blocksize+0xa5/0xe0
[  282.415341][   T27]  get_tree_bdev+0x3f1/0x610
[  282.419958][   T27]  ? gfs2_reconfigure+0xd30/0xd30
[  282.425700][   T27]  gfs2_get_tree+0x4d/0x1e0
[  282.430243][   T27]  vfs_get_tree+0x88/0x270
[  282.434655][   T27]  do_new_mount+0x24a/0xa40
[  282.439432][   T27]  __se_sys_mount+0x2e3/0x3d0
[  282.444153][   T27]  ? __x64_sys_mount+0xc0/0xc0
[  282.449270][   T27]  ? lockdep_hardirqs_on+0x94/0x140
[  282.454581][   T27]  ? __x64_sys_mount+0x1c/0xc0
[  282.460365][   T27]  do_syscall_64+0x4c/0xa0
[  282.465264][   T27]  ? clear_bhb_loop+0x30/0x80
[  282.469954][   T27]  ? clear_bhb_loop+0x30/0x80
[  282.474625][   T27]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  282.480665][   T27] RIP: 0033:0x7fc32b893b8a
[  282.485321][   T27] RSP: 002b:00007fc32aaf8e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  282.494055][   T27] RAX: ffffffffffffffda RBX: 00007fc32aaf8ee0 RCX: 00007fc32b893b8a
[  282.502511][   T27] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fc32aaf8ea0
[  282.510681][   T27] RBP: 0000200000000400 R08: 00007fc32aaf8ee0 R09: 0000000000000000
[  282.518765][   T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  282.527462][   T27] R13: 00007fc32aaf8ea0 R14: 00000000000125bb R15: 00002000000004c0
[  282.535557][   T27]  </TASK>
[  282.538629][   T27] INFO: task gfs2_quotad:5305 blocked for more than 143 seconds.
[  282.548949][   T27]       Not tainted syzkaller #0
[  282.554136][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  282.563733][   T27] task:gfs2_quotad     state:D stack:27096 pid: 5305 ppid:     2 flags:0x00004000
[  282.573096][   T27] Call Trace:
[  282.576457][   T27]  <TASK>
[  282.579414][   T27]  __schedule+0x11ef/0x43c0
[  282.583965][   T27]  ? lock_chain_count+0x20/0x20
[  282.589106][   T27]  ? release_firmware_map_entry+0x190/0x190
[  282.595914][   T27]  ? _raw_spin_unlock_irqrestore+0x82/0x120
[  282.601926][   T27]  ? lockdep_hardirqs_on+0x94/0x140
[  282.608045][   T27]  ? _raw_spin_unlock_irqrestore+0xc1/0x120
[  282.614069][   T27]  schedule+0x11b/0x1e0
[  282.618930][   T27]  bit_wait+0xd/0xc0
[  282.623191][   T27]  out_of_line_wait_on_bit+0x173/0x230
[  282.633677][ T6700] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  282.639749][   T27]  ? out_of_line_wait_on_bit_lock+0x190/0x190
[  282.641222][ T6700] CPU: 0 PID: 6700 Comm: syz.3.468 Not tainted syzkaller #0
[  282.641246][ T6700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  282.641258][ T6700] Call Trace:
[  282.647940][   T27]  ? __wait_on_bit+0x170/0x170
[  282.654856][ T6700]  <TASK>
[  282.654868][ T6700]  dump_stack_lvl+0x188/0x250
[  282.654897][ T6700]  ? show_regs_print_info+0x20/0x20
[  282.665513][   T27]  ? bit_waitqueue+0x30/0x30
[  282.668347][ T6700]  ? load_image+0x400/0x400
[  282.673107][   T27]  ? do_raw_spin_unlock+0x11d/0x230
[  282.676071][ T6700]  sysfs_create_dir_ns+0x26a/0x290
[  282.676097][ T6700]  ? sysfs_warn_dup+0xa0/0xa0
[  282.676119][ T6700]  ? do_raw_spin_unlock+0x11d/0x230
[  282.676143][ T6700]  kobject_add_internal+0x6e0/0xd90
[  282.681163][   T27]  __gfs2_glock_dq+0x6b5/0xa10
[  282.686093][ T6700]  kobject_init_and_add+0x128/0x190
[  282.686116][ T6700]  ? lockdep_softirqs_off+0x430/0x430
[  282.690709][   T27]  gfs2_glock_dq_uninit+0x4f/0x110
[  282.695193][ T6700]  ? kobject_add+0x230/0x230
[  282.695221][ T6700]  ? __init_swait_queue_head+0xa5/0x150
[  282.695248][ T6700]  gfs2_sys_fs_add+0x24f/0x4b0
[  282.695271][ T6700]  ? gfs2_recover_set+0x240/0x240
[  282.695290][ T6700]  ? snprintf+0xe5/0x140
[  282.695306][ T6700]  ? __free_pages+0x95/0x1a0
[  282.695330][ T6700]  ? vscnprintf+0x80/0x80
[  282.695362][ T6700]  gfs2_fill_super+0x120f/0x1f00
[  282.695398][ T6700]  ? gfs2_reconfigure+0xd30/0xd30
[  282.695437][ T6700]  ? sb_set_blocksize+0xa5/0xe0
[  282.695459][ T6700]  get_tree_bdev+0x3f1/0x610
[  282.695483][ T6700]  ? gfs2_reconfigure+0xd30/0xd30
[  282.695506][ T6700]  gfs2_get_tree+0x4d/0x1e0
[  282.695529][ T6700]  vfs_get_tree+0x88/0x270
[  282.695552][ T6700]  do_new_mount+0x24a/0xa40
[  282.695579][ T6700]  __se_sys_mount+0x2e3/0x3d0
[  282.695604][ T6700]  ? __x64_sys_mount+0xc0/0xc0
[  282.695629][ T6700]  ? lockdep_hardirqs_on+0x94/0x140
[  282.714848][   T27]  gfs2_statfs_sync+0x718/0x7c0
[  282.715791][ T6700]  ? __x64_sys_mount+0x1c/0xc0
[  282.721072][   T27]  ? update_statfs+0x320/0x320
[  282.725748][ T6700]  do_syscall_64+0x4c/0xa0
[  282.725770][ T6700]  ? clear_bhb_loop+0x30/0x80
[  282.725788][ T6700]  ? clear_bhb_loop+0x30/0x80
[  282.725808][ T6700]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  282.725828][ T6700] RIP: 0033:0x7feb5a094b8a
[  282.733059][   T27]  ? finish_task_switch+0x12f/0x640
[  282.736717][ T6700] 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
[  282.736742][ T6700] RSP: 002b:00007feb592f9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  282.736767][ T6700] RAX: ffffffffffffffda RBX: 00007feb592f9ee0 RCX: 00007feb5a094b8a
[  282.736782][ T6700] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb592f9ea0
[  282.742774][   T27]  ? gfs2_statfs_sync+0x15b/0x7c0
[  282.746498][ T6700] RBP: 0000200000000400 R08: 00007feb592f9ee0 R09: 0000000000000000
[  282.746519][ T6700] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  282.746532][ T6700] R13: 00007feb592f9ea0 R14: 00000000000125bb R15: 00002000000004c0
[  282.746560][ T6700]  </TASK>
[  282.746619][ T6700] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  282.746635][ T6700] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  282.972342][ T6701] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  282.979776][ T6701] CPU: 1 PID: 6701 Comm: syz.5.467 Not tainted syzkaller #0
[  282.987735][ T6701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  282.997904][ T6701] Call Trace:
[  283.001205][ T6701]  <TASK>
[  283.004958][ T6701]  dump_stack_lvl+0x188/0x250
[  283.009666][ T6701]  ? show_regs_print_info+0x20/0x20
[  283.014885][ T6701]  ? load_image+0x400/0x400
[  283.019431][ T6701]  sysfs_create_dir_ns+0x26a/0x290
[  283.024005][ T6705] loop2: detected capacity change from 0 to 32768
[  283.024646][ T6701]  ? sysfs_warn_dup+0xa0/0xa0
[  283.036726][ T6701]  ? do_raw_spin_unlock+0x11d/0x230
[  283.042040][ T6701]  kobject_add_internal+0x6e0/0xd90
[  283.047276][ T6701]  kobject_init_and_add+0x128/0x190
[  283.049120][   T27]  gfs2_quotad+0x372/0x890
[  283.052488][ T6701]  ? lockdep_softirqs_off+0x430/0x430
[  283.059676][   T27]  ? gfs2_wake_up_statfs+0xc0/0xc0
[  283.062273][ T6701]  ? kobject_add+0x230/0x230
[  283.072064][ T6701]  ? __init_swait_queue_head+0xa5/0x150
[  283.072177][   T27]  ? _raw_spin_unlock_irqrestore+0x82/0x120
[  283.077636][ T6701]  gfs2_sys_fs_add+0x24f/0x4b0
[  283.077663][ T6701]  ? gfs2_recover_set+0x240/0x240
[  283.077685][ T6701]  ? snprintf+0xe5/0x140
[  283.077703][ T6701]  ? __free_pages+0x95/0x1a0
[  283.077728][ T6701]  ? vscnprintf+0x80/0x80
[  283.077759][ T6701]  gfs2_fill_super+0x120f/0x1f00
[  283.090669][   T27]  ? init_wait_entry+0xd0/0xd0
[  283.093431][ T6701]  ? gfs2_reconfigure+0xd30/0xd30
[  283.098185][   T27]  ? _raw_spin_unlock_irqrestore+0xc1/0x120
[  283.102375][ T6701]  ? sb_set_blocksize+0xa5/0xe0
[  283.102404][ T6701]  get_tree_bdev+0x3f1/0x610
[  283.102428][ T6701]  ? gfs2_reconfigure+0xd30/0xd30
[  283.113569][   T27]  ? __kthread_parkme+0x157/0x1b0
[  283.116449][ T6701]  gfs2_get_tree+0x4d/0x1e0
[  283.116479][ T6701]  vfs_get_tree+0x88/0x270
[  283.116501][ T6701]  do_new_mount+0x24a/0xa40
[  283.122119][   T27]  kthread+0x436/0x520
[  283.127437][ T6701]  __se_sys_mount+0x2e3/0x3d0
[  283.127476][ T6701]  ? __x64_sys_mount+0xc0/0xc0
[  283.127500][ T6701]  ? lockdep_hardirqs_on+0x94/0x140
[  283.127520][ T6701]  ? __x64_sys_mount+0x1c/0xc0
[  283.127542][ T6701]  do_syscall_64+0x4c/0xa0
[  283.127561][ T6701]  ? clear_bhb_loop+0x30/0x80
[  283.127579][ T6701]  ? clear_bhb_loop+0x30/0x80
[  283.127600][ T6701]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  283.127619][ T6701] RIP: 0033:0x7fdc19fe7b8a
[  283.127649][ T6701] 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
[  283.127666][ T6701] RSP: 002b:00007fdc1924ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  283.143969][   T27]  ? gfs2_wake_up_statfs+0xc0/0xc0
[  283.147320][ T6701] RAX: ffffffffffffffda RBX: 00007fdc1924cee0 RCX: 00007fdc19fe7b8a
[  283.147340][ T6701] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fdc1924cea0
[  283.147353][ T6701] RBP: 0000200000000400 R08: 00007fdc1924cee0 R09: 0000000000000000
[  283.147367][ T6701] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  283.147380][ T6701] R13: 00007fdc1924cea0 R14: 00000000000125bb R15: 00002000000004c0
[  283.147410][ T6701]  </TASK>
[  283.147474][ T6701] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  283.147492][ T6701] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  283.308467][   T27]  ? kthread_blkcg+0xd0/0xd0
[  283.313275][   T27]  ret_from_fork+0x1f/0x30
[  283.319723][   T27]  </TASK>
[  283.322862][   T27] 
[  283.322862][   T27] Showing all locks held in the system:
[  283.327602][ T6703] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  283.332422][   T27] 1 lock held by khungtaskd/27:
[  283.338232][ T6703] CPU: 0 PID: 6703 Comm: syz.0.469 Not tainted syzkaller #0
[  283.338256][ T6703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  283.360533][ T6703] Call Trace:
[  283.363838][ T6703]  <TASK>
[  283.366792][ T6703]  dump_stack_lvl+0x188/0x250
[  283.371503][ T6703]  ? show_regs_print_info+0x20/0x20
[  283.376743][ T6703]  ? load_image+0x400/0x400
[  283.381279][ T6703]  sysfs_create_dir_ns+0x26a/0x290
[  283.386415][ T6703]  ? sysfs_warn_dup+0xa0/0xa0
[  283.391210][ T6703]  ? do_raw_spin_unlock+0x11d/0x230
[  283.396433][ T6703]  kobject_add_internal+0x6e0/0xd90
[  283.401725][ T6703]  kobject_init_and_add+0x128/0x190
[  283.406941][ T6703]  ? lockdep_softirqs_off+0x430/0x430
[  283.412360][ T6703]  ? kobject_add+0x230/0x230
[  283.416997][ T6703]  ? __init_swait_queue_head+0xa5/0x150
[  283.422588][ T6703]  gfs2_sys_fs_add+0x24f/0x4b0
[  283.427495][ T6703]  ? gfs2_recover_set+0x240/0x240
[  283.432550][ T6703]  ? snprintf+0xe5/0x140
[  283.436818][ T6703]  ? __free_pages+0x95/0x1a0
[  283.440455][   T27]  #0: ffffffff8c31eaa0
[  283.441433][ T6703]  ? vscnprintf+0x80/0x80
[  283.441469][ T6703]  gfs2_fill_super+0x120f/0x1f00
[  283.454890][ T6703]  ? gfs2_reconfigure+0xd30/0xd30
[  283.460056][ T6703]  ? sb_set_blocksize+0xa5/0xe0
[  283.460615][   T27]  (
[  283.465139][ T6703]  get_tree_bdev+0x3f1/0x610
[  283.465168][ T6703]  ? gfs2_reconfigure+0xd30/0xd30
[  283.465192][ T6703]  gfs2_get_tree+0x4d/0x1e0
[  283.465216][ T6703]  vfs_get_tree+0x88/0x270
[  283.465238][ T6703]  do_new_mount+0x24a/0xa40
[  283.468529][   T27] rcu_read_lock
[  283.472322][ T6703]  __se_sys_mount+0x2e3/0x3d0
[  283.472354][ T6703]  ? __x64_sys_mount+0xc0/0xc0
[  283.480325][   T27] ){....}-{1:2}
[  283.482037][ T6703]  ? lockdep_hardirqs_on+0x94/0x140
[  283.486756][   T27] , at: rcu_lock_acquire+0x0/0x30
[  283.490937][ T6703]  ? __x64_sys_mount+0x1c/0xc0
[  283.490964][ T6703]  do_syscall_64+0x4c/0xa0
[  283.490984][ T6703]  ? clear_bhb_loop+0x30/0x80
[  283.491001][ T6703]  ? clear_bhb_loop+0x30/0x80
[  283.491022][ T6703]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  283.494677][   T27] 2 locks held by kworker/1:2/1107:
[  283.499224][ T6703] RIP: 0033:0x7f4050558b8a
[  283.499246][ T6703] 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
[  283.499264][ T6703] RSP: 002b:00007f404f7bde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  283.499286][ T6703] RAX: ffffffffffffffda RBX: 00007f404f7bdee0 RCX: 00007f4050558b8a
[  283.499300][ T6703] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f404f7bdea0
[  283.499315][ T6703] RBP: 0000200000000400 R08: 00007f404f7bdee0 R09: 0000000000000000
[  283.499330][ T6703] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  283.499343][ T6703] R13: 00007f404f7bdea0 R14: 00000000000125bb R15: 00002000000004c0
[  283.499374][ T6703]  </TASK>
[  283.500252][ T6703] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  283.513527][   T27]  #0: 
[  283.513685][ T6703] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  283.519704][   T27] ffff888016c72138
[  283.563805][ T6705] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  283.661259][ T6705] CPU: 0 PID: 6705 Comm: syz.2.470 Not tainted syzkaller #0
[  283.668769][ T6705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  283.678962][ T6705] Call Trace:
[  283.682287][ T6705]  <TASK>
[  283.685237][ T6705]  dump_stack_lvl+0x188/0x250
[  283.690031][ T6705]  ? show_regs_print_info+0x20/0x20
[  283.695264][ T6705]  ? load_image+0x400/0x400
[  283.699808][ T6705]  sysfs_create_dir_ns+0x26a/0x290
[  283.705013][ T6705]  ? sysfs_warn_dup+0xa0/0xa0
[  283.709734][ T6705]  ? do_raw_spin_unlock+0x11d/0x230
[  283.715012][ T6705]  kobject_add_internal+0x6e0/0xd90
[  283.720554][ T6705]  kobject_init_and_add+0x128/0x190
[  283.725774][ T6705]  ? lockdep_softirqs_off+0x430/0x430
[  283.731360][ T6705]  ? kobject_add+0x230/0x230
[  283.736165][ T6705]  ? __init_swait_queue_head+0xa5/0x150
[  283.741737][ T6705]  gfs2_sys_fs_add+0x24f/0x4b0
[  283.746696][ T6705]  ? gfs2_recover_set+0x240/0x240
[  283.751824][ T6705]  ? snprintf+0xe5/0x140
[  283.756087][ T6705]  ? __free_pages+0x95/0x1a0
[  283.760701][ T6705]  ? vscnprintf+0x80/0x80
[  283.765147][ T6705]  gfs2_fill_super+0x120f/0x1f00
[  283.770119][ T6705]  ? gfs2_reconfigure+0xd30/0xd30
[  283.775177][ T6705]  ? sb_set_blocksize+0xa5/0xe0
[  283.780062][ T6705]  get_tree_bdev+0x3f1/0x610
[  283.784690][ T6705]  ? gfs2_reconfigure+0xd30/0xd30
[  283.789745][ T6705]  gfs2_get_tree+0x4d/0x1e0
[  283.794286][ T6705]  vfs_get_tree+0x88/0x270
[  283.798734][ T6705]  do_new_mount+0x24a/0xa40
[  283.803275][ T6705]  __se_sys_mount+0x2e3/0x3d0
[  283.807990][ T6705]  ? __x64_sys_mount+0xc0/0xc0
[  283.812873][ T6705]  ? lockdep_hardirqs_on+0x94/0x140
[  283.818099][ T6705]  ? __x64_sys_mount+0x1c/0xc0
[  283.823005][ T6705]  do_syscall_64+0x4c/0xa0
[  283.827453][ T6705]  ? clear_bhb_loop+0x30/0x80
[  283.832160][ T6705]  ? clear_bhb_loop+0x30/0x80
[  283.837092][ T6705]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  283.843014][ T6705] RIP: 0033:0x7f33d8f45b8a
[  283.847541][ T6705] 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
[  283.867179][ T6705] RSP: 002b:00007f33d81aae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  283.875724][ T6705] RAX: ffffffffffffffda RBX: 00007f33d81aaee0 RCX: 00007f33d8f45b8a
[  283.883730][ T6705] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f33d81aaea0
[  283.891746][ T6705] RBP: 0000200000000400 R08: 00007f33d81aaee0 R09: 0000000000000000
[  283.899749][ T6705] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  283.907744][ T6705] R13: 00007f33d81aaea0 R14: 00000000000125bb R15: 00002000000004c0
[  283.916104][ T6705]  </TASK>
[  283.920530][ T6705] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  283.921259][ T6707] loop4: detected capacity change from 0 to 32768
[  283.933689][ T6705] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  283.965537][   T27]  ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x761/0x1010
[  283.983704][   T27]  #1: ffffc90005157d00 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010
[  283.997389][   T27] 2 locks held by udevd/3559:
[  284.002111][   T27]  #0: ffff888020b9c518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x157/0xa60
[  284.012440][   T27]  #1: ffff888020a85468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_open+0x6a/0x100
[  284.021299][   T27] 2 locks held by getty/3944:
[  284.026203][   T27]  #0: ffff88802d3d8098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[  284.036313][   T27]  #1: ffffc900025e62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5df/0x1a70
[  284.047289][   T27] 3 locks held by kworker/1:4/4219:
[  284.052516][   T27]  #0: ffff888016c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x761/0x1010
[  284.064646][   T27]  #1: ffffc9000303fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010
[  284.077669][   T27]  #2: ffffffff8c323528 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d1/0x750
[  284.089456][   T27] 2 locks held by udevd/4934:
[  284.094244][   T27]  #0: ffff888020a53d18 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[  284.114994][   T27]  #1: ffff888020b77468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90
[  284.132508][   T27] 1 lock held by udevd/4942:
[  284.137783][   T27]  #0: ffff888020b9c518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x157/0xa60
[  284.155206][   T27] 3 locks held by kworker/u4:7/5144:
[  284.161906][   T27]  #0: ffff8880b913a358 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140
[  284.182729][   T27]  #1: ffff8880b9127888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x4fe/0x7d0
[  284.196201][   T27]  #2: ffff8880b91280d8 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x123/0x270
[  284.212235][   T27] 1 lock held by syz.1.44/5293:
[  284.219049][   T27]  #0: ffff88805748c0e0 (&type->s_umount_key#53/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950
[  284.236297][   T27] 2 locks held by udevd/5458:
[  284.241292][   T27]  #0: ffff888020a54518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x157/0xa60
[  284.267766][   T27]  #1: ffff8881471e2468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_open+0x6a/0x100
[  284.277014][   T27] 1 lock held by syz.5.467/6701:
[  284.282061][   T27]  #0: ffff888020a85468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90
[  284.291377][   T27] 1 lock held by syz.3.468/6700:
[  284.296370][   T27]  #0: ffff8881471e2468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90
[  284.305752][   T27] 2 locks held by syz.0.469/6703:
[  284.310788][   T27]  #0: ffff888020a50518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[  284.320200][   T27]  #1: ffff888020b71468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[  284.329530][   T27] 2 locks held by syz.4.471/6707:
[  284.334718][   T27]  #0: ffff888020a56118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[  284.344240][   T27]  #1: ffff8881471e5468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[  284.353287][   T27] 1 lock held by syz.2.472/6709:
[  284.358324][   T27]  #0: ffff888020a53d18 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x157/0xa60
[  284.370178][   T27] 
[  284.372547][   T27] =============================================
[  284.372547][   T27] 
[  284.383977][   T27] NMI backtrace for cpu 0
[  284.388336][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[  284.395549][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  284.406491][   T27] Call Trace:
[  284.409793][   T27]  <TASK>
[  284.412911][   T27]  dump_stack_lvl+0x188/0x250
[  284.417616][   T27]  ? show_regs_print_info+0x20/0x20
[  284.422832][   T27]  ? load_image+0x400/0x400
[  284.427355][   T27]  ? nmi_cpu_backtrace+0x1b2/0x3d0
[  284.432488][   T27]  nmi_cpu_backtrace+0x3a2/0x3d0
[  284.437440][   T27]  ? nmi_trigger_cpumask_backtrace+0x280/0x280
[  284.443613][   T27]  ? _printk+0xda/0x130
[  284.447798][   T27]  ? load_image+0x400/0x400
[  284.452331][   T27]  ? load_image+0x400/0x400
[  284.456862][   T27]  ? arch_trigger_cpumask_backtrace+0x10/0x10
[  284.462949][   T27]  nmi_trigger_cpumask_backtrace+0x163/0x280
[  284.469038][   T27]  watchdog+0xe0f/0xe50
[  284.473332][   T27]  kthread+0x436/0x520
[  284.477433][   T27]  ? hungtask_pm_notify+0x40/0x40
[  284.482482][   T27]  ? kthread_blkcg+0xd0/0xd0
[  284.487230][   T27]  ret_from_fork+0x1f/0x30
[  284.491687][   T27]  </TASK>
[  284.495695][   T27] Sending NMI from CPU 0 to CPUs 1:
[  284.501044][    C1] NMI backtrace for cpu 1
[  284.501056][    C1] CPU: 1 PID: 4281 Comm: kworker/1:14 Not tainted syzkaller #0
[  284.501072][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  284.501080][    C1] Workqueue: rcu_gp process_srcu
[  284.501098][    C1] RIP: 0010:delay_tsc+0x6d/0xc0
[  284.501117][    C1] Code: 00 00 e8 16 cd 48 fd 65 8b 05 b7 da f8 7b 85 c0 74 1c f3 90 bf 01 00 00 00 e8 6f cb 48 fd e8 aa a3 b2 05 39 c5 75 0e 0f 01 f9 <66> 90 eb bd e8 ea e7 f6 fc eb dd 4c 29 fb e8 90 a3 b2 05 89 c5 0f
[  284.501129][    C1] RSP: 0018:ffffc900031dfac0 EFLAGS: 00000246
[  284.501142][    C1] RAX: 00000000c42c0a64 RBX: 0000000000002af9 RCX: 0000000000000001
[  284.501152][    C1] RDX: 0000000000000093 RSI: ffffffff8a79f7e0 RDI: ffffffff8a79f7a0
[  284.501163][    C1] RBP: 0000000000000001 R08: ffffc900031df927 R09: 1ffff9200063bf24
[  284.501174][    C1] R10: dffffc0000000000 R11: fffff5200063bf25 R12: dffffc0000000000
[  284.501184][    C1] R13: ffffffff96344800 R14: 00000093c42bfe30 R15: 0000000000000b7c
[  284.501195][    C1] FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
[  284.501208][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  284.501219][    C1] CR2: 0000555569dffa68 CR3: 0000000057e4c000 CR4: 00000000003506e0
[  284.501234][    C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  284.501244][    C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  284.501253][    C1] Call Trace:
[  284.501259][    C1]  <TASK>
[  284.501266][    C1]  try_check_zero+0x2c7/0x340
[  284.501284][    C1]  process_srcu+0x195/0xc10
[  284.501298][    C1]  ? read_lock_is_recursive+0x10/0x10
[  284.501315][    C1]  ? _raw_spin_unlock_irqrestore+0xc1/0x120
[  284.501330][    C1]  ? _raw_spin_unlock+0x40/0x40
[  284.501344][    C1]  ? _raw_spin_unlock_irq+0x1f/0x40
[  284.501359][    C1]  process_one_work+0x85f/0x1010
[  284.501382][    C1]  ? worker_detach_from_pool+0x240/0x240
[  284.501397][    C1]  ? lockdep_hardirqs_off+0x70/0x100
[  284.501415][    C1]  ? _raw_spin_lock_irq+0xb7/0xf0
[  284.501428][    C1]  ? _raw_spin_lock_irqsave+0x100/0x100
[  284.501443][    C1]  ? wq_worker_running+0x97/0x170
[  284.501457][    C1]  worker_thread+0xaa6/0x1290
[  284.501483][    C1]  kthread+0x436/0x520
[  284.501497][    C1]  ? rcu_lock_release+0x20/0x20
[  284.501510][    C1]  ? kthread_blkcg+0xd0/0xd0
[  284.501524][    C1]  ret_from_fork+0x1f/0x30
[  284.501546][    C1]  </TASK>
[  284.515654][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  284.744494][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[  284.751798][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  284.761874][   T27] Call Trace:
[  284.765181][   T27]  <TASK>
[  284.768134][   T27]  dump_stack_lvl+0x188/0x250
[  284.772954][   T27]  ? show_regs_print_info+0x20/0x20
[  284.778261][   T27]  ? load_image+0x400/0x400
[  284.782800][   T27]  panic+0x2e5/0x810
[  284.786714][   T27]  ? schedule_preempt_disabled+0x20/0x20
[  284.792367][   T27]  ? bpf_jit_dump+0xd0/0xd0
[  284.793138][ T6711] loop5: detected capacity change from 0 to 32768
[  284.796884][   T27]  ? __irq_work_queue_local+0x12c/0x190
[  284.796912][   T27]  ? nmi_trigger_cpumask_backtrace+0x260/0x280
[  284.796949][   T27]  watchdog+0xe4e/0xe50
[  284.819618][   T27]  kthread+0x436/0x520
[  284.823718][   T27]  ? hungtask_pm_notify+0x40/0x40
[  284.828956][   T27]  ? kthread_blkcg+0xd0/0xd0
[  284.829926][ T6707] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  284.833770][   T27]  ret_from_fork+0x1f/0x30
[  284.833808][   T27]  </TASK>
[  284.848636][ T6707] CPU: 1 PID: 6707 Comm: syz.4.471 Not tainted syzkaller #0
[  284.856020][ T6707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  284.866170][ T6707] Call Trace:
[  284.869452][ T6707]  <TASK>
[  284.872390][ T6707]  dump_stack_lvl+0x188/0x250
[  284.877082][ T6707]  ? show_regs_print_info+0x20/0x20
[  284.882287][ T6707]  ? load_image+0x400/0x400
[  284.886807][ T6707]  sysfs_create_dir_ns+0x26a/0x290
[  284.892033][ T6707]  ? sysfs_warn_dup+0xa0/0xa0
[  284.896713][ T6707]  ? do_raw_spin_unlock+0x11d/0x230
[  284.901920][ T6707]  kobject_add_internal+0x6e0/0xd90
[  284.907225][ T6707]  kobject_init_and_add+0x128/0x190
[  284.912516][ T6707]  ? lockdep_softirqs_off+0x430/0x430
[  284.917900][ T6707]  ? kobject_add+0x230/0x230
[  284.922603][ T6707]  ? __init_swait_queue_head+0xa5/0x150
[  284.928190][ T6707]  gfs2_sys_fs_add+0x24f/0x4b0
[  284.932960][ T6707]  ? gfs2_recover_set+0x240/0x240
[  284.937989][ T6707]  ? snprintf+0xe5/0x140
[  284.942238][ T6707]  ? __free_pages+0x95/0x1a0
[  284.946838][ T6707]  ? vscnprintf+0x80/0x80
[  284.951183][ T6707]  gfs2_fill_super+0x120f/0x1f00
[  284.956142][ T6707]  ? gfs2_reconfigure+0xd30/0xd30
[  284.961188][ T6707]  ? sb_set_blocksize+0xa5/0xe0
[  284.966310][ T6707]  get_tree_bdev+0x3f1/0x610
[  284.970930][ T6707]  ? gfs2_reconfigure+0xd30/0xd30
[  284.975965][ T6707]  gfs2_get_tree+0x4d/0x1e0
[  284.980484][ T6707]  vfs_get_tree+0x88/0x270
[  284.984918][ T6707]  do_new_mount+0x24a/0xa40
[  284.989442][ T6707]  __se_sys_mount+0x2e3/0x3d0
[  284.994128][ T6707]  ? __x64_sys_mount+0xc0/0xc0
[  284.998912][ T6707]  ? lockdep_hardirqs_on+0x94/0x140
[  285.004200][ T6707]  ? __x64_sys_mount+0x1c/0xc0
[  285.008977][ T6707]  do_syscall_64+0x4c/0xa0
[  285.013501][ T6707]  ? clear_bhb_loop+0x30/0x80
[  285.018180][ T6707]  ? clear_bhb_loop+0x30/0x80
[  285.022860][ T6707]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  285.028763][ T6707] RIP: 0033:0x7f20fe22cb8a
[  285.033276][ T6707] 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
[  285.052985][ T6707] RSP: 002b:00007f20fd491e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  285.061593][ T6707] RAX: ffffffffffffffda RBX: 00007f20fd491ee0 RCX: 00007f20fe22cb8a
[  285.069566][ T6707] RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007f20fd491ea0
[  285.077539][ T6707] RBP: 0000200000000400 R08: 00007f20fd491ee0 R09: 0000000000000000
[  285.085597][ T6707] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  285.093575][ T6707] R13: 00007f20fd491ea0 R14: 00000000000125bb R15: 00002000000004c0
[  285.101566][ T6707]  </TASK>
[  285.105238][   T27] Kernel Offset: disabled
[  285.109578][   T27] Rebooting in 86400 seconds..