186] ? preempt_count_add+0x8d/0x190
[ 219.557881][ T6186] ? sb_set_blocksize+0xa5/0xe0
[ 219.562759][ T6186] get_tree_bdev+0x3f1/0x610
[ 219.567372][ T6186] ? gfs2_reconfigure+0xcd0/0xcd0
[ 219.570960][ T6188] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 219.572403][ T6186] gfs2_get_tree+0x4d/0x1e0
[ 219.586230][ T6188] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 219.590550][ T6186] vfs_get_tree+0x88/0x270
[ 219.590578][ T6186] do_new_mount+0x24a/0xa40
[ 219.590603][ T6186] __se_sys_mount+0x2d6/0x3c0
[ 219.590624][ T6186] ? __x64_sys_mount+0xc0/0xc0
[ 219.590644][ T6186] ? lockdep_hardirqs_on+0x94/0x140
[ 219.590661][ T6186] ? __x64_sys_mount+0x1c/0xc0
[ 219.590679][ T6186] do_syscall_64+0x4c/0xa0
[ 219.590695][ T6186] ? clear_bhb_loop+0x30/0x80
[ 219.634978][ T6186] ? clear_bhb_loop+0x30/0x80
[ 219.639744][ T6186] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 219.645721][ T6186] RIP: 0033:0x7fe7bdbd476a
[ 219.650129][ T6186] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 219.669840][ T6186] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 219.678245][ T6186] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 219.686418][ T6186] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 219.694384][ T6186] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 219.702387][ T6186] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 219.710352][ T6186] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 219.718331][ T6186]
[ 219.743675][ T6183] CPU: 1 PID: 6183 Comm: syz.0.237 Not tainted syzkaller #0
[ 219.751021][ T6183] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 219.761087][ T6183] Call Trace:
[ 219.764431][ T6183]
[ 219.767374][ T6183] dump_stack_lvl+0x168/0x230
[ 219.772065][ T6183] ? show_regs_print_info+0x20/0x20
[ 219.777370][ T6183] ? load_image+0x3b0/0x3b0
[ 219.781990][ T6183] sysfs_create_dir_ns+0x252/0x280
[ 219.787139][ T6183] ? __lock_acquire+0x7c60/0x7c60
[ 219.792167][ T6183] ? sysfs_warn_dup+0xa0/0xa0
[ 219.796613][ T6186] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 219.796952][ T6183] ? do_raw_spin_unlock+0x11d/0x230
[ 219.815227][ T6183] kobject_add_internal+0x662/0xd00
[ 219.820448][ T6183] kobject_init_and_add+0x122/0x190
[ 219.825663][ T6183] ? lockdep_softirqs_off+0x420/0x420
[ 219.831246][ T6183] ? kobject_add+0x210/0x210
[ 219.833417][ T6186] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 219.835858][ T6183] ? __init_swait_queue_head+0xa5/0x150
[ 219.847890][ T6183] gfs2_sys_fs_add+0x234/0x480
[ 219.852764][ T6183] ? gfs2_recover_set+0x240/0x240
[ 219.857814][ T6183] ? snprintf+0xd7/0x120
[ 219.862072][ T6183] ? __free_pages+0x95/0x1a0
[ 219.866682][ T6183] ? vscnprintf+0x80/0x80
[ 219.871041][ T6183] gfs2_fill_super+0x128d/0x1f50
[ 219.876013][ T6183] ? gfs2_reconfigure+0xcd0/0xcd0
[ 219.881056][ T6183] ? preempt_count_add+0x8d/0x190
[ 219.886102][ T6183] ? sb_set_blocksize+0xa5/0xe0
[ 219.890974][ T6183] get_tree_bdev+0x3f1/0x610
[ 219.895579][ T6183] ? gfs2_reconfigure+0xcd0/0xcd0
[ 219.900627][ T6183] gfs2_get_tree+0x4d/0x1e0
[ 219.905146][ T6183] vfs_get_tree+0x88/0x270
[ 219.909581][ T6183] do_new_mount+0x24a/0xa40
[ 219.914109][ T6183] __se_sys_mount+0x2d6/0x3c0
[ 219.918807][ T6183] ? __x64_sys_mount+0xc0/0xc0
[ 219.923666][ T6183] ? lockdep_hardirqs_on+0x94/0x140
[ 219.928997][ T6183] ? __x64_sys_mount+0x1c/0xc0
[ 219.933860][ T6183] do_syscall_64+0x4c/0xa0
[ 219.938338][ T6183] ? clear_bhb_loop+0x30/0x80
[ 219.943023][ T6183] ? clear_bhb_loop+0x30/0x80
[ 219.947712][ T6183] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 219.953714][ T6183] RIP: 0033:0x7fd32b6a976a
[ 219.958233][ T6183] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 219.977936][ T6183] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 219.986367][ T6183] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 219.994371][ T6183] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 220.002359][ T6183] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 220.010350][ T6183] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 220.018332][ T6183] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 220.026347][ T6183]
[ 220.197896][ T6183] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 220.241909][ T6183] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 220.287932][ T6192] loop1: detected capacity change from 0 to 32768
[ 220.329878][ T6192] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 220.361360][ T6192] CPU: 0 PID: 6192 Comm: syz.1.240 Not tainted syzkaller #0
[ 220.368683][ T6192] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 220.378756][ T6192] Call Trace:
[ 220.382042][ T6192]
[ 220.384987][ T6192] dump_stack_lvl+0x168/0x230
[ 220.389686][ T6192] ? show_regs_print_info+0x20/0x20
[ 220.394989][ T6192] ? load_image+0x3b0/0x3b0
[ 220.399610][ T6192] sysfs_create_dir_ns+0x252/0x280
[ 220.404823][ T6192] ? __lock_acquire+0x7c60/0x7c60
[ 220.409868][ T6192] ? sysfs_warn_dup+0xa0/0xa0
[ 220.414578][ T6192] ? do_raw_spin_unlock+0x11d/0x230
[ 220.419789][ T6192] kobject_add_internal+0x662/0xd00
[ 220.425008][ T6192] kobject_init_and_add+0x122/0x190
[ 220.430299][ T6192] ? lockdep_softirqs_off+0x420/0x420
[ 220.435689][ T6192] ? kobject_add+0x210/0x210
[ 220.440310][ T6192] ? __init_swait_queue_head+0xa5/0x150
[ 220.445869][ T6192] gfs2_sys_fs_add+0x234/0x480
[ 220.450643][ T6192] ? gfs2_recover_set+0x240/0x240
[ 220.455778][ T6192] ? snprintf+0xd7/0x120
[ 220.460029][ T6192] ? __free_pages+0x95/0x1a0
[ 220.464630][ T6192] ? vscnprintf+0x80/0x80
[ 220.468973][ T6192] gfs2_fill_super+0x128d/0x1f50
[ 220.473934][ T6192] ? gfs2_reconfigure+0xcd0/0xcd0
[ 220.478970][ T6192] ? preempt_count_add+0x8d/0x190
[ 220.484184][ T6192] ? sb_set_blocksize+0xa5/0xe0
[ 220.489132][ T6192] get_tree_bdev+0x3f1/0x610
[ 220.493754][ T6192] ? gfs2_reconfigure+0xcd0/0xcd0
[ 220.498796][ T6192] gfs2_get_tree+0x4d/0x1e0
[ 220.503314][ T6192] vfs_get_tree+0x88/0x270
[ 220.507747][ T6192] do_new_mount+0x24a/0xa40
[ 220.512278][ T6192] __se_sys_mount+0x2d6/0x3c0
[ 220.517089][ T6192] ? __x64_sys_mount+0xc0/0xc0
[ 220.521875][ T6192] ? lockdep_hardirqs_on+0x94/0x140
[ 220.527357][ T6192] ? __x64_sys_mount+0x1c/0xc0
[ 220.532228][ T6192] do_syscall_64+0x4c/0xa0
[ 220.536658][ T6192] ? clear_bhb_loop+0x30/0x80
[ 220.541350][ T6192] ? clear_bhb_loop+0x30/0x80
[ 220.546129][ T6192] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 220.552042][ T6192] RIP: 0033:0x7fc1174bd76a
[ 220.556467][ T6192] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 220.576184][ T6192] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 220.584613][ T6192] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 220.592680][ T6192] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 220.600670][ T6192] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 220.608661][ T6192] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 220.616832][ T6192] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 220.625370][ T6192]
[ 221.057222][ T6196] loop2: detected capacity change from 0 to 32768
[ 221.073745][ T6192] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 221.111152][ T6196] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 221.130787][ T6192] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 221.144274][ T6198] loop3: detected capacity change from 0 to 32768
[ 221.147312][ T6196] CPU: 0 PID: 6196 Comm: syz.2.241 Not tainted syzkaller #0
[ 221.157974][ T6196] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 221.168218][ T6196] Call Trace:
[ 221.171597][ T6196]
[ 221.174544][ T6196] dump_stack_lvl+0x168/0x230
[ 221.179237][ T6196] ? show_regs_print_info+0x20/0x20
[ 221.184453][ T6196] ? load_image+0x3b0/0x3b0
[ 221.188979][ T6196] sysfs_create_dir_ns+0x252/0x280
[ 221.194108][ T6196] ? __lock_acquire+0x7c60/0x7c60
[ 221.199143][ T6196] ? sysfs_warn_dup+0xa0/0xa0
[ 221.203917][ T6196] ? do_raw_spin_unlock+0x11d/0x230
[ 221.209128][ T6196] kobject_add_internal+0x662/0xd00
[ 221.214343][ T6196] kobject_init_and_add+0x122/0x190
[ 221.219562][ T6196] ? lockdep_softirqs_off+0x420/0x420
[ 221.224956][ T6196] ? kobject_add+0x210/0x210
[ 221.229560][ T6196] ? __init_swait_queue_head+0xa5/0x150
[ 221.235120][ T6196] gfs2_sys_fs_add+0x234/0x480
[ 221.239898][ T6196] ? gfs2_recover_set+0x240/0x240
[ 221.244932][ T6196] ? snprintf+0xd7/0x120
[ 221.249184][ T6196] ? __free_pages+0x95/0x1a0
[ 221.253782][ T6196] ? vscnprintf+0x80/0x80
[ 221.258217][ T6196] gfs2_fill_super+0x128d/0x1f50
[ 221.263179][ T6196] ? gfs2_reconfigure+0xcd0/0xcd0
[ 221.268219][ T6196] ? preempt_count_add+0x8d/0x190
[ 221.273349][ T6196] ? sb_set_blocksize+0xa5/0xe0
[ 221.278222][ T6196] get_tree_bdev+0x3f1/0x610
[ 221.282822][ T6196] ? gfs2_reconfigure+0xcd0/0xcd0
[ 221.287860][ T6196] gfs2_get_tree+0x4d/0x1e0
[ 221.292384][ T6196] vfs_get_tree+0x88/0x270
[ 221.296815][ T6196] do_new_mount+0x24a/0xa40
[ 221.301332][ T6196] __se_sys_mount+0x2d6/0x3c0
[ 221.306028][ T6196] ? __x64_sys_mount+0xc0/0xc0
[ 221.310798][ T6196] ? lockdep_hardirqs_on+0x94/0x140
[ 221.316003][ T6196] ? __x64_sys_mount+0x1c/0xc0
[ 221.320773][ T6196] do_syscall_64+0x4c/0xa0
[ 221.325195][ T6196] ? clear_bhb_loop+0x30/0x80
[ 221.329875][ T6196] ? clear_bhb_loop+0x30/0x80
[ 221.334563][ T6196] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 221.340467][ T6196] RIP: 0033:0x7fbbe852676a
[ 221.344898][ T6196] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 221.364946][ T6196] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 221.373376][ T6196] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 221.381361][ T6196] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 221.389435][ T6196] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 221.397413][ T6196] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 221.405410][ T6196] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 221.413406][ T6196]
[ 221.444330][ T6198] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 221.469650][ T6198] CPU: 1 PID: 6198 Comm: syz.3.242 Not tainted syzkaller #0
[ 221.476967][ T6198] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 221.481986][ T6196] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 221.487020][ T6198] Call Trace:
[ 221.487029][ T6198]
[ 221.487036][ T6198] dump_stack_lvl+0x168/0x230
[ 221.487061][ T6198] ? show_regs_print_info+0x20/0x20
[ 221.487079][ T6198] ? load_image+0x3b0/0x3b0
[ 221.500551][ T6196] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 221.503748][ T6198] sysfs_create_dir_ns+0x252/0x280
[ 221.522989][ T6201] loop0: detected capacity change from 0 to 32768
[ 221.527554][ T6198] ? __lock_acquire+0x7c60/0x7c60
[ 221.527581][ T6198] ? sysfs_warn_dup+0xa0/0xa0
[ 221.527604][ T6198] ? do_raw_spin_unlock+0x11d/0x230
[ 221.527625][ T6198] kobject_add_internal+0x662/0xd00
[ 221.559852][ T6198] kobject_init_and_add+0x122/0x190
[ 221.564129][ T6202] loop5: detected capacity change from 0 to 32768
[ 221.565052][ T6198] ? lockdep_softirqs_off+0x420/0x420
[ 221.576814][ T6198] ? kobject_add+0x210/0x210
[ 221.581419][ T6198] ? __init_swait_queue_head+0xa5/0x150
[ 221.587070][ T6198] gfs2_sys_fs_add+0x234/0x480
[ 221.591849][ T6198] ? gfs2_recover_set+0x240/0x240
[ 221.597053][ T6198] ? snprintf+0xd7/0x120
[ 221.601310][ T6198] ? __free_pages+0x95/0x1a0
[ 221.606090][ T6198] ? vscnprintf+0x80/0x80
[ 221.610454][ T6198] gfs2_fill_super+0x128d/0x1f50
[ 221.615431][ T6198] ? gfs2_reconfigure+0xcd0/0xcd0
[ 221.620473][ T6198] ? preempt_count_add+0x8d/0x190
[ 221.625488][ T6198] ? sb_set_blocksize+0xa5/0xe0
[ 221.630462][ T6198] get_tree_bdev+0x3f1/0x610
[ 221.635059][ T6198] ? gfs2_reconfigure+0xcd0/0xcd0
[ 221.640095][ T6198] gfs2_get_tree+0x4d/0x1e0
[ 221.644728][ T6198] vfs_get_tree+0x88/0x270
[ 221.649139][ T6198] do_new_mount+0x24a/0xa40
[ 221.653636][ T6198] __se_sys_mount+0x2d6/0x3c0
[ 221.658299][ T6198] ? __x64_sys_mount+0xc0/0xc0
[ 221.663061][ T6198] ? lockdep_hardirqs_on+0x94/0x140
[ 221.668337][ T6198] ? __x64_sys_mount+0x1c/0xc0
[ 221.673100][ T6198] do_syscall_64+0x4c/0xa0
[ 221.677503][ T6198] ? clear_bhb_loop+0x30/0x80
[ 221.682177][ T6198] ? clear_bhb_loop+0x30/0x80
[ 221.686856][ T6198] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 221.692746][ T6198] RIP: 0033:0x7fe7bdbd476a
[ 221.697170][ T6198] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 221.717069][ T6198] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 221.725540][ T6198] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 221.733718][ T6198] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 221.741782][ T6198] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 221.749866][ T6198] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 221.757827][ T6198] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 221.765816][ T6198]
[ 221.771008][ T6198] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 221.785031][ T6198] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 221.814365][ T6202] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 221.824480][ T6201] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 221.876267][ T6201] CPU: 1 PID: 6201 Comm: syz.0.244 Not tainted syzkaller #0
[ 221.883587][ T6201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 221.893740][ T6201] Call Trace:
[ 221.897026][ T6201]
[ 221.899968][ T6201] dump_stack_lvl+0x168/0x230
[ 221.904707][ T6201] ? show_regs_print_info+0x20/0x20
[ 221.909913][ T6201] ? load_image+0x3b0/0x3b0
[ 221.914438][ T6201] sysfs_create_dir_ns+0x252/0x280
[ 221.919580][ T6201] ? __lock_acquire+0x7c60/0x7c60
[ 221.924706][ T6201] ? sysfs_warn_dup+0xa0/0xa0
[ 221.929502][ T6201] ? do_raw_spin_unlock+0x11d/0x230
[ 221.934765][ T6201] kobject_add_internal+0x662/0xd00
[ 221.939997][ T6201] kobject_init_and_add+0x122/0x190
[ 221.945483][ T6201] ? lockdep_softirqs_off+0x420/0x420
[ 221.950880][ T6201] ? kobject_add+0x210/0x210
[ 221.955496][ T6201] ? __init_swait_queue_head+0xa5/0x150
[ 221.961151][ T6201] gfs2_sys_fs_add+0x234/0x480
[ 221.965954][ T6201] ? gfs2_recover_set+0x240/0x240
[ 221.971002][ T6201] ? snprintf+0xd7/0x120
[ 221.975255][ T6201] ? __free_pages+0x95/0x1a0
[ 221.979855][ T6201] ? vscnprintf+0x80/0x80
[ 221.984207][ T6201] gfs2_fill_super+0x128d/0x1f50
[ 221.989174][ T6201] ? gfs2_reconfigure+0xcd0/0xcd0
[ 221.994220][ T6201] ? preempt_count_add+0x8d/0x190
[ 221.999266][ T6201] ? sb_set_blocksize+0xa5/0xe0
[ 222.004140][ T6201] get_tree_bdev+0x3f1/0x610
[ 222.008748][ T6201] ? gfs2_reconfigure+0xcd0/0xcd0
[ 222.013880][ T6201] gfs2_get_tree+0x4d/0x1e0
[ 222.018397][ T6201] vfs_get_tree+0x88/0x270
[ 222.022829][ T6201] do_new_mount+0x24a/0xa40
[ 222.027348][ T6201] __se_sys_mount+0x2d6/0x3c0
[ 222.032048][ T6201] ? __x64_sys_mount+0xc0/0xc0
[ 222.036821][ T6201] ? lockdep_hardirqs_on+0x94/0x140
[ 222.042038][ T6201] ? __x64_sys_mount+0x1c/0xc0
[ 222.046903][ T6201] do_syscall_64+0x4c/0xa0
[ 222.051339][ T6201] ? clear_bhb_loop+0x30/0x80
[ 222.056032][ T6201] ? clear_bhb_loop+0x30/0x80
[ 222.060718][ T6201] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 222.066626][ T6201] RIP: 0033:0x7fd32b6a976a
[ 222.071131][ T6201] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 222.090834][ T6201] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 222.099273][ T6201] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 222.107249][ T6201] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 222.115230][ T6201] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 222.123233][ T6201] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 222.131200][ T6201] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 222.139274][ T6201]
[ 222.142289][ T6202] CPU: 0 PID: 6202 Comm: syz.5.243 Not tainted syzkaller #0
[ 222.149581][ T6202] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 222.159647][ T6202] Call Trace:
[ 222.162936][ T6202]
[ 222.165879][ T6202] dump_stack_lvl+0x168/0x230
[ 222.170575][ T6202] ? show_regs_print_info+0x20/0x20
[ 222.175784][ T6202] ? load_image+0x3b0/0x3b0
[ 222.180305][ T6202] sysfs_create_dir_ns+0x252/0x280
[ 222.185431][ T6202] ? __lock_acquire+0x7c60/0x7c60
[ 222.190471][ T6202] ? sysfs_warn_dup+0xa0/0xa0
[ 222.195171][ T6202] ? do_raw_spin_unlock+0x11d/0x230
[ 222.200468][ T6202] kobject_add_internal+0x662/0xd00
[ 222.205765][ T6202] kobject_init_and_add+0x122/0x190
[ 222.211053][ T6202] ? lockdep_softirqs_off+0x420/0x420
[ 222.216580][ T6202] ? kobject_add+0x210/0x210
[ 222.221214][ T6202] ? __init_swait_queue_head+0xa5/0x150
[ 222.226778][ T6202] gfs2_sys_fs_add+0x234/0x480
[ 222.231563][ T6202] ? gfs2_recover_set+0x240/0x240
[ 222.236694][ T6202] ? snprintf+0xd7/0x120
[ 222.241234][ T6202] ? __free_pages+0x95/0x1a0
[ 222.245841][ T6202] ? vscnprintf+0x80/0x80
[ 222.250201][ T6202] gfs2_fill_super+0x128d/0x1f50
[ 222.255164][ T6202] ? gfs2_reconfigure+0xcd0/0xcd0
[ 222.260202][ T6202] ? preempt_count_add+0x8d/0x190
[ 222.265259][ T6202] ? sb_set_blocksize+0xa5/0xe0
[ 222.270132][ T6202] get_tree_bdev+0x3f1/0x610
[ 222.274758][ T6202] ? gfs2_reconfigure+0xcd0/0xcd0
[ 222.279883][ T6202] gfs2_get_tree+0x4d/0x1e0
[ 222.284583][ T6202] vfs_get_tree+0x88/0x270
[ 222.289021][ T6202] do_new_mount+0x24a/0xa40
[ 222.293535][ T6202] __se_sys_mount+0x2d6/0x3c0
[ 222.298216][ T6202] ? __x64_sys_mount+0xc0/0xc0
[ 222.302992][ T6202] ? lockdep_hardirqs_on+0x94/0x140
[ 222.308208][ T6202] ? __x64_sys_mount+0x1c/0xc0
[ 222.312993][ T6202] do_syscall_64+0x4c/0xa0
[ 222.317426][ T6202] ? clear_bhb_loop+0x30/0x80
[ 222.322116][ T6202] ? clear_bhb_loop+0x30/0x80
[ 222.326813][ T6202] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 222.332718][ T6202] RIP: 0033:0x7f6deb47c76a
[ 222.334829][ T6201] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 222.337138][ T6202] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 222.370282][ T6202] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 222.378898][ T6202] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 222.385099][ T6201] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 222.386885][ T6202] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 222.401332][ T6202] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 222.409574][ T6202] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 222.417564][ T6202] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 222.425690][ T6202]
[ 222.980411][ T6202] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 223.014130][ T6202] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 223.114680][ T6205] loop3: detected capacity change from 0 to 32768
[ 223.123327][ T6208] loop2: detected capacity change from 0 to 32768
[ 223.195545][ T6205] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 223.207460][ T6205] CPU: 0 PID: 6205 Comm: syz.3.245 Not tainted syzkaller #0
[ 223.214799][ T6205] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 223.224990][ T6205] Call Trace:
[ 223.227146][ T6208] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 223.228360][ T6205]
[ 223.228369][ T6205] dump_stack_lvl+0x168/0x230
[ 223.228392][ T6205] ? show_regs_print_info+0x20/0x20
[ 223.228410][ T6205] ? load_image+0x3b0/0x3b0
[ 223.228435][ T6205] sysfs_create_dir_ns+0x252/0x280
[ 223.228456][ T6205] ? __lock_acquire+0x7c60/0x7c60
[ 223.228477][ T6205] ? sysfs_warn_dup+0xa0/0xa0
[ 223.228500][ T6205] ? do_raw_spin_unlock+0x11d/0x230
[ 223.228521][ T6205] kobject_add_internal+0x662/0xd00
[ 223.278249][ T6205] kobject_init_and_add+0x122/0x190
[ 223.283460][ T6205] ? lockdep_softirqs_off+0x420/0x420
[ 223.288864][ T6205] ? kobject_add+0x210/0x210
[ 223.293472][ T6205] ? __init_swait_queue_head+0xa5/0x150
[ 223.299040][ T6205] gfs2_sys_fs_add+0x234/0x480
[ 223.303996][ T6205] ? gfs2_recover_set+0x240/0x240
[ 223.309031][ T6205] ? snprintf+0xd7/0x120
[ 223.313389][ T6205] ? __free_pages+0x95/0x1a0
[ 223.318003][ T6205] ? vscnprintf+0x80/0x80
[ 223.322790][ T6205] gfs2_fill_super+0x128d/0x1f50
[ 223.327753][ T6205] ? gfs2_reconfigure+0xcd0/0xcd0
[ 223.332892][ T6205] ? preempt_count_add+0x8d/0x190
[ 223.337940][ T6205] ? sb_set_blocksize+0xa5/0xe0
[ 223.342809][ T6205] get_tree_bdev+0x3f1/0x610
[ 223.347411][ T6205] ? gfs2_reconfigure+0xcd0/0xcd0
[ 223.352540][ T6205] gfs2_get_tree+0x4d/0x1e0
[ 223.357102][ T6205] vfs_get_tree+0x88/0x270
[ 223.361528][ T6205] do_new_mount+0x24a/0xa40
[ 223.366063][ T6205] __se_sys_mount+0x2d6/0x3c0
[ 223.370761][ T6205] ? __x64_sys_mount+0xc0/0xc0
[ 223.375712][ T6205] ? lockdep_hardirqs_on+0x94/0x140
[ 223.380934][ T6205] ? __x64_sys_mount+0x1c/0xc0
[ 223.385733][ T6205] do_syscall_64+0x4c/0xa0
[ 223.390164][ T6205] ? clear_bhb_loop+0x30/0x80
[ 223.394858][ T6205] ? clear_bhb_loop+0x30/0x80
[ 223.399636][ T6205] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 223.405544][ T6205] RIP: 0033:0x7fe7bdbd476a
[ 223.409973][ T6205] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 223.430126][ T6205] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 223.438560][ T6205] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 223.446540][ T6205] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 223.454534][ T6205] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 223.462520][ T6205] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 223.470582][ T6205] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 223.478577][ T6205]
[ 223.485608][ T6208] CPU: 0 PID: 6208 Comm: syz.2.247 Not tainted syzkaller #0
2025/12/08 15:47:09 executed programs: 242
[ 223.493009][ T6208] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 223.503246][ T6208] Call Trace:
[ 223.506536][ T6208]
[ 223.509490][ T6208] dump_stack_lvl+0x168/0x230
[ 223.514184][ T6208] ? show_regs_print_info+0x20/0x20
[ 223.519415][ T6208] ? load_image+0x3b0/0x3b0
[ 223.523943][ T6208] sysfs_create_dir_ns+0x252/0x280
[ 223.529075][ T6208] ? __lock_acquire+0x7c60/0x7c60
[ 223.534128][ T6208] ? sysfs_warn_dup+0xa0/0xa0
[ 223.538823][ T6208] ? do_raw_spin_unlock+0x11d/0x230
[ 223.544062][ T6208] kobject_add_internal+0x662/0xd00
[ 223.549414][ T6208] kobject_init_and_add+0x122/0x190
[ 223.554629][ T6208] ? lockdep_softirqs_off+0x420/0x420
[ 223.560024][ T6208] ? kobject_add+0x210/0x210
[ 223.564633][ T6208] ? __init_swait_queue_head+0xa5/0x150
[ 223.570194][ T6208] gfs2_sys_fs_add+0x234/0x480
[ 223.574966][ T6208] ? gfs2_recover_set+0x240/0x240
[ 223.579998][ T6208] ? snprintf+0xd7/0x120
[ 223.584253][ T6208] ? __free_pages+0x95/0x1a0
[ 223.588865][ T6208] ? vscnprintf+0x80/0x80
[ 223.593413][ T6208] gfs2_fill_super+0x128d/0x1f50
[ 223.598485][ T6208] ? gfs2_reconfigure+0xcd0/0xcd0
[ 223.603647][ T6208] ? preempt_count_add+0x8d/0x190
[ 223.608692][ T6208] ? sb_set_blocksize+0xa5/0xe0
[ 223.613642][ T6208] get_tree_bdev+0x3f1/0x610
[ 223.618372][ T6208] ? gfs2_reconfigure+0xcd0/0xcd0
[ 223.623413][ T6208] gfs2_get_tree+0x4d/0x1e0
[ 223.627938][ T6208] vfs_get_tree+0x88/0x270
[ 223.632374][ T6208] do_new_mount+0x24a/0xa40
[ 223.636891][ T6208] __se_sys_mount+0x2d6/0x3c0
[ 223.641760][ T6208] ? __x64_sys_mount+0xc0/0xc0
[ 223.646649][ T6208] ? lockdep_hardirqs_on+0x94/0x140
[ 223.651873][ T6208] ? __x64_sys_mount+0x1c/0xc0
[ 223.656649][ T6208] do_syscall_64+0x4c/0xa0
[ 223.661073][ T6208] ? clear_bhb_loop+0x30/0x80
[ 223.665855][ T6208] ? clear_bhb_loop+0x30/0x80
[ 223.670558][ T6208] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 223.676209][ T6206] loop1: detected capacity change from 0 to 32768
[ 223.676668][ T6208] RIP: 0033:0x7fbbe852676a
[ 223.687516][ T6208] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 223.698620][ T6205] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 223.707213][ T6208] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 223.707237][ T6208] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 223.707250][ T6208] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 223.707262][ T6208] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 223.707273][ T6208] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 223.707284][ T6208] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 223.707308][ T6208]
[ 223.783996][ T6206] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 223.807397][ T6206] CPU: 0 PID: 6206 Comm: syz.1.246 Not tainted syzkaller #0
[ 223.814728][ T6206] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 223.824806][ T6206] Call Trace:
[ 223.828111][ T6206]
[ 223.831051][ T6206] dump_stack_lvl+0x168/0x230
[ 223.835812][ T6206] ? show_regs_print_info+0x20/0x20
[ 223.841129][ T6206] ? load_image+0x3b0/0x3b0
[ 223.845658][ T6206] sysfs_create_dir_ns+0x252/0x280
[ 223.846242][ T6208] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 223.850777][ T6206] ? __lock_acquire+0x7c60/0x7c60
[ 223.850801][ T6206] ? sysfs_warn_dup+0xa0/0xa0
[ 223.850823][ T6206] ? do_raw_spin_unlock+0x11d/0x230
[ 223.850843][ T6206] kobject_add_internal+0x662/0xd00
[ 223.850867][ T6206] kobject_init_and_add+0x122/0x190
[ 223.850881][ T6206] ? lockdep_softirqs_off+0x420/0x420
[ 223.850903][ T6206] ? kobject_add+0x210/0x210
[ 223.850933][ T6206] ? __init_swait_queue_head+0xa5/0x150
[ 223.850956][ T6206] gfs2_sys_fs_add+0x234/0x480
[ 223.850975][ T6206] ? gfs2_recover_set+0x240/0x240
[ 223.850992][ T6206] ? snprintf+0xd7/0x120
[ 223.870096][ T6208] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 223.873789][ T6206] ? __free_pages+0x95/0x1a0
[ 223.930130][ T6206] ? vscnprintf+0x80/0x80
[ 223.934464][ T6206] gfs2_fill_super+0x128d/0x1f50
[ 223.939488][ T6206] ? gfs2_reconfigure+0xcd0/0xcd0
[ 223.944502][ T6206] ? preempt_count_add+0x8d/0x190
[ 223.949518][ T6206] ? sb_set_blocksize+0xa5/0xe0
[ 223.954367][ T6206] get_tree_bdev+0x3f1/0x610
[ 223.959033][ T6206] ? gfs2_reconfigure+0xcd0/0xcd0
[ 223.964054][ T6206] gfs2_get_tree+0x4d/0x1e0
[ 223.968553][ T6206] vfs_get_tree+0x88/0x270
[ 223.973175][ T6206] do_new_mount+0x24a/0xa40
[ 223.977667][ T6206] __se_sys_mount+0x2d6/0x3c0
[ 223.982338][ T6206] ? __x64_sys_mount+0xc0/0xc0
[ 223.987094][ T6206] ? lockdep_hardirqs_on+0x94/0x140
[ 223.992282][ T6206] ? __x64_sys_mount+0x1c/0xc0
[ 223.997113][ T6206] do_syscall_64+0x4c/0xa0
[ 224.001509][ T6206] ? clear_bhb_loop+0x30/0x80
[ 224.006182][ T6206] ? clear_bhb_loop+0x30/0x80
[ 224.011209][ T6206] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 224.017136][ T6206] RIP: 0033:0x7fc1174bd76a
[ 224.021623][ T6206] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 224.041214][ T6206] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 224.049612][ T6206] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 224.057571][ T6206] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 224.065526][ T6206] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 224.073479][ T6206] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 224.081435][ T6206] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 224.089399][ T6206]
[ 224.107049][ T6205] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 224.207421][ T6206] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 224.255238][ T6210] loop0: detected capacity change from 0 to 32768
[ 224.277647][ T6206] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 224.293874][ T6210] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 224.308828][ T6210] CPU: 1 PID: 6210 Comm: syz.0.248 Not tainted syzkaller #0
[ 224.316173][ T6210] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 224.326323][ T6210] Call Trace:
[ 224.329610][ T6210]
[ 224.332542][ T6210] dump_stack_lvl+0x168/0x230
[ 224.337226][ T6210] ? show_regs_print_info+0x20/0x20
[ 224.342439][ T6210] ? load_image+0x3b0/0x3b0
[ 224.347064][ T6210] sysfs_create_dir_ns+0x252/0x280
[ 224.352193][ T6210] ? __lock_acquire+0x7c60/0x7c60
[ 224.357225][ T6210] ? sysfs_warn_dup+0xa0/0xa0
[ 224.361907][ T6210] ? do_raw_spin_unlock+0x11d/0x230
[ 224.367111][ T6210] kobject_add_internal+0x662/0xd00
[ 224.372321][ T6210] kobject_init_and_add+0x122/0x190
[ 224.377626][ T6210] ? lockdep_softirqs_off+0x420/0x420
[ 224.383004][ T6210] ? kobject_add+0x210/0x210
[ 224.387694][ T6210] ? __init_swait_queue_head+0xa5/0x150
[ 224.393335][ T6210] gfs2_sys_fs_add+0x234/0x480
[ 224.398101][ T6210] ? gfs2_recover_set+0x240/0x240
[ 224.402823][ T6212] loop5: detected capacity change from 0 to 32768
[ 224.403231][ T6210] ? snprintf+0xd7/0x120
[ 224.414383][ T6210] ? __free_pages+0x95/0x1a0
[ 224.418981][ T6210] ? vscnprintf+0x80/0x80
[ 224.423327][ T6210] gfs2_fill_super+0x128d/0x1f50
[ 224.428286][ T6210] ? gfs2_reconfigure+0xcd0/0xcd0
[ 224.433316][ T6210] ? preempt_count_add+0x8d/0x190
[ 224.438366][ T6210] ? sb_set_blocksize+0xa5/0xe0
[ 224.443236][ T6210] get_tree_bdev+0x3f1/0x610
[ 224.447833][ T6210] ? gfs2_reconfigure+0xcd0/0xcd0
[ 224.452953][ T6210] gfs2_get_tree+0x4d/0x1e0
[ 224.457467][ T6210] vfs_get_tree+0x88/0x270
[ 224.461898][ T6210] do_new_mount+0x24a/0xa40
[ 224.466428][ T6210] __se_sys_mount+0x2d6/0x3c0
[ 224.471122][ T6210] ? __x64_sys_mount+0xc0/0xc0
[ 224.475898][ T6210] ? lockdep_hardirqs_on+0x94/0x140
[ 224.481116][ T6210] ? __x64_sys_mount+0x1c/0xc0
[ 224.485894][ T6210] do_syscall_64+0x4c/0xa0
[ 224.490345][ T6210] ? clear_bhb_loop+0x30/0x80
[ 224.495034][ T6210] ? clear_bhb_loop+0x30/0x80
[ 224.499743][ T6210] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 224.505666][ T6210] RIP: 0033:0x7fd32b6a976a
[ 224.510206][ T6210] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 224.530485][ T6210] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 224.538931][ T6210] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 224.547007][ T6210] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 224.555008][ T6210] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 224.563023][ T6210] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 224.571027][ T6210] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 224.579117][ T6210]
[ 224.587625][ T6210] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 224.601120][ T6210] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 224.644393][ T6212] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 224.674571][ T6212] CPU: 0 PID: 6212 Comm: syz.5.249 Not tainted syzkaller #0
[ 224.681892][ T6212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 224.692134][ T6212] Call Trace:
[ 224.695433][ T6212]
[ 224.698487][ T6212] dump_stack_lvl+0x168/0x230
[ 224.703202][ T6212] ? show_regs_print_info+0x20/0x20
[ 224.708407][ T6212] ? load_image+0x3b0/0x3b0
[ 224.712997][ T6212] sysfs_create_dir_ns+0x252/0x280
[ 224.718130][ T6212] ? __lock_acquire+0x7c60/0x7c60
[ 224.723171][ T6212] ? sysfs_warn_dup+0xa0/0xa0
[ 224.727952][ T6212] ? do_raw_spin_unlock+0x11d/0x230
[ 224.733162][ T6212] kobject_add_internal+0x662/0xd00
[ 224.738380][ T6212] kobject_init_and_add+0x122/0x190
[ 224.743602][ T6212] ? lockdep_softirqs_off+0x420/0x420
[ 224.749253][ T6212] ? kobject_add+0x210/0x210
[ 224.753866][ T6212] ? __init_swait_queue_head+0xa5/0x150
[ 224.759426][ T6212] gfs2_sys_fs_add+0x234/0x480
[ 224.764205][ T6212] ? gfs2_recover_set+0x240/0x240
[ 224.769252][ T6212] ? snprintf+0xd7/0x120
[ 224.773507][ T6212] ? __free_pages+0x95/0x1a0
[ 224.778192][ T6212] ? vscnprintf+0x80/0x80
[ 224.782543][ T6212] gfs2_fill_super+0x128d/0x1f50
[ 224.787585][ T6212] ? gfs2_reconfigure+0xcd0/0xcd0
[ 224.792707][ T6212] ? preempt_count_add+0x8d/0x190
[ 224.797753][ T6212] ? sb_set_blocksize+0xa5/0xe0
[ 224.802702][ T6212] get_tree_bdev+0x3f1/0x610
[ 224.807304][ T6212] ? gfs2_reconfigure+0xcd0/0xcd0
[ 224.812421][ T6212] gfs2_get_tree+0x4d/0x1e0
[ 224.816932][ T6212] vfs_get_tree+0x88/0x270
[ 224.821378][ T6212] do_new_mount+0x24a/0xa40
[ 224.826079][ T6212] __se_sys_mount+0x2d6/0x3c0
[ 224.830772][ T6212] ? __x64_sys_mount+0xc0/0xc0
[ 224.835722][ T6212] ? lockdep_hardirqs_on+0x94/0x140
[ 224.840965][ T6212] ? __x64_sys_mount+0x1c/0xc0
[ 224.845743][ T6212] do_syscall_64+0x4c/0xa0
[ 224.850260][ T6212] ? clear_bhb_loop+0x30/0x80
[ 224.854951][ T6212] ? clear_bhb_loop+0x30/0x80
[ 224.859732][ T6212] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 224.865642][ T6212] RIP: 0033:0x7f6deb47c76a
[ 224.870125][ T6212] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 224.889822][ T6212] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 224.898247][ T6212] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 224.906317][ T6212] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 224.914308][ T6212] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 224.922384][ T6212] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 224.930460][ T6212] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 224.938468][ T6212]
[ 225.217566][ T6212] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 225.251403][ T6212] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 225.379977][ T6214] loop3: detected capacity change from 0 to 32768
[ 225.418500][ T6214] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 225.451313][ T6214] CPU: 0 PID: 6214 Comm: syz.3.250 Not tainted syzkaller #0
[ 225.458729][ T6214] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 225.468932][ T6214] Call Trace:
[ 225.472271][ T6214]
[ 225.475213][ T6214] dump_stack_lvl+0x168/0x230
[ 225.480005][ T6214] ? show_regs_print_info+0x20/0x20
[ 225.485218][ T6214] ? load_image+0x3b0/0x3b0
[ 225.489805][ T6214] sysfs_create_dir_ns+0x252/0x280
[ 225.494941][ T6214] ? __lock_acquire+0x7c60/0x7c60
[ 225.499989][ T6214] ? sysfs_warn_dup+0xa0/0xa0
[ 225.504775][ T6214] ? do_raw_spin_unlock+0x11d/0x230
[ 225.509998][ T6214] kobject_add_internal+0x662/0xd00
[ 225.515230][ T6214] kobject_init_and_add+0x122/0x190
[ 225.520448][ T6214] ? lockdep_softirqs_off+0x420/0x420
[ 225.525939][ T6214] ? kobject_add+0x210/0x210
[ 225.530638][ T6214] ? __init_swait_queue_head+0xa5/0x150
[ 225.536212][ T6214] gfs2_sys_fs_add+0x234/0x480
[ 225.541057][ T6214] ? gfs2_recover_set+0x240/0x240
[ 225.546105][ T6214] ? snprintf+0xd7/0x120
[ 225.550445][ T6214] ? __free_pages+0x95/0x1a0
[ 225.555061][ T6214] ? vscnprintf+0x80/0x80
[ 225.559415][ T6214] gfs2_fill_super+0x128d/0x1f50
[ 225.564465][ T6214] ? gfs2_reconfigure+0xcd0/0xcd0
[ 225.569506][ T6214] ? preempt_count_add+0x8d/0x190
[ 225.574638][ T6214] ? sb_set_blocksize+0xa5/0xe0
[ 225.579504][ T6214] get_tree_bdev+0x3f1/0x610
[ 225.584109][ T6214] ? gfs2_reconfigure+0xcd0/0xcd0
[ 225.589151][ T6214] gfs2_get_tree+0x4d/0x1e0
[ 225.593672][ T6214] vfs_get_tree+0x88/0x270
[ 225.598197][ T6214] do_new_mount+0x24a/0xa40
[ 225.602717][ T6214] __se_sys_mount+0x2d6/0x3c0
[ 225.607409][ T6214] ? __x64_sys_mount+0xc0/0xc0
[ 225.612197][ T6214] ? lockdep_hardirqs_on+0x94/0x140
[ 225.617409][ T6214] ? __x64_sys_mount+0x1c/0xc0
[ 225.622201][ T6214] do_syscall_64+0x4c/0xa0
[ 225.626626][ T6214] ? clear_bhb_loop+0x30/0x80
[ 225.631318][ T6214] ? clear_bhb_loop+0x30/0x80
[ 225.636107][ T6214] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 225.642019][ T6214] RIP: 0033:0x7fe7bdbd476a
[ 225.646517][ T6214] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 225.666141][ T6214] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 225.674567][ T6214] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 225.682551][ T6214] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 225.690537][ T6214] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 225.698534][ T6214] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 225.706526][ T6214] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 225.714614][ T6214]
[ 225.737459][ T6214] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 225.781609][ T6214] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 225.944607][ T6216] loop1: detected capacity change from 0 to 32768
[ 226.002285][ T6216] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 226.017330][ T6216] CPU: 1 PID: 6216 Comm: syz.1.251 Not tainted syzkaller #0
[ 226.024649][ T6216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 226.034712][ T6216] Call Trace:
[ 226.038085][ T6216]
[ 226.041032][ T6216] dump_stack_lvl+0x168/0x230
[ 226.045815][ T6216] ? show_regs_print_info+0x20/0x20
[ 226.051031][ T6216] ? load_image+0x3b0/0x3b0
[ 226.055551][ T6216] sysfs_create_dir_ns+0x252/0x280
[ 226.060678][ T6216] ? __lock_acquire+0x7c60/0x7c60
[ 226.062415][ T6219] loop0: detected capacity change from 0 to 32768
[ 226.065795][ T6216] ? sysfs_warn_dup+0xa0/0xa0
[ 226.065823][ T6216] ? do_raw_spin_unlock+0x11d/0x230
[ 226.082065][ T6216] kobject_add_internal+0x662/0xd00
[ 226.087280][ T6216] kobject_init_and_add+0x122/0x190
[ 226.092489][ T6216] ? lockdep_softirqs_off+0x420/0x420
[ 226.097883][ T6216] ? kobject_add+0x210/0x210
[ 226.102597][ T6216] ? __init_swait_queue_head+0xa5/0x150
[ 226.108241][ T6216] gfs2_sys_fs_add+0x234/0x480
[ 226.113193][ T6216] ? gfs2_recover_set+0x240/0x240
[ 226.118224][ T6216] ? snprintf+0xd7/0x120
[ 226.122575][ T6216] ? __free_pages+0x95/0x1a0
[ 226.127177][ T6216] ? vscnprintf+0x80/0x80
[ 226.131534][ T6216] gfs2_fill_super+0x128d/0x1f50
[ 226.136588][ T6216] ? gfs2_reconfigure+0xcd0/0xcd0
[ 226.141630][ T6216] ? preempt_count_add+0x8d/0x190
[ 226.146727][ T6216] ? sb_set_blocksize+0xa5/0xe0
[ 226.151694][ T6216] get_tree_bdev+0x3f1/0x610
[ 226.156285][ T6216] ? gfs2_reconfigure+0xcd0/0xcd0
[ 226.161396][ T6216] gfs2_get_tree+0x4d/0x1e0
[ 226.165915][ T6216] vfs_get_tree+0x88/0x270
[ 226.170340][ T6216] do_new_mount+0x24a/0xa40
[ 226.174856][ T6216] __se_sys_mount+0x2d6/0x3c0
[ 226.179546][ T6216] ? __x64_sys_mount+0xc0/0xc0
[ 226.184318][ T6216] ? lockdep_hardirqs_on+0x94/0x140
[ 226.189524][ T6216] ? __x64_sys_mount+0x1c/0xc0
[ 226.194645][ T6216] do_syscall_64+0x4c/0xa0
[ 226.199241][ T6216] ? clear_bhb_loop+0x30/0x80
[ 226.203928][ T6216] ? clear_bhb_loop+0x30/0x80
[ 226.208613][ T6216] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 226.214594][ T6216] RIP: 0033:0x7fc1174bd76a
[ 226.219013][ T6216] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 226.238887][ T6216] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 226.247325][ T6216] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 226.255403][ T6216] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 226.263394][ T6216] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 226.271554][ T6216] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 226.279623][ T6216] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 226.287620][ T6216]
[ 226.397357][ T6219] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 226.427473][ T6219] CPU: 0 PID: 6219 Comm: syz.0.252 Not tainted syzkaller #0
[ 226.434833][ T6219] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 226.444985][ T6219] Call Trace:
[ 226.448272][ T6219]
[ 226.451205][ T6219] dump_stack_lvl+0x168/0x230
[ 226.455992][ T6219] ? show_regs_print_info+0x20/0x20
[ 226.461209][ T6219] ? load_image+0x3b0/0x3b0
[ 226.465746][ T6219] sysfs_create_dir_ns+0x252/0x280
[ 226.470867][ T6219] ? __lock_acquire+0x7c60/0x7c60
[ 226.475900][ T6219] ? sysfs_warn_dup+0xa0/0xa0
[ 226.480590][ T6219] ? do_raw_spin_unlock+0x11d/0x230
[ 226.485883][ T6219] kobject_add_internal+0x662/0xd00
[ 226.491098][ T6219] kobject_init_and_add+0x122/0x190
[ 226.496304][ T6219] ? lockdep_softirqs_off+0x420/0x420
[ 226.501698][ T6219] ? kobject_add+0x210/0x210
[ 226.506303][ T6219] ? __init_swait_queue_head+0xa5/0x150
[ 226.511889][ T6219] gfs2_sys_fs_add+0x234/0x480
[ 226.516663][ T6219] ? gfs2_recover_set+0x240/0x240
[ 226.521691][ T6219] ? snprintf+0xd7/0x120
[ 226.525954][ T6219] ? __free_pages+0x95/0x1a0
[ 226.530689][ T6219] ? vscnprintf+0x80/0x80
[ 226.535135][ T6219] gfs2_fill_super+0x128d/0x1f50
[ 226.540096][ T6219] ? gfs2_reconfigure+0xcd0/0xcd0
[ 226.545138][ T6219] ? preempt_count_add+0x8d/0x190
[ 226.550178][ T6219] ? sb_set_blocksize+0xa5/0xe0
[ 226.555037][ T6219] get_tree_bdev+0x3f1/0x610
[ 226.559732][ T6219] ? gfs2_reconfigure+0xcd0/0xcd0
[ 226.564855][ T6219] gfs2_get_tree+0x4d/0x1e0
[ 226.569372][ T6219] vfs_get_tree+0x88/0x270
[ 226.573802][ T6219] do_new_mount+0x24a/0xa40
[ 226.578319][ T6219] __se_sys_mount+0x2d6/0x3c0
[ 226.583011][ T6219] ? __x64_sys_mount+0xc0/0xc0
[ 226.584004][ T6220] loop2: detected capacity change from 0 to 32768
[ 226.587892][ T6219] ? lockdep_hardirqs_on+0x94/0x140
[ 226.587913][ T6219] ? __x64_sys_mount+0x1c/0xc0
[ 226.587933][ T6219] do_syscall_64+0x4c/0xa0
[ 226.587948][ T6219] ? clear_bhb_loop+0x30/0x80
[ 226.587966][ T6219] ? clear_bhb_loop+0x30/0x80
[ 226.587984][ T6219] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 226.588002][ T6219] RIP: 0033:0x7fd32b6a976a
[ 226.588021][ T6219] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 226.588037][ T6219] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 226.588055][ T6219] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 226.662164][ T6222] loop5: detected capacity change from 0 to 32768
[ 226.664707][ T6219] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 226.664724][ T6219] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 226.664737][ T6219] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 226.673422][ T6216] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 226.679084][ T6219] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 226.679112][ T6219]
[ 226.729359][ T6216] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 226.746320][ T6222] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 226.755283][ T6222] CPU: 1 PID: 6222 Comm: syz.5.254 Not tainted syzkaller #0
[ 226.762702][ T6222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 226.772765][ T6222] Call Trace:
[ 226.776047][ T6222]
[ 226.779065][ T6222] dump_stack_lvl+0x168/0x230
[ 226.783761][ T6222] ? show_regs_print_info+0x20/0x20
[ 226.788977][ T6222] ? load_image+0x3b0/0x3b0
[ 226.793586][ T6222] sysfs_create_dir_ns+0x252/0x280
[ 226.798827][ T6222] ? __lock_acquire+0x7c60/0x7c60
[ 226.804067][ T6222] ? sysfs_warn_dup+0xa0/0xa0
[ 226.808765][ T6222] ? do_raw_spin_unlock+0x11d/0x230
[ 226.813981][ T6222] kobject_add_internal+0x662/0xd00
[ 226.819191][ T6222] kobject_init_and_add+0x122/0x190
[ 226.824403][ T6222] ? lockdep_softirqs_off+0x420/0x420
[ 226.829876][ T6222] ? kobject_add+0x210/0x210
[ 226.834479][ T6222] ? __init_swait_queue_head+0xa5/0x150
[ 226.840045][ T6222] gfs2_sys_fs_add+0x234/0x480
[ 226.844833][ T6222] ? gfs2_recover_set+0x240/0x240
[ 226.849877][ T6222] ? snprintf+0xd7/0x120
[ 226.854142][ T6222] ? __free_pages+0x95/0x1a0
[ 226.858747][ T6222] ? vscnprintf+0x80/0x80
[ 226.863091][ T6222] gfs2_fill_super+0x128d/0x1f50
[ 226.868048][ T6222] ? gfs2_reconfigure+0xcd0/0xcd0
[ 226.873074][ T6222] ? preempt_count_add+0x8d/0x190
[ 226.878115][ T6222] ? sb_set_blocksize+0xa5/0xe0
[ 226.882991][ T6222] get_tree_bdev+0x3f1/0x610
[ 226.887604][ T6222] ? gfs2_reconfigure+0xcd0/0xcd0
[ 226.892639][ T6222] gfs2_get_tree+0x4d/0x1e0
[ 226.897159][ T6222] vfs_get_tree+0x88/0x270
[ 226.901588][ T6222] do_new_mount+0x24a/0xa40
[ 226.906196][ T6222] __se_sys_mount+0x2d6/0x3c0
[ 226.910890][ T6222] ? __x64_sys_mount+0xc0/0xc0
[ 226.915667][ T6222] ? lockdep_hardirqs_on+0x94/0x140
[ 226.920921][ T6222] ? __x64_sys_mount+0x1c/0xc0
[ 226.925714][ T6222] do_syscall_64+0x4c/0xa0
[ 226.930223][ T6222] ? clear_bhb_loop+0x30/0x80
[ 226.934915][ T6222] ? clear_bhb_loop+0x30/0x80
[ 226.939601][ T6222] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 226.945498][ T6222] RIP: 0033:0x7f6deb47c76a
[ 226.949922][ T6222] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 226.969621][ T6222] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 226.978053][ T6222] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 226.986037][ T6222] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 226.994106][ T6222] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 227.002080][ T6222] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 227.010056][ T6222] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 227.018048][ T6222]
[ 227.034389][ T6220] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 227.042462][ T6220] CPU: 1 PID: 6220 Comm: syz.2.253 Not tainted syzkaller #0
[ 227.049851][ T6220] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 227.059917][ T6220] Call Trace:
[ 227.063198][ T6220]
[ 227.063847][ T6224] loop3: detected capacity change from 0 to 32768
[ 227.066129][ T6220] dump_stack_lvl+0x168/0x230
[ 227.066157][ T6220] ? show_regs_print_info+0x20/0x20
[ 227.082508][ T6220] ? load_image+0x3b0/0x3b0
[ 227.087037][ T6220] sysfs_create_dir_ns+0x252/0x280
[ 227.092170][ T6220] ? __lock_acquire+0x7c60/0x7c60
[ 227.097386][ T6220] ? sysfs_warn_dup+0xa0/0xa0
[ 227.102081][ T6220] ? do_raw_spin_unlock+0x11d/0x230
[ 227.107287][ T6220] kobject_add_internal+0x662/0xd00
[ 227.112498][ T6220] kobject_init_and_add+0x122/0x190
[ 227.117704][ T6220] ? lockdep_softirqs_off+0x420/0x420
[ 227.123093][ T6220] ? kobject_add+0x210/0x210
[ 227.127332][ T6219] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 227.127894][ T6220] ? __init_swait_queue_head+0xa5/0x150
[ 227.127922][ T6220] gfs2_sys_fs_add+0x234/0x480
[ 227.127943][ T6220] ? gfs2_recover_set+0x240/0x240
[ 227.156752][ T6220] ? snprintf+0xd7/0x120
[ 227.159499][ T6224] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 227.161022][ T6220] ? __free_pages+0x95/0x1a0
[ 227.172951][ T6220] ? vscnprintf+0x80/0x80
[ 227.177301][ T6220] gfs2_fill_super+0x128d/0x1f50
[ 227.182473][ T6220] ? gfs2_reconfigure+0xcd0/0xcd0
[ 227.187510][ T6220] ? preempt_count_add+0x8d/0x190
[ 227.192554][ T6220] ? sb_set_blocksize+0xa5/0xe0
[ 227.197454][ T6220] get_tree_bdev+0x3f1/0x610
[ 227.202051][ T6220] ? gfs2_reconfigure+0xcd0/0xcd0
[ 227.207174][ T6220] gfs2_get_tree+0x4d/0x1e0
[ 227.209953][ T6219] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 227.211684][ T6220] vfs_get_tree+0x88/0x270
[ 227.211710][ T6220] do_new_mount+0x24a/0xa40
[ 227.211734][ T6220] __se_sys_mount+0x2d6/0x3c0
[ 227.211756][ T6220] ? __x64_sys_mount+0xc0/0xc0
[ 227.211777][ T6220] ? lockdep_hardirqs_on+0x94/0x140
[ 227.211796][ T6220] ? __x64_sys_mount+0x1c/0xc0
[ 227.211823][ T6220] do_syscall_64+0x4c/0xa0
[ 227.211840][ T6220] ? clear_bhb_loop+0x30/0x80
[ 227.211859][ T6220] ? clear_bhb_loop+0x30/0x80
[ 227.211878][ T6220] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 227.211897][ T6220] RIP: 0033:0x7fbbe852676a
[ 227.211915][ T6220] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 227.211931][ T6220] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 227.211951][ T6220] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 227.211965][ T6220] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 227.211978][ T6220] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 227.211991][ T6220] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 227.212004][ T6220] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 227.212031][ T6220]
[ 227.218324][ T6224] CPU: 1 PID: 6224 Comm: syz.3.255 Not tainted syzkaller #0
[ 227.312867][ T6222] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 227.315599][ T6224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 227.315612][ T6224] Call Trace:
[ 227.315618][ T6224]
[ 227.315626][ T6224] dump_stack_lvl+0x168/0x230
[ 227.315652][ T6224] ? show_regs_print_info+0x20/0x20
[ 227.315669][ T6224] ? load_image+0x3b0/0x3b0
[ 227.315704][ T6224] sysfs_create_dir_ns+0x252/0x280
[ 227.315726][ T6224] ? __lock_acquire+0x7c60/0x7c60
[ 227.315746][ T6224] ? sysfs_warn_dup+0xa0/0xa0
[ 227.315770][ T6224] ? do_raw_spin_unlock+0x11d/0x230
[ 227.315791][ T6224] kobject_add_internal+0x662/0xd00
[ 227.315824][ T6224] kobject_init_and_add+0x122/0x190
[ 227.315842][ T6224] ? lockdep_softirqs_off+0x420/0x420
[ 227.315864][ T6224] ? kobject_add+0x210/0x210
[ 227.315886][ T6224] ? __init_swait_queue_head+0xa5/0x150
[ 227.315914][ T6224] gfs2_sys_fs_add+0x234/0x480
[ 227.315935][ T6224] ? gfs2_recover_set+0x240/0x240
[ 227.315953][ T6224] ? snprintf+0xd7/0x120
[ 227.315972][ T6224] ? __free_pages+0x95/0x1a0
[ 227.315994][ T6224] ? vscnprintf+0x80/0x80
[ 227.316025][ T6224] gfs2_fill_super+0x128d/0x1f50
[ 227.316056][ T6224] ? gfs2_reconfigure+0xcd0/0xcd0
[ 227.316078][ T6224] ? preempt_count_add+0x8d/0x190
[ 227.316108][ T6224] ? sb_set_blocksize+0xa5/0xe0
[ 227.316130][ T6224] get_tree_bdev+0x3f1/0x610
[ 227.316151][ T6224] ? gfs2_reconfigure+0xcd0/0xcd0
[ 227.316170][ T6224] gfs2_get_tree+0x4d/0x1e0
[ 227.324994][ T6222] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 227.332187][ T6224] vfs_get_tree+0x88/0x270
[ 227.332215][ T6224] do_new_mount+0x24a/0xa40
[ 227.344137][ T6220] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 227.350494][ T6224] __se_sys_mount+0x2d6/0x3c0
[ 227.350523][ T6224] ? __x64_sys_mount+0xc0/0xc0
[ 227.350543][ T6224] ? lockdep_hardirqs_on+0x94/0x140
[ 227.364215][ T6220] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 227.373657][ T6224] ? __x64_sys_mount+0x1c/0xc0
[ 227.373686][ T6224] do_syscall_64+0x4c/0xa0
[ 227.373703][ T6224] ? clear_bhb_loop+0x30/0x80
[ 227.373720][ T6224] ? clear_bhb_loop+0x30/0x80
[ 227.373736][ T6224] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 227.373753][ T6224] RIP: 0033:0x7fe7bdbd476a
[ 227.373771][ T6224] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 227.373787][ T6224] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 227.373813][ T6224] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 227.373825][ T6224] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 227.373838][ T6224] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 227.373849][ T6224] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 227.373861][ T6224] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 227.373889][ T6224]
[ 227.384881][ T6224] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 227.662468][ T6224] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 228.845033][ T6230] loop2: detected capacity change from 0 to 32768
[ 228.871069][ T6228] loop0: detected capacity change from 0 to 32768
[ 228.891419][ T6230] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 228.906990][ T6226] loop1: detected capacity change from 0 to 32768
[ 228.926546][ T6230] CPU: 1 PID: 6230 Comm: syz.2.258 Not tainted syzkaller #0
[ 228.933875][ T6230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 228.944044][ T6230] Call Trace:
[ 228.947333][ T6230]
[ 228.950271][ T6230] dump_stack_lvl+0x168/0x230
[ 228.954964][ T6230] ? show_regs_print_info+0x20/0x20
[ 228.960184][ T6230] ? load_image+0x3b0/0x3b0
[ 228.964707][ T6230] sysfs_create_dir_ns+0x252/0x280
[ 228.969843][ T6230] ? __lock_acquire+0x7c60/0x7c60
[ 228.974891][ T6230] ? sysfs_warn_dup+0xa0/0xa0
[ 228.979682][ T6230] ? do_raw_spin_unlock+0x11d/0x230
[ 228.984892][ T6230] kobject_add_internal+0x662/0xd00
[ 228.990108][ T6230] kobject_init_and_add+0x122/0x190
[ 228.995400][ T6230] ? lockdep_softirqs_off+0x420/0x420
[ 229.000791][ T6230] ? kobject_add+0x210/0x210
[ 229.005397][ T6230] ? __init_swait_queue_head+0xa5/0x150
[ 229.010957][ T6230] gfs2_sys_fs_add+0x234/0x480
[ 229.015829][ T6230] ? gfs2_recover_set+0x240/0x240
[ 229.020866][ T6230] ? snprintf+0xd7/0x120
[ 229.025318][ T6230] ? __free_pages+0x95/0x1a0
[ 229.030043][ T6230] ? vscnprintf+0x80/0x80
[ 229.034486][ T6230] gfs2_fill_super+0x128d/0x1f50
[ 229.036576][ T6228] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 229.039536][ T6230] ? gfs2_reconfigure+0xcd0/0xcd0
[ 229.039564][ T6230] ? preempt_count_add+0x8d/0x190
[ 229.057294][ T6230] ? sb_set_blocksize+0xa5/0xe0
[ 229.062160][ T6230] get_tree_bdev+0x3f1/0x610
[ 229.066773][ T6230] ? gfs2_reconfigure+0xcd0/0xcd0
[ 229.071803][ T6230] gfs2_get_tree+0x4d/0x1e0
[ 229.076317][ T6230] vfs_get_tree+0x88/0x270
[ 229.080771][ T6230] do_new_mount+0x24a/0xa40
[ 229.085377][ T6230] __se_sys_mount+0x2d6/0x3c0
[ 229.090135][ T6230] ? __x64_sys_mount+0xc0/0xc0
[ 229.094905][ T6230] ? lockdep_hardirqs_on+0x94/0x140
[ 229.096258][ T6234] loop5: detected capacity change from 0 to 32768
[ 229.100187][ T6230] ? __x64_sys_mount+0x1c/0xc0
[ 229.100210][ T6230] do_syscall_64+0x4c/0xa0
[ 229.100226][ T6230] ? clear_bhb_loop+0x30/0x80
[ 229.100243][ T6230] ? clear_bhb_loop+0x30/0x80
[ 229.100261][ T6230] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 229.131149][ T6230] RIP: 0033:0x7fbbe852676a
[ 229.135687][ T6230] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 229.155469][ T6230] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 229.163982][ T6230] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 229.166694][ T6232] loop3: detected capacity change from 0 to 32768
[ 229.171991][ T6230] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 229.172006][ T6230] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 229.172017][ T6230] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 229.172027][ T6230] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 229.172052][ T6230]
[ 229.221505][ T6228] CPU: 0 PID: 6228 Comm: syz.0.257 Not tainted syzkaller #0
[ 229.228828][ T6228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 229.239066][ T6228] Call Trace:
[ 229.242345][ T6228]
[ 229.245369][ T6228] dump_stack_lvl+0x168/0x230
[ 229.250231][ T6228] ? show_regs_print_info+0x20/0x20
[ 229.255435][ T6228] ? load_image+0x3b0/0x3b0
[ 229.259971][ T6228] sysfs_create_dir_ns+0x252/0x280
[ 229.260334][ T6230] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 229.265094][ T6228] ? __lock_acquire+0x7c60/0x7c60
[ 229.265118][ T6228] ? sysfs_warn_dup+0xa0/0xa0
[ 229.265141][ T6228] ? do_raw_spin_unlock+0x11d/0x230
[ 229.265161][ T6228] kobject_add_internal+0x662/0xd00
[ 229.284242][ T6230] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 229.288040][ T6228] kobject_init_and_add+0x122/0x190
[ 229.288062][ T6228] ? lockdep_softirqs_off+0x420/0x420
[ 229.288085][ T6228] ? kobject_add+0x210/0x210
[ 229.288104][ T6228] ? __init_swait_queue_head+0xa5/0x150
[ 229.288126][ T6228] gfs2_sys_fs_add+0x234/0x480
[ 229.288144][ T6228] ? gfs2_recover_set+0x240/0x240
[ 229.336599][ T6228] ? snprintf+0xd7/0x120
[ 229.340876][ T6228] ? __free_pages+0x95/0x1a0
2025/12/08 15:47:15 executed programs: 254
[ 229.345575][ T6228] ? vscnprintf+0x80/0x80
[ 229.349926][ T6228] gfs2_fill_super+0x128d/0x1f50
[ 229.354963][ T6228] ? gfs2_reconfigure+0xcd0/0xcd0
[ 229.359996][ T6228] ? preempt_count_add+0x8d/0x190
[ 229.365121][ T6228] ? sb_set_blocksize+0xa5/0xe0
[ 229.370007][ T6228] get_tree_bdev+0x3f1/0x610
[ 229.374590][ T6228] ? gfs2_reconfigure+0xcd0/0xcd0
[ 229.379608][ T6228] gfs2_get_tree+0x4d/0x1e0
[ 229.384122][ T6228] vfs_get_tree+0x88/0x270
[ 229.388795][ T6228] do_new_mount+0x24a/0xa40
[ 229.393311][ T6228] __se_sys_mount+0x2d6/0x3c0
[ 229.398005][ T6228] ? __x64_sys_mount+0xc0/0xc0
[ 229.402786][ T6228] ? lockdep_hardirqs_on+0x94/0x140
[ 229.407982][ T6228] ? __x64_sys_mount+0x1c/0xc0
[ 229.412823][ T6228] do_syscall_64+0x4c/0xa0
[ 229.417228][ T6228] ? clear_bhb_loop+0x30/0x80
[ 229.421903][ T6228] ? clear_bhb_loop+0x30/0x80
[ 229.426664][ T6228] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 229.432554][ T6228] RIP: 0033:0x7fd32b6a976a
[ 229.436957][ T6228] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 229.456824][ T6228] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 229.465227][ T6228] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 229.473275][ T6228] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 229.481252][ T6228] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 229.489313][ T6228] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 229.497277][ T6228] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 229.505256][ T6228]
[ 229.509643][ T6228] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 229.535207][ T6226] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 229.560957][ T6232] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 229.561733][ T6234] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 229.577323][ T6228] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 229.583961][ T6232] CPU: 1 PID: 6232 Comm: syz.3.259 Not tainted syzkaller #0
[ 229.591285][ T6232] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 229.601416][ T6232] Call Trace:
[ 229.604703][ T6232]
[ 229.607639][ T6232] dump_stack_lvl+0x168/0x230
[ 229.612323][ T6232] ? show_regs_print_info+0x20/0x20
[ 229.617528][ T6232] ? load_image+0x3b0/0x3b0
[ 229.622058][ T6232] sysfs_create_dir_ns+0x252/0x280
[ 229.627174][ T6232] ? __lock_acquire+0x7c60/0x7c60
[ 229.632197][ T6232] ? sysfs_warn_dup+0xa0/0xa0
[ 229.636910][ T6232] ? do_raw_spin_unlock+0x11d/0x230
[ 229.642212][ T6232] kobject_add_internal+0x662/0xd00
[ 229.647519][ T6232] kobject_init_and_add+0x122/0x190
[ 229.652711][ T6232] ? lockdep_softirqs_off+0x420/0x420
[ 229.658088][ T6232] ? kobject_add+0x210/0x210
[ 229.662952][ T6232] ? __init_swait_queue_head+0xa5/0x150
[ 229.668510][ T6232] gfs2_sys_fs_add+0x234/0x480
[ 229.673321][ T6232] ? gfs2_recover_set+0x240/0x240
[ 229.678354][ T6232] ? snprintf+0xd7/0x120
[ 229.682694][ T6232] ? __free_pages+0x95/0x1a0
[ 229.687377][ T6232] ? vscnprintf+0x80/0x80
[ 229.691718][ T6232] gfs2_fill_super+0x128d/0x1f50
[ 229.696677][ T6232] ? gfs2_reconfigure+0xcd0/0xcd0
[ 229.701786][ T6232] ? preempt_count_add+0x8d/0x190
[ 229.706921][ T6232] ? sb_set_blocksize+0xa5/0xe0
[ 229.711892][ T6232] get_tree_bdev+0x3f1/0x610
[ 229.716488][ T6232] ? gfs2_reconfigure+0xcd0/0xcd0
[ 229.721509][ T6232] gfs2_get_tree+0x4d/0x1e0
[ 229.726040][ T6232] vfs_get_tree+0x88/0x270
[ 229.730469][ T6232] do_new_mount+0x24a/0xa40
[ 229.735082][ T6232] __se_sys_mount+0x2d6/0x3c0
[ 229.739885][ T6232] ? __x64_sys_mount+0xc0/0xc0
[ 229.744671][ T6232] ? lockdep_hardirqs_on+0x94/0x140
[ 229.749897][ T6232] ? __x64_sys_mount+0x1c/0xc0
[ 229.754761][ T6232] do_syscall_64+0x4c/0xa0
[ 229.759181][ T6232] ? clear_bhb_loop+0x30/0x80
[ 229.763904][ T6232] ? clear_bhb_loop+0x30/0x80
[ 229.768587][ T6232] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 229.774484][ T6232] RIP: 0033:0x7fe7bdbd476a
[ 229.778912][ T6232] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 229.798613][ T6232] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 229.807164][ T6232] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 229.815155][ T6232] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 229.823134][ T6232] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 229.831278][ T6232] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 229.839243][ T6232] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 229.847256][ T6232]
[ 229.885348][ T6234] CPU: 0 PID: 6234 Comm: syz.5.260 Not tainted syzkaller #0
[ 229.892683][ T6234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 229.902743][ T6234] Call Trace:
[ 229.906034][ T6234]
[ 229.908975][ T6234] dump_stack_lvl+0x168/0x230
[ 229.913668][ T6234] ? show_regs_print_info+0x20/0x20
[ 229.919056][ T6234] ? load_image+0x3b0/0x3b0
[ 229.923578][ T6234] sysfs_create_dir_ns+0x252/0x280
[ 229.928706][ T6234] ? __lock_acquire+0x7c60/0x7c60
[ 229.933749][ T6234] ? sysfs_warn_dup+0xa0/0xa0
[ 229.938442][ T6234] ? do_raw_spin_unlock+0x11d/0x230
[ 229.943663][ T6234] kobject_add_internal+0x662/0xd00
[ 229.948891][ T6234] kobject_init_and_add+0x122/0x190
[ 229.954177][ T6234] ? lockdep_softirqs_off+0x420/0x420
[ 229.959564][ T6234] ? kobject_add+0x210/0x210
[ 229.964259][ T6234] ? __init_swait_queue_head+0xa5/0x150
[ 229.969875][ T6234] gfs2_sys_fs_add+0x234/0x480
[ 229.974658][ T6234] ? gfs2_recover_set+0x240/0x240
[ 229.979693][ T6234] ? snprintf+0xd7/0x120
[ 229.983954][ T6234] ? __free_pages+0x95/0x1a0
[ 229.988562][ T6234] ? vscnprintf+0x80/0x80
[ 229.992997][ T6234] gfs2_fill_super+0x128d/0x1f50
[ 229.997973][ T6234] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.003010][ T6234] ? preempt_count_add+0x8d/0x190
[ 230.008052][ T6234] ? sb_set_blocksize+0xa5/0xe0
[ 230.012919][ T6234] get_tree_bdev+0x3f1/0x610
[ 230.017534][ T6234] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.022663][ T6234] gfs2_get_tree+0x4d/0x1e0
[ 230.027184][ T6234] vfs_get_tree+0x88/0x270
[ 230.031623][ T6234] do_new_mount+0x24a/0xa40
[ 230.036148][ T6234] __se_sys_mount+0x2d6/0x3c0
[ 230.040852][ T6234] ? __x64_sys_mount+0xc0/0xc0
[ 230.045632][ T6234] ? lockdep_hardirqs_on+0x94/0x140
[ 230.050829][ T6234] ? __x64_sys_mount+0x1c/0xc0
[ 230.055597][ T6234] do_syscall_64+0x4c/0xa0
[ 230.060072][ T6234] ? clear_bhb_loop+0x30/0x80
[ 230.064766][ T6234] ? clear_bhb_loop+0x30/0x80
[ 230.069445][ T6234] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 230.075421][ T6234] RIP: 0033:0x7f6deb47c76a
[ 230.079922][ T6234] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 230.099630][ T6234] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 230.108217][ T6234] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 230.116197][ T6234] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 230.124176][ T6234] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 230.132236][ T6234] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 230.140296][ T6234] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 230.148302][ T6234]
[ 230.151322][ T6226] CPU: 1 PID: 6226 Comm: syz.1.256 Not tainted syzkaller #0
[ 230.158613][ T6226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 230.162918][ T6234] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 230.168678][ T6226] Call Trace:
[ 230.168689][ T6226]
[ 230.168696][ T6226] dump_stack_lvl+0x168/0x230
[ 230.168722][ T6226] ? show_regs_print_info+0x20/0x20
[ 230.168739][ T6226] ? load_image+0x3b0/0x3b0
[ 230.168769][ T6226] sysfs_create_dir_ns+0x252/0x280
[ 230.168791][ T6226] ? __lock_acquire+0x7c60/0x7c60
[ 230.168813][ T6226] ? sysfs_warn_dup+0xa0/0xa0
[ 230.168836][ T6226] ? do_raw_spin_unlock+0x11d/0x230
[ 230.168858][ T6226] kobject_add_internal+0x662/0xd00
[ 230.168883][ T6226] kobject_init_and_add+0x122/0x190
[ 230.168900][ T6226] ? lockdep_softirqs_off+0x420/0x420
[ 230.168922][ T6226] ? kobject_add+0x210/0x210
[ 230.182746][ T6234] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 230.185300][ T6226] ? __init_swait_queue_head+0xa5/0x150
[ 230.190815][ T6232] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 230.192862][ T6226] gfs2_sys_fs_add+0x234/0x480
[ 230.192887][ T6226] ? gfs2_recover_set+0x240/0x240
[ 230.192905][ T6226] ? snprintf+0xd7/0x120
[ 230.213521][ T6232] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 230.217598][ T6226] ? __free_pages+0x95/0x1a0
[ 230.217627][ T6226] ? vscnprintf+0x80/0x80
[ 230.217656][ T6226] gfs2_fill_super+0x128d/0x1f50
[ 230.303046][ T6226] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.308186][ T6226] ? preempt_count_add+0x8d/0x190
[ 230.313324][ T6226] ? sb_set_blocksize+0xa5/0xe0
[ 230.318196][ T6226] get_tree_bdev+0x3f1/0x610
[ 230.322799][ T6226] ? gfs2_reconfigure+0xcd0/0xcd0
[ 230.327923][ T6226] gfs2_get_tree+0x4d/0x1e0
[ 230.332440][ T6226] vfs_get_tree+0x88/0x270
[ 230.336875][ T6226] do_new_mount+0x24a/0xa40
[ 230.341395][ T6226] __se_sys_mount+0x2d6/0x3c0
[ 230.346178][ T6226] ? __x64_sys_mount+0xc0/0xc0
[ 230.350961][ T6226] ? lockdep_hardirqs_on+0x94/0x140
[ 230.356263][ T6226] ? __x64_sys_mount+0x1c/0xc0
[ 230.361045][ T6226] do_syscall_64+0x4c/0xa0
[ 230.365464][ T6226] ? clear_bhb_loop+0x30/0x80
[ 230.370403][ T6226] ? clear_bhb_loop+0x30/0x80
[ 230.375115][ T6226] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 230.381036][ T6226] RIP: 0033:0x7fc1174bd76a
[ 230.385633][ T6226] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 230.405255][ T6226] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 230.413685][ T6226] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 230.421752][ T6226] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 230.429739][ T6226] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 230.437735][ T6226] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 230.445724][ T6226] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 230.453737][ T6226]
[ 230.514891][ T6226] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 230.537454][ T6226] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 231.012487][ T6236] loop2: detected capacity change from 0 to 32768
[ 231.076365][ T6236] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 231.085164][ T6236] CPU: 0 PID: 6236 Comm: syz.2.261 Not tainted syzkaller #0
[ 231.092477][ T6236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 231.102634][ T6236] Call Trace:
[ 231.105921][ T6236]
[ 231.108857][ T6236] dump_stack_lvl+0x168/0x230
[ 231.113558][ T6236] ? show_regs_print_info+0x20/0x20
[ 231.118765][ T6236] ? load_image+0x3b0/0x3b0
[ 231.123285][ T6236] sysfs_create_dir_ns+0x252/0x280
[ 231.128405][ T6236] ? __lock_acquire+0x7c60/0x7c60
[ 231.133442][ T6236] ? sysfs_warn_dup+0xa0/0xa0
[ 231.138135][ T6236] ? do_raw_spin_unlock+0x11d/0x230
[ 231.143431][ T6236] kobject_add_internal+0x662/0xd00
[ 231.148650][ T6236] kobject_init_and_add+0x122/0x190
[ 231.153952][ T6236] ? lockdep_softirqs_off+0x420/0x420
[ 231.159339][ T6236] ? kobject_add+0x210/0x210
[ 231.163937][ T6236] ? __init_swait_queue_head+0xa5/0x150
[ 231.165203][ T6238] loop3: detected capacity change from 0 to 32768
[ 231.169570][ T6236] gfs2_sys_fs_add+0x234/0x480
[ 231.169593][ T6236] ? gfs2_recover_set+0x240/0x240
[ 231.169610][ T6236] ? snprintf+0xd7/0x120
[ 231.169627][ T6236] ? __free_pages+0x95/0x1a0
[ 231.169648][ T6236] ? vscnprintf+0x80/0x80
[ 231.199100][ T6236] gfs2_fill_super+0x128d/0x1f50
[ 231.204152][ T6236] ? gfs2_reconfigure+0xcd0/0xcd0
[ 231.209199][ T6236] ? preempt_count_add+0x8d/0x190
[ 231.214261][ T6236] ? sb_set_blocksize+0xa5/0xe0
[ 231.219322][ T6236] get_tree_bdev+0x3f1/0x610
[ 231.223923][ T6236] ? gfs2_reconfigure+0xcd0/0xcd0
[ 231.229050][ T6236] gfs2_get_tree+0x4d/0x1e0
[ 231.233567][ T6236] vfs_get_tree+0x88/0x270
[ 231.237994][ T6236] do_new_mount+0x24a/0xa40
[ 231.242516][ T6236] __se_sys_mount+0x2d6/0x3c0
[ 231.247220][ T6236] ? __x64_sys_mount+0xc0/0xc0
[ 231.252007][ T6236] ? lockdep_hardirqs_on+0x94/0x140
[ 231.257224][ T6236] ? __x64_sys_mount+0x1c/0xc0
[ 231.262005][ T6236] do_syscall_64+0x4c/0xa0
[ 231.266433][ T6236] ? clear_bhb_loop+0x30/0x80
[ 231.271115][ T6236] ? clear_bhb_loop+0x30/0x80
[ 231.275800][ T6236] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 231.281820][ T6236] RIP: 0033:0x7fbbe852676a
[ 231.286239][ T6236] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 231.306019][ T6236] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 231.314445][ T6236] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 231.322433][ T6236] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 231.330414][ T6236] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 231.338399][ T6236] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 231.346472][ T6236] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 231.354556][ T6236]
[ 231.420560][ T6238] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 231.439021][ T6238] CPU: 1 PID: 6238 Comm: syz.3.262 Not tainted syzkaller #0
[ 231.446341][ T6238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 231.456677][ T6238] Call Trace:
[ 231.459980][ T6238]
[ 231.462915][ T6238] dump_stack_lvl+0x168/0x230
[ 231.467607][ T6238] ? show_regs_print_info+0x20/0x20
[ 231.472819][ T6238] ? load_image+0x3b0/0x3b0
[ 231.477347][ T6238] sysfs_create_dir_ns+0x252/0x280
[ 231.482471][ T6238] ? __lock_acquire+0x7c60/0x7c60
[ 231.487505][ T6238] ? sysfs_warn_dup+0xa0/0xa0
[ 231.492189][ T6238] ? do_raw_spin_unlock+0x11d/0x230
[ 231.497389][ T6238] kobject_add_internal+0x662/0xd00
[ 231.502598][ T6238] kobject_init_and_add+0x122/0x190
[ 231.507884][ T6238] ? lockdep_softirqs_off+0x420/0x420
[ 231.513401][ T6238] ? kobject_add+0x210/0x210
[ 231.518012][ T6238] ? __init_swait_queue_head+0xa5/0x150
[ 231.523578][ T6238] gfs2_sys_fs_add+0x234/0x480
[ 231.528371][ T6238] ? gfs2_recover_set+0x240/0x240
[ 231.533406][ T6238] ? snprintf+0xd7/0x120
[ 231.537669][ T6238] ? __free_pages+0x95/0x1a0
[ 231.542546][ T6238] ? vscnprintf+0x80/0x80
[ 231.547105][ T6238] gfs2_fill_super+0x128d/0x1f50
[ 231.552072][ T6238] ? gfs2_reconfigure+0xcd0/0xcd0
[ 231.557110][ T6238] ? preempt_count_add+0x8d/0x190
[ 231.562160][ T6238] ? sb_set_blocksize+0xa5/0xe0
[ 231.567040][ T6238] get_tree_bdev+0x3f1/0x610
[ 231.571647][ T6238] ? gfs2_reconfigure+0xcd0/0xcd0
[ 231.576683][ T6238] gfs2_get_tree+0x4d/0x1e0
[ 231.581209][ T6238] vfs_get_tree+0x88/0x270
[ 231.585735][ T6238] do_new_mount+0x24a/0xa40
[ 231.590263][ T6238] __se_sys_mount+0x2d6/0x3c0
[ 231.594962][ T6238] ? __x64_sys_mount+0xc0/0xc0
[ 231.599740][ T6238] ? lockdep_hardirqs_on+0x94/0x140
[ 231.604950][ T6238] ? __x64_sys_mount+0x1c/0xc0
[ 231.609826][ T6238] do_syscall_64+0x4c/0xa0
[ 231.614381][ T6238] ? clear_bhb_loop+0x30/0x80
[ 231.619067][ T6238] ? clear_bhb_loop+0x30/0x80
[ 231.623757][ T6238] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 231.629661][ T6238] RIP: 0033:0x7fe7bdbd476a
[ 231.634092][ T6238] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 231.653795][ T6238] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 231.662230][ T6238] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 231.670216][ T6238] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 231.678202][ T6238] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 231.686185][ T6238] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 231.694524][ T6238] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 231.702620][ T6238]
[ 231.727415][ T6236] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 231.757357][ T6236] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 231.842221][ T6241] loop5: detected capacity change from 0 to 32768
[ 231.915976][ T6244] loop1: detected capacity change from 0 to 32768
[ 231.926671][ T6241] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 231.956494][ T6241] CPU: 0 PID: 6241 Comm: syz.5.263 Not tainted syzkaller #0
[ 231.963899][ T6241] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 231.974049][ T6241] Call Trace:
[ 231.977352][ T6241]
[ 231.980356][ T6241] dump_stack_lvl+0x168/0x230
[ 231.985059][ T6241] ? show_regs_print_info+0x20/0x20
[ 231.990444][ T6241] ? load_image+0x3b0/0x3b0
[ 231.994976][ T6241] sysfs_create_dir_ns+0x252/0x280
[ 232.000101][ T6241] ? __lock_acquire+0x7c60/0x7c60
[ 232.005158][ T6241] ? sysfs_warn_dup+0xa0/0xa0
[ 232.009864][ T6241] ? do_raw_spin_unlock+0x11d/0x230
[ 232.015082][ T6241] kobject_add_internal+0x662/0xd00
[ 232.020301][ T6241] kobject_init_and_add+0x122/0x190
[ 232.025508][ T6241] ? lockdep_softirqs_off+0x420/0x420
[ 232.030902][ T6241] ? kobject_add+0x210/0x210
[ 232.035508][ T6241] ? __init_swait_queue_head+0xa5/0x150
[ 232.041065][ T6241] gfs2_sys_fs_add+0x234/0x480
[ 232.045835][ T6241] ? gfs2_recover_set+0x240/0x240
[ 232.050864][ T6241] ? snprintf+0xd7/0x120
[ 232.055115][ T6241] ? __free_pages+0x95/0x1a0
[ 232.060056][ T6241] ? vscnprintf+0x80/0x80
[ 232.064405][ T6241] gfs2_fill_super+0x128d/0x1f50
[ 232.069366][ T6241] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.074409][ T6241] ? preempt_count_add+0x8d/0x190
[ 232.076550][ T6242] loop0: detected capacity change from 0 to 32768
[ 232.079488][ T6241] ? sb_set_blocksize+0xa5/0xe0
[ 232.079514][ T6241] get_tree_bdev+0x3f1/0x610
[ 232.079535][ T6241] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.079555][ T6241] gfs2_get_tree+0x4d/0x1e0
[ 232.079575][ T6241] vfs_get_tree+0x88/0x270
[ 232.079594][ T6241] do_new_mount+0x24a/0xa40
[ 232.114105][ T6241] __se_sys_mount+0x2d6/0x3c0
[ 232.118807][ T6241] ? __x64_sys_mount+0xc0/0xc0
[ 232.123677][ T6241] ? lockdep_hardirqs_on+0x94/0x140
[ 232.128887][ T6241] ? __x64_sys_mount+0x1c/0xc0
[ 232.133679][ T6241] do_syscall_64+0x4c/0xa0
[ 232.138190][ T6241] ? clear_bhb_loop+0x30/0x80
[ 232.142876][ T6241] ? clear_bhb_loop+0x30/0x80
[ 232.147566][ T6241] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 232.153470][ T6241] RIP: 0033:0x7f6deb47c76a
[ 232.157899][ T6241] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 232.177621][ T6241] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 232.178420][ T6238] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 232.186060][ T6241] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 232.186075][ T6241] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 232.186095][ T6241] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 232.186108][ T6241] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 232.186119][ T6241] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 232.186143][ T6241]
[ 232.227378][ T6238] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 232.250830][ T6241] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 232.260392][ T6244] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 232.279750][ T6242] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 232.297407][ T6242] CPU: 1 PID: 6242 Comm: syz.0.264 Not tainted syzkaller #0
[ 232.304739][ T6242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 232.314898][ T6242] Call Trace:
[ 232.318190][ T6242]
[ 232.320093][ T6241] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 232.321129][ T6242] dump_stack_lvl+0x168/0x230
[ 232.332472][ T6242] ? show_regs_print_info+0x20/0x20
[ 232.337748][ T6242] ? load_image+0x3b0/0x3b0
[ 232.342333][ T6242] sysfs_create_dir_ns+0x252/0x280
[ 232.347447][ T6242] ? __lock_acquire+0x7c60/0x7c60
[ 232.352480][ T6242] ? sysfs_warn_dup+0xa0/0xa0
[ 232.357150][ T6242] ? do_raw_spin_unlock+0x11d/0x230
[ 232.362341][ T6242] kobject_add_internal+0x662/0xd00
[ 232.367532][ T6242] kobject_init_and_add+0x122/0x190
[ 232.372714][ T6242] ? lockdep_softirqs_off+0x420/0x420
[ 232.378084][ T6242] ? kobject_add+0x210/0x210
[ 232.382670][ T6242] ? __init_swait_queue_head+0xa5/0x150
[ 232.388296][ T6242] gfs2_sys_fs_add+0x234/0x480
[ 232.393051][ T6242] ? gfs2_recover_set+0x240/0x240
[ 232.398058][ T6242] ? snprintf+0xd7/0x120
[ 232.402282][ T6242] ? __free_pages+0x95/0x1a0
[ 232.406875][ T6242] ? vscnprintf+0x80/0x80
[ 232.411219][ T6242] gfs2_fill_super+0x128d/0x1f50
[ 232.416178][ T6242] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.421278][ T6242] ? preempt_count_add+0x8d/0x190
[ 232.426313][ T6242] ? sb_set_blocksize+0xa5/0xe0
[ 232.431240][ T6242] get_tree_bdev+0x3f1/0x610
[ 232.435819][ T6242] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.440830][ T6242] gfs2_get_tree+0x4d/0x1e0
[ 232.445450][ T6242] vfs_get_tree+0x88/0x270
[ 232.449856][ T6242] do_new_mount+0x24a/0xa40
[ 232.454353][ T6242] __se_sys_mount+0x2d6/0x3c0
[ 232.459019][ T6242] ? __x64_sys_mount+0xc0/0xc0
[ 232.463771][ T6242] ? lockdep_hardirqs_on+0x94/0x140
[ 232.468953][ T6242] ? __x64_sys_mount+0x1c/0xc0
[ 232.473715][ T6242] do_syscall_64+0x4c/0xa0
[ 232.478114][ T6242] ? clear_bhb_loop+0x30/0x80
[ 232.482801][ T6242] ? clear_bhb_loop+0x30/0x80
[ 232.487504][ T6242] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 232.493387][ T6242] RIP: 0033:0x7fd32b6a976a
[ 232.497792][ T6242] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 232.517658][ T6242] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 232.526061][ T6242] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 232.534017][ T6242] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 232.541976][ T6242] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 232.550140][ T6242] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 232.558213][ T6242] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 232.566428][ T6242]
[ 232.573512][ T6244] CPU: 0 PID: 6244 Comm: syz.1.265 Not tainted syzkaller #0
[ 232.580818][ T6244] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 232.591063][ T6244] Call Trace:
[ 232.594351][ T6244]
[ 232.597275][ T6244] dump_stack_lvl+0x168/0x230
[ 232.602049][ T6244] ? show_regs_print_info+0x20/0x20
[ 232.607280][ T6244] ? load_image+0x3b0/0x3b0
[ 232.611811][ T6244] sysfs_create_dir_ns+0x252/0x280
[ 232.616935][ T6244] ? __lock_acquire+0x7c60/0x7c60
[ 232.621962][ T6244] ? sysfs_warn_dup+0xa0/0xa0
[ 232.626641][ T6244] ? do_raw_spin_unlock+0x11d/0x230
[ 232.631844][ T6244] kobject_add_internal+0x662/0xd00
[ 232.637067][ T6244] kobject_init_and_add+0x122/0x190
[ 232.642278][ T6244] ? lockdep_softirqs_off+0x420/0x420
[ 232.647687][ T6244] ? kobject_add+0x210/0x210
[ 232.652292][ T6244] ? __init_swait_queue_head+0xa5/0x150
[ 232.657858][ T6244] gfs2_sys_fs_add+0x234/0x480
[ 232.662643][ T6244] ? gfs2_recover_set+0x240/0x240
[ 232.667769][ T6244] ? snprintf+0xd7/0x120
[ 232.672017][ T6244] ? __free_pages+0x95/0x1a0
[ 232.676621][ T6244] ? vscnprintf+0x80/0x80
[ 232.680980][ T6244] gfs2_fill_super+0x128d/0x1f50
[ 232.685938][ T6244] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.690976][ T6244] ? preempt_count_add+0x8d/0x190
[ 232.696015][ T6244] ? sb_set_blocksize+0xa5/0xe0
[ 232.700991][ T6244] get_tree_bdev+0x3f1/0x610
[ 232.705686][ T6244] ? gfs2_reconfigure+0xcd0/0xcd0
[ 232.710731][ T6244] gfs2_get_tree+0x4d/0x1e0
[ 232.715422][ T6244] vfs_get_tree+0x88/0x270
[ 232.719852][ T6244] do_new_mount+0x24a/0xa40
[ 232.724370][ T6244] __se_sys_mount+0x2d6/0x3c0
[ 232.729059][ T6244] ? __x64_sys_mount+0xc0/0xc0
[ 232.733836][ T6244] ? lockdep_hardirqs_on+0x94/0x140
[ 232.739137][ T6244] ? __x64_sys_mount+0x1c/0xc0
[ 232.744092][ T6244] do_syscall_64+0x4c/0xa0
[ 232.748520][ T6244] ? clear_bhb_loop+0x30/0x80
[ 232.753439][ T6244] ? clear_bhb_loop+0x30/0x80
[ 232.758123][ T6244] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 232.764025][ T6244] RIP: 0033:0x7fc1174bd76a
[ 232.768447][ T6244] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 232.788151][ T6244] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 232.797007][ T6244] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 232.804992][ T6244] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 232.813069][ T6244] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 232.821166][ T6244] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 232.829327][ T6244] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 232.837331][ T6244]
[ 232.865340][ T6244] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 232.886211][ T6244] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 232.894527][ T6242] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 232.914105][ T6242] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 232.917129][ T6246] loop2: detected capacity change from 0 to 32768
[ 232.963751][ T6246] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 232.979740][ T6246] CPU: 0 PID: 6246 Comm: syz.2.266 Not tainted syzkaller #0
[ 232.987191][ T6246] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 232.997344][ T6246] Call Trace:
[ 233.000899][ T6246]
[ 233.003834][ T6246] dump_stack_lvl+0x168/0x230
[ 233.008649][ T6246] ? show_regs_print_info+0x20/0x20
[ 233.013861][ T6246] ? load_image+0x3b0/0x3b0
[ 233.018385][ T6246] sysfs_create_dir_ns+0x252/0x280
[ 233.023509][ T6246] ? __lock_acquire+0x7c60/0x7c60
[ 233.028555][ T6246] ? sysfs_warn_dup+0xa0/0xa0
[ 233.033331][ T6246] ? do_raw_spin_unlock+0x11d/0x230
[ 233.038533][ T6246] kobject_add_internal+0x662/0xd00
[ 233.043743][ T6246] kobject_init_and_add+0x122/0x190
[ 233.048960][ T6246] ? lockdep_softirqs_off+0x420/0x420
[ 233.054427][ T6246] ? kobject_add+0x210/0x210
[ 233.059022][ T6246] ? __init_swait_queue_head+0xa5/0x150
[ 233.064578][ T6246] gfs2_sys_fs_add+0x234/0x480
[ 233.069346][ T6246] ? gfs2_recover_set+0x240/0x240
[ 233.074375][ T6246] ? snprintf+0xd7/0x120
[ 233.078623][ T6246] ? __free_pages+0x95/0x1a0
[ 233.083307][ T6246] ? vscnprintf+0x80/0x80
[ 233.087775][ T6246] gfs2_fill_super+0x128d/0x1f50
[ 233.092726][ T6246] ? gfs2_reconfigure+0xcd0/0xcd0
[ 233.097749][ T6246] ? preempt_count_add+0x8d/0x190
[ 233.102786][ T6246] ? sb_set_blocksize+0xa5/0xe0
[ 233.107729][ T6246] get_tree_bdev+0x3f1/0x610
[ 233.112331][ T6246] ? gfs2_reconfigure+0xcd0/0xcd0
[ 233.117387][ T6246] gfs2_get_tree+0x4d/0x1e0
[ 233.121897][ T6246] vfs_get_tree+0x88/0x270
[ 233.126345][ T6246] do_new_mount+0x24a/0xa40
[ 233.130960][ T6246] __se_sys_mount+0x2d6/0x3c0
[ 233.135648][ T6246] ? __x64_sys_mount+0xc0/0xc0
[ 233.140424][ T6246] ? lockdep_hardirqs_on+0x94/0x140
[ 233.146063][ T6246] ? __x64_sys_mount+0x1c/0xc0
[ 233.150920][ T6246] do_syscall_64+0x4c/0xa0
[ 233.155373][ T6246] ? clear_bhb_loop+0x30/0x80
[ 233.160051][ T6246] ? clear_bhb_loop+0x30/0x80
[ 233.164826][ T6246] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 233.170726][ T6246] RIP: 0033:0x7fbbe852676a
[ 233.175182][ T6246] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 233.194872][ T6246] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 233.203643][ T6246] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 233.211617][ T6246] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 233.219592][ T6246] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 233.227740][ T6246] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 233.235722][ T6246] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 233.243721][ T6246]
[ 233.297357][ T6246] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 233.363429][ T6246] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 234.282463][ T6250] loop3: detected capacity change from 0 to 32768
[ 234.318372][ T6250] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 234.342599][ T6250] CPU: 1 PID: 6250 Comm: syz.3.268 Not tainted syzkaller #0
[ 234.349928][ T6250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 234.359998][ T6250] Call Trace:
[ 234.363294][ T6250]
[ 234.366317][ T6250] dump_stack_lvl+0x168/0x230
[ 234.371007][ T6250] ? show_regs_print_info+0x20/0x20
[ 234.376232][ T6250] ? load_image+0x3b0/0x3b0
[ 234.380850][ T6250] sysfs_create_dir_ns+0x252/0x280
[ 234.385989][ T6250] ? __lock_acquire+0x7c60/0x7c60
[ 234.391030][ T6250] ? sysfs_warn_dup+0xa0/0xa0
[ 234.395722][ T6250] ? do_raw_spin_unlock+0x11d/0x230
[ 234.400941][ T6250] kobject_add_internal+0x662/0xd00
[ 234.406159][ T6250] kobject_init_and_add+0x122/0x190
[ 234.411372][ T6250] ? lockdep_softirqs_off+0x420/0x420
[ 234.416753][ T6250] ? kobject_add+0x210/0x210
[ 234.421348][ T6250] ? __init_swait_queue_head+0xa5/0x150
[ 234.426903][ T6250] gfs2_sys_fs_add+0x234/0x480
[ 234.431680][ T6250] ? gfs2_recover_set+0x240/0x240
[ 234.436768][ T6250] ? snprintf+0xd7/0x120
[ 234.441015][ T6250] ? __free_pages+0x95/0x1a0
[ 234.445790][ T6250] ? vscnprintf+0x80/0x80
[ 234.450138][ T6250] gfs2_fill_super+0x128d/0x1f50
[ 234.455094][ T6250] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.460128][ T6250] ? preempt_count_add+0x8d/0x190
[ 234.465171][ T6250] ? sb_set_blocksize+0xa5/0xe0
[ 234.470036][ T6250] get_tree_bdev+0x3f1/0x610
[ 234.474630][ T6250] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.479655][ T6250] gfs2_get_tree+0x4d/0x1e0
[ 234.484168][ T6250] vfs_get_tree+0x88/0x270
[ 234.488593][ T6250] do_new_mount+0x24a/0xa40
[ 234.491833][ T6256] loop1: detected capacity change from 0 to 32768
[ 234.493105][ T6250] __se_sys_mount+0x2d6/0x3c0
[ 234.504251][ T6250] ? __x64_sys_mount+0xc0/0xc0
[ 234.509292][ T6250] ? lockdep_hardirqs_on+0x94/0x140
[ 234.514218][ T6252] loop2: detected capacity change from 0 to 32768
[ 234.514494][ T6250] ? __x64_sys_mount+0x1c/0xc0
[ 234.525834][ T6250] do_syscall_64+0x4c/0xa0
[ 234.530262][ T6250] ? clear_bhb_loop+0x30/0x80
[ 234.534961][ T6250] ? clear_bhb_loop+0x30/0x80
[ 234.539658][ T6250] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 234.543262][ T6256] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 234.545555][ T6250] RIP: 0033:0x7fe7bdbd476a
[ 234.557316][ T6250] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 234.577019][ T6250] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 234.585629][ T6250] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 234.593701][ T6250] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 234.601691][ T6250] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 234.603269][ T6254] loop0: detected capacity change from 0 to 32768
[ 234.609795][ T6250] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 234.609810][ T6250] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 234.609834][ T6250]
[ 234.641365][ T6256] CPU: 1 PID: 6256 Comm: syz.1.271 Not tainted syzkaller #0
[ 234.648689][ T6256] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 234.658753][ T6256] Call Trace:
[ 234.662057][ T6256]
[ 234.665015][ T6256] dump_stack_lvl+0x168/0x230
[ 234.669883][ T6256] ? show_regs_print_info+0x20/0x20
[ 234.670838][ T6254] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 234.675086][ T6256] ? load_image+0x3b0/0x3b0
[ 234.686949][ T6256] sysfs_create_dir_ns+0x252/0x280
[ 234.692079][ T6256] ? __lock_acquire+0x7c60/0x7c60
[ 234.697131][ T6256] ? sysfs_warn_dup+0xa0/0xa0
[ 234.701824][ T6256] ? do_raw_spin_unlock+0x11d/0x230
[ 234.707035][ T6256] kobject_add_internal+0x662/0xd00
[ 234.707536][ T6250] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 234.712236][ T6256] kobject_init_and_add+0x122/0x190
[ 234.730594][ T6256] ? lockdep_softirqs_off+0x420/0x420
[ 234.735984][ T6256] ? kobject_add+0x210/0x210
[ 234.740683][ T6256] ? __init_swait_queue_head+0xa5/0x150
[ 234.746676][ T6256] gfs2_sys_fs_add+0x234/0x480
[ 234.751463][ T6256] ? gfs2_recover_set+0x240/0x240
[ 234.756497][ T6256] ? snprintf+0xd7/0x120
[ 234.760842][ T6256] ? __free_pages+0x95/0x1a0
[ 234.761886][ T6248] loop5: detected capacity change from 0 to 32768
[ 234.765531][ T6256] ? vscnprintf+0x80/0x80
[ 234.776330][ T6256] gfs2_fill_super+0x128d/0x1f50
[ 234.781291][ T6256] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.786324][ T6256] ? preempt_count_add+0x8d/0x190
[ 234.791370][ T6256] ? sb_set_blocksize+0xa5/0xe0
[ 234.796422][ T6256] get_tree_bdev+0x3f1/0x610
[ 234.797432][ T6250] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 234.801276][ T6256] ? gfs2_reconfigure+0xcd0/0xcd0
[ 234.812781][ T6256] gfs2_get_tree+0x4d/0x1e0
[ 234.817299][ T6256] vfs_get_tree+0x88/0x270
[ 234.821748][ T6256] do_new_mount+0x24a/0xa40
[ 234.826262][ T6256] __se_sys_mount+0x2d6/0x3c0
[ 234.831046][ T6256] ? __x64_sys_mount+0xc0/0xc0
[ 234.835823][ T6256] ? lockdep_hardirqs_on+0x94/0x140
[ 234.841040][ T6256] ? __x64_sys_mount+0x1c/0xc0
[ 234.845814][ T6256] do_syscall_64+0x4c/0xa0
[ 234.850240][ T6256] ? clear_bhb_loop+0x30/0x80
[ 234.853356][ T6248] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 234.855005][ T6256] ? clear_bhb_loop+0x30/0x80
[ 234.867132][ T6256] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 234.873052][ T6256] RIP: 0033:0x7fc1174bd76a
[ 234.877490][ T6256] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 234.897102][ T6256] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 234.905526][ T6256] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 234.913681][ T6256] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 234.921691][ T6256] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 234.929848][ T6256] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 234.938016][ T6256] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 234.946011][ T6256]
[ 234.951176][ T6254] CPU: 1 PID: 6254 Comm: syz.0.270 Not tainted syzkaller #0
[ 234.958570][ T6254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 234.960710][ T6252] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 234.968638][ T6254] Call Trace:
[ 234.968647][ T6254]
[ 234.968655][ T6254] dump_stack_lvl+0x168/0x230
[ 234.968680][ T6254] ? show_regs_print_info+0x20/0x20
[ 234.968698][ T6254] ? load_image+0x3b0/0x3b0
[ 234.996571][ T6254] sysfs_create_dir_ns+0x252/0x280
[ 235.001789][ T6254] ? __lock_acquire+0x7c60/0x7c60
[ 235.006825][ T6254] ? sysfs_warn_dup+0xa0/0xa0
[ 235.011501][ T6254] ? do_raw_spin_unlock+0x11d/0x230
[ 235.016892][ T6254] kobject_add_internal+0x662/0xd00
[ 235.022098][ T6254] kobject_init_and_add+0x122/0x190
[ 235.027291][ T6254] ? lockdep_softirqs_off+0x420/0x420
[ 235.032778][ T6254] ? kobject_add+0x210/0x210
[ 235.037448][ T6254] ? __init_swait_queue_head+0xa5/0x150
[ 235.043072][ T6254] gfs2_sys_fs_add+0x234/0x480
[ 235.047830][ T6254] ? gfs2_recover_set+0x240/0x240
[ 235.052852][ T6254] ? snprintf+0xd7/0x120
[ 235.057101][ T6254] ? __free_pages+0x95/0x1a0
[ 235.061702][ T6254] ? vscnprintf+0x80/0x80
[ 235.066030][ T6254] gfs2_fill_super+0x128d/0x1f50
[ 235.070972][ T6254] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.075988][ T6254] ? preempt_count_add+0x8d/0x190
[ 235.081011][ T6254] ? sb_set_blocksize+0xa5/0xe0
[ 235.085857][ T6254] get_tree_bdev+0x3f1/0x610
[ 235.090537][ T6254] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.095570][ T6254] gfs2_get_tree+0x4d/0x1e0
[ 235.100080][ T6254] vfs_get_tree+0x88/0x270
[ 235.104518][ T6254] do_new_mount+0x24a/0xa40
[ 235.107358][ T6256] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.109125][ T6254] __se_sys_mount+0x2d6/0x3c0
[ 235.126881][ T6254] ? __x64_sys_mount+0xc0/0xc0
[ 235.131664][ T6254] ? lockdep_hardirqs_on+0x94/0x140
[ 235.136866][ T6254] ? __x64_sys_mount+0x1c/0xc0
[ 235.141753][ T6254] do_syscall_64+0x4c/0xa0
[ 235.146257][ T6254] ? clear_bhb_loop+0x30/0x80
[ 235.150937][ T6254] ? clear_bhb_loop+0x30/0x80
[ 235.155633][ T6254] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 235.161541][ T6254] RIP: 0033:0x7fd32b6a976a
[ 235.165955][ T6254] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 235.178337][ T6256] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.185554][ T6254] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.185579][ T6254] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 235.185592][ T6254] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 235.216855][ T6254] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 235.225073][ T6254] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 235.233142][ T6254] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 235.241135][ T6254]
2025/12/08 15:47:21 executed programs: 265
[ 235.244238][ T6252] CPU: 0 PID: 6252 Comm: syz.2.269 Not tainted syzkaller #0
[ 235.251620][ T6252] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 235.261696][ T6252] Call Trace:
[ 235.264980][ T6252]
[ 235.267909][ T6252] dump_stack_lvl+0x168/0x230
[ 235.272684][ T6252] ? show_regs_print_info+0x20/0x20
[ 235.277889][ T6252] ? load_image+0x3b0/0x3b0
[ 235.282416][ T6252] sysfs_create_dir_ns+0x252/0x280
[ 235.287549][ T6252] ? __lock_acquire+0x7c60/0x7c60
[ 235.292254][ T6254] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.292666][ T6252] ? sysfs_warn_dup+0xa0/0xa0
[ 235.306630][ T6254] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.310543][ T6252] ? do_raw_spin_unlock+0x11d/0x230
[ 235.310569][ T6252] kobject_add_internal+0x662/0xd00
[ 235.310593][ T6252] kobject_init_and_add+0x122/0x190
[ 235.310609][ T6252] ? lockdep_softirqs_off+0x420/0x420
[ 235.310630][ T6252] ? kobject_add+0x210/0x210
[ 235.310649][ T6252] ? __init_swait_queue_head+0xa5/0x150
[ 235.310672][ T6252] gfs2_sys_fs_add+0x234/0x480
[ 235.353375][ T6252] ? gfs2_recover_set+0x240/0x240
[ 235.358413][ T6252] ? snprintf+0xd7/0x120
[ 235.362653][ T6252] ? __free_pages+0x95/0x1a0
[ 235.367233][ T6252] ? vscnprintf+0x80/0x80
[ 235.371864][ T6252] gfs2_fill_super+0x128d/0x1f50
[ 235.376801][ T6252] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.381814][ T6252] ? preempt_count_add+0x8d/0x190
[ 235.386837][ T6252] ? sb_set_blocksize+0xa5/0xe0
[ 235.391765][ T6252] get_tree_bdev+0x3f1/0x610
[ 235.396369][ T6252] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.401380][ T6252] gfs2_get_tree+0x4d/0x1e0
[ 235.405868][ T6252] vfs_get_tree+0x88/0x270
[ 235.410366][ T6252] do_new_mount+0x24a/0xa40
[ 235.414958][ T6252] __se_sys_mount+0x2d6/0x3c0
[ 235.419622][ T6252] ? __x64_sys_mount+0xc0/0xc0
[ 235.424375][ T6252] ? lockdep_hardirqs_on+0x94/0x140
[ 235.429708][ T6252] ? __x64_sys_mount+0x1c/0xc0
[ 235.434465][ T6252] do_syscall_64+0x4c/0xa0
[ 235.438948][ T6252] ? clear_bhb_loop+0x30/0x80
[ 235.443610][ T6252] ? clear_bhb_loop+0x30/0x80
[ 235.448277][ T6252] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 235.454241][ T6252] RIP: 0033:0x7fbbe852676a
[ 235.458641][ T6252] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 235.478237][ T6252] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.486724][ T6252] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 235.494764][ T6252] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 235.502719][ T6252] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 235.510683][ T6252] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 235.518733][ T6252] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 235.526718][ T6252]
[ 235.531170][ T6248] CPU: 1 PID: 6248 Comm: syz.5.267 Not tainted syzkaller #0
[ 235.538564][ T6248] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 235.548625][ T6248] Call Trace:
[ 235.551930][ T6248]
[ 235.554868][ T6248] dump_stack_lvl+0x168/0x230
[ 235.559569][ T6248] ? show_regs_print_info+0x20/0x20
[ 235.564793][ T6248] ? load_image+0x3b0/0x3b0
[ 235.569325][ T6248] sysfs_create_dir_ns+0x252/0x280
[ 235.574457][ T6248] ? __lock_acquire+0x7c60/0x7c60
[ 235.579581][ T6248] ? sysfs_warn_dup+0xa0/0xa0
[ 235.584411][ T6248] ? do_raw_spin_unlock+0x11d/0x230
[ 235.589632][ T6248] kobject_add_internal+0x662/0xd00
[ 235.594941][ T6248] kobject_init_and_add+0x122/0x190
[ 235.600357][ T6248] ? lockdep_softirqs_off+0x420/0x420
[ 235.605849][ T6248] ? kobject_add+0x210/0x210
[ 235.610558][ T6248] ? __init_swait_queue_head+0xa5/0x150
[ 235.616297][ T6248] gfs2_sys_fs_add+0x234/0x480
[ 235.621091][ T6248] ? gfs2_recover_set+0x240/0x240
[ 235.626129][ T6248] ? snprintf+0xd7/0x120
[ 235.630393][ T6248] ? __free_pages+0x95/0x1a0
[ 235.635002][ T6248] ? vscnprintf+0x80/0x80
[ 235.639366][ T6248] gfs2_fill_super+0x128d/0x1f50
[ 235.644415][ T6248] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.649460][ T6248] ? preempt_count_add+0x8d/0x190
[ 235.654500][ T6248] ? sb_set_blocksize+0xa5/0xe0
[ 235.659364][ T6248] get_tree_bdev+0x3f1/0x610
[ 235.663963][ T6248] ? gfs2_reconfigure+0xcd0/0xcd0
[ 235.669000][ T6248] gfs2_get_tree+0x4d/0x1e0
[ 235.673517][ T6248] vfs_get_tree+0x88/0x270
[ 235.677955][ T6248] do_new_mount+0x24a/0xa40
[ 235.682473][ T6248] __se_sys_mount+0x2d6/0x3c0
[ 235.687250][ T6248] ? __x64_sys_mount+0xc0/0xc0
[ 235.692033][ T6248] ? lockdep_hardirqs_on+0x94/0x140
[ 235.697239][ T6248] ? __x64_sys_mount+0x1c/0xc0
[ 235.702013][ T6248] do_syscall_64+0x4c/0xa0
[ 235.706488][ T6248] ? clear_bhb_loop+0x30/0x80
[ 235.711185][ T6248] ? clear_bhb_loop+0x30/0x80
[ 235.715885][ T6248] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 235.721794][ T6248] RIP: 0033:0x7f6deb47c76a
[ 235.726231][ T6248] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 235.746050][ T6248] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 235.754613][ T6248] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 235.762692][ T6248] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 235.770764][ T6248] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 235.778749][ T6248] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 235.786820][ T6248] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 235.794943][ T6248]
[ 235.800550][ T6252] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.818354][ T6248] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 235.832882][ T6252] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 235.841031][ T6248] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 236.493864][ T6258] loop3: detected capacity change from 0 to 32768
[ 236.532194][ T6258] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 236.557358][ T6258] CPU: 1 PID: 6258 Comm: syz.3.272 Not tainted syzkaller #0
[ 236.564676][ T6258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 236.574733][ T6258] Call Trace:
[ 236.578049][ T6258]
[ 236.581061][ T6258] dump_stack_lvl+0x168/0x230
[ 236.585758][ T6258] ? show_regs_print_info+0x20/0x20
[ 236.590983][ T6258] ? load_image+0x3b0/0x3b0
[ 236.595512][ T6258] sysfs_create_dir_ns+0x252/0x280
[ 236.600644][ T6258] ? __lock_acquire+0x7c60/0x7c60
[ 236.605770][ T6258] ? sysfs_warn_dup+0xa0/0xa0
[ 236.610461][ T6258] ? do_raw_spin_unlock+0x11d/0x230
[ 236.615765][ T6258] kobject_add_internal+0x662/0xd00
[ 236.620987][ T6258] kobject_init_and_add+0x122/0x190
[ 236.626201][ T6258] ? lockdep_softirqs_off+0x420/0x420
[ 236.631591][ T6258] ? kobject_add+0x210/0x210
[ 236.636288][ T6258] ? __init_swait_queue_head+0xa5/0x150
[ 236.641851][ T6258] gfs2_sys_fs_add+0x234/0x480
[ 236.646708][ T6258] ? gfs2_recover_set+0x240/0x240
[ 236.651734][ T6258] ? snprintf+0xd7/0x120
[ 236.656014][ T6258] ? __free_pages+0x95/0x1a0
[ 236.660702][ T6258] ? vscnprintf+0x80/0x80
[ 236.665056][ T6258] gfs2_fill_super+0x128d/0x1f50
[ 236.670010][ T6258] ? gfs2_reconfigure+0xcd0/0xcd0
[ 236.675052][ T6258] ? preempt_count_add+0x8d/0x190
[ 236.680184][ T6258] ? sb_set_blocksize+0xa5/0xe0
[ 236.685131][ T6258] get_tree_bdev+0x3f1/0x610
[ 236.689744][ T6258] ? gfs2_reconfigure+0xcd0/0xcd0
[ 236.694959][ T6258] gfs2_get_tree+0x4d/0x1e0
[ 236.699471][ T6258] vfs_get_tree+0x88/0x270
[ 236.703897][ T6258] do_new_mount+0x24a/0xa40
[ 236.708416][ T6258] __se_sys_mount+0x2d6/0x3c0
[ 236.713110][ T6258] ? __x64_sys_mount+0xc0/0xc0
[ 236.717881][ T6258] ? lockdep_hardirqs_on+0x94/0x140
[ 236.723083][ T6258] ? __x64_sys_mount+0x1c/0xc0
[ 236.727853][ T6258] do_syscall_64+0x4c/0xa0
[ 236.732292][ T6258] ? clear_bhb_loop+0x30/0x80
[ 236.737149][ T6258] ? clear_bhb_loop+0x30/0x80
[ 236.741839][ T6258] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 236.747828][ T6258] RIP: 0033:0x7fe7bdbd476a
[ 236.752257][ T6258] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 236.772218][ T6258] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 236.780737][ T6258] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 236.788728][ T6258] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 236.796712][ T6258] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 236.804697][ T6258] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 236.812688][ T6258] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 236.820776][ T6258]
[ 237.116951][ T6266] loop2: detected capacity change from 0 to 32768
[ 237.169396][ T6266] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 237.205929][ T6266] CPU: 0 PID: 6266 Comm: syz.2.275 Not tainted syzkaller #0
[ 237.213257][ T6266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 237.223334][ T6266] Call Trace:
[ 237.226153][ T6261] loop1: detected capacity change from 0 to 32768
[ 237.226614][ T6266]
[ 237.236050][ T6266] dump_stack_lvl+0x168/0x230
[ 237.240739][ T6266] ? show_regs_print_info+0x20/0x20
[ 237.244006][ T6262] loop0: detected capacity change from 0 to 32768
[ 237.245952][ T6266] ? load_image+0x3b0/0x3b0
[ 237.245985][ T6266] sysfs_create_dir_ns+0x252/0x280
[ 237.246007][ T6266] ? __lock_acquire+0x7c60/0x7c60
[ 237.246027][ T6266] ? sysfs_warn_dup+0xa0/0xa0
[ 237.246050][ T6266] ? do_raw_spin_unlock+0x11d/0x230
[ 237.246071][ T6266] kobject_add_internal+0x662/0xd00
[ 237.246098][ T6266] kobject_init_and_add+0x122/0x190
[ 237.246115][ T6266] ? lockdep_softirqs_off+0x420/0x420
[ 237.246138][ T6266] ? kobject_add+0x210/0x210
[ 237.246159][ T6266] ? __init_swait_queue_head+0xa5/0x150
[ 237.246181][ T6266] gfs2_sys_fs_add+0x234/0x480
[ 237.246199][ T6266] ? gfs2_recover_set+0x240/0x240
[ 237.246215][ T6266] ? snprintf+0xd7/0x120
[ 237.246231][ T6266] ? __free_pages+0x95/0x1a0
[ 237.246252][ T6266] ? vscnprintf+0x80/0x80
[ 237.246283][ T6266] gfs2_fill_super+0x128d/0x1f50
[ 237.246315][ T6266] ? gfs2_reconfigure+0xcd0/0xcd0
[ 237.246337][ T6266] ? preempt_count_add+0x8d/0x190
[ 237.246367][ T6266] ? sb_set_blocksize+0xa5/0xe0
[ 237.246390][ T6266] get_tree_bdev+0x3f1/0x610
[ 237.246411][ T6266] ? gfs2_reconfigure+0xcd0/0xcd0
[ 237.246431][ T6266] gfs2_get_tree+0x4d/0x1e0
[ 237.246453][ T6266] vfs_get_tree+0x88/0x270
[ 237.246473][ T6266] do_new_mount+0x24a/0xa40
[ 237.246498][ T6266] __se_sys_mount+0x2d6/0x3c0
[ 237.246522][ T6266] ? __x64_sys_mount+0xc0/0xc0
[ 237.246543][ T6266] ? lockdep_hardirqs_on+0x94/0x140
[ 237.246562][ T6266] ? __x64_sys_mount+0x1c/0xc0
[ 237.246582][ T6266] do_syscall_64+0x4c/0xa0
[ 237.246599][ T6266] ? clear_bhb_loop+0x30/0x80
[ 237.246617][ T6266] ? clear_bhb_loop+0x30/0x80
[ 237.246635][ T6266] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 237.293546][ T6261] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 237.293764][ T6266] RIP: 0033:0x7fbbe852676a
[ 237.307467][ T6262] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 237.308721][ T6266] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 237.447766][ T6266] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 237.456193][ T6266] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 237.464173][ T6266] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 237.472242][ T6266] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 237.480217][ T6266] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 237.488196][ T6266] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 237.496186][ T6266]
[ 237.499212][ T6262] CPU: 1 PID: 6262 Comm: syz.0.273 Not tainted syzkaller #0
[ 237.506595][ T6262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 237.516744][ T6262] Call Trace:
[ 237.520035][ T6262]
[ 237.522982][ T6262] dump_stack_lvl+0x168/0x230
[ 237.527668][ T6262] ? show_regs_print_info+0x20/0x20
[ 237.532877][ T6262] ? load_image+0x3b0/0x3b0
[ 237.537415][ T6262] sysfs_create_dir_ns+0x252/0x280
[ 237.542551][ T6262] ? __lock_acquire+0x7c60/0x7c60
[ 237.547590][ T6262] ? sysfs_warn_dup+0xa0/0xa0
[ 237.552284][ T6262] ? do_raw_spin_unlock+0x11d/0x230
[ 237.557754][ T6262] kobject_add_internal+0x662/0xd00
[ 237.562993][ T6262] kobject_init_and_add+0x122/0x190
[ 237.568201][ T6262] ? lockdep_softirqs_off+0x420/0x420
[ 237.573772][ T6262] ? kobject_add+0x210/0x210
[ 237.578371][ T6262] ? __init_swait_queue_head+0xa5/0x150
[ 237.581905][ T6265] loop5: detected capacity change from 0 to 32768
[ 237.583919][ T6262] gfs2_sys_fs_add+0x234/0x480
[ 237.583943][ T6262] ? gfs2_recover_set+0x240/0x240
[ 237.583960][ T6262] ? snprintf+0xd7/0x120
[ 237.604340][ T6262] ? __free_pages+0x95/0x1a0
[ 237.609191][ T6262] ? vscnprintf+0x80/0x80
[ 237.611573][ T6265] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 237.613546][ T6262] gfs2_fill_super+0x128d/0x1f50
[ 237.625943][ T6262] ? gfs2_reconfigure+0xcd0/0xcd0
[ 237.631089][ T6262] ? preempt_count_add+0x8d/0x190
[ 237.636160][ T6262] ? sb_set_blocksize+0xa5/0xe0
[ 237.641115][ T6262] get_tree_bdev+0x3f1/0x610
[ 237.645779][ T6262] ? gfs2_reconfigure+0xcd0/0xcd0
[ 237.650814][ T6262] gfs2_get_tree+0x4d/0x1e0
[ 237.655333][ T6262] vfs_get_tree+0x88/0x270
[ 237.659755][ T6262] do_new_mount+0x24a/0xa40
[ 237.664281][ T6262] __se_sys_mount+0x2d6/0x3c0
[ 237.668972][ T6262] ? __x64_sys_mount+0xc0/0xc0
[ 237.673740][ T6262] ? lockdep_hardirqs_on+0x94/0x140
[ 237.679029][ T6262] ? __x64_sys_mount+0x1c/0xc0
[ 237.683836][ T6262] do_syscall_64+0x4c/0xa0
[ 237.688269][ T6262] ? clear_bhb_loop+0x30/0x80
[ 237.692953][ T6262] ? clear_bhb_loop+0x30/0x80
[ 237.697624][ T6262] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 237.703528][ T6262] RIP: 0033:0x7fd32b6a976a
[ 237.707946][ T6262] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 237.727640][ T6262] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 237.736054][ T6262] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 237.744105][ T6262] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 237.752333][ T6262] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 237.760398][ T6262] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 237.768372][ T6262] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 237.776349][ T6262]
[ 237.779459][ T6265] CPU: 0 PID: 6265 Comm: syz.5.276 Not tainted syzkaller #0
[ 237.781451][ T6266] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 237.786955][ T6265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 237.786969][ T6265] Call Trace:
[ 237.807403][ T6258] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 237.810232][ T6265]
[ 237.810242][ T6265] dump_stack_lvl+0x168/0x230
[ 237.816530][ T6266] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 237.826669][ T6265] ? show_regs_print_info+0x20/0x20
[ 237.826695][ T6265] ? load_image+0x3b0/0x3b0
[ 237.826721][ T6265] sysfs_create_dir_ns+0x252/0x280
[ 237.826742][ T6265] ? __lock_acquire+0x7c60/0x7c60
[ 237.826761][ T6265] ? sysfs_warn_dup+0xa0/0xa0
[ 237.829798][ T6258] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 237.834340][ T6265] ? do_raw_spin_unlock+0x11d/0x230
[ 237.844243][ T6262] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 237.846590][ T6265] kobject_add_internal+0x662/0xd00
[ 237.853950][ T6262] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 237.856168][ T6265] kobject_init_and_add+0x122/0x190
[ 237.856192][ T6265] ? lockdep_softirqs_off+0x420/0x420
[ 237.912922][ T6265] ? kobject_add+0x210/0x210
[ 237.917577][ T6265] ? __init_swait_queue_head+0xa5/0x150
[ 237.923217][ T6265] gfs2_sys_fs_add+0x234/0x480
[ 237.927978][ T6265] ? gfs2_recover_set+0x240/0x240
[ 237.933156][ T6265] ? snprintf+0xd7/0x120
[ 237.937434][ T6265] ? __free_pages+0x95/0x1a0
[ 237.942023][ T6265] ? vscnprintf+0x80/0x80
[ 237.946529][ T6265] gfs2_fill_super+0x128d/0x1f50
[ 237.951481][ T6265] ? gfs2_reconfigure+0xcd0/0xcd0
[ 237.956509][ T6265] ? preempt_count_add+0x8d/0x190
[ 237.961536][ T6265] ? sb_set_blocksize+0xa5/0xe0
[ 237.966386][ T6265] get_tree_bdev+0x3f1/0x610
[ 237.970981][ T6265] ? gfs2_reconfigure+0xcd0/0xcd0
[ 237.976019][ T6265] gfs2_get_tree+0x4d/0x1e0
[ 237.980516][ T6265] vfs_get_tree+0x88/0x270
[ 237.984926][ T6265] do_new_mount+0x24a/0xa40
[ 237.989569][ T6265] __se_sys_mount+0x2d6/0x3c0
[ 237.994250][ T6265] ? __x64_sys_mount+0xc0/0xc0
[ 237.999012][ T6265] ? lockdep_hardirqs_on+0x94/0x140
[ 238.004289][ T6265] ? __x64_sys_mount+0x1c/0xc0
[ 238.009098][ T6265] do_syscall_64+0x4c/0xa0
[ 238.013505][ T6265] ? clear_bhb_loop+0x30/0x80
[ 238.018355][ T6265] ? clear_bhb_loop+0x30/0x80
[ 238.023022][ T6265] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.028931][ T6265] RIP: 0033:0x7f6deb47c76a
[ 238.033423][ T6265] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 238.053113][ T6265] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.061518][ T6265] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 238.069483][ T6265] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 238.077535][ T6265] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 238.085583][ T6265] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 238.093908][ T6265] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 238.101903][ T6265]
[ 238.104921][ T6261] CPU: 1 PID: 6261 Comm: syz.1.274 Not tainted syzkaller #0
[ 238.109338][ T6265] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.112207][ T6261] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 238.112219][ T6261] Call Trace:
[ 238.125490][ T6265] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 238.135545][ T6261]
[ 238.135556][ T6261] dump_stack_lvl+0x168/0x230
[ 238.135582][ T6261] ? show_regs_print_info+0x20/0x20
[ 238.158086][ T6261] ? load_image+0x3b0/0x3b0
[ 238.162607][ T6261] sysfs_create_dir_ns+0x252/0x280
[ 238.167709][ T6261] ? __lock_acquire+0x7c60/0x7c60
[ 238.172735][ T6261] ? sysfs_warn_dup+0xa0/0xa0
[ 238.177398][ T6261] ? do_raw_spin_unlock+0x11d/0x230
[ 238.182589][ T6261] kobject_add_internal+0x662/0xd00
[ 238.187767][ T6261] kobject_init_and_add+0x122/0x190
[ 238.192942][ T6261] ? lockdep_softirqs_off+0x420/0x420
[ 238.198302][ T6261] ? kobject_add+0x210/0x210
[ 238.202894][ T6261] ? __init_swait_queue_head+0xa5/0x150
[ 238.208446][ T6261] gfs2_sys_fs_add+0x234/0x480
[ 238.213208][ T6261] ? gfs2_recover_set+0x240/0x240
[ 238.218213][ T6261] ? snprintf+0xd7/0x120
[ 238.222459][ T6261] ? __free_pages+0x95/0x1a0
[ 238.227377][ T6261] ? vscnprintf+0x80/0x80
[ 238.231712][ T6261] gfs2_fill_super+0x128d/0x1f50
[ 238.236723][ T6261] ? gfs2_reconfigure+0xcd0/0xcd0
[ 238.241754][ T6261] ? preempt_count_add+0x8d/0x190
[ 238.246777][ T6261] ? sb_set_blocksize+0xa5/0xe0
[ 238.251618][ T6261] get_tree_bdev+0x3f1/0x610
[ 238.256213][ T6261] ? gfs2_reconfigure+0xcd0/0xcd0
[ 238.261220][ T6261] gfs2_get_tree+0x4d/0x1e0
[ 238.265706][ T6261] vfs_get_tree+0x88/0x270
[ 238.270107][ T6261] do_new_mount+0x24a/0xa40
[ 238.274607][ T6261] __se_sys_mount+0x2d6/0x3c0
[ 238.279275][ T6261] ? __x64_sys_mount+0xc0/0xc0
[ 238.284108][ T6261] ? lockdep_hardirqs_on+0x94/0x140
[ 238.289283][ T6261] ? __x64_sys_mount+0x1c/0xc0
[ 238.294025][ T6261] do_syscall_64+0x4c/0xa0
[ 238.298538][ T6261] ? clear_bhb_loop+0x30/0x80
[ 238.303212][ T6261] ? clear_bhb_loop+0x30/0x80
[ 238.307880][ T6261] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 238.314325][ T6261] RIP: 0033:0x7fc1174bd76a
[ 238.318973][ T6261] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 238.338860][ T6261] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 238.347506][ T6261] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 238.355572][ T6261] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 238.363559][ T6261] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 238.371669][ T6261] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 238.379631][ T6261] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 238.387601][ T6261]
[ 238.394555][ T6261] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 238.411895][ T6261] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 239.697808][ T6269] loop3: detected capacity change from 0 to 32768
[ 239.708117][ T6273] loop5: detected capacity change from 0 to 32768
[ 239.746290][ T6273] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 239.748549][ T6269] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 239.754859][ T6274] loop1: detected capacity change from 0 to 32768
[ 239.778288][ T6273] CPU: 1 PID: 6273 Comm: syz.5.280 Not tainted syzkaller #0
[ 239.785603][ T6273] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 239.795761][ T6273] Call Trace:
[ 239.799134][ T6273]
[ 239.802168][ T6273] dump_stack_lvl+0x168/0x230
[ 239.806857][ T6273] ? show_regs_print_info+0x20/0x20
[ 239.808608][ T6276] loop0: detected capacity change from 0 to 32768
[ 239.812057][ T6273] ? load_image+0x3b0/0x3b0
[ 239.812090][ T6273] sysfs_create_dir_ns+0x252/0x280
[ 239.828190][ T6273] ? __lock_acquire+0x7c60/0x7c60
[ 239.833216][ T6273] ? sysfs_warn_dup+0xa0/0xa0
[ 239.837892][ T6273] ? do_raw_spin_unlock+0x11d/0x230
[ 239.843276][ T6273] kobject_add_internal+0x662/0xd00
[ 239.848568][ T6273] kobject_init_and_add+0x122/0x190
[ 239.853771][ T6273] ? lockdep_softirqs_off+0x420/0x420
[ 239.859151][ T6273] ? kobject_add+0x210/0x210
[ 239.863847][ T6273] ? __init_swait_queue_head+0xa5/0x150
[ 239.869408][ T6273] gfs2_sys_fs_add+0x234/0x480
[ 239.870186][ T6276] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 239.874274][ T6273] ? gfs2_recover_set+0x240/0x240
[ 239.886798][ T6273] ? snprintf+0xd7/0x120
[ 239.891041][ T6273] ? __free_pages+0x95/0x1a0
[ 239.895771][ T6273] ? vscnprintf+0x80/0x80
[ 239.900217][ T6273] gfs2_fill_super+0x128d/0x1f50
[ 239.905243][ T6273] ? gfs2_reconfigure+0xcd0/0xcd0
[ 239.910280][ T6273] ? preempt_count_add+0x8d/0x190
[ 239.915410][ T6273] ? sb_set_blocksize+0xa5/0xe0
[ 239.920353][ T6273] get_tree_bdev+0x3f1/0x610
[ 239.924944][ T6273] ? gfs2_reconfigure+0xcd0/0xcd0
[ 239.929979][ T6273] gfs2_get_tree+0x4d/0x1e0
[ 239.934499][ T6273] vfs_get_tree+0x88/0x270
[ 239.938925][ T6273] do_new_mount+0x24a/0xa40
[ 239.943643][ T6273] __se_sys_mount+0x2d6/0x3c0
[ 239.948403][ T6273] ? __x64_sys_mount+0xc0/0xc0
[ 239.953162][ T6273] ? lockdep_hardirqs_on+0x94/0x140
[ 239.958352][ T6273] ? __x64_sys_mount+0x1c/0xc0
[ 239.963124][ T6273] do_syscall_64+0x4c/0xa0
[ 239.967531][ T6273] ? clear_bhb_loop+0x30/0x80
[ 239.972211][ T6273] ? clear_bhb_loop+0x30/0x80
[ 239.976898][ T6273] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 239.982786][ T6273] RIP: 0033:0x7f6deb47c76a
[ 239.987193][ T6273] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 240.006965][ T6273] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.015384][ T6273] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 240.023352][ T6273] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 240.031316][ T6273] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 240.039290][ T6273] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 240.047452][ T6273] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 240.055429][ T6273]
[ 240.058439][ T6269] CPU: 0 PID: 6269 Comm: syz.3.277 Not tainted syzkaller #0
[ 240.065729][ T6269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 240.075799][ T6269] Call Trace:
[ 240.079080][ T6269]
[ 240.082009][ T6269] dump_stack_lvl+0x168/0x230
[ 240.086699][ T6269] ? show_regs_print_info+0x20/0x20
[ 240.091902][ T6269] ? load_image+0x3b0/0x3b0
[ 240.092235][ T6270] loop2: detected capacity change from 0 to 32768
[ 240.096410][ T6269] sysfs_create_dir_ns+0x252/0x280
[ 240.107983][ T6269] ? __lock_acquire+0x7c60/0x7c60
[ 240.113196][ T6269] ? sysfs_warn_dup+0xa0/0xa0
[ 240.116043][ T6273] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.117879][ T6269] ? do_raw_spin_unlock+0x11d/0x230
[ 240.117905][ T6269] kobject_add_internal+0x662/0xd00
[ 240.117930][ T6269] kobject_init_and_add+0x122/0x190
[ 240.117946][ T6269] ? lockdep_softirqs_off+0x420/0x420
[ 240.117973][ T6269] ? kobject_add+0x210/0x210
[ 240.132405][ T6273] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 240.136242][ T6269] ? __init_swait_queue_head+0xa5/0x150
[ 240.168721][ T6269] gfs2_sys_fs_add+0x234/0x480
[ 240.173488][ T6269] ? gfs2_recover_set+0x240/0x240
[ 240.178507][ T6269] ? snprintf+0xd7/0x120
[ 240.182771][ T6269] ? __free_pages+0x95/0x1a0
[ 240.187354][ T6269] ? vscnprintf+0x80/0x80
[ 240.191683][ T6269] gfs2_fill_super+0x128d/0x1f50
[ 240.196623][ T6269] ? gfs2_reconfigure+0xcd0/0xcd0
[ 240.201639][ T6269] ? preempt_count_add+0x8d/0x190
[ 240.206926][ T6269] ? sb_set_blocksize+0xa5/0xe0
[ 240.211774][ T6269] get_tree_bdev+0x3f1/0x610
[ 240.216361][ T6269] ? gfs2_reconfigure+0xcd0/0xcd0
[ 240.221388][ T6269] gfs2_get_tree+0x4d/0x1e0
[ 240.225887][ T6269] vfs_get_tree+0x88/0x270
[ 240.230300][ T6269] do_new_mount+0x24a/0xa40
[ 240.234897][ T6269] __se_sys_mount+0x2d6/0x3c0
[ 240.239569][ T6269] ? __x64_sys_mount+0xc0/0xc0
[ 240.244326][ T6269] ? lockdep_hardirqs_on+0x94/0x140
[ 240.249516][ T6269] ? __x64_sys_mount+0x1c/0xc0
[ 240.254290][ T6269] do_syscall_64+0x4c/0xa0
[ 240.258716][ T6269] ? clear_bhb_loop+0x30/0x80
[ 240.263391][ T6269] ? clear_bhb_loop+0x30/0x80
[ 240.268057][ T6269] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 240.273939][ T6269] RIP: 0033:0x7fe7bdbd476a
[ 240.278346][ T6269] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 240.298088][ T6269] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.306492][ T6269] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 240.314466][ T6269] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 240.322457][ T6269] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 240.330518][ T6269] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 240.338481][ T6269] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 240.346455][ T6269]
[ 240.349564][ T6276] CPU: 1 PID: 6276 Comm: syz.0.281 Not tainted syzkaller #0
[ 240.356944][ T6276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 240.364456][ T6269] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.367003][ T6276] Call Trace:
[ 240.367012][ T6276]
[ 240.380255][ T6269] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 240.383356][ T6276] dump_stack_lvl+0x168/0x230
[ 240.397569][ T6276] ? show_regs_print_info+0x20/0x20
[ 240.402792][ T6276] ? load_image+0x3b0/0x3b0
[ 240.407320][ T6276] sysfs_create_dir_ns+0x252/0x280
[ 240.412446][ T6276] ? __lock_acquire+0x7c60/0x7c60
[ 240.417565][ T6276] ? sysfs_warn_dup+0xa0/0xa0
[ 240.422238][ T6276] ? do_raw_spin_unlock+0x11d/0x230
[ 240.427425][ T6276] kobject_add_internal+0x662/0xd00
[ 240.432641][ T6276] kobject_init_and_add+0x122/0x190
[ 240.437865][ T6276] ? lockdep_softirqs_off+0x420/0x420
[ 240.443226][ T6276] ? kobject_add+0x210/0x210
[ 240.447980][ T6276] ? __init_swait_queue_head+0xa5/0x150
[ 240.453599][ T6276] gfs2_sys_fs_add+0x234/0x480
[ 240.458358][ T6276] ? gfs2_recover_set+0x240/0x240
[ 240.463477][ T6276] ? snprintf+0xd7/0x120
[ 240.467726][ T6276] ? __free_pages+0x95/0x1a0
[ 240.472310][ T6276] ? vscnprintf+0x80/0x80
[ 240.476629][ T6276] gfs2_fill_super+0x128d/0x1f50
[ 240.481572][ T6276] ? gfs2_reconfigure+0xcd0/0xcd0
[ 240.486576][ T6276] ? preempt_count_add+0x8d/0x190
[ 240.491602][ T6276] ? sb_set_blocksize+0xa5/0xe0
[ 240.496465][ T6276] get_tree_bdev+0x3f1/0x610
[ 240.501048][ T6276] ? gfs2_reconfigure+0xcd0/0xcd0
[ 240.506144][ T6276] gfs2_get_tree+0x4d/0x1e0
[ 240.510641][ T6276] vfs_get_tree+0x88/0x270
[ 240.515063][ T6276] do_new_mount+0x24a/0xa40
[ 240.519560][ T6276] __se_sys_mount+0x2d6/0x3c0
[ 240.524323][ T6276] ? __x64_sys_mount+0xc0/0xc0
[ 240.529137][ T6276] ? lockdep_hardirqs_on+0x94/0x140
[ 240.534462][ T6276] ? __x64_sys_mount+0x1c/0xc0
[ 240.539305][ T6276] do_syscall_64+0x4c/0xa0
[ 240.543717][ T6276] ? clear_bhb_loop+0x30/0x80
[ 240.548389][ T6276] ? clear_bhb_loop+0x30/0x80
[ 240.553057][ T6276] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 240.558954][ T6276] RIP: 0033:0x7fd32b6a976a
[ 240.563376][ T6276] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 240.583060][ T6276] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.591467][ T6276] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 240.599435][ T6276] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 240.607489][ T6276] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 240.615468][ T6276] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 240.623617][ T6276] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 240.631589][ T6276]
[ 240.642321][ T6270] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.650088][ T6276] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 240.664929][ T6274] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 240.672678][ T6270] CPU: 0 PID: 6270 Comm: syz.2.278 Not tainted syzkaller #0
[ 240.679980][ T6270] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 240.690215][ T6270] Call Trace:
[ 240.693498][ T6270]
[ 240.696441][ T6270] dump_stack_lvl+0x168/0x230
[ 240.701221][ T6270] ? show_regs_print_info+0x20/0x20
[ 240.706613][ T6270] ? load_image+0x3b0/0x3b0
[ 240.711131][ T6270] sysfs_create_dir_ns+0x252/0x280
[ 240.716254][ T6270] ? __lock_acquire+0x7c60/0x7c60
[ 240.721276][ T6270] ? sysfs_warn_dup+0xa0/0xa0
[ 240.725975][ T6270] ? do_raw_spin_unlock+0x11d/0x230
[ 240.731281][ T6270] kobject_add_internal+0x662/0xd00
[ 240.736667][ T6270] kobject_init_and_add+0x122/0x190
[ 240.741876][ T6270] ? lockdep_softirqs_off+0x420/0x420
[ 240.747277][ T6270] ? kobject_add+0x210/0x210
[ 240.751878][ T6270] ? __init_swait_queue_head+0xa5/0x150
[ 240.757429][ T6270] gfs2_sys_fs_add+0x234/0x480
[ 240.762193][ T6270] ? gfs2_recover_set+0x240/0x240
[ 240.767304][ T6270] ? snprintf+0xd7/0x120
[ 240.771643][ T6270] ? __free_pages+0x95/0x1a0
[ 240.776250][ T6270] ? vscnprintf+0x80/0x80
[ 240.780603][ T6270] gfs2_fill_super+0x128d/0x1f50
[ 240.785551][ T6270] ? gfs2_reconfigure+0xcd0/0xcd0
[ 240.790675][ T6270] ? preempt_count_add+0x8d/0x190
[ 240.795801][ T6270] ? sb_set_blocksize+0xa5/0xe0
[ 240.800660][ T6270] get_tree_bdev+0x3f1/0x610
[ 240.805276][ T6270] ? gfs2_reconfigure+0xcd0/0xcd0
[ 240.810311][ T6270] gfs2_get_tree+0x4d/0x1e0
[ 240.814815][ T6270] vfs_get_tree+0x88/0x270
[ 240.819236][ T6270] do_new_mount+0x24a/0xa40
[ 240.823752][ T6270] __se_sys_mount+0x2d6/0x3c0
[ 240.828454][ T6270] ? __x64_sys_mount+0xc0/0xc0
[ 240.833494][ T6270] ? lockdep_hardirqs_on+0x94/0x140
[ 240.838783][ T6270] ? __x64_sys_mount+0x1c/0xc0
[ 240.843555][ T6270] do_syscall_64+0x4c/0xa0
[ 240.847977][ T6270] ? clear_bhb_loop+0x30/0x80
[ 240.852715][ T6270] ? clear_bhb_loop+0x30/0x80
[ 240.857394][ T6270] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 240.863474][ T6270] RIP: 0033:0x7fbbe852676a
[ 240.867898][ T6270] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 240.887511][ T6270] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 240.895928][ T6270] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 240.903897][ T6270] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 240.911865][ T6270] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 240.920012][ T6270] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 240.927995][ T6270] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 240.936067][ T6270]
[ 240.977514][ T6276] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 240.988384][ T6270] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 241.002828][ T6270] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 241.003404][ T6274] CPU: 1 PID: 6274 Comm: syz.1.279 Not tainted syzkaller #0
[ 241.016621][ T6274] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 241.026696][ T6274] Call Trace:
[ 241.029989][ T6274]
[ 241.032927][ T6274] dump_stack_lvl+0x168/0x230
[ 241.037616][ T6274] ? show_regs_print_info+0x20/0x20
[ 241.043121][ T6274] ? load_image+0x3b0/0x3b0
[ 241.047643][ T6274] sysfs_create_dir_ns+0x252/0x280
[ 241.052942][ T6274] ? __lock_acquire+0x7c60/0x7c60
[ 241.057983][ T6274] ? sysfs_warn_dup+0xa0/0xa0
[ 241.062675][ T6274] ? do_raw_spin_unlock+0x11d/0x230
[ 241.068321][ T6274] kobject_add_internal+0x662/0xd00
2025/12/08 15:47:27 executed programs: 275
[ 241.073535][ T6274] kobject_init_and_add+0x122/0x190
[ 241.078754][ T6274] ? lockdep_softirqs_off+0x420/0x420
[ 241.084145][ T6274] ? kobject_add+0x210/0x210
[ 241.088754][ T6274] ? __init_swait_queue_head+0xa5/0x150
[ 241.094314][ T6274] gfs2_sys_fs_add+0x234/0x480
[ 241.099096][ T6274] ? gfs2_recover_set+0x240/0x240
[ 241.104139][ T6274] ? snprintf+0xd7/0x120
[ 241.108395][ T6274] ? __free_pages+0x95/0x1a0
[ 241.113003][ T6274] ? vscnprintf+0x80/0x80
[ 241.117368][ T6274] gfs2_fill_super+0x128d/0x1f50
[ 241.122325][ T6274] ? gfs2_reconfigure+0xcd0/0xcd0
[ 241.127361][ T6274] ? preempt_count_add+0x8d/0x190
[ 241.132404][ T6274] ? sb_set_blocksize+0xa5/0xe0
[ 241.137266][ T6274] get_tree_bdev+0x3f1/0x610
[ 241.142000][ T6274] ? gfs2_reconfigure+0xcd0/0xcd0
[ 241.147041][ T6274] gfs2_get_tree+0x4d/0x1e0
[ 241.151578][ T6274] vfs_get_tree+0x88/0x270
[ 241.156039][ T6274] do_new_mount+0x24a/0xa40
[ 241.160556][ T6274] __se_sys_mount+0x2d6/0x3c0
[ 241.165248][ T6274] ? __x64_sys_mount+0xc0/0xc0
[ 241.170026][ T6274] ? lockdep_hardirqs_on+0x94/0x140
[ 241.175231][ T6274] ? __x64_sys_mount+0x1c/0xc0
[ 241.180002][ T6274] do_syscall_64+0x4c/0xa0
[ 241.184442][ T6274] ? clear_bhb_loop+0x30/0x80
[ 241.189208][ T6274] ? clear_bhb_loop+0x30/0x80
[ 241.193897][ T6274] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 241.199805][ T6274] RIP: 0033:0x7fc1174bd76a
[ 241.204227][ T6274] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 241.223848][ T6274] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 241.232282][ T6274] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 241.240265][ T6274] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 241.248280][ T6274] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 241.256270][ T6274] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 241.264807][ T6274] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 241.272807][ T6274]
[ 241.290080][ T6274] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 241.320453][ T6274] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 241.924413][ T6278] loop5: detected capacity change from 0 to 32768
[ 242.070249][ T6278] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 242.094579][ T6278] CPU: 1 PID: 6278 Comm: syz.5.282 Not tainted syzkaller #0
[ 242.101903][ T6278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 242.111979][ T6278] Call Trace:
[ 242.115275][ T6278]
[ 242.118209][ T6278] dump_stack_lvl+0x168/0x230
[ 242.122904][ T6278] ? show_regs_print_info+0x20/0x20
[ 242.128142][ T6278] ? load_image+0x3b0/0x3b0
[ 242.132667][ T6278] sysfs_create_dir_ns+0x252/0x280
[ 242.137800][ T6278] ? __lock_acquire+0x7c60/0x7c60
[ 242.142832][ T6278] ? sysfs_warn_dup+0xa0/0xa0
[ 242.147523][ T6278] ? do_raw_spin_unlock+0x11d/0x230
[ 242.152825][ T6278] kobject_add_internal+0x662/0xd00
[ 242.158130][ T6278] kobject_init_and_add+0x122/0x190
[ 242.163341][ T6278] ? lockdep_softirqs_off+0x420/0x420
[ 242.168731][ T6278] ? kobject_add+0x210/0x210
[ 242.173338][ T6278] ? __init_swait_queue_head+0xa5/0x150
[ 242.178906][ T6278] gfs2_sys_fs_add+0x234/0x480
[ 242.183691][ T6278] ? gfs2_recover_set+0x240/0x240
[ 242.188722][ T6278] ? snprintf+0xd7/0x120
[ 242.193061][ T6278] ? __free_pages+0x95/0x1a0
[ 242.197666][ T6278] ? vscnprintf+0x80/0x80
[ 242.202108][ T6278] gfs2_fill_super+0x128d/0x1f50
[ 242.207064][ T6278] ? gfs2_reconfigure+0xcd0/0xcd0
[ 242.212107][ T6278] ? preempt_count_add+0x8d/0x190
[ 242.217245][ T6278] ? sb_set_blocksize+0xa5/0xe0
[ 242.222191][ T6278] get_tree_bdev+0x3f1/0x610
[ 242.226794][ T6278] ? gfs2_reconfigure+0xcd0/0xcd0
[ 242.231833][ T6278] gfs2_get_tree+0x4d/0x1e0
[ 242.236353][ T6278] vfs_get_tree+0x88/0x270
[ 242.240778][ T6278] do_new_mount+0x24a/0xa40
[ 242.245569][ T6278] __se_sys_mount+0x2d6/0x3c0
[ 242.250276][ T6278] ? __x64_sys_mount+0xc0/0xc0
[ 242.255051][ T6278] ? lockdep_hardirqs_on+0x94/0x140
[ 242.260256][ T6278] ? __x64_sys_mount+0x1c/0xc0
[ 242.265118][ T6278] do_syscall_64+0x4c/0xa0
[ 242.269542][ T6278] ? clear_bhb_loop+0x30/0x80
[ 242.274226][ T6278] ? clear_bhb_loop+0x30/0x80
[ 242.278905][ T6278] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 242.284897][ T6278] RIP: 0033:0x7f6deb47c76a
[ 242.289315][ T6278] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 242.309013][ T6278] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 242.317447][ T6278] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 242.325433][ T6278] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 242.333415][ T6278] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 242.341397][ T6278] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 242.349510][ T6278] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 242.357594][ T6278]
[ 242.364823][ T4275] Bluetooth: hci5: command 0x0406 tx timeout
[ 242.375806][ T6280] loop3: detected capacity change from 0 to 32768
[ 242.455926][ T6282] loop1: detected capacity change from 0 to 32768
[ 242.472619][ T6280] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 242.500600][ T6280] CPU: 1 PID: 6280 Comm: syz.3.283 Not tainted syzkaller #0
[ 242.507942][ T6280] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 242.518130][ T6280] Call Trace:
[ 242.521425][ T6280]
[ 242.524407][ T6280] dump_stack_lvl+0x168/0x230
[ 242.529122][ T6280] ? show_regs_print_info+0x20/0x20
[ 242.531234][ T6278] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 242.534336][ T6280] ? load_image+0x3b0/0x3b0
[ 242.534372][ T6280] sysfs_create_dir_ns+0x252/0x280
[ 242.534394][ T6280] ? __lock_acquire+0x7c60/0x7c60
[ 242.547789][ T6278] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 242.552059][ T6280] ? sysfs_warn_dup+0xa0/0xa0
[ 242.552089][ T6280] ? do_raw_spin_unlock+0x11d/0x230
[ 242.578547][ T6280] kobject_add_internal+0x662/0xd00
[ 242.583742][ T6280] kobject_init_and_add+0x122/0x190
[ 242.588925][ T6280] ? lockdep_softirqs_off+0x420/0x420
[ 242.594424][ T6280] ? kobject_add+0x210/0x210
[ 242.599101][ T6280] ? __init_swait_queue_head+0xa5/0x150
[ 242.604634][ T6280] gfs2_sys_fs_add+0x234/0x480
[ 242.609583][ T6280] ? gfs2_recover_set+0x240/0x240
[ 242.614611][ T6280] ? snprintf+0xd7/0x120
[ 242.618850][ T6280] ? __free_pages+0x95/0x1a0
[ 242.623437][ T6280] ? vscnprintf+0x80/0x80
[ 242.628132][ T6280] gfs2_fill_super+0x128d/0x1f50
[ 242.633267][ T6280] ? gfs2_reconfigure+0xcd0/0xcd0
[ 242.638383][ T6280] ? preempt_count_add+0x8d/0x190
[ 242.643495][ T6280] ? sb_set_blocksize+0xa5/0xe0
[ 242.648383][ T6280] get_tree_bdev+0x3f1/0x610
[ 242.652962][ T6280] ? gfs2_reconfigure+0xcd0/0xcd0
[ 242.657979][ T6280] gfs2_get_tree+0x4d/0x1e0
[ 242.662483][ T6280] vfs_get_tree+0x88/0x270
[ 242.666887][ T6280] do_new_mount+0x24a/0xa40
[ 242.671399][ T6280] __se_sys_mount+0x2d6/0x3c0
[ 242.676069][ T6280] ? __x64_sys_mount+0xc0/0xc0
[ 242.680818][ T6280] ? lockdep_hardirqs_on+0x94/0x140
[ 242.686000][ T6280] ? __x64_sys_mount+0x1c/0xc0
[ 242.690749][ T6280] do_syscall_64+0x4c/0xa0
[ 242.695145][ T6280] ? clear_bhb_loop+0x30/0x80
[ 242.699805][ T6280] ? clear_bhb_loop+0x30/0x80
[ 242.704469][ T6280] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 242.710345][ T6280] RIP: 0033:0x7fe7bdbd476a
[ 242.714775][ T6280] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 242.734454][ T6280] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 242.742943][ T6280] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 242.750998][ T6280] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 242.759215][ T6280] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 242.767344][ T6280] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 242.775388][ T6280] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 242.783447][ T6280]
[ 242.817781][ T6282] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 242.825178][ T6282] CPU: 0 PID: 6282 Comm: syz.1.284 Not tainted syzkaller #0
[ 242.832493][ T6282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 242.842726][ T6282] Call Trace:
[ 242.846009][ T6282]
[ 242.848948][ T6282] dump_stack_lvl+0x168/0x230
[ 242.853718][ T6282] ? show_regs_print_info+0x20/0x20
[ 242.858920][ T6282] ? load_image+0x3b0/0x3b0
[ 242.863633][ T6282] sysfs_create_dir_ns+0x252/0x280
[ 242.868751][ T6282] ? __lock_acquire+0x7c60/0x7c60
[ 242.873782][ T6282] ? sysfs_warn_dup+0xa0/0xa0
[ 242.874943][ T6285] loop2: detected capacity change from 0 to 32768
[ 242.878550][ T6282] ? do_raw_spin_unlock+0x11d/0x230
[ 242.878574][ T6282] kobject_add_internal+0x662/0xd00
[ 242.878599][ T6282] kobject_init_and_add+0x122/0x190
[ 242.878615][ T6282] ? lockdep_softirqs_off+0x420/0x420
[ 242.878638][ T6282] ? kobject_add+0x210/0x210
[ 242.878658][ T6282] ? __init_swait_queue_head+0xa5/0x150
[ 242.878680][ T6282] gfs2_sys_fs_add+0x234/0x480
[ 242.878699][ T6282] ? gfs2_recover_set+0x240/0x240
[ 242.878716][ T6282] ? snprintf+0xd7/0x120
[ 242.878734][ T6282] ? __free_pages+0x95/0x1a0
[ 242.878756][ T6282] ? vscnprintf+0x80/0x80
[ 242.878786][ T6282] gfs2_fill_super+0x128d/0x1f50
[ 242.878819][ T6282] ? gfs2_reconfigure+0xcd0/0xcd0
[ 242.878840][ T6282] ? preempt_count_add+0x8d/0x190
[ 242.878870][ T6282] ? sb_set_blocksize+0xa5/0xe0
[ 242.878893][ T6282] get_tree_bdev+0x3f1/0x610
[ 242.878915][ T6282] ? gfs2_reconfigure+0xcd0/0xcd0
[ 242.878935][ T6282] gfs2_get_tree+0x4d/0x1e0
[ 242.878956][ T6282] vfs_get_tree+0x88/0x270
[ 242.878976][ T6282] do_new_mount+0x24a/0xa40
[ 242.879003][ T6282] __se_sys_mount+0x2d6/0x3c0
[ 242.879026][ T6282] ? __x64_sys_mount+0xc0/0xc0
[ 242.879048][ T6282] ? lockdep_hardirqs_on+0x94/0x140
[ 242.879068][ T6282] ? __x64_sys_mount+0x1c/0xc0
[ 242.879088][ T6282] do_syscall_64+0x4c/0xa0
[ 242.879104][ T6282] ? clear_bhb_loop+0x30/0x80
[ 242.879123][ T6282] ? clear_bhb_loop+0x30/0x80
[ 242.879143][ T6282] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 242.879160][ T6282] RIP: 0033:0x7fc1174bd76a
[ 242.944331][ T6280] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 242.944805][ T6282] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 242.951943][ T6280] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 242.954812][ T6282] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 242.954835][ T6282] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 243.082503][ T6282] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 243.090487][ T6282] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 243.098467][ T6282] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 243.106613][ T6282] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 243.114608][ T6282]
[ 243.144859][ T6282] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 243.158249][ T6282] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 243.176894][ T6285] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.214110][ T6286] loop0: detected capacity change from 0 to 32768
[ 243.237070][ T6285] CPU: 0 PID: 6285 Comm: syz.2.285 Not tainted syzkaller #0
[ 243.244657][ T6285] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 243.254728][ T6285] Call Trace:
[ 243.258153][ T6285]
[ 243.261084][ T6285] dump_stack_lvl+0x168/0x230
[ 243.265858][ T6285] ? show_regs_print_info+0x20/0x20
[ 243.271239][ T6285] ? load_image+0x3b0/0x3b0
[ 243.275853][ T6285] sysfs_create_dir_ns+0x252/0x280
[ 243.280974][ T6285] ? __lock_acquire+0x7c60/0x7c60
[ 243.286181][ T6285] ? sysfs_warn_dup+0xa0/0xa0
[ 243.290875][ T6285] ? do_raw_spin_unlock+0x11d/0x230
[ 243.296179][ T6285] kobject_add_internal+0x662/0xd00
[ 243.301393][ T6285] kobject_init_and_add+0x122/0x190
[ 243.306619][ T6285] ? lockdep_softirqs_off+0x420/0x420
[ 243.312179][ T6285] ? kobject_add+0x210/0x210
[ 243.316787][ T6285] ? __init_swait_queue_head+0xa5/0x150
[ 243.322345][ T6285] gfs2_sys_fs_add+0x234/0x480
[ 243.327127][ T6285] ? gfs2_recover_set+0x240/0x240
[ 243.332159][ T6285] ? snprintf+0xd7/0x120
[ 243.336420][ T6285] ? __free_pages+0x95/0x1a0
[ 243.341026][ T6285] ? vscnprintf+0x80/0x80
[ 243.345488][ T6285] gfs2_fill_super+0x128d/0x1f50
[ 243.350566][ T6285] ? gfs2_reconfigure+0xcd0/0xcd0
[ 243.355704][ T6285] ? preempt_count_add+0x8d/0x190
[ 243.360749][ T6285] ? sb_set_blocksize+0xa5/0xe0
[ 243.365613][ T6285] get_tree_bdev+0x3f1/0x610
[ 243.370221][ T6285] ? gfs2_reconfigure+0xcd0/0xcd0
[ 243.375300][ T6285] gfs2_get_tree+0x4d/0x1e0
[ 243.379809][ T6285] vfs_get_tree+0x88/0x270
[ 243.384335][ T6285] do_new_mount+0x24a/0xa40
[ 243.388852][ T6285] __se_sys_mount+0x2d6/0x3c0
[ 243.393713][ T6285] ? __x64_sys_mount+0xc0/0xc0
[ 243.398488][ T6285] ? lockdep_hardirqs_on+0x94/0x140
[ 243.403699][ T6285] ? __x64_sys_mount+0x1c/0xc0
[ 243.408478][ T6285] do_syscall_64+0x4c/0xa0
[ 243.413096][ T6285] ? clear_bhb_loop+0x30/0x80
[ 243.417860][ T6285] ? clear_bhb_loop+0x30/0x80
[ 243.422541][ T6285] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 243.428446][ T6285] RIP: 0033:0x7fbbe852676a
[ 243.432866][ T6285] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 243.452477][ T6285] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 243.460917][ T6285] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 243.468902][ T6285] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 243.476892][ T6285] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 243.484871][ T6285] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 243.492852][ T6285] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 243.500846][ T6285]
[ 243.592776][ T6286] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 243.607448][ T6286] CPU: 0 PID: 6286 Comm: syz.0.286 Not tainted syzkaller #0
[ 243.614767][ T6286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 243.624825][ T6286] Call Trace:
[ 243.628114][ T6286]
[ 243.631057][ T6286] dump_stack_lvl+0x168/0x230
[ 243.635745][ T6286] ? show_regs_print_info+0x20/0x20
[ 243.640954][ T6286] ? load_image+0x3b0/0x3b0
[ 243.645492][ T6286] sysfs_create_dir_ns+0x252/0x280
[ 243.650620][ T6286] ? __lock_acquire+0x7c60/0x7c60
[ 243.655775][ T6286] ? sysfs_warn_dup+0xa0/0xa0
[ 243.660477][ T6286] ? do_raw_spin_unlock+0x11d/0x230
[ 243.665695][ T6286] kobject_add_internal+0x662/0xd00
[ 243.670914][ T6286] kobject_init_and_add+0x122/0x190
[ 243.676134][ T6286] ? lockdep_softirqs_off+0x420/0x420
[ 243.681611][ T6286] ? kobject_add+0x210/0x210
[ 243.686230][ T6286] ? __init_swait_queue_head+0xa5/0x150
[ 243.691796][ T6286] gfs2_sys_fs_add+0x234/0x480
[ 243.696572][ T6286] ? gfs2_recover_set+0x240/0x240
[ 243.701607][ T6286] ? snprintf+0xd7/0x120
[ 243.705976][ T6286] ? __free_pages+0x95/0x1a0
[ 243.710583][ T6286] ? vscnprintf+0x80/0x80
[ 243.714932][ T6286] gfs2_fill_super+0x128d/0x1f50
[ 243.719895][ T6286] ? gfs2_reconfigure+0xcd0/0xcd0
[ 243.724949][ T6286] ? preempt_count_add+0x8d/0x190
[ 243.730010][ T6286] ? sb_set_blocksize+0xa5/0xe0
[ 243.734881][ T6286] get_tree_bdev+0x3f1/0x610
[ 243.737432][ T6285] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 243.739478][ T6286] ? gfs2_reconfigure+0xcd0/0xcd0
[ 243.739504][ T6286] gfs2_get_tree+0x4d/0x1e0
[ 243.739524][ T6286] vfs_get_tree+0x88/0x270
[ 243.766508][ T6286] do_new_mount+0x24a/0xa40
[ 243.767434][ T6285] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 243.771028][ T6286] __se_sys_mount+0x2d6/0x3c0
[ 243.782275][ T6286] ? __x64_sys_mount+0xc0/0xc0
[ 243.787061][ T6286] ? lockdep_hardirqs_on+0x94/0x140
[ 243.792302][ T6286] ? __x64_sys_mount+0x1c/0xc0
[ 243.797086][ T6286] do_syscall_64+0x4c/0xa0
[ 243.801527][ T6286] ? clear_bhb_loop+0x30/0x80
[ 243.806264][ T6286] ? clear_bhb_loop+0x30/0x80
[ 243.810937][ T6286] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 243.816826][ T6286] RIP: 0033:0x7fd32b6a976a
[ 243.821328][ T6286] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 243.841208][ T6286] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 243.849617][ T6286] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 243.857847][ T6286] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 243.865813][ T6286] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 243.873947][ T6286] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 243.881915][ T6286] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 243.889995][ T6286]
[ 243.921617][ T6286] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 243.948759][ T6286] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 244.733092][ T6290] loop3: detected capacity change from 0 to 32768
[ 244.818233][ T6290] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 244.818711][ T6288] loop5: detected capacity change from 0 to 32768
[ 244.826299][ T6290] CPU: 1 PID: 6290 Comm: syz.3.288 Not tainted syzkaller #0
[ 244.839865][ T6290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 244.849932][ T6290] Call Trace:
[ 244.853312][ T6290]
[ 244.856252][ T6290] dump_stack_lvl+0x168/0x230
[ 244.860961][ T6290] ? show_regs_print_info+0x20/0x20
[ 244.866171][ T6290] ? load_image+0x3b0/0x3b0
[ 244.870693][ T6290] sysfs_create_dir_ns+0x252/0x280
[ 244.875916][ T6290] ? __lock_acquire+0x7c60/0x7c60
[ 244.880958][ T6290] ? sysfs_warn_dup+0xa0/0xa0
[ 244.885857][ T6290] ? do_raw_spin_unlock+0x11d/0x230
[ 244.891165][ T6290] kobject_add_internal+0x662/0xd00
[ 244.896376][ T6290] kobject_init_and_add+0x122/0x190
[ 244.901673][ T6290] ? lockdep_softirqs_off+0x420/0x420
[ 244.907065][ T6290] ? kobject_add+0x210/0x210
[ 244.911678][ T6290] ? __init_swait_queue_head+0xa5/0x150
[ 244.917250][ T6290] gfs2_sys_fs_add+0x234/0x480
[ 244.922119][ T6290] ? gfs2_recover_set+0x240/0x240
[ 244.927160][ T6290] ? snprintf+0xd7/0x120
[ 244.931424][ T6290] ? __free_pages+0x95/0x1a0
[ 244.936125][ T6290] ? vscnprintf+0x80/0x80
[ 244.940472][ T6290] gfs2_fill_super+0x128d/0x1f50
[ 244.945436][ T6290] ? gfs2_reconfigure+0xcd0/0xcd0
[ 244.950470][ T6290] ? preempt_count_add+0x8d/0x190
[ 244.955506][ T6290] ? sb_set_blocksize+0xa5/0xe0
[ 244.960460][ T6290] get_tree_bdev+0x3f1/0x610
[ 244.965055][ T6290] ? gfs2_reconfigure+0xcd0/0xcd0
[ 244.967741][ T6292] loop1: detected capacity change from 0 to 32768
[ 244.970181][ T6290] gfs2_get_tree+0x4d/0x1e0
[ 244.979530][ T6294] loop0: detected capacity change from 0 to 32768
[ 244.981074][ T6290] vfs_get_tree+0x88/0x270
[ 244.992090][ T6290] do_new_mount+0x24a/0xa40
[ 244.996624][ T6290] __se_sys_mount+0x2d6/0x3c0
[ 245.001579][ T6290] ? __x64_sys_mount+0xc0/0xc0
[ 245.006355][ T6290] ? lockdep_hardirqs_on+0x94/0x140
[ 245.011568][ T6290] ? __x64_sys_mount+0x1c/0xc0
[ 245.016524][ T6290] do_syscall_64+0x4c/0xa0
[ 245.020951][ T6290] ? clear_bhb_loop+0x30/0x80
[ 245.025830][ T6290] ? clear_bhb_loop+0x30/0x80
[ 245.030520][ T6290] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 245.036430][ T6290] RIP: 0033:0x7fe7bdbd476a
[ 245.040874][ T6290] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 245.060493][ T6290] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.069022][ T6290] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 245.077012][ T6290] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 245.084999][ T6290] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 245.092982][ T6290] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 245.101060][ T6290] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 245.109179][ T6290]
[ 245.114733][ T6290] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.128178][ T6290] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.160817][ T6288] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.161795][ T6296] loop2: detected capacity change from 0 to 32768
[ 245.168435][ T6292] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.184033][ T6294] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.198631][ T6288] CPU: 0 PID: 6288 Comm: syz.5.287 Not tainted syzkaller #0
[ 245.205956][ T6288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 245.216050][ T6288] Call Trace:
[ 245.219336][ T6288]
[ 245.222273][ T6288] dump_stack_lvl+0x168/0x230
[ 245.226974][ T6288] ? show_regs_print_info+0x20/0x20
[ 245.232185][ T6288] ? load_image+0x3b0/0x3b0
[ 245.236712][ T6288] sysfs_create_dir_ns+0x252/0x280
[ 245.241840][ T6288] ? __lock_acquire+0x7c60/0x7c60
[ 245.246880][ T6288] ? sysfs_warn_dup+0xa0/0xa0
[ 245.251659][ T6288] ? do_raw_spin_unlock+0x11d/0x230
[ 245.256873][ T6288] kobject_add_internal+0x662/0xd00
[ 245.262082][ T6288] kobject_init_and_add+0x122/0x190
[ 245.267279][ T6288] ? lockdep_softirqs_off+0x420/0x420
[ 245.272742][ T6288] ? kobject_add+0x210/0x210
[ 245.277335][ T6288] ? __init_swait_queue_head+0xa5/0x150
[ 245.282975][ T6288] gfs2_sys_fs_add+0x234/0x480
[ 245.287742][ T6288] ? gfs2_recover_set+0x240/0x240
[ 245.292775][ T6288] ? snprintf+0xd7/0x120
[ 245.297012][ T6288] ? __free_pages+0x95/0x1a0
[ 245.301592][ T6288] ? vscnprintf+0x80/0x80
[ 245.306114][ T6288] gfs2_fill_super+0x128d/0x1f50
[ 245.311056][ T6288] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.316073][ T6288] ? preempt_count_add+0x8d/0x190
[ 245.321111][ T6288] ? sb_set_blocksize+0xa5/0xe0
[ 245.325964][ T6288] get_tree_bdev+0x3f1/0x610
[ 245.330566][ T6288] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.335602][ T6288] gfs2_get_tree+0x4d/0x1e0
[ 245.340148][ T6288] vfs_get_tree+0x88/0x270
[ 245.344698][ T6288] do_new_mount+0x24a/0xa40
[ 245.349209][ T6288] __se_sys_mount+0x2d6/0x3c0
[ 245.353901][ T6288] ? __x64_sys_mount+0xc0/0xc0
[ 245.358675][ T6288] ? lockdep_hardirqs_on+0x94/0x140
[ 245.363874][ T6288] ? __x64_sys_mount+0x1c/0xc0
[ 245.368636][ T6288] do_syscall_64+0x4c/0xa0
[ 245.373151][ T6288] ? clear_bhb_loop+0x30/0x80
[ 245.377832][ T6288] ? clear_bhb_loop+0x30/0x80
[ 245.382525][ T6288] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 245.388423][ T6288] RIP: 0033:0x7f6deb47c76a
[ 245.392845][ T6288] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 245.412621][ T6288] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.421213][ T6288] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 245.429186][ T6288] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 245.437160][ T6288] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 245.445231][ T6288] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 245.453205][ T6288] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 245.461290][ T6288]
[ 245.464301][ T6292] CPU: 1 PID: 6292 Comm: syz.1.289 Not tainted syzkaller #0
[ 245.471429][ T6288] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 245.471589][ T6292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 245.471601][ T6292] Call Trace:
[ 245.484804][ T6288] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 245.494707][ T6292]
[ 245.494717][ T6292] dump_stack_lvl+0x168/0x230
[ 245.512043][ T6292] ? show_regs_print_info+0x20/0x20
[ 245.517237][ T6292] ? load_image+0x3b0/0x3b0
[ 245.521737][ T6292] sysfs_create_dir_ns+0x252/0x280
[ 245.526838][ T6292] ? __lock_acquire+0x7c60/0x7c60
[ 245.532113][ T6292] ? sysfs_warn_dup+0xa0/0xa0
[ 245.537092][ T6292] ? do_raw_spin_unlock+0x11d/0x230
[ 245.542388][ T6292] kobject_add_internal+0x662/0xd00
[ 245.547679][ T6292] kobject_init_and_add+0x122/0x190
[ 245.552869][ T6292] ? lockdep_softirqs_off+0x420/0x420
[ 245.558249][ T6292] ? kobject_add+0x210/0x210
[ 245.562847][ T6292] ? __init_swait_queue_head+0xa5/0x150
[ 245.568417][ T6292] gfs2_sys_fs_add+0x234/0x480
[ 245.573178][ T6292] ? gfs2_recover_set+0x240/0x240
[ 245.578245][ T6292] ? snprintf+0xd7/0x120
[ 245.582583][ T6292] ? __free_pages+0x95/0x1a0
[ 245.587181][ T6292] ? vscnprintf+0x80/0x80
[ 245.591533][ T6292] gfs2_fill_super+0x128d/0x1f50
[ 245.596495][ T6292] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.601617][ T6292] ? preempt_count_add+0x8d/0x190
[ 245.606684][ T6292] ? sb_set_blocksize+0xa5/0xe0
[ 245.611547][ T6292] get_tree_bdev+0x3f1/0x610
[ 245.616167][ T6292] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.621254][ T6292] gfs2_get_tree+0x4d/0x1e0
[ 245.625779][ T6292] vfs_get_tree+0x88/0x270
[ 245.630232][ T6292] do_new_mount+0x24a/0xa40
[ 245.634756][ T6292] __se_sys_mount+0x2d6/0x3c0
[ 245.639450][ T6292] ? __x64_sys_mount+0xc0/0xc0
[ 245.644240][ T6292] ? lockdep_hardirqs_on+0x94/0x140
[ 245.649448][ T6292] ? __x64_sys_mount+0x1c/0xc0
[ 245.654230][ T6292] do_syscall_64+0x4c/0xa0
[ 245.658641][ T6292] ? clear_bhb_loop+0x30/0x80
[ 245.663322][ T6292] ? clear_bhb_loop+0x30/0x80
[ 245.668010][ T6292] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 245.673985][ T6292] RIP: 0033:0x7fc1174bd76a
[ 245.678519][ T6292] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 245.698301][ T6292] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.706709][ T6292] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 245.714976][ T6292] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 245.722947][ T6292] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 245.730909][ T6292] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 245.738879][ T6292] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 245.746862][ T6292]
[ 245.750023][ T6294] CPU: 0 PID: 6294 Comm: syz.0.290 Not tainted syzkaller #0
[ 245.757318][ T6294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 245.767465][ T6294] Call Trace:
[ 245.770746][ T6294]
[ 245.773680][ T6294] dump_stack_lvl+0x168/0x230
[ 245.778377][ T6294] ? show_regs_print_info+0x20/0x20
[ 245.783595][ T6294] ? load_image+0x3b0/0x3b0
[ 245.783709][ T6296] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 245.788200][ T6294] sysfs_create_dir_ns+0x252/0x280
[ 245.788223][ T6294] ? __lock_acquire+0x7c60/0x7c60
[ 245.788242][ T6294] ? sysfs_warn_dup+0xa0/0xa0
[ 245.788264][ T6294] ? do_raw_spin_unlock+0x11d/0x230
[ 245.815651][ T6294] kobject_add_internal+0x662/0xd00
[ 245.820869][ T6294] kobject_init_and_add+0x122/0x190
[ 245.826079][ T6294] ? lockdep_softirqs_off+0x420/0x420
[ 245.831464][ T6294] ? kobject_add+0x210/0x210
[ 245.836504][ T6294] ? __init_swait_queue_head+0xa5/0x150
[ 245.842152][ T6294] gfs2_sys_fs_add+0x234/0x480
[ 245.846922][ T6294] ? gfs2_recover_set+0x240/0x240
[ 245.851949][ T6294] ? snprintf+0xd7/0x120
[ 245.856195][ T6294] ? __free_pages+0x95/0x1a0
[ 245.860795][ T6294] ? vscnprintf+0x80/0x80
[ 245.865148][ T6294] gfs2_fill_super+0x128d/0x1f50
[ 245.870116][ T6294] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.875156][ T6294] ? preempt_count_add+0x8d/0x190
[ 245.880233][ T6294] ? sb_set_blocksize+0xa5/0xe0
[ 245.885475][ T6294] get_tree_bdev+0x3f1/0x610
[ 245.890072][ T6294] ? gfs2_reconfigure+0xcd0/0xcd0
[ 245.895121][ T6294] gfs2_get_tree+0x4d/0x1e0
[ 245.899645][ T6294] vfs_get_tree+0x88/0x270
[ 245.904068][ T6294] do_new_mount+0x24a/0xa40
[ 245.908583][ T6294] __se_sys_mount+0x2d6/0x3c0
[ 245.913270][ T6294] ? __x64_sys_mount+0xc0/0xc0
[ 245.918038][ T6294] ? lockdep_hardirqs_on+0x94/0x140
[ 245.923321][ T6294] ? __x64_sys_mount+0x1c/0xc0
[ 245.928082][ T6294] do_syscall_64+0x4c/0xa0
[ 245.932500][ T6294] ? clear_bhb_loop+0x30/0x80
[ 245.937182][ T6294] ? clear_bhb_loop+0x30/0x80
[ 245.941857][ T6294] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 245.947750][ T6294] RIP: 0033:0x7fd32b6a976a
[ 245.952168][ T6294] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 245.972093][ T6294] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 245.980822][ T6294] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 245.988821][ T6294] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 245.997260][ T6294] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 246.005572][ T6294] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 246.013731][ T6294] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 246.021732][ T6294]
[ 246.045145][ T6296] CPU: 1 PID: 6296 Comm: syz.2.291 Not tainted syzkaller #0
[ 246.048553][ T6294] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 246.052464][ T6296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 246.052481][ T6296] Call Trace:
[ 246.052489][ T6296]
[ 246.052496][ T6296] dump_stack_lvl+0x168/0x230
[ 246.052522][ T6296] ? show_regs_print_info+0x20/0x20
[ 246.052539][ T6296] ? load_image+0x3b0/0x3b0
[ 246.052568][ T6296] sysfs_create_dir_ns+0x252/0x280
[ 246.052589][ T6296] ? __lock_acquire+0x7c60/0x7c60
[ 246.052609][ T6296] ? sysfs_warn_dup+0xa0/0xa0
[ 246.052633][ T6296] ? do_raw_spin_unlock+0x11d/0x230
[ 246.052654][ T6296] kobject_add_internal+0x662/0xd00
[ 246.052681][ T6296] kobject_init_and_add+0x122/0x190
[ 246.052699][ T6296] ? lockdep_softirqs_off+0x420/0x420
[ 246.052722][ T6296] ? kobject_add+0x210/0x210
[ 246.052744][ T6296] ? __init_swait_queue_head+0xa5/0x150
[ 246.052768][ T6296] gfs2_sys_fs_add+0x234/0x480
[ 246.052788][ T6296] ? gfs2_recover_set+0x240/0x240
[ 246.052806][ T6296] ? snprintf+0xd7/0x120
[ 246.052824][ T6296] ? __free_pages+0x95/0x1a0
[ 246.052847][ T6296] ? vscnprintf+0x80/0x80
[ 246.052876][ T6296] gfs2_fill_super+0x128d/0x1f50
[ 246.052909][ T6296] ? gfs2_reconfigure+0xcd0/0xcd0
[ 246.052930][ T6296] ? preempt_count_add+0x8d/0x190
[ 246.052957][ T6296] ? sb_set_blocksize+0xa5/0xe0
[ 246.052977][ T6296] get_tree_bdev+0x3f1/0x610
[ 246.052997][ T6296] ? gfs2_reconfigure+0xcd0/0xcd0
[ 246.053017][ T6296] gfs2_get_tree+0x4d/0x1e0
[ 246.053038][ T6296] vfs_get_tree+0x88/0x270
[ 246.053057][ T6296] do_new_mount+0x24a/0xa40
[ 246.053082][ T6296] __se_sys_mount+0x2d6/0x3c0
[ 246.053105][ T6296] ? __x64_sys_mount+0xc0/0xc0
[ 246.053127][ T6296] ? lockdep_hardirqs_on+0x94/0x140
[ 246.053147][ T6296] ? __x64_sys_mount+0x1c/0xc0
[ 246.053166][ T6296] do_syscall_64+0x4c/0xa0
[ 246.066826][ T6294] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 246.076653][ T6296] ? clear_bhb_loop+0x30/0x80
[ 246.076677][ T6296] ? clear_bhb_loop+0x30/0x80
[ 246.076695][ T6296] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 246.254678][ T6296] RIP: 0033:0x7fbbe852676a
[ 246.259108][ T6296] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 246.278957][ T6296] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 246.287355][ T6296] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 246.295315][ T6296] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 246.303269][ T6296] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 246.311313][ T6296] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 246.319354][ T6296] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 246.327319][ T6296]
[ 246.333542][ T6292] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
2025/12/08 15:47:32 executed programs: 285
[ 246.369603][ T6292] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 246.707402][ T6296] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 246.740963][ T6296] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 247.339334][ T6299] loop3: detected capacity change from 0 to 32768
[ 247.416146][ T6300] loop1: detected capacity change from 0 to 32768
[ 247.423103][ T6299] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.437326][ T6299] CPU: 1 PID: 6299 Comm: syz.3.292 Not tainted syzkaller #0
[ 247.444676][ T6299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 247.454922][ T6299] Call Trace:
[ 247.458214][ T6299]
[ 247.461152][ T6299] dump_stack_lvl+0x168/0x230
[ 247.465853][ T6299] ? show_regs_print_info+0x20/0x20
[ 247.471072][ T6299] ? load_image+0x3b0/0x3b0
[ 247.475603][ T6299] sysfs_create_dir_ns+0x252/0x280
[ 247.480739][ T6299] ? __lock_acquire+0x7c60/0x7c60
[ 247.485775][ T6299] ? sysfs_warn_dup+0xa0/0xa0
[ 247.490470][ T6299] ? do_raw_spin_unlock+0x11d/0x230
[ 247.495677][ T6299] kobject_add_internal+0x662/0xd00
[ 247.500978][ T6299] kobject_init_and_add+0x122/0x190
[ 247.506190][ T6299] ? lockdep_softirqs_off+0x420/0x420
[ 247.511577][ T6299] ? kobject_add+0x210/0x210
[ 247.516364][ T6299] ? __init_swait_queue_head+0xa5/0x150
[ 247.521935][ T6299] gfs2_sys_fs_add+0x234/0x480
[ 247.526727][ T6299] ? gfs2_recover_set+0x240/0x240
[ 247.531763][ T6299] ? snprintf+0xd7/0x120
[ 247.536036][ T6299] ? __free_pages+0x95/0x1a0
[ 247.540692][ T6299] ? vscnprintf+0x80/0x80
[ 247.545042][ T6299] gfs2_fill_super+0x128d/0x1f50
[ 247.550171][ T6299] ? gfs2_reconfigure+0xcd0/0xcd0
[ 247.555202][ T6299] ? preempt_count_add+0x8d/0x190
[ 247.560249][ T6299] ? sb_set_blocksize+0xa5/0xe0
[ 247.565115][ T6299] get_tree_bdev+0x3f1/0x610
[ 247.569722][ T6299] ? gfs2_reconfigure+0xcd0/0xcd0
[ 247.574761][ T6299] gfs2_get_tree+0x4d/0x1e0
[ 247.579301][ T6299] vfs_get_tree+0x88/0x270
[ 247.583751][ T6299] do_new_mount+0x24a/0xa40
[ 247.588273][ T6299] __se_sys_mount+0x2d6/0x3c0
[ 247.592972][ T6299] ? __x64_sys_mount+0xc0/0xc0
[ 247.597796][ T6299] ? lockdep_hardirqs_on+0x94/0x140
[ 247.603086][ T6299] ? __x64_sys_mount+0x1c/0xc0
[ 247.607871][ T6299] do_syscall_64+0x4c/0xa0
[ 247.612302][ T6299] ? clear_bhb_loop+0x30/0x80
[ 247.616997][ T6299] ? clear_bhb_loop+0x30/0x80
[ 247.621810][ T6299] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 247.627714][ T6299] RIP: 0033:0x7fe7bdbd476a
[ 247.632232][ T6299] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 247.651941][ T6299] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.660383][ T6299] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 247.668365][ T6299] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 247.676357][ T6299] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 247.684349][ T6299] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 247.692328][ T6299] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 247.700411][ T6299]
[ 247.753361][ T6300] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 247.768023][ T6300] CPU: 1 PID: 6300 Comm: syz.1.293 Not tainted syzkaller #0
[ 247.775342][ T6300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 247.785502][ T6300] Call Trace:
[ 247.788797][ T6300]
[ 247.791740][ T6300] dump_stack_lvl+0x168/0x230
[ 247.796429][ T6300] ? show_regs_print_info+0x20/0x20
[ 247.801634][ T6300] ? load_image+0x3b0/0x3b0
[ 247.806158][ T6300] sysfs_create_dir_ns+0x252/0x280
[ 247.811292][ T6300] ? __lock_acquire+0x7c60/0x7c60
[ 247.816336][ T6300] ? sysfs_warn_dup+0xa0/0xa0
[ 247.821027][ T6300] ? do_raw_spin_unlock+0x11d/0x230
[ 247.826235][ T6300] kobject_add_internal+0x662/0xd00
[ 247.831455][ T6300] kobject_init_and_add+0x122/0x190
[ 247.836709][ T6300] ? lockdep_softirqs_off+0x420/0x420
[ 247.842099][ T6300] ? kobject_add+0x210/0x210
[ 247.846706][ T6300] ? __init_swait_queue_head+0xa5/0x150
[ 247.852614][ T6300] gfs2_sys_fs_add+0x234/0x480
[ 247.857656][ T6300] ? gfs2_recover_set+0x240/0x240
[ 247.862701][ T6300] ? snprintf+0xd7/0x120
[ 247.867116][ T6300] ? __free_pages+0x95/0x1a0
[ 247.871721][ T6300] ? vscnprintf+0x80/0x80
[ 247.876069][ T6300] gfs2_fill_super+0x128d/0x1f50
[ 247.881118][ T6300] ? gfs2_reconfigure+0xcd0/0xcd0
[ 247.886244][ T6300] ? preempt_count_add+0x8d/0x190
[ 247.891293][ T6300] ? sb_set_blocksize+0xa5/0xe0
[ 247.896150][ T6300] get_tree_bdev+0x3f1/0x610
[ 247.900848][ T6300] ? gfs2_reconfigure+0xcd0/0xcd0
[ 247.905889][ T6300] gfs2_get_tree+0x4d/0x1e0
[ 247.909083][ T6304] loop0: detected capacity change from 0 to 32768
[ 247.910488][ T6300] vfs_get_tree+0x88/0x270
[ 247.921307][ T6300] do_new_mount+0x24a/0xa40
[ 247.925828][ T6300] __se_sys_mount+0x2d6/0x3c0
[ 247.930511][ T6300] ? __x64_sys_mount+0xc0/0xc0
[ 247.935302][ T6300] ? lockdep_hardirqs_on+0x94/0x140
[ 247.940513][ T6300] ? __x64_sys_mount+0x1c/0xc0
[ 247.945294][ T6300] do_syscall_64+0x4c/0xa0
[ 247.949735][ T6300] ? clear_bhb_loop+0x30/0x80
[ 247.954415][ T6300] ? clear_bhb_loop+0x30/0x80
[ 247.959174][ T6300] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 247.965050][ T6300] RIP: 0033:0x7fc1174bd76a
[ 247.969456][ T6300] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 247.989312][ T6300] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 247.997747][ T6300] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 248.005715][ T6300] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 248.013681][ T6300] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 248.021636][ T6300] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 248.029590][ T6300] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 248.037728][ T6300]
[ 248.044482][ T6299] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.077357][ T6300] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.091615][ T6304] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.111707][ T6304] CPU: 0 PID: 6304 Comm: syz.0.295 Not tainted syzkaller #0
[ 248.115817][ T6306] loop2: detected capacity change from 0 to 32768
[ 248.119025][ T6304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 248.119038][ T6304] Call Trace:
[ 248.119044][ T6304]
[ 248.119052][ T6304] dump_stack_lvl+0x168/0x230
[ 248.119076][ T6304] ? show_regs_print_info+0x20/0x20
[ 248.119094][ T6304] ? load_image+0x3b0/0x3b0
[ 248.151447][ T6299] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.151586][ T6304] sysfs_create_dir_ns+0x252/0x280
[ 248.159989][ T6300] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.162550][ T6304] ? __lock_acquire+0x7c60/0x7c60
[ 248.162576][ T6304] ? sysfs_warn_dup+0xa0/0xa0
[ 248.162600][ T6304] ? do_raw_spin_unlock+0x11d/0x230
[ 248.179486][ T6302] loop5: detected capacity change from 0 to 32768
[ 248.183928][ T6304] kobject_add_internal+0x662/0xd00
[ 248.183959][ T6304] kobject_init_and_add+0x122/0x190
[ 248.205957][ T6304] ? lockdep_softirqs_off+0x420/0x420
[ 248.211341][ T6304] ? kobject_add+0x210/0x210
[ 248.215960][ T6304] ? __init_swait_queue_head+0xa5/0x150
[ 248.221511][ T6304] gfs2_sys_fs_add+0x234/0x480
[ 248.226637][ T6304] ? gfs2_recover_set+0x240/0x240
[ 248.231661][ T6304] ? snprintf+0xd7/0x120
[ 248.235925][ T6304] ? __free_pages+0x95/0x1a0
[ 248.240522][ T6304] ? vscnprintf+0x80/0x80
[ 248.244859][ T6304] gfs2_fill_super+0x128d/0x1f50
[ 248.249932][ T6304] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.255156][ T6304] ? preempt_count_add+0x8d/0x190
[ 248.260411][ T6304] ? sb_set_blocksize+0xa5/0xe0
[ 248.265281][ T6304] get_tree_bdev+0x3f1/0x610
[ 248.269876][ T6304] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.274910][ T6304] gfs2_get_tree+0x4d/0x1e0
[ 248.279425][ T6304] vfs_get_tree+0x88/0x270
[ 248.283839][ T6304] do_new_mount+0x24a/0xa40
[ 248.288342][ T6304] __se_sys_mount+0x2d6/0x3c0
[ 248.293041][ T6304] ? __x64_sys_mount+0xc0/0xc0
[ 248.297894][ T6304] ? lockdep_hardirqs_on+0x94/0x140
[ 248.303093][ T6304] ? __x64_sys_mount+0x1c/0xc0
[ 248.307850][ T6304] do_syscall_64+0x4c/0xa0
[ 248.312266][ T6304] ? clear_bhb_loop+0x30/0x80
[ 248.316939][ T6304] ? clear_bhb_loop+0x30/0x80
[ 248.321603][ T6304] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.327499][ T6304] RIP: 0033:0x7fd32b6a976a
[ 248.331914][ T6304] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 248.351710][ T6304] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.360239][ T6304] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 248.368215][ T6304] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 248.376196][ T6304] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 248.384159][ T6304] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 248.392122][ T6304] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 248.400184][ T6304]
[ 248.406767][ T6304] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.421486][ T6304] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.443583][ T6302] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.452255][ T6306] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 248.462160][ T6302] CPU: 0 PID: 6302 Comm: syz.5.294 Not tainted syzkaller #0
[ 248.469551][ T6302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 248.479607][ T6302] Call Trace:
[ 248.482915][ T6302]
[ 248.485872][ T6302] dump_stack_lvl+0x168/0x230
[ 248.490781][ T6302] ? show_regs_print_info+0x20/0x20
[ 248.496084][ T6302] ? load_image+0x3b0/0x3b0
[ 248.500604][ T6302] sysfs_create_dir_ns+0x252/0x280
[ 248.505736][ T6302] ? __lock_acquire+0x7c60/0x7c60
[ 248.510779][ T6302] ? sysfs_warn_dup+0xa0/0xa0
[ 248.515483][ T6302] ? do_raw_spin_unlock+0x11d/0x230
[ 248.520788][ T6302] kobject_add_internal+0x662/0xd00
[ 248.526016][ T6302] kobject_init_and_add+0x122/0x190
[ 248.531235][ T6302] ? lockdep_softirqs_off+0x420/0x420
[ 248.536767][ T6302] ? kobject_add+0x210/0x210
[ 248.541457][ T6302] ? __init_swait_queue_head+0xa5/0x150
[ 248.547016][ T6302] gfs2_sys_fs_add+0x234/0x480
[ 248.551815][ T6302] ? gfs2_recover_set+0x240/0x240
[ 248.556856][ T6302] ? snprintf+0xd7/0x120
[ 248.561107][ T6302] ? __free_pages+0x95/0x1a0
[ 248.565714][ T6302] ? vscnprintf+0x80/0x80
[ 248.570061][ T6302] gfs2_fill_super+0x128d/0x1f50
[ 248.575104][ T6302] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.580137][ T6302] ? preempt_count_add+0x8d/0x190
[ 248.585185][ T6302] ? sb_set_blocksize+0xa5/0xe0
[ 248.590042][ T6302] get_tree_bdev+0x3f1/0x610
[ 248.594639][ T6302] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.599665][ T6302] gfs2_get_tree+0x4d/0x1e0
[ 248.604174][ T6302] vfs_get_tree+0x88/0x270
[ 248.608610][ T6302] do_new_mount+0x24a/0xa40
[ 248.613123][ T6302] __se_sys_mount+0x2d6/0x3c0
[ 248.617816][ T6302] ? __x64_sys_mount+0xc0/0xc0
[ 248.622583][ T6302] ? lockdep_hardirqs_on+0x94/0x140
[ 248.627780][ T6302] ? __x64_sys_mount+0x1c/0xc0
[ 248.632547][ T6302] do_syscall_64+0x4c/0xa0
[ 248.636977][ T6302] ? clear_bhb_loop+0x30/0x80
[ 248.641655][ T6302] ? clear_bhb_loop+0x30/0x80
[ 248.646335][ T6302] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.652231][ T6302] RIP: 0033:0x7f6deb47c76a
[ 248.656666][ T6302] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 248.676282][ T6302] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.684712][ T6302] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 248.692703][ T6302] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 248.700773][ T6302] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 248.708752][ T6302] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 248.716735][ T6302] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 248.724727][ T6302]
[ 248.730234][ T6306] CPU: 1 PID: 6306 Comm: syz.2.296 Not tainted syzkaller #0
[ 248.737627][ T6306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 248.747773][ T6306] Call Trace:
[ 248.751058][ T6306]
[ 248.753998][ T6306] dump_stack_lvl+0x168/0x230
[ 248.758688][ T6306] ? show_regs_print_info+0x20/0x20
[ 248.760863][ T6302] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 248.763927][ T6306] ? load_image+0x3b0/0x3b0
[ 248.763957][ T6306] sysfs_create_dir_ns+0x252/0x280
[ 248.777934][ T6302] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 248.782273][ T6306] ? __lock_acquire+0x7c60/0x7c60
[ 248.799102][ T6306] ? sysfs_warn_dup+0xa0/0xa0
[ 248.803840][ T6306] ? do_raw_spin_unlock+0x11d/0x230
[ 248.809054][ T6306] kobject_add_internal+0x662/0xd00
[ 248.814276][ T6306] kobject_init_and_add+0x122/0x190
[ 248.819486][ T6306] ? lockdep_softirqs_off+0x420/0x420
[ 248.824884][ T6306] ? kobject_add+0x210/0x210
[ 248.829493][ T6306] ? __init_swait_queue_head+0xa5/0x150
[ 248.835058][ T6306] gfs2_sys_fs_add+0x234/0x480
[ 248.839871][ T6306] ? gfs2_recover_set+0x240/0x240
[ 248.844994][ T6306] ? snprintf+0xd7/0x120
[ 248.849248][ T6306] ? __free_pages+0x95/0x1a0
[ 248.853969][ T6306] ? vscnprintf+0x80/0x80
[ 248.858328][ T6306] gfs2_fill_super+0x128d/0x1f50
[ 248.863513][ T6306] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.868658][ T6306] ? preempt_count_add+0x8d/0x190
[ 248.873792][ T6306] ? sb_set_blocksize+0xa5/0xe0
[ 248.878931][ T6306] get_tree_bdev+0x3f1/0x610
[ 248.883629][ T6306] ? gfs2_reconfigure+0xcd0/0xcd0
[ 248.888802][ T6306] gfs2_get_tree+0x4d/0x1e0
[ 248.893339][ T6306] vfs_get_tree+0x88/0x270
[ 248.897773][ T6306] do_new_mount+0x24a/0xa40
[ 248.902647][ T6306] __se_sys_mount+0x2d6/0x3c0
[ 248.907348][ T6306] ? __x64_sys_mount+0xc0/0xc0
[ 248.912128][ T6306] ? lockdep_hardirqs_on+0x94/0x140
[ 248.917339][ T6306] ? __x64_sys_mount+0x1c/0xc0
[ 248.922123][ T6306] do_syscall_64+0x4c/0xa0
[ 248.926552][ T6306] ? clear_bhb_loop+0x30/0x80
[ 248.931321][ T6306] ? clear_bhb_loop+0x30/0x80
[ 248.935990][ T6306] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 248.942128][ T6306] RIP: 0033:0x7fbbe852676a
[ 248.946533][ T6306] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 248.966211][ T6306] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 248.974613][ T6306] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 248.982569][ T6306] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 248.990528][ T6306] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 248.998485][ T6306] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 249.006436][ T6306] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 249.014402][ T6306]
[ 249.152547][ T6306] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 249.172240][ T6306] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 249.896698][ T6311] loop5: detected capacity change from 0 to 32768
[ 249.931208][ T6309] loop1: detected capacity change from 0 to 32768
[ 249.970950][ T6311] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 249.989940][ T6309] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.000598][ T6309] CPU: 1 PID: 6309 Comm: syz.1.298 Not tainted syzkaller #0
[ 250.008096][ T6309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 250.018245][ T6309] Call Trace:
[ 250.021528][ T6309]
[ 250.024481][ T6309] dump_stack_lvl+0x168/0x230
[ 250.029166][ T6309] ? show_regs_print_info+0x20/0x20
[ 250.034465][ T6309] ? load_image+0x3b0/0x3b0
[ 250.039074][ T6309] sysfs_create_dir_ns+0x252/0x280
[ 250.044307][ T6309] ? __lock_acquire+0x7c60/0x7c60
[ 250.049440][ T6309] ? sysfs_warn_dup+0xa0/0xa0
[ 250.049819][ T6312] loop3: detected capacity change from 0 to 32768
[ 250.054132][ T6309] ? do_raw_spin_unlock+0x11d/0x230
[ 250.065996][ T6309] kobject_add_internal+0x662/0xd00
[ 250.071212][ T6309] kobject_init_and_add+0x122/0x190
[ 250.076420][ T6309] ? lockdep_softirqs_off+0x420/0x420
[ 250.081802][ T6309] ? kobject_add+0x210/0x210
[ 250.086493][ T6309] ? __init_swait_queue_head+0xa5/0x150
[ 250.092047][ T6309] gfs2_sys_fs_add+0x234/0x480
[ 250.096926][ T6309] ? gfs2_recover_set+0x240/0x240
[ 250.101948][ T6309] ? snprintf+0xd7/0x120
[ 250.106202][ T6309] ? __free_pages+0x95/0x1a0
[ 250.110807][ T6309] ? vscnprintf+0x80/0x80
[ 250.115326][ T6309] gfs2_fill_super+0x128d/0x1f50
[ 250.120283][ T6309] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.125318][ T6309] ? preempt_count_add+0x8d/0x190
[ 250.130339][ T6309] ? sb_set_blocksize+0xa5/0xe0
[ 250.135175][ T6309] get_tree_bdev+0x3f1/0x610
[ 250.139748][ T6309] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.144770][ T6309] gfs2_get_tree+0x4d/0x1e0
[ 250.149347][ T6309] vfs_get_tree+0x88/0x270
[ 250.153749][ T6309] do_new_mount+0x24a/0xa40
[ 250.158298][ T6309] __se_sys_mount+0x2d6/0x3c0
[ 250.162962][ T6309] ? __x64_sys_mount+0xc0/0xc0
[ 250.167713][ T6309] ? lockdep_hardirqs_on+0x94/0x140
[ 250.172892][ T6309] ? __x64_sys_mount+0x1c/0xc0
[ 250.177642][ T6309] do_syscall_64+0x4c/0xa0
[ 250.182061][ T6309] ? clear_bhb_loop+0x30/0x80
[ 250.186808][ T6309] ? clear_bhb_loop+0x30/0x80
[ 250.191650][ T6309] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.197525][ T6309] RIP: 0033:0x7fc1174bd76a
[ 250.201920][ T6309] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 250.221508][ T6309] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.230083][ T6309] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 250.238299][ T6309] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 250.246427][ T6309] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 250.254392][ T6309] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 250.262346][ T6309] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 250.270426][ T6309]
[ 250.285629][ T6311] CPU: 1 PID: 6311 Comm: syz.5.299 Not tainted syzkaller #0
[ 250.292945][ T6311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 250.303008][ T6311] Call Trace:
[ 250.306299][ T6311]
[ 250.309240][ T6311] dump_stack_lvl+0x168/0x230
[ 250.313933][ T6311] ? show_regs_print_info+0x20/0x20
[ 250.319136][ T6311] ? load_image+0x3b0/0x3b0
[ 250.323757][ T6311] sysfs_create_dir_ns+0x252/0x280
[ 250.328816][ T6312] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 250.328874][ T6311] ? __lock_acquire+0x7c60/0x7c60
[ 250.341292][ T6311] ? sysfs_warn_dup+0xa0/0xa0
[ 250.346081][ T6311] ? do_raw_spin_unlock+0x11d/0x230
[ 250.351303][ T6311] kobject_add_internal+0x662/0xd00
[ 250.356626][ T6311] kobject_init_and_add+0x122/0x190
[ 250.361832][ T6311] ? lockdep_softirqs_off+0x420/0x420
[ 250.367306][ T6311] ? kobject_add+0x210/0x210
[ 250.371918][ T6311] ? __init_swait_queue_head+0xa5/0x150
[ 250.377480][ T6311] gfs2_sys_fs_add+0x234/0x480
[ 250.382260][ T6311] ? gfs2_recover_set+0x240/0x240
[ 250.387293][ T6311] ? snprintf+0xd7/0x120
[ 250.391926][ T6311] ? __free_pages+0x95/0x1a0
[ 250.396650][ T6311] ? vscnprintf+0x80/0x80
[ 250.401013][ T6311] gfs2_fill_super+0x128d/0x1f50
[ 250.405987][ T6311] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.411254][ T6311] ? preempt_count_add+0x8d/0x190
[ 250.416390][ T6311] ? sb_set_blocksize+0xa5/0xe0
[ 250.421249][ T6311] get_tree_bdev+0x3f1/0x610
[ 250.425839][ T6311] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.430972][ T6311] gfs2_get_tree+0x4d/0x1e0
[ 250.435494][ T6311] vfs_get_tree+0x88/0x270
[ 250.439914][ T6311] do_new_mount+0x24a/0xa40
[ 250.443173][ T6309] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.444509][ T6311] __se_sys_mount+0x2d6/0x3c0
[ 250.462477][ T6311] ? __x64_sys_mount+0xc0/0xc0
[ 250.467247][ T6311] ? lockdep_hardirqs_on+0x94/0x140
[ 250.472451][ T6311] ? __x64_sys_mount+0x1c/0xc0
[ 250.477230][ T6311] do_syscall_64+0x4c/0xa0
[ 250.481650][ T6311] ? clear_bhb_loop+0x30/0x80
[ 250.486330][ T6311] ? clear_bhb_loop+0x30/0x80
[ 250.491022][ T6311] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.496923][ T6311] RIP: 0033:0x7f6deb47c76a
[ 250.501359][ T6311] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 250.516267][ T6309] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.521053][ T6311] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.521076][ T6311] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 250.521090][ T6311] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 250.521103][ T6311] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 250.560803][ T6311] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 250.569043][ T6311] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 250.577036][ T6311]
[ 250.580058][ T6312] CPU: 0 PID: 6312 Comm: syz.3.297 Not tainted syzkaller #0
[ 250.587351][ T6312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 250.597506][ T6312] Call Trace:
[ 250.600778][ T6312]
[ 250.603693][ T6312] dump_stack_lvl+0x168/0x230
[ 250.608362][ T6312] ? show_regs_print_info+0x20/0x20
[ 250.613806][ T6312] ? load_image+0x3b0/0x3b0
[ 250.618297][ T6312] sysfs_create_dir_ns+0x252/0x280
[ 250.623394][ T6312] ? __lock_acquire+0x7c60/0x7c60
[ 250.628404][ T6312] ? sysfs_warn_dup+0xa0/0xa0
[ 250.633071][ T6312] ? do_raw_spin_unlock+0x11d/0x230
[ 250.638252][ T6312] kobject_add_internal+0x662/0xd00
[ 250.643438][ T6312] kobject_init_and_add+0x122/0x190
[ 250.648618][ T6312] ? lockdep_softirqs_off+0x420/0x420
[ 250.653974][ T6312] ? kobject_add+0x210/0x210
[ 250.658690][ T6312] ? __init_swait_queue_head+0xa5/0x150
[ 250.664246][ T6312] gfs2_sys_fs_add+0x234/0x480
[ 250.669054][ T6312] ? gfs2_recover_set+0x240/0x240
[ 250.674069][ T6312] ? snprintf+0xd7/0x120
[ 250.678301][ T6312] ? __free_pages+0x95/0x1a0
[ 250.682877][ T6312] ? vscnprintf+0x80/0x80
[ 250.687205][ T6312] gfs2_fill_super+0x128d/0x1f50
[ 250.692137][ T6312] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.697147][ T6312] ? preempt_count_add+0x8d/0x190
[ 250.702250][ T6312] ? sb_set_blocksize+0xa5/0xe0
[ 250.707085][ T6312] get_tree_bdev+0x3f1/0x610
[ 250.711668][ T6312] ? gfs2_reconfigure+0xcd0/0xcd0
[ 250.716687][ T6312] gfs2_get_tree+0x4d/0x1e0
[ 250.721193][ T6312] vfs_get_tree+0x88/0x270
[ 250.725604][ T6312] do_new_mount+0x24a/0xa40
[ 250.730114][ T6312] __se_sys_mount+0x2d6/0x3c0
[ 250.734869][ T6312] ? __x64_sys_mount+0xc0/0xc0
[ 250.739731][ T6312] ? lockdep_hardirqs_on+0x94/0x140
[ 250.744918][ T6312] ? __x64_sys_mount+0x1c/0xc0
[ 250.749698][ T6312] do_syscall_64+0x4c/0xa0
[ 250.754096][ T6312] ? clear_bhb_loop+0x30/0x80
[ 250.758846][ T6312] ? clear_bhb_loop+0x30/0x80
[ 250.763592][ T6312] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 250.769555][ T6312] RIP: 0033:0x7fe7bdbd476a
[ 250.773963][ T6312] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 250.793667][ T6312] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 250.802067][ T6312] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 250.810118][ T6312] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 250.818072][ T6312] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 250.826111][ T6312] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 250.834060][ T6312] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 250.842111][ T6312]
[ 250.872347][ T6311] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.885862][ T6311] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.894158][ T6312] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 250.907812][ T6312] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 250.911352][ T6314] loop0: detected capacity change from 0 to 32768
[ 251.017011][ T6314] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.061087][ T6314] CPU: 0 PID: 6314 Comm: syz.0.300 Not tainted syzkaller #0
[ 251.068408][ T6314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 251.078586][ T6314] Call Trace:
[ 251.081869][ T6314]
[ 251.084816][ T6314] dump_stack_lvl+0x168/0x230
[ 251.089505][ T6314] ? show_regs_print_info+0x20/0x20
[ 251.094748][ T6314] ? load_image+0x3b0/0x3b0
[ 251.099276][ T6314] sysfs_create_dir_ns+0x252/0x280
[ 251.104455][ T6314] ? __lock_acquire+0x7c60/0x7c60
[ 251.109495][ T6314] ? sysfs_warn_dup+0xa0/0xa0
[ 251.114199][ T6314] ? do_raw_spin_unlock+0x11d/0x230
[ 251.119506][ T6314] kobject_add_internal+0x662/0xd00
[ 251.124821][ T6314] kobject_init_and_add+0x122/0x190
[ 251.130119][ T6314] ? lockdep_softirqs_off+0x420/0x420
[ 251.135627][ T6314] ? kobject_add+0x210/0x210
[ 251.140235][ T6314] ? __init_swait_queue_head+0xa5/0x150
[ 251.145793][ T6314] gfs2_sys_fs_add+0x234/0x480
[ 251.150609][ T6314] ? gfs2_recover_set+0x240/0x240
[ 251.155644][ T6314] ? snprintf+0xd7/0x120
[ 251.159899][ T6314] ? __free_pages+0x95/0x1a0
[ 251.164507][ T6314] ? vscnprintf+0x80/0x80
[ 251.168856][ T6314] gfs2_fill_super+0x128d/0x1f50
[ 251.173814][ T6314] ? gfs2_reconfigure+0xcd0/0xcd0
[ 251.178846][ T6314] ? preempt_count_add+0x8d/0x190
[ 251.183993][ T6314] ? sb_set_blocksize+0xa5/0xe0
[ 251.188855][ T6314] get_tree_bdev+0x3f1/0x610
[ 251.193470][ T6314] ? gfs2_reconfigure+0xcd0/0xcd0
[ 251.198501][ T6314] gfs2_get_tree+0x4d/0x1e0
[ 251.203019][ T6314] vfs_get_tree+0x88/0x270
[ 251.207449][ T6314] do_new_mount+0x24a/0xa40
[ 251.212055][ T6314] __se_sys_mount+0x2d6/0x3c0
[ 251.216928][ T6314] ? __x64_sys_mount+0xc0/0xc0
[ 251.221708][ T6314] ? lockdep_hardirqs_on+0x94/0x140
[ 251.226922][ T6314] ? __x64_sys_mount+0x1c/0xc0
[ 251.231710][ T6314] do_syscall_64+0x4c/0xa0
[ 251.236221][ T6314] ? clear_bhb_loop+0x30/0x80
[ 251.241081][ T6314] ? clear_bhb_loop+0x30/0x80
[ 251.245770][ T6314] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 251.251767][ T6314] RIP: 0033:0x7fd32b6a976a
[ 251.256193][ T6314] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 251.275902][ T6314] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 251.284414][ T6314] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 251.292497][ T6314] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 251.300673][ T6314] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 251.308660][ T6314] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 251.316649][ T6314] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 251.324649][ T6314]
[ 251.657506][ T6314] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 251.691275][ T6314] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 251.827405][ T6316] loop2: detected capacity change from 0 to 32768
[ 251.864386][ T6316] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 251.884090][ T6316] CPU: 0 PID: 6316 Comm: syz.2.301 Not tainted syzkaller #0
[ 251.891505][ T6316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 251.901588][ T6316] Call Trace:
[ 251.904889][ T6316]
[ 251.907830][ T6316] dump_stack_lvl+0x168/0x230
[ 251.912621][ T6316] ? show_regs_print_info+0x20/0x20
[ 251.918090][ T6316] ? load_image+0x3b0/0x3b0
[ 251.922618][ T6316] sysfs_create_dir_ns+0x252/0x280
[ 251.927868][ T6316] ? __lock_acquire+0x7c60/0x7c60
[ 251.932916][ T6316] ? sysfs_warn_dup+0xa0/0xa0
[ 251.937615][ T6316] ? do_raw_spin_unlock+0x11d/0x230
[ 251.942911][ T6316] kobject_add_internal+0x662/0xd00
[ 251.948312][ T6316] kobject_init_and_add+0x122/0x190
[ 251.953539][ T6316] ? lockdep_softirqs_off+0x420/0x420
[ 251.959036][ T6316] ? kobject_add+0x210/0x210
[ 251.963656][ T6316] ? __init_swait_queue_head+0xa5/0x150
[ 251.969220][ T6316] gfs2_sys_fs_add+0x234/0x480
[ 251.973998][ T6316] ? gfs2_recover_set+0x240/0x240
[ 251.979078][ T6316] ? snprintf+0xd7/0x120
[ 251.983594][ T6316] ? __free_pages+0x95/0x1a0
[ 251.988192][ T6316] ? vscnprintf+0x80/0x80
[ 251.992664][ T6316] gfs2_fill_super+0x128d/0x1f50
[ 251.997812][ T6316] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.002852][ T6316] ? preempt_count_add+0x8d/0x190
[ 252.008250][ T6316] ? sb_set_blocksize+0xa5/0xe0
[ 252.013119][ T6316] get_tree_bdev+0x3f1/0x610
[ 252.017719][ T6316] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.023116][ T6316] gfs2_get_tree+0x4d/0x1e0
[ 252.027816][ T6316] vfs_get_tree+0x88/0x270
[ 252.032247][ T6316] do_new_mount+0x24a/0xa40
[ 252.036885][ T6316] __se_sys_mount+0x2d6/0x3c0
[ 252.041585][ T6316] ? __x64_sys_mount+0xc0/0xc0
[ 252.046367][ T6316] ? lockdep_hardirqs_on+0x94/0x140
[ 252.051557][ T6318] loop1: detected capacity change from 0 to 32768
[ 252.051665][ T6316] ? __x64_sys_mount+0x1c/0xc0
[ 252.062995][ T6316] do_syscall_64+0x4c/0xa0
[ 252.067437][ T6316] ? clear_bhb_loop+0x30/0x80
[ 252.072228][ T6316] ? clear_bhb_loop+0x30/0x80
[ 252.077152][ T6316] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.083167][ T6316] RIP: 0033:0x7fbbe852676a
[ 252.087609][ T6316] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 252.107423][ T6316] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.115855][ T6316] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 252.123939][ T6316] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
2025/12/08 15:47:38 executed programs: 298
[ 252.131925][ T6316] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 252.140184][ T6316] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 252.148168][ T6316] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 252.156165][ T6316]
[ 252.225110][ T6318] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.247348][ T6318] CPU: 0 PID: 6318 Comm: syz.1.302 Not tainted syzkaller #0
[ 252.254757][ T6318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 252.264851][ T6318] Call Trace:
[ 252.268142][ T6318]
[ 252.271363][ T6318] dump_stack_lvl+0x168/0x230
[ 252.276152][ T6318] ? show_regs_print_info+0x20/0x20
[ 252.281364][ T6318] ? load_image+0x3b0/0x3b0
[ 252.285889][ T6318] sysfs_create_dir_ns+0x252/0x280
[ 252.291019][ T6318] ? __lock_acquire+0x7c60/0x7c60
[ 252.296079][ T6318] ? sysfs_warn_dup+0xa0/0xa0
[ 252.300794][ T6318] ? do_raw_spin_unlock+0x11d/0x230
[ 252.306024][ T6318] kobject_add_internal+0x662/0xd00
[ 252.311238][ T6318] kobject_init_and_add+0x122/0x190
[ 252.316485][ T6318] ? lockdep_softirqs_off+0x420/0x420
[ 252.321873][ T6318] ? kobject_add+0x210/0x210
[ 252.326500][ T6318] ? __init_swait_queue_head+0xa5/0x150
[ 252.332065][ T6318] gfs2_sys_fs_add+0x234/0x480
[ 252.336857][ T6318] ? gfs2_recover_set+0x240/0x240
[ 252.341910][ T6318] ? snprintf+0xd7/0x120
[ 252.346173][ T6318] ? __free_pages+0x95/0x1a0
[ 252.347414][ T6316] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.350782][ T6318] ? vscnprintf+0x80/0x80
[ 252.368339][ T6318] gfs2_fill_super+0x128d/0x1f50
[ 252.373306][ T6318] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.378355][ T6318] ? preempt_count_add+0x8d/0x190
[ 252.383419][ T6318] ? sb_set_blocksize+0xa5/0xe0
[ 252.388372][ T6318] get_tree_bdev+0x3f1/0x610
[ 252.393012][ T6318] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.398022][ T6316] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.398045][ T6318] gfs2_get_tree+0x4d/0x1e0
[ 252.409203][ T6318] vfs_get_tree+0x88/0x270
[ 252.413824][ T6318] do_new_mount+0x24a/0xa40
[ 252.418355][ T6318] __se_sys_mount+0x2d6/0x3c0
[ 252.423049][ T6318] ? __x64_sys_mount+0xc0/0xc0
[ 252.427824][ T6318] ? lockdep_hardirqs_on+0x94/0x140
[ 252.433025][ T6318] ? __x64_sys_mount+0x1c/0xc0
[ 252.437865][ T6318] do_syscall_64+0x4c/0xa0
[ 252.442268][ T6318] ? clear_bhb_loop+0x30/0x80
[ 252.447107][ T6318] ? clear_bhb_loop+0x30/0x80
[ 252.451768][ T6318] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.457657][ T6318] RIP: 0033:0x7fc1174bd76a
[ 252.462143][ T6318] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 252.481904][ T6318] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.490303][ T6318] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 252.498270][ T6318] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 252.506326][ T6318] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 252.514291][ T6318] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 252.522341][ T6318] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 252.530307][ T6318]
[ 252.572938][ T6321] loop3: detected capacity change from 0 to 32768
[ 252.607398][ T6321] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 252.617439][ T6321] CPU: 1 PID: 6321 Comm: syz.3.304 Not tainted syzkaller #0
[ 252.624751][ T6321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 252.634822][ T6321] Call Trace:
[ 252.638175][ T6321]
[ 252.641286][ T6321] dump_stack_lvl+0x168/0x230
[ 252.645998][ T6321] ? show_regs_print_info+0x20/0x20
[ 252.651218][ T6321] ? load_image+0x3b0/0x3b0
[ 252.655761][ T6321] sysfs_create_dir_ns+0x252/0x280
[ 252.661014][ T6321] ? __lock_acquire+0x7c60/0x7c60
[ 252.666056][ T6321] ? sysfs_warn_dup+0xa0/0xa0
[ 252.670849][ T6321] ? do_raw_spin_unlock+0x11d/0x230
[ 252.676063][ T6321] kobject_add_internal+0x662/0xd00
[ 252.681292][ T6321] kobject_init_and_add+0x122/0x190
[ 252.686509][ T6321] ? lockdep_softirqs_off+0x420/0x420
[ 252.691887][ T6321] ? kobject_add+0x210/0x210
[ 252.696484][ T6321] ? __init_swait_queue_head+0xa5/0x150
[ 252.702046][ T6321] gfs2_sys_fs_add+0x234/0x480
[ 252.706627][ T6322] loop5: detected capacity change from 0 to 32768
[ 252.706839][ T6321] ? gfs2_recover_set+0x240/0x240
[ 252.718271][ T6321] ? snprintf+0xd7/0x120
[ 252.722532][ T6321] ? __free_pages+0x95/0x1a0
[ 252.727231][ T6321] ? vscnprintf+0x80/0x80
[ 252.731588][ T6321] gfs2_fill_super+0x128d/0x1f50
[ 252.736549][ T6321] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.741587][ T6321] ? preempt_count_add+0x8d/0x190
[ 252.746637][ T6321] ? sb_set_blocksize+0xa5/0xe0
[ 252.751508][ T6321] get_tree_bdev+0x3f1/0x610
[ 252.753567][ T6318] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.756099][ T6321] ? gfs2_reconfigure+0xcd0/0xcd0
[ 252.769512][ T6318] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.774364][ T6321] gfs2_get_tree+0x4d/0x1e0
[ 252.785341][ T6321] vfs_get_tree+0x88/0x270
[ 252.789859][ T6321] do_new_mount+0x24a/0xa40
[ 252.794388][ T6321] __se_sys_mount+0x2d6/0x3c0
[ 252.799083][ T6321] ? __x64_sys_mount+0xc0/0xc0
[ 252.803857][ T6321] ? lockdep_hardirqs_on+0x94/0x140
[ 252.809071][ T6321] ? __x64_sys_mount+0x1c/0xc0
[ 252.813853][ T6321] do_syscall_64+0x4c/0xa0
[ 252.818279][ T6321] ? clear_bhb_loop+0x30/0x80
[ 252.822961][ T6321] ? clear_bhb_loop+0x30/0x80
[ 252.827754][ T6321] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 252.833653][ T6321] RIP: 0033:0x7fe7bdbd476a
[ 252.838245][ T6321] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 252.857962][ T6321] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 252.866391][ T6321] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 252.874382][ T6321] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 252.882372][ T6321] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 252.890357][ T6321] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 252.898346][ T6321] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 252.906537][ T6321]
[ 252.912372][ T6321] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 252.926892][ T6321] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 252.954223][ T6322] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.001221][ T6322] CPU: 1 PID: 6322 Comm: syz.5.303 Not tainted syzkaller #0
[ 253.008638][ T6322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 253.018788][ T6322] Call Trace:
[ 253.022071][ T6322]
[ 253.025007][ T6322] dump_stack_lvl+0x168/0x230
[ 253.029697][ T6322] ? show_regs_print_info+0x20/0x20
[ 253.034998][ T6322] ? load_image+0x3b0/0x3b0
[ 253.039598][ T6322] sysfs_create_dir_ns+0x252/0x280
[ 253.044708][ T6322] ? __lock_acquire+0x7c60/0x7c60
[ 253.049742][ T6322] ? sysfs_warn_dup+0xa0/0xa0
[ 253.054432][ T6322] ? do_raw_spin_unlock+0x11d/0x230
[ 253.059725][ T6322] kobject_add_internal+0x662/0xd00
[ 253.065038][ T6322] kobject_init_and_add+0x122/0x190
[ 253.070251][ T6322] ? lockdep_softirqs_off+0x420/0x420
[ 253.075639][ T6322] ? kobject_add+0x210/0x210
[ 253.080240][ T6322] ? __init_swait_queue_head+0xa5/0x150
[ 253.085813][ T6322] gfs2_sys_fs_add+0x234/0x480
[ 253.090666][ T6322] ? gfs2_recover_set+0x240/0x240
[ 253.095695][ T6322] ? snprintf+0xd7/0x120
[ 253.099953][ T6322] ? __free_pages+0x95/0x1a0
[ 253.104553][ T6322] ? vscnprintf+0x80/0x80
[ 253.108899][ T6322] gfs2_fill_super+0x128d/0x1f50
[ 253.113954][ T6322] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.118981][ T6322] ? preempt_count_add+0x8d/0x190
[ 253.124018][ T6322] ? sb_set_blocksize+0xa5/0xe0
[ 253.128968][ T6322] get_tree_bdev+0x3f1/0x610
[ 253.133725][ T6322] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.138850][ T6322] gfs2_get_tree+0x4d/0x1e0
[ 253.143377][ T6322] vfs_get_tree+0x88/0x270
[ 253.147797][ T6322] do_new_mount+0x24a/0xa40
[ 253.152311][ T6322] __se_sys_mount+0x2d6/0x3c0
[ 253.156994][ T6322] ? __x64_sys_mount+0xc0/0xc0
[ 253.161801][ T6322] ? lockdep_hardirqs_on+0x94/0x140
[ 253.167005][ T6322] ? __x64_sys_mount+0x1c/0xc0
[ 253.171770][ T6322] do_syscall_64+0x4c/0xa0
[ 253.176183][ T6322] ? clear_bhb_loop+0x30/0x80
[ 253.180754][ T6324] loop0: detected capacity change from 0 to 32768
[ 253.180854][ T6322] ? clear_bhb_loop+0x30/0x80
[ 253.191995][ T6322] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 253.197890][ T6322] RIP: 0033:0x7f6deb47c76a
[ 253.202304][ T6322] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 253.222111][ T6322] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.230912][ T6322] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 253.238892][ T6322] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 253.247126][ T6322] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 253.255284][ T6322] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 253.263363][ T6322] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 253.271372][ T6322]
[ 253.305307][ T6324] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 253.327419][ T6324] CPU: 1 PID: 6324 Comm: syz.0.305 Not tainted syzkaller #0
[ 253.334828][ T6324] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 253.344978][ T6324] Call Trace:
[ 253.348271][ T6324]
[ 253.351481][ T6324] dump_stack_lvl+0x168/0x230
[ 253.356180][ T6324] ? show_regs_print_info+0x20/0x20
[ 253.361398][ T6324] ? load_image+0x3b0/0x3b0
[ 253.365920][ T6324] sysfs_create_dir_ns+0x252/0x280
[ 253.371043][ T6324] ? __lock_acquire+0x7c60/0x7c60
[ 253.376086][ T6324] ? sysfs_warn_dup+0xa0/0xa0
[ 253.380865][ T6324] ? do_raw_spin_unlock+0x11d/0x230
[ 253.386290][ T6324] kobject_add_internal+0x662/0xd00
[ 253.391581][ T6324] kobject_init_and_add+0x122/0x190
[ 253.393225][ T6322] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.396788][ T6324] ? lockdep_softirqs_off+0x420/0x420
[ 253.415242][ T6324] ? kobject_add+0x210/0x210
[ 253.420009][ T6324] ? __init_swait_queue_head+0xa5/0x150
[ 253.425572][ T6324] gfs2_sys_fs_add+0x234/0x480
[ 253.430352][ T6324] ? gfs2_recover_set+0x240/0x240
[ 253.435479][ T6324] ? snprintf+0xd7/0x120
[ 253.439733][ T6324] ? __free_pages+0x95/0x1a0
[ 253.444336][ T6324] ? vscnprintf+0x80/0x80
[ 253.448693][ T6324] gfs2_fill_super+0x128d/0x1f50
[ 253.453657][ T6324] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.458708][ T6324] ? preempt_count_add+0x8d/0x190
[ 253.463761][ T6322] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 253.463753][ T6324] ? sb_set_blocksize+0xa5/0xe0
[ 253.463784][ T6324] get_tree_bdev+0x3f1/0x610
[ 253.479671][ T6324] ? gfs2_reconfigure+0xcd0/0xcd0
[ 253.484712][ T6324] gfs2_get_tree+0x4d/0x1e0
[ 253.489225][ T6324] vfs_get_tree+0x88/0x270
[ 253.493656][ T6324] do_new_mount+0x24a/0xa40
[ 253.498181][ T6324] __se_sys_mount+0x2d6/0x3c0
[ 253.503047][ T6324] ? __x64_sys_mount+0xc0/0xc0
[ 253.507909][ T6324] ? lockdep_hardirqs_on+0x94/0x140
[ 253.513216][ T6324] ? __x64_sys_mount+0x1c/0xc0
[ 253.518078][ T6324] do_syscall_64+0x4c/0xa0
[ 253.522678][ T6324] ? clear_bhb_loop+0x30/0x80
[ 253.527366][ T6324] ? clear_bhb_loop+0x30/0x80
[ 253.532055][ T6324] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 253.538119][ T6324] RIP: 0033:0x7fd32b6a976a
[ 253.542545][ T6324] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 253.562253][ T6324] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 253.570777][ T6324] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 253.578850][ T6324] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 253.586833][ T6324] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 253.594813][ T6324] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 253.602805][ T6324] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 253.610811][ T6324]
[ 253.934321][ T6324] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 253.993486][ T6324] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.466535][ T6329] loop5: detected capacity change from 0 to 32768
[ 254.479917][ T6327] loop2: detected capacity change from 0 to 32768
[ 254.514923][ T6329] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.520092][ T6327] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 254.537112][ T6329] CPU: 0 PID: 6329 Comm: syz.5.308 Not tainted syzkaller #0
[ 254.544517][ T6329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 254.552904][ T6330] loop1: detected capacity change from 0 to 32768
[ 254.554667][ T6329] Call Trace:
[ 254.554676][ T6329]
[ 254.567296][ T6329] dump_stack_lvl+0x168/0x230
[ 254.571980][ T6329] ? show_regs_print_info+0x20/0x20
[ 254.577375][ T6329] ? load_image+0x3b0/0x3b0
[ 254.581898][ T6329] sysfs_create_dir_ns+0x252/0x280
[ 254.587029][ T6329] ? __lock_acquire+0x7c60/0x7c60
[ 254.592072][ T6329] ? sysfs_warn_dup+0xa0/0xa0
[ 254.596926][ T6329] ? do_raw_spin_unlock+0x11d/0x230
[ 254.602134][ T6329] kobject_add_internal+0x662/0xd00
[ 254.607354][ T6329] kobject_init_and_add+0x122/0x190
[ 254.612650][ T6329] ? lockdep_softirqs_off+0x420/0x420
[ 254.615510][ T6332] loop3: detected capacity change from 0 to 32768
[ 254.618030][ T6329] ? kobject_add+0x210/0x210
[ 254.618055][ T6329] ? __init_swait_queue_head+0xa5/0x150
[ 254.618077][ T6329] gfs2_sys_fs_add+0x234/0x480
[ 254.639328][ T6329] ? gfs2_recover_set+0x240/0x240
[ 254.644727][ T6329] ? snprintf+0xd7/0x120
[ 254.648994][ T6329] ? __free_pages+0x95/0x1a0
[ 254.653597][ T6329] ? vscnprintf+0x80/0x80
[ 254.657958][ T6329] gfs2_fill_super+0x128d/0x1f50
[ 254.662909][ T6329] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.667931][ T6329] ? preempt_count_add+0x8d/0x190
[ 254.672980][ T6329] ? sb_set_blocksize+0xa5/0xe0
[ 254.677933][ T6329] get_tree_bdev+0x3f1/0x610
[ 254.682527][ T6329] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.687560][ T6329] gfs2_get_tree+0x4d/0x1e0
[ 254.692067][ T6329] vfs_get_tree+0x88/0x270
[ 254.696493][ T6329] do_new_mount+0x24a/0xa40
[ 254.701015][ T6329] __se_sys_mount+0x2d6/0x3c0
[ 254.705794][ T6329] ? __x64_sys_mount+0xc0/0xc0
[ 254.710570][ T6329] ? lockdep_hardirqs_on+0x94/0x140
[ 254.715773][ T6329] ? __x64_sys_mount+0x1c/0xc0
[ 254.720533][ T6329] do_syscall_64+0x4c/0xa0
[ 254.724949][ T6329] ? clear_bhb_loop+0x30/0x80
[ 254.729620][ T6329] ? clear_bhb_loop+0x30/0x80
[ 254.734386][ T6329] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 254.740291][ T6329] RIP: 0033:0x7f6deb47c76a
[ 254.744704][ T6329] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 254.764400][ T6329] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 254.772964][ T6329] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 254.780946][ T6329] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 254.789018][ T6329] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 254.797080][ T6329] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 254.805068][ T6329] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 254.813151][ T6329]
[ 254.821371][ T6329] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 254.826793][ T6327] CPU: 1 PID: 6327 Comm: syz.2.306 Not tainted syzkaller #0
[ 254.841767][ T6327] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 254.851840][ T6327] Call Trace:
[ 254.855212][ T6327]
[ 254.855876][ T6329] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 254.858141][ T6327] dump_stack_lvl+0x168/0x230
[ 254.858170][ T6327] ? show_regs_print_info+0x20/0x20
[ 254.858187][ T6327] ? load_image+0x3b0/0x3b0
[ 254.879002][ T6327] sysfs_create_dir_ns+0x252/0x280
[ 254.884304][ T6327] ? __lock_acquire+0x7c60/0x7c60
[ 254.889336][ T6327] ? sysfs_warn_dup+0xa0/0xa0
[ 254.894024][ T6327] ? do_raw_spin_unlock+0x11d/0x230
[ 254.899233][ T6327] kobject_add_internal+0x662/0xd00
[ 254.904444][ T6327] kobject_init_and_add+0x122/0x190
[ 254.909655][ T6327] ? lockdep_softirqs_off+0x420/0x420
[ 254.915046][ T6327] ? kobject_add+0x210/0x210
[ 254.919654][ T6327] ? __init_swait_queue_head+0xa5/0x150
[ 254.925305][ T6327] gfs2_sys_fs_add+0x234/0x480
[ 254.930084][ T6327] ? gfs2_recover_set+0x240/0x240
[ 254.935116][ T6327] ? snprintf+0xd7/0x120
[ 254.939371][ T6327] ? __free_pages+0x95/0x1a0
[ 254.944320][ T6327] ? vscnprintf+0x80/0x80
[ 254.948748][ T6327] gfs2_fill_super+0x128d/0x1f50
[ 254.953707][ T6327] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.958744][ T6327] ? preempt_count_add+0x8d/0x190
[ 254.963792][ T6327] ? sb_set_blocksize+0xa5/0xe0
[ 254.968744][ T6327] get_tree_bdev+0x3f1/0x610
[ 254.973348][ T6327] ? gfs2_reconfigure+0xcd0/0xcd0
[ 254.978397][ T6327] gfs2_get_tree+0x4d/0x1e0
[ 254.982930][ T6327] vfs_get_tree+0x88/0x270
[ 254.987362][ T6327] do_new_mount+0x24a/0xa40
[ 254.991885][ T6327] __se_sys_mount+0x2d6/0x3c0
[ 254.996888][ T6327] ? __x64_sys_mount+0xc0/0xc0
[ 255.001729][ T6327] ? lockdep_hardirqs_on+0x94/0x140
[ 255.007120][ T6327] ? __x64_sys_mount+0x1c/0xc0
[ 255.011989][ T6327] do_syscall_64+0x4c/0xa0
[ 255.016424][ T6327] ? clear_bhb_loop+0x30/0x80
[ 255.021216][ T6327] ? clear_bhb_loop+0x30/0x80
[ 255.026086][ T6327] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.031994][ T6327] RIP: 0033:0x7fbbe852676a
[ 255.036424][ T6327] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 255.056387][ T6327] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.064826][ T6327] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 255.073010][ T6327] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 255.081286][ T6327] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 255.089376][ T6327] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 255.097360][ T6327] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 255.100740][ T6334] loop0: detected capacity change from 0 to 32768
[ 255.105433][ T6327]
[ 255.112334][ T6327] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 255.128966][ T6327] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 255.173815][ T6332] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.181502][ T6330] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.184003][ T6334] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 255.209387][ T6330] CPU: 1 PID: 6330 Comm: syz.1.307 Not tainted syzkaller #0
[ 255.216881][ T6330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 255.227027][ T6330] Call Trace:
[ 255.230419][ T6330]
[ 255.233370][ T6330] dump_stack_lvl+0x168/0x230
[ 255.238046][ T6330] ? show_regs_print_info+0x20/0x20
[ 255.243252][ T6330] ? load_image+0x3b0/0x3b0
[ 255.247761][ T6330] sysfs_create_dir_ns+0x252/0x280
[ 255.253101][ T6330] ? __lock_acquire+0x7c60/0x7c60
[ 255.258118][ T6330] ? sysfs_warn_dup+0xa0/0xa0
[ 255.262804][ T6330] ? do_raw_spin_unlock+0x11d/0x230
[ 255.268103][ T6330] kobject_add_internal+0x662/0xd00
[ 255.273318][ T6330] kobject_init_and_add+0x122/0x190
[ 255.278967][ T6330] ? lockdep_softirqs_off+0x420/0x420
[ 255.284340][ T6330] ? kobject_add+0x210/0x210
[ 255.288929][ T6330] ? __init_swait_queue_head+0xa5/0x150
[ 255.294492][ T6330] gfs2_sys_fs_add+0x234/0x480
[ 255.299283][ T6330] ? gfs2_recover_set+0x240/0x240
[ 255.304305][ T6330] ? snprintf+0xd7/0x120
[ 255.308545][ T6330] ? __free_pages+0x95/0x1a0
[ 255.313132][ T6330] ? vscnprintf+0x80/0x80
[ 255.317471][ T6330] gfs2_fill_super+0x128d/0x1f50
[ 255.322428][ T6330] ? gfs2_reconfigure+0xcd0/0xcd0
[ 255.327460][ T6330] ? preempt_count_add+0x8d/0x190
[ 255.332501][ T6330] ? sb_set_blocksize+0xa5/0xe0
[ 255.337472][ T6330] get_tree_bdev+0x3f1/0x610
[ 255.342068][ T6330] ? gfs2_reconfigure+0xcd0/0xcd0
[ 255.347102][ T6330] gfs2_get_tree+0x4d/0x1e0
[ 255.351708][ T6330] vfs_get_tree+0x88/0x270
[ 255.356291][ T6330] do_new_mount+0x24a/0xa40
[ 255.360791][ T6330] __se_sys_mount+0x2d6/0x3c0
[ 255.365466][ T6330] ? __x64_sys_mount+0xc0/0xc0
[ 255.370236][ T6330] ? lockdep_hardirqs_on+0x94/0x140
[ 255.375610][ T6330] ? __x64_sys_mount+0x1c/0xc0
[ 255.380472][ T6330] do_syscall_64+0x4c/0xa0
[ 255.384911][ T6330] ? clear_bhb_loop+0x30/0x80
[ 255.389594][ T6330] ? clear_bhb_loop+0x30/0x80
[ 255.394278][ T6330] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.400189][ T6330] RIP: 0033:0x7fc1174bd76a
[ 255.404627][ T6330] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 255.424423][ T6330] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.433101][ T6330] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 255.441162][ T6330] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 255.449151][ T6330] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 255.457140][ T6330] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 255.465137][ T6330] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 255.473134][ T6330]
[ 255.477159][ T6334] CPU: 1 PID: 6334 Comm: syz.0.310 Not tainted syzkaller #0
[ 255.484559][ T6334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 255.494626][ T6334] Call Trace:
[ 255.498000][ T6334]
[ 255.500946][ T6334] dump_stack_lvl+0x168/0x230
[ 255.505629][ T6334] ? show_regs_print_info+0x20/0x20
[ 255.510940][ T6334] ? load_image+0x3b0/0x3b0
[ 255.515608][ T6334] sysfs_create_dir_ns+0x252/0x280
[ 255.520835][ T6334] ? __lock_acquire+0x7c60/0x7c60
[ 255.525971][ T6334] ? sysfs_warn_dup+0xa0/0xa0
[ 255.530684][ T6334] ? do_raw_spin_unlock+0x11d/0x230
[ 255.535988][ T6334] kobject_add_internal+0x662/0xd00
[ 255.541296][ T6334] kobject_init_and_add+0x122/0x190
[ 255.546529][ T6334] ? lockdep_softirqs_off+0x420/0x420
[ 255.551921][ T6334] ? kobject_add+0x210/0x210
[ 255.556534][ T6334] ? __init_swait_queue_head+0xa5/0x150
[ 255.562193][ T6334] gfs2_sys_fs_add+0x234/0x480
[ 255.566965][ T6334] ? gfs2_recover_set+0x240/0x240
[ 255.572002][ T6334] ? snprintf+0xd7/0x120
[ 255.576371][ T6334] ? __free_pages+0x95/0x1a0
[ 255.580988][ T6334] ? vscnprintf+0x80/0x80
[ 255.585344][ T6334] gfs2_fill_super+0x128d/0x1f50
[ 255.590384][ T6334] ? gfs2_reconfigure+0xcd0/0xcd0
[ 255.595410][ T6334] ? preempt_count_add+0x8d/0x190
[ 255.600453][ T6334] ? sb_set_blocksize+0xa5/0xe0
[ 255.605331][ T6334] get_tree_bdev+0x3f1/0x610
[ 255.609938][ T6334] ? gfs2_reconfigure+0xcd0/0xcd0
[ 255.615082][ T6334] gfs2_get_tree+0x4d/0x1e0
[ 255.619608][ T6334] vfs_get_tree+0x88/0x270
[ 255.623126][ T1419] ieee802154 phy0 wpan0: encryption failed: -22
[ 255.624032][ T6334] do_new_mount+0x24a/0xa40
[ 255.635009][ T6334] __se_sys_mount+0x2d6/0x3c0
[ 255.636756][ T1419] ieee802154 phy1 wpan1: encryption failed: -22
[ 255.639693][ T6334] ? __x64_sys_mount+0xc0/0xc0
[ 255.639717][ T6334] ? lockdep_hardirqs_on+0x94/0x140
[ 255.639736][ T6334] ? __x64_sys_mount+0x1c/0xc0
[ 255.660620][ T6334] do_syscall_64+0x4c/0xa0
[ 255.665044][ T6334] ? clear_bhb_loop+0x30/0x80
[ 255.669715][ T6334] ? clear_bhb_loop+0x30/0x80
[ 255.674398][ T6334] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.680312][ T6334] RIP: 0033:0x7fd32b6a976a
[ 255.684743][ T6334] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 255.704531][ T6334] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 255.712960][ T6334] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 255.721031][ T6334] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 255.729115][ T6334] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 255.737098][ T6334] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 255.745190][ T6334] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 255.753201][ T6334]
[ 255.786339][ T6332] CPU: 0 PID: 6332 Comm: syz.3.309 Not tainted syzkaller #0
[ 255.793660][ T6332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 255.803724][ T6332] Call Trace:
[ 255.807270][ T6332]
[ 255.810200][ T6332] dump_stack_lvl+0x168/0x230
[ 255.814882][ T6332] ? show_regs_print_info+0x20/0x20
[ 255.820081][ T6332] ? load_image+0x3b0/0x3b0
[ 255.824602][ T6332] sysfs_create_dir_ns+0x252/0x280
[ 255.829731][ T6332] ? __lock_acquire+0x7c60/0x7c60
[ 255.834857][ T6332] ? sysfs_warn_dup+0xa0/0xa0
[ 255.839548][ T6332] ? do_raw_spin_unlock+0x11d/0x230
[ 255.844762][ T6332] kobject_add_internal+0x662/0xd00
[ 255.849977][ T6332] kobject_init_and_add+0x122/0x190
[ 255.855180][ T6332] ? lockdep_softirqs_off+0x420/0x420
[ 255.860570][ T6332] ? kobject_add+0x210/0x210
[ 255.865169][ T6332] ? __init_swait_queue_head+0xa5/0x150
[ 255.870761][ T6332] gfs2_sys_fs_add+0x234/0x480
[ 255.875541][ T6332] ? gfs2_recover_set+0x240/0x240
[ 255.880585][ T6332] ? snprintf+0xd7/0x120
[ 255.884838][ T6332] ? __free_pages+0x95/0x1a0
[ 255.889457][ T6332] ? vscnprintf+0x80/0x80
[ 255.893804][ T6332] gfs2_fill_super+0x128d/0x1f50
[ 255.899007][ T6332] ? gfs2_reconfigure+0xcd0/0xcd0
[ 255.904052][ T6332] ? preempt_count_add+0x8d/0x190
[ 255.909131][ T6332] ? sb_set_blocksize+0xa5/0xe0
[ 255.914091][ T6332] get_tree_bdev+0x3f1/0x610
[ 255.918702][ T6332] ? gfs2_reconfigure+0xcd0/0xcd0
[ 255.923748][ T6332] gfs2_get_tree+0x4d/0x1e0
[ 255.928342][ T6332] vfs_get_tree+0x88/0x270
[ 255.932772][ T6332] do_new_mount+0x24a/0xa40
[ 255.937381][ T6332] __se_sys_mount+0x2d6/0x3c0
[ 255.942187][ T6332] ? __x64_sys_mount+0xc0/0xc0
[ 255.946973][ T6332] ? lockdep_hardirqs_on+0x94/0x140
[ 255.952195][ T6332] ? __x64_sys_mount+0x1c/0xc0
[ 255.956978][ T6332] do_syscall_64+0x4c/0xa0
[ 255.961406][ T6332] ? clear_bhb_loop+0x30/0x80
[ 255.966104][ T6332] ? clear_bhb_loop+0x30/0x80
[ 255.970791][ T6332] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 255.976694][ T6332] RIP: 0033:0x7fe7bdbd476a
[ 255.981209][ T6332] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 256.001047][ T6332] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.009557][ T6332] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 256.017548][ T6332] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 256.025615][ T6332] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 256.033598][ T6332] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 256.041677][ T6332] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 256.049672][ T6332]
[ 256.107582][ T6330] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.131312][ T6330] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.242103][ T6336] loop5: detected capacity change from 0 to 32768
[ 256.297412][ T6332] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.310818][ T6336] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.326768][ T6336] CPU: 1 PID: 6336 Comm: syz.5.311 Not tainted syzkaller #0
[ 256.334090][ T6336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 256.344150][ T6336] Call Trace:
[ 256.347431][ T6336]
[ 256.350405][ T6336] dump_stack_lvl+0x168/0x230
[ 256.355226][ T6336] ? show_regs_print_info+0x20/0x20
[ 256.360712][ T6336] ? load_image+0x3b0/0x3b0
[ 256.365332][ T6336] sysfs_create_dir_ns+0x252/0x280
[ 256.370466][ T6336] ? __lock_acquire+0x7c60/0x7c60
[ 256.375514][ T6336] ? sysfs_warn_dup+0xa0/0xa0
[ 256.380213][ T6336] ? do_raw_spin_unlock+0x11d/0x230
[ 256.385431][ T6336] kobject_add_internal+0x662/0xd00
[ 256.390655][ T6336] kobject_init_and_add+0x122/0x190
[ 256.395857][ T6336] ? lockdep_softirqs_off+0x420/0x420
[ 256.401239][ T6336] ? kobject_add+0x210/0x210
[ 256.405843][ T6336] ? __init_swait_queue_head+0xa5/0x150
[ 256.411410][ T6336] gfs2_sys_fs_add+0x234/0x480
[ 256.416184][ T6336] ? gfs2_recover_set+0x240/0x240
[ 256.421314][ T6336] ? snprintf+0xd7/0x120
[ 256.425578][ T6336] ? __free_pages+0x95/0x1a0
[ 256.430272][ T6336] ? vscnprintf+0x80/0x80
[ 256.434625][ T6336] gfs2_fill_super+0x128d/0x1f50
[ 256.439593][ T6336] ? gfs2_reconfigure+0xcd0/0xcd0
[ 256.444635][ T6336] ? preempt_count_add+0x8d/0x190
[ 256.449678][ T6336] ? sb_set_blocksize+0xa5/0xe0
[ 256.454558][ T6336] get_tree_bdev+0x3f1/0x610
[ 256.459170][ T6336] ? gfs2_reconfigure+0xcd0/0xcd0
[ 256.464207][ T6336] gfs2_get_tree+0x4d/0x1e0
[ 256.468746][ T6336] vfs_get_tree+0x88/0x270
[ 256.473180][ T6336] do_new_mount+0x24a/0xa40
[ 256.477720][ T6336] __se_sys_mount+0x2d6/0x3c0
[ 256.482509][ T6336] ? __x64_sys_mount+0xc0/0xc0
[ 256.483328][ T6334] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.487268][ T6336] ? lockdep_hardirqs_on+0x94/0x140
[ 256.487290][ T6336] ? __x64_sys_mount+0x1c/0xc0
[ 256.487309][ T6336] do_syscall_64+0x4c/0xa0
[ 256.515063][ T6336] ? clear_bhb_loop+0x30/0x80
[ 256.517368][ T6334] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.519751][ T6336] ? clear_bhb_loop+0x30/0x80
[ 256.531003][ T6336] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 256.536920][ T6336] RIP: 0033:0x7f6deb47c76a
[ 256.541335][ T6336] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 256.561031][ T6336] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 256.569491][ T6336] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 256.577477][ T6336] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 256.585456][ T6336] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 256.593443][ T6336] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 256.601614][ T6336] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 256.609615][ T6336]
[ 256.658613][ T6332] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 256.837011][ T6338] loop2: detected capacity change from 0 to 32768
[ 256.862980][ T6336] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 256.972578][ T6338] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 256.987378][ T6338] CPU: 1 PID: 6338 Comm: syz.2.312 Not tainted syzkaller #0
[ 256.994700][ T6338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 257.004764][ T6338] Call Trace:
[ 257.008043][ T6338]
[ 257.010972][ T6338] dump_stack_lvl+0x168/0x230
[ 257.015746][ T6338] ? show_regs_print_info+0x20/0x20
[ 257.020957][ T6338] ? load_image+0x3b0/0x3b0
[ 257.025511][ T6338] sysfs_create_dir_ns+0x252/0x280
[ 257.030638][ T6338] ? __lock_acquire+0x7c60/0x7c60
[ 257.035668][ T6338] ? sysfs_warn_dup+0xa0/0xa0
[ 257.040367][ T6338] ? do_raw_spin_unlock+0x11d/0x230
[ 257.045580][ T6338] kobject_add_internal+0x662/0xd00
[ 257.050793][ T6338] kobject_init_and_add+0x122/0x190
[ 257.056121][ T6338] ? lockdep_softirqs_off+0x420/0x420
[ 257.061509][ T6338] ? kobject_add+0x210/0x210
[ 257.066114][ T6338] ? __init_swait_queue_head+0xa5/0x150
[ 257.071680][ T6338] gfs2_sys_fs_add+0x234/0x480
[ 257.076455][ T6338] ? gfs2_recover_set+0x240/0x240
[ 257.081487][ T6338] ? snprintf+0xd7/0x120
[ 257.085744][ T6338] ? __free_pages+0x95/0x1a0
[ 257.090344][ T6338] ? vscnprintf+0x80/0x80
[ 257.094689][ T6338] gfs2_fill_super+0x128d/0x1f50
[ 257.099645][ T6338] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.104942][ T6338] ? preempt_count_add+0x8d/0x190
[ 257.109982][ T6338] ? sb_set_blocksize+0xa5/0xe0
[ 257.114937][ T6338] get_tree_bdev+0x3f1/0x610
[ 257.119543][ T6338] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.124571][ T6338] gfs2_get_tree+0x4d/0x1e0
[ 257.129122][ T6338] vfs_get_tree+0x88/0x270
[ 257.133548][ T6338] do_new_mount+0x24a/0xa40
[ 257.138069][ T6338] __se_sys_mount+0x2d6/0x3c0
[ 257.142755][ T6338] ? __x64_sys_mount+0xc0/0xc0
[ 257.147622][ T6338] ? lockdep_hardirqs_on+0x94/0x140
[ 257.152825][ T6338] ? __x64_sys_mount+0x1c/0xc0
[ 257.157596][ T6338] do_syscall_64+0x4c/0xa0
[ 257.162060][ T6338] ? clear_bhb_loop+0x30/0x80
[ 257.166741][ T6338] ? clear_bhb_loop+0x30/0x80
[ 257.171429][ T6338] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.177329][ T6338] RIP: 0033:0x7fbbe852676a
[ 257.181748][ T6338] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 257.201414][ T6338] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.209845][ T6338] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 257.217921][ T6338] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 257.225904][ T6338] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 257.233887][ T6338] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 257.241874][ T6338] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 257.249977][ T6338]
[ 257.307393][ T6336] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.318314][ T6340] loop1: detected capacity change from 0 to 32768
[ 257.345787][ T6340] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.363400][ T6340] CPU: 1 PID: 6340 Comm: syz.1.313 Not tainted syzkaller #0
[ 257.370722][ T6340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 257.380794][ T6340] Call Trace:
[ 257.384078][ T6340]
[ 257.387013][ T6340] dump_stack_lvl+0x168/0x230
[ 257.391718][ T6340] ? show_regs_print_info+0x20/0x20
[ 257.396929][ T6340] ? load_image+0x3b0/0x3b0
[ 257.401462][ T6340] sysfs_create_dir_ns+0x252/0x280
[ 257.406595][ T6340] ? __lock_acquire+0x7c60/0x7c60
[ 257.411638][ T6340] ? sysfs_warn_dup+0xa0/0xa0
[ 257.416339][ T6340] ? do_raw_spin_unlock+0x11d/0x230
[ 257.421551][ T6340] kobject_add_internal+0x662/0xd00
[ 257.426770][ T6340] kobject_init_and_add+0x122/0x190
[ 257.432073][ T6340] ? lockdep_softirqs_off+0x420/0x420
[ 257.437466][ T6340] ? kobject_add+0x210/0x210
[ 257.442077][ T6340] ? __init_swait_queue_head+0xa5/0x150
[ 257.447638][ T6340] gfs2_sys_fs_add+0x234/0x480
[ 257.452415][ T6340] ? gfs2_recover_set+0x240/0x240
[ 257.457448][ T6340] ? snprintf+0xd7/0x120
[ 257.461699][ T6340] ? __free_pages+0x95/0x1a0
[ 257.466840][ T6340] ? vscnprintf+0x80/0x80
[ 257.471212][ T6340] gfs2_fill_super+0x128d/0x1f50
[ 257.476353][ T6340] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.481406][ T6340] ? preempt_count_add+0x8d/0x190
[ 257.486549][ T6340] ? sb_set_blocksize+0xa5/0xe0
[ 257.491441][ T6340] get_tree_bdev+0x3f1/0x610
[ 257.496049][ T6340] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.501086][ T6340] gfs2_get_tree+0x4d/0x1e0
[ 257.505614][ T6340] vfs_get_tree+0x88/0x270
[ 257.510038][ T6340] do_new_mount+0x24a/0xa40
[ 257.514648][ T6340] __se_sys_mount+0x2d6/0x3c0
[ 257.519334][ T6340] ? __x64_sys_mount+0xc0/0xc0
[ 257.524216][ T6340] ? lockdep_hardirqs_on+0x94/0x140
[ 257.529422][ T6340] ? __x64_sys_mount+0x1c/0xc0
[ 257.534287][ T6340] do_syscall_64+0x4c/0xa0
[ 257.538706][ T6340] ? clear_bhb_loop+0x30/0x80
[ 257.543502][ T6340] ? clear_bhb_loop+0x30/0x80
[ 257.548197][ T6340] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.554185][ T6340] RIP: 0033:0x7fc1174bd76a
[ 257.558687][ T6340] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 257.578296][ T6340] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.586717][ T6340] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 257.591782][ T6342] loop3: detected capacity change from 0 to 32768
[ 257.594685][ T6340] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 257.594700][ T6340] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 257.594711][ T6340] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 257.594722][ T6340] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 257.594744][ T6340]
[ 257.614522][ T6342] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 257.645561][ T6338] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.679350][ T6342] CPU: 1 PID: 6342 Comm: syz.3.314 Not tainted syzkaller #0
[ 257.686674][ T6342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 257.696738][ T6342] Call Trace:
[ 257.698627][ T6338] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.700017][ T6342]
[ 257.708156][ T6340] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.709412][ T6342] dump_stack_lvl+0x168/0x230
[ 257.709439][ T6342] ? show_regs_print_info+0x20/0x20
[ 257.722603][ T6340] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 257.727164][ T6342] ? load_image+0x3b0/0x3b0
[ 257.727193][ T6342] sysfs_create_dir_ns+0x252/0x280
[ 257.727213][ T6342] ? __lock_acquire+0x7c60/0x7c60
[ 257.727232][ T6342] ? sysfs_warn_dup+0xa0/0xa0
[ 257.727254][ T6342] ? do_raw_spin_unlock+0x11d/0x230
[ 257.727275][ T6342] kobject_add_internal+0x662/0xd00
[ 257.727301][ T6342] kobject_init_and_add+0x122/0x190
[ 257.727317][ T6342] ? lockdep_softirqs_off+0x420/0x420
[ 257.727340][ T6342] ? kobject_add+0x210/0x210
[ 257.727362][ T6342] ? __init_swait_queue_head+0xa5/0x150
[ 257.727387][ T6342] gfs2_sys_fs_add+0x234/0x480
[ 257.727408][ T6342] ? gfs2_recover_set+0x240/0x240
[ 257.727425][ T6342] ? snprintf+0xd7/0x120
[ 257.727444][ T6342] ? __free_pages+0x95/0x1a0
[ 257.727465][ T6342] ? vscnprintf+0x80/0x80
[ 257.727495][ T6342] gfs2_fill_super+0x128d/0x1f50
[ 257.727527][ T6342] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.727549][ T6342] ? preempt_count_add+0x8d/0x190
[ 257.727579][ T6342] ? sb_set_blocksize+0xa5/0xe0
[ 257.727602][ T6342] get_tree_bdev+0x3f1/0x610
[ 257.727622][ T6342] ? gfs2_reconfigure+0xcd0/0xcd0
[ 257.727642][ T6342] gfs2_get_tree+0x4d/0x1e0
[ 257.727662][ T6342] vfs_get_tree+0x88/0x270
[ 257.727682][ T6342] do_new_mount+0x24a/0xa40
[ 257.727707][ T6342] __se_sys_mount+0x2d6/0x3c0
[ 257.727726][ T6342] ? __x64_sys_mount+0xc0/0xc0
[ 257.727744][ T6342] ? lockdep_hardirqs_on+0x94/0x140
[ 257.727763][ T6342] ? __x64_sys_mount+0x1c/0xc0
[ 257.727782][ T6342] do_syscall_64+0x4c/0xa0
[ 257.727799][ T6342] ? clear_bhb_loop+0x30/0x80
[ 257.727817][ T6342] ? clear_bhb_loop+0x30/0x80
[ 257.727835][ T6342] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 257.727853][ T6342] RIP: 0033:0x7fe7bdbd476a
[ 257.899399][ T6342] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 257.919011][ T6342] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 257.927436][ T6342] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 257.935414][ T6342] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 257.943483][ T6342] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 257.951484][ T6342] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 257.959465][ T6342] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 257.967558][ T6342]
2025/12/08 15:47:44 executed programs: 309
[ 257.973930][ T6342] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 257.987969][ T6342] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.227464][ T6344] loop0: detected capacity change from 0 to 32768
[ 258.267700][ T6344] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 258.275190][ T6344] CPU: 0 PID: 6344 Comm: syz.0.315 Not tainted syzkaller #0
[ 258.282567][ T6344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 258.292631][ T6344] Call Trace:
[ 258.295919][ T6344]
[ 258.298859][ T6344] dump_stack_lvl+0x168/0x230
[ 258.303550][ T6344] ? show_regs_print_info+0x20/0x20
[ 258.308772][ T6344] ? load_image+0x3b0/0x3b0
[ 258.313382][ T6344] sysfs_create_dir_ns+0x252/0x280
[ 258.318511][ T6344] ? __lock_acquire+0x7c60/0x7c60
[ 258.323591][ T6344] ? sysfs_warn_dup+0xa0/0xa0
[ 258.328289][ T6344] ? do_raw_spin_unlock+0x11d/0x230
[ 258.333500][ T6344] kobject_add_internal+0x662/0xd00
[ 258.338710][ T6344] kobject_init_and_add+0x122/0x190
[ 258.343921][ T6344] ? lockdep_softirqs_off+0x420/0x420
[ 258.349321][ T6344] ? kobject_add+0x210/0x210
[ 258.353927][ T6344] ? __init_swait_queue_head+0xa5/0x150
[ 258.359492][ T6344] gfs2_sys_fs_add+0x234/0x480
[ 258.364617][ T6344] ? gfs2_recover_set+0x240/0x240
[ 258.369740][ T6344] ? snprintf+0xd7/0x120
[ 258.374000][ T6344] ? __free_pages+0x95/0x1a0
[ 258.378608][ T6344] ? vscnprintf+0x80/0x80
[ 258.382970][ T6344] gfs2_fill_super+0x128d/0x1f50
[ 258.387949][ T6344] ? gfs2_reconfigure+0xcd0/0xcd0
[ 258.392990][ T6344] ? preempt_count_add+0x8d/0x190
[ 258.398184][ T6344] ? sb_set_blocksize+0xa5/0xe0
[ 258.403088][ T6344] get_tree_bdev+0x3f1/0x610
[ 258.407699][ T6344] ? gfs2_reconfigure+0xcd0/0xcd0
[ 258.412742][ T6344] gfs2_get_tree+0x4d/0x1e0
[ 258.417348][ T6344] vfs_get_tree+0x88/0x270
[ 258.421867][ T6344] do_new_mount+0x24a/0xa40
[ 258.426382][ T6344] __se_sys_mount+0x2d6/0x3c0
[ 258.431066][ T6344] ? __x64_sys_mount+0xc0/0xc0
[ 258.435839][ T6344] ? lockdep_hardirqs_on+0x94/0x140
[ 258.441051][ T6344] ? __x64_sys_mount+0x1c/0xc0
[ 258.445824][ T6344] do_syscall_64+0x4c/0xa0
[ 258.450249][ T6344] ? clear_bhb_loop+0x30/0x80
[ 258.454934][ T6344] ? clear_bhb_loop+0x30/0x80
[ 258.459618][ T6344] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 258.465527][ T6344] RIP: 0033:0x7fd32b6a976a
[ 258.469949][ T6344] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 258.489557][ T6344] RSP: 002b:00007fd32ad16e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 258.497995][ T6344] RAX: ffffffffffffffda RBX: 00007fd32ad16ef0 RCX: 00007fd32b6a976a
[ 258.506242][ T6344] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fd32ad16eb0
[ 258.514330][ T6344] RBP: 0000200000021140 R08: 00007fd32ad16ef0 R09: 0000000000008000
[ 258.522412][ T6344] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 258.530394][ T6344] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 258.538393][ T6344]
[ 258.807510][ T27] INFO: task kworker/0:0:7 blocked for more than 143 seconds.
[ 258.815348][ T27] Not tainted syzkaller #0
[ 258.853980][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 258.894013][ T27] task:kworker/0:0 state:D stack:24936 pid: 7 ppid: 2 flags:0x00004000
[ 258.897485][ T6344] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 258.927298][ T27] Workqueue: gfs_recovery gfs2_recover_func
[ 258.933341][ T27] Call Trace:
[ 258.936623][ T27]
[ 258.947210][ T6344] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 258.967417][ T27] __schedule+0x11bb/0x4390
[ 258.972066][ T27] ? mark_lock+0x94/0x320
[ 258.976411][ T27] ? release_firmware_map_entry+0x190/0x190
[ 259.006352][ T6348] loop3: detected capacity change from 0 to 32768
[ 259.025027][ T27] ? _raw_spin_unlock_irq+0x1f/0x40
[ 259.038947][ T6348] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.047515][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 259.052813][ T27] schedule+0x11b/0x1e0
[ 259.056988][ T27] io_schedule+0x7c/0xd0
[ 259.063171][ T6348] CPU: 1 PID: 6348 Comm: syz.3.317 Not tainted syzkaller #0
[ 259.070563][ T6348] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 259.077132][ T6346] loop5: detected capacity change from 0 to 32768
[ 259.080791][ T6348] Call Trace:
[ 259.080799][ T6348]
[ 259.080806][ T6348] dump_stack_lvl+0x168/0x230
[ 259.080830][ T6348] ? show_regs_print_info+0x20/0x20
[ 259.097356][ T27] wait_on_page_bit_common+0x815/0xe00
[ 259.098069][ T6348] ? load_image+0x3b0/0x3b0
[ 259.103265][ T27] ? wait_on_page_bit+0x50/0x50
[ 259.108690][ T6348] sysfs_create_dir_ns+0x252/0x280
[ 259.108712][ T6348] ? __lock_acquire+0x7c60/0x7c60
[ 259.108730][ T6348] ? sysfs_warn_dup+0xa0/0xa0
[ 259.108750][ T6348] ? do_raw_spin_unlock+0x11d/0x230
[ 259.108770][ T6348] kobject_add_internal+0x662/0xd00
[ 259.108793][ T6348] kobject_init_and_add+0x122/0x190
[ 259.108809][ T6348] ? lockdep_softirqs_off+0x420/0x420
[ 259.108833][ T6348] ? kobject_add+0x210/0x210
[ 259.108855][ T6348] ? __init_swait_queue_head+0xa5/0x150
[ 259.108876][ T6348] gfs2_sys_fs_add+0x234/0x480
[ 259.108897][ T6348] ? gfs2_recover_set+0x240/0x240
[ 259.108915][ T6348] ? snprintf+0xd7/0x120
[ 259.108934][ T6348] ? __free_pages+0x95/0x1a0
[ 259.108953][ T6348] ? vscnprintf+0x80/0x80
[ 259.127322][ T27] ? rcu_lock_release+0x20/0x20
[ 259.128367][ T6348] gfs2_fill_super+0x128d/0x1f50
[ 259.133122][ T27] ? blk_put_request+0x20/0x20
[ 259.138301][ T6348] ? gfs2_reconfigure+0xcd0/0xcd0
[ 259.138322][ T6348] ? preempt_count_add+0x8d/0x190
[ 259.138351][ T6348] ? sb_set_blocksize+0xa5/0xe0
[ 259.157505][ T27] ? __get_log_header+0x1c0/0x4f0
[ 259.158879][ T6348] get_tree_bdev+0x3f1/0x610
[ 259.177321][ T27] gfs2_jhead_process_page+0x24e/0xbc0
[ 259.178462][ T6348] ? gfs2_reconfigure+0xcd0/0xcd0
[ 259.183040][ T27] ? gfs2_end_log_read+0x500/0x500
[ 259.187333][ T6348] gfs2_get_tree+0x4d/0x1e0
[ 259.187353][ T6348] vfs_get_tree+0x88/0x270
[ 259.187374][ T6348] do_new_mount+0x24a/0xa40
[ 259.207990][ T27] ? submit_bio+0x2be/0x560
[ 259.212021][ T6348] __se_sys_mount+0x2d6/0x3c0
[ 259.216849][ T27] ? submit_bio_noacct+0x6d0/0x6d0
[ 259.222052][ T6348] ? __x64_sys_mount+0xc0/0xc0
[ 259.222074][ T6348] ? lockdep_hardirqs_on+0x94/0x140
[ 259.222092][ T6348] ? __x64_sys_mount+0x1c/0xc0
[ 259.222109][ T6348] do_syscall_64+0x4c/0xa0
[ 259.247316][ T27] gfs2_find_jhead+0xec2/0x1000
[ 259.247387][ T6348] ? clear_bhb_loop+0x30/0x80
[ 259.251812][ T27] gfs2_recover_func+0x663/0x1bc0
[ 259.256331][ T6348] ? clear_bhb_loop+0x30/0x80
[ 259.277333][ T27] ? __lock_acquire+0x289d/0x7c60
[ 259.280819][ T6348] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 259.285664][ T27] ? __get_log_header+0x4f0/0x4f0
[ 259.290048][ T6348] RIP: 0033:0x7fe7bdbd476a
[ 259.290066][ T6348] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 259.290079][ T6348] RSP: 002b:00007fe7bd241e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.290097][ T6348] RAX: ffffffffffffffda RBX: 00007fe7bd241ef0 RCX: 00007fe7bdbd476a
[ 259.313187][ T27] ? mark_lock+0x94/0x320
[ 259.314336][ T6348] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fe7bd241eb0
[ 259.327313][ T27] ? __lock_acquire+0x13ad/0x7c60
[ 259.329788][ T6348] RBP: 0000200000021140 R08: 00007fe7bd241ef0 R09: 0000000000008000
[ 259.350504][ T6352] loop2: detected capacity change from 0 to 32768
[ 259.358087][ T6348] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 259.358106][ T6348] R13: 00007fe7bd241eb0 R14: 000000000002117d R15: 00002000000211c0
[ 259.358131][ T6348]
[ 259.420954][ T6348] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.434341][ T6348] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.458349][ T27] ? verify_lock_unused+0x140/0x140
[ 259.463802][ T27] ? lockdep_hardirqs_on_prepare+0x3fc/0x760
[ 259.488966][ T6352] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.495627][ T27] ? __schedule+0x11c3/0x4390
[ 259.496361][ T6352] CPU: 0 PID: 6352 Comm: syz.2.319 Not tainted syzkaller #0
[ 259.508372][ T6352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 259.513047][ T27] ? _raw_spin_unlock_irq+0x1f/0x40
[ 259.518428][ T6352] Call Trace:
[ 259.518437][ T6352]
[ 259.518444][ T6352] dump_stack_lvl+0x168/0x230
[ 259.518465][ T6352] ? show_regs_print_info+0x20/0x20
[ 259.518482][ T6352] ? load_image+0x3b0/0x3b0
[ 259.518508][ T6352] sysfs_create_dir_ns+0x252/0x280
[ 259.518529][ T6352] ? __lock_acquire+0x7c60/0x7c60
[ 259.518549][ T6352] ? sysfs_warn_dup+0xa0/0xa0
[ 259.518572][ T6352] ? do_raw_spin_unlock+0x11d/0x230
[ 259.518593][ T6352] kobject_add_internal+0x662/0xd00
[ 259.518618][ T6352] kobject_init_and_add+0x122/0x190
[ 259.539257][ T27] process_one_work+0x863/0x1000
[ 259.539906][ T6352] ? lockdep_softirqs_off+0x420/0x420
[ 259.552354][ T27] ? worker_detach_from_pool+0x240/0x240
[ 259.554619][ T6352] ? kobject_add+0x210/0x210
[ 259.554647][ T6352] ? __init_swait_queue_head+0xa5/0x150
[ 259.554670][ T6352] gfs2_sys_fs_add+0x234/0x480
[ 259.554692][ T6352] ? gfs2_recover_set+0x240/0x240
[ 259.576626][ T27] ? lockdep_hardirqs_off+0x70/0x100
[ 259.579990][ T6352] ? snprintf+0xd7/0x120
[ 259.580014][ T6352] ? __free_pages+0x95/0x1a0
[ 259.580035][ T6352] ? vscnprintf+0x80/0x80
[ 259.580062][ T6352] gfs2_fill_super+0x128d/0x1f50
[ 259.580094][ T6352] ? gfs2_reconfigure+0xcd0/0xcd0
[ 259.580115][ T6352] ? preempt_count_add+0x8d/0x190
[ 259.580142][ T6352] ? sb_set_blocksize+0xa5/0xe0
[ 259.592901][ T27] ? _raw_spin_lock_irq+0xab/0xe0
[ 259.595767][ T6352] get_tree_bdev+0x3f1/0x610
[ 259.602964][ T27] ? _raw_spin_lock_irqsave+0xf0/0xf0
[ 259.606155][ T6352] ? gfs2_reconfigure+0xcd0/0xcd0
[ 259.615942][ T27] ? wq_worker_running+0x97/0x170
[ 259.616427][ T6352] gfs2_get_tree+0x4d/0x1e0
[ 259.621941][ T27] worker_thread+0xaa8/0x12a0
[ 259.625311][ T6352] vfs_get_tree+0x88/0x270
[ 259.634182][ T27] kthread+0x436/0x520
[ 259.634633][ T6352] do_new_mount+0x24a/0xa40
[ 259.641241][ T27] ? rcu_lock_release+0x20/0x20
[ 259.644656][ T6352] __se_sys_mount+0x2d6/0x3c0
[ 259.653990][ T27] ? kthread_blkcg+0xd0/0xd0
[ 259.654660][ T6352] ? __x64_sys_mount+0xc0/0xc0
[ 259.660496][ T27] ret_from_fork+0x1f/0x30
[ 259.664567][ T6352] ? lockdep_hardirqs_on+0x94/0x140
[ 259.664589][ T6352] ? __x64_sys_mount+0x1c/0xc0
[ 259.664610][ T6352] do_syscall_64+0x4c/0xa0
[ 259.664627][ T6352] ? clear_bhb_loop+0x30/0x80
[ 259.675345][ T27]
[ 259.679270][ T6352] ? clear_bhb_loop+0x30/0x80
[ 259.679295][ T6352] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 259.679312][ T6352] RIP: 0033:0x7fbbe852676a
[ 259.679329][ T6352] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 259.679343][ T6352] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 259.679362][ T6352] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 259.679376][ T6352] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 259.686025][ T27] INFO: task syz.4.21:5347 blocked for more than 143 seconds.
[ 259.688433][ T6352] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 259.688449][ T6352] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 259.688460][ T6352] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 259.688485][ T6352]
[ 259.770514][ T6350] loop1: detected capacity change from 0 to 32768
[ 259.779283][ T6352] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 259.857576][ T6350] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 259.859179][ T6352] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 259.874554][ T27] Not tainted syzkaller #0
[ 259.877502][ T6350] CPU: 0 PID: 6350 Comm: syz.1.318 Not tainted syzkaller #0
[ 259.880655][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 259.886801][ T6350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 259.886815][ T6350] Call Trace:
[ 259.886821][ T6350]
[ 259.886829][ T6350] dump_stack_lvl+0x168/0x230
[ 259.916963][ T6350] ? show_regs_print_info+0x20/0x20
[ 259.922170][ T6350] ? load_image+0x3b0/0x3b0
[ 259.926699][ T6350] sysfs_create_dir_ns+0x252/0x280
[ 259.927320][ T27] task:syz.4.21 state:D
[ 259.931815][ T6350] ? __lock_acquire+0x7c60/0x7c60
[ 259.931824][ T27] stack:23712 pid: 5347 ppid: 4967 flags:0x00004004
[ 259.931842][ T27] Call Trace:
[ 259.936571][ T6350] ? sysfs_warn_dup+0xa0/0xa0
[ 259.953004][ T27]
[ 259.956241][ T6350] ? do_raw_spin_unlock+0x11d/0x230
[ 259.959254][ T27] __schedule+0x11bb/0x4390
[ 259.964334][ T6350] kobject_add_internal+0x662/0xd00
[ 259.968880][ T27] ? mark_lock+0x94/0x320
[ 259.973987][ T6350] kobject_init_and_add+0x122/0x190
[ 259.982456][ T27] ? lockdep_hardirqs_on_prepare+0x3fc/0x760
[ 259.983466][ T6350] ? lockdep_softirqs_off+0x420/0x420
[ 259.989803][ T27] ? lock_chain_count+0x20/0x20
[ 259.994952][ T6350] ? kobject_add+0x210/0x210
[ 259.994977][ T6350] ? __init_swait_queue_head+0xa5/0x150
[ 260.000244][ T27] ? release_firmware_map_entry+0x190/0x190
[ 260.004378][ T6350] gfs2_sys_fs_add+0x234/0x480
[ 260.010914][ T27] ? _raw_spin_lock_irqsave+0xb0/0xf0
[ 260.015807][ T6350] ? gfs2_recover_set+0x240/0x240
[ 260.020967][ T27] ? _raw_spin_unlock_irqrestore+0x82/0x100
[ 260.025934][ T6350] ? snprintf+0xd7/0x120
[ 260.031595][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 260.036805][ T6350] ? __free_pages+0x95/0x1a0
[ 260.041457][ T27] ? _raw_spin_unlock_irqrestore+0xaa/0x100
[ 260.046464][ T6350] ? vscnprintf+0x80/0x80
[ 260.051329][ T27] schedule+0x11b/0x1e0
[ 260.056913][ T6350] gfs2_fill_super+0x128d/0x1f50
[ 260.056961][ T6350] ? gfs2_reconfigure+0xcd0/0xcd0
[ 260.061772][ T27] bit_wait+0xd/0xc0
[ 260.065494][ T6350] ? preempt_count_add+0x8d/0x190
[ 260.072917][ T27] out_of_line_wait_on_bit+0x15e/0x200
[ 260.075552][ T6350] ? sb_set_blocksize+0xa5/0xe0
[ 260.079911][ T27] ? out_of_line_wait_on_bit_lock+0x160/0x160
[ 260.084611][ T6350] get_tree_bdev+0x3f1/0x610
[ 260.084640][ T6350] ? gfs2_reconfigure+0xcd0/0xcd0
[ 260.084661][ T6350] gfs2_get_tree+0x4d/0x1e0
[ 260.084680][ T6350] vfs_get_tree+0x88/0x270
[ 260.084698][ T6350] do_new_mount+0x24a/0xa40
[ 260.084722][ T6350] __se_sys_mount+0x2d6/0x3c0
[ 260.084746][ T6350] ? __x64_sys_mount+0xc0/0xc0
[ 260.084767][ T6350] ? lockdep_hardirqs_on+0x94/0x140
[ 260.084788][ T6350] ? __x64_sys_mount+0x1c/0xc0
[ 260.084808][ T6350] do_syscall_64+0x4c/0xa0
[ 260.084825][ T6350] ? clear_bhb_loop+0x30/0x80
[ 260.084843][ T6350] ? clear_bhb_loop+0x30/0x80
[ 260.084861][ T6350] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 260.084880][ T6350] RIP: 0033:0x7fc1174bd76a
[ 260.084899][ T6350] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 260.084915][ T6350] RSP: 002b:00007fc116b2ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 260.084936][ T6350] RAX: ffffffffffffffda RBX: 00007fc116b2aef0 RCX: 00007fc1174bd76a
[ 260.084949][ T6350] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fc116b2aeb0
[ 260.084963][ T6350] RBP: 0000200000021140 R08: 00007fc116b2aef0 R09: 0000000000008000
[ 260.084976][ T6350] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 260.084989][ T6350] R13: 00007fc116b2aeb0 R14: 000000000002117d R15: 00002000000211c0
[ 260.085015][ T6350]
[ 260.196810][ T6350] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 260.212826][ T27] ? __wait_on_bit+0x170/0x170
[ 260.243605][ T6350] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 260.260995][ T27] ? bit_waitqueue+0x30/0x30
[ 260.269986][ T27] ? do_raw_spin_unlock+0x11d/0x230
[ 260.275207][ T27] gfs2_recover_journal+0x104/0x150
[ 260.280544][ T27] init_journal+0x1770/0x2220
[ 260.285372][ T27] ? end_bio_io_page+0x100/0x100
[ 260.291339][ T27] ? snprintf+0xd7/0x120
[ 260.295698][ T27] ? init_journal+0x710/0x2220
[ 260.300610][ T27] ? vscnprintf+0x80/0x80
[ 260.305096][ T27] ? gfs2_glock_nq_num+0x17a/0x1b0
[ 260.310898][ T27] init_inodes+0xdb/0x320
[ 260.315242][ T27] gfs2_fill_super+0x1701/0x1f50
[ 260.320305][ T27] ? gfs2_reconfigure+0xcd0/0xcd0
[ 260.325476][ T27] ? gfs2_glock_nq_num+0x82/0x1b0
[ 260.330659][ T27] ? preempt_count_add+0x8d/0x190
[ 260.335814][ T27] ? sb_set_blocksize+0xa5/0xe0
[ 260.340748][ T27] get_tree_bdev+0x3f1/0x610
[ 260.345457][ T27] ? gfs2_reconfigure+0xcd0/0xcd0
[ 260.350708][ T27] gfs2_get_tree+0x4d/0x1e0
[ 260.355549][ T27] vfs_get_tree+0x88/0x270
[ 260.360044][ T27] do_new_mount+0x24a/0xa40
[ 260.364676][ T27] __se_sys_mount+0x2d6/0x3c0
[ 260.369430][ T27] ? __x64_sys_mount+0xc0/0xc0
[ 260.374363][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 260.379707][ T27] ? __x64_sys_mount+0x1c/0xc0
[ 260.384690][ T27] do_syscall_64+0x4c/0xa0
[ 260.389673][ T27] ? clear_bhb_loop+0x30/0x80
[ 260.394483][ T27] ? clear_bhb_loop+0x30/0x80
[ 260.399228][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 260.405263][ T27] RIP: 0033:0x7f920247776a
[ 260.409881][ T27] RSP: 002b:00007f9201ae4e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 260.424767][ T27] RAX: ffffffffffffffda RBX: 00007f9201ae4ef0 RCX: 00007f920247776a
[ 260.433107][ T27] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f9201ae4eb0
[ 260.450362][ T27] RBP: 0000200000021140 R08: 00007f9201ae4ef0 R09: 0000000000008000
[ 260.464382][ T27] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 260.473856][ T27] R13: 00007f9201ae4eb0 R14: 000000000002117d R15: 00002000000211c0
[ 260.488466][ T27]
[ 260.492678][ T27]
[ 260.492678][ T27] Showing all locks held in the system:
[ 260.500838][ T27] 2 locks held by kworker/0:0/7:
[ 260.505916][ T27] #0: ffff888146299938 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x760/0x1000
[ 260.517016][ T27] #1: ffffc90000cc7d00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x7a3/0x1000
[ 260.533424][ T6354] loop2: detected capacity change from 0 to 32768
[ 260.538929][ T6346] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 260.574060][ T6346] CPU: 0 PID: 6346 Comm: syz.5.316 Not tainted syzkaller #0
[ 260.581397][ T6346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 260.581541][ T27] 1 lock held by khungtaskd/27:
[ 260.591455][ T6346] Call Trace:
[ 260.591464][ T6346]
[ 260.591472][ T6346] dump_stack_lvl+0x168/0x230
[ 260.591496][ T6346] ? show_regs_print_info+0x20/0x20
[ 260.591514][ T6346] ? load_image+0x3b0/0x3b0
[ 260.607352][ T27] #0:
[ 260.612364][ T6346] sysfs_create_dir_ns+0x252/0x280
[ 260.616836][ T27] ffffffff8c11c720
[ 260.619601][ T6346] ? __lock_acquire+0x7c60/0x7c60
[ 260.619623][ T6346] ? sysfs_warn_dup+0xa0/0xa0
[ 260.619646][ T6346] ? do_raw_spin_unlock+0x11d/0x230
[ 260.619667][ T6346] kobject_add_internal+0x662/0xd00
[ 260.619690][ T6346] kobject_init_and_add+0x122/0x190
[ 260.619706][ T6346] ? lockdep_softirqs_off+0x420/0x420
[ 260.619728][ T6346] ? kobject_add+0x210/0x210
[ 260.663827][ T6346] ? __init_swait_queue_head+0xa5/0x150
[ 260.669478][ T6346] gfs2_sys_fs_add+0x234/0x480
[ 260.674259][ T6346] ? gfs2_recover_set+0x240/0x240
[ 260.679387][ T6346] ? snprintf+0xd7/0x120
[ 260.683632][ T6346] ? __free_pages+0x95/0x1a0
[ 260.687353][ T27] (rcu_read_lock
[ 260.688220][ T6346] ? vscnprintf+0x80/0x80
[ 260.688228][ T27] ){....}-{1:2}
[ 260.688253][ T6346] gfs2_fill_super+0x128d/0x1f50
[ 260.691858][ T27] , at: rcu_lock_acquire+0x0/0x30
[ 260.696174][ T6346] ? gfs2_reconfigure+0xcd0/0xcd0
[ 260.696195][ T6346] ? preempt_count_add+0x8d/0x190
[ 260.696221][ T6346] ? sb_set_blocksize+0xa5/0xe0
[ 260.696242][ T6346] get_tree_bdev+0x3f1/0x610
[ 260.696262][ T6346] ? gfs2_reconfigure+0xcd0/0xcd0
[ 260.696281][ T6346] gfs2_get_tree+0x4d/0x1e0
[ 260.696302][ T6346] vfs_get_tree+0x88/0x270
[ 260.696322][ T6346] do_new_mount+0x24a/0xa40
[ 260.696348][ T6346] __se_sys_mount+0x2d6/0x3c0
[ 260.696372][ T6346] ? __x64_sys_mount+0xc0/0xc0
[ 260.696394][ T6346] ? lockdep_hardirqs_on+0x94/0x140
[ 260.696413][ T6346] ? __x64_sys_mount+0x1c/0xc0
[ 260.696434][ T6346] do_syscall_64+0x4c/0xa0
[ 260.696451][ T6346] ? clear_bhb_loop+0x30/0x80
[ 260.696469][ T6346] ? clear_bhb_loop+0x30/0x80
[ 260.696488][ T6346] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 260.696506][ T6346] RIP: 0033:0x7f6deb47c76a
[ 260.696524][ T6346] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 260.696539][ T6346] RSP: 002b:00007f6deaae9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 260.696559][ T6346] RAX: ffffffffffffffda RBX: 00007f6deaae9ef0 RCX: 00007f6deb47c76a
[ 260.696572][ T6346] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007f6deaae9eb0
[ 260.696586][ T6346] RBP: 0000200000021140 R08: 00007f6deaae9ef0 R09: 0000000000008000
[ 260.696599][ T6346] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 260.696610][ T6346] R13: 00007f6deaae9eb0 R14: 000000000002117d R15: 00002000000211c0
[ 260.696631][ T6346]
[ 260.783294][ T6346] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 260.893299][ T6346] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 260.897559][ T27] 3 locks held by kworker/0:2/1108:
[ 260.907681][ T27] #0: ffff888016870938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x760/0x1000
[ 260.933445][ T27] #1: ffffc90004e57d00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7a3/0x1000
[ 260.975532][ T27] #2: ffffffff8c1211a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x320/0x6b0
[ 261.003832][ T27] 2 locks held by getty/3940:
[ 261.017289][ T27] #0: ffff88814cba4098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 261.037410][ T27] #1: ffffc90002d032e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5ba/0x1a30
[ 261.057299][ T27] 3 locks held by kworker/1:5/4275:
[ 261.067532][ T27] 3 locks held by kworker/0:17/4291:
[ 261.077584][ T27] #0: ffff888016870938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x760/0x1000
[ 261.097329][ T27] #1: ffffc900031bfd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7a3/0x1000
[ 261.127295][ T27] #2: ffffffff8c1211a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x347/0x6b0
[ 261.167364][ T27] 2 locks held by udevd/4865:
[ 261.177502][ T27] #0: ffff8880205f6518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[ 261.217338][ T27] #1: ffff888020812468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90
[ 261.237016][ T27] 1 lock held by udevd/4894:
[ 261.247144][ T27] #0: ffff8880205ed118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x157/0xa60
[ 261.283997][ T27] 2 locks held by kworker/0:21/4951:
[ 261.294129][ T27] #0: ffff888016872138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x760/0x1000
[ 261.324962][ T27] #1: ffffc900032afd00 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x7a3/0x1000
[ 261.346618][ T27] 1 lock held by syz.4.21/5347:
[ 261.366849][ T27] #0: ffff88807a1bc0e0 (&type->s_umount_key#53/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950
[ 261.399890][ T27] 1 lock held by syz.0.315/6344:
[ 261.404860][ T27] #0: ffff88814705b468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90
[ 261.445363][ T27] 1 lock held by syz.1.318/6350:
[ 261.465642][ T27] #0: ffff88814705e468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90
[ 261.494321][ T27] 2 locks held by syz.2.321/6354:
[ 261.505597][ T27] #0: ffff8880205ed118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[ 261.521364][ T6356] loop3: detected capacity change from 0 to 32768
[ 261.528027][ T27] #1: ffff888020749468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 261.537832][ T27] 2 locks held by syz.3.320/6356:
[ 261.542954][ T27] #0: ffff8880205eed18 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0
[ 261.552525][ T27] #1: ffff88802074c468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0
[ 261.561943][ T27] 3 locks held by syz.5.322/6358:
[ 261.567162][ T27]
[ 261.575353][ T27] =============================================
[ 261.575353][ T27]
[ 261.621007][ T6354] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 261.627339][ T27] NMI backtrace for cpu 0
[ 261.632924][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[ 261.640133][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 261.650193][ T27] Call Trace:
[ 261.653482][ T27]
[ 261.656408][ T27] dump_stack_lvl+0x168/0x230
[ 261.661090][ T27] ? show_regs_print_info+0x20/0x20
[ 261.666475][ T27] ? load_image+0x3b0/0x3b0
[ 261.671145][ T27] ? tick_nohz_tick_stopped+0x7b/0xb0
[ 261.676532][ T27] ? nmi_cpu_backtrace+0x1b6/0x3d0
[ 261.681687][ T27] nmi_cpu_backtrace+0x397/0x3d0
[ 261.686700][ T27] ? nmi_trigger_cpumask_backtrace+0x280/0x280
[ 261.692870][ T27] ? _printk+0xcc/0x110
[ 261.697038][ T27] ? load_image+0x3b0/0x3b0
[ 261.701656][ T27] ? load_image+0x3b0/0x3b0
[ 261.706166][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 261.712588][ T27] nmi_trigger_cpumask_backtrace+0x163/0x280
[ 261.718575][ T27] watchdog+0xe0f/0xe50
[ 261.722802][ T27] kthread+0x436/0x520
[ 261.726968][ T27] ? hungtask_pm_notify+0x40/0x40
[ 261.732015][ T27] ? kthread_blkcg+0xd0/0xd0
[ 261.736607][ T27] ret_from_fork+0x1f/0x30
[ 261.741041][ T27]
[ 261.744676][ T27] Sending NMI from CPU 0 to CPUs 1:
[ 261.750051][ C1] NMI backtrace for cpu 1
[ 261.750062][ C1] CPU: 1 PID: 6344 Comm: syz.0.315 Not tainted syzkaller #0
[ 261.750077][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 261.750086][ C1] RIP: 0010:__lock_acquire+0x69a/0x7c60
[ 261.750106][ C1] Code: 0f 44 c8 89 8c 24 c8 00 00 00 48 8b 84 24 88 00 00 00 42 0f b6 04 00 84 c0 0f 85 69 63 00 00 45 8b bd e8 0a 00 00 41 8d 47 ff <83> f8 ff 41 bc ff ff ff ff 44 0f 4c e0 49 81 c5 10 0b 00 00 41 ff
[ 261.750119][ C1] RSP: 0018:ffffc90005c56fe0 EFLAGS: 00000046
[ 261.750132][ C1] RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000001
[ 261.750142][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8ffaa0c0
[ 261.750152][ C1] RBP: ffffc90005c57230 R08: dffffc0000000000 R09: fffffbfff1ff5419
[ 261.750163][ C1] R10: fffffbfff1ff5419 R11: 1ffffffff1ff5418 R12: ffff88802424a8d0
[ 261.750173][ C1] R13: ffff888024249dc0 R14: 0000000000000002 R15: 0000000000000000
[ 261.750183][ C1] FS: 00007fd32ad176c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
[ 261.750196][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 261.750206][ C1] CR2: 00007fbf4ac83000 CR3: 00000000244ad000 CR4: 00000000003506e0
[ 261.750220][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 261.750228][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 261.750238][ C1] Call Trace:
[ 261.750242][ C1]
[ 261.750248][ C1] ? evict+0x485/0x870
[ 261.750269][ C1] ? __lock_acquire+0x13ad/0x7c60
[ 261.750284][ C1] ? verify_lock_unused+0x140/0x140
[ 261.750298][ C1] ? verify_lock_unused+0x140/0x140
[ 261.750313][ C1] ? verify_lock_unused+0x140/0x140
[ 261.750335][ C1] lock_acquire+0x197/0x3f0
[ 261.750350][ C1] ? __page_memcg+0x140/0x140
[ 261.750366][ C1] ? read_lock_is_recursive+0x10/0x10
[ 261.750382][ C1] ? __lock_acquire+0x7c60/0x7c60
[ 261.750397][ C1] ? __page_memcg+0xa2/0x140
[ 261.750411][ C1] rcu_lock_acquire+0x20/0x30
[ 261.750423][ C1] ? __page_memcg+0x140/0x140
[ 261.750435][ C1] percpu_ref_put+0x16/0x150
[ 261.750448][ C1] __mem_cgroup_uncharge_list+0x6c/0xc0
[ 261.750464][ C1] release_pages+0x1843/0x1bb0
[ 261.750479][ C1] ? lru_cache_disable+0x30/0x30
[ 261.750494][ C1] ? page_cache_free_page+0x20d/0x4e0
[ 261.750510][ C1] __pagevec_release+0x6d/0xe0
[ 261.750523][ C1] shmem_undo_range+0x5cb/0x1880
[ 261.750541][ C1] ? __lock_acquire+0x13ad/0x7c60
[ 261.750556][ C1] ? shmem_truncate_range+0xa0/0xa0
[ 261.750577][ C1] ? do_raw_spin_lock+0x11d/0x280
[ 261.750591][ C1] ? __rwlock_init+0x140/0x140
[ 261.750604][ C1] shmem_evict_inode+0x20d/0xa00
[ 261.750620][ C1] ? _raw_spin_unlock+0x24/0x40
[ 261.750634][ C1] ? inode_wait_for_writeback+0x1b0/0x200
[ 261.750652][ C1] ? shmem_free_in_core_inode+0xb0/0xb0
[ 261.750666][ C1] ? do_raw_spin_lock+0x11d/0x280
[ 261.750679][ C1] ? bit_waitqueue+0x30/0x30
[ 261.750695][ C1] ? do_raw_spin_unlock+0x11d/0x230
[ 261.750708][ C1] ? shmem_free_in_core_inode+0xb0/0xb0
[ 261.750723][ C1] evict+0x485/0x870
[ 261.750739][ C1] ? proc_nr_inodes+0x320/0x320
[ 261.750760][ C1] ? do_raw_spin_unlock+0x11d/0x230
[ 261.750773][ C1] ? _raw_spin_unlock+0x24/0x40
[ 261.750788][ C1] __dentry_kill+0x431/0x650
[ 261.750804][ C1] dentry_kill+0xb8/0x290
[ 261.750817][ C1] dput+0xd8/0x1a0
[ 261.750828][ C1] __fput+0x5ee/0x930
[ 261.750845][ C1] task_work_run+0x125/0x1a0
[ 261.750862][ C1] get_signal+0x1222/0x12c0
[ 261.750876][ C1] ? verify_lock_unused+0x140/0x140
[ 261.750892][ C1] ? blkdev_bszset+0x200/0x200
[ 261.750909][ C1] arch_do_signal_or_restart+0xc1/0x1300
[ 261.750931][ C1] ? get_sigframe_size+0x10/0x10
[ 261.750953][ C1] ? exit_to_user_mode_loop+0x3b/0x130
[ 261.750970][ C1] exit_to_user_mode_loop+0x9e/0x130
[ 261.750986][ C1] exit_to_user_mode_prepare+0xee/0x180
[ 261.751001][ C1] syscall_exit_to_user_mode+0x16/0x40
[ 261.751018][ C1] do_syscall_64+0x58/0xa0
[ 261.751031][ C1] ? clear_bhb_loop+0x30/0x80
[ 261.751045][ C1] ? clear_bhb_loop+0x30/0x80
[ 261.751059][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 261.751072][ C1] RIP: 0033:0x7fd32b6a7bcb
[ 261.751085][ C1] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
[ 261.751097][ C1] RSP: 002b:00007fd32ad16e10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 261.751111][ C1] RAX: 0000000000000000 RBX: ffffffffffffffff RCX: 00007fd32b6a7bcb
[ 261.751121][ C1] RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000003
[ 261.751130][ C1] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000008000
[ 261.751139][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000011
[ 261.751148][ C1] R13: 00007fd32ad16eb0 R14: 000000000002117d R15: 00002000000211c0
[ 261.751163][ C1]
[ 261.819205][ T6354] CPU: 0 PID: 6354 Comm: syz.2.321 Not tainted syzkaller #0
[ 262.240620][ T6354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 262.250746][ T6354] Call Trace:
[ 262.254108][ T6354]
[ 262.257023][ T6354] dump_stack_lvl+0x168/0x230
[ 262.261690][ T6354] ? show_regs_print_info+0x20/0x20
[ 262.266881][ T6354] ? load_image+0x3b0/0x3b0
[ 262.271377][ T6354] sysfs_create_dir_ns+0x252/0x280
[ 262.276474][ T6354] ? __lock_acquire+0x7c60/0x7c60
[ 262.281484][ T6354] ? sysfs_warn_dup+0xa0/0xa0
[ 262.286147][ T6354] ? do_raw_spin_unlock+0x11d/0x230
[ 262.291415][ T6354] kobject_add_internal+0x662/0xd00
[ 262.296690][ T6354] kobject_init_and_add+0x122/0x190
[ 262.301867][ T6354] ? lockdep_softirqs_off+0x420/0x420
[ 262.307466][ T6354] ? kobject_add+0x210/0x210
[ 262.312040][ T6354] ? __init_swait_queue_head+0xa5/0x150
[ 262.317756][ T6354] gfs2_sys_fs_add+0x234/0x480
[ 262.322524][ T6354] ? gfs2_recover_set+0x240/0x240
[ 262.327617][ T6354] ? snprintf+0xd7/0x120
[ 262.331845][ T6354] ? __free_pages+0x95/0x1a0
[ 262.336507][ T6354] ? vscnprintf+0x80/0x80
[ 262.340829][ T6354] gfs2_fill_super+0x128d/0x1f50
[ 262.345763][ T6354] ? gfs2_reconfigure+0xcd0/0xcd0
[ 262.350772][ T6354] ? preempt_count_add+0x8d/0x190
[ 262.355785][ T6354] ? sb_set_blocksize+0xa5/0xe0
[ 262.360710][ T6354] get_tree_bdev+0x3f1/0x610
[ 262.365289][ T6354] ? gfs2_reconfigure+0xcd0/0xcd0
[ 262.370328][ T6354] gfs2_get_tree+0x4d/0x1e0
[ 262.374851][ T6354] vfs_get_tree+0x88/0x270
[ 262.379443][ T6354] do_new_mount+0x24a/0xa40
[ 262.383946][ T6354] __se_sys_mount+0x2d6/0x3c0
[ 262.388629][ T6354] ? __x64_sys_mount+0xc0/0xc0
[ 262.393388][ T6354] ? lockdep_hardirqs_on+0x94/0x140
[ 262.398585][ T6354] ? __x64_sys_mount+0x1c/0xc0
[ 262.403494][ T6354] do_syscall_64+0x4c/0xa0
[ 262.407909][ T6354] ? clear_bhb_loop+0x30/0x80
[ 262.412573][ T6354] ? clear_bhb_loop+0x30/0x80
[ 262.417331][ T6354] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 262.423207][ T6354] RIP: 0033:0x7fbbe852676a
[ 262.427608][ T6354] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 262.447283][ T6354] RSP: 002b:00007fbbe7b93e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 262.455860][ T6354] RAX: ffffffffffffffda RBX: 00007fbbe7b93ef0 RCX: 00007fbbe852676a
[ 262.463815][ T6354] RDX: 0000200000021140 RSI: 0000200000021180 RDI: 00007fbbe7b93eb0
[ 262.471775][ T6354] RBP: 0000200000021140 R08: 00007fbbe7b93ef0 R09: 0000000000008000
[ 262.479735][ T6354] R10: 0000000000008000 R11: 0000000000000246 R12: 0000200000021180
[ 262.487691][ T6354] R13: 00007fbbe7b93eb0 R14: 000000000002117d R15: 00002000000211c0
[ 262.495694][ T6354]
[ 262.535506][ T6356] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 262.539698][ T6354] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 262.556535][ T6354] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 262.564608][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 262.571487][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[ 262.578699][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 262.589027][ T27] Call Trace:
[ 262.592312][ T27]
[ 262.595250][ T27] dump_stack_lvl+0x168/0x230
[ 262.599935][ T27] ? show_regs_print_info+0x20/0x20
[ 262.605144][ T27] ? load_image+0x3b0/0x3b0
[ 262.609661][ T27] panic+0x2c9/0x7f0
[ 262.613561][ T27] ? schedule_preempt_disabled+0x20/0x20
[ 262.619209][ T27] ? bpf_jit_dump+0xd0/0xd0
[ 262.623719][ T27] ? __irq_work_queue_local+0x12c/0x190
[ 262.629368][ T27] ? nmi_trigger_cpumask_backtrace+0x260/0x280
[ 262.635623][ T27] watchdog+0xe4e/0xe50
[ 262.639793][ T27] kthread+0x436/0x520
[ 262.643860][ T27] ? hungtask_pm_notify+0x40/0x40
[ 262.648914][ T27] ? kthread_blkcg+0xd0/0xd0
[ 262.653601][ T27] ret_from_fork+0x1f/0x30
[ 262.658035][ T27]
[ 262.661347][ T27] Kernel Offset: disabled
[ 262.665677][ T27] Rebooting in 86400 seconds..