43685][ T6324] kobject_init_and_add+0x128/0x194 [ 198.244671][ T6324] gfs2_sys_fs_add+0x208/0x428 [ 198.245543][ T6324] gfs2_fill_super+0xe20/0x1a9c [ 198.246435][ T6324] get_tree_bdev+0x35c/0x54c [ 198.247352][ T6324] gfs2_get_tree+0x58/0x1b8 [ 198.248211][ T6324] vfs_get_tree+0x90/0x278 [ 198.249049][ T6324] do_new_mount+0x228/0x804 [ 198.249851][ T6324] path_mount+0x57c/0xfe8 [ 198.250648][ T6324] __arm64_sys_mount+0x488/0x5f8 [ 198.251460][ T6324] invoke_syscall+0x98/0x28c [ 198.252224][ T6324] el0_svc_common+0x13c/0x258 [ 198.252962][ T6324] do_el0_svc+0x5c/0x140 [ 198.253630][ T6324] el0_svc+0x78/0x1d0 [ 198.254296][ T6324] el0t_64_sync_handler+0xcc/0xe4 [ 198.255144][ T6324] el0t_64_sync+0x1a0/0x1a4 [ 198.256128][ T6324] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 198.258124][ T6324] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 198.390743][ T6327] loop1: detected capacity change from 0 to 32768 [ 198.442264][ T6327] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 198.443524][ T6327] CPU: 1 PID: 6327 Comm: syz.1.552 Not tainted syzkaller #0 [ 198.444892][ T6327] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 198.446483][ T6327] Call trace: [ 198.446948][ T6327] dump_backtrace+0x0/0x458 [ 198.447679][ T6327] show_stack+0x2c/0x3c [ 198.448363][ T6327] __dump_stack+0x30/0x40 [ 198.449037][ T6327] dump_stack_lvl+0xf4/0x15c [ 198.449732][ T6327] dump_stack+0x1c/0x5c [ 198.450362][ T6327] sysfs_create_dir_ns+0x244/0x264 [ 198.451134][ T6327] kobject_add_internal+0x594/0xc2c [ 198.452008][ T6327] kobject_init_and_add+0x128/0x194 [ 198.452888][ T6327] gfs2_sys_fs_add+0x208/0x428 [ 198.453689][ T6327] gfs2_fill_super+0xe20/0x1a9c [ 198.454596][ T6327] get_tree_bdev+0x35c/0x54c [ 198.455316][ T6327] gfs2_get_tree+0x58/0x1b8 [ 198.456158][ T6327] vfs_get_tree+0x90/0x278 [ 198.457018][ T6327] do_new_mount+0x228/0x804 [ 198.457771][ T6327] path_mount+0x57c/0xfe8 [ 198.458447][ T6327] __arm64_sys_mount+0x488/0x5f8 [ 198.459262][ T6327] invoke_syscall+0x98/0x28c [ 198.460037][ T6327] el0_svc_common+0x13c/0x258 [ 198.460744][ T6327] do_el0_svc+0x5c/0x140 [ 198.461474][ T6327] el0_svc+0x78/0x1d0 [ 198.462108][ T6327] el0t_64_sync_handler+0xcc/0xe4 [ 198.462866][ T6327] el0t_64_sync+0x1a0/0x1a4 [ 198.465232][ T6327] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 198.467344][ T6327] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 198.614860][ T6330] loop1: detected capacity change from 0 to 32768 [ 198.624812][ T6330] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 198.626144][ T6330] CPU: 0 PID: 6330 Comm: syz.1.553 Not tainted syzkaller #0 [ 198.627268][ T6330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 198.628731][ T6330] Call trace: [ 198.629295][ T6330] dump_backtrace+0x0/0x458 [ 198.630149][ T6330] show_stack+0x2c/0x3c [ 198.630860][ T6330] __dump_stack+0x30/0x40 [ 198.631616][ T6330] dump_stack_lvl+0xf4/0x15c [ 198.632418][ T6330] dump_stack+0x1c/0x5c [ 198.633155][ T6330] sysfs_create_dir_ns+0x244/0x264 [ 198.634121][ T6330] kobject_add_internal+0x594/0xc2c [ 198.635105][ T6330] kobject_init_and_add+0x128/0x194 [ 198.636075][ T6330] gfs2_sys_fs_add+0x208/0x428 [ 198.636931][ T6330] gfs2_fill_super+0xe20/0x1a9c [ 198.637736][ T6330] get_tree_bdev+0x35c/0x54c [ 198.638484][ T6330] gfs2_get_tree+0x58/0x1b8 [ 198.639190][ T6330] vfs_get_tree+0x90/0x278 [ 198.640035][ T6330] do_new_mount+0x228/0x804 [ 198.640827][ T6330] path_mount+0x57c/0xfe8 [ 198.641552][ T6330] __arm64_sys_mount+0x488/0x5f8 [ 198.642441][ T6330] invoke_syscall+0x98/0x28c [ 198.643292][ T6330] el0_svc_common+0x13c/0x258 [ 198.644105][ T6330] do_el0_svc+0x5c/0x140 [ 198.644855][ T6330] el0_svc+0x78/0x1d0 [ 198.645559][ T6330] el0t_64_sync_handler+0xcc/0xe4 [ 198.646367][ T6330] el0t_64_sync+0x1a0/0x1a4 [ 198.647175][ T6330] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 198.649129][ T6330] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 198.804484][ T6333] loop1: detected capacity change from 0 to 32768 [ 198.897075][ T6333] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 198.898418][ T6333] CPU: 1 PID: 6333 Comm: syz.1.554 Not tainted syzkaller #0 [ 198.899468][ T6333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 198.901102][ T6333] Call trace: [ 198.901597][ T6333] dump_backtrace+0x0/0x458 [ 198.902294][ T6333] show_stack+0x2c/0x3c [ 198.902944][ T6333] __dump_stack+0x30/0x40 [ 198.903699][ T6333] dump_stack_lvl+0xf4/0x15c [ 198.904525][ T6333] dump_stack+0x1c/0x5c [ 198.905273][ T6333] sysfs_create_dir_ns+0x244/0x264 [ 198.906214][ T6333] kobject_add_internal+0x594/0xc2c [ 198.907046][ T6333] kobject_init_and_add+0x128/0x194 [ 198.907918][ T6333] gfs2_sys_fs_add+0x208/0x428 [ 198.908665][ T6333] gfs2_fill_super+0xe20/0x1a9c [ 198.909444][ T6333] get_tree_bdev+0x35c/0x54c [ 198.910200][ T6333] gfs2_get_tree+0x58/0x1b8 [ 198.910925][ T6333] vfs_get_tree+0x90/0x278 [ 198.911630][ T6333] do_new_mount+0x228/0x804 [ 198.912410][ T6333] path_mount+0x57c/0xfe8 [ 198.913114][ T6333] __arm64_sys_mount+0x488/0x5f8 [ 198.913996][ T6333] invoke_syscall+0x98/0x28c [ 198.914822][ T6333] el0_svc_common+0x13c/0x258 [ 198.915662][ T6333] do_el0_svc+0x5c/0x140 [ 198.916436][ T6333] el0_svc+0x78/0x1d0 [ 198.917152][ T6333] el0t_64_sync_handler+0xcc/0xe4 [ 198.918055][ T6333] el0t_64_sync+0x1a0/0x1a4 [ 198.919056][ T6333] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 198.921469][ T6333] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 199.058371][ T6336] loop1: detected capacity change from 0 to 32768 [ 199.066459][ T6336] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 199.067696][ T6336] CPU: 0 PID: 6336 Comm: syz.1.555 Not tainted syzkaller #0 [ 199.068847][ T6336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 199.070385][ T6336] Call trace: [ 199.070917][ T6336] dump_backtrace+0x0/0x458 [ 199.071623][ T6336] show_stack+0x2c/0x3c [ 199.072304][ T6336] __dump_stack+0x30/0x40 [ 199.072993][ T6336] dump_stack_lvl+0xf4/0x15c [ 199.073793][ T6336] dump_stack+0x1c/0x5c [ 199.074512][ T6336] sysfs_create_dir_ns+0x244/0x264 [ 199.075423][ T6336] kobject_add_internal+0x594/0xc2c [ 199.076309][ T6336] kobject_init_and_add+0x128/0x194 [ 199.077168][ T6336] gfs2_sys_fs_add+0x208/0x428 [ 199.078038][ T6336] gfs2_fill_super+0xe20/0x1a9c [ 199.078884][ T6336] get_tree_bdev+0x35c/0x54c [ 199.079694][ T6336] gfs2_get_tree+0x58/0x1b8 [ 199.080460][ T6336] vfs_get_tree+0x90/0x278 [ 199.081202][ T6336] do_new_mount+0x228/0x804 [ 199.082032][ T6336] path_mount+0x57c/0xfe8 [ 199.082869][ T6336] __arm64_sys_mount+0x488/0x5f8 [ 199.083776][ T6336] invoke_syscall+0x98/0x28c [ 199.084539][ T6336] el0_svc_common+0x13c/0x258 [ 199.085331][ T6336] do_el0_svc+0x5c/0x140 [ 199.086024][ T6336] el0_svc+0x78/0x1d0 [ 199.086772][ T6336] el0t_64_sync_handler+0xcc/0xe4 [ 199.087648][ T6336] el0t_64_sync+0x1a0/0x1a4 [ 199.088972][ T6336] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 199.091091][ T6336] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 199.228065][ T6339] loop1: detected capacity change from 0 to 32768 [ 199.266543][ T6339] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 199.267748][ T6339] CPU: 0 PID: 6339 Comm: syz.1.556 Not tainted syzkaller #0 [ 199.268941][ T6339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 199.270511][ T6339] Call trace: [ 199.271034][ T6339] dump_backtrace+0x0/0x458 [ 199.271758][ T6339] show_stack+0x2c/0x3c [ 199.272439][ T6339] __dump_stack+0x30/0x40 [ 199.273138][ T6339] dump_stack_lvl+0xf4/0x15c [ 199.273881][ T6339] dump_stack+0x1c/0x5c [ 199.274561][ T6339] sysfs_create_dir_ns+0x244/0x264 [ 199.275519][ T6339] kobject_add_internal+0x594/0xc2c [ 199.276537][ T6339] kobject_init_and_add+0x128/0x194 [ 199.277456][ T6339] gfs2_sys_fs_add+0x208/0x428 [ 199.278387][ T6339] gfs2_fill_super+0xe20/0x1a9c [ 199.279274][ T6339] get_tree_bdev+0x35c/0x54c [ 199.280097][ T6339] gfs2_get_tree+0x58/0x1b8 [ 199.280903][ T6339] vfs_get_tree+0x90/0x278 [ 199.281666][ T6339] do_new_mount+0x228/0x804 [ 199.282469][ T6339] path_mount+0x57c/0xfe8 [ 199.283263][ T6339] __arm64_sys_mount+0x488/0x5f8 [ 199.284121][ T6339] invoke_syscall+0x98/0x28c [ 199.284965][ T6339] el0_svc_common+0x13c/0x258 [ 199.285729][ T6339] do_el0_svc+0x5c/0x140 [ 199.286419][ T6339] el0_svc+0x78/0x1d0 [ 199.287082][ T6339] el0t_64_sync_handler+0xcc/0xe4 [ 199.288061][ T6339] el0t_64_sync+0x1a0/0x1a4 [ 199.290841][ T6339] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 199.293107][ T6339] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 199.426788][ T6342] loop1: detected capacity change from 0 to 32768 [ 199.510259][ T6342] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 199.511497][ T6342] CPU: 0 PID: 6342 Comm: syz.1.557 Not tainted syzkaller #0 [ 199.512648][ T6342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 199.514292][ T6342] Call trace: [ 199.514815][ T6342] dump_backtrace+0x0/0x458 [ 199.515557][ T6342] show_stack+0x2c/0x3c [ 199.516255][ T6342] __dump_stack+0x30/0x40 [ 199.517029][ T6342] dump_stack_lvl+0xf4/0x15c [ 199.517797][ T6342] dump_stack+0x1c/0x5c [ 199.518565][ T6342] sysfs_create_dir_ns+0x244/0x264 [ 199.519464][ T6342] kobject_add_internal+0x594/0xc2c [ 199.520448][ T6342] kobject_init_and_add+0x128/0x194 [ 199.521378][ T6342] gfs2_sys_fs_add+0x208/0x428 [ 199.522166][ T6342] gfs2_fill_super+0xe20/0x1a9c [ 199.523068][ T6342] get_tree_bdev+0x35c/0x54c [ 199.523800][ T6342] gfs2_get_tree+0x58/0x1b8 [ 199.524513][ T6342] vfs_get_tree+0x90/0x278 [ 199.525236][ T6342] do_new_mount+0x228/0x804 [ 199.526018][ T6342] path_mount+0x57c/0xfe8 [ 199.526831][ T6342] __arm64_sys_mount+0x488/0x5f8 [ 199.527715][ T6342] invoke_syscall+0x98/0x28c [ 199.528539][ T6342] el0_svc_common+0x13c/0x258 [ 199.529694][ T6342] do_el0_svc+0x5c/0x140 [ 199.530419][ T6342] el0_svc+0x78/0x1d0 [ 199.531091][ T6342] el0t_64_sync_handler+0xcc/0xe4 [ 199.531883][ T6342] el0t_64_sync+0x1a0/0x1a4 [ 199.534117][ T6342] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 199.536270][ T6342] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 199.681241][ T6345] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 199.682673][ T6345] CPU: 1 PID: 6345 Comm: syz.1.558 Not tainted syzkaller #0 [ 199.683773][ T6345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 199.685199][ T6345] Call trace: [ 199.685722][ T6345] dump_backtrace+0x0/0x458 [ 199.686355][ T6345] show_stack+0x2c/0x3c [ 199.687002][ T6345] __dump_stack+0x30/0x40 [ 199.687764][ T6345] dump_stack_lvl+0xf4/0x15c [ 199.688491][ T6345] dump_stack+0x1c/0x5c [ 199.689190][ T6345] sysfs_create_dir_ns+0x244/0x264 [ 199.690118][ T6345] kobject_add_internal+0x594/0xc2c [ 199.690991][ T6345] kobject_init_and_add+0x128/0x194 [ 199.691890][ T6345] gfs2_sys_fs_add+0x208/0x428 [ 199.692662][ T6345] gfs2_fill_super+0xe20/0x1a9c [ 199.693585][ T6345] get_tree_bdev+0x35c/0x54c [ 199.694410][ T6345] gfs2_get_tree+0x58/0x1b8 [ 199.695174][ T6345] vfs_get_tree+0x90/0x278 [ 199.695844][ T6345] do_new_mount+0x228/0x804 [ 199.696578][ T6345] path_mount+0x57c/0xfe8 [ 199.697244][ T6345] __arm64_sys_mount+0x488/0x5f8 [ 199.698012][ T6345] invoke_syscall+0x98/0x28c [ 199.698779][ T6345] el0_svc_common+0x13c/0x258 [ 199.699496][ T6345] do_el0_svc+0x5c/0x140 [ 199.700176][ T6345] el0_svc+0x78/0x1d0 [ 199.700801][ T6345] el0t_64_sync_handler+0xcc/0xe4 [ 199.701616][ T6345] el0t_64_sync+0x1a0/0x1a4 [ 199.703845][ T6345] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 199.705831][ T6345] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 199.917480][ T6348] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 199.918661][ T6348] CPU: 0 PID: 6348 Comm: syz.1.559 Not tainted syzkaller #0 [ 199.919802][ T6348] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 199.921447][ T6348] Call trace: [ 199.921962][ T6348] dump_backtrace+0x0/0x458 [ 199.922740][ T6348] show_stack+0x2c/0x3c [ 199.923423][ T6348] __dump_stack+0x30/0x40 [ 199.924171][ T6348] dump_stack_lvl+0xf4/0x15c [ 199.924900][ T6348] dump_stack+0x1c/0x5c [ 199.925588][ T6348] sysfs_create_dir_ns+0x244/0x264 [ 199.926418][ T6348] kobject_add_internal+0x594/0xc2c [ 199.927230][ T6348] kobject_init_and_add+0x128/0x194 [ 199.928106][ T6348] gfs2_sys_fs_add+0x208/0x428 [ 199.928882][ T6348] gfs2_fill_super+0xe20/0x1a9c [ 199.929670][ T6348] get_tree_bdev+0x35c/0x54c [ 199.930458][ T6348] gfs2_get_tree+0x58/0x1b8 [ 199.931107][ T6348] vfs_get_tree+0x90/0x278 [ 199.931800][ T6348] do_new_mount+0x228/0x804 [ 199.932515][ T6348] path_mount+0x57c/0xfe8 [ 199.933180][ T6348] __arm64_sys_mount+0x488/0x5f8 [ 199.934009][ T6348] invoke_syscall+0x98/0x28c [ 199.934807][ T6348] el0_svc_common+0x13c/0x258 [ 199.935607][ T6348] do_el0_svc+0x5c/0x140 [ 199.936311][ T6348] el0_svc+0x78/0x1d0 [ 199.937000][ T6348] el0t_64_sync_handler+0xcc/0xe4 [ 199.937904][ T6348] el0t_64_sync+0x1a0/0x1a4 [ 199.940200][ T6348] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 199.942270][ T6348] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 200.088641][ T6351] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 200.089918][ T6351] CPU: 0 PID: 6351 Comm: syz.1.560 Not tainted syzkaller #0 [ 200.091123][ T6351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 200.092973][ T6351] Call trace: [ 200.093546][ T6351] dump_backtrace+0x0/0x458 [ 200.094284][ T6351] show_stack+0x2c/0x3c [ 200.095081][ T6351] __dump_stack+0x30/0x40 [ 200.095852][ T6351] dump_stack_lvl+0xf4/0x15c [ 200.096641][ T6351] dump_stack+0x1c/0x5c [ 200.097338][ T6351] sysfs_create_dir_ns+0x244/0x264 [ 200.098131][ T6351] kobject_add_internal+0x594/0xc2c [ 200.098995][ T6351] kobject_init_and_add+0x128/0x194 [ 200.099932][ T6351] gfs2_sys_fs_add+0x208/0x428 [ 200.100764][ T6351] gfs2_fill_super+0xe20/0x1a9c [ 200.101739][ T6351] get_tree_bdev+0x35c/0x54c [ 200.102618][ T6351] gfs2_get_tree+0x58/0x1b8 [ 200.103456][ T6351] vfs_get_tree+0x90/0x278 [ 200.104262][ T6351] do_new_mount+0x228/0x804 [ 200.105033][ T6351] path_mount+0x57c/0xfe8 [ 200.105738][ T6351] __arm64_sys_mount+0x488/0x5f8 [ 200.106511][ T6351] invoke_syscall+0x98/0x28c [ 200.107200][ T6351] el0_svc_common+0x13c/0x258 [ 200.107898][ T6351] do_el0_svc+0x5c/0x140 [ 200.108575][ T6351] el0_svc+0x78/0x1d0 [ 200.109253][ T6351] el0t_64_sync_handler+0xcc/0xe4 [ 200.110077][ T6351] el0t_64_sync+0x1a0/0x1a4 [ 200.113670][ T6351] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 200.115845][ T6351] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 200.260737][ T6354] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 200.261981][ T6354] CPU: 1 PID: 6354 Comm: syz.1.561 Not tainted syzkaller #0 [ 200.263247][ T6354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 200.265068][ T6354] Call trace: [ 200.265608][ T6354] dump_backtrace+0x0/0x458 [ 200.266425][ T6354] show_stack+0x2c/0x3c [ 200.267110][ T6354] __dump_stack+0x30/0x40 [ 200.267888][ T6354] dump_stack_lvl+0xf4/0x15c [ 200.268688][ T6354] dump_stack+0x1c/0x5c [ 200.269379][ T6354] sysfs_create_dir_ns+0x244/0x264 [ 200.270261][ T6354] kobject_add_internal+0x594/0xc2c [ 200.271155][ T6354] kobject_init_and_add+0x128/0x194 [ 200.272038][ T6354] gfs2_sys_fs_add+0x208/0x428 [ 200.272862][ T6354] gfs2_fill_super+0xe20/0x1a9c [ 200.273681][ T6354] get_tree_bdev+0x35c/0x54c [ 200.274422][ T6354] gfs2_get_tree+0x58/0x1b8 [ 200.275085][ T6354] vfs_get_tree+0x90/0x278 [ 200.275753][ T6354] do_new_mount+0x228/0x804 [ 200.276523][ T6354] path_mount+0x57c/0xfe8 [ 200.277338][ T6354] __arm64_sys_mount+0x488/0x5f8 [ 200.278208][ T6354] invoke_syscall+0x98/0x28c [ 200.278932][ T6354] el0_svc_common+0x13c/0x258 [ 200.279738][ T6354] do_el0_svc+0x5c/0x140 [ 200.280571][ T6354] el0_svc+0x78/0x1d0 [ 200.281286][ T6354] el0t_64_sync_handler+0xcc/0xe4 [ 200.282141][ T6354] el0t_64_sync+0x1a0/0x1a4 [ 200.283015][ T6354] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 200.284960][ T6354] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 200.429629][ T6357] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 200.430927][ T6357] CPU: 1 PID: 6357 Comm: syz.1.562 Not tainted syzkaller #0 [ 200.432080][ T6357] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 200.433724][ T6357] Call trace: [ 200.434331][ T6357] dump_backtrace+0x0/0x458 [ 200.435066][ T6357] show_stack+0x2c/0x3c [ 200.435777][ T6357] __dump_stack+0x30/0x40 [ 200.436558][ T6357] dump_stack_lvl+0xf4/0x15c [ 200.437365][ T6357] dump_stack+0x1c/0x5c [ 200.438127][ T6357] sysfs_create_dir_ns+0x244/0x264 [ 200.438993][ T6357] kobject_add_internal+0x594/0xc2c [ 200.439899][ T6357] kobject_init_and_add+0x128/0x194 [ 200.440855][ T6357] gfs2_sys_fs_add+0x208/0x428 [ 200.441668][ T6357] gfs2_fill_super+0xe20/0x1a9c [ 200.442563][ T6357] get_tree_bdev+0x35c/0x54c [ 200.443365][ T6357] gfs2_get_tree+0x58/0x1b8 [ 200.444131][ T6357] vfs_get_tree+0x90/0x278 [ 200.444864][ T6357] do_new_mount+0x228/0x804 [ 200.445618][ T6357] path_mount+0x57c/0xfe8 [ 200.446370][ T6357] __arm64_sys_mount+0x488/0x5f8 [ 200.447240][ T6357] invoke_syscall+0x98/0x28c [ 200.448073][ T6357] el0_svc_common+0x13c/0x258 [ 200.448837][ T6357] do_el0_svc+0x5c/0x140 [ 200.449615][ T6357] el0_svc+0x78/0x1d0 [ 200.450358][ T6357] el0t_64_sync_handler+0xcc/0xe4 [ 200.451228][ T6357] el0t_64_sync+0x1a0/0x1a4 [ 200.452208][ T6357] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 200.454365][ T6357] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 200.602667][ T6360] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 200.603872][ T6360] CPU: 0 PID: 6360 Comm: syz.1.563 Not tainted syzkaller #0 [ 200.605068][ T6360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 200.606873][ T6360] Call trace: [ 200.607453][ T6360] dump_backtrace+0x0/0x458 [ 200.608142][ T6360] show_stack+0x2c/0x3c [ 200.608766][ T6360] __dump_stack+0x30/0x40 [ 200.609485][ T6360] dump_stack_lvl+0xf4/0x15c [ 200.610227][ T6360] dump_stack+0x1c/0x5c [ 200.610853][ T6360] sysfs_create_dir_ns+0x244/0x264 [ 200.611703][ T6360] kobject_add_internal+0x594/0xc2c [ 200.612664][ T6360] kobject_init_and_add+0x128/0x194 [ 200.613539][ T6360] gfs2_sys_fs_add+0x208/0x428 [ 200.614247][ T6360] gfs2_fill_super+0xe20/0x1a9c [ 200.615102][ T6360] get_tree_bdev+0x35c/0x54c [ 200.616007][ T6360] gfs2_get_tree+0x58/0x1b8 [ 200.616750][ T6360] vfs_get_tree+0x90/0x278 [ 200.617473][ T6360] do_new_mount+0x228/0x804 [ 200.618219][ T6360] path_mount+0x57c/0xfe8 [ 200.618985][ T6360] __arm64_sys_mount+0x488/0x5f8 [ 200.619815][ T6360] invoke_syscall+0x98/0x28c [ 200.620563][ T6360] el0_svc_common+0x13c/0x258 [ 200.621399][ T6360] do_el0_svc+0x5c/0x140 [ 200.622176][ T6360] el0_svc+0x78/0x1d0 [ 200.622925][ T6360] el0t_64_sync_handler+0xcc/0xe4 [ 200.623826][ T6360] el0t_64_sync+0x1a0/0x1a4 [ 200.626284][ T6360] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 200.628491][ T6360] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 200.770074][ T6364] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 200.771476][ T6364] CPU: 1 PID: 6364 Comm: syz.1.564 Not tainted syzkaller #0 [ 200.772763][ T6364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 200.774489][ T6364] Call trace: [ 200.774992][ T6364] dump_backtrace+0x0/0x458 [ 200.775673][ T6364] show_stack+0x2c/0x3c [ 200.776342][ T6364] __dump_stack+0x30/0x40 [ 200.777026][ T6364] dump_stack_lvl+0xf4/0x15c [ 200.777737][ T6364] dump_stack+0x1c/0x5c [ 200.778390][ T6364] sysfs_create_dir_ns+0x244/0x264 [ 200.779179][ T6364] kobject_add_internal+0x594/0xc2c [ 200.780152][ T6364] kobject_init_and_add+0x128/0x194 [ 200.781065][ T6364] gfs2_sys_fs_add+0x208/0x428 [ 200.781819][ T6364] gfs2_fill_super+0xe20/0x1a9c [ 200.782564][ T6364] get_tree_bdev+0x35c/0x54c [ 200.783342][ T6364] gfs2_get_tree+0x58/0x1b8 [ 200.784126][ T6364] vfs_get_tree+0x90/0x278 [ 200.784892][ T6364] do_new_mount+0x228/0x804 [ 200.785761][ T6364] path_mount+0x57c/0xfe8 [ 200.786518][ T6364] __arm64_sys_mount+0x488/0x5f8 [ 200.787323][ T6364] invoke_syscall+0x98/0x28c [ 200.788182][ T6364] el0_svc_common+0x13c/0x258 [ 200.789021][ T6364] do_el0_svc+0x5c/0x140 [ 200.789696][ T6364] el0_svc+0x78/0x1d0 [ 200.790344][ T6364] el0t_64_sync_handler+0xcc/0xe4 [ 200.791139][ T6364] el0t_64_sync+0x1a0/0x1a4 [ 200.794731][ T6364] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 200.796792][ T6364] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 201.027785][ T6367] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 201.029092][ T6367] CPU: 1 PID: 6367 Comm: syz.1.565 Not tainted syzkaller #0 [ 201.030318][ T6367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 201.031932][ T6367] Call trace: [ 201.032458][ T6367] dump_backtrace+0x0/0x458 [ 201.033212][ T6367] show_stack+0x2c/0x3c [ 201.033898][ T6367] __dump_stack+0x30/0x40 [ 201.034653][ T6367] dump_stack_lvl+0xf4/0x15c [ 201.035433][ T6367] dump_stack+0x1c/0x5c [ 201.036098][ T6367] sysfs_create_dir_ns+0x244/0x264 [ 201.036989][ T6367] kobject_add_internal+0x594/0xc2c [ 201.037899][ T6367] kobject_init_and_add+0x128/0x194 [ 201.038806][ T6367] gfs2_sys_fs_add+0x208/0x428 [ 201.039603][ T6367] gfs2_fill_super+0xe20/0x1a9c [ 201.040423][ T6367] get_tree_bdev+0x35c/0x54c [ 201.041169][ T6367] gfs2_get_tree+0x58/0x1b8 [ 201.041889][ T6367] vfs_get_tree+0x90/0x278 [ 201.042623][ T6367] do_new_mount+0x228/0x804 [ 201.043342][ T6367] path_mount+0x57c/0xfe8 [ 201.044040][ T6367] __arm64_sys_mount+0x488/0x5f8 [ 201.044887][ T6367] invoke_syscall+0x98/0x28c [ 201.045701][ T6367] el0_svc_common+0x13c/0x258 [ 201.046503][ T6367] do_el0_svc+0x5c/0x140 [ 201.047183][ T6367] el0_svc+0x78/0x1d0 [ 201.047927][ T6367] el0t_64_sync_handler+0xcc/0xe4 [ 201.048855][ T6367] el0t_64_sync+0x1a0/0x1a4 [ 201.051197][ T6367] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 201.053483][ T6367] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 201.195329][ T6370] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 201.196633][ T6370] CPU: 1 PID: 6370 Comm: syz.1.566 Not tainted syzkaller #0 [ 201.197762][ T6370] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 201.199344][ T6370] Call trace: [ 201.199912][ T6370] dump_backtrace+0x0/0x458 [ 201.200623][ T6370] show_stack+0x2c/0x3c [ 201.201396][ T6370] __dump_stack+0x30/0x40 [ 201.202160][ T6370] dump_stack_lvl+0xf4/0x15c [ 201.202906][ T6370] dump_stack+0x1c/0x5c [ 201.203563][ T6370] sysfs_create_dir_ns+0x244/0x264 [ 201.204462][ T6370] kobject_add_internal+0x594/0xc2c [ 201.205318][ T6370] kobject_init_and_add+0x128/0x194 [ 201.206134][ T6370] gfs2_sys_fs_add+0x208/0x428 [ 201.206915][ T6370] gfs2_fill_super+0xe20/0x1a9c [ 201.207670][ T6370] get_tree_bdev+0x35c/0x54c [ 201.208355][ T6370] gfs2_get_tree+0x58/0x1b8 [ 201.209188][ T6370] vfs_get_tree+0x90/0x278 [ 201.209962][ T6370] do_new_mount+0x228/0x804 [ 201.210741][ T6370] path_mount+0x57c/0xfe8 [ 201.211490][ T6370] __arm64_sys_mount+0x488/0x5f8 [ 201.212221][ T6370] invoke_syscall+0x98/0x28c [ 201.212996][ T6370] el0_svc_common+0x13c/0x258 [ 201.213716][ T6370] do_el0_svc+0x5c/0x140 [ 201.214378][ T6370] el0_svc+0x78/0x1d0 [ 201.214969][ T6370] el0t_64_sync_handler+0xcc/0xe4 [ 201.215848][ T6370] el0t_64_sync+0x1a0/0x1a4 [ 201.220089][ T6370] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 201.221969][ T6370] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 201.363660][ T6374] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 201.364919][ T6374] CPU: 0 PID: 6374 Comm: syz.1.567 Not tainted syzkaller #0 [ 201.366206][ T6374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 201.367742][ T6374] Call trace: [ 201.368288][ T6374] dump_backtrace+0x0/0x458 [ 201.368943][ T6374] show_stack+0x2c/0x3c [ 201.369530][ T6374] __dump_stack+0x30/0x40 [ 201.370258][ T6374] dump_stack_lvl+0xf4/0x15c [ 201.370930][ T6374] dump_stack+0x1c/0x5c [ 201.371596][ T6374] sysfs_create_dir_ns+0x244/0x264 [ 201.372526][ T6374] kobject_add_internal+0x594/0xc2c [ 201.373380][ T6374] kobject_init_and_add+0x128/0x194 [ 201.374287][ T6374] gfs2_sys_fs_add+0x208/0x428 [ 201.375066][ T6374] gfs2_fill_super+0xe20/0x1a9c [ 201.375911][ T6374] get_tree_bdev+0x35c/0x54c [ 201.376713][ T6374] gfs2_get_tree+0x58/0x1b8 [ 201.377576][ T6374] vfs_get_tree+0x90/0x278 [ 201.378454][ T6374] do_new_mount+0x228/0x804 [ 201.379223][ T6374] path_mount+0x57c/0xfe8 [ 201.379927][ T6374] __arm64_sys_mount+0x488/0x5f8 [ 201.380731][ T6374] invoke_syscall+0x98/0x28c [ 201.381434][ T6374] el0_svc_common+0x13c/0x258 [ 201.382172][ T6374] do_el0_svc+0x5c/0x140 [ 201.382797][ T6374] el0_svc+0x78/0x1d0 [ 201.383407][ T6374] el0t_64_sync_handler+0xcc/0xe4 [ 201.384199][ T6374] el0t_64_sync+0x1a0/0x1a4 [ 201.386290][ T6374] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 201.388239][ T6374] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 201.558673][ T6377] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 201.559892][ T6377] CPU: 1 PID: 6377 Comm: syz.1.568 Not tainted syzkaller #0 [ 201.561020][ T6377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 201.562653][ T6377] Call trace: [ 201.563160][ T6377] dump_backtrace+0x0/0x458 [ 201.563851][ T6377] show_stack+0x2c/0x3c [ 201.564536][ T6377] __dump_stack+0x30/0x40 [ 201.565173][ T6377] dump_stack_lvl+0xf4/0x15c [ 201.566069][ T6377] dump_stack+0x1c/0x5c [ 201.566825][ T6377] sysfs_create_dir_ns+0x244/0x264 [ 201.567608][ T6377] kobject_add_internal+0x594/0xc2c [ 201.568488][ T6377] kobject_init_and_add+0x128/0x194 [ 201.569282][ T6377] gfs2_sys_fs_add+0x208/0x428 [ 201.570073][ T6377] gfs2_fill_super+0xe20/0x1a9c [ 201.570887][ T6377] get_tree_bdev+0x35c/0x54c [ 201.571643][ T6377] gfs2_get_tree+0x58/0x1b8 [ 201.572371][ T6377] vfs_get_tree+0x90/0x278 [ 201.573067][ T6377] do_new_mount+0x228/0x804 [ 201.573958][ T6377] path_mount+0x57c/0xfe8 [ 201.574651][ T6377] __arm64_sys_mount+0x488/0x5f8 [ 201.575425][ T6377] invoke_syscall+0x98/0x28c [ 201.576111][ T6377] el0_svc_common+0x13c/0x258 [ 201.576864][ T6377] do_el0_svc+0x5c/0x140 [ 201.577533][ T6377] el0_svc+0x78/0x1d0 [ 201.578140][ T6377] el0t_64_sync_handler+0xcc/0xe4 [ 201.578977][ T6377] el0t_64_sync+0x1a0/0x1a4 [ 201.581097][ T6377] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 201.583081][ T6377] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 201.758317][ T6381] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 201.759536][ T6381] CPU: 0 PID: 6381 Comm: syz.1.569 Not tainted syzkaller #0 [ 201.760608][ T6381] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 201.762155][ T6381] Call trace: [ 201.762702][ T6381] dump_backtrace+0x0/0x458 [ 201.763406][ T6381] show_stack+0x2c/0x3c [ 201.764057][ T6381] __dump_stack+0x30/0x40 [ 201.764708][ T6381] dump_stack_lvl+0xf4/0x15c [ 201.765367][ T6381] dump_stack+0x1c/0x5c [ 201.765987][ T6381] sysfs_create_dir_ns+0x244/0x264 [ 201.766797][ T6381] kobject_add_internal+0x594/0xc2c [ 201.767639][ T6381] kobject_init_and_add+0x128/0x194 [ 201.768426][ T6381] gfs2_sys_fs_add+0x208/0x428 [ 201.769173][ T6381] gfs2_fill_super+0xe20/0x1a9c [ 201.769892][ T6381] get_tree_bdev+0x35c/0x54c [ 201.770619][ T6381] gfs2_get_tree+0x58/0x1b8 [ 201.771306][ T6381] vfs_get_tree+0x90/0x278 [ 201.771941][ T6381] do_new_mount+0x228/0x804 [ 201.772653][ T6381] path_mount+0x57c/0xfe8 [ 201.773340][ T6381] __arm64_sys_mount+0x488/0x5f8 [ 201.774123][ T6381] invoke_syscall+0x98/0x28c [ 201.774780][ T6381] el0_svc_common+0x13c/0x258 [ 201.775558][ T6381] do_el0_svc+0x5c/0x140 [ 201.776221][ T6381] el0_svc+0x78/0x1d0 [ 201.776850][ T6381] el0t_64_sync_handler+0xcc/0xe4 [ 201.777610][ T6381] el0t_64_sync+0x1a0/0x1a4 [ 201.779445][ T6381] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 201.781363][ T6381] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 201.963376][ T6384] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 201.964658][ T6384] CPU: 1 PID: 6384 Comm: syz.1.570 Not tainted syzkaller #0 [ 201.965866][ T6384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 201.967398][ T6384] Call trace: [ 201.967915][ T6384] dump_backtrace+0x0/0x458 [ 201.968680][ T6384] show_stack+0x2c/0x3c [ 201.969279][ T6384] __dump_stack+0x30/0x40 [ 201.970004][ T6384] dump_stack_lvl+0xf4/0x15c [ 201.970723][ T6384] dump_stack+0x1c/0x5c [ 201.971376][ T6384] sysfs_create_dir_ns+0x244/0x264 [ 201.972176][ T6384] kobject_add_internal+0x594/0xc2c [ 201.972930][ T6384] kobject_init_and_add+0x128/0x194 [ 201.973738][ T6384] gfs2_sys_fs_add+0x208/0x428 [ 201.974621][ T6384] gfs2_fill_super+0xe20/0x1a9c [ 201.975549][ T6384] get_tree_bdev+0x35c/0x54c [ 201.976316][ T6384] gfs2_get_tree+0x58/0x1b8 [ 201.976993][ T6384] vfs_get_tree+0x90/0x278 [ 201.977803][ T6384] do_new_mount+0x228/0x804 [ 201.978518][ T6384] path_mount+0x57c/0xfe8 [ 201.979289][ T6384] __arm64_sys_mount+0x488/0x5f8 [ 201.980060][ T6384] invoke_syscall+0x98/0x28c [ 201.980775][ T6384] el0_svc_common+0x13c/0x258 [ 201.981476][ T6384] do_el0_svc+0x5c/0x140 [ 201.982182][ T6384] el0_svc+0x78/0x1d0 [ 201.982863][ T6384] el0t_64_sync_handler+0xcc/0xe4 [ 201.983667][ T6384] el0t_64_sync+0x1a0/0x1a4 [ 201.985985][ T6384] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 201.987954][ T6384] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 202.136543][ T6387] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 202.137883][ T6387] CPU: 1 PID: 6387 Comm: syz.1.571 Not tainted syzkaller #0 [ 202.139015][ T6387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 202.140598][ T6387] Call trace: [ 202.141069][ T6387] dump_backtrace+0x0/0x458 [ 202.141774][ T6387] show_stack+0x2c/0x3c [ 202.142406][ T6387] __dump_stack+0x30/0x40 [ 202.143079][ T6387] dump_stack_lvl+0xf4/0x15c [ 202.143779][ T6387] dump_stack+0x1c/0x5c [ 202.144376][ T6387] sysfs_create_dir_ns+0x244/0x264 [ 202.145170][ T6387] kobject_add_internal+0x594/0xc2c [ 202.145953][ T6387] kobject_init_and_add+0x128/0x194 [ 202.146722][ T6387] gfs2_sys_fs_add+0x208/0x428 [ 202.147390][ T6387] gfs2_fill_super+0xe20/0x1a9c [ 202.148132][ T6387] get_tree_bdev+0x35c/0x54c [ 202.148856][ T6387] gfs2_get_tree+0x58/0x1b8 [ 202.149540][ T6387] vfs_get_tree+0x90/0x278 [ 202.150245][ T6387] do_new_mount+0x228/0x804 [ 202.150991][ T6387] path_mount+0x57c/0xfe8 [ 202.151613][ T6387] __arm64_sys_mount+0x488/0x5f8 [ 202.152398][ T6387] invoke_syscall+0x98/0x28c [ 202.153146][ T6387] el0_svc_common+0x13c/0x258 [ 202.153860][ T6387] do_el0_svc+0x5c/0x140 [ 202.154535][ T6387] el0_svc+0x78/0x1d0 [ 202.155202][ T6387] el0t_64_sync_handler+0xcc/0xe4 [ 202.156034][ T6387] el0t_64_sync+0x1a0/0x1a4 [ 202.158506][ T6387] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 202.160533][ T6387] gfs2: fsid=__&+[$!: error -17 adding sysfs files 1970/01/01 00:03:22 executed programs: 558 [ 202.398159][ T6390] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 202.399361][ T6390] CPU: 1 PID: 6390 Comm: syz.1.572 Not tainted syzkaller #0 [ 202.400506][ T6390] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 202.401944][ T6390] Call trace: [ 202.402455][ T6390] dump_backtrace+0x0/0x458 [ 202.403151][ T6390] show_stack+0x2c/0x3c [ 202.403789][ T6390] __dump_stack+0x30/0x40 [ 202.404383][ T6390] dump_stack_lvl+0xf4/0x15c [ 202.404999][ T6390] dump_stack+0x1c/0x5c [ 202.405607][ T6390] sysfs_create_dir_ns+0x244/0x264 [ 202.406434][ T6390] kobject_add_internal+0x594/0xc2c [ 202.407267][ T6390] kobject_init_and_add+0x128/0x194 [ 202.408151][ T6390] gfs2_sys_fs_add+0x208/0x428 [ 202.408934][ T6390] gfs2_fill_super+0xe20/0x1a9c [ 202.409700][ T6390] get_tree_bdev+0x35c/0x54c [ 202.410433][ T6390] gfs2_get_tree+0x58/0x1b8 [ 202.411184][ T6390] vfs_get_tree+0x90/0x278 [ 202.411902][ T6390] do_new_mount+0x228/0x804 [ 202.412622][ T6390] path_mount+0x57c/0xfe8 [ 202.413394][ T6390] __arm64_sys_mount+0x488/0x5f8 [ 202.414161][ T6390] invoke_syscall+0x98/0x28c [ 202.414928][ T6390] el0_svc_common+0x13c/0x258 [ 202.415653][ T6390] do_el0_svc+0x5c/0x140 [ 202.416314][ T6390] el0_svc+0x78/0x1d0 [ 202.416922][ T6390] el0t_64_sync_handler+0xcc/0xe4 [ 202.417792][ T6390] el0t_64_sync+0x1a0/0x1a4 [ 202.420168][ T6390] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 202.422277][ T6390] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 202.552961][ T6393] set_capacity_and_notify: 15 callbacks suppressed [ 202.552970][ T6393] loop1: detected capacity change from 0 to 32768 [ 202.603221][ T6393] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 202.604376][ T6393] CPU: 1 PID: 6393 Comm: syz.1.573 Not tainted syzkaller #0 [ 202.605492][ T6393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 202.607013][ T6393] Call trace: [ 202.607445][ T6393] dump_backtrace+0x0/0x458 [ 202.608086][ T6393] show_stack+0x2c/0x3c [ 202.608721][ T6393] __dump_stack+0x30/0x40 [ 202.609383][ T6393] dump_stack_lvl+0xf4/0x15c [ 202.610067][ T6393] dump_stack+0x1c/0x5c [ 202.610674][ T6393] sysfs_create_dir_ns+0x244/0x264 [ 202.611377][ T6393] kobject_add_internal+0x594/0xc2c [ 202.612187][ T6393] kobject_init_and_add+0x128/0x194 [ 202.612977][ T6393] gfs2_sys_fs_add+0x208/0x428 [ 202.613704][ T6393] gfs2_fill_super+0xe20/0x1a9c [ 202.614443][ T6393] get_tree_bdev+0x35c/0x54c [ 202.615189][ T6393] gfs2_get_tree+0x58/0x1b8 [ 202.615877][ T6393] vfs_get_tree+0x90/0x278 [ 202.616565][ T6393] do_new_mount+0x228/0x804 [ 202.617291][ T6393] path_mount+0x57c/0xfe8 [ 202.617919][ T6393] __arm64_sys_mount+0x488/0x5f8 [ 202.618712][ T6393] invoke_syscall+0x98/0x28c [ 202.619405][ T6393] el0_svc_common+0x13c/0x258 [ 202.620153][ T6393] do_el0_svc+0x5c/0x140 [ 202.620746][ T6393] el0_svc+0x78/0x1d0 [ 202.621351][ T6393] el0t_64_sync_handler+0xcc/0xe4 [ 202.622142][ T6393] el0t_64_sync+0x1a0/0x1a4 [ 202.624415][ T6393] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 202.626369][ T6393] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 202.810228][ T6397] loop1: detected capacity change from 0 to 32768 [ 202.848501][ T6397] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 202.850110][ T6397] CPU: 0 PID: 6397 Comm: syz.1.574 Not tainted syzkaller #0 [ 202.851263][ T6397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 202.852923][ T6397] Call trace: [ 202.853455][ T6397] dump_backtrace+0x0/0x458 [ 202.854178][ T6397] show_stack+0x2c/0x3c [ 202.854788][ T6397] __dump_stack+0x30/0x40 [ 202.855577][ T6397] dump_stack_lvl+0xf4/0x15c [ 202.856470][ T6397] dump_stack+0x1c/0x5c [ 202.857191][ T6397] sysfs_create_dir_ns+0x244/0x264 [ 202.858121][ T6397] kobject_add_internal+0x594/0xc2c [ 202.859045][ T6397] kobject_init_and_add+0x128/0x194 [ 202.859925][ T6397] gfs2_sys_fs_add+0x208/0x428 [ 202.860705][ T6397] gfs2_fill_super+0xe20/0x1a9c [ 202.861492][ T6397] get_tree_bdev+0x35c/0x54c [ 202.862247][ T6397] gfs2_get_tree+0x58/0x1b8 [ 202.862897][ T6397] vfs_get_tree+0x90/0x278 [ 202.863594][ T6397] do_new_mount+0x228/0x804 [ 202.864337][ T6397] path_mount+0x57c/0xfe8 [ 202.865088][ T6397] __arm64_sys_mount+0x488/0x5f8 [ 202.865846][ T6397] invoke_syscall+0x98/0x28c [ 202.866526][ T6397] el0_svc_common+0x13c/0x258 [ 202.867281][ T6397] do_el0_svc+0x5c/0x140 [ 202.867951][ T6397] el0_svc+0x78/0x1d0 [ 202.868558][ T6397] el0t_64_sync_handler+0xcc/0xe4 [ 202.869288][ T6397] el0t_64_sync+0x1a0/0x1a4 [ 202.871854][ T6397] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 202.875938][ T6397] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 203.014422][ T6401] loop1: detected capacity change from 0 to 32768 [ 203.053608][ T6401] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 203.054779][ T6401] CPU: 1 PID: 6401 Comm: syz.1.575 Not tainted syzkaller #0 [ 203.055770][ T6401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 203.057274][ T6401] Call trace: [ 203.057739][ T6401] dump_backtrace+0x0/0x458 [ 203.058442][ T6401] show_stack+0x2c/0x3c [ 203.059000][ T6401] __dump_stack+0x30/0x40 [ 203.059667][ T6401] dump_stack_lvl+0xf4/0x15c [ 203.060351][ T6401] dump_stack+0x1c/0x5c [ 203.060933][ T6401] sysfs_create_dir_ns+0x244/0x264 [ 203.061698][ T6401] kobject_add_internal+0x594/0xc2c [ 203.062457][ T6401] kobject_init_and_add+0x128/0x194 [ 203.063269][ T6401] gfs2_sys_fs_add+0x208/0x428 [ 203.063943][ T6401] gfs2_fill_super+0xe20/0x1a9c [ 203.064655][ T6401] get_tree_bdev+0x35c/0x54c [ 203.065434][ T6401] gfs2_get_tree+0x58/0x1b8 [ 203.066174][ T6401] vfs_get_tree+0x90/0x278 [ 203.066934][ T6401] do_new_mount+0x228/0x804 [ 203.067677][ T6401] path_mount+0x57c/0xfe8 [ 203.068330][ T6401] __arm64_sys_mount+0x488/0x5f8 [ 203.069178][ T6401] invoke_syscall+0x98/0x28c [ 203.069828][ T6401] el0_svc_common+0x13c/0x258 [ 203.070519][ T6401] do_el0_svc+0x5c/0x140 [ 203.071255][ T6401] el0_svc+0x78/0x1d0 [ 203.071923][ T6401] el0t_64_sync_handler+0xcc/0xe4 [ 203.072646][ T6401] el0t_64_sync+0x1a0/0x1a4 [ 203.076619][ T6401] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 203.078625][ T6401] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 203.217318][ T6405] loop1: detected capacity change from 0 to 32768 [ 203.330843][ T6405] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 203.335007][ T6405] CPU: 0 PID: 6405 Comm: syz.1.576 Not tainted syzkaller #0 [ 203.336013][ T6405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 203.337380][ T6405] Call trace: [ 203.337834][ T6405] dump_backtrace+0x0/0x458 [ 203.338581][ T6405] show_stack+0x2c/0x3c [ 203.339316][ T6405] __dump_stack+0x30/0x40 [ 203.340058][ T6405] dump_stack_lvl+0xf4/0x15c [ 203.340798][ T6405] dump_stack+0x1c/0x5c [ 203.341499][ T6405] sysfs_create_dir_ns+0x244/0x264 [ 203.342323][ T6405] kobject_add_internal+0x594/0xc2c [ 203.343141][ T6405] kobject_init_and_add+0x128/0x194 [ 203.344099][ T6405] gfs2_sys_fs_add+0x208/0x428 [ 203.344876][ T6405] gfs2_fill_super+0xe20/0x1a9c [ 203.345666][ T6405] get_tree_bdev+0x35c/0x54c [ 203.346525][ T6405] gfs2_get_tree+0x58/0x1b8 [ 203.347313][ T6405] vfs_get_tree+0x90/0x278 [ 203.348076][ T6405] do_new_mount+0x228/0x804 [ 203.348956][ T6405] path_mount+0x57c/0xfe8 [ 203.349824][ T6405] __arm64_sys_mount+0x488/0x5f8 [ 203.350812][ T6405] invoke_syscall+0x98/0x28c [ 203.351722][ T6405] el0_svc_common+0x13c/0x258 [ 203.352610][ T6405] do_el0_svc+0x5c/0x140 [ 203.353381][ T6405] el0_svc+0x78/0x1d0 [ 203.354133][ T6405] el0t_64_sync_handler+0xcc/0xe4 [ 203.354935][ T6405] el0t_64_sync+0x1a0/0x1a4 [ 203.357160][ T6405] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 203.359121][ T6405] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 203.498510][ T6408] loop1: detected capacity change from 0 to 32768 [ 203.506449][ T6408] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 203.507682][ T6408] CPU: 1 PID: 6408 Comm: syz.1.577 Not tainted syzkaller #0 [ 203.508710][ T6408] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 203.510239][ T6408] Call trace: [ 203.510704][ T6408] dump_backtrace+0x0/0x458 [ 203.511444][ T6408] show_stack+0x2c/0x3c [ 203.512106][ T6408] __dump_stack+0x30/0x40 [ 203.512868][ T6408] dump_stack_lvl+0xf4/0x15c [ 203.513618][ T6408] dump_stack+0x1c/0x5c [ 203.514229][ T6408] sysfs_create_dir_ns+0x244/0x264 [ 203.515010][ T6408] kobject_add_internal+0x594/0xc2c [ 203.515820][ T6408] kobject_init_and_add+0x128/0x194 [ 203.516578][ T6408] gfs2_sys_fs_add+0x208/0x428 [ 203.517378][ T6408] gfs2_fill_super+0xe20/0x1a9c [ 203.518246][ T6408] get_tree_bdev+0x35c/0x54c [ 203.519061][ T6408] gfs2_get_tree+0x58/0x1b8 [ 203.519794][ T6408] vfs_get_tree+0x90/0x278 [ 203.520524][ T6408] do_new_mount+0x228/0x804 [ 203.521248][ T6408] path_mount+0x57c/0xfe8 [ 203.522099][ T6408] __arm64_sys_mount+0x488/0x5f8 [ 203.523085][ T6408] invoke_syscall+0x98/0x28c [ 203.523833][ T6408] el0_svc_common+0x13c/0x258 [ 203.524550][ T6408] do_el0_svc+0x5c/0x140 [ 203.525178][ T6408] el0_svc+0x78/0x1d0 [ 203.525804][ T6408] el0t_64_sync_handler+0xcc/0xe4 [ 203.526658][ T6408] el0t_64_sync+0x1a0/0x1a4 [ 203.527511][ T6408] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 203.529518][ T6408] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 203.671913][ T6411] loop1: detected capacity change from 0 to 32768 [ 203.733687][ T6411] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 203.735170][ T6411] CPU: 0 PID: 6411 Comm: syz.1.578 Not tainted syzkaller #0 [ 203.736349][ T6411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 203.737799][ T6411] Call trace: [ 203.738265][ T6411] dump_backtrace+0x0/0x458 [ 203.738952][ T6411] show_stack+0x2c/0x3c [ 203.739585][ T6411] __dump_stack+0x30/0x40 [ 203.740262][ T6411] dump_stack_lvl+0xf4/0x15c [ 203.740950][ T6411] dump_stack+0x1c/0x5c [ 203.741565][ T6411] sysfs_create_dir_ns+0x244/0x264 [ 203.742469][ T6411] kobject_add_internal+0x594/0xc2c [ 203.743326][ T6411] kobject_init_and_add+0x128/0x194 [ 203.744152][ T6411] gfs2_sys_fs_add+0x208/0x428 [ 203.744845][ T6411] gfs2_fill_super+0xe20/0x1a9c [ 203.745609][ T6411] get_tree_bdev+0x35c/0x54c [ 203.746317][ T6411] gfs2_get_tree+0x58/0x1b8 [ 203.747026][ T6411] vfs_get_tree+0x90/0x278 [ 203.747736][ T6411] do_new_mount+0x228/0x804 [ 203.748458][ T6411] path_mount+0x57c/0xfe8 [ 203.749147][ T6411] __arm64_sys_mount+0x488/0x5f8 [ 203.749910][ T6411] invoke_syscall+0x98/0x28c [ 203.750703][ T6411] el0_svc_common+0x13c/0x258 [ 203.751573][ T6411] do_el0_svc+0x5c/0x140 [ 203.752303][ T6411] el0_svc+0x78/0x1d0 [ 203.752945][ T6411] el0t_64_sync_handler+0xcc/0xe4 [ 203.753738][ T6411] el0t_64_sync+0x1a0/0x1a4 [ 203.756664][ T6411] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 203.758645][ T6411] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 203.894858][ T6414] loop1: detected capacity change from 0 to 32768 [ 203.903505][ T6414] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 203.904569][ T6414] CPU: 1 PID: 6414 Comm: syz.1.579 Not tainted syzkaller #0 [ 203.905651][ T6414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 203.907250][ T6414] Call trace: [ 203.907767][ T6414] dump_backtrace+0x0/0x458 [ 203.908434][ T6414] show_stack+0x2c/0x3c [ 203.909099][ T6414] __dump_stack+0x30/0x40 [ 203.909768][ T6414] dump_stack_lvl+0xf4/0x15c [ 203.910479][ T6414] dump_stack+0x1c/0x5c [ 203.911075][ T6414] sysfs_create_dir_ns+0x244/0x264 [ 203.911827][ T6414] kobject_add_internal+0x594/0xc2c [ 203.912660][ T6414] kobject_init_and_add+0x128/0x194 [ 203.913424][ T6414] gfs2_sys_fs_add+0x208/0x428 [ 203.914135][ T6414] gfs2_fill_super+0xe20/0x1a9c [ 203.914865][ T6414] get_tree_bdev+0x35c/0x54c [ 203.915597][ T6414] gfs2_get_tree+0x58/0x1b8 [ 203.916319][ T6414] vfs_get_tree+0x90/0x278 [ 203.917002][ T6414] do_new_mount+0x228/0x804 [ 203.917713][ T6414] path_mount+0x57c/0xfe8 [ 203.918439][ T6414] __arm64_sys_mount+0x488/0x5f8 [ 203.919222][ T6414] invoke_syscall+0x98/0x28c [ 203.919899][ T6414] el0_svc_common+0x13c/0x258 [ 203.920586][ T6414] do_el0_svc+0x5c/0x140 [ 203.921264][ T6414] el0_svc+0x78/0x1d0 [ 203.921837][ T6414] el0t_64_sync_handler+0xcc/0xe4 [ 203.922557][ T6414] el0t_64_sync+0x1a0/0x1a4 [ 203.924900][ T6414] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 203.926870][ T6414] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 204.060395][ T6417] loop1: detected capacity change from 0 to 32768 [ 204.093489][ T6417] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 204.094811][ T6417] CPU: 0 PID: 6417 Comm: syz.1.580 Not tainted syzkaller #0 [ 204.095976][ T6417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 204.097516][ T6417] Call trace: [ 204.098030][ T6417] dump_backtrace+0x0/0x458 [ 204.098728][ T6417] show_stack+0x2c/0x3c [ 204.099384][ T6417] __dump_stack+0x30/0x40 [ 204.100166][ T6417] dump_stack_lvl+0xf4/0x15c [ 204.100943][ T6417] dump_stack+0x1c/0x5c [ 204.101608][ T6417] sysfs_create_dir_ns+0x244/0x264 [ 204.102453][ T6417] kobject_add_internal+0x594/0xc2c [ 204.103274][ T6417] kobject_init_and_add+0x128/0x194 [ 204.104115][ T6417] gfs2_sys_fs_add+0x208/0x428 [ 204.104841][ T6417] gfs2_fill_super+0xe20/0x1a9c [ 204.105649][ T6417] get_tree_bdev+0x35c/0x54c [ 204.106362][ T6417] gfs2_get_tree+0x58/0x1b8 [ 204.107076][ T6417] vfs_get_tree+0x90/0x278 [ 204.107778][ T6417] do_new_mount+0x228/0x804 [ 204.108469][ T6417] path_mount+0x57c/0xfe8 [ 204.109181][ T6417] __arm64_sys_mount+0x488/0x5f8 [ 204.109965][ T6417] invoke_syscall+0x98/0x28c [ 204.110764][ T6417] el0_svc_common+0x13c/0x258 [ 204.111490][ T6417] do_el0_svc+0x5c/0x140 [ 204.112178][ T6417] el0_svc+0x78/0x1d0 [ 204.112754][ T6417] el0t_64_sync_handler+0xcc/0xe4 [ 204.113527][ T6417] el0t_64_sync+0x1a0/0x1a4 [ 204.114949][ T6417] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 204.117064][ T6417] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 204.250013][ T6420] loop1: detected capacity change from 0 to 32768 [ 204.326738][ T6420] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 204.327917][ T6420] CPU: 1 PID: 6420 Comm: syz.1.581 Not tainted syzkaller #0 [ 204.329082][ T6420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 204.330501][ T6420] Call trace: [ 204.330968][ T6420] dump_backtrace+0x0/0x458 [ 204.331613][ T6420] show_stack+0x2c/0x3c [ 204.332210][ T6420] __dump_stack+0x30/0x40 [ 204.332852][ T6420] dump_stack_lvl+0xf4/0x15c [ 204.333636][ T6420] dump_stack+0x1c/0x5c [ 204.334302][ T6420] sysfs_create_dir_ns+0x244/0x264 [ 204.335138][ T6420] kobject_add_internal+0x594/0xc2c [ 204.335894][ T6420] kobject_init_and_add+0x128/0x194 [ 204.336756][ T6420] gfs2_sys_fs_add+0x208/0x428 [ 204.337670][ T6420] gfs2_fill_super+0xe20/0x1a9c [ 204.338482][ T6420] get_tree_bdev+0x35c/0x54c [ 204.339272][ T6420] gfs2_get_tree+0x58/0x1b8 [ 204.339975][ T6420] vfs_get_tree+0x90/0x278 [ 204.340648][ T6420] do_new_mount+0x228/0x804 [ 204.341305][ T6420] path_mount+0x57c/0xfe8 [ 204.341900][ T6420] __arm64_sys_mount+0x488/0x5f8 [ 204.342658][ T6420] invoke_syscall+0x98/0x28c [ 204.343429][ T6420] el0_svc_common+0x13c/0x258 [ 204.344177][ T6420] do_el0_svc+0x5c/0x140 [ 204.344917][ T6420] el0_svc+0x78/0x1d0 [ 204.345503][ T6420] el0t_64_sync_handler+0xcc/0xe4 [ 204.346283][ T6420] el0t_64_sync+0x1a0/0x1a4 [ 204.348533][ T6420] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 204.350367][ T6420] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 204.488273][ T6423] loop1: detected capacity change from 0 to 32768 [ 204.573221][ T6423] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 204.574513][ T6423] CPU: 0 PID: 6423 Comm: syz.1.582 Not tainted syzkaller #0 [ 204.575634][ T6423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 204.577220][ T6423] Call trace: [ 204.577793][ T6423] dump_backtrace+0x0/0x458 [ 204.578531][ T6423] show_stack+0x2c/0x3c [ 204.579198][ T6423] __dump_stack+0x30/0x40 [ 204.579858][ T6423] dump_stack_lvl+0xf4/0x15c [ 204.580616][ T6423] dump_stack+0x1c/0x5c [ 204.581310][ T6423] sysfs_create_dir_ns+0x244/0x264 [ 204.582175][ T6423] kobject_add_internal+0x594/0xc2c [ 204.583091][ T6423] kobject_init_and_add+0x128/0x194 [ 204.584015][ T6423] gfs2_sys_fs_add+0x208/0x428 [ 204.584871][ T6423] gfs2_fill_super+0xe20/0x1a9c [ 204.585704][ T6423] get_tree_bdev+0x35c/0x54c [ 204.586535][ T6423] gfs2_get_tree+0x58/0x1b8 [ 204.587346][ T6423] vfs_get_tree+0x90/0x278 [ 204.588184][ T6423] do_new_mount+0x228/0x804 [ 204.588997][ T6423] path_mount+0x57c/0xfe8 [ 204.589810][ T6423] __arm64_sys_mount+0x488/0x5f8 [ 204.590681][ T6423] invoke_syscall+0x98/0x28c [ 204.591385][ T6423] el0_svc_common+0x13c/0x258 [ 204.592104][ T6423] do_el0_svc+0x5c/0x140 [ 204.592876][ T6423] el0_svc+0x78/0x1d0 [ 204.593530][ T6423] el0t_64_sync_handler+0xcc/0xe4 [ 204.594398][ T6423] el0t_64_sync+0x1a0/0x1a4 [ 204.595560][ T6423] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 204.597647][ T6423] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 204.750191][ T6426] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 204.751548][ T6426] CPU: 0 PID: 6426 Comm: syz.1.583 Not tainted syzkaller #0 [ 204.752732][ T6426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 204.754263][ T6426] Call trace: [ 204.754822][ T6426] dump_backtrace+0x0/0x458 [ 204.755589][ T6426] show_stack+0x2c/0x3c [ 204.756242][ T6426] __dump_stack+0x30/0x40 [ 204.756926][ T6426] dump_stack_lvl+0xf4/0x15c [ 204.757691][ T6426] dump_stack+0x1c/0x5c [ 204.758344][ T6426] sysfs_create_dir_ns+0x244/0x264 [ 204.759235][ T6426] kobject_add_internal+0x594/0xc2c [ 204.760115][ T6426] kobject_init_and_add+0x128/0x194 [ 204.760982][ T6426] gfs2_sys_fs_add+0x208/0x428 [ 204.761844][ T6426] gfs2_fill_super+0xe20/0x1a9c [ 204.762721][ T6426] get_tree_bdev+0x35c/0x54c [ 204.763515][ T6426] gfs2_get_tree+0x58/0x1b8 [ 204.764288][ T6426] vfs_get_tree+0x90/0x278 [ 204.765068][ T6426] do_new_mount+0x228/0x804 [ 204.765894][ T6426] path_mount+0x57c/0xfe8 [ 204.766642][ T6426] __arm64_sys_mount+0x488/0x5f8 [ 204.767599][ T6426] invoke_syscall+0x98/0x28c [ 204.768495][ T6426] el0_svc_common+0x13c/0x258 [ 204.769314][ T6426] do_el0_svc+0x5c/0x140 [ 204.770047][ T6426] el0_svc+0x78/0x1d0 [ 204.770711][ T6426] el0t_64_sync_handler+0xcc/0xe4 [ 204.771542][ T6426] el0t_64_sync+0x1a0/0x1a4 [ 204.774961][ T6426] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 204.777067][ T6426] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 204.921790][ T6429] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 204.923143][ T6429] CPU: 1 PID: 6429 Comm: syz.1.584 Not tainted syzkaller #0 [ 204.924222][ T6429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 204.925641][ T6429] Call trace: [ 204.926119][ T6429] dump_backtrace+0x0/0x458 [ 204.926758][ T6429] show_stack+0x2c/0x3c [ 204.927318][ T6429] __dump_stack+0x30/0x40 [ 204.927962][ T6429] dump_stack_lvl+0xf4/0x15c [ 204.928618][ T6429] dump_stack+0x1c/0x5c [ 204.929275][ T6429] sysfs_create_dir_ns+0x244/0x264 [ 204.930104][ T6429] kobject_add_internal+0x594/0xc2c [ 204.930868][ T6429] kobject_init_and_add+0x128/0x194 [ 204.931632][ T6429] gfs2_sys_fs_add+0x208/0x428 [ 204.932364][ T6429] gfs2_fill_super+0xe20/0x1a9c [ 204.933114][ T6429] get_tree_bdev+0x35c/0x54c [ 204.933852][ T6429] gfs2_get_tree+0x58/0x1b8 [ 204.934526][ T6429] vfs_get_tree+0x90/0x278 [ 204.935185][ T6429] do_new_mount+0x228/0x804 [ 204.935891][ T6429] path_mount+0x57c/0xfe8 [ 204.936633][ T6429] __arm64_sys_mount+0x488/0x5f8 [ 204.937399][ T6429] invoke_syscall+0x98/0x28c [ 204.938090][ T6429] el0_svc_common+0x13c/0x258 [ 204.938847][ T6429] do_el0_svc+0x5c/0x140 [ 204.939502][ T6429] el0_svc+0x78/0x1d0 [ 204.940147][ T6429] el0t_64_sync_handler+0xcc/0xe4 [ 204.940936][ T6429] el0t_64_sync+0x1a0/0x1a4 [ 204.944419][ T6429] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 204.946315][ T6429] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 205.117819][ T6432] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 205.119159][ T6432] CPU: 0 PID: 6432 Comm: syz.1.585 Not tainted syzkaller #0 [ 205.120317][ T6432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 205.121993][ T6432] Call trace: [ 205.122472][ T6432] dump_backtrace+0x0/0x458 [ 205.123172][ T6432] show_stack+0x2c/0x3c [ 205.123825][ T6432] __dump_stack+0x30/0x40 [ 205.124501][ T6432] dump_stack_lvl+0xf4/0x15c [ 205.125227][ T6432] dump_stack+0x1c/0x5c [ 205.125901][ T6432] sysfs_create_dir_ns+0x244/0x264 [ 205.126716][ T6432] kobject_add_internal+0x594/0xc2c [ 205.127563][ T6432] kobject_init_and_add+0x128/0x194 [ 205.128393][ T6432] gfs2_sys_fs_add+0x208/0x428 [ 205.129156][ T6432] gfs2_fill_super+0xe20/0x1a9c [ 205.129964][ T6432] get_tree_bdev+0x35c/0x54c [ 205.130755][ T6432] gfs2_get_tree+0x58/0x1b8 [ 205.131456][ T6432] vfs_get_tree+0x90/0x278 [ 205.132096][ T6432] do_new_mount+0x228/0x804 [ 205.132865][ T6432] path_mount+0x57c/0xfe8 [ 205.133521][ T6432] __arm64_sys_mount+0x488/0x5f8 [ 205.134373][ T6432] invoke_syscall+0x98/0x28c [ 205.135128][ T6432] el0_svc_common+0x13c/0x258 [ 205.135851][ T6432] do_el0_svc+0x5c/0x140 [ 205.136472][ T6432] el0_svc+0x78/0x1d0 [ 205.137108][ T6432] el0t_64_sync_handler+0xcc/0xe4 [ 205.137940][ T6432] el0t_64_sync+0x1a0/0x1a4 [ 205.140217][ T6432] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 205.142462][ T6432] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 205.294386][ T6435] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 205.295658][ T6435] CPU: 0 PID: 6435 Comm: syz.1.586 Not tainted syzkaller #0 [ 205.296774][ T6435] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 205.298322][ T6435] Call trace: [ 205.298836][ T6435] dump_backtrace+0x0/0x458 [ 205.299638][ T6435] show_stack+0x2c/0x3c [ 205.300387][ T6435] __dump_stack+0x30/0x40 [ 205.301135][ T6435] dump_stack_lvl+0xf4/0x15c [ 205.301943][ T6435] dump_stack+0x1c/0x5c [ 205.302624][ T6435] sysfs_create_dir_ns+0x244/0x264 [ 205.303576][ T6435] kobject_add_internal+0x594/0xc2c [ 205.304525][ T6435] kobject_init_and_add+0x128/0x194 [ 205.305402][ T6435] gfs2_sys_fs_add+0x208/0x428 [ 205.306207][ T6435] gfs2_fill_super+0xe20/0x1a9c [ 205.307000][ T6435] get_tree_bdev+0x35c/0x54c [ 205.307767][ T6435] gfs2_get_tree+0x58/0x1b8 [ 205.308522][ T6435] vfs_get_tree+0x90/0x278 [ 205.309147][ T6435] do_new_mount+0x228/0x804 [ 205.309892][ T6435] path_mount+0x57c/0xfe8 [ 205.310580][ T6435] __arm64_sys_mount+0x488/0x5f8 [ 205.311333][ T6435] invoke_syscall+0x98/0x28c [ 205.312165][ T6435] el0_svc_common+0x13c/0x258 [ 205.312949][ T6435] do_el0_svc+0x5c/0x140 [ 205.313664][ T6435] el0_svc+0x78/0x1d0 [ 205.314323][ T6435] el0t_64_sync_handler+0xcc/0xe4 [ 205.315068][ T6435] el0t_64_sync+0x1a0/0x1a4 [ 205.317228][ T6435] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 205.319040][ T6435] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 205.466757][ T6438] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 205.468135][ T6438] CPU: 0 PID: 6438 Comm: syz.1.587 Not tainted syzkaller #0 [ 205.469316][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 205.470823][ T6438] Call trace: [ 205.471346][ T6438] dump_backtrace+0x0/0x458 [ 205.472068][ T6438] show_stack+0x2c/0x3c [ 205.472727][ T6438] __dump_stack+0x30/0x40 [ 205.473368][ T6438] dump_stack_lvl+0xf4/0x15c [ 205.474137][ T6438] dump_stack+0x1c/0x5c [ 205.474789][ T6438] sysfs_create_dir_ns+0x244/0x264 [ 205.475610][ T6438] kobject_add_internal+0x594/0xc2c [ 205.476401][ T6438] kobject_init_and_add+0x128/0x194 [ 205.477180][ T6438] gfs2_sys_fs_add+0x208/0x428 [ 205.477895][ T6438] gfs2_fill_super+0xe20/0x1a9c [ 205.478623][ T6438] get_tree_bdev+0x35c/0x54c [ 205.479366][ T6438] gfs2_get_tree+0x58/0x1b8 [ 205.480044][ T6438] vfs_get_tree+0x90/0x278 [ 205.480729][ T6438] do_new_mount+0x228/0x804 [ 205.481458][ T6438] path_mount+0x57c/0xfe8 [ 205.482114][ T6438] __arm64_sys_mount+0x488/0x5f8 [ 205.482832][ T6438] invoke_syscall+0x98/0x28c [ 205.483503][ T6438] el0_svc_common+0x13c/0x258 [ 205.484276][ T6438] do_el0_svc+0x5c/0x140 [ 205.484958][ T6438] el0_svc+0x78/0x1d0 [ 205.485662][ T6438] el0t_64_sync_handler+0xcc/0xe4 [ 205.486507][ T6438] el0t_64_sync+0x1a0/0x1a4 [ 205.489561][ T6438] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 205.491502][ T6438] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 205.634645][ T6441] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 205.635913][ T6441] CPU: 1 PID: 6441 Comm: syz.1.588 Not tainted syzkaller #0 [ 205.637068][ T6441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 205.638547][ T6441] Call trace: [ 205.639045][ T6441] dump_backtrace+0x0/0x458 [ 205.639641][ T6441] show_stack+0x2c/0x3c [ 205.640211][ T6441] __dump_stack+0x30/0x40 [ 205.640812][ T6441] dump_stack_lvl+0xf4/0x15c [ 205.641416][ T6441] dump_stack+0x1c/0x5c [ 205.642023][ T6441] sysfs_create_dir_ns+0x244/0x264 [ 205.642779][ T6441] kobject_add_internal+0x594/0xc2c [ 205.643545][ T6441] kobject_init_and_add+0x128/0x194 [ 205.644391][ T6441] gfs2_sys_fs_add+0x208/0x428 [ 205.645253][ T6441] gfs2_fill_super+0xe20/0x1a9c [ 205.646084][ T6441] get_tree_bdev+0x35c/0x54c [ 205.646929][ T6441] gfs2_get_tree+0x58/0x1b8 [ 205.647756][ T6441] vfs_get_tree+0x90/0x278 [ 205.648446][ T6441] do_new_mount+0x228/0x804 [ 205.649200][ T6441] path_mount+0x57c/0xfe8 [ 205.649854][ T6441] __arm64_sys_mount+0x488/0x5f8 [ 205.650703][ T6441] invoke_syscall+0x98/0x28c [ 205.651383][ T6441] el0_svc_common+0x13c/0x258 [ 205.652206][ T6441] do_el0_svc+0x5c/0x140 [ 205.652896][ T6441] el0_svc+0x78/0x1d0 [ 205.653527][ T6441] el0t_64_sync_handler+0xcc/0xe4 [ 205.654273][ T6441] el0t_64_sync+0x1a0/0x1a4 [ 205.657731][ T6441] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 205.659674][ T6441] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 205.843490][ T6444] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 205.844683][ T6444] CPU: 0 PID: 6444 Comm: syz.1.589 Not tainted syzkaller #0 [ 205.845729][ T6444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 205.847273][ T6444] Call trace: [ 205.847758][ T6444] dump_backtrace+0x0/0x458 [ 205.848424][ T6444] show_stack+0x2c/0x3c [ 205.849042][ T6444] __dump_stack+0x30/0x40 [ 205.849677][ T6444] dump_stack_lvl+0xf4/0x15c [ 205.850293][ T6444] dump_stack+0x1c/0x5c [ 205.850991][ T6444] sysfs_create_dir_ns+0x244/0x264 [ 205.851760][ T6444] kobject_add_internal+0x594/0xc2c [ 205.852521][ T6444] kobject_init_and_add+0x128/0x194 [ 205.853334][ T6444] gfs2_sys_fs_add+0x208/0x428 [ 205.854081][ T6444] gfs2_fill_super+0xe20/0x1a9c [ 205.854833][ T6444] get_tree_bdev+0x35c/0x54c [ 205.855566][ T6444] gfs2_get_tree+0x58/0x1b8 [ 205.856265][ T6444] vfs_get_tree+0x90/0x278 [ 205.856986][ T6444] do_new_mount+0x228/0x804 [ 205.857721][ T6444] path_mount+0x57c/0xfe8 [ 205.858386][ T6444] __arm64_sys_mount+0x488/0x5f8 [ 205.859184][ T6444] invoke_syscall+0x98/0x28c [ 205.859926][ T6444] el0_svc_common+0x13c/0x258 [ 205.860718][ T6444] do_el0_svc+0x5c/0x140 [ 205.861469][ T6444] el0_svc+0x78/0x1d0 [ 205.862184][ T6444] el0t_64_sync_handler+0xcc/0xe4 [ 205.863045][ T6444] el0t_64_sync+0x1a0/0x1a4 [ 205.863871][ T6444] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 205.865738][ T6444] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 206.038309][ T6447] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 206.039530][ T6447] CPU: 0 PID: 6447 Comm: syz.1.590 Not tainted syzkaller #0 [ 206.040728][ T6447] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 206.042383][ T6447] Call trace: [ 206.042898][ T6447] dump_backtrace+0x0/0x458 [ 206.043656][ T6447] show_stack+0x2c/0x3c [ 206.044329][ T6447] __dump_stack+0x30/0x40 [ 206.045104][ T6447] dump_stack_lvl+0xf4/0x15c [ 206.045846][ T6447] dump_stack+0x1c/0x5c [ 206.046572][ T6447] sysfs_create_dir_ns+0x244/0x264 [ 206.047383][ T6447] kobject_add_internal+0x594/0xc2c [ 206.048211][ T6447] kobject_init_and_add+0x128/0x194 [ 206.049047][ T6447] gfs2_sys_fs_add+0x208/0x428 [ 206.049797][ T6447] gfs2_fill_super+0xe20/0x1a9c [ 206.050587][ T6447] get_tree_bdev+0x35c/0x54c [ 206.051285][ T6447] gfs2_get_tree+0x58/0x1b8 [ 206.052033][ T6447] vfs_get_tree+0x90/0x278 [ 206.052765][ T6447] do_new_mount+0x228/0x804 [ 206.053492][ T6447] path_mount+0x57c/0xfe8 [ 206.054168][ T6447] __arm64_sys_mount+0x488/0x5f8 [ 206.054920][ T6447] invoke_syscall+0x98/0x28c [ 206.055657][ T6447] el0_svc_common+0x13c/0x258 [ 206.056418][ T6447] do_el0_svc+0x5c/0x140 [ 206.057058][ T6447] el0_svc+0x78/0x1d0 [ 206.057676][ T6447] el0t_64_sync_handler+0xcc/0xe4 [ 206.058518][ T6447] el0t_64_sync+0x1a0/0x1a4 [ 206.061764][ T6447] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 206.063971][ T6447] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 206.258845][ T6450] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 206.260264][ T6450] CPU: 1 PID: 6450 Comm: syz.1.591 Not tainted syzkaller #0 [ 206.261387][ T6450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 206.262901][ T6450] Call trace: [ 206.263404][ T6450] dump_backtrace+0x0/0x458 [ 206.264113][ T6450] show_stack+0x2c/0x3c [ 206.264755][ T6450] __dump_stack+0x30/0x40 [ 206.265403][ T6450] dump_stack_lvl+0xf4/0x15c [ 206.266129][ T6450] dump_stack+0x1c/0x5c [ 206.266785][ T6450] sysfs_create_dir_ns+0x244/0x264 [ 206.267572][ T6450] kobject_add_internal+0x594/0xc2c [ 206.268384][ T6450] kobject_init_and_add+0x128/0x194 [ 206.269218][ T6450] gfs2_sys_fs_add+0x208/0x428 [ 206.270001][ T6450] gfs2_fill_super+0xe20/0x1a9c [ 206.270729][ T6450] get_tree_bdev+0x35c/0x54c [ 206.271509][ T6450] gfs2_get_tree+0x58/0x1b8 [ 206.272245][ T6450] vfs_get_tree+0x90/0x278 [ 206.272913][ T6450] do_new_mount+0x228/0x804 [ 206.273636][ T6450] path_mount+0x57c/0xfe8 [ 206.274307][ T6450] __arm64_sys_mount+0x488/0x5f8 [ 206.275074][ T6450] invoke_syscall+0x98/0x28c [ 206.275960][ T6450] el0_svc_common+0x13c/0x258 [ 206.276827][ T6450] do_el0_svc+0x5c/0x140 [ 206.277473][ T6450] el0_svc+0x78/0x1d0 [ 206.278201][ T6450] el0t_64_sync_handler+0xcc/0xe4 [ 206.279112][ T6450] el0t_64_sync+0x1a0/0x1a4 [ 206.280697][ T6450] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 206.283456][ T6450] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 206.425594][ T6453] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 206.426725][ T6453] CPU: 0 PID: 6453 Comm: syz.1.592 Not tainted syzkaller #0 [ 206.427859][ T6453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 206.429575][ T6453] Call trace: [ 206.430110][ T6453] dump_backtrace+0x0/0x458 [ 206.430857][ T6453] show_stack+0x2c/0x3c [ 206.431528][ T6453] __dump_stack+0x30/0x40 [ 206.432179][ T6453] dump_stack_lvl+0xf4/0x15c [ 206.432972][ T6453] dump_stack+0x1c/0x5c [ 206.433571][ T6453] sysfs_create_dir_ns+0x244/0x264 [ 206.434323][ T6453] kobject_add_internal+0x594/0xc2c [ 206.435132][ T6453] kobject_init_and_add+0x128/0x194 [ 206.435937][ T6453] gfs2_sys_fs_add+0x208/0x428 [ 206.436654][ T6453] gfs2_fill_super+0xe20/0x1a9c [ 206.437405][ T6453] get_tree_bdev+0x35c/0x54c [ 206.438188][ T6453] gfs2_get_tree+0x58/0x1b8 [ 206.438938][ T6453] vfs_get_tree+0x90/0x278 [ 206.439635][ T6453] do_new_mount+0x228/0x804 [ 206.440348][ T6453] path_mount+0x57c/0xfe8 [ 206.441038][ T6453] __arm64_sys_mount+0x488/0x5f8 [ 206.441881][ T6453] invoke_syscall+0x98/0x28c [ 206.442674][ T6453] el0_svc_common+0x13c/0x258 [ 206.443395][ T6453] do_el0_svc+0x5c/0x140 [ 206.444080][ T6453] el0_svc+0x78/0x1d0 [ 206.444758][ T6453] el0t_64_sync_handler+0xcc/0xe4 [ 206.445593][ T6453] el0t_64_sync+0x1a0/0x1a4 [ 206.446449][ T6453] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 206.448480][ T6453] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 206.748063][ T6456] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 206.749200][ T6456] CPU: 0 PID: 6456 Comm: syz.1.593 Not tainted syzkaller #0 [ 206.750394][ T6456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 206.751844][ T6456] Call trace: [ 206.752394][ T6456] dump_backtrace+0x0/0x458 [ 206.753173][ T6456] show_stack+0x2c/0x3c [ 206.753952][ T6456] __dump_stack+0x30/0x40 [ 206.754705][ T6456] dump_stack_lvl+0xf4/0x15c [ 206.755521][ T6456] dump_stack+0x1c/0x5c [ 206.756208][ T6456] sysfs_create_dir_ns+0x244/0x264 [ 206.757087][ T6456] kobject_add_internal+0x594/0xc2c [ 206.758007][ T6456] kobject_init_and_add+0x128/0x194 [ 206.758928][ T6456] gfs2_sys_fs_add+0x208/0x428 [ 206.759752][ T6456] gfs2_fill_super+0xe20/0x1a9c [ 206.760550][ T6456] get_tree_bdev+0x35c/0x54c [ 206.761310][ T6456] gfs2_get_tree+0x58/0x1b8 [ 206.762023][ T6456] vfs_get_tree+0x90/0x278 [ 206.762812][ T6456] do_new_mount+0x228/0x804 [ 206.763652][ T6456] path_mount+0x57c/0xfe8 [ 206.764387][ T6456] __arm64_sys_mount+0x488/0x5f8 [ 206.765291][ T6456] invoke_syscall+0x98/0x28c [ 206.766059][ T6456] el0_svc_common+0x13c/0x258 [ 206.766920][ T6456] do_el0_svc+0x5c/0x140 [ 206.767640][ T6456] el0_svc+0x78/0x1d0 [ 206.768315][ T6456] el0t_64_sync_handler+0xcc/0xe4 [ 206.769188][ T6456] el0t_64_sync+0x1a0/0x1a4 [ 206.770380][ T6456] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 206.772523][ T6456] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 206.947823][ T6459] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 206.949176][ T6459] CPU: 1 PID: 6459 Comm: syz.1.594 Not tainted syzkaller #0 [ 206.950345][ T6459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 206.951892][ T6459] Call trace: [ 206.952384][ T6459] dump_backtrace+0x0/0x458 [ 206.953118][ T6459] show_stack+0x2c/0x3c [ 206.953733][ T6459] __dump_stack+0x30/0x40 [ 206.954445][ T6459] dump_stack_lvl+0xf4/0x15c [ 206.955132][ T6459] dump_stack+0x1c/0x5c [ 206.955785][ T6459] sysfs_create_dir_ns+0x244/0x264 [ 206.956592][ T6459] kobject_add_internal+0x594/0xc2c [ 206.957377][ T6459] kobject_init_and_add+0x128/0x194 [ 206.958223][ T6459] gfs2_sys_fs_add+0x208/0x428 [ 206.958929][ T6459] gfs2_fill_super+0xe20/0x1a9c [ 206.959672][ T6459] get_tree_bdev+0x35c/0x54c [ 206.960374][ T6459] gfs2_get_tree+0x58/0x1b8 [ 206.961040][ T6459] vfs_get_tree+0x90/0x278 [ 206.961712][ T6459] do_new_mount+0x228/0x804 [ 206.962420][ T6459] path_mount+0x57c/0xfe8 [ 206.963106][ T6459] __arm64_sys_mount+0x488/0x5f8 [ 206.963889][ T6459] invoke_syscall+0x98/0x28c [ 206.964608][ T6459] el0_svc_common+0x13c/0x258 [ 206.965412][ T6459] do_el0_svc+0x5c/0x140 [ 206.966102][ T6459] el0_svc+0x78/0x1d0 [ 206.966772][ T6459] el0t_64_sync_handler+0xcc/0xe4 [ 206.967509][ T6459] el0t_64_sync+0x1a0/0x1a4 [ 206.969825][ T6459] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 206.971693][ T6459] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 207.147117][ T6462] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 207.148273][ T6462] CPU: 1 PID: 6462 Comm: syz.1.595 Not tainted syzkaller #0 [ 207.149367][ T6462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 207.150878][ T6462] Call trace: [ 207.151330][ T6462] dump_backtrace+0x0/0x458 [ 207.151952][ T6462] show_stack+0x2c/0x3c [ 207.152643][ T6462] __dump_stack+0x30/0x40 [ 207.153360][ T6462] dump_stack_lvl+0xf4/0x15c [ 207.154080][ T6462] dump_stack+0x1c/0x5c [ 207.154711][ T6462] sysfs_create_dir_ns+0x244/0x264 [ 207.155517][ T6462] kobject_add_internal+0x594/0xc2c [ 207.156307][ T6462] kobject_init_and_add+0x128/0x194 [ 207.157157][ T6462] gfs2_sys_fs_add+0x208/0x428 [ 207.158093][ T6462] gfs2_fill_super+0xe20/0x1a9c [ 207.158943][ T6462] get_tree_bdev+0x35c/0x54c [ 207.159679][ T6462] gfs2_get_tree+0x58/0x1b8 [ 207.160376][ T6462] vfs_get_tree+0x90/0x278 [ 207.161065][ T6462] do_new_mount+0x228/0x804 [ 207.161772][ T6462] path_mount+0x57c/0xfe8 [ 207.162508][ T6462] __arm64_sys_mount+0x488/0x5f8 [ 207.163285][ T6462] invoke_syscall+0x98/0x28c [ 207.163988][ T6462] el0_svc_common+0x13c/0x258 [ 207.164725][ T6462] do_el0_svc+0x5c/0x140 [ 207.165352][ T6462] el0_svc+0x78/0x1d0 [ 207.165943][ T6462] el0t_64_sync_handler+0xcc/0xe4 [ 207.166690][ T6462] el0t_64_sync+0x1a0/0x1a4 [ 207.168819][ T6462] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 207.170832][ T6462] gfs2: fsid=__&+[$!: error -17 adding sysfs files 1970/01/01 00:03:27 executed programs: 582 [ 207.373729][ T6465] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 207.374910][ T6465] CPU: 1 PID: 6465 Comm: syz.1.596 Not tainted syzkaller #0 [ 207.375996][ T6465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 207.377616][ T6465] Call trace: [ 207.378119][ T6465] dump_backtrace+0x0/0x458 [ 207.378777][ T6465] show_stack+0x2c/0x3c [ 207.379360][ T6465] __dump_stack+0x30/0x40 [ 207.380056][ T6465] dump_stack_lvl+0xf4/0x15c [ 207.380755][ T6465] dump_stack+0x1c/0x5c [ 207.381370][ T6465] sysfs_create_dir_ns+0x244/0x264 [ 207.382190][ T6465] kobject_add_internal+0x594/0xc2c [ 207.383032][ T6465] kobject_init_and_add+0x128/0x194 [ 207.383804][ T6465] gfs2_sys_fs_add+0x208/0x428 [ 207.384536][ T6465] gfs2_fill_super+0xe20/0x1a9c [ 207.385284][ T6465] get_tree_bdev+0x35c/0x54c [ 207.386045][ T6465] gfs2_get_tree+0x58/0x1b8 [ 207.386868][ T6465] vfs_get_tree+0x90/0x278 [ 207.387558][ T6465] do_new_mount+0x228/0x804 [ 207.388233][ T6465] path_mount+0x57c/0xfe8 [ 207.388886][ T6465] __arm64_sys_mount+0x488/0x5f8 [ 207.389621][ T6465] invoke_syscall+0x98/0x28c [ 207.390354][ T6465] el0_svc_common+0x13c/0x258 [ 207.391078][ T6465] do_el0_svc+0x5c/0x140 [ 207.391754][ T6465] el0_svc+0x78/0x1d0 [ 207.392346][ T6465] el0t_64_sync_handler+0xcc/0xe4 [ 207.393119][ T6465] el0t_64_sync+0x1a0/0x1a4 [ 207.394753][ T6465] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 207.396770][ T6465] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 207.542485][ T6468] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 207.543752][ T6468] CPU: 1 PID: 6468 Comm: syz.1.597 Not tainted syzkaller #0 [ 207.544884][ T6468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 207.546418][ T6468] Call trace: [ 207.546900][ T6468] dump_backtrace+0x0/0x458 [ 207.547534][ T6468] show_stack+0x2c/0x3c [ 207.548162][ T6468] __dump_stack+0x30/0x40 [ 207.548799][ T6468] dump_stack_lvl+0xf4/0x15c [ 207.549488][ T6468] dump_stack+0x1c/0x5c [ 207.550131][ T6468] sysfs_create_dir_ns+0x244/0x264 [ 207.550863][ T6468] kobject_add_internal+0x594/0xc2c [ 207.551644][ T6468] kobject_init_and_add+0x128/0x194 [ 207.552465][ T6468] gfs2_sys_fs_add+0x208/0x428 [ 207.553222][ T6468] gfs2_fill_super+0xe20/0x1a9c [ 207.553966][ T6468] get_tree_bdev+0x35c/0x54c [ 207.554641][ T6468] gfs2_get_tree+0x58/0x1b8 [ 207.555336][ T6468] vfs_get_tree+0x90/0x278 [ 207.556034][ T6468] do_new_mount+0x228/0x804 [ 207.556738][ T6468] path_mount+0x57c/0xfe8 [ 207.557411][ T6468] __arm64_sys_mount+0x488/0x5f8 [ 207.558205][ T6468] invoke_syscall+0x98/0x28c [ 207.558917][ T6468] el0_svc_common+0x13c/0x258 [ 207.559633][ T6468] do_el0_svc+0x5c/0x140 [ 207.560345][ T6468] el0_svc+0x78/0x1d0 [ 207.560915][ T6468] el0t_64_sync_handler+0xcc/0xe4 [ 207.561673][ T6468] el0t_64_sync+0x1a0/0x1a4 [ 207.565249][ T6468] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 207.567195][ T6468] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 207.751120][ T6471] set_capacity_and_notify: 15 callbacks suppressed [ 207.751130][ T6471] loop1: detected capacity change from 0 to 32768 [ 207.759920][ T6471] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 207.761055][ T6471] CPU: 0 PID: 6471 Comm: syz.1.598 Not tainted syzkaller #0 [ 207.762215][ T6471] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 207.763734][ T6471] Call trace: [ 207.764279][ T6471] dump_backtrace+0x0/0x458 [ 207.765009][ T6471] show_stack+0x2c/0x3c [ 207.765665][ T6471] __dump_stack+0x30/0x40 [ 207.766389][ T6471] dump_stack_lvl+0xf4/0x15c [ 207.767147][ T6471] dump_stack+0x1c/0x5c [ 207.767838][ T6471] sysfs_create_dir_ns+0x244/0x264 [ 207.768602][ T6471] kobject_add_internal+0x594/0xc2c [ 207.769370][ T6471] kobject_init_and_add+0x128/0x194 [ 207.770166][ T6471] gfs2_sys_fs_add+0x208/0x428 [ 207.770846][ T6471] gfs2_fill_super+0xe20/0x1a9c [ 207.771525][ T6471] get_tree_bdev+0x35c/0x54c [ 207.772169][ T6471] gfs2_get_tree+0x58/0x1b8 [ 207.772922][ T6471] vfs_get_tree+0x90/0x278 [ 207.773614][ T6471] do_new_mount+0x228/0x804 [ 207.774321][ T6471] path_mount+0x57c/0xfe8 [ 207.775034][ T6471] __arm64_sys_mount+0x488/0x5f8 [ 207.775855][ T6471] invoke_syscall+0x98/0x28c [ 207.776595][ T6471] el0_svc_common+0x13c/0x258 [ 207.777366][ T6471] do_el0_svc+0x5c/0x140 [ 207.777985][ T6471] el0_svc+0x78/0x1d0 [ 207.778618][ T6471] el0t_64_sync_handler+0xcc/0xe4 [ 207.779343][ T6471] el0t_64_sync+0x1a0/0x1a4 [ 207.780524][ T6471] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 207.782999][ T6471] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 207.918620][ T6474] loop1: detected capacity change from 0 to 32768 [ 207.957867][ T6474] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 207.959009][ T6474] CPU: 1 PID: 6474 Comm: syz.1.599 Not tainted syzkaller #0 [ 207.960058][ T6474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 207.961548][ T6474] Call trace: [ 207.962032][ T6474] dump_backtrace+0x0/0x458 [ 207.962681][ T6474] show_stack+0x2c/0x3c [ 207.963287][ T6474] __dump_stack+0x30/0x40 [ 207.963961][ T6474] dump_stack_lvl+0xf4/0x15c [ 207.964609][ T6474] dump_stack+0x1c/0x5c [ 207.965274][ T6474] sysfs_create_dir_ns+0x244/0x264 [ 207.966065][ T6474] kobject_add_internal+0x594/0xc2c [ 207.966886][ T6474] kobject_init_and_add+0x128/0x194 [ 207.967659][ T6474] gfs2_sys_fs_add+0x208/0x428 [ 207.968436][ T6474] gfs2_fill_super+0xe20/0x1a9c [ 207.969171][ T6474] get_tree_bdev+0x35c/0x54c [ 207.970070][ T6474] gfs2_get_tree+0x58/0x1b8 [ 207.970912][ T6474] vfs_get_tree+0x90/0x278 [ 207.971613][ T6474] do_new_mount+0x228/0x804 [ 207.972313][ T6474] path_mount+0x57c/0xfe8 [ 207.972988][ T6474] __arm64_sys_mount+0x488/0x5f8 [ 207.973722][ T6474] invoke_syscall+0x98/0x28c [ 207.974424][ T6474] el0_svc_common+0x13c/0x258 [ 207.975137][ T6474] do_el0_svc+0x5c/0x140 [ 207.975818][ T6474] el0_svc+0x78/0x1d0 [ 207.976402][ T6474] el0t_64_sync_handler+0xcc/0xe4 [ 207.977229][ T6474] el0t_64_sync+0x1a0/0x1a4 [ 207.978227][ T6474] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 207.980205][ T6474] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 208.115088][ T6477] loop1: detected capacity change from 0 to 32768 [ 208.158195][ T6477] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 208.159406][ T6477] CPU: 1 PID: 6477 Comm: syz.1.600 Not tainted syzkaller #0 [ 208.160467][ T6477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 208.161918][ T6477] Call trace: [ 208.162447][ T6477] dump_backtrace+0x0/0x458 [ 208.163144][ T6477] show_stack+0x2c/0x3c [ 208.163764][ T6477] __dump_stack+0x30/0x40 [ 208.164447][ T6477] dump_stack_lvl+0xf4/0x15c [ 208.165171][ T6477] dump_stack+0x1c/0x5c [ 208.165897][ T6477] sysfs_create_dir_ns+0x244/0x264 [ 208.166675][ T6477] kobject_add_internal+0x594/0xc2c [ 208.167470][ T6477] kobject_init_and_add+0x128/0x194 [ 208.168289][ T6477] gfs2_sys_fs_add+0x208/0x428 [ 208.169030][ T6477] gfs2_fill_super+0xe20/0x1a9c [ 208.169771][ T6477] get_tree_bdev+0x35c/0x54c [ 208.170494][ T6477] gfs2_get_tree+0x58/0x1b8 [ 208.171229][ T6477] vfs_get_tree+0x90/0x278 [ 208.171886][ T6477] do_new_mount+0x228/0x804 [ 208.172587][ T6477] path_mount+0x57c/0xfe8 [ 208.173296][ T6477] __arm64_sys_mount+0x488/0x5f8 [ 208.174059][ T6477] invoke_syscall+0x98/0x28c [ 208.174762][ T6477] el0_svc_common+0x13c/0x258 [ 208.175668][ T6477] do_el0_svc+0x5c/0x140 [ 208.176271][ T6477] el0_svc+0x78/0x1d0 [ 208.176858][ T6477] el0t_64_sync_handler+0xcc/0xe4 [ 208.177637][ T6477] el0t_64_sync+0x1a0/0x1a4 [ 208.179861][ T6477] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 208.181704][ T6477] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 208.319181][ T6480] loop1: detected capacity change from 0 to 32768 [ 208.331338][ T6480] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 208.332618][ T6480] CPU: 1 PID: 6480 Comm: syz.1.601 Not tainted syzkaller #0 [ 208.333721][ T6480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 208.335159][ T6480] Call trace: [ 208.335640][ T6480] dump_backtrace+0x0/0x458 [ 208.336313][ T6480] show_stack+0x2c/0x3c [ 208.336967][ T6480] __dump_stack+0x30/0x40 [ 208.337741][ T6480] dump_stack_lvl+0xf4/0x15c [ 208.338456][ T6480] dump_stack+0x1c/0x5c [ 208.339075][ T6480] sysfs_create_dir_ns+0x244/0x264 [ 208.339891][ T6480] kobject_add_internal+0x594/0xc2c [ 208.340709][ T6480] kobject_init_and_add+0x128/0x194 [ 208.341593][ T6480] gfs2_sys_fs_add+0x208/0x428 [ 208.342400][ T6480] gfs2_fill_super+0xe20/0x1a9c [ 208.343302][ T6480] get_tree_bdev+0x35c/0x54c [ 208.344064][ T6480] gfs2_get_tree+0x58/0x1b8 [ 208.344766][ T6480] vfs_get_tree+0x90/0x278 [ 208.345459][ T6480] do_new_mount+0x228/0x804 [ 208.346191][ T6480] path_mount+0x57c/0xfe8 [ 208.346875][ T6480] __arm64_sys_mount+0x488/0x5f8 [ 208.347645][ T6480] invoke_syscall+0x98/0x28c [ 208.348383][ T6480] el0_svc_common+0x13c/0x258 [ 208.349086][ T6480] do_el0_svc+0x5c/0x140 [ 208.349719][ T6480] el0_svc+0x78/0x1d0 [ 208.350300][ T6480] el0t_64_sync_handler+0xcc/0xe4 [ 208.351102][ T6480] el0t_64_sync+0x1a0/0x1a4 [ 208.353313][ T6480] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 208.355236][ T6480] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 208.494826][ T6483] loop1: detected capacity change from 0 to 32768 [ 208.504263][ T6483] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 208.505409][ T6483] CPU: 0 PID: 6483 Comm: syz.1.602 Not tainted syzkaller #0 [ 208.506497][ T6483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 208.507995][ T6483] Call trace: [ 208.508494][ T6483] dump_backtrace+0x0/0x458 [ 208.509223][ T6483] show_stack+0x2c/0x3c [ 208.509857][ T6483] __dump_stack+0x30/0x40 [ 208.510525][ T6483] dump_stack_lvl+0xf4/0x15c [ 208.511162][ T6483] dump_stack+0x1c/0x5c [ 208.511771][ T6483] sysfs_create_dir_ns+0x244/0x264 [ 208.512627][ T6483] kobject_add_internal+0x594/0xc2c [ 208.513435][ T6483] kobject_init_and_add+0x128/0x194 [ 208.514242][ T6483] gfs2_sys_fs_add+0x208/0x428 [ 208.514985][ T6483] gfs2_fill_super+0xe20/0x1a9c [ 208.515763][ T6483] get_tree_bdev+0x35c/0x54c [ 208.516399][ T6483] gfs2_get_tree+0x58/0x1b8 [ 208.517085][ T6483] vfs_get_tree+0x90/0x278 [ 208.517750][ T6483] do_new_mount+0x228/0x804 [ 208.518447][ T6483] path_mount+0x57c/0xfe8 [ 208.519172][ T6483] __arm64_sys_mount+0x488/0x5f8 [ 208.519912][ T6483] invoke_syscall+0x98/0x28c [ 208.520599][ T6483] el0_svc_common+0x13c/0x258 [ 208.521304][ T6483] do_el0_svc+0x5c/0x140 [ 208.521934][ T6483] el0_svc+0x78/0x1d0 [ 208.522543][ T6483] el0t_64_sync_handler+0xcc/0xe4 [ 208.523287][ T6483] el0t_64_sync+0x1a0/0x1a4 [ 208.525673][ T6483] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 208.527648][ T6483] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 208.717907][ T6486] loop1: detected capacity change from 0 to 32768 [ 208.727619][ T6486] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 208.728796][ T6486] CPU: 1 PID: 6486 Comm: syz.1.603 Not tainted syzkaller #0 [ 208.729859][ T6486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 208.731415][ T6486] Call trace: [ 208.731877][ T6486] dump_backtrace+0x0/0x458 [ 208.732600][ T6486] show_stack+0x2c/0x3c [ 208.733266][ T6486] __dump_stack+0x30/0x40 [ 208.733952][ T6486] dump_stack_lvl+0xf4/0x15c [ 208.734692][ T6486] dump_stack+0x1c/0x5c [ 208.735309][ T6486] sysfs_create_dir_ns+0x244/0x264 [ 208.736153][ T6486] kobject_add_internal+0x594/0xc2c [ 208.737022][ T6486] kobject_init_and_add+0x128/0x194 [ 208.737819][ T6486] gfs2_sys_fs_add+0x208/0x428 [ 208.738629][ T6486] gfs2_fill_super+0xe20/0x1a9c [ 208.739467][ T6486] get_tree_bdev+0x35c/0x54c [ 208.740227][ T6486] gfs2_get_tree+0x58/0x1b8 [ 208.741004][ T6486] vfs_get_tree+0x90/0x278 [ 208.741843][ T6486] do_new_mount+0x228/0x804 [ 208.742630][ T6486] path_mount+0x57c/0xfe8 [ 208.743290][ T6486] __arm64_sys_mount+0x488/0x5f8 [ 208.744050][ T6486] invoke_syscall+0x98/0x28c [ 208.744822][ T6486] el0_svc_common+0x13c/0x258 [ 208.745607][ T6486] do_el0_svc+0x5c/0x140 [ 208.746291][ T6486] el0_svc+0x78/0x1d0 [ 208.746934][ T6486] el0t_64_sync_handler+0xcc/0xe4 [ 208.747755][ T6486] el0t_64_sync+0x1a0/0x1a4 [ 208.749165][ T6486] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 208.751150][ T6486] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 208.883937][ T6489] loop1: detected capacity change from 0 to 32768 [ 208.974829][ T6489] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 208.976002][ T6489] CPU: 0 PID: 6489 Comm: syz.1.604 Not tainted syzkaller #0 [ 208.977205][ T6489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 208.978759][ T6489] Call trace: [ 208.979286][ T6489] dump_backtrace+0x0/0x458 [ 208.979989][ T6489] show_stack+0x2c/0x3c [ 208.980602][ T6489] __dump_stack+0x30/0x40 [ 208.981235][ T6489] dump_stack_lvl+0xf4/0x15c [ 208.981942][ T6489] dump_stack+0x1c/0x5c [ 208.982663][ T6489] sysfs_create_dir_ns+0x244/0x264 [ 208.983445][ T6489] kobject_add_internal+0x594/0xc2c [ 208.984227][ T6489] kobject_init_and_add+0x128/0x194 [ 208.985092][ T6489] gfs2_sys_fs_add+0x208/0x428 [ 208.985862][ T6489] gfs2_fill_super+0xe20/0x1a9c [ 208.986663][ T6489] get_tree_bdev+0x35c/0x54c [ 208.987488][ T6489] gfs2_get_tree+0x58/0x1b8 [ 208.988290][ T6489] vfs_get_tree+0x90/0x278 [ 208.989028][ T6489] do_new_mount+0x228/0x804 [ 208.989778][ T6489] path_mount+0x57c/0xfe8 [ 208.990511][ T6489] __arm64_sys_mount+0x488/0x5f8 [ 208.991236][ T6489] invoke_syscall+0x98/0x28c [ 208.991955][ T6489] el0_svc_common+0x13c/0x258 [ 208.992703][ T6489] do_el0_svc+0x5c/0x140 [ 208.993333][ T6489] el0_svc+0x78/0x1d0 [ 208.993921][ T6489] el0t_64_sync_handler+0xcc/0xe4 [ 208.994658][ T6489] el0t_64_sync+0x1a0/0x1a4 [ 208.997574][ T6489] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 208.999581][ T6489] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 209.137153][ T6492] loop1: detected capacity change from 0 to 32768 [ 209.144746][ T6492] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 209.145957][ T6492] CPU: 1 PID: 6492 Comm: syz.1.605 Not tainted syzkaller #0 [ 209.147046][ T6492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 209.148584][ T6492] Call trace: [ 209.149022][ T6492] dump_backtrace+0x0/0x458 [ 209.149742][ T6492] show_stack+0x2c/0x3c [ 209.150363][ T6492] __dump_stack+0x30/0x40 [ 209.150938][ T6492] dump_stack_lvl+0xf4/0x15c [ 209.151575][ T6492] dump_stack+0x1c/0x5c [ 209.152175][ T6492] sysfs_create_dir_ns+0x244/0x264 [ 209.153008][ T6492] kobject_add_internal+0x594/0xc2c [ 209.153807][ T6492] kobject_init_and_add+0x128/0x194 [ 209.154589][ T6492] gfs2_sys_fs_add+0x208/0x428 [ 209.155340][ T6492] gfs2_fill_super+0xe20/0x1a9c [ 209.156079][ T6492] get_tree_bdev+0x35c/0x54c [ 209.156772][ T6492] gfs2_get_tree+0x58/0x1b8 [ 209.157404][ T6492] vfs_get_tree+0x90/0x278 [ 209.158086][ T6492] do_new_mount+0x228/0x804 [ 209.158747][ T6492] path_mount+0x57c/0xfe8 [ 209.159422][ T6492] __arm64_sys_mount+0x488/0x5f8 [ 209.160208][ T6492] invoke_syscall+0x98/0x28c [ 209.160919][ T6492] el0_svc_common+0x13c/0x258 [ 209.161717][ T6492] do_el0_svc+0x5c/0x140 [ 209.162357][ T6492] el0_svc+0x78/0x1d0 [ 209.162993][ T6492] el0t_64_sync_handler+0xcc/0xe4 [ 209.163772][ T6492] el0t_64_sync+0x1a0/0x1a4 [ 209.165180][ T6492] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 209.167192][ T6492] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 209.307703][ T6495] loop1: detected capacity change from 0 to 32768 [ 209.316173][ T6495] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 209.317271][ T6495] CPU: 0 PID: 6495 Comm: syz.1.606 Not tainted syzkaller #0 [ 209.318471][ T6495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 209.319950][ T6495] Call trace: [ 209.320538][ T6495] dump_backtrace+0x0/0x458 [ 209.321285][ T6495] show_stack+0x2c/0x3c [ 209.321962][ T6495] __dump_stack+0x30/0x40 [ 209.322694][ T6495] dump_stack_lvl+0xf4/0x15c [ 209.323396][ T6495] dump_stack+0x1c/0x5c [ 209.324052][ T6495] sysfs_create_dir_ns+0x244/0x264 [ 209.324858][ T6495] kobject_add_internal+0x594/0xc2c [ 209.325714][ T6495] kobject_init_and_add+0x128/0x194 [ 209.326534][ T6495] gfs2_sys_fs_add+0x208/0x428 [ 209.327317][ T6495] gfs2_fill_super+0xe20/0x1a9c [ 209.328046][ T6495] get_tree_bdev+0x35c/0x54c [ 209.328815][ T6495] gfs2_get_tree+0x58/0x1b8 [ 209.329537][ T6495] vfs_get_tree+0x90/0x278 [ 209.330362][ T6495] do_new_mount+0x228/0x804 [ 209.331204][ T6495] path_mount+0x57c/0xfe8 [ 209.331980][ T6495] __arm64_sys_mount+0x488/0x5f8 [ 209.332781][ T6495] invoke_syscall+0x98/0x28c [ 209.333488][ T6495] el0_svc_common+0x13c/0x258 [ 209.334179][ T6495] do_el0_svc+0x5c/0x140 [ 209.334868][ T6495] el0_svc+0x78/0x1d0 [ 209.335480][ T6495] el0t_64_sync_handler+0xcc/0xe4 [ 209.336288][ T6495] el0t_64_sync+0x1a0/0x1a4 [ 209.340212][ T6495] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 209.342851][ T6495] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 209.487664][ T6498] loop1: detected capacity change from 0 to 32768 [ 209.526936][ T6498] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 209.528031][ T6498] CPU: 0 PID: 6498 Comm: syz.1.607 Not tainted syzkaller #0 [ 209.529162][ T6498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 209.530736][ T6498] Call trace: [ 209.531243][ T6498] dump_backtrace+0x0/0x458 [ 209.532059][ T6498] show_stack+0x2c/0x3c [ 209.532777][ T6498] __dump_stack+0x30/0x40 [ 209.533438][ T6498] dump_stack_lvl+0xf4/0x15c [ 209.534101][ T6498] dump_stack+0x1c/0x5c [ 209.534712][ T6498] sysfs_create_dir_ns+0x244/0x264 [ 209.535471][ T6498] kobject_add_internal+0x594/0xc2c [ 209.536276][ T6498] kobject_init_and_add+0x128/0x194 [ 209.537165][ T6498] gfs2_sys_fs_add+0x208/0x428 [ 209.537975][ T6498] gfs2_fill_super+0xe20/0x1a9c [ 209.538721][ T6498] get_tree_bdev+0x35c/0x54c [ 209.539443][ T6498] gfs2_get_tree+0x58/0x1b8 [ 209.540170][ T6498] vfs_get_tree+0x90/0x278 [ 209.540862][ T6498] do_new_mount+0x228/0x804 [ 209.541558][ T6498] path_mount+0x57c/0xfe8 [ 209.542254][ T6498] __arm64_sys_mount+0x488/0x5f8 [ 209.543017][ T6498] invoke_syscall+0x98/0x28c [ 209.543704][ T6498] el0_svc_common+0x13c/0x258 [ 209.544424][ T6498] do_el0_svc+0x5c/0x140 [ 209.545123][ T6498] el0_svc+0x78/0x1d0 [ 209.545732][ T6498] el0t_64_sync_handler+0xcc/0xe4 [ 209.546511][ T6498] el0t_64_sync+0x1a0/0x1a4 [ 209.548885][ T6498] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 209.550820][ T6498] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 209.733388][ T6501] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 209.734628][ T6501] CPU: 0 PID: 6501 Comm: syz.1.608 Not tainted syzkaller #0 [ 209.735620][ T6501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 209.737115][ T6501] Call trace: [ 209.737650][ T6501] dump_backtrace+0x0/0x458 [ 209.738436][ T6501] show_stack+0x2c/0x3c [ 209.739073][ T6501] __dump_stack+0x30/0x40 [ 209.739677][ T6501] dump_stack_lvl+0xf4/0x15c [ 209.740392][ T6501] dump_stack+0x1c/0x5c [ 209.740976][ T6501] sysfs_create_dir_ns+0x244/0x264 [ 209.741647][ T6501] kobject_add_internal+0x594/0xc2c [ 209.742437][ T6501] kobject_init_and_add+0x128/0x194 [ 209.743267][ T6501] gfs2_sys_fs_add+0x208/0x428 [ 209.743987][ T6501] gfs2_fill_super+0xe20/0x1a9c [ 209.744771][ T6501] get_tree_bdev+0x35c/0x54c [ 209.745471][ T6501] gfs2_get_tree+0x58/0x1b8 [ 209.746160][ T6501] vfs_get_tree+0x90/0x278 [ 209.746795][ T6501] do_new_mount+0x228/0x804 [ 209.747669][ T6501] path_mount+0x57c/0xfe8 [ 209.748386][ T6501] __arm64_sys_mount+0x488/0x5f8 [ 209.749131][ T6501] invoke_syscall+0x98/0x28c [ 209.749772][ T6501] el0_svc_common+0x13c/0x258 [ 209.750518][ T6501] do_el0_svc+0x5c/0x140 [ 209.751179][ T6501] el0_svc+0x78/0x1d0 [ 209.751840][ T6501] el0t_64_sync_handler+0xcc/0xe4 [ 209.752643][ T6501] el0t_64_sync+0x1a0/0x1a4 [ 209.754962][ T6501] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 209.756968][ T6501] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 209.922140][ T4168] Bluetooth: hci1: command 0x0406 tx timeout [ 210.058424][ T6504] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 210.059625][ T6504] CPU: 0 PID: 6504 Comm: syz.1.609 Not tainted syzkaller #0 [ 210.060694][ T6504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 210.062164][ T6504] Call trace: [ 210.062681][ T6504] dump_backtrace+0x0/0x458 [ 210.063376][ T6504] show_stack+0x2c/0x3c [ 210.064024][ T6504] __dump_stack+0x30/0x40 [ 210.064691][ T6504] dump_stack_lvl+0xf4/0x15c [ 210.065437][ T6504] dump_stack+0x1c/0x5c [ 210.066124][ T6504] sysfs_create_dir_ns+0x244/0x264 [ 210.066928][ T6504] kobject_add_internal+0x594/0xc2c [ 210.067777][ T6504] kobject_init_and_add+0x128/0x194 [ 210.068634][ T6504] gfs2_sys_fs_add+0x208/0x428 [ 210.069366][ T6504] gfs2_fill_super+0xe20/0x1a9c [ 210.070181][ T6504] get_tree_bdev+0x35c/0x54c [ 210.070969][ T6504] gfs2_get_tree+0x58/0x1b8 [ 210.071693][ T6504] vfs_get_tree+0x90/0x278 [ 210.072353][ T6504] do_new_mount+0x228/0x804 [ 210.073067][ T6504] path_mount+0x57c/0xfe8 [ 210.073883][ T6504] __arm64_sys_mount+0x488/0x5f8 [ 210.074614][ T6504] invoke_syscall+0x98/0x28c [ 210.075290][ T6504] el0_svc_common+0x13c/0x258 [ 210.076023][ T6504] do_el0_svc+0x5c/0x140 [ 210.076677][ T6504] el0_svc+0x78/0x1d0 [ 210.077422][ T6504] el0t_64_sync_handler+0xcc/0xe4 [ 210.078249][ T6504] el0t_64_sync+0x1a0/0x1a4 [ 210.079382][ T6504] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 210.081471][ T6504] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 210.253443][ T6507] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 210.254690][ T6507] CPU: 0 PID: 6507 Comm: syz.1.610 Not tainted syzkaller #0 [ 210.255757][ T6507] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 210.257274][ T6507] Call trace: [ 210.257826][ T6507] dump_backtrace+0x0/0x458 [ 210.258525][ T6507] show_stack+0x2c/0x3c [ 210.259158][ T6507] __dump_stack+0x30/0x40 [ 210.259823][ T6507] dump_stack_lvl+0xf4/0x15c [ 210.260540][ T6507] dump_stack+0x1c/0x5c [ 210.261114][ T6507] sysfs_create_dir_ns+0x244/0x264 [ 210.261909][ T6507] kobject_add_internal+0x594/0xc2c [ 210.262846][ T6507] kobject_init_and_add+0x128/0x194 [ 210.263685][ T6507] gfs2_sys_fs_add+0x208/0x428 [ 210.264441][ T6507] gfs2_fill_super+0xe20/0x1a9c [ 210.265206][ T6507] get_tree_bdev+0x35c/0x54c [ 210.265995][ T6507] gfs2_get_tree+0x58/0x1b8 [ 210.266730][ T6507] vfs_get_tree+0x90/0x278 [ 210.267430][ T6507] do_new_mount+0x228/0x804 [ 210.268292][ T6507] path_mount+0x57c/0xfe8 [ 210.269011][ T6507] __arm64_sys_mount+0x488/0x5f8 [ 210.269869][ T6507] invoke_syscall+0x98/0x28c [ 210.270573][ T6507] el0_svc_common+0x13c/0x258 [ 210.271244][ T6507] do_el0_svc+0x5c/0x140 [ 210.272029][ T6507] el0_svc+0x78/0x1d0 [ 210.272680][ T6507] el0t_64_sync_handler+0xcc/0xe4 [ 210.273499][ T6507] el0t_64_sync+0x1a0/0x1a4 [ 210.276871][ T6507] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 210.278857][ T6507] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 210.425612][ T6510] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 210.426850][ T6510] CPU: 0 PID: 6510 Comm: syz.1.611 Not tainted syzkaller #0 [ 210.428026][ T6510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 210.429492][ T6510] Call trace: [ 210.430032][ T6510] dump_backtrace+0x0/0x458 [ 210.430730][ T6510] show_stack+0x2c/0x3c [ 210.431357][ T6510] __dump_stack+0x30/0x40 [ 210.432009][ T6510] dump_stack_lvl+0xf4/0x15c [ 210.432670][ T6510] dump_stack+0x1c/0x5c [ 210.433345][ T6510] sysfs_create_dir_ns+0x244/0x264 [ 210.434094][ T6510] kobject_add_internal+0x594/0xc2c [ 210.434967][ T6510] kobject_init_and_add+0x128/0x194 [ 210.435833][ T6510] gfs2_sys_fs_add+0x208/0x428 [ 210.436612][ T6510] gfs2_fill_super+0xe20/0x1a9c [ 210.437359][ T6510] get_tree_bdev+0x35c/0x54c [ 210.438064][ T6510] gfs2_get_tree+0x58/0x1b8 [ 210.438797][ T6510] vfs_get_tree+0x90/0x278 [ 210.439480][ T6510] do_new_mount+0x228/0x804 [ 210.440168][ T6510] path_mount+0x57c/0xfe8 [ 210.440843][ T6510] __arm64_sys_mount+0x488/0x5f8 [ 210.441648][ T6510] invoke_syscall+0x98/0x28c [ 210.442431][ T6510] el0_svc_common+0x13c/0x258 [ 210.443139][ T6510] do_el0_svc+0x5c/0x140 [ 210.443841][ T6510] el0_svc+0x78/0x1d0 [ 210.444486][ T6510] el0t_64_sync_handler+0xcc/0xe4 [ 210.445294][ T6510] el0t_64_sync+0x1a0/0x1a4 [ 210.448526][ T6510] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 210.450633][ T6510] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 210.595494][ T6513] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 210.596766][ T6513] CPU: 1 PID: 6513 Comm: syz.1.612 Not tainted syzkaller #0 [ 210.597970][ T6513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 210.599495][ T6513] Call trace: [ 210.599957][ T6513] dump_backtrace+0x0/0x458 [ 210.600575][ T6513] show_stack+0x2c/0x3c [ 210.601232][ T6513] __dump_stack+0x30/0x40 [ 210.602003][ T6513] dump_stack_lvl+0xf4/0x15c [ 210.602768][ T6513] dump_stack+0x1c/0x5c [ 210.603544][ T6513] sysfs_create_dir_ns+0x244/0x264 [ 210.604541][ T6513] kobject_add_internal+0x594/0xc2c [ 210.605356][ T6513] kobject_init_and_add+0x128/0x194 [ 210.606156][ T6513] gfs2_sys_fs_add+0x208/0x428 [ 210.606906][ T6513] gfs2_fill_super+0xe20/0x1a9c [ 210.607705][ T6513] get_tree_bdev+0x35c/0x54c [ 210.608444][ T6513] gfs2_get_tree+0x58/0x1b8 [ 210.609130][ T6513] vfs_get_tree+0x90/0x278 [ 210.609864][ T6513] do_new_mount+0x228/0x804 [ 210.610562][ T6513] path_mount+0x57c/0xfe8 [ 210.611206][ T6513] __arm64_sys_mount+0x488/0x5f8 [ 210.611983][ T6513] invoke_syscall+0x98/0x28c [ 210.612648][ T6513] el0_svc_common+0x13c/0x258 [ 210.613374][ T6513] do_el0_svc+0x5c/0x140 [ 210.614064][ T6513] el0_svc+0x78/0x1d0 [ 210.614691][ T6513] el0t_64_sync_handler+0xcc/0xe4 [ 210.615457][ T6513] el0t_64_sync+0x1a0/0x1a4 [ 210.617837][ T6513] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 210.619737][ T6513] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 210.807665][ T6516] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 210.808910][ T6516] CPU: 1 PID: 6516 Comm: syz.1.613 Not tainted syzkaller #0 [ 210.810015][ T6516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 210.811416][ T6516] Call trace: [ 210.811909][ T6516] dump_backtrace+0x0/0x458 [ 210.812681][ T6516] show_stack+0x2c/0x3c [ 210.813395][ T6516] __dump_stack+0x30/0x40 [ 210.814128][ T6516] dump_stack_lvl+0xf4/0x15c [ 210.814828][ T6516] dump_stack+0x1c/0x5c [ 210.815496][ T6516] sysfs_create_dir_ns+0x244/0x264 [ 210.816306][ T6516] kobject_add_internal+0x594/0xc2c [ 210.817102][ T6516] kobject_init_and_add+0x128/0x194 [ 210.817911][ T6516] gfs2_sys_fs_add+0x208/0x428 [ 210.818621][ T6516] gfs2_fill_super+0xe20/0x1a9c [ 210.819380][ T6516] get_tree_bdev+0x35c/0x54c [ 210.820098][ T6516] gfs2_get_tree+0x58/0x1b8 [ 210.820771][ T6516] vfs_get_tree+0x90/0x278 [ 210.821482][ T6516] do_new_mount+0x228/0x804 [ 210.822233][ T6516] path_mount+0x57c/0xfe8 [ 210.822887][ T6516] __arm64_sys_mount+0x488/0x5f8 [ 210.823682][ T6516] invoke_syscall+0x98/0x28c [ 210.824412][ T6516] el0_svc_common+0x13c/0x258 [ 210.825172][ T6516] do_el0_svc+0x5c/0x140 [ 210.825868][ T6516] el0_svc+0x78/0x1d0 [ 210.826499][ T6516] el0t_64_sync_handler+0xcc/0xe4 [ 210.827294][ T6516] el0t_64_sync+0x1a0/0x1a4 [ 210.828254][ T6516] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 210.830284][ T6516] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 211.011625][ T6519] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 211.013561][ T6519] CPU: 1 PID: 6519 Comm: syz.1.614 Not tainted syzkaller #0 [ 211.014727][ T6519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 211.016225][ T6519] Call trace: [ 211.016735][ T6519] dump_backtrace+0x0/0x458 [ 211.017347][ T6519] show_stack+0x2c/0x3c [ 211.017918][ T6519] __dump_stack+0x30/0x40 [ 211.018499][ T6519] dump_stack_lvl+0xf4/0x15c [ 211.019208][ T6519] dump_stack+0x1c/0x5c [ 211.019815][ T6519] sysfs_create_dir_ns+0x244/0x264 [ 211.020612][ T6519] kobject_add_internal+0x594/0xc2c [ 211.021399][ T6519] kobject_init_and_add+0x128/0x194 [ 211.022181][ T6519] gfs2_sys_fs_add+0x208/0x428 [ 211.022927][ T6519] gfs2_fill_super+0xe20/0x1a9c [ 211.023661][ T6519] get_tree_bdev+0x35c/0x54c [ 211.024394][ T6519] gfs2_get_tree+0x58/0x1b8 [ 211.025088][ T6519] vfs_get_tree+0x90/0x278 [ 211.025722][ T6519] do_new_mount+0x228/0x804 [ 211.026405][ T6519] path_mount+0x57c/0xfe8 [ 211.027100][ T6519] __arm64_sys_mount+0x488/0x5f8 [ 211.027857][ T6519] invoke_syscall+0x98/0x28c [ 211.028586][ T6519] el0_svc_common+0x13c/0x258 [ 211.029284][ T6519] do_el0_svc+0x5c/0x140 [ 211.029962][ T6519] el0_svc+0x78/0x1d0 [ 211.030564][ T6519] el0t_64_sync_handler+0xcc/0xe4 [ 211.031364][ T6519] el0t_64_sync+0x1a0/0x1a4 [ 211.032293][ T6519] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 211.034219][ T6519] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 211.243901][ T6522] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 211.245717][ T6522] CPU: 1 PID: 6522 Comm: syz.1.615 Not tainted syzkaller #0 [ 211.246844][ T6522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 211.248403][ T6522] Call trace: [ 211.248905][ T6522] dump_backtrace+0x0/0x458 [ 211.249586][ T6522] show_stack+0x2c/0x3c [ 211.250224][ T6522] __dump_stack+0x30/0x40 [ 211.250847][ T6522] dump_stack_lvl+0xf4/0x15c [ 211.251541][ T6522] dump_stack+0x1c/0x5c [ 211.252194][ T6522] sysfs_create_dir_ns+0x244/0x264 [ 211.253002][ T6522] kobject_add_internal+0x594/0xc2c [ 211.253816][ T6522] kobject_init_and_add+0x128/0x194 [ 211.254648][ T6522] gfs2_sys_fs_add+0x208/0x428 [ 211.255400][ T6522] gfs2_fill_super+0xe20/0x1a9c [ 211.256133][ T6522] get_tree_bdev+0x35c/0x54c [ 211.256793][ T6522] gfs2_get_tree+0x58/0x1b8 [ 211.257467][ T6522] vfs_get_tree+0x90/0x278 [ 211.258158][ T6522] do_new_mount+0x228/0x804 [ 211.258879][ T6522] path_mount+0x57c/0xfe8 [ 211.259569][ T6522] __arm64_sys_mount+0x488/0x5f8 [ 211.260369][ T6522] invoke_syscall+0x98/0x28c [ 211.261091][ T6522] el0_svc_common+0x13c/0x258 [ 211.261904][ T6522] do_el0_svc+0x5c/0x140 [ 211.262674][ T6522] el0_svc+0x78/0x1d0 [ 211.263308][ T6522] el0t_64_sync_handler+0xcc/0xe4 [ 211.264110][ T6522] el0t_64_sync+0x1a0/0x1a4 [ 211.265415][ T6522] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 211.267267][ T6522] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 211.469508][ T6525] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 211.470738][ T6525] CPU: 1 PID: 6525 Comm: syz.1.616 Not tainted syzkaller #0 [ 211.471871][ T6525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 211.473504][ T6525] Call trace: [ 211.474047][ T6525] dump_backtrace+0x0/0x458 [ 211.474717][ T6525] show_stack+0x2c/0x3c [ 211.475448][ T6525] __dump_stack+0x30/0x40 [ 211.476150][ T6525] dump_stack_lvl+0xf4/0x15c [ 211.476940][ T6525] dump_stack+0x1c/0x5c [ 211.477675][ T6525] sysfs_create_dir_ns+0x244/0x264 [ 211.478435][ T6525] kobject_add_internal+0x594/0xc2c [ 211.479311][ T6525] kobject_init_and_add+0x128/0x194 [ 211.480139][ T6525] gfs2_sys_fs_add+0x208/0x428 [ 211.480914][ T6525] gfs2_fill_super+0xe20/0x1a9c [ 211.481706][ T6525] get_tree_bdev+0x35c/0x54c [ 211.482415][ T6525] gfs2_get_tree+0x58/0x1b8 [ 211.483064][ T6525] vfs_get_tree+0x90/0x278 [ 211.483784][ T6525] do_new_mount+0x228/0x804 [ 211.484518][ T6525] path_mount+0x57c/0xfe8 [ 211.485240][ T6525] __arm64_sys_mount+0x488/0x5f8 [ 211.486017][ T6525] invoke_syscall+0x98/0x28c [ 211.486696][ T6525] el0_svc_common+0x13c/0x258 [ 211.487395][ T6525] do_el0_svc+0x5c/0x140 [ 211.488036][ T6525] el0_svc+0x78/0x1d0 [ 211.488650][ T6525] el0t_64_sync_handler+0xcc/0xe4 [ 211.489433][ T6525] el0t_64_sync+0x1a0/0x1a4 [ 211.491520][ T6525] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 211.493710][ T6525] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 211.671873][ T6528] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 211.673981][ T6528] CPU: 0 PID: 6528 Comm: syz.1.617 Not tainted syzkaller #0 [ 211.675042][ T6528] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 211.676592][ T6528] Call trace: [ 211.677156][ T6528] dump_backtrace+0x0/0x458 [ 211.677825][ T6528] show_stack+0x2c/0x3c [ 211.678456][ T6528] __dump_stack+0x30/0x40 [ 211.679100][ T6528] dump_stack_lvl+0xf4/0x15c [ 211.679750][ T6528] dump_stack+0x1c/0x5c [ 211.680373][ T6528] sysfs_create_dir_ns+0x244/0x264 [ 211.681081][ T6528] kobject_add_internal+0x594/0xc2c [ 211.681880][ T6528] kobject_init_and_add+0x128/0x194 [ 211.682685][ T6528] gfs2_sys_fs_add+0x208/0x428 [ 211.683422][ T6528] gfs2_fill_super+0xe20/0x1a9c [ 211.684175][ T6528] get_tree_bdev+0x35c/0x54c [ 211.684884][ T6528] gfs2_get_tree+0x58/0x1b8 [ 211.685604][ T6528] vfs_get_tree+0x90/0x278 [ 211.686293][ T6528] do_new_mount+0x228/0x804 [ 211.687001][ T6528] path_mount+0x57c/0xfe8 [ 211.687661][ T6528] __arm64_sys_mount+0x488/0x5f8 [ 211.688500][ T6528] invoke_syscall+0x98/0x28c [ 211.689204][ T6528] el0_svc_common+0x13c/0x258 [ 211.689908][ T6528] do_el0_svc+0x5c/0x140 [ 211.690629][ T6528] el0_svc+0x78/0x1d0 [ 211.691239][ T6528] el0t_64_sync_handler+0xcc/0xe4 [ 211.692031][ T6528] el0t_64_sync+0x1a0/0x1a4 [ 211.694369][ T6528] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 211.696242][ T6528] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 211.773254][ T6531] chnl_net:caif_netlink_parms(): no params data found [ 211.793693][ T6531] bridge0: port 1(bridge_slave_0) entered blocking state [ 211.794833][ T6531] bridge0: port 1(bridge_slave_0) entered disabled state [ 211.796350][ T6531] device bridge_slave_0 entered promiscuous mode [ 211.798362][ T6531] bridge0: port 2(bridge_slave_1) entered blocking state [ 211.799556][ T6531] bridge0: port 2(bridge_slave_1) entered disabled state [ 211.801542][ T6531] device bridge_slave_1 entered promiscuous mode [ 211.810368][ T6531] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 211.813666][ T6531] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 211.823134][ T6531] team0: Port device team_slave_0 added [ 211.824904][ T6531] team0: Port device team_slave_1 added [ 211.831755][ T6531] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 211.833804][ T6531] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 211.837830][ T6531] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 211.853777][ T6531] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 211.854963][ T6531] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 211.858710][ T6531] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 211.903402][ T6531] device hsr_slave_0 entered promiscuous mode [ 211.942343][ T6531] device hsr_slave_1 entered promiscuous mode [ 211.982757][ T6531] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 211.984088][ T6531] Cannot create hsr debugfs directory [ 212.016547][ T6531] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 212.316045][ T6531] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 212.360502][ T6531] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 212.445148][ T6531] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 212.626402][ T6531] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 212.667173][ T6531] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 212.713538][ T6531] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 212.753263][ T6531] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 212.803298][ T6531] bridge0: port 2(bridge_slave_1) entered blocking state [ 212.804544][ T6531] bridge0: port 2(bridge_slave_1) entered forwarding state [ 212.805969][ T6531] bridge0: port 1(bridge_slave_0) entered blocking state [ 212.807140][ T6531] bridge0: port 1(bridge_slave_0) entered forwarding state [ 212.812308][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 212.813763][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 212.835631][ T6531] 8021q: adding VLAN 0 to HW filter on device bond0 [ 212.839520][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 212.841012][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 212.845120][ T6531] 8021q: adding VLAN 0 to HW filter on device team0 [ 212.848279][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 212.849924][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 212.851289][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 212.852287][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 212.859109][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 212.860698][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 212.862391][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 212.863555][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 212.866130][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 212.868884][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 212.871662][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 212.873968][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 212.875495][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 212.878073][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 212.879623][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 212.882588][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 212.884089][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 212.886752][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 212.888277][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 212.890570][ T6531] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 212.932645][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 212.933910][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 212.937292][ T6531] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 212.948027][ T718] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 212.949615][ T718] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 212.956800][ T718] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 212.958437][ T718] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 212.960006][ T718] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 212.961361][ T718] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 212.968516][ T6531] device veth0_vlan entered promiscuous mode [ 212.974268][ T6531] device veth1_vlan entered promiscuous mode [ 212.985234][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 212.986774][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 212.988194][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 212.989758][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 212.991902][ T6531] device veth0_macvtap entered promiscuous mode [ 212.996143][ T6531] device veth1_macvtap entered promiscuous mode [ 213.001161][ T6531] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 213.003688][ T6531] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 213.005272][ T6531] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 213.006884][ T6531] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 213.008972][ T6531] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 213.015145][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 213.016827][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 213.018311][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 213.019836][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 213.022219][ T6531] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 213.023747][ T6531] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 213.025201][ T6531] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 213.026792][ T6531] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 213.029071][ T6531] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 213.030271][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 213.031964][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 213.034917][ T6531] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 213.036298][ T6531] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 213.037615][ T6531] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 213.039028][ T6531] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 213.064591][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 213.065968][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 213.067846][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 213.081148][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 213.083141][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 213.084506][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:03:33 executed programs: 604 [ 213.230681][ T6543] set_capacity_and_notify: 10 callbacks suppressed [ 213.230691][ T6543] loop1: detected capacity change from 0 to 32768 [ 213.325518][ T6543] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 213.326680][ T6543] CPU: 1 PID: 6543 Comm: syz.1.618 Not tainted syzkaller #0 [ 213.327737][ T6543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 213.329128][ T6543] Call trace: [ 213.329605][ T6543] dump_backtrace+0x0/0x458 [ 213.330353][ T6543] show_stack+0x2c/0x3c [ 213.331027][ T6543] __dump_stack+0x30/0x40 [ 213.331746][ T6543] dump_stack_lvl+0xf4/0x15c [ 213.332484][ T6543] dump_stack+0x1c/0x5c [ 213.333138][ T6543] sysfs_create_dir_ns+0x244/0x264 [ 213.333901][ T6543] kobject_add_internal+0x594/0xc2c [ 213.334763][ T6543] kobject_init_and_add+0x128/0x194 [ 213.335624][ T6543] gfs2_sys_fs_add+0x208/0x428 [ 213.336357][ T6543] gfs2_fill_super+0xe20/0x1a9c [ 213.337125][ T6543] get_tree_bdev+0x35c/0x54c [ 213.337886][ T6543] gfs2_get_tree+0x58/0x1b8 [ 213.338620][ T6543] vfs_get_tree+0x90/0x278 [ 213.339409][ T6543] do_new_mount+0x228/0x804 [ 213.340072][ T6543] path_mount+0x57c/0xfe8 [ 213.340712][ T6543] __arm64_sys_mount+0x488/0x5f8 [ 213.341451][ T6543] invoke_syscall+0x98/0x28c [ 213.342220][ T6543] el0_svc_common+0x13c/0x258 [ 213.342961][ T6543] do_el0_svc+0x5c/0x140 [ 213.343679][ T6543] el0_svc+0x78/0x1d0 [ 213.344406][ T6543] el0t_64_sync_handler+0xcc/0xe4 [ 213.345299][ T6543] el0t_64_sync+0x1a0/0x1a4 [ 213.347865][ T6543] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 213.349732][ T6543] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 213.485403][ T6546] loop1: detected capacity change from 0 to 32768 [ 213.526486][ T6546] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 213.527729][ T6546] CPU: 1 PID: 6546 Comm: syz.1.619 Not tainted syzkaller #0 [ 213.528873][ T6546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 213.530465][ T6546] Call trace: [ 213.530989][ T6546] dump_backtrace+0x0/0x458 [ 213.531678][ T6546] show_stack+0x2c/0x3c [ 213.532375][ T6546] __dump_stack+0x30/0x40 [ 213.533158][ T6546] dump_stack_lvl+0xf4/0x15c [ 213.533887][ T6546] dump_stack+0x1c/0x5c [ 213.534606][ T6546] sysfs_create_dir_ns+0x244/0x264 [ 213.535480][ T6546] kobject_add_internal+0x594/0xc2c [ 213.536335][ T6546] kobject_init_and_add+0x128/0x194 [ 213.537228][ T6546] gfs2_sys_fs_add+0x208/0x428 [ 213.538039][ T6546] gfs2_fill_super+0xe20/0x1a9c [ 213.538821][ T6546] get_tree_bdev+0x35c/0x54c [ 213.539624][ T6546] gfs2_get_tree+0x58/0x1b8 [ 213.540413][ T6546] vfs_get_tree+0x90/0x278 [ 213.541188][ T6546] do_new_mount+0x228/0x804 [ 213.541869][ T6546] path_mount+0x57c/0xfe8 [ 213.542526][ T6546] __arm64_sys_mount+0x488/0x5f8 [ 213.543294][ T6546] invoke_syscall+0x98/0x28c [ 213.543989][ T6546] el0_svc_common+0x13c/0x258 [ 213.544753][ T6546] do_el0_svc+0x5c/0x140 [ 213.545447][ T6546] el0_svc+0x78/0x1d0 [ 213.546061][ T6546] el0t_64_sync_handler+0xcc/0xe4 [ 213.546918][ T6546] el0t_64_sync+0x1a0/0x1a4 [ 213.549229][ T6546] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 213.551203][ T6546] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 213.558896][ T1611] device hsr_slave_0 left promiscuous mode [ 213.592670][ T1611] device hsr_slave_1 left promiscuous mode [ 213.653144][ T1611] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 213.654303][ T1611] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 213.655849][ T1611] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 213.656953][ T1611] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 213.658483][ T1611] device bridge_slave_1 left promiscuous mode [ 213.659458][ T1611] bridge0: port 2(bridge_slave_1) entered disabled state [ 213.687185][ T6549] loop1: detected capacity change from 0 to 32768 [ 213.702748][ T1611] device bridge_slave_0 left promiscuous mode [ 213.703972][ T1611] bridge0: port 1(bridge_slave_0) entered disabled state [ 213.749462][ T6549] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 213.750730][ T6549] CPU: 0 PID: 6549 Comm: syz.1.620 Not tainted syzkaller #0 [ 213.751844][ T6549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 213.753484][ T6549] Call trace: [ 213.754006][ T6549] dump_backtrace+0x0/0x458 [ 213.754801][ T6549] show_stack+0x2c/0x3c [ 213.755437][ T6549] __dump_stack+0x30/0x40 [ 213.756118][ T6549] dump_stack_lvl+0xf4/0x15c [ 213.756955][ T6549] dump_stack+0x1c/0x5c [ 213.757576][ T6549] sysfs_create_dir_ns+0x244/0x264 [ 213.758400][ T6549] kobject_add_internal+0x594/0xc2c [ 213.759161][ T6549] kobject_init_and_add+0x128/0x194 [ 213.759949][ T6549] gfs2_sys_fs_add+0x208/0x428 [ 213.760657][ T6549] gfs2_fill_super+0xe20/0x1a9c [ 213.761424][ T6549] get_tree_bdev+0x35c/0x54c [ 213.762130][ T6549] gfs2_get_tree+0x58/0x1b8 [ 213.762846][ T6549] vfs_get_tree+0x90/0x278 [ 213.763523][ T6549] do_new_mount+0x228/0x804 [ 213.764216][ T6549] path_mount+0x57c/0xfe8 [ 213.764869][ T6549] __arm64_sys_mount+0x488/0x5f8 [ 213.765636][ T6549] invoke_syscall+0x98/0x28c [ 213.766357][ T6549] el0_svc_common+0x13c/0x258 [ 213.767078][ T6549] do_el0_svc+0x5c/0x140 [ 213.767704][ T6549] el0_svc+0x78/0x1d0 [ 213.768318][ T6549] el0t_64_sync_handler+0xcc/0xe4 [ 213.769118][ T6549] el0t_64_sync+0x1a0/0x1a4 [ 213.771362][ T4142] Bluetooth: hci2: command 0x0409 tx timeout [ 213.773075][ T6549] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 213.775049][ T6549] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 213.842468][ T1611] device veth1_macvtap left promiscuous mode [ 213.843593][ T1611] device veth0_macvtap left promiscuous mode [ 213.844670][ T1611] device veth1_vlan left promiscuous mode [ 213.845678][ T1611] device veth0_vlan left promiscuous mode [ 213.920547][ T6552] loop1: detected capacity change from 0 to 32768 [ 213.931941][ T6552] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 213.933207][ T6552] CPU: 0 PID: 6552 Comm: syz.1.621 Not tainted syzkaller #0 [ 213.934394][ T6552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 213.935952][ T6552] Call trace: [ 213.936421][ T6552] dump_backtrace+0x0/0x458 [ 213.937056][ T6552] show_stack+0x2c/0x3c [ 213.937637][ T6552] __dump_stack+0x30/0x40 [ 213.938260][ T6552] dump_stack_lvl+0xf4/0x15c [ 213.938922][ T6552] dump_stack+0x1c/0x5c [ 213.939549][ T6552] sysfs_create_dir_ns+0x244/0x264 [ 213.940272][ T6552] kobject_add_internal+0x594/0xc2c [ 213.941051][ T6552] kobject_init_and_add+0x128/0x194 [ 213.941789][ T6552] gfs2_sys_fs_add+0x208/0x428 [ 213.942513][ T6552] gfs2_fill_super+0xe20/0x1a9c [ 213.943286][ T6552] get_tree_bdev+0x35c/0x54c [ 213.944037][ T6552] gfs2_get_tree+0x58/0x1b8 [ 213.944738][ T6552] vfs_get_tree+0x90/0x278 [ 213.945475][ T6552] do_new_mount+0x228/0x804 [ 213.946190][ T6552] path_mount+0x57c/0xfe8 [ 213.946900][ T6552] __arm64_sys_mount+0x488/0x5f8 [ 213.947686][ T6552] invoke_syscall+0x98/0x28c [ 213.948418][ T6552] el0_svc_common+0x13c/0x258 [ 213.949160][ T6552] do_el0_svc+0x5c/0x140 [ 213.949767][ T6552] el0_svc+0x78/0x1d0 [ 213.950399][ T6552] el0t_64_sync_handler+0xcc/0xe4 [ 213.951168][ T6552] el0t_64_sync+0x1a0/0x1a4 [ 213.953529][ T6552] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 213.955490][ T6552] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 213.991329][ T1611] team0 (unregistering): Port device team_slave_1 removed [ 214.024363][ T1611] team0 (unregistering): Port device team_slave_0 removed [ 214.029160][ T1611] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 214.056282][ T1611] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 214.094862][ T6555] loop1: detected capacity change from 0 to 32768 [ 214.146265][ T6555] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 214.147451][ T6555] CPU: 1 PID: 6555 Comm: syz.1.622 Not tainted syzkaller #0 [ 214.148627][ T6555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 214.149615][ T1611] bond0 (unregistering): Released all slaves [ 214.150190][ T6555] Call trace: [ 214.151700][ T6555] dump_backtrace+0x0/0x458 [ 214.152532][ T6555] show_stack+0x2c/0x3c [ 214.153216][ T6555] __dump_stack+0x30/0x40 [ 214.153946][ T6555] dump_stack_lvl+0xf4/0x15c [ 214.154704][ T6555] dump_stack+0x1c/0x5c [ 214.155415][ T6555] sysfs_create_dir_ns+0x244/0x264 [ 214.156347][ T6555] kobject_add_internal+0x594/0xc2c [ 214.157340][ T6555] kobject_init_and_add+0x128/0x194 [ 214.158232][ T6555] gfs2_sys_fs_add+0x208/0x428 [ 214.159111][ T6555] gfs2_fill_super+0xe20/0x1a9c [ 214.160050][ T6555] get_tree_bdev+0x35c/0x54c [ 214.160897][ T6555] gfs2_get_tree+0x58/0x1b8 [ 214.161665][ T6555] vfs_get_tree+0x90/0x278 [ 214.162361][ T6555] do_new_mount+0x228/0x804 [ 214.163148][ T6555] path_mount+0x57c/0xfe8 [ 214.163942][ T6555] __arm64_sys_mount+0x488/0x5f8 [ 214.164755][ T6555] invoke_syscall+0x98/0x28c [ 214.165531][ T6555] el0_svc_common+0x13c/0x258 [ 214.166269][ T6555] do_el0_svc+0x5c/0x140 [ 214.167035][ T6555] el0_svc+0x78/0x1d0 [ 214.167712][ T6555] el0t_64_sync_handler+0xcc/0xe4 [ 214.168572][ T6555] el0t_64_sync+0x1a0/0x1a4 [ 214.174030][ T6555] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 214.175968][ T6555] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 214.320953][ T6558] loop1: detected capacity change from 0 to 32768 [ 214.373940][ T6558] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 214.375090][ T6558] CPU: 0 PID: 6558 Comm: syz.1.623 Not tainted syzkaller #0 [ 214.376183][ T6558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 214.377769][ T6558] Call trace: [ 214.378287][ T6558] dump_backtrace+0x0/0x458 [ 214.378981][ T6558] show_stack+0x2c/0x3c [ 214.379596][ T6558] __dump_stack+0x30/0x40 [ 214.380253][ T6558] dump_stack_lvl+0xf4/0x15c [ 214.380968][ T6558] dump_stack+0x1c/0x5c [ 214.381623][ T6558] sysfs_create_dir_ns+0x244/0x264 [ 214.382397][ T6558] kobject_add_internal+0x594/0xc2c [ 214.383169][ T6558] kobject_init_and_add+0x128/0x194 [ 214.384029][ T6558] gfs2_sys_fs_add+0x208/0x428 [ 214.384798][ T6558] gfs2_fill_super+0xe20/0x1a9c [ 214.385610][ T6558] get_tree_bdev+0x35c/0x54c [ 214.386320][ T6558] gfs2_get_tree+0x58/0x1b8 [ 214.386995][ T6558] vfs_get_tree+0x90/0x278 [ 214.387705][ T6558] do_new_mount+0x228/0x804 [ 214.388494][ T6558] path_mount+0x57c/0xfe8 [ 214.389208][ T6558] __arm64_sys_mount+0x488/0x5f8 [ 214.390119][ T6558] invoke_syscall+0x98/0x28c [ 214.390843][ T6558] el0_svc_common+0x13c/0x258 [ 214.391568][ T6558] do_el0_svc+0x5c/0x140 [ 214.392242][ T6558] el0_svc+0x78/0x1d0 [ 214.392866][ T6558] el0t_64_sync_handler+0xcc/0xe4 [ 214.393674][ T6558] el0t_64_sync+0x1a0/0x1a4 [ 214.396108][ T6558] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 214.398130][ T6558] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 214.544986][ T6561] loop1: detected capacity change from 0 to 32768 [ 214.597483][ T6561] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 214.598691][ T6561] CPU: 0 PID: 6561 Comm: syz.1.624 Not tainted syzkaller #0 [ 214.600048][ T6561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 214.601742][ T6561] Call trace: [ 214.602289][ T6561] dump_backtrace+0x0/0x458 [ 214.603015][ T6561] show_stack+0x2c/0x3c [ 214.603744][ T6561] __dump_stack+0x30/0x40 [ 214.604420][ T6561] dump_stack_lvl+0xf4/0x15c [ 214.605096][ T6561] dump_stack+0x1c/0x5c [ 214.605735][ T6561] sysfs_create_dir_ns+0x244/0x264 [ 214.606562][ T6561] kobject_add_internal+0x594/0xc2c [ 214.607333][ T6561] kobject_init_and_add+0x128/0x194 [ 214.608265][ T6561] gfs2_sys_fs_add+0x208/0x428 [ 214.609009][ T6561] gfs2_fill_super+0xe20/0x1a9c [ 214.609824][ T6561] get_tree_bdev+0x35c/0x54c [ 214.610651][ T6561] gfs2_get_tree+0x58/0x1b8 [ 214.611369][ T6561] vfs_get_tree+0x90/0x278 [ 214.612147][ T6561] do_new_mount+0x228/0x804 [ 214.612836][ T6561] path_mount+0x57c/0xfe8 [ 214.613543][ T6561] __arm64_sys_mount+0x488/0x5f8 [ 214.614367][ T6561] invoke_syscall+0x98/0x28c [ 214.615083][ T6561] el0_svc_common+0x13c/0x258 [ 214.615850][ T6561] do_el0_svc+0x5c/0x140 [ 214.616523][ T6561] el0_svc+0x78/0x1d0 [ 214.617150][ T6561] el0t_64_sync_handler+0xcc/0xe4 [ 214.617973][ T6561] el0t_64_sync+0x1a0/0x1a4 [ 214.620255][ T6561] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 214.622657][ T6561] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 214.760225][ T6564] loop1: detected capacity change from 0 to 32768 [ 214.806063][ T6564] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 214.807212][ T6564] CPU: 1 PID: 6564 Comm: syz.1.625 Not tainted syzkaller #0 [ 214.808385][ T6564] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 214.809997][ T6564] Call trace: [ 214.810520][ T6564] dump_backtrace+0x0/0x458 [ 214.811266][ T6564] show_stack+0x2c/0x3c [ 214.811924][ T6564] __dump_stack+0x30/0x40 [ 214.812612][ T6564] dump_stack_lvl+0xf4/0x15c [ 214.813340][ T6564] dump_stack+0x1c/0x5c [ 214.814019][ T6564] sysfs_create_dir_ns+0x244/0x264 [ 214.814787][ T6564] kobject_add_internal+0x594/0xc2c [ 214.815624][ T6564] kobject_init_and_add+0x128/0x194 [ 214.816488][ T6564] gfs2_sys_fs_add+0x208/0x428 [ 214.817338][ T6564] gfs2_fill_super+0xe20/0x1a9c [ 214.818089][ T6564] get_tree_bdev+0x35c/0x54c [ 214.818801][ T6564] gfs2_get_tree+0x58/0x1b8 [ 214.819538][ T6564] vfs_get_tree+0x90/0x278 [ 214.820235][ T6564] do_new_mount+0x228/0x804 [ 214.820918][ T6564] path_mount+0x57c/0xfe8 [ 214.821567][ T6564] __arm64_sys_mount+0x488/0x5f8 [ 214.822296][ T6564] invoke_syscall+0x98/0x28c [ 214.823012][ T6564] el0_svc_common+0x13c/0x258 [ 214.823710][ T6564] do_el0_svc+0x5c/0x140 [ 214.824328][ T6564] el0_svc+0x78/0x1d0 [ 214.824949][ T6564] el0t_64_sync_handler+0xcc/0xe4 [ 214.825707][ T6564] el0t_64_sync+0x1a0/0x1a4 [ 214.828376][ T6564] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 214.830456][ T6564] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 214.963005][ T6567] loop1: detected capacity change from 0 to 32768 [ 215.013874][ T6567] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 215.015137][ T6567] CPU: 0 PID: 6567 Comm: syz.1.626 Not tainted syzkaller #0 [ 215.016274][ T6567] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 215.017971][ T6567] Call trace: [ 215.018490][ T6567] dump_backtrace+0x0/0x458 [ 215.019157][ T6567] show_stack+0x2c/0x3c [ 215.019790][ T6567] __dump_stack+0x30/0x40 [ 215.020479][ T6567] dump_stack_lvl+0xf4/0x15c [ 215.021178][ T6567] dump_stack+0x1c/0x5c [ 215.021887][ T6567] sysfs_create_dir_ns+0x244/0x264 [ 215.022717][ T6567] kobject_add_internal+0x594/0xc2c [ 215.023543][ T6567] kobject_init_and_add+0x128/0x194 [ 215.024362][ T6567] gfs2_sys_fs_add+0x208/0x428 [ 215.025090][ T6567] gfs2_fill_super+0xe20/0x1a9c [ 215.025862][ T6567] get_tree_bdev+0x35c/0x54c [ 215.026580][ T6567] gfs2_get_tree+0x58/0x1b8 [ 215.027285][ T6567] vfs_get_tree+0x90/0x278 [ 215.027957][ T6567] do_new_mount+0x228/0x804 [ 215.028664][ T6567] path_mount+0x57c/0xfe8 [ 215.029347][ T6567] __arm64_sys_mount+0x488/0x5f8 [ 215.030124][ T6567] invoke_syscall+0x98/0x28c [ 215.030886][ T6567] el0_svc_common+0x13c/0x258 [ 215.031677][ T6567] do_el0_svc+0x5c/0x140 [ 215.032365][ T6567] el0_svc+0x78/0x1d0 [ 215.032980][ T6567] el0t_64_sync_handler+0xcc/0xe4 [ 215.033765][ T6567] el0t_64_sync+0x1a0/0x1a4 [ 215.036025][ T6567] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 215.037897][ T6567] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 215.191111][ T6570] loop1: detected capacity change from 0 to 32768 [ 215.248389][ T6570] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 215.249548][ T6570] CPU: 0 PID: 6570 Comm: syz.1.627 Not tainted syzkaller #0 [ 215.250721][ T6570] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 215.252282][ T6570] Call trace: [ 215.252854][ T6570] dump_backtrace+0x0/0x458 [ 215.253669][ T6570] show_stack+0x2c/0x3c [ 215.254346][ T6570] __dump_stack+0x30/0x40 [ 215.255061][ T6570] dump_stack_lvl+0xf4/0x15c [ 215.255761][ T6570] dump_stack+0x1c/0x5c [ 215.256395][ T6570] sysfs_create_dir_ns+0x244/0x264 [ 215.257247][ T6570] kobject_add_internal+0x594/0xc2c [ 215.258082][ T6570] kobject_init_and_add+0x128/0x194 [ 215.258873][ T6570] gfs2_sys_fs_add+0x208/0x428 [ 215.259616][ T6570] gfs2_fill_super+0xe20/0x1a9c [ 215.260365][ T6570] get_tree_bdev+0x35c/0x54c [ 215.261191][ T6570] gfs2_get_tree+0x58/0x1b8 [ 215.261889][ T6570] vfs_get_tree+0x90/0x278 [ 215.262548][ T6570] do_new_mount+0x228/0x804 [ 215.263224][ T6570] path_mount+0x57c/0xfe8 [ 215.263922][ T6570] __arm64_sys_mount+0x488/0x5f8 [ 215.264666][ T6570] invoke_syscall+0x98/0x28c [ 215.265385][ T6570] el0_svc_common+0x13c/0x258 [ 215.266147][ T6570] do_el0_svc+0x5c/0x140 [ 215.266836][ T6570] el0_svc+0x78/0x1d0 [ 215.267447][ T6570] el0t_64_sync_handler+0xcc/0xe4 [ 215.268228][ T6570] el0t_64_sync+0x1a0/0x1a4 [ 215.271228][ T6570] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 215.273226][ T6570] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 215.497965][ T6573] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 215.499193][ T6573] CPU: 1 PID: 6573 Comm: syz.1.628 Not tainted syzkaller #0 [ 215.500302][ T6573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 215.501845][ T6573] Call trace: [ 215.502371][ T6573] dump_backtrace+0x0/0x458 [ 215.503087][ T6573] show_stack+0x2c/0x3c [ 215.503838][ T6573] __dump_stack+0x30/0x40 [ 215.504539][ T6573] dump_stack_lvl+0xf4/0x15c [ 215.505256][ T6573] dump_stack+0x1c/0x5c [ 215.505917][ T6573] sysfs_create_dir_ns+0x244/0x264 [ 215.506764][ T6573] kobject_add_internal+0x594/0xc2c [ 215.507660][ T6573] kobject_init_and_add+0x128/0x194 [ 215.508547][ T6573] gfs2_sys_fs_add+0x208/0x428 [ 215.509301][ T6573] gfs2_fill_super+0xe20/0x1a9c [ 215.510081][ T6573] get_tree_bdev+0x35c/0x54c [ 215.510879][ T6573] gfs2_get_tree+0x58/0x1b8 [ 215.511608][ T6573] vfs_get_tree+0x90/0x278 [ 215.512327][ T6573] do_new_mount+0x228/0x804 [ 215.513044][ T6573] path_mount+0x57c/0xfe8 [ 215.513736][ T6573] __arm64_sys_mount+0x488/0x5f8 [ 215.514518][ T6573] invoke_syscall+0x98/0x28c [ 215.515241][ T6573] el0_svc_common+0x13c/0x258 [ 215.516022][ T6573] do_el0_svc+0x5c/0x140 [ 215.516708][ T6573] el0_svc+0x78/0x1d0 [ 215.517342][ T6573] el0t_64_sync_handler+0xcc/0xe4 [ 215.518193][ T6573] el0t_64_sync+0x1a0/0x1a4 [ 215.551216][ T6573] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 215.562427][ T6573] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 215.743500][ T6576] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 215.744784][ T6576] CPU: 0 PID: 6576 Comm: syz.1.629 Not tainted syzkaller #0 [ 215.745878][ T6576] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 215.747443][ T6576] Call trace: [ 215.747941][ T6576] dump_backtrace+0x0/0x458 [ 215.748743][ T6576] show_stack+0x2c/0x3c [ 215.749370][ T6576] __dump_stack+0x30/0x40 [ 215.750065][ T6576] dump_stack_lvl+0xf4/0x15c [ 215.750806][ T6576] dump_stack+0x1c/0x5c [ 215.751503][ T6576] sysfs_create_dir_ns+0x244/0x264 [ 215.752373][ T6576] kobject_add_internal+0x594/0xc2c [ 215.753182][ T6576] kobject_init_and_add+0x128/0x194 [ 215.753996][ T6576] gfs2_sys_fs_add+0x208/0x428 [ 215.754740][ T6576] gfs2_fill_super+0xe20/0x1a9c [ 215.755469][ T6576] get_tree_bdev+0x35c/0x54c [ 215.756239][ T6576] gfs2_get_tree+0x58/0x1b8 [ 215.756987][ T6576] vfs_get_tree+0x90/0x278 [ 215.757733][ T6576] do_new_mount+0x228/0x804 [ 215.758570][ T6576] path_mount+0x57c/0xfe8 [ 215.759332][ T6576] __arm64_sys_mount+0x488/0x5f8 [ 215.760143][ T6576] invoke_syscall+0x98/0x28c [ 215.761031][ T6576] el0_svc_common+0x13c/0x258 [ 215.761855][ T6576] do_el0_svc+0x5c/0x140 [ 215.762562][ T6576] el0_svc+0x78/0x1d0 [ 215.763231][ T6576] el0t_64_sync_handler+0xcc/0xe4 [ 215.764016][ T6576] el0t_64_sync+0x1a0/0x1a4 [ 215.767565][ T6576] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 215.769991][ T6576] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 215.852146][ T4145] Bluetooth: hci2: command 0x041b tx timeout [ 215.953990][ T6579] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 215.955158][ T6579] CPU: 0 PID: 6579 Comm: syz.1.630 Not tainted syzkaller #0 [ 215.956384][ T6579] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 215.958079][ T6579] Call trace: [ 215.958634][ T6579] dump_backtrace+0x0/0x458 [ 215.959483][ T6579] show_stack+0x2c/0x3c [ 215.960193][ T6579] __dump_stack+0x30/0x40 [ 215.960975][ T6579] dump_stack_lvl+0xf4/0x15c [ 215.961765][ T6579] dump_stack+0x1c/0x5c [ 215.962479][ T6579] sysfs_create_dir_ns+0x244/0x264 [ 215.963466][ T6579] kobject_add_internal+0x594/0xc2c [ 215.964386][ T6579] kobject_init_and_add+0x128/0x194 [ 215.965405][ T6579] gfs2_sys_fs_add+0x208/0x428 [ 215.966291][ T6579] gfs2_fill_super+0xe20/0x1a9c [ 215.967114][ T6579] get_tree_bdev+0x35c/0x54c [ 215.967970][ T6579] gfs2_get_tree+0x58/0x1b8 [ 215.968862][ T6579] vfs_get_tree+0x90/0x278 [ 215.969683][ T6579] do_new_mount+0x228/0x804 [ 215.970456][ T6579] path_mount+0x57c/0xfe8 [ 215.971219][ T6579] __arm64_sys_mount+0x488/0x5f8 [ 215.972102][ T6579] invoke_syscall+0x98/0x28c [ 215.972870][ T6579] el0_svc_common+0x13c/0x258 [ 215.973637][ T6579] do_el0_svc+0x5c/0x140 [ 215.974281][ T6579] el0_svc+0x78/0x1d0 [ 215.974971][ T6579] el0t_64_sync_handler+0xcc/0xe4 [ 215.975816][ T6579] el0t_64_sync+0x1a0/0x1a4 [ 215.977785][ T6579] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 215.979671][ T6579] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 216.130054][ T6582] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 216.131519][ T6582] CPU: 1 PID: 6582 Comm: syz.1.631 Not tainted syzkaller #0 [ 216.132706][ T6582] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 216.134477][ T6582] Call trace: [ 216.135031][ T6582] dump_backtrace+0x0/0x458 [ 216.135817][ T6582] show_stack+0x2c/0x3c [ 216.136553][ T6582] __dump_stack+0x30/0x40 [ 216.137227][ T6582] dump_stack_lvl+0xf4/0x15c [ 216.137976][ T6582] dump_stack+0x1c/0x5c [ 216.138683][ T6582] sysfs_create_dir_ns+0x244/0x264 [ 216.139546][ T6582] kobject_add_internal+0x594/0xc2c [ 216.140362][ T6582] kobject_init_and_add+0x128/0x194 [ 216.141149][ T6582] gfs2_sys_fs_add+0x208/0x428 [ 216.141871][ T6582] gfs2_fill_super+0xe20/0x1a9c [ 216.142583][ T6582] get_tree_bdev+0x35c/0x54c [ 216.143327][ T6582] gfs2_get_tree+0x58/0x1b8 [ 216.143997][ T6582] vfs_get_tree+0x90/0x278 [ 216.144737][ T6582] do_new_mount+0x228/0x804 [ 216.145467][ T6582] path_mount+0x57c/0xfe8 [ 216.146200][ T6582] __arm64_sys_mount+0x488/0x5f8 [ 216.147169][ T6582] invoke_syscall+0x98/0x28c [ 216.148071][ T6582] el0_svc_common+0x13c/0x258 [ 216.148875][ T6582] do_el0_svc+0x5c/0x140 [ 216.149686][ T6582] el0_svc+0x78/0x1d0 [ 216.150448][ T6582] el0t_64_sync_handler+0xcc/0xe4 [ 216.151388][ T6582] el0t_64_sync+0x1a0/0x1a4 [ 216.152327][ T6582] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 216.154693][ T6582] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 216.307169][ T6585] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 216.309973][ T6585] CPU: 0 PID: 6585 Comm: syz.1.632 Not tainted syzkaller #0 [ 216.311160][ T6585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 216.312802][ T6585] Call trace: [ 216.313336][ T6585] dump_backtrace+0x0/0x458 [ 216.314131][ T6585] show_stack+0x2c/0x3c [ 216.314781][ T6585] __dump_stack+0x30/0x40 [ 216.315461][ T6585] dump_stack_lvl+0xf4/0x15c [ 216.316240][ T6585] dump_stack+0x1c/0x5c [ 216.316947][ T6585] sysfs_create_dir_ns+0x244/0x264 [ 216.317764][ T6585] kobject_add_internal+0x594/0xc2c [ 216.318596][ T6585] kobject_init_and_add+0x128/0x194 [ 216.319408][ T6585] gfs2_sys_fs_add+0x208/0x428 [ 216.320105][ T6585] gfs2_fill_super+0xe20/0x1a9c [ 216.320856][ T6585] get_tree_bdev+0x35c/0x54c [ 216.321596][ T6585] gfs2_get_tree+0x58/0x1b8 [ 216.322316][ T6585] vfs_get_tree+0x90/0x278 [ 216.323020][ T6585] do_new_mount+0x228/0x804 [ 216.323720][ T6585] path_mount+0x57c/0xfe8 [ 216.324446][ T6585] __arm64_sys_mount+0x488/0x5f8 [ 216.325228][ T6585] invoke_syscall+0x98/0x28c [ 216.325967][ T6585] el0_svc_common+0x13c/0x258 [ 216.326700][ T6585] do_el0_svc+0x5c/0x140 [ 216.327425][ T6585] el0_svc+0x78/0x1d0 [ 216.328063][ T6585] el0t_64_sync_handler+0xcc/0xe4 [ 216.328879][ T6585] el0t_64_sync+0x1a0/0x1a4 [ 216.331766][ T6585] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 216.333916][ T6585] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 216.543504][ T6588] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 216.545289][ T6588] CPU: 1 PID: 6588 Comm: syz.1.633 Not tainted syzkaller #0 [ 216.546509][ T6588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 216.548179][ T6588] Call trace: [ 216.548797][ T6588] dump_backtrace+0x0/0x458 [ 216.549583][ T6588] show_stack+0x2c/0x3c [ 216.550283][ T6588] __dump_stack+0x30/0x40 [ 216.550952][ T6588] dump_stack_lvl+0xf4/0x15c [ 216.551684][ T6588] dump_stack+0x1c/0x5c [ 216.552423][ T6588] sysfs_create_dir_ns+0x244/0x264 [ 216.553389][ T6588] kobject_add_internal+0x594/0xc2c [ 216.554328][ T6588] kobject_init_and_add+0x128/0x194 [ 216.555222][ T6588] gfs2_sys_fs_add+0x208/0x428 [ 216.556051][ T6588] gfs2_fill_super+0xe20/0x1a9c [ 216.556945][ T6588] get_tree_bdev+0x35c/0x54c [ 216.557795][ T6588] gfs2_get_tree+0x58/0x1b8 [ 216.558611][ T6588] vfs_get_tree+0x90/0x278 [ 216.559349][ T6588] do_new_mount+0x228/0x804 [ 216.560061][ T6588] path_mount+0x57c/0xfe8 [ 216.560699][ T6588] __arm64_sys_mount+0x488/0x5f8 [ 216.561509][ T6588] invoke_syscall+0x98/0x28c [ 216.562239][ T6588] el0_svc_common+0x13c/0x258 [ 216.562950][ T6588] do_el0_svc+0x5c/0x140 [ 216.563592][ T6588] el0_svc+0x78/0x1d0 [ 216.564329][ T6588] el0t_64_sync_handler+0xcc/0xe4 [ 216.565128][ T6588] el0t_64_sync+0x1a0/0x1a4 [ 216.567678][ T6588] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 216.569688][ T6588] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 216.753448][ T6591] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 216.754816][ T6591] CPU: 0 PID: 6591 Comm: syz.1.634 Not tainted syzkaller #0 [ 216.756136][ T6591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 216.757876][ T6591] Call trace: [ 216.758383][ T6591] dump_backtrace+0x0/0x458 [ 216.759153][ T6591] show_stack+0x2c/0x3c [ 216.759858][ T6591] __dump_stack+0x30/0x40 [ 216.760572][ T6591] dump_stack_lvl+0xf4/0x15c [ 216.761345][ T6591] dump_stack+0x1c/0x5c [ 216.762013][ T6591] sysfs_create_dir_ns+0x244/0x264 [ 216.762817][ T6591] kobject_add_internal+0x594/0xc2c [ 216.763664][ T6591] kobject_init_and_add+0x128/0x194 [ 216.764498][ T6591] gfs2_sys_fs_add+0x208/0x428 [ 216.765290][ T6591] gfs2_fill_super+0xe20/0x1a9c [ 216.766154][ T6591] get_tree_bdev+0x35c/0x54c [ 216.766930][ T6591] gfs2_get_tree+0x58/0x1b8 [ 216.767678][ T6591] vfs_get_tree+0x90/0x278 [ 216.768465][ T6591] do_new_mount+0x228/0x804 [ 216.769261][ T6591] path_mount+0x57c/0xfe8 [ 216.770037][ T6591] __arm64_sys_mount+0x488/0x5f8 [ 216.770963][ T6591] invoke_syscall+0x98/0x28c [ 216.771866][ T6591] el0_svc_common+0x13c/0x258 [ 216.772797][ T6591] do_el0_svc+0x5c/0x140 [ 216.773616][ T6591] el0_svc+0x78/0x1d0 [ 216.774363][ T6591] el0t_64_sync_handler+0xcc/0xe4 [ 216.775287][ T6591] el0t_64_sync+0x1a0/0x1a4 [ 216.776664][ T6591] kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 216.778838][ T6591] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 216.802203][ T27] INFO: task syz-executor:4562 blocked for more than 143 seconds. [ 216.803540][ T27] Not tainted syzkaller #0 [ 216.804342][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 216.805690][ T27] task:syz-executor state:D stack: 0 pid: 4562 ppid: 1 flags:0x00000001 [ 216.807070][ T27] Call trace: [ 216.807591][ T27] __switch_to+0x2f4/0x540 [ 216.808244][ T27] __schedule+0xe20/0x1c6c [ 216.809047][ T27] schedule+0x11c/0x1c8 [ 216.809808][ T27] bit_wait+0x1c/0xac [ 216.810507][ T27] out_of_line_wait_on_bit+0x16c/0x218 [ 216.811443][ T27] gfs2_glock_nq+0x8dc/0x13d0 [ 216.813048][ T27] __gfs2_lookup+0x120/0x28c [ 216.813761][ T27] gfs2_lookup+0x2c/0x3c [ 216.814540][ T27] __lookup_slow+0x25c/0x39c [ 216.815358][ T27] lookup_slow+0x60/0x84 [ 216.816142][ T27] walk_component+0x2b8/0x3b8 [ 216.816855][ T27] path_lookupat+0x168/0x3f0 [ 216.817560][ T27] filename_lookup+0x1c8/0x478 [ 216.818345][ T27] user_path_at_empty+0x5c/0x1a0 [ 216.819075][ T27] __arm64_sys_umount+0xf8/0x184 [ 216.819893][ T27] invoke_syscall+0x98/0x28c [ 216.820682][ T27] el0_svc_common+0x13c/0x258 [ 216.821443][ T27] do_el0_svc+0x5c/0x140 [ 216.822982][ T27] el0_svc+0x78/0x1d0 [ 216.823702][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 216.824458][ T27] el0t_64_sync+0x1a0/0x1a4 [ 216.825215][ T27] [ 216.825215][ T27] Showing all locks held in the system: [ 216.826362][ T27] 1 lock held by khungtaskd/27: [ 216.827081][ T27] #0: ffff800014561460 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 216.828522][ T27] 2 locks held by getty/3800: [ 216.829201][ T27] #0: ffff0000d48f0098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 216.830679][ T27] #1: ffff80001bf7b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf90 [ 216.844402][ T27] 2 locks held by kworker/0:16/4143: [ 216.845376][ T27] #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x67c/0x1178 [ 216.846996][ T27] #1: ffff80001f567c40 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x6c0/0x1178 [ 216.849033][ T27] 3 locks held by kworker/0:18/4146: [ 216.849826][ T27] #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x67c/0x1178 [ 216.851448][ T27] #1: ffff80001f587c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6c0/0x1178 [ 216.862063][ T27] #2: ffff0000c8dd0240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d8/0x27c4 [ 216.863730][ T27] 1 lock held by syz-executor/4562: [ 216.871589][ T27] #0: ffff0000e9878818 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 [ 216.873441][ T27] 2 locks held by syz.1.635/6594: [ 216.874324][ T27] [ 216.874843][ T27] ============================================= [ 216.874843][ T27] [ 216.876371][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 216.877448][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 216.878574][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 216.880250][ T27] Call trace: [ 216.880748][ T27] dump_backtrace+0x0/0x458 [ 216.881533][ T27] show_stack+0x2c/0x3c [ 216.882166][ T27] __dump_stack+0x30/0x40 [ 216.882886][ T27] dump_stack_lvl+0xf4/0x15c [ 216.883732][ T27] dump_stack+0x1c/0x5c [ 216.884442][ T27] panic+0x2fc/0x860 [ 216.885120][ T27] hung_task_panic+0x0/0x2c [ 216.885873][ T27] kthread+0x37c/0x460 [ 216.886549][ T27] ret_from_fork+0x10/0x20 [ 216.887223][ T27] SMP: stopping secondary CPUs [ 216.888051][ T27] Kernel Offset: disabled [ 216.888770][ T27] CPU features: 0xa,000003c1,7d33ffd9 [ 216.889795][ T27] Memory Limit: none [ 217.221056][ T27] Rebooting in 86400 seconds..