oogle Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.490489][ T6368] Call trace: [ 222.491032][ T6368] dump_backtrace+0x0/0x458 [ 222.491877][ T6368] show_stack+0x2c/0x3c [ 222.492562][ T6368] __dump_stack+0x30/0x40 [ 222.493256][ T6368] dump_stack_lvl+0xf4/0x15c [ 222.494042][ T6368] dump_stack+0x1c/0x5c [ 222.494726][ T6368] sysfs_create_dir_ns+0x244/0x264 [ 222.495574][ T6368] kobject_add_internal+0x5ac/0xc3c [ 222.496572][ T6368] kobject_init_and_add+0x124/0x190 [ 222.497415][ T6368] gfs2_sys_fs_add+0x200/0x41c [ 222.498154][ T6368] gfs2_fill_super+0xddc/0x1a18 [ 222.498956][ T6368] get_tree_bdev+0x358/0x544 [ 222.499719][ T6368] gfs2_get_tree+0x54/0x1b4 [ 222.500521][ T6368] vfs_get_tree+0x90/0x274 [ 222.501227][ T6368] do_new_mount+0x228/0x810 [ 222.501938][ T6368] path_mount+0x5bc/0x1008 [ 222.502695][ T6368] __arm64_sys_mount+0x514/0x5f0 [ 222.503470][ T6368] invoke_syscall+0x98/0x2b0 [ 222.504226][ T6368] el0_svc_common+0x138/0x258 [ 222.504925][ T6368] do_el0_svc+0x58/0x13c [ 222.505640][ T6368] el0_svc+0x78/0x1d0 [ 222.506312][ T6368] el0t_64_sync_handler+0xcc/0xe4 [ 222.507145][ T6368] el0t_64_sync+0x1a0/0x1a4 [ 222.508867][ T6368] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.510783][ T6368] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.692980][ T6370] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.697853][ T6370] CPU: 1 PID: 6370 Comm: syz.1.626 Not tainted syzkaller #0 [ 222.699054][ T6370] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.700526][ T6370] Call trace: [ 222.701024][ T6370] dump_backtrace+0x0/0x458 [ 222.701757][ T6370] show_stack+0x2c/0x3c [ 222.702388][ T6370] __dump_stack+0x30/0x40 [ 222.703052][ T6370] dump_stack_lvl+0xf4/0x15c [ 222.703891][ T6370] dump_stack+0x1c/0x5c [ 222.704576][ T6370] sysfs_create_dir_ns+0x244/0x264 [ 222.705401][ T6370] kobject_add_internal+0x5ac/0xc3c [ 222.706265][ T6370] kobject_init_and_add+0x124/0x190 [ 222.707073][ T6370] gfs2_sys_fs_add+0x200/0x41c [ 222.707867][ T6370] gfs2_fill_super+0xddc/0x1a18 [ 222.708705][ T6370] get_tree_bdev+0x358/0x544 [ 222.709390][ T6370] gfs2_get_tree+0x54/0x1b4 [ 222.710157][ T6370] vfs_get_tree+0x90/0x274 [ 222.710923][ T6370] do_new_mount+0x228/0x810 [ 222.711680][ T6370] path_mount+0x5bc/0x1008 [ 222.712422][ T6370] __arm64_sys_mount+0x514/0x5f0 [ 222.713146][ T6370] invoke_syscall+0x98/0x2b0 [ 222.713918][ T6370] el0_svc_common+0x138/0x258 [ 222.714754][ T6370] do_el0_svc+0x58/0x13c [ 222.715501][ T6370] el0_svc+0x78/0x1d0 [ 222.716260][ T6370] el0t_64_sync_handler+0xcc/0xe4 [ 222.717058][ T6370] el0t_64_sync+0x1a0/0x1a4 [ 222.718041][ T6370] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.720628][ T6370] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:42 executed programs: 613 [ 222.914650][ T6372] set_capacity_and_notify: 8 callbacks suppressed [ 222.914662][ T6372] loop1: detected capacity change from 0 to 32768 [ 222.959573][ T6372] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.960616][ T6372] CPU: 0 PID: 6372 Comm: syz.1.627 Not tainted syzkaller #0 [ 222.961599][ T6372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.963284][ T6372] Call trace: [ 222.963816][ T6372] dump_backtrace+0x0/0x458 [ 222.964528][ T6372] show_stack+0x2c/0x3c [ 222.965142][ T6372] __dump_stack+0x30/0x40 [ 222.965823][ T6372] dump_stack_lvl+0xf4/0x15c [ 222.966507][ T6372] dump_stack+0x1c/0x5c [ 222.967172][ T6372] sysfs_create_dir_ns+0x244/0x264 [ 222.967945][ T6372] kobject_add_internal+0x5ac/0xc3c [ 222.968791][ T6372] kobject_init_and_add+0x124/0x190 [ 222.969532][ T6372] gfs2_sys_fs_add+0x200/0x41c [ 222.970229][ T6372] gfs2_fill_super+0xddc/0x1a18 [ 222.971122][ T6372] get_tree_bdev+0x358/0x544 [ 222.971791][ T6372] gfs2_get_tree+0x54/0x1b4 [ 222.972458][ T6372] vfs_get_tree+0x90/0x274 [ 222.973148][ T6372] do_new_mount+0x228/0x810 [ 222.973831][ T6372] path_mount+0x5bc/0x1008 [ 222.974532][ T6372] __arm64_sys_mount+0x514/0x5f0 [ 222.975359][ T6372] invoke_syscall+0x98/0x2b0 [ 222.976071][ T6372] el0_svc_common+0x138/0x258 [ 222.976809][ T6372] do_el0_svc+0x58/0x13c [ 222.977322][ T6372] el0_svc+0x78/0x1d0 [ 222.977843][ T6372] el0t_64_sync_handler+0xcc/0xe4 [ 222.978619][ T6372] el0t_64_sync+0x1a0/0x1a4 [ 222.984245][ T6372] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.986235][ T6372] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.122417][ T6374] loop1: detected capacity change from 0 to 32768 [ 223.202701][ T6374] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.204319][ T6374] CPU: 1 PID: 6374 Comm: syz.1.628 Not tainted syzkaller #0 [ 223.205522][ T6374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.207054][ T6374] Call trace: [ 223.207560][ T6374] dump_backtrace+0x0/0x458 [ 223.208185][ T6374] show_stack+0x2c/0x3c [ 223.208817][ T6374] __dump_stack+0x30/0x40 [ 223.209498][ T6374] dump_stack_lvl+0xf4/0x15c [ 223.210132][ T6374] dump_stack+0x1c/0x5c [ 223.210841][ T6374] sysfs_create_dir_ns+0x244/0x264 [ 223.211731][ T6374] kobject_add_internal+0x5ac/0xc3c [ 223.212612][ T6374] kobject_init_and_add+0x124/0x190 [ 223.213457][ T6374] gfs2_sys_fs_add+0x200/0x41c [ 223.214223][ T6374] gfs2_fill_super+0xddc/0x1a18 [ 223.215041][ T6374] get_tree_bdev+0x358/0x544 [ 223.215850][ T6374] gfs2_get_tree+0x54/0x1b4 [ 223.216661][ T6374] vfs_get_tree+0x90/0x274 [ 223.217449][ T6374] do_new_mount+0x228/0x810 [ 223.218175][ T6374] path_mount+0x5bc/0x1008 [ 223.218963][ T6374] __arm64_sys_mount+0x514/0x5f0 [ 223.219803][ T6374] invoke_syscall+0x98/0x2b0 [ 223.220581][ T6374] el0_svc_common+0x138/0x258 [ 223.221401][ T6374] do_el0_svc+0x58/0x13c [ 223.222066][ T6374] el0_svc+0x78/0x1d0 [ 223.222712][ T6374] el0t_64_sync_handler+0xcc/0xe4 [ 223.223584][ T6374] el0t_64_sync+0x1a0/0x1a4 [ 223.227416][ T6374] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.229902][ T6374] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.370469][ T6376] loop1: detected capacity change from 0 to 32768 [ 223.373154][ T6376] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.374351][ T6376] CPU: 1 PID: 6376 Comm: syz.1.629 Not tainted syzkaller #0 [ 223.375407][ T6376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.376905][ T6376] Call trace: [ 223.377378][ T6376] dump_backtrace+0x0/0x458 [ 223.378121][ T6376] show_stack+0x2c/0x3c [ 223.378766][ T6376] __dump_stack+0x30/0x40 [ 223.379594][ T6376] dump_stack_lvl+0xf4/0x15c [ 223.380431][ T6376] dump_stack+0x1c/0x5c [ 223.381129][ T6376] sysfs_create_dir_ns+0x244/0x264 [ 223.381977][ T6376] kobject_add_internal+0x5ac/0xc3c [ 223.382817][ T6376] kobject_init_and_add+0x124/0x190 [ 223.383729][ T6376] gfs2_sys_fs_add+0x200/0x41c [ 223.384518][ T6376] gfs2_fill_super+0xddc/0x1a18 [ 223.385390][ T6376] get_tree_bdev+0x358/0x544 [ 223.386175][ T6376] gfs2_get_tree+0x54/0x1b4 [ 223.386874][ T6376] vfs_get_tree+0x90/0x274 [ 223.387586][ T6376] do_new_mount+0x228/0x810 [ 223.388252][ T6376] path_mount+0x5bc/0x1008 [ 223.388899][ T6376] __arm64_sys_mount+0x514/0x5f0 [ 223.389630][ T6376] invoke_syscall+0x98/0x2b0 [ 223.390382][ T6376] el0_svc_common+0x138/0x258 [ 223.391241][ T6376] do_el0_svc+0x58/0x13c [ 223.391884][ T6376] el0_svc+0x78/0x1d0 [ 223.392515][ T6376] el0t_64_sync_handler+0xcc/0xe4 [ 223.393248][ T6376] el0t_64_sync+0x1a0/0x1a4 [ 223.398543][ T6376] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.400594][ T6376] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.458328][ T4206] Bluetooth: hci2: command 0x041b tx timeout [ 223.546935][ T6378] loop1: detected capacity change from 0 to 32768 [ 223.643411][ T6378] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.644710][ T6378] CPU: 0 PID: 6378 Comm: syz.1.630 Not tainted syzkaller #0 [ 223.645843][ T6378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.647372][ T6378] Call trace: [ 223.647834][ T6378] dump_backtrace+0x0/0x458 [ 223.648529][ T6378] show_stack+0x2c/0x3c [ 223.649230][ T6378] __dump_stack+0x30/0x40 [ 223.649901][ T6378] dump_stack_lvl+0xf4/0x15c [ 223.650602][ T6378] dump_stack+0x1c/0x5c [ 223.651307][ T6378] sysfs_create_dir_ns+0x244/0x264 [ 223.652112][ T6378] kobject_add_internal+0x5ac/0xc3c [ 223.652995][ T6378] kobject_init_and_add+0x124/0x190 [ 223.653792][ T6378] gfs2_sys_fs_add+0x200/0x41c [ 223.654516][ T6378] gfs2_fill_super+0xddc/0x1a18 [ 223.655246][ T6378] get_tree_bdev+0x358/0x544 [ 223.655958][ T6378] gfs2_get_tree+0x54/0x1b4 [ 223.656646][ T6378] vfs_get_tree+0x90/0x274 [ 223.657340][ T6378] do_new_mount+0x228/0x810 [ 223.658065][ T6378] path_mount+0x5bc/0x1008 [ 223.658864][ T6378] __arm64_sys_mount+0x514/0x5f0 [ 223.659645][ T6378] invoke_syscall+0x98/0x2b0 [ 223.660344][ T6378] el0_svc_common+0x138/0x258 [ 223.661124][ T6378] do_el0_svc+0x58/0x13c [ 223.661880][ T6378] el0_svc+0x78/0x1d0 [ 223.662503][ T6378] el0t_64_sync_handler+0xcc/0xe4 [ 223.663302][ T6378] el0t_64_sync+0x1a0/0x1a4 [ 223.665044][ T6378] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.667162][ T6378] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.812398][ T6380] loop1: detected capacity change from 0 to 32768 [ 223.819595][ T6380] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.820928][ T6380] CPU: 1 PID: 6380 Comm: syz.1.631 Not tainted syzkaller #0 [ 223.822180][ T6380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.823739][ T6380] Call trace: [ 223.824244][ T6380] dump_backtrace+0x0/0x458 [ 223.825001][ T6380] show_stack+0x2c/0x3c [ 223.825669][ T6380] __dump_stack+0x30/0x40 [ 223.826386][ T6380] dump_stack_lvl+0xf4/0x15c [ 223.827123][ T6380] dump_stack+0x1c/0x5c [ 223.827762][ T6380] sysfs_create_dir_ns+0x244/0x264 [ 223.828572][ T6380] kobject_add_internal+0x5ac/0xc3c [ 223.829311][ T6380] kobject_init_and_add+0x124/0x190 [ 223.830072][ T6380] gfs2_sys_fs_add+0x200/0x41c [ 223.830876][ T6380] gfs2_fill_super+0xddc/0x1a18 [ 223.831659][ T6380] get_tree_bdev+0x358/0x544 [ 223.832385][ T6380] gfs2_get_tree+0x54/0x1b4 [ 223.833152][ T6380] vfs_get_tree+0x90/0x274 [ 223.833899][ T6380] do_new_mount+0x228/0x810 [ 223.834652][ T6380] path_mount+0x5bc/0x1008 [ 223.835361][ T6380] __arm64_sys_mount+0x514/0x5f0 [ 223.836219][ T6380] invoke_syscall+0x98/0x2b0 [ 223.837004][ T6380] el0_svc_common+0x138/0x258 [ 223.837787][ T6380] do_el0_svc+0x58/0x13c [ 223.838514][ T6380] el0_svc+0x78/0x1d0 [ 223.839152][ T6380] el0t_64_sync_handler+0xcc/0xe4 [ 223.839876][ T6380] el0t_64_sync+0x1a0/0x1a4 [ 223.841100][ T6380] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.843100][ T6380] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.973324][ T6382] loop1: detected capacity change from 0 to 32768 [ 224.019642][ T6382] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.020777][ T6382] CPU: 1 PID: 6382 Comm: syz.1.632 Not tainted syzkaller #0 [ 224.021893][ T6382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.023483][ T6382] Call trace: [ 224.024031][ T6382] dump_backtrace+0x0/0x458 [ 224.024693][ T6382] show_stack+0x2c/0x3c [ 224.025359][ T6382] __dump_stack+0x30/0x40 [ 224.026098][ T6382] dump_stack_lvl+0xf4/0x15c [ 224.026879][ T6382] dump_stack+0x1c/0x5c [ 224.027601][ T6382] sysfs_create_dir_ns+0x244/0x264 [ 224.028490][ T6382] kobject_add_internal+0x5ac/0xc3c [ 224.029367][ T6382] kobject_init_and_add+0x124/0x190 [ 224.030240][ T6382] gfs2_sys_fs_add+0x200/0x41c [ 224.030927][ T6382] gfs2_fill_super+0xddc/0x1a18 [ 224.031675][ T6382] get_tree_bdev+0x358/0x544 [ 224.032480][ T6382] gfs2_get_tree+0x54/0x1b4 [ 224.033238][ T6382] vfs_get_tree+0x90/0x274 [ 224.033958][ T6382] do_new_mount+0x228/0x810 [ 224.034679][ T6382] path_mount+0x5bc/0x1008 [ 224.035366][ T6382] __arm64_sys_mount+0x514/0x5f0 [ 224.036182][ T6382] invoke_syscall+0x98/0x2b0 [ 224.037013][ T6382] el0_svc_common+0x138/0x258 [ 224.037805][ T6382] do_el0_svc+0x58/0x13c [ 224.038521][ T6382] el0_svc+0x78/0x1d0 [ 224.039161][ T6382] el0t_64_sync_handler+0xcc/0xe4 [ 224.039971][ T6382] el0t_64_sync+0x1a0/0x1a4 [ 224.040910][ T6382] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.043058][ T6382] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.177993][ T6384] loop1: detected capacity change from 0 to 32768 [ 224.220176][ T6384] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.221381][ T6384] CPU: 0 PID: 6384 Comm: syz.1.633 Not tainted syzkaller #0 [ 224.222506][ T6384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.224185][ T6384] Call trace: [ 224.224762][ T6384] dump_backtrace+0x0/0x458 [ 224.225530][ T6384] show_stack+0x2c/0x3c [ 224.226165][ T6384] __dump_stack+0x30/0x40 [ 224.226822][ T6384] dump_stack_lvl+0xf4/0x15c [ 224.227546][ T6384] dump_stack+0x1c/0x5c [ 224.228268][ T6384] sysfs_create_dir_ns+0x244/0x264 [ 224.229116][ T6384] kobject_add_internal+0x5ac/0xc3c [ 224.230001][ T6384] kobject_init_and_add+0x124/0x190 [ 224.230869][ T6384] gfs2_sys_fs_add+0x200/0x41c [ 224.231672][ T6384] gfs2_fill_super+0xddc/0x1a18 [ 224.232412][ T6384] get_tree_bdev+0x358/0x544 [ 224.233156][ T6384] gfs2_get_tree+0x54/0x1b4 [ 224.233914][ T6384] vfs_get_tree+0x90/0x274 [ 224.234656][ T6384] do_new_mount+0x228/0x810 [ 224.235455][ T6384] path_mount+0x5bc/0x1008 [ 224.236151][ T6384] __arm64_sys_mount+0x514/0x5f0 [ 224.236937][ T6384] invoke_syscall+0x98/0x2b0 [ 224.237663][ T6384] el0_svc_common+0x138/0x258 [ 224.238349][ T6384] do_el0_svc+0x58/0x13c [ 224.239028][ T6384] el0_svc+0x78/0x1d0 [ 224.239707][ T6384] el0t_64_sync_handler+0xcc/0xe4 [ 224.240472][ T6384] el0t_64_sync+0x1a0/0x1a4 [ 224.242056][ T6384] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.244258][ T6384] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.374613][ T6386] loop1: detected capacity change from 0 to 32768 [ 224.422397][ T6386] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.424717][ T6386] CPU: 1 PID: 6386 Comm: syz.1.634 Not tainted syzkaller #0 [ 224.425916][ T6386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.427466][ T6386] Call trace: [ 224.427980][ T6386] dump_backtrace+0x0/0x458 [ 224.429305][ T6386] show_stack+0x2c/0x3c [ 224.430000][ T6386] __dump_stack+0x30/0x40 [ 224.430717][ T6386] dump_stack_lvl+0xf4/0x15c [ 224.431433][ T6386] dump_stack+0x1c/0x5c [ 224.432044][ T6386] sysfs_create_dir_ns+0x244/0x264 [ 224.432919][ T6386] kobject_add_internal+0x5ac/0xc3c [ 224.433833][ T6386] kobject_init_and_add+0x124/0x190 [ 224.434678][ T6386] gfs2_sys_fs_add+0x200/0x41c [ 224.435542][ T6386] gfs2_fill_super+0xddc/0x1a18 [ 224.436370][ T6386] get_tree_bdev+0x358/0x544 [ 224.437073][ T6386] gfs2_get_tree+0x54/0x1b4 [ 224.437732][ T6386] vfs_get_tree+0x90/0x274 [ 224.438360][ T6386] do_new_mount+0x228/0x810 [ 224.439057][ T6386] path_mount+0x5bc/0x1008 [ 224.439715][ T6386] __arm64_sys_mount+0x514/0x5f0 [ 224.440421][ T6386] invoke_syscall+0x98/0x2b0 [ 224.441126][ T6386] el0_svc_common+0x138/0x258 [ 224.441786][ T6386] do_el0_svc+0x58/0x13c [ 224.442391][ T6386] el0_svc+0x78/0x1d0 [ 224.442946][ T6386] el0t_64_sync_handler+0xcc/0xe4 [ 224.443692][ T6386] el0t_64_sync+0x1a0/0x1a4 [ 224.444521][ T6386] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.446497][ T6386] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.592942][ T6388] loop1: detected capacity change from 0 to 32768 [ 224.629600][ T6388] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.630762][ T6388] CPU: 0 PID: 6388 Comm: syz.1.635 Not tainted syzkaller #0 [ 224.631845][ T6388] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.633271][ T6388] Call trace: [ 224.633703][ T6388] dump_backtrace+0x0/0x458 [ 224.634325][ T6388] show_stack+0x2c/0x3c [ 224.634927][ T6388] __dump_stack+0x30/0x40 [ 224.635531][ T6388] dump_stack_lvl+0xf4/0x15c [ 224.636169][ T6388] dump_stack+0x1c/0x5c [ 224.636728][ T6388] sysfs_create_dir_ns+0x244/0x264 [ 224.637529][ T6388] kobject_add_internal+0x5ac/0xc3c [ 224.638315][ T6388] kobject_init_and_add+0x124/0x190 [ 224.639103][ T6388] gfs2_sys_fs_add+0x200/0x41c [ 224.639899][ T6388] gfs2_fill_super+0xddc/0x1a18 [ 224.640756][ T6388] get_tree_bdev+0x358/0x544 [ 224.641521][ T6388] gfs2_get_tree+0x54/0x1b4 [ 224.642235][ T6388] vfs_get_tree+0x90/0x274 [ 224.642956][ T6388] do_new_mount+0x228/0x810 [ 224.643656][ T6388] path_mount+0x5bc/0x1008 [ 224.644374][ T6388] __arm64_sys_mount+0x514/0x5f0 [ 224.645158][ T6388] invoke_syscall+0x98/0x2b0 [ 224.645892][ T6388] el0_svc_common+0x138/0x258 [ 224.646682][ T6388] do_el0_svc+0x58/0x13c [ 224.647428][ T6388] el0_svc+0x78/0x1d0 [ 224.648050][ T6388] el0t_64_sync_handler+0xcc/0xe4 [ 224.648866][ T6388] el0t_64_sync+0x1a0/0x1a4 [ 224.651143][ T6388] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.653257][ T6388] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.785698][ T6390] loop1: detected capacity change from 0 to 32768 [ 224.793343][ T6390] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.794530][ T6390] CPU: 1 PID: 6390 Comm: syz.1.636 Not tainted syzkaller #0 [ 224.795650][ T6390] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.797278][ T6390] Call trace: [ 224.797798][ T6390] dump_backtrace+0x0/0x458 [ 224.798549][ T6390] show_stack+0x2c/0x3c [ 224.799233][ T6390] __dump_stack+0x30/0x40 [ 224.799892][ T6390] dump_stack_lvl+0xf4/0x15c [ 224.800635][ T6390] dump_stack+0x1c/0x5c [ 224.801285][ T6390] sysfs_create_dir_ns+0x244/0x264 [ 224.802278][ T6390] kobject_add_internal+0x5ac/0xc3c [ 224.803187][ T6390] kobject_init_and_add+0x124/0x190 [ 224.804069][ T6390] gfs2_sys_fs_add+0x200/0x41c [ 224.804844][ T6390] gfs2_fill_super+0xddc/0x1a18 [ 224.805606][ T6390] get_tree_bdev+0x358/0x544 [ 224.806301][ T6390] gfs2_get_tree+0x54/0x1b4 [ 224.807042][ T6390] vfs_get_tree+0x90/0x274 [ 224.807822][ T6390] do_new_mount+0x228/0x810 [ 224.808596][ T6390] path_mount+0x5bc/0x1008 [ 224.809351][ T6390] __arm64_sys_mount+0x514/0x5f0 [ 224.810199][ T6390] invoke_syscall+0x98/0x2b0 [ 224.810903][ T6390] el0_svc_common+0x138/0x258 [ 224.811601][ T6390] do_el0_svc+0x58/0x13c [ 224.812332][ T6390] el0_svc+0x78/0x1d0 [ 224.812977][ T6390] el0t_64_sync_handler+0xcc/0xe4 [ 224.813794][ T6390] el0t_64_sync+0x1a0/0x1a4 [ 224.814700][ T6390] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.816638][ T6390] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.040938][ T6392] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.042272][ T6392] CPU: 0 PID: 6392 Comm: syz.1.637 Not tainted syzkaller #0 [ 225.043398][ T6392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.044836][ T6392] Call trace: [ 225.045323][ T6392] dump_backtrace+0x0/0x458 [ 225.046072][ T6392] show_stack+0x2c/0x3c [ 225.046758][ T6392] __dump_stack+0x30/0x40 [ 225.047465][ T6392] dump_stack_lvl+0xf4/0x15c [ 225.048203][ T6392] dump_stack+0x1c/0x5c [ 225.048853][ T6392] sysfs_create_dir_ns+0x244/0x264 [ 225.049660][ T6392] kobject_add_internal+0x5ac/0xc3c [ 225.050460][ T6392] kobject_init_and_add+0x124/0x190 [ 225.051347][ T6392] gfs2_sys_fs_add+0x200/0x41c [ 225.052112][ T6392] gfs2_fill_super+0xddc/0x1a18 [ 225.052968][ T6392] get_tree_bdev+0x358/0x544 [ 225.053814][ T6392] gfs2_get_tree+0x54/0x1b4 [ 225.054578][ T6392] vfs_get_tree+0x90/0x274 [ 225.055283][ T6392] do_new_mount+0x228/0x810 [ 225.055978][ T6392] path_mount+0x5bc/0x1008 [ 225.056739][ T6392] __arm64_sys_mount+0x514/0x5f0 [ 225.057595][ T6392] invoke_syscall+0x98/0x2b0 [ 225.058368][ T6392] el0_svc_common+0x138/0x258 [ 225.059108][ T6392] do_el0_svc+0x58/0x13c [ 225.059766][ T6392] el0_svc+0x78/0x1d0 [ 225.060498][ T6392] el0t_64_sync_handler+0xcc/0xe4 [ 225.061349][ T6392] el0t_64_sync+0x1a0/0x1a4 [ 225.063902][ T6392] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.065950][ T6392] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.239511][ T6394] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.240692][ T6394] CPU: 0 PID: 6394 Comm: syz.1.638 Not tainted syzkaller #0 [ 225.241895][ T6394] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.243409][ T6394] Call trace: [ 225.243924][ T6394] dump_backtrace+0x0/0x458 [ 225.244672][ T6394] show_stack+0x2c/0x3c [ 225.245345][ T6394] __dump_stack+0x30/0x40 [ 225.246013][ T6394] dump_stack_lvl+0xf4/0x15c [ 225.246769][ T6394] dump_stack+0x1c/0x5c [ 225.247366][ T6394] sysfs_create_dir_ns+0x244/0x264 [ 225.248202][ T6394] kobject_add_internal+0x5ac/0xc3c [ 225.249022][ T6394] kobject_init_and_add+0x124/0x190 [ 225.249947][ T6394] gfs2_sys_fs_add+0x200/0x41c [ 225.250704][ T6394] gfs2_fill_super+0xddc/0x1a18 [ 225.251437][ T6394] get_tree_bdev+0x358/0x544 [ 225.252112][ T6394] gfs2_get_tree+0x54/0x1b4 [ 225.252784][ T6394] vfs_get_tree+0x90/0x274 [ 225.253419][ T6394] do_new_mount+0x228/0x810 [ 225.254095][ T6394] path_mount+0x5bc/0x1008 [ 225.254753][ T6394] __arm64_sys_mount+0x514/0x5f0 [ 225.255554][ T6394] invoke_syscall+0x98/0x2b0 [ 225.256306][ T6394] el0_svc_common+0x138/0x258 [ 225.257055][ T6394] do_el0_svc+0x58/0x13c [ 225.257758][ T6394] el0_svc+0x78/0x1d0 [ 225.258361][ T6394] el0t_64_sync_handler+0xcc/0xe4 [ 225.259086][ T6394] el0t_64_sync+0x1a0/0x1a4 [ 225.261321][ T6394] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.263259][ T6394] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.403218][ T6396] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.404481][ T6396] CPU: 1 PID: 6396 Comm: syz.1.639 Not tainted syzkaller #0 [ 225.405647][ T6396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.407405][ T6396] Call trace: [ 225.407908][ T6396] dump_backtrace+0x0/0x458 [ 225.408678][ T6396] show_stack+0x2c/0x3c [ 225.409381][ T6396] __dump_stack+0x30/0x40 [ 225.410091][ T6396] dump_stack_lvl+0xf4/0x15c [ 225.410825][ T6396] dump_stack+0x1c/0x5c [ 225.411467][ T6396] sysfs_create_dir_ns+0x244/0x264 [ 225.412243][ T6396] kobject_add_internal+0x5ac/0xc3c [ 225.413014][ T6396] kobject_init_and_add+0x124/0x190 [ 225.413802][ T6396] gfs2_sys_fs_add+0x200/0x41c [ 225.414626][ T6396] gfs2_fill_super+0xddc/0x1a18 [ 225.415393][ T6396] get_tree_bdev+0x358/0x544 [ 225.416052][ T6396] gfs2_get_tree+0x54/0x1b4 [ 225.416735][ T6396] vfs_get_tree+0x90/0x274 [ 225.417464][ T6396] do_new_mount+0x228/0x810 [ 225.418177][ T6396] path_mount+0x5bc/0x1008 [ 225.418872][ T6396] __arm64_sys_mount+0x514/0x5f0 [ 225.419704][ T6396] invoke_syscall+0x98/0x2b0 [ 225.420398][ T6396] el0_svc_common+0x138/0x258 [ 225.421141][ T6396] do_el0_svc+0x58/0x13c [ 225.421808][ T6396] el0_svc+0x78/0x1d0 [ 225.422416][ T6396] el0t_64_sync_handler+0xcc/0xe4 [ 225.423256][ T6396] el0t_64_sync+0x1a0/0x1a4 [ 225.424126][ T6396] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.426190][ T6396] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.538267][ T5112] Bluetooth: hci2: command 0x040f tx timeout [ 225.623723][ T6398] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.624995][ T6398] CPU: 1 PID: 6398 Comm: syz.1.640 Not tainted syzkaller #0 [ 225.626140][ T6398] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.627774][ T6398] Call trace: [ 225.628327][ T6398] dump_backtrace+0x0/0x458 [ 225.629059][ T6398] show_stack+0x2c/0x3c [ 225.629697][ T6398] __dump_stack+0x30/0x40 [ 225.630377][ T6398] dump_stack_lvl+0xf4/0x15c [ 225.631023][ T6398] dump_stack+0x1c/0x5c [ 225.631688][ T6398] sysfs_create_dir_ns+0x244/0x264 [ 225.632581][ T6398] kobject_add_internal+0x5ac/0xc3c [ 225.633462][ T6398] kobject_init_and_add+0x124/0x190 [ 225.634334][ T6398] gfs2_sys_fs_add+0x200/0x41c [ 225.635147][ T6398] gfs2_fill_super+0xddc/0x1a18 [ 225.636063][ T6398] get_tree_bdev+0x358/0x544 [ 225.636754][ T6398] gfs2_get_tree+0x54/0x1b4 [ 225.637510][ T6398] vfs_get_tree+0x90/0x274 [ 225.638248][ T6398] do_new_mount+0x228/0x810 [ 225.638922][ T6398] path_mount+0x5bc/0x1008 [ 225.639563][ T6398] __arm64_sys_mount+0x514/0x5f0 [ 225.640302][ T6398] invoke_syscall+0x98/0x2b0 [ 225.641006][ T6398] el0_svc_common+0x138/0x258 [ 225.641799][ T6398] do_el0_svc+0x58/0x13c [ 225.642492][ T6398] el0_svc+0x78/0x1d0 [ 225.643185][ T6398] el0t_64_sync_handler+0xcc/0xe4 [ 225.644056][ T6398] el0t_64_sync+0x1a0/0x1a4 [ 225.645590][ T6398] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.647662][ T6398] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.824259][ T6400] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.825544][ T6400] CPU: 1 PID: 6400 Comm: syz.1.641 Not tainted syzkaller #0 [ 225.826725][ T6400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.828485][ T6400] Call trace: [ 225.829021][ T6400] dump_backtrace+0x0/0x458 [ 225.829755][ T6400] show_stack+0x2c/0x3c [ 225.830535][ T6400] __dump_stack+0x30/0x40 [ 225.831218][ T6400] dump_stack_lvl+0xf4/0x15c [ 225.831919][ T6400] dump_stack+0x1c/0x5c [ 225.832624][ T6400] sysfs_create_dir_ns+0x244/0x264 [ 225.833484][ T6400] kobject_add_internal+0x5ac/0xc3c [ 225.834308][ T6400] kobject_init_and_add+0x124/0x190 [ 225.835146][ T6400] gfs2_sys_fs_add+0x200/0x41c [ 225.835913][ T6400] gfs2_fill_super+0xddc/0x1a18 [ 225.836696][ T6400] get_tree_bdev+0x358/0x544 [ 225.837476][ T6400] gfs2_get_tree+0x54/0x1b4 [ 225.838190][ T6400] vfs_get_tree+0x90/0x274 [ 225.838928][ T6400] do_new_mount+0x228/0x810 [ 225.839615][ T6400] path_mount+0x5bc/0x1008 [ 225.840368][ T6400] __arm64_sys_mount+0x514/0x5f0 [ 225.841165][ T6400] invoke_syscall+0x98/0x2b0 [ 225.841936][ T6400] el0_svc_common+0x138/0x258 [ 225.842730][ T6400] do_el0_svc+0x58/0x13c [ 225.843520][ T6400] el0_svc+0x78/0x1d0 [ 225.844214][ T6400] el0t_64_sync_handler+0xcc/0xe4 [ 225.845042][ T6400] el0t_64_sync+0x1a0/0x1a4 [ 225.846297][ T6400] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.848832][ T6400] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.991693][ T6402] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.992935][ T6402] CPU: 0 PID: 6402 Comm: syz.1.642 Not tainted syzkaller #0 [ 225.994079][ T6402] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.995593][ T6402] Call trace: [ 225.996078][ T6402] dump_backtrace+0x0/0x458 [ 225.996842][ T6402] show_stack+0x2c/0x3c [ 225.997523][ T6402] __dump_stack+0x30/0x40 [ 225.998238][ T6402] dump_stack_lvl+0xf4/0x15c [ 225.998937][ T6402] dump_stack+0x1c/0x5c [ 225.999565][ T6402] sysfs_create_dir_ns+0x244/0x264 [ 226.000437][ T6402] kobject_add_internal+0x5ac/0xc3c [ 226.001308][ T6402] kobject_init_and_add+0x124/0x190 [ 226.002153][ T6402] gfs2_sys_fs_add+0x200/0x41c [ 226.002905][ T6402] gfs2_fill_super+0xddc/0x1a18 [ 226.003642][ T6402] get_tree_bdev+0x358/0x544 [ 226.004360][ T6402] gfs2_get_tree+0x54/0x1b4 [ 226.005030][ T6402] vfs_get_tree+0x90/0x274 [ 226.005745][ T6402] do_new_mount+0x228/0x810 [ 226.006424][ T6402] path_mount+0x5bc/0x1008 [ 226.007072][ T6402] __arm64_sys_mount+0x514/0x5f0 [ 226.007788][ T6402] invoke_syscall+0x98/0x2b0 [ 226.008544][ T6402] el0_svc_common+0x138/0x258 [ 226.009307][ T6402] do_el0_svc+0x58/0x13c [ 226.010052][ T6402] el0_svc+0x78/0x1d0 [ 226.010702][ T6402] el0t_64_sync_handler+0xcc/0xe4 [ 226.011541][ T6402] el0t_64_sync+0x1a0/0x1a4 [ 226.014090][ T6402] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.016582][ T6402] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.240189][ T6404] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.241530][ T6404] CPU: 1 PID: 6404 Comm: syz.1.643 Not tainted syzkaller #0 [ 226.242726][ T6404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.244290][ T6404] Call trace: [ 226.244785][ T6404] dump_backtrace+0x0/0x458 [ 226.245511][ T6404] show_stack+0x2c/0x3c [ 226.246187][ T6404] __dump_stack+0x30/0x40 [ 226.246884][ T6404] dump_stack_lvl+0xf4/0x15c [ 226.247595][ T6404] dump_stack+0x1c/0x5c [ 226.248250][ T6404] sysfs_create_dir_ns+0x244/0x264 [ 226.249083][ T6404] kobject_add_internal+0x5ac/0xc3c [ 226.249875][ T6404] kobject_init_and_add+0x124/0x190 [ 226.250686][ T6404] gfs2_sys_fs_add+0x200/0x41c [ 226.251459][ T6404] gfs2_fill_super+0xddc/0x1a18 [ 226.252167][ T6404] get_tree_bdev+0x358/0x544 [ 226.252888][ T6404] gfs2_get_tree+0x54/0x1b4 [ 226.253559][ T6404] vfs_get_tree+0x90/0x274 [ 226.254238][ T6404] do_new_mount+0x228/0x810 [ 226.254878][ T6404] path_mount+0x5bc/0x1008 [ 226.255549][ T6404] __arm64_sys_mount+0x514/0x5f0 [ 226.256344][ T6404] invoke_syscall+0x98/0x2b0 [ 226.257151][ T6404] el0_svc_common+0x138/0x258 [ 226.258006][ T6404] do_el0_svc+0x58/0x13c [ 226.258727][ T6404] el0_svc+0x78/0x1d0 [ 226.259432][ T6404] el0t_64_sync_handler+0xcc/0xe4 [ 226.260269][ T6404] el0t_64_sync+0x1a0/0x1a4 [ 226.262835][ T6404] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.264943][ T6404] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.419672][ T6406] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.420921][ T6406] CPU: 0 PID: 6406 Comm: syz.1.644 Not tainted syzkaller #0 [ 226.422022][ T6406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.423602][ T6406] Call trace: [ 226.424117][ T6406] dump_backtrace+0x0/0x458 [ 226.424880][ T6406] show_stack+0x2c/0x3c [ 226.425598][ T6406] __dump_stack+0x30/0x40 [ 226.426275][ T6406] dump_stack_lvl+0xf4/0x15c [ 226.426996][ T6406] dump_stack+0x1c/0x5c [ 226.427680][ T6406] sysfs_create_dir_ns+0x244/0x264 [ 226.428540][ T6406] kobject_add_internal+0x5ac/0xc3c [ 226.429414][ T6406] kobject_init_and_add+0x124/0x190 [ 226.430285][ T6406] gfs2_sys_fs_add+0x200/0x41c [ 226.431102][ T6406] gfs2_fill_super+0xddc/0x1a18 [ 226.431852][ T6406] get_tree_bdev+0x358/0x544 [ 226.432525][ T6406] gfs2_get_tree+0x54/0x1b4 [ 226.433140][ T6406] vfs_get_tree+0x90/0x274 [ 226.433806][ T6406] do_new_mount+0x228/0x810 [ 226.434558][ T6406] path_mount+0x5bc/0x1008 [ 226.435293][ T6406] __arm64_sys_mount+0x514/0x5f0 [ 226.436153][ T6406] invoke_syscall+0x98/0x2b0 [ 226.436996][ T6406] el0_svc_common+0x138/0x258 [ 226.437703][ T6406] do_el0_svc+0x58/0x13c [ 226.438384][ T6406] el0_svc+0x78/0x1d0 [ 226.439046][ T6406] el0t_64_sync_handler+0xcc/0xe4 [ 226.439831][ T6406] el0t_64_sync+0x1a0/0x1a4 [ 226.441140][ T6406] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.443100][ T6406] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.733814][ T6408] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.734969][ T6408] CPU: 0 PID: 6408 Comm: syz.1.645 Not tainted syzkaller #0 [ 226.736164][ T6408] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.737695][ T6408] Call trace: [ 226.738253][ T6408] dump_backtrace+0x0/0x458 [ 226.738998][ T6408] show_stack+0x2c/0x3c [ 226.739633][ T6408] __dump_stack+0x30/0x40 [ 226.740380][ T6408] dump_stack_lvl+0xf4/0x15c [ 226.741092][ T6408] dump_stack+0x1c/0x5c [ 226.741762][ T6408] sysfs_create_dir_ns+0x244/0x264 [ 226.742569][ T6408] kobject_add_internal+0x5ac/0xc3c [ 226.743439][ T6408] kobject_init_and_add+0x124/0x190 [ 226.744248][ T6408] gfs2_sys_fs_add+0x200/0x41c [ 226.745037][ T6408] gfs2_fill_super+0xddc/0x1a18 [ 226.745797][ T6408] get_tree_bdev+0x358/0x544 [ 226.746527][ T6408] gfs2_get_tree+0x54/0x1b4 [ 226.747283][ T6408] vfs_get_tree+0x90/0x274 [ 226.748029][ T6408] do_new_mount+0x228/0x810 [ 226.748823][ T6408] path_mount+0x5bc/0x1008 [ 226.749576][ T6408] __arm64_sys_mount+0x514/0x5f0 [ 226.750399][ T6408] invoke_syscall+0x98/0x2b0 [ 226.751179][ T6408] el0_svc_common+0x138/0x258 [ 226.751943][ T6408] do_el0_svc+0x58/0x13c [ 226.752665][ T6408] el0_svc+0x78/0x1d0 [ 226.753351][ T6408] el0t_64_sync_handler+0xcc/0xe4 [ 226.754146][ T6408] el0t_64_sync+0x1a0/0x1a4 [ 226.755056][ T6408] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.757183][ T6408] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.900045][ T6410] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.901294][ T6410] CPU: 0 PID: 6410 Comm: syz.1.646 Not tainted syzkaller #0 [ 226.902398][ T6410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.903995][ T6410] Call trace: [ 226.904498][ T6410] dump_backtrace+0x0/0x458 [ 226.905224][ T6410] show_stack+0x2c/0x3c [ 226.905961][ T6410] __dump_stack+0x30/0x40 [ 226.906675][ T6410] dump_stack_lvl+0xf4/0x15c [ 226.907416][ T6410] dump_stack+0x1c/0x5c [ 226.908087][ T6410] sysfs_create_dir_ns+0x244/0x264 [ 226.908876][ T6410] kobject_add_internal+0x5ac/0xc3c [ 226.909670][ T6410] kobject_init_and_add+0x124/0x190 [ 226.910459][ T6410] gfs2_sys_fs_add+0x200/0x41c [ 226.911234][ T6410] gfs2_fill_super+0xddc/0x1a18 [ 226.911979][ T6410] get_tree_bdev+0x358/0x544 [ 226.912628][ T6410] gfs2_get_tree+0x54/0x1b4 [ 226.913294][ T6410] vfs_get_tree+0x90/0x274 [ 226.914021][ T6410] do_new_mount+0x228/0x810 [ 226.914757][ T6410] path_mount+0x5bc/0x1008 [ 226.915460][ T6410] __arm64_sys_mount+0x514/0x5f0 [ 226.916215][ T6410] invoke_syscall+0x98/0x2b0 [ 226.916951][ T6410] el0_svc_common+0x138/0x258 [ 226.917697][ T6410] do_el0_svc+0x58/0x13c [ 226.918337][ T6410] el0_svc+0x78/0x1d0 [ 226.919028][ T6410] el0t_64_sync_handler+0xcc/0xe4 [ 226.919893][ T6410] el0t_64_sync+0x1a0/0x1a4 [ 226.920904][ T6410] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.922978][ T6410] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.140353][ T6412] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.141840][ T6412] CPU: 1 PID: 6412 Comm: syz.1.647 Not tainted syzkaller #0 [ 227.142993][ T6412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.144722][ T6412] Call trace: [ 227.145238][ T6412] dump_backtrace+0x0/0x458 [ 227.145935][ T6412] show_stack+0x2c/0x3c [ 227.146600][ T6412] __dump_stack+0x30/0x40 [ 227.147271][ T6412] dump_stack_lvl+0xf4/0x15c [ 227.148008][ T6412] dump_stack+0x1c/0x5c [ 227.148714][ T6412] sysfs_create_dir_ns+0x244/0x264 [ 227.149554][ T6412] kobject_add_internal+0x5ac/0xc3c [ 227.150404][ T6412] kobject_init_and_add+0x124/0x190 [ 227.151248][ T6412] gfs2_sys_fs_add+0x200/0x41c [ 227.151999][ T6412] gfs2_fill_super+0xddc/0x1a18 [ 227.152721][ T6412] get_tree_bdev+0x358/0x544 [ 227.153444][ T6412] gfs2_get_tree+0x54/0x1b4 [ 227.154230][ T6412] vfs_get_tree+0x90/0x274 [ 227.154983][ T6412] do_new_mount+0x228/0x810 [ 227.155711][ T6412] path_mount+0x5bc/0x1008 [ 227.156409][ T6412] __arm64_sys_mount+0x514/0x5f0 [ 227.157249][ T6412] invoke_syscall+0x98/0x2b0 [ 227.157973][ T6412] el0_svc_common+0x138/0x258 [ 227.158716][ T6412] do_el0_svc+0x58/0x13c [ 227.159364][ T6412] el0_svc+0x78/0x1d0 [ 227.159963][ T6412] el0t_64_sync_handler+0xcc/0xe4 [ 227.160765][ T6412] el0t_64_sync+0x1a0/0x1a4 [ 227.163044][ T6412] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.165152][ T6412] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.343181][ T6414] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.344407][ T6414] CPU: 1 PID: 6414 Comm: syz.1.648 Not tainted syzkaller #0 [ 227.345503][ T6414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.347004][ T6414] Call trace: [ 227.347532][ T6414] dump_backtrace+0x0/0x458 [ 227.348217][ T6414] show_stack+0x2c/0x3c [ 227.348826][ T6414] __dump_stack+0x30/0x40 [ 227.349460][ T6414] dump_stack_lvl+0xf4/0x15c [ 227.350148][ T6414] dump_stack+0x1c/0x5c [ 227.350851][ T6414] sysfs_create_dir_ns+0x244/0x264 [ 227.351655][ T6414] kobject_add_internal+0x5ac/0xc3c [ 227.352481][ T6414] kobject_init_and_add+0x124/0x190 [ 227.353332][ T6414] gfs2_sys_fs_add+0x200/0x41c [ 227.354055][ T6414] gfs2_fill_super+0xddc/0x1a18 [ 227.354806][ T6414] get_tree_bdev+0x358/0x544 [ 227.355513][ T6414] gfs2_get_tree+0x54/0x1b4 [ 227.356228][ T6414] vfs_get_tree+0x90/0x274 [ 227.356998][ T6414] do_new_mount+0x228/0x810 [ 227.357784][ T6414] path_mount+0x5bc/0x1008 [ 227.358535][ T6414] __arm64_sys_mount+0x514/0x5f0 [ 227.359386][ T6414] invoke_syscall+0x98/0x2b0 [ 227.360164][ T6414] el0_svc_common+0x138/0x258 [ 227.360888][ T6414] do_el0_svc+0x58/0x13c [ 227.361517][ T6414] el0_svc+0x78/0x1d0 [ 227.362101][ T6414] el0t_64_sync_handler+0xcc/0xe4 [ 227.362876][ T6414] el0t_64_sync+0x1a0/0x1a4 [ 227.365158][ T6414] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.367233][ T6414] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.512596][ T6416] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.513870][ T6416] CPU: 0 PID: 6416 Comm: syz.1.649 Not tainted syzkaller #0 [ 227.514979][ T6416] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.516637][ T6416] Call trace: [ 227.517175][ T6416] dump_backtrace+0x0/0x458 [ 227.517833][ T6416] show_stack+0x2c/0x3c [ 227.518433][ T6416] __dump_stack+0x30/0x40 [ 227.519072][ T6416] dump_stack_lvl+0xf4/0x15c [ 227.519806][ T6416] dump_stack+0x1c/0x5c [ 227.520528][ T6416] sysfs_create_dir_ns+0x244/0x264 [ 227.521369][ T6416] kobject_add_internal+0x5ac/0xc3c [ 227.522185][ T6416] kobject_init_and_add+0x124/0x190 [ 227.523117][ T6416] gfs2_sys_fs_add+0x200/0x41c [ 227.523938][ T6416] gfs2_fill_super+0xddc/0x1a18 [ 227.525362][ T6416] get_tree_bdev+0x358/0x544 [ 227.526122][ T6416] gfs2_get_tree+0x54/0x1b4 [ 227.526872][ T6416] vfs_get_tree+0x90/0x274 [ 227.527576][ T6416] do_new_mount+0x228/0x810 [ 227.528273][ T6416] path_mount+0x5bc/0x1008 [ 227.528987][ T6416] __arm64_sys_mount+0x514/0x5f0 [ 227.529750][ T6416] invoke_syscall+0x98/0x2b0 [ 227.530420][ T6416] el0_svc_common+0x138/0x258 [ 227.531136][ T6416] do_el0_svc+0x58/0x13c [ 227.531781][ T6416] el0_svc+0x78/0x1d0 [ 227.532399][ T6416] el0t_64_sync_handler+0xcc/0xe4 [ 227.533156][ T6416] el0t_64_sync+0x1a0/0x1a4 [ 227.534201][ T6416] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.536136][ T6416] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.608229][ T13] Bluetooth: hci2: command 0x0419 tx timeout [ 227.677186][ T6418] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.678504][ T6418] CPU: 1 PID: 6418 Comm: syz.1.650 Not tainted syzkaller #0 [ 227.679640][ T6418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.681168][ T6418] Call trace: [ 227.681657][ T6418] dump_backtrace+0x0/0x458 [ 227.682411][ T6418] show_stack+0x2c/0x3c [ 227.683048][ T6418] __dump_stack+0x30/0x40 [ 227.683784][ T6418] dump_stack_lvl+0xf4/0x15c [ 227.684456][ T6418] dump_stack+0x1c/0x5c [ 227.685096][ T6418] sysfs_create_dir_ns+0x244/0x264 [ 227.685860][ T6418] kobject_add_internal+0x5ac/0xc3c [ 227.686679][ T6418] kobject_init_and_add+0x124/0x190 [ 227.687394][ T6418] gfs2_sys_fs_add+0x200/0x41c [ 227.688110][ T6418] gfs2_fill_super+0xddc/0x1a18 [ 227.688837][ T6418] get_tree_bdev+0x358/0x544 [ 227.689577][ T6418] gfs2_get_tree+0x54/0x1b4 [ 227.690348][ T6418] vfs_get_tree+0x90/0x274 [ 227.691088][ T6418] do_new_mount+0x228/0x810 [ 227.691856][ T6418] path_mount+0x5bc/0x1008 [ 227.692603][ T6418] __arm64_sys_mount+0x514/0x5f0 [ 227.693405][ T6418] invoke_syscall+0x98/0x2b0 [ 227.694129][ T6418] el0_svc_common+0x138/0x258 [ 227.694868][ T6418] do_el0_svc+0x58/0x13c [ 227.695541][ T6418] el0_svc+0x78/0x1d0 [ 227.696200][ T6418] el0t_64_sync_handler+0xcc/0xe4 [ 227.697035][ T6418] el0t_64_sync+0x1a0/0x1a4 [ 227.699295][ T6418] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.701233][ T6418] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.837524][ T6420] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.838905][ T6420] CPU: 0 PID: 6420 Comm: syz.1.651 Not tainted syzkaller #0 [ 227.840056][ T6420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.841636][ T6420] Call trace: [ 227.842134][ T6420] dump_backtrace+0x0/0x458 [ 227.842823][ T6420] show_stack+0x2c/0x3c [ 227.843428][ T6420] __dump_stack+0x30/0x40 [ 227.844173][ T6420] dump_stack_lvl+0xf4/0x15c [ 227.844907][ T6420] dump_stack+0x1c/0x5c [ 227.845608][ T6420] sysfs_create_dir_ns+0x244/0x264 [ 227.846452][ T6420] kobject_add_internal+0x5ac/0xc3c [ 227.847295][ T6420] kobject_init_and_add+0x124/0x190 [ 227.848168][ T6420] gfs2_sys_fs_add+0x200/0x41c [ 227.848960][ T6420] gfs2_fill_super+0xddc/0x1a18 [ 227.849689][ T6420] get_tree_bdev+0x358/0x544 [ 227.850479][ T6420] gfs2_get_tree+0x54/0x1b4 [ 227.851323][ T6420] vfs_get_tree+0x90/0x274 [ 227.852056][ T6420] do_new_mount+0x228/0x810 [ 227.852773][ T6420] path_mount+0x5bc/0x1008 [ 227.853558][ T6420] __arm64_sys_mount+0x514/0x5f0 [ 227.854313][ T6420] invoke_syscall+0x98/0x2b0 [ 227.855060][ T6420] el0_svc_common+0x138/0x258 [ 227.855854][ T6420] do_el0_svc+0x58/0x13c [ 227.856559][ T6420] el0_svc+0x78/0x1d0 [ 227.857205][ T6420] el0t_64_sync_handler+0xcc/0xe4 [ 227.857995][ T6420] el0t_64_sync+0x1a0/0x1a4 [ 227.859071][ T6420] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.861057][ T6420] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:47 executed programs: 638 [ 227.988076][ T6422] set_capacity_and_notify: 15 callbacks suppressed [ 227.988087][ T6422] loop1: detected capacity change from 0 to 32768 [ 228.039619][ T6422] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.040787][ T6422] CPU: 1 PID: 6422 Comm: syz.1.652 Not tainted syzkaller #0 [ 228.042051][ T6422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.043798][ T6422] Call trace: [ 228.044338][ T6422] dump_backtrace+0x0/0x458 [ 228.045086][ T6422] show_stack+0x2c/0x3c [ 228.045815][ T6422] __dump_stack+0x30/0x40 [ 228.046572][ T6422] dump_stack_lvl+0xf4/0x15c [ 228.047354][ T6422] dump_stack+0x1c/0x5c [ 228.048035][ T6422] sysfs_create_dir_ns+0x244/0x264 [ 228.048951][ T6422] kobject_add_internal+0x5ac/0xc3c [ 228.049813][ T6422] kobject_init_and_add+0x124/0x190 [ 228.050662][ T6422] gfs2_sys_fs_add+0x200/0x41c [ 228.051475][ T6422] gfs2_fill_super+0xddc/0x1a18 [ 228.052321][ T6422] get_tree_bdev+0x358/0x544 [ 228.053083][ T6422] gfs2_get_tree+0x54/0x1b4 [ 228.053854][ T6422] vfs_get_tree+0x90/0x274 [ 228.054539][ T6422] do_new_mount+0x228/0x810 [ 228.055257][ T6422] path_mount+0x5bc/0x1008 [ 228.055964][ T6422] __arm64_sys_mount+0x514/0x5f0 [ 228.056791][ T6422] invoke_syscall+0x98/0x2b0 [ 228.057541][ T6422] el0_svc_common+0x138/0x258 [ 228.058349][ T6422] do_el0_svc+0x58/0x13c [ 228.058970][ T6422] el0_svc+0x78/0x1d0 [ 228.059643][ T6422] el0t_64_sync_handler+0xcc/0xe4 [ 228.060461][ T6422] el0t_64_sync+0x1a0/0x1a4 [ 228.062095][ T6422] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.064339][ T6422] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.197341][ T6424] loop1: detected capacity change from 0 to 32768 [ 228.204904][ T6424] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.206058][ T6424] CPU: 0 PID: 6424 Comm: syz.1.653 Not tainted syzkaller #0 [ 228.207272][ T6424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.208997][ T6424] Call trace: [ 228.209537][ T6424] dump_backtrace+0x0/0x458 [ 228.210263][ T6424] show_stack+0x2c/0x3c [ 228.210955][ T6424] __dump_stack+0x30/0x40 [ 228.211703][ T6424] dump_stack_lvl+0xf4/0x15c [ 228.212444][ T6424] dump_stack+0x1c/0x5c [ 228.213113][ T6424] sysfs_create_dir_ns+0x244/0x264 [ 228.213982][ T6424] kobject_add_internal+0x5ac/0xc3c [ 228.214835][ T6424] kobject_init_and_add+0x124/0x190 [ 228.215651][ T6424] gfs2_sys_fs_add+0x200/0x41c [ 228.216439][ T6424] gfs2_fill_super+0xddc/0x1a18 [ 228.217164][ T6424] get_tree_bdev+0x358/0x544 [ 228.217968][ T6424] gfs2_get_tree+0x54/0x1b4 [ 228.218752][ T6424] vfs_get_tree+0x90/0x274 [ 228.219453][ T6424] do_new_mount+0x228/0x810 [ 228.220153][ T6424] path_mount+0x5bc/0x1008 [ 228.220800][ T6424] __arm64_sys_mount+0x514/0x5f0 [ 228.221594][ T6424] invoke_syscall+0x98/0x2b0 [ 228.222330][ T6424] el0_svc_common+0x138/0x258 [ 228.223017][ T6424] do_el0_svc+0x58/0x13c [ 228.223703][ T6424] el0_svc+0x78/0x1d0 [ 228.224331][ T6424] el0t_64_sync_handler+0xcc/0xe4 [ 228.225153][ T6424] el0t_64_sync+0x1a0/0x1a4 [ 228.227268][ T6424] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.229453][ T6424] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.362426][ T6426] loop1: detected capacity change from 0 to 32768 [ 228.370788][ T6426] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.371963][ T6426] CPU: 1 PID: 6426 Comm: syz.1.654 Not tainted syzkaller #0 [ 228.373128][ T6426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.374569][ T6426] Call trace: [ 228.375153][ T6426] dump_backtrace+0x0/0x458 [ 228.375934][ T6426] show_stack+0x2c/0x3c [ 228.376619][ T6426] __dump_stack+0x30/0x40 [ 228.377293][ T6426] dump_stack_lvl+0xf4/0x15c [ 228.378048][ T6426] dump_stack+0x1c/0x5c [ 228.378699][ T6426] sysfs_create_dir_ns+0x244/0x264 [ 228.379568][ T6426] kobject_add_internal+0x5ac/0xc3c [ 228.380391][ T6426] kobject_init_and_add+0x124/0x190 [ 228.381254][ T6426] gfs2_sys_fs_add+0x200/0x41c [ 228.382114][ T6426] gfs2_fill_super+0xddc/0x1a18 [ 228.382916][ T6426] get_tree_bdev+0x358/0x544 [ 228.383640][ T6426] gfs2_get_tree+0x54/0x1b4 [ 228.384321][ T6426] vfs_get_tree+0x90/0x274 [ 228.385049][ T6426] do_new_mount+0x228/0x810 [ 228.385761][ T6426] path_mount+0x5bc/0x1008 [ 228.386504][ T6426] __arm64_sys_mount+0x514/0x5f0 [ 228.387336][ T6426] invoke_syscall+0x98/0x2b0 [ 228.388025][ T6426] el0_svc_common+0x138/0x258 [ 228.388757][ T6426] do_el0_svc+0x58/0x13c [ 228.389443][ T6426] el0_svc+0x78/0x1d0 [ 228.390092][ T6426] el0t_64_sync_handler+0xcc/0xe4 [ 228.390947][ T6426] el0t_64_sync+0x1a0/0x1a4 [ 228.391844][ T6426] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.393949][ T6426] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.523690][ T6428] loop1: detected capacity change from 0 to 32768 [ 228.563060][ T6428] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.564189][ T6428] CPU: 1 PID: 6428 Comm: syz.1.655 Not tainted syzkaller #0 [ 228.565317][ T6428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.566844][ T6428] Call trace: [ 228.567333][ T6428] dump_backtrace+0x0/0x458 [ 228.568050][ T6428] show_stack+0x2c/0x3c [ 228.568708][ T6428] __dump_stack+0x30/0x40 [ 228.569370][ T6428] dump_stack_lvl+0xf4/0x15c [ 228.570054][ T6428] dump_stack+0x1c/0x5c [ 228.570751][ T6428] sysfs_create_dir_ns+0x244/0x264 [ 228.571576][ T6428] kobject_add_internal+0x5ac/0xc3c [ 228.572359][ T6428] kobject_init_and_add+0x124/0x190 [ 228.573232][ T6428] gfs2_sys_fs_add+0x200/0x41c [ 228.574007][ T6428] gfs2_fill_super+0xddc/0x1a18 [ 228.574827][ T6428] get_tree_bdev+0x358/0x544 [ 228.575524][ T6428] gfs2_get_tree+0x54/0x1b4 [ 228.576234][ T6428] vfs_get_tree+0x90/0x274 [ 228.577031][ T6428] do_new_mount+0x228/0x810 [ 228.577770][ T6428] path_mount+0x5bc/0x1008 [ 228.578508][ T6428] __arm64_sys_mount+0x514/0x5f0 [ 228.579331][ T6428] invoke_syscall+0x98/0x2b0 [ 228.580046][ T6428] el0_svc_common+0x138/0x258 [ 228.580799][ T6428] do_el0_svc+0x58/0x13c [ 228.581515][ T6428] el0_svc+0x78/0x1d0 [ 228.582177][ T6428] el0t_64_sync_handler+0xcc/0xe4 [ 228.582995][ T6428] el0t_64_sync+0x1a0/0x1a4 [ 228.584521][ T6428] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.586607][ T6428] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.773564][ T6430] loop1: detected capacity change from 0 to 32768 [ 228.829701][ T6430] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.830835][ T6430] CPU: 1 PID: 6430 Comm: syz.1.656 Not tainted syzkaller #0 [ 228.832012][ T6430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.833688][ T6430] Call trace: [ 228.834229][ T6430] dump_backtrace+0x0/0x458 [ 228.834962][ T6430] show_stack+0x2c/0x3c [ 228.835634][ T6430] __dump_stack+0x30/0x40 [ 228.836322][ T6430] dump_stack_lvl+0xf4/0x15c [ 228.837134][ T6430] dump_stack+0x1c/0x5c [ 228.837825][ T6430] sysfs_create_dir_ns+0x244/0x264 [ 228.838659][ T6430] kobject_add_internal+0x5ac/0xc3c [ 228.839501][ T6430] kobject_init_and_add+0x124/0x190 [ 228.840370][ T6430] gfs2_sys_fs_add+0x200/0x41c [ 228.841115][ T6430] gfs2_fill_super+0xddc/0x1a18 [ 228.841963][ T6430] get_tree_bdev+0x358/0x544 [ 228.842702][ T6430] gfs2_get_tree+0x54/0x1b4 [ 228.843424][ T6430] vfs_get_tree+0x90/0x274 [ 228.844107][ T6430] do_new_mount+0x228/0x810 [ 228.844794][ T6430] path_mount+0x5bc/0x1008 [ 228.845511][ T6430] __arm64_sys_mount+0x514/0x5f0 [ 228.846274][ T6430] invoke_syscall+0x98/0x2b0 [ 228.846994][ T6430] el0_svc_common+0x138/0x258 [ 228.847698][ T6430] do_el0_svc+0x58/0x13c [ 228.848330][ T6430] el0_svc+0x78/0x1d0 [ 228.848924][ T6430] el0t_64_sync_handler+0xcc/0xe4 [ 228.849631][ T6430] el0t_64_sync+0x1a0/0x1a4 [ 228.852254][ T6430] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.854277][ T6430] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.986986][ T6432] loop1: detected capacity change from 0 to 32768 [ 228.995820][ T6432] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.996950][ T6432] CPU: 0 PID: 6432 Comm: syz.1.657 Not tainted syzkaller #0 [ 228.998128][ T6432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.999733][ T6432] Call trace: [ 229.000233][ T6432] dump_backtrace+0x0/0x458 [ 229.000960][ T6432] show_stack+0x2c/0x3c [ 229.001630][ T6432] __dump_stack+0x30/0x40 [ 229.002318][ T6432] dump_stack_lvl+0xf4/0x15c [ 229.003094][ T6432] dump_stack+0x1c/0x5c [ 229.003772][ T6432] sysfs_create_dir_ns+0x244/0x264 [ 229.004608][ T6432] kobject_add_internal+0x5ac/0xc3c [ 229.005531][ T6432] kobject_init_and_add+0x124/0x190 [ 229.006293][ T6432] gfs2_sys_fs_add+0x200/0x41c [ 229.007014][ T6432] gfs2_fill_super+0xddc/0x1a18 [ 229.007742][ T6432] get_tree_bdev+0x358/0x544 [ 229.008510][ T6432] gfs2_get_tree+0x54/0x1b4 [ 229.009277][ T6432] vfs_get_tree+0x90/0x274 [ 229.010016][ T6432] do_new_mount+0x228/0x810 [ 229.010813][ T6432] path_mount+0x5bc/0x1008 [ 229.011495][ T6432] __arm64_sys_mount+0x514/0x5f0 [ 229.012314][ T6432] invoke_syscall+0x98/0x2b0 [ 229.013088][ T6432] el0_svc_common+0x138/0x258 [ 229.013867][ T6432] do_el0_svc+0x58/0x13c [ 229.014429][ T6432] el0_svc+0x78/0x1d0 [ 229.015054][ T6432] el0t_64_sync_handler+0xcc/0xe4 [ 229.015748][ T6432] el0t_64_sync+0x1a0/0x1a4 [ 229.016782][ T6432] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.018934][ T6432] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.147598][ T6434] loop1: detected capacity change from 0 to 32768 [ 229.199680][ T6434] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.200940][ T6434] CPU: 1 PID: 6434 Comm: syz.1.658 Not tainted syzkaller #0 [ 229.202126][ T6434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.203782][ T6434] Call trace: [ 229.204271][ T6434] dump_backtrace+0x0/0x458 [ 229.204992][ T6434] show_stack+0x2c/0x3c [ 229.205644][ T6434] __dump_stack+0x30/0x40 [ 229.206344][ T6434] dump_stack_lvl+0xf4/0x15c [ 229.207075][ T6434] dump_stack+0x1c/0x5c [ 229.207783][ T6434] sysfs_create_dir_ns+0x244/0x264 [ 229.208634][ T6434] kobject_add_internal+0x5ac/0xc3c [ 229.209528][ T6434] kobject_init_and_add+0x124/0x190 [ 229.210354][ T6434] gfs2_sys_fs_add+0x200/0x41c [ 229.211139][ T6434] gfs2_fill_super+0xddc/0x1a18 [ 229.211880][ T6434] get_tree_bdev+0x358/0x544 [ 229.212695][ T6434] gfs2_get_tree+0x54/0x1b4 [ 229.213398][ T6434] vfs_get_tree+0x90/0x274 [ 229.214107][ T6434] do_new_mount+0x228/0x810 [ 229.214829][ T6434] path_mount+0x5bc/0x1008 [ 229.215530][ T6434] __arm64_sys_mount+0x514/0x5f0 [ 229.216229][ T6434] invoke_syscall+0x98/0x2b0 [ 229.216888][ T6434] el0_svc_common+0x138/0x258 [ 229.217503][ T6434] do_el0_svc+0x58/0x13c [ 229.218193][ T6434] el0_svc+0x78/0x1d0 [ 229.218832][ T6434] el0t_64_sync_handler+0xcc/0xe4 [ 229.219631][ T6434] el0t_64_sync+0x1a0/0x1a4 [ 229.221866][ T6434] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.224033][ T6434] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.361216][ T6436] loop1: detected capacity change from 0 to 32768 [ 229.403118][ T6436] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.404231][ T6436] CPU: 0 PID: 6436 Comm: syz.1.659 Not tainted syzkaller #0 [ 229.405282][ T6436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.406626][ T6436] Call trace: [ 229.407092][ T6436] dump_backtrace+0x0/0x458 [ 229.407777][ T6436] show_stack+0x2c/0x3c [ 229.408388][ T6436] __dump_stack+0x30/0x40 [ 229.409056][ T6436] dump_stack_lvl+0xf4/0x15c [ 229.409763][ T6436] dump_stack+0x1c/0x5c [ 229.410461][ T6436] sysfs_create_dir_ns+0x244/0x264 [ 229.411344][ T6436] kobject_add_internal+0x5ac/0xc3c [ 229.412184][ T6436] kobject_init_and_add+0x124/0x190 [ 229.413115][ T6436] gfs2_sys_fs_add+0x200/0x41c [ 229.413974][ T6436] gfs2_fill_super+0xddc/0x1a18 [ 229.414714][ T6436] get_tree_bdev+0x358/0x544 [ 229.415460][ T6436] gfs2_get_tree+0x54/0x1b4 [ 229.416190][ T6436] vfs_get_tree+0x90/0x274 [ 229.416892][ T6436] do_new_mount+0x228/0x810 [ 229.417634][ T6436] path_mount+0x5bc/0x1008 [ 229.418371][ T6436] __arm64_sys_mount+0x514/0x5f0 [ 229.419178][ T6436] invoke_syscall+0x98/0x2b0 [ 229.419951][ T6436] el0_svc_common+0x138/0x258 [ 229.420767][ T6436] do_el0_svc+0x58/0x13c [ 229.421448][ T6436] el0_svc+0x78/0x1d0 [ 229.422057][ T6436] el0t_64_sync_handler+0xcc/0xe4 [ 229.422823][ T6436] el0t_64_sync+0x1a0/0x1a4 [ 229.423713][ T6436] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.425812][ T6436] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.559131][ T6438] loop1: detected capacity change from 0 to 32768 [ 229.610319][ T6438] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.612473][ T6438] CPU: 0 PID: 6438 Comm: syz.1.660 Not tainted syzkaller #0 [ 229.613678][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.615335][ T6438] Call trace: [ 229.615833][ T6438] dump_backtrace+0x0/0x458 [ 229.616476][ T6438] show_stack+0x2c/0x3c [ 229.617117][ T6438] __dump_stack+0x30/0x40 [ 229.617834][ T6438] dump_stack_lvl+0xf4/0x15c [ 229.618547][ T6438] dump_stack+0x1c/0x5c [ 229.619290][ T6438] sysfs_create_dir_ns+0x244/0x264 [ 229.620080][ T6438] kobject_add_internal+0x5ac/0xc3c [ 229.620797][ T6438] kobject_init_and_add+0x124/0x190 [ 229.621609][ T6438] gfs2_sys_fs_add+0x200/0x41c [ 229.622289][ T6438] gfs2_fill_super+0xddc/0x1a18 [ 229.623025][ T6438] get_tree_bdev+0x358/0x544 [ 229.623768][ T6438] gfs2_get_tree+0x54/0x1b4 [ 229.624568][ T6438] vfs_get_tree+0x90/0x274 [ 229.625258][ T6438] do_new_mount+0x228/0x810 [ 229.625937][ T6438] path_mount+0x5bc/0x1008 [ 229.626564][ T6438] __arm64_sys_mount+0x514/0x5f0 [ 229.627282][ T6438] invoke_syscall+0x98/0x2b0 [ 229.627993][ T6438] el0_svc_common+0x138/0x258 [ 229.628648][ T6438] do_el0_svc+0x58/0x13c [ 229.629286][ T6438] el0_svc+0x78/0x1d0 [ 229.629895][ T6438] el0t_64_sync_handler+0xcc/0xe4 [ 229.630722][ T6438] el0t_64_sync+0x1a0/0x1a4 [ 229.632219][ T6438] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.633998][ T6438] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.766618][ T6440] loop1: detected capacity change from 0 to 32768 [ 229.775736][ T6440] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.776989][ T6440] CPU: 0 PID: 6440 Comm: syz.1.661 Not tainted syzkaller #0 [ 229.778144][ T6440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.779643][ T6440] Call trace: [ 229.780163][ T6440] dump_backtrace+0x0/0x458 [ 229.780840][ T6440] show_stack+0x2c/0x3c [ 229.781449][ T6440] __dump_stack+0x30/0x40 [ 229.782134][ T6440] dump_stack_lvl+0xf4/0x15c [ 229.782824][ T6440] dump_stack+0x1c/0x5c [ 229.783445][ T6440] sysfs_create_dir_ns+0x244/0x264 [ 229.784215][ T6440] kobject_add_internal+0x5ac/0xc3c [ 229.784984][ T6440] kobject_init_and_add+0x124/0x190 [ 229.785766][ T6440] gfs2_sys_fs_add+0x200/0x41c [ 229.786442][ T6440] gfs2_fill_super+0xddc/0x1a18 [ 229.787120][ T6440] get_tree_bdev+0x358/0x544 [ 229.787777][ T6440] gfs2_get_tree+0x54/0x1b4 [ 229.788467][ T6440] vfs_get_tree+0x90/0x274 [ 229.789233][ T6440] do_new_mount+0x228/0x810 [ 229.790001][ T6440] path_mount+0x5bc/0x1008 [ 229.790686][ T6440] __arm64_sys_mount+0x514/0x5f0 [ 229.791497][ T6440] invoke_syscall+0x98/0x2b0 [ 229.792210][ T6440] el0_svc_common+0x138/0x258 [ 229.792946][ T6440] do_el0_svc+0x58/0x13c [ 229.793613][ T6440] el0_svc+0x78/0x1d0 [ 229.794244][ T6440] el0t_64_sync_handler+0xcc/0xe4 [ 229.795071][ T6440] el0t_64_sync+0x1a0/0x1a4 [ 229.796132][ T6440] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.798333][ T6440] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.971102][ T6442] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.972529][ T6442] CPU: 1 PID: 6442 Comm: syz.1.662 Not tainted syzkaller #0 [ 229.973737][ T6442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.975295][ T6442] Call trace: [ 229.975810][ T6442] dump_backtrace+0x0/0x458 [ 229.976546][ T6442] show_stack+0x2c/0x3c [ 229.977240][ T6442] __dump_stack+0x30/0x40 [ 229.978021][ T6442] dump_stack_lvl+0xf4/0x15c [ 229.978783][ T6442] dump_stack+0x1c/0x5c [ 229.979550][ T6442] sysfs_create_dir_ns+0x244/0x264 [ 229.980408][ T6442] kobject_add_internal+0x5ac/0xc3c [ 229.981219][ T6442] kobject_init_and_add+0x124/0x190 [ 229.982047][ T6442] gfs2_sys_fs_add+0x200/0x41c [ 229.982835][ T6442] gfs2_fill_super+0xddc/0x1a18 [ 229.983692][ T6442] get_tree_bdev+0x358/0x544 [ 229.984506][ T6442] gfs2_get_tree+0x54/0x1b4 [ 229.985231][ T6442] vfs_get_tree+0x90/0x274 [ 229.985939][ T6442] do_new_mount+0x228/0x810 [ 229.986676][ T6442] path_mount+0x5bc/0x1008 [ 229.987372][ T6442] __arm64_sys_mount+0x514/0x5f0 [ 229.988148][ T6442] invoke_syscall+0x98/0x2b0 [ 229.988885][ T6442] el0_svc_common+0x138/0x258 [ 229.989653][ T6442] do_el0_svc+0x58/0x13c [ 229.990328][ T6442] el0_svc+0x78/0x1d0 [ 229.991021][ T6442] el0t_64_sync_handler+0xcc/0xe4 [ 229.991795][ T6442] el0t_64_sync+0x1a0/0x1a4 [ 229.993920][ T6442] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.996026][ T6442] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.144149][ T6444] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.145472][ T6444] CPU: 0 PID: 6444 Comm: syz.1.663 Not tainted syzkaller #0 [ 230.146606][ T6444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.148131][ T6444] Call trace: [ 230.148672][ T6444] dump_backtrace+0x0/0x458 [ 230.149387][ T6444] show_stack+0x2c/0x3c [ 230.150032][ T6444] __dump_stack+0x30/0x40 [ 230.150706][ T6444] dump_stack_lvl+0xf4/0x15c [ 230.151409][ T6444] dump_stack+0x1c/0x5c [ 230.152135][ T6444] sysfs_create_dir_ns+0x244/0x264 [ 230.153001][ T6444] kobject_add_internal+0x5ac/0xc3c [ 230.153827][ T6444] kobject_init_and_add+0x124/0x190 [ 230.154653][ T6444] gfs2_sys_fs_add+0x200/0x41c [ 230.155359][ T6444] gfs2_fill_super+0xddc/0x1a18 [ 230.156071][ T6444] get_tree_bdev+0x358/0x544 [ 230.156752][ T6444] gfs2_get_tree+0x54/0x1b4 [ 230.157466][ T6444] vfs_get_tree+0x90/0x274 [ 230.158151][ T6444] do_new_mount+0x228/0x810 [ 230.158838][ T6444] path_mount+0x5bc/0x1008 [ 230.159588][ T6444] __arm64_sys_mount+0x514/0x5f0 [ 230.160410][ T6444] invoke_syscall+0x98/0x2b0 [ 230.161137][ T6444] el0_svc_common+0x138/0x258 [ 230.161867][ T6444] do_el0_svc+0x58/0x13c [ 230.162553][ T6444] el0_svc+0x78/0x1d0 [ 230.163171][ T6444] el0t_64_sync_handler+0xcc/0xe4 [ 230.163966][ T6444] el0t_64_sync+0x1a0/0x1a4 [ 230.164861][ T6444] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.166953][ T6444] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.333368][ T6446] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.334586][ T6446] CPU: 0 PID: 6446 Comm: syz.1.664 Not tainted syzkaller #0 [ 230.335759][ T6446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.337342][ T6446] Call trace: [ 230.337823][ T6446] dump_backtrace+0x0/0x458 [ 230.338602][ T6446] show_stack+0x2c/0x3c [ 230.339257][ T6446] __dump_stack+0x30/0x40 [ 230.339943][ T6446] dump_stack_lvl+0xf4/0x15c [ 230.340652][ T6446] dump_stack+0x1c/0x5c [ 230.341284][ T6446] sysfs_create_dir_ns+0x244/0x264 [ 230.342073][ T6446] kobject_add_internal+0x5ac/0xc3c [ 230.342848][ T6446] kobject_init_and_add+0x124/0x190 [ 230.343634][ T6446] gfs2_sys_fs_add+0x200/0x41c [ 230.344353][ T6446] gfs2_fill_super+0xddc/0x1a18 [ 230.345120][ T6446] get_tree_bdev+0x358/0x544 [ 230.345850][ T6446] gfs2_get_tree+0x54/0x1b4 [ 230.346560][ T6446] vfs_get_tree+0x90/0x274 [ 230.347260][ T6446] do_new_mount+0x228/0x810 [ 230.347973][ T6446] path_mount+0x5bc/0x1008 [ 230.348677][ T6446] __arm64_sys_mount+0x514/0x5f0 [ 230.349485][ T6446] invoke_syscall+0x98/0x2b0 [ 230.350159][ T6446] el0_svc_common+0x138/0x258 [ 230.350856][ T6446] do_el0_svc+0x58/0x13c [ 230.351469][ T6446] el0_svc+0x78/0x1d0 [ 230.352020][ T6446] el0t_64_sync_handler+0xcc/0xe4 [ 230.352750][ T6446] el0t_64_sync+0x1a0/0x1a4 [ 230.354877][ T6446] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.356748][ T6446] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.538469][ T6448] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.539732][ T6448] CPU: 1 PID: 6448 Comm: syz.1.665 Not tainted syzkaller #0 [ 230.540871][ T6448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.542489][ T6448] Call trace: [ 230.542964][ T6448] dump_backtrace+0x0/0x458 [ 230.543638][ T6448] show_stack+0x2c/0x3c [ 230.544316][ T6448] __dump_stack+0x30/0x40 [ 230.545017][ T6448] dump_stack_lvl+0xf4/0x15c [ 230.545732][ T6448] dump_stack+0x1c/0x5c [ 230.546376][ T6448] sysfs_create_dir_ns+0x244/0x264 [ 230.547124][ T6448] kobject_add_internal+0x5ac/0xc3c [ 230.547961][ T6448] kobject_init_and_add+0x124/0x190 [ 230.548734][ T6448] gfs2_sys_fs_add+0x200/0x41c [ 230.549442][ T6448] gfs2_fill_super+0xddc/0x1a18 [ 230.550303][ T6448] get_tree_bdev+0x358/0x544 [ 230.551021][ T6448] gfs2_get_tree+0x54/0x1b4 [ 230.551706][ T6448] vfs_get_tree+0x90/0x274 [ 230.552391][ T6448] do_new_mount+0x228/0x810 [ 230.553183][ T6448] path_mount+0x5bc/0x1008 [ 230.553893][ T6448] __arm64_sys_mount+0x514/0x5f0 [ 230.554657][ T6448] invoke_syscall+0x98/0x2b0 [ 230.555348][ T6448] el0_svc_common+0x138/0x258 [ 230.556061][ T6448] do_el0_svc+0x58/0x13c [ 230.556709][ T6448] el0_svc+0x78/0x1d0 [ 230.557278][ T6448] el0t_64_sync_handler+0xcc/0xe4 [ 230.558137][ T6448] el0t_64_sync+0x1a0/0x1a4 [ 230.560215][ T6448] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.562086][ T6448] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.730150][ T6450] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.731479][ T6450] CPU: 1 PID: 6450 Comm: syz.1.666 Not tainted syzkaller #0 [ 230.732547][ T6450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.734240][ T6450] Call trace: [ 230.734822][ T6450] dump_backtrace+0x0/0x458 [ 230.735608][ T6450] show_stack+0x2c/0x3c [ 230.736261][ T6450] __dump_stack+0x30/0x40 [ 230.736955][ T6450] dump_stack_lvl+0xf4/0x15c [ 230.737707][ T6450] dump_stack+0x1c/0x5c [ 230.738410][ T6450] sysfs_create_dir_ns+0x244/0x264 [ 230.739234][ T6450] kobject_add_internal+0x5ac/0xc3c [ 230.740075][ T6450] kobject_init_and_add+0x124/0x190 [ 230.740914][ T6450] gfs2_sys_fs_add+0x200/0x41c [ 230.741628][ T6450] gfs2_fill_super+0xddc/0x1a18 [ 230.742388][ T6450] get_tree_bdev+0x358/0x544 [ 230.743073][ T6450] gfs2_get_tree+0x54/0x1b4 [ 230.743800][ T6450] vfs_get_tree+0x90/0x274 [ 230.744530][ T6450] do_new_mount+0x228/0x810 [ 230.745203][ T6450] path_mount+0x5bc/0x1008 [ 230.746045][ T6450] __arm64_sys_mount+0x514/0x5f0 [ 230.746911][ T6450] invoke_syscall+0x98/0x2b0 [ 230.747694][ T6450] el0_svc_common+0x138/0x258 [ 230.748476][ T6450] do_el0_svc+0x58/0x13c [ 230.749185][ T6450] el0_svc+0x78/0x1d0 [ 230.749871][ T6450] el0t_64_sync_handler+0xcc/0xe4 [ 230.750655][ T6450] el0t_64_sync+0x1a0/0x1a4 [ 230.753000][ T6450] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.755125][ T6450] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.970429][ T6452] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.971707][ T6452] CPU: 1 PID: 6452 Comm: syz.1.667 Not tainted syzkaller #0 [ 230.972832][ T6452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.974382][ T6452] Call trace: [ 230.974913][ T6452] dump_backtrace+0x0/0x458 [ 230.975691][ T6452] show_stack+0x2c/0x3c [ 230.976346][ T6452] __dump_stack+0x30/0x40 [ 230.977057][ T6452] dump_stack_lvl+0xf4/0x15c [ 230.977818][ T6452] dump_stack+0x1c/0x5c [ 230.978544][ T6452] sysfs_create_dir_ns+0x244/0x264 [ 230.979396][ T6452] kobject_add_internal+0x5ac/0xc3c [ 230.980191][ T6452] kobject_init_and_add+0x124/0x190 [ 230.981013][ T6452] gfs2_sys_fs_add+0x200/0x41c [ 230.981763][ T6452] gfs2_fill_super+0xddc/0x1a18 [ 230.982543][ T6452] get_tree_bdev+0x358/0x544 [ 230.983285][ T6452] gfs2_get_tree+0x54/0x1b4 [ 230.983992][ T6452] vfs_get_tree+0x90/0x274 [ 230.984712][ T6452] do_new_mount+0x228/0x810 [ 230.985372][ T6452] path_mount+0x5bc/0x1008 [ 230.986020][ T6452] __arm64_sys_mount+0x514/0x5f0 [ 230.986817][ T6452] invoke_syscall+0x98/0x2b0 [ 230.987626][ T6452] el0_svc_common+0x138/0x258 [ 230.988420][ T6452] do_el0_svc+0x58/0x13c [ 230.989117][ T6452] el0_svc+0x78/0x1d0 [ 230.989812][ T6452] el0t_64_sync_handler+0xcc/0xe4 [ 230.990601][ T6452] el0t_64_sync+0x1a0/0x1a4 [ 230.992739][ T6452] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.994887][ T6452] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.179612][ T6454] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.180815][ T6454] CPU: 1 PID: 6454 Comm: syz.1.668 Not tainted syzkaller #0 [ 231.181869][ T6454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.183423][ T6454] Call trace: [ 231.183950][ T6454] dump_backtrace+0x0/0x458 [ 231.184659][ T6454] show_stack+0x2c/0x3c [ 231.185335][ T6454] __dump_stack+0x30/0x40 [ 231.186001][ T6454] dump_stack_lvl+0xf4/0x15c [ 231.186701][ T6454] dump_stack+0x1c/0x5c [ 231.187327][ T6454] sysfs_create_dir_ns+0x244/0x264 [ 231.188107][ T6454] kobject_add_internal+0x5ac/0xc3c [ 231.189012][ T6454] kobject_init_and_add+0x124/0x190 [ 231.189849][ T6454] gfs2_sys_fs_add+0x200/0x41c [ 231.190623][ T6454] gfs2_fill_super+0xddc/0x1a18 [ 231.191361][ T6454] get_tree_bdev+0x358/0x544 [ 231.192077][ T6454] gfs2_get_tree+0x54/0x1b4 [ 231.192795][ T6454] vfs_get_tree+0x90/0x274 [ 231.193593][ T6454] do_new_mount+0x228/0x810 [ 231.194373][ T6454] path_mount+0x5bc/0x1008 [ 231.195056][ T6454] __arm64_sys_mount+0x514/0x5f0 [ 231.195889][ T6454] invoke_syscall+0x98/0x2b0 [ 231.196689][ T6454] el0_svc_common+0x138/0x258 [ 231.197504][ T6454] do_el0_svc+0x58/0x13c [ 231.198139][ T6454] el0_svc+0x78/0x1d0 [ 231.198723][ T6454] el0t_64_sync_handler+0xcc/0xe4 [ 231.199621][ T6454] el0t_64_sync+0x1a0/0x1a4 [ 231.202393][ T6454] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.204514][ T6454] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.439955][ T6456] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.441173][ T6456] CPU: 0 PID: 6456 Comm: syz.1.669 Not tainted syzkaller #0 [ 231.442289][ T6456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.444005][ T6456] Call trace: [ 231.444526][ T6456] dump_backtrace+0x0/0x458 [ 231.445269][ T6456] show_stack+0x2c/0x3c [ 231.445959][ T6456] __dump_stack+0x30/0x40 [ 231.446663][ T6456] dump_stack_lvl+0xf4/0x15c [ 231.447423][ T6456] dump_stack+0x1c/0x5c [ 231.448138][ T6456] sysfs_create_dir_ns+0x244/0x264 [ 231.448928][ T6456] kobject_add_internal+0x5ac/0xc3c [ 231.449705][ T6456] kobject_init_and_add+0x124/0x190 [ 231.450495][ T6456] gfs2_sys_fs_add+0x200/0x41c [ 231.451244][ T6456] gfs2_fill_super+0xddc/0x1a18 [ 231.451994][ T6456] get_tree_bdev+0x358/0x544 [ 231.452808][ T6456] gfs2_get_tree+0x54/0x1b4 [ 231.453561][ T6456] vfs_get_tree+0x90/0x274 [ 231.454285][ T6456] do_new_mount+0x228/0x810 [ 231.455022][ T6456] path_mount+0x5bc/0x1008 [ 231.455705][ T6456] __arm64_sys_mount+0x514/0x5f0 [ 231.456510][ T6456] invoke_syscall+0x98/0x2b0 [ 231.457176][ T6456] el0_svc_common+0x138/0x258 [ 231.457803][ T6456] do_el0_svc+0x58/0x13c [ 231.458488][ T6456] el0_svc+0x78/0x1d0 [ 231.459176][ T6456] el0t_64_sync_handler+0xcc/0xe4 [ 231.460038][ T6456] el0t_64_sync+0x1a0/0x1a4 [ 231.461594][ T6456] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.463639][ T6456] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.624666][ T6458] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.625839][ T6458] CPU: 0 PID: 6458 Comm: syz.1.670 Not tainted syzkaller #0 [ 231.627089][ T6458] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.628649][ T6458] Call trace: [ 231.629133][ T6458] dump_backtrace+0x0/0x458 [ 231.629880][ T6458] show_stack+0x2c/0x3c [ 231.630565][ T6458] __dump_stack+0x30/0x40 [ 231.631187][ T6458] dump_stack_lvl+0xf4/0x15c [ 231.631879][ T6458] dump_stack+0x1c/0x5c [ 231.632537][ T6458] sysfs_create_dir_ns+0x244/0x264 [ 231.633285][ T6458] kobject_add_internal+0x5ac/0xc3c [ 231.634064][ T6458] kobject_init_and_add+0x124/0x190 [ 231.634897][ T6458] gfs2_sys_fs_add+0x200/0x41c [ 231.635723][ T6458] gfs2_fill_super+0xddc/0x1a18 [ 231.636504][ T6458] get_tree_bdev+0x358/0x544 [ 231.637259][ T6458] gfs2_get_tree+0x54/0x1b4 [ 231.638028][ T6458] vfs_get_tree+0x90/0x274 [ 231.638692][ T6458] do_new_mount+0x228/0x810 [ 231.639398][ T6458] path_mount+0x5bc/0x1008 [ 231.640103][ T6458] __arm64_sys_mount+0x514/0x5f0 [ 231.640931][ T6458] invoke_syscall+0x98/0x2b0 [ 231.641676][ T6458] el0_svc_common+0x138/0x258 [ 231.642401][ T6458] do_el0_svc+0x58/0x13c [ 231.643107][ T6458] el0_svc+0x78/0x1d0 [ 231.643798][ T6458] el0t_64_sync_handler+0xcc/0xe4 [ 231.644669][ T6458] el0t_64_sync+0x1a0/0x1a4 [ 231.645546][ T6458] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.647872][ T6458] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.789916][ T6460] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.791239][ T6460] CPU: 1 PID: 6460 Comm: syz.1.671 Not tainted syzkaller #0 [ 231.792513][ T6460] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.794098][ T6460] Call trace: [ 231.794561][ T6460] dump_backtrace+0x0/0x458 [ 231.795319][ T6460] show_stack+0x2c/0x3c [ 231.795982][ T6460] __dump_stack+0x30/0x40 [ 231.796676][ T6460] dump_stack_lvl+0xf4/0x15c [ 231.797406][ T6460] dump_stack+0x1c/0x5c [ 231.798041][ T6460] sysfs_create_dir_ns+0x244/0x264 [ 231.798886][ T6460] kobject_add_internal+0x5ac/0xc3c [ 231.799764][ T6460] kobject_init_and_add+0x124/0x190 [ 231.800647][ T6460] gfs2_sys_fs_add+0x200/0x41c [ 231.801452][ T6460] gfs2_fill_super+0xddc/0x1a18 [ 231.802223][ T6460] get_tree_bdev+0x358/0x544 [ 231.802903][ T6460] gfs2_get_tree+0x54/0x1b4 [ 231.803583][ T6460] vfs_get_tree+0x90/0x274 [ 231.804273][ T6460] do_new_mount+0x228/0x810 [ 231.804951][ T6460] path_mount+0x5bc/0x1008 [ 231.805625][ T6460] __arm64_sys_mount+0x514/0x5f0 [ 231.806506][ T6460] invoke_syscall+0x98/0x2b0 [ 231.807260][ T6460] el0_svc_common+0x138/0x258 [ 231.808054][ T6460] do_el0_svc+0x58/0x13c [ 231.808804][ T6460] el0_svc+0x78/0x1d0 [ 231.809478][ T6460] el0t_64_sync_handler+0xcc/0xe4 [ 231.810320][ T6460] el0t_64_sync+0x1a0/0x1a4 [ 231.812491][ T6460] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.814422][ T6460] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.094098][ T6462] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.095393][ T6462] CPU: 0 PID: 6462 Comm: syz.1.672 Not tainted syzkaller #0 [ 232.096527][ T6462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.098030][ T6462] Call trace: [ 232.098551][ T6462] dump_backtrace+0x0/0x458 [ 232.099250][ T6462] show_stack+0x2c/0x3c [ 232.100020][ T6462] __dump_stack+0x30/0x40 [ 232.100800][ T6462] dump_stack_lvl+0xf4/0x15c [ 232.101610][ T6462] dump_stack+0x1c/0x5c [ 232.102308][ T6462] sysfs_create_dir_ns+0x244/0x264 [ 232.103109][ T6462] kobject_add_internal+0x5ac/0xc3c [ 232.103896][ T6462] kobject_init_and_add+0x124/0x190 [ 232.104726][ T6462] gfs2_sys_fs_add+0x200/0x41c [ 232.105437][ T6462] gfs2_fill_super+0xddc/0x1a18 [ 232.106228][ T6462] get_tree_bdev+0x358/0x544 [ 232.107011][ T6462] gfs2_get_tree+0x54/0x1b4 [ 232.107774][ T6462] vfs_get_tree+0x90/0x274 [ 232.108511][ T6462] do_new_mount+0x228/0x810 [ 232.109267][ T6462] path_mount+0x5bc/0x1008 [ 232.110015][ T6462] __arm64_sys_mount+0x514/0x5f0 [ 232.110743][ T6462] invoke_syscall+0x98/0x2b0 [ 232.111475][ T6462] el0_svc_common+0x138/0x258 [ 232.112252][ T6462] do_el0_svc+0x58/0x13c [ 232.112958][ T6462] el0_svc+0x78/0x1d0 [ 232.113600][ T6462] el0t_64_sync_handler+0xcc/0xe4 [ 232.114406][ T6462] el0t_64_sync+0x1a0/0x1a4 [ 232.115273][ T6462] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.117492][ T6462] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.314276][ T6464] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.315457][ T6464] CPU: 0 PID: 6464 Comm: syz.1.673 Not tainted syzkaller #0 [ 232.316656][ T6464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.318230][ T6464] Call trace: [ 232.318774][ T6464] dump_backtrace+0x0/0x458 [ 232.319539][ T6464] show_stack+0x2c/0x3c [ 232.320211][ T6464] __dump_stack+0x30/0x40 [ 232.320928][ T6464] dump_stack_lvl+0xf4/0x15c [ 232.321712][ T6464] dump_stack+0x1c/0x5c [ 232.322390][ T6464] sysfs_create_dir_ns+0x244/0x264 [ 232.323244][ T6464] kobject_add_internal+0x5ac/0xc3c [ 232.324116][ T6464] kobject_init_and_add+0x124/0x190 [ 232.324959][ T6464] gfs2_sys_fs_add+0x200/0x41c [ 232.325764][ T6464] gfs2_fill_super+0xddc/0x1a18 [ 232.326597][ T6464] get_tree_bdev+0x358/0x544 [ 232.327335][ T6464] gfs2_get_tree+0x54/0x1b4 [ 232.328087][ T6464] vfs_get_tree+0x90/0x274 [ 232.328725][ T6464] do_new_mount+0x228/0x810 [ 232.329478][ T6464] path_mount+0x5bc/0x1008 [ 232.330236][ T6464] __arm64_sys_mount+0x514/0x5f0 [ 232.330963][ T6464] invoke_syscall+0x98/0x2b0 [ 232.331642][ T6464] el0_svc_common+0x138/0x258 [ 232.332321][ T6464] do_el0_svc+0x58/0x13c [ 232.332952][ T6464] el0_svc+0x78/0x1d0 [ 232.333537][ T6464] el0t_64_sync_handler+0xcc/0xe4 [ 232.334407][ T6464] el0t_64_sync+0x1a0/0x1a4 [ 232.335302][ T6464] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.337197][ T6464] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.477889][ T6466] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.479313][ T6466] CPU: 0 PID: 6466 Comm: syz.1.674 Not tainted syzkaller #0 [ 232.480493][ T6466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.482149][ T6466] Call trace: [ 232.482624][ T6466] dump_backtrace+0x0/0x458 [ 232.483367][ T6466] show_stack+0x2c/0x3c [ 232.484105][ T6466] __dump_stack+0x30/0x40 [ 232.484848][ T6466] dump_stack_lvl+0xf4/0x15c [ 232.485596][ T6466] dump_stack+0x1c/0x5c [ 232.486274][ T6466] sysfs_create_dir_ns+0x244/0x264 [ 232.487163][ T6466] kobject_add_internal+0x5ac/0xc3c [ 232.487979][ T6466] kobject_init_and_add+0x124/0x190 [ 232.488859][ T6466] gfs2_sys_fs_add+0x200/0x41c [ 232.489665][ T6466] gfs2_fill_super+0xddc/0x1a18 [ 232.490460][ T6466] get_tree_bdev+0x358/0x544 [ 232.491135][ T6466] gfs2_get_tree+0x54/0x1b4 [ 232.491823][ T6466] vfs_get_tree+0x90/0x274 [ 232.492525][ T6466] do_new_mount+0x228/0x810 [ 232.493184][ T6466] path_mount+0x5bc/0x1008 [ 232.493834][ T6466] __arm64_sys_mount+0x514/0x5f0 [ 232.494638][ T6466] invoke_syscall+0x98/0x2b0 [ 232.495399][ T6466] el0_svc_common+0x138/0x258 [ 232.496206][ T6466] do_el0_svc+0x58/0x13c [ 232.496973][ T6466] el0_svc+0x78/0x1d0 [ 232.497665][ T6466] el0t_64_sync_handler+0xcc/0xe4 [ 232.498477][ T6466] el0t_64_sync+0x1a0/0x1a4 [ 232.500987][ T6466] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.503010][ T6466] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.683016][ T6468] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.684196][ T6468] CPU: 1 PID: 6468 Comm: syz.1.675 Not tainted syzkaller #0 [ 232.685280][ T6468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.686890][ T6468] Call trace: [ 232.687368][ T6468] dump_backtrace+0x0/0x458 [ 232.688080][ T6468] show_stack+0x2c/0x3c [ 232.688708][ T6468] __dump_stack+0x30/0x40 [ 232.689334][ T6468] dump_stack_lvl+0xf4/0x15c [ 232.690050][ T6468] dump_stack+0x1c/0x5c [ 232.690691][ T6468] sysfs_create_dir_ns+0x244/0x264 [ 232.691573][ T6468] kobject_add_internal+0x5ac/0xc3c [ 232.692411][ T6468] kobject_init_and_add+0x124/0x190 [ 232.693201][ T6468] gfs2_sys_fs_add+0x200/0x41c [ 232.693951][ T6468] gfs2_fill_super+0xddc/0x1a18 [ 232.694706][ T6468] get_tree_bdev+0x358/0x544 [ 232.695483][ T6468] gfs2_get_tree+0x54/0x1b4 [ 232.696106][ T6468] vfs_get_tree+0x90/0x274 [ 232.696851][ T6468] do_new_mount+0x228/0x810 [ 232.697618][ T6468] path_mount+0x5bc/0x1008 [ 232.698347][ T6468] __arm64_sys_mount+0x514/0x5f0 [ 232.699162][ T6468] invoke_syscall+0x98/0x2b0 [ 232.699909][ T6468] el0_svc_common+0x138/0x258 [ 232.700640][ T6468] do_el0_svc+0x58/0x13c [ 232.701314][ T6468] el0_svc+0x78/0x1d0 [ 232.701936][ T6468] el0t_64_sync_handler+0xcc/0xe4 [ 232.702741][ T6468] el0t_64_sync+0x1a0/0x1a4 [ 232.704846][ T6468] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.706823][ T6468] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.923555][ T6470] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.924716][ T6470] CPU: 1 PID: 6470 Comm: syz.1.676 Not tainted syzkaller #0 [ 232.925867][ T6470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.927381][ T6470] Call trace: [ 232.927873][ T6470] dump_backtrace+0x0/0x458 [ 232.928633][ T6470] show_stack+0x2c/0x3c [ 232.929311][ T6470] __dump_stack+0x30/0x40 [ 232.930056][ T6470] dump_stack_lvl+0xf4/0x15c [ 232.930812][ T6470] dump_stack+0x1c/0x5c [ 232.931474][ T6470] sysfs_create_dir_ns+0x244/0x264 [ 232.932257][ T6470] kobject_add_internal+0x5ac/0xc3c [ 232.933022][ T6470] kobject_init_and_add+0x124/0x190 [ 232.933815][ T6470] gfs2_sys_fs_add+0x200/0x41c [ 232.934552][ T6470] gfs2_fill_super+0xddc/0x1a18 [ 232.935257][ T6470] get_tree_bdev+0x358/0x544 [ 232.935894][ T6470] gfs2_get_tree+0x54/0x1b4 [ 232.936606][ T6470] vfs_get_tree+0x90/0x274 [ 232.937298][ T6470] do_new_mount+0x228/0x810 [ 232.937977][ T6470] path_mount+0x5bc/0x1008 [ 232.938632][ T6470] __arm64_sys_mount+0x514/0x5f0 [ 232.939354][ T6470] invoke_syscall+0x98/0x2b0 [ 232.940153][ T6470] el0_svc_common+0x138/0x258 [ 232.940861][ T6470] do_el0_svc+0x58/0x13c [ 232.941512][ T6470] el0_svc+0x78/0x1d0 [ 232.942157][ T6470] el0t_64_sync_handler+0xcc/0xe4 [ 232.943072][ T6470] el0t_64_sync+0x1a0/0x1a4 [ 232.944534][ T6470] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.946529][ T6470] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:52 executed programs: 663 [ 233.074793][ T6472] set_capacity_and_notify: 15 callbacks suppressed [ 233.074803][ T6472] loop1: detected capacity change from 0 to 32768 [ 233.119610][ T6472] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.120804][ T6472] CPU: 0 PID: 6472 Comm: syz.1.677 Not tainted syzkaller #0 [ 233.121916][ T6472] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.123469][ T6472] Call trace: [ 233.124058][ T6472] dump_backtrace+0x0/0x458 [ 233.124737][ T6472] show_stack+0x2c/0x3c [ 233.125359][ T6472] __dump_stack+0x30/0x40 [ 233.126048][ T6472] dump_stack_lvl+0xf4/0x15c [ 233.126789][ T6472] dump_stack+0x1c/0x5c [ 233.127430][ T6472] sysfs_create_dir_ns+0x244/0x264 [ 233.128212][ T6472] kobject_add_internal+0x5ac/0xc3c [ 233.129049][ T6472] kobject_init_and_add+0x124/0x190 [ 233.129789][ T6472] gfs2_sys_fs_add+0x200/0x41c [ 233.130478][ T6472] gfs2_fill_super+0xddc/0x1a18 [ 233.131206][ T6472] get_tree_bdev+0x358/0x544 [ 233.131923][ T6472] gfs2_get_tree+0x54/0x1b4 [ 233.132604][ T6472] vfs_get_tree+0x90/0x274 [ 233.133341][ T6472] do_new_mount+0x228/0x810 [ 233.134149][ T6472] path_mount+0x5bc/0x1008 [ 233.134919][ T6472] __arm64_sys_mount+0x514/0x5f0 [ 233.135743][ T6472] invoke_syscall+0x98/0x2b0 [ 233.136492][ T6472] el0_svc_common+0x138/0x258 [ 233.137246][ T6472] do_el0_svc+0x58/0x13c [ 233.137960][ T6472] el0_svc+0x78/0x1d0 [ 233.138603][ T6472] el0t_64_sync_handler+0xcc/0xe4 [ 233.139470][ T6472] el0t_64_sync+0x1a0/0x1a4 [ 233.144573][ T6472] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.146754][ T6472] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.397185][ T6474] loop1: detected capacity change from 0 to 32768 [ 233.473386][ T6474] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.475042][ T6474] CPU: 0 PID: 6474 Comm: syz.1.678 Not tainted syzkaller #0 [ 233.476252][ T6474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.477804][ T6474] Call trace: [ 233.478371][ T6474] dump_backtrace+0x0/0x458 [ 233.479046][ T6474] show_stack+0x2c/0x3c [ 233.479843][ T6474] __dump_stack+0x30/0x40 [ 233.480501][ T6474] dump_stack_lvl+0xf4/0x15c [ 233.481246][ T6474] dump_stack+0x1c/0x5c [ 233.481918][ T6474] sysfs_create_dir_ns+0x244/0x264 [ 233.482665][ T6474] kobject_add_internal+0x5ac/0xc3c [ 233.483511][ T6474] kobject_init_and_add+0x124/0x190 [ 233.484347][ T6474] gfs2_sys_fs_add+0x200/0x41c [ 233.485121][ T6474] gfs2_fill_super+0xddc/0x1a18 [ 233.485895][ T6474] get_tree_bdev+0x358/0x544 [ 233.486638][ T6474] gfs2_get_tree+0x54/0x1b4 [ 233.487295][ T6474] vfs_get_tree+0x90/0x274 [ 233.488053][ T6474] do_new_mount+0x228/0x810 [ 233.488809][ T6474] path_mount+0x5bc/0x1008 [ 233.489549][ T6474] __arm64_sys_mount+0x514/0x5f0 [ 233.490350][ T6474] invoke_syscall+0x98/0x2b0 [ 233.491058][ T6474] el0_svc_common+0x138/0x258 [ 233.491746][ T6474] do_el0_svc+0x58/0x13c [ 233.492378][ T6474] el0_svc+0x78/0x1d0 [ 233.492958][ T6474] el0t_64_sync_handler+0xcc/0xe4 [ 233.493667][ T6474] el0t_64_sync+0x1a0/0x1a4 [ 233.495988][ T6474] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.497998][ T6474] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.632600][ T6476] loop1: detected capacity change from 0 to 32768 [ 233.639797][ T6476] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.641055][ T6476] CPU: 1 PID: 6476 Comm: syz.1.679 Not tainted syzkaller #0 [ 233.642310][ T6476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.643815][ T6476] Call trace: [ 233.644272][ T6476] dump_backtrace+0x0/0x458 [ 233.644996][ T6476] show_stack+0x2c/0x3c [ 233.645598][ T6476] __dump_stack+0x30/0x40 [ 233.646203][ T6476] dump_stack_lvl+0xf4/0x15c [ 233.646848][ T6476] dump_stack+0x1c/0x5c [ 233.647451][ T6476] sysfs_create_dir_ns+0x244/0x264 [ 233.648233][ T6476] kobject_add_internal+0x5ac/0xc3c [ 233.648976][ T6476] kobject_init_and_add+0x124/0x190 [ 233.649763][ T6476] gfs2_sys_fs_add+0x200/0x41c [ 233.650474][ T6476] gfs2_fill_super+0xddc/0x1a18 [ 233.651309][ T6476] get_tree_bdev+0x358/0x544 [ 233.651982][ T6476] gfs2_get_tree+0x54/0x1b4 [ 233.652672][ T6476] vfs_get_tree+0x90/0x274 [ 233.653402][ T6476] do_new_mount+0x228/0x810 [ 233.654098][ T6476] path_mount+0x5bc/0x1008 [ 233.654815][ T6476] __arm64_sys_mount+0x514/0x5f0 [ 233.655575][ T6476] invoke_syscall+0x98/0x2b0 [ 233.656252][ T6476] el0_svc_common+0x138/0x258 [ 233.656950][ T6476] do_el0_svc+0x58/0x13c [ 233.657547][ T6476] el0_svc+0x78/0x1d0 [ 233.658146][ T6476] el0t_64_sync_handler+0xcc/0xe4 [ 233.658894][ T6476] el0t_64_sync+0x1a0/0x1a4 [ 233.659613][ T6476] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.661608][ T6476] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.793567][ T6478] loop1: detected capacity change from 0 to 32768 [ 233.801490][ T6478] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.802738][ T6478] CPU: 0 PID: 6478 Comm: syz.1.680 Not tainted syzkaller #0 [ 233.803949][ T6478] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.805562][ T6478] Call trace: [ 233.806071][ T6478] dump_backtrace+0x0/0x458 [ 233.806817][ T6478] show_stack+0x2c/0x3c [ 233.807432][ T6478] __dump_stack+0x30/0x40 [ 233.808084][ T6478] dump_stack_lvl+0xf4/0x15c [ 233.808830][ T6478] dump_stack+0x1c/0x5c [ 233.809499][ T6478] sysfs_create_dir_ns+0x244/0x264 [ 233.810306][ T6478] kobject_add_internal+0x5ac/0xc3c [ 233.811165][ T6478] kobject_init_and_add+0x124/0x190 [ 233.811986][ T6478] gfs2_sys_fs_add+0x200/0x41c [ 233.812754][ T6478] gfs2_fill_super+0xddc/0x1a18 [ 233.813576][ T6478] get_tree_bdev+0x358/0x544 [ 233.814396][ T6478] gfs2_get_tree+0x54/0x1b4 [ 233.815109][ T6478] vfs_get_tree+0x90/0x274 [ 233.815823][ T6478] do_new_mount+0x228/0x810 [ 233.816560][ T6478] path_mount+0x5bc/0x1008 [ 233.817317][ T6478] __arm64_sys_mount+0x514/0x5f0 [ 233.818111][ T6478] invoke_syscall+0x98/0x2b0 [ 233.818905][ T6478] el0_svc_common+0x138/0x258 [ 233.819654][ T6478] do_el0_svc+0x58/0x13c [ 233.820356][ T6478] el0_svc+0x78/0x1d0 [ 233.821006][ T6478] el0t_64_sync_handler+0xcc/0xe4 [ 233.821829][ T6478] el0t_64_sync+0x1a0/0x1a4 [ 233.824013][ T6478] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.825998][ T6478] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.956412][ T6480] loop1: detected capacity change from 0 to 32768 [ 233.989717][ T6480] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.990893][ T6480] CPU: 1 PID: 6480 Comm: syz.1.681 Not tainted syzkaller #0 [ 233.992034][ T6480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.993622][ T6480] Call trace: [ 233.994135][ T6480] dump_backtrace+0x0/0x458 [ 233.994933][ T6480] show_stack+0x2c/0x3c [ 233.995614][ T6480] __dump_stack+0x30/0x40 [ 233.996278][ T6480] dump_stack_lvl+0xf4/0x15c [ 233.996966][ T6480] dump_stack+0x1c/0x5c [ 233.997572][ T6480] sysfs_create_dir_ns+0x244/0x264 [ 233.998389][ T6480] kobject_add_internal+0x5ac/0xc3c [ 233.999224][ T6480] kobject_init_and_add+0x124/0x190 [ 234.000099][ T6480] gfs2_sys_fs_add+0x200/0x41c [ 234.000893][ T6480] gfs2_fill_super+0xddc/0x1a18 [ 234.001699][ T6480] get_tree_bdev+0x358/0x544 [ 234.002428][ T6480] gfs2_get_tree+0x54/0x1b4 [ 234.003176][ T6480] vfs_get_tree+0x90/0x274 [ 234.003939][ T6480] do_new_mount+0x228/0x810 [ 234.004675][ T6480] path_mount+0x5bc/0x1008 [ 234.005448][ T6480] __arm64_sys_mount+0x514/0x5f0 [ 234.006251][ T6480] invoke_syscall+0x98/0x2b0 [ 234.007040][ T6480] el0_svc_common+0x138/0x258 [ 234.007794][ T6480] do_el0_svc+0x58/0x13c [ 234.008498][ T6480] el0_svc+0x78/0x1d0 [ 234.009179][ T6480] el0t_64_sync_handler+0xcc/0xe4 [ 234.010056][ T6480] el0t_64_sync+0x1a0/0x1a4 [ 234.011092][ T6480] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.013080][ T6480] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.195319][ T6482] loop1: detected capacity change from 0 to 32768 [ 234.249700][ T6482] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.251289][ T6482] CPU: 1 PID: 6482 Comm: syz.1.682 Not tainted syzkaller #0 [ 234.252445][ T6482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.253997][ T6482] Call trace: [ 234.254469][ T6482] dump_backtrace+0x0/0x458 [ 234.255157][ T6482] show_stack+0x2c/0x3c [ 234.255880][ T6482] __dump_stack+0x30/0x40 [ 234.256572][ T6482] dump_stack_lvl+0xf4/0x15c [ 234.257338][ T6482] dump_stack+0x1c/0x5c [ 234.257996][ T6482] sysfs_create_dir_ns+0x244/0x264 [ 234.258848][ T6482] kobject_add_internal+0x5ac/0xc3c [ 234.259683][ T6482] kobject_init_and_add+0x124/0x190 [ 234.260552][ T6482] gfs2_sys_fs_add+0x200/0x41c [ 234.261329][ T6482] gfs2_fill_super+0xddc/0x1a18 [ 234.262064][ T6482] get_tree_bdev+0x358/0x544 [ 234.262781][ T6482] gfs2_get_tree+0x54/0x1b4 [ 234.263432][ T6482] vfs_get_tree+0x90/0x274 [ 234.264076][ T6482] do_new_mount+0x228/0x810 [ 234.264792][ T6482] path_mount+0x5bc/0x1008 [ 234.265540][ T6482] __arm64_sys_mount+0x514/0x5f0 [ 234.266381][ T6482] invoke_syscall+0x98/0x2b0 [ 234.267140][ T6482] el0_svc_common+0x138/0x258 [ 234.267943][ T6482] do_el0_svc+0x58/0x13c [ 234.268640][ T6482] el0_svc+0x78/0x1d0 [ 234.269278][ T6482] el0t_64_sync_handler+0xcc/0xe4 [ 234.270086][ T6482] el0t_64_sync+0x1a0/0x1a4 [ 234.274763][ T6482] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.276862][ T6482] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.410831][ T6484] loop1: detected capacity change from 0 to 32768 [ 234.419318][ T6484] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.420528][ T6484] CPU: 0 PID: 6484 Comm: syz.1.683 Not tainted syzkaller #0 [ 234.421714][ T6484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.423209][ T6484] Call trace: [ 234.423704][ T6484] dump_backtrace+0x0/0x458 [ 234.424371][ T6484] show_stack+0x2c/0x3c [ 234.424959][ T6484] __dump_stack+0x30/0x40 [ 234.425537][ T6484] dump_stack_lvl+0xf4/0x15c [ 234.426156][ T6484] dump_stack+0x1c/0x5c [ 234.426776][ T6484] sysfs_create_dir_ns+0x244/0x264 [ 234.427618][ T6484] kobject_add_internal+0x5ac/0xc3c [ 234.428612][ T6484] kobject_init_and_add+0x124/0x190 [ 234.429475][ T6484] gfs2_sys_fs_add+0x200/0x41c [ 234.430256][ T6484] gfs2_fill_super+0xddc/0x1a18 [ 234.430998][ T6484] get_tree_bdev+0x358/0x544 [ 234.431646][ T6484] gfs2_get_tree+0x54/0x1b4 [ 234.432279][ T6484] vfs_get_tree+0x90/0x274 [ 234.432937][ T6484] do_new_mount+0x228/0x810 [ 234.433647][ T6484] path_mount+0x5bc/0x1008 [ 234.434308][ T6484] __arm64_sys_mount+0x514/0x5f0 [ 234.435050][ T6484] invoke_syscall+0x98/0x2b0 [ 234.435824][ T6484] el0_svc_common+0x138/0x258 [ 234.436504][ T6484] do_el0_svc+0x58/0x13c [ 234.437158][ T6484] el0_svc+0x78/0x1d0 [ 234.437796][ T6484] el0t_64_sync_handler+0xcc/0xe4 [ 234.438584][ T6484] el0t_64_sync+0x1a0/0x1a4 [ 234.440940][ T6484] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.442841][ T6484] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.667279][ T6486] loop1: detected capacity change from 0 to 32768 [ 234.724612][ T6486] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.725875][ T6486] CPU: 0 PID: 6486 Comm: syz.1.684 Not tainted syzkaller #0 [ 234.726987][ T6486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.728624][ T6486] Call trace: [ 234.729105][ T6486] dump_backtrace+0x0/0x458 [ 234.729907][ T6486] show_stack+0x2c/0x3c [ 234.730589][ T6486] __dump_stack+0x30/0x40 [ 234.731295][ T6486] dump_stack_lvl+0xf4/0x15c [ 234.732003][ T6486] dump_stack+0x1c/0x5c [ 234.732715][ T6486] sysfs_create_dir_ns+0x244/0x264 [ 234.733537][ T6486] kobject_add_internal+0x5ac/0xc3c [ 234.734432][ T6486] kobject_init_and_add+0x124/0x190 [ 234.735346][ T6486] gfs2_sys_fs_add+0x200/0x41c [ 234.736130][ T6486] gfs2_fill_super+0xddc/0x1a18 [ 234.736839][ T6486] get_tree_bdev+0x358/0x544 [ 234.737501][ T6486] gfs2_get_tree+0x54/0x1b4 [ 234.738327][ T6486] vfs_get_tree+0x90/0x274 [ 234.739076][ T6486] do_new_mount+0x228/0x810 [ 234.739841][ T6486] path_mount+0x5bc/0x1008 [ 234.740559][ T6486] __arm64_sys_mount+0x514/0x5f0 [ 234.741381][ T6486] invoke_syscall+0x98/0x2b0 [ 234.742152][ T6486] el0_svc_common+0x138/0x258 [ 234.742904][ T6486] do_el0_svc+0x58/0x13c [ 234.743569][ T6486] el0_svc+0x78/0x1d0 [ 234.744225][ T6486] el0t_64_sync_handler+0xcc/0xe4 [ 234.745063][ T6486] el0t_64_sync+0x1a0/0x1a4 [ 234.748260][ T6486] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.750320][ T6486] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.883681][ T6488] loop1: detected capacity change from 0 to 32768 [ 234.922732][ T6488] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.924022][ T6488] CPU: 1 PID: 6488 Comm: syz.1.685 Not tainted syzkaller #0 [ 234.925253][ T6488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.926896][ T6488] Call trace: [ 234.927457][ T6488] dump_backtrace+0x0/0x458 [ 234.928142][ T6488] show_stack+0x2c/0x3c [ 234.928790][ T6488] __dump_stack+0x30/0x40 [ 234.929558][ T6488] dump_stack_lvl+0xf4/0x15c [ 234.930328][ T6488] dump_stack+0x1c/0x5c [ 234.931118][ T6488] sysfs_create_dir_ns+0x244/0x264 [ 234.931997][ T6488] kobject_add_internal+0x5ac/0xc3c [ 234.932919][ T6488] kobject_init_and_add+0x124/0x190 [ 234.933770][ T6488] gfs2_sys_fs_add+0x200/0x41c [ 234.934594][ T6488] gfs2_fill_super+0xddc/0x1a18 [ 234.935309][ T6488] get_tree_bdev+0x358/0x544 [ 234.936056][ T6488] gfs2_get_tree+0x54/0x1b4 [ 234.936659][ T6488] vfs_get_tree+0x90/0x274 [ 234.937309][ T6488] do_new_mount+0x228/0x810 [ 234.937938][ T6488] path_mount+0x5bc/0x1008 [ 234.938665][ T6488] __arm64_sys_mount+0x514/0x5f0 [ 234.939401][ T6488] invoke_syscall+0x98/0x2b0 [ 234.940074][ T6488] el0_svc_common+0x138/0x258 [ 234.940818][ T6488] do_el0_svc+0x58/0x13c [ 234.941459][ T6488] el0_svc+0x78/0x1d0 [ 234.942040][ T6488] el0t_64_sync_handler+0xcc/0xe4 [ 234.942703][ T6488] el0t_64_sync+0x1a0/0x1a4 [ 234.944240][ T6488] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.946240][ T6488] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.081999][ T6490] loop1: detected capacity change from 0 to 32768 [ 235.184309][ T6490] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.185634][ T6490] CPU: 0 PID: 6490 Comm: syz.1.686 Not tainted syzkaller #0 [ 235.186761][ T6490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.188242][ T6490] Call trace: [ 235.188793][ T6490] dump_backtrace+0x0/0x458 [ 235.189489][ T6490] show_stack+0x2c/0x3c [ 235.190201][ T6490] __dump_stack+0x30/0x40 [ 235.190947][ T6490] dump_stack_lvl+0xf4/0x15c [ 235.191729][ T6490] dump_stack+0x1c/0x5c [ 235.192346][ T6490] sysfs_create_dir_ns+0x244/0x264 [ 235.193168][ T6490] kobject_add_internal+0x5ac/0xc3c [ 235.193909][ T6490] kobject_init_and_add+0x124/0x190 [ 235.194688][ T6490] gfs2_sys_fs_add+0x200/0x41c [ 235.195471][ T6490] gfs2_fill_super+0xddc/0x1a18 [ 235.196267][ T6490] get_tree_bdev+0x358/0x544 [ 235.197002][ T6490] gfs2_get_tree+0x54/0x1b4 [ 235.197729][ T6490] vfs_get_tree+0x90/0x274 [ 235.198387][ T6490] do_new_mount+0x228/0x810 [ 235.199080][ T6490] path_mount+0x5bc/0x1008 [ 235.199788][ T6490] __arm64_sys_mount+0x514/0x5f0 [ 235.200542][ T6490] invoke_syscall+0x98/0x2b0 [ 235.201264][ T6490] el0_svc_common+0x138/0x258 [ 235.201942][ T6490] do_el0_svc+0x58/0x13c [ 235.202570][ T6490] el0_svc+0x78/0x1d0 [ 235.203180][ T6490] el0t_64_sync_handler+0xcc/0xe4 [ 235.203966][ T6490] el0t_64_sync+0x1a0/0x1a4 [ 235.206211][ T6490] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.208467][ T6490] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.444412][ T6492] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.445737][ T6492] CPU: 0 PID: 6492 Comm: syz.1.687 Not tainted syzkaller #0 [ 235.446937][ T6492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.448607][ T6492] Call trace: [ 235.449062][ T6492] dump_backtrace+0x0/0x458 [ 235.449771][ T6492] show_stack+0x2c/0x3c [ 235.450352][ T6492] __dump_stack+0x30/0x40 [ 235.451095][ T6492] dump_stack_lvl+0xf4/0x15c [ 235.451854][ T6492] dump_stack+0x1c/0x5c [ 235.452515][ T6492] sysfs_create_dir_ns+0x244/0x264 [ 235.453362][ T6492] kobject_add_internal+0x5ac/0xc3c [ 235.454181][ T6492] kobject_init_and_add+0x124/0x190 [ 235.454994][ T6492] gfs2_sys_fs_add+0x200/0x41c [ 235.455767][ T6492] gfs2_fill_super+0xddc/0x1a18 [ 235.456534][ T6492] get_tree_bdev+0x358/0x544 [ 235.457239][ T6492] gfs2_get_tree+0x54/0x1b4 [ 235.457985][ T6492] vfs_get_tree+0x90/0x274 [ 235.458707][ T6492] do_new_mount+0x228/0x810 [ 235.459470][ T6492] path_mount+0x5bc/0x1008 [ 235.460253][ T6492] __arm64_sys_mount+0x514/0x5f0 [ 235.461078][ T6492] invoke_syscall+0x98/0x2b0 [ 235.461831][ T6492] el0_svc_common+0x138/0x258 [ 235.462569][ T6492] do_el0_svc+0x58/0x13c [ 235.463308][ T6492] el0_svc+0x78/0x1d0 [ 235.463963][ T6492] el0t_64_sync_handler+0xcc/0xe4 [ 235.464729][ T6492] el0t_64_sync+0x1a0/0x1a4 [ 235.466912][ T6492] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.469069][ T6492] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.607689][ T6494] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.609042][ T6494] CPU: 1 PID: 6494 Comm: syz.1.688 Not tainted syzkaller #0 [ 235.610176][ T6494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.611803][ T6494] Call trace: [ 235.612291][ T6494] dump_backtrace+0x0/0x458 [ 235.613058][ T6494] show_stack+0x2c/0x3c [ 235.613669][ T6494] __dump_stack+0x30/0x40 [ 235.614408][ T6494] dump_stack_lvl+0xf4/0x15c [ 235.615237][ T6494] dump_stack+0x1c/0x5c [ 235.615878][ T6494] sysfs_create_dir_ns+0x244/0x264 [ 235.616680][ T6494] kobject_add_internal+0x5ac/0xc3c [ 235.617487][ T6494] kobject_init_and_add+0x124/0x190 [ 235.618369][ T6494] gfs2_sys_fs_add+0x200/0x41c [ 235.619182][ T6494] gfs2_fill_super+0xddc/0x1a18 [ 235.619975][ T6494] get_tree_bdev+0x358/0x544 [ 235.620718][ T6494] gfs2_get_tree+0x54/0x1b4 [ 235.621454][ T6494] vfs_get_tree+0x90/0x274 [ 235.622090][ T6494] do_new_mount+0x228/0x810 [ 235.622775][ T6494] path_mount+0x5bc/0x1008 [ 235.623407][ T6494] __arm64_sys_mount+0x514/0x5f0 [ 235.624232][ T6494] invoke_syscall+0x98/0x2b0 [ 235.625023][ T6494] el0_svc_common+0x138/0x258 [ 235.625852][ T6494] do_el0_svc+0x58/0x13c [ 235.626584][ T6494] el0_svc+0x78/0x1d0 [ 235.627312][ T6494] el0t_64_sync_handler+0xcc/0xe4 [ 235.628048][ T6494] el0t_64_sync+0x1a0/0x1a4 [ 235.630822][ T6494] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.632894][ T6494] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.776907][ T6496] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.778262][ T6496] CPU: 1 PID: 6496 Comm: syz.1.689 Not tainted syzkaller #0 [ 235.779508][ T6496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.781260][ T6496] Call trace: [ 235.781798][ T6496] dump_backtrace+0x0/0x458 [ 235.782557][ T6496] show_stack+0x2c/0x3c [ 235.783234][ T6496] __dump_stack+0x30/0x40 [ 235.783897][ T6496] dump_stack_lvl+0xf4/0x15c [ 235.784532][ T6496] dump_stack+0x1c/0x5c [ 235.785153][ T6496] sysfs_create_dir_ns+0x244/0x264 [ 235.785927][ T6496] kobject_add_internal+0x5ac/0xc3c [ 235.786716][ T6496] kobject_init_and_add+0x124/0x190 [ 235.787469][ T6496] gfs2_sys_fs_add+0x200/0x41c [ 235.788267][ T6496] gfs2_fill_super+0xddc/0x1a18 [ 235.789099][ T6496] get_tree_bdev+0x358/0x544 [ 235.789845][ T6496] gfs2_get_tree+0x54/0x1b4 [ 235.790594][ T6496] vfs_get_tree+0x90/0x274 [ 235.791313][ T6496] do_new_mount+0x228/0x810 [ 235.792077][ T6496] path_mount+0x5bc/0x1008 [ 235.792828][ T6496] __arm64_sys_mount+0x514/0x5f0 [ 235.793677][ T6496] invoke_syscall+0x98/0x2b0 [ 235.794480][ T6496] el0_svc_common+0x138/0x258 [ 235.795214][ T6496] do_el0_svc+0x58/0x13c [ 235.795853][ T6496] el0_svc+0x78/0x1d0 [ 235.796482][ T6496] el0t_64_sync_handler+0xcc/0xe4 [ 235.797263][ T6496] el0t_64_sync+0x1a0/0x1a4 [ 235.799455][ T6496] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.801615][ T6496] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.937969][ T6498] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.939237][ T6498] CPU: 0 PID: 6498 Comm: syz.1.690 Not tainted syzkaller #0 [ 235.940434][ T6498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.942060][ T6498] Call trace: [ 235.942642][ T6498] dump_backtrace+0x0/0x458 [ 235.943232][ T6498] show_stack+0x2c/0x3c [ 235.943795][ T6498] __dump_stack+0x30/0x40 [ 235.944456][ T6498] dump_stack_lvl+0xf4/0x15c [ 235.945168][ T6498] dump_stack+0x1c/0x5c [ 235.945791][ T6498] sysfs_create_dir_ns+0x244/0x264 [ 235.946512][ T6498] kobject_add_internal+0x5ac/0xc3c [ 235.947322][ T6498] kobject_init_and_add+0x124/0x190 [ 235.948101][ T6498] gfs2_sys_fs_add+0x200/0x41c [ 235.949059][ T6498] gfs2_fill_super+0xddc/0x1a18 [ 235.949843][ T6498] get_tree_bdev+0x358/0x544 [ 235.950516][ T6498] gfs2_get_tree+0x54/0x1b4 [ 235.951223][ T6498] vfs_get_tree+0x90/0x274 [ 235.951898][ T6498] do_new_mount+0x228/0x810 [ 235.952675][ T6498] path_mount+0x5bc/0x1008 [ 235.953392][ T6498] __arm64_sys_mount+0x514/0x5f0 [ 235.954278][ T6498] invoke_syscall+0x98/0x2b0 [ 235.954993][ T6498] el0_svc_common+0x138/0x258 [ 235.955790][ T6498] do_el0_svc+0x58/0x13c [ 235.956487][ T6498] el0_svc+0x78/0x1d0 [ 235.957114][ T6498] el0t_64_sync_handler+0xcc/0xe4 [ 235.957966][ T6498] el0t_64_sync+0x1a0/0x1a4 [ 235.959052][ T6498] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.961082][ T6498] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.139931][ T6500] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.141139][ T6500] CPU: 1 PID: 6500 Comm: syz.1.691 Not tainted syzkaller #0 [ 236.142202][ T6500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.143713][ T6500] Call trace: [ 236.144211][ T6500] dump_backtrace+0x0/0x458 [ 236.144935][ T6500] show_stack+0x2c/0x3c [ 236.145689][ T6500] __dump_stack+0x30/0x40 [ 236.146399][ T6500] dump_stack_lvl+0xf4/0x15c [ 236.147099][ T6500] dump_stack+0x1c/0x5c [ 236.147737][ T6500] sysfs_create_dir_ns+0x244/0x264 [ 236.148547][ T6500] kobject_add_internal+0x5ac/0xc3c [ 236.149427][ T6500] kobject_init_and_add+0x124/0x190 [ 236.150330][ T6500] gfs2_sys_fs_add+0x200/0x41c [ 236.151095][ T6500] gfs2_fill_super+0xddc/0x1a18 [ 236.151871][ T6500] get_tree_bdev+0x358/0x544 [ 236.152626][ T6500] gfs2_get_tree+0x54/0x1b4 [ 236.153409][ T6500] vfs_get_tree+0x90/0x274 [ 236.154123][ T6500] do_new_mount+0x228/0x810 [ 236.154863][ T6500] path_mount+0x5bc/0x1008 [ 236.155654][ T6500] __arm64_sys_mount+0x514/0x5f0 [ 236.156491][ T6500] invoke_syscall+0x98/0x2b0 [ 236.157278][ T6500] el0_svc_common+0x138/0x258 [ 236.158006][ T6500] do_el0_svc+0x58/0x13c [ 236.158682][ T6500] el0_svc+0x78/0x1d0 [ 236.159391][ T6500] el0t_64_sync_handler+0xcc/0xe4 [ 236.160223][ T6500] el0t_64_sync+0x1a0/0x1a4 [ 236.162638][ T6500] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.164728][ T6500] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.304470][ T6502] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.305735][ T6502] CPU: 0 PID: 6502 Comm: syz.1.692 Not tainted syzkaller #0 [ 236.306789][ T6502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.308268][ T6502] Call trace: [ 236.308830][ T6502] dump_backtrace+0x0/0x458 [ 236.309621][ T6502] show_stack+0x2c/0x3c [ 236.310267][ T6502] __dump_stack+0x30/0x40 [ 236.310955][ T6502] dump_stack_lvl+0xf4/0x15c [ 236.311691][ T6502] dump_stack+0x1c/0x5c [ 236.312355][ T6502] sysfs_create_dir_ns+0x244/0x264 [ 236.313172][ T6502] kobject_add_internal+0x5ac/0xc3c [ 236.314025][ T6502] kobject_init_and_add+0x124/0x190 [ 236.314877][ T6502] gfs2_sys_fs_add+0x200/0x41c [ 236.315653][ T6502] gfs2_fill_super+0xddc/0x1a18 [ 236.316438][ T6502] get_tree_bdev+0x358/0x544 [ 236.317160][ T6502] gfs2_get_tree+0x54/0x1b4 [ 236.317838][ T6502] vfs_get_tree+0x90/0x274 [ 236.318536][ T6502] do_new_mount+0x228/0x810 [ 236.319215][ T6502] path_mount+0x5bc/0x1008 [ 236.319835][ T6502] __arm64_sys_mount+0x514/0x5f0 [ 236.320662][ T6502] invoke_syscall+0x98/0x2b0 [ 236.321419][ T6502] el0_svc_common+0x138/0x258 [ 236.322285][ T6502] do_el0_svc+0x58/0x13c [ 236.323005][ T6502] el0_svc+0x78/0x1d0 [ 236.323636][ T6502] el0t_64_sync_handler+0xcc/0xe4 [ 236.324423][ T6502] el0t_64_sync+0x1a0/0x1a4 [ 236.325429][ T6502] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.327393][ T6502] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.499459][ T6504] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.500679][ T6504] CPU: 1 PID: 6504 Comm: syz.1.693 Not tainted syzkaller #0 [ 236.501854][ T6504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.503401][ T6504] Call trace: [ 236.503915][ T6504] dump_backtrace+0x0/0x458 [ 236.504627][ T6504] show_stack+0x2c/0x3c [ 236.505264][ T6504] __dump_stack+0x30/0x40 [ 236.505935][ T6504] dump_stack_lvl+0xf4/0x15c [ 236.506608][ T6504] dump_stack+0x1c/0x5c [ 236.507303][ T6504] sysfs_create_dir_ns+0x244/0x264 [ 236.508203][ T6504] kobject_add_internal+0x5ac/0xc3c [ 236.509109][ T6504] kobject_init_and_add+0x124/0x190 [ 236.509977][ T6504] gfs2_sys_fs_add+0x200/0x41c [ 236.510768][ T6504] gfs2_fill_super+0xddc/0x1a18 [ 236.511547][ T6504] get_tree_bdev+0x358/0x544 [ 236.512289][ T6504] gfs2_get_tree+0x54/0x1b4 [ 236.512995][ T6504] vfs_get_tree+0x90/0x274 [ 236.513705][ T6504] do_new_mount+0x228/0x810 [ 236.514427][ T6504] path_mount+0x5bc/0x1008 [ 236.515199][ T6504] __arm64_sys_mount+0x514/0x5f0 [ 236.516040][ T6504] invoke_syscall+0x98/0x2b0 [ 236.516828][ T6504] el0_svc_common+0x138/0x258 [ 236.517648][ T6504] do_el0_svc+0x58/0x13c [ 236.518385][ T6504] el0_svc+0x78/0x1d0 [ 236.519019][ T6504] el0t_64_sync_handler+0xcc/0xe4 [ 236.519837][ T6504] el0t_64_sync+0x1a0/0x1a4 [ 236.521897][ T6504] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.523909][ T6504] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.667201][ T6506] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.668499][ T6506] CPU: 0 PID: 6506 Comm: syz.1.694 Not tainted syzkaller #0 [ 236.669701][ T6506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.671280][ T6506] Call trace: [ 236.671775][ T6506] dump_backtrace+0x0/0x458 [ 236.672511][ T6506] show_stack+0x2c/0x3c [ 236.673186][ T6506] __dump_stack+0x30/0x40 [ 236.673890][ T6506] dump_stack_lvl+0xf4/0x15c [ 236.674677][ T6506] dump_stack+0x1c/0x5c [ 236.675393][ T6506] sysfs_create_dir_ns+0x244/0x264 [ 236.676309][ T6506] kobject_add_internal+0x5ac/0xc3c [ 236.677132][ T6506] kobject_init_and_add+0x124/0x190 [ 236.677996][ T6506] gfs2_sys_fs_add+0x200/0x41c [ 236.678751][ T6506] gfs2_fill_super+0xddc/0x1a18 [ 236.679629][ T6506] get_tree_bdev+0x358/0x544 [ 236.680362][ T6506] gfs2_get_tree+0x54/0x1b4 [ 236.681109][ T6506] vfs_get_tree+0x90/0x274 [ 236.681813][ T6506] do_new_mount+0x228/0x810 [ 236.682503][ T6506] path_mount+0x5bc/0x1008 [ 236.683167][ T6506] __arm64_sys_mount+0x514/0x5f0 [ 236.683879][ T6506] invoke_syscall+0x98/0x2b0 [ 236.684593][ T6506] el0_svc_common+0x138/0x258 [ 236.685348][ T6506] do_el0_svc+0x58/0x13c [ 236.685987][ T6506] el0_svc+0x78/0x1d0 [ 236.686639][ T6506] el0t_64_sync_handler+0xcc/0xe4 [ 236.687479][ T6506] el0t_64_sync+0x1a0/0x1a4 [ 236.688558][ T6506] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.690432][ T6506] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.864119][ T6508] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.865387][ T6508] CPU: 0 PID: 6508 Comm: syz.1.695 Not tainted syzkaller #0 [ 236.866542][ T6508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.868185][ T6508] Call trace: [ 236.868726][ T6508] dump_backtrace+0x0/0x458 [ 236.869469][ T6508] show_stack+0x2c/0x3c [ 236.870140][ T6508] __dump_stack+0x30/0x40 [ 236.870836][ T6508] dump_stack_lvl+0xf4/0x15c [ 236.871556][ T6508] dump_stack+0x1c/0x5c [ 236.872285][ T6508] sysfs_create_dir_ns+0x244/0x264 [ 236.873139][ T6508] kobject_add_internal+0x5ac/0xc3c [ 236.874011][ T6508] kobject_init_and_add+0x124/0x190 [ 236.874870][ T6508] gfs2_sys_fs_add+0x200/0x41c [ 236.875695][ T6508] gfs2_fill_super+0xddc/0x1a18 [ 236.876430][ T6508] get_tree_bdev+0x358/0x544 [ 236.877170][ T6508] gfs2_get_tree+0x54/0x1b4 [ 236.877925][ T6508] vfs_get_tree+0x90/0x274 [ 236.878653][ T6508] do_new_mount+0x228/0x810 [ 236.879414][ T6508] path_mount+0x5bc/0x1008 [ 236.880138][ T6508] __arm64_sys_mount+0x514/0x5f0 [ 236.881081][ T6508] invoke_syscall+0x98/0x2b0 [ 236.881800][ T6508] el0_svc_common+0x138/0x258 [ 236.882501][ T6508] do_el0_svc+0x58/0x13c [ 236.883197][ T6508] el0_svc+0x78/0x1d0 [ 236.883855][ T6508] el0t_64_sync_handler+0xcc/0xe4 [ 236.884679][ T6508] el0t_64_sync+0x1a0/0x1a4 [ 236.887164][ T6508] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.890639][ T6508] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.134528][ T6510] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.135747][ T6510] CPU: 1 PID: 6510 Comm: syz.1.696 Not tainted syzkaller #0 [ 237.136897][ T6510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 237.138647][ T6510] Call trace: [ 237.139147][ T6510] dump_backtrace+0x0/0x458 [ 237.139882][ T6510] show_stack+0x2c/0x3c [ 237.140557][ T6510] __dump_stack+0x30/0x40 [ 237.141204][ T6510] dump_stack_lvl+0xf4/0x15c [ 237.141902][ T6510] dump_stack+0x1c/0x5c [ 237.142556][ T6510] sysfs_create_dir_ns+0x244/0x264 [ 237.143288][ T6510] kobject_add_internal+0x5ac/0xc3c [ 237.144193][ T6510] kobject_init_and_add+0x124/0x190 [ 237.144965][ T6510] gfs2_sys_fs_add+0x200/0x41c [ 237.145717][ T6510] gfs2_fill_super+0xddc/0x1a18 [ 237.146508][ T6510] get_tree_bdev+0x358/0x544 [ 237.147230][ T6510] gfs2_get_tree+0x54/0x1b4 [ 237.147972][ T6510] vfs_get_tree+0x90/0x274 [ 237.148727][ T6510] do_new_mount+0x228/0x810 [ 237.149526][ T6510] path_mount+0x5bc/0x1008 [ 237.150232][ T6510] __arm64_sys_mount+0x514/0x5f0 [ 237.151039][ T6510] invoke_syscall+0x98/0x2b0 [ 237.151863][ T6510] el0_svc_common+0x138/0x258 [ 237.152732][ T6510] do_el0_svc+0x58/0x13c [ 237.153440][ T6510] el0_svc+0x78/0x1d0 [ 237.154130][ T6510] el0t_64_sync_handler+0xcc/0xe4 [ 237.154961][ T6510] el0t_64_sync+0x1a0/0x1a4 [ 237.156490][ T6510] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.158533][ T6510] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.337907][ T6512] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.341025][ T6512] CPU: 0 PID: 6512 Comm: syz.1.697 Not tainted syzkaller #0 [ 237.342191][ T6512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 237.343767][ T6512] Call trace: [ 237.344338][ T6512] dump_backtrace+0x0/0x458 [ 237.345087][ T6512] show_stack+0x2c/0x3c [ 237.345740][ T6512] __dump_stack+0x30/0x40 [ 237.346403][ T6512] dump_stack_lvl+0xf4/0x15c [ 237.347102][ T6512] dump_stack+0x1c/0x5c [ 237.347736][ T6512] sysfs_create_dir_ns+0x244/0x264 [ 237.348504][ T6512] kobject_add_internal+0x5ac/0xc3c [ 237.349291][ T6512] kobject_init_and_add+0x124/0x190 [ 237.350097][ T6512] gfs2_sys_fs_add+0x200/0x41c [ 237.350869][ T6512] gfs2_fill_super+0xddc/0x1a18 [ 237.351610][ T6512] get_tree_bdev+0x358/0x544 [ 237.352319][ T6512] gfs2_get_tree+0x54/0x1b4 [ 237.353158][ T6512] vfs_get_tree+0x90/0x274 [ 237.353827][ T6512] do_new_mount+0x228/0x810 [ 237.354536][ T6512] path_mount+0x5bc/0x1008 [ 237.355220][ T6512] __arm64_sys_mount+0x514/0x5f0 [ 237.355991][ T6512] invoke_syscall+0x98/0x2b0 [ 237.356685][ T6512] el0_svc_common+0x138/0x258 [ 237.357454][ T6512] do_el0_svc+0x58/0x13c [ 237.358128][ T6512] el0_svc+0x78/0x1d0 [ 237.358785][ T6512] el0t_64_sync_handler+0xcc/0xe4 [ 237.359572][ T6512] el0t_64_sync+0x1a0/0x1a4 [ 237.361671][ T6512] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.363550][ T6512] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.579861][ T6514] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.581208][ T6514] CPU: 0 PID: 6514 Comm: syz.1.698 Not tainted syzkaller #0 [ 237.582264][ T6514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 237.583728][ T6514] Call trace: [ 237.584210][ T6514] dump_backtrace+0x0/0x458 [ 237.584868][ T6514] show_stack+0x2c/0x3c [ 237.585524][ T6514] __dump_stack+0x30/0x40 [ 237.586180][ T6514] dump_stack_lvl+0xf4/0x15c [ 237.586946][ T6514] dump_stack+0x1c/0x5c [ 237.587637][ T6514] sysfs_create_dir_ns+0x244/0x264 [ 237.588422][ T6514] kobject_add_internal+0x5ac/0xc3c [ 237.589292][ T6514] kobject_init_and_add+0x124/0x190 [ 237.590144][ T6514] gfs2_sys_fs_add+0x200/0x41c [ 237.590878][ T6514] gfs2_fill_super+0xddc/0x1a18 [ 237.591674][ T6514] get_tree_bdev+0x358/0x544 [ 237.592412][ T6514] gfs2_get_tree+0x54/0x1b4 [ 237.593126][ T6514] vfs_get_tree+0x90/0x274 [ 237.593847][ T6514] do_new_mount+0x228/0x810 [ 237.594569][ T6514] path_mount+0x5bc/0x1008 [ 237.595288][ T6514] __arm64_sys_mount+0x514/0x5f0 [ 237.596189][ T6514] invoke_syscall+0x98/0x2b0 [ 237.596929][ T6514] el0_svc_common+0x138/0x258 [ 237.597639][ T6514] do_el0_svc+0x58/0x13c [ 237.598277][ T6514] el0_svc+0x78/0x1d0 [ 237.598936][ T6514] el0t_64_sync_handler+0xcc/0xe4 [ 237.599719][ T6514] el0t_64_sync+0x1a0/0x1a4 [ 237.602221][ T6514] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.604170][ T6514] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.814093][ T6516] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.815299][ T6516] CPU: 0 PID: 6516 Comm: syz.1.699 Not tainted syzkaller #0 [ 237.816461][ T6516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 237.818029][ T6516] Call trace: [ 237.818603][ T6516] dump_backtrace+0x0/0x458 [ 237.819370][ T6516] show_stack+0x2c/0x3c [ 237.820065][ T6516] __dump_stack+0x30/0x40 [ 237.820829][ T6516] dump_stack_lvl+0xf4/0x15c [ 237.821581][ T6516] dump_stack+0x1c/0x5c [ 237.822308][ T6516] sysfs_create_dir_ns+0x244/0x264 [ 237.823158][ T6516] kobject_add_internal+0x5ac/0xc3c [ 237.823962][ T6516] kobject_init_and_add+0x124/0x190 [ 237.824840][ T6516] gfs2_sys_fs_add+0x200/0x41c [ 237.825597][ T6516] gfs2_fill_super+0xddc/0x1a18 [ 237.826406][ T6516] get_tree_bdev+0x358/0x544 [ 237.827124][ T6516] gfs2_get_tree+0x54/0x1b4 [ 237.827827][ T6516] vfs_get_tree+0x90/0x274 [ 237.828539][ T6516] do_new_mount+0x228/0x810 [ 237.829252][ T6516] path_mount+0x5bc/0x1008 [ 237.829912][ T6516] __arm64_sys_mount+0x514/0x5f0 [ 237.830707][ T6516] invoke_syscall+0x98/0x2b0 [ 237.831485][ T6516] el0_svc_common+0x138/0x258 [ 237.832189][ T6516] do_el0_svc+0x58/0x13c [ 237.832912][ T6516] el0_svc+0x78/0x1d0 [ 237.833603][ T6516] el0t_64_sync_handler+0xcc/0xe4 [ 237.834492][ T6516] el0t_64_sync+0x1a0/0x1a4 [ 237.836661][ T6516] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.838736][ T6516] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.977368][ T6518] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.978748][ T6518] CPU: 1 PID: 6518 Comm: syz.1.700 Not tainted syzkaller #0 [ 237.979823][ T6518] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 237.981492][ T6518] Call trace: [ 237.982018][ T6518] dump_backtrace+0x0/0x458 [ 237.982699][ T6518] show_stack+0x2c/0x3c [ 237.983362][ T6518] __dump_stack+0x30/0x40 [ 237.984066][ T6518] dump_stack_lvl+0xf4/0x15c [ 237.984802][ T6518] dump_stack+0x1c/0x5c [ 237.985442][ T6518] sysfs_create_dir_ns+0x244/0x264 [ 237.986303][ T6518] kobject_add_internal+0x5ac/0xc3c [ 237.987158][ T6518] kobject_init_and_add+0x124/0x190 [ 237.988036][ T6518] gfs2_sys_fs_add+0x200/0x41c [ 237.988899][ T6518] gfs2_fill_super+0xddc/0x1a18 [ 237.989675][ T6518] get_tree_bdev+0x358/0x544 [ 237.990416][ T6518] gfs2_get_tree+0x54/0x1b4 [ 237.991105][ T6518] vfs_get_tree+0x90/0x274 [ 237.991801][ T6518] do_new_mount+0x228/0x810 [ 237.992521][ T6518] path_mount+0x5bc/0x1008 [ 237.993271][ T6518] __arm64_sys_mount+0x514/0x5f0 [ 237.994115][ T6518] invoke_syscall+0x98/0x2b0 [ 237.994805][ T6518] el0_svc_common+0x138/0x258 [ 237.995616][ T6518] do_el0_svc+0x58/0x13c [ 237.996328][ T6518] el0_svc+0x78/0x1d0 [ 237.996974][ T6518] el0t_64_sync_handler+0xcc/0xe4 [ 237.997824][ T6518] el0t_64_sync+0x1a0/0x1a4 [ 238.000217][ T6518] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.002205][ T6518] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:58 executed programs: 687 [ 238.136855][ T6520] set_capacity_and_notify: 14 callbacks suppressed [ 238.136865][ T6520] loop1: detected capacity change from 0 to 32768 [ 238.169667][ T6520] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 238.174546][ T6520] CPU: 1 PID: 6520 Comm: syz.1.701 Not tainted syzkaller #0 [ 238.175861][ T6520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.177536][ T6520] Call trace: [ 238.178047][ T6520] dump_backtrace+0x0/0x458 [ 238.178831][ T6520] show_stack+0x2c/0x3c [ 238.179531][ T6520] __dump_stack+0x30/0x40 [ 238.180218][ T6520] dump_stack_lvl+0xf4/0x15c [ 238.180966][ T6520] dump_stack+0x1c/0x5c [ 238.181591][ T6520] sysfs_create_dir_ns+0x244/0x264 [ 238.182351][ T6520] kobject_add_internal+0x5ac/0xc3c [ 238.183103][ T6520] kobject_init_and_add+0x124/0x190 [ 238.183855][ T6520] gfs2_sys_fs_add+0x200/0x41c [ 238.184551][ T6520] gfs2_fill_super+0xddc/0x1a18 [ 238.185251][ T6520] get_tree_bdev+0x358/0x544 [ 238.185892][ T6520] gfs2_get_tree+0x54/0x1b4 [ 238.186615][ T6520] vfs_get_tree+0x90/0x274 [ 238.187313][ T6520] do_new_mount+0x228/0x810 [ 238.188069][ T6520] path_mount+0x5bc/0x1008 [ 238.188740][ T6520] __arm64_sys_mount+0x514/0x5f0 [ 238.189470][ T6520] invoke_syscall+0x98/0x2b0 [ 238.190216][ T6520] el0_svc_common+0x138/0x258 [ 238.190979][ T6520] do_el0_svc+0x58/0x13c [ 238.191671][ T6520] el0_svc+0x78/0x1d0 [ 238.192299][ T6520] el0t_64_sync_handler+0xcc/0xe4 [ 238.193090][ T6520] el0t_64_sync+0x1a0/0x1a4 [ 238.194569][ T6520] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.196754][ T6520] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 238.329119][ T6522] loop1: detected capacity change from 0 to 32768 [ 238.336601][ T6522] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 238.337763][ T6522] CPU: 0 PID: 6522 Comm: syz.1.702 Not tainted syzkaller #0 [ 238.338987][ T6522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.340721][ T6522] Call trace: [ 238.341235][ T6522] dump_backtrace+0x0/0x458 [ 238.342025][ T6522] show_stack+0x2c/0x3c [ 238.342693][ T6522] __dump_stack+0x30/0x40 [ 238.343445][ T6522] dump_stack_lvl+0xf4/0x15c [ 238.344157][ T6522] dump_stack+0x1c/0x5c [ 238.344841][ T6522] sysfs_create_dir_ns+0x244/0x264 [ 238.345634][ T6522] kobject_add_internal+0x5ac/0xc3c [ 238.346443][ T6522] kobject_init_and_add+0x124/0x190 [ 238.347209][ T6522] gfs2_sys_fs_add+0x200/0x41c [ 238.347892][ T6522] gfs2_fill_super+0xddc/0x1a18 [ 238.348633][ T6522] get_tree_bdev+0x358/0x544 [ 238.349425][ T6522] gfs2_get_tree+0x54/0x1b4 [ 238.350120][ T6522] vfs_get_tree+0x90/0x274 [ 238.350863][ T6522] do_new_mount+0x228/0x810 [ 238.351575][ T6522] path_mount+0x5bc/0x1008 [ 238.352291][ T6522] __arm64_sys_mount+0x514/0x5f0 [ 238.353053][ T6522] invoke_syscall+0x98/0x2b0 [ 238.353699][ T6522] el0_svc_common+0x138/0x258 [ 238.354391][ T6522] do_el0_svc+0x58/0x13c [ 238.354979][ T6522] el0_svc+0x78/0x1d0 [ 238.355560][ T6522] el0t_64_sync_handler+0xcc/0xe4 [ 238.356360][ T6522] el0t_64_sync+0x1a0/0x1a4 [ 238.358556][ T6522] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.360459][ T6522] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 238.492769][ T6524] loop1: detected capacity change from 0 to 32768 [ 238.532985][ T6524] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 238.534285][ T6524] CPU: 1 PID: 6524 Comm: syz.1.703 Not tainted syzkaller #0 [ 238.535467][ T6524] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.537254][ T6524] Call trace: [ 238.537761][ T6524] dump_backtrace+0x0/0x458 [ 238.538526][ T6524] show_stack+0x2c/0x3c [ 238.539243][ T6524] __dump_stack+0x30/0x40 [ 238.539917][ T6524] dump_stack_lvl+0xf4/0x15c [ 238.540638][ T6524] dump_stack+0x1c/0x5c [ 238.541337][ T6524] sysfs_create_dir_ns+0x244/0x264 [ 238.542181][ T6524] kobject_add_internal+0x5ac/0xc3c [ 238.543016][ T6524] kobject_init_and_add+0x124/0x190 [ 238.543896][ T6524] gfs2_sys_fs_add+0x200/0x41c [ 238.544642][ T6524] gfs2_fill_super+0xddc/0x1a18 [ 238.545369][ T6524] get_tree_bdev+0x358/0x544 [ 238.546074][ T6524] gfs2_get_tree+0x54/0x1b4 [ 238.546839][ T6524] vfs_get_tree+0x90/0x274 [ 238.547598][ T6524] do_new_mount+0x228/0x810 [ 238.548297][ T6524] path_mount+0x5bc/0x1008 [ 238.548975][ T6524] __arm64_sys_mount+0x514/0x5f0 [ 238.549745][ T6524] invoke_syscall+0x98/0x2b0 [ 238.550496][ T6524] el0_svc_common+0x138/0x258 [ 238.551229][ T6524] do_el0_svc+0x58/0x13c [ 238.551915][ T6524] el0_svc+0x78/0x1d0 [ 238.552541][ T6524] el0t_64_sync_handler+0xcc/0xe4 [ 238.553336][ T6524] el0t_64_sync+0x1a0/0x1a4 [ 238.554173][ T6524] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.556335][ T6524] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 238.688021][ T6526] loop1: detected capacity change from 0 to 32768 [ 238.695218][ T6526] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 238.696404][ T6526] CPU: 0 PID: 6526 Comm: syz.1.704 Not tainted syzkaller #0 [ 238.697620][ T6526] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.699232][ T6526] Call trace: [ 238.699747][ T6526] dump_backtrace+0x0/0x458 [ 238.700564][ T6526] show_stack+0x2c/0x3c [ 238.701216][ T6526] __dump_stack+0x30/0x40 [ 238.701948][ T6526] dump_stack_lvl+0xf4/0x15c [ 238.702664][ T6526] dump_stack+0x1c/0x5c [ 238.703329][ T6526] sysfs_create_dir_ns+0x244/0x264 [ 238.704210][ T6526] kobject_add_internal+0x5ac/0xc3c [ 238.705048][ T6526] kobject_init_and_add+0x124/0x190 [ 238.705857][ T6526] gfs2_sys_fs_add+0x200/0x41c [ 238.706666][ T6526] gfs2_fill_super+0xddc/0x1a18 [ 238.707493][ T6526] get_tree_bdev+0x358/0x544 [ 238.708198][ T6526] gfs2_get_tree+0x54/0x1b4 [ 238.708912][ T6526] vfs_get_tree+0x90/0x274 [ 238.709651][ T6526] do_new_mount+0x228/0x810 [ 238.710376][ T6526] path_mount+0x5bc/0x1008 [ 238.711134][ T6526] __arm64_sys_mount+0x514/0x5f0 [ 238.712005][ T6526] invoke_syscall+0x98/0x2b0 [ 238.712795][ T6526] el0_svc_common+0x138/0x258 [ 238.713617][ T6526] do_el0_svc+0x58/0x13c [ 238.714380][ T6526] el0_svc+0x78/0x1d0 [ 238.715083][ T6526] el0t_64_sync_handler+0xcc/0xe4 [ 238.715908][ T6526] el0t_64_sync+0x1a0/0x1a4 [ 238.718472][ T6526] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.720506][ T6526] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 238.855059][ T6528] loop1: detected capacity change from 0 to 32768 [ 238.864164][ T6528] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 238.865470][ T6528] CPU: 1 PID: 6528 Comm: syz.1.705 Not tainted syzkaller #0 [ 238.866592][ T6528] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.868160][ T6528] Call trace: [ 238.868728][ T6528] dump_backtrace+0x0/0x458 [ 238.869462][ T6528] show_stack+0x2c/0x3c [ 238.870181][ T6528] __dump_stack+0x30/0x40 [ 238.870883][ T6528] dump_stack_lvl+0xf4/0x15c [ 238.871640][ T6528] dump_stack+0x1c/0x5c [ 238.872280][ T6528] sysfs_create_dir_ns+0x244/0x264 [ 238.873079][ T6528] kobject_add_internal+0x5ac/0xc3c [ 238.873987][ T6528] kobject_init_and_add+0x124/0x190 [ 238.874883][ T6528] gfs2_sys_fs_add+0x200/0x41c [ 238.875664][ T6528] gfs2_fill_super+0xddc/0x1a18 [ 238.876488][ T6528] get_tree_bdev+0x358/0x544 [ 238.877214][ T6528] gfs2_get_tree+0x54/0x1b4 [ 238.877885][ T6528] vfs_get_tree+0x90/0x274 [ 238.878533][ T6528] do_new_mount+0x228/0x810 [ 238.879221][ T6528] path_mount+0x5bc/0x1008 [ 238.879867][ T6528] __arm64_sys_mount+0x514/0x5f0 [ 238.880564][ T6528] invoke_syscall+0x98/0x2b0 [ 238.881203][ T6528] el0_svc_common+0x138/0x258 [ 238.881856][ T6528] do_el0_svc+0x58/0x13c [ 238.882454][ T6528] el0_svc+0x78/0x1d0 [ 238.883035][ T6528] el0t_64_sync_handler+0xcc/0xe4 [ 238.883780][ T6528] el0t_64_sync+0x1a0/0x1a4 [ 238.885159][ T6528] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.887068][ T6528] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 239.023579][ T6530] loop1: detected capacity change from 0 to 32768 [ 239.099259][ T6530] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 239.100541][ T6530] CPU: 1 PID: 6530 Comm: syz.1.706 Not tainted syzkaller #0 [ 239.101547][ T6530] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 239.103217][ T6530] Call trace: [ 239.103745][ T6530] dump_backtrace+0x0/0x458 [ 239.104482][ T6530] show_stack+0x2c/0x3c [ 239.105169][ T6530] __dump_stack+0x30/0x40 [ 239.105877][ T6530] dump_stack_lvl+0xf4/0x15c [ 239.106668][ T6530] dump_stack+0x1c/0x5c [ 239.107384][ T6530] sysfs_create_dir_ns+0x244/0x264 [ 239.108227][ T6530] kobject_add_internal+0x5ac/0xc3c [ 239.109095][ T6530] kobject_init_and_add+0x124/0x190 [ 239.109920][ T6530] gfs2_sys_fs_add+0x200/0x41c [ 239.110711][ T6530] gfs2_fill_super+0xddc/0x1a18 [ 239.111477][ T6530] get_tree_bdev+0x358/0x544 [ 239.112207][ T6530] gfs2_get_tree+0x54/0x1b4 [ 239.112838][ T6530] vfs_get_tree+0x90/0x274 [ 239.113591][ T6530] do_new_mount+0x228/0x810 [ 239.114280][ T6530] path_mount+0x5bc/0x1008 [ 239.115011][ T6530] __arm64_sys_mount+0x514/0x5f0 [ 239.115827][ T6530] invoke_syscall+0x98/0x2b0 [ 239.116639][ T6530] el0_svc_common+0x138/0x258 [ 239.117442][ T6530] do_el0_svc+0x58/0x13c [ 239.118170][ T6530] el0_svc+0x78/0x1d0 [ 239.118833][ T6530] el0t_64_sync_handler+0xcc/0xe4 [ 239.119695][ T6530] el0t_64_sync+0x1a0/0x1a4 [ 239.121232][ T6530] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 239.123639][ T6530] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 239.254884][ T6532] loop1: detected capacity change from 0 to 32768 [ 239.262616][ T6532] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 239.263749][ T6532] CPU: 0 PID: 6532 Comm: syz.1.707 Not tainted syzkaller #0 [ 239.264904][ T6532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 239.266412][ T6532] Call trace: [ 239.266946][ T6532] dump_backtrace+0x0/0x458 [ 239.267726][ T6532] show_stack+0x2c/0x3c [ 239.268379][ T6532] __dump_stack+0x30/0x40 [ 239.269057][ T6532] dump_stack_lvl+0xf4/0x15c [ 239.269806][ T6532] dump_stack+0x1c/0x5c [ 239.270521][ T6532] sysfs_create_dir_ns+0x244/0x264 [ 239.271385][ T6532] kobject_add_internal+0x5ac/0xc3c [ 239.272224][ T6532] kobject_init_and_add+0x124/0x190 [ 239.273045][ T6532] gfs2_sys_fs_add+0x200/0x41c [ 239.273855][ T6532] gfs2_fill_super+0xddc/0x1a18 [ 239.274648][ T6532] get_tree_bdev+0x358/0x544 [ 239.275365][ T6532] gfs2_get_tree+0x54/0x1b4 [ 239.276040][ T6532] vfs_get_tree+0x90/0x274 [ 239.276713][ T6532] do_new_mount+0x228/0x810 [ 239.277308][ T6532] path_mount+0x5bc/0x1008 [ 239.277962][ T6532] __arm64_sys_mount+0x514/0x5f0 [ 239.278775][ T6532] invoke_syscall+0x98/0x2b0 [ 239.279587][ T6532] el0_svc_common+0x138/0x258 [ 239.280346][ T6532] do_el0_svc+0x58/0x13c [ 239.281066][ T6532] el0_svc+0x78/0x1d0 [ 239.281743][ T6532] el0t_64_sync_handler+0xcc/0xe4 [ 239.282496][ T6532] el0t_64_sync+0x1a0/0x1a4 [ 239.283352][ T6532] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 239.286434][ T6532] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 239.417386][ T6534] loop1: detected capacity change from 0 to 32768 [ 239.469959][ T6534] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 239.471162][ T6534] CPU: 1 PID: 6534 Comm: syz.1.708 Not tainted syzkaller #0 [ 239.472330][ T6534] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 239.473854][ T6534] Call trace: [ 239.474362][ T6534] dump_backtrace+0x0/0x458 [ 239.475108][ T6534] show_stack+0x2c/0x3c [ 239.475780][ T6534] __dump_stack+0x30/0x40 [ 239.476459][ T6534] dump_stack_lvl+0xf4/0x15c [ 239.477176][ T6534] dump_stack+0x1c/0x5c [ 239.477776][ T6534] sysfs_create_dir_ns+0x244/0x264 [ 239.478545][ T6534] kobject_add_internal+0x5ac/0xc3c [ 239.479351][ T6534] kobject_init_and_add+0x124/0x190 [ 239.480153][ T6534] gfs2_sys_fs_add+0x200/0x41c [ 239.480930][ T6534] gfs2_fill_super+0xddc/0x1a18 [ 239.481630][ T6534] get_tree_bdev+0x358/0x544 [ 239.482286][ T6534] gfs2_get_tree+0x54/0x1b4 [ 239.482933][ T6534] vfs_get_tree+0x90/0x274 [ 239.483590][ T6534] do_new_mount+0x228/0x810 [ 239.484256][ T6534] path_mount+0x5bc/0x1008 [ 239.484920][ T6534] __arm64_sys_mount+0x514/0x5f0 [ 239.485684][ T6534] invoke_syscall+0x98/0x2b0 [ 239.486437][ T6534] el0_svc_common+0x138/0x258 [ 239.487171][ T6534] do_el0_svc+0x58/0x13c [ 239.487808][ T6534] el0_svc+0x78/0x1d0 [ 239.488405][ T6534] el0t_64_sync_handler+0xcc/0xe4 [ 239.489135][ T6534] el0t_64_sync+0x1a0/0x1a4 [ 239.494310][ T6534] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 239.496360][ T6534] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 239.628738][ T6536] loop1: detected capacity change from 0 to 32768 [ 239.674304][ T6536] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 239.675450][ T6536] CPU: 0 PID: 6536 Comm: syz.1.709 Not tainted syzkaller #0 [ 239.676583][ T6536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 239.678064][ T6536] Call trace: [ 239.678534][ T6536] dump_backtrace+0x0/0x458 [ 239.679184][ T6536] show_stack+0x2c/0x3c [ 239.679870][ T6536] __dump_stack+0x30/0x40 [ 239.680607][ T6536] dump_stack_lvl+0xf4/0x15c [ 239.681337][ T6536] dump_stack+0x1c/0x5c [ 239.682010][ T6536] sysfs_create_dir_ns+0x244/0x264 [ 239.682792][ T6536] kobject_add_internal+0x5ac/0xc3c [ 239.683614][ T6536] kobject_init_and_add+0x124/0x190 [ 239.684526][ T6536] gfs2_sys_fs_add+0x200/0x41c [ 239.685320][ T6536] gfs2_fill_super+0xddc/0x1a18 [ 239.686071][ T6536] get_tree_bdev+0x358/0x544 [ 239.686855][ T6536] gfs2_get_tree+0x54/0x1b4 [ 239.687569][ T6536] vfs_get_tree+0x90/0x274 [ 239.688306][ T6536] do_new_mount+0x228/0x810 [ 239.689038][ T6536] path_mount+0x5bc/0x1008 [ 239.689688][ T6536] __arm64_sys_mount+0x514/0x5f0 [ 239.690560][ T6536] invoke_syscall+0x98/0x2b0 [ 239.691311][ T6536] el0_svc_common+0x138/0x258 [ 239.692086][ T6536] do_el0_svc+0x58/0x13c [ 239.692840][ T6536] el0_svc+0x78/0x1d0 [ 239.693492][ T6536] el0t_64_sync_handler+0xcc/0xe4 [ 239.694296][ T6536] el0t_64_sync+0x1a0/0x1a4 [ 239.695193][ T6536] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 239.697271][ T6536] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 239.848335][ T27] INFO: task syz-executor:4935 blocked for more than 143 seconds. [ 239.849870][ T27] Not tainted syzkaller #0 [ 239.850667][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 239.852094][ T27] task:syz-executor state:D stack: 0 pid: 4935 ppid: 1 flags:0x00000009 [ 239.853631][ T27] Call trace: [ 239.854181][ T27] __switch_to+0x2f4/0x540 [ 239.854925][ T27] __schedule+0xdfc/0x1bc4 [ 239.855658][ T27] schedule+0x11c/0x1c8 [ 239.856321][ T27] schedule_timeout+0x194/0x2f4 [ 239.857088][ T27] gfs2_gl_hash_clear+0x174/0x2cc [ 239.857817][ T27] gfs2_put_super+0x614/0x6b4 [ 239.861744][ T27] generic_shutdown_super+0x130/0x2f0 [ 239.862596][ T27] kill_block_super+0x70/0xdc [ 239.863363][ T27] gfs2_kill_sb+0xc0/0xd4 [ 239.864131][ T27] deactivate_locked_super+0xb8/0x134 [ 239.865052][ T27] deactivate_super+0xf0/0x110 [ 239.865844][ T27] cleanup_mnt+0x3b8/0x46c [ 239.866552][ T27] __cleanup_mnt+0x20/0x30 [ 239.867284][ T27] task_work_run+0x12c/0x1d8 [ 239.867986][ T27] do_notify_resume+0x2450/0x309c [ 239.868720][ T27] el0_svc+0xf0/0x1d0 [ 239.869316][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 239.870075][ T27] el0t_64_sync+0x1a0/0x1a4 [ 239.870754][ T27] [ 239.870754][ T27] Showing all locks held in the system: [ 239.871897][ T27] 1 lock held by khungtaskd/27: [ 239.872596][ T27] #0: ffff800014461360 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 239.874023][ T27] 2 locks held by getty/3802: [ 239.874714][ T27] #0: ffff0000d3f1e098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 239.876317][ T27] #1: ffff80001b9162e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 239.877972][ T27] 1 lock held by syz-executor/4935: [ 239.880113][ T27] #0: ffff0000d96300e0 (&type->s_umount_key#52){++++}-{3:3}, at: deactivate_super+0xe8/0x110 [ 239.881774][ T27] [ 239.882150][ T27] ============================================= [ 239.882150][ T27] [ 239.883575][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 239.884600][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 239.885661][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 239.887290][ T27] Call trace: [ 239.887826][ T27] dump_backtrace+0x0/0x458 [ 239.888520][ T27] show_stack+0x2c/0x3c [ 239.889152][ T27] __dump_stack+0x30/0x40 [ 239.889857][ T27] dump_stack_lvl+0xf4/0x15c [ 239.890539][ T27] dump_stack+0x1c/0x5c [ 239.891192][ T27] panic+0x2fc/0x860 [ 239.891800][ T27] hung_task_panic+0x0/0x2c [ 239.892402][ T27] kthread+0x374/0x454 [ 239.893035][ T27] ret_from_fork+0x10/0x20 [ 239.893747][ T27] SMP: stopping secondary CPUs [ 239.894437][ T27] Kernel Offset: disabled [ 239.895135][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 239.895965][ T27] Memory Limit: none [ 240.233365][ T27] Rebooting in 86400 seconds..