] gfs2_get_tree+0x54/0x1b4 [ 207.256744][ T6048] vfs_get_tree+0x90/0x274 [ 207.257518][ T6048] do_new_mount+0x228/0x810 [ 207.258253][ T6048] path_mount+0x5bc/0x1008 [ 207.258972][ T6048] __arm64_sys_mount+0x514/0x5f0 [ 207.259856][ T6048] invoke_syscall+0x98/0x2b0 [ 207.260591][ T6048] el0_svc_common+0x138/0x258 [ 207.261327][ T6048] do_el0_svc+0x58/0x13c [ 207.262070][ T6048] el0_svc+0x78/0x1d0 [ 207.262819][ T6048] el0t_64_sync_handler+0xcc/0xe4 [ 207.263640][ T6048] el0t_64_sync+0x1a0/0x1a4 [ 207.264589][ T6048] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.266663][ T6048] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.463052][ T6050] loop1: detected capacity change from 0 to 32768 [ 207.516642][ T6050] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.517914][ T6050] CPU: 1 PID: 6050 Comm: syz.1.553 Not tainted syzkaller #0 [ 207.519082][ T6050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 207.520611][ T6050] Call trace: [ 207.521114][ T6050] dump_backtrace+0x0/0x458 [ 207.521976][ T6050] show_stack+0x2c/0x3c [ 207.522659][ T6050] __dump_stack+0x30/0x40 [ 207.523499][ T6050] dump_stack_lvl+0xf4/0x15c [ 207.524282][ T6050] dump_stack+0x1c/0x5c [ 207.524955][ T6050] sysfs_create_dir_ns+0x244/0x264 [ 207.525807][ T6050] kobject_add_internal+0x5ac/0xc3c [ 207.526659][ T6050] kobject_init_and_add+0x124/0x190 [ 207.527532][ T6050] gfs2_sys_fs_add+0x200/0x41c [ 207.528343][ T6050] gfs2_fill_super+0xddc/0x1a18 [ 207.529084][ T6050] get_tree_bdev+0x358/0x544 [ 207.529813][ T6050] gfs2_get_tree+0x54/0x1b4 [ 207.530583][ T6050] vfs_get_tree+0x90/0x274 [ 207.531344][ T6050] do_new_mount+0x228/0x810 [ 207.532165][ T6050] path_mount+0x5bc/0x1008 [ 207.532934][ T6050] __arm64_sys_mount+0x514/0x5f0 [ 207.533775][ T6050] invoke_syscall+0x98/0x2b0 [ 207.534556][ T6050] el0_svc_common+0x138/0x258 [ 207.535369][ T6050] do_el0_svc+0x58/0x13c [ 207.536094][ T6050] el0_svc+0x78/0x1d0 [ 207.536673][ T6050] el0t_64_sync_handler+0xcc/0xe4 [ 207.537481][ T6050] el0t_64_sync+0x1a0/0x1a4 [ 207.538365][ T6050] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.540533][ T6050] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.681659][ T6052] loop1: detected capacity change from 0 to 32768 [ 207.731577][ T6052] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.732911][ T6052] CPU: 1 PID: 6052 Comm: syz.1.554 Not tainted syzkaller #0 [ 207.734202][ T6052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 207.735867][ T6052] Call trace: [ 207.736406][ T6052] dump_backtrace+0x0/0x458 [ 207.737137][ T6052] show_stack+0x2c/0x3c [ 207.737861][ T6052] __dump_stack+0x30/0x40 [ 207.738614][ T6052] dump_stack_lvl+0xf4/0x15c [ 207.739456][ T6052] dump_stack+0x1c/0x5c [ 207.740193][ T6052] sysfs_create_dir_ns+0x244/0x264 [ 207.741022][ T6052] kobject_add_internal+0x5ac/0xc3c [ 207.741880][ T6052] kobject_init_and_add+0x124/0x190 [ 207.742740][ T6052] gfs2_sys_fs_add+0x200/0x41c [ 207.743530][ T6052] gfs2_fill_super+0xddc/0x1a18 [ 207.744384][ T6052] get_tree_bdev+0x358/0x544 [ 207.745131][ T6052] gfs2_get_tree+0x54/0x1b4 [ 207.745839][ T6052] vfs_get_tree+0x90/0x274 [ 207.746508][ T6052] do_new_mount+0x228/0x810 [ 207.747193][ T6052] path_mount+0x5bc/0x1008 [ 207.747982][ T6052] __arm64_sys_mount+0x514/0x5f0 [ 207.748790][ T6052] invoke_syscall+0x98/0x2b0 [ 207.749565][ T6052] el0_svc_common+0x138/0x258 [ 207.750370][ T6052] do_el0_svc+0x58/0x13c [ 207.751155][ T6052] el0_svc+0x78/0x1d0 [ 207.751854][ T6052] el0t_64_sync_handler+0xcc/0xe4 [ 207.752713][ T6052] el0t_64_sync+0x1a0/0x1a4 [ 207.753676][ T6052] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.755707][ T6052] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.897636][ T6054] loop1: detected capacity change from 0 to 32768 [ 207.952231][ T6054] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.953408][ T6054] CPU: 0 PID: 6054 Comm: syz.1.555 Not tainted syzkaller #0 [ 207.954633][ T6054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 207.956242][ T6054] Call trace: [ 207.956744][ T6054] dump_backtrace+0x0/0x458 [ 207.957426][ T6054] show_stack+0x2c/0x3c [ 207.958079][ T6054] __dump_stack+0x30/0x40 [ 207.958797][ T6054] dump_stack_lvl+0xf4/0x15c [ 207.959527][ T6054] dump_stack+0x1c/0x5c [ 207.960175][ T6054] sysfs_create_dir_ns+0x244/0x264 [ 207.961003][ T6054] kobject_add_internal+0x5ac/0xc3c [ 207.961894][ T6054] kobject_init_and_add+0x124/0x190 [ 207.962742][ T6054] gfs2_sys_fs_add+0x200/0x41c [ 207.963522][ T6054] gfs2_fill_super+0xddc/0x1a18 [ 207.964346][ T6054] get_tree_bdev+0x358/0x544 [ 207.965097][ T6054] gfs2_get_tree+0x54/0x1b4 [ 207.965783][ T6054] vfs_get_tree+0x90/0x274 [ 207.966479][ T6054] do_new_mount+0x228/0x810 [ 207.967311][ T6054] path_mount+0x5bc/0x1008 [ 207.968043][ T6054] __arm64_sys_mount+0x514/0x5f0 [ 207.968821][ T6054] invoke_syscall+0x98/0x2b0 [ 207.969567][ T6054] el0_svc_common+0x138/0x258 [ 207.970316][ T6054] do_el0_svc+0x58/0x13c [ 207.971037][ T6054] el0_svc+0x78/0x1d0 [ 207.971639][ T6054] el0t_64_sync_handler+0xcc/0xe4 [ 207.972383][ T6054] el0t_64_sync+0x1a0/0x1a4 [ 207.974538][ T6054] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.976698][ T6054] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.232044][ T6056] loop1: detected capacity change from 0 to 32768 [ 208.274627][ T6056] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.276008][ T6056] CPU: 0 PID: 6056 Comm: syz.1.556 Not tainted syzkaller #0 [ 208.277193][ T6056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 208.278758][ T6056] Call trace: [ 208.279263][ T6056] dump_backtrace+0x0/0x458 [ 208.279988][ T6056] show_stack+0x2c/0x3c [ 208.280611][ T6056] __dump_stack+0x30/0x40 [ 208.281260][ T6056] dump_stack_lvl+0xf4/0x15c [ 208.282020][ T6056] dump_stack+0x1c/0x5c [ 208.282694][ T6056] sysfs_create_dir_ns+0x244/0x264 [ 208.283569][ T6056] kobject_add_internal+0x5ac/0xc3c [ 208.284415][ T6056] kobject_init_and_add+0x124/0x190 [ 208.285261][ T6056] gfs2_sys_fs_add+0x200/0x41c [ 208.286006][ T6056] gfs2_fill_super+0xddc/0x1a18 [ 208.286787][ T6056] get_tree_bdev+0x358/0x544 [ 208.287529][ T6056] gfs2_get_tree+0x54/0x1b4 [ 208.288258][ T6056] vfs_get_tree+0x90/0x274 [ 208.288972][ T6056] do_new_mount+0x228/0x810 [ 208.289682][ T6056] path_mount+0x5bc/0x1008 [ 208.290382][ T6056] __arm64_sys_mount+0x514/0x5f0 [ 208.291128][ T6056] invoke_syscall+0x98/0x2b0 [ 208.291850][ T6056] el0_svc_common+0x138/0x258 [ 208.292606][ T6056] do_el0_svc+0x58/0x13c [ 208.293325][ T6056] el0_svc+0x78/0x1d0 [ 208.293997][ T6056] el0t_64_sync_handler+0xcc/0xe4 [ 208.294814][ T6056] el0t_64_sync+0x1a0/0x1a4 [ 208.297347][ T6056] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.299366][ T6056] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.437320][ T6058] loop1: detected capacity change from 0 to 32768 [ 208.476197][ T6058] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.477431][ T6058] CPU: 0 PID: 6058 Comm: syz.1.557 Not tainted syzkaller #0 [ 208.478611][ T6058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 208.480331][ T6058] Call trace: [ 208.480879][ T6058] dump_backtrace+0x0/0x458 [ 208.481591][ T6058] show_stack+0x2c/0x3c [ 208.482244][ T6058] __dump_stack+0x30/0x40 [ 208.482983][ T6058] dump_stack_lvl+0xf4/0x15c [ 208.483772][ T6058] dump_stack+0x1c/0x5c [ 208.484453][ T6058] sysfs_create_dir_ns+0x244/0x264 [ 208.485264][ T6058] kobject_add_internal+0x5ac/0xc3c [ 208.486075][ T6058] kobject_init_and_add+0x124/0x190 [ 208.486883][ T6058] gfs2_sys_fs_add+0x200/0x41c [ 208.487649][ T6058] gfs2_fill_super+0xddc/0x1a18 [ 208.488447][ T6058] get_tree_bdev+0x358/0x544 [ 208.489167][ T6058] gfs2_get_tree+0x54/0x1b4 [ 208.489868][ T6058] vfs_get_tree+0x90/0x274 [ 208.490569][ T6058] do_new_mount+0x228/0x810 [ 208.491286][ T6058] path_mount+0x5bc/0x1008 [ 208.492022][ T6058] __arm64_sys_mount+0x514/0x5f0 [ 208.492821][ T6058] invoke_syscall+0x98/0x2b0 [ 208.493580][ T6058] el0_svc_common+0x138/0x258 [ 208.494361][ T6058] do_el0_svc+0x58/0x13c [ 208.495071][ T6058] el0_svc+0x78/0x1d0 [ 208.495719][ T6058] el0t_64_sync_handler+0xcc/0xe4 [ 208.496553][ T6058] el0t_64_sync+0x1a0/0x1a4 [ 208.499029][ T6058] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.502375][ T6058] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.701746][ T6060] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.703060][ T6060] CPU: 1 PID: 6060 Comm: syz.1.558 Not tainted syzkaller #0 [ 208.704266][ T6060] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 208.706102][ T6060] Call trace: [ 208.706696][ T6060] dump_backtrace+0x0/0x458 [ 208.707440][ T6060] show_stack+0x2c/0x3c [ 208.708066][ T6060] __dump_stack+0x30/0x40 [ 208.708751][ T6060] dump_stack_lvl+0xf4/0x15c [ 208.709470][ T6060] dump_stack+0x1c/0x5c [ 208.710100][ T6060] sysfs_create_dir_ns+0x244/0x264 [ 208.710915][ T6060] kobject_add_internal+0x5ac/0xc3c [ 208.711765][ T6060] kobject_init_and_add+0x124/0x190 [ 208.712575][ T6060] gfs2_sys_fs_add+0x200/0x41c [ 208.713302][ T6060] gfs2_fill_super+0xddc/0x1a18 [ 208.714011][ T6060] get_tree_bdev+0x358/0x544 [ 208.714706][ T6060] gfs2_get_tree+0x54/0x1b4 [ 208.715368][ T6060] vfs_get_tree+0x90/0x274 [ 208.716077][ T6060] do_new_mount+0x228/0x810 [ 208.716800][ T6060] path_mount+0x5bc/0x1008 [ 208.717538][ T6060] __arm64_sys_mount+0x514/0x5f0 [ 208.718325][ T6060] invoke_syscall+0x98/0x2b0 [ 208.719021][ T6060] el0_svc_common+0x138/0x258 [ 208.719828][ T6060] do_el0_svc+0x58/0x13c [ 208.720558][ T6060] el0_svc+0x78/0x1d0 [ 208.721169][ T6060] el0t_64_sync_handler+0xcc/0xe4 [ 208.721907][ T6060] el0t_64_sync+0x1a0/0x1a4 [ 208.723137][ T6060] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.725175][ T6060] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.954440][ T6062] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.955715][ T6062] CPU: 1 PID: 6062 Comm: syz.1.559 Not tainted syzkaller #0 [ 208.956884][ T6062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 208.958549][ T6062] Call trace: [ 208.959049][ T6062] dump_backtrace+0x0/0x458 [ 208.959755][ T6062] show_stack+0x2c/0x3c [ 208.960444][ T6062] __dump_stack+0x30/0x40 [ 208.961122][ T6062] dump_stack_lvl+0xf4/0x15c [ 208.961836][ T6062] dump_stack+0x1c/0x5c [ 208.962489][ T6062] sysfs_create_dir_ns+0x244/0x264 [ 208.963441][ T6062] kobject_add_internal+0x5ac/0xc3c [ 208.964342][ T6062] kobject_init_and_add+0x124/0x190 [ 208.965254][ T6062] gfs2_sys_fs_add+0x200/0x41c [ 208.966043][ T6062] gfs2_fill_super+0xddc/0x1a18 [ 208.966863][ T6062] get_tree_bdev+0x358/0x544 [ 208.967677][ T6062] gfs2_get_tree+0x54/0x1b4 [ 208.968410][ T6062] vfs_get_tree+0x90/0x274 [ 208.969112][ T6062] do_new_mount+0x228/0x810 [ 208.969865][ T6062] path_mount+0x5bc/0x1008 [ 208.970574][ T6062] __arm64_sys_mount+0x514/0x5f0 [ 208.971411][ T6062] invoke_syscall+0x98/0x2b0 [ 208.972184][ T6062] el0_svc_common+0x138/0x258 [ 208.972912][ T6062] do_el0_svc+0x58/0x13c [ 208.973547][ T6062] el0_svc+0x78/0x1d0 [ 208.974192][ T6062] el0t_64_sync_handler+0xcc/0xe4 [ 208.975043][ T6062] el0t_64_sync+0x1a0/0x1a4 [ 208.976042][ T6062] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.978111][ T6062] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.186601][ T6064] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.187805][ T6064] CPU: 1 PID: 6064 Comm: syz.1.560 Not tainted syzkaller #0 [ 209.189045][ T6064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 209.190714][ T6064] Call trace: [ 209.191276][ T6064] dump_backtrace+0x0/0x458 [ 209.192053][ T6064] show_stack+0x2c/0x3c [ 209.192748][ T6064] __dump_stack+0x30/0x40 [ 209.193497][ T6064] dump_stack_lvl+0xf4/0x15c [ 209.194276][ T6064] dump_stack+0x1c/0x5c [ 209.194993][ T6064] sysfs_create_dir_ns+0x244/0x264 [ 209.195882][ T6064] kobject_add_internal+0x5ac/0xc3c [ 209.196779][ T6064] kobject_init_and_add+0x124/0x190 [ 209.197648][ T6064] gfs2_sys_fs_add+0x200/0x41c [ 209.198421][ T6064] gfs2_fill_super+0xddc/0x1a18 [ 209.199190][ T6064] get_tree_bdev+0x358/0x544 [ 209.199947][ T6064] gfs2_get_tree+0x54/0x1b4 [ 209.200700][ T6064] vfs_get_tree+0x90/0x274 [ 209.201454][ T6064] do_new_mount+0x228/0x810 [ 209.202207][ T6064] path_mount+0x5bc/0x1008 [ 209.202934][ T6064] __arm64_sys_mount+0x514/0x5f0 [ 209.203768][ T6064] invoke_syscall+0x98/0x2b0 [ 209.204561][ T6064] el0_svc_common+0x138/0x258 [ 209.205332][ T6064] do_el0_svc+0x58/0x13c [ 209.206073][ T6064] el0_svc+0x78/0x1d0 [ 209.206678][ T6064] el0t_64_sync_handler+0xcc/0xe4 [ 209.207544][ T6064] el0t_64_sync+0x1a0/0x1a4 [ 209.208465][ T6064] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.210699][ T6064] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.400914][ T6066] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.402370][ T6066] CPU: 0 PID: 6066 Comm: syz.1.561 Not tainted syzkaller #0 [ 209.403523][ T6066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 209.405061][ T6066] Call trace: [ 209.405551][ T6066] dump_backtrace+0x0/0x458 [ 209.406195][ T6066] show_stack+0x2c/0x3c [ 209.406850][ T6066] __dump_stack+0x30/0x40 [ 209.407608][ T6066] dump_stack_lvl+0xf4/0x15c [ 209.408311][ T6066] dump_stack+0x1c/0x5c [ 209.408986][ T6066] sysfs_create_dir_ns+0x244/0x264 [ 209.409801][ T6066] kobject_add_internal+0x5ac/0xc3c [ 209.410671][ T6066] kobject_init_and_add+0x124/0x190 [ 209.411544][ T6066] gfs2_sys_fs_add+0x200/0x41c [ 209.412309][ T6066] gfs2_fill_super+0xddc/0x1a18 [ 209.413108][ T6066] get_tree_bdev+0x358/0x544 [ 209.413893][ T6066] gfs2_get_tree+0x54/0x1b4 [ 209.414700][ T6066] vfs_get_tree+0x90/0x274 [ 209.415471][ T6066] do_new_mount+0x228/0x810 [ 209.416294][ T6066] path_mount+0x5bc/0x1008 [ 209.417067][ T6066] __arm64_sys_mount+0x514/0x5f0 [ 209.417932][ T6066] invoke_syscall+0x98/0x2b0 [ 209.418723][ T6066] el0_svc_common+0x138/0x258 [ 209.419519][ T6066] do_el0_svc+0x58/0x13c [ 209.420271][ T6066] el0_svc+0x78/0x1d0 [ 209.420995][ T6066] el0t_64_sync_handler+0xcc/0xe4 [ 209.421883][ T6066] el0t_64_sync+0x1a0/0x1a4 [ 209.423679][ T6066] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.425853][ T6066] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.577369][ T6068] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.578807][ T6068] CPU: 0 PID: 6068 Comm: syz.1.562 Not tainted syzkaller #0 [ 209.579880][ T6068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 209.581434][ T6068] Call trace: [ 209.581914][ T6068] dump_backtrace+0x0/0x458 [ 209.582657][ T6068] show_stack+0x2c/0x3c [ 209.583381][ T6068] __dump_stack+0x30/0x40 [ 209.584102][ T6068] dump_stack_lvl+0xf4/0x15c [ 209.584840][ T6068] dump_stack+0x1c/0x5c [ 209.585504][ T6068] sysfs_create_dir_ns+0x244/0x264 [ 209.586315][ T6068] kobject_add_internal+0x5ac/0xc3c [ 209.587112][ T6068] kobject_init_and_add+0x124/0x190 [ 209.587943][ T6068] gfs2_sys_fs_add+0x200/0x41c [ 209.588721][ T6068] gfs2_fill_super+0xddc/0x1a18 [ 209.589527][ T6068] get_tree_bdev+0x358/0x544 [ 209.590277][ T6068] gfs2_get_tree+0x54/0x1b4 [ 209.591049][ T6068] vfs_get_tree+0x90/0x274 [ 209.591771][ T6068] do_new_mount+0x228/0x810 [ 209.592520][ T6068] path_mount+0x5bc/0x1008 [ 209.593256][ T6068] __arm64_sys_mount+0x514/0x5f0 [ 209.594077][ T6068] invoke_syscall+0x98/0x2b0 [ 209.594839][ T6068] el0_svc_common+0x138/0x258 [ 209.595607][ T6068] do_el0_svc+0x58/0x13c [ 209.596299][ T6068] el0_svc+0x78/0x1d0 [ 209.597031][ T6068] el0t_64_sync_handler+0xcc/0xe4 [ 209.597930][ T6068] el0t_64_sync+0x1a0/0x1a4 [ 209.600344][ T6068] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.602297][ T6068] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.780926][ T6070] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.782180][ T6070] CPU: 1 PID: 6070 Comm: syz.1.563 Not tainted syzkaller #0 [ 209.783305][ T6070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 209.785029][ T6070] Call trace: [ 209.785586][ T6070] dump_backtrace+0x0/0x458 [ 209.786305][ T6070] show_stack+0x2c/0x3c [ 209.786996][ T6070] __dump_stack+0x30/0x40 [ 209.787706][ T6070] dump_stack_lvl+0xf4/0x15c [ 209.788445][ T6070] dump_stack+0x1c/0x5c [ 209.789126][ T6070] sysfs_create_dir_ns+0x244/0x264 [ 209.789932][ T6070] kobject_add_internal+0x5ac/0xc3c [ 209.790787][ T6070] kobject_init_and_add+0x124/0x190 [ 209.791645][ T6070] gfs2_sys_fs_add+0x200/0x41c [ 209.792411][ T6070] gfs2_fill_super+0xddc/0x1a18 [ 209.793183][ T6070] get_tree_bdev+0x358/0x544 [ 209.793954][ T6070] gfs2_get_tree+0x54/0x1b4 [ 209.794759][ T6070] vfs_get_tree+0x90/0x274 [ 209.795508][ T6070] do_new_mount+0x228/0x810 [ 209.796303][ T6070] path_mount+0x5bc/0x1008 [ 209.797094][ T6070] __arm64_sys_mount+0x514/0x5f0 [ 209.797926][ T6070] invoke_syscall+0x98/0x2b0 [ 209.798695][ T6070] el0_svc_common+0x138/0x258 [ 209.799492][ T6070] do_el0_svc+0x58/0x13c [ 209.800282][ T6070] el0_svc+0x78/0x1d0 [ 209.800959][ T6070] el0t_64_sync_handler+0xcc/0xe4 [ 209.801788][ T6070] el0t_64_sync+0x1a0/0x1a4 [ 209.807407][ T6070] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.809317][ T6070] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.000955][ T6072] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.002222][ T6072] CPU: 1 PID: 6072 Comm: syz.1.564 Not tainted syzkaller #0 [ 210.003412][ T6072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 210.005142][ T6072] Call trace: [ 210.005647][ T6072] dump_backtrace+0x0/0x458 [ 210.006381][ T6072] show_stack+0x2c/0x3c [ 210.007043][ T6072] __dump_stack+0x30/0x40 [ 210.007729][ T6072] dump_stack_lvl+0xf4/0x15c [ 210.008528][ T6072] dump_stack+0x1c/0x5c [ 210.009201][ T6072] sysfs_create_dir_ns+0x244/0x264 [ 210.010018][ T6072] kobject_add_internal+0x5ac/0xc3c [ 210.010872][ T6072] kobject_init_and_add+0x124/0x190 [ 210.011768][ T6072] gfs2_sys_fs_add+0x200/0x41c [ 210.012628][ T6072] gfs2_fill_super+0xddc/0x1a18 [ 210.013502][ T6072] get_tree_bdev+0x358/0x544 [ 210.014300][ T6072] gfs2_get_tree+0x54/0x1b4 [ 210.015081][ T6072] vfs_get_tree+0x90/0x274 [ 210.015824][ T6072] do_new_mount+0x228/0x810 [ 210.016631][ T6072] path_mount+0x5bc/0x1008 [ 210.017285][ T6072] __arm64_sys_mount+0x514/0x5f0 [ 210.018099][ T6072] invoke_syscall+0x98/0x2b0 [ 210.018835][ T6072] el0_svc_common+0x138/0x258 [ 210.019576][ T6072] do_el0_svc+0x58/0x13c [ 210.020275][ T6072] el0_svc+0x78/0x1d0 [ 210.020898][ T6072] el0t_64_sync_handler+0xcc/0xe4 [ 210.021695][ T6072] el0t_64_sync+0x1a0/0x1a4 [ 210.022527][ T6072] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.024542][ T6072] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.170921][ T6074] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.172235][ T6074] CPU: 0 PID: 6074 Comm: syz.1.565 Not tainted syzkaller #0 [ 210.173416][ T6074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 210.175179][ T6074] Call trace: [ 210.175700][ T6074] dump_backtrace+0x0/0x458 [ 210.176492][ T6074] show_stack+0x2c/0x3c [ 210.177145][ T6074] __dump_stack+0x30/0x40 [ 210.177859][ T6074] dump_stack_lvl+0xf4/0x15c [ 210.178612][ T6074] dump_stack+0x1c/0x5c [ 210.179265][ T6074] sysfs_create_dir_ns+0x244/0x264 [ 210.180107][ T6074] kobject_add_internal+0x5ac/0xc3c [ 210.181017][ T6074] kobject_init_and_add+0x124/0x190 [ 210.181964][ T6074] gfs2_sys_fs_add+0x200/0x41c [ 210.182778][ T6074] gfs2_fill_super+0xddc/0x1a18 [ 210.183603][ T6074] get_tree_bdev+0x358/0x544 [ 210.184413][ T6074] gfs2_get_tree+0x54/0x1b4 [ 210.185149][ T6074] vfs_get_tree+0x90/0x274 [ 210.185962][ T6074] do_new_mount+0x228/0x810 [ 210.186687][ T6074] path_mount+0x5bc/0x1008 [ 210.187423][ T6074] __arm64_sys_mount+0x514/0x5f0 [ 210.188272][ T6074] invoke_syscall+0x98/0x2b0 [ 210.189158][ T6074] el0_svc_common+0x138/0x258 [ 210.189995][ T6074] do_el0_svc+0x58/0x13c [ 210.190692][ T6074] el0_svc+0x78/0x1d0 [ 210.191318][ T6074] el0t_64_sync_handler+0xcc/0xe4 [ 210.192207][ T6074] el0t_64_sync+0x1a0/0x1a4 [ 210.194370][ T6074] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.196419][ T6074] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.381031][ T6076] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.382347][ T6076] CPU: 1 PID: 6076 Comm: syz.1.566 Not tainted syzkaller #0 [ 210.383543][ T6076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 210.385187][ T6076] Call trace: [ 210.385699][ T6076] dump_backtrace+0x0/0x458 [ 210.386456][ T6076] show_stack+0x2c/0x3c [ 210.387102][ T6076] __dump_stack+0x30/0x40 [ 210.387804][ T6076] dump_stack_lvl+0xf4/0x15c [ 210.388571][ T6076] dump_stack+0x1c/0x5c [ 210.389268][ T6076] sysfs_create_dir_ns+0x244/0x264 [ 210.390160][ T6076] kobject_add_internal+0x5ac/0xc3c [ 210.391058][ T6076] kobject_init_and_add+0x124/0x190 [ 210.391952][ T6076] gfs2_sys_fs_add+0x200/0x41c [ 210.392762][ T6076] gfs2_fill_super+0xddc/0x1a18 [ 210.393548][ T6076] get_tree_bdev+0x358/0x544 [ 210.394269][ T6076] gfs2_get_tree+0x54/0x1b4 [ 210.394994][ T6076] vfs_get_tree+0x90/0x274 [ 210.395697][ T6076] do_new_mount+0x228/0x810 [ 210.396389][ T6076] path_mount+0x5bc/0x1008 [ 210.397059][ T6076] __arm64_sys_mount+0x514/0x5f0 [ 210.397900][ T6076] invoke_syscall+0x98/0x2b0 [ 210.398657][ T6076] el0_svc_common+0x138/0x258 [ 210.399434][ T6076] do_el0_svc+0x58/0x13c [ 210.400088][ T6076] el0_svc+0x78/0x1d0 [ 210.400704][ T6076] el0t_64_sync_handler+0xcc/0xe4 [ 210.401495][ T6076] el0t_64_sync+0x1a0/0x1a4 [ 210.402423][ T6076] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.404442][ T6076] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.681099][ T6078] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.682414][ T6078] CPU: 0 PID: 6078 Comm: syz.1.567 Not tainted syzkaller #0 [ 210.683621][ T6078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 210.685230][ T6078] Call trace: [ 210.685726][ T6078] dump_backtrace+0x0/0x458 [ 210.686449][ T6078] show_stack+0x2c/0x3c [ 210.687149][ T6078] __dump_stack+0x30/0x40 [ 210.687919][ T6078] dump_stack_lvl+0xf4/0x15c [ 210.688654][ T6078] dump_stack+0x1c/0x5c [ 210.689333][ T6078] sysfs_create_dir_ns+0x244/0x264 [ 210.690157][ T6078] kobject_add_internal+0x5ac/0xc3c [ 210.691000][ T6078] kobject_init_and_add+0x124/0x190 [ 210.691905][ T6078] gfs2_sys_fs_add+0x200/0x41c [ 210.692739][ T6078] gfs2_fill_super+0xddc/0x1a18 [ 210.693609][ T6078] get_tree_bdev+0x358/0x544 [ 210.694366][ T6078] gfs2_get_tree+0x54/0x1b4 [ 210.695128][ T6078] vfs_get_tree+0x90/0x274 [ 210.695886][ T6078] do_new_mount+0x228/0x810 [ 210.696656][ T6078] path_mount+0x5bc/0x1008 [ 210.697419][ T6078] __arm64_sys_mount+0x514/0x5f0 [ 210.698275][ T6078] invoke_syscall+0x98/0x2b0 [ 210.699095][ T6078] el0_svc_common+0x138/0x258 [ 210.699927][ T6078] do_el0_svc+0x58/0x13c [ 210.700647][ T6078] el0_svc+0x78/0x1d0 [ 210.701285][ T6078] el0t_64_sync_handler+0xcc/0xe4 [ 210.702184][ T6078] el0t_64_sync+0x1a0/0x1a4 [ 210.703702][ T6078] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.705836][ T6078] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.999255][ T6080] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.002863][ T6080] CPU: 0 PID: 6080 Comm: syz.1.568 Not tainted syzkaller #0 [ 211.003957][ T6080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 211.005578][ T6080] Call trace: [ 211.006078][ T6080] dump_backtrace+0x0/0x458 [ 211.006809][ T6080] show_stack+0x2c/0x3c [ 211.007453][ T6080] __dump_stack+0x30/0x40 [ 211.008156][ T6080] dump_stack_lvl+0xf4/0x15c [ 211.008830][ T6080] dump_stack+0x1c/0x5c [ 211.009427][ T6080] sysfs_create_dir_ns+0x244/0x264 [ 211.010233][ T6080] kobject_add_internal+0x5ac/0xc3c [ 211.011019][ T6080] kobject_init_and_add+0x124/0x190 [ 211.011896][ T6080] gfs2_sys_fs_add+0x200/0x41c [ 211.012713][ T6080] gfs2_fill_super+0xddc/0x1a18 [ 211.013561][ T6080] get_tree_bdev+0x358/0x544 [ 211.014328][ T6080] gfs2_get_tree+0x54/0x1b4 [ 211.015091][ T6080] vfs_get_tree+0x90/0x274 [ 211.015799][ T6080] do_new_mount+0x228/0x810 [ 211.016512][ T6080] path_mount+0x5bc/0x1008 [ 211.017250][ T6080] __arm64_sys_mount+0x514/0x5f0 [ 211.018078][ T6080] invoke_syscall+0x98/0x2b0 [ 211.018852][ T6080] el0_svc_common+0x138/0x258 [ 211.019625][ T6080] do_el0_svc+0x58/0x13c [ 211.020292][ T6080] el0_svc+0x78/0x1d0 [ 211.020979][ T6080] el0t_64_sync_handler+0xcc/0xe4 [ 211.021838][ T6080] el0t_64_sync+0x1a0/0x1a4 [ 211.024060][ T6080] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.026142][ T6080] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:31 executed programs: 554 [ 211.262391][ T6082] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.263609][ T6082] CPU: 1 PID: 6082 Comm: syz.1.569 Not tainted syzkaller #0 [ 211.264869][ T6082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 211.266645][ T6082] Call trace: [ 211.267222][ T6082] dump_backtrace+0x0/0x458 [ 211.268004][ T6082] show_stack+0x2c/0x3c [ 211.268681][ T6082] __dump_stack+0x30/0x40 [ 211.269390][ T6082] dump_stack_lvl+0xf4/0x15c [ 211.270119][ T6082] dump_stack+0x1c/0x5c [ 211.270784][ T6082] sysfs_create_dir_ns+0x244/0x264 [ 211.271654][ T6082] kobject_add_internal+0x5ac/0xc3c [ 211.272487][ T6082] kobject_init_and_add+0x124/0x190 [ 211.273306][ T6082] gfs2_sys_fs_add+0x200/0x41c [ 211.274072][ T6082] gfs2_fill_super+0xddc/0x1a18 [ 211.274854][ T6082] get_tree_bdev+0x358/0x544 [ 211.275570][ T6082] gfs2_get_tree+0x54/0x1b4 [ 211.276327][ T6082] vfs_get_tree+0x90/0x274 [ 211.277083][ T6082] do_new_mount+0x228/0x810 [ 211.277804][ T6082] path_mount+0x5bc/0x1008 [ 211.278537][ T6082] __arm64_sys_mount+0x514/0x5f0 [ 211.279340][ T6082] invoke_syscall+0x98/0x2b0 [ 211.280083][ T6082] el0_svc_common+0x138/0x258 [ 211.280837][ T6082] do_el0_svc+0x58/0x13c [ 211.281525][ T6082] el0_svc+0x78/0x1d0 [ 211.282156][ T6082] el0t_64_sync_handler+0xcc/0xe4 [ 211.282986][ T6082] el0t_64_sync+0x1a0/0x1a4 [ 211.284213][ T6082] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.286225][ T6082] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.427043][ T6084] set_capacity_and_notify: 12 callbacks suppressed [ 211.427054][ T6084] loop1: detected capacity change from 0 to 32768 [ 211.461020][ T6084] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.462240][ T6084] CPU: 1 PID: 6084 Comm: syz.1.570 Not tainted syzkaller #0 [ 211.463490][ T6084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 211.465246][ T6084] Call trace: [ 211.465793][ T6084] dump_backtrace+0x0/0x458 [ 211.466579][ T6084] show_stack+0x2c/0x3c [ 211.467305][ T6084] __dump_stack+0x30/0x40 [ 211.468040][ T6084] dump_stack_lvl+0xf4/0x15c [ 211.468790][ T6084] dump_stack+0x1c/0x5c [ 211.469472][ T6084] sysfs_create_dir_ns+0x244/0x264 [ 211.470284][ T6084] kobject_add_internal+0x5ac/0xc3c [ 211.471174][ T6084] kobject_init_and_add+0x124/0x190 [ 211.472041][ T6084] gfs2_sys_fs_add+0x200/0x41c [ 211.472794][ T6084] gfs2_fill_super+0xddc/0x1a18 [ 211.473632][ T6084] get_tree_bdev+0x358/0x544 [ 211.474417][ T6084] gfs2_get_tree+0x54/0x1b4 [ 211.475172][ T6084] vfs_get_tree+0x90/0x274 [ 211.475917][ T6084] do_new_mount+0x228/0x810 [ 211.476678][ T6084] path_mount+0x5bc/0x1008 [ 211.477428][ T6084] __arm64_sys_mount+0x514/0x5f0 [ 211.478316][ T6084] invoke_syscall+0x98/0x2b0 [ 211.479111][ T6084] el0_svc_common+0x138/0x258 [ 211.479882][ T6084] do_el0_svc+0x58/0x13c [ 211.480592][ T6084] el0_svc+0x78/0x1d0 [ 211.481217][ T6084] el0t_64_sync_handler+0xcc/0xe4 [ 211.482093][ T6084] el0t_64_sync+0x1a0/0x1a4 [ 211.485223][ T6084] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.487329][ T6084] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.628744][ T6086] loop1: detected capacity change from 0 to 32768 [ 211.636527][ T6086] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.637934][ T6086] CPU: 0 PID: 6086 Comm: syz.1.571 Not tainted syzkaller #0 [ 211.639078][ T6086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 211.640688][ T6086] Call trace: [ 211.641222][ T6086] dump_backtrace+0x0/0x458 [ 211.641950][ T6086] show_stack+0x2c/0x3c [ 211.642599][ T6086] __dump_stack+0x30/0x40 [ 211.643338][ T6086] dump_stack_lvl+0xf4/0x15c [ 211.644109][ T6086] dump_stack+0x1c/0x5c [ 211.644789][ T6086] sysfs_create_dir_ns+0x244/0x264 [ 211.645594][ T6086] kobject_add_internal+0x5ac/0xc3c [ 211.646421][ T6086] kobject_init_and_add+0x124/0x190 [ 211.647278][ T6086] gfs2_sys_fs_add+0x200/0x41c [ 211.648138][ T6086] gfs2_fill_super+0xddc/0x1a18 [ 211.648869][ T6086] get_tree_bdev+0x358/0x544 [ 211.649612][ T6086] gfs2_get_tree+0x54/0x1b4 [ 211.650352][ T6086] vfs_get_tree+0x90/0x274 [ 211.651038][ T6086] do_new_mount+0x228/0x810 [ 211.651744][ T6086] path_mount+0x5bc/0x1008 [ 211.652428][ T6086] __arm64_sys_mount+0x514/0x5f0 [ 211.653191][ T6086] invoke_syscall+0x98/0x2b0 [ 211.653878][ T6086] el0_svc_common+0x138/0x258 [ 211.654626][ T6086] do_el0_svc+0x58/0x13c [ 211.655284][ T6086] el0_svc+0x78/0x1d0 [ 211.655878][ T6086] el0t_64_sync_handler+0xcc/0xe4 [ 211.656693][ T6086] el0t_64_sync+0x1a0/0x1a4 [ 211.657604][ T6086] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.660084][ T6086] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.798629][ T6088] loop1: detected capacity change from 0 to 32768 [ 211.806799][ T6088] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.807963][ T6088] CPU: 1 PID: 6088 Comm: syz.1.572 Not tainted syzkaller #0 [ 211.809159][ T6088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 211.810831][ T6088] Call trace: [ 211.811402][ T6088] dump_backtrace+0x0/0x458 [ 211.812161][ T6088] show_stack+0x2c/0x3c [ 211.812874][ T6088] __dump_stack+0x30/0x40 [ 211.813569][ T6088] dump_stack_lvl+0xf4/0x15c [ 211.814294][ T6088] dump_stack+0x1c/0x5c [ 211.814970][ T6088] sysfs_create_dir_ns+0x244/0x264 [ 211.815824][ T6088] kobject_add_internal+0x5ac/0xc3c [ 211.816702][ T6088] kobject_init_and_add+0x124/0x190 [ 211.817575][ T6088] gfs2_sys_fs_add+0x200/0x41c [ 211.818344][ T6088] gfs2_fill_super+0xddc/0x1a18 [ 211.819174][ T6088] get_tree_bdev+0x358/0x544 [ 211.819950][ T6088] gfs2_get_tree+0x54/0x1b4 [ 211.820671][ T6088] vfs_get_tree+0x90/0x274 [ 211.821360][ T6088] do_new_mount+0x228/0x810 [ 211.822066][ T6088] path_mount+0x5bc/0x1008 [ 211.822833][ T6088] __arm64_sys_mount+0x514/0x5f0 [ 211.823673][ T6088] invoke_syscall+0x98/0x2b0 [ 211.824491][ T6088] el0_svc_common+0x138/0x258 [ 211.825285][ T6088] do_el0_svc+0x58/0x13c [ 211.826021][ T6088] el0_svc+0x78/0x1d0 [ 211.826756][ T6088] el0t_64_sync_handler+0xcc/0xe4 [ 211.827636][ T6088] el0t_64_sync+0x1a0/0x1a4 [ 211.829644][ T6088] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.831743][ T6088] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.965763][ T6090] loop1: detected capacity change from 0 to 32768 [ 212.011111][ T6090] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.012403][ T6090] CPU: 0 PID: 6090 Comm: syz.1.573 Not tainted syzkaller #0 [ 212.013590][ T6090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 212.015150][ T6090] Call trace: [ 212.015649][ T6090] dump_backtrace+0x0/0x458 [ 212.016374][ T6090] show_stack+0x2c/0x3c [ 212.017024][ T6090] __dump_stack+0x30/0x40 [ 212.017743][ T6090] dump_stack_lvl+0xf4/0x15c [ 212.018511][ T6090] dump_stack+0x1c/0x5c [ 212.019207][ T6090] sysfs_create_dir_ns+0x244/0x264 [ 212.020072][ T6090] kobject_add_internal+0x5ac/0xc3c [ 212.020988][ T6090] kobject_init_and_add+0x124/0x190 [ 212.021962][ T6090] gfs2_sys_fs_add+0x200/0x41c [ 212.022776][ T6090] gfs2_fill_super+0xddc/0x1a18 [ 212.023628][ T6090] get_tree_bdev+0x358/0x544 [ 212.024430][ T6090] gfs2_get_tree+0x54/0x1b4 [ 212.025249][ T6090] vfs_get_tree+0x90/0x274 [ 212.025933][ T6090] do_new_mount+0x228/0x810 [ 212.026695][ T6090] path_mount+0x5bc/0x1008 [ 212.027427][ T6090] __arm64_sys_mount+0x514/0x5f0 [ 212.028294][ T6090] invoke_syscall+0x98/0x2b0 [ 212.029031][ T6090] el0_svc_common+0x138/0x258 [ 212.029776][ T6090] do_el0_svc+0x58/0x13c [ 212.030456][ T6090] el0_svc+0x78/0x1d0 [ 212.031111][ T6090] el0t_64_sync_handler+0xcc/0xe4 [ 212.031969][ T6090] el0t_64_sync+0x1a0/0x1a4 [ 212.032996][ T6090] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.035126][ T6090] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.169003][ T6092] loop1: detected capacity change from 0 to 32768 [ 212.231553][ T6092] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.232805][ T6092] CPU: 0 PID: 6092 Comm: syz.1.574 Not tainted syzkaller #0 [ 212.234010][ T6092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 212.235572][ T6092] Call trace: [ 212.236076][ T6092] dump_backtrace+0x0/0x458 [ 212.236741][ T6092] show_stack+0x2c/0x3c [ 212.237399][ T6092] __dump_stack+0x30/0x40 [ 212.238100][ T6092] dump_stack_lvl+0xf4/0x15c [ 212.238789][ T6092] dump_stack+0x1c/0x5c [ 212.239493][ T6092] sysfs_create_dir_ns+0x244/0x264 [ 212.240348][ T6092] kobject_add_internal+0x5ac/0xc3c [ 212.241219][ T6092] kobject_init_and_add+0x124/0x190 [ 212.242051][ T6092] gfs2_sys_fs_add+0x200/0x41c [ 212.242888][ T6092] gfs2_fill_super+0xddc/0x1a18 [ 212.243743][ T6092] get_tree_bdev+0x358/0x544 [ 212.244531][ T6092] gfs2_get_tree+0x54/0x1b4 [ 212.245242][ T6092] vfs_get_tree+0x90/0x274 [ 212.245955][ T6092] do_new_mount+0x228/0x810 [ 212.246700][ T6092] path_mount+0x5bc/0x1008 [ 212.247455][ T6092] __arm64_sys_mount+0x514/0x5f0 [ 212.248277][ T6092] invoke_syscall+0x98/0x2b0 [ 212.248992][ T6092] el0_svc_common+0x138/0x258 [ 212.249760][ T6092] do_el0_svc+0x58/0x13c [ 212.250484][ T6092] el0_svc+0x78/0x1d0 [ 212.251176][ T6092] el0t_64_sync_handler+0xcc/0xe4 [ 212.252061][ T6092] el0t_64_sync+0x1a0/0x1a4 [ 212.254451][ T6092] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.256469][ T6092] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.392963][ T6094] loop1: detected capacity change from 0 to 32768 [ 212.440987][ T6094] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.442163][ T6094] CPU: 1 PID: 6094 Comm: syz.1.575 Not tainted syzkaller #0 [ 212.443300][ T6094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 212.444982][ T6094] Call trace: [ 212.445531][ T6094] dump_backtrace+0x0/0x458 [ 212.446203][ T6094] show_stack+0x2c/0x3c [ 212.446887][ T6094] __dump_stack+0x30/0x40 [ 212.447561][ T6094] dump_stack_lvl+0xf4/0x15c [ 212.448308][ T6094] dump_stack+0x1c/0x5c [ 212.448910][ T6094] sysfs_create_dir_ns+0x244/0x264 [ 212.449768][ T6094] kobject_add_internal+0x5ac/0xc3c [ 212.450588][ T6094] kobject_init_and_add+0x124/0x190 [ 212.451405][ T6094] gfs2_sys_fs_add+0x200/0x41c [ 212.452148][ T6094] gfs2_fill_super+0xddc/0x1a18 [ 212.452909][ T6094] get_tree_bdev+0x358/0x544 [ 212.453687][ T6094] gfs2_get_tree+0x54/0x1b4 [ 212.454407][ T6094] vfs_get_tree+0x90/0x274 [ 212.455093][ T6094] do_new_mount+0x228/0x810 [ 212.455875][ T6094] path_mount+0x5bc/0x1008 [ 212.456599][ T6094] __arm64_sys_mount+0x514/0x5f0 [ 212.457418][ T6094] invoke_syscall+0x98/0x2b0 [ 212.458189][ T6094] el0_svc_common+0x138/0x258 [ 212.458866][ T6094] do_el0_svc+0x58/0x13c [ 212.459493][ T6094] el0_svc+0x78/0x1d0 [ 212.460086][ T6094] el0t_64_sync_handler+0xcc/0xe4 [ 212.460892][ T6094] el0t_64_sync+0x1a0/0x1a4 [ 212.461814][ T6094] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.463939][ T6094] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.631589][ T6096] loop1: detected capacity change from 0 to 32768 [ 212.686262][ T6096] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.687430][ T6096] CPU: 0 PID: 6096 Comm: syz.1.576 Not tainted syzkaller #0 [ 212.688581][ T6096] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 212.690075][ T6096] Call trace: [ 212.690565][ T6096] dump_backtrace+0x0/0x458 [ 212.691268][ T6096] show_stack+0x2c/0x3c [ 212.691923][ T6096] __dump_stack+0x30/0x40 [ 212.692588][ T6096] dump_stack_lvl+0xf4/0x15c [ 212.693323][ T6096] dump_stack+0x1c/0x5c [ 212.693955][ T6096] sysfs_create_dir_ns+0x244/0x264 [ 212.694771][ T6096] kobject_add_internal+0x5ac/0xc3c [ 212.695662][ T6096] kobject_init_and_add+0x124/0x190 [ 212.696512][ T6096] gfs2_sys_fs_add+0x200/0x41c [ 212.697251][ T6096] gfs2_fill_super+0xddc/0x1a18 [ 212.697975][ T6096] get_tree_bdev+0x358/0x544 [ 212.698687][ T6096] gfs2_get_tree+0x54/0x1b4 [ 212.699361][ T6096] vfs_get_tree+0x90/0x274 [ 212.700027][ T6096] do_new_mount+0x228/0x810 [ 212.700709][ T6096] path_mount+0x5bc/0x1008 [ 212.701383][ T6096] __arm64_sys_mount+0x514/0x5f0 [ 212.702198][ T6096] invoke_syscall+0x98/0x2b0 [ 212.702961][ T6096] el0_svc_common+0x138/0x258 [ 212.703748][ T6096] do_el0_svc+0x58/0x13c [ 212.704446][ T6096] el0_svc+0x78/0x1d0 [ 212.705098][ T6096] el0t_64_sync_handler+0xcc/0xe4 [ 212.705839][ T6096] el0t_64_sync+0x1a0/0x1a4 [ 212.709025][ T6096] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.711792][ T6096] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.846557][ T6098] loop1: detected capacity change from 0 to 32768 [ 212.884456][ T6098] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.885694][ T6098] CPU: 0 PID: 6098 Comm: syz.1.577 Not tainted syzkaller #0 [ 212.886876][ T6098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 212.888450][ T6098] Call trace: [ 212.888959][ T6098] dump_backtrace+0x0/0x458 [ 212.889705][ T6098] show_stack+0x2c/0x3c [ 212.890385][ T6098] __dump_stack+0x30/0x40 [ 212.891135][ T6098] dump_stack_lvl+0xf4/0x15c [ 212.891959][ T6098] dump_stack+0x1c/0x5c [ 212.892644][ T6098] sysfs_create_dir_ns+0x244/0x264 [ 212.893461][ T6098] kobject_add_internal+0x5ac/0xc3c [ 212.894302][ T6098] kobject_init_and_add+0x124/0x190 [ 212.895235][ T6098] gfs2_sys_fs_add+0x200/0x41c [ 212.896079][ T6098] gfs2_fill_super+0xddc/0x1a18 [ 212.896907][ T6098] get_tree_bdev+0x358/0x544 [ 212.897687][ T6098] gfs2_get_tree+0x54/0x1b4 [ 212.898410][ T6098] vfs_get_tree+0x90/0x274 [ 212.899134][ T6098] do_new_mount+0x228/0x810 [ 212.899841][ T6098] path_mount+0x5bc/0x1008 [ 212.900574][ T6098] __arm64_sys_mount+0x514/0x5f0 [ 212.901355][ T6098] invoke_syscall+0x98/0x2b0 [ 212.902103][ T6098] el0_svc_common+0x138/0x258 [ 212.902831][ T6098] do_el0_svc+0x58/0x13c [ 212.903563][ T6098] el0_svc+0x78/0x1d0 [ 212.904202][ T6098] el0t_64_sync_handler+0xcc/0xe4 [ 212.905040][ T6098] el0t_64_sync+0x1a0/0x1a4 [ 212.906989][ T6098] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.909166][ T6098] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.049435][ T6100] loop1: detected capacity change from 0 to 32768 [ 213.059723][ T6100] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.060901][ T6100] CPU: 1 PID: 6100 Comm: syz.1.578 Not tainted syzkaller #0 [ 213.062194][ T6100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 213.063958][ T6100] Call trace: [ 213.064532][ T6100] dump_backtrace+0x0/0x458 [ 213.065278][ T6100] show_stack+0x2c/0x3c [ 213.065952][ T6100] __dump_stack+0x30/0x40 [ 213.066617][ T6100] dump_stack_lvl+0xf4/0x15c [ 213.067305][ T6100] dump_stack+0x1c/0x5c [ 213.067939][ T6100] sysfs_create_dir_ns+0x244/0x264 [ 213.068793][ T6100] kobject_add_internal+0x5ac/0xc3c [ 213.069643][ T6100] kobject_init_and_add+0x124/0x190 [ 213.070464][ T6100] gfs2_sys_fs_add+0x200/0x41c [ 213.071207][ T6100] gfs2_fill_super+0xddc/0x1a18 [ 213.071983][ T6100] get_tree_bdev+0x358/0x544 [ 213.072724][ T6100] gfs2_get_tree+0x54/0x1b4 [ 213.073412][ T6100] vfs_get_tree+0x90/0x274 [ 213.074170][ T6100] do_new_mount+0x228/0x810 [ 213.074890][ T6100] path_mount+0x5bc/0x1008 [ 213.075558][ T6100] __arm64_sys_mount+0x514/0x5f0 [ 213.076253][ T6100] invoke_syscall+0x98/0x2b0 [ 213.076986][ T6100] el0_svc_common+0x138/0x258 [ 213.077655][ T6100] do_el0_svc+0x58/0x13c [ 213.078305][ T6100] el0_svc+0x78/0x1d0 [ 213.079001][ T6100] el0t_64_sync_handler+0xcc/0xe4 [ 213.079867][ T6100] el0t_64_sync+0x1a0/0x1a4 [ 213.080761][ T6100] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.082814][ T6100] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.218679][ T6102] loop1: detected capacity change from 0 to 32768 [ 213.261080][ T6102] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.262238][ T6102] CPU: 0 PID: 6102 Comm: syz.1.579 Not tainted syzkaller #0 [ 213.263376][ T6102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 213.265072][ T6102] Call trace: [ 213.265623][ T6102] dump_backtrace+0x0/0x458 [ 213.266476][ T6102] show_stack+0x2c/0x3c [ 213.267199][ T6102] __dump_stack+0x30/0x40 [ 213.267945][ T6102] dump_stack_lvl+0xf4/0x15c [ 213.268744][ T6102] dump_stack+0x1c/0x5c [ 213.269441][ T6102] sysfs_create_dir_ns+0x244/0x264 [ 213.270293][ T6102] kobject_add_internal+0x5ac/0xc3c [ 213.271172][ T6102] kobject_init_and_add+0x124/0x190 [ 213.271992][ T6102] gfs2_sys_fs_add+0x200/0x41c [ 213.272846][ T6102] gfs2_fill_super+0xddc/0x1a18 [ 213.273664][ T6102] get_tree_bdev+0x358/0x544 [ 213.274424][ T6102] gfs2_get_tree+0x54/0x1b4 [ 213.275141][ T6102] vfs_get_tree+0x90/0x274 [ 213.275887][ T6102] do_new_mount+0x228/0x810 [ 213.276614][ T6102] path_mount+0x5bc/0x1008 [ 213.277322][ T6102] __arm64_sys_mount+0x514/0x5f0 [ 213.278087][ T6102] invoke_syscall+0x98/0x2b0 [ 213.278818][ T6102] el0_svc_common+0x138/0x258 [ 213.279604][ T6102] do_el0_svc+0x58/0x13c [ 213.280324][ T6102] el0_svc+0x78/0x1d0 [ 213.281020][ T6102] el0t_64_sync_handler+0xcc/0xe4 [ 213.281905][ T6102] el0t_64_sync+0x1a0/0x1a4 [ 213.284216][ T6102] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.286317][ T6102] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.471066][ T6104] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.472304][ T6104] CPU: 1 PID: 6104 Comm: syz.1.580 Not tainted syzkaller #0 [ 213.473546][ T6104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 213.475252][ T6104] Call trace: [ 213.475781][ T6104] dump_backtrace+0x0/0x458 [ 213.476518][ T6104] show_stack+0x2c/0x3c [ 213.477155][ T6104] __dump_stack+0x30/0x40 [ 213.477915][ T6104] dump_stack_lvl+0xf4/0x15c [ 213.478683][ T6104] dump_stack+0x1c/0x5c [ 213.479370][ T6104] sysfs_create_dir_ns+0x244/0x264 [ 213.480204][ T6104] kobject_add_internal+0x5ac/0xc3c [ 213.481064][ T6104] kobject_init_and_add+0x124/0x190 [ 213.481920][ T6104] gfs2_sys_fs_add+0x200/0x41c [ 213.482692][ T6104] gfs2_fill_super+0xddc/0x1a18 [ 213.483441][ T6104] get_tree_bdev+0x358/0x544 [ 213.484167][ T6104] gfs2_get_tree+0x54/0x1b4 [ 213.484898][ T6104] vfs_get_tree+0x90/0x274 [ 213.485625][ T6104] do_new_mount+0x228/0x810 [ 213.486356][ T6104] path_mount+0x5bc/0x1008 [ 213.487070][ T6104] __arm64_sys_mount+0x514/0x5f0 [ 213.487926][ T6104] invoke_syscall+0x98/0x2b0 [ 213.488806][ T6104] el0_svc_common+0x138/0x258 [ 213.489545][ T6104] do_el0_svc+0x58/0x13c [ 213.490285][ T6104] el0_svc+0x78/0x1d0 [ 213.491022][ T6104] el0t_64_sync_handler+0xcc/0xe4 [ 213.491926][ T6104] el0t_64_sync+0x1a0/0x1a4 [ 213.492887][ T6104] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.494914][ T6104] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.687900][ T6106] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.689214][ T6106] CPU: 1 PID: 6106 Comm: syz.1.581 Not tainted syzkaller #0 [ 213.690380][ T6106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 213.692034][ T6106] Call trace: [ 213.692595][ T6106] dump_backtrace+0x0/0x458 [ 213.693330][ T6106] show_stack+0x2c/0x3c [ 213.694037][ T6106] __dump_stack+0x30/0x40 [ 213.694770][ T6106] dump_stack_lvl+0xf4/0x15c [ 213.695513][ T6106] dump_stack+0x1c/0x5c [ 213.696160][ T6106] sysfs_create_dir_ns+0x244/0x264 [ 213.697016][ T6106] kobject_add_internal+0x5ac/0xc3c [ 213.697899][ T6106] kobject_init_and_add+0x124/0x190 [ 213.698747][ T6106] gfs2_sys_fs_add+0x200/0x41c [ 213.699557][ T6106] gfs2_fill_super+0xddc/0x1a18 [ 213.700356][ T6106] get_tree_bdev+0x358/0x544 [ 213.701101][ T6106] gfs2_get_tree+0x54/0x1b4 [ 213.701776][ T6106] vfs_get_tree+0x90/0x274 [ 213.702399][ T6106] do_new_mount+0x228/0x810 [ 213.703177][ T6106] path_mount+0x5bc/0x1008 [ 213.703958][ T6106] __arm64_sys_mount+0x514/0x5f0 [ 213.704825][ T6106] invoke_syscall+0x98/0x2b0 [ 213.705608][ T6106] el0_svc_common+0x138/0x258 [ 213.706428][ T6106] do_el0_svc+0x58/0x13c [ 213.707108][ T6106] el0_svc+0x78/0x1d0 [ 213.707713][ T6106] el0t_64_sync_handler+0xcc/0xe4 [ 213.708474][ T6106] el0t_64_sync+0x1a0/0x1a4 [ 213.709422][ T6106] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.711632][ T6106] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.893400][ T6108] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.894716][ T6108] CPU: 0 PID: 6108 Comm: syz.1.582 Not tainted syzkaller #0 [ 213.895907][ T6108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 213.897458][ T6108] Call trace: [ 213.897993][ T6108] dump_backtrace+0x0/0x458 [ 213.898702][ T6108] show_stack+0x2c/0x3c [ 213.899380][ T6108] __dump_stack+0x30/0x40 [ 213.900100][ T6108] dump_stack_lvl+0xf4/0x15c [ 213.900865][ T6108] dump_stack+0x1c/0x5c [ 213.901491][ T6108] sysfs_create_dir_ns+0x244/0x264 [ 213.902295][ T6108] kobject_add_internal+0x5ac/0xc3c [ 213.903152][ T6108] kobject_init_and_add+0x124/0x190 [ 213.903924][ T6108] gfs2_sys_fs_add+0x200/0x41c [ 213.904644][ T6108] gfs2_fill_super+0xddc/0x1a18 [ 213.905409][ T6108] get_tree_bdev+0x358/0x544 [ 213.906122][ T6108] gfs2_get_tree+0x54/0x1b4 [ 213.906890][ T6108] vfs_get_tree+0x90/0x274 [ 213.907644][ T6108] do_new_mount+0x228/0x810 [ 213.908396][ T6108] path_mount+0x5bc/0x1008 [ 213.909162][ T6108] __arm64_sys_mount+0x514/0x5f0 [ 213.909942][ T6108] invoke_syscall+0x98/0x2b0 [ 213.910682][ T6108] el0_svc_common+0x138/0x258 [ 213.911423][ T6108] do_el0_svc+0x58/0x13c [ 213.912104][ T6108] el0_svc+0x78/0x1d0 [ 213.912777][ T6108] el0t_64_sync_handler+0xcc/0xe4 [ 213.913674][ T6108] el0t_64_sync+0x1a0/0x1a4 [ 213.915196][ T6108] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.917251][ T6108] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.221090][ T6110] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.222325][ T6110] CPU: 1 PID: 6110 Comm: syz.1.583 Not tainted syzkaller #0 [ 214.223475][ T6110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 214.225079][ T6110] Call trace: [ 214.225596][ T6110] dump_backtrace+0x0/0x458 [ 214.226388][ T6110] show_stack+0x2c/0x3c [ 214.227110][ T6110] __dump_stack+0x30/0x40 [ 214.227837][ T6110] dump_stack_lvl+0xf4/0x15c [ 214.228554][ T6110] dump_stack+0x1c/0x5c [ 214.229153][ T6110] sysfs_create_dir_ns+0x244/0x264 [ 214.229929][ T6110] kobject_add_internal+0x5ac/0xc3c [ 214.230720][ T6110] kobject_init_and_add+0x124/0x190 [ 214.231508][ T6110] gfs2_sys_fs_add+0x200/0x41c [ 214.232306][ T6110] gfs2_fill_super+0xddc/0x1a18 [ 214.233155][ T6110] get_tree_bdev+0x358/0x544 [ 214.233950][ T6110] gfs2_get_tree+0x54/0x1b4 [ 214.234708][ T6110] vfs_get_tree+0x90/0x274 [ 214.235450][ T6110] do_new_mount+0x228/0x810 [ 214.236164][ T6110] path_mount+0x5bc/0x1008 [ 214.236873][ T6110] __arm64_sys_mount+0x514/0x5f0 [ 214.237642][ T6110] invoke_syscall+0x98/0x2b0 [ 214.238348][ T6110] el0_svc_common+0x138/0x258 [ 214.239032][ T6110] do_el0_svc+0x58/0x13c [ 214.239750][ T6110] el0_svc+0x78/0x1d0 [ 214.240428][ T6110] el0t_64_sync_handler+0xcc/0xe4 [ 214.241273][ T6110] el0t_64_sync+0x1a0/0x1a4 [ 214.242440][ T6110] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.244247][ T6110] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.416065][ T6112] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.417379][ T6112] CPU: 0 PID: 6112 Comm: syz.1.584 Not tainted syzkaller #0 [ 214.418505][ T6112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 214.420011][ T6112] Call trace: [ 214.420532][ T6112] dump_backtrace+0x0/0x458 [ 214.421247][ T6112] show_stack+0x2c/0x3c [ 214.421976][ T6112] __dump_stack+0x30/0x40 [ 214.422663][ T6112] dump_stack_lvl+0xf4/0x15c [ 214.423470][ T6112] dump_stack+0x1c/0x5c [ 214.424115][ T6112] sysfs_create_dir_ns+0x244/0x264 [ 214.424915][ T6112] kobject_add_internal+0x5ac/0xc3c [ 214.425758][ T6112] kobject_init_and_add+0x124/0x190 [ 214.426560][ T6112] gfs2_sys_fs_add+0x200/0x41c [ 214.427349][ T6112] gfs2_fill_super+0xddc/0x1a18 [ 214.428096][ T6112] get_tree_bdev+0x358/0x544 [ 214.428797][ T6112] gfs2_get_tree+0x54/0x1b4 [ 214.429481][ T6112] vfs_get_tree+0x90/0x274 [ 214.430151][ T6112] do_new_mount+0x228/0x810 [ 214.430860][ T6112] path_mount+0x5bc/0x1008 [ 214.431570][ T6112] __arm64_sys_mount+0x514/0x5f0 [ 214.432354][ T6112] invoke_syscall+0x98/0x2b0 [ 214.433060][ T6112] el0_svc_common+0x138/0x258 [ 214.433754][ T6112] do_el0_svc+0x58/0x13c [ 214.434374][ T6112] el0_svc+0x78/0x1d0 [ 214.435013][ T6112] el0t_64_sync_handler+0xcc/0xe4 [ 214.435805][ T6112] el0t_64_sync+0x1a0/0x1a4 [ 214.437720][ T6112] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.439722][ T6112] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.587118][ T6114] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.588410][ T6114] CPU: 1 PID: 6114 Comm: syz.1.585 Not tainted syzkaller #0 [ 214.589671][ T6114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 214.591287][ T6114] Call trace: [ 214.591798][ T6114] dump_backtrace+0x0/0x458 [ 214.592603][ T6114] show_stack+0x2c/0x3c [ 214.593317][ T6114] __dump_stack+0x30/0x40 [ 214.594005][ T6114] dump_stack_lvl+0xf4/0x15c [ 214.594754][ T6114] dump_stack+0x1c/0x5c [ 214.595422][ T6114] sysfs_create_dir_ns+0x244/0x264 [ 214.596235][ T6114] kobject_add_internal+0x5ac/0xc3c [ 214.597049][ T6114] kobject_init_and_add+0x124/0x190 [ 214.597803][ T6114] gfs2_sys_fs_add+0x200/0x41c [ 214.598489][ T6114] gfs2_fill_super+0xddc/0x1a18 [ 214.599197][ T6114] get_tree_bdev+0x358/0x544 [ 214.599944][ T6114] gfs2_get_tree+0x54/0x1b4 [ 214.600696][ T6114] vfs_get_tree+0x90/0x274 [ 214.601443][ T6114] do_new_mount+0x228/0x810 [ 214.602192][ T6114] path_mount+0x5bc/0x1008 [ 214.602949][ T6114] __arm64_sys_mount+0x514/0x5f0 [ 214.603799][ T6114] invoke_syscall+0x98/0x2b0 [ 214.604559][ T6114] el0_svc_common+0x138/0x258 [ 214.605331][ T6114] do_el0_svc+0x58/0x13c [ 214.606058][ T6114] el0_svc+0x78/0x1d0 [ 214.606714][ T6114] el0t_64_sync_handler+0xcc/0xe4 [ 214.607555][ T6114] el0t_64_sync+0x1a0/0x1a4 [ 214.608556][ T6114] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.610728][ T6114] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.790855][ T6116] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.792251][ T6116] CPU: 1 PID: 6116 Comm: syz.1.586 Not tainted syzkaller #0 [ 214.793424][ T6116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 214.795148][ T6116] Call trace: [ 214.795665][ T6116] dump_backtrace+0x0/0x458 [ 214.796426][ T6116] show_stack+0x2c/0x3c [ 214.797141][ T6116] __dump_stack+0x30/0x40 [ 214.797886][ T6116] dump_stack_lvl+0xf4/0x15c [ 214.798637][ T6116] dump_stack+0x1c/0x5c [ 214.799297][ T6116] sysfs_create_dir_ns+0x244/0x264 [ 214.800110][ T6116] kobject_add_internal+0x5ac/0xc3c [ 214.801005][ T6116] kobject_init_and_add+0x124/0x190 [ 214.801907][ T6116] gfs2_sys_fs_add+0x200/0x41c [ 214.802806][ T6116] gfs2_fill_super+0xddc/0x1a18 [ 214.803595][ T6116] get_tree_bdev+0x358/0x544 [ 214.804437][ T6116] gfs2_get_tree+0x54/0x1b4 [ 214.805222][ T6116] vfs_get_tree+0x90/0x274 [ 214.806052][ T6116] do_new_mount+0x228/0x810 [ 214.806896][ T6116] path_mount+0x5bc/0x1008 [ 214.807696][ T6116] __arm64_sys_mount+0x514/0x5f0 [ 214.808467][ T6116] invoke_syscall+0x98/0x2b0 [ 214.809196][ T6116] el0_svc_common+0x138/0x258 [ 214.809951][ T6116] do_el0_svc+0x58/0x13c [ 214.810711][ T6116] el0_svc+0x78/0x1d0 [ 214.811436][ T6116] el0t_64_sync_handler+0xcc/0xe4 [ 214.812266][ T6116] el0t_64_sync+0x1a0/0x1a4 [ 214.813875][ T6116] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.815855][ T6116] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.001031][ T6118] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.002281][ T6118] CPU: 0 PID: 6118 Comm: syz.1.587 Not tainted syzkaller #0 [ 215.003454][ T6118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 215.005179][ T6118] Call trace: [ 215.005727][ T6118] dump_backtrace+0x0/0x458 [ 215.006520][ T6118] show_stack+0x2c/0x3c [ 215.007170][ T6118] __dump_stack+0x30/0x40 [ 215.007872][ T6118] dump_stack_lvl+0xf4/0x15c [ 215.008709][ T6118] dump_stack+0x1c/0x5c [ 215.009380][ T6118] sysfs_create_dir_ns+0x244/0x264 [ 215.010297][ T6118] kobject_add_internal+0x5ac/0xc3c [ 215.011213][ T6118] kobject_init_and_add+0x124/0x190 [ 215.012121][ T6118] gfs2_sys_fs_add+0x200/0x41c [ 215.012840][ T6118] gfs2_fill_super+0xddc/0x1a18 [ 215.013628][ T6118] get_tree_bdev+0x358/0x544 [ 215.014371][ T6118] gfs2_get_tree+0x54/0x1b4 [ 215.015037][ T6118] vfs_get_tree+0x90/0x274 [ 215.015819][ T6118] do_new_mount+0x228/0x810 [ 215.016599][ T6118] path_mount+0x5bc/0x1008 [ 215.017358][ T6118] __arm64_sys_mount+0x514/0x5f0 [ 215.018197][ T6118] invoke_syscall+0x98/0x2b0 [ 215.018939][ T6118] el0_svc_common+0x138/0x258 [ 215.019684][ T6118] do_el0_svc+0x58/0x13c [ 215.020401][ T6118] el0_svc+0x78/0x1d0 [ 215.021050][ T6118] el0t_64_sync_handler+0xcc/0xe4 [ 215.021875][ T6118] el0t_64_sync+0x1a0/0x1a4 [ 215.024207][ T6118] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.026230][ T6118] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.049778][ T4943] Bluetooth: hci1: command 0x0406 tx timeout [ 215.275879][ T6120] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.277172][ T6120] CPU: 1 PID: 6120 Comm: syz.1.588 Not tainted syzkaller #0 [ 215.278321][ T6120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 215.279989][ T6120] Call trace: [ 215.280528][ T6120] dump_backtrace+0x0/0x458 [ 215.281417][ T6120] show_stack+0x2c/0x3c [ 215.282126][ T6120] __dump_stack+0x30/0x40 [ 215.282841][ T6120] dump_stack_lvl+0xf4/0x15c [ 215.283639][ T6120] dump_stack+0x1c/0x5c [ 215.284360][ T6120] sysfs_create_dir_ns+0x244/0x264 [ 215.285222][ T6120] kobject_add_internal+0x5ac/0xc3c [ 215.286085][ T6120] kobject_init_and_add+0x124/0x190 [ 215.286941][ T6120] gfs2_sys_fs_add+0x200/0x41c [ 215.287717][ T6120] gfs2_fill_super+0xddc/0x1a18 [ 215.288531][ T6120] get_tree_bdev+0x358/0x544 [ 215.289270][ T6120] gfs2_get_tree+0x54/0x1b4 [ 215.289985][ T6120] vfs_get_tree+0x90/0x274 [ 215.290728][ T6120] do_new_mount+0x228/0x810 [ 215.291522][ T6120] path_mount+0x5bc/0x1008 [ 215.292340][ T6120] __arm64_sys_mount+0x514/0x5f0 [ 215.293162][ T6120] invoke_syscall+0x98/0x2b0 [ 215.293918][ T6120] el0_svc_common+0x138/0x258 [ 215.294697][ T6120] do_el0_svc+0x58/0x13c [ 215.295375][ T6120] el0_svc+0x78/0x1d0 [ 215.295989][ T6120] el0t_64_sync_handler+0xcc/0xe4 [ 215.296755][ T6120] el0t_64_sync+0x1a0/0x1a4 [ 215.297685][ T6120] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.299845][ T6120] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.471306][ T6122] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.472502][ T6122] CPU: 1 PID: 6122 Comm: syz.1.589 Not tainted syzkaller #0 [ 215.473576][ T6122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 215.475188][ T6122] Call trace: [ 215.475720][ T6122] dump_backtrace+0x0/0x458 [ 215.476407][ T6122] show_stack+0x2c/0x3c [ 215.477075][ T6122] __dump_stack+0x30/0x40 [ 215.477741][ T6122] dump_stack_lvl+0xf4/0x15c [ 215.478530][ T6122] dump_stack+0x1c/0x5c [ 215.479208][ T6122] sysfs_create_dir_ns+0x244/0x264 [ 215.480021][ T6122] kobject_add_internal+0x5ac/0xc3c [ 215.480860][ T6122] kobject_init_and_add+0x124/0x190 [ 215.481712][ T6122] gfs2_sys_fs_add+0x200/0x41c [ 215.482498][ T6122] gfs2_fill_super+0xddc/0x1a18 [ 215.483312][ T6122] get_tree_bdev+0x358/0x544 [ 215.484039][ T6122] gfs2_get_tree+0x54/0x1b4 [ 215.484797][ T6122] vfs_get_tree+0x90/0x274 [ 215.485558][ T6122] do_new_mount+0x228/0x810 [ 215.486331][ T6122] path_mount+0x5bc/0x1008 [ 215.487057][ T6122] __arm64_sys_mount+0x514/0x5f0 [ 215.487968][ T6122] invoke_syscall+0x98/0x2b0 [ 215.488702][ T6122] el0_svc_common+0x138/0x258 [ 215.489454][ T6122] do_el0_svc+0x58/0x13c [ 215.490143][ T6122] el0_svc+0x78/0x1d0 [ 215.490835][ T6122] el0t_64_sync_handler+0xcc/0xe4 [ 215.491707][ T6122] el0t_64_sync+0x1a0/0x1a4 [ 215.492579][ T6122] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.494594][ T6122] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.730935][ T6124] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.732211][ T6124] CPU: 1 PID: 6124 Comm: syz.1.590 Not tainted syzkaller #0 [ 215.733403][ T6124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 215.734884][ T6124] Call trace: [ 215.735409][ T6124] dump_backtrace+0x0/0x458 [ 215.736100][ T6124] show_stack+0x2c/0x3c [ 215.736762][ T6124] __dump_stack+0x30/0x40 [ 215.737432][ T6124] dump_stack_lvl+0xf4/0x15c [ 215.738124][ T6124] dump_stack+0x1c/0x5c [ 215.738762][ T6124] sysfs_create_dir_ns+0x244/0x264 [ 215.739555][ T6124] kobject_add_internal+0x5ac/0xc3c [ 215.740350][ T6124] kobject_init_and_add+0x124/0x190 [ 215.741214][ T6124] gfs2_sys_fs_add+0x200/0x41c [ 215.742001][ T6124] gfs2_fill_super+0xddc/0x1a18 [ 215.742743][ T6124] get_tree_bdev+0x358/0x544 [ 215.743472][ T6124] gfs2_get_tree+0x54/0x1b4 [ 215.744152][ T6124] vfs_get_tree+0x90/0x274 [ 215.744850][ T6124] do_new_mount+0x228/0x810 [ 215.745526][ T6124] path_mount+0x5bc/0x1008 [ 215.746227][ T6124] __arm64_sys_mount+0x514/0x5f0 [ 215.746986][ T6124] invoke_syscall+0x98/0x2b0 [ 215.747725][ T6124] el0_svc_common+0x138/0x258 [ 215.748480][ T6124] do_el0_svc+0x58/0x13c [ 215.749234][ T6124] el0_svc+0x78/0x1d0 [ 215.749899][ T6124] el0t_64_sync_handler+0xcc/0xe4 [ 215.750695][ T6124] el0t_64_sync+0x1a0/0x1a4 [ 215.753433][ T6124] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.755416][ T6124] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.935902][ T6126] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.937116][ T6126] CPU: 0 PID: 6126 Comm: syz.1.591 Not tainted syzkaller #0 [ 215.938276][ T6126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 215.939841][ T6126] Call trace: [ 215.940398][ T6126] dump_backtrace+0x0/0x458 [ 215.941146][ T6126] show_stack+0x2c/0x3c [ 215.941813][ T6126] __dump_stack+0x30/0x40 [ 215.942461][ T6126] dump_stack_lvl+0xf4/0x15c [ 215.943222][ T6126] dump_stack+0x1c/0x5c [ 215.943905][ T6126] sysfs_create_dir_ns+0x244/0x264 [ 215.944764][ T6126] kobject_add_internal+0x5ac/0xc3c [ 215.945667][ T6126] kobject_init_and_add+0x124/0x190 [ 215.946587][ T6126] gfs2_sys_fs_add+0x200/0x41c [ 215.947408][ T6126] gfs2_fill_super+0xddc/0x1a18 [ 215.948242][ T6126] get_tree_bdev+0x358/0x544 [ 215.949035][ T6126] gfs2_get_tree+0x54/0x1b4 [ 215.949760][ T6126] vfs_get_tree+0x90/0x274 [ 215.950477][ T6126] do_new_mount+0x228/0x810 [ 215.951234][ T6126] path_mount+0x5bc/0x1008 [ 215.951954][ T6126] __arm64_sys_mount+0x514/0x5f0 [ 215.952757][ T6126] invoke_syscall+0x98/0x2b0 [ 215.953494][ T6126] el0_svc_common+0x138/0x258 [ 215.954316][ T6126] do_el0_svc+0x58/0x13c [ 215.955037][ T6126] el0_svc+0x78/0x1d0 [ 215.955711][ T6126] el0t_64_sync_handler+0xcc/0xe4 [ 215.956509][ T6126] el0t_64_sync+0x1a0/0x1a4 [ 215.957424][ T6126] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.959458][ T6126] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.111003][ T6128] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.112229][ T6128] CPU: 1 PID: 6128 Comm: syz.1.592 Not tainted syzkaller #0 [ 216.113415][ T6128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 216.114936][ T6128] Call trace: [ 216.115466][ T6128] dump_backtrace+0x0/0x458 [ 216.116132][ T6128] show_stack+0x2c/0x3c [ 216.116825][ T6128] __dump_stack+0x30/0x40 [ 216.117593][ T6128] dump_stack_lvl+0xf4/0x15c [ 216.118289][ T6128] dump_stack+0x1c/0x5c [ 216.119025][ T6128] sysfs_create_dir_ns+0x244/0x264 [ 216.119903][ T6128] kobject_add_internal+0x5ac/0xc3c [ 216.120796][ T6128] kobject_init_and_add+0x124/0x190 [ 216.121659][ T6128] gfs2_sys_fs_add+0x200/0x41c [ 216.122443][ T6128] gfs2_fill_super+0xddc/0x1a18 [ 216.123186][ T6128] get_tree_bdev+0x358/0x544 [ 216.123902][ T6128] gfs2_get_tree+0x54/0x1b4 [ 216.124578][ T6128] vfs_get_tree+0x90/0x274 [ 216.125282][ T6128] do_new_mount+0x228/0x810 [ 216.126062][ T6128] path_mount+0x5bc/0x1008 [ 216.126792][ T6128] __arm64_sys_mount+0x514/0x5f0 [ 216.127615][ T6128] invoke_syscall+0x98/0x2b0 [ 216.128388][ T6128] el0_svc_common+0x138/0x258 [ 216.129172][ T6128] do_el0_svc+0x58/0x13c [ 216.129933][ T6128] el0_svc+0x78/0x1d0 [ 216.130633][ T6128] el0t_64_sync_handler+0xcc/0xe4 [ 216.131485][ T6128] el0t_64_sync+0x1a0/0x1a4 [ 216.133758][ T6128] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.135887][ T6128] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:36 executed programs: 578 [ 216.322297][ T6130] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.323474][ T6130] CPU: 0 PID: 6130 Comm: syz.1.593 Not tainted syzkaller #0 [ 216.324585][ T6130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 216.326217][ T6130] Call trace: [ 216.326674][ T6130] dump_backtrace+0x0/0x458 [ 216.327336][ T6130] show_stack+0x2c/0x3c [ 216.327936][ T6130] __dump_stack+0x30/0x40 [ 216.328587][ T6130] dump_stack_lvl+0xf4/0x15c [ 216.329279][ T6130] dump_stack+0x1c/0x5c [ 216.330052][ T6130] sysfs_create_dir_ns+0x244/0x264 [ 216.330827][ T6130] kobject_add_internal+0x5ac/0xc3c [ 216.331641][ T6130] kobject_init_and_add+0x124/0x190 [ 216.332433][ T6130] gfs2_sys_fs_add+0x200/0x41c [ 216.333227][ T6130] gfs2_fill_super+0xddc/0x1a18 [ 216.334056][ T6130] get_tree_bdev+0x358/0x544 [ 216.334819][ T6130] gfs2_get_tree+0x54/0x1b4 [ 216.335554][ T6130] vfs_get_tree+0x90/0x274 [ 216.336264][ T6130] do_new_mount+0x228/0x810 [ 216.337010][ T6130] path_mount+0x5bc/0x1008 [ 216.337683][ T6130] __arm64_sys_mount+0x514/0x5f0 [ 216.338441][ T6130] invoke_syscall+0x98/0x2b0 [ 216.339157][ T6130] el0_svc_common+0x138/0x258 [ 216.339911][ T6130] do_el0_svc+0x58/0x13c [ 216.340530][ T6130] el0_svc+0x78/0x1d0 [ 216.341127][ T6130] el0t_64_sync_handler+0xcc/0xe4 [ 216.341865][ T6130] el0t_64_sync+0x1a0/0x1a4 [ 216.344096][ T6130] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.346174][ T6130] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.484105][ T6132] set_capacity_and_notify: 14 callbacks suppressed [ 216.484115][ T6132] loop1: detected capacity change from 0 to 32768 [ 216.493593][ T6132] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.494887][ T6132] CPU: 1 PID: 6132 Comm: syz.1.594 Not tainted syzkaller #0 [ 216.496051][ T6132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 216.497652][ T6132] Call trace: [ 216.498132][ T6132] dump_backtrace+0x0/0x458 [ 216.498895][ T6132] show_stack+0x2c/0x3c [ 216.499496][ T6132] __dump_stack+0x30/0x40 [ 216.500195][ T6132] dump_stack_lvl+0xf4/0x15c [ 216.500929][ T6132] dump_stack+0x1c/0x5c [ 216.501625][ T6132] sysfs_create_dir_ns+0x244/0x264 [ 216.502422][ T6132] kobject_add_internal+0x5ac/0xc3c [ 216.503255][ T6132] kobject_init_and_add+0x124/0x190 [ 216.504145][ T6132] gfs2_sys_fs_add+0x200/0x41c [ 216.504907][ T6132] gfs2_fill_super+0xddc/0x1a18 [ 216.505704][ T6132] get_tree_bdev+0x358/0x544 [ 216.506426][ T6132] gfs2_get_tree+0x54/0x1b4 [ 216.507159][ T6132] vfs_get_tree+0x90/0x274 [ 216.507840][ T6132] do_new_mount+0x228/0x810 [ 216.508572][ T6132] path_mount+0x5bc/0x1008 [ 216.509289][ T6132] __arm64_sys_mount+0x514/0x5f0 [ 216.510115][ T6132] invoke_syscall+0x98/0x2b0 [ 216.510843][ T6132] el0_svc_common+0x138/0x258 [ 216.511585][ T6132] do_el0_svc+0x58/0x13c [ 216.512221][ T6132] el0_svc+0x78/0x1d0 [ 216.512868][ T6132] el0t_64_sync_handler+0xcc/0xe4 [ 216.513635][ T6132] el0t_64_sync+0x1a0/0x1a4 [ 216.515362][ T6132] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.517550][ T6132] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.655028][ T6134] loop1: detected capacity change from 0 to 32768 [ 216.701028][ T6134] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.702381][ T6134] CPU: 1 PID: 6134 Comm: syz.1.595 Not tainted syzkaller #0 [ 216.703565][ T6134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 216.705271][ T6134] Call trace: [ 216.705825][ T6134] dump_backtrace+0x0/0x458 [ 216.706537][ T6134] show_stack+0x2c/0x3c [ 216.707279][ T6134] __dump_stack+0x30/0x40 [ 216.707994][ T6134] dump_stack_lvl+0xf4/0x15c [ 216.708742][ T6134] dump_stack+0x1c/0x5c [ 216.709386][ T6134] sysfs_create_dir_ns+0x244/0x264 [ 216.710234][ T6134] kobject_add_internal+0x5ac/0xc3c [ 216.711110][ T6134] kobject_init_and_add+0x124/0x190 [ 216.711965][ T6134] gfs2_sys_fs_add+0x200/0x41c [ 216.712749][ T6134] gfs2_fill_super+0xddc/0x1a18 [ 216.713507][ T6134] get_tree_bdev+0x358/0x544 [ 216.714292][ T6134] gfs2_get_tree+0x54/0x1b4 [ 216.715066][ T6134] vfs_get_tree+0x90/0x274 [ 216.715815][ T6134] do_new_mount+0x228/0x810 [ 216.716558][ T6134] path_mount+0x5bc/0x1008 [ 216.717296][ T6134] __arm64_sys_mount+0x514/0x5f0 [ 216.718178][ T6134] invoke_syscall+0x98/0x2b0 [ 216.718921][ T6134] el0_svc_common+0x138/0x258 [ 216.719722][ T6134] do_el0_svc+0x58/0x13c [ 216.720497][ T6134] el0_svc+0x78/0x1d0 [ 216.721184][ T6134] el0t_64_sync_handler+0xcc/0xe4 [ 216.722026][ T6134] el0t_64_sync+0x1a0/0x1a4 [ 216.723258][ T6134] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.725197][ T6134] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.863188][ T6136] loop1: detected capacity change from 0 to 32768 [ 216.906591][ T6136] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.907806][ T6136] CPU: 0 PID: 6136 Comm: syz.1.596 Not tainted syzkaller #0 [ 216.908895][ T6136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 216.910488][ T6136] Call trace: [ 216.911032][ T6136] dump_backtrace+0x0/0x458 [ 216.911722][ T6136] show_stack+0x2c/0x3c [ 216.912433][ T6136] __dump_stack+0x30/0x40 [ 216.913144][ T6136] dump_stack_lvl+0xf4/0x15c [ 216.913957][ T6136] dump_stack+0x1c/0x5c [ 216.914630][ T6136] sysfs_create_dir_ns+0x244/0x264 [ 216.915451][ T6136] kobject_add_internal+0x5ac/0xc3c [ 216.916282][ T6136] kobject_init_and_add+0x124/0x190 [ 216.917089][ T6136] gfs2_sys_fs_add+0x200/0x41c [ 216.917871][ T6136] gfs2_fill_super+0xddc/0x1a18 [ 216.918692][ T6136] get_tree_bdev+0x358/0x544 [ 216.919476][ T6136] gfs2_get_tree+0x54/0x1b4 [ 216.920217][ T6136] vfs_get_tree+0x90/0x274 [ 216.920904][ T6136] do_new_mount+0x228/0x810 [ 216.921597][ T6136] path_mount+0x5bc/0x1008 [ 216.922256][ T6136] __arm64_sys_mount+0x514/0x5f0 [ 216.923100][ T6136] invoke_syscall+0x98/0x2b0 [ 216.923864][ T6136] el0_svc_common+0x138/0x258 [ 216.924653][ T6136] do_el0_svc+0x58/0x13c [ 216.925386][ T6136] el0_svc+0x78/0x1d0 [ 216.926016][ T6136] el0t_64_sync_handler+0xcc/0xe4 [ 216.926825][ T6136] el0t_64_sync+0x1a0/0x1a4 [ 216.929176][ T6136] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.931436][ T6136] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.068009][ T6138] loop1: detected capacity change from 0 to 32768 [ 217.101623][ T6138] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.102945][ T6138] CPU: 1 PID: 6138 Comm: syz.1.597 Not tainted syzkaller #0 [ 217.104063][ T6138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.105688][ T6138] Call trace: [ 217.106258][ T6138] dump_backtrace+0x0/0x458 [ 217.106995][ T6138] show_stack+0x2c/0x3c [ 217.107673][ T6138] __dump_stack+0x30/0x40 [ 217.108365][ T6138] dump_stack_lvl+0xf4/0x15c [ 217.109166][ T6138] dump_stack+0x1c/0x5c [ 217.109826][ T6138] sysfs_create_dir_ns+0x244/0x264 [ 217.110653][ T6138] kobject_add_internal+0x5ac/0xc3c [ 217.111529][ T6138] kobject_init_and_add+0x124/0x190 [ 217.112473][ T6138] gfs2_sys_fs_add+0x200/0x41c [ 217.113302][ T6138] gfs2_fill_super+0xddc/0x1a18 [ 217.114085][ T6138] get_tree_bdev+0x358/0x544 [ 217.114845][ T6138] gfs2_get_tree+0x54/0x1b4 [ 217.115567][ T6138] vfs_get_tree+0x90/0x274 [ 217.116354][ T6138] do_new_mount+0x228/0x810 [ 217.117118][ T6138] path_mount+0x5bc/0x1008 [ 217.117810][ T6138] __arm64_sys_mount+0x514/0x5f0 [ 217.118591][ T6138] invoke_syscall+0x98/0x2b0 [ 217.119332][ T6138] el0_svc_common+0x138/0x258 [ 217.120156][ T6138] do_el0_svc+0x58/0x13c [ 217.120872][ T6138] el0_svc+0x78/0x1d0 [ 217.121488][ T6138] el0t_64_sync_handler+0xcc/0xe4 [ 217.122272][ T6138] el0t_64_sync+0x1a0/0x1a4 [ 217.124586][ T6138] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.126789][ T6138] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.266625][ T6140] loop1: detected capacity change from 0 to 32768 [ 217.307323][ T6140] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.308548][ T6140] CPU: 0 PID: 6140 Comm: syz.1.598 Not tainted syzkaller #0 [ 217.309724][ T6140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.311456][ T6140] Call trace: [ 217.312001][ T6140] dump_backtrace+0x0/0x458 [ 217.312787][ T6140] show_stack+0x2c/0x3c [ 217.313436][ T6140] __dump_stack+0x30/0x40 [ 217.314150][ T6140] dump_stack_lvl+0xf4/0x15c [ 217.314942][ T6140] dump_stack+0x1c/0x5c [ 217.315672][ T6140] sysfs_create_dir_ns+0x244/0x264 [ 217.316497][ T6140] kobject_add_internal+0x5ac/0xc3c [ 217.317385][ T6140] kobject_init_and_add+0x124/0x190 [ 217.318266][ T6140] gfs2_sys_fs_add+0x200/0x41c [ 217.319006][ T6140] gfs2_fill_super+0xddc/0x1a18 [ 217.319873][ T6140] get_tree_bdev+0x358/0x544 [ 217.320708][ T6140] gfs2_get_tree+0x54/0x1b4 [ 217.321490][ T6140] vfs_get_tree+0x90/0x274 [ 217.322224][ T6140] do_new_mount+0x228/0x810 [ 217.322947][ T6140] path_mount+0x5bc/0x1008 [ 217.323640][ T6140] __arm64_sys_mount+0x514/0x5f0 [ 217.324421][ T6140] invoke_syscall+0x98/0x2b0 [ 217.325205][ T6140] el0_svc_common+0x138/0x258 [ 217.326040][ T6140] do_el0_svc+0x58/0x13c [ 217.326811][ T6140] el0_svc+0x78/0x1d0 [ 217.327517][ T6140] el0t_64_sync_handler+0xcc/0xe4 [ 217.328328][ T6140] el0t_64_sync+0x1a0/0x1a4 [ 217.331227][ T6140] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.333159][ T6140] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.470742][ T6142] loop1: detected capacity change from 0 to 32768 [ 217.522345][ T6142] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.523566][ T6142] CPU: 1 PID: 6142 Comm: syz.1.599 Not tainted syzkaller #0 [ 217.524782][ T6142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.526289][ T6142] Call trace: [ 217.526809][ T6142] dump_backtrace+0x0/0x458 [ 217.527547][ T6142] show_stack+0x2c/0x3c [ 217.528168][ T6142] __dump_stack+0x30/0x40 [ 217.528880][ T6142] dump_stack_lvl+0xf4/0x15c [ 217.529570][ T6142] dump_stack+0x1c/0x5c [ 217.530262][ T6142] sysfs_create_dir_ns+0x244/0x264 [ 217.531095][ T6142] kobject_add_internal+0x5ac/0xc3c [ 217.531895][ T6142] kobject_init_and_add+0x124/0x190 [ 217.532790][ T6142] gfs2_sys_fs_add+0x200/0x41c [ 217.533610][ T6142] gfs2_fill_super+0xddc/0x1a18 [ 217.534386][ T6142] get_tree_bdev+0x358/0x544 [ 217.535116][ T6142] gfs2_get_tree+0x54/0x1b4 [ 217.535855][ T6142] vfs_get_tree+0x90/0x274 [ 217.536538][ T6142] do_new_mount+0x228/0x810 [ 217.537207][ T6142] path_mount+0x5bc/0x1008 [ 217.537892][ T6142] __arm64_sys_mount+0x514/0x5f0 [ 217.538713][ T6142] invoke_syscall+0x98/0x2b0 [ 217.539516][ T6142] el0_svc_common+0x138/0x258 [ 217.540306][ T6142] do_el0_svc+0x58/0x13c [ 217.541051][ T6142] el0_svc+0x78/0x1d0 [ 217.541652][ T6142] el0t_64_sync_handler+0xcc/0xe4 [ 217.542407][ T6142] el0t_64_sync+0x1a0/0x1a4 [ 217.543272][ T6142] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.545218][ T6142] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.685569][ T6144] loop1: detected capacity change from 0 to 32768 [ 217.694116][ T6144] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.695575][ T6144] CPU: 1 PID: 6144 Comm: syz.1.600 Not tainted syzkaller #0 [ 217.696742][ T6144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.698329][ T6144] Call trace: [ 217.698813][ T6144] dump_backtrace+0x0/0x458 [ 217.699491][ T6144] show_stack+0x2c/0x3c [ 217.700161][ T6144] __dump_stack+0x30/0x40 [ 217.700903][ T6144] dump_stack_lvl+0xf4/0x15c [ 217.701680][ T6144] dump_stack+0x1c/0x5c [ 217.702362][ T6144] sysfs_create_dir_ns+0x244/0x264 [ 217.703199][ T6144] kobject_add_internal+0x5ac/0xc3c [ 217.704197][ T6144] kobject_init_and_add+0x124/0x190 [ 217.705095][ T6144] gfs2_sys_fs_add+0x200/0x41c [ 217.705844][ T6144] gfs2_fill_super+0xddc/0x1a18 [ 217.706642][ T6144] get_tree_bdev+0x358/0x544 [ 217.707363][ T6144] gfs2_get_tree+0x54/0x1b4 [ 217.708103][ T6144] vfs_get_tree+0x90/0x274 [ 217.708818][ T6144] do_new_mount+0x228/0x810 [ 217.709502][ T6144] path_mount+0x5bc/0x1008 [ 217.710176][ T6144] __arm64_sys_mount+0x514/0x5f0 [ 217.711053][ T6144] invoke_syscall+0x98/0x2b0 [ 217.711818][ T6144] el0_svc_common+0x138/0x258 [ 217.712570][ T6144] do_el0_svc+0x58/0x13c [ 217.713248][ T6144] el0_svc+0x78/0x1d0 [ 217.713849][ T6144] el0t_64_sync_handler+0xcc/0xe4 [ 217.714679][ T6144] el0t_64_sync+0x1a0/0x1a4 [ 217.716304][ T6144] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.718337][ T6144] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.891963][ T6146] loop1: detected capacity change from 0 to 32768 [ 217.944246][ T6146] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.945404][ T6146] CPU: 1 PID: 6146 Comm: syz.1.601 Not tainted syzkaller #0 [ 217.946714][ T6146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.948355][ T6146] Call trace: [ 217.948875][ T6146] dump_backtrace+0x0/0x458 [ 217.949629][ T6146] show_stack+0x2c/0x3c [ 217.950312][ T6146] __dump_stack+0x30/0x40 [ 217.951031][ T6146] dump_stack_lvl+0xf4/0x15c [ 217.951771][ T6146] dump_stack+0x1c/0x5c [ 217.952408][ T6146] sysfs_create_dir_ns+0x244/0x264 [ 217.953208][ T6146] kobject_add_internal+0x5ac/0xc3c [ 217.954107][ T6146] kobject_init_and_add+0x124/0x190 [ 217.955037][ T6146] gfs2_sys_fs_add+0x200/0x41c [ 217.955787][ T6146] gfs2_fill_super+0xddc/0x1a18 [ 217.956606][ T6146] get_tree_bdev+0x358/0x544 [ 217.957397][ T6146] gfs2_get_tree+0x54/0x1b4 [ 217.958191][ T6146] vfs_get_tree+0x90/0x274 [ 217.958938][ T6146] do_new_mount+0x228/0x810 [ 217.959754][ T6146] path_mount+0x5bc/0x1008 [ 217.960524][ T6146] __arm64_sys_mount+0x514/0x5f0 [ 217.961371][ T6146] invoke_syscall+0x98/0x2b0 [ 217.962194][ T6146] el0_svc_common+0x138/0x258 [ 217.962949][ T6146] do_el0_svc+0x58/0x13c [ 217.963643][ T6146] el0_svc+0x78/0x1d0 [ 217.964304][ T6146] el0t_64_sync_handler+0xcc/0xe4 [ 217.965145][ T6146] el0t_64_sync+0x1a0/0x1a4 [ 217.966132][ T6146] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.968160][ T6146] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.107763][ T6148] loop1: detected capacity change from 0 to 32768 [ 218.116204][ T6148] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.117504][ T6148] CPU: 0 PID: 6148 Comm: syz.1.602 Not tainted syzkaller #0 [ 218.118665][ T6148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.120248][ T6148] Call trace: [ 218.120777][ T6148] dump_backtrace+0x0/0x458 [ 218.121504][ T6148] show_stack+0x2c/0x3c [ 218.122213][ T6148] __dump_stack+0x30/0x40 [ 218.123024][ T6148] dump_stack_lvl+0xf4/0x15c [ 218.123789][ T6148] dump_stack+0x1c/0x5c [ 218.124460][ T6148] sysfs_create_dir_ns+0x244/0x264 [ 218.125286][ T6148] kobject_add_internal+0x5ac/0xc3c [ 218.126093][ T6148] kobject_init_and_add+0x124/0x190 [ 218.126902][ T6148] gfs2_sys_fs_add+0x200/0x41c [ 218.127728][ T6148] gfs2_fill_super+0xddc/0x1a18 [ 218.128538][ T6148] get_tree_bdev+0x358/0x544 [ 218.129256][ T6148] gfs2_get_tree+0x54/0x1b4 [ 218.130005][ T6148] vfs_get_tree+0x90/0x274 [ 218.130710][ T6148] do_new_mount+0x228/0x810 [ 218.131400][ T6148] path_mount+0x5bc/0x1008 [ 218.132071][ T6148] __arm64_sys_mount+0x514/0x5f0 [ 218.132897][ T6148] invoke_syscall+0x98/0x2b0 [ 218.133662][ T6148] el0_svc_common+0x138/0x258 [ 218.134340][ T6148] do_el0_svc+0x58/0x13c [ 218.134974][ T6148] el0_svc+0x78/0x1d0 [ 218.135577][ T6148] el0t_64_sync_handler+0xcc/0xe4 [ 218.136379][ T6148] el0t_64_sync+0x1a0/0x1a4 [ 218.138966][ T6148] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.141228][ T6148] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.283766][ T6150] loop1: detected capacity change from 0 to 32768 [ 218.292373][ T6150] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.293578][ T6150] CPU: 0 PID: 6150 Comm: syz.1.603 Not tainted syzkaller #0 [ 218.294632][ T6150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.296164][ T6150] Call trace: [ 218.296662][ T6150] dump_backtrace+0x0/0x458 [ 218.297360][ T6150] show_stack+0x2c/0x3c [ 218.298008][ T6150] __dump_stack+0x30/0x40 [ 218.298684][ T6150] dump_stack_lvl+0xf4/0x15c [ 218.299466][ T6150] dump_stack+0x1c/0x5c [ 218.300136][ T6150] sysfs_create_dir_ns+0x244/0x264 [ 218.300958][ T6150] kobject_add_internal+0x5ac/0xc3c [ 218.301752][ T6150] kobject_init_and_add+0x124/0x190 [ 218.302553][ T6150] gfs2_sys_fs_add+0x200/0x41c [ 218.303356][ T6150] gfs2_fill_super+0xddc/0x1a18 [ 218.304109][ T6150] get_tree_bdev+0x358/0x544 [ 218.304837][ T6150] gfs2_get_tree+0x54/0x1b4 [ 218.305556][ T6150] vfs_get_tree+0x90/0x274 [ 218.306214][ T6150] do_new_mount+0x228/0x810 [ 218.306922][ T6150] path_mount+0x5bc/0x1008 [ 218.307637][ T6150] __arm64_sys_mount+0x514/0x5f0 [ 218.308416][ T6150] invoke_syscall+0x98/0x2b0 [ 218.309178][ T6150] el0_svc_common+0x138/0x258 [ 218.309912][ T6150] do_el0_svc+0x58/0x13c [ 218.310578][ T6150] el0_svc+0x78/0x1d0 [ 218.311196][ T6150] el0t_64_sync_handler+0xcc/0xe4 [ 218.312005][ T6150] el0t_64_sync+0x1a0/0x1a4 [ 218.315072][ T6150] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.317281][ T6150] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.506348][ T6152] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.507496][ T6152] CPU: 0 PID: 6152 Comm: syz.1.604 Not tainted syzkaller #0 [ 218.508689][ T6152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.510391][ T6152] Call trace: [ 218.510947][ T6152] dump_backtrace+0x0/0x458 [ 218.511739][ T6152] show_stack+0x2c/0x3c [ 218.512442][ T6152] __dump_stack+0x30/0x40 [ 218.513204][ T6152] dump_stack_lvl+0xf4/0x15c [ 218.513983][ T6152] dump_stack+0x1c/0x5c [ 218.514698][ T6152] sysfs_create_dir_ns+0x244/0x264 [ 218.515603][ T6152] kobject_add_internal+0x5ac/0xc3c [ 218.516475][ T6152] kobject_init_and_add+0x124/0x190 [ 218.517300][ T6152] gfs2_sys_fs_add+0x200/0x41c [ 218.518157][ T6152] gfs2_fill_super+0xddc/0x1a18 [ 218.518916][ T6152] get_tree_bdev+0x358/0x544 [ 218.519611][ T6152] gfs2_get_tree+0x54/0x1b4 [ 218.520315][ T6152] vfs_get_tree+0x90/0x274 [ 218.521043][ T6152] do_new_mount+0x228/0x810 [ 218.521755][ T6152] path_mount+0x5bc/0x1008 [ 218.522448][ T6152] __arm64_sys_mount+0x514/0x5f0 [ 218.523223][ T6152] invoke_syscall+0x98/0x2b0 [ 218.523920][ T6152] el0_svc_common+0x138/0x258 [ 218.524663][ T6152] do_el0_svc+0x58/0x13c [ 218.525313][ T6152] el0_svc+0x78/0x1d0 [ 218.525919][ T6152] el0t_64_sync_handler+0xcc/0xe4 [ 218.526744][ T6152] el0t_64_sync+0x1a0/0x1a4 [ 218.529002][ T6152] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.531627][ T6152] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.720918][ T6154] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.722142][ T6154] CPU: 0 PID: 6154 Comm: syz.1.605 Not tainted syzkaller #0 [ 218.723395][ T6154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.725081][ T6154] Call trace: [ 218.725650][ T6154] dump_backtrace+0x0/0x458 [ 218.726399][ T6154] show_stack+0x2c/0x3c [ 218.727078][ T6154] __dump_stack+0x30/0x40 [ 218.727756][ T6154] dump_stack_lvl+0xf4/0x15c [ 218.728471][ T6154] dump_stack+0x1c/0x5c [ 218.729182][ T6154] sysfs_create_dir_ns+0x244/0x264 [ 218.729953][ T6154] kobject_add_internal+0x5ac/0xc3c [ 218.730767][ T6154] kobject_init_and_add+0x124/0x190 [ 218.731583][ T6154] gfs2_sys_fs_add+0x200/0x41c [ 218.732332][ T6154] gfs2_fill_super+0xddc/0x1a18 [ 218.733101][ T6154] get_tree_bdev+0x358/0x544 [ 218.733819][ T6154] gfs2_get_tree+0x54/0x1b4 [ 218.734517][ T6154] vfs_get_tree+0x90/0x274 [ 218.735217][ T6154] do_new_mount+0x228/0x810 [ 218.735892][ T6154] path_mount+0x5bc/0x1008 [ 218.736571][ T6154] __arm64_sys_mount+0x514/0x5f0 [ 218.737349][ T6154] invoke_syscall+0x98/0x2b0 [ 218.738040][ T6154] el0_svc_common+0x138/0x258 [ 218.738808][ T6154] do_el0_svc+0x58/0x13c [ 218.739449][ T6154] el0_svc+0x78/0x1d0 [ 218.740149][ T6154] el0t_64_sync_handler+0xcc/0xe4 [ 218.741054][ T6154] el0t_64_sync+0x1a0/0x1a4 [ 218.743545][ T6154] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.745635][ T6154] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.944738][ T6156] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.946137][ T6156] CPU: 1 PID: 6156 Comm: syz.1.606 Not tainted syzkaller #0 [ 218.947253][ T6156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.948810][ T6156] Call trace: [ 218.949344][ T6156] dump_backtrace+0x0/0x458 [ 218.950061][ T6156] show_stack+0x2c/0x3c [ 218.950724][ T6156] __dump_stack+0x30/0x40 [ 218.951399][ T6156] dump_stack_lvl+0xf4/0x15c [ 218.952154][ T6156] dump_stack+0x1c/0x5c [ 218.952797][ T6156] sysfs_create_dir_ns+0x244/0x264 [ 218.953643][ T6156] kobject_add_internal+0x5ac/0xc3c [ 218.954499][ T6156] kobject_init_and_add+0x124/0x190 [ 218.955349][ T6156] gfs2_sys_fs_add+0x200/0x41c [ 218.956163][ T6156] gfs2_fill_super+0xddc/0x1a18 [ 218.956968][ T6156] get_tree_bdev+0x358/0x544 [ 218.957701][ T6156] gfs2_get_tree+0x54/0x1b4 [ 218.958495][ T6156] vfs_get_tree+0x90/0x274 [ 218.959277][ T6156] do_new_mount+0x228/0x810 [ 218.960023][ T6156] path_mount+0x5bc/0x1008 [ 218.960740][ T6156] __arm64_sys_mount+0x514/0x5f0 [ 218.961586][ T6156] invoke_syscall+0x98/0x2b0 [ 218.962309][ T6156] el0_svc_common+0x138/0x258 [ 218.963107][ T6156] do_el0_svc+0x58/0x13c [ 218.963804][ T6156] el0_svc+0x78/0x1d0 [ 218.964441][ T6156] el0t_64_sync_handler+0xcc/0xe4 [ 218.965325][ T6156] el0t_64_sync+0x1a0/0x1a4 [ 218.966295][ T6156] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.968507][ T6156] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.141877][ T6158] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.143078][ T6158] CPU: 0 PID: 6158 Comm: syz.1.607 Not tainted syzkaller #0 [ 219.144126][ T6158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.145557][ T6158] Call trace: [ 219.146169][ T6158] dump_backtrace+0x0/0x458 [ 219.146966][ T6158] show_stack+0x2c/0x3c [ 219.147622][ T6158] __dump_stack+0x30/0x40 [ 219.148304][ T6158] dump_stack_lvl+0xf4/0x15c [ 219.149048][ T6158] dump_stack+0x1c/0x5c [ 219.149660][ T6158] sysfs_create_dir_ns+0x244/0x264 [ 219.150471][ T6158] kobject_add_internal+0x5ac/0xc3c [ 219.151351][ T6158] kobject_init_and_add+0x124/0x190 [ 219.152179][ T6158] gfs2_sys_fs_add+0x200/0x41c [ 219.152991][ T6158] gfs2_fill_super+0xddc/0x1a18 [ 219.153827][ T6158] get_tree_bdev+0x358/0x544 [ 219.154542][ T6158] gfs2_get_tree+0x54/0x1b4 [ 219.155287][ T6158] vfs_get_tree+0x90/0x274 [ 219.156030][ T6158] do_new_mount+0x228/0x810 [ 219.156755][ T6158] path_mount+0x5bc/0x1008 [ 219.157470][ T6158] __arm64_sys_mount+0x514/0x5f0 [ 219.158224][ T6158] invoke_syscall+0x98/0x2b0 [ 219.158938][ T6158] el0_svc_common+0x138/0x258 [ 219.159698][ T6158] do_el0_svc+0x58/0x13c [ 219.160319][ T6158] el0_svc+0x78/0x1d0 [ 219.160914][ T6158] el0t_64_sync_handler+0xcc/0xe4 [ 219.161628][ T6158] el0t_64_sync+0x1a0/0x1a4 [ 219.162700][ T6158] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.164735][ T6158] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.315777][ T6160] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.317029][ T6160] CPU: 0 PID: 6160 Comm: syz.1.608 Not tainted syzkaller #0 [ 219.318117][ T6160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.319665][ T6160] Call trace: [ 219.320174][ T6160] dump_backtrace+0x0/0x458 [ 219.320884][ T6160] show_stack+0x2c/0x3c [ 219.321523][ T6160] __dump_stack+0x30/0x40 [ 219.322211][ T6160] dump_stack_lvl+0xf4/0x15c [ 219.322929][ T6160] dump_stack+0x1c/0x5c [ 219.323579][ T6160] sysfs_create_dir_ns+0x244/0x264 [ 219.324392][ T6160] kobject_add_internal+0x5ac/0xc3c [ 219.325212][ T6160] kobject_init_and_add+0x124/0x190 [ 219.326122][ T6160] gfs2_sys_fs_add+0x200/0x41c [ 219.327043][ T6160] gfs2_fill_super+0xddc/0x1a18 [ 219.327880][ T6160] get_tree_bdev+0x358/0x544 [ 219.328683][ T6160] gfs2_get_tree+0x54/0x1b4 [ 219.329386][ T6160] vfs_get_tree+0x90/0x274 [ 219.330175][ T6160] do_new_mount+0x228/0x810 [ 219.330914][ T6160] path_mount+0x5bc/0x1008 [ 219.331631][ T6160] __arm64_sys_mount+0x514/0x5f0 [ 219.332410][ T6160] invoke_syscall+0x98/0x2b0 [ 219.333208][ T6160] el0_svc_common+0x138/0x258 [ 219.334020][ T6160] do_el0_svc+0x58/0x13c [ 219.334756][ T6160] el0_svc+0x78/0x1d0 [ 219.335426][ T6160] el0t_64_sync_handler+0xcc/0xe4 [ 219.336316][ T6160] el0t_64_sync+0x1a0/0x1a4 [ 219.337259][ T6160] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.339466][ T6160] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.486452][ T6162] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.487811][ T6162] CPU: 1 PID: 6162 Comm: syz.1.609 Not tainted syzkaller #0 [ 219.489052][ T6162] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.490802][ T6162] Call trace: [ 219.491384][ T6162] dump_backtrace+0x0/0x458 [ 219.492151][ T6162] show_stack+0x2c/0x3c [ 219.492822][ T6162] __dump_stack+0x30/0x40 [ 219.493562][ T6162] dump_stack_lvl+0xf4/0x15c [ 219.494335][ T6162] dump_stack+0x1c/0x5c [ 219.495019][ T6162] sysfs_create_dir_ns+0x244/0x264 [ 219.495867][ T6162] kobject_add_internal+0x5ac/0xc3c [ 219.496832][ T6162] kobject_init_and_add+0x124/0x190 [ 219.497733][ T6162] gfs2_sys_fs_add+0x200/0x41c [ 219.498600][ T6162] gfs2_fill_super+0xddc/0x1a18 [ 219.499387][ T6162] get_tree_bdev+0x358/0x544 [ 219.500146][ T6162] gfs2_get_tree+0x54/0x1b4 [ 219.500937][ T6162] vfs_get_tree+0x90/0x274 [ 219.501681][ T6162] do_new_mount+0x228/0x810 [ 219.502482][ T6162] path_mount+0x5bc/0x1008 [ 219.503204][ T6162] __arm64_sys_mount+0x514/0x5f0 [ 219.504026][ T6162] invoke_syscall+0x98/0x2b0 [ 219.504822][ T6162] el0_svc_common+0x138/0x258 [ 219.505600][ T6162] do_el0_svc+0x58/0x13c [ 219.506303][ T6162] el0_svc+0x78/0x1d0 [ 219.506965][ T6162] el0t_64_sync_handler+0xcc/0xe4 [ 219.507944][ T6162] el0t_64_sync+0x1a0/0x1a4 [ 219.510193][ T6162] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.512514][ T6162] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.754372][ T6164] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.755663][ T6164] CPU: 0 PID: 6164 Comm: syz.1.610 Not tainted syzkaller #0 [ 219.756847][ T6164] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.758503][ T6164] Call trace: [ 219.759067][ T6164] dump_backtrace+0x0/0x458 [ 219.759811][ T6164] show_stack+0x2c/0x3c [ 219.760539][ T6164] __dump_stack+0x30/0x40 [ 219.761267][ T6164] dump_stack_lvl+0xf4/0x15c [ 219.762039][ T6164] dump_stack+0x1c/0x5c [ 219.762785][ T6164] sysfs_create_dir_ns+0x244/0x264 [ 219.763696][ T6164] kobject_add_internal+0x5ac/0xc3c [ 219.764640][ T6164] kobject_init_and_add+0x124/0x190 [ 219.765551][ T6164] gfs2_sys_fs_add+0x200/0x41c [ 219.766376][ T6164] gfs2_fill_super+0xddc/0x1a18 [ 219.767176][ T6164] get_tree_bdev+0x358/0x544 [ 219.767940][ T6164] gfs2_get_tree+0x54/0x1b4 [ 219.768702][ T6164] vfs_get_tree+0x90/0x274 [ 219.769441][ T6164] do_new_mount+0x228/0x810 [ 219.770152][ T6164] path_mount+0x5bc/0x1008 [ 219.770845][ T6164] __arm64_sys_mount+0x514/0x5f0 [ 219.771544][ T6164] invoke_syscall+0x98/0x2b0 [ 219.772359][ T6164] el0_svc_common+0x138/0x258 [ 219.773137][ T6164] do_el0_svc+0x58/0x13c [ 219.773886][ T6164] el0_svc+0x78/0x1d0 [ 219.774576][ T6164] el0t_64_sync_handler+0xcc/0xe4 [ 219.775451][ T6164] el0t_64_sync+0x1a0/0x1a4 [ 219.777875][ T6164] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.780022][ T6164] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.924908][ T6166] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.926136][ T6166] CPU: 0 PID: 6166 Comm: syz.1.611 Not tainted syzkaller #0 [ 219.927347][ T6166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.929052][ T6166] Call trace: [ 219.929618][ T6166] dump_backtrace+0x0/0x458 [ 219.930385][ T6166] show_stack+0x2c/0x3c [ 219.931065][ T6166] __dump_stack+0x30/0x40 [ 219.931796][ T6166] dump_stack_lvl+0xf4/0x15c [ 219.932585][ T6166] dump_stack+0x1c/0x5c [ 219.933299][ T6166] sysfs_create_dir_ns+0x244/0x264 [ 219.934144][ T6166] kobject_add_internal+0x5ac/0xc3c [ 219.934950][ T6166] kobject_init_and_add+0x124/0x190 [ 219.935758][ T6166] gfs2_sys_fs_add+0x200/0x41c [ 219.936525][ T6166] gfs2_fill_super+0xddc/0x1a18 [ 219.937259][ T6166] get_tree_bdev+0x358/0x544 [ 219.937956][ T6166] gfs2_get_tree+0x54/0x1b4 [ 219.938668][ T6166] vfs_get_tree+0x90/0x274 [ 219.939391][ T6166] do_new_mount+0x228/0x810 [ 219.940105][ T6166] path_mount+0x5bc/0x1008 [ 219.940854][ T6166] __arm64_sys_mount+0x514/0x5f0 [ 219.941645][ T6166] invoke_syscall+0x98/0x2b0 [ 219.942450][ T6166] el0_svc_common+0x138/0x258 [ 219.943205][ T6166] do_el0_svc+0x58/0x13c [ 219.943832][ T6166] el0_svc+0x78/0x1d0 [ 219.944491][ T6166] el0t_64_sync_handler+0xcc/0xe4 [ 219.945325][ T6166] el0t_64_sync+0x1a0/0x1a4 [ 219.946783][ T6166] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.948878][ T6166] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.142937][ T6168] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.144160][ T6168] CPU: 1 PID: 6168 Comm: syz.1.612 Not tainted syzkaller #0 [ 220.145334][ T6168] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.146853][ T6168] Call trace: [ 220.147344][ T6168] dump_backtrace+0x0/0x458 [ 220.148065][ T6168] show_stack+0x2c/0x3c [ 220.148745][ T6168] __dump_stack+0x30/0x40 [ 220.149456][ T6168] dump_stack_lvl+0xf4/0x15c [ 220.150208][ T6168] dump_stack+0x1c/0x5c [ 220.150969][ T6168] sysfs_create_dir_ns+0x244/0x264 [ 220.151811][ T6168] kobject_add_internal+0x5ac/0xc3c [ 220.152720][ T6168] kobject_init_and_add+0x124/0x190 [ 220.153524][ T6168] gfs2_sys_fs_add+0x200/0x41c [ 220.154291][ T6168] gfs2_fill_super+0xddc/0x1a18 [ 220.155077][ T6168] get_tree_bdev+0x358/0x544 [ 220.155866][ T6168] gfs2_get_tree+0x54/0x1b4 [ 220.156614][ T6168] vfs_get_tree+0x90/0x274 [ 220.157323][ T6168] do_new_mount+0x228/0x810 [ 220.158094][ T6168] path_mount+0x5bc/0x1008 [ 220.158787][ T6168] __arm64_sys_mount+0x514/0x5f0 [ 220.159664][ T6168] invoke_syscall+0x98/0x2b0 [ 220.160528][ T6168] el0_svc_common+0x138/0x258 [ 220.161330][ T6168] do_el0_svc+0x58/0x13c [ 220.162046][ T6168] el0_svc+0x78/0x1d0 [ 220.162710][ T6168] el0t_64_sync_handler+0xcc/0xe4 [ 220.163541][ T6168] el0t_64_sync+0x1a0/0x1a4 [ 220.165733][ T6168] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.167844][ T6168] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.381830][ T6170] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.383074][ T6170] CPU: 0 PID: 6170 Comm: syz.1.613 Not tainted syzkaller #0 [ 220.384245][ T6170] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.385813][ T6170] Call trace: [ 220.386326][ T6170] dump_backtrace+0x0/0x458 [ 220.387062][ T6170] show_stack+0x2c/0x3c [ 220.387745][ T6170] __dump_stack+0x30/0x40 [ 220.388451][ T6170] dump_stack_lvl+0xf4/0x15c [ 220.389236][ T6170] dump_stack+0x1c/0x5c [ 220.389939][ T6170] sysfs_create_dir_ns+0x244/0x264 [ 220.390853][ T6170] kobject_add_internal+0x5ac/0xc3c [ 220.391770][ T6170] kobject_init_and_add+0x124/0x190 [ 220.392588][ T6170] gfs2_sys_fs_add+0x200/0x41c [ 220.393344][ T6170] gfs2_fill_super+0xddc/0x1a18 [ 220.394156][ T6170] get_tree_bdev+0x358/0x544 [ 220.394855][ T6170] gfs2_get_tree+0x54/0x1b4 [ 220.395559][ T6170] vfs_get_tree+0x90/0x274 [ 220.396242][ T6170] do_new_mount+0x228/0x810 [ 220.396920][ T6170] path_mount+0x5bc/0x1008 [ 220.397606][ T6170] __arm64_sys_mount+0x514/0x5f0 [ 220.398344][ T6170] invoke_syscall+0x98/0x2b0 [ 220.399061][ T6170] el0_svc_common+0x138/0x258 [ 220.399876][ T6170] do_el0_svc+0x58/0x13c [ 220.400623][ T6170] el0_svc+0x78/0x1d0 [ 220.401280][ T6170] el0t_64_sync_handler+0xcc/0xe4 [ 220.402098][ T6170] el0t_64_sync+0x1a0/0x1a4 [ 220.405571][ T6170] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.407610][ T6170] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.651199][ T6172] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.652409][ T6172] CPU: 0 PID: 6172 Comm: syz.1.614 Not tainted syzkaller #0 [ 220.653473][ T6172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.655000][ T6172] Call trace: [ 220.655487][ T6172] dump_backtrace+0x0/0x458 [ 220.656167][ T6172] show_stack+0x2c/0x3c [ 220.656776][ T6172] __dump_stack+0x30/0x40 [ 220.657475][ T6172] dump_stack_lvl+0xf4/0x15c [ 220.658144][ T6172] dump_stack+0x1c/0x5c [ 220.658803][ T6172] sysfs_create_dir_ns+0x244/0x264 [ 220.659571][ T6172] kobject_add_internal+0x5ac/0xc3c [ 220.660352][ T6172] kobject_init_and_add+0x124/0x190 [ 220.661276][ T6172] gfs2_sys_fs_add+0x200/0x41c [ 220.662075][ T6172] gfs2_fill_super+0xddc/0x1a18 [ 220.662812][ T6172] get_tree_bdev+0x358/0x544 [ 220.663546][ T6172] gfs2_get_tree+0x54/0x1b4 [ 220.664260][ T6172] vfs_get_tree+0x90/0x274 [ 220.664962][ T6172] do_new_mount+0x228/0x810 [ 220.665701][ T6172] path_mount+0x5bc/0x1008 [ 220.666503][ T6172] __arm64_sys_mount+0x514/0x5f0 [ 220.667285][ T6172] invoke_syscall+0x98/0x2b0 [ 220.668041][ T6172] el0_svc_common+0x138/0x258 [ 220.668783][ T6172] do_el0_svc+0x58/0x13c [ 220.669550][ T6172] el0_svc+0x78/0x1d0 [ 220.670264][ T6172] el0t_64_sync_handler+0xcc/0xe4 [ 220.671146][ T6172] el0t_64_sync+0x1a0/0x1a4 [ 220.672666][ T6172] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.674652][ T6172] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.871256][ T6174] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.872665][ T6174] CPU: 0 PID: 6174 Comm: syz.1.615 Not tainted syzkaller #0 [ 220.873748][ T6174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.875381][ T6174] Call trace: [ 220.875906][ T6174] dump_backtrace+0x0/0x458 [ 220.876626][ T6174] show_stack+0x2c/0x3c [ 220.877308][ T6174] __dump_stack+0x30/0x40 [ 220.878020][ T6174] dump_stack_lvl+0xf4/0x15c [ 220.878769][ T6174] dump_stack+0x1c/0x5c [ 220.879459][ T6174] sysfs_create_dir_ns+0x244/0x264 [ 220.880274][ T6174] kobject_add_internal+0x5ac/0xc3c [ 220.881144][ T6174] kobject_init_and_add+0x124/0x190 [ 220.881996][ T6174] gfs2_sys_fs_add+0x200/0x41c [ 220.882818][ T6174] gfs2_fill_super+0xddc/0x1a18 [ 220.883583][ T6174] get_tree_bdev+0x358/0x544 [ 220.884316][ T6174] gfs2_get_tree+0x54/0x1b4 [ 220.885045][ T6174] vfs_get_tree+0x90/0x274 [ 220.885754][ T6174] do_new_mount+0x228/0x810 [ 220.886437][ T6174] path_mount+0x5bc/0x1008 [ 220.887118][ T6174] __arm64_sys_mount+0x514/0x5f0 [ 220.887906][ T6174] invoke_syscall+0x98/0x2b0 [ 220.888688][ T6174] el0_svc_common+0x138/0x258 [ 220.889487][ T6174] do_el0_svc+0x58/0x13c [ 220.890196][ T6174] el0_svc+0x78/0x1d0 [ 220.890838][ T6174] el0t_64_sync_handler+0xcc/0xe4 [ 220.891757][ T6174] el0t_64_sync+0x1a0/0x1a4 [ 220.892850][ T6174] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.894831][ T6174] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.131403][ T6176] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.132659][ T6176] CPU: 0 PID: 6176 Comm: syz.1.616 Not tainted syzkaller #0 [ 221.133780][ T6176] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.135330][ T6176] Call trace: [ 221.135873][ T6176] dump_backtrace+0x0/0x458 [ 221.136578][ T6176] show_stack+0x2c/0x3c [ 221.137270][ T6176] __dump_stack+0x30/0x40 [ 221.138026][ T6176] dump_stack_lvl+0xf4/0x15c [ 221.138806][ T6176] dump_stack+0x1c/0x5c [ 221.139462][ T6176] sysfs_create_dir_ns+0x244/0x264 [ 221.140294][ T6176] kobject_add_internal+0x5ac/0xc3c [ 221.141141][ T6176] kobject_init_and_add+0x124/0x190 [ 221.141961][ T6176] gfs2_sys_fs_add+0x200/0x41c [ 221.142745][ T6176] gfs2_fill_super+0xddc/0x1a18 [ 221.143539][ T6176] get_tree_bdev+0x358/0x544 [ 221.144277][ T6176] gfs2_get_tree+0x54/0x1b4 [ 221.145017][ T6176] vfs_get_tree+0x90/0x274 [ 221.145764][ T6176] do_new_mount+0x228/0x810 [ 221.146508][ T6176] path_mount+0x5bc/0x1008 [ 221.147246][ T6176] __arm64_sys_mount+0x514/0x5f0 [ 221.148139][ T6176] invoke_syscall+0x98/0x2b0 [ 221.148932][ T6176] el0_svc_common+0x138/0x258 [ 221.149719][ T6176] do_el0_svc+0x58/0x13c [ 221.150419][ T6176] el0_svc+0x78/0x1d0 [ 221.151012][ T6176] el0t_64_sync_handler+0xcc/0xe4 [ 221.151787][ T6176] el0t_64_sync+0x1a0/0x1a4 [ 221.153567][ T6176] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.155625][ T6176] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:41 executed programs: 602 [ 221.336120][ T6178] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.337264][ T6178] CPU: 0 PID: 6178 Comm: syz.1.617 Not tainted syzkaller #0 [ 221.338308][ T6178] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.340025][ T6178] Call trace: [ 221.340559][ T6178] dump_backtrace+0x0/0x458 [ 221.341320][ T6178] show_stack+0x2c/0x3c [ 221.342050][ T6178] __dump_stack+0x30/0x40 [ 221.342792][ T6178] dump_stack_lvl+0xf4/0x15c [ 221.343570][ T6178] dump_stack+0x1c/0x5c [ 221.344222][ T6178] sysfs_create_dir_ns+0x244/0x264 [ 221.345071][ T6178] kobject_add_internal+0x5ac/0xc3c [ 221.345953][ T6178] kobject_init_and_add+0x124/0x190 [ 221.346798][ T6178] gfs2_sys_fs_add+0x200/0x41c [ 221.347590][ T6178] gfs2_fill_super+0xddc/0x1a18 [ 221.348413][ T6178] get_tree_bdev+0x358/0x544 [ 221.349152][ T6178] gfs2_get_tree+0x54/0x1b4 [ 221.349904][ T6178] vfs_get_tree+0x90/0x274 [ 221.350676][ T6178] do_new_mount+0x228/0x810 [ 221.351458][ T6178] path_mount+0x5bc/0x1008 [ 221.352188][ T6178] __arm64_sys_mount+0x514/0x5f0 [ 221.352984][ T6178] invoke_syscall+0x98/0x2b0 [ 221.353769][ T6178] el0_svc_common+0x138/0x258 [ 221.354557][ T6178] do_el0_svc+0x58/0x13c [ 221.355227][ T6178] el0_svc+0x78/0x1d0 [ 221.355832][ T6178] el0t_64_sync_handler+0xcc/0xe4 [ 221.356620][ T6178] el0t_64_sync+0x1a0/0x1a4 [ 221.357817][ T6178] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.359921][ T6178] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.437893][ T6180] chnl_net:caif_netlink_parms(): no params data found [ 221.461058][ T6180] bridge0: port 1(bridge_slave_0) entered blocking state [ 221.462187][ T6180] bridge0: port 1(bridge_slave_0) entered disabled state [ 221.463730][ T6180] device bridge_slave_0 entered promiscuous mode [ 221.465927][ T6180] bridge0: port 2(bridge_slave_1) entered blocking state [ 221.467089][ T6180] bridge0: port 2(bridge_slave_1) entered disabled state [ 221.468609][ T6180] device bridge_slave_1 entered promiscuous mode [ 221.477527][ T6180] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 221.480108][ T6180] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 221.488776][ T6180] team0: Port device team_slave_0 added [ 221.491106][ T6180] team0: Port device team_slave_1 added [ 221.497925][ T6180] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 221.498980][ T6180] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 221.503569][ T6180] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 221.506009][ T6180] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 221.507088][ T6180] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 221.511204][ T6180] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 221.592967][ T6180] device hsr_slave_0 entered promiscuous mode [ 221.640067][ T6180] device hsr_slave_1 entered promiscuous mode [ 221.689601][ T6180] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 221.690896][ T6180] Cannot create hsr debugfs directory [ 221.731419][ T6180] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 222.163973][ T6180] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 222.208886][ T6180] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 222.244200][ T6180] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 222.383335][ T6180] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 222.437810][ T6180] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 222.473631][ T6180] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 222.513694][ T6180] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 222.607637][ T6180] 8021q: adding VLAN 0 to HW filter on device bond0 [ 222.611824][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 222.613406][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 222.616183][ T6180] 8021q: adding VLAN 0 to HW filter on device team0 [ 222.618779][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 222.621128][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 222.622650][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 222.623732][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 222.625067][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 222.634786][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 222.636397][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 222.637815][ T1636] bridge0: port 2(bridge_slave_1) entered blocking state [ 222.638932][ T1636] bridge0: port 2(bridge_slave_1) entered forwarding state [ 222.641986][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 222.645339][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 222.648274][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 222.652709][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 222.654859][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 222.657755][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 222.659668][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 222.662500][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 222.664051][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 222.666747][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 222.668236][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 222.671798][ T6180] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 222.713485][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 222.714768][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 222.718220][ T6180] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 222.727138][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 222.728819][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 222.737595][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 222.739114][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 222.740766][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 222.742141][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 222.744509][ T6180] device veth0_vlan entered promiscuous mode [ 222.748005][ T6180] device veth1_vlan entered promiscuous mode [ 222.761341][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 222.762929][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 222.764437][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 222.765960][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 222.768707][ T6180] device veth0_macvtap entered promiscuous mode [ 222.771900][ T6180] device veth1_macvtap entered promiscuous mode [ 222.776994][ T6180] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 222.778612][ T6180] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 222.780605][ T6180] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 222.782223][ T6180] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 222.784526][ T6180] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 222.785848][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 222.787445][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 222.788877][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 222.791155][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 222.793835][ T6180] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 222.795579][ T6180] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 222.797314][ T6180] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 222.799067][ T6180] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 222.801372][ T6180] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 222.802596][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 222.804444][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 222.807158][ T6180] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 222.808529][ T6180] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 222.811530][ T6180] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 222.812880][ T6180] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 222.841456][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 222.842778][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 222.844076][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 222.854946][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 222.856282][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 222.857649][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 223.005882][ T6192] set_capacity_and_notify: 14 callbacks suppressed [ 223.005893][ T6192] loop1: detected capacity change from 0 to 32768 [ 223.054258][ T6192] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.055534][ T6192] CPU: 1 PID: 6192 Comm: syz.1.618 Not tainted syzkaller #0 [ 223.056654][ T6192] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.058222][ T6192] Call trace: [ 223.058724][ T6192] dump_backtrace+0x0/0x458 [ 223.059468][ T6192] show_stack+0x2c/0x3c [ 223.060158][ T6192] __dump_stack+0x30/0x40 [ 223.060847][ T6192] dump_stack_lvl+0xf4/0x15c [ 223.061575][ T6192] dump_stack+0x1c/0x5c [ 223.062222][ T6192] sysfs_create_dir_ns+0x244/0x264 [ 223.063029][ T6192] kobject_add_internal+0x5ac/0xc3c [ 223.063793][ T6192] kobject_init_and_add+0x124/0x190 [ 223.064674][ T6192] gfs2_sys_fs_add+0x200/0x41c [ 223.065479][ T6192] gfs2_fill_super+0xddc/0x1a18 [ 223.066281][ T6192] get_tree_bdev+0x358/0x544 [ 223.067037][ T6192] gfs2_get_tree+0x54/0x1b4 [ 223.067772][ T6192] vfs_get_tree+0x90/0x274 [ 223.068476][ T6192] do_new_mount+0x228/0x810 [ 223.069175][ T6192] path_mount+0x5bc/0x1008 [ 223.069928][ T6192] __arm64_sys_mount+0x514/0x5f0 [ 223.070806][ T6192] invoke_syscall+0x98/0x2b0 [ 223.071582][ T6192] el0_svc_common+0x138/0x258 [ 223.072352][ T6192] do_el0_svc+0x58/0x13c [ 223.073011][ T6192] el0_svc+0x78/0x1d0 [ 223.073619][ T6192] el0t_64_sync_handler+0xcc/0xe4 [ 223.074387][ T6192] el0t_64_sync+0x1a0/0x1a4 [ 223.076654][ T6192] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.078573][ T6192] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.221441][ T6194] loop1: detected capacity change from 0 to 32768 [ 223.312732][ T6194] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.313960][ T6194] CPU: 0 PID: 6194 Comm: syz.1.619 Not tainted syzkaller #0 [ 223.315259][ T6194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.316809][ T6194] Call trace: [ 223.317316][ T6194] dump_backtrace+0x0/0x458 [ 223.318032][ T6194] show_stack+0x2c/0x3c [ 223.318654][ T6194] __dump_stack+0x30/0x40 [ 223.319340][ T6194] dump_stack_lvl+0xf4/0x15c [ 223.320053][ T6194] dump_stack+0x1c/0x5c [ 223.320725][ T6194] sysfs_create_dir_ns+0x244/0x264 [ 223.321561][ T6194] kobject_add_internal+0x5ac/0xc3c [ 223.322338][ T6194] kobject_init_and_add+0x124/0x190 [ 223.323158][ T6194] gfs2_sys_fs_add+0x200/0x41c [ 223.323899][ T6194] gfs2_fill_super+0xddc/0x1a18 [ 223.324678][ T6194] get_tree_bdev+0x358/0x544 [ 223.325360][ T6194] gfs2_get_tree+0x54/0x1b4 [ 223.326022][ T6194] vfs_get_tree+0x90/0x274 [ 223.326711][ T6194] do_new_mount+0x228/0x810 [ 223.327441][ T6194] path_mount+0x5bc/0x1008 [ 223.328129][ T6194] __arm64_sys_mount+0x514/0x5f0 [ 223.328898][ T6194] invoke_syscall+0x98/0x2b0 [ 223.329681][ T6194] el0_svc_common+0x138/0x258 [ 223.330425][ T6194] do_el0_svc+0x58/0x13c [ 223.331064][ T6194] el0_svc+0x78/0x1d0 [ 223.331708][ T6194] el0t_64_sync_handler+0xcc/0xe4 [ 223.332482][ T6194] el0t_64_sync+0x1a0/0x1a4 [ 223.334789][ T6194] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.336779][ T6194] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.449765][ T4941] Bluetooth: hci2: command 0x0409 tx timeout [ 223.485287][ T6196] loop1: detected capacity change from 0 to 32768 [ 223.528089][ T6196] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.529299][ T6196] CPU: 1 PID: 6196 Comm: syz.1.620 Not tainted syzkaller #0 [ 223.530424][ T6196] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.532153][ T6196] Call trace: [ 223.532718][ T6196] dump_backtrace+0x0/0x458 [ 223.533486][ T6196] show_stack+0x2c/0x3c [ 223.534203][ T6196] __dump_stack+0x30/0x40 [ 223.534943][ T6196] dump_stack_lvl+0xf4/0x15c [ 223.535723][ T6196] dump_stack+0x1c/0x5c [ 223.536416][ T6196] sysfs_create_dir_ns+0x244/0x264 [ 223.537296][ T6196] kobject_add_internal+0x5ac/0xc3c [ 223.538149][ T6196] kobject_init_and_add+0x124/0x190 [ 223.538999][ T6196] gfs2_sys_fs_add+0x200/0x41c [ 223.539781][ T6196] gfs2_fill_super+0xddc/0x1a18 [ 223.540601][ T6196] get_tree_bdev+0x358/0x544 [ 223.541395][ T6196] gfs2_get_tree+0x54/0x1b4 [ 223.542096][ T6196] vfs_get_tree+0x90/0x274 [ 223.542797][ T6196] do_new_mount+0x228/0x810 [ 223.543543][ T6196] path_mount+0x5bc/0x1008 [ 223.544296][ T6196] __arm64_sys_mount+0x514/0x5f0 [ 223.545092][ T6196] invoke_syscall+0x98/0x2b0 [ 223.545885][ T6196] el0_svc_common+0x138/0x258 [ 223.546693][ T6196] do_el0_svc+0x58/0x13c [ 223.547414][ T6196] el0_svc+0x78/0x1d0 [ 223.548094][ T6196] el0t_64_sync_handler+0xcc/0xe4 [ 223.548893][ T6196] el0t_64_sync+0x1a0/0x1a4 [ 223.552743][ T6196] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.554884][ T6196] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.596932][ T380] device hsr_slave_0 left promiscuous mode [ 223.660651][ T380] device hsr_slave_1 left promiscuous mode [ 223.697717][ T6198] loop1: detected capacity change from 0 to 32768 [ 223.705721][ T6198] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.707104][ T6198] CPU: 0 PID: 6198 Comm: syz.1.621 Not tainted syzkaller #0 [ 223.708260][ T6198] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.709872][ T6198] Call trace: [ 223.710448][ T6198] dump_backtrace+0x0/0x458 [ 223.711208][ T6198] show_stack+0x2c/0x3c [ 223.711869][ T6198] __dump_stack+0x30/0x40 [ 223.712543][ T6198] dump_stack_lvl+0xf4/0x15c [ 223.713291][ T6198] dump_stack+0x1c/0x5c [ 223.714024][ T6198] sysfs_create_dir_ns+0x244/0x264 [ 223.714924][ T6198] kobject_add_internal+0x5ac/0xc3c [ 223.715818][ T6198] kobject_init_and_add+0x124/0x190 [ 223.716744][ T6198] gfs2_sys_fs_add+0x200/0x41c [ 223.717544][ T6198] gfs2_fill_super+0xddc/0x1a18 [ 223.718396][ T6198] get_tree_bdev+0x358/0x544 [ 223.719164][ T6198] gfs2_get_tree+0x54/0x1b4 [ 223.719883][ T6198] vfs_get_tree+0x90/0x274 [ 223.720571][ T6198] do_new_mount+0x228/0x810 [ 223.721361][ T6198] path_mount+0x5bc/0x1008 [ 223.722116][ T6198] __arm64_sys_mount+0x514/0x5f0 [ 223.722945][ T6198] invoke_syscall+0x98/0x2b0 [ 223.723703][ T6198] el0_svc_common+0x138/0x258 [ 223.724530][ T6198] do_el0_svc+0x58/0x13c [ 223.725246][ T6198] el0_svc+0x78/0x1d0 [ 223.725906][ T6198] el0t_64_sync_handler+0xcc/0xe4 [ 223.726709][ T6198] el0t_64_sync+0x1a0/0x1a4 [ 223.729004][ T6198] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.731195][ T6198] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.761397][ T380] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 223.762581][ T380] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 223.764141][ T380] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 223.765386][ T380] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 223.766861][ T380] device bridge_slave_1 left promiscuous mode [ 223.767962][ T380] bridge0: port 2(bridge_slave_1) entered disabled state [ 223.830553][ T380] device bridge_slave_0 left promiscuous mode [ 223.831710][ T380] bridge0: port 1(bridge_slave_0) entered disabled state [ 223.871714][ T6200] loop1: detected capacity change from 0 to 32768 [ 223.879877][ T6200] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.881220][ T6200] CPU: 1 PID: 6200 Comm: syz.1.622 Not tainted syzkaller #0 [ 223.882275][ T6200] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.883954][ T6200] Call trace: [ 223.884514][ T6200] dump_backtrace+0x0/0x458 [ 223.885229][ T6200] show_stack+0x2c/0x3c [ 223.885887][ T6200] __dump_stack+0x30/0x40 [ 223.886570][ T6200] dump_stack_lvl+0xf4/0x15c [ 223.887350][ T6200] dump_stack+0x1c/0x5c [ 223.888084][ T6200] sysfs_create_dir_ns+0x244/0x264 [ 223.888940][ T6200] kobject_add_internal+0x5ac/0xc3c [ 223.889813][ T6200] kobject_init_and_add+0x124/0x190 [ 223.890713][ T6200] gfs2_sys_fs_add+0x200/0x41c [ 223.891481][ T6200] gfs2_fill_super+0xddc/0x1a18 [ 223.892253][ T6200] get_tree_bdev+0x358/0x544 [ 223.893028][ T6200] gfs2_get_tree+0x54/0x1b4 [ 223.893789][ T6200] vfs_get_tree+0x90/0x274 [ 223.894491][ T6200] do_new_mount+0x228/0x810 [ 223.895204][ T6200] path_mount+0x5bc/0x1008 [ 223.895910][ T6200] __arm64_sys_mount+0x514/0x5f0 [ 223.896722][ T6200] invoke_syscall+0x98/0x2b0 [ 223.897491][ T6200] el0_svc_common+0x138/0x258 [ 223.898251][ T6200] do_el0_svc+0x58/0x13c [ 223.898933][ T6200] el0_svc+0x78/0x1d0 [ 223.899551][ T6200] el0t_64_sync_handler+0xcc/0xe4 [ 223.900342][ T6200] el0t_64_sync+0x1a0/0x1a4 [ 223.903001][ T6200] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.905147][ T6200] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.941945][ T380] device veth1_macvtap left promiscuous mode [ 223.942921][ T380] device veth0_macvtap left promiscuous mode [ 223.943906][ T380] device veth1_vlan left promiscuous mode [ 223.944818][ T380] device veth0_vlan left promiscuous mode [ 224.059514][ T6202] loop1: detected capacity change from 0 to 32768 [ 224.071181][ T6202] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.073946][ T6202] CPU: 0 PID: 6202 Comm: syz.1.623 Not tainted syzkaller #0 [ 224.075148][ T6202] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.076736][ T6202] Call trace: [ 224.077262][ T6202] dump_backtrace+0x0/0x458 [ 224.077981][ T6202] show_stack+0x2c/0x3c [ 224.078636][ T6202] __dump_stack+0x30/0x40 [ 224.079320][ T6202] dump_stack_lvl+0xf4/0x15c [ 224.080050][ T6202] dump_stack+0x1c/0x5c [ 224.080708][ T6202] sysfs_create_dir_ns+0x244/0x264 [ 224.081514][ T6202] kobject_add_internal+0x5ac/0xc3c [ 224.082389][ T6202] kobject_init_and_add+0x124/0x190 [ 224.083205][ T6202] gfs2_sys_fs_add+0x200/0x41c [ 224.083974][ T6202] gfs2_fill_super+0xddc/0x1a18 [ 224.084705][ T6202] get_tree_bdev+0x358/0x544 [ 224.085409][ T6202] gfs2_get_tree+0x54/0x1b4 [ 224.086083][ T6202] vfs_get_tree+0x90/0x274 [ 224.086827][ T6202] do_new_mount+0x228/0x810 [ 224.087548][ T6202] path_mount+0x5bc/0x1008 [ 224.088271][ T6202] __arm64_sys_mount+0x514/0x5f0 [ 224.089041][ T6202] invoke_syscall+0x98/0x2b0 [ 224.089825][ T6202] el0_svc_common+0x138/0x258 [ 224.090567][ T6202] do_el0_svc+0x58/0x13c [ 224.091327][ T6202] el0_svc+0x78/0x1d0 [ 224.091991][ T6202] el0t_64_sync_handler+0xcc/0xe4 [ 224.092861][ T6202] el0t_64_sync+0x1a0/0x1a4 [ 224.095594][ T6202] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.097620][ T6202] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.100702][ T380] team0 (unregistering): Port device team_slave_1 removed [ 224.106497][ T380] team0 (unregistering): Port device team_slave_0 removed [ 224.115239][ T380] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 224.153288][ T380] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 224.254084][ T380] bond0 (unregistering): Released all slaves [ 224.278143][ T6204] loop1: detected capacity change from 0 to 32768 [ 224.311360][ T6204] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.317382][ T6204] CPU: 0 PID: 6204 Comm: syz.1.624 Not tainted syzkaller #0 [ 224.318549][ T6204] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.320166][ T6204] Call trace: [ 224.320716][ T6204] dump_backtrace+0x0/0x458 [ 224.321444][ T6204] show_stack+0x2c/0x3c [ 224.322047][ T6204] __dump_stack+0x30/0x40 [ 224.322709][ T6204] dump_stack_lvl+0xf4/0x15c [ 224.323421][ T6204] dump_stack+0x1c/0x5c [ 224.324107][ T6204] sysfs_create_dir_ns+0x244/0x264 [ 224.324937][ T6204] kobject_add_internal+0x5ac/0xc3c [ 224.325773][ T6204] kobject_init_and_add+0x124/0x190 [ 224.326624][ T6204] gfs2_sys_fs_add+0x200/0x41c [ 224.327363][ T6204] gfs2_fill_super+0xddc/0x1a18 [ 224.328195][ T6204] get_tree_bdev+0x358/0x544 [ 224.328895][ T6204] gfs2_get_tree+0x54/0x1b4 [ 224.329589][ T6204] vfs_get_tree+0x90/0x274 [ 224.330264][ T6204] do_new_mount+0x228/0x810 [ 224.330923][ T6204] path_mount+0x5bc/0x1008 [ 224.331631][ T6204] __arm64_sys_mount+0x514/0x5f0 [ 224.332414][ T6204] invoke_syscall+0x98/0x2b0 [ 224.333114][ T6204] el0_svc_common+0x138/0x258 [ 224.333852][ T6204] do_el0_svc+0x58/0x13c [ 224.334506][ T6204] el0_svc+0x78/0x1d0 [ 224.335123][ T6204] el0t_64_sync_handler+0xcc/0xe4 [ 224.335923][ T6204] el0t_64_sync+0x1a0/0x1a4 [ 224.338556][ T6204] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.340670][ T6204] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.496442][ T6206] loop1: detected capacity change from 0 to 32768 [ 224.534885][ T6206] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.536172][ T6206] CPU: 1 PID: 6206 Comm: syz.1.625 Not tainted syzkaller #0 [ 224.537345][ T6206] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.539017][ T6206] Call trace: [ 224.539532][ T6206] dump_backtrace+0x0/0x458 [ 224.540237][ T6206] show_stack+0x2c/0x3c [ 224.540900][ T6206] __dump_stack+0x30/0x40 [ 224.541598][ T6206] dump_stack_lvl+0xf4/0x15c [ 224.542385][ T6206] dump_stack+0x1c/0x5c [ 224.543131][ T6206] sysfs_create_dir_ns+0x244/0x264 [ 224.543998][ T6206] kobject_add_internal+0x5ac/0xc3c [ 224.544828][ T6206] kobject_init_and_add+0x124/0x190 [ 224.545654][ T6206] gfs2_sys_fs_add+0x200/0x41c [ 224.546391][ T6206] gfs2_fill_super+0xddc/0x1a18 [ 224.547172][ T6206] get_tree_bdev+0x358/0x544 [ 224.547905][ T6206] gfs2_get_tree+0x54/0x1b4 [ 224.548617][ T6206] vfs_get_tree+0x90/0x274 [ 224.549322][ T6206] do_new_mount+0x228/0x810 [ 224.550093][ T6206] path_mount+0x5bc/0x1008 [ 224.550827][ T6206] __arm64_sys_mount+0x514/0x5f0 [ 224.551611][ T6206] invoke_syscall+0x98/0x2b0 [ 224.552385][ T6206] el0_svc_common+0x138/0x258 [ 224.553118][ T6206] do_el0_svc+0x58/0x13c [ 224.553823][ T6206] el0_svc+0x78/0x1d0 [ 224.554443][ T6206] el0t_64_sync_handler+0xcc/0xe4 [ 224.555218][ T6206] el0t_64_sync+0x1a0/0x1a4 [ 224.557618][ T6206] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.559820][ T6206] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.706216][ T6208] loop1: detected capacity change from 0 to 32768 [ 224.744346][ T6208] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.745551][ T6208] CPU: 1 PID: 6208 Comm: syz.1.626 Not tainted syzkaller #0 [ 224.746770][ T6208] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.748372][ T6208] Call trace: [ 224.748890][ T6208] dump_backtrace+0x0/0x458 [ 224.749622][ T6208] show_stack+0x2c/0x3c [ 224.750291][ T6208] __dump_stack+0x30/0x40 [ 224.751038][ T6208] dump_stack_lvl+0xf4/0x15c [ 224.751761][ T6208] dump_stack+0x1c/0x5c [ 224.752456][ T6208] sysfs_create_dir_ns+0x244/0x264 [ 224.753271][ T6208] kobject_add_internal+0x5ac/0xc3c [ 224.754087][ T6208] kobject_init_and_add+0x124/0x190 [ 224.754975][ T6208] gfs2_sys_fs_add+0x200/0x41c [ 224.755774][ T6208] gfs2_fill_super+0xddc/0x1a18 [ 224.756546][ T6208] get_tree_bdev+0x358/0x544 [ 224.757256][ T6208] gfs2_get_tree+0x54/0x1b4 [ 224.757962][ T6208] vfs_get_tree+0x90/0x274 [ 224.758628][ T6208] do_new_mount+0x228/0x810 [ 224.759299][ T6208] path_mount+0x5bc/0x1008 [ 224.760080][ T6208] __arm64_sys_mount+0x514/0x5f0 [ 224.760899][ T6208] invoke_syscall+0x98/0x2b0 [ 224.761645][ T6208] el0_svc_common+0x138/0x258 [ 224.762384][ T6208] do_el0_svc+0x58/0x13c [ 224.763108][ T6208] el0_svc+0x78/0x1d0 [ 224.763794][ T6208] el0t_64_sync_handler+0xcc/0xe4 [ 224.764583][ T6208] el0t_64_sync+0x1a0/0x1a4 [ 224.766904][ T6208] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.768975][ T6208] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.915406][ T6210] loop1: detected capacity change from 0 to 32768 [ 224.951118][ T6210] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.952176][ T6210] CPU: 0 PID: 6210 Comm: syz.1.627 Not tainted syzkaller #0 [ 224.953203][ T6210] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.954644][ T6210] Call trace: [ 224.955109][ T6210] dump_backtrace+0x0/0x458 [ 224.955816][ T6210] show_stack+0x2c/0x3c [ 224.956526][ T6210] __dump_stack+0x30/0x40 [ 224.957233][ T6210] dump_stack_lvl+0xf4/0x15c [ 224.958009][ T6210] dump_stack+0x1c/0x5c [ 224.958641][ T6210] sysfs_create_dir_ns+0x244/0x264 [ 224.959444][ T6210] kobject_add_internal+0x5ac/0xc3c [ 224.960266][ T6210] kobject_init_and_add+0x124/0x190 [ 224.961093][ T6210] gfs2_sys_fs_add+0x200/0x41c [ 224.961842][ T6210] gfs2_fill_super+0xddc/0x1a18 [ 224.962651][ T6210] get_tree_bdev+0x358/0x544 [ 224.963432][ T6210] gfs2_get_tree+0x54/0x1b4 [ 224.964167][ T6210] vfs_get_tree+0x90/0x274 [ 224.964833][ T6210] do_new_mount+0x228/0x810 [ 224.965558][ T6210] path_mount+0x5bc/0x1008 [ 224.966269][ T6210] __arm64_sys_mount+0x514/0x5f0 [ 224.967048][ T6210] invoke_syscall+0x98/0x2b0 [ 224.967793][ T6210] el0_svc_common+0x138/0x258 [ 224.968587][ T6210] do_el0_svc+0x58/0x13c [ 224.969319][ T6210] el0_svc+0x78/0x1d0 [ 224.969968][ T6210] el0t_64_sync_handler+0xcc/0xe4 [ 224.970775][ T6210] el0t_64_sync+0x1a0/0x1a4 [ 224.972065][ T6210] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.974158][ T6210] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.217880][ T6212] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.219138][ T6212] CPU: 0 PID: 6212 Comm: syz.1.628 Not tainted syzkaller #0 [ 225.220348][ T6212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.222013][ T6212] Call trace: [ 225.222533][ T6212] dump_backtrace+0x0/0x458 [ 225.223365][ T6212] show_stack+0x2c/0x3c [ 225.224050][ T6212] __dump_stack+0x30/0x40 [ 225.224847][ T6212] dump_stack_lvl+0xf4/0x15c [ 225.225564][ T6212] dump_stack+0x1c/0x5c [ 225.226262][ T6212] sysfs_create_dir_ns+0x244/0x264 [ 225.227081][ T6212] kobject_add_internal+0x5ac/0xc3c [ 225.227980][ T6212] kobject_init_and_add+0x124/0x190 [ 225.228856][ T6212] gfs2_sys_fs_add+0x200/0x41c [ 225.229653][ T6212] gfs2_fill_super+0xddc/0x1a18 [ 225.230431][ T6212] get_tree_bdev+0x358/0x544 [ 225.231147][ T6212] gfs2_get_tree+0x54/0x1b4 [ 225.231861][ T6212] vfs_get_tree+0x90/0x274 [ 225.232566][ T6212] do_new_mount+0x228/0x810 [ 225.233302][ T6212] path_mount+0x5bc/0x1008 [ 225.234039][ T6212] __arm64_sys_mount+0x514/0x5f0 [ 225.234776][ T6212] invoke_syscall+0x98/0x2b0 [ 225.235507][ T6212] el0_svc_common+0x138/0x258 [ 225.236229][ T6212] do_el0_svc+0x58/0x13c [ 225.236901][ T6212] el0_svc+0x78/0x1d0 [ 225.237562][ T6212] el0t_64_sync_handler+0xcc/0xe4 [ 225.238360][ T6212] el0t_64_sync+0x1a0/0x1a4 [ 225.240726][ T6212] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.242678][ T6212] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.471888][ T6214] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.473204][ T6214] CPU: 0 PID: 6214 Comm: syz.1.629 Not tainted syzkaller #0 [ 225.474355][ T6214] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.475929][ T6214] Call trace: [ 225.476470][ T6214] dump_backtrace+0x0/0x458 [ 225.477178][ T6214] show_stack+0x2c/0x3c [ 225.477805][ T6214] __dump_stack+0x30/0x40 [ 225.478497][ T6214] dump_stack_lvl+0xf4/0x15c [ 225.479213][ T6214] dump_stack+0x1c/0x5c [ 225.479822][ T6214] sysfs_create_dir_ns+0x244/0x264 [ 225.480715][ T6214] kobject_add_internal+0x5ac/0xc3c [ 225.481587][ T6214] kobject_init_and_add+0x124/0x190 [ 225.482456][ T6214] gfs2_sys_fs_add+0x200/0x41c [ 225.483257][ T6214] gfs2_fill_super+0xddc/0x1a18 [ 225.484088][ T6214] get_tree_bdev+0x358/0x544 [ 225.484864][ T6214] gfs2_get_tree+0x54/0x1b4 [ 225.485609][ T6214] vfs_get_tree+0x90/0x274 [ 225.486328][ T6214] do_new_mount+0x228/0x810 [ 225.487066][ T6214] path_mount+0x5bc/0x1008 [ 225.487817][ T6214] __arm64_sys_mount+0x514/0x5f0 [ 225.488594][ T6214] invoke_syscall+0x98/0x2b0 [ 225.489248][ T6214] el0_svc_common+0x138/0x258 [ 225.489927][ T6214] do_el0_svc+0x58/0x13c [ 225.490519][ T6214] el0_svc+0x78/0x1d0 [ 225.491081][ T6214] el0t_64_sync_handler+0xcc/0xe4 [ 225.491822][ T6214] el0t_64_sync+0x1a0/0x1a4 [ 225.494542][ T6214] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.496999][ T6214] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.529676][ T4940] Bluetooth: hci2: command 0x041b tx timeout [ 225.770676][ T6216] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.771970][ T6216] CPU: 0 PID: 6216 Comm: syz.1.630 Not tainted syzkaller #0 [ 225.773155][ T6216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.774823][ T6216] Call trace: [ 225.775363][ T6216] dump_backtrace+0x0/0x458 [ 225.776091][ T6216] show_stack+0x2c/0x3c [ 225.776739][ T6216] __dump_stack+0x30/0x40 [ 225.777434][ T6216] dump_stack_lvl+0xf4/0x15c [ 225.778159][ T6216] dump_stack+0x1c/0x5c [ 225.778862][ T6216] sysfs_create_dir_ns+0x244/0x264 [ 225.779736][ T6216] kobject_add_internal+0x5ac/0xc3c [ 225.780598][ T6216] kobject_init_and_add+0x124/0x190 [ 225.781356][ T6216] gfs2_sys_fs_add+0x200/0x41c [ 225.782121][ T6216] gfs2_fill_super+0xddc/0x1a18 [ 225.782985][ T6216] get_tree_bdev+0x358/0x544 [ 225.783798][ T6216] gfs2_get_tree+0x54/0x1b4 [ 225.784639][ T6216] vfs_get_tree+0x90/0x274 [ 225.785464][ T6216] do_new_mount+0x228/0x810 [ 225.786193][ T6216] path_mount+0x5bc/0x1008 [ 225.786888][ T6216] __arm64_sys_mount+0x514/0x5f0 [ 225.787712][ T6216] invoke_syscall+0x98/0x2b0 [ 225.788466][ T6216] el0_svc_common+0x138/0x258 [ 225.789221][ T6216] do_el0_svc+0x58/0x13c [ 225.789941][ T6216] el0_svc+0x78/0x1d0 [ 225.790626][ T6216] el0t_64_sync_handler+0xcc/0xe4 [ 225.791482][ T6216] el0t_64_sync+0x1a0/0x1a4 [ 225.794150][ T6216] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.796126][ T6216] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.074642][ T6218] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.075845][ T6218] CPU: 0 PID: 6218 Comm: syz.1.631 Not tainted syzkaller #0 [ 226.076914][ T6218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.078554][ T6218] Call trace: [ 226.079113][ T6218] dump_backtrace+0x0/0x458 [ 226.079846][ T6218] show_stack+0x2c/0x3c [ 226.080497][ T6218] __dump_stack+0x30/0x40 [ 226.081272][ T6218] dump_stack_lvl+0xf4/0x15c [ 226.082010][ T6218] dump_stack+0x1c/0x5c [ 226.082662][ T6218] sysfs_create_dir_ns+0x244/0x264 [ 226.083493][ T6218] kobject_add_internal+0x5ac/0xc3c [ 226.084279][ T6218] kobject_init_and_add+0x124/0x190 [ 226.085074][ T6218] gfs2_sys_fs_add+0x200/0x41c [ 226.085886][ T6218] gfs2_fill_super+0xddc/0x1a18 [ 226.086685][ T6218] get_tree_bdev+0x358/0x544 [ 226.087418][ T6218] gfs2_get_tree+0x54/0x1b4 [ 226.088144][ T6218] vfs_get_tree+0x90/0x274 [ 226.088805][ T6218] do_new_mount+0x228/0x810 [ 226.089509][ T6218] path_mount+0x5bc/0x1008 [ 226.090225][ T6218] __arm64_sys_mount+0x514/0x5f0 [ 226.091015][ T6218] invoke_syscall+0x98/0x2b0 [ 226.091777][ T6218] el0_svc_common+0x138/0x258 [ 226.092526][ T6218] do_el0_svc+0x58/0x13c [ 226.093261][ T6218] el0_svc+0x78/0x1d0 [ 226.093932][ T6218] el0t_64_sync_handler+0xcc/0xe4 [ 226.094729][ T6218] el0t_64_sync+0x1a0/0x1a4 [ 226.096949][ T6218] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.099074][ T6218] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.351710][ T6220] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.352896][ T6220] CPU: 1 PID: 6220 Comm: syz.1.632 Not tainted syzkaller #0 [ 226.354123][ T6220] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.355730][ T6220] Call trace: [ 226.356185][ T6220] dump_backtrace+0x0/0x458 [ 226.356882][ T6220] show_stack+0x2c/0x3c [ 226.357517][ T6220] __dump_stack+0x30/0x40 [ 226.358152][ T6220] dump_stack_lvl+0xf4/0x15c [ 226.358879][ T6220] dump_stack+0x1c/0x5c [ 226.359573][ T6220] sysfs_create_dir_ns+0x244/0x264 [ 226.360442][ T6220] kobject_add_internal+0x5ac/0xc3c [ 226.361285][ T6220] kobject_init_and_add+0x124/0x190 [ 226.362235][ T6220] gfs2_sys_fs_add+0x200/0x41c [ 226.363061][ T6220] gfs2_fill_super+0xddc/0x1a18 [ 226.363829][ T6220] get_tree_bdev+0x358/0x544 [ 226.364634][ T6220] gfs2_get_tree+0x54/0x1b4 [ 226.365372][ T6220] vfs_get_tree+0x90/0x274 [ 226.366046][ T6220] do_new_mount+0x228/0x810 [ 226.366822][ T6220] path_mount+0x5bc/0x1008 [ 226.367567][ T6220] __arm64_sys_mount+0x514/0x5f0 [ 226.368338][ T6220] invoke_syscall+0x98/0x2b0 [ 226.369097][ T6220] el0_svc_common+0x138/0x258 [ 226.369861][ T6220] do_el0_svc+0x58/0x13c [ 226.370614][ T6220] el0_svc+0x78/0x1d0 [ 226.371266][ T6220] el0t_64_sync_handler+0xcc/0xe4 [ 226.372094][ T6220] el0t_64_sync+0x1a0/0x1a4 [ 226.374076][ T6220] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.376292][ T6220] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:46 executed programs: 618 [ 226.555599][ T6222] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.556867][ T6222] CPU: 0 PID: 6222 Comm: syz.1.633 Not tainted syzkaller #0 [ 226.558060][ T6222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.559541][ T6222] Call trace: [ 226.560067][ T6222] dump_backtrace+0x0/0x458 [ 226.560797][ T6222] show_stack+0x2c/0x3c [ 226.561490][ T6222] __dump_stack+0x30/0x40 [ 226.562226][ T6222] dump_stack_lvl+0xf4/0x15c [ 226.562927][ T6222] dump_stack+0x1c/0x5c [ 226.563666][ T6222] sysfs_create_dir_ns+0x244/0x264 [ 226.564619][ T6222] kobject_add_internal+0x5ac/0xc3c [ 226.565503][ T6222] kobject_init_and_add+0x124/0x190 [ 226.566430][ T6222] gfs2_sys_fs_add+0x200/0x41c [ 226.567234][ T6222] gfs2_fill_super+0xddc/0x1a18 [ 226.568065][ T6222] get_tree_bdev+0x358/0x544 [ 226.568864][ T6222] gfs2_get_tree+0x54/0x1b4 [ 226.569633][ T6222] vfs_get_tree+0x90/0x274 [ 226.570335][ T6222] do_new_mount+0x228/0x810 [ 226.571150][ T6222] path_mount+0x5bc/0x1008 [ 226.571878][ T6222] __arm64_sys_mount+0x514/0x5f0 [ 226.572685][ T6222] invoke_syscall+0x98/0x2b0 [ 226.573413][ T6222] el0_svc_common+0x138/0x258 [ 226.574183][ T6222] do_el0_svc+0x58/0x13c [ 226.574880][ T6222] el0_svc+0x78/0x1d0 [ 226.575578][ T6222] el0t_64_sync_handler+0xcc/0xe4 [ 226.576434][ T6222] el0t_64_sync+0x1a0/0x1a4 [ 226.583061][ T6222] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.584979][ T6222] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.821619][ T6224] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.823703][ T6224] CPU: 1 PID: 6224 Comm: syz.1.634 Not tainted syzkaller #0 [ 226.824809][ T6224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.826508][ T6224] Call trace: [ 226.827102][ T6224] dump_backtrace+0x0/0x458 [ 226.827889][ T6224] show_stack+0x2c/0x3c [ 226.828555][ T6224] __dump_stack+0x30/0x40 [ 226.829264][ T6224] dump_stack_lvl+0xf4/0x15c [ 226.829967][ T6224] dump_stack+0x1c/0x5c [ 226.830660][ T6224] sysfs_create_dir_ns+0x244/0x264 [ 226.831479][ T6224] kobject_add_internal+0x5ac/0xc3c [ 226.832298][ T6224] kobject_init_and_add+0x124/0x190 [ 226.833235][ T6224] gfs2_sys_fs_add+0x200/0x41c [ 226.833983][ T6224] gfs2_fill_super+0xddc/0x1a18 [ 226.834789][ T6224] get_tree_bdev+0x358/0x544 [ 226.835573][ T6224] gfs2_get_tree+0x54/0x1b4 [ 226.836315][ T6224] vfs_get_tree+0x90/0x274 [ 226.837127][ T6224] do_new_mount+0x228/0x810 [ 226.837832][ T6224] path_mount+0x5bc/0x1008 [ 226.838631][ T6224] __arm64_sys_mount+0x514/0x5f0 [ 226.839429][ T6224] invoke_syscall+0x98/0x2b0 [ 226.840244][ T6224] el0_svc_common+0x138/0x258 [ 226.841068][ T6224] do_el0_svc+0x58/0x13c [ 226.841865][ T6224] el0_svc+0x78/0x1d0 [ 226.842571][ T6224] el0t_64_sync_handler+0xcc/0xe4 [ 226.843442][ T6224] el0t_64_sync+0x1a0/0x1a4 [ 226.845855][ T6224] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.848011][ T6224] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.021085][ T6226] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.022303][ T6226] CPU: 1 PID: 6226 Comm: syz.1.635 Not tainted syzkaller #0 [ 227.023425][ T6226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.025092][ T6226] Call trace: [ 227.025603][ T6226] dump_backtrace+0x0/0x458 [ 227.026318][ T6226] show_stack+0x2c/0x3c [ 227.026997][ T6226] __dump_stack+0x30/0x40 [ 227.027702][ T6226] dump_stack_lvl+0xf4/0x15c [ 227.028502][ T6226] dump_stack+0x1c/0x5c [ 227.029217][ T6226] sysfs_create_dir_ns+0x244/0x264 [ 227.030027][ T6226] kobject_add_internal+0x5ac/0xc3c [ 227.030876][ T6226] kobject_init_and_add+0x124/0x190 [ 227.031750][ T6226] gfs2_sys_fs_add+0x200/0x41c [ 227.032540][ T6226] gfs2_fill_super+0xddc/0x1a18 [ 227.033341][ T6226] get_tree_bdev+0x358/0x544 [ 227.034152][ T6226] gfs2_get_tree+0x54/0x1b4 [ 227.034999][ T6226] vfs_get_tree+0x90/0x274 [ 227.035760][ T6226] do_new_mount+0x228/0x810 [ 227.036494][ T6226] path_mount+0x5bc/0x1008 [ 227.037187][ T6226] __arm64_sys_mount+0x514/0x5f0 [ 227.037973][ T6226] invoke_syscall+0x98/0x2b0 [ 227.038766][ T6226] el0_svc_common+0x138/0x258 [ 227.039546][ T6226] do_el0_svc+0x58/0x13c [ 227.040261][ T6226] el0_svc+0x78/0x1d0 [ 227.040910][ T6226] el0t_64_sync_handler+0xcc/0xe4 [ 227.041784][ T6226] el0t_64_sync+0x1a0/0x1a4 [ 227.045097][ T6226] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.047397][ T6226] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.254579][ T6228] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.255761][ T6228] CPU: 0 PID: 6228 Comm: syz.1.636 Not tainted syzkaller #0 [ 227.256807][ T6228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.258264][ T6228] Call trace: [ 227.258790][ T6228] dump_backtrace+0x0/0x458 [ 227.259497][ T6228] show_stack+0x2c/0x3c [ 227.260135][ T6228] __dump_stack+0x30/0x40 [ 227.260803][ T6228] dump_stack_lvl+0xf4/0x15c [ 227.261570][ T6228] dump_stack+0x1c/0x5c [ 227.262270][ T6228] sysfs_create_dir_ns+0x244/0x264 [ 227.263056][ T6228] kobject_add_internal+0x5ac/0xc3c [ 227.263945][ T6228] kobject_init_and_add+0x124/0x190 [ 227.264767][ T6228] gfs2_sys_fs_add+0x200/0x41c [ 227.265504][ T6228] gfs2_fill_super+0xddc/0x1a18 [ 227.266310][ T6228] get_tree_bdev+0x358/0x544 [ 227.267110][ T6228] gfs2_get_tree+0x54/0x1b4 [ 227.267841][ T6228] vfs_get_tree+0x90/0x274 [ 227.268558][ T6228] do_new_mount+0x228/0x810 [ 227.269284][ T6228] path_mount+0x5bc/0x1008 [ 227.269984][ T6228] __arm64_sys_mount+0x514/0x5f0 [ 227.270813][ T6228] invoke_syscall+0x98/0x2b0 [ 227.271586][ T6228] el0_svc_common+0x138/0x258 [ 227.272393][ T6228] do_el0_svc+0x58/0x13c [ 227.273094][ T6228] el0_svc+0x78/0x1d0 [ 227.273742][ T6228] el0t_64_sync_handler+0xcc/0xe4 [ 227.274468][ T6228] el0t_64_sync+0x1a0/0x1a4 [ 227.275448][ T6228] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.277548][ T6228] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.481060][ T6230] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.482272][ T6230] CPU: 1 PID: 6230 Comm: syz.1.637 Not tainted syzkaller #0 [ 227.483352][ T6230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.485094][ T6230] Call trace: [ 227.485664][ T6230] dump_backtrace+0x0/0x458 [ 227.486495][ T6230] show_stack+0x2c/0x3c [ 227.487239][ T6230] __dump_stack+0x30/0x40 [ 227.487991][ T6230] dump_stack_lvl+0xf4/0x15c [ 227.488703][ T6230] dump_stack+0x1c/0x5c [ 227.489351][ T6230] sysfs_create_dir_ns+0x244/0x264 [ 227.490203][ T6230] kobject_add_internal+0x5ac/0xc3c [ 227.491093][ T6230] kobject_init_and_add+0x124/0x190 [ 227.491941][ T6230] gfs2_sys_fs_add+0x200/0x41c [ 227.492697][ T6230] gfs2_fill_super+0xddc/0x1a18 [ 227.493467][ T6230] get_tree_bdev+0x358/0x544 [ 227.494253][ T6230] gfs2_get_tree+0x54/0x1b4 [ 227.494999][ T6230] vfs_get_tree+0x90/0x274 [ 227.495682][ T6230] do_new_mount+0x228/0x810 [ 227.496453][ T6230] path_mount+0x5bc/0x1008 [ 227.497192][ T6230] __arm64_sys_mount+0x514/0x5f0 [ 227.498012][ T6230] invoke_syscall+0x98/0x2b0 [ 227.498792][ T6230] el0_svc_common+0x138/0x258 [ 227.499581][ T6230] do_el0_svc+0x58/0x13c [ 227.500307][ T6230] el0_svc+0x78/0x1d0 [ 227.500978][ T6230] el0t_64_sync_handler+0xcc/0xe4 [ 227.501805][ T6230] el0t_64_sync+0x1a0/0x1a4 [ 227.504093][ T6230] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.506182][ T6230] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.609741][ T21] Bluetooth: hci2: command 0x040f tx timeout [ 227.714123][ T6232] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.715374][ T6232] CPU: 1 PID: 6232 Comm: syz.1.638 Not tainted syzkaller #0 [ 227.716623][ T6232] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.718184][ T6232] Call trace: [ 227.718696][ T6232] dump_backtrace+0x0/0x458 [ 227.719449][ T6232] show_stack+0x2c/0x3c [ 227.720162][ T6232] __dump_stack+0x30/0x40 [ 227.720867][ T6232] dump_stack_lvl+0xf4/0x15c [ 227.721660][ T6232] dump_stack+0x1c/0x5c [ 227.722350][ T6232] sysfs_create_dir_ns+0x244/0x264 [ 227.723172][ T6232] kobject_add_internal+0x5ac/0xc3c [ 227.724082][ T6232] kobject_init_and_add+0x124/0x190 [ 227.724953][ T6232] gfs2_sys_fs_add+0x200/0x41c [ 227.725786][ T6232] gfs2_fill_super+0xddc/0x1a18 [ 227.726622][ T6232] get_tree_bdev+0x358/0x544 [ 227.727365][ T6232] gfs2_get_tree+0x54/0x1b4 [ 227.728103][ T6232] vfs_get_tree+0x90/0x274 [ 227.728834][ T6232] do_new_mount+0x228/0x810 [ 227.729578][ T6232] path_mount+0x5bc/0x1008 [ 227.730276][ T6232] __arm64_sys_mount+0x514/0x5f0 [ 227.731085][ T6232] invoke_syscall+0x98/0x2b0 [ 227.731902][ T6232] el0_svc_common+0x138/0x258 [ 227.732702][ T6232] do_el0_svc+0x58/0x13c [ 227.733422][ T6232] el0_svc+0x78/0x1d0 [ 227.734062][ T6232] el0t_64_sync_handler+0xcc/0xe4 [ 227.734893][ T6232] el0t_64_sync+0x1a0/0x1a4 [ 227.735818][ T6232] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.737878][ T6232] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.962272][ T6234] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.963637][ T6234] CPU: 1 PID: 6234 Comm: syz.1.639 Not tainted syzkaller #0 [ 227.964960][ T6234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.966623][ T6234] Call trace: [ 227.967175][ T6234] dump_backtrace+0x0/0x458 [ 227.967938][ T6234] show_stack+0x2c/0x3c [ 227.968652][ T6234] __dump_stack+0x30/0x40 [ 227.969394][ T6234] dump_stack_lvl+0xf4/0x15c [ 227.970150][ T6234] dump_stack+0x1c/0x5c [ 227.970864][ T6234] sysfs_create_dir_ns+0x244/0x264 [ 227.971681][ T6234] kobject_add_internal+0x5ac/0xc3c [ 227.972586][ T6234] kobject_init_and_add+0x124/0x190 [ 227.973422][ T6234] gfs2_sys_fs_add+0x200/0x41c [ 227.974154][ T6234] gfs2_fill_super+0xddc/0x1a18 [ 227.974934][ T6234] get_tree_bdev+0x358/0x544 [ 227.975726][ T6234] gfs2_get_tree+0x54/0x1b4 [ 227.976456][ T6234] vfs_get_tree+0x90/0x274 [ 227.977159][ T6234] do_new_mount+0x228/0x810 [ 227.977922][ T6234] path_mount+0x5bc/0x1008 [ 227.978608][ T6234] __arm64_sys_mount+0x514/0x5f0 [ 227.979500][ T6234] invoke_syscall+0x98/0x2b0 [ 227.980260][ T6234] el0_svc_common+0x138/0x258 [ 227.981038][ T6234] do_el0_svc+0x58/0x13c [ 227.981733][ T6234] el0_svc+0x78/0x1d0 [ 227.982393][ T6234] el0t_64_sync_handler+0xcc/0xe4 [ 227.983163][ T6234] el0t_64_sync+0x1a0/0x1a4 [ 227.985824][ T6234] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.987960][ T6234] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.124186][ T6236] set_capacity_and_notify: 12 callbacks suppressed [ 228.124197][ T6236] loop1: detected capacity change from 0 to 32768 [ 228.167284][ T6236] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.168484][ T6236] CPU: 1 PID: 6236 Comm: syz.1.640 Not tainted syzkaller #0 [ 228.169666][ T6236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.171259][ T6236] Call trace: [ 228.171763][ T6236] dump_backtrace+0x0/0x458 [ 228.172610][ T6236] show_stack+0x2c/0x3c [ 228.173359][ T6236] __dump_stack+0x30/0x40 [ 228.174123][ T6236] dump_stack_lvl+0xf4/0x15c [ 228.174846][ T6236] dump_stack+0x1c/0x5c [ 228.175511][ T6236] sysfs_create_dir_ns+0x244/0x264 [ 228.176354][ T6236] kobject_add_internal+0x5ac/0xc3c [ 228.177226][ T6236] kobject_init_and_add+0x124/0x190 [ 228.178094][ T6236] gfs2_sys_fs_add+0x200/0x41c [ 228.178910][ T6236] gfs2_fill_super+0xddc/0x1a18 [ 228.179732][ T6236] get_tree_bdev+0x358/0x544 [ 228.180459][ T6236] gfs2_get_tree+0x54/0x1b4 [ 228.181188][ T6236] vfs_get_tree+0x90/0x274 [ 228.181940][ T6236] do_new_mount+0x228/0x810 [ 228.182657][ T6236] path_mount+0x5bc/0x1008 [ 228.183381][ T6236] __arm64_sys_mount+0x514/0x5f0 [ 228.184183][ T6236] invoke_syscall+0x98/0x2b0 [ 228.184943][ T6236] el0_svc_common+0x138/0x258 [ 228.185714][ T6236] do_el0_svc+0x58/0x13c [ 228.186438][ T6236] el0_svc+0x78/0x1d0 [ 228.187111][ T6236] el0t_64_sync_handler+0xcc/0xe4 [ 228.187917][ T6236] el0t_64_sync+0x1a0/0x1a4 [ 228.190760][ T6236] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.192824][ T6236] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.339108][ T6238] loop1: detected capacity change from 0 to 32768 [ 228.394765][ T6238] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.395968][ T6238] CPU: 1 PID: 6238 Comm: syz.1.641 Not tainted syzkaller #0 [ 228.397184][ T6238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.398811][ T6238] Call trace: [ 228.399317][ T6238] dump_backtrace+0x0/0x458 [ 228.400104][ T6238] show_stack+0x2c/0x3c [ 228.400815][ T6238] __dump_stack+0x30/0x40 [ 228.401466][ T6238] dump_stack_lvl+0xf4/0x15c [ 228.402188][ T6238] dump_stack+0x1c/0x5c [ 228.402832][ T6238] sysfs_create_dir_ns+0x244/0x264 [ 228.403662][ T6238] kobject_add_internal+0x5ac/0xc3c [ 228.404489][ T6238] kobject_init_and_add+0x124/0x190 [ 228.405327][ T6238] gfs2_sys_fs_add+0x200/0x41c [ 228.406100][ T6238] gfs2_fill_super+0xddc/0x1a18 [ 228.406911][ T6238] get_tree_bdev+0x358/0x544 [ 228.407707][ T6238] gfs2_get_tree+0x54/0x1b4 [ 228.408492][ T6238] vfs_get_tree+0x90/0x274 [ 228.409191][ T6238] do_new_mount+0x228/0x810 [ 228.409922][ T6238] path_mount+0x5bc/0x1008 [ 228.410733][ T6238] __arm64_sys_mount+0x514/0x5f0 [ 228.411571][ T6238] invoke_syscall+0x98/0x2b0 [ 228.412338][ T6238] el0_svc_common+0x138/0x258 [ 228.413088][ T6238] do_el0_svc+0x58/0x13c [ 228.413816][ T6238] el0_svc+0x78/0x1d0 [ 228.414454][ T6238] el0t_64_sync_handler+0xcc/0xe4 [ 228.415292][ T6238] el0t_64_sync+0x1a0/0x1a4 [ 228.417883][ T6238] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.420308][ T6238] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.557270][ T6240] loop1: detected capacity change from 0 to 32768 [ 228.645610][ T6240] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.646844][ T6240] CPU: 0 PID: 6240 Comm: syz.1.642 Not tainted syzkaller #0 [ 228.648014][ T6240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.649646][ T6240] Call trace: [ 228.650172][ T6240] dump_backtrace+0x0/0x458 [ 228.650904][ T6240] show_stack+0x2c/0x3c [ 228.651610][ T6240] __dump_stack+0x30/0x40 [ 228.652338][ T6240] dump_stack_lvl+0xf4/0x15c [ 228.653104][ T6240] dump_stack+0x1c/0x5c [ 228.653851][ T6240] sysfs_create_dir_ns+0x244/0x264 [ 228.654742][ T6240] kobject_add_internal+0x5ac/0xc3c [ 228.655625][ T6240] kobject_init_and_add+0x124/0x190 [ 228.656466][ T6240] gfs2_sys_fs_add+0x200/0x41c [ 228.657208][ T6240] gfs2_fill_super+0xddc/0x1a18 [ 228.658004][ T6240] get_tree_bdev+0x358/0x544 [ 228.658766][ T6240] gfs2_get_tree+0x54/0x1b4 [ 228.659529][ T6240] vfs_get_tree+0x90/0x274 [ 228.660317][ T6240] do_new_mount+0x228/0x810 [ 228.661056][ T6240] path_mount+0x5bc/0x1008 [ 228.661835][ T6240] __arm64_sys_mount+0x514/0x5f0 [ 228.662666][ T6240] invoke_syscall+0x98/0x2b0 [ 228.663479][ T6240] el0_svc_common+0x138/0x258 [ 228.664303][ T6240] do_el0_svc+0x58/0x13c [ 228.665010][ T6240] el0_svc+0x78/0x1d0 [ 228.665666][ T6240] el0t_64_sync_handler+0xcc/0xe4 [ 228.666449][ T6240] el0t_64_sync+0x1a0/0x1a4 [ 228.667641][ T6240] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.674638][ T6240] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.815921][ T6242] loop1: detected capacity change from 0 to 32768 [ 228.825165][ T6242] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.826491][ T6242] CPU: 1 PID: 6242 Comm: syz.1.643 Not tainted syzkaller #0 [ 228.827673][ T6242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.829197][ T6242] Call trace: [ 228.829741][ T6242] dump_backtrace+0x0/0x458 [ 228.830524][ T6242] show_stack+0x2c/0x3c [ 228.831208][ T6242] __dump_stack+0x30/0x40 [ 228.831980][ T6242] dump_stack_lvl+0xf4/0x15c [ 228.832707][ T6242] dump_stack+0x1c/0x5c [ 228.833354][ T6242] sysfs_create_dir_ns+0x244/0x264 [ 228.834248][ T6242] kobject_add_internal+0x5ac/0xc3c [ 228.835152][ T6242] kobject_init_and_add+0x124/0x190 [ 228.836037][ T6242] gfs2_sys_fs_add+0x200/0x41c [ 228.836825][ T6242] gfs2_fill_super+0xddc/0x1a18 [ 228.837671][ T6242] get_tree_bdev+0x358/0x544 [ 228.838508][ T6242] gfs2_get_tree+0x54/0x1b4 [ 228.839303][ T6242] vfs_get_tree+0x90/0x274 [ 228.840013][ T6242] do_new_mount+0x228/0x810 [ 228.840739][ T6242] path_mount+0x5bc/0x1008 [ 228.841465][ T6242] __arm64_sys_mount+0x514/0x5f0 [ 228.842282][ T6242] invoke_syscall+0x98/0x2b0 [ 228.843044][ T6242] el0_svc_common+0x138/0x258 [ 228.843844][ T6242] do_el0_svc+0x58/0x13c [ 228.844623][ T6242] el0_svc+0x78/0x1d0 [ 228.845304][ T6242] el0t_64_sync_handler+0xcc/0xe4 [ 228.846177][ T6242] el0t_64_sync+0x1a0/0x1a4 [ 228.848436][ T6242] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.850533][ T6242] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.992780][ T6244] loop1: detected capacity change from 0 to 32768 [ 229.001845][ T6244] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.003107][ T6244] CPU: 0 PID: 6244 Comm: syz.1.644 Not tainted syzkaller #0 [ 229.004296][ T6244] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.005838][ T6244] Call trace: [ 229.006389][ T6244] dump_backtrace+0x0/0x458 [ 229.007166][ T6244] show_stack+0x2c/0x3c [ 229.007832][ T6244] __dump_stack+0x30/0x40 [ 229.008563][ T6244] dump_stack_lvl+0xf4/0x15c [ 229.009350][ T6244] dump_stack+0x1c/0x5c [ 229.010040][ T6244] sysfs_create_dir_ns+0x244/0x264 [ 229.010856][ T6244] kobject_add_internal+0x5ac/0xc3c [ 229.011700][ T6244] kobject_init_and_add+0x124/0x190 [ 229.012539][ T6244] gfs2_sys_fs_add+0x200/0x41c [ 229.013259][ T6244] gfs2_fill_super+0xddc/0x1a18 [ 229.014032][ T6244] get_tree_bdev+0x358/0x544 [ 229.014828][ T6244] gfs2_get_tree+0x54/0x1b4 [ 229.015599][ T6244] vfs_get_tree+0x90/0x274 [ 229.016324][ T6244] do_new_mount+0x228/0x810 [ 229.017038][ T6244] path_mount+0x5bc/0x1008 [ 229.017734][ T6244] __arm64_sys_mount+0x514/0x5f0 [ 229.018562][ T6244] invoke_syscall+0x98/0x2b0 [ 229.019365][ T6244] el0_svc_common+0x138/0x258 [ 229.020092][ T6244] do_el0_svc+0x58/0x13c [ 229.020782][ T6244] el0_svc+0x78/0x1d0 [ 229.021444][ T6244] el0t_64_sync_handler+0xcc/0xe4 [ 229.022265][ T6244] el0t_64_sync+0x1a0/0x1a4 [ 229.023184][ T6244] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.025251][ T6244] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.164215][ T6246] loop1: detected capacity change from 0 to 32768 [ 229.211677][ T6246] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.212938][ T6246] CPU: 1 PID: 6246 Comm: syz.1.645 Not tainted syzkaller #0 [ 229.214057][ T6246] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.215624][ T6246] Call trace: [ 229.216126][ T6246] dump_backtrace+0x0/0x458 [ 229.216845][ T6246] show_stack+0x2c/0x3c [ 229.217459][ T6246] __dump_stack+0x30/0x40 [ 229.218146][ T6246] dump_stack_lvl+0xf4/0x15c [ 229.218835][ T6246] dump_stack+0x1c/0x5c [ 229.219576][ T6246] sysfs_create_dir_ns+0x244/0x264 [ 229.220465][ T6246] kobject_add_internal+0x5ac/0xc3c [ 229.221310][ T6246] kobject_init_and_add+0x124/0x190 [ 229.222159][ T6246] gfs2_sys_fs_add+0x200/0x41c [ 229.223022][ T6246] gfs2_fill_super+0xddc/0x1a18 [ 229.223902][ T6246] get_tree_bdev+0x358/0x544 [ 229.224685][ T6246] gfs2_get_tree+0x54/0x1b4 [ 229.225522][ T6246] vfs_get_tree+0x90/0x274 [ 229.226318][ T6246] do_new_mount+0x228/0x810 [ 229.227066][ T6246] path_mount+0x5bc/0x1008 [ 229.227812][ T6246] __arm64_sys_mount+0x514/0x5f0 [ 229.228653][ T6246] invoke_syscall+0x98/0x2b0 [ 229.229440][ T6246] el0_svc_common+0x138/0x258 [ 229.230262][ T6246] do_el0_svc+0x58/0x13c [ 229.230957][ T6246] el0_svc+0x78/0x1d0 [ 229.231635][ T6246] el0t_64_sync_handler+0xcc/0xe4 [ 229.232448][ T6246] el0t_64_sync+0x1a0/0x1a4 [ 229.234663][ T6246] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.236794][ T6246] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.377003][ T6248] loop1: detected capacity change from 0 to 32768 [ 229.385830][ T6248] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.387121][ T6248] CPU: 0 PID: 6248 Comm: syz.1.646 Not tainted syzkaller #0 [ 229.388224][ T6248] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.390026][ T6248] Call trace: [ 229.390572][ T6248] dump_backtrace+0x0/0x458 [ 229.391252][ T6248] show_stack+0x2c/0x3c [ 229.391937][ T6248] __dump_stack+0x30/0x40 [ 229.392613][ T6248] dump_stack_lvl+0xf4/0x15c [ 229.393339][ T6248] dump_stack+0x1c/0x5c [ 229.394010][ T6248] sysfs_create_dir_ns+0x244/0x264 [ 229.394879][ T6248] kobject_add_internal+0x5ac/0xc3c [ 229.395786][ T6248] kobject_init_and_add+0x124/0x190 [ 229.396742][ T6248] gfs2_sys_fs_add+0x200/0x41c [ 229.397575][ T6248] gfs2_fill_super+0xddc/0x1a18 [ 229.398400][ T6248] get_tree_bdev+0x358/0x544 [ 229.399174][ T6248] gfs2_get_tree+0x54/0x1b4 [ 229.399883][ T6248] vfs_get_tree+0x90/0x274 [ 229.400583][ T6248] do_new_mount+0x228/0x810 [ 229.401336][ T6248] path_mount+0x5bc/0x1008 [ 229.401994][ T6248] __arm64_sys_mount+0x514/0x5f0 [ 229.402823][ T6248] invoke_syscall+0x98/0x2b0 [ 229.403541][ T6248] el0_svc_common+0x138/0x258 [ 229.404297][ T6248] do_el0_svc+0x58/0x13c [ 229.404962][ T6248] el0_svc+0x78/0x1d0 [ 229.405597][ T6248] el0t_64_sync_handler+0xcc/0xe4 [ 229.406423][ T6248] el0t_64_sync+0x1a0/0x1a4 [ 229.407386][ T6248] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.409634][ T6248] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.546444][ T6250] loop1: detected capacity change from 0 to 32768 [ 229.624691][ T6250] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.626002][ T6250] CPU: 0 PID: 6250 Comm: syz.1.647 Not tainted syzkaller #0 [ 229.627278][ T6250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.628864][ T6250] Call trace: [ 229.629346][ T6250] dump_backtrace+0x0/0x458 [ 229.630095][ T6250] show_stack+0x2c/0x3c [ 229.630779][ T6250] __dump_stack+0x30/0x40 [ 229.631454][ T6250] dump_stack_lvl+0xf4/0x15c [ 229.632278][ T6250] dump_stack+0x1c/0x5c [ 229.633035][ T6250] sysfs_create_dir_ns+0x244/0x264 [ 229.633920][ T6250] kobject_add_internal+0x5ac/0xc3c [ 229.634760][ T6250] kobject_init_and_add+0x124/0x190 [ 229.635595][ T6250] gfs2_sys_fs_add+0x200/0x41c [ 229.636372][ T6250] gfs2_fill_super+0xddc/0x1a18 [ 229.637200][ T6250] get_tree_bdev+0x358/0x544 [ 229.637958][ T6250] gfs2_get_tree+0x54/0x1b4 [ 229.638686][ T6250] vfs_get_tree+0x90/0x274 [ 229.639382][ T6250] do_new_mount+0x228/0x810 [ 229.640124][ T6250] path_mount+0x5bc/0x1008 [ 229.640843][ T6250] __arm64_sys_mount+0x514/0x5f0 [ 229.641667][ T6250] invoke_syscall+0x98/0x2b0 [ 229.642390][ T6250] el0_svc_common+0x138/0x258 [ 229.643146][ T6250] do_el0_svc+0x58/0x13c [ 229.643849][ T6250] el0_svc+0x78/0x1d0 [ 229.644519][ T6250] el0t_64_sync_handler+0xcc/0xe4 [ 229.645356][ T6250] el0t_64_sync+0x1a0/0x1a4 [ 229.647678][ T6250] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.649884][ T6250] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.705404][ T21] Bluetooth: hci2: command 0x0419 tx timeout [ 229.787023][ T6252] loop1: detected capacity change from 0 to 32768 [ 229.812695][ T6252] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.813888][ T6252] CPU: 1 PID: 6252 Comm: syz.1.648 Not tainted syzkaller #0 [ 229.815121][ T6252] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.816744][ T6252] Call trace: [ 229.817247][ T6252] dump_backtrace+0x0/0x458 [ 229.817979][ T6252] show_stack+0x2c/0x3c [ 229.818626][ T6252] __dump_stack+0x30/0x40 [ 229.819306][ T6252] dump_stack_lvl+0xf4/0x15c [ 229.820029][ T6252] dump_stack+0x1c/0x5c [ 229.820727][ T6252] sysfs_create_dir_ns+0x244/0x264 [ 229.821620][ T6252] kobject_add_internal+0x5ac/0xc3c [ 229.822437][ T6252] kobject_init_and_add+0x124/0x190 [ 229.823280][ T6252] gfs2_sys_fs_add+0x200/0x41c [ 229.824029][ T6252] gfs2_fill_super+0xddc/0x1a18 [ 229.824811][ T6252] get_tree_bdev+0x358/0x544 [ 229.825576][ T6252] gfs2_get_tree+0x54/0x1b4 [ 229.826365][ T6252] vfs_get_tree+0x90/0x274 [ 229.827108][ T6252] do_new_mount+0x228/0x810 [ 229.827884][ T6252] path_mount+0x5bc/0x1008 [ 229.828584][ T6252] __arm64_sys_mount+0x514/0x5f0 [ 229.829368][ T6252] invoke_syscall+0x98/0x2b0 [ 229.830163][ T6252] el0_svc_common+0x138/0x258 [ 229.830957][ T6252] do_el0_svc+0x58/0x13c [ 229.831660][ T6252] el0_svc+0x78/0x1d0 [ 229.832360][ T6252] el0t_64_sync_handler+0xcc/0xe4 [ 229.833156][ T6252] el0t_64_sync+0x1a0/0x1a4 [ 229.835532][ T6252] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.837525][ T6252] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.979488][ T6254] loop1: detected capacity change from 0 to 32768 [ 229.987792][ T6254] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.988984][ T6254] CPU: 0 PID: 6254 Comm: syz.1.649 Not tainted syzkaller #0 [ 229.990179][ T6254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.991928][ T6254] Call trace: [ 229.992443][ T6254] dump_backtrace+0x0/0x458 [ 229.993252][ T6254] show_stack+0x2c/0x3c [ 229.993920][ T6254] __dump_stack+0x30/0x40 [ 229.994616][ T6254] dump_stack_lvl+0xf4/0x15c [ 229.995310][ T6254] dump_stack+0x1c/0x5c [ 229.995963][ T6254] sysfs_create_dir_ns+0x244/0x264 [ 229.996787][ T6254] kobject_add_internal+0x5ac/0xc3c [ 229.997691][ T6254] kobject_init_and_add+0x124/0x190 [ 229.998563][ T6254] gfs2_sys_fs_add+0x200/0x41c [ 229.999326][ T6254] gfs2_fill_super+0xddc/0x1a18 [ 230.000096][ T6254] get_tree_bdev+0x358/0x544 [ 230.000805][ T6254] gfs2_get_tree+0x54/0x1b4 [ 230.001529][ T6254] vfs_get_tree+0x90/0x274 [ 230.002257][ T6254] do_new_mount+0x228/0x810 [ 230.002940][ T6254] path_mount+0x5bc/0x1008 [ 230.003702][ T6254] __arm64_sys_mount+0x514/0x5f0 [ 230.004464][ T6254] invoke_syscall+0x98/0x2b0 [ 230.005184][ T6254] el0_svc_common+0x138/0x258 [ 230.005967][ T6254] do_el0_svc+0x58/0x13c [ 230.006680][ T6254] el0_svc+0x78/0x1d0 [ 230.007285][ T6254] el0t_64_sync_handler+0xcc/0xe4 [ 230.008057][ T6254] el0t_64_sync+0x1a0/0x1a4 [ 230.009074][ T6254] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.011049][ T6254] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.155466][ T6256] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.156719][ T6256] CPU: 0 PID: 6256 Comm: syz.1.650 Not tainted syzkaller #0 [ 230.157915][ T6256] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.159451][ T6256] Call trace: [ 230.159955][ T6256] dump_backtrace+0x0/0x458 [ 230.160670][ T6256] show_stack+0x2c/0x3c [ 230.161327][ T6256] __dump_stack+0x30/0x40 [ 230.162014][ T6256] dump_stack_lvl+0xf4/0x15c [ 230.162738][ T6256] dump_stack+0x1c/0x5c [ 230.163438][ T6256] sysfs_create_dir_ns+0x244/0x264 [ 230.164291][ T6256] kobject_add_internal+0x5ac/0xc3c [ 230.165130][ T6256] kobject_init_and_add+0x124/0x190 [ 230.165915][ T6256] gfs2_sys_fs_add+0x200/0x41c [ 230.166735][ T6256] gfs2_fill_super+0xddc/0x1a18 [ 230.167614][ T6256] get_tree_bdev+0x358/0x544 [ 230.168354][ T6256] gfs2_get_tree+0x54/0x1b4 [ 230.169006][ T6256] vfs_get_tree+0x90/0x274 [ 230.169736][ T6256] do_new_mount+0x228/0x810 [ 230.170448][ T6256] path_mount+0x5bc/0x1008 [ 230.171212][ T6256] __arm64_sys_mount+0x514/0x5f0 [ 230.172031][ T6256] invoke_syscall+0x98/0x2b0 [ 230.172796][ T6256] el0_svc_common+0x138/0x258 [ 230.173571][ T6256] do_el0_svc+0x58/0x13c [ 230.174273][ T6256] el0_svc+0x78/0x1d0 [ 230.174923][ T6256] el0t_64_sync_handler+0xcc/0xe4 [ 230.175722][ T6256] el0t_64_sync+0x1a0/0x1a4 [ 230.177201][ T6256] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.179319][ T6256] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.325430][ T6258] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.326737][ T6258] CPU: 1 PID: 6258 Comm: syz.1.651 Not tainted syzkaller #0 [ 230.327927][ T6258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.329558][ T6258] Call trace: [ 230.330103][ T6258] dump_backtrace+0x0/0x458 [ 230.330945][ T6258] show_stack+0x2c/0x3c [ 230.331635][ T6258] __dump_stack+0x30/0x40 [ 230.332343][ T6258] dump_stack_lvl+0xf4/0x15c [ 230.333066][ T6258] dump_stack+0x1c/0x5c [ 230.333739][ T6258] sysfs_create_dir_ns+0x244/0x264 [ 230.334558][ T6258] kobject_add_internal+0x5ac/0xc3c [ 230.335429][ T6258] kobject_init_and_add+0x124/0x190 [ 230.336246][ T6258] gfs2_sys_fs_add+0x200/0x41c [ 230.336962][ T6258] gfs2_fill_super+0xddc/0x1a18 [ 230.337721][ T6258] get_tree_bdev+0x358/0x544 [ 230.338406][ T6258] gfs2_get_tree+0x54/0x1b4 [ 230.339109][ T6258] vfs_get_tree+0x90/0x274 [ 230.339792][ T6258] do_new_mount+0x228/0x810 [ 230.340484][ T6258] path_mount+0x5bc/0x1008 [ 230.341183][ T6258] __arm64_sys_mount+0x514/0x5f0 [ 230.341940][ T6258] invoke_syscall+0x98/0x2b0 [ 230.342699][ T6258] el0_svc_common+0x138/0x258 [ 230.343455][ T6258] do_el0_svc+0x58/0x13c [ 230.344143][ T6258] el0_svc+0x78/0x1d0 [ 230.344770][ T6258] el0t_64_sync_handler+0xcc/0xe4 [ 230.345637][ T6258] el0t_64_sync+0x1a0/0x1a4 [ 230.347949][ T6258] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.350250][ T6258] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.545876][ T6260] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.547315][ T6260] CPU: 0 PID: 6260 Comm: syz.1.652 Not tainted syzkaller #0 [ 230.548540][ T6260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.550274][ T6260] Call trace: [ 230.550844][ T6260] dump_backtrace+0x0/0x458 [ 230.551637][ T6260] show_stack+0x2c/0x3c [ 230.552364][ T6260] __dump_stack+0x30/0x40 [ 230.553159][ T6260] dump_stack_lvl+0xf4/0x15c [ 230.553923][ T6260] dump_stack+0x1c/0x5c [ 230.554616][ T6260] sysfs_create_dir_ns+0x244/0x264 [ 230.555429][ T6260] kobject_add_internal+0x5ac/0xc3c [ 230.556293][ T6260] kobject_init_and_add+0x124/0x190 [ 230.557259][ T6260] gfs2_sys_fs_add+0x200/0x41c [ 230.558097][ T6260] gfs2_fill_super+0xddc/0x1a18 [ 230.558911][ T6260] get_tree_bdev+0x358/0x544 [ 230.559667][ T6260] gfs2_get_tree+0x54/0x1b4 [ 230.560403][ T6260] vfs_get_tree+0x90/0x274 [ 230.561119][ T6260] do_new_mount+0x228/0x810 [ 230.561841][ T6260] path_mount+0x5bc/0x1008 [ 230.562596][ T6260] __arm64_sys_mount+0x514/0x5f0 [ 230.563488][ T6260] invoke_syscall+0x98/0x2b0 [ 230.564298][ T6260] el0_svc_common+0x138/0x258 [ 230.565101][ T6260] do_el0_svc+0x58/0x13c [ 230.565863][ T6260] el0_svc+0x78/0x1d0 [ 230.566550][ T6260] el0t_64_sync_handler+0xcc/0xe4 [ 230.567420][ T6260] el0t_64_sync+0x1a0/0x1a4 [ 230.569748][ T6260] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.571823][ T6260] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.760997][ T6262] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.762209][ T6262] CPU: 1 PID: 6262 Comm: syz.1.653 Not tainted syzkaller #0 [ 230.763382][ T6262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.765012][ T6262] Call trace: [ 230.765527][ T6262] dump_backtrace+0x0/0x458 [ 230.766213][ T6262] show_stack+0x2c/0x3c [ 230.766871][ T6262] __dump_stack+0x30/0x40 [ 230.767590][ T6262] dump_stack_lvl+0xf4/0x15c [ 230.768405][ T6262] dump_stack+0x1c/0x5c [ 230.769092][ T6262] sysfs_create_dir_ns+0x244/0x264 [ 230.769940][ T6262] kobject_add_internal+0x5ac/0xc3c [ 230.770800][ T6262] kobject_init_and_add+0x124/0x190 [ 230.771583][ T6262] gfs2_sys_fs_add+0x200/0x41c [ 230.772366][ T6262] gfs2_fill_super+0xddc/0x1a18 [ 230.773128][ T6262] get_tree_bdev+0x358/0x544 [ 230.773847][ T6262] gfs2_get_tree+0x54/0x1b4 [ 230.774518][ T6262] vfs_get_tree+0x90/0x274 [ 230.775204][ T6262] do_new_mount+0x228/0x810 [ 230.775943][ T6262] path_mount+0x5bc/0x1008 [ 230.776603][ T6262] __arm64_sys_mount+0x514/0x5f0 [ 230.777370][ T6262] invoke_syscall+0x98/0x2b0 [ 230.778056][ T6262] el0_svc_common+0x138/0x258 [ 230.778761][ T6262] do_el0_svc+0x58/0x13c [ 230.779416][ T6262] el0_svc+0x78/0x1d0 [ 230.780049][ T6262] el0t_64_sync_handler+0xcc/0xe4 [ 230.780876][ T6262] el0t_64_sync+0x1a0/0x1a4 [ 230.783203][ T6262] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.785288][ T6262] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.012230][ T6264] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.013464][ T6264] CPU: 0 PID: 6264 Comm: syz.1.654 Not tainted syzkaller #0 [ 231.014644][ T6264] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.016318][ T6264] Call trace: [ 231.016853][ T6264] dump_backtrace+0x0/0x458 [ 231.017588][ T6264] show_stack+0x2c/0x3c [ 231.018306][ T6264] __dump_stack+0x30/0x40 [ 231.018996][ T6264] dump_stack_lvl+0xf4/0x15c [ 231.019691][ T6264] dump_stack+0x1c/0x5c [ 231.020348][ T6264] sysfs_create_dir_ns+0x244/0x264 [ 231.021177][ T6264] kobject_add_internal+0x5ac/0xc3c [ 231.022006][ T6264] kobject_init_and_add+0x124/0x190 [ 231.022850][ T6264] gfs2_sys_fs_add+0x200/0x41c [ 231.023647][ T6264] gfs2_fill_super+0xddc/0x1a18 [ 231.024430][ T6264] get_tree_bdev+0x358/0x544 [ 231.025227][ T6264] gfs2_get_tree+0x54/0x1b4 [ 231.025928][ T6264] vfs_get_tree+0x90/0x274 [ 231.026617][ T6264] do_new_mount+0x228/0x810 [ 231.027328][ T6264] path_mount+0x5bc/0x1008 [ 231.028058][ T6264] __arm64_sys_mount+0x514/0x5f0 [ 231.028828][ T6264] invoke_syscall+0x98/0x2b0 [ 231.029533][ T6264] el0_svc_common+0x138/0x258 [ 231.030264][ T6264] do_el0_svc+0x58/0x13c [ 231.030927][ T6264] el0_svc+0x78/0x1d0 [ 231.031551][ T6264] el0t_64_sync_handler+0xcc/0xe4 [ 231.032365][ T6264] el0t_64_sync+0x1a0/0x1a4 [ 231.033891][ T6264] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.036010][ T6264] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.181568][ T6266] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.182761][ T6266] CPU: 1 PID: 6266 Comm: syz.1.655 Not tainted syzkaller #0 [ 231.183949][ T6266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.185575][ T6266] Call trace: [ 231.186129][ T6266] dump_backtrace+0x0/0x458 [ 231.186893][ T6266] show_stack+0x2c/0x3c [ 231.187576][ T6266] __dump_stack+0x30/0x40 [ 231.188200][ T6266] dump_stack_lvl+0xf4/0x15c [ 231.188924][ T6266] dump_stack+0x1c/0x5c [ 231.189595][ T6266] sysfs_create_dir_ns+0x244/0x264 [ 231.190357][ T6266] kobject_add_internal+0x5ac/0xc3c [ 231.191156][ T6266] kobject_init_and_add+0x124/0x190 [ 231.191945][ T6266] gfs2_sys_fs_add+0x200/0x41c [ 231.192646][ T6266] gfs2_fill_super+0xddc/0x1a18 [ 231.193366][ T6266] get_tree_bdev+0x358/0x544 [ 231.194124][ T6266] gfs2_get_tree+0x54/0x1b4 [ 231.194868][ T6266] vfs_get_tree+0x90/0x274 [ 231.195545][ T6266] do_new_mount+0x228/0x810 [ 231.196273][ T6266] path_mount+0x5bc/0x1008 [ 231.196992][ T6266] __arm64_sys_mount+0x514/0x5f0 [ 231.197839][ T6266] invoke_syscall+0x98/0x2b0 [ 231.198563][ T6266] el0_svc_common+0x138/0x258 [ 231.199331][ T6266] do_el0_svc+0x58/0x13c [ 231.200035][ T6266] el0_svc+0x78/0x1d0 [ 231.200713][ T6266] el0t_64_sync_handler+0xcc/0xe4 [ 231.201500][ T6266] el0t_64_sync+0x1a0/0x1a4 [ 231.202412][ T6266] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.204428][ T6266] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.356883][ T6268] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.358131][ T6268] CPU: 1 PID: 6268 Comm: syz.1.656 Not tainted syzkaller #0 [ 231.359312][ T6268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.360899][ T6268] Call trace: [ 231.361425][ T6268] dump_backtrace+0x0/0x458 [ 231.362142][ T6268] show_stack+0x2c/0x3c [ 231.362797][ T6268] __dump_stack+0x30/0x40 [ 231.363500][ T6268] dump_stack_lvl+0xf4/0x15c [ 231.364215][ T6268] dump_stack+0x1c/0x5c [ 231.364905][ T6268] sysfs_create_dir_ns+0x244/0x264 [ 231.365745][ T6268] kobject_add_internal+0x5ac/0xc3c [ 231.366585][ T6268] kobject_init_and_add+0x124/0x190 [ 231.367415][ T6268] gfs2_sys_fs_add+0x200/0x41c [ 231.368180][ T6268] gfs2_fill_super+0xddc/0x1a18 [ 231.368958][ T6268] get_tree_bdev+0x358/0x544 [ 231.369673][ T6268] gfs2_get_tree+0x54/0x1b4 [ 231.370370][ T6268] vfs_get_tree+0x90/0x274 [ 231.371042][ T6268] do_new_mount+0x228/0x810 [ 231.371771][ T6268] path_mount+0x5bc/0x1008 [ 231.372482][ T6268] __arm64_sys_mount+0x514/0x5f0 [ 231.373283][ T6268] invoke_syscall+0x98/0x2b0 [ 231.374039][ T6268] el0_svc_common+0x138/0x258 [ 231.374763][ T6268] do_el0_svc+0x58/0x13c [ 231.375408][ T6268] el0_svc+0x78/0x1d0 [ 231.376009][ T6268] el0t_64_sync_handler+0xcc/0xe4 [ 231.376774][ T6268] el0t_64_sync+0x1a0/0x1a4 [ 231.379013][ T6268] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.381138][ T6268] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:51 executed programs: 642 [ 231.538281][ T6270] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.539633][ T6270] CPU: 0 PID: 6270 Comm: syz.1.657 Not tainted syzkaller #0 [ 231.540757][ T6270] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.542301][ T6270] Call trace: [ 231.542809][ T6270] dump_backtrace+0x0/0x458 [ 231.543504][ T6270] show_stack+0x2c/0x3c [ 231.544146][ T6270] __dump_stack+0x30/0x40 [ 231.544811][ T6270] dump_stack_lvl+0xf4/0x15c [ 231.545526][ T6270] dump_stack+0x1c/0x5c [ 231.546175][ T6270] sysfs_create_dir_ns+0x244/0x264 [ 231.546989][ T6270] kobject_add_internal+0x5ac/0xc3c [ 231.547862][ T6270] kobject_init_and_add+0x124/0x190 [ 231.548734][ T6270] gfs2_sys_fs_add+0x200/0x41c [ 231.549513][ T6270] gfs2_fill_super+0xddc/0x1a18 [ 231.550274][ T6270] get_tree_bdev+0x358/0x544 [ 231.551063][ T6270] gfs2_get_tree+0x54/0x1b4 [ 231.551788][ T6270] vfs_get_tree+0x90/0x274 [ 231.552523][ T6270] do_new_mount+0x228/0x810 [ 231.553228][ T6270] path_mount+0x5bc/0x1008 [ 231.553966][ T6270] __arm64_sys_mount+0x514/0x5f0 [ 231.554793][ T6270] invoke_syscall+0x98/0x2b0 [ 231.555518][ T6270] el0_svc_common+0x138/0x258 [ 231.556253][ T6270] do_el0_svc+0x58/0x13c [ 231.556960][ T6270] el0_svc+0x78/0x1d0 [ 231.557544][ T6270] el0t_64_sync_handler+0xcc/0xe4 [ 231.558398][ T6270] el0t_64_sync+0x1a0/0x1a4 [ 231.560802][ T6270] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.562777][ T6270] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.772457][ T6272] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.773717][ T6272] CPU: 1 PID: 6272 Comm: syz.1.658 Not tainted syzkaller #0 [ 231.774823][ T6272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.776424][ T6272] Call trace: [ 231.776993][ T6272] dump_backtrace+0x0/0x458 [ 231.777716][ T6272] show_stack+0x2c/0x3c [ 231.778395][ T6272] __dump_stack+0x30/0x40 [ 231.779093][ T6272] dump_stack_lvl+0xf4/0x15c [ 231.779833][ T6272] dump_stack+0x1c/0x5c [ 231.780496][ T6272] sysfs_create_dir_ns+0x244/0x264 [ 231.781338][ T6272] kobject_add_internal+0x5ac/0xc3c [ 231.782172][ T6272] kobject_init_and_add+0x124/0x190 [ 231.783029][ T6272] gfs2_sys_fs_add+0x200/0x41c [ 231.783824][ T6272] gfs2_fill_super+0xddc/0x1a18 [ 231.784665][ T6272] get_tree_bdev+0x358/0x544 [ 231.785470][ T6272] gfs2_get_tree+0x54/0x1b4 [ 231.786235][ T6272] vfs_get_tree+0x90/0x274 [ 231.786978][ T6272] do_new_mount+0x228/0x810 [ 231.787684][ T6272] path_mount+0x5bc/0x1008 [ 231.788409][ T6272] __arm64_sys_mount+0x514/0x5f0 [ 231.789177][ T6272] invoke_syscall+0x98/0x2b0 [ 231.789995][ T6272] el0_svc_common+0x138/0x258 [ 231.790701][ T6272] do_el0_svc+0x58/0x13c [ 231.791338][ T6272] el0_svc+0x78/0x1d0 [ 231.792076][ T6272] el0t_64_sync_handler+0xcc/0xe4 [ 231.792951][ T6272] el0t_64_sync+0x1a0/0x1a4 [ 231.809781][ T6272] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.811557][ T6272] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.025980][ T6274] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.027202][ T6274] CPU: 0 PID: 6274 Comm: syz.1.659 Not tainted syzkaller #0 [ 232.028301][ T6274] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.029792][ T6274] Call trace: [ 232.030296][ T6274] dump_backtrace+0x0/0x458 [ 232.030986][ T6274] show_stack+0x2c/0x3c [ 232.031703][ T6274] __dump_stack+0x30/0x40 [ 232.032393][ T6274] dump_stack_lvl+0xf4/0x15c [ 232.033151][ T6274] dump_stack+0x1c/0x5c [ 232.033790][ T6274] sysfs_create_dir_ns+0x244/0x264 [ 232.034612][ T6274] kobject_add_internal+0x5ac/0xc3c [ 232.035522][ T6274] kobject_init_and_add+0x124/0x190 [ 232.036384][ T6274] gfs2_sys_fs_add+0x200/0x41c [ 232.037207][ T6274] gfs2_fill_super+0xddc/0x1a18 [ 232.038007][ T6274] get_tree_bdev+0x358/0x544 [ 232.038726][ T6274] gfs2_get_tree+0x54/0x1b4 [ 232.039439][ T6274] vfs_get_tree+0x90/0x274 [ 232.040202][ T6274] do_new_mount+0x228/0x810 [ 232.040986][ T6274] path_mount+0x5bc/0x1008 [ 232.041717][ T6274] __arm64_sys_mount+0x514/0x5f0 [ 232.042514][ T6274] invoke_syscall+0x98/0x2b0 [ 232.043209][ T6274] el0_svc_common+0x138/0x258 [ 232.043957][ T6274] do_el0_svc+0x58/0x13c [ 232.044618][ T6274] el0_svc+0x78/0x1d0 [ 232.045360][ T6274] el0t_64_sync_handler+0xcc/0xe4 [ 232.046240][ T6274] el0t_64_sync+0x1a0/0x1a4 [ 232.048907][ T6274] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.052330][ T6274] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.196051][ T6276] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.197330][ T6276] CPU: 1 PID: 6276 Comm: syz.1.660 Not tainted syzkaller #0 [ 232.198379][ T6276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.199959][ T6276] Call trace: [ 232.200507][ T6276] dump_backtrace+0x0/0x458 [ 232.201224][ T6276] show_stack+0x2c/0x3c [ 232.201963][ T6276] __dump_stack+0x30/0x40 [ 232.202700][ T6276] dump_stack_lvl+0xf4/0x15c [ 232.203476][ T6276] dump_stack+0x1c/0x5c [ 232.204173][ T6276] sysfs_create_dir_ns+0x244/0x264 [ 232.205057][ T6276] kobject_add_internal+0x5ac/0xc3c [ 232.205966][ T6276] kobject_init_and_add+0x124/0x190 [ 232.206814][ T6276] gfs2_sys_fs_add+0x200/0x41c [ 232.207585][ T6276] gfs2_fill_super+0xddc/0x1a18 [ 232.208327][ T6276] get_tree_bdev+0x358/0x544 [ 232.209048][ T6276] gfs2_get_tree+0x54/0x1b4 [ 232.209754][ T6276] vfs_get_tree+0x90/0x274 [ 232.210526][ T6276] do_new_mount+0x228/0x810 [ 232.211326][ T6276] path_mount+0x5bc/0x1008 [ 232.212046][ T6276] __arm64_sys_mount+0x514/0x5f0 [ 232.212829][ T6276] invoke_syscall+0x98/0x2b0 [ 232.213591][ T6276] el0_svc_common+0x138/0x258 [ 232.214362][ T6276] do_el0_svc+0x58/0x13c [ 232.215044][ T6276] el0_svc+0x78/0x1d0 [ 232.215679][ T6276] el0t_64_sync_handler+0xcc/0xe4 [ 232.216499][ T6276] el0t_64_sync+0x1a0/0x1a4 [ 232.217728][ T6276] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.219785][ T6276] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.369026][ T6278] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.370600][ T6278] CPU: 0 PID: 6278 Comm: syz.1.661 Not tainted syzkaller #0 [ 232.371732][ T6278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.373409][ T6278] Call trace: [ 232.373937][ T6278] dump_backtrace+0x0/0x458 [ 232.374595][ T6278] show_stack+0x2c/0x3c [ 232.375219][ T6278] __dump_stack+0x30/0x40 [ 232.375936][ T6278] dump_stack_lvl+0xf4/0x15c [ 232.376646][ T6278] dump_stack+0x1c/0x5c [ 232.377251][ T6278] sysfs_create_dir_ns+0x244/0x264 [ 232.378109][ T6278] kobject_add_internal+0x5ac/0xc3c [ 232.378947][ T6278] kobject_init_and_add+0x124/0x190 [ 232.379814][ T6278] gfs2_sys_fs_add+0x200/0x41c [ 232.380611][ T6278] gfs2_fill_super+0xddc/0x1a18 [ 232.381394][ T6278] get_tree_bdev+0x358/0x544 [ 232.382177][ T6278] gfs2_get_tree+0x54/0x1b4 [ 232.382930][ T6278] vfs_get_tree+0x90/0x274 [ 232.383685][ T6278] do_new_mount+0x228/0x810 [ 232.384453][ T6278] path_mount+0x5bc/0x1008 [ 232.385189][ T6278] __arm64_sys_mount+0x514/0x5f0 [ 232.385971][ T6278] invoke_syscall+0x98/0x2b0 [ 232.386724][ T6278] el0_svc_common+0x138/0x258 [ 232.387467][ T6278] do_el0_svc+0x58/0x13c [ 232.388138][ T6278] el0_svc+0x78/0x1d0 [ 232.388738][ T6278] el0t_64_sync_handler+0xcc/0xe4 [ 232.389529][ T6278] el0t_64_sync+0x1a0/0x1a4 [ 232.391750][ T6278] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.393762][ T6278] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.620515][ T6280] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.621766][ T6280] CPU: 1 PID: 6280 Comm: syz.1.662 Not tainted syzkaller #0 [ 232.622887][ T6280] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.624491][ T6280] Call trace: [ 232.624966][ T6280] dump_backtrace+0x0/0x458 [ 232.625673][ T6280] show_stack+0x2c/0x3c [ 232.626322][ T6280] __dump_stack+0x30/0x40 [ 232.627018][ T6280] dump_stack_lvl+0xf4/0x15c [ 232.627825][ T6280] dump_stack+0x1c/0x5c [ 232.628506][ T6280] sysfs_create_dir_ns+0x244/0x264 [ 232.629342][ T6280] kobject_add_internal+0x5ac/0xc3c [ 232.630214][ T6280] kobject_init_and_add+0x124/0x190 [ 232.631102][ T6280] gfs2_sys_fs_add+0x200/0x41c [ 232.631874][ T6280] gfs2_fill_super+0xddc/0x1a18 [ 232.632687][ T6280] get_tree_bdev+0x358/0x544 [ 232.633483][ T6280] gfs2_get_tree+0x54/0x1b4 [ 232.634247][ T6280] vfs_get_tree+0x90/0x274 [ 232.635020][ T6280] do_new_mount+0x228/0x810 [ 232.635812][ T6280] path_mount+0x5bc/0x1008 [ 232.636569][ T6280] __arm64_sys_mount+0x514/0x5f0 [ 232.637369][ T6280] invoke_syscall+0x98/0x2b0 [ 232.638144][ T6280] el0_svc_common+0x138/0x258 [ 232.638901][ T6280] do_el0_svc+0x58/0x13c [ 232.639600][ T6280] el0_svc+0x78/0x1d0 [ 232.640218][ T6280] el0t_64_sync_handler+0xcc/0xe4 [ 232.640978][ T6280] el0t_64_sync+0x1a0/0x1a4 [ 232.642587][ T6280] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.644598][ T6280] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.818870][ T6282] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.820292][ T6282] CPU: 0 PID: 6282 Comm: syz.1.663 Not tainted syzkaller #0 [ 232.821373][ T6282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.822947][ T6282] Call trace: [ 232.823466][ T6282] dump_backtrace+0x0/0x458 [ 232.824218][ T6282] show_stack+0x2c/0x3c [ 232.824881][ T6282] __dump_stack+0x30/0x40 [ 232.825583][ T6282] dump_stack_lvl+0xf4/0x15c [ 232.826356][ T6282] dump_stack+0x1c/0x5c [ 232.827040][ T6282] sysfs_create_dir_ns+0x244/0x264 [ 232.827921][ T6282] kobject_add_internal+0x5ac/0xc3c [ 232.828791][ T6282] kobject_init_and_add+0x124/0x190 [ 232.829675][ T6282] gfs2_sys_fs_add+0x200/0x41c [ 232.830487][ T6282] gfs2_fill_super+0xddc/0x1a18 [ 232.831310][ T6282] get_tree_bdev+0x358/0x544 [ 232.832099][ T6282] gfs2_get_tree+0x54/0x1b4 [ 232.832775][ T6282] vfs_get_tree+0x90/0x274 [ 232.833544][ T6282] do_new_mount+0x228/0x810 [ 232.834296][ T6282] path_mount+0x5bc/0x1008 [ 232.834974][ T6282] __arm64_sys_mount+0x514/0x5f0 [ 232.835769][ T6282] invoke_syscall+0x98/0x2b0 [ 232.836501][ T6282] el0_svc_common+0x138/0x258 [ 232.837215][ T6282] do_el0_svc+0x58/0x13c [ 232.837910][ T6282] el0_svc+0x78/0x1d0 [ 232.838565][ T6282] el0t_64_sync_handler+0xcc/0xe4 [ 232.839412][ T6282] el0t_64_sync+0x1a0/0x1a4 [ 232.841741][ T6282] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.843647][ T6282] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.075258][ T6284] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.076501][ T6284] CPU: 1 PID: 6284 Comm: syz.1.664 Not tainted syzkaller #0 [ 233.077811][ T6284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.079399][ T6284] Call trace: [ 233.079944][ T6284] dump_backtrace+0x0/0x458 [ 233.080662][ T6284] show_stack+0x2c/0x3c [ 233.081351][ T6284] __dump_stack+0x30/0x40 [ 233.082089][ T6284] dump_stack_lvl+0xf4/0x15c [ 233.082913][ T6284] dump_stack+0x1c/0x5c [ 233.083590][ T6284] sysfs_create_dir_ns+0x244/0x264 [ 233.084407][ T6284] kobject_add_internal+0x5ac/0xc3c [ 233.085316][ T6284] kobject_init_and_add+0x124/0x190 [ 233.086214][ T6284] gfs2_sys_fs_add+0x200/0x41c [ 233.087049][ T6284] gfs2_fill_super+0xddc/0x1a18 [ 233.087917][ T6284] get_tree_bdev+0x358/0x544 [ 233.088689][ T6284] gfs2_get_tree+0x54/0x1b4 [ 233.089460][ T6284] vfs_get_tree+0x90/0x274 [ 233.090164][ T6284] do_new_mount+0x228/0x810 [ 233.090887][ T6284] path_mount+0x5bc/0x1008 [ 233.091622][ T6284] __arm64_sys_mount+0x514/0x5f0 [ 233.092504][ T6284] invoke_syscall+0x98/0x2b0 [ 233.093280][ T6284] el0_svc_common+0x138/0x258 [ 233.094141][ T6284] do_el0_svc+0x58/0x13c [ 233.094868][ T6284] el0_svc+0x78/0x1d0 [ 233.095477][ T6284] el0t_64_sync_handler+0xcc/0xe4 [ 233.096394][ T6284] el0t_64_sync+0x1a0/0x1a4 [ 233.097907][ T6284] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.101233][ T6284] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.236295][ T6286] set_capacity_and_notify: 15 callbacks suppressed [ 233.236306][ T6286] loop1: detected capacity change from 0 to 32768 [ 233.281044][ T6286] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.282385][ T6286] CPU: 1 PID: 6286 Comm: syz.1.665 Not tainted syzkaller #0 [ 233.283672][ T6286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.285444][ T6286] Call trace: [ 233.285981][ T6286] dump_backtrace+0x0/0x458 [ 233.286694][ T6286] show_stack+0x2c/0x3c [ 233.287336][ T6286] __dump_stack+0x30/0x40 [ 233.288040][ T6286] dump_stack_lvl+0xf4/0x15c [ 233.288834][ T6286] dump_stack+0x1c/0x5c [ 233.289499][ T6286] sysfs_create_dir_ns+0x244/0x264 [ 233.290349][ T6286] kobject_add_internal+0x5ac/0xc3c [ 233.291291][ T6286] kobject_init_and_add+0x124/0x190 [ 233.292127][ T6286] gfs2_sys_fs_add+0x200/0x41c [ 233.292942][ T6286] gfs2_fill_super+0xddc/0x1a18 [ 233.293736][ T6286] get_tree_bdev+0x358/0x544 [ 233.294489][ T6286] gfs2_get_tree+0x54/0x1b4 [ 233.295215][ T6286] vfs_get_tree+0x90/0x274 [ 233.295998][ T6286] do_new_mount+0x228/0x810 [ 233.296736][ T6286] path_mount+0x5bc/0x1008 [ 233.297591][ T6286] __arm64_sys_mount+0x514/0x5f0 [ 233.298508][ T6286] invoke_syscall+0x98/0x2b0 [ 233.299253][ T6286] el0_svc_common+0x138/0x258 [ 233.300042][ T6286] do_el0_svc+0x58/0x13c [ 233.300730][ T6286] el0_svc+0x78/0x1d0 [ 233.301420][ T6286] el0t_64_sync_handler+0xcc/0xe4 [ 233.302278][ T6286] el0t_64_sync+0x1a0/0x1a4 [ 233.304588][ T6286] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.306726][ T6286] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.448287][ T6288] loop1: detected capacity change from 0 to 32768 [ 233.544310][ T6288] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.545484][ T6288] CPU: 0 PID: 6288 Comm: syz.1.666 Not tainted syzkaller #0 [ 233.546653][ T6288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.548248][ T6288] Call trace: [ 233.548765][ T6288] dump_backtrace+0x0/0x458 [ 233.549456][ T6288] show_stack+0x2c/0x3c [ 233.550164][ T6288] __dump_stack+0x30/0x40 [ 233.550850][ T6288] dump_stack_lvl+0xf4/0x15c [ 233.551637][ T6288] dump_stack+0x1c/0x5c [ 233.552351][ T6288] sysfs_create_dir_ns+0x244/0x264 [ 233.553228][ T6288] kobject_add_internal+0x5ac/0xc3c [ 233.554074][ T6288] kobject_init_and_add+0x124/0x190 [ 233.554893][ T6288] gfs2_sys_fs_add+0x200/0x41c [ 233.555628][ T6288] gfs2_fill_super+0xddc/0x1a18 [ 233.556408][ T6288] get_tree_bdev+0x358/0x544 [ 233.557142][ T6288] gfs2_get_tree+0x54/0x1b4 [ 233.557855][ T6288] vfs_get_tree+0x90/0x274 [ 233.558626][ T6288] do_new_mount+0x228/0x810 [ 233.559403][ T6288] path_mount+0x5bc/0x1008 [ 233.560134][ T6288] __arm64_sys_mount+0x514/0x5f0 [ 233.560945][ T6288] invoke_syscall+0x98/0x2b0 [ 233.561723][ T6288] el0_svc_common+0x138/0x258 [ 233.562473][ T6288] do_el0_svc+0x58/0x13c [ 233.563204][ T6288] el0_svc+0x78/0x1d0 [ 233.563877][ T6288] el0t_64_sync_handler+0xcc/0xe4 [ 233.564680][ T6288] el0t_64_sync+0x1a0/0x1a4 [ 233.567238][ T6288] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.569433][ T6288] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.705200][ T6290] loop1: detected capacity change from 0 to 32768 [ 233.805494][ T6290] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.806677][ T6290] CPU: 0 PID: 6290 Comm: syz.1.667 Not tainted syzkaller #0 [ 233.807764][ T6290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.809177][ T6290] Call trace: [ 233.809665][ T6290] dump_backtrace+0x0/0x458 [ 233.810312][ T6290] show_stack+0x2c/0x3c [ 233.810950][ T6290] __dump_stack+0x30/0x40 [ 233.811622][ T6290] dump_stack_lvl+0xf4/0x15c [ 233.812308][ T6290] dump_stack+0x1c/0x5c [ 233.812933][ T6290] sysfs_create_dir_ns+0x244/0x264 [ 233.813668][ T6290] kobject_add_internal+0x5ac/0xc3c [ 233.814405][ T6290] kobject_init_and_add+0x124/0x190 [ 233.815125][ T6290] gfs2_sys_fs_add+0x200/0x41c [ 233.815898][ T6290] gfs2_fill_super+0xddc/0x1a18 [ 233.816659][ T6290] get_tree_bdev+0x358/0x544 [ 233.817374][ T6290] gfs2_get_tree+0x54/0x1b4 [ 233.818119][ T6290] vfs_get_tree+0x90/0x274 [ 233.818836][ T6290] do_new_mount+0x228/0x810 [ 233.819531][ T6290] path_mount+0x5bc/0x1008 [ 233.820194][ T6290] __arm64_sys_mount+0x514/0x5f0 [ 233.820892][ T6290] invoke_syscall+0x98/0x2b0 [ 233.821628][ T6290] el0_svc_common+0x138/0x258 [ 233.822429][ T6290] do_el0_svc+0x58/0x13c [ 233.823101][ T6290] el0_svc+0x78/0x1d0 [ 233.823736][ T6290] el0t_64_sync_handler+0xcc/0xe4 [ 233.824584][ T6290] el0t_64_sync+0x1a0/0x1a4 [ 233.826854][ T6290] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.828975][ T6290] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.964718][ T6292] loop1: detected capacity change from 0 to 32768 [ 234.014512][ T6292] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.015805][ T6292] CPU: 0 PID: 6292 Comm: syz.1.668 Not tainted syzkaller #0 [ 234.016967][ T6292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.018535][ T6292] Call trace: [ 234.019042][ T6292] dump_backtrace+0x0/0x458 [ 234.019741][ T6292] show_stack+0x2c/0x3c [ 234.020445][ T6292] __dump_stack+0x30/0x40 [ 234.021133][ T6292] dump_stack_lvl+0xf4/0x15c [ 234.021878][ T6292] dump_stack+0x1c/0x5c [ 234.022526][ T6292] sysfs_create_dir_ns+0x244/0x264 [ 234.023410][ T6292] kobject_add_internal+0x5ac/0xc3c [ 234.024197][ T6292] kobject_init_and_add+0x124/0x190 [ 234.025008][ T6292] gfs2_sys_fs_add+0x200/0x41c [ 234.025742][ T6292] gfs2_fill_super+0xddc/0x1a18 [ 234.026530][ T6292] get_tree_bdev+0x358/0x544 [ 234.027242][ T6292] gfs2_get_tree+0x54/0x1b4 [ 234.027978][ T6292] vfs_get_tree+0x90/0x274 [ 234.028666][ T6292] do_new_mount+0x228/0x810 [ 234.029355][ T6292] path_mount+0x5bc/0x1008 [ 234.030073][ T6292] __arm64_sys_mount+0x514/0x5f0 [ 234.030896][ T6292] invoke_syscall+0x98/0x2b0 [ 234.031715][ T6292] el0_svc_common+0x138/0x258 [ 234.032558][ T6292] do_el0_svc+0x58/0x13c [ 234.033279][ T6292] el0_svc+0x78/0x1d0 [ 234.033895][ T6292] el0t_64_sync_handler+0xcc/0xe4 [ 234.034703][ T6292] el0t_64_sync+0x1a0/0x1a4 [ 234.036837][ T6292] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.038766][ T6292] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.177814][ T6294] loop1: detected capacity change from 0 to 32768 [ 234.185562][ T6294] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.186763][ T6294] CPU: 1 PID: 6294 Comm: syz.1.669 Not tainted syzkaller #0 [ 234.187833][ T6294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.189561][ T6294] Call trace: [ 234.190109][ T6294] dump_backtrace+0x0/0x458 [ 234.190873][ T6294] show_stack+0x2c/0x3c [ 234.191599][ T6294] __dump_stack+0x30/0x40 [ 234.192272][ T6294] dump_stack_lvl+0xf4/0x15c [ 234.192994][ T6294] dump_stack+0x1c/0x5c [ 234.193709][ T6294] sysfs_create_dir_ns+0x244/0x264 [ 234.194526][ T6294] kobject_add_internal+0x5ac/0xc3c [ 234.195397][ T6294] kobject_init_and_add+0x124/0x190 [ 234.196272][ T6294] gfs2_sys_fs_add+0x200/0x41c [ 234.197077][ T6294] gfs2_fill_super+0xddc/0x1a18 [ 234.197900][ T6294] get_tree_bdev+0x358/0x544 [ 234.198674][ T6294] gfs2_get_tree+0x54/0x1b4 [ 234.199417][ T6294] vfs_get_tree+0x90/0x274 [ 234.200137][ T6294] do_new_mount+0x228/0x810 [ 234.200827][ T6294] path_mount+0x5bc/0x1008 [ 234.201501][ T6294] __arm64_sys_mount+0x514/0x5f0 [ 234.202332][ T6294] invoke_syscall+0x98/0x2b0 [ 234.203070][ T6294] el0_svc_common+0x138/0x258 [ 234.203823][ T6294] do_el0_svc+0x58/0x13c [ 234.204481][ T6294] el0_svc+0x78/0x1d0 [ 234.205142][ T6294] el0t_64_sync_handler+0xcc/0xe4 [ 234.205966][ T6294] el0t_64_sync+0x1a0/0x1a4 [ 234.207035][ T6294] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.209024][ T6294] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.353055][ T6296] loop1: detected capacity change from 0 to 32768 [ 234.361736][ T6296] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.362933][ T6296] CPU: 1 PID: 6296 Comm: syz.1.670 Not tainted syzkaller #0 [ 234.364181][ T6296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.365823][ T6296] Call trace: [ 234.366373][ T6296] dump_backtrace+0x0/0x458 [ 234.367131][ T6296] show_stack+0x2c/0x3c [ 234.367748][ T6296] __dump_stack+0x30/0x40 [ 234.368431][ T6296] dump_stack_lvl+0xf4/0x15c [ 234.369089][ T6296] dump_stack+0x1c/0x5c [ 234.369695][ T6296] sysfs_create_dir_ns+0x244/0x264 [ 234.370444][ T6296] kobject_add_internal+0x5ac/0xc3c [ 234.371258][ T6296] kobject_init_and_add+0x124/0x190 [ 234.372062][ T6296] gfs2_sys_fs_add+0x200/0x41c [ 234.372788][ T6296] gfs2_fill_super+0xddc/0x1a18 [ 234.373538][ T6296] get_tree_bdev+0x358/0x544 [ 234.374239][ T6296] gfs2_get_tree+0x54/0x1b4 [ 234.375002][ T6296] vfs_get_tree+0x90/0x274 [ 234.375721][ T6296] do_new_mount+0x228/0x810 [ 234.376464][ T6296] path_mount+0x5bc/0x1008 [ 234.377152][ T6296] __arm64_sys_mount+0x514/0x5f0 [ 234.377941][ T6296] invoke_syscall+0x98/0x2b0 [ 234.378708][ T6296] el0_svc_common+0x138/0x258 [ 234.379517][ T6296] do_el0_svc+0x58/0x13c [ 234.380219][ T6296] el0_svc+0x78/0x1d0 [ 234.380894][ T6296] el0t_64_sync_handler+0xcc/0xe4 [ 234.381690][ T6296] el0t_64_sync+0x1a0/0x1a4 [ 234.383028][ T6296] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.385195][ T6296] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.523711][ T6298] loop1: detected capacity change from 0 to 32768 [ 234.573758][ T6298] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.576224][ T6298] CPU: 1 PID: 6298 Comm: syz.1.671 Not tainted syzkaller #0 [ 234.577446][ T6298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.578987][ T6298] Call trace: [ 234.579515][ T6298] dump_backtrace+0x0/0x458 [ 234.580261][ T6298] show_stack+0x2c/0x3c [ 234.580944][ T6298] __dump_stack+0x30/0x40 [ 234.581723][ T6298] dump_stack_lvl+0xf4/0x15c [ 234.582568][ T6298] dump_stack+0x1c/0x5c [ 234.583296][ T6298] sysfs_create_dir_ns+0x244/0x264 [ 234.584146][ T6298] kobject_add_internal+0x5ac/0xc3c [ 234.585069][ T6298] kobject_init_and_add+0x124/0x190 [ 234.585903][ T6298] gfs2_sys_fs_add+0x200/0x41c [ 234.586675][ T6298] gfs2_fill_super+0xddc/0x1a18 [ 234.587472][ T6298] get_tree_bdev+0x358/0x544 [ 234.588272][ T6298] gfs2_get_tree+0x54/0x1b4 [ 234.589030][ T6298] vfs_get_tree+0x90/0x274 [ 234.589779][ T6298] do_new_mount+0x228/0x810 [ 234.590509][ T6298] path_mount+0x5bc/0x1008 [ 234.591257][ T6298] __arm64_sys_mount+0x514/0x5f0 [ 234.592130][ T6298] invoke_syscall+0x98/0x2b0 [ 234.592934][ T6298] el0_svc_common+0x138/0x258 [ 234.593693][ T6298] do_el0_svc+0x58/0x13c [ 234.594456][ T6298] el0_svc+0x78/0x1d0 [ 234.595100][ T6298] el0t_64_sync_handler+0xcc/0xe4 [ 234.595914][ T6298] el0t_64_sync+0x1a0/0x1a4 [ 234.598184][ T6298] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.600166][ T6298] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.736719][ T6300] loop1: detected capacity change from 0 to 32768 [ 234.784643][ T6300] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.785896][ T6300] CPU: 1 PID: 6300 Comm: syz.1.672 Not tainted syzkaller #0 [ 234.787063][ T6300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.788677][ T6300] Call trace: [ 234.789187][ T6300] dump_backtrace+0x0/0x458 [ 234.790021][ T6300] show_stack+0x2c/0x3c [ 234.790776][ T6300] __dump_stack+0x30/0x40 [ 234.791586][ T6300] dump_stack_lvl+0xf4/0x15c [ 234.792394][ T6300] dump_stack+0x1c/0x5c [ 234.793100][ T6300] sysfs_create_dir_ns+0x244/0x264 [ 234.793937][ T6300] kobject_add_internal+0x5ac/0xc3c [ 234.794804][ T6300] kobject_init_and_add+0x124/0x190 [ 234.795785][ T6300] gfs2_sys_fs_add+0x200/0x41c [ 234.796782][ T6300] gfs2_fill_super+0xddc/0x1a18 [ 234.797632][ T6300] get_tree_bdev+0x358/0x544 [ 234.798403][ T6300] gfs2_get_tree+0x54/0x1b4 [ 234.799136][ T6300] vfs_get_tree+0x90/0x274 [ 234.799923][ T6300] do_new_mount+0x228/0x810 [ 234.800675][ T6300] path_mount+0x5bc/0x1008 [ 234.801418][ T6300] __arm64_sys_mount+0x514/0x5f0 [ 234.802281][ T6300] invoke_syscall+0x98/0x2b0 [ 234.803127][ T6300] el0_svc_common+0x138/0x258 [ 234.803938][ T6300] do_el0_svc+0x58/0x13c [ 234.804625][ T6300] el0_svc+0x78/0x1d0 [ 234.805353][ T6300] el0t_64_sync_handler+0xcc/0xe4 [ 234.806220][ T6300] el0t_64_sync+0x1a0/0x1a4 [ 234.808344][ T6300] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.810561][ T6300] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.071518][ T6302] loop1: detected capacity change from 0 to 32768 [ 235.114233][ T6302] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.115438][ T6302] CPU: 0 PID: 6302 Comm: syz.1.673 Not tainted syzkaller #0 [ 235.116632][ T6302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.118165][ T6302] Call trace: [ 235.118698][ T6302] dump_backtrace+0x0/0x458 [ 235.119376][ T6302] show_stack+0x2c/0x3c [ 235.120075][ T6302] __dump_stack+0x30/0x40 [ 235.120744][ T6302] dump_stack_lvl+0xf4/0x15c [ 235.121495][ T6302] dump_stack+0x1c/0x5c [ 235.122174][ T6302] sysfs_create_dir_ns+0x244/0x264 [ 235.122916][ T6302] kobject_add_internal+0x5ac/0xc3c [ 235.123662][ T6302] kobject_init_and_add+0x124/0x190 [ 235.124417][ T6302] gfs2_sys_fs_add+0x200/0x41c [ 235.125086][ T6302] gfs2_fill_super+0xddc/0x1a18 [ 235.125872][ T6302] get_tree_bdev+0x358/0x544 [ 235.126617][ T6302] gfs2_get_tree+0x54/0x1b4 [ 235.127393][ T6302] vfs_get_tree+0x90/0x274 [ 235.128111][ T6302] do_new_mount+0x228/0x810 [ 235.128899][ T6302] path_mount+0x5bc/0x1008 [ 235.129638][ T6302] __arm64_sys_mount+0x514/0x5f0 [ 235.130428][ T6302] invoke_syscall+0x98/0x2b0 [ 235.131140][ T6302] el0_svc_common+0x138/0x258 [ 235.131845][ T6302] do_el0_svc+0x58/0x13c [ 235.132522][ T6302] el0_svc+0x78/0x1d0 [ 235.133145][ T6302] el0t_64_sync_handler+0xcc/0xe4 [ 235.133931][ T6302] el0t_64_sync+0x1a0/0x1a4 [ 235.136441][ T6302] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.138502][ T6302] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.277936][ T6304] loop1: detected capacity change from 0 to 32768 [ 235.375908][ T6304] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.377154][ T6304] CPU: 1 PID: 6304 Comm: syz.1.674 Not tainted syzkaller #0 [ 235.378300][ T6304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.379998][ T6304] Call trace: [ 235.380517][ T6304] dump_backtrace+0x0/0x458 [ 235.381209][ T6304] show_stack+0x2c/0x3c [ 235.381844][ T6304] __dump_stack+0x30/0x40 [ 235.382510][ T6304] dump_stack_lvl+0xf4/0x15c [ 235.383248][ T6304] dump_stack+0x1c/0x5c [ 235.383904][ T6304] sysfs_create_dir_ns+0x244/0x264 [ 235.384779][ T6304] kobject_add_internal+0x5ac/0xc3c [ 235.385659][ T6304] kobject_init_and_add+0x124/0x190 [ 235.386534][ T6304] gfs2_sys_fs_add+0x200/0x41c [ 235.387298][ T6304] gfs2_fill_super+0xddc/0x1a18 [ 235.388091][ T6304] get_tree_bdev+0x358/0x544 [ 235.388852][ T6304] gfs2_get_tree+0x54/0x1b4 [ 235.389635][ T6304] vfs_get_tree+0x90/0x274 [ 235.390363][ T6304] do_new_mount+0x228/0x810 [ 235.391121][ T6304] path_mount+0x5bc/0x1008 [ 235.391813][ T6304] __arm64_sys_mount+0x514/0x5f0 [ 235.392698][ T6304] invoke_syscall+0x98/0x2b0 [ 235.393534][ T6304] el0_svc_common+0x138/0x258 [ 235.394377][ T6304] do_el0_svc+0x58/0x13c [ 235.395091][ T6304] el0_svc+0x78/0x1d0 [ 235.395724][ T6304] el0t_64_sync_handler+0xcc/0xe4 [ 235.396531][ T6304] el0t_64_sync+0x1a0/0x1a4 [ 235.399112][ T6304] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.401249][ T6304] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.590831][ T6306] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.592063][ T6306] CPU: 1 PID: 6306 Comm: syz.1.675 Not tainted syzkaller #0 [ 235.593130][ T6306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.594706][ T6306] Call trace: [ 235.595252][ T6306] dump_backtrace+0x0/0x458 [ 235.596006][ T6306] show_stack+0x2c/0x3c [ 235.596684][ T6306] __dump_stack+0x30/0x40 [ 235.597346][ T6306] dump_stack_lvl+0xf4/0x15c [ 235.598072][ T6306] dump_stack+0x1c/0x5c [ 235.598711][ T6306] sysfs_create_dir_ns+0x244/0x264 [ 235.599499][ T6306] kobject_add_internal+0x5ac/0xc3c [ 235.600381][ T6306] kobject_init_and_add+0x124/0x190 [ 235.601239][ T6306] gfs2_sys_fs_add+0x200/0x41c [ 235.601998][ T6306] gfs2_fill_super+0xddc/0x1a18 [ 235.602801][ T6306] get_tree_bdev+0x358/0x544 [ 235.603514][ T6306] gfs2_get_tree+0x54/0x1b4 [ 235.604266][ T6306] vfs_get_tree+0x90/0x274 [ 235.605010][ T6306] do_new_mount+0x228/0x810 [ 235.605784][ T6306] path_mount+0x5bc/0x1008 [ 235.606512][ T6306] __arm64_sys_mount+0x514/0x5f0 [ 235.607362][ T6306] invoke_syscall+0x98/0x2b0 [ 235.608137][ T6306] el0_svc_common+0x138/0x258 [ 235.608950][ T6306] do_el0_svc+0x58/0x13c [ 235.609695][ T6306] el0_svc+0x78/0x1d0 [ 235.610359][ T6306] el0t_64_sync_handler+0xcc/0xe4 [ 235.611164][ T6306] el0t_64_sync+0x1a0/0x1a4 [ 235.614200][ T6306] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.616281][ T6306] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.768993][ T6308] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.770370][ T6308] CPU: 0 PID: 6308 Comm: syz.1.676 Not tainted syzkaller #0 [ 235.771607][ T6308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.773273][ T6308] Call trace: [ 235.773828][ T6308] dump_backtrace+0x0/0x458 [ 235.774585][ T6308] show_stack+0x2c/0x3c [ 235.775304][ T6308] __dump_stack+0x30/0x40 [ 235.776059][ T6308] dump_stack_lvl+0xf4/0x15c [ 235.776800][ T6308] dump_stack+0x1c/0x5c [ 235.777493][ T6308] sysfs_create_dir_ns+0x244/0x264 [ 235.778348][ T6308] kobject_add_internal+0x5ac/0xc3c [ 235.779253][ T6308] kobject_init_and_add+0x124/0x190 [ 235.780101][ T6308] gfs2_sys_fs_add+0x200/0x41c [ 235.780882][ T6308] gfs2_fill_super+0xddc/0x1a18 [ 235.781689][ T6308] get_tree_bdev+0x358/0x544 [ 235.782473][ T6308] gfs2_get_tree+0x54/0x1b4 [ 235.783225][ T6308] vfs_get_tree+0x90/0x274 [ 235.783934][ T6308] do_new_mount+0x228/0x810 [ 235.784664][ T6308] path_mount+0x5bc/0x1008 [ 235.785372][ T6308] __arm64_sys_mount+0x514/0x5f0 [ 235.786094][ T6308] invoke_syscall+0x98/0x2b0 [ 235.786800][ T6308] el0_svc_common+0x138/0x258 [ 235.787511][ T6308] do_el0_svc+0x58/0x13c [ 235.788156][ T6308] el0_svc+0x78/0x1d0 [ 235.788785][ T6308] el0t_64_sync_handler+0xcc/0xe4 [ 235.789537][ T6308] el0t_64_sync+0x1a0/0x1a4 [ 235.790492][ T6308] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.792682][ T6308] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.939607][ T6310] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.940870][ T6310] CPU: 1 PID: 6310 Comm: syz.1.677 Not tainted syzkaller #0 [ 235.941989][ T6310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.943609][ T6310] Call trace: [ 235.944093][ T6310] dump_backtrace+0x0/0x458 [ 235.944918][ T6310] show_stack+0x2c/0x3c [ 235.945613][ T6310] __dump_stack+0x30/0x40 [ 235.946275][ T6310] dump_stack_lvl+0xf4/0x15c [ 235.946925][ T6310] dump_stack+0x1c/0x5c [ 235.947548][ T6310] sysfs_create_dir_ns+0x244/0x264 [ 235.948389][ T6310] kobject_add_internal+0x5ac/0xc3c [ 235.949272][ T6310] kobject_init_and_add+0x124/0x190 [ 235.950088][ T6310] gfs2_sys_fs_add+0x200/0x41c [ 235.950872][ T6310] gfs2_fill_super+0xddc/0x1a18 [ 235.951710][ T6310] get_tree_bdev+0x358/0x544 [ 235.952481][ T6310] gfs2_get_tree+0x54/0x1b4 [ 235.953260][ T6310] vfs_get_tree+0x90/0x274 [ 235.953980][ T6310] do_new_mount+0x228/0x810 [ 235.954685][ T6310] path_mount+0x5bc/0x1008 [ 235.955397][ T6310] __arm64_sys_mount+0x514/0x5f0 [ 235.956276][ T6310] invoke_syscall+0x98/0x2b0 [ 235.957064][ T6310] el0_svc_common+0x138/0x258 [ 235.957881][ T6310] do_el0_svc+0x58/0x13c [ 235.958575][ T6310] el0_svc+0x78/0x1d0 [ 235.959275][ T6310] el0t_64_sync_handler+0xcc/0xe4 [ 235.960139][ T6310] el0t_64_sync+0x1a0/0x1a4 [ 235.962455][ T6310] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.964606][ T6310] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.110485][ T6312] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.111736][ T6312] CPU: 0 PID: 6312 Comm: syz.1.678 Not tainted syzkaller #0 [ 236.112940][ T6312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.114623][ T6312] Call trace: [ 236.115183][ T6312] dump_backtrace+0x0/0x458 [ 236.116004][ T6312] show_stack+0x2c/0x3c [ 236.116708][ T6312] __dump_stack+0x30/0x40 [ 236.117430][ T6312] dump_stack_lvl+0xf4/0x15c [ 236.118195][ T6312] dump_stack+0x1c/0x5c [ 236.118883][ T6312] sysfs_create_dir_ns+0x244/0x264 [ 236.119714][ T6312] kobject_add_internal+0x5ac/0xc3c [ 236.120560][ T6312] kobject_init_and_add+0x124/0x190 [ 236.121355][ T6312] gfs2_sys_fs_add+0x200/0x41c [ 236.122220][ T6312] gfs2_fill_super+0xddc/0x1a18 [ 236.123039][ T6312] get_tree_bdev+0x358/0x544 [ 236.123852][ T6312] gfs2_get_tree+0x54/0x1b4 [ 236.124636][ T6312] vfs_get_tree+0x90/0x274 [ 236.125381][ T6312] do_new_mount+0x228/0x810 [ 236.126109][ T6312] path_mount+0x5bc/0x1008 [ 236.126849][ T6312] __arm64_sys_mount+0x514/0x5f0 [ 236.127656][ T6312] invoke_syscall+0x98/0x2b0 [ 236.128408][ T6312] el0_svc_common+0x138/0x258 [ 236.129207][ T6312] do_el0_svc+0x58/0x13c [ 236.129918][ T6312] el0_svc+0x78/0x1d0 [ 236.130608][ T6312] el0t_64_sync_handler+0xcc/0xe4 [ 236.131410][ T6312] el0t_64_sync+0x1a0/0x1a4 [ 236.132412][ T6312] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.134676][ T6312] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.375456][ T6314] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.376678][ T6314] CPU: 0 PID: 6314 Comm: syz.1.679 Not tainted syzkaller #0 [ 236.377966][ T6314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.379574][ T6314] Call trace: [ 236.380107][ T6314] dump_backtrace+0x0/0x458 [ 236.380791][ T6314] show_stack+0x2c/0x3c [ 236.381474][ T6314] __dump_stack+0x30/0x40 [ 236.382219][ T6314] dump_stack_lvl+0xf4/0x15c [ 236.382985][ T6314] dump_stack+0x1c/0x5c [ 236.383636][ T6314] sysfs_create_dir_ns+0x244/0x264 [ 236.384438][ T6314] kobject_add_internal+0x5ac/0xc3c [ 236.385344][ T6314] kobject_init_and_add+0x124/0x190 [ 236.386245][ T6314] gfs2_sys_fs_add+0x200/0x41c [ 236.387055][ T6314] gfs2_fill_super+0xddc/0x1a18 [ 236.387864][ T6314] get_tree_bdev+0x358/0x544 [ 236.388708][ T6314] gfs2_get_tree+0x54/0x1b4 [ 236.389461][ T6314] vfs_get_tree+0x90/0x274 [ 236.390157][ T6314] do_new_mount+0x228/0x810 [ 236.390919][ T6314] path_mount+0x5bc/0x1008 [ 236.391644][ T6314] __arm64_sys_mount+0x514/0x5f0 [ 236.392523][ T6314] invoke_syscall+0x98/0x2b0 [ 236.393326][ T6314] el0_svc_common+0x138/0x258 [ 236.394061][ T6314] do_el0_svc+0x58/0x13c [ 236.394818][ T6314] el0_svc+0x78/0x1d0 [ 236.395518][ T6314] el0t_64_sync_handler+0xcc/0xe4 [ 236.396363][ T6314] el0t_64_sync+0x1a0/0x1a4 [ 236.397415][ T6314] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.399652][ T6314] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:56 executed programs: 665 [ 236.573126][ T6316] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.574342][ T6316] CPU: 1 PID: 6316 Comm: syz.1.680 Not tainted syzkaller #0 [ 236.575622][ T6316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.577223][ T6316] Call trace: [ 236.577726][ T6316] dump_backtrace+0x0/0x458 [ 236.578455][ T6316] show_stack+0x2c/0x3c [ 236.579127][ T6316] __dump_stack+0x30/0x40 [ 236.579800][ T6316] dump_stack_lvl+0xf4/0x15c [ 236.580606][ T6316] dump_stack+0x1c/0x5c [ 236.581360][ T6316] sysfs_create_dir_ns+0x244/0x264 [ 236.582218][ T6316] kobject_add_internal+0x5ac/0xc3c [ 236.583097][ T6316] kobject_init_and_add+0x124/0x190 [ 236.583916][ T6316] gfs2_sys_fs_add+0x200/0x41c [ 236.584729][ T6316] gfs2_fill_super+0xddc/0x1a18 [ 236.585504][ T6316] get_tree_bdev+0x358/0x544 [ 236.586247][ T6316] gfs2_get_tree+0x54/0x1b4 [ 236.587008][ T6316] vfs_get_tree+0x90/0x274 [ 236.587758][ T6316] do_new_mount+0x228/0x810 [ 236.588514][ T6316] path_mount+0x5bc/0x1008 [ 236.589267][ T6316] __arm64_sys_mount+0x514/0x5f0 [ 236.590119][ T6316] invoke_syscall+0x98/0x2b0 [ 236.590897][ T6316] el0_svc_common+0x138/0x258 [ 236.591606][ T6316] do_el0_svc+0x58/0x13c [ 236.592322][ T6316] el0_svc+0x78/0x1d0 [ 236.593027][ T6316] el0t_64_sync_handler+0xcc/0xe4 [ 236.593816][ T6316] el0t_64_sync+0x1a0/0x1a4 [ 236.595322][ T6316] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.597461][ T6316] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.748690][ T6318] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.750382][ T6318] CPU: 0 PID: 6318 Comm: syz.1.681 Not tainted syzkaller #0 [ 236.751569][ T6318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.753187][ T6318] Call trace: [ 236.753711][ T6318] dump_backtrace+0x0/0x458 [ 236.754435][ T6318] show_stack+0x2c/0x3c [ 236.755109][ T6318] __dump_stack+0x30/0x40 [ 236.755816][ T6318] dump_stack_lvl+0xf4/0x15c [ 236.756592][ T6318] dump_stack+0x1c/0x5c [ 236.757232][ T6318] sysfs_create_dir_ns+0x244/0x264 [ 236.758147][ T6318] kobject_add_internal+0x5ac/0xc3c [ 236.759071][ T6318] kobject_init_and_add+0x124/0x190 [ 236.759918][ T6318] gfs2_sys_fs_add+0x200/0x41c [ 236.760719][ T6318] gfs2_fill_super+0xddc/0x1a18 [ 236.761523][ T6318] get_tree_bdev+0x358/0x544 [ 236.762295][ T6318] gfs2_get_tree+0x54/0x1b4 [ 236.763063][ T6318] vfs_get_tree+0x90/0x274 [ 236.763816][ T6318] do_new_mount+0x228/0x810 [ 236.764562][ T6318] path_mount+0x5bc/0x1008 [ 236.765310][ T6318] __arm64_sys_mount+0x514/0x5f0 [ 236.766141][ T6318] invoke_syscall+0x98/0x2b0 [ 236.766921][ T6318] el0_svc_common+0x138/0x258 [ 236.767680][ T6318] do_el0_svc+0x58/0x13c [ 236.768345][ T6318] el0_svc+0x78/0x1d0 [ 236.768981][ T6318] el0t_64_sync_handler+0xcc/0xe4 [ 236.769795][ T6318] el0t_64_sync+0x1a0/0x1a4 [ 236.770781][ T6318] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.772735][ T6318] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.936791][ T6320] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.938012][ T6320] CPU: 1 PID: 6320 Comm: syz.1.682 Not tainted syzkaller #0 [ 236.939138][ T6320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.940772][ T6320] Call trace: [ 236.941336][ T6320] dump_backtrace+0x0/0x458 [ 236.942058][ T6320] show_stack+0x2c/0x3c [ 236.942743][ T6320] __dump_stack+0x30/0x40 [ 236.943403][ T6320] dump_stack_lvl+0xf4/0x15c [ 236.944110][ T6320] dump_stack+0x1c/0x5c [ 236.944852][ T6320] sysfs_create_dir_ns+0x244/0x264 [ 236.945717][ T6320] kobject_add_internal+0x5ac/0xc3c [ 236.946625][ T6320] kobject_init_and_add+0x124/0x190 [ 236.947533][ T6320] gfs2_sys_fs_add+0x200/0x41c [ 236.948330][ T6320] gfs2_fill_super+0xddc/0x1a18 [ 236.949147][ T6320] get_tree_bdev+0x358/0x544 [ 236.949980][ T6320] gfs2_get_tree+0x54/0x1b4 [ 236.950778][ T6320] vfs_get_tree+0x90/0x274 [ 236.951533][ T6320] do_new_mount+0x228/0x810 [ 236.952303][ T6320] path_mount+0x5bc/0x1008 [ 236.953018][ T6320] __arm64_sys_mount+0x514/0x5f0 [ 236.953855][ T6320] invoke_syscall+0x98/0x2b0 [ 236.954656][ T6320] el0_svc_common+0x138/0x258 [ 236.955435][ T6320] do_el0_svc+0x58/0x13c [ 236.956199][ T6320] el0_svc+0x78/0x1d0 [ 236.957175][ T6320] el0t_64_sync_handler+0xcc/0xe4 [ 236.957976][ T6320] el0t_64_sync+0x1a0/0x1a4 [ 236.960366][ T6320] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.962490][ T6320] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.116143][ T6323] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.117503][ T6323] CPU: 0 PID: 6323 Comm: syz.1.683 Not tainted syzkaller #0 [ 237.118654][ T6323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 237.120329][ T6323] Call trace: [ 237.120860][ T6323] dump_backtrace+0x0/0x458 [ 237.121621][ T6323] show_stack+0x2c/0x3c [ 237.122276][ T6323] __dump_stack+0x30/0x40 [ 237.122945][ T6323] dump_stack_lvl+0xf4/0x15c [ 237.123744][ T6323] dump_stack+0x1c/0x5c [ 237.124442][ T6323] sysfs_create_dir_ns+0x244/0x264 [ 237.125350][ T6323] kobject_add_internal+0x5ac/0xc3c [ 237.126279][ T6323] kobject_init_and_add+0x124/0x190 [ 237.127122][ T6323] gfs2_sys_fs_add+0x200/0x41c [ 237.127893][ T6323] gfs2_fill_super+0xddc/0x1a18 [ 237.128677][ T6323] get_tree_bdev+0x358/0x544 [ 237.129356][ T6323] gfs2_get_tree+0x54/0x1b4 [ 237.130129][ T6323] vfs_get_tree+0x90/0x274 [ 237.130858][ T6323] do_new_mount+0x228/0x810 [ 237.131577][ T6323] path_mount+0x5bc/0x1008 [ 237.132246][ T6323] __arm64_sys_mount+0x514/0x5f0 [ 237.132992][ T6323] invoke_syscall+0x98/0x2b0 [ 237.133757][ T6323] el0_svc_common+0x138/0x258 [ 237.134481][ T6323] do_el0_svc+0x58/0x13c [ 237.135141][ T6323] el0_svc+0x78/0x1d0 [ 237.135808][ T6323] el0t_64_sync_handler+0xcc/0xe4 [ 237.136627][ T6323] el0t_64_sync+0x1a0/0x1a4 [ 237.137589][ T6323] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.139752][ T6323] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.289432][ T6325] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.291958][ T6325] CPU: 0 PID: 6325 Comm: syz.1.684 Not tainted syzkaller #0 [ 237.293073][ T6325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 237.294781][ T6325] Call trace: [ 237.295322][ T6325] dump_backtrace+0x0/0x458 [ 237.296093][ T6325] show_stack+0x2c/0x3c [ 237.296821][ T6325] __dump_stack+0x30/0x40 [ 237.297539][ T6325] dump_stack_lvl+0xf4/0x15c [ 237.298304][ T6325] dump_stack+0x1c/0x5c [ 237.298978][ T6325] sysfs_create_dir_ns+0x244/0x264 [ 237.299829][ T6325] kobject_add_internal+0x5ac/0xc3c [ 237.300690][ T6325] kobject_init_and_add+0x124/0x190 [ 237.301574][ T6325] gfs2_sys_fs_add+0x200/0x41c [ 237.302333][ T6325] gfs2_fill_super+0xddc/0x1a18 [ 237.303110][ T6325] get_tree_bdev+0x358/0x544 [ 237.303856][ T6325] gfs2_get_tree+0x54/0x1b4 [ 237.304575][ T6325] vfs_get_tree+0x90/0x274 [ 237.305318][ T6325] do_new_mount+0x228/0x810 [ 237.306053][ T6325] path_mount+0x5bc/0x1008 [ 237.306769][ T6325] __arm64_sys_mount+0x514/0x5f0 [ 237.307571][ T6325] invoke_syscall+0x98/0x2b0 [ 237.308323][ T6325] el0_svc_common+0x138/0x258 [ 237.309141][ T6325] do_el0_svc+0x58/0x13c [ 237.309866][ T6325] el0_svc+0x78/0x1d0 [ 237.310484][ T6325] el0t_64_sync_handler+0xcc/0xe4 [ 237.311320][ T6325] el0t_64_sync+0x1a0/0x1a4 [ 237.312558][ T6325] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.314798][ T6325] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.561152][ T6327] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.562365][ T6327] CPU: 0 PID: 6327 Comm: syz.1.685 Not tainted syzkaller #0 [ 237.563461][ T6327] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 237.565202][ T6327] Call trace: [ 237.565789][ T6327] dump_backtrace+0x0/0x458 [ 237.566566][ T6327] show_stack+0x2c/0x3c [ 237.567243][ T6327] __dump_stack+0x30/0x40 [ 237.567978][ T6327] dump_stack_lvl+0xf4/0x15c [ 237.568727][ T6327] dump_stack+0x1c/0x5c [ 237.569425][ T6327] sysfs_create_dir_ns+0x244/0x264 [ 237.570238][ T6327] kobject_add_internal+0x5ac/0xc3c [ 237.571151][ T6327] kobject_init_and_add+0x124/0x190 [ 237.572060][ T6327] gfs2_sys_fs_add+0x200/0x41c [ 237.572826][ T6327] gfs2_fill_super+0xddc/0x1a18 [ 237.573671][ T6327] get_tree_bdev+0x358/0x544 [ 237.574411][ T6327] gfs2_get_tree+0x54/0x1b4 [ 237.575136][ T6327] vfs_get_tree+0x90/0x274 [ 237.575873][ T6327] do_new_mount+0x228/0x810 [ 237.576614][ T6327] path_mount+0x5bc/0x1008 [ 237.577360][ T6327] __arm64_sys_mount+0x514/0x5f0 [ 237.578158][ T6327] invoke_syscall+0x98/0x2b0 [ 237.578937][ T6327] el0_svc_common+0x138/0x258 [ 237.579754][ T6327] do_el0_svc+0x58/0x13c [ 237.580432][ T6327] el0_svc+0x78/0x1d0 [ 237.581100][ T6327] el0t_64_sync_handler+0xcc/0xe4 [ 237.581872][ T6327] el0t_64_sync+0x1a0/0x1a4 [ 237.583119][ T6327] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.585155][ T6327] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.788325][ T6329] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.792076][ T6329] CPU: 0 PID: 6329 Comm: syz.1.686 Not tainted syzkaller #0 [ 237.793187][ T6329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 237.794785][ T6329] Call trace: [ 237.795302][ T6329] dump_backtrace+0x0/0x458 [ 237.796034][ T6329] show_stack+0x2c/0x3c [ 237.796808][ T6329] __dump_stack+0x30/0x40 [ 237.797593][ T6329] dump_stack_lvl+0xf4/0x15c [ 237.798330][ T6329] dump_stack+0x1c/0x5c [ 237.798961][ T6329] sysfs_create_dir_ns+0x244/0x264 [ 237.799754][ T6329] kobject_add_internal+0x5ac/0xc3c [ 237.800639][ T6329] kobject_init_and_add+0x124/0x190 [ 237.801551][ T6329] gfs2_sys_fs_add+0x200/0x41c [ 237.802362][ T6329] gfs2_fill_super+0xddc/0x1a18 [ 237.803146][ T6329] get_tree_bdev+0x358/0x544 [ 237.803861][ T6329] gfs2_get_tree+0x54/0x1b4 [ 237.804572][ T6329] vfs_get_tree+0x90/0x274 [ 237.805256][ T6329] do_new_mount+0x228/0x810 [ 237.806026][ T6329] path_mount+0x5bc/0x1008 [ 237.806698][ T6329] __arm64_sys_mount+0x514/0x5f0 [ 237.807525][ T6329] invoke_syscall+0x98/0x2b0 [ 237.808270][ T6329] el0_svc_common+0x138/0x258 [ 237.809057][ T6329] do_el0_svc+0x58/0x13c [ 237.809792][ T6329] el0_svc+0x78/0x1d0 [ 237.810478][ T6329] el0t_64_sync_handler+0xcc/0xe4 [ 237.811337][ T6329] el0t_64_sync+0x1a0/0x1a4 [ 237.814601][ T6329] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.816572][ T6329] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 238.055629][ T6331] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 238.057043][ T6331] CPU: 1 PID: 6331 Comm: syz.1.687 Not tainted syzkaller #0 [ 238.058228][ T6331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.059954][ T6331] Call trace: [ 238.060478][ T6331] dump_backtrace+0x0/0x458 [ 238.061246][ T6331] show_stack+0x2c/0x3c [ 238.061885][ T6331] __dump_stack+0x30/0x40 [ 238.062593][ T6331] dump_stack_lvl+0xf4/0x15c [ 238.063375][ T6331] dump_stack+0x1c/0x5c [ 238.064056][ T6331] sysfs_create_dir_ns+0x244/0x264 [ 238.064802][ T6331] kobject_add_internal+0x5ac/0xc3c [ 238.065591][ T6331] kobject_init_and_add+0x124/0x190 [ 238.066392][ T6331] gfs2_sys_fs_add+0x200/0x41c [ 238.067137][ T6331] gfs2_fill_super+0xddc/0x1a18 [ 238.067922][ T6331] get_tree_bdev+0x358/0x544 [ 238.068624][ T6331] gfs2_get_tree+0x54/0x1b4 [ 238.069243][ T6331] vfs_get_tree+0x90/0x274 [ 238.069896][ T6331] do_new_mount+0x228/0x810 [ 238.070558][ T6331] path_mount+0x5bc/0x1008 [ 238.071269][ T6331] __arm64_sys_mount+0x514/0x5f0 [ 238.072103][ T6331] invoke_syscall+0x98/0x2b0 [ 238.072890][ T6331] el0_svc_common+0x138/0x258 [ 238.073734][ T6331] do_el0_svc+0x58/0x13c [ 238.074364][ T6331] el0_svc+0x78/0x1d0 [ 238.074997][ T6331] el0t_64_sync_handler+0xcc/0xe4 [ 238.075815][ T6331] el0t_64_sync+0x1a0/0x1a4 [ 238.076658][ T6331] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.078680][ T6331] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 238.274674][ T6333] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 238.275986][ T6333] CPU: 0 PID: 6333 Comm: syz.1.688 Not tainted syzkaller #0 [ 238.277198][ T6333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.278851][ T6333] Call trace: [ 238.279385][ T6333] dump_backtrace+0x0/0x458 [ 238.280152][ T6333] show_stack+0x2c/0x3c [ 238.280864][ T6333] __dump_stack+0x30/0x40 [ 238.281591][ T6333] dump_stack_lvl+0xf4/0x15c [ 238.282329][ T6333] dump_stack+0x1c/0x5c [ 238.283023][ T6333] sysfs_create_dir_ns+0x244/0x264 [ 238.283902][ T6333] kobject_add_internal+0x5ac/0xc3c [ 238.284790][ T6333] kobject_init_and_add+0x124/0x190 [ 238.285659][ T6333] gfs2_sys_fs_add+0x200/0x41c [ 238.286414][ T6333] gfs2_fill_super+0xddc/0x1a18 [ 238.287218][ T6333] get_tree_bdev+0x358/0x544 [ 238.287949][ T6333] gfs2_get_tree+0x54/0x1b4 [ 238.288676][ T6333] vfs_get_tree+0x90/0x274 [ 238.289398][ T6333] do_new_mount+0x228/0x810 [ 238.290141][ T6333] path_mount+0x5bc/0x1008 [ 238.290840][ T6333] __arm64_sys_mount+0x514/0x5f0 [ 238.291680][ T6333] invoke_syscall+0x98/0x2b0 [ 238.292455][ T6333] el0_svc_common+0x138/0x258 [ 238.293260][ T6333] do_el0_svc+0x58/0x13c [ 238.294018][ T6333] el0_svc+0x78/0x1d0 [ 238.294704][ T6333] el0t_64_sync_handler+0xcc/0xe4 [ 238.295556][ T6333] el0t_64_sync+0x1a0/0x1a4 [ 238.296625][ T6333] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.298847][ T6333] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 238.439508][ T6335] set_capacity_and_notify: 14 callbacks suppressed [ 238.439518][ T6335] loop1: detected capacity change from 0 to 32768 [ 238.491408][ T6335] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 238.492567][ T6335] CPU: 1 PID: 6335 Comm: syz.1.689 Not tainted syzkaller #0 [ 238.493738][ T6335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.495237][ T6335] Call trace: [ 238.495777][ T6335] dump_backtrace+0x0/0x458 [ 238.496567][ T6335] show_stack+0x2c/0x3c [ 238.497161][ T6335] __dump_stack+0x30/0x40 [ 238.497954][ T6335] dump_stack_lvl+0xf4/0x15c [ 238.498723][ T6335] dump_stack+0x1c/0x5c [ 238.499457][ T6335] sysfs_create_dir_ns+0x244/0x264 [ 238.500361][ T6335] kobject_add_internal+0x5ac/0xc3c [ 238.501200][ T6335] kobject_init_and_add+0x124/0x190 [ 238.502080][ T6335] gfs2_sys_fs_add+0x200/0x41c [ 238.502843][ T6335] gfs2_fill_super+0xddc/0x1a18 [ 238.503634][ T6335] get_tree_bdev+0x358/0x544 [ 238.504408][ T6335] gfs2_get_tree+0x54/0x1b4 [ 238.505202][ T6335] vfs_get_tree+0x90/0x274 [ 238.505923][ T6335] do_new_mount+0x228/0x810 [ 238.506647][ T6335] path_mount+0x5bc/0x1008 [ 238.507337][ T6335] __arm64_sys_mount+0x514/0x5f0 [ 238.508103][ T6335] invoke_syscall+0x98/0x2b0 [ 238.508847][ T6335] el0_svc_common+0x138/0x258 [ 238.509673][ T6335] do_el0_svc+0x58/0x13c [ 238.510415][ T6335] el0_svc+0x78/0x1d0 [ 238.511061][ T6335] el0t_64_sync_handler+0xcc/0xe4 [ 238.511956][ T6335] el0t_64_sync+0x1a0/0x1a4 [ 238.514429][ T6335] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.516443][ T6335] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 238.655219][ T6337] loop1: detected capacity change from 0 to 32768 [ 238.740791][ T6337] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 238.742031][ T6337] CPU: 0 PID: 6337 Comm: syz.1.690 Not tainted syzkaller #0 [ 238.743129][ T6337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.744889][ T6337] Call trace: [ 238.745425][ T6337] dump_backtrace+0x0/0x458 [ 238.746122][ T6337] show_stack+0x2c/0x3c [ 238.746814][ T6337] __dump_stack+0x30/0x40 [ 238.747590][ T6337] dump_stack_lvl+0xf4/0x15c [ 238.748341][ T6337] dump_stack+0x1c/0x5c [ 238.749069][ T6337] sysfs_create_dir_ns+0x244/0x264 [ 238.749890][ T6337] kobject_add_internal+0x5ac/0xc3c [ 238.750801][ T6337] kobject_init_and_add+0x124/0x190 [ 238.751676][ T6337] gfs2_sys_fs_add+0x200/0x41c [ 238.752450][ T6337] gfs2_fill_super+0xddc/0x1a18 [ 238.753197][ T6337] get_tree_bdev+0x358/0x544 [ 238.753955][ T6337] gfs2_get_tree+0x54/0x1b4 [ 238.754676][ T6337] vfs_get_tree+0x90/0x274 [ 238.755406][ T6337] do_new_mount+0x228/0x810 [ 238.756139][ T6337] path_mount+0x5bc/0x1008 [ 238.756832][ T6337] __arm64_sys_mount+0x514/0x5f0 [ 238.757594][ T6337] invoke_syscall+0x98/0x2b0 [ 238.758300][ T6337] el0_svc_common+0x138/0x258 [ 238.759078][ T6337] do_el0_svc+0x58/0x13c [ 238.759805][ T6337] el0_svc+0x78/0x1d0 [ 238.760456][ T6337] el0t_64_sync_handler+0xcc/0xe4 [ 238.761277][ T6337] el0t_64_sync+0x1a0/0x1a4 [ 238.763489][ T6337] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.765537][ T6337] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 238.907528][ T6339] loop1: detected capacity change from 0 to 32768 [ 238.914404][ T6339] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 238.915675][ T6339] CPU: 0 PID: 6339 Comm: syz.1.691 Not tainted syzkaller #0 [ 238.916833][ T6339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.918475][ T6339] Call trace: [ 238.919001][ T6339] dump_backtrace+0x0/0x458 [ 238.919730][ T6339] show_stack+0x2c/0x3c [ 238.920394][ T6339] __dump_stack+0x30/0x40 [ 238.921154][ T6339] dump_stack_lvl+0xf4/0x15c [ 238.921900][ T6339] dump_stack+0x1c/0x5c [ 238.922545][ T6339] sysfs_create_dir_ns+0x244/0x264 [ 238.923414][ T6339] kobject_add_internal+0x5ac/0xc3c [ 238.924186][ T6339] kobject_init_and_add+0x124/0x190 [ 238.925067][ T6339] gfs2_sys_fs_add+0x200/0x41c [ 238.925839][ T6339] gfs2_fill_super+0xddc/0x1a18 [ 238.926638][ T6339] get_tree_bdev+0x358/0x544 [ 238.927345][ T6339] gfs2_get_tree+0x54/0x1b4 [ 238.928008][ T6339] vfs_get_tree+0x90/0x274 [ 238.928696][ T6339] do_new_mount+0x228/0x810 [ 238.929395][ T6339] path_mount+0x5bc/0x1008 [ 238.930061][ T6339] __arm64_sys_mount+0x514/0x5f0 [ 238.930845][ T6339] invoke_syscall+0x98/0x2b0 [ 238.931551][ T6339] el0_svc_common+0x138/0x258 [ 238.932276][ T6339] do_el0_svc+0x58/0x13c [ 238.932989][ T6339] el0_svc+0x78/0x1d0 [ 238.933667][ T6339] el0t_64_sync_handler+0xcc/0xe4 [ 238.934514][ T6339] el0t_64_sync+0x1a0/0x1a4 [ 238.936833][ T6339] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.938908][ T6339] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 239.078882][ T6341] loop1: detected capacity change from 0 to 32768 [ 239.087961][ T6341] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 239.089215][ T6341] CPU: 0 PID: 6341 Comm: syz.1.692 Not tainted syzkaller #0 [ 239.090485][ T6341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 239.092138][ T6341] Call trace: [ 239.092669][ T6341] dump_backtrace+0x0/0x458 [ 239.093382][ T6341] show_stack+0x2c/0x3c [ 239.094053][ T6341] __dump_stack+0x30/0x40 [ 239.094738][ T6341] dump_stack_lvl+0xf4/0x15c [ 239.095463][ T6341] dump_stack+0x1c/0x5c [ 239.096096][ T6341] sysfs_create_dir_ns+0x244/0x264 [ 239.096886][ T6341] kobject_add_internal+0x5ac/0xc3c [ 239.097695][ T6341] kobject_init_and_add+0x124/0x190 [ 239.098470][ T6341] gfs2_sys_fs_add+0x200/0x41c [ 239.099183][ T6341] gfs2_fill_super+0xddc/0x1a18 [ 239.099991][ T6341] get_tree_bdev+0x358/0x544 [ 239.100742][ T6341] gfs2_get_tree+0x54/0x1b4 [ 239.101480][ T6341] vfs_get_tree+0x90/0x274 [ 239.102201][ T6341] do_new_mount+0x228/0x810 [ 239.102917][ T6341] path_mount+0x5bc/0x1008 [ 239.103617][ T6341] __arm64_sys_mount+0x514/0x5f0 [ 239.104431][ T6341] invoke_syscall+0x98/0x2b0 [ 239.105173][ T6341] el0_svc_common+0x138/0x258 [ 239.105961][ T6341] do_el0_svc+0x58/0x13c [ 239.106687][ T6341] el0_svc+0x78/0x1d0 [ 239.107384][ T6341] el0t_64_sync_handler+0xcc/0xe4 [ 239.108164][ T6341] el0t_64_sync+0x1a0/0x1a4 [ 239.110668][ T6341] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 239.112670][ T6341] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 239.219698][ T27] INFO: task kworker/0:26:4182 blocked for more than 143 seconds. [ 239.221013][ T27] Not tainted syzkaller #0 [ 239.221748][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 239.223138][ T27] task:kworker/0:26 state:D stack: 0 pid: 4182 ppid: 2 flags:0x00000008 [ 239.224596][ T27] Workqueue: gfs_recovery gfs2_recover_func [ 239.225525][ T27] Call trace: [ 239.226013][ T27] __switch_to+0x2f4/0x540 [ 239.226724][ T27] __schedule+0xdfc/0x1bc4 [ 239.227421][ T27] schedule+0x11c/0x1c8 [ 239.228075][ T27] io_schedule+0x84/0x160 [ 239.228768][ T27] wait_on_page_bit_common+0x634/0xa8c [ 239.229783][ T27] wait_on_page_bit+0x58/0x68 [ 239.230505][ T27] gfs2_jhead_process_page+0x1e0/0x6a8 [ 239.231349][ T27] gfs2_find_jhead+0xb6c/0xca8 [ 239.232144][ T27] gfs2_recover_func+0x584/0x162c [ 239.233003][ T27] process_one_work+0x79c/0x1138 [ 239.233745][ T27] worker_thread+0x8f4/0x1034 [ 239.234529][ T27] kthread+0x374/0x454 [ 239.235130][ T27] ret_from_fork+0x10/0x20 [ 239.235853][ T27] INFO: task syz.0.17:4949 blocked for more than 143 seconds. [ 239.236995][ T27] Not tainted syzkaller #0 [ 239.237773][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 239.239112][ T27] task:syz.0.17 state:D stack: 0 pid: 4949 ppid: 4770 flags:0x00000009 [ 239.241300][ T27] Call trace: [ 239.241823][ T27] __switch_to+0x2f4/0x540 [ 239.242554][ T27] __schedule+0xdfc/0x1bc4 [ 239.243282][ T27] schedule+0x11c/0x1c8 [ 239.244013][ T27] bit_wait+0x1c/0xac [ 239.244738][ T27] out_of_line_wait_on_bit+0x16c/0x218 [ 239.245688][ T27] gfs2_recover_journal+0xf0/0x164 [ 239.246543][ T27] init_journal+0x13d0/0x1e34 [ 239.247330][ T27] init_inodes+0xe0/0x2d4 [ 239.248007][ T27] gfs2_fill_super+0x1264/0x1a18 [ 239.248810][ T27] get_tree_bdev+0x358/0x544 [ 239.250149][ T27] gfs2_get_tree+0x54/0x1b4 [ 239.250820][ T27] vfs_get_tree+0x90/0x274 [ 239.251553][ T27] do_new_mount+0x228/0x810 [ 239.252227][ T27] path_mount+0x5bc/0x1008 [ 239.252985][ T27] __arm64_sys_mount+0x514/0x5f0 [ 239.253813][ T27] invoke_syscall+0x98/0x2b0 [ 239.254511][ T27] el0_svc_common+0x138/0x258 [ 239.254921][ T6343] loop1: detected capacity change from 0 to 32768 [ 239.255244][ T27] do_el0_svc+0x58/0x13c [ 239.256981][ T27] el0_svc+0x78/0x1d0 [ 239.257587][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 239.258477][ T27] el0t_64_sync+0x1a0/0x1a4 [ 239.259349][ T27] [ 239.259349][ T27] Showing all locks held in the system: [ 239.262273][ T27] 1 lock held by khungtaskd/27: [ 239.263319][ T27] #0: ffff800014471360 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 239.264952][ T6343] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 239.266173][ T6343] CPU: 1 PID: 6343 Comm: syz.1.693 Not tainted syzkaller #0 [ 239.267351][ T6343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 239.268894][ T6343] Call trace: [ 239.269416][ T6343] dump_backtrace+0x0/0x458 [ 239.270125][ T6343] show_stack+0x2c/0x3c [ 239.270788][ T6343] __dump_stack+0x30/0x40 [ 239.271500][ T6343] dump_stack_lvl+0xf4/0x15c [ 239.272255][ T6343] dump_stack+0x1c/0x5c [ 239.272940][ T6343] sysfs_create_dir_ns+0x244/0x264 [ 239.273774][ T6343] kobject_add_internal+0x5ac/0xc3c [ 239.274620][ T6343] kobject_init_and_add+0x124/0x190 [ 239.275498][ T6343] gfs2_sys_fs_add+0x200/0x41c [ 239.276290][ T6343] gfs2_fill_super+0xddc/0x1a18 [ 239.277107][ T6343] get_tree_bdev+0x358/0x544 [ 239.277905][ T6343] gfs2_get_tree+0x54/0x1b4 [ 239.278669][ T6343] vfs_get_tree+0x90/0x274 [ 239.279451][ T6343] do_new_mount+0x228/0x810 [ 239.280224][ T6343] path_mount+0x5bc/0x1008 [ 239.280998][ T6343] __arm64_sys_mount+0x514/0x5f0 [ 239.281101][ T27] 2 locks held by getty/3804: [ 239.281850][ T6343] invoke_syscall+0x98/0x2b0 [ 239.282534][ T27] #0: ffff0000d4443098 [ 239.283325][ T6343] el0_svc_common+0x138/0x258 [ 239.284026][ T27] (&tty->ldisc_sem [ 239.284805][ T6343] do_el0_svc+0x58/0x13c [ 239.284822][ T6343] el0_svc+0x78/0x1d0 [ 239.285439][ T27] ){++++}-{0:0} [ 239.286101][ T6343] el0t_64_sync_handler+0xcc/0xe4 [ 239.286779][ T27] , at: ldsem_down_read+0x40/0x50 [ 239.287335][ T6343] el0t_64_sync+0x1a0/0x1a4 [ 239.288137][ T27] #1: ffff80001b9032e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 239.291314][ T6343] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 239.291868][ T27] 2 locks held by kworker/0:26/4182: [ 239.293718][ T6343] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 239.294543][ T27] #0: ffff0000c7314538 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x678/0x1138 [ 239.297228][ T27] #1: ffff80001f907c00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1138 [ 239.299127][ T27] 1 lock held by syz.0.17/4949: [ 239.301187][ T27] #0: ffff0000d61860e0 (&type->s_umount_key#51/1){+.+.}-{3:3}, at: alloc_super+0x1a8/0x81c [ 239.302792][ T27] 2 locks held by syz.1.693/6343: [ 239.303583][ T27] #0: ffff0000c78ef118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xdc/0x6ac [ 239.305098][ T27] #1: ffff0000cc1c4468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x50/0x1fc [ 239.306568][ T27] [ 239.306930][ T27] ============================================= [ 239.306930][ T27] [ 239.308200][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 239.309297][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 239.310508][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 239.312200][ T27] Call trace: [ 239.312722][ T27] dump_backtrace+0x0/0x458 [ 239.313547][ T27] show_stack+0x2c/0x3c [ 239.314245][ T27] __dump_stack+0x30/0x40 [ 239.314953][ T27] dump_stack_lvl+0xf4/0x15c [ 239.315735][ T27] dump_stack+0x1c/0x5c [ 239.316392][ T27] panic+0x2fc/0x860 [ 239.317004][ T27] hung_task_panic+0x0/0x2c [ 239.317721][ T27] kthread+0x374/0x454 [ 239.318387][ T27] ret_from_fork+0x10/0x20 [ 239.319091][ T27] SMP: stopping secondary CPUs [ 239.319896][ T27] Kernel Offset: disabled [ 239.320632][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 239.321491][ T27] Memory Limit: none [ 239.647625][ T27] Rebooting in 86400 seconds..