mount+0x514/0x5f0 [ 201.795595][ T6017] invoke_syscall+0x98/0x2b0 [ 201.796377][ T6017] el0_svc_common+0x138/0x258 [ 201.797180][ T6017] do_el0_svc+0x58/0x13c [ 201.797889][ T6017] el0_svc+0x78/0x1d0 [ 201.798532][ T6017] el0t_64_sync_handler+0xcc/0xe4 [ 201.799365][ T6017] el0t_64_sync+0x1a0/0x1a4 [ 201.800523][ T6017] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.802594][ T6017] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.946996][ T6019] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.948202][ T6019] CPU: 1 PID: 6019 Comm: syz.1.553 Not tainted syzkaller #0 [ 201.949356][ T6019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 201.950912][ T6019] Call trace: [ 201.951428][ T6019] dump_backtrace+0x0/0x458 [ 201.952179][ T6019] show_stack+0x2c/0x3c [ 201.952812][ T6019] __dump_stack+0x30/0x40 [ 201.953482][ T6019] dump_stack_lvl+0xf4/0x15c [ 201.954272][ T6019] dump_stack+0x1c/0x5c [ 201.954897][ T6019] sysfs_create_dir_ns+0x244/0x264 [ 201.955698][ T6019] kobject_add_internal+0x5ac/0xc3c [ 201.956487][ T6019] kobject_init_and_add+0x124/0x190 [ 201.957293][ T6019] gfs2_sys_fs_add+0x200/0x41c [ 201.958102][ T6019] gfs2_fill_super+0xddc/0x1a18 [ 201.958867][ T6019] get_tree_bdev+0x358/0x544 [ 201.959624][ T6019] gfs2_get_tree+0x54/0x1b4 [ 201.960368][ T6019] vfs_get_tree+0x90/0x274 [ 201.961086][ T6019] do_new_mount+0x228/0x810 [ 201.961800][ T6019] path_mount+0x5bc/0x1008 [ 201.962469][ T6019] __arm64_sys_mount+0x514/0x5f0 [ 201.963255][ T6019] invoke_syscall+0x98/0x2b0 [ 201.963995][ T6019] el0_svc_common+0x138/0x258 [ 201.964722][ T6019] do_el0_svc+0x58/0x13c [ 201.965350][ T6019] el0_svc+0x78/0x1d0 [ 201.965950][ T6019] el0t_64_sync_handler+0xcc/0xe4 [ 201.966732][ T6019] el0t_64_sync+0x1a0/0x1a4 [ 201.969197][ T6019] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.971185][ T6019] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.135451][ T6021] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.136669][ T6021] CPU: 0 PID: 6021 Comm: syz.1.554 Not tainted syzkaller #0 [ 202.137649][ T6021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 202.139103][ T6021] Call trace: [ 202.139557][ T6021] dump_backtrace+0x0/0x458 [ 202.140314][ T6021] show_stack+0x2c/0x3c [ 202.141004][ T6021] __dump_stack+0x30/0x40 [ 202.141693][ T6021] dump_stack_lvl+0xf4/0x15c [ 202.142394][ T6021] dump_stack+0x1c/0x5c [ 202.143105][ T6021] sysfs_create_dir_ns+0x244/0x264 [ 202.143970][ T6021] kobject_add_internal+0x5ac/0xc3c [ 202.144856][ T6021] kobject_init_and_add+0x124/0x190 [ 202.145730][ T6021] gfs2_sys_fs_add+0x200/0x41c [ 202.146481][ T6021] gfs2_fill_super+0xddc/0x1a18 [ 202.147285][ T6021] get_tree_bdev+0x358/0x544 [ 202.148040][ T6021] gfs2_get_tree+0x54/0x1b4 [ 202.148755][ T6021] vfs_get_tree+0x90/0x274 [ 202.149460][ T6021] do_new_mount+0x228/0x810 [ 202.150203][ T6021] path_mount+0x5bc/0x1008 [ 202.150988][ T6021] __arm64_sys_mount+0x514/0x5f0 [ 202.151796][ T6021] invoke_syscall+0x98/0x2b0 [ 202.152518][ T6021] el0_svc_common+0x138/0x258 [ 202.153249][ T6021] do_el0_svc+0x58/0x13c [ 202.153935][ T6021] el0_svc+0x78/0x1d0 [ 202.154556][ T6021] el0t_64_sync_handler+0xcc/0xe4 [ 202.155420][ T6021] el0t_64_sync+0x1a0/0x1a4 [ 202.156367][ T6021] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.158422][ T6021] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.385381][ T6024] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.386544][ T6024] CPU: 0 PID: 6024 Comm: syz.1.555 Not tainted syzkaller #0 [ 202.387648][ T6024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 202.389173][ T6024] Call trace: [ 202.389677][ T6024] dump_backtrace+0x0/0x458 [ 202.390438][ T6024] show_stack+0x2c/0x3c [ 202.391132][ T6024] __dump_stack+0x30/0x40 [ 202.391839][ T6024] dump_stack_lvl+0xf4/0x15c [ 202.392572][ T6024] dump_stack+0x1c/0x5c [ 202.393222][ T6024] sysfs_create_dir_ns+0x244/0x264 [ 202.393997][ T6024] kobject_add_internal+0x5ac/0xc3c [ 202.394860][ T6024] kobject_init_and_add+0x124/0x190 [ 202.395731][ T6024] gfs2_sys_fs_add+0x200/0x41c [ 202.396492][ T6024] gfs2_fill_super+0xddc/0x1a18 [ 202.397253][ T6024] get_tree_bdev+0x358/0x544 [ 202.397978][ T6024] gfs2_get_tree+0x54/0x1b4 [ 202.398686][ T6024] vfs_get_tree+0x90/0x274 [ 202.399415][ T6024] do_new_mount+0x228/0x810 [ 202.400185][ T6024] path_mount+0x5bc/0x1008 [ 202.400942][ T6024] __arm64_sys_mount+0x514/0x5f0 [ 202.401732][ T6024] invoke_syscall+0x98/0x2b0 [ 202.402421][ T6024] el0_svc_common+0x138/0x258 [ 202.403219][ T6024] do_el0_svc+0x58/0x13c [ 202.403926][ T6024] el0_svc+0x78/0x1d0 [ 202.404584][ T6024] el0t_64_sync_handler+0xcc/0xe4 [ 202.405420][ T6024] el0t_64_sync+0x1a0/0x1a4 [ 202.406900][ T6024] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.408677][ T6024] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.576292][ T6026] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.577539][ T6026] CPU: 0 PID: 6026 Comm: syz.1.556 Not tainted syzkaller #0 [ 202.578667][ T6026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 202.580267][ T6026] Call trace: [ 202.580734][ T6026] dump_backtrace+0x0/0x458 [ 202.581439][ T6026] show_stack+0x2c/0x3c [ 202.582100][ T6026] __dump_stack+0x30/0x40 [ 202.582787][ T6026] dump_stack_lvl+0xf4/0x15c [ 202.583516][ T6026] dump_stack+0x1c/0x5c [ 202.584159][ T6026] sysfs_create_dir_ns+0x244/0x264 [ 202.585002][ T6026] kobject_add_internal+0x5ac/0xc3c [ 202.585840][ T6026] kobject_init_and_add+0x124/0x190 [ 202.586625][ T6026] gfs2_sys_fs_add+0x200/0x41c [ 202.587401][ T6026] gfs2_fill_super+0xddc/0x1a18 [ 202.588154][ T6026] get_tree_bdev+0x358/0x544 [ 202.588899][ T6026] gfs2_get_tree+0x54/0x1b4 [ 202.589608][ T6026] vfs_get_tree+0x90/0x274 [ 202.590314][ T6026] do_new_mount+0x228/0x810 [ 202.590964][ T6026] path_mount+0x5bc/0x1008 [ 202.591648][ T6026] __arm64_sys_mount+0x514/0x5f0 [ 202.592410][ T6026] invoke_syscall+0x98/0x2b0 [ 202.593111][ T6026] el0_svc_common+0x138/0x258 [ 202.593866][ T6026] do_el0_svc+0x58/0x13c [ 202.594521][ T6026] el0_svc+0x78/0x1d0 [ 202.595134][ T6026] el0t_64_sync_handler+0xcc/0xe4 [ 202.595895][ T6026] el0t_64_sync+0x1a0/0x1a4 [ 202.597255][ T6026] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.599242][ T6026] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.800869][ T6028] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.801969][ T6028] CPU: 1 PID: 6028 Comm: syz.1.557 Not tainted syzkaller #0 [ 202.803037][ T6028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 202.804495][ T6028] Call trace: [ 202.804972][ T6028] dump_backtrace+0x0/0x458 [ 202.805626][ T6028] show_stack+0x2c/0x3c [ 202.806232][ T6028] __dump_stack+0x30/0x40 [ 202.806866][ T6028] dump_stack_lvl+0xf4/0x15c [ 202.807516][ T6028] dump_stack+0x1c/0x5c [ 202.808166][ T6028] sysfs_create_dir_ns+0x244/0x264 [ 202.809056][ T6028] kobject_add_internal+0x5ac/0xc3c [ 202.809927][ T6028] kobject_init_and_add+0x124/0x190 [ 202.810774][ T6028] gfs2_sys_fs_add+0x200/0x41c [ 202.811521][ T6028] gfs2_fill_super+0xddc/0x1a18 [ 202.812318][ T6028] get_tree_bdev+0x358/0x544 [ 202.813056][ T6028] gfs2_get_tree+0x54/0x1b4 [ 202.813802][ T6028] vfs_get_tree+0x90/0x274 [ 202.814513][ T6028] do_new_mount+0x228/0x810 [ 202.815286][ T6028] path_mount+0x5bc/0x1008 [ 202.816092][ T6028] __arm64_sys_mount+0x514/0x5f0 [ 202.816923][ T6028] invoke_syscall+0x98/0x2b0 [ 202.817681][ T6028] el0_svc_common+0x138/0x258 [ 202.818388][ T6028] do_el0_svc+0x58/0x13c [ 202.819094][ T6028] el0_svc+0x78/0x1d0 [ 202.819748][ T6028] el0t_64_sync_handler+0xcc/0xe4 [ 202.820586][ T6028] el0t_64_sync+0x1a0/0x1a4 [ 202.822941][ T6028] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.825011][ T6028] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.015412][ T6030] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.016636][ T6030] CPU: 0 PID: 6030 Comm: syz.1.558 Not tainted syzkaller #0 [ 203.017775][ T6030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 203.019380][ T6030] Call trace: [ 203.019904][ T6030] dump_backtrace+0x0/0x458 [ 203.020613][ T6030] show_stack+0x2c/0x3c [ 203.021237][ T6030] __dump_stack+0x30/0x40 [ 203.021936][ T6030] dump_stack_lvl+0xf4/0x15c [ 203.022640][ T6030] dump_stack+0x1c/0x5c [ 203.023259][ T6030] sysfs_create_dir_ns+0x244/0x264 [ 203.024100][ T6030] kobject_add_internal+0x5ac/0xc3c [ 203.024979][ T6030] kobject_init_and_add+0x124/0x190 [ 203.025810][ T6030] gfs2_sys_fs_add+0x200/0x41c [ 203.026606][ T6030] gfs2_fill_super+0xddc/0x1a18 [ 203.027374][ T6030] get_tree_bdev+0x358/0x544 [ 203.028174][ T6030] gfs2_get_tree+0x54/0x1b4 [ 203.028949][ T6030] vfs_get_tree+0x90/0x274 [ 203.029656][ T6030] do_new_mount+0x228/0x810 [ 203.030372][ T6030] path_mount+0x5bc/0x1008 [ 203.031091][ T6030] __arm64_sys_mount+0x514/0x5f0 [ 203.031875][ T6030] invoke_syscall+0x98/0x2b0 [ 203.032588][ T6030] el0_svc_common+0x138/0x258 [ 203.033365][ T6030] do_el0_svc+0x58/0x13c [ 203.034058][ T6030] el0_svc+0x78/0x1d0 [ 203.034679][ T6030] el0t_64_sync_handler+0xcc/0xe4 [ 203.035412][ T6030] el0t_64_sync+0x1a0/0x1a4 [ 203.036305][ T6030] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.038311][ T6030] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.212100][ T6032] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.213266][ T6032] CPU: 0 PID: 6032 Comm: syz.1.559 Not tainted syzkaller #0 [ 203.214363][ T6032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 203.216025][ T6032] Call trace: [ 203.216606][ T6032] dump_backtrace+0x0/0x458 [ 203.217325][ T6032] show_stack+0x2c/0x3c [ 203.218025][ T6032] __dump_stack+0x30/0x40 [ 203.218756][ T6032] dump_stack_lvl+0xf4/0x15c [ 203.219485][ T6032] dump_stack+0x1c/0x5c [ 203.220122][ T6032] sysfs_create_dir_ns+0x244/0x264 [ 203.220954][ T6032] kobject_add_internal+0x5ac/0xc3c [ 203.221782][ T6032] kobject_init_and_add+0x124/0x190 [ 203.222577][ T6032] gfs2_sys_fs_add+0x200/0x41c [ 203.223305][ T6032] gfs2_fill_super+0xddc/0x1a18 [ 203.224072][ T6032] get_tree_bdev+0x358/0x544 [ 203.224774][ T6032] gfs2_get_tree+0x54/0x1b4 [ 203.225521][ T6032] vfs_get_tree+0x90/0x274 [ 203.226245][ T6032] do_new_mount+0x228/0x810 [ 203.227021][ T6032] path_mount+0x5bc/0x1008 [ 203.227731][ T6032] __arm64_sys_mount+0x514/0x5f0 [ 203.228537][ T6032] invoke_syscall+0x98/0x2b0 [ 203.229272][ T6032] el0_svc_common+0x138/0x258 [ 203.230047][ T6032] do_el0_svc+0x58/0x13c [ 203.230727][ T6032] el0_svc+0x78/0x1d0 [ 203.231389][ T6032] el0t_64_sync_handler+0xcc/0xe4 [ 203.232186][ T6032] el0t_64_sync+0x1a0/0x1a4 [ 203.233533][ T6032] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.235688][ T6032] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.377977][ T6035] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.379215][ T6035] CPU: 1 PID: 6035 Comm: syz.1.560 Not tainted syzkaller #0 [ 203.380443][ T6035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 203.382046][ T6035] Call trace: [ 203.382546][ T6035] dump_backtrace+0x0/0x458 [ 203.383216][ T6035] show_stack+0x2c/0x3c [ 203.383865][ T6035] __dump_stack+0x30/0x40 [ 203.384552][ T6035] dump_stack_lvl+0xf4/0x15c [ 203.385284][ T6035] dump_stack+0x1c/0x5c [ 203.385908][ T6035] sysfs_create_dir_ns+0x244/0x264 [ 203.386655][ T6035] kobject_add_internal+0x5ac/0xc3c [ 203.387455][ T6035] kobject_init_and_add+0x124/0x190 [ 203.388280][ T6035] gfs2_sys_fs_add+0x200/0x41c [ 203.389034][ T6035] gfs2_fill_super+0xddc/0x1a18 [ 203.389817][ T6035] get_tree_bdev+0x358/0x544 [ 203.390561][ T6035] gfs2_get_tree+0x54/0x1b4 [ 203.391198][ T6035] vfs_get_tree+0x90/0x274 [ 203.391820][ T6035] do_new_mount+0x228/0x810 [ 203.392518][ T6035] path_mount+0x5bc/0x1008 [ 203.393288][ T6035] __arm64_sys_mount+0x514/0x5f0 [ 203.394233][ T6035] invoke_syscall+0x98/0x2b0 [ 203.394990][ T6035] el0_svc_common+0x138/0x258 [ 203.395745][ T6035] do_el0_svc+0x58/0x13c [ 203.396390][ T6035] el0_svc+0x78/0x1d0 [ 203.397023][ T6035] el0t_64_sync_handler+0xcc/0xe4 [ 203.397809][ T6035] el0t_64_sync+0x1a0/0x1a4 [ 203.400292][ T6035] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.402250][ T6035] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.575470][ T6037] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.576778][ T6037] CPU: 0 PID: 6037 Comm: syz.1.561 Not tainted syzkaller #0 [ 203.577967][ T6037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 203.579601][ T6037] Call trace: [ 203.580120][ T6037] dump_backtrace+0x0/0x458 [ 203.580779][ T6037] show_stack+0x2c/0x3c [ 203.581381][ T6037] __dump_stack+0x30/0x40 [ 203.582057][ T6037] dump_stack_lvl+0xf4/0x15c [ 203.582746][ T6037] dump_stack+0x1c/0x5c [ 203.583371][ T6037] sysfs_create_dir_ns+0x244/0x264 [ 203.584193][ T6037] kobject_add_internal+0x5ac/0xc3c [ 203.584932][ T6037] kobject_init_and_add+0x124/0x190 [ 203.585827][ T6037] gfs2_sys_fs_add+0x200/0x41c [ 203.586658][ T6037] gfs2_fill_super+0xddc/0x1a18 [ 203.587428][ T6037] get_tree_bdev+0x358/0x544 [ 203.588158][ T6037] gfs2_get_tree+0x54/0x1b4 [ 203.588884][ T6037] vfs_get_tree+0x90/0x274 [ 203.589599][ T6037] do_new_mount+0x228/0x810 [ 203.590307][ T6037] path_mount+0x5bc/0x1008 [ 203.591004][ T6037] __arm64_sys_mount+0x514/0x5f0 [ 203.591795][ T6037] invoke_syscall+0x98/0x2b0 [ 203.592548][ T6037] el0_svc_common+0x138/0x258 [ 203.593286][ T6037] do_el0_svc+0x58/0x13c [ 203.593984][ T6037] el0_svc+0x78/0x1d0 [ 203.594592][ T6037] el0t_64_sync_handler+0xcc/0xe4 [ 203.595357][ T6037] el0t_64_sync+0x1a0/0x1a4 [ 203.596312][ T6037] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.598460][ T6037] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.815354][ T6039] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.816625][ T6039] CPU: 0 PID: 6039 Comm: syz.1.562 Not tainted syzkaller #0 [ 203.817682][ T6039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 203.819435][ T6039] Call trace: [ 203.819975][ T6039] dump_backtrace+0x0/0x458 [ 203.820724][ T6039] show_stack+0x2c/0x3c [ 203.821400][ T6039] __dump_stack+0x30/0x40 [ 203.822094][ T6039] dump_stack_lvl+0xf4/0x15c [ 203.822781][ T6039] dump_stack+0x1c/0x5c [ 203.823459][ T6039] sysfs_create_dir_ns+0x244/0x264 [ 203.824265][ T6039] kobject_add_internal+0x5ac/0xc3c [ 203.825136][ T6039] kobject_init_and_add+0x124/0x190 [ 203.825994][ T6039] gfs2_sys_fs_add+0x200/0x41c [ 203.826798][ T6039] gfs2_fill_super+0xddc/0x1a18 [ 203.827560][ T6039] get_tree_bdev+0x358/0x544 [ 203.828300][ T6039] gfs2_get_tree+0x54/0x1b4 [ 203.829046][ T6039] vfs_get_tree+0x90/0x274 [ 203.829780][ T6039] do_new_mount+0x228/0x810 [ 203.830504][ T6039] path_mount+0x5bc/0x1008 [ 203.831225][ T6039] __arm64_sys_mount+0x514/0x5f0 [ 203.832077][ T6039] invoke_syscall+0x98/0x2b0 [ 203.832802][ T6039] el0_svc_common+0x138/0x258 [ 203.833565][ T6039] do_el0_svc+0x58/0x13c [ 203.834266][ T6039] el0_svc+0x78/0x1d0 [ 203.834924][ T6039] el0t_64_sync_handler+0xcc/0xe4 [ 203.835712][ T6039] el0t_64_sync+0x1a0/0x1a4 [ 203.836969][ T6039] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.839002][ T6039] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:23 executed programs: 549 [ 204.016847][ T6041] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.018116][ T6041] CPU: 0 PID: 6041 Comm: syz.1.563 Not tainted syzkaller #0 [ 204.019256][ T6041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 204.020742][ T6041] Call trace: [ 204.021302][ T6041] dump_backtrace+0x0/0x458 [ 204.022023][ T6041] show_stack+0x2c/0x3c [ 204.022687][ T6041] __dump_stack+0x30/0x40 [ 204.023352][ T6041] dump_stack_lvl+0xf4/0x15c [ 204.024022][ T6041] dump_stack+0x1c/0x5c [ 204.024700][ T6041] sysfs_create_dir_ns+0x244/0x264 [ 204.025522][ T6041] kobject_add_internal+0x5ac/0xc3c [ 204.026372][ T6041] kobject_init_and_add+0x124/0x190 [ 204.027183][ T6041] gfs2_sys_fs_add+0x200/0x41c [ 204.028000][ T6041] gfs2_fill_super+0xddc/0x1a18 [ 204.028828][ T6041] get_tree_bdev+0x358/0x544 [ 204.029552][ T6041] gfs2_get_tree+0x54/0x1b4 [ 204.030291][ T6041] vfs_get_tree+0x90/0x274 [ 204.031011][ T6041] do_new_mount+0x228/0x810 [ 204.031734][ T6041] path_mount+0x5bc/0x1008 [ 204.032452][ T6041] __arm64_sys_mount+0x514/0x5f0 [ 204.033269][ T6041] invoke_syscall+0x98/0x2b0 [ 204.034042][ T6041] el0_svc_common+0x138/0x258 [ 204.034820][ T6041] do_el0_svc+0x58/0x13c [ 204.035483][ T6041] el0_svc+0x78/0x1d0 [ 204.036129][ T6041] el0t_64_sync_handler+0xcc/0xe4 [ 204.036912][ T6041] el0t_64_sync+0x1a0/0x1a4 [ 204.040822][ T6041] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.042879][ T6041] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.190034][ T6044] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.191185][ T6044] CPU: 0 PID: 6044 Comm: syz.1.564 Not tainted syzkaller #0 [ 204.192299][ T6044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 204.193840][ T6044] Call trace: [ 204.194572][ T6044] dump_backtrace+0x0/0x458 [ 204.195315][ T6044] show_stack+0x2c/0x3c [ 204.196056][ T6044] __dump_stack+0x30/0x40 [ 204.196770][ T6044] dump_stack_lvl+0xf4/0x15c [ 204.197505][ T6044] dump_stack+0x1c/0x5c [ 204.198194][ T6044] sysfs_create_dir_ns+0x244/0x264 [ 204.199017][ T6044] kobject_add_internal+0x5ac/0xc3c [ 204.199876][ T6044] kobject_init_and_add+0x124/0x190 [ 204.200705][ T6044] gfs2_sys_fs_add+0x200/0x41c [ 204.201478][ T6044] gfs2_fill_super+0xddc/0x1a18 [ 204.202229][ T6044] get_tree_bdev+0x358/0x544 [ 204.202947][ T6044] gfs2_get_tree+0x54/0x1b4 [ 204.203634][ T6044] vfs_get_tree+0x90/0x274 [ 204.204284][ T6044] do_new_mount+0x228/0x810 [ 204.205062][ T6044] path_mount+0x5bc/0x1008 [ 204.205751][ T6044] __arm64_sys_mount+0x514/0x5f0 [ 204.206492][ T6044] invoke_syscall+0x98/0x2b0 [ 204.207254][ T6044] el0_svc_common+0x138/0x258 [ 204.207918][ T6044] do_el0_svc+0x58/0x13c [ 204.208522][ T6044] el0_svc+0x78/0x1d0 [ 204.209084][ T6044] el0t_64_sync_handler+0xcc/0xe4 [ 204.209913][ T6044] el0t_64_sync+0x1a0/0x1a4 [ 204.212173][ T6044] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.214263][ T6044] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.385351][ T6046] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.386547][ T6046] CPU: 0 PID: 6046 Comm: syz.1.565 Not tainted syzkaller #0 [ 204.387625][ T6046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 204.389151][ T6046] Call trace: [ 204.389635][ T6046] dump_backtrace+0x0/0x458 [ 204.390347][ T6046] show_stack+0x2c/0x3c [ 204.391030][ T6046] __dump_stack+0x30/0x40 [ 204.391671][ T6046] dump_stack_lvl+0xf4/0x15c [ 204.392397][ T6046] dump_stack+0x1c/0x5c [ 204.393055][ T6046] sysfs_create_dir_ns+0x244/0x264 [ 204.393837][ T6046] kobject_add_internal+0x5ac/0xc3c [ 204.394670][ T6046] kobject_init_and_add+0x124/0x190 [ 204.395539][ T6046] gfs2_sys_fs_add+0x200/0x41c [ 204.396315][ T6046] gfs2_fill_super+0xddc/0x1a18 [ 204.397089][ T6046] get_tree_bdev+0x358/0x544 [ 204.397817][ T6046] gfs2_get_tree+0x54/0x1b4 [ 204.398611][ T6046] vfs_get_tree+0x90/0x274 [ 204.399320][ T6046] do_new_mount+0x228/0x810 [ 204.400105][ T6046] path_mount+0x5bc/0x1008 [ 204.400888][ T6046] __arm64_sys_mount+0x514/0x5f0 [ 204.401682][ T6046] invoke_syscall+0x98/0x2b0 [ 204.402417][ T6046] el0_svc_common+0x138/0x258 [ 204.403234][ T6046] do_el0_svc+0x58/0x13c [ 204.403915][ T6046] el0_svc+0x78/0x1d0 [ 204.404567][ T6046] el0t_64_sync_handler+0xcc/0xe4 [ 204.405393][ T6046] el0t_64_sync+0x1a0/0x1a4 [ 204.407513][ T6046] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.409541][ T6046] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.543225][ T6048] set_capacity_and_notify: 15 callbacks suppressed [ 204.543235][ T6048] loop1: detected capacity change from 0 to 32768 [ 204.589381][ T6048] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.590580][ T6048] CPU: 0 PID: 6048 Comm: syz.1.566 Not tainted syzkaller #0 [ 204.591628][ T6048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 204.593132][ T6048] Call trace: [ 204.593641][ T6048] dump_backtrace+0x0/0x458 [ 204.594325][ T6048] show_stack+0x2c/0x3c [ 204.594982][ T6048] __dump_stack+0x30/0x40 [ 204.595602][ T6048] dump_stack_lvl+0xf4/0x15c [ 204.596325][ T6048] dump_stack+0x1c/0x5c [ 204.596937][ T6048] sysfs_create_dir_ns+0x244/0x264 [ 204.597756][ T6048] kobject_add_internal+0x5ac/0xc3c [ 204.598519][ T6048] kobject_init_and_add+0x124/0x190 [ 204.599294][ T6048] gfs2_sys_fs_add+0x200/0x41c [ 204.600053][ T6048] gfs2_fill_super+0xddc/0x1a18 [ 204.600816][ T6048] get_tree_bdev+0x358/0x544 [ 204.601616][ T6048] gfs2_get_tree+0x54/0x1b4 [ 204.602384][ T6048] vfs_get_tree+0x90/0x274 [ 204.603112][ T6048] do_new_mount+0x228/0x810 [ 204.603900][ T6048] path_mount+0x5bc/0x1008 [ 204.604681][ T6048] __arm64_sys_mount+0x514/0x5f0 [ 204.605476][ T6048] invoke_syscall+0x98/0x2b0 [ 204.606242][ T6048] el0_svc_common+0x138/0x258 [ 204.606991][ T6048] do_el0_svc+0x58/0x13c [ 204.607656][ T6048] el0_svc+0x78/0x1d0 [ 204.608271][ T6048] el0t_64_sync_handler+0xcc/0xe4 [ 204.609123][ T6048] el0t_64_sync+0x1a0/0x1a4 [ 204.610164][ T6048] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.612257][ T6048] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.811166][ T6050] loop1: detected capacity change from 0 to 32768 [ 204.845343][ T6050] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.846494][ T6050] CPU: 1 PID: 6050 Comm: syz.1.567 Not tainted syzkaller #0 [ 204.847682][ T6050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 204.849378][ T6050] Call trace: [ 204.849914][ T6050] dump_backtrace+0x0/0x458 [ 204.850619][ T6050] show_stack+0x2c/0x3c [ 204.851240][ T6050] __dump_stack+0x30/0x40 [ 204.851933][ T6050] dump_stack_lvl+0xf4/0x15c [ 204.852627][ T6050] dump_stack+0x1c/0x5c [ 204.853294][ T6050] sysfs_create_dir_ns+0x244/0x264 [ 204.854101][ T6050] kobject_add_internal+0x5ac/0xc3c [ 204.854921][ T6050] kobject_init_and_add+0x124/0x190 [ 204.855751][ T6050] gfs2_sys_fs_add+0x200/0x41c [ 204.856564][ T6050] gfs2_fill_super+0xddc/0x1a18 [ 204.857361][ T6050] get_tree_bdev+0x358/0x544 [ 204.858115][ T6050] gfs2_get_tree+0x54/0x1b4 [ 204.858883][ T6050] vfs_get_tree+0x90/0x274 [ 204.859620][ T6050] do_new_mount+0x228/0x810 [ 204.860398][ T6050] path_mount+0x5bc/0x1008 [ 204.861121][ T6050] __arm64_sys_mount+0x514/0x5f0 [ 204.861932][ T6050] invoke_syscall+0x98/0x2b0 [ 204.862735][ T6050] el0_svc_common+0x138/0x258 [ 204.863523][ T6050] do_el0_svc+0x58/0x13c [ 204.864240][ T6050] el0_svc+0x78/0x1d0 [ 204.864905][ T6050] el0t_64_sync_handler+0xcc/0xe4 [ 204.865726][ T6050] el0t_64_sync+0x1a0/0x1a4 [ 204.868324][ T6050] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.870266][ T6050] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.003925][ T6052] loop1: detected capacity change from 0 to 32768 [ 205.012026][ T6052] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.013173][ T6052] CPU: 1 PID: 6052 Comm: syz.1.568 Not tainted syzkaller #0 [ 205.014295][ T6052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 205.015956][ T6052] Call trace: [ 205.016523][ T6052] dump_backtrace+0x0/0x458 [ 205.017254][ T6052] show_stack+0x2c/0x3c [ 205.017921][ T6052] __dump_stack+0x30/0x40 [ 205.018570][ T6052] dump_stack_lvl+0xf4/0x15c [ 205.019262][ T6052] dump_stack+0x1c/0x5c [ 205.019913][ T6052] sysfs_create_dir_ns+0x244/0x264 [ 205.020677][ T6052] kobject_add_internal+0x5ac/0xc3c [ 205.021518][ T6052] kobject_init_and_add+0x124/0x190 [ 205.022296][ T6052] gfs2_sys_fs_add+0x200/0x41c [ 205.023091][ T6052] gfs2_fill_super+0xddc/0x1a18 [ 205.023902][ T6052] get_tree_bdev+0x358/0x544 [ 205.024659][ T6052] gfs2_get_tree+0x54/0x1b4 [ 205.025367][ T6052] vfs_get_tree+0x90/0x274 [ 205.026094][ T6052] do_new_mount+0x228/0x810 [ 205.026882][ T6052] path_mount+0x5bc/0x1008 [ 205.027617][ T6052] __arm64_sys_mount+0x514/0x5f0 [ 205.028470][ T6052] invoke_syscall+0x98/0x2b0 [ 205.029211][ T6052] el0_svc_common+0x138/0x258 [ 205.029970][ T6052] do_el0_svc+0x58/0x13c [ 205.030607][ T6052] el0_svc+0x78/0x1d0 [ 205.031248][ T6052] el0t_64_sync_handler+0xcc/0xe4 [ 205.032075][ T6052] el0t_64_sync+0x1a0/0x1a4 [ 205.034148][ T6052] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.036211][ T6052] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.170727][ T6054] loop1: detected capacity change from 0 to 32768 [ 205.205641][ T6054] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.206819][ T6054] CPU: 1 PID: 6054 Comm: syz.1.569 Not tainted syzkaller #0 [ 205.207910][ T6054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 205.209575][ T6054] Call trace: [ 205.210100][ T6054] dump_backtrace+0x0/0x458 [ 205.210799][ T6054] show_stack+0x2c/0x3c [ 205.211477][ T6054] __dump_stack+0x30/0x40 [ 205.212208][ T6054] dump_stack_lvl+0xf4/0x15c [ 205.212914][ T6054] dump_stack+0x1c/0x5c [ 205.213569][ T6054] sysfs_create_dir_ns+0x244/0x264 [ 205.214396][ T6054] kobject_add_internal+0x5ac/0xc3c [ 205.215203][ T6054] kobject_init_and_add+0x124/0x190 [ 205.216029][ T6054] gfs2_sys_fs_add+0x200/0x41c [ 205.216781][ T6054] gfs2_fill_super+0xddc/0x1a18 [ 205.217582][ T6054] get_tree_bdev+0x358/0x544 [ 205.218374][ T6054] gfs2_get_tree+0x54/0x1b4 [ 205.219103][ T6054] vfs_get_tree+0x90/0x274 [ 205.219834][ T6054] do_new_mount+0x228/0x810 [ 205.220535][ T6054] path_mount+0x5bc/0x1008 [ 205.221268][ T6054] __arm64_sys_mount+0x514/0x5f0 [ 205.222089][ T6054] invoke_syscall+0x98/0x2b0 [ 205.222838][ T6054] el0_svc_common+0x138/0x258 [ 205.223585][ T6054] do_el0_svc+0x58/0x13c [ 205.224253][ T6054] el0_svc+0x78/0x1d0 [ 205.224883][ T6054] el0t_64_sync_handler+0xcc/0xe4 [ 205.225675][ T6054] el0t_64_sync+0x1a0/0x1a4 [ 205.227160][ T6054] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.229154][ T6054] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.364641][ T6056] loop1: detected capacity change from 0 to 32768 [ 205.415387][ T6056] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.416589][ T6056] CPU: 1 PID: 6056 Comm: syz.1.570 Not tainted syzkaller #0 [ 205.417805][ T6056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 205.419365][ T6056] Call trace: [ 205.419962][ T6056] dump_backtrace+0x0/0x458 [ 205.420783][ T6056] show_stack+0x2c/0x3c [ 205.421496][ T6056] __dump_stack+0x30/0x40 [ 205.422224][ T6056] dump_stack_lvl+0xf4/0x15c [ 205.422998][ T6056] dump_stack+0x1c/0x5c [ 205.423675][ T6056] sysfs_create_dir_ns+0x244/0x264 [ 205.424535][ T6056] kobject_add_internal+0x5ac/0xc3c [ 205.425386][ T6056] kobject_init_and_add+0x124/0x190 [ 205.426269][ T6056] gfs2_sys_fs_add+0x200/0x41c [ 205.427070][ T6056] gfs2_fill_super+0xddc/0x1a18 [ 205.427919][ T6056] get_tree_bdev+0x358/0x544 [ 205.428695][ T6056] gfs2_get_tree+0x54/0x1b4 [ 205.429426][ T6056] vfs_get_tree+0x90/0x274 [ 205.430146][ T6056] do_new_mount+0x228/0x810 [ 205.430889][ T6056] path_mount+0x5bc/0x1008 [ 205.431645][ T6056] __arm64_sys_mount+0x514/0x5f0 [ 205.432559][ T6056] invoke_syscall+0x98/0x2b0 [ 205.433349][ T6056] el0_svc_common+0x138/0x258 [ 205.434153][ T6056] do_el0_svc+0x58/0x13c [ 205.434849][ T6056] el0_svc+0x78/0x1d0 [ 205.435535][ T6056] el0t_64_sync_handler+0xcc/0xe4 [ 205.436387][ T6056] el0t_64_sync+0x1a0/0x1a4 [ 205.439151][ T6056] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.441203][ T6056] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.577794][ T6058] loop1: detected capacity change from 0 to 32768 [ 205.682085][ T6058] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.683354][ T6058] CPU: 0 PID: 6058 Comm: syz.1.571 Not tainted syzkaller #0 [ 205.684501][ T6058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 205.686072][ T6058] Call trace: [ 205.686565][ T6058] dump_backtrace+0x0/0x458 [ 205.687282][ T6058] show_stack+0x2c/0x3c [ 205.687939][ T6058] __dump_stack+0x30/0x40 [ 205.688596][ T6058] dump_stack_lvl+0xf4/0x15c [ 205.689312][ T6058] dump_stack+0x1c/0x5c [ 205.689973][ T6058] sysfs_create_dir_ns+0x244/0x264 [ 205.690795][ T6058] kobject_add_internal+0x5ac/0xc3c [ 205.691616][ T6058] kobject_init_and_add+0x124/0x190 [ 205.692388][ T6058] gfs2_sys_fs_add+0x200/0x41c [ 205.693102][ T6058] gfs2_fill_super+0xddc/0x1a18 [ 205.693825][ T6058] get_tree_bdev+0x358/0x544 [ 205.694532][ T6058] gfs2_get_tree+0x54/0x1b4 [ 205.695199][ T6058] vfs_get_tree+0x90/0x274 [ 205.695835][ T6058] do_new_mount+0x228/0x810 [ 205.696558][ T6058] path_mount+0x5bc/0x1008 [ 205.697291][ T6058] __arm64_sys_mount+0x514/0x5f0 [ 205.698119][ T6058] invoke_syscall+0x98/0x2b0 [ 205.698841][ T6058] el0_svc_common+0x138/0x258 [ 205.699551][ T6058] do_el0_svc+0x58/0x13c [ 205.700178][ T6058] el0_svc+0x78/0x1d0 [ 205.700773][ T6058] el0t_64_sync_handler+0xcc/0xe4 [ 205.701470][ T6058] el0t_64_sync+0x1a0/0x1a4 [ 205.702391][ T6058] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.704499][ T6058] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.840391][ T6060] loop1: detected capacity change from 0 to 32768 [ 205.903183][ T6060] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.905113][ T6060] CPU: 1 PID: 6060 Comm: syz.1.572 Not tainted syzkaller #0 [ 205.906274][ T6060] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 205.907743][ T6060] Call trace: [ 205.908214][ T6060] dump_backtrace+0x0/0x458 [ 205.908888][ T6060] show_stack+0x2c/0x3c [ 205.909611][ T6060] __dump_stack+0x30/0x40 [ 205.910315][ T6060] dump_stack_lvl+0xf4/0x15c [ 205.911102][ T6060] dump_stack+0x1c/0x5c [ 205.911778][ T6060] sysfs_create_dir_ns+0x244/0x264 [ 205.912619][ T6060] kobject_add_internal+0x5ac/0xc3c [ 205.913500][ T6060] kobject_init_and_add+0x124/0x190 [ 205.914326][ T6060] gfs2_sys_fs_add+0x200/0x41c [ 205.915094][ T6060] gfs2_fill_super+0xddc/0x1a18 [ 205.915947][ T6060] get_tree_bdev+0x358/0x544 [ 205.916663][ T6060] gfs2_get_tree+0x54/0x1b4 [ 205.917383][ T6060] vfs_get_tree+0x90/0x274 [ 205.918093][ T6060] do_new_mount+0x228/0x810 [ 205.918874][ T6060] path_mount+0x5bc/0x1008 [ 205.919633][ T6060] __arm64_sys_mount+0x514/0x5f0 [ 205.920463][ T6060] invoke_syscall+0x98/0x2b0 [ 205.921200][ T6060] el0_svc_common+0x138/0x258 [ 205.921971][ T6060] do_el0_svc+0x58/0x13c [ 205.922640][ T6060] el0_svc+0x78/0x1d0 [ 205.923269][ T6060] el0t_64_sync_handler+0xcc/0xe4 [ 205.924090][ T6060] el0t_64_sync+0x1a0/0x1a4 [ 205.926312][ T6060] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.928137][ T6060] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.061569][ T6062] loop1: detected capacity change from 0 to 32768 [ 206.100240][ T6062] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.101481][ T6062] CPU: 0 PID: 6062 Comm: syz.1.573 Not tainted syzkaller #0 [ 206.102647][ T6062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 206.104160][ T6062] Call trace: [ 206.104722][ T6062] dump_backtrace+0x0/0x458 [ 206.105448][ T6062] show_stack+0x2c/0x3c [ 206.106115][ T6062] __dump_stack+0x30/0x40 [ 206.106795][ T6062] dump_stack_lvl+0xf4/0x15c [ 206.107495][ T6062] dump_stack+0x1c/0x5c [ 206.108136][ T6062] sysfs_create_dir_ns+0x244/0x264 [ 206.108929][ T6062] kobject_add_internal+0x5ac/0xc3c [ 206.109741][ T6062] kobject_init_and_add+0x124/0x190 [ 206.110534][ T6062] gfs2_sys_fs_add+0x200/0x41c [ 206.111350][ T6062] gfs2_fill_super+0xddc/0x1a18 [ 206.112185][ T6062] get_tree_bdev+0x358/0x544 [ 206.112975][ T6062] gfs2_get_tree+0x54/0x1b4 [ 206.113655][ T6062] vfs_get_tree+0x90/0x274 [ 206.114311][ T6062] do_new_mount+0x228/0x810 [ 206.115027][ T6062] path_mount+0x5bc/0x1008 [ 206.115694][ T6062] __arm64_sys_mount+0x514/0x5f0 [ 206.116398][ T6062] invoke_syscall+0x98/0x2b0 [ 206.117098][ T6062] el0_svc_common+0x138/0x258 [ 206.117819][ T6062] do_el0_svc+0x58/0x13c [ 206.118468][ T6062] el0_svc+0x78/0x1d0 [ 206.119085][ T6062] el0t_64_sync_handler+0xcc/0xe4 [ 206.119869][ T6062] el0t_64_sync+0x1a0/0x1a4 [ 206.120770][ T6062] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.122796][ T6062] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.262838][ T6064] loop1: detected capacity change from 0 to 32768 [ 206.329685][ T6064] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.330839][ T6064] CPU: 0 PID: 6064 Comm: syz.1.574 Not tainted syzkaller #0 [ 206.332078][ T6064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 206.333692][ T6064] Call trace: [ 206.334210][ T6064] dump_backtrace+0x0/0x458 [ 206.334909][ T6064] show_stack+0x2c/0x3c [ 206.335510][ T6064] __dump_stack+0x30/0x40 [ 206.336262][ T6064] dump_stack_lvl+0xf4/0x15c [ 206.337042][ T6064] dump_stack+0x1c/0x5c [ 206.337700][ T6064] sysfs_create_dir_ns+0x244/0x264 [ 206.338509][ T6064] kobject_add_internal+0x5ac/0xc3c [ 206.339364][ T6064] kobject_init_and_add+0x124/0x190 [ 206.340210][ T6064] gfs2_sys_fs_add+0x200/0x41c [ 206.340999][ T6064] gfs2_fill_super+0xddc/0x1a18 [ 206.341703][ T6064] get_tree_bdev+0x358/0x544 [ 206.342358][ T6064] gfs2_get_tree+0x54/0x1b4 [ 206.343128][ T6064] vfs_get_tree+0x90/0x274 [ 206.343827][ T6064] do_new_mount+0x228/0x810 [ 206.344583][ T6064] path_mount+0x5bc/0x1008 [ 206.345294][ T6064] __arm64_sys_mount+0x514/0x5f0 [ 206.346113][ T6064] invoke_syscall+0x98/0x2b0 [ 206.346852][ T6064] el0_svc_common+0x138/0x258 [ 206.347586][ T6064] do_el0_svc+0x58/0x13c [ 206.348244][ T6064] el0_svc+0x78/0x1d0 [ 206.348934][ T6064] el0t_64_sync_handler+0xcc/0xe4 [ 206.349802][ T6064] el0t_64_sync+0x1a0/0x1a4 [ 206.350732][ T6064] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.352613][ T6064] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.491129][ T6066] loop1: detected capacity change from 0 to 32768 [ 206.578668][ T6066] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.579823][ T6066] CPU: 0 PID: 6066 Comm: syz.1.575 Not tainted syzkaller #0 [ 206.580964][ T6066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 206.582392][ T6066] Call trace: [ 206.582835][ T6066] dump_backtrace+0x0/0x458 [ 206.583485][ T6066] show_stack+0x2c/0x3c [ 206.584056][ T6066] __dump_stack+0x30/0x40 [ 206.584701][ T6066] dump_stack_lvl+0xf4/0x15c [ 206.585474][ T6066] dump_stack+0x1c/0x5c [ 206.586143][ T6066] sysfs_create_dir_ns+0x244/0x264 [ 206.586975][ T6066] kobject_add_internal+0x5ac/0xc3c [ 206.587799][ T6066] kobject_init_and_add+0x124/0x190 [ 206.588627][ T6066] gfs2_sys_fs_add+0x200/0x41c [ 206.589367][ T6066] gfs2_fill_super+0xddc/0x1a18 [ 206.590154][ T6066] get_tree_bdev+0x358/0x544 [ 206.590890][ T6066] gfs2_get_tree+0x54/0x1b4 [ 206.591622][ T6066] vfs_get_tree+0x90/0x274 [ 206.592325][ T6066] do_new_mount+0x228/0x810 [ 206.592979][ T6066] path_mount+0x5bc/0x1008 [ 206.593605][ T6066] __arm64_sys_mount+0x514/0x5f0 [ 206.594303][ T6066] invoke_syscall+0x98/0x2b0 [ 206.594967][ T6066] el0_svc_common+0x138/0x258 [ 206.595677][ T6066] do_el0_svc+0x58/0x13c [ 206.596292][ T6066] el0_svc+0x78/0x1d0 [ 206.596969][ T6066] el0t_64_sync_handler+0xcc/0xe4 [ 206.597820][ T6066] el0t_64_sync+0x1a0/0x1a4 [ 206.598733][ T6066] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.600695][ T6066] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.765442][ T6068] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.766600][ T6068] CPU: 0 PID: 6068 Comm: syz.1.576 Not tainted syzkaller #0 [ 206.767735][ T6068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 206.769288][ T6068] Call trace: [ 206.769773][ T6068] dump_backtrace+0x0/0x458 [ 206.770509][ T6068] show_stack+0x2c/0x3c [ 206.771101][ T6068] __dump_stack+0x30/0x40 [ 206.771718][ T6068] dump_stack_lvl+0xf4/0x15c [ 206.772413][ T6068] dump_stack+0x1c/0x5c [ 206.773075][ T6068] sysfs_create_dir_ns+0x244/0x264 [ 206.773820][ T6068] kobject_add_internal+0x5ac/0xc3c [ 206.774639][ T6068] kobject_init_and_add+0x124/0x190 [ 206.775530][ T6068] gfs2_sys_fs_add+0x200/0x41c [ 206.776330][ T6068] gfs2_fill_super+0xddc/0x1a18 [ 206.777098][ T6068] get_tree_bdev+0x358/0x544 [ 206.777845][ T6068] gfs2_get_tree+0x54/0x1b4 [ 206.778577][ T6068] vfs_get_tree+0x90/0x274 [ 206.779285][ T6068] do_new_mount+0x228/0x810 [ 206.780045][ T6068] path_mount+0x5bc/0x1008 [ 206.780774][ T6068] __arm64_sys_mount+0x514/0x5f0 [ 206.781618][ T6068] invoke_syscall+0x98/0x2b0 [ 206.782350][ T6068] el0_svc_common+0x138/0x258 [ 206.783120][ T6068] do_el0_svc+0x58/0x13c [ 206.783787][ T6068] el0_svc+0x78/0x1d0 [ 206.784363][ T6068] el0t_64_sync_handler+0xcc/0xe4 [ 206.785120][ T6068] el0t_64_sync+0x1a0/0x1a4 [ 206.786155][ T6068] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.788349][ T6068] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.972112][ T6070] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.973293][ T6070] CPU: 1 PID: 6070 Comm: syz.1.577 Not tainted syzkaller #0 [ 206.974474][ T6070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 206.976078][ T6070] Call trace: [ 206.976636][ T6070] dump_backtrace+0x0/0x458 [ 206.977371][ T6070] show_stack+0x2c/0x3c [ 206.978032][ T6070] __dump_stack+0x30/0x40 [ 206.978731][ T6070] dump_stack_lvl+0xf4/0x15c [ 206.979474][ T6070] dump_stack+0x1c/0x5c [ 206.980130][ T6070] sysfs_create_dir_ns+0x244/0x264 [ 206.980972][ T6070] kobject_add_internal+0x5ac/0xc3c [ 206.981838][ T6070] kobject_init_and_add+0x124/0x190 [ 206.982695][ T6070] gfs2_sys_fs_add+0x200/0x41c [ 206.983480][ T6070] gfs2_fill_super+0xddc/0x1a18 [ 206.984269][ T6070] get_tree_bdev+0x358/0x544 [ 206.985017][ T6070] gfs2_get_tree+0x54/0x1b4 [ 206.985831][ T6070] vfs_get_tree+0x90/0x274 [ 206.986556][ T6070] do_new_mount+0x228/0x810 [ 206.987265][ T6070] path_mount+0x5bc/0x1008 [ 206.988012][ T6070] __arm64_sys_mount+0x514/0x5f0 [ 206.988824][ T6070] invoke_syscall+0x98/0x2b0 [ 206.989589][ T6070] el0_svc_common+0x138/0x258 [ 206.990341][ T6070] do_el0_svc+0x58/0x13c [ 206.990999][ T6070] el0_svc+0x78/0x1d0 [ 206.991602][ T6070] el0t_64_sync_handler+0xcc/0xe4 [ 206.992386][ T6070] el0t_64_sync+0x1a0/0x1a4 [ 206.994986][ T6070] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.997009][ T6070] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.175576][ T6072] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.176897][ T6072] CPU: 1 PID: 6072 Comm: syz.1.578 Not tainted syzkaller #0 [ 207.178034][ T6072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 207.179679][ T6072] Call trace: [ 207.180196][ T6072] dump_backtrace+0x0/0x458 [ 207.180831][ T6072] show_stack+0x2c/0x3c [ 207.181390][ T6072] __dump_stack+0x30/0x40 [ 207.182020][ T6072] dump_stack_lvl+0xf4/0x15c [ 207.182732][ T6072] dump_stack+0x1c/0x5c [ 207.183348][ T6072] sysfs_create_dir_ns+0x244/0x264 [ 207.184145][ T6072] kobject_add_internal+0x5ac/0xc3c [ 207.184968][ T6072] kobject_init_and_add+0x124/0x190 [ 207.185794][ T6072] gfs2_sys_fs_add+0x200/0x41c [ 207.186495][ T6072] gfs2_fill_super+0xddc/0x1a18 [ 207.187208][ T6072] get_tree_bdev+0x358/0x544 [ 207.187888][ T6072] gfs2_get_tree+0x54/0x1b4 [ 207.188546][ T6072] vfs_get_tree+0x90/0x274 [ 207.189207][ T6072] do_new_mount+0x228/0x810 [ 207.189854][ T6072] path_mount+0x5bc/0x1008 [ 207.190512][ T6072] __arm64_sys_mount+0x514/0x5f0 [ 207.191238][ T6072] invoke_syscall+0x98/0x2b0 [ 207.191944][ T6072] el0_svc_common+0x138/0x258 [ 207.192713][ T6072] do_el0_svc+0x58/0x13c [ 207.193322][ T6072] el0_svc+0x78/0x1d0 [ 207.193918][ T6072] el0t_64_sync_handler+0xcc/0xe4 [ 207.194675][ T6072] el0t_64_sync+0x1a0/0x1a4 [ 207.197046][ T6072] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.198862][ T6072] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.444188][ T6074] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.445480][ T6074] CPU: 1 PID: 6074 Comm: syz.1.579 Not tainted syzkaller #0 [ 207.446670][ T6074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 207.448324][ T6074] Call trace: [ 207.448805][ T6074] dump_backtrace+0x0/0x458 [ 207.449597][ T6074] show_stack+0x2c/0x3c [ 207.450289][ T6074] __dump_stack+0x30/0x40 [ 207.450967][ T6074] dump_stack_lvl+0xf4/0x15c [ 207.451637][ T6074] dump_stack+0x1c/0x5c [ 207.452297][ T6074] sysfs_create_dir_ns+0x244/0x264 [ 207.453133][ T6074] kobject_add_internal+0x5ac/0xc3c [ 207.454020][ T6074] kobject_init_and_add+0x124/0x190 [ 207.454859][ T6074] gfs2_sys_fs_add+0x200/0x41c [ 207.455604][ T6074] gfs2_fill_super+0xddc/0x1a18 [ 207.456401][ T6074] get_tree_bdev+0x358/0x544 [ 207.457188][ T6074] gfs2_get_tree+0x54/0x1b4 [ 207.457956][ T6074] vfs_get_tree+0x90/0x274 [ 207.458703][ T6074] do_new_mount+0x228/0x810 [ 207.459448][ T6074] path_mount+0x5bc/0x1008 [ 207.460205][ T6074] __arm64_sys_mount+0x514/0x5f0 [ 207.461047][ T6074] invoke_syscall+0x98/0x2b0 [ 207.461775][ T6074] el0_svc_common+0x138/0x258 [ 207.462524][ T6074] do_el0_svc+0x58/0x13c [ 207.463195][ T6074] el0_svc+0x78/0x1d0 [ 207.463783][ T6074] el0t_64_sync_handler+0xcc/0xe4 [ 207.464519][ T6074] el0t_64_sync+0x1a0/0x1a4 [ 207.466003][ T6074] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.468042][ T6074] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.763848][ T6076] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.766759][ T6076] CPU: 0 PID: 6076 Comm: syz.1.580 Not tainted syzkaller #0 [ 207.767941][ T6076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 207.769505][ T6076] Call trace: [ 207.769978][ T6076] dump_backtrace+0x0/0x458 [ 207.770643][ T6076] show_stack+0x2c/0x3c [ 207.771283][ T6076] __dump_stack+0x30/0x40 [ 207.771918][ T6076] dump_stack_lvl+0xf4/0x15c [ 207.772607][ T6076] dump_stack+0x1c/0x5c [ 207.773262][ T6076] sysfs_create_dir_ns+0x244/0x264 [ 207.774086][ T6076] kobject_add_internal+0x5ac/0xc3c [ 207.774891][ T6076] kobject_init_and_add+0x124/0x190 [ 207.775682][ T6076] gfs2_sys_fs_add+0x200/0x41c [ 207.776411][ T6076] gfs2_fill_super+0xddc/0x1a18 [ 207.777175][ T6076] get_tree_bdev+0x358/0x544 [ 207.777875][ T6076] gfs2_get_tree+0x54/0x1b4 [ 207.778601][ T6076] vfs_get_tree+0x90/0x274 [ 207.779272][ T6076] do_new_mount+0x228/0x810 [ 207.779959][ T6076] path_mount+0x5bc/0x1008 [ 207.780605][ T6076] __arm64_sys_mount+0x514/0x5f0 [ 207.781381][ T6076] invoke_syscall+0x98/0x2b0 [ 207.782069][ T6076] el0_svc_common+0x138/0x258 [ 207.782792][ T6076] do_el0_svc+0x58/0x13c [ 207.783429][ T6076] el0_svc+0x78/0x1d0 [ 207.784032][ T6076] el0t_64_sync_handler+0xcc/0xe4 [ 207.784791][ T6076] el0t_64_sync+0x1a0/0x1a4 [ 207.789701][ T6076] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.791645][ T6076] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.937402][ T6078] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.938639][ T6078] CPU: 1 PID: 6078 Comm: syz.1.581 Not tainted syzkaller #0 [ 207.939801][ T6078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 207.941471][ T6078] Call trace: [ 207.942084][ T6078] dump_backtrace+0x0/0x458 [ 207.942875][ T6078] show_stack+0x2c/0x3c [ 207.943561][ T6078] __dump_stack+0x30/0x40 [ 207.944242][ T6078] dump_stack_lvl+0xf4/0x15c [ 207.944967][ T6078] dump_stack+0x1c/0x5c [ 207.945722][ T6078] sysfs_create_dir_ns+0x244/0x264 [ 207.946567][ T6078] kobject_add_internal+0x5ac/0xc3c [ 207.947404][ T6078] kobject_init_and_add+0x124/0x190 [ 207.948323][ T6078] gfs2_sys_fs_add+0x200/0x41c [ 207.949147][ T6078] gfs2_fill_super+0xddc/0x1a18 [ 207.949988][ T6078] get_tree_bdev+0x358/0x544 [ 207.950788][ T6078] gfs2_get_tree+0x54/0x1b4 [ 207.951534][ T6078] vfs_get_tree+0x90/0x274 [ 207.952215][ T6078] do_new_mount+0x228/0x810 [ 207.952959][ T6078] path_mount+0x5bc/0x1008 [ 207.953654][ T6078] __arm64_sys_mount+0x514/0x5f0 [ 207.954439][ T6078] invoke_syscall+0x98/0x2b0 [ 207.955156][ T6078] el0_svc_common+0x138/0x258 [ 207.955923][ T6078] do_el0_svc+0x58/0x13c [ 207.956650][ T6078] el0_svc+0x78/0x1d0 [ 207.957328][ T6078] el0t_64_sync_handler+0xcc/0xe4 [ 207.958156][ T6078] el0t_64_sync+0x1a0/0x1a4 [ 207.959718][ T6078] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.961672][ T6078] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.097520][ T6080] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.098692][ T6080] CPU: 0 PID: 6080 Comm: syz.1.582 Not tainted syzkaller #0 [ 208.099757][ T6080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 208.101268][ T6080] Call trace: [ 208.101763][ T6080] dump_backtrace+0x0/0x458 [ 208.102508][ T6080] show_stack+0x2c/0x3c [ 208.103151][ T6080] __dump_stack+0x30/0x40 [ 208.103840][ T6080] dump_stack_lvl+0xf4/0x15c [ 208.104636][ T6080] dump_stack+0x1c/0x5c [ 208.105311][ T6080] sysfs_create_dir_ns+0x244/0x264 [ 208.106132][ T6080] kobject_add_internal+0x5ac/0xc3c [ 208.106871][ T6080] kobject_init_and_add+0x124/0x190 [ 208.107808][ T6080] gfs2_sys_fs_add+0x200/0x41c [ 208.108551][ T6080] gfs2_fill_super+0xddc/0x1a18 [ 208.109349][ T6080] get_tree_bdev+0x358/0x544 [ 208.110113][ T6080] gfs2_get_tree+0x54/0x1b4 [ 208.110879][ T6080] vfs_get_tree+0x90/0x274 [ 208.111634][ T6080] do_new_mount+0x228/0x810 [ 208.112433][ T6080] path_mount+0x5bc/0x1008 [ 208.113198][ T6080] __arm64_sys_mount+0x514/0x5f0 [ 208.114094][ T6080] invoke_syscall+0x98/0x2b0 [ 208.114922][ T6080] el0_svc_common+0x138/0x258 [ 208.115689][ T6080] do_el0_svc+0x58/0x13c [ 208.116361][ T6080] el0_svc+0x78/0x1d0 [ 208.116964][ T6080] el0t_64_sync_handler+0xcc/0xe4 [ 208.117774][ T6080] el0t_64_sync+0x1a0/0x1a4 [ 208.120032][ T6080] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.122197][ T6080] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.348606][ T6082] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.349812][ T6082] CPU: 0 PID: 6082 Comm: syz.1.583 Not tainted syzkaller #0 [ 208.350942][ T6082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 208.352413][ T6082] Call trace: [ 208.352881][ T6082] dump_backtrace+0x0/0x458 [ 208.353535][ T6082] show_stack+0x2c/0x3c [ 208.354143][ T6082] __dump_stack+0x30/0x40 [ 208.354851][ T6082] dump_stack_lvl+0xf4/0x15c [ 208.355614][ T6082] dump_stack+0x1c/0x5c [ 208.356259][ T6082] sysfs_create_dir_ns+0x244/0x264 [ 208.357083][ T6082] kobject_add_internal+0x5ac/0xc3c [ 208.357918][ T6082] kobject_init_and_add+0x124/0x190 [ 208.358734][ T6082] gfs2_sys_fs_add+0x200/0x41c [ 208.359488][ T6082] gfs2_fill_super+0xddc/0x1a18 [ 208.360310][ T6082] get_tree_bdev+0x358/0x544 [ 208.361042][ T6082] gfs2_get_tree+0x54/0x1b4 [ 208.361777][ T6082] vfs_get_tree+0x90/0x274 [ 208.362506][ T6082] do_new_mount+0x228/0x810 [ 208.363314][ T6082] path_mount+0x5bc/0x1008 [ 208.364007][ T6082] __arm64_sys_mount+0x514/0x5f0 [ 208.364858][ T6082] invoke_syscall+0x98/0x2b0 [ 208.365676][ T6082] el0_svc_common+0x138/0x258 [ 208.366476][ T6082] do_el0_svc+0x58/0x13c [ 208.367192][ T6082] el0_svc+0x78/0x1d0 [ 208.367837][ T6082] el0t_64_sync_handler+0xcc/0xe4 [ 208.368615][ T6082] el0t_64_sync+0x1a0/0x1a4 [ 208.370850][ T6082] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.372988][ T6082] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.514749][ T6084] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.515988][ T6084] CPU: 1 PID: 6084 Comm: syz.1.584 Not tainted syzkaller #0 [ 208.517146][ T6084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 208.518712][ T6084] Call trace: [ 208.519217][ T6084] dump_backtrace+0x0/0x458 [ 208.519982][ T6084] show_stack+0x2c/0x3c [ 208.520628][ T6084] __dump_stack+0x30/0x40 [ 208.521292][ T6084] dump_stack_lvl+0xf4/0x15c [ 208.521997][ T6084] dump_stack+0x1c/0x5c [ 208.522615][ T6084] sysfs_create_dir_ns+0x244/0x264 [ 208.523428][ T6084] kobject_add_internal+0x5ac/0xc3c [ 208.524198][ T6084] kobject_init_and_add+0x124/0x190 [ 208.525086][ T6084] gfs2_sys_fs_add+0x200/0x41c [ 208.525875][ T6084] gfs2_fill_super+0xddc/0x1a18 [ 208.526686][ T6084] get_tree_bdev+0x358/0x544 [ 208.527438][ T6084] gfs2_get_tree+0x54/0x1b4 [ 208.528211][ T6084] vfs_get_tree+0x90/0x274 [ 208.528917][ T6084] do_new_mount+0x228/0x810 [ 208.529622][ T6084] path_mount+0x5bc/0x1008 [ 208.530293][ T6084] __arm64_sys_mount+0x514/0x5f0 [ 208.531019][ T6084] invoke_syscall+0x98/0x2b0 [ 208.531771][ T6084] el0_svc_common+0x138/0x258 [ 208.532499][ T6084] do_el0_svc+0x58/0x13c [ 208.533220][ T6084] el0_svc+0x78/0x1d0 [ 208.533868][ T6084] el0t_64_sync_handler+0xcc/0xe4 [ 208.534709][ T6084] el0t_64_sync+0x1a0/0x1a4 [ 208.536697][ T6084] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.538651][ T6084] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.709745][ T6086] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.710958][ T6086] CPU: 0 PID: 6086 Comm: syz.1.585 Not tainted syzkaller #0 [ 208.712065][ T6086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 208.713584][ T6086] Call trace: [ 208.714087][ T6086] dump_backtrace+0x0/0x458 [ 208.714822][ T6086] show_stack+0x2c/0x3c [ 208.715490][ T6086] __dump_stack+0x30/0x40 [ 208.716161][ T6086] dump_stack_lvl+0xf4/0x15c [ 208.716865][ T6086] dump_stack+0x1c/0x5c [ 208.717529][ T6086] sysfs_create_dir_ns+0x244/0x264 [ 208.718303][ T6086] kobject_add_internal+0x5ac/0xc3c [ 208.719075][ T6086] kobject_init_and_add+0x124/0x190 [ 208.719876][ T6086] gfs2_sys_fs_add+0x200/0x41c [ 208.720618][ T6086] gfs2_fill_super+0xddc/0x1a18 [ 208.721352][ T6086] get_tree_bdev+0x358/0x544 [ 208.722025][ T6086] gfs2_get_tree+0x54/0x1b4 [ 208.722719][ T6086] vfs_get_tree+0x90/0x274 [ 208.723365][ T6086] do_new_mount+0x228/0x810 [ 208.724052][ T6086] path_mount+0x5bc/0x1008 [ 208.724700][ T6086] __arm64_sys_mount+0x514/0x5f0 [ 208.725547][ T6086] invoke_syscall+0x98/0x2b0 [ 208.726327][ T6086] el0_svc_common+0x138/0x258 [ 208.727125][ T6086] do_el0_svc+0x58/0x13c [ 208.727832][ T6086] el0_svc+0x78/0x1d0 [ 208.728478][ T6086] el0t_64_sync_handler+0xcc/0xe4 [ 208.729291][ T6086] el0t_64_sync+0x1a0/0x1a4 [ 208.731550][ T6086] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.733592][ T6086] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.919790][ T6088] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.921015][ T6088] CPU: 0 PID: 6088 Comm: syz.1.586 Not tainted syzkaller #0 [ 208.922176][ T6088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 208.923863][ T6088] Call trace: [ 208.924368][ T6088] dump_backtrace+0x0/0x458 [ 208.925092][ T6088] show_stack+0x2c/0x3c [ 208.925797][ T6088] __dump_stack+0x30/0x40 [ 208.926511][ T6088] dump_stack_lvl+0xf4/0x15c [ 208.927309][ T6088] dump_stack+0x1c/0x5c [ 208.928024][ T6088] sysfs_create_dir_ns+0x244/0x264 [ 208.928921][ T6088] kobject_add_internal+0x5ac/0xc3c [ 208.929764][ T6088] kobject_init_and_add+0x124/0x190 [ 208.930639][ T6088] gfs2_sys_fs_add+0x200/0x41c [ 208.931433][ T6088] gfs2_fill_super+0xddc/0x1a18 [ 208.932173][ T6088] get_tree_bdev+0x358/0x544 [ 208.932896][ T6088] gfs2_get_tree+0x54/0x1b4 [ 208.933662][ T6088] vfs_get_tree+0x90/0x274 [ 208.934370][ T6088] do_new_mount+0x228/0x810 [ 208.935058][ T6088] path_mount+0x5bc/0x1008 [ 208.935795][ T6088] __arm64_sys_mount+0x514/0x5f0 [ 208.936635][ T6088] invoke_syscall+0x98/0x2b0 [ 208.937443][ T6088] el0_svc_common+0x138/0x258 [ 208.938217][ T6088] do_el0_svc+0x58/0x13c [ 208.938905][ T6088] el0_svc+0x78/0x1d0 [ 208.939561][ T6088] el0t_64_sync_handler+0xcc/0xe4 [ 208.940333][ T6088] el0t_64_sync+0x1a0/0x1a4 [ 208.942518][ T6088] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.944516][ T6088] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:28 executed programs: 573 [ 209.116864][ T6090] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.118174][ T6090] CPU: 1 PID: 6090 Comm: syz.1.587 Not tainted syzkaller #0 [ 209.119370][ T6090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 209.120989][ T6090] Call trace: [ 209.121524][ T6090] dump_backtrace+0x0/0x458 [ 209.122227][ T6090] show_stack+0x2c/0x3c [ 209.122909][ T6090] __dump_stack+0x30/0x40 [ 209.123636][ T6090] dump_stack_lvl+0xf4/0x15c [ 209.124427][ T6090] dump_stack+0x1c/0x5c [ 209.125169][ T6090] sysfs_create_dir_ns+0x244/0x264 [ 209.126036][ T6090] kobject_add_internal+0x5ac/0xc3c [ 209.126923][ T6090] kobject_init_and_add+0x124/0x190 [ 209.127770][ T6090] gfs2_sys_fs_add+0x200/0x41c [ 209.128534][ T6090] gfs2_fill_super+0xddc/0x1a18 [ 209.129350][ T6090] get_tree_bdev+0x358/0x544 [ 209.130129][ T6090] gfs2_get_tree+0x54/0x1b4 [ 209.130900][ T6090] vfs_get_tree+0x90/0x274 [ 209.131630][ T6090] do_new_mount+0x228/0x810 [ 209.132334][ T6090] path_mount+0x5bc/0x1008 [ 209.133029][ T6090] __arm64_sys_mount+0x514/0x5f0 [ 209.133858][ T6090] invoke_syscall+0x98/0x2b0 [ 209.134576][ T6090] el0_svc_common+0x138/0x258 [ 209.135293][ T6090] do_el0_svc+0x58/0x13c [ 209.136009][ T6090] el0_svc+0x78/0x1d0 [ 209.136677][ T6090] el0t_64_sync_handler+0xcc/0xe4 [ 209.137541][ T6090] el0t_64_sync+0x1a0/0x1a4 [ 209.139080][ T6090] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.140993][ T6090] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.288755][ T6092] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.290028][ T6092] CPU: 1 PID: 6092 Comm: syz.1.588 Not tainted syzkaller #0 [ 209.291187][ T6092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 209.292766][ T6092] Call trace: [ 209.293306][ T6092] dump_backtrace+0x0/0x458 [ 209.294077][ T6092] show_stack+0x2c/0x3c [ 209.294769][ T6092] __dump_stack+0x30/0x40 [ 209.295437][ T6092] dump_stack_lvl+0xf4/0x15c [ 209.296058][ T6092] dump_stack+0x1c/0x5c [ 209.296656][ T6092] sysfs_create_dir_ns+0x244/0x264 [ 209.297478][ T6092] kobject_add_internal+0x5ac/0xc3c [ 209.298261][ T6092] kobject_init_and_add+0x124/0x190 [ 209.299159][ T6092] gfs2_sys_fs_add+0x200/0x41c [ 209.299933][ T6092] gfs2_fill_super+0xddc/0x1a18 [ 209.300750][ T6092] get_tree_bdev+0x358/0x544 [ 209.301476][ T6092] gfs2_get_tree+0x54/0x1b4 [ 209.302232][ T6092] vfs_get_tree+0x90/0x274 [ 209.302988][ T6092] do_new_mount+0x228/0x810 [ 209.303812][ T6092] path_mount+0x5bc/0x1008 [ 209.304541][ T6092] __arm64_sys_mount+0x514/0x5f0 [ 209.305347][ T6092] invoke_syscall+0x98/0x2b0 [ 209.306082][ T6092] el0_svc_common+0x138/0x258 [ 209.306839][ T6092] do_el0_svc+0x58/0x13c [ 209.307489][ T6092] el0_svc+0x78/0x1d0 [ 209.308088][ T6092] el0t_64_sync_handler+0xcc/0xe4 [ 209.308827][ T6092] el0t_64_sync+0x1a0/0x1a4 [ 209.309984][ T6092] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.312020][ T6092] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.495518][ T6094] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.496648][ T6094] CPU: 0 PID: 6094 Comm: syz.1.589 Not tainted syzkaller #0 [ 209.497858][ T6094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 209.499382][ T6094] Call trace: [ 209.499899][ T6094] dump_backtrace+0x0/0x458 [ 209.500646][ T6094] show_stack+0x2c/0x3c [ 209.501320][ T6094] __dump_stack+0x30/0x40 [ 209.502040][ T6094] dump_stack_lvl+0xf4/0x15c [ 209.502778][ T6094] dump_stack+0x1c/0x5c [ 209.503442][ T6094] sysfs_create_dir_ns+0x244/0x264 [ 209.504360][ T6094] kobject_add_internal+0x5ac/0xc3c [ 209.505186][ T6094] kobject_init_and_add+0x124/0x190 [ 209.505993][ T6094] gfs2_sys_fs_add+0x200/0x41c [ 209.506741][ T6094] gfs2_fill_super+0xddc/0x1a18 [ 209.507533][ T6094] get_tree_bdev+0x358/0x544 [ 209.508264][ T6094] gfs2_get_tree+0x54/0x1b4 [ 209.508978][ T6094] vfs_get_tree+0x90/0x274 [ 209.509660][ T6094] do_new_mount+0x228/0x810 [ 209.510392][ T6094] path_mount+0x5bc/0x1008 [ 209.511114][ T6094] __arm64_sys_mount+0x514/0x5f0 [ 209.511866][ T6094] invoke_syscall+0x98/0x2b0 [ 209.512564][ T6094] el0_svc_common+0x138/0x258 [ 209.513277][ T6094] do_el0_svc+0x58/0x13c [ 209.513933][ T6094] el0_svc+0x78/0x1d0 [ 209.514601][ T6094] el0t_64_sync_handler+0xcc/0xe4 [ 209.515426][ T6094] el0t_64_sync+0x1a0/0x1a4 [ 209.517630][ T6094] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.519710][ T6094] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.653568][ T6096] set_capacity_and_notify: 14 callbacks suppressed [ 209.653578][ T6096] loop1: detected capacity change from 0 to 32768 [ 209.685493][ T6096] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.686758][ T6096] CPU: 0 PID: 6096 Comm: syz.1.590 Not tainted syzkaller #0 [ 209.687885][ T6096] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 209.689391][ T6096] Call trace: [ 209.689886][ T6096] dump_backtrace+0x0/0x458 [ 209.690621][ T6096] show_stack+0x2c/0x3c [ 209.691240][ T6096] __dump_stack+0x30/0x40 [ 209.691915][ T6096] dump_stack_lvl+0xf4/0x15c [ 209.692642][ T6096] dump_stack+0x1c/0x5c [ 209.693284][ T6096] sysfs_create_dir_ns+0x244/0x264 [ 209.694047][ T6096] kobject_add_internal+0x5ac/0xc3c [ 209.694837][ T6096] kobject_init_and_add+0x124/0x190 [ 209.695576][ T6096] gfs2_sys_fs_add+0x200/0x41c [ 209.696308][ T6096] gfs2_fill_super+0xddc/0x1a18 [ 209.697057][ T6096] get_tree_bdev+0x358/0x544 [ 209.697831][ T6096] gfs2_get_tree+0x54/0x1b4 [ 209.698560][ T6096] vfs_get_tree+0x90/0x274 [ 209.699259][ T6096] do_new_mount+0x228/0x810 [ 209.699969][ T6096] path_mount+0x5bc/0x1008 [ 209.700671][ T6096] __arm64_sys_mount+0x514/0x5f0 [ 209.701438][ T6096] invoke_syscall+0x98/0x2b0 [ 209.702173][ T6096] el0_svc_common+0x138/0x258 [ 209.702918][ T6096] do_el0_svc+0x58/0x13c [ 209.703568][ T6096] el0_svc+0x78/0x1d0 [ 209.704264][ T6096] el0t_64_sync_handler+0xcc/0xe4 [ 209.705124][ T6096] el0t_64_sync+0x1a0/0x1a4 [ 209.706000][ T6096] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.707957][ T6096] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.893344][ T6098] loop1: detected capacity change from 0 to 32768 [ 209.902725][ T6098] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.903999][ T6098] CPU: 0 PID: 6098 Comm: syz.1.591 Not tainted syzkaller #0 [ 209.905118][ T6098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 209.906802][ T6098] Call trace: [ 209.907357][ T6098] dump_backtrace+0x0/0x458 [ 209.908085][ T6098] show_stack+0x2c/0x3c [ 209.908745][ T6098] __dump_stack+0x30/0x40 [ 209.909455][ T6098] dump_stack_lvl+0xf4/0x15c [ 209.910222][ T6098] dump_stack+0x1c/0x5c [ 209.910864][ T6098] sysfs_create_dir_ns+0x244/0x264 [ 209.911688][ T6098] kobject_add_internal+0x5ac/0xc3c [ 209.912550][ T6098] kobject_init_and_add+0x124/0x190 [ 209.913375][ T6098] gfs2_sys_fs_add+0x200/0x41c [ 209.914157][ T6098] gfs2_fill_super+0xddc/0x1a18 [ 209.914942][ T6098] get_tree_bdev+0x358/0x544 [ 209.915711][ T6098] gfs2_get_tree+0x54/0x1b4 [ 209.916468][ T6098] vfs_get_tree+0x90/0x274 [ 209.917186][ T6098] do_new_mount+0x228/0x810 [ 209.917900][ T6098] path_mount+0x5bc/0x1008 [ 209.918618][ T6098] __arm64_sys_mount+0x514/0x5f0 [ 209.919467][ T6098] invoke_syscall+0x98/0x2b0 [ 209.920226][ T6098] el0_svc_common+0x138/0x258 [ 209.920968][ T6098] do_el0_svc+0x58/0x13c [ 209.921663][ T6098] el0_svc+0x78/0x1d0 [ 209.922321][ T6098] el0t_64_sync_handler+0xcc/0xe4 [ 209.923158][ T6098] el0t_64_sync+0x1a0/0x1a4 [ 209.924463][ T6098] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.926457][ T6098] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.067788][ T6100] loop1: detected capacity change from 0 to 32768 [ 210.125191][ T6100] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.126368][ T6100] CPU: 1 PID: 6100 Comm: syz.1.592 Not tainted syzkaller #0 [ 210.127511][ T6100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 210.129035][ T6100] Call trace: [ 210.129543][ T6100] dump_backtrace+0x0/0x458 [ 210.130243][ T6100] show_stack+0x2c/0x3c [ 210.130845][ T6100] __dump_stack+0x30/0x40 [ 210.131493][ T6100] dump_stack_lvl+0xf4/0x15c [ 210.132228][ T6100] dump_stack+0x1c/0x5c [ 210.132858][ T6100] sysfs_create_dir_ns+0x244/0x264 [ 210.133646][ T6100] kobject_add_internal+0x5ac/0xc3c [ 210.134497][ T6100] kobject_init_and_add+0x124/0x190 [ 210.135308][ T6100] gfs2_sys_fs_add+0x200/0x41c [ 210.136133][ T6100] gfs2_fill_super+0xddc/0x1a18 [ 210.136934][ T6100] get_tree_bdev+0x358/0x544 [ 210.137740][ T6100] gfs2_get_tree+0x54/0x1b4 [ 210.138537][ T6100] vfs_get_tree+0x90/0x274 [ 210.139310][ T6100] do_new_mount+0x228/0x810 [ 210.140073][ T6100] path_mount+0x5bc/0x1008 [ 210.140844][ T6100] __arm64_sys_mount+0x514/0x5f0 [ 210.141643][ T6100] invoke_syscall+0x98/0x2b0 [ 210.142387][ T6100] el0_svc_common+0x138/0x258 [ 210.143166][ T6100] do_el0_svc+0x58/0x13c [ 210.143815][ T6100] el0_svc+0x78/0x1d0 [ 210.144470][ T6100] el0t_64_sync_handler+0xcc/0xe4 [ 210.145258][ T6100] el0t_64_sync+0x1a0/0x1a4 [ 210.147418][ T6100] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.149636][ T6100] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.385322][ T6102] loop1: detected capacity change from 0 to 32768 [ 210.435581][ T6102] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.436809][ T6102] CPU: 1 PID: 6102 Comm: syz.1.593 Not tainted syzkaller #0 [ 210.438033][ T6102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 210.439669][ T6102] Call trace: [ 210.440156][ T6102] dump_backtrace+0x0/0x458 [ 210.440901][ T6102] show_stack+0x2c/0x3c [ 210.441587][ T6102] __dump_stack+0x30/0x40 [ 210.442303][ T6102] dump_stack_lvl+0xf4/0x15c [ 210.443073][ T6102] dump_stack+0x1c/0x5c [ 210.443768][ T6102] sysfs_create_dir_ns+0x244/0x264 [ 210.444713][ T6102] kobject_add_internal+0x5ac/0xc3c [ 210.445551][ T6102] kobject_init_and_add+0x124/0x190 [ 210.446437][ T6102] gfs2_sys_fs_add+0x200/0x41c [ 210.447302][ T6102] gfs2_fill_super+0xddc/0x1a18 [ 210.448106][ T6102] get_tree_bdev+0x358/0x544 [ 210.448858][ T6102] gfs2_get_tree+0x54/0x1b4 [ 210.449598][ T6102] vfs_get_tree+0x90/0x274 [ 210.450387][ T6102] do_new_mount+0x228/0x810 [ 210.451130][ T6102] path_mount+0x5bc/0x1008 [ 210.451878][ T6102] __arm64_sys_mount+0x514/0x5f0 [ 210.452705][ T6102] invoke_syscall+0x98/0x2b0 [ 210.453456][ T6102] el0_svc_common+0x138/0x258 [ 210.454170][ T6102] do_el0_svc+0x58/0x13c [ 210.454842][ T6102] el0_svc+0x78/0x1d0 [ 210.455482][ T6102] el0t_64_sync_handler+0xcc/0xe4 [ 210.456264][ T6102] el0t_64_sync+0x1a0/0x1a4 [ 210.458851][ T6102] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.460965][ T6102] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.594562][ T6104] loop1: detected capacity change from 0 to 32768 [ 210.626640][ T6104] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.627883][ T6104] CPU: 1 PID: 6104 Comm: syz.1.594 Not tainted syzkaller #0 [ 210.629078][ T6104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 210.630712][ T6104] Call trace: [ 210.631228][ T6104] dump_backtrace+0x0/0x458 [ 210.631944][ T6104] show_stack+0x2c/0x3c [ 210.632589][ T6104] __dump_stack+0x30/0x40 [ 210.633293][ T6104] dump_stack_lvl+0xf4/0x15c [ 210.634037][ T6104] dump_stack+0x1c/0x5c [ 210.634698][ T6104] sysfs_create_dir_ns+0x244/0x264 [ 210.635530][ T6104] kobject_add_internal+0x5ac/0xc3c [ 210.636442][ T6104] kobject_init_and_add+0x124/0x190 [ 210.637302][ T6104] gfs2_sys_fs_add+0x200/0x41c [ 210.638155][ T6104] gfs2_fill_super+0xddc/0x1a18 [ 210.638975][ T6104] get_tree_bdev+0x358/0x544 [ 210.639817][ T6104] gfs2_get_tree+0x54/0x1b4 [ 210.640571][ T6104] vfs_get_tree+0x90/0x274 [ 210.641283][ T6104] do_new_mount+0x228/0x810 [ 210.641995][ T6104] path_mount+0x5bc/0x1008 [ 210.642720][ T6104] __arm64_sys_mount+0x514/0x5f0 [ 210.643554][ T6104] invoke_syscall+0x98/0x2b0 [ 210.644323][ T6104] el0_svc_common+0x138/0x258 [ 210.645068][ T6104] do_el0_svc+0x58/0x13c [ 210.645712][ T6104] el0_svc+0x78/0x1d0 [ 210.646338][ T6104] el0t_64_sync_handler+0xcc/0xe4 [ 210.647134][ T6104] el0t_64_sync+0x1a0/0x1a4 [ 210.652086][ T6104] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.655470][ T6104] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.797767][ T6106] loop1: detected capacity change from 0 to 32768 [ 210.833592][ T6106] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.834905][ T6106] CPU: 0 PID: 6106 Comm: syz.1.595 Not tainted syzkaller #0 [ 210.836011][ T6106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 210.837587][ T6106] Call trace: [ 210.838151][ T6106] dump_backtrace+0x0/0x458 [ 210.838841][ T6106] show_stack+0x2c/0x3c [ 210.839508][ T6106] __dump_stack+0x30/0x40 [ 210.840225][ T6106] dump_stack_lvl+0xf4/0x15c [ 210.840895][ T6106] dump_stack+0x1c/0x5c [ 210.841529][ T6106] sysfs_create_dir_ns+0x244/0x264 [ 210.842290][ T6106] kobject_add_internal+0x5ac/0xc3c [ 210.843144][ T6106] kobject_init_and_add+0x124/0x190 [ 210.843937][ T6106] gfs2_sys_fs_add+0x200/0x41c [ 210.844698][ T6106] gfs2_fill_super+0xddc/0x1a18 [ 210.845479][ T6106] get_tree_bdev+0x358/0x544 [ 210.846181][ T6106] gfs2_get_tree+0x54/0x1b4 [ 210.846866][ T6106] vfs_get_tree+0x90/0x274 [ 210.847524][ T6106] do_new_mount+0x228/0x810 [ 210.848254][ T6106] path_mount+0x5bc/0x1008 [ 210.848896][ T6106] __arm64_sys_mount+0x514/0x5f0 [ 210.849615][ T6106] invoke_syscall+0x98/0x2b0 [ 210.850238][ T6106] el0_svc_common+0x138/0x258 [ 210.850902][ T6106] do_el0_svc+0x58/0x13c [ 210.851544][ T6106] el0_svc+0x78/0x1d0 [ 210.852199][ T6106] el0t_64_sync_handler+0xcc/0xe4 [ 210.852929][ T6106] el0t_64_sync+0x1a0/0x1a4 [ 210.855016][ T6106] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.857069][ T6106] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.993675][ T6108] loop1: detected capacity change from 0 to 32768 [ 211.001656][ T6108] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.002733][ T6108] CPU: 1 PID: 6108 Comm: syz.1.596 Not tainted syzkaller #0 [ 211.003806][ T6108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 211.005493][ T6108] Call trace: [ 211.006031][ T6108] dump_backtrace+0x0/0x458 [ 211.006707][ T6108] show_stack+0x2c/0x3c [ 211.007344][ T6108] __dump_stack+0x30/0x40 [ 211.008052][ T6108] dump_stack_lvl+0xf4/0x15c [ 211.008710][ T6108] dump_stack+0x1c/0x5c [ 211.009329][ T6108] sysfs_create_dir_ns+0x244/0x264 [ 211.010076][ T6108] kobject_add_internal+0x5ac/0xc3c [ 211.010873][ T6108] kobject_init_and_add+0x124/0x190 [ 211.011584][ T6108] gfs2_sys_fs_add+0x200/0x41c [ 211.012303][ T6108] gfs2_fill_super+0xddc/0x1a18 [ 211.013030][ T6108] get_tree_bdev+0x358/0x544 [ 211.013710][ T6108] gfs2_get_tree+0x54/0x1b4 [ 211.014388][ T6108] vfs_get_tree+0x90/0x274 [ 211.015040][ T6108] do_new_mount+0x228/0x810 [ 211.015737][ T6108] path_mount+0x5bc/0x1008 [ 211.016439][ T6108] __arm64_sys_mount+0x514/0x5f0 [ 211.017212][ T6108] invoke_syscall+0x98/0x2b0 [ 211.017928][ T6108] el0_svc_common+0x138/0x258 [ 211.018668][ T6108] do_el0_svc+0x58/0x13c [ 211.019342][ T6108] el0_svc+0x78/0x1d0 [ 211.019990][ T6108] el0t_64_sync_handler+0xcc/0xe4 [ 211.020838][ T6108] el0t_64_sync+0x1a0/0x1a4 [ 211.023210][ T6108] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.025272][ T6108] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.157124][ T6110] loop1: detected capacity change from 0 to 32768 [ 211.253305][ T6110] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.254618][ T6110] CPU: 1 PID: 6110 Comm: syz.1.597 Not tainted syzkaller #0 [ 211.255737][ T6110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 211.257308][ T6110] Call trace: [ 211.257812][ T6110] dump_backtrace+0x0/0x458 [ 211.258520][ T6110] show_stack+0x2c/0x3c [ 211.259184][ T6110] __dump_stack+0x30/0x40 [ 211.259842][ T6110] dump_stack_lvl+0xf4/0x15c [ 211.260520][ T6110] dump_stack+0x1c/0x5c [ 211.261146][ T6110] sysfs_create_dir_ns+0x244/0x264 [ 211.261941][ T6110] kobject_add_internal+0x5ac/0xc3c [ 211.262661][ T6110] kobject_init_and_add+0x124/0x190 [ 211.263460][ T6110] gfs2_sys_fs_add+0x200/0x41c [ 211.264249][ T6110] gfs2_fill_super+0xddc/0x1a18 [ 211.265031][ T6110] get_tree_bdev+0x358/0x544 [ 211.265815][ T6110] gfs2_get_tree+0x54/0x1b4 [ 211.266552][ T6110] vfs_get_tree+0x90/0x274 [ 211.267257][ T6110] do_new_mount+0x228/0x810 [ 211.268032][ T6110] path_mount+0x5bc/0x1008 [ 211.268729][ T6110] __arm64_sys_mount+0x514/0x5f0 [ 211.269483][ T6110] invoke_syscall+0x98/0x2b0 [ 211.270219][ T6110] el0_svc_common+0x138/0x258 [ 211.270969][ T6110] do_el0_svc+0x58/0x13c [ 211.271588][ T6110] el0_svc+0x78/0x1d0 [ 211.272183][ T6110] el0t_64_sync_handler+0xcc/0xe4 [ 211.272979][ T6110] el0t_64_sync+0x1a0/0x1a4 [ 211.275202][ T6110] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.277630][ T6110] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.409501][ T6112] loop1: detected capacity change from 0 to 32768 [ 211.459087][ T6112] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.460299][ T6112] CPU: 1 PID: 6112 Comm: syz.1.598 Not tainted syzkaller #0 [ 211.461402][ T6112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 211.462980][ T6112] Call trace: [ 211.463503][ T6112] dump_backtrace+0x0/0x458 [ 211.464289][ T6112] show_stack+0x2c/0x3c [ 211.464949][ T6112] __dump_stack+0x30/0x40 [ 211.465698][ T6112] dump_stack_lvl+0xf4/0x15c [ 211.466435][ T6112] dump_stack+0x1c/0x5c [ 211.467137][ T6112] sysfs_create_dir_ns+0x244/0x264 [ 211.467978][ T6112] kobject_add_internal+0x5ac/0xc3c [ 211.468823][ T6112] kobject_init_and_add+0x124/0x190 [ 211.469670][ T6112] gfs2_sys_fs_add+0x200/0x41c [ 211.470402][ T6112] gfs2_fill_super+0xddc/0x1a18 [ 211.471156][ T6112] get_tree_bdev+0x358/0x544 [ 211.471876][ T6112] gfs2_get_tree+0x54/0x1b4 [ 211.472629][ T6112] vfs_get_tree+0x90/0x274 [ 211.473302][ T6112] do_new_mount+0x228/0x810 [ 211.474031][ T6112] path_mount+0x5bc/0x1008 [ 211.474736][ T6112] __arm64_sys_mount+0x514/0x5f0 [ 211.475465][ T6112] invoke_syscall+0x98/0x2b0 [ 211.476154][ T6112] el0_svc_common+0x138/0x258 [ 211.476903][ T6112] do_el0_svc+0x58/0x13c [ 211.477610][ T6112] el0_svc+0x78/0x1d0 [ 211.478207][ T6112] el0t_64_sync_handler+0xcc/0xe4 [ 211.479032][ T6112] el0t_64_sync+0x1a0/0x1a4 [ 211.481550][ T6112] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.483576][ T6112] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.618258][ T6114] loop1: detected capacity change from 0 to 32768 [ 211.659962][ T6114] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.661148][ T6114] CPU: 1 PID: 6114 Comm: syz.1.599 Not tainted syzkaller #0 [ 211.662324][ T6114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 211.664070][ T6114] Call trace: [ 211.664623][ T6114] dump_backtrace+0x0/0x458 [ 211.665350][ T6114] show_stack+0x2c/0x3c [ 211.666057][ T6114] __dump_stack+0x30/0x40 [ 211.666792][ T6114] dump_stack_lvl+0xf4/0x15c [ 211.667549][ T6114] dump_stack+0x1c/0x5c [ 211.668248][ T6114] sysfs_create_dir_ns+0x244/0x264 [ 211.669076][ T6114] kobject_add_internal+0x5ac/0xc3c [ 211.669925][ T6114] kobject_init_and_add+0x124/0x190 [ 211.670793][ T6114] gfs2_sys_fs_add+0x200/0x41c [ 211.671554][ T6114] gfs2_fill_super+0xddc/0x1a18 [ 211.672315][ T6114] get_tree_bdev+0x358/0x544 [ 211.673044][ T6114] gfs2_get_tree+0x54/0x1b4 [ 211.673760][ T6114] vfs_get_tree+0x90/0x274 [ 211.674452][ T6114] do_new_mount+0x228/0x810 [ 211.675153][ T6114] path_mount+0x5bc/0x1008 [ 211.675875][ T6114] __arm64_sys_mount+0x514/0x5f0 [ 211.676635][ T6114] invoke_syscall+0x98/0x2b0 [ 211.677427][ T6114] el0_svc_common+0x138/0x258 [ 211.678266][ T6114] do_el0_svc+0x58/0x13c [ 211.678997][ T6114] el0_svc+0x78/0x1d0 [ 211.679679][ T6114] el0t_64_sync_handler+0xcc/0xe4 [ 211.680557][ T6114] el0t_64_sync+0x1a0/0x1a4 [ 211.682729][ T6114] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.685282][ T6114] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.896222][ T6116] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.897458][ T6116] CPU: 1 PID: 6116 Comm: syz.1.600 Not tainted syzkaller #0 [ 211.898590][ T6116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 211.900166][ T6116] Call trace: [ 211.900676][ T6116] dump_backtrace+0x0/0x458 [ 211.901373][ T6116] show_stack+0x2c/0x3c [ 211.902040][ T6116] __dump_stack+0x30/0x40 [ 211.902737][ T6116] dump_stack_lvl+0xf4/0x15c [ 211.903450][ T6116] dump_stack+0x1c/0x5c [ 211.904171][ T6116] sysfs_create_dir_ns+0x244/0x264 [ 211.905034][ T6116] kobject_add_internal+0x5ac/0xc3c [ 211.905908][ T6116] kobject_init_and_add+0x124/0x190 [ 211.906738][ T6116] gfs2_sys_fs_add+0x200/0x41c [ 211.907528][ T6116] gfs2_fill_super+0xddc/0x1a18 [ 211.908312][ T6116] get_tree_bdev+0x358/0x544 [ 211.909057][ T6116] gfs2_get_tree+0x54/0x1b4 [ 211.909816][ T6116] vfs_get_tree+0x90/0x274 [ 211.910512][ T6116] do_new_mount+0x228/0x810 [ 211.911234][ T6116] path_mount+0x5bc/0x1008 [ 211.911934][ T6116] __arm64_sys_mount+0x514/0x5f0 [ 211.912720][ T6116] invoke_syscall+0x98/0x2b0 [ 211.913429][ T6116] el0_svc_common+0x138/0x258 [ 211.914179][ T6116] do_el0_svc+0x58/0x13c [ 211.914845][ T6116] el0_svc+0x78/0x1d0 [ 211.915475][ T6116] el0t_64_sync_handler+0xcc/0xe4 [ 211.916233][ T6116] el0t_64_sync+0x1a0/0x1a4 [ 211.918323][ T6116] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.920322][ T6116] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.210997][ T6118] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.212199][ T6118] CPU: 1 PID: 6118 Comm: syz.1.601 Not tainted syzkaller #0 [ 212.213312][ T6118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 212.214879][ T6118] Call trace: [ 212.215425][ T6118] dump_backtrace+0x0/0x458 [ 212.216150][ T6118] show_stack+0x2c/0x3c [ 212.216894][ T6118] __dump_stack+0x30/0x40 [ 212.217664][ T6118] dump_stack_lvl+0xf4/0x15c [ 212.218414][ T6118] dump_stack+0x1c/0x5c [ 212.219095][ T6118] sysfs_create_dir_ns+0x244/0x264 [ 212.219950][ T6118] kobject_add_internal+0x5ac/0xc3c [ 212.220841][ T6118] kobject_init_and_add+0x124/0x190 [ 212.221654][ T6118] gfs2_sys_fs_add+0x200/0x41c [ 212.222390][ T6118] gfs2_fill_super+0xddc/0x1a18 [ 212.223204][ T6118] get_tree_bdev+0x358/0x544 [ 212.223953][ T6118] gfs2_get_tree+0x54/0x1b4 [ 212.224699][ T6118] vfs_get_tree+0x90/0x274 [ 212.225474][ T6118] do_new_mount+0x228/0x810 [ 212.226213][ T6118] path_mount+0x5bc/0x1008 [ 212.226933][ T6118] __arm64_sys_mount+0x514/0x5f0 [ 212.227729][ T6118] invoke_syscall+0x98/0x2b0 [ 212.228507][ T6118] el0_svc_common+0x138/0x258 [ 212.229269][ T6118] do_el0_svc+0x58/0x13c [ 212.229949][ T6118] el0_svc+0x78/0x1d0 [ 212.230578][ T6118] el0t_64_sync_handler+0xcc/0xe4 [ 212.231384][ T6118] el0t_64_sync+0x1a0/0x1a4 [ 212.233762][ T6118] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.235900][ T6118] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.405346][ T6120] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.406609][ T6120] CPU: 1 PID: 6120 Comm: syz.1.602 Not tainted syzkaller #0 [ 212.407723][ T6120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 212.409429][ T6120] Call trace: [ 212.409897][ T6120] dump_backtrace+0x0/0x458 [ 212.410619][ T6120] show_stack+0x2c/0x3c [ 212.411259][ T6120] __dump_stack+0x30/0x40 [ 212.411968][ T6120] dump_stack_lvl+0xf4/0x15c [ 212.412721][ T6120] dump_stack+0x1c/0x5c [ 212.413364][ T6120] sysfs_create_dir_ns+0x244/0x264 [ 212.414147][ T6120] kobject_add_internal+0x5ac/0xc3c [ 212.414964][ T6120] kobject_init_and_add+0x124/0x190 [ 212.415848][ T6120] gfs2_sys_fs_add+0x200/0x41c [ 212.416623][ T6120] gfs2_fill_super+0xddc/0x1a18 [ 212.417394][ T6120] get_tree_bdev+0x358/0x544 [ 212.418149][ T6120] gfs2_get_tree+0x54/0x1b4 [ 212.418961][ T6120] vfs_get_tree+0x90/0x274 [ 212.419694][ T6120] do_new_mount+0x228/0x810 [ 212.420402][ T6120] path_mount+0x5bc/0x1008 [ 212.421080][ T6120] __arm64_sys_mount+0x514/0x5f0 [ 212.421820][ T6120] invoke_syscall+0x98/0x2b0 [ 212.422576][ T6120] el0_svc_common+0x138/0x258 [ 212.423367][ T6120] do_el0_svc+0x58/0x13c [ 212.424112][ T6120] el0_svc+0x78/0x1d0 [ 212.424763][ T6120] el0t_64_sync_handler+0xcc/0xe4 [ 212.425653][ T6120] el0t_64_sync+0x1a0/0x1a4 [ 212.428765][ T6120] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.430914][ T6120] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.580925][ T6122] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.582155][ T6122] CPU: 1 PID: 6122 Comm: syz.1.603 Not tainted syzkaller #0 [ 212.583207][ T6122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 212.584783][ T6122] Call trace: [ 212.585336][ T6122] dump_backtrace+0x0/0x458 [ 212.586127][ T6122] show_stack+0x2c/0x3c [ 212.586785][ T6122] __dump_stack+0x30/0x40 [ 212.587460][ T6122] dump_stack_lvl+0xf4/0x15c [ 212.588223][ T6122] dump_stack+0x1c/0x5c [ 212.588972][ T6122] sysfs_create_dir_ns+0x244/0x264 [ 212.589855][ T6122] kobject_add_internal+0x5ac/0xc3c [ 212.590622][ T6122] kobject_init_and_add+0x124/0x190 [ 212.591511][ T6122] gfs2_sys_fs_add+0x200/0x41c [ 212.592318][ T6122] gfs2_fill_super+0xddc/0x1a18 [ 212.593072][ T6122] get_tree_bdev+0x358/0x544 [ 212.593779][ T6122] gfs2_get_tree+0x54/0x1b4 [ 212.594505][ T6122] vfs_get_tree+0x90/0x274 [ 212.595219][ T6122] do_new_mount+0x228/0x810 [ 212.595973][ T6122] path_mount+0x5bc/0x1008 [ 212.596709][ T6122] __arm64_sys_mount+0x514/0x5f0 [ 212.597541][ T6122] invoke_syscall+0x98/0x2b0 [ 212.598264][ T6122] el0_svc_common+0x138/0x258 [ 212.599000][ T6122] do_el0_svc+0x58/0x13c [ 212.599663][ T6122] el0_svc+0x78/0x1d0 [ 212.600302][ T6122] el0t_64_sync_handler+0xcc/0xe4 [ 212.601074][ T6122] el0t_64_sync+0x1a0/0x1a4 [ 212.603295][ T6122] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.605427][ T6122] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.834174][ T6124] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.835363][ T6124] CPU: 0 PID: 6124 Comm: syz.1.604 Not tainted syzkaller #0 [ 212.836486][ T6124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 212.838107][ T6124] Call trace: [ 212.838675][ T6124] dump_backtrace+0x0/0x458 [ 212.839385][ T6124] show_stack+0x2c/0x3c [ 212.840014][ T6124] __dump_stack+0x30/0x40 [ 212.840762][ T6124] dump_stack_lvl+0xf4/0x15c [ 212.841408][ T6124] dump_stack+0x1c/0x5c [ 212.842031][ T6124] sysfs_create_dir_ns+0x244/0x264 [ 212.842840][ T6124] kobject_add_internal+0x5ac/0xc3c [ 212.843739][ T6124] kobject_init_and_add+0x124/0x190 [ 212.844591][ T6124] gfs2_sys_fs_add+0x200/0x41c [ 212.845381][ T6124] gfs2_fill_super+0xddc/0x1a18 [ 212.846167][ T6124] get_tree_bdev+0x358/0x544 [ 212.846917][ T6124] gfs2_get_tree+0x54/0x1b4 [ 212.847656][ T6124] vfs_get_tree+0x90/0x274 [ 212.848380][ T6124] do_new_mount+0x228/0x810 [ 212.849061][ T6124] path_mount+0x5bc/0x1008 [ 212.849730][ T6124] __arm64_sys_mount+0x514/0x5f0 [ 212.850499][ T6124] invoke_syscall+0x98/0x2b0 [ 212.851253][ T6124] el0_svc_common+0x138/0x258 [ 212.851974][ T6124] do_el0_svc+0x58/0x13c [ 212.852656][ T6124] el0_svc+0x78/0x1d0 [ 212.853294][ T6124] el0t_64_sync_handler+0xcc/0xe4 [ 212.854082][ T6124] el0t_64_sync+0x1a0/0x1a4 [ 212.855593][ T6124] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.857625][ T6124] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.056785][ T6126] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.058019][ T6126] CPU: 1 PID: 6126 Comm: syz.1.605 Not tainted syzkaller #0 [ 213.059162][ T6126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 213.060721][ T6126] Call trace: [ 213.061243][ T6126] dump_backtrace+0x0/0x458 [ 213.061983][ T6126] show_stack+0x2c/0x3c [ 213.062713][ T6126] __dump_stack+0x30/0x40 [ 213.063406][ T6126] dump_stack_lvl+0xf4/0x15c [ 213.064157][ T6126] dump_stack+0x1c/0x5c [ 213.064848][ T6126] sysfs_create_dir_ns+0x244/0x264 [ 213.065679][ T6126] kobject_add_internal+0x5ac/0xc3c [ 213.066538][ T6126] kobject_init_and_add+0x124/0x190 [ 213.067441][ T6126] gfs2_sys_fs_add+0x200/0x41c [ 213.068246][ T6126] gfs2_fill_super+0xddc/0x1a18 [ 213.069045][ T6126] get_tree_bdev+0x358/0x544 [ 213.069763][ T6126] gfs2_get_tree+0x54/0x1b4 [ 213.070559][ T6126] vfs_get_tree+0x90/0x274 [ 213.071343][ T6126] do_new_mount+0x228/0x810 [ 213.072170][ T6126] path_mount+0x5bc/0x1008 [ 213.072942][ T6126] __arm64_sys_mount+0x514/0x5f0 [ 213.073774][ T6126] invoke_syscall+0x98/0x2b0 [ 213.074533][ T6126] el0_svc_common+0x138/0x258 [ 213.075307][ T6126] do_el0_svc+0x58/0x13c [ 213.075982][ T6126] el0_svc+0x78/0x1d0 [ 213.076656][ T6126] el0t_64_sync_handler+0xcc/0xe4 [ 213.077517][ T6126] el0t_64_sync+0x1a0/0x1a4 [ 213.079966][ T6126] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.081956][ T6126] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.228487][ T6128] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.229745][ T6128] CPU: 1 PID: 6128 Comm: syz.1.606 Not tainted syzkaller #0 [ 213.230905][ T6128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 213.232557][ T6128] Call trace: [ 213.233099][ T6128] dump_backtrace+0x0/0x458 [ 213.233852][ T6128] show_stack+0x2c/0x3c [ 213.234529][ T6128] __dump_stack+0x30/0x40 [ 213.235195][ T6128] dump_stack_lvl+0xf4/0x15c [ 213.235964][ T6128] dump_stack+0x1c/0x5c [ 213.236633][ T6128] sysfs_create_dir_ns+0x244/0x264 [ 213.237458][ T6128] kobject_add_internal+0x5ac/0xc3c [ 213.238282][ T6128] kobject_init_and_add+0x124/0x190 [ 213.239096][ T6128] gfs2_sys_fs_add+0x200/0x41c [ 213.239896][ T6128] gfs2_fill_super+0xddc/0x1a18 [ 213.240646][ T6128] get_tree_bdev+0x358/0x544 [ 213.241351][ T6128] gfs2_get_tree+0x54/0x1b4 [ 213.242028][ T6128] vfs_get_tree+0x90/0x274 [ 213.242701][ T6128] do_new_mount+0x228/0x810 [ 213.243355][ T6128] path_mount+0x5bc/0x1008 [ 213.244032][ T6128] __arm64_sys_mount+0x514/0x5f0 [ 213.244820][ T6128] invoke_syscall+0x98/0x2b0 [ 213.245555][ T6128] el0_svc_common+0x138/0x258 [ 213.246296][ T6128] do_el0_svc+0x58/0x13c [ 213.246941][ T6128] el0_svc+0x78/0x1d0 [ 213.247549][ T6128] el0t_64_sync_handler+0xcc/0xe4 [ 213.248301][ T6128] el0t_64_sync+0x1a0/0x1a4 [ 213.250466][ T6128] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.252550][ T6128] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.399170][ T6130] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.400389][ T6130] CPU: 1 PID: 6130 Comm: syz.1.607 Not tainted syzkaller #0 [ 213.401557][ T6130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 213.403151][ T6130] Call trace: [ 213.403631][ T6130] dump_backtrace+0x0/0x458 [ 213.404353][ T6130] show_stack+0x2c/0x3c [ 213.405016][ T6130] __dump_stack+0x30/0x40 [ 213.405698][ T6130] dump_stack_lvl+0xf4/0x15c [ 213.406470][ T6130] dump_stack+0x1c/0x5c [ 213.407109][ T6130] sysfs_create_dir_ns+0x244/0x264 [ 213.407897][ T6130] kobject_add_internal+0x5ac/0xc3c [ 213.408756][ T6130] kobject_init_and_add+0x124/0x190 [ 213.409563][ T6130] gfs2_sys_fs_add+0x200/0x41c [ 213.410360][ T6130] gfs2_fill_super+0xddc/0x1a18 [ 213.411172][ T6130] get_tree_bdev+0x358/0x544 [ 213.411987][ T6130] gfs2_get_tree+0x54/0x1b4 [ 213.412715][ T6130] vfs_get_tree+0x90/0x274 [ 213.413479][ T6130] do_new_mount+0x228/0x810 [ 213.414224][ T6130] path_mount+0x5bc/0x1008 [ 213.414934][ T6130] __arm64_sys_mount+0x514/0x5f0 [ 213.415775][ T6130] invoke_syscall+0x98/0x2b0 [ 213.416538][ T6130] el0_svc_common+0x138/0x258 [ 213.417316][ T6130] do_el0_svc+0x58/0x13c [ 213.418003][ T6130] el0_svc+0x78/0x1d0 [ 213.418653][ T6130] el0t_64_sync_handler+0xcc/0xe4 [ 213.419542][ T6130] el0t_64_sync+0x1a0/0x1a4 [ 213.421799][ T6130] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.423895][ T6130] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.566202][ T6132] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.567413][ T6132] CPU: 1 PID: 6132 Comm: syz.1.608 Not tainted syzkaller #0 [ 213.568559][ T6132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 213.570077][ T6132] Call trace: [ 213.570574][ T6132] dump_backtrace+0x0/0x458 [ 213.571310][ T6132] show_stack+0x2c/0x3c [ 213.571974][ T6132] __dump_stack+0x30/0x40 [ 213.572649][ T6132] dump_stack_lvl+0xf4/0x15c [ 213.573346][ T6132] dump_stack+0x1c/0x5c [ 213.573981][ T6132] sysfs_create_dir_ns+0x244/0x264 [ 213.574807][ T6132] kobject_add_internal+0x5ac/0xc3c [ 213.575606][ T6132] kobject_init_and_add+0x124/0x190 [ 213.576437][ T6132] gfs2_sys_fs_add+0x200/0x41c [ 213.577197][ T6132] gfs2_fill_super+0xddc/0x1a18 [ 213.577936][ T6132] get_tree_bdev+0x358/0x544 [ 213.578654][ T6132] gfs2_get_tree+0x54/0x1b4 [ 213.579357][ T6132] vfs_get_tree+0x90/0x274 [ 213.580062][ T6132] do_new_mount+0x228/0x810 [ 213.580796][ T6132] path_mount+0x5bc/0x1008 [ 213.581524][ T6132] __arm64_sys_mount+0x514/0x5f0 [ 213.582291][ T6132] invoke_syscall+0x98/0x2b0 [ 213.583014][ T6132] el0_svc_common+0x138/0x258 [ 213.583790][ T6132] do_el0_svc+0x58/0x13c [ 213.584494][ T6132] el0_svc+0x78/0x1d0 [ 213.585141][ T6132] el0t_64_sync_handler+0xcc/0xe4 [ 213.585928][ T6132] el0t_64_sync+0x1a0/0x1a4 [ 213.588200][ T6132] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.590190][ T6132] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.733958][ T6134] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.735293][ T6134] CPU: 0 PID: 6134 Comm: syz.1.609 Not tainted syzkaller #0 [ 213.736421][ T6134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 213.737930][ T6134] Call trace: [ 213.738478][ T6134] dump_backtrace+0x0/0x458 [ 213.739195][ T6134] show_stack+0x2c/0x3c [ 213.739838][ T6134] __dump_stack+0x30/0x40 [ 213.740508][ T6134] dump_stack_lvl+0xf4/0x15c [ 213.741282][ T6134] dump_stack+0x1c/0x5c [ 213.741930][ T6134] sysfs_create_dir_ns+0x244/0x264 [ 213.742761][ T6134] kobject_add_internal+0x5ac/0xc3c [ 213.743613][ T6134] kobject_init_and_add+0x124/0x190 [ 213.744399][ T6134] gfs2_sys_fs_add+0x200/0x41c [ 213.745145][ T6134] gfs2_fill_super+0xddc/0x1a18 [ 213.745875][ T6134] get_tree_bdev+0x358/0x544 [ 213.746630][ T6134] gfs2_get_tree+0x54/0x1b4 [ 213.747308][ T6134] vfs_get_tree+0x90/0x274 [ 213.747973][ T6134] do_new_mount+0x228/0x810 [ 213.748704][ T6134] path_mount+0x5bc/0x1008 [ 213.749444][ T6134] __arm64_sys_mount+0x514/0x5f0 [ 213.750240][ T6134] invoke_syscall+0x98/0x2b0 [ 213.750990][ T6134] el0_svc_common+0x138/0x258 [ 213.751756][ T6134] do_el0_svc+0x58/0x13c [ 213.752443][ T6134] el0_svc+0x78/0x1d0 [ 213.753081][ T6134] el0t_64_sync_handler+0xcc/0xe4 [ 213.753935][ T6134] el0t_64_sync+0x1a0/0x1a4 [ 213.754854][ T6134] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.756828][ T6134] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.899311][ T6136] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.900431][ T6136] CPU: 0 PID: 6136 Comm: syz.1.610 Not tainted syzkaller #0 [ 213.901530][ T6136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 213.902890][ T6136] Call trace: [ 213.903421][ T6136] dump_backtrace+0x0/0x458 [ 213.904123][ T6136] show_stack+0x2c/0x3c [ 213.904790][ T6136] __dump_stack+0x30/0x40 [ 213.905493][ T6136] dump_stack_lvl+0xf4/0x15c [ 213.906207][ T6136] dump_stack+0x1c/0x5c [ 213.906928][ T6136] sysfs_create_dir_ns+0x244/0x264 [ 213.907816][ T6136] kobject_add_internal+0x5ac/0xc3c [ 213.908721][ T6136] kobject_init_and_add+0x124/0x190 [ 213.909566][ T6136] gfs2_sys_fs_add+0x200/0x41c [ 213.910339][ T6136] gfs2_fill_super+0xddc/0x1a18 [ 213.911139][ T6136] get_tree_bdev+0x358/0x544 [ 213.911900][ T6136] gfs2_get_tree+0x54/0x1b4 [ 213.912662][ T6136] vfs_get_tree+0x90/0x274 [ 213.913400][ T6136] do_new_mount+0x228/0x810 [ 213.914126][ T6136] path_mount+0x5bc/0x1008 [ 213.914894][ T6136] __arm64_sys_mount+0x514/0x5f0 [ 213.915638][ T6136] invoke_syscall+0x98/0x2b0 [ 213.916352][ T6136] el0_svc_common+0x138/0x258 [ 213.917118][ T6136] do_el0_svc+0x58/0x13c [ 213.917789][ T6136] el0_svc+0x78/0x1d0 [ 213.918447][ T6136] el0t_64_sync_handler+0xcc/0xe4 [ 213.919315][ T6136] el0t_64_sync+0x1a0/0x1a4 [ 213.921472][ T6136] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.923457][ T6136] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.109020][ T6138] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.110339][ T6138] CPU: 0 PID: 6138 Comm: syz.1.611 Not tainted syzkaller #0 [ 214.111491][ T6138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 214.113118][ T6138] Call trace: [ 214.113645][ T6138] dump_backtrace+0x0/0x458 [ 214.114390][ T6138] show_stack+0x2c/0x3c [ 214.115088][ T6138] __dump_stack+0x30/0x40 [ 214.115766][ T6138] dump_stack_lvl+0xf4/0x15c [ 214.116526][ T6138] dump_stack+0x1c/0x5c [ 214.117181][ T6138] sysfs_create_dir_ns+0x244/0x264 [ 214.118028][ T6138] kobject_add_internal+0x5ac/0xc3c [ 214.118866][ T6138] kobject_init_and_add+0x124/0x190 [ 214.119754][ T6138] gfs2_sys_fs_add+0x200/0x41c [ 214.120545][ T6138] gfs2_fill_super+0xddc/0x1a18 [ 214.121318][ T6138] get_tree_bdev+0x358/0x544 [ 214.122098][ T6138] gfs2_get_tree+0x54/0x1b4 [ 214.122837][ T6138] vfs_get_tree+0x90/0x274 [ 214.123540][ T6138] do_new_mount+0x228/0x810 [ 214.124280][ T6138] path_mount+0x5bc/0x1008 [ 214.124972][ T6138] __arm64_sys_mount+0x514/0x5f0 [ 214.125762][ T6138] invoke_syscall+0x98/0x2b0 [ 214.126434][ T6138] el0_svc_common+0x138/0x258 [ 214.127093][ T6138] do_el0_svc+0x58/0x13c [ 214.127730][ T6138] el0_svc+0x78/0x1d0 [ 214.128336][ T6138] el0t_64_sync_handler+0xcc/0xe4 [ 214.129095][ T6138] el0t_64_sync+0x1a0/0x1a4 [ 214.131200][ T6138] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.133163][ T6138] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:34 executed programs: 598 [ 214.317882][ T6140] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.322883][ T6140] CPU: 1 PID: 6140 Comm: syz.1.612 Not tainted syzkaller #0 [ 214.324086][ T6140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 214.325756][ T6140] Call trace: [ 214.326299][ T6140] dump_backtrace+0x0/0x458 [ 214.326969][ T6140] show_stack+0x2c/0x3c [ 214.327660][ T6140] __dump_stack+0x30/0x40 [ 214.328348][ T6140] dump_stack_lvl+0xf4/0x15c [ 214.329063][ T6140] dump_stack+0x1c/0x5c [ 214.329693][ T6140] sysfs_create_dir_ns+0x244/0x264 [ 214.330502][ T6140] kobject_add_internal+0x5ac/0xc3c [ 214.331399][ T6140] kobject_init_and_add+0x124/0x190 [ 214.332309][ T6140] gfs2_sys_fs_add+0x200/0x41c [ 214.333120][ T6140] gfs2_fill_super+0xddc/0x1a18 [ 214.333901][ T6140] get_tree_bdev+0x358/0x544 [ 214.334620][ T6140] gfs2_get_tree+0x54/0x1b4 [ 214.335283][ T6140] vfs_get_tree+0x90/0x274 [ 214.335960][ T6140] do_new_mount+0x228/0x810 [ 214.336628][ T6140] path_mount+0x5bc/0x1008 [ 214.337312][ T6140] __arm64_sys_mount+0x514/0x5f0 [ 214.338091][ T6140] invoke_syscall+0x98/0x2b0 [ 214.338790][ T6140] el0_svc_common+0x138/0x258 [ 214.339587][ T6140] do_el0_svc+0x58/0x13c [ 214.340322][ T6140] el0_svc+0x78/0x1d0 [ 214.341031][ T6140] el0t_64_sync_handler+0xcc/0xe4 [ 214.341873][ T6140] el0t_64_sync+0x1a0/0x1a4 [ 214.343760][ T6140] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.345839][ T6140] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.529761][ T6142] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.531096][ T6142] CPU: 1 PID: 6142 Comm: syz.1.613 Not tainted syzkaller #0 [ 214.532251][ T6142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 214.533741][ T6142] Call trace: [ 214.534229][ T6142] dump_backtrace+0x0/0x458 [ 214.534959][ T6142] show_stack+0x2c/0x3c [ 214.535621][ T6142] __dump_stack+0x30/0x40 [ 214.536262][ T6142] dump_stack_lvl+0xf4/0x15c [ 214.536933][ T6142] dump_stack+0x1c/0x5c [ 214.537546][ T6142] sysfs_create_dir_ns+0x244/0x264 [ 214.538283][ T6142] kobject_add_internal+0x5ac/0xc3c [ 214.539096][ T6142] kobject_init_and_add+0x124/0x190 [ 214.539859][ T6142] gfs2_sys_fs_add+0x200/0x41c [ 214.540594][ T6142] gfs2_fill_super+0xddc/0x1a18 [ 214.541422][ T6142] get_tree_bdev+0x358/0x544 [ 214.542204][ T6142] gfs2_get_tree+0x54/0x1b4 [ 214.542997][ T6142] vfs_get_tree+0x90/0x274 [ 214.543725][ T6142] do_new_mount+0x228/0x810 [ 214.544466][ T6142] path_mount+0x5bc/0x1008 [ 214.545165][ T6142] __arm64_sys_mount+0x514/0x5f0 [ 214.545956][ T6142] invoke_syscall+0x98/0x2b0 [ 214.546729][ T6142] el0_svc_common+0x138/0x258 [ 214.547488][ T6142] do_el0_svc+0x58/0x13c [ 214.548158][ T6142] el0_svc+0x78/0x1d0 [ 214.548747][ T6142] el0t_64_sync_handler+0xcc/0xe4 [ 214.549480][ T6142] el0t_64_sync+0x1a0/0x1a4 [ 214.551675][ T6142] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.554162][ T6142] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.688092][ T6144] set_capacity_and_notify: 14 callbacks suppressed [ 214.688102][ T6144] loop1: detected capacity change from 0 to 32768 [ 214.697145][ T6144] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.698250][ T6144] CPU: 0 PID: 6144 Comm: syz.1.614 Not tainted syzkaller #0 [ 214.699396][ T6144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 214.701068][ T6144] Call trace: [ 214.701597][ T6144] dump_backtrace+0x0/0x458 [ 214.702332][ T6144] show_stack+0x2c/0x3c [ 214.702965][ T6144] __dump_stack+0x30/0x40 [ 214.703609][ T6144] dump_stack_lvl+0xf4/0x15c [ 214.704325][ T6144] dump_stack+0x1c/0x5c [ 214.705022][ T6144] sysfs_create_dir_ns+0x244/0x264 [ 214.705864][ T6144] kobject_add_internal+0x5ac/0xc3c [ 214.706697][ T6144] kobject_init_and_add+0x124/0x190 [ 214.707494][ T6144] gfs2_sys_fs_add+0x200/0x41c [ 214.708223][ T6144] gfs2_fill_super+0xddc/0x1a18 [ 214.708948][ T6144] get_tree_bdev+0x358/0x544 [ 214.709651][ T6144] gfs2_get_tree+0x54/0x1b4 [ 214.710414][ T6144] vfs_get_tree+0x90/0x274 [ 214.711159][ T6144] do_new_mount+0x228/0x810 [ 214.711868][ T6144] path_mount+0x5bc/0x1008 [ 214.712549][ T6144] __arm64_sys_mount+0x514/0x5f0 [ 214.713364][ T6144] invoke_syscall+0x98/0x2b0 [ 214.714074][ T6144] el0_svc_common+0x138/0x258 [ 214.714876][ T6144] do_el0_svc+0x58/0x13c [ 214.715553][ T6144] el0_svc+0x78/0x1d0 [ 214.716186][ T6144] el0t_64_sync_handler+0xcc/0xe4 [ 214.717000][ T6144] el0t_64_sync+0x1a0/0x1a4 [ 214.717821][ T6144] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.719915][ T6144] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.859021][ T6146] loop1: detected capacity change from 0 to 32768 [ 214.867503][ T6146] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.868672][ T6146] CPU: 1 PID: 6146 Comm: syz.1.615 Not tainted syzkaller #0 [ 214.869858][ T6146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 214.871638][ T6146] Call trace: [ 214.872175][ T6146] dump_backtrace+0x0/0x458 [ 214.872948][ T6146] show_stack+0x2c/0x3c [ 214.873623][ T6146] __dump_stack+0x30/0x40 [ 214.874334][ T6146] dump_stack_lvl+0xf4/0x15c [ 214.875096][ T6146] dump_stack+0x1c/0x5c [ 214.875818][ T6146] sysfs_create_dir_ns+0x244/0x264 [ 214.876660][ T6146] kobject_add_internal+0x5ac/0xc3c [ 214.877433][ T6146] kobject_init_and_add+0x124/0x190 [ 214.878243][ T6146] gfs2_sys_fs_add+0x200/0x41c [ 214.879015][ T6146] gfs2_fill_super+0xddc/0x1a18 [ 214.879809][ T6146] get_tree_bdev+0x358/0x544 [ 214.880575][ T6146] gfs2_get_tree+0x54/0x1b4 [ 214.881302][ T6146] vfs_get_tree+0x90/0x274 [ 214.881982][ T6146] do_new_mount+0x228/0x810 [ 214.882644][ T6146] path_mount+0x5bc/0x1008 [ 214.883311][ T6146] __arm64_sys_mount+0x514/0x5f0 [ 214.884091][ T6146] invoke_syscall+0x98/0x2b0 [ 214.884858][ T6146] el0_svc_common+0x138/0x258 [ 214.885612][ T6146] do_el0_svc+0x58/0x13c [ 214.886316][ T6146] el0_svc+0x78/0x1d0 [ 214.886910][ T6146] el0t_64_sync_handler+0xcc/0xe4 [ 214.887710][ T6146] el0t_64_sync+0x1a0/0x1a4 [ 214.888477][ T6146] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.890517][ T6146] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.027717][ T6148] loop1: detected capacity change from 0 to 32768 [ 215.035665][ T6148] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.036875][ T6148] CPU: 1 PID: 6148 Comm: syz.1.616 Not tainted syzkaller #0 [ 215.037980][ T6148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 215.039573][ T6148] Call trace: [ 215.040060][ T6148] dump_backtrace+0x0/0x458 [ 215.040763][ T6148] show_stack+0x2c/0x3c [ 215.041456][ T6148] __dump_stack+0x30/0x40 [ 215.042139][ T6148] dump_stack_lvl+0xf4/0x15c [ 215.042893][ T6148] dump_stack+0x1c/0x5c [ 215.043524][ T6148] sysfs_create_dir_ns+0x244/0x264 [ 215.044328][ T6148] kobject_add_internal+0x5ac/0xc3c [ 215.045178][ T6148] kobject_init_and_add+0x124/0x190 [ 215.046054][ T6148] gfs2_sys_fs_add+0x200/0x41c [ 215.046878][ T6148] gfs2_fill_super+0xddc/0x1a18 [ 215.047753][ T6148] get_tree_bdev+0x358/0x544 [ 215.048516][ T6148] gfs2_get_tree+0x54/0x1b4 [ 215.049270][ T6148] vfs_get_tree+0x90/0x274 [ 215.050026][ T6148] do_new_mount+0x228/0x810 [ 215.050797][ T6148] path_mount+0x5bc/0x1008 [ 215.051563][ T6148] __arm64_sys_mount+0x514/0x5f0 [ 215.052401][ T6148] invoke_syscall+0x98/0x2b0 [ 215.053189][ T6148] el0_svc_common+0x138/0x258 [ 215.053975][ T6148] do_el0_svc+0x58/0x13c [ 215.054599][ T6148] el0_svc+0x78/0x1d0 [ 215.055199][ T6148] el0t_64_sync_handler+0xcc/0xe4 [ 215.055950][ T6148] el0t_64_sync+0x1a0/0x1a4 [ 215.056851][ T6148] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.058737][ T6148] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.064323][ T4162] Bluetooth: hci1: command 0x0406 tx timeout [ 215.202710][ T6150] loop1: detected capacity change from 0 to 32768 [ 215.207617][ T6150] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.208783][ T6150] CPU: 1 PID: 6150 Comm: syz.1.617 Not tainted syzkaller #0 [ 215.209973][ T6150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 215.211513][ T6150] Call trace: [ 215.212046][ T6150] dump_backtrace+0x0/0x458 [ 215.212735][ T6150] show_stack+0x2c/0x3c [ 215.213323][ T6150] __dump_stack+0x30/0x40 [ 215.214069][ T6150] dump_stack_lvl+0xf4/0x15c [ 215.214785][ T6150] dump_stack+0x1c/0x5c [ 215.215495][ T6150] sysfs_create_dir_ns+0x244/0x264 [ 215.216420][ T6150] kobject_add_internal+0x5ac/0xc3c [ 215.217322][ T6150] kobject_init_and_add+0x124/0x190 [ 215.218200][ T6150] gfs2_sys_fs_add+0x200/0x41c [ 215.218963][ T6150] gfs2_fill_super+0xddc/0x1a18 [ 215.219730][ T6150] get_tree_bdev+0x358/0x544 [ 215.220473][ T6150] gfs2_get_tree+0x54/0x1b4 [ 215.221180][ T6150] vfs_get_tree+0x90/0x274 [ 215.221897][ T6150] do_new_mount+0x228/0x810 [ 215.222576][ T6150] path_mount+0x5bc/0x1008 [ 215.223264][ T6150] __arm64_sys_mount+0x514/0x5f0 [ 215.224016][ T6150] invoke_syscall+0x98/0x2b0 [ 215.224770][ T6150] el0_svc_common+0x138/0x258 [ 215.225460][ T6150] do_el0_svc+0x58/0x13c [ 215.226187][ T6150] el0_svc+0x78/0x1d0 [ 215.226872][ T6150] el0t_64_sync_handler+0xcc/0xe4 [ 215.227725][ T6150] el0t_64_sync+0x1a0/0x1a4 [ 215.229934][ T6150] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.231858][ T6150] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.307873][ T6152] chnl_net:caif_netlink_parms(): no params data found [ 215.330010][ T6152] bridge0: port 1(bridge_slave_0) entered blocking state [ 215.331223][ T6152] bridge0: port 1(bridge_slave_0) entered disabled state [ 215.332773][ T6152] device bridge_slave_0 entered promiscuous mode [ 215.335331][ T6152] bridge0: port 2(bridge_slave_1) entered blocking state [ 215.336580][ T6152] bridge0: port 2(bridge_slave_1) entered disabled state [ 215.338125][ T6152] device bridge_slave_1 entered promiscuous mode [ 215.346284][ T6152] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 215.348797][ T6152] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 215.358437][ T6152] team0: Port device team_slave_0 added [ 215.360635][ T6152] team0: Port device team_slave_1 added [ 215.367807][ T6152] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 215.368939][ T6152] 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. [ 215.372949][ T6152] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 215.375466][ T6152] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 215.376541][ T6152] 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. [ 215.380757][ T6152] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 215.445687][ T6152] device hsr_slave_0 entered promiscuous mode [ 215.494352][ T6152] device hsr_slave_1 entered promiscuous mode [ 215.534157][ T6152] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 215.535317][ T6152] Cannot create hsr debugfs directory [ 215.577394][ T6152] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 216.007848][ T6152] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 216.053976][ T6152] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 216.148213][ T6152] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 216.364594][ T6152] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 216.398611][ T6152] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 216.445507][ T6152] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 216.489109][ T6152] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 216.562368][ T6152] 8021q: adding VLAN 0 to HW filter on device bond0 [ 216.567292][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 216.568832][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 216.571480][ T6152] 8021q: adding VLAN 0 to HW filter on device team0 [ 216.575030][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 216.576658][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 216.578104][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 216.579235][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 216.580590][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 216.583268][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 216.585601][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 216.587144][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 216.588311][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 216.596572][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 216.599566][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 216.602461][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 216.605014][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 216.606558][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 216.609427][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 216.611018][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 216.613851][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 216.616299][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 216.619362][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 216.620837][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 216.623493][ T6152] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 216.671409][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 216.672930][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 216.679014][ T6152] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 216.685538][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 216.687102][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 216.693373][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 216.695332][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 216.696975][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 216.698443][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 216.700759][ T6152] device veth0_vlan entered promiscuous mode [ 216.706141][ T6152] device veth1_vlan entered promiscuous mode [ 216.713341][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 216.717251][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 216.718708][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 216.720200][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 216.722772][ T6152] device veth0_macvtap entered promiscuous mode [ 216.725494][ T6152] device veth1_macvtap entered promiscuous mode [ 216.730523][ T6152] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 216.732162][ T6152] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 216.733619][ T6152] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 216.735652][ T6152] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 216.737591][ T6152] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 216.738791][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 216.740330][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 216.741748][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 216.743294][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 216.747673][ T6152] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 216.749351][ T6152] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 216.750937][ T6152] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 216.752618][ T6152] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 216.755456][ T6152] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 216.759743][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 216.761286][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 216.763618][ T6152] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 216.765114][ T6152] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 216.766354][ T6152] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 216.767631][ T6152] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 216.792251][ T326] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 216.793493][ T326] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 216.795455][ T4199] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 216.804005][ T326] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 216.805711][ T326] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 216.806967][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 216.962907][ T6164] loop1: detected capacity change from 0 to 32768 [ 216.970748][ T6164] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.971869][ T6164] CPU: 0 PID: 6164 Comm: syz.1.618 Not tainted syzkaller #0 [ 216.973077][ T6164] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 216.974811][ T6164] Call trace: [ 216.975336][ T6164] dump_backtrace+0x0/0x458 [ 216.976134][ T6164] show_stack+0x2c/0x3c [ 216.976843][ T6164] __dump_stack+0x30/0x40 [ 216.977539][ T6164] dump_stack_lvl+0xf4/0x15c [ 216.978292][ T6164] dump_stack+0x1c/0x5c [ 216.979023][ T6164] sysfs_create_dir_ns+0x244/0x264 [ 216.979903][ T6164] kobject_add_internal+0x5ac/0xc3c [ 216.980792][ T6164] kobject_init_and_add+0x124/0x190 [ 216.981647][ T6164] gfs2_sys_fs_add+0x200/0x41c [ 216.982364][ T6164] gfs2_fill_super+0xddc/0x1a18 [ 216.983124][ T6164] get_tree_bdev+0x358/0x544 [ 216.983882][ T6164] gfs2_get_tree+0x54/0x1b4 [ 216.984588][ T6164] vfs_get_tree+0x90/0x274 [ 216.985258][ T6164] do_new_mount+0x228/0x810 [ 216.985962][ T6164] path_mount+0x5bc/0x1008 [ 216.986631][ T6164] __arm64_sys_mount+0x514/0x5f0 [ 216.987443][ T6164] invoke_syscall+0x98/0x2b0 [ 216.988158][ T6164] el0_svc_common+0x138/0x258 [ 216.988887][ T6164] do_el0_svc+0x58/0x13c [ 216.989551][ T6164] el0_svc+0x78/0x1d0 [ 216.990180][ T6164] el0t_64_sync_handler+0xcc/0xe4 [ 216.990971][ T6164] el0t_64_sync+0x1a0/0x1a4 [ 216.991776][ T6164] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.993855][ T6164] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.182804][ T9] device hsr_slave_0 left promiscuous mode [ 217.216964][ T9] device hsr_slave_1 left promiscuous mode [ 217.230226][ T6166] loop1: detected capacity change from 0 to 32768 [ 217.281074][ T6166] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.282342][ T6166] CPU: 0 PID: 6166 Comm: syz.1.619 Not tainted syzkaller #0 [ 217.283417][ T6166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.285042][ T6166] Call trace: [ 217.285580][ T6166] dump_backtrace+0x0/0x458 [ 217.286251][ T6166] show_stack+0x2c/0x3c [ 217.286876][ T6166] __dump_stack+0x30/0x40 [ 217.287525][ T6166] dump_stack_lvl+0xf4/0x15c [ 217.288309][ T6166] dump_stack+0x1c/0x5c [ 217.288971][ T6166] sysfs_create_dir_ns+0x244/0x264 [ 217.289815][ T6166] kobject_add_internal+0x5ac/0xc3c [ 217.290685][ T6166] kobject_init_and_add+0x124/0x190 [ 217.291495][ T6166] gfs2_sys_fs_add+0x200/0x41c [ 217.292233][ T6166] gfs2_fill_super+0xddc/0x1a18 [ 217.293054][ T6166] get_tree_bdev+0x358/0x544 [ 217.293790][ T6166] gfs2_get_tree+0x54/0x1b4 [ 217.294491][ T6166] vfs_get_tree+0x90/0x274 [ 217.295156][ T6166] do_new_mount+0x228/0x810 [ 217.295850][ T6166] path_mount+0x5bc/0x1008 [ 217.296523][ T6166] __arm64_sys_mount+0x514/0x5f0 [ 217.297288][ T6166] invoke_syscall+0x98/0x2b0 [ 217.298058][ T6166] el0_svc_common+0x138/0x258 [ 217.298856][ T6166] do_el0_svc+0x58/0x13c [ 217.299587][ T6166] el0_svc+0x78/0x1d0 [ 217.300240][ T6166] el0t_64_sync_handler+0xcc/0xe4 [ 217.301077][ T6166] el0t_64_sync+0x1a0/0x1a4 [ 217.303362][ T6166] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.305498][ T7] Bluetooth: hci2: command 0x0409 tx timeout [ 217.306510][ T6166] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.344644][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 217.345861][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 217.347457][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 217.348628][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 217.350130][ T9] device bridge_slave_1 left promiscuous mode [ 217.351179][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 217.384738][ T9] device bridge_slave_0 left promiscuous mode [ 217.385825][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 217.440060][ T6168] loop1: detected capacity change from 0 to 32768 [ 217.524257][ T9] device veth1_macvtap left promiscuous mode [ 217.525301][ T9] device veth0_macvtap left promiscuous mode [ 217.526360][ T9] device veth1_vlan left promiscuous mode [ 217.527311][ T9] device veth0_vlan left promiscuous mode [ 217.534923][ T6168] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.536098][ T6168] CPU: 0 PID: 6168 Comm: syz.1.620 Not tainted syzkaller #0 [ 217.537235][ T6168] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.538831][ T6168] Call trace: [ 217.539351][ T6168] dump_backtrace+0x0/0x458 [ 217.540038][ T6168] show_stack+0x2c/0x3c [ 217.540682][ T6168] __dump_stack+0x30/0x40 [ 217.541316][ T6168] dump_stack_lvl+0xf4/0x15c [ 217.541975][ T6168] dump_stack+0x1c/0x5c [ 217.542589][ T6168] sysfs_create_dir_ns+0x244/0x264 [ 217.543371][ T6168] kobject_add_internal+0x5ac/0xc3c [ 217.544149][ T6168] kobject_init_and_add+0x124/0x190 [ 217.544949][ T6168] gfs2_sys_fs_add+0x200/0x41c [ 217.545696][ T6168] gfs2_fill_super+0xddc/0x1a18 [ 217.546496][ T6168] get_tree_bdev+0x358/0x544 [ 217.547244][ T6168] gfs2_get_tree+0x54/0x1b4 [ 217.547963][ T6168] vfs_get_tree+0x90/0x274 [ 217.548701][ T6168] do_new_mount+0x228/0x810 [ 217.549393][ T6168] path_mount+0x5bc/0x1008 [ 217.550133][ T6168] __arm64_sys_mount+0x514/0x5f0 [ 217.550920][ T6168] invoke_syscall+0x98/0x2b0 [ 217.551660][ T6168] el0_svc_common+0x138/0x258 [ 217.552414][ T6168] do_el0_svc+0x58/0x13c [ 217.553177][ T6168] el0_svc+0x78/0x1d0 [ 217.553829][ T6168] el0t_64_sync_handler+0xcc/0xe4 [ 217.554639][ T6168] el0t_64_sync+0x1a0/0x1a4 [ 217.573858][ T6168] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.576754][ T6168] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.653096][ T9] team0 (unregistering): Port device team_slave_1 removed [ 217.682826][ T9] team0 (unregistering): Port device team_slave_0 removed [ 217.689320][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 217.710201][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 217.829415][ T9] bond0 (unregistering): Released all slaves [ 217.834156][ T6170] loop1: detected capacity change from 0 to 32768 [ 217.841470][ T6170] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.842735][ T6170] CPU: 1 PID: 6170 Comm: syz.1.621 Not tainted syzkaller #0 [ 217.843898][ T6170] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.845512][ T6170] Call trace: [ 217.846021][ T6170] dump_backtrace+0x0/0x458 [ 217.846732][ T6170] show_stack+0x2c/0x3c [ 217.847382][ T6170] __dump_stack+0x30/0x40 [ 217.848080][ T6170] dump_stack_lvl+0xf4/0x15c [ 217.848813][ T6170] dump_stack+0x1c/0x5c [ 217.849485][ T6170] sysfs_create_dir_ns+0x244/0x264 [ 217.850293][ T6170] kobject_add_internal+0x5ac/0xc3c [ 217.851138][ T6170] kobject_init_and_add+0x124/0x190 [ 217.851969][ T6170] gfs2_sys_fs_add+0x200/0x41c [ 217.852760][ T6170] gfs2_fill_super+0xddc/0x1a18 [ 217.853585][ T6170] get_tree_bdev+0x358/0x544 [ 217.854387][ T6170] gfs2_get_tree+0x54/0x1b4 [ 217.855142][ T6170] vfs_get_tree+0x90/0x274 [ 217.855912][ T6170] do_new_mount+0x228/0x810 [ 217.856681][ T6170] path_mount+0x5bc/0x1008 [ 217.857445][ T6170] __arm64_sys_mount+0x514/0x5f0 [ 217.858278][ T6170] invoke_syscall+0x98/0x2b0 [ 217.859023][ T6170] el0_svc_common+0x138/0x258 [ 217.859769][ T6170] do_el0_svc+0x58/0x13c [ 217.860443][ T6170] el0_svc+0x78/0x1d0 [ 217.861085][ T6170] el0t_64_sync_handler+0xcc/0xe4 [ 217.861893][ T6170] el0t_64_sync+0x1a0/0x1a4 [ 217.864289][ T6170] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.866246][ T6170] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.014634][ T6172] loop1: detected capacity change from 0 to 32768 [ 218.069403][ T6172] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.070564][ T6172] CPU: 0 PID: 6172 Comm: syz.1.622 Not tainted syzkaller #0 [ 218.071714][ T6172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.073326][ T6172] Call trace: [ 218.073872][ T6172] dump_backtrace+0x0/0x458 [ 218.074589][ T6172] show_stack+0x2c/0x3c [ 218.075281][ T6172] __dump_stack+0x30/0x40 [ 218.075945][ T6172] dump_stack_lvl+0xf4/0x15c [ 218.076671][ T6172] dump_stack+0x1c/0x5c [ 218.077291][ T6172] sysfs_create_dir_ns+0x244/0x264 [ 218.078092][ T6172] kobject_add_internal+0x5ac/0xc3c [ 218.078897][ T6172] kobject_init_and_add+0x124/0x190 [ 218.079743][ T6172] gfs2_sys_fs_add+0x200/0x41c [ 218.080530][ T6172] gfs2_fill_super+0xddc/0x1a18 [ 218.081365][ T6172] get_tree_bdev+0x358/0x544 [ 218.082157][ T6172] gfs2_get_tree+0x54/0x1b4 [ 218.082843][ T6172] vfs_get_tree+0x90/0x274 [ 218.083568][ T6172] do_new_mount+0x228/0x810 [ 218.084299][ T6172] path_mount+0x5bc/0x1008 [ 218.084986][ T6172] __arm64_sys_mount+0x514/0x5f0 [ 218.085707][ T6172] invoke_syscall+0x98/0x2b0 [ 218.086426][ T6172] el0_svc_common+0x138/0x258 [ 218.087199][ T6172] do_el0_svc+0x58/0x13c [ 218.087878][ T6172] el0_svc+0x78/0x1d0 [ 218.088486][ T6172] el0t_64_sync_handler+0xcc/0xe4 [ 218.089317][ T6172] el0t_64_sync+0x1a0/0x1a4 [ 218.091477][ T6172] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.093594][ T6172] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.235376][ T6174] loop1: detected capacity change from 0 to 32768 [ 218.243113][ T6174] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.244735][ T6174] CPU: 1 PID: 6174 Comm: syz.1.623 Not tainted syzkaller #0 [ 218.246007][ T6174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.247672][ T6174] Call trace: [ 218.248225][ T6174] dump_backtrace+0x0/0x458 [ 218.248915][ T6174] show_stack+0x2c/0x3c [ 218.249572][ T6174] __dump_stack+0x30/0x40 [ 218.250214][ T6174] dump_stack_lvl+0xf4/0x15c [ 218.250900][ T6174] dump_stack+0x1c/0x5c [ 218.251533][ T6174] sysfs_create_dir_ns+0x244/0x264 [ 218.252402][ T6174] kobject_add_internal+0x5ac/0xc3c [ 218.253249][ T6174] kobject_init_and_add+0x124/0x190 [ 218.254122][ T6174] gfs2_sys_fs_add+0x200/0x41c [ 218.254866][ T6174] gfs2_fill_super+0xddc/0x1a18 [ 218.255668][ T6174] get_tree_bdev+0x358/0x544 [ 218.256407][ T6174] gfs2_get_tree+0x54/0x1b4 [ 218.257157][ T6174] vfs_get_tree+0x90/0x274 [ 218.257876][ T6174] do_new_mount+0x228/0x810 [ 218.258603][ T6174] path_mount+0x5bc/0x1008 [ 218.259315][ T6174] __arm64_sys_mount+0x514/0x5f0 [ 218.260076][ T6174] invoke_syscall+0x98/0x2b0 [ 218.260873][ T6174] el0_svc_common+0x138/0x258 [ 218.261603][ T6174] do_el0_svc+0x58/0x13c [ 218.262259][ T6174] el0_svc+0x78/0x1d0 [ 218.262896][ T6174] el0t_64_sync_handler+0xcc/0xe4 [ 218.263682][ T6174] el0t_64_sync+0x1a0/0x1a4 [ 218.266978][ T6174] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.268919][ T6174] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.451382][ T6176] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.452552][ T6176] CPU: 1 PID: 6176 Comm: syz.1.624 Not tainted syzkaller #0 [ 218.453707][ T6176] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.455310][ T6176] Call trace: [ 218.455820][ T6176] dump_backtrace+0x0/0x458 [ 218.456513][ T6176] show_stack+0x2c/0x3c [ 218.457175][ T6176] __dump_stack+0x30/0x40 [ 218.457873][ T6176] dump_stack_lvl+0xf4/0x15c [ 218.458624][ T6176] dump_stack+0x1c/0x5c [ 218.459293][ T6176] sysfs_create_dir_ns+0x244/0x264 [ 218.460141][ T6176] kobject_add_internal+0x5ac/0xc3c [ 218.460966][ T6176] kobject_init_and_add+0x124/0x190 [ 218.461769][ T6176] gfs2_sys_fs_add+0x200/0x41c [ 218.462546][ T6176] gfs2_fill_super+0xddc/0x1a18 [ 218.463331][ T6176] get_tree_bdev+0x358/0x544 [ 218.464071][ T6176] gfs2_get_tree+0x54/0x1b4 [ 218.464747][ T6176] vfs_get_tree+0x90/0x274 [ 218.465470][ T6176] do_new_mount+0x228/0x810 [ 218.466187][ T6176] path_mount+0x5bc/0x1008 [ 218.466863][ T6176] __arm64_sys_mount+0x514/0x5f0 [ 218.467570][ T6176] invoke_syscall+0x98/0x2b0 [ 218.468242][ T6176] el0_svc_common+0x138/0x258 [ 218.468943][ T6176] do_el0_svc+0x58/0x13c [ 218.469595][ T6176] el0_svc+0x78/0x1d0 [ 218.470183][ T6176] el0t_64_sync_handler+0xcc/0xe4 [ 218.471036][ T6176] el0t_64_sync+0x1a0/0x1a4 [ 218.473461][ T6176] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.475615][ T6176] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.646516][ T6178] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.647684][ T6178] CPU: 0 PID: 6178 Comm: syz.1.625 Not tainted syzkaller #0 [ 218.648749][ T6178] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.650317][ T6178] Call trace: [ 218.650830][ T6178] dump_backtrace+0x0/0x458 [ 218.651622][ T6178] show_stack+0x2c/0x3c [ 218.652361][ T6178] __dump_stack+0x30/0x40 [ 218.653050][ T6178] dump_stack_lvl+0xf4/0x15c [ 218.653816][ T6178] dump_stack+0x1c/0x5c [ 218.654499][ T6178] sysfs_create_dir_ns+0x244/0x264 [ 218.655326][ T6178] kobject_add_internal+0x5ac/0xc3c [ 218.656177][ T6178] kobject_init_and_add+0x124/0x190 [ 218.657055][ T6178] gfs2_sys_fs_add+0x200/0x41c [ 218.657858][ T6178] gfs2_fill_super+0xddc/0x1a18 [ 218.658650][ T6178] get_tree_bdev+0x358/0x544 [ 218.659408][ T6178] gfs2_get_tree+0x54/0x1b4 [ 218.660123][ T6178] vfs_get_tree+0x90/0x274 [ 218.660858][ T6178] do_new_mount+0x228/0x810 [ 218.661564][ T6178] path_mount+0x5bc/0x1008 [ 218.662230][ T6178] __arm64_sys_mount+0x514/0x5f0 [ 218.662989][ T6178] invoke_syscall+0x98/0x2b0 [ 218.663681][ T6178] el0_svc_common+0x138/0x258 [ 218.664383][ T6178] do_el0_svc+0x58/0x13c [ 218.665063][ T6178] el0_svc+0x78/0x1d0 [ 218.665684][ T6178] el0t_64_sync_handler+0xcc/0xe4 [ 218.666506][ T6178] el0t_64_sync+0x1a0/0x1a4 [ 218.668667][ T6178] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.670677][ T6178] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.835165][ T6180] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.836362][ T6180] CPU: 0 PID: 6180 Comm: syz.1.626 Not tainted syzkaller #0 [ 218.837571][ T6180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.839184][ T6180] Call trace: [ 218.839702][ T6180] dump_backtrace+0x0/0x458 [ 218.840425][ T6180] show_stack+0x2c/0x3c [ 218.841077][ T6180] __dump_stack+0x30/0x40 [ 218.841761][ T6180] dump_stack_lvl+0xf4/0x15c [ 218.842458][ T6180] dump_stack+0x1c/0x5c [ 218.843121][ T6180] sysfs_create_dir_ns+0x244/0x264 [ 218.843939][ T6180] kobject_add_internal+0x5ac/0xc3c [ 218.844776][ T6180] kobject_init_and_add+0x124/0x190 [ 218.845608][ T6180] gfs2_sys_fs_add+0x200/0x41c [ 218.846336][ T6180] gfs2_fill_super+0xddc/0x1a18 [ 218.847063][ T6180] get_tree_bdev+0x358/0x544 [ 218.847816][ T6180] gfs2_get_tree+0x54/0x1b4 [ 218.848508][ T6180] vfs_get_tree+0x90/0x274 [ 218.849174][ T6180] do_new_mount+0x228/0x810 [ 218.849863][ T6180] path_mount+0x5bc/0x1008 [ 218.850546][ T6180] __arm64_sys_mount+0x514/0x5f0 [ 218.851246][ T6180] invoke_syscall+0x98/0x2b0 [ 218.851958][ T6180] el0_svc_common+0x138/0x258 [ 218.852655][ T6180] do_el0_svc+0x58/0x13c [ 218.853300][ T6180] el0_svc+0x78/0x1d0 [ 218.853908][ T6180] el0t_64_sync_handler+0xcc/0xe4 [ 218.854672][ T6180] el0t_64_sync+0x1a0/0x1a4 [ 218.857042][ T6180] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.858994][ T6180] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.147104][ T6182] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.148228][ T6182] CPU: 0 PID: 6182 Comm: syz.1.627 Not tainted syzkaller #0 [ 219.149288][ T6182] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.150723][ T6182] Call trace: [ 219.151275][ T6182] dump_backtrace+0x0/0x458 [ 219.151922][ T6182] show_stack+0x2c/0x3c [ 219.152482][ T6182] __dump_stack+0x30/0x40 [ 219.153081][ T6182] dump_stack_lvl+0xf4/0x15c [ 219.153736][ T6182] dump_stack+0x1c/0x5c [ 219.154384][ T6182] sysfs_create_dir_ns+0x244/0x264 [ 219.155318][ T6182] kobject_add_internal+0x5ac/0xc3c [ 219.156256][ T6182] kobject_init_and_add+0x124/0x190 [ 219.157141][ T6182] gfs2_sys_fs_add+0x200/0x41c [ 219.157981][ T6182] gfs2_fill_super+0xddc/0x1a18 [ 219.158764][ T6182] get_tree_bdev+0x358/0x544 [ 219.159508][ T6182] gfs2_get_tree+0x54/0x1b4 [ 219.160259][ T6182] vfs_get_tree+0x90/0x274 [ 219.161000][ T6182] do_new_mount+0x228/0x810 [ 219.161761][ T6182] path_mount+0x5bc/0x1008 [ 219.162511][ T6182] __arm64_sys_mount+0x514/0x5f0 [ 219.163357][ T6182] invoke_syscall+0x98/0x2b0 [ 219.164115][ T6182] el0_svc_common+0x138/0x258 [ 219.164879][ T6182] do_el0_svc+0x58/0x13c [ 219.165578][ T6182] el0_svc+0x78/0x1d0 [ 219.166230][ T6182] el0t_64_sync_handler+0xcc/0xe4 [ 219.167027][ T6182] el0t_64_sync+0x1a0/0x1a4 [ 219.171085][ T6182] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.173086][ T6182] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:39 executed programs: 614 [ 219.384163][ T4162] Bluetooth: hci2: command 0x041b tx timeout [ 219.426056][ T6184] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.427269][ T6184] CPU: 0 PID: 6184 Comm: syz.1.628 Not tainted syzkaller #0 [ 219.428375][ T6184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.429958][ T6184] Call trace: [ 219.430520][ T6184] dump_backtrace+0x0/0x458 [ 219.431219][ T6184] show_stack+0x2c/0x3c [ 219.431892][ T6184] __dump_stack+0x30/0x40 [ 219.432605][ T6184] dump_stack_lvl+0xf4/0x15c [ 219.433329][ T6184] dump_stack+0x1c/0x5c [ 219.433961][ T6184] sysfs_create_dir_ns+0x244/0x264 [ 219.434820][ T6184] kobject_add_internal+0x5ac/0xc3c [ 219.435656][ T6184] kobject_init_and_add+0x124/0x190 [ 219.436474][ T6184] gfs2_sys_fs_add+0x200/0x41c [ 219.437254][ T6184] gfs2_fill_super+0xddc/0x1a18 [ 219.438014][ T6184] get_tree_bdev+0x358/0x544 [ 219.438707][ T6184] gfs2_get_tree+0x54/0x1b4 [ 219.439403][ T6184] vfs_get_tree+0x90/0x274 [ 219.440132][ T6184] do_new_mount+0x228/0x810 [ 219.440801][ T6184] path_mount+0x5bc/0x1008 [ 219.441503][ T6184] __arm64_sys_mount+0x514/0x5f0 [ 219.442343][ T6184] invoke_syscall+0x98/0x2b0 [ 219.443082][ T6184] el0_svc_common+0x138/0x258 [ 219.443809][ T6184] do_el0_svc+0x58/0x13c [ 219.444448][ T6184] el0_svc+0x78/0x1d0 [ 219.445049][ T6184] el0t_64_sync_handler+0xcc/0xe4 [ 219.445816][ T6184] el0t_64_sync+0x1a0/0x1a4 [ 219.447593][ T6184] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.449466][ T6184] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.618333][ T6186] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.619510][ T6186] CPU: 1 PID: 6186 Comm: syz.1.629 Not tainted syzkaller #0 [ 219.620689][ T6186] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.622239][ T6186] Call trace: [ 219.622754][ T6186] dump_backtrace+0x0/0x458 [ 219.623512][ T6186] show_stack+0x2c/0x3c [ 219.624195][ T6186] __dump_stack+0x30/0x40 [ 219.624941][ T6186] dump_stack_lvl+0xf4/0x15c [ 219.625689][ T6186] dump_stack+0x1c/0x5c [ 219.626338][ T6186] sysfs_create_dir_ns+0x244/0x264 [ 219.627173][ T6186] kobject_add_internal+0x5ac/0xc3c [ 219.628036][ T6186] kobject_init_and_add+0x124/0x190 [ 219.628922][ T6186] gfs2_sys_fs_add+0x200/0x41c [ 219.629703][ T6186] gfs2_fill_super+0xddc/0x1a18 [ 219.630510][ T6186] get_tree_bdev+0x358/0x544 [ 219.631250][ T6186] gfs2_get_tree+0x54/0x1b4 [ 219.631984][ T6186] vfs_get_tree+0x90/0x274 [ 219.632701][ T6186] do_new_mount+0x228/0x810 [ 219.633482][ T6186] path_mount+0x5bc/0x1008 [ 219.634193][ T6186] __arm64_sys_mount+0x514/0x5f0 [ 219.634985][ T6186] invoke_syscall+0x98/0x2b0 [ 219.635783][ T6186] el0_svc_common+0x138/0x258 [ 219.636594][ T6186] do_el0_svc+0x58/0x13c [ 219.637348][ T6186] el0_svc+0x78/0x1d0 [ 219.638028][ T6186] el0t_64_sync_handler+0xcc/0xe4 [ 219.638905][ T6186] el0t_64_sync+0x1a0/0x1a4 [ 219.643452][ T6186] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.645647][ T6186] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.925063][ T6188] set_capacity_and_notify: 6 callbacks suppressed [ 219.925074][ T6188] loop1: detected capacity change from 0 to 32768 [ 219.973867][ T6188] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.975074][ T6188] CPU: 1 PID: 6188 Comm: syz.1.630 Not tainted syzkaller #0 [ 219.976201][ T6188] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.977839][ T6188] Call trace: [ 219.978383][ T6188] dump_backtrace+0x0/0x458 [ 219.979083][ T6188] show_stack+0x2c/0x3c [ 219.979768][ T6188] __dump_stack+0x30/0x40 [ 219.980497][ T6188] dump_stack_lvl+0xf4/0x15c [ 219.981220][ T6188] dump_stack+0x1c/0x5c [ 219.981879][ T6188] sysfs_create_dir_ns+0x244/0x264 [ 219.982689][ T6188] kobject_add_internal+0x5ac/0xc3c [ 219.983516][ T6188] kobject_init_and_add+0x124/0x190 [ 219.984335][ T6188] gfs2_sys_fs_add+0x200/0x41c [ 219.985088][ T6188] gfs2_fill_super+0xddc/0x1a18 [ 219.985868][ T6188] get_tree_bdev+0x358/0x544 [ 219.986612][ T6188] gfs2_get_tree+0x54/0x1b4 [ 219.987343][ T6188] vfs_get_tree+0x90/0x274 [ 219.988045][ T6188] do_new_mount+0x228/0x810 [ 219.988781][ T6188] path_mount+0x5bc/0x1008 [ 219.989489][ T6188] __arm64_sys_mount+0x514/0x5f0 [ 219.990294][ T6188] invoke_syscall+0x98/0x2b0 [ 219.991024][ T6188] el0_svc_common+0x138/0x258 [ 219.991773][ T6188] do_el0_svc+0x58/0x13c [ 219.992497][ T6188] el0_svc+0x78/0x1d0 [ 219.993107][ T6188] el0t_64_sync_handler+0xcc/0xe4 [ 219.993872][ T6188] el0t_64_sync+0x1a0/0x1a4 [ 219.995553][ T6188] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.997631][ T6188] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.136290][ T6190] loop1: detected capacity change from 0 to 32768 [ 220.140808][ T6190] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.141996][ T6190] CPU: 1 PID: 6190 Comm: syz.1.631 Not tainted syzkaller #0 [ 220.143203][ T6190] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.144861][ T6190] Call trace: [ 220.145385][ T6190] dump_backtrace+0x0/0x458 [ 220.146105][ T6190] show_stack+0x2c/0x3c [ 220.146810][ T6190] __dump_stack+0x30/0x40 [ 220.147555][ T6190] dump_stack_lvl+0xf4/0x15c [ 220.148281][ T6190] dump_stack+0x1c/0x5c [ 220.148994][ T6190] sysfs_create_dir_ns+0x244/0x264 [ 220.149775][ T6190] kobject_add_internal+0x5ac/0xc3c [ 220.150624][ T6190] kobject_init_and_add+0x124/0x190 [ 220.151431][ T6190] gfs2_sys_fs_add+0x200/0x41c [ 220.152166][ T6190] gfs2_fill_super+0xddc/0x1a18 [ 220.152955][ T6190] get_tree_bdev+0x358/0x544 [ 220.153779][ T6190] gfs2_get_tree+0x54/0x1b4 [ 220.154531][ T6190] vfs_get_tree+0x90/0x274 [ 220.155249][ T6190] do_new_mount+0x228/0x810 [ 220.155999][ T6190] path_mount+0x5bc/0x1008 [ 220.156702][ T6190] __arm64_sys_mount+0x514/0x5f0 [ 220.157518][ T6190] invoke_syscall+0x98/0x2b0 [ 220.158297][ T6190] el0_svc_common+0x138/0x258 [ 220.159066][ T6190] do_el0_svc+0x58/0x13c [ 220.159792][ T6190] el0_svc+0x78/0x1d0 [ 220.160467][ T6190] el0t_64_sync_handler+0xcc/0xe4 [ 220.161246][ T6190] el0t_64_sync+0x1a0/0x1a4 [ 220.163406][ T6190] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.165587][ T6190] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.308753][ T6192] loop1: detected capacity change from 0 to 32768 [ 220.363722][ T6192] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.365382][ T6192] CPU: 1 PID: 6192 Comm: syz.1.632 Not tainted syzkaller #0 [ 220.366556][ T6192] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.368233][ T6192] Call trace: [ 220.368725][ T6192] dump_backtrace+0x0/0x458 [ 220.369509][ T6192] show_stack+0x2c/0x3c [ 220.370132][ T6192] __dump_stack+0x30/0x40 [ 220.370782][ T6192] dump_stack_lvl+0xf4/0x15c [ 220.371546][ T6192] dump_stack+0x1c/0x5c [ 220.372266][ T6192] sysfs_create_dir_ns+0x244/0x264 [ 220.373129][ T6192] kobject_add_internal+0x5ac/0xc3c [ 220.373953][ T6192] kobject_init_and_add+0x124/0x190 [ 220.374789][ T6192] gfs2_sys_fs_add+0x200/0x41c [ 220.375579][ T6192] gfs2_fill_super+0xddc/0x1a18 [ 220.376409][ T6192] get_tree_bdev+0x358/0x544 [ 220.377164][ T6192] gfs2_get_tree+0x54/0x1b4 [ 220.377931][ T6192] vfs_get_tree+0x90/0x274 [ 220.378665][ T6192] do_new_mount+0x228/0x810 [ 220.379377][ T6192] path_mount+0x5bc/0x1008 [ 220.380087][ T6192] __arm64_sys_mount+0x514/0x5f0 [ 220.380844][ T6192] invoke_syscall+0x98/0x2b0 [ 220.381657][ T6192] el0_svc_common+0x138/0x258 [ 220.382470][ T6192] do_el0_svc+0x58/0x13c [ 220.383164][ T6192] el0_svc+0x78/0x1d0 [ 220.383791][ T6192] el0t_64_sync_handler+0xcc/0xe4 [ 220.384588][ T6192] el0t_64_sync+0x1a0/0x1a4 [ 220.386839][ T6192] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.388842][ T6192] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.523907][ T6194] loop1: detected capacity change from 0 to 32768 [ 220.579515][ T6194] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.580704][ T6194] CPU: 1 PID: 6194 Comm: syz.1.633 Not tainted syzkaller #0 [ 220.581794][ T6194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.583423][ T6194] Call trace: [ 220.583970][ T6194] dump_backtrace+0x0/0x458 [ 220.584761][ T6194] show_stack+0x2c/0x3c [ 220.585460][ T6194] __dump_stack+0x30/0x40 [ 220.586193][ T6194] dump_stack_lvl+0xf4/0x15c [ 220.586921][ T6194] dump_stack+0x1c/0x5c [ 220.587567][ T6194] sysfs_create_dir_ns+0x244/0x264 [ 220.588373][ T6194] kobject_add_internal+0x5ac/0xc3c [ 220.589215][ T6194] kobject_init_and_add+0x124/0x190 [ 220.590011][ T6194] gfs2_sys_fs_add+0x200/0x41c [ 220.590775][ T6194] gfs2_fill_super+0xddc/0x1a18 [ 220.591550][ T6194] get_tree_bdev+0x358/0x544 [ 220.592314][ T6194] gfs2_get_tree+0x54/0x1b4 [ 220.593091][ T6194] vfs_get_tree+0x90/0x274 [ 220.593770][ T6194] do_new_mount+0x228/0x810 [ 220.594520][ T6194] path_mount+0x5bc/0x1008 [ 220.595253][ T6194] __arm64_sys_mount+0x514/0x5f0 [ 220.596054][ T6194] invoke_syscall+0x98/0x2b0 [ 220.596848][ T6194] el0_svc_common+0x138/0x258 [ 220.597668][ T6194] do_el0_svc+0x58/0x13c [ 220.598354][ T6194] el0_svc+0x78/0x1d0 [ 220.599038][ T6194] el0t_64_sync_handler+0xcc/0xe4 [ 220.599850][ T6194] el0t_64_sync+0x1a0/0x1a4 [ 220.602594][ T6194] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.604976][ T6194] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.742977][ T6196] loop1: detected capacity change from 0 to 32768 [ 220.751260][ T6196] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.752478][ T6196] CPU: 1 PID: 6196 Comm: syz.1.634 Not tainted syzkaller #0 [ 220.753609][ T6196] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.755314][ T6196] Call trace: [ 220.755836][ T6196] dump_backtrace+0x0/0x458 [ 220.756535][ T6196] show_stack+0x2c/0x3c [ 220.757207][ T6196] __dump_stack+0x30/0x40 [ 220.757948][ T6196] dump_stack_lvl+0xf4/0x15c [ 220.758722][ T6196] dump_stack+0x1c/0x5c [ 220.759409][ T6196] sysfs_create_dir_ns+0x244/0x264 [ 220.760209][ T6196] kobject_add_internal+0x5ac/0xc3c [ 220.761028][ T6196] kobject_init_and_add+0x124/0x190 [ 220.761895][ T6196] gfs2_sys_fs_add+0x200/0x41c [ 220.762745][ T6196] gfs2_fill_super+0xddc/0x1a18 [ 220.763535][ T6196] get_tree_bdev+0x358/0x544 [ 220.764241][ T6196] gfs2_get_tree+0x54/0x1b4 [ 220.764966][ T6196] vfs_get_tree+0x90/0x274 [ 220.765640][ T6196] do_new_mount+0x228/0x810 [ 220.766379][ T6196] path_mount+0x5bc/0x1008 [ 220.767080][ T6196] __arm64_sys_mount+0x514/0x5f0 [ 220.767817][ T6196] invoke_syscall+0x98/0x2b0 [ 220.768509][ T6196] el0_svc_common+0x138/0x258 [ 220.769262][ T6196] do_el0_svc+0x58/0x13c [ 220.769886][ T6196] el0_svc+0x78/0x1d0 [ 220.770515][ T6196] el0t_64_sync_handler+0xcc/0xe4 [ 220.771315][ T6196] el0t_64_sync+0x1a0/0x1a4 [ 220.773630][ T6196] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.775615][ T6196] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.910181][ T6198] loop1: detected capacity change from 0 to 32768 [ 220.917995][ T6198] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.919115][ T6198] CPU: 1 PID: 6198 Comm: syz.1.635 Not tainted syzkaller #0 [ 220.920201][ T6198] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.921910][ T6198] Call trace: [ 220.922431][ T6198] dump_backtrace+0x0/0x458 [ 220.923179][ T6198] show_stack+0x2c/0x3c [ 220.923900][ T6198] __dump_stack+0x30/0x40 [ 220.924626][ T6198] dump_stack_lvl+0xf4/0x15c [ 220.925463][ T6198] dump_stack+0x1c/0x5c [ 220.926160][ T6198] sysfs_create_dir_ns+0x244/0x264 [ 220.926998][ T6198] kobject_add_internal+0x5ac/0xc3c [ 220.927895][ T6198] kobject_init_and_add+0x124/0x190 [ 220.928773][ T6198] gfs2_sys_fs_add+0x200/0x41c [ 220.929556][ T6198] gfs2_fill_super+0xddc/0x1a18 [ 220.930340][ T6198] get_tree_bdev+0x358/0x544 [ 220.931094][ T6198] gfs2_get_tree+0x54/0x1b4 [ 220.931844][ T6198] vfs_get_tree+0x90/0x274 [ 220.932541][ T6198] do_new_mount+0x228/0x810 [ 220.933204][ T6198] path_mount+0x5bc/0x1008 [ 220.933915][ T6198] __arm64_sys_mount+0x514/0x5f0 [ 220.934700][ T6198] invoke_syscall+0x98/0x2b0 [ 220.935445][ T6198] el0_svc_common+0x138/0x258 [ 220.936197][ T6198] do_el0_svc+0x58/0x13c [ 220.936898][ T6198] el0_svc+0x78/0x1d0 [ 220.937514][ T6198] el0t_64_sync_handler+0xcc/0xe4 [ 220.938258][ T6198] el0t_64_sync+0x1a0/0x1a4 [ 220.940555][ T6198] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.942637][ T6198] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.078675][ T6200] loop1: detected capacity change from 0 to 32768 [ 221.086516][ T6200] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.087671][ T6200] CPU: 0 PID: 6200 Comm: syz.1.636 Not tainted syzkaller #0 [ 221.088790][ T6200] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.090295][ T6200] Call trace: [ 221.090779][ T6200] dump_backtrace+0x0/0x458 [ 221.091572][ T6200] show_stack+0x2c/0x3c [ 221.092268][ T6200] __dump_stack+0x30/0x40 [ 221.092951][ T6200] dump_stack_lvl+0xf4/0x15c [ 221.093703][ T6200] dump_stack+0x1c/0x5c [ 221.094383][ T6200] sysfs_create_dir_ns+0x244/0x264 [ 221.095234][ T6200] kobject_add_internal+0x5ac/0xc3c [ 221.096079][ T6200] kobject_init_and_add+0x124/0x190 [ 221.096913][ T6200] gfs2_sys_fs_add+0x200/0x41c [ 221.097688][ T6200] gfs2_fill_super+0xddc/0x1a18 [ 221.098445][ T6200] get_tree_bdev+0x358/0x544 [ 221.099161][ T6200] gfs2_get_tree+0x54/0x1b4 [ 221.099904][ T6200] vfs_get_tree+0x90/0x274 [ 221.100609][ T6200] do_new_mount+0x228/0x810 [ 221.101369][ T6200] path_mount+0x5bc/0x1008 [ 221.102086][ T6200] __arm64_sys_mount+0x514/0x5f0 [ 221.102924][ T6200] invoke_syscall+0x98/0x2b0 [ 221.103697][ T6200] el0_svc_common+0x138/0x258 [ 221.104462][ T6200] do_el0_svc+0x58/0x13c [ 221.105130][ T6200] el0_svc+0x78/0x1d0 [ 221.105738][ T6200] el0t_64_sync_handler+0xcc/0xe4 [ 221.106573][ T6200] el0t_64_sync+0x1a0/0x1a4 [ 221.107708][ T6200] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.109673][ T6200] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.241691][ T6202] loop1: detected capacity change from 0 to 32768 [ 221.279596][ T6202] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.280804][ T6202] CPU: 0 PID: 6202 Comm: syz.1.637 Not tainted syzkaller #0 [ 221.281852][ T6202] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.283312][ T6202] Call trace: [ 221.283797][ T6202] dump_backtrace+0x0/0x458 [ 221.284495][ T6202] show_stack+0x2c/0x3c [ 221.285131][ T6202] __dump_stack+0x30/0x40 [ 221.285773][ T6202] dump_stack_lvl+0xf4/0x15c [ 221.286490][ T6202] dump_stack+0x1c/0x5c [ 221.287194][ T6202] sysfs_create_dir_ns+0x244/0x264 [ 221.288014][ T6202] kobject_add_internal+0x5ac/0xc3c [ 221.288787][ T6202] kobject_init_and_add+0x124/0x190 [ 221.289587][ T6202] gfs2_sys_fs_add+0x200/0x41c [ 221.290410][ T6202] gfs2_fill_super+0xddc/0x1a18 [ 221.291200][ T6202] get_tree_bdev+0x358/0x544 [ 221.291940][ T6202] gfs2_get_tree+0x54/0x1b4 [ 221.292656][ T6202] vfs_get_tree+0x90/0x274 [ 221.293334][ T6202] do_new_mount+0x228/0x810 [ 221.294003][ T6202] path_mount+0x5bc/0x1008 [ 221.294705][ T6202] __arm64_sys_mount+0x514/0x5f0 [ 221.295487][ T6202] invoke_syscall+0x98/0x2b0 [ 221.296224][ T6202] el0_svc_common+0x138/0x258 [ 221.296886][ T6202] do_el0_svc+0x58/0x13c [ 221.297568][ T6202] el0_svc+0x78/0x1d0 [ 221.298182][ T6202] el0t_64_sync_handler+0xcc/0xe4 [ 221.298977][ T6202] el0t_64_sync+0x1a0/0x1a4 [ 221.299906][ T6202] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.302058][ T6202] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.464159][ T4167] Bluetooth: hci2: command 0x040f tx timeout [ 221.464548][ T6204] loop1: detected capacity change from 0 to 32768 [ 221.472462][ T6204] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.473679][ T6204] CPU: 1 PID: 6204 Comm: syz.1.638 Not tainted syzkaller #0 [ 221.474817][ T6204] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.476469][ T6204] Call trace: [ 221.476988][ T6204] dump_backtrace+0x0/0x458 [ 221.477720][ T6204] show_stack+0x2c/0x3c [ 221.478402][ T6204] __dump_stack+0x30/0x40 [ 221.479147][ T6204] dump_stack_lvl+0xf4/0x15c [ 221.479879][ T6204] dump_stack+0x1c/0x5c [ 221.480516][ T6204] sysfs_create_dir_ns+0x244/0x264 [ 221.481314][ T6204] kobject_add_internal+0x5ac/0xc3c [ 221.482147][ T6204] kobject_init_and_add+0x124/0x190 [ 221.482976][ T6204] gfs2_sys_fs_add+0x200/0x41c [ 221.483691][ T6204] gfs2_fill_super+0xddc/0x1a18 [ 221.484454][ T6204] get_tree_bdev+0x358/0x544 [ 221.485197][ T6204] gfs2_get_tree+0x54/0x1b4 [ 221.485832][ T6204] vfs_get_tree+0x90/0x274 [ 221.486558][ T6204] do_new_mount+0x228/0x810 [ 221.487299][ T6204] path_mount+0x5bc/0x1008 [ 221.487954][ T6204] __arm64_sys_mount+0x514/0x5f0 [ 221.488720][ T6204] invoke_syscall+0x98/0x2b0 [ 221.489470][ T6204] el0_svc_common+0x138/0x258 [ 221.490220][ T6204] do_el0_svc+0x58/0x13c [ 221.490825][ T6204] el0_svc+0x78/0x1d0 [ 221.491530][ T6204] el0t_64_sync_handler+0xcc/0xe4 [ 221.492343][ T6204] el0t_64_sync+0x1a0/0x1a4 [ 221.493254][ T6204] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.495391][ T6204] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.633168][ T6206] loop1: detected capacity change from 0 to 32768 [ 221.642239][ T6206] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.643452][ T6206] CPU: 1 PID: 6206 Comm: syz.1.639 Not tainted syzkaller #0 [ 221.644613][ T6206] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.646270][ T6206] Call trace: [ 221.646748][ T6206] dump_backtrace+0x0/0x458 [ 221.647480][ T6206] show_stack+0x2c/0x3c [ 221.648118][ T6206] __dump_stack+0x30/0x40 [ 221.648757][ T6206] dump_stack_lvl+0xf4/0x15c [ 221.649479][ T6206] dump_stack+0x1c/0x5c [ 221.650102][ T6206] sysfs_create_dir_ns+0x244/0x264 [ 221.650910][ T6206] kobject_add_internal+0x5ac/0xc3c [ 221.651694][ T6206] kobject_init_and_add+0x124/0x190 [ 221.652525][ T6206] gfs2_sys_fs_add+0x200/0x41c [ 221.653304][ T6206] gfs2_fill_super+0xddc/0x1a18 [ 221.654077][ T6206] get_tree_bdev+0x358/0x544 [ 221.654818][ T6206] gfs2_get_tree+0x54/0x1b4 [ 221.655558][ T6206] vfs_get_tree+0x90/0x274 [ 221.656291][ T6206] do_new_mount+0x228/0x810 [ 221.656996][ T6206] path_mount+0x5bc/0x1008 [ 221.657700][ T6206] __arm64_sys_mount+0x514/0x5f0 [ 221.658478][ T6206] invoke_syscall+0x98/0x2b0 [ 221.659229][ T6206] el0_svc_common+0x138/0x258 [ 221.660034][ T6206] do_el0_svc+0x58/0x13c [ 221.660738][ T6206] el0_svc+0x78/0x1d0 [ 221.661415][ T6206] el0t_64_sync_handler+0xcc/0xe4 [ 221.662255][ T6206] el0t_64_sync+0x1a0/0x1a4 [ 221.663156][ T6206] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.665384][ T6206] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.812831][ T6208] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.814161][ T6208] CPU: 0 PID: 6208 Comm: syz.1.640 Not tainted syzkaller #0 [ 221.815255][ T6208] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.816834][ T6208] Call trace: [ 221.817358][ T6208] dump_backtrace+0x0/0x458 [ 221.818050][ T6208] show_stack+0x2c/0x3c [ 221.818723][ T6208] __dump_stack+0x30/0x40 [ 221.819414][ T6208] dump_stack_lvl+0xf4/0x15c [ 221.820156][ T6208] dump_stack+0x1c/0x5c [ 221.820786][ T6208] sysfs_create_dir_ns+0x244/0x264 [ 221.821645][ T6208] kobject_add_internal+0x5ac/0xc3c [ 221.822467][ T6208] kobject_init_and_add+0x124/0x190 [ 221.823278][ T6208] gfs2_sys_fs_add+0x200/0x41c [ 221.824042][ T6208] gfs2_fill_super+0xddc/0x1a18 [ 221.824816][ T6208] get_tree_bdev+0x358/0x544 [ 221.825567][ T6208] gfs2_get_tree+0x54/0x1b4 [ 221.826309][ T6208] vfs_get_tree+0x90/0x274 [ 221.827033][ T6208] do_new_mount+0x228/0x810 [ 221.827739][ T6208] path_mount+0x5bc/0x1008 [ 221.828476][ T6208] __arm64_sys_mount+0x514/0x5f0 [ 221.829280][ T6208] invoke_syscall+0x98/0x2b0 [ 221.830032][ T6208] el0_svc_common+0x138/0x258 [ 221.830755][ T6208] do_el0_svc+0x58/0x13c [ 221.831469][ T6208] el0_svc+0x78/0x1d0 [ 221.832096][ T6208] el0t_64_sync_handler+0xcc/0xe4 [ 221.832914][ T6208] el0t_64_sync+0x1a0/0x1a4 [ 221.836082][ T6208] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.838003][ T6208] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.980973][ T6210] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.982185][ T6210] CPU: 1 PID: 6210 Comm: syz.1.641 Not tainted syzkaller #0 [ 221.983349][ T6210] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.984905][ T6210] Call trace: [ 221.985481][ T6210] dump_backtrace+0x0/0x458 [ 221.986193][ T6210] show_stack+0x2c/0x3c [ 221.986828][ T6210] __dump_stack+0x30/0x40 [ 221.987527][ T6210] dump_stack_lvl+0xf4/0x15c [ 221.988266][ T6210] dump_stack+0x1c/0x5c [ 221.988956][ T6210] sysfs_create_dir_ns+0x244/0x264 [ 221.989818][ T6210] kobject_add_internal+0x5ac/0xc3c [ 221.990627][ T6210] kobject_init_and_add+0x124/0x190 [ 221.991451][ T6210] gfs2_sys_fs_add+0x200/0x41c [ 221.992231][ T6210] gfs2_fill_super+0xddc/0x1a18 [ 221.993024][ T6210] get_tree_bdev+0x358/0x544 [ 221.993758][ T6210] gfs2_get_tree+0x54/0x1b4 [ 221.994467][ T6210] vfs_get_tree+0x90/0x274 [ 221.995139][ T6210] do_new_mount+0x228/0x810 [ 221.995939][ T6210] path_mount+0x5bc/0x1008 [ 221.996673][ T6210] __arm64_sys_mount+0x514/0x5f0 [ 221.997511][ T6210] invoke_syscall+0x98/0x2b0 [ 221.998242][ T6210] el0_svc_common+0x138/0x258 [ 221.998984][ T6210] do_el0_svc+0x58/0x13c [ 221.999681][ T6210] el0_svc+0x78/0x1d0 [ 222.000339][ T6210] el0t_64_sync_handler+0xcc/0xe4 [ 222.001122][ T6210] el0t_64_sync+0x1a0/0x1a4 [ 222.001983][ T6210] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.004135][ T6210] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.254409][ T6212] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.255607][ T6212] CPU: 0 PID: 6212 Comm: syz.1.642 Not tainted syzkaller #0 [ 222.256723][ T6212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.258220][ T6212] Call trace: [ 222.258673][ T6212] dump_backtrace+0x0/0x458 [ 222.259349][ T6212] show_stack+0x2c/0x3c [ 222.260019][ T6212] __dump_stack+0x30/0x40 [ 222.260763][ T6212] dump_stack_lvl+0xf4/0x15c [ 222.261504][ T6212] dump_stack+0x1c/0x5c [ 222.262167][ T6212] sysfs_create_dir_ns+0x244/0x264 [ 222.262978][ T6212] kobject_add_internal+0x5ac/0xc3c [ 222.263776][ T6212] kobject_init_and_add+0x124/0x190 [ 222.264604][ T6212] gfs2_sys_fs_add+0x200/0x41c [ 222.265305][ T6212] gfs2_fill_super+0xddc/0x1a18 [ 222.266077][ T6212] get_tree_bdev+0x358/0x544 [ 222.266843][ T6212] gfs2_get_tree+0x54/0x1b4 [ 222.267560][ T6212] vfs_get_tree+0x90/0x274 [ 222.268296][ T6212] do_new_mount+0x228/0x810 [ 222.269069][ T6212] path_mount+0x5bc/0x1008 [ 222.269831][ T6212] __arm64_sys_mount+0x514/0x5f0 [ 222.270635][ T6212] invoke_syscall+0x98/0x2b0 [ 222.271390][ T6212] el0_svc_common+0x138/0x258 [ 222.272154][ T6212] do_el0_svc+0x58/0x13c [ 222.272800][ T6212] el0_svc+0x78/0x1d0 [ 222.273460][ T6212] el0t_64_sync_handler+0xcc/0xe4 [ 222.274322][ T6212] el0t_64_sync+0x1a0/0x1a4 [ 222.276978][ T6212] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.278952][ T6212] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.530258][ T6214] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.531420][ T6214] CPU: 1 PID: 6214 Comm: syz.1.643 Not tainted syzkaller #0 [ 222.532513][ T6214] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.534058][ T6214] Call trace: [ 222.534601][ T6214] dump_backtrace+0x0/0x458 [ 222.535297][ T6214] show_stack+0x2c/0x3c [ 222.535928][ T6214] __dump_stack+0x30/0x40 [ 222.536607][ T6214] dump_stack_lvl+0xf4/0x15c [ 222.537333][ T6214] dump_stack+0x1c/0x5c [ 222.537918][ T6214] sysfs_create_dir_ns+0x244/0x264 [ 222.538690][ T6214] kobject_add_internal+0x5ac/0xc3c [ 222.539483][ T6214] kobject_init_and_add+0x124/0x190 [ 222.540322][ T6214] gfs2_sys_fs_add+0x200/0x41c [ 222.541026][ T6214] gfs2_fill_super+0xddc/0x1a18 [ 222.541861][ T6214] get_tree_bdev+0x358/0x544 [ 222.542583][ T6214] gfs2_get_tree+0x54/0x1b4 [ 222.543283][ T6214] vfs_get_tree+0x90/0x274 [ 222.543965][ T6214] do_new_mount+0x228/0x810 [ 222.544672][ T6214] path_mount+0x5bc/0x1008 [ 222.545431][ T6214] __arm64_sys_mount+0x514/0x5f0 [ 222.546290][ T6214] invoke_syscall+0x98/0x2b0 [ 222.547070][ T6214] el0_svc_common+0x138/0x258 [ 222.547865][ T6214] do_el0_svc+0x58/0x13c [ 222.548599][ T6214] el0_svc+0x78/0x1d0 [ 222.549274][ T6214] el0t_64_sync_handler+0xcc/0xe4 [ 222.550153][ T6214] el0t_64_sync+0x1a0/0x1a4 [ 222.551516][ T6214] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.553835][ T6214] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.694175][ T6216] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.695456][ T6216] CPU: 0 PID: 6216 Comm: syz.1.644 Not tainted syzkaller #0 [ 222.696598][ T6216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.698189][ T6216] Call trace: [ 222.698660][ T6216] dump_backtrace+0x0/0x458 [ 222.699340][ T6216] show_stack+0x2c/0x3c [ 222.699967][ T6216] __dump_stack+0x30/0x40 [ 222.700628][ T6216] dump_stack_lvl+0xf4/0x15c [ 222.701305][ T6216] dump_stack+0x1c/0x5c [ 222.701936][ T6216] sysfs_create_dir_ns+0x244/0x264 [ 222.702753][ T6216] kobject_add_internal+0x5ac/0xc3c [ 222.703577][ T6216] kobject_init_and_add+0x124/0x190 [ 222.704434][ T6216] gfs2_sys_fs_add+0x200/0x41c [ 222.705229][ T6216] gfs2_fill_super+0xddc/0x1a18 [ 222.706026][ T6216] get_tree_bdev+0x358/0x544 [ 222.706744][ T6216] gfs2_get_tree+0x54/0x1b4 [ 222.707447][ T6216] vfs_get_tree+0x90/0x274 [ 222.708130][ T6216] do_new_mount+0x228/0x810 [ 222.708822][ T6216] path_mount+0x5bc/0x1008 [ 222.709539][ T6216] __arm64_sys_mount+0x514/0x5f0 [ 222.710297][ T6216] invoke_syscall+0x98/0x2b0 [ 222.711010][ T6216] el0_svc_common+0x138/0x258 [ 222.711687][ T6216] do_el0_svc+0x58/0x13c [ 222.712441][ T6216] el0_svc+0x78/0x1d0 [ 222.713105][ T6216] el0t_64_sync_handler+0xcc/0xe4 [ 222.713956][ T6216] el0t_64_sync+0x1a0/0x1a4 [ 222.715429][ T6216] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.717476][ T6216] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.863711][ T6218] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.865031][ T6218] CPU: 1 PID: 6218 Comm: syz.1.645 Not tainted syzkaller #0 [ 222.866205][ T6218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.867841][ T6218] Call trace: [ 222.868397][ T6218] dump_backtrace+0x0/0x458 [ 222.869170][ T6218] show_stack+0x2c/0x3c [ 222.869876][ T6218] __dump_stack+0x30/0x40 [ 222.870603][ T6218] dump_stack_lvl+0xf4/0x15c [ 222.871375][ T6218] dump_stack+0x1c/0x5c [ 222.872055][ T6218] sysfs_create_dir_ns+0x244/0x264 [ 222.872894][ T6218] kobject_add_internal+0x5ac/0xc3c [ 222.873798][ T6218] kobject_init_and_add+0x124/0x190 [ 222.874647][ T6218] gfs2_sys_fs_add+0x200/0x41c [ 222.875390][ T6218] gfs2_fill_super+0xddc/0x1a18 [ 222.876165][ T6218] get_tree_bdev+0x358/0x544 [ 222.876927][ T6218] gfs2_get_tree+0x54/0x1b4 [ 222.877643][ T6218] vfs_get_tree+0x90/0x274 [ 222.878413][ T6218] do_new_mount+0x228/0x810 [ 222.879206][ T6218] path_mount+0x5bc/0x1008 [ 222.879971][ T6218] __arm64_sys_mount+0x514/0x5f0 [ 222.880826][ T6218] invoke_syscall+0x98/0x2b0 [ 222.881564][ T6218] el0_svc_common+0x138/0x258 [ 222.882274][ T6218] do_el0_svc+0x58/0x13c [ 222.882953][ T6218] el0_svc+0x78/0x1d0 [ 222.883583][ T6218] el0t_64_sync_handler+0xcc/0xe4 [ 222.884368][ T6218] el0t_64_sync+0x1a0/0x1a4 [ 222.885826][ T6218] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.887901][ T6218] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.069432][ T6220] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.070590][ T6220] CPU: 1 PID: 6220 Comm: syz.1.646 Not tainted syzkaller #0 [ 223.071808][ T6220] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.073382][ T6220] Call trace: [ 223.073905][ T6220] dump_backtrace+0x0/0x458 [ 223.074674][ T6220] show_stack+0x2c/0x3c [ 223.075337][ T6220] __dump_stack+0x30/0x40 [ 223.076006][ T6220] dump_stack_lvl+0xf4/0x15c [ 223.076716][ T6220] dump_stack+0x1c/0x5c [ 223.077385][ T6220] sysfs_create_dir_ns+0x244/0x264 [ 223.078204][ T6220] kobject_add_internal+0x5ac/0xc3c [ 223.079064][ T6220] kobject_init_and_add+0x124/0x190 [ 223.079953][ T6220] gfs2_sys_fs_add+0x200/0x41c [ 223.080766][ T6220] gfs2_fill_super+0xddc/0x1a18 [ 223.081524][ T6220] get_tree_bdev+0x358/0x544 [ 223.082247][ T6220] gfs2_get_tree+0x54/0x1b4 [ 223.082950][ T6220] vfs_get_tree+0x90/0x274 [ 223.083633][ T6220] do_new_mount+0x228/0x810 [ 223.084343][ T6220] path_mount+0x5bc/0x1008 [ 223.085099][ T6220] __arm64_sys_mount+0x514/0x5f0 [ 223.085928][ T6220] invoke_syscall+0x98/0x2b0 [ 223.086716][ T6220] el0_svc_common+0x138/0x258 [ 223.087545][ T6220] do_el0_svc+0x58/0x13c [ 223.088231][ T6220] el0_svc+0x78/0x1d0 [ 223.088871][ T6220] el0t_64_sync_handler+0xcc/0xe4 [ 223.089675][ T6220] el0t_64_sync+0x1a0/0x1a4 [ 223.091838][ T6220] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.094131][ T6220] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.285217][ T6222] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.286431][ T6222] CPU: 1 PID: 6222 Comm: syz.1.647 Not tainted syzkaller #0 [ 223.287592][ T6222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.289188][ T6222] Call trace: [ 223.289700][ T6222] dump_backtrace+0x0/0x458 [ 223.290396][ T6222] show_stack+0x2c/0x3c [ 223.291063][ T6222] __dump_stack+0x30/0x40 [ 223.291797][ T6222] dump_stack_lvl+0xf4/0x15c [ 223.292504][ T6222] dump_stack+0x1c/0x5c [ 223.293161][ T6222] sysfs_create_dir_ns+0x244/0x264 [ 223.293977][ T6222] kobject_add_internal+0x5ac/0xc3c [ 223.294746][ T6222] kobject_init_and_add+0x124/0x190 [ 223.295539][ T6222] gfs2_sys_fs_add+0x200/0x41c [ 223.296260][ T6222] gfs2_fill_super+0xddc/0x1a18 [ 223.297114][ T6222] get_tree_bdev+0x358/0x544 [ 223.297915][ T6222] gfs2_get_tree+0x54/0x1b4 [ 223.298663][ T6222] vfs_get_tree+0x90/0x274 [ 223.299374][ T6222] do_new_mount+0x228/0x810 [ 223.300117][ T6222] path_mount+0x5bc/0x1008 [ 223.300792][ T6222] __arm64_sys_mount+0x514/0x5f0 [ 223.301573][ T6222] invoke_syscall+0x98/0x2b0 [ 223.302349][ T6222] el0_svc_common+0x138/0x258 [ 223.303085][ T6222] do_el0_svc+0x58/0x13c [ 223.303757][ T6222] el0_svc+0x78/0x1d0 [ 223.304460][ T6222] el0t_64_sync_handler+0xcc/0xe4 [ 223.305243][ T6222] el0t_64_sync+0x1a0/0x1a4 [ 223.306879][ T6222] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.308989][ T6222] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.544107][ T4162] Bluetooth: hci2: command 0x0419 tx timeout [ 223.563840][ T6224] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.565063][ T6224] CPU: 0 PID: 6224 Comm: syz.1.648 Not tainted syzkaller #0 [ 223.566231][ T6224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.567806][ T6224] Call trace: [ 223.568328][ T6224] dump_backtrace+0x0/0x458 [ 223.569033][ T6224] show_stack+0x2c/0x3c [ 223.569759][ T6224] __dump_stack+0x30/0x40 [ 223.570484][ T6224] dump_stack_lvl+0xf4/0x15c [ 223.571237][ T6224] dump_stack+0x1c/0x5c [ 223.571931][ T6224] sysfs_create_dir_ns+0x244/0x264 [ 223.572743][ T6224] kobject_add_internal+0x5ac/0xc3c [ 223.573537][ T6224] kobject_init_and_add+0x124/0x190 [ 223.574330][ T6224] gfs2_sys_fs_add+0x200/0x41c [ 223.575145][ T6224] gfs2_fill_super+0xddc/0x1a18 [ 223.575923][ T6224] get_tree_bdev+0x358/0x544 [ 223.576666][ T6224] gfs2_get_tree+0x54/0x1b4 [ 223.577466][ T6224] vfs_get_tree+0x90/0x274 [ 223.578194][ T6224] do_new_mount+0x228/0x810 [ 223.578982][ T6224] path_mount+0x5bc/0x1008 [ 223.579729][ T6224] __arm64_sys_mount+0x514/0x5f0 [ 223.580543][ T6224] invoke_syscall+0x98/0x2b0 [ 223.581332][ T6224] el0_svc_common+0x138/0x258 [ 223.582123][ T6224] do_el0_svc+0x58/0x13c [ 223.582827][ T6224] el0_svc+0x78/0x1d0 [ 223.583468][ T6224] el0t_64_sync_handler+0xcc/0xe4 [ 223.584264][ T6224] el0t_64_sync+0x1a0/0x1a4 [ 223.586568][ T6224] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.588488][ T6224] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.765462][ T6226] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.766744][ T6226] CPU: 1 PID: 6226 Comm: syz.1.649 Not tainted syzkaller #0 [ 223.767876][ T6226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.769458][ T6226] Call trace: [ 223.769988][ T6226] dump_backtrace+0x0/0x458 [ 223.770756][ T6226] show_stack+0x2c/0x3c [ 223.771460][ T6226] __dump_stack+0x30/0x40 [ 223.772181][ T6226] dump_stack_lvl+0xf4/0x15c [ 223.772921][ T6226] dump_stack+0x1c/0x5c [ 223.773541][ T6226] sysfs_create_dir_ns+0x244/0x264 [ 223.774429][ T6226] kobject_add_internal+0x5ac/0xc3c [ 223.775311][ T6226] kobject_init_and_add+0x124/0x190 [ 223.776159][ T6226] gfs2_sys_fs_add+0x200/0x41c [ 223.776918][ T6226] gfs2_fill_super+0xddc/0x1a18 [ 223.777690][ T6226] get_tree_bdev+0x358/0x544 [ 223.778412][ T6226] gfs2_get_tree+0x54/0x1b4 [ 223.779131][ T6226] vfs_get_tree+0x90/0x274 [ 223.779877][ T6226] do_new_mount+0x228/0x810 [ 223.780624][ T6226] path_mount+0x5bc/0x1008 [ 223.781378][ T6226] __arm64_sys_mount+0x514/0x5f0 [ 223.782213][ T6226] invoke_syscall+0x98/0x2b0 [ 223.782924][ T6226] el0_svc_common+0x138/0x258 [ 223.783676][ T6226] do_el0_svc+0x58/0x13c [ 223.784413][ T6226] el0_svc+0x78/0x1d0 [ 223.785093][ T6226] el0t_64_sync_handler+0xcc/0xe4 [ 223.785970][ T6226] el0t_64_sync+0x1a0/0x1a4 [ 223.787324][ T6226] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.789368][ T6226] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.999880][ T6228] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.001305][ T6228] CPU: 0 PID: 6228 Comm: syz.1.650 Not tainted syzkaller #0 [ 224.002461][ T6228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.003996][ T6228] Call trace: [ 224.004520][ T6228] dump_backtrace+0x0/0x458 [ 224.005323][ T6228] show_stack+0x2c/0x3c [ 224.005994][ T6228] __dump_stack+0x30/0x40 [ 224.006711][ T6228] dump_stack_lvl+0xf4/0x15c [ 224.007444][ T6228] dump_stack+0x1c/0x5c [ 224.008102][ T6228] sysfs_create_dir_ns+0x244/0x264 [ 224.008991][ T6228] kobject_add_internal+0x5ac/0xc3c [ 224.009899][ T6228] kobject_init_and_add+0x124/0x190 [ 224.010728][ T6228] gfs2_sys_fs_add+0x200/0x41c [ 224.011501][ T6228] gfs2_fill_super+0xddc/0x1a18 [ 224.012319][ T6228] get_tree_bdev+0x358/0x544 [ 224.013080][ T6228] gfs2_get_tree+0x54/0x1b4 [ 224.013824][ T6228] vfs_get_tree+0x90/0x274 [ 224.014568][ T6228] do_new_mount+0x228/0x810 [ 224.015276][ T6228] path_mount+0x5bc/0x1008 [ 224.015998][ T6228] __arm64_sys_mount+0x514/0x5f0 [ 224.016810][ T6228] invoke_syscall+0x98/0x2b0 [ 224.017549][ T6228] el0_svc_common+0x138/0x258 [ 224.018346][ T6228] do_el0_svc+0x58/0x13c [ 224.019106][ T6228] el0_svc+0x78/0x1d0 [ 224.019790][ T6228] el0t_64_sync_handler+0xcc/0xe4 [ 224.020619][ T6228] el0t_64_sync+0x1a0/0x1a4 [ 224.022916][ T6228] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.025199][ T6228] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.215837][ T6230] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.217084][ T6230] CPU: 0 PID: 6230 Comm: syz.1.651 Not tainted syzkaller #0 [ 224.218225][ T6230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.219870][ T6230] Call trace: [ 224.220369][ T6230] dump_backtrace+0x0/0x458 [ 224.221074][ T6230] show_stack+0x2c/0x3c [ 224.221703][ T6230] __dump_stack+0x30/0x40 [ 224.222419][ T6230] dump_stack_lvl+0xf4/0x15c [ 224.223147][ T6230] dump_stack+0x1c/0x5c [ 224.223780][ T6230] sysfs_create_dir_ns+0x244/0x264 [ 224.224619][ T6230] kobject_add_internal+0x5ac/0xc3c [ 224.225453][ T6230] kobject_init_and_add+0x124/0x190 [ 224.226342][ T6230] gfs2_sys_fs_add+0x200/0x41c [ 224.227071][ T6230] gfs2_fill_super+0xddc/0x1a18 [ 224.227859][ T6230] get_tree_bdev+0x358/0x544 [ 224.228674][ T6230] gfs2_get_tree+0x54/0x1b4 [ 224.229406][ T6230] vfs_get_tree+0x90/0x274 [ 224.230129][ T6230] do_new_mount+0x228/0x810 [ 224.230894][ T6230] path_mount+0x5bc/0x1008 [ 224.231571][ T6230] __arm64_sys_mount+0x514/0x5f0 [ 224.232335][ T6230] invoke_syscall+0x98/0x2b0 [ 224.233065][ T6230] el0_svc_common+0x138/0x258 [ 224.233799][ T6230] do_el0_svc+0x58/0x13c [ 224.234428][ T6230] el0_svc+0x78/0x1d0 [ 224.235066][ T6230] el0t_64_sync_handler+0xcc/0xe4 [ 224.235810][ T6230] el0t_64_sync+0x1a0/0x1a4 [ 224.238153][ T6230] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.240339][ T6230] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:44 executed programs: 638 [ 224.419774][ T6232] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.420961][ T6232] CPU: 0 PID: 6232 Comm: syz.1.652 Not tainted syzkaller #0 [ 224.422155][ T6232] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.423728][ T6232] Call trace: [ 224.424292][ T6232] dump_backtrace+0x0/0x458 [ 224.425009][ T6232] show_stack+0x2c/0x3c [ 224.425683][ T6232] __dump_stack+0x30/0x40 [ 224.426385][ T6232] dump_stack_lvl+0xf4/0x15c [ 224.427148][ T6232] dump_stack+0x1c/0x5c [ 224.427760][ T6232] sysfs_create_dir_ns+0x244/0x264 [ 224.428537][ T6232] kobject_add_internal+0x5ac/0xc3c [ 224.429354][ T6232] kobject_init_and_add+0x124/0x190 [ 224.430163][ T6232] gfs2_sys_fs_add+0x200/0x41c [ 224.430899][ T6232] gfs2_fill_super+0xddc/0x1a18 [ 224.431695][ T6232] get_tree_bdev+0x358/0x544 [ 224.432413][ T6232] gfs2_get_tree+0x54/0x1b4 [ 224.433085][ T6232] vfs_get_tree+0x90/0x274 [ 224.433789][ T6232] do_new_mount+0x228/0x810 [ 224.434471][ T6232] path_mount+0x5bc/0x1008 [ 224.435173][ T6232] __arm64_sys_mount+0x514/0x5f0 [ 224.435980][ T6232] invoke_syscall+0x98/0x2b0 [ 224.436698][ T6232] el0_svc_common+0x138/0x258 [ 224.437528][ T6232] do_el0_svc+0x58/0x13c [ 224.438270][ T6232] el0_svc+0x78/0x1d0 [ 224.438910][ T6232] el0t_64_sync_handler+0xcc/0xe4 [ 224.439750][ T6232] el0t_64_sync+0x1a0/0x1a4 [ 224.441973][ T6232] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.443805][ T6232] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.680297][ T6234] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.681637][ T6234] CPU: 1 PID: 6234 Comm: syz.1.653 Not tainted syzkaller #0 [ 224.682749][ T6234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.684402][ T6234] Call trace: [ 224.684905][ T6234] dump_backtrace+0x0/0x458 [ 224.685663][ T6234] show_stack+0x2c/0x3c [ 224.686328][ T6234] __dump_stack+0x30/0x40 [ 224.687044][ T6234] dump_stack_lvl+0xf4/0x15c [ 224.687768][ T6234] dump_stack+0x1c/0x5c [ 224.688429][ T6234] sysfs_create_dir_ns+0x244/0x264 [ 224.689193][ T6234] kobject_add_internal+0x5ac/0xc3c [ 224.690029][ T6234] kobject_init_and_add+0x124/0x190 [ 224.690845][ T6234] gfs2_sys_fs_add+0x200/0x41c [ 224.691636][ T6234] gfs2_fill_super+0xddc/0x1a18 [ 224.692398][ T6234] get_tree_bdev+0x358/0x544 [ 224.693128][ T6234] gfs2_get_tree+0x54/0x1b4 [ 224.693801][ T6234] vfs_get_tree+0x90/0x274 [ 224.694495][ T6234] do_new_mount+0x228/0x810 [ 224.695321][ T6234] path_mount+0x5bc/0x1008 [ 224.696025][ T6234] __arm64_sys_mount+0x514/0x5f0 [ 224.696816][ T6234] invoke_syscall+0x98/0x2b0 [ 224.697555][ T6234] el0_svc_common+0x138/0x258 [ 224.698359][ T6234] do_el0_svc+0x58/0x13c [ 224.699076][ T6234] el0_svc+0x78/0x1d0 [ 224.699725][ T6234] el0t_64_sync_handler+0xcc/0xe4 [ 224.700533][ T6234] el0t_64_sync+0x1a0/0x1a4 [ 224.702295][ T6234] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.704594][ T6234] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.901172][ T6236] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.902420][ T6236] CPU: 1 PID: 6236 Comm: syz.1.654 Not tainted syzkaller #0 [ 224.903673][ T6236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.905425][ T6236] Call trace: [ 224.905944][ T6236] dump_backtrace+0x0/0x458 [ 224.906674][ T6236] show_stack+0x2c/0x3c [ 224.907418][ T6236] __dump_stack+0x30/0x40 [ 224.908162][ T6236] dump_stack_lvl+0xf4/0x15c [ 224.908895][ T6236] dump_stack+0x1c/0x5c [ 224.909564][ T6236] sysfs_create_dir_ns+0x244/0x264 [ 224.910390][ T6236] kobject_add_internal+0x5ac/0xc3c [ 224.911189][ T6236] kobject_init_and_add+0x124/0x190 [ 224.912091][ T6236] gfs2_sys_fs_add+0x200/0x41c [ 224.912901][ T6236] gfs2_fill_super+0xddc/0x1a18 [ 224.913768][ T6236] get_tree_bdev+0x358/0x544 [ 224.914573][ T6236] gfs2_get_tree+0x54/0x1b4 [ 224.915307][ T6236] vfs_get_tree+0x90/0x274 [ 224.916005][ T6236] do_new_mount+0x228/0x810 [ 224.916734][ T6236] path_mount+0x5bc/0x1008 [ 224.917481][ T6236] __arm64_sys_mount+0x514/0x5f0 [ 224.918362][ T6236] invoke_syscall+0x98/0x2b0 [ 224.919185][ T6236] el0_svc_common+0x138/0x258 [ 224.919995][ T6236] do_el0_svc+0x58/0x13c [ 224.920731][ T6236] el0_svc+0x78/0x1d0 [ 224.921501][ T6236] el0t_64_sync_handler+0xcc/0xe4 [ 224.922398][ T6236] el0t_64_sync+0x1a0/0x1a4 [ 224.924793][ T6236] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.926807][ T6236] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.062439][ T6238] set_capacity_and_notify: 15 callbacks suppressed [ 225.062448][ T6238] loop1: detected capacity change from 0 to 32768 [ 225.071596][ T6238] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.072775][ T6238] CPU: 0 PID: 6238 Comm: syz.1.655 Not tainted syzkaller #0 [ 225.073902][ T6238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.075528][ T6238] Call trace: [ 225.075999][ T6238] dump_backtrace+0x0/0x458 [ 225.076633][ T6238] show_stack+0x2c/0x3c [ 225.077203][ T6238] __dump_stack+0x30/0x40 [ 225.077829][ T6238] dump_stack_lvl+0xf4/0x15c [ 225.078521][ T6238] dump_stack+0x1c/0x5c [ 225.079157][ T6238] sysfs_create_dir_ns+0x244/0x264 [ 225.079912][ T6238] kobject_add_internal+0x5ac/0xc3c [ 225.080660][ T6238] kobject_init_and_add+0x124/0x190 [ 225.081390][ T6238] gfs2_sys_fs_add+0x200/0x41c [ 225.082142][ T6238] gfs2_fill_super+0xddc/0x1a18 [ 225.082917][ T6238] get_tree_bdev+0x358/0x544 [ 225.083692][ T6238] gfs2_get_tree+0x54/0x1b4 [ 225.084380][ T6238] vfs_get_tree+0x90/0x274 [ 225.085089][ T6238] do_new_mount+0x228/0x810 [ 225.085784][ T6238] path_mount+0x5bc/0x1008 [ 225.086501][ T6238] __arm64_sys_mount+0x514/0x5f0 [ 225.087333][ T6238] invoke_syscall+0x98/0x2b0 [ 225.088065][ T6238] el0_svc_common+0x138/0x258 [ 225.088810][ T6238] do_el0_svc+0x58/0x13c [ 225.089519][ T6238] el0_svc+0x78/0x1d0 [ 225.090179][ T6238] el0t_64_sync_handler+0xcc/0xe4 [ 225.090959][ T6238] el0t_64_sync+0x1a0/0x1a4 [ 225.091866][ T6238] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.093964][ T6238] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.225645][ T6240] loop1: detected capacity change from 0 to 32768 [ 225.276201][ T6240] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.277653][ T6240] CPU: 0 PID: 6240 Comm: syz.1.656 Not tainted syzkaller #0 [ 225.278896][ T6240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.280495][ T6240] Call trace: [ 225.281008][ T6240] dump_backtrace+0x0/0x458 [ 225.281738][ T6240] show_stack+0x2c/0x3c [ 225.282392][ T6240] __dump_stack+0x30/0x40 [ 225.283057][ T6240] dump_stack_lvl+0xf4/0x15c [ 225.283873][ T6240] dump_stack+0x1c/0x5c [ 225.284541][ T6240] sysfs_create_dir_ns+0x244/0x264 [ 225.285370][ T6240] kobject_add_internal+0x5ac/0xc3c [ 225.286228][ T6240] kobject_init_and_add+0x124/0x190 [ 225.287105][ T6240] gfs2_sys_fs_add+0x200/0x41c [ 225.287875][ T6240] gfs2_fill_super+0xddc/0x1a18 [ 225.288666][ T6240] get_tree_bdev+0x358/0x544 [ 225.289401][ T6240] gfs2_get_tree+0x54/0x1b4 [ 225.290098][ T6240] vfs_get_tree+0x90/0x274 [ 225.290802][ T6240] do_new_mount+0x228/0x810 [ 225.291493][ T6240] path_mount+0x5bc/0x1008 [ 225.292211][ T6240] __arm64_sys_mount+0x514/0x5f0 [ 225.293033][ T6240] invoke_syscall+0x98/0x2b0 [ 225.293762][ T6240] el0_svc_common+0x138/0x258 [ 225.294505][ T6240] do_el0_svc+0x58/0x13c [ 225.295178][ T6240] el0_svc+0x78/0x1d0 [ 225.295852][ T6240] el0t_64_sync_handler+0xcc/0xe4 [ 225.296630][ T6240] el0t_64_sync+0x1a0/0x1a4 [ 225.298807][ T6240] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.300857][ T6240] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.432661][ T6242] loop1: detected capacity change from 0 to 32768 [ 225.477143][ T6242] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.478312][ T6242] CPU: 0 PID: 6242 Comm: syz.1.657 Not tainted syzkaller #0 [ 225.479414][ T6242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.480874][ T6242] Call trace: [ 225.481388][ T6242] dump_backtrace+0x0/0x458 [ 225.482077][ T6242] show_stack+0x2c/0x3c [ 225.482688][ T6242] __dump_stack+0x30/0x40 [ 225.483340][ T6242] dump_stack_lvl+0xf4/0x15c [ 225.484007][ T6242] dump_stack+0x1c/0x5c [ 225.484680][ T6242] sysfs_create_dir_ns+0x244/0x264 [ 225.485443][ T6242] kobject_add_internal+0x5ac/0xc3c [ 225.486283][ T6242] kobject_init_and_add+0x124/0x190 [ 225.487163][ T6242] gfs2_sys_fs_add+0x200/0x41c [ 225.487969][ T6242] gfs2_fill_super+0xddc/0x1a18 [ 225.488747][ T6242] get_tree_bdev+0x358/0x544 [ 225.489513][ T6242] gfs2_get_tree+0x54/0x1b4 [ 225.490249][ T6242] vfs_get_tree+0x90/0x274 [ 225.490933][ T6242] do_new_mount+0x228/0x810 [ 225.491621][ T6242] path_mount+0x5bc/0x1008 [ 225.492323][ T6242] __arm64_sys_mount+0x514/0x5f0 [ 225.493053][ T6242] invoke_syscall+0x98/0x2b0 [ 225.493730][ T6242] el0_svc_common+0x138/0x258 [ 225.494432][ T6242] do_el0_svc+0x58/0x13c [ 225.495145][ T6242] el0_svc+0x78/0x1d0 [ 225.495772][ T6242] el0t_64_sync_handler+0xcc/0xe4 [ 225.496586][ T6242] el0t_64_sync+0x1a0/0x1a4 [ 225.498811][ T6242] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.500828][ T6242] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.632928][ T6244] loop1: detected capacity change from 0 to 32768 [ 225.695833][ T6244] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.697038][ T6244] CPU: 1 PID: 6244 Comm: syz.1.658 Not tainted syzkaller #0 [ 225.698184][ T6244] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.699789][ T6244] Call trace: [ 225.700280][ T6244] dump_backtrace+0x0/0x458 [ 225.700983][ T6244] show_stack+0x2c/0x3c [ 225.701643][ T6244] __dump_stack+0x30/0x40 [ 225.702352][ T6244] dump_stack_lvl+0xf4/0x15c [ 225.703027][ T6244] dump_stack+0x1c/0x5c [ 225.703698][ T6244] sysfs_create_dir_ns+0x244/0x264 [ 225.704471][ T6244] kobject_add_internal+0x5ac/0xc3c [ 225.705305][ T6244] kobject_init_and_add+0x124/0x190 [ 225.706114][ T6244] gfs2_sys_fs_add+0x200/0x41c [ 225.706836][ T6244] gfs2_fill_super+0xddc/0x1a18 [ 225.707613][ T6244] get_tree_bdev+0x358/0x544 [ 225.708416][ T6244] gfs2_get_tree+0x54/0x1b4 [ 225.709209][ T6244] vfs_get_tree+0x90/0x274 [ 225.709919][ T6244] do_new_mount+0x228/0x810 [ 225.710656][ T6244] path_mount+0x5bc/0x1008 [ 225.711369][ T6244] __arm64_sys_mount+0x514/0x5f0 [ 225.712156][ T6244] invoke_syscall+0x98/0x2b0 [ 225.712910][ T6244] el0_svc_common+0x138/0x258 [ 225.713656][ T6244] do_el0_svc+0x58/0x13c [ 225.714380][ T6244] el0_svc+0x78/0x1d0 [ 225.715033][ T6244] el0t_64_sync_handler+0xcc/0xe4 [ 225.715808][ T6244] el0t_64_sync+0x1a0/0x1a4 [ 225.716952][ T6244] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.718902][ T6244] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.875537][ T6246] loop1: detected capacity change from 0 to 32768 [ 225.938992][ T6246] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.940275][ T6246] CPU: 0 PID: 6246 Comm: syz.1.659 Not tainted syzkaller #0 [ 225.941499][ T6246] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.943081][ T6246] Call trace: [ 225.943594][ T6246] dump_backtrace+0x0/0x458 [ 225.944283][ T6246] show_stack+0x2c/0x3c [ 225.944962][ T6246] __dump_stack+0x30/0x40 [ 225.945685][ T6246] dump_stack_lvl+0xf4/0x15c [ 225.946410][ T6246] dump_stack+0x1c/0x5c [ 225.947062][ T6246] sysfs_create_dir_ns+0x244/0x264 [ 225.947851][ T6246] kobject_add_internal+0x5ac/0xc3c [ 225.948649][ T6246] kobject_init_and_add+0x124/0x190 [ 225.949472][ T6246] gfs2_sys_fs_add+0x200/0x41c [ 225.950189][ T6246] gfs2_fill_super+0xddc/0x1a18 [ 225.950983][ T6246] get_tree_bdev+0x358/0x544 [ 225.951773][ T6246] gfs2_get_tree+0x54/0x1b4 [ 225.952575][ T6246] vfs_get_tree+0x90/0x274 [ 225.953300][ T6246] do_new_mount+0x228/0x810 [ 225.954056][ T6246] path_mount+0x5bc/0x1008 [ 225.954814][ T6246] __arm64_sys_mount+0x514/0x5f0 [ 225.955629][ T6246] invoke_syscall+0x98/0x2b0 [ 225.956343][ T6246] el0_svc_common+0x138/0x258 [ 225.957181][ T6246] do_el0_svc+0x58/0x13c [ 225.957903][ T6246] el0_svc+0x78/0x1d0 [ 225.958594][ T6246] el0t_64_sync_handler+0xcc/0xe4 [ 225.959509][ T6246] el0t_64_sync+0x1a0/0x1a4 [ 225.961788][ T6246] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.963791][ T6246] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.099846][ T6248] loop1: detected capacity change from 0 to 32768 [ 226.108081][ T6248] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.109328][ T6248] CPU: 1 PID: 6248 Comm: syz.1.660 Not tainted syzkaller #0 [ 226.110528][ T6248] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.112206][ T6248] Call trace: [ 226.112744][ T6248] dump_backtrace+0x0/0x458 [ 226.113534][ T6248] show_stack+0x2c/0x3c [ 226.114163][ T6248] __dump_stack+0x30/0x40 [ 226.114822][ T6248] dump_stack_lvl+0xf4/0x15c [ 226.115565][ T6248] dump_stack+0x1c/0x5c [ 226.116202][ T6248] sysfs_create_dir_ns+0x244/0x264 [ 226.117021][ T6248] kobject_add_internal+0x5ac/0xc3c [ 226.117861][ T6248] kobject_init_and_add+0x124/0x190 [ 226.118643][ T6248] gfs2_sys_fs_add+0x200/0x41c [ 226.119407][ T6248] gfs2_fill_super+0xddc/0x1a18 [ 226.120179][ T6248] get_tree_bdev+0x358/0x544 [ 226.120958][ T6248] gfs2_get_tree+0x54/0x1b4 [ 226.121641][ T6248] vfs_get_tree+0x90/0x274 [ 226.122402][ T6248] do_new_mount+0x228/0x810 [ 226.123199][ T6248] path_mount+0x5bc/0x1008 [ 226.123902][ T6248] __arm64_sys_mount+0x514/0x5f0 [ 226.124733][ T6248] invoke_syscall+0x98/0x2b0 [ 226.125431][ T6248] el0_svc_common+0x138/0x258 [ 226.126207][ T6248] do_el0_svc+0x58/0x13c [ 226.126918][ T6248] el0_svc+0x78/0x1d0 [ 226.127566][ T6248] el0t_64_sync_handler+0xcc/0xe4 [ 226.128476][ T6248] el0t_64_sync+0x1a0/0x1a4 [ 226.130843][ T6248] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.132916][ T6248] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.325956][ T6250] loop1: detected capacity change from 0 to 32768 [ 226.445258][ T6250] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.446468][ T6250] CPU: 1 PID: 6250 Comm: syz.1.661 Not tainted syzkaller #0 [ 226.447597][ T6250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.449234][ T6250] Call trace: [ 226.449749][ T6250] dump_backtrace+0x0/0x458 [ 226.450476][ T6250] show_stack+0x2c/0x3c [ 226.451143][ T6250] __dump_stack+0x30/0x40 [ 226.451854][ T6250] dump_stack_lvl+0xf4/0x15c [ 226.452590][ T6250] dump_stack+0x1c/0x5c [ 226.453279][ T6250] sysfs_create_dir_ns+0x244/0x264 [ 226.454096][ T6250] kobject_add_internal+0x5ac/0xc3c [ 226.454915][ T6250] kobject_init_and_add+0x124/0x190 [ 226.455743][ T6250] gfs2_sys_fs_add+0x200/0x41c [ 226.456473][ T6250] gfs2_fill_super+0xddc/0x1a18 [ 226.457247][ T6250] get_tree_bdev+0x358/0x544 [ 226.457962][ T6250] gfs2_get_tree+0x54/0x1b4 [ 226.458700][ T6250] vfs_get_tree+0x90/0x274 [ 226.459452][ T6250] do_new_mount+0x228/0x810 [ 226.460216][ T6250] path_mount+0x5bc/0x1008 [ 226.460938][ T6250] __arm64_sys_mount+0x514/0x5f0 [ 226.461802][ T6250] invoke_syscall+0x98/0x2b0 [ 226.462607][ T6250] el0_svc_common+0x138/0x258 [ 226.463377][ T6250] do_el0_svc+0x58/0x13c [ 226.464075][ T6250] el0_svc+0x78/0x1d0 [ 226.464735][ T6250] el0t_64_sync_handler+0xcc/0xe4 [ 226.465576][ T6250] el0t_64_sync+0x1a0/0x1a4 [ 226.466486][ T6250] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.468498][ T6250] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.639379][ T6252] loop1: detected capacity change from 0 to 32768 [ 226.685394][ T6252] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.686645][ T6252] CPU: 1 PID: 6252 Comm: syz.1.662 Not tainted syzkaller #0 [ 226.687879][ T6252] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.689660][ T6252] Call trace: [ 226.690193][ T6252] dump_backtrace+0x0/0x458 [ 226.690918][ T6252] show_stack+0x2c/0x3c [ 226.691609][ T6252] __dump_stack+0x30/0x40 [ 226.692266][ T6252] dump_stack_lvl+0xf4/0x15c [ 226.692992][ T6252] dump_stack+0x1c/0x5c [ 226.693687][ T6252] sysfs_create_dir_ns+0x244/0x264 [ 226.694463][ T6252] kobject_add_internal+0x5ac/0xc3c [ 226.695273][ T6252] kobject_init_and_add+0x124/0x190 [ 226.696164][ T6252] gfs2_sys_fs_add+0x200/0x41c [ 226.696988][ T6252] gfs2_fill_super+0xddc/0x1a18 [ 226.697785][ T6252] get_tree_bdev+0x358/0x544 [ 226.698481][ T6252] gfs2_get_tree+0x54/0x1b4 [ 226.699211][ T6252] vfs_get_tree+0x90/0x274 [ 226.699961][ T6252] do_new_mount+0x228/0x810 [ 226.700725][ T6252] path_mount+0x5bc/0x1008 [ 226.701496][ T6252] __arm64_sys_mount+0x514/0x5f0 [ 226.702320][ T6252] invoke_syscall+0x98/0x2b0 [ 226.703090][ T6252] el0_svc_common+0x138/0x258 [ 226.703856][ T6252] do_el0_svc+0x58/0x13c [ 226.704621][ T6252] el0_svc+0x78/0x1d0 [ 226.705224][ T6252] el0t_64_sync_handler+0xcc/0xe4 [ 226.706027][ T6252] el0t_64_sync+0x1a0/0x1a4 [ 226.706998][ T6252] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.708999][ T6252] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.844883][ T6254] loop1: detected capacity change from 0 to 32768 [ 226.945232][ T6254] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.946408][ T6254] CPU: 1 PID: 6254 Comm: syz.1.663 Not tainted syzkaller #0 [ 226.947476][ T6254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.948986][ T6254] Call trace: [ 226.949468][ T6254] dump_backtrace+0x0/0x458 [ 226.950258][ T6254] show_stack+0x2c/0x3c [ 226.950972][ T6254] __dump_stack+0x30/0x40 [ 226.951667][ T6254] dump_stack_lvl+0xf4/0x15c [ 226.952381][ T6254] dump_stack+0x1c/0x5c [ 226.953090][ T6254] sysfs_create_dir_ns+0x244/0x264 [ 226.953920][ T6254] kobject_add_internal+0x5ac/0xc3c [ 226.954726][ T6254] kobject_init_and_add+0x124/0x190 [ 226.955530][ T6254] gfs2_sys_fs_add+0x200/0x41c [ 226.956304][ T6254] gfs2_fill_super+0xddc/0x1a18 [ 226.957079][ T6254] get_tree_bdev+0x358/0x544 [ 226.957807][ T6254] gfs2_get_tree+0x54/0x1b4 [ 226.958545][ T6254] vfs_get_tree+0x90/0x274 [ 226.959294][ T6254] do_new_mount+0x228/0x810 [ 226.960014][ T6254] path_mount+0x5bc/0x1008 [ 226.960690][ T6254] __arm64_sys_mount+0x514/0x5f0 [ 226.961494][ T6254] invoke_syscall+0x98/0x2b0 [ 226.962248][ T6254] el0_svc_common+0x138/0x258 [ 226.963003][ T6254] do_el0_svc+0x58/0x13c [ 226.963676][ T6254] el0_svc+0x78/0x1d0 [ 226.964350][ T6254] el0t_64_sync_handler+0xcc/0xe4 [ 226.965136][ T6254] el0t_64_sync+0x1a0/0x1a4 [ 226.967690][ T6254] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.969851][ T6254] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.102927][ T6256] loop1: detected capacity change from 0 to 32768 [ 227.145658][ T6256] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.146975][ T6256] CPU: 0 PID: 6256 Comm: syz.1.664 Not tainted syzkaller #0 [ 227.148171][ T6256] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.149807][ T6256] Call trace: [ 227.150360][ T6256] dump_backtrace+0x0/0x458 [ 227.151125][ T6256] show_stack+0x2c/0x3c [ 227.151766][ T6256] __dump_stack+0x30/0x40 [ 227.152527][ T6256] dump_stack_lvl+0xf4/0x15c [ 227.153223][ T6256] dump_stack+0x1c/0x5c [ 227.153821][ T6256] sysfs_create_dir_ns+0x244/0x264 [ 227.154607][ T6256] kobject_add_internal+0x5ac/0xc3c [ 227.155371][ T6256] kobject_init_and_add+0x124/0x190 [ 227.156145][ T6256] gfs2_sys_fs_add+0x200/0x41c [ 227.156875][ T6256] gfs2_fill_super+0xddc/0x1a18 [ 227.157633][ T6256] get_tree_bdev+0x358/0x544 [ 227.158377][ T6256] gfs2_get_tree+0x54/0x1b4 [ 227.159122][ T6256] vfs_get_tree+0x90/0x274 [ 227.159847][ T6256] do_new_mount+0x228/0x810 [ 227.160547][ T6256] path_mount+0x5bc/0x1008 [ 227.161330][ T6256] __arm64_sys_mount+0x514/0x5f0 [ 227.162160][ T6256] invoke_syscall+0x98/0x2b0 [ 227.162983][ T6256] el0_svc_common+0x138/0x258 [ 227.163805][ T6256] do_el0_svc+0x58/0x13c [ 227.164547][ T6256] el0_svc+0x78/0x1d0 [ 227.165155][ T6256] el0t_64_sync_handler+0xcc/0xe4 [ 227.165928][ T6256] el0t_64_sync+0x1a0/0x1a4 [ 227.167120][ T6256] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.169012][ T6256] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.355395][ T6258] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.356666][ T6258] CPU: 0 PID: 6258 Comm: syz.1.665 Not tainted syzkaller #0 [ 227.357792][ T6258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.359343][ T6258] Call trace: [ 227.359868][ T6258] dump_backtrace+0x0/0x458 [ 227.360671][ T6258] show_stack+0x2c/0x3c [ 227.361341][ T6258] __dump_stack+0x30/0x40 [ 227.362027][ T6258] dump_stack_lvl+0xf4/0x15c [ 227.362751][ T6258] dump_stack+0x1c/0x5c [ 227.363417][ T6258] sysfs_create_dir_ns+0x244/0x264 [ 227.364264][ T6258] kobject_add_internal+0x5ac/0xc3c [ 227.365034][ T6258] kobject_init_and_add+0x124/0x190 [ 227.365850][ T6258] gfs2_sys_fs_add+0x200/0x41c [ 227.366613][ T6258] gfs2_fill_super+0xddc/0x1a18 [ 227.367381][ T6258] get_tree_bdev+0x358/0x544 [ 227.368149][ T6258] gfs2_get_tree+0x54/0x1b4 [ 227.368876][ T6258] vfs_get_tree+0x90/0x274 [ 227.369669][ T6258] do_new_mount+0x228/0x810 [ 227.370424][ T6258] path_mount+0x5bc/0x1008 [ 227.371114][ T6258] __arm64_sys_mount+0x514/0x5f0 [ 227.371934][ T6258] invoke_syscall+0x98/0x2b0 [ 227.372703][ T6258] el0_svc_common+0x138/0x258 [ 227.373438][ T6258] do_el0_svc+0x58/0x13c [ 227.374119][ T6258] el0_svc+0x78/0x1d0 [ 227.374748][ T6258] el0t_64_sync_handler+0xcc/0xe4 [ 227.375510][ T6258] el0t_64_sync+0x1a0/0x1a4 [ 227.376470][ T6258] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.378562][ T6258] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.627839][ T6260] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.629179][ T6260] CPU: 0 PID: 6260 Comm: syz.1.666 Not tainted syzkaller #0 [ 227.630405][ T6260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.631984][ T6260] Call trace: [ 227.632462][ T6260] dump_backtrace+0x0/0x458 [ 227.633088][ T6260] show_stack+0x2c/0x3c [ 227.633711][ T6260] __dump_stack+0x30/0x40 [ 227.634375][ T6260] dump_stack_lvl+0xf4/0x15c [ 227.635072][ T6260] dump_stack+0x1c/0x5c [ 227.635694][ T6260] sysfs_create_dir_ns+0x244/0x264 [ 227.636455][ T6260] kobject_add_internal+0x5ac/0xc3c [ 227.637343][ T6260] kobject_init_and_add+0x124/0x190 [ 227.638178][ T6260] gfs2_sys_fs_add+0x200/0x41c [ 227.638926][ T6260] gfs2_fill_super+0xddc/0x1a18 [ 227.639717][ T6260] get_tree_bdev+0x358/0x544 [ 227.640449][ T6260] gfs2_get_tree+0x54/0x1b4 [ 227.641176][ T6260] vfs_get_tree+0x90/0x274 [ 227.641862][ T6260] do_new_mount+0x228/0x810 [ 227.642582][ T6260] path_mount+0x5bc/0x1008 [ 227.643266][ T6260] __arm64_sys_mount+0x514/0x5f0 [ 227.644013][ T6260] invoke_syscall+0x98/0x2b0 [ 227.644721][ T6260] el0_svc_common+0x138/0x258 [ 227.645426][ T6260] do_el0_svc+0x58/0x13c [ 227.646088][ T6260] el0_svc+0x78/0x1d0 [ 227.646713][ T6260] el0t_64_sync_handler+0xcc/0xe4 [ 227.647465][ T6260] el0t_64_sync+0x1a0/0x1a4 [ 227.648411][ T6260] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.650380][ T6260] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.792858][ T6262] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.794244][ T6262] CPU: 1 PID: 6262 Comm: syz.1.667 Not tainted syzkaller #0 [ 227.795402][ T6262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.797057][ T6262] Call trace: [ 227.797602][ T6262] dump_backtrace+0x0/0x458 [ 227.798332][ T6262] show_stack+0x2c/0x3c [ 227.799007][ T6262] __dump_stack+0x30/0x40 [ 227.799697][ T6262] dump_stack_lvl+0xf4/0x15c [ 227.800392][ T6262] dump_stack+0x1c/0x5c [ 227.801019][ T6262] sysfs_create_dir_ns+0x244/0x264 [ 227.801801][ T6262] kobject_add_internal+0x5ac/0xc3c [ 227.802540][ T6262] kobject_init_and_add+0x124/0x190 [ 227.803349][ T6262] gfs2_sys_fs_add+0x200/0x41c [ 227.804090][ T6262] gfs2_fill_super+0xddc/0x1a18 [ 227.804816][ T6262] get_tree_bdev+0x358/0x544 [ 227.805534][ T6262] gfs2_get_tree+0x54/0x1b4 [ 227.806229][ T6262] vfs_get_tree+0x90/0x274 [ 227.806921][ T6262] do_new_mount+0x228/0x810 [ 227.807637][ T6262] path_mount+0x5bc/0x1008 [ 227.808283][ T6262] __arm64_sys_mount+0x514/0x5f0 [ 227.809044][ T6262] invoke_syscall+0x98/0x2b0 [ 227.809752][ T6262] el0_svc_common+0x138/0x258 [ 227.810484][ T6262] do_el0_svc+0x58/0x13c [ 227.811156][ T6262] el0_svc+0x78/0x1d0 [ 227.811750][ T6262] el0t_64_sync_handler+0xcc/0xe4 [ 227.812535][ T6262] el0t_64_sync+0x1a0/0x1a4 [ 227.815855][ T6262] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.817880][ T6262] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.999501][ T6264] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.000724][ T6264] CPU: 0 PID: 6264 Comm: syz.1.668 Not tainted syzkaller #0 [ 228.001853][ T6264] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.003459][ T6264] Call trace: [ 228.003927][ T6264] dump_backtrace+0x0/0x458 [ 228.004605][ T6264] show_stack+0x2c/0x3c [ 228.005271][ T6264] __dump_stack+0x30/0x40 [ 228.005922][ T6264] dump_stack_lvl+0xf4/0x15c [ 228.006617][ T6264] dump_stack+0x1c/0x5c [ 228.007346][ T6264] sysfs_create_dir_ns+0x244/0x264 [ 228.008177][ T6264] kobject_add_internal+0x5ac/0xc3c [ 228.008995][ T6264] kobject_init_and_add+0x124/0x190 [ 228.009904][ T6264] gfs2_sys_fs_add+0x200/0x41c [ 228.010639][ T6264] gfs2_fill_super+0xddc/0x1a18 [ 228.011413][ T6264] get_tree_bdev+0x358/0x544 [ 228.012074][ T6264] gfs2_get_tree+0x54/0x1b4 [ 228.012785][ T6264] vfs_get_tree+0x90/0x274 [ 228.013468][ T6264] do_new_mount+0x228/0x810 [ 228.014242][ T6264] path_mount+0x5bc/0x1008 [ 228.014909][ T6264] __arm64_sys_mount+0x514/0x5f0 [ 228.015709][ T6264] invoke_syscall+0x98/0x2b0 [ 228.016384][ T6264] el0_svc_common+0x138/0x258 [ 228.017045][ T6264] do_el0_svc+0x58/0x13c [ 228.017707][ T6264] el0_svc+0x78/0x1d0 [ 228.018365][ T6264] el0t_64_sync_handler+0xcc/0xe4 [ 228.019188][ T6264] el0t_64_sync+0x1a0/0x1a4 [ 228.020133][ T6264] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.022152][ T6264] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.275283][ T6266] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.276506][ T6266] CPU: 1 PID: 6266 Comm: syz.1.669 Not tainted syzkaller #0 [ 228.277746][ T6266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.279256][ T6266] Call trace: [ 228.279752][ T6266] dump_backtrace+0x0/0x458 [ 228.280423][ T6266] show_stack+0x2c/0x3c [ 228.281057][ T6266] __dump_stack+0x30/0x40 [ 228.281704][ T6266] dump_stack_lvl+0xf4/0x15c [ 228.282418][ T6266] dump_stack+0x1c/0x5c [ 228.283056][ T6266] sysfs_create_dir_ns+0x244/0x264 [ 228.283832][ T6266] kobject_add_internal+0x5ac/0xc3c [ 228.284635][ T6266] kobject_init_and_add+0x124/0x190 [ 228.285455][ T6266] gfs2_sys_fs_add+0x200/0x41c [ 228.286223][ T6266] gfs2_fill_super+0xddc/0x1a18 [ 228.286996][ T6266] get_tree_bdev+0x358/0x544 [ 228.287710][ T6266] gfs2_get_tree+0x54/0x1b4 [ 228.288363][ T6266] vfs_get_tree+0x90/0x274 [ 228.289023][ T6266] do_new_mount+0x228/0x810 [ 228.289691][ T6266] path_mount+0x5bc/0x1008 [ 228.290362][ T6266] __arm64_sys_mount+0x514/0x5f0 [ 228.291136][ T6266] invoke_syscall+0x98/0x2b0 [ 228.291860][ T6266] el0_svc_common+0x138/0x258 [ 228.292607][ T6266] do_el0_svc+0x58/0x13c [ 228.293359][ T6266] el0_svc+0x78/0x1d0 [ 228.294058][ T6266] el0t_64_sync_handler+0xcc/0xe4 [ 228.294841][ T6266] el0t_64_sync+0x1a0/0x1a4 [ 228.297954][ T6266] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.299962][ T6266] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.475346][ T6268] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.476570][ T6268] CPU: 1 PID: 6268 Comm: syz.1.670 Not tainted syzkaller #0 [ 228.477756][ T6268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.479376][ T6268] Call trace: [ 228.479913][ T6268] dump_backtrace+0x0/0x458 [ 228.480669][ T6268] show_stack+0x2c/0x3c [ 228.481368][ T6268] __dump_stack+0x30/0x40 [ 228.482091][ T6268] dump_stack_lvl+0xf4/0x15c [ 228.482816][ T6268] dump_stack+0x1c/0x5c [ 228.483515][ T6268] sysfs_create_dir_ns+0x244/0x264 [ 228.484317][ T6268] kobject_add_internal+0x5ac/0xc3c [ 228.485130][ T6268] kobject_init_and_add+0x124/0x190 [ 228.486004][ T6268] gfs2_sys_fs_add+0x200/0x41c [ 228.486787][ T6268] gfs2_fill_super+0xddc/0x1a18 [ 228.487519][ T6268] get_tree_bdev+0x358/0x544 [ 228.488182][ T6268] gfs2_get_tree+0x54/0x1b4 [ 228.488922][ T6268] vfs_get_tree+0x90/0x274 [ 228.489693][ T6268] do_new_mount+0x228/0x810 [ 228.490471][ T6268] path_mount+0x5bc/0x1008 [ 228.491223][ T6268] __arm64_sys_mount+0x514/0x5f0 [ 228.492075][ T6268] invoke_syscall+0x98/0x2b0 [ 228.492870][ T6268] el0_svc_common+0x138/0x258 [ 228.493657][ T6268] do_el0_svc+0x58/0x13c [ 228.494339][ T6268] el0_svc+0x78/0x1d0 [ 228.495037][ T6268] el0t_64_sync_handler+0xcc/0xe4 [ 228.495850][ T6268] el0t_64_sync+0x1a0/0x1a4 [ 228.498274][ T6268] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.500257][ T6268] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.735507][ T6270] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.736736][ T6270] CPU: 1 PID: 6270 Comm: syz.1.671 Not tainted syzkaller #0 [ 228.737814][ T6270] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.739391][ T6270] Call trace: [ 228.739885][ T6270] dump_backtrace+0x0/0x458 [ 228.740617][ T6270] show_stack+0x2c/0x3c [ 228.741245][ T6270] __dump_stack+0x30/0x40 [ 228.741881][ T6270] dump_stack_lvl+0xf4/0x15c [ 228.742666][ T6270] dump_stack+0x1c/0x5c [ 228.743298][ T6270] sysfs_create_dir_ns+0x244/0x264 [ 228.744111][ T6270] kobject_add_internal+0x5ac/0xc3c [ 228.744933][ T6270] kobject_init_and_add+0x124/0x190 [ 228.745759][ T6270] gfs2_sys_fs_add+0x200/0x41c [ 228.746538][ T6270] gfs2_fill_super+0xddc/0x1a18 [ 228.747249][ T6270] get_tree_bdev+0x358/0x544 [ 228.747944][ T6270] gfs2_get_tree+0x54/0x1b4 [ 228.748631][ T6270] vfs_get_tree+0x90/0x274 [ 228.749324][ T6270] do_new_mount+0x228/0x810 [ 228.750026][ T6270] path_mount+0x5bc/0x1008 [ 228.750697][ T6270] __arm64_sys_mount+0x514/0x5f0 [ 228.751408][ T6270] invoke_syscall+0x98/0x2b0 [ 228.752100][ T6270] el0_svc_common+0x138/0x258 [ 228.752800][ T6270] do_el0_svc+0x58/0x13c [ 228.753440][ T6270] el0_svc+0x78/0x1d0 [ 228.754098][ T6270] el0t_64_sync_handler+0xcc/0xe4 [ 228.754873][ T6270] el0t_64_sync+0x1a0/0x1a4 [ 228.757779][ T6270] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.759787][ T6270] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.958492][ T6272] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.959710][ T6272] CPU: 0 PID: 6272 Comm: syz.1.672 Not tainted syzkaller #0 [ 228.960853][ T6272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.962529][ T6272] Call trace: [ 228.963020][ T6272] dump_backtrace+0x0/0x458 [ 228.963741][ T6272] show_stack+0x2c/0x3c [ 228.964469][ T6272] __dump_stack+0x30/0x40 [ 228.965195][ T6272] dump_stack_lvl+0xf4/0x15c [ 228.965951][ T6272] dump_stack+0x1c/0x5c [ 228.966659][ T6272] sysfs_create_dir_ns+0x244/0x264 [ 228.967447][ T6272] kobject_add_internal+0x5ac/0xc3c [ 228.968299][ T6272] kobject_init_and_add+0x124/0x190 [ 228.969144][ T6272] gfs2_sys_fs_add+0x200/0x41c [ 228.969936][ T6272] gfs2_fill_super+0xddc/0x1a18 [ 228.970775][ T6272] get_tree_bdev+0x358/0x544 [ 228.971561][ T6272] gfs2_get_tree+0x54/0x1b4 [ 228.972310][ T6272] vfs_get_tree+0x90/0x274 [ 228.973059][ T6272] do_new_mount+0x228/0x810 [ 228.973820][ T6272] path_mount+0x5bc/0x1008 [ 228.974532][ T6272] __arm64_sys_mount+0x514/0x5f0 [ 228.975388][ T6272] invoke_syscall+0x98/0x2b0 [ 228.976120][ T6272] el0_svc_common+0x138/0x258 [ 228.976830][ T6272] do_el0_svc+0x58/0x13c [ 228.977559][ T6272] el0_svc+0x78/0x1d0 [ 228.978212][ T6272] el0t_64_sync_handler+0xcc/0xe4 [ 228.979077][ T6272] el0t_64_sync+0x1a0/0x1a4 [ 228.979961][ T6272] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.981909][ T6272] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.235409][ T6274] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.236594][ T6274] CPU: 1 PID: 6274 Comm: syz.1.673 Not tainted syzkaller #0 [ 229.237653][ T6274] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.239136][ T6274] Call trace: [ 229.239661][ T6274] dump_backtrace+0x0/0x458 [ 229.240390][ T6274] show_stack+0x2c/0x3c [ 229.241118][ T6274] __dump_stack+0x30/0x40 [ 229.241846][ T6274] dump_stack_lvl+0xf4/0x15c [ 229.242588][ T6274] dump_stack+0x1c/0x5c [ 229.243264][ T6274] sysfs_create_dir_ns+0x244/0x264 [ 229.244061][ T6274] kobject_add_internal+0x5ac/0xc3c [ 229.244991][ T6274] kobject_init_and_add+0x124/0x190 [ 229.245876][ T6274] gfs2_sys_fs_add+0x200/0x41c [ 229.246669][ T6274] gfs2_fill_super+0xddc/0x1a18 [ 229.247476][ T6274] get_tree_bdev+0x358/0x544 [ 229.248205][ T6274] gfs2_get_tree+0x54/0x1b4 [ 229.248899][ T6274] vfs_get_tree+0x90/0x274 [ 229.249629][ T6274] do_new_mount+0x228/0x810 [ 229.250387][ T6274] path_mount+0x5bc/0x1008 [ 229.251132][ T6274] __arm64_sys_mount+0x514/0x5f0 [ 229.251929][ T6274] invoke_syscall+0x98/0x2b0 [ 229.252698][ T6274] el0_svc_common+0x138/0x258 [ 229.253524][ T6274] do_el0_svc+0x58/0x13c [ 229.254225][ T6274] el0_svc+0x78/0x1d0 [ 229.254927][ T6274] el0t_64_sync_handler+0xcc/0xe4 [ 229.255801][ T6274] el0t_64_sync+0x1a0/0x1a4 [ 229.257129][ T6274] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.259184][ T6274] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:49 executed programs: 660 [ 229.442008][ T6276] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.443205][ T6276] CPU: 1 PID: 6276 Comm: syz.1.674 Not tainted syzkaller #0 [ 229.444356][ T6276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.445960][ T6276] Call trace: [ 229.446507][ T6276] dump_backtrace+0x0/0x458 [ 229.447252][ T6276] show_stack+0x2c/0x3c [ 229.447903][ T6276] __dump_stack+0x30/0x40 [ 229.448609][ T6276] dump_stack_lvl+0xf4/0x15c [ 229.449430][ T6276] dump_stack+0x1c/0x5c [ 229.450149][ T6276] sysfs_create_dir_ns+0x244/0x264 [ 229.451017][ T6276] kobject_add_internal+0x5ac/0xc3c [ 229.451904][ T6276] kobject_init_and_add+0x124/0x190 [ 229.452794][ T6276] gfs2_sys_fs_add+0x200/0x41c [ 229.453560][ T6276] gfs2_fill_super+0xddc/0x1a18 [ 229.454381][ T6276] get_tree_bdev+0x358/0x544 [ 229.455163][ T6276] gfs2_get_tree+0x54/0x1b4 [ 229.455926][ T6276] vfs_get_tree+0x90/0x274 [ 229.456654][ T6276] do_new_mount+0x228/0x810 [ 229.457383][ T6276] path_mount+0x5bc/0x1008 [ 229.458122][ T6276] __arm64_sys_mount+0x514/0x5f0 [ 229.458955][ T6276] invoke_syscall+0x98/0x2b0 [ 229.459689][ T6276] el0_svc_common+0x138/0x258 [ 229.460458][ T6276] do_el0_svc+0x58/0x13c [ 229.461153][ T6276] el0_svc+0x78/0x1d0 [ 229.461783][ T6276] el0t_64_sync_handler+0xcc/0xe4 [ 229.462618][ T6276] el0t_64_sync+0x1a0/0x1a4 [ 229.463600][ T6276] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.465730][ T6276] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.699232][ T6278] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.700349][ T6278] CPU: 1 PID: 6278 Comm: syz.1.675 Not tainted syzkaller #0 [ 229.701450][ T6278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.703104][ T6278] Call trace: [ 229.703584][ T6278] dump_backtrace+0x0/0x458 [ 229.704320][ T6278] show_stack+0x2c/0x3c [ 229.704990][ T6278] __dump_stack+0x30/0x40 [ 229.705723][ T6278] dump_stack_lvl+0xf4/0x15c [ 229.706455][ T6278] dump_stack+0x1c/0x5c [ 229.707157][ T6278] sysfs_create_dir_ns+0x244/0x264 [ 229.708033][ T6278] kobject_add_internal+0x5ac/0xc3c [ 229.708942][ T6278] kobject_init_and_add+0x124/0x190 [ 229.709771][ T6278] gfs2_sys_fs_add+0x200/0x41c [ 229.710579][ T6278] gfs2_fill_super+0xddc/0x1a18 [ 229.711366][ T6278] get_tree_bdev+0x358/0x544 [ 229.712130][ T6278] gfs2_get_tree+0x54/0x1b4 [ 229.712879][ T6278] vfs_get_tree+0x90/0x274 [ 229.713638][ T6278] do_new_mount+0x228/0x810 [ 229.714404][ T6278] path_mount+0x5bc/0x1008 [ 229.715152][ T6278] __arm64_sys_mount+0x514/0x5f0 [ 229.715954][ T6278] invoke_syscall+0x98/0x2b0 [ 229.716754][ T6278] el0_svc_common+0x138/0x258 [ 229.717500][ T6278] do_el0_svc+0x58/0x13c [ 229.718175][ T6278] el0_svc+0x78/0x1d0 [ 229.718847][ T6278] el0t_64_sync_handler+0xcc/0xe4 [ 229.719667][ T6278] el0t_64_sync+0x1a0/0x1a4 [ 229.721301][ T6278] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.723359][ T6278] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.866421][ T6280] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.867595][ T6280] CPU: 0 PID: 6280 Comm: syz.1.676 Not tainted syzkaller #0 [ 229.868655][ T6280] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.870215][ T6280] Call trace: [ 229.870691][ T6280] dump_backtrace+0x0/0x458 [ 229.871404][ T6280] show_stack+0x2c/0x3c [ 229.872088][ T6280] __dump_stack+0x30/0x40 [ 229.872779][ T6280] dump_stack_lvl+0xf4/0x15c [ 229.873502][ T6280] dump_stack+0x1c/0x5c [ 229.874160][ T6280] sysfs_create_dir_ns+0x244/0x264 [ 229.874986][ T6280] kobject_add_internal+0x5ac/0xc3c [ 229.875807][ T6280] kobject_init_and_add+0x124/0x190 [ 229.876680][ T6280] gfs2_sys_fs_add+0x200/0x41c [ 229.877418][ T6280] gfs2_fill_super+0xddc/0x1a18 [ 229.878178][ T6280] get_tree_bdev+0x358/0x544 [ 229.878850][ T6280] gfs2_get_tree+0x54/0x1b4 [ 229.879582][ T6280] vfs_get_tree+0x90/0x274 [ 229.880324][ T6280] do_new_mount+0x228/0x810 [ 229.881013][ T6280] path_mount+0x5bc/0x1008 [ 229.881650][ T6280] __arm64_sys_mount+0x514/0x5f0 [ 229.882447][ T6280] invoke_syscall+0x98/0x2b0 [ 229.883217][ T6280] el0_svc_common+0x138/0x258 [ 229.884019][ T6280] do_el0_svc+0x58/0x13c [ 229.884723][ T6280] el0_svc+0x78/0x1d0 [ 229.885334][ T6280] el0t_64_sync_handler+0xcc/0xe4 [ 229.886167][ T6280] el0t_64_sync+0x1a0/0x1a4 [ 229.886984][ T6280] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.889009][ T6280] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.030867][ T6282] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.032071][ T6282] CPU: 1 PID: 6282 Comm: syz.1.677 Not tainted syzkaller #0 [ 230.033291][ T6282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.034967][ T6282] Call trace: [ 230.035473][ T6282] dump_backtrace+0x0/0x458 [ 230.036142][ T6282] show_stack+0x2c/0x3c [ 230.036769][ T6282] __dump_stack+0x30/0x40 [ 230.037479][ T6282] dump_stack_lvl+0xf4/0x15c [ 230.038227][ T6282] dump_stack+0x1c/0x5c [ 230.038885][ T6282] sysfs_create_dir_ns+0x244/0x264 [ 230.039611][ T6282] kobject_add_internal+0x5ac/0xc3c [ 230.040500][ T6282] kobject_init_and_add+0x124/0x190 [ 230.041341][ T6282] gfs2_sys_fs_add+0x200/0x41c [ 230.042149][ T6282] gfs2_fill_super+0xddc/0x1a18 [ 230.042903][ T6282] get_tree_bdev+0x358/0x544 [ 230.043627][ T6282] gfs2_get_tree+0x54/0x1b4 [ 230.044325][ T6282] vfs_get_tree+0x90/0x274 [ 230.045012][ T6282] do_new_mount+0x228/0x810 [ 230.045701][ T6282] path_mount+0x5bc/0x1008 [ 230.046342][ T6282] __arm64_sys_mount+0x514/0x5f0 [ 230.047209][ T6282] invoke_syscall+0x98/0x2b0 [ 230.047998][ T6282] el0_svc_common+0x138/0x258 [ 230.048808][ T6282] do_el0_svc+0x58/0x13c [ 230.049520][ T6282] el0_svc+0x78/0x1d0 [ 230.050200][ T6282] el0t_64_sync_handler+0xcc/0xe4 [ 230.051037][ T6282] el0t_64_sync+0x1a0/0x1a4 [ 230.053241][ T6282] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.055611][ T6282] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.196305][ T6284] set_capacity_and_notify: 13 callbacks suppressed [ 230.196315][ T6284] loop1: detected capacity change from 0 to 32768 [ 230.201926][ T6284] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.203129][ T6284] CPU: 1 PID: 6284 Comm: syz.1.678 Not tainted syzkaller #0 [ 230.204323][ T6284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.205932][ T6284] Call trace: [ 230.206460][ T6284] dump_backtrace+0x0/0x458 [ 230.207201][ T6284] show_stack+0x2c/0x3c [ 230.207881][ T6284] __dump_stack+0x30/0x40 [ 230.208523][ T6284] dump_stack_lvl+0xf4/0x15c [ 230.209211][ T6284] dump_stack+0x1c/0x5c [ 230.209888][ T6284] sysfs_create_dir_ns+0x244/0x264 [ 230.210760][ T6284] kobject_add_internal+0x5ac/0xc3c [ 230.211649][ T6284] kobject_init_and_add+0x124/0x190 [ 230.212523][ T6284] gfs2_sys_fs_add+0x200/0x41c [ 230.213354][ T6284] gfs2_fill_super+0xddc/0x1a18 [ 230.214166][ T6284] get_tree_bdev+0x358/0x544 [ 230.214933][ T6284] gfs2_get_tree+0x54/0x1b4 [ 230.215680][ T6284] vfs_get_tree+0x90/0x274 [ 230.216360][ T6284] do_new_mount+0x228/0x810 [ 230.217097][ T6284] path_mount+0x5bc/0x1008 [ 230.217876][ T6284] __arm64_sys_mount+0x514/0x5f0 [ 230.218681][ T6284] invoke_syscall+0x98/0x2b0 [ 230.219457][ T6284] el0_svc_common+0x138/0x258 [ 230.220242][ T6284] do_el0_svc+0x58/0x13c [ 230.220951][ T6284] el0_svc+0x78/0x1d0 [ 230.221571][ T6284] el0t_64_sync_handler+0xcc/0xe4 [ 230.222377][ T6284] el0t_64_sync+0x1a0/0x1a4 [ 230.225804][ T6284] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.227826][ T6284] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.362202][ T6286] loop1: detected capacity change from 0 to 32768 [ 230.366224][ T6286] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.368406][ T6286] CPU: 1 PID: 6286 Comm: syz.1.679 Not tainted syzkaller #0 [ 230.369494][ T6286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.371032][ T6286] Call trace: [ 230.371520][ T6286] dump_backtrace+0x0/0x458 [ 230.372192][ T6286] show_stack+0x2c/0x3c [ 230.372820][ T6286] __dump_stack+0x30/0x40 [ 230.373560][ T6286] dump_stack_lvl+0xf4/0x15c [ 230.374352][ T6286] dump_stack+0x1c/0x5c [ 230.375024][ T6286] sysfs_create_dir_ns+0x244/0x264 [ 230.375877][ T6286] kobject_add_internal+0x5ac/0xc3c [ 230.376741][ T6286] kobject_init_and_add+0x124/0x190 [ 230.377616][ T6286] gfs2_sys_fs_add+0x200/0x41c [ 230.378464][ T6286] gfs2_fill_super+0xddc/0x1a18 [ 230.379278][ T6286] get_tree_bdev+0x358/0x544 [ 230.380068][ T6286] gfs2_get_tree+0x54/0x1b4 [ 230.380791][ T6286] vfs_get_tree+0x90/0x274 [ 230.381481][ T6286] do_new_mount+0x228/0x810 [ 230.382217][ T6286] path_mount+0x5bc/0x1008 [ 230.382916][ T6286] __arm64_sys_mount+0x514/0x5f0 [ 230.383740][ T6286] invoke_syscall+0x98/0x2b0 [ 230.384507][ T6286] el0_svc_common+0x138/0x258 [ 230.385329][ T6286] do_el0_svc+0x58/0x13c [ 230.386063][ T6286] el0_svc+0x78/0x1d0 [ 230.386733][ T6286] el0t_64_sync_handler+0xcc/0xe4 [ 230.387596][ T6286] el0t_64_sync+0x1a0/0x1a4 [ 230.389843][ T6286] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.391901][ T6286] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.529666][ T6288] loop1: detected capacity change from 0 to 32768 [ 230.537561][ T6288] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.538764][ T6288] CPU: 0 PID: 6288 Comm: syz.1.680 Not tainted syzkaller #0 [ 230.539937][ T6288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.541492][ T6288] Call trace: [ 230.541986][ T6288] dump_backtrace+0x0/0x458 [ 230.542712][ T6288] show_stack+0x2c/0x3c [ 230.543326][ T6288] __dump_stack+0x30/0x40 [ 230.544073][ T6288] dump_stack_lvl+0xf4/0x15c [ 230.544840][ T6288] dump_stack+0x1c/0x5c [ 230.545503][ T6288] sysfs_create_dir_ns+0x244/0x264 [ 230.546324][ T6288] kobject_add_internal+0x5ac/0xc3c [ 230.547208][ T6288] kobject_init_and_add+0x124/0x190 [ 230.548092][ T6288] gfs2_sys_fs_add+0x200/0x41c [ 230.548857][ T6288] gfs2_fill_super+0xddc/0x1a18 [ 230.549624][ T6288] get_tree_bdev+0x358/0x544 [ 230.550414][ T6288] gfs2_get_tree+0x54/0x1b4 [ 230.551164][ T6288] vfs_get_tree+0x90/0x274 [ 230.551847][ T6288] do_new_mount+0x228/0x810 [ 230.552587][ T6288] path_mount+0x5bc/0x1008 [ 230.553273][ T6288] __arm64_sys_mount+0x514/0x5f0 [ 230.554057][ T6288] invoke_syscall+0x98/0x2b0 [ 230.554810][ T6288] el0_svc_common+0x138/0x258 [ 230.555536][ T6288] do_el0_svc+0x58/0x13c [ 230.556213][ T6288] el0_svc+0x78/0x1d0 [ 230.556830][ T6288] el0t_64_sync_handler+0xcc/0xe4 [ 230.557592][ T6288] el0t_64_sync+0x1a0/0x1a4 [ 230.558453][ T6288] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.560350][ T6288] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.702290][ T6290] loop1: detected capacity change from 0 to 32768 [ 230.710306][ T6290] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.711561][ T6290] CPU: 1 PID: 6290 Comm: syz.1.681 Not tainted syzkaller #0 [ 230.712764][ T6290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.714377][ T6290] Call trace: [ 230.714916][ T6290] dump_backtrace+0x0/0x458 [ 230.715634][ T6290] show_stack+0x2c/0x3c [ 230.716225][ T6290] __dump_stack+0x30/0x40 [ 230.716917][ T6290] dump_stack_lvl+0xf4/0x15c [ 230.717663][ T6290] dump_stack+0x1c/0x5c [ 230.718330][ T6290] sysfs_create_dir_ns+0x244/0x264 [ 230.719126][ T6290] kobject_add_internal+0x5ac/0xc3c [ 230.719975][ T6290] kobject_init_and_add+0x124/0x190 [ 230.720823][ T6290] gfs2_sys_fs_add+0x200/0x41c [ 230.721667][ T6290] gfs2_fill_super+0xddc/0x1a18 [ 230.722474][ T6290] get_tree_bdev+0x358/0x544 [ 230.723253][ T6290] gfs2_get_tree+0x54/0x1b4 [ 230.724000][ T6290] vfs_get_tree+0x90/0x274 [ 230.724725][ T6290] do_new_mount+0x228/0x810 [ 230.725486][ T6290] path_mount+0x5bc/0x1008 [ 230.726240][ T6290] __arm64_sys_mount+0x514/0x5f0 [ 230.727005][ T6290] invoke_syscall+0x98/0x2b0 [ 230.727684][ T6290] el0_svc_common+0x138/0x258 [ 230.728486][ T6290] do_el0_svc+0x58/0x13c [ 230.729202][ T6290] el0_svc+0x78/0x1d0 [ 230.729830][ T6290] el0t_64_sync_handler+0xcc/0xe4 [ 230.730599][ T6290] el0t_64_sync+0x1a0/0x1a4 [ 230.731601][ T6290] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.733607][ T6290] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.867303][ T6292] loop1: detected capacity change from 0 to 32768 [ 230.979811][ T6292] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.981077][ T6292] CPU: 0 PID: 6292 Comm: syz.1.682 Not tainted syzkaller #0 [ 230.982207][ T6292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.983783][ T6292] Call trace: [ 230.984305][ T6292] dump_backtrace+0x0/0x458 [ 230.985061][ T6292] show_stack+0x2c/0x3c [ 230.985703][ T6292] __dump_stack+0x30/0x40 [ 230.986383][ T6292] dump_stack_lvl+0xf4/0x15c [ 230.987089][ T6292] dump_stack+0x1c/0x5c [ 230.987717][ T6292] sysfs_create_dir_ns+0x244/0x264 [ 230.988489][ T6292] kobject_add_internal+0x5ac/0xc3c [ 230.989267][ T6292] kobject_init_and_add+0x124/0x190 [ 230.990160][ T6292] gfs2_sys_fs_add+0x200/0x41c [ 230.990914][ T6292] gfs2_fill_super+0xddc/0x1a18 [ 230.991715][ T6292] get_tree_bdev+0x358/0x544 [ 230.992452][ T6292] gfs2_get_tree+0x54/0x1b4 [ 230.993175][ T6292] vfs_get_tree+0x90/0x274 [ 230.993898][ T6292] do_new_mount+0x228/0x810 [ 230.994632][ T6292] path_mount+0x5bc/0x1008 [ 230.995400][ T6292] __arm64_sys_mount+0x514/0x5f0 [ 230.996199][ T6292] invoke_syscall+0x98/0x2b0 [ 230.996937][ T6292] el0_svc_common+0x138/0x258 [ 230.997680][ T6292] do_el0_svc+0x58/0x13c [ 230.998372][ T6292] el0_svc+0x78/0x1d0 [ 230.998973][ T6292] el0t_64_sync_handler+0xcc/0xe4 [ 230.999776][ T6292] el0t_64_sync+0x1a0/0x1a4 [ 231.001700][ T6292] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.003830][ T6292] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.137932][ T6294] loop1: detected capacity change from 0 to 32768 [ 231.185471][ T6294] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.186696][ T6294] CPU: 0 PID: 6294 Comm: syz.1.683 Not tainted syzkaller #0 [ 231.187802][ T6294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.189316][ T6294] Call trace: [ 231.189802][ T6294] dump_backtrace+0x0/0x458 [ 231.190498][ T6294] show_stack+0x2c/0x3c [ 231.191137][ T6294] __dump_stack+0x30/0x40 [ 231.191828][ T6294] dump_stack_lvl+0xf4/0x15c [ 231.192587][ T6294] dump_stack+0x1c/0x5c [ 231.193219][ T6294] sysfs_create_dir_ns+0x244/0x264 [ 231.194042][ T6294] kobject_add_internal+0x5ac/0xc3c [ 231.194905][ T6294] kobject_init_and_add+0x124/0x190 [ 231.195723][ T6294] gfs2_sys_fs_add+0x200/0x41c [ 231.196486][ T6294] gfs2_fill_super+0xddc/0x1a18 [ 231.197251][ T6294] get_tree_bdev+0x358/0x544 [ 231.197998][ T6294] gfs2_get_tree+0x54/0x1b4 [ 231.198757][ T6294] vfs_get_tree+0x90/0x274 [ 231.199519][ T6294] do_new_mount+0x228/0x810 [ 231.200243][ T6294] path_mount+0x5bc/0x1008 [ 231.200987][ T6294] __arm64_sys_mount+0x514/0x5f0 [ 231.201776][ T6294] invoke_syscall+0x98/0x2b0 [ 231.202505][ T6294] el0_svc_common+0x138/0x258 [ 231.203223][ T6294] do_el0_svc+0x58/0x13c [ 231.203824][ T6294] el0_svc+0x78/0x1d0 [ 231.204440][ T6294] el0t_64_sync_handler+0xcc/0xe4 [ 231.205183][ T6294] el0t_64_sync+0x1a0/0x1a4 [ 231.207436][ T6294] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.209460][ T6294] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.353922][ T6296] loop1: detected capacity change from 0 to 32768 [ 231.413216][ T6296] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.414827][ T6296] CPU: 1 PID: 6296 Comm: syz.1.684 Not tainted syzkaller #0 [ 231.415979][ T6296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.417563][ T6296] Call trace: [ 231.418069][ T6296] dump_backtrace+0x0/0x458 [ 231.418726][ T6296] show_stack+0x2c/0x3c [ 231.419353][ T6296] __dump_stack+0x30/0x40 [ 231.419993][ T6296] dump_stack_lvl+0xf4/0x15c [ 231.420654][ T6296] dump_stack+0x1c/0x5c [ 231.421282][ T6296] sysfs_create_dir_ns+0x244/0x264 [ 231.422073][ T6296] kobject_add_internal+0x5ac/0xc3c [ 231.422858][ T6296] kobject_init_and_add+0x124/0x190 [ 231.423708][ T6296] gfs2_sys_fs_add+0x200/0x41c [ 231.424482][ T6296] gfs2_fill_super+0xddc/0x1a18 [ 231.425299][ T6296] get_tree_bdev+0x358/0x544 [ 231.426098][ T6296] gfs2_get_tree+0x54/0x1b4 [ 231.426842][ T6296] vfs_get_tree+0x90/0x274 [ 231.427528][ T6296] do_new_mount+0x228/0x810 [ 231.428225][ T6296] path_mount+0x5bc/0x1008 [ 231.428932][ T6296] __arm64_sys_mount+0x514/0x5f0 [ 231.429715][ T6296] invoke_syscall+0x98/0x2b0 [ 231.430425][ T6296] el0_svc_common+0x138/0x258 [ 231.431159][ T6296] do_el0_svc+0x58/0x13c [ 231.431838][ T6296] el0_svc+0x78/0x1d0 [ 231.432455][ T6296] el0t_64_sync_handler+0xcc/0xe4 [ 231.433240][ T6296] el0t_64_sync+0x1a0/0x1a4 [ 231.435438][ T6296] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.437444][ T6296] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.577710][ T6298] loop1: detected capacity change from 0 to 32768 [ 231.645411][ T6298] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.646638][ T6298] CPU: 1 PID: 6298 Comm: syz.1.685 Not tainted syzkaller #0 [ 231.647711][ T6298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.649290][ T6298] Call trace: [ 231.649790][ T6298] dump_backtrace+0x0/0x458 [ 231.650485][ T6298] show_stack+0x2c/0x3c [ 231.651158][ T6298] __dump_stack+0x30/0x40 [ 231.651833][ T6298] dump_stack_lvl+0xf4/0x15c [ 231.652528][ T6298] dump_stack+0x1c/0x5c [ 231.653187][ T6298] sysfs_create_dir_ns+0x244/0x264 [ 231.654067][ T6298] kobject_add_internal+0x5ac/0xc3c [ 231.654869][ T6298] kobject_init_and_add+0x124/0x190 [ 231.655679][ T6298] gfs2_sys_fs_add+0x200/0x41c [ 231.656364][ T6298] gfs2_fill_super+0xddc/0x1a18 [ 231.657101][ T6298] get_tree_bdev+0x358/0x544 [ 231.657837][ T6298] gfs2_get_tree+0x54/0x1b4 [ 231.658564][ T6298] vfs_get_tree+0x90/0x274 [ 231.659318][ T6298] do_new_mount+0x228/0x810 [ 231.660078][ T6298] path_mount+0x5bc/0x1008 [ 231.661054][ T6298] __arm64_sys_mount+0x514/0x5f0 [ 231.661873][ T6298] invoke_syscall+0x98/0x2b0 [ 231.662624][ T6298] el0_svc_common+0x138/0x258 [ 231.663413][ T6298] do_el0_svc+0x58/0x13c [ 231.664112][ T6298] el0_svc+0x78/0x1d0 [ 231.664787][ T6298] el0t_64_sync_handler+0xcc/0xe4 [ 231.665599][ T6298] el0t_64_sync+0x1a0/0x1a4 [ 231.667191][ T6298] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.669185][ T6298] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.904313][ T6300] loop1: detected capacity change from 0 to 32768 [ 231.960748][ T6300] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.962065][ T6300] CPU: 1 PID: 6300 Comm: syz.1.686 Not tainted syzkaller #0 [ 231.963270][ T6300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.964867][ T6300] Call trace: [ 231.965378][ T6300] dump_backtrace+0x0/0x458 [ 231.966126][ T6300] show_stack+0x2c/0x3c [ 231.966803][ T6300] __dump_stack+0x30/0x40 [ 231.967528][ T6300] dump_stack_lvl+0xf4/0x15c [ 231.968272][ T6300] dump_stack+0x1c/0x5c [ 231.968979][ T6300] sysfs_create_dir_ns+0x244/0x264 [ 231.969774][ T6300] kobject_add_internal+0x5ac/0xc3c [ 231.970559][ T6300] kobject_init_and_add+0x124/0x190 [ 231.971386][ T6300] gfs2_sys_fs_add+0x200/0x41c [ 231.972113][ T6300] gfs2_fill_super+0xddc/0x1a18 [ 231.972860][ T6300] get_tree_bdev+0x358/0x544 [ 231.973548][ T6300] gfs2_get_tree+0x54/0x1b4 [ 231.974273][ T6300] vfs_get_tree+0x90/0x274 [ 231.974960][ T6300] do_new_mount+0x228/0x810 [ 231.975676][ T6300] path_mount+0x5bc/0x1008 [ 231.976446][ T6300] __arm64_sys_mount+0x514/0x5f0 [ 231.977311][ T6300] invoke_syscall+0x98/0x2b0 [ 231.978098][ T6300] el0_svc_common+0x138/0x258 [ 231.978912][ T6300] do_el0_svc+0x58/0x13c [ 231.979547][ T6300] el0_svc+0x78/0x1d0 [ 231.980206][ T6300] el0t_64_sync_handler+0xcc/0xe4 [ 231.981067][ T6300] el0t_64_sync+0x1a0/0x1a4 [ 231.983295][ T6300] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.985465][ T6300] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.123345][ T6302] loop1: detected capacity change from 0 to 32768 [ 232.131535][ T6302] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.132734][ T6302] CPU: 0 PID: 6302 Comm: syz.1.687 Not tainted syzkaller #0 [ 232.133923][ T6302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.135625][ T6302] Call trace: [ 232.136173][ T6302] dump_backtrace+0x0/0x458 [ 232.136907][ T6302] show_stack+0x2c/0x3c [ 232.137611][ T6302] __dump_stack+0x30/0x40 [ 232.138313][ T6302] dump_stack_lvl+0xf4/0x15c [ 232.139051][ T6302] dump_stack+0x1c/0x5c [ 232.139699][ T6302] sysfs_create_dir_ns+0x244/0x264 [ 232.140520][ T6302] kobject_add_internal+0x5ac/0xc3c [ 232.141385][ T6302] kobject_init_and_add+0x124/0x190 [ 232.142204][ T6302] gfs2_sys_fs_add+0x200/0x41c [ 232.143033][ T6302] gfs2_fill_super+0xddc/0x1a18 [ 232.143798][ T6302] get_tree_bdev+0x358/0x544 [ 232.144521][ T6302] gfs2_get_tree+0x54/0x1b4 [ 232.145287][ T6302] vfs_get_tree+0x90/0x274 [ 232.146015][ T6302] do_new_mount+0x228/0x810 [ 232.146742][ T6302] path_mount+0x5bc/0x1008 [ 232.147440][ T6302] __arm64_sys_mount+0x514/0x5f0 [ 232.148218][ T6302] invoke_syscall+0x98/0x2b0 [ 232.148990][ T6302] el0_svc_common+0x138/0x258 [ 232.149748][ T6302] do_el0_svc+0x58/0x13c [ 232.150429][ T6302] el0_svc+0x78/0x1d0 [ 232.151082][ T6302] el0t_64_sync_handler+0xcc/0xe4 [ 232.151868][ T6302] el0t_64_sync+0x1a0/0x1a4 [ 232.152740][ T6302] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.155050][ T6302] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.346173][ T6304] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.347405][ T6304] CPU: 0 PID: 6304 Comm: syz.1.688 Not tainted syzkaller #0 [ 232.348523][ T6304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.350016][ T6304] Call trace: [ 232.350507][ T6304] dump_backtrace+0x0/0x458 [ 232.351171][ T6304] show_stack+0x2c/0x3c [ 232.351794][ T6304] __dump_stack+0x30/0x40 [ 232.352470][ T6304] dump_stack_lvl+0xf4/0x15c [ 232.353192][ T6304] dump_stack+0x1c/0x5c [ 232.353853][ T6304] sysfs_create_dir_ns+0x244/0x264 [ 232.354707][ T6304] kobject_add_internal+0x5ac/0xc3c [ 232.355571][ T6304] kobject_init_and_add+0x124/0x190 [ 232.356448][ T6304] gfs2_sys_fs_add+0x200/0x41c [ 232.357266][ T6304] gfs2_fill_super+0xddc/0x1a18 [ 232.357994][ T6304] get_tree_bdev+0x358/0x544 [ 232.358739][ T6304] gfs2_get_tree+0x54/0x1b4 [ 232.359489][ T6304] vfs_get_tree+0x90/0x274 [ 232.360314][ T6304] do_new_mount+0x228/0x810 [ 232.361046][ T6304] path_mount+0x5bc/0x1008 [ 232.361751][ T6304] __arm64_sys_mount+0x514/0x5f0 [ 232.362492][ T6304] invoke_syscall+0x98/0x2b0 [ 232.363197][ T6304] el0_svc_common+0x138/0x258 [ 232.363903][ T6304] do_el0_svc+0x58/0x13c [ 232.364545][ T6304] el0_svc+0x78/0x1d0 [ 232.365158][ T6304] el0t_64_sync_handler+0xcc/0xe4 [ 232.365982][ T6304] el0t_64_sync+0x1a0/0x1a4 [ 232.368206][ T6304] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.370430][ T6304] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.515640][ T6306] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.516868][ T6306] CPU: 1 PID: 6306 Comm: syz.1.689 Not tainted syzkaller #0 [ 232.517942][ T6306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.519449][ T6306] Call trace: [ 232.520010][ T6306] dump_backtrace+0x0/0x458 [ 232.520690][ T6306] show_stack+0x2c/0x3c [ 232.521388][ T6306] __dump_stack+0x30/0x40 [ 232.522063][ T6306] dump_stack_lvl+0xf4/0x15c [ 232.522778][ T6306] dump_stack+0x1c/0x5c [ 232.523388][ T6306] sysfs_create_dir_ns+0x244/0x264 [ 232.524173][ T6306] kobject_add_internal+0x5ac/0xc3c [ 232.524938][ T6306] kobject_init_and_add+0x124/0x190 [ 232.525760][ T6306] gfs2_sys_fs_add+0x200/0x41c [ 232.526552][ T6306] gfs2_fill_super+0xddc/0x1a18 [ 232.527351][ T6306] get_tree_bdev+0x358/0x544 [ 232.528085][ T6306] gfs2_get_tree+0x54/0x1b4 [ 232.528881][ T6306] vfs_get_tree+0x90/0x274 [ 232.529579][ T6306] do_new_mount+0x228/0x810 [ 232.530310][ T6306] path_mount+0x5bc/0x1008 [ 232.531036][ T6306] __arm64_sys_mount+0x514/0x5f0 [ 232.531801][ T6306] invoke_syscall+0x98/0x2b0 [ 232.532513][ T6306] el0_svc_common+0x138/0x258 [ 232.533242][ T6306] do_el0_svc+0x58/0x13c [ 232.533905][ T6306] el0_svc+0x78/0x1d0 [ 232.534607][ T6306] el0t_64_sync_handler+0xcc/0xe4 [ 232.535482][ T6306] el0t_64_sync+0x1a0/0x1a4 [ 232.536457][ T6306] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.538528][ T6306] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.695451][ T6308] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.696638][ T6308] CPU: 1 PID: 6308 Comm: syz.1.690 Not tainted syzkaller #0 [ 232.697865][ T6308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.699568][ T6308] Call trace: [ 232.700132][ T6308] dump_backtrace+0x0/0x458 [ 232.700880][ T6308] show_stack+0x2c/0x3c [ 232.701597][ T6308] __dump_stack+0x30/0x40 [ 232.702296][ T6308] dump_stack_lvl+0xf4/0x15c [ 232.703057][ T6308] dump_stack+0x1c/0x5c [ 232.703705][ T6308] sysfs_create_dir_ns+0x244/0x264 [ 232.704434][ T6308] kobject_add_internal+0x5ac/0xc3c [ 232.705142][ T6308] kobject_init_and_add+0x124/0x190 [ 232.705999][ T6308] gfs2_sys_fs_add+0x200/0x41c [ 232.706772][ T6308] gfs2_fill_super+0xddc/0x1a18 [ 232.707565][ T6308] get_tree_bdev+0x358/0x544 [ 232.708309][ T6308] gfs2_get_tree+0x54/0x1b4 [ 232.709077][ T6308] vfs_get_tree+0x90/0x274 [ 232.709821][ T6308] do_new_mount+0x228/0x810 [ 232.710539][ T6308] path_mount+0x5bc/0x1008 [ 232.711241][ T6308] __arm64_sys_mount+0x514/0x5f0 [ 232.712013][ T6308] invoke_syscall+0x98/0x2b0 [ 232.712753][ T6308] el0_svc_common+0x138/0x258 [ 232.713466][ T6308] do_el0_svc+0x58/0x13c [ 232.714122][ T6308] el0_svc+0x78/0x1d0 [ 232.714701][ T6308] el0t_64_sync_handler+0xcc/0xe4 [ 232.715508][ T6308] el0t_64_sync+0x1a0/0x1a4 [ 232.718402][ T6308] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.720252][ T6308] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.899588][ T6310] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.900896][ T6310] CPU: 1 PID: 6310 Comm: syz.1.691 Not tainted syzkaller #0 [ 232.902126][ T6310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.903664][ T6310] Call trace: [ 232.904161][ T6310] dump_backtrace+0x0/0x458 [ 232.904897][ T6310] show_stack+0x2c/0x3c [ 232.905556][ T6310] __dump_stack+0x30/0x40 [ 232.906240][ T6310] dump_stack_lvl+0xf4/0x15c [ 232.906978][ T6310] dump_stack+0x1c/0x5c [ 232.907677][ T6310] sysfs_create_dir_ns+0x244/0x264 [ 232.908514][ T6310] kobject_add_internal+0x5ac/0xc3c [ 232.909383][ T6310] kobject_init_and_add+0x124/0x190 [ 232.910205][ T6310] gfs2_sys_fs_add+0x200/0x41c [ 232.910975][ T6310] gfs2_fill_super+0xddc/0x1a18 [ 232.911750][ T6310] get_tree_bdev+0x358/0x544 [ 232.912501][ T6310] gfs2_get_tree+0x54/0x1b4 [ 232.913221][ T6310] vfs_get_tree+0x90/0x274 [ 232.913910][ T6310] do_new_mount+0x228/0x810 [ 232.914616][ T6310] path_mount+0x5bc/0x1008 [ 232.915312][ T6310] __arm64_sys_mount+0x514/0x5f0 [ 232.916107][ T6310] invoke_syscall+0x98/0x2b0 [ 232.916815][ T6310] el0_svc_common+0x138/0x258 [ 232.917531][ T6310] do_el0_svc+0x58/0x13c [ 232.918200][ T6310] el0_svc+0x78/0x1d0 [ 232.918814][ T6310] el0t_64_sync_handler+0xcc/0xe4 [ 232.919598][ T6310] el0t_64_sync+0x1a0/0x1a4 [ 232.921909][ T6310] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.924153][ T6310] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.100422][ T6312] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.101645][ T6312] CPU: 1 PID: 6312 Comm: syz.1.692 Not tainted syzkaller #0 [ 233.102709][ T6312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.104275][ T6312] Call trace: [ 233.104786][ T6312] dump_backtrace+0x0/0x458 [ 233.105509][ T6312] show_stack+0x2c/0x3c [ 233.106225][ T6312] __dump_stack+0x30/0x40 [ 233.106979][ T6312] dump_stack_lvl+0xf4/0x15c [ 233.107726][ T6312] dump_stack+0x1c/0x5c [ 233.108382][ T6312] sysfs_create_dir_ns+0x244/0x264 [ 233.109217][ T6312] kobject_add_internal+0x5ac/0xc3c [ 233.110135][ T6312] kobject_init_and_add+0x124/0x190 [ 233.111017][ T6312] gfs2_sys_fs_add+0x200/0x41c [ 233.111791][ T6312] gfs2_fill_super+0xddc/0x1a18 [ 233.112615][ T6312] get_tree_bdev+0x358/0x544 [ 233.113424][ T6312] gfs2_get_tree+0x54/0x1b4 [ 233.114136][ T6312] vfs_get_tree+0x90/0x274 [ 233.114841][ T6312] do_new_mount+0x228/0x810 [ 233.115545][ T6312] path_mount+0x5bc/0x1008 [ 233.116248][ T6312] __arm64_sys_mount+0x514/0x5f0 [ 233.117046][ T6312] invoke_syscall+0x98/0x2b0 [ 233.117735][ T6312] el0_svc_common+0x138/0x258 [ 233.118470][ T6312] do_el0_svc+0x58/0x13c [ 233.119114][ T6312] el0_svc+0x78/0x1d0 [ 233.119753][ T6312] el0t_64_sync_handler+0xcc/0xe4 [ 233.120613][ T6312] el0t_64_sync+0x1a0/0x1a4 [ 233.122906][ T6312] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.124976][ T6312] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.359692][ T6314] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.360909][ T6314] CPU: 1 PID: 6314 Comm: syz.1.693 Not tainted syzkaller #0 [ 233.362066][ T6314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.363690][ T6314] Call trace: [ 233.364209][ T6314] dump_backtrace+0x0/0x458 [ 233.364949][ T6314] show_stack+0x2c/0x3c [ 233.365626][ T6314] __dump_stack+0x30/0x40 [ 233.366362][ T6314] dump_stack_lvl+0xf4/0x15c [ 233.367130][ T6314] dump_stack+0x1c/0x5c [ 233.367785][ T6314] sysfs_create_dir_ns+0x244/0x264 [ 233.368545][ T6314] kobject_add_internal+0x5ac/0xc3c [ 233.369307][ T6314] kobject_init_and_add+0x124/0x190 [ 233.370103][ T6314] gfs2_sys_fs_add+0x200/0x41c [ 233.370808][ T6314] gfs2_fill_super+0xddc/0x1a18 [ 233.371550][ T6314] get_tree_bdev+0x358/0x544 [ 233.372238][ T6314] gfs2_get_tree+0x54/0x1b4 [ 233.372926][ T6314] vfs_get_tree+0x90/0x274 [ 233.373587][ T6314] do_new_mount+0x228/0x810 [ 233.374259][ T6314] path_mount+0x5bc/0x1008 [ 233.375026][ T6314] __arm64_sys_mount+0x514/0x5f0 [ 233.375808][ T6314] invoke_syscall+0x98/0x2b0 [ 233.376589][ T6314] el0_svc_common+0x138/0x258 [ 233.377339][ T6314] do_el0_svc+0x58/0x13c [ 233.377961][ T6314] el0_svc+0x78/0x1d0 [ 233.378569][ T6314] el0t_64_sync_handler+0xcc/0xe4 [ 233.379322][ T6314] el0t_64_sync+0x1a0/0x1a4 [ 233.381628][ T6314] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.383594][ T6314] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.528744][ T6316] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.529996][ T6316] CPU: 0 PID: 6316 Comm: syz.1.694 Not tainted syzkaller #0 [ 233.531145][ T6316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.532733][ T6316] Call trace: [ 233.533250][ T6316] dump_backtrace+0x0/0x458 [ 233.534042][ T6316] show_stack+0x2c/0x3c [ 233.534729][ T6316] __dump_stack+0x30/0x40 [ 233.535424][ T6316] dump_stack_lvl+0xf4/0x15c [ 233.536154][ T6316] dump_stack+0x1c/0x5c [ 233.536770][ T6316] sysfs_create_dir_ns+0x244/0x264 [ 233.537548][ T6316] kobject_add_internal+0x5ac/0xc3c [ 233.538445][ T6316] kobject_init_and_add+0x124/0x190 [ 233.539330][ T6316] gfs2_sys_fs_add+0x200/0x41c [ 233.540126][ T6316] gfs2_fill_super+0xddc/0x1a18 [ 233.540920][ T6316] get_tree_bdev+0x358/0x544 [ 233.541716][ T6316] gfs2_get_tree+0x54/0x1b4 [ 233.542417][ T6316] vfs_get_tree+0x90/0x274 [ 233.543157][ T6316] do_new_mount+0x228/0x810 [ 233.543837][ T6316] path_mount+0x5bc/0x1008 [ 233.544527][ T6316] __arm64_sys_mount+0x514/0x5f0 [ 233.545280][ T6316] invoke_syscall+0x98/0x2b0 [ 233.546012][ T6316] el0_svc_common+0x138/0x258 [ 233.546683][ T6316] do_el0_svc+0x58/0x13c [ 233.547310][ T6316] el0_svc+0x78/0x1d0 [ 233.547925][ T6316] el0t_64_sync_handler+0xcc/0xe4 [ 233.548702][ T6316] el0t_64_sync+0x1a0/0x1a4 [ 233.550871][ T6316] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.552842][ T6316] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.696130][ T6318] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.697449][ T6318] CPU: 1 PID: 6318 Comm: syz.1.695 Not tainted syzkaller #0 [ 233.698558][ T6318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.700032][ T6318] Call trace: [ 233.700519][ T6318] dump_backtrace+0x0/0x458 [ 233.701208][ T6318] show_stack+0x2c/0x3c [ 233.701959][ T6318] __dump_stack+0x30/0x40 [ 233.702723][ T6318] dump_stack_lvl+0xf4/0x15c [ 233.703513][ T6318] dump_stack+0x1c/0x5c [ 233.704250][ T6318] sysfs_create_dir_ns+0x244/0x264 [ 233.705043][ T6318] kobject_add_internal+0x5ac/0xc3c [ 233.705901][ T6318] kobject_init_and_add+0x124/0x190 [ 233.706725][ T6318] gfs2_sys_fs_add+0x200/0x41c [ 233.707472][ T6318] gfs2_fill_super+0xddc/0x1a18 [ 233.708214][ T6318] get_tree_bdev+0x358/0x544 [ 233.709017][ T6318] gfs2_get_tree+0x54/0x1b4 [ 233.709757][ T6318] vfs_get_tree+0x90/0x274 [ 233.710456][ T6318] do_new_mount+0x228/0x810 [ 233.711269][ T6318] path_mount+0x5bc/0x1008 [ 233.712023][ T6318] __arm64_sys_mount+0x514/0x5f0 [ 233.712831][ T6318] invoke_syscall+0x98/0x2b0 [ 233.713568][ T6318] el0_svc_common+0x138/0x258 [ 233.714333][ T6318] do_el0_svc+0x58/0x13c [ 233.715072][ T6318] el0_svc+0x78/0x1d0 [ 233.715760][ T6318] el0t_64_sync_handler+0xcc/0xe4 [ 233.716606][ T6318] el0t_64_sync+0x1a0/0x1a4 [ 233.717776][ T6318] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.719690][ T6318] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.965274][ T6320] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.966401][ T6320] CPU: 1 PID: 6320 Comm: syz.1.696 Not tainted syzkaller #0 [ 233.967459][ T6320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.968866][ T6320] Call trace: [ 233.969398][ T6320] dump_backtrace+0x0/0x458 [ 233.970189][ T6320] show_stack+0x2c/0x3c [ 233.970843][ T6320] __dump_stack+0x30/0x40 [ 233.971522][ T6320] dump_stack_lvl+0xf4/0x15c [ 233.972222][ T6320] dump_stack+0x1c/0x5c [ 233.972896][ T6320] sysfs_create_dir_ns+0x244/0x264 [ 233.973730][ T6320] kobject_add_internal+0x5ac/0xc3c [ 233.974605][ T6320] kobject_init_and_add+0x124/0x190 [ 233.975467][ T6320] gfs2_sys_fs_add+0x200/0x41c [ 233.976237][ T6320] gfs2_fill_super+0xddc/0x1a18 [ 233.977046][ T6320] get_tree_bdev+0x358/0x544 [ 233.977800][ T6320] gfs2_get_tree+0x54/0x1b4 [ 233.978553][ T6320] vfs_get_tree+0x90/0x274 [ 233.979264][ T6320] do_new_mount+0x228/0x810 [ 233.979979][ T6320] path_mount+0x5bc/0x1008 [ 233.980691][ T6320] __arm64_sys_mount+0x514/0x5f0 [ 233.981497][ T6320] invoke_syscall+0x98/0x2b0 [ 233.982232][ T6320] el0_svc_common+0x138/0x258 [ 233.982992][ T6320] do_el0_svc+0x58/0x13c [ 233.983660][ T6320] el0_svc+0x78/0x1d0 [ 233.984311][ T6320] el0t_64_sync_handler+0xcc/0xe4 [ 233.985164][ T6320] el0t_64_sync+0x1a0/0x1a4 [ 233.986960][ T6320] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.988852][ T6320] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.208995][ T6322] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.210270][ T6322] CPU: 0 PID: 6322 Comm: syz.1.697 Not tainted syzkaller #0 [ 234.211483][ T6322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.213118][ T6322] Call trace: [ 234.213626][ T6322] dump_backtrace+0x0/0x458 [ 234.214317][ T6322] show_stack+0x2c/0x3c [ 234.214951][ T6322] __dump_stack+0x30/0x40 [ 234.215630][ T6322] dump_stack_lvl+0xf4/0x15c [ 234.216367][ T6322] dump_stack+0x1c/0x5c [ 234.216986][ T6322] sysfs_create_dir_ns+0x244/0x264 [ 234.217736][ T6322] kobject_add_internal+0x5ac/0xc3c [ 234.218569][ T6322] kobject_init_and_add+0x124/0x190 [ 234.219348][ T6322] gfs2_sys_fs_add+0x200/0x41c [ 234.220049][ T6322] gfs2_fill_super+0xddc/0x1a18 [ 234.220732][ T6322] get_tree_bdev+0x358/0x544 [ 234.221435][ T6322] gfs2_get_tree+0x54/0x1b4 [ 234.222127][ T6322] vfs_get_tree+0x90/0x274 [ 234.222798][ T6322] do_new_mount+0x228/0x810 [ 234.223432][ T6322] path_mount+0x5bc/0x1008 [ 234.224108][ T6322] __arm64_sys_mount+0x514/0x5f0 [ 234.224864][ T6322] invoke_syscall+0x98/0x2b0 [ 234.225609][ T6322] el0_svc_common+0x138/0x258 [ 234.226345][ T6322] do_el0_svc+0x58/0x13c [ 234.227052][ T6322] el0_svc+0x78/0x1d0 [ 234.227649][ T6322] el0t_64_sync_handler+0xcc/0xe4 [ 234.228442][ T6322] el0t_64_sync+0x1a0/0x1a4 [ 234.230881][ T6322] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.232972][ T6322] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.377572][ T6324] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.378768][ T6324] CPU: 0 PID: 6324 Comm: syz.1.698 Not tainted syzkaller #0 [ 234.379923][ T6324] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.381612][ T6324] Call trace: [ 234.382163][ T6324] dump_backtrace+0x0/0x458 [ 234.382864][ T6324] show_stack+0x2c/0x3c [ 234.383532][ T6324] __dump_stack+0x30/0x40 [ 234.384156][ T6324] dump_stack_lvl+0xf4/0x15c [ 234.384823][ T6324] dump_stack+0x1c/0x5c [ 234.385456][ T6324] sysfs_create_dir_ns+0x244/0x264 [ 234.386240][ T6324] kobject_add_internal+0x5ac/0xc3c [ 234.387084][ T6324] kobject_init_and_add+0x124/0x190 [ 234.387927][ T6324] gfs2_sys_fs_add+0x200/0x41c [ 234.388651][ T6324] gfs2_fill_super+0xddc/0x1a18 [ 234.389386][ T6324] get_tree_bdev+0x358/0x544 [ 234.390127][ T6324] gfs2_get_tree+0x54/0x1b4 [ 234.390786][ T6324] vfs_get_tree+0x90/0x274 [ 234.391481][ T6324] do_new_mount+0x228/0x810 [ 234.392216][ T6324] path_mount+0x5bc/0x1008 [ 234.392891][ T6324] __arm64_sys_mount+0x514/0x5f0 [ 234.393653][ T6324] invoke_syscall+0x98/0x2b0 [ 234.394363][ T6324] el0_svc_common+0x138/0x258 [ 234.395065][ T6324] do_el0_svc+0x58/0x13c [ 234.395672][ T6324] el0_svc+0x78/0x1d0 [ 234.396299][ T6324] el0t_64_sync_handler+0xcc/0xe4 [ 234.397028][ T6324] el0t_64_sync+0x1a0/0x1a4 [ 234.399175][ T6324] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.401216][ T6324] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:54 executed programs: 685 [ 234.541816][ T6326] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.542987][ T6326] CPU: 1 PID: 6326 Comm: syz.1.699 Not tainted syzkaller #0 [ 234.544199][ T6326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.545894][ T6326] Call trace: [ 234.546420][ T6326] dump_backtrace+0x0/0x458 [ 234.547198][ T6326] show_stack+0x2c/0x3c [ 234.547898][ T6326] __dump_stack+0x30/0x40 [ 234.548573][ T6326] dump_stack_lvl+0xf4/0x15c [ 234.549323][ T6326] dump_stack+0x1c/0x5c [ 234.550025][ T6326] sysfs_create_dir_ns+0x244/0x264 [ 234.550888][ T6326] kobject_add_internal+0x5ac/0xc3c [ 234.551765][ T6326] kobject_init_and_add+0x124/0x190 [ 234.552662][ T6326] gfs2_sys_fs_add+0x200/0x41c [ 234.553399][ T6326] gfs2_fill_super+0xddc/0x1a18 [ 234.554188][ T6326] get_tree_bdev+0x358/0x544 [ 234.554902][ T6326] gfs2_get_tree+0x54/0x1b4 [ 234.555619][ T6326] vfs_get_tree+0x90/0x274 [ 234.556393][ T6326] do_new_mount+0x228/0x810 [ 234.557167][ T6326] path_mount+0x5bc/0x1008 [ 234.557886][ T6326] __arm64_sys_mount+0x514/0x5f0 [ 234.558708][ T6326] invoke_syscall+0x98/0x2b0 [ 234.559446][ T6326] el0_svc_common+0x138/0x258 [ 234.560180][ T6326] do_el0_svc+0x58/0x13c [ 234.560850][ T6326] el0_svc+0x78/0x1d0 [ 234.561482][ T6326] el0t_64_sync_handler+0xcc/0xe4 [ 234.562314][ T6326] el0t_64_sync+0x1a0/0x1a4 [ 234.563204][ T6326] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.565267][ T6326] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.744190][ T27] INFO: task syz-executor:4713 blocked for more than 143 seconds. [ 234.745505][ T27] Not tainted syzkaller #0 [ 234.745512][ T6328] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.746259][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 234.747604][ T6328] CPU: 1 PID: 6328 Comm: syz.1.700 Not tainted syzkaller #0 [ 234.748808][ T27] task:syz-executor state:D [ 234.749864][ T6328] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.749868][ T27] stack: 0 pid: 4713 ppid: 1 flags:0x00000009 [ 234.749880][ T27] Call trace: [ 234.750541][ T6328] Call trace: [ 234.752133][ T27] __switch_to+0x2f4/0x540 [ 234.753184][ T6328] dump_backtrace+0x0/0x458 [ 234.753695][ T27] __schedule+0xdfc/0x1bc4 [ 234.754234][ T6328] show_stack+0x2c/0x3c [ 234.754250][ T6328] __dump_stack+0x30/0x40 [ 234.754263][ T6328] dump_stack_lvl+0xf4/0x15c [ 234.754269][ T6328] dump_stack+0x1c/0x5c [ 234.754275][ T6328] sysfs_create_dir_ns+0x244/0x264 [ 234.754281][ T6328] kobject_add_internal+0x5ac/0xc3c [ 234.754287][ T6328] kobject_init_and_add+0x124/0x190 [ 234.754292][ T6328] gfs2_sys_fs_add+0x200/0x41c [ 234.761972][ T27] schedule+0x11c/0x1c8 [ 234.762358][ T6328] gfs2_fill_super+0xddc/0x1a18 [ 234.763018][ T27] schedule_timeout+0x194/0x2f4 [ 234.763764][ T6328] get_tree_bdev+0x358/0x544 [ 234.764852][ T27] gfs2_gl_hash_clear+0x174/0x2cc [ 234.765230][ T6328] gfs2_get_tree+0x54/0x1b4 [ 234.766006][ T27] gfs2_put_super+0x614/0x6b4 [ 234.766703][ T6328] vfs_get_tree+0x90/0x274 [ 234.767422][ T27] generic_shutdown_super+0x130/0x2f0 [ 234.768106][ T6328] do_new_mount+0x228/0x810 [ 234.768871][ T27] kill_block_super+0x70/0xdc [ 234.769550][ T6328] path_mount+0x5bc/0x1008 [ 234.770278][ T27] gfs2_kill_sb+0xc0/0xd4 [ 234.770928][ T6328] __arm64_sys_mount+0x514/0x5f0 [ 234.771571][ T27] deactivate_locked_super+0xb8/0x134 [ 234.772321][ T6328] invoke_syscall+0x98/0x2b0 [ 234.773211][ T27] deactivate_super+0xf0/0x110 [ 234.773833][ T6328] el0_svc_common+0x138/0x258 [ 234.775185][ T6328] do_el0_svc+0x58/0x13c [ 234.775365][ T27] cleanup_mnt+0x3b8/0x46c [ 234.775849][ T6328] el0_svc+0x78/0x1d0 [ 234.776568][ T27] __cleanup_mnt+0x20/0x30 [ 234.777128][ T6328] el0t_64_sync_handler+0xcc/0xe4 [ 234.777819][ T27] task_work_run+0x12c/0x1d8 [ 234.778653][ T6328] el0t_64_sync+0x1a0/0x1a4 [ 234.779405][ T27] do_notify_resume+0x2450/0x309c [ 234.781068][ T27] el0_svc+0xf0/0x1d0 [ 234.781679][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 234.782439][ T27] el0t_64_sync+0x1a0/0x1a4 [ 234.782846][ T6328] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.783472][ T27] [ 234.783472][ T27] Showing all locks held in the system: [ 234.785551][ T6328] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.787525][ T27] 1 lock held by khungtaskd/27: [ 234.788729][ T27] #0: ffff800014461360 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 234.791792][ T27] 3 locks held by kworker/u4:4/610: [ 234.792897][ T27] 2 locks held by getty/3804: [ 234.794040][ T27] #0: ffff0000d44ee098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 234.796393][ T27] #1: ffff80001be6e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 234.798437][ T27] 1 lock held by syz-executor/4713: [ 234.799456][ T27] #0: ffff0000db87e0e0 (&type->s_umount_key#52){++++}-{3:3}, at: deactivate_super+0xe8/0x110 [ 234.801102][ T27] [ 234.801506][ T27] ============================================= [ 234.801506][ T27] [ 234.802744][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 234.803784][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 234.804902][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.806429][ T27] Call trace: [ 234.806938][ T27] dump_backtrace+0x0/0x458 [ 234.807641][ T27] show_stack+0x2c/0x3c [ 234.808271][ T27] __dump_stack+0x30/0x40 [ 234.808980][ T27] dump_stack_lvl+0xf4/0x15c [ 234.809755][ T27] dump_stack+0x1c/0x5c [ 234.810470][ T27] panic+0x2fc/0x860 [ 234.811120][ T27] hung_task_panic+0x0/0x2c [ 234.811860][ T27] kthread+0x374/0x454 [ 234.812515][ T27] ret_from_fork+0x10/0x20 [ 234.813253][ T27] SMP: stopping secondary CPUs [ 234.814025][ T27] Kernel Offset: disabled [ 234.814709][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 234.815582][ T27] Memory Limit: none [ 235.152756][ T27] Rebooting in 86400 seconds..