0x54/0x1b4 [ 203.104407][ T6052] vfs_get_tree+0x90/0x274 [ 203.105124][ T6052] do_new_mount+0x228/0x810 [ 203.105827][ T6052] path_mount+0x5b4/0x1000 [ 203.106472][ T6052] __arm64_sys_mount+0x514/0x5e4 [ 203.107249][ T6052] invoke_syscall+0x98/0x2b8 [ 203.107967][ T6052] el0_svc_common+0x138/0x258 [ 203.108652][ T6052] do_el0_svc+0x58/0x14c [ 203.109317][ T6052] el0_svc+0x78/0x1e0 [ 203.110003][ T6052] el0t_64_sync_handler+0xcc/0xe4 [ 203.110730][ T6052] el0t_64_sync+0x1a0/0x1a4 [ 203.111565][ T6052] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.113534][ T6052] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.245445][ T6054] loop1: detected capacity change from 0 to 32768 [ 203.287556][ T6054] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.289117][ T6054] CPU: 1 PID: 6054 Comm: syz.1.541 Not tainted syzkaller #0 [ 203.290283][ T6054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 203.291932][ T6054] Call trace: [ 203.292428][ T6054] dump_backtrace+0x0/0x43c [ 203.293095][ T6054] show_stack+0x2c/0x3c [ 203.293712][ T6054] __dump_stack+0x30/0x40 [ 203.294382][ T6054] dump_stack_lvl+0xf8/0x160 [ 203.295093][ T6054] dump_stack+0x1c/0x5c [ 203.295728][ T6054] sysfs_create_dir_ns+0x22c/0x24c [ 203.296562][ T6054] kobject_add_internal+0x590/0xc54 [ 203.297354][ T6054] kobject_init_and_add+0x118/0x17c [ 203.298106][ T6054] gfs2_sys_fs_add+0x1dc/0x3d8 [ 203.298877][ T6054] gfs2_fill_super+0xdac/0x19e0 [ 203.299584][ T6054] get_tree_bdev+0x358/0x544 [ 203.300260][ T6054] gfs2_get_tree+0x54/0x1b4 [ 203.300901][ T6054] vfs_get_tree+0x90/0x274 [ 203.301553][ T6054] do_new_mount+0x228/0x810 [ 203.302227][ T6054] path_mount+0x5b4/0x1000 [ 203.302907][ T6054] __arm64_sys_mount+0x514/0x5e4 [ 203.303618][ T6054] invoke_syscall+0x98/0x2b8 [ 203.304294][ T6054] el0_svc_common+0x138/0x258 [ 203.304986][ T6054] do_el0_svc+0x58/0x14c [ 203.305609][ T6054] el0_svc+0x78/0x1e0 [ 203.306242][ T6054] el0t_64_sync_handler+0xcc/0xe4 [ 203.306997][ T6054] el0t_64_sync+0x1a0/0x1a4 [ 203.309129][ T6054] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.311172][ T6054] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.441072][ T6056] loop1: detected capacity change from 0 to 32768 [ 203.500143][ T6056] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.501347][ T6056] CPU: 1 PID: 6056 Comm: syz.1.542 Not tainted syzkaller #0 [ 203.502500][ T6056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 203.504024][ T6056] Call trace: [ 203.504510][ T6056] dump_backtrace+0x0/0x43c [ 203.505190][ T6056] show_stack+0x2c/0x3c [ 203.505842][ T6056] __dump_stack+0x30/0x40 [ 203.506522][ T6056] dump_stack_lvl+0xf8/0x160 [ 203.507197][ T6056] dump_stack+0x1c/0x5c [ 203.507820][ T6056] sysfs_create_dir_ns+0x22c/0x24c [ 203.508555][ T6056] kobject_add_internal+0x590/0xc54 [ 203.509303][ T6056] kobject_init_and_add+0x118/0x17c [ 203.510118][ T6056] gfs2_sys_fs_add+0x1dc/0x3d8 [ 203.510823][ T6056] gfs2_fill_super+0xdac/0x19e0 [ 203.511548][ T6056] get_tree_bdev+0x358/0x544 [ 203.512214][ T6056] gfs2_get_tree+0x54/0x1b4 [ 203.512845][ T6056] vfs_get_tree+0x90/0x274 [ 203.513497][ T6056] do_new_mount+0x228/0x810 [ 203.514178][ T6056] path_mount+0x5b4/0x1000 [ 203.514798][ T6056] __arm64_sys_mount+0x514/0x5e4 [ 203.515505][ T6056] invoke_syscall+0x98/0x2b8 [ 203.516163][ T6056] el0_svc_common+0x138/0x258 [ 203.516812][ T6056] do_el0_svc+0x58/0x14c [ 203.517430][ T6056] el0_svc+0x78/0x1e0 [ 203.518024][ T6056] el0t_64_sync_handler+0xcc/0xe4 [ 203.518735][ T6056] el0t_64_sync+0x1a0/0x1a4 [ 203.520208][ T6056] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.522263][ T6056] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.655083][ T6058] loop1: detected capacity change from 0 to 32768 [ 203.763385][ T6058] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.764477][ T6058] CPU: 0 PID: 6058 Comm: syz.1.543 Not tainted syzkaller #0 [ 203.765519][ T6058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 203.766978][ T6058] Call trace: [ 203.767472][ T6058] dump_backtrace+0x0/0x43c [ 203.768126][ T6058] show_stack+0x2c/0x3c [ 203.768782][ T6058] __dump_stack+0x30/0x40 [ 203.769452][ T6058] dump_stack_lvl+0xf8/0x160 [ 203.770109][ T6058] dump_stack+0x1c/0x5c [ 203.770737][ T6058] sysfs_create_dir_ns+0x22c/0x24c [ 203.771515][ T6058] kobject_add_internal+0x590/0xc54 [ 203.772272][ T6058] kobject_init_and_add+0x118/0x17c [ 203.773043][ T6058] gfs2_sys_fs_add+0x1dc/0x3d8 [ 203.773713][ T6058] gfs2_fill_super+0xdac/0x19e0 [ 203.774419][ T6058] get_tree_bdev+0x358/0x544 [ 203.775077][ T6058] gfs2_get_tree+0x54/0x1b4 [ 203.775692][ T6058] vfs_get_tree+0x90/0x274 [ 203.776319][ T6058] do_new_mount+0x228/0x810 [ 203.776948][ T6058] path_mount+0x5b4/0x1000 [ 203.777603][ T6058] __arm64_sys_mount+0x514/0x5e4 [ 203.778320][ T6058] invoke_syscall+0x98/0x2b8 [ 203.778989][ T6058] el0_svc_common+0x138/0x258 [ 203.779650][ T6058] do_el0_svc+0x58/0x14c [ 203.780251][ T6058] el0_svc+0x78/0x1e0 [ 203.780801][ T6058] el0t_64_sync_handler+0xcc/0xe4 [ 203.781496][ T6058] el0t_64_sync+0x1a0/0x1a4 [ 203.784015][ T6058] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.786134][ T6058] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:23 executed programs: 529 [ 203.920072][ T6061] loop1: detected capacity change from 0 to 32768 [ 203.927677][ T6061] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.928897][ T6061] CPU: 1 PID: 6061 Comm: syz.1.544 Not tainted syzkaller #0 [ 203.929936][ T6061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 203.931396][ T6061] Call trace: [ 203.931889][ T6061] dump_backtrace+0x0/0x43c [ 203.932583][ T6061] show_stack+0x2c/0x3c [ 203.933189][ T6061] __dump_stack+0x30/0x40 [ 203.933830][ T6061] dump_stack_lvl+0xf8/0x160 [ 203.934532][ T6061] dump_stack+0x1c/0x5c [ 203.935121][ T6061] sysfs_create_dir_ns+0x22c/0x24c [ 203.935910][ T6061] kobject_add_internal+0x590/0xc54 [ 203.936633][ T6061] kobject_init_and_add+0x118/0x17c [ 203.937391][ T6061] gfs2_sys_fs_add+0x1dc/0x3d8 [ 203.938105][ T6061] gfs2_fill_super+0xdac/0x19e0 [ 203.938829][ T6061] get_tree_bdev+0x358/0x544 [ 203.939492][ T6061] gfs2_get_tree+0x54/0x1b4 [ 203.940161][ T6061] vfs_get_tree+0x90/0x274 [ 203.940806][ T6061] do_new_mount+0x228/0x810 [ 203.941473][ T6061] path_mount+0x5b4/0x1000 [ 203.942100][ T6061] __arm64_sys_mount+0x514/0x5e4 [ 203.942834][ T6061] invoke_syscall+0x98/0x2b8 [ 203.943472][ T6061] el0_svc_common+0x138/0x258 [ 203.944158][ T6061] do_el0_svc+0x58/0x14c [ 203.944801][ T6061] el0_svc+0x78/0x1e0 [ 203.945367][ T6061] el0t_64_sync_handler+0xcc/0xe4 [ 203.946067][ T6061] el0t_64_sync+0x1a0/0x1a4 [ 203.946799][ T6061] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.948675][ T6061] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.095203][ T6063] loop1: detected capacity change from 0 to 32768 [ 204.151555][ T6063] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.152749][ T6063] CPU: 1 PID: 6063 Comm: syz.1.545 Not tainted syzkaller #0 [ 204.153799][ T6063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 204.155317][ T6063] Call trace: [ 204.155788][ T6063] dump_backtrace+0x0/0x43c [ 204.156476][ T6063] show_stack+0x2c/0x3c [ 204.157156][ T6063] __dump_stack+0x30/0x40 [ 204.157842][ T6063] dump_stack_lvl+0xf8/0x160 [ 204.158576][ T6063] dump_stack+0x1c/0x5c [ 204.159202][ T6063] sysfs_create_dir_ns+0x22c/0x24c [ 204.160010][ T6063] kobject_add_internal+0x590/0xc54 [ 204.160797][ T6063] kobject_init_and_add+0x118/0x17c [ 204.161565][ T6063] gfs2_sys_fs_add+0x1dc/0x3d8 [ 204.162266][ T6063] gfs2_fill_super+0xdac/0x19e0 [ 204.163045][ T6063] get_tree_bdev+0x358/0x544 [ 204.163763][ T6063] gfs2_get_tree+0x54/0x1b4 [ 204.164414][ T6063] vfs_get_tree+0x90/0x274 [ 204.165035][ T6063] do_new_mount+0x228/0x810 [ 204.165703][ T6063] path_mount+0x5b4/0x1000 [ 204.166318][ T6063] __arm64_sys_mount+0x514/0x5e4 [ 204.167011][ T6063] invoke_syscall+0x98/0x2b8 [ 204.167657][ T6063] el0_svc_common+0x138/0x258 [ 204.168331][ T6063] do_el0_svc+0x58/0x14c [ 204.168958][ T6063] el0_svc+0x78/0x1e0 [ 204.169521][ T6063] el0t_64_sync_handler+0xcc/0xe4 [ 204.170213][ T6063] el0t_64_sync+0x1a0/0x1a4 [ 204.172370][ T6063] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.174429][ T6063] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.316707][ T6065] loop1: detected capacity change from 0 to 32768 [ 204.371279][ T6065] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.372446][ T6065] CPU: 1 PID: 6065 Comm: syz.1.546 Not tainted syzkaller #0 [ 204.373552][ T6065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 204.375042][ T6065] Call trace: [ 204.375518][ T6065] dump_backtrace+0x0/0x43c [ 204.376247][ T6065] show_stack+0x2c/0x3c [ 204.376901][ T6065] __dump_stack+0x30/0x40 [ 204.377533][ T6065] dump_stack_lvl+0xf8/0x160 [ 204.378217][ T6065] dump_stack+0x1c/0x5c [ 204.378845][ T6065] sysfs_create_dir_ns+0x22c/0x24c [ 204.379654][ T6065] kobject_add_internal+0x590/0xc54 [ 204.380432][ T6065] kobject_init_and_add+0x118/0x17c [ 204.381249][ T6065] gfs2_sys_fs_add+0x1dc/0x3d8 [ 204.381938][ T6065] gfs2_fill_super+0xdac/0x19e0 [ 204.382624][ T6065] get_tree_bdev+0x358/0x544 [ 204.383322][ T6065] gfs2_get_tree+0x54/0x1b4 [ 204.383997][ T6065] vfs_get_tree+0x90/0x274 [ 204.384630][ T6065] do_new_mount+0x228/0x810 [ 204.385303][ T6065] path_mount+0x5b4/0x1000 [ 204.385944][ T6065] __arm64_sys_mount+0x514/0x5e4 [ 204.386672][ T6065] invoke_syscall+0x98/0x2b8 [ 204.387350][ T6065] el0_svc_common+0x138/0x258 [ 204.388036][ T6065] do_el0_svc+0x58/0x14c [ 204.388677][ T6065] el0_svc+0x78/0x1e0 [ 204.389244][ T6065] el0t_64_sync_handler+0xcc/0xe4 [ 204.389962][ T6065] el0t_64_sync+0x1a0/0x1a4 [ 204.392103][ T6065] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.394111][ T6065] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.545361][ T6067] loop1: detected capacity change from 0 to 32768 [ 204.599505][ T6067] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.600811][ T6067] CPU: 1 PID: 6067 Comm: syz.1.547 Not tainted syzkaller #0 [ 204.601888][ T6067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 204.603396][ T6067] Call trace: [ 204.603913][ T6067] dump_backtrace+0x0/0x43c [ 204.604591][ T6067] show_stack+0x2c/0x3c [ 204.605238][ T6067] __dump_stack+0x30/0x40 [ 204.605901][ T6067] dump_stack_lvl+0xf8/0x160 [ 204.606724][ T6067] dump_stack+0x1c/0x5c [ 204.607439][ T6067] sysfs_create_dir_ns+0x22c/0x24c [ 204.608285][ T6067] kobject_add_internal+0x590/0xc54 [ 204.609150][ T6067] kobject_init_and_add+0x118/0x17c [ 204.610013][ T6067] gfs2_sys_fs_add+0x1dc/0x3d8 [ 204.610789][ T6067] gfs2_fill_super+0xdac/0x19e0 [ 204.611498][ T6067] get_tree_bdev+0x358/0x544 [ 204.612130][ T6067] gfs2_get_tree+0x54/0x1b4 [ 204.612824][ T6067] vfs_get_tree+0x90/0x274 [ 204.613457][ T6067] do_new_mount+0x228/0x810 [ 204.614145][ T6067] path_mount+0x5b4/0x1000 [ 204.614837][ T6067] __arm64_sys_mount+0x514/0x5e4 [ 204.615566][ T6067] invoke_syscall+0x98/0x2b8 [ 204.616264][ T6067] el0_svc_common+0x138/0x258 [ 204.616997][ T6067] do_el0_svc+0x58/0x14c [ 204.617624][ T6067] el0_svc+0x78/0x1e0 [ 204.618240][ T6067] el0t_64_sync_handler+0xcc/0xe4 [ 204.619024][ T6067] el0t_64_sync+0x1a0/0x1a4 [ 204.621322][ T6067] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.623434][ T6067] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.761917][ T6069] loop1: detected capacity change from 0 to 32768 [ 204.849340][ T6069] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.850608][ T6069] CPU: 1 PID: 6069 Comm: syz.1.548 Not tainted syzkaller #0 [ 204.851761][ T6069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 204.853414][ T6069] Call trace: [ 204.853901][ T6069] dump_backtrace+0x0/0x43c [ 204.854598][ T6069] show_stack+0x2c/0x3c [ 204.855311][ T6069] __dump_stack+0x30/0x40 [ 204.855944][ T6069] dump_stack_lvl+0xf8/0x160 [ 204.856674][ T6069] dump_stack+0x1c/0x5c [ 204.857294][ T6069] sysfs_create_dir_ns+0x22c/0x24c [ 204.858045][ T6069] kobject_add_internal+0x590/0xc54 [ 204.858824][ T6069] kobject_init_and_add+0x118/0x17c [ 204.859601][ T6069] gfs2_sys_fs_add+0x1dc/0x3d8 [ 204.860329][ T6069] gfs2_fill_super+0xdac/0x19e0 [ 204.861063][ T6069] get_tree_bdev+0x358/0x544 [ 204.861720][ T6069] gfs2_get_tree+0x54/0x1b4 [ 204.862415][ T6069] vfs_get_tree+0x90/0x274 [ 204.863063][ T6069] do_new_mount+0x228/0x810 [ 204.863782][ T6069] path_mount+0x5b4/0x1000 [ 204.864491][ T6069] __arm64_sys_mount+0x514/0x5e4 [ 204.865246][ T6069] invoke_syscall+0x98/0x2b8 [ 204.865969][ T6069] el0_svc_common+0x138/0x258 [ 204.866672][ T6069] do_el0_svc+0x58/0x14c [ 204.867311][ T6069] el0_svc+0x78/0x1e0 [ 204.867930][ T6069] el0t_64_sync_handler+0xcc/0xe4 [ 204.868707][ T6069] el0t_64_sync+0x1a0/0x1a4 [ 204.870196][ T6069] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.872251][ T6069] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.009664][ T6071] loop1: detected capacity change from 0 to 32768 [ 205.017281][ T6071] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.018457][ T6071] CPU: 0 PID: 6071 Comm: syz.1.549 Not tainted syzkaller #0 [ 205.019574][ T6071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 205.021068][ T6071] Call trace: [ 205.021583][ T6071] dump_backtrace+0x0/0x43c [ 205.022302][ T6071] show_stack+0x2c/0x3c [ 205.022909][ T6071] __dump_stack+0x30/0x40 [ 205.023511][ T6071] dump_stack_lvl+0xf8/0x160 [ 205.024228][ T6071] dump_stack+0x1c/0x5c [ 205.024866][ T6071] sysfs_create_dir_ns+0x22c/0x24c [ 205.025654][ T6071] kobject_add_internal+0x590/0xc54 [ 205.026449][ T6071] kobject_init_and_add+0x118/0x17c [ 205.027233][ T6071] gfs2_sys_fs_add+0x1dc/0x3d8 [ 205.027985][ T6071] gfs2_fill_super+0xdac/0x19e0 [ 205.028770][ T6071] get_tree_bdev+0x358/0x544 [ 205.029415][ T6071] gfs2_get_tree+0x54/0x1b4 [ 205.030093][ T6071] vfs_get_tree+0x90/0x274 [ 205.030828][ T6071] do_new_mount+0x228/0x810 [ 205.031507][ T6071] path_mount+0x5b4/0x1000 [ 205.032163][ T6071] __arm64_sys_mount+0x514/0x5e4 [ 205.032906][ T6071] invoke_syscall+0x98/0x2b8 [ 205.033605][ T6071] el0_svc_common+0x138/0x258 [ 205.034323][ T6071] do_el0_svc+0x58/0x14c [ 205.034952][ T6071] el0_svc+0x78/0x1e0 [ 205.035539][ T6071] el0t_64_sync_handler+0xcc/0xe4 [ 205.036286][ T6071] el0t_64_sync+0x1a0/0x1a4 [ 205.037302][ T6071] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.039360][ T6071] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.180191][ T6073] loop1: detected capacity change from 0 to 32768 [ 205.221663][ T6073] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.222921][ T6073] CPU: 0 PID: 6073 Comm: syz.1.550 Not tainted syzkaller #0 [ 205.224094][ T6073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 205.225719][ T6073] Call trace: [ 205.226192][ T6073] dump_backtrace+0x0/0x43c [ 205.226879][ T6073] show_stack+0x2c/0x3c [ 205.227487][ T6073] __dump_stack+0x30/0x40 [ 205.228124][ T6073] dump_stack_lvl+0xf8/0x160 [ 205.228785][ T6073] dump_stack+0x1c/0x5c [ 205.229403][ T6073] sysfs_create_dir_ns+0x22c/0x24c [ 205.230178][ T6073] kobject_add_internal+0x590/0xc54 [ 205.230958][ T6073] kobject_init_and_add+0x118/0x17c [ 205.231761][ T6073] gfs2_sys_fs_add+0x1dc/0x3d8 [ 205.232518][ T6073] gfs2_fill_super+0xdac/0x19e0 [ 205.233263][ T6073] get_tree_bdev+0x358/0x544 [ 205.233938][ T6073] gfs2_get_tree+0x54/0x1b4 [ 205.234657][ T6073] vfs_get_tree+0x90/0x274 [ 205.235304][ T6073] do_new_mount+0x228/0x810 [ 205.235972][ T6073] path_mount+0x5b4/0x1000 [ 205.236694][ T6073] __arm64_sys_mount+0x514/0x5e4 [ 205.237440][ T6073] invoke_syscall+0x98/0x2b8 [ 205.238124][ T6073] el0_svc_common+0x138/0x258 [ 205.238804][ T6073] do_el0_svc+0x58/0x14c [ 205.239411][ T6073] el0_svc+0x78/0x1e0 [ 205.240035][ T6073] el0t_64_sync_handler+0xcc/0xe4 [ 205.240852][ T6073] el0t_64_sync+0x1a0/0x1a4 [ 205.243291][ T6073] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.245501][ T6073] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.375413][ T6075] loop1: detected capacity change from 0 to 32768 [ 205.480983][ T6075] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.482229][ T6075] CPU: 0 PID: 6075 Comm: syz.1.551 Not tainted syzkaller #0 [ 205.483320][ T6075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 205.484870][ T6075] Call trace: [ 205.485363][ T6075] dump_backtrace+0x0/0x43c [ 205.486052][ T6075] show_stack+0x2c/0x3c [ 205.486698][ T6075] __dump_stack+0x30/0x40 [ 205.487376][ T6075] dump_stack_lvl+0xf8/0x160 [ 205.488084][ T6075] dump_stack+0x1c/0x5c [ 205.488689][ T6075] sysfs_create_dir_ns+0x22c/0x24c [ 205.489454][ T6075] kobject_add_internal+0x590/0xc54 [ 205.490205][ T6075] kobject_init_and_add+0x118/0x17c [ 205.491017][ T6075] gfs2_sys_fs_add+0x1dc/0x3d8 [ 205.491771][ T6075] gfs2_fill_super+0xdac/0x19e0 [ 205.492563][ T6075] get_tree_bdev+0x358/0x544 [ 205.493318][ T6075] gfs2_get_tree+0x54/0x1b4 [ 205.494024][ T6075] vfs_get_tree+0x90/0x274 [ 205.494776][ T6075] do_new_mount+0x228/0x810 [ 205.495565][ T6075] path_mount+0x5b4/0x1000 [ 205.496354][ T6075] __arm64_sys_mount+0x514/0x5e4 [ 205.497154][ T6075] invoke_syscall+0x98/0x2b8 [ 205.497922][ T6075] el0_svc_common+0x138/0x258 [ 205.498674][ T6075] do_el0_svc+0x58/0x14c [ 205.499330][ T6075] el0_svc+0x78/0x1e0 [ 205.499939][ T6075] el0t_64_sync_handler+0xcc/0xe4 [ 205.500833][ T6075] el0t_64_sync+0x1a0/0x1a4 [ 205.503089][ T6075] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.505086][ T6075] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.641831][ T6077] loop1: detected capacity change from 0 to 32768 [ 205.651077][ T6077] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.652267][ T6077] CPU: 1 PID: 6077 Comm: syz.1.552 Not tainted syzkaller #0 [ 205.653332][ T6077] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 205.654951][ T6077] Call trace: [ 205.655442][ T6077] dump_backtrace+0x0/0x43c [ 205.656122][ T6077] show_stack+0x2c/0x3c [ 205.656754][ T6077] __dump_stack+0x30/0x40 [ 205.657366][ T6077] dump_stack_lvl+0xf8/0x160 [ 205.658028][ T6077] dump_stack+0x1c/0x5c [ 205.658694][ T6077] sysfs_create_dir_ns+0x22c/0x24c [ 205.659506][ T6077] kobject_add_internal+0x590/0xc54 [ 205.660313][ T6077] kobject_init_and_add+0x118/0x17c [ 205.661086][ T6077] gfs2_sys_fs_add+0x1dc/0x3d8 [ 205.661818][ T6077] gfs2_fill_super+0xdac/0x19e0 [ 205.662546][ T6077] get_tree_bdev+0x358/0x544 [ 205.663221][ T6077] gfs2_get_tree+0x54/0x1b4 [ 205.663944][ T6077] vfs_get_tree+0x90/0x274 [ 205.664600][ T6077] do_new_mount+0x228/0x810 [ 205.665204][ T6077] path_mount+0x5b4/0x1000 [ 205.665826][ T6077] __arm64_sys_mount+0x514/0x5e4 [ 205.666603][ T6077] invoke_syscall+0x98/0x2b8 [ 205.667293][ T6077] el0_svc_common+0x138/0x258 [ 205.667950][ T6077] do_el0_svc+0x58/0x14c [ 205.668547][ T6077] el0_svc+0x78/0x1e0 [ 205.669161][ T6077] el0t_64_sync_handler+0xcc/0xe4 [ 205.669875][ T6077] el0t_64_sync+0x1a0/0x1a4 [ 205.672464][ T6077] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.674519][ T6077] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.807744][ T6079] loop1: detected capacity change from 0 to 32768 [ 205.850021][ T6079] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.851266][ T6079] CPU: 1 PID: 6079 Comm: syz.1.553 Not tainted syzkaller #0 [ 205.852401][ T6079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 205.853966][ T6079] Call trace: [ 205.854474][ T6079] dump_backtrace+0x0/0x43c [ 205.855192][ T6079] show_stack+0x2c/0x3c [ 205.855816][ T6079] __dump_stack+0x30/0x40 [ 205.856517][ T6079] dump_stack_lvl+0xf8/0x160 [ 205.857266][ T6079] dump_stack+0x1c/0x5c [ 205.857902][ T6079] sysfs_create_dir_ns+0x22c/0x24c [ 205.858696][ T6079] kobject_add_internal+0x590/0xc54 [ 205.859527][ T6079] kobject_init_and_add+0x118/0x17c [ 205.860337][ T6079] gfs2_sys_fs_add+0x1dc/0x3d8 [ 205.861081][ T6079] gfs2_fill_super+0xdac/0x19e0 [ 205.861830][ T6079] get_tree_bdev+0x358/0x544 [ 205.862576][ T6079] gfs2_get_tree+0x54/0x1b4 [ 205.863265][ T6079] vfs_get_tree+0x90/0x274 [ 205.863972][ T6079] do_new_mount+0x228/0x810 [ 205.864653][ T6079] path_mount+0x5b4/0x1000 [ 205.865331][ T6079] __arm64_sys_mount+0x514/0x5e4 [ 205.866095][ T6079] invoke_syscall+0x98/0x2b8 [ 205.866818][ T6079] el0_svc_common+0x138/0x258 [ 205.867588][ T6079] do_el0_svc+0x58/0x14c [ 205.868220][ T6079] el0_svc+0x78/0x1e0 [ 205.868848][ T6079] el0t_64_sync_handler+0xcc/0xe4 [ 205.869700][ T6079] el0t_64_sync+0x1a0/0x1a4 [ 205.871935][ T6079] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.874009][ T6079] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.115930][ T6081] loop1: detected capacity change from 0 to 32768 [ 206.165364][ T6081] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.166487][ T6081] CPU: 1 PID: 6081 Comm: syz.1.554 Not tainted syzkaller #0 [ 206.167536][ T6081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 206.169001][ T6081] Call trace: [ 206.169459][ T6081] dump_backtrace+0x0/0x43c [ 206.170132][ T6081] show_stack+0x2c/0x3c [ 206.170795][ T6081] __dump_stack+0x30/0x40 [ 206.171394][ T6081] dump_stack_lvl+0xf8/0x160 [ 206.172139][ T6081] dump_stack+0x1c/0x5c [ 206.172760][ T6081] sysfs_create_dir_ns+0x22c/0x24c [ 206.173532][ T6081] kobject_add_internal+0x590/0xc54 [ 206.174287][ T6081] kobject_init_and_add+0x118/0x17c [ 206.175050][ T6081] gfs2_sys_fs_add+0x1dc/0x3d8 [ 206.175796][ T6081] gfs2_fill_super+0xdac/0x19e0 [ 206.176501][ T6081] get_tree_bdev+0x358/0x544 [ 206.177236][ T6081] gfs2_get_tree+0x54/0x1b4 [ 206.177946][ T6081] vfs_get_tree+0x90/0x274 [ 206.178636][ T6081] do_new_mount+0x228/0x810 [ 206.179362][ T6081] path_mount+0x5b4/0x1000 [ 206.180008][ T6081] __arm64_sys_mount+0x514/0x5e4 [ 206.180804][ T6081] invoke_syscall+0x98/0x2b8 [ 206.181512][ T6081] el0_svc_common+0x138/0x258 [ 206.182218][ T6081] do_el0_svc+0x58/0x14c [ 206.182863][ T6081] el0_svc+0x78/0x1e0 [ 206.183500][ T6081] el0t_64_sync_handler+0xcc/0xe4 [ 206.184260][ T6081] el0t_64_sync+0x1a0/0x1a4 [ 206.186569][ T6081] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.188530][ T6081] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.328070][ T6083] loop1: detected capacity change from 0 to 32768 [ 206.367791][ T6083] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.369338][ T6083] CPU: 0 PID: 6083 Comm: syz.1.555 Not tainted syzkaller #0 [ 206.370466][ T6083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 206.372020][ T6083] Call trace: [ 206.372554][ T6083] dump_backtrace+0x0/0x43c [ 206.373208][ T6083] show_stack+0x2c/0x3c [ 206.373731][ T6083] __dump_stack+0x30/0x40 [ 206.374388][ T6083] dump_stack_lvl+0xf8/0x160 [ 206.375043][ T6083] dump_stack+0x1c/0x5c [ 206.375678][ T6083] sysfs_create_dir_ns+0x22c/0x24c [ 206.376414][ T6083] kobject_add_internal+0x590/0xc54 [ 206.377207][ T6083] kobject_init_and_add+0x118/0x17c [ 206.378010][ T6083] gfs2_sys_fs_add+0x1dc/0x3d8 [ 206.378731][ T6083] gfs2_fill_super+0xdac/0x19e0 [ 206.379446][ T6083] get_tree_bdev+0x358/0x544 [ 206.380170][ T6083] gfs2_get_tree+0x54/0x1b4 [ 206.380881][ T6083] vfs_get_tree+0x90/0x274 [ 206.381547][ T6083] do_new_mount+0x228/0x810 [ 206.382188][ T6083] path_mount+0x5b4/0x1000 [ 206.382874][ T6083] __arm64_sys_mount+0x514/0x5e4 [ 206.383626][ T6083] invoke_syscall+0x98/0x2b8 [ 206.384297][ T6083] el0_svc_common+0x138/0x258 [ 206.384965][ T6083] do_el0_svc+0x58/0x14c [ 206.385579][ T6083] el0_svc+0x78/0x1e0 [ 206.386170][ T6083] el0t_64_sync_handler+0xcc/0xe4 [ 206.386929][ T6083] el0t_64_sync+0x1a0/0x1a4 [ 206.389087][ T6083] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.391287][ T6083] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.526337][ T6085] loop1: detected capacity change from 0 to 32768 [ 206.534461][ T6085] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.535893][ T6085] CPU: 1 PID: 6085 Comm: syz.1.556 Not tainted syzkaller #0 [ 206.536965][ T6085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 206.538506][ T6085] Call trace: [ 206.539013][ T6085] dump_backtrace+0x0/0x43c [ 206.539768][ T6085] show_stack+0x2c/0x3c [ 206.540459][ T6085] __dump_stack+0x30/0x40 [ 206.541143][ T6085] dump_stack_lvl+0xf8/0x160 [ 206.541928][ T6085] dump_stack+0x1c/0x5c [ 206.542569][ T6085] sysfs_create_dir_ns+0x22c/0x24c [ 206.543371][ T6085] kobject_add_internal+0x590/0xc54 [ 206.544214][ T6085] kobject_init_and_add+0x118/0x17c [ 206.545009][ T6085] gfs2_sys_fs_add+0x1dc/0x3d8 [ 206.545734][ T6085] gfs2_fill_super+0xdac/0x19e0 [ 206.546485][ T6085] get_tree_bdev+0x358/0x544 [ 206.547174][ T6085] gfs2_get_tree+0x54/0x1b4 [ 206.547840][ T6085] vfs_get_tree+0x90/0x274 [ 206.548446][ T6085] do_new_mount+0x228/0x810 [ 206.549074][ T6085] path_mount+0x5b4/0x1000 [ 206.549691][ T6085] __arm64_sys_mount+0x514/0x5e4 [ 206.550446][ T6085] invoke_syscall+0x98/0x2b8 [ 206.551124][ T6085] el0_svc_common+0x138/0x258 [ 206.551839][ T6085] do_el0_svc+0x58/0x14c [ 206.552474][ T6085] el0_svc+0x78/0x1e0 [ 206.553046][ T6085] el0t_64_sync_handler+0xcc/0xe4 [ 206.553791][ T6085] el0t_64_sync+0x1a0/0x1a4 [ 206.554621][ T6085] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.556740][ T6085] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.691080][ T6087] loop1: detected capacity change from 0 to 32768 [ 206.699504][ T6087] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.700659][ T6087] CPU: 1 PID: 6087 Comm: syz.1.557 Not tainted syzkaller #0 [ 206.701787][ T6087] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 206.703206][ T6087] Call trace: [ 206.703632][ T6087] dump_backtrace+0x0/0x43c [ 206.704302][ T6087] show_stack+0x2c/0x3c [ 206.704854][ T6087] __dump_stack+0x30/0x40 [ 206.705459][ T6087] dump_stack_lvl+0xf8/0x160 [ 206.706162][ T6087] dump_stack+0x1c/0x5c [ 206.706812][ T6087] sysfs_create_dir_ns+0x22c/0x24c [ 206.707587][ T6087] kobject_add_internal+0x590/0xc54 [ 206.708334][ T6087] kobject_init_and_add+0x118/0x17c [ 206.709149][ T6087] gfs2_sys_fs_add+0x1dc/0x3d8 [ 206.709847][ T6087] gfs2_fill_super+0xdac/0x19e0 [ 206.710622][ T6087] get_tree_bdev+0x358/0x544 [ 206.711305][ T6087] gfs2_get_tree+0x54/0x1b4 [ 206.712005][ T6087] vfs_get_tree+0x90/0x274 [ 206.712656][ T6087] do_new_mount+0x228/0x810 [ 206.713343][ T6087] path_mount+0x5b4/0x1000 [ 206.714008][ T6087] __arm64_sys_mount+0x514/0x5e4 [ 206.714788][ T6087] invoke_syscall+0x98/0x2b8 [ 206.715445][ T6087] el0_svc_common+0x138/0x258 [ 206.716137][ T6087] do_el0_svc+0x58/0x14c [ 206.716793][ T6087] el0_svc+0x78/0x1e0 [ 206.717370][ T6087] el0t_64_sync_handler+0xcc/0xe4 [ 206.718048][ T6087] el0t_64_sync+0x1a0/0x1a4 [ 206.718891][ T6087] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.720774][ T6087] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.859395][ T6089] loop1: detected capacity change from 0 to 32768 [ 206.862540][ T6089] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.863827][ T6089] CPU: 1 PID: 6089 Comm: syz.1.558 Not tainted syzkaller #0 [ 206.864967][ T6089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 206.866525][ T6089] Call trace: [ 206.867021][ T6089] dump_backtrace+0x0/0x43c [ 206.867721][ T6089] show_stack+0x2c/0x3c [ 206.868330][ T6089] __dump_stack+0x30/0x40 [ 206.868989][ T6089] dump_stack_lvl+0xf8/0x160 [ 206.869656][ T6089] dump_stack+0x1c/0x5c [ 206.870278][ T6089] sysfs_create_dir_ns+0x22c/0x24c [ 206.870999][ T6089] kobject_add_internal+0x590/0xc54 [ 206.871759][ T6089] kobject_init_and_add+0x118/0x17c [ 206.872547][ T6089] gfs2_sys_fs_add+0x1dc/0x3d8 [ 206.873233][ T6089] gfs2_fill_super+0xdac/0x19e0 [ 206.873969][ T6089] get_tree_bdev+0x358/0x544 [ 206.874686][ T6089] gfs2_get_tree+0x54/0x1b4 [ 206.875393][ T6089] vfs_get_tree+0x90/0x274 [ 206.876007][ T6089] do_new_mount+0x228/0x810 [ 206.876677][ T6089] path_mount+0x5b4/0x1000 [ 206.877309][ T6089] __arm64_sys_mount+0x514/0x5e4 [ 206.878095][ T6089] invoke_syscall+0x98/0x2b8 [ 206.878773][ T6089] el0_svc_common+0x138/0x258 [ 206.879486][ T6089] do_el0_svc+0x58/0x14c [ 206.880122][ T6089] el0_svc+0x78/0x1e0 [ 206.880701][ T6089] el0t_64_sync_handler+0xcc/0xe4 [ 206.881445][ T6089] el0t_64_sync+0x1a0/0x1a4 [ 206.883520][ T6089] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.885768][ T6089] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.070373][ T6091] loop1: detected capacity change from 0 to 32768 [ 207.116699][ T6091] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.117845][ T6091] CPU: 0 PID: 6091 Comm: syz.1.559 Not tainted syzkaller #0 [ 207.118959][ T6091] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 207.120405][ T6091] Call trace: [ 207.120835][ T6091] dump_backtrace+0x0/0x43c [ 207.121545][ T6091] show_stack+0x2c/0x3c [ 207.122114][ T6091] __dump_stack+0x30/0x40 [ 207.122765][ T6091] dump_stack_lvl+0xf8/0x160 [ 207.123431][ T6091] dump_stack+0x1c/0x5c [ 207.124020][ T6091] sysfs_create_dir_ns+0x22c/0x24c [ 207.124776][ T6091] kobject_add_internal+0x590/0xc54 [ 207.125558][ T6091] kobject_init_and_add+0x118/0x17c [ 207.126351][ T6091] gfs2_sys_fs_add+0x1dc/0x3d8 [ 207.127096][ T6091] gfs2_fill_super+0xdac/0x19e0 [ 207.127827][ T6091] get_tree_bdev+0x358/0x544 [ 207.128490][ T6091] gfs2_get_tree+0x54/0x1b4 [ 207.129187][ T6091] vfs_get_tree+0x90/0x274 [ 207.129864][ T6091] do_new_mount+0x228/0x810 [ 207.130480][ T6091] path_mount+0x5b4/0x1000 [ 207.131157][ T6091] __arm64_sys_mount+0x514/0x5e4 [ 207.131936][ T6091] invoke_syscall+0x98/0x2b8 [ 207.132636][ T6091] el0_svc_common+0x138/0x258 [ 207.133358][ T6091] do_el0_svc+0x58/0x14c [ 207.134001][ T6091] el0_svc+0x78/0x1e0 [ 207.134586][ T6091] el0t_64_sync_handler+0xcc/0xe4 [ 207.135362][ T6091] el0t_64_sync+0x1a0/0x1a4 [ 207.136525][ T6091] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.138454][ T6091] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.274179][ T6093] loop1: detected capacity change from 0 to 32768 [ 207.339716][ T6093] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.340972][ T6093] CPU: 1 PID: 6093 Comm: syz.1.560 Not tainted syzkaller #0 [ 207.342116][ T6093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 207.343634][ T6093] Call trace: [ 207.344197][ T6093] dump_backtrace+0x0/0x43c [ 207.344926][ T6093] show_stack+0x2c/0x3c [ 207.345576][ T6093] __dump_stack+0x30/0x40 [ 207.346240][ T6093] dump_stack_lvl+0xf8/0x160 [ 207.346940][ T6093] dump_stack+0x1c/0x5c [ 207.347535][ T6093] sysfs_create_dir_ns+0x22c/0x24c [ 207.348324][ T6093] kobject_add_internal+0x590/0xc54 [ 207.349107][ T6093] kobject_init_and_add+0x118/0x17c [ 207.349871][ T6093] gfs2_sys_fs_add+0x1dc/0x3d8 [ 207.350560][ T6093] gfs2_fill_super+0xdac/0x19e0 [ 207.351254][ T6093] get_tree_bdev+0x358/0x544 [ 207.351902][ T6093] gfs2_get_tree+0x54/0x1b4 [ 207.352557][ T6093] vfs_get_tree+0x90/0x274 [ 207.353168][ T6093] do_new_mount+0x228/0x810 [ 207.353796][ T6093] path_mount+0x5b4/0x1000 [ 207.354407][ T6093] __arm64_sys_mount+0x514/0x5e4 [ 207.355188][ T6093] invoke_syscall+0x98/0x2b8 [ 207.355872][ T6093] el0_svc_common+0x138/0x258 [ 207.356563][ T6093] do_el0_svc+0x58/0x14c [ 207.357107][ T6093] el0_svc+0x78/0x1e0 [ 207.357636][ T6093] el0t_64_sync_handler+0xcc/0xe4 [ 207.358378][ T6093] el0t_64_sync+0x1a0/0x1a4 [ 207.360510][ T6093] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.362590][ T6093] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.503679][ T6095] loop1: detected capacity change from 0 to 32768 [ 207.536804][ T6095] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.538105][ T6095] CPU: 1 PID: 6095 Comm: syz.1.561 Not tainted syzkaller #0 [ 207.539214][ T6095] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 207.540745][ T6095] Call trace: [ 207.541242][ T6095] dump_backtrace+0x0/0x43c [ 207.541899][ T6095] show_stack+0x2c/0x3c [ 207.542516][ T6095] __dump_stack+0x30/0x40 [ 207.543205][ T6095] dump_stack_lvl+0xf8/0x160 [ 207.543972][ T6095] dump_stack+0x1c/0x5c [ 207.544634][ T6095] sysfs_create_dir_ns+0x22c/0x24c [ 207.545474][ T6095] kobject_add_internal+0x590/0xc54 [ 207.546292][ T6095] kobject_init_and_add+0x118/0x17c [ 207.547081][ T6095] gfs2_sys_fs_add+0x1dc/0x3d8 [ 207.547799][ T6095] gfs2_fill_super+0xdac/0x19e0 [ 207.548499][ T6095] get_tree_bdev+0x358/0x544 [ 207.549193][ T6095] gfs2_get_tree+0x54/0x1b4 [ 207.549868][ T6095] vfs_get_tree+0x90/0x274 [ 207.550538][ T6095] do_new_mount+0x228/0x810 [ 207.551159][ T6095] path_mount+0x5b4/0x1000 [ 207.551840][ T6095] __arm64_sys_mount+0x514/0x5e4 [ 207.552561][ T6095] invoke_syscall+0x98/0x2b8 [ 207.553215][ T6095] el0_svc_common+0x138/0x258 [ 207.553883][ T6095] do_el0_svc+0x58/0x14c [ 207.554505][ T6095] el0_svc+0x78/0x1e0 [ 207.555077][ T6095] el0t_64_sync_handler+0xcc/0xe4 [ 207.555828][ T6095] el0t_64_sync+0x1a0/0x1a4 [ 207.558069][ T6095] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.560009][ T6095] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.799337][ T6097] loop1: detected capacity change from 0 to 32768 [ 207.842156][ T6097] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.843479][ T6097] CPU: 1 PID: 6097 Comm: syz.1.562 Not tainted syzkaller #0 [ 207.844628][ T6097] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 207.846246][ T6097] Call trace: [ 207.846747][ T6097] dump_backtrace+0x0/0x43c [ 207.847371][ T6097] show_stack+0x2c/0x3c [ 207.848030][ T6097] __dump_stack+0x30/0x40 [ 207.848746][ T6097] dump_stack_lvl+0xf8/0x160 [ 207.849458][ T6097] dump_stack+0x1c/0x5c [ 207.850103][ T6097] sysfs_create_dir_ns+0x22c/0x24c [ 207.850862][ T6097] kobject_add_internal+0x590/0xc54 [ 207.851648][ T6097] kobject_init_and_add+0x118/0x17c [ 207.852432][ T6097] gfs2_sys_fs_add+0x1dc/0x3d8 [ 207.853203][ T6097] gfs2_fill_super+0xdac/0x19e0 [ 207.853926][ T6097] get_tree_bdev+0x358/0x544 [ 207.854577][ T6097] gfs2_get_tree+0x54/0x1b4 [ 207.855290][ T6097] vfs_get_tree+0x90/0x274 [ 207.855950][ T6097] do_new_mount+0x228/0x810 [ 207.856660][ T6097] path_mount+0x5b4/0x1000 [ 207.857323][ T6097] __arm64_sys_mount+0x514/0x5e4 [ 207.858080][ T6097] invoke_syscall+0x98/0x2b8 [ 207.858786][ T6097] el0_svc_common+0x138/0x258 [ 207.859501][ T6097] do_el0_svc+0x58/0x14c [ 207.860135][ T6097] el0_svc+0x78/0x1e0 [ 207.860758][ T6097] el0t_64_sync_handler+0xcc/0xe4 [ 207.861515][ T6097] el0t_64_sync+0x1a0/0x1a4 [ 207.865202][ T6097] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.867451][ T6097] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.004077][ T6099] loop1: detected capacity change from 0 to 32768 [ 208.046680][ T6099] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.047896][ T6099] CPU: 0 PID: 6099 Comm: syz.1.563 Not tainted syzkaller #0 [ 208.048990][ T6099] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 208.050541][ T6099] Call trace: [ 208.051009][ T6099] dump_backtrace+0x0/0x43c [ 208.051677][ T6099] show_stack+0x2c/0x3c [ 208.052303][ T6099] __dump_stack+0x30/0x40 [ 208.052953][ T6099] dump_stack_lvl+0xf8/0x160 [ 208.053587][ T6099] dump_stack+0x1c/0x5c [ 208.054205][ T6099] sysfs_create_dir_ns+0x22c/0x24c [ 208.054920][ T6099] kobject_add_internal+0x590/0xc54 [ 208.055654][ T6099] kobject_init_and_add+0x118/0x17c [ 208.056425][ T6099] gfs2_sys_fs_add+0x1dc/0x3d8 [ 208.057104][ T6099] gfs2_fill_super+0xdac/0x19e0 [ 208.057810][ T6099] get_tree_bdev+0x358/0x544 [ 208.058472][ T6099] gfs2_get_tree+0x54/0x1b4 [ 208.059150][ T6099] vfs_get_tree+0x90/0x274 [ 208.059779][ T6099] do_new_mount+0x228/0x810 [ 208.060467][ T6099] path_mount+0x5b4/0x1000 [ 208.061107][ T6099] __arm64_sys_mount+0x514/0x5e4 [ 208.061894][ T6099] invoke_syscall+0x98/0x2b8 [ 208.062530][ T6099] el0_svc_common+0x138/0x258 [ 208.063278][ T6099] do_el0_svc+0x58/0x14c [ 208.063925][ T6099] el0_svc+0x78/0x1e0 [ 208.064430][ T6099] el0t_64_sync_handler+0xcc/0xe4 [ 208.065111][ T6099] el0t_64_sync+0x1a0/0x1a4 [ 208.065837][ T6099] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.067713][ T6099] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.203289][ T6101] loop1: detected capacity change from 0 to 32768 [ 208.210402][ T6101] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.211694][ T6101] CPU: 0 PID: 6101 Comm: syz.1.564 Not tainted syzkaller #0 [ 208.212864][ T6101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 208.214295][ T6101] Call trace: [ 208.214751][ T6101] dump_backtrace+0x0/0x43c [ 208.215387][ T6101] show_stack+0x2c/0x3c [ 208.216028][ T6101] __dump_stack+0x30/0x40 [ 208.216735][ T6101] dump_stack_lvl+0xf8/0x160 [ 208.217404][ T6101] dump_stack+0x1c/0x5c [ 208.218011][ T6101] sysfs_create_dir_ns+0x22c/0x24c [ 208.218771][ T6101] kobject_add_internal+0x590/0xc54 [ 208.219452][ T6101] kobject_init_and_add+0x118/0x17c [ 208.220250][ T6101] gfs2_sys_fs_add+0x1dc/0x3d8 [ 208.220984][ T6101] gfs2_fill_super+0xdac/0x19e0 [ 208.221712][ T6101] get_tree_bdev+0x358/0x544 [ 208.222394][ T6101] gfs2_get_tree+0x54/0x1b4 [ 208.223078][ T6101] vfs_get_tree+0x90/0x274 [ 208.223684][ T6101] do_new_mount+0x228/0x810 [ 208.224399][ T6101] path_mount+0x5b4/0x1000 [ 208.225088][ T6101] __arm64_sys_mount+0x514/0x5e4 [ 208.225895][ T6101] invoke_syscall+0x98/0x2b8 [ 208.226576][ T6101] el0_svc_common+0x138/0x258 [ 208.227273][ T6101] do_el0_svc+0x58/0x14c [ 208.227875][ T6101] el0_svc+0x78/0x1e0 [ 208.228464][ T6101] el0t_64_sync_handler+0xcc/0xe4 [ 208.229249][ T6101] el0t_64_sync+0x1a0/0x1a4 [ 208.230220][ T6101] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.232253][ T6101] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.366211][ T6103] loop1: detected capacity change from 0 to 32768 [ 208.373828][ T6103] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.375079][ T6103] CPU: 1 PID: 6103 Comm: syz.1.565 Not tainted syzkaller #0 [ 208.376211][ T6103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 208.377778][ T6103] Call trace: [ 208.378268][ T6103] dump_backtrace+0x0/0x43c [ 208.378983][ T6103] show_stack+0x2c/0x3c [ 208.379622][ T6103] __dump_stack+0x30/0x40 [ 208.380256][ T6103] dump_stack_lvl+0xf8/0x160 [ 208.380944][ T6103] dump_stack+0x1c/0x5c [ 208.381600][ T6103] sysfs_create_dir_ns+0x22c/0x24c [ 208.382341][ T6103] kobject_add_internal+0x590/0xc54 [ 208.383069][ T6103] kobject_init_and_add+0x118/0x17c [ 208.383883][ T6103] gfs2_sys_fs_add+0x1dc/0x3d8 [ 208.384591][ T6103] gfs2_fill_super+0xdac/0x19e0 [ 208.385281][ T6103] get_tree_bdev+0x358/0x544 [ 208.386003][ T6103] gfs2_get_tree+0x54/0x1b4 [ 208.386672][ T6103] vfs_get_tree+0x90/0x274 [ 208.387353][ T6103] do_new_mount+0x228/0x810 [ 208.388031][ T6103] path_mount+0x5b4/0x1000 [ 208.388650][ T6103] __arm64_sys_mount+0x514/0x5e4 [ 208.389384][ T6103] invoke_syscall+0x98/0x2b8 [ 208.390014][ T6103] el0_svc_common+0x138/0x258 [ 208.390706][ T6103] do_el0_svc+0x58/0x14c [ 208.391354][ T6103] el0_svc+0x78/0x1e0 [ 208.391931][ T6103] el0t_64_sync_handler+0xcc/0xe4 [ 208.392647][ T6103] el0t_64_sync+0x1a0/0x1a4 [ 208.394830][ T6103] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.397090][ T6103] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.526528][ T6105] loop1: detected capacity change from 0 to 32768 [ 208.579910][ T6105] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.581161][ T6105] CPU: 1 PID: 6105 Comm: syz.1.566 Not tainted syzkaller #0 [ 208.582328][ T6105] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 208.583789][ T6105] Call trace: [ 208.584284][ T6105] dump_backtrace+0x0/0x43c [ 208.585004][ T6105] show_stack+0x2c/0x3c [ 208.585655][ T6105] __dump_stack+0x30/0x40 [ 208.586329][ T6105] dump_stack_lvl+0xf8/0x160 [ 208.587071][ T6105] dump_stack+0x1c/0x5c [ 208.587699][ T6105] sysfs_create_dir_ns+0x22c/0x24c [ 208.588456][ T6105] kobject_add_internal+0x590/0xc54 [ 208.589197][ T6105] kobject_init_and_add+0x118/0x17c [ 208.590003][ T6105] gfs2_sys_fs_add+0x1dc/0x3d8 [ 208.590720][ T6105] gfs2_fill_super+0xdac/0x19e0 [ 208.591445][ T6105] get_tree_bdev+0x358/0x544 [ 208.592133][ T6105] gfs2_get_tree+0x54/0x1b4 [ 208.592779][ T6105] vfs_get_tree+0x90/0x274 [ 208.593448][ T6105] do_new_mount+0x228/0x810 [ 208.594113][ T6105] path_mount+0x5b4/0x1000 [ 208.594762][ T6105] __arm64_sys_mount+0x514/0x5e4 [ 208.595435][ T6105] invoke_syscall+0x98/0x2b8 [ 208.596048][ T6105] el0_svc_common+0x138/0x258 [ 208.596834][ T6105] do_el0_svc+0x58/0x14c [ 208.597470][ T6105] el0_svc+0x78/0x1e0 [ 208.598040][ T6105] el0t_64_sync_handler+0xcc/0xe4 [ 208.598794][ T6105] el0t_64_sync+0x1a0/0x1a4 [ 208.600949][ T6105] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.603125][ T6105] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.737834][ T6107] loop1: detected capacity change from 0 to 32768 [ 208.776622][ T6107] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.777934][ T6107] CPU: 1 PID: 6107 Comm: syz.1.567 Not tainted syzkaller #0 [ 208.779030][ T6107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 208.780632][ T6107] Call trace: [ 208.781100][ T6107] dump_backtrace+0x0/0x43c [ 208.781782][ T6107] show_stack+0x2c/0x3c [ 208.782354][ T6107] __dump_stack+0x30/0x40 [ 208.783031][ T6107] dump_stack_lvl+0xf8/0x160 [ 208.783726][ T6107] dump_stack+0x1c/0x5c [ 208.784424][ T6107] sysfs_create_dir_ns+0x22c/0x24c [ 208.785233][ T6107] kobject_add_internal+0x590/0xc54 [ 208.786028][ T6107] kobject_init_and_add+0x118/0x17c [ 208.786790][ T6107] gfs2_sys_fs_add+0x1dc/0x3d8 [ 208.787482][ T6107] gfs2_fill_super+0xdac/0x19e0 [ 208.788232][ T6107] get_tree_bdev+0x358/0x544 [ 208.789002][ T6107] gfs2_get_tree+0x54/0x1b4 [ 208.789652][ T6107] vfs_get_tree+0x90/0x274 [ 208.790304][ T6107] do_new_mount+0x228/0x810 [ 208.790973][ T6107] path_mount+0x5b4/0x1000 [ 208.791657][ T6107] __arm64_sys_mount+0x514/0x5e4 [ 208.792358][ T6107] invoke_syscall+0x98/0x2b8 [ 208.793066][ T6107] el0_svc_common+0x138/0x258 [ 208.793796][ T6107] do_el0_svc+0x58/0x14c [ 208.794423][ T6107] el0_svc+0x78/0x1e0 [ 208.794993][ T6107] el0t_64_sync_handler+0xcc/0xe4 [ 208.795681][ T6107] el0t_64_sync+0x1a0/0x1a4 [ 208.796915][ T6107] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.798889][ T6107] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:28 executed programs: 553 [ 209.042123][ T6109] loop1: detected capacity change from 0 to 32768 [ 209.084650][ T6109] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.088981][ T6109] CPU: 0 PID: 6109 Comm: syz.1.568 Not tainted syzkaller #0 [ 209.090084][ T6109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 209.091527][ T6109] Call trace: [ 209.091985][ T6109] dump_backtrace+0x0/0x43c [ 209.092638][ T6109] show_stack+0x2c/0x3c [ 209.093353][ T6109] __dump_stack+0x30/0x40 [ 209.093998][ T6109] dump_stack_lvl+0xf8/0x160 [ 209.094664][ T6109] dump_stack+0x1c/0x5c [ 209.095280][ T6109] sysfs_create_dir_ns+0x22c/0x24c [ 209.096023][ T6109] kobject_add_internal+0x590/0xc54 [ 209.096777][ T6109] kobject_init_and_add+0x118/0x17c [ 209.097560][ T6109] gfs2_sys_fs_add+0x1dc/0x3d8 [ 209.098278][ T6109] gfs2_fill_super+0xdac/0x19e0 [ 209.099002][ T6109] get_tree_bdev+0x358/0x544 [ 209.099668][ T6109] gfs2_get_tree+0x54/0x1b4 [ 209.100370][ T6109] vfs_get_tree+0x90/0x274 [ 209.101052][ T6109] do_new_mount+0x228/0x810 [ 209.101753][ T6109] path_mount+0x5b4/0x1000 [ 209.102436][ T6109] __arm64_sys_mount+0x514/0x5e4 [ 209.103164][ T6109] invoke_syscall+0x98/0x2b8 [ 209.103852][ T6109] el0_svc_common+0x138/0x258 [ 209.104566][ T6109] do_el0_svc+0x58/0x14c [ 209.105216][ T6109] el0_svc+0x78/0x1e0 [ 209.105807][ T6109] el0t_64_sync_handler+0xcc/0xe4 [ 209.106626][ T6109] el0t_64_sync+0x1a0/0x1a4 [ 209.110017][ T6109] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.112106][ T6109] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.247805][ T6111] loop1: detected capacity change from 0 to 32768 [ 209.292496][ T6111] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.293725][ T6111] CPU: 0 PID: 6111 Comm: syz.1.569 Not tainted syzkaller #0 [ 209.294885][ T6111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 209.296433][ T6111] Call trace: [ 209.296956][ T6111] dump_backtrace+0x0/0x43c [ 209.297636][ T6111] show_stack+0x2c/0x3c [ 209.298237][ T6111] __dump_stack+0x30/0x40 [ 209.298865][ T6111] dump_stack_lvl+0xf8/0x160 [ 209.299600][ T6111] dump_stack+0x1c/0x5c [ 209.300236][ T6111] sysfs_create_dir_ns+0x22c/0x24c [ 209.300978][ T6111] kobject_add_internal+0x590/0xc54 [ 209.301782][ T6111] kobject_init_and_add+0x118/0x17c [ 209.302600][ T6111] gfs2_sys_fs_add+0x1dc/0x3d8 [ 209.303285][ T6111] gfs2_fill_super+0xdac/0x19e0 [ 209.304062][ T6111] get_tree_bdev+0x358/0x544 [ 209.304727][ T6111] gfs2_get_tree+0x54/0x1b4 [ 209.305354][ T6111] vfs_get_tree+0x90/0x274 [ 209.305939][ T6111] do_new_mount+0x228/0x810 [ 209.306587][ T6111] path_mount+0x5b4/0x1000 [ 209.307180][ T6111] __arm64_sys_mount+0x514/0x5e4 [ 209.307897][ T6111] invoke_syscall+0x98/0x2b8 [ 209.308614][ T6111] el0_svc_common+0x138/0x258 [ 209.309332][ T6111] do_el0_svc+0x58/0x14c [ 209.309916][ T6111] el0_svc+0x78/0x1e0 [ 209.310495][ T6111] el0t_64_sync_handler+0xcc/0xe4 [ 209.311241][ T6111] el0t_64_sync+0x1a0/0x1a4 [ 209.313009][ T6111] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.315041][ T6111] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.457396][ T6113] loop1: detected capacity change from 0 to 32768 [ 209.515415][ T6113] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.516697][ T6113] CPU: 1 PID: 6113 Comm: syz.1.570 Not tainted syzkaller #0 [ 209.517846][ T6113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 209.519311][ T6113] Call trace: [ 209.519813][ T6113] dump_backtrace+0x0/0x43c [ 209.520445][ T6113] show_stack+0x2c/0x3c [ 209.521095][ T6113] __dump_stack+0x30/0x40 [ 209.521752][ T6113] dump_stack_lvl+0xf8/0x160 [ 209.522503][ T6113] dump_stack+0x1c/0x5c [ 209.523093][ T6113] sysfs_create_dir_ns+0x22c/0x24c [ 209.523845][ T6113] kobject_add_internal+0x590/0xc54 [ 209.524581][ T6113] kobject_init_and_add+0x118/0x17c [ 209.525329][ T6113] gfs2_sys_fs_add+0x1dc/0x3d8 [ 209.526070][ T6113] gfs2_fill_super+0xdac/0x19e0 [ 209.526781][ T6113] get_tree_bdev+0x358/0x544 [ 209.527491][ T6113] gfs2_get_tree+0x54/0x1b4 [ 209.528197][ T6113] vfs_get_tree+0x90/0x274 [ 209.528902][ T6113] do_new_mount+0x228/0x810 [ 209.529587][ T6113] path_mount+0x5b4/0x1000 [ 209.530240][ T6113] __arm64_sys_mount+0x514/0x5e4 [ 209.530950][ T6113] invoke_syscall+0x98/0x2b8 [ 209.531653][ T6113] el0_svc_common+0x138/0x258 [ 209.532337][ T6113] do_el0_svc+0x58/0x14c [ 209.532950][ T6113] el0_svc+0x78/0x1e0 [ 209.533559][ T6113] el0t_64_sync_handler+0xcc/0xe4 [ 209.534380][ T6113] el0t_64_sync+0x1a0/0x1a4 [ 209.536806][ T6113] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.538791][ T6113] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.674810][ T6115] loop1: detected capacity change from 0 to 32768 [ 209.682160][ T6115] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.683407][ T6115] CPU: 0 PID: 6115 Comm: syz.1.571 Not tainted syzkaller #0 [ 209.684506][ T6115] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 209.686068][ T6115] Call trace: [ 209.686535][ T6115] dump_backtrace+0x0/0x43c [ 209.687219][ T6115] show_stack+0x2c/0x3c [ 209.687885][ T6115] __dump_stack+0x30/0x40 [ 209.688589][ T6115] dump_stack_lvl+0xf8/0x160 [ 209.689291][ T6115] dump_stack+0x1c/0x5c [ 209.689952][ T6115] sysfs_create_dir_ns+0x22c/0x24c [ 209.690773][ T6115] kobject_add_internal+0x590/0xc54 [ 209.691582][ T6115] kobject_init_and_add+0x118/0x17c [ 209.692364][ T6115] gfs2_sys_fs_add+0x1dc/0x3d8 [ 209.693103][ T6115] gfs2_fill_super+0xdac/0x19e0 [ 209.693891][ T6115] get_tree_bdev+0x358/0x544 [ 209.694623][ T6115] gfs2_get_tree+0x54/0x1b4 [ 209.695314][ T6115] vfs_get_tree+0x90/0x274 [ 209.696017][ T6115] do_new_mount+0x228/0x810 [ 209.696677][ T6115] path_mount+0x5b4/0x1000 [ 209.697360][ T6115] __arm64_sys_mount+0x514/0x5e4 [ 209.698092][ T6115] invoke_syscall+0x98/0x2b8 [ 209.698726][ T6115] el0_svc_common+0x138/0x258 [ 209.699469][ T6115] do_el0_svc+0x58/0x14c [ 209.700174][ T6115] el0_svc+0x78/0x1e0 [ 209.700809][ T6115] el0t_64_sync_handler+0xcc/0xe4 [ 209.701590][ T6115] el0t_64_sync+0x1a0/0x1a4 [ 209.702774][ T6115] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.705112][ T6115] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.840450][ T6117] loop1: detected capacity change from 0 to 32768 [ 209.848867][ T6117] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.850159][ T6117] CPU: 0 PID: 6117 Comm: syz.1.572 Not tainted syzkaller #0 [ 209.851367][ T6117] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 209.853030][ T6117] Call trace: [ 209.853576][ T6117] dump_backtrace+0x0/0x43c [ 209.854256][ T6117] show_stack+0x2c/0x3c [ 209.854938][ T6117] __dump_stack+0x30/0x40 [ 209.855638][ T6117] dump_stack_lvl+0xf8/0x160 [ 209.856310][ T6117] dump_stack+0x1c/0x5c [ 209.856926][ T6117] sysfs_create_dir_ns+0x22c/0x24c [ 209.857748][ T6117] kobject_add_internal+0x590/0xc54 [ 209.858541][ T6117] kobject_init_and_add+0x118/0x17c [ 209.859343][ T6117] gfs2_sys_fs_add+0x1dc/0x3d8 [ 209.860070][ T6117] gfs2_fill_super+0xdac/0x19e0 [ 209.860806][ T6117] get_tree_bdev+0x358/0x544 [ 209.861534][ T6117] gfs2_get_tree+0x54/0x1b4 [ 209.862225][ T6117] vfs_get_tree+0x90/0x274 [ 209.862878][ T6117] do_new_mount+0x228/0x810 [ 209.863582][ T6117] path_mount+0x5b4/0x1000 [ 209.864262][ T6117] __arm64_sys_mount+0x514/0x5e4 [ 209.865053][ T6117] invoke_syscall+0x98/0x2b8 [ 209.865747][ T6117] el0_svc_common+0x138/0x258 [ 209.866461][ T6117] do_el0_svc+0x58/0x14c [ 209.867079][ T6117] el0_svc+0x78/0x1e0 [ 209.867735][ T6117] el0t_64_sync_handler+0xcc/0xe4 [ 209.868493][ T6117] el0t_64_sync+0x1a0/0x1a4 [ 209.869429][ T6117] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.871477][ T6117] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.003609][ T6119] loop1: detected capacity change from 0 to 32768 [ 210.051118][ T6119] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.052339][ T6119] CPU: 0 PID: 6119 Comm: syz.1.573 Not tainted syzkaller #0 [ 210.053453][ T6119] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 210.054914][ T6119] Call trace: [ 210.055372][ T6119] dump_backtrace+0x0/0x43c [ 210.056048][ T6119] show_stack+0x2c/0x3c [ 210.056671][ T6119] __dump_stack+0x30/0x40 [ 210.057286][ T6119] dump_stack_lvl+0xf8/0x160 [ 210.057953][ T6119] dump_stack+0x1c/0x5c [ 210.058547][ T6119] sysfs_create_dir_ns+0x22c/0x24c [ 210.059276][ T6119] kobject_add_internal+0x590/0xc54 [ 210.060018][ T6119] kobject_init_and_add+0x118/0x17c [ 210.060814][ T6119] gfs2_sys_fs_add+0x1dc/0x3d8 [ 210.061540][ T6119] gfs2_fill_super+0xdac/0x19e0 [ 210.062239][ T6119] get_tree_bdev+0x358/0x544 [ 210.062929][ T6119] gfs2_get_tree+0x54/0x1b4 [ 210.063614][ T6119] vfs_get_tree+0x90/0x274 [ 210.064233][ T6119] do_new_mount+0x228/0x810 [ 210.064887][ T6119] path_mount+0x5b4/0x1000 [ 210.065567][ T6119] __arm64_sys_mount+0x514/0x5e4 [ 210.066268][ T6119] invoke_syscall+0x98/0x2b8 [ 210.066985][ T6119] el0_svc_common+0x138/0x258 [ 210.067669][ T6119] do_el0_svc+0x58/0x14c [ 210.068272][ T6119] el0_svc+0x78/0x1e0 [ 210.068852][ T6119] el0t_64_sync_handler+0xcc/0xe4 [ 210.069594][ T6119] el0t_64_sync+0x1a0/0x1a4 [ 210.071729][ T6119] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.073855][ T6119] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.211374][ T6121] loop1: detected capacity change from 0 to 32768 [ 210.219715][ T6121] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.220997][ T6121] CPU: 1 PID: 6121 Comm: syz.1.574 Not tainted syzkaller #0 [ 210.222116][ T6121] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 210.223594][ T6121] Call trace: [ 210.224067][ T6121] dump_backtrace+0x0/0x43c [ 210.224768][ T6121] show_stack+0x2c/0x3c [ 210.225369][ T6121] __dump_stack+0x30/0x40 [ 210.226008][ T6121] dump_stack_lvl+0xf8/0x160 [ 210.226698][ T6121] dump_stack+0x1c/0x5c [ 210.227315][ T6121] sysfs_create_dir_ns+0x22c/0x24c [ 210.228116][ T6121] kobject_add_internal+0x590/0xc54 [ 210.228856][ T6121] kobject_init_and_add+0x118/0x17c [ 210.229639][ T6121] gfs2_sys_fs_add+0x1dc/0x3d8 [ 210.230329][ T6121] gfs2_fill_super+0xdac/0x19e0 [ 210.231053][ T6121] get_tree_bdev+0x358/0x544 [ 210.231759][ T6121] gfs2_get_tree+0x54/0x1b4 [ 210.232451][ T6121] vfs_get_tree+0x90/0x274 [ 210.233076][ T6121] do_new_mount+0x228/0x810 [ 210.233780][ T6121] path_mount+0x5b4/0x1000 [ 210.234490][ T6121] __arm64_sys_mount+0x514/0x5e4 [ 210.235322][ T6121] invoke_syscall+0x98/0x2b8 [ 210.236054][ T6121] el0_svc_common+0x138/0x258 [ 210.236765][ T6121] do_el0_svc+0x58/0x14c [ 210.237350][ T6121] el0_svc+0x78/0x1e0 [ 210.237966][ T6121] el0t_64_sync_handler+0xcc/0xe4 [ 210.238701][ T6121] el0t_64_sync+0x1a0/0x1a4 [ 210.239657][ T6121] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.241684][ T6121] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.381832][ T6123] loop1: detected capacity change from 0 to 32768 [ 210.426612][ T6123] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.428261][ T6123] CPU: 1 PID: 6123 Comm: syz.1.575 Not tainted syzkaller #0 [ 210.429476][ T6123] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 210.431054][ T6123] Call trace: [ 210.431565][ T6123] dump_backtrace+0x0/0x43c [ 210.432280][ T6123] show_stack+0x2c/0x3c [ 210.432917][ T6123] __dump_stack+0x30/0x40 [ 210.433532][ T6123] dump_stack_lvl+0xf8/0x160 [ 210.434227][ T6123] dump_stack+0x1c/0x5c [ 210.434933][ T6123] sysfs_create_dir_ns+0x22c/0x24c [ 210.435686][ T6123] kobject_add_internal+0x590/0xc54 [ 210.436499][ T6123] kobject_init_and_add+0x118/0x17c [ 210.437338][ T6123] gfs2_sys_fs_add+0x1dc/0x3d8 [ 210.438034][ T6123] gfs2_fill_super+0xdac/0x19e0 [ 210.438740][ T6123] get_tree_bdev+0x358/0x544 [ 210.439461][ T6123] gfs2_get_tree+0x54/0x1b4 [ 210.440051][ T6123] vfs_get_tree+0x90/0x274 [ 210.440714][ T6123] do_new_mount+0x228/0x810 [ 210.441382][ T6123] path_mount+0x5b4/0x1000 [ 210.442058][ T6123] __arm64_sys_mount+0x514/0x5e4 [ 210.442792][ T6123] invoke_syscall+0x98/0x2b8 [ 210.443490][ T6123] el0_svc_common+0x138/0x258 [ 210.444178][ T6123] do_el0_svc+0x58/0x14c [ 210.444766][ T6123] el0_svc+0x78/0x1e0 [ 210.445327][ T6123] el0t_64_sync_handler+0xcc/0xe4 [ 210.446096][ T6123] el0t_64_sync+0x1a0/0x1a4 [ 210.448406][ T6123] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.450403][ T6123] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.630566][ T6125] loop1: detected capacity change from 0 to 32768 [ 210.674744][ T6125] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.676220][ T6125] CPU: 0 PID: 6125 Comm: syz.1.576 Not tainted syzkaller #0 [ 210.677401][ T6125] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 210.679014][ T6125] Call trace: [ 210.679532][ T6125] dump_backtrace+0x0/0x43c [ 210.680207][ T6125] show_stack+0x2c/0x3c [ 210.680837][ T6125] __dump_stack+0x30/0x40 [ 210.681494][ T6125] dump_stack_lvl+0xf8/0x160 [ 210.682166][ T6125] dump_stack+0x1c/0x5c [ 210.682837][ T6125] sysfs_create_dir_ns+0x22c/0x24c [ 210.683642][ T6125] kobject_add_internal+0x590/0xc54 [ 210.684441][ T6125] kobject_init_and_add+0x118/0x17c [ 210.685304][ T6125] gfs2_sys_fs_add+0x1dc/0x3d8 [ 210.686068][ T6125] gfs2_fill_super+0xdac/0x19e0 [ 210.686835][ T6125] get_tree_bdev+0x358/0x544 [ 210.687592][ T6125] gfs2_get_tree+0x54/0x1b4 [ 210.688307][ T6125] vfs_get_tree+0x90/0x274 [ 210.688942][ T6125] do_new_mount+0x228/0x810 [ 210.689594][ T6125] path_mount+0x5b4/0x1000 [ 210.690274][ T6125] __arm64_sys_mount+0x514/0x5e4 [ 210.691060][ T6125] invoke_syscall+0x98/0x2b8 [ 210.691787][ T6125] el0_svc_common+0x138/0x258 [ 210.692509][ T6125] do_el0_svc+0x58/0x14c [ 210.693199][ T6125] el0_svc+0x78/0x1e0 [ 210.693758][ T6125] el0t_64_sync_handler+0xcc/0xe4 [ 210.694538][ T6125] el0t_64_sync+0x1a0/0x1a4 [ 210.697107][ T6125] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.699038][ T6125] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.833372][ T6127] loop1: detected capacity change from 0 to 32768 [ 210.840723][ T6127] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.841897][ T6127] CPU: 1 PID: 6127 Comm: syz.1.577 Not tainted syzkaller #0 [ 210.843066][ T6127] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 210.844629][ T6127] Call trace: [ 210.845104][ T6127] dump_backtrace+0x0/0x43c [ 210.845817][ T6127] show_stack+0x2c/0x3c [ 210.846568][ T6127] __dump_stack+0x30/0x40 [ 210.847235][ T6127] dump_stack_lvl+0xf8/0x160 [ 210.847942][ T6127] dump_stack+0x1c/0x5c [ 210.848577][ T6127] sysfs_create_dir_ns+0x22c/0x24c [ 210.849368][ T6127] kobject_add_internal+0x590/0xc54 [ 210.850128][ T6127] kobject_init_and_add+0x118/0x17c [ 210.850899][ T6127] gfs2_sys_fs_add+0x1dc/0x3d8 [ 210.851553][ T6127] gfs2_fill_super+0xdac/0x19e0 [ 210.852283][ T6127] get_tree_bdev+0x358/0x544 [ 210.852976][ T6127] gfs2_get_tree+0x54/0x1b4 [ 210.853674][ T6127] vfs_get_tree+0x90/0x274 [ 210.854337][ T6127] do_new_mount+0x228/0x810 [ 210.855030][ T6127] path_mount+0x5b4/0x1000 [ 210.855712][ T6127] __arm64_sys_mount+0x514/0x5e4 [ 210.856446][ T6127] invoke_syscall+0x98/0x2b8 [ 210.857216][ T6127] el0_svc_common+0x138/0x258 [ 210.857937][ T6127] do_el0_svc+0x58/0x14c [ 210.858551][ T6127] el0_svc+0x78/0x1e0 [ 210.859204][ T6127] el0t_64_sync_handler+0xcc/0xe4 [ 210.859954][ T6127] el0t_64_sync+0x1a0/0x1a4 [ 210.860855][ T6127] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.862677][ T6127] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.994394][ T6129] loop1: detected capacity change from 0 to 32768 [ 211.081250][ T6129] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.082466][ T6129] CPU: 0 PID: 6129 Comm: syz.1.578 Not tainted syzkaller #0 [ 211.083520][ T6129] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 211.085005][ T6129] Call trace: [ 211.085509][ T6129] dump_backtrace+0x0/0x43c [ 211.086183][ T6129] show_stack+0x2c/0x3c [ 211.086825][ T6129] __dump_stack+0x30/0x40 [ 211.087488][ T6129] dump_stack_lvl+0xf8/0x160 [ 211.088170][ T6129] dump_stack+0x1c/0x5c [ 211.088779][ T6129] sysfs_create_dir_ns+0x22c/0x24c [ 211.089579][ T6129] kobject_add_internal+0x590/0xc54 [ 211.090352][ T6129] kobject_init_and_add+0x118/0x17c [ 211.091235][ T6129] gfs2_sys_fs_add+0x1dc/0x3d8 [ 211.092056][ T6129] gfs2_fill_super+0xdac/0x19e0 [ 211.092862][ T6129] get_tree_bdev+0x358/0x544 [ 211.093566][ T6129] gfs2_get_tree+0x54/0x1b4 [ 211.094248][ T6129] vfs_get_tree+0x90/0x274 [ 211.094905][ T6129] do_new_mount+0x228/0x810 [ 211.095647][ T6129] path_mount+0x5b4/0x1000 [ 211.096364][ T6129] __arm64_sys_mount+0x514/0x5e4 [ 211.097118][ T6129] invoke_syscall+0x98/0x2b8 [ 211.097836][ T6129] el0_svc_common+0x138/0x258 [ 211.098542][ T6129] do_el0_svc+0x58/0x14c [ 211.099230][ T6129] el0_svc+0x78/0x1e0 [ 211.099898][ T6129] el0t_64_sync_handler+0xcc/0xe4 [ 211.100622][ T6129] el0t_64_sync+0x1a0/0x1a4 [ 211.103360][ T6129] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.105562][ T6129] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.239104][ T6131] loop1: detected capacity change from 0 to 32768 [ 211.276666][ T6131] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.277889][ T6131] CPU: 0 PID: 6131 Comm: syz.1.579 Not tainted syzkaller #0 [ 211.279040][ T6131] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 211.280589][ T6131] Call trace: [ 211.281054][ T6131] dump_backtrace+0x0/0x43c [ 211.281700][ T6131] show_stack+0x2c/0x3c [ 211.282323][ T6131] __dump_stack+0x30/0x40 [ 211.282938][ T6131] dump_stack_lvl+0xf8/0x160 [ 211.283609][ T6131] dump_stack+0x1c/0x5c [ 211.284207][ T6131] sysfs_create_dir_ns+0x22c/0x24c [ 211.284953][ T6131] kobject_add_internal+0x590/0xc54 [ 211.285706][ T6131] kobject_init_and_add+0x118/0x17c [ 211.286516][ T6131] gfs2_sys_fs_add+0x1dc/0x3d8 [ 211.287232][ T6131] gfs2_fill_super+0xdac/0x19e0 [ 211.287994][ T6131] get_tree_bdev+0x358/0x544 [ 211.288693][ T6131] gfs2_get_tree+0x54/0x1b4 [ 211.289409][ T6131] vfs_get_tree+0x90/0x274 [ 211.290027][ T6131] do_new_mount+0x228/0x810 [ 211.290750][ T6131] path_mount+0x5b4/0x1000 [ 211.291400][ T6131] __arm64_sys_mount+0x514/0x5e4 [ 211.292164][ T6131] invoke_syscall+0x98/0x2b8 [ 211.292857][ T6131] el0_svc_common+0x138/0x258 [ 211.293559][ T6131] do_el0_svc+0x58/0x14c [ 211.294200][ T6131] el0_svc+0x78/0x1e0 [ 211.294773][ T6131] el0t_64_sync_handler+0xcc/0xe4 [ 211.295513][ T6131] el0t_64_sync+0x1a0/0x1a4 [ 211.296291][ T6131] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.298220][ T6131] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.430116][ T6133] loop1: detected capacity change from 0 to 32768 [ 211.500505][ T6133] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.501676][ T6133] CPU: 1 PID: 6133 Comm: syz.1.580 Not tainted syzkaller #0 [ 211.502773][ T6133] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 211.504243][ T6133] Call trace: [ 211.504702][ T6133] dump_backtrace+0x0/0x43c [ 211.505377][ T6133] show_stack+0x2c/0x3c [ 211.506044][ T6133] __dump_stack+0x30/0x40 [ 211.506762][ T6133] dump_stack_lvl+0xf8/0x160 [ 211.507482][ T6133] dump_stack+0x1c/0x5c [ 211.508121][ T6133] sysfs_create_dir_ns+0x22c/0x24c [ 211.508910][ T6133] kobject_add_internal+0x590/0xc54 [ 211.509698][ T6133] kobject_init_and_add+0x118/0x17c [ 211.510463][ T6133] gfs2_sys_fs_add+0x1dc/0x3d8 [ 211.511191][ T6133] gfs2_fill_super+0xdac/0x19e0 [ 211.511958][ T6133] get_tree_bdev+0x358/0x544 [ 211.512663][ T6133] gfs2_get_tree+0x54/0x1b4 [ 211.513323][ T6133] vfs_get_tree+0x90/0x274 [ 211.514021][ T6133] do_new_mount+0x228/0x810 [ 211.514728][ T6133] path_mount+0x5b4/0x1000 [ 211.515413][ T6133] __arm64_sys_mount+0x514/0x5e4 [ 211.516178][ T6133] invoke_syscall+0x98/0x2b8 [ 211.516959][ T6133] el0_svc_common+0x138/0x258 [ 211.517660][ T6133] do_el0_svc+0x58/0x14c [ 211.518318][ T6133] el0_svc+0x78/0x1e0 [ 211.518934][ T6133] el0t_64_sync_handler+0xcc/0xe4 [ 211.519691][ T6133] el0t_64_sync+0x1a0/0x1a4 [ 211.521809][ T6133] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.523899][ T6133] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.655431][ T6135] loop1: detected capacity change from 0 to 32768 [ 211.662745][ T6135] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.663955][ T6135] CPU: 1 PID: 6135 Comm: syz.1.581 Not tainted syzkaller #0 [ 211.665133][ T6135] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 211.666722][ T6135] Call trace: [ 211.667242][ T6135] dump_backtrace+0x0/0x43c [ 211.667957][ T6135] show_stack+0x2c/0x3c [ 211.668591][ T6135] __dump_stack+0x30/0x40 [ 211.669301][ T6135] dump_stack_lvl+0xf8/0x160 [ 211.669986][ T6135] dump_stack+0x1c/0x5c [ 211.670604][ T6135] sysfs_create_dir_ns+0x22c/0x24c [ 211.671353][ T6135] kobject_add_internal+0x590/0xc54 [ 211.672202][ T6135] kobject_init_and_add+0x118/0x17c [ 211.672983][ T6135] gfs2_sys_fs_add+0x1dc/0x3d8 [ 211.673718][ T6135] gfs2_fill_super+0xdac/0x19e0 [ 211.674470][ T6135] get_tree_bdev+0x358/0x544 [ 211.675221][ T6135] gfs2_get_tree+0x54/0x1b4 [ 211.675855][ T6135] vfs_get_tree+0x90/0x274 [ 211.676549][ T6135] do_new_mount+0x228/0x810 [ 211.677237][ T6135] path_mount+0x5b4/0x1000 [ 211.677892][ T6135] __arm64_sys_mount+0x514/0x5e4 [ 211.678643][ T6135] invoke_syscall+0x98/0x2b8 [ 211.679334][ T6135] el0_svc_common+0x138/0x258 [ 211.680079][ T6135] do_el0_svc+0x58/0x14c [ 211.680710][ T6135] el0_svc+0x78/0x1e0 [ 211.681294][ T6135] el0t_64_sync_handler+0xcc/0xe4 [ 211.682052][ T6135] el0t_64_sync+0x1a0/0x1a4 [ 211.684354][ T6135] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.686491][ T6135] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.827969][ T6137] loop1: detected capacity change from 0 to 32768 [ 211.870659][ T6137] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.871887][ T6137] CPU: 1 PID: 6137 Comm: syz.1.582 Not tainted syzkaller #0 [ 211.873054][ T6137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 211.874576][ T6137] Call trace: [ 211.875126][ T6137] dump_backtrace+0x0/0x43c [ 211.875821][ T6137] show_stack+0x2c/0x3c [ 211.876466][ T6137] __dump_stack+0x30/0x40 [ 211.877171][ T6137] dump_stack_lvl+0xf8/0x160 [ 211.877870][ T6137] dump_stack+0x1c/0x5c [ 211.878483][ T6137] sysfs_create_dir_ns+0x22c/0x24c [ 211.879284][ T6137] kobject_add_internal+0x590/0xc54 [ 211.880069][ T6137] kobject_init_and_add+0x118/0x17c [ 211.880860][ T6137] gfs2_sys_fs_add+0x1dc/0x3d8 [ 211.881604][ T6137] gfs2_fill_super+0xdac/0x19e0 [ 211.882391][ T6137] get_tree_bdev+0x358/0x544 [ 211.883077][ T6137] gfs2_get_tree+0x54/0x1b4 [ 211.883769][ T6137] vfs_get_tree+0x90/0x274 [ 211.884459][ T6137] do_new_mount+0x228/0x810 [ 211.885082][ T6137] path_mount+0x5b4/0x1000 [ 211.885759][ T6137] __arm64_sys_mount+0x514/0x5e4 [ 211.886495][ T6137] invoke_syscall+0x98/0x2b8 [ 211.887133][ T6137] el0_svc_common+0x138/0x258 [ 211.887865][ T6137] do_el0_svc+0x58/0x14c [ 211.888500][ T6137] el0_svc+0x78/0x1e0 [ 211.889103][ T6137] el0t_64_sync_handler+0xcc/0xe4 [ 211.889902][ T6137] el0t_64_sync+0x1a0/0x1a4 [ 211.891219][ T6137] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.893263][ T6137] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.029502][ T6139] loop1: detected capacity change from 0 to 32768 [ 212.037680][ T6139] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.038890][ T6139] CPU: 1 PID: 6139 Comm: syz.1.583 Not tainted syzkaller #0 [ 212.039999][ T6139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 212.041539][ T6139] Call trace: [ 212.042033][ T6139] dump_backtrace+0x0/0x43c [ 212.042689][ T6139] show_stack+0x2c/0x3c [ 212.043288][ T6139] __dump_stack+0x30/0x40 [ 212.043971][ T6139] dump_stack_lvl+0xf8/0x160 [ 212.044630][ T6139] dump_stack+0x1c/0x5c [ 212.045272][ T6139] sysfs_create_dir_ns+0x22c/0x24c [ 212.046048][ T6139] kobject_add_internal+0x590/0xc54 [ 212.046852][ T6139] kobject_init_and_add+0x118/0x17c [ 212.047669][ T6139] gfs2_sys_fs_add+0x1dc/0x3d8 [ 212.048429][ T6139] gfs2_fill_super+0xdac/0x19e0 [ 212.049186][ T6139] get_tree_bdev+0x358/0x544 [ 212.049865][ T6139] gfs2_get_tree+0x54/0x1b4 [ 212.050524][ T6139] vfs_get_tree+0x90/0x274 [ 212.051220][ T6139] do_new_mount+0x228/0x810 [ 212.051861][ T6139] path_mount+0x5b4/0x1000 [ 212.052578][ T6139] __arm64_sys_mount+0x514/0x5e4 [ 212.053355][ T6139] invoke_syscall+0x98/0x2b8 [ 212.054091][ T6139] el0_svc_common+0x138/0x258 [ 212.054811][ T6139] do_el0_svc+0x58/0x14c [ 212.055446][ T6139] el0_svc+0x78/0x1e0 [ 212.056100][ T6139] el0t_64_sync_handler+0xcc/0xe4 [ 212.056874][ T6139] el0t_64_sync+0x1a0/0x1a4 [ 212.059133][ T6139] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.061294][ T6139] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.209147][ T6141] loop1: detected capacity change from 0 to 32768 [ 212.246694][ T6141] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.247992][ T6141] CPU: 0 PID: 6141 Comm: syz.1.584 Not tainted syzkaller #0 [ 212.249191][ T6141] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 212.250597][ T6141] Call trace: [ 212.251061][ T6141] dump_backtrace+0x0/0x43c [ 212.251706][ T6141] show_stack+0x2c/0x3c [ 212.252291][ T6141] __dump_stack+0x30/0x40 [ 212.252901][ T6141] dump_stack_lvl+0xf8/0x160 [ 212.253540][ T6141] dump_stack+0x1c/0x5c [ 212.254180][ T6141] sysfs_create_dir_ns+0x22c/0x24c [ 212.254906][ T6141] kobject_add_internal+0x590/0xc54 [ 212.255685][ T6141] kobject_init_and_add+0x118/0x17c [ 212.256487][ T6141] gfs2_sys_fs_add+0x1dc/0x3d8 [ 212.257181][ T6141] gfs2_fill_super+0xdac/0x19e0 [ 212.257896][ T6141] get_tree_bdev+0x358/0x544 [ 212.258639][ T6141] gfs2_get_tree+0x54/0x1b4 [ 212.259352][ T6141] vfs_get_tree+0x90/0x274 [ 212.260015][ T6141] do_new_mount+0x228/0x810 [ 212.260683][ T6141] path_mount+0x5b4/0x1000 [ 212.261367][ T6141] __arm64_sys_mount+0x514/0x5e4 [ 212.262047][ T6141] invoke_syscall+0x98/0x2b8 [ 212.262788][ T6141] el0_svc_common+0x138/0x258 [ 212.263456][ T6141] do_el0_svc+0x58/0x14c [ 212.264146][ T6141] el0_svc+0x78/0x1e0 [ 212.264762][ T6141] el0t_64_sync_handler+0xcc/0xe4 [ 212.265544][ T6141] el0t_64_sync+0x1a0/0x1a4 [ 212.267917][ T6141] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.269996][ T6141] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.406444][ T6143] loop1: detected capacity change from 0 to 32768 [ 212.413651][ T6143] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.414859][ T6143] CPU: 1 PID: 6143 Comm: syz.1.585 Not tainted syzkaller #0 [ 212.416009][ T6143] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 212.417680][ T6143] Call trace: [ 212.418182][ T6143] dump_backtrace+0x0/0x43c [ 212.418894][ T6143] show_stack+0x2c/0x3c [ 212.419518][ T6143] __dump_stack+0x30/0x40 [ 212.420204][ T6143] dump_stack_lvl+0xf8/0x160 [ 212.420892][ T6143] dump_stack+0x1c/0x5c [ 212.421513][ T6143] sysfs_create_dir_ns+0x22c/0x24c [ 212.422283][ T6143] kobject_add_internal+0x590/0xc54 [ 212.423038][ T6143] kobject_init_and_add+0x118/0x17c [ 212.423823][ T6143] gfs2_sys_fs_add+0x1dc/0x3d8 [ 212.424553][ T6143] gfs2_fill_super+0xdac/0x19e0 [ 212.425277][ T6143] get_tree_bdev+0x358/0x544 [ 212.425989][ T6143] gfs2_get_tree+0x54/0x1b4 [ 212.426694][ T6143] vfs_get_tree+0x90/0x274 [ 212.427387][ T6143] do_new_mount+0x228/0x810 [ 212.428033][ T6143] path_mount+0x5b4/0x1000 [ 212.428705][ T6143] __arm64_sys_mount+0x514/0x5e4 [ 212.429438][ T6143] invoke_syscall+0x98/0x2b8 [ 212.430134][ T6143] el0_svc_common+0x138/0x258 [ 212.430801][ T6143] do_el0_svc+0x58/0x14c [ 212.431422][ T6143] el0_svc+0x78/0x1e0 [ 212.431968][ T6143] el0t_64_sync_handler+0xcc/0xe4 [ 212.432693][ T6143] el0t_64_sync+0x1a0/0x1a4 [ 212.433453][ T6143] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.435393][ T6143] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.569642][ T6145] loop1: detected capacity change from 0 to 32768 [ 212.619566][ T6145] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.620781][ T6145] CPU: 1 PID: 6145 Comm: syz.1.586 Not tainted syzkaller #0 [ 212.621956][ T6145] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 212.623415][ T6145] Call trace: [ 212.623888][ T6145] dump_backtrace+0x0/0x43c [ 212.624550][ T6145] show_stack+0x2c/0x3c [ 212.625191][ T6145] __dump_stack+0x30/0x40 [ 212.625885][ T6145] dump_stack_lvl+0xf8/0x160 [ 212.626547][ T6145] dump_stack+0x1c/0x5c [ 212.627193][ T6145] sysfs_create_dir_ns+0x22c/0x24c [ 212.628025][ T6145] kobject_add_internal+0x590/0xc54 [ 212.628849][ T6145] kobject_init_and_add+0x118/0x17c [ 212.629652][ T6145] gfs2_sys_fs_add+0x1dc/0x3d8 [ 212.630434][ T6145] gfs2_fill_super+0xdac/0x19e0 [ 212.631244][ T6145] get_tree_bdev+0x358/0x544 [ 212.631957][ T6145] gfs2_get_tree+0x54/0x1b4 [ 212.632618][ T6145] vfs_get_tree+0x90/0x274 [ 212.633273][ T6145] do_new_mount+0x228/0x810 [ 212.633971][ T6145] path_mount+0x5b4/0x1000 [ 212.634656][ T6145] __arm64_sys_mount+0x514/0x5e4 [ 212.635422][ T6145] invoke_syscall+0x98/0x2b8 [ 212.636046][ T6145] el0_svc_common+0x138/0x258 [ 212.636746][ T6145] do_el0_svc+0x58/0x14c [ 212.637367][ T6145] el0_svc+0x78/0x1e0 [ 212.637987][ T6145] el0t_64_sync_handler+0xcc/0xe4 [ 212.638698][ T6145] el0t_64_sync+0x1a0/0x1a4 [ 212.639659][ T6145] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.641549][ T6145] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.774922][ T6147] loop1: detected capacity change from 0 to 32768 [ 212.782872][ T6147] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.784129][ T6147] CPU: 0 PID: 6147 Comm: syz.1.587 Not tainted syzkaller #0 [ 212.785319][ T6147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 212.786932][ T6147] Call trace: [ 212.787481][ T6147] dump_backtrace+0x0/0x43c [ 212.788206][ T6147] show_stack+0x2c/0x3c [ 212.788859][ T6147] __dump_stack+0x30/0x40 [ 212.789571][ T6147] dump_stack_lvl+0xf8/0x160 [ 212.790244][ T6147] dump_stack+0x1c/0x5c [ 212.790894][ T6147] sysfs_create_dir_ns+0x22c/0x24c [ 212.791703][ T6147] kobject_add_internal+0x590/0xc54 [ 212.792444][ T6147] kobject_init_and_add+0x118/0x17c [ 212.793217][ T6147] gfs2_sys_fs_add+0x1dc/0x3d8 [ 212.793917][ T6147] gfs2_fill_super+0xdac/0x19e0 [ 212.794636][ T6147] get_tree_bdev+0x358/0x544 [ 212.795301][ T6147] gfs2_get_tree+0x54/0x1b4 [ 212.795948][ T6147] vfs_get_tree+0x90/0x274 [ 212.796568][ T6147] do_new_mount+0x228/0x810 [ 212.797163][ T6147] path_mount+0x5b4/0x1000 [ 212.797862][ T6147] __arm64_sys_mount+0x514/0x5e4 [ 212.798570][ T6147] invoke_syscall+0x98/0x2b8 [ 212.799247][ T6147] el0_svc_common+0x138/0x258 [ 212.799953][ T6147] do_el0_svc+0x58/0x14c [ 212.800512][ T6147] el0_svc+0x78/0x1e0 [ 212.801086][ T6147] el0t_64_sync_handler+0xcc/0xe4 [ 212.801863][ T6147] el0t_64_sync+0x1a0/0x1a4 [ 212.803439][ T6147] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.805648][ T6147] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.957237][ T6149] loop1: detected capacity change from 0 to 32768 [ 212.964812][ T6149] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.968516][ T6149] CPU: 1 PID: 6149 Comm: syz.1.588 Not tainted syzkaller #0 [ 212.969683][ T6149] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 212.971283][ T6149] Call trace: [ 212.971762][ T6149] dump_backtrace+0x0/0x43c [ 212.972490][ T6149] show_stack+0x2c/0x3c [ 212.973109][ T6149] __dump_stack+0x30/0x40 [ 212.973848][ T6149] dump_stack_lvl+0xf8/0x160 [ 212.974596][ T6149] dump_stack+0x1c/0x5c [ 212.975257][ T6149] sysfs_create_dir_ns+0x22c/0x24c [ 212.976039][ T6149] kobject_add_internal+0x590/0xc54 [ 212.976797][ T6149] kobject_init_and_add+0x118/0x17c [ 212.977562][ T6149] gfs2_sys_fs_add+0x1dc/0x3d8 [ 212.978290][ T6149] gfs2_fill_super+0xdac/0x19e0 [ 212.979030][ T6149] get_tree_bdev+0x358/0x544 [ 212.979740][ T6149] gfs2_get_tree+0x54/0x1b4 [ 212.980430][ T6149] vfs_get_tree+0x90/0x274 [ 212.981150][ T6149] do_new_mount+0x228/0x810 [ 212.981859][ T6149] path_mount+0x5b4/0x1000 [ 212.982577][ T6149] __arm64_sys_mount+0x514/0x5e4 [ 212.983299][ T6149] invoke_syscall+0x98/0x2b8 [ 212.983993][ T6149] el0_svc_common+0x138/0x258 [ 212.984723][ T6149] do_el0_svc+0x58/0x14c [ 212.985348][ T6149] el0_svc+0x78/0x1e0 [ 212.985964][ T6149] el0t_64_sync_handler+0xcc/0xe4 [ 212.986719][ T6149] el0t_64_sync+0x1a0/0x1a4 [ 212.989041][ T6149] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.991137][ T6149] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.124990][ T6151] loop1: detected capacity change from 0 to 32768 [ 213.210505][ T6151] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.211723][ T6151] CPU: 0 PID: 6151 Comm: syz.1.589 Not tainted syzkaller #0 [ 213.212879][ T6151] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 213.214441][ T6151] Call trace: [ 213.214931][ T6151] dump_backtrace+0x0/0x43c [ 213.215680][ T6151] show_stack+0x2c/0x3c [ 213.216282][ T6151] __dump_stack+0x30/0x40 [ 213.216978][ T6151] dump_stack_lvl+0xf8/0x160 [ 213.217609][ T6151] dump_stack+0x1c/0x5c [ 213.218188][ T6151] sysfs_create_dir_ns+0x22c/0x24c [ 213.218910][ T6151] kobject_add_internal+0x590/0xc54 [ 213.219667][ T6151] kobject_init_and_add+0x118/0x17c [ 213.220470][ T6151] gfs2_sys_fs_add+0x1dc/0x3d8 [ 213.221168][ T6151] gfs2_fill_super+0xdac/0x19e0 [ 213.221890][ T6151] get_tree_bdev+0x358/0x544 [ 213.222604][ T6151] gfs2_get_tree+0x54/0x1b4 [ 213.223323][ T6151] vfs_get_tree+0x90/0x274 [ 213.223973][ T6151] do_new_mount+0x228/0x810 [ 213.224759][ T6151] path_mount+0x5b4/0x1000 [ 213.225507][ T6151] __arm64_sys_mount+0x514/0x5e4 [ 213.226323][ T6151] invoke_syscall+0x98/0x2b8 [ 213.227045][ T6151] el0_svc_common+0x138/0x258 [ 213.227807][ T6151] do_el0_svc+0x58/0x14c [ 213.228459][ T6151] el0_svc+0x78/0x1e0 [ 213.229121][ T6151] el0t_64_sync_handler+0xcc/0xe4 [ 213.229962][ T6151] el0t_64_sync+0x1a0/0x1a4 [ 213.231077][ T6151] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.233131][ T6151] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.376136][ T6153] loop1: detected capacity change from 0 to 32768 [ 213.426702][ T6153] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.427864][ T6153] CPU: 0 PID: 6153 Comm: syz.1.590 Not tainted syzkaller #0 [ 213.429014][ T6153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 213.430562][ T6153] Call trace: [ 213.431109][ T6153] dump_backtrace+0x0/0x43c [ 213.431805][ T6153] show_stack+0x2c/0x3c [ 213.432402][ T6153] __dump_stack+0x30/0x40 [ 213.433029][ T6153] dump_stack_lvl+0xf8/0x160 [ 213.433640][ T6153] dump_stack+0x1c/0x5c [ 213.434267][ T6153] sysfs_create_dir_ns+0x22c/0x24c [ 213.435102][ T6153] kobject_add_internal+0x590/0xc54 [ 213.435894][ T6153] kobject_init_and_add+0x118/0x17c [ 213.436709][ T6153] gfs2_sys_fs_add+0x1dc/0x3d8 [ 213.437487][ T6153] gfs2_fill_super+0xdac/0x19e0 [ 213.438238][ T6153] get_tree_bdev+0x358/0x544 [ 213.438919][ T6153] gfs2_get_tree+0x54/0x1b4 [ 213.439578][ T6153] vfs_get_tree+0x90/0x274 [ 213.440204][ T6153] do_new_mount+0x228/0x810 [ 213.440904][ T6153] path_mount+0x5b4/0x1000 [ 213.441546][ T6153] __arm64_sys_mount+0x514/0x5e4 [ 213.442290][ T6153] invoke_syscall+0x98/0x2b8 [ 213.442981][ T6153] el0_svc_common+0x138/0x258 [ 213.443634][ T6153] do_el0_svc+0x58/0x14c [ 213.444251][ T6153] el0_svc+0x78/0x1e0 [ 213.444773][ T6153] el0t_64_sync_handler+0xcc/0xe4 [ 213.445460][ T6153] el0t_64_sync+0x1a0/0x1a4 [ 213.446278][ T6153] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.448102][ T6153] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.640883][ T6155] loop1: detected capacity change from 0 to 32768 [ 213.676849][ T6155] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.678111][ T6155] CPU: 0 PID: 6155 Comm: syz.1.591 Not tainted syzkaller #0 [ 213.679269][ T6155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 213.680766][ T6155] Call trace: [ 213.681284][ T6155] dump_backtrace+0x0/0x43c [ 213.681958][ T6155] show_stack+0x2c/0x3c [ 213.682597][ T6155] __dump_stack+0x30/0x40 [ 213.683231][ T6155] dump_stack_lvl+0xf8/0x160 [ 213.683945][ T6155] dump_stack+0x1c/0x5c [ 213.684635][ T6155] sysfs_create_dir_ns+0x22c/0x24c [ 213.685418][ T6155] kobject_add_internal+0x590/0xc54 [ 213.686219][ T6155] kobject_init_and_add+0x118/0x17c [ 213.686979][ T6155] gfs2_sys_fs_add+0x1dc/0x3d8 [ 213.687662][ T6155] gfs2_fill_super+0xdac/0x19e0 [ 213.688444][ T6155] get_tree_bdev+0x358/0x544 [ 213.689113][ T6155] gfs2_get_tree+0x54/0x1b4 [ 213.689772][ T6155] vfs_get_tree+0x90/0x274 [ 213.690437][ T6155] do_new_mount+0x228/0x810 [ 213.691120][ T6155] path_mount+0x5b4/0x1000 [ 213.691772][ T6155] __arm64_sys_mount+0x514/0x5e4 [ 213.692537][ T6155] invoke_syscall+0x98/0x2b8 [ 213.693181][ T6155] el0_svc_common+0x138/0x258 [ 213.693865][ T6155] do_el0_svc+0x58/0x14c [ 213.694498][ T6155] el0_svc+0x78/0x1e0 [ 213.695058][ T6155] el0t_64_sync_handler+0xcc/0xe4 [ 213.695763][ T6155] el0t_64_sync+0x1a0/0x1a4 [ 213.696681][ T6155] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.698706][ T6155] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.865570][ T6157] loop1: detected capacity change from 0 to 32768 [ 213.920863][ T6157] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.922087][ T6157] CPU: 1 PID: 6157 Comm: syz.1.592 Not tainted syzkaller #0 [ 213.923206][ T6157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 213.924761][ T6157] Call trace: [ 213.925255][ T6157] dump_backtrace+0x0/0x43c [ 213.925941][ T6157] show_stack+0x2c/0x3c [ 213.926560][ T6157] __dump_stack+0x30/0x40 [ 213.927215][ T6157] dump_stack_lvl+0xf8/0x160 [ 213.927921][ T6157] dump_stack+0x1c/0x5c [ 213.928487][ T6157] sysfs_create_dir_ns+0x22c/0x24c [ 213.929311][ T6157] kobject_add_internal+0x590/0xc54 [ 213.930182][ T6157] kobject_init_and_add+0x118/0x17c [ 213.931085][ T6157] gfs2_sys_fs_add+0x1dc/0x3d8 [ 213.931826][ T6157] gfs2_fill_super+0xdac/0x19e0 [ 213.932655][ T6157] get_tree_bdev+0x358/0x544 [ 213.933366][ T6157] gfs2_get_tree+0x54/0x1b4 [ 213.934111][ T6157] vfs_get_tree+0x90/0x274 [ 213.934784][ T6157] do_new_mount+0x228/0x810 [ 213.935494][ T6157] path_mount+0x5b4/0x1000 [ 213.936192][ T6157] __arm64_sys_mount+0x514/0x5e4 [ 213.936983][ T6157] invoke_syscall+0x98/0x2b8 [ 213.937683][ T6157] el0_svc_common+0x138/0x258 [ 213.938411][ T6157] do_el0_svc+0x58/0x14c [ 213.939048][ T6157] el0_svc+0x78/0x1e0 [ 213.939645][ T6157] el0t_64_sync_handler+0xcc/0xe4 [ 213.940454][ T6157] el0t_64_sync+0x1a0/0x1a4 [ 213.942881][ T6157] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.944931][ T6157] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:33 executed programs: 578 [ 214.080167][ T6159] loop1: detected capacity change from 0 to 32768 [ 214.120142][ T6159] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.121444][ T6159] CPU: 1 PID: 6159 Comm: syz.1.593 Not tainted syzkaller #0 [ 214.122637][ T6159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 214.124371][ T6159] Call trace: [ 214.124934][ T6159] dump_backtrace+0x0/0x43c [ 214.125643][ T6159] show_stack+0x2c/0x3c [ 214.126275][ T6159] __dump_stack+0x30/0x40 [ 214.126951][ T6159] dump_stack_lvl+0xf8/0x160 [ 214.127603][ T6159] dump_stack+0x1c/0x5c [ 214.128284][ T6159] sysfs_create_dir_ns+0x22c/0x24c [ 214.129117][ T6159] kobject_add_internal+0x590/0xc54 [ 214.129898][ T6159] kobject_init_and_add+0x118/0x17c [ 214.130733][ T6159] gfs2_sys_fs_add+0x1dc/0x3d8 [ 214.131468][ T6159] gfs2_fill_super+0xdac/0x19e0 [ 214.132219][ T6159] get_tree_bdev+0x358/0x544 [ 214.132954][ T6159] gfs2_get_tree+0x54/0x1b4 [ 214.133663][ T6159] vfs_get_tree+0x90/0x274 [ 214.134299][ T6159] do_new_mount+0x228/0x810 [ 214.134962][ T6159] path_mount+0x5b4/0x1000 [ 214.135699][ T6159] __arm64_sys_mount+0x514/0x5e4 [ 214.136414][ T6159] invoke_syscall+0x98/0x2b8 [ 214.137097][ T6159] el0_svc_common+0x138/0x258 [ 214.137802][ T6159] do_el0_svc+0x58/0x14c [ 214.138452][ T6159] el0_svc+0x78/0x1e0 [ 214.139073][ T6159] el0t_64_sync_handler+0xcc/0xe4 [ 214.139849][ T6159] el0t_64_sync+0x1a0/0x1a4 [ 214.142144][ T6159] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.144168][ T6159] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.280195][ T6161] loop1: detected capacity change from 0 to 32768 [ 214.287686][ T6161] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.288935][ T6161] CPU: 0 PID: 6161 Comm: syz.1.594 Not tainted syzkaller #0 [ 214.290076][ T6161] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 214.291479][ T6161] Call trace: [ 214.291959][ T6161] dump_backtrace+0x0/0x43c [ 214.292596][ T6161] show_stack+0x2c/0x3c [ 214.293225][ T6161] __dump_stack+0x30/0x40 [ 214.293883][ T6161] dump_stack_lvl+0xf8/0x160 [ 214.294532][ T6161] dump_stack+0x1c/0x5c [ 214.295109][ T6161] sysfs_create_dir_ns+0x22c/0x24c [ 214.295860][ T6161] kobject_add_internal+0x590/0xc54 [ 214.296562][ T6161] kobject_init_and_add+0x118/0x17c [ 214.297286][ T6161] gfs2_sys_fs_add+0x1dc/0x3d8 [ 214.297987][ T6161] gfs2_fill_super+0xdac/0x19e0 [ 214.298746][ T6161] get_tree_bdev+0x358/0x544 [ 214.299433][ T6161] gfs2_get_tree+0x54/0x1b4 [ 214.300068][ T6161] vfs_get_tree+0x90/0x274 [ 214.300723][ T6161] do_new_mount+0x228/0x810 [ 214.301434][ T6161] path_mount+0x5b4/0x1000 [ 214.302060][ T6161] __arm64_sys_mount+0x514/0x5e4 [ 214.302889][ T6161] invoke_syscall+0x98/0x2b8 [ 214.303617][ T6161] el0_svc_common+0x138/0x258 [ 214.304377][ T6161] do_el0_svc+0x58/0x14c [ 214.305018][ T6161] el0_svc+0x78/0x1e0 [ 214.305637][ T6161] el0t_64_sync_handler+0xcc/0xe4 [ 214.306445][ T6161] el0t_64_sync+0x1a0/0x1a4 [ 214.307259][ T6161] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.309174][ T6161] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.444853][ T6163] loop1: detected capacity change from 0 to 32768 [ 214.452350][ T6163] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.453613][ T6163] CPU: 1 PID: 6163 Comm: syz.1.595 Not tainted syzkaller #0 [ 214.454749][ T6163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 214.456334][ T6163] Call trace: [ 214.456807][ T6163] dump_backtrace+0x0/0x43c [ 214.457524][ T6163] show_stack+0x2c/0x3c [ 214.458119][ T6163] __dump_stack+0x30/0x40 [ 214.458779][ T6163] dump_stack_lvl+0xf8/0x160 [ 214.459497][ T6163] dump_stack+0x1c/0x5c [ 214.460186][ T6163] sysfs_create_dir_ns+0x22c/0x24c [ 214.461018][ T6163] kobject_add_internal+0x590/0xc54 [ 214.461842][ T6163] kobject_init_and_add+0x118/0x17c [ 214.462668][ T6163] gfs2_sys_fs_add+0x1dc/0x3d8 [ 214.463397][ T6163] gfs2_fill_super+0xdac/0x19e0 [ 214.464152][ T6163] get_tree_bdev+0x358/0x544 [ 214.464866][ T6163] gfs2_get_tree+0x54/0x1b4 [ 214.465541][ T6163] vfs_get_tree+0x90/0x274 [ 214.466192][ T6163] do_new_mount+0x228/0x810 [ 214.466871][ T6163] path_mount+0x5b4/0x1000 [ 214.467496][ T6163] __arm64_sys_mount+0x514/0x5e4 [ 214.468263][ T6163] invoke_syscall+0x98/0x2b8 [ 214.468951][ T6163] el0_svc_common+0x138/0x258 [ 214.469693][ T6163] do_el0_svc+0x58/0x14c [ 214.470349][ T6163] el0_svc+0x78/0x1e0 [ 214.470998][ T6163] el0t_64_sync_handler+0xcc/0xe4 [ 214.471781][ T6163] el0t_64_sync+0x1a0/0x1a4 [ 214.472990][ T6163] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.475318][ T6163] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.609927][ T6165] loop1: detected capacity change from 0 to 32768 [ 214.617446][ T6165] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.618690][ T6165] CPU: 1 PID: 6165 Comm: syz.1.596 Not tainted syzkaller #0 [ 214.619791][ T6165] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 214.621309][ T6165] Call trace: [ 214.621814][ T6165] dump_backtrace+0x0/0x43c [ 214.622480][ T6165] show_stack+0x2c/0x3c [ 214.623151][ T6165] __dump_stack+0x30/0x40 [ 214.623744][ T6165] dump_stack_lvl+0xf8/0x160 [ 214.624354][ T6165] dump_stack+0x1c/0x5c [ 214.625007][ T6165] sysfs_create_dir_ns+0x22c/0x24c [ 214.625843][ T6165] kobject_add_internal+0x590/0xc54 [ 214.626625][ T6165] kobject_init_and_add+0x118/0x17c [ 214.627433][ T6165] gfs2_sys_fs_add+0x1dc/0x3d8 [ 214.628133][ T6165] gfs2_fill_super+0xdac/0x19e0 [ 214.628869][ T6165] get_tree_bdev+0x358/0x544 [ 214.629550][ T6165] gfs2_get_tree+0x54/0x1b4 [ 214.630272][ T6165] vfs_get_tree+0x90/0x274 [ 214.630914][ T6165] do_new_mount+0x228/0x810 [ 214.631632][ T6165] path_mount+0x5b4/0x1000 [ 214.632290][ T6165] __arm64_sys_mount+0x514/0x5e4 [ 214.633029][ T6165] invoke_syscall+0x98/0x2b8 [ 214.633737][ T6165] el0_svc_common+0x138/0x258 [ 214.634458][ T6165] do_el0_svc+0x58/0x14c [ 214.635120][ T6165] el0_svc+0x78/0x1e0 [ 214.635717][ T6165] el0t_64_sync_handler+0xcc/0xe4 [ 214.636514][ T6165] el0t_64_sync+0x1a0/0x1a4 [ 214.638646][ T6165] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.640583][ T6165] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.814090][ T6167] loop1: detected capacity change from 0 to 32768 [ 214.908520][ T6167] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.909768][ T6167] CPU: 0 PID: 6167 Comm: syz.1.597 Not tainted syzkaller #0 [ 214.910888][ T6167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 214.912417][ T6167] Call trace: [ 214.912952][ T6167] dump_backtrace+0x0/0x43c [ 214.913615][ T6167] show_stack+0x2c/0x3c [ 214.914253][ T6167] __dump_stack+0x30/0x40 [ 214.914870][ T6167] dump_stack_lvl+0xf8/0x160 [ 214.915591][ T6167] dump_stack+0x1c/0x5c [ 214.916247][ T6167] sysfs_create_dir_ns+0x22c/0x24c [ 214.916975][ T6167] kobject_add_internal+0x590/0xc54 [ 214.917728][ T6167] kobject_init_and_add+0x118/0x17c [ 214.918512][ T6167] gfs2_sys_fs_add+0x1dc/0x3d8 [ 214.919204][ T6167] gfs2_fill_super+0xdac/0x19e0 [ 214.919950][ T6167] get_tree_bdev+0x358/0x544 [ 214.920601][ T6167] gfs2_get_tree+0x54/0x1b4 [ 214.921238][ T6167] vfs_get_tree+0x90/0x274 [ 214.921902][ T6167] do_new_mount+0x228/0x810 [ 214.922620][ T6167] path_mount+0x5b4/0x1000 [ 214.923295][ T6167] __arm64_sys_mount+0x514/0x5e4 [ 214.924004][ T6167] invoke_syscall+0x98/0x2b8 [ 214.924686][ T6167] el0_svc_common+0x138/0x258 [ 214.925390][ T6167] do_el0_svc+0x58/0x14c [ 214.926023][ T6167] el0_svc+0x78/0x1e0 [ 214.926616][ T6167] el0t_64_sync_handler+0xcc/0xe4 [ 214.927359][ T6167] el0t_64_sync+0x1a0/0x1a4 [ 214.930473][ T6167] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.932600][ T6167] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.045313][ T21] Bluetooth: hci1: command 0x0406 tx timeout [ 215.065688][ T6169] loop1: detected capacity change from 0 to 32768 [ 215.116593][ T6169] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.117818][ T6169] CPU: 1 PID: 6169 Comm: syz.1.598 Not tainted syzkaller #0 [ 215.118974][ T6169] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 215.120498][ T6169] Call trace: [ 215.121010][ T6169] dump_backtrace+0x0/0x43c [ 215.121672][ T6169] show_stack+0x2c/0x3c [ 215.122331][ T6169] __dump_stack+0x30/0x40 [ 215.122975][ T6169] dump_stack_lvl+0xf8/0x160 [ 215.123791][ T6169] dump_stack+0x1c/0x5c [ 215.124450][ T6169] sysfs_create_dir_ns+0x22c/0x24c [ 215.125301][ T6169] kobject_add_internal+0x590/0xc54 [ 215.126114][ T6169] kobject_init_and_add+0x118/0x17c [ 215.126893][ T6169] gfs2_sys_fs_add+0x1dc/0x3d8 [ 215.127627][ T6169] gfs2_fill_super+0xdac/0x19e0 [ 215.128385][ T6169] get_tree_bdev+0x358/0x544 [ 215.129087][ T6169] gfs2_get_tree+0x54/0x1b4 [ 215.129772][ T6169] vfs_get_tree+0x90/0x274 [ 215.130390][ T6169] do_new_mount+0x228/0x810 [ 215.131070][ T6169] path_mount+0x5b4/0x1000 [ 215.131736][ T6169] __arm64_sys_mount+0x514/0x5e4 [ 215.132507][ T6169] invoke_syscall+0x98/0x2b8 [ 215.133262][ T6169] el0_svc_common+0x138/0x258 [ 215.134010][ T6169] do_el0_svc+0x58/0x14c [ 215.134694][ T6169] el0_svc+0x78/0x1e0 [ 215.135291][ T6169] el0t_64_sync_handler+0xcc/0xe4 [ 215.136116][ T6169] el0t_64_sync+0x1a0/0x1a4 [ 215.141246][ T6169] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.143449][ T6169] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.307220][ T6171] loop1: detected capacity change from 0 to 32768 [ 215.350369][ T6171] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.351613][ T6171] CPU: 0 PID: 6171 Comm: syz.1.599 Not tainted syzkaller #0 [ 215.352690][ T6171] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 215.354369][ T6171] Call trace: [ 215.354907][ T6171] dump_backtrace+0x0/0x43c [ 215.355585][ T6171] show_stack+0x2c/0x3c [ 215.356255][ T6171] __dump_stack+0x30/0x40 [ 215.356946][ T6171] dump_stack_lvl+0xf8/0x160 [ 215.357666][ T6171] dump_stack+0x1c/0x5c [ 215.358304][ T6171] sysfs_create_dir_ns+0x22c/0x24c [ 215.359058][ T6171] kobject_add_internal+0x590/0xc54 [ 215.359829][ T6171] kobject_init_and_add+0x118/0x17c [ 215.360585][ T6171] gfs2_sys_fs_add+0x1dc/0x3d8 [ 215.361282][ T6171] gfs2_fill_super+0xdac/0x19e0 [ 215.362027][ T6171] get_tree_bdev+0x358/0x544 [ 215.362669][ T6171] gfs2_get_tree+0x54/0x1b4 [ 215.363299][ T6171] vfs_get_tree+0x90/0x274 [ 215.363962][ T6171] do_new_mount+0x228/0x810 [ 215.364596][ T6171] path_mount+0x5b4/0x1000 [ 215.365224][ T6171] __arm64_sys_mount+0x514/0x5e4 [ 215.366008][ T6171] invoke_syscall+0x98/0x2b8 [ 215.366710][ T6171] el0_svc_common+0x138/0x258 [ 215.367465][ T6171] do_el0_svc+0x58/0x14c [ 215.368141][ T6171] el0_svc+0x78/0x1e0 [ 215.368748][ T6171] el0t_64_sync_handler+0xcc/0xe4 [ 215.369558][ T6171] el0t_64_sync+0x1a0/0x1a4 [ 215.371970][ T6171] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.373875][ T6171] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.615523][ T6173] loop1: detected capacity change from 0 to 32768 [ 215.671655][ T6173] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.672822][ T6173] CPU: 1 PID: 6173 Comm: syz.1.600 Not tainted syzkaller #0 [ 215.674070][ T6173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 215.675612][ T6173] Call trace: [ 215.676101][ T6173] dump_backtrace+0x0/0x43c [ 215.676809][ T6173] show_stack+0x2c/0x3c [ 215.677467][ T6173] __dump_stack+0x30/0x40 [ 215.678144][ T6173] dump_stack_lvl+0xf8/0x160 [ 215.678863][ T6173] dump_stack+0x1c/0x5c [ 215.679524][ T6173] sysfs_create_dir_ns+0x22c/0x24c [ 215.680295][ T6173] kobject_add_internal+0x590/0xc54 [ 215.681046][ T6173] kobject_init_and_add+0x118/0x17c [ 215.681787][ T6173] gfs2_sys_fs_add+0x1dc/0x3d8 [ 215.682531][ T6173] gfs2_fill_super+0xdac/0x19e0 [ 215.683272][ T6173] get_tree_bdev+0x358/0x544 [ 215.683931][ T6173] gfs2_get_tree+0x54/0x1b4 [ 215.684594][ T6173] vfs_get_tree+0x90/0x274 [ 215.685242][ T6173] do_new_mount+0x228/0x810 [ 215.685919][ T6173] path_mount+0x5b4/0x1000 [ 215.686588][ T6173] __arm64_sys_mount+0x514/0x5e4 [ 215.687304][ T6173] invoke_syscall+0x98/0x2b8 [ 215.687956][ T6173] el0_svc_common+0x138/0x258 [ 215.688713][ T6173] do_el0_svc+0x58/0x14c [ 215.689391][ T6173] el0_svc+0x78/0x1e0 [ 215.690033][ T6173] el0t_64_sync_handler+0xcc/0xe4 [ 215.690790][ T6173] el0t_64_sync+0x1a0/0x1a4 [ 215.692928][ T6173] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.694915][ T6173] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.827749][ T6175] loop1: detected capacity change from 0 to 32768 [ 215.886827][ T6175] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.887966][ T6175] CPU: 0 PID: 6175 Comm: syz.1.601 Not tainted syzkaller #0 [ 215.888914][ T6175] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 215.890431][ T6175] Call trace: [ 215.890872][ T6175] dump_backtrace+0x0/0x43c [ 215.891553][ T6175] show_stack+0x2c/0x3c [ 215.892148][ T6175] __dump_stack+0x30/0x40 [ 215.892791][ T6175] dump_stack_lvl+0xf8/0x160 [ 215.893453][ T6175] dump_stack+0x1c/0x5c [ 215.894056][ T6175] sysfs_create_dir_ns+0x22c/0x24c [ 215.894729][ T6175] kobject_add_internal+0x590/0xc54 [ 215.895426][ T6175] kobject_init_and_add+0x118/0x17c [ 215.896147][ T6175] gfs2_sys_fs_add+0x1dc/0x3d8 [ 215.896863][ T6175] gfs2_fill_super+0xdac/0x19e0 [ 215.897591][ T6175] get_tree_bdev+0x358/0x544 [ 215.898284][ T6175] gfs2_get_tree+0x54/0x1b4 [ 215.898868][ T6175] vfs_get_tree+0x90/0x274 [ 215.899489][ T6175] do_new_mount+0x228/0x810 [ 215.900119][ T6175] path_mount+0x5b4/0x1000 [ 215.900751][ T6175] __arm64_sys_mount+0x514/0x5e4 [ 215.901431][ T6175] invoke_syscall+0x98/0x2b8 [ 215.902115][ T6175] el0_svc_common+0x138/0x258 [ 215.902802][ T6175] do_el0_svc+0x58/0x14c [ 215.903446][ T6175] el0_svc+0x78/0x1e0 [ 215.904046][ T6175] el0t_64_sync_handler+0xcc/0xe4 [ 215.904765][ T6175] el0t_64_sync+0x1a0/0x1a4 [ 215.905668][ T6175] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.907650][ T6175] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.078645][ T6177] loop1: detected capacity change from 0 to 32768 [ 216.127657][ T6177] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.128877][ T6177] CPU: 0 PID: 6177 Comm: syz.1.602 Not tainted syzkaller #0 [ 216.130080][ T6177] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 216.131660][ T6177] Call trace: [ 216.132178][ T6177] dump_backtrace+0x0/0x43c [ 216.132859][ T6177] show_stack+0x2c/0x3c [ 216.133474][ T6177] __dump_stack+0x30/0x40 [ 216.134173][ T6177] dump_stack_lvl+0xf8/0x160 [ 216.134932][ T6177] dump_stack+0x1c/0x5c [ 216.135566][ T6177] sysfs_create_dir_ns+0x22c/0x24c [ 216.136376][ T6177] kobject_add_internal+0x590/0xc54 [ 216.137147][ T6177] kobject_init_and_add+0x118/0x17c [ 216.137956][ T6177] gfs2_sys_fs_add+0x1dc/0x3d8 [ 216.138658][ T6177] gfs2_fill_super+0xdac/0x19e0 [ 216.139396][ T6177] get_tree_bdev+0x358/0x544 [ 216.140087][ T6177] gfs2_get_tree+0x54/0x1b4 [ 216.140842][ T6177] vfs_get_tree+0x90/0x274 [ 216.141556][ T6177] do_new_mount+0x228/0x810 [ 216.142319][ T6177] path_mount+0x5b4/0x1000 [ 216.143057][ T6177] __arm64_sys_mount+0x514/0x5e4 [ 216.143869][ T6177] invoke_syscall+0x98/0x2b8 [ 216.144606][ T6177] el0_svc_common+0x138/0x258 [ 216.145341][ T6177] do_el0_svc+0x58/0x14c [ 216.146038][ T6177] el0_svc+0x78/0x1e0 [ 216.146653][ T6177] el0t_64_sync_handler+0xcc/0xe4 [ 216.147418][ T6177] el0t_64_sync+0x1a0/0x1a4 [ 216.151749][ T6177] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.153758][ T6177] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.291758][ T6179] loop1: detected capacity change from 0 to 32768 [ 216.299342][ T6179] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.300546][ T6179] CPU: 0 PID: 6179 Comm: syz.1.603 Not tainted syzkaller #0 [ 216.301713][ T6179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 216.303230][ T6179] Call trace: [ 216.303734][ T6179] dump_backtrace+0x0/0x43c [ 216.304384][ T6179] show_stack+0x2c/0x3c [ 216.304968][ T6179] __dump_stack+0x30/0x40 [ 216.305671][ T6179] dump_stack_lvl+0xf8/0x160 [ 216.306384][ T6179] dump_stack+0x1c/0x5c [ 216.306995][ T6179] sysfs_create_dir_ns+0x22c/0x24c [ 216.307838][ T6179] kobject_add_internal+0x590/0xc54 [ 216.308643][ T6179] kobject_init_and_add+0x118/0x17c [ 216.309369][ T6179] gfs2_sys_fs_add+0x1dc/0x3d8 [ 216.310080][ T6179] gfs2_fill_super+0xdac/0x19e0 [ 216.310853][ T6179] get_tree_bdev+0x358/0x544 [ 216.311518][ T6179] gfs2_get_tree+0x54/0x1b4 [ 216.312209][ T6179] vfs_get_tree+0x90/0x274 [ 216.312855][ T6179] do_new_mount+0x228/0x810 [ 216.313499][ T6179] path_mount+0x5b4/0x1000 [ 216.314154][ T6179] __arm64_sys_mount+0x514/0x5e4 [ 216.314871][ T6179] invoke_syscall+0x98/0x2b8 [ 216.315556][ T6179] el0_svc_common+0x138/0x258 [ 216.316237][ T6179] do_el0_svc+0x58/0x14c [ 216.316960][ T6179] el0_svc+0x78/0x1e0 [ 216.317617][ T6179] el0t_64_sync_handler+0xcc/0xe4 [ 216.318403][ T6179] el0t_64_sync+0x1a0/0x1a4 [ 216.319334][ T6179] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.321155][ T6179] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.452965][ T6181] loop1: detected capacity change from 0 to 32768 [ 216.506993][ T6181] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.508214][ T6181] CPU: 1 PID: 6181 Comm: syz.1.604 Not tainted syzkaller #0 [ 216.509329][ T6181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 216.510965][ T6181] Call trace: [ 216.511480][ T6181] dump_backtrace+0x0/0x43c [ 216.512172][ T6181] show_stack+0x2c/0x3c [ 216.512816][ T6181] __dump_stack+0x30/0x40 [ 216.513485][ T6181] dump_stack_lvl+0xf8/0x160 [ 216.514205][ T6181] dump_stack+0x1c/0x5c [ 216.514863][ T6181] sysfs_create_dir_ns+0x22c/0x24c [ 216.515630][ T6181] kobject_add_internal+0x590/0xc54 [ 216.516508][ T6181] kobject_init_and_add+0x118/0x17c [ 216.517350][ T6181] gfs2_sys_fs_add+0x1dc/0x3d8 [ 216.518090][ T6181] gfs2_fill_super+0xdac/0x19e0 [ 216.518811][ T6181] get_tree_bdev+0x358/0x544 [ 216.519528][ T6181] gfs2_get_tree+0x54/0x1b4 [ 216.520207][ T6181] vfs_get_tree+0x90/0x274 [ 216.520819][ T6181] do_new_mount+0x228/0x810 [ 216.521495][ T6181] path_mount+0x5b4/0x1000 [ 216.522202][ T6181] __arm64_sys_mount+0x514/0x5e4 [ 216.522987][ T6181] invoke_syscall+0x98/0x2b8 [ 216.523688][ T6181] el0_svc_common+0x138/0x258 [ 216.524392][ T6181] do_el0_svc+0x58/0x14c [ 216.525089][ T6181] el0_svc+0x78/0x1e0 [ 216.525676][ T6181] el0t_64_sync_handler+0xcc/0xe4 [ 216.526415][ T6181] el0t_64_sync+0x1a0/0x1a4 [ 216.528650][ T6181] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.530556][ T6181] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.670828][ T6183] loop1: detected capacity change from 0 to 32768 [ 216.711540][ T6183] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.712744][ T6183] CPU: 0 PID: 6183 Comm: syz.1.605 Not tainted syzkaller #0 [ 216.713919][ T6183] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 216.715501][ T6183] Call trace: [ 216.716033][ T6183] dump_backtrace+0x0/0x43c [ 216.716769][ T6183] show_stack+0x2c/0x3c [ 216.717423][ T6183] __dump_stack+0x30/0x40 [ 216.718139][ T6183] dump_stack_lvl+0xf8/0x160 [ 216.718896][ T6183] dump_stack+0x1c/0x5c [ 216.719527][ T6183] sysfs_create_dir_ns+0x22c/0x24c [ 216.720295][ T6183] kobject_add_internal+0x590/0xc54 [ 216.721064][ T6183] kobject_init_and_add+0x118/0x17c [ 216.721875][ T6183] gfs2_sys_fs_add+0x1dc/0x3d8 [ 216.722597][ T6183] gfs2_fill_super+0xdac/0x19e0 [ 216.723347][ T6183] get_tree_bdev+0x358/0x544 [ 216.724004][ T6183] gfs2_get_tree+0x54/0x1b4 [ 216.724674][ T6183] vfs_get_tree+0x90/0x274 [ 216.725370][ T6183] do_new_mount+0x228/0x810 [ 216.726062][ T6183] path_mount+0x5b4/0x1000 [ 216.726755][ T6183] __arm64_sys_mount+0x514/0x5e4 [ 216.727618][ T6183] invoke_syscall+0x98/0x2b8 [ 216.728380][ T6183] el0_svc_common+0x138/0x258 [ 216.729130][ T6183] do_el0_svc+0x58/0x14c [ 216.729780][ T6183] el0_svc+0x78/0x1e0 [ 216.730427][ T6183] el0t_64_sync_handler+0xcc/0xe4 [ 216.731192][ T6183] el0t_64_sync+0x1a0/0x1a4 [ 216.732095][ T6183] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.734098][ T6183] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.868546][ T6185] loop1: detected capacity change from 0 to 32768 [ 216.876837][ T6185] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.878529][ T6185] CPU: 1 PID: 6185 Comm: syz.1.606 Not tainted syzkaller #0 [ 216.879753][ T6185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 216.881323][ T6185] Call trace: [ 216.881800][ T6185] dump_backtrace+0x0/0x43c [ 216.882461][ T6185] show_stack+0x2c/0x3c [ 216.883091][ T6185] __dump_stack+0x30/0x40 [ 216.883803][ T6185] dump_stack_lvl+0xf8/0x160 [ 216.884472][ T6185] dump_stack+0x1c/0x5c [ 216.885127][ T6185] sysfs_create_dir_ns+0x22c/0x24c [ 216.885959][ T6185] kobject_add_internal+0x590/0xc54 [ 216.886767][ T6185] kobject_init_and_add+0x118/0x17c [ 216.887575][ T6185] gfs2_sys_fs_add+0x1dc/0x3d8 [ 216.888357][ T6185] gfs2_fill_super+0xdac/0x19e0 [ 216.889076][ T6185] get_tree_bdev+0x358/0x544 [ 216.889772][ T6185] gfs2_get_tree+0x54/0x1b4 [ 216.890400][ T6185] vfs_get_tree+0x90/0x274 [ 216.891165][ T6185] do_new_mount+0x228/0x810 [ 216.891860][ T6185] path_mount+0x5b4/0x1000 [ 216.892483][ T6185] __arm64_sys_mount+0x514/0x5e4 [ 216.893261][ T6185] invoke_syscall+0x98/0x2b8 [ 216.893939][ T6185] el0_svc_common+0x138/0x258 [ 216.894599][ T6185] do_el0_svc+0x58/0x14c [ 216.895252][ T6185] el0_svc+0x78/0x1e0 [ 216.895853][ T6185] el0t_64_sync_handler+0xcc/0xe4 [ 216.896612][ T6185] el0t_64_sync+0x1a0/0x1a4 [ 216.898919][ T6185] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.900975][ T6185] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.084277][ T6187] loop1: detected capacity change from 0 to 32768 [ 217.091771][ T6187] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.093001][ T6187] CPU: 1 PID: 6187 Comm: syz.1.607 Not tainted syzkaller #0 [ 217.094077][ T6187] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 217.095638][ T6187] Call trace: [ 217.096165][ T6187] dump_backtrace+0x0/0x43c [ 217.096870][ T6187] show_stack+0x2c/0x3c [ 217.097536][ T6187] __dump_stack+0x30/0x40 [ 217.098197][ T6187] dump_stack_lvl+0xf8/0x160 [ 217.098909][ T6187] dump_stack+0x1c/0x5c [ 217.099547][ T6187] sysfs_create_dir_ns+0x22c/0x24c [ 217.100351][ T6187] kobject_add_internal+0x590/0xc54 [ 217.101170][ T6187] kobject_init_and_add+0x118/0x17c [ 217.101963][ T6187] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.102675][ T6187] gfs2_fill_super+0xdac/0x19e0 [ 217.103438][ T6187] get_tree_bdev+0x358/0x544 [ 217.104100][ T6187] gfs2_get_tree+0x54/0x1b4 [ 217.104780][ T6187] vfs_get_tree+0x90/0x274 [ 217.105399][ T6187] do_new_mount+0x228/0x810 [ 217.106082][ T6187] path_mount+0x5b4/0x1000 [ 217.106814][ T6187] __arm64_sys_mount+0x514/0x5e4 [ 217.107607][ T6187] invoke_syscall+0x98/0x2b8 [ 217.108343][ T6187] el0_svc_common+0x138/0x258 [ 217.109148][ T6187] do_el0_svc+0x58/0x14c [ 217.109844][ T6187] el0_svc+0x78/0x1e0 [ 217.110475][ T6187] el0t_64_sync_handler+0xcc/0xe4 [ 217.111206][ T6187] el0t_64_sync+0x1a0/0x1a4 [ 217.112706][ T6187] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.115337][ T6187] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.258510][ T6189] loop1: detected capacity change from 0 to 32768 [ 217.296842][ T6189] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.298076][ T6189] CPU: 0 PID: 6189 Comm: syz.1.608 Not tainted syzkaller #0 [ 217.299173][ T6189] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 217.300651][ T6189] Call trace: [ 217.301147][ T6189] dump_backtrace+0x0/0x43c [ 217.301810][ T6189] show_stack+0x2c/0x3c [ 217.302402][ T6189] __dump_stack+0x30/0x40 [ 217.302989][ T6189] dump_stack_lvl+0xf8/0x160 [ 217.303665][ T6189] dump_stack+0x1c/0x5c [ 217.304272][ T6189] sysfs_create_dir_ns+0x22c/0x24c [ 217.305021][ T6189] kobject_add_internal+0x590/0xc54 [ 217.305782][ T6189] kobject_init_and_add+0x118/0x17c [ 217.306504][ T6189] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.307169][ T6189] gfs2_fill_super+0xdac/0x19e0 [ 217.307926][ T6189] get_tree_bdev+0x358/0x544 [ 217.308547][ T6189] gfs2_get_tree+0x54/0x1b4 [ 217.309124][ T6189] vfs_get_tree+0x90/0x274 [ 217.309748][ T6189] do_new_mount+0x228/0x810 [ 217.310387][ T6189] path_mount+0x5b4/0x1000 [ 217.311096][ T6189] __arm64_sys_mount+0x514/0x5e4 [ 217.311828][ T6189] invoke_syscall+0x98/0x2b8 [ 217.312526][ T6189] el0_svc_common+0x138/0x258 [ 217.313181][ T6189] do_el0_svc+0x58/0x14c [ 217.313807][ T6189] el0_svc+0x78/0x1e0 [ 217.314386][ T6189] el0t_64_sync_handler+0xcc/0xe4 [ 217.315065][ T6189] el0t_64_sync+0x1a0/0x1a4 [ 217.320117][ T6189] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.322304][ T6189] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.454357][ T6191] loop1: detected capacity change from 0 to 32768 [ 217.530303][ T6191] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.531524][ T6191] CPU: 1 PID: 6191 Comm: syz.1.609 Not tainted syzkaller #0 [ 217.532619][ T6191] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 217.534213][ T6191] Call trace: [ 217.534694][ T6191] dump_backtrace+0x0/0x43c [ 217.535403][ T6191] show_stack+0x2c/0x3c [ 217.536077][ T6191] __dump_stack+0x30/0x40 [ 217.536745][ T6191] dump_stack_lvl+0xf8/0x160 [ 217.537548][ T6191] dump_stack+0x1c/0x5c [ 217.538220][ T6191] sysfs_create_dir_ns+0x22c/0x24c [ 217.539014][ T6191] kobject_add_internal+0x590/0xc54 [ 217.539824][ T6191] kobject_init_and_add+0x118/0x17c [ 217.540632][ T6191] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.541355][ T6191] gfs2_fill_super+0xdac/0x19e0 [ 217.542068][ T6191] get_tree_bdev+0x358/0x544 [ 217.542738][ T6191] gfs2_get_tree+0x54/0x1b4 [ 217.543429][ T6191] vfs_get_tree+0x90/0x274 [ 217.544089][ T6191] do_new_mount+0x228/0x810 [ 217.544798][ T6191] path_mount+0x5b4/0x1000 [ 217.545487][ T6191] __arm64_sys_mount+0x514/0x5e4 [ 217.546201][ T6191] invoke_syscall+0x98/0x2b8 [ 217.546919][ T6191] el0_svc_common+0x138/0x258 [ 217.547615][ T6191] do_el0_svc+0x58/0x14c [ 217.548264][ T6191] el0_svc+0x78/0x1e0 [ 217.548882][ T6191] el0t_64_sync_handler+0xcc/0xe4 [ 217.549602][ T6191] el0t_64_sync+0x1a0/0x1a4 [ 217.551784][ T6191] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.553823][ T6191] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.686647][ T6193] loop1: detected capacity change from 0 to 32768 [ 217.757205][ T6193] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.758381][ T6193] CPU: 1 PID: 6193 Comm: syz.1.610 Not tainted syzkaller #0 [ 217.759540][ T6193] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 217.761089][ T6193] Call trace: [ 217.761601][ T6193] dump_backtrace+0x0/0x43c [ 217.762264][ T6193] show_stack+0x2c/0x3c [ 217.762851][ T6193] __dump_stack+0x30/0x40 [ 217.763490][ T6193] dump_stack_lvl+0xf8/0x160 [ 217.764157][ T6193] dump_stack+0x1c/0x5c [ 217.764740][ T6193] sysfs_create_dir_ns+0x22c/0x24c [ 217.765536][ T6193] kobject_add_internal+0x590/0xc54 [ 217.766315][ T6193] kobject_init_and_add+0x118/0x17c [ 217.767048][ T6193] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.767737][ T6193] gfs2_fill_super+0xdac/0x19e0 [ 217.768500][ T6193] get_tree_bdev+0x358/0x544 [ 217.769212][ T6193] gfs2_get_tree+0x54/0x1b4 [ 217.769893][ T6193] vfs_get_tree+0x90/0x274 [ 217.770558][ T6193] do_new_mount+0x228/0x810 [ 217.771237][ T6193] path_mount+0x5b4/0x1000 [ 217.771887][ T6193] __arm64_sys_mount+0x514/0x5e4 [ 217.772585][ T6193] invoke_syscall+0x98/0x2b8 [ 217.773243][ T6193] el0_svc_common+0x138/0x258 [ 217.773919][ T6193] do_el0_svc+0x58/0x14c [ 217.774577][ T6193] el0_svc+0x78/0x1e0 [ 217.775124][ T6193] el0t_64_sync_handler+0xcc/0xe4 [ 217.775798][ T6193] el0t_64_sync+0x1a0/0x1a4 [ 217.778196][ T6193] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.780204][ T6193] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.917692][ T6195] loop1: detected capacity change from 0 to 32768 [ 217.961078][ T6195] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.962305][ T6195] CPU: 0 PID: 6195 Comm: syz.1.611 Not tainted syzkaller #0 [ 217.963464][ T6195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 217.965056][ T6195] Call trace: [ 217.965549][ T6195] dump_backtrace+0x0/0x43c [ 217.966276][ T6195] show_stack+0x2c/0x3c [ 217.966916][ T6195] __dump_stack+0x30/0x40 [ 217.967559][ T6195] dump_stack_lvl+0xf8/0x160 [ 217.968269][ T6195] dump_stack+0x1c/0x5c [ 217.968892][ T6195] sysfs_create_dir_ns+0x22c/0x24c [ 217.969727][ T6195] kobject_add_internal+0x590/0xc54 [ 217.970488][ T6195] kobject_init_and_add+0x118/0x17c [ 217.971272][ T6195] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.972026][ T6195] gfs2_fill_super+0xdac/0x19e0 [ 217.972763][ T6195] get_tree_bdev+0x358/0x544 [ 217.973465][ T6195] gfs2_get_tree+0x54/0x1b4 [ 217.974112][ T6195] vfs_get_tree+0x90/0x274 [ 217.974782][ T6195] do_new_mount+0x228/0x810 [ 217.975466][ T6195] path_mount+0x5b4/0x1000 [ 217.976142][ T6195] __arm64_sys_mount+0x514/0x5e4 [ 217.976861][ T6195] invoke_syscall+0x98/0x2b8 [ 217.977539][ T6195] el0_svc_common+0x138/0x258 [ 217.978221][ T6195] do_el0_svc+0x58/0x14c [ 217.978878][ T6195] el0_svc+0x78/0x1e0 [ 217.979468][ T6195] el0t_64_sync_handler+0xcc/0xe4 [ 217.980201][ T6195] el0t_64_sync+0x1a0/0x1a4 [ 217.981562][ T6195] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.983634][ T6195] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.125035][ T6197] loop1: detected capacity change from 0 to 32768 [ 218.132459][ T6197] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.133629][ T6197] CPU: 1 PID: 6197 Comm: syz.1.612 Not tainted syzkaller #0 [ 218.134809][ T6197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 218.136407][ T6197] Call trace: [ 218.136979][ T6197] dump_backtrace+0x0/0x43c [ 218.137664][ T6197] show_stack+0x2c/0x3c [ 218.138306][ T6197] __dump_stack+0x30/0x40 [ 218.138960][ T6197] dump_stack_lvl+0xf8/0x160 [ 218.139700][ T6197] dump_stack+0x1c/0x5c [ 218.140333][ T6197] sysfs_create_dir_ns+0x22c/0x24c [ 218.141130][ T6197] kobject_add_internal+0x590/0xc54 [ 218.141907][ T6197] kobject_init_and_add+0x118/0x17c [ 218.142732][ T6197] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.143502][ T6197] gfs2_fill_super+0xdac/0x19e0 [ 218.144206][ T6197] get_tree_bdev+0x358/0x544 [ 218.144975][ T6197] gfs2_get_tree+0x54/0x1b4 [ 218.145616][ T6197] vfs_get_tree+0x90/0x274 [ 218.146322][ T6197] do_new_mount+0x228/0x810 [ 218.146960][ T6197] path_mount+0x5b4/0x1000 [ 218.147587][ T6197] __arm64_sys_mount+0x514/0x5e4 [ 218.148341][ T6197] invoke_syscall+0x98/0x2b8 [ 218.149009][ T6197] el0_svc_common+0x138/0x258 [ 218.149714][ T6197] do_el0_svc+0x58/0x14c [ 218.150333][ T6197] el0_svc+0x78/0x1e0 [ 218.150942][ T6197] el0t_64_sync_handler+0xcc/0xe4 [ 218.151687][ T6197] el0t_64_sync+0x1a0/0x1a4 [ 218.152593][ T6197] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.154540][ T6197] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.287464][ T6199] loop1: detected capacity change from 0 to 32768 [ 218.328275][ T6199] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.329460][ T6199] CPU: 0 PID: 6199 Comm: syz.1.613 Not tainted syzkaller #0 [ 218.330571][ T6199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 218.332008][ T6199] Call trace: [ 218.332535][ T6199] dump_backtrace+0x0/0x43c [ 218.333321][ T6199] show_stack+0x2c/0x3c [ 218.333941][ T6199] __dump_stack+0x30/0x40 [ 218.334601][ T6199] dump_stack_lvl+0xf8/0x160 [ 218.335343][ T6199] dump_stack+0x1c/0x5c [ 218.335986][ T6199] sysfs_create_dir_ns+0x22c/0x24c [ 218.336852][ T6199] kobject_add_internal+0x590/0xc54 [ 218.337663][ T6199] kobject_init_and_add+0x118/0x17c [ 218.338421][ T6199] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.339111][ T6199] gfs2_fill_super+0xdac/0x19e0 [ 218.339808][ T6199] get_tree_bdev+0x358/0x544 [ 218.340502][ T6199] gfs2_get_tree+0x54/0x1b4 [ 218.341145][ T6199] vfs_get_tree+0x90/0x274 [ 218.341789][ T6199] do_new_mount+0x228/0x810 [ 218.342454][ T6199] path_mount+0x5b4/0x1000 [ 218.343067][ T6199] __arm64_sys_mount+0x514/0x5e4 [ 218.343746][ T6199] invoke_syscall+0x98/0x2b8 [ 218.344425][ T6199] el0_svc_common+0x138/0x258 [ 218.345168][ T6199] do_el0_svc+0x58/0x14c [ 218.345735][ T6199] el0_svc+0x78/0x1e0 [ 218.346367][ T6199] el0t_64_sync_handler+0xcc/0xe4 [ 218.347118][ T6199] el0t_64_sync+0x1a0/0x1a4 [ 218.348258][ T6199] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.350239][ T6199] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.493941][ T6201] loop1: detected capacity change from 0 to 32768 [ 218.536695][ T6201] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.538257][ T6201] CPU: 0 PID: 6201 Comm: syz.1.614 Not tainted syzkaller #0 [ 218.539379][ T6201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 218.540871][ T6201] Call trace: [ 218.541334][ T6201] dump_backtrace+0x0/0x43c [ 218.542050][ T6201] show_stack+0x2c/0x3c [ 218.542639][ T6201] __dump_stack+0x30/0x40 [ 218.543298][ T6201] dump_stack_lvl+0xf8/0x160 [ 218.543980][ T6201] dump_stack+0x1c/0x5c [ 218.544576][ T6201] sysfs_create_dir_ns+0x22c/0x24c [ 218.545285][ T6201] kobject_add_internal+0x590/0xc54 [ 218.546068][ T6201] kobject_init_and_add+0x118/0x17c [ 218.546805][ T6201] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.547496][ T6201] gfs2_fill_super+0xdac/0x19e0 [ 218.548185][ T6201] get_tree_bdev+0x358/0x544 [ 218.548825][ T6201] gfs2_get_tree+0x54/0x1b4 [ 218.549481][ T6201] vfs_get_tree+0x90/0x274 [ 218.550108][ T6201] do_new_mount+0x228/0x810 [ 218.550743][ T6201] path_mount+0x5b4/0x1000 [ 218.551331][ T6201] __arm64_sys_mount+0x514/0x5e4 [ 218.552009][ T6201] invoke_syscall+0x98/0x2b8 [ 218.552630][ T6201] el0_svc_common+0x138/0x258 [ 218.553287][ T6201] do_el0_svc+0x58/0x14c [ 218.553943][ T6201] el0_svc+0x78/0x1e0 [ 218.554494][ T6201] el0t_64_sync_handler+0xcc/0xe4 [ 218.555216][ T6201] el0t_64_sync+0x1a0/0x1a4 [ 218.556643][ T6201] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.558580][ T6201] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.723510][ T6203] loop1: detected capacity change from 0 to 32768 [ 218.746729][ T6203] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.747891][ T6203] CPU: 1 PID: 6203 Comm: syz.1.615 Not tainted syzkaller #0 [ 218.749034][ T6203] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 218.750575][ T6203] Call trace: [ 218.751054][ T6203] dump_backtrace+0x0/0x43c [ 218.751689][ T6203] show_stack+0x2c/0x3c [ 218.752292][ T6203] __dump_stack+0x30/0x40 [ 218.752883][ T6203] dump_stack_lvl+0xf8/0x160 [ 218.753511][ T6203] dump_stack+0x1c/0x5c [ 218.754145][ T6203] sysfs_create_dir_ns+0x22c/0x24c [ 218.754928][ T6203] kobject_add_internal+0x590/0xc54 [ 218.755724][ T6203] kobject_init_and_add+0x118/0x17c [ 218.756533][ T6203] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.757285][ T6203] gfs2_fill_super+0xdac/0x19e0 [ 218.758055][ T6203] get_tree_bdev+0x358/0x544 [ 218.758692][ T6203] gfs2_get_tree+0x54/0x1b4 [ 218.759325][ T6203] vfs_get_tree+0x90/0x274 [ 218.759976][ T6203] do_new_mount+0x228/0x810 [ 218.760623][ T6203] path_mount+0x5b4/0x1000 [ 218.761291][ T6203] __arm64_sys_mount+0x514/0x5e4 [ 218.762023][ T6203] invoke_syscall+0x98/0x2b8 [ 218.762658][ T6203] el0_svc_common+0x138/0x258 [ 218.763386][ T6203] do_el0_svc+0x58/0x14c [ 218.763995][ T6203] el0_svc+0x78/0x1e0 [ 218.764569][ T6203] el0t_64_sync_handler+0xcc/0xe4 [ 218.765346][ T6203] el0t_64_sync+0x1a0/0x1a4 [ 218.767425][ T6203] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.769558][ T6203] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.909977][ T6205] loop1: detected capacity change from 0 to 32768 [ 218.913536][ T6205] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.914768][ T6205] CPU: 1 PID: 6205 Comm: syz.1.616 Not tainted syzkaller #0 [ 218.915850][ T6205] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 218.917510][ T6205] Call trace: [ 218.918025][ T6205] dump_backtrace+0x0/0x43c [ 218.918697][ T6205] show_stack+0x2c/0x3c [ 218.919307][ T6205] __dump_stack+0x30/0x40 [ 218.919996][ T6205] dump_stack_lvl+0xf8/0x160 [ 218.920666][ T6205] dump_stack+0x1c/0x5c [ 218.921264][ T6205] sysfs_create_dir_ns+0x22c/0x24c [ 218.922019][ T6205] kobject_add_internal+0x590/0xc54 [ 218.922800][ T6205] kobject_init_and_add+0x118/0x17c [ 218.923566][ T6205] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.924285][ T6205] gfs2_fill_super+0xdac/0x19e0 [ 218.925010][ T6205] get_tree_bdev+0x358/0x544 [ 218.925744][ T6205] gfs2_get_tree+0x54/0x1b4 [ 218.926467][ T6205] vfs_get_tree+0x90/0x274 [ 218.927166][ T6205] do_new_mount+0x228/0x810 [ 218.927868][ T6205] path_mount+0x5b4/0x1000 [ 218.928606][ T6205] __arm64_sys_mount+0x514/0x5e4 [ 218.929366][ T6205] invoke_syscall+0x98/0x2b8 [ 218.930069][ T6205] el0_svc_common+0x138/0x258 [ 218.930822][ T6205] do_el0_svc+0x58/0x14c [ 218.931499][ T6205] el0_svc+0x78/0x1e0 [ 218.932136][ T6205] el0t_64_sync_handler+0xcc/0xe4 [ 218.932928][ T6205] el0t_64_sync+0x1a0/0x1a4 [ 218.935031][ T6205] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.937312][ T6205] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.079338][ T6207] loop1: detected capacity change from 0 to 32768 [ 219.120871][ T6207] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.122175][ T6207] CPU: 1 PID: 6207 Comm: syz.1.617 Not tainted syzkaller #0 [ 219.123319][ T6207] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 219.124943][ T6207] Call trace: [ 219.125462][ T6207] dump_backtrace+0x0/0x43c [ 219.126189][ T6207] show_stack+0x2c/0x3c [ 219.126786][ T6207] __dump_stack+0x30/0x40 [ 219.127410][ T6207] dump_stack_lvl+0xf8/0x160 [ 219.128111][ T6207] dump_stack+0x1c/0x5c [ 219.128715][ T6207] sysfs_create_dir_ns+0x22c/0x24c [ 219.129506][ T6207] kobject_add_internal+0x590/0xc54 [ 219.130337][ T6207] kobject_init_and_add+0x118/0x17c [ 219.131165][ T6207] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.131907][ T6207] gfs2_fill_super+0xdac/0x19e0 [ 219.132691][ T6207] get_tree_bdev+0x358/0x544 [ 219.133441][ T6207] gfs2_get_tree+0x54/0x1b4 [ 219.134112][ T6207] vfs_get_tree+0x90/0x274 [ 219.134781][ T6207] do_new_mount+0x228/0x810 [ 219.135477][ T6207] path_mount+0x5b4/0x1000 [ 219.136172][ T6207] __arm64_sys_mount+0x514/0x5e4 [ 219.136931][ T6207] invoke_syscall+0x98/0x2b8 [ 219.137609][ T6207] el0_svc_common+0x138/0x258 [ 219.138330][ T6207] do_el0_svc+0x58/0x14c [ 219.138996][ T6207] el0_svc+0x78/0x1e0 [ 219.139577][ T6207] el0t_64_sync_handler+0xcc/0xe4 [ 219.140368][ T6207] el0t_64_sync+0x1a0/0x1a4 [ 219.141640][ T6207] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.143616][ T6207] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.214430][ T6209] chnl_net:caif_netlink_parms(): no params data found [ 219.235128][ T6209] bridge0: port 1(bridge_slave_0) entered blocking state [ 219.237200][ T6209] bridge0: port 1(bridge_slave_0) entered disabled state [ 219.238831][ T6209] device bridge_slave_0 entered promiscuous mode [ 219.240809][ T6209] bridge0: port 2(bridge_slave_1) entered blocking state [ 219.242011][ T6209] bridge0: port 2(bridge_slave_1) entered disabled state [ 219.243440][ T6209] device bridge_slave_1 entered promiscuous mode [ 219.253212][ T6209] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 219.256864][ T6209] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 219.264698][ T6209] team0: Port device team_slave_0 added [ 219.267275][ T6209] team0: Port device team_slave_1 added [ 219.274014][ T6209] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 219.275164][ T6209] 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. [ 219.279329][ T6209] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 219.281593][ T6209] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 219.282664][ T6209] 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. [ 219.287003][ T6209] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 219.346552][ T6209] device hsr_slave_0 entered promiscuous mode [ 219.395512][ T6209] device hsr_slave_1 entered promiscuous mode [ 219.445343][ T6209] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 219.446583][ T6209] Cannot create hsr debugfs directory [ 219.483985][ T6209] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 219.708257][ T6209] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 219.969315][ T6209] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 220.022174][ T6209] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 220.184608][ T6209] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 220.231687][ T6209] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 220.270104][ T6209] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 220.319242][ T6209] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 220.422105][ T6209] 8021q: adding VLAN 0 to HW filter on device bond0 [ 220.425970][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 220.427632][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 220.430259][ T6209] 8021q: adding VLAN 0 to HW filter on device team0 [ 220.432675][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 220.434217][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 220.437912][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 220.439089][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 220.440508][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 220.447422][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 220.449181][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 220.450662][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 220.451815][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 220.454865][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 220.459869][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 220.462603][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 220.464856][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 220.467707][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 220.470502][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 220.472200][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 220.474879][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 220.478878][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 220.481684][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 220.483470][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 220.486608][ T6209] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 220.529968][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 220.531351][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 220.534538][ T6209] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 220.540982][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 220.542715][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 220.548920][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 220.550567][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 220.552110][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 220.553497][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 220.558988][ T6209] device veth0_vlan entered promiscuous mode [ 220.562372][ T6209] device veth1_vlan entered promiscuous mode [ 220.569834][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 220.571348][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 220.572854][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 220.574436][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 220.577139][ T6209] device veth0_macvtap entered promiscuous mode [ 220.580109][ T6209] device veth1_macvtap entered promiscuous mode [ 220.584957][ T6209] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 220.587243][ T6209] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 220.588843][ T6209] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 220.590577][ T6209] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 220.592695][ T6209] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 220.593978][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 220.598176][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 220.599583][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 220.601042][ T1886] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 220.603689][ T6209] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 220.605884][ T6209] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 220.607345][ T6209] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 220.608846][ T6209] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 220.610941][ T6209] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 220.616659][ T338] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 220.618409][ T338] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 220.621237][ T6209] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 220.622600][ T6209] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 220.623885][ T6209] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 220.625587][ T6209] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 220.645161][ T1886] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 220.652535][ T1886] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 220.656577][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 220.658670][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 220.660048][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 220.663273][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:03:40 executed programs: 603 [ 220.806485][ T6227] loop1: detected capacity change from 0 to 32768 [ 220.825411][ T6227] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.826604][ T6227] CPU: 0 PID: 6227 Comm: syz.1.618 Not tainted syzkaller #0 [ 220.827720][ T6227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 220.829158][ T6227] Call trace: [ 220.829672][ T6227] dump_backtrace+0x0/0x43c [ 220.830327][ T6227] show_stack+0x2c/0x3c [ 220.830948][ T6227] __dump_stack+0x30/0x40 [ 220.831593][ T6227] dump_stack_lvl+0xf8/0x160 [ 220.832221][ T6227] dump_stack+0x1c/0x5c [ 220.832823][ T6227] sysfs_create_dir_ns+0x22c/0x24c [ 220.833574][ T6227] kobject_add_internal+0x590/0xc54 [ 220.834338][ T6227] kobject_init_and_add+0x118/0x17c [ 220.835070][ T6227] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.835807][ T6227] gfs2_fill_super+0xdac/0x19e0 [ 220.836509][ T6227] get_tree_bdev+0x358/0x544 [ 220.837187][ T6227] gfs2_get_tree+0x54/0x1b4 [ 220.837796][ T6227] vfs_get_tree+0x90/0x274 [ 220.838424][ T6227] do_new_mount+0x228/0x810 [ 220.839129][ T6227] path_mount+0x5b4/0x1000 [ 220.839812][ T6227] __arm64_sys_mount+0x514/0x5e4 [ 220.840603][ T6227] invoke_syscall+0x98/0x2b8 [ 220.841250][ T6227] el0_svc_common+0x138/0x258 [ 220.841962][ T6227] do_el0_svc+0x58/0x14c [ 220.842539][ T6227] el0_svc+0x78/0x1e0 [ 220.843103][ T6227] el0t_64_sync_handler+0xcc/0xe4 [ 220.843872][ T6227] el0t_64_sync+0x1a0/0x1a4 [ 220.847275][ T6227] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.849376][ T6227] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.082379][ T6229] loop1: detected capacity change from 0 to 32768 [ 221.121462][ T6229] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.123913][ T6229] CPU: 1 PID: 6229 Comm: syz.1.619 Not tainted syzkaller #0 [ 221.125130][ T6229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 221.126714][ T6229] Call trace: [ 221.127205][ T6229] dump_backtrace+0x0/0x43c [ 221.127912][ T6229] show_stack+0x2c/0x3c [ 221.128544][ T6229] __dump_stack+0x30/0x40 [ 221.129206][ T6229] dump_stack_lvl+0xf8/0x160 [ 221.129914][ T6229] dump_stack+0x1c/0x5c [ 221.130541][ T6229] sysfs_create_dir_ns+0x22c/0x24c [ 221.131285][ T6229] kobject_add_internal+0x590/0xc54 [ 221.132124][ T6229] kobject_init_and_add+0x118/0x17c [ 221.132891][ T6229] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.133597][ T6229] gfs2_fill_super+0xdac/0x19e0 [ 221.134284][ T6229] get_tree_bdev+0x358/0x544 [ 221.134921][ T6229] gfs2_get_tree+0x54/0x1b4 [ 221.135639][ T6229] vfs_get_tree+0x90/0x274 [ 221.136313][ T6229] do_new_mount+0x228/0x810 [ 221.137039][ T6229] path_mount+0x5b4/0x1000 [ 221.137685][ T6229] __arm64_sys_mount+0x514/0x5e4 [ 221.138499][ T6229] invoke_syscall+0x98/0x2b8 [ 221.139173][ T6229] el0_svc_common+0x138/0x258 [ 221.139867][ T6229] do_el0_svc+0x58/0x14c [ 221.140484][ T6229] el0_svc+0x78/0x1e0 [ 221.141128][ T6229] el0t_64_sync_handler+0xcc/0xe4 [ 221.141879][ T6229] el0t_64_sync+0x1a0/0x1a4 [ 221.143677][ T6229] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.146094][ T6229] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.205688][ T4078] Bluetooth: hci2: command 0x0409 tx timeout [ 221.207369][ T1630] device hsr_slave_0 left promiscuous mode [ 221.255550][ T1630] device hsr_slave_1 left promiscuous mode [ 221.298467][ T6231] loop1: detected capacity change from 0 to 32768 [ 221.355332][ T1630] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 221.356552][ T1630] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 221.361656][ T1630] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 221.363128][ T1630] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 221.364569][ T1630] device bridge_slave_1 left promiscuous mode [ 221.369148][ T1630] bridge0: port 2(bridge_slave_1) entered disabled state [ 221.371834][ T6231] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.373017][ T6231] CPU: 0 PID: 6231 Comm: syz.1.620 Not tainted syzkaller #0 [ 221.374083][ T6231] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 221.375507][ T6231] Call trace: [ 221.375963][ T6231] dump_backtrace+0x0/0x43c [ 221.376600][ T6231] show_stack+0x2c/0x3c [ 221.377241][ T6231] __dump_stack+0x30/0x40 [ 221.377867][ T6231] dump_stack_lvl+0xf8/0x160 [ 221.378589][ T6231] dump_stack+0x1c/0x5c [ 221.379206][ T6231] sysfs_create_dir_ns+0x22c/0x24c [ 221.379995][ T6231] kobject_add_internal+0x590/0xc54 [ 221.380780][ T6231] kobject_init_and_add+0x118/0x17c [ 221.381549][ T6231] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.382270][ T6231] gfs2_fill_super+0xdac/0x19e0 [ 221.382956][ T6231] get_tree_bdev+0x358/0x544 [ 221.383618][ T6231] gfs2_get_tree+0x54/0x1b4 [ 221.384242][ T6231] vfs_get_tree+0x90/0x274 [ 221.384902][ T6231] do_new_mount+0x228/0x810 [ 221.385592][ T6231] path_mount+0x5b4/0x1000 [ 221.386210][ T6231] __arm64_sys_mount+0x514/0x5e4 [ 221.386955][ T6231] invoke_syscall+0x98/0x2b8 [ 221.387659][ T6231] el0_svc_common+0x138/0x258 [ 221.388336][ T6231] do_el0_svc+0x58/0x14c [ 221.388927][ T6231] el0_svc+0x78/0x1e0 [ 221.389513][ T6231] el0t_64_sync_handler+0xcc/0xe4 [ 221.390269][ T6231] el0t_64_sync+0x1a0/0x1a4 [ 221.392755][ T6231] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.394704][ T6231] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.397462][ T1630] device bridge_slave_0 left promiscuous mode [ 221.398486][ T1630] bridge0: port 1(bridge_slave_0) entered disabled state [ 221.539318][ T6233] loop1: detected capacity change from 0 to 32768 [ 221.555372][ T1630] device veth1_macvtap left promiscuous mode [ 221.556337][ T1630] device veth0_macvtap left promiscuous mode [ 221.557322][ T1630] device veth1_vlan left promiscuous mode [ 221.558240][ T1630] device veth0_vlan left promiscuous mode [ 221.576773][ T6233] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.577954][ T6233] CPU: 0 PID: 6233 Comm: syz.1.621 Not tainted syzkaller #0 [ 221.579098][ T6233] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 221.580623][ T6233] Call trace: [ 221.581110][ T6233] dump_backtrace+0x0/0x43c [ 221.581819][ T6233] show_stack+0x2c/0x3c [ 221.582439][ T6233] __dump_stack+0x30/0x40 [ 221.583104][ T6233] dump_stack_lvl+0xf8/0x160 [ 221.583737][ T6233] dump_stack+0x1c/0x5c [ 221.584346][ T6233] sysfs_create_dir_ns+0x22c/0x24c [ 221.585071][ T6233] kobject_add_internal+0x590/0xc54 [ 221.585876][ T6233] kobject_init_and_add+0x118/0x17c [ 221.586680][ T6233] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.587370][ T6233] gfs2_fill_super+0xdac/0x19e0 [ 221.588124][ T6233] get_tree_bdev+0x358/0x544 [ 221.588815][ T6233] gfs2_get_tree+0x54/0x1b4 [ 221.589464][ T6233] vfs_get_tree+0x90/0x274 [ 221.590112][ T6233] do_new_mount+0x228/0x810 [ 221.590785][ T6233] path_mount+0x5b4/0x1000 [ 221.591465][ T6233] __arm64_sys_mount+0x514/0x5e4 [ 221.592150][ T6233] invoke_syscall+0x98/0x2b8 [ 221.592806][ T6233] el0_svc_common+0x138/0x258 [ 221.593456][ T6233] do_el0_svc+0x58/0x14c [ 221.594050][ T6233] el0_svc+0x78/0x1e0 [ 221.594639][ T6233] el0t_64_sync_handler+0xcc/0xe4 [ 221.595442][ T6233] el0t_64_sync+0x1a0/0x1a4 [ 221.603166][ T6233] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.617431][ T6233] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.710047][ T1630] team0 (unregistering): Port device team_slave_1 removed [ 221.714850][ T1630] team0 (unregistering): Port device team_slave_0 removed [ 221.719476][ T1630] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 221.761240][ T1630] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 221.802082][ T6235] loop1: detected capacity change from 0 to 32768 [ 221.868776][ T1630] bond0 (unregistering): Released all slaves [ 221.889617][ T6235] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.890834][ T6235] CPU: 0 PID: 6235 Comm: syz.1.622 Not tainted syzkaller #0 [ 221.891982][ T6235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 221.893529][ T6235] Call trace: [ 221.894023][ T6235] dump_backtrace+0x0/0x43c [ 221.894696][ T6235] show_stack+0x2c/0x3c [ 221.895344][ T6235] __dump_stack+0x30/0x40 [ 221.895970][ T6235] dump_stack_lvl+0xf8/0x160 [ 221.896656][ T6235] dump_stack+0x1c/0x5c [ 221.897305][ T6235] sysfs_create_dir_ns+0x22c/0x24c [ 221.898071][ T6235] kobject_add_internal+0x590/0xc54 [ 221.898821][ T6235] kobject_init_and_add+0x118/0x17c [ 221.899586][ T6235] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.900265][ T6235] gfs2_fill_super+0xdac/0x19e0 [ 221.901015][ T6235] get_tree_bdev+0x358/0x544 [ 221.901713][ T6235] gfs2_get_tree+0x54/0x1b4 [ 221.902380][ T6235] vfs_get_tree+0x90/0x274 [ 221.903031][ T6235] do_new_mount+0x228/0x810 [ 221.903688][ T6235] path_mount+0x5b4/0x1000 [ 221.904384][ T6235] __arm64_sys_mount+0x514/0x5e4 [ 221.905160][ T6235] invoke_syscall+0x98/0x2b8 [ 221.905851][ T6235] el0_svc_common+0x138/0x258 [ 221.906627][ T6235] do_el0_svc+0x58/0x14c [ 221.907287][ T6235] el0_svc+0x78/0x1e0 [ 221.907922][ T6235] el0t_64_sync_handler+0xcc/0xe4 [ 221.908684][ T6235] el0t_64_sync+0x1a0/0x1a4 [ 221.910878][ T6235] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.912935][ T6235] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.071766][ T6237] loop1: detected capacity change from 0 to 32768 [ 222.109577][ T6237] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.110788][ T6237] CPU: 0 PID: 6237 Comm: syz.1.623 Not tainted syzkaller #0 [ 222.112046][ T6237] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 222.113590][ T6237] Call trace: [ 222.114068][ T6237] dump_backtrace+0x0/0x43c [ 222.114776][ T6237] show_stack+0x2c/0x3c [ 222.115416][ T6237] __dump_stack+0x30/0x40 [ 222.116077][ T6237] dump_stack_lvl+0xf8/0x160 [ 222.116767][ T6237] dump_stack+0x1c/0x5c [ 222.117404][ T6237] sysfs_create_dir_ns+0x22c/0x24c [ 222.118133][ T6237] kobject_add_internal+0x590/0xc54 [ 222.118895][ T6237] kobject_init_and_add+0x118/0x17c [ 222.119657][ T6237] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.120387][ T6237] gfs2_fill_super+0xdac/0x19e0 [ 222.121095][ T6237] get_tree_bdev+0x358/0x544 [ 222.121775][ T6237] gfs2_get_tree+0x54/0x1b4 [ 222.122409][ T6237] vfs_get_tree+0x90/0x274 [ 222.123075][ T6237] do_new_mount+0x228/0x810 [ 222.123722][ T6237] path_mount+0x5b4/0x1000 [ 222.124361][ T6237] __arm64_sys_mount+0x514/0x5e4 [ 222.125056][ T6237] invoke_syscall+0x98/0x2b8 [ 222.125750][ T6237] el0_svc_common+0x138/0x258 [ 222.126459][ T6237] do_el0_svc+0x58/0x14c [ 222.127083][ T6237] el0_svc+0x78/0x1e0 [ 222.127709][ T6237] el0t_64_sync_handler+0xcc/0xe4 [ 222.128465][ T6237] el0t_64_sync+0x1a0/0x1a4 [ 222.132213][ T6237] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.134154][ T6237] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.278466][ T6239] loop1: detected capacity change from 0 to 32768 [ 222.317173][ T6239] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.318501][ T6239] CPU: 1 PID: 6239 Comm: syz.1.624 Not tainted syzkaller #0 [ 222.319650][ T6239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 222.321276][ T6239] Call trace: [ 222.321803][ T6239] dump_backtrace+0x0/0x43c [ 222.322511][ T6239] show_stack+0x2c/0x3c [ 222.323094][ T6239] __dump_stack+0x30/0x40 [ 222.323695][ T6239] dump_stack_lvl+0xf8/0x160 [ 222.324393][ T6239] dump_stack+0x1c/0x5c [ 222.325020][ T6239] sysfs_create_dir_ns+0x22c/0x24c [ 222.325780][ T6239] kobject_add_internal+0x590/0xc54 [ 222.326528][ T6239] kobject_init_and_add+0x118/0x17c [ 222.327341][ T6239] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.328058][ T6239] gfs2_fill_super+0xdac/0x19e0 [ 222.328844][ T6239] get_tree_bdev+0x358/0x544 [ 222.329567][ T6239] gfs2_get_tree+0x54/0x1b4 [ 222.330260][ T6239] vfs_get_tree+0x90/0x274 [ 222.330911][ T6239] do_new_mount+0x228/0x810 [ 222.331555][ T6239] path_mount+0x5b4/0x1000 [ 222.332202][ T6239] __arm64_sys_mount+0x514/0x5e4 [ 222.332942][ T6239] invoke_syscall+0x98/0x2b8 [ 222.333665][ T6239] el0_svc_common+0x138/0x258 [ 222.334392][ T6239] do_el0_svc+0x58/0x14c [ 222.335071][ T6239] el0_svc+0x78/0x1e0 [ 222.335658][ T6239] el0t_64_sync_handler+0xcc/0xe4 [ 222.336485][ T6239] el0t_64_sync+0x1a0/0x1a4 [ 222.337619][ T6239] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.339767][ T6239] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.476589][ T6241] loop1: detected capacity change from 0 to 32768 [ 222.516792][ T6241] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.518067][ T6241] CPU: 0 PID: 6241 Comm: syz.1.625 Not tainted syzkaller #0 [ 222.519103][ T6241] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 222.520667][ T6241] Call trace: [ 222.521163][ T6241] dump_backtrace+0x0/0x43c [ 222.521850][ T6241] show_stack+0x2c/0x3c [ 222.522487][ T6241] __dump_stack+0x30/0x40 [ 222.523097][ T6241] dump_stack_lvl+0xf8/0x160 [ 222.523715][ T6241] dump_stack+0x1c/0x5c [ 222.524358][ T6241] sysfs_create_dir_ns+0x22c/0x24c [ 222.525121][ T6241] kobject_add_internal+0x590/0xc54 [ 222.525914][ T6241] kobject_init_and_add+0x118/0x17c [ 222.526698][ T6241] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.527406][ T6241] gfs2_fill_super+0xdac/0x19e0 [ 222.528116][ T6241] get_tree_bdev+0x358/0x544 [ 222.528822][ T6241] gfs2_get_tree+0x54/0x1b4 [ 222.529456][ T6241] vfs_get_tree+0x90/0x274 [ 222.530063][ T6241] do_new_mount+0x228/0x810 [ 222.530743][ T6241] path_mount+0x5b4/0x1000 [ 222.531455][ T6241] __arm64_sys_mount+0x514/0x5e4 [ 222.532285][ T6241] invoke_syscall+0x98/0x2b8 [ 222.533025][ T6241] el0_svc_common+0x138/0x258 [ 222.533725][ T6241] do_el0_svc+0x58/0x14c [ 222.534425][ T6241] el0_svc+0x78/0x1e0 [ 222.535069][ T6241] el0t_64_sync_handler+0xcc/0xe4 [ 222.535842][ T6241] el0t_64_sync+0x1a0/0x1a4 [ 222.537508][ T6241] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.539468][ T6241] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.785815][ T6243] loop1: detected capacity change from 0 to 32768 [ 222.845313][ T6243] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.846574][ T6243] CPU: 1 PID: 6243 Comm: syz.1.626 Not tainted syzkaller #0 [ 222.847729][ T6243] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 222.849448][ T6243] Call trace: [ 222.849947][ T6243] dump_backtrace+0x0/0x43c [ 222.850656][ T6243] show_stack+0x2c/0x3c [ 222.851294][ T6243] __dump_stack+0x30/0x40 [ 222.851987][ T6243] dump_stack_lvl+0xf8/0x160 [ 222.852660][ T6243] dump_stack+0x1c/0x5c [ 222.853301][ T6243] sysfs_create_dir_ns+0x22c/0x24c [ 222.854059][ T6243] kobject_add_internal+0x590/0xc54 [ 222.854868][ T6243] kobject_init_and_add+0x118/0x17c [ 222.855669][ T6243] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.856406][ T6243] gfs2_fill_super+0xdac/0x19e0 [ 222.857088][ T6243] get_tree_bdev+0x358/0x544 [ 222.857774][ T6243] gfs2_get_tree+0x54/0x1b4 [ 222.858446][ T6243] vfs_get_tree+0x90/0x274 [ 222.859126][ T6243] do_new_mount+0x228/0x810 [ 222.859779][ T6243] path_mount+0x5b4/0x1000 [ 222.860502][ T6243] __arm64_sys_mount+0x514/0x5e4 [ 222.861245][ T6243] invoke_syscall+0x98/0x2b8 [ 222.861935][ T6243] el0_svc_common+0x138/0x258 [ 222.862648][ T6243] do_el0_svc+0x58/0x14c [ 222.863227][ T6243] el0_svc+0x78/0x1e0 [ 222.863895][ T6243] el0t_64_sync_handler+0xcc/0xe4 [ 222.864667][ T6243] el0t_64_sync+0x1a0/0x1a4 [ 222.865650][ T6243] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.867854][ T6243] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.037206][ T6245] loop1: detected capacity change from 0 to 32768 [ 223.133328][ T6245] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.134641][ T6245] CPU: 1 PID: 6245 Comm: syz.1.627 Not tainted syzkaller #0 [ 223.135801][ T6245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 223.137406][ T6245] Call trace: [ 223.137913][ T6245] dump_backtrace+0x0/0x43c [ 223.138632][ T6245] show_stack+0x2c/0x3c [ 223.139279][ T6245] __dump_stack+0x30/0x40 [ 223.139936][ T6245] dump_stack_lvl+0xf8/0x160 [ 223.140593][ T6245] dump_stack+0x1c/0x5c [ 223.141243][ T6245] sysfs_create_dir_ns+0x22c/0x24c [ 223.142012][ T6245] kobject_add_internal+0x590/0xc54 [ 223.142778][ T6245] kobject_init_and_add+0x118/0x17c [ 223.143624][ T6245] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.144391][ T6245] gfs2_fill_super+0xdac/0x19e0 [ 223.145130][ T6245] get_tree_bdev+0x358/0x544 [ 223.145831][ T6245] gfs2_get_tree+0x54/0x1b4 [ 223.146484][ T6245] vfs_get_tree+0x90/0x274 [ 223.147153][ T6245] do_new_mount+0x228/0x810 [ 223.147833][ T6245] path_mount+0x5b4/0x1000 [ 223.148505][ T6245] __arm64_sys_mount+0x514/0x5e4 [ 223.149317][ T6245] invoke_syscall+0x98/0x2b8 [ 223.150012][ T6245] el0_svc_common+0x138/0x258 [ 223.150751][ T6245] do_el0_svc+0x58/0x14c [ 223.151401][ T6245] el0_svc+0x78/0x1e0 [ 223.152013][ T6245] el0t_64_sync_handler+0xcc/0xe4 [ 223.152784][ T6245] el0t_64_sync+0x1a0/0x1a4 [ 223.183313][ T6245] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.186765][ T6245] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.285263][ T4051] Bluetooth: hci2: command 0x041b tx timeout [ 223.449103][ T6247] loop1: detected capacity change from 0 to 32768 [ 223.457589][ T6247] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.458806][ T6247] CPU: 1 PID: 6247 Comm: syz.1.628 Not tainted syzkaller #0 [ 223.459874][ T6247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 223.461409][ T6247] Call trace: [ 223.461882][ T6247] dump_backtrace+0x0/0x43c [ 223.462531][ T6247] show_stack+0x2c/0x3c [ 223.463114][ T6247] __dump_stack+0x30/0x40 [ 223.463762][ T6247] dump_stack_lvl+0xf8/0x160 [ 223.464409][ T6247] dump_stack+0x1c/0x5c [ 223.465030][ T6247] sysfs_create_dir_ns+0x22c/0x24c [ 223.465836][ T6247] kobject_add_internal+0x590/0xc54 [ 223.466595][ T6247] kobject_init_and_add+0x118/0x17c [ 223.467411][ T6247] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.468123][ T6247] gfs2_fill_super+0xdac/0x19e0 [ 223.468884][ T6247] get_tree_bdev+0x358/0x544 [ 223.469575][ T6247] gfs2_get_tree+0x54/0x1b4 [ 223.470296][ T6247] vfs_get_tree+0x90/0x274 [ 223.471007][ T6247] do_new_mount+0x228/0x810 [ 223.471721][ T6247] path_mount+0x5b4/0x1000 [ 223.472362][ T6247] __arm64_sys_mount+0x514/0x5e4 [ 223.473163][ T6247] invoke_syscall+0x98/0x2b8 [ 223.473828][ T6247] el0_svc_common+0x138/0x258 [ 223.474524][ T6247] do_el0_svc+0x58/0x14c [ 223.475206][ T6247] el0_svc+0x78/0x1e0 [ 223.475799][ T6247] el0t_64_sync_handler+0xcc/0xe4 [ 223.476590][ T6247] el0t_64_sync+0x1a0/0x1a4 [ 223.478761][ T6247] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.480823][ T6247] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.668479][ T6249] loop1: detected capacity change from 0 to 32768 [ 223.710542][ T6249] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.711763][ T6249] CPU: 1 PID: 6249 Comm: syz.1.629 Not tainted syzkaller #0 [ 223.712934][ T6249] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 223.714501][ T6249] Call trace: [ 223.714975][ T6249] dump_backtrace+0x0/0x43c [ 223.715677][ T6249] show_stack+0x2c/0x3c [ 223.716338][ T6249] __dump_stack+0x30/0x40 [ 223.717013][ T6249] dump_stack_lvl+0xf8/0x160 [ 223.717726][ T6249] dump_stack+0x1c/0x5c [ 223.718349][ T6249] sysfs_create_dir_ns+0x22c/0x24c [ 223.719139][ T6249] kobject_add_internal+0x590/0xc54 [ 223.719963][ T6249] kobject_init_and_add+0x118/0x17c [ 223.720766][ T6249] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.721531][ T6249] gfs2_fill_super+0xdac/0x19e0 [ 223.722256][ T6249] get_tree_bdev+0x358/0x544 [ 223.722939][ T6249] gfs2_get_tree+0x54/0x1b4 [ 223.723590][ T6249] vfs_get_tree+0x90/0x274 [ 223.724236][ T6249] do_new_mount+0x228/0x810 [ 223.724944][ T6249] path_mount+0x5b4/0x1000 [ 223.725613][ T6249] __arm64_sys_mount+0x514/0x5e4 [ 223.726349][ T6249] invoke_syscall+0x98/0x2b8 [ 223.727054][ T6249] el0_svc_common+0x138/0x258 [ 223.727723][ T6249] do_el0_svc+0x58/0x14c [ 223.728363][ T6249] el0_svc+0x78/0x1e0 [ 223.728958][ T6249] el0t_64_sync_handler+0xcc/0xe4 [ 223.729711][ T6249] el0t_64_sync+0x1a0/0x1a4 [ 223.731950][ T6249] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.734044][ T6249] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.876753][ T6251] loop1: detected capacity change from 0 to 32768 [ 223.916996][ T6251] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.918898][ T6251] CPU: 1 PID: 6251 Comm: syz.1.630 Not tainted syzkaller #0 [ 223.919914][ T6251] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 223.921340][ T6251] Call trace: [ 223.921796][ T6251] dump_backtrace+0x0/0x43c [ 223.922452][ T6251] show_stack+0x2c/0x3c [ 223.923023][ T6251] __dump_stack+0x30/0x40 [ 223.923616][ T6251] dump_stack_lvl+0xf8/0x160 [ 223.924245][ T6251] dump_stack+0x1c/0x5c [ 223.924810][ T6251] sysfs_create_dir_ns+0x22c/0x24c [ 223.925575][ T6251] kobject_add_internal+0x590/0xc54 [ 223.926329][ T6251] kobject_init_and_add+0x118/0x17c [ 223.927085][ T6251] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.927812][ T6251] gfs2_fill_super+0xdac/0x19e0 [ 223.928585][ T6251] get_tree_bdev+0x358/0x544 [ 223.929325][ T6251] gfs2_get_tree+0x54/0x1b4 [ 223.930033][ T6251] vfs_get_tree+0x90/0x274 [ 223.930784][ T6251] do_new_mount+0x228/0x810 [ 223.931464][ T6251] path_mount+0x5b4/0x1000 [ 223.932138][ T6251] __arm64_sys_mount+0x514/0x5e4 [ 223.932912][ T6251] invoke_syscall+0x98/0x2b8 [ 223.933661][ T6251] el0_svc_common+0x138/0x258 [ 223.934349][ T6251] do_el0_svc+0x58/0x14c [ 223.934997][ T6251] el0_svc+0x78/0x1e0 [ 223.935582][ T6251] el0t_64_sync_handler+0xcc/0xe4 [ 223.936344][ T6251] el0t_64_sync+0x1a0/0x1a4 [ 223.938085][ T6251] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.940028][ T6251] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.076853][ T6253] loop1: detected capacity change from 0 to 32768 [ 224.160392][ T6253] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.161692][ T6253] CPU: 0 PID: 6253 Comm: syz.1.631 Not tainted syzkaller #0 [ 224.162860][ T6253] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.164480][ T6253] Call trace: [ 224.165034][ T6253] dump_backtrace+0x0/0x43c [ 224.165772][ T6253] show_stack+0x2c/0x3c [ 224.166445][ T6253] __dump_stack+0x30/0x40 [ 224.167143][ T6253] dump_stack_lvl+0xf8/0x160 [ 224.167886][ T6253] dump_stack+0x1c/0x5c [ 224.168556][ T6253] sysfs_create_dir_ns+0x22c/0x24c [ 224.169405][ T6253] kobject_add_internal+0x590/0xc54 [ 224.170195][ T6253] kobject_init_and_add+0x118/0x17c [ 224.171058][ T6253] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.171783][ T6253] gfs2_fill_super+0xdac/0x19e0 [ 224.172451][ T6253] get_tree_bdev+0x358/0x544 [ 224.173138][ T6253] gfs2_get_tree+0x54/0x1b4 [ 224.173757][ T6253] vfs_get_tree+0x90/0x274 [ 224.174380][ T6253] do_new_mount+0x228/0x810 [ 224.175042][ T6253] path_mount+0x5b4/0x1000 [ 224.175678][ T6253] __arm64_sys_mount+0x514/0x5e4 [ 224.176440][ T6253] invoke_syscall+0x98/0x2b8 [ 224.177128][ T6253] el0_svc_common+0x138/0x258 [ 224.177818][ T6253] do_el0_svc+0x58/0x14c [ 224.178489][ T6253] el0_svc+0x78/0x1e0 [ 224.179077][ T6253] el0t_64_sync_handler+0xcc/0xe4 [ 224.179817][ T6253] el0t_64_sync+0x1a0/0x1a4 [ 224.181481][ T6253] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.183631][ T6253] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.315800][ T6255] loop1: detected capacity change from 0 to 32768 [ 224.410200][ T6255] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.411417][ T6255] CPU: 0 PID: 6255 Comm: syz.1.632 Not tainted syzkaller #0 [ 224.412617][ T6255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.414071][ T6255] Call trace: [ 224.414522][ T6255] dump_backtrace+0x0/0x43c [ 224.415270][ T6255] show_stack+0x2c/0x3c [ 224.415967][ T6255] __dump_stack+0x30/0x40 [ 224.416662][ T6255] dump_stack_lvl+0xf8/0x160 [ 224.417386][ T6255] dump_stack+0x1c/0x5c [ 224.417991][ T6255] sysfs_create_dir_ns+0x22c/0x24c [ 224.418668][ T6255] kobject_add_internal+0x590/0xc54 [ 224.419423][ T6255] kobject_init_and_add+0x118/0x17c [ 224.420127][ T6255] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.420829][ T6255] gfs2_fill_super+0xdac/0x19e0 [ 224.421564][ T6255] get_tree_bdev+0x358/0x544 [ 224.422240][ T6255] gfs2_get_tree+0x54/0x1b4 [ 224.422894][ T6255] vfs_get_tree+0x90/0x274 [ 224.423598][ T6255] do_new_mount+0x228/0x810 [ 224.424273][ T6255] path_mount+0x5b4/0x1000 [ 224.424923][ T6255] __arm64_sys_mount+0x514/0x5e4 [ 224.425655][ T6255] invoke_syscall+0x98/0x2b8 [ 224.426270][ T6255] el0_svc_common+0x138/0x258 [ 224.426916][ T6255] do_el0_svc+0x58/0x14c [ 224.427598][ T6255] el0_svc+0x78/0x1e0 [ 224.428295][ T6255] el0t_64_sync_handler+0xcc/0xe4 [ 224.429102][ T6255] el0t_64_sync+0x1a0/0x1a4 [ 224.429951][ T6255] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.432032][ T6255] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.569533][ T6257] loop1: detected capacity change from 0 to 32768 [ 224.578113][ T6257] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.579486][ T6257] CPU: 1 PID: 6257 Comm: syz.1.633 Not tainted syzkaller #0 [ 224.580664][ T6257] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.582217][ T6257] Call trace: [ 224.582739][ T6257] dump_backtrace+0x0/0x43c [ 224.583386][ T6257] show_stack+0x2c/0x3c [ 224.583933][ T6257] __dump_stack+0x30/0x40 [ 224.584605][ T6257] dump_stack_lvl+0xf8/0x160 [ 224.585304][ T6257] dump_stack+0x1c/0x5c [ 224.585944][ T6257] sysfs_create_dir_ns+0x22c/0x24c [ 224.586727][ T6257] kobject_add_internal+0x590/0xc54 [ 224.587465][ T6257] kobject_init_and_add+0x118/0x17c [ 224.588272][ T6257] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.588961][ T6257] gfs2_fill_super+0xdac/0x19e0 [ 224.589695][ T6257] get_tree_bdev+0x358/0x544 [ 224.590370][ T6257] gfs2_get_tree+0x54/0x1b4 [ 224.590994][ T6257] vfs_get_tree+0x90/0x274 [ 224.591727][ T6257] do_new_mount+0x228/0x810 [ 224.592401][ T6257] path_mount+0x5b4/0x1000 [ 224.593077][ T6257] __arm64_sys_mount+0x514/0x5e4 [ 224.593811][ T6257] invoke_syscall+0x98/0x2b8 [ 224.594499][ T6257] el0_svc_common+0x138/0x258 [ 224.595206][ T6257] do_el0_svc+0x58/0x14c [ 224.595800][ T6257] el0_svc+0x78/0x1e0 [ 224.596386][ T6257] el0t_64_sync_handler+0xcc/0xe4 [ 224.597106][ T6257] el0t_64_sync+0x1a0/0x1a4 [ 224.599259][ T6257] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.601290][ T6257] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.744035][ T6259] loop1: detected capacity change from 0 to 32768 [ 224.751496][ T6259] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.752604][ T6259] CPU: 0 PID: 6259 Comm: syz.1.634 Not tainted syzkaller #0 [ 224.753605][ T6259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.755119][ T6259] Call trace: [ 224.755596][ T6259] dump_backtrace+0x0/0x43c [ 224.756314][ T6259] show_stack+0x2c/0x3c [ 224.756936][ T6259] __dump_stack+0x30/0x40 [ 224.757581][ T6259] dump_stack_lvl+0xf8/0x160 [ 224.758223][ T6259] dump_stack+0x1c/0x5c [ 224.758860][ T6259] sysfs_create_dir_ns+0x22c/0x24c [ 224.759653][ T6259] kobject_add_internal+0x590/0xc54 [ 224.760469][ T6259] kobject_init_and_add+0x118/0x17c [ 224.761300][ T6259] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.761953][ T6259] gfs2_fill_super+0xdac/0x19e0 [ 224.762683][ T6259] get_tree_bdev+0x358/0x544 [ 224.763403][ T6259] gfs2_get_tree+0x54/0x1b4 [ 224.764046][ T6259] vfs_get_tree+0x90/0x274 [ 224.764747][ T6259] do_new_mount+0x228/0x810 [ 224.765385][ T6259] path_mount+0x5b4/0x1000 [ 224.766122][ T6259] __arm64_sys_mount+0x514/0x5e4 [ 224.766813][ T6259] invoke_syscall+0x98/0x2b8 [ 224.767443][ T6259] el0_svc_common+0x138/0x258 [ 224.768182][ T6259] do_el0_svc+0x58/0x14c [ 224.768858][ T6259] el0_svc+0x78/0x1e0 [ 224.769470][ T6259] el0t_64_sync_handler+0xcc/0xe4 [ 224.770197][ T6259] el0t_64_sync+0x1a0/0x1a4 [ 224.771186][ T6259] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.773307][ T6259] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.910275][ T6261] loop1: detected capacity change from 0 to 32768 [ 224.950830][ T6261] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.952039][ T6261] CPU: 0 PID: 6261 Comm: syz.1.635 Not tainted syzkaller #0 [ 224.953308][ T6261] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.954848][ T6261] Call trace: [ 224.955354][ T6261] dump_backtrace+0x0/0x43c [ 224.956071][ T6261] show_stack+0x2c/0x3c [ 224.956718][ T6261] __dump_stack+0x30/0x40 [ 224.957366][ T6261] dump_stack_lvl+0xf8/0x160 [ 224.958043][ T6261] dump_stack+0x1c/0x5c [ 224.958655][ T6261] sysfs_create_dir_ns+0x22c/0x24c [ 224.959448][ T6261] kobject_add_internal+0x590/0xc54 [ 224.960265][ T6261] kobject_init_and_add+0x118/0x17c [ 224.961048][ T6261] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.961780][ T6261] gfs2_fill_super+0xdac/0x19e0 [ 224.962480][ T6261] get_tree_bdev+0x358/0x544 [ 224.963199][ T6261] gfs2_get_tree+0x54/0x1b4 [ 224.963900][ T6261] vfs_get_tree+0x90/0x274 [ 224.964521][ T6261] do_new_mount+0x228/0x810 [ 224.965219][ T6261] path_mount+0x5b4/0x1000 [ 224.965970][ T6261] __arm64_sys_mount+0x514/0x5e4 [ 224.966752][ T6261] invoke_syscall+0x98/0x2b8 [ 224.967450][ T6261] el0_svc_common+0x138/0x258 [ 224.968207][ T6261] do_el0_svc+0x58/0x14c [ 224.968830][ T6261] el0_svc+0x78/0x1e0 [ 224.969445][ T6261] el0t_64_sync_handler+0xcc/0xe4 [ 224.970199][ T6261] el0t_64_sync+0x1a0/0x1a4 [ 224.971336][ T6261] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.973577][ T6261] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.197259][ T6263] loop1: detected capacity change from 0 to 32768 [ 225.260805][ T6263] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.262091][ T6263] CPU: 0 PID: 6263 Comm: syz.1.636 Not tainted syzkaller #0 [ 225.263139][ T6263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 225.264686][ T6263] Call trace: [ 225.265182][ T6263] dump_backtrace+0x0/0x43c [ 225.265853][ T6263] show_stack+0x2c/0x3c [ 225.266545][ T6263] __dump_stack+0x30/0x40 [ 225.267233][ T6263] dump_stack_lvl+0xf8/0x160 [ 225.267918][ T6263] dump_stack+0x1c/0x5c [ 225.268477][ T6263] sysfs_create_dir_ns+0x22c/0x24c [ 225.269271][ T6263] kobject_add_internal+0x590/0xc54 [ 225.270083][ T6263] kobject_init_and_add+0x118/0x17c [ 225.270821][ T6263] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.271495][ T6263] gfs2_fill_super+0xdac/0x19e0 [ 225.272247][ T6263] get_tree_bdev+0x358/0x544 [ 225.272974][ T6263] gfs2_get_tree+0x54/0x1b4 [ 225.273656][ T6263] vfs_get_tree+0x90/0x274 [ 225.274291][ T6263] do_new_mount+0x228/0x810 [ 225.274972][ T6263] path_mount+0x5b4/0x1000 [ 225.275629][ T6263] __arm64_sys_mount+0x514/0x5e4 [ 225.276384][ T6263] invoke_syscall+0x98/0x2b8 [ 225.277089][ T6263] el0_svc_common+0x138/0x258 [ 225.277795][ T6263] do_el0_svc+0x58/0x14c [ 225.278489][ T6263] el0_svc+0x78/0x1e0 [ 225.279095][ T6263] el0t_64_sync_handler+0xcc/0xe4 [ 225.279842][ T6263] el0t_64_sync+0x1a0/0x1a4 [ 225.282103][ T6263] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.284046][ T6263] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.375315][ T4051] Bluetooth: hci2: command 0x040f tx timeout [ 225.421783][ T6265] loop1: detected capacity change from 0 to 32768 [ 225.517412][ T6265] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.518568][ T6265] CPU: 0 PID: 6265 Comm: syz.1.637 Not tainted syzkaller #0 [ 225.519614][ T6265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 225.521119][ T6265] Call trace: [ 225.521636][ T6265] dump_backtrace+0x0/0x43c [ 225.522317][ T6265] show_stack+0x2c/0x3c [ 225.522897][ T6265] __dump_stack+0x30/0x40 [ 225.523546][ T6265] dump_stack_lvl+0xf8/0x160 [ 225.524158][ T6265] dump_stack+0x1c/0x5c [ 225.524792][ T6265] sysfs_create_dir_ns+0x22c/0x24c [ 225.525531][ T6265] kobject_add_internal+0x590/0xc54 [ 225.526385][ T6265] kobject_init_and_add+0x118/0x17c [ 225.527173][ T6265] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.527981][ T6265] gfs2_fill_super+0xdac/0x19e0 [ 225.528665][ T6265] get_tree_bdev+0x358/0x544 [ 225.529325][ T6265] gfs2_get_tree+0x54/0x1b4 [ 225.530018][ T6265] vfs_get_tree+0x90/0x274 [ 225.530671][ T6265] do_new_mount+0x228/0x810 [ 225.531416][ T6265] path_mount+0x5b4/0x1000 [ 225.532040][ T6265] __arm64_sys_mount+0x514/0x5e4 [ 225.532831][ T6265] invoke_syscall+0x98/0x2b8 [ 225.533513][ T6265] el0_svc_common+0x138/0x258 [ 225.534220][ T6265] do_el0_svc+0x58/0x14c [ 225.534890][ T6265] el0_svc+0x78/0x1e0 [ 225.535448][ T6265] el0t_64_sync_handler+0xcc/0xe4 [ 225.536195][ T6265] el0t_64_sync+0x1a0/0x1a4 [ 225.538346][ T6265] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.540293][ T6265] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:45 executed programs: 623 [ 225.777717][ T6267] loop1: detected capacity change from 0 to 32768 [ 225.817481][ T6267] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.818983][ T6267] CPU: 1 PID: 6267 Comm: syz.1.638 Not tainted syzkaller #0 [ 225.820083][ T6267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 225.821513][ T6267] Call trace: [ 225.822041][ T6267] dump_backtrace+0x0/0x43c [ 225.822686][ T6267] show_stack+0x2c/0x3c [ 225.823280][ T6267] __dump_stack+0x30/0x40 [ 225.823941][ T6267] dump_stack_lvl+0xf8/0x160 [ 225.824665][ T6267] dump_stack+0x1c/0x5c [ 225.825286][ T6267] sysfs_create_dir_ns+0x22c/0x24c [ 225.826114][ T6267] kobject_add_internal+0x590/0xc54 [ 225.826867][ T6267] kobject_init_and_add+0x118/0x17c [ 225.827680][ T6267] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.828423][ T6267] gfs2_fill_super+0xdac/0x19e0 [ 225.829152][ T6267] get_tree_bdev+0x358/0x544 [ 225.829859][ T6267] gfs2_get_tree+0x54/0x1b4 [ 225.830500][ T6267] vfs_get_tree+0x90/0x274 [ 225.831191][ T6267] do_new_mount+0x228/0x810 [ 225.831859][ T6267] path_mount+0x5b4/0x1000 [ 225.832531][ T6267] __arm64_sys_mount+0x514/0x5e4 [ 225.833335][ T6267] invoke_syscall+0x98/0x2b8 [ 225.833956][ T6267] el0_svc_common+0x138/0x258 [ 225.834637][ T6267] do_el0_svc+0x58/0x14c [ 225.835234][ T6267] el0_svc+0x78/0x1e0 [ 225.835944][ T6267] el0t_64_sync_handler+0xcc/0xe4 [ 225.836707][ T6267] el0t_64_sync+0x1a0/0x1a4 [ 225.838913][ T6267] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.841173][ T6267] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.984683][ T6269] loop1: detected capacity change from 0 to 32768 [ 225.992388][ T6269] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.993526][ T6269] CPU: 0 PID: 6269 Comm: syz.1.639 Not tainted syzkaller #0 [ 225.994594][ T6269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 225.996187][ T6269] Call trace: [ 225.996661][ T6269] dump_backtrace+0x0/0x43c [ 225.997291][ T6269] show_stack+0x2c/0x3c [ 225.998005][ T6269] __dump_stack+0x30/0x40 [ 225.998634][ T6269] dump_stack_lvl+0xf8/0x160 [ 225.999354][ T6269] dump_stack+0x1c/0x5c [ 225.999991][ T6269] sysfs_create_dir_ns+0x22c/0x24c [ 226.000734][ T6269] kobject_add_internal+0x590/0xc54 [ 226.001475][ T6269] kobject_init_and_add+0x118/0x17c [ 226.002299][ T6269] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.003017][ T6269] gfs2_fill_super+0xdac/0x19e0 [ 226.003742][ T6269] get_tree_bdev+0x358/0x544 [ 226.004493][ T6269] gfs2_get_tree+0x54/0x1b4 [ 226.005167][ T6269] vfs_get_tree+0x90/0x274 [ 226.005892][ T6269] do_new_mount+0x228/0x810 [ 226.006564][ T6269] path_mount+0x5b4/0x1000 [ 226.007244][ T6269] __arm64_sys_mount+0x514/0x5e4 [ 226.007964][ T6269] invoke_syscall+0x98/0x2b8 [ 226.008621][ T6269] el0_svc_common+0x138/0x258 [ 226.009298][ T6269] do_el0_svc+0x58/0x14c [ 226.009877][ T6269] el0_svc+0x78/0x1e0 [ 226.010540][ T6269] el0t_64_sync_handler+0xcc/0xe4 [ 226.011280][ T6269] el0t_64_sync+0x1a0/0x1a4 [ 226.012712][ T6269] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.014723][ T6269] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.161249][ T6271] loop1: detected capacity change from 0 to 32768 [ 226.166597][ T6271] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.167891][ T6271] CPU: 1 PID: 6271 Comm: syz.1.640 Not tainted syzkaller #0 [ 226.169098][ T6271] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 226.170716][ T6271] Call trace: [ 226.171201][ T6271] dump_backtrace+0x0/0x43c [ 226.171945][ T6271] show_stack+0x2c/0x3c [ 226.172631][ T6271] __dump_stack+0x30/0x40 [ 226.173331][ T6271] dump_stack_lvl+0xf8/0x160 [ 226.174021][ T6271] dump_stack+0x1c/0x5c [ 226.174655][ T6271] sysfs_create_dir_ns+0x22c/0x24c [ 226.175488][ T6271] kobject_add_internal+0x590/0xc54 [ 226.176293][ T6271] kobject_init_and_add+0x118/0x17c [ 226.177180][ T6271] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.177939][ T6271] gfs2_fill_super+0xdac/0x19e0 [ 226.178705][ T6271] get_tree_bdev+0x358/0x544 [ 226.179421][ T6271] gfs2_get_tree+0x54/0x1b4 [ 226.180136][ T6271] vfs_get_tree+0x90/0x274 [ 226.180812][ T6271] do_new_mount+0x228/0x810 [ 226.181488][ T6271] path_mount+0x5b4/0x1000 [ 226.182197][ T6271] __arm64_sys_mount+0x514/0x5e4 [ 226.182977][ T6271] invoke_syscall+0x98/0x2b8 [ 226.183686][ T6271] el0_svc_common+0x138/0x258 [ 226.184412][ T6271] do_el0_svc+0x58/0x14c [ 226.185012][ T6271] el0_svc+0x78/0x1e0 [ 226.185556][ T6271] el0t_64_sync_handler+0xcc/0xe4 [ 226.186292][ T6271] el0t_64_sync+0x1a0/0x1a4 [ 226.188626][ T6271] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.190616][ T6271] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.332601][ T6273] loop1: detected capacity change from 0 to 32768 [ 226.341378][ T6273] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.342657][ T6273] CPU: 0 PID: 6273 Comm: syz.1.641 Not tainted syzkaller #0 [ 226.343739][ T6273] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 226.345310][ T6273] Call trace: [ 226.345876][ T6273] dump_backtrace+0x0/0x43c [ 226.346568][ T6273] show_stack+0x2c/0x3c [ 226.347212][ T6273] __dump_stack+0x30/0x40 [ 226.347853][ T6273] dump_stack_lvl+0xf8/0x160 [ 226.348538][ T6273] dump_stack+0x1c/0x5c [ 226.349191][ T6273] sysfs_create_dir_ns+0x22c/0x24c [ 226.349950][ T6273] kobject_add_internal+0x590/0xc54 [ 226.350750][ T6273] kobject_init_and_add+0x118/0x17c [ 226.351502][ T6273] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.352165][ T6273] gfs2_fill_super+0xdac/0x19e0 [ 226.352920][ T6273] get_tree_bdev+0x358/0x544 [ 226.353590][ T6273] gfs2_get_tree+0x54/0x1b4 [ 226.354270][ T6273] vfs_get_tree+0x90/0x274 [ 226.354940][ T6273] do_new_mount+0x228/0x810 [ 226.355575][ T6273] path_mount+0x5b4/0x1000 [ 226.356321][ T6273] __arm64_sys_mount+0x514/0x5e4 [ 226.357081][ T6273] invoke_syscall+0x98/0x2b8 [ 226.357822][ T6273] el0_svc_common+0x138/0x258 [ 226.358472][ T6273] do_el0_svc+0x58/0x14c [ 226.359145][ T6273] el0_svc+0x78/0x1e0 [ 226.359718][ T6273] el0t_64_sync_handler+0xcc/0xe4 [ 226.360434][ T6273] el0t_64_sync+0x1a0/0x1a4 [ 226.362517][ T6273] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.364648][ T6273] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.503456][ T6275] loop1: detected capacity change from 0 to 32768 [ 226.540987][ T6275] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.542241][ T6275] CPU: 1 PID: 6275 Comm: syz.1.642 Not tainted syzkaller #0 [ 226.543424][ T6275] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 226.544979][ T6275] Call trace: [ 226.545471][ T6275] dump_backtrace+0x0/0x43c [ 226.546213][ T6275] show_stack+0x2c/0x3c [ 226.546915][ T6275] __dump_stack+0x30/0x40 [ 226.547580][ T6275] dump_stack_lvl+0xf8/0x160 [ 226.548213][ T6275] dump_stack+0x1c/0x5c [ 226.548793][ T6275] sysfs_create_dir_ns+0x22c/0x24c [ 226.549623][ T6275] kobject_add_internal+0x590/0xc54 [ 226.550437][ T6275] kobject_init_and_add+0x118/0x17c [ 226.551264][ T6275] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.551958][ T6275] gfs2_fill_super+0xdac/0x19e0 [ 226.552750][ T6275] get_tree_bdev+0x358/0x544 [ 226.553466][ T6275] gfs2_get_tree+0x54/0x1b4 [ 226.554114][ T6275] vfs_get_tree+0x90/0x274 [ 226.554801][ T6275] do_new_mount+0x228/0x810 [ 226.555490][ T6275] path_mount+0x5b4/0x1000 [ 226.556115][ T6275] __arm64_sys_mount+0x514/0x5e4 [ 226.556895][ T6275] invoke_syscall+0x98/0x2b8 [ 226.557535][ T6275] el0_svc_common+0x138/0x258 [ 226.558193][ T6275] do_el0_svc+0x58/0x14c [ 226.558818][ T6275] el0_svc+0x78/0x1e0 [ 226.559386][ T6275] el0t_64_sync_handler+0xcc/0xe4 [ 226.560185][ T6275] el0t_64_sync+0x1a0/0x1a4 [ 226.561553][ T6275] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.563626][ T6275] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.704017][ T6277] loop1: detected capacity change from 0 to 32768 [ 226.741836][ T6277] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.743124][ T6277] CPU: 1 PID: 6277 Comm: syz.1.643 Not tainted syzkaller #0 [ 226.744283][ T6277] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 226.745757][ T6277] Call trace: [ 226.746216][ T6277] dump_backtrace+0x0/0x43c [ 226.746854][ T6277] show_stack+0x2c/0x3c [ 226.747445][ T6277] __dump_stack+0x30/0x40 [ 226.748132][ T6277] dump_stack_lvl+0xf8/0x160 [ 226.748861][ T6277] dump_stack+0x1c/0x5c [ 226.749460][ T6277] sysfs_create_dir_ns+0x22c/0x24c [ 226.750233][ T6277] kobject_add_internal+0x590/0xc54 [ 226.750997][ T6277] kobject_init_and_add+0x118/0x17c [ 226.751789][ T6277] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.752482][ T6277] gfs2_fill_super+0xdac/0x19e0 [ 226.753241][ T6277] get_tree_bdev+0x358/0x544 [ 226.753955][ T6277] gfs2_get_tree+0x54/0x1b4 [ 226.754678][ T6277] vfs_get_tree+0x90/0x274 [ 226.755359][ T6277] do_new_mount+0x228/0x810 [ 226.756088][ T6277] path_mount+0x5b4/0x1000 [ 226.756777][ T6277] __arm64_sys_mount+0x514/0x5e4 [ 226.757547][ T6277] invoke_syscall+0x98/0x2b8 [ 226.758253][ T6277] el0_svc_common+0x138/0x258 [ 226.758960][ T6277] do_el0_svc+0x58/0x14c [ 226.759577][ T6277] el0_svc+0x78/0x1e0 [ 226.760233][ T6277] el0t_64_sync_handler+0xcc/0xe4 [ 226.760988][ T6277] el0t_64_sync+0x1a0/0x1a4 [ 226.762153][ T6277] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.764486][ T6277] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.897041][ T6279] loop1: detected capacity change from 0 to 32768 [ 226.926684][ T6279] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.927888][ T6279] CPU: 0 PID: 6279 Comm: syz.1.644 Not tainted syzkaller #0 [ 226.929036][ T6279] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 226.930704][ T6279] Call trace: [ 226.931153][ T6279] dump_backtrace+0x0/0x43c [ 226.931873][ T6279] show_stack+0x2c/0x3c [ 226.932484][ T6279] __dump_stack+0x30/0x40 [ 226.933150][ T6279] dump_stack_lvl+0xf8/0x160 [ 226.933905][ T6279] dump_stack+0x1c/0x5c [ 226.934532][ T6279] sysfs_create_dir_ns+0x22c/0x24c [ 226.935329][ T6279] kobject_add_internal+0x590/0xc54 [ 226.936146][ T6279] kobject_init_and_add+0x118/0x17c [ 226.936975][ T6279] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.937751][ T6279] gfs2_fill_super+0xdac/0x19e0 [ 226.938460][ T6279] get_tree_bdev+0x358/0x544 [ 226.939227][ T6279] gfs2_get_tree+0x54/0x1b4 [ 226.939854][ T6279] vfs_get_tree+0x90/0x274 [ 226.940525][ T6279] do_new_mount+0x228/0x810 [ 226.941195][ T6279] path_mount+0x5b4/0x1000 [ 226.941895][ T6279] __arm64_sys_mount+0x514/0x5e4 [ 226.942636][ T6279] invoke_syscall+0x98/0x2b8 [ 226.943387][ T6279] el0_svc_common+0x138/0x258 [ 226.944088][ T6279] do_el0_svc+0x58/0x14c [ 226.944799][ T6279] el0_svc+0x78/0x1e0 [ 226.945383][ T6279] el0t_64_sync_handler+0xcc/0xe4 [ 226.946130][ T6279] el0t_64_sync+0x1a0/0x1a4 [ 226.948642][ T6279] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.950742][ T6279] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.145038][ T6281] loop1: detected capacity change from 0 to 32768 [ 227.201289][ T6281] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.202583][ T6281] CPU: 1 PID: 6281 Comm: syz.1.645 Not tainted syzkaller #0 [ 227.203696][ T6281] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 227.205205][ T6281] Call trace: [ 227.205718][ T6281] dump_backtrace+0x0/0x43c [ 227.206454][ T6281] show_stack+0x2c/0x3c [ 227.207105][ T6281] __dump_stack+0x30/0x40 [ 227.207724][ T6281] dump_stack_lvl+0xf8/0x160 [ 227.208476][ T6281] dump_stack+0x1c/0x5c [ 227.209133][ T6281] sysfs_create_dir_ns+0x22c/0x24c [ 227.209867][ T6281] kobject_add_internal+0x590/0xc54 [ 227.210649][ T6281] kobject_init_and_add+0x118/0x17c [ 227.211443][ T6281] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.212128][ T6281] gfs2_fill_super+0xdac/0x19e0 [ 227.212828][ T6281] get_tree_bdev+0x358/0x544 [ 227.213466][ T6281] gfs2_get_tree+0x54/0x1b4 [ 227.214144][ T6281] vfs_get_tree+0x90/0x274 [ 227.214841][ T6281] do_new_mount+0x228/0x810 [ 227.215543][ T6281] path_mount+0x5b4/0x1000 [ 227.216229][ T6281] __arm64_sys_mount+0x514/0x5e4 [ 227.216995][ T6281] invoke_syscall+0x98/0x2b8 [ 227.217724][ T6281] el0_svc_common+0x138/0x258 [ 227.218395][ T6281] do_el0_svc+0x58/0x14c [ 227.219044][ T6281] el0_svc+0x78/0x1e0 [ 227.219691][ T6281] el0t_64_sync_handler+0xcc/0xe4 [ 227.220477][ T6281] el0t_64_sync+0x1a0/0x1a4 [ 227.221649][ T6281] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.223684][ T6281] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.361270][ T6283] loop1: detected capacity change from 0 to 32768 [ 227.401760][ T6283] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.402914][ T6283] CPU: 0 PID: 6283 Comm: syz.1.646 Not tainted syzkaller #0 [ 227.403990][ T6283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 227.405580][ T6283] Call trace: [ 227.406058][ T6283] dump_backtrace+0x0/0x43c [ 227.406740][ T6283] show_stack+0x2c/0x3c [ 227.407322][ T6283] __dump_stack+0x30/0x40 [ 227.408036][ T6283] dump_stack_lvl+0xf8/0x160 [ 227.408748][ T6283] dump_stack+0x1c/0x5c [ 227.409372][ T6283] sysfs_create_dir_ns+0x22c/0x24c [ 227.410125][ T6283] kobject_add_internal+0x590/0xc54 [ 227.410967][ T6283] kobject_init_and_add+0x118/0x17c [ 227.411706][ T6283] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.412479][ T6283] gfs2_fill_super+0xdac/0x19e0 [ 227.413198][ T6283] get_tree_bdev+0x358/0x544 [ 227.413984][ T6283] gfs2_get_tree+0x54/0x1b4 [ 227.414696][ T6283] vfs_get_tree+0x90/0x274 [ 227.415383][ T6283] do_new_mount+0x228/0x810 [ 227.416050][ T6283] path_mount+0x5b4/0x1000 [ 227.416783][ T6283] __arm64_sys_mount+0x514/0x5e4 [ 227.417478][ T6283] invoke_syscall+0x98/0x2b8 [ 227.418197][ T6283] el0_svc_common+0x138/0x258 [ 227.418957][ T6283] do_el0_svc+0x58/0x14c [ 227.419566][ T6283] el0_svc+0x78/0x1e0 [ 227.420217][ T6283] el0t_64_sync_handler+0xcc/0xe4 [ 227.420949][ T6283] el0t_64_sync+0x1a0/0x1a4 [ 227.423062][ T6283] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.425366][ T6283] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.445346][ T4051] Bluetooth: hci2: command 0x0419 tx timeout [ 227.564949][ T6285] loop1: detected capacity change from 0 to 32768 [ 227.607672][ T6285] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.609118][ T6285] CPU: 0 PID: 6285 Comm: syz.1.647 Not tainted syzkaller #0 [ 227.610188][ T6285] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 227.611685][ T6285] Call trace: [ 227.612168][ T6285] dump_backtrace+0x0/0x43c [ 227.612853][ T6285] show_stack+0x2c/0x3c [ 227.613440][ T6285] __dump_stack+0x30/0x40 [ 227.614066][ T6285] dump_stack_lvl+0xf8/0x160 [ 227.614694][ T6285] dump_stack+0x1c/0x5c [ 227.615261][ T6285] sysfs_create_dir_ns+0x22c/0x24c [ 227.616055][ T6285] kobject_add_internal+0x590/0xc54 [ 227.616869][ T6285] kobject_init_and_add+0x118/0x17c [ 227.617627][ T6285] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.618351][ T6285] gfs2_fill_super+0xdac/0x19e0 [ 227.619116][ T6285] get_tree_bdev+0x358/0x544 [ 227.619811][ T6285] gfs2_get_tree+0x54/0x1b4 [ 227.620441][ T6285] vfs_get_tree+0x90/0x274 [ 227.621118][ T6285] do_new_mount+0x228/0x810 [ 227.621779][ T6285] path_mount+0x5b4/0x1000 [ 227.622514][ T6285] __arm64_sys_mount+0x514/0x5e4 [ 227.623273][ T6285] invoke_syscall+0x98/0x2b8 [ 227.623950][ T6285] el0_svc_common+0x138/0x258 [ 227.624654][ T6285] do_el0_svc+0x58/0x14c [ 227.625283][ T6285] el0_svc+0x78/0x1e0 [ 227.625870][ T6285] el0t_64_sync_handler+0xcc/0xe4 [ 227.626624][ T6285] el0t_64_sync+0x1a0/0x1a4 [ 227.628783][ T6285] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.630755][ T6285] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.766929][ T6287] loop1: detected capacity change from 0 to 32768 [ 227.774673][ T6287] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.776014][ T6287] CPU: 1 PID: 6287 Comm: syz.1.648 Not tainted syzkaller #0 [ 227.777111][ T6287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 227.778642][ T6287] Call trace: [ 227.779084][ T6287] dump_backtrace+0x0/0x43c [ 227.779841][ T6287] show_stack+0x2c/0x3c [ 227.780436][ T6287] __dump_stack+0x30/0x40 [ 227.781083][ T6287] dump_stack_lvl+0xf8/0x160 [ 227.781794][ T6287] dump_stack+0x1c/0x5c [ 227.782361][ T6287] sysfs_create_dir_ns+0x22c/0x24c [ 227.783088][ T6287] kobject_add_internal+0x590/0xc54 [ 227.783941][ T6287] kobject_init_and_add+0x118/0x17c [ 227.784740][ T6287] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.785481][ T6287] gfs2_fill_super+0xdac/0x19e0 [ 227.786265][ T6287] get_tree_bdev+0x358/0x544 [ 227.786955][ T6287] gfs2_get_tree+0x54/0x1b4 [ 227.787615][ T6287] vfs_get_tree+0x90/0x274 [ 227.788271][ T6287] do_new_mount+0x228/0x810 [ 227.789057][ T6287] path_mount+0x5b4/0x1000 [ 227.789726][ T6287] __arm64_sys_mount+0x514/0x5e4 [ 227.790526][ T6287] invoke_syscall+0x98/0x2b8 [ 227.791235][ T6287] el0_svc_common+0x138/0x258 [ 227.791995][ T6287] do_el0_svc+0x58/0x14c [ 227.792593][ T6287] el0_svc+0x78/0x1e0 [ 227.793138][ T6287] el0t_64_sync_handler+0xcc/0xe4 [ 227.793957][ T6287] el0t_64_sync+0x1a0/0x1a4 [ 227.794751][ T6287] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.796895][ T6287] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.932318][ T6289] loop1: detected capacity change from 0 to 32768 [ 227.941573][ T6289] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.942880][ T6289] CPU: 1 PID: 6289 Comm: syz.1.649 Not tainted syzkaller #0 [ 227.944020][ T6289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 227.945417][ T6289] Call trace: [ 227.945900][ T6289] dump_backtrace+0x0/0x43c [ 227.946587][ T6289] show_stack+0x2c/0x3c [ 227.947219][ T6289] __dump_stack+0x30/0x40 [ 227.947827][ T6289] dump_stack_lvl+0xf8/0x160 [ 227.948534][ T6289] dump_stack+0x1c/0x5c [ 227.949115][ T6289] sysfs_create_dir_ns+0x22c/0x24c [ 227.949852][ T6289] kobject_add_internal+0x590/0xc54 [ 227.950600][ T6289] kobject_init_and_add+0x118/0x17c [ 227.951425][ T6289] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.952160][ T6289] gfs2_fill_super+0xdac/0x19e0 [ 227.952895][ T6289] get_tree_bdev+0x358/0x544 [ 227.953621][ T6289] gfs2_get_tree+0x54/0x1b4 [ 227.954302][ T6289] vfs_get_tree+0x90/0x274 [ 227.954918][ T6289] do_new_mount+0x228/0x810 [ 227.955576][ T6289] path_mount+0x5b4/0x1000 [ 227.956287][ T6289] __arm64_sys_mount+0x514/0x5e4 [ 227.957061][ T6289] invoke_syscall+0x98/0x2b8 [ 227.957765][ T6289] el0_svc_common+0x138/0x258 [ 227.958522][ T6289] do_el0_svc+0x58/0x14c [ 227.959155][ T6289] el0_svc+0x78/0x1e0 [ 227.959738][ T6289] el0t_64_sync_handler+0xcc/0xe4 [ 227.960509][ T6289] el0t_64_sync+0x1a0/0x1a4 [ 227.961588][ T6289] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.963466][ T6289] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.123666][ T6291] loop1: detected capacity change from 0 to 32768 [ 228.171459][ T6291] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.172628][ T6291] CPU: 1 PID: 6291 Comm: syz.1.650 Not tainted syzkaller #0 [ 228.173716][ T6291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 228.175261][ T6291] Call trace: [ 228.175754][ T6291] dump_backtrace+0x0/0x43c [ 228.176487][ T6291] show_stack+0x2c/0x3c [ 228.177122][ T6291] __dump_stack+0x30/0x40 [ 228.177792][ T6291] dump_stack_lvl+0xf8/0x160 [ 228.178518][ T6291] dump_stack+0x1c/0x5c [ 228.179220][ T6291] sysfs_create_dir_ns+0x22c/0x24c [ 228.180006][ T6291] kobject_add_internal+0x590/0xc54 [ 228.180807][ T6291] kobject_init_and_add+0x118/0x17c [ 228.181596][ T6291] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.182362][ T6291] gfs2_fill_super+0xdac/0x19e0 [ 228.183094][ T6291] get_tree_bdev+0x358/0x544 [ 228.183823][ T6291] gfs2_get_tree+0x54/0x1b4 [ 228.184512][ T6291] vfs_get_tree+0x90/0x274 [ 228.185189][ T6291] do_new_mount+0x228/0x810 [ 228.185890][ T6291] path_mount+0x5b4/0x1000 [ 228.186532][ T6291] __arm64_sys_mount+0x514/0x5e4 [ 228.187345][ T6291] invoke_syscall+0x98/0x2b8 [ 228.188080][ T6291] el0_svc_common+0x138/0x258 [ 228.188776][ T6291] do_el0_svc+0x58/0x14c [ 228.189422][ T6291] el0_svc+0x78/0x1e0 [ 228.190018][ T6291] el0t_64_sync_handler+0xcc/0xe4 [ 228.190770][ T6291] el0t_64_sync+0x1a0/0x1a4 [ 228.191640][ T6291] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.193524][ T6291] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.331713][ T6293] loop1: detected capacity change from 0 to 32768 [ 228.341365][ T6293] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.342590][ T6293] CPU: 0 PID: 6293 Comm: syz.1.651 Not tainted syzkaller #0 [ 228.343707][ T6293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 228.345061][ T6293] Call trace: [ 228.345568][ T6293] dump_backtrace+0x0/0x43c [ 228.346255][ T6293] show_stack+0x2c/0x3c [ 228.346873][ T6293] __dump_stack+0x30/0x40 [ 228.347548][ T6293] dump_stack_lvl+0xf8/0x160 [ 228.348291][ T6293] dump_stack+0x1c/0x5c [ 228.348871][ T6293] sysfs_create_dir_ns+0x22c/0x24c [ 228.349623][ T6293] kobject_add_internal+0x590/0xc54 [ 228.350430][ T6293] kobject_init_and_add+0x118/0x17c [ 228.351254][ T6293] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.351953][ T6293] gfs2_fill_super+0xdac/0x19e0 [ 228.352684][ T6293] get_tree_bdev+0x358/0x544 [ 228.353364][ T6293] gfs2_get_tree+0x54/0x1b4 [ 228.353973][ T6293] vfs_get_tree+0x90/0x274 [ 228.354608][ T6293] do_new_mount+0x228/0x810 [ 228.355286][ T6293] path_mount+0x5b4/0x1000 [ 228.355971][ T6293] __arm64_sys_mount+0x514/0x5e4 [ 228.356636][ T6293] invoke_syscall+0x98/0x2b8 [ 228.357364][ T6293] el0_svc_common+0x138/0x258 [ 228.358029][ T6293] do_el0_svc+0x58/0x14c [ 228.358740][ T6293] el0_svc+0x78/0x1e0 [ 228.359323][ T6293] el0t_64_sync_handler+0xcc/0xe4 [ 228.360031][ T6293] el0t_64_sync+0x1a0/0x1a4 [ 228.362801][ T6293] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.364910][ T6293] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.502088][ T6295] loop1: detected capacity change from 0 to 32768 [ 228.511224][ T6295] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.512391][ T6295] CPU: 0 PID: 6295 Comm: syz.1.652 Not tainted syzkaller #0 [ 228.513531][ T6295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 228.515171][ T6295] Call trace: [ 228.515692][ T6295] dump_backtrace+0x0/0x43c [ 228.516345][ T6295] show_stack+0x2c/0x3c [ 228.516924][ T6295] __dump_stack+0x30/0x40 [ 228.517621][ T6295] dump_stack_lvl+0xf8/0x160 [ 228.518290][ T6295] dump_stack+0x1c/0x5c [ 228.518900][ T6295] sysfs_create_dir_ns+0x22c/0x24c [ 228.519672][ T6295] kobject_add_internal+0x590/0xc54 [ 228.520483][ T6295] kobject_init_and_add+0x118/0x17c [ 228.521266][ T6295] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.522025][ T6295] gfs2_fill_super+0xdac/0x19e0 [ 228.522730][ T6295] get_tree_bdev+0x358/0x544 [ 228.523441][ T6295] gfs2_get_tree+0x54/0x1b4 [ 228.524070][ T6295] vfs_get_tree+0x90/0x274 [ 228.524678][ T6295] do_new_mount+0x228/0x810 [ 228.525380][ T6295] path_mount+0x5b4/0x1000 [ 228.525994][ T6295] __arm64_sys_mount+0x514/0x5e4 [ 228.526686][ T6295] invoke_syscall+0x98/0x2b8 [ 228.527330][ T6295] el0_svc_common+0x138/0x258 [ 228.528017][ T6295] do_el0_svc+0x58/0x14c [ 228.528677][ T6295] el0_svc+0x78/0x1e0 [ 228.529273][ T6295] el0t_64_sync_handler+0xcc/0xe4 [ 228.530023][ T6295] el0t_64_sync+0x1a0/0x1a4 [ 228.530929][ T6295] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.532790][ T6295] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.672045][ T6297] loop1: detected capacity change from 0 to 32768 [ 228.680497][ T6297] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.681632][ T6297] CPU: 1 PID: 6297 Comm: syz.1.653 Not tainted syzkaller #0 [ 228.682737][ T6297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 228.684257][ T6297] Call trace: [ 228.684759][ T6297] dump_backtrace+0x0/0x43c [ 228.685455][ T6297] show_stack+0x2c/0x3c [ 228.686135][ T6297] __dump_stack+0x30/0x40 [ 228.686850][ T6297] dump_stack_lvl+0xf8/0x160 [ 228.687538][ T6297] dump_stack+0x1c/0x5c [ 228.688208][ T6297] sysfs_create_dir_ns+0x22c/0x24c [ 228.688986][ T6297] kobject_add_internal+0x590/0xc54 [ 228.689818][ T6297] kobject_init_and_add+0x118/0x17c [ 228.690597][ T6297] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.691330][ T6297] gfs2_fill_super+0xdac/0x19e0 [ 228.692023][ T6297] get_tree_bdev+0x358/0x544 [ 228.692654][ T6297] gfs2_get_tree+0x54/0x1b4 [ 228.693330][ T6297] vfs_get_tree+0x90/0x274 [ 228.694077][ T6297] do_new_mount+0x228/0x810 [ 228.694772][ T6297] path_mount+0x5b4/0x1000 [ 228.695450][ T6297] __arm64_sys_mount+0x514/0x5e4 [ 228.696120][ T6297] invoke_syscall+0x98/0x2b8 [ 228.696852][ T6297] el0_svc_common+0x138/0x258 [ 228.697558][ T6297] do_el0_svc+0x58/0x14c [ 228.698223][ T6297] el0_svc+0x78/0x1e0 [ 228.698830][ T6297] el0t_64_sync_handler+0xcc/0xe4 [ 228.699533][ T6297] el0t_64_sync+0x1a0/0x1a4 [ 228.700353][ T6297] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.702292][ T6297] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.838866][ T6299] loop1: detected capacity change from 0 to 32768 [ 228.929769][ T6299] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.930959][ T6299] CPU: 1 PID: 6299 Comm: syz.1.654 Not tainted syzkaller #0 [ 228.932122][ T6299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 228.933574][ T6299] Call trace: [ 228.934078][ T6299] dump_backtrace+0x0/0x43c [ 228.934716][ T6299] show_stack+0x2c/0x3c [ 228.935338][ T6299] __dump_stack+0x30/0x40 [ 228.935990][ T6299] dump_stack_lvl+0xf8/0x160 [ 228.936677][ T6299] dump_stack+0x1c/0x5c [ 228.937321][ T6299] sysfs_create_dir_ns+0x22c/0x24c [ 228.938193][ T6299] kobject_add_internal+0x590/0xc54 [ 228.938962][ T6299] kobject_init_and_add+0x118/0x17c [ 228.939787][ T6299] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.940506][ T6299] gfs2_fill_super+0xdac/0x19e0 [ 228.941192][ T6299] get_tree_bdev+0x358/0x544 [ 228.941882][ T6299] gfs2_get_tree+0x54/0x1b4 [ 228.942648][ T6299] vfs_get_tree+0x90/0x274 [ 228.943264][ T6299] do_new_mount+0x228/0x810 [ 228.943888][ T6299] path_mount+0x5b4/0x1000 [ 228.944569][ T6299] __arm64_sys_mount+0x514/0x5e4 [ 228.945345][ T6299] invoke_syscall+0x98/0x2b8 [ 228.946019][ T6299] el0_svc_common+0x138/0x258 [ 228.946726][ T6299] do_el0_svc+0x58/0x14c [ 228.947364][ T6299] el0_svc+0x78/0x1e0 [ 228.947993][ T6299] el0t_64_sync_handler+0xcc/0xe4 [ 228.948712][ T6299] el0t_64_sync+0x1a0/0x1a4 [ 228.949556][ T6299] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.951538][ T6299] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.086409][ T6301] loop1: detected capacity change from 0 to 32768 [ 229.136744][ T6301] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.137950][ T6301] CPU: 0 PID: 6301 Comm: syz.1.655 Not tainted syzkaller #0 [ 229.139118][ T6301] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 229.140653][ T6301] Call trace: [ 229.141155][ T6301] dump_backtrace+0x0/0x43c [ 229.141846][ T6301] show_stack+0x2c/0x3c [ 229.142471][ T6301] __dump_stack+0x30/0x40 [ 229.143107][ T6301] dump_stack_lvl+0xf8/0x160 [ 229.143856][ T6301] dump_stack+0x1c/0x5c [ 229.144557][ T6301] sysfs_create_dir_ns+0x22c/0x24c [ 229.145352][ T6301] kobject_add_internal+0x590/0xc54 [ 229.146234][ T6301] kobject_init_and_add+0x118/0x17c [ 229.147032][ T6301] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.147808][ T6301] gfs2_fill_super+0xdac/0x19e0 [ 229.148572][ T6301] get_tree_bdev+0x358/0x544 [ 229.149263][ T6301] gfs2_get_tree+0x54/0x1b4 [ 229.149971][ T6301] vfs_get_tree+0x90/0x274 [ 229.150646][ T6301] do_new_mount+0x228/0x810 [ 229.151339][ T6301] path_mount+0x5b4/0x1000 [ 229.152076][ T6301] __arm64_sys_mount+0x514/0x5e4 [ 229.152776][ T6301] invoke_syscall+0x98/0x2b8 [ 229.153451][ T6301] el0_svc_common+0x138/0x258 [ 229.154180][ T6301] do_el0_svc+0x58/0x14c [ 229.154824][ T6301] el0_svc+0x78/0x1e0 [ 229.155440][ T6301] el0t_64_sync_handler+0xcc/0xe4 [ 229.156180][ T6301] el0t_64_sync+0x1a0/0x1a4 [ 229.158905][ T6301] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.160942][ T6301] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.294387][ T6303] loop1: detected capacity change from 0 to 32768 [ 229.360633][ T6303] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.361861][ T6303] CPU: 1 PID: 6303 Comm: syz.1.656 Not tainted syzkaller #0 [ 229.363049][ T6303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 229.364600][ T6303] Call trace: [ 229.365087][ T6303] dump_backtrace+0x0/0x43c [ 229.365760][ T6303] show_stack+0x2c/0x3c [ 229.366370][ T6303] __dump_stack+0x30/0x40 [ 229.367029][ T6303] dump_stack_lvl+0xf8/0x160 [ 229.367746][ T6303] dump_stack+0x1c/0x5c [ 229.368403][ T6303] sysfs_create_dir_ns+0x22c/0x24c [ 229.369136][ T6303] kobject_add_internal+0x590/0xc54 [ 229.369862][ T6303] kobject_init_and_add+0x118/0x17c [ 229.370662][ T6303] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.371420][ T6303] gfs2_fill_super+0xdac/0x19e0 [ 229.372138][ T6303] get_tree_bdev+0x358/0x544 [ 229.372827][ T6303] gfs2_get_tree+0x54/0x1b4 [ 229.373573][ T6303] vfs_get_tree+0x90/0x274 [ 229.374243][ T6303] do_new_mount+0x228/0x810 [ 229.374889][ T6303] path_mount+0x5b4/0x1000 [ 229.375538][ T6303] __arm64_sys_mount+0x514/0x5e4 [ 229.376247][ T6303] invoke_syscall+0x98/0x2b8 [ 229.376953][ T6303] el0_svc_common+0x138/0x258 [ 229.377665][ T6303] do_el0_svc+0x58/0x14c [ 229.378348][ T6303] el0_svc+0x78/0x1e0 [ 229.378906][ T6303] el0t_64_sync_handler+0xcc/0xe4 [ 229.379660][ T6303] el0t_64_sync+0x1a0/0x1a4 [ 229.380625][ T6303] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.382671][ T6303] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.629985][ T6305] loop1: detected capacity change from 0 to 32768 [ 229.672168][ T6305] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.673456][ T6305] CPU: 1 PID: 6305 Comm: syz.1.657 Not tainted syzkaller #0 [ 229.674495][ T6305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 229.675980][ T6305] Call trace: [ 229.676464][ T6305] dump_backtrace+0x0/0x43c [ 229.677071][ T6305] show_stack+0x2c/0x3c [ 229.677620][ T6305] __dump_stack+0x30/0x40 [ 229.678244][ T6305] dump_stack_lvl+0xf8/0x160 [ 229.678993][ T6305] dump_stack+0x1c/0x5c [ 229.679614][ T6305] sysfs_create_dir_ns+0x22c/0x24c [ 229.680395][ T6305] kobject_add_internal+0x590/0xc54 [ 229.681173][ T6305] kobject_init_and_add+0x118/0x17c [ 229.681949][ T6305] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.682688][ T6305] gfs2_fill_super+0xdac/0x19e0 [ 229.683385][ T6305] get_tree_bdev+0x358/0x544 [ 229.684092][ T6305] gfs2_get_tree+0x54/0x1b4 [ 229.684759][ T6305] vfs_get_tree+0x90/0x274 [ 229.685409][ T6305] do_new_mount+0x228/0x810 [ 229.686080][ T6305] path_mount+0x5b4/0x1000 [ 229.686745][ T6305] __arm64_sys_mount+0x514/0x5e4 [ 229.687459][ T6305] invoke_syscall+0x98/0x2b8 [ 229.688194][ T6305] el0_svc_common+0x138/0x258 [ 229.688914][ T6305] do_el0_svc+0x58/0x14c [ 229.689564][ T6305] el0_svc+0x78/0x1e0 [ 229.690165][ T6305] el0t_64_sync_handler+0xcc/0xe4 [ 229.690913][ T6305] el0t_64_sync+0x1a0/0x1a4 [ 229.692217][ T6305] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.694232][ T6305] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.828759][ T6307] loop1: detected capacity change from 0 to 32768 [ 229.836807][ T6307] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.838006][ T6307] CPU: 0 PID: 6307 Comm: syz.1.658 Not tainted syzkaller #0 [ 229.839156][ T6307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 229.840531][ T6307] Call trace: [ 229.841027][ T6307] dump_backtrace+0x0/0x43c [ 229.841757][ T6307] show_stack+0x2c/0x3c [ 229.842341][ T6307] __dump_stack+0x30/0x40 [ 229.843028][ T6307] dump_stack_lvl+0xf8/0x160 [ 229.843709][ T6307] dump_stack+0x1c/0x5c [ 229.844275][ T6307] sysfs_create_dir_ns+0x22c/0x24c [ 229.845072][ T6307] kobject_add_internal+0x590/0xc54 [ 229.845841][ T6307] kobject_init_and_add+0x118/0x17c [ 229.846596][ T6307] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.847356][ T6307] gfs2_fill_super+0xdac/0x19e0 [ 229.848077][ T6307] get_tree_bdev+0x358/0x544 [ 229.848800][ T6307] gfs2_get_tree+0x54/0x1b4 [ 229.849502][ T6307] vfs_get_tree+0x90/0x274 [ 229.850140][ T6307] do_new_mount+0x228/0x810 [ 229.850772][ T6307] path_mount+0x5b4/0x1000 [ 229.851376][ T6307] __arm64_sys_mount+0x514/0x5e4 [ 229.852091][ T6307] invoke_syscall+0x98/0x2b8 [ 229.852772][ T6307] el0_svc_common+0x138/0x258 [ 229.853442][ T6307] do_el0_svc+0x58/0x14c [ 229.854063][ T6307] el0_svc+0x78/0x1e0 [ 229.854738][ T6307] el0t_64_sync_handler+0xcc/0xe4 [ 229.855460][ T6307] el0t_64_sync+0x1a0/0x1a4 [ 229.856244][ T6307] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.858158][ T6307] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.001555][ T6309] loop1: detected capacity change from 0 to 32768 [ 230.006719][ T6309] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.007951][ T6309] CPU: 0 PID: 6309 Comm: syz.1.659 Not tainted syzkaller #0 [ 230.008962][ T6309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 230.010536][ T6309] Call trace: [ 230.011085][ T6309] dump_backtrace+0x0/0x43c [ 230.011836][ T6309] show_stack+0x2c/0x3c [ 230.012432][ T6309] __dump_stack+0x30/0x40 [ 230.013103][ T6309] dump_stack_lvl+0xf8/0x160 [ 230.013785][ T6309] dump_stack+0x1c/0x5c [ 230.014369][ T6309] sysfs_create_dir_ns+0x22c/0x24c [ 230.015077][ T6309] kobject_add_internal+0x590/0xc54 [ 230.015857][ T6309] kobject_init_and_add+0x118/0x17c [ 230.016673][ T6309] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.017399][ T6309] gfs2_fill_super+0xdac/0x19e0 [ 230.018205][ T6309] get_tree_bdev+0x358/0x544 [ 230.018988][ T6309] gfs2_get_tree+0x54/0x1b4 [ 230.019578][ T6309] vfs_get_tree+0x90/0x274 [ 230.020197][ T6309] do_new_mount+0x228/0x810 [ 230.020807][ T6309] path_mount+0x5b4/0x1000 [ 230.021459][ T6309] __arm64_sys_mount+0x514/0x5e4 [ 230.022203][ T6309] invoke_syscall+0x98/0x2b8 [ 230.022828][ T6309] el0_svc_common+0x138/0x258 [ 230.023455][ T6309] do_el0_svc+0x58/0x14c [ 230.024033][ T6309] el0_svc+0x78/0x1e0 [ 230.024566][ T6309] el0t_64_sync_handler+0xcc/0xe4 [ 230.025268][ T6309] el0t_64_sync+0x1a0/0x1a4 [ 230.026152][ T6309] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.028229][ T6309] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.224013][ T6311] loop1: detected capacity change from 0 to 32768 [ 230.276664][ T6311] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.277894][ T6311] CPU: 0 PID: 6311 Comm: syz.1.660 Not tainted syzkaller #0 [ 230.278982][ T6311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 230.280554][ T6311] Call trace: [ 230.281061][ T6311] dump_backtrace+0x0/0x43c [ 230.281747][ T6311] show_stack+0x2c/0x3c [ 230.282313][ T6311] __dump_stack+0x30/0x40 [ 230.282976][ T6311] dump_stack_lvl+0xf8/0x160 [ 230.283668][ T6311] dump_stack+0x1c/0x5c [ 230.284283][ T6311] sysfs_create_dir_ns+0x22c/0x24c [ 230.285136][ T6311] kobject_add_internal+0x590/0xc54 [ 230.285939][ T6311] kobject_init_and_add+0x118/0x17c [ 230.286743][ T6311] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.287477][ T6311] gfs2_fill_super+0xdac/0x19e0 [ 230.288245][ T6311] get_tree_bdev+0x358/0x544 [ 230.288953][ T6311] gfs2_get_tree+0x54/0x1b4 [ 230.289603][ T6311] vfs_get_tree+0x90/0x274 [ 230.290208][ T6311] do_new_mount+0x228/0x810 [ 230.290872][ T6311] path_mount+0x5b4/0x1000 [ 230.291503][ T6311] __arm64_sys_mount+0x514/0x5e4 [ 230.292285][ T6311] invoke_syscall+0x98/0x2b8 [ 230.292922][ T6311] el0_svc_common+0x138/0x258 [ 230.293637][ T6311] do_el0_svc+0x58/0x14c [ 230.294237][ T6311] el0_svc+0x78/0x1e0 [ 230.294836][ T6311] el0t_64_sync_handler+0xcc/0xe4 [ 230.295618][ T6311] el0t_64_sync+0x1a0/0x1a4 [ 230.301385][ T6311] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.303523][ T6311] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.450239][ T6313] loop1: detected capacity change from 0 to 32768 [ 230.501474][ T6313] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.502802][ T6313] CPU: 0 PID: 6313 Comm: syz.1.661 Not tainted syzkaller #0 [ 230.503818][ T6313] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 230.505282][ T6313] Call trace: [ 230.505849][ T6313] dump_backtrace+0x0/0x43c [ 230.506541][ T6313] show_stack+0x2c/0x3c [ 230.507153][ T6313] __dump_stack+0x30/0x40 [ 230.507776][ T6313] dump_stack_lvl+0xf8/0x160 [ 230.508442][ T6313] dump_stack+0x1c/0x5c [ 230.508996][ T6313] sysfs_create_dir_ns+0x22c/0x24c [ 230.509722][ T6313] kobject_add_internal+0x590/0xc54 [ 230.510480][ T6313] kobject_init_and_add+0x118/0x17c [ 230.511286][ T6313] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.512007][ T6313] gfs2_fill_super+0xdac/0x19e0 [ 230.512752][ T6313] get_tree_bdev+0x358/0x544 [ 230.513436][ T6313] gfs2_get_tree+0x54/0x1b4 [ 230.514036][ T6313] vfs_get_tree+0x90/0x274 [ 230.514795][ T6313] do_new_mount+0x228/0x810 [ 230.515498][ T6313] path_mount+0x5b4/0x1000 [ 230.516215][ T6313] __arm64_sys_mount+0x514/0x5e4 [ 230.517020][ T6313] invoke_syscall+0x98/0x2b8 [ 230.517716][ T6313] el0_svc_common+0x138/0x258 [ 230.518474][ T6313] do_el0_svc+0x58/0x14c [ 230.519107][ T6313] el0_svc+0x78/0x1e0 [ 230.519750][ T6313] el0t_64_sync_handler+0xcc/0xe4 [ 230.520479][ T6313] el0t_64_sync+0x1a0/0x1a4 [ 230.523368][ T6313] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.525404][ T6313] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.659886][ T6315] loop1: detected capacity change from 0 to 32768 [ 230.765329][ T6315] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.766596][ T6315] CPU: 1 PID: 6315 Comm: syz.1.662 Not tainted syzkaller #0 [ 230.767694][ T6315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 230.769269][ T6315] Call trace: [ 230.769746][ T6315] dump_backtrace+0x0/0x43c [ 230.770429][ T6315] show_stack+0x2c/0x3c [ 230.771029][ T6315] __dump_stack+0x30/0x40 [ 230.771768][ T6315] dump_stack_lvl+0xf8/0x160 [ 230.772436][ T6315] dump_stack+0x1c/0x5c [ 230.773100][ T6315] sysfs_create_dir_ns+0x22c/0x24c [ 230.773843][ T6315] kobject_add_internal+0x590/0xc54 [ 230.774640][ T6315] kobject_init_and_add+0x118/0x17c [ 230.775411][ T6315] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.776139][ T6315] gfs2_fill_super+0xdac/0x19e0 [ 230.776831][ T6315] get_tree_bdev+0x358/0x544 [ 230.777517][ T6315] gfs2_get_tree+0x54/0x1b4 [ 230.778119][ T6315] vfs_get_tree+0x90/0x274 [ 230.778782][ T6315] do_new_mount+0x228/0x810 [ 230.779524][ T6315] path_mount+0x5b4/0x1000 [ 230.780189][ T6315] __arm64_sys_mount+0x514/0x5e4 [ 230.780989][ T6315] invoke_syscall+0x98/0x2b8 [ 230.781663][ T6315] el0_svc_common+0x138/0x258 [ 230.782336][ T6315] do_el0_svc+0x58/0x14c [ 230.782937][ T6315] el0_svc+0x78/0x1e0 [ 230.783510][ T6315] el0t_64_sync_handler+0xcc/0xe4 [ 230.784292][ T6315] el0t_64_sync+0x1a0/0x1a4 [ 230.785103][ T6315] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.786999][ T6315] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:50 executed programs: 648 [ 230.922992][ T6317] loop1: detected capacity change from 0 to 32768 [ 230.956810][ T6317] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.958088][ T6317] CPU: 1 PID: 6317 Comm: syz.1.663 Not tainted syzkaller #0 [ 230.959181][ T6317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 230.960685][ T6317] Call trace: [ 230.961225][ T6317] dump_backtrace+0x0/0x43c [ 230.961901][ T6317] show_stack+0x2c/0x3c [ 230.962536][ T6317] __dump_stack+0x30/0x40 [ 230.963141][ T6317] dump_stack_lvl+0xf8/0x160 [ 230.963852][ T6317] dump_stack+0x1c/0x5c [ 230.964489][ T6317] sysfs_create_dir_ns+0x22c/0x24c [ 230.965256][ T6317] kobject_add_internal+0x590/0xc54 [ 230.966064][ T6317] kobject_init_and_add+0x118/0x17c [ 230.966855][ T6317] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.967571][ T6317] gfs2_fill_super+0xdac/0x19e0 [ 230.968347][ T6317] get_tree_bdev+0x358/0x544 [ 230.969023][ T6317] gfs2_get_tree+0x54/0x1b4 [ 230.969663][ T6317] vfs_get_tree+0x90/0x274 [ 230.970320][ T6317] do_new_mount+0x228/0x810 [ 230.971010][ T6317] path_mount+0x5b4/0x1000 [ 230.971648][ T6317] __arm64_sys_mount+0x514/0x5e4 [ 230.972408][ T6317] invoke_syscall+0x98/0x2b8 [ 230.973088][ T6317] el0_svc_common+0x138/0x258 [ 230.973809][ T6317] do_el0_svc+0x58/0x14c [ 230.974475][ T6317] el0_svc+0x78/0x1e0 [ 230.975080][ T6317] el0t_64_sync_handler+0xcc/0xe4 [ 230.975857][ T6317] el0t_64_sync+0x1a0/0x1a4 [ 230.976733][ T6317] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.978645][ T6317] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.162081][ T6319] loop1: detected capacity change from 0 to 32768 [ 231.210899][ T6319] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.212148][ T6319] CPU: 0 PID: 6319 Comm: syz.1.664 Not tainted syzkaller #0 [ 231.213200][ T6319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 231.214546][ T6319] Call trace: [ 231.214987][ T6319] dump_backtrace+0x0/0x43c [ 231.215642][ T6319] show_stack+0x2c/0x3c [ 231.216312][ T6319] __dump_stack+0x30/0x40 [ 231.217017][ T6319] dump_stack_lvl+0xf8/0x160 [ 231.217714][ T6319] dump_stack+0x1c/0x5c [ 231.218308][ T6319] sysfs_create_dir_ns+0x22c/0x24c [ 231.219081][ T6319] kobject_add_internal+0x590/0xc54 [ 231.219864][ T6319] kobject_init_and_add+0x118/0x17c [ 231.220680][ T6319] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.221426][ T6319] gfs2_fill_super+0xdac/0x19e0 [ 231.222172][ T6319] get_tree_bdev+0x358/0x544 [ 231.222875][ T6319] gfs2_get_tree+0x54/0x1b4 [ 231.223601][ T6319] vfs_get_tree+0x90/0x274 [ 231.224280][ T6319] do_new_mount+0x228/0x810 [ 231.225010][ T6319] path_mount+0x5b4/0x1000 [ 231.225627][ T6319] __arm64_sys_mount+0x514/0x5e4 [ 231.226306][ T6319] invoke_syscall+0x98/0x2b8 [ 231.227037][ T6319] el0_svc_common+0x138/0x258 [ 231.227745][ T6319] do_el0_svc+0x58/0x14c [ 231.228359][ T6319] el0_svc+0x78/0x1e0 [ 231.229017][ T6319] el0t_64_sync_handler+0xcc/0xe4 [ 231.229719][ T6319] el0t_64_sync+0x1a0/0x1a4 [ 231.232440][ T6319] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.234389][ T6319] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.366072][ T6321] loop1: detected capacity change from 0 to 32768 [ 231.410421][ T6321] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.411642][ T6321] CPU: 0 PID: 6321 Comm: syz.1.665 Not tainted syzkaller #0 [ 231.412830][ T6321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 231.414375][ T6321] Call trace: [ 231.414848][ T6321] dump_backtrace+0x0/0x43c [ 231.415489][ T6321] show_stack+0x2c/0x3c [ 231.416125][ T6321] __dump_stack+0x30/0x40 [ 231.416803][ T6321] dump_stack_lvl+0xf8/0x160 [ 231.417422][ T6321] dump_stack+0x1c/0x5c [ 231.418047][ T6321] sysfs_create_dir_ns+0x22c/0x24c [ 231.418813][ T6321] kobject_add_internal+0x590/0xc54 [ 231.419628][ T6321] kobject_init_and_add+0x118/0x17c [ 231.420359][ T6321] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.421032][ T6321] gfs2_fill_super+0xdac/0x19e0 [ 231.421715][ T6321] get_tree_bdev+0x358/0x544 [ 231.422469][ T6321] gfs2_get_tree+0x54/0x1b4 [ 231.423132][ T6321] vfs_get_tree+0x90/0x274 [ 231.423836][ T6321] do_new_mount+0x228/0x810 [ 231.424507][ T6321] path_mount+0x5b4/0x1000 [ 231.425156][ T6321] __arm64_sys_mount+0x514/0x5e4 [ 231.425874][ T6321] invoke_syscall+0x98/0x2b8 [ 231.426569][ T6321] el0_svc_common+0x138/0x258 [ 231.427259][ T6321] do_el0_svc+0x58/0x14c [ 231.427986][ T6321] el0_svc+0x78/0x1e0 [ 231.428565][ T6321] el0t_64_sync_handler+0xcc/0xe4 [ 231.429341][ T6321] el0t_64_sync+0x1a0/0x1a4 [ 231.431354][ T6321] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.433479][ T6321] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.627228][ T6323] loop1: detected capacity change from 0 to 32768 [ 231.721022][ T6323] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.722261][ T6323] CPU: 0 PID: 6323 Comm: syz.1.666 Not tainted syzkaller #0 [ 231.723352][ T6323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 231.724840][ T6323] Call trace: [ 231.725329][ T6323] dump_backtrace+0x0/0x43c [ 231.726012][ T6323] show_stack+0x2c/0x3c [ 231.726643][ T6323] __dump_stack+0x30/0x40 [ 231.727221][ T6323] dump_stack_lvl+0xf8/0x160 [ 231.727901][ T6323] dump_stack+0x1c/0x5c [ 231.728531][ T6323] sysfs_create_dir_ns+0x22c/0x24c [ 231.729344][ T6323] kobject_add_internal+0x590/0xc54 [ 231.730102][ T6323] kobject_init_and_add+0x118/0x17c [ 231.730863][ T6323] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.731550][ T6323] gfs2_fill_super+0xdac/0x19e0 [ 231.732207][ T6323] get_tree_bdev+0x358/0x544 [ 231.732893][ T6323] gfs2_get_tree+0x54/0x1b4 [ 231.733508][ T6323] vfs_get_tree+0x90/0x274 [ 231.734199][ T6323] do_new_mount+0x228/0x810 [ 231.734930][ T6323] path_mount+0x5b4/0x1000 [ 231.735530][ T6323] __arm64_sys_mount+0x514/0x5e4 [ 231.736280][ T6323] invoke_syscall+0x98/0x2b8 [ 231.737018][ T6323] el0_svc_common+0x138/0x258 [ 231.737731][ T6323] do_el0_svc+0x58/0x14c [ 231.738395][ T6323] el0_svc+0x78/0x1e0 [ 231.739062][ T6323] el0t_64_sync_handler+0xcc/0xe4 [ 231.739864][ T6323] el0t_64_sync+0x1a0/0x1a4 [ 231.741292][ T6323] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.743317][ T6323] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.885031][ T6325] loop1: detected capacity change from 0 to 32768 [ 231.893164][ T6325] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.894285][ T6325] CPU: 0 PID: 6325 Comm: syz.1.667 Not tainted syzkaller #0 [ 231.895316][ T6325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 231.896717][ T6325] Call trace: [ 231.897223][ T6325] dump_backtrace+0x0/0x43c [ 231.897890][ T6325] show_stack+0x2c/0x3c [ 231.898487][ T6325] __dump_stack+0x30/0x40 [ 231.899108][ T6325] dump_stack_lvl+0xf8/0x160 [ 231.899790][ T6325] dump_stack+0x1c/0x5c [ 231.900380][ T6325] sysfs_create_dir_ns+0x22c/0x24c [ 231.901092][ T6325] kobject_add_internal+0x590/0xc54 [ 231.901851][ T6325] kobject_init_and_add+0x118/0x17c [ 231.902685][ T6325] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.903380][ T6325] gfs2_fill_super+0xdac/0x19e0 [ 231.904057][ T6325] get_tree_bdev+0x358/0x544 [ 231.904685][ T6325] gfs2_get_tree+0x54/0x1b4 [ 231.905351][ T6325] vfs_get_tree+0x90/0x274 [ 231.905948][ T6325] do_new_mount+0x228/0x810 [ 231.906583][ T6325] path_mount+0x5b4/0x1000 [ 231.907209][ T6325] __arm64_sys_mount+0x514/0x5e4 [ 231.907900][ T6325] invoke_syscall+0x98/0x2b8 [ 231.908540][ T6325] el0_svc_common+0x138/0x258 [ 231.909183][ T6325] do_el0_svc+0x58/0x14c [ 231.909774][ T6325] el0_svc+0x78/0x1e0 [ 231.910349][ T6325] el0t_64_sync_handler+0xcc/0xe4 [ 231.911056][ T6325] el0t_64_sync+0x1a0/0x1a4 [ 231.913286][ T6325] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.915056][ T6325] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.052069][ T6327] loop1: detected capacity change from 0 to 32768 [ 232.104338][ T6327] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.106858][ T6327] CPU: 0 PID: 6327 Comm: syz.1.668 Not tainted syzkaller #0 [ 232.107995][ T6327] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 232.109495][ T6327] Call trace: [ 232.109964][ T6327] dump_backtrace+0x0/0x43c [ 232.110635][ T6327] show_stack+0x2c/0x3c [ 232.111295][ T6327] __dump_stack+0x30/0x40 [ 232.111904][ T6327] dump_stack_lvl+0xf8/0x160 [ 232.112560][ T6327] dump_stack+0x1c/0x5c [ 232.113223][ T6327] sysfs_create_dir_ns+0x22c/0x24c [ 232.113975][ T6327] kobject_add_internal+0x590/0xc54 [ 232.114706][ T6327] kobject_init_and_add+0x118/0x17c [ 232.115463][ T6327] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.116296][ T6327] gfs2_fill_super+0xdac/0x19e0 [ 232.117061][ T6327] get_tree_bdev+0x358/0x544 [ 232.117828][ T6327] gfs2_get_tree+0x54/0x1b4 [ 232.118497][ T6327] vfs_get_tree+0x90/0x274 [ 232.119206][ T6327] do_new_mount+0x228/0x810 [ 232.119847][ T6327] path_mount+0x5b4/0x1000 [ 232.120478][ T6327] __arm64_sys_mount+0x514/0x5e4 [ 232.121229][ T6327] invoke_syscall+0x98/0x2b8 [ 232.121914][ T6327] el0_svc_common+0x138/0x258 [ 232.122632][ T6327] do_el0_svc+0x58/0x14c [ 232.123253][ T6327] el0_svc+0x78/0x1e0 [ 232.123841][ T6327] el0t_64_sync_handler+0xcc/0xe4 [ 232.124668][ T6327] el0t_64_sync+0x1a0/0x1a4 [ 232.126973][ T6327] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.128936][ T6327] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.319691][ T6329] loop1: detected capacity change from 0 to 32768 [ 232.365436][ T6329] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.366695][ T6329] CPU: 1 PID: 6329 Comm: syz.1.669 Not tainted syzkaller #0 [ 232.367791][ T6329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 232.369371][ T6329] Call trace: [ 232.369870][ T6329] dump_backtrace+0x0/0x43c [ 232.370534][ T6329] show_stack+0x2c/0x3c [ 232.371165][ T6329] __dump_stack+0x30/0x40 [ 232.371841][ T6329] dump_stack_lvl+0xf8/0x160 [ 232.372553][ T6329] dump_stack+0x1c/0x5c [ 232.373205][ T6329] sysfs_create_dir_ns+0x22c/0x24c [ 232.373993][ T6329] kobject_add_internal+0x590/0xc54 [ 232.374816][ T6329] kobject_init_and_add+0x118/0x17c [ 232.375593][ T6329] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.376319][ T6329] gfs2_fill_super+0xdac/0x19e0 [ 232.377061][ T6329] get_tree_bdev+0x358/0x544 [ 232.377771][ T6329] gfs2_get_tree+0x54/0x1b4 [ 232.378450][ T6329] vfs_get_tree+0x90/0x274 [ 232.379234][ T6329] do_new_mount+0x228/0x810 [ 232.379954][ T6329] path_mount+0x5b4/0x1000 [ 232.380580][ T6329] __arm64_sys_mount+0x514/0x5e4 [ 232.381369][ T6329] invoke_syscall+0x98/0x2b8 [ 232.382033][ T6329] el0_svc_common+0x138/0x258 [ 232.382733][ T6329] do_el0_svc+0x58/0x14c [ 232.383321][ T6329] el0_svc+0x78/0x1e0 [ 232.383954][ T6329] el0t_64_sync_handler+0xcc/0xe4 [ 232.384784][ T6329] el0t_64_sync+0x1a0/0x1a4 [ 232.385819][ T6329] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.387843][ T6329] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.542047][ T6331] loop1: detected capacity change from 0 to 32768 [ 232.620989][ T6331] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.622159][ T6331] CPU: 1 PID: 6331 Comm: syz.1.670 Not tainted syzkaller #0 [ 232.623326][ T6331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 232.624794][ T6331] Call trace: [ 232.625264][ T6331] dump_backtrace+0x0/0x43c [ 232.625952][ T6331] show_stack+0x2c/0x3c [ 232.626599][ T6331] __dump_stack+0x30/0x40 [ 232.627253][ T6331] dump_stack_lvl+0xf8/0x160 [ 232.627997][ T6331] dump_stack+0x1c/0x5c [ 232.628631][ T6331] sysfs_create_dir_ns+0x22c/0x24c [ 232.629322][ T6331] kobject_add_internal+0x590/0xc54 [ 232.630088][ T6331] kobject_init_and_add+0x118/0x17c [ 232.630829][ T6331] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.631606][ T6331] gfs2_fill_super+0xdac/0x19e0 [ 232.632352][ T6331] get_tree_bdev+0x358/0x544 [ 232.633037][ T6331] gfs2_get_tree+0x54/0x1b4 [ 232.633695][ T6331] vfs_get_tree+0x90/0x274 [ 232.634400][ T6331] do_new_mount+0x228/0x810 [ 232.635025][ T6331] path_mount+0x5b4/0x1000 [ 232.635706][ T6331] __arm64_sys_mount+0x514/0x5e4 [ 232.636402][ T6331] invoke_syscall+0x98/0x2b8 [ 232.637108][ T6331] el0_svc_common+0x138/0x258 [ 232.637846][ T6331] do_el0_svc+0x58/0x14c [ 232.638463][ T6331] el0_svc+0x78/0x1e0 [ 232.639036][ T6331] el0t_64_sync_handler+0xcc/0xe4 [ 232.639780][ T6331] el0t_64_sync+0x1a0/0x1a4 [ 232.640720][ T6331] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.642635][ T6331] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.780890][ T6333] loop1: detected capacity change from 0 to 32768 [ 232.788992][ T6333] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.790161][ T6333] CPU: 0 PID: 6333 Comm: syz.1.671 Not tainted syzkaller #0 [ 232.791220][ T6333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 232.792673][ T6333] Call trace: [ 232.793156][ T6333] dump_backtrace+0x0/0x43c [ 232.793848][ T6333] show_stack+0x2c/0x3c [ 232.794468][ T6333] __dump_stack+0x30/0x40 [ 232.795117][ T6333] dump_stack_lvl+0xf8/0x160 [ 232.795769][ T6333] dump_stack+0x1c/0x5c [ 232.796383][ T6333] sysfs_create_dir_ns+0x22c/0x24c [ 232.797195][ T6333] kobject_add_internal+0x590/0xc54 [ 232.798002][ T6333] kobject_init_and_add+0x118/0x17c [ 232.798848][ T6333] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.799615][ T6333] gfs2_fill_super+0xdac/0x19e0 [ 232.800291][ T6333] get_tree_bdev+0x358/0x544 [ 232.800978][ T6333] gfs2_get_tree+0x54/0x1b4 [ 232.801654][ T6333] vfs_get_tree+0x90/0x274 [ 232.802340][ T6333] do_new_mount+0x228/0x810 [ 232.802995][ T6333] path_mount+0x5b4/0x1000 [ 232.803660][ T6333] __arm64_sys_mount+0x514/0x5e4 [ 232.804384][ T6333] invoke_syscall+0x98/0x2b8 [ 232.805099][ T6333] el0_svc_common+0x138/0x258 [ 232.805794][ T6333] do_el0_svc+0x58/0x14c [ 232.806467][ T6333] el0_svc+0x78/0x1e0 [ 232.807083][ T6333] el0t_64_sync_handler+0xcc/0xe4 [ 232.807828][ T6333] el0t_64_sync+0x1a0/0x1a4 [ 232.810145][ T6333] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.812151][ T6333] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.958241][ T6335] loop1: detected capacity change from 0 to 32768 [ 232.996860][ T6335] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.998095][ T6335] CPU: 0 PID: 6335 Comm: syz.1.672 Not tainted syzkaller #0 [ 232.999154][ T6335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 233.000689][ T6335] Call trace: [ 233.001099][ T6335] dump_backtrace+0x0/0x43c [ 233.001785][ T6335] show_stack+0x2c/0x3c [ 233.002427][ T6335] __dump_stack+0x30/0x40 [ 233.003059][ T6335] dump_stack_lvl+0xf8/0x160 [ 233.003823][ T6335] dump_stack+0x1c/0x5c [ 233.004454][ T6335] sysfs_create_dir_ns+0x22c/0x24c [ 233.005219][ T6335] kobject_add_internal+0x590/0xc54 [ 233.006020][ T6335] kobject_init_and_add+0x118/0x17c [ 233.006829][ T6335] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.007480][ T6335] gfs2_fill_super+0xdac/0x19e0 [ 233.008228][ T6335] get_tree_bdev+0x358/0x544 [ 233.008935][ T6335] gfs2_get_tree+0x54/0x1b4 [ 233.009679][ T6335] vfs_get_tree+0x90/0x274 [ 233.010352][ T6335] do_new_mount+0x228/0x810 [ 233.011082][ T6335] path_mount+0x5b4/0x1000 [ 233.011707][ T6335] __arm64_sys_mount+0x514/0x5e4 [ 233.012473][ T6335] invoke_syscall+0x98/0x2b8 [ 233.013168][ T6335] el0_svc_common+0x138/0x258 [ 233.013886][ T6335] do_el0_svc+0x58/0x14c [ 233.014554][ T6335] el0_svc+0x78/0x1e0 [ 233.015179][ T6335] el0t_64_sync_handler+0xcc/0xe4 [ 233.015989][ T6335] el0t_64_sync+0x1a0/0x1a4 [ 233.018000][ T6335] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.020039][ T6335] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.152841][ T6337] loop1: detected capacity change from 0 to 32768 [ 233.209308][ T6337] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.210521][ T6337] CPU: 0 PID: 6337 Comm: syz.1.673 Not tainted syzkaller #0 [ 233.211683][ T6337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 233.213309][ T6337] Call trace: [ 233.213830][ T6337] dump_backtrace+0x0/0x43c [ 233.214483][ T6337] show_stack+0x2c/0x3c [ 233.215068][ T6337] __dump_stack+0x30/0x40 [ 233.215779][ T6337] dump_stack_lvl+0xf8/0x160 [ 233.216476][ T6337] dump_stack+0x1c/0x5c [ 233.217094][ T6337] sysfs_create_dir_ns+0x22c/0x24c [ 233.217928][ T6337] kobject_add_internal+0x590/0xc54 [ 233.218690][ T6337] kobject_init_and_add+0x118/0x17c [ 233.219476][ T6337] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.220148][ T6337] gfs2_fill_super+0xdac/0x19e0 [ 233.220811][ T6337] get_tree_bdev+0x358/0x544 [ 233.221499][ T6337] gfs2_get_tree+0x54/0x1b4 [ 233.222214][ T6337] vfs_get_tree+0x90/0x274 [ 233.222875][ T6337] do_new_mount+0x228/0x810 [ 233.223517][ T6337] path_mount+0x5b4/0x1000 [ 233.224281][ T6337] __arm64_sys_mount+0x514/0x5e4 [ 233.225033][ T6337] invoke_syscall+0x98/0x2b8 [ 233.225708][ T6337] el0_svc_common+0x138/0x258 [ 233.226419][ T6337] do_el0_svc+0x58/0x14c [ 233.227076][ T6337] el0_svc+0x78/0x1e0 [ 233.227632][ T6337] el0t_64_sync_handler+0xcc/0xe4 [ 233.228362][ T6337] el0t_64_sync+0x1a0/0x1a4 [ 233.229321][ T6337] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.231189][ T6337] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.362359][ T6339] loop1: detected capacity change from 0 to 32768 [ 233.410229][ T6339] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.411475][ T6339] CPU: 1 PID: 6339 Comm: syz.1.674 Not tainted syzkaller #0 [ 233.412593][ T6339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 233.414125][ T6339] Call trace: [ 233.414631][ T6339] dump_backtrace+0x0/0x43c [ 233.415293][ T6339] show_stack+0x2c/0x3c [ 233.415958][ T6339] __dump_stack+0x30/0x40 [ 233.416646][ T6339] dump_stack_lvl+0xf8/0x160 [ 233.417382][ T6339] dump_stack+0x1c/0x5c [ 233.418038][ T6339] sysfs_create_dir_ns+0x22c/0x24c [ 233.418760][ T6339] kobject_add_internal+0x590/0xc54 [ 233.419626][ T6339] kobject_init_and_add+0x118/0x17c [ 233.420387][ T6339] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.421130][ T6339] gfs2_fill_super+0xdac/0x19e0 [ 233.421842][ T6339] get_tree_bdev+0x358/0x544 [ 233.422561][ T6339] gfs2_get_tree+0x54/0x1b4 [ 233.423341][ T6339] vfs_get_tree+0x90/0x274 [ 233.424011][ T6339] do_new_mount+0x228/0x810 [ 233.424743][ T6339] path_mount+0x5b4/0x1000 [ 233.425386][ T6339] __arm64_sys_mount+0x514/0x5e4 [ 233.426138][ T6339] invoke_syscall+0x98/0x2b8 [ 233.426850][ T6339] el0_svc_common+0x138/0x258 [ 233.427581][ T6339] do_el0_svc+0x58/0x14c [ 233.428230][ T6339] el0_svc+0x78/0x1e0 [ 233.428817][ T6339] el0t_64_sync_handler+0xcc/0xe4 [ 233.429546][ T6339] el0t_64_sync+0x1a0/0x1a4 [ 233.430409][ T6339] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.432426][ T6339] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.578559][ T6341] loop1: detected capacity change from 0 to 32768 [ 233.660792][ T6341] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.662023][ T6341] CPU: 0 PID: 6341 Comm: syz.1.675 Not tainted syzkaller #0 [ 233.663051][ T6341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 233.664437][ T6341] Call trace: [ 233.664933][ T6341] dump_backtrace+0x0/0x43c [ 233.665528][ T6341] show_stack+0x2c/0x3c [ 233.666170][ T6341] __dump_stack+0x30/0x40 [ 233.666841][ T6341] dump_stack_lvl+0xf8/0x160 [ 233.667503][ T6341] dump_stack+0x1c/0x5c [ 233.668190][ T6341] sysfs_create_dir_ns+0x22c/0x24c [ 233.669015][ T6341] kobject_add_internal+0x590/0xc54 [ 233.669777][ T6341] kobject_init_and_add+0x118/0x17c [ 233.670613][ T6341] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.671398][ T6341] gfs2_fill_super+0xdac/0x19e0 [ 233.672151][ T6341] get_tree_bdev+0x358/0x544 [ 233.672883][ T6341] gfs2_get_tree+0x54/0x1b4 [ 233.673484][ T6341] vfs_get_tree+0x90/0x274 [ 233.674156][ T6341] do_new_mount+0x228/0x810 [ 233.674855][ T6341] path_mount+0x5b4/0x1000 [ 233.675495][ T6341] __arm64_sys_mount+0x514/0x5e4 [ 233.676196][ T6341] invoke_syscall+0x98/0x2b8 [ 233.676883][ T6341] el0_svc_common+0x138/0x258 [ 233.677582][ T6341] do_el0_svc+0x58/0x14c [ 233.678262][ T6341] el0_svc+0x78/0x1e0 [ 233.678827][ T6341] el0t_64_sync_handler+0xcc/0xe4 [ 233.679489][ T6341] el0t_64_sync+0x1a0/0x1a4 [ 233.681453][ T6341] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.683365][ T6341] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.820871][ T6343] loop1: detected capacity change from 0 to 32768 [ 233.900973][ T6343] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.902201][ T6343] CPU: 0 PID: 6343 Comm: syz.1.676 Not tainted syzkaller #0 [ 233.903344][ T6343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 233.904903][ T6343] Call trace: [ 233.905322][ T6343] dump_backtrace+0x0/0x43c [ 233.905971][ T6343] show_stack+0x2c/0x3c [ 233.906640][ T6343] __dump_stack+0x30/0x40 [ 233.907289][ T6343] dump_stack_lvl+0xf8/0x160 [ 233.908016][ T6343] dump_stack+0x1c/0x5c [ 233.908622][ T6343] sysfs_create_dir_ns+0x22c/0x24c [ 233.909396][ T6343] kobject_add_internal+0x590/0xc54 [ 233.910220][ T6343] kobject_init_and_add+0x118/0x17c [ 233.910962][ T6343] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.911634][ T6343] gfs2_fill_super+0xdac/0x19e0 [ 233.912386][ T6343] get_tree_bdev+0x358/0x544 [ 233.913082][ T6343] gfs2_get_tree+0x54/0x1b4 [ 233.913785][ T6343] vfs_get_tree+0x90/0x274 [ 233.914483][ T6343] do_new_mount+0x228/0x810 [ 233.915078][ T6343] path_mount+0x5b4/0x1000 [ 233.915717][ T6343] __arm64_sys_mount+0x514/0x5e4 [ 233.916410][ T6343] invoke_syscall+0x98/0x2b8 [ 233.917168][ T6343] el0_svc_common+0x138/0x258 [ 233.917930][ T6343] do_el0_svc+0x58/0x14c [ 233.918614][ T6343] el0_svc+0x78/0x1e0 [ 233.919197][ T6343] el0t_64_sync_handler+0xcc/0xe4 [ 233.919960][ T6343] el0t_64_sync+0x1a0/0x1a4 [ 233.921264][ T6343] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.923163][ T6343] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.063408][ T6345] loop1: detected capacity change from 0 to 32768 [ 234.073449][ T6345] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.074783][ T6345] CPU: 0 PID: 6345 Comm: syz.1.677 Not tainted syzkaller #0 [ 234.075864][ T6345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 234.077400][ T6345] Call trace: [ 234.077837][ T6345] dump_backtrace+0x0/0x43c [ 234.078549][ T6345] show_stack+0x2c/0x3c [ 234.079217][ T6345] __dump_stack+0x30/0x40 [ 234.079902][ T6345] dump_stack_lvl+0xf8/0x160 [ 234.080600][ T6345] dump_stack+0x1c/0x5c [ 234.081243][ T6345] sysfs_create_dir_ns+0x22c/0x24c [ 234.082006][ T6345] kobject_add_internal+0x590/0xc54 [ 234.082770][ T6345] kobject_init_and_add+0x118/0x17c [ 234.083582][ T6345] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.084338][ T6345] gfs2_fill_super+0xdac/0x19e0 [ 234.085046][ T6345] get_tree_bdev+0x358/0x544 [ 234.085748][ T6345] gfs2_get_tree+0x54/0x1b4 [ 234.086473][ T6345] vfs_get_tree+0x90/0x274 [ 234.087102][ T6345] do_new_mount+0x228/0x810 [ 234.087780][ T6345] path_mount+0x5b4/0x1000 [ 234.088435][ T6345] __arm64_sys_mount+0x514/0x5e4 [ 234.089271][ T6345] invoke_syscall+0x98/0x2b8 [ 234.089869][ T6345] el0_svc_common+0x138/0x258 [ 234.090591][ T6345] do_el0_svc+0x58/0x14c [ 234.091232][ T6345] el0_svc+0x78/0x1e0 [ 234.091930][ T6345] el0t_64_sync_handler+0xcc/0xe4 [ 234.092751][ T6345] el0t_64_sync+0x1a0/0x1a4 [ 234.095781][ T6345] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.097781][ T6345] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.293816][ T6347] loop1: detected capacity change from 0 to 32768 [ 234.326627][ T6347] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.327861][ T6347] CPU: 1 PID: 6347 Comm: syz.1.678 Not tainted syzkaller #0 [ 234.328941][ T6347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 234.330392][ T6347] Call trace: [ 234.330915][ T6347] dump_backtrace+0x0/0x43c [ 234.331723][ T6347] show_stack+0x2c/0x3c [ 234.332404][ T6347] __dump_stack+0x30/0x40 [ 234.333141][ T6347] dump_stack_lvl+0xf8/0x160 [ 234.333811][ T6347] dump_stack+0x1c/0x5c [ 234.334429][ T6347] sysfs_create_dir_ns+0x22c/0x24c [ 234.335263][ T6347] kobject_add_internal+0x590/0xc54 [ 234.336084][ T6347] kobject_init_and_add+0x118/0x17c [ 234.336903][ T6347] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.337603][ T6347] gfs2_fill_super+0xdac/0x19e0 [ 234.338300][ T6347] get_tree_bdev+0x358/0x544 [ 234.339003][ T6347] gfs2_get_tree+0x54/0x1b4 [ 234.339718][ T6347] vfs_get_tree+0x90/0x274 [ 234.340392][ T6347] do_new_mount+0x228/0x810 [ 234.341112][ T6347] path_mount+0x5b4/0x1000 [ 234.341795][ T6347] __arm64_sys_mount+0x514/0x5e4 [ 234.342564][ T6347] invoke_syscall+0x98/0x2b8 [ 234.343237][ T6347] el0_svc_common+0x138/0x258 [ 234.343993][ T6347] do_el0_svc+0x58/0x14c [ 234.344633][ T6347] el0_svc+0x78/0x1e0 [ 234.345251][ T6347] el0t_64_sync_handler+0xcc/0xe4 [ 234.346009][ T6347] el0t_64_sync+0x1a0/0x1a4 [ 234.350941][ T6347] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.353017][ T6347] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.489745][ T6349] loop1: detected capacity change from 0 to 32768 [ 234.497117][ T6349] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.498333][ T6349] CPU: 1 PID: 6349 Comm: syz.1.679 Not tainted syzkaller #0 [ 234.499503][ T6349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 234.500958][ T6349] Call trace: [ 234.501448][ T6349] dump_backtrace+0x0/0x43c [ 234.502154][ T6349] show_stack+0x2c/0x3c [ 234.502795][ T6349] __dump_stack+0x30/0x40 [ 234.503508][ T6349] dump_stack_lvl+0xf8/0x160 [ 234.504252][ T6349] dump_stack+0x1c/0x5c [ 234.504937][ T6349] sysfs_create_dir_ns+0x22c/0x24c [ 234.505756][ T6349] kobject_add_internal+0x590/0xc54 [ 234.506608][ T6349] kobject_init_and_add+0x118/0x17c [ 234.507444][ T6349] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.508184][ T6349] gfs2_fill_super+0xdac/0x19e0 [ 234.508965][ T6349] get_tree_bdev+0x358/0x544 [ 234.509654][ T6349] gfs2_get_tree+0x54/0x1b4 [ 234.510366][ T6349] vfs_get_tree+0x90/0x274 [ 234.511056][ T6349] do_new_mount+0x228/0x810 [ 234.511698][ T6349] path_mount+0x5b4/0x1000 [ 234.512350][ T6349] __arm64_sys_mount+0x514/0x5e4 [ 234.513036][ T6349] invoke_syscall+0x98/0x2b8 [ 234.513746][ T6349] el0_svc_common+0x138/0x258 [ 234.514414][ T6349] do_el0_svc+0x58/0x14c [ 234.515023][ T6349] el0_svc+0x78/0x1e0 [ 234.515602][ T6349] el0t_64_sync_handler+0xcc/0xe4 [ 234.516379][ T6349] el0t_64_sync+0x1a0/0x1a4 [ 234.517298][ T6349] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.519230][ T6349] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.661486][ T6351] loop1: detected capacity change from 0 to 32768 [ 234.701422][ T6351] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.702710][ T6351] CPU: 0 PID: 6351 Comm: syz.1.680 Not tainted syzkaller #0 [ 234.703854][ T6351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 234.705449][ T6351] Call trace: [ 234.706005][ T6351] dump_backtrace+0x0/0x43c [ 234.706724][ T6351] show_stack+0x2c/0x3c [ 234.707366][ T6351] __dump_stack+0x30/0x40 [ 234.708040][ T6351] dump_stack_lvl+0xf8/0x160 [ 234.708718][ T6351] dump_stack+0x1c/0x5c [ 234.709371][ T6351] sysfs_create_dir_ns+0x22c/0x24c [ 234.710217][ T6351] kobject_add_internal+0x590/0xc54 [ 234.711043][ T6351] kobject_init_and_add+0x118/0x17c [ 234.711845][ T6351] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.712573][ T6351] gfs2_fill_super+0xdac/0x19e0 [ 234.713371][ T6351] get_tree_bdev+0x358/0x544 [ 234.714074][ T6351] gfs2_get_tree+0x54/0x1b4 [ 234.714753][ T6351] vfs_get_tree+0x90/0x274 [ 234.715392][ T6351] do_new_mount+0x228/0x810 [ 234.716091][ T6351] path_mount+0x5b4/0x1000 [ 234.716745][ T6351] __arm64_sys_mount+0x514/0x5e4 [ 234.717511][ T6351] invoke_syscall+0x98/0x2b8 [ 234.718222][ T6351] el0_svc_common+0x138/0x258 [ 234.718885][ T6351] do_el0_svc+0x58/0x14c [ 234.719558][ T6351] el0_svc+0x78/0x1e0 [ 234.720231][ T6351] el0t_64_sync_handler+0xcc/0xe4 [ 234.721006][ T6351] el0t_64_sync+0x1a0/0x1a4 [ 234.723287][ T6351] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.725867][ T6351] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.859062][ T6353] loop1: detected capacity change from 0 to 32768 [ 234.916688][ T6353] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.917870][ T6353] CPU: 0 PID: 6353 Comm: syz.1.681 Not tainted syzkaller #0 [ 234.918940][ T6353] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 234.920420][ T6353] Call trace: [ 234.920941][ T6353] dump_backtrace+0x0/0x43c [ 234.921623][ T6353] show_stack+0x2c/0x3c [ 234.922267][ T6353] __dump_stack+0x30/0x40 [ 234.922965][ T6353] dump_stack_lvl+0xf8/0x160 [ 234.923668][ T6353] dump_stack+0x1c/0x5c [ 234.924335][ T6353] sysfs_create_dir_ns+0x22c/0x24c [ 234.925105][ T6353] kobject_add_internal+0x590/0xc54 [ 234.925856][ T6353] kobject_init_and_add+0x118/0x17c [ 234.926565][ T6353] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.927230][ T6353] gfs2_fill_super+0xdac/0x19e0 [ 234.927981][ T6353] get_tree_bdev+0x358/0x544 [ 234.928715][ T6353] gfs2_get_tree+0x54/0x1b4 [ 234.929359][ T6353] vfs_get_tree+0x90/0x274 [ 234.930056][ T6353] do_new_mount+0x228/0x810 [ 234.930787][ T6353] path_mount+0x5b4/0x1000 [ 234.931464][ T6353] __arm64_sys_mount+0x514/0x5e4 [ 234.932102][ T6353] invoke_syscall+0x98/0x2b8 [ 234.932813][ T6353] el0_svc_common+0x138/0x258 [ 234.933491][ T6353] do_el0_svc+0x58/0x14c [ 234.934125][ T6353] el0_svc+0x78/0x1e0 [ 234.934701][ T6353] el0t_64_sync_handler+0xcc/0xe4 [ 234.935470][ T6353] el0t_64_sync+0x1a0/0x1a4 [ 234.936847][ T6353] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.938833][ T6353] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.096768][ T6355] loop1: detected capacity change from 0 to 32768 [ 235.136726][ T6355] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.138344][ T6355] CPU: 1 PID: 6355 Comm: syz.1.682 Not tainted syzkaller #0 [ 235.139563][ T6355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 235.141145][ T6355] Call trace: [ 235.141623][ T6355] dump_backtrace+0x0/0x43c [ 235.142285][ T6355] show_stack+0x2c/0x3c [ 235.142986][ T6355] __dump_stack+0x30/0x40 [ 235.143629][ T6355] dump_stack_lvl+0xf8/0x160 [ 235.144286][ T6355] dump_stack+0x1c/0x5c [ 235.144899][ T6355] sysfs_create_dir_ns+0x22c/0x24c [ 235.145703][ T6355] kobject_add_internal+0x590/0xc54 [ 235.146496][ T6355] kobject_init_and_add+0x118/0x17c [ 235.147266][ T6355] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.148012][ T6355] gfs2_fill_super+0xdac/0x19e0 [ 235.148714][ T6355] get_tree_bdev+0x358/0x544 [ 235.149425][ T6355] gfs2_get_tree+0x54/0x1b4 [ 235.150144][ T6355] vfs_get_tree+0x90/0x274 [ 235.150808][ T6355] do_new_mount+0x228/0x810 [ 235.151512][ T6355] path_mount+0x5b4/0x1000 [ 235.152145][ T6355] __arm64_sys_mount+0x514/0x5e4 [ 235.152838][ T6355] invoke_syscall+0x98/0x2b8 [ 235.153509][ T6355] el0_svc_common+0x138/0x258 [ 235.154219][ T6355] do_el0_svc+0x58/0x14c [ 235.154873][ T6355] el0_svc+0x78/0x1e0 [ 235.155478][ T6355] el0t_64_sync_handler+0xcc/0xe4 [ 235.156228][ T6355] el0t_64_sync+0x1a0/0x1a4 [ 235.157657][ T6355] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.159769][ T6355] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.298380][ T6357] loop1: detected capacity change from 0 to 32768 [ 235.336686][ T6357] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.337972][ T6357] CPU: 0 PID: 6357 Comm: syz.1.683 Not tainted syzkaller #0 [ 235.339085][ T6357] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 235.340678][ T6357] Call trace: [ 235.341251][ T6357] dump_backtrace+0x0/0x43c [ 235.341935][ T6357] show_stack+0x2c/0x3c [ 235.342610][ T6357] __dump_stack+0x30/0x40 [ 235.343267][ T6357] dump_stack_lvl+0xf8/0x160 [ 235.344014][ T6357] dump_stack+0x1c/0x5c [ 235.344679][ T6357] sysfs_create_dir_ns+0x22c/0x24c [ 235.345452][ T6357] kobject_add_internal+0x590/0xc54 [ 235.346277][ T6357] kobject_init_and_add+0x118/0x17c [ 235.347081][ T6357] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.347785][ T6357] gfs2_fill_super+0xdac/0x19e0 [ 235.348506][ T6357] get_tree_bdev+0x358/0x544 [ 235.349214][ T6357] gfs2_get_tree+0x54/0x1b4 [ 235.349909][ T6357] vfs_get_tree+0x90/0x274 [ 235.350589][ T6357] do_new_mount+0x228/0x810 [ 235.351289][ T6357] path_mount+0x5b4/0x1000 [ 235.351930][ T6357] __arm64_sys_mount+0x514/0x5e4 [ 235.352648][ T6357] invoke_syscall+0x98/0x2b8 [ 235.353302][ T6357] el0_svc_common+0x138/0x258 [ 235.353936][ T6357] do_el0_svc+0x58/0x14c [ 235.354564][ T6357] el0_svc+0x78/0x1e0 [ 235.355156][ T6357] el0t_64_sync_handler+0xcc/0xe4 [ 235.355935][ T6357] el0t_64_sync+0x1a0/0x1a4 [ 235.356792][ T6357] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.358901][ T6357] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.497562][ T6359] loop1: detected capacity change from 0 to 32768 [ 235.539975][ T6359] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.541245][ T6359] CPU: 0 PID: 6359 Comm: syz.1.684 Not tainted syzkaller #0 [ 235.542464][ T6359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 235.544091][ T6359] Call trace: [ 235.544630][ T6359] dump_backtrace+0x0/0x43c [ 235.545367][ T6359] show_stack+0x2c/0x3c [ 235.546006][ T6359] __dump_stack+0x30/0x40 [ 235.546683][ T6359] dump_stack_lvl+0xf8/0x160 [ 235.547408][ T6359] dump_stack+0x1c/0x5c [ 235.548046][ T6359] sysfs_create_dir_ns+0x22c/0x24c [ 235.548811][ T6359] kobject_add_internal+0x590/0xc54 [ 235.549575][ T6359] kobject_init_and_add+0x118/0x17c [ 235.550354][ T6359] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.551049][ T6359] gfs2_fill_super+0xdac/0x19e0 [ 235.551779][ T6359] get_tree_bdev+0x358/0x544 [ 235.552712][ T6359] gfs2_get_tree+0x54/0x1b4 [ 235.553396][ T6359] vfs_get_tree+0x90/0x274 [ 235.554058][ T6359] do_new_mount+0x228/0x810 [ 235.554843][ T6359] path_mount+0x5b4/0x1000 [ 235.555487][ T6359] __arm64_sys_mount+0x514/0x5e4 [ 235.556245][ T6359] invoke_syscall+0x98/0x2b8 [ 235.556906][ T6359] el0_svc_common+0x138/0x258 [ 235.557609][ T6359] do_el0_svc+0x58/0x14c [ 235.558245][ T6359] el0_svc+0x78/0x1e0 [ 235.558887][ T6359] el0t_64_sync_handler+0xcc/0xe4 [ 235.559621][ T6359] el0t_64_sync+0x1a0/0x1a4 [ 235.560501][ T6359] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.563631][ T6359] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.733213][ T6361] loop1: detected capacity change from 0 to 32768 [ 235.774781][ T6361] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.776066][ T6361] CPU: 0 PID: 6361 Comm: syz.1.685 Not tainted syzkaller #0 [ 235.777125][ T6361] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 235.778606][ T6361] Call trace: [ 235.779083][ T6361] dump_backtrace+0x0/0x43c [ 235.779767][ T6361] show_stack+0x2c/0x3c [ 235.780329][ T6361] __dump_stack+0x30/0x40 [ 235.780934][ T6361] dump_stack_lvl+0xf8/0x160 [ 235.781654][ T6361] dump_stack+0x1c/0x5c [ 235.782289][ T6361] sysfs_create_dir_ns+0x22c/0x24c [ 235.783013][ T6361] kobject_add_internal+0x590/0xc54 [ 235.783784][ T6361] kobject_init_and_add+0x118/0x17c [ 235.784498][ T6361] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.785234][ T6361] gfs2_fill_super+0xdac/0x19e0 [ 235.785955][ T6361] get_tree_bdev+0x358/0x544 [ 235.786698][ T6361] gfs2_get_tree+0x54/0x1b4 [ 235.787326][ T6361] vfs_get_tree+0x90/0x274 [ 235.787965][ T6361] do_new_mount+0x228/0x810 [ 235.788679][ T6361] path_mount+0x5b4/0x1000 [ 235.789326][ T6361] __arm64_sys_mount+0x514/0x5e4 [ 235.790001][ T6361] invoke_syscall+0x98/0x2b8 [ 235.790686][ T6361] el0_svc_common+0x138/0x258 [ 235.791398][ T6361] do_el0_svc+0x58/0x14c [ 235.792002][ T6361] el0_svc+0x78/0x1e0 [ 235.792613][ T6361] el0t_64_sync_handler+0xcc/0xe4 [ 235.793342][ T6361] el0t_64_sync+0x1a0/0x1a4 [ 235.795507][ T6361] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.797466][ T6361] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:55 executed programs: 671 [ 235.930118][ T6363] loop1: detected capacity change from 0 to 32768 [ 235.971648][ T6363] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.972864][ T6363] CPU: 0 PID: 6363 Comm: syz.1.686 Not tainted syzkaller #0 [ 235.973940][ T6363] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 235.975458][ T6363] Call trace: [ 235.975971][ T6363] dump_backtrace+0x0/0x43c [ 235.976611][ T6363] show_stack+0x2c/0x3c [ 235.977223][ T6363] __dump_stack+0x30/0x40 [ 235.977904][ T6363] dump_stack_lvl+0xf8/0x160 [ 235.978560][ T6363] dump_stack+0x1c/0x5c [ 235.979135][ T6363] sysfs_create_dir_ns+0x22c/0x24c [ 235.979907][ T6363] kobject_add_internal+0x590/0xc54 [ 235.980695][ T6363] kobject_init_and_add+0x118/0x17c [ 235.981532][ T6363] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.982261][ T6363] gfs2_fill_super+0xdac/0x19e0 [ 235.983062][ T6363] get_tree_bdev+0x358/0x544 [ 235.983839][ T6363] gfs2_get_tree+0x54/0x1b4 [ 235.984563][ T6363] vfs_get_tree+0x90/0x274 [ 235.985186][ T6363] do_new_mount+0x228/0x810 [ 235.985926][ T6363] path_mount+0x5b4/0x1000 [ 235.986586][ T6363] __arm64_sys_mount+0x514/0x5e4 [ 235.987361][ T6363] invoke_syscall+0x98/0x2b8 [ 235.988054][ T6363] el0_svc_common+0x138/0x258 [ 235.988769][ T6363] do_el0_svc+0x58/0x14c [ 235.989359][ T6363] el0_svc+0x78/0x1e0 [ 235.989902][ T6363] el0t_64_sync_handler+0xcc/0xe4 [ 235.990668][ T6363] el0t_64_sync+0x1a0/0x1a4 [ 235.993324][ T6363] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.995386][ T6363] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.015871][ T27] INFO: task kworker/0:11:4680 blocked for more than 143 seconds. [ 236.017108][ T27] Not tainted syzkaller #0 [ 236.017839][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 236.019212][ T27] task:kworker/0:11 state:D stack: 0 pid: 4680 ppid: 2 flags:0x00000008 [ 236.020529][ T27] Workqueue: gfs_recovery gfs2_recover_func [ 236.021458][ T27] Call trace: [ 236.022003][ T27] __switch_to+0x2f4/0x558 [ 236.022689][ T27] __schedule+0xe08/0x1bf8 [ 236.023362][ T27] schedule+0x11c/0x1c8 [ 236.024048][ T27] io_schedule+0x84/0x160 [ 236.024738][ T27] wait_on_page_bit_common+0x61c/0xa74 [ 236.027908][ T27] wait_on_page_bit+0x58/0x68 [ 236.028646][ T27] gfs2_jhead_process_page+0x1e0/0x698 [ 236.029489][ T27] gfs2_find_jhead+0xb6c/0xca8 [ 236.030629][ T27] gfs2_recover_func+0x500/0x157c [ 236.031499][ T27] process_one_work+0x79c/0x1140 [ 236.032183][ T27] worker_thread+0x8f4/0x101c [ 236.032955][ T27] kthread+0x374/0x454 [ 236.033583][ T27] ret_from_fork+0x10/0x20 [ 236.034277][ T27] INFO: task syz.0.17:4972 blocked for more than 143 seconds. [ 236.036040][ T27] Not tainted syzkaller #0 [ 236.036728][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 236.038226][ T27] task:syz.0.17 state:D stack: 0 pid: 4972 ppid: 4753 flags:0x00000009 [ 236.039669][ T27] Call trace: [ 236.040174][ T27] __switch_to+0x2f4/0x558 [ 236.040913][ T27] __schedule+0xe08/0x1bf8 [ 236.041552][ T27] schedule+0x11c/0x1c8 [ 236.042235][ T27] bit_wait+0x1c/0xac [ 236.042904][ T27] out_of_line_wait_on_bit+0x15c/0x200 [ 236.043773][ T27] gfs2_recover_journal+0xf0/0x16c [ 236.044617][ T27] init_journal+0x133c/0x1d7c [ 236.047400][ T27] init_inodes+0xe0/0x2d4 [ 236.048573][ T27] gfs2_fill_super+0x121c/0x19e0 [ 236.049384][ T27] get_tree_bdev+0x358/0x544 [ 236.050178][ T27] gfs2_get_tree+0x54/0x1b4 [ 236.050944][ T27] vfs_get_tree+0x90/0x274 [ 236.051630][ T27] do_new_mount+0x228/0x810 [ 236.052351][ T27] path_mount+0x5b4/0x1000 [ 236.053025][ T27] __arm64_sys_mount+0x514/0x5e4 [ 236.053844][ T27] invoke_syscall+0x98/0x2b8 [ 236.054586][ T27] el0_svc_common+0x138/0x258 [ 236.055904][ T27] do_el0_svc+0x58/0x14c [ 236.056530][ T27] el0_svc+0x78/0x1e0 [ 236.057145][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 236.057996][ T27] el0t_64_sync+0x1a0/0x1a4 [ 236.058880][ T27] [ 236.058880][ T27] Showing all locks held in the system: [ 236.060104][ T27] 1 lock held by khungtaskd/27: [ 236.060856][ T27] #0: ffff8000142f1520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 236.062372][ T27] 2 locks held by getty/3805: [ 236.063117][ T27] #0: ffff0000d5313098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 236.064585][ T27] #1: ffff80001bb9e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 236.067623][ T27] 2 locks held by kworker/0:11/4680: [ 236.068474][ T27] #0: ffff0000c67d2938 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 [ 236.070357][ T27] #1: ffff80001f7e7c00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 [ 236.072076][ T27] 1 lock held by syz.0.17/4972: [ 236.072796][ T27] #0: ffff0000da4d40e0 (&type->s_umount_key#51/1){+.+.}-{3:3}, at: alloc_super+0x1a8/0x824 [ 236.074548][ T27] 2 locks held by syz.1.687/6365: [ 236.077013][ T27] [ 236.077371][ T27] ============================================= [ 236.077371][ T27] [ 236.078731][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 236.079776][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 236.080911][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 236.082547][ T27] Call trace: [ 236.083033][ T27] dump_backtrace+0x0/0x43c [ 236.083729][ T27] show_stack+0x2c/0x3c [ 236.084379][ T27] __dump_stack+0x30/0x40 [ 236.085066][ T27] dump_stack_lvl+0xf8/0x160 [ 236.085768][ T27] dump_stack+0x1c/0x5c [ 236.086422][ T27] panic+0x2e4/0x854 [ 236.086984][ T27] hung_task_panic+0x0/0x2c [ 236.087725][ T27] kthread+0x374/0x454 [ 236.088392][ T27] ret_from_fork+0x10/0x20 [ 236.089114][ T27] SMP: stopping secondary CPUs [ 236.089854][ T27] Kernel Offset: disabled [ 236.090521][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 236.091362][ T27] Memory Limit: none [ 236.423263][ T27] Rebooting in 86400 seconds..