][ T6702] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.999290][ T6702] CPU: 0 PID: 6702 Comm: syz.1.540 Not tainted syzkaller #0 [ 214.000507][ T6702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 214.002068][ T6702] Call trace: [ 214.002603][ T6702] dump_backtrace+0x0/0x43c [ 214.003331][ T6702] show_stack+0x2c/0x3c [ 214.003980][ T6702] __dump_stack+0x30/0x40 [ 214.004642][ T6702] dump_stack_lvl+0xf8/0x160 [ 214.005326][ T6702] dump_stack+0x1c/0x5c [ 214.005915][ T6702] sysfs_create_dir_ns+0x22c/0x24c [ 214.006659][ T6702] kobject_add_internal+0x590/0xc54 [ 214.007421][ T6702] kobject_init_and_add+0x118/0x17c [ 214.008170][ T6702] gfs2_sys_fs_add+0x1dc/0x3d8 [ 214.008837][ T6702] gfs2_fill_super+0xdac/0x19e0 [ 214.009588][ T6702] get_tree_bdev+0x358/0x544 [ 214.010273][ T6702] gfs2_get_tree+0x54/0x1b4 [ 214.010987][ T6702] vfs_get_tree+0x90/0x274 [ 214.011591][ T6702] do_new_mount+0x228/0x810 [ 214.012252][ T6702] path_mount+0x5b4/0x1000 [ 214.012880][ T6702] __arm64_sys_mount+0x514/0x5e4 [ 214.013584][ T6702] invoke_syscall+0x98/0x2b8 [ 214.014289][ T6702] el0_svc_common+0x138/0x258 [ 214.014921][ T6702] do_el0_svc+0x58/0x14c [ 214.015514][ T6702] el0_svc+0x78/0x1e0 [ 214.016043][ T6702] el0t_64_sync_handler+0xcc/0xe4 [ 214.016807][ T6702] el0t_64_sync+0x1a0/0x1a4 [ 214.019168][ T6702] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.021213][ T6702] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.154719][ T6705] loop1: detected capacity change from 0 to 32768 [ 214.203080][ T6705] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.204335][ T6705] CPU: 1 PID: 6705 Comm: syz.1.541 Not tainted syzkaller #0 [ 214.205498][ T6705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 214.207019][ T6705] Call trace: [ 214.207519][ T6705] dump_backtrace+0x0/0x43c [ 214.208201][ T6705] show_stack+0x2c/0x3c [ 214.208875][ T6705] __dump_stack+0x30/0x40 [ 214.209621][ T6705] dump_stack_lvl+0xf8/0x160 [ 214.210334][ T6705] dump_stack+0x1c/0x5c [ 214.210942][ T6705] sysfs_create_dir_ns+0x22c/0x24c [ 214.211749][ T6705] kobject_add_internal+0x590/0xc54 [ 214.212532][ T6705] kobject_init_and_add+0x118/0x17c [ 214.213307][ T6705] gfs2_sys_fs_add+0x1dc/0x3d8 [ 214.214045][ T6705] gfs2_fill_super+0xdac/0x19e0 [ 214.214762][ T6705] get_tree_bdev+0x358/0x544 [ 214.215407][ T6705] gfs2_get_tree+0x54/0x1b4 [ 214.216047][ T6705] vfs_get_tree+0x90/0x274 [ 214.216675][ T6705] do_new_mount+0x228/0x810 [ 214.217403][ T6705] path_mount+0x5b4/0x1000 [ 214.218115][ T6705] __arm64_sys_mount+0x514/0x5e4 [ 214.218873][ T6705] invoke_syscall+0x98/0x2b8 [ 214.219567][ T6705] el0_svc_common+0x138/0x258 [ 214.220248][ T6705] do_el0_svc+0x58/0x14c [ 214.220862][ T6705] el0_svc+0x78/0x1e0 [ 214.221472][ T6705] el0t_64_sync_handler+0xcc/0xe4 [ 214.222167][ T6705] el0t_64_sync+0x1a0/0x1a4 [ 214.224462][ T6705] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.226359][ T6705] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.364284][ T6708] loop1: detected capacity change from 0 to 32768 [ 214.466710][ T6708] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.467980][ T6708] CPU: 1 PID: 6708 Comm: syz.1.542 Not tainted syzkaller #0 [ 214.469074][ T6708] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 214.470548][ T6708] Call trace: [ 214.471014][ T6708] dump_backtrace+0x0/0x43c [ 214.471733][ T6708] show_stack+0x2c/0x3c [ 214.472365][ T6708] __dump_stack+0x30/0x40 [ 214.473108][ T6708] dump_stack_lvl+0xf8/0x160 [ 214.473769][ T6708] dump_stack+0x1c/0x5c [ 214.474448][ T6708] sysfs_create_dir_ns+0x22c/0x24c [ 214.475230][ T6708] kobject_add_internal+0x590/0xc54 [ 214.476005][ T6708] kobject_init_and_add+0x118/0x17c [ 214.476781][ T6708] gfs2_sys_fs_add+0x1dc/0x3d8 [ 214.477462][ T6708] gfs2_fill_super+0xdac/0x19e0 [ 214.478176][ T6708] get_tree_bdev+0x358/0x544 [ 214.478838][ T6708] gfs2_get_tree+0x54/0x1b4 [ 214.479535][ T6708] vfs_get_tree+0x90/0x274 [ 214.480181][ T6708] do_new_mount+0x228/0x810 [ 214.480808][ T6708] path_mount+0x5b4/0x1000 [ 214.481448][ T6708] __arm64_sys_mount+0x514/0x5e4 [ 214.482163][ T6708] invoke_syscall+0x98/0x2b8 [ 214.482925][ T6708] el0_svc_common+0x138/0x258 [ 214.483576][ T6708] do_el0_svc+0x58/0x14c [ 214.484199][ T6708] el0_svc+0x78/0x1e0 [ 214.484809][ T6708] el0t_64_sync_handler+0xcc/0xe4 [ 214.485557][ T6708] el0t_64_sync+0x1a0/0x1a4 [ 214.488686][ T6708] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.490568][ T6708] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.629747][ T6711] loop1: detected capacity change from 0 to 32768 [ 214.637969][ T6711] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.639179][ T6711] CPU: 0 PID: 6711 Comm: syz.1.543 Not tainted syzkaller #0 [ 214.640259][ T6711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 214.641775][ T6711] Call trace: [ 214.642288][ T6711] dump_backtrace+0x0/0x43c [ 214.642983][ T6711] show_stack+0x2c/0x3c [ 214.643679][ T6711] __dump_stack+0x30/0x40 [ 214.644356][ T6711] dump_stack_lvl+0xf8/0x160 [ 214.645067][ T6711] dump_stack+0x1c/0x5c [ 214.645768][ T6711] sysfs_create_dir_ns+0x22c/0x24c [ 214.646542][ T6711] kobject_add_internal+0x590/0xc54 [ 214.647237][ T6711] kobject_init_and_add+0x118/0x17c [ 214.648040][ T6711] gfs2_sys_fs_add+0x1dc/0x3d8 [ 214.648752][ T6711] gfs2_fill_super+0xdac/0x19e0 [ 214.649493][ T6711] get_tree_bdev+0x358/0x544 [ 214.650228][ T6711] gfs2_get_tree+0x54/0x1b4 [ 214.650964][ T6711] vfs_get_tree+0x90/0x274 [ 214.651667][ T6711] do_new_mount+0x228/0x810 [ 214.652307][ T6711] path_mount+0x5b4/0x1000 [ 214.652977][ T6711] __arm64_sys_mount+0x514/0x5e4 [ 214.653742][ T6711] invoke_syscall+0x98/0x2b8 [ 214.654456][ T6711] el0_svc_common+0x138/0x258 [ 214.655099][ T6711] do_el0_svc+0x58/0x14c [ 214.655704][ T6711] el0_svc+0x78/0x1e0 [ 214.656337][ T6711] el0t_64_sync_handler+0xcc/0xe4 [ 214.657084][ T6711] el0t_64_sync+0x1a0/0x1a4 [ 214.657997][ T6711] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.659984][ T6711] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.883479][ T6714] loop1: detected capacity change from 0 to 32768 [ 214.933410][ T6714] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.934683][ T6714] CPU: 0 PID: 6714 Comm: syz.1.544 Not tainted syzkaller #0 [ 214.935832][ T6714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 214.937402][ T6714] Call trace: [ 214.937877][ T6714] dump_backtrace+0x0/0x43c [ 214.938526][ T6714] show_stack+0x2c/0x3c [ 214.939135][ T6714] __dump_stack+0x30/0x40 [ 214.939802][ T6714] dump_stack_lvl+0xf8/0x160 [ 214.940547][ T6714] dump_stack+0x1c/0x5c [ 214.941152][ T6714] sysfs_create_dir_ns+0x22c/0x24c [ 214.941919][ T6714] kobject_add_internal+0x590/0xc54 [ 214.942722][ T6714] kobject_init_and_add+0x118/0x17c [ 214.943501][ T6714] gfs2_sys_fs_add+0x1dc/0x3d8 [ 214.944249][ T6714] gfs2_fill_super+0xdac/0x19e0 [ 214.944943][ T6714] get_tree_bdev+0x358/0x544 [ 214.945652][ T6714] gfs2_get_tree+0x54/0x1b4 [ 214.946315][ T6714] vfs_get_tree+0x90/0x274 [ 214.946998][ T6714] do_new_mount+0x228/0x810 [ 214.947666][ T6714] path_mount+0x5b4/0x1000 [ 214.948273][ T6714] __arm64_sys_mount+0x514/0x5e4 [ 214.949071][ T6714] invoke_syscall+0x98/0x2b8 [ 214.949736][ T6714] el0_svc_common+0x138/0x258 [ 214.950462][ T6714] do_el0_svc+0x58/0x14c [ 214.951091][ T6714] el0_svc+0x78/0x1e0 [ 214.951673][ T6714] el0t_64_sync_handler+0xcc/0xe4 [ 214.952414][ T6714] el0t_64_sync+0x1a0/0x1a4 [ 214.953306][ T6714] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.955254][ T6714] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.115058][ T6717] loop1: detected capacity change from 0 to 32768 [ 215.156958][ T6717] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.158403][ T6717] CPU: 0 PID: 6717 Comm: syz.1.545 Not tainted syzkaller #0 [ 215.159534][ T6717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 215.160983][ T6717] Call trace: [ 215.161455][ T6717] dump_backtrace+0x0/0x43c [ 215.162127][ T6717] show_stack+0x2c/0x3c [ 215.162751][ T6717] __dump_stack+0x30/0x40 [ 215.163398][ T6717] dump_stack_lvl+0xf8/0x160 [ 215.164109][ T6717] dump_stack+0x1c/0x5c [ 215.164748][ T6717] sysfs_create_dir_ns+0x22c/0x24c [ 215.165509][ T6717] kobject_add_internal+0x590/0xc54 [ 215.166273][ T6717] kobject_init_and_add+0x118/0x17c [ 215.167091][ T6717] gfs2_sys_fs_add+0x1dc/0x3d8 [ 215.167776][ T6717] gfs2_fill_super+0xdac/0x19e0 [ 215.168543][ T6717] get_tree_bdev+0x358/0x544 [ 215.169199][ T6717] gfs2_get_tree+0x54/0x1b4 [ 215.169868][ T6717] vfs_get_tree+0x90/0x274 [ 215.170443][ T6717] do_new_mount+0x228/0x810 [ 215.171043][ T6717] path_mount+0x5b4/0x1000 [ 215.171635][ T6717] __arm64_sys_mount+0x514/0x5e4 [ 215.172317][ T6717] invoke_syscall+0x98/0x2b8 [ 215.172956][ T6717] el0_svc_common+0x138/0x258 [ 215.173665][ T6717] do_el0_svc+0x58/0x14c [ 215.174329][ T6717] el0_svc+0x78/0x1e0 [ 215.174939][ T6717] el0t_64_sync_handler+0xcc/0xe4 [ 215.175661][ T6717] el0t_64_sync+0x1a0/0x1a4 [ 215.178280][ T6717] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.180332][ T6717] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.436874][ T6720] loop1: detected capacity change from 0 to 32768 [ 215.486773][ T6720] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.488085][ T6720] CPU: 1 PID: 6720 Comm: syz.1.546 Not tainted syzkaller #0 [ 215.489194][ T6720] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 215.490747][ T6720] Call trace: [ 215.491229][ T6720] dump_backtrace+0x0/0x43c [ 215.491871][ T6720] show_stack+0x2c/0x3c [ 215.492513][ T6720] __dump_stack+0x30/0x40 [ 215.493151][ T6720] dump_stack_lvl+0xf8/0x160 [ 215.493819][ T6720] dump_stack+0x1c/0x5c [ 215.494448][ T6720] sysfs_create_dir_ns+0x22c/0x24c [ 215.495261][ T6720] kobject_add_internal+0x590/0xc54 [ 215.495991][ T6720] kobject_init_and_add+0x118/0x17c [ 215.496810][ T6720] gfs2_sys_fs_add+0x1dc/0x3d8 [ 215.497467][ T6720] gfs2_fill_super+0xdac/0x19e0 [ 215.498172][ T6720] get_tree_bdev+0x358/0x544 [ 215.498816][ T6720] gfs2_get_tree+0x54/0x1b4 [ 215.499450][ T6720] vfs_get_tree+0x90/0x274 [ 215.500166][ T6720] do_new_mount+0x228/0x810 [ 215.500855][ T6720] path_mount+0x5b4/0x1000 [ 215.501494][ T6720] __arm64_sys_mount+0x514/0x5e4 [ 215.502255][ T6720] invoke_syscall+0x98/0x2b8 [ 215.502907][ T6720] el0_svc_common+0x138/0x258 [ 215.503521][ T6720] do_el0_svc+0x58/0x14c [ 215.504181][ T6720] el0_svc+0x78/0x1e0 [ 215.504749][ T6720] el0t_64_sync_handler+0xcc/0xe4 [ 215.505414][ T6720] el0t_64_sync+0x1a0/0x1a4 [ 215.506304][ T6720] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.508217][ T6720] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.646616][ T6723] loop1: detected capacity change from 0 to 32768 [ 215.753972][ T6723] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.755304][ T6723] CPU: 1 PID: 6723 Comm: syz.1.547 Not tainted syzkaller #0 [ 215.756424][ T6723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 215.757951][ T6723] Call trace: [ 215.758446][ T6723] dump_backtrace+0x0/0x43c [ 215.759135][ T6723] show_stack+0x2c/0x3c [ 215.759788][ T6723] __dump_stack+0x30/0x40 [ 215.760442][ T6723] dump_stack_lvl+0xf8/0x160 [ 215.761106][ T6723] dump_stack+0x1c/0x5c [ 215.761679][ T6723] sysfs_create_dir_ns+0x22c/0x24c [ 215.762457][ T6723] kobject_add_internal+0x590/0xc54 [ 215.763255][ T6723] kobject_init_and_add+0x118/0x17c [ 215.764008][ T6723] gfs2_sys_fs_add+0x1dc/0x3d8 [ 215.764680][ T6723] gfs2_fill_super+0xdac/0x19e0 [ 215.765363][ T6723] get_tree_bdev+0x358/0x544 [ 215.766025][ T6723] gfs2_get_tree+0x54/0x1b4 [ 215.766706][ T6723] vfs_get_tree+0x90/0x274 [ 215.767369][ T6723] do_new_mount+0x228/0x810 [ 215.768074][ T6723] path_mount+0x5b4/0x1000 [ 215.768742][ T6723] __arm64_sys_mount+0x514/0x5e4 [ 215.769484][ T6723] invoke_syscall+0x98/0x2b8 [ 215.770115][ T6723] el0_svc_common+0x138/0x258 [ 215.770803][ T6723] do_el0_svc+0x58/0x14c [ 215.771467][ T6723] el0_svc+0x78/0x1e0 [ 215.772128][ T6723] el0t_64_sync_handler+0xcc/0xe4 [ 215.772911][ T6723] el0t_64_sync+0x1a0/0x1a4 [ 215.775228][ T6723] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.777206][ T6723] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.916475][ T6726] loop1: detected capacity change from 0 to 32768 [ 215.924570][ T6726] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.925766][ T6726] CPU: 1 PID: 6726 Comm: syz.1.548 Not tainted syzkaller #0 [ 215.926893][ T6726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 215.928383][ T6726] Call trace: [ 215.928844][ T6726] dump_backtrace+0x0/0x43c [ 215.929543][ T6726] show_stack+0x2c/0x3c [ 215.930084][ T6726] __dump_stack+0x30/0x40 [ 215.930702][ T6726] dump_stack_lvl+0xf8/0x160 [ 215.931322][ T6726] dump_stack+0x1c/0x5c [ 215.931966][ T6726] sysfs_create_dir_ns+0x22c/0x24c [ 215.932738][ T6726] kobject_add_internal+0x590/0xc54 [ 215.933512][ T6726] kobject_init_and_add+0x118/0x17c [ 215.934285][ T6726] gfs2_sys_fs_add+0x1dc/0x3d8 [ 215.935024][ T6726] gfs2_fill_super+0xdac/0x19e0 [ 215.935718][ T6726] get_tree_bdev+0x358/0x544 [ 215.936368][ T6726] gfs2_get_tree+0x54/0x1b4 [ 215.937026][ T6726] vfs_get_tree+0x90/0x274 [ 215.937713][ T6726] do_new_mount+0x228/0x810 [ 215.938369][ T6726] path_mount+0x5b4/0x1000 [ 215.939020][ T6726] __arm64_sys_mount+0x514/0x5e4 [ 215.939661][ T6726] invoke_syscall+0x98/0x2b8 [ 215.940376][ T6726] el0_svc_common+0x138/0x258 [ 215.941080][ T6726] do_el0_svc+0x58/0x14c [ 215.941665][ T6726] el0_svc+0x78/0x1e0 [ 215.942204][ T6726] el0t_64_sync_handler+0xcc/0xe4 [ 215.942948][ T6726] el0t_64_sync+0x1a0/0x1a4 [ 215.946519][ T6726] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.948459][ T6726] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:35 executed programs: 535 [ 216.091214][ T6729] loop1: detected capacity change from 0 to 32768 [ 216.143366][ T6729] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.144647][ T6729] CPU: 0 PID: 6729 Comm: syz.1.549 Not tainted syzkaller #0 [ 216.145690][ T6729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 216.147169][ T6729] Call trace: [ 216.147663][ T6729] dump_backtrace+0x0/0x43c [ 216.148359][ T6729] show_stack+0x2c/0x3c [ 216.148969][ T6729] __dump_stack+0x30/0x40 [ 216.149631][ T6729] dump_stack_lvl+0xf8/0x160 [ 216.150323][ T6729] dump_stack+0x1c/0x5c [ 216.150920][ T6729] sysfs_create_dir_ns+0x22c/0x24c [ 216.151685][ T6729] kobject_add_internal+0x590/0xc54 [ 216.152506][ T6729] kobject_init_and_add+0x118/0x17c [ 216.153308][ T6729] gfs2_sys_fs_add+0x1dc/0x3d8 [ 216.154029][ T6729] gfs2_fill_super+0xdac/0x19e0 [ 216.154686][ T6729] get_tree_bdev+0x358/0x544 [ 216.155316][ T6729] gfs2_get_tree+0x54/0x1b4 [ 216.155957][ T6729] vfs_get_tree+0x90/0x274 [ 216.156607][ T6729] do_new_mount+0x228/0x810 [ 216.157311][ T6729] path_mount+0x5b4/0x1000 [ 216.158005][ T6729] __arm64_sys_mount+0x514/0x5e4 [ 216.158775][ T6729] invoke_syscall+0x98/0x2b8 [ 216.159472][ T6729] el0_svc_common+0x138/0x258 [ 216.160162][ T6729] do_el0_svc+0x58/0x14c [ 216.160831][ T6729] el0_svc+0x78/0x1e0 [ 216.161485][ T6729] el0t_64_sync_handler+0xcc/0xe4 [ 216.162294][ T6729] el0t_64_sync+0x1a0/0x1a4 [ 216.163219][ T6729] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.165266][ T6729] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.366855][ T6732] loop1: detected capacity change from 0 to 32768 [ 216.452880][ T6732] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.453980][ T6732] CPU: 0 PID: 6732 Comm: syz.1.550 Not tainted syzkaller #0 [ 216.455077][ T6732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 216.456540][ T6732] Call trace: [ 216.457019][ T6732] dump_backtrace+0x0/0x43c [ 216.457711][ T6732] show_stack+0x2c/0x3c [ 216.458304][ T6732] __dump_stack+0x30/0x40 [ 216.458927][ T6732] dump_stack_lvl+0xf8/0x160 [ 216.459587][ T6732] dump_stack+0x1c/0x5c [ 216.460228][ T6732] sysfs_create_dir_ns+0x22c/0x24c [ 216.461107][ T6732] kobject_add_internal+0x590/0xc54 [ 216.461895][ T6732] kobject_init_and_add+0x118/0x17c [ 216.462672][ T6732] gfs2_sys_fs_add+0x1dc/0x3d8 [ 216.463441][ T6732] gfs2_fill_super+0xdac/0x19e0 [ 216.464170][ T6732] get_tree_bdev+0x358/0x544 [ 216.464917][ T6732] gfs2_get_tree+0x54/0x1b4 [ 216.465678][ T6732] vfs_get_tree+0x90/0x274 [ 216.466378][ T6732] do_new_mount+0x228/0x810 [ 216.467124][ T6732] path_mount+0x5b4/0x1000 [ 216.467829][ T6732] __arm64_sys_mount+0x514/0x5e4 [ 216.468602][ T6732] invoke_syscall+0x98/0x2b8 [ 216.469268][ T6732] el0_svc_common+0x138/0x258 [ 216.469953][ T6732] do_el0_svc+0x58/0x14c [ 216.470589][ T6732] el0_svc+0x78/0x1e0 [ 216.471187][ T6732] el0t_64_sync_handler+0xcc/0xe4 [ 216.471950][ T6732] el0t_64_sync+0x1a0/0x1a4 [ 216.472763][ T6732] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.474606][ T6732] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.609690][ T6735] loop1: detected capacity change from 0 to 32768 [ 216.647407][ T6735] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.648577][ T6735] CPU: 0 PID: 6735 Comm: syz.1.551 Not tainted syzkaller #0 [ 216.649690][ T6735] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 216.651197][ T6735] Call trace: [ 216.651639][ T6735] dump_backtrace+0x0/0x43c [ 216.652322][ T6735] show_stack+0x2c/0x3c [ 216.652943][ T6735] __dump_stack+0x30/0x40 [ 216.653626][ T6735] dump_stack_lvl+0xf8/0x160 [ 216.654286][ T6735] dump_stack+0x1c/0x5c [ 216.654894][ T6735] sysfs_create_dir_ns+0x22c/0x24c [ 216.655694][ T6735] kobject_add_internal+0x590/0xc54 [ 216.656653][ T6735] kobject_init_and_add+0x118/0x17c [ 216.657480][ T6735] gfs2_sys_fs_add+0x1dc/0x3d8 [ 216.658274][ T6735] gfs2_fill_super+0xdac/0x19e0 [ 216.659073][ T6735] get_tree_bdev+0x358/0x544 [ 216.659814][ T6735] gfs2_get_tree+0x54/0x1b4 [ 216.660547][ T6735] vfs_get_tree+0x90/0x274 [ 216.661237][ T6735] do_new_mount+0x228/0x810 [ 216.661951][ T6735] path_mount+0x5b4/0x1000 [ 216.662652][ T6735] __arm64_sys_mount+0x514/0x5e4 [ 216.663320][ T6735] invoke_syscall+0x98/0x2b8 [ 216.663987][ T6735] el0_svc_common+0x138/0x258 [ 216.664707][ T6735] do_el0_svc+0x58/0x14c [ 216.665366][ T6735] el0_svc+0x78/0x1e0 [ 216.665997][ T6735] el0t_64_sync_handler+0xcc/0xe4 [ 216.666789][ T6735] el0t_64_sync+0x1a0/0x1a4 [ 216.668993][ T6735] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.670964][ T6735] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.809380][ T6738] loop1: detected capacity change from 0 to 32768 [ 216.818276][ T6738] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.819503][ T6738] CPU: 0 PID: 6738 Comm: syz.1.552 Not tainted syzkaller #0 [ 216.820644][ T6738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 216.822160][ T6738] Call trace: [ 216.822691][ T6738] dump_backtrace+0x0/0x43c [ 216.823423][ T6738] show_stack+0x2c/0x3c [ 216.824095][ T6738] __dump_stack+0x30/0x40 [ 216.824740][ T6738] dump_stack_lvl+0xf8/0x160 [ 216.825436][ T6738] dump_stack+0x1c/0x5c [ 216.826104][ T6738] sysfs_create_dir_ns+0x22c/0x24c [ 216.826867][ T6738] kobject_add_internal+0x590/0xc54 [ 216.827633][ T6738] kobject_init_and_add+0x118/0x17c [ 216.828379][ T6738] gfs2_sys_fs_add+0x1dc/0x3d8 [ 216.829051][ T6738] gfs2_fill_super+0xdac/0x19e0 [ 216.829737][ T6738] get_tree_bdev+0x358/0x544 [ 216.830417][ T6738] gfs2_get_tree+0x54/0x1b4 [ 216.831114][ T6738] vfs_get_tree+0x90/0x274 [ 216.831748][ T6738] do_new_mount+0x228/0x810 [ 216.832400][ T6738] path_mount+0x5b4/0x1000 [ 216.833066][ T6738] __arm64_sys_mount+0x514/0x5e4 [ 216.833745][ T6738] invoke_syscall+0x98/0x2b8 [ 216.834424][ T6738] el0_svc_common+0x138/0x258 [ 216.835151][ T6738] do_el0_svc+0x58/0x14c [ 216.835805][ T6738] el0_svc+0x78/0x1e0 [ 216.836394][ T6738] el0t_64_sync_handler+0xcc/0xe4 [ 216.837085][ T6738] el0t_64_sync+0x1a0/0x1a4 [ 216.840641][ T6738] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.842760][ T6738] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.995559][ T6741] loop1: detected capacity change from 0 to 32768 [ 217.068805][ T6741] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.069973][ T6741] CPU: 1 PID: 6741 Comm: syz.1.553 Not tainted syzkaller #0 [ 217.071048][ T6741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 217.072567][ T6741] Call trace: [ 217.073126][ T6741] dump_backtrace+0x0/0x43c [ 217.073913][ T6741] show_stack+0x2c/0x3c [ 217.074625][ T6741] __dump_stack+0x30/0x40 [ 217.075321][ T6741] dump_stack_lvl+0xf8/0x160 [ 217.076061][ T6741] dump_stack+0x1c/0x5c [ 217.076678][ T6741] sysfs_create_dir_ns+0x22c/0x24c [ 217.077419][ T6741] kobject_add_internal+0x590/0xc54 [ 217.078201][ T6741] kobject_init_and_add+0x118/0x17c [ 217.078984][ T6741] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.079685][ T6741] gfs2_fill_super+0xdac/0x19e0 [ 217.080379][ T6741] get_tree_bdev+0x358/0x544 [ 217.081134][ T6741] gfs2_get_tree+0x54/0x1b4 [ 217.081767][ T6741] vfs_get_tree+0x90/0x274 [ 217.082428][ T6741] do_new_mount+0x228/0x810 [ 217.083087][ T6741] path_mount+0x5b4/0x1000 [ 217.083753][ T6741] __arm64_sys_mount+0x514/0x5e4 [ 217.084529][ T6741] invoke_syscall+0x98/0x2b8 [ 217.085237][ T6741] el0_svc_common+0x138/0x258 [ 217.085876][ T6741] do_el0_svc+0x58/0x14c [ 217.086475][ T6741] el0_svc+0x78/0x1e0 [ 217.087052][ T6741] el0t_64_sync_handler+0xcc/0xe4 [ 217.087766][ T6741] el0t_64_sync+0x1a0/0x1a4 [ 217.088663][ T6741] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.090431][ T6741] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.239509][ T6744] loop1: detected capacity change from 0 to 32768 [ 217.245713][ T6744] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.246944][ T6744] CPU: 0 PID: 6744 Comm: syz.1.554 Not tainted syzkaller #0 [ 217.247992][ T6744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 217.249495][ T6744] Call trace: [ 217.249946][ T6744] dump_backtrace+0x0/0x43c [ 217.250604][ T6744] show_stack+0x2c/0x3c [ 217.251191][ T6744] __dump_stack+0x30/0x40 [ 217.251789][ T6744] dump_stack_lvl+0xf8/0x160 [ 217.252456][ T6744] dump_stack+0x1c/0x5c [ 217.253077][ T6744] sysfs_create_dir_ns+0x22c/0x24c [ 217.253885][ T6744] kobject_add_internal+0x590/0xc54 [ 217.254661][ T6744] kobject_init_and_add+0x118/0x17c [ 217.255410][ T6744] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.256142][ T6744] gfs2_fill_super+0xdac/0x19e0 [ 217.256883][ T6744] get_tree_bdev+0x358/0x544 [ 217.257562][ T6744] gfs2_get_tree+0x54/0x1b4 [ 217.258270][ T6744] vfs_get_tree+0x90/0x274 [ 217.258926][ T6744] do_new_mount+0x228/0x810 [ 217.259597][ T6744] path_mount+0x5b4/0x1000 [ 217.260342][ T6744] __arm64_sys_mount+0x514/0x5e4 [ 217.261099][ T6744] invoke_syscall+0x98/0x2b8 [ 217.261831][ T6744] el0_svc_common+0x138/0x258 [ 217.262532][ T6744] do_el0_svc+0x58/0x14c [ 217.263112][ T6744] el0_svc+0x78/0x1e0 [ 217.263657][ T6744] el0t_64_sync_handler+0xcc/0xe4 [ 217.264468][ T6744] el0t_64_sync+0x1a0/0x1a4 [ 217.268077][ T6744] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.269965][ T6744] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.408043][ T6747] loop1: detected capacity change from 0 to 32768 [ 217.484720][ T6747] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.485935][ T6747] CPU: 1 PID: 6747 Comm: syz.1.555 Not tainted syzkaller #0 [ 217.487055][ T6747] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 217.488652][ T6747] Call trace: [ 217.489134][ T6747] dump_backtrace+0x0/0x43c [ 217.489814][ T6747] show_stack+0x2c/0x3c [ 217.490451][ T6747] __dump_stack+0x30/0x40 [ 217.491117][ T6747] dump_stack_lvl+0xf8/0x160 [ 217.491797][ T6747] dump_stack+0x1c/0x5c [ 217.492417][ T6747] sysfs_create_dir_ns+0x22c/0x24c [ 217.493174][ T6747] kobject_add_internal+0x590/0xc54 [ 217.493985][ T6747] kobject_init_and_add+0x118/0x17c [ 217.494841][ T6747] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.495569][ T6747] gfs2_fill_super+0xdac/0x19e0 [ 217.496240][ T6747] get_tree_bdev+0x358/0x544 [ 217.496940][ T6747] gfs2_get_tree+0x54/0x1b4 [ 217.497592][ T6747] vfs_get_tree+0x90/0x274 [ 217.498227][ T6747] do_new_mount+0x228/0x810 [ 217.498989][ T6747] path_mount+0x5b4/0x1000 [ 217.499652][ T6747] __arm64_sys_mount+0x514/0x5e4 [ 217.500404][ T6747] invoke_syscall+0x98/0x2b8 [ 217.501051][ T6747] el0_svc_common+0x138/0x258 [ 217.501763][ T6747] do_el0_svc+0x58/0x14c [ 217.502316][ T6747] el0_svc+0x78/0x1e0 [ 217.502909][ T6747] el0t_64_sync_handler+0xcc/0xe4 [ 217.503672][ T6747] el0t_64_sync+0x1a0/0x1a4 [ 217.504969][ T6747] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.507017][ T6747] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.641464][ T6750] loop1: detected capacity change from 0 to 32768 [ 217.649628][ T6750] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.650842][ T6750] CPU: 1 PID: 6750 Comm: syz.1.556 Not tainted syzkaller #0 [ 217.651924][ T6750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 217.653368][ T6750] Call trace: [ 217.653895][ T6750] dump_backtrace+0x0/0x43c [ 217.654551][ T6750] show_stack+0x2c/0x3c [ 217.655169][ T6750] __dump_stack+0x30/0x40 [ 217.655839][ T6750] dump_stack_lvl+0xf8/0x160 [ 217.656502][ T6750] dump_stack+0x1c/0x5c [ 217.657132][ T6750] sysfs_create_dir_ns+0x22c/0x24c [ 217.657878][ T6750] kobject_add_internal+0x590/0xc54 [ 217.658728][ T6750] kobject_init_and_add+0x118/0x17c [ 217.659516][ T6750] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.660166][ T6750] gfs2_fill_super+0xdac/0x19e0 [ 217.660885][ T6750] get_tree_bdev+0x358/0x544 [ 217.661559][ T6750] gfs2_get_tree+0x54/0x1b4 [ 217.662170][ T6750] vfs_get_tree+0x90/0x274 [ 217.662759][ T6750] do_new_mount+0x228/0x810 [ 217.663406][ T6750] path_mount+0x5b4/0x1000 [ 217.664018][ T6750] __arm64_sys_mount+0x514/0x5e4 [ 217.664749][ T6750] invoke_syscall+0x98/0x2b8 [ 217.665426][ T6750] el0_svc_common+0x138/0x258 [ 217.666061][ T6750] do_el0_svc+0x58/0x14c [ 217.666655][ T6750] el0_svc+0x78/0x1e0 [ 217.667290][ T6750] el0t_64_sync_handler+0xcc/0xe4 [ 217.668032][ T6750] el0t_64_sync+0x1a0/0x1a4 [ 217.669994][ T6750] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.671966][ T6750] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.807710][ T6753] loop1: detected capacity change from 0 to 32768 [ 217.888189][ T6753] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.889460][ T6753] CPU: 0 PID: 6753 Comm: syz.1.557 Not tainted syzkaller #0 [ 217.890580][ T6753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 217.891998][ T6753] Call trace: [ 217.892486][ T6753] dump_backtrace+0x0/0x43c [ 217.893162][ T6753] show_stack+0x2c/0x3c [ 217.893824][ T6753] __dump_stack+0x30/0x40 [ 217.894463][ T6753] dump_stack_lvl+0xf8/0x160 [ 217.895154][ T6753] dump_stack+0x1c/0x5c [ 217.895742][ T6753] sysfs_create_dir_ns+0x22c/0x24c [ 217.896491][ T6753] kobject_add_internal+0x590/0xc54 [ 217.897261][ T6753] kobject_init_and_add+0x118/0x17c [ 217.897998][ T6753] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.898750][ T6753] gfs2_fill_super+0xdac/0x19e0 [ 217.899455][ T6753] get_tree_bdev+0x358/0x544 [ 217.900177][ T6753] gfs2_get_tree+0x54/0x1b4 [ 217.900854][ T6753] vfs_get_tree+0x90/0x274 [ 217.901488][ T6753] do_new_mount+0x228/0x810 [ 217.902265][ T6753] path_mount+0x5b4/0x1000 [ 217.903003][ T6753] __arm64_sys_mount+0x514/0x5e4 [ 217.903789][ T6753] invoke_syscall+0x98/0x2b8 [ 217.904535][ T6753] el0_svc_common+0x138/0x258 [ 217.905291][ T6753] do_el0_svc+0x58/0x14c [ 217.905941][ T6753] el0_svc+0x78/0x1e0 [ 217.906550][ T6753] el0t_64_sync_handler+0xcc/0xe4 [ 217.907300][ T6753] el0t_64_sync+0x1a0/0x1a4 [ 217.909560][ T6753] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.911533][ T6753] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.049169][ T6756] loop1: detected capacity change from 0 to 32768 [ 218.093272][ T6756] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.094414][ T6756] CPU: 0 PID: 6756 Comm: syz.1.558 Not tainted syzkaller #0 [ 218.095608][ T6756] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 218.097243][ T6756] Call trace: [ 218.097768][ T6756] dump_backtrace+0x0/0x43c [ 218.098494][ T6756] show_stack+0x2c/0x3c [ 218.099119][ T6756] __dump_stack+0x30/0x40 [ 218.099750][ T6756] dump_stack_lvl+0xf8/0x160 [ 218.100466][ T6756] dump_stack+0x1c/0x5c [ 218.101093][ T6756] sysfs_create_dir_ns+0x22c/0x24c [ 218.101882][ T6756] kobject_add_internal+0x590/0xc54 [ 218.102629][ T6756] kobject_init_and_add+0x118/0x17c [ 218.103409][ T6756] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.104127][ T6756] gfs2_fill_super+0xdac/0x19e0 [ 218.104835][ T6756] get_tree_bdev+0x358/0x544 [ 218.105497][ T6756] gfs2_get_tree+0x54/0x1b4 [ 218.106155][ T6756] vfs_get_tree+0x90/0x274 [ 218.106822][ T6756] do_new_mount+0x228/0x810 [ 218.107450][ T6756] path_mount+0x5b4/0x1000 [ 218.108066][ T6756] __arm64_sys_mount+0x514/0x5e4 [ 218.108786][ T6756] invoke_syscall+0x98/0x2b8 [ 218.109452][ T6756] el0_svc_common+0x138/0x258 [ 218.110262][ T6756] do_el0_svc+0x58/0x14c [ 218.110958][ T6756] el0_svc+0x78/0x1e0 [ 218.111620][ T6756] el0t_64_sync_handler+0xcc/0xe4 [ 218.112357][ T6756] el0t_64_sync+0x1a0/0x1a4 [ 218.115648][ T6756] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.117475][ T6756] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.255206][ T6759] loop1: detected capacity change from 0 to 32768 [ 218.303318][ T6759] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.304559][ T6759] CPU: 1 PID: 6759 Comm: syz.1.559 Not tainted syzkaller #0 [ 218.305573][ T6759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 218.307035][ T6759] Call trace: [ 218.307463][ T6759] dump_backtrace+0x0/0x43c [ 218.308060][ T6759] show_stack+0x2c/0x3c [ 218.308667][ T6759] __dump_stack+0x30/0x40 [ 218.309256][ T6759] dump_stack_lvl+0xf8/0x160 [ 218.309904][ T6759] dump_stack+0x1c/0x5c [ 218.310453][ T6759] sysfs_create_dir_ns+0x22c/0x24c [ 218.311169][ T6759] kobject_add_internal+0x590/0xc54 [ 218.311870][ T6759] kobject_init_and_add+0x118/0x17c [ 218.312584][ T6759] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.313241][ T6759] gfs2_fill_super+0xdac/0x19e0 [ 218.313936][ T6759] get_tree_bdev+0x358/0x544 [ 218.314592][ T6759] gfs2_get_tree+0x54/0x1b4 [ 218.315248][ T6759] vfs_get_tree+0x90/0x274 [ 218.315844][ T6759] do_new_mount+0x228/0x810 [ 218.316462][ T6759] path_mount+0x5b4/0x1000 [ 218.317133][ T6759] __arm64_sys_mount+0x514/0x5e4 [ 218.317834][ T6759] invoke_syscall+0x98/0x2b8 [ 218.318502][ T6759] el0_svc_common+0x138/0x258 [ 218.319235][ T6759] do_el0_svc+0x58/0x14c [ 218.319858][ T6759] el0_svc+0x78/0x1e0 [ 218.320436][ T6759] el0t_64_sync_handler+0xcc/0xe4 [ 218.321131][ T6759] el0t_64_sync+0x1a0/0x1a4 [ 218.321989][ T6759] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.323849][ T6759] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.458914][ T6762] loop1: detected capacity change from 0 to 32768 [ 218.540300][ T6762] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.541550][ T6762] CPU: 1 PID: 6762 Comm: syz.1.560 Not tainted syzkaller #0 [ 218.542726][ T6762] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 218.544275][ T6762] Call trace: [ 218.544790][ T6762] dump_backtrace+0x0/0x43c [ 218.545469][ T6762] show_stack+0x2c/0x3c [ 218.546047][ T6762] __dump_stack+0x30/0x40 [ 218.546714][ T6762] dump_stack_lvl+0xf8/0x160 [ 218.547413][ T6762] dump_stack+0x1c/0x5c [ 218.547942][ T6762] sysfs_create_dir_ns+0x22c/0x24c [ 218.548721][ T6762] kobject_add_internal+0x590/0xc54 [ 218.549545][ T6762] kobject_init_and_add+0x118/0x17c [ 218.550283][ T6762] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.550941][ T6762] gfs2_fill_super+0xdac/0x19e0 [ 218.551599][ T6762] get_tree_bdev+0x358/0x544 [ 218.552250][ T6762] gfs2_get_tree+0x54/0x1b4 [ 218.552884][ T6762] vfs_get_tree+0x90/0x274 [ 218.553579][ T6762] do_new_mount+0x228/0x810 [ 218.554254][ T6762] path_mount+0x5b4/0x1000 [ 218.554905][ T6762] __arm64_sys_mount+0x514/0x5e4 [ 218.555592][ T6762] invoke_syscall+0x98/0x2b8 [ 218.556259][ T6762] el0_svc_common+0x138/0x258 [ 218.556956][ T6762] do_el0_svc+0x58/0x14c [ 218.557552][ T6762] el0_svc+0x78/0x1e0 [ 218.558085][ T6762] el0t_64_sync_handler+0xcc/0xe4 [ 218.558801][ T6762] el0t_64_sync+0x1a0/0x1a4 [ 218.560544][ T6762] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.562785][ T6762] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.707789][ T6765] loop1: detected capacity change from 0 to 32768 [ 218.716273][ T6765] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.717472][ T6765] CPU: 0 PID: 6765 Comm: syz.1.561 Not tainted syzkaller #0 [ 218.718605][ T6765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 218.720102][ T6765] Call trace: [ 218.720607][ T6765] dump_backtrace+0x0/0x43c [ 218.721368][ T6765] show_stack+0x2c/0x3c [ 218.722013][ T6765] __dump_stack+0x30/0x40 [ 218.722745][ T6765] dump_stack_lvl+0xf8/0x160 [ 218.723402][ T6765] dump_stack+0x1c/0x5c [ 218.723998][ T6765] sysfs_create_dir_ns+0x22c/0x24c [ 218.724747][ T6765] kobject_add_internal+0x590/0xc54 [ 218.725498][ T6765] kobject_init_and_add+0x118/0x17c [ 218.726242][ T6765] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.726936][ T6765] gfs2_fill_super+0xdac/0x19e0 [ 218.727626][ T6765] get_tree_bdev+0x358/0x544 [ 218.728215][ T6765] gfs2_get_tree+0x54/0x1b4 [ 218.728970][ T6765] vfs_get_tree+0x90/0x274 [ 218.729667][ T6765] do_new_mount+0x228/0x810 [ 218.730360][ T6765] path_mount+0x5b4/0x1000 [ 218.731107][ T6765] __arm64_sys_mount+0x514/0x5e4 [ 218.731821][ T6765] invoke_syscall+0x98/0x2b8 [ 218.732500][ T6765] el0_svc_common+0x138/0x258 [ 218.733139][ T6765] do_el0_svc+0x58/0x14c [ 218.733725][ T6765] el0_svc+0x78/0x1e0 [ 218.734286][ T6765] el0t_64_sync_handler+0xcc/0xe4 [ 218.735022][ T6765] el0t_64_sync+0x1a0/0x1a4 [ 218.736261][ T6765] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.738113][ T6765] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.892718][ T6768] loop1: detected capacity change from 0 to 32768 [ 218.974002][ T6768] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.975184][ T6768] CPU: 0 PID: 6768 Comm: syz.1.562 Not tainted syzkaller #0 [ 218.976314][ T6768] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 218.977776][ T6768] Call trace: [ 218.978252][ T6768] dump_backtrace+0x0/0x43c [ 218.978825][ T6768] show_stack+0x2c/0x3c [ 218.979447][ T6768] __dump_stack+0x30/0x40 [ 218.980042][ T6768] dump_stack_lvl+0xf8/0x160 [ 218.980700][ T6768] dump_stack+0x1c/0x5c [ 218.981276][ T6768] sysfs_create_dir_ns+0x22c/0x24c [ 218.982049][ T6768] kobject_add_internal+0x590/0xc54 [ 218.982769][ T6768] kobject_init_and_add+0x118/0x17c [ 218.983492][ T6768] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.984253][ T6768] gfs2_fill_super+0xdac/0x19e0 [ 218.985009][ T6768] get_tree_bdev+0x358/0x544 [ 218.985708][ T6768] gfs2_get_tree+0x54/0x1b4 [ 218.986383][ T6768] vfs_get_tree+0x90/0x274 [ 218.987009][ T6768] do_new_mount+0x228/0x810 [ 218.987665][ T6768] path_mount+0x5b4/0x1000 [ 218.988325][ T6768] __arm64_sys_mount+0x514/0x5e4 [ 218.989027][ T6768] invoke_syscall+0x98/0x2b8 [ 218.989690][ T6768] el0_svc_common+0x138/0x258 [ 218.990314][ T6768] do_el0_svc+0x58/0x14c [ 218.990968][ T6768] el0_svc+0x78/0x1e0 [ 218.991632][ T6768] el0t_64_sync_handler+0xcc/0xe4 [ 218.992477][ T6768] el0t_64_sync+0x1a0/0x1a4 [ 218.994234][ T6768] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.996055][ T6768] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.189676][ T6771] loop1: detected capacity change from 0 to 32768 [ 219.238347][ T6771] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.239670][ T6771] CPU: 0 PID: 6771 Comm: syz.1.563 Not tainted syzkaller #0 [ 219.240758][ T6771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 219.242335][ T6771] Call trace: [ 219.242863][ T6771] dump_backtrace+0x0/0x43c [ 219.243576][ T6771] show_stack+0x2c/0x3c [ 219.244317][ T6771] __dump_stack+0x30/0x40 [ 219.244982][ T6771] dump_stack_lvl+0xf8/0x160 [ 219.245623][ T6771] dump_stack+0x1c/0x5c [ 219.246170][ T6771] sysfs_create_dir_ns+0x22c/0x24c [ 219.246988][ T6771] kobject_add_internal+0x590/0xc54 [ 219.247755][ T6771] kobject_init_and_add+0x118/0x17c [ 219.248510][ T6771] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.249229][ T6771] gfs2_fill_super+0xdac/0x19e0 [ 219.249972][ T6771] get_tree_bdev+0x358/0x544 [ 219.250679][ T6771] gfs2_get_tree+0x54/0x1b4 [ 219.251337][ T6771] vfs_get_tree+0x90/0x274 [ 219.251949][ T6771] do_new_mount+0x228/0x810 [ 219.252611][ T6771] path_mount+0x5b4/0x1000 [ 219.253235][ T6771] __arm64_sys_mount+0x514/0x5e4 [ 219.253937][ T6771] invoke_syscall+0x98/0x2b8 [ 219.254632][ T6771] el0_svc_common+0x138/0x258 [ 219.255296][ T6771] do_el0_svc+0x58/0x14c [ 219.255943][ T6771] el0_svc+0x78/0x1e0 [ 219.256577][ T6771] el0t_64_sync_handler+0xcc/0xe4 [ 219.257369][ T6771] el0t_64_sync+0x1a0/0x1a4 [ 219.259628][ T6771] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.261949][ T6771] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.401280][ T6774] loop1: detected capacity change from 0 to 32768 [ 219.453663][ T6774] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.454988][ T6774] CPU: 1 PID: 6774 Comm: syz.1.564 Not tainted syzkaller #0 [ 219.456143][ T6774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 219.457712][ T6774] Call trace: [ 219.458239][ T6774] dump_backtrace+0x0/0x43c [ 219.458902][ T6774] show_stack+0x2c/0x3c [ 219.459584][ T6774] __dump_stack+0x30/0x40 [ 219.460189][ T6774] dump_stack_lvl+0xf8/0x160 [ 219.460868][ T6774] dump_stack+0x1c/0x5c [ 219.461549][ T6774] sysfs_create_dir_ns+0x22c/0x24c [ 219.462356][ T6774] kobject_add_internal+0x590/0xc54 [ 219.463161][ T6774] kobject_init_and_add+0x118/0x17c [ 219.463908][ T6774] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.464622][ T6774] gfs2_fill_super+0xdac/0x19e0 [ 219.465347][ T6774] get_tree_bdev+0x358/0x544 [ 219.466080][ T6774] gfs2_get_tree+0x54/0x1b4 [ 219.466791][ T6774] vfs_get_tree+0x90/0x274 [ 219.467474][ T6774] do_new_mount+0x228/0x810 [ 219.468157][ T6774] path_mount+0x5b4/0x1000 [ 219.468873][ T6774] __arm64_sys_mount+0x514/0x5e4 [ 219.469651][ T6774] invoke_syscall+0x98/0x2b8 [ 219.470347][ T6774] el0_svc_common+0x138/0x258 [ 219.471039][ T6774] do_el0_svc+0x58/0x14c [ 219.471676][ T6774] el0_svc+0x78/0x1e0 [ 219.472273][ T6774] el0t_64_sync_handler+0xcc/0xe4 [ 219.473017][ T6774] el0t_64_sync+0x1a0/0x1a4 [ 219.475597][ T6774] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.477722][ T6774] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.714786][ T6777] loop1: detected capacity change from 0 to 32768 [ 219.753697][ T6777] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.759417][ T6777] CPU: 1 PID: 6777 Comm: syz.1.565 Not tainted syzkaller #0 [ 219.760549][ T6777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 219.762045][ T6777] Call trace: [ 219.762562][ T6777] dump_backtrace+0x0/0x43c [ 219.763242][ T6777] show_stack+0x2c/0x3c [ 219.763865][ T6777] __dump_stack+0x30/0x40 [ 219.764539][ T6777] dump_stack_lvl+0xf8/0x160 [ 219.765255][ T6777] dump_stack+0x1c/0x5c [ 219.765918][ T6777] sysfs_create_dir_ns+0x22c/0x24c [ 219.766644][ T6777] kobject_add_internal+0x590/0xc54 [ 219.767323][ T6777] kobject_init_and_add+0x118/0x17c [ 219.768118][ T6777] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.768788][ T6777] gfs2_fill_super+0xdac/0x19e0 [ 219.769422][ T6777] get_tree_bdev+0x358/0x544 [ 219.770105][ T6777] gfs2_get_tree+0x54/0x1b4 [ 219.770766][ T6777] vfs_get_tree+0x90/0x274 [ 219.771395][ T6777] do_new_mount+0x228/0x810 [ 219.772036][ T6777] path_mount+0x5b4/0x1000 [ 219.772682][ T6777] __arm64_sys_mount+0x514/0x5e4 [ 219.773427][ T6777] invoke_syscall+0x98/0x2b8 [ 219.774133][ T6777] el0_svc_common+0x138/0x258 [ 219.774827][ T6777] do_el0_svc+0x58/0x14c [ 219.775525][ T6777] el0_svc+0x78/0x1e0 [ 219.776121][ T6777] el0t_64_sync_handler+0xcc/0xe4 [ 219.776877][ T6777] el0t_64_sync+0x1a0/0x1a4 [ 219.779229][ T6777] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.781086][ T6777] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.913678][ T6780] loop1: detected capacity change from 0 to 32768 [ 219.963103][ T6780] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.964403][ T6780] CPU: 0 PID: 6780 Comm: syz.1.566 Not tainted syzkaller #0 [ 219.965512][ T6780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 219.967040][ T6780] Call trace: [ 219.967556][ T6780] dump_backtrace+0x0/0x43c [ 219.968256][ T6780] show_stack+0x2c/0x3c [ 219.968908][ T6780] __dump_stack+0x30/0x40 [ 219.969504][ T6780] dump_stack_lvl+0xf8/0x160 [ 219.970225][ T6780] dump_stack+0x1c/0x5c [ 219.970813][ T6780] sysfs_create_dir_ns+0x22c/0x24c [ 219.971596][ T6780] kobject_add_internal+0x590/0xc54 [ 219.972362][ T6780] kobject_init_and_add+0x118/0x17c [ 219.973164][ T6780] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.973898][ T6780] gfs2_fill_super+0xdac/0x19e0 [ 219.974624][ T6780] get_tree_bdev+0x358/0x544 [ 219.975280][ T6780] gfs2_get_tree+0x54/0x1b4 [ 219.975966][ T6780] vfs_get_tree+0x90/0x274 [ 219.976706][ T6780] do_new_mount+0x228/0x810 [ 219.977410][ T6780] path_mount+0x5b4/0x1000 [ 219.978062][ T6780] __arm64_sys_mount+0x514/0x5e4 [ 219.978774][ T6780] invoke_syscall+0x98/0x2b8 [ 219.979464][ T6780] el0_svc_common+0x138/0x258 [ 219.980174][ T6780] do_el0_svc+0x58/0x14c [ 219.980857][ T6780] el0_svc+0x78/0x1e0 [ 219.981400][ T6780] el0t_64_sync_handler+0xcc/0xe4 [ 219.982139][ T6780] el0t_64_sync+0x1a0/0x1a4 [ 219.983823][ T6780] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.985748][ T6780] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.123016][ T6783] loop1: detected capacity change from 0 to 32768 [ 220.182101][ T4144] Bluetooth: hci1: command 0x0406 tx timeout [ 220.206553][ T6783] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.207829][ T6783] CPU: 0 PID: 6783 Comm: syz.1.567 Not tainted syzkaller #0 [ 220.209052][ T6783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 220.210680][ T6783] Call trace: [ 220.211189][ T6783] dump_backtrace+0x0/0x43c [ 220.211837][ T6783] show_stack+0x2c/0x3c [ 220.212414][ T6783] __dump_stack+0x30/0x40 [ 220.213054][ T6783] dump_stack_lvl+0xf8/0x160 [ 220.213708][ T6783] dump_stack+0x1c/0x5c [ 220.214295][ T6783] sysfs_create_dir_ns+0x22c/0x24c [ 220.215091][ T6783] kobject_add_internal+0x590/0xc54 [ 220.215881][ T6783] kobject_init_and_add+0x118/0x17c [ 220.216623][ T6783] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.217321][ T6783] gfs2_fill_super+0xdac/0x19e0 [ 220.218035][ T6783] get_tree_bdev+0x358/0x544 [ 220.218708][ T6783] gfs2_get_tree+0x54/0x1b4 [ 220.219393][ T6783] vfs_get_tree+0x90/0x274 [ 220.220022][ T6783] do_new_mount+0x228/0x810 [ 220.220688][ T6783] path_mount+0x5b4/0x1000 [ 220.221329][ T6783] __arm64_sys_mount+0x514/0x5e4 [ 220.221974][ T6783] invoke_syscall+0x98/0x2b8 [ 220.222627][ T6783] el0_svc_common+0x138/0x258 [ 220.223286][ T6783] do_el0_svc+0x58/0x14c [ 220.223910][ T6783] el0_svc+0x78/0x1e0 [ 220.224490][ T6783] el0t_64_sync_handler+0xcc/0xe4 [ 220.225272][ T6783] el0t_64_sync+0x1a0/0x1a4 [ 220.226782][ T6783] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.229193][ T6783] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.368745][ T6786] loop1: detected capacity change from 0 to 32768 [ 220.377648][ T6786] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.378869][ T6786] CPU: 0 PID: 6786 Comm: syz.1.568 Not tainted syzkaller #0 [ 220.380039][ T6786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 220.381529][ T6786] Call trace: [ 220.382016][ T6786] dump_backtrace+0x0/0x43c [ 220.382699][ T6786] show_stack+0x2c/0x3c [ 220.383315][ T6786] __dump_stack+0x30/0x40 [ 220.384006][ T6786] dump_stack_lvl+0xf8/0x160 [ 220.384617][ T6786] dump_stack+0x1c/0x5c [ 220.385247][ T6786] sysfs_create_dir_ns+0x22c/0x24c [ 220.385927][ T6786] kobject_add_internal+0x590/0xc54 [ 220.386725][ T6786] kobject_init_and_add+0x118/0x17c [ 220.387470][ T6786] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.388146][ T6786] gfs2_fill_super+0xdac/0x19e0 [ 220.388908][ T6786] get_tree_bdev+0x358/0x544 [ 220.389590][ T6786] gfs2_get_tree+0x54/0x1b4 [ 220.390244][ T6786] vfs_get_tree+0x90/0x274 [ 220.390916][ T6786] do_new_mount+0x228/0x810 [ 220.391622][ T6786] path_mount+0x5b4/0x1000 [ 220.392308][ T6786] __arm64_sys_mount+0x514/0x5e4 [ 220.393020][ T6786] invoke_syscall+0x98/0x2b8 [ 220.393702][ T6786] el0_svc_common+0x138/0x258 [ 220.394408][ T6786] do_el0_svc+0x58/0x14c [ 220.395061][ T6786] el0_svc+0x78/0x1e0 [ 220.395680][ T6786] el0t_64_sync_handler+0xcc/0xe4 [ 220.396416][ T6786] el0t_64_sync+0x1a0/0x1a4 [ 220.399465][ T6786] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.401622][ T6786] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.596726][ T6789] loop1: detected capacity change from 0 to 32768 [ 220.644043][ T6789] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.645390][ T6789] CPU: 0 PID: 6789 Comm: syz.1.569 Not tainted syzkaller #0 [ 220.646473][ T6789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 220.647992][ T6789] Call trace: [ 220.648498][ T6789] dump_backtrace+0x0/0x43c [ 220.649193][ T6789] show_stack+0x2c/0x3c [ 220.649809][ T6789] __dump_stack+0x30/0x40 [ 220.650466][ T6789] dump_stack_lvl+0xf8/0x160 [ 220.651094][ T6789] dump_stack+0x1c/0x5c [ 220.651724][ T6789] sysfs_create_dir_ns+0x22c/0x24c [ 220.652481][ T6789] kobject_add_internal+0x590/0xc54 [ 220.653216][ T6789] kobject_init_and_add+0x118/0x17c [ 220.653944][ T6789] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.654582][ T6789] gfs2_fill_super+0xdac/0x19e0 [ 220.655319][ T6789] get_tree_bdev+0x358/0x544 [ 220.655954][ T6789] gfs2_get_tree+0x54/0x1b4 [ 220.656590][ T6789] vfs_get_tree+0x90/0x274 [ 220.657242][ T6789] do_new_mount+0x228/0x810 [ 220.657959][ T6789] path_mount+0x5b4/0x1000 [ 220.658572][ T6789] __arm64_sys_mount+0x514/0x5e4 [ 220.659303][ T6789] invoke_syscall+0x98/0x2b8 [ 220.659982][ T6789] el0_svc_common+0x138/0x258 [ 220.660650][ T6789] do_el0_svc+0x58/0x14c [ 220.661302][ T6789] el0_svc+0x78/0x1e0 [ 220.661973][ T6789] el0t_64_sync_handler+0xcc/0xe4 [ 220.662735][ T6789] el0t_64_sync+0x1a0/0x1a4 [ 220.666992][ T6789] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.668920][ T6789] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.809148][ T6792] loop1: detected capacity change from 0 to 32768 [ 220.817153][ T6792] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.818280][ T6792] CPU: 0 PID: 6792 Comm: syz.1.570 Not tainted syzkaller #0 [ 220.819328][ T6792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 220.820831][ T6792] Call trace: [ 220.821349][ T6792] dump_backtrace+0x0/0x43c [ 220.822035][ T6792] show_stack+0x2c/0x3c [ 220.822669][ T6792] __dump_stack+0x30/0x40 [ 220.823324][ T6792] dump_stack_lvl+0xf8/0x160 [ 220.823971][ T6792] dump_stack+0x1c/0x5c [ 220.824608][ T6792] sysfs_create_dir_ns+0x22c/0x24c [ 220.825368][ T6792] kobject_add_internal+0x590/0xc54 [ 220.826140][ T6792] kobject_init_and_add+0x118/0x17c [ 220.826893][ T6792] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.827563][ T6792] gfs2_fill_super+0xdac/0x19e0 [ 220.828280][ T6792] get_tree_bdev+0x358/0x544 [ 220.828954][ T6792] gfs2_get_tree+0x54/0x1b4 [ 220.829611][ T6792] vfs_get_tree+0x90/0x274 [ 220.830266][ T6792] do_new_mount+0x228/0x810 [ 220.830978][ T6792] path_mount+0x5b4/0x1000 [ 220.831648][ T6792] __arm64_sys_mount+0x514/0x5e4 [ 220.832381][ T6792] invoke_syscall+0x98/0x2b8 [ 220.833089][ T6792] el0_svc_common+0x138/0x258 [ 220.833749][ T6792] do_el0_svc+0x58/0x14c [ 220.834384][ T6792] el0_svc+0x78/0x1e0 [ 220.834943][ T6792] el0t_64_sync_handler+0xcc/0xe4 [ 220.835677][ T6792] el0t_64_sync+0x1a0/0x1a4 [ 220.836427][ T6792] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.838373][ T6792] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.042846][ T6795] loop1: detected capacity change from 0 to 32768 [ 221.086959][ T6795] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.088217][ T6795] CPU: 1 PID: 6795 Comm: syz.1.571 Not tainted syzkaller #0 [ 221.089289][ T6795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 221.090781][ T6795] Call trace: [ 221.091261][ T6795] dump_backtrace+0x0/0x43c [ 221.091997][ T6795] show_stack+0x2c/0x3c [ 221.092620][ T6795] __dump_stack+0x30/0x40 [ 221.093294][ T6795] dump_stack_lvl+0xf8/0x160 [ 221.093988][ T6795] dump_stack+0x1c/0x5c [ 221.094611][ T6795] sysfs_create_dir_ns+0x22c/0x24c [ 221.095376][ T6795] kobject_add_internal+0x590/0xc54 [ 221.096112][ T6795] kobject_init_and_add+0x118/0x17c [ 221.096841][ T6795] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.097547][ T6795] gfs2_fill_super+0xdac/0x19e0 [ 221.098233][ T6795] get_tree_bdev+0x358/0x544 [ 221.098901][ T6795] gfs2_get_tree+0x54/0x1b4 [ 221.099526][ T6795] vfs_get_tree+0x90/0x274 [ 221.100180][ T6795] do_new_mount+0x228/0x810 [ 221.100855][ T6795] path_mount+0x5b4/0x1000 [ 221.101491][ T6795] __arm64_sys_mount+0x514/0x5e4 [ 221.102209][ T6795] invoke_syscall+0x98/0x2b8 [ 221.102968][ T6795] el0_svc_common+0x138/0x258 [ 221.103662][ T6795] do_el0_svc+0x58/0x14c [ 221.104383][ T6795] el0_svc+0x78/0x1e0 [ 221.104976][ T6795] el0t_64_sync_handler+0xcc/0xe4 [ 221.105755][ T6795] el0t_64_sync+0x1a0/0x1a4 [ 221.108333][ T6795] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.110248][ T6795] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:41 executed programs: 558 [ 221.292245][ T6798] loop1: detected capacity change from 0 to 32768 [ 221.347972][ T6798] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.349114][ T6798] CPU: 0 PID: 6798 Comm: syz.1.572 Not tainted syzkaller #0 [ 221.350161][ T6798] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 221.351575][ T6798] Call trace: [ 221.352040][ T6798] dump_backtrace+0x0/0x43c [ 221.352748][ T6798] show_stack+0x2c/0x3c [ 221.353371][ T6798] __dump_stack+0x30/0x40 [ 221.354027][ T6798] dump_stack_lvl+0xf8/0x160 [ 221.354719][ T6798] dump_stack+0x1c/0x5c [ 221.355330][ T6798] sysfs_create_dir_ns+0x22c/0x24c [ 221.356050][ T6798] kobject_add_internal+0x590/0xc54 [ 221.356819][ T6798] kobject_init_and_add+0x118/0x17c [ 221.357639][ T6798] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.358334][ T6798] gfs2_fill_super+0xdac/0x19e0 [ 221.359122][ T6798] get_tree_bdev+0x358/0x544 [ 221.359949][ T6798] gfs2_get_tree+0x54/0x1b4 [ 221.360722][ T6798] vfs_get_tree+0x90/0x274 [ 221.361436][ T6798] do_new_mount+0x228/0x810 [ 221.362131][ T6798] path_mount+0x5b4/0x1000 [ 221.362809][ T6798] __arm64_sys_mount+0x514/0x5e4 [ 221.363502][ T6798] invoke_syscall+0x98/0x2b8 [ 221.364169][ T6798] el0_svc_common+0x138/0x258 [ 221.364885][ T6798] do_el0_svc+0x58/0x14c [ 221.365469][ T6798] el0_svc+0x78/0x1e0 [ 221.366053][ T6798] el0t_64_sync_handler+0xcc/0xe4 [ 221.366827][ T6798] el0t_64_sync+0x1a0/0x1a4 [ 221.367640][ T6798] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.369518][ T6798] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.507103][ T6801] loop1: detected capacity change from 0 to 32768 [ 221.535081][ T6801] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.536322][ T6801] CPU: 1 PID: 6801 Comm: syz.1.573 Not tainted syzkaller #0 [ 221.537475][ T6801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 221.539072][ T6801] Call trace: [ 221.539541][ T6801] dump_backtrace+0x0/0x43c [ 221.540236][ T6801] show_stack+0x2c/0x3c [ 221.540834][ T6801] __dump_stack+0x30/0x40 [ 221.541481][ T6801] dump_stack_lvl+0xf8/0x160 [ 221.542196][ T6801] dump_stack+0x1c/0x5c [ 221.542773][ T6801] sysfs_create_dir_ns+0x22c/0x24c [ 221.543550][ T6801] kobject_add_internal+0x590/0xc54 [ 221.544394][ T6801] kobject_init_and_add+0x118/0x17c [ 221.545203][ T6801] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.545899][ T6801] gfs2_fill_super+0xdac/0x19e0 [ 221.546639][ T6801] get_tree_bdev+0x358/0x544 [ 221.547343][ T6801] gfs2_get_tree+0x54/0x1b4 [ 221.548005][ T6801] vfs_get_tree+0x90/0x274 [ 221.548682][ T6801] do_new_mount+0x228/0x810 [ 221.549354][ T6801] path_mount+0x5b4/0x1000 [ 221.550134][ T6801] __arm64_sys_mount+0x514/0x5e4 [ 221.550959][ T6801] invoke_syscall+0x98/0x2b8 [ 221.551719][ T6801] el0_svc_common+0x138/0x258 [ 221.552447][ T6801] do_el0_svc+0x58/0x14c [ 221.553108][ T6801] el0_svc+0x78/0x1e0 [ 221.553754][ T6801] el0t_64_sync_handler+0xcc/0xe4 [ 221.554540][ T6801] el0t_64_sync+0x1a0/0x1a4 [ 221.556063][ T6801] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.558096][ T6801] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.700768][ T6804] loop1: detected capacity change from 0 to 32768 [ 221.709360][ T6804] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.710571][ T6804] CPU: 1 PID: 6804 Comm: syz.1.574 Not tainted syzkaller #0 [ 221.711643][ T6804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 221.713187][ T6804] Call trace: [ 221.713656][ T6804] dump_backtrace+0x0/0x43c [ 221.714412][ T6804] show_stack+0x2c/0x3c [ 221.715128][ T6804] __dump_stack+0x30/0x40 [ 221.715855][ T6804] dump_stack_lvl+0xf8/0x160 [ 221.716599][ T6804] dump_stack+0x1c/0x5c [ 221.717275][ T6804] sysfs_create_dir_ns+0x22c/0x24c [ 221.718028][ T6804] kobject_add_internal+0x590/0xc54 [ 221.718826][ T6804] kobject_init_and_add+0x118/0x17c [ 221.719644][ T6804] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.720349][ T6804] gfs2_fill_super+0xdac/0x19e0 [ 221.721062][ T6804] get_tree_bdev+0x358/0x544 [ 221.721742][ T6804] gfs2_get_tree+0x54/0x1b4 [ 221.722428][ T6804] vfs_get_tree+0x90/0x274 [ 221.723076][ T6804] do_new_mount+0x228/0x810 [ 221.723747][ T6804] path_mount+0x5b4/0x1000 [ 221.724393][ T6804] __arm64_sys_mount+0x514/0x5e4 [ 221.725150][ T6804] invoke_syscall+0x98/0x2b8 [ 221.725827][ T6804] el0_svc_common+0x138/0x258 [ 221.726547][ T6804] do_el0_svc+0x58/0x14c [ 221.727148][ T6804] el0_svc+0x78/0x1e0 [ 221.727705][ T6804] el0t_64_sync_handler+0xcc/0xe4 [ 221.728423][ T6804] el0t_64_sync+0x1a0/0x1a4 [ 221.731279][ T6804] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.733505][ T6804] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.866039][ T6807] loop1: detected capacity change from 0 to 32768 [ 221.903257][ T6807] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.904441][ T6807] CPU: 0 PID: 6807 Comm: syz.1.575 Not tainted syzkaller #0 [ 221.905591][ T6807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 221.907191][ T6807] Call trace: [ 221.907686][ T6807] dump_backtrace+0x0/0x43c [ 221.908385][ T6807] show_stack+0x2c/0x3c [ 221.909098][ T6807] __dump_stack+0x30/0x40 [ 221.909847][ T6807] dump_stack_lvl+0xf8/0x160 [ 221.910580][ T6807] dump_stack+0x1c/0x5c [ 221.911288][ T6807] sysfs_create_dir_ns+0x22c/0x24c [ 221.912062][ T6807] kobject_add_internal+0x590/0xc54 [ 221.912829][ T6807] kobject_init_and_add+0x118/0x17c [ 221.913629][ T6807] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.914437][ T6807] gfs2_fill_super+0xdac/0x19e0 [ 221.915161][ T6807] get_tree_bdev+0x358/0x544 [ 221.915867][ T6807] gfs2_get_tree+0x54/0x1b4 [ 221.916562][ T6807] vfs_get_tree+0x90/0x274 [ 221.917280][ T6807] do_new_mount+0x228/0x810 [ 221.918041][ T6807] path_mount+0x5b4/0x1000 [ 221.918689][ T6807] __arm64_sys_mount+0x514/0x5e4 [ 221.919342][ T6807] invoke_syscall+0x98/0x2b8 [ 221.920026][ T6807] el0_svc_common+0x138/0x258 [ 221.920736][ T6807] do_el0_svc+0x58/0x14c [ 221.921350][ T6807] el0_svc+0x78/0x1e0 [ 221.921916][ T6807] el0t_64_sync_handler+0xcc/0xe4 [ 221.922791][ T6807] el0t_64_sync+0x1a0/0x1a4 [ 221.924018][ T6807] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.926076][ T6807] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.114813][ T6810] loop1: detected capacity change from 0 to 32768 [ 222.163240][ T6810] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.164565][ T6810] CPU: 0 PID: 6810 Comm: syz.1.576 Not tainted syzkaller #0 [ 222.165664][ T6810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 222.167339][ T6810] Call trace: [ 222.167771][ T6810] dump_backtrace+0x0/0x43c [ 222.168414][ T6810] show_stack+0x2c/0x3c [ 222.168993][ T6810] __dump_stack+0x30/0x40 [ 222.169585][ T6810] dump_stack_lvl+0xf8/0x160 [ 222.170244][ T6810] dump_stack+0x1c/0x5c [ 222.170819][ T6810] sysfs_create_dir_ns+0x22c/0x24c [ 222.171592][ T6810] kobject_add_internal+0x590/0xc54 [ 222.172339][ T6810] kobject_init_and_add+0x118/0x17c [ 222.173184][ T6810] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.173891][ T6810] gfs2_fill_super+0xdac/0x19e0 [ 222.174666][ T6810] get_tree_bdev+0x358/0x544 [ 222.175389][ T6810] gfs2_get_tree+0x54/0x1b4 [ 222.176083][ T6810] vfs_get_tree+0x90/0x274 [ 222.176762][ T6810] do_new_mount+0x228/0x810 [ 222.177394][ T6810] path_mount+0x5b4/0x1000 [ 222.177999][ T6810] __arm64_sys_mount+0x514/0x5e4 [ 222.178690][ T6810] invoke_syscall+0x98/0x2b8 [ 222.179346][ T6810] el0_svc_common+0x138/0x258 [ 222.180046][ T6810] do_el0_svc+0x58/0x14c [ 222.180682][ T6810] el0_svc+0x78/0x1e0 [ 222.181355][ T6810] el0t_64_sync_handler+0xcc/0xe4 [ 222.182076][ T6810] el0t_64_sync+0x1a0/0x1a4 [ 222.183006][ T6810] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.184963][ T6810] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.322529][ T6813] loop1: detected capacity change from 0 to 32768 [ 222.374886][ T6813] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.376340][ T6813] CPU: 0 PID: 6813 Comm: syz.1.577 Not tainted syzkaller #0 [ 222.377405][ T6813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 222.378712][ T6813] Call trace: [ 222.379124][ T6813] dump_backtrace+0x0/0x43c [ 222.379744][ T6813] show_stack+0x2c/0x3c [ 222.380306][ T6813] __dump_stack+0x30/0x40 [ 222.380871][ T6813] dump_stack_lvl+0xf8/0x160 [ 222.381536][ T6813] dump_stack+0x1c/0x5c [ 222.382122][ T6813] sysfs_create_dir_ns+0x22c/0x24c [ 222.382881][ T6813] kobject_add_internal+0x590/0xc54 [ 222.383637][ T6813] kobject_init_and_add+0x118/0x17c [ 222.384406][ T6813] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.385084][ T6813] gfs2_fill_super+0xdac/0x19e0 [ 222.385805][ T6813] get_tree_bdev+0x358/0x544 [ 222.386446][ T6813] gfs2_get_tree+0x54/0x1b4 [ 222.387085][ T6813] vfs_get_tree+0x90/0x274 [ 222.387719][ T6813] do_new_mount+0x228/0x810 [ 222.388355][ T6813] path_mount+0x5b4/0x1000 [ 222.389007][ T6813] __arm64_sys_mount+0x514/0x5e4 [ 222.389795][ T6813] invoke_syscall+0x98/0x2b8 [ 222.390506][ T6813] el0_svc_common+0x138/0x258 [ 222.391208][ T6813] do_el0_svc+0x58/0x14c [ 222.391842][ T6813] el0_svc+0x78/0x1e0 [ 222.392426][ T6813] el0t_64_sync_handler+0xcc/0xe4 [ 222.393153][ T6813] el0t_64_sync+0x1a0/0x1a4 [ 222.393893][ T6813] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.396843][ T6813] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.540053][ T6816] loop1: detected capacity change from 0 to 32768 [ 222.573279][ T6816] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.575050][ T6816] CPU: 0 PID: 6816 Comm: syz.1.578 Not tainted syzkaller #0 [ 222.576091][ T6816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 222.577569][ T6816] Call trace: [ 222.578045][ T6816] dump_backtrace+0x0/0x43c [ 222.578705][ T6816] show_stack+0x2c/0x3c [ 222.579321][ T6816] __dump_stack+0x30/0x40 [ 222.579926][ T6816] dump_stack_lvl+0xf8/0x160 [ 222.580580][ T6816] dump_stack+0x1c/0x5c [ 222.581190][ T6816] sysfs_create_dir_ns+0x22c/0x24c [ 222.581925][ T6816] kobject_add_internal+0x590/0xc54 [ 222.582752][ T6816] kobject_init_and_add+0x118/0x17c [ 222.583549][ T6816] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.584239][ T6816] gfs2_fill_super+0xdac/0x19e0 [ 222.584978][ T6816] get_tree_bdev+0x358/0x544 [ 222.585684][ T6816] gfs2_get_tree+0x54/0x1b4 [ 222.586346][ T6816] vfs_get_tree+0x90/0x274 [ 222.586951][ T6816] do_new_mount+0x228/0x810 [ 222.587637][ T6816] path_mount+0x5b4/0x1000 [ 222.588263][ T6816] __arm64_sys_mount+0x514/0x5e4 [ 222.588949][ T6816] invoke_syscall+0x98/0x2b8 [ 222.589605][ T6816] el0_svc_common+0x138/0x258 [ 222.590278][ T6816] do_el0_svc+0x58/0x14c [ 222.590908][ T6816] el0_svc+0x78/0x1e0 [ 222.591523][ T6816] el0t_64_sync_handler+0xcc/0xe4 [ 222.592270][ T6816] el0t_64_sync+0x1a0/0x1a4 [ 222.594678][ T6816] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.596736][ T6816] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.736765][ T6819] loop1: detected capacity change from 0 to 32768 [ 222.745306][ T6819] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.746457][ T6819] CPU: 1 PID: 6819 Comm: syz.1.579 Not tainted syzkaller #0 [ 222.747535][ T6819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 222.749062][ T6819] Call trace: [ 222.749553][ T6819] dump_backtrace+0x0/0x43c [ 222.750195][ T6819] show_stack+0x2c/0x3c [ 222.750814][ T6819] __dump_stack+0x30/0x40 [ 222.751478][ T6819] dump_stack_lvl+0xf8/0x160 [ 222.752138][ T6819] dump_stack+0x1c/0x5c [ 222.752795][ T6819] sysfs_create_dir_ns+0x22c/0x24c [ 222.753572][ T6819] kobject_add_internal+0x590/0xc54 [ 222.754302][ T6819] kobject_init_and_add+0x118/0x17c [ 222.755065][ T6819] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.755790][ T6819] gfs2_fill_super+0xdac/0x19e0 [ 222.756455][ T6819] get_tree_bdev+0x358/0x544 [ 222.757179][ T6819] gfs2_get_tree+0x54/0x1b4 [ 222.757831][ T6819] vfs_get_tree+0x90/0x274 [ 222.758502][ T6819] do_new_mount+0x228/0x810 [ 222.759134][ T6819] path_mount+0x5b4/0x1000 [ 222.759813][ T6819] __arm64_sys_mount+0x514/0x5e4 [ 222.760537][ T6819] invoke_syscall+0x98/0x2b8 [ 222.761189][ T6819] el0_svc_common+0x138/0x258 [ 222.761900][ T6819] do_el0_svc+0x58/0x14c [ 222.762570][ T6819] el0_svc+0x78/0x1e0 [ 222.763206][ T6819] el0t_64_sync_handler+0xcc/0xe4 [ 222.763971][ T6819] el0t_64_sync+0x1a0/0x1a4 [ 222.766024][ T6819] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.767976][ T6819] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.908218][ T6822] loop1: detected capacity change from 0 to 32768 [ 222.916930][ T6822] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.918159][ T6822] CPU: 0 PID: 6822 Comm: syz.1.580 Not tainted syzkaller #0 [ 222.919198][ T6822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 222.920693][ T6822] Call trace: [ 222.921171][ T6822] dump_backtrace+0x0/0x43c [ 222.921870][ T6822] show_stack+0x2c/0x3c [ 222.922487][ T6822] __dump_stack+0x30/0x40 [ 222.923128][ T6822] dump_stack_lvl+0xf8/0x160 [ 222.923809][ T6822] dump_stack+0x1c/0x5c [ 222.924377][ T6822] sysfs_create_dir_ns+0x22c/0x24c [ 222.925085][ T6822] kobject_add_internal+0x590/0xc54 [ 222.925903][ T6822] kobject_init_and_add+0x118/0x17c [ 222.926686][ T6822] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.927354][ T6822] gfs2_fill_super+0xdac/0x19e0 [ 222.928066][ T6822] get_tree_bdev+0x358/0x544 [ 222.928769][ T6822] gfs2_get_tree+0x54/0x1b4 [ 222.929376][ T6822] vfs_get_tree+0x90/0x274 [ 222.930114][ T6822] do_new_mount+0x228/0x810 [ 222.930748][ T6822] path_mount+0x5b4/0x1000 [ 222.931383][ T6822] __arm64_sys_mount+0x514/0x5e4 [ 222.932130][ T6822] invoke_syscall+0x98/0x2b8 [ 222.932843][ T6822] el0_svc_common+0x138/0x258 [ 222.933591][ T6822] do_el0_svc+0x58/0x14c [ 222.934176][ T6822] el0_svc+0x78/0x1e0 [ 222.934714][ T6822] el0t_64_sync_handler+0xcc/0xe4 [ 222.935440][ T6822] el0t_64_sync+0x1a0/0x1a4 [ 222.937531][ T6822] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.939595][ T6822] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.078326][ T6825] loop1: detected capacity change from 0 to 32768 [ 223.123281][ T6825] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.124543][ T6825] CPU: 1 PID: 6825 Comm: syz.1.581 Not tainted syzkaller #0 [ 223.125749][ T6825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 223.127252][ T6825] Call trace: [ 223.127726][ T6825] dump_backtrace+0x0/0x43c [ 223.128388][ T6825] show_stack+0x2c/0x3c [ 223.128987][ T6825] __dump_stack+0x30/0x40 [ 223.129609][ T6825] dump_stack_lvl+0xf8/0x160 [ 223.130292][ T6825] dump_stack+0x1c/0x5c [ 223.130939][ T6825] sysfs_create_dir_ns+0x22c/0x24c [ 223.131725][ T6825] kobject_add_internal+0x590/0xc54 [ 223.132568][ T6825] kobject_init_and_add+0x118/0x17c [ 223.133341][ T6825] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.134110][ T6825] gfs2_fill_super+0xdac/0x19e0 [ 223.134842][ T6825] get_tree_bdev+0x358/0x544 [ 223.135529][ T6825] gfs2_get_tree+0x54/0x1b4 [ 223.136187][ T6825] vfs_get_tree+0x90/0x274 [ 223.136991][ T6825] do_new_mount+0x228/0x810 [ 223.137659][ T6825] path_mount+0x5b4/0x1000 [ 223.138338][ T6825] __arm64_sys_mount+0x514/0x5e4 [ 223.139062][ T6825] invoke_syscall+0x98/0x2b8 [ 223.139804][ T6825] el0_svc_common+0x138/0x258 [ 223.140513][ T6825] do_el0_svc+0x58/0x14c [ 223.141144][ T6825] el0_svc+0x78/0x1e0 [ 223.141726][ T6825] el0t_64_sync_handler+0xcc/0xe4 [ 223.142559][ T6825] el0t_64_sync+0x1a0/0x1a4 [ 223.144263][ T6825] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.146334][ T6825] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.287215][ T6828] loop1: detected capacity change from 0 to 32768 [ 223.295029][ T6828] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.296204][ T6828] CPU: 0 PID: 6828 Comm: syz.1.582 Not tainted syzkaller #0 [ 223.297259][ T6828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 223.298784][ T6828] Call trace: [ 223.299333][ T6828] dump_backtrace+0x0/0x43c [ 223.299989][ T6828] show_stack+0x2c/0x3c [ 223.300668][ T6828] __dump_stack+0x30/0x40 [ 223.301402][ T6828] dump_stack_lvl+0xf8/0x160 [ 223.302104][ T6828] dump_stack+0x1c/0x5c [ 223.302685][ T6828] sysfs_create_dir_ns+0x22c/0x24c [ 223.303448][ T6828] kobject_add_internal+0x590/0xc54 [ 223.304217][ T6828] kobject_init_and_add+0x118/0x17c [ 223.305019][ T6828] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.305770][ T6828] gfs2_fill_super+0xdac/0x19e0 [ 223.306493][ T6828] get_tree_bdev+0x358/0x544 [ 223.307142][ T6828] gfs2_get_tree+0x54/0x1b4 [ 223.307807][ T6828] vfs_get_tree+0x90/0x274 [ 223.308489][ T6828] do_new_mount+0x228/0x810 [ 223.309193][ T6828] path_mount+0x5b4/0x1000 [ 223.309803][ T6828] __arm64_sys_mount+0x514/0x5e4 [ 223.310539][ T6828] invoke_syscall+0x98/0x2b8 [ 223.311141][ T6828] el0_svc_common+0x138/0x258 [ 223.311886][ T6828] do_el0_svc+0x58/0x14c [ 223.312506][ T6828] el0_svc+0x78/0x1e0 [ 223.313070][ T6828] el0t_64_sync_handler+0xcc/0xe4 [ 223.313785][ T6828] el0t_64_sync+0x1a0/0x1a4 [ 223.315980][ T6828] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.318037][ T6828] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.452917][ T6831] loop1: detected capacity change from 0 to 32768 [ 223.556667][ T6831] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.557952][ T6831] CPU: 1 PID: 6831 Comm: syz.1.583 Not tainted syzkaller #0 [ 223.559026][ T6831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 223.560493][ T6831] Call trace: [ 223.560929][ T6831] dump_backtrace+0x0/0x43c [ 223.561649][ T6831] show_stack+0x2c/0x3c [ 223.562311][ T6831] __dump_stack+0x30/0x40 [ 223.562960][ T6831] dump_stack_lvl+0xf8/0x160 [ 223.563611][ T6831] dump_stack+0x1c/0x5c [ 223.564206][ T6831] sysfs_create_dir_ns+0x22c/0x24c [ 223.564974][ T6831] kobject_add_internal+0x590/0xc54 [ 223.565745][ T6831] kobject_init_and_add+0x118/0x17c [ 223.566493][ T6831] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.567197][ T6831] gfs2_fill_super+0xdac/0x19e0 [ 223.567941][ T6831] get_tree_bdev+0x358/0x544 [ 223.568668][ T6831] gfs2_get_tree+0x54/0x1b4 [ 223.569302][ T6831] vfs_get_tree+0x90/0x274 [ 223.569884][ T6831] do_new_mount+0x228/0x810 [ 223.570522][ T6831] path_mount+0x5b4/0x1000 [ 223.571137][ T6831] __arm64_sys_mount+0x514/0x5e4 [ 223.571846][ T6831] invoke_syscall+0x98/0x2b8 [ 223.572467][ T6831] el0_svc_common+0x138/0x258 [ 223.573154][ T6831] do_el0_svc+0x58/0x14c [ 223.573758][ T6831] el0_svc+0x78/0x1e0 [ 223.574312][ T6831] el0t_64_sync_handler+0xcc/0xe4 [ 223.575009][ T6831] el0t_64_sync+0x1a0/0x1a4 [ 223.576517][ T6831] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.578525][ T6831] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.722157][ T6834] loop1: detected capacity change from 0 to 32768 [ 223.767998][ T6834] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.769216][ T6834] CPU: 1 PID: 6834 Comm: syz.1.584 Not tainted syzkaller #0 [ 223.770282][ T6834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 223.771880][ T6834] Call trace: [ 223.772360][ T6834] dump_backtrace+0x0/0x43c [ 223.773042][ T6834] show_stack+0x2c/0x3c [ 223.773645][ T6834] __dump_stack+0x30/0x40 [ 223.774302][ T6834] dump_stack_lvl+0xf8/0x160 [ 223.774993][ T6834] dump_stack+0x1c/0x5c [ 223.775579][ T6834] sysfs_create_dir_ns+0x22c/0x24c [ 223.776379][ T6834] kobject_add_internal+0x590/0xc54 [ 223.777127][ T6834] kobject_init_and_add+0x118/0x17c [ 223.777864][ T6834] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.778575][ T6834] gfs2_fill_super+0xdac/0x19e0 [ 223.779286][ T6834] get_tree_bdev+0x358/0x544 [ 223.779950][ T6834] gfs2_get_tree+0x54/0x1b4 [ 223.780603][ T6834] vfs_get_tree+0x90/0x274 [ 223.781193][ T6834] do_new_mount+0x228/0x810 [ 223.781889][ T6834] path_mount+0x5b4/0x1000 [ 223.782512][ T6834] __arm64_sys_mount+0x514/0x5e4 [ 223.783248][ T6834] invoke_syscall+0x98/0x2b8 [ 223.783894][ T6834] el0_svc_common+0x138/0x258 [ 223.784604][ T6834] do_el0_svc+0x58/0x14c [ 223.785225][ T6834] el0_svc+0x78/0x1e0 [ 223.785817][ T6834] el0t_64_sync_handler+0xcc/0xe4 [ 223.786534][ T6834] el0t_64_sync+0x1a0/0x1a4 [ 223.788813][ T6834] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.790700][ T6834] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.935850][ T6837] loop1: detected capacity change from 0 to 32768 [ 223.943558][ T6837] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.944788][ T6837] CPU: 0 PID: 6837 Comm: syz.1.585 Not tainted syzkaller #0 [ 223.945988][ T6837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 223.947699][ T6837] Call trace: [ 223.948238][ T6837] dump_backtrace+0x0/0x43c [ 223.949008][ T6837] show_stack+0x2c/0x3c [ 223.949717][ T6837] __dump_stack+0x30/0x40 [ 223.950433][ T6837] dump_stack_lvl+0xf8/0x160 [ 223.951160][ T6837] dump_stack+0x1c/0x5c [ 223.951820][ T6837] sysfs_create_dir_ns+0x22c/0x24c [ 223.952645][ T6837] kobject_add_internal+0x590/0xc54 [ 223.953408][ T6837] kobject_init_and_add+0x118/0x17c [ 223.954190][ T6837] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.954973][ T6837] gfs2_fill_super+0xdac/0x19e0 [ 223.955757][ T6837] get_tree_bdev+0x358/0x544 [ 223.956448][ T6837] gfs2_get_tree+0x54/0x1b4 [ 223.957101][ T6837] vfs_get_tree+0x90/0x274 [ 223.957803][ T6837] do_new_mount+0x228/0x810 [ 223.958444][ T6837] path_mount+0x5b4/0x1000 [ 223.959102][ T6837] __arm64_sys_mount+0x514/0x5e4 [ 223.959912][ T6837] invoke_syscall+0x98/0x2b8 [ 223.960615][ T6837] el0_svc_common+0x138/0x258 [ 223.961342][ T6837] do_el0_svc+0x58/0x14c [ 223.961990][ T6837] el0_svc+0x78/0x1e0 [ 223.962635][ T6837] el0t_64_sync_handler+0xcc/0xe4 [ 223.963488][ T6837] el0t_64_sync+0x1a0/0x1a4 [ 223.965807][ T6837] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.967788][ T6837] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.106717][ T6840] loop1: detected capacity change from 0 to 32768 [ 224.157545][ T6840] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.158822][ T6840] CPU: 0 PID: 6840 Comm: syz.1.586 Not tainted syzkaller #0 [ 224.160170][ T6840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.161678][ T6840] Call trace: [ 224.162205][ T6840] dump_backtrace+0x0/0x43c [ 224.162945][ T6840] show_stack+0x2c/0x3c [ 224.163594][ T6840] __dump_stack+0x30/0x40 [ 224.164231][ T6840] dump_stack_lvl+0xf8/0x160 [ 224.164930][ T6840] dump_stack+0x1c/0x5c [ 224.165524][ T6840] sysfs_create_dir_ns+0x22c/0x24c [ 224.166304][ T6840] kobject_add_internal+0x590/0xc54 [ 224.167056][ T6840] kobject_init_and_add+0x118/0x17c [ 224.167829][ T6840] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.168525][ T6840] gfs2_fill_super+0xdac/0x19e0 [ 224.169259][ T6840] get_tree_bdev+0x358/0x544 [ 224.169939][ T6840] gfs2_get_tree+0x54/0x1b4 [ 224.170698][ T6840] vfs_get_tree+0x90/0x274 [ 224.171348][ T6840] do_new_mount+0x228/0x810 [ 224.172047][ T6840] path_mount+0x5b4/0x1000 [ 224.172707][ T6840] __arm64_sys_mount+0x514/0x5e4 [ 224.173471][ T6840] invoke_syscall+0x98/0x2b8 [ 224.174172][ T6840] el0_svc_common+0x138/0x258 [ 224.174956][ T6840] do_el0_svc+0x58/0x14c [ 224.175597][ T6840] el0_svc+0x78/0x1e0 [ 224.176189][ T6840] el0t_64_sync_handler+0xcc/0xe4 [ 224.176973][ T6840] el0t_64_sync+0x1a0/0x1a4 [ 224.179415][ T6840] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.181232][ T6840] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.327712][ T6843] loop1: detected capacity change from 0 to 32768 [ 224.363286][ T6843] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.364441][ T6843] CPU: 0 PID: 6843 Comm: syz.1.587 Not tainted syzkaller #0 [ 224.365559][ T6843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.367105][ T6843] Call trace: [ 224.367549][ T6843] dump_backtrace+0x0/0x43c [ 224.368203][ T6843] show_stack+0x2c/0x3c [ 224.368799][ T6843] __dump_stack+0x30/0x40 [ 224.369456][ T6843] dump_stack_lvl+0xf8/0x160 [ 224.370148][ T6843] dump_stack+0x1c/0x5c [ 224.370773][ T6843] sysfs_create_dir_ns+0x22c/0x24c [ 224.371596][ T6843] kobject_add_internal+0x590/0xc54 [ 224.372390][ T6843] kobject_init_and_add+0x118/0x17c [ 224.373170][ T6843] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.373859][ T6843] gfs2_fill_super+0xdac/0x19e0 [ 224.374559][ T6843] get_tree_bdev+0x358/0x544 [ 224.375203][ T6843] gfs2_get_tree+0x54/0x1b4 [ 224.375899][ T6843] vfs_get_tree+0x90/0x274 [ 224.376540][ T6843] do_new_mount+0x228/0x810 [ 224.377240][ T6843] path_mount+0x5b4/0x1000 [ 224.377900][ T6843] __arm64_sys_mount+0x514/0x5e4 [ 224.378666][ T6843] invoke_syscall+0x98/0x2b8 [ 224.379320][ T6843] el0_svc_common+0x138/0x258 [ 224.379975][ T6843] do_el0_svc+0x58/0x14c [ 224.380615][ T6843] el0_svc+0x78/0x1e0 [ 224.381169][ T6843] el0t_64_sync_handler+0xcc/0xe4 [ 224.381973][ T6843] el0t_64_sync+0x1a0/0x1a4 [ 224.384828][ T6843] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.386857][ T6843] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.531728][ T6846] loop1: detected capacity change from 0 to 32768 [ 224.541574][ T6846] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.542942][ T6846] CPU: 1 PID: 6846 Comm: syz.1.588 Not tainted syzkaller #0 [ 224.544119][ T6846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.545741][ T6846] Call trace: [ 224.546283][ T6846] dump_backtrace+0x0/0x43c [ 224.546966][ T6846] show_stack+0x2c/0x3c [ 224.547626][ T6846] __dump_stack+0x30/0x40 [ 224.548242][ T6846] dump_stack_lvl+0xf8/0x160 [ 224.548925][ T6846] dump_stack+0x1c/0x5c [ 224.549533][ T6846] sysfs_create_dir_ns+0x22c/0x24c [ 224.550278][ T6846] kobject_add_internal+0x590/0xc54 [ 224.551055][ T6846] kobject_init_and_add+0x118/0x17c [ 224.551870][ T6846] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.552595][ T6846] gfs2_fill_super+0xdac/0x19e0 [ 224.553341][ T6846] get_tree_bdev+0x358/0x544 [ 224.554062][ T6846] gfs2_get_tree+0x54/0x1b4 [ 224.554761][ T6846] vfs_get_tree+0x90/0x274 [ 224.555400][ T6846] do_new_mount+0x228/0x810 [ 224.556110][ T6846] path_mount+0x5b4/0x1000 [ 224.556793][ T6846] __arm64_sys_mount+0x514/0x5e4 [ 224.557528][ T6846] invoke_syscall+0x98/0x2b8 [ 224.558183][ T6846] el0_svc_common+0x138/0x258 [ 224.558886][ T6846] do_el0_svc+0x58/0x14c [ 224.559477][ T6846] el0_svc+0x78/0x1e0 [ 224.560095][ T6846] el0t_64_sync_handler+0xcc/0xe4 [ 224.560826][ T6846] el0t_64_sync+0x1a0/0x1a4 [ 224.561604][ T6846] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.563709][ T6846] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.704097][ T6849] loop1: detected capacity change from 0 to 32768 [ 224.743218][ T6849] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.744456][ T6849] CPU: 0 PID: 6849 Comm: syz.1.589 Not tainted syzkaller #0 [ 224.745536][ T6849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.746971][ T6849] Call trace: [ 224.747666][ T6849] dump_backtrace+0x0/0x43c [ 224.748346][ T6849] show_stack+0x2c/0x3c [ 224.748931][ T6849] __dump_stack+0x30/0x40 [ 224.749559][ T6849] dump_stack_lvl+0xf8/0x160 [ 224.750239][ T6849] dump_stack+0x1c/0x5c [ 224.750804][ T6849] sysfs_create_dir_ns+0x22c/0x24c [ 224.751544][ T6849] kobject_add_internal+0x590/0xc54 [ 224.752366][ T6849] kobject_init_and_add+0x118/0x17c [ 224.753148][ T6849] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.753849][ T6849] gfs2_fill_super+0xdac/0x19e0 [ 224.754588][ T6849] get_tree_bdev+0x358/0x544 [ 224.755293][ T6849] gfs2_get_tree+0x54/0x1b4 [ 224.755967][ T6849] vfs_get_tree+0x90/0x274 [ 224.756634][ T6849] do_new_mount+0x228/0x810 [ 224.757315][ T6849] path_mount+0x5b4/0x1000 [ 224.757958][ T6849] __arm64_sys_mount+0x514/0x5e4 [ 224.758675][ T6849] invoke_syscall+0x98/0x2b8 [ 224.759297][ T6849] el0_svc_common+0x138/0x258 [ 224.760013][ T6849] do_el0_svc+0x58/0x14c [ 224.760651][ T6849] el0_svc+0x78/0x1e0 [ 224.761221][ T6849] el0t_64_sync_handler+0xcc/0xe4 [ 224.761984][ T6849] el0t_64_sync+0x1a0/0x1a4 [ 224.762971][ T6849] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.764849][ T6849] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.907957][ T6852] loop1: detected capacity change from 0 to 32768 [ 224.918148][ T6852] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.920855][ T6852] CPU: 0 PID: 6852 Comm: syz.1.590 Not tainted syzkaller #0 [ 224.921932][ T6852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.923455][ T6852] Call trace: [ 224.923947][ T6852] dump_backtrace+0x0/0x43c [ 224.924590][ T6852] show_stack+0x2c/0x3c [ 224.925206][ T6852] __dump_stack+0x30/0x40 [ 224.925858][ T6852] dump_stack_lvl+0xf8/0x160 [ 224.926558][ T6852] dump_stack+0x1c/0x5c [ 224.927186][ T6852] sysfs_create_dir_ns+0x22c/0x24c [ 224.927894][ T6852] kobject_add_internal+0x590/0xc54 [ 224.928628][ T6852] kobject_init_and_add+0x118/0x17c [ 224.929408][ T6852] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.930116][ T6852] gfs2_fill_super+0xdac/0x19e0 [ 224.930864][ T6852] get_tree_bdev+0x358/0x544 [ 224.931494][ T6852] gfs2_get_tree+0x54/0x1b4 [ 224.932132][ T6852] vfs_get_tree+0x90/0x274 [ 224.932770][ T6852] do_new_mount+0x228/0x810 [ 224.933445][ T6852] path_mount+0x5b4/0x1000 [ 224.934099][ T6852] __arm64_sys_mount+0x514/0x5e4 [ 224.934790][ T6852] invoke_syscall+0x98/0x2b8 [ 224.935464][ T6852] el0_svc_common+0x138/0x258 [ 224.936142][ T6852] do_el0_svc+0x58/0x14c [ 224.936735][ T6852] el0_svc+0x78/0x1e0 [ 224.937402][ T6852] el0t_64_sync_handler+0xcc/0xe4 [ 224.938151][ T6852] el0t_64_sync+0x1a0/0x1a4 [ 224.940368][ T6852] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.942589][ T6852] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.084821][ T6855] loop1: detected capacity change from 0 to 32768 [ 225.091572][ T6855] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.093034][ T6855] CPU: 0 PID: 6855 Comm: syz.1.591 Not tainted syzkaller #0 [ 225.094142][ T6855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 225.095538][ T6855] Call trace: [ 225.096024][ T6855] dump_backtrace+0x0/0x43c [ 225.096694][ T6855] show_stack+0x2c/0x3c [ 225.097418][ T6855] __dump_stack+0x30/0x40 [ 225.098096][ T6855] dump_stack_lvl+0xf8/0x160 [ 225.098772][ T6855] dump_stack+0x1c/0x5c [ 225.099389][ T6855] sysfs_create_dir_ns+0x22c/0x24c [ 225.100170][ T6855] kobject_add_internal+0x590/0xc54 [ 225.100973][ T6855] kobject_init_and_add+0x118/0x17c [ 225.101741][ T6855] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.102453][ T6855] gfs2_fill_super+0xdac/0x19e0 [ 225.103170][ T6855] get_tree_bdev+0x358/0x544 [ 225.103862][ T6855] gfs2_get_tree+0x54/0x1b4 [ 225.104559][ T6855] vfs_get_tree+0x90/0x274 [ 225.105251][ T6855] do_new_mount+0x228/0x810 [ 225.105924][ T6855] path_mount+0x5b4/0x1000 [ 225.106528][ T6855] __arm64_sys_mount+0x514/0x5e4 [ 225.107338][ T6855] invoke_syscall+0x98/0x2b8 [ 225.108013][ T6855] el0_svc_common+0x138/0x258 [ 225.108742][ T6855] do_el0_svc+0x58/0x14c [ 225.109396][ T6855] el0_svc+0x78/0x1e0 [ 225.110001][ T6855] el0t_64_sync_handler+0xcc/0xe4 [ 225.110741][ T6855] el0t_64_sync+0x1a0/0x1a4 [ 225.113225][ T6855] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.115141][ T6855] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.260121][ T6858] loop1: detected capacity change from 0 to 32768 [ 225.265944][ T6858] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.267150][ T6858] CPU: 0 PID: 6858 Comm: syz.1.592 Not tainted syzkaller #0 [ 225.268168][ T6858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 225.269789][ T6858] Call trace: [ 225.270320][ T6858] dump_backtrace+0x0/0x43c [ 225.271017][ T6858] show_stack+0x2c/0x3c [ 225.271668][ T6858] __dump_stack+0x30/0x40 [ 225.272395][ T6858] dump_stack_lvl+0xf8/0x160 [ 225.273087][ T6858] dump_stack+0x1c/0x5c [ 225.273726][ T6858] sysfs_create_dir_ns+0x22c/0x24c [ 225.274496][ T6858] kobject_add_internal+0x590/0xc54 [ 225.275350][ T6858] kobject_init_and_add+0x118/0x17c [ 225.276138][ T6858] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.276895][ T6858] gfs2_fill_super+0xdac/0x19e0 [ 225.277665][ T6858] get_tree_bdev+0x358/0x544 [ 225.278313][ T6858] gfs2_get_tree+0x54/0x1b4 [ 225.278936][ T6858] vfs_get_tree+0x90/0x274 [ 225.279574][ T6858] do_new_mount+0x228/0x810 [ 225.280315][ T6858] path_mount+0x5b4/0x1000 [ 225.280986][ T6858] __arm64_sys_mount+0x514/0x5e4 [ 225.281755][ T6858] invoke_syscall+0x98/0x2b8 [ 225.282386][ T6858] el0_svc_common+0x138/0x258 [ 225.283080][ T6858] do_el0_svc+0x58/0x14c [ 225.283717][ T6858] el0_svc+0x78/0x1e0 [ 225.284308][ T6858] el0t_64_sync_handler+0xcc/0xe4 [ 225.285058][ T6858] el0t_64_sync+0x1a0/0x1a4 [ 225.287368][ T6858] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.289533][ T6858] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.426086][ T6861] loop1: detected capacity change from 0 to 32768 [ 225.507263][ T6861] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.508454][ T6861] CPU: 0 PID: 6861 Comm: syz.1.593 Not tainted syzkaller #0 [ 225.509556][ T6861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 225.510986][ T6861] Call trace: [ 225.511461][ T6861] dump_backtrace+0x0/0x43c [ 225.512131][ T6861] show_stack+0x2c/0x3c [ 225.512752][ T6861] __dump_stack+0x30/0x40 [ 225.513391][ T6861] dump_stack_lvl+0xf8/0x160 [ 225.514081][ T6861] dump_stack+0x1c/0x5c [ 225.514720][ T6861] sysfs_create_dir_ns+0x22c/0x24c [ 225.515473][ T6861] kobject_add_internal+0x590/0xc54 [ 225.516228][ T6861] kobject_init_and_add+0x118/0x17c [ 225.516997][ T6861] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.517771][ T6861] gfs2_fill_super+0xdac/0x19e0 [ 225.518507][ T6861] get_tree_bdev+0x358/0x544 [ 225.519209][ T6861] gfs2_get_tree+0x54/0x1b4 [ 225.519852][ T6861] vfs_get_tree+0x90/0x274 [ 225.520563][ T6861] do_new_mount+0x228/0x810 [ 225.521259][ T6861] path_mount+0x5b4/0x1000 [ 225.521947][ T6861] __arm64_sys_mount+0x514/0x5e4 [ 225.522747][ T6861] invoke_syscall+0x98/0x2b8 [ 225.523411][ T6861] el0_svc_common+0x138/0x258 [ 225.524110][ T6861] do_el0_svc+0x58/0x14c [ 225.524791][ T6861] el0_svc+0x78/0x1e0 [ 225.525419][ T6861] el0t_64_sync_handler+0xcc/0xe4 [ 225.526138][ T6861] el0t_64_sync+0x1a0/0x1a4 [ 225.528693][ T6861] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.530747][ T6861] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.676132][ T6864] loop1: detected capacity change from 0 to 32768 [ 225.723296][ T6864] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.724499][ T6864] CPU: 1 PID: 6864 Comm: syz.1.594 Not tainted syzkaller #0 [ 225.725554][ T6864] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 225.726961][ T6864] Call trace: [ 225.727408][ T6864] dump_backtrace+0x0/0x43c [ 225.728100][ T6864] show_stack+0x2c/0x3c [ 225.728722][ T6864] __dump_stack+0x30/0x40 [ 225.729388][ T6864] dump_stack_lvl+0xf8/0x160 [ 225.730115][ T6864] dump_stack+0x1c/0x5c [ 225.730791][ T6864] sysfs_create_dir_ns+0x22c/0x24c [ 225.731547][ T6864] kobject_add_internal+0x590/0xc54 [ 225.732367][ T6864] kobject_init_and_add+0x118/0x17c [ 225.733190][ T6864] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.733950][ T6864] gfs2_fill_super+0xdac/0x19e0 [ 225.734748][ T6864] get_tree_bdev+0x358/0x544 [ 225.735433][ T6864] gfs2_get_tree+0x54/0x1b4 [ 225.736051][ T6864] vfs_get_tree+0x90/0x274 [ 225.736705][ T6864] do_new_mount+0x228/0x810 [ 225.737377][ T6864] path_mount+0x5b4/0x1000 [ 225.737992][ T6864] __arm64_sys_mount+0x514/0x5e4 [ 225.738648][ T6864] invoke_syscall+0x98/0x2b8 [ 225.739329][ T6864] el0_svc_common+0x138/0x258 [ 225.739993][ T6864] do_el0_svc+0x58/0x14c [ 225.740730][ T6864] el0_svc+0x78/0x1e0 [ 225.741406][ T6864] el0t_64_sync_handler+0xcc/0xe4 [ 225.742245][ T6864] el0t_64_sync+0x1a0/0x1a4 [ 225.743596][ T6864] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.745708][ T6864] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.951227][ T6867] loop1: detected capacity change from 0 to 32768 [ 225.958818][ T6867] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.960012][ T6867] CPU: 0 PID: 6867 Comm: syz.1.595 Not tainted syzkaller #0 [ 225.961092][ T6867] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 225.962726][ T6867] Call trace: [ 225.963265][ T6867] dump_backtrace+0x0/0x43c [ 225.964038][ T6867] show_stack+0x2c/0x3c [ 225.964695][ T6867] __dump_stack+0x30/0x40 [ 225.965387][ T6867] dump_stack_lvl+0xf8/0x160 [ 225.966141][ T6867] dump_stack+0x1c/0x5c [ 225.966814][ T6867] sysfs_create_dir_ns+0x22c/0x24c [ 225.967588][ T6867] kobject_add_internal+0x590/0xc54 [ 225.968388][ T6867] kobject_init_and_add+0x118/0x17c [ 225.969184][ T6867] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.969886][ T6867] gfs2_fill_super+0xdac/0x19e0 [ 225.970543][ T6867] get_tree_bdev+0x358/0x544 [ 225.971217][ T6867] gfs2_get_tree+0x54/0x1b4 [ 225.971864][ T6867] vfs_get_tree+0x90/0x274 [ 225.972509][ T6867] do_new_mount+0x228/0x810 [ 225.973139][ T6867] path_mount+0x5b4/0x1000 [ 225.973777][ T6867] __arm64_sys_mount+0x514/0x5e4 [ 225.974484][ T6867] invoke_syscall+0x98/0x2b8 [ 225.975183][ T6867] el0_svc_common+0x138/0x258 [ 225.975923][ T6867] do_el0_svc+0x58/0x14c [ 225.976581][ T6867] el0_svc+0x78/0x1e0 [ 225.977182][ T6867] el0t_64_sync_handler+0xcc/0xe4 [ 225.977951][ T6867] el0t_64_sync+0x1a0/0x1a4 [ 225.979056][ T6867] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.980961][ T6867] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.118240][ T6870] loop1: detected capacity change from 0 to 32768 [ 226.126372][ T6870] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.127633][ T6870] CPU: 1 PID: 6870 Comm: syz.1.596 Not tainted syzkaller #0 [ 226.128850][ T6870] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 226.130300][ T6870] Call trace: [ 226.130753][ T6870] dump_backtrace+0x0/0x43c [ 226.131471][ T6870] show_stack+0x2c/0x3c [ 226.132154][ T6870] __dump_stack+0x30/0x40 [ 226.132880][ T6870] dump_stack_lvl+0xf8/0x160 [ 226.133654][ T6870] dump_stack+0x1c/0x5c [ 226.134381][ T6870] sysfs_create_dir_ns+0x22c/0x24c [ 226.135199][ T6870] kobject_add_internal+0x590/0xc54 [ 226.135965][ T6870] kobject_init_and_add+0x118/0x17c [ 226.136769][ T6870] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.137462][ T6870] gfs2_fill_super+0xdac/0x19e0 [ 226.138154][ T6870] get_tree_bdev+0x358/0x544 [ 226.138813][ T6870] gfs2_get_tree+0x54/0x1b4 [ 226.139512][ T6870] vfs_get_tree+0x90/0x274 [ 226.140199][ T6870] do_new_mount+0x228/0x810 [ 226.140872][ T6870] path_mount+0x5b4/0x1000 [ 226.141585][ T6870] __arm64_sys_mount+0x514/0x5e4 [ 226.142256][ T6870] invoke_syscall+0x98/0x2b8 [ 226.142992][ T6870] el0_svc_common+0x138/0x258 [ 226.143695][ T6870] do_el0_svc+0x58/0x14c [ 226.144300][ T6870] el0_svc+0x78/0x1e0 [ 226.144887][ T6870] el0t_64_sync_handler+0xcc/0xe4 [ 226.145555][ T6870] el0t_64_sync+0x1a0/0x1a4 [ 226.149316][ T6870] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.151196][ T6870] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:46 executed programs: 583 [ 226.291969][ T6873] loop1: detected capacity change from 0 to 32768 [ 226.300474][ T6873] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.301675][ T6873] CPU: 1 PID: 6873 Comm: syz.1.597 Not tainted syzkaller #0 [ 226.302695][ T6873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 226.304078][ T6873] Call trace: [ 226.304506][ T6873] dump_backtrace+0x0/0x43c [ 226.305176][ T6873] show_stack+0x2c/0x3c [ 226.305753][ T6873] __dump_stack+0x30/0x40 [ 226.306488][ T6873] dump_stack_lvl+0xf8/0x160 [ 226.307218][ T6873] dump_stack+0x1c/0x5c [ 226.307835][ T6873] sysfs_create_dir_ns+0x22c/0x24c [ 226.308584][ T6873] kobject_add_internal+0x590/0xc54 [ 226.309305][ T6873] kobject_init_and_add+0x118/0x17c [ 226.310094][ T6873] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.310854][ T6873] gfs2_fill_super+0xdac/0x19e0 [ 226.311551][ T6873] get_tree_bdev+0x358/0x544 [ 226.312237][ T6873] gfs2_get_tree+0x54/0x1b4 [ 226.312901][ T6873] vfs_get_tree+0x90/0x274 [ 226.313570][ T6873] do_new_mount+0x228/0x810 [ 226.314266][ T6873] path_mount+0x5b4/0x1000 [ 226.314957][ T6873] __arm64_sys_mount+0x514/0x5e4 [ 226.315717][ T6873] invoke_syscall+0x98/0x2b8 [ 226.316464][ T6873] el0_svc_common+0x138/0x258 [ 226.317145][ T6873] do_el0_svc+0x58/0x14c [ 226.317775][ T6873] el0_svc+0x78/0x1e0 [ 226.318374][ T6873] el0t_64_sync_handler+0xcc/0xe4 [ 226.319057][ T6873] el0t_64_sync+0x1a0/0x1a4 [ 226.321499][ T6873] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.323796][ T6873] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.463585][ T6876] loop1: detected capacity change from 0 to 32768 [ 226.472445][ T6876] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.473647][ T6876] CPU: 1 PID: 6876 Comm: syz.1.598 Not tainted syzkaller #0 [ 226.474737][ T6876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 226.476241][ T6876] Call trace: [ 226.476754][ T6876] dump_backtrace+0x0/0x43c [ 226.477448][ T6876] show_stack+0x2c/0x3c [ 226.478051][ T6876] __dump_stack+0x30/0x40 [ 226.478708][ T6876] dump_stack_lvl+0xf8/0x160 [ 226.479348][ T6876] dump_stack+0x1c/0x5c [ 226.479983][ T6876] sysfs_create_dir_ns+0x22c/0x24c [ 226.480708][ T6876] kobject_add_internal+0x590/0xc54 [ 226.481443][ T6876] kobject_init_and_add+0x118/0x17c [ 226.482215][ T6876] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.482868][ T6876] gfs2_fill_super+0xdac/0x19e0 [ 226.483567][ T6876] get_tree_bdev+0x358/0x544 [ 226.484262][ T6876] gfs2_get_tree+0x54/0x1b4 [ 226.484999][ T6876] vfs_get_tree+0x90/0x274 [ 226.485664][ T6876] do_new_mount+0x228/0x810 [ 226.486313][ T6876] path_mount+0x5b4/0x1000 [ 226.486912][ T6876] __arm64_sys_mount+0x514/0x5e4 [ 226.487747][ T6876] invoke_syscall+0x98/0x2b8 [ 226.488488][ T6876] el0_svc_common+0x138/0x258 [ 226.489194][ T6876] do_el0_svc+0x58/0x14c [ 226.489837][ T6876] el0_svc+0x78/0x1e0 [ 226.490396][ T6876] el0t_64_sync_handler+0xcc/0xe4 [ 226.491150][ T6876] el0t_64_sync+0x1a0/0x1a4 [ 226.493567][ T6876] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.495434][ T6876] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.673180][ T6879] loop1: detected capacity change from 0 to 32768 [ 226.738662][ T6879] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.739901][ T6879] CPU: 0 PID: 6879 Comm: syz.1.599 Not tainted syzkaller #0 [ 226.741044][ T6879] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 226.742694][ T6879] Call trace: [ 226.743208][ T6879] dump_backtrace+0x0/0x43c [ 226.743931][ T6879] show_stack+0x2c/0x3c [ 226.744588][ T6879] __dump_stack+0x30/0x40 [ 226.745275][ T6879] dump_stack_lvl+0xf8/0x160 [ 226.745969][ T6879] dump_stack+0x1c/0x5c [ 226.746559][ T6879] sysfs_create_dir_ns+0x22c/0x24c [ 226.747344][ T6879] kobject_add_internal+0x590/0xc54 [ 226.748111][ T6879] kobject_init_and_add+0x118/0x17c [ 226.748872][ T6879] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.749646][ T6879] gfs2_fill_super+0xdac/0x19e0 [ 226.750369][ T6879] get_tree_bdev+0x358/0x544 [ 226.751073][ T6879] gfs2_get_tree+0x54/0x1b4 [ 226.751761][ T6879] vfs_get_tree+0x90/0x274 [ 226.752414][ T6879] do_new_mount+0x228/0x810 [ 226.753075][ T6879] path_mount+0x5b4/0x1000 [ 226.753738][ T6879] __arm64_sys_mount+0x514/0x5e4 [ 226.754435][ T6879] invoke_syscall+0x98/0x2b8 [ 226.755178][ T6879] el0_svc_common+0x138/0x258 [ 226.755857][ T6879] do_el0_svc+0x58/0x14c [ 226.756498][ T6879] el0_svc+0x78/0x1e0 [ 226.757107][ T6879] el0t_64_sync_handler+0xcc/0xe4 [ 226.757896][ T6879] el0t_64_sync+0x1a0/0x1a4 [ 226.759809][ T6879] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.761856][ T6879] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.898597][ T6882] loop1: detected capacity change from 0 to 32768 [ 226.936888][ T6882] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.938121][ T6882] CPU: 1 PID: 6882 Comm: syz.1.600 Not tainted syzkaller #0 [ 226.939318][ T6882] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 226.940767][ T6882] Call trace: [ 226.941280][ T6882] dump_backtrace+0x0/0x43c [ 226.941977][ T6882] show_stack+0x2c/0x3c [ 226.942617][ T6882] __dump_stack+0x30/0x40 [ 226.943234][ T6882] dump_stack_lvl+0xf8/0x160 [ 226.943950][ T6882] dump_stack+0x1c/0x5c [ 226.944589][ T6882] sysfs_create_dir_ns+0x22c/0x24c [ 226.945357][ T6882] kobject_add_internal+0x590/0xc54 [ 226.946119][ T6882] kobject_init_and_add+0x118/0x17c [ 226.946871][ T6882] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.947612][ T6882] gfs2_fill_super+0xdac/0x19e0 [ 226.948354][ T6882] get_tree_bdev+0x358/0x544 [ 226.949021][ T6882] gfs2_get_tree+0x54/0x1b4 [ 226.949677][ T6882] vfs_get_tree+0x90/0x274 [ 226.950445][ T6882] do_new_mount+0x228/0x810 [ 226.951214][ T6882] path_mount+0x5b4/0x1000 [ 226.951940][ T6882] __arm64_sys_mount+0x514/0x5e4 [ 226.952701][ T6882] invoke_syscall+0x98/0x2b8 [ 226.953391][ T6882] el0_svc_common+0x138/0x258 [ 226.954092][ T6882] do_el0_svc+0x58/0x14c [ 226.954841][ T6882] el0_svc+0x78/0x1e0 [ 226.955451][ T6882] el0t_64_sync_handler+0xcc/0xe4 [ 226.956187][ T6882] el0t_64_sync+0x1a0/0x1a4 [ 226.958118][ T6882] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.960141][ T6882] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.100018][ T6885] loop1: detected capacity change from 0 to 32768 [ 227.108527][ T6885] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.109680][ T6885] CPU: 1 PID: 6885 Comm: syz.1.601 Not tainted syzkaller #0 [ 227.110757][ T6885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 227.112148][ T6885] Call trace: [ 227.112603][ T6885] dump_backtrace+0x0/0x43c [ 227.113248][ T6885] show_stack+0x2c/0x3c [ 227.113878][ T6885] __dump_stack+0x30/0x40 [ 227.114488][ T6885] dump_stack_lvl+0xf8/0x160 [ 227.115116][ T6885] dump_stack+0x1c/0x5c [ 227.115714][ T6885] sysfs_create_dir_ns+0x22c/0x24c [ 227.116421][ T6885] kobject_add_internal+0x590/0xc54 [ 227.117141][ T6885] kobject_init_and_add+0x118/0x17c [ 227.117945][ T6885] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.118596][ T6885] gfs2_fill_super+0xdac/0x19e0 [ 227.119332][ T6885] get_tree_bdev+0x358/0x544 [ 227.120003][ T6885] gfs2_get_tree+0x54/0x1b4 [ 227.120625][ T6885] vfs_get_tree+0x90/0x274 [ 227.121225][ T6885] do_new_mount+0x228/0x810 [ 227.121916][ T6885] path_mount+0x5b4/0x1000 [ 227.122615][ T6885] __arm64_sys_mount+0x514/0x5e4 [ 227.123414][ T6885] invoke_syscall+0x98/0x2b8 [ 227.124190][ T6885] el0_svc_common+0x138/0x258 [ 227.124953][ T6885] do_el0_svc+0x58/0x14c [ 227.125595][ T6885] el0_svc+0x78/0x1e0 [ 227.126236][ T6885] el0t_64_sync_handler+0xcc/0xe4 [ 227.127036][ T6885] el0t_64_sync+0x1a0/0x1a4 [ 227.130624][ T6885] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.132537][ T6885] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.271161][ T6888] loop1: detected capacity change from 0 to 32768 [ 227.376407][ T6888] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.377532][ T6888] CPU: 1 PID: 6888 Comm: syz.1.602 Not tainted syzkaller #0 [ 227.378598][ T6888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 227.380043][ T6888] Call trace: [ 227.380503][ T6888] dump_backtrace+0x0/0x43c [ 227.381186][ T6888] show_stack+0x2c/0x3c [ 227.381773][ T6888] __dump_stack+0x30/0x40 [ 227.382464][ T6888] dump_stack_lvl+0xf8/0x160 [ 227.383185][ T6888] dump_stack+0x1c/0x5c [ 227.383799][ T6888] sysfs_create_dir_ns+0x22c/0x24c [ 227.384564][ T6888] kobject_add_internal+0x590/0xc54 [ 227.385345][ T6888] kobject_init_and_add+0x118/0x17c [ 227.386167][ T6888] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.386997][ T6888] gfs2_fill_super+0xdac/0x19e0 [ 227.387783][ T6888] get_tree_bdev+0x358/0x544 [ 227.388445][ T6888] gfs2_get_tree+0x54/0x1b4 [ 227.389127][ T6888] vfs_get_tree+0x90/0x274 [ 227.389764][ T6888] do_new_mount+0x228/0x810 [ 227.390429][ T6888] path_mount+0x5b4/0x1000 [ 227.391145][ T6888] __arm64_sys_mount+0x514/0x5e4 [ 227.391858][ T6888] invoke_syscall+0x98/0x2b8 [ 227.392560][ T6888] el0_svc_common+0x138/0x258 [ 227.393270][ T6888] do_el0_svc+0x58/0x14c [ 227.393920][ T6888] el0_svc+0x78/0x1e0 [ 227.394513][ T6888] el0t_64_sync_handler+0xcc/0xe4 [ 227.395191][ T6888] el0t_64_sync+0x1a0/0x1a4 [ 227.397332][ T6888] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.399231][ T6888] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.533613][ T6891] loop1: detected capacity change from 0 to 32768 [ 227.574956][ T6891] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.576207][ T6891] CPU: 0 PID: 6891 Comm: syz.1.603 Not tainted syzkaller #0 [ 227.577226][ T6891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 227.578747][ T6891] Call trace: [ 227.579186][ T6891] dump_backtrace+0x0/0x43c [ 227.579870][ T6891] show_stack+0x2c/0x3c [ 227.580444][ T6891] __dump_stack+0x30/0x40 [ 227.581054][ T6891] dump_stack_lvl+0xf8/0x160 [ 227.581690][ T6891] dump_stack+0x1c/0x5c [ 227.582325][ T6891] sysfs_create_dir_ns+0x22c/0x24c [ 227.583079][ T6891] kobject_add_internal+0x590/0xc54 [ 227.583837][ T6891] kobject_init_and_add+0x118/0x17c [ 227.584619][ T6891] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.585365][ T6891] gfs2_fill_super+0xdac/0x19e0 [ 227.586058][ T6891] get_tree_bdev+0x358/0x544 [ 227.586750][ T6891] gfs2_get_tree+0x54/0x1b4 [ 227.587346][ T6891] vfs_get_tree+0x90/0x274 [ 227.587981][ T6891] do_new_mount+0x228/0x810 [ 227.588683][ T6891] path_mount+0x5b4/0x1000 [ 227.589325][ T6891] __arm64_sys_mount+0x514/0x5e4 [ 227.590083][ T6891] invoke_syscall+0x98/0x2b8 [ 227.590736][ T6891] el0_svc_common+0x138/0x258 [ 227.591427][ T6891] do_el0_svc+0x58/0x14c [ 227.592128][ T6891] el0_svc+0x78/0x1e0 [ 227.592746][ T6891] el0t_64_sync_handler+0xcc/0xe4 [ 227.593496][ T6891] el0t_64_sync+0x1a0/0x1a4 [ 227.595777][ T6891] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.597628][ T6891] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.734775][ T6894] loop1: detected capacity change from 0 to 32768 [ 227.783208][ T6894] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.784632][ T6894] CPU: 0 PID: 6894 Comm: syz.1.604 Not tainted syzkaller #0 [ 227.785737][ T6894] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 227.787098][ T6894] Call trace: [ 227.787571][ T6894] dump_backtrace+0x0/0x43c [ 227.788229][ T6894] show_stack+0x2c/0x3c [ 227.788801][ T6894] __dump_stack+0x30/0x40 [ 227.789477][ T6894] dump_stack_lvl+0xf8/0x160 [ 227.790128][ T6894] dump_stack+0x1c/0x5c [ 227.790787][ T6894] sysfs_create_dir_ns+0x22c/0x24c [ 227.791562][ T6894] kobject_add_internal+0x590/0xc54 [ 227.792367][ T6894] kobject_init_and_add+0x118/0x17c [ 227.793106][ T6894] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.793835][ T6894] gfs2_fill_super+0xdac/0x19e0 [ 227.794606][ T6894] get_tree_bdev+0x358/0x544 [ 227.795268][ T6894] gfs2_get_tree+0x54/0x1b4 [ 227.796020][ T6894] vfs_get_tree+0x90/0x274 [ 227.796688][ T6894] do_new_mount+0x228/0x810 [ 227.797476][ T6894] path_mount+0x5b4/0x1000 [ 227.798189][ T6894] __arm64_sys_mount+0x514/0x5e4 [ 227.798944][ T6894] invoke_syscall+0x98/0x2b8 [ 227.799644][ T6894] el0_svc_common+0x138/0x258 [ 227.800355][ T6894] do_el0_svc+0x58/0x14c [ 227.801052][ T6894] el0_svc+0x78/0x1e0 [ 227.801657][ T6894] el0t_64_sync_handler+0xcc/0xe4 [ 227.802404][ T6894] el0t_64_sync+0x1a0/0x1a4 [ 227.805026][ T6894] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.807061][ T6894] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.943275][ T6897] loop1: detected capacity change from 0 to 32768 [ 228.003758][ T6897] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.005054][ T6897] CPU: 1 PID: 6897 Comm: syz.1.605 Not tainted syzkaller #0 [ 228.006233][ T6897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 228.007760][ T6897] Call trace: [ 228.008274][ T6897] dump_backtrace+0x0/0x43c [ 228.008955][ T6897] show_stack+0x2c/0x3c [ 228.009574][ T6897] __dump_stack+0x30/0x40 [ 228.010200][ T6897] dump_stack_lvl+0xf8/0x160 [ 228.010909][ T6897] dump_stack+0x1c/0x5c [ 228.011516][ T6897] sysfs_create_dir_ns+0x22c/0x24c [ 228.012244][ T6897] kobject_add_internal+0x590/0xc54 [ 228.012998][ T6897] kobject_init_and_add+0x118/0x17c [ 228.013768][ T6897] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.014420][ T6897] gfs2_fill_super+0xdac/0x19e0 [ 228.015117][ T6897] get_tree_bdev+0x358/0x544 [ 228.015762][ T6897] gfs2_get_tree+0x54/0x1b4 [ 228.016444][ T6897] vfs_get_tree+0x90/0x274 [ 228.017055][ T6897] do_new_mount+0x228/0x810 [ 228.017728][ T6897] path_mount+0x5b4/0x1000 [ 228.018364][ T6897] __arm64_sys_mount+0x514/0x5e4 [ 228.019104][ T6897] invoke_syscall+0x98/0x2b8 [ 228.019771][ T6897] el0_svc_common+0x138/0x258 [ 228.020479][ T6897] do_el0_svc+0x58/0x14c [ 228.021100][ T6897] el0_svc+0x78/0x1e0 [ 228.021736][ T6897] el0t_64_sync_handler+0xcc/0xe4 [ 228.022468][ T6897] el0t_64_sync+0x1a0/0x1a4 [ 228.027186][ T6897] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.029403][ T6897] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.166377][ T6900] loop1: detected capacity change from 0 to 32768 [ 228.257125][ T6900] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.258271][ T6900] CPU: 1 PID: 6900 Comm: syz.1.606 Not tainted syzkaller #0 [ 228.259463][ T6900] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 228.261028][ T6900] Call trace: [ 228.261475][ T6900] dump_backtrace+0x0/0x43c [ 228.262147][ T6900] show_stack+0x2c/0x3c [ 228.262775][ T6900] __dump_stack+0x30/0x40 [ 228.263429][ T6900] dump_stack_lvl+0xf8/0x160 [ 228.264124][ T6900] dump_stack+0x1c/0x5c [ 228.264759][ T6900] sysfs_create_dir_ns+0x22c/0x24c [ 228.265582][ T6900] kobject_add_internal+0x590/0xc54 [ 228.266340][ T6900] kobject_init_and_add+0x118/0x17c [ 228.267182][ T6900] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.267839][ T6900] gfs2_fill_super+0xdac/0x19e0 [ 228.268595][ T6900] get_tree_bdev+0x358/0x544 [ 228.269273][ T6900] gfs2_get_tree+0x54/0x1b4 [ 228.269971][ T6900] vfs_get_tree+0x90/0x274 [ 228.270636][ T6900] do_new_mount+0x228/0x810 [ 228.271344][ T6900] path_mount+0x5b4/0x1000 [ 228.272026][ T6900] __arm64_sys_mount+0x514/0x5e4 [ 228.272774][ T6900] invoke_syscall+0x98/0x2b8 [ 228.273441][ T6900] el0_svc_common+0x138/0x258 [ 228.274151][ T6900] do_el0_svc+0x58/0x14c [ 228.274759][ T6900] el0_svc+0x78/0x1e0 [ 228.275313][ T6900] el0t_64_sync_handler+0xcc/0xe4 [ 228.276135][ T6900] el0t_64_sync+0x1a0/0x1a4 [ 228.279205][ T6900] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.281203][ T6900] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.426749][ T6903] loop1: detected capacity change from 0 to 32768 [ 228.507482][ T6903] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.508708][ T6903] CPU: 1 PID: 6903 Comm: syz.1.607 Not tainted syzkaller #0 [ 228.509955][ T6903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 228.511499][ T6903] Call trace: [ 228.511998][ T6903] dump_backtrace+0x0/0x43c [ 228.512698][ T6903] show_stack+0x2c/0x3c [ 228.513324][ T6903] __dump_stack+0x30/0x40 [ 228.513936][ T6903] dump_stack_lvl+0xf8/0x160 [ 228.514616][ T6903] dump_stack+0x1c/0x5c [ 228.515230][ T6903] sysfs_create_dir_ns+0x22c/0x24c [ 228.515956][ T6903] kobject_add_internal+0x590/0xc54 [ 228.516733][ T6903] kobject_init_and_add+0x118/0x17c [ 228.517476][ T6903] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.518192][ T6903] gfs2_fill_super+0xdac/0x19e0 [ 228.518935][ T6903] get_tree_bdev+0x358/0x544 [ 228.519629][ T6903] gfs2_get_tree+0x54/0x1b4 [ 228.520324][ T6903] vfs_get_tree+0x90/0x274 [ 228.520940][ T6903] do_new_mount+0x228/0x810 [ 228.521583][ T6903] path_mount+0x5b4/0x1000 [ 228.522252][ T6903] __arm64_sys_mount+0x514/0x5e4 [ 228.523030][ T6903] invoke_syscall+0x98/0x2b8 [ 228.523692][ T6903] el0_svc_common+0x138/0x258 [ 228.524357][ T6903] do_el0_svc+0x58/0x14c [ 228.525000][ T6903] el0_svc+0x78/0x1e0 [ 228.525532][ T6903] el0t_64_sync_handler+0xcc/0xe4 [ 228.526309][ T6903] el0t_64_sync+0x1a0/0x1a4 [ 228.528782][ T6903] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.530749][ T6903] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.675759][ T6906] loop1: detected capacity change from 0 to 32768 [ 228.726911][ T6906] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.728083][ T6906] CPU: 1 PID: 6906 Comm: syz.1.608 Not tainted syzkaller #0 [ 228.729278][ T6906] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 228.730779][ T6906] Call trace: [ 228.731259][ T6906] dump_backtrace+0x0/0x43c [ 228.731899][ T6906] show_stack+0x2c/0x3c [ 228.732555][ T6906] __dump_stack+0x30/0x40 [ 228.733176][ T6906] dump_stack_lvl+0xf8/0x160 [ 228.733893][ T6906] dump_stack+0x1c/0x5c [ 228.734505][ T6906] sysfs_create_dir_ns+0x22c/0x24c [ 228.735265][ T6906] kobject_add_internal+0x590/0xc54 [ 228.736004][ T6906] kobject_init_and_add+0x118/0x17c [ 228.736843][ T6906] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.737551][ T6906] gfs2_fill_super+0xdac/0x19e0 [ 228.738295][ T6906] get_tree_bdev+0x358/0x544 [ 228.738997][ T6906] gfs2_get_tree+0x54/0x1b4 [ 228.739633][ T6906] vfs_get_tree+0x90/0x274 [ 228.740225][ T6906] do_new_mount+0x228/0x810 [ 228.740849][ T6906] path_mount+0x5b4/0x1000 [ 228.741519][ T6906] __arm64_sys_mount+0x514/0x5e4 [ 228.742262][ T6906] invoke_syscall+0x98/0x2b8 [ 228.742972][ T6906] el0_svc_common+0x138/0x258 [ 228.743658][ T6906] do_el0_svc+0x58/0x14c [ 228.744350][ T6906] el0_svc+0x78/0x1e0 [ 228.744998][ T6906] el0t_64_sync_handler+0xcc/0xe4 [ 228.745733][ T6906] el0t_64_sync+0x1a0/0x1a4 [ 228.747950][ T6906] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.750066][ T6906] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.927791][ T6909] loop1: detected capacity change from 0 to 32768 [ 228.977255][ T6909] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.978474][ T6909] CPU: 0 PID: 6909 Comm: syz.1.609 Not tainted syzkaller #0 [ 228.979544][ T6909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 228.981049][ T6909] Call trace: [ 228.981583][ T6909] dump_backtrace+0x0/0x43c [ 228.982270][ T6909] show_stack+0x2c/0x3c [ 228.982937][ T6909] __dump_stack+0x30/0x40 [ 228.983608][ T6909] dump_stack_lvl+0xf8/0x160 [ 228.984273][ T6909] dump_stack+0x1c/0x5c [ 228.984990][ T6909] sysfs_create_dir_ns+0x22c/0x24c [ 228.985929][ T6909] kobject_add_internal+0x590/0xc54 [ 228.986783][ T6909] kobject_init_and_add+0x118/0x17c [ 228.987565][ T6909] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.988329][ T6909] gfs2_fill_super+0xdac/0x19e0 [ 228.989123][ T6909] get_tree_bdev+0x358/0x544 [ 228.989883][ T6909] gfs2_get_tree+0x54/0x1b4 [ 228.990605][ T6909] vfs_get_tree+0x90/0x274 [ 228.991336][ T6909] do_new_mount+0x228/0x810 [ 228.991989][ T6909] path_mount+0x5b4/0x1000 [ 228.992592][ T6909] __arm64_sys_mount+0x514/0x5e4 [ 228.993330][ T6909] invoke_syscall+0x98/0x2b8 [ 228.994020][ T6909] el0_svc_common+0x138/0x258 [ 228.994686][ T6909] do_el0_svc+0x58/0x14c [ 228.995313][ T6909] el0_svc+0x78/0x1e0 [ 228.995965][ T6909] el0t_64_sync_handler+0xcc/0xe4 [ 228.996705][ T6909] el0t_64_sync+0x1a0/0x1a4 [ 228.999242][ T6909] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.001140][ T6909] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.135202][ T6912] loop1: detected capacity change from 0 to 32768 [ 229.203738][ T6912] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.204936][ T6912] CPU: 0 PID: 6912 Comm: syz.1.610 Not tainted syzkaller #0 [ 229.206081][ T6912] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 229.207487][ T6912] Call trace: [ 229.207977][ T6912] dump_backtrace+0x0/0x43c [ 229.208657][ T6912] show_stack+0x2c/0x3c [ 229.209232][ T6912] __dump_stack+0x30/0x40 [ 229.209857][ T6912] dump_stack_lvl+0xf8/0x160 [ 229.210495][ T6912] dump_stack+0x1c/0x5c [ 229.211044][ T6912] sysfs_create_dir_ns+0x22c/0x24c [ 229.211789][ T6912] kobject_add_internal+0x590/0xc54 [ 229.212534][ T6912] kobject_init_and_add+0x118/0x17c [ 229.213235][ T6912] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.213931][ T6912] gfs2_fill_super+0xdac/0x19e0 [ 229.214643][ T6912] get_tree_bdev+0x358/0x544 [ 229.215280][ T6912] gfs2_get_tree+0x54/0x1b4 [ 229.215921][ T6912] vfs_get_tree+0x90/0x274 [ 229.216550][ T6912] do_new_mount+0x228/0x810 [ 229.217211][ T6912] path_mount+0x5b4/0x1000 [ 229.217810][ T6912] __arm64_sys_mount+0x514/0x5e4 [ 229.218558][ T6912] invoke_syscall+0x98/0x2b8 [ 229.219226][ T6912] el0_svc_common+0x138/0x258 [ 229.219894][ T6912] do_el0_svc+0x58/0x14c [ 229.220512][ T6912] el0_svc+0x78/0x1e0 [ 229.221144][ T6912] el0t_64_sync_handler+0xcc/0xe4 [ 229.221874][ T6912] el0t_64_sync+0x1a0/0x1a4 [ 229.224076][ T6912] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.226018][ T6912] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.372185][ T6915] loop1: detected capacity change from 0 to 32768 [ 229.381300][ T6915] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.382609][ T6915] CPU: 1 PID: 6915 Comm: syz.1.611 Not tainted syzkaller #0 [ 229.383776][ T6915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 229.385241][ T6915] Call trace: [ 229.385750][ T6915] dump_backtrace+0x0/0x43c [ 229.386332][ T6915] show_stack+0x2c/0x3c [ 229.386949][ T6915] __dump_stack+0x30/0x40 [ 229.387619][ T6915] dump_stack_lvl+0xf8/0x160 [ 229.388296][ T6915] dump_stack+0x1c/0x5c [ 229.388918][ T6915] sysfs_create_dir_ns+0x22c/0x24c [ 229.389645][ T6915] kobject_add_internal+0x590/0xc54 [ 229.390388][ T6915] kobject_init_and_add+0x118/0x17c [ 229.391101][ T6915] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.391757][ T6915] gfs2_fill_super+0xdac/0x19e0 [ 229.392488][ T6915] get_tree_bdev+0x358/0x544 [ 229.393162][ T6915] gfs2_get_tree+0x54/0x1b4 [ 229.393824][ T6915] vfs_get_tree+0x90/0x274 [ 229.394524][ T6915] do_new_mount+0x228/0x810 [ 229.395204][ T6915] path_mount+0x5b4/0x1000 [ 229.395860][ T6915] __arm64_sys_mount+0x514/0x5e4 [ 229.396557][ T6915] invoke_syscall+0x98/0x2b8 [ 229.397238][ T6915] el0_svc_common+0x138/0x258 [ 229.397916][ T6915] do_el0_svc+0x58/0x14c [ 229.398623][ T6915] el0_svc+0x78/0x1e0 [ 229.399316][ T6915] el0t_64_sync_handler+0xcc/0xe4 [ 229.400091][ T6915] el0t_64_sync+0x1a0/0x1a4 [ 229.401068][ T6915] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.403049][ T6915] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.545583][ T6918] loop1: detected capacity change from 0 to 32768 [ 229.627342][ T6918] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.628624][ T6918] CPU: 0 PID: 6918 Comm: syz.1.612 Not tainted syzkaller #0 [ 229.629785][ T6918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 229.631329][ T6918] Call trace: [ 229.631887][ T6918] dump_backtrace+0x0/0x43c [ 229.632576][ T6918] show_stack+0x2c/0x3c [ 229.633197][ T6918] __dump_stack+0x30/0x40 [ 229.633850][ T6918] dump_stack_lvl+0xf8/0x160 [ 229.634529][ T6918] dump_stack+0x1c/0x5c [ 229.635142][ T6918] sysfs_create_dir_ns+0x22c/0x24c [ 229.635923][ T6918] kobject_add_internal+0x590/0xc54 [ 229.636694][ T6918] kobject_init_and_add+0x118/0x17c [ 229.637492][ T6918] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.638206][ T6918] gfs2_fill_super+0xdac/0x19e0 [ 229.639001][ T6918] get_tree_bdev+0x358/0x544 [ 229.639654][ T6918] gfs2_get_tree+0x54/0x1b4 [ 229.640363][ T6918] vfs_get_tree+0x90/0x274 [ 229.641007][ T6918] do_new_mount+0x228/0x810 [ 229.641663][ T6918] path_mount+0x5b4/0x1000 [ 229.642301][ T6918] __arm64_sys_mount+0x514/0x5e4 [ 229.643001][ T6918] invoke_syscall+0x98/0x2b8 [ 229.643734][ T6918] el0_svc_common+0x138/0x258 [ 229.644494][ T6918] do_el0_svc+0x58/0x14c [ 229.645137][ T6918] el0_svc+0x78/0x1e0 [ 229.645749][ T6918] el0t_64_sync_handler+0xcc/0xe4 [ 229.646489][ T6918] el0t_64_sync+0x1a0/0x1a4 [ 229.648862][ T6918] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.650781][ T6918] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.790615][ T6921] loop1: detected capacity change from 0 to 32768 [ 229.798824][ T6921] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.800035][ T6921] CPU: 0 PID: 6921 Comm: syz.1.613 Not tainted syzkaller #0 [ 229.801188][ T6921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 229.802793][ T6921] Call trace: [ 229.803277][ T6921] dump_backtrace+0x0/0x43c [ 229.804019][ T6921] show_stack+0x2c/0x3c [ 229.804675][ T6921] __dump_stack+0x30/0x40 [ 229.805337][ T6921] dump_stack_lvl+0xf8/0x160 [ 229.806021][ T6921] dump_stack+0x1c/0x5c [ 229.806622][ T6921] sysfs_create_dir_ns+0x22c/0x24c [ 229.807356][ T6921] kobject_add_internal+0x590/0xc54 [ 229.808129][ T6921] kobject_init_and_add+0x118/0x17c [ 229.808902][ T6921] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.809626][ T6921] gfs2_fill_super+0xdac/0x19e0 [ 229.810316][ T6921] get_tree_bdev+0x358/0x544 [ 229.810994][ T6921] gfs2_get_tree+0x54/0x1b4 [ 229.811664][ T6921] vfs_get_tree+0x90/0x274 [ 229.812309][ T6921] do_new_mount+0x228/0x810 [ 229.812973][ T6921] path_mount+0x5b4/0x1000 [ 229.813620][ T6921] __arm64_sys_mount+0x514/0x5e4 [ 229.814380][ T6921] invoke_syscall+0x98/0x2b8 [ 229.815098][ T6921] el0_svc_common+0x138/0x258 [ 229.815878][ T6921] do_el0_svc+0x58/0x14c [ 229.816527][ T6921] el0_svc+0x78/0x1e0 [ 229.817141][ T6921] el0t_64_sync_handler+0xcc/0xe4 [ 229.817907][ T6921] el0t_64_sync+0x1a0/0x1a4 [ 229.820295][ T6921] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.823497][ T6921] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.959273][ T6924] loop1: detected capacity change from 0 to 32768 [ 229.968022][ T6924] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.969245][ T6924] CPU: 1 PID: 6924 Comm: syz.1.614 Not tainted syzkaller #0 [ 229.970295][ T6924] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 229.971784][ T6924] Call trace: [ 229.972226][ T6924] dump_backtrace+0x0/0x43c [ 229.972874][ T6924] show_stack+0x2c/0x3c [ 229.973472][ T6924] __dump_stack+0x30/0x40 [ 229.974114][ T6924] dump_stack_lvl+0xf8/0x160 [ 229.974796][ T6924] dump_stack+0x1c/0x5c [ 229.975389][ T6924] sysfs_create_dir_ns+0x22c/0x24c [ 229.976119][ T6924] kobject_add_internal+0x590/0xc54 [ 229.976880][ T6924] kobject_init_and_add+0x118/0x17c [ 229.977674][ T6924] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.978435][ T6924] gfs2_fill_super+0xdac/0x19e0 [ 229.979126][ T6924] get_tree_bdev+0x358/0x544 [ 229.979828][ T6924] gfs2_get_tree+0x54/0x1b4 [ 229.980522][ T6924] vfs_get_tree+0x90/0x274 [ 229.981133][ T6924] do_new_mount+0x228/0x810 [ 229.981757][ T6924] path_mount+0x5b4/0x1000 [ 229.982333][ T6924] __arm64_sys_mount+0x514/0x5e4 [ 229.983020][ T6924] invoke_syscall+0x98/0x2b8 [ 229.983815][ T6924] el0_svc_common+0x138/0x258 [ 229.984596][ T6924] do_el0_svc+0x58/0x14c [ 229.985307][ T6924] el0_svc+0x78/0x1e0 [ 229.985929][ T6924] el0t_64_sync_handler+0xcc/0xe4 [ 229.986667][ T6924] el0t_64_sync+0x1a0/0x1a4 [ 229.988976][ T6924] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.990981][ T6924] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.127194][ T6927] loop1: detected capacity change from 0 to 32768 [ 230.183315][ T6927] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.184468][ T6927] CPU: 1 PID: 6927 Comm: syz.1.615 Not tainted syzkaller #0 [ 230.185543][ T6927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 230.187007][ T6927] Call trace: [ 230.187498][ T6927] dump_backtrace+0x0/0x43c [ 230.188178][ T6927] show_stack+0x2c/0x3c [ 230.188772][ T6927] __dump_stack+0x30/0x40 [ 230.189407][ T6927] dump_stack_lvl+0xf8/0x160 [ 230.190072][ T6927] dump_stack+0x1c/0x5c [ 230.190660][ T6927] sysfs_create_dir_ns+0x22c/0x24c [ 230.191451][ T6927] kobject_add_internal+0x590/0xc54 [ 230.192268][ T6927] kobject_init_and_add+0x118/0x17c [ 230.193109][ T6927] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.193846][ T6927] gfs2_fill_super+0xdac/0x19e0 [ 230.194562][ T6927] get_tree_bdev+0x358/0x544 [ 230.195231][ T6927] gfs2_get_tree+0x54/0x1b4 [ 230.195934][ T6927] vfs_get_tree+0x90/0x274 [ 230.196623][ T6927] do_new_mount+0x228/0x810 [ 230.197299][ T6927] path_mount+0x5b4/0x1000 [ 230.197944][ T6927] __arm64_sys_mount+0x514/0x5e4 [ 230.198630][ T6927] invoke_syscall+0x98/0x2b8 [ 230.199331][ T6927] el0_svc_common+0x138/0x258 [ 230.200059][ T6927] do_el0_svc+0x58/0x14c [ 230.200692][ T6927] el0_svc+0x78/0x1e0 [ 230.201288][ T6927] el0t_64_sync_handler+0xcc/0xe4 [ 230.202014][ T6927] el0t_64_sync+0x1a0/0x1a4 [ 230.202927][ T6927] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.204775][ T6927] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.381582][ T6930] loop1: detected capacity change from 0 to 32768 [ 230.443212][ T6930] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.444341][ T6930] CPU: 1 PID: 6930 Comm: syz.1.616 Not tainted syzkaller #0 [ 230.445427][ T6930] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 230.446920][ T6930] Call trace: [ 230.447341][ T6930] dump_backtrace+0x0/0x43c [ 230.448025][ T6930] show_stack+0x2c/0x3c [ 230.448669][ T6930] __dump_stack+0x30/0x40 [ 230.449330][ T6930] dump_stack_lvl+0xf8/0x160 [ 230.450059][ T6930] dump_stack+0x1c/0x5c [ 230.450665][ T6930] sysfs_create_dir_ns+0x22c/0x24c [ 230.451456][ T6930] kobject_add_internal+0x590/0xc54 [ 230.452287][ T6930] kobject_init_and_add+0x118/0x17c [ 230.453022][ T6930] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.453769][ T6930] gfs2_fill_super+0xdac/0x19e0 [ 230.454556][ T6930] get_tree_bdev+0x358/0x544 [ 230.455259][ T6930] gfs2_get_tree+0x54/0x1b4 [ 230.455882][ T6930] vfs_get_tree+0x90/0x274 [ 230.456508][ T6930] do_new_mount+0x228/0x810 [ 230.457174][ T6930] path_mount+0x5b4/0x1000 [ 230.457867][ T6930] __arm64_sys_mount+0x514/0x5e4 [ 230.458644][ T6930] invoke_syscall+0x98/0x2b8 [ 230.459325][ T6930] el0_svc_common+0x138/0x258 [ 230.459967][ T6930] do_el0_svc+0x58/0x14c [ 230.460597][ T6930] el0_svc+0x78/0x1e0 [ 230.461195][ T6930] el0t_64_sync_handler+0xcc/0xe4 [ 230.461982][ T6930] el0t_64_sync+0x1a0/0x1a4 [ 230.463288][ T6930] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.465322][ T6930] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.631370][ T6933] loop1: detected capacity change from 0 to 32768 [ 230.639336][ T6933] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.640584][ T6933] CPU: 0 PID: 6933 Comm: syz.1.617 Not tainted syzkaller #0 [ 230.641753][ T6933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 230.643298][ T6933] Call trace: [ 230.643761][ T6933] dump_backtrace+0x0/0x43c [ 230.644461][ T6933] show_stack+0x2c/0x3c [ 230.645052][ T6933] __dump_stack+0x30/0x40 [ 230.645718][ T6933] dump_stack_lvl+0xf8/0x160 [ 230.646378][ T6933] dump_stack+0x1c/0x5c [ 230.646990][ T6933] sysfs_create_dir_ns+0x22c/0x24c [ 230.647714][ T6933] kobject_add_internal+0x590/0xc54 [ 230.648512][ T6933] kobject_init_and_add+0x118/0x17c [ 230.649288][ T6933] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.650008][ T6933] gfs2_fill_super+0xdac/0x19e0 [ 230.650702][ T6933] get_tree_bdev+0x358/0x544 [ 230.651400][ T6933] gfs2_get_tree+0x54/0x1b4 [ 230.652062][ T6933] vfs_get_tree+0x90/0x274 [ 230.652678][ T6933] do_new_mount+0x228/0x810 [ 230.653388][ T6933] path_mount+0x5b4/0x1000 [ 230.654074][ T6933] __arm64_sys_mount+0x514/0x5e4 [ 230.654754][ T6933] invoke_syscall+0x98/0x2b8 [ 230.655475][ T6933] el0_svc_common+0x138/0x258 [ 230.656153][ T6933] do_el0_svc+0x58/0x14c [ 230.656810][ T6933] el0_svc+0x78/0x1e0 [ 230.657399][ T6933] el0t_64_sync_handler+0xcc/0xe4 [ 230.658158][ T6933] el0t_64_sync+0x1a0/0x1a4 [ 230.661679][ T6933] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.664211][ T6933] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.740527][ T6936] chnl_net:caif_netlink_parms(): no params data found [ 230.759359][ T6936] bridge0: port 1(bridge_slave_0) entered blocking state [ 230.760551][ T6936] bridge0: port 1(bridge_slave_0) entered disabled state [ 230.762791][ T6936] device bridge_slave_0 entered promiscuous mode [ 230.764910][ T6936] bridge0: port 2(bridge_slave_1) entered blocking state [ 230.766110][ T6936] bridge0: port 2(bridge_slave_1) entered disabled state [ 230.767618][ T6936] device bridge_slave_1 entered promiscuous mode [ 230.776154][ T6936] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 230.778628][ T6936] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 230.787687][ T6936] team0: Port device team_slave_0 added [ 230.789530][ T6936] team0: Port device team_slave_1 added [ 230.796503][ T6936] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 230.797541][ T6936] 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. [ 230.801358][ T6936] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 230.803840][ T6936] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 230.804880][ T6936] 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. [ 230.808592][ T6936] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 230.843242][ T6936] device hsr_slave_0 entered promiscuous mode [ 230.892047][ T6936] device hsr_slave_1 entered promiscuous mode [ 230.931829][ T6936] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 230.932932][ T6936] Cannot create hsr debugfs directory [ 230.975108][ T6936] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 231.444364][ T6936] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 231.489844][ T6936] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 231.556384][ T6936] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 231.686753][ T6936] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 231.749370][ T6936] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 231.784069][ T6936] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 231.846685][ T6936] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 231.914441][ T6936] 8021q: adding VLAN 0 to HW filter on device bond0 [ 231.918830][ T4806] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 231.920260][ T4806] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 231.928784][ T6936] 8021q: adding VLAN 0 to HW filter on device team0 [ 231.932130][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 231.933824][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 231.935338][ T1670] bridge0: port 1(bridge_slave_0) entered blocking state [ 231.936412][ T1670] bridge0: port 1(bridge_slave_0) entered forwarding state [ 231.939428][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 231.940894][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 231.943670][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 231.945213][ T1670] bridge0: port 2(bridge_slave_1) entered blocking state [ 231.946402][ T1670] bridge0: port 2(bridge_slave_1) entered forwarding state [ 231.948931][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 231.951666][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 231.955181][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 231.956888][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 231.958691][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 231.961369][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 231.963952][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 231.970121][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 231.971743][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 231.974613][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 231.976244][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 231.979027][ T6936] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 232.023891][ T395] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 232.025220][ T395] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 232.028513][ T6936] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 232.035921][ T395] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 232.037635][ T395] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 232.044760][ T395] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 232.046406][ T395] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 232.048066][ T395] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 232.049526][ T395] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 232.052186][ T6936] device veth0_vlan entered promiscuous mode [ 232.056436][ T6936] device veth1_vlan entered promiscuous mode [ 232.064209][ T395] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 232.065747][ T395] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 232.067176][ T395] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 232.068827][ T395] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 232.071689][ T6936] device veth0_macvtap entered promiscuous mode [ 232.079657][ T6936] device veth1_macvtap entered promiscuous mode [ 232.085962][ T6936] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 232.087571][ T6936] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 232.089163][ T6936] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 232.090785][ T6936] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 232.094277][ T6936] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 232.095615][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 232.097234][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 232.098721][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 232.100305][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 232.103237][ T6936] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 232.104683][ T6936] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 232.106067][ T6936] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 232.107564][ T6936] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 232.109498][ T6936] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 232.110608][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 232.113040][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 232.115529][ T6936] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 232.116816][ T6936] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 232.118129][ T6936] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 232.119373][ T6936] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 232.147992][ T395] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 232.149243][ T395] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 232.150751][ T1670] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 232.160203][ T1670] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 232.161541][ T1670] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 232.163882][ T4806] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:03:52 executed programs: 604 [ 232.310503][ T6955] loop1: detected capacity change from 0 to 32768 [ 232.319642][ T6955] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.320876][ T6955] CPU: 1 PID: 6955 Comm: syz.1.618 Not tainted syzkaller #0 [ 232.322126][ T6955] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 232.323755][ T6955] Call trace: [ 232.324324][ T6955] dump_backtrace+0x0/0x43c [ 232.325038][ T6955] show_stack+0x2c/0x3c [ 232.325672][ T6955] __dump_stack+0x30/0x40 [ 232.326396][ T6955] dump_stack_lvl+0xf8/0x160 [ 232.327139][ T6955] dump_stack+0x1c/0x5c [ 232.327819][ T6955] sysfs_create_dir_ns+0x22c/0x24c [ 232.328601][ T6955] kobject_add_internal+0x590/0xc54 [ 232.329372][ T6955] kobject_init_and_add+0x118/0x17c [ 232.330121][ T6955] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.330848][ T6955] gfs2_fill_super+0xdac/0x19e0 [ 232.331621][ T6955] get_tree_bdev+0x358/0x544 [ 232.332304][ T6955] gfs2_get_tree+0x54/0x1b4 [ 232.332958][ T6955] vfs_get_tree+0x90/0x274 [ 232.333654][ T6955] do_new_mount+0x228/0x810 [ 232.334329][ T6955] path_mount+0x5b4/0x1000 [ 232.335018][ T6955] __arm64_sys_mount+0x514/0x5e4 [ 232.335737][ T6955] invoke_syscall+0x98/0x2b8 [ 232.336414][ T6955] el0_svc_common+0x138/0x258 [ 232.337117][ T6955] do_el0_svc+0x58/0x14c [ 232.337752][ T6955] el0_svc+0x78/0x1e0 [ 232.338378][ T6955] el0t_64_sync_handler+0xcc/0xe4 [ 232.339086][ T6955] el0t_64_sync+0x1a0/0x1a4 [ 232.339941][ T6955] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.342230][ T6955] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.581613][ T6958] loop1: detected capacity change from 0 to 32768 [ 232.645895][ T6958] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.647128][ T6958] CPU: 1 PID: 6958 Comm: syz.1.619 Not tainted syzkaller #0 [ 232.648240][ T6958] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 232.649787][ T6958] Call trace: [ 232.650253][ T6958] dump_backtrace+0x0/0x43c [ 232.650939][ T6958] show_stack+0x2c/0x3c [ 232.651525][ T6958] __dump_stack+0x30/0x40 [ 232.652194][ T6958] dump_stack_lvl+0xf8/0x160 [ 232.652898][ T6958] dump_stack+0x1c/0x5c [ 232.653583][ T6958] sysfs_create_dir_ns+0x22c/0x24c [ 232.654387][ T6958] kobject_add_internal+0x590/0xc54 [ 232.655160][ T6958] kobject_init_and_add+0x118/0x17c [ 232.655994][ T6958] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.656707][ T6958] gfs2_fill_super+0xdac/0x19e0 [ 232.657356][ T6958] get_tree_bdev+0x358/0x544 [ 232.658002][ T6958] gfs2_get_tree+0x54/0x1b4 [ 232.658651][ T6958] vfs_get_tree+0x90/0x274 [ 232.659353][ T6958] do_new_mount+0x228/0x810 [ 232.660024][ T6958] path_mount+0x5b4/0x1000 [ 232.660679][ T6958] __arm64_sys_mount+0x514/0x5e4 [ 232.661362][ T6958] invoke_syscall+0x98/0x2b8 [ 232.662064][ T6958] el0_svc_common+0x138/0x258 [ 232.662772][ T6958] do_el0_svc+0x58/0x14c [ 232.663396][ T6958] el0_svc+0x78/0x1e0 [ 232.663955][ T6958] el0t_64_sync_handler+0xcc/0xe4 [ 232.664733][ T6958] el0t_64_sync+0x1a0/0x1a4 [ 232.667299][ T6958] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.669389][ T6958] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.742112][ T4143] Bluetooth: hci2: command 0x0409 tx timeout [ 232.806995][ T6961] loop1: detected capacity change from 0 to 32768 [ 232.827676][ T148] device hsr_slave_0 left promiscuous mode [ 232.842958][ T6961] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.844115][ T6961] CPU: 0 PID: 6961 Comm: syz.1.620 Not tainted syzkaller #0 [ 232.845200][ T6961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 232.846670][ T6961] Call trace: [ 232.847146][ T6961] dump_backtrace+0x0/0x43c [ 232.847822][ T6961] show_stack+0x2c/0x3c [ 232.848432][ T6961] __dump_stack+0x30/0x40 [ 232.849076][ T6961] dump_stack_lvl+0xf8/0x160 [ 232.849742][ T6961] dump_stack+0x1c/0x5c [ 232.850339][ T6961] sysfs_create_dir_ns+0x22c/0x24c [ 232.851076][ T6961] kobject_add_internal+0x590/0xc54 [ 232.851816][ T6961] kobject_init_and_add+0x118/0x17c [ 232.852582][ T6961] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.853284][ T6961] gfs2_fill_super+0xdac/0x19e0 [ 232.853985][ T6961] get_tree_bdev+0x358/0x544 [ 232.854644][ T6961] gfs2_get_tree+0x54/0x1b4 [ 232.855281][ T6961] vfs_get_tree+0x90/0x274 [ 232.855914][ T6961] do_new_mount+0x228/0x810 [ 232.856596][ T6961] path_mount+0x5b4/0x1000 [ 232.857228][ T6961] __arm64_sys_mount+0x514/0x5e4 [ 232.857920][ T6961] invoke_syscall+0x98/0x2b8 [ 232.858679][ T6961] el0_svc_common+0x138/0x258 [ 232.859464][ T6961] do_el0_svc+0x58/0x14c [ 232.860132][ T6961] el0_svc+0x78/0x1e0 [ 232.860756][ T6961] el0t_64_sync_handler+0xcc/0xe4 [ 232.861523][ T6961] el0t_64_sync+0x1a0/0x1a4 [ 232.862845][ T148] device hsr_slave_1 left promiscuous mode [ 232.864018][ T6961] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.866055][ T6961] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.941914][ T148] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 232.943139][ T148] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 232.944733][ T148] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 232.945772][ T148] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 232.947146][ T148] device bridge_slave_1 left promiscuous mode [ 232.948086][ T148] bridge0: port 2(bridge_slave_1) entered disabled state [ 232.972912][ T148] device bridge_slave_0 left promiscuous mode [ 232.973901][ T148] bridge0: port 1(bridge_slave_0) entered disabled state [ 233.016577][ T6964] loop1: detected capacity change from 0 to 32768 [ 233.025346][ T6964] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.026863][ T6964] CPU: 1 PID: 6964 Comm: syz.1.621 Not tainted syzkaller #0 [ 233.027945][ T6964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 233.029350][ T6964] Call trace: [ 233.029798][ T6964] dump_backtrace+0x0/0x43c [ 233.030400][ T6964] show_stack+0x2c/0x3c [ 233.030949][ T6964] __dump_stack+0x30/0x40 [ 233.031587][ T6964] dump_stack_lvl+0xf8/0x160 [ 233.032308][ T6964] dump_stack+0x1c/0x5c [ 233.032939][ T6964] sysfs_create_dir_ns+0x22c/0x24c [ 233.033705][ T6964] kobject_add_internal+0x590/0xc54 [ 233.034436][ T6964] kobject_init_and_add+0x118/0x17c [ 233.035137][ T6964] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.035838][ T6964] gfs2_fill_super+0xdac/0x19e0 [ 233.036545][ T6964] get_tree_bdev+0x358/0x544 [ 233.037198][ T6964] gfs2_get_tree+0x54/0x1b4 [ 233.037817][ T6964] vfs_get_tree+0x90/0x274 [ 233.038438][ T6964] do_new_mount+0x228/0x810 [ 233.039064][ T6964] path_mount+0x5b4/0x1000 [ 233.039663][ T6964] __arm64_sys_mount+0x514/0x5e4 [ 233.040343][ T6964] invoke_syscall+0x98/0x2b8 [ 233.040990][ T6964] el0_svc_common+0x138/0x258 [ 233.041675][ T6964] do_el0_svc+0x58/0x14c [ 233.042298][ T6964] el0_svc+0x78/0x1e0 [ 233.042824][ T6964] el0t_64_sync_handler+0xcc/0xe4 [ 233.043512][ T6964] el0t_64_sync+0x1a0/0x1a4 [ 233.044297][ T6964] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.046143][ T6964] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.132041][ T148] device veth1_macvtap left promiscuous mode [ 233.133096][ T148] device veth0_macvtap left promiscuous mode [ 233.134039][ T148] device veth1_vlan left promiscuous mode [ 233.134953][ T148] device veth0_vlan left promiscuous mode [ 233.231521][ T6967] loop1: detected capacity change from 0 to 32768 [ 233.255079][ T148] team0 (unregistering): Port device team_slave_1 removed [ 233.259803][ T148] team0 (unregistering): Port device team_slave_0 removed [ 233.264329][ T148] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 233.278206][ T6967] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.279554][ T6967] CPU: 0 PID: 6967 Comm: syz.1.622 Not tainted syzkaller #0 [ 233.280769][ T6967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 233.282440][ T6967] Call trace: [ 233.282975][ T6967] dump_backtrace+0x0/0x43c [ 233.283647][ T6967] show_stack+0x2c/0x3c [ 233.284256][ T6967] __dump_stack+0x30/0x40 [ 233.284895][ T6967] dump_stack_lvl+0xf8/0x160 [ 233.285602][ T6967] dump_stack+0x1c/0x5c [ 233.286256][ T6967] sysfs_create_dir_ns+0x22c/0x24c [ 233.287019][ T6967] kobject_add_internal+0x590/0xc54 [ 233.287745][ T6967] kobject_init_and_add+0x118/0x17c [ 233.288507][ T6967] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.289199][ T6967] gfs2_fill_super+0xdac/0x19e0 [ 233.289874][ T6967] get_tree_bdev+0x358/0x544 [ 233.290512][ T6967] gfs2_get_tree+0x54/0x1b4 [ 233.291185][ T6967] vfs_get_tree+0x90/0x274 [ 233.291849][ T6967] do_new_mount+0x228/0x810 [ 233.292527][ T6967] path_mount+0x5b4/0x1000 [ 233.293148][ T6967] __arm64_sys_mount+0x514/0x5e4 [ 233.293928][ T6967] invoke_syscall+0x98/0x2b8 [ 233.294625][ T6967] el0_svc_common+0x138/0x258 [ 233.295326][ T6967] do_el0_svc+0x58/0x14c [ 233.295954][ T6967] el0_svc+0x78/0x1e0 [ 233.296545][ T6967] el0t_64_sync_handler+0xcc/0xe4 [ 233.297305][ T6967] el0t_64_sync+0x1a0/0x1a4 [ 233.300375][ T6967] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.303880][ T6967] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.310191][ T148] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 233.415439][ T148] bond0 (unregistering): Released all slaves [ 233.488624][ T6970] loop1: detected capacity change from 0 to 32768 [ 233.543301][ T6970] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.544512][ T6970] CPU: 1 PID: 6970 Comm: syz.1.623 Not tainted syzkaller #0 [ 233.545629][ T6970] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 233.547101][ T6970] Call trace: [ 233.547617][ T6970] dump_backtrace+0x0/0x43c [ 233.548235][ T6970] show_stack+0x2c/0x3c [ 233.548867][ T6970] __dump_stack+0x30/0x40 [ 233.549535][ T6970] dump_stack_lvl+0xf8/0x160 [ 233.550182][ T6970] dump_stack+0x1c/0x5c [ 233.550838][ T6970] sysfs_create_dir_ns+0x22c/0x24c [ 233.551618][ T6970] kobject_add_internal+0x590/0xc54 [ 233.552379][ T6970] kobject_init_and_add+0x118/0x17c [ 233.553226][ T6970] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.554010][ T6970] gfs2_fill_super+0xdac/0x19e0 [ 233.554785][ T6970] get_tree_bdev+0x358/0x544 [ 233.555487][ T6970] gfs2_get_tree+0x54/0x1b4 [ 233.556216][ T6970] vfs_get_tree+0x90/0x274 [ 233.556942][ T6970] do_new_mount+0x228/0x810 [ 233.557582][ T6970] path_mount+0x5b4/0x1000 [ 233.558185][ T6970] __arm64_sys_mount+0x514/0x5e4 [ 233.558979][ T6970] invoke_syscall+0x98/0x2b8 [ 233.559652][ T6970] el0_svc_common+0x138/0x258 [ 233.560455][ T6970] do_el0_svc+0x58/0x14c [ 233.561167][ T6970] el0_svc+0x78/0x1e0 [ 233.561746][ T6970] el0t_64_sync_handler+0xcc/0xe4 [ 233.562506][ T6970] el0t_64_sync+0x1a0/0x1a4 [ 233.565995][ T6970] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.568053][ T6970] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.747182][ T6973] loop1: detected capacity change from 0 to 32768 [ 233.790857][ T6973] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.792178][ T6973] CPU: 1 PID: 6973 Comm: syz.1.624 Not tainted syzkaller #0 [ 233.793309][ T6973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 233.794758][ T6973] Call trace: [ 233.795203][ T6973] dump_backtrace+0x0/0x43c [ 233.795844][ T6973] show_stack+0x2c/0x3c [ 233.796448][ T6973] __dump_stack+0x30/0x40 [ 233.797062][ T6973] dump_stack_lvl+0xf8/0x160 [ 233.797746][ T6973] dump_stack+0x1c/0x5c [ 233.798386][ T6973] sysfs_create_dir_ns+0x22c/0x24c [ 233.799140][ T6973] kobject_add_internal+0x590/0xc54 [ 233.799939][ T6973] kobject_init_and_add+0x118/0x17c [ 233.800714][ T6973] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.801461][ T6973] gfs2_fill_super+0xdac/0x19e0 [ 233.802193][ T6973] get_tree_bdev+0x358/0x544 [ 233.802891][ T6973] gfs2_get_tree+0x54/0x1b4 [ 233.803560][ T6973] vfs_get_tree+0x90/0x274 [ 233.804200][ T6973] do_new_mount+0x228/0x810 [ 233.804854][ T6973] path_mount+0x5b4/0x1000 [ 233.805488][ T6973] __arm64_sys_mount+0x514/0x5e4 [ 233.806233][ T6973] invoke_syscall+0x98/0x2b8 [ 233.806896][ T6973] el0_svc_common+0x138/0x258 [ 233.807592][ T6973] do_el0_svc+0x58/0x14c [ 233.808209][ T6973] el0_svc+0x78/0x1e0 [ 233.808770][ T6973] el0t_64_sync_handler+0xcc/0xe4 [ 233.809521][ T6973] el0t_64_sync+0x1a0/0x1a4 [ 233.812083][ T6973] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.814175][ T6973] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.953530][ T6976] loop1: detected capacity change from 0 to 32768 [ 233.996815][ T6976] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.997973][ T6976] CPU: 1 PID: 6976 Comm: syz.1.625 Not tainted syzkaller #0 [ 233.999048][ T6976] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 234.000609][ T6976] Call trace: [ 234.001052][ T6976] dump_backtrace+0x0/0x43c [ 234.001739][ T6976] show_stack+0x2c/0x3c [ 234.002347][ T6976] __dump_stack+0x30/0x40 [ 234.002989][ T6976] dump_stack_lvl+0xf8/0x160 [ 234.003682][ T6976] dump_stack+0x1c/0x5c [ 234.004281][ T6976] sysfs_create_dir_ns+0x22c/0x24c [ 234.005034][ T6976] kobject_add_internal+0x590/0xc54 [ 234.005776][ T6976] kobject_init_and_add+0x118/0x17c [ 234.006655][ T6976] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.007394][ T6976] gfs2_fill_super+0xdac/0x19e0 [ 234.008126][ T6976] get_tree_bdev+0x358/0x544 [ 234.008802][ T6976] gfs2_get_tree+0x54/0x1b4 [ 234.009394][ T6976] vfs_get_tree+0x90/0x274 [ 234.010085][ T6976] do_new_mount+0x228/0x810 [ 234.010730][ T6976] path_mount+0x5b4/0x1000 [ 234.011350][ T6976] __arm64_sys_mount+0x514/0x5e4 [ 234.012051][ T6976] invoke_syscall+0x98/0x2b8 [ 234.012751][ T6976] el0_svc_common+0x138/0x258 [ 234.013464][ T6976] do_el0_svc+0x58/0x14c [ 234.014139][ T6976] el0_svc+0x78/0x1e0 [ 234.014715][ T6976] el0t_64_sync_handler+0xcc/0xe4 [ 234.015457][ T6976] el0t_64_sync+0x1a0/0x1a4 [ 234.018361][ T6976] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.020489][ T6976] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.269761][ T6979] loop1: detected capacity change from 0 to 32768 [ 234.308008][ T6979] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.309345][ T6979] CPU: 0 PID: 6979 Comm: syz.1.626 Not tainted syzkaller #0 [ 234.310430][ T6979] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 234.311869][ T6979] Call trace: [ 234.312359][ T6979] dump_backtrace+0x0/0x43c [ 234.313042][ T6979] show_stack+0x2c/0x3c [ 234.313678][ T6979] __dump_stack+0x30/0x40 [ 234.314304][ T6979] dump_stack_lvl+0xf8/0x160 [ 234.315017][ T6979] dump_stack+0x1c/0x5c [ 234.315608][ T6979] sysfs_create_dir_ns+0x22c/0x24c [ 234.316362][ T6979] kobject_add_internal+0x590/0xc54 [ 234.317134][ T6979] kobject_init_and_add+0x118/0x17c [ 234.317866][ T6979] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.318597][ T6979] gfs2_fill_super+0xdac/0x19e0 [ 234.319311][ T6979] get_tree_bdev+0x358/0x544 [ 234.320053][ T6979] gfs2_get_tree+0x54/0x1b4 [ 234.320732][ T6979] vfs_get_tree+0x90/0x274 [ 234.321382][ T6979] do_new_mount+0x228/0x810 [ 234.322123][ T6979] path_mount+0x5b4/0x1000 [ 234.322810][ T6979] __arm64_sys_mount+0x514/0x5e4 [ 234.323525][ T6979] invoke_syscall+0x98/0x2b8 [ 234.324171][ T6979] el0_svc_common+0x138/0x258 [ 234.324869][ T6979] do_el0_svc+0x58/0x14c [ 234.325488][ T6979] el0_svc+0x78/0x1e0 [ 234.326074][ T6979] el0t_64_sync_handler+0xcc/0xe4 [ 234.326795][ T6979] el0t_64_sync+0x1a0/0x1a4 [ 234.329086][ T6979] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.331043][ T6979] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.468267][ T6982] loop1: detected capacity change from 0 to 32768 [ 234.548706][ T6982] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.549906][ T6982] CPU: 1 PID: 6982 Comm: syz.1.627 Not tainted syzkaller #0 [ 234.551132][ T6982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 234.552791][ T6982] Call trace: [ 234.553349][ T6982] dump_backtrace+0x0/0x43c [ 234.554046][ T6982] show_stack+0x2c/0x3c [ 234.554693][ T6982] __dump_stack+0x30/0x40 [ 234.555371][ T6982] dump_stack_lvl+0xf8/0x160 [ 234.556081][ T6982] dump_stack+0x1c/0x5c [ 234.556736][ T6982] sysfs_create_dir_ns+0x22c/0x24c [ 234.557502][ T6982] kobject_add_internal+0x590/0xc54 [ 234.558354][ T6982] kobject_init_and_add+0x118/0x17c [ 234.559200][ T6982] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.559868][ T6982] gfs2_fill_super+0xdac/0x19e0 [ 234.560588][ T6982] get_tree_bdev+0x358/0x544 [ 234.561266][ T6982] gfs2_get_tree+0x54/0x1b4 [ 234.561906][ T6982] vfs_get_tree+0x90/0x274 [ 234.562525][ T6982] do_new_mount+0x228/0x810 [ 234.563175][ T6982] path_mount+0x5b4/0x1000 [ 234.563819][ T6982] __arm64_sys_mount+0x514/0x5e4 [ 234.564493][ T6982] invoke_syscall+0x98/0x2b8 [ 234.565131][ T6982] el0_svc_common+0x138/0x258 [ 234.565793][ T6982] do_el0_svc+0x58/0x14c [ 234.566431][ T6982] el0_svc+0x78/0x1e0 [ 234.567004][ T6982] el0t_64_sync_handler+0xcc/0xe4 [ 234.567737][ T6982] el0t_64_sync+0x1a0/0x1a4 [ 234.587297][ T6982] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.589367][ T6982] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.821860][ T4143] Bluetooth: hci2: command 0x041b tx timeout [ 234.890741][ T6985] loop1: detected capacity change from 0 to 32768 [ 234.944003][ T6985] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.945233][ T6985] CPU: 1 PID: 6985 Comm: syz.1.628 Not tainted syzkaller #0 [ 234.946385][ T6985] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 234.947950][ T6985] Call trace: [ 234.948444][ T6985] dump_backtrace+0x0/0x43c [ 234.949093][ T6985] show_stack+0x2c/0x3c [ 234.949692][ T6985] __dump_stack+0x30/0x40 [ 234.950322][ T6985] dump_stack_lvl+0xf8/0x160 [ 234.951016][ T6985] dump_stack+0x1c/0x5c [ 234.951654][ T6985] sysfs_create_dir_ns+0x22c/0x24c [ 234.952437][ T6985] kobject_add_internal+0x590/0xc54 [ 234.953239][ T6985] kobject_init_and_add+0x118/0x17c [ 234.953972][ T6985] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.954698][ T6985] gfs2_fill_super+0xdac/0x19e0 [ 234.955404][ T6985] get_tree_bdev+0x358/0x544 [ 234.956078][ T6985] gfs2_get_tree+0x54/0x1b4 [ 234.956730][ T6985] vfs_get_tree+0x90/0x274 [ 234.957438][ T6985] do_new_mount+0x228/0x810 [ 234.958125][ T6985] path_mount+0x5b4/0x1000 [ 234.958809][ T6985] __arm64_sys_mount+0x514/0x5e4 [ 234.959539][ T6985] invoke_syscall+0x98/0x2b8 [ 234.960232][ T6985] el0_svc_common+0x138/0x258 [ 234.960937][ T6985] do_el0_svc+0x58/0x14c [ 234.961679][ T6985] el0_svc+0x78/0x1e0 [ 234.962291][ T6985] el0t_64_sync_handler+0xcc/0xe4 [ 234.963025][ T6985] el0t_64_sync+0x1a0/0x1a4 [ 234.965322][ T6985] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.967362][ T6985] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.122384][ T6988] loop1: detected capacity change from 0 to 32768 [ 235.130117][ T6988] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.131340][ T6988] CPU: 0 PID: 6988 Comm: syz.1.629 Not tainted syzkaller #0 [ 235.132478][ T6988] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 235.134027][ T6988] Call trace: [ 235.134514][ T6988] dump_backtrace+0x0/0x43c [ 235.135218][ T6988] show_stack+0x2c/0x3c [ 235.135857][ T6988] __dump_stack+0x30/0x40 [ 235.136486][ T6988] dump_stack_lvl+0xf8/0x160 [ 235.137179][ T6988] dump_stack+0x1c/0x5c [ 235.137842][ T6988] sysfs_create_dir_ns+0x22c/0x24c [ 235.138595][ T6988] kobject_add_internal+0x590/0xc54 [ 235.139381][ T6988] kobject_init_and_add+0x118/0x17c [ 235.140134][ T6988] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.140840][ T6988] gfs2_fill_super+0xdac/0x19e0 [ 235.141551][ T6988] get_tree_bdev+0x358/0x544 [ 235.142238][ T6988] gfs2_get_tree+0x54/0x1b4 [ 235.142954][ T6988] vfs_get_tree+0x90/0x274 [ 235.143628][ T6988] do_new_mount+0x228/0x810 [ 235.144321][ T6988] path_mount+0x5b4/0x1000 [ 235.144978][ T6988] __arm64_sys_mount+0x514/0x5e4 [ 235.145627][ T6988] invoke_syscall+0x98/0x2b8 [ 235.146302][ T6988] el0_svc_common+0x138/0x258 [ 235.146953][ T6988] do_el0_svc+0x58/0x14c [ 235.147585][ T6988] el0_svc+0x78/0x1e0 [ 235.148172][ T6988] el0t_64_sync_handler+0xcc/0xe4 [ 235.148875][ T6988] el0t_64_sync+0x1a0/0x1a4 [ 235.150257][ T6988] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.152392][ T6988] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.291866][ T6991] loop1: detected capacity change from 0 to 32768 [ 235.299678][ T6991] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.300870][ T6991] CPU: 0 PID: 6991 Comm: syz.1.630 Not tainted syzkaller #0 [ 235.301967][ T6991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 235.303617][ T6991] Call trace: [ 235.304111][ T6991] dump_backtrace+0x0/0x43c [ 235.304826][ T6991] show_stack+0x2c/0x3c [ 235.305475][ T6991] __dump_stack+0x30/0x40 [ 235.306128][ T6991] dump_stack_lvl+0xf8/0x160 [ 235.306809][ T6991] dump_stack+0x1c/0x5c [ 235.307403][ T6991] sysfs_create_dir_ns+0x22c/0x24c [ 235.308197][ T6991] kobject_add_internal+0x590/0xc54 [ 235.308905][ T6991] kobject_init_and_add+0x118/0x17c [ 235.309599][ T6991] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.310311][ T6991] gfs2_fill_super+0xdac/0x19e0 [ 235.311010][ T6991] get_tree_bdev+0x358/0x544 [ 235.311700][ T6991] gfs2_get_tree+0x54/0x1b4 [ 235.312343][ T6991] vfs_get_tree+0x90/0x274 [ 235.313056][ T6991] do_new_mount+0x228/0x810 [ 235.313710][ T6991] path_mount+0x5b4/0x1000 [ 235.314321][ T6991] __arm64_sys_mount+0x514/0x5e4 [ 235.315048][ T6991] invoke_syscall+0x98/0x2b8 [ 235.315758][ T6991] el0_svc_common+0x138/0x258 [ 235.316421][ T6991] do_el0_svc+0x58/0x14c [ 235.317070][ T6991] el0_svc+0x78/0x1e0 [ 235.317654][ T6991] el0t_64_sync_handler+0xcc/0xe4 [ 235.318413][ T6991] el0t_64_sync+0x1a0/0x1a4 [ 235.319614][ T6991] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.321602][ T6991] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.391926][ T27] INFO: task syz-executor:4884 blocked for more than 143 seconds. [ 235.393241][ T27] Not tainted syzkaller #0 [ 235.393969][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 235.395227][ T27] task:syz-executor state:D stack: 0 pid: 4884 ppid: 1 flags:0x00000001 [ 235.396625][ T27] Call trace: [ 235.397146][ T27] __switch_to+0x2f4/0x558 [ 235.397850][ T27] __schedule+0xe08/0x1bf8 [ 235.398554][ T27] schedule+0x11c/0x1c8 [ 235.399177][ T27] bit_wait+0x1c/0xac [ 235.399785][ T27] out_of_line_wait_on_bit+0x15c/0x200 [ 235.400683][ T27] gfs2_glock_nq+0x8f8/0x141c [ 235.401483][ T27] __gfs2_lookup+0x110/0x268 [ 235.403629][ T27] gfs2_lookup+0x2c/0x3c [ 235.404282][ T27] __lookup_slow+0x24c/0x380 [ 235.405070][ T27] lookup_slow+0x5c/0x80 [ 235.405729][ T27] walk_component+0x2b0/0x3a8 [ 235.406453][ T27] path_lookupat+0x13c/0x3d0 [ 235.407188][ T27] filename_lookup+0x180/0x414 [ 235.407911][ T27] user_path_at_empty+0x5c/0x1a0 [ 235.408730][ T27] __arm64_sys_umount+0xf4/0x178 [ 235.409537][ T27] invoke_syscall+0x98/0x2b8 [ 235.410351][ T27] el0_svc_common+0x138/0x258 [ 235.411178][ T27] do_el0_svc+0x58/0x14c [ 235.412808][ T27] el0_svc+0x78/0x1e0 [ 235.413468][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 235.414384][ T27] el0t_64_sync+0x1a0/0x1a4 [ 235.415168][ T27] [ 235.415168][ T27] Showing all locks held in the system: [ 235.416398][ T27] 1 lock held by khungtaskd/27: [ 235.417164][ T27] #0: ffff8000142f1520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 235.418721][ T27] 2 locks held by getty/3805: [ 235.419409][ T27] #0: ffff0000d4a0b098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 235.420909][ T27] #1: ffff80001bbce2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 235.423289][ T27] 3 locks held by kworker/0:5/4783: [ 235.424087][ T27] #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 [ 235.425888][ T27] #1: ffff80001f247c00 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 [ 235.427689][ T27] #2: ffff0000cde64240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1c8/0x2704 [ 235.429272][ T27] 1 lock held by syz-executor/4884: [ 235.430179][ T27] #0: ffff0000dd77d2b0 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 [ 235.432239][ T27] 2 locks held by syz.1.631/6994: [ 235.433057][ T27] [ 235.433457][ T27] ============================================= [ 235.433457][ T27] [ 235.434694][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 235.435689][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 235.436768][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 235.438349][ T27] Call trace: [ 235.438912][ T27] dump_backtrace+0x0/0x43c [ 235.439633][ T27] show_stack+0x2c/0x3c [ 235.440337][ T27] __dump_stack+0x30/0x40 [ 235.441111][ T27] dump_stack_lvl+0xf8/0x160 [ 235.441887][ T27] dump_stack+0x1c/0x5c [ 235.442462][ T27] panic+0x2e4/0x854 [ 235.443041][ T27] hung_task_panic+0x0/0x2c [ 235.443666][ T27] kthread+0x374/0x454 [ 235.444279][ T27] ret_from_fork+0x10/0x20 [ 235.444898][ T27] SMP: stopping secondary CPUs [ 235.445546][ T27] Kernel Offset: disabled [ 235.446107][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 235.446911][ T27] Memory Limit: none [ 235.793287][ T27] Rebooting in 86400 seconds..