6224] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.838715][ T6224] CPU: 1 PID: 6224 Comm: syz.1.625 Not tainted syzkaller #0 [ 214.839873][ T6224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 214.841503][ T6224] Call trace: [ 214.842001][ T6224] dump_backtrace+0x0/0x458 [ 214.842701][ T6224] show_stack+0x2c/0x3c [ 214.843410][ T6224] __dump_stack+0x30/0x40 [ 214.844143][ T6224] dump_stack_lvl+0xf4/0x15c [ 214.844898][ T6224] dump_stack+0x1c/0x5c [ 214.845567][ T6224] sysfs_create_dir_ns+0x244/0x264 [ 214.846373][ T6224] kobject_add_internal+0x5ac/0xc3c [ 214.847191][ T6224] kobject_init_and_add+0x124/0x190 [ 214.847986][ T6224] gfs2_sys_fs_add+0x200/0x41c [ 214.848799][ T6224] gfs2_fill_super+0xddc/0x1a18 [ 214.849548][ T6224] get_tree_bdev+0x358/0x544 [ 214.850344][ T6224] gfs2_get_tree+0x54/0x1b4 [ 214.851053][ T6224] vfs_get_tree+0x90/0x274 [ 214.851708][ T6224] do_new_mount+0x228/0x810 [ 214.852373][ T6224] path_mount+0x5bc/0x1008 [ 214.853055][ T6224] __arm64_sys_mount+0x514/0x5f0 [ 214.853779][ T6224] invoke_syscall+0x98/0x2b0 [ 214.854516][ T6224] el0_svc_common+0x138/0x258 [ 214.855256][ T6224] do_el0_svc+0x58/0x13c [ 214.855870][ T6224] el0_svc+0x78/0x1d0 [ 214.856467][ T6224] el0t_64_sync_handler+0xcc/0xe4 [ 214.857236][ T6224] el0t_64_sync+0x1a0/0x1a4 [ 214.858429][ T6224] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.860535][ T6224] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.993894][ T6226] loop1: detected capacity change from 0 to 32768 [ 215.003689][ T6226] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.004845][ T6226] CPU: 0 PID: 6226 Comm: syz.1.626 Not tainted syzkaller #0 [ 215.006037][ T6226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 215.007716][ T6226] Call trace: [ 215.008261][ T6226] dump_backtrace+0x0/0x458 [ 215.008970][ T6226] show_stack+0x2c/0x3c [ 215.009647][ T6226] __dump_stack+0x30/0x40 [ 215.010392][ T6226] dump_stack_lvl+0xf4/0x15c [ 215.011150][ T6226] dump_stack+0x1c/0x5c [ 215.011833][ T6226] sysfs_create_dir_ns+0x244/0x264 [ 215.012738][ T6226] kobject_add_internal+0x5ac/0xc3c [ 215.013530][ T6226] kobject_init_and_add+0x124/0x190 [ 215.014317][ T6226] gfs2_sys_fs_add+0x200/0x41c [ 215.015052][ T6226] gfs2_fill_super+0xddc/0x1a18 [ 215.015836][ T6226] get_tree_bdev+0x358/0x544 [ 215.016574][ T6226] gfs2_get_tree+0x54/0x1b4 [ 215.017293][ T6226] vfs_get_tree+0x90/0x274 [ 215.018033][ T6226] do_new_mount+0x228/0x810 [ 215.018808][ T6226] path_mount+0x5bc/0x1008 [ 215.019545][ T6226] __arm64_sys_mount+0x514/0x5f0 [ 215.020362][ T6226] invoke_syscall+0x98/0x2b0 [ 215.021117][ T6226] el0_svc_common+0x138/0x258 [ 215.021933][ T6226] do_el0_svc+0x58/0x13c [ 215.022682][ T6226] el0_svc+0x78/0x1d0 [ 215.023329][ T6226] el0t_64_sync_handler+0xcc/0xe4 [ 215.024157][ T6226] el0t_64_sync+0x1a0/0x1a4 [ 215.026422][ T6226] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.028819][ T6226] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.156821][ T6228] loop1: detected capacity change from 0 to 32768 [ 215.242236][ T6228] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.243584][ T6228] CPU: 1 PID: 6228 Comm: syz.1.627 Not tainted syzkaller #0 [ 215.244792][ T6228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 215.246304][ T6228] Call trace: [ 215.246817][ T6228] dump_backtrace+0x0/0x458 [ 215.247529][ T6228] show_stack+0x2c/0x3c [ 215.248255][ T6228] __dump_stack+0x30/0x40 [ 215.248996][ T6228] dump_stack_lvl+0xf4/0x15c [ 215.249792][ T6228] dump_stack+0x1c/0x5c [ 215.250466][ T6228] sysfs_create_dir_ns+0x244/0x264 [ 215.251297][ T6228] kobject_add_internal+0x5ac/0xc3c [ 215.252175][ T6228] kobject_init_and_add+0x124/0x190 [ 215.253028][ T6228] gfs2_sys_fs_add+0x200/0x41c [ 215.253825][ T6228] gfs2_fill_super+0xddc/0x1a18 [ 215.254662][ T6228] get_tree_bdev+0x358/0x544 [ 215.255414][ T6228] gfs2_get_tree+0x54/0x1b4 [ 215.256251][ T6228] vfs_get_tree+0x90/0x274 [ 215.256968][ T6228] do_new_mount+0x228/0x810 [ 215.257646][ T6228] path_mount+0x5bc/0x1008 [ 215.258341][ T6228] __arm64_sys_mount+0x514/0x5f0 [ 215.259149][ T6228] invoke_syscall+0x98/0x2b0 [ 215.259915][ T6228] el0_svc_common+0x138/0x258 [ 215.260673][ T6228] do_el0_svc+0x58/0x13c [ 215.261388][ T6228] el0_svc+0x78/0x1d0 [ 215.262040][ T6228] el0t_64_sync_handler+0xcc/0xe4 [ 215.262902][ T6228] el0t_64_sync+0x1a0/0x1a4 [ 215.264135][ T6228] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.266200][ T6228] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.440342][ T6230] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.441627][ T6230] CPU: 1 PID: 6230 Comm: syz.1.628 Not tainted syzkaller #0 [ 215.442778][ T6230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 215.444249][ T6230] Call trace: [ 215.444726][ T6230] dump_backtrace+0x0/0x458 [ 215.445389][ T6230] show_stack+0x2c/0x3c [ 215.445974][ T6230] __dump_stack+0x30/0x40 [ 215.446642][ T6230] dump_stack_lvl+0xf4/0x15c [ 215.447329][ T6230] dump_stack+0x1c/0x5c [ 215.447948][ T6230] sysfs_create_dir_ns+0x244/0x264 [ 215.448739][ T6230] kobject_add_internal+0x5ac/0xc3c [ 215.449540][ T6230] kobject_init_and_add+0x124/0x190 [ 215.450383][ T6230] gfs2_sys_fs_add+0x200/0x41c [ 215.451240][ T6230] gfs2_fill_super+0xddc/0x1a18 [ 215.452014][ T6230] get_tree_bdev+0x358/0x544 [ 215.452770][ T6230] gfs2_get_tree+0x54/0x1b4 [ 215.453482][ T6230] vfs_get_tree+0x90/0x274 [ 215.454143][ T6230] do_new_mount+0x228/0x810 [ 215.454841][ T6230] path_mount+0x5bc/0x1008 [ 215.455526][ T6230] __arm64_sys_mount+0x514/0x5f0 [ 215.456279][ T6230] invoke_syscall+0x98/0x2b0 [ 215.457009][ T6230] el0_svc_common+0x138/0x258 [ 215.457738][ T6230] do_el0_svc+0x58/0x13c [ 215.458475][ T6230] el0_svc+0x78/0x1d0 [ 215.459153][ T6230] el0t_64_sync_handler+0xcc/0xe4 [ 215.459988][ T6230] el0t_64_sync+0x1a0/0x1a4 [ 215.461118][ T6230] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.463385][ T6230] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.659453][ T6232] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.660767][ T6232] CPU: 1 PID: 6232 Comm: syz.1.629 Not tainted syzkaller #0 [ 215.661901][ T6232] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 215.663629][ T6232] Call trace: [ 215.664111][ T6232] dump_backtrace+0x0/0x458 [ 215.664845][ T6232] show_stack+0x2c/0x3c [ 215.665519][ T6232] __dump_stack+0x30/0x40 [ 215.666237][ T6232] dump_stack_lvl+0xf4/0x15c [ 215.666917][ T6232] dump_stack+0x1c/0x5c [ 215.667608][ T6232] sysfs_create_dir_ns+0x244/0x264 [ 215.668420][ T6232] kobject_add_internal+0x5ac/0xc3c [ 215.669300][ T6232] kobject_init_and_add+0x124/0x190 [ 215.670221][ T6232] gfs2_sys_fs_add+0x200/0x41c [ 215.671033][ T6232] gfs2_fill_super+0xddc/0x1a18 [ 215.671815][ T6232] get_tree_bdev+0x358/0x544 [ 215.672532][ T6232] gfs2_get_tree+0x54/0x1b4 [ 215.673261][ T6232] vfs_get_tree+0x90/0x274 [ 215.673990][ T6232] do_new_mount+0x228/0x810 [ 215.674798][ T6232] path_mount+0x5bc/0x1008 [ 215.675625][ T6232] __arm64_sys_mount+0x514/0x5f0 [ 215.676482][ T6232] invoke_syscall+0x98/0x2b0 [ 215.677218][ T6232] el0_svc_common+0x138/0x258 [ 215.677970][ T6232] do_el0_svc+0x58/0x13c [ 215.678665][ T6232] el0_svc+0x78/0x1d0 [ 215.679378][ T6232] el0t_64_sync_handler+0xcc/0xe4 [ 215.680234][ T6232] el0t_64_sync+0x1a0/0x1a4 [ 215.701768][ T6232] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.708359][ T6232] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.864083][ T6234] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.865410][ T6234] CPU: 1 PID: 6234 Comm: syz.1.630 Not tainted syzkaller #0 [ 215.866474][ T6234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 215.868002][ T6234] Call trace: [ 215.868532][ T6234] dump_backtrace+0x0/0x458 [ 215.869259][ T6234] show_stack+0x2c/0x3c [ 215.870013][ T6234] __dump_stack+0x30/0x40 [ 215.870739][ T6234] dump_stack_lvl+0xf4/0x15c [ 215.871508][ T6234] dump_stack+0x1c/0x5c [ 215.872220][ T6234] sysfs_create_dir_ns+0x244/0x264 [ 215.872997][ T6234] kobject_add_internal+0x5ac/0xc3c [ 215.873914][ T6234] kobject_init_and_add+0x124/0x190 [ 215.874787][ T6234] gfs2_sys_fs_add+0x200/0x41c [ 215.875548][ T6234] gfs2_fill_super+0xddc/0x1a18 [ 215.876296][ T6234] get_tree_bdev+0x358/0x544 [ 215.877094][ T6234] gfs2_get_tree+0x54/0x1b4 [ 215.877857][ T6234] vfs_get_tree+0x90/0x274 [ 215.878575][ T6234] do_new_mount+0x228/0x810 [ 215.879328][ T6234] path_mount+0x5bc/0x1008 [ 215.880032][ T6234] __arm64_sys_mount+0x514/0x5f0 [ 215.880726][ T6234] invoke_syscall+0x98/0x2b0 [ 215.881433][ T6234] el0_svc_common+0x138/0x258 [ 215.882101][ T6234] do_el0_svc+0x58/0x13c [ 215.882736][ T6234] el0_svc+0x78/0x1d0 [ 215.883368][ T6234] el0t_64_sync_handler+0xcc/0xe4 [ 215.884132][ T6234] el0t_64_sync+0x1a0/0x1a4 [ 215.887261][ T6234] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.889324][ T6234] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.937942][ T4162] Bluetooth: hci2: command 0x041b tx timeout [ 216.182347][ T6236] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.183604][ T6236] CPU: 0 PID: 6236 Comm: syz.1.631 Not tainted syzkaller #0 [ 216.184753][ T6236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 216.186477][ T6236] Call trace: [ 216.187010][ T6236] dump_backtrace+0x0/0x458 [ 216.187778][ T6236] show_stack+0x2c/0x3c [ 216.188429][ T6236] __dump_stack+0x30/0x40 [ 216.189098][ T6236] dump_stack_lvl+0xf4/0x15c [ 216.189902][ T6236] dump_stack+0x1c/0x5c [ 216.190605][ T6236] sysfs_create_dir_ns+0x244/0x264 [ 216.191441][ T6236] kobject_add_internal+0x5ac/0xc3c [ 216.192234][ T6236] kobject_init_and_add+0x124/0x190 [ 216.193074][ T6236] gfs2_sys_fs_add+0x200/0x41c [ 216.193898][ T6236] gfs2_fill_super+0xddc/0x1a18 [ 216.194697][ T6236] get_tree_bdev+0x358/0x544 [ 216.195607][ T6236] gfs2_get_tree+0x54/0x1b4 [ 216.196331][ T6236] vfs_get_tree+0x90/0x274 [ 216.197113][ T6236] do_new_mount+0x228/0x810 [ 216.197882][ T6236] path_mount+0x5bc/0x1008 [ 216.198644][ T6236] __arm64_sys_mount+0x514/0x5f0 [ 216.199502][ T6236] invoke_syscall+0x98/0x2b0 [ 216.200210][ T6236] el0_svc_common+0x138/0x258 [ 216.200951][ T6236] do_el0_svc+0x58/0x13c [ 216.201640][ T6236] el0_svc+0x78/0x1d0 [ 216.202289][ T6236] el0t_64_sync_handler+0xcc/0xe4 [ 216.203154][ T6236] el0t_64_sync+0x1a0/0x1a4 [ 216.204588][ T6236] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.206654][ T6236] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.399674][ T6238] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.400956][ T6238] CPU: 1 PID: 6238 Comm: syz.1.632 Not tainted syzkaller #0 [ 216.402057][ T6238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 216.403628][ T6238] Call trace: [ 216.404132][ T6238] dump_backtrace+0x0/0x458 [ 216.404830][ T6238] show_stack+0x2c/0x3c [ 216.405459][ T6238] __dump_stack+0x30/0x40 [ 216.406111][ T6238] dump_stack_lvl+0xf4/0x15c [ 216.406897][ T6238] dump_stack+0x1c/0x5c [ 216.407587][ T6238] sysfs_create_dir_ns+0x244/0x264 [ 216.408448][ T6238] kobject_add_internal+0x5ac/0xc3c [ 216.409316][ T6238] kobject_init_and_add+0x124/0x190 [ 216.410174][ T6238] gfs2_sys_fs_add+0x200/0x41c [ 216.410989][ T6238] gfs2_fill_super+0xddc/0x1a18 [ 216.411836][ T6238] get_tree_bdev+0x358/0x544 [ 216.412578][ T6238] gfs2_get_tree+0x54/0x1b4 [ 216.413270][ T6238] vfs_get_tree+0x90/0x274 [ 216.413954][ T6238] do_new_mount+0x228/0x810 [ 216.414627][ T6238] path_mount+0x5bc/0x1008 [ 216.415363][ T6238] __arm64_sys_mount+0x514/0x5f0 [ 216.416248][ T6238] invoke_syscall+0x98/0x2b0 [ 216.416984][ T6238] el0_svc_common+0x138/0x258 [ 216.417752][ T6238] do_el0_svc+0x58/0x13c [ 216.418466][ T6238] el0_svc+0x78/0x1d0 [ 216.419097][ T6238] el0t_64_sync_handler+0xcc/0xe4 [ 216.419956][ T6238] el0t_64_sync+0x1a0/0x1a4 [ 216.421006][ T6238] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.422936][ T6238] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.622502][ T6240] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.623800][ T6240] CPU: 1 PID: 6240 Comm: syz.1.633 Not tainted syzkaller #0 [ 216.625062][ T6240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 216.626723][ T6240] Call trace: [ 216.627242][ T6240] dump_backtrace+0x0/0x458 [ 216.628004][ T6240] show_stack+0x2c/0x3c [ 216.628672][ T6240] __dump_stack+0x30/0x40 [ 216.629350][ T6240] dump_stack_lvl+0xf4/0x15c [ 216.630082][ T6240] dump_stack+0x1c/0x5c [ 216.630761][ T6240] sysfs_create_dir_ns+0x244/0x264 [ 216.631595][ T6240] kobject_add_internal+0x5ac/0xc3c [ 216.632440][ T6240] kobject_init_and_add+0x124/0x190 [ 216.633277][ T6240] gfs2_sys_fs_add+0x200/0x41c [ 216.634065][ T6240] gfs2_fill_super+0xddc/0x1a18 [ 216.634857][ T6240] get_tree_bdev+0x358/0x544 [ 216.635569][ T6240] gfs2_get_tree+0x54/0x1b4 [ 216.636272][ T6240] vfs_get_tree+0x90/0x274 [ 216.636939][ T6240] do_new_mount+0x228/0x810 [ 216.637651][ T6240] path_mount+0x5bc/0x1008 [ 216.638323][ T6240] __arm64_sys_mount+0x514/0x5f0 [ 216.639062][ T6240] invoke_syscall+0x98/0x2b0 [ 216.639717][ T6240] el0_svc_common+0x138/0x258 [ 216.640505][ T6240] do_el0_svc+0x58/0x13c [ 216.641238][ T6240] el0_svc+0x78/0x1d0 [ 216.641952][ T6240] el0t_64_sync_handler+0xcc/0xe4 [ 216.642829][ T6240] el0t_64_sync+0x1a0/0x1a4 [ 216.643807][ T6240] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.647049][ T6240] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.786509][ T6242] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.787671][ T6242] CPU: 0 PID: 6242 Comm: syz.1.634 Not tainted syzkaller #0 [ 216.788834][ T6242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 216.790581][ T6242] Call trace: [ 216.791128][ T6242] dump_backtrace+0x0/0x458 [ 216.791874][ T6242] show_stack+0x2c/0x3c [ 216.792504][ T6242] __dump_stack+0x30/0x40 [ 216.793148][ T6242] dump_stack_lvl+0xf4/0x15c [ 216.793947][ T6242] dump_stack+0x1c/0x5c [ 216.794684][ T6242] sysfs_create_dir_ns+0x244/0x264 [ 216.795580][ T6242] kobject_add_internal+0x5ac/0xc3c [ 216.796510][ T6242] kobject_init_and_add+0x124/0x190 [ 216.797382][ T6242] gfs2_sys_fs_add+0x200/0x41c [ 216.798191][ T6242] gfs2_fill_super+0xddc/0x1a18 [ 216.799028][ T6242] get_tree_bdev+0x358/0x544 [ 216.799786][ T6242] gfs2_get_tree+0x54/0x1b4 [ 216.800474][ T6242] vfs_get_tree+0x90/0x274 [ 216.801185][ T6242] do_new_mount+0x228/0x810 [ 216.801856][ T6242] path_mount+0x5bc/0x1008 [ 216.802598][ T6242] __arm64_sys_mount+0x514/0x5f0 [ 216.803448][ T6242] invoke_syscall+0x98/0x2b0 [ 216.804129][ T6242] el0_svc_common+0x138/0x258 [ 216.804905][ T6242] do_el0_svc+0x58/0x13c [ 216.805597][ T6242] el0_svc+0x78/0x1d0 [ 216.806180][ T6242] el0t_64_sync_handler+0xcc/0xe4 [ 216.806912][ T6242] el0t_64_sync+0x1a0/0x1a4 [ 216.809104][ T6242] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.811197][ T6242] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.029983][ T6244] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.031244][ T6244] CPU: 1 PID: 6244 Comm: syz.1.635 Not tainted syzkaller #0 [ 217.032487][ T6244] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.034114][ T6244] Call trace: [ 217.034620][ T6244] dump_backtrace+0x0/0x458 [ 217.035385][ T6244] show_stack+0x2c/0x3c [ 217.036097][ T6244] __dump_stack+0x30/0x40 [ 217.036811][ T6244] dump_stack_lvl+0xf4/0x15c [ 217.037543][ T6244] dump_stack+0x1c/0x5c [ 217.038283][ T6244] sysfs_create_dir_ns+0x244/0x264 [ 217.039141][ T6244] kobject_add_internal+0x5ac/0xc3c [ 217.040001][ T6244] kobject_init_and_add+0x124/0x190 [ 217.040935][ T6244] gfs2_sys_fs_add+0x200/0x41c [ 217.041723][ T6244] gfs2_fill_super+0xddc/0x1a18 [ 217.042549][ T6244] get_tree_bdev+0x358/0x544 [ 217.043329][ T6244] gfs2_get_tree+0x54/0x1b4 [ 217.044090][ T6244] vfs_get_tree+0x90/0x274 [ 217.044808][ T6244] do_new_mount+0x228/0x810 [ 217.045503][ T6244] path_mount+0x5bc/0x1008 [ 217.046180][ T6244] __arm64_sys_mount+0x514/0x5f0 [ 217.047022][ T6244] invoke_syscall+0x98/0x2b0 [ 217.047767][ T6244] el0_svc_common+0x138/0x258 [ 217.048533][ T6244] do_el0_svc+0x58/0x13c [ 217.049269][ T6244] el0_svc+0x78/0x1d0 [ 217.049907][ T6244] el0t_64_sync_handler+0xcc/0xe4 [ 217.050780][ T6244] el0t_64_sync+0x1a0/0x1a4 [ 217.052032][ T6244] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.053985][ T6244] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.279095][ T6246] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.280227][ T6246] CPU: 0 PID: 6246 Comm: syz.1.636 Not tainted syzkaller #0 [ 217.281301][ T6246] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.282864][ T6246] Call trace: [ 217.283383][ T6246] dump_backtrace+0x0/0x458 [ 217.284147][ T6246] show_stack+0x2c/0x3c [ 217.284782][ T6246] __dump_stack+0x30/0x40 [ 217.285443][ T6246] dump_stack_lvl+0xf4/0x15c [ 217.286223][ T6246] dump_stack+0x1c/0x5c [ 217.287006][ T6246] sysfs_create_dir_ns+0x244/0x264 [ 217.287768][ T6246] kobject_add_internal+0x5ac/0xc3c [ 217.288570][ T6246] kobject_init_and_add+0x124/0x190 [ 217.289365][ T6246] gfs2_sys_fs_add+0x200/0x41c [ 217.290186][ T6246] gfs2_fill_super+0xddc/0x1a18 [ 217.291005][ T6246] get_tree_bdev+0x358/0x544 [ 217.291741][ T6246] gfs2_get_tree+0x54/0x1b4 [ 217.292519][ T6246] vfs_get_tree+0x90/0x274 [ 217.293268][ T6246] do_new_mount+0x228/0x810 [ 217.293991][ T6246] path_mount+0x5bc/0x1008 [ 217.294718][ T6246] __arm64_sys_mount+0x514/0x5f0 [ 217.295609][ T6246] invoke_syscall+0x98/0x2b0 [ 217.296398][ T6246] el0_svc_common+0x138/0x258 [ 217.297259][ T6246] do_el0_svc+0x58/0x13c [ 217.297962][ T6246] el0_svc+0x78/0x1d0 [ 217.298585][ T6246] el0t_64_sync_handler+0xcc/0xe4 [ 217.299375][ T6246] el0t_64_sync+0x1a0/0x1a4 [ 217.302396][ T6246] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.304449][ T6246] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.473720][ T6248] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.475055][ T6248] CPU: 1 PID: 6248 Comm: syz.1.637 Not tainted syzkaller #0 [ 217.476211][ T6248] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.477729][ T6248] Call trace: [ 217.478251][ T6248] dump_backtrace+0x0/0x458 [ 217.478960][ T6248] show_stack+0x2c/0x3c [ 217.479540][ T6248] __dump_stack+0x30/0x40 [ 217.480175][ T6248] dump_stack_lvl+0xf4/0x15c [ 217.480887][ T6248] dump_stack+0x1c/0x5c [ 217.481534][ T6248] sysfs_create_dir_ns+0x244/0x264 [ 217.482307][ T6248] kobject_add_internal+0x5ac/0xc3c [ 217.483178][ T6248] kobject_init_and_add+0x124/0x190 [ 217.484126][ T6248] gfs2_sys_fs_add+0x200/0x41c [ 217.484925][ T6248] gfs2_fill_super+0xddc/0x1a18 [ 217.485729][ T6248] get_tree_bdev+0x358/0x544 [ 217.486461][ T6248] gfs2_get_tree+0x54/0x1b4 [ 217.487172][ T6248] vfs_get_tree+0x90/0x274 [ 217.487828][ T6248] do_new_mount+0x228/0x810 [ 217.488501][ T6248] path_mount+0x5bc/0x1008 [ 217.489230][ T6248] __arm64_sys_mount+0x514/0x5f0 [ 217.490044][ T6248] invoke_syscall+0x98/0x2b0 [ 217.490896][ T6248] el0_svc_common+0x138/0x258 [ 217.491645][ T6248] do_el0_svc+0x58/0x13c [ 217.492362][ T6248] el0_svc+0x78/0x1d0 [ 217.493004][ T6248] el0t_64_sync_handler+0xcc/0xe4 [ 217.493808][ T6248] el0t_64_sync+0x1a0/0x1a4 [ 217.494702][ T6248] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.496680][ T6248] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.674127][ T6250] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.675372][ T6250] CPU: 0 PID: 6250 Comm: syz.1.638 Not tainted syzkaller #0 [ 217.676599][ T6250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.678344][ T6250] Call trace: [ 217.678887][ T6250] dump_backtrace+0x0/0x458 [ 217.679629][ T6250] show_stack+0x2c/0x3c [ 217.680334][ T6250] __dump_stack+0x30/0x40 [ 217.681036][ T6250] dump_stack_lvl+0xf4/0x15c [ 217.681828][ T6250] dump_stack+0x1c/0x5c [ 217.682530][ T6250] sysfs_create_dir_ns+0x244/0x264 [ 217.683486][ T6250] kobject_add_internal+0x5ac/0xc3c [ 217.684338][ T6250] kobject_init_and_add+0x124/0x190 [ 217.685273][ T6250] gfs2_sys_fs_add+0x200/0x41c [ 217.686078][ T6250] gfs2_fill_super+0xddc/0x1a18 [ 217.686992][ T6250] get_tree_bdev+0x358/0x544 [ 217.687754][ T6250] gfs2_get_tree+0x54/0x1b4 [ 217.688530][ T6250] vfs_get_tree+0x90/0x274 [ 217.689218][ T6250] do_new_mount+0x228/0x810 [ 217.689953][ T6250] path_mount+0x5bc/0x1008 [ 217.690702][ T6250] __arm64_sys_mount+0x514/0x5f0 [ 217.691523][ T6250] invoke_syscall+0x98/0x2b0 [ 217.692291][ T6250] el0_svc_common+0x138/0x258 [ 217.693083][ T6250] do_el0_svc+0x58/0x13c [ 217.693821][ T6250] el0_svc+0x78/0x1d0 [ 217.694548][ T6250] el0t_64_sync_handler+0xcc/0xe4 [ 217.695395][ T6250] el0t_64_sync+0x1a0/0x1a4 [ 217.697615][ T6250] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.699872][ T6250] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.884365][ T6252] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.885678][ T6252] CPU: 1 PID: 6252 Comm: syz.1.639 Not tainted syzkaller #0 [ 217.886837][ T6252] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.888568][ T6252] Call trace: [ 217.889091][ T6252] dump_backtrace+0x0/0x458 [ 217.889872][ T6252] show_stack+0x2c/0x3c [ 217.890519][ T6252] __dump_stack+0x30/0x40 [ 217.891308][ T6252] dump_stack_lvl+0xf4/0x15c [ 217.892101][ T6252] dump_stack+0x1c/0x5c [ 217.892800][ T6252] sysfs_create_dir_ns+0x244/0x264 [ 217.893607][ T6252] kobject_add_internal+0x5ac/0xc3c [ 217.894528][ T6252] kobject_init_and_add+0x124/0x190 [ 217.895453][ T6252] gfs2_sys_fs_add+0x200/0x41c [ 217.896221][ T6252] gfs2_fill_super+0xddc/0x1a18 [ 217.897011][ T6252] get_tree_bdev+0x358/0x544 [ 217.897757][ T6252] gfs2_get_tree+0x54/0x1b4 [ 217.898521][ T6252] vfs_get_tree+0x90/0x274 [ 217.899275][ T6252] do_new_mount+0x228/0x810 [ 217.900036][ T6252] path_mount+0x5bc/0x1008 [ 217.900760][ T6252] __arm64_sys_mount+0x514/0x5f0 [ 217.901606][ T6252] invoke_syscall+0x98/0x2b0 [ 217.902344][ T6252] el0_svc_common+0x138/0x258 [ 217.903135][ T6252] do_el0_svc+0x58/0x13c [ 217.903805][ T6252] el0_svc+0x78/0x1d0 [ 217.904443][ T6252] el0t_64_sync_handler+0xcc/0xe4 [ 217.905235][ T6252] el0t_64_sync+0x1a0/0x1a4 [ 217.906208][ T6252] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.908378][ T6252] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.007975][ T4165] Bluetooth: hci2: command 0x040f tx timeout [ 218.079153][ T6254] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.080362][ T6254] CPU: 0 PID: 6254 Comm: syz.1.640 Not tainted syzkaller #0 [ 218.081532][ T6254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.083274][ T6254] Call trace: [ 218.083852][ T6254] dump_backtrace+0x0/0x458 [ 218.084574][ T6254] show_stack+0x2c/0x3c [ 218.085293][ T6254] __dump_stack+0x30/0x40 [ 218.085984][ T6254] dump_stack_lvl+0xf4/0x15c [ 218.086726][ T6254] dump_stack+0x1c/0x5c [ 218.087429][ T6254] sysfs_create_dir_ns+0x244/0x264 [ 218.088333][ T6254] kobject_add_internal+0x5ac/0xc3c [ 218.089184][ T6254] kobject_init_and_add+0x124/0x190 [ 218.090040][ T6254] gfs2_sys_fs_add+0x200/0x41c [ 218.090801][ T6254] gfs2_fill_super+0xddc/0x1a18 [ 218.091687][ T6254] get_tree_bdev+0x358/0x544 [ 218.092487][ T6254] gfs2_get_tree+0x54/0x1b4 [ 218.093226][ T6254] vfs_get_tree+0x90/0x274 [ 218.093985][ T6254] do_new_mount+0x228/0x810 [ 218.094730][ T6254] path_mount+0x5bc/0x1008 [ 218.095487][ T6254] __arm64_sys_mount+0x514/0x5f0 [ 218.096325][ T6254] invoke_syscall+0x98/0x2b0 [ 218.097228][ T6254] el0_svc_common+0x138/0x258 [ 218.098014][ T6254] do_el0_svc+0x58/0x13c [ 218.098736][ T6254] el0_svc+0x78/0x1d0 [ 218.099366][ T6254] el0t_64_sync_handler+0xcc/0xe4 [ 218.100233][ T6254] el0t_64_sync+0x1a0/0x1a4 [ 218.106021][ T6254] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.108737][ T6254] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.273830][ T6256] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.275108][ T6256] CPU: 1 PID: 6256 Comm: syz.1.641 Not tainted syzkaller #0 [ 218.276390][ T6256] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.278168][ T6256] Call trace: [ 218.278707][ T6256] dump_backtrace+0x0/0x458 [ 218.279437][ T6256] show_stack+0x2c/0x3c [ 218.280129][ T6256] __dump_stack+0x30/0x40 [ 218.280872][ T6256] dump_stack_lvl+0xf4/0x15c [ 218.281628][ T6256] dump_stack+0x1c/0x5c [ 218.282283][ T6256] sysfs_create_dir_ns+0x244/0x264 [ 218.283078][ T6256] kobject_add_internal+0x5ac/0xc3c [ 218.283900][ T6256] kobject_init_and_add+0x124/0x190 [ 218.284737][ T6256] gfs2_sys_fs_add+0x200/0x41c [ 218.285473][ T6256] gfs2_fill_super+0xddc/0x1a18 [ 218.286221][ T6256] get_tree_bdev+0x358/0x544 [ 218.286893][ T6256] gfs2_get_tree+0x54/0x1b4 [ 218.287574][ T6256] vfs_get_tree+0x90/0x274 [ 218.288330][ T6256] do_new_mount+0x228/0x810 [ 218.289044][ T6256] path_mount+0x5bc/0x1008 [ 218.289724][ T6256] __arm64_sys_mount+0x514/0x5f0 [ 218.290484][ T6256] invoke_syscall+0x98/0x2b0 [ 218.291199][ T6256] el0_svc_common+0x138/0x258 [ 218.291937][ T6256] do_el0_svc+0x58/0x13c [ 218.292575][ T6256] el0_svc+0x78/0x1d0 [ 218.293223][ T6256] el0t_64_sync_handler+0xcc/0xe4 [ 218.294056][ T6256] el0t_64_sync+0x1a0/0x1a4 [ 218.296303][ T6256] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.298582][ T6256] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:38 executed programs: 628 [ 218.426115][ T6258] set_capacity_and_notify: 14 callbacks suppressed [ 218.426125][ T6258] loop1: detected capacity change from 0 to 32768 [ 218.523310][ T6258] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.524651][ T6258] CPU: 0 PID: 6258 Comm: syz.1.642 Not tainted syzkaller #0 [ 218.525897][ T6258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.527635][ T6258] Call trace: [ 218.528211][ T6258] dump_backtrace+0x0/0x458 [ 218.528981][ T6258] show_stack+0x2c/0x3c [ 218.529718][ T6258] __dump_stack+0x30/0x40 [ 218.530443][ T6258] dump_stack_lvl+0xf4/0x15c [ 218.531213][ T6258] dump_stack+0x1c/0x5c [ 218.531938][ T6258] sysfs_create_dir_ns+0x244/0x264 [ 218.532809][ T6258] kobject_add_internal+0x5ac/0xc3c [ 218.533648][ T6258] kobject_init_and_add+0x124/0x190 [ 218.534489][ T6258] gfs2_sys_fs_add+0x200/0x41c [ 218.535243][ T6258] gfs2_fill_super+0xddc/0x1a18 [ 218.535982][ T6258] get_tree_bdev+0x358/0x544 [ 218.536692][ T6258] gfs2_get_tree+0x54/0x1b4 [ 218.537384][ T6258] vfs_get_tree+0x90/0x274 [ 218.538119][ T6258] do_new_mount+0x228/0x810 [ 218.538931][ T6258] path_mount+0x5bc/0x1008 [ 218.539653][ T6258] __arm64_sys_mount+0x514/0x5f0 [ 218.540466][ T6258] invoke_syscall+0x98/0x2b0 [ 218.541258][ T6258] el0_svc_common+0x138/0x258 [ 218.542058][ T6258] do_el0_svc+0x58/0x13c [ 218.542734][ T6258] el0_svc+0x78/0x1d0 [ 218.543413][ T6258] el0t_64_sync_handler+0xcc/0xe4 [ 218.544262][ T6258] el0t_64_sync+0x1a0/0x1a4 [ 218.546649][ T6258] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.556749][ T6258] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.743875][ T6260] loop1: detected capacity change from 0 to 32768 [ 218.799237][ T6260] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.801236][ T6260] CPU: 1 PID: 6260 Comm: syz.1.643 Not tainted syzkaller #0 [ 218.802380][ T6260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.803952][ T6260] Call trace: [ 218.804508][ T6260] dump_backtrace+0x0/0x458 [ 218.805214][ T6260] show_stack+0x2c/0x3c [ 218.805891][ T6260] __dump_stack+0x30/0x40 [ 218.806565][ T6260] dump_stack_lvl+0xf4/0x15c [ 218.807265][ T6260] dump_stack+0x1c/0x5c [ 218.807877][ T6260] sysfs_create_dir_ns+0x244/0x264 [ 218.808648][ T6260] kobject_add_internal+0x5ac/0xc3c [ 218.809460][ T6260] kobject_init_and_add+0x124/0x190 [ 218.810367][ T6260] gfs2_sys_fs_add+0x200/0x41c [ 218.811196][ T6260] gfs2_fill_super+0xddc/0x1a18 [ 218.812015][ T6260] get_tree_bdev+0x358/0x544 [ 218.812762][ T6260] gfs2_get_tree+0x54/0x1b4 [ 218.813597][ T6260] vfs_get_tree+0x90/0x274 [ 218.814344][ T6260] do_new_mount+0x228/0x810 [ 218.815060][ T6260] path_mount+0x5bc/0x1008 [ 218.815868][ T6260] __arm64_sys_mount+0x514/0x5f0 [ 218.816632][ T6260] invoke_syscall+0x98/0x2b0 [ 218.817363][ T6260] el0_svc_common+0x138/0x258 [ 218.818094][ T6260] do_el0_svc+0x58/0x13c [ 218.818809][ T6260] el0_svc+0x78/0x1d0 [ 218.819496][ T6260] el0t_64_sync_handler+0xcc/0xe4 [ 218.820312][ T6260] el0t_64_sync+0x1a0/0x1a4 [ 218.822729][ T6260] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.824639][ T6260] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.955352][ T6262] loop1: detected capacity change from 0 to 32768 [ 218.963725][ T6262] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.964959][ T6262] CPU: 0 PID: 6262 Comm: syz.1.644 Not tainted syzkaller #0 [ 218.966081][ T6262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.967638][ T6262] Call trace: [ 218.968183][ T6262] dump_backtrace+0x0/0x458 [ 218.968918][ T6262] show_stack+0x2c/0x3c [ 218.969635][ T6262] __dump_stack+0x30/0x40 [ 218.970364][ T6262] dump_stack_lvl+0xf4/0x15c [ 218.971153][ T6262] dump_stack+0x1c/0x5c [ 218.971752][ T6262] sysfs_create_dir_ns+0x244/0x264 [ 218.972531][ T6262] kobject_add_internal+0x5ac/0xc3c [ 218.973310][ T6262] kobject_init_and_add+0x124/0x190 [ 218.974066][ T6262] gfs2_sys_fs_add+0x200/0x41c [ 218.974778][ T6262] gfs2_fill_super+0xddc/0x1a18 [ 218.975670][ T6262] get_tree_bdev+0x358/0x544 [ 218.976466][ T6262] gfs2_get_tree+0x54/0x1b4 [ 218.977222][ T6262] vfs_get_tree+0x90/0x274 [ 218.977932][ T6262] do_new_mount+0x228/0x810 [ 218.978651][ T6262] path_mount+0x5bc/0x1008 [ 218.979384][ T6262] __arm64_sys_mount+0x514/0x5f0 [ 218.980247][ T6262] invoke_syscall+0x98/0x2b0 [ 218.981046][ T6262] el0_svc_common+0x138/0x258 [ 218.981841][ T6262] do_el0_svc+0x58/0x13c [ 218.982569][ T6262] el0_svc+0x78/0x1d0 [ 218.983240][ T6262] el0t_64_sync_handler+0xcc/0xe4 [ 218.984094][ T6262] el0t_64_sync+0x1a0/0x1a4 [ 218.985368][ T6262] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.987429][ T6262] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.116278][ T6264] loop1: detected capacity change from 0 to 32768 [ 219.160363][ T6264] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.161856][ T6264] CPU: 0 PID: 6264 Comm: syz.1.645 Not tainted syzkaller #0 [ 219.163050][ T6264] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.164766][ T6264] Call trace: [ 219.165250][ T6264] dump_backtrace+0x0/0x458 [ 219.165996][ T6264] show_stack+0x2c/0x3c [ 219.166702][ T6264] __dump_stack+0x30/0x40 [ 219.167367][ T6264] dump_stack_lvl+0xf4/0x15c [ 219.168112][ T6264] dump_stack+0x1c/0x5c [ 219.168812][ T6264] sysfs_create_dir_ns+0x244/0x264 [ 219.169632][ T6264] kobject_add_internal+0x5ac/0xc3c [ 219.170589][ T6264] kobject_init_and_add+0x124/0x190 [ 219.171500][ T6264] gfs2_sys_fs_add+0x200/0x41c [ 219.172262][ T6264] gfs2_fill_super+0xddc/0x1a18 [ 219.173037][ T6264] get_tree_bdev+0x358/0x544 [ 219.173801][ T6264] gfs2_get_tree+0x54/0x1b4 [ 219.174560][ T6264] vfs_get_tree+0x90/0x274 [ 219.175331][ T6264] do_new_mount+0x228/0x810 [ 219.176117][ T6264] path_mount+0x5bc/0x1008 [ 219.176826][ T6264] __arm64_sys_mount+0x514/0x5f0 [ 219.177582][ T6264] invoke_syscall+0x98/0x2b0 [ 219.178346][ T6264] el0_svc_common+0x138/0x258 [ 219.179083][ T6264] do_el0_svc+0x58/0x13c [ 219.179739][ T6264] el0_svc+0x78/0x1d0 [ 219.180456][ T6264] el0t_64_sync_handler+0xcc/0xe4 [ 219.181366][ T6264] el0t_64_sync+0x1a0/0x1a4 [ 219.183918][ T6264] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.185983][ T6264] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.316746][ T6266] loop1: detected capacity change from 0 to 32768 [ 219.323613][ T6266] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.324804][ T6266] CPU: 1 PID: 6266 Comm: syz.1.646 Not tainted syzkaller #0 [ 219.325905][ T6266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.327526][ T6266] Call trace: [ 219.328075][ T6266] dump_backtrace+0x0/0x458 [ 219.328807][ T6266] show_stack+0x2c/0x3c [ 219.329477][ T6266] __dump_stack+0x30/0x40 [ 219.330160][ T6266] dump_stack_lvl+0xf4/0x15c [ 219.330904][ T6266] dump_stack+0x1c/0x5c [ 219.331615][ T6266] sysfs_create_dir_ns+0x244/0x264 [ 219.332509][ T6266] kobject_add_internal+0x5ac/0xc3c [ 219.333397][ T6266] kobject_init_and_add+0x124/0x190 [ 219.334204][ T6266] gfs2_sys_fs_add+0x200/0x41c [ 219.334921][ T6266] gfs2_fill_super+0xddc/0x1a18 [ 219.335659][ T6266] get_tree_bdev+0x358/0x544 [ 219.336351][ T6266] gfs2_get_tree+0x54/0x1b4 [ 219.337052][ T6266] vfs_get_tree+0x90/0x274 [ 219.337769][ T6266] do_new_mount+0x228/0x810 [ 219.338575][ T6266] path_mount+0x5bc/0x1008 [ 219.339315][ T6266] __arm64_sys_mount+0x514/0x5f0 [ 219.340127][ T6266] invoke_syscall+0x98/0x2b0 [ 219.340863][ T6266] el0_svc_common+0x138/0x258 [ 219.341605][ T6266] do_el0_svc+0x58/0x13c [ 219.342278][ T6266] el0_svc+0x78/0x1d0 [ 219.342903][ T6266] el0t_64_sync_handler+0xcc/0xe4 [ 219.343762][ T6266] el0t_64_sync+0x1a0/0x1a4 [ 219.344594][ T6266] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.346632][ T6266] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.476562][ T6268] loop1: detected capacity change from 0 to 32768 [ 219.522982][ T6268] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.524310][ T6268] CPU: 1 PID: 6268 Comm: syz.1.647 Not tainted syzkaller #0 [ 219.525528][ T6268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.527248][ T6268] Call trace: [ 219.527803][ T6268] dump_backtrace+0x0/0x458 [ 219.528607][ T6268] show_stack+0x2c/0x3c [ 219.529334][ T6268] __dump_stack+0x30/0x40 [ 219.530064][ T6268] dump_stack_lvl+0xf4/0x15c [ 219.530838][ T6268] dump_stack+0x1c/0x5c [ 219.531568][ T6268] sysfs_create_dir_ns+0x244/0x264 [ 219.532402][ T6268] kobject_add_internal+0x5ac/0xc3c [ 219.533260][ T6268] kobject_init_and_add+0x124/0x190 [ 219.534112][ T6268] gfs2_sys_fs_add+0x200/0x41c [ 219.534894][ T6268] gfs2_fill_super+0xddc/0x1a18 [ 219.535665][ T6268] get_tree_bdev+0x358/0x544 [ 219.536502][ T6268] gfs2_get_tree+0x54/0x1b4 [ 219.537248][ T6268] vfs_get_tree+0x90/0x274 [ 219.537935][ T6268] do_new_mount+0x228/0x810 [ 219.538628][ T6268] path_mount+0x5bc/0x1008 [ 219.539315][ T6268] __arm64_sys_mount+0x514/0x5f0 [ 219.540102][ T6268] invoke_syscall+0x98/0x2b0 [ 219.540865][ T6268] el0_svc_common+0x138/0x258 [ 219.541645][ T6268] do_el0_svc+0x58/0x13c [ 219.542339][ T6268] el0_svc+0x78/0x1d0 [ 219.542997][ T6268] el0t_64_sync_handler+0xcc/0xe4 [ 219.543803][ T6268] el0t_64_sync+0x1a0/0x1a4 [ 219.546004][ T6268] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.548093][ T6268] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.685256][ T6270] loop1: detected capacity change from 0 to 32768 [ 219.693878][ T6270] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.695064][ T6270] CPU: 1 PID: 6270 Comm: syz.1.648 Not tainted syzkaller #0 [ 219.696182][ T6270] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.697850][ T6270] Call trace: [ 219.698339][ T6270] dump_backtrace+0x0/0x458 [ 219.699039][ T6270] show_stack+0x2c/0x3c [ 219.699668][ T6270] __dump_stack+0x30/0x40 [ 219.700313][ T6270] dump_stack_lvl+0xf4/0x15c [ 219.700979][ T6270] dump_stack+0x1c/0x5c [ 219.701571][ T6270] sysfs_create_dir_ns+0x244/0x264 [ 219.702341][ T6270] kobject_add_internal+0x5ac/0xc3c [ 219.703121][ T6270] kobject_init_and_add+0x124/0x190 [ 219.703909][ T6270] gfs2_sys_fs_add+0x200/0x41c [ 219.704692][ T6270] gfs2_fill_super+0xddc/0x1a18 [ 219.705435][ T6270] get_tree_bdev+0x358/0x544 [ 219.706185][ T6270] gfs2_get_tree+0x54/0x1b4 [ 219.706950][ T6270] vfs_get_tree+0x90/0x274 [ 219.707626][ T6270] do_new_mount+0x228/0x810 [ 219.708277][ T6270] path_mount+0x5bc/0x1008 [ 219.708978][ T6270] __arm64_sys_mount+0x514/0x5f0 [ 219.709782][ T6270] invoke_syscall+0x98/0x2b0 [ 219.710452][ T6270] el0_svc_common+0x138/0x258 [ 219.711197][ T6270] do_el0_svc+0x58/0x13c [ 219.711878][ T6270] el0_svc+0x78/0x1d0 [ 219.712584][ T6270] el0t_64_sync_handler+0xcc/0xe4 [ 219.713410][ T6270] el0t_64_sync+0x1a0/0x1a4 [ 219.714388][ T6270] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.716365][ T6270] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.846065][ T6272] loop1: detected capacity change from 0 to 32768 [ 219.879208][ T6272] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.880441][ T6272] CPU: 1 PID: 6272 Comm: syz.1.649 Not tainted syzkaller #0 [ 219.881574][ T6272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.883091][ T6272] Call trace: [ 219.883589][ T6272] dump_backtrace+0x0/0x458 [ 219.884299][ T6272] show_stack+0x2c/0x3c [ 219.884955][ T6272] __dump_stack+0x30/0x40 [ 219.885636][ T6272] dump_stack_lvl+0xf4/0x15c [ 219.886430][ T6272] dump_stack+0x1c/0x5c [ 219.887148][ T6272] sysfs_create_dir_ns+0x244/0x264 [ 219.888016][ T6272] kobject_add_internal+0x5ac/0xc3c [ 219.888876][ T6272] kobject_init_and_add+0x124/0x190 [ 219.889698][ T6272] gfs2_sys_fs_add+0x200/0x41c [ 219.890475][ T6272] gfs2_fill_super+0xddc/0x1a18 [ 219.891314][ T6272] get_tree_bdev+0x358/0x544 [ 219.892065][ T6272] gfs2_get_tree+0x54/0x1b4 [ 219.892819][ T6272] vfs_get_tree+0x90/0x274 [ 219.893597][ T6272] do_new_mount+0x228/0x810 [ 219.894361][ T6272] path_mount+0x5bc/0x1008 [ 219.895101][ T6272] __arm64_sys_mount+0x514/0x5f0 [ 219.895939][ T6272] invoke_syscall+0x98/0x2b0 [ 219.896723][ T6272] el0_svc_common+0x138/0x258 [ 219.897476][ T6272] do_el0_svc+0x58/0x13c [ 219.898181][ T6272] el0_svc+0x78/0x1d0 [ 219.898839][ T6272] el0t_64_sync_handler+0xcc/0xe4 [ 219.899628][ T6272] el0t_64_sync+0x1a0/0x1a4 [ 219.901114][ T6272] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.903165][ T6272] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.031570][ T6274] loop1: detected capacity change from 0 to 32768 [ 220.069601][ T6274] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.070815][ T6274] CPU: 1 PID: 6274 Comm: syz.1.650 Not tainted syzkaller #0 [ 220.071961][ T6274] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.073630][ T6274] Call trace: [ 220.074157][ T6274] dump_backtrace+0x0/0x458 [ 220.074859][ T6274] show_stack+0x2c/0x3c [ 220.075520][ T6274] __dump_stack+0x30/0x40 [ 220.076243][ T6274] dump_stack_lvl+0xf4/0x15c [ 220.076994][ T6274] dump_stack+0x1c/0x5c [ 220.077652][ T6274] sysfs_create_dir_ns+0x244/0x264 [ 220.078498][ T6274] kobject_add_internal+0x5ac/0xc3c [ 220.079412][ T6274] kobject_init_and_add+0x124/0x190 [ 220.080346][ T6274] gfs2_sys_fs_add+0x200/0x41c [ 220.081175][ T6274] gfs2_fill_super+0xddc/0x1a18 [ 220.082054][ T6274] get_tree_bdev+0x358/0x544 [ 220.082852][ T6274] gfs2_get_tree+0x54/0x1b4 [ 220.083641][ T6274] vfs_get_tree+0x90/0x274 [ 220.084351][ T6274] do_new_mount+0x228/0x810 [ 220.085065][ T6274] path_mount+0x5bc/0x1008 [ 220.085812][ T6274] __arm64_sys_mount+0x514/0x5f0 [ 220.086613][ T6274] invoke_syscall+0x98/0x2b0 [ 220.087370][ T6274] el0_svc_common+0x138/0x258 [ 220.088090][ T6274] do_el0_svc+0x58/0x13c [ 220.088787][ T6274] el0_svc+0x78/0x1d0 [ 220.089461][ T6274] el0t_64_sync_handler+0xcc/0xe4 [ 220.090312][ T6274] el0t_64_sync+0x1a0/0x1a4 [ 220.091827][ T4163] Bluetooth: hci2: command 0x0419 tx timeout [ 220.093049][ T6274] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.095023][ T6274] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.285364][ T6276] loop1: detected capacity change from 0 to 32768 [ 220.329293][ T6276] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.330529][ T6276] CPU: 1 PID: 6276 Comm: syz.1.651 Not tainted syzkaller #0 [ 220.331749][ T6276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.333291][ T6276] Call trace: [ 220.333779][ T6276] dump_backtrace+0x0/0x458 [ 220.334439][ T6276] show_stack+0x2c/0x3c [ 220.335053][ T6276] __dump_stack+0x30/0x40 [ 220.335761][ T6276] dump_stack_lvl+0xf4/0x15c [ 220.336556][ T6276] dump_stack+0x1c/0x5c [ 220.337293][ T6276] sysfs_create_dir_ns+0x244/0x264 [ 220.338165][ T6276] kobject_add_internal+0x5ac/0xc3c [ 220.338998][ T6276] kobject_init_and_add+0x124/0x190 [ 220.339924][ T6276] gfs2_sys_fs_add+0x200/0x41c [ 220.340721][ T6276] gfs2_fill_super+0xddc/0x1a18 [ 220.341558][ T6276] get_tree_bdev+0x358/0x544 [ 220.342306][ T6276] gfs2_get_tree+0x54/0x1b4 [ 220.343048][ T6276] vfs_get_tree+0x90/0x274 [ 220.343850][ T6276] do_new_mount+0x228/0x810 [ 220.344603][ T6276] path_mount+0x5bc/0x1008 [ 220.345308][ T6276] __arm64_sys_mount+0x514/0x5f0 [ 220.346098][ T6276] invoke_syscall+0x98/0x2b0 [ 220.346818][ T6276] el0_svc_common+0x138/0x258 [ 220.347605][ T6276] do_el0_svc+0x58/0x13c [ 220.348360][ T6276] el0_svc+0x78/0x1d0 [ 220.349042][ T6276] el0t_64_sync_handler+0xcc/0xe4 [ 220.349897][ T6276] el0t_64_sync+0x1a0/0x1a4 [ 220.352068][ T6276] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.354363][ T6276] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.549212][ T6278] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.550392][ T6278] CPU: 0 PID: 6278 Comm: syz.1.652 Not tainted syzkaller #0 [ 220.551624][ T6278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.553374][ T6278] Call trace: [ 220.553914][ T6278] dump_backtrace+0x0/0x458 [ 220.554698][ T6278] show_stack+0x2c/0x3c [ 220.555384][ T6278] __dump_stack+0x30/0x40 [ 220.556092][ T6278] dump_stack_lvl+0xf4/0x15c [ 220.556851][ T6278] dump_stack+0x1c/0x5c [ 220.557595][ T6278] sysfs_create_dir_ns+0x244/0x264 [ 220.558500][ T6278] kobject_add_internal+0x5ac/0xc3c [ 220.559397][ T6278] kobject_init_and_add+0x124/0x190 [ 220.560255][ T6278] gfs2_sys_fs_add+0x200/0x41c [ 220.561063][ T6278] gfs2_fill_super+0xddc/0x1a18 [ 220.561838][ T6278] get_tree_bdev+0x358/0x544 [ 220.562559][ T6278] gfs2_get_tree+0x54/0x1b4 [ 220.563323][ T6278] vfs_get_tree+0x90/0x274 [ 220.564100][ T6278] do_new_mount+0x228/0x810 [ 220.564821][ T6278] path_mount+0x5bc/0x1008 [ 220.565553][ T6278] __arm64_sys_mount+0x514/0x5f0 [ 220.566358][ T6278] invoke_syscall+0x98/0x2b0 [ 220.567079][ T6278] el0_svc_common+0x138/0x258 [ 220.567825][ T6278] do_el0_svc+0x58/0x13c [ 220.568533][ T6278] el0_svc+0x78/0x1d0 [ 220.569183][ T6278] el0t_64_sync_handler+0xcc/0xe4 [ 220.570038][ T6278] el0t_64_sync+0x1a0/0x1a4 [ 220.574179][ T6278] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.576371][ T6278] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.713638][ T6280] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.714852][ T6280] CPU: 0 PID: 6280 Comm: syz.1.653 Not tainted syzkaller #0 [ 220.716138][ T6280] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.717877][ T6280] Call trace: [ 220.718434][ T6280] dump_backtrace+0x0/0x458 [ 220.719206][ T6280] show_stack+0x2c/0x3c [ 220.719942][ T6280] __dump_stack+0x30/0x40 [ 220.720674][ T6280] dump_stack_lvl+0xf4/0x15c [ 220.721408][ T6280] dump_stack+0x1c/0x5c [ 220.722098][ T6280] sysfs_create_dir_ns+0x244/0x264 [ 220.722960][ T6280] kobject_add_internal+0x5ac/0xc3c [ 220.723839][ T6280] kobject_init_and_add+0x124/0x190 [ 220.724752][ T6280] gfs2_sys_fs_add+0x200/0x41c [ 220.725559][ T6280] gfs2_fill_super+0xddc/0x1a18 [ 220.726407][ T6280] get_tree_bdev+0x358/0x544 [ 220.727169][ T6280] gfs2_get_tree+0x54/0x1b4 [ 220.727901][ T6280] vfs_get_tree+0x90/0x274 [ 220.728640][ T6280] do_new_mount+0x228/0x810 [ 220.729325][ T6280] path_mount+0x5bc/0x1008 [ 220.730043][ T6280] __arm64_sys_mount+0x514/0x5f0 [ 220.730825][ T6280] invoke_syscall+0x98/0x2b0 [ 220.731615][ T6280] el0_svc_common+0x138/0x258 [ 220.732388][ T6280] do_el0_svc+0x58/0x13c [ 220.733099][ T6280] el0_svc+0x78/0x1d0 [ 220.733764][ T6280] el0t_64_sync_handler+0xcc/0xe4 [ 220.734564][ T6280] el0t_64_sync+0x1a0/0x1a4 [ 220.735766][ T6280] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.737664][ T6280] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.932516][ T6282] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.933694][ T6282] CPU: 0 PID: 6282 Comm: syz.1.654 Not tainted syzkaller #0 [ 220.934796][ T6282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.936301][ T6282] Call trace: [ 220.936812][ T6282] dump_backtrace+0x0/0x458 [ 220.937539][ T6282] show_stack+0x2c/0x3c [ 220.938238][ T6282] __dump_stack+0x30/0x40 [ 220.938922][ T6282] dump_stack_lvl+0xf4/0x15c [ 220.939634][ T6282] dump_stack+0x1c/0x5c [ 220.940280][ T6282] sysfs_create_dir_ns+0x244/0x264 [ 220.941073][ T6282] kobject_add_internal+0x5ac/0xc3c [ 220.941970][ T6282] kobject_init_and_add+0x124/0x190 [ 220.942876][ T6282] gfs2_sys_fs_add+0x200/0x41c [ 220.943660][ T6282] gfs2_fill_super+0xddc/0x1a18 [ 220.944472][ T6282] get_tree_bdev+0x358/0x544 [ 220.945204][ T6282] gfs2_get_tree+0x54/0x1b4 [ 220.945958][ T6282] vfs_get_tree+0x90/0x274 [ 220.946697][ T6282] do_new_mount+0x228/0x810 [ 220.947428][ T6282] path_mount+0x5bc/0x1008 [ 220.948114][ T6282] __arm64_sys_mount+0x514/0x5f0 [ 220.948961][ T6282] invoke_syscall+0x98/0x2b0 [ 220.949776][ T6282] el0_svc_common+0x138/0x258 [ 220.950539][ T6282] do_el0_svc+0x58/0x13c [ 220.951253][ T6282] el0_svc+0x78/0x1d0 [ 220.951976][ T6282] el0t_64_sync_handler+0xcc/0xe4 [ 220.952841][ T6282] el0t_64_sync+0x1a0/0x1a4 [ 220.954072][ T6282] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.956121][ T6282] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.101861][ T6284] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.103020][ T6284] CPU: 0 PID: 6284 Comm: syz.1.655 Not tainted syzkaller #0 [ 221.104276][ T6284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.106038][ T6284] Call trace: [ 221.106698][ T6284] dump_backtrace+0x0/0x458 [ 221.107444][ T6284] show_stack+0x2c/0x3c [ 221.108139][ T6284] __dump_stack+0x30/0x40 [ 221.108822][ T6284] dump_stack_lvl+0xf4/0x15c [ 221.109585][ T6284] dump_stack+0x1c/0x5c [ 221.110264][ T6284] sysfs_create_dir_ns+0x244/0x264 [ 221.111081][ T6284] kobject_add_internal+0x5ac/0xc3c [ 221.111948][ T6284] kobject_init_and_add+0x124/0x190 [ 221.112846][ T6284] gfs2_sys_fs_add+0x200/0x41c [ 221.113699][ T6284] gfs2_fill_super+0xddc/0x1a18 [ 221.114520][ T6284] get_tree_bdev+0x358/0x544 [ 221.115339][ T6284] gfs2_get_tree+0x54/0x1b4 [ 221.116043][ T6284] vfs_get_tree+0x90/0x274 [ 221.116764][ T6284] do_new_mount+0x228/0x810 [ 221.117502][ T6284] path_mount+0x5bc/0x1008 [ 221.118184][ T6284] __arm64_sys_mount+0x514/0x5f0 [ 221.118930][ T6284] invoke_syscall+0x98/0x2b0 [ 221.119758][ T6284] el0_svc_common+0x138/0x258 [ 221.120563][ T6284] do_el0_svc+0x58/0x13c [ 221.121252][ T6284] el0_svc+0x78/0x1d0 [ 221.121929][ T6284] el0t_64_sync_handler+0xcc/0xe4 [ 221.122782][ T6284] el0t_64_sync+0x1a0/0x1a4 [ 221.123797][ T6284] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.125857][ T6284] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.315145][ T6286] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.316499][ T6286] CPU: 0 PID: 6286 Comm: syz.1.656 Not tainted syzkaller #0 [ 221.317731][ T6286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.319463][ T6286] Call trace: [ 221.320016][ T6286] dump_backtrace+0x0/0x458 [ 221.320793][ T6286] show_stack+0x2c/0x3c [ 221.321482][ T6286] __dump_stack+0x30/0x40 [ 221.322171][ T6286] dump_stack_lvl+0xf4/0x15c [ 221.322891][ T6286] dump_stack+0x1c/0x5c [ 221.323532][ T6286] sysfs_create_dir_ns+0x244/0x264 [ 221.324361][ T6286] kobject_add_internal+0x5ac/0xc3c [ 221.325234][ T6286] kobject_init_and_add+0x124/0x190 [ 221.326104][ T6286] gfs2_sys_fs_add+0x200/0x41c [ 221.326878][ T6286] gfs2_fill_super+0xddc/0x1a18 [ 221.327680][ T6286] get_tree_bdev+0x358/0x544 [ 221.328441][ T6286] gfs2_get_tree+0x54/0x1b4 [ 221.329164][ T6286] vfs_get_tree+0x90/0x274 [ 221.329917][ T6286] do_new_mount+0x228/0x810 [ 221.330661][ T6286] path_mount+0x5bc/0x1008 [ 221.331382][ T6286] __arm64_sys_mount+0x514/0x5f0 [ 221.332215][ T6286] invoke_syscall+0x98/0x2b0 [ 221.333029][ T6286] el0_svc_common+0x138/0x258 [ 221.333789][ T6286] do_el0_svc+0x58/0x13c [ 221.334524][ T6286] el0_svc+0x78/0x1d0 [ 221.335186][ T6286] el0t_64_sync_handler+0xcc/0xe4 [ 221.336002][ T6286] el0t_64_sync+0x1a0/0x1a4 [ 221.336914][ T6286] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.339072][ T6286] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.539177][ T6288] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.540397][ T6288] CPU: 0 PID: 6288 Comm: syz.1.657 Not tainted syzkaller #0 [ 221.541504][ T6288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.543240][ T6288] Call trace: [ 221.543722][ T6288] dump_backtrace+0x0/0x458 [ 221.544416][ T6288] show_stack+0x2c/0x3c [ 221.545097][ T6288] __dump_stack+0x30/0x40 [ 221.545788][ T6288] dump_stack_lvl+0xf4/0x15c [ 221.546528][ T6288] dump_stack+0x1c/0x5c [ 221.547172][ T6288] sysfs_create_dir_ns+0x244/0x264 [ 221.548026][ T6288] kobject_add_internal+0x5ac/0xc3c [ 221.548914][ T6288] kobject_init_and_add+0x124/0x190 [ 221.549713][ T6288] gfs2_sys_fs_add+0x200/0x41c [ 221.550414][ T6288] gfs2_fill_super+0xddc/0x1a18 [ 221.551251][ T6288] get_tree_bdev+0x358/0x544 [ 221.552010][ T6288] gfs2_get_tree+0x54/0x1b4 [ 221.552759][ T6288] vfs_get_tree+0x90/0x274 [ 221.553497][ T6288] do_new_mount+0x228/0x810 [ 221.554262][ T6288] path_mount+0x5bc/0x1008 [ 221.554967][ T6288] __arm64_sys_mount+0x514/0x5f0 [ 221.555753][ T6288] invoke_syscall+0x98/0x2b0 [ 221.556506][ T6288] el0_svc_common+0x138/0x258 [ 221.557275][ T6288] do_el0_svc+0x58/0x13c [ 221.557956][ T6288] el0_svc+0x78/0x1d0 [ 221.558605][ T6288] el0t_64_sync_handler+0xcc/0xe4 [ 221.559424][ T6288] el0t_64_sync+0x1a0/0x1a4 [ 221.560360][ T6288] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.562581][ T6288] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.729109][ T6290] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.730367][ T6290] CPU: 1 PID: 6290 Comm: syz.1.658 Not tainted syzkaller #0 [ 221.731500][ T6290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.733091][ T6290] Call trace: [ 221.733628][ T6290] dump_backtrace+0x0/0x458 [ 221.734369][ T6290] show_stack+0x2c/0x3c [ 221.735113][ T6290] __dump_stack+0x30/0x40 [ 221.735860][ T6290] dump_stack_lvl+0xf4/0x15c [ 221.736619][ T6290] dump_stack+0x1c/0x5c [ 221.737293][ T6290] sysfs_create_dir_ns+0x244/0x264 [ 221.738132][ T6290] kobject_add_internal+0x5ac/0xc3c [ 221.739000][ T6290] kobject_init_and_add+0x124/0x190 [ 221.739833][ T6290] gfs2_sys_fs_add+0x200/0x41c [ 221.740568][ T6290] gfs2_fill_super+0xddc/0x1a18 [ 221.741346][ T6290] get_tree_bdev+0x358/0x544 [ 221.742072][ T6290] gfs2_get_tree+0x54/0x1b4 [ 221.742788][ T6290] vfs_get_tree+0x90/0x274 [ 221.743578][ T6290] do_new_mount+0x228/0x810 [ 221.744313][ T6290] path_mount+0x5bc/0x1008 [ 221.745063][ T6290] __arm64_sys_mount+0x514/0x5f0 [ 221.745815][ T6290] invoke_syscall+0x98/0x2b0 [ 221.746534][ T6290] el0_svc_common+0x138/0x258 [ 221.747276][ T6290] do_el0_svc+0x58/0x13c [ 221.747966][ T6290] el0_svc+0x78/0x1d0 [ 221.748555][ T6290] el0t_64_sync_handler+0xcc/0xe4 [ 221.749364][ T6290] el0t_64_sync+0x1a0/0x1a4 [ 221.751618][ T6290] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.753614][ T6290] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.892209][ T6292] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.893473][ T6292] CPU: 0 PID: 6292 Comm: syz.1.659 Not tainted syzkaller #0 [ 221.894583][ T6292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.896305][ T6292] Call trace: [ 221.896854][ T6292] dump_backtrace+0x0/0x458 [ 221.897621][ T6292] show_stack+0x2c/0x3c [ 221.898314][ T6292] __dump_stack+0x30/0x40 [ 221.899077][ T6292] dump_stack_lvl+0xf4/0x15c [ 221.899830][ T6292] dump_stack+0x1c/0x5c [ 221.900542][ T6292] sysfs_create_dir_ns+0x244/0x264 [ 221.901356][ T6292] kobject_add_internal+0x5ac/0xc3c [ 221.902196][ T6292] kobject_init_and_add+0x124/0x190 [ 221.903051][ T6292] gfs2_sys_fs_add+0x200/0x41c [ 221.903833][ T6292] gfs2_fill_super+0xddc/0x1a18 [ 221.904647][ T6292] get_tree_bdev+0x358/0x544 [ 221.905359][ T6292] gfs2_get_tree+0x54/0x1b4 [ 221.906085][ T6292] vfs_get_tree+0x90/0x274 [ 221.906793][ T6292] do_new_mount+0x228/0x810 [ 221.907474][ T6292] path_mount+0x5bc/0x1008 [ 221.908264][ T6292] __arm64_sys_mount+0x514/0x5f0 [ 221.909099][ T6292] invoke_syscall+0x98/0x2b0 [ 221.909852][ T6292] el0_svc_common+0x138/0x258 [ 221.910639][ T6292] do_el0_svc+0x58/0x13c [ 221.911361][ T6292] el0_svc+0x78/0x1d0 [ 221.912053][ T6292] el0t_64_sync_handler+0xcc/0xe4 [ 221.912976][ T6292] el0t_64_sync+0x1a0/0x1a4 [ 221.913900][ T6292] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.916071][ T6292] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.094239][ T6294] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.095601][ T6294] CPU: 0 PID: 6294 Comm: syz.1.660 Not tainted syzkaller #0 [ 222.096787][ T6294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.098444][ T6294] Call trace: [ 222.098959][ T6294] dump_backtrace+0x0/0x458 [ 222.099677][ T6294] show_stack+0x2c/0x3c [ 222.100324][ T6294] __dump_stack+0x30/0x40 [ 222.101009][ T6294] dump_stack_lvl+0xf4/0x15c [ 222.101902][ T6294] dump_stack+0x1c/0x5c [ 222.102590][ T6294] sysfs_create_dir_ns+0x244/0x264 [ 222.103482][ T6294] kobject_add_internal+0x5ac/0xc3c [ 222.104314][ T6294] kobject_init_and_add+0x124/0x190 [ 222.105180][ T6294] gfs2_sys_fs_add+0x200/0x41c [ 222.105980][ T6294] gfs2_fill_super+0xddc/0x1a18 [ 222.106768][ T6294] get_tree_bdev+0x358/0x544 [ 222.107580][ T6294] gfs2_get_tree+0x54/0x1b4 [ 222.108363][ T6294] vfs_get_tree+0x90/0x274 [ 222.109045][ T6294] do_new_mount+0x228/0x810 [ 222.109756][ T6294] path_mount+0x5bc/0x1008 [ 222.110485][ T6294] __arm64_sys_mount+0x514/0x5f0 [ 222.111267][ T6294] invoke_syscall+0x98/0x2b0 [ 222.112056][ T6294] el0_svc_common+0x138/0x258 [ 222.112861][ T6294] do_el0_svc+0x58/0x13c [ 222.113612][ T6294] el0_svc+0x78/0x1d0 [ 222.114307][ T6294] el0t_64_sync_handler+0xcc/0xe4 [ 222.115188][ T6294] el0t_64_sync+0x1a0/0x1a4 [ 222.116098][ T6294] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.118303][ T6294] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.293456][ T6296] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.294722][ T6296] CPU: 0 PID: 6296 Comm: syz.1.661 Not tainted syzkaller #0 [ 222.295914][ T6296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.297511][ T6296] Call trace: [ 222.298083][ T6296] dump_backtrace+0x0/0x458 [ 222.298911][ T6296] show_stack+0x2c/0x3c [ 222.299603][ T6296] __dump_stack+0x30/0x40 [ 222.300314][ T6296] dump_stack_lvl+0xf4/0x15c [ 222.301086][ T6296] dump_stack+0x1c/0x5c [ 222.301765][ T6296] sysfs_create_dir_ns+0x244/0x264 [ 222.302620][ T6296] kobject_add_internal+0x5ac/0xc3c [ 222.303462][ T6296] kobject_init_and_add+0x124/0x190 [ 222.304292][ T6296] gfs2_sys_fs_add+0x200/0x41c [ 222.305037][ T6296] gfs2_fill_super+0xddc/0x1a18 [ 222.305827][ T6296] get_tree_bdev+0x358/0x544 [ 222.306592][ T6296] gfs2_get_tree+0x54/0x1b4 [ 222.307368][ T6296] vfs_get_tree+0x90/0x274 [ 222.308024][ T6296] do_new_mount+0x228/0x810 [ 222.308788][ T6296] path_mount+0x5bc/0x1008 [ 222.309535][ T6296] __arm64_sys_mount+0x514/0x5f0 [ 222.310392][ T6296] invoke_syscall+0x98/0x2b0 [ 222.311189][ T6296] el0_svc_common+0x138/0x258 [ 222.311950][ T6296] do_el0_svc+0x58/0x13c [ 222.312603][ T6296] el0_svc+0x78/0x1d0 [ 222.313206][ T6296] el0t_64_sync_handler+0xcc/0xe4 [ 222.314010][ T6296] el0t_64_sync+0x1a0/0x1a4 [ 222.316183][ T6296] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.318392][ T6296] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.532947][ T6298] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.534408][ T6298] CPU: 0 PID: 6298 Comm: syz.1.662 Not tainted syzkaller #0 [ 222.535538][ T6298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.537070][ T6298] Call trace: [ 222.537559][ T6298] dump_backtrace+0x0/0x458 [ 222.538329][ T6298] show_stack+0x2c/0x3c [ 222.538999][ T6298] __dump_stack+0x30/0x40 [ 222.539718][ T6298] dump_stack_lvl+0xf4/0x15c [ 222.540525][ T6298] dump_stack+0x1c/0x5c [ 222.541220][ T6298] sysfs_create_dir_ns+0x244/0x264 [ 222.542095][ T6298] kobject_add_internal+0x5ac/0xc3c [ 222.542942][ T6298] kobject_init_and_add+0x124/0x190 [ 222.543837][ T6298] gfs2_sys_fs_add+0x200/0x41c [ 222.544585][ T6298] gfs2_fill_super+0xddc/0x1a18 [ 222.545377][ T6298] get_tree_bdev+0x358/0x544 [ 222.546104][ T6298] gfs2_get_tree+0x54/0x1b4 [ 222.546847][ T6298] vfs_get_tree+0x90/0x274 [ 222.547522][ T6298] do_new_mount+0x228/0x810 [ 222.548326][ T6298] path_mount+0x5bc/0x1008 [ 222.549037][ T6298] __arm64_sys_mount+0x514/0x5f0 [ 222.549768][ T6298] invoke_syscall+0x98/0x2b0 [ 222.550559][ T6298] el0_svc_common+0x138/0x258 [ 222.551353][ T6298] do_el0_svc+0x58/0x13c [ 222.552130][ T6298] el0_svc+0x78/0x1d0 [ 222.552778][ T6298] el0t_64_sync_handler+0xcc/0xe4 [ 222.553604][ T6298] el0t_64_sync+0x1a0/0x1a4 [ 222.555745][ T6298] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.557702][ T6298] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.694135][ T6300] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.695426][ T6300] CPU: 0 PID: 6300 Comm: syz.1.663 Not tainted syzkaller #0 [ 222.696628][ T6300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.698290][ T6300] Call trace: [ 222.698844][ T6300] dump_backtrace+0x0/0x458 [ 222.699632][ T6300] show_stack+0x2c/0x3c [ 222.700327][ T6300] __dump_stack+0x30/0x40 [ 222.701002][ T6300] dump_stack_lvl+0xf4/0x15c [ 222.701786][ T6300] dump_stack+0x1c/0x5c [ 222.702480][ T6300] sysfs_create_dir_ns+0x244/0x264 [ 222.703309][ T6300] kobject_add_internal+0x5ac/0xc3c [ 222.704128][ T6300] kobject_init_and_add+0x124/0x190 [ 222.705016][ T6300] gfs2_sys_fs_add+0x200/0x41c [ 222.705800][ T6300] gfs2_fill_super+0xddc/0x1a18 [ 222.706624][ T6300] get_tree_bdev+0x358/0x544 [ 222.707367][ T6300] gfs2_get_tree+0x54/0x1b4 [ 222.708133][ T6300] vfs_get_tree+0x90/0x274 [ 222.708884][ T6300] do_new_mount+0x228/0x810 [ 222.709653][ T6300] path_mount+0x5bc/0x1008 [ 222.710369][ T6300] __arm64_sys_mount+0x514/0x5f0 [ 222.711176][ T6300] invoke_syscall+0x98/0x2b0 [ 222.711894][ T6300] el0_svc_common+0x138/0x258 [ 222.712690][ T6300] do_el0_svc+0x58/0x13c [ 222.713401][ T6300] el0_svc+0x78/0x1d0 [ 222.714043][ T6300] el0t_64_sync_handler+0xcc/0xe4 [ 222.714788][ T6300] el0t_64_sync+0x1a0/0x1a4 [ 222.717145][ T6300] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.719308][ T6300] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.893046][ T6302] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.894303][ T6302] CPU: 1 PID: 6302 Comm: syz.1.664 Not tainted syzkaller #0 [ 222.895504][ T6302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.896985][ T6302] Call trace: [ 222.897508][ T6302] dump_backtrace+0x0/0x458 [ 222.898183][ T6302] show_stack+0x2c/0x3c [ 222.898800][ T6302] __dump_stack+0x30/0x40 [ 222.899502][ T6302] dump_stack_lvl+0xf4/0x15c [ 222.900209][ T6302] dump_stack+0x1c/0x5c [ 222.900899][ T6302] sysfs_create_dir_ns+0x244/0x264 [ 222.901753][ T6302] kobject_add_internal+0x5ac/0xc3c [ 222.902615][ T6302] kobject_init_and_add+0x124/0x190 [ 222.903475][ T6302] gfs2_sys_fs_add+0x200/0x41c [ 222.904312][ T6302] gfs2_fill_super+0xddc/0x1a18 [ 222.905167][ T6302] get_tree_bdev+0x358/0x544 [ 222.905908][ T6302] gfs2_get_tree+0x54/0x1b4 [ 222.906672][ T6302] vfs_get_tree+0x90/0x274 [ 222.907424][ T6302] do_new_mount+0x228/0x810 [ 222.908186][ T6302] path_mount+0x5bc/0x1008 [ 222.908922][ T6302] __arm64_sys_mount+0x514/0x5f0 [ 222.909688][ T6302] invoke_syscall+0x98/0x2b0 [ 222.910439][ T6302] el0_svc_common+0x138/0x258 [ 222.911223][ T6302] do_el0_svc+0x58/0x13c [ 222.911898][ T6302] el0_svc+0x78/0x1d0 [ 222.912542][ T6302] el0t_64_sync_handler+0xcc/0xe4 [ 222.913292][ T6302] el0t_64_sync+0x1a0/0x1a4 [ 222.914837][ T6302] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.916857][ T6302] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.099147][ T6304] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.100463][ T6304] CPU: 1 PID: 6304 Comm: syz.1.665 Not tainted syzkaller #0 [ 223.101670][ T6304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.103357][ T6304] Call trace: [ 223.103874][ T6304] dump_backtrace+0x0/0x458 [ 223.104604][ T6304] show_stack+0x2c/0x3c [ 223.105275][ T6304] __dump_stack+0x30/0x40 [ 223.105976][ T6304] dump_stack_lvl+0xf4/0x15c [ 223.106736][ T6304] dump_stack+0x1c/0x5c [ 223.107361][ T6304] sysfs_create_dir_ns+0x244/0x264 [ 223.108141][ T6304] kobject_add_internal+0x5ac/0xc3c [ 223.108941][ T6304] kobject_init_and_add+0x124/0x190 [ 223.109754][ T6304] gfs2_sys_fs_add+0x200/0x41c [ 223.110457][ T6304] gfs2_fill_super+0xddc/0x1a18 [ 223.111271][ T6304] get_tree_bdev+0x358/0x544 [ 223.112039][ T6304] gfs2_get_tree+0x54/0x1b4 [ 223.112785][ T6304] vfs_get_tree+0x90/0x274 [ 223.113544][ T6304] do_new_mount+0x228/0x810 [ 223.114286][ T6304] path_mount+0x5bc/0x1008 [ 223.115040][ T6304] __arm64_sys_mount+0x514/0x5f0 [ 223.115864][ T6304] invoke_syscall+0x98/0x2b0 [ 223.116638][ T6304] el0_svc_common+0x138/0x258 [ 223.117369][ T6304] do_el0_svc+0x58/0x13c [ 223.118046][ T6304] el0_svc+0x78/0x1d0 [ 223.118705][ T6304] el0t_64_sync_handler+0xcc/0xe4 [ 223.119503][ T6304] el0t_64_sync+0x1a0/0x1a4 [ 223.121666][ T6304] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.123697][ T6304] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.299170][ T6306] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.300460][ T6306] CPU: 1 PID: 6306 Comm: syz.1.666 Not tainted syzkaller #0 [ 223.301597][ T6306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.303231][ T6306] Call trace: [ 223.303754][ T6306] dump_backtrace+0x0/0x458 [ 223.304523][ T6306] show_stack+0x2c/0x3c [ 223.305274][ T6306] __dump_stack+0x30/0x40 [ 223.306003][ T6306] dump_stack_lvl+0xf4/0x15c [ 223.306675][ T6306] dump_stack+0x1c/0x5c [ 223.307322][ T6306] sysfs_create_dir_ns+0x244/0x264 [ 223.308177][ T6306] kobject_add_internal+0x5ac/0xc3c [ 223.309053][ T6306] kobject_init_and_add+0x124/0x190 [ 223.309889][ T6306] gfs2_sys_fs_add+0x200/0x41c [ 223.310704][ T6306] gfs2_fill_super+0xddc/0x1a18 [ 223.311504][ T6306] get_tree_bdev+0x358/0x544 [ 223.312256][ T6306] gfs2_get_tree+0x54/0x1b4 [ 223.312974][ T6306] vfs_get_tree+0x90/0x274 [ 223.313764][ T6306] do_new_mount+0x228/0x810 [ 223.314483][ T6306] path_mount+0x5bc/0x1008 [ 223.315222][ T6306] __arm64_sys_mount+0x514/0x5f0 [ 223.316037][ T6306] invoke_syscall+0x98/0x2b0 [ 223.316842][ T6306] el0_svc_common+0x138/0x258 [ 223.317593][ T6306] do_el0_svc+0x58/0x13c [ 223.318240][ T6306] el0_svc+0x78/0x1d0 [ 223.318830][ T6306] el0t_64_sync_handler+0xcc/0xe4 [ 223.319595][ T6306] el0t_64_sync+0x1a0/0x1a4 [ 223.321745][ T6306] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.323949][ T6306] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:43 executed programs: 653 [ 223.472089][ T6308] set_capacity_and_notify: 15 callbacks suppressed [ 223.472099][ T6308] loop1: detected capacity change from 0 to 32768 [ 223.511537][ T6308] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.512873][ T6308] CPU: 0 PID: 6308 Comm: syz.1.667 Not tainted syzkaller #0 [ 223.513970][ T6308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.515664][ T6308] Call trace: [ 223.516171][ T6308] dump_backtrace+0x0/0x458 [ 223.516938][ T6308] show_stack+0x2c/0x3c [ 223.517690][ T6308] __dump_stack+0x30/0x40 [ 223.518465][ T6308] dump_stack_lvl+0xf4/0x15c [ 223.519267][ T6308] dump_stack+0x1c/0x5c [ 223.519997][ T6308] sysfs_create_dir_ns+0x244/0x264 [ 223.520839][ T6308] kobject_add_internal+0x5ac/0xc3c [ 223.521743][ T6308] kobject_init_and_add+0x124/0x190 [ 223.522649][ T6308] gfs2_sys_fs_add+0x200/0x41c [ 223.523445][ T6308] gfs2_fill_super+0xddc/0x1a18 [ 223.524232][ T6308] get_tree_bdev+0x358/0x544 [ 223.524994][ T6308] gfs2_get_tree+0x54/0x1b4 [ 223.525682][ T6308] vfs_get_tree+0x90/0x274 [ 223.526427][ T6308] do_new_mount+0x228/0x810 [ 223.527177][ T6308] path_mount+0x5bc/0x1008 [ 223.527868][ T6308] __arm64_sys_mount+0x514/0x5f0 [ 223.528664][ T6308] invoke_syscall+0x98/0x2b0 [ 223.529441][ T6308] el0_svc_common+0x138/0x258 [ 223.530174][ T6308] do_el0_svc+0x58/0x13c [ 223.530874][ T6308] el0_svc+0x78/0x1d0 [ 223.531476][ T6308] el0t_64_sync_handler+0xcc/0xe4 [ 223.532305][ T6308] el0t_64_sync+0x1a0/0x1a4 [ 223.533351][ T6308] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.535591][ T6308] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.667594][ T6310] loop1: detected capacity change from 0 to 32768 [ 223.674873][ T6310] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.676218][ T6310] CPU: 1 PID: 6310 Comm: syz.1.668 Not tainted syzkaller #0 [ 223.677349][ T6310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.678937][ T6310] Call trace: [ 223.679480][ T6310] dump_backtrace+0x0/0x458 [ 223.680206][ T6310] show_stack+0x2c/0x3c [ 223.680917][ T6310] __dump_stack+0x30/0x40 [ 223.681691][ T6310] dump_stack_lvl+0xf4/0x15c [ 223.682505][ T6310] dump_stack+0x1c/0x5c [ 223.683173][ T6310] sysfs_create_dir_ns+0x244/0x264 [ 223.684073][ T6310] kobject_add_internal+0x5ac/0xc3c [ 223.684965][ T6310] kobject_init_and_add+0x124/0x190 [ 223.685881][ T6310] gfs2_sys_fs_add+0x200/0x41c [ 223.686656][ T6310] gfs2_fill_super+0xddc/0x1a18 [ 223.687500][ T6310] get_tree_bdev+0x358/0x544 [ 223.688264][ T6310] gfs2_get_tree+0x54/0x1b4 [ 223.689064][ T6310] vfs_get_tree+0x90/0x274 [ 223.689770][ T6310] do_new_mount+0x228/0x810 [ 223.690453][ T6310] path_mount+0x5bc/0x1008 [ 223.691088][ T6310] __arm64_sys_mount+0x514/0x5f0 [ 223.691887][ T6310] invoke_syscall+0x98/0x2b0 [ 223.692659][ T6310] el0_svc_common+0x138/0x258 [ 223.693448][ T6310] do_el0_svc+0x58/0x13c [ 223.694129][ T6310] el0_svc+0x78/0x1d0 [ 223.694835][ T6310] el0t_64_sync_handler+0xcc/0xe4 [ 223.695715][ T6310] el0t_64_sync+0x1a0/0x1a4 [ 223.696580][ T6310] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.698628][ T6310] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.830958][ T6312] loop1: detected capacity change from 0 to 32768 [ 223.840083][ T6312] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.841335][ T6312] CPU: 1 PID: 6312 Comm: syz.1.669 Not tainted syzkaller #0 [ 223.842528][ T6312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.844215][ T6312] Call trace: [ 223.844748][ T6312] dump_backtrace+0x0/0x458 [ 223.845542][ T6312] show_stack+0x2c/0x3c [ 223.846244][ T6312] __dump_stack+0x30/0x40 [ 223.846905][ T6312] dump_stack_lvl+0xf4/0x15c [ 223.847610][ T6312] dump_stack+0x1c/0x5c [ 223.848336][ T6312] sysfs_create_dir_ns+0x244/0x264 [ 223.849220][ T6312] kobject_add_internal+0x5ac/0xc3c [ 223.850129][ T6312] kobject_init_and_add+0x124/0x190 [ 223.850982][ T6312] gfs2_sys_fs_add+0x200/0x41c [ 223.851803][ T6312] gfs2_fill_super+0xddc/0x1a18 [ 223.852559][ T6312] get_tree_bdev+0x358/0x544 [ 223.853248][ T6312] gfs2_get_tree+0x54/0x1b4 [ 223.854031][ T6312] vfs_get_tree+0x90/0x274 [ 223.854760][ T6312] do_new_mount+0x228/0x810 [ 223.855482][ T6312] path_mount+0x5bc/0x1008 [ 223.856210][ T6312] __arm64_sys_mount+0x514/0x5f0 [ 223.857071][ T6312] invoke_syscall+0x98/0x2b0 [ 223.857764][ T6312] el0_svc_common+0x138/0x258 [ 223.858526][ T6312] do_el0_svc+0x58/0x13c [ 223.859261][ T6312] el0_svc+0x78/0x1d0 [ 223.859930][ T6312] el0t_64_sync_handler+0xcc/0xe4 [ 223.860825][ T6312] el0t_64_sync+0x1a0/0x1a4 [ 223.861999][ T6312] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.863960][ T6312] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.996497][ T6314] loop1: detected capacity change from 0 to 32768 [ 224.003747][ T6314] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.005109][ T6314] CPU: 1 PID: 6314 Comm: syz.1.670 Not tainted syzkaller #0 [ 224.006356][ T6314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.007956][ T6314] Call trace: [ 224.008461][ T6314] dump_backtrace+0x0/0x458 [ 224.009222][ T6314] show_stack+0x2c/0x3c [ 224.009873][ T6314] __dump_stack+0x30/0x40 [ 224.010607][ T6314] dump_stack_lvl+0xf4/0x15c [ 224.011386][ T6314] dump_stack+0x1c/0x5c [ 224.012091][ T6314] sysfs_create_dir_ns+0x244/0x264 [ 224.012983][ T6314] kobject_add_internal+0x5ac/0xc3c [ 224.013843][ T6314] kobject_init_and_add+0x124/0x190 [ 224.014687][ T6314] gfs2_sys_fs_add+0x200/0x41c [ 224.015442][ T6314] gfs2_fill_super+0xddc/0x1a18 [ 224.016223][ T6314] get_tree_bdev+0x358/0x544 [ 224.016999][ T6314] gfs2_get_tree+0x54/0x1b4 [ 224.017740][ T6314] vfs_get_tree+0x90/0x274 [ 224.018515][ T6314] do_new_mount+0x228/0x810 [ 224.019266][ T6314] path_mount+0x5bc/0x1008 [ 224.019981][ T6314] __arm64_sys_mount+0x514/0x5f0 [ 224.020812][ T6314] invoke_syscall+0x98/0x2b0 [ 224.021538][ T6314] el0_svc_common+0x138/0x258 [ 224.022323][ T6314] do_el0_svc+0x58/0x13c [ 224.022983][ T6314] el0_svc+0x78/0x1d0 [ 224.023589][ T6314] el0t_64_sync_handler+0xcc/0xe4 [ 224.024390][ T6314] el0t_64_sync+0x1a0/0x1a4 [ 224.027037][ T6314] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.029238][ T6314] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.160770][ T6316] loop1: detected capacity change from 0 to 32768 [ 224.203235][ T6316] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.204446][ T6316] CPU: 0 PID: 6316 Comm: syz.1.671 Not tainted syzkaller #0 [ 224.205581][ T6316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.207202][ T6316] Call trace: [ 224.207678][ T6316] dump_backtrace+0x0/0x458 [ 224.208456][ T6316] show_stack+0x2c/0x3c [ 224.209156][ T6316] __dump_stack+0x30/0x40 [ 224.209861][ T6316] dump_stack_lvl+0xf4/0x15c [ 224.210671][ T6316] dump_stack+0x1c/0x5c [ 224.211445][ T6316] sysfs_create_dir_ns+0x244/0x264 [ 224.212278][ T6316] kobject_add_internal+0x5ac/0xc3c [ 224.213151][ T6316] kobject_init_and_add+0x124/0x190 [ 224.214050][ T6316] gfs2_sys_fs_add+0x200/0x41c [ 224.214848][ T6316] gfs2_fill_super+0xddc/0x1a18 [ 224.215646][ T6316] get_tree_bdev+0x358/0x544 [ 224.216467][ T6316] gfs2_get_tree+0x54/0x1b4 [ 224.217179][ T6316] vfs_get_tree+0x90/0x274 [ 224.217949][ T6316] do_new_mount+0x228/0x810 [ 224.218657][ T6316] path_mount+0x5bc/0x1008 [ 224.219386][ T6316] __arm64_sys_mount+0x514/0x5f0 [ 224.220143][ T6316] invoke_syscall+0x98/0x2b0 [ 224.220820][ T6316] el0_svc_common+0x138/0x258 [ 224.221614][ T6316] do_el0_svc+0x58/0x13c [ 224.222369][ T6316] el0_svc+0x78/0x1d0 [ 224.223084][ T6316] el0t_64_sync_handler+0xcc/0xe4 [ 224.223925][ T6316] el0t_64_sync+0x1a0/0x1a4 [ 224.224854][ T6316] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.227219][ T6316] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.362368][ T6318] loop1: detected capacity change from 0 to 32768 [ 224.404400][ T6318] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.405679][ T6318] CPU: 0 PID: 6318 Comm: syz.1.672 Not tainted syzkaller #0 [ 224.406821][ T6318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.408443][ T6318] Call trace: [ 224.409002][ T6318] dump_backtrace+0x0/0x458 [ 224.409778][ T6318] show_stack+0x2c/0x3c [ 224.410412][ T6318] __dump_stack+0x30/0x40 [ 224.411220][ T6318] dump_stack_lvl+0xf4/0x15c [ 224.412007][ T6318] dump_stack+0x1c/0x5c [ 224.412735][ T6318] sysfs_create_dir_ns+0x244/0x264 [ 224.413657][ T6318] kobject_add_internal+0x5ac/0xc3c [ 224.414544][ T6318] kobject_init_and_add+0x124/0x190 [ 224.415402][ T6318] gfs2_sys_fs_add+0x200/0x41c [ 224.416213][ T6318] gfs2_fill_super+0xddc/0x1a18 [ 224.417042][ T6318] get_tree_bdev+0x358/0x544 [ 224.417743][ T6318] gfs2_get_tree+0x54/0x1b4 [ 224.418430][ T6318] vfs_get_tree+0x90/0x274 [ 224.419123][ T6318] do_new_mount+0x228/0x810 [ 224.419886][ T6318] path_mount+0x5bc/0x1008 [ 224.420722][ T6318] __arm64_sys_mount+0x514/0x5f0 [ 224.421581][ T6318] invoke_syscall+0x98/0x2b0 [ 224.422367][ T6318] el0_svc_common+0x138/0x258 [ 224.423182][ T6318] do_el0_svc+0x58/0x13c [ 224.423890][ T6318] el0_svc+0x78/0x1d0 [ 224.424523][ T6318] el0t_64_sync_handler+0xcc/0xe4 [ 224.425325][ T6318] el0t_64_sync+0x1a0/0x1a4 [ 224.426449][ T6318] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.428798][ T6318] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.555439][ T6320] loop1: detected capacity change from 0 to 32768 [ 224.637555][ T6320] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.638879][ T6320] CPU: 1 PID: 6320 Comm: syz.1.673 Not tainted syzkaller #0 [ 224.639973][ T6320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.641536][ T6320] Call trace: [ 224.642080][ T6320] dump_backtrace+0x0/0x458 [ 224.642878][ T6320] show_stack+0x2c/0x3c [ 224.643553][ T6320] __dump_stack+0x30/0x40 [ 224.644233][ T6320] dump_stack_lvl+0xf4/0x15c [ 224.645019][ T6320] dump_stack+0x1c/0x5c [ 224.645691][ T6320] sysfs_create_dir_ns+0x244/0x264 [ 224.646496][ T6320] kobject_add_internal+0x5ac/0xc3c [ 224.647300][ T6320] kobject_init_and_add+0x124/0x190 [ 224.648134][ T6320] gfs2_sys_fs_add+0x200/0x41c [ 224.648880][ T6320] gfs2_fill_super+0xddc/0x1a18 [ 224.649746][ T6320] get_tree_bdev+0x358/0x544 [ 224.650549][ T6320] gfs2_get_tree+0x54/0x1b4 [ 224.651318][ T6320] vfs_get_tree+0x90/0x274 [ 224.652056][ T6320] do_new_mount+0x228/0x810 [ 224.652789][ T6320] path_mount+0x5bc/0x1008 [ 224.653534][ T6320] __arm64_sys_mount+0x514/0x5f0 [ 224.654376][ T6320] invoke_syscall+0x98/0x2b0 [ 224.655175][ T6320] el0_svc_common+0x138/0x258 [ 224.655954][ T6320] do_el0_svc+0x58/0x13c [ 224.656673][ T6320] el0_svc+0x78/0x1d0 [ 224.657355][ T6320] el0t_64_sync_handler+0xcc/0xe4 [ 224.658190][ T6320] el0t_64_sync+0x1a0/0x1a4 [ 224.660689][ T6320] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.662625][ T6320] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.888204][ T6322] loop1: detected capacity change from 0 to 32768 [ 224.930813][ T6322] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.932188][ T6322] CPU: 1 PID: 6322 Comm: syz.1.674 Not tainted syzkaller #0 [ 224.933455][ T6322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.934963][ T6322] Call trace: [ 224.935469][ T6322] dump_backtrace+0x0/0x458 [ 224.936207][ T6322] show_stack+0x2c/0x3c [ 224.936826][ T6322] __dump_stack+0x30/0x40 [ 224.937481][ T6322] dump_stack_lvl+0xf4/0x15c [ 224.938267][ T6322] dump_stack+0x1c/0x5c [ 224.938985][ T6322] sysfs_create_dir_ns+0x244/0x264 [ 224.939857][ T6322] kobject_add_internal+0x5ac/0xc3c [ 224.940670][ T6322] kobject_init_and_add+0x124/0x190 [ 224.941448][ T6322] gfs2_sys_fs_add+0x200/0x41c [ 224.942208][ T6322] gfs2_fill_super+0xddc/0x1a18 [ 224.942939][ T6322] get_tree_bdev+0x358/0x544 [ 224.943661][ T6322] gfs2_get_tree+0x54/0x1b4 [ 224.944350][ T6322] vfs_get_tree+0x90/0x274 [ 224.945087][ T6322] do_new_mount+0x228/0x810 [ 224.945873][ T6322] path_mount+0x5bc/0x1008 [ 224.946627][ T6322] __arm64_sys_mount+0x514/0x5f0 [ 224.947408][ T6322] invoke_syscall+0x98/0x2b0 [ 224.948207][ T6322] el0_svc_common+0x138/0x258 [ 224.948947][ T6322] do_el0_svc+0x58/0x13c [ 224.949679][ T6322] el0_svc+0x78/0x1d0 [ 224.950334][ T6322] el0t_64_sync_handler+0xcc/0xe4 [ 224.951173][ T6322] el0t_64_sync+0x1a0/0x1a4 [ 224.953346][ T6322] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.955527][ T6322] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.129745][ T6324] loop1: detected capacity change from 0 to 32768 [ 225.173243][ T6324] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.174509][ T6324] CPU: 1 PID: 6324 Comm: syz.1.675 Not tainted syzkaller #0 [ 225.175764][ T6324] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.177311][ T6324] Call trace: [ 225.177854][ T6324] dump_backtrace+0x0/0x458 [ 225.178591][ T6324] show_stack+0x2c/0x3c [ 225.179290][ T6324] __dump_stack+0x30/0x40 [ 225.180041][ T6324] dump_stack_lvl+0xf4/0x15c [ 225.180824][ T6324] dump_stack+0x1c/0x5c [ 225.181531][ T6324] sysfs_create_dir_ns+0x244/0x264 [ 225.182354][ T6324] kobject_add_internal+0x5ac/0xc3c [ 225.183222][ T6324] kobject_init_and_add+0x124/0x190 [ 225.184042][ T6324] gfs2_sys_fs_add+0x200/0x41c [ 225.184785][ T6324] gfs2_fill_super+0xddc/0x1a18 [ 225.185552][ T6324] get_tree_bdev+0x358/0x544 [ 225.186312][ T6324] gfs2_get_tree+0x54/0x1b4 [ 225.187050][ T6324] vfs_get_tree+0x90/0x274 [ 225.187769][ T6324] do_new_mount+0x228/0x810 [ 225.188494][ T6324] path_mount+0x5bc/0x1008 [ 225.189241][ T6324] __arm64_sys_mount+0x514/0x5f0 [ 225.190006][ T6324] invoke_syscall+0x98/0x2b0 [ 225.190737][ T6324] el0_svc_common+0x138/0x258 [ 225.191556][ T6324] do_el0_svc+0x58/0x13c [ 225.192211][ T6324] el0_svc+0x78/0x1d0 [ 225.192821][ T6324] el0t_64_sync_handler+0xcc/0xe4 [ 225.193639][ T6324] el0t_64_sync+0x1a0/0x1a4 [ 225.194866][ T6324] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.197268][ T6324] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.327344][ T6326] loop1: detected capacity change from 0 to 32768 [ 225.379550][ T6326] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.380741][ T6326] CPU: 1 PID: 6326 Comm: syz.1.676 Not tainted syzkaller #0 [ 225.381783][ T6326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.383224][ T6326] Call trace: [ 225.383668][ T6326] dump_backtrace+0x0/0x458 [ 225.384414][ T6326] show_stack+0x2c/0x3c [ 225.385067][ T6326] __dump_stack+0x30/0x40 [ 225.385820][ T6326] dump_stack_lvl+0xf4/0x15c [ 225.386606][ T6326] dump_stack+0x1c/0x5c [ 225.387251][ T6326] sysfs_create_dir_ns+0x244/0x264 [ 225.388041][ T6326] kobject_add_internal+0x5ac/0xc3c [ 225.388878][ T6326] kobject_init_and_add+0x124/0x190 [ 225.389781][ T6326] gfs2_sys_fs_add+0x200/0x41c [ 225.390554][ T6326] gfs2_fill_super+0xddc/0x1a18 [ 225.391409][ T6326] get_tree_bdev+0x358/0x544 [ 225.392203][ T6326] gfs2_get_tree+0x54/0x1b4 [ 225.392969][ T6326] vfs_get_tree+0x90/0x274 [ 225.393694][ T6326] do_new_mount+0x228/0x810 [ 225.394410][ T6326] path_mount+0x5bc/0x1008 [ 225.395123][ T6326] __arm64_sys_mount+0x514/0x5f0 [ 225.395890][ T6326] invoke_syscall+0x98/0x2b0 [ 225.396644][ T6326] el0_svc_common+0x138/0x258 [ 225.397398][ T6326] do_el0_svc+0x58/0x13c [ 225.398045][ T6326] el0_svc+0x78/0x1d0 [ 225.398688][ T6326] el0t_64_sync_handler+0xcc/0xe4 [ 225.399423][ T6326] el0t_64_sync+0x1a0/0x1a4 [ 225.400522][ T6326] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.402387][ T6326] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.669075][ T6328] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.670181][ T6328] CPU: 1 PID: 6328 Comm: syz.1.677 Not tainted syzkaller #0 [ 225.671302][ T6328] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.672811][ T6328] Call trace: [ 225.673268][ T6328] dump_backtrace+0x0/0x458 [ 225.673916][ T6328] show_stack+0x2c/0x3c [ 225.674484][ T6328] __dump_stack+0x30/0x40 [ 225.675104][ T6328] dump_stack_lvl+0xf4/0x15c [ 225.675857][ T6328] dump_stack+0x1c/0x5c [ 225.676515][ T6328] sysfs_create_dir_ns+0x244/0x264 [ 225.677331][ T6328] kobject_add_internal+0x5ac/0xc3c [ 225.678180][ T6328] kobject_init_and_add+0x124/0x190 [ 225.679067][ T6328] gfs2_sys_fs_add+0x200/0x41c [ 225.679832][ T6328] gfs2_fill_super+0xddc/0x1a18 [ 225.680626][ T6328] get_tree_bdev+0x358/0x544 [ 225.681387][ T6328] gfs2_get_tree+0x54/0x1b4 [ 225.682131][ T6328] vfs_get_tree+0x90/0x274 [ 225.682800][ T6328] do_new_mount+0x228/0x810 [ 225.683499][ T6328] path_mount+0x5bc/0x1008 [ 225.684209][ T6328] __arm64_sys_mount+0x514/0x5f0 [ 225.685000][ T6328] invoke_syscall+0x98/0x2b0 [ 225.685758][ T6328] el0_svc_common+0x138/0x258 [ 225.686512][ T6328] do_el0_svc+0x58/0x13c [ 225.687206][ T6328] el0_svc+0x78/0x1d0 [ 225.687837][ T6328] el0t_64_sync_handler+0xcc/0xe4 [ 225.688685][ T6328] el0t_64_sync+0x1a0/0x1a4 [ 225.691015][ T6328] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.693118][ T6328] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.833442][ T6330] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.834638][ T6330] CPU: 1 PID: 6330 Comm: syz.1.678 Not tainted syzkaller #0 [ 225.835835][ T6330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.837427][ T6330] Call trace: [ 225.838000][ T6330] dump_backtrace+0x0/0x458 [ 225.838782][ T6330] show_stack+0x2c/0x3c [ 225.839514][ T6330] __dump_stack+0x30/0x40 [ 225.840294][ T6330] dump_stack_lvl+0xf4/0x15c [ 225.841055][ T6330] dump_stack+0x1c/0x5c [ 225.841757][ T6330] sysfs_create_dir_ns+0x244/0x264 [ 225.842581][ T6330] kobject_add_internal+0x5ac/0xc3c [ 225.843478][ T6330] kobject_init_and_add+0x124/0x190 [ 225.844299][ T6330] gfs2_sys_fs_add+0x200/0x41c [ 225.845082][ T6330] gfs2_fill_super+0xddc/0x1a18 [ 225.845854][ T6330] get_tree_bdev+0x358/0x544 [ 225.846680][ T6330] gfs2_get_tree+0x54/0x1b4 [ 225.847353][ T6330] vfs_get_tree+0x90/0x274 [ 225.848052][ T6330] do_new_mount+0x228/0x810 [ 225.848739][ T6330] path_mount+0x5bc/0x1008 [ 225.849407][ T6330] __arm64_sys_mount+0x514/0x5f0 [ 225.850153][ T6330] invoke_syscall+0x98/0x2b0 [ 225.850861][ T6330] el0_svc_common+0x138/0x258 [ 225.851577][ T6330] do_el0_svc+0x58/0x13c [ 225.852215][ T6330] el0_svc+0x78/0x1d0 [ 225.852827][ T6330] el0t_64_sync_handler+0xcc/0xe4 [ 225.853624][ T6330] el0t_64_sync+0x1a0/0x1a4 [ 225.854528][ T6330] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.856578][ T6330] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.019234][ T6332] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.020545][ T6332] CPU: 1 PID: 6332 Comm: syz.1.679 Not tainted syzkaller #0 [ 226.021685][ T6332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.023271][ T6332] Call trace: [ 226.023784][ T6332] dump_backtrace+0x0/0x458 [ 226.024515][ T6332] show_stack+0x2c/0x3c [ 226.025204][ T6332] __dump_stack+0x30/0x40 [ 226.025848][ T6332] dump_stack_lvl+0xf4/0x15c [ 226.026645][ T6332] dump_stack+0x1c/0x5c [ 226.027386][ T6332] sysfs_create_dir_ns+0x244/0x264 [ 226.028271][ T6332] kobject_add_internal+0x5ac/0xc3c [ 226.029149][ T6332] kobject_init_and_add+0x124/0x190 [ 226.030014][ T6332] gfs2_sys_fs_add+0x200/0x41c [ 226.030776][ T6332] gfs2_fill_super+0xddc/0x1a18 [ 226.031519][ T6332] get_tree_bdev+0x358/0x544 [ 226.032270][ T6332] gfs2_get_tree+0x54/0x1b4 [ 226.033010][ T6332] vfs_get_tree+0x90/0x274 [ 226.033685][ T6332] do_new_mount+0x228/0x810 [ 226.034439][ T6332] path_mount+0x5bc/0x1008 [ 226.035196][ T6332] __arm64_sys_mount+0x514/0x5f0 [ 226.036042][ T6332] invoke_syscall+0x98/0x2b0 [ 226.036915][ T6332] el0_svc_common+0x138/0x258 [ 226.037678][ T6332] do_el0_svc+0x58/0x13c [ 226.038393][ T6332] el0_svc+0x78/0x1d0 [ 226.039054][ T6332] el0t_64_sync_handler+0xcc/0xe4 [ 226.039994][ T6332] el0t_64_sync+0x1a0/0x1a4 [ 226.040925][ T6332] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.042872][ T6332] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.252315][ T6334] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.253583][ T6334] CPU: 1 PID: 6334 Comm: syz.1.680 Not tainted syzkaller #0 [ 226.254733][ T6334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.256369][ T6334] Call trace: [ 226.256881][ T6334] dump_backtrace+0x0/0x458 [ 226.257571][ T6334] show_stack+0x2c/0x3c [ 226.258217][ T6334] __dump_stack+0x30/0x40 [ 226.258892][ T6334] dump_stack_lvl+0xf4/0x15c [ 226.259639][ T6334] dump_stack+0x1c/0x5c [ 226.260305][ T6334] sysfs_create_dir_ns+0x244/0x264 [ 226.261200][ T6334] kobject_add_internal+0x5ac/0xc3c [ 226.262056][ T6334] kobject_init_and_add+0x124/0x190 [ 226.262902][ T6334] gfs2_sys_fs_add+0x200/0x41c [ 226.263672][ T6334] gfs2_fill_super+0xddc/0x1a18 [ 226.264518][ T6334] get_tree_bdev+0x358/0x544 [ 226.265276][ T6334] gfs2_get_tree+0x54/0x1b4 [ 226.266049][ T6334] vfs_get_tree+0x90/0x274 [ 226.266767][ T6334] do_new_mount+0x228/0x810 [ 226.267456][ T6334] path_mount+0x5bc/0x1008 [ 226.268126][ T6334] __arm64_sys_mount+0x514/0x5f0 [ 226.268947][ T6334] invoke_syscall+0x98/0x2b0 [ 226.269747][ T6334] el0_svc_common+0x138/0x258 [ 226.270519][ T6334] do_el0_svc+0x58/0x13c [ 226.271213][ T6334] el0_svc+0x78/0x1d0 [ 226.271778][ T6334] el0t_64_sync_handler+0xcc/0xe4 [ 226.272486][ T6334] el0t_64_sync+0x1a0/0x1a4 [ 226.273372][ T6334] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.275662][ T6334] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.492317][ T6336] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.493615][ T6336] CPU: 0 PID: 6336 Comm: syz.1.681 Not tainted syzkaller #0 [ 226.494718][ T6336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.496340][ T6336] Call trace: [ 226.496861][ T6336] dump_backtrace+0x0/0x458 [ 226.497574][ T6336] show_stack+0x2c/0x3c [ 226.498233][ T6336] __dump_stack+0x30/0x40 [ 226.498921][ T6336] dump_stack_lvl+0xf4/0x15c [ 226.499773][ T6336] dump_stack+0x1c/0x5c [ 226.500502][ T6336] sysfs_create_dir_ns+0x244/0x264 [ 226.501435][ T6336] kobject_add_internal+0x5ac/0xc3c [ 226.502304][ T6336] kobject_init_and_add+0x124/0x190 [ 226.503120][ T6336] gfs2_sys_fs_add+0x200/0x41c [ 226.503928][ T6336] gfs2_fill_super+0xddc/0x1a18 [ 226.504749][ T6336] get_tree_bdev+0x358/0x544 [ 226.505543][ T6336] gfs2_get_tree+0x54/0x1b4 [ 226.506203][ T6336] vfs_get_tree+0x90/0x274 [ 226.506890][ T6336] do_new_mount+0x228/0x810 [ 226.507561][ T6336] path_mount+0x5bc/0x1008 [ 226.508273][ T6336] __arm64_sys_mount+0x514/0x5f0 [ 226.509161][ T6336] invoke_syscall+0x98/0x2b0 [ 226.509937][ T6336] el0_svc_common+0x138/0x258 [ 226.510759][ T6336] do_el0_svc+0x58/0x13c [ 226.511508][ T6336] el0_svc+0x78/0x1d0 [ 226.512172][ T6336] el0t_64_sync_handler+0xcc/0xe4 [ 226.513005][ T6336] el0t_64_sync+0x1a0/0x1a4 [ 226.515510][ T6336] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.517627][ T6336] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.692919][ T6338] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.694165][ T6338] CPU: 0 PID: 6338 Comm: syz.1.682 Not tainted syzkaller #0 [ 226.695359][ T6338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.696969][ T6338] Call trace: [ 226.697541][ T6338] dump_backtrace+0x0/0x458 [ 226.698275][ T6338] show_stack+0x2c/0x3c [ 226.698967][ T6338] __dump_stack+0x30/0x40 [ 226.699720][ T6338] dump_stack_lvl+0xf4/0x15c [ 226.700494][ T6338] dump_stack+0x1c/0x5c [ 226.701221][ T6338] sysfs_create_dir_ns+0x244/0x264 [ 226.702064][ T6338] kobject_add_internal+0x5ac/0xc3c [ 226.702924][ T6338] kobject_init_and_add+0x124/0x190 [ 226.703709][ T6338] gfs2_sys_fs_add+0x200/0x41c [ 226.704502][ T6338] gfs2_fill_super+0xddc/0x1a18 [ 226.705292][ T6338] get_tree_bdev+0x358/0x544 [ 226.706024][ T6338] gfs2_get_tree+0x54/0x1b4 [ 226.706736][ T6338] vfs_get_tree+0x90/0x274 [ 226.707474][ T6338] do_new_mount+0x228/0x810 [ 226.708212][ T6338] path_mount+0x5bc/0x1008 [ 226.709011][ T6338] __arm64_sys_mount+0x514/0x5f0 [ 226.709910][ T6338] invoke_syscall+0x98/0x2b0 [ 226.710649][ T6338] el0_svc_common+0x138/0x258 [ 226.711429][ T6338] do_el0_svc+0x58/0x13c [ 226.712129][ T6338] el0_svc+0x78/0x1d0 [ 226.712722][ T6338] el0t_64_sync_handler+0xcc/0xe4 [ 226.713484][ T6338] el0t_64_sync+0x1a0/0x1a4 [ 226.715622][ T6338] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.717697][ T6338] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.903723][ T6340] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.905060][ T6340] CPU: 0 PID: 6340 Comm: syz.1.683 Not tainted syzkaller #0 [ 226.906285][ T6340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.907998][ T6340] Call trace: [ 226.908533][ T6340] dump_backtrace+0x0/0x458 [ 226.909285][ T6340] show_stack+0x2c/0x3c [ 226.910012][ T6340] __dump_stack+0x30/0x40 [ 226.910768][ T6340] dump_stack_lvl+0xf4/0x15c [ 226.911541][ T6340] dump_stack+0x1c/0x5c [ 226.912250][ T6340] sysfs_create_dir_ns+0x244/0x264 [ 226.913086][ T6340] kobject_add_internal+0x5ac/0xc3c [ 226.913936][ T6340] kobject_init_and_add+0x124/0x190 [ 226.914750][ T6340] gfs2_sys_fs_add+0x200/0x41c [ 226.915524][ T6340] gfs2_fill_super+0xddc/0x1a18 [ 226.916261][ T6340] get_tree_bdev+0x358/0x544 [ 226.916950][ T6340] gfs2_get_tree+0x54/0x1b4 [ 226.917630][ T6340] vfs_get_tree+0x90/0x274 [ 226.918278][ T6340] do_new_mount+0x228/0x810 [ 226.918945][ T6340] path_mount+0x5bc/0x1008 [ 226.919610][ T6340] __arm64_sys_mount+0x514/0x5f0 [ 226.920427][ T6340] invoke_syscall+0x98/0x2b0 [ 226.921248][ T6340] el0_svc_common+0x138/0x258 [ 226.922061][ T6340] do_el0_svc+0x58/0x13c [ 226.922795][ T6340] el0_svc+0x78/0x1d0 [ 226.923422][ T6340] el0t_64_sync_handler+0xcc/0xe4 [ 226.924276][ T6340] el0t_64_sync+0x1a0/0x1a4 [ 226.926557][ T6340] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.928807][ T6340] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.109070][ T6342] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.110338][ T6342] CPU: 0 PID: 6342 Comm: syz.1.684 Not tainted syzkaller #0 [ 227.111649][ T6342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.113327][ T6342] Call trace: [ 227.113867][ T6342] dump_backtrace+0x0/0x458 [ 227.114529][ T6342] show_stack+0x2c/0x3c [ 227.115234][ T6342] __dump_stack+0x30/0x40 [ 227.115960][ T6342] dump_stack_lvl+0xf4/0x15c [ 227.116698][ T6342] dump_stack+0x1c/0x5c [ 227.117366][ T6342] sysfs_create_dir_ns+0x244/0x264 [ 227.118279][ T6342] kobject_add_internal+0x5ac/0xc3c [ 227.119169][ T6342] kobject_init_and_add+0x124/0x190 [ 227.120049][ T6342] gfs2_sys_fs_add+0x200/0x41c [ 227.120903][ T6342] gfs2_fill_super+0xddc/0x1a18 [ 227.121750][ T6342] get_tree_bdev+0x358/0x544 [ 227.122523][ T6342] gfs2_get_tree+0x54/0x1b4 [ 227.123181][ T6342] vfs_get_tree+0x90/0x274 [ 227.123910][ T6342] do_new_mount+0x228/0x810 [ 227.124596][ T6342] path_mount+0x5bc/0x1008 [ 227.125324][ T6342] __arm64_sys_mount+0x514/0x5f0 [ 227.126081][ T6342] invoke_syscall+0x98/0x2b0 [ 227.126805][ T6342] el0_svc_common+0x138/0x258 [ 227.127584][ T6342] do_el0_svc+0x58/0x13c [ 227.128275][ T6342] el0_svc+0x78/0x1d0 [ 227.128876][ T6342] el0t_64_sync_handler+0xcc/0xe4 [ 227.129725][ T6342] el0t_64_sync+0x1a0/0x1a4 [ 227.132308][ T6342] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.134557][ T6342] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.303540][ T6344] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.304770][ T6344] CPU: 0 PID: 6344 Comm: syz.1.685 Not tainted syzkaller #0 [ 227.305927][ T6344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.307533][ T6344] Call trace: [ 227.308045][ T6344] dump_backtrace+0x0/0x458 [ 227.308734][ T6344] show_stack+0x2c/0x3c [ 227.309407][ T6344] __dump_stack+0x30/0x40 [ 227.310137][ T6344] dump_stack_lvl+0xf4/0x15c [ 227.310895][ T6344] dump_stack+0x1c/0x5c [ 227.311569][ T6344] sysfs_create_dir_ns+0x244/0x264 [ 227.312328][ T6344] kobject_add_internal+0x5ac/0xc3c [ 227.313194][ T6344] kobject_init_and_add+0x124/0x190 [ 227.314066][ T6344] gfs2_sys_fs_add+0x200/0x41c [ 227.314888][ T6344] gfs2_fill_super+0xddc/0x1a18 [ 227.315742][ T6344] get_tree_bdev+0x358/0x544 [ 227.316535][ T6344] gfs2_get_tree+0x54/0x1b4 [ 227.317275][ T6344] vfs_get_tree+0x90/0x274 [ 227.318027][ T6344] do_new_mount+0x228/0x810 [ 227.318768][ T6344] path_mount+0x5bc/0x1008 [ 227.319510][ T6344] __arm64_sys_mount+0x514/0x5f0 [ 227.320261][ T6344] invoke_syscall+0x98/0x2b0 [ 227.320993][ T6344] el0_svc_common+0x138/0x258 [ 227.321730][ T6344] do_el0_svc+0x58/0x13c [ 227.322480][ T6344] el0_svc+0x78/0x1d0 [ 227.323149][ T6344] el0t_64_sync_handler+0xcc/0xe4 [ 227.323971][ T6344] el0t_64_sync+0x1a0/0x1a4 [ 227.326449][ T6344] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.328867][ T6344] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.489149][ T6346] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.490350][ T6346] CPU: 0 PID: 6346 Comm: syz.1.686 Not tainted syzkaller #0 [ 227.491528][ T6346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.493127][ T6346] Call trace: [ 227.493667][ T6346] dump_backtrace+0x0/0x458 [ 227.494329][ T6346] show_stack+0x2c/0x3c [ 227.494936][ T6346] __dump_stack+0x30/0x40 [ 227.495611][ T6346] dump_stack_lvl+0xf4/0x15c [ 227.496366][ T6346] dump_stack+0x1c/0x5c [ 227.496980][ T6346] sysfs_create_dir_ns+0x244/0x264 [ 227.497784][ T6346] kobject_add_internal+0x5ac/0xc3c [ 227.498692][ T6346] kobject_init_and_add+0x124/0x190 [ 227.499603][ T6346] gfs2_sys_fs_add+0x200/0x41c [ 227.500431][ T6346] gfs2_fill_super+0xddc/0x1a18 [ 227.501274][ T6346] get_tree_bdev+0x358/0x544 [ 227.502026][ T6346] gfs2_get_tree+0x54/0x1b4 [ 227.502822][ T6346] vfs_get_tree+0x90/0x274 [ 227.503581][ T6346] do_new_mount+0x228/0x810 [ 227.504356][ T6346] path_mount+0x5bc/0x1008 [ 227.505137][ T6346] __arm64_sys_mount+0x514/0x5f0 [ 227.506043][ T6346] invoke_syscall+0x98/0x2b0 [ 227.506833][ T6346] el0_svc_common+0x138/0x258 [ 227.507670][ T6346] do_el0_svc+0x58/0x13c [ 227.508424][ T6346] el0_svc+0x78/0x1d0 [ 227.509162][ T6346] el0t_64_sync_handler+0xcc/0xe4 [ 227.509983][ T6346] el0t_64_sync+0x1a0/0x1a4 [ 227.512082][ T6346] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.514069][ T6346] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.729956][ T6348] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.731277][ T6348] CPU: 1 PID: 6348 Comm: syz.1.687 Not tainted syzkaller #0 [ 227.732440][ T6348] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.733983][ T6348] Call trace: [ 227.734551][ T6348] dump_backtrace+0x0/0x458 [ 227.735256][ T6348] show_stack+0x2c/0x3c [ 227.735933][ T6348] __dump_stack+0x30/0x40 [ 227.736597][ T6348] dump_stack_lvl+0xf4/0x15c [ 227.737341][ T6348] dump_stack+0x1c/0x5c [ 227.738004][ T6348] sysfs_create_dir_ns+0x244/0x264 [ 227.738864][ T6348] kobject_add_internal+0x5ac/0xc3c [ 227.739733][ T6348] kobject_init_and_add+0x124/0x190 [ 227.740589][ T6348] gfs2_sys_fs_add+0x200/0x41c [ 227.741422][ T6348] gfs2_fill_super+0xddc/0x1a18 [ 227.742221][ T6348] get_tree_bdev+0x358/0x544 [ 227.742947][ T6348] gfs2_get_tree+0x54/0x1b4 [ 227.743656][ T6348] vfs_get_tree+0x90/0x274 [ 227.744418][ T6348] do_new_mount+0x228/0x810 [ 227.745148][ T6348] path_mount+0x5bc/0x1008 [ 227.745849][ T6348] __arm64_sys_mount+0x514/0x5f0 [ 227.746619][ T6348] invoke_syscall+0x98/0x2b0 [ 227.747341][ T6348] el0_svc_common+0x138/0x258 [ 227.748095][ T6348] do_el0_svc+0x58/0x13c [ 227.748781][ T6348] el0_svc+0x78/0x1d0 [ 227.749407][ T6348] el0t_64_sync_handler+0xcc/0xe4 [ 227.750293][ T6348] el0t_64_sync+0x1a0/0x1a4 [ 227.751613][ T6348] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.753698][ T6348] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.894623][ T6350] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.895897][ T6350] CPU: 0 PID: 6350 Comm: syz.1.688 Not tainted syzkaller #0 [ 227.897100][ T6350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.898817][ T6350] Call trace: [ 227.899402][ T6350] dump_backtrace+0x0/0x458 [ 227.900166][ T6350] show_stack+0x2c/0x3c [ 227.900845][ T6350] __dump_stack+0x30/0x40 [ 227.901537][ T6350] dump_stack_lvl+0xf4/0x15c [ 227.902312][ T6350] dump_stack+0x1c/0x5c [ 227.902974][ T6350] sysfs_create_dir_ns+0x244/0x264 [ 227.903859][ T6350] kobject_add_internal+0x5ac/0xc3c [ 227.904735][ T6350] kobject_init_and_add+0x124/0x190 [ 227.905560][ T6350] gfs2_sys_fs_add+0x200/0x41c [ 227.906342][ T6350] gfs2_fill_super+0xddc/0x1a18 [ 227.907111][ T6350] get_tree_bdev+0x358/0x544 [ 227.907845][ T6350] gfs2_get_tree+0x54/0x1b4 [ 227.908661][ T6350] vfs_get_tree+0x90/0x274 [ 227.909395][ T6350] do_new_mount+0x228/0x810 [ 227.910070][ T6350] path_mount+0x5bc/0x1008 [ 227.910760][ T6350] __arm64_sys_mount+0x514/0x5f0 [ 227.911576][ T6350] invoke_syscall+0x98/0x2b0 [ 227.912339][ T6350] el0_svc_common+0x138/0x258 [ 227.913194][ T6350] do_el0_svc+0x58/0x13c [ 227.913922][ T6350] el0_svc+0x78/0x1d0 [ 227.914617][ T6350] el0t_64_sync_handler+0xcc/0xe4 [ 227.915522][ T6350] el0t_64_sync+0x1a0/0x1a4 [ 227.917720][ T6350] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.920217][ T6350] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.113212][ T6352] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.114573][ T6352] CPU: 1 PID: 6352 Comm: syz.1.689 Not tainted syzkaller #0 [ 228.115832][ T6352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.117332][ T6352] Call trace: [ 228.117826][ T6352] dump_backtrace+0x0/0x458 [ 228.118576][ T6352] show_stack+0x2c/0x3c [ 228.119322][ T6352] __dump_stack+0x30/0x40 [ 228.120009][ T6352] dump_stack_lvl+0xf4/0x15c [ 228.120715][ T6352] dump_stack+0x1c/0x5c [ 228.121392][ T6352] sysfs_create_dir_ns+0x244/0x264 [ 228.122232][ T6352] kobject_add_internal+0x5ac/0xc3c [ 228.123032][ T6352] kobject_init_and_add+0x124/0x190 [ 228.123798][ T6352] gfs2_sys_fs_add+0x200/0x41c [ 228.124600][ T6352] gfs2_fill_super+0xddc/0x1a18 [ 228.125401][ T6352] get_tree_bdev+0x358/0x544 [ 228.126114][ T6352] gfs2_get_tree+0x54/0x1b4 [ 228.126886][ T6352] vfs_get_tree+0x90/0x274 [ 228.127648][ T6352] do_new_mount+0x228/0x810 [ 228.128359][ T6352] path_mount+0x5bc/0x1008 [ 228.129156][ T6352] __arm64_sys_mount+0x514/0x5f0 [ 228.129959][ T6352] invoke_syscall+0x98/0x2b0 [ 228.130713][ T6352] el0_svc_common+0x138/0x258 [ 228.131458][ T6352] do_el0_svc+0x58/0x13c [ 228.132199][ T6352] el0_svc+0x78/0x1d0 [ 228.132839][ T6352] el0t_64_sync_handler+0xcc/0xe4 [ 228.133633][ T6352] el0t_64_sync+0x1a0/0x1a4 [ 228.135956][ T6352] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.138118][ T6352] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.330915][ T6354] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.332168][ T6354] CPU: 0 PID: 6354 Comm: syz.1.690 Not tainted syzkaller #0 [ 228.333288][ T6354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.334999][ T6354] Call trace: [ 228.335530][ T6354] dump_backtrace+0x0/0x458 [ 228.336258][ T6354] show_stack+0x2c/0x3c [ 228.336975][ T6354] __dump_stack+0x30/0x40 [ 228.337726][ T6354] dump_stack_lvl+0xf4/0x15c [ 228.338488][ T6354] dump_stack+0x1c/0x5c [ 228.339206][ T6354] sysfs_create_dir_ns+0x244/0x264 [ 228.340085][ T6354] kobject_add_internal+0x5ac/0xc3c [ 228.340957][ T6354] kobject_init_and_add+0x124/0x190 [ 228.341810][ T6354] gfs2_sys_fs_add+0x200/0x41c [ 228.342553][ T6354] gfs2_fill_super+0xddc/0x1a18 [ 228.343326][ T6354] get_tree_bdev+0x358/0x544 [ 228.344065][ T6354] gfs2_get_tree+0x54/0x1b4 [ 228.344826][ T6354] vfs_get_tree+0x90/0x274 [ 228.345606][ T6354] do_new_mount+0x228/0x810 [ 228.346349][ T6354] path_mount+0x5bc/0x1008 [ 228.347070][ T6354] __arm64_sys_mount+0x514/0x5f0 [ 228.347860][ T6354] invoke_syscall+0x98/0x2b0 [ 228.348605][ T6354] el0_svc_common+0x138/0x258 [ 228.349343][ T6354] do_el0_svc+0x58/0x13c [ 228.350019][ T6354] el0_svc+0x78/0x1d0 [ 228.350661][ T6354] el0t_64_sync_handler+0xcc/0xe4 [ 228.351477][ T6354] el0t_64_sync+0x1a0/0x1a4 [ 228.356233][ T6354] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.358385][ T6354] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:48 executed programs: 677 [ 228.496397][ T6356] set_capacity_and_notify: 14 callbacks suppressed [ 228.496407][ T6356] loop1: detected capacity change from 0 to 32768 [ 228.504886][ T6356] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.506103][ T6356] CPU: 1 PID: 6356 Comm: syz.1.691 Not tainted syzkaller #0 [ 228.507258][ T6356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.508835][ T6356] Call trace: [ 228.509623][ T6356] dump_backtrace+0x0/0x458 [ 228.510313][ T6356] show_stack+0x2c/0x3c [ 228.510984][ T6356] __dump_stack+0x30/0x40 [ 228.511746][ T6356] dump_stack_lvl+0xf4/0x15c [ 228.512561][ T6356] dump_stack+0x1c/0x5c [ 228.513282][ T6356] sysfs_create_dir_ns+0x244/0x264 [ 228.514058][ T6356] kobject_add_internal+0x5ac/0xc3c [ 228.514947][ T6356] kobject_init_and_add+0x124/0x190 [ 228.515749][ T6356] gfs2_sys_fs_add+0x200/0x41c [ 228.516492][ T6356] gfs2_fill_super+0xddc/0x1a18 [ 228.517326][ T6356] get_tree_bdev+0x358/0x544 [ 228.518047][ T6356] gfs2_get_tree+0x54/0x1b4 [ 228.518824][ T6356] vfs_get_tree+0x90/0x274 [ 228.519530][ T6356] do_new_mount+0x228/0x810 [ 228.520333][ T6356] path_mount+0x5bc/0x1008 [ 228.521082][ T6356] __arm64_sys_mount+0x514/0x5f0 [ 228.521912][ T6356] invoke_syscall+0x98/0x2b0 [ 228.522634][ T6356] el0_svc_common+0x138/0x258 [ 228.523398][ T6356] do_el0_svc+0x58/0x13c [ 228.524039][ T6356] el0_svc+0x78/0x1d0 [ 228.524713][ T6356] el0t_64_sync_handler+0xcc/0xe4 [ 228.525535][ T6356] el0t_64_sync+0x1a0/0x1a4 [ 228.526442][ T6356] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.529122][ T6356] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.659563][ T6358] loop1: detected capacity change from 0 to 32768 [ 228.667076][ T6358] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.668378][ T6358] CPU: 1 PID: 6358 Comm: syz.1.692 Not tainted syzkaller #0 [ 228.669409][ T6358] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.670949][ T6358] Call trace: [ 228.671463][ T6358] dump_backtrace+0x0/0x458 [ 228.672156][ T6358] show_stack+0x2c/0x3c [ 228.672853][ T6358] __dump_stack+0x30/0x40 [ 228.673576][ T6358] dump_stack_lvl+0xf4/0x15c [ 228.674300][ T6358] dump_stack+0x1c/0x5c [ 228.674927][ T6358] sysfs_create_dir_ns+0x244/0x264 [ 228.675789][ T6358] kobject_add_internal+0x5ac/0xc3c [ 228.676592][ T6358] kobject_init_and_add+0x124/0x190 [ 228.677427][ T6358] gfs2_sys_fs_add+0x200/0x41c [ 228.678301][ T6358] gfs2_fill_super+0xddc/0x1a18 [ 228.679174][ T6358] get_tree_bdev+0x358/0x544 [ 228.679943][ T6358] gfs2_get_tree+0x54/0x1b4 [ 228.680757][ T6358] vfs_get_tree+0x90/0x274 [ 228.681543][ T6358] do_new_mount+0x228/0x810 [ 228.682377][ T6358] path_mount+0x5bc/0x1008 [ 228.683107][ T6358] __arm64_sys_mount+0x514/0x5f0 [ 228.683892][ T6358] invoke_syscall+0x98/0x2b0 [ 228.684659][ T6358] el0_svc_common+0x138/0x258 [ 228.685432][ T6358] do_el0_svc+0x58/0x13c [ 228.686109][ T6358] el0_svc+0x78/0x1d0 [ 228.686756][ T6358] el0t_64_sync_handler+0xcc/0xe4 [ 228.687605][ T6358] el0t_64_sync+0x1a0/0x1a4 [ 228.688878][ T6358] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.690923][ T6358] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.822636][ T6360] loop1: detected capacity change from 0 to 32768 [ 228.830703][ T6360] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.831939][ T6360] CPU: 0 PID: 6360 Comm: syz.1.693 Not tainted syzkaller #0 [ 228.833064][ T6360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.834615][ T6360] Call trace: [ 228.835120][ T6360] dump_backtrace+0x0/0x458 [ 228.835809][ T6360] show_stack+0x2c/0x3c [ 228.836446][ T6360] __dump_stack+0x30/0x40 [ 228.837128][ T6360] dump_stack_lvl+0xf4/0x15c [ 228.837775][ T6360] dump_stack+0x1c/0x5c [ 228.838480][ T6360] sysfs_create_dir_ns+0x244/0x264 [ 228.839397][ T6360] kobject_add_internal+0x5ac/0xc3c [ 228.840303][ T6360] kobject_init_and_add+0x124/0x190 [ 228.841214][ T6360] gfs2_sys_fs_add+0x200/0x41c [ 228.842057][ T6360] gfs2_fill_super+0xddc/0x1a18 [ 228.842911][ T6360] get_tree_bdev+0x358/0x544 [ 228.843652][ T6360] gfs2_get_tree+0x54/0x1b4 [ 228.844421][ T6360] vfs_get_tree+0x90/0x274 [ 228.845123][ T6360] do_new_mount+0x228/0x810 [ 228.845828][ T6360] path_mount+0x5bc/0x1008 [ 228.846531][ T6360] __arm64_sys_mount+0x514/0x5f0 [ 228.847384][ T6360] invoke_syscall+0x98/0x2b0 [ 228.848148][ T6360] el0_svc_common+0x138/0x258 [ 228.848988][ T6360] do_el0_svc+0x58/0x13c [ 228.849755][ T6360] el0_svc+0x78/0x1d0 [ 228.850416][ T6360] el0t_64_sync_handler+0xcc/0xe4 [ 228.851281][ T6360] el0t_64_sync+0x1a0/0x1a4 [ 228.852154][ T6360] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.854273][ T6360] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.982463][ T6362] loop1: detected capacity change from 0 to 32768 [ 229.074074][ T6362] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.075485][ T6362] CPU: 0 PID: 6362 Comm: syz.1.694 Not tainted syzkaller #0 [ 229.076708][ T6362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.078391][ T6362] Call trace: [ 229.078929][ T6362] dump_backtrace+0x0/0x458 [ 229.079635][ T6362] show_stack+0x2c/0x3c [ 229.080321][ T6362] __dump_stack+0x30/0x40 [ 229.081056][ T6362] dump_stack_lvl+0xf4/0x15c [ 229.081812][ T6362] dump_stack+0x1c/0x5c [ 229.082525][ T6362] sysfs_create_dir_ns+0x244/0x264 [ 229.083358][ T6362] kobject_add_internal+0x5ac/0xc3c [ 229.084197][ T6362] kobject_init_and_add+0x124/0x190 [ 229.085096][ T6362] gfs2_sys_fs_add+0x200/0x41c [ 229.085888][ T6362] gfs2_fill_super+0xddc/0x1a18 [ 229.086672][ T6362] get_tree_bdev+0x358/0x544 [ 229.087482][ T6362] gfs2_get_tree+0x54/0x1b4 [ 229.088246][ T6362] vfs_get_tree+0x90/0x274 [ 229.088966][ T6362] do_new_mount+0x228/0x810 [ 229.089703][ T6362] path_mount+0x5bc/0x1008 [ 229.090464][ T6362] __arm64_sys_mount+0x514/0x5f0 [ 229.091300][ T6362] invoke_syscall+0x98/0x2b0 [ 229.092112][ T6362] el0_svc_common+0x138/0x258 [ 229.092935][ T6362] do_el0_svc+0x58/0x13c [ 229.093680][ T6362] el0_svc+0x78/0x1d0 [ 229.094318][ T6362] el0t_64_sync_handler+0xcc/0xe4 [ 229.095186][ T6362] el0t_64_sync+0x1a0/0x1a4 [ 229.096612][ T6362] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.098957][ T6362] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.226793][ T6364] loop1: detected capacity change from 0 to 32768 [ 229.282943][ T6364] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.284216][ T6364] CPU: 0 PID: 6364 Comm: syz.1.695 Not tainted syzkaller #0 [ 229.285477][ T6364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.287209][ T6364] Call trace: [ 229.287771][ T6364] dump_backtrace+0x0/0x458 [ 229.288515][ T6364] show_stack+0x2c/0x3c [ 229.289183][ T6364] __dump_stack+0x30/0x40 [ 229.289869][ T6364] dump_stack_lvl+0xf4/0x15c [ 229.290605][ T6364] dump_stack+0x1c/0x5c [ 229.291291][ T6364] sysfs_create_dir_ns+0x244/0x264 [ 229.292149][ T6364] kobject_add_internal+0x5ac/0xc3c [ 229.293033][ T6364] kobject_init_and_add+0x124/0x190 [ 229.293851][ T6364] gfs2_sys_fs_add+0x200/0x41c [ 229.294612][ T6364] gfs2_fill_super+0xddc/0x1a18 [ 229.295393][ T6364] get_tree_bdev+0x358/0x544 [ 229.296106][ T6364] gfs2_get_tree+0x54/0x1b4 [ 229.296768][ T6364] vfs_get_tree+0x90/0x274 [ 229.297480][ T6364] do_new_mount+0x228/0x810 [ 229.298205][ T6364] path_mount+0x5bc/0x1008 [ 229.298893][ T6364] __arm64_sys_mount+0x514/0x5f0 [ 229.299739][ T6364] invoke_syscall+0x98/0x2b0 [ 229.300530][ T6364] el0_svc_common+0x138/0x258 [ 229.301304][ T6364] do_el0_svc+0x58/0x13c [ 229.302036][ T6364] el0_svc+0x78/0x1d0 [ 229.302697][ T6364] el0t_64_sync_handler+0xcc/0xe4 [ 229.303506][ T6364] el0t_64_sync+0x1a0/0x1a4 [ 229.305058][ T6364] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.307291][ T6364] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.439388][ T6366] loop1: detected capacity change from 0 to 32768 [ 229.446584][ T6366] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.447818][ T6366] CPU: 1 PID: 6366 Comm: syz.1.696 Not tainted syzkaller #0 [ 229.448988][ T6366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.450560][ T6366] Call trace: [ 229.451088][ T6366] dump_backtrace+0x0/0x458 [ 229.451863][ T6366] show_stack+0x2c/0x3c [ 229.452535][ T6366] __dump_stack+0x30/0x40 [ 229.453265][ T6366] dump_stack_lvl+0xf4/0x15c [ 229.454007][ T6366] dump_stack+0x1c/0x5c [ 229.454616][ T6366] sysfs_create_dir_ns+0x244/0x264 [ 229.455427][ T6366] kobject_add_internal+0x5ac/0xc3c [ 229.456302][ T6366] kobject_init_and_add+0x124/0x190 [ 229.457161][ T6366] gfs2_sys_fs_add+0x200/0x41c [ 229.457937][ T6366] gfs2_fill_super+0xddc/0x1a18 [ 229.458737][ T6366] get_tree_bdev+0x358/0x544 [ 229.459485][ T6366] gfs2_get_tree+0x54/0x1b4 [ 229.460235][ T6366] vfs_get_tree+0x90/0x274 [ 229.460949][ T6366] do_new_mount+0x228/0x810 [ 229.461657][ T6366] path_mount+0x5bc/0x1008 [ 229.462427][ T6366] __arm64_sys_mount+0x514/0x5f0 [ 229.463248][ T6366] invoke_syscall+0x98/0x2b0 [ 229.464015][ T6366] el0_svc_common+0x138/0x258 [ 229.464832][ T6366] do_el0_svc+0x58/0x13c [ 229.465562][ T6366] el0_svc+0x78/0x1d0 [ 229.466201][ T6366] el0t_64_sync_handler+0xcc/0xe4 [ 229.467101][ T6366] el0t_64_sync+0x1a0/0x1a4 [ 229.469434][ T6366] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.471627][ T6366] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.604625][ T6368] loop1: detected capacity change from 0 to 32768 [ 229.613951][ T6368] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.615199][ T6368] CPU: 0 PID: 6368 Comm: syz.1.697 Not tainted syzkaller #0 [ 229.616360][ T6368] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.617937][ T6368] Call trace: [ 229.618475][ T6368] dump_backtrace+0x0/0x458 [ 229.619174][ T6368] show_stack+0x2c/0x3c [ 229.619835][ T6368] __dump_stack+0x30/0x40 [ 229.620584][ T6368] dump_stack_lvl+0xf4/0x15c [ 229.621396][ T6368] dump_stack+0x1c/0x5c [ 229.622034][ T6368] sysfs_create_dir_ns+0x244/0x264 [ 229.622863][ T6368] kobject_add_internal+0x5ac/0xc3c [ 229.623771][ T6368] kobject_init_and_add+0x124/0x190 [ 229.624665][ T6368] gfs2_sys_fs_add+0x200/0x41c [ 229.625480][ T6368] gfs2_fill_super+0xddc/0x1a18 [ 229.626315][ T6368] get_tree_bdev+0x358/0x544 [ 229.627030][ T6368] gfs2_get_tree+0x54/0x1b4 [ 229.627733][ T6368] vfs_get_tree+0x90/0x274 [ 229.628439][ T6368] do_new_mount+0x228/0x810 [ 229.629249][ T6368] path_mount+0x5bc/0x1008 [ 229.630009][ T6368] __arm64_sys_mount+0x514/0x5f0 [ 229.630911][ T6368] invoke_syscall+0x98/0x2b0 [ 229.631694][ T6368] el0_svc_common+0x138/0x258 [ 229.632473][ T6368] do_el0_svc+0x58/0x13c [ 229.633189][ T6368] el0_svc+0x78/0x1d0 [ 229.633909][ T6368] el0t_64_sync_handler+0xcc/0xe4 [ 229.634722][ T6368] el0t_64_sync+0x1a0/0x1a4 [ 229.637108][ T6368] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.639268][ T6368] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.766942][ T6370] loop1: detected capacity change from 0 to 32768 [ 229.853989][ T6370] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.855253][ T6370] CPU: 0 PID: 6370 Comm: syz.1.698 Not tainted syzkaller #0 [ 229.856496][ T6370] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.858056][ T6370] Call trace: [ 229.858581][ T6370] dump_backtrace+0x0/0x458 [ 229.859311][ T6370] show_stack+0x2c/0x3c [ 229.860005][ T6370] __dump_stack+0x30/0x40 [ 229.860699][ T6370] dump_stack_lvl+0xf4/0x15c [ 229.861432][ T6370] dump_stack+0x1c/0x5c [ 229.862088][ T6370] sysfs_create_dir_ns+0x244/0x264 [ 229.862976][ T6370] kobject_add_internal+0x5ac/0xc3c [ 229.863786][ T6370] kobject_init_and_add+0x124/0x190 [ 229.864680][ T6370] gfs2_sys_fs_add+0x200/0x41c [ 229.865477][ T6370] gfs2_fill_super+0xddc/0x1a18 [ 229.866312][ T6370] get_tree_bdev+0x358/0x544 [ 229.867082][ T6370] gfs2_get_tree+0x54/0x1b4 [ 229.867859][ T6370] vfs_get_tree+0x90/0x274 [ 229.868564][ T6370] do_new_mount+0x228/0x810 [ 229.869257][ T6370] path_mount+0x5bc/0x1008 [ 229.869972][ T6370] __arm64_sys_mount+0x514/0x5f0 [ 229.870806][ T6370] invoke_syscall+0x98/0x2b0 [ 229.871576][ T6370] el0_svc_common+0x138/0x258 [ 229.872286][ T6370] do_el0_svc+0x58/0x13c [ 229.872963][ T6370] el0_svc+0x78/0x1d0 [ 229.873609][ T6370] el0t_64_sync_handler+0xcc/0xe4 [ 229.874452][ T6370] el0t_64_sync+0x1a0/0x1a4 [ 229.876153][ T6370] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.878424][ T6370] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.010969][ T6372] loop1: detected capacity change from 0 to 32768 [ 230.018292][ T6372] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.019644][ T6372] CPU: 0 PID: 6372 Comm: syz.1.699 Not tainted syzkaller #0 [ 230.020852][ T6372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.022510][ T6372] Call trace: [ 230.023028][ T6372] dump_backtrace+0x0/0x458 [ 230.023726][ T6372] show_stack+0x2c/0x3c [ 230.024483][ T6372] __dump_stack+0x30/0x40 [ 230.025263][ T6372] dump_stack_lvl+0xf4/0x15c [ 230.025999][ T6372] dump_stack+0x1c/0x5c [ 230.026706][ T6372] sysfs_create_dir_ns+0x244/0x264 [ 230.027559][ T6372] kobject_add_internal+0x5ac/0xc3c [ 230.028439][ T6372] kobject_init_and_add+0x124/0x190 [ 230.029271][ T6372] gfs2_sys_fs_add+0x200/0x41c [ 230.030079][ T6372] gfs2_fill_super+0xddc/0x1a18 [ 230.030852][ T6372] get_tree_bdev+0x358/0x544 [ 230.031635][ T6372] gfs2_get_tree+0x54/0x1b4 [ 230.032407][ T6372] vfs_get_tree+0x90/0x274 [ 230.033228][ T6372] do_new_mount+0x228/0x810 [ 230.033995][ T6372] path_mount+0x5bc/0x1008 [ 230.034727][ T6372] __arm64_sys_mount+0x514/0x5f0 [ 230.035567][ T6372] invoke_syscall+0x98/0x2b0 [ 230.036269][ T6372] el0_svc_common+0x138/0x258 [ 230.037022][ T6372] do_el0_svc+0x58/0x13c [ 230.037683][ T6372] el0_svc+0x78/0x1d0 [ 230.038254][ T6372] el0t_64_sync_handler+0xcc/0xe4 [ 230.039046][ T6372] el0t_64_sync+0x1a0/0x1a4 [ 230.040067][ T6372] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.042222][ T6372] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.171627][ T6374] loop1: detected capacity change from 0 to 32768 [ 230.253820][ T6374] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.255139][ T6374] CPU: 0 PID: 6374 Comm: syz.1.700 Not tainted syzkaller #0 [ 230.256350][ T6374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.258074][ T6374] Call trace: [ 230.258603][ T6374] dump_backtrace+0x0/0x458 [ 230.259362][ T6374] show_stack+0x2c/0x3c [ 230.260061][ T6374] __dump_stack+0x30/0x40 [ 230.260792][ T6374] dump_stack_lvl+0xf4/0x15c [ 230.261577][ T6374] dump_stack+0x1c/0x5c [ 230.262253][ T6374] sysfs_create_dir_ns+0x244/0x264 [ 230.263137][ T6374] kobject_add_internal+0x5ac/0xc3c [ 230.264035][ T6374] kobject_init_and_add+0x124/0x190 [ 230.264879][ T6374] gfs2_sys_fs_add+0x200/0x41c [ 230.265652][ T6374] gfs2_fill_super+0xddc/0x1a18 [ 230.266431][ T6374] get_tree_bdev+0x358/0x544 [ 230.267232][ T6374] gfs2_get_tree+0x54/0x1b4 [ 230.268018][ T6374] vfs_get_tree+0x90/0x274 [ 230.268820][ T6374] do_new_mount+0x228/0x810 [ 230.269597][ T6374] path_mount+0x5bc/0x1008 [ 230.270322][ T6374] __arm64_sys_mount+0x514/0x5f0 [ 230.271147][ T6374] invoke_syscall+0x98/0x2b0 [ 230.271881][ T6374] el0_svc_common+0x138/0x258 [ 230.272672][ T6374] do_el0_svc+0x58/0x13c [ 230.273352][ T6374] el0_svc+0x78/0x1d0 [ 230.274001][ T6374] el0t_64_sync_handler+0xcc/0xe4 [ 230.274833][ T6374] el0t_64_sync+0x1a0/0x1a4 [ 230.277036][ T6374] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.279259][ T6374] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.453017][ T6376] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.454250][ T6376] CPU: 0 PID: 6376 Comm: syz.1.701 Not tainted syzkaller #0 [ 230.455438][ T6376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.457052][ T6376] Call trace: [ 230.457560][ T6376] dump_backtrace+0x0/0x458 [ 230.458287][ T6376] show_stack+0x2c/0x3c [ 230.458967][ T6376] __dump_stack+0x30/0x40 [ 230.459733][ T6376] dump_stack_lvl+0xf4/0x15c [ 230.460473][ T6376] dump_stack+0x1c/0x5c [ 230.461181][ T6376] sysfs_create_dir_ns+0x244/0x264 [ 230.462018][ T6376] kobject_add_internal+0x5ac/0xc3c [ 230.462882][ T6376] kobject_init_and_add+0x124/0x190 [ 230.463730][ T6376] gfs2_sys_fs_add+0x200/0x41c [ 230.464560][ T6376] gfs2_fill_super+0xddc/0x1a18 [ 230.465334][ T6376] get_tree_bdev+0x358/0x544 [ 230.466108][ T6376] gfs2_get_tree+0x54/0x1b4 [ 230.466857][ T6376] vfs_get_tree+0x90/0x274 [ 230.467580][ T6376] do_new_mount+0x228/0x810 [ 230.468289][ T6376] path_mount+0x5bc/0x1008 [ 230.468984][ T6376] __arm64_sys_mount+0x514/0x5f0 [ 230.469755][ T6376] invoke_syscall+0x98/0x2b0 [ 230.470597][ T6376] el0_svc_common+0x138/0x258 [ 230.471347][ T6376] do_el0_svc+0x58/0x13c [ 230.472096][ T6376] el0_svc+0x78/0x1d0 [ 230.472720][ T6376] el0t_64_sync_handler+0xcc/0xe4 [ 230.473554][ T6376] el0t_64_sync+0x1a0/0x1a4 [ 230.475657][ T6376] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.477768][ T6376] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.616408][ T6378] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.617614][ T6378] CPU: 0 PID: 6378 Comm: syz.1.702 Not tainted syzkaller #0 [ 230.618796][ T6378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.620466][ T6378] Call trace: [ 230.620985][ T6378] dump_backtrace+0x0/0x458 [ 230.621720][ T6378] show_stack+0x2c/0x3c [ 230.622412][ T6378] __dump_stack+0x30/0x40 [ 230.623060][ T6378] dump_stack_lvl+0xf4/0x15c [ 230.623784][ T6378] dump_stack+0x1c/0x5c [ 230.624472][ T6378] sysfs_create_dir_ns+0x244/0x264 [ 230.625301][ T6378] kobject_add_internal+0x5ac/0xc3c [ 230.626101][ T6378] kobject_init_and_add+0x124/0x190 [ 230.626970][ T6378] gfs2_sys_fs_add+0x200/0x41c [ 230.627734][ T6378] gfs2_fill_super+0xddc/0x1a18 [ 230.628515][ T6378] get_tree_bdev+0x358/0x544 [ 230.629265][ T6378] gfs2_get_tree+0x54/0x1b4 [ 230.629960][ T6378] vfs_get_tree+0x90/0x274 [ 230.630664][ T6378] do_new_mount+0x228/0x810 [ 230.631413][ T6378] path_mount+0x5bc/0x1008 [ 230.632129][ T6378] __arm64_sys_mount+0x514/0x5f0 [ 230.632908][ T6378] invoke_syscall+0x98/0x2b0 [ 230.633613][ T6378] el0_svc_common+0x138/0x258 [ 230.634405][ T6378] do_el0_svc+0x58/0x13c [ 230.635081][ T6378] el0_svc+0x78/0x1d0 [ 230.635700][ T6378] el0t_64_sync_handler+0xcc/0xe4 [ 230.636551][ T6378] el0t_64_sync+0x1a0/0x1a4 [ 230.638907][ T6378] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.640954][ T6378] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.827411][ T6380] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.828905][ T6380] CPU: 1 PID: 6380 Comm: syz.1.703 Not tainted syzkaller #0 [ 230.830048][ T6380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.831554][ T6380] Call trace: [ 230.832044][ T6380] dump_backtrace+0x0/0x458 [ 230.832779][ T6380] show_stack+0x2c/0x3c [ 230.833396][ T6380] __dump_stack+0x30/0x40 [ 230.834054][ T6380] dump_stack_lvl+0xf4/0x15c [ 230.834763][ T6380] dump_stack+0x1c/0x5c [ 230.835341][ T6380] sysfs_create_dir_ns+0x244/0x264 [ 230.836086][ T6380] kobject_add_internal+0x5ac/0xc3c [ 230.836936][ T6380] kobject_init_and_add+0x124/0x190 [ 230.837836][ T6380] gfs2_sys_fs_add+0x200/0x41c [ 230.838597][ T6380] gfs2_fill_super+0xddc/0x1a18 [ 230.839412][ T6380] get_tree_bdev+0x358/0x544 [ 230.840135][ T6380] gfs2_get_tree+0x54/0x1b4 [ 230.840863][ T6380] vfs_get_tree+0x90/0x274 [ 230.841620][ T6380] do_new_mount+0x228/0x810 [ 230.842403][ T6380] path_mount+0x5bc/0x1008 [ 230.843136][ T6380] __arm64_sys_mount+0x514/0x5f0 [ 230.843960][ T6380] invoke_syscall+0x98/0x2b0 [ 230.844680][ T6380] el0_svc_common+0x138/0x258 [ 230.845482][ T6380] do_el0_svc+0x58/0x13c [ 230.846123][ T6380] el0_svc+0x78/0x1d0 [ 230.846725][ T6380] el0t_64_sync_handler+0xcc/0xe4 [ 230.847508][ T6380] el0t_64_sync+0x1a0/0x1a4 [ 230.848401][ T6380] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.850435][ T6380] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.993392][ T6382] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.994697][ T6382] CPU: 0 PID: 6382 Comm: syz.1.704 Not tainted syzkaller #0 [ 230.995878][ T6382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.997588][ T6382] Call trace: [ 230.998123][ T6382] dump_backtrace+0x0/0x458 [ 230.998876][ T6382] show_stack+0x2c/0x3c [ 230.999574][ T6382] __dump_stack+0x30/0x40 [ 231.000377][ T6382] dump_stack_lvl+0xf4/0x15c [ 231.001078][ T6382] dump_stack+0x1c/0x5c [ 231.001751][ T6382] sysfs_create_dir_ns+0x244/0x264 [ 231.002618][ T6382] kobject_add_internal+0x5ac/0xc3c [ 231.003475][ T6382] kobject_init_and_add+0x124/0x190 [ 231.004284][ T6382] gfs2_sys_fs_add+0x200/0x41c [ 231.005038][ T6382] gfs2_fill_super+0xddc/0x1a18 [ 231.005817][ T6382] get_tree_bdev+0x358/0x544 [ 231.006580][ T6382] gfs2_get_tree+0x54/0x1b4 [ 231.007309][ T6382] vfs_get_tree+0x90/0x274 [ 231.008051][ T6382] do_new_mount+0x228/0x810 [ 231.008774][ T6382] path_mount+0x5bc/0x1008 [ 231.009471][ T6382] __arm64_sys_mount+0x514/0x5f0 [ 231.010317][ T6382] invoke_syscall+0x98/0x2b0 [ 231.011162][ T6382] el0_svc_common+0x138/0x258 [ 231.011930][ T6382] do_el0_svc+0x58/0x13c [ 231.012662][ T6382] el0_svc+0x78/0x1d0 [ 231.013333][ T6382] el0t_64_sync_handler+0xcc/0xe4 [ 231.014238][ T6382] el0t_64_sync+0x1a0/0x1a4 [ 231.015550][ T6382] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.017760][ T6382] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.155368][ T6384] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.156538][ T6384] CPU: 1 PID: 6384 Comm: syz.1.705 Not tainted syzkaller #0 [ 231.157644][ T6384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.159310][ T6384] Call trace: [ 231.159885][ T6384] dump_backtrace+0x0/0x458 [ 231.160636][ T6384] show_stack+0x2c/0x3c [ 231.161234][ T6384] __dump_stack+0x30/0x40 [ 231.161900][ T6384] dump_stack_lvl+0xf4/0x15c [ 231.162638][ T6384] dump_stack+0x1c/0x5c [ 231.163276][ T6384] sysfs_create_dir_ns+0x244/0x264 [ 231.164145][ T6384] kobject_add_internal+0x5ac/0xc3c [ 231.164954][ T6384] kobject_init_and_add+0x124/0x190 [ 231.165823][ T6384] gfs2_sys_fs_add+0x200/0x41c [ 231.166646][ T6384] gfs2_fill_super+0xddc/0x1a18 [ 231.167418][ T6384] get_tree_bdev+0x358/0x544 [ 231.168198][ T6384] gfs2_get_tree+0x54/0x1b4 [ 231.168979][ T6384] vfs_get_tree+0x90/0x274 [ 231.169745][ T6384] do_new_mount+0x228/0x810 [ 231.170551][ T6384] path_mount+0x5bc/0x1008 [ 231.171232][ T6384] __arm64_sys_mount+0x514/0x5f0 [ 231.171995][ T6384] invoke_syscall+0x98/0x2b0 [ 231.172739][ T6384] el0_svc_common+0x138/0x258 [ 231.173455][ T6384] do_el0_svc+0x58/0x13c [ 231.174162][ T6384] el0_svc+0x78/0x1d0 [ 231.174819][ T6384] el0t_64_sync_handler+0xcc/0xe4 [ 231.175613][ T6384] el0t_64_sync+0x1a0/0x1a4 [ 231.177706][ T6384] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.179954][ T6384] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.351126][ T6386] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.352313][ T6386] CPU: 0 PID: 6386 Comm: syz.1.706 Not tainted syzkaller #0 [ 231.353549][ T6386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.355060][ T6386] Call trace: [ 231.355584][ T6386] dump_backtrace+0x0/0x458 [ 231.356251][ T6386] show_stack+0x2c/0x3c [ 231.356870][ T6386] __dump_stack+0x30/0x40 [ 231.357540][ T6386] dump_stack_lvl+0xf4/0x15c [ 231.358255][ T6386] dump_stack+0x1c/0x5c [ 231.358932][ T6386] sysfs_create_dir_ns+0x244/0x264 [ 231.359770][ T6386] kobject_add_internal+0x5ac/0xc3c [ 231.360587][ T6386] kobject_init_and_add+0x124/0x190 [ 231.361425][ T6386] gfs2_sys_fs_add+0x200/0x41c [ 231.362236][ T6386] gfs2_fill_super+0xddc/0x1a18 [ 231.363043][ T6386] get_tree_bdev+0x358/0x544 [ 231.363799][ T6386] gfs2_get_tree+0x54/0x1b4 [ 231.364515][ T6386] vfs_get_tree+0x90/0x274 [ 231.365230][ T6386] do_new_mount+0x228/0x810 [ 231.365943][ T6386] path_mount+0x5bc/0x1008 [ 231.366699][ T6386] __arm64_sys_mount+0x514/0x5f0 [ 231.367561][ T6386] invoke_syscall+0x98/0x2b0 [ 231.368343][ T6386] el0_svc_common+0x138/0x258 [ 231.369142][ T6386] do_el0_svc+0x58/0x13c [ 231.369933][ T6386] el0_svc+0x78/0x1d0 [ 231.370604][ T6386] el0t_64_sync_handler+0xcc/0xe4 [ 231.371450][ T6386] el0t_64_sync+0x1a0/0x1a4 [ 231.372237][ T6386] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.374231][ T6386] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.603049][ T6388] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.604341][ T6388] CPU: 0 PID: 6388 Comm: syz.1.707 Not tainted syzkaller #0 [ 231.605497][ T6388] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.606935][ T6388] Call trace: [ 231.607433][ T6388] dump_backtrace+0x0/0x458 [ 231.608231][ T6388] show_stack+0x2c/0x3c [ 231.608957][ T6388] __dump_stack+0x30/0x40 [ 231.609668][ T6388] dump_stack_lvl+0xf4/0x15c [ 231.610428][ T6388] dump_stack+0x1c/0x5c [ 231.611113][ T6388] sysfs_create_dir_ns+0x244/0x264 [ 231.611913][ T6388] kobject_add_internal+0x5ac/0xc3c [ 231.612743][ T6388] kobject_init_and_add+0x124/0x190 [ 231.613652][ T6388] gfs2_sys_fs_add+0x200/0x41c [ 231.614455][ T6388] gfs2_fill_super+0xddc/0x1a18 [ 231.615252][ T6388] get_tree_bdev+0x358/0x544 [ 231.616019][ T6388] gfs2_get_tree+0x54/0x1b4 [ 231.616723][ T6388] vfs_get_tree+0x90/0x274 [ 231.617450][ T6388] do_new_mount+0x228/0x810 [ 231.618211][ T6388] path_mount+0x5bc/0x1008 [ 231.618905][ T6388] __arm64_sys_mount+0x514/0x5f0 [ 231.619680][ T6388] invoke_syscall+0x98/0x2b0 [ 231.620431][ T6388] el0_svc_common+0x138/0x258 [ 231.621229][ T6388] do_el0_svc+0x58/0x13c [ 231.621950][ T6388] el0_svc+0x78/0x1d0 [ 231.622595][ T6388] el0t_64_sync_handler+0xcc/0xe4 [ 231.623463][ T6388] el0t_64_sync+0x1a0/0x1a4 [ 231.624367][ T6388] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.626271][ T6388] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.832479][ T6390] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.833711][ T6390] CPU: 1 PID: 6390 Comm: syz.1.708 Not tainted syzkaller #0 [ 231.834803][ T6390] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.836457][ T6390] Call trace: [ 231.837048][ T6390] dump_backtrace+0x0/0x458 [ 231.837804][ T6390] show_stack+0x2c/0x3c [ 231.838519][ T6390] __dump_stack+0x30/0x40 [ 231.839220][ T6390] dump_stack_lvl+0xf4/0x15c [ 231.839945][ T6390] dump_stack+0x1c/0x5c [ 231.840605][ T6390] sysfs_create_dir_ns+0x244/0x264 [ 231.841470][ T6390] kobject_add_internal+0x5ac/0xc3c [ 231.842327][ T6390] kobject_init_and_add+0x124/0x190 [ 231.843206][ T6390] gfs2_sys_fs_add+0x200/0x41c [ 231.843990][ T6390] gfs2_fill_super+0xddc/0x1a18 [ 231.844749][ T6390] get_tree_bdev+0x358/0x544 [ 231.845532][ T6390] gfs2_get_tree+0x54/0x1b4 [ 231.846259][ T6390] vfs_get_tree+0x90/0x274 [ 231.847008][ T6390] do_new_mount+0x228/0x810 [ 231.847752][ T6390] path_mount+0x5bc/0x1008 [ 231.848484][ T6390] __arm64_sys_mount+0x514/0x5f0 [ 231.849277][ T6390] invoke_syscall+0x98/0x2b0 [ 231.849993][ T6390] el0_svc_common+0x138/0x258 [ 231.850702][ T6390] do_el0_svc+0x58/0x13c [ 231.851388][ T6390] el0_svc+0x78/0x1d0 [ 231.852094][ T6390] el0t_64_sync_handler+0xcc/0xe4 [ 231.852937][ T6390] el0t_64_sync+0x1a0/0x1a4 [ 231.855406][ T6390] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.857461][ T6390] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.044215][ T6392] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.045430][ T6392] CPU: 1 PID: 6392 Comm: syz.1.709 Not tainted syzkaller #0 [ 232.046691][ T6392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.048404][ T6392] Call trace: [ 232.048925][ T6392] dump_backtrace+0x0/0x458 [ 232.049709][ T6392] show_stack+0x2c/0x3c [ 232.050439][ T6392] __dump_stack+0x30/0x40 [ 232.051131][ T6392] dump_stack_lvl+0xf4/0x15c [ 232.051927][ T6392] dump_stack+0x1c/0x5c [ 232.052627][ T6392] sysfs_create_dir_ns+0x244/0x264 [ 232.053494][ T6392] kobject_add_internal+0x5ac/0xc3c [ 232.054346][ T6392] kobject_init_and_add+0x124/0x190 [ 232.055213][ T6392] gfs2_sys_fs_add+0x200/0x41c [ 232.055971][ T6392] gfs2_fill_super+0xddc/0x1a18 [ 232.056793][ T6392] get_tree_bdev+0x358/0x544 [ 232.057542][ T6392] gfs2_get_tree+0x54/0x1b4 [ 232.058251][ T6392] vfs_get_tree+0x90/0x274 [ 232.058945][ T6392] do_new_mount+0x228/0x810 [ 232.059697][ T6392] path_mount+0x5bc/0x1008 [ 232.060398][ T6392] __arm64_sys_mount+0x514/0x5f0 [ 232.061270][ T6392] invoke_syscall+0x98/0x2b0 [ 232.062076][ T6392] el0_svc_common+0x138/0x258 [ 232.062832][ T6392] do_el0_svc+0x58/0x13c [ 232.063510][ T6392] el0_svc+0x78/0x1d0 [ 232.064149][ T6392] el0t_64_sync_handler+0xcc/0xe4 [ 232.064983][ T6392] el0t_64_sync+0x1a0/0x1a4 [ 232.067438][ T6392] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.069732][ T6392] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.272272][ T6394] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.273546][ T6394] CPU: 0 PID: 6394 Comm: syz.1.710 Not tainted syzkaller #0 [ 232.274753][ T6394] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.276451][ T6394] Call trace: [ 232.276963][ T6394] dump_backtrace+0x0/0x458 [ 232.277658][ T6394] show_stack+0x2c/0x3c [ 232.278349][ T6394] __dump_stack+0x30/0x40 [ 232.279083][ T6394] dump_stack_lvl+0xf4/0x15c [ 232.279876][ T6394] dump_stack+0x1c/0x5c [ 232.280522][ T6394] sysfs_create_dir_ns+0x244/0x264 [ 232.281377][ T6394] kobject_add_internal+0x5ac/0xc3c [ 232.282248][ T6394] kobject_init_and_add+0x124/0x190 [ 232.283063][ T6394] gfs2_sys_fs_add+0x200/0x41c [ 232.283872][ T6394] gfs2_fill_super+0xddc/0x1a18 [ 232.284680][ T6394] get_tree_bdev+0x358/0x544 [ 232.285426][ T6394] gfs2_get_tree+0x54/0x1b4 [ 232.286184][ T6394] vfs_get_tree+0x90/0x274 [ 232.286873][ T6394] do_new_mount+0x228/0x810 [ 232.287676][ T6394] path_mount+0x5bc/0x1008 [ 232.288498][ T6394] __arm64_sys_mount+0x514/0x5f0 [ 232.289322][ T6394] invoke_syscall+0x98/0x2b0 [ 232.290083][ T6394] el0_svc_common+0x138/0x258 [ 232.290854][ T6394] do_el0_svc+0x58/0x13c [ 232.291532][ T6394] el0_svc+0x78/0x1d0 [ 232.292181][ T6394] el0t_64_sync_handler+0xcc/0xe4 [ 232.293067][ T6394] el0t_64_sync+0x1a0/0x1a4 [ 232.293964][ T6394] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.295930][ T6394] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.434533][ T6396] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.436010][ T6396] CPU: 1 PID: 6396 Comm: syz.1.711 Not tainted syzkaller #0 [ 232.437125][ T6396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.438724][ T6396] Call trace: [ 232.439237][ T6396] dump_backtrace+0x0/0x458 [ 232.439991][ T6396] show_stack+0x2c/0x3c [ 232.440682][ T6396] __dump_stack+0x30/0x40 [ 232.441405][ T6396] dump_stack_lvl+0xf4/0x15c [ 232.442101][ T6396] dump_stack+0x1c/0x5c [ 232.442802][ T6396] sysfs_create_dir_ns+0x244/0x264 [ 232.443667][ T6396] kobject_add_internal+0x5ac/0xc3c [ 232.444534][ T6396] kobject_init_and_add+0x124/0x190 [ 232.445426][ T6396] gfs2_sys_fs_add+0x200/0x41c [ 232.446176][ T6396] gfs2_fill_super+0xddc/0x1a18 [ 232.446953][ T6396] get_tree_bdev+0x358/0x544 [ 232.447763][ T6396] gfs2_get_tree+0x54/0x1b4 [ 232.448562][ T6396] vfs_get_tree+0x90/0x274 [ 232.449302][ T6396] do_new_mount+0x228/0x810 [ 232.450031][ T6396] path_mount+0x5bc/0x1008 [ 232.450771][ T6396] __arm64_sys_mount+0x514/0x5f0 [ 232.451671][ T6396] invoke_syscall+0x98/0x2b0 [ 232.452414][ T6396] el0_svc_common+0x138/0x258 [ 232.453141][ T6396] do_el0_svc+0x58/0x13c [ 232.453801][ T6396] el0_svc+0x78/0x1d0 [ 232.454493][ T6396] el0t_64_sync_handler+0xcc/0xe4 [ 232.455401][ T6396] el0t_64_sync+0x1a0/0x1a4 [ 232.457530][ T6396] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.459740][ T6396] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.655511][ T6398] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.656734][ T6398] CPU: 1 PID: 6398 Comm: syz.1.712 Not tainted syzkaller #0 [ 232.657844][ T6398] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.659633][ T6398] Call trace: [ 232.660145][ T6398] dump_backtrace+0x0/0x458 [ 232.660865][ T6398] show_stack+0x2c/0x3c [ 232.661528][ T6398] __dump_stack+0x30/0x40 [ 232.662193][ T6398] dump_stack_lvl+0xf4/0x15c [ 232.662912][ T6398] dump_stack+0x1c/0x5c [ 232.663566][ T6398] sysfs_create_dir_ns+0x244/0x264 [ 232.664405][ T6398] kobject_add_internal+0x5ac/0xc3c [ 232.665192][ T6398] kobject_init_and_add+0x124/0x190 [ 232.666053][ T6398] gfs2_sys_fs_add+0x200/0x41c [ 232.666769][ T6398] gfs2_fill_super+0xddc/0x1a18 [ 232.667550][ T6398] get_tree_bdev+0x358/0x544 [ 232.668275][ T6398] gfs2_get_tree+0x54/0x1b4 [ 232.668982][ T6398] vfs_get_tree+0x90/0x274 [ 232.669628][ T6398] do_new_mount+0x228/0x810 [ 232.670325][ T6398] path_mount+0x5bc/0x1008 [ 232.670941][ T6398] __arm64_sys_mount+0x514/0x5f0 [ 232.671687][ T6398] invoke_syscall+0x98/0x2b0 [ 232.672412][ T6398] el0_svc_common+0x138/0x258 [ 232.673195][ T6398] do_el0_svc+0x58/0x13c [ 232.673875][ T6398] el0_svc+0x78/0x1d0 [ 232.674618][ T6398] el0t_64_sync_handler+0xcc/0xe4 [ 232.675488][ T6398] el0t_64_sync+0x1a0/0x1a4 [ 232.677872][ T6398] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.679831][ T6398] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.815720][ T6400] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.816968][ T6400] CPU: 0 PID: 6400 Comm: syz.1.713 Not tainted syzkaller #0 [ 232.818140][ T6400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.819714][ T6400] Call trace: [ 232.820245][ T6400] dump_backtrace+0x0/0x458 [ 232.821037][ T6400] show_stack+0x2c/0x3c [ 232.821766][ T6400] __dump_stack+0x30/0x40 [ 232.822418][ T6400] dump_stack_lvl+0xf4/0x15c [ 232.823144][ T6400] dump_stack+0x1c/0x5c [ 232.823810][ T6400] sysfs_create_dir_ns+0x244/0x264 [ 232.824669][ T6400] kobject_add_internal+0x5ac/0xc3c [ 232.825520][ T6400] kobject_init_and_add+0x124/0x190 [ 232.826400][ T6400] gfs2_sys_fs_add+0x200/0x41c [ 232.827124][ T6400] gfs2_fill_super+0xddc/0x1a18 [ 232.827947][ T6400] get_tree_bdev+0x358/0x544 [ 232.828760][ T6400] gfs2_get_tree+0x54/0x1b4 [ 232.829515][ T6400] vfs_get_tree+0x90/0x274 [ 232.830246][ T6400] do_new_mount+0x228/0x810 [ 232.830991][ T6400] path_mount+0x5bc/0x1008 [ 232.831687][ T6400] __arm64_sys_mount+0x514/0x5f0 [ 232.832524][ T6400] invoke_syscall+0x98/0x2b0 [ 232.833315][ T6400] el0_svc_common+0x138/0x258 [ 232.834095][ T6400] do_el0_svc+0x58/0x13c [ 232.834791][ T6400] el0_svc+0x78/0x1d0 [ 232.835457][ T6400] el0t_64_sync_handler+0xcc/0xe4 [ 232.836296][ T6400] el0t_64_sync+0x1a0/0x1a4 [ 232.837667][ T6400] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.839873][ T6400] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.999186][ T6402] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.000489][ T6402] CPU: 1 PID: 6402 Comm: syz.1.714 Not tainted syzkaller #0 [ 233.001583][ T6402] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.003036][ T6402] Call trace: [ 233.003519][ T6402] dump_backtrace+0x0/0x458 [ 233.004356][ T6402] show_stack+0x2c/0x3c [ 233.005033][ T6402] __dump_stack+0x30/0x40 [ 233.005698][ T6402] dump_stack_lvl+0xf4/0x15c [ 233.006462][ T6402] dump_stack+0x1c/0x5c [ 233.007142][ T6402] sysfs_create_dir_ns+0x244/0x264 [ 233.008019][ T6402] kobject_add_internal+0x5ac/0xc3c [ 233.008853][ T6402] kobject_init_and_add+0x124/0x190 [ 233.009626][ T6402] gfs2_sys_fs_add+0x200/0x41c [ 233.010355][ T6402] gfs2_fill_super+0xddc/0x1a18 [ 233.011155][ T6402] get_tree_bdev+0x358/0x544 [ 233.011983][ T6402] gfs2_get_tree+0x54/0x1b4 [ 233.012753][ T6402] vfs_get_tree+0x90/0x274 [ 233.013480][ T6402] do_new_mount+0x228/0x810 [ 233.014214][ T6402] path_mount+0x5bc/0x1008 [ 233.014922][ T6402] __arm64_sys_mount+0x514/0x5f0 [ 233.015765][ T6402] invoke_syscall+0x98/0x2b0 [ 233.016502][ T6402] el0_svc_common+0x138/0x258 [ 233.017262][ T6402] do_el0_svc+0x58/0x13c [ 233.017952][ T6402] el0_svc+0x78/0x1d0 [ 233.018587][ T6402] el0t_64_sync_handler+0xcc/0xe4 [ 233.019488][ T6402] el0t_64_sync+0x1a0/0x1a4 [ 233.020549][ T6402] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.022743][ T6402] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.162154][ T6404] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.163468][ T6404] CPU: 1 PID: 6404 Comm: syz.1.715 Not tainted syzkaller #0 [ 233.164548][ T6404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.166115][ T6404] Call trace: [ 233.166670][ T6404] dump_backtrace+0x0/0x458 [ 233.167360][ T6404] show_stack+0x2c/0x3c [ 233.168032][ T6404] __dump_stack+0x30/0x40 [ 233.168792][ T6404] dump_stack_lvl+0xf4/0x15c [ 233.169554][ T6404] dump_stack+0x1c/0x5c [ 233.170207][ T6404] sysfs_create_dir_ns+0x244/0x264 [ 233.171061][ T6404] kobject_add_internal+0x5ac/0xc3c [ 233.171916][ T6404] kobject_init_and_add+0x124/0x190 [ 233.172769][ T6404] gfs2_sys_fs_add+0x200/0x41c [ 233.173536][ T6404] gfs2_fill_super+0xddc/0x1a18 [ 233.174364][ T6404] get_tree_bdev+0x358/0x544 [ 233.175121][ T6404] gfs2_get_tree+0x54/0x1b4 [ 233.175822][ T6404] vfs_get_tree+0x90/0x274 [ 233.176496][ T6404] do_new_mount+0x228/0x810 [ 233.177224][ T6404] path_mount+0x5bc/0x1008 [ 233.178022][ T6404] __arm64_sys_mount+0x514/0x5f0 [ 233.178885][ T6404] invoke_syscall+0x98/0x2b0 [ 233.179651][ T6404] el0_svc_common+0x138/0x258 [ 233.180366][ T6404] do_el0_svc+0x58/0x13c [ 233.181005][ T6404] el0_svc+0x78/0x1d0 [ 233.181667][ T6404] el0t_64_sync_handler+0xcc/0xe4 [ 233.182501][ T6404] el0t_64_sync+0x1a0/0x1a4 [ 233.184734][ T6404] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.186793][ T6404] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.326351][ T6406] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.327567][ T6406] CPU: 1 PID: 6406 Comm: syz.1.716 Not tainted syzkaller #0 [ 233.328753][ T6406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.330382][ T6406] Call trace: [ 233.330935][ T6406] dump_backtrace+0x0/0x458 [ 233.331751][ T6406] show_stack+0x2c/0x3c [ 233.332410][ T6406] __dump_stack+0x30/0x40 [ 233.333081][ T6406] dump_stack_lvl+0xf4/0x15c [ 233.333827][ T6406] dump_stack+0x1c/0x5c [ 233.334504][ T6406] sysfs_create_dir_ns+0x244/0x264 [ 233.335355][ T6406] kobject_add_internal+0x5ac/0xc3c [ 233.336233][ T6406] kobject_init_and_add+0x124/0x190 [ 233.337102][ T6406] gfs2_sys_fs_add+0x200/0x41c [ 233.337876][ T6406] gfs2_fill_super+0xddc/0x1a18 [ 233.338608][ T6406] get_tree_bdev+0x358/0x544 [ 233.339324][ T6406] gfs2_get_tree+0x54/0x1b4 [ 233.340028][ T6406] vfs_get_tree+0x90/0x274 [ 233.340843][ T6406] do_new_mount+0x228/0x810 [ 233.341585][ T6406] path_mount+0x5bc/0x1008 [ 233.342345][ T6406] __arm64_sys_mount+0x514/0x5f0 [ 233.343278][ T6406] invoke_syscall+0x98/0x2b0 [ 233.344011][ T6406] el0_svc_common+0x138/0x258 [ 233.344801][ T6406] do_el0_svc+0x58/0x13c [ 233.345463][ T6406] el0_svc+0x78/0x1d0 [ 233.346114][ T6406] el0t_64_sync_handler+0xcc/0xe4 [ 233.346930][ T6406] el0t_64_sync+0x1a0/0x1a4 [ 233.348020][ T6406] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.350067][ T6406] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.457991][ T27] INFO: task syz-executor:4788 blocked for more than 143 seconds. [ 233.459300][ T27] Not tainted syzkaller #0 [ 233.460043][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 233.461346][ T27] task:syz-executor state:D stack: 0 pid: 4788 ppid: 1 flags:0x00000001 [ 233.462750][ T27] Call trace: [ 233.463249][ T27] __switch_to+0x2f4/0x540 [ 233.463938][ T27] __schedule+0xdfc/0x1bc4 [ 233.464602][ T27] schedule+0x11c/0x1c8 [ 233.465229][ T27] schedule_timeout+0x194/0x2f4 [ 233.465944][ T27] gfs2_gl_hash_clear+0x174/0x2cc [ 233.466696][ T27] gfs2_put_super+0x614/0x6b4 [ 233.467374][ T27] generic_shutdown_super+0x130/0x2f0 [ 233.470588][ T27] kill_block_super+0x70/0xdc [ 233.471317][ T27] gfs2_kill_sb+0xc0/0xd4 [ 233.472006][ T27] deactivate_locked_super+0xb8/0x134 [ 233.472816][ T27] deactivate_super+0xf0/0x110 [ 233.473542][ T27] cleanup_mnt+0x3b8/0x46c [ 233.474222][ T27] __cleanup_mnt+0x20/0x30 [ 233.474985][ T27] task_work_run+0x12c/0x1d8 [ 233.475774][ T27] do_notify_resume+0x2450/0x309c [ 233.476628][ T27] el0_svc+0xf0/0x1d0 [ 233.477329][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 233.478888][ T27] el0t_64_sync+0x1a0/0x1a4 [ 233.479602][ T27] [ 233.479602][ T27] Showing all locks held in the system: [ 233.480891][ T27] 1 lock held by khungtaskd/27: [ 233.481676][ T27] #0: ffff800014461360 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 233.483306][ T27] 1 lock held by udevd/3660: [ 233.484098][ T27] #0: ffff0000cb55f918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x120/0x874 [ 233.485723][ T27] 2 locks held by getty/3804: [ 233.486484][ T27] #0: ffff0000d3577098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 233.488668][ T27] #1: ffff80001bc5b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 233.490694][ T27] 1 lock held by syz-executor/4788: [ 233.491581][ T27] #0: ffff0000d9ac40e0 (&type->s_umount_key#52){++++}-{3:3}, at: deactivate_super+0xe8/0x110 [ 233.493226][ T27] 1 lock held by udevd/4975: [ 233.494001][ T27] #0: ffff0000cb55f918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x120/0x874 [ 233.495630][ T27] 2 locks held by syz.1.717/6408: [ 233.496438][ T27] #0: ffff0000cb55f918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xdc/0x6ac [ 233.497955][ T27] #1: ffff0000cb4f7468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x50/0x1fc [ 233.499502][ T27] [ 233.499864][ T27] ============================================= [ 233.499864][ T27] [ 233.501231][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 233.502330][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 233.503468][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.505158][ T27] Call trace: [ 233.505820][ T27] dump_backtrace+0x0/0x458 [ 233.506578][ T27] show_stack+0x2c/0x3c [ 233.507285][ T27] __dump_stack+0x30/0x40 [ 233.508011][ T27] dump_stack_lvl+0xf4/0x15c [ 233.508751][ T27] dump_stack+0x1c/0x5c [ 233.509459][ T27] panic+0x2fc/0x860 [ 233.510114][ T27] hung_task_panic+0x0/0x2c [ 233.510887][ T27] kthread+0x374/0x454 [ 233.511563][ T27] ret_from_fork+0x10/0x20 [ 233.512292][ T27] SMP: stopping secondary CPUs [ 233.513126][ T27] Kernel Offset: disabled [ 233.513786][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 233.514671][ T27] Memory Limit: none [ 233.888233][ T27] Rebooting in 86400 seconds..