3][ T6197] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.502842][ T6199] loop1: detected capacity change from 0 to 32768 [ 217.544811][ T6199] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.546002][ T6199] CPU: 0 PID: 6199 Comm: syz.1.625 Not tainted syzkaller #0 [ 217.547121][ T6199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.548799][ T6199] Call trace: [ 217.549317][ T6199] dump_backtrace+0x0/0x458 [ 217.550064][ T6199] show_stack+0x2c/0x3c [ 217.550750][ T6199] __dump_stack+0x30/0x40 [ 217.551415][ T6199] dump_stack_lvl+0xf4/0x15c [ 217.552130][ T6199] dump_stack+0x1c/0x5c [ 217.552780][ T6199] sysfs_create_dir_ns+0x244/0x264 [ 217.553629][ T6199] kobject_add_internal+0x5ac/0xc3c [ 217.554367][ T6199] kobject_init_and_add+0x124/0x190 [ 217.555158][ T6199] gfs2_sys_fs_add+0x200/0x41c [ 217.555851][ T6199] gfs2_fill_super+0xddc/0x1a18 [ 217.556578][ T6199] get_tree_bdev+0x358/0x544 [ 217.557299][ T6199] gfs2_get_tree+0x54/0x1b4 [ 217.558075][ T6199] vfs_get_tree+0x90/0x274 [ 217.558790][ T6199] do_new_mount+0x228/0x810 [ 217.559503][ T6199] path_mount+0x5bc/0x1008 [ 217.560249][ T6199] __arm64_sys_mount+0x514/0x5f0 [ 217.561106][ T6199] invoke_syscall+0x98/0x2b0 [ 217.561893][ T6199] el0_svc_common+0x138/0x258 [ 217.562651][ T6199] do_el0_svc+0x58/0x13c [ 217.563370][ T6199] el0_svc+0x78/0x1d0 [ 217.564008][ T6199] el0t_64_sync_handler+0xcc/0xe4 [ 217.564801][ T6199] el0t_64_sync+0x1a0/0x1a4 [ 217.567602][ T6199] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.577809][ T6199] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.793817][ T6201] loop1: detected capacity change from 0 to 32768 [ 217.864666][ T6201] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.865859][ T6201] CPU: 1 PID: 6201 Comm: syz.1.626 Not tainted syzkaller #0 [ 217.867038][ T6201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.868580][ T6201] Call trace: [ 217.869113][ T6201] dump_backtrace+0x0/0x458 [ 217.869979][ T6201] show_stack+0x2c/0x3c [ 217.870628][ T6201] __dump_stack+0x30/0x40 [ 217.871329][ T6201] dump_stack_lvl+0xf4/0x15c [ 217.872078][ T6201] dump_stack+0x1c/0x5c [ 217.872732][ T6201] sysfs_create_dir_ns+0x244/0x264 [ 217.873599][ T6201] kobject_add_internal+0x5ac/0xc3c [ 217.874439][ T6201] kobject_init_and_add+0x124/0x190 [ 217.875297][ T6201] gfs2_sys_fs_add+0x200/0x41c [ 217.876113][ T6201] gfs2_fill_super+0xddc/0x1a18 [ 217.876915][ T6201] get_tree_bdev+0x358/0x544 [ 217.877658][ T6201] gfs2_get_tree+0x54/0x1b4 [ 217.878389][ T6201] vfs_get_tree+0x90/0x274 [ 217.879121][ T6201] do_new_mount+0x228/0x810 [ 217.879893][ T6201] path_mount+0x5bc/0x1008 [ 217.880640][ T6201] __arm64_sys_mount+0x514/0x5f0 [ 217.881445][ T6201] invoke_syscall+0x98/0x2b0 [ 217.882210][ T6201] el0_svc_common+0x138/0x258 [ 217.883025][ T6201] do_el0_svc+0x58/0x13c [ 217.883699][ T6201] el0_svc+0x78/0x1d0 [ 217.884330][ T6201] el0t_64_sync_handler+0xcc/0xe4 [ 217.885085][ T6201] el0t_64_sync+0x1a0/0x1a4 [ 217.886396][ T6201] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.888323][ T6201] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.033895][ T6203] loop1: detected capacity change from 0 to 32768 [ 218.070321][ T6203] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.071543][ T6203] CPU: 1 PID: 6203 Comm: syz.1.627 Not tainted syzkaller #0 [ 218.072650][ T6203] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.074213][ T6203] Call trace: [ 218.074750][ T6203] dump_backtrace+0x0/0x458 [ 218.075445][ T6203] show_stack+0x2c/0x3c [ 218.076127][ T6203] __dump_stack+0x30/0x40 [ 218.076755][ T6203] dump_stack_lvl+0xf4/0x15c [ 218.077417][ T6203] dump_stack+0x1c/0x5c [ 218.078083][ T6203] sysfs_create_dir_ns+0x244/0x264 [ 218.078866][ T6203] kobject_add_internal+0x5ac/0xc3c [ 218.079688][ T6203] kobject_init_and_add+0x124/0x190 [ 218.080467][ T6203] gfs2_sys_fs_add+0x200/0x41c [ 218.081244][ T6203] gfs2_fill_super+0xddc/0x1a18 [ 218.081985][ T6203] get_tree_bdev+0x358/0x544 [ 218.082734][ T6203] gfs2_get_tree+0x54/0x1b4 [ 218.083378][ T6203] vfs_get_tree+0x90/0x274 [ 218.084056][ T6203] do_new_mount+0x228/0x810 [ 218.084806][ T6203] path_mount+0x5bc/0x1008 [ 218.085576][ T6203] __arm64_sys_mount+0x514/0x5f0 [ 218.086368][ T6203] invoke_syscall+0x98/0x2b0 [ 218.087091][ T6203] el0_svc_common+0x138/0x258 [ 218.087826][ T6203] do_el0_svc+0x58/0x13c [ 218.088482][ T6203] el0_svc+0x78/0x1d0 [ 218.089120][ T6203] el0t_64_sync_handler+0xcc/0xe4 [ 218.089886][ T6203] el0t_64_sync+0x1a0/0x1a4 [ 218.094040][ T6203] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.096032][ T6203] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.294592][ T6205] loop1: detected capacity change from 0 to 32768 [ 218.330235][ T6205] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.331440][ T6205] CPU: 1 PID: 6205 Comm: syz.1.628 Not tainted syzkaller #0 [ 218.332575][ T6205] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.334178][ T6205] Call trace: [ 218.334670][ T6205] dump_backtrace+0x0/0x458 [ 218.335362][ T6205] show_stack+0x2c/0x3c [ 218.336058][ T6205] __dump_stack+0x30/0x40 [ 218.336764][ T6205] dump_stack_lvl+0xf4/0x15c [ 218.337494][ T6205] dump_stack+0x1c/0x5c [ 218.338149][ T6205] sysfs_create_dir_ns+0x244/0x264 [ 218.339055][ T6205] kobject_add_internal+0x5ac/0xc3c [ 218.339949][ T6205] kobject_init_and_add+0x124/0x190 [ 218.340867][ T6205] gfs2_sys_fs_add+0x200/0x41c [ 218.341654][ T6205] gfs2_fill_super+0xddc/0x1a18 [ 218.342379][ T6205] get_tree_bdev+0x358/0x544 [ 218.343111][ T6205] gfs2_get_tree+0x54/0x1b4 [ 218.343808][ T6205] vfs_get_tree+0x90/0x274 [ 218.344479][ T6205] do_new_mount+0x228/0x810 [ 218.345253][ T6205] path_mount+0x5bc/0x1008 [ 218.345910][ T6205] __arm64_sys_mount+0x514/0x5f0 [ 218.346654][ T6205] invoke_syscall+0x98/0x2b0 [ 218.347335][ T6205] el0_svc_common+0x138/0x258 [ 218.348052][ T6205] do_el0_svc+0x58/0x13c [ 218.348697][ T6205] el0_svc+0x78/0x1d0 [ 218.349247][ T6205] el0t_64_sync_handler+0xcc/0xe4 [ 218.350140][ T6205] el0t_64_sync+0x1a0/0x1a4 [ 218.353020][ T6205] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.355120][ T6205] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.559317][ T4884] Bluetooth: hci2: command 0x041b tx timeout [ 218.573729][ T6207] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.574979][ T6207] CPU: 1 PID: 6207 Comm: syz.1.629 Not tainted syzkaller #0 [ 218.576092][ T6207] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.577659][ T6207] Call trace: [ 218.578198][ T6207] dump_backtrace+0x0/0x458 [ 218.578863][ T6207] show_stack+0x2c/0x3c [ 218.579544][ T6207] __dump_stack+0x30/0x40 [ 218.580216][ T6207] dump_stack_lvl+0xf4/0x15c [ 218.580953][ T6207] dump_stack+0x1c/0x5c [ 218.581610][ T6207] sysfs_create_dir_ns+0x244/0x264 [ 218.582424][ T6207] kobject_add_internal+0x5ac/0xc3c [ 218.583167][ T6207] kobject_init_and_add+0x124/0x190 [ 218.583917][ T6207] gfs2_sys_fs_add+0x200/0x41c [ 218.584658][ T6207] gfs2_fill_super+0xddc/0x1a18 [ 218.585517][ T6207] get_tree_bdev+0x358/0x544 [ 218.586288][ T6207] gfs2_get_tree+0x54/0x1b4 [ 218.586978][ T6207] vfs_get_tree+0x90/0x274 [ 218.587687][ T6207] do_new_mount+0x228/0x810 [ 218.588416][ T6207] path_mount+0x5bc/0x1008 [ 218.589058][ T6207] __arm64_sys_mount+0x514/0x5f0 [ 218.589844][ T6207] invoke_syscall+0x98/0x2b0 [ 218.590523][ T6207] el0_svc_common+0x138/0x258 [ 218.591300][ T6207] do_el0_svc+0x58/0x13c [ 218.591984][ T6207] el0_svc+0x78/0x1d0 [ 218.592629][ T6207] el0t_64_sync_handler+0xcc/0xe4 [ 218.593470][ T6207] el0t_64_sync+0x1a0/0x1a4 [ 218.595970][ T6207] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.597969][ T6207] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.759209][ T6209] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.760386][ T6209] CPU: 1 PID: 6209 Comm: syz.1.630 Not tainted syzkaller #0 [ 218.761458][ T6209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.763046][ T6209] Call trace: [ 218.763531][ T6209] dump_backtrace+0x0/0x458 [ 218.764258][ T6209] show_stack+0x2c/0x3c [ 218.764968][ T6209] __dump_stack+0x30/0x40 [ 218.765634][ T6209] dump_stack_lvl+0xf4/0x15c [ 218.766314][ T6209] dump_stack+0x1c/0x5c [ 218.767011][ T6209] sysfs_create_dir_ns+0x244/0x264 [ 218.767783][ T6209] kobject_add_internal+0x5ac/0xc3c [ 218.768642][ T6209] kobject_init_and_add+0x124/0x190 [ 218.769459][ T6209] gfs2_sys_fs_add+0x200/0x41c [ 218.770228][ T6209] gfs2_fill_super+0xddc/0x1a18 [ 218.770925][ T6209] get_tree_bdev+0x358/0x544 [ 218.771636][ T6209] gfs2_get_tree+0x54/0x1b4 [ 218.772381][ T6209] vfs_get_tree+0x90/0x274 [ 218.773085][ T6209] do_new_mount+0x228/0x810 [ 218.773770][ T6209] path_mount+0x5bc/0x1008 [ 218.774437][ T6209] __arm64_sys_mount+0x514/0x5f0 [ 218.775250][ T6209] invoke_syscall+0x98/0x2b0 [ 218.776003][ T6209] el0_svc_common+0x138/0x258 [ 218.776777][ T6209] do_el0_svc+0x58/0x13c [ 218.777530][ T6209] el0_svc+0x78/0x1d0 [ 218.778174][ T6209] el0t_64_sync_handler+0xcc/0xe4 [ 218.778942][ T6209] el0t_64_sync+0x1a0/0x1a4 [ 218.780323][ T6209] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.782350][ T6209] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.917322][ T6211] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.918525][ T6211] CPU: 0 PID: 6211 Comm: syz.1.631 Not tainted syzkaller #0 [ 218.919745][ T6211] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.921395][ T6211] Call trace: [ 218.921907][ T6211] dump_backtrace+0x0/0x458 [ 218.922619][ T6211] show_stack+0x2c/0x3c [ 218.923238][ T6211] __dump_stack+0x30/0x40 [ 218.923928][ T6211] dump_stack_lvl+0xf4/0x15c [ 218.924653][ T6211] dump_stack+0x1c/0x5c [ 218.925261][ T6211] sysfs_create_dir_ns+0x244/0x264 [ 218.926024][ T6211] kobject_add_internal+0x5ac/0xc3c [ 218.926898][ T6211] kobject_init_and_add+0x124/0x190 [ 218.927625][ T6211] gfs2_sys_fs_add+0x200/0x41c [ 218.928274][ T6211] gfs2_fill_super+0xddc/0x1a18 [ 218.929023][ T6211] get_tree_bdev+0x358/0x544 [ 218.929734][ T6211] gfs2_get_tree+0x54/0x1b4 [ 218.930461][ T6211] vfs_get_tree+0x90/0x274 [ 218.931150][ T6211] do_new_mount+0x228/0x810 [ 218.931842][ T6211] path_mount+0x5bc/0x1008 [ 218.932487][ T6211] __arm64_sys_mount+0x514/0x5f0 [ 218.933233][ T6211] invoke_syscall+0x98/0x2b0 [ 218.934003][ T6211] el0_svc_common+0x138/0x258 [ 218.934696][ T6211] do_el0_svc+0x58/0x13c [ 218.935318][ T6211] el0_svc+0x78/0x1d0 [ 218.935921][ T6211] el0t_64_sync_handler+0xcc/0xe4 [ 218.936678][ T6211] el0t_64_sync+0x1a0/0x1a4 [ 218.937627][ T6211] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.939645][ T6211] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.124898][ T6213] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.126161][ T6213] CPU: 1 PID: 6213 Comm: syz.1.632 Not tainted syzkaller #0 [ 219.127324][ T6213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.128867][ T6213] Call trace: [ 219.129372][ T6213] dump_backtrace+0x0/0x458 [ 219.130109][ T6213] show_stack+0x2c/0x3c [ 219.130802][ T6213] __dump_stack+0x30/0x40 [ 219.131471][ T6213] dump_stack_lvl+0xf4/0x15c [ 219.132202][ T6213] dump_stack+0x1c/0x5c [ 219.132802][ T6213] sysfs_create_dir_ns+0x244/0x264 [ 219.133562][ T6213] kobject_add_internal+0x5ac/0xc3c [ 219.134282][ T6213] kobject_init_and_add+0x124/0x190 [ 219.135055][ T6213] gfs2_sys_fs_add+0x200/0x41c [ 219.135770][ T6213] gfs2_fill_super+0xddc/0x1a18 [ 219.136510][ T6213] get_tree_bdev+0x358/0x544 [ 219.137197][ T6213] gfs2_get_tree+0x54/0x1b4 [ 219.137954][ T6213] vfs_get_tree+0x90/0x274 [ 219.138697][ T6213] do_new_mount+0x228/0x810 [ 219.139441][ T6213] path_mount+0x5bc/0x1008 [ 219.140209][ T6213] __arm64_sys_mount+0x514/0x5f0 [ 219.141054][ T6213] invoke_syscall+0x98/0x2b0 [ 219.141757][ T6213] el0_svc_common+0x138/0x258 [ 219.142504][ T6213] do_el0_svc+0x58/0x13c [ 219.143154][ T6213] el0_svc+0x78/0x1d0 [ 219.143774][ T6213] el0t_64_sync_handler+0xcc/0xe4 [ 219.144620][ T6213] el0t_64_sync+0x1a0/0x1a4 [ 219.145974][ T6213] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.147926][ T6213] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.330303][ T6215] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.331550][ T6215] CPU: 1 PID: 6215 Comm: syz.1.633 Not tainted syzkaller #0 [ 219.332780][ T6215] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.334502][ T6215] Call trace: [ 219.334997][ T6215] dump_backtrace+0x0/0x458 [ 219.335673][ T6215] show_stack+0x2c/0x3c [ 219.336313][ T6215] __dump_stack+0x30/0x40 [ 219.336970][ T6215] dump_stack_lvl+0xf4/0x15c [ 219.337640][ T6215] dump_stack+0x1c/0x5c [ 219.338238][ T6215] sysfs_create_dir_ns+0x244/0x264 [ 219.339052][ T6215] kobject_add_internal+0x5ac/0xc3c [ 219.339853][ T6215] kobject_init_and_add+0x124/0x190 [ 219.340755][ T6215] gfs2_sys_fs_add+0x200/0x41c [ 219.341518][ T6215] gfs2_fill_super+0xddc/0x1a18 [ 219.342278][ T6215] get_tree_bdev+0x358/0x544 [ 219.342982][ T6215] gfs2_get_tree+0x54/0x1b4 [ 219.343722][ T6215] vfs_get_tree+0x90/0x274 [ 219.344385][ T6215] do_new_mount+0x228/0x810 [ 219.345064][ T6215] path_mount+0x5bc/0x1008 [ 219.345830][ T6215] __arm64_sys_mount+0x514/0x5f0 [ 219.346544][ T6215] invoke_syscall+0x98/0x2b0 [ 219.347250][ T6215] el0_svc_common+0x138/0x258 [ 219.347940][ T6215] do_el0_svc+0x58/0x13c [ 219.348709][ T6215] el0_svc+0x78/0x1d0 [ 219.349361][ T6215] el0t_64_sync_handler+0xcc/0xe4 [ 219.350194][ T6215] el0t_64_sync+0x1a0/0x1a4 [ 219.352973][ T6215] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.354930][ T6215] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.530375][ T6217] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.531593][ T6217] CPU: 1 PID: 6217 Comm: syz.1.634 Not tainted syzkaller #0 [ 219.532799][ T6217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.534304][ T6217] Call trace: [ 219.534854][ T6217] dump_backtrace+0x0/0x458 [ 219.535605][ T6217] show_stack+0x2c/0x3c [ 219.536237][ T6217] __dump_stack+0x30/0x40 [ 219.536933][ T6217] dump_stack_lvl+0xf4/0x15c [ 219.537621][ T6217] dump_stack+0x1c/0x5c [ 219.538299][ T6217] sysfs_create_dir_ns+0x244/0x264 [ 219.539044][ T6217] kobject_add_internal+0x5ac/0xc3c [ 219.539908][ T6217] kobject_init_and_add+0x124/0x190 [ 219.540667][ T6217] gfs2_sys_fs_add+0x200/0x41c [ 219.541420][ T6217] gfs2_fill_super+0xddc/0x1a18 [ 219.542245][ T6217] get_tree_bdev+0x358/0x544 [ 219.542969][ T6217] gfs2_get_tree+0x54/0x1b4 [ 219.543656][ T6217] vfs_get_tree+0x90/0x274 [ 219.544386][ T6217] do_new_mount+0x228/0x810 [ 219.545135][ T6217] path_mount+0x5bc/0x1008 [ 219.545841][ T6217] __arm64_sys_mount+0x514/0x5f0 [ 219.546557][ T6217] invoke_syscall+0x98/0x2b0 [ 219.547280][ T6217] el0_svc_common+0x138/0x258 [ 219.548115][ T6217] do_el0_svc+0x58/0x13c [ 219.548736][ T6217] el0_svc+0x78/0x1d0 [ 219.549399][ T6217] el0t_64_sync_handler+0xcc/0xe4 [ 219.550207][ T6217] el0t_64_sync+0x1a0/0x1a4 [ 219.553108][ T6217] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.555722][ T6217] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.697800][ T6219] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.699185][ T6219] CPU: 0 PID: 6219 Comm: syz.1.635 Not tainted syzkaller #0 [ 219.700270][ T6219] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.701832][ T6219] Call trace: [ 219.702324][ T6219] dump_backtrace+0x0/0x458 [ 219.703054][ T6219] show_stack+0x2c/0x3c [ 219.703692][ T6219] __dump_stack+0x30/0x40 [ 219.704354][ T6219] dump_stack_lvl+0xf4/0x15c [ 219.705076][ T6219] dump_stack+0x1c/0x5c [ 219.705708][ T6219] sysfs_create_dir_ns+0x244/0x264 [ 219.706530][ T6219] kobject_add_internal+0x5ac/0xc3c [ 219.707357][ T6219] kobject_init_and_add+0x124/0x190 [ 219.708128][ T6219] gfs2_sys_fs_add+0x200/0x41c [ 219.708850][ T6219] gfs2_fill_super+0xddc/0x1a18 [ 219.709619][ T6219] get_tree_bdev+0x358/0x544 [ 219.710347][ T6219] gfs2_get_tree+0x54/0x1b4 [ 219.710965][ T6219] vfs_get_tree+0x90/0x274 [ 219.711648][ T6219] do_new_mount+0x228/0x810 [ 219.712423][ T6219] path_mount+0x5bc/0x1008 [ 219.713058][ T6219] __arm64_sys_mount+0x514/0x5f0 [ 219.713889][ T6219] invoke_syscall+0x98/0x2b0 [ 219.714668][ T6219] el0_svc_common+0x138/0x258 [ 219.715464][ T6219] do_el0_svc+0x58/0x13c [ 219.716135][ T6219] el0_svc+0x78/0x1d0 [ 219.716734][ T6219] el0t_64_sync_handler+0xcc/0xe4 [ 219.717536][ T6219] el0t_64_sync+0x1a0/0x1a4 [ 219.719603][ T6219] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.721607][ T6219] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.924421][ T6221] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.925619][ T6221] CPU: 1 PID: 6221 Comm: syz.1.636 Not tainted syzkaller #0 [ 219.926849][ T6221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.928435][ T6221] Call trace: [ 219.928939][ T6221] dump_backtrace+0x0/0x458 [ 219.929662][ T6221] show_stack+0x2c/0x3c [ 219.930344][ T6221] __dump_stack+0x30/0x40 [ 219.931044][ T6221] dump_stack_lvl+0xf4/0x15c [ 219.931882][ T6221] dump_stack+0x1c/0x5c [ 219.932617][ T6221] sysfs_create_dir_ns+0x244/0x264 [ 219.933482][ T6221] kobject_add_internal+0x5ac/0xc3c [ 219.934344][ T6221] kobject_init_and_add+0x124/0x190 [ 219.935205][ T6221] gfs2_sys_fs_add+0x200/0x41c [ 219.936005][ T6221] gfs2_fill_super+0xddc/0x1a18 [ 219.936788][ T6221] get_tree_bdev+0x358/0x544 [ 219.937464][ T6221] gfs2_get_tree+0x54/0x1b4 [ 219.938154][ T6221] vfs_get_tree+0x90/0x274 [ 219.938879][ T6221] do_new_mount+0x228/0x810 [ 219.939585][ T6221] path_mount+0x5bc/0x1008 [ 219.940239][ T6221] __arm64_sys_mount+0x514/0x5f0 [ 219.940999][ T6221] invoke_syscall+0x98/0x2b0 [ 219.941702][ T6221] el0_svc_common+0x138/0x258 [ 219.942495][ T6221] do_el0_svc+0x58/0x13c [ 219.943184][ T6221] el0_svc+0x78/0x1d0 [ 219.943819][ T6221] el0t_64_sync_handler+0xcc/0xe4 [ 219.944637][ T6221] el0t_64_sync+0x1a0/0x1a4 [ 219.946165][ T6221] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.948104][ T6221] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.085484][ T6223] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.086728][ T6223] CPU: 0 PID: 6223 Comm: syz.1.637 Not tainted syzkaller #0 [ 220.087902][ T6223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.089520][ T6223] Call trace: [ 220.090005][ T6223] dump_backtrace+0x0/0x458 [ 220.090698][ T6223] show_stack+0x2c/0x3c [ 220.091359][ T6223] __dump_stack+0x30/0x40 [ 220.092019][ T6223] dump_stack_lvl+0xf4/0x15c [ 220.092711][ T6223] dump_stack+0x1c/0x5c [ 220.093371][ T6223] sysfs_create_dir_ns+0x244/0x264 [ 220.094113][ T6223] kobject_add_internal+0x5ac/0xc3c [ 220.094932][ T6223] kobject_init_and_add+0x124/0x190 [ 220.095745][ T6223] gfs2_sys_fs_add+0x200/0x41c [ 220.096499][ T6223] gfs2_fill_super+0xddc/0x1a18 [ 220.097259][ T6223] get_tree_bdev+0x358/0x544 [ 220.098042][ T6223] gfs2_get_tree+0x54/0x1b4 [ 220.098794][ T6223] vfs_get_tree+0x90/0x274 [ 220.099536][ T6223] do_new_mount+0x228/0x810 [ 220.100295][ T6223] path_mount+0x5bc/0x1008 [ 220.101037][ T6223] __arm64_sys_mount+0x514/0x5f0 [ 220.101869][ T6223] invoke_syscall+0x98/0x2b0 [ 220.102645][ T6223] el0_svc_common+0x138/0x258 [ 220.103409][ T6223] do_el0_svc+0x58/0x13c [ 220.104139][ T6223] el0_svc+0x78/0x1d0 [ 220.104748][ T6223] el0t_64_sync_handler+0xcc/0xe4 [ 220.105673][ T6223] el0t_64_sync+0x1a0/0x1a4 [ 220.106882][ T6223] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.108998][ T6223] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.335678][ T6225] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.337027][ T6225] CPU: 0 PID: 6225 Comm: syz.1.638 Not tainted syzkaller #0 [ 220.338322][ T6225] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.339854][ T6225] Call trace: [ 220.340381][ T6225] dump_backtrace+0x0/0x458 [ 220.341086][ T6225] show_stack+0x2c/0x3c [ 220.341708][ T6225] __dump_stack+0x30/0x40 [ 220.342421][ T6225] dump_stack_lvl+0xf4/0x15c [ 220.343191][ T6225] dump_stack+0x1c/0x5c [ 220.343872][ T6225] sysfs_create_dir_ns+0x244/0x264 [ 220.344681][ T6225] kobject_add_internal+0x5ac/0xc3c [ 220.345485][ T6225] kobject_init_and_add+0x124/0x190 [ 220.346250][ T6225] gfs2_sys_fs_add+0x200/0x41c [ 220.346989][ T6225] gfs2_fill_super+0xddc/0x1a18 [ 220.347733][ T6225] get_tree_bdev+0x358/0x544 [ 220.348395][ T6225] gfs2_get_tree+0x54/0x1b4 [ 220.349033][ T6225] vfs_get_tree+0x90/0x274 [ 220.349752][ T6225] do_new_mount+0x228/0x810 [ 220.350374][ T6225] path_mount+0x5bc/0x1008 [ 220.351027][ T6225] __arm64_sys_mount+0x514/0x5f0 [ 220.351815][ T6225] invoke_syscall+0x98/0x2b0 [ 220.352536][ T6225] el0_svc_common+0x138/0x258 [ 220.353277][ T6225] do_el0_svc+0x58/0x13c [ 220.353954][ T6225] el0_svc+0x78/0x1d0 [ 220.354636][ T6225] el0t_64_sync_handler+0xcc/0xe4 [ 220.355431][ T6225] el0t_64_sync+0x1a0/0x1a4 [ 220.356507][ T6225] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.358480][ T6225] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.530254][ T6227] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.531459][ T6227] CPU: 0 PID: 6227 Comm: syz.1.639 Not tainted syzkaller #0 [ 220.532656][ T6227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.534235][ T6227] Call trace: [ 220.534717][ T6227] dump_backtrace+0x0/0x458 [ 220.535455][ T6227] show_stack+0x2c/0x3c [ 220.536127][ T6227] __dump_stack+0x30/0x40 [ 220.536796][ T6227] dump_stack_lvl+0xf4/0x15c [ 220.537590][ T6227] dump_stack+0x1c/0x5c [ 220.538223][ T6227] sysfs_create_dir_ns+0x244/0x264 [ 220.539033][ T6227] kobject_add_internal+0x5ac/0xc3c [ 220.539784][ T6227] kobject_init_and_add+0x124/0x190 [ 220.540602][ T6227] gfs2_sys_fs_add+0x200/0x41c [ 220.541333][ T6227] gfs2_fill_super+0xddc/0x1a18 [ 220.542109][ T6227] get_tree_bdev+0x358/0x544 [ 220.542826][ T6227] gfs2_get_tree+0x54/0x1b4 [ 220.543518][ T6227] vfs_get_tree+0x90/0x274 [ 220.544231][ T6227] do_new_mount+0x228/0x810 [ 220.544972][ T6227] path_mount+0x5bc/0x1008 [ 220.545682][ T6227] __arm64_sys_mount+0x514/0x5f0 [ 220.546508][ T6227] invoke_syscall+0x98/0x2b0 [ 220.547294][ T6227] el0_svc_common+0x138/0x258 [ 220.548036][ T6227] do_el0_svc+0x58/0x13c [ 220.548713][ T6227] el0_svc+0x78/0x1d0 [ 220.549374][ T6227] el0t_64_sync_handler+0xcc/0xe4 [ 220.550159][ T6227] el0t_64_sync+0x1a0/0x1a4 [ 220.551410][ T6227] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.553432][ T6227] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.640410][ T4884] Bluetooth: hci2: command 0x040f tx timeout [ 220.690730][ T6229] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.692063][ T6229] CPU: 0 PID: 6229 Comm: syz.1.640 Not tainted syzkaller #0 [ 220.693334][ T6229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.694973][ T6229] Call trace: [ 220.695513][ T6229] dump_backtrace+0x0/0x458 [ 220.696233][ T6229] show_stack+0x2c/0x3c [ 220.696933][ T6229] __dump_stack+0x30/0x40 [ 220.697693][ T6229] dump_stack_lvl+0xf4/0x15c [ 220.698423][ T6229] dump_stack+0x1c/0x5c [ 220.699051][ T6229] sysfs_create_dir_ns+0x244/0x264 [ 220.699839][ T6229] kobject_add_internal+0x5ac/0xc3c [ 220.700605][ T6229] kobject_init_and_add+0x124/0x190 [ 220.701511][ T6229] gfs2_sys_fs_add+0x200/0x41c [ 220.702319][ T6229] gfs2_fill_super+0xddc/0x1a18 [ 220.703124][ T6229] get_tree_bdev+0x358/0x544 [ 220.703912][ T6229] gfs2_get_tree+0x54/0x1b4 [ 220.704579][ T6229] vfs_get_tree+0x90/0x274 [ 220.705263][ T6229] do_new_mount+0x228/0x810 [ 220.706051][ T6229] path_mount+0x5bc/0x1008 [ 220.706811][ T6229] __arm64_sys_mount+0x514/0x5f0 [ 220.707674][ T6229] invoke_syscall+0x98/0x2b0 [ 220.708374][ T6229] el0_svc_common+0x138/0x258 [ 220.709125][ T6229] do_el0_svc+0x58/0x13c [ 220.709789][ T6229] el0_svc+0x78/0x1d0 [ 220.710450][ T6229] el0t_64_sync_handler+0xcc/0xe4 [ 220.711263][ T6229] el0t_64_sync+0x1a0/0x1a4 [ 220.713516][ T6229] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.715549][ T6229] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.883881][ T6231] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.885353][ T6231] CPU: 0 PID: 6231 Comm: syz.1.641 Not tainted syzkaller #0 [ 220.886473][ T6231] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.888027][ T6231] Call trace: [ 220.888554][ T6231] dump_backtrace+0x0/0x458 [ 220.889315][ T6231] show_stack+0x2c/0x3c [ 220.890014][ T6231] __dump_stack+0x30/0x40 [ 220.890758][ T6231] dump_stack_lvl+0xf4/0x15c [ 220.891545][ T6231] dump_stack+0x1c/0x5c [ 220.892225][ T6231] sysfs_create_dir_ns+0x244/0x264 [ 220.892985][ T6231] kobject_add_internal+0x5ac/0xc3c [ 220.893866][ T6231] kobject_init_and_add+0x124/0x190 [ 220.894696][ T6231] gfs2_sys_fs_add+0x200/0x41c [ 220.895490][ T6231] gfs2_fill_super+0xddc/0x1a18 [ 220.896291][ T6231] get_tree_bdev+0x358/0x544 [ 220.897052][ T6231] gfs2_get_tree+0x54/0x1b4 [ 220.897740][ T6231] vfs_get_tree+0x90/0x274 [ 220.898439][ T6231] do_new_mount+0x228/0x810 [ 220.899217][ T6231] path_mount+0x5bc/0x1008 [ 220.899959][ T6231] __arm64_sys_mount+0x514/0x5f0 [ 220.900795][ T6231] invoke_syscall+0x98/0x2b0 [ 220.901589][ T6231] el0_svc_common+0x138/0x258 [ 220.902306][ T6231] do_el0_svc+0x58/0x13c [ 220.902957][ T6231] el0_svc+0x78/0x1d0 [ 220.903621][ T6231] el0t_64_sync_handler+0xcc/0xe4 [ 220.904363][ T6231] el0t_64_sync+0x1a0/0x1a4 [ 220.906976][ T6231] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.908924][ T6231] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.095167][ T6233] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.096383][ T6233] CPU: 0 PID: 6233 Comm: syz.1.642 Not tainted syzkaller #0 [ 221.097475][ T6233] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.099063][ T6233] Call trace: [ 221.099517][ T6233] dump_backtrace+0x0/0x458 [ 221.100164][ T6233] show_stack+0x2c/0x3c [ 221.100786][ T6233] __dump_stack+0x30/0x40 [ 221.101531][ T6233] dump_stack_lvl+0xf4/0x15c [ 221.102263][ T6233] dump_stack+0x1c/0x5c [ 221.102931][ T6233] sysfs_create_dir_ns+0x244/0x264 [ 221.103760][ T6233] kobject_add_internal+0x5ac/0xc3c [ 221.104582][ T6233] kobject_init_and_add+0x124/0x190 [ 221.105410][ T6233] gfs2_sys_fs_add+0x200/0x41c [ 221.106237][ T6233] gfs2_fill_super+0xddc/0x1a18 [ 221.107057][ T6233] get_tree_bdev+0x358/0x544 [ 221.107800][ T6233] gfs2_get_tree+0x54/0x1b4 [ 221.108540][ T6233] vfs_get_tree+0x90/0x274 [ 221.109263][ T6233] do_new_mount+0x228/0x810 [ 221.109953][ T6233] path_mount+0x5bc/0x1008 [ 221.110643][ T6233] __arm64_sys_mount+0x514/0x5f0 [ 221.111458][ T6233] invoke_syscall+0x98/0x2b0 [ 221.112169][ T6233] el0_svc_common+0x138/0x258 [ 221.112918][ T6233] do_el0_svc+0x58/0x13c [ 221.113591][ T6233] el0_svc+0x78/0x1d0 [ 221.114264][ T6233] el0t_64_sync_handler+0xcc/0xe4 [ 221.115096][ T6233] el0t_64_sync+0x1a0/0x1a4 [ 221.117234][ T6233] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.121214][ T6233] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:41 executed programs: 629 [ 221.312258][ T6235] set_capacity_and_notify: 14 callbacks suppressed [ 221.312268][ T6235] loop1: detected capacity change from 0 to 32768 [ 221.364248][ T6235] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.365701][ T6235] CPU: 0 PID: 6235 Comm: syz.1.643 Not tainted syzkaller #0 [ 221.366765][ T6235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.368263][ T6235] Call trace: [ 221.368726][ T6235] dump_backtrace+0x0/0x458 [ 221.369430][ T6235] show_stack+0x2c/0x3c [ 221.370091][ T6235] __dump_stack+0x30/0x40 [ 221.370814][ T6235] dump_stack_lvl+0xf4/0x15c [ 221.371558][ T6235] dump_stack+0x1c/0x5c [ 221.372205][ T6235] sysfs_create_dir_ns+0x244/0x264 [ 221.372986][ T6235] kobject_add_internal+0x5ac/0xc3c [ 221.373722][ T6235] kobject_init_and_add+0x124/0x190 [ 221.374518][ T6235] gfs2_sys_fs_add+0x200/0x41c [ 221.375231][ T6235] gfs2_fill_super+0xddc/0x1a18 [ 221.376017][ T6235] get_tree_bdev+0x358/0x544 [ 221.376823][ T6235] gfs2_get_tree+0x54/0x1b4 [ 221.377531][ T6235] vfs_get_tree+0x90/0x274 [ 221.378220][ T6235] do_new_mount+0x228/0x810 [ 221.378962][ T6235] path_mount+0x5bc/0x1008 [ 221.379605][ T6235] __arm64_sys_mount+0x514/0x5f0 [ 221.380350][ T6235] invoke_syscall+0x98/0x2b0 [ 221.381125][ T6235] el0_svc_common+0x138/0x258 [ 221.381895][ T6235] do_el0_svc+0x58/0x13c [ 221.382619][ T6235] el0_svc+0x78/0x1d0 [ 221.383286][ T6235] el0t_64_sync_handler+0xcc/0xe4 [ 221.384084][ T6235] el0t_64_sync+0x1a0/0x1a4 [ 221.386259][ T6235] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.388225][ T6235] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.530952][ T6237] loop1: detected capacity change from 0 to 32768 [ 221.594327][ T6237] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.595530][ T6237] CPU: 0 PID: 6237 Comm: syz.1.644 Not tainted syzkaller #0 [ 221.596650][ T6237] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.598166][ T6237] Call trace: [ 221.598653][ T6237] dump_backtrace+0x0/0x458 [ 221.599334][ T6237] show_stack+0x2c/0x3c [ 221.599932][ T6237] __dump_stack+0x30/0x40 [ 221.600546][ T6237] dump_stack_lvl+0xf4/0x15c [ 221.601317][ T6237] dump_stack+0x1c/0x5c [ 221.602016][ T6237] sysfs_create_dir_ns+0x244/0x264 [ 221.602813][ T6237] kobject_add_internal+0x5ac/0xc3c [ 221.603677][ T6237] kobject_init_and_add+0x124/0x190 [ 221.604489][ T6237] gfs2_sys_fs_add+0x200/0x41c [ 221.605223][ T6237] gfs2_fill_super+0xddc/0x1a18 [ 221.605953][ T6237] get_tree_bdev+0x358/0x544 [ 221.606687][ T6237] gfs2_get_tree+0x54/0x1b4 [ 221.607400][ T6237] vfs_get_tree+0x90/0x274 [ 221.608060][ T6237] do_new_mount+0x228/0x810 [ 221.608734][ T6237] path_mount+0x5bc/0x1008 [ 221.609375][ T6237] __arm64_sys_mount+0x514/0x5f0 [ 221.610220][ T6237] invoke_syscall+0x98/0x2b0 [ 221.610985][ T6237] el0_svc_common+0x138/0x258 [ 221.611808][ T6237] do_el0_svc+0x58/0x13c [ 221.612528][ T6237] el0_svc+0x78/0x1d0 [ 221.613195][ T6237] el0t_64_sync_handler+0xcc/0xe4 [ 221.614040][ T6237] el0t_64_sync+0x1a0/0x1a4 [ 221.616622][ T6237] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.618616][ T6237] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.749795][ T6239] loop1: detected capacity change from 0 to 32768 [ 221.790305][ T6239] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.791485][ T6239] CPU: 1 PID: 6239 Comm: syz.1.645 Not tainted syzkaller #0 [ 221.792578][ T6239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.794069][ T6239] Call trace: [ 221.794549][ T6239] dump_backtrace+0x0/0x458 [ 221.795318][ T6239] show_stack+0x2c/0x3c [ 221.795985][ T6239] __dump_stack+0x30/0x40 [ 221.796655][ T6239] dump_stack_lvl+0xf4/0x15c [ 221.797369][ T6239] dump_stack+0x1c/0x5c [ 221.797999][ T6239] sysfs_create_dir_ns+0x244/0x264 [ 221.798847][ T6239] kobject_add_internal+0x5ac/0xc3c [ 221.799723][ T6239] kobject_init_and_add+0x124/0x190 [ 221.800525][ T6239] gfs2_sys_fs_add+0x200/0x41c [ 221.801235][ T6239] gfs2_fill_super+0xddc/0x1a18 [ 221.801981][ T6239] get_tree_bdev+0x358/0x544 [ 221.802693][ T6239] gfs2_get_tree+0x54/0x1b4 [ 221.803399][ T6239] vfs_get_tree+0x90/0x274 [ 221.804073][ T6239] do_new_mount+0x228/0x810 [ 221.804749][ T6239] path_mount+0x5bc/0x1008 [ 221.805454][ T6239] __arm64_sys_mount+0x514/0x5f0 [ 221.806247][ T6239] invoke_syscall+0x98/0x2b0 [ 221.806974][ T6239] el0_svc_common+0x138/0x258 [ 221.807739][ T6239] do_el0_svc+0x58/0x13c [ 221.808384][ T6239] el0_svc+0x78/0x1d0 [ 221.808983][ T6239] el0t_64_sync_handler+0xcc/0xe4 [ 221.809726][ T6239] el0t_64_sync+0x1a0/0x1a4 [ 221.811369][ T6239] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.813325][ T6239] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.944372][ T6241] loop1: detected capacity change from 0 to 32768 [ 222.023381][ T6241] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.024667][ T6241] CPU: 1 PID: 6241 Comm: syz.1.646 Not tainted syzkaller #0 [ 222.025810][ T6241] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.027482][ T6241] Call trace: [ 222.028062][ T6241] dump_backtrace+0x0/0x458 [ 222.028816][ T6241] show_stack+0x2c/0x3c [ 222.029510][ T6241] __dump_stack+0x30/0x40 [ 222.030288][ T6241] dump_stack_lvl+0xf4/0x15c [ 222.031033][ T6241] dump_stack+0x1c/0x5c [ 222.031714][ T6241] sysfs_create_dir_ns+0x244/0x264 [ 222.032586][ T6241] kobject_add_internal+0x5ac/0xc3c [ 222.033428][ T6241] kobject_init_and_add+0x124/0x190 [ 222.034278][ T6241] gfs2_sys_fs_add+0x200/0x41c [ 222.035099][ T6241] gfs2_fill_super+0xddc/0x1a18 [ 222.035872][ T6241] get_tree_bdev+0x358/0x544 [ 222.036614][ T6241] gfs2_get_tree+0x54/0x1b4 [ 222.037336][ T6241] vfs_get_tree+0x90/0x274 [ 222.038017][ T6241] do_new_mount+0x228/0x810 [ 222.038663][ T6241] path_mount+0x5bc/0x1008 [ 222.039333][ T6241] __arm64_sys_mount+0x514/0x5f0 [ 222.040026][ T6241] invoke_syscall+0x98/0x2b0 [ 222.040737][ T6241] el0_svc_common+0x138/0x258 [ 222.041497][ T6241] do_el0_svc+0x58/0x13c [ 222.042122][ T6241] el0_svc+0x78/0x1d0 [ 222.042820][ T6241] el0t_64_sync_handler+0xcc/0xe4 [ 222.043605][ T6241] el0t_64_sync+0x1a0/0x1a4 [ 222.045950][ T6241] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.047970][ T6241] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.184776][ T6243] loop1: detected capacity change from 0 to 32768 [ 222.220146][ T6243] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.221260][ T6243] CPU: 1 PID: 6243 Comm: syz.1.647 Not tainted syzkaller #0 [ 222.222340][ T6243] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.223877][ T6243] Call trace: [ 222.224339][ T6243] dump_backtrace+0x0/0x458 [ 222.225007][ T6243] show_stack+0x2c/0x3c [ 222.225617][ T6243] __dump_stack+0x30/0x40 [ 222.226259][ T6243] dump_stack_lvl+0xf4/0x15c [ 222.226986][ T6243] dump_stack+0x1c/0x5c [ 222.227659][ T6243] sysfs_create_dir_ns+0x244/0x264 [ 222.228438][ T6243] kobject_add_internal+0x5ac/0xc3c [ 222.229249][ T6243] kobject_init_and_add+0x124/0x190 [ 222.230154][ T6243] gfs2_sys_fs_add+0x200/0x41c [ 222.230923][ T6243] gfs2_fill_super+0xddc/0x1a18 [ 222.231714][ T6243] get_tree_bdev+0x358/0x544 [ 222.232460][ T6243] gfs2_get_tree+0x54/0x1b4 [ 222.233211][ T6243] vfs_get_tree+0x90/0x274 [ 222.233894][ T6243] do_new_mount+0x228/0x810 [ 222.234673][ T6243] path_mount+0x5bc/0x1008 [ 222.235365][ T6243] __arm64_sys_mount+0x514/0x5f0 [ 222.236155][ T6243] invoke_syscall+0x98/0x2b0 [ 222.236862][ T6243] el0_svc_common+0x138/0x258 [ 222.237561][ T6243] do_el0_svc+0x58/0x13c [ 222.238207][ T6243] el0_svc+0x78/0x1d0 [ 222.238806][ T6243] el0t_64_sync_handler+0xcc/0xe4 [ 222.239566][ T6243] el0t_64_sync+0x1a0/0x1a4 [ 222.241065][ T6243] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.242980][ T6243] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.374463][ T6245] loop1: detected capacity change from 0 to 32768 [ 222.419140][ T6245] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.420390][ T6245] CPU: 1 PID: 6245 Comm: syz.1.648 Not tainted syzkaller #0 [ 222.421530][ T6245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.423298][ T6245] Call trace: [ 222.423836][ T6245] dump_backtrace+0x0/0x458 [ 222.424609][ T6245] show_stack+0x2c/0x3c [ 222.425339][ T6245] __dump_stack+0x30/0x40 [ 222.426048][ T6245] dump_stack_lvl+0xf4/0x15c [ 222.426776][ T6245] dump_stack+0x1c/0x5c [ 222.427426][ T6245] sysfs_create_dir_ns+0x244/0x264 [ 222.428247][ T6245] kobject_add_internal+0x5ac/0xc3c [ 222.429071][ T6245] kobject_init_and_add+0x124/0x190 [ 222.429988][ T6245] gfs2_sys_fs_add+0x200/0x41c [ 222.430790][ T6245] gfs2_fill_super+0xddc/0x1a18 [ 222.431588][ T6245] get_tree_bdev+0x358/0x544 [ 222.432394][ T6245] gfs2_get_tree+0x54/0x1b4 [ 222.433209][ T6245] vfs_get_tree+0x90/0x274 [ 222.433922][ T6245] do_new_mount+0x228/0x810 [ 222.434625][ T6245] path_mount+0x5bc/0x1008 [ 222.435258][ T6245] __arm64_sys_mount+0x514/0x5f0 [ 222.436014][ T6245] invoke_syscall+0x98/0x2b0 [ 222.436783][ T6245] el0_svc_common+0x138/0x258 [ 222.437510][ T6245] do_el0_svc+0x58/0x13c [ 222.438159][ T6245] el0_svc+0x78/0x1d0 [ 222.438829][ T6245] el0t_64_sync_handler+0xcc/0xe4 [ 222.439565][ T6245] el0t_64_sync+0x1a0/0x1a4 [ 222.441966][ T6245] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.443838][ T6245] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.575125][ T6247] loop1: detected capacity change from 0 to 32768 [ 222.610607][ T6247] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.611884][ T6247] CPU: 0 PID: 6247 Comm: syz.1.649 Not tainted syzkaller #0 [ 222.613060][ T6247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.614656][ T6247] Call trace: [ 222.615186][ T6247] dump_backtrace+0x0/0x458 [ 222.615832][ T6247] show_stack+0x2c/0x3c [ 222.616532][ T6247] __dump_stack+0x30/0x40 [ 222.617256][ T6247] dump_stack_lvl+0xf4/0x15c [ 222.618012][ T6247] dump_stack+0x1c/0x5c [ 222.618760][ T6247] sysfs_create_dir_ns+0x244/0x264 [ 222.619637][ T6247] kobject_add_internal+0x5ac/0xc3c [ 222.620557][ T6247] kobject_init_and_add+0x124/0x190 [ 222.621447][ T6247] gfs2_sys_fs_add+0x200/0x41c [ 222.622277][ T6247] gfs2_fill_super+0xddc/0x1a18 [ 222.623119][ T6247] get_tree_bdev+0x358/0x544 [ 222.623914][ T6247] gfs2_get_tree+0x54/0x1b4 [ 222.624965][ T6247] vfs_get_tree+0x90/0x274 [ 222.625674][ T6247] do_new_mount+0x228/0x810 [ 222.626462][ T6247] path_mount+0x5bc/0x1008 [ 222.627241][ T6247] __arm64_sys_mount+0x514/0x5f0 [ 222.628075][ T6247] invoke_syscall+0x98/0x2b0 [ 222.628860][ T6247] el0_svc_common+0x138/0x258 [ 222.629628][ T6247] do_el0_svc+0x58/0x13c [ 222.630308][ T6247] el0_svc+0x78/0x1d0 [ 222.630972][ T6247] el0t_64_sync_handler+0xcc/0xe4 [ 222.631781][ T6247] el0t_64_sync+0x1a0/0x1a4 [ 222.632807][ T6247] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.634911][ T6247] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.720460][ T4889] Bluetooth: hci2: command 0x0419 tx timeout [ 222.799496][ T6249] loop1: detected capacity change from 0 to 32768 [ 222.850173][ T6249] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.851354][ T6249] CPU: 1 PID: 6249 Comm: syz.1.650 Not tainted syzkaller #0 [ 222.852548][ T6249] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.854088][ T6249] Call trace: [ 222.854620][ T6249] dump_backtrace+0x0/0x458 [ 222.855372][ T6249] show_stack+0x2c/0x3c [ 222.856001][ T6249] __dump_stack+0x30/0x40 [ 222.856656][ T6249] dump_stack_lvl+0xf4/0x15c [ 222.857292][ T6249] dump_stack+0x1c/0x5c [ 222.857944][ T6249] sysfs_create_dir_ns+0x244/0x264 [ 222.858780][ T6249] kobject_add_internal+0x5ac/0xc3c [ 222.859578][ T6249] kobject_init_and_add+0x124/0x190 [ 222.860360][ T6249] gfs2_sys_fs_add+0x200/0x41c [ 222.861048][ T6249] gfs2_fill_super+0xddc/0x1a18 [ 222.861766][ T6249] get_tree_bdev+0x358/0x544 [ 222.862460][ T6249] gfs2_get_tree+0x54/0x1b4 [ 222.863151][ T6249] vfs_get_tree+0x90/0x274 [ 222.863772][ T6249] do_new_mount+0x228/0x810 [ 222.864443][ T6249] path_mount+0x5bc/0x1008 [ 222.865093][ T6249] __arm64_sys_mount+0x514/0x5f0 [ 222.865782][ T6249] invoke_syscall+0x98/0x2b0 [ 222.866454][ T6249] el0_svc_common+0x138/0x258 [ 222.867179][ T6249] do_el0_svc+0x58/0x13c [ 222.867828][ T6249] el0_svc+0x78/0x1d0 [ 222.868450][ T6249] el0t_64_sync_handler+0xcc/0xe4 [ 222.869235][ T6249] el0t_64_sync+0x1a0/0x1a4 [ 222.870115][ T6249] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.872110][ T6249] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.002201][ T6251] loop1: detected capacity change from 0 to 32768 [ 223.050283][ T6251] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.051516][ T6251] CPU: 0 PID: 6251 Comm: syz.1.651 Not tainted syzkaller #0 [ 223.052636][ T6251] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.054191][ T6251] Call trace: [ 223.054753][ T6251] dump_backtrace+0x0/0x458 [ 223.055414][ T6251] show_stack+0x2c/0x3c [ 223.056143][ T6251] __dump_stack+0x30/0x40 [ 223.056871][ T6251] dump_stack_lvl+0xf4/0x15c [ 223.057604][ T6251] dump_stack+0x1c/0x5c [ 223.058239][ T6251] sysfs_create_dir_ns+0x244/0x264 [ 223.059050][ T6251] kobject_add_internal+0x5ac/0xc3c [ 223.059965][ T6251] kobject_init_and_add+0x124/0x190 [ 223.060831][ T6251] gfs2_sys_fs_add+0x200/0x41c [ 223.061585][ T6251] gfs2_fill_super+0xddc/0x1a18 [ 223.062342][ T6251] get_tree_bdev+0x358/0x544 [ 223.063100][ T6251] gfs2_get_tree+0x54/0x1b4 [ 223.063850][ T6251] vfs_get_tree+0x90/0x274 [ 223.064560][ T6251] do_new_mount+0x228/0x810 [ 223.065305][ T6251] path_mount+0x5bc/0x1008 [ 223.065989][ T6251] __arm64_sys_mount+0x514/0x5f0 [ 223.066760][ T6251] invoke_syscall+0x98/0x2b0 [ 223.067441][ T6251] el0_svc_common+0x138/0x258 [ 223.068166][ T6251] do_el0_svc+0x58/0x13c [ 223.068835][ T6251] el0_svc+0x78/0x1d0 [ 223.069465][ T6251] el0t_64_sync_handler+0xcc/0xe4 [ 223.070281][ T6251] el0t_64_sync+0x1a0/0x1a4 [ 223.071171][ T6251] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.073167][ T6251] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.200972][ T6253] loop1: detected capacity change from 0 to 32768 [ 223.260272][ T6253] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.261474][ T6253] CPU: 1 PID: 6253 Comm: syz.1.652 Not tainted syzkaller #0 [ 223.262636][ T6253] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.264447][ T6253] Call trace: [ 223.265019][ T6253] dump_backtrace+0x0/0x458 [ 223.265785][ T6253] show_stack+0x2c/0x3c [ 223.266452][ T6253] __dump_stack+0x30/0x40 [ 223.267160][ T6253] dump_stack_lvl+0xf4/0x15c [ 223.267862][ T6253] dump_stack+0x1c/0x5c [ 223.268525][ T6253] sysfs_create_dir_ns+0x244/0x264 [ 223.269336][ T6253] kobject_add_internal+0x5ac/0xc3c [ 223.270202][ T6253] kobject_init_and_add+0x124/0x190 [ 223.270930][ T6253] gfs2_sys_fs_add+0x200/0x41c [ 223.271701][ T6253] gfs2_fill_super+0xddc/0x1a18 [ 223.272432][ T6253] get_tree_bdev+0x358/0x544 [ 223.273233][ T6253] gfs2_get_tree+0x54/0x1b4 [ 223.274030][ T6253] vfs_get_tree+0x90/0x274 [ 223.274763][ T6253] do_new_mount+0x228/0x810 [ 223.275519][ T6253] path_mount+0x5bc/0x1008 [ 223.276274][ T6253] __arm64_sys_mount+0x514/0x5f0 [ 223.277067][ T6253] invoke_syscall+0x98/0x2b0 [ 223.277762][ T6253] el0_svc_common+0x138/0x258 [ 223.278544][ T6253] do_el0_svc+0x58/0x13c [ 223.279230][ T6253] el0_svc+0x78/0x1d0 [ 223.279911][ T6253] el0t_64_sync_handler+0xcc/0xe4 [ 223.280749][ T6253] el0t_64_sync+0x1a0/0x1a4 [ 223.283106][ T6253] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.285076][ T6253] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.520211][ T6255] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.521406][ T6255] CPU: 0 PID: 6255 Comm: syz.1.653 Not tainted syzkaller #0 [ 223.522615][ T6255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.524323][ T6255] Call trace: [ 223.524865][ T6255] dump_backtrace+0x0/0x458 [ 223.525628][ T6255] show_stack+0x2c/0x3c [ 223.526292][ T6255] __dump_stack+0x30/0x40 [ 223.527063][ T6255] dump_stack_lvl+0xf4/0x15c [ 223.527811][ T6255] dump_stack+0x1c/0x5c [ 223.528442][ T6255] sysfs_create_dir_ns+0x244/0x264 [ 223.529247][ T6255] kobject_add_internal+0x5ac/0xc3c [ 223.530123][ T6255] kobject_init_and_add+0x124/0x190 [ 223.531063][ T6255] gfs2_sys_fs_add+0x200/0x41c [ 223.531870][ T6255] gfs2_fill_super+0xddc/0x1a18 [ 223.532641][ T6255] get_tree_bdev+0x358/0x544 [ 223.533373][ T6255] gfs2_get_tree+0x54/0x1b4 [ 223.534102][ T6255] vfs_get_tree+0x90/0x274 [ 223.534839][ T6255] do_new_mount+0x228/0x810 [ 223.535473][ T6255] path_mount+0x5bc/0x1008 [ 223.536183][ T6255] __arm64_sys_mount+0x514/0x5f0 [ 223.536929][ T6255] invoke_syscall+0x98/0x2b0 [ 223.537699][ T6255] el0_svc_common+0x138/0x258 [ 223.538397][ T6255] do_el0_svc+0x58/0x13c [ 223.539061][ T6255] el0_svc+0x78/0x1d0 [ 223.539730][ T6255] el0t_64_sync_handler+0xcc/0xe4 [ 223.540513][ T6255] el0t_64_sync+0x1a0/0x1a4 [ 223.542666][ T6255] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.544679][ T6255] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.734892][ T6257] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.736220][ T6257] CPU: 1 PID: 6257 Comm: syz.1.654 Not tainted syzkaller #0 [ 223.737450][ T6257] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.739050][ T6257] Call trace: [ 223.739635][ T6257] dump_backtrace+0x0/0x458 [ 223.740375][ T6257] show_stack+0x2c/0x3c [ 223.741022][ T6257] __dump_stack+0x30/0x40 [ 223.741693][ T6257] dump_stack_lvl+0xf4/0x15c [ 223.742433][ T6257] dump_stack+0x1c/0x5c [ 223.743051][ T6257] sysfs_create_dir_ns+0x244/0x264 [ 223.743835][ T6257] kobject_add_internal+0x5ac/0xc3c [ 223.744684][ T6257] kobject_init_and_add+0x124/0x190 [ 223.745578][ T6257] gfs2_sys_fs_add+0x200/0x41c [ 223.746378][ T6257] gfs2_fill_super+0xddc/0x1a18 [ 223.747145][ T6257] get_tree_bdev+0x358/0x544 [ 223.747877][ T6257] gfs2_get_tree+0x54/0x1b4 [ 223.748534][ T6257] vfs_get_tree+0x90/0x274 [ 223.749211][ T6257] do_new_mount+0x228/0x810 [ 223.749839][ T6257] path_mount+0x5bc/0x1008 [ 223.750543][ T6257] __arm64_sys_mount+0x514/0x5f0 [ 223.751388][ T6257] invoke_syscall+0x98/0x2b0 [ 223.752058][ T6257] el0_svc_common+0x138/0x258 [ 223.752823][ T6257] do_el0_svc+0x58/0x13c [ 223.753444][ T6257] el0_svc+0x78/0x1d0 [ 223.754018][ T6257] el0t_64_sync_handler+0xcc/0xe4 [ 223.754756][ T6257] el0t_64_sync+0x1a0/0x1a4 [ 223.755666][ T6257] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.757787][ T6257] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.895851][ T6259] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.896980][ T6259] CPU: 1 PID: 6259 Comm: syz.1.655 Not tainted syzkaller #0 [ 223.898344][ T6259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.899934][ T6259] Call trace: [ 223.900517][ T6259] dump_backtrace+0x0/0x458 [ 223.901272][ T6259] show_stack+0x2c/0x3c [ 223.901968][ T6259] __dump_stack+0x30/0x40 [ 223.902638][ T6259] dump_stack_lvl+0xf4/0x15c [ 223.903254][ T6259] dump_stack+0x1c/0x5c [ 223.903988][ T6259] sysfs_create_dir_ns+0x244/0x264 [ 223.904852][ T6259] kobject_add_internal+0x5ac/0xc3c [ 223.905692][ T6259] kobject_init_and_add+0x124/0x190 [ 223.906533][ T6259] gfs2_sys_fs_add+0x200/0x41c [ 223.907311][ T6259] gfs2_fill_super+0xddc/0x1a18 [ 223.908079][ T6259] get_tree_bdev+0x358/0x544 [ 223.908843][ T6259] gfs2_get_tree+0x54/0x1b4 [ 223.909508][ T6259] vfs_get_tree+0x90/0x274 [ 223.910158][ T6259] do_new_mount+0x228/0x810 [ 223.910858][ T6259] path_mount+0x5bc/0x1008 [ 223.911537][ T6259] __arm64_sys_mount+0x514/0x5f0 [ 223.912296][ T6259] invoke_syscall+0x98/0x2b0 [ 223.912947][ T6259] el0_svc_common+0x138/0x258 [ 223.913662][ T6259] do_el0_svc+0x58/0x13c [ 223.914281][ T6259] el0_svc+0x78/0x1d0 [ 223.914874][ T6259] el0t_64_sync_handler+0xcc/0xe4 [ 223.915641][ T6259] el0t_64_sync+0x1a0/0x1a4 [ 223.916475][ T6259] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.918566][ T6259] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.061498][ T6261] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.062796][ T6261] CPU: 0 PID: 6261 Comm: syz.1.656 Not tainted syzkaller #0 [ 224.063955][ T6261] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.065483][ T6261] Call trace: [ 224.065949][ T6261] dump_backtrace+0x0/0x458 [ 224.066654][ T6261] show_stack+0x2c/0x3c [ 224.067350][ T6261] __dump_stack+0x30/0x40 [ 224.068102][ T6261] dump_stack_lvl+0xf4/0x15c [ 224.068820][ T6261] dump_stack+0x1c/0x5c [ 224.069460][ T6261] sysfs_create_dir_ns+0x244/0x264 [ 224.070254][ T6261] kobject_add_internal+0x5ac/0xc3c [ 224.071117][ T6261] kobject_init_and_add+0x124/0x190 [ 224.071895][ T6261] gfs2_sys_fs_add+0x200/0x41c [ 224.072631][ T6261] gfs2_fill_super+0xddc/0x1a18 [ 224.073364][ T6261] get_tree_bdev+0x358/0x544 [ 224.074183][ T6261] gfs2_get_tree+0x54/0x1b4 [ 224.074997][ T6261] vfs_get_tree+0x90/0x274 [ 224.075743][ T6261] do_new_mount+0x228/0x810 [ 224.076524][ T6261] path_mount+0x5bc/0x1008 [ 224.077336][ T6261] __arm64_sys_mount+0x514/0x5f0 [ 224.078119][ T6261] invoke_syscall+0x98/0x2b0 [ 224.078944][ T6261] el0_svc_common+0x138/0x258 [ 224.079708][ T6261] do_el0_svc+0x58/0x13c [ 224.080413][ T6261] el0_svc+0x78/0x1d0 [ 224.081072][ T6261] el0t_64_sync_handler+0xcc/0xe4 [ 224.081899][ T6261] el0t_64_sync+0x1a0/0x1a4 [ 224.084219][ T6261] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.086157][ T6261] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.250298][ T6263] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.251543][ T6263] CPU: 1 PID: 6263 Comm: syz.1.657 Not tainted syzkaller #0 [ 224.252714][ T6263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.254315][ T6263] Call trace: [ 224.254879][ T6263] dump_backtrace+0x0/0x458 [ 224.255577][ T6263] show_stack+0x2c/0x3c [ 224.256226][ T6263] __dump_stack+0x30/0x40 [ 224.256918][ T6263] dump_stack_lvl+0xf4/0x15c [ 224.257774][ T6263] dump_stack+0x1c/0x5c [ 224.258517][ T6263] sysfs_create_dir_ns+0x244/0x264 [ 224.259358][ T6263] kobject_add_internal+0x5ac/0xc3c [ 224.260267][ T6263] kobject_init_and_add+0x124/0x190 [ 224.261141][ T6263] gfs2_sys_fs_add+0x200/0x41c [ 224.261963][ T6263] gfs2_fill_super+0xddc/0x1a18 [ 224.262716][ T6263] get_tree_bdev+0x358/0x544 [ 224.263468][ T6263] gfs2_get_tree+0x54/0x1b4 [ 224.264160][ T6263] vfs_get_tree+0x90/0x274 [ 224.264872][ T6263] do_new_mount+0x228/0x810 [ 224.265567][ T6263] path_mount+0x5bc/0x1008 [ 224.266218][ T6263] __arm64_sys_mount+0x514/0x5f0 [ 224.267025][ T6263] invoke_syscall+0x98/0x2b0 [ 224.267752][ T6263] el0_svc_common+0x138/0x258 [ 224.268608][ T6263] do_el0_svc+0x58/0x13c [ 224.269334][ T6263] el0_svc+0x78/0x1d0 [ 224.269946][ T6263] el0t_64_sync_handler+0xcc/0xe4 [ 224.270748][ T6263] el0t_64_sync+0x1a0/0x1a4 [ 224.272949][ T6263] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.274910][ T6263] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.414213][ T6265] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.415434][ T6265] CPU: 1 PID: 6265 Comm: syz.1.658 Not tainted syzkaller #0 [ 224.416487][ T6265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.418139][ T6265] Call trace: [ 224.418701][ T6265] dump_backtrace+0x0/0x458 [ 224.419445][ T6265] show_stack+0x2c/0x3c [ 224.420051][ T6265] __dump_stack+0x30/0x40 [ 224.420791][ T6265] dump_stack_lvl+0xf4/0x15c [ 224.421483][ T6265] dump_stack+0x1c/0x5c [ 224.422076][ T6265] sysfs_create_dir_ns+0x244/0x264 [ 224.422834][ T6265] kobject_add_internal+0x5ac/0xc3c [ 224.423727][ T6265] kobject_init_and_add+0x124/0x190 [ 224.424517][ T6265] gfs2_sys_fs_add+0x200/0x41c [ 224.425337][ T6265] gfs2_fill_super+0xddc/0x1a18 [ 224.426152][ T6265] get_tree_bdev+0x358/0x544 [ 224.426929][ T6265] gfs2_get_tree+0x54/0x1b4 [ 224.427657][ T6265] vfs_get_tree+0x90/0x274 [ 224.428421][ T6265] do_new_mount+0x228/0x810 [ 224.429152][ T6265] path_mount+0x5bc/0x1008 [ 224.429864][ T6265] __arm64_sys_mount+0x514/0x5f0 [ 224.430621][ T6265] invoke_syscall+0x98/0x2b0 [ 224.431323][ T6265] el0_svc_common+0x138/0x258 [ 224.432038][ T6265] do_el0_svc+0x58/0x13c [ 224.432663][ T6265] el0_svc+0x78/0x1d0 [ 224.433297][ T6265] el0t_64_sync_handler+0xcc/0xe4 [ 224.434178][ T6265] el0t_64_sync+0x1a0/0x1a4 [ 224.435176][ T6265] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.437221][ T6265] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.620123][ T6267] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.621343][ T6267] CPU: 0 PID: 6267 Comm: syz.1.659 Not tainted syzkaller #0 [ 224.622510][ T6267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.624102][ T6267] Call trace: [ 224.624659][ T6267] dump_backtrace+0x0/0x458 [ 224.625399][ T6267] show_stack+0x2c/0x3c [ 224.626083][ T6267] __dump_stack+0x30/0x40 [ 224.626843][ T6267] dump_stack_lvl+0xf4/0x15c [ 224.627637][ T6267] dump_stack+0x1c/0x5c [ 224.628303][ T6267] sysfs_create_dir_ns+0x244/0x264 [ 224.629094][ T6267] kobject_add_internal+0x5ac/0xc3c [ 224.629978][ T6267] kobject_init_and_add+0x124/0x190 [ 224.630822][ T6267] gfs2_sys_fs_add+0x200/0x41c [ 224.631616][ T6267] gfs2_fill_super+0xddc/0x1a18 [ 224.632376][ T6267] get_tree_bdev+0x358/0x544 [ 224.633090][ T6267] gfs2_get_tree+0x54/0x1b4 [ 224.633766][ T6267] vfs_get_tree+0x90/0x274 [ 224.634439][ T6267] do_new_mount+0x228/0x810 [ 224.635129][ T6267] path_mount+0x5bc/0x1008 [ 224.635805][ T6267] __arm64_sys_mount+0x514/0x5f0 [ 224.636567][ T6267] invoke_syscall+0x98/0x2b0 [ 224.637272][ T6267] el0_svc_common+0x138/0x258 [ 224.637942][ T6267] do_el0_svc+0x58/0x13c [ 224.638552][ T6267] el0_svc+0x78/0x1d0 [ 224.639135][ T6267] el0t_64_sync_handler+0xcc/0xe4 [ 224.639833][ T6267] el0t_64_sync+0x1a0/0x1a4 [ 224.641418][ T6267] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.643607][ T6267] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.783764][ T6269] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.784883][ T6269] CPU: 1 PID: 6269 Comm: syz.1.660 Not tainted syzkaller #0 [ 224.786024][ T6269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.787586][ T6269] Call trace: [ 224.788099][ T6269] dump_backtrace+0x0/0x458 [ 224.788816][ T6269] show_stack+0x2c/0x3c [ 224.789526][ T6269] __dump_stack+0x30/0x40 [ 224.790226][ T6269] dump_stack_lvl+0xf4/0x15c [ 224.791003][ T6269] dump_stack+0x1c/0x5c [ 224.791688][ T6269] sysfs_create_dir_ns+0x244/0x264 [ 224.792565][ T6269] kobject_add_internal+0x5ac/0xc3c [ 224.793383][ T6269] kobject_init_and_add+0x124/0x190 [ 224.794158][ T6269] gfs2_sys_fs_add+0x200/0x41c [ 224.794915][ T6269] gfs2_fill_super+0xddc/0x1a18 [ 224.795588][ T6269] get_tree_bdev+0x358/0x544 [ 224.796274][ T6269] gfs2_get_tree+0x54/0x1b4 [ 224.797107][ T6269] vfs_get_tree+0x90/0x274 [ 224.797820][ T6269] do_new_mount+0x228/0x810 [ 224.798557][ T6269] path_mount+0x5bc/0x1008 [ 224.799254][ T6269] __arm64_sys_mount+0x514/0x5f0 [ 224.800088][ T6269] invoke_syscall+0x98/0x2b0 [ 224.800834][ T6269] el0_svc_common+0x138/0x258 [ 224.801561][ T6269] do_el0_svc+0x58/0x13c [ 224.802261][ T6269] el0_svc+0x78/0x1d0 [ 224.803000][ T6269] el0t_64_sync_handler+0xcc/0xe4 [ 224.803786][ T6269] el0t_64_sync+0x1a0/0x1a4 [ 224.804817][ T6269] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.807042][ T6269] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.970935][ T6271] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.972425][ T6271] CPU: 1 PID: 6271 Comm: syz.1.661 Not tainted syzkaller #0 [ 224.973557][ T6271] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.975179][ T6271] Call trace: [ 224.975675][ T6271] dump_backtrace+0x0/0x458 [ 224.976338][ T6271] show_stack+0x2c/0x3c [ 224.977075][ T6271] __dump_stack+0x30/0x40 [ 224.977835][ T6271] dump_stack_lvl+0xf4/0x15c [ 224.978623][ T6271] dump_stack+0x1c/0x5c [ 224.979267][ T6271] sysfs_create_dir_ns+0x244/0x264 [ 224.980055][ T6271] kobject_add_internal+0x5ac/0xc3c [ 224.980904][ T6271] kobject_init_and_add+0x124/0x190 [ 224.981835][ T6271] gfs2_sys_fs_add+0x200/0x41c [ 224.982681][ T6271] gfs2_fill_super+0xddc/0x1a18 [ 224.983450][ T6271] get_tree_bdev+0x358/0x544 [ 224.984173][ T6271] gfs2_get_tree+0x54/0x1b4 [ 224.984815][ T6271] vfs_get_tree+0x90/0x274 [ 224.985440][ T6271] do_new_mount+0x228/0x810 [ 224.986125][ T6271] path_mount+0x5bc/0x1008 [ 224.986849][ T6271] __arm64_sys_mount+0x514/0x5f0 [ 224.987578][ T6271] invoke_syscall+0x98/0x2b0 [ 224.988258][ T6271] el0_svc_common+0x138/0x258 [ 224.988962][ T6271] do_el0_svc+0x58/0x13c [ 224.989625][ T6271] el0_svc+0x78/0x1d0 [ 224.990221][ T6271] el0t_64_sync_handler+0xcc/0xe4 [ 224.991017][ T6271] el0t_64_sync+0x1a0/0x1a4 [ 224.992130][ T6271] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.994202][ T6271] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.175869][ T6273] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.177233][ T6273] CPU: 1 PID: 6273 Comm: syz.1.662 Not tainted syzkaller #0 [ 225.178430][ T6273] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.179966][ T6273] Call trace: [ 225.180507][ T6273] dump_backtrace+0x0/0x458 [ 225.181202][ T6273] show_stack+0x2c/0x3c [ 225.181848][ T6273] __dump_stack+0x30/0x40 [ 225.182531][ T6273] dump_stack_lvl+0xf4/0x15c [ 225.183259][ T6273] dump_stack+0x1c/0x5c [ 225.183952][ T6273] sysfs_create_dir_ns+0x244/0x264 [ 225.184731][ T6273] kobject_add_internal+0x5ac/0xc3c [ 225.185508][ T6273] kobject_init_and_add+0x124/0x190 [ 225.186250][ T6273] gfs2_sys_fs_add+0x200/0x41c [ 225.186981][ T6273] gfs2_fill_super+0xddc/0x1a18 [ 225.187663][ T6273] get_tree_bdev+0x358/0x544 [ 225.188440][ T6273] gfs2_get_tree+0x54/0x1b4 [ 225.189196][ T6273] vfs_get_tree+0x90/0x274 [ 225.189914][ T6273] do_new_mount+0x228/0x810 [ 225.190656][ T6273] path_mount+0x5bc/0x1008 [ 225.191366][ T6273] __arm64_sys_mount+0x514/0x5f0 [ 225.192111][ T6273] invoke_syscall+0x98/0x2b0 [ 225.192788][ T6273] el0_svc_common+0x138/0x258 [ 225.193493][ T6273] do_el0_svc+0x58/0x13c [ 225.194160][ T6273] el0_svc+0x78/0x1d0 [ 225.194825][ T6273] el0t_64_sync_handler+0xcc/0xe4 [ 225.195610][ T6273] el0t_64_sync+0x1a0/0x1a4 [ 225.196884][ T6273] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.199176][ T6273] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.340216][ T6275] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.341476][ T6275] CPU: 0 PID: 6275 Comm: syz.1.663 Not tainted syzkaller #0 [ 225.342661][ T6275] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.344269][ T6275] Call trace: [ 225.344749][ T6275] dump_backtrace+0x0/0x458 [ 225.345447][ T6275] show_stack+0x2c/0x3c [ 225.346157][ T6275] __dump_stack+0x30/0x40 [ 225.346901][ T6275] dump_stack_lvl+0xf4/0x15c [ 225.347649][ T6275] dump_stack+0x1c/0x5c [ 225.348220][ T6275] sysfs_create_dir_ns+0x244/0x264 [ 225.349025][ T6275] kobject_add_internal+0x5ac/0xc3c [ 225.349807][ T6275] kobject_init_and_add+0x124/0x190 [ 225.350681][ T6275] gfs2_sys_fs_add+0x200/0x41c [ 225.351367][ T6275] gfs2_fill_super+0xddc/0x1a18 [ 225.352171][ T6275] get_tree_bdev+0x358/0x544 [ 225.352949][ T6275] gfs2_get_tree+0x54/0x1b4 [ 225.353724][ T6275] vfs_get_tree+0x90/0x274 [ 225.354487][ T6275] do_new_mount+0x228/0x810 [ 225.355285][ T6275] path_mount+0x5bc/0x1008 [ 225.356071][ T6275] __arm64_sys_mount+0x514/0x5f0 [ 225.356831][ T6275] invoke_syscall+0x98/0x2b0 [ 225.357561][ T6275] el0_svc_common+0x138/0x258 [ 225.358325][ T6275] do_el0_svc+0x58/0x13c [ 225.358983][ T6275] el0_svc+0x78/0x1d0 [ 225.359588][ T6275] el0t_64_sync_handler+0xcc/0xe4 [ 225.360303][ T6275] el0t_64_sync+0x1a0/0x1a4 [ 225.362595][ T6275] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.364634][ T6275] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.530212][ T6277] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.531407][ T6277] CPU: 0 PID: 6277 Comm: syz.1.664 Not tainted syzkaller #0 [ 225.532521][ T6277] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.534057][ T6277] Call trace: [ 225.534509][ T6277] dump_backtrace+0x0/0x458 [ 225.535191][ T6277] show_stack+0x2c/0x3c [ 225.535813][ T6277] __dump_stack+0x30/0x40 [ 225.536523][ T6277] dump_stack_lvl+0xf4/0x15c [ 225.537266][ T6277] dump_stack+0x1c/0x5c [ 225.537974][ T6277] sysfs_create_dir_ns+0x244/0x264 [ 225.538794][ T6277] kobject_add_internal+0x5ac/0xc3c [ 225.539663][ T6277] kobject_init_and_add+0x124/0x190 [ 225.540582][ T6277] gfs2_sys_fs_add+0x200/0x41c [ 225.541397][ T6277] gfs2_fill_super+0xddc/0x1a18 [ 225.542199][ T6277] get_tree_bdev+0x358/0x544 [ 225.542974][ T6277] gfs2_get_tree+0x54/0x1b4 [ 225.543700][ T6277] vfs_get_tree+0x90/0x274 [ 225.544454][ T6277] do_new_mount+0x228/0x810 [ 225.545216][ T6277] path_mount+0x5bc/0x1008 [ 225.545907][ T6277] __arm64_sys_mount+0x514/0x5f0 [ 225.546737][ T6277] invoke_syscall+0x98/0x2b0 [ 225.547522][ T6277] el0_svc_common+0x138/0x258 [ 225.548226][ T6277] do_el0_svc+0x58/0x13c [ 225.548864][ T6277] el0_svc+0x78/0x1d0 [ 225.549482][ T6277] el0t_64_sync_handler+0xcc/0xe4 [ 225.550255][ T6277] el0t_64_sync+0x1a0/0x1a4 [ 225.552354][ T6277] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.554286][ T6277] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.723419][ T6279] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.724666][ T6279] CPU: 0 PID: 6279 Comm: syz.1.665 Not tainted syzkaller #0 [ 225.725795][ T6279] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.727458][ T6279] Call trace: [ 225.727951][ T6279] dump_backtrace+0x0/0x458 [ 225.728660][ T6279] show_stack+0x2c/0x3c [ 225.729276][ T6279] __dump_stack+0x30/0x40 [ 225.730053][ T6279] dump_stack_lvl+0xf4/0x15c [ 225.730811][ T6279] dump_stack+0x1c/0x5c [ 225.731482][ T6279] sysfs_create_dir_ns+0x244/0x264 [ 225.732326][ T6279] kobject_add_internal+0x5ac/0xc3c [ 225.733095][ T6279] kobject_init_and_add+0x124/0x190 [ 225.733956][ T6279] gfs2_sys_fs_add+0x200/0x41c [ 225.734741][ T6279] gfs2_fill_super+0xddc/0x1a18 [ 225.735530][ T6279] get_tree_bdev+0x358/0x544 [ 225.736192][ T6279] gfs2_get_tree+0x54/0x1b4 [ 225.736845][ T6279] vfs_get_tree+0x90/0x274 [ 225.737528][ T6279] do_new_mount+0x228/0x810 [ 225.738226][ T6279] path_mount+0x5bc/0x1008 [ 225.738986][ T6279] __arm64_sys_mount+0x514/0x5f0 [ 225.739813][ T6279] invoke_syscall+0x98/0x2b0 [ 225.740531][ T6279] el0_svc_common+0x138/0x258 [ 225.741262][ T6279] do_el0_svc+0x58/0x13c [ 225.741870][ T6279] el0_svc+0x78/0x1d0 [ 225.742509][ T6279] el0t_64_sync_handler+0xcc/0xe4 [ 225.743325][ T6279] el0t_64_sync+0x1a0/0x1a4 [ 225.745395][ T6279] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.747379][ T6279] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.885017][ T6281] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.886208][ T6281] CPU: 1 PID: 6281 Comm: syz.1.666 Not tainted syzkaller #0 [ 225.887309][ T6281] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.888680][ T6281] Call trace: [ 225.889221][ T6281] dump_backtrace+0x0/0x458 [ 225.889963][ T6281] show_stack+0x2c/0x3c [ 225.890654][ T6281] __dump_stack+0x30/0x40 [ 225.891352][ T6281] dump_stack_lvl+0xf4/0x15c [ 225.892078][ T6281] dump_stack+0x1c/0x5c [ 225.892810][ T6281] sysfs_create_dir_ns+0x244/0x264 [ 225.893632][ T6281] kobject_add_internal+0x5ac/0xc3c [ 225.894468][ T6281] kobject_init_and_add+0x124/0x190 [ 225.895292][ T6281] gfs2_sys_fs_add+0x200/0x41c [ 225.896012][ T6281] gfs2_fill_super+0xddc/0x1a18 [ 225.896826][ T6281] get_tree_bdev+0x358/0x544 [ 225.897569][ T6281] gfs2_get_tree+0x54/0x1b4 [ 225.898362][ T6281] vfs_get_tree+0x90/0x274 [ 225.899147][ T6281] do_new_mount+0x228/0x810 [ 225.899877][ T6281] path_mount+0x5bc/0x1008 [ 225.900617][ T6281] __arm64_sys_mount+0x514/0x5f0 [ 225.901425][ T6281] invoke_syscall+0x98/0x2b0 [ 225.902173][ T6281] el0_svc_common+0x138/0x258 [ 225.902887][ T6281] do_el0_svc+0x58/0x13c [ 225.903559][ T6281] el0_svc+0x78/0x1d0 [ 225.904184][ T6281] el0t_64_sync_handler+0xcc/0xe4 [ 225.905043][ T6281] el0t_64_sync+0x1a0/0x1a4 [ 225.906570][ T6281] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.908733][ T6281] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.050238][ T6283] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.051417][ T6283] CPU: 0 PID: 6283 Comm: syz.1.667 Not tainted syzkaller #0 [ 226.052557][ T6283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.054196][ T6283] Call trace: [ 226.054714][ T6283] dump_backtrace+0x0/0x458 [ 226.055429][ T6283] show_stack+0x2c/0x3c [ 226.056062][ T6283] __dump_stack+0x30/0x40 [ 226.056729][ T6283] dump_stack_lvl+0xf4/0x15c [ 226.057514][ T6283] dump_stack+0x1c/0x5c [ 226.058143][ T6283] sysfs_create_dir_ns+0x244/0x264 [ 226.058881][ T6283] kobject_add_internal+0x5ac/0xc3c [ 226.059614][ T6283] kobject_init_and_add+0x124/0x190 [ 226.060358][ T6283] gfs2_sys_fs_add+0x200/0x41c [ 226.061060][ T6283] gfs2_fill_super+0xddc/0x1a18 [ 226.061801][ T6283] get_tree_bdev+0x358/0x544 [ 226.062563][ T6283] gfs2_get_tree+0x54/0x1b4 [ 226.063350][ T6283] vfs_get_tree+0x90/0x274 [ 226.064086][ T6283] do_new_mount+0x228/0x810 [ 226.064917][ T6283] path_mount+0x5bc/0x1008 [ 226.065668][ T6283] __arm64_sys_mount+0x514/0x5f0 [ 226.066429][ T6283] invoke_syscall+0x98/0x2b0 [ 226.067145][ T6283] el0_svc_common+0x138/0x258 [ 226.067916][ T6283] do_el0_svc+0x58/0x13c [ 226.068534][ T6283] el0_svc+0x78/0x1d0 [ 226.069176][ T6283] el0t_64_sync_handler+0xcc/0xe4 [ 226.069933][ T6283] el0t_64_sync+0x1a0/0x1a4 [ 226.072086][ T6283] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.074079][ T6283] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.240570][ T6285] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.241699][ T6285] CPU: 1 PID: 6285 Comm: syz.1.668 Not tainted syzkaller #0 [ 226.242862][ T6285] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.244539][ T6285] Call trace: [ 226.245072][ T6285] dump_backtrace+0x0/0x458 [ 226.245830][ T6285] show_stack+0x2c/0x3c [ 226.246539][ T6285] __dump_stack+0x30/0x40 [ 226.247284][ T6285] dump_stack_lvl+0xf4/0x15c [ 226.247998][ T6285] dump_stack+0x1c/0x5c [ 226.248667][ T6285] sysfs_create_dir_ns+0x244/0x264 [ 226.249545][ T6285] kobject_add_internal+0x5ac/0xc3c [ 226.250395][ T6285] kobject_init_and_add+0x124/0x190 [ 226.251239][ T6285] gfs2_sys_fs_add+0x200/0x41c [ 226.252003][ T6285] gfs2_fill_super+0xddc/0x1a18 [ 226.252801][ T6285] get_tree_bdev+0x358/0x544 [ 226.253544][ T6285] gfs2_get_tree+0x54/0x1b4 [ 226.254251][ T6285] vfs_get_tree+0x90/0x274 [ 226.254964][ T6285] do_new_mount+0x228/0x810 [ 226.255723][ T6285] path_mount+0x5bc/0x1008 [ 226.256461][ T6285] __arm64_sys_mount+0x514/0x5f0 [ 226.257245][ T6285] invoke_syscall+0x98/0x2b0 [ 226.258036][ T6285] el0_svc_common+0x138/0x258 [ 226.258771][ T6285] do_el0_svc+0x58/0x13c [ 226.259438][ T6285] el0_svc+0x78/0x1d0 [ 226.260060][ T6285] el0t_64_sync_handler+0xcc/0xe4 [ 226.260812][ T6285] el0t_64_sync+0x1a0/0x1a4 [ 226.262843][ T6285] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.264724][ T6285] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:46 executed programs: 655 [ 226.400354][ T6287] set_capacity_and_notify: 16 callbacks suppressed [ 226.400364][ T6287] loop1: detected capacity change from 0 to 32768 [ 226.450278][ T6287] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.451466][ T6287] CPU: 1 PID: 6287 Comm: syz.1.669 Not tainted syzkaller #0 [ 226.452696][ T6287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.454411][ T6287] Call trace: [ 226.454963][ T6287] dump_backtrace+0x0/0x458 [ 226.455681][ T6287] show_stack+0x2c/0x3c [ 226.456362][ T6287] __dump_stack+0x30/0x40 [ 226.457112][ T6287] dump_stack_lvl+0xf4/0x15c [ 226.457871][ T6287] dump_stack+0x1c/0x5c [ 226.458560][ T6287] sysfs_create_dir_ns+0x244/0x264 [ 226.459406][ T6287] kobject_add_internal+0x5ac/0xc3c [ 226.460219][ T6287] kobject_init_and_add+0x124/0x190 [ 226.461063][ T6287] gfs2_sys_fs_add+0x200/0x41c [ 226.461833][ T6287] gfs2_fill_super+0xddc/0x1a18 [ 226.462696][ T6287] get_tree_bdev+0x358/0x544 [ 226.463485][ T6287] gfs2_get_tree+0x54/0x1b4 [ 226.464217][ T6287] vfs_get_tree+0x90/0x274 [ 226.464906][ T6287] do_new_mount+0x228/0x810 [ 226.465687][ T6287] path_mount+0x5bc/0x1008 [ 226.466352][ T6287] __arm64_sys_mount+0x514/0x5f0 [ 226.467114][ T6287] invoke_syscall+0x98/0x2b0 [ 226.467880][ T6287] el0_svc_common+0x138/0x258 [ 226.468562][ T6287] do_el0_svc+0x58/0x13c [ 226.469205][ T6287] el0_svc+0x78/0x1d0 [ 226.469825][ T6287] el0t_64_sync_handler+0xcc/0xe4 [ 226.470682][ T6287] el0t_64_sync+0x1a0/0x1a4 [ 226.472023][ T6287] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.474025][ T6287] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.664681][ T6289] loop1: detected capacity change from 0 to 32768 [ 226.672259][ T6289] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.673386][ T6289] CPU: 0 PID: 6289 Comm: syz.1.670 Not tainted syzkaller #0 [ 226.674473][ T6289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.676007][ T6289] Call trace: [ 226.676540][ T6289] dump_backtrace+0x0/0x458 [ 226.677307][ T6289] show_stack+0x2c/0x3c [ 226.678022][ T6289] __dump_stack+0x30/0x40 [ 226.678772][ T6289] dump_stack_lvl+0xf4/0x15c [ 226.679508][ T6289] dump_stack+0x1c/0x5c [ 226.680176][ T6289] sysfs_create_dir_ns+0x244/0x264 [ 226.680998][ T6289] kobject_add_internal+0x5ac/0xc3c [ 226.681830][ T6289] kobject_init_and_add+0x124/0x190 [ 226.682637][ T6289] gfs2_sys_fs_add+0x200/0x41c [ 226.683426][ T6289] gfs2_fill_super+0xddc/0x1a18 [ 226.684272][ T6289] get_tree_bdev+0x358/0x544 [ 226.685016][ T6289] gfs2_get_tree+0x54/0x1b4 [ 226.685731][ T6289] vfs_get_tree+0x90/0x274 [ 226.686471][ T6289] do_new_mount+0x228/0x810 [ 226.687237][ T6289] path_mount+0x5bc/0x1008 [ 226.688034][ T6289] __arm64_sys_mount+0x514/0x5f0 [ 226.688840][ T6289] invoke_syscall+0x98/0x2b0 [ 226.689603][ T6289] el0_svc_common+0x138/0x258 [ 226.690355][ T6289] do_el0_svc+0x58/0x13c [ 226.691039][ T6289] el0_svc+0x78/0x1d0 [ 226.691771][ T6289] el0t_64_sync_handler+0xcc/0xe4 [ 226.692588][ T6289] el0t_64_sync+0x1a0/0x1a4 [ 226.694309][ T6289] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.696279][ T6289] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.823108][ T6291] loop1: detected capacity change from 0 to 32768 [ 226.880272][ T6291] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.881553][ T6291] CPU: 1 PID: 6291 Comm: syz.1.671 Not tainted syzkaller #0 [ 226.882665][ T6291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.884350][ T6291] Call trace: [ 226.884896][ T6291] dump_backtrace+0x0/0x458 [ 226.885592][ T6291] show_stack+0x2c/0x3c [ 226.886324][ T6291] __dump_stack+0x30/0x40 [ 226.887073][ T6291] dump_stack_lvl+0xf4/0x15c [ 226.887830][ T6291] dump_stack+0x1c/0x5c [ 226.888447][ T6291] sysfs_create_dir_ns+0x244/0x264 [ 226.889248][ T6291] kobject_add_internal+0x5ac/0xc3c [ 226.890090][ T6291] kobject_init_and_add+0x124/0x190 [ 226.890889][ T6291] gfs2_sys_fs_add+0x200/0x41c [ 226.891595][ T6291] gfs2_fill_super+0xddc/0x1a18 [ 226.892310][ T6291] get_tree_bdev+0x358/0x544 [ 226.893101][ T6291] gfs2_get_tree+0x54/0x1b4 [ 226.893824][ T6291] vfs_get_tree+0x90/0x274 [ 226.894563][ T6291] do_new_mount+0x228/0x810 [ 226.895346][ T6291] path_mount+0x5bc/0x1008 [ 226.896056][ T6291] __arm64_sys_mount+0x514/0x5f0 [ 226.896856][ T6291] invoke_syscall+0x98/0x2b0 [ 226.897624][ T6291] el0_svc_common+0x138/0x258 [ 226.898432][ T6291] do_el0_svc+0x58/0x13c [ 226.899091][ T6291] el0_svc+0x78/0x1d0 [ 226.899669][ T6291] el0t_64_sync_handler+0xcc/0xe4 [ 226.900489][ T6291] el0t_64_sync+0x1a0/0x1a4 [ 226.901550][ T6291] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.903444][ T6291] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.033391][ T6293] loop1: detected capacity change from 0 to 32768 [ 227.083462][ T6293] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.084594][ T6293] CPU: 1 PID: 6293 Comm: syz.1.672 Not tainted syzkaller #0 [ 227.085732][ T6293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.087144][ T6293] Call trace: [ 227.087665][ T6293] dump_backtrace+0x0/0x458 [ 227.088278][ T6293] show_stack+0x2c/0x3c [ 227.088901][ T6293] __dump_stack+0x30/0x40 [ 227.089682][ T6293] dump_stack_lvl+0xf4/0x15c [ 227.090434][ T6293] dump_stack+0x1c/0x5c [ 227.091172][ T6293] sysfs_create_dir_ns+0x244/0x264 [ 227.092016][ T6293] kobject_add_internal+0x5ac/0xc3c [ 227.092906][ T6293] kobject_init_and_add+0x124/0x190 [ 227.093748][ T6293] gfs2_sys_fs_add+0x200/0x41c [ 227.094482][ T6293] gfs2_fill_super+0xddc/0x1a18 [ 227.095244][ T6293] get_tree_bdev+0x358/0x544 [ 227.095972][ T6293] gfs2_get_tree+0x54/0x1b4 [ 227.096755][ T6293] vfs_get_tree+0x90/0x274 [ 227.097527][ T6293] do_new_mount+0x228/0x810 [ 227.098306][ T6293] path_mount+0x5bc/0x1008 [ 227.099043][ T6293] __arm64_sys_mount+0x514/0x5f0 [ 227.099841][ T6293] invoke_syscall+0x98/0x2b0 [ 227.100576][ T6293] el0_svc_common+0x138/0x258 [ 227.101300][ T6293] do_el0_svc+0x58/0x13c [ 227.101993][ T6293] el0_svc+0x78/0x1d0 [ 227.102620][ T6293] el0t_64_sync_handler+0xcc/0xe4 [ 227.103410][ T6293] el0t_64_sync+0x1a0/0x1a4 [ 227.105524][ T6293] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.107587][ T6293] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.244005][ T6295] loop1: detected capacity change from 0 to 32768 [ 227.251290][ T6295] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.252449][ T6295] CPU: 0 PID: 6295 Comm: syz.1.673 Not tainted syzkaller #0 [ 227.253496][ T6295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.254998][ T6295] Call trace: [ 227.255425][ T6295] dump_backtrace+0x0/0x458 [ 227.256080][ T6295] show_stack+0x2c/0x3c [ 227.256651][ T6295] __dump_stack+0x30/0x40 [ 227.257402][ T6295] dump_stack_lvl+0xf4/0x15c [ 227.258190][ T6295] dump_stack+0x1c/0x5c [ 227.258900][ T6295] sysfs_create_dir_ns+0x244/0x264 [ 227.259725][ T6295] kobject_add_internal+0x5ac/0xc3c [ 227.260571][ T6295] kobject_init_and_add+0x124/0x190 [ 227.261464][ T6295] gfs2_sys_fs_add+0x200/0x41c [ 227.262218][ T6295] gfs2_fill_super+0xddc/0x1a18 [ 227.262984][ T6295] get_tree_bdev+0x358/0x544 [ 227.263782][ T6295] gfs2_get_tree+0x54/0x1b4 [ 227.264585][ T6295] vfs_get_tree+0x90/0x274 [ 227.265331][ T6295] do_new_mount+0x228/0x810 [ 227.266129][ T6295] path_mount+0x5bc/0x1008 [ 227.266893][ T6295] __arm64_sys_mount+0x514/0x5f0 [ 227.267651][ T6295] invoke_syscall+0x98/0x2b0 [ 227.268347][ T6295] el0_svc_common+0x138/0x258 [ 227.269077][ T6295] do_el0_svc+0x58/0x13c [ 227.269741][ T6295] el0_svc+0x78/0x1d0 [ 227.270405][ T6295] el0t_64_sync_handler+0xcc/0xe4 [ 227.271226][ T6295] el0t_64_sync+0x1a0/0x1a4 [ 227.273224][ T6295] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.275196][ T6295] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.411310][ T6297] loop1: detected capacity change from 0 to 32768 [ 227.418442][ T6297] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.419690][ T6297] CPU: 1 PID: 6297 Comm: syz.1.674 Not tainted syzkaller #0 [ 227.420859][ T6297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.422525][ T6297] Call trace: [ 227.423032][ T6297] dump_backtrace+0x0/0x458 [ 227.423746][ T6297] show_stack+0x2c/0x3c [ 227.424413][ T6297] __dump_stack+0x30/0x40 [ 227.425179][ T6297] dump_stack_lvl+0xf4/0x15c [ 227.425906][ T6297] dump_stack+0x1c/0x5c [ 227.426561][ T6297] sysfs_create_dir_ns+0x244/0x264 [ 227.427352][ T6297] kobject_add_internal+0x5ac/0xc3c [ 227.428219][ T6297] kobject_init_and_add+0x124/0x190 [ 227.429015][ T6297] gfs2_sys_fs_add+0x200/0x41c [ 227.429721][ T6297] gfs2_fill_super+0xddc/0x1a18 [ 227.430432][ T6297] get_tree_bdev+0x358/0x544 [ 227.431157][ T6297] gfs2_get_tree+0x54/0x1b4 [ 227.431907][ T6297] vfs_get_tree+0x90/0x274 [ 227.432596][ T6297] do_new_mount+0x228/0x810 [ 227.433336][ T6297] path_mount+0x5bc/0x1008 [ 227.434081][ T6297] __arm64_sys_mount+0x514/0x5f0 [ 227.434904][ T6297] invoke_syscall+0x98/0x2b0 [ 227.435650][ T6297] el0_svc_common+0x138/0x258 [ 227.436387][ T6297] do_el0_svc+0x58/0x13c [ 227.437065][ T6297] el0_svc+0x78/0x1d0 [ 227.437738][ T6297] el0t_64_sync_handler+0xcc/0xe4 [ 227.438551][ T6297] el0t_64_sync+0x1a0/0x1a4 [ 227.439682][ T6297] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.441814][ T6297] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.578669][ T6299] loop1: detected capacity change from 0 to 32768 [ 227.586111][ T6299] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.587238][ T6299] CPU: 1 PID: 6299 Comm: syz.1.675 Not tainted syzkaller #0 [ 227.588393][ T6299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.590080][ T6299] Call trace: [ 227.590607][ T6299] dump_backtrace+0x0/0x458 [ 227.591343][ T6299] show_stack+0x2c/0x3c [ 227.591987][ T6299] __dump_stack+0x30/0x40 [ 227.592692][ T6299] dump_stack_lvl+0xf4/0x15c [ 227.593466][ T6299] dump_stack+0x1c/0x5c [ 227.594147][ T6299] sysfs_create_dir_ns+0x244/0x264 [ 227.594976][ T6299] kobject_add_internal+0x5ac/0xc3c [ 227.595901][ T6299] kobject_init_and_add+0x124/0x190 [ 227.596711][ T6299] gfs2_sys_fs_add+0x200/0x41c [ 227.597484][ T6299] gfs2_fill_super+0xddc/0x1a18 [ 227.598257][ T6299] get_tree_bdev+0x358/0x544 [ 227.598977][ T6299] gfs2_get_tree+0x54/0x1b4 [ 227.599713][ T6299] vfs_get_tree+0x90/0x274 [ 227.600442][ T6299] do_new_mount+0x228/0x810 [ 227.601149][ T6299] path_mount+0x5bc/0x1008 [ 227.601925][ T6299] __arm64_sys_mount+0x514/0x5f0 [ 227.602716][ T6299] invoke_syscall+0x98/0x2b0 [ 227.603501][ T6299] el0_svc_common+0x138/0x258 [ 227.604292][ T6299] do_el0_svc+0x58/0x13c [ 227.605020][ T6299] el0_svc+0x78/0x1d0 [ 227.605719][ T6299] el0t_64_sync_handler+0xcc/0xe4 [ 227.606629][ T6299] el0t_64_sync+0x1a0/0x1a4 [ 227.608767][ T6299] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.611227][ T6299] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.741217][ T6301] loop1: detected capacity change from 0 to 32768 [ 227.833586][ T6301] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.834822][ T6301] CPU: 0 PID: 6301 Comm: syz.1.676 Not tainted syzkaller #0 [ 227.835867][ T6301] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.837566][ T6301] Call trace: [ 227.838084][ T6301] dump_backtrace+0x0/0x458 [ 227.838838][ T6301] show_stack+0x2c/0x3c [ 227.839483][ T6301] __dump_stack+0x30/0x40 [ 227.840145][ T6301] dump_stack_lvl+0xf4/0x15c [ 227.840844][ T6301] dump_stack+0x1c/0x5c [ 227.841458][ T6301] sysfs_create_dir_ns+0x244/0x264 [ 227.842265][ T6301] kobject_add_internal+0x5ac/0xc3c [ 227.843174][ T6301] kobject_init_and_add+0x124/0x190 [ 227.843944][ T6301] gfs2_sys_fs_add+0x200/0x41c [ 227.844703][ T6301] gfs2_fill_super+0xddc/0x1a18 [ 227.845462][ T6301] get_tree_bdev+0x358/0x544 [ 227.846202][ T6301] gfs2_get_tree+0x54/0x1b4 [ 227.846907][ T6301] vfs_get_tree+0x90/0x274 [ 227.847597][ T6301] do_new_mount+0x228/0x810 [ 227.848297][ T6301] path_mount+0x5bc/0x1008 [ 227.848942][ T6301] __arm64_sys_mount+0x514/0x5f0 [ 227.849774][ T6301] invoke_syscall+0x98/0x2b0 [ 227.850480][ T6301] el0_svc_common+0x138/0x258 [ 227.851215][ T6301] do_el0_svc+0x58/0x13c [ 227.851953][ T6301] el0_svc+0x78/0x1d0 [ 227.852557][ T6301] el0t_64_sync_handler+0xcc/0xe4 [ 227.853286][ T6301] el0t_64_sync+0x1a0/0x1a4 [ 227.855446][ T6301] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.857465][ T6301] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.989201][ T6303] loop1: detected capacity change from 0 to 32768 [ 228.043305][ T6303] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.044491][ T6303] CPU: 1 PID: 6303 Comm: syz.1.677 Not tainted syzkaller #0 [ 228.045628][ T6303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.047346][ T6303] Call trace: [ 228.047848][ T6303] dump_backtrace+0x0/0x458 [ 228.048608][ T6303] show_stack+0x2c/0x3c [ 228.049285][ T6303] __dump_stack+0x30/0x40 [ 228.050018][ T6303] dump_stack_lvl+0xf4/0x15c [ 228.050770][ T6303] dump_stack+0x1c/0x5c [ 228.051451][ T6303] sysfs_create_dir_ns+0x244/0x264 [ 228.052259][ T6303] kobject_add_internal+0x5ac/0xc3c [ 228.053140][ T6303] kobject_init_and_add+0x124/0x190 [ 228.053971][ T6303] gfs2_sys_fs_add+0x200/0x41c [ 228.054758][ T6303] gfs2_fill_super+0xddc/0x1a18 [ 228.055598][ T6303] get_tree_bdev+0x358/0x544 [ 228.056382][ T6303] gfs2_get_tree+0x54/0x1b4 [ 228.057170][ T6303] vfs_get_tree+0x90/0x274 [ 228.057890][ T6303] do_new_mount+0x228/0x810 [ 228.058590][ T6303] path_mount+0x5bc/0x1008 [ 228.059306][ T6303] __arm64_sys_mount+0x514/0x5f0 [ 228.060150][ T6303] invoke_syscall+0x98/0x2b0 [ 228.060916][ T6303] el0_svc_common+0x138/0x258 [ 228.061647][ T6303] do_el0_svc+0x58/0x13c [ 228.062364][ T6303] el0_svc+0x78/0x1d0 [ 228.063009][ T6303] el0t_64_sync_handler+0xcc/0xe4 [ 228.063775][ T6303] el0t_64_sync+0x1a0/0x1a4 [ 228.066459][ T6303] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.068348][ T6303] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.210979][ T6305] loop1: detected capacity change from 0 to 32768 [ 228.215942][ T6305] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.217097][ T6305] CPU: 1 PID: 6305 Comm: syz.1.678 Not tainted syzkaller #0 [ 228.218208][ T6305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.219862][ T6305] Call trace: [ 228.220407][ T6305] dump_backtrace+0x0/0x458 [ 228.221172][ T6305] show_stack+0x2c/0x3c [ 228.221850][ T6305] __dump_stack+0x30/0x40 [ 228.222562][ T6305] dump_stack_lvl+0xf4/0x15c [ 228.223307][ T6305] dump_stack+0x1c/0x5c [ 228.223950][ T6305] sysfs_create_dir_ns+0x244/0x264 [ 228.224768][ T6305] kobject_add_internal+0x5ac/0xc3c [ 228.225577][ T6305] kobject_init_and_add+0x124/0x190 [ 228.226327][ T6305] gfs2_sys_fs_add+0x200/0x41c [ 228.227082][ T6305] gfs2_fill_super+0xddc/0x1a18 [ 228.227812][ T6305] get_tree_bdev+0x358/0x544 [ 228.228548][ T6305] gfs2_get_tree+0x54/0x1b4 [ 228.229327][ T6305] vfs_get_tree+0x90/0x274 [ 228.230103][ T6305] do_new_mount+0x228/0x810 [ 228.230866][ T6305] path_mount+0x5bc/0x1008 [ 228.231636][ T6305] __arm64_sys_mount+0x514/0x5f0 [ 228.232423][ T6305] invoke_syscall+0x98/0x2b0 [ 228.233153][ T6305] el0_svc_common+0x138/0x258 [ 228.233899][ T6305] do_el0_svc+0x58/0x13c [ 228.234543][ T6305] el0_svc+0x78/0x1d0 [ 228.235106][ T6305] el0t_64_sync_handler+0xcc/0xe4 [ 228.235780][ T6305] el0t_64_sync+0x1a0/0x1a4 [ 228.237971][ T6305] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.240201][ T6305] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.380655][ T6307] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.381892][ T6307] CPU: 0 PID: 6307 Comm: syz.1.679 Not tainted syzkaller #0 [ 228.383050][ T6307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.384600][ T6307] Call trace: [ 228.385124][ T6307] dump_backtrace+0x0/0x458 [ 228.385814][ T6307] show_stack+0x2c/0x3c [ 228.386448][ T6307] __dump_stack+0x30/0x40 [ 228.387160][ T6307] dump_stack_lvl+0xf4/0x15c [ 228.387825][ T6307] dump_stack+0x1c/0x5c [ 228.388536][ T6307] sysfs_create_dir_ns+0x244/0x264 [ 228.389377][ T6307] kobject_add_internal+0x5ac/0xc3c [ 228.390157][ T6307] kobject_init_and_add+0x124/0x190 [ 228.390987][ T6307] gfs2_sys_fs_add+0x200/0x41c [ 228.391871][ T6307] gfs2_fill_super+0xddc/0x1a18 [ 228.392659][ T6307] get_tree_bdev+0x358/0x544 [ 228.393408][ T6307] gfs2_get_tree+0x54/0x1b4 [ 228.394124][ T6307] vfs_get_tree+0x90/0x274 [ 228.394876][ T6307] do_new_mount+0x228/0x810 [ 228.395593][ T6307] path_mount+0x5bc/0x1008 [ 228.396360][ T6307] __arm64_sys_mount+0x514/0x5f0 [ 228.397202][ T6307] invoke_syscall+0x98/0x2b0 [ 228.397981][ T6307] el0_svc_common+0x138/0x258 [ 228.398716][ T6307] do_el0_svc+0x58/0x13c [ 228.399317][ T6307] el0_svc+0x78/0x1d0 [ 228.399973][ T6307] el0t_64_sync_handler+0xcc/0xe4 [ 228.400746][ T6307] el0t_64_sync+0x1a0/0x1a4 [ 228.401520][ T6307] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.403489][ T6307] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.615460][ T6309] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.616612][ T6309] CPU: 1 PID: 6309 Comm: syz.1.680 Not tainted syzkaller #0 [ 228.617742][ T6309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.619248][ T6309] Call trace: [ 228.619752][ T6309] dump_backtrace+0x0/0x458 [ 228.620459][ T6309] show_stack+0x2c/0x3c [ 228.621155][ T6309] __dump_stack+0x30/0x40 [ 228.621814][ T6309] dump_stack_lvl+0xf4/0x15c [ 228.622608][ T6309] dump_stack+0x1c/0x5c [ 228.623273][ T6309] sysfs_create_dir_ns+0x244/0x264 [ 228.624108][ T6309] kobject_add_internal+0x5ac/0xc3c [ 228.625008][ T6309] kobject_init_and_add+0x124/0x190 [ 228.625876][ T6309] gfs2_sys_fs_add+0x200/0x41c [ 228.626625][ T6309] gfs2_fill_super+0xddc/0x1a18 [ 228.627363][ T6309] get_tree_bdev+0x358/0x544 [ 228.628114][ T6309] gfs2_get_tree+0x54/0x1b4 [ 228.628889][ T6309] vfs_get_tree+0x90/0x274 [ 228.629635][ T6309] do_new_mount+0x228/0x810 [ 228.630420][ T6309] path_mount+0x5bc/0x1008 [ 228.631141][ T6309] __arm64_sys_mount+0x514/0x5f0 [ 228.631927][ T6309] invoke_syscall+0x98/0x2b0 [ 228.632686][ T6309] el0_svc_common+0x138/0x258 [ 228.633461][ T6309] do_el0_svc+0x58/0x13c [ 228.634161][ T6309] el0_svc+0x78/0x1d0 [ 228.634833][ T6309] el0t_64_sync_handler+0xcc/0xe4 [ 228.635676][ T6309] el0t_64_sync+0x1a0/0x1a4 [ 228.638184][ T6309] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.640338][ T6309] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.824283][ T6311] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.825380][ T6311] CPU: 1 PID: 6311 Comm: syz.1.681 Not tainted syzkaller #0 [ 228.826599][ T6311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.828251][ T6311] Call trace: [ 228.828762][ T6311] dump_backtrace+0x0/0x458 [ 228.829501][ T6311] show_stack+0x2c/0x3c [ 228.830192][ T6311] __dump_stack+0x30/0x40 [ 228.830912][ T6311] dump_stack_lvl+0xf4/0x15c [ 228.831711][ T6311] dump_stack+0x1c/0x5c [ 228.832426][ T6311] sysfs_create_dir_ns+0x244/0x264 [ 228.833276][ T6311] kobject_add_internal+0x5ac/0xc3c [ 228.834037][ T6311] kobject_init_and_add+0x124/0x190 [ 228.834884][ T6311] gfs2_sys_fs_add+0x200/0x41c [ 228.835690][ T6311] gfs2_fill_super+0xddc/0x1a18 [ 228.836465][ T6311] get_tree_bdev+0x358/0x544 [ 228.837203][ T6311] gfs2_get_tree+0x54/0x1b4 [ 228.837934][ T6311] vfs_get_tree+0x90/0x274 [ 228.838625][ T6311] do_new_mount+0x228/0x810 [ 228.839299][ T6311] path_mount+0x5bc/0x1008 [ 228.839989][ T6311] __arm64_sys_mount+0x514/0x5f0 [ 228.840741][ T6311] invoke_syscall+0x98/0x2b0 [ 228.841498][ T6311] el0_svc_common+0x138/0x258 [ 228.842304][ T6311] do_el0_svc+0x58/0x13c [ 228.843040][ T6311] el0_svc+0x78/0x1d0 [ 228.843695][ T6311] el0t_64_sync_handler+0xcc/0xe4 [ 228.844513][ T6311] el0t_64_sync+0x1a0/0x1a4 [ 228.846599][ T6311] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.848632][ T6311] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.023501][ T6313] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.024681][ T6313] CPU: 1 PID: 6313 Comm: syz.1.682 Not tainted syzkaller #0 [ 229.025919][ T6313] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.027561][ T6313] Call trace: [ 229.028053][ T6313] dump_backtrace+0x0/0x458 [ 229.028720][ T6313] show_stack+0x2c/0x3c [ 229.029353][ T6313] __dump_stack+0x30/0x40 [ 229.030032][ T6313] dump_stack_lvl+0xf4/0x15c [ 229.030805][ T6313] dump_stack+0x1c/0x5c [ 229.031455][ T6313] sysfs_create_dir_ns+0x244/0x264 [ 229.032258][ T6313] kobject_add_internal+0x5ac/0xc3c [ 229.033076][ T6313] kobject_init_and_add+0x124/0x190 [ 229.033915][ T6313] gfs2_sys_fs_add+0x200/0x41c [ 229.034632][ T6313] gfs2_fill_super+0xddc/0x1a18 [ 229.035392][ T6313] get_tree_bdev+0x358/0x544 [ 229.036085][ T6313] gfs2_get_tree+0x54/0x1b4 [ 229.036805][ T6313] vfs_get_tree+0x90/0x274 [ 229.037514][ T6313] do_new_mount+0x228/0x810 [ 229.038188][ T6313] path_mount+0x5bc/0x1008 [ 229.038943][ T6313] __arm64_sys_mount+0x514/0x5f0 [ 229.039777][ T6313] invoke_syscall+0x98/0x2b0 [ 229.040610][ T6313] el0_svc_common+0x138/0x258 [ 229.041412][ T6313] do_el0_svc+0x58/0x13c [ 229.042160][ T6313] el0_svc+0x78/0x1d0 [ 229.042837][ T6313] el0t_64_sync_handler+0xcc/0xe4 [ 229.043647][ T6313] el0t_64_sync+0x1a0/0x1a4 [ 229.045971][ T6313] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.047988][ T6313] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.224030][ T6315] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.225203][ T6315] CPU: 1 PID: 6315 Comm: syz.1.683 Not tainted syzkaller #0 [ 229.226341][ T6315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.227945][ T6315] Call trace: [ 229.228465][ T6315] dump_backtrace+0x0/0x458 [ 229.229164][ T6315] show_stack+0x2c/0x3c [ 229.229897][ T6315] __dump_stack+0x30/0x40 [ 229.230666][ T6315] dump_stack_lvl+0xf4/0x15c [ 229.231398][ T6315] dump_stack+0x1c/0x5c [ 229.232089][ T6315] sysfs_create_dir_ns+0x244/0x264 [ 229.232944][ T6315] kobject_add_internal+0x5ac/0xc3c [ 229.233834][ T6315] kobject_init_and_add+0x124/0x190 [ 229.234706][ T6315] gfs2_sys_fs_add+0x200/0x41c [ 229.235461][ T6315] gfs2_fill_super+0xddc/0x1a18 [ 229.236162][ T6315] get_tree_bdev+0x358/0x544 [ 229.236898][ T6315] gfs2_get_tree+0x54/0x1b4 [ 229.237585][ T6315] vfs_get_tree+0x90/0x274 [ 229.238331][ T6315] do_new_mount+0x228/0x810 [ 229.239146][ T6315] path_mount+0x5bc/0x1008 [ 229.239850][ T6315] __arm64_sys_mount+0x514/0x5f0 [ 229.240724][ T6315] invoke_syscall+0x98/0x2b0 [ 229.241543][ T6315] el0_svc_common+0x138/0x258 [ 229.242288][ T6315] do_el0_svc+0x58/0x13c [ 229.242960][ T6315] el0_svc+0x78/0x1d0 [ 229.243578][ T6315] el0t_64_sync_handler+0xcc/0xe4 [ 229.244413][ T6315] el0t_64_sync+0x1a0/0x1a4 [ 229.245963][ T6315] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.248257][ T6315] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.420321][ T6317] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.421502][ T6317] CPU: 1 PID: 6317 Comm: syz.1.684 Not tainted syzkaller #0 [ 229.422535][ T6317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.424084][ T6317] Call trace: [ 229.424643][ T6317] dump_backtrace+0x0/0x458 [ 229.425390][ T6317] show_stack+0x2c/0x3c [ 229.426114][ T6317] __dump_stack+0x30/0x40 [ 229.426761][ T6317] dump_stack_lvl+0xf4/0x15c [ 229.427498][ T6317] dump_stack+0x1c/0x5c [ 229.428143][ T6317] sysfs_create_dir_ns+0x244/0x264 [ 229.428979][ T6317] kobject_add_internal+0x5ac/0xc3c [ 229.429791][ T6317] kobject_init_and_add+0x124/0x190 [ 229.430637][ T6317] gfs2_sys_fs_add+0x200/0x41c [ 229.431391][ T6317] gfs2_fill_super+0xddc/0x1a18 [ 229.432136][ T6317] get_tree_bdev+0x358/0x544 [ 229.432870][ T6317] gfs2_get_tree+0x54/0x1b4 [ 229.433595][ T6317] vfs_get_tree+0x90/0x274 [ 229.434307][ T6317] do_new_mount+0x228/0x810 [ 229.435088][ T6317] path_mount+0x5bc/0x1008 [ 229.435835][ T6317] __arm64_sys_mount+0x514/0x5f0 [ 229.436672][ T6317] invoke_syscall+0x98/0x2b0 [ 229.437457][ T6317] el0_svc_common+0x138/0x258 [ 229.438170][ T6317] do_el0_svc+0x58/0x13c [ 229.438835][ T6317] el0_svc+0x78/0x1d0 [ 229.439515][ T6317] el0t_64_sync_handler+0xcc/0xe4 [ 229.440271][ T6317] el0t_64_sync+0x1a0/0x1a4 [ 229.442726][ T6317] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.444745][ T6317] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.616788][ T6319] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.618041][ T6319] CPU: 1 PID: 6319 Comm: syz.1.685 Not tainted syzkaller #0 [ 229.619260][ T6319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.620789][ T6319] Call trace: [ 229.621289][ T6319] dump_backtrace+0x0/0x458 [ 229.621976][ T6319] show_stack+0x2c/0x3c [ 229.622555][ T6319] __dump_stack+0x30/0x40 [ 229.623247][ T6319] dump_stack_lvl+0xf4/0x15c [ 229.623999][ T6319] dump_stack+0x1c/0x5c [ 229.624712][ T6319] sysfs_create_dir_ns+0x244/0x264 [ 229.625547][ T6319] kobject_add_internal+0x5ac/0xc3c [ 229.626323][ T6319] kobject_init_and_add+0x124/0x190 [ 229.627192][ T6319] gfs2_sys_fs_add+0x200/0x41c [ 229.627970][ T6319] gfs2_fill_super+0xddc/0x1a18 [ 229.628764][ T6319] get_tree_bdev+0x358/0x544 [ 229.629513][ T6319] gfs2_get_tree+0x54/0x1b4 [ 229.630213][ T6319] vfs_get_tree+0x90/0x274 [ 229.630975][ T6319] do_new_mount+0x228/0x810 [ 229.631716][ T6319] path_mount+0x5bc/0x1008 [ 229.632448][ T6319] __arm64_sys_mount+0x514/0x5f0 [ 229.633268][ T6319] invoke_syscall+0x98/0x2b0 [ 229.634031][ T6319] el0_svc_common+0x138/0x258 [ 229.634804][ T6319] do_el0_svc+0x58/0x13c [ 229.635506][ T6319] el0_svc+0x78/0x1d0 [ 229.636144][ T6319] el0t_64_sync_handler+0xcc/0xe4 [ 229.636943][ T6319] el0t_64_sync+0x1a0/0x1a4 [ 229.639323][ T6319] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.641304][ T6319] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.873161][ T6321] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.874380][ T6321] CPU: 0 PID: 6321 Comm: syz.1.686 Not tainted syzkaller #0 [ 229.875497][ T6321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.877073][ T6321] Call trace: [ 229.877579][ T6321] dump_backtrace+0x0/0x458 [ 229.878313][ T6321] show_stack+0x2c/0x3c [ 229.878978][ T6321] __dump_stack+0x30/0x40 [ 229.879685][ T6321] dump_stack_lvl+0xf4/0x15c [ 229.880457][ T6321] dump_stack+0x1c/0x5c [ 229.881124][ T6321] sysfs_create_dir_ns+0x244/0x264 [ 229.882004][ T6321] kobject_add_internal+0x5ac/0xc3c [ 229.882894][ T6321] kobject_init_and_add+0x124/0x190 [ 229.883723][ T6321] gfs2_sys_fs_add+0x200/0x41c [ 229.884512][ T6321] gfs2_fill_super+0xddc/0x1a18 [ 229.885308][ T6321] get_tree_bdev+0x358/0x544 [ 229.886069][ T6321] gfs2_get_tree+0x54/0x1b4 [ 229.886769][ T6321] vfs_get_tree+0x90/0x274 [ 229.887570][ T6321] do_new_mount+0x228/0x810 [ 229.888360][ T6321] path_mount+0x5bc/0x1008 [ 229.889108][ T6321] __arm64_sys_mount+0x514/0x5f0 [ 229.889880][ T6321] invoke_syscall+0x98/0x2b0 [ 229.890579][ T6321] el0_svc_common+0x138/0x258 [ 229.891295][ T6321] do_el0_svc+0x58/0x13c [ 229.891948][ T6321] el0_svc+0x78/0x1d0 [ 229.892594][ T6321] el0t_64_sync_handler+0xcc/0xe4 [ 229.893355][ T6321] el0t_64_sync+0x1a0/0x1a4 [ 229.894544][ T6321] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.896664][ T6321] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.070230][ T6323] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.071464][ T6323] CPU: 1 PID: 6323 Comm: syz.1.687 Not tainted syzkaller #0 [ 230.072607][ T6323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.074203][ T6323] Call trace: [ 230.074775][ T6323] dump_backtrace+0x0/0x458 [ 230.075516][ T6323] show_stack+0x2c/0x3c [ 230.076201][ T6323] __dump_stack+0x30/0x40 [ 230.076888][ T6323] dump_stack_lvl+0xf4/0x15c [ 230.077603][ T6323] dump_stack+0x1c/0x5c [ 230.078270][ T6323] sysfs_create_dir_ns+0x244/0x264 [ 230.079013][ T6323] kobject_add_internal+0x5ac/0xc3c [ 230.079831][ T6323] kobject_init_and_add+0x124/0x190 [ 230.080764][ T6323] gfs2_sys_fs_add+0x200/0x41c [ 230.081584][ T6323] gfs2_fill_super+0xddc/0x1a18 [ 230.082351][ T6323] get_tree_bdev+0x358/0x544 [ 230.083071][ T6323] gfs2_get_tree+0x54/0x1b4 [ 230.083843][ T6323] vfs_get_tree+0x90/0x274 [ 230.084482][ T6323] do_new_mount+0x228/0x810 [ 230.085232][ T6323] path_mount+0x5bc/0x1008 [ 230.085969][ T6323] __arm64_sys_mount+0x514/0x5f0 [ 230.086803][ T6323] invoke_syscall+0x98/0x2b0 [ 230.087541][ T6323] el0_svc_common+0x138/0x258 [ 230.088269][ T6323] do_el0_svc+0x58/0x13c [ 230.089015][ T6323] el0_svc+0x78/0x1d0 [ 230.089655][ T6323] el0t_64_sync_handler+0xcc/0xe4 [ 230.090462][ T6323] el0t_64_sync+0x1a0/0x1a4 [ 230.092088][ T6323] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.094225][ T6323] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.233775][ T6325] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.234924][ T6325] CPU: 0 PID: 6325 Comm: syz.1.688 Not tainted syzkaller #0 [ 230.236082][ T6325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.237757][ T6325] Call trace: [ 230.238290][ T6325] dump_backtrace+0x0/0x458 [ 230.238961][ T6325] show_stack+0x2c/0x3c [ 230.239646][ T6325] __dump_stack+0x30/0x40 [ 230.240406][ T6325] dump_stack_lvl+0xf4/0x15c [ 230.241165][ T6325] dump_stack+0x1c/0x5c [ 230.241850][ T6325] sysfs_create_dir_ns+0x244/0x264 [ 230.242700][ T6325] kobject_add_internal+0x5ac/0xc3c [ 230.243555][ T6325] kobject_init_and_add+0x124/0x190 [ 230.244450][ T6325] gfs2_sys_fs_add+0x200/0x41c [ 230.245272][ T6325] gfs2_fill_super+0xddc/0x1a18 [ 230.246118][ T6325] get_tree_bdev+0x358/0x544 [ 230.246868][ T6325] gfs2_get_tree+0x54/0x1b4 [ 230.247647][ T6325] vfs_get_tree+0x90/0x274 [ 230.248411][ T6325] do_new_mount+0x228/0x810 [ 230.249208][ T6325] path_mount+0x5bc/0x1008 [ 230.249977][ T6325] __arm64_sys_mount+0x514/0x5f0 [ 230.250773][ T6325] invoke_syscall+0x98/0x2b0 [ 230.251527][ T6325] el0_svc_common+0x138/0x258 [ 230.252269][ T6325] do_el0_svc+0x58/0x13c [ 230.252998][ T6325] el0_svc+0x78/0x1d0 [ 230.253614][ T6325] el0t_64_sync_handler+0xcc/0xe4 [ 230.254413][ T6325] el0t_64_sync+0x1a0/0x1a4 [ 230.256663][ T6325] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.258666][ T6325] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.430280][ T6327] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.431515][ T6327] CPU: 0 PID: 6327 Comm: syz.1.689 Not tainted syzkaller #0 [ 230.432592][ T6327] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.434180][ T6327] Call trace: [ 230.434693][ T6327] dump_backtrace+0x0/0x458 [ 230.435417][ T6327] show_stack+0x2c/0x3c [ 230.436089][ T6327] __dump_stack+0x30/0x40 [ 230.436782][ T6327] dump_stack_lvl+0xf4/0x15c [ 230.437527][ T6327] dump_stack+0x1c/0x5c [ 230.438169][ T6327] sysfs_create_dir_ns+0x244/0x264 [ 230.438953][ T6327] kobject_add_internal+0x5ac/0xc3c [ 230.439784][ T6327] kobject_init_and_add+0x124/0x190 [ 230.440638][ T6327] gfs2_sys_fs_add+0x200/0x41c [ 230.441448][ T6327] gfs2_fill_super+0xddc/0x1a18 [ 230.442320][ T6327] get_tree_bdev+0x358/0x544 [ 230.443115][ T6327] gfs2_get_tree+0x54/0x1b4 [ 230.443842][ T6327] vfs_get_tree+0x90/0x274 [ 230.444537][ T6327] do_new_mount+0x228/0x810 [ 230.445294][ T6327] path_mount+0x5bc/0x1008 [ 230.445966][ T6327] __arm64_sys_mount+0x514/0x5f0 [ 230.446850][ T6327] invoke_syscall+0x98/0x2b0 [ 230.447614][ T6327] el0_svc_common+0x138/0x258 [ 230.448355][ T6327] do_el0_svc+0x58/0x13c [ 230.449105][ T6327] el0_svc+0x78/0x1d0 [ 230.449795][ T6327] el0t_64_sync_handler+0xcc/0xe4 [ 230.450639][ T6327] el0t_64_sync+0x1a0/0x1a4 [ 230.452151][ T6327] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.454132][ T6327] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.620093][ T6329] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.621304][ T6329] CPU: 0 PID: 6329 Comm: syz.1.690 Not tainted syzkaller #0 [ 230.622378][ T6329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.623861][ T6329] Call trace: [ 230.624351][ T6329] dump_backtrace+0x0/0x458 [ 230.625045][ T6329] show_stack+0x2c/0x3c [ 230.625697][ T6329] __dump_stack+0x30/0x40 [ 230.626332][ T6329] dump_stack_lvl+0xf4/0x15c [ 230.627055][ T6329] dump_stack+0x1c/0x5c [ 230.627762][ T6329] sysfs_create_dir_ns+0x244/0x264 [ 230.628569][ T6329] kobject_add_internal+0x5ac/0xc3c [ 230.629404][ T6329] kobject_init_and_add+0x124/0x190 [ 230.630256][ T6329] gfs2_sys_fs_add+0x200/0x41c [ 230.631057][ T6329] gfs2_fill_super+0xddc/0x1a18 [ 230.631839][ T6329] get_tree_bdev+0x358/0x544 [ 230.632580][ T6329] gfs2_get_tree+0x54/0x1b4 [ 230.633298][ T6329] vfs_get_tree+0x90/0x274 [ 230.633997][ T6329] do_new_mount+0x228/0x810 [ 230.634688][ T6329] path_mount+0x5bc/0x1008 [ 230.635392][ T6329] __arm64_sys_mount+0x514/0x5f0 [ 230.636178][ T6329] invoke_syscall+0x98/0x2b0 [ 230.636874][ T6329] el0_svc_common+0x138/0x258 [ 230.637580][ T6329] do_el0_svc+0x58/0x13c [ 230.638181][ T6329] el0_svc+0x78/0x1d0 [ 230.638746][ T6329] el0t_64_sync_handler+0xcc/0xe4 [ 230.639494][ T6329] el0t_64_sync+0x1a0/0x1a4 [ 230.641581][ T6329] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.643619][ T6329] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.784679][ T6331] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.785800][ T6331] CPU: 1 PID: 6331 Comm: syz.1.691 Not tainted syzkaller #0 [ 230.787117][ T6331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.788799][ T6331] Call trace: [ 230.789344][ T6331] dump_backtrace+0x0/0x458 [ 230.790060][ T6331] show_stack+0x2c/0x3c [ 230.790757][ T6331] __dump_stack+0x30/0x40 [ 230.791483][ T6331] dump_stack_lvl+0xf4/0x15c [ 230.792258][ T6331] dump_stack+0x1c/0x5c [ 230.792930][ T6331] sysfs_create_dir_ns+0x244/0x264 [ 230.793768][ T6331] kobject_add_internal+0x5ac/0xc3c [ 230.794633][ T6331] kobject_init_and_add+0x124/0x190 [ 230.795487][ T6331] gfs2_sys_fs_add+0x200/0x41c [ 230.796231][ T6331] gfs2_fill_super+0xddc/0x1a18 [ 230.797125][ T6331] get_tree_bdev+0x358/0x544 [ 230.797777][ T6331] gfs2_get_tree+0x54/0x1b4 [ 230.798831][ T6331] vfs_get_tree+0x90/0x274 [ 230.799487][ T6331] do_new_mount+0x228/0x810 [ 230.800268][ T6331] path_mount+0x5bc/0x1008 [ 230.801024][ T6331] __arm64_sys_mount+0x514/0x5f0 [ 230.801801][ T6331] invoke_syscall+0x98/0x2b0 [ 230.802516][ T6331] el0_svc_common+0x138/0x258 [ 230.803227][ T6331] do_el0_svc+0x58/0x13c [ 230.803881][ T6331] el0_svc+0x78/0x1d0 [ 230.804465][ T6331] el0t_64_sync_handler+0xcc/0xe4 [ 230.805213][ T6331] el0t_64_sync+0x1a0/0x1a4 [ 230.806072][ T6331] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.808226][ T6331] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.014118][ T6333] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.015317][ T6333] CPU: 1 PID: 6333 Comm: syz.1.692 Not tainted syzkaller #0 [ 231.016439][ T6333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.018010][ T6333] Call trace: [ 231.018563][ T6333] dump_backtrace+0x0/0x458 [ 231.019372][ T6333] show_stack+0x2c/0x3c [ 231.020065][ T6333] __dump_stack+0x30/0x40 [ 231.020842][ T6333] dump_stack_lvl+0xf4/0x15c [ 231.021583][ T6333] dump_stack+0x1c/0x5c [ 231.022256][ T6333] sysfs_create_dir_ns+0x244/0x264 [ 231.023072][ T6333] kobject_add_internal+0x5ac/0xc3c [ 231.023890][ T6333] kobject_init_and_add+0x124/0x190 [ 231.024806][ T6333] gfs2_sys_fs_add+0x200/0x41c [ 231.025602][ T6333] gfs2_fill_super+0xddc/0x1a18 [ 231.026337][ T6333] get_tree_bdev+0x358/0x544 [ 231.027022][ T6333] gfs2_get_tree+0x54/0x1b4 [ 231.027763][ T6333] vfs_get_tree+0x90/0x274 [ 231.028518][ T6333] do_new_mount+0x228/0x810 [ 231.029223][ T6333] path_mount+0x5bc/0x1008 [ 231.029875][ T6333] __arm64_sys_mount+0x514/0x5f0 [ 231.030631][ T6333] invoke_syscall+0x98/0x2b0 [ 231.031336][ T6333] el0_svc_common+0x138/0x258 [ 231.032127][ T6333] do_el0_svc+0x58/0x13c [ 231.032808][ T6333] el0_svc+0x78/0x1d0 [ 231.033466][ T6333] el0t_64_sync_handler+0xcc/0xe4 [ 231.034251][ T6333] el0t_64_sync+0x1a0/0x1a4 [ 231.035579][ T6333] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.037571][ T6333] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.270242][ T6335] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.271536][ T6335] CPU: 1 PID: 6335 Comm: syz.1.693 Not tainted syzkaller #0 [ 231.272685][ T6335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.274225][ T6335] Call trace: [ 231.274771][ T6335] dump_backtrace+0x0/0x458 [ 231.275449][ T6335] show_stack+0x2c/0x3c [ 231.276164][ T6335] __dump_stack+0x30/0x40 [ 231.276854][ T6335] dump_stack_lvl+0xf4/0x15c [ 231.277539][ T6335] dump_stack+0x1c/0x5c [ 231.278148][ T6335] sysfs_create_dir_ns+0x244/0x264 [ 231.278964][ T6335] kobject_add_internal+0x5ac/0xc3c [ 231.279784][ T6335] kobject_init_and_add+0x124/0x190 [ 231.280617][ T6335] gfs2_sys_fs_add+0x200/0x41c [ 231.281406][ T6335] gfs2_fill_super+0xddc/0x1a18 [ 231.282122][ T6335] get_tree_bdev+0x358/0x544 [ 231.282843][ T6335] gfs2_get_tree+0x54/0x1b4 [ 231.283608][ T6335] vfs_get_tree+0x90/0x274 [ 231.284313][ T6335] do_new_mount+0x228/0x810 [ 231.285085][ T6335] path_mount+0x5bc/0x1008 [ 231.285816][ T6335] __arm64_sys_mount+0x514/0x5f0 [ 231.286588][ T6335] invoke_syscall+0x98/0x2b0 [ 231.287347][ T6335] el0_svc_common+0x138/0x258 [ 231.288074][ T6335] do_el0_svc+0x58/0x13c [ 231.288734][ T6335] el0_svc+0x78/0x1d0 [ 231.289426][ T6335] el0t_64_sync_handler+0xcc/0xe4 [ 231.290306][ T6335] el0t_64_sync+0x1a0/0x1a4 [ 231.291289][ T6335] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.293209][ T6335] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:51 executed programs: 680 [ 231.535012][ T6337] set_capacity_and_notify: 15 callbacks suppressed [ 231.535023][ T6337] loop1: detected capacity change from 0 to 32768 [ 231.593890][ T6337] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.595089][ T6337] CPU: 0 PID: 6337 Comm: syz.1.694 Not tainted syzkaller #0 [ 231.596278][ T6337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.597784][ T6337] Call trace: [ 231.598378][ T6337] dump_backtrace+0x0/0x458 [ 231.599115][ T6337] show_stack+0x2c/0x3c [ 231.599740][ T6337] __dump_stack+0x30/0x40 [ 231.600409][ T6337] dump_stack_lvl+0xf4/0x15c [ 231.601142][ T6337] dump_stack+0x1c/0x5c [ 231.601809][ T6337] sysfs_create_dir_ns+0x244/0x264 [ 231.602550][ T6337] kobject_add_internal+0x5ac/0xc3c [ 231.603398][ T6337] kobject_init_and_add+0x124/0x190 [ 231.604236][ T6337] gfs2_sys_fs_add+0x200/0x41c [ 231.605119][ T6337] gfs2_fill_super+0xddc/0x1a18 [ 231.605936][ T6337] get_tree_bdev+0x358/0x544 [ 231.606706][ T6337] gfs2_get_tree+0x54/0x1b4 [ 231.607448][ T6337] vfs_get_tree+0x90/0x274 [ 231.608182][ T6337] do_new_mount+0x228/0x810 [ 231.608933][ T6337] path_mount+0x5bc/0x1008 [ 231.609716][ T6337] __arm64_sys_mount+0x514/0x5f0 [ 231.610491][ T6337] invoke_syscall+0x98/0x2b0 [ 231.611264][ T6337] el0_svc_common+0x138/0x258 [ 231.612150][ T6337] do_el0_svc+0x58/0x13c [ 231.612854][ T6337] el0_svc+0x78/0x1d0 [ 231.613537][ T6337] el0t_64_sync_handler+0xcc/0xe4 [ 231.614409][ T6337] el0t_64_sync+0x1a0/0x1a4 [ 231.616569][ T6337] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.618453][ T6337] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.751009][ T6339] loop1: detected capacity change from 0 to 32768 [ 231.755545][ T6339] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.756840][ T6339] CPU: 0 PID: 6339 Comm: syz.1.695 Not tainted syzkaller #0 [ 231.758000][ T6339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.759594][ T6339] Call trace: [ 231.760090][ T6339] dump_backtrace+0x0/0x458 [ 231.760781][ T6339] show_stack+0x2c/0x3c [ 231.761430][ T6339] __dump_stack+0x30/0x40 [ 231.762095][ T6339] dump_stack_lvl+0xf4/0x15c [ 231.762800][ T6339] dump_stack+0x1c/0x5c [ 231.763442][ T6339] sysfs_create_dir_ns+0x244/0x264 [ 231.764285][ T6339] kobject_add_internal+0x5ac/0xc3c [ 231.765065][ T6339] kobject_init_and_add+0x124/0x190 [ 231.765856][ T6339] gfs2_sys_fs_add+0x200/0x41c [ 231.766695][ T6339] gfs2_fill_super+0xddc/0x1a18 [ 231.767421][ T6339] get_tree_bdev+0x358/0x544 [ 231.768119][ T6339] gfs2_get_tree+0x54/0x1b4 [ 231.768813][ T6339] vfs_get_tree+0x90/0x274 [ 231.769470][ T6339] do_new_mount+0x228/0x810 [ 231.770087][ T6339] path_mount+0x5bc/0x1008 [ 231.770734][ T6339] __arm64_sys_mount+0x514/0x5f0 [ 231.771468][ T6339] invoke_syscall+0x98/0x2b0 [ 231.772222][ T6339] el0_svc_common+0x138/0x258 [ 231.772907][ T6339] do_el0_svc+0x58/0x13c [ 231.773582][ T6339] el0_svc+0x78/0x1d0 [ 231.774212][ T6339] el0t_64_sync_handler+0xcc/0xe4 [ 231.775014][ T6339] el0t_64_sync+0x1a0/0x1a4 [ 231.776211][ T6339] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.778197][ T6339] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.905298][ T6341] loop1: detected capacity change from 0 to 32768 [ 231.912459][ T6341] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.913612][ T6341] CPU: 0 PID: 6341 Comm: syz.1.696 Not tainted syzkaller #0 [ 231.914716][ T6341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.916451][ T6341] Call trace: [ 231.917012][ T6341] dump_backtrace+0x0/0x458 [ 231.917757][ T6341] show_stack+0x2c/0x3c [ 231.918481][ T6341] __dump_stack+0x30/0x40 [ 231.919243][ T6341] dump_stack_lvl+0xf4/0x15c [ 231.919993][ T6341] dump_stack+0x1c/0x5c [ 231.920619][ T6341] sysfs_create_dir_ns+0x244/0x264 [ 231.921453][ T6341] kobject_add_internal+0x5ac/0xc3c [ 231.922244][ T6341] kobject_init_and_add+0x124/0x190 [ 231.923034][ T6341] gfs2_sys_fs_add+0x200/0x41c [ 231.923801][ T6341] gfs2_fill_super+0xddc/0x1a18 [ 231.924597][ T6341] get_tree_bdev+0x358/0x544 [ 231.925292][ T6341] gfs2_get_tree+0x54/0x1b4 [ 231.925952][ T6341] vfs_get_tree+0x90/0x274 [ 231.926583][ T6341] do_new_mount+0x228/0x810 [ 231.927290][ T6341] path_mount+0x5bc/0x1008 [ 231.927915][ T6341] __arm64_sys_mount+0x514/0x5f0 [ 231.928646][ T6341] invoke_syscall+0x98/0x2b0 [ 231.929335][ T6341] el0_svc_common+0x138/0x258 [ 231.930060][ T6341] do_el0_svc+0x58/0x13c [ 231.930678][ T6341] el0_svc+0x78/0x1d0 [ 231.931289][ T6341] el0t_64_sync_handler+0xcc/0xe4 [ 231.932050][ T6341] el0t_64_sync+0x1a0/0x1a4 [ 231.932996][ T6341] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.934922][ T6341] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.067093][ T6343] loop1: detected capacity change from 0 to 32768 [ 232.114495][ T6343] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.115715][ T6343] CPU: 1 PID: 6343 Comm: syz.1.697 Not tainted syzkaller #0 [ 232.116814][ T6343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.118458][ T6343] Call trace: [ 232.118977][ T6343] dump_backtrace+0x0/0x458 [ 232.119729][ T6343] show_stack+0x2c/0x3c [ 232.120435][ T6343] __dump_stack+0x30/0x40 [ 232.121097][ T6343] dump_stack_lvl+0xf4/0x15c [ 232.121852][ T6343] dump_stack+0x1c/0x5c [ 232.122502][ T6343] sysfs_create_dir_ns+0x244/0x264 [ 232.123294][ T6343] kobject_add_internal+0x5ac/0xc3c [ 232.124097][ T6343] kobject_init_and_add+0x124/0x190 [ 232.124879][ T6343] gfs2_sys_fs_add+0x200/0x41c [ 232.125684][ T6343] gfs2_fill_super+0xddc/0x1a18 [ 232.126496][ T6343] get_tree_bdev+0x358/0x544 [ 232.127243][ T6343] gfs2_get_tree+0x54/0x1b4 [ 232.127963][ T6343] vfs_get_tree+0x90/0x274 [ 232.128650][ T6343] do_new_mount+0x228/0x810 [ 232.129345][ T6343] path_mount+0x5bc/0x1008 [ 232.129993][ T6343] __arm64_sys_mount+0x514/0x5f0 [ 232.130774][ T6343] invoke_syscall+0x98/0x2b0 [ 232.131549][ T6343] el0_svc_common+0x138/0x258 [ 232.132314][ T6343] do_el0_svc+0x58/0x13c [ 232.133018][ T6343] el0_svc+0x78/0x1d0 [ 232.133698][ T6343] el0t_64_sync_handler+0xcc/0xe4 [ 232.134515][ T6343] el0t_64_sync+0x1a0/0x1a4 [ 232.135805][ T6343] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.137857][ T6343] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.272914][ T6345] loop1: detected capacity change from 0 to 32768 [ 232.310990][ T6345] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.312496][ T6345] CPU: 1 PID: 6345 Comm: syz.1.698 Not tainted syzkaller #0 [ 232.313654][ T6345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.315009][ T6345] Call trace: [ 232.315526][ T6345] dump_backtrace+0x0/0x458 [ 232.316209][ T6345] show_stack+0x2c/0x3c [ 232.316863][ T6345] __dump_stack+0x30/0x40 [ 232.317556][ T6345] dump_stack_lvl+0xf4/0x15c [ 232.318294][ T6345] dump_stack+0x1c/0x5c [ 232.319011][ T6345] sysfs_create_dir_ns+0x244/0x264 [ 232.319864][ T6345] kobject_add_internal+0x5ac/0xc3c [ 232.320762][ T6345] kobject_init_and_add+0x124/0x190 [ 232.321600][ T6345] gfs2_sys_fs_add+0x200/0x41c [ 232.322402][ T6345] gfs2_fill_super+0xddc/0x1a18 [ 232.323190][ T6345] get_tree_bdev+0x358/0x544 [ 232.323992][ T6345] gfs2_get_tree+0x54/0x1b4 [ 232.324648][ T6345] vfs_get_tree+0x90/0x274 [ 232.325374][ T6345] do_new_mount+0x228/0x810 [ 232.326117][ T6345] path_mount+0x5bc/0x1008 [ 232.326920][ T6345] __arm64_sys_mount+0x514/0x5f0 [ 232.327717][ T6345] invoke_syscall+0x98/0x2b0 [ 232.328482][ T6345] el0_svc_common+0x138/0x258 [ 232.329212][ T6345] do_el0_svc+0x58/0x13c [ 232.329875][ T6345] el0_svc+0x78/0x1d0 [ 232.330465][ T6345] el0t_64_sync_handler+0xcc/0xe4 [ 232.331247][ T6345] el0t_64_sync+0x1a0/0x1a4 [ 232.333710][ T6345] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.335697][ T6345] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.469927][ T6347] loop1: detected capacity change from 0 to 32768 [ 232.477608][ T6347] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.478755][ T6347] CPU: 0 PID: 6347 Comm: syz.1.699 Not tainted syzkaller #0 [ 232.480021][ T6347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.481660][ T6347] Call trace: [ 232.482194][ T6347] dump_backtrace+0x0/0x458 [ 232.482846][ T6347] show_stack+0x2c/0x3c [ 232.483491][ T6347] __dump_stack+0x30/0x40 [ 232.484126][ T6347] dump_stack_lvl+0xf4/0x15c [ 232.484930][ T6347] dump_stack+0x1c/0x5c [ 232.485574][ T6347] sysfs_create_dir_ns+0x244/0x264 [ 232.486449][ T6347] kobject_add_internal+0x5ac/0xc3c [ 232.487276][ T6347] kobject_init_and_add+0x124/0x190 [ 232.488008][ T6347] gfs2_sys_fs_add+0x200/0x41c [ 232.488728][ T6347] gfs2_fill_super+0xddc/0x1a18 [ 232.489509][ T6347] get_tree_bdev+0x358/0x544 [ 232.490279][ T6347] gfs2_get_tree+0x54/0x1b4 [ 232.490982][ T6347] vfs_get_tree+0x90/0x274 [ 232.491725][ T6347] do_new_mount+0x228/0x810 [ 232.492381][ T6347] path_mount+0x5bc/0x1008 [ 232.493094][ T6347] __arm64_sys_mount+0x514/0x5f0 [ 232.493859][ T6347] invoke_syscall+0x98/0x2b0 [ 232.494576][ T6347] el0_svc_common+0x138/0x258 [ 232.495254][ T6347] do_el0_svc+0x58/0x13c [ 232.495993][ T6347] el0_svc+0x78/0x1d0 [ 232.496623][ T6347] el0t_64_sync_handler+0xcc/0xe4 [ 232.497465][ T6347] el0t_64_sync+0x1a0/0x1a4 [ 232.498392][ T6347] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.500517][ T6347] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.632077][ T6349] loop1: detected capacity change from 0 to 32768 [ 232.639312][ T6349] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.640490][ T6349] CPU: 1 PID: 6349 Comm: syz.1.700 Not tainted syzkaller #0 [ 232.641611][ T6349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.643096][ T6349] Call trace: [ 232.643597][ T6349] dump_backtrace+0x0/0x458 [ 232.644362][ T6349] show_stack+0x2c/0x3c [ 232.645065][ T6349] __dump_stack+0x30/0x40 [ 232.645731][ T6349] dump_stack_lvl+0xf4/0x15c [ 232.646539][ T6349] dump_stack+0x1c/0x5c [ 232.647208][ T6349] sysfs_create_dir_ns+0x244/0x264 [ 232.648036][ T6349] kobject_add_internal+0x5ac/0xc3c [ 232.648783][ T6349] kobject_init_and_add+0x124/0x190 [ 232.649598][ T6349] gfs2_sys_fs_add+0x200/0x41c [ 232.650407][ T6349] gfs2_fill_super+0xddc/0x1a18 [ 232.651203][ T6349] get_tree_bdev+0x358/0x544 [ 232.651899][ T6349] gfs2_get_tree+0x54/0x1b4 [ 232.652651][ T6349] vfs_get_tree+0x90/0x274 [ 232.653360][ T6349] do_new_mount+0x228/0x810 [ 232.654045][ T6349] path_mount+0x5bc/0x1008 [ 232.654706][ T6349] __arm64_sys_mount+0x514/0x5f0 [ 232.655485][ T6349] invoke_syscall+0x98/0x2b0 [ 232.656254][ T6349] el0_svc_common+0x138/0x258 [ 232.656992][ T6349] do_el0_svc+0x58/0x13c [ 232.657597][ T6349] el0_svc+0x78/0x1d0 [ 232.658280][ T6349] el0t_64_sync_handler+0xcc/0xe4 [ 232.659142][ T6349] el0t_64_sync+0x1a0/0x1a4 [ 232.661316][ T6349] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.663679][ T6349] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.859423][ T6351] loop1: detected capacity change from 0 to 32768 [ 232.911191][ T6351] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.912405][ T6351] CPU: 1 PID: 6351 Comm: syz.1.701 Not tainted syzkaller #0 [ 232.913551][ T6351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.915137][ T6351] Call trace: [ 232.915671][ T6351] dump_backtrace+0x0/0x458 [ 232.916395][ T6351] show_stack+0x2c/0x3c [ 232.917126][ T6351] __dump_stack+0x30/0x40 [ 232.917761][ T6351] dump_stack_lvl+0xf4/0x15c [ 232.918396][ T6351] dump_stack+0x1c/0x5c [ 232.918999][ T6351] sysfs_create_dir_ns+0x244/0x264 [ 232.919832][ T6351] kobject_add_internal+0x5ac/0xc3c [ 232.920651][ T6351] kobject_init_and_add+0x124/0x190 [ 232.921447][ T6351] gfs2_sys_fs_add+0x200/0x41c [ 232.922184][ T6351] gfs2_fill_super+0xddc/0x1a18 [ 232.922899][ T6351] get_tree_bdev+0x358/0x544 [ 232.923642][ T6351] gfs2_get_tree+0x54/0x1b4 [ 232.924352][ T6351] vfs_get_tree+0x90/0x274 [ 232.925085][ T6351] do_new_mount+0x228/0x810 [ 232.925872][ T6351] path_mount+0x5bc/0x1008 [ 232.926582][ T6351] __arm64_sys_mount+0x514/0x5f0 [ 232.927353][ T6351] invoke_syscall+0x98/0x2b0 [ 232.927996][ T6351] el0_svc_common+0x138/0x258 [ 232.928763][ T6351] do_el0_svc+0x58/0x13c [ 232.929399][ T6351] el0_svc+0x78/0x1d0 [ 232.930002][ T6351] el0t_64_sync_handler+0xcc/0xe4 [ 232.930744][ T6351] el0t_64_sync+0x1a0/0x1a4 [ 232.936120][ T6351] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.938224][ T6351] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.071089][ T6353] loop1: detected capacity change from 0 to 32768 [ 233.078658][ T6353] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.079964][ T6353] CPU: 0 PID: 6353 Comm: syz.1.702 Not tainted syzkaller #0 [ 233.081087][ T6353] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.082725][ T6353] Call trace: [ 233.083271][ T6353] dump_backtrace+0x0/0x458 [ 233.083998][ T6353] show_stack+0x2c/0x3c [ 233.084651][ T6353] __dump_stack+0x30/0x40 [ 233.085326][ T6353] dump_stack_lvl+0xf4/0x15c [ 233.085994][ T6353] dump_stack+0x1c/0x5c [ 233.086670][ T6353] sysfs_create_dir_ns+0x244/0x264 [ 233.087452][ T6353] kobject_add_internal+0x5ac/0xc3c [ 233.088254][ T6353] kobject_init_and_add+0x124/0x190 [ 233.089099][ T6353] gfs2_sys_fs_add+0x200/0x41c [ 233.089798][ T6353] gfs2_fill_super+0xddc/0x1a18 [ 233.090577][ T6353] get_tree_bdev+0x358/0x544 [ 233.091276][ T6353] gfs2_get_tree+0x54/0x1b4 [ 233.091978][ T6353] vfs_get_tree+0x90/0x274 [ 233.092624][ T6353] do_new_mount+0x228/0x810 [ 233.093367][ T6353] path_mount+0x5bc/0x1008 [ 233.094002][ T6353] __arm64_sys_mount+0x514/0x5f0 [ 233.094803][ T6353] invoke_syscall+0x98/0x2b0 [ 233.095544][ T6353] el0_svc_common+0x138/0x258 [ 233.096265][ T6353] do_el0_svc+0x58/0x13c [ 233.096973][ T6353] el0_svc+0x78/0x1d0 [ 233.097597][ T6353] el0t_64_sync_handler+0xcc/0xe4 [ 233.098430][ T6353] el0t_64_sync+0x1a0/0x1a4 [ 233.099527][ T6353] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.101474][ T6353] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.236554][ T6355] loop1: detected capacity change from 0 to 32768 [ 233.298714][ T6355] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.301817][ T6355] CPU: 1 PID: 6355 Comm: syz.1.703 Not tainted syzkaller #0 [ 233.302969][ T6355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.304538][ T6355] Call trace: [ 233.305071][ T6355] dump_backtrace+0x0/0x458 [ 233.305793][ T6355] show_stack+0x2c/0x3c [ 233.306432][ T6355] __dump_stack+0x30/0x40 [ 233.307093][ T6355] dump_stack_lvl+0xf4/0x15c [ 233.307844][ T6355] dump_stack+0x1c/0x5c [ 233.308543][ T6355] sysfs_create_dir_ns+0x244/0x264 [ 233.309321][ T6355] kobject_add_internal+0x5ac/0xc3c [ 233.310128][ T6355] kobject_init_and_add+0x124/0x190 [ 233.310938][ T6355] gfs2_sys_fs_add+0x200/0x41c [ 233.311646][ T6355] gfs2_fill_super+0xddc/0x1a18 [ 233.312365][ T6355] get_tree_bdev+0x358/0x544 [ 233.313059][ T6355] gfs2_get_tree+0x54/0x1b4 [ 233.313719][ T6355] vfs_get_tree+0x90/0x274 [ 233.314461][ T6355] do_new_mount+0x228/0x810 [ 233.315220][ T6355] path_mount+0x5bc/0x1008 [ 233.315928][ T6355] __arm64_sys_mount+0x514/0x5f0 [ 233.316727][ T6355] invoke_syscall+0x98/0x2b0 [ 233.317464][ T6355] el0_svc_common+0x138/0x258 [ 233.318181][ T6355] do_el0_svc+0x58/0x13c [ 233.318812][ T6355] el0_svc+0x78/0x1d0 [ 233.319405][ T6355] el0t_64_sync_handler+0xcc/0xe4 [ 233.320180][ T6355] el0t_64_sync+0x1a0/0x1a4 [ 233.322440][ T6355] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.324468][ T6355] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.504845][ T6357] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.506046][ T6357] CPU: 1 PID: 6357 Comm: syz.1.704 Not tainted syzkaller #0 [ 233.507180][ T6357] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.508819][ T6357] Call trace: [ 233.509286][ T6357] dump_backtrace+0x0/0x458 [ 233.509911][ T6357] show_stack+0x2c/0x3c [ 233.510663][ T6357] __dump_stack+0x30/0x40 [ 233.511325][ T6357] dump_stack_lvl+0xf4/0x15c [ 233.511996][ T6357] dump_stack+0x1c/0x5c [ 233.512597][ T6357] sysfs_create_dir_ns+0x244/0x264 [ 233.513395][ T6357] kobject_add_internal+0x5ac/0xc3c [ 233.514253][ T6357] kobject_init_and_add+0x124/0x190 [ 233.515036][ T6357] gfs2_sys_fs_add+0x200/0x41c [ 233.515807][ T6357] gfs2_fill_super+0xddc/0x1a18 [ 233.516584][ T6357] get_tree_bdev+0x358/0x544 [ 233.517374][ T6357] gfs2_get_tree+0x54/0x1b4 [ 233.518091][ T6357] vfs_get_tree+0x90/0x274 [ 233.518805][ T6357] do_new_mount+0x228/0x810 [ 233.519551][ T6357] path_mount+0x5bc/0x1008 [ 233.520221][ T6357] __arm64_sys_mount+0x514/0x5f0 [ 233.521042][ T6357] invoke_syscall+0x98/0x2b0 [ 233.521832][ T6357] el0_svc_common+0x138/0x258 [ 233.522629][ T6357] do_el0_svc+0x58/0x13c [ 233.523273][ T6357] el0_svc+0x78/0x1d0 [ 233.523997][ T6357] el0t_64_sync_handler+0xcc/0xe4 [ 233.524809][ T6357] el0t_64_sync+0x1a0/0x1a4 [ 233.526885][ T6357] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.528988][ T6357] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.700509][ T6359] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.701766][ T6359] CPU: 0 PID: 6359 Comm: syz.1.705 Not tainted syzkaller #0 [ 233.702940][ T6359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.704587][ T6359] Call trace: [ 233.705120][ T6359] dump_backtrace+0x0/0x458 [ 233.705862][ T6359] show_stack+0x2c/0x3c [ 233.706528][ T6359] __dump_stack+0x30/0x40 [ 233.707238][ T6359] dump_stack_lvl+0xf4/0x15c [ 233.707934][ T6359] dump_stack+0x1c/0x5c [ 233.708641][ T6359] sysfs_create_dir_ns+0x244/0x264 [ 233.709501][ T6359] kobject_add_internal+0x5ac/0xc3c [ 233.710323][ T6359] kobject_init_and_add+0x124/0x190 [ 233.711160][ T6359] gfs2_sys_fs_add+0x200/0x41c [ 233.711957][ T6359] gfs2_fill_super+0xddc/0x1a18 [ 233.712767][ T6359] get_tree_bdev+0x358/0x544 [ 233.713450][ T6359] gfs2_get_tree+0x54/0x1b4 [ 233.714069][ T6359] vfs_get_tree+0x90/0x274 [ 233.714726][ T6359] do_new_mount+0x228/0x810 [ 233.715395][ T6359] path_mount+0x5bc/0x1008 [ 233.716167][ T6359] __arm64_sys_mount+0x514/0x5f0 [ 233.716981][ T6359] invoke_syscall+0x98/0x2b0 [ 233.717727][ T6359] el0_svc_common+0x138/0x258 [ 233.718521][ T6359] do_el0_svc+0x58/0x13c [ 233.719194][ T6359] el0_svc+0x78/0x1d0 [ 233.719837][ T6359] el0t_64_sync_handler+0xcc/0xe4 [ 233.720671][ T6359] el0t_64_sync+0x1a0/0x1a4 [ 233.722084][ T6359] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.724022][ T6359] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.862240][ T6361] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.863608][ T6361] CPU: 0 PID: 6361 Comm: syz.1.706 Not tainted syzkaller #0 [ 233.864719][ T6361] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.866353][ T6361] Call trace: [ 233.866876][ T6361] dump_backtrace+0x0/0x458 [ 233.867590][ T6361] show_stack+0x2c/0x3c [ 233.868245][ T6361] __dump_stack+0x30/0x40 [ 233.868994][ T6361] dump_stack_lvl+0xf4/0x15c [ 233.869641][ T6361] dump_stack+0x1c/0x5c [ 233.870325][ T6361] sysfs_create_dir_ns+0x244/0x264 [ 233.871116][ T6361] kobject_add_internal+0x5ac/0xc3c [ 233.871921][ T6361] kobject_init_and_add+0x124/0x190 [ 233.872706][ T6361] gfs2_sys_fs_add+0x200/0x41c [ 233.873510][ T6361] gfs2_fill_super+0xddc/0x1a18 [ 233.874297][ T6361] get_tree_bdev+0x358/0x544 [ 233.875052][ T6361] gfs2_get_tree+0x54/0x1b4 [ 233.875693][ T6361] vfs_get_tree+0x90/0x274 [ 233.876376][ T6361] do_new_mount+0x228/0x810 [ 233.876992][ T6361] path_mount+0x5bc/0x1008 [ 233.877653][ T6361] __arm64_sys_mount+0x514/0x5f0 [ 233.878287][ T6361] invoke_syscall+0x98/0x2b0 [ 233.878942][ T6361] el0_svc_common+0x138/0x258 [ 233.879621][ T6361] do_el0_svc+0x58/0x13c [ 233.880228][ T6361] el0_svc+0x78/0x1d0 [ 233.880862][ T6361] el0t_64_sync_handler+0xcc/0xe4 [ 233.881644][ T6361] el0t_64_sync+0x1a0/0x1a4 [ 233.884106][ T6361] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.886163][ T6361] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.088983][ T27] INFO: task syz-executor:4736 blocked for more than 143 seconds. [ 234.090316][ T27] Not tainted syzkaller #0 [ 234.091096][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 234.092467][ T27] task:syz-executor state:D stack: 0 pid: 4736 ppid: 1 flags:0x00000009 [ 234.093912][ T27] Call trace: [ 234.094434][ T27] __switch_to+0x2f4/0x540 [ 234.095153][ T27] __schedule+0xdfc/0x1bc4 [ 234.096564][ T27] schedule+0x11c/0x1c8 [ 234.097184][ T27] schedule_timeout+0x194/0x2f4 [ 234.098019][ T27] gfs2_gl_hash_clear+0x174/0x2cc [ 234.099437][ T27] gfs2_put_super+0x614/0x6b4 [ 234.100166][ T27] generic_shutdown_super+0x130/0x2f0 [ 234.101089][ T27] kill_block_super+0x70/0xdc [ 234.101918][ T27] gfs2_kill_sb+0xc0/0xd4 [ 234.102585][ T27] deactivate_locked_super+0xb8/0x134 [ 234.103679][ T27] deactivate_super+0xf0/0x110 [ 234.104516][ T6363] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.105697][ T6363] CPU: 1 PID: 6363 Comm: syz.1.707 Not tainted syzkaller #0 [ 234.106866][ T6363] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.108533][ T6363] Call trace: [ 234.109007][ T6363] dump_backtrace+0x0/0x458 [ 234.109671][ T6363] show_stack+0x2c/0x3c [ 234.110317][ T6363] __dump_stack+0x30/0x40 [ 234.111012][ T6363] dump_stack_lvl+0xf4/0x15c [ 234.111814][ T6363] dump_stack+0x1c/0x5c [ 234.112439][ T6363] sysfs_create_dir_ns+0x244/0x264 [ 234.113204][ T6363] kobject_add_internal+0x5ac/0xc3c [ 234.114008][ T6363] kobject_init_and_add+0x124/0x190 [ 234.114844][ T6363] gfs2_sys_fs_add+0x200/0x41c [ 234.115622][ T6363] gfs2_fill_super+0xddc/0x1a18 [ 234.116451][ T6363] get_tree_bdev+0x358/0x544 [ 234.117199][ T6363] gfs2_get_tree+0x54/0x1b4 [ 234.117961][ T6363] vfs_get_tree+0x90/0x274 [ 234.118666][ T6363] do_new_mount+0x228/0x810 [ 234.119368][ T6363] path_mount+0x5bc/0x1008 [ 234.120048][ T6363] __arm64_sys_mount+0x514/0x5f0 [ 234.120731][ T6363] invoke_syscall+0x98/0x2b0 [ 234.121497][ T6363] el0_svc_common+0x138/0x258 [ 234.122186][ T6363] do_el0_svc+0x58/0x13c [ 234.122806][ T6363] el0_svc+0x78/0x1d0 [ 234.123419][ T6363] el0t_64_sync_handler+0xcc/0xe4 [ 234.124171][ T6363] el0t_64_sync+0x1a0/0x1a4 [ 234.126312][ T27] cleanup_mnt+0x3b8/0x46c [ 234.127095][ T27] __cleanup_mnt+0x20/0x30 [ 234.127794][ T27] task_work_run+0x12c/0x1d8 [ 234.128516][ T27] do_notify_resume+0x2450/0x309c [ 234.129639][ T27] el0_svc+0xf0/0x1d0 [ 234.130290][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 234.131131][ T27] el0t_64_sync+0x1a0/0x1a4 [ 234.131876][ T27] [ 234.131876][ T27] Showing all locks held in the system: [ 234.133102][ T27] 1 lock held by khungtaskd/27: [ 234.133832][ T27] #0: ffff800014461360 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 234.135363][ T27] 2 locks held by getty/3804: [ 234.136026][ T27] #0: ffff0000d4f81098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 234.137560][ T27] #1: ffff80001bece2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 234.139532][ T6363] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.139813][ T27] 1 lock held by syz-executor/4736: [ 234.141567][ T6363] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.142343][ T27] #0: ffff0000d00400e0 (&type->s_umount_key#52){++++}-{3:3}, at: deactivate_super+0xe8/0x110 [ 234.144944][ T27] 2 locks held by syz.1.707/6363: [ 234.145692][ T27] #0: ffff0000c7adf918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xdc/0x6ac [ 234.147179][ T27] #1: ffff0000cc035468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x50/0x1fc [ 234.148715][ T27] [ 234.149276][ T27] ============================================= [ 234.149276][ T27] [ 234.150543][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 234.151605][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 234.152725][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.154286][ T27] Call trace: [ 234.154821][ T27] dump_backtrace+0x0/0x458 [ 234.155587][ T27] show_stack+0x2c/0x3c [ 234.156246][ T27] __dump_stack+0x30/0x40 [ 234.156924][ T27] dump_stack_lvl+0xf4/0x15c [ 234.157653][ T27] dump_stack+0x1c/0x5c [ 234.158295][ T27] panic+0x2fc/0x860 [ 234.158902][ T27] hung_task_panic+0x0/0x2c [ 234.159657][ T27] kthread+0x374/0x454 [ 234.160293][ T27] ret_from_fork+0x10/0x20 [ 234.161011][ T27] SMP: stopping secondary CPUs [ 234.161724][ T27] Kernel Offset: disabled [ 234.162353][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 234.163167][ T27] Memory Limit: none [ 234.508615][ T27] Rebooting in 86400 seconds..