08] do_el0_svc+0x5c/0x140 [ 189.681102][ T6408] el0_svc+0x78/0x1d4 [ 189.681928][ T6408] el0t_64_sync_handler+0xcc/0xe4 [ 189.682877][ T6408] el0t_64_sync+0x1a0/0x1a4 [ 189.684353][ T6408] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 189.686826][ T6408] gfs2: fsid=}: error -17 adding sysfs files [ 189.921029][ T6411] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 189.922503][ T6411] CPU: 1 PID: 6411 Comm: syz.1.477 Not tainted syzkaller #0 [ 189.923800][ T6411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 189.925628][ T6411] Call trace: [ 189.926310][ T6411] dump_backtrace+0x0/0x458 [ 189.927300][ T6411] show_stack+0x2c/0x3c [ 189.928188][ T6411] __dump_stack+0x30/0x40 [ 189.929184][ T6411] dump_stack_lvl+0xf4/0x15c [ 189.930201][ T6411] dump_stack+0x1c/0x5c [ 189.930988][ T6411] sysfs_create_dir_ns+0x244/0x264 [ 189.931957][ T6411] kobject_add_internal+0x594/0xc2c [ 189.932929][ T6411] kobject_init_and_add+0x128/0x194 [ 189.933969][ T6411] gfs2_sys_fs_add+0x208/0x428 [ 189.934993][ T6411] gfs2_fill_super+0xe20/0x1a9c [ 189.936047][ T6411] get_tree_bdev+0x35c/0x54c [ 189.937011][ T6411] gfs2_get_tree+0x58/0x1b8 [ 189.937940][ T6411] vfs_get_tree+0x90/0x278 [ 189.938727][ T6411] do_new_mount+0x228/0x818 [ 189.939619][ T6411] path_mount+0x57c/0xfe8 [ 189.940521][ T6411] __arm64_sys_mount+0x488/0x5f8 [ 189.941583][ T6411] invoke_syscall+0x98/0x28c [ 189.942532][ T6411] el0_svc_common+0x13c/0x258 [ 189.943528][ T6411] do_el0_svc+0x5c/0x140 [ 189.944428][ T6411] el0_svc+0x78/0x1d4 [ 189.945244][ T6411] el0t_64_sync_handler+0xcc/0xe4 [ 189.946322][ T6411] el0t_64_sync+0x1a0/0x1a4 [ 189.948822][ T6411] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 189.950951][ T6411] gfs2: fsid=}: error -17 adding sysfs files [ 190.117112][ T6414] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 190.118395][ T6414] CPU: 1 PID: 6414 Comm: syz.1.478 Not tainted syzkaller #0 [ 190.119910][ T6414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 190.121912][ T6414] Call trace: [ 190.122473][ T6414] dump_backtrace+0x0/0x458 [ 190.123403][ T6414] show_stack+0x2c/0x3c [ 190.124249][ T6414] __dump_stack+0x30/0x40 [ 190.125157][ T6414] dump_stack_lvl+0xf4/0x15c [ 190.126122][ T6414] dump_stack+0x1c/0x5c [ 190.127058][ T6414] sysfs_create_dir_ns+0x244/0x264 [ 190.128227][ T6414] kobject_add_internal+0x594/0xc2c [ 190.129340][ T6414] kobject_init_and_add+0x128/0x194 [ 190.130457][ T6414] gfs2_sys_fs_add+0x208/0x428 [ 190.131378][ T6414] gfs2_fill_super+0xe20/0x1a9c [ 190.132390][ T6414] get_tree_bdev+0x35c/0x54c [ 190.133374][ T6414] gfs2_get_tree+0x58/0x1b8 [ 190.134359][ T6414] vfs_get_tree+0x90/0x278 [ 190.135357][ T6414] do_new_mount+0x228/0x818 [ 190.136331][ T6414] path_mount+0x57c/0xfe8 [ 190.137267][ T6414] __arm64_sys_mount+0x488/0x5f8 [ 190.138256][ T6414] invoke_syscall+0x98/0x28c [ 190.139223][ T6414] el0_svc_common+0x13c/0x258 [ 190.140231][ T6414] do_el0_svc+0x5c/0x140 [ 190.141141][ T6414] el0_svc+0x78/0x1d4 [ 190.142044][ T6414] el0t_64_sync_handler+0xcc/0xe4 [ 190.143072][ T6414] el0t_64_sync+0x1a0/0x1a4 [ 190.145333][ T6414] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 190.147988][ T6414] gfs2: fsid=}: error -17 adding sysfs files [ 190.397116][ T6417] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 190.398428][ T6417] CPU: 0 PID: 6417 Comm: syz.1.479 Not tainted syzkaller #0 [ 190.399750][ T6417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 190.401684][ T6417] Call trace: [ 190.402304][ T6417] dump_backtrace+0x0/0x458 [ 190.403264][ T6417] show_stack+0x2c/0x3c [ 190.404083][ T6417] __dump_stack+0x30/0x40 [ 190.404896][ T6417] dump_stack_lvl+0xf4/0x15c [ 190.405789][ T6417] dump_stack+0x1c/0x5c [ 190.406696][ T6417] sysfs_create_dir_ns+0x244/0x264 [ 190.407832][ T6417] kobject_add_internal+0x594/0xc2c [ 190.408904][ T6417] kobject_init_and_add+0x128/0x194 [ 190.409886][ T6417] gfs2_sys_fs_add+0x208/0x428 [ 190.410826][ T6417] gfs2_fill_super+0xe20/0x1a9c [ 190.411805][ T6417] get_tree_bdev+0x35c/0x54c [ 190.412697][ T6417] gfs2_get_tree+0x58/0x1b8 [ 190.413598][ T6417] vfs_get_tree+0x90/0x278 [ 190.414409][ T6417] do_new_mount+0x228/0x818 [ 190.415294][ T6417] path_mount+0x57c/0xfe8 [ 190.416031][ T6417] __arm64_sys_mount+0x488/0x5f8 [ 190.416905][ T6417] invoke_syscall+0x98/0x28c [ 190.417755][ T6417] el0_svc_common+0x13c/0x258 [ 190.418639][ T6417] do_el0_svc+0x5c/0x140 [ 190.419457][ T6417] el0_svc+0x78/0x1d4 [ 190.420313][ T6417] el0t_64_sync_handler+0xcc/0xe4 [ 190.421289][ T6417] el0t_64_sync+0x1a0/0x1a4 [ 190.423353][ T6417] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 190.425654][ T6417] gfs2: fsid=}: error -17 adding sysfs files 1970/01/01 00:03:10 executed programs: 466 [ 190.597578][ T6420] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 190.599122][ T6420] CPU: 1 PID: 6420 Comm: syz.1.480 Not tainted syzkaller #0 [ 190.600529][ T6420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 190.602553][ T6420] Call trace: [ 190.603172][ T6420] dump_backtrace+0x0/0x458 [ 190.604144][ T6420] show_stack+0x2c/0x3c [ 190.605067][ T6420] __dump_stack+0x30/0x40 [ 190.605967][ T6420] dump_stack_lvl+0xf4/0x15c [ 190.606836][ T6420] dump_stack+0x1c/0x5c [ 190.607714][ T6420] sysfs_create_dir_ns+0x244/0x264 [ 190.608798][ T6420] kobject_add_internal+0x594/0xc2c [ 190.609882][ T6420] kobject_init_and_add+0x128/0x194 [ 190.610930][ T6420] gfs2_sys_fs_add+0x208/0x428 [ 190.611896][ T6420] gfs2_fill_super+0xe20/0x1a9c [ 190.612896][ T6420] get_tree_bdev+0x35c/0x54c [ 190.613847][ T6420] gfs2_get_tree+0x58/0x1b8 [ 190.614825][ T6420] vfs_get_tree+0x90/0x278 [ 190.615734][ T6420] do_new_mount+0x228/0x818 [ 190.616766][ T6420] path_mount+0x57c/0xfe8 [ 190.617613][ T6420] __arm64_sys_mount+0x488/0x5f8 [ 190.618570][ T6420] invoke_syscall+0x98/0x28c [ 190.619492][ T6420] el0_svc_common+0x13c/0x258 [ 190.620417][ T6420] do_el0_svc+0x5c/0x140 [ 190.621301][ T6420] el0_svc+0x78/0x1d4 [ 190.622059][ T6420] el0t_64_sync_handler+0xcc/0xe4 [ 190.623128][ T6420] el0t_64_sync+0x1a0/0x1a4 [ 190.624875][ T6420] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 190.627234][ T6420] gfs2: fsid=}: error -17 adding sysfs files [ 190.840612][ T6423] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 190.842017][ T6423] CPU: 1 PID: 6423 Comm: syz.1.481 Not tainted syzkaller #0 [ 190.843553][ T6423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 190.845613][ T6423] Call trace: [ 190.846333][ T6423] dump_backtrace+0x0/0x458 [ 190.847316][ T6423] show_stack+0x2c/0x3c [ 190.848142][ T6423] __dump_stack+0x30/0x40 [ 190.848992][ T6423] dump_stack_lvl+0xf4/0x15c [ 190.849939][ T6423] dump_stack+0x1c/0x5c [ 190.850845][ T6423] sysfs_create_dir_ns+0x244/0x264 [ 190.851940][ T6423] kobject_add_internal+0x594/0xc2c [ 190.852998][ T6423] kobject_init_and_add+0x128/0x194 [ 190.854181][ T6423] gfs2_sys_fs_add+0x208/0x428 [ 190.855277][ T6423] gfs2_fill_super+0xe20/0x1a9c [ 190.856327][ T6423] get_tree_bdev+0x35c/0x54c [ 190.857303][ T6423] gfs2_get_tree+0x58/0x1b8 [ 190.858271][ T6423] vfs_get_tree+0x90/0x278 [ 190.859211][ T6423] do_new_mount+0x228/0x818 [ 190.860206][ T6423] path_mount+0x57c/0xfe8 [ 190.861160][ T6423] __arm64_sys_mount+0x488/0x5f8 [ 190.862289][ T6423] invoke_syscall+0x98/0x28c [ 190.863277][ T6423] el0_svc_common+0x13c/0x258 [ 190.864307][ T6423] do_el0_svc+0x5c/0x140 [ 190.865152][ T6423] el0_svc+0x78/0x1d4 [ 190.865917][ T6423] el0t_64_sync_handler+0xcc/0xe4 [ 190.866883][ T6423] el0t_64_sync+0x1a0/0x1a4 [ 190.868580][ T6423] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 190.870974][ T6423] gfs2: fsid=}: error -17 adding sysfs files [ 191.030080][ T6426] set_capacity_and_notify: 12 callbacks suppressed [ 191.030090][ T6426] loop1: detected capacity change from 0 to 32768 [ 191.090377][ T6426] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 191.091645][ T6426] CPU: 1 PID: 6426 Comm: syz.1.482 Not tainted syzkaller #0 [ 191.092885][ T6426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 191.094830][ T6426] Call trace: [ 191.095450][ T6426] dump_backtrace+0x0/0x458 [ 191.096396][ T6426] show_stack+0x2c/0x3c [ 191.097292][ T6426] __dump_stack+0x30/0x40 [ 191.098249][ T6426] dump_stack_lvl+0xf4/0x15c [ 191.099185][ T6426] dump_stack+0x1c/0x5c [ 191.100081][ T6426] sysfs_create_dir_ns+0x244/0x264 [ 191.101100][ T6426] kobject_add_internal+0x594/0xc2c [ 191.102158][ T6426] kobject_init_and_add+0x128/0x194 [ 191.103199][ T6426] gfs2_sys_fs_add+0x208/0x428 [ 191.104222][ T6426] gfs2_fill_super+0xe20/0x1a9c [ 191.105214][ T6426] get_tree_bdev+0x35c/0x54c [ 191.106065][ T6426] gfs2_get_tree+0x58/0x1b8 [ 191.106879][ T6426] vfs_get_tree+0x90/0x278 [ 191.107731][ T6426] do_new_mount+0x228/0x818 [ 191.108544][ T6426] path_mount+0x57c/0xfe8 [ 191.109349][ T6426] __arm64_sys_mount+0x488/0x5f8 [ 191.110246][ T6426] invoke_syscall+0x98/0x28c [ 191.111108][ T6426] el0_svc_common+0x13c/0x258 [ 191.112080][ T6426] do_el0_svc+0x5c/0x140 [ 191.112903][ T6426] el0_svc+0x78/0x1d4 [ 191.113643][ T6426] el0t_64_sync_handler+0xcc/0xe4 [ 191.114609][ T6426] el0t_64_sync+0x1a0/0x1a4 [ 191.118324][ T6426] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 191.120876][ T6426] gfs2: fsid=}: error -17 adding sysfs files [ 191.250441][ T6429] loop1: detected capacity change from 0 to 32768 [ 191.312628][ T6429] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 191.313994][ T6429] CPU: 1 PID: 6429 Comm: syz.1.483 Not tainted syzkaller #0 [ 191.315375][ T6429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 191.317220][ T6429] Call trace: [ 191.317891][ T6429] dump_backtrace+0x0/0x458 [ 191.318849][ T6429] show_stack+0x2c/0x3c [ 191.319757][ T6429] __dump_stack+0x30/0x40 [ 191.320656][ T6429] dump_stack_lvl+0xf4/0x15c [ 191.321496][ T6429] dump_stack+0x1c/0x5c [ 191.322306][ T6429] sysfs_create_dir_ns+0x244/0x264 [ 191.323325][ T6429] kobject_add_internal+0x594/0xc2c [ 191.324336][ T6429] kobject_init_and_add+0x128/0x194 [ 191.325407][ T6429] gfs2_sys_fs_add+0x208/0x428 [ 191.326421][ T6429] gfs2_fill_super+0xe20/0x1a9c [ 191.327403][ T6429] get_tree_bdev+0x35c/0x54c [ 191.328348][ T6429] gfs2_get_tree+0x58/0x1b8 [ 191.329107][ T6429] vfs_get_tree+0x90/0x278 [ 191.329912][ T6429] do_new_mount+0x228/0x818 [ 191.330796][ T6429] path_mount+0x57c/0xfe8 [ 191.331614][ T6429] __arm64_sys_mount+0x488/0x5f8 [ 191.332592][ T6429] invoke_syscall+0x98/0x28c [ 191.333484][ T6429] el0_svc_common+0x13c/0x258 [ 191.334487][ T6429] do_el0_svc+0x5c/0x140 [ 191.335373][ T6429] el0_svc+0x78/0x1d4 [ 191.336133][ T6429] el0t_64_sync_handler+0xcc/0xe4 [ 191.337072][ T6429] el0t_64_sync+0x1a0/0x1a4 [ 191.339447][ T6429] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 191.341588][ T6429] gfs2: fsid=}: error -17 adding sysfs files [ 191.473962][ T6432] loop1: detected capacity change from 0 to 32768 [ 191.511646][ T6432] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 191.512929][ T6432] CPU: 0 PID: 6432 Comm: syz.1.484 Not tainted syzkaller #0 [ 191.514525][ T6432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 191.516572][ T6432] Call trace: [ 191.517235][ T6432] dump_backtrace+0x0/0x458 [ 191.518197][ T6432] show_stack+0x2c/0x3c [ 191.519136][ T6432] __dump_stack+0x30/0x40 [ 191.520064][ T6432] dump_stack_lvl+0xf4/0x15c [ 191.521020][ T6432] dump_stack+0x1c/0x5c [ 191.521851][ T6432] sysfs_create_dir_ns+0x244/0x264 [ 191.522877][ T6432] kobject_add_internal+0x594/0xc2c [ 191.523951][ T6432] kobject_init_and_add+0x128/0x194 [ 191.524964][ T6432] gfs2_sys_fs_add+0x208/0x428 [ 191.525934][ T6432] gfs2_fill_super+0xe20/0x1a9c [ 191.526854][ T6432] get_tree_bdev+0x35c/0x54c [ 191.527741][ T6432] gfs2_get_tree+0x58/0x1b8 [ 191.528534][ T6432] vfs_get_tree+0x90/0x278 [ 191.529346][ T6432] do_new_mount+0x228/0x818 [ 191.530185][ T6432] path_mount+0x57c/0xfe8 [ 191.531015][ T6432] __arm64_sys_mount+0x488/0x5f8 [ 191.531979][ T6432] invoke_syscall+0x98/0x28c [ 191.532901][ T6432] el0_svc_common+0x13c/0x258 [ 191.533824][ T6432] do_el0_svc+0x5c/0x140 [ 191.534688][ T6432] el0_svc+0x78/0x1d4 [ 191.535592][ T6432] el0t_64_sync_handler+0xcc/0xe4 [ 191.536732][ T6432] el0t_64_sync+0x1a0/0x1a4 [ 191.538264][ T6432] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 191.540914][ T6432] gfs2: fsid=}: error -17 adding sysfs files [ 191.706189][ T6435] loop1: detected capacity change from 0 to 32768 [ 191.761597][ T6435] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 191.763097][ T6435] CPU: 1 PID: 6435 Comm: syz.1.485 Not tainted syzkaller #0 [ 191.764591][ T6435] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 191.766824][ T6435] Call trace: [ 191.767553][ T6435] dump_backtrace+0x0/0x458 [ 191.768598][ T6435] show_stack+0x2c/0x3c [ 191.769485][ T6435] __dump_stack+0x30/0x40 [ 191.770398][ T6435] dump_stack_lvl+0xf4/0x15c [ 191.771270][ T6435] dump_stack+0x1c/0x5c [ 191.772075][ T6435] sysfs_create_dir_ns+0x244/0x264 [ 191.773116][ T6435] kobject_add_internal+0x594/0xc2c [ 191.774236][ T6435] kobject_init_and_add+0x128/0x194 [ 191.775378][ T6435] gfs2_sys_fs_add+0x208/0x428 [ 191.776401][ T6435] gfs2_fill_super+0xe20/0x1a9c [ 191.777397][ T6435] get_tree_bdev+0x35c/0x54c [ 191.778303][ T6435] gfs2_get_tree+0x58/0x1b8 [ 191.779254][ T6435] vfs_get_tree+0x90/0x278 [ 191.780153][ T6435] do_new_mount+0x228/0x818 [ 191.781128][ T6435] path_mount+0x57c/0xfe8 [ 191.782002][ T6435] __arm64_sys_mount+0x488/0x5f8 [ 191.782966][ T6435] invoke_syscall+0x98/0x28c [ 191.783770][ T6435] el0_svc_common+0x13c/0x258 [ 191.784661][ T6435] do_el0_svc+0x5c/0x140 [ 191.785499][ T6435] el0_svc+0x78/0x1d4 [ 191.786279][ T6435] el0t_64_sync_handler+0xcc/0xe4 [ 191.787233][ T6435] el0t_64_sync+0x1a0/0x1a4 [ 191.789723][ T6435] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 191.792397][ T6435] gfs2: fsid=}: error -17 adding sysfs files [ 192.012358][ T6438] loop1: detected capacity change from 0 to 32768 [ 192.051755][ T6438] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 192.053070][ T6438] CPU: 0 PID: 6438 Comm: syz.1.486 Not tainted syzkaller #0 [ 192.054465][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 192.056544][ T6438] Call trace: [ 192.057208][ T6438] dump_backtrace+0x0/0x458 [ 192.058128][ T6438] show_stack+0x2c/0x3c [ 192.058993][ T6438] __dump_stack+0x30/0x40 [ 192.059813][ T6438] dump_stack_lvl+0xf4/0x15c [ 192.060696][ T6438] dump_stack+0x1c/0x5c [ 192.061561][ T6438] sysfs_create_dir_ns+0x244/0x264 [ 192.062528][ T6438] kobject_add_internal+0x594/0xc2c [ 192.063487][ T6438] kobject_init_and_add+0x128/0x194 [ 192.064376][ T6438] gfs2_sys_fs_add+0x208/0x428 [ 192.065300][ T6438] gfs2_fill_super+0xe20/0x1a9c [ 192.066202][ T6438] get_tree_bdev+0x35c/0x54c [ 192.067094][ T6438] gfs2_get_tree+0x58/0x1b8 [ 192.068058][ T6438] vfs_get_tree+0x90/0x278 [ 192.069020][ T6438] do_new_mount+0x228/0x818 [ 192.069989][ T6438] path_mount+0x57c/0xfe8 [ 192.070948][ T6438] __arm64_sys_mount+0x488/0x5f8 [ 192.072019][ T6438] invoke_syscall+0x98/0x28c [ 192.072904][ T6438] el0_svc_common+0x13c/0x258 [ 192.073854][ T6438] do_el0_svc+0x5c/0x140 [ 192.074676][ T6438] el0_svc+0x78/0x1d4 [ 192.075415][ T6438] el0t_64_sync_handler+0xcc/0xe4 [ 192.076525][ T6438] el0t_64_sync+0x1a0/0x1a4 [ 192.077624][ T6438] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 192.080295][ T6438] gfs2: fsid=}: error -17 adding sysfs files [ 192.247672][ T6441] loop1: detected capacity change from 0 to 32768 [ 192.297600][ T6441] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 192.299546][ T6441] CPU: 0 PID: 6441 Comm: syz.1.487 Not tainted syzkaller #0 [ 192.300980][ T6441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 192.302931][ T6441] Call trace: [ 192.303564][ T6441] dump_backtrace+0x0/0x458 [ 192.304460][ T6441] show_stack+0x2c/0x3c [ 192.305282][ T6441] __dump_stack+0x30/0x40 [ 192.306136][ T6441] dump_stack_lvl+0xf4/0x15c [ 192.307112][ T6441] dump_stack+0x1c/0x5c [ 192.308016][ T6441] sysfs_create_dir_ns+0x244/0x264 [ 192.309082][ T6441] kobject_add_internal+0x594/0xc2c [ 192.310171][ T6441] kobject_init_and_add+0x128/0x194 [ 192.311264][ T6441] gfs2_sys_fs_add+0x208/0x428 [ 192.312264][ T6441] gfs2_fill_super+0xe20/0x1a9c [ 192.313286][ T6441] get_tree_bdev+0x35c/0x54c [ 192.314340][ T6441] gfs2_get_tree+0x58/0x1b8 [ 192.315261][ T6441] vfs_get_tree+0x90/0x278 [ 192.316155][ T6441] do_new_mount+0x228/0x818 [ 192.317062][ T6441] path_mount+0x57c/0xfe8 [ 192.317984][ T6441] __arm64_sys_mount+0x488/0x5f8 [ 192.319011][ T6441] invoke_syscall+0x98/0x28c [ 192.319893][ T6441] el0_svc_common+0x13c/0x258 [ 192.320754][ T6441] do_el0_svc+0x5c/0x140 [ 192.321566][ T6441] el0_svc+0x78/0x1d4 [ 192.322372][ T6441] el0t_64_sync_handler+0xcc/0xe4 [ 192.323339][ T6441] el0t_64_sync+0x1a0/0x1a4 [ 192.325753][ T6441] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 192.328721][ T6441] gfs2: fsid=}: error -17 adding sysfs files [ 192.507171][ T2063] ieee802154 phy0 wpan0: encryption failed: -22 [ 192.508523][ T2063] ieee802154 phy1 wpan1: encryption failed: -22 [ 192.512122][ T6444] loop1: detected capacity change from 0 to 32768 [ 192.521572][ T6444] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 192.522979][ T6444] CPU: 1 PID: 6444 Comm: syz.1.488 Not tainted syzkaller #0 [ 192.524507][ T6444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 192.526281][ T6444] Call trace: [ 192.526939][ T6444] dump_backtrace+0x0/0x458 [ 192.527771][ T6444] show_stack+0x2c/0x3c [ 192.528649][ T6444] __dump_stack+0x30/0x40 [ 192.529571][ T6444] dump_stack_lvl+0xf4/0x15c [ 192.530514][ T6444] dump_stack+0x1c/0x5c [ 192.531325][ T6444] sysfs_create_dir_ns+0x244/0x264 [ 192.532443][ T6444] kobject_add_internal+0x594/0xc2c [ 192.533595][ T6444] kobject_init_and_add+0x128/0x194 [ 192.534683][ T6444] gfs2_sys_fs_add+0x208/0x428 [ 192.535624][ T6444] gfs2_fill_super+0xe20/0x1a9c [ 192.536669][ T6444] get_tree_bdev+0x35c/0x54c [ 192.537612][ T6444] gfs2_get_tree+0x58/0x1b8 [ 192.538593][ T6444] vfs_get_tree+0x90/0x278 [ 192.539546][ T6444] do_new_mount+0x228/0x818 [ 192.540502][ T6444] path_mount+0x57c/0xfe8 [ 192.541392][ T6444] __arm64_sys_mount+0x488/0x5f8 [ 192.542432][ T6444] invoke_syscall+0x98/0x28c [ 192.543422][ T6444] el0_svc_common+0x13c/0x258 [ 192.544404][ T6444] do_el0_svc+0x5c/0x140 [ 192.545349][ T6444] el0_svc+0x78/0x1d4 [ 192.546242][ T6444] el0t_64_sync_handler+0xcc/0xe4 [ 192.547345][ T6444] el0t_64_sync+0x1a0/0x1a4 [ 192.548900][ T6444] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 192.551730][ T6444] gfs2: fsid=}: error -17 adding sysfs files [ 192.723827][ T6447] loop1: detected capacity change from 0 to 32768 [ 192.735274][ T6447] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 192.736886][ T6447] CPU: 0 PID: 6447 Comm: syz.1.489 Not tainted syzkaller #0 [ 192.738421][ T6447] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 192.740488][ T6447] Call trace: [ 192.741155][ T6447] dump_backtrace+0x0/0x458 [ 192.742091][ T6447] show_stack+0x2c/0x3c [ 192.742946][ T6447] __dump_stack+0x30/0x40 [ 192.743957][ T6447] dump_stack_lvl+0xf4/0x15c [ 192.744896][ T6447] dump_stack+0x1c/0x5c [ 192.745771][ T6447] sysfs_create_dir_ns+0x244/0x264 [ 192.746865][ T6447] kobject_add_internal+0x594/0xc2c [ 192.747970][ T6447] kobject_init_and_add+0x128/0x194 [ 192.748994][ T6447] gfs2_sys_fs_add+0x208/0x428 [ 192.749894][ T6447] gfs2_fill_super+0xe20/0x1a9c [ 192.750770][ T6447] get_tree_bdev+0x35c/0x54c [ 192.751563][ T6447] gfs2_get_tree+0x58/0x1b8 [ 192.752399][ T6447] vfs_get_tree+0x90/0x278 [ 192.753226][ T6447] do_new_mount+0x228/0x818 [ 192.754035][ T6447] path_mount+0x57c/0xfe8 [ 192.754882][ T6447] __arm64_sys_mount+0x488/0x5f8 [ 192.755847][ T6447] invoke_syscall+0x98/0x28c [ 192.756732][ T6447] el0_svc_common+0x13c/0x258 [ 192.757651][ T6447] do_el0_svc+0x5c/0x140 [ 192.758418][ T6447] el0_svc+0x78/0x1d4 [ 192.759190][ T6447] el0t_64_sync_handler+0xcc/0xe4 [ 192.760306][ T6447] el0t_64_sync+0x1a0/0x1a4 [ 192.762768][ T6447] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 192.765403][ T6447] gfs2: fsid=}: error -17 adding sysfs files [ 192.970623][ T6450] loop1: detected capacity change from 0 to 32768 [ 193.007239][ T6450] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 193.008561][ T6450] CPU: 1 PID: 6450 Comm: syz.1.490 Not tainted syzkaller #0 [ 193.010024][ T6450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 193.011844][ T6450] Call trace: [ 193.012486][ T6450] dump_backtrace+0x0/0x458 [ 193.013323][ T6450] show_stack+0x2c/0x3c [ 193.014113][ T6450] __dump_stack+0x30/0x40 [ 193.014962][ T6450] dump_stack_lvl+0xf4/0x15c [ 193.015862][ T6450] dump_stack+0x1c/0x5c [ 193.016749][ T6450] sysfs_create_dir_ns+0x244/0x264 [ 193.017819][ T6450] kobject_add_internal+0x594/0xc2c [ 193.018868][ T6450] kobject_init_and_add+0x128/0x194 [ 193.019978][ T6450] gfs2_sys_fs_add+0x208/0x428 [ 193.021003][ T6450] gfs2_fill_super+0xe20/0x1a9c [ 193.022131][ T6450] get_tree_bdev+0x35c/0x54c [ 193.023130][ T6450] gfs2_get_tree+0x58/0x1b8 [ 193.024025][ T6450] vfs_get_tree+0x90/0x278 [ 193.024932][ T6450] do_new_mount+0x228/0x818 [ 193.025854][ T6450] path_mount+0x57c/0xfe8 [ 193.026686][ T6450] __arm64_sys_mount+0x488/0x5f8 [ 193.027658][ T6450] invoke_syscall+0x98/0x28c [ 193.028628][ T6450] el0_svc_common+0x13c/0x258 [ 193.029550][ T6450] do_el0_svc+0x5c/0x140 [ 193.030367][ T6450] el0_svc+0x78/0x1d4 [ 193.031158][ T6450] el0t_64_sync_handler+0xcc/0xe4 [ 193.032186][ T6450] el0t_64_sync+0x1a0/0x1a4 [ 193.034544][ T6450] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 193.037309][ T6450] gfs2: fsid=}: error -17 adding sysfs files [ 193.177766][ T6453] loop1: detected capacity change from 0 to 32768 [ 193.227109][ T6453] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 193.228510][ T6453] CPU: 1 PID: 6453 Comm: syz.1.491 Not tainted syzkaller #0 [ 193.229986][ T6453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 193.232009][ T6453] Call trace: [ 193.232666][ T6453] dump_backtrace+0x0/0x458 [ 193.233560][ T6453] show_stack+0x2c/0x3c [ 193.234365][ T6453] __dump_stack+0x30/0x40 [ 193.235196][ T6453] dump_stack_lvl+0xf4/0x15c [ 193.236113][ T6453] dump_stack+0x1c/0x5c [ 193.236984][ T6453] sysfs_create_dir_ns+0x244/0x264 [ 193.238082][ T6453] kobject_add_internal+0x594/0xc2c [ 193.239093][ T6453] kobject_init_and_add+0x128/0x194 [ 193.240090][ T6453] gfs2_sys_fs_add+0x208/0x428 [ 193.241148][ T6453] gfs2_fill_super+0xe20/0x1a9c [ 193.242081][ T6453] get_tree_bdev+0x35c/0x54c [ 193.243037][ T6453] gfs2_get_tree+0x58/0x1b8 [ 193.243895][ T6453] vfs_get_tree+0x90/0x278 [ 193.244834][ T6453] do_new_mount+0x228/0x818 [ 193.245767][ T6453] path_mount+0x57c/0xfe8 [ 193.246641][ T6453] __arm64_sys_mount+0x488/0x5f8 [ 193.247643][ T6453] invoke_syscall+0x98/0x28c [ 193.248669][ T6453] el0_svc_common+0x13c/0x258 [ 193.249671][ T6453] do_el0_svc+0x5c/0x140 [ 193.250494][ T6453] el0_svc+0x78/0x1d4 [ 193.251382][ T6453] el0t_64_sync_handler+0xcc/0xe4 [ 193.252400][ T6453] el0t_64_sync+0x1a0/0x1a4 [ 193.253971][ T6453] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 193.257163][ T6453] gfs2: fsid=}: error -17 adding sysfs files [ 193.596836][ T6456] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 193.598256][ T6456] CPU: 0 PID: 6456 Comm: syz.1.492 Not tainted syzkaller #0 [ 193.599637][ T6456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 193.601578][ T6456] Call trace: [ 193.602173][ T6456] dump_backtrace+0x0/0x458 [ 193.603033][ T6456] show_stack+0x2c/0x3c [ 193.603842][ T6456] __dump_stack+0x30/0x40 [ 193.604676][ T6456] dump_stack_lvl+0xf4/0x15c [ 193.605531][ T6456] dump_stack+0x1c/0x5c [ 193.606340][ T6456] sysfs_create_dir_ns+0x244/0x264 [ 193.607429][ T6456] kobject_add_internal+0x594/0xc2c [ 193.608470][ T6456] kobject_init_and_add+0x128/0x194 [ 193.609520][ T6456] gfs2_sys_fs_add+0x208/0x428 [ 193.610551][ T6456] gfs2_fill_super+0xe20/0x1a9c [ 193.611614][ T6456] get_tree_bdev+0x35c/0x54c [ 193.612521][ T6456] gfs2_get_tree+0x58/0x1b8 [ 193.613486][ T6456] vfs_get_tree+0x90/0x278 [ 193.614507][ T6456] do_new_mount+0x228/0x818 [ 193.615478][ T6456] path_mount+0x57c/0xfe8 [ 193.616467][ T6456] __arm64_sys_mount+0x488/0x5f8 [ 193.617607][ T6456] invoke_syscall+0x98/0x28c [ 193.618684][ T6456] el0_svc_common+0x13c/0x258 [ 193.619758][ T6456] do_el0_svc+0x5c/0x140 [ 193.620598][ T6456] el0_svc+0x78/0x1d4 [ 193.621405][ T6456] el0t_64_sync_handler+0xcc/0xe4 [ 193.622359][ T6456] el0t_64_sync+0x1a0/0x1a4 [ 193.624670][ T6456] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 193.630202][ T6456] gfs2: fsid=}: error -17 adding sysfs files [ 193.887144][ T6459] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 193.892044][ T6459] CPU: 0 PID: 6459 Comm: syz.1.493 Not tainted syzkaller #0 [ 193.893384][ T6459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 193.895311][ T6459] Call trace: [ 193.895946][ T6459] dump_backtrace+0x0/0x458 [ 193.897000][ T6459] show_stack+0x2c/0x3c [ 193.897888][ T6459] __dump_stack+0x30/0x40 [ 193.898865][ T6459] dump_stack_lvl+0xf4/0x15c [ 193.899889][ T6459] dump_stack+0x1c/0x5c [ 193.900823][ T6459] sysfs_create_dir_ns+0x244/0x264 [ 193.901885][ T6459] kobject_add_internal+0x594/0xc2c [ 193.902921][ T6459] kobject_init_and_add+0x128/0x194 [ 193.904007][ T6459] gfs2_sys_fs_add+0x208/0x428 [ 193.904983][ T6459] gfs2_fill_super+0xe20/0x1a9c [ 193.906032][ T6459] get_tree_bdev+0x35c/0x54c [ 193.907068][ T6459] gfs2_get_tree+0x58/0x1b8 [ 193.908084][ T6459] vfs_get_tree+0x90/0x278 [ 193.909036][ T6459] do_new_mount+0x228/0x818 [ 193.909953][ T6459] path_mount+0x57c/0xfe8 [ 193.910848][ T6459] __arm64_sys_mount+0x488/0x5f8 [ 193.911837][ T6459] invoke_syscall+0x98/0x28c [ 193.912878][ T6459] el0_svc_common+0x13c/0x258 [ 193.913896][ T6459] do_el0_svc+0x5c/0x140 [ 193.914865][ T6459] el0_svc+0x78/0x1d4 [ 193.915729][ T6459] el0t_64_sync_handler+0xcc/0xe4 [ 193.916707][ T6459] el0t_64_sync+0x1a0/0x1a4 [ 193.917990][ T6459] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 193.920523][ T6459] gfs2: fsid=}: error -17 adding sysfs files [ 194.062057][ T6462] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 194.063480][ T6462] CPU: 0 PID: 6462 Comm: syz.1.494 Not tainted syzkaller #0 [ 194.065089][ T6462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 194.067406][ T6462] Call trace: [ 194.068095][ T6462] dump_backtrace+0x0/0x458 [ 194.069049][ T6462] show_stack+0x2c/0x3c [ 194.069916][ T6462] __dump_stack+0x30/0x40 [ 194.070762][ T6462] dump_stack_lvl+0xf4/0x15c [ 194.071691][ T6462] dump_stack+0x1c/0x5c [ 194.072559][ T6462] sysfs_create_dir_ns+0x244/0x264 [ 194.073509][ T6462] kobject_add_internal+0x594/0xc2c [ 194.074492][ T6462] kobject_init_and_add+0x128/0x194 [ 194.075578][ T6462] gfs2_sys_fs_add+0x208/0x428 [ 194.076574][ T6462] gfs2_fill_super+0xe20/0x1a9c [ 194.077623][ T6462] get_tree_bdev+0x35c/0x54c [ 194.078556][ T6462] gfs2_get_tree+0x58/0x1b8 [ 194.079402][ T6462] vfs_get_tree+0x90/0x278 [ 194.080256][ T6462] do_new_mount+0x228/0x818 [ 194.081127][ T6462] path_mount+0x57c/0xfe8 [ 194.081965][ T6462] __arm64_sys_mount+0x488/0x5f8 [ 194.082889][ T6462] invoke_syscall+0x98/0x28c [ 194.083714][ T6462] el0_svc_common+0x13c/0x258 [ 194.084616][ T6462] do_el0_svc+0x5c/0x140 [ 194.085405][ T6462] el0_svc+0x78/0x1d4 [ 194.086149][ T6462] el0t_64_sync_handler+0xcc/0xe4 [ 194.087061][ T6462] el0t_64_sync+0x1a0/0x1a4 [ 194.090064][ T6462] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 194.092466][ T6462] gfs2: fsid=}: error -17 adding sysfs files [ 194.282854][ T6465] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 194.284210][ T6465] CPU: 1 PID: 6465 Comm: syz.1.495 Not tainted syzkaller #0 [ 194.285594][ T6465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 194.287622][ T6465] Call trace: [ 194.288275][ T6465] dump_backtrace+0x0/0x458 [ 194.289186][ T6465] show_stack+0x2c/0x3c [ 194.290051][ T6465] __dump_stack+0x30/0x40 [ 194.290960][ T6465] dump_stack_lvl+0xf4/0x15c [ 194.291883][ T6465] dump_stack+0x1c/0x5c [ 194.292711][ T6465] sysfs_create_dir_ns+0x244/0x264 [ 194.293731][ T6465] kobject_add_internal+0x594/0xc2c [ 194.294807][ T6465] kobject_init_and_add+0x128/0x194 [ 194.295851][ T6465] gfs2_sys_fs_add+0x208/0x428 [ 194.296854][ T6465] gfs2_fill_super+0xe20/0x1a9c [ 194.297866][ T6465] get_tree_bdev+0x35c/0x54c [ 194.298755][ T6465] gfs2_get_tree+0x58/0x1b8 [ 194.299637][ T6465] vfs_get_tree+0x90/0x278 [ 194.300389][ T6465] do_new_mount+0x228/0x818 [ 194.301193][ T6465] path_mount+0x57c/0xfe8 [ 194.301989][ T6465] __arm64_sys_mount+0x488/0x5f8 [ 194.302904][ T6465] invoke_syscall+0x98/0x28c [ 194.303790][ T6465] el0_svc_common+0x13c/0x258 [ 194.304683][ T6465] do_el0_svc+0x5c/0x140 [ 194.305521][ T6465] el0_svc+0x78/0x1d4 [ 194.306286][ T6465] el0t_64_sync_handler+0xcc/0xe4 [ 194.307247][ T6465] el0t_64_sync+0x1a0/0x1a4 [ 194.308261][ T6465] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 194.310395][ T6465] gfs2: fsid=}: error -17 adding sysfs files [ 194.480769][ T6468] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 194.482056][ T6468] CPU: 1 PID: 6468 Comm: syz.1.496 Not tainted syzkaller #0 [ 194.483305][ T6468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 194.485170][ T6468] Call trace: [ 194.485800][ T6468] dump_backtrace+0x0/0x458 [ 194.486677][ T6468] show_stack+0x2c/0x3c [ 194.487408][ T6468] __dump_stack+0x30/0x40 [ 194.488179][ T6468] dump_stack_lvl+0xf4/0x15c [ 194.489027][ T6468] dump_stack+0x1c/0x5c [ 194.489818][ T6468] sysfs_create_dir_ns+0x244/0x264 [ 194.490777][ T6468] kobject_add_internal+0x594/0xc2c [ 194.491733][ T6468] kobject_init_and_add+0x128/0x194 [ 194.492658][ T6468] gfs2_sys_fs_add+0x208/0x428 [ 194.493584][ T6468] gfs2_fill_super+0xe20/0x1a9c [ 194.494572][ T6468] get_tree_bdev+0x35c/0x54c [ 194.495470][ T6468] gfs2_get_tree+0x58/0x1b8 [ 194.496319][ T6468] vfs_get_tree+0x90/0x278 [ 194.497146][ T6468] do_new_mount+0x228/0x818 [ 194.497983][ T6468] path_mount+0x57c/0xfe8 [ 194.498791][ T6468] __arm64_sys_mount+0x488/0x5f8 [ 194.499722][ T6468] invoke_syscall+0x98/0x28c [ 194.500574][ T6468] el0_svc_common+0x13c/0x258 [ 194.501417][ T6468] do_el0_svc+0x5c/0x140 [ 194.502203][ T6468] el0_svc+0x78/0x1d4 [ 194.502934][ T6468] el0t_64_sync_handler+0xcc/0xe4 [ 194.503902][ T6468] el0t_64_sync+0x1a0/0x1a4 [ 194.506381][ T6468] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 194.508546][ T6468] gfs2: fsid=}: error -17 adding sysfs files [ 194.691066][ T6471] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 194.693160][ T6471] CPU: 1 PID: 6471 Comm: syz.1.497 Not tainted syzkaller #0 [ 194.694594][ T6471] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 194.696669][ T6471] Call trace: [ 194.697354][ T6471] dump_backtrace+0x0/0x458 [ 194.698287][ T6471] show_stack+0x2c/0x3c [ 194.699205][ T6471] __dump_stack+0x30/0x40 [ 194.700129][ T6471] dump_stack_lvl+0xf4/0x15c [ 194.701114][ T6471] dump_stack+0x1c/0x5c [ 194.702010][ T6471] sysfs_create_dir_ns+0x244/0x264 [ 194.703137][ T6471] kobject_add_internal+0x594/0xc2c [ 194.704225][ T6471] kobject_init_and_add+0x128/0x194 [ 194.705332][ T6471] gfs2_sys_fs_add+0x208/0x428 [ 194.706328][ T6471] gfs2_fill_super+0xe20/0x1a9c [ 194.707335][ T6471] get_tree_bdev+0x35c/0x54c [ 194.708229][ T6471] gfs2_get_tree+0x58/0x1b8 [ 194.709184][ T6471] vfs_get_tree+0x90/0x278 [ 194.710094][ T6471] do_new_mount+0x228/0x818 [ 194.710997][ T6471] path_mount+0x57c/0xfe8 [ 194.711834][ T6471] __arm64_sys_mount+0x488/0x5f8 [ 194.712843][ T6471] invoke_syscall+0x98/0x28c [ 194.713842][ T6471] el0_svc_common+0x13c/0x258 [ 194.714805][ T6471] do_el0_svc+0x5c/0x140 [ 194.715695][ T6471] el0_svc+0x78/0x1d4 [ 194.716619][ T6471] el0t_64_sync_handler+0xcc/0xe4 [ 194.717777][ T6471] el0t_64_sync+0x1a0/0x1a4 [ 194.720258][ T6471] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 194.722861][ T6471] gfs2: fsid=}: error -17 adding sysfs files [ 194.942143][ T6474] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 194.943589][ T6474] CPU: 1 PID: 6474 Comm: syz.1.498 Not tainted syzkaller #0 [ 194.945021][ T6474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 194.947149][ T6474] Call trace: [ 194.947891][ T6474] dump_backtrace+0x0/0x458 [ 194.948894][ T6474] show_stack+0x2c/0x3c [ 194.949822][ T6474] __dump_stack+0x30/0x40 [ 194.950680][ T6474] dump_stack_lvl+0xf4/0x15c [ 194.951516][ T6474] dump_stack+0x1c/0x5c [ 194.952323][ T6474] sysfs_create_dir_ns+0x244/0x264 [ 194.953472][ T6474] kobject_add_internal+0x594/0xc2c [ 194.954650][ T6474] kobject_init_and_add+0x128/0x194 [ 194.955702][ T6474] gfs2_sys_fs_add+0x208/0x428 [ 194.956648][ T6474] gfs2_fill_super+0xe20/0x1a9c [ 194.957627][ T6474] get_tree_bdev+0x35c/0x54c [ 194.958550][ T6474] gfs2_get_tree+0x58/0x1b8 [ 194.959346][ T6474] vfs_get_tree+0x90/0x278 [ 194.960188][ T6474] do_new_mount+0x228/0x818 [ 194.961016][ T6474] path_mount+0x57c/0xfe8 [ 194.961831][ T6474] __arm64_sys_mount+0x488/0x5f8 [ 194.962830][ T6474] invoke_syscall+0x98/0x28c [ 194.963778][ T6474] el0_svc_common+0x13c/0x258 [ 194.964711][ T6474] do_el0_svc+0x5c/0x140 [ 194.965534][ T6474] el0_svc+0x78/0x1d4 [ 194.966368][ T6474] el0t_64_sync_handler+0xcc/0xe4 [ 194.967264][ T6474] el0t_64_sync+0x1a0/0x1a4 [ 194.969551][ T6474] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 194.971929][ T6474] gfs2: fsid=}: error -17 adding sysfs files [ 195.257118][ T6477] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 195.258719][ T6477] CPU: 0 PID: 6477 Comm: syz.1.499 Not tainted syzkaller #0 [ 195.260251][ T6477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 195.262289][ T6477] Call trace: [ 195.262931][ T6477] dump_backtrace+0x0/0x458 [ 195.263895][ T6477] show_stack+0x2c/0x3c [ 195.264777][ T6477] __dump_stack+0x30/0x40 [ 195.265684][ T6477] dump_stack_lvl+0xf4/0x15c [ 195.266550][ T6477] dump_stack+0x1c/0x5c [ 195.267325][ T6477] sysfs_create_dir_ns+0x244/0x264 [ 195.268303][ T6477] kobject_add_internal+0x594/0xc2c [ 195.269319][ T6477] kobject_init_and_add+0x128/0x194 [ 195.270298][ T6477] gfs2_sys_fs_add+0x208/0x428 [ 195.271205][ T6477] gfs2_fill_super+0xe20/0x1a9c [ 195.272198][ T6477] get_tree_bdev+0x35c/0x54c [ 195.273156][ T6477] gfs2_get_tree+0x58/0x1b8 [ 195.274116][ T6477] vfs_get_tree+0x90/0x278 [ 195.275056][ T6477] do_new_mount+0x228/0x818 [ 195.276056][ T6477] path_mount+0x57c/0xfe8 [ 195.276970][ T6477] __arm64_sys_mount+0x488/0x5f8 [ 195.277941][ T6477] invoke_syscall+0x98/0x28c [ 195.278798][ T6477] el0_svc_common+0x13c/0x258 [ 195.279653][ T6477] do_el0_svc+0x5c/0x140 [ 195.280473][ T6477] el0_svc+0x78/0x1d4 [ 195.281236][ T6477] el0t_64_sync_handler+0xcc/0xe4 [ 195.282176][ T6477] el0t_64_sync+0x1a0/0x1a4 [ 195.283271][ T6477] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 195.285574][ T6477] gfs2: fsid=}: error -17 adding sysfs files [ 195.501134][ T6480] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 195.502517][ T6480] CPU: 0 PID: 6480 Comm: syz.1.500 Not tainted syzkaller #0 [ 195.503789][ T6480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 195.505560][ T6480] Call trace: [ 195.506212][ T6480] dump_backtrace+0x0/0x458 [ 195.507167][ T6480] show_stack+0x2c/0x3c [ 195.508016][ T6480] __dump_stack+0x30/0x40 [ 195.508809][ T6480] dump_stack_lvl+0xf4/0x15c [ 195.509760][ T6480] dump_stack+0x1c/0x5c [ 195.510617][ T6480] sysfs_create_dir_ns+0x244/0x264 [ 195.511689][ T6480] kobject_add_internal+0x594/0xc2c [ 195.512725][ T6480] kobject_init_and_add+0x128/0x194 [ 195.513725][ T6480] gfs2_sys_fs_add+0x208/0x428 [ 195.514666][ T6480] gfs2_fill_super+0xe20/0x1a9c [ 195.515597][ T6480] get_tree_bdev+0x35c/0x54c [ 195.516444][ T6480] gfs2_get_tree+0x58/0x1b8 [ 195.517300][ T6480] vfs_get_tree+0x90/0x278 [ 195.518144][ T6480] do_new_mount+0x228/0x818 [ 195.519054][ T6480] path_mount+0x57c/0xfe8 [ 195.519891][ T6480] __arm64_sys_mount+0x488/0x5f8 [ 195.520848][ T6480] invoke_syscall+0x98/0x28c [ 195.521811][ T6480] el0_svc_common+0x13c/0x258 [ 195.522801][ T6480] do_el0_svc+0x5c/0x140 [ 195.523710][ T6480] el0_svc+0x78/0x1d4 [ 195.524536][ T6480] el0t_64_sync_handler+0xcc/0xe4 [ 195.525572][ T6480] el0t_64_sync+0x1a0/0x1a4 [ 195.527396][ T6480] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 195.530040][ T6480] gfs2: fsid=}: error -17 adding sysfs files 1970/01/01 00:03:15 executed programs: 487 [ 195.670918][ T6483] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 195.672219][ T6483] CPU: 1 PID: 6483 Comm: syz.1.501 Not tainted syzkaller #0 [ 195.673533][ T6483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 195.675412][ T6483] Call trace: [ 195.676032][ T6483] dump_backtrace+0x0/0x458 [ 195.677000][ T6483] show_stack+0x2c/0x3c [ 195.677898][ T6483] __dump_stack+0x30/0x40 [ 195.678733][ T6483] dump_stack_lvl+0xf4/0x15c [ 195.679657][ T6483] dump_stack+0x1c/0x5c [ 195.680452][ T6483] sysfs_create_dir_ns+0x244/0x264 [ 195.681483][ T6483] kobject_add_internal+0x594/0xc2c [ 195.682610][ T6483] kobject_init_and_add+0x128/0x194 [ 195.683741][ T6483] gfs2_sys_fs_add+0x208/0x428 [ 195.684738][ T6483] gfs2_fill_super+0xe20/0x1a9c [ 195.685833][ T6483] get_tree_bdev+0x35c/0x54c [ 195.686858][ T6483] gfs2_get_tree+0x58/0x1b8 [ 195.687831][ T6483] vfs_get_tree+0x90/0x278 [ 195.688842][ T6483] do_new_mount+0x228/0x818 [ 195.689723][ T6483] path_mount+0x57c/0xfe8 [ 195.690615][ T6483] __arm64_sys_mount+0x488/0x5f8 [ 195.691596][ T6483] invoke_syscall+0x98/0x28c [ 195.692567][ T6483] el0_svc_common+0x13c/0x258 [ 195.693521][ T6483] do_el0_svc+0x5c/0x140 [ 195.694299][ T6483] el0_svc+0x78/0x1d4 [ 195.695030][ T6483] el0t_64_sync_handler+0xcc/0xe4 [ 195.695947][ T6483] el0t_64_sync+0x1a0/0x1a4 [ 195.698105][ T6483] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 195.700291][ T6483] gfs2: fsid=}: error -17 adding sysfs files [ 195.842217][ T6486] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 195.843514][ T6486] CPU: 1 PID: 6486 Comm: syz.1.502 Not tainted syzkaller #0 [ 195.844829][ T6486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 195.846626][ T6486] Call trace: [ 195.847375][ T6486] dump_backtrace+0x0/0x458 [ 195.848422][ T6486] show_stack+0x2c/0x3c [ 195.849310][ T6486] __dump_stack+0x30/0x40 [ 195.850168][ T6486] dump_stack_lvl+0xf4/0x15c [ 195.851048][ T6486] dump_stack+0x1c/0x5c [ 195.851881][ T6486] sysfs_create_dir_ns+0x244/0x264 [ 195.852865][ T6486] kobject_add_internal+0x594/0xc2c [ 195.853934][ T6486] kobject_init_and_add+0x128/0x194 [ 195.854925][ T6486] gfs2_sys_fs_add+0x208/0x428 [ 195.855832][ T6486] gfs2_fill_super+0xe20/0x1a9c [ 195.856759][ T6486] get_tree_bdev+0x35c/0x54c [ 195.857642][ T6486] gfs2_get_tree+0x58/0x1b8 [ 195.858610][ T6486] vfs_get_tree+0x90/0x278 [ 195.859474][ T6486] do_new_mount+0x228/0x818 [ 195.860364][ T6486] path_mount+0x57c/0xfe8 [ 195.861221][ T6486] __arm64_sys_mount+0x488/0x5f8 [ 195.862123][ T6486] invoke_syscall+0x98/0x28c [ 195.862979][ T6486] el0_svc_common+0x13c/0x258 [ 195.863942][ T6486] do_el0_svc+0x5c/0x140 [ 195.864828][ T6486] el0_svc+0x78/0x1d4 [ 195.865646][ T6486] el0t_64_sync_handler+0xcc/0xe4 [ 195.866618][ T6486] el0t_64_sync+0x1a0/0x1a4 [ 195.868858][ T6486] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 195.871213][ T6486] gfs2: fsid=}: error -17 adding sysfs files [ 196.038340][ T6489] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 196.039787][ T6489] CPU: 1 PID: 6489 Comm: syz.1.503 Not tainted syzkaller #0 [ 196.041012][ T6489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 196.043081][ T6489] Call trace: [ 196.043707][ T6489] dump_backtrace+0x0/0x458 [ 196.044635][ T6489] show_stack+0x2c/0x3c [ 196.045424][ T6489] __dump_stack+0x30/0x40 [ 196.046287][ T6489] dump_stack_lvl+0xf4/0x15c [ 196.047154][ T6489] dump_stack+0x1c/0x5c [ 196.047934][ T6489] sysfs_create_dir_ns+0x244/0x264 [ 196.048893][ T6489] kobject_add_internal+0x594/0xc2c [ 196.049895][ T6489] kobject_init_and_add+0x128/0x194 [ 196.050987][ T6489] gfs2_sys_fs_add+0x208/0x428 [ 196.051926][ T6489] gfs2_fill_super+0xe20/0x1a9c [ 196.052888][ T6489] get_tree_bdev+0x35c/0x54c [ 196.053874][ T6489] gfs2_get_tree+0x58/0x1b8 [ 196.054807][ T6489] vfs_get_tree+0x90/0x278 [ 196.055740][ T6489] do_new_mount+0x228/0x818 [ 196.056694][ T6489] path_mount+0x57c/0xfe8 [ 196.057593][ T6489] __arm64_sys_mount+0x488/0x5f8 [ 196.058625][ T6489] invoke_syscall+0x98/0x28c [ 196.059563][ T6489] el0_svc_common+0x13c/0x258 [ 196.060582][ T6489] do_el0_svc+0x5c/0x140 [ 196.061471][ T6489] el0_svc+0x78/0x1d4 [ 196.062352][ T6489] el0t_64_sync_handler+0xcc/0xe4 [ 196.063367][ T6489] el0t_64_sync+0x1a0/0x1a4 [ 196.065762][ T6489] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 196.068353][ T6489] gfs2: fsid=}: error -17 adding sysfs files [ 196.197880][ T6492] set_capacity_and_notify: 12 callbacks suppressed [ 196.197890][ T6492] loop1: detected capacity change from 0 to 32768 [ 196.237138][ T6492] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 196.238506][ T6492] CPU: 1 PID: 6492 Comm: syz.1.504 Not tainted syzkaller #0 [ 196.239885][ T6492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 196.241844][ T6492] Call trace: [ 196.242496][ T6492] dump_backtrace+0x0/0x458 [ 196.243312][ T6492] show_stack+0x2c/0x3c [ 196.244125][ T6492] __dump_stack+0x30/0x40 [ 196.244857][ T6492] dump_stack_lvl+0xf4/0x15c [ 196.245603][ T6492] dump_stack+0x1c/0x5c [ 196.246444][ T6492] sysfs_create_dir_ns+0x244/0x264 [ 196.247486][ T6492] kobject_add_internal+0x594/0xc2c [ 196.248488][ T6492] kobject_init_and_add+0x128/0x194 [ 196.249596][ T6492] gfs2_sys_fs_add+0x208/0x428 [ 196.250558][ T6492] gfs2_fill_super+0xe20/0x1a9c [ 196.251577][ T6492] get_tree_bdev+0x35c/0x54c [ 196.252499][ T6492] gfs2_get_tree+0x58/0x1b8 [ 196.253391][ T6492] vfs_get_tree+0x90/0x278 [ 196.254231][ T6492] do_new_mount+0x228/0x818 [ 196.255187][ T6492] path_mount+0x57c/0xfe8 [ 196.256096][ T6492] __arm64_sys_mount+0x488/0x5f8 [ 196.257105][ T6492] invoke_syscall+0x98/0x28c [ 196.258045][ T6492] el0_svc_common+0x13c/0x258 [ 196.259017][ T6492] do_el0_svc+0x5c/0x140 [ 196.259928][ T6492] el0_svc+0x78/0x1d4 [ 196.260745][ T6492] el0t_64_sync_handler+0xcc/0xe4 [ 196.261742][ T6492] el0t_64_sync+0x1a0/0x1a4 [ 196.263396][ T6492] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 196.265784][ T6492] gfs2: fsid=}: error -17 adding sysfs files [ 196.397584][ T6495] loop1: detected capacity change from 0 to 32768 [ 196.405459][ T6495] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 196.407507][ T6495] CPU: 0 PID: 6495 Comm: syz.1.505 Not tainted syzkaller #0 [ 196.408936][ T6495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 196.410971][ T6495] Call trace: [ 196.411578][ T6495] dump_backtrace+0x0/0x458 [ 196.412402][ T6495] show_stack+0x2c/0x3c [ 196.413188][ T6495] __dump_stack+0x30/0x40 [ 196.414018][ T6495] dump_stack_lvl+0xf4/0x15c [ 196.414941][ T6495] dump_stack+0x1c/0x5c [ 196.415703][ T6495] sysfs_create_dir_ns+0x244/0x264 [ 196.416686][ T6495] kobject_add_internal+0x594/0xc2c [ 196.417781][ T6495] kobject_init_and_add+0x128/0x194 [ 196.418854][ T6495] gfs2_sys_fs_add+0x208/0x428 [ 196.419885][ T6495] gfs2_fill_super+0xe20/0x1a9c [ 196.420909][ T6495] get_tree_bdev+0x35c/0x54c [ 196.421917][ T6495] gfs2_get_tree+0x58/0x1b8 [ 196.422888][ T6495] vfs_get_tree+0x90/0x278 [ 196.423857][ T6495] do_new_mount+0x228/0x818 [ 196.424897][ T6495] path_mount+0x57c/0xfe8 [ 196.425841][ T6495] __arm64_sys_mount+0x488/0x5f8 [ 196.426967][ T6495] invoke_syscall+0x98/0x28c [ 196.427952][ T6495] el0_svc_common+0x13c/0x258 [ 196.428893][ T6495] do_el0_svc+0x5c/0x140 [ 196.429755][ T6495] el0_svc+0x78/0x1d4 [ 196.430617][ T6495] el0t_64_sync_handler+0xcc/0xe4 [ 196.431692][ T6495] el0t_64_sync+0x1a0/0x1a4 [ 196.434007][ T6495] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 196.436773][ T6495] gfs2: fsid=}: error -17 adding sysfs files [ 196.616263][ T6498] loop1: detected capacity change from 0 to 32768 [ 196.661828][ T6498] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 196.663147][ T6498] CPU: 1 PID: 6498 Comm: syz.1.506 Not tainted syzkaller #0 [ 196.664490][ T6498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 196.666601][ T6498] Call trace: [ 196.667342][ T6498] dump_backtrace+0x0/0x458 [ 196.668369][ T6498] show_stack+0x2c/0x3c [ 196.669286][ T6498] __dump_stack+0x30/0x40 [ 196.670266][ T6498] dump_stack_lvl+0xf4/0x15c [ 196.671267][ T6498] dump_stack+0x1c/0x5c [ 196.672205][ T6498] sysfs_create_dir_ns+0x244/0x264 [ 196.673324][ T6498] kobject_add_internal+0x594/0xc2c [ 196.674470][ T6498] kobject_init_and_add+0x128/0x194 [ 196.675532][ T6498] gfs2_sys_fs_add+0x208/0x428 [ 196.676489][ T6498] gfs2_fill_super+0xe20/0x1a9c [ 196.677458][ T6498] get_tree_bdev+0x35c/0x54c [ 196.678360][ T6498] gfs2_get_tree+0x58/0x1b8 [ 196.679291][ T6498] vfs_get_tree+0x90/0x278 [ 196.680143][ T6498] do_new_mount+0x228/0x818 [ 196.681056][ T6498] path_mount+0x57c/0xfe8 [ 196.681869][ T6498] __arm64_sys_mount+0x488/0x5f8 [ 196.682844][ T6498] invoke_syscall+0x98/0x28c [ 196.683706][ T6498] el0_svc_common+0x13c/0x258 [ 196.684688][ T6498] do_el0_svc+0x5c/0x140 [ 196.685596][ T6498] el0_svc+0x78/0x1d4 [ 196.686341][ T6498] el0t_64_sync_handler+0xcc/0xe4 [ 196.687413][ T6498] el0t_64_sync+0x1a0/0x1a4 [ 196.690547][ T6498] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 196.693140][ T6498] gfs2: fsid=}: error -17 adding sysfs files [ 196.913151][ T6501] loop1: detected capacity change from 0 to 32768 [ 196.951258][ T6501] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 196.952769][ T6501] CPU: 1 PID: 6501 Comm: syz.1.507 Not tainted syzkaller #0 [ 196.954167][ T6501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 196.956014][ T6501] Call trace: [ 196.956678][ T6501] dump_backtrace+0x0/0x458 [ 196.957632][ T6501] show_stack+0x2c/0x3c [ 196.958451][ T6501] __dump_stack+0x30/0x40 [ 196.959288][ T6501] dump_stack_lvl+0xf4/0x15c [ 196.960144][ T6501] dump_stack+0x1c/0x5c [ 196.960934][ T6501] sysfs_create_dir_ns+0x244/0x264 [ 196.961929][ T6501] kobject_add_internal+0x594/0xc2c [ 196.962938][ T6501] kobject_init_and_add+0x128/0x194 [ 196.964033][ T6501] gfs2_sys_fs_add+0x208/0x428 [ 196.965018][ T6501] gfs2_fill_super+0xe20/0x1a9c [ 196.965986][ T6501] get_tree_bdev+0x35c/0x54c [ 196.966902][ T6501] gfs2_get_tree+0x58/0x1b8 [ 196.967793][ T6501] vfs_get_tree+0x90/0x278 [ 196.968606][ T6501] do_new_mount+0x228/0x818 [ 196.969495][ T6501] path_mount+0x57c/0xfe8 [ 196.970426][ T6501] __arm64_sys_mount+0x488/0x5f8 [ 196.971556][ T6501] invoke_syscall+0x98/0x28c [ 196.972548][ T6501] el0_svc_common+0x13c/0x258 [ 196.973548][ T6501] do_el0_svc+0x5c/0x140 [ 196.974377][ T6501] el0_svc+0x78/0x1d4 [ 196.975152][ T6501] el0t_64_sync_handler+0xcc/0xe4 [ 196.976213][ T6501] el0t_64_sync+0x1a0/0x1a4 [ 196.978523][ T6501] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 196.980921][ T6501] gfs2: fsid=}: error -17 adding sysfs files [ 197.119125][ T6504] loop1: detected capacity change from 0 to 32768 [ 197.125616][ T6504] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 197.127004][ T6504] CPU: 0 PID: 6504 Comm: syz.1.508 Not tainted syzkaller #0 [ 197.128323][ T6504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 197.130146][ T6504] Call trace: [ 197.130744][ T6504] dump_backtrace+0x0/0x458 [ 197.131603][ T6504] show_stack+0x2c/0x3c [ 197.132304][ T6504] __dump_stack+0x30/0x40 [ 197.133052][ T6504] dump_stack_lvl+0xf4/0x15c [ 197.133827][ T6504] dump_stack+0x1c/0x5c [ 197.134563][ T6504] sysfs_create_dir_ns+0x244/0x264 [ 197.135522][ T6504] kobject_add_internal+0x594/0xc2c [ 197.136519][ T6504] kobject_init_and_add+0x128/0x194 [ 197.137565][ T6504] gfs2_sys_fs_add+0x208/0x428 [ 197.138420][ T6504] gfs2_fill_super+0xe20/0x1a9c [ 197.139378][ T6504] get_tree_bdev+0x35c/0x54c [ 197.140307][ T6504] gfs2_get_tree+0x58/0x1b8 [ 197.141218][ T6504] vfs_get_tree+0x90/0x278 [ 197.142180][ T6504] do_new_mount+0x228/0x818 [ 197.143179][ T6504] path_mount+0x57c/0xfe8 [ 197.144081][ T6504] __arm64_sys_mount+0x488/0x5f8 [ 197.145126][ T6504] invoke_syscall+0x98/0x28c [ 197.146063][ T6504] el0_svc_common+0x13c/0x258 [ 197.146938][ T6504] do_el0_svc+0x5c/0x140 [ 197.147759][ T6504] el0_svc+0x78/0x1d4 [ 197.148577][ T6504] el0t_64_sync_handler+0xcc/0xe4 [ 197.149678][ T6504] el0t_64_sync+0x1a0/0x1a4 [ 197.151556][ T6504] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 197.153659][ T6504] gfs2: fsid=}: error -17 adding sysfs files [ 197.284492][ T6507] loop1: detected capacity change from 0 to 32768 [ 197.291270][ T6507] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 197.292511][ T6507] CPU: 1 PID: 6507 Comm: syz.1.509 Not tainted syzkaller #0 [ 197.293752][ T6507] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 197.295601][ T6507] Call trace: [ 197.296203][ T6507] dump_backtrace+0x0/0x458 [ 197.297057][ T6507] show_stack+0x2c/0x3c [ 197.297859][ T6507] __dump_stack+0x30/0x40 [ 197.298649][ T6507] dump_stack_lvl+0xf4/0x15c [ 197.299505][ T6507] dump_stack+0x1c/0x5c [ 197.300276][ T6507] sysfs_create_dir_ns+0x244/0x264 [ 197.301340][ T6507] kobject_add_internal+0x594/0xc2c [ 197.302384][ T6507] kobject_init_and_add+0x128/0x194 [ 197.303382][ T6507] gfs2_sys_fs_add+0x208/0x428 [ 197.304294][ T6507] gfs2_fill_super+0xe20/0x1a9c [ 197.305250][ T6507] get_tree_bdev+0x35c/0x54c [ 197.306199][ T6507] gfs2_get_tree+0x58/0x1b8 [ 197.307130][ T6507] vfs_get_tree+0x90/0x278 [ 197.307994][ T6507] do_new_mount+0x228/0x818 [ 197.308861][ T6507] path_mount+0x57c/0xfe8 [ 197.309690][ T6507] __arm64_sys_mount+0x488/0x5f8 [ 197.310695][ T6507] invoke_syscall+0x98/0x28c [ 197.311572][ T6507] el0_svc_common+0x13c/0x258 [ 197.312560][ T6507] do_el0_svc+0x5c/0x140 [ 197.313418][ T6507] el0_svc+0x78/0x1d4 [ 197.314272][ T6507] el0t_64_sync_handler+0xcc/0xe4 [ 197.315315][ T6507] el0t_64_sync+0x1a0/0x1a4 [ 197.318010][ T6507] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 197.320469][ T6507] gfs2: fsid=}: error -17 adding sysfs files [ 197.450235][ T6510] loop1: detected capacity change from 0 to 32768 [ 197.458331][ T6510] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 197.459552][ T6510] CPU: 0 PID: 6510 Comm: syz.1.510 Not tainted syzkaller #0 [ 197.460812][ T6510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 197.462526][ T6510] Call trace: [ 197.463087][ T6510] dump_backtrace+0x0/0x458 [ 197.463840][ T6510] show_stack+0x2c/0x3c [ 197.464539][ T6510] __dump_stack+0x30/0x40 [ 197.465290][ T6510] dump_stack_lvl+0xf4/0x15c [ 197.466198][ T6510] dump_stack+0x1c/0x5c [ 197.467115][ T6510] sysfs_create_dir_ns+0x244/0x264 [ 197.468118][ T6510] kobject_add_internal+0x594/0xc2c [ 197.469204][ T6510] kobject_init_and_add+0x128/0x194 [ 197.470296][ T6510] gfs2_sys_fs_add+0x208/0x428 [ 197.471349][ T6510] gfs2_fill_super+0xe20/0x1a9c [ 197.472426][ T6510] get_tree_bdev+0x35c/0x54c [ 197.473470][ T6510] gfs2_get_tree+0x58/0x1b8 [ 197.474448][ T6510] vfs_get_tree+0x90/0x278 [ 197.475417][ T6510] do_new_mount+0x228/0x818 [ 197.476389][ T6510] path_mount+0x57c/0xfe8 [ 197.477275][ T6510] __arm64_sys_mount+0x488/0x5f8 [ 197.478168][ T6510] invoke_syscall+0x98/0x28c [ 197.479126][ T6510] el0_svc_common+0x13c/0x258 [ 197.480145][ T6510] do_el0_svc+0x5c/0x140 [ 197.481080][ T6510] el0_svc+0x78/0x1d4 [ 197.481989][ T6510] el0t_64_sync_handler+0xcc/0xe4 [ 197.483044][ T6510] el0t_64_sync+0x1a0/0x1a4 [ 197.486503][ T6510] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 197.489125][ T6510] gfs2: fsid=}: error -17 adding sysfs files [ 197.647051][ T6513] loop1: detected capacity change from 0 to 32768 [ 197.694165][ T6513] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 197.695391][ T6513] CPU: 1 PID: 6513 Comm: syz.1.511 Not tainted syzkaller #0 [ 197.696802][ T6513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 197.698700][ T6513] Call trace: [ 197.699287][ T6513] dump_backtrace+0x0/0x458 [ 197.700164][ T6513] show_stack+0x2c/0x3c [ 197.700970][ T6513] __dump_stack+0x30/0x40 [ 197.701840][ T6513] dump_stack_lvl+0xf4/0x15c [ 197.702715][ T6513] dump_stack+0x1c/0x5c [ 197.703485][ T6513] sysfs_create_dir_ns+0x244/0x264 [ 197.704545][ T6513] kobject_add_internal+0x594/0xc2c [ 197.705565][ T6513] kobject_init_and_add+0x128/0x194 [ 197.706606][ T6513] gfs2_sys_fs_add+0x208/0x428 [ 197.707505][ T6513] gfs2_fill_super+0xe20/0x1a9c [ 197.708393][ T6513] get_tree_bdev+0x35c/0x54c [ 197.709331][ T6513] gfs2_get_tree+0x58/0x1b8 [ 197.710203][ T6513] vfs_get_tree+0x90/0x278 [ 197.711088][ T6513] do_new_mount+0x228/0x818 [ 197.711861][ T6513] path_mount+0x57c/0xfe8 [ 197.712768][ T6513] __arm64_sys_mount+0x488/0x5f8 [ 197.713744][ T6513] invoke_syscall+0x98/0x28c [ 197.714672][ T6513] el0_svc_common+0x13c/0x258 [ 197.715682][ T6513] do_el0_svc+0x5c/0x140 [ 197.716525][ T6513] el0_svc+0x78/0x1d4 [ 197.717302][ T6513] el0t_64_sync_handler+0xcc/0xe4 [ 197.718259][ T6513] el0t_64_sync+0x1a0/0x1a4 [ 197.720977][ T6513] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 197.723262][ T6513] gfs2: fsid=}: error -17 adding sysfs files [ 197.852365][ T6516] loop1: detected capacity change from 0 to 32768 [ 197.938859][ T6516] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 197.940346][ T6516] CPU: 0 PID: 6516 Comm: syz.1.512 Not tainted syzkaller #0 [ 197.941871][ T6516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 197.943705][ T6516] Call trace: [ 197.944376][ T6516] dump_backtrace+0x0/0x458 [ 197.945260][ T6516] show_stack+0x2c/0x3c [ 197.946045][ T6516] __dump_stack+0x30/0x40 [ 197.946923][ T6516] dump_stack_lvl+0xf4/0x15c [ 197.947905][ T6516] dump_stack+0x1c/0x5c [ 197.948738][ T6516] sysfs_create_dir_ns+0x244/0x264 [ 197.949841][ T6516] kobject_add_internal+0x594/0xc2c [ 197.950945][ T6516] kobject_init_and_add+0x128/0x194 [ 197.952013][ T6516] gfs2_sys_fs_add+0x208/0x428 [ 197.952950][ T6516] gfs2_fill_super+0xe20/0x1a9c [ 197.953883][ T6516] get_tree_bdev+0x35c/0x54c [ 197.954789][ T6516] gfs2_get_tree+0x58/0x1b8 [ 197.955694][ T6516] vfs_get_tree+0x90/0x278 [ 197.956540][ T6516] do_new_mount+0x228/0x818 [ 197.957480][ T6516] path_mount+0x57c/0xfe8 [ 197.958382][ T6516] __arm64_sys_mount+0x488/0x5f8 [ 197.959413][ T6516] invoke_syscall+0x98/0x28c [ 197.960382][ T6516] el0_svc_common+0x13c/0x258 [ 197.961393][ T6516] do_el0_svc+0x5c/0x140 [ 197.962361][ T6516] el0_svc+0x78/0x1d4 [ 197.963180][ T6516] el0t_64_sync_handler+0xcc/0xe4 [ 197.964246][ T6516] el0t_64_sync+0x1a0/0x1a4 [ 197.967792][ T6516] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 197.970194][ T6516] gfs2: fsid=}: error -17 adding sysfs files [ 198.135414][ T6519] loop1: detected capacity change from 0 to 32768 [ 198.191761][ T6519] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 198.193115][ T6519] CPU: 0 PID: 6519 Comm: syz.1.513 Not tainted syzkaller #0 [ 198.194442][ T6519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 198.196447][ T6519] Call trace: [ 198.197088][ T6519] dump_backtrace+0x0/0x458 [ 198.197988][ T6519] show_stack+0x2c/0x3c [ 198.198894][ T6519] __dump_stack+0x30/0x40 [ 198.199783][ T6519] dump_stack_lvl+0xf4/0x15c [ 198.200745][ T6519] dump_stack+0x1c/0x5c [ 198.201584][ T6519] sysfs_create_dir_ns+0x244/0x264 [ 198.202624][ T6519] kobject_add_internal+0x594/0xc2c [ 198.203642][ T6519] kobject_init_and_add+0x128/0x194 [ 198.204601][ T6519] gfs2_sys_fs_add+0x208/0x428 [ 198.205499][ T6519] gfs2_fill_super+0xe20/0x1a9c [ 198.206435][ T6519] get_tree_bdev+0x35c/0x54c [ 198.207279][ T6519] gfs2_get_tree+0x58/0x1b8 [ 198.208076][ T6519] vfs_get_tree+0x90/0x278 [ 198.208916][ T6519] do_new_mount+0x228/0x818 [ 198.209905][ T6519] path_mount+0x57c/0xfe8 [ 198.210777][ T6519] __arm64_sys_mount+0x488/0x5f8 [ 198.211800][ T6519] invoke_syscall+0x98/0x28c [ 198.212695][ T6519] el0_svc_common+0x13c/0x258 [ 198.213624][ T6519] do_el0_svc+0x5c/0x140 [ 198.214438][ T6519] el0_svc+0x78/0x1d4 [ 198.215176][ T6519] el0t_64_sync_handler+0xcc/0xe4 [ 198.216176][ T6519] el0t_64_sync+0x1a0/0x1a4 [ 198.217457][ T6519] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 198.219780][ T6519] gfs2: fsid=}: error -17 adding sysfs files [ 198.469921][ T6522] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 198.471306][ T6522] CPU: 1 PID: 6522 Comm: syz.1.514 Not tainted syzkaller #0 [ 198.472687][ T6522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 198.474738][ T6522] Call trace: [ 198.475395][ T6522] dump_backtrace+0x0/0x458 [ 198.476324][ T6522] show_stack+0x2c/0x3c [ 198.477156][ T6522] __dump_stack+0x30/0x40 [ 198.477934][ T6522] dump_stack_lvl+0xf4/0x15c [ 198.478877][ T6522] dump_stack+0x1c/0x5c [ 198.479791][ T6522] sysfs_create_dir_ns+0x244/0x264 [ 198.480949][ T6522] kobject_add_internal+0x594/0xc2c [ 198.482070][ T6522] kobject_init_and_add+0x128/0x194 [ 198.483223][ T6522] gfs2_sys_fs_add+0x208/0x428 [ 198.484197][ T6522] gfs2_fill_super+0xe20/0x1a9c [ 198.485298][ T6522] get_tree_bdev+0x35c/0x54c [ 198.486295][ T6522] gfs2_get_tree+0x58/0x1b8 [ 198.487280][ T6522] vfs_get_tree+0x90/0x278 [ 198.488249][ T6522] do_new_mount+0x228/0x818 [ 198.489302][ T6522] path_mount+0x57c/0xfe8 [ 198.490331][ T6522] __arm64_sys_mount+0x488/0x5f8 [ 198.491503][ T6522] invoke_syscall+0x98/0x28c [ 198.492480][ T6522] el0_svc_common+0x13c/0x258 [ 198.493493][ T6522] do_el0_svc+0x5c/0x140 [ 198.494418][ T6522] el0_svc+0x78/0x1d4 [ 198.495278][ T6522] el0t_64_sync_handler+0xcc/0xe4 [ 198.496357][ T6522] el0t_64_sync+0x1a0/0x1a4 [ 198.498812][ T6522] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 198.501036][ T6522] gfs2: fsid=}: error -17 adding sysfs files [ 198.641601][ T6525] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 198.643033][ T6525] CPU: 0 PID: 6525 Comm: syz.1.515 Not tainted syzkaller #0 [ 198.644347][ T6525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 198.646084][ T6525] Call trace: [ 198.646684][ T6525] dump_backtrace+0x0/0x458 [ 198.647556][ T6525] show_stack+0x2c/0x3c [ 198.648352][ T6525] __dump_stack+0x30/0x40 [ 198.649167][ T6525] dump_stack_lvl+0xf4/0x15c [ 198.650065][ T6525] dump_stack+0x1c/0x5c [ 198.650825][ T6525] sysfs_create_dir_ns+0x244/0x264 [ 198.651691][ T6525] kobject_add_internal+0x594/0xc2c [ 198.652661][ T6525] kobject_init_and_add+0x128/0x194 [ 198.653637][ T6525] gfs2_sys_fs_add+0x208/0x428 [ 198.654601][ T6525] gfs2_fill_super+0xe20/0x1a9c [ 198.655463][ T6525] get_tree_bdev+0x35c/0x54c [ 198.656330][ T6525] gfs2_get_tree+0x58/0x1b8 [ 198.657199][ T6525] vfs_get_tree+0x90/0x278 [ 198.658035][ T6525] do_new_mount+0x228/0x818 [ 198.658906][ T6525] path_mount+0x57c/0xfe8 [ 198.659697][ T6525] __arm64_sys_mount+0x488/0x5f8 [ 198.660743][ T6525] invoke_syscall+0x98/0x28c [ 198.661728][ T6525] el0_svc_common+0x13c/0x258 [ 198.662644][ T6525] do_el0_svc+0x5c/0x140 [ 198.663580][ T6525] el0_svc+0x78/0x1d4 [ 198.664398][ T6525] el0t_64_sync_handler+0xcc/0xe4 [ 198.665422][ T6525] el0t_64_sync+0x1a0/0x1a4 [ 198.666525][ T6525] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 198.669256][ T6525] gfs2: fsid=}: error -17 adding sysfs files [ 198.805875][ T6529] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 198.807253][ T6529] CPU: 1 PID: 6529 Comm: syz.1.516 Not tainted syzkaller #0 [ 198.808783][ T6529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 198.810928][ T6529] Call trace: [ 198.811615][ T6529] dump_backtrace+0x0/0x458 [ 198.812676][ T6529] show_stack+0x2c/0x3c [ 198.813610][ T6529] __dump_stack+0x30/0x40 [ 198.814507][ T6529] dump_stack_lvl+0xf4/0x15c [ 198.815463][ T6529] dump_stack+0x1c/0x5c [ 198.816289][ T6529] sysfs_create_dir_ns+0x244/0x264 [ 198.817342][ T6529] kobject_add_internal+0x594/0xc2c [ 198.818478][ T6529] kobject_init_and_add+0x128/0x194 [ 198.819609][ T6529] gfs2_sys_fs_add+0x208/0x428 [ 198.820632][ T6529] gfs2_fill_super+0xe20/0x1a9c [ 198.821687][ T6529] get_tree_bdev+0x35c/0x54c [ 198.822672][ T6529] gfs2_get_tree+0x58/0x1b8 [ 198.823631][ T6529] vfs_get_tree+0x90/0x278 [ 198.824547][ T6529] do_new_mount+0x228/0x818 [ 198.825475][ T6529] path_mount+0x57c/0xfe8 [ 198.826390][ T6529] __arm64_sys_mount+0x488/0x5f8 [ 198.827460][ T6529] invoke_syscall+0x98/0x28c [ 198.828461][ T6529] el0_svc_common+0x13c/0x258 [ 198.829451][ T6529] do_el0_svc+0x5c/0x140 [ 198.830290][ T6529] el0_svc+0x78/0x1d4 [ 198.831103][ T6529] el0t_64_sync_handler+0xcc/0xe4 [ 198.832099][ T6529] el0t_64_sync+0x1a0/0x1a4 [ 198.835160][ T6529] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 198.837697][ T6529] gfs2: fsid=}: error -17 adding sysfs files [ 199.026853][ T6532] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 199.028203][ T6532] CPU: 1 PID: 6532 Comm: syz.1.517 Not tainted syzkaller #0 [ 199.029614][ T6532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 199.031513][ T6532] Call trace: [ 199.032150][ T6532] dump_backtrace+0x0/0x458 [ 199.033001][ T6532] show_stack+0x2c/0x3c [ 199.033834][ T6532] __dump_stack+0x30/0x40 [ 199.034740][ T6532] dump_stack_lvl+0xf4/0x15c [ 199.035727][ T6532] dump_stack+0x1c/0x5c [ 199.036540][ T6532] sysfs_create_dir_ns+0x244/0x264 [ 199.037549][ T6532] kobject_add_internal+0x594/0xc2c [ 199.038565][ T6532] kobject_init_and_add+0x128/0x194 [ 199.039588][ T6532] gfs2_sys_fs_add+0x208/0x428 [ 199.040604][ T6532] gfs2_fill_super+0xe20/0x1a9c [ 199.041512][ T6532] get_tree_bdev+0x35c/0x54c [ 199.042447][ T6532] gfs2_get_tree+0x58/0x1b8 [ 199.043323][ T6532] vfs_get_tree+0x90/0x278 [ 199.044144][ T6532] do_new_mount+0x228/0x818 [ 199.044991][ T6532] path_mount+0x57c/0xfe8 [ 199.045892][ T6532] __arm64_sys_mount+0x488/0x5f8 [ 199.046858][ T6532] invoke_syscall+0x98/0x28c [ 199.047856][ T6532] el0_svc_common+0x13c/0x258 [ 199.048823][ T6532] do_el0_svc+0x5c/0x140 [ 199.049710][ T6532] el0_svc+0x78/0x1d4 [ 199.050576][ T6532] el0t_64_sync_handler+0xcc/0xe4 [ 199.051568][ T6532] el0t_64_sync+0x1a0/0x1a4 [ 199.054057][ T6532] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 199.056459][ T6532] gfs2: fsid=}: error -17 adding sysfs files [ 199.322910][ T6535] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 199.324303][ T6535] CPU: 0 PID: 6535 Comm: syz.1.518 Not tainted syzkaller #0 [ 199.325645][ T6535] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 199.327592][ T6535] Call trace: [ 199.328202][ T6535] dump_backtrace+0x0/0x458 [ 199.329048][ T6535] show_stack+0x2c/0x3c [ 199.329888][ T6535] __dump_stack+0x30/0x40 [ 199.330717][ T6535] dump_stack_lvl+0xf4/0x15c [ 199.331575][ T6535] dump_stack+0x1c/0x5c [ 199.332363][ T6535] sysfs_create_dir_ns+0x244/0x264 [ 199.333331][ T6535] kobject_add_internal+0x594/0xc2c [ 199.334314][ T6535] kobject_init_and_add+0x128/0x194 [ 199.335389][ T6535] gfs2_sys_fs_add+0x208/0x428 [ 199.336296][ T6535] gfs2_fill_super+0xe20/0x1a9c [ 199.337304][ T6535] get_tree_bdev+0x35c/0x54c [ 199.338170][ T6535] gfs2_get_tree+0x58/0x1b8 [ 199.339061][ T6535] vfs_get_tree+0x90/0x278 [ 199.339917][ T6535] do_new_mount+0x228/0x818 [ 199.340815][ T6535] path_mount+0x57c/0xfe8 [ 199.341684][ T6535] __arm64_sys_mount+0x488/0x5f8 [ 199.342704][ T6535] invoke_syscall+0x98/0x28c [ 199.343615][ T6535] el0_svc_common+0x13c/0x258 [ 199.344617][ T6535] do_el0_svc+0x5c/0x140 [ 199.345552][ T6535] el0_svc+0x78/0x1d4 [ 199.346367][ T6535] el0t_64_sync_handler+0xcc/0xe4 [ 199.347410][ T6535] el0t_64_sync+0x1a0/0x1a4 [ 199.349507][ T6535] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 199.351768][ T6535] gfs2: fsid=}: error -17 adding sysfs files [ 199.576886][ T6538] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 199.578095][ T6538] CPU: 1 PID: 6538 Comm: syz.1.519 Not tainted syzkaller #0 [ 199.579393][ T6538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 199.581253][ T6538] Call trace: [ 199.581894][ T6538] dump_backtrace+0x0/0x458 [ 199.582790][ T6538] show_stack+0x2c/0x3c [ 199.583617][ T6538] __dump_stack+0x30/0x40 [ 199.584467][ T6538] dump_stack_lvl+0xf4/0x15c [ 199.585313][ T6538] dump_stack+0x1c/0x5c [ 199.586078][ T6538] sysfs_create_dir_ns+0x244/0x264 [ 199.587262][ T6538] kobject_add_internal+0x594/0xc2c [ 199.588431][ T6538] kobject_init_and_add+0x128/0x194 [ 199.589523][ T6538] gfs2_sys_fs_add+0x208/0x428 [ 199.590566][ T6538] gfs2_fill_super+0xe20/0x1a9c [ 199.591479][ T6538] get_tree_bdev+0x35c/0x54c [ 199.592432][ T6538] gfs2_get_tree+0x58/0x1b8 [ 199.593359][ T6538] vfs_get_tree+0x90/0x278 [ 199.594178][ T6538] do_new_mount+0x228/0x818 [ 199.595027][ T6538] path_mount+0x57c/0xfe8 [ 199.595771][ T6538] __arm64_sys_mount+0x488/0x5f8 [ 199.596715][ T6538] invoke_syscall+0x98/0x28c [ 199.597592][ T6538] el0_svc_common+0x13c/0x258 [ 199.598477][ T6538] do_el0_svc+0x5c/0x140 [ 199.599279][ T6538] el0_svc+0x78/0x1d4 [ 199.600014][ T6538] el0t_64_sync_handler+0xcc/0xe4 [ 199.600954][ T6538] el0t_64_sync+0x1a0/0x1a4 [ 199.601916][ T6538] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 199.604423][ T6538] gfs2: fsid=}: error -17 adding sysfs files [ 199.860859][ T6541] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 199.862255][ T6541] CPU: 1 PID: 6541 Comm: syz.1.520 Not tainted syzkaller #0 [ 199.863650][ T6541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 199.865530][ T6541] Call trace: [ 199.866181][ T6541] dump_backtrace+0x0/0x458 [ 199.867091][ T6541] show_stack+0x2c/0x3c [ 199.867823][ T6541] __dump_stack+0x30/0x40 [ 199.868636][ T6541] dump_stack_lvl+0xf4/0x15c [ 199.869508][ T6541] dump_stack+0x1c/0x5c [ 199.870310][ T6541] sysfs_create_dir_ns+0x244/0x264 [ 199.871277][ T6541] kobject_add_internal+0x594/0xc2c [ 199.872371][ T6541] kobject_init_and_add+0x128/0x194 [ 199.873471][ T6541] gfs2_sys_fs_add+0x208/0x428 [ 199.874416][ T6541] gfs2_fill_super+0xe20/0x1a9c [ 199.875388][ T6541] get_tree_bdev+0x35c/0x54c [ 199.876282][ T6541] gfs2_get_tree+0x58/0x1b8 [ 199.877196][ T6541] vfs_get_tree+0x90/0x278 [ 199.878273][ T6541] do_new_mount+0x228/0x818 [ 199.879219][ T6541] path_mount+0x57c/0xfe8 [ 199.880185][ T6541] __arm64_sys_mount+0x488/0x5f8 [ 199.881312][ T6541] invoke_syscall+0x98/0x28c [ 199.882364][ T6541] el0_svc_common+0x13c/0x258 [ 199.883395][ T6541] do_el0_svc+0x5c/0x140 [ 199.884342][ T6541] el0_svc+0x78/0x1d4 [ 199.885109][ T6541] el0t_64_sync_handler+0xcc/0xe4 [ 199.886072][ T6541] el0t_64_sync+0x1a0/0x1a4 [ 199.887135][ T6541] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 199.889593][ T6541] gfs2: fsid=}: error -17 adding sysfs files [ 200.060725][ T6544] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 200.061974][ T6544] CPU: 1 PID: 6544 Comm: syz.1.521 Not tainted syzkaller #0 [ 200.063402][ T6544] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 200.065397][ T6544] Call trace: [ 200.065991][ T6544] dump_backtrace+0x0/0x458 [ 200.066959][ T6544] show_stack+0x2c/0x3c [ 200.067853][ T6544] __dump_stack+0x30/0x40 [ 200.068779][ T6544] dump_stack_lvl+0xf4/0x15c [ 200.069722][ T6544] dump_stack+0x1c/0x5c [ 200.070586][ T6544] sysfs_create_dir_ns+0x244/0x264 [ 200.071627][ T6544] kobject_add_internal+0x594/0xc2c [ 200.072687][ T6544] kobject_init_and_add+0x128/0x194 [ 200.073768][ T6544] gfs2_sys_fs_add+0x208/0x428 [ 200.074705][ T6544] gfs2_fill_super+0xe20/0x1a9c [ 200.075727][ T6544] get_tree_bdev+0x35c/0x54c [ 200.076704][ T6544] gfs2_get_tree+0x58/0x1b8 [ 200.077668][ T6544] vfs_get_tree+0x90/0x278 [ 200.078524][ T6544] do_new_mount+0x228/0x818 [ 200.079468][ T6544] path_mount+0x57c/0xfe8 [ 200.080386][ T6544] __arm64_sys_mount+0x488/0x5f8 [ 200.081457][ T6544] invoke_syscall+0x98/0x28c [ 200.082364][ T6544] el0_svc_common+0x13c/0x258 [ 200.083304][ T6544] do_el0_svc+0x5c/0x140 [ 200.084138][ T6544] el0_svc+0x78/0x1d4 [ 200.084942][ T6544] el0t_64_sync_handler+0xcc/0xe4 [ 200.085976][ T6544] el0t_64_sync+0x1a0/0x1a4 [ 200.087106][ T6544] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 200.089548][ T6544] gfs2: fsid=}: error -17 adding sysfs files [ 200.257166][ T6547] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 200.258503][ T6547] CPU: 1 PID: 6547 Comm: syz.1.522 Not tainted syzkaller #0 [ 200.259944][ T6547] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 200.261823][ T6547] Call trace: [ 200.262462][ T6547] dump_backtrace+0x0/0x458 [ 200.263308][ T6547] show_stack+0x2c/0x3c [ 200.264047][ T6547] __dump_stack+0x30/0x40 [ 200.264932][ T6547] dump_stack_lvl+0xf4/0x15c [ 200.265853][ T6547] dump_stack+0x1c/0x5c [ 200.266680][ T6547] sysfs_create_dir_ns+0x244/0x264 [ 200.267882][ T6547] kobject_add_internal+0x594/0xc2c [ 200.268990][ T6547] kobject_init_and_add+0x128/0x194 [ 200.270041][ T6547] gfs2_sys_fs_add+0x208/0x428 [ 200.271044][ T6547] gfs2_fill_super+0xe20/0x1a9c [ 200.272114][ T6547] get_tree_bdev+0x35c/0x54c [ 200.273100][ T6547] gfs2_get_tree+0x58/0x1b8 [ 200.274007][ T6547] vfs_get_tree+0x90/0x278 [ 200.274841][ T6547] do_new_mount+0x228/0x818 [ 200.275723][ T6547] path_mount+0x57c/0xfe8 [ 200.276551][ T6547] __arm64_sys_mount+0x488/0x5f8 [ 200.277480][ T6547] invoke_syscall+0x98/0x28c [ 200.278446][ T6547] el0_svc_common+0x13c/0x258 [ 200.279425][ T6547] do_el0_svc+0x5c/0x140 [ 200.280237][ T6547] el0_svc+0x78/0x1d4 [ 200.281030][ T6547] el0t_64_sync_handler+0xcc/0xe4 [ 200.282101][ T6547] el0t_64_sync+0x1a0/0x1a4 [ 200.284102][ T6547] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 200.286567][ T6547] gfs2: fsid=}: error -17 adding sysfs files [ 200.457135][ T6550] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 200.458563][ T6550] CPU: 1 PID: 6550 Comm: syz.1.523 Not tainted syzkaller #0 [ 200.459832][ T6550] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 200.461540][ T6550] Call trace: [ 200.462090][ T6550] dump_backtrace+0x0/0x458 [ 200.462870][ T6550] show_stack+0x2c/0x3c [ 200.463619][ T6550] __dump_stack+0x30/0x40 [ 200.464390][ T6550] dump_stack_lvl+0xf4/0x15c [ 200.465148][ T6550] dump_stack+0x1c/0x5c [ 200.465813][ T6550] sysfs_create_dir_ns+0x244/0x264 [ 200.466789][ T6550] kobject_add_internal+0x594/0xc2c [ 200.467782][ T6550] kobject_init_and_add+0x128/0x194 [ 200.468738][ T6550] gfs2_sys_fs_add+0x208/0x428 [ 200.469610][ T6550] gfs2_fill_super+0xe20/0x1a9c [ 200.470498][ T6550] get_tree_bdev+0x35c/0x54c [ 200.471339][ T6550] gfs2_get_tree+0x58/0x1b8 [ 200.472170][ T6550] vfs_get_tree+0x90/0x278 [ 200.473007][ T6550] do_new_mount+0x228/0x818 [ 200.473847][ T6550] path_mount+0x57c/0xfe8 [ 200.474669][ T6550] __arm64_sys_mount+0x488/0x5f8 [ 200.475588][ T6550] invoke_syscall+0x98/0x28c [ 200.476468][ T6550] el0_svc_common+0x13c/0x258 [ 200.477306][ T6550] do_el0_svc+0x5c/0x140 [ 200.478125][ T6550] el0_svc+0x78/0x1d4 [ 200.478880][ T6550] el0t_64_sync_handler+0xcc/0xe4 [ 200.479853][ T6550] el0t_64_sync+0x1a0/0x1a4 [ 200.484332][ T6550] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 200.487069][ T6550] gfs2: fsid=}: error -17 adding sysfs files [ 200.624994][ T6553] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 200.626606][ T6553] CPU: 0 PID: 6553 Comm: syz.1.524 Not tainted syzkaller #0 [ 200.628200][ T6553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 200.630385][ T6553] Call trace: [ 200.631092][ T6553] dump_backtrace+0x0/0x458 [ 200.632132][ T6553] show_stack+0x2c/0x3c [ 200.633031][ T6553] __dump_stack+0x30/0x40 [ 200.633941][ T6553] dump_stack_lvl+0xf4/0x15c [ 200.634946][ T6553] dump_stack+0x1c/0x5c [ 200.635884][ T6553] sysfs_create_dir_ns+0x244/0x264 [ 200.637041][ T6553] kobject_add_internal+0x594/0xc2c [ 200.638217][ T6553] kobject_init_and_add+0x128/0x194 [ 200.639386][ T6553] gfs2_sys_fs_add+0x208/0x428 [ 200.640465][ T6553] gfs2_fill_super+0xe20/0x1a9c [ 200.641523][ T6553] get_tree_bdev+0x35c/0x54c [ 200.642513][ T6553] gfs2_get_tree+0x58/0x1b8 [ 200.643498][ T6553] vfs_get_tree+0x90/0x278 [ 200.644393][ T6553] do_new_mount+0x228/0x818 [ 200.645411][ T6553] path_mount+0x57c/0xfe8 [ 200.646307][ T6553] __arm64_sys_mount+0x488/0x5f8 [ 200.647428][ T6553] invoke_syscall+0x98/0x28c [ 200.648398][ T6553] el0_svc_common+0x13c/0x258 [ 200.649410][ T6553] do_el0_svc+0x5c/0x140 [ 200.650353][ T6553] el0_svc+0x78/0x1d4 [ 200.651218][ T6553] el0t_64_sync_handler+0xcc/0xe4 [ 200.652340][ T6553] el0t_64_sync+0x1a0/0x1a4 [ 200.654918][ T6553] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 200.657439][ T6553] gfs2: fsid=}: error -17 adding sysfs files 1970/01/01 00:03:20 executed programs: 511 [ 200.892074][ T6556] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 200.893372][ T6556] CPU: 1 PID: 6556 Comm: syz.1.525 Not tainted syzkaller #0 [ 200.894792][ T6556] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 200.896712][ T6556] Call trace: [ 200.897320][ T6556] dump_backtrace+0x0/0x458 [ 200.898231][ T6556] show_stack+0x2c/0x3c [ 200.899059][ T6556] __dump_stack+0x30/0x40 [ 200.899948][ T6556] dump_stack_lvl+0xf4/0x15c [ 200.900840][ T6556] dump_stack+0x1c/0x5c [ 200.901627][ T6556] sysfs_create_dir_ns+0x244/0x264 [ 200.902606][ T6556] kobject_add_internal+0x594/0xc2c [ 200.903769][ T6556] kobject_init_and_add+0x128/0x194 [ 200.904899][ T6556] gfs2_sys_fs_add+0x208/0x428 [ 200.905879][ T6556] gfs2_fill_super+0xe20/0x1a9c [ 200.906845][ T6556] get_tree_bdev+0x35c/0x54c [ 200.907783][ T6556] gfs2_get_tree+0x58/0x1b8 [ 200.908601][ T6556] vfs_get_tree+0x90/0x278 [ 200.909492][ T6556] do_new_mount+0x228/0x818 [ 200.910399][ T6556] path_mount+0x57c/0xfe8 [ 200.911264][ T6556] __arm64_sys_mount+0x488/0x5f8 [ 200.912227][ T6556] invoke_syscall+0x98/0x28c [ 200.913183][ T6556] el0_svc_common+0x13c/0x258 [ 200.914190][ T6556] do_el0_svc+0x5c/0x140 [ 200.915065][ T6556] el0_svc+0x78/0x1d4 [ 200.915909][ T6556] el0t_64_sync_handler+0xcc/0xe4 [ 200.916982][ T6556] el0t_64_sync+0x1a0/0x1a4 [ 200.918311][ T6556] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 200.920897][ T6556] gfs2: fsid=}: error -17 adding sysfs files [ 201.060505][ T6559] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 201.062167][ T6559] CPU: 0 PID: 6559 Comm: syz.1.526 Not tainted syzkaller #0 [ 201.063606][ T6559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 201.065520][ T6559] Call trace: [ 201.066141][ T6559] dump_backtrace+0x0/0x458 [ 201.067103][ T6559] show_stack+0x2c/0x3c [ 201.068031][ T6559] __dump_stack+0x30/0x40 [ 201.069002][ T6559] dump_stack_lvl+0xf4/0x15c [ 201.069937][ T6559] dump_stack+0x1c/0x5c [ 201.070793][ T6559] sysfs_create_dir_ns+0x244/0x264 [ 201.071843][ T6559] kobject_add_internal+0x594/0xc2c [ 201.072907][ T6559] kobject_init_and_add+0x128/0x194 [ 201.074014][ T6559] gfs2_sys_fs_add+0x208/0x428 [ 201.074995][ T6559] gfs2_fill_super+0xe20/0x1a9c [ 201.075993][ T6559] get_tree_bdev+0x35c/0x54c [ 201.076925][ T6559] gfs2_get_tree+0x58/0x1b8 [ 201.077848][ T6559] vfs_get_tree+0x90/0x278 [ 201.078803][ T6559] do_new_mount+0x228/0x818 [ 201.079705][ T6559] path_mount+0x57c/0xfe8 [ 201.080489][ T6559] __arm64_sys_mount+0x488/0x5f8 [ 201.081482][ T6559] invoke_syscall+0x98/0x28c [ 201.082447][ T6559] el0_svc_common+0x13c/0x258 [ 201.083468][ T6559] do_el0_svc+0x5c/0x140 [ 201.084410][ T6559] el0_svc+0x78/0x1d4 [ 201.085291][ T6559] el0t_64_sync_handler+0xcc/0xe4 [ 201.086405][ T6559] el0t_64_sync+0x1a0/0x1a4 [ 201.088876][ T6559] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 201.091113][ T6559] gfs2: fsid=}: error -17 adding sysfs files [ 201.283489][ T6562] set_capacity_and_notify: 13 callbacks suppressed [ 201.283500][ T6562] loop1: detected capacity change from 0 to 32768 [ 201.327172][ T6562] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 201.328491][ T6562] CPU: 0 PID: 6562 Comm: syz.1.527 Not tainted syzkaller #0 [ 201.329789][ T6562] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 201.331698][ T6562] Call trace: [ 201.332336][ T6562] dump_backtrace+0x0/0x458 [ 201.333162][ T6562] show_stack+0x2c/0x3c [ 201.333909][ T6562] __dump_stack+0x30/0x40 [ 201.334671][ T6562] dump_stack_lvl+0xf4/0x15c [ 201.335476][ T6562] dump_stack+0x1c/0x5c [ 201.336257][ T6562] sysfs_create_dir_ns+0x244/0x264 [ 201.337266][ T6562] kobject_add_internal+0x594/0xc2c [ 201.338290][ T6562] kobject_init_and_add+0x128/0x194 [ 201.339361][ T6562] gfs2_sys_fs_add+0x208/0x428 [ 201.340326][ T6562] gfs2_fill_super+0xe20/0x1a9c [ 201.341270][ T6562] get_tree_bdev+0x35c/0x54c [ 201.342160][ T6562] gfs2_get_tree+0x58/0x1b8 [ 201.343080][ T6562] vfs_get_tree+0x90/0x278 [ 201.344035][ T6562] do_new_mount+0x228/0x818 [ 201.344970][ T6562] path_mount+0x57c/0xfe8 [ 201.345800][ T6562] __arm64_sys_mount+0x488/0x5f8 [ 201.346774][ T6562] invoke_syscall+0x98/0x28c [ 201.347685][ T6562] el0_svc_common+0x13c/0x258 [ 201.348567][ T6562] do_el0_svc+0x5c/0x140 [ 201.349440][ T6562] el0_svc+0x78/0x1d4 [ 201.350282][ T6562] el0t_64_sync_handler+0xcc/0xe4 [ 201.351304][ T6562] el0t_64_sync+0x1a0/0x1a4 [ 201.354021][ T6562] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 201.356651][ T6562] gfs2: fsid=}: error -17 adding sysfs files [ 201.554381][ T6565] loop1: detected capacity change from 0 to 32768 [ 201.601128][ T6565] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 201.602492][ T6565] CPU: 1 PID: 6565 Comm: syz.1.528 Not tainted syzkaller #0 [ 201.603964][ T6565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 201.605958][ T6565] Call trace: [ 201.606647][ T6565] dump_backtrace+0x0/0x458 [ 201.607597][ T6565] show_stack+0x2c/0x3c [ 201.608436][ T6565] __dump_stack+0x30/0x40 [ 201.609354][ T6565] dump_stack_lvl+0xf4/0x15c [ 201.610350][ T6565] dump_stack+0x1c/0x5c [ 201.611170][ T6565] sysfs_create_dir_ns+0x244/0x264 [ 201.612283][ T6565] kobject_add_internal+0x594/0xc2c [ 201.613206][ T6565] kobject_init_and_add+0x128/0x194 [ 201.614269][ T6565] gfs2_sys_fs_add+0x208/0x428 [ 201.615238][ T6565] gfs2_fill_super+0xe20/0x1a9c [ 201.616084][ T6565] get_tree_bdev+0x35c/0x54c [ 201.616934][ T6565] gfs2_get_tree+0x58/0x1b8 [ 201.617812][ T6565] vfs_get_tree+0x90/0x278 [ 201.618647][ T6565] do_new_mount+0x228/0x818 [ 201.619639][ T6565] path_mount+0x57c/0xfe8 [ 201.620572][ T6565] __arm64_sys_mount+0x488/0x5f8 [ 201.621565][ T6565] invoke_syscall+0x98/0x28c [ 201.622516][ T6565] el0_svc_common+0x13c/0x258 [ 201.623438][ T6565] do_el0_svc+0x5c/0x140 [ 201.624239][ T6565] el0_svc+0x78/0x1d4 [ 201.625003][ T6565] el0t_64_sync_handler+0xcc/0xe4 [ 201.626021][ T6565] el0t_64_sync+0x1a0/0x1a4 [ 201.628329][ T6565] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 201.630719][ T6565] gfs2: fsid=}: error -17 adding sysfs files [ 201.793960][ T6569] loop1: detected capacity change from 0 to 32768 [ 201.832250][ T6569] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 201.833731][ T6569] CPU: 0 PID: 6569 Comm: syz.1.529 Not tainted syzkaller #0 [ 201.835044][ T6569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 201.836939][ T6569] Call trace: [ 201.837590][ T6569] dump_backtrace+0x0/0x458 [ 201.838631][ T6569] show_stack+0x2c/0x3c [ 201.839490][ T6569] __dump_stack+0x30/0x40 [ 201.840313][ T6569] dump_stack_lvl+0xf4/0x15c [ 201.841189][ T6569] dump_stack+0x1c/0x5c [ 201.842155][ T6569] sysfs_create_dir_ns+0x244/0x264 [ 201.843323][ T6569] kobject_add_internal+0x594/0xc2c [ 201.844484][ T6569] kobject_init_and_add+0x128/0x194 [ 201.845548][ T6569] gfs2_sys_fs_add+0x208/0x428 [ 201.846585][ T6569] gfs2_fill_super+0xe20/0x1a9c [ 201.847643][ T6569] get_tree_bdev+0x35c/0x54c [ 201.848656][ T6569] gfs2_get_tree+0x58/0x1b8 [ 201.849661][ T6569] vfs_get_tree+0x90/0x278 [ 201.850604][ T6569] do_new_mount+0x228/0x818 [ 201.851647][ T6569] path_mount+0x57c/0xfe8 [ 201.852649][ T6569] __arm64_sys_mount+0x488/0x5f8 [ 201.853786][ T6569] invoke_syscall+0x98/0x28c [ 201.854748][ T6569] el0_svc_common+0x13c/0x258 [ 201.855687][ T6569] do_el0_svc+0x5c/0x140 [ 201.856516][ T6569] el0_svc+0x78/0x1d4 [ 201.857306][ T6569] el0t_64_sync_handler+0xcc/0xe4 [ 201.858346][ T6569] el0t_64_sync+0x1a0/0x1a4 [ 201.859659][ T6569] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 201.862154][ T6569] gfs2: fsid=}: error -17 adding sysfs files [ 201.989359][ T6572] loop1: detected capacity change from 0 to 32768 [ 202.032178][ T6572] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 202.033412][ T6572] CPU: 0 PID: 6572 Comm: syz.1.530 Not tainted syzkaller #0 [ 202.034914][ T6572] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 202.037002][ T6572] Call trace: [ 202.037708][ T6572] dump_backtrace+0x0/0x458 [ 202.038688][ T6572] show_stack+0x2c/0x3c [ 202.039581][ T6572] __dump_stack+0x30/0x40 [ 202.040514][ T6572] dump_stack_lvl+0xf4/0x15c [ 202.041411][ T6572] dump_stack+0x1c/0x5c [ 202.042264][ T6572] sysfs_create_dir_ns+0x244/0x264 [ 202.043358][ T6572] kobject_add_internal+0x594/0xc2c [ 202.044494][ T6572] kobject_init_and_add+0x128/0x194 [ 202.045579][ T6572] gfs2_sys_fs_add+0x208/0x428 [ 202.046651][ T6572] gfs2_fill_super+0xe20/0x1a9c [ 202.047735][ T6572] get_tree_bdev+0x35c/0x54c [ 202.048662][ T6572] gfs2_get_tree+0x58/0x1b8 [ 202.049473][ T6572] vfs_get_tree+0x90/0x278 [ 202.050297][ T6572] do_new_mount+0x228/0x818 [ 202.051150][ T6572] path_mount+0x57c/0xfe8 [ 202.051972][ T6572] __arm64_sys_mount+0x488/0x5f8 [ 202.052924][ T6572] invoke_syscall+0x98/0x28c [ 202.053756][ T6572] el0_svc_common+0x13c/0x258 [ 202.054626][ T6572] do_el0_svc+0x5c/0x140 [ 202.055429][ T6572] el0_svc+0x78/0x1d4 [ 202.056165][ T6572] el0t_64_sync_handler+0xcc/0xe4 [ 202.057116][ T6572] el0t_64_sync+0x1a0/0x1a4 [ 202.060044][ T6572] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 202.062835][ T6572] gfs2: fsid=}: error -17 adding sysfs files [ 202.306692][ T6576] loop1: detected capacity change from 0 to 32768 [ 202.383063][ T6576] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 202.384496][ T6576] CPU: 0 PID: 6576 Comm: syz.1.531 Not tainted syzkaller #0 [ 202.385758][ T6576] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 202.387711][ T6576] Call trace: [ 202.388332][ T6576] dump_backtrace+0x0/0x458 [ 202.389257][ T6576] show_stack+0x2c/0x3c [ 202.390009][ T6576] __dump_stack+0x30/0x40 [ 202.390885][ T6576] dump_stack_lvl+0xf4/0x15c [ 202.391889][ T6576] dump_stack+0x1c/0x5c [ 202.392813][ T6576] sysfs_create_dir_ns+0x244/0x264 [ 202.393934][ T6576] kobject_add_internal+0x594/0xc2c [ 202.395009][ T6576] kobject_init_and_add+0x128/0x194 [ 202.396111][ T6576] gfs2_sys_fs_add+0x208/0x428 [ 202.397116][ T6576] gfs2_fill_super+0xe20/0x1a9c [ 202.398114][ T6576] get_tree_bdev+0x35c/0x54c [ 202.399014][ T6576] gfs2_get_tree+0x58/0x1b8 [ 202.399979][ T6576] vfs_get_tree+0x90/0x278 [ 202.400903][ T6576] do_new_mount+0x228/0x818 [ 202.401785][ T6576] path_mount+0x57c/0xfe8 [ 202.402662][ T6576] __arm64_sys_mount+0x488/0x5f8 [ 202.403756][ T6576] invoke_syscall+0x98/0x28c [ 202.404711][ T6576] el0_svc_common+0x13c/0x258 [ 202.405683][ T6576] do_el0_svc+0x5c/0x140 [ 202.406655][ T6576] el0_svc+0x78/0x1d4 [ 202.407500][ T6576] el0t_64_sync_handler+0xcc/0xe4 [ 202.408496][ T6576] el0t_64_sync+0x1a0/0x1a4 [ 202.411448][ T6576] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 202.413831][ T6576] gfs2: fsid=}: error -17 adding sysfs files [ 202.588588][ T6581] loop1: detected capacity change from 0 to 32768 [ 202.637134][ T6581] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 202.638472][ T6581] CPU: 1 PID: 6581 Comm: syz.1.532 Not tainted syzkaller #0 [ 202.639809][ T6581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 202.641649][ T6581] Call trace: [ 202.642275][ T6581] dump_backtrace+0x0/0x458 [ 202.643098][ T6581] show_stack+0x2c/0x3c [ 202.643882][ T6581] __dump_stack+0x30/0x40 [ 202.644632][ T6581] dump_stack_lvl+0xf4/0x15c [ 202.645479][ T6581] dump_stack+0x1c/0x5c [ 202.646341][ T6581] sysfs_create_dir_ns+0x244/0x264 [ 202.647395][ T6581] kobject_add_internal+0x594/0xc2c [ 202.648448][ T6581] kobject_init_and_add+0x128/0x194 [ 202.649427][ T6581] gfs2_sys_fs_add+0x208/0x428 [ 202.650323][ T6581] gfs2_fill_super+0xe20/0x1a9c [ 202.651338][ T6581] get_tree_bdev+0x35c/0x54c [ 202.652208][ T6581] gfs2_get_tree+0x58/0x1b8 [ 202.653081][ T6581] vfs_get_tree+0x90/0x278 [ 202.653946][ T6581] do_new_mount+0x228/0x818 [ 202.654896][ T6581] path_mount+0x57c/0xfe8 [ 202.655762][ T6581] __arm64_sys_mount+0x488/0x5f8 [ 202.656756][ T6581] invoke_syscall+0x98/0x28c [ 202.657711][ T6581] el0_svc_common+0x13c/0x258 [ 202.658641][ T6581] do_el0_svc+0x5c/0x140 [ 202.659530][ T6581] el0_svc+0x78/0x1d4 [ 202.660430][ T6581] el0t_64_sync_handler+0xcc/0xe4 [ 202.661517][ T6581] el0t_64_sync+0x1a0/0x1a4 [ 202.663826][ T6581] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 202.665958][ T6581] gfs2: fsid=}: error -17 adding sysfs files [ 202.800559][ T6584] loop1: detected capacity change from 0 to 32768 [ 202.808499][ T6584] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 202.809845][ T6584] CPU: 0 PID: 6584 Comm: syz.1.533 Not tainted syzkaller #0 [ 202.811193][ T6584] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 202.813221][ T6584] Call trace: [ 202.813867][ T6584] dump_backtrace+0x0/0x458 [ 202.814773][ T6584] show_stack+0x2c/0x3c [ 202.815522][ T6584] __dump_stack+0x30/0x40 [ 202.816340][ T6584] dump_stack_lvl+0xf4/0x15c [ 202.817244][ T6584] dump_stack+0x1c/0x5c [ 202.818102][ T6584] sysfs_create_dir_ns+0x244/0x264 [ 202.819169][ T6584] kobject_add_internal+0x594/0xc2c [ 202.820233][ T6584] kobject_init_and_add+0x128/0x194 [ 202.821258][ T6584] gfs2_sys_fs_add+0x208/0x428 [ 202.822186][ T6584] gfs2_fill_super+0xe20/0x1a9c [ 202.823215][ T6584] get_tree_bdev+0x35c/0x54c [ 202.824120][ T6584] gfs2_get_tree+0x58/0x1b8 [ 202.824965][ T6584] vfs_get_tree+0x90/0x278 [ 202.825879][ T6584] do_new_mount+0x228/0x818 [ 202.826799][ T6584] path_mount+0x57c/0xfe8 [ 202.827686][ T6584] __arm64_sys_mount+0x488/0x5f8 [ 202.828713][ T6584] invoke_syscall+0x98/0x28c [ 202.829748][ T6584] el0_svc_common+0x13c/0x258 [ 202.830813][ T6584] do_el0_svc+0x5c/0x140 [ 202.831750][ T6584] el0_svc+0x78/0x1d4 [ 202.832597][ T6584] el0t_64_sync_handler+0xcc/0xe4 [ 202.833612][ T6584] el0t_64_sync+0x1a0/0x1a4 [ 202.834681][ T6584] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 202.836910][ T6584] gfs2: fsid=}: error -17 adding sysfs files [ 202.968841][ T6587] loop1: detected capacity change from 0 to 32768 [ 203.050042][ T6587] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 203.051404][ T6587] CPU: 1 PID: 6587 Comm: syz.1.534 Not tainted syzkaller #0 [ 203.052776][ T6587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 203.054593][ T6587] Call trace: [ 203.055209][ T6587] dump_backtrace+0x0/0x458 [ 203.056120][ T6587] show_stack+0x2c/0x3c [ 203.056872][ T6587] __dump_stack+0x30/0x40 [ 203.057710][ T6587] dump_stack_lvl+0xf4/0x15c [ 203.058628][ T6587] dump_stack+0x1c/0x5c [ 203.059466][ T6587] sysfs_create_dir_ns+0x244/0x264 [ 203.060552][ T6587] kobject_add_internal+0x594/0xc2c [ 203.061712][ T6587] kobject_init_and_add+0x128/0x194 [ 203.062833][ T6587] gfs2_sys_fs_add+0x208/0x428 [ 203.063876][ T6587] gfs2_fill_super+0xe20/0x1a9c [ 203.064951][ T6587] get_tree_bdev+0x35c/0x54c [ 203.065987][ T6587] gfs2_get_tree+0x58/0x1b8 [ 203.066933][ T6587] vfs_get_tree+0x90/0x278 [ 203.067839][ T6587] do_new_mount+0x228/0x818 [ 203.068787][ T6587] path_mount+0x57c/0xfe8 [ 203.069652][ T6587] __arm64_sys_mount+0x488/0x5f8 [ 203.070733][ T6587] invoke_syscall+0x98/0x28c [ 203.071719][ T6587] el0_svc_common+0x13c/0x258 [ 203.072752][ T6587] do_el0_svc+0x5c/0x140 [ 203.073584][ T6587] el0_svc+0x78/0x1d4 [ 203.074440][ T6587] el0t_64_sync_handler+0xcc/0xe4 [ 203.075441][ T6587] el0t_64_sync+0x1a0/0x1a4 [ 203.077659][ T6587] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 203.080018][ T6587] gfs2: fsid=}: error -17 adding sysfs files [ 203.217258][ T6590] loop1: detected capacity change from 0 to 32768 [ 203.273904][ T6590] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 203.275504][ T6590] CPU: 0 PID: 6590 Comm: syz.1.535 Not tainted syzkaller #0 [ 203.277095][ T6590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 203.279214][ T6590] Call trace: [ 203.279896][ T6590] dump_backtrace+0x0/0x458 [ 203.280774][ T6590] show_stack+0x2c/0x3c [ 203.281612][ T6590] __dump_stack+0x30/0x40 [ 203.282463][ T6590] dump_stack_lvl+0xf4/0x15c [ 203.283385][ T6590] dump_stack+0x1c/0x5c [ 203.284204][ T6590] sysfs_create_dir_ns+0x244/0x264 [ 203.285180][ T6590] kobject_add_internal+0x594/0xc2c [ 203.286142][ T6590] kobject_init_and_add+0x128/0x194 [ 203.287146][ T6590] gfs2_sys_fs_add+0x208/0x428 [ 203.288066][ T6590] gfs2_fill_super+0xe20/0x1a9c [ 203.289021][ T6590] get_tree_bdev+0x35c/0x54c [ 203.289855][ T6590] gfs2_get_tree+0x58/0x1b8 [ 203.290688][ T6590] vfs_get_tree+0x90/0x278 [ 203.291502][ T6590] do_new_mount+0x228/0x818 [ 203.292360][ T6590] path_mount+0x57c/0xfe8 [ 203.293176][ T6590] __arm64_sys_mount+0x488/0x5f8 [ 203.294083][ T6590] invoke_syscall+0x98/0x28c [ 203.294942][ T6590] el0_svc_common+0x13c/0x258 [ 203.295831][ T6590] do_el0_svc+0x5c/0x140 [ 203.296635][ T6590] el0_svc+0x78/0x1d4 [ 203.297378][ T6590] el0t_64_sync_handler+0xcc/0xe4 [ 203.298285][ T6590] el0t_64_sync+0x1a0/0x1a4 [ 203.301409][ T6590] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 203.303519][ T6590] gfs2: fsid=}: error -17 adding sysfs files [ 203.527321][ T6593] loop1: detected capacity change from 0 to 32768 [ 203.580620][ T6593] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 203.582083][ T6593] CPU: 1 PID: 6593 Comm: syz.1.536 Not tainted syzkaller #0 [ 203.583604][ T6593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 203.585451][ T6593] Call trace: [ 203.586042][ T6593] dump_backtrace+0x0/0x458 [ 203.586962][ T6593] show_stack+0x2c/0x3c [ 203.587828][ T6593] __dump_stack+0x30/0x40 [ 203.588652][ T6593] dump_stack_lvl+0xf4/0x15c [ 203.589551][ T6593] dump_stack+0x1c/0x5c [ 203.590325][ T6593] sysfs_create_dir_ns+0x244/0x264 [ 203.591301][ T6593] kobject_add_internal+0x594/0xc2c [ 203.592338][ T6593] kobject_init_and_add+0x128/0x194 [ 203.593444][ T6593] gfs2_sys_fs_add+0x208/0x428 [ 203.594458][ T6593] gfs2_fill_super+0xe20/0x1a9c [ 203.595468][ T6593] get_tree_bdev+0x35c/0x54c [ 203.596384][ T6593] gfs2_get_tree+0x58/0x1b8 [ 203.597359][ T6593] vfs_get_tree+0x90/0x278 [ 203.598192][ T6593] do_new_mount+0x228/0x818 [ 203.599175][ T6593] path_mount+0x57c/0xfe8 [ 203.600040][ T6593] __arm64_sys_mount+0x488/0x5f8 [ 203.600960][ T6593] invoke_syscall+0x98/0x28c [ 203.601838][ T6593] el0_svc_common+0x13c/0x258 [ 203.602687][ T6593] do_el0_svc+0x5c/0x140 [ 203.603578][ T6593] el0_svc+0x78/0x1d4 [ 203.604428][ T6593] el0t_64_sync_handler+0xcc/0xe4 [ 203.605494][ T6593] el0t_64_sync+0x1a0/0x1a4 [ 203.613150][ T6593] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 203.615823][ T6593] gfs2: fsid=}: error -17 adding sysfs files [ 203.906958][ T6597] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 203.908383][ T6597] CPU: 1 PID: 6597 Comm: syz.1.537 Not tainted syzkaller #0 [ 203.909642][ T6597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 203.911421][ T6597] Call trace: [ 203.912079][ T6597] dump_backtrace+0x0/0x458 [ 203.912968][ T6597] show_stack+0x2c/0x3c [ 203.913716][ T6597] __dump_stack+0x30/0x40 [ 203.914519][ T6597] dump_stack_lvl+0xf4/0x15c [ 203.915410][ T6597] dump_stack+0x1c/0x5c [ 203.916234][ T6597] sysfs_create_dir_ns+0x244/0x264 [ 203.917263][ T6597] kobject_add_internal+0x594/0xc2c [ 203.918317][ T6597] kobject_init_and_add+0x128/0x194 [ 203.919378][ T6597] gfs2_sys_fs_add+0x208/0x428 [ 203.920284][ T6597] gfs2_fill_super+0xe20/0x1a9c [ 203.921251][ T6597] get_tree_bdev+0x35c/0x54c [ 203.922124][ T6597] gfs2_get_tree+0x58/0x1b8 [ 203.922984][ T6597] vfs_get_tree+0x90/0x278 [ 203.923741][ T6597] do_new_mount+0x228/0x818 [ 203.924554][ T6597] path_mount+0x57c/0xfe8 [ 203.925369][ T6597] __arm64_sys_mount+0x488/0x5f8 [ 203.926294][ T6597] invoke_syscall+0x98/0x28c [ 203.927160][ T6597] el0_svc_common+0x13c/0x258 [ 203.928025][ T6597] do_el0_svc+0x5c/0x140 [ 203.928805][ T6597] el0_svc+0x78/0x1d4 [ 203.929598][ T6597] el0t_64_sync_handler+0xcc/0xe4 [ 203.930599][ T6597] el0t_64_sync+0x1a0/0x1a4 [ 203.933122][ T6597] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 203.935553][ T6597] gfs2: fsid=}: error -17 adding sysfs files [ 204.181203][ T6600] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 204.182541][ T6600] CPU: 0 PID: 6600 Comm: syz.1.538 Not tainted syzkaller #0 [ 204.183886][ T6600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 204.185834][ T6600] Call trace: [ 204.186515][ T6600] dump_backtrace+0x0/0x458 [ 204.187486][ T6600] show_stack+0x2c/0x3c [ 204.188401][ T6600] __dump_stack+0x30/0x40 [ 204.189270][ T6600] dump_stack_lvl+0xf4/0x15c [ 204.190267][ T6600] dump_stack+0x1c/0x5c [ 204.191133][ T6600] sysfs_create_dir_ns+0x244/0x264 [ 204.192220][ T6600] kobject_add_internal+0x594/0xc2c [ 204.193318][ T6600] kobject_init_and_add+0x128/0x194 [ 204.194509][ T6600] gfs2_sys_fs_add+0x208/0x428 [ 204.195484][ T6600] gfs2_fill_super+0xe20/0x1a9c [ 204.196596][ T6600] get_tree_bdev+0x35c/0x54c [ 204.197639][ T6600] gfs2_get_tree+0x58/0x1b8 [ 204.198669][ T6600] vfs_get_tree+0x90/0x278 [ 204.199675][ T6600] do_new_mount+0x228/0x818 [ 204.200633][ T6600] path_mount+0x57c/0xfe8 [ 204.201540][ T6600] __arm64_sys_mount+0x488/0x5f8 [ 204.202595][ T6600] invoke_syscall+0x98/0x28c [ 204.203634][ T6600] el0_svc_common+0x13c/0x258 [ 204.204683][ T6600] do_el0_svc+0x5c/0x140 [ 204.205603][ T6600] el0_svc+0x78/0x1d4 [ 204.206436][ T6600] el0t_64_sync_handler+0xcc/0xe4 [ 204.207540][ T6600] el0t_64_sync+0x1a0/0x1a4 [ 204.209912][ T6600] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 204.212739][ T6600] gfs2: fsid=}: error -17 adding sysfs files [ 204.371417][ T6603] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 204.372747][ T6603] CPU: 0 PID: 6603 Comm: syz.1.539 Not tainted syzkaller #0 [ 204.374268][ T6603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 204.376321][ T6603] Call trace: [ 204.376973][ T6603] dump_backtrace+0x0/0x458 [ 204.377859][ T6603] show_stack+0x2c/0x3c [ 204.378717][ T6603] __dump_stack+0x30/0x40 [ 204.379645][ T6603] dump_stack_lvl+0xf4/0x15c [ 204.380515][ T6603] dump_stack+0x1c/0x5c [ 204.381375][ T6603] sysfs_create_dir_ns+0x244/0x264 [ 204.382408][ T6603] kobject_add_internal+0x594/0xc2c [ 204.383492][ T6603] kobject_init_and_add+0x128/0x194 [ 204.384575][ T6603] gfs2_sys_fs_add+0x208/0x428 [ 204.385621][ T6603] gfs2_fill_super+0xe20/0x1a9c [ 204.386685][ T6603] get_tree_bdev+0x35c/0x54c [ 204.387671][ T6603] gfs2_get_tree+0x58/0x1b8 [ 204.388629][ T6603] vfs_get_tree+0x90/0x278 [ 204.389553][ T6603] do_new_mount+0x228/0x818 [ 204.390443][ T6603] path_mount+0x57c/0xfe8 [ 204.391357][ T6603] __arm64_sys_mount+0x488/0x5f8 [ 204.392321][ T6603] invoke_syscall+0x98/0x28c [ 204.393304][ T6603] el0_svc_common+0x13c/0x258 [ 204.394183][ T6603] do_el0_svc+0x5c/0x140 [ 204.395157][ T6603] el0_svc+0x78/0x1d4 [ 204.396026][ T6603] el0t_64_sync_handler+0xcc/0xe4 [ 204.397154][ T6603] el0t_64_sync+0x1a0/0x1a4 [ 204.398903][ T6603] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 204.401590][ T6603] gfs2: fsid=}: error -17 adding sysfs files [ 204.587301][ T6606] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 204.588699][ T6606] CPU: 1 PID: 6606 Comm: syz.1.540 Not tainted syzkaller #0 [ 204.590059][ T6606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 204.591890][ T6606] Call trace: [ 204.592452][ T6606] dump_backtrace+0x0/0x458 [ 204.593236][ T6606] show_stack+0x2c/0x3c [ 204.594001][ T6606] __dump_stack+0x30/0x40 [ 204.594768][ T6606] dump_stack_lvl+0xf4/0x15c [ 204.595565][ T6606] dump_stack+0x1c/0x5c [ 204.596410][ T6606] sysfs_create_dir_ns+0x244/0x264 [ 204.597466][ T6606] kobject_add_internal+0x594/0xc2c [ 204.598399][ T6606] kobject_init_and_add+0x128/0x194 [ 204.599577][ T6606] gfs2_sys_fs_add+0x208/0x428 [ 204.600494][ T6606] gfs2_fill_super+0xe20/0x1a9c [ 204.601440][ T6606] get_tree_bdev+0x35c/0x54c [ 204.602384][ T6606] gfs2_get_tree+0x58/0x1b8 [ 204.603298][ T6606] vfs_get_tree+0x90/0x278 [ 204.604200][ T6606] do_new_mount+0x228/0x818 [ 204.605077][ T6606] path_mount+0x57c/0xfe8 [ 204.606034][ T6606] __arm64_sys_mount+0x488/0x5f8 [ 204.607073][ T6606] invoke_syscall+0x98/0x28c [ 204.608039][ T6606] el0_svc_common+0x13c/0x258 [ 204.608993][ T6606] do_el0_svc+0x5c/0x140 [ 204.609814][ T6606] el0_svc+0x78/0x1d4 [ 204.610570][ T6606] el0t_64_sync_handler+0xcc/0xe4 [ 204.611529][ T6606] el0t_64_sync+0x1a0/0x1a4 [ 204.612689][ T6606] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 204.615029][ T6606] gfs2: fsid=}: error -17 adding sysfs files [ 204.756822][ T6609] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 204.758172][ T6609] CPU: 0 PID: 6609 Comm: syz.1.541 Not tainted syzkaller #0 [ 204.759559][ T6609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 204.761302][ T6609] Call trace: [ 204.761863][ T6609] dump_backtrace+0x0/0x458 [ 204.762641][ T6609] show_stack+0x2c/0x3c [ 204.763368][ T6609] __dump_stack+0x30/0x40 [ 204.764121][ T6609] dump_stack_lvl+0xf4/0x15c [ 204.764935][ T6609] dump_stack+0x1c/0x5c [ 204.765646][ T6609] sysfs_create_dir_ns+0x244/0x264 [ 204.766700][ T6609] kobject_add_internal+0x594/0xc2c [ 204.767749][ T6609] kobject_init_and_add+0x128/0x194 [ 204.768760][ T6609] gfs2_sys_fs_add+0x208/0x428 [ 204.769746][ T6609] gfs2_fill_super+0xe20/0x1a9c [ 204.770674][ T6609] get_tree_bdev+0x35c/0x54c [ 204.771614][ T6609] gfs2_get_tree+0x58/0x1b8 [ 204.772549][ T6609] vfs_get_tree+0x90/0x278 [ 204.773514][ T6609] do_new_mount+0x228/0x818 [ 204.774483][ T6609] path_mount+0x57c/0xfe8 [ 204.775436][ T6609] __arm64_sys_mount+0x488/0x5f8 [ 204.776516][ T6609] invoke_syscall+0x98/0x28c [ 204.777513][ T6609] el0_svc_common+0x13c/0x258 [ 204.778503][ T6609] do_el0_svc+0x5c/0x140 [ 204.779439][ T6609] el0_svc+0x78/0x1d4 [ 204.780247][ T6609] el0t_64_sync_handler+0xcc/0xe4 [ 204.781298][ T6609] el0t_64_sync+0x1a0/0x1a4 [ 204.783608][ T6609] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 204.785809][ T6609] gfs2: fsid=}: error -17 adding sysfs files [ 204.826096][ T5001] Bluetooth: hci1: command 0x0406 tx timeout [ 205.017207][ T6612] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 205.018901][ T6612] CPU: 0 PID: 6612 Comm: syz.1.542 Not tainted syzkaller #0 [ 205.020278][ T6612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 205.022421][ T6612] Call trace: [ 205.023105][ T6612] dump_backtrace+0x0/0x458 [ 205.024005][ T6612] show_stack+0x2c/0x3c [ 205.024809][ T6612] __dump_stack+0x30/0x40 [ 205.025628][ T6612] dump_stack_lvl+0xf4/0x15c [ 205.026561][ T6612] dump_stack+0x1c/0x5c [ 205.027486][ T6612] sysfs_create_dir_ns+0x244/0x264 [ 205.028536][ T6612] kobject_add_internal+0x594/0xc2c [ 205.029626][ T6612] kobject_init_and_add+0x128/0x194 [ 205.030615][ T6612] gfs2_sys_fs_add+0x208/0x428 [ 205.031657][ T6612] gfs2_fill_super+0xe20/0x1a9c [ 205.032780][ T6612] get_tree_bdev+0x35c/0x54c [ 205.033722][ T6612] gfs2_get_tree+0x58/0x1b8 [ 205.034564][ T6612] vfs_get_tree+0x90/0x278 [ 205.035437][ T6612] do_new_mount+0x228/0x818 [ 205.036279][ T6612] path_mount+0x57c/0xfe8 [ 205.037081][ T6612] __arm64_sys_mount+0x488/0x5f8 [ 205.038028][ T6612] invoke_syscall+0x98/0x28c [ 205.038846][ T6612] el0_svc_common+0x13c/0x258 [ 205.039706][ T6612] do_el0_svc+0x5c/0x140 [ 205.040483][ T6612] el0_svc+0x78/0x1d4 [ 205.041282][ T6612] el0t_64_sync_handler+0xcc/0xe4 [ 205.042334][ T6612] el0t_64_sync+0x1a0/0x1a4 [ 205.044698][ T6612] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 205.047659][ T6612] gfs2: fsid=}: error -17 adding sysfs files [ 205.217838][ T6615] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 205.219243][ T6615] CPU: 1 PID: 6615 Comm: syz.1.543 Not tainted syzkaller #0 [ 205.220611][ T6615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 205.222577][ T6615] Call trace: [ 205.223131][ T6615] dump_backtrace+0x0/0x458 [ 205.223895][ T6615] show_stack+0x2c/0x3c [ 205.224611][ T6615] __dump_stack+0x30/0x40 [ 205.225361][ T6615] dump_stack_lvl+0xf4/0x15c [ 205.226214][ T6615] dump_stack+0x1c/0x5c [ 205.227069][ T6615] sysfs_create_dir_ns+0x244/0x264 [ 205.228135][ T6615] kobject_add_internal+0x594/0xc2c [ 205.229220][ T6615] kobject_init_and_add+0x128/0x194 [ 205.230298][ T6615] gfs2_sys_fs_add+0x208/0x428 [ 205.231199][ T6615] gfs2_fill_super+0xe20/0x1a9c [ 205.232184][ T6615] get_tree_bdev+0x35c/0x54c [ 205.233096][ T6615] gfs2_get_tree+0x58/0x1b8 [ 205.233959][ T6615] vfs_get_tree+0x90/0x278 [ 205.234819][ T6615] do_new_mount+0x228/0x818 [ 205.235644][ T6615] path_mount+0x57c/0xfe8 [ 205.236454][ T6615] __arm64_sys_mount+0x488/0x5f8 [ 205.237426][ T6615] invoke_syscall+0x98/0x28c [ 205.238263][ T6615] el0_svc_common+0x13c/0x258 [ 205.239127][ T6615] do_el0_svc+0x5c/0x140 [ 205.239914][ T6615] el0_svc+0x78/0x1d4 [ 205.240647][ T6615] el0t_64_sync_handler+0xcc/0xe4 [ 205.241534][ T6615] el0t_64_sync+0x1a0/0x1a4 [ 205.244002][ T6615] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 205.246589][ T6615] gfs2: fsid=}: error -17 adding sysfs files [ 205.425980][ T6618] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 205.427368][ T6618] CPU: 0 PID: 6618 Comm: syz.1.544 Not tainted syzkaller #0 [ 205.428684][ T6618] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 205.430600][ T6618] Call trace: [ 205.431185][ T6618] dump_backtrace+0x0/0x458 [ 205.432055][ T6618] show_stack+0x2c/0x3c [ 205.432884][ T6618] __dump_stack+0x30/0x40 [ 205.433738][ T6618] dump_stack_lvl+0xf4/0x15c [ 205.434643][ T6618] dump_stack+0x1c/0x5c [ 205.435571][ T6618] sysfs_create_dir_ns+0x244/0x264 [ 205.436668][ T6618] kobject_add_internal+0x594/0xc2c [ 205.437666][ T6618] kobject_init_and_add+0x128/0x194 [ 205.438692][ T6618] gfs2_sys_fs_add+0x208/0x428 [ 205.439642][ T6618] gfs2_fill_super+0xe20/0x1a9c [ 205.440562][ T6618] get_tree_bdev+0x35c/0x54c [ 205.441484][ T6618] gfs2_get_tree+0x58/0x1b8 [ 205.442520][ T6618] vfs_get_tree+0x90/0x278 [ 205.443500][ T6618] do_new_mount+0x228/0x818 [ 205.444455][ T6618] path_mount+0x57c/0xfe8 [ 205.445408][ T6618] __arm64_sys_mount+0x488/0x5f8 [ 205.446348][ T6618] invoke_syscall+0x98/0x28c [ 205.447204][ T6618] el0_svc_common+0x13c/0x258 [ 205.448074][ T6618] do_el0_svc+0x5c/0x140 [ 205.448870][ T6618] el0_svc+0x78/0x1d4 [ 205.449570][ T6618] el0t_64_sync_handler+0xcc/0xe4 [ 205.450614][ T6618] el0t_64_sync+0x1a0/0x1a4 [ 205.452038][ T6618] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 205.454749][ T6618] gfs2: fsid=}: error -17 adding sysfs files [ 205.690172][ T6621] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 205.691603][ T6621] CPU: 1 PID: 6621 Comm: syz.1.545 Not tainted syzkaller #0 [ 205.692907][ T6621] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 205.694688][ T6621] Call trace: [ 205.695385][ T6621] dump_backtrace+0x0/0x458 [ 205.696404][ T6621] show_stack+0x2c/0x3c [ 205.697314][ T6621] __dump_stack+0x30/0x40 [ 205.698338][ T6621] dump_stack_lvl+0xf4/0x15c [ 205.699298][ T6621] dump_stack+0x1c/0x5c [ 205.700184][ T6621] sysfs_create_dir_ns+0x244/0x264 [ 205.701280][ T6621] kobject_add_internal+0x594/0xc2c [ 205.702393][ T6621] kobject_init_and_add+0x128/0x194 [ 205.703511][ T6621] gfs2_sys_fs_add+0x208/0x428 [ 205.704442][ T6621] gfs2_fill_super+0xe20/0x1a9c [ 205.705430][ T6621] get_tree_bdev+0x35c/0x54c [ 205.706405][ T6621] gfs2_get_tree+0x58/0x1b8 [ 205.707274][ T6621] vfs_get_tree+0x90/0x278 [ 205.708159][ T6621] do_new_mount+0x228/0x818 [ 205.709072][ T6621] path_mount+0x57c/0xfe8 [ 205.709961][ T6621] __arm64_sys_mount+0x488/0x5f8 [ 205.710996][ T6621] invoke_syscall+0x98/0x28c [ 205.711953][ T6621] el0_svc_common+0x13c/0x258 [ 205.712952][ T6621] do_el0_svc+0x5c/0x140 [ 205.713858][ T6621] el0_svc+0x78/0x1d4 [ 205.714727][ T6621] el0t_64_sync_handler+0xcc/0xe4 [ 205.715764][ T6621] el0t_64_sync+0x1a0/0x1a4 [ 205.718122][ T6621] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 205.720173][ T6621] gfs2: fsid=}: error -17 adding sysfs files 1970/01/01 00:03:25 executed programs: 532 [ 205.947641][ T6624] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 205.949071][ T6624] CPU: 1 PID: 6624 Comm: syz.1.546 Not tainted syzkaller #0 [ 205.950510][ T6624] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 205.952516][ T6624] Call trace: [ 205.953206][ T6624] dump_backtrace+0x0/0x458 [ 205.954151][ T6624] show_stack+0x2c/0x3c [ 205.955027][ T6624] __dump_stack+0x30/0x40 [ 205.955936][ T6624] dump_stack_lvl+0xf4/0x15c [ 205.956802][ T6624] dump_stack+0x1c/0x5c [ 205.957589][ T6624] sysfs_create_dir_ns+0x244/0x264 [ 205.958533][ T6624] kobject_add_internal+0x594/0xc2c [ 205.959501][ T6624] kobject_init_and_add+0x128/0x194 [ 205.960476][ T6624] gfs2_sys_fs_add+0x208/0x428 [ 205.961360][ T6624] gfs2_fill_super+0xe20/0x1a9c [ 205.962321][ T6624] get_tree_bdev+0x35c/0x54c [ 205.963189][ T6624] gfs2_get_tree+0x58/0x1b8 [ 205.964049][ T6624] vfs_get_tree+0x90/0x278 [ 205.964867][ T6624] do_new_mount+0x228/0x818 [ 205.965707][ T6624] path_mount+0x57c/0xfe8 [ 205.966525][ T6624] __arm64_sys_mount+0x488/0x5f8 [ 205.967428][ T6624] invoke_syscall+0x98/0x28c [ 205.968291][ T6624] el0_svc_common+0x13c/0x258 [ 205.969153][ T6624] do_el0_svc+0x5c/0x140 [ 205.969946][ T6624] el0_svc+0x78/0x1d4 [ 205.970687][ T6624] el0t_64_sync_handler+0xcc/0xe4 [ 205.971634][ T6624] el0t_64_sync+0x1a0/0x1a4 [ 205.974182][ T6624] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 205.976667][ T6624] gfs2: fsid=}: error -17 adding sysfs files [ 206.190321][ T6627] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 206.191867][ T6627] CPU: 0 PID: 6627 Comm: syz.1.547 Not tainted syzkaller #0 [ 206.193297][ T6627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 206.195067][ T6627] Call trace: [ 206.195672][ T6627] dump_backtrace+0x0/0x458 [ 206.196615][ T6627] show_stack+0x2c/0x3c [ 206.197347][ T6627] __dump_stack+0x30/0x40 [ 206.198136][ T6627] dump_stack_lvl+0xf4/0x15c [ 206.199131][ T6627] dump_stack+0x1c/0x5c [ 206.200004][ T6627] sysfs_create_dir_ns+0x244/0x264 [ 206.201186][ T6627] kobject_add_internal+0x594/0xc2c [ 206.202300][ T6627] kobject_init_and_add+0x128/0x194 [ 206.203350][ T6627] gfs2_sys_fs_add+0x208/0x428 [ 206.204254][ T6627] gfs2_fill_super+0xe20/0x1a9c [ 206.205151][ T6627] get_tree_bdev+0x35c/0x54c [ 206.206059][ T6627] gfs2_get_tree+0x58/0x1b8 [ 206.206958][ T6627] vfs_get_tree+0x90/0x278 [ 206.207787][ T6627] do_new_mount+0x228/0x818 [ 206.208658][ T6627] path_mount+0x57c/0xfe8 [ 206.209477][ T6627] __arm64_sys_mount+0x488/0x5f8 [ 206.210455][ T6627] invoke_syscall+0x98/0x28c [ 206.211259][ T6627] el0_svc_common+0x13c/0x258 [ 206.212176][ T6627] do_el0_svc+0x5c/0x140 [ 206.212988][ T6627] el0_svc+0x78/0x1d4 [ 206.213775][ T6627] el0t_64_sync_handler+0xcc/0xe4 [ 206.214742][ T6627] el0t_64_sync+0x1a0/0x1a4 [ 206.215811][ T6627] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 206.218691][ T6627] gfs2: fsid=}: error -17 adding sysfs files [ 206.366377][ T6630] set_capacity_and_notify: 11 callbacks suppressed [ 206.366387][ T6630] loop1: detected capacity change from 0 to 32768 [ 206.435096][ T6630] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 206.436591][ T6630] CPU: 1 PID: 6630 Comm: syz.1.548 Not tainted syzkaller #0 [ 206.437893][ T6630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 206.439733][ T6630] Call trace: [ 206.440309][ T6630] dump_backtrace+0x0/0x458 [ 206.441117][ T6630] show_stack+0x2c/0x3c [ 206.441928][ T6630] __dump_stack+0x30/0x40 [ 206.442830][ T6630] dump_stack_lvl+0xf4/0x15c [ 206.443726][ T6630] dump_stack+0x1c/0x5c [ 206.444555][ T6630] sysfs_create_dir_ns+0x244/0x264 [ 206.445534][ T6630] kobject_add_internal+0x594/0xc2c [ 206.446665][ T6630] kobject_init_and_add+0x128/0x194 [ 206.447672][ T6630] gfs2_sys_fs_add+0x208/0x428 [ 206.448603][ T6630] gfs2_fill_super+0xe20/0x1a9c [ 206.449632][ T6630] get_tree_bdev+0x35c/0x54c [ 206.450590][ T6630] gfs2_get_tree+0x58/0x1b8 [ 206.451523][ T6630] vfs_get_tree+0x90/0x278 [ 206.452384][ T6630] do_new_mount+0x228/0x818 [ 206.453293][ T6630] path_mount+0x57c/0xfe8 [ 206.454119][ T6630] __arm64_sys_mount+0x488/0x5f8 [ 206.455069][ T6630] invoke_syscall+0x98/0x28c [ 206.455991][ T6630] el0_svc_common+0x13c/0x258 [ 206.456913][ T6630] do_el0_svc+0x5c/0x140 [ 206.457744][ T6630] el0_svc+0x78/0x1d4 [ 206.458575][ T6630] el0t_64_sync_handler+0xcc/0xe4 [ 206.459485][ T6630] el0t_64_sync+0x1a0/0x1a4 [ 206.461940][ T6630] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 206.464081][ T6630] gfs2: fsid=}: error -17 adding sysfs files [ 206.656325][ T6633] loop1: detected capacity change from 0 to 32768 [ 206.664111][ T6633] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 206.665507][ T6633] CPU: 0 PID: 6633 Comm: syz.1.549 Not tainted syzkaller #0 [ 206.667029][ T6633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 206.669075][ T6633] Call trace: [ 206.669756][ T6633] dump_backtrace+0x0/0x458 [ 206.670707][ T6633] show_stack+0x2c/0x3c [ 206.671571][ T6633] __dump_stack+0x30/0x40 [ 206.672500][ T6633] dump_stack_lvl+0xf4/0x15c [ 206.673470][ T6633] dump_stack+0x1c/0x5c [ 206.674328][ T6633] sysfs_create_dir_ns+0x244/0x264 [ 206.675394][ T6633] kobject_add_internal+0x594/0xc2c [ 206.676553][ T6633] kobject_init_and_add+0x128/0x194 [ 206.677608][ T6633] gfs2_sys_fs_add+0x208/0x428 [ 206.678545][ T6633] gfs2_fill_super+0xe20/0x1a9c [ 206.679629][ T6633] get_tree_bdev+0x35c/0x54c [ 206.680587][ T6633] gfs2_get_tree+0x58/0x1b8 [ 206.681641][ T6633] vfs_get_tree+0x90/0x278 [ 206.682559][ T6633] do_new_mount+0x228/0x818 [ 206.683414][ T6633] path_mount+0x57c/0xfe8 [ 206.684219][ T6633] __arm64_sys_mount+0x488/0x5f8 [ 206.685167][ T6633] invoke_syscall+0x98/0x28c [ 206.686038][ T6633] el0_svc_common+0x13c/0x258 [ 206.686970][ T6633] do_el0_svc+0x5c/0x140 [ 206.687877][ T6633] el0_svc+0x78/0x1d4 [ 206.688703][ T6633] el0t_64_sync_handler+0xcc/0xe4 [ 206.689786][ T6633] el0t_64_sync+0x1a0/0x1a4 [ 206.691296][ T6633] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 206.693733][ T6633] gfs2: fsid=}: error -17 adding sysfs files [ 206.826709][ T6636] loop1: detected capacity change from 0 to 32768 [ 206.834480][ T6636] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 206.836347][ T6636] CPU: 1 PID: 6636 Comm: syz.1.550 Not tainted syzkaller #0 [ 206.837715][ T6636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 206.839485][ T6636] Call trace: [ 206.840065][ T6636] dump_backtrace+0x0/0x458 [ 206.840967][ T6636] show_stack+0x2c/0x3c [ 206.841736][ T6636] __dump_stack+0x30/0x40 [ 206.842661][ T6636] dump_stack_lvl+0xf4/0x15c [ 206.843642][ T6636] dump_stack+0x1c/0x5c [ 206.844488][ T6636] sysfs_create_dir_ns+0x244/0x264 [ 206.845538][ T6636] kobject_add_internal+0x594/0xc2c [ 206.846552][ T6636] kobject_init_and_add+0x128/0x194 [ 206.847644][ T6636] gfs2_sys_fs_add+0x208/0x428 [ 206.848587][ T6636] gfs2_fill_super+0xe20/0x1a9c [ 206.849550][ T6636] get_tree_bdev+0x35c/0x54c [ 206.850496][ T6636] gfs2_get_tree+0x58/0x1b8 [ 206.851386][ T6636] vfs_get_tree+0x90/0x278 [ 206.852257][ T6636] do_new_mount+0x228/0x818 [ 206.853234][ T6636] path_mount+0x57c/0xfe8 [ 206.854184][ T6636] __arm64_sys_mount+0x488/0x5f8 [ 206.855253][ T6636] invoke_syscall+0x98/0x28c [ 206.856299][ T6636] el0_svc_common+0x13c/0x258 [ 206.857363][ T6636] do_el0_svc+0x5c/0x140 [ 206.858254][ T6636] el0_svc+0x78/0x1d4 [ 206.859161][ T6636] el0t_64_sync_handler+0xcc/0xe4 [ 206.860284][ T6636] el0t_64_sync+0x1a0/0x1a4 [ 206.862433][ T6636] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 206.864657][ T6636] gfs2: fsid=}: error -17 adding sysfs files [ 206.999235][ T6639] loop1: detected capacity change from 0 to 32768 [ 207.006623][ T6639] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 207.008065][ T6639] CPU: 0 PID: 6639 Comm: syz.1.551 Not tainted syzkaller #0 [ 207.009366][ T6639] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 207.011100][ T6639] Call trace: [ 207.011689][ T6639] dump_backtrace+0x0/0x458 [ 207.012433][ T6639] show_stack+0x2c/0x3c [ 207.013152][ T6639] __dump_stack+0x30/0x40 [ 207.013987][ T6639] dump_stack_lvl+0xf4/0x15c [ 207.014767][ T6639] dump_stack+0x1c/0x5c [ 207.015532][ T6639] sysfs_create_dir_ns+0x244/0x264 [ 207.016510][ T6639] kobject_add_internal+0x594/0xc2c [ 207.017528][ T6639] kobject_init_and_add+0x128/0x194 [ 207.018536][ T6639] gfs2_sys_fs_add+0x208/0x428 [ 207.019477][ T6639] gfs2_fill_super+0xe20/0x1a9c [ 207.020520][ T6639] get_tree_bdev+0x35c/0x54c [ 207.021547][ T6639] gfs2_get_tree+0x58/0x1b8 [ 207.022430][ T6639] vfs_get_tree+0x90/0x278 [ 207.023301][ T6639] do_new_mount+0x228/0x818 [ 207.024178][ T6639] path_mount+0x57c/0xfe8 [ 207.024948][ T6639] __arm64_sys_mount+0x488/0x5f8 [ 207.025831][ T6639] invoke_syscall+0x98/0x28c [ 207.026813][ T6639] el0_svc_common+0x13c/0x258 [ 207.027796][ T6639] do_el0_svc+0x5c/0x140 [ 207.028663][ T6639] el0_svc+0x78/0x1d4 [ 207.029479][ T6639] el0t_64_sync_handler+0xcc/0xe4 [ 207.030443][ T6639] el0t_64_sync+0x1a0/0x1a4 [ 207.034089][ T6639] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 207.037313][ T6639] gfs2: fsid=}: error -17 adding sysfs files [ 207.199428][ T6642] loop1: detected capacity change from 0 to 32768 [ 207.247133][ T6642] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 207.248395][ T6642] CPU: 0 PID: 6642 Comm: syz.1.552 Not tainted syzkaller #0 [ 207.249760][ T6642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 207.251701][ T6642] Call trace: [ 207.252343][ T6642] dump_backtrace+0x0/0x458 [ 207.253190][ T6642] show_stack+0x2c/0x3c [ 207.253930][ T6642] __dump_stack+0x30/0x40 [ 207.254725][ T6642] dump_stack_lvl+0xf4/0x15c [ 207.255577][ T6642] dump_stack+0x1c/0x5c [ 207.256349][ T6642] sysfs_create_dir_ns+0x244/0x264 [ 207.257309][ T6642] kobject_add_internal+0x594/0xc2c [ 207.258284][ T6642] kobject_init_and_add+0x128/0x194 [ 207.259383][ T6642] gfs2_sys_fs_add+0x208/0x428 [ 207.260374][ T6642] gfs2_fill_super+0xe20/0x1a9c [ 207.261312][ T6642] get_tree_bdev+0x35c/0x54c [ 207.262142][ T6642] gfs2_get_tree+0x58/0x1b8 [ 207.262998][ T6642] vfs_get_tree+0x90/0x278 [ 207.263818][ T6642] do_new_mount+0x228/0x818 [ 207.264703][ T6642] path_mount+0x57c/0xfe8 [ 207.265508][ T6642] __arm64_sys_mount+0x488/0x5f8 [ 207.266432][ T6642] invoke_syscall+0x98/0x28c [ 207.267288][ T6642] el0_svc_common+0x13c/0x258 [ 207.268168][ T6642] do_el0_svc+0x5c/0x140 [ 207.268994][ T6642] el0_svc+0x78/0x1d4 [ 207.269764][ T6642] el0t_64_sync_handler+0xcc/0xe4 [ 207.270764][ T6642] el0t_64_sync+0x1a0/0x1a4 [ 207.272856][ T6642] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 207.275278][ T6642] gfs2: fsid=}: error -17 adding sysfs files [ 207.406300][ T6645] loop1: detected capacity change from 0 to 32768 [ 207.413975][ T6645] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 207.415413][ T6645] CPU: 1 PID: 6645 Comm: syz.1.553 Not tainted syzkaller #0 [ 207.416911][ T6645] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 207.419139][ T6645] Call trace: [ 207.419860][ T6645] dump_backtrace+0x0/0x458 [ 207.420911][ T6645] show_stack+0x2c/0x3c [ 207.421819][ T6645] __dump_stack+0x30/0x40 [ 207.422789][ T6645] dump_stack_lvl+0xf4/0x15c [ 207.423700][ T6645] dump_stack+0x1c/0x5c [ 207.424471][ T6645] sysfs_create_dir_ns+0x244/0x264 [ 207.425461][ T6645] kobject_add_internal+0x594/0xc2c [ 207.426395][ T6645] kobject_init_and_add+0x128/0x194 [ 207.427397][ T6645] gfs2_sys_fs_add+0x208/0x428 [ 207.428407][ T6645] gfs2_fill_super+0xe20/0x1a9c [ 207.429504][ T6645] get_tree_bdev+0x35c/0x54c [ 207.430475][ T6645] gfs2_get_tree+0x58/0x1b8 [ 207.431342][ T6645] vfs_get_tree+0x90/0x278 [ 207.432194][ T6645] do_new_mount+0x228/0x818 [ 207.433085][ T6645] path_mount+0x57c/0xfe8 [ 207.433917][ T6645] __arm64_sys_mount+0x488/0x5f8 [ 207.434911][ T6645] invoke_syscall+0x98/0x28c [ 207.435887][ T6645] el0_svc_common+0x13c/0x258 [ 207.436831][ T6645] do_el0_svc+0x5c/0x140 [ 207.437763][ T6645] el0_svc+0x78/0x1d4 [ 207.438632][ T6645] el0t_64_sync_handler+0xcc/0xe4 [ 207.439668][ T6645] el0t_64_sync+0x1a0/0x1a4 [ 207.443074][ T6645] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 207.445356][ T6645] gfs2: fsid=}: error -17 adding sysfs files [ 207.622200][ T6648] loop1: detected capacity change from 0 to 32768 [ 207.676084][ T6648] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 207.677336][ T6648] CPU: 1 PID: 6648 Comm: syz.1.554 Not tainted syzkaller #0 [ 207.678723][ T6648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 207.680593][ T6648] Call trace: [ 207.681241][ T6648] dump_backtrace+0x0/0x458 [ 207.682192][ T6648] show_stack+0x2c/0x3c [ 207.682978][ T6648] __dump_stack+0x30/0x40 [ 207.683825][ T6648] dump_stack_lvl+0xf4/0x15c [ 207.684709][ T6648] dump_stack+0x1c/0x5c [ 207.685515][ T6648] sysfs_create_dir_ns+0x244/0x264 [ 207.686536][ T6648] kobject_add_internal+0x594/0xc2c [ 207.687633][ T6648] kobject_init_and_add+0x128/0x194 [ 207.688701][ T6648] gfs2_sys_fs_add+0x208/0x428 [ 207.689728][ T6648] gfs2_fill_super+0xe20/0x1a9c [ 207.690739][ T6648] get_tree_bdev+0x35c/0x54c [ 207.691777][ T6648] gfs2_get_tree+0x58/0x1b8 [ 207.692778][ T6648] vfs_get_tree+0x90/0x278 [ 207.693670][ T6648] do_new_mount+0x228/0x818 [ 207.694646][ T6648] path_mount+0x57c/0xfe8 [ 207.695614][ T6648] __arm64_sys_mount+0x488/0x5f8 [ 207.696775][ T6648] invoke_syscall+0x98/0x28c [ 207.697857][ T6648] el0_svc_common+0x13c/0x258 [ 207.698849][ T6648] do_el0_svc+0x5c/0x140 [ 207.699776][ T6648] el0_svc+0x78/0x1d4 [ 207.700675][ T6648] el0t_64_sync_handler+0xcc/0xe4 [ 207.701692][ T6648] el0t_64_sync+0x1a0/0x1a4 [ 207.704308][ T6648] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 207.707032][ T6648] gfs2: fsid=}: error -17 adding sysfs files [ 207.946160][ T6651] loop1: detected capacity change from 0 to 32768 [ 207.987272][ T6651] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 207.988565][ T6651] CPU: 1 PID: 6651 Comm: syz.1.555 Not tainted syzkaller #0 [ 207.989896][ T6651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 207.991678][ T6651] Call trace: [ 207.992263][ T6651] dump_backtrace+0x0/0x458 [ 207.993057][ T6651] show_stack+0x2c/0x3c [ 207.993776][ T6651] __dump_stack+0x30/0x40 [ 207.994556][ T6651] dump_stack_lvl+0xf4/0x15c [ 207.995385][ T6651] dump_stack+0x1c/0x5c [ 207.996160][ T6651] sysfs_create_dir_ns+0x244/0x264 [ 207.997134][ T6651] kobject_add_internal+0x594/0xc2c [ 207.998097][ T6651] kobject_init_and_add+0x128/0x194 [ 207.999147][ T6651] gfs2_sys_fs_add+0x208/0x428 [ 208.000037][ T6651] gfs2_fill_super+0xe20/0x1a9c [ 208.000946][ T6651] get_tree_bdev+0x35c/0x54c [ 208.001895][ T6651] gfs2_get_tree+0x58/0x1b8 [ 208.002758][ T6651] vfs_get_tree+0x90/0x278 [ 208.003653][ T6651] do_new_mount+0x228/0x818 [ 208.004572][ T6651] path_mount+0x57c/0xfe8 [ 208.005462][ T6651] __arm64_sys_mount+0x488/0x5f8 [ 208.006548][ T6651] invoke_syscall+0x98/0x28c [ 208.007468][ T6651] el0_svc_common+0x13c/0x258 [ 208.008481][ T6651] do_el0_svc+0x5c/0x140 [ 208.009402][ T6651] el0_svc+0x78/0x1d4 [ 208.010265][ T6651] el0t_64_sync_handler+0xcc/0xe4 [ 208.011348][ T6651] el0t_64_sync+0x1a0/0x1a4 [ 208.013858][ T6651] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 208.017508][ T6651] gfs2: fsid=}: error -17 adding sysfs files [ 208.150380][ T6654] loop1: detected capacity change from 0 to 32768 [ 208.158073][ T6654] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 208.159503][ T6654] CPU: 0 PID: 6654 Comm: syz.1.556 Not tainted syzkaller #0 [ 208.161070][ T6654] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 208.163113][ T6654] Call trace: [ 208.163768][ T6654] dump_backtrace+0x0/0x458 [ 208.164686][ T6654] show_stack+0x2c/0x3c [ 208.165493][ T6654] __dump_stack+0x30/0x40 [ 208.166389][ T6654] dump_stack_lvl+0xf4/0x15c [ 208.167384][ T6654] dump_stack+0x1c/0x5c [ 208.168241][ T6654] sysfs_create_dir_ns+0x244/0x264 [ 208.169306][ T6654] kobject_add_internal+0x594/0xc2c [ 208.170368][ T6654] kobject_init_and_add+0x128/0x194 [ 208.171437][ T6654] gfs2_sys_fs_add+0x208/0x428 [ 208.172401][ T6654] gfs2_fill_super+0xe20/0x1a9c [ 208.173511][ T6654] get_tree_bdev+0x35c/0x54c [ 208.174496][ T6654] gfs2_get_tree+0x58/0x1b8 [ 208.175468][ T6654] vfs_get_tree+0x90/0x278 [ 208.176474][ T6654] do_new_mount+0x228/0x818 [ 208.177505][ T6654] path_mount+0x57c/0xfe8 [ 208.178404][ T6654] __arm64_sys_mount+0x488/0x5f8 [ 208.179485][ T6654] invoke_syscall+0x98/0x28c [ 208.180475][ T6654] el0_svc_common+0x13c/0x258 [ 208.181385][ T6654] do_el0_svc+0x5c/0x140 [ 208.182248][ T6654] el0_svc+0x78/0x1d4 [ 208.183043][ T6654] el0t_64_sync_handler+0xcc/0xe4 [ 208.184096][ T6654] el0t_64_sync+0x1a0/0x1a4 [ 208.186576][ T6654] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 208.189175][ T6654] gfs2: fsid=}: error -17 adding sysfs files [ 208.326730][ T6657] loop1: detected capacity change from 0 to 32768 [ 208.387302][ T6657] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 208.388616][ T6657] CPU: 1 PID: 6657 Comm: syz.1.557 Not tainted syzkaller #0 [ 208.390038][ T6657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 208.392009][ T6657] Call trace: [ 208.392598][ T6657] dump_backtrace+0x0/0x458 [ 208.393391][ T6657] show_stack+0x2c/0x3c [ 208.394083][ T6657] __dump_stack+0x30/0x40 [ 208.394833][ T6657] dump_stack_lvl+0xf4/0x15c [ 208.395614][ T6657] dump_stack+0x1c/0x5c [ 208.396397][ T6657] sysfs_create_dir_ns+0x244/0x264 [ 208.397410][ T6657] kobject_add_internal+0x594/0xc2c [ 208.398381][ T6657] kobject_init_and_add+0x128/0x194 [ 208.399472][ T6657] gfs2_sys_fs_add+0x208/0x428 [ 208.400423][ T6657] gfs2_fill_super+0xe20/0x1a9c [ 208.401450][ T6657] get_tree_bdev+0x35c/0x54c [ 208.402410][ T6657] gfs2_get_tree+0x58/0x1b8 [ 208.403382][ T6657] vfs_get_tree+0x90/0x278 [ 208.404229][ T6657] do_new_mount+0x228/0x818 [ 208.405091][ T6657] path_mount+0x57c/0xfe8 [ 208.405928][ T6657] __arm64_sys_mount+0x488/0x5f8 [ 208.406856][ T6657] invoke_syscall+0x98/0x28c [ 208.407710][ T6657] el0_svc_common+0x13c/0x258 [ 208.408500][ T6657] do_el0_svc+0x5c/0x140 [ 208.409419][ T6657] el0_svc+0x78/0x1d4 [ 208.410258][ T6657] el0t_64_sync_handler+0xcc/0xe4 [ 208.411244][ T6657] el0t_64_sync+0x1a0/0x1a4 [ 208.413582][ T6657] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 208.416239][ T6657] gfs2: fsid=}: error -17 adding sysfs files [ 208.587254][ T6660] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 208.588492][ T6660] CPU: 1 PID: 6660 Comm: syz.1.558 Not tainted syzkaller #0 [ 208.589779][ T6660] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 208.591553][ T6660] Call trace: [ 208.592152][ T6660] dump_backtrace+0x0/0x458 [ 208.593109][ T6660] show_stack+0x2c/0x3c [ 208.593951][ T6660] __dump_stack+0x30/0x40 [ 208.594794][ T6660] dump_stack_lvl+0xf4/0x15c [ 208.595653][ T6660] dump_stack+0x1c/0x5c [ 208.596501][ T6660] sysfs_create_dir_ns+0x244/0x264 [ 208.597493][ T6660] kobject_add_internal+0x594/0xc2c [ 208.598544][ T6660] kobject_init_and_add+0x128/0x194 [ 208.599549][ T6660] gfs2_sys_fs_add+0x208/0x428 [ 208.600497][ T6660] gfs2_fill_super+0xe20/0x1a9c [ 208.601409][ T6660] get_tree_bdev+0x35c/0x54c [ 208.602306][ T6660] gfs2_get_tree+0x58/0x1b8 [ 208.603168][ T6660] vfs_get_tree+0x90/0x278 [ 208.604011][ T6660] do_new_mount+0x228/0x818 [ 208.604869][ T6660] path_mount+0x57c/0xfe8 [ 208.605680][ T6660] __arm64_sys_mount+0x488/0x5f8 [ 208.606577][ T6660] invoke_syscall+0x98/0x28c [ 208.607436][ T6660] el0_svc_common+0x13c/0x258 [ 208.608314][ T6660] do_el0_svc+0x5c/0x140 [ 208.609118][ T6660] el0_svc+0x78/0x1d4 [ 208.609857][ T6660] el0t_64_sync_handler+0xcc/0xe4 [ 208.610798][ T6660] el0t_64_sync+0x1a0/0x1a4 [ 208.611998][ T6660] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 208.614198][ T6660] gfs2: fsid=}: error -17 adding sysfs files [ 208.790039][ T6663] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 208.791387][ T6663] CPU: 1 PID: 6663 Comm: syz.1.559 Not tainted syzkaller #0 [ 208.792768][ T6663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 208.794515][ T6663] Call trace: [ 208.795057][ T6663] dump_backtrace+0x0/0x458 [ 208.795814][ T6663] show_stack+0x2c/0x3c [ 208.796578][ T6663] __dump_stack+0x30/0x40 [ 208.797463][ T6663] dump_stack_lvl+0xf4/0x15c [ 208.798386][ T6663] dump_stack+0x1c/0x5c [ 208.799231][ T6663] sysfs_create_dir_ns+0x244/0x264 [ 208.800315][ T6663] kobject_add_internal+0x594/0xc2c [ 208.801425][ T6663] kobject_init_and_add+0x128/0x194 [ 208.802374][ T6663] gfs2_sys_fs_add+0x208/0x428 [ 208.803224][ T6663] gfs2_fill_super+0xe20/0x1a9c [ 208.804145][ T6663] get_tree_bdev+0x35c/0x54c [ 208.805131][ T6663] gfs2_get_tree+0x58/0x1b8 [ 208.806105][ T6663] vfs_get_tree+0x90/0x278 [ 208.806996][ T6663] do_new_mount+0x228/0x818 [ 208.807977][ T6663] path_mount+0x57c/0xfe8 [ 208.808882][ T6663] __arm64_sys_mount+0x488/0x5f8 [ 208.809899][ T6663] invoke_syscall+0x98/0x28c [ 208.810862][ T6663] el0_svc_common+0x13c/0x258 [ 208.811792][ T6663] do_el0_svc+0x5c/0x140 [ 208.812729][ T6663] el0_svc+0x78/0x1d4 [ 208.813669][ T6663] el0t_64_sync_handler+0xcc/0xe4 [ 208.814782][ T6663] el0t_64_sync+0x1a0/0x1a4 [ 208.815897][ T6663] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 208.818530][ T6663] gfs2: fsid=}: error -17 adding sysfs files [ 208.961327][ T6666] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 208.962672][ T6666] CPU: 0 PID: 6666 Comm: syz.1.560 Not tainted syzkaller #0 [ 208.964029][ T6666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 208.965930][ T6666] Call trace: [ 208.966660][ T6666] dump_backtrace+0x0/0x458 [ 208.967563][ T6666] show_stack+0x2c/0x3c [ 208.968398][ T6666] __dump_stack+0x30/0x40 [ 208.969202][ T6666] dump_stack_lvl+0xf4/0x15c [ 208.970168][ T6666] dump_stack+0x1c/0x5c [ 208.970940][ T6666] sysfs_create_dir_ns+0x244/0x264 [ 208.971927][ T6666] kobject_add_internal+0x594/0xc2c [ 208.972936][ T6666] kobject_init_and_add+0x128/0x194 [ 208.973971][ T6666] gfs2_sys_fs_add+0x208/0x428 [ 208.974910][ T6666] gfs2_fill_super+0xe20/0x1a9c [ 208.975854][ T6666] get_tree_bdev+0x35c/0x54c [ 208.976776][ T6666] gfs2_get_tree+0x58/0x1b8 [ 208.977685][ T6666] vfs_get_tree+0x90/0x278 [ 208.978551][ T6666] do_new_mount+0x228/0x818 [ 208.979426][ T6666] path_mount+0x57c/0xfe8 [ 208.980277][ T6666] __arm64_sys_mount+0x488/0x5f8 [ 208.981355][ T6666] invoke_syscall+0x98/0x28c [ 208.982261][ T6666] el0_svc_common+0x13c/0x258 [ 208.983200][ T6666] do_el0_svc+0x5c/0x140 [ 208.984046][ T6666] el0_svc+0x78/0x1d4 [ 208.984851][ T6666] el0t_64_sync_handler+0xcc/0xe4 [ 208.985995][ T6666] el0t_64_sync+0x1a0/0x1a4 [ 208.988455][ T6666] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 208.990798][ T6666] gfs2: fsid=}: error -17 adding sysfs files [ 209.171747][ T6669] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 209.173241][ T6669] CPU: 1 PID: 6669 Comm: syz.1.561 Not tainted syzkaller #0 [ 209.174669][ T6669] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 209.176576][ T6669] Call trace: [ 209.177256][ T6669] dump_backtrace+0x0/0x458 [ 209.178199][ T6669] show_stack+0x2c/0x3c [ 209.179051][ T6669] __dump_stack+0x30/0x40 [ 209.179981][ T6669] dump_stack_lvl+0xf4/0x15c [ 209.180949][ T6669] dump_stack+0x1c/0x5c [ 209.181801][ T6669] sysfs_create_dir_ns+0x244/0x264 [ 209.182876][ T6669] kobject_add_internal+0x594/0xc2c [ 209.183872][ T6669] kobject_init_and_add+0x128/0x194 [ 209.184915][ T6669] gfs2_sys_fs_add+0x208/0x428 [ 209.185947][ T6669] gfs2_fill_super+0xe20/0x1a9c [ 209.187033][ T6669] get_tree_bdev+0x35c/0x54c [ 209.188014][ T6669] gfs2_get_tree+0x58/0x1b8 [ 209.188911][ T6669] vfs_get_tree+0x90/0x278 [ 209.189844][ T6669] do_new_mount+0x228/0x818 [ 209.190781][ T6669] path_mount+0x57c/0xfe8 [ 209.191681][ T6669] __arm64_sys_mount+0x488/0x5f8 [ 209.192740][ T6669] invoke_syscall+0x98/0x28c [ 209.193737][ T6669] el0_svc_common+0x13c/0x258 [ 209.194742][ T6669] do_el0_svc+0x5c/0x140 [ 209.195679][ T6669] el0_svc+0x78/0x1d4 [ 209.196561][ T6669] el0t_64_sync_handler+0xcc/0xe4 [ 209.197673][ T6669] el0t_64_sync+0x1a0/0x1a4 [ 209.198765][ T6669] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 209.200878][ T6669] gfs2: fsid=}: error -17 adding sysfs files [ 209.417142][ T6672] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 209.418687][ T6672] CPU: 1 PID: 6672 Comm: syz.1.562 Not tainted syzkaller #0 [ 209.420157][ T6672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 209.422010][ T6672] Call trace: [ 209.422659][ T6672] dump_backtrace+0x0/0x458 [ 209.423472][ T6672] show_stack+0x2c/0x3c [ 209.424256][ T6672] __dump_stack+0x30/0x40 [ 209.425066][ T6672] dump_stack_lvl+0xf4/0x15c [ 209.425954][ T6672] dump_stack+0x1c/0x5c [ 209.426841][ T6672] sysfs_create_dir_ns+0x244/0x264 [ 209.427844][ T6672] kobject_add_internal+0x594/0xc2c [ 209.428897][ T6672] kobject_init_and_add+0x128/0x194 [ 209.429943][ T6672] gfs2_sys_fs_add+0x208/0x428 [ 209.430851][ T6672] gfs2_fill_super+0xe20/0x1a9c [ 209.431857][ T6672] get_tree_bdev+0x35c/0x54c [ 209.432784][ T6672] gfs2_get_tree+0x58/0x1b8 [ 209.433719][ T6672] vfs_get_tree+0x90/0x278 [ 209.434612][ T6672] do_new_mount+0x228/0x818 [ 209.435467][ T6672] path_mount+0x57c/0xfe8 [ 209.436303][ T6672] __arm64_sys_mount+0x488/0x5f8 [ 209.437212][ T6672] invoke_syscall+0x98/0x28c [ 209.438095][ T6672] el0_svc_common+0x13c/0x258 [ 209.439126][ T6672] do_el0_svc+0x5c/0x140 [ 209.440036][ T6672] el0_svc+0x78/0x1d4 [ 209.440866][ T6672] el0t_64_sync_handler+0xcc/0xe4 [ 209.441965][ T6672] el0t_64_sync+0x1a0/0x1a4 [ 209.444546][ T6672] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 209.446747][ T6672] gfs2: fsid=}: error -17 adding sysfs files [ 209.665336][ T6675] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 209.667586][ T6675] CPU: 1 PID: 6675 Comm: syz.1.563 Not tainted syzkaller #0 [ 209.668897][ T6675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 209.670682][ T6675] Call trace: [ 209.671278][ T6675] dump_backtrace+0x0/0x458 [ 209.672108][ T6675] show_stack+0x2c/0x3c [ 209.672879][ T6675] __dump_stack+0x30/0x40 [ 209.673650][ T6675] dump_stack_lvl+0xf4/0x15c [ 209.674491][ T6675] dump_stack+0x1c/0x5c [ 209.675281][ T6675] sysfs_create_dir_ns+0x244/0x264 [ 209.676248][ T6675] kobject_add_internal+0x594/0xc2c [ 209.677290][ T6675] kobject_init_and_add+0x128/0x194 [ 209.678339][ T6675] gfs2_sys_fs_add+0x208/0x428 [ 209.679315][ T6675] gfs2_fill_super+0xe20/0x1a9c [ 209.680264][ T6675] get_tree_bdev+0x35c/0x54c [ 209.681212][ T6675] gfs2_get_tree+0x58/0x1b8 [ 209.682169][ T6675] vfs_get_tree+0x90/0x278 [ 209.683096][ T6675] do_new_mount+0x228/0x818 [ 209.684066][ T6675] path_mount+0x57c/0xfe8 [ 209.684909][ T6675] __arm64_sys_mount+0x488/0x5f8 [ 209.685976][ T6675] invoke_syscall+0x98/0x28c [ 209.686915][ T6675] el0_svc_common+0x13c/0x258 [ 209.687925][ T6675] do_el0_svc+0x5c/0x140 [ 209.688811][ T6675] el0_svc+0x78/0x1d4 [ 209.689622][ T6675] el0t_64_sync_handler+0xcc/0xe4 [ 209.690702][ T6675] el0t_64_sync+0x1a0/0x1a4 [ 209.693048][ T6675] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 209.695331][ T6675] gfs2: fsid=}: error -17 adding sysfs files [ 209.922242][ T6678] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 209.923549][ T6678] CPU: 0 PID: 6678 Comm: syz.1.564 Not tainted syzkaller #0 [ 209.924952][ T6678] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 209.926852][ T6678] Call trace: [ 209.927515][ T6678] dump_backtrace+0x0/0x458 [ 209.928439][ T6678] show_stack+0x2c/0x3c [ 209.929327][ T6678] __dump_stack+0x30/0x40 [ 209.930198][ T6678] dump_stack_lvl+0xf4/0x15c [ 209.931124][ T6678] dump_stack+0x1c/0x5c [ 209.931996][ T6678] sysfs_create_dir_ns+0x244/0x264 [ 209.932999][ T6678] kobject_add_internal+0x594/0xc2c [ 209.934032][ T6678] kobject_init_and_add+0x128/0x194 [ 209.935141][ T6678] gfs2_sys_fs_add+0x208/0x428 [ 209.936102][ T6678] gfs2_fill_super+0xe20/0x1a9c [ 209.937064][ T6678] get_tree_bdev+0x35c/0x54c [ 209.938091][ T6678] gfs2_get_tree+0x58/0x1b8 [ 209.939008][ T6678] vfs_get_tree+0x90/0x278 [ 209.939870][ T6678] do_new_mount+0x228/0x818 [ 209.940789][ T6678] path_mount+0x57c/0xfe8 [ 209.941761][ T6678] __arm64_sys_mount+0x488/0x5f8 [ 209.942842][ T6678] invoke_syscall+0x98/0x28c [ 209.943816][ T6678] el0_svc_common+0x13c/0x258 [ 209.944851][ T6678] do_el0_svc+0x5c/0x140 [ 209.945647][ T6678] el0_svc+0x78/0x1d4 [ 209.946422][ T6678] el0t_64_sync_handler+0xcc/0xe4 [ 209.947490][ T6678] el0t_64_sync+0x1a0/0x1a4 [ 209.948845][ T6678] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 209.951494][ T6678] gfs2: fsid=}: error -17 adding sysfs files [ 210.158257][ T6681] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 210.159506][ T6681] CPU: 1 PID: 6681 Comm: syz.1.565 Not tainted syzkaller #0 [ 210.160777][ T6681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 210.162494][ T6681] Call trace: [ 210.163060][ T6681] dump_backtrace+0x0/0x458 [ 210.163893][ T6681] show_stack+0x2c/0x3c [ 210.164594][ T6681] __dump_stack+0x30/0x40 [ 210.165338][ T6681] dump_stack_lvl+0xf4/0x15c [ 210.166162][ T6681] dump_stack+0x1c/0x5c [ 210.166962][ T6681] sysfs_create_dir_ns+0x244/0x264 [ 210.167930][ T6681] kobject_add_internal+0x594/0xc2c [ 210.168834][ T6681] kobject_init_and_add+0x128/0x194 [ 210.169835][ T6681] gfs2_sys_fs_add+0x208/0x428 [ 210.170758][ T6681] gfs2_fill_super+0xe20/0x1a9c [ 210.171663][ T6681] get_tree_bdev+0x35c/0x54c [ 210.172506][ T6681] gfs2_get_tree+0x58/0x1b8 [ 210.173351][ T6681] vfs_get_tree+0x90/0x278 [ 210.174156][ T6681] do_new_mount+0x228/0x818 [ 210.174994][ T6681] path_mount+0x57c/0xfe8 [ 210.175796][ T6681] __arm64_sys_mount+0x488/0x5f8 [ 210.176729][ T6681] invoke_syscall+0x98/0x28c [ 210.177619][ T6681] el0_svc_common+0x13c/0x258 [ 210.178493][ T6681] do_el0_svc+0x5c/0x140 [ 210.179293][ T6681] el0_svc+0x78/0x1d4 [ 210.180030][ T6681] el0t_64_sync_handler+0xcc/0xe4 [ 210.180979][ T6681] el0t_64_sync+0x1a0/0x1a4 [ 210.183230][ T6681] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 210.185576][ T6681] gfs2: fsid=}: error -17 adding sysfs files [ 210.328452][ T6684] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 210.329763][ T6684] CPU: 0 PID: 6684 Comm: syz.1.566 Not tainted syzkaller #0 [ 210.331109][ T6684] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 210.333298][ T6684] Call trace: [ 210.333988][ T6684] dump_backtrace+0x0/0x458 [ 210.334973][ T6684] show_stack+0x2c/0x3c [ 210.335872][ T6684] __dump_stack+0x30/0x40 [ 210.336890][ T6684] dump_stack_lvl+0xf4/0x15c [ 210.337946][ T6684] dump_stack+0x1c/0x5c [ 210.338904][ T6684] sysfs_create_dir_ns+0x244/0x264 [ 210.340022][ T6684] kobject_add_internal+0x594/0xc2c [ 210.341097][ T6684] kobject_init_and_add+0x128/0x194 [ 210.342151][ T6684] gfs2_sys_fs_add+0x208/0x428 [ 210.343087][ T6684] gfs2_fill_super+0xe20/0x1a9c [ 210.344027][ T6684] get_tree_bdev+0x35c/0x54c [ 210.344904][ T6684] gfs2_get_tree+0x58/0x1b8 [ 210.345814][ T6684] vfs_get_tree+0x90/0x278 [ 210.346678][ T6684] do_new_mount+0x228/0x818 [ 210.347561][ T6684] path_mount+0x57c/0xfe8 [ 210.348391][ T6684] __arm64_sys_mount+0x488/0x5f8 [ 210.349433][ T6684] invoke_syscall+0x98/0x28c [ 210.350396][ T6684] el0_svc_common+0x13c/0x258 [ 210.351371][ T6684] do_el0_svc+0x5c/0x140 [ 210.352291][ T6684] el0_svc+0x78/0x1d4 [ 210.353102][ T6684] el0t_64_sync_handler+0xcc/0xe4 [ 210.354175][ T6684] el0t_64_sync+0x1a0/0x1a4 [ 210.357379][ T6684] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 210.359619][ T6684] gfs2: fsid=}: error -17 adding sysfs files [ 210.561756][ T6687] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 210.563235][ T6687] CPU: 0 PID: 6687 Comm: syz.1.567 Not tainted syzkaller #0 [ 210.564839][ T6687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 210.567044][ T6687] Call trace: [ 210.567731][ T6687] dump_backtrace+0x0/0x458 [ 210.568684][ T6687] show_stack+0x2c/0x3c [ 210.569570][ T6687] __dump_stack+0x30/0x40 [ 210.570450][ T6687] dump_stack_lvl+0xf4/0x15c [ 210.571341][ T6687] dump_stack+0x1c/0x5c [ 210.572155][ T6687] sysfs_create_dir_ns+0x244/0x264 [ 210.573084][ T6687] kobject_add_internal+0x594/0xc2c [ 210.574136][ T6687] kobject_init_and_add+0x128/0x194 [ 210.575218][ T6687] gfs2_sys_fs_add+0x208/0x428 [ 210.576211][ T6687] gfs2_fill_super+0xe20/0x1a9c [ 210.577246][ T6687] get_tree_bdev+0x35c/0x54c [ 210.578189][ T6687] gfs2_get_tree+0x58/0x1b8 [ 210.579146][ T6687] vfs_get_tree+0x90/0x278 [ 210.580020][ T6687] do_new_mount+0x228/0x818 [ 210.580975][ T6687] path_mount+0x57c/0xfe8 [ 210.581896][ T6687] __arm64_sys_mount+0x488/0x5f8 [ 210.582873][ T6687] invoke_syscall+0x98/0x28c [ 210.583880][ T6687] el0_svc_common+0x13c/0x258 [ 210.584807][ T6687] do_el0_svc+0x5c/0x140 [ 210.585664][ T6687] el0_svc+0x78/0x1d4 [ 210.586453][ T6687] el0t_64_sync_handler+0xcc/0xe4 [ 210.587443][ T6687] el0t_64_sync+0x1a0/0x1a4 [ 210.589228][ T6687] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 210.591919][ T6687] gfs2: fsid=}: error -17 adding sysfs files [ 210.807256][ T6690] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 210.808736][ T6690] CPU: 1 PID: 6690 Comm: syz.1.568 Not tainted syzkaller #0 [ 210.810063][ T6690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 210.811871][ T6690] Call trace: [ 210.812461][ T6690] dump_backtrace+0x0/0x458 [ 210.813272][ T6690] show_stack+0x2c/0x3c [ 210.814030][ T6690] __dump_stack+0x30/0x40 [ 210.814827][ T6690] dump_stack_lvl+0xf4/0x15c [ 210.815627][ T6690] dump_stack+0x1c/0x5c [ 210.816383][ T6690] sysfs_create_dir_ns+0x244/0x264 [ 210.817362][ T6690] kobject_add_internal+0x594/0xc2c [ 210.818318][ T6690] kobject_init_and_add+0x128/0x194 [ 210.819282][ T6690] gfs2_sys_fs_add+0x208/0x428 [ 210.820174][ T6690] gfs2_fill_super+0xe20/0x1a9c [ 210.821043][ T6690] get_tree_bdev+0x35c/0x54c [ 210.821862][ T6690] gfs2_get_tree+0x58/0x1b8 [ 210.822674][ T6690] vfs_get_tree+0x90/0x278 [ 210.823518][ T6690] do_new_mount+0x228/0x818 [ 210.824322][ T6690] path_mount+0x57c/0xfe8 [ 210.825141][ T6690] __arm64_sys_mount+0x488/0x5f8 [ 210.826030][ T6690] invoke_syscall+0x98/0x28c [ 210.826905][ T6690] el0_svc_common+0x13c/0x258 [ 210.827781][ T6690] do_el0_svc+0x5c/0x140 [ 210.828564][ T6690] el0_svc+0x78/0x1d4 [ 210.829283][ T6690] el0t_64_sync_handler+0xcc/0xe4 [ 210.830211][ T6690] el0t_64_sync+0x1a0/0x1a4 [ 210.832694][ T6690] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 210.835555][ T6690] gfs2: fsid=}: error -17 adding sysfs files 1970/01/01 00:03:30 executed programs: 555 [ 211.010158][ T6693] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 211.011353][ T6693] CPU: 1 PID: 6693 Comm: syz.1.569 Not tainted syzkaller #0 [ 211.012798][ T6693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 211.014780][ T6693] Call trace: [ 211.015421][ T6693] dump_backtrace+0x0/0x458 [ 211.016347][ T6693] show_stack+0x2c/0x3c [ 211.017220][ T6693] __dump_stack+0x30/0x40 [ 211.018155][ T6693] dump_stack_lvl+0xf4/0x15c [ 211.019114][ T6693] dump_stack+0x1c/0x5c [ 211.019901][ T6693] sysfs_create_dir_ns+0x244/0x264 [ 211.020873][ T6693] kobject_add_internal+0x594/0xc2c [ 211.021877][ T6693] kobject_init_and_add+0x128/0x194 [ 211.022927][ T6693] gfs2_sys_fs_add+0x208/0x428 [ 211.023954][ T6693] gfs2_fill_super+0xe20/0x1a9c [ 211.024960][ T6693] get_tree_bdev+0x35c/0x54c [ 211.025882][ T6693] gfs2_get_tree+0x58/0x1b8 [ 211.026854][ T6693] vfs_get_tree+0x90/0x278 [ 211.027794][ T6693] do_new_mount+0x228/0x818 [ 211.028684][ T6693] path_mount+0x57c/0xfe8 [ 211.029570][ T6693] __arm64_sys_mount+0x488/0x5f8 [ 211.030635][ T6693] invoke_syscall+0x98/0x28c [ 211.031590][ T6693] el0_svc_common+0x13c/0x258 [ 211.032539][ T6693] do_el0_svc+0x5c/0x140 [ 211.033369][ T6693] el0_svc+0x78/0x1d4 [ 211.034159][ T6693] el0t_64_sync_handler+0xcc/0xe4 [ 211.035043][ T6693] el0t_64_sync+0x1a0/0x1a4 [ 211.037365][ T6693] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 211.039834][ T6693] gfs2: fsid=}: error -17 adding sysfs files [ 211.287213][ T6696] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 211.288629][ T6696] CPU: 0 PID: 6696 Comm: syz.1.570 Not tainted syzkaller #0 [ 211.290053][ T6696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 211.291985][ T6696] Call trace: [ 211.292646][ T6696] dump_backtrace+0x0/0x458 [ 211.293458][ T6696] show_stack+0x2c/0x3c [ 211.294232][ T6696] __dump_stack+0x30/0x40 [ 211.295073][ T6696] dump_stack_lvl+0xf4/0x15c [ 211.296009][ T6696] dump_stack+0x1c/0x5c [ 211.296930][ T6696] sysfs_create_dir_ns+0x244/0x264 [ 211.297984][ T6696] kobject_add_internal+0x594/0xc2c [ 211.299044][ T6696] kobject_init_and_add+0x128/0x194 [ 211.300088][ T6696] gfs2_sys_fs_add+0x208/0x428 [ 211.301138][ T6696] gfs2_fill_super+0xe20/0x1a9c [ 211.302068][ T6696] get_tree_bdev+0x35c/0x54c [ 211.303013][ T6696] gfs2_get_tree+0x58/0x1b8 [ 211.303947][ T6696] vfs_get_tree+0x90/0x278 [ 211.304860][ T6696] do_new_mount+0x228/0x818 [ 211.305807][ T6696] path_mount+0x57c/0xfe8 [ 211.306645][ T6696] __arm64_sys_mount+0x488/0x5f8 [ 211.307686][ T6696] invoke_syscall+0x98/0x28c [ 211.308615][ T6696] el0_svc_common+0x13c/0x258 [ 211.309610][ T6696] do_el0_svc+0x5c/0x140 [ 211.310525][ T6696] el0_svc+0x78/0x1d4 [ 211.311304][ T6696] el0t_64_sync_handler+0xcc/0xe4 [ 211.312263][ T6696] el0t_64_sync+0x1a0/0x1a4 [ 211.313239][ T6696] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 211.315382][ T6696] gfs2: fsid=}: error -17 adding sysfs files [ 211.445128][ T6699] set_capacity_and_notify: 13 callbacks suppressed [ 211.445139][ T6699] loop1: detected capacity change from 0 to 32768 [ 211.487248][ T6699] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 211.488709][ T6699] CPU: 1 PID: 6699 Comm: syz.1.571 Not tainted syzkaller #0 [ 211.490149][ T6699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 211.491973][ T6699] Call trace: [ 211.492587][ T6699] dump_backtrace+0x0/0x458 [ 211.493319][ T6699] show_stack+0x2c/0x3c [ 211.494094][ T6699] __dump_stack+0x30/0x40 [ 211.494908][ T6699] dump_stack_lvl+0xf4/0x15c [ 211.495834][ T6699] dump_stack+0x1c/0x5c [ 211.496698][ T6699] sysfs_create_dir_ns+0x244/0x264 [ 211.497828][ T6699] kobject_add_internal+0x594/0xc2c [ 211.498939][ T6699] kobject_init_and_add+0x128/0x194 [ 211.500039][ T6699] gfs2_sys_fs_add+0x208/0x428 [ 211.501100][ T6699] gfs2_fill_super+0xe20/0x1a9c [ 211.502158][ T6699] get_tree_bdev+0x35c/0x54c [ 211.503088][ T6699] gfs2_get_tree+0x58/0x1b8 [ 211.503997][ T6699] vfs_get_tree+0x90/0x278 [ 211.504939][ T6699] do_new_mount+0x228/0x818 [ 211.505921][ T6699] path_mount+0x57c/0xfe8 [ 211.506894][ T6699] __arm64_sys_mount+0x488/0x5f8 [ 211.507893][ T6699] invoke_syscall+0x98/0x28c [ 211.508800][ T6699] el0_svc_common+0x13c/0x258 [ 211.509758][ T6699] do_el0_svc+0x5c/0x140 [ 211.510523][ T6699] el0_svc+0x78/0x1d4 [ 211.511330][ T6699] el0t_64_sync_handler+0xcc/0xe4 [ 211.512431][ T6699] el0t_64_sync+0x1a0/0x1a4 [ 211.514128][ T6699] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 211.516808][ T6699] gfs2: fsid=}: error -17 adding sysfs files [ 211.650694][ T6702] loop1: detected capacity change from 0 to 32768 [ 211.659221][ T6702] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 211.660566][ T6702] CPU: 1 PID: 6702 Comm: syz.1.572 Not tainted syzkaller #0 [ 211.661835][ T6702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 211.663623][ T6702] Call trace: [ 211.664212][ T6702] dump_backtrace+0x0/0x458 [ 211.665055][ T6702] show_stack+0x2c/0x3c [ 211.665838][ T6702] __dump_stack+0x30/0x40 [ 211.666725][ T6702] dump_stack_lvl+0xf4/0x15c [ 211.667657][ T6702] dump_stack+0x1c/0x5c [ 211.668505][ T6702] sysfs_create_dir_ns+0x244/0x264 [ 211.669462][ T6702] kobject_add_internal+0x594/0xc2c [ 211.670534][ T6702] kobject_init_and_add+0x128/0x194 [ 211.671596][ T6702] gfs2_sys_fs_add+0x208/0x428 [ 211.672563][ T6702] gfs2_fill_super+0xe20/0x1a9c [ 211.673507][ T6702] get_tree_bdev+0x35c/0x54c [ 211.674338][ T6702] gfs2_get_tree+0x58/0x1b8 [ 211.675202][ T6702] vfs_get_tree+0x90/0x278 [ 211.676002][ T6702] do_new_mount+0x228/0x818 [ 211.676835][ T6702] path_mount+0x57c/0xfe8 [ 211.677603][ T6702] __arm64_sys_mount+0x488/0x5f8 [ 211.678623][ T6702] invoke_syscall+0x98/0x28c [ 211.679484][ T6702] el0_svc_common+0x13c/0x258 [ 211.680382][ T6702] do_el0_svc+0x5c/0x140 [ 211.681182][ T6702] el0_svc+0x78/0x1d4 [ 211.681977][ T6702] el0t_64_sync_handler+0xcc/0xe4 [ 211.683006][ T6702] el0t_64_sync+0x1a0/0x1a4 [ 211.686422][ T6702] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 211.689323][ T6702] gfs2: fsid=}: error -17 adding sysfs files [ 211.821228][ T6705] loop1: detected capacity change from 0 to 32768 [ 211.828687][ T6705] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 211.830187][ T6705] CPU: 0 PID: 6705 Comm: syz.1.573 Not tainted syzkaller #0 [ 211.831653][ T6705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 211.833593][ T6705] Call trace: [ 211.834163][ T6705] dump_backtrace+0x0/0x458 [ 211.835009][ T6705] show_stack+0x2c/0x3c [ 211.835791][ T6705] __dump_stack+0x30/0x40 [ 211.836701][ T6705] dump_stack_lvl+0xf4/0x15c [ 211.837550][ T6705] dump_stack+0x1c/0x5c [ 211.838353][ T6705] sysfs_create_dir_ns+0x244/0x264 [ 211.839317][ T6705] kobject_add_internal+0x594/0xc2c [ 211.840330][ T6705] kobject_init_and_add+0x128/0x194 [ 211.841515][ T6705] gfs2_sys_fs_add+0x208/0x428 [ 211.842400][ T6705] gfs2_fill_super+0xe20/0x1a9c [ 211.843356][ T6705] get_tree_bdev+0x35c/0x54c [ 211.844206][ T6705] gfs2_get_tree+0x58/0x1b8 [ 211.845043][ T6705] vfs_get_tree+0x90/0x278 [ 211.845957][ T6705] do_new_mount+0x228/0x818 [ 211.846783][ T6705] path_mount+0x57c/0xfe8 [ 211.847590][ T6705] __arm64_sys_mount+0x488/0x5f8 [ 211.848535][ T6705] invoke_syscall+0x98/0x28c [ 211.849412][ T6705] el0_svc_common+0x13c/0x258 [ 211.850317][ T6705] do_el0_svc+0x5c/0x140 [ 211.851221][ T6705] el0_svc+0x78/0x1d4 [ 211.852082][ T6705] el0t_64_sync_handler+0xcc/0xe4 [ 211.853102][ T6705] el0t_64_sync+0x1a0/0x1a4 [ 211.855357][ T6705] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 211.857982][ T6705] gfs2: fsid=}: error -17 adding sysfs files [ 212.005591][ T6708] loop1: detected capacity change from 0 to 32768 [ 212.061758][ T6708] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 212.063347][ T6708] CPU: 0 PID: 6708 Comm: syz.1.574 Not tainted syzkaller #0 [ 212.064818][ T6708] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 212.066757][ T6708] Call trace: [ 212.067390][ T6708] dump_backtrace+0x0/0x458 [ 212.068327][ T6708] show_stack+0x2c/0x3c [ 212.069223][ T6708] __dump_stack+0x30/0x40 [ 212.070104][ T6708] dump_stack_lvl+0xf4/0x15c [ 212.071013][ T6708] dump_stack+0x1c/0x5c [ 212.071872][ T6708] sysfs_create_dir_ns+0x244/0x264 [ 212.072938][ T6708] kobject_add_internal+0x594/0xc2c [ 212.074063][ T6708] kobject_init_and_add+0x128/0x194 [ 212.075186][ T6708] gfs2_sys_fs_add+0x208/0x428 [ 212.076258][ T6708] gfs2_fill_super+0xe20/0x1a9c [ 212.077329][ T6708] get_tree_bdev+0x35c/0x54c [ 212.078335][ T6708] gfs2_get_tree+0x58/0x1b8 [ 212.079340][ T6708] vfs_get_tree+0x90/0x278 [ 212.080355][ T6708] do_new_mount+0x228/0x818 [ 212.081193][ T6708] path_mount+0x57c/0xfe8 [ 212.082007][ T6708] __arm64_sys_mount+0x488/0x5f8 [ 212.082945][ T6708] invoke_syscall+0x98/0x28c [ 212.083846][ T6708] el0_svc_common+0x13c/0x258 [ 212.084702][ T6708] do_el0_svc+0x5c/0x140 [ 212.085512][ T6708] el0_svc+0x78/0x1d4 [ 212.086292][ T6708] el0t_64_sync_handler+0xcc/0xe4 [ 212.087245][ T6708] el0t_64_sync+0x1a0/0x1a4 [ 212.089559][ T6708] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 212.091857][ T6708] gfs2: fsid=}: error -17 adding sysfs files [ 212.287255][ T6711] loop1: detected capacity change from 0 to 32768 [ 212.345735][ T6711] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 212.348986][ T6711] CPU: 1 PID: 6711 Comm: syz.1.575 Not tainted syzkaller #0 [ 212.350366][ T6711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 212.352129][ T6711] Call trace: [ 212.352706][ T6711] dump_backtrace+0x0/0x458 [ 212.353493][ T6711] show_stack+0x2c/0x3c [ 212.354168][ T6711] __dump_stack+0x30/0x40 [ 212.354903][ T6711] dump_stack_lvl+0xf4/0x15c [ 212.355743][ T6711] dump_stack+0x1c/0x5c [ 212.356567][ T6711] sysfs_create_dir_ns+0x244/0x264 [ 212.357552][ T6711] kobject_add_internal+0x594/0xc2c [ 212.358550][ T6711] kobject_init_and_add+0x128/0x194 [ 212.359541][ T6711] gfs2_sys_fs_add+0x208/0x428 [ 212.360563][ T6711] gfs2_fill_super+0xe20/0x1a9c [ 212.361567][ T6711] get_tree_bdev+0x35c/0x54c [ 212.362492][ T6711] gfs2_get_tree+0x58/0x1b8 [ 212.363442][ T6711] vfs_get_tree+0x90/0x278 [ 212.364292][ T6711] do_new_mount+0x228/0x818 [ 212.365163][ T6711] path_mount+0x57c/0xfe8 [ 212.366017][ T6711] __arm64_sys_mount+0x488/0x5f8 [ 212.366977][ T6711] invoke_syscall+0x98/0x28c [ 212.367907][ T6711] el0_svc_common+0x13c/0x258 [ 212.368821][ T6711] do_el0_svc+0x5c/0x140 [ 212.369630][ T6711] el0_svc+0x78/0x1d4 [ 212.370292][ T6711] el0t_64_sync_handler+0xcc/0xe4 [ 212.371225][ T6711] el0t_64_sync+0x1a0/0x1a4 [ 212.373637][ T6711] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 212.376196][ T6711] gfs2: fsid=}: error -17 adding sysfs files [ 212.541221][ T6714] loop1: detected capacity change from 0 to 32768 [ 212.587285][ T6714] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 212.588718][ T6714] CPU: 1 PID: 6714 Comm: syz.1.576 Not tainted syzkaller #0 [ 212.590099][ T6714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 212.592019][ T6714] Call trace: [ 212.592725][ T6714] dump_backtrace+0x0/0x458 [ 212.593578][ T6714] show_stack+0x2c/0x3c [ 212.594444][ T6714] __dump_stack+0x30/0x40 [ 212.595378][ T6714] dump_stack_lvl+0xf4/0x15c [ 212.596381][ T6714] dump_stack+0x1c/0x5c [ 212.597248][ T6714] sysfs_create_dir_ns+0x244/0x264 [ 212.598262][ T6714] kobject_add_internal+0x594/0xc2c [ 212.599338][ T6714] kobject_init_and_add+0x128/0x194 [ 212.600442][ T6714] gfs2_sys_fs_add+0x208/0x428 [ 212.601463][ T6714] gfs2_fill_super+0xe20/0x1a9c [ 212.602459][ T6714] get_tree_bdev+0x35c/0x54c [ 212.603403][ T6714] gfs2_get_tree+0x58/0x1b8 [ 212.604261][ T6714] vfs_get_tree+0x90/0x278 [ 212.605141][ T6714] do_new_mount+0x228/0x818 [ 212.606071][ T6714] path_mount+0x57c/0xfe8 [ 212.606978][ T6714] __arm64_sys_mount+0x488/0x5f8 [ 212.608020][ T6714] invoke_syscall+0x98/0x28c [ 212.608995][ T6714] el0_svc_common+0x13c/0x258 [ 212.609944][ T6714] do_el0_svc+0x5c/0x140 [ 212.610850][ T6714] el0_svc+0x78/0x1d4 [ 212.611697][ T6714] el0t_64_sync_handler+0xcc/0xe4 [ 212.612749][ T6714] el0t_64_sync+0x1a0/0x1a4 [ 212.615233][ T6714] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 212.617918][ T6714] gfs2: fsid=}: error -17 adding sysfs files [ 212.753132][ T6717] loop1: detected capacity change from 0 to 32768 [ 212.800773][ T6717] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 212.802276][ T6717] CPU: 1 PID: 6717 Comm: syz.1.577 Not tainted syzkaller #0 [ 212.803696][ T6717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 212.805436][ T6717] Call trace: [ 212.806056][ T6717] dump_backtrace+0x0/0x458 [ 212.806934][ T6717] show_stack+0x2c/0x3c [ 212.807748][ T6717] __dump_stack+0x30/0x40 [ 212.808644][ T6717] dump_stack_lvl+0xf4/0x15c [ 212.809639][ T6717] dump_stack+0x1c/0x5c [ 212.810515][ T6717] sysfs_create_dir_ns+0x244/0x264 [ 212.811524][ T6717] kobject_add_internal+0x594/0xc2c [ 212.812563][ T6717] kobject_init_and_add+0x128/0x194 [ 212.813626][ T6717] gfs2_sys_fs_add+0x208/0x428 [ 212.814553][ T6717] gfs2_fill_super+0xe20/0x1a9c [ 212.815459][ T6717] get_tree_bdev+0x35c/0x54c [ 212.816304][ T6717] gfs2_get_tree+0x58/0x1b8 [ 212.817144][ T6717] vfs_get_tree+0x90/0x278 [ 212.817982][ T6717] do_new_mount+0x228/0x818 [ 212.818841][ T6717] path_mount+0x57c/0xfe8 [ 212.819643][ T6717] __arm64_sys_mount+0x488/0x5f8 [ 212.820546][ T6717] invoke_syscall+0x98/0x28c [ 212.821413][ T6717] el0_svc_common+0x13c/0x258 [ 212.822305][ T6717] do_el0_svc+0x5c/0x140 [ 212.823154][ T6717] el0_svc+0x78/0x1d4 [ 212.823945][ T6717] el0t_64_sync_handler+0xcc/0xe4 [ 212.824880][ T6717] el0t_64_sync+0x1a0/0x1a4 [ 212.827301][ T6717] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 212.829772][ T6717] gfs2: fsid=}: error -17 adding sysfs files [ 212.961013][ T6720] loop1: detected capacity change from 0 to 32768 [ 213.007119][ T6720] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 213.008516][ T6720] CPU: 1 PID: 6720 Comm: syz.1.578 Not tainted syzkaller #0 [ 213.009794][ T6720] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 213.011639][ T6720] Call trace: [ 213.012288][ T6720] dump_backtrace+0x0/0x458 [ 213.013197][ T6720] show_stack+0x2c/0x3c [ 213.014053][ T6720] __dump_stack+0x30/0x40 [ 213.014862][ T6720] dump_stack_lvl+0xf4/0x15c [ 213.015684][ T6720] dump_stack+0x1c/0x5c [ 213.016486][ T6720] sysfs_create_dir_ns+0x244/0x264 [ 213.017433][ T6720] kobject_add_internal+0x594/0xc2c [ 213.018487][ T6720] kobject_init_and_add+0x128/0x194 [ 213.019546][ T6720] gfs2_sys_fs_add+0x208/0x428 [ 213.020563][ T6720] gfs2_fill_super+0xe20/0x1a9c [ 213.021494][ T6720] get_tree_bdev+0x35c/0x54c [ 213.022357][ T6720] gfs2_get_tree+0x58/0x1b8 [ 213.023135][ T6720] vfs_get_tree+0x90/0x278 [ 213.023975][ T6720] do_new_mount+0x228/0x818 [ 213.024827][ T6720] path_mount+0x57c/0xfe8 [ 213.025697][ T6720] __arm64_sys_mount+0x488/0x5f8 [ 213.026573][ T6720] invoke_syscall+0x98/0x28c [ 213.027395][ T6720] el0_svc_common+0x13c/0x258 [ 213.028262][ T6720] do_el0_svc+0x5c/0x140 [ 213.029143][ T6720] el0_svc+0x78/0x1d4 [ 213.029996][ T6720] el0t_64_sync_handler+0xcc/0xe4 [ 213.031039][ T6720] el0t_64_sync+0x1a0/0x1a4 [ 213.033613][ T6720] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 213.036333][ T6720] gfs2: fsid=}: error -17 adding sysfs files [ 213.169477][ T6723] loop1: detected capacity change from 0 to 32768 [ 213.177203][ T6723] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 213.178626][ T6723] CPU: 0 PID: 6723 Comm: syz.1.579 Not tainted syzkaller #0 [ 213.180047][ T6723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 213.181943][ T6723] Call trace: [ 213.182553][ T6723] dump_backtrace+0x0/0x458 [ 213.183376][ T6723] show_stack+0x2c/0x3c [ 213.184152][ T6723] __dump_stack+0x30/0x40 [ 213.184981][ T6723] dump_stack_lvl+0xf4/0x15c [ 213.185882][ T6723] dump_stack+0x1c/0x5c [ 213.186760][ T6723] sysfs_create_dir_ns+0x244/0x264 [ 213.187753][ T6723] kobject_add_internal+0x594/0xc2c [ 213.188784][ T6723] kobject_init_and_add+0x128/0x194 [ 213.189896][ T6723] gfs2_sys_fs_add+0x208/0x428 [ 213.190933][ T6723] gfs2_fill_super+0xe20/0x1a9c [ 213.191927][ T6723] get_tree_bdev+0x35c/0x54c [ 213.192813][ T6723] gfs2_get_tree+0x58/0x1b8 [ 213.193700][ T6723] vfs_get_tree+0x90/0x278 [ 213.194478][ T6723] do_new_mount+0x228/0x818 [ 213.195321][ T6723] path_mount+0x57c/0xfe8 [ 213.196275][ T6723] __arm64_sys_mount+0x488/0x5f8 [ 213.197245][ T6723] invoke_syscall+0x98/0x28c [ 213.198201][ T6723] el0_svc_common+0x13c/0x258 [ 213.199228][ T6723] do_el0_svc+0x5c/0x140 [ 213.200176][ T6723] el0_svc+0x78/0x1d4 [ 213.201043][ T6723] el0t_64_sync_handler+0xcc/0xe4 [ 213.202099][ T6723] el0t_64_sync+0x1a0/0x1a4 [ 213.204464][ T6723] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 213.207104][ T6723] gfs2: fsid=}: error -17 adding sysfs files [ 213.391848][ T6726] loop1: detected capacity change from 0 to 32768 [ 213.432600][ T6726] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 213.433725][ T6726] CPU: 0 PID: 6726 Comm: syz.1.580 Not tainted syzkaller #0 [ 213.435069][ T6726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 213.437051][ T6726] Call trace: [ 213.437717][ T6726] dump_backtrace+0x0/0x458 [ 213.438634][ T6726] show_stack+0x2c/0x3c [ 213.439444][ T6726] __dump_stack+0x30/0x40 [ 213.440343][ T6726] dump_stack_lvl+0xf4/0x15c [ 213.441343][ T6726] dump_stack+0x1c/0x5c [ 213.442164][ T6726] sysfs_create_dir_ns+0x244/0x264 [ 213.443245][ T6726] kobject_add_internal+0x594/0xc2c [ 213.444284][ T6726] kobject_init_and_add+0x128/0x194 [ 213.445322][ T6726] gfs2_sys_fs_add+0x208/0x428 [ 213.446278][ T6726] gfs2_fill_super+0xe20/0x1a9c [ 213.447273][ T6726] get_tree_bdev+0x35c/0x54c [ 213.448211][ T6726] gfs2_get_tree+0x58/0x1b8 [ 213.449180][ T6726] vfs_get_tree+0x90/0x278 [ 213.450036][ T6726] do_new_mount+0x228/0x818 [ 213.450912][ T6726] path_mount+0x57c/0xfe8 [ 213.451745][ T6726] __arm64_sys_mount+0x488/0x5f8 [ 213.452733][ T6726] invoke_syscall+0x98/0x28c [ 213.453632][ T6726] el0_svc_common+0x13c/0x258 [ 213.454540][ T6726] do_el0_svc+0x5c/0x140 [ 213.455353][ T6726] el0_svc+0x78/0x1d4 [ 213.456127][ T6726] el0t_64_sync_handler+0xcc/0xe4 [ 213.457120][ T6726] el0t_64_sync+0x1a0/0x1a4 [ 213.459991][ T6726] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 213.462578][ T6726] gfs2: fsid=}: error -17 adding sysfs files [ 213.741275][ T6729] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 213.742682][ T6729] CPU: 0 PID: 6729 Comm: syz.1.581 Not tainted syzkaller #0 [ 213.744125][ T6729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 213.746021][ T6729] Call trace: [ 213.746672][ T6729] dump_backtrace+0x0/0x458 [ 213.747601][ T6729] show_stack+0x2c/0x3c [ 213.748364][ T6729] __dump_stack+0x30/0x40 [ 213.749186][ T6729] dump_stack_lvl+0xf4/0x15c [ 213.750124][ T6729] dump_stack+0x1c/0x5c [ 213.750910][ T6729] sysfs_create_dir_ns+0x244/0x264 [ 213.751866][ T6729] kobject_add_internal+0x594/0xc2c [ 213.752927][ T6729] kobject_init_and_add+0x128/0x194 [ 213.753988][ T6729] gfs2_sys_fs_add+0x208/0x428 [ 213.754949][ T6729] gfs2_fill_super+0xe20/0x1a9c [ 213.755845][ T6729] get_tree_bdev+0x35c/0x54c [ 213.756750][ T6729] gfs2_get_tree+0x58/0x1b8 [ 213.757593][ T6729] vfs_get_tree+0x90/0x278 [ 213.758409][ T6729] do_new_mount+0x228/0x818 [ 213.759243][ T6729] path_mount+0x57c/0xfe8 [ 213.760046][ T6729] __arm64_sys_mount+0x488/0x5f8 [ 213.760969][ T6729] invoke_syscall+0x98/0x28c [ 213.761836][ T6729] el0_svc_common+0x13c/0x258 [ 213.762691][ T6729] do_el0_svc+0x5c/0x140 [ 213.763477][ T6729] el0_svc+0x78/0x1d4 [ 213.764238][ T6729] el0t_64_sync_handler+0xcc/0xe4 [ 213.765214][ T6729] el0t_64_sync+0x1a0/0x1a4 [ 213.766385][ T6729] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 213.768475][ T6729] gfs2: fsid=}: error -17 adding sysfs files [ 213.910849][ T6732] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 213.912241][ T6732] CPU: 0 PID: 6732 Comm: syz.1.582 Not tainted syzkaller #0 [ 213.913631][ T6732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 213.915614][ T6732] Call trace: [ 213.916298][ T6732] dump_backtrace+0x0/0x458 [ 213.917267][ T6732] show_stack+0x2c/0x3c [ 213.918141][ T6732] __dump_stack+0x30/0x40 [ 213.919051][ T6732] dump_stack_lvl+0xf4/0x15c [ 213.920062][ T6732] dump_stack+0x1c/0x5c [ 213.920979][ T6732] sysfs_create_dir_ns+0x244/0x264 [ 213.922081][ T6732] kobject_add_internal+0x594/0xc2c [ 213.923224][ T6732] kobject_init_and_add+0x128/0x194 [ 213.924249][ T6732] gfs2_sys_fs_add+0x208/0x428 [ 213.925226][ T6732] gfs2_fill_super+0xe20/0x1a9c [ 213.926225][ T6732] get_tree_bdev+0x35c/0x54c [ 213.927355][ T6732] gfs2_get_tree+0x58/0x1b8 [ 213.928251][ T6732] vfs_get_tree+0x90/0x278 [ 213.929110][ T6732] do_new_mount+0x228/0x818 [ 213.929994][ T6732] path_mount+0x57c/0xfe8 [ 213.930915][ T6732] __arm64_sys_mount+0x488/0x5f8 [ 213.931888][ T6732] invoke_syscall+0x98/0x28c [ 213.932813][ T6732] el0_svc_common+0x13c/0x258 [ 213.933767][ T6732] do_el0_svc+0x5c/0x140 [ 213.934667][ T6732] el0_svc+0x78/0x1d4 [ 213.935515][ T6732] el0t_64_sync_handler+0xcc/0xe4 [ 213.936599][ T6732] el0t_64_sync+0x1a0/0x1a4 [ 213.939031][ T6732] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 213.942045][ T6732] gfs2: fsid=}: error -17 adding sysfs files [ 214.149473][ T6735] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 214.150854][ T6735] CPU: 1 PID: 6735 Comm: syz.1.583 Not tainted syzkaller #0 [ 214.152179][ T6735] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 214.153936][ T6735] Call trace: [ 214.154521][ T6735] dump_backtrace+0x0/0x458 [ 214.155333][ T6735] show_stack+0x2c/0x3c [ 214.156076][ T6735] __dump_stack+0x30/0x40 [ 214.156877][ T6735] dump_stack_lvl+0xf4/0x15c [ 214.157775][ T6735] dump_stack+0x1c/0x5c [ 214.158594][ T6735] sysfs_create_dir_ns+0x244/0x264 [ 214.159696][ T6735] kobject_add_internal+0x594/0xc2c [ 214.160829][ T6735] kobject_init_and_add+0x128/0x194 [ 214.161982][ T6735] gfs2_sys_fs_add+0x208/0x428 [ 214.163026][ T6735] gfs2_fill_super+0xe20/0x1a9c [ 214.164060][ T6735] get_tree_bdev+0x35c/0x54c [ 214.165057][ T6735] gfs2_get_tree+0x58/0x1b8 [ 214.166010][ T6735] vfs_get_tree+0x90/0x278 [ 214.166894][ T6735] do_new_mount+0x228/0x818 [ 214.167815][ T6735] path_mount+0x57c/0xfe8 [ 214.168727][ T6735] __arm64_sys_mount+0x488/0x5f8 [ 214.169756][ T6735] invoke_syscall+0x98/0x28c [ 214.170621][ T6735] el0_svc_common+0x13c/0x258 [ 214.171516][ T6735] do_el0_svc+0x5c/0x140 [ 214.172327][ T6735] el0_svc+0x78/0x1d4 [ 214.173083][ T6735] el0t_64_sync_handler+0xcc/0xe4 [ 214.174011][ T6735] el0t_64_sync+0x1a0/0x1a4 [ 214.176345][ T6735] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 214.178867][ T6735] gfs2: fsid=}: error -17 adding sysfs files [ 214.321238][ T6738] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 214.322616][ T6738] CPU: 1 PID: 6738 Comm: syz.1.584 Not tainted syzkaller #0 [ 214.324043][ T6738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 214.325844][ T6738] Call trace: [ 214.326560][ T6738] dump_backtrace+0x0/0x458 [ 214.327572][ T6738] show_stack+0x2c/0x3c [ 214.328388][ T6738] __dump_stack+0x30/0x40 [ 214.329264][ T6738] dump_stack_lvl+0xf4/0x15c [ 214.330207][ T6738] dump_stack+0x1c/0x5c [ 214.331037][ T6738] sysfs_create_dir_ns+0x244/0x264 [ 214.332164][ T6738] kobject_add_internal+0x594/0xc2c [ 214.333135][ T6738] kobject_init_and_add+0x128/0x194 [ 214.334119][ T6738] gfs2_sys_fs_add+0x208/0x428 [ 214.335023][ T6738] gfs2_fill_super+0xe20/0x1a9c [ 214.336027][ T6738] get_tree_bdev+0x35c/0x54c [ 214.336996][ T6738] gfs2_get_tree+0x58/0x1b8 [ 214.337973][ T6738] vfs_get_tree+0x90/0x278 [ 214.338838][ T6738] do_new_mount+0x228/0x818 [ 214.339668][ T6738] path_mount+0x57c/0xfe8 [ 214.340509][ T6738] __arm64_sys_mount+0x488/0x5f8 [ 214.341466][ T6738] invoke_syscall+0x98/0x28c [ 214.342407][ T6738] el0_svc_common+0x13c/0x258 [ 214.343464][ T6738] do_el0_svc+0x5c/0x140 [ 214.344386][ T6738] el0_svc+0x78/0x1d4 [ 214.345275][ T6738] el0t_64_sync_handler+0xcc/0xe4 [ 214.346245][ T6738] el0t_64_sync+0x1a0/0x1a4 [ 214.349932][ T6738] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 214.352163][ T6738] gfs2: fsid=}: error -17 adding sysfs files [ 214.490111][ T6741] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 214.491708][ T6741] CPU: 0 PID: 6741 Comm: syz.1.585 Not tainted syzkaller #0 [ 214.492980][ T6741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 214.494839][ T6741] Call trace: [ 214.495409][ T6741] dump_backtrace+0x0/0x458 [ 214.496362][ T6741] show_stack+0x2c/0x3c [ 214.497241][ T6741] __dump_stack+0x30/0x40 [ 214.498202][ T6741] dump_stack_lvl+0xf4/0x15c [ 214.499213][ T6741] dump_stack+0x1c/0x5c [ 214.500075][ T6741] sysfs_create_dir_ns+0x244/0x264 [ 214.501218][ T6741] kobject_add_internal+0x594/0xc2c [ 214.502323][ T6741] kobject_init_and_add+0x128/0x194 [ 214.503401][ T6741] gfs2_sys_fs_add+0x208/0x428 [ 214.504282][ T6741] gfs2_fill_super+0xe20/0x1a9c [ 214.505220][ T6741] get_tree_bdev+0x35c/0x54c [ 214.506114][ T6741] gfs2_get_tree+0x58/0x1b8 [ 214.507039][ T6741] vfs_get_tree+0x90/0x278 [ 214.507947][ T6741] do_new_mount+0x228/0x818 [ 214.508869][ T6741] path_mount+0x57c/0xfe8 [ 214.509743][ T6741] __arm64_sys_mount+0x488/0x5f8 [ 214.510861][ T6741] invoke_syscall+0x98/0x28c [ 214.511812][ T6741] el0_svc_common+0x13c/0x258 [ 214.512772][ T6741] do_el0_svc+0x5c/0x140 [ 214.513710][ T6741] el0_svc+0x78/0x1d4 [ 214.514488][ T6741] el0t_64_sync_handler+0xcc/0xe4 [ 214.515565][ T6741] el0t_64_sync+0x1a0/0x1a4 [ 214.518008][ T6741] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 214.520482][ T6741] gfs2: fsid=}: error -17 adding sysfs files [ 214.802296][ T6744] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 214.803584][ T6744] CPU: 1 PID: 6744 Comm: syz.1.586 Not tainted syzkaller #0 [ 214.804986][ T6744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 214.806825][ T6744] Call trace: [ 214.807440][ T6744] dump_backtrace+0x0/0x458 [ 214.808350][ T6744] show_stack+0x2c/0x3c [ 214.809151][ T6744] __dump_stack+0x30/0x40 [ 214.809989][ T6744] dump_stack_lvl+0xf4/0x15c [ 214.810895][ T6744] dump_stack+0x1c/0x5c [ 214.811694][ T6744] sysfs_create_dir_ns+0x244/0x264 [ 214.812611][ T6744] kobject_add_internal+0x594/0xc2c [ 214.813680][ T6744] kobject_init_and_add+0x128/0x194 [ 214.814724][ T6744] gfs2_sys_fs_add+0x208/0x428 [ 214.815713][ T6744] gfs2_fill_super+0xe20/0x1a9c [ 214.816636][ T6744] get_tree_bdev+0x35c/0x54c [ 214.817499][ T6744] gfs2_get_tree+0x58/0x1b8 [ 214.818403][ T6744] vfs_get_tree+0x90/0x278 [ 214.819244][ T6744] do_new_mount+0x228/0x818 [ 214.820089][ T6744] path_mount+0x57c/0xfe8 [ 214.820923][ T6744] __arm64_sys_mount+0x488/0x5f8 [ 214.821811][ T6744] invoke_syscall+0x98/0x28c [ 214.822621][ T6744] el0_svc_common+0x13c/0x258 [ 214.823468][ T6744] do_el0_svc+0x5c/0x140 [ 214.824237][ T6744] el0_svc+0x78/0x1d4 [ 214.824966][ T6744] el0t_64_sync_handler+0xcc/0xe4 [ 214.825885][ T6744] el0t_64_sync+0x1a0/0x1a4 [ 214.828123][ T6744] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 214.830709][ T6744] gfs2: fsid=}: error -17 adding sysfs files [ 215.060996][ T6747] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 215.062445][ T6747] CPU: 1 PID: 6747 Comm: syz.1.587 Not tainted syzkaller #0 [ 215.063896][ T6747] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 215.065892][ T6747] Call trace: [ 215.066566][ T6747] dump_backtrace+0x0/0x458 [ 215.067536][ T6747] show_stack+0x2c/0x3c [ 215.068423][ T6747] __dump_stack+0x30/0x40 [ 215.069252][ T6747] dump_stack_lvl+0xf4/0x15c [ 215.070146][ T6747] dump_stack+0x1c/0x5c [ 215.070947][ T6747] sysfs_create_dir_ns+0x244/0x264 [ 215.071809][ T6747] kobject_add_internal+0x594/0xc2c [ 215.072816][ T6747] kobject_init_and_add+0x128/0x194 [ 215.073854][ T6747] gfs2_sys_fs_add+0x208/0x428 [ 215.074815][ T6747] gfs2_fill_super+0xe20/0x1a9c [ 215.075803][ T6747] get_tree_bdev+0x35c/0x54c [ 215.076622][ T6747] gfs2_get_tree+0x58/0x1b8 [ 215.077452][ T6747] vfs_get_tree+0x90/0x278 [ 215.078305][ T6747] do_new_mount+0x228/0x818 [ 215.079168][ T6747] path_mount+0x57c/0xfe8 [ 215.079962][ T6747] __arm64_sys_mount+0x488/0x5f8 [ 215.080955][ T6747] invoke_syscall+0x98/0x28c [ 215.081880][ T6747] el0_svc_common+0x13c/0x258 [ 215.082794][ T6747] do_el0_svc+0x5c/0x140 [ 215.083645][ T6747] el0_svc+0x78/0x1d4 [ 215.084447][ T6747] el0t_64_sync_handler+0xcc/0xe4 [ 215.085463][ T6747] el0t_64_sync+0x1a0/0x1a4 [ 215.087997][ T6747] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 215.090467][ T6747] gfs2: fsid=}: error -17 adding sysfs files [ 215.297176][ T6750] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 215.298648][ T6750] CPU: 1 PID: 6750 Comm: syz.1.588 Not tainted syzkaller #0 [ 215.300089][ T6750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 215.301998][ T6750] Call trace: [ 215.302658][ T6750] dump_backtrace+0x0/0x458 [ 215.303465][ T6750] show_stack+0x2c/0x3c [ 215.304293][ T6750] __dump_stack+0x30/0x40 [ 215.305124][ T6750] dump_stack_lvl+0xf4/0x15c [ 215.306049][ T6750] dump_stack+0x1c/0x5c [ 215.306946][ T6750] sysfs_create_dir_ns+0x244/0x264 [ 215.308051][ T6750] kobject_add_internal+0x594/0xc2c [ 215.309121][ T6750] kobject_init_and_add+0x128/0x194 [ 215.310144][ T6750] gfs2_sys_fs_add+0x208/0x428 [ 215.311072][ T6750] gfs2_fill_super+0xe20/0x1a9c [ 215.312047][ T6750] get_tree_bdev+0x35c/0x54c [ 215.312944][ T6750] gfs2_get_tree+0x58/0x1b8 [ 215.313883][ T6750] vfs_get_tree+0x90/0x278 [ 215.314861][ T6750] do_new_mount+0x228/0x818 [ 215.315851][ T6750] path_mount+0x57c/0xfe8 [ 215.316791][ T6750] __arm64_sys_mount+0x488/0x5f8 [ 215.317847][ T6750] invoke_syscall+0x98/0x28c [ 215.318822][ T6750] el0_svc_common+0x13c/0x258 [ 215.319852][ T6750] do_el0_svc+0x5c/0x140 [ 215.320776][ T6750] el0_svc+0x78/0x1d4 [ 215.321632][ T6750] el0t_64_sync_handler+0xcc/0xe4 [ 215.322725][ T6750] el0t_64_sync+0x1a0/0x1a4 [ 215.325006][ T6750] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 215.327632][ T6750] gfs2: fsid=}: error -17 adding sysfs files [ 215.538466][ T6753] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 215.539797][ T6753] CPU: 0 PID: 6753 Comm: syz.1.589 Not tainted syzkaller #0 [ 215.541151][ T6753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 215.543055][ T6753] Call trace: [ 215.543657][ T6753] dump_backtrace+0x0/0x458 [ 215.544536][ T6753] show_stack+0x2c/0x3c [ 215.545354][ T6753] __dump_stack+0x30/0x40 [ 215.546221][ T6753] dump_stack_lvl+0xf4/0x15c [ 215.547203][ T6753] dump_stack+0x1c/0x5c [ 215.548017][ T6753] sysfs_create_dir_ns+0x244/0x264 [ 215.549000][ T6753] kobject_add_internal+0x594/0xc2c [ 215.549942][ T6753] kobject_init_and_add+0x128/0x194 [ 215.550901][ T6753] gfs2_sys_fs_add+0x208/0x428 [ 215.551832][ T6753] gfs2_fill_super+0xe20/0x1a9c [ 215.552784][ T6753] get_tree_bdev+0x35c/0x54c [ 215.553785][ T6753] gfs2_get_tree+0x58/0x1b8 [ 215.554665][ T6753] vfs_get_tree+0x90/0x278 [ 215.555567][ T6753] do_new_mount+0x228/0x818 [ 215.556463][ T6753] path_mount+0x57c/0xfe8 [ 215.557336][ T6753] __arm64_sys_mount+0x488/0x5f8 [ 215.558236][ T6753] invoke_syscall+0x98/0x28c [ 215.559200][ T6753] el0_svc_common+0x13c/0x258 [ 215.560159][ T6753] do_el0_svc+0x5c/0x140 [ 215.561002][ T6753] el0_svc+0x78/0x1d4 [ 215.561776][ T6753] el0t_64_sync_handler+0xcc/0xe4 [ 215.562713][ T6753] el0t_64_sync+0x1a0/0x1a4 [ 215.565545][ T6753] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 215.568376][ T6753] gfs2: fsid=}: error -17 adding sysfs files [ 215.791870][ T6756] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 215.793184][ T6756] CPU: 0 PID: 6756 Comm: syz.1.590 Not tainted syzkaller #0 [ 215.794790][ T6756] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 215.796861][ T6756] Call trace: [ 215.797548][ T6756] dump_backtrace+0x0/0x458 [ 215.798563][ T6756] show_stack+0x2c/0x3c [ 215.799479][ T6756] __dump_stack+0x30/0x40 [ 215.800428][ T6756] dump_stack_lvl+0xf4/0x15c [ 215.801413][ T6756] dump_stack+0x1c/0x5c [ 215.802328][ T6756] sysfs_create_dir_ns+0x244/0x264 [ 215.803462][ T6756] kobject_add_internal+0x594/0xc2c [ 215.804682][ T6756] kobject_init_and_add+0x128/0x194 [ 215.805810][ T6756] gfs2_sys_fs_add+0x208/0x428 [ 215.806853][ T6756] gfs2_fill_super+0xe20/0x1a9c [ 215.807892][ T6756] get_tree_bdev+0x35c/0x54c [ 215.808896][ T6756] gfs2_get_tree+0x58/0x1b8 [ 215.809855][ T6756] vfs_get_tree+0x90/0x278 [ 215.810821][ T6756] do_new_mount+0x228/0x818 [ 215.811733][ T6756] path_mount+0x57c/0xfe8 [ 215.812608][ T6756] __arm64_sys_mount+0x488/0x5f8 [ 215.813601][ T6756] invoke_syscall+0x98/0x28c [ 215.814549][ T6756] el0_svc_common+0x13c/0x258 [ 215.815547][ T6756] do_el0_svc+0x5c/0x140 [ 215.816444][ T6756] el0_svc+0x78/0x1d4 [ 215.817282][ T6756] el0t_64_sync_handler+0xcc/0xe4 [ 215.818324][ T6756] el0t_64_sync+0x1a0/0x1a4 [ 215.820797][ T6756] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 215.823422][ T6756] gfs2: fsid=}: error -17 adding sysfs files 1970/01/01 00:03:35 executed programs: 577 [ 216.081206][ T6759] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 216.082476][ T6759] CPU: 0 PID: 6759 Comm: syz.1.591 Not tainted syzkaller #0 [ 216.083803][ T6759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 216.085558][ T6759] Call trace: [ 216.086204][ T6759] dump_backtrace+0x0/0x458 [ 216.087084][ T6759] show_stack+0x2c/0x3c [ 216.088004][ T6759] __dump_stack+0x30/0x40 [ 216.088881][ T6759] dump_stack_lvl+0xf4/0x15c [ 216.089842][ T6759] dump_stack+0x1c/0x5c [ 216.090702][ T6759] sysfs_create_dir_ns+0x244/0x264 [ 216.091648][ T6759] kobject_add_internal+0x594/0xc2c [ 216.092686][ T6759] kobject_init_and_add+0x128/0x194 [ 216.093731][ T6759] gfs2_sys_fs_add+0x208/0x428 [ 216.094637][ T6759] gfs2_fill_super+0xe20/0x1a9c [ 216.095671][ T6759] get_tree_bdev+0x35c/0x54c [ 216.096639][ T6759] gfs2_get_tree+0x58/0x1b8 [ 216.097487][ T6759] vfs_get_tree+0x90/0x278 [ 216.098344][ T6759] do_new_mount+0x228/0x818 [ 216.099218][ T6759] path_mount+0x57c/0xfe8 [ 216.100059][ T6759] __arm64_sys_mount+0x488/0x5f8 [ 216.101104][ T6759] invoke_syscall+0x98/0x28c [ 216.102045][ T6759] el0_svc_common+0x13c/0x258 [ 216.102963][ T6759] do_el0_svc+0x5c/0x140 [ 216.103878][ T6759] el0_svc+0x78/0x1d4 [ 216.104636][ T6759] el0t_64_sync_handler+0xcc/0xe4 [ 216.105711][ T6759] el0t_64_sync+0x1a0/0x1a4 [ 216.108961][ T6759] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 216.111445][ T6759] gfs2: fsid=}: error -17 adding sysfs files [ 216.446864][ T6762] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 216.448166][ T6762] CPU: 1 PID: 6762 Comm: syz.1.592 Not tainted syzkaller #0 [ 216.449599][ T6762] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 216.451602][ T6762] Call trace: [ 216.452213][ T6762] dump_backtrace+0x0/0x458 [ 216.452983][ T6762] show_stack+0x2c/0x3c [ 216.453751][ T6762] __dump_stack+0x30/0x40 [ 216.454579][ T6762] dump_stack_lvl+0xf4/0x15c [ 216.455418][ T6762] dump_stack+0x1c/0x5c [ 216.456174][ T6762] sysfs_create_dir_ns+0x244/0x264 [ 216.457149][ T6762] kobject_add_internal+0x594/0xc2c [ 216.458121][ T6762] kobject_init_and_add+0x128/0x194 [ 216.459100][ T6762] gfs2_sys_fs_add+0x208/0x428 [ 216.459968][ T6762] gfs2_fill_super+0xe20/0x1a9c [ 216.460894][ T6762] get_tree_bdev+0x35c/0x54c [ 216.461785][ T6762] gfs2_get_tree+0x58/0x1b8 [ 216.462618][ T6762] vfs_get_tree+0x90/0x278 [ 216.463434][ T6762] do_new_mount+0x228/0x818 [ 216.464260][ T6762] path_mount+0x57c/0xfe8 [ 216.465072][ T6762] __arm64_sys_mount+0x488/0x5f8 [ 216.465980][ T6762] invoke_syscall+0x98/0x28c [ 216.466773][ T6762] el0_svc_common+0x13c/0x258 [ 216.467616][ T6762] do_el0_svc+0x5c/0x140 [ 216.468396][ T6762] el0_svc+0x78/0x1d4 [ 216.469110][ T6762] el0t_64_sync_handler+0xcc/0xe4 [ 216.470018][ T6762] el0t_64_sync+0x1a0/0x1a4 [ 216.472146][ T6762] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 216.474651][ T6762] gfs2: fsid=}: error -17 adding sysfs files [ 216.690137][ T6765] set_capacity_and_notify: 12 callbacks suppressed [ 216.690148][ T6765] loop1: detected capacity change from 0 to 32768 [ 216.730811][ T6765] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 216.732060][ T6765] CPU: 0 PID: 6765 Comm: syz.1.593 Not tainted syzkaller #0 [ 216.733426][ T6765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 216.735380][ T6765] Call trace: [ 216.736002][ T6765] dump_backtrace+0x0/0x458 [ 216.736929][ T6765] show_stack+0x2c/0x3c [ 216.737802][ T6765] __dump_stack+0x30/0x40 [ 216.738734][ T6765] dump_stack_lvl+0xf4/0x15c [ 216.739644][ T6765] dump_stack+0x1c/0x5c [ 216.740503][ T6765] sysfs_create_dir_ns+0x244/0x264 [ 216.741498][ T6765] kobject_add_internal+0x594/0xc2c [ 216.742594][ T6765] kobject_init_and_add+0x128/0x194 [ 216.743744][ T6765] gfs2_sys_fs_add+0x208/0x428 [ 216.744819][ T6765] gfs2_fill_super+0xe20/0x1a9c [ 216.745825][ T6765] get_tree_bdev+0x35c/0x54c [ 216.746717][ T6765] gfs2_get_tree+0x58/0x1b8 [ 216.747630][ T6765] vfs_get_tree+0x90/0x278 [ 216.748546][ T6765] do_new_mount+0x228/0x818 [ 216.749433][ T6765] path_mount+0x57c/0xfe8 [ 216.750387][ T6765] __arm64_sys_mount+0x488/0x5f8 [ 216.751475][ T6765] invoke_syscall+0x98/0x28c [ 216.752390][ T6765] el0_svc_common+0x13c/0x258 [ 216.753380][ T6765] do_el0_svc+0x5c/0x140 [ 216.754200][ T6765] el0_svc+0x78/0x1d4 [ 216.754954][ T6765] el0t_64_sync_handler+0xcc/0xe4 [ 216.755953][ T6765] el0t_64_sync+0x1a0/0x1a4 [ 216.758443][ T6765] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 216.760753][ T6765] gfs2: fsid=}: error -17 adding sysfs files [ 216.966909][ T6768] loop1: detected capacity change from 0 to 32768 [ 217.012941][ T6768] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 217.014238][ T6768] CPU: 1 PID: 6768 Comm: syz.1.594 Not tainted syzkaller #0 [ 217.015707][ T6768] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 217.017823][ T6768] Call trace: [ 217.018518][ T6768] dump_backtrace+0x0/0x458 [ 217.019470][ T6768] show_stack+0x2c/0x3c [ 217.020337][ T6768] __dump_stack+0x30/0x40 [ 217.021173][ T6768] dump_stack_lvl+0xf4/0x15c [ 217.022017][ T6768] dump_stack+0x1c/0x5c [ 217.022816][ T6768] sysfs_create_dir_ns+0x244/0x264 [ 217.023779][ T6768] kobject_add_internal+0x594/0xc2c [ 217.024763][ T6768] kobject_init_and_add+0x128/0x194 [ 217.025739][ T6768] gfs2_sys_fs_add+0x208/0x428 [ 217.026650][ T6768] gfs2_fill_super+0xe20/0x1a9c [ 217.027550][ T6768] get_tree_bdev+0x35c/0x54c [ 217.028430][ T6768] gfs2_get_tree+0x58/0x1b8 [ 217.029292][ T6768] vfs_get_tree+0x90/0x278 [ 217.030162][ T6768] do_new_mount+0x228/0x818 [ 217.031039][ T6768] path_mount+0x57c/0xfe8 [ 217.031863][ T6768] __arm64_sys_mount+0x488/0x5f8 [ 217.032780][ T6768] invoke_syscall+0x98/0x28c [ 217.033607][ T6768] el0_svc_common+0x13c/0x258 [ 217.034502][ T6768] do_el0_svc+0x5c/0x140 [ 217.035318][ T6768] el0_svc+0x78/0x1d4 [ 217.036103][ T6768] el0t_64_sync_handler+0xcc/0xe4 [ 217.037081][ T6768] el0t_64_sync+0x1a0/0x1a4 [ 217.038193][ T6768] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 217.040552][ T6768] gfs2: fsid=}: error -17 adding sysfs files [ 217.170798][ T6771] loop1: detected capacity change from 0 to 32768 [ 217.220879][ T6771] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 217.222210][ T6771] CPU: 1 PID: 6771 Comm: syz.1.595 Not tainted syzkaller #0 [ 217.223474][ T6771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 217.225244][ T6771] Call trace: [ 217.225802][ T6771] dump_backtrace+0x0/0x458 [ 217.226643][ T6771] show_stack+0x2c/0x3c [ 217.227443][ T6771] __dump_stack+0x30/0x40 [ 217.228247][ T6771] dump_stack_lvl+0xf4/0x15c [ 217.229145][ T6771] dump_stack+0x1c/0x5c [ 217.230039][ T6771] sysfs_create_dir_ns+0x244/0x264 [ 217.231102][ T6771] kobject_add_internal+0x594/0xc2c [ 217.232142][ T6771] kobject_init_and_add+0x128/0x194 [ 217.233183][ T6771] gfs2_sys_fs_add+0x208/0x428 [ 217.234164][ T6771] gfs2_fill_super+0xe20/0x1a9c [ 217.235182][ T6771] get_tree_bdev+0x35c/0x54c [ 217.236212][ T6771] gfs2_get_tree+0x58/0x1b8 [ 217.237054][ T6771] vfs_get_tree+0x90/0x278 [ 217.237945][ T6771] do_new_mount+0x228/0x818 [ 217.238875][ T6771] path_mount+0x57c/0xfe8 [ 217.239758][ T6771] __arm64_sys_mount+0x488/0x5f8 [ 217.240767][ T6771] invoke_syscall+0x98/0x28c [ 217.241714][ T6771] el0_svc_common+0x13c/0x258 [ 217.242719][ T6771] do_el0_svc+0x5c/0x140 [ 217.243617][ T6771] el0_svc+0x78/0x1d4 [ 217.244440][ T6771] el0t_64_sync_handler+0xcc/0xe4 [ 217.245337][ T6771] el0t_64_sync+0x1a0/0x1a4 [ 217.247619][ T6771] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 217.249851][ T6771] gfs2: fsid=}: error -17 adding sysfs files [ 217.381601][ T6774] loop1: detected capacity change from 0 to 32768 [ 217.445532][ T6774] sysfs: cannot create duplicate filename '/fs/gfs2/}' [ 217.447419][ T6774] CPU: 1 PID: 6774 Comm: syz.1.596 Not tainted syzkaller #0 [ 217.448853][ T6774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 217.450891][ T6774] Call trace: [ 217.451540][ T6774] dump_backtrace+0x0/0x458 [ 217.452446][ T6774] show_stack+0x2c/0x3c [ 217.453208][ T6774] __dump_stack+0x30/0x40 [ 217.454048][ T6774] dump_stack_lvl+0xf4/0x15c [ 217.454973][ T6774] dump_stack+0x1c/0x5c [ 217.455865][ T6774] sysfs_create_dir_ns+0x244/0x264 [ 217.457027][ T6774] kobject_add_internal+0x594/0xc2c [ 217.458198][ T6774] kobject_init_and_add+0x128/0x194 [ 217.459376][ T6774] gfs2_sys_fs_add+0x208/0x428 [ 217.460310][ T6774] gfs2_fill_super+0xe20/0x1a9c [ 217.461420][ T6774] get_tree_bdev+0x35c/0x54c [ 217.462456][ T6774] gfs2_get_tree+0x58/0x1b8 [ 217.463387][ T6774] vfs_get_tree+0x90/0x278 [ 217.464371][ T6774] do_new_mount+0x228/0x818 [ 217.465357][ T6774] path_mount+0x57c/0xfe8 [ 217.466033][ T27] INFO: task syz-executor:4853 blocked for more than 143 seconds. [ 217.466299][ T6774] __arm64_sys_mount+0x488/0x5f8 [ 217.467682][ T27] Not tainted syzkaller #0 [ 217.468717][ T6774] invoke_syscall+0x98/0x28c [ 217.469533][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 217.470490][ T6774] el0_svc_common+0x13c/0x258 [ 217.471977][ T27] task:syz-executor state:D [ 217.472848][ T6774] do_el0_svc+0x5c/0x140 [ 217.472853][ T27] stack: 0 pid: 4853 ppid: 1 flags:0x00000001 [ 217.472863][ T6774] el0_svc+0x78/0x1d4 [ 217.473642][ T27] Call trace: [ 217.474491][ T6774] el0t_64_sync_handler+0xcc/0xe4 [ 217.474506][ T6774] el0t_64_sync+0x1a0/0x1a4 [ 217.476075][ T6774] kobject_add_internal failed for } with -EEXIST, don't try to register things with the same name in the same directory. [ 217.481469][ T6774] gfs2: fsid=}: error -17 adding sysfs files [ 217.481578][ T27] __switch_to+0x2f4/0x540 [ 217.488999][ T27] __schedule+0xe20/0x1c6c [ 217.489868][ T27] schedule+0x11c/0x1c8 [ 217.490710][ T27] bit_wait+0x1c/0xac [ 217.491555][ T27] out_of_line_wait_on_bit+0x16c/0x218 [ 217.492565][ T27] gfs2_glock_nq+0x8dc/0x13d0 [ 217.493480][ T27] __gfs2_lookup+0x120/0x28c [ 217.494346][ T27] gfs2_lookup+0x2c/0x3c [ 217.495174][ T27] __lookup_slow+0x25c/0x39c [ 217.498311][ T27] lookup_slow+0x60/0x84 [ 217.499214][ T27] walk_component+0x2b8/0x3b8 [ 217.500173][ T27] path_lookupat+0x168/0x3f0 [ 217.501053][ T27] filename_lookup+0x1c8/0x478 [ 217.501949][ T27] user_path_at_empty+0x5c/0x1a0 [ 217.502937][ T27] __arm64_sys_umount+0xf8/0x184 [ 217.503892][ T27] invoke_syscall+0x98/0x28c [ 217.504717][ T27] el0_svc_common+0x13c/0x258 [ 217.505579][ T27] do_el0_svc+0x5c/0x140 [ 217.506956][ T27] el0_svc+0x78/0x1d4 [ 217.507688][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 217.508612][ T27] el0t_64_sync+0x1a0/0x1a4 [ 217.509556][ T27] [ 217.509556][ T27] Showing all locks held in the system: [ 217.510894][ T27] 1 lock held by khungtaskd/27: [ 217.511764][ T27] #0: ffff8000145a1520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 217.513666][ T27] 2 locks held by getty/3798: [ 217.514579][ T27] #0: ffff0000d3db1098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 217.516877][ T27] #1: ffff80001bfce2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf90 [ 217.518843][ T27] 1 lock held by syz-executor/4853: [ 217.519876][ T27] #0: ffff0000ee8c0818 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 [ 217.521576][ T27] 2 locks held by udevd/5017: [ 217.522479][ T27] #0: ffff0000cc251d18 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xdc/0x6c4 [ 217.524558][ T27] #1: ffff0000cc2a8468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xa0/0x988 [ 217.527004][ T27] 5 locks held by syz.1.597/6777: [ 217.528052][ T27] [ 217.528530][ T27] ============================================= [ 217.528530][ T27] [ 217.530261][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 217.531623][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 217.533014][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 [ 217.535019][ T27] Call trace: [ 217.535602][ T27] dump_backtrace+0x0/0x458 [ 217.536551][ T27] show_stack+0x2c/0x3c [ 217.537359][ T27] __dump_stack+0x30/0x40 [ 217.538192][ T27] dump_stack_lvl+0xf4/0x15c [ 217.538971][ T27] dump_stack+0x1c/0x5c [ 217.539777][ T27] panic+0x2fc/0x860 [ 217.540517][ T27] hung_task_panic+0x0/0x2c [ 217.541434][ T27] kthread+0x37c/0x460 [ 217.542191][ T27] ret_from_fork+0x10/0x20 [ 217.543076][ T27] SMP: stopping secondary CPUs [ 217.544022][ T27] Kernel Offset: disabled [ 217.544852][ T27] CPU features: 0x5,000003c1,7d33ffd9 [ 217.545917][ T27] Memory Limit: none [ 217.905339][ T27] Rebooting in 86400 seconds..