474724][ T5824] Call trace: [ 193.475269][ T5824] dump_backtrace+0x0/0x458 [ 193.476059][ T5824] show_stack+0x2c/0x3c [ 193.476774][ T5824] __dump_stack+0x30/0x40 [ 193.477540][ T5824] dump_stack_lvl+0xf4/0x15c [ 193.478298][ T5824] dump_stack+0x1c/0x5c [ 193.479062][ T5824] sysfs_create_dir_ns+0x244/0x264 [ 193.479963][ T5824] kobject_add_internal+0x594/0xc2c [ 193.480854][ T5824] kobject_init_and_add+0x128/0x194 [ 193.481694][ T5824] gfs2_sys_fs_add+0x208/0x428 [ 193.482486][ T5824] gfs2_fill_super+0xe20/0x1a9c [ 193.483309][ T5824] get_tree_bdev+0x35c/0x54c [ 193.484115][ T5824] gfs2_get_tree+0x58/0x1b8 [ 193.484844][ T5824] vfs_get_tree+0x90/0x278 [ 193.485535][ T5824] do_new_mount+0x228/0x804 [ 193.486276][ T5824] path_mount+0x57c/0xfe8 [ 193.487034][ T5824] __arm64_sys_mount+0x488/0x5f8 [ 193.487827][ T5824] invoke_syscall+0x98/0x28c [ 193.488591][ T5824] el0_svc_common+0x13c/0x258 [ 193.489425][ T5824] do_el0_svc+0x5c/0x140 [ 193.490135][ T5824] el0_svc+0x78/0x1d0 [ 193.490858][ T5824] el0t_64_sync_handler+0xcc/0xe4 [ 193.491715][ T5824] el0t_64_sync+0x1a0/0x1a4 [ 193.493070][ T5824] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 193.495163][ T5824] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 193.664261][ T5826] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 193.665672][ T5826] CPU: 0 PID: 5826 Comm: syz.1.552 Not tainted syzkaller #0 [ 193.667031][ T5826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 193.668764][ T5826] Call trace: [ 193.669337][ T5826] dump_backtrace+0x0/0x458 [ 193.670143][ T5826] show_stack+0x2c/0x3c [ 193.670809][ T5826] __dump_stack+0x30/0x40 [ 193.671586][ T5826] dump_stack_lvl+0xf4/0x15c [ 193.672364][ T5826] dump_stack+0x1c/0x5c [ 193.673102][ T5826] sysfs_create_dir_ns+0x244/0x264 [ 193.673983][ T5826] kobject_add_internal+0x594/0xc2c [ 193.674921][ T5826] kobject_init_and_add+0x128/0x194 [ 193.675813][ T5826] gfs2_sys_fs_add+0x208/0x428 [ 193.676607][ T5826] gfs2_fill_super+0xe20/0x1a9c [ 193.677470][ T5826] get_tree_bdev+0x35c/0x54c [ 193.678380][ T5826] gfs2_get_tree+0x58/0x1b8 [ 193.679171][ T5826] vfs_get_tree+0x90/0x278 [ 193.679941][ T5826] do_new_mount+0x228/0x804 [ 193.680912][ T5826] path_mount+0x57c/0xfe8 [ 193.681671][ T5826] __arm64_sys_mount+0x488/0x5f8 [ 193.682588][ T5826] invoke_syscall+0x98/0x28c [ 193.683422][ T5826] el0_svc_common+0x13c/0x258 [ 193.684259][ T5826] do_el0_svc+0x5c/0x140 [ 193.685105][ T5826] el0_svc+0x78/0x1d0 [ 193.685807][ T5826] el0t_64_sync_handler+0xcc/0xe4 [ 193.686670][ T5826] el0t_64_sync+0x1a0/0x1a4 [ 193.688877][ T5826] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 193.691102][ T5826] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 193.830093][ T5828] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 193.831426][ T5828] CPU: 0 PID: 5828 Comm: syz.1.553 Not tainted syzkaller #0 [ 193.832650][ T5828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 193.834459][ T5828] Call trace: [ 193.835090][ T5828] dump_backtrace+0x0/0x458 [ 193.835997][ T5828] show_stack+0x2c/0x3c [ 193.836706][ T5828] __dump_stack+0x30/0x40 [ 193.837448][ T5828] dump_stack_lvl+0xf4/0x15c [ 193.838242][ T5828] dump_stack+0x1c/0x5c [ 193.838970][ T5828] sysfs_create_dir_ns+0x244/0x264 [ 193.839837][ T5828] kobject_add_internal+0x594/0xc2c [ 193.840691][ T5828] kobject_init_and_add+0x128/0x194 [ 193.841572][ T5828] gfs2_sys_fs_add+0x208/0x428 [ 193.842389][ T5828] gfs2_fill_super+0xe20/0x1a9c [ 193.843204][ T5828] get_tree_bdev+0x35c/0x54c [ 193.843957][ T5828] gfs2_get_tree+0x58/0x1b8 [ 193.844732][ T5828] vfs_get_tree+0x90/0x278 [ 193.845510][ T5828] do_new_mount+0x228/0x804 [ 193.846292][ T5828] path_mount+0x57c/0xfe8 [ 193.847032][ T5828] __arm64_sys_mount+0x488/0x5f8 [ 193.847895][ T5828] invoke_syscall+0x98/0x28c [ 193.848749][ T5828] el0_svc_common+0x13c/0x258 [ 193.849570][ T5828] do_el0_svc+0x5c/0x140 [ 193.850323][ T5828] el0_svc+0x78/0x1d0 [ 193.851028][ T5828] el0t_64_sync_handler+0xcc/0xe4 [ 193.851948][ T5828] el0t_64_sync+0x1a0/0x1a4 [ 193.854218][ T5828] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 193.856446][ T5828] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 194.034911][ T5830] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 194.036243][ T5830] CPU: 0 PID: 5830 Comm: syz.1.554 Not tainted syzkaller #0 [ 194.037393][ T5830] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 194.039021][ T5830] Call trace: [ 194.039525][ T5830] dump_backtrace+0x0/0x458 [ 194.040215][ T5830] show_stack+0x2c/0x3c [ 194.040880][ T5830] __dump_stack+0x30/0x40 [ 194.041564][ T5830] dump_stack_lvl+0xf4/0x15c [ 194.042340][ T5830] dump_stack+0x1c/0x5c [ 194.043059][ T5830] sysfs_create_dir_ns+0x244/0x264 [ 194.043994][ T5830] kobject_add_internal+0x594/0xc2c [ 194.044949][ T5830] kobject_init_and_add+0x128/0x194 [ 194.045851][ T5830] gfs2_sys_fs_add+0x208/0x428 [ 194.046711][ T5830] gfs2_fill_super+0xe20/0x1a9c [ 194.047514][ T5830] get_tree_bdev+0x35c/0x54c [ 194.048275][ T5830] gfs2_get_tree+0x58/0x1b8 [ 194.049049][ T5830] vfs_get_tree+0x90/0x278 [ 194.049791][ T5830] do_new_mount+0x228/0x804 [ 194.050594][ T5830] path_mount+0x57c/0xfe8 [ 194.051317][ T5830] __arm64_sys_mount+0x488/0x5f8 [ 194.052180][ T5830] invoke_syscall+0x98/0x28c [ 194.053040][ T5830] el0_svc_common+0x13c/0x258 [ 194.053824][ T5830] do_el0_svc+0x5c/0x140 [ 194.054585][ T5830] el0_svc+0x78/0x1d0 [ 194.055208][ T5830] el0t_64_sync_handler+0xcc/0xe4 [ 194.056015][ T5830] el0t_64_sync+0x1a0/0x1a4 [ 194.060984][ T5830] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 194.063528][ T5830] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 194.244029][ T5832] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 194.245364][ T5832] CPU: 0 PID: 5832 Comm: syz.1.555 Not tainted syzkaller #0 [ 194.246735][ T5832] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 194.248446][ T5832] Call trace: [ 194.248964][ T5832] dump_backtrace+0x0/0x458 [ 194.249737][ T5832] show_stack+0x2c/0x3c [ 194.250451][ T5832] __dump_stack+0x30/0x40 [ 194.251216][ T5832] dump_stack_lvl+0xf4/0x15c [ 194.252174][ T5832] dump_stack+0x1c/0x5c [ 194.252882][ T5832] sysfs_create_dir_ns+0x244/0x264 [ 194.253806][ T5832] kobject_add_internal+0x594/0xc2c [ 194.254747][ T5832] kobject_init_and_add+0x128/0x194 [ 194.255797][ T5832] gfs2_sys_fs_add+0x208/0x428 [ 194.256729][ T5832] gfs2_fill_super+0xe20/0x1a9c [ 194.257699][ T5832] get_tree_bdev+0x35c/0x54c [ 194.258498][ T5832] gfs2_get_tree+0x58/0x1b8 [ 194.259228][ T5832] vfs_get_tree+0x90/0x278 [ 194.259960][ T5832] do_new_mount+0x228/0x804 [ 194.260735][ T5832] path_mount+0x57c/0xfe8 [ 194.261483][ T5832] __arm64_sys_mount+0x488/0x5f8 [ 194.262306][ T5832] invoke_syscall+0x98/0x28c [ 194.263101][ T5832] el0_svc_common+0x13c/0x258 [ 194.263908][ T5832] do_el0_svc+0x5c/0x140 [ 194.264652][ T5832] el0_svc+0x78/0x1d0 [ 194.265353][ T5832] el0t_64_sync_handler+0xcc/0xe4 [ 194.266245][ T5832] el0t_64_sync+0x1a0/0x1a4 [ 194.267842][ T5832] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 194.269995][ T5832] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 194.407623][ T5834] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 194.409010][ T5834] CPU: 1 PID: 5834 Comm: syz.1.556 Not tainted syzkaller #0 [ 194.410180][ T5834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 194.411889][ T5834] Call trace: [ 194.412414][ T5834] dump_backtrace+0x0/0x458 [ 194.413149][ T5834] show_stack+0x2c/0x3c [ 194.413889][ T5834] __dump_stack+0x30/0x40 [ 194.414593][ T5834] dump_stack_lvl+0xf4/0x15c [ 194.415336][ T5834] dump_stack+0x1c/0x5c [ 194.415966][ T5834] sysfs_create_dir_ns+0x244/0x264 [ 194.416826][ T5834] kobject_add_internal+0x594/0xc2c [ 194.417691][ T5834] kobject_init_and_add+0x128/0x194 [ 194.418612][ T5834] gfs2_sys_fs_add+0x208/0x428 [ 194.419543][ T5834] gfs2_fill_super+0xe20/0x1a9c [ 194.420375][ T5834] get_tree_bdev+0x35c/0x54c [ 194.421166][ T5834] gfs2_get_tree+0x58/0x1b8 [ 194.421998][ T5834] vfs_get_tree+0x90/0x278 [ 194.422706][ T5834] do_new_mount+0x228/0x804 [ 194.423513][ T5834] path_mount+0x57c/0xfe8 [ 194.424236][ T5834] __arm64_sys_mount+0x488/0x5f8 [ 194.425036][ T5834] invoke_syscall+0x98/0x28c [ 194.425808][ T5834] el0_svc_common+0x13c/0x258 [ 194.426601][ T5834] do_el0_svc+0x5c/0x140 [ 194.427302][ T5834] el0_svc+0x78/0x1d0 [ 194.428002][ T5834] el0t_64_sync_handler+0xcc/0xe4 [ 194.428881][ T5834] el0t_64_sync+0x1a0/0x1a4 [ 194.429710][ T5834] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 194.431755][ T5834] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 194.653634][ T5836] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 194.655029][ T5836] CPU: 0 PID: 5836 Comm: syz.1.557 Not tainted syzkaller #0 [ 194.656227][ T5836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 194.658029][ T5836] Call trace: [ 194.658606][ T5836] dump_backtrace+0x0/0x458 [ 194.659405][ T5836] show_stack+0x2c/0x3c [ 194.660099][ T5836] __dump_stack+0x30/0x40 [ 194.661027][ T5836] dump_stack_lvl+0xf4/0x15c [ 194.661861][ T5836] dump_stack+0x1c/0x5c [ 194.662686][ T5836] sysfs_create_dir_ns+0x244/0x264 [ 194.663614][ T5836] kobject_add_internal+0x594/0xc2c [ 194.664527][ T5836] kobject_init_and_add+0x128/0x194 [ 194.665507][ T5836] gfs2_sys_fs_add+0x208/0x428 [ 194.666205][ T5836] gfs2_fill_super+0xe20/0x1a9c [ 194.666916][ T5836] get_tree_bdev+0x35c/0x54c [ 194.667625][ T5836] gfs2_get_tree+0x58/0x1b8 [ 194.668415][ T5836] vfs_get_tree+0x90/0x278 [ 194.669169][ T5836] do_new_mount+0x228/0x804 [ 194.669976][ T5836] path_mount+0x57c/0xfe8 [ 194.670719][ T5836] __arm64_sys_mount+0x488/0x5f8 [ 194.671623][ T5836] invoke_syscall+0x98/0x28c [ 194.672389][ T5836] el0_svc_common+0x13c/0x258 [ 194.673205][ T5836] do_el0_svc+0x5c/0x140 [ 194.673903][ T5836] el0_svc+0x78/0x1d0 [ 194.674592][ T5836] el0t_64_sync_handler+0xcc/0xe4 [ 194.675445][ T5836] el0t_64_sync+0x1a0/0x1a4 [ 194.678483][ T5836] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 194.680714][ T5836] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 194.858664][ T5838] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 194.860085][ T5838] CPU: 0 PID: 5838 Comm: syz.1.558 Not tainted syzkaller #0 [ 194.861424][ T5838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 194.863382][ T5838] Call trace: [ 194.864015][ T5838] dump_backtrace+0x0/0x458 [ 194.864931][ T5838] show_stack+0x2c/0x3c [ 194.865675][ T5838] __dump_stack+0x30/0x40 [ 194.866445][ T5838] dump_stack_lvl+0xf4/0x15c [ 194.867343][ T5838] dump_stack+0x1c/0x5c [ 194.868048][ T5838] sysfs_create_dir_ns+0x244/0x264 [ 194.868928][ T5838] kobject_add_internal+0x594/0xc2c [ 194.869866][ T5838] kobject_init_and_add+0x128/0x194 [ 194.870800][ T5838] gfs2_sys_fs_add+0x208/0x428 [ 194.871632][ T5838] gfs2_fill_super+0xe20/0x1a9c [ 194.872526][ T5838] get_tree_bdev+0x35c/0x54c [ 194.873340][ T5838] gfs2_get_tree+0x58/0x1b8 [ 194.874373][ T5838] vfs_get_tree+0x90/0x278 [ 194.875110][ T5838] do_new_mount+0x228/0x804 [ 194.875873][ T5838] path_mount+0x57c/0xfe8 [ 194.876639][ T5838] __arm64_sys_mount+0x488/0x5f8 [ 194.877525][ T5838] invoke_syscall+0x98/0x28c [ 194.878310][ T5838] el0_svc_common+0x13c/0x258 [ 194.879179][ T5838] do_el0_svc+0x5c/0x140 [ 194.879903][ T5838] el0_svc+0x78/0x1d0 [ 194.880596][ T5838] el0t_64_sync_handler+0xcc/0xe4 [ 194.881526][ T5838] el0t_64_sync+0x1a0/0x1a4 [ 194.883796][ T5838] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 194.886042][ T5838] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:14 executed programs: 544 [ 195.054583][ T5840] set_capacity_and_notify: 14 callbacks suppressed [ 195.054592][ T5840] loop1: detected capacity change from 0 to 32768 [ 195.097653][ T5840] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 195.098970][ T5840] CPU: 1 PID: 5840 Comm: syz.1.559 Not tainted syzkaller #0 [ 195.100188][ T5840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 195.101778][ T5840] Call trace: [ 195.102250][ T5840] dump_backtrace+0x0/0x458 [ 195.102990][ T5840] show_stack+0x2c/0x3c [ 195.103748][ T5840] __dump_stack+0x30/0x40 [ 195.104448][ T5840] dump_stack_lvl+0xf4/0x15c [ 195.105162][ T5840] dump_stack+0x1c/0x5c [ 195.105839][ T5840] sysfs_create_dir_ns+0x244/0x264 [ 195.106644][ T5840] kobject_add_internal+0x594/0xc2c [ 195.108193][ T5840] kobject_init_and_add+0x128/0x194 [ 195.109012][ T5840] gfs2_sys_fs_add+0x208/0x428 [ 195.109767][ T5840] gfs2_fill_super+0xe20/0x1a9c [ 195.110619][ T5840] get_tree_bdev+0x35c/0x54c [ 195.111360][ T5840] gfs2_get_tree+0x58/0x1b8 [ 195.112078][ T5840] vfs_get_tree+0x90/0x278 [ 195.112764][ T5840] do_new_mount+0x228/0x804 [ 195.113493][ T5840] path_mount+0x57c/0xfe8 [ 195.114245][ T5840] __arm64_sys_mount+0x488/0x5f8 [ 195.115052][ T5840] invoke_syscall+0x98/0x28c [ 195.115827][ T5840] el0_svc_common+0x13c/0x258 [ 195.116583][ T5840] do_el0_svc+0x5c/0x140 [ 195.117317][ T5840] el0_svc+0x78/0x1d0 [ 195.117953][ T5840] el0t_64_sync_handler+0xcc/0xe4 [ 195.118828][ T5840] el0t_64_sync+0x1a0/0x1a4 [ 195.120369][ T5840] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 195.124156][ T5840] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 195.251811][ T5842] loop1: detected capacity change from 0 to 32768 [ 195.337685][ T5842] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 195.338982][ T5842] CPU: 0 PID: 5842 Comm: syz.1.560 Not tainted syzkaller #0 [ 195.340196][ T5842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 195.341852][ T5842] Call trace: [ 195.342360][ T5842] dump_backtrace+0x0/0x458 [ 195.343123][ T5842] show_stack+0x2c/0x3c [ 195.343917][ T5842] __dump_stack+0x30/0x40 [ 195.344708][ T5842] dump_stack_lvl+0xf4/0x15c [ 195.345620][ T5842] dump_stack+0x1c/0x5c [ 195.346409][ T5842] sysfs_create_dir_ns+0x244/0x264 [ 195.347329][ T5842] kobject_add_internal+0x594/0xc2c [ 195.348296][ T5842] kobject_init_and_add+0x128/0x194 [ 195.349245][ T5842] gfs2_sys_fs_add+0x208/0x428 [ 195.350071][ T5842] gfs2_fill_super+0xe20/0x1a9c [ 195.350926][ T5842] get_tree_bdev+0x35c/0x54c [ 195.351731][ T5842] gfs2_get_tree+0x58/0x1b8 [ 195.352597][ T5842] vfs_get_tree+0x90/0x278 [ 195.353405][ T5842] do_new_mount+0x228/0x804 [ 195.354238][ T5842] path_mount+0x57c/0xfe8 [ 195.354953][ T5842] __arm64_sys_mount+0x488/0x5f8 [ 195.355786][ T5842] invoke_syscall+0x98/0x28c [ 195.356574][ T5842] el0_svc_common+0x13c/0x258 [ 195.357325][ T5842] do_el0_svc+0x5c/0x140 [ 195.358009][ T5842] el0_svc+0x78/0x1d0 [ 195.358721][ T5842] el0t_64_sync_handler+0xcc/0xe4 [ 195.359655][ T5842] el0t_64_sync+0x1a0/0x1a4 [ 195.362306][ T5842] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 195.364644][ T5842] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 195.495340][ T5844] loop1: detected capacity change from 0 to 32768 [ 195.533996][ T5844] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 195.535477][ T5844] CPU: 0 PID: 5844 Comm: syz.1.561 Not tainted syzkaller #0 [ 195.536839][ T5844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 195.538672][ T5844] Call trace: [ 195.539270][ T5844] dump_backtrace+0x0/0x458 [ 195.540102][ T5844] show_stack+0x2c/0x3c [ 195.540877][ T5844] __dump_stack+0x30/0x40 [ 195.541648][ T5844] dump_stack_lvl+0xf4/0x15c [ 195.542387][ T5844] dump_stack+0x1c/0x5c [ 195.543117][ T5844] sysfs_create_dir_ns+0x244/0x264 [ 195.544044][ T5844] kobject_add_internal+0x594/0xc2c [ 195.545002][ T5844] kobject_init_and_add+0x128/0x194 [ 195.545942][ T5844] gfs2_sys_fs_add+0x208/0x428 [ 195.546817][ T5844] gfs2_fill_super+0xe20/0x1a9c [ 195.547692][ T5844] get_tree_bdev+0x35c/0x54c [ 195.548604][ T5844] gfs2_get_tree+0x58/0x1b8 [ 195.549436][ T5844] vfs_get_tree+0x90/0x278 [ 195.550154][ T5844] do_new_mount+0x228/0x804 [ 195.550994][ T5844] path_mount+0x57c/0xfe8 [ 195.551742][ T5844] __arm64_sys_mount+0x488/0x5f8 [ 195.552591][ T5844] invoke_syscall+0x98/0x28c [ 195.553389][ T5844] el0_svc_common+0x13c/0x258 [ 195.554188][ T5844] do_el0_svc+0x5c/0x140 [ 195.554964][ T5844] el0_svc+0x78/0x1d0 [ 195.555725][ T5844] el0t_64_sync_handler+0xcc/0xe4 [ 195.556675][ T5844] el0t_64_sync+0x1a0/0x1a4 [ 195.558246][ T5844] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 195.560611][ T5844] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 195.692584][ T5846] loop1: detected capacity change from 0 to 32768 [ 195.700218][ T5846] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 195.701414][ T5846] CPU: 0 PID: 5846 Comm: syz.1.562 Not tainted syzkaller #0 [ 195.702530][ T5846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 195.704315][ T5846] Call trace: [ 195.704946][ T5846] dump_backtrace+0x0/0x458 [ 195.705756][ T5846] show_stack+0x2c/0x3c [ 195.706552][ T5846] __dump_stack+0x30/0x40 [ 195.707401][ T5846] dump_stack_lvl+0xf4/0x15c [ 195.708256][ T5846] dump_stack+0x1c/0x5c [ 195.709051][ T5846] sysfs_create_dir_ns+0x244/0x264 [ 195.710019][ T5846] kobject_add_internal+0x594/0xc2c [ 195.710899][ T5846] kobject_init_and_add+0x128/0x194 [ 195.711789][ T5846] gfs2_sys_fs_add+0x208/0x428 [ 195.712655][ T5846] gfs2_fill_super+0xe20/0x1a9c [ 195.713479][ T5846] get_tree_bdev+0x35c/0x54c [ 195.714233][ T5846] gfs2_get_tree+0x58/0x1b8 [ 195.714997][ T5846] vfs_get_tree+0x90/0x278 [ 195.715748][ T5846] do_new_mount+0x228/0x804 [ 195.716554][ T5846] path_mount+0x57c/0xfe8 [ 195.717298][ T5846] __arm64_sys_mount+0x488/0x5f8 [ 195.718253][ T5846] invoke_syscall+0x98/0x28c [ 195.719050][ T5846] el0_svc_common+0x13c/0x258 [ 195.719890][ T5846] do_el0_svc+0x5c/0x140 [ 195.720640][ T5846] el0_svc+0x78/0x1d0 [ 195.721302][ T5846] el0t_64_sync_handler+0xcc/0xe4 [ 195.722192][ T5846] el0t_64_sync+0x1a0/0x1a4 [ 195.724280][ T5846] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 195.726471][ T5846] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 195.858212][ T5848] loop1: detected capacity change from 0 to 32768 [ 195.896959][ T5848] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 195.898263][ T5848] CPU: 0 PID: 5848 Comm: syz.1.563 Not tainted syzkaller #0 [ 195.899431][ T5848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 195.901199][ T5848] Call trace: [ 195.901695][ T5848] dump_backtrace+0x0/0x458 [ 195.902388][ T5848] show_stack+0x2c/0x3c [ 195.903047][ T5848] __dump_stack+0x30/0x40 [ 195.903778][ T5848] dump_stack_lvl+0xf4/0x15c [ 195.904540][ T5848] dump_stack+0x1c/0x5c [ 195.905253][ T5848] sysfs_create_dir_ns+0x244/0x264 [ 195.906183][ T5848] kobject_add_internal+0x594/0xc2c [ 195.907134][ T5848] kobject_init_and_add+0x128/0x194 [ 195.908042][ T5848] gfs2_sys_fs_add+0x208/0x428 [ 195.908886][ T5848] gfs2_fill_super+0xe20/0x1a9c [ 195.909722][ T5848] get_tree_bdev+0x35c/0x54c [ 195.910500][ T5848] gfs2_get_tree+0x58/0x1b8 [ 195.911254][ T5848] vfs_get_tree+0x90/0x278 [ 195.912023][ T5848] do_new_mount+0x228/0x804 [ 195.912776][ T5848] path_mount+0x57c/0xfe8 [ 195.913501][ T5848] __arm64_sys_mount+0x488/0x5f8 [ 195.914324][ T5848] invoke_syscall+0x98/0x28c [ 195.915087][ T5848] el0_svc_common+0x13c/0x258 [ 195.915940][ T5848] do_el0_svc+0x5c/0x140 [ 195.916677][ T5848] el0_svc+0x78/0x1d0 [ 195.917349][ T5848] el0t_64_sync_handler+0xcc/0xe4 [ 195.918225][ T5848] el0t_64_sync+0x1a0/0x1a4 [ 195.920714][ T5848] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 195.923056][ T5848] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.057863][ T5850] loop1: detected capacity change from 0 to 32768 [ 196.065292][ T5850] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.066552][ T5850] CPU: 1 PID: 5850 Comm: syz.1.564 Not tainted syzkaller #0 [ 196.067702][ T5850] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 196.069267][ T5850] Call trace: [ 196.069753][ T5850] dump_backtrace+0x0/0x458 [ 196.070537][ T5850] show_stack+0x2c/0x3c [ 196.071231][ T5850] __dump_stack+0x30/0x40 [ 196.071941][ T5850] dump_stack_lvl+0xf4/0x15c [ 196.072688][ T5850] dump_stack+0x1c/0x5c [ 196.073374][ T5850] sysfs_create_dir_ns+0x244/0x264 [ 196.074230][ T5850] kobject_add_internal+0x594/0xc2c [ 196.075091][ T5850] kobject_init_and_add+0x128/0x194 [ 196.075944][ T5850] gfs2_sys_fs_add+0x208/0x428 [ 196.076977][ T5850] gfs2_fill_super+0xe20/0x1a9c [ 196.077808][ T5850] get_tree_bdev+0x35c/0x54c [ 196.078577][ T5850] gfs2_get_tree+0x58/0x1b8 [ 196.079399][ T5850] vfs_get_tree+0x90/0x278 [ 196.080149][ T5850] do_new_mount+0x228/0x804 [ 196.080877][ T5850] path_mount+0x57c/0xfe8 [ 196.081596][ T5850] __arm64_sys_mount+0x488/0x5f8 [ 196.082412][ T5850] invoke_syscall+0x98/0x28c [ 196.083143][ T5850] el0_svc_common+0x13c/0x258 [ 196.083938][ T5850] do_el0_svc+0x5c/0x140 [ 196.084627][ T5850] el0_svc+0x78/0x1d0 [ 196.085254][ T5850] el0t_64_sync_handler+0xcc/0xe4 [ 196.086062][ T5850] el0t_64_sync+0x1a0/0x1a4 [ 196.086974][ T5850] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 196.089083][ T5850] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.220092][ T5852] loop1: detected capacity change from 0 to 32768 [ 196.228109][ T5852] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.229298][ T5852] CPU: 1 PID: 5852 Comm: syz.1.565 Not tainted syzkaller #0 [ 196.230625][ T5852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 196.232296][ T5852] Call trace: [ 196.232848][ T5852] dump_backtrace+0x0/0x458 [ 196.233690][ T5852] show_stack+0x2c/0x3c [ 196.234404][ T5852] __dump_stack+0x30/0x40 [ 196.235131][ T5852] dump_stack_lvl+0xf4/0x15c [ 196.235860][ T5852] dump_stack+0x1c/0x5c [ 196.236537][ T5852] sysfs_create_dir_ns+0x244/0x264 [ 196.237376][ T5852] kobject_add_internal+0x594/0xc2c [ 196.238206][ T5852] kobject_init_and_add+0x128/0x194 [ 196.239029][ T5852] gfs2_sys_fs_add+0x208/0x428 [ 196.239813][ T5852] gfs2_fill_super+0xe20/0x1a9c [ 196.240594][ T5852] get_tree_bdev+0x35c/0x54c [ 196.241375][ T5852] gfs2_get_tree+0x58/0x1b8 [ 196.242163][ T5852] vfs_get_tree+0x90/0x278 [ 196.242964][ T5852] do_new_mount+0x228/0x804 [ 196.243645][ T5852] path_mount+0x57c/0xfe8 [ 196.244368][ T5852] __arm64_sys_mount+0x488/0x5f8 [ 196.245243][ T5852] invoke_syscall+0x98/0x28c [ 196.246005][ T5852] el0_svc_common+0x13c/0x258 [ 196.246811][ T5852] do_el0_svc+0x5c/0x140 [ 196.247707][ T5852] el0_svc+0x78/0x1d0 [ 196.248418][ T5852] el0t_64_sync_handler+0xcc/0xe4 [ 196.249243][ T5852] el0t_64_sync+0x1a0/0x1a4 [ 196.250539][ T5852] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 196.252842][ T5852] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.390896][ T5854] loop1: detected capacity change from 0 to 32768 [ 196.399060][ T5854] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.400346][ T5854] CPU: 0 PID: 5854 Comm: syz.1.566 Not tainted syzkaller #0 [ 196.401524][ T5854] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 196.403261][ T5854] Call trace: [ 196.403852][ T5854] dump_backtrace+0x0/0x458 [ 196.404653][ T5854] show_stack+0x2c/0x3c [ 196.405466][ T5854] __dump_stack+0x30/0x40 [ 196.406251][ T5854] dump_stack_lvl+0xf4/0x15c [ 196.407115][ T5854] dump_stack+0x1c/0x5c [ 196.407871][ T5854] sysfs_create_dir_ns+0x244/0x264 [ 196.408835][ T5854] kobject_add_internal+0x594/0xc2c [ 196.409774][ T5854] kobject_init_and_add+0x128/0x194 [ 196.410711][ T5854] gfs2_sys_fs_add+0x208/0x428 [ 196.411559][ T5854] gfs2_fill_super+0xe20/0x1a9c [ 196.412372][ T5854] get_tree_bdev+0x35c/0x54c [ 196.413276][ T5854] gfs2_get_tree+0x58/0x1b8 [ 196.414062][ T5854] vfs_get_tree+0x90/0x278 [ 196.414845][ T5854] do_new_mount+0x228/0x804 [ 196.415661][ T5854] path_mount+0x57c/0xfe8 [ 196.416498][ T5854] __arm64_sys_mount+0x488/0x5f8 [ 196.417391][ T5854] invoke_syscall+0x98/0x28c [ 196.418204][ T5854] el0_svc_common+0x13c/0x258 [ 196.419002][ T5854] do_el0_svc+0x5c/0x140 [ 196.419735][ T5854] el0_svc+0x78/0x1d0 [ 196.420448][ T5854] el0t_64_sync_handler+0xcc/0xe4 [ 196.421371][ T5854] el0t_64_sync+0x1a0/0x1a4 [ 196.422714][ T5854] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 196.424946][ T5854] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.565881][ T5856] loop1: detected capacity change from 0 to 32768 [ 196.613984][ T5856] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.615160][ T5856] CPU: 1 PID: 5856 Comm: syz.1.567 Not tainted syzkaller #0 [ 196.616420][ T5856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 196.618068][ T5856] Call trace: [ 196.618595][ T5856] dump_backtrace+0x0/0x458 [ 196.619382][ T5856] show_stack+0x2c/0x3c [ 196.620055][ T5856] __dump_stack+0x30/0x40 [ 196.620763][ T5856] dump_stack_lvl+0xf4/0x15c [ 196.621502][ T5856] dump_stack+0x1c/0x5c [ 196.622201][ T5856] sysfs_create_dir_ns+0x244/0x264 [ 196.623086][ T5856] kobject_add_internal+0x594/0xc2c [ 196.623993][ T5856] kobject_init_and_add+0x128/0x194 [ 196.624865][ T5856] gfs2_sys_fs_add+0x208/0x428 [ 196.625711][ T5856] gfs2_fill_super+0xe20/0x1a9c [ 196.626516][ T5856] get_tree_bdev+0x35c/0x54c [ 196.627260][ T5856] gfs2_get_tree+0x58/0x1b8 [ 196.628000][ T5856] vfs_get_tree+0x90/0x278 [ 196.628776][ T5856] do_new_mount+0x228/0x804 [ 196.629523][ T5856] path_mount+0x57c/0xfe8 [ 196.630239][ T5856] __arm64_sys_mount+0x488/0x5f8 [ 196.631068][ T5856] invoke_syscall+0x98/0x28c [ 196.631864][ T5856] el0_svc_common+0x13c/0x258 [ 196.632684][ T5856] do_el0_svc+0x5c/0x140 [ 196.633369][ T5856] el0_svc+0x78/0x1d0 [ 196.634004][ T5856] el0t_64_sync_handler+0xcc/0xe4 [ 196.634825][ T5856] el0t_64_sync+0x1a0/0x1a4 [ 196.637223][ T5856] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 196.639457][ T5856] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.772167][ T5858] loop1: detected capacity change from 0 to 32768 [ 196.780070][ T5858] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.781285][ T5858] CPU: 0 PID: 5858 Comm: syz.1.568 Not tainted syzkaller #0 [ 196.782474][ T5858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 196.784469][ T5858] Call trace: [ 196.785051][ T5858] dump_backtrace+0x0/0x458 [ 196.785843][ T5858] show_stack+0x2c/0x3c [ 196.786526][ T5858] __dump_stack+0x30/0x40 [ 196.787314][ T5858] dump_stack_lvl+0xf4/0x15c [ 196.788168][ T5858] dump_stack+0x1c/0x5c [ 196.788858][ T5858] sysfs_create_dir_ns+0x244/0x264 [ 196.789681][ T5858] kobject_add_internal+0x594/0xc2c [ 196.790583][ T5858] kobject_init_and_add+0x128/0x194 [ 196.791579][ T5858] gfs2_sys_fs_add+0x208/0x428 [ 196.792303][ T5858] gfs2_fill_super+0xe20/0x1a9c [ 196.793117][ T5858] get_tree_bdev+0x35c/0x54c [ 196.793937][ T5858] gfs2_get_tree+0x58/0x1b8 [ 196.794771][ T5858] vfs_get_tree+0x90/0x278 [ 196.795618][ T5858] do_new_mount+0x228/0x804 [ 196.796422][ T5858] path_mount+0x57c/0xfe8 [ 196.797237][ T5858] __arm64_sys_mount+0x488/0x5f8 [ 196.798040][ T5858] invoke_syscall+0x98/0x28c [ 196.798774][ T5858] el0_svc_common+0x13c/0x258 [ 196.799626][ T5858] do_el0_svc+0x5c/0x140 [ 196.800333][ T5858] el0_svc+0x78/0x1d0 [ 196.801024][ T5858] el0t_64_sync_handler+0xcc/0xe4 [ 196.801882][ T5858] el0t_64_sync+0x1a0/0x1a4 [ 196.802771][ T5858] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 196.804961][ T5858] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.989382][ T5860] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.990682][ T5860] CPU: 0 PID: 5860 Comm: syz.1.569 Not tainted syzkaller #0 [ 196.991908][ T5860] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 196.993677][ T5860] Call trace: [ 196.994225][ T5860] dump_backtrace+0x0/0x458 [ 196.995058][ T5860] show_stack+0x2c/0x3c [ 196.995785][ T5860] __dump_stack+0x30/0x40 [ 196.996538][ T5860] dump_stack_lvl+0xf4/0x15c [ 196.997345][ T5860] dump_stack+0x1c/0x5c [ 196.998120][ T5860] sysfs_create_dir_ns+0x244/0x264 [ 196.998977][ T5860] kobject_add_internal+0x594/0xc2c [ 196.999922][ T5860] kobject_init_and_add+0x128/0x194 [ 197.000798][ T5860] gfs2_sys_fs_add+0x208/0x428 [ 197.001599][ T5860] gfs2_fill_super+0xe20/0x1a9c [ 197.002484][ T5860] get_tree_bdev+0x35c/0x54c [ 197.003278][ T5860] gfs2_get_tree+0x58/0x1b8 [ 197.004027][ T5860] vfs_get_tree+0x90/0x278 [ 197.004753][ T5860] do_new_mount+0x228/0x804 [ 197.005555][ T5860] path_mount+0x57c/0xfe8 [ 197.006313][ T5860] __arm64_sys_mount+0x488/0x5f8 [ 197.007207][ T5860] invoke_syscall+0x98/0x28c [ 197.008012][ T5860] el0_svc_common+0x13c/0x258 [ 197.008808][ T5860] do_el0_svc+0x5c/0x140 [ 197.009525][ T5860] el0_svc+0x78/0x1d0 [ 197.010231][ T5860] el0t_64_sync_handler+0xcc/0xe4 [ 197.011142][ T5860] el0t_64_sync+0x1a0/0x1a4 [ 197.012127][ T5860] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.014595][ T5860] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 197.187512][ T5862] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 197.189111][ T5862] CPU: 0 PID: 5862 Comm: syz.1.570 Not tainted syzkaller #0 [ 197.190258][ T5862] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 197.191968][ T5862] Call trace: [ 197.192532][ T5862] dump_backtrace+0x0/0x458 [ 197.193343][ T5862] show_stack+0x2c/0x3c [ 197.194085][ T5862] __dump_stack+0x30/0x40 [ 197.194832][ T5862] dump_stack_lvl+0xf4/0x15c [ 197.195665][ T5862] dump_stack+0x1c/0x5c [ 197.196345][ T5862] sysfs_create_dir_ns+0x244/0x264 [ 197.197258][ T5862] kobject_add_internal+0x594/0xc2c [ 197.198169][ T5862] kobject_init_and_add+0x128/0x194 [ 197.199126][ T5862] gfs2_sys_fs_add+0x208/0x428 [ 197.199970][ T5862] gfs2_fill_super+0xe20/0x1a9c [ 197.200891][ T5862] get_tree_bdev+0x35c/0x54c [ 197.201690][ T5862] gfs2_get_tree+0x58/0x1b8 [ 197.202473][ T5862] vfs_get_tree+0x90/0x278 [ 197.203265][ T5862] do_new_mount+0x228/0x804 [ 197.204023][ T5862] path_mount+0x57c/0xfe8 [ 197.204878][ T5862] __arm64_sys_mount+0x488/0x5f8 [ 197.205801][ T5862] invoke_syscall+0x98/0x28c [ 197.206576][ T5862] el0_svc_common+0x13c/0x258 [ 197.207455][ T5862] do_el0_svc+0x5c/0x140 [ 197.208245][ T5862] el0_svc+0x78/0x1d0 [ 197.208931][ T5862] el0t_64_sync_handler+0xcc/0xe4 [ 197.209865][ T5862] el0t_64_sync+0x1a0/0x1a4 [ 197.211172][ T5862] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.213492][ T5862] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 197.407268][ T5864] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 197.408641][ T5864] CPU: 0 PID: 5864 Comm: syz.1.571 Not tainted syzkaller #0 [ 197.409979][ T5864] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 197.411616][ T5864] Call trace: [ 197.412103][ T5864] dump_backtrace+0x0/0x458 [ 197.412810][ T5864] show_stack+0x2c/0x3c [ 197.413571][ T5864] __dump_stack+0x30/0x40 [ 197.414417][ T5864] dump_stack_lvl+0xf4/0x15c [ 197.415342][ T5864] dump_stack+0x1c/0x5c [ 197.416085][ T5864] sysfs_create_dir_ns+0x244/0x264 [ 197.417129][ T5864] kobject_add_internal+0x594/0xc2c [ 197.418078][ T5864] kobject_init_and_add+0x128/0x194 [ 197.418999][ T5864] gfs2_sys_fs_add+0x208/0x428 [ 197.419813][ T5864] gfs2_fill_super+0xe20/0x1a9c [ 197.420638][ T5864] get_tree_bdev+0x35c/0x54c [ 197.421594][ T5864] gfs2_get_tree+0x58/0x1b8 [ 197.422412][ T5864] vfs_get_tree+0x90/0x278 [ 197.423215][ T5864] do_new_mount+0x228/0x804 [ 197.424019][ T5864] path_mount+0x57c/0xfe8 [ 197.424797][ T5864] __arm64_sys_mount+0x488/0x5f8 [ 197.425671][ T5864] invoke_syscall+0x98/0x28c [ 197.426467][ T5864] el0_svc_common+0x13c/0x258 [ 197.427380][ T5864] do_el0_svc+0x5c/0x140 [ 197.428281][ T5864] el0_svc+0x78/0x1d0 [ 197.429145][ T5864] el0t_64_sync_handler+0xcc/0xe4 [ 197.430243][ T5864] el0t_64_sync+0x1a0/0x1a4 [ 197.431552][ T5864] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.434067][ T5864] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 197.575982][ T5866] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 197.577170][ T5866] CPU: 1 PID: 5866 Comm: syz.1.572 Not tainted syzkaller #0 [ 197.578450][ T5866] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 197.580133][ T5866] Call trace: [ 197.580720][ T5866] dump_backtrace+0x0/0x458 [ 197.581471][ T5866] show_stack+0x2c/0x3c [ 197.582197][ T5866] __dump_stack+0x30/0x40 [ 197.582846][ T5866] dump_stack_lvl+0xf4/0x15c [ 197.583644][ T5866] dump_stack+0x1c/0x5c [ 197.584398][ T5866] sysfs_create_dir_ns+0x244/0x264 [ 197.585228][ T5866] kobject_add_internal+0x594/0xc2c [ 197.586113][ T5866] kobject_init_and_add+0x128/0x194 [ 197.587001][ T5866] gfs2_sys_fs_add+0x208/0x428 [ 197.587816][ T5866] gfs2_fill_super+0xe20/0x1a9c [ 197.588611][ T5866] get_tree_bdev+0x35c/0x54c [ 197.589413][ T5866] gfs2_get_tree+0x58/0x1b8 [ 197.590195][ T5866] vfs_get_tree+0x90/0x278 [ 197.590939][ T5866] do_new_mount+0x228/0x804 [ 197.591670][ T5866] path_mount+0x57c/0xfe8 [ 197.592338][ T5866] __arm64_sys_mount+0x488/0x5f8 [ 197.593132][ T5866] invoke_syscall+0x98/0x28c [ 197.593881][ T5866] el0_svc_common+0x13c/0x258 [ 197.594587][ T5866] do_el0_svc+0x5c/0x140 [ 197.595252][ T5866] el0_svc+0x78/0x1d0 [ 197.595941][ T5866] el0t_64_sync_handler+0xcc/0xe4 [ 197.596673][ T5866] el0t_64_sync+0x1a0/0x1a4 [ 197.598748][ T5866] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.600937][ T5866] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 197.773961][ T5868] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 197.775358][ T5868] CPU: 1 PID: 5868 Comm: syz.1.573 Not tainted syzkaller #0 [ 197.776522][ T5868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 197.778085][ T5868] Call trace: [ 197.778645][ T5868] dump_backtrace+0x0/0x458 [ 197.779443][ T5868] show_stack+0x2c/0x3c [ 197.780227][ T5868] __dump_stack+0x30/0x40 [ 197.781073][ T5868] dump_stack_lvl+0xf4/0x15c [ 197.781860][ T5868] dump_stack+0x1c/0x5c [ 197.782547][ T5868] sysfs_create_dir_ns+0x244/0x264 [ 197.783503][ T5868] kobject_add_internal+0x594/0xc2c [ 197.784408][ T5868] kobject_init_and_add+0x128/0x194 [ 197.785379][ T5868] gfs2_sys_fs_add+0x208/0x428 [ 197.786154][ T5868] gfs2_fill_super+0xe20/0x1a9c [ 197.787044][ T5868] get_tree_bdev+0x35c/0x54c [ 197.787821][ T5868] gfs2_get_tree+0x58/0x1b8 [ 197.788584][ T5868] vfs_get_tree+0x90/0x278 [ 197.789354][ T5868] do_new_mount+0x228/0x804 [ 197.790214][ T5868] path_mount+0x57c/0xfe8 [ 197.790976][ T5868] __arm64_sys_mount+0x488/0x5f8 [ 197.791850][ T5868] invoke_syscall+0x98/0x28c [ 197.792664][ T5868] el0_svc_common+0x13c/0x258 [ 197.793498][ T5868] do_el0_svc+0x5c/0x140 [ 197.794179][ T5868] el0_svc+0x78/0x1d0 [ 197.794790][ T5868] el0t_64_sync_handler+0xcc/0xe4 [ 197.795613][ T5868] el0t_64_sync+0x1a0/0x1a4 [ 197.798034][ T5868] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.800314][ T5868] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 197.943197][ T5870] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 197.944595][ T5870] CPU: 0 PID: 5870 Comm: syz.1.574 Not tainted syzkaller #0 [ 197.945771][ T5870] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 197.947500][ T5870] Call trace: [ 197.948003][ T5870] dump_backtrace+0x0/0x458 [ 197.948750][ T5870] show_stack+0x2c/0x3c [ 197.949500][ T5870] __dump_stack+0x30/0x40 [ 197.950249][ T5870] dump_stack_lvl+0xf4/0x15c [ 197.951057][ T5870] dump_stack+0x1c/0x5c [ 197.951743][ T5870] sysfs_create_dir_ns+0x244/0x264 [ 197.952657][ T5870] kobject_add_internal+0x594/0xc2c [ 197.953610][ T5870] kobject_init_and_add+0x128/0x194 [ 197.954591][ T5870] gfs2_sys_fs_add+0x208/0x428 [ 197.955438][ T5870] gfs2_fill_super+0xe20/0x1a9c [ 197.956292][ T5870] get_tree_bdev+0x35c/0x54c [ 197.957045][ T5870] gfs2_get_tree+0x58/0x1b8 [ 197.957858][ T5870] vfs_get_tree+0x90/0x278 [ 197.958568][ T5870] do_new_mount+0x228/0x804 [ 197.959345][ T5870] path_mount+0x57c/0xfe8 [ 197.960067][ T5870] __arm64_sys_mount+0x488/0x5f8 [ 197.960905][ T5870] invoke_syscall+0x98/0x28c [ 197.961862][ T5870] el0_svc_common+0x13c/0x258 [ 197.962752][ T5870] do_el0_svc+0x5c/0x140 [ 197.963543][ T5870] el0_svc+0x78/0x1d0 [ 197.964292][ T5870] el0t_64_sync_handler+0xcc/0xe4 [ 197.965181][ T5870] el0t_64_sync+0x1a0/0x1a4 [ 197.966281][ T5870] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.968557][ T5870] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.144199][ T5872] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.145611][ T5872] CPU: 1 PID: 5872 Comm: syz.1.575 Not tainted syzkaller #0 [ 198.146840][ T5872] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 198.148441][ T5872] Call trace: [ 198.148972][ T5872] dump_backtrace+0x0/0x458 [ 198.149712][ T5872] show_stack+0x2c/0x3c [ 198.150522][ T5872] __dump_stack+0x30/0x40 [ 198.151343][ T5872] dump_stack_lvl+0xf4/0x15c [ 198.152174][ T5872] dump_stack+0x1c/0x5c [ 198.152831][ T5872] sysfs_create_dir_ns+0x244/0x264 [ 198.153659][ T5872] kobject_add_internal+0x594/0xc2c [ 198.154526][ T5872] kobject_init_and_add+0x128/0x194 [ 198.155398][ T5872] gfs2_sys_fs_add+0x208/0x428 [ 198.156192][ T5872] gfs2_fill_super+0xe20/0x1a9c [ 198.156925][ T5872] get_tree_bdev+0x35c/0x54c [ 198.157689][ T5872] gfs2_get_tree+0x58/0x1b8 [ 198.158444][ T5872] vfs_get_tree+0x90/0x278 [ 198.159176][ T5872] do_new_mount+0x228/0x804 [ 198.160011][ T5872] path_mount+0x57c/0xfe8 [ 198.160769][ T5872] __arm64_sys_mount+0x488/0x5f8 [ 198.161767][ T5872] invoke_syscall+0x98/0x28c [ 198.162694][ T5872] el0_svc_common+0x13c/0x258 [ 198.163420][ T5872] do_el0_svc+0x5c/0x140 [ 198.164115][ T5872] el0_svc+0x78/0x1d0 [ 198.164769][ T5872] el0t_64_sync_handler+0xcc/0xe4 [ 198.165591][ T5872] el0t_64_sync+0x1a0/0x1a4 [ 198.167815][ T5872] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.170044][ T5872] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.353855][ T5874] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.355425][ T5874] CPU: 0 PID: 5874 Comm: syz.1.576 Not tainted syzkaller #0 [ 198.356611][ T5874] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 198.358274][ T5874] Call trace: [ 198.358802][ T5874] dump_backtrace+0x0/0x458 [ 198.359530][ T5874] show_stack+0x2c/0x3c [ 198.360212][ T5874] __dump_stack+0x30/0x40 [ 198.360968][ T5874] dump_stack_lvl+0xf4/0x15c [ 198.361679][ T5874] dump_stack+0x1c/0x5c [ 198.362334][ T5874] sysfs_create_dir_ns+0x244/0x264 [ 198.363176][ T5874] kobject_add_internal+0x594/0xc2c [ 198.364110][ T5874] kobject_init_and_add+0x128/0x194 [ 198.365020][ T5874] gfs2_sys_fs_add+0x208/0x428 [ 198.365836][ T5874] gfs2_fill_super+0xe20/0x1a9c [ 198.366679][ T5874] get_tree_bdev+0x35c/0x54c [ 198.367484][ T5874] gfs2_get_tree+0x58/0x1b8 [ 198.368284][ T5874] vfs_get_tree+0x90/0x278 [ 198.369068][ T5874] do_new_mount+0x228/0x804 [ 198.369845][ T5874] path_mount+0x57c/0xfe8 [ 198.370561][ T5874] __arm64_sys_mount+0x488/0x5f8 [ 198.371408][ T5874] invoke_syscall+0x98/0x28c [ 198.372207][ T5874] el0_svc_common+0x13c/0x258 [ 198.373051][ T5874] do_el0_svc+0x5c/0x140 [ 198.373808][ T5874] el0_svc+0x78/0x1d0 [ 198.374530][ T5874] el0t_64_sync_handler+0xcc/0xe4 [ 198.375460][ T5874] el0t_64_sync+0x1a0/0x1a4 [ 198.376569][ T5874] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.378825][ T5874] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.547344][ T5876] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.548844][ T5876] CPU: 0 PID: 5876 Comm: syz.1.577 Not tainted syzkaller #0 [ 198.550070][ T5876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 198.551813][ T5876] Call trace: [ 198.552352][ T5876] dump_backtrace+0x0/0x458 [ 198.553142][ T5876] show_stack+0x2c/0x3c [ 198.553842][ T5876] __dump_stack+0x30/0x40 [ 198.554614][ T5876] dump_stack_lvl+0xf4/0x15c [ 198.555413][ T5876] dump_stack+0x1c/0x5c [ 198.556161][ T5876] sysfs_create_dir_ns+0x244/0x264 [ 198.557042][ T5876] kobject_add_internal+0x594/0xc2c [ 198.557984][ T5876] kobject_init_and_add+0x128/0x194 [ 198.558925][ T5876] gfs2_sys_fs_add+0x208/0x428 [ 198.559874][ T5876] gfs2_fill_super+0xe20/0x1a9c [ 198.560732][ T5876] get_tree_bdev+0x35c/0x54c [ 198.561586][ T5876] gfs2_get_tree+0x58/0x1b8 [ 198.562401][ T5876] vfs_get_tree+0x90/0x278 [ 198.563231][ T5876] do_new_mount+0x228/0x804 [ 198.564070][ T5876] path_mount+0x57c/0xfe8 [ 198.564824][ T5876] __arm64_sys_mount+0x488/0x5f8 [ 198.565689][ T5876] invoke_syscall+0x98/0x28c [ 198.566560][ T5876] el0_svc_common+0x13c/0x258 [ 198.567441][ T5876] do_el0_svc+0x5c/0x140 [ 198.568183][ T5876] el0_svc+0x78/0x1d0 [ 198.568870][ T5876] el0t_64_sync_handler+0xcc/0xe4 [ 198.569766][ T5876] el0t_64_sync+0x1a0/0x1a4 [ 198.571032][ T5876] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.573332][ T5876] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.774681][ T5878] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.775901][ T5878] CPU: 0 PID: 5878 Comm: syz.1.578 Not tainted syzkaller #0 [ 198.776994][ T5878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 198.778569][ T5878] Call trace: [ 198.779094][ T5878] dump_backtrace+0x0/0x458 [ 198.779842][ T5878] show_stack+0x2c/0x3c [ 198.780558][ T5878] __dump_stack+0x30/0x40 [ 198.781297][ T5878] dump_stack_lvl+0xf4/0x15c [ 198.782209][ T5878] dump_stack+0x1c/0x5c [ 198.782967][ T5878] sysfs_create_dir_ns+0x244/0x264 [ 198.783901][ T5878] kobject_add_internal+0x594/0xc2c [ 198.784840][ T5878] kobject_init_and_add+0x128/0x194 [ 198.785760][ T5878] gfs2_sys_fs_add+0x208/0x428 [ 198.786607][ T5878] gfs2_fill_super+0xe20/0x1a9c [ 198.787502][ T5878] get_tree_bdev+0x35c/0x54c [ 198.788452][ T5878] gfs2_get_tree+0x58/0x1b8 [ 198.789255][ T5878] vfs_get_tree+0x90/0x278 [ 198.790031][ T5878] do_new_mount+0x228/0x804 [ 198.790882][ T5878] path_mount+0x57c/0xfe8 [ 198.791744][ T5878] __arm64_sys_mount+0x488/0x5f8 [ 198.792670][ T5878] invoke_syscall+0x98/0x28c [ 198.793468][ T5878] el0_svc_common+0x13c/0x258 [ 198.794369][ T5878] do_el0_svc+0x5c/0x140 [ 198.795206][ T5878] el0_svc+0x78/0x1d0 [ 198.795967][ T5878] el0t_64_sync_handler+0xcc/0xe4 [ 198.796806][ T5878] el0t_64_sync+0x1a0/0x1a4 [ 198.798276][ T5878] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.800554][ T5878] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.988606][ T5881] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.989884][ T5881] CPU: 1 PID: 5881 Comm: syz.1.579 Not tainted syzkaller #0 [ 198.991333][ T5881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 198.993106][ T5881] Call trace: [ 198.993639][ T5881] dump_backtrace+0x0/0x458 [ 198.994393][ T5881] show_stack+0x2c/0x3c [ 198.995081][ T5881] __dump_stack+0x30/0x40 [ 198.995838][ T5881] dump_stack_lvl+0xf4/0x15c [ 198.996608][ T5881] dump_stack+0x1c/0x5c [ 198.997292][ T5881] sysfs_create_dir_ns+0x244/0x264 [ 198.998165][ T5881] kobject_add_internal+0x594/0xc2c [ 198.999043][ T5881] kobject_init_and_add+0x128/0x194 [ 198.999957][ T5881] gfs2_sys_fs_add+0x208/0x428 [ 199.000735][ T5881] gfs2_fill_super+0xe20/0x1a9c [ 199.001551][ T5881] get_tree_bdev+0x35c/0x54c [ 199.002259][ T5881] gfs2_get_tree+0x58/0x1b8 [ 199.002991][ T5881] vfs_get_tree+0x90/0x278 [ 199.003738][ T5881] do_new_mount+0x228/0x804 [ 199.004483][ T5881] path_mount+0x57c/0xfe8 [ 199.005221][ T5881] __arm64_sys_mount+0x488/0x5f8 [ 199.006016][ T5881] invoke_syscall+0x98/0x28c [ 199.006813][ T5881] el0_svc_common+0x13c/0x258 [ 199.007570][ T5881] do_el0_svc+0x5c/0x140 [ 199.008243][ T5881] el0_svc+0x78/0x1d0 [ 199.008901][ T5881] el0t_64_sync_handler+0xcc/0xe4 [ 199.009761][ T5881] el0t_64_sync+0x1a0/0x1a4 [ 199.012822][ T5881] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.014946][ T5881] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.187655][ T5883] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.188895][ T5883] CPU: 1 PID: 5883 Comm: syz.1.580 Not tainted syzkaller #0 [ 199.190143][ T5883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 199.192047][ T5883] Call trace: [ 199.192646][ T5883] dump_backtrace+0x0/0x458 [ 199.193438][ T5883] show_stack+0x2c/0x3c [ 199.194182][ T5883] __dump_stack+0x30/0x40 [ 199.194932][ T5883] dump_stack_lvl+0xf4/0x15c [ 199.195719][ T5883] dump_stack+0x1c/0x5c [ 199.196326][ T5883] sysfs_create_dir_ns+0x244/0x264 [ 199.197122][ T5883] kobject_add_internal+0x594/0xc2c [ 199.197979][ T5883] kobject_init_and_add+0x128/0x194 [ 199.198784][ T5883] gfs2_sys_fs_add+0x208/0x428 [ 199.199534][ T5883] gfs2_fill_super+0xe20/0x1a9c [ 199.200320][ T5883] get_tree_bdev+0x35c/0x54c [ 199.201124][ T5883] gfs2_get_tree+0x58/0x1b8 [ 199.201943][ T5883] vfs_get_tree+0x90/0x278 [ 199.202704][ T5883] do_new_mount+0x228/0x804 [ 199.203475][ T5883] path_mount+0x57c/0xfe8 [ 199.204334][ T5883] __arm64_sys_mount+0x488/0x5f8 [ 199.205190][ T5883] invoke_syscall+0x98/0x28c [ 199.205967][ T5883] el0_svc_common+0x13c/0x258 [ 199.206828][ T5883] do_el0_svc+0x5c/0x140 [ 199.207564][ T5883] el0_svc+0x78/0x1d0 [ 199.208196][ T5883] el0t_64_sync_handler+0xcc/0xe4 [ 199.209064][ T5883] el0t_64_sync+0x1a0/0x1a4 [ 199.211448][ T5883] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.213704][ T5883] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.393949][ T5885] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.395355][ T5885] CPU: 0 PID: 5885 Comm: syz.1.581 Not tainted syzkaller #0 [ 199.396761][ T5885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 199.398692][ T5885] Call trace: [ 199.399329][ T5885] dump_backtrace+0x0/0x458 [ 199.400190][ T5885] show_stack+0x2c/0x3c [ 199.400978][ T5885] __dump_stack+0x30/0x40 [ 199.401790][ T5885] dump_stack_lvl+0xf4/0x15c [ 199.402632][ T5885] dump_stack+0x1c/0x5c [ 199.403415][ T5885] sysfs_create_dir_ns+0x244/0x264 [ 199.404433][ T5885] kobject_add_internal+0x594/0xc2c [ 199.405395][ T5885] kobject_init_and_add+0x128/0x194 [ 199.406405][ T5885] gfs2_sys_fs_add+0x208/0x428 [ 199.407248][ T5885] gfs2_fill_super+0xe20/0x1a9c [ 199.408161][ T5885] get_tree_bdev+0x35c/0x54c [ 199.408956][ T5885] gfs2_get_tree+0x58/0x1b8 [ 199.409806][ T5885] vfs_get_tree+0x90/0x278 [ 199.410566][ T5885] do_new_mount+0x228/0x804 [ 199.411496][ T5885] path_mount+0x57c/0xfe8 [ 199.412308][ T5885] __arm64_sys_mount+0x488/0x5f8 [ 199.413248][ T5885] invoke_syscall+0x98/0x28c [ 199.414100][ T5885] el0_svc_common+0x13c/0x258 [ 199.414900][ T5885] do_el0_svc+0x5c/0x140 [ 199.415743][ T5885] el0_svc+0x78/0x1d0 [ 199.416533][ T5885] el0t_64_sync_handler+0xcc/0xe4 [ 199.417435][ T5885] el0t_64_sync+0x1a0/0x1a4 [ 199.418779][ T5885] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.421081][ T5885] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.594394][ T5887] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.595801][ T5887] CPU: 1 PID: 5887 Comm: syz.1.582 Not tainted syzkaller #0 [ 199.597064][ T5887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 199.598923][ T5887] Call trace: [ 199.599531][ T5887] dump_backtrace+0x0/0x458 [ 199.600259][ T5887] show_stack+0x2c/0x3c [ 199.600966][ T5887] __dump_stack+0x30/0x40 [ 199.601727][ T5887] dump_stack_lvl+0xf4/0x15c [ 199.602609][ T5887] dump_stack+0x1c/0x5c [ 199.603323][ T5887] sysfs_create_dir_ns+0x244/0x264 [ 199.604246][ T5887] kobject_add_internal+0x594/0xc2c [ 199.605220][ T5887] kobject_init_and_add+0x128/0x194 [ 199.606130][ T5887] gfs2_sys_fs_add+0x208/0x428 [ 199.606884][ T5887] gfs2_fill_super+0xe20/0x1a9c [ 199.607768][ T5887] get_tree_bdev+0x35c/0x54c [ 199.608702][ T5887] gfs2_get_tree+0x58/0x1b8 [ 199.609434][ T5887] vfs_get_tree+0x90/0x278 [ 199.610150][ T5887] do_new_mount+0x228/0x804 [ 199.610879][ T5887] path_mount+0x57c/0xfe8 [ 199.611608][ T5887] __arm64_sys_mount+0x488/0x5f8 [ 199.612471][ T5887] invoke_syscall+0x98/0x28c [ 199.613243][ T5887] el0_svc_common+0x13c/0x258 [ 199.614077][ T5887] do_el0_svc+0x5c/0x140 [ 199.614826][ T5887] el0_svc+0x78/0x1d0 [ 199.615436][ T5887] el0t_64_sync_handler+0xcc/0xe4 [ 199.616295][ T5887] el0t_64_sync+0x1a0/0x1a4 [ 199.617564][ T5887] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.619647][ T5887] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.794393][ T5889] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.795773][ T5889] CPU: 1 PID: 5889 Comm: syz.1.583 Not tainted syzkaller #0 [ 199.796882][ T5889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 199.798701][ T5889] Call trace: [ 199.799257][ T5889] dump_backtrace+0x0/0x458 [ 199.800022][ T5889] show_stack+0x2c/0x3c [ 199.800664][ T5889] __dump_stack+0x30/0x40 [ 199.801321][ T5889] dump_stack_lvl+0xf4/0x15c [ 199.801987][ T5889] dump_stack+0x1c/0x5c [ 199.802631][ T5889] sysfs_create_dir_ns+0x244/0x264 [ 199.803517][ T5889] kobject_add_internal+0x594/0xc2c [ 199.804503][ T5889] kobject_init_and_add+0x128/0x194 [ 199.805434][ T5889] gfs2_sys_fs_add+0x208/0x428 [ 199.806238][ T5889] gfs2_fill_super+0xe20/0x1a9c [ 199.806974][ T5889] get_tree_bdev+0x35c/0x54c [ 199.807721][ T5889] gfs2_get_tree+0x58/0x1b8 [ 199.808375][ T5889] vfs_get_tree+0x90/0x278 [ 199.809072][ T5889] do_new_mount+0x228/0x804 [ 199.809824][ T5889] path_mount+0x57c/0xfe8 [ 199.810561][ T5889] __arm64_sys_mount+0x488/0x5f8 [ 199.811349][ T5889] invoke_syscall+0x98/0x28c [ 199.812142][ T5889] el0_svc_common+0x13c/0x258 [ 199.813064][ T5889] do_el0_svc+0x5c/0x140 [ 199.813753][ T5889] el0_svc+0x78/0x1d0 [ 199.814452][ T5889] el0t_64_sync_handler+0xcc/0xe4 [ 199.819371][ T5889] el0t_64_sync+0x1a0/0x1a4 [ 199.820461][ T5889] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.822818][ T5889] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.964612][ T5891] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.965961][ T5891] CPU: 0 PID: 5891 Comm: syz.1.584 Not tainted syzkaller #0 [ 199.967164][ T5891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 199.968852][ T5891] Call trace: [ 199.969474][ T5891] dump_backtrace+0x0/0x458 [ 199.970289][ T5891] show_stack+0x2c/0x3c [ 199.971005][ T5891] __dump_stack+0x30/0x40 [ 199.971799][ T5891] dump_stack_lvl+0xf4/0x15c [ 199.972643][ T5891] dump_stack+0x1c/0x5c [ 199.973349][ T5891] sysfs_create_dir_ns+0x244/0x264 [ 199.974236][ T5891] kobject_add_internal+0x594/0xc2c [ 199.975101][ T5891] kobject_init_and_add+0x128/0x194 [ 199.976010][ T5891] gfs2_sys_fs_add+0x208/0x428 [ 199.976944][ T5891] gfs2_fill_super+0xe20/0x1a9c [ 199.977773][ T5891] get_tree_bdev+0x35c/0x54c [ 199.978558][ T5891] gfs2_get_tree+0x58/0x1b8 [ 199.979371][ T5891] vfs_get_tree+0x90/0x278 [ 199.980149][ T5891] do_new_mount+0x228/0x804 [ 199.980944][ T5891] path_mount+0x57c/0xfe8 [ 199.981787][ T5891] __arm64_sys_mount+0x488/0x5f8 [ 199.982607][ T5891] invoke_syscall+0x98/0x28c [ 199.983497][ T5891] el0_svc_common+0x13c/0x258 [ 199.984257][ T5891] do_el0_svc+0x5c/0x140 [ 199.985068][ T5891] el0_svc+0x78/0x1d0 [ 199.985757][ T5891] el0t_64_sync_handler+0xcc/0xe4 [ 199.986632][ T5891] el0t_64_sync+0x1a0/0x1a4 [ 199.987519][ T5891] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.989628][ T5891] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:20 executed programs: 570 [ 200.120430][ T5893] set_capacity_and_notify: 16 callbacks suppressed [ 200.120440][ T5893] loop1: detected capacity change from 0 to 32768 [ 200.129111][ T5893] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.130356][ T5893] CPU: 1 PID: 5893 Comm: syz.1.585 Not tainted syzkaller #0 [ 200.131577][ T5893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 200.133181][ T5893] Call trace: [ 200.133712][ T5893] dump_backtrace+0x0/0x458 [ 200.134500][ T5893] show_stack+0x2c/0x3c [ 200.135295][ T5893] __dump_stack+0x30/0x40 [ 200.135997][ T5893] dump_stack_lvl+0xf4/0x15c [ 200.136810][ T5893] dump_stack+0x1c/0x5c [ 200.137511][ T5893] sysfs_create_dir_ns+0x244/0x264 [ 200.138382][ T5893] kobject_add_internal+0x594/0xc2c [ 200.139260][ T5893] kobject_init_and_add+0x128/0x194 [ 200.140078][ T5893] gfs2_sys_fs_add+0x208/0x428 [ 200.140884][ T5893] gfs2_fill_super+0xe20/0x1a9c [ 200.141691][ T5893] get_tree_bdev+0x35c/0x54c [ 200.142426][ T5893] gfs2_get_tree+0x58/0x1b8 [ 200.143141][ T5893] vfs_get_tree+0x90/0x278 [ 200.143822][ T5893] do_new_mount+0x228/0x804 [ 200.144606][ T5893] path_mount+0x57c/0xfe8 [ 200.145313][ T5893] __arm64_sys_mount+0x488/0x5f8 [ 200.146255][ T5893] invoke_syscall+0x98/0x28c [ 200.146970][ T5893] el0_svc_common+0x13c/0x258 [ 200.147703][ T5893] do_el0_svc+0x5c/0x140 [ 200.148398][ T5893] el0_svc+0x78/0x1d0 [ 200.149036][ T5893] el0t_64_sync_handler+0xcc/0xe4 [ 200.149844][ T5893] el0t_64_sync+0x1a0/0x1a4 [ 200.151979][ T5893] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.154389][ T5893] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.291639][ T5896] loop1: detected capacity change from 0 to 32768 [ 200.299091][ T5896] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.300381][ T5896] CPU: 0 PID: 5896 Comm: syz.1.586 Not tainted syzkaller #0 [ 200.301612][ T5896] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 200.303424][ T5896] Call trace: [ 200.304001][ T5896] dump_backtrace+0x0/0x458 [ 200.304824][ T5896] show_stack+0x2c/0x3c [ 200.305549][ T5896] __dump_stack+0x30/0x40 [ 200.306498][ T5896] dump_stack_lvl+0xf4/0x15c [ 200.307523][ T5896] dump_stack+0x1c/0x5c [ 200.308557][ T5896] sysfs_create_dir_ns+0x244/0x264 [ 200.309642][ T5896] kobject_add_internal+0x594/0xc2c [ 200.310588][ T5896] kobject_init_and_add+0x128/0x194 [ 200.311551][ T5896] gfs2_sys_fs_add+0x208/0x428 [ 200.312480][ T5896] gfs2_fill_super+0xe20/0x1a9c [ 200.313326][ T5896] get_tree_bdev+0x35c/0x54c [ 200.314171][ T5896] gfs2_get_tree+0x58/0x1b8 [ 200.314979][ T5896] vfs_get_tree+0x90/0x278 [ 200.315824][ T5896] do_new_mount+0x228/0x804 [ 200.316616][ T5896] path_mount+0x57c/0xfe8 [ 200.317360][ T5896] __arm64_sys_mount+0x488/0x5f8 [ 200.318214][ T5896] invoke_syscall+0x98/0x28c [ 200.319071][ T5896] el0_svc_common+0x13c/0x258 [ 200.320121][ T5896] do_el0_svc+0x5c/0x140 [ 200.320925][ T5896] el0_svc+0x78/0x1d0 [ 200.321656][ T5896] el0t_64_sync_handler+0xcc/0xe4 [ 200.322571][ T5896] el0t_64_sync+0x1a0/0x1a4 [ 200.324256][ T5896] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.326398][ T5896] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.463265][ T5898] loop1: detected capacity change from 0 to 32768 [ 200.515450][ T5898] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.516781][ T5898] CPU: 0 PID: 5898 Comm: syz.1.587 Not tainted syzkaller #0 [ 200.518037][ T5898] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 200.519806][ T5898] Call trace: [ 200.520398][ T5898] dump_backtrace+0x0/0x458 [ 200.521188][ T5898] show_stack+0x2c/0x3c [ 200.521949][ T5898] __dump_stack+0x30/0x40 [ 200.522725][ T5898] dump_stack_lvl+0xf4/0x15c [ 200.523507][ T5898] dump_stack+0x1c/0x5c [ 200.524199][ T5898] sysfs_create_dir_ns+0x244/0x264 [ 200.525091][ T5898] kobject_add_internal+0x594/0xc2c [ 200.525958][ T5898] kobject_init_and_add+0x128/0x194 [ 200.526851][ T5898] gfs2_sys_fs_add+0x208/0x428 [ 200.527724][ T5898] gfs2_fill_super+0xe20/0x1a9c [ 200.528708][ T5898] get_tree_bdev+0x35c/0x54c [ 200.529530][ T5898] gfs2_get_tree+0x58/0x1b8 [ 200.530305][ T5898] vfs_get_tree+0x90/0x278 [ 200.531088][ T5898] do_new_mount+0x228/0x804 [ 200.531863][ T5898] path_mount+0x57c/0xfe8 [ 200.532610][ T5898] __arm64_sys_mount+0x488/0x5f8 [ 200.533466][ T5898] invoke_syscall+0x98/0x28c [ 200.534278][ T5898] el0_svc_common+0x13c/0x258 [ 200.535058][ T5898] do_el0_svc+0x5c/0x140 [ 200.535832][ T5898] el0_svc+0x78/0x1d0 [ 200.536632][ T5898] el0t_64_sync_handler+0xcc/0xe4 [ 200.537557][ T5898] el0t_64_sync+0x1a0/0x1a4 [ 200.542321][ T5898] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.544781][ T5898] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.683579][ T5901] loop1: detected capacity change from 0 to 32768 [ 200.734583][ T5901] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.735843][ T5901] CPU: 0 PID: 5901 Comm: syz.1.588 Not tainted syzkaller #0 [ 200.736942][ T5901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 200.738676][ T5901] Call trace: [ 200.739199][ T5901] dump_backtrace+0x0/0x458 [ 200.739927][ T5901] show_stack+0x2c/0x3c [ 200.740594][ T5901] __dump_stack+0x30/0x40 [ 200.741259][ T5901] dump_stack_lvl+0xf4/0x15c [ 200.742063][ T5901] dump_stack+0x1c/0x5c [ 200.742750][ T5901] sysfs_create_dir_ns+0x244/0x264 [ 200.743667][ T5901] kobject_add_internal+0x594/0xc2c [ 200.744609][ T5901] kobject_init_and_add+0x128/0x194 [ 200.745541][ T5901] gfs2_sys_fs_add+0x208/0x428 [ 200.746480][ T5901] gfs2_fill_super+0xe20/0x1a9c [ 200.747339][ T5901] get_tree_bdev+0x35c/0x54c [ 200.748120][ T5901] gfs2_get_tree+0x58/0x1b8 [ 200.748882][ T5901] vfs_get_tree+0x90/0x278 [ 200.749676][ T5901] do_new_mount+0x228/0x804 [ 200.750462][ T5901] path_mount+0x57c/0xfe8 [ 200.751224][ T5901] __arm64_sys_mount+0x488/0x5f8 [ 200.752134][ T5901] invoke_syscall+0x98/0x28c [ 200.752971][ T5901] el0_svc_common+0x13c/0x258 [ 200.753785][ T5901] do_el0_svc+0x5c/0x140 [ 200.754506][ T5901] el0_svc+0x78/0x1d0 [ 200.755169][ T5901] el0t_64_sync_handler+0xcc/0xe4 [ 200.756066][ T5901] el0t_64_sync+0x1a0/0x1a4 [ 200.757005][ T5901] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.759226][ T5901] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.893643][ T5903] loop1: detected capacity change from 0 to 32768 [ 200.900335][ T5903] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.901580][ T5903] CPU: 1 PID: 5903 Comm: syz.1.589 Not tainted syzkaller #0 [ 200.902860][ T5903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 200.904540][ T5903] Call trace: [ 200.905104][ T5903] dump_backtrace+0x0/0x458 [ 200.905940][ T5903] show_stack+0x2c/0x3c [ 200.906670][ T5903] __dump_stack+0x30/0x40 [ 200.907375][ T5903] dump_stack_lvl+0xf4/0x15c [ 200.908141][ T5903] dump_stack+0x1c/0x5c [ 200.908885][ T5903] sysfs_create_dir_ns+0x244/0x264 [ 200.909679][ T5903] kobject_add_internal+0x594/0xc2c [ 200.910507][ T5903] kobject_init_and_add+0x128/0x194 [ 200.911417][ T5903] gfs2_sys_fs_add+0x208/0x428 [ 200.912175][ T5903] gfs2_fill_super+0xe20/0x1a9c [ 200.912982][ T5903] get_tree_bdev+0x35c/0x54c [ 200.913703][ T5903] gfs2_get_tree+0x58/0x1b8 [ 200.914422][ T5903] vfs_get_tree+0x90/0x278 [ 200.915148][ T5903] do_new_mount+0x228/0x804 [ 200.915928][ T5903] path_mount+0x57c/0xfe8 [ 200.916688][ T5903] __arm64_sys_mount+0x488/0x5f8 [ 200.917639][ T5903] invoke_syscall+0x98/0x28c [ 200.918458][ T5903] el0_svc_common+0x13c/0x258 [ 200.919278][ T5903] do_el0_svc+0x5c/0x140 [ 200.919959][ T5903] el0_svc+0x78/0x1d0 [ 200.920627][ T5903] el0t_64_sync_handler+0xcc/0xe4 [ 200.921479][ T5903] el0t_64_sync+0x1a0/0x1a4 [ 200.923801][ T5903] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.925822][ T5903] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.055077][ T5906] loop1: detected capacity change from 0 to 32768 [ 201.096109][ T5906] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.097479][ T5906] CPU: 0 PID: 5906 Comm: syz.1.590 Not tainted syzkaller #0 [ 201.098598][ T5906] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 201.100134][ T5906] Call trace: [ 201.100672][ T5906] dump_backtrace+0x0/0x458 [ 201.101372][ T5906] show_stack+0x2c/0x3c [ 201.101985][ T5906] __dump_stack+0x30/0x40 [ 201.102647][ T5906] dump_stack_lvl+0xf4/0x15c [ 201.103565][ T5906] dump_stack+0x1c/0x5c [ 201.104295][ T5906] sysfs_create_dir_ns+0x244/0x264 [ 201.105238][ T5906] kobject_add_internal+0x594/0xc2c [ 201.106107][ T5906] kobject_init_and_add+0x128/0x194 [ 201.106960][ T5906] gfs2_sys_fs_add+0x208/0x428 [ 201.107840][ T5906] gfs2_fill_super+0xe20/0x1a9c [ 201.108711][ T5906] get_tree_bdev+0x35c/0x54c [ 201.109523][ T5906] gfs2_get_tree+0x58/0x1b8 [ 201.110276][ T5906] vfs_get_tree+0x90/0x278 [ 201.111038][ T5906] do_new_mount+0x228/0x804 [ 201.111793][ T5906] path_mount+0x57c/0xfe8 [ 201.112597][ T5906] __arm64_sys_mount+0x488/0x5f8 [ 201.113435][ T5906] invoke_syscall+0x98/0x28c [ 201.114273][ T5906] el0_svc_common+0x13c/0x258 [ 201.115073][ T5906] do_el0_svc+0x5c/0x140 [ 201.115841][ T5906] el0_svc+0x78/0x1d0 [ 201.116538][ T5906] el0t_64_sync_handler+0xcc/0xe4 [ 201.117379][ T5906] el0t_64_sync+0x1a0/0x1a4 [ 201.118187][ T5906] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.120331][ T5906] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.257760][ T5909] loop1: detected capacity change from 0 to 32768 [ 201.299492][ T5909] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.300823][ T5909] CPU: 1 PID: 5909 Comm: syz.1.591 Not tainted syzkaller #0 [ 201.302205][ T5909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 201.304041][ T5909] Call trace: [ 201.304645][ T5909] dump_backtrace+0x0/0x458 [ 201.305441][ T5909] show_stack+0x2c/0x3c [ 201.306121][ T5909] __dump_stack+0x30/0x40 [ 201.306802][ T5909] dump_stack_lvl+0xf4/0x15c [ 201.307567][ T5909] dump_stack+0x1c/0x5c [ 201.308317][ T5909] sysfs_create_dir_ns+0x244/0x264 [ 201.309220][ T5909] kobject_add_internal+0x594/0xc2c [ 201.310068][ T5909] kobject_init_and_add+0x128/0x194 [ 201.310962][ T5909] gfs2_sys_fs_add+0x208/0x428 [ 201.311766][ T5909] gfs2_fill_super+0xe20/0x1a9c [ 201.312552][ T5909] get_tree_bdev+0x35c/0x54c [ 201.313319][ T5909] gfs2_get_tree+0x58/0x1b8 [ 201.314184][ T5909] vfs_get_tree+0x90/0x278 [ 201.314890][ T5909] do_new_mount+0x228/0x804 [ 201.315649][ T5909] path_mount+0x57c/0xfe8 [ 201.316382][ T5909] __arm64_sys_mount+0x488/0x5f8 [ 201.317199][ T5909] invoke_syscall+0x98/0x28c [ 201.317975][ T5909] el0_svc_common+0x13c/0x258 [ 201.318785][ T5909] do_el0_svc+0x5c/0x140 [ 201.319540][ T5909] el0_svc+0x78/0x1d0 [ 201.320256][ T5909] el0t_64_sync_handler+0xcc/0xe4 [ 201.321096][ T5909] el0t_64_sync+0x1a0/0x1a4 [ 201.323624][ T5909] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.325675][ T5909] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.504093][ T5911] loop1: detected capacity change from 0 to 32768 [ 201.544158][ T5911] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.545580][ T5911] CPU: 0 PID: 5911 Comm: syz.1.592 Not tainted syzkaller #0 [ 201.546899][ T5911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 201.548656][ T5911] Call trace: [ 201.549249][ T5911] dump_backtrace+0x0/0x458 [ 201.550076][ T5911] show_stack+0x2c/0x3c [ 201.550854][ T5911] __dump_stack+0x30/0x40 [ 201.551630][ T5911] dump_stack_lvl+0xf4/0x15c [ 201.552496][ T5911] dump_stack+0x1c/0x5c [ 201.553301][ T5911] sysfs_create_dir_ns+0x244/0x264 [ 201.554237][ T5911] kobject_add_internal+0x594/0xc2c [ 201.555256][ T5911] kobject_init_and_add+0x128/0x194 [ 201.556210][ T5911] gfs2_sys_fs_add+0x208/0x428 [ 201.557095][ T5911] gfs2_fill_super+0xe20/0x1a9c [ 201.557954][ T5911] get_tree_bdev+0x35c/0x54c [ 201.558780][ T5911] gfs2_get_tree+0x58/0x1b8 [ 201.559549][ T5911] vfs_get_tree+0x90/0x278 [ 201.560313][ T5911] do_new_mount+0x228/0x804 [ 201.561093][ T5911] path_mount+0x57c/0xfe8 [ 201.561869][ T5911] __arm64_sys_mount+0x488/0x5f8 [ 201.562772][ T5911] invoke_syscall+0x98/0x28c [ 201.563594][ T5911] el0_svc_common+0x13c/0x258 [ 201.564373][ T5911] do_el0_svc+0x5c/0x140 [ 201.565179][ T5911] el0_svc+0x78/0x1d0 [ 201.565933][ T5911] el0t_64_sync_handler+0xcc/0xe4 [ 201.566866][ T5911] el0t_64_sync+0x1a0/0x1a4 [ 201.569553][ T5911] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.571900][ T5911] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.701042][ T5913] loop1: detected capacity change from 0 to 32768 [ 201.758792][ T5913] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.760097][ T5913] CPU: 0 PID: 5913 Comm: syz.1.593 Not tainted syzkaller #0 [ 201.761293][ T5913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 201.762982][ T5913] Call trace: [ 201.763576][ T5913] dump_backtrace+0x0/0x458 [ 201.764415][ T5913] show_stack+0x2c/0x3c [ 201.765192][ T5913] __dump_stack+0x30/0x40 [ 201.765945][ T5913] dump_stack_lvl+0xf4/0x15c [ 201.766871][ T5913] dump_stack+0x1c/0x5c [ 201.767753][ T5913] sysfs_create_dir_ns+0x244/0x264 [ 201.768632][ T5913] kobject_add_internal+0x594/0xc2c [ 201.769471][ T5913] kobject_init_and_add+0x128/0x194 [ 201.770350][ T5913] gfs2_sys_fs_add+0x208/0x428 [ 201.771211][ T5913] gfs2_fill_super+0xe20/0x1a9c [ 201.772048][ T5913] get_tree_bdev+0x35c/0x54c [ 201.772821][ T5913] gfs2_get_tree+0x58/0x1b8 [ 201.773634][ T5913] vfs_get_tree+0x90/0x278 [ 201.774506][ T5913] do_new_mount+0x228/0x804 [ 201.775358][ T5913] path_mount+0x57c/0xfe8 [ 201.776207][ T5913] __arm64_sys_mount+0x488/0x5f8 [ 201.777065][ T5913] invoke_syscall+0x98/0x28c [ 201.777893][ T5913] el0_svc_common+0x13c/0x258 [ 201.778731][ T5913] do_el0_svc+0x5c/0x140 [ 201.779487][ T5913] el0_svc+0x78/0x1d0 [ 201.780196][ T5913] el0t_64_sync_handler+0xcc/0xe4 [ 201.781157][ T5913] el0t_64_sync+0x1a0/0x1a4 [ 201.782061][ T5913] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.785654][ T5913] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.920818][ T5915] loop1: detected capacity change from 0 to 32768 [ 201.928495][ T5915] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.929946][ T5915] CPU: 0 PID: 5915 Comm: syz.1.594 Not tainted syzkaller #0 [ 201.931249][ T5915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 201.932966][ T5915] Call trace: [ 201.933589][ T5915] dump_backtrace+0x0/0x458 [ 201.934401][ T5915] show_stack+0x2c/0x3c [ 201.935134][ T5915] __dump_stack+0x30/0x40 [ 201.935843][ T5915] dump_stack_lvl+0xf4/0x15c [ 201.936671][ T5915] dump_stack+0x1c/0x5c [ 201.937407][ T5915] sysfs_create_dir_ns+0x244/0x264 [ 201.938363][ T5915] kobject_add_internal+0x594/0xc2c [ 201.939281][ T5915] kobject_init_and_add+0x128/0x194 [ 201.940203][ T5915] gfs2_sys_fs_add+0x208/0x428 [ 201.940980][ T5915] gfs2_fill_super+0xe20/0x1a9c [ 201.941808][ T5915] get_tree_bdev+0x35c/0x54c [ 201.942590][ T5915] gfs2_get_tree+0x58/0x1b8 [ 201.943429][ T5915] vfs_get_tree+0x90/0x278 [ 201.944176][ T5915] do_new_mount+0x228/0x804 [ 201.944964][ T5915] path_mount+0x57c/0xfe8 [ 201.945741][ T5915] __arm64_sys_mount+0x488/0x5f8 [ 201.946590][ T5915] invoke_syscall+0x98/0x28c [ 201.947414][ T5915] el0_svc_common+0x13c/0x258 [ 201.948142][ T5915] do_el0_svc+0x5c/0x140 [ 201.948880][ T5915] el0_svc+0x78/0x1d0 [ 201.949546][ T5915] el0t_64_sync_handler+0xcc/0xe4 [ 201.950427][ T5915] el0t_64_sync+0x1a0/0x1a4 [ 201.952681][ T5915] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.954837][ T5915] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.144076][ T5917] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.145373][ T5917] CPU: 0 PID: 5917 Comm: syz.1.595 Not tainted syzkaller #0 [ 202.146588][ T5917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 202.148235][ T5917] Call trace: [ 202.148767][ T5917] dump_backtrace+0x0/0x458 [ 202.149516][ T5917] show_stack+0x2c/0x3c [ 202.150179][ T5917] __dump_stack+0x30/0x40 [ 202.150909][ T5917] dump_stack_lvl+0xf4/0x15c [ 202.151671][ T5917] dump_stack+0x1c/0x5c [ 202.152366][ T5917] sysfs_create_dir_ns+0x244/0x264 [ 202.153290][ T5917] kobject_add_internal+0x594/0xc2c [ 202.154327][ T5917] kobject_init_and_add+0x128/0x194 [ 202.155210][ T5917] gfs2_sys_fs_add+0x208/0x428 [ 202.156057][ T5917] gfs2_fill_super+0xe20/0x1a9c [ 202.156937][ T5917] get_tree_bdev+0x35c/0x54c [ 202.157723][ T5917] gfs2_get_tree+0x58/0x1b8 [ 202.158544][ T5917] vfs_get_tree+0x90/0x278 [ 202.159307][ T5917] do_new_mount+0x228/0x804 [ 202.160153][ T5917] path_mount+0x57c/0xfe8 [ 202.160871][ T5917] __arm64_sys_mount+0x488/0x5f8 [ 202.161721][ T5917] invoke_syscall+0x98/0x28c [ 202.162546][ T5917] el0_svc_common+0x13c/0x258 [ 202.163361][ T5917] do_el0_svc+0x5c/0x140 [ 202.164132][ T5917] el0_svc+0x78/0x1d0 [ 202.164828][ T5917] el0t_64_sync_handler+0xcc/0xe4 [ 202.165717][ T5917] el0t_64_sync+0x1a0/0x1a4 [ 202.168212][ T5917] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.170492][ T5917] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.313069][ T5920] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.314490][ T5920] CPU: 1 PID: 5920 Comm: syz.1.596 Not tainted syzkaller #0 [ 202.315765][ T5920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 202.317495][ T5920] Call trace: [ 202.318034][ T5920] dump_backtrace+0x0/0x458 [ 202.318850][ T5920] show_stack+0x2c/0x3c [ 202.319615][ T5920] __dump_stack+0x30/0x40 [ 202.320343][ T5920] dump_stack_lvl+0xf4/0x15c [ 202.321116][ T5920] dump_stack+0x1c/0x5c [ 202.321970][ T5920] sysfs_create_dir_ns+0x244/0x264 [ 202.322852][ T5920] kobject_add_internal+0x594/0xc2c [ 202.323721][ T5920] kobject_init_and_add+0x128/0x194 [ 202.324644][ T5920] gfs2_sys_fs_add+0x208/0x428 [ 202.325500][ T5920] gfs2_fill_super+0xe20/0x1a9c [ 202.326303][ T5920] get_tree_bdev+0x35c/0x54c [ 202.327179][ T5920] gfs2_get_tree+0x58/0x1b8 [ 202.327938][ T5920] vfs_get_tree+0x90/0x278 [ 202.328696][ T5920] do_new_mount+0x228/0x804 [ 202.329458][ T5920] path_mount+0x57c/0xfe8 [ 202.330167][ T5920] __arm64_sys_mount+0x488/0x5f8 [ 202.330997][ T5920] invoke_syscall+0x98/0x28c [ 202.331778][ T5920] el0_svc_common+0x13c/0x258 [ 202.332569][ T5920] do_el0_svc+0x5c/0x140 [ 202.333289][ T5920] el0_svc+0x78/0x1d0 [ 202.333943][ T5920] el0t_64_sync_handler+0xcc/0xe4 [ 202.334831][ T5920] el0t_64_sync+0x1a0/0x1a4 [ 202.335808][ T5920] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.338017][ T5920] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.514057][ T5922] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.515548][ T5922] CPU: 0 PID: 5922 Comm: syz.1.597 Not tainted syzkaller #0 [ 202.516726][ T5922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 202.518351][ T5922] Call trace: [ 202.518870][ T5922] dump_backtrace+0x0/0x458 [ 202.519589][ T5922] show_stack+0x2c/0x3c [ 202.520290][ T5922] __dump_stack+0x30/0x40 [ 202.520988][ T5922] dump_stack_lvl+0xf4/0x15c [ 202.521769][ T5922] dump_stack+0x1c/0x5c [ 202.522417][ T5922] sysfs_create_dir_ns+0x244/0x264 [ 202.523355][ T5922] kobject_add_internal+0x594/0xc2c [ 202.524280][ T5922] kobject_init_and_add+0x128/0x194 [ 202.525192][ T5922] gfs2_sys_fs_add+0x208/0x428 [ 202.526044][ T5922] gfs2_fill_super+0xe20/0x1a9c [ 202.526883][ T5922] get_tree_bdev+0x35c/0x54c [ 202.527639][ T5922] gfs2_get_tree+0x58/0x1b8 [ 202.528421][ T5922] vfs_get_tree+0x90/0x278 [ 202.529124][ T5922] do_new_mount+0x228/0x804 [ 202.529911][ T5922] path_mount+0x57c/0xfe8 [ 202.530711][ T5922] __arm64_sys_mount+0x488/0x5f8 [ 202.531574][ T5922] invoke_syscall+0x98/0x28c [ 202.532476][ T5922] el0_svc_common+0x13c/0x258 [ 202.533333][ T5922] do_el0_svc+0x5c/0x140 [ 202.534109][ T5922] el0_svc+0x78/0x1d0 [ 202.534798][ T5922] el0t_64_sync_handler+0xcc/0xe4 [ 202.535784][ T5922] el0t_64_sync+0x1a0/0x1a4 [ 202.537995][ T5922] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.540283][ T5922] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.695541][ T5924] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.696996][ T5924] CPU: 1 PID: 5924 Comm: syz.1.598 Not tainted syzkaller #0 [ 202.698234][ T5924] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 202.699903][ T5924] Call trace: [ 202.700467][ T5924] dump_backtrace+0x0/0x458 [ 202.701210][ T5924] show_stack+0x2c/0x3c [ 202.701859][ T5924] __dump_stack+0x30/0x40 [ 202.702557][ T5924] dump_stack_lvl+0xf4/0x15c [ 202.703355][ T5924] dump_stack+0x1c/0x5c [ 202.704056][ T5924] sysfs_create_dir_ns+0x244/0x264 [ 202.704910][ T5924] kobject_add_internal+0x594/0xc2c [ 202.705788][ T5924] kobject_init_and_add+0x128/0x194 [ 202.706654][ T5924] gfs2_sys_fs_add+0x208/0x428 [ 202.707435][ T5924] gfs2_fill_super+0xe20/0x1a9c [ 202.708223][ T5924] get_tree_bdev+0x35c/0x54c [ 202.708970][ T5924] gfs2_get_tree+0x58/0x1b8 [ 202.709769][ T5924] vfs_get_tree+0x90/0x278 [ 202.710520][ T5924] do_new_mount+0x228/0x804 [ 202.711274][ T5924] path_mount+0x57c/0xfe8 [ 202.711979][ T5924] __arm64_sys_mount+0x488/0x5f8 [ 202.712786][ T5924] invoke_syscall+0x98/0x28c [ 202.713573][ T5924] el0_svc_common+0x13c/0x258 [ 202.714374][ T5924] do_el0_svc+0x5c/0x140 [ 202.715076][ T5924] el0_svc+0x78/0x1d0 [ 202.715773][ T5924] el0t_64_sync_handler+0xcc/0xe4 [ 202.716653][ T5924] el0t_64_sync+0x1a0/0x1a4 [ 202.717474][ T5924] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.719525][ T5924] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.894089][ T5926] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.895639][ T5926] CPU: 0 PID: 5926 Comm: syz.1.599 Not tainted syzkaller #0 [ 202.896891][ T5926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 202.898602][ T5926] Call trace: [ 202.899179][ T5926] dump_backtrace+0x0/0x458 [ 202.900065][ T5926] show_stack+0x2c/0x3c [ 202.900806][ T5926] __dump_stack+0x30/0x40 [ 202.901629][ T5926] dump_stack_lvl+0xf4/0x15c [ 202.902521][ T5926] dump_stack+0x1c/0x5c [ 202.903317][ T5926] sysfs_create_dir_ns+0x244/0x264 [ 202.904245][ T5926] kobject_add_internal+0x594/0xc2c [ 202.905270][ T5926] kobject_init_and_add+0x128/0x194 [ 202.906232][ T5926] gfs2_sys_fs_add+0x208/0x428 [ 202.907102][ T5926] gfs2_fill_super+0xe20/0x1a9c [ 202.907987][ T5926] get_tree_bdev+0x35c/0x54c [ 202.908811][ T5926] gfs2_get_tree+0x58/0x1b8 [ 202.909735][ T5926] vfs_get_tree+0x90/0x278 [ 202.910613][ T5926] do_new_mount+0x228/0x804 [ 202.911451][ T5926] path_mount+0x57c/0xfe8 [ 202.912239][ T5926] __arm64_sys_mount+0x488/0x5f8 [ 202.913121][ T5926] invoke_syscall+0x98/0x28c [ 202.913954][ T5926] el0_svc_common+0x13c/0x258 [ 202.914785][ T5926] do_el0_svc+0x5c/0x140 [ 202.915538][ T5926] el0_svc+0x78/0x1d0 [ 202.916185][ T5926] el0t_64_sync_handler+0xcc/0xe4 [ 202.917099][ T5926] el0t_64_sync+0x1a0/0x1a4 [ 202.918139][ T5926] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.920348][ T5926] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.129078][ T5928] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.130616][ T5928] CPU: 0 PID: 5928 Comm: syz.1.600 Not tainted syzkaller #0 [ 203.131843][ T5928] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 203.133779][ T5928] Call trace: [ 203.134373][ T5928] dump_backtrace+0x0/0x458 [ 203.135328][ T5928] show_stack+0x2c/0x3c [ 203.136107][ T5928] __dump_stack+0x30/0x40 [ 203.136879][ T5928] dump_stack_lvl+0xf4/0x15c [ 203.137673][ T5928] dump_stack+0x1c/0x5c [ 203.138390][ T5928] sysfs_create_dir_ns+0x244/0x264 [ 203.139307][ T5928] kobject_add_internal+0x594/0xc2c [ 203.140261][ T5928] kobject_init_and_add+0x128/0x194 [ 203.141160][ T5928] gfs2_sys_fs_add+0x208/0x428 [ 203.141993][ T5928] gfs2_fill_super+0xe20/0x1a9c [ 203.142848][ T5928] get_tree_bdev+0x35c/0x54c [ 203.143653][ T5928] gfs2_get_tree+0x58/0x1b8 [ 203.144443][ T5928] vfs_get_tree+0x90/0x278 [ 203.145175][ T5928] do_new_mount+0x228/0x804 [ 203.146046][ T5928] path_mount+0x57c/0xfe8 [ 203.146767][ T5928] __arm64_sys_mount+0x488/0x5f8 [ 203.147607][ T5928] invoke_syscall+0x98/0x28c [ 203.148359][ T5928] el0_svc_common+0x13c/0x258 [ 203.149158][ T5928] do_el0_svc+0x5c/0x140 [ 203.149912][ T5928] el0_svc+0x78/0x1d0 [ 203.150629][ T5928] el0t_64_sync_handler+0xcc/0xe4 [ 203.151474][ T5928] el0t_64_sync+0x1a0/0x1a4 [ 203.152492][ T5928] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.155044][ T5928] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.379421][ T5930] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.380847][ T5930] CPU: 1 PID: 5930 Comm: syz.1.601 Not tainted syzkaller #0 [ 203.382212][ T5930] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 203.383946][ T5930] Call trace: [ 203.384519][ T5930] dump_backtrace+0x0/0x458 [ 203.385338][ T5930] show_stack+0x2c/0x3c [ 203.386016][ T5930] __dump_stack+0x30/0x40 [ 203.386717][ T5930] dump_stack_lvl+0xf4/0x15c [ 203.387528][ T5930] dump_stack+0x1c/0x5c [ 203.388232][ T5930] sysfs_create_dir_ns+0x244/0x264 [ 203.389114][ T5930] kobject_add_internal+0x594/0xc2c [ 203.390029][ T5930] kobject_init_and_add+0x128/0x194 [ 203.390908][ T5930] gfs2_sys_fs_add+0x208/0x428 [ 203.391671][ T5930] gfs2_fill_super+0xe20/0x1a9c [ 203.392507][ T5930] get_tree_bdev+0x35c/0x54c [ 203.393270][ T5930] gfs2_get_tree+0x58/0x1b8 [ 203.394113][ T5930] vfs_get_tree+0x90/0x278 [ 203.394824][ T5930] do_new_mount+0x228/0x804 [ 203.395577][ T5930] path_mount+0x57c/0xfe8 [ 203.396347][ T5930] __arm64_sys_mount+0x488/0x5f8 [ 203.397200][ T5930] invoke_syscall+0x98/0x28c [ 203.398007][ T5930] el0_svc_common+0x13c/0x258 [ 203.398809][ T5930] do_el0_svc+0x5c/0x140 [ 203.399470][ T5930] el0_svc+0x78/0x1d0 [ 203.400124][ T5930] el0t_64_sync_handler+0xcc/0xe4 [ 203.400926][ T5930] el0t_64_sync+0x1a0/0x1a4 [ 203.403625][ T5930] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.405825][ T5930] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.618341][ T5932] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.619747][ T5932] CPU: 0 PID: 5932 Comm: syz.1.602 Not tainted syzkaller #0 [ 203.621096][ T5932] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 203.623000][ T5932] Call trace: [ 203.623655][ T5932] dump_backtrace+0x0/0x458 [ 203.624514][ T5932] show_stack+0x2c/0x3c [ 203.625305][ T5932] __dump_stack+0x30/0x40 [ 203.626143][ T5932] dump_stack_lvl+0xf4/0x15c [ 203.626973][ T5932] dump_stack+0x1c/0x5c [ 203.627791][ T5932] sysfs_create_dir_ns+0x244/0x264 [ 203.628762][ T5932] kobject_add_internal+0x594/0xc2c [ 203.629647][ T5932] kobject_init_and_add+0x128/0x194 [ 203.630562][ T5932] gfs2_sys_fs_add+0x208/0x428 [ 203.631382][ T5932] gfs2_fill_super+0xe20/0x1a9c [ 203.632240][ T5932] get_tree_bdev+0x35c/0x54c [ 203.633064][ T5932] gfs2_get_tree+0x58/0x1b8 [ 203.633881][ T5932] vfs_get_tree+0x90/0x278 [ 203.634633][ T5932] do_new_mount+0x228/0x804 [ 203.635373][ T5932] path_mount+0x57c/0xfe8 [ 203.636157][ T5932] __arm64_sys_mount+0x488/0x5f8 [ 203.636977][ T5932] invoke_syscall+0x98/0x28c [ 203.637769][ T5932] el0_svc_common+0x13c/0x258 [ 203.638571][ T5932] do_el0_svc+0x5c/0x140 [ 203.639328][ T5932] el0_svc+0x78/0x1d0 [ 203.640048][ T5932] el0t_64_sync_handler+0xcc/0xe4 [ 203.640936][ T5932] el0t_64_sync+0x1a0/0x1a4 [ 203.642292][ T5932] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.644773][ T5932] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.786782][ T5934] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.788186][ T5934] CPU: 0 PID: 5934 Comm: syz.1.603 Not tainted syzkaller #0 [ 203.789509][ T5934] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 203.791480][ T5934] Call trace: [ 203.792013][ T5934] dump_backtrace+0x0/0x458 [ 203.792898][ T5934] show_stack+0x2c/0x3c [ 203.793805][ T5934] __dump_stack+0x30/0x40 [ 203.794633][ T5934] dump_stack_lvl+0xf4/0x15c [ 203.795515][ T5934] dump_stack+0x1c/0x5c [ 203.796283][ T5934] sysfs_create_dir_ns+0x244/0x264 [ 203.797216][ T5934] kobject_add_internal+0x594/0xc2c [ 203.798317][ T5934] kobject_init_and_add+0x128/0x194 [ 203.799533][ T5934] gfs2_sys_fs_add+0x208/0x428 [ 203.800381][ T5934] gfs2_fill_super+0xe20/0x1a9c [ 203.801327][ T5934] get_tree_bdev+0x35c/0x54c [ 203.802164][ T5934] gfs2_get_tree+0x58/0x1b8 [ 203.803013][ T5934] vfs_get_tree+0x90/0x278 [ 203.803799][ T5934] do_new_mount+0x228/0x804 [ 203.804625][ T5934] path_mount+0x57c/0xfe8 [ 203.805485][ T5934] __arm64_sys_mount+0x488/0x5f8 [ 203.806477][ T5934] invoke_syscall+0x98/0x28c [ 203.807350][ T5934] el0_svc_common+0x13c/0x258 [ 203.808224][ T5934] do_el0_svc+0x5c/0x140 [ 203.808999][ T5934] el0_svc+0x78/0x1d0 [ 203.809703][ T5934] el0t_64_sync_handler+0xcc/0xe4 [ 203.810630][ T5934] el0t_64_sync+0x1a0/0x1a4 [ 203.811677][ T5934] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.813882][ T5934] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.964090][ T5936] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.965441][ T5936] CPU: 1 PID: 5936 Comm: syz.1.604 Not tainted syzkaller #0 [ 203.966534][ T5936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 203.968102][ T5936] Call trace: [ 203.968646][ T5936] dump_backtrace+0x0/0x458 [ 203.969327][ T5936] show_stack+0x2c/0x3c [ 203.970011][ T5936] __dump_stack+0x30/0x40 [ 203.970686][ T5936] dump_stack_lvl+0xf4/0x15c [ 203.971438][ T5936] dump_stack+0x1c/0x5c [ 203.972135][ T5936] sysfs_create_dir_ns+0x244/0x264 [ 203.973027][ T5936] kobject_add_internal+0x594/0xc2c [ 203.973915][ T5936] kobject_init_and_add+0x128/0x194 [ 203.974838][ T5936] gfs2_sys_fs_add+0x208/0x428 [ 203.975614][ T5936] gfs2_fill_super+0xe20/0x1a9c [ 203.976451][ T5936] get_tree_bdev+0x35c/0x54c [ 203.977227][ T5936] gfs2_get_tree+0x58/0x1b8 [ 203.978053][ T5936] vfs_get_tree+0x90/0x278 [ 203.978785][ T5936] do_new_mount+0x228/0x804 [ 203.979511][ T5936] path_mount+0x57c/0xfe8 [ 203.980264][ T5936] __arm64_sys_mount+0x488/0x5f8 [ 203.981096][ T5936] invoke_syscall+0x98/0x28c [ 203.981873][ T5936] el0_svc_common+0x13c/0x258 [ 203.982731][ T5936] do_el0_svc+0x5c/0x140 [ 203.983472][ T5936] el0_svc+0x78/0x1d0 [ 203.984141][ T5936] el0t_64_sync_handler+0xcc/0xe4 [ 203.985015][ T5936] el0t_64_sync+0x1a0/0x1a4 [ 203.987376][ T5936] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.989350][ T5936] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.129410][ T5938] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.130771][ T5938] CPU: 0 PID: 5938 Comm: syz.1.605 Not tainted syzkaller #0 [ 204.132034][ T5938] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 204.133835][ T5938] Call trace: [ 204.134427][ T5938] dump_backtrace+0x0/0x458 [ 204.135273][ T5938] show_stack+0x2c/0x3c [ 204.135975][ T5938] __dump_stack+0x30/0x40 [ 204.136734][ T5938] dump_stack_lvl+0xf4/0x15c [ 204.137547][ T5938] dump_stack+0x1c/0x5c [ 204.138315][ T5938] sysfs_create_dir_ns+0x244/0x264 [ 204.139268][ T5938] kobject_add_internal+0x594/0xc2c [ 204.140209][ T5938] kobject_init_and_add+0x128/0x194 [ 204.141159][ T5938] gfs2_sys_fs_add+0x208/0x428 [ 204.141980][ T5938] gfs2_fill_super+0xe20/0x1a9c [ 204.142860][ T5938] get_tree_bdev+0x35c/0x54c [ 204.143707][ T5938] gfs2_get_tree+0x58/0x1b8 [ 204.144654][ T5938] vfs_get_tree+0x90/0x278 [ 204.145408][ T5938] do_new_mount+0x228/0x804 [ 204.146254][ T5938] path_mount+0x57c/0xfe8 [ 204.147060][ T5938] __arm64_sys_mount+0x488/0x5f8 [ 204.147949][ T5938] invoke_syscall+0x98/0x28c [ 204.148695][ T5938] el0_svc_common+0x13c/0x258 [ 204.149510][ T5938] do_el0_svc+0x5c/0x140 [ 204.150238][ T5938] el0_svc+0x78/0x1d0 [ 204.150934][ T5938] el0t_64_sync_handler+0xcc/0xe4 [ 204.151807][ T5938] el0t_64_sync+0x1a0/0x1a4 [ 204.154185][ T5938] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.156338][ T5938] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.324240][ T5940] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.325618][ T5940] CPU: 0 PID: 5940 Comm: syz.1.606 Not tainted syzkaller #0 [ 204.326826][ T5940] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 204.328472][ T5940] Call trace: [ 204.329022][ T5940] dump_backtrace+0x0/0x458 [ 204.329727][ T5940] show_stack+0x2c/0x3c [ 204.330370][ T5940] __dump_stack+0x30/0x40 [ 204.331053][ T5940] dump_stack_lvl+0xf4/0x15c [ 204.331795][ T5940] dump_stack+0x1c/0x5c [ 204.332507][ T5940] sysfs_create_dir_ns+0x244/0x264 [ 204.333389][ T5940] kobject_add_internal+0x594/0xc2c [ 204.334292][ T5940] kobject_init_and_add+0x128/0x194 [ 204.335439][ T5940] gfs2_sys_fs_add+0x208/0x428 [ 204.336312][ T5940] gfs2_fill_super+0xe20/0x1a9c [ 204.337231][ T5940] get_tree_bdev+0x35c/0x54c [ 204.338011][ T5940] gfs2_get_tree+0x58/0x1b8 [ 204.338802][ T5940] vfs_get_tree+0x90/0x278 [ 204.339562][ T5940] do_new_mount+0x228/0x804 [ 204.340363][ T5940] path_mount+0x57c/0xfe8 [ 204.341167][ T5940] __arm64_sys_mount+0x488/0x5f8 [ 204.342075][ T5940] invoke_syscall+0x98/0x28c [ 204.342843][ T5940] el0_svc_common+0x13c/0x258 [ 204.343704][ T5940] do_el0_svc+0x5c/0x140 [ 204.344457][ T5940] el0_svc+0x78/0x1d0 [ 204.345158][ T5940] el0t_64_sync_handler+0xcc/0xe4 [ 204.346026][ T5940] el0t_64_sync+0x1a0/0x1a4 [ 204.348286][ T5940] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.350575][ T5940] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.492219][ T5942] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.493746][ T5942] CPU: 1 PID: 5942 Comm: syz.1.607 Not tainted syzkaller #0 [ 204.494979][ T5942] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 204.496711][ T5942] Call trace: [ 204.497164][ T5942] dump_backtrace+0x0/0x458 [ 204.497881][ T5942] show_stack+0x2c/0x3c [ 204.498555][ T5942] __dump_stack+0x30/0x40 [ 204.499260][ T5942] dump_stack_lvl+0xf4/0x15c [ 204.500139][ T5942] dump_stack+0x1c/0x5c [ 204.500871][ T5942] sysfs_create_dir_ns+0x244/0x264 [ 204.501810][ T5942] kobject_add_internal+0x594/0xc2c [ 204.502673][ T5942] kobject_init_and_add+0x128/0x194 [ 204.503596][ T5942] gfs2_sys_fs_add+0x208/0x428 [ 204.504377][ T5942] gfs2_fill_super+0xe20/0x1a9c [ 204.505203][ T5942] get_tree_bdev+0x35c/0x54c [ 204.505921][ T5942] gfs2_get_tree+0x58/0x1b8 [ 204.506807][ T5942] vfs_get_tree+0x90/0x278 [ 204.507598][ T5942] do_new_mount+0x228/0x804 [ 204.508318][ T5942] path_mount+0x57c/0xfe8 [ 204.509064][ T5942] __arm64_sys_mount+0x488/0x5f8 [ 204.509864][ T5942] invoke_syscall+0x98/0x28c [ 204.510673][ T5942] el0_svc_common+0x13c/0x258 [ 204.511477][ T5942] do_el0_svc+0x5c/0x140 [ 204.512214][ T5942] el0_svc+0x78/0x1d0 [ 204.512902][ T5942] el0t_64_sync_handler+0xcc/0xe4 [ 204.513875][ T5942] el0t_64_sync+0x1a0/0x1a4 [ 204.515079][ T5942] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.517510][ T5942] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.704139][ T5944] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.706217][ T5944] CPU: 0 PID: 5944 Comm: syz.1.608 Not tainted syzkaller #0 [ 204.707406][ T5944] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 204.708985][ T5944] Call trace: [ 204.709501][ T5944] dump_backtrace+0x0/0x458 [ 204.710245][ T5944] show_stack+0x2c/0x3c [ 204.710951][ T5944] __dump_stack+0x30/0x40 [ 204.711666][ T5944] dump_stack_lvl+0xf4/0x15c [ 204.712366][ T5944] dump_stack+0x1c/0x5c [ 204.713060][ T5944] sysfs_create_dir_ns+0x244/0x264 [ 204.713951][ T5944] kobject_add_internal+0x594/0xc2c [ 204.714842][ T5944] kobject_init_and_add+0x128/0x194 [ 204.715798][ T5944] gfs2_sys_fs_add+0x208/0x428 [ 204.716614][ T5944] gfs2_fill_super+0xe20/0x1a9c [ 204.717472][ T5944] get_tree_bdev+0x35c/0x54c [ 204.718246][ T5944] gfs2_get_tree+0x58/0x1b8 [ 204.719013][ T5944] vfs_get_tree+0x90/0x278 [ 204.719730][ T5944] do_new_mount+0x228/0x804 [ 204.720521][ T5944] path_mount+0x57c/0xfe8 [ 204.721258][ T5944] __arm64_sys_mount+0x488/0x5f8 [ 204.722086][ T5944] invoke_syscall+0x98/0x28c [ 204.722867][ T5944] el0_svc_common+0x13c/0x258 [ 204.723691][ T5944] do_el0_svc+0x5c/0x140 [ 204.724384][ T5944] el0_svc+0x78/0x1d0 [ 204.725189][ T5944] el0t_64_sync_handler+0xcc/0xe4 [ 204.726076][ T5944] el0t_64_sync+0x1a0/0x1a4 [ 204.728561][ T5944] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.730704][ T5944] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.822837][ T4184] Bluetooth: hci1: command 0x0406 tx timeout [ 204.907277][ T5946] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.908565][ T5946] CPU: 0 PID: 5946 Comm: syz.1.609 Not tainted syzkaller #0 [ 204.909900][ T5946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 204.911645][ T5946] Call trace: [ 204.912330][ T5946] dump_backtrace+0x0/0x458 [ 204.913203][ T5946] show_stack+0x2c/0x3c [ 204.914055][ T5946] __dump_stack+0x30/0x40 [ 204.914978][ T5946] dump_stack_lvl+0xf4/0x15c [ 204.915917][ T5946] dump_stack+0x1c/0x5c [ 204.916707][ T5946] sysfs_create_dir_ns+0x244/0x264 [ 204.917632][ T5946] kobject_add_internal+0x594/0xc2c [ 204.918523][ T5946] kobject_init_and_add+0x128/0x194 [ 204.919433][ T5946] gfs2_sys_fs_add+0x208/0x428 [ 204.920251][ T5946] gfs2_fill_super+0xe20/0x1a9c [ 204.921091][ T5946] get_tree_bdev+0x35c/0x54c [ 204.921861][ T5946] gfs2_get_tree+0x58/0x1b8 [ 204.922691][ T5946] vfs_get_tree+0x90/0x278 [ 204.923474][ T5946] do_new_mount+0x228/0x804 [ 204.924263][ T5946] path_mount+0x57c/0xfe8 [ 204.925030][ T5946] __arm64_sys_mount+0x488/0x5f8 [ 204.925910][ T5946] invoke_syscall+0x98/0x28c [ 204.926712][ T5946] el0_svc_common+0x13c/0x258 [ 204.927549][ T5946] do_el0_svc+0x5c/0x140 [ 204.928312][ T5946] el0_svc+0x78/0x1d0 [ 204.928970][ T5946] el0t_64_sync_handler+0xcc/0xe4 [ 204.929851][ T5946] el0t_64_sync+0x1a0/0x1a4 [ 204.932170][ T5946] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.934872][ T5946] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.074987][ T5948] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.076366][ T5948] CPU: 1 PID: 5948 Comm: syz.1.610 Not tainted syzkaller #0 [ 205.077473][ T5948] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 205.078928][ T5948] Call trace: [ 205.079423][ T5948] dump_backtrace+0x0/0x458 [ 205.080139][ T5948] show_stack+0x2c/0x3c [ 205.080754][ T5948] __dump_stack+0x30/0x40 [ 205.081423][ T5948] dump_stack_lvl+0xf4/0x15c [ 205.082237][ T5948] dump_stack+0x1c/0x5c [ 205.082955][ T5948] sysfs_create_dir_ns+0x244/0x264 [ 205.083771][ T5948] kobject_add_internal+0x594/0xc2c [ 205.084652][ T5948] kobject_init_and_add+0x128/0x194 [ 205.085469][ T5948] gfs2_sys_fs_add+0x208/0x428 [ 205.086277][ T5948] gfs2_fill_super+0xe20/0x1a9c [ 205.087134][ T5948] get_tree_bdev+0x35c/0x54c [ 205.087935][ T5948] gfs2_get_tree+0x58/0x1b8 [ 205.088666][ T5948] vfs_get_tree+0x90/0x278 [ 205.089457][ T5948] do_new_mount+0x228/0x804 [ 205.090203][ T5948] path_mount+0x57c/0xfe8 [ 205.090916][ T5948] __arm64_sys_mount+0x488/0x5f8 [ 205.091678][ T5948] invoke_syscall+0x98/0x28c [ 205.092429][ T5948] el0_svc_common+0x13c/0x258 [ 205.093179][ T5948] do_el0_svc+0x5c/0x140 [ 205.093879][ T5948] el0_svc+0x78/0x1d0 [ 205.094548][ T5948] el0t_64_sync_handler+0xcc/0xe4 [ 205.095402][ T5948] el0t_64_sync+0x1a0/0x1a4 [ 205.096234][ T5948] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.098247][ T5948] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:25 executed programs: 596 [ 205.234489][ T5950] set_capacity_and_notify: 16 callbacks suppressed [ 205.234499][ T5950] loop1: detected capacity change from 0 to 32768 [ 205.242893][ T5950] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.244079][ T5950] CPU: 1 PID: 5950 Comm: syz.1.611 Not tainted syzkaller #0 [ 205.245203][ T5950] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 205.246851][ T5950] Call trace: [ 205.247399][ T5950] dump_backtrace+0x0/0x458 [ 205.248173][ T5950] show_stack+0x2c/0x3c [ 205.248865][ T5950] __dump_stack+0x30/0x40 [ 205.249647][ T5950] dump_stack_lvl+0xf4/0x15c [ 205.250426][ T5950] dump_stack+0x1c/0x5c [ 205.251142][ T5950] sysfs_create_dir_ns+0x244/0x264 [ 205.252031][ T5950] kobject_add_internal+0x594/0xc2c [ 205.252860][ T5950] kobject_init_and_add+0x128/0x194 [ 205.253748][ T5950] gfs2_sys_fs_add+0x208/0x428 [ 205.254546][ T5950] gfs2_fill_super+0xe20/0x1a9c [ 205.255465][ T5950] get_tree_bdev+0x35c/0x54c [ 205.256336][ T5950] gfs2_get_tree+0x58/0x1b8 [ 205.257185][ T5950] vfs_get_tree+0x90/0x278 [ 205.257920][ T5950] do_new_mount+0x228/0x804 [ 205.258688][ T5950] path_mount+0x57c/0xfe8 [ 205.259404][ T5950] __arm64_sys_mount+0x488/0x5f8 [ 205.260213][ T5950] invoke_syscall+0x98/0x28c [ 205.261043][ T5950] el0_svc_common+0x13c/0x258 [ 205.261865][ T5950] do_el0_svc+0x5c/0x140 [ 205.262582][ T5950] el0_svc+0x78/0x1d0 [ 205.263219][ T5950] el0t_64_sync_handler+0xcc/0xe4 [ 205.264021][ T5950] el0t_64_sync+0x1a0/0x1a4 [ 205.264970][ T5950] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.266999][ T5950] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.399073][ T5952] loop1: detected capacity change from 0 to 32768 [ 205.407777][ T5952] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.409034][ T5952] CPU: 1 PID: 5952 Comm: syz.1.612 Not tainted syzkaller #0 [ 205.410210][ T5952] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 205.411850][ T5952] Call trace: [ 205.412439][ T5952] dump_backtrace+0x0/0x458 [ 205.413289][ T5952] show_stack+0x2c/0x3c [ 205.414003][ T5952] __dump_stack+0x30/0x40 [ 205.414825][ T5952] dump_stack_lvl+0xf4/0x15c [ 205.415627][ T5952] dump_stack+0x1c/0x5c [ 205.416330][ T5952] sysfs_create_dir_ns+0x244/0x264 [ 205.417148][ T5952] kobject_add_internal+0x594/0xc2c [ 205.417972][ T5952] kobject_init_and_add+0x128/0x194 [ 205.418830][ T5952] gfs2_sys_fs_add+0x208/0x428 [ 205.419621][ T5952] gfs2_fill_super+0xe20/0x1a9c [ 205.420438][ T5952] get_tree_bdev+0x35c/0x54c [ 205.421170][ T5952] gfs2_get_tree+0x58/0x1b8 [ 205.421916][ T5952] vfs_get_tree+0x90/0x278 [ 205.422653][ T5952] do_new_mount+0x228/0x804 [ 205.423360][ T5952] path_mount+0x57c/0xfe8 [ 205.424065][ T5952] __arm64_sys_mount+0x488/0x5f8 [ 205.424844][ T5952] invoke_syscall+0x98/0x28c [ 205.425572][ T5952] el0_svc_common+0x13c/0x258 [ 205.426385][ T5952] do_el0_svc+0x5c/0x140 [ 205.427086][ T5952] el0_svc+0x78/0x1d0 [ 205.427710][ T5952] el0t_64_sync_handler+0xcc/0xe4 [ 205.428487][ T5952] el0t_64_sync+0x1a0/0x1a4 [ 205.429302][ T5952] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.431310][ T5952] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.563494][ T5954] loop1: detected capacity change from 0 to 32768 [ 205.571299][ T5954] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.572511][ T5954] CPU: 1 PID: 5954 Comm: syz.1.613 Not tainted syzkaller #0 [ 205.573758][ T5954] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 205.575323][ T5954] Call trace: [ 205.575863][ T5954] dump_backtrace+0x0/0x458 [ 205.576661][ T5954] show_stack+0x2c/0x3c [ 205.577392][ T5954] __dump_stack+0x30/0x40 [ 205.578185][ T5954] dump_stack_lvl+0xf4/0x15c [ 205.579011][ T5954] dump_stack+0x1c/0x5c [ 205.579738][ T5954] sysfs_create_dir_ns+0x244/0x264 [ 205.580668][ T5954] kobject_add_internal+0x594/0xc2c [ 205.581600][ T5954] kobject_init_and_add+0x128/0x194 [ 205.582548][ T5954] gfs2_sys_fs_add+0x208/0x428 [ 205.583292][ T5954] gfs2_fill_super+0xe20/0x1a9c [ 205.584095][ T5954] get_tree_bdev+0x35c/0x54c [ 205.584848][ T5954] gfs2_get_tree+0x58/0x1b8 [ 205.585529][ T5954] vfs_get_tree+0x90/0x278 [ 205.586236][ T5954] do_new_mount+0x228/0x804 [ 205.587029][ T5954] path_mount+0x57c/0xfe8 [ 205.587715][ T5954] __arm64_sys_mount+0x488/0x5f8 [ 205.588575][ T5954] invoke_syscall+0x98/0x28c [ 205.589317][ T5954] el0_svc_common+0x13c/0x258 [ 205.590098][ T5954] do_el0_svc+0x5c/0x140 [ 205.590787][ T5954] el0_svc+0x78/0x1d0 [ 205.591507][ T5954] el0t_64_sync_handler+0xcc/0xe4 [ 205.592320][ T5954] el0t_64_sync+0x1a0/0x1a4 [ 205.593191][ T5954] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.595340][ T5954] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.728106][ T5956] loop1: detected capacity change from 0 to 32768 [ 205.736084][ T5956] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.737360][ T5956] CPU: 1 PID: 5956 Comm: syz.1.614 Not tainted syzkaller #0 [ 205.738481][ T5956] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 205.740050][ T5956] Call trace: [ 205.740589][ T5956] dump_backtrace+0x0/0x458 [ 205.741373][ T5956] show_stack+0x2c/0x3c [ 205.742081][ T5956] __dump_stack+0x30/0x40 [ 205.742747][ T5956] dump_stack_lvl+0xf4/0x15c [ 205.743554][ T5956] dump_stack+0x1c/0x5c [ 205.744307][ T5956] sysfs_create_dir_ns+0x244/0x264 [ 205.745204][ T5956] kobject_add_internal+0x594/0xc2c [ 205.746077][ T5956] kobject_init_and_add+0x128/0x194 [ 205.746997][ T5956] gfs2_sys_fs_add+0x208/0x428 [ 205.747761][ T5956] gfs2_fill_super+0xe20/0x1a9c [ 205.748570][ T5956] get_tree_bdev+0x35c/0x54c [ 205.749346][ T5956] gfs2_get_tree+0x58/0x1b8 [ 205.750083][ T5956] vfs_get_tree+0x90/0x278 [ 205.750794][ T5956] do_new_mount+0x228/0x804 [ 205.751542][ T5956] path_mount+0x57c/0xfe8 [ 205.752217][ T5956] __arm64_sys_mount+0x488/0x5f8 [ 205.752995][ T5956] invoke_syscall+0x98/0x28c [ 205.753742][ T5956] el0_svc_common+0x13c/0x258 [ 205.754522][ T5956] do_el0_svc+0x5c/0x140 [ 205.755214][ T5956] el0_svc+0x78/0x1d0 [ 205.755903][ T5956] el0t_64_sync_handler+0xcc/0xe4 [ 205.756798][ T5956] el0t_64_sync+0x1a0/0x1a4 [ 205.757956][ T5956] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.760129][ T5956] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.899040][ T5958] loop1: detected capacity change from 0 to 32768 [ 205.906713][ T5958] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.907926][ T5958] CPU: 1 PID: 5958 Comm: syz.1.615 Not tainted syzkaller #0 [ 205.909093][ T5958] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 205.910570][ T5958] Call trace: [ 205.911047][ T5958] dump_backtrace+0x0/0x458 [ 205.911790][ T5958] show_stack+0x2c/0x3c [ 205.912441][ T5958] __dump_stack+0x30/0x40 [ 205.913154][ T5958] dump_stack_lvl+0xf4/0x15c [ 205.913945][ T5958] dump_stack+0x1c/0x5c [ 205.914691][ T5958] sysfs_create_dir_ns+0x244/0x264 [ 205.915507][ T5958] kobject_add_internal+0x594/0xc2c [ 205.916362][ T5958] kobject_init_and_add+0x128/0x194 [ 205.917251][ T5958] gfs2_sys_fs_add+0x208/0x428 [ 205.918125][ T5958] gfs2_fill_super+0xe20/0x1a9c [ 205.918906][ T5958] get_tree_bdev+0x35c/0x54c [ 205.919667][ T5958] gfs2_get_tree+0x58/0x1b8 [ 205.920377][ T5958] vfs_get_tree+0x90/0x278 [ 205.921118][ T5958] do_new_mount+0x228/0x804 [ 205.921913][ T5958] path_mount+0x57c/0xfe8 [ 205.922746][ T5958] __arm64_sys_mount+0x488/0x5f8 [ 205.923602][ T5958] invoke_syscall+0x98/0x28c [ 205.924386][ T5958] el0_svc_common+0x13c/0x258 [ 205.925174][ T5958] do_el0_svc+0x5c/0x140 [ 205.925858][ T5958] el0_svc+0x78/0x1d0 [ 205.926526][ T5958] el0t_64_sync_handler+0xcc/0xe4 [ 205.927320][ T5958] el0t_64_sync+0x1a0/0x1a4 [ 205.928252][ T5958] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.930446][ T5958] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.062908][ T5960] loop1: detected capacity change from 0 to 32768 [ 206.124087][ T5960] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.125426][ T5960] CPU: 0 PID: 5960 Comm: syz.1.616 Not tainted syzkaller #0 [ 206.126883][ T5960] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 206.128493][ T5960] Call trace: [ 206.129058][ T5960] dump_backtrace+0x0/0x458 [ 206.129808][ T5960] show_stack+0x2c/0x3c [ 206.130578][ T5960] __dump_stack+0x30/0x40 [ 206.131312][ T5960] dump_stack_lvl+0xf4/0x15c [ 206.132091][ T5960] dump_stack+0x1c/0x5c [ 206.132842][ T5960] sysfs_create_dir_ns+0x244/0x264 [ 206.133755][ T5960] kobject_add_internal+0x594/0xc2c [ 206.134846][ T5960] kobject_init_and_add+0x128/0x194 [ 206.135765][ T5960] gfs2_sys_fs_add+0x208/0x428 [ 206.136658][ T5960] gfs2_fill_super+0xe20/0x1a9c [ 206.137570][ T5960] get_tree_bdev+0x35c/0x54c [ 206.138388][ T5960] gfs2_get_tree+0x58/0x1b8 [ 206.139204][ T5960] vfs_get_tree+0x90/0x278 [ 206.139981][ T5960] do_new_mount+0x228/0x804 [ 206.140788][ T5960] path_mount+0x57c/0xfe8 [ 206.141515][ T5960] __arm64_sys_mount+0x488/0x5f8 [ 206.142351][ T5960] invoke_syscall+0x98/0x28c [ 206.143186][ T5960] el0_svc_common+0x13c/0x258 [ 206.144002][ T5960] do_el0_svc+0x5c/0x140 [ 206.144769][ T5960] el0_svc+0x78/0x1d0 [ 206.145441][ T5960] el0t_64_sync_handler+0xcc/0xe4 [ 206.146339][ T5960] el0t_64_sync+0x1a0/0x1a4 [ 206.148004][ T5960] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.150262][ T5960] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.284911][ T5962] loop1: detected capacity change from 0 to 32768 [ 206.327703][ T5962] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.328937][ T5962] CPU: 0 PID: 5962 Comm: syz.1.617 Not tainted syzkaller #0 [ 206.330215][ T5962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 206.331937][ T5962] Call trace: [ 206.332542][ T5962] dump_backtrace+0x0/0x458 [ 206.333401][ T5962] show_stack+0x2c/0x3c [ 206.334071][ T5962] __dump_stack+0x30/0x40 [ 206.334816][ T5962] dump_stack_lvl+0xf4/0x15c [ 206.335594][ T5962] dump_stack+0x1c/0x5c [ 206.336273][ T5962] sysfs_create_dir_ns+0x244/0x264 [ 206.337108][ T5962] kobject_add_internal+0x594/0xc2c [ 206.337966][ T5962] kobject_init_and_add+0x128/0x194 [ 206.338921][ T5962] gfs2_sys_fs_add+0x208/0x428 [ 206.339750][ T5962] gfs2_fill_super+0xe20/0x1a9c [ 206.340555][ T5962] get_tree_bdev+0x35c/0x54c [ 206.341355][ T5962] gfs2_get_tree+0x58/0x1b8 [ 206.342126][ T5962] vfs_get_tree+0x90/0x278 [ 206.342848][ T5962] do_new_mount+0x228/0x804 [ 206.343637][ T5962] path_mount+0x57c/0xfe8 [ 206.344369][ T5962] __arm64_sys_mount+0x488/0x5f8 [ 206.345197][ T5962] invoke_syscall+0x98/0x28c [ 206.346049][ T5962] el0_svc_common+0x13c/0x258 [ 206.346938][ T5962] do_el0_svc+0x5c/0x140 [ 206.347772][ T5962] el0_svc+0x78/0x1d0 [ 206.348490][ T5962] el0t_64_sync_handler+0xcc/0xe4 [ 206.349342][ T5962] el0t_64_sync+0x1a0/0x1a4 [ 206.351658][ T5962] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.353892][ T5962] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.488081][ T5964] chnl_net:caif_netlink_parms(): no params data found [ 206.506209][ T5964] bridge0: port 1(bridge_slave_0) entered blocking state [ 206.507563][ T5964] bridge0: port 1(bridge_slave_0) entered disabled state [ 206.509179][ T5964] device bridge_slave_0 entered promiscuous mode [ 206.511371][ T5964] bridge0: port 2(bridge_slave_1) entered blocking state [ 206.513406][ T5964] bridge0: port 2(bridge_slave_1) entered disabled state [ 206.514989][ T5964] device bridge_slave_1 entered promiscuous mode [ 206.523596][ T5964] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 206.526211][ T5964] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 206.534574][ T5964] team0: Port device team_slave_0 added [ 206.536801][ T5964] team0: Port device team_slave_1 added [ 206.543586][ T5964] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 206.544861][ T5964] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 206.549144][ T5964] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 206.551512][ T5964] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 206.553032][ T5964] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 206.557355][ T5964] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 206.603830][ T5964] device hsr_slave_0 entered promiscuous mode [ 206.632854][ T5964] device hsr_slave_1 entered promiscuous mode [ 206.672712][ T5964] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 206.674119][ T5964] Cannot create hsr debugfs directory [ 206.711381][ T5964] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 206.889360][ T5964] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 207.216790][ T5964] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 207.270479][ T5964] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 207.445645][ T5964] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 207.494122][ T5964] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 207.536408][ T5964] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 207.590064][ T5964] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 207.646275][ T5964] 8021q: adding VLAN 0 to HW filter on device bond0 [ 207.650259][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 207.652069][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 207.656421][ T5964] 8021q: adding VLAN 0 to HW filter on device team0 [ 207.658856][ T1641] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 207.660574][ T1641] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 207.662107][ T1641] bridge0: port 1(bridge_slave_0) entered blocking state [ 207.663399][ T1641] bridge0: port 1(bridge_slave_0) entered forwarding state [ 207.665082][ T1641] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 207.667701][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 207.669408][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 207.670958][ T344] bridge0: port 2(bridge_slave_1) entered blocking state [ 207.672178][ T344] bridge0: port 2(bridge_slave_1) entered forwarding state [ 207.679477][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 207.682909][ T1641] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 207.685747][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 207.687671][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 207.689304][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 207.692292][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 207.694907][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 207.697841][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 207.699429][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 207.702141][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 207.704058][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 207.706545][ T5964] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 207.744268][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 207.745682][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 207.748914][ T5964] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 207.755554][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 207.757319][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 207.766651][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 207.768357][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 207.769910][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 207.771346][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 207.774704][ T5964] device veth0_vlan entered promiscuous mode [ 207.778036][ T5964] device veth1_vlan entered promiscuous mode [ 207.785211][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 207.786750][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 207.788293][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 207.790002][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 207.793089][ T5964] device veth0_macvtap entered promiscuous mode [ 207.798867][ T5964] device veth1_macvtap entered promiscuous mode [ 207.803828][ T5964] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 207.805503][ T5964] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 207.807101][ T5964] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 207.808830][ T5964] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 207.811101][ T5964] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 207.812287][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 207.814851][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 207.816315][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 207.817955][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 207.820559][ T5964] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 207.822299][ T5964] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 207.824082][ T5964] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 207.825761][ T5964] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 207.827885][ T5964] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 207.829218][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 207.831033][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 207.834935][ T5964] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 207.836579][ T5964] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 207.838030][ T5964] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 207.839527][ T5964] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 207.861352][ T344] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 207.865293][ T344] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 207.866879][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 207.874314][ T344] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 207.876152][ T344] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 207.877646][ T344] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 208.016260][ T5976] loop1: detected capacity change from 0 to 32768 [ 208.071146][ T5976] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.072418][ T5976] CPU: 1 PID: 5976 Comm: syz.1.618 Not tainted syzkaller #0 [ 208.073685][ T5976] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 208.075281][ T5976] Call trace: [ 208.075826][ T5976] dump_backtrace+0x0/0x458 [ 208.076644][ T5976] show_stack+0x2c/0x3c [ 208.077295][ T5976] __dump_stack+0x30/0x40 [ 208.077964][ T5976] dump_stack_lvl+0xf4/0x15c [ 208.078756][ T5976] dump_stack+0x1c/0x5c [ 208.079476][ T5976] sysfs_create_dir_ns+0x244/0x264 [ 208.080307][ T5976] kobject_add_internal+0x594/0xc2c [ 208.081192][ T5976] kobject_init_and_add+0x128/0x194 [ 208.082003][ T5976] gfs2_sys_fs_add+0x208/0x428 [ 208.082726][ T5976] gfs2_fill_super+0xe20/0x1a9c [ 208.083536][ T5976] get_tree_bdev+0x35c/0x54c [ 208.084357][ T5976] gfs2_get_tree+0x58/0x1b8 [ 208.085105][ T5976] vfs_get_tree+0x90/0x278 [ 208.085889][ T5976] do_new_mount+0x228/0x804 [ 208.086795][ T5976] path_mount+0x57c/0xfe8 [ 208.087584][ T5976] __arm64_sys_mount+0x488/0x5f8 [ 208.088421][ T5976] invoke_syscall+0x98/0x28c [ 208.089296][ T5976] el0_svc_common+0x13c/0x258 [ 208.090107][ T5976] do_el0_svc+0x5c/0x140 [ 208.090895][ T5976] el0_svc+0x78/0x1d0 [ 208.091564][ T5976] el0t_64_sync_handler+0xcc/0xe4 [ 208.092369][ T5976] el0t_64_sync+0x1a0/0x1a4 [ 208.094535][ T5976] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.096913][ T5976] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.347852][ T5978] loop1: detected capacity change from 0 to 32768 [ 208.419001][ T5978] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.420473][ T5978] CPU: 1 PID: 5978 Comm: syz.1.619 Not tainted syzkaller #0 [ 208.421667][ T5978] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 208.423388][ T5978] Call trace: [ 208.423938][ T5978] dump_backtrace+0x0/0x458 [ 208.424731][ T5978] show_stack+0x2c/0x3c [ 208.425481][ T5978] __dump_stack+0x30/0x40 [ 208.426200][ T5978] dump_stack_lvl+0xf4/0x15c [ 208.427016][ T5978] dump_stack+0x1c/0x5c [ 208.427673][ T5978] sysfs_create_dir_ns+0x244/0x264 [ 208.428522][ T5978] kobject_add_internal+0x594/0xc2c [ 208.429426][ T5978] kobject_init_and_add+0x128/0x194 [ 208.430365][ T5978] gfs2_sys_fs_add+0x208/0x428 [ 208.431169][ T5978] gfs2_fill_super+0xe20/0x1a9c [ 208.431918][ T5978] get_tree_bdev+0x35c/0x54c [ 208.432634][ T5978] gfs2_get_tree+0x58/0x1b8 [ 208.433360][ T5978] vfs_get_tree+0x90/0x278 [ 208.434069][ T5978] do_new_mount+0x228/0x804 [ 208.434840][ T5978] path_mount+0x57c/0xfe8 [ 208.435602][ T5978] __arm64_sys_mount+0x488/0x5f8 [ 208.436450][ T5978] invoke_syscall+0x98/0x28c [ 208.437268][ T5978] el0_svc_common+0x13c/0x258 [ 208.438090][ T5978] do_el0_svc+0x5c/0x140 [ 208.438826][ T5978] el0_svc+0x78/0x1d0 [ 208.439428][ T5978] el0t_64_sync_handler+0xcc/0xe4 [ 208.440304][ T5978] el0t_64_sync+0x1a0/0x1a4 [ 208.442484][ T5978] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.445461][ T5978] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.481287][ T1620] device hsr_slave_0 left promiscuous mode [ 208.502989][ T4183] Bluetooth: hci2: command 0x0409 tx timeout [ 208.523220][ T1620] device hsr_slave_1 left promiscuous mode [ 208.604421][ T1620] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 208.605831][ T1620] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 208.607636][ T1620] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 208.608462][ T5980] loop1: detected capacity change from 0 to 32768 [ 208.608785][ T1620] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 208.611273][ T1620] device bridge_slave_1 left promiscuous mode [ 208.612842][ T1620] bridge0: port 2(bridge_slave_1) entered disabled state [ 208.644499][ T5980] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.646081][ T5980] CPU: 0 PID: 5980 Comm: syz.1.620 Not tainted syzkaller #0 [ 208.647313][ T5980] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 208.649046][ T5980] Call trace: [ 208.649622][ T5980] dump_backtrace+0x0/0x458 [ 208.650426][ T5980] show_stack+0x2c/0x3c [ 208.651192][ T5980] __dump_stack+0x30/0x40 [ 208.651995][ T5980] dump_stack_lvl+0xf4/0x15c [ 208.652907][ T5980] dump_stack+0x1c/0x5c [ 208.653648][ T5980] sysfs_create_dir_ns+0x244/0x264 [ 208.654545][ T5980] kobject_add_internal+0x594/0xc2c [ 208.655464][ T5980] kobject_init_and_add+0x128/0x194 [ 208.656349][ T5980] gfs2_sys_fs_add+0x208/0x428 [ 208.657133][ T5980] gfs2_fill_super+0xe20/0x1a9c [ 208.657937][ T5980] get_tree_bdev+0x35c/0x54c [ 208.658725][ T5980] gfs2_get_tree+0x58/0x1b8 [ 208.659496][ T5980] vfs_get_tree+0x90/0x278 [ 208.660251][ T5980] do_new_mount+0x228/0x804 [ 208.661023][ T5980] path_mount+0x57c/0xfe8 [ 208.661739][ T5980] __arm64_sys_mount+0x488/0x5f8 [ 208.662576][ T5980] invoke_syscall+0x98/0x28c [ 208.663391][ T5980] el0_svc_common+0x13c/0x258 [ 208.664182][ T5980] do_el0_svc+0x5c/0x140 [ 208.664932][ T5980] el0_svc+0x78/0x1d0 [ 208.665619][ T5980] el0t_64_sync_handler+0xcc/0xe4 [ 208.666676][ T5980] el0t_64_sync+0x1a0/0x1a4 [ 208.670226][ T1620] device bridge_slave_0 left promiscuous mode [ 208.671272][ T1620] bridge0: port 1(bridge_slave_0) entered disabled state [ 208.672762][ T5980] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.675045][ T5980] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.823493][ T1620] device veth1_macvtap left promiscuous mode [ 208.824495][ T1620] device veth0_macvtap left promiscuous mode [ 208.825558][ T1620] device veth1_vlan left promiscuous mode [ 208.826654][ T1620] device veth0_vlan left promiscuous mode [ 208.835425][ T5982] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.836689][ T5982] CPU: 1 PID: 5982 Comm: syz.1.621 Not tainted syzkaller #0 [ 208.837818][ T5982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 208.839383][ T5982] Call trace: [ 208.839910][ T5982] dump_backtrace+0x0/0x458 [ 208.840624][ T5982] show_stack+0x2c/0x3c [ 208.841267][ T5982] __dump_stack+0x30/0x40 [ 208.841979][ T5982] dump_stack_lvl+0xf4/0x15c [ 208.842742][ T5982] dump_stack+0x1c/0x5c [ 208.843479][ T5982] sysfs_create_dir_ns+0x244/0x264 [ 208.844401][ T5982] kobject_add_internal+0x594/0xc2c [ 208.845316][ T5982] kobject_init_and_add+0x128/0x194 [ 208.846162][ T5982] gfs2_sys_fs_add+0x208/0x428 [ 208.846928][ T5982] gfs2_fill_super+0xe20/0x1a9c [ 208.847865][ T5982] get_tree_bdev+0x35c/0x54c [ 208.848714][ T5982] gfs2_get_tree+0x58/0x1b8 [ 208.849532][ T5982] vfs_get_tree+0x90/0x278 [ 208.850282][ T5982] do_new_mount+0x228/0x804 [ 208.851065][ T5982] path_mount+0x57c/0xfe8 [ 208.851861][ T5982] __arm64_sys_mount+0x488/0x5f8 [ 208.852694][ T5982] invoke_syscall+0x98/0x28c [ 208.853501][ T5982] el0_svc_common+0x13c/0x258 [ 208.854318][ T5982] do_el0_svc+0x5c/0x140 [ 208.855077][ T5982] el0_svc+0x78/0x1d0 [ 208.855798][ T5982] el0t_64_sync_handler+0xcc/0xe4 [ 208.856645][ T5982] el0t_64_sync+0x1a0/0x1a4 [ 208.876837][ T5982] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.879224][ T5982] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.938930][ T1620] team0 (unregistering): Port device team_slave_1 removed [ 208.949762][ T1620] team0 (unregistering): Port device team_slave_0 removed [ 208.956981][ T1620] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 208.986877][ T1620] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 209.086403][ T1620] bond0 (unregistering): Released all slaves [ 209.145600][ T5984] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.146858][ T5984] CPU: 1 PID: 5984 Comm: syz.1.622 Not tainted syzkaller #0 [ 209.148123][ T5984] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 209.149923][ T5984] Call trace: [ 209.150483][ T5984] dump_backtrace+0x0/0x458 [ 209.151239][ T5984] show_stack+0x2c/0x3c [ 209.151882][ T5984] __dump_stack+0x30/0x40 [ 209.152611][ T5984] dump_stack_lvl+0xf4/0x15c [ 209.153369][ T5984] dump_stack+0x1c/0x5c [ 209.154049][ T5984] sysfs_create_dir_ns+0x244/0x264 [ 209.154903][ T5984] kobject_add_internal+0x594/0xc2c [ 209.155714][ T5984] kobject_init_and_add+0x128/0x194 [ 209.156484][ T5984] gfs2_sys_fs_add+0x208/0x428 [ 209.157262][ T5984] gfs2_fill_super+0xe20/0x1a9c [ 209.158062][ T5984] get_tree_bdev+0x35c/0x54c [ 209.158840][ T5984] gfs2_get_tree+0x58/0x1b8 [ 209.159546][ T5984] vfs_get_tree+0x90/0x278 [ 209.160262][ T5984] do_new_mount+0x228/0x804 [ 209.161094][ T5984] path_mount+0x57c/0xfe8 [ 209.161817][ T5984] __arm64_sys_mount+0x488/0x5f8 [ 209.162653][ T5984] invoke_syscall+0x98/0x28c [ 209.163390][ T5984] el0_svc_common+0x13c/0x258 [ 209.164129][ T5984] do_el0_svc+0x5c/0x140 [ 209.164853][ T5984] el0_svc+0x78/0x1d0 [ 209.165493][ T5984] el0t_64_sync_handler+0xcc/0xe4 [ 209.166342][ T5984] el0t_64_sync+0x1a0/0x1a4 [ 209.168624][ T5984] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.170732][ T5984] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.345576][ T5986] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.347163][ T5986] CPU: 1 PID: 5986 Comm: syz.1.623 Not tainted syzkaller #0 [ 209.348381][ T5986] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 209.350073][ T5986] Call trace: [ 209.350697][ T5986] dump_backtrace+0x0/0x458 [ 209.351447][ T5986] show_stack+0x2c/0x3c [ 209.352144][ T5986] __dump_stack+0x30/0x40 [ 209.352896][ T5986] dump_stack_lvl+0xf4/0x15c [ 209.353746][ T5986] dump_stack+0x1c/0x5c [ 209.354525][ T5986] sysfs_create_dir_ns+0x244/0x264 [ 209.355418][ T5986] kobject_add_internal+0x594/0xc2c [ 209.356263][ T5986] kobject_init_and_add+0x128/0x194 [ 209.357133][ T5986] gfs2_sys_fs_add+0x208/0x428 [ 209.357981][ T5986] gfs2_fill_super+0xe20/0x1a9c [ 209.358805][ T5986] get_tree_bdev+0x35c/0x54c [ 209.359566][ T5986] gfs2_get_tree+0x58/0x1b8 [ 209.360291][ T5986] vfs_get_tree+0x90/0x278 [ 209.361031][ T5986] do_new_mount+0x228/0x804 [ 209.361767][ T5986] path_mount+0x57c/0xfe8 [ 209.362489][ T5986] __arm64_sys_mount+0x488/0x5f8 [ 209.363344][ T5986] invoke_syscall+0x98/0x28c [ 209.364140][ T5986] el0_svc_common+0x13c/0x258 [ 209.364931][ T5986] do_el0_svc+0x5c/0x140 [ 209.365635][ T5986] el0_svc+0x78/0x1d0 [ 209.366278][ T5986] el0t_64_sync_handler+0xcc/0xe4 [ 209.367175][ T5986] el0t_64_sync+0x1a0/0x1a4 [ 209.372885][ T5986] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.375002][ T5986] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.587871][ T5988] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.589220][ T5988] CPU: 1 PID: 5988 Comm: syz.1.624 Not tainted syzkaller #0 [ 209.590427][ T5988] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 209.592136][ T5988] Call trace: [ 209.592696][ T5988] dump_backtrace+0x0/0x458 [ 209.593406][ T5988] show_stack+0x2c/0x3c [ 209.594163][ T5988] __dump_stack+0x30/0x40 [ 209.594948][ T5988] dump_stack_lvl+0xf4/0x15c [ 209.595736][ T5988] dump_stack+0x1c/0x5c [ 209.596376][ T5988] sysfs_create_dir_ns+0x244/0x264 [ 209.597253][ T5988] kobject_add_internal+0x594/0xc2c [ 209.598063][ T5988] kobject_init_and_add+0x128/0x194 [ 209.598874][ T5988] gfs2_sys_fs_add+0x208/0x428 [ 209.599769][ T5988] gfs2_fill_super+0xe20/0x1a9c [ 209.600637][ T5988] get_tree_bdev+0x35c/0x54c [ 209.601406][ T5988] gfs2_get_tree+0x58/0x1b8 [ 209.602216][ T5988] vfs_get_tree+0x90/0x278 [ 209.603069][ T5988] do_new_mount+0x228/0x804 [ 209.603868][ T5988] path_mount+0x57c/0xfe8 [ 209.604662][ T5988] __arm64_sys_mount+0x488/0x5f8 [ 209.605497][ T5988] invoke_syscall+0x98/0x28c [ 209.606315][ T5988] el0_svc_common+0x13c/0x258 [ 209.607064][ T5988] do_el0_svc+0x5c/0x140 [ 209.607799][ T5988] el0_svc+0x78/0x1d0 [ 209.608505][ T5988] el0t_64_sync_handler+0xcc/0xe4 [ 209.609310][ T5988] el0t_64_sync+0x1a0/0x1a4 [ 209.613645][ T5988] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.615682][ T5988] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.761432][ T5990] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.762873][ T5990] CPU: 0 PID: 5990 Comm: syz.1.625 Not tainted syzkaller #0 [ 209.764073][ T5990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 209.765920][ T5990] Call trace: [ 209.766498][ T5990] dump_backtrace+0x0/0x458 [ 209.767378][ T5990] show_stack+0x2c/0x3c [ 209.768074][ T5990] __dump_stack+0x30/0x40 [ 209.768820][ T5990] dump_stack_lvl+0xf4/0x15c [ 209.769628][ T5990] dump_stack+0x1c/0x5c [ 209.770367][ T5990] sysfs_create_dir_ns+0x244/0x264 [ 209.771339][ T5990] kobject_add_internal+0x594/0xc2c [ 209.772342][ T5990] kobject_init_and_add+0x128/0x194 [ 209.773340][ T5990] gfs2_sys_fs_add+0x208/0x428 [ 209.774161][ T5990] gfs2_fill_super+0xe20/0x1a9c [ 209.775070][ T5990] get_tree_bdev+0x35c/0x54c [ 209.775897][ T5990] gfs2_get_tree+0x58/0x1b8 [ 209.776626][ T5990] vfs_get_tree+0x90/0x278 [ 209.777410][ T5990] do_new_mount+0x228/0x804 [ 209.778260][ T5990] path_mount+0x57c/0xfe8 [ 209.778994][ T5990] __arm64_sys_mount+0x488/0x5f8 [ 209.779888][ T5990] invoke_syscall+0x98/0x28c [ 209.780744][ T5990] el0_svc_common+0x13c/0x258 [ 209.781582][ T5990] do_el0_svc+0x5c/0x140 [ 209.782338][ T5990] el0_svc+0x78/0x1d0 [ 209.783072][ T5990] el0t_64_sync_handler+0xcc/0xe4 [ 209.783932][ T5990] el0t_64_sync+0x1a0/0x1a4 [ 209.784946][ T5990] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.787114][ T5990] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.966188][ T5992] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.967561][ T5992] CPU: 1 PID: 5992 Comm: syz.1.626 Not tainted syzkaller #0 [ 209.968727][ T5992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 209.970355][ T5992] Call trace: [ 209.970851][ T5992] dump_backtrace+0x0/0x458 [ 209.971609][ T5992] show_stack+0x2c/0x3c [ 209.972384][ T5992] __dump_stack+0x30/0x40 [ 209.973107][ T5992] dump_stack_lvl+0xf4/0x15c [ 209.973899][ T5992] dump_stack+0x1c/0x5c [ 209.974605][ T5992] sysfs_create_dir_ns+0x244/0x264 [ 209.975516][ T5992] kobject_add_internal+0x594/0xc2c [ 209.976367][ T5992] kobject_init_and_add+0x128/0x194 [ 209.977323][ T5992] gfs2_sys_fs_add+0x208/0x428 [ 209.978185][ T5992] gfs2_fill_super+0xe20/0x1a9c [ 209.978977][ T5992] get_tree_bdev+0x35c/0x54c [ 209.979775][ T5992] gfs2_get_tree+0x58/0x1b8 [ 209.980533][ T5992] vfs_get_tree+0x90/0x278 [ 209.981425][ T5992] do_new_mount+0x228/0x804 [ 209.982161][ T5992] path_mount+0x57c/0xfe8 [ 209.982919][ T5992] __arm64_sys_mount+0x488/0x5f8 [ 209.983709][ T5992] invoke_syscall+0x98/0x28c [ 209.984581][ T5992] el0_svc_common+0x13c/0x258 [ 209.985449][ T5992] do_el0_svc+0x5c/0x140 [ 209.986249][ T5992] el0_svc+0x78/0x1d0 [ 209.986947][ T5992] el0t_64_sync_handler+0xcc/0xe4 [ 209.987858][ T5992] el0t_64_sync+0x1a0/0x1a4 [ 209.989218][ T5992] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.991579][ T5992] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.207689][ T5994] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.209130][ T5994] CPU: 0 PID: 5994 Comm: syz.1.627 Not tainted syzkaller #0 [ 210.210375][ T5994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 210.212154][ T5994] Call trace: [ 210.212749][ T5994] dump_backtrace+0x0/0x458 [ 210.213570][ T5994] show_stack+0x2c/0x3c [ 210.214440][ T5994] __dump_stack+0x30/0x40 [ 210.215327][ T5994] dump_stack_lvl+0xf4/0x15c [ 210.216246][ T5994] dump_stack+0x1c/0x5c [ 210.217009][ T5994] sysfs_create_dir_ns+0x244/0x264 [ 210.217936][ T5994] kobject_add_internal+0x594/0xc2c [ 210.218913][ T5994] kobject_init_and_add+0x128/0x194 [ 210.219815][ T5994] gfs2_sys_fs_add+0x208/0x428 [ 210.220665][ T5994] gfs2_fill_super+0xe20/0x1a9c [ 210.221543][ T5994] get_tree_bdev+0x35c/0x54c [ 210.222400][ T5994] gfs2_get_tree+0x58/0x1b8 [ 210.223203][ T5994] vfs_get_tree+0x90/0x278 [ 210.223872][ T5994] do_new_mount+0x228/0x804 [ 210.224637][ T5994] path_mount+0x57c/0xfe8 [ 210.225377][ T5994] __arm64_sys_mount+0x488/0x5f8 [ 210.226268][ T5994] invoke_syscall+0x98/0x28c [ 210.227054][ T5994] el0_svc_common+0x13c/0x258 [ 210.227948][ T5994] do_el0_svc+0x5c/0x140 [ 210.228734][ T5994] el0_svc+0x78/0x1d0 [ 210.229471][ T5994] el0t_64_sync_handler+0xcc/0xe4 [ 210.230390][ T5994] el0t_64_sync+0x1a0/0x1a4 [ 210.242856][ T5994] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.245206][ T5994] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:30 executed programs: 613 [ 210.426384][ T5996] set_capacity_and_notify: 7 callbacks suppressed [ 210.426393][ T5996] loop1: detected capacity change from 0 to 32768 [ 210.510672][ T5996] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.511972][ T5996] CPU: 0 PID: 5996 Comm: syz.1.628 Not tainted syzkaller #0 [ 210.513344][ T5996] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 210.515536][ T5996] Call trace: [ 210.516194][ T5996] dump_backtrace+0x0/0x458 [ 210.517173][ T5996] show_stack+0x2c/0x3c [ 210.517996][ T5996] __dump_stack+0x30/0x40 [ 210.518837][ T5996] dump_stack_lvl+0xf4/0x15c [ 210.519661][ T5996] dump_stack+0x1c/0x5c [ 210.520442][ T5996] sysfs_create_dir_ns+0x244/0x264 [ 210.521378][ T5996] kobject_add_internal+0x594/0xc2c [ 210.522325][ T5996] kobject_init_and_add+0x128/0x194 [ 210.523321][ T5996] gfs2_sys_fs_add+0x208/0x428 [ 210.524350][ T5996] gfs2_fill_super+0xe20/0x1a9c [ 210.525364][ T5996] get_tree_bdev+0x35c/0x54c [ 210.526219][ T5996] gfs2_get_tree+0x58/0x1b8 [ 210.527033][ T5996] vfs_get_tree+0x90/0x278 [ 210.527871][ T5996] do_new_mount+0x228/0x804 [ 210.528646][ T5996] path_mount+0x57c/0xfe8 [ 210.529381][ T5996] __arm64_sys_mount+0x488/0x5f8 [ 210.530281][ T5996] invoke_syscall+0x98/0x28c [ 210.531176][ T5996] el0_svc_common+0x13c/0x258 [ 210.532010][ T5996] do_el0_svc+0x5c/0x140 [ 210.532733][ T5996] el0_svc+0x78/0x1d0 [ 210.533496][ T5996] el0t_64_sync_handler+0xcc/0xe4 [ 210.534368][ T5996] el0t_64_sync+0x1a0/0x1a4 [ 210.535925][ T5996] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.538116][ T5996] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.582768][ T1540] Bluetooth: hci2: command 0x041b tx timeout [ 210.750740][ T5998] loop1: detected capacity change from 0 to 32768 [ 210.762309][ T5998] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.763975][ T5998] CPU: 1 PID: 5998 Comm: syz.1.629 Not tainted syzkaller #0 [ 210.765198][ T5998] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 210.766847][ T5998] Call trace: [ 210.767391][ T5998] dump_backtrace+0x0/0x458 [ 210.768217][ T5998] show_stack+0x2c/0x3c [ 210.768952][ T5998] __dump_stack+0x30/0x40 [ 210.769749][ T5998] dump_stack_lvl+0xf4/0x15c [ 210.770564][ T5998] dump_stack+0x1c/0x5c [ 210.771270][ T5998] sysfs_create_dir_ns+0x244/0x264 [ 210.772185][ T5998] kobject_add_internal+0x594/0xc2c [ 210.773089][ T5998] kobject_init_and_add+0x128/0x194 [ 210.774063][ T5998] gfs2_sys_fs_add+0x208/0x428 [ 210.774968][ T5998] gfs2_fill_super+0xe20/0x1a9c [ 210.775836][ T5998] get_tree_bdev+0x35c/0x54c [ 210.776673][ T5998] gfs2_get_tree+0x58/0x1b8 [ 210.777414][ T5998] vfs_get_tree+0x90/0x278 [ 210.778223][ T5998] do_new_mount+0x228/0x804 [ 210.778998][ T5998] path_mount+0x57c/0xfe8 [ 210.779754][ T5998] __arm64_sys_mount+0x488/0x5f8 [ 210.780719][ T5998] invoke_syscall+0x98/0x28c [ 210.781483][ T5998] el0_svc_common+0x13c/0x258 [ 210.782282][ T5998] do_el0_svc+0x5c/0x140 [ 210.782992][ T5998] el0_svc+0x78/0x1d0 [ 210.783667][ T5998] el0t_64_sync_handler+0xcc/0xe4 [ 210.784521][ T5998] el0t_64_sync+0x1a0/0x1a4 [ 210.785412][ T5998] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.787696][ T5998] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.020858][ T6000] loop1: detected capacity change from 0 to 32768 [ 211.058416][ T6000] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.059708][ T6000] CPU: 1 PID: 6000 Comm: syz.1.630 Not tainted syzkaller #0 [ 211.060956][ T6000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 211.062651][ T6000] Call trace: [ 211.063209][ T6000] dump_backtrace+0x0/0x458 [ 211.063978][ T6000] show_stack+0x2c/0x3c [ 211.064766][ T6000] __dump_stack+0x30/0x40 [ 211.065470][ T6000] dump_stack_lvl+0xf4/0x15c [ 211.066222][ T6000] dump_stack+0x1c/0x5c [ 211.066952][ T6000] sysfs_create_dir_ns+0x244/0x264 [ 211.067782][ T6000] kobject_add_internal+0x594/0xc2c [ 211.068627][ T6000] kobject_init_and_add+0x128/0x194 [ 211.069456][ T6000] gfs2_sys_fs_add+0x208/0x428 [ 211.070278][ T6000] gfs2_fill_super+0xe20/0x1a9c [ 211.071049][ T6000] get_tree_bdev+0x35c/0x54c [ 211.071763][ T6000] gfs2_get_tree+0x58/0x1b8 [ 211.072533][ T6000] vfs_get_tree+0x90/0x278 [ 211.073238][ T6000] do_new_mount+0x228/0x804 [ 211.074005][ T6000] path_mount+0x57c/0xfe8 [ 211.074703][ T6000] __arm64_sys_mount+0x488/0x5f8 [ 211.075512][ T6000] invoke_syscall+0x98/0x28c [ 211.076298][ T6000] el0_svc_common+0x13c/0x258 [ 211.077138][ T6000] do_el0_svc+0x5c/0x140 [ 211.077918][ T6000] el0_svc+0x78/0x1d0 [ 211.078583][ T6000] el0t_64_sync_handler+0xcc/0xe4 [ 211.079378][ T6000] el0t_64_sync+0x1a0/0x1a4 [ 211.081709][ T6000] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.084020][ T6000] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.224638][ T6002] loop1: detected capacity change from 0 to 32768 [ 211.284269][ T6002] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.285666][ T6002] CPU: 0 PID: 6002 Comm: syz.1.631 Not tainted syzkaller #0 [ 211.286994][ T6002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 211.288816][ T6002] Call trace: [ 211.289345][ T6002] dump_backtrace+0x0/0x458 [ 211.290073][ T6002] show_stack+0x2c/0x3c [ 211.290705][ T6002] __dump_stack+0x30/0x40 [ 211.291389][ T6002] dump_stack_lvl+0xf4/0x15c [ 211.292149][ T6002] dump_stack+0x1c/0x5c [ 211.292851][ T6002] sysfs_create_dir_ns+0x244/0x264 [ 211.293745][ T6002] kobject_add_internal+0x594/0xc2c [ 211.294749][ T6002] kobject_init_and_add+0x128/0x194 [ 211.295732][ T6002] gfs2_sys_fs_add+0x208/0x428 [ 211.296617][ T6002] gfs2_fill_super+0xe20/0x1a9c [ 211.297517][ T6002] get_tree_bdev+0x35c/0x54c [ 211.298340][ T6002] gfs2_get_tree+0x58/0x1b8 [ 211.299192][ T6002] vfs_get_tree+0x90/0x278 [ 211.299979][ T6002] do_new_mount+0x228/0x804 [ 211.300776][ T6002] path_mount+0x57c/0xfe8 [ 211.301569][ T6002] __arm64_sys_mount+0x488/0x5f8 [ 211.302435][ T6002] invoke_syscall+0x98/0x28c [ 211.303305][ T6002] el0_svc_common+0x13c/0x258 [ 211.304244][ T6002] do_el0_svc+0x5c/0x140 [ 211.305043][ T6002] el0_svc+0x78/0x1d0 [ 211.305798][ T6002] el0t_64_sync_handler+0xcc/0xe4 [ 211.306722][ T6002] el0t_64_sync+0x1a0/0x1a4 [ 211.308327][ T6002] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.310404][ T6002] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.443612][ T6004] loop1: detected capacity change from 0 to 32768 [ 211.451066][ T6004] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.452430][ T6004] CPU: 1 PID: 6004 Comm: syz.1.632 Not tainted syzkaller #0 [ 211.453855][ T6004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 211.455806][ T6004] Call trace: [ 211.456370][ T6004] dump_backtrace+0x0/0x458 [ 211.457172][ T6004] show_stack+0x2c/0x3c [ 211.457884][ T6004] __dump_stack+0x30/0x40 [ 211.458599][ T6004] dump_stack_lvl+0xf4/0x15c [ 211.459390][ T6004] dump_stack+0x1c/0x5c [ 211.460083][ T6004] sysfs_create_dir_ns+0x244/0x264 [ 211.460880][ T6004] kobject_add_internal+0x594/0xc2c [ 211.461763][ T6004] kobject_init_and_add+0x128/0x194 [ 211.462581][ T6004] gfs2_sys_fs_add+0x208/0x428 [ 211.463388][ T6004] gfs2_fill_super+0xe20/0x1a9c [ 211.464175][ T6004] get_tree_bdev+0x35c/0x54c [ 211.464961][ T6004] gfs2_get_tree+0x58/0x1b8 [ 211.465742][ T6004] vfs_get_tree+0x90/0x278 [ 211.466496][ T6004] do_new_mount+0x228/0x804 [ 211.467271][ T6004] path_mount+0x57c/0xfe8 [ 211.468042][ T6004] __arm64_sys_mount+0x488/0x5f8 [ 211.468896][ T6004] invoke_syscall+0x98/0x28c [ 211.469699][ T6004] el0_svc_common+0x13c/0x258 [ 211.470453][ T6004] do_el0_svc+0x5c/0x140 [ 211.471145][ T6004] el0_svc+0x78/0x1d0 [ 211.471817][ T6004] el0t_64_sync_handler+0xcc/0xe4 [ 211.472701][ T6004] el0t_64_sync+0x1a0/0x1a4 [ 211.474953][ T6004] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.477082][ T6004] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.606942][ T6006] loop1: detected capacity change from 0 to 32768 [ 211.644349][ T6006] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.645660][ T6006] CPU: 0 PID: 6006 Comm: syz.1.633 Not tainted syzkaller #0 [ 211.646870][ T6006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 211.648497][ T6006] Call trace: [ 211.649109][ T6006] dump_backtrace+0x0/0x458 [ 211.649995][ T6006] show_stack+0x2c/0x3c [ 211.650788][ T6006] __dump_stack+0x30/0x40 [ 211.651628][ T6006] dump_stack_lvl+0xf4/0x15c [ 211.652572][ T6006] dump_stack+0x1c/0x5c [ 211.653317][ T6006] sysfs_create_dir_ns+0x244/0x264 [ 211.654356][ T6006] kobject_add_internal+0x594/0xc2c [ 211.655309][ T6006] kobject_init_and_add+0x128/0x194 [ 211.656217][ T6006] gfs2_sys_fs_add+0x208/0x428 [ 211.657063][ T6006] gfs2_fill_super+0xe20/0x1a9c [ 211.657917][ T6006] get_tree_bdev+0x35c/0x54c [ 211.658740][ T6006] gfs2_get_tree+0x58/0x1b8 [ 211.659518][ T6006] vfs_get_tree+0x90/0x278 [ 211.660304][ T6006] do_new_mount+0x228/0x804 [ 211.661081][ T6006] path_mount+0x57c/0xfe8 [ 211.661824][ T6006] __arm64_sys_mount+0x488/0x5f8 [ 211.662655][ T6006] invoke_syscall+0x98/0x28c [ 211.663437][ T6006] el0_svc_common+0x13c/0x258 [ 211.664360][ T6006] do_el0_svc+0x5c/0x140 [ 211.665131][ T6006] el0_svc+0x78/0x1d0 [ 211.665835][ T6006] el0t_64_sync_handler+0xcc/0xe4 [ 211.666767][ T6006] el0t_64_sync+0x1a0/0x1a4 [ 211.669104][ T6006] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.671413][ T6006] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.805968][ T6008] loop1: detected capacity change from 0 to 32768 [ 211.907352][ T6008] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.908725][ T6008] CPU: 0 PID: 6008 Comm: syz.1.634 Not tainted syzkaller #0 [ 211.909970][ T6008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 211.911761][ T6008] Call trace: [ 211.912405][ T6008] dump_backtrace+0x0/0x458 [ 211.913324][ T6008] show_stack+0x2c/0x3c [ 211.914058][ T6008] __dump_stack+0x30/0x40 [ 211.914864][ T6008] dump_stack_lvl+0xf4/0x15c [ 211.915633][ T6008] dump_stack+0x1c/0x5c [ 211.916410][ T6008] sysfs_create_dir_ns+0x244/0x264 [ 211.917294][ T6008] kobject_add_internal+0x594/0xc2c [ 211.918179][ T6008] kobject_init_and_add+0x128/0x194 [ 211.919063][ T6008] gfs2_sys_fs_add+0x208/0x428 [ 211.919925][ T6008] gfs2_fill_super+0xe20/0x1a9c [ 211.920795][ T6008] get_tree_bdev+0x35c/0x54c [ 211.921688][ T6008] gfs2_get_tree+0x58/0x1b8 [ 211.922482][ T6008] vfs_get_tree+0x90/0x278 [ 211.923277][ T6008] do_new_mount+0x228/0x804 [ 211.924161][ T6008] path_mount+0x57c/0xfe8 [ 211.924987][ T6008] __arm64_sys_mount+0x488/0x5f8 [ 211.925837][ T6008] invoke_syscall+0x98/0x28c [ 211.926694][ T6008] el0_svc_common+0x13c/0x258 [ 211.927443][ T6008] do_el0_svc+0x5c/0x140 [ 211.928231][ T6008] el0_svc+0x78/0x1d0 [ 211.928934][ T6008] el0t_64_sync_handler+0xcc/0xe4 [ 211.929766][ T6008] el0t_64_sync+0x1a0/0x1a4 [ 211.931975][ T6008] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.934231][ T6008] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.097256][ T6010] loop1: detected capacity change from 0 to 32768 [ 212.137860][ T6010] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.139313][ T6010] CPU: 0 PID: 6010 Comm: syz.1.635 Not tainted syzkaller #0 [ 212.140571][ T6010] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 212.142268][ T6010] Call trace: [ 212.142813][ T6010] dump_backtrace+0x0/0x458 [ 212.143638][ T6010] show_stack+0x2c/0x3c [ 212.144437][ T6010] __dump_stack+0x30/0x40 [ 212.145226][ T6010] dump_stack_lvl+0xf4/0x15c [ 212.146108][ T6010] dump_stack+0x1c/0x5c [ 212.146840][ T6010] sysfs_create_dir_ns+0x244/0x264 [ 212.147784][ T6010] kobject_add_internal+0x594/0xc2c [ 212.148718][ T6010] kobject_init_and_add+0x128/0x194 [ 212.149634][ T6010] gfs2_sys_fs_add+0x208/0x428 [ 212.150498][ T6010] gfs2_fill_super+0xe20/0x1a9c [ 212.151382][ T6010] get_tree_bdev+0x35c/0x54c [ 212.152202][ T6010] gfs2_get_tree+0x58/0x1b8 [ 212.153063][ T6010] vfs_get_tree+0x90/0x278 [ 212.153832][ T6010] do_new_mount+0x228/0x804 [ 212.154611][ T6010] path_mount+0x57c/0xfe8 [ 212.155404][ T6010] __arm64_sys_mount+0x488/0x5f8 [ 212.156238][ T6010] invoke_syscall+0x98/0x28c [ 212.157072][ T6010] el0_svc_common+0x13c/0x258 [ 212.157895][ T6010] do_el0_svc+0x5c/0x140 [ 212.158652][ T6010] el0_svc+0x78/0x1d0 [ 212.159368][ T6010] el0t_64_sync_handler+0xcc/0xe4 [ 212.160208][ T6010] el0t_64_sync+0x1a0/0x1a4 [ 212.162480][ T6010] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.164893][ T6010] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.297711][ T6012] loop1: detected capacity change from 0 to 32768 [ 212.387020][ T6012] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.388312][ T6012] CPU: 1 PID: 6012 Comm: syz.1.636 Not tainted syzkaller #0 [ 212.389572][ T6012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 212.391245][ T6012] Call trace: [ 212.391819][ T6012] dump_backtrace+0x0/0x458 [ 212.392617][ T6012] show_stack+0x2c/0x3c [ 212.393334][ T6012] __dump_stack+0x30/0x40 [ 212.394067][ T6012] dump_stack_lvl+0xf4/0x15c [ 212.394818][ T6012] dump_stack+0x1c/0x5c [ 212.395510][ T6012] sysfs_create_dir_ns+0x244/0x264 [ 212.396469][ T6012] kobject_add_internal+0x594/0xc2c [ 212.397368][ T6012] kobject_init_and_add+0x128/0x194 [ 212.398280][ T6012] gfs2_sys_fs_add+0x208/0x428 [ 212.399035][ T6012] gfs2_fill_super+0xe20/0x1a9c [ 212.399846][ T6012] get_tree_bdev+0x35c/0x54c [ 212.400532][ T6012] gfs2_get_tree+0x58/0x1b8 [ 212.401178][ T6012] vfs_get_tree+0x90/0x278 [ 212.401894][ T6012] do_new_mount+0x228/0x804 [ 212.402555][ T6012] path_mount+0x57c/0xfe8 [ 212.403276][ T6012] __arm64_sys_mount+0x488/0x5f8 [ 212.404172][ T6012] invoke_syscall+0x98/0x28c [ 212.405017][ T6012] el0_svc_common+0x13c/0x258 [ 212.405821][ T6012] do_el0_svc+0x5c/0x140 [ 212.406544][ T6012] el0_svc+0x78/0x1d0 [ 212.407185][ T6012] el0t_64_sync_handler+0xcc/0xe4 [ 212.408062][ T6012] el0t_64_sync+0x1a0/0x1a4 [ 212.409613][ T6012] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.411663][ T6012] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.539851][ T6014] loop1: detected capacity change from 0 to 32768 [ 212.604953][ T6014] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.606716][ T6014] CPU: 0 PID: 6014 Comm: syz.1.637 Not tainted syzkaller #0 [ 212.607949][ T6014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 212.609575][ T6014] Call trace: [ 212.610084][ T6014] dump_backtrace+0x0/0x458 [ 212.610908][ T6014] show_stack+0x2c/0x3c [ 212.611654][ T6014] __dump_stack+0x30/0x40 [ 212.612545][ T6014] dump_stack_lvl+0xf4/0x15c [ 212.613373][ T6014] dump_stack+0x1c/0x5c [ 212.614105][ T6014] sysfs_create_dir_ns+0x244/0x264 [ 212.614959][ T6014] kobject_add_internal+0x594/0xc2c [ 212.615887][ T6014] kobject_init_and_add+0x128/0x194 [ 212.616732][ T6014] gfs2_sys_fs_add+0x208/0x428 [ 212.617486][ T6014] gfs2_fill_super+0xe20/0x1a9c [ 212.618226][ T6014] get_tree_bdev+0x35c/0x54c [ 212.619029][ T6014] gfs2_get_tree+0x58/0x1b8 [ 212.619860][ T6014] vfs_get_tree+0x90/0x278 [ 212.620598][ T6014] do_new_mount+0x228/0x804 [ 212.621368][ T6014] path_mount+0x57c/0xfe8 [ 212.622145][ T6014] __arm64_sys_mount+0x488/0x5f8 [ 212.623026][ T6014] invoke_syscall+0x98/0x28c [ 212.623846][ T6014] el0_svc_common+0x13c/0x258 [ 212.624789][ T6014] do_el0_svc+0x5c/0x140 [ 212.625556][ T6014] el0_svc+0x78/0x1d0 [ 212.626296][ T6014] el0t_64_sync_handler+0xcc/0xe4 [ 212.627170][ T6014] el0t_64_sync+0x1a0/0x1a4 [ 212.629462][ T6014] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.631703][ T6014] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.673077][ T4171] Bluetooth: hci2: command 0x040f tx timeout [ 212.803951][ T6016] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.805373][ T6016] CPU: 0 PID: 6016 Comm: syz.1.638 Not tainted syzkaller #0 [ 212.806600][ T6016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 212.808376][ T6016] Call trace: [ 212.809032][ T6016] dump_backtrace+0x0/0x458 [ 212.809849][ T6016] show_stack+0x2c/0x3c [ 212.810718][ T6016] __dump_stack+0x30/0x40 [ 212.811548][ T6016] dump_stack_lvl+0xf4/0x15c [ 212.812397][ T6016] dump_stack+0x1c/0x5c [ 212.813228][ T6016] sysfs_create_dir_ns+0x244/0x264 [ 212.814125][ T6016] kobject_add_internal+0x594/0xc2c [ 212.814983][ T6016] kobject_init_and_add+0x128/0x194 [ 212.815946][ T6016] gfs2_sys_fs_add+0x208/0x428 [ 212.816846][ T6016] gfs2_fill_super+0xe20/0x1a9c [ 212.817790][ T6016] get_tree_bdev+0x35c/0x54c [ 212.818629][ T6016] gfs2_get_tree+0x58/0x1b8 [ 212.819399][ T6016] vfs_get_tree+0x90/0x278 [ 212.820142][ T6016] do_new_mount+0x228/0x804 [ 212.820898][ T6016] path_mount+0x57c/0xfe8 [ 212.821615][ T6016] __arm64_sys_mount+0x488/0x5f8 [ 212.822432][ T6016] invoke_syscall+0x98/0x28c [ 212.823258][ T6016] el0_svc_common+0x13c/0x258 [ 212.824074][ T6016] do_el0_svc+0x5c/0x140 [ 212.824808][ T6016] el0_svc+0x78/0x1d0 [ 212.825547][ T6016] el0t_64_sync_handler+0xcc/0xe4 [ 212.826406][ T6016] el0t_64_sync+0x1a0/0x1a4 [ 212.829394][ T6016] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.831561][ T6016] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.003880][ T6018] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.005250][ T6018] CPU: 0 PID: 6018 Comm: syz.1.639 Not tainted syzkaller #0 [ 213.006452][ T6018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 213.008206][ T6018] Call trace: [ 213.008786][ T6018] dump_backtrace+0x0/0x458 [ 213.009569][ T6018] show_stack+0x2c/0x3c [ 213.010242][ T6018] __dump_stack+0x30/0x40 [ 213.011024][ T6018] dump_stack_lvl+0xf4/0x15c [ 213.011841][ T6018] dump_stack+0x1c/0x5c [ 213.012522][ T6018] sysfs_create_dir_ns+0x244/0x264 [ 213.013423][ T6018] kobject_add_internal+0x594/0xc2c [ 213.014372][ T6018] kobject_init_and_add+0x128/0x194 [ 213.015331][ T6018] gfs2_sys_fs_add+0x208/0x428 [ 213.016185][ T6018] gfs2_fill_super+0xe20/0x1a9c [ 213.017061][ T6018] get_tree_bdev+0x35c/0x54c [ 213.017910][ T6018] gfs2_get_tree+0x58/0x1b8 [ 213.018687][ T6018] vfs_get_tree+0x90/0x278 [ 213.019503][ T6018] do_new_mount+0x228/0x804 [ 213.020432][ T6018] path_mount+0x57c/0xfe8 [ 213.021199][ T6018] __arm64_sys_mount+0x488/0x5f8 [ 213.022135][ T6018] invoke_syscall+0x98/0x28c [ 213.023120][ T6018] el0_svc_common+0x13c/0x258 [ 213.024028][ T6018] do_el0_svc+0x5c/0x140 [ 213.024806][ T6018] el0_svc+0x78/0x1d0 [ 213.025481][ T6018] el0t_64_sync_handler+0xcc/0xe4 [ 213.026384][ T6018] el0t_64_sync+0x1a0/0x1a4 [ 213.028753][ T6018] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.030927][ T6018] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.175648][ T6020] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.177058][ T6020] CPU: 0 PID: 6020 Comm: syz.1.640 Not tainted syzkaller #0 [ 213.178397][ T6020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 213.180139][ T6020] Call trace: [ 213.180666][ T6020] dump_backtrace+0x0/0x458 [ 213.181335][ T6020] show_stack+0x2c/0x3c [ 213.182079][ T6020] __dump_stack+0x30/0x40 [ 213.182797][ T6020] dump_stack_lvl+0xf4/0x15c [ 213.183667][ T6020] dump_stack+0x1c/0x5c [ 213.184418][ T6020] sysfs_create_dir_ns+0x244/0x264 [ 213.185251][ T6020] kobject_add_internal+0x594/0xc2c [ 213.186218][ T6020] kobject_init_and_add+0x128/0x194 [ 213.187184][ T6020] gfs2_sys_fs_add+0x208/0x428 [ 213.188033][ T6020] gfs2_fill_super+0xe20/0x1a9c [ 213.189059][ T6020] get_tree_bdev+0x35c/0x54c [ 213.189916][ T6020] gfs2_get_tree+0x58/0x1b8 [ 213.190706][ T6020] vfs_get_tree+0x90/0x278 [ 213.191438][ T6020] do_new_mount+0x228/0x804 [ 213.192172][ T6020] path_mount+0x57c/0xfe8 [ 213.192884][ T6020] __arm64_sys_mount+0x488/0x5f8 [ 213.193684][ T6020] invoke_syscall+0x98/0x28c [ 213.194536][ T6020] el0_svc_common+0x13c/0x258 [ 213.195431][ T6020] do_el0_svc+0x5c/0x140 [ 213.196212][ T6020] el0_svc+0x78/0x1d0 [ 213.196949][ T6020] el0t_64_sync_handler+0xcc/0xe4 [ 213.197884][ T6020] el0t_64_sync+0x1a0/0x1a4 [ 213.200112][ T6020] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.202324][ T6020] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.497202][ T6022] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.498573][ T6022] CPU: 0 PID: 6022 Comm: syz.1.641 Not tainted syzkaller #0 [ 213.499772][ T6022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 213.501412][ T6022] Call trace: [ 213.501946][ T6022] dump_backtrace+0x0/0x458 [ 213.502668][ T6022] show_stack+0x2c/0x3c [ 213.503400][ T6022] __dump_stack+0x30/0x40 [ 213.504160][ T6022] dump_stack_lvl+0xf4/0x15c [ 213.504958][ T6022] dump_stack+0x1c/0x5c [ 213.505696][ T6022] sysfs_create_dir_ns+0x244/0x264 [ 213.506617][ T6022] kobject_add_internal+0x594/0xc2c [ 213.507588][ T6022] kobject_init_and_add+0x128/0x194 [ 213.508552][ T6022] gfs2_sys_fs_add+0x208/0x428 [ 213.509486][ T6022] gfs2_fill_super+0xe20/0x1a9c [ 213.510300][ T6022] get_tree_bdev+0x35c/0x54c [ 213.511069][ T6022] gfs2_get_tree+0x58/0x1b8 [ 213.511862][ T6022] vfs_get_tree+0x90/0x278 [ 213.512618][ T6022] do_new_mount+0x228/0x804 [ 213.513417][ T6022] path_mount+0x57c/0xfe8 [ 213.514165][ T6022] __arm64_sys_mount+0x488/0x5f8 [ 213.515016][ T6022] invoke_syscall+0x98/0x28c [ 213.515796][ T6022] el0_svc_common+0x13c/0x258 [ 213.516645][ T6022] do_el0_svc+0x5c/0x140 [ 213.517375][ T6022] el0_svc+0x78/0x1d0 [ 213.518109][ T6022] el0t_64_sync_handler+0xcc/0xe4 [ 213.518996][ T6022] el0t_64_sync+0x1a0/0x1a4 [ 213.521839][ T6022] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.524240][ T6022] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.704278][ T6024] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.705629][ T6024] CPU: 1 PID: 6024 Comm: syz.1.642 Not tainted syzkaller #0 [ 213.706824][ T6024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 213.708490][ T6024] Call trace: [ 213.709017][ T6024] dump_backtrace+0x0/0x458 [ 213.709803][ T6024] show_stack+0x2c/0x3c [ 213.710546][ T6024] __dump_stack+0x30/0x40 [ 213.711325][ T6024] dump_stack_lvl+0xf4/0x15c [ 213.712131][ T6024] dump_stack+0x1c/0x5c [ 213.712858][ T6024] sysfs_create_dir_ns+0x244/0x264 [ 213.713750][ T6024] kobject_add_internal+0x594/0xc2c [ 213.714592][ T6024] kobject_init_and_add+0x128/0x194 [ 213.715449][ T6024] gfs2_sys_fs_add+0x208/0x428 [ 213.716319][ T6024] gfs2_fill_super+0xe20/0x1a9c [ 213.717194][ T6024] get_tree_bdev+0x35c/0x54c [ 213.718025][ T6024] gfs2_get_tree+0x58/0x1b8 [ 213.718794][ T6024] vfs_get_tree+0x90/0x278 [ 213.719523][ T6024] do_new_mount+0x228/0x804 [ 213.720288][ T6024] path_mount+0x57c/0xfe8 [ 213.720886][ T6024] __arm64_sys_mount+0x488/0x5f8 [ 213.721681][ T6024] invoke_syscall+0x98/0x28c [ 213.722473][ T6024] el0_svc_common+0x13c/0x258 [ 213.723325][ T6024] do_el0_svc+0x5c/0x140 [ 213.724050][ T6024] el0_svc+0x78/0x1d0 [ 213.724756][ T6024] el0t_64_sync_handler+0xcc/0xe4 [ 213.725653][ T6024] el0t_64_sync+0x1a0/0x1a4 [ 213.726648][ T6024] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.728809][ T6024] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.904011][ T6026] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.905453][ T6026] CPU: 0 PID: 6026 Comm: syz.1.643 Not tainted syzkaller #0 [ 213.906825][ T6026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 213.908651][ T6026] Call trace: [ 213.909222][ T6026] dump_backtrace+0x0/0x458 [ 213.910103][ T6026] show_stack+0x2c/0x3c [ 213.910857][ T6026] __dump_stack+0x30/0x40 [ 213.911666][ T6026] dump_stack_lvl+0xf4/0x15c [ 213.912515][ T6026] dump_stack+0x1c/0x5c [ 213.913262][ T6026] sysfs_create_dir_ns+0x244/0x264 [ 213.914182][ T6026] kobject_add_internal+0x594/0xc2c [ 213.915136][ T6026] kobject_init_and_add+0x128/0x194 [ 213.916064][ T6026] gfs2_sys_fs_add+0x208/0x428 [ 213.916941][ T6026] gfs2_fill_super+0xe20/0x1a9c [ 213.917893][ T6026] get_tree_bdev+0x35c/0x54c [ 213.918709][ T6026] gfs2_get_tree+0x58/0x1b8 [ 213.919521][ T6026] vfs_get_tree+0x90/0x278 [ 213.920277][ T6026] do_new_mount+0x228/0x804 [ 213.921117][ T6026] path_mount+0x57c/0xfe8 [ 213.921934][ T6026] __arm64_sys_mount+0x488/0x5f8 [ 213.922865][ T6026] invoke_syscall+0x98/0x28c [ 213.923665][ T6026] el0_svc_common+0x13c/0x258 [ 213.924465][ T6026] do_el0_svc+0x5c/0x140 [ 213.925228][ T6026] el0_svc+0x78/0x1d0 [ 213.925943][ T6026] el0t_64_sync_handler+0xcc/0xe4 [ 213.926859][ T6026] el0t_64_sync+0x1a0/0x1a4 [ 213.929173][ T6026] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.931418][ T6026] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.157372][ T6028] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.158676][ T6028] CPU: 0 PID: 6028 Comm: syz.1.644 Not tainted syzkaller #0 [ 214.159865][ T6028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 214.161582][ T6028] Call trace: [ 214.162197][ T6028] dump_backtrace+0x0/0x458 [ 214.163045][ T6028] show_stack+0x2c/0x3c [ 214.163829][ T6028] __dump_stack+0x30/0x40 [ 214.164672][ T6028] dump_stack_lvl+0xf4/0x15c [ 214.165468][ T6028] dump_stack+0x1c/0x5c [ 214.166105][ T6028] sysfs_create_dir_ns+0x244/0x264 [ 214.166959][ T6028] kobject_add_internal+0x594/0xc2c [ 214.167889][ T6028] kobject_init_and_add+0x128/0x194 [ 214.168823][ T6028] gfs2_sys_fs_add+0x208/0x428 [ 214.169742][ T6028] gfs2_fill_super+0xe20/0x1a9c [ 214.170676][ T6028] get_tree_bdev+0x35c/0x54c [ 214.171584][ T6028] gfs2_get_tree+0x58/0x1b8 [ 214.172414][ T6028] vfs_get_tree+0x90/0x278 [ 214.173196][ T6028] do_new_mount+0x228/0x804 [ 214.173969][ T6028] path_mount+0x57c/0xfe8 [ 214.174716][ T6028] __arm64_sys_mount+0x488/0x5f8 [ 214.175554][ T6028] invoke_syscall+0x98/0x28c [ 214.176347][ T6028] el0_svc_common+0x13c/0x258 [ 214.177157][ T6028] do_el0_svc+0x5c/0x140 [ 214.177925][ T6028] el0_svc+0x78/0x1d0 [ 214.178614][ T6028] el0t_64_sync_handler+0xcc/0xe4 [ 214.179395][ T6028] el0t_64_sync+0x1a0/0x1a4 [ 214.182423][ T6028] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.184786][ T6028] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.398452][ T6030] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.399781][ T6030] CPU: 0 PID: 6030 Comm: syz.1.645 Not tainted syzkaller #0 [ 214.400983][ T6030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 214.402704][ T6030] Call trace: [ 214.403335][ T6030] dump_backtrace+0x0/0x458 [ 214.404177][ T6030] show_stack+0x2c/0x3c [ 214.404901][ T6030] __dump_stack+0x30/0x40 [ 214.405654][ T6030] dump_stack_lvl+0xf4/0x15c [ 214.406606][ T6030] dump_stack+0x1c/0x5c [ 214.407343][ T6030] sysfs_create_dir_ns+0x244/0x264 [ 214.408373][ T6030] kobject_add_internal+0x594/0xc2c [ 214.409287][ T6030] kobject_init_and_add+0x128/0x194 [ 214.410299][ T6030] gfs2_sys_fs_add+0x208/0x428 [ 214.411229][ T6030] gfs2_fill_super+0xe20/0x1a9c [ 214.412144][ T6030] get_tree_bdev+0x35c/0x54c [ 214.413120][ T6030] gfs2_get_tree+0x58/0x1b8 [ 214.414070][ T6030] vfs_get_tree+0x90/0x278 [ 214.414909][ T6030] do_new_mount+0x228/0x804 [ 214.415734][ T6030] path_mount+0x57c/0xfe8 [ 214.416540][ T6030] __arm64_sys_mount+0x488/0x5f8 [ 214.417540][ T6030] invoke_syscall+0x98/0x28c [ 214.418394][ T6030] el0_svc_common+0x13c/0x258 [ 214.419252][ T6030] do_el0_svc+0x5c/0x140 [ 214.420035][ T6030] el0_svc+0x78/0x1d0 [ 214.420815][ T6030] el0t_64_sync_handler+0xcc/0xe4 [ 214.421753][ T6030] el0t_64_sync+0x1a0/0x1a4 [ 214.424277][ T6030] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.426585][ T6030] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.647429][ T6032] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.648758][ T6032] CPU: 0 PID: 6032 Comm: syz.1.646 Not tainted syzkaller #0 [ 214.650085][ T6032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 214.651913][ T6032] Call trace: [ 214.652513][ T6032] dump_backtrace+0x0/0x458 [ 214.653444][ T6032] show_stack+0x2c/0x3c [ 214.654331][ T6032] __dump_stack+0x30/0x40 [ 214.655229][ T6032] dump_stack_lvl+0xf4/0x15c [ 214.656174][ T6032] dump_stack+0x1c/0x5c [ 214.657020][ T6032] sysfs_create_dir_ns+0x244/0x264 [ 214.657911][ T6032] kobject_add_internal+0x594/0xc2c [ 214.658822][ T6032] kobject_init_and_add+0x128/0x194 [ 214.659707][ T6032] gfs2_sys_fs_add+0x208/0x428 [ 214.660519][ T6032] gfs2_fill_super+0xe20/0x1a9c [ 214.661362][ T6032] get_tree_bdev+0x35c/0x54c [ 214.662296][ T6032] gfs2_get_tree+0x58/0x1b8 [ 214.663064][ T6032] vfs_get_tree+0x90/0x278 [ 214.663880][ T6032] do_new_mount+0x228/0x804 [ 214.664710][ T6032] path_mount+0x57c/0xfe8 [ 214.665478][ T6032] __arm64_sys_mount+0x488/0x5f8 [ 214.666386][ T6032] invoke_syscall+0x98/0x28c [ 214.667137][ T6032] el0_svc_common+0x13c/0x258 [ 214.667936][ T6032] do_el0_svc+0x5c/0x140 [ 214.668687][ T6032] el0_svc+0x78/0x1d0 [ 214.669409][ T6032] el0t_64_sync_handler+0xcc/0xe4 [ 214.670256][ T6032] el0t_64_sync+0x1a0/0x1a4 [ 214.671981][ T6032] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.674509][ T6032] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.742724][ T4539] Bluetooth: hci2: command 0x0419 tx timeout [ 214.815024][ T6034] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.816476][ T6034] CPU: 1 PID: 6034 Comm: syz.1.647 Not tainted syzkaller #0 [ 214.817852][ T6034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 214.819697][ T6034] Call trace: [ 214.820291][ T6034] dump_backtrace+0x0/0x458 [ 214.821123][ T6034] show_stack+0x2c/0x3c [ 214.821890][ T6034] __dump_stack+0x30/0x40 [ 214.822569][ T6034] dump_stack_lvl+0xf4/0x15c [ 214.823381][ T6034] dump_stack+0x1c/0x5c [ 214.824143][ T6034] sysfs_create_dir_ns+0x244/0x264 [ 214.825006][ T6034] kobject_add_internal+0x594/0xc2c [ 214.825838][ T6034] kobject_init_and_add+0x128/0x194 [ 214.826722][ T6034] gfs2_sys_fs_add+0x208/0x428 [ 214.827570][ T6034] gfs2_fill_super+0xe20/0x1a9c [ 214.828445][ T6034] get_tree_bdev+0x35c/0x54c [ 214.829305][ T6034] gfs2_get_tree+0x58/0x1b8 [ 214.830075][ T6034] vfs_get_tree+0x90/0x278 [ 214.830879][ T6034] do_new_mount+0x228/0x804 [ 214.831581][ T6034] path_mount+0x57c/0xfe8 [ 214.832272][ T6034] __arm64_sys_mount+0x488/0x5f8 [ 214.833021][ T6034] invoke_syscall+0x98/0x28c [ 214.833747][ T6034] el0_svc_common+0x13c/0x258 [ 214.834558][ T6034] do_el0_svc+0x5c/0x140 [ 214.835320][ T6034] el0_svc+0x78/0x1d0 [ 214.836008][ T6034] el0t_64_sync_handler+0xcc/0xe4 [ 214.836762][ T6034] el0t_64_sync+0x1a0/0x1a4 [ 214.837635][ T6034] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.839762][ T6034] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.023912][ T6036] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.025258][ T6036] CPU: 0 PID: 6036 Comm: syz.1.648 Not tainted syzkaller #0 [ 215.026624][ T6036] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 215.028318][ T6036] Call trace: [ 215.028905][ T6036] dump_backtrace+0x0/0x458 [ 215.029761][ T6036] show_stack+0x2c/0x3c [ 215.030512][ T6036] __dump_stack+0x30/0x40 [ 215.031342][ T6036] dump_stack_lvl+0xf4/0x15c [ 215.032173][ T6036] dump_stack+0x1c/0x5c [ 215.032952][ T6036] sysfs_create_dir_ns+0x244/0x264 [ 215.033895][ T6036] kobject_add_internal+0x594/0xc2c [ 215.034824][ T6036] kobject_init_and_add+0x128/0x194 [ 215.035735][ T6036] gfs2_sys_fs_add+0x208/0x428 [ 215.036608][ T6036] gfs2_fill_super+0xe20/0x1a9c [ 215.037458][ T6036] get_tree_bdev+0x35c/0x54c [ 215.038304][ T6036] gfs2_get_tree+0x58/0x1b8 [ 215.039119][ T6036] vfs_get_tree+0x90/0x278 [ 215.039936][ T6036] do_new_mount+0x228/0x804 [ 215.040750][ T6036] path_mount+0x57c/0xfe8 [ 215.041466][ T6036] __arm64_sys_mount+0x488/0x5f8 [ 215.042336][ T6036] invoke_syscall+0x98/0x28c [ 215.043114][ T6036] el0_svc_common+0x13c/0x258 [ 215.043955][ T6036] do_el0_svc+0x5c/0x140 [ 215.044687][ T6036] el0_svc+0x78/0x1d0 [ 215.045363][ T6036] el0t_64_sync_handler+0xcc/0xe4 [ 215.046217][ T6036] el0t_64_sync+0x1a0/0x1a4 [ 215.048333][ T6036] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.050453][ T6036] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.191094][ T6038] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.192362][ T6038] CPU: 1 PID: 6038 Comm: syz.1.649 Not tainted syzkaller #0 [ 215.193836][ T6038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 215.195785][ T6038] Call trace: [ 215.196341][ T6038] dump_backtrace+0x0/0x458 [ 215.197116][ T6038] show_stack+0x2c/0x3c [ 215.197845][ T6038] __dump_stack+0x30/0x40 [ 215.198571][ T6038] dump_stack_lvl+0xf4/0x15c [ 215.199343][ T6038] dump_stack+0x1c/0x5c [ 215.199985][ T6038] sysfs_create_dir_ns+0x244/0x264 [ 215.200836][ T6038] kobject_add_internal+0x594/0xc2c [ 215.201696][ T6038] kobject_init_and_add+0x128/0x194 [ 215.202513][ T6038] gfs2_sys_fs_add+0x208/0x428 [ 215.203281][ T6038] gfs2_fill_super+0xe20/0x1a9c [ 215.204074][ T6038] get_tree_bdev+0x35c/0x54c [ 215.204821][ T6038] gfs2_get_tree+0x58/0x1b8 [ 215.205615][ T6038] vfs_get_tree+0x90/0x278 [ 215.206345][ T6038] do_new_mount+0x228/0x804 [ 215.207060][ T6038] path_mount+0x57c/0xfe8 [ 215.207905][ T6038] __arm64_sys_mount+0x488/0x5f8 [ 215.208760][ T6038] invoke_syscall+0x98/0x28c [ 215.209512][ T6038] el0_svc_common+0x13c/0x258 [ 215.210273][ T6038] do_el0_svc+0x5c/0x140 [ 215.210968][ T6038] el0_svc+0x78/0x1d0 [ 215.211634][ T6038] el0t_64_sync_handler+0xcc/0xe4 [ 215.212459][ T6038] el0t_64_sync+0x1a0/0x1a4 [ 215.213268][ T6038] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.215267][ T6038] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.356305][ T6040] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.357711][ T6040] CPU: 1 PID: 6040 Comm: syz.1.650 Not tainted syzkaller #0 [ 215.358945][ T6040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 215.360603][ T6040] Call trace: [ 215.361169][ T6040] dump_backtrace+0x0/0x458 [ 215.361969][ T6040] show_stack+0x2c/0x3c [ 215.362758][ T6040] __dump_stack+0x30/0x40 [ 215.363618][ T6040] dump_stack_lvl+0xf4/0x15c [ 215.364545][ T6040] dump_stack+0x1c/0x5c [ 215.365309][ T6040] sysfs_create_dir_ns+0x244/0x264 [ 215.366346][ T6040] kobject_add_internal+0x594/0xc2c [ 215.367300][ T6040] kobject_init_and_add+0x128/0x194 [ 215.368206][ T6040] gfs2_sys_fs_add+0x208/0x428 [ 215.369034][ T6040] gfs2_fill_super+0xe20/0x1a9c [ 215.369879][ T6040] get_tree_bdev+0x35c/0x54c [ 215.370810][ T6040] gfs2_get_tree+0x58/0x1b8 [ 215.371598][ T6040] vfs_get_tree+0x90/0x278 [ 215.372362][ T6040] do_new_mount+0x228/0x804 [ 215.373193][ T6040] path_mount+0x57c/0xfe8 [ 215.373950][ T6040] __arm64_sys_mount+0x488/0x5f8 [ 215.374817][ T6040] invoke_syscall+0x98/0x28c [ 215.375608][ T6040] el0_svc_common+0x13c/0x258 [ 215.376373][ T6040] do_el0_svc+0x5c/0x140 [ 215.377120][ T6040] el0_svc+0x78/0x1d0 [ 215.377792][ T6040] el0t_64_sync_handler+0xcc/0xe4 [ 215.378674][ T6040] el0t_64_sync+0x1a0/0x1a4 [ 215.379782][ T6040] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.381811][ T6040] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:35 executed programs: 636 [ 215.517101][ T6042] set_capacity_and_notify: 13 callbacks suppressed [ 215.517111][ T6042] loop1: detected capacity change from 0 to 32768 [ 215.526096][ T6042] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.527360][ T6042] CPU: 0 PID: 6042 Comm: syz.1.651 Not tainted syzkaller #0 [ 215.528612][ T6042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 215.530440][ T6042] Call trace: [ 215.531129][ T6042] dump_backtrace+0x0/0x458 [ 215.532028][ T6042] show_stack+0x2c/0x3c [ 215.532748][ T6042] __dump_stack+0x30/0x40 [ 215.533640][ T6042] dump_stack_lvl+0xf4/0x15c [ 215.534497][ T6042] dump_stack+0x1c/0x5c [ 215.535246][ T6042] sysfs_create_dir_ns+0x244/0x264 [ 215.536142][ T6042] kobject_add_internal+0x594/0xc2c [ 215.537072][ T6042] kobject_init_and_add+0x128/0x194 [ 215.537976][ T6042] gfs2_sys_fs_add+0x208/0x428 [ 215.538812][ T6042] gfs2_fill_super+0xe20/0x1a9c [ 215.539693][ T6042] get_tree_bdev+0x35c/0x54c [ 215.540495][ T6042] gfs2_get_tree+0x58/0x1b8 [ 215.541327][ T6042] vfs_get_tree+0x90/0x278 [ 215.542114][ T6042] do_new_mount+0x228/0x804 [ 215.542896][ T6042] path_mount+0x57c/0xfe8 [ 215.543684][ T6042] __arm64_sys_mount+0x488/0x5f8 [ 215.544579][ T6042] invoke_syscall+0x98/0x28c [ 215.545394][ T6042] el0_svc_common+0x13c/0x258 [ 215.546180][ T6042] do_el0_svc+0x5c/0x140 [ 215.546995][ T6042] el0_svc+0x78/0x1d0 [ 215.547678][ T6042] el0t_64_sync_handler+0xcc/0xe4 [ 215.548538][ T6042] el0t_64_sync+0x1a0/0x1a4 [ 215.549554][ T6042] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.551794][ T6042] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.682616][ T6044] loop1: detected capacity change from 0 to 32768 [ 215.754959][ T6044] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.756441][ T6044] CPU: 0 PID: 6044 Comm: syz.1.652 Not tainted syzkaller #0 [ 215.757741][ T6044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 215.759382][ T6044] Call trace: [ 215.759930][ T6044] dump_backtrace+0x0/0x458 [ 215.760609][ T6044] show_stack+0x2c/0x3c [ 215.761398][ T6044] __dump_stack+0x30/0x40 [ 215.762215][ T6044] dump_stack_lvl+0xf4/0x15c [ 215.763134][ T6044] dump_stack+0x1c/0x5c [ 215.763991][ T6044] sysfs_create_dir_ns+0x244/0x264 [ 215.765029][ T6044] kobject_add_internal+0x594/0xc2c [ 215.765982][ T6044] kobject_init_and_add+0x128/0x194 [ 215.766847][ T6044] gfs2_sys_fs_add+0x208/0x428 [ 215.767655][ T6044] gfs2_fill_super+0xe20/0x1a9c [ 215.768612][ T6044] get_tree_bdev+0x35c/0x54c [ 215.769431][ T6044] gfs2_get_tree+0x58/0x1b8 [ 215.770176][ T6044] vfs_get_tree+0x90/0x278 [ 215.770922][ T6044] do_new_mount+0x228/0x804 [ 215.771730][ T6044] path_mount+0x57c/0xfe8 [ 215.772462][ T6044] __arm64_sys_mount+0x488/0x5f8 [ 215.773353][ T6044] invoke_syscall+0x98/0x28c [ 215.774125][ T6044] el0_svc_common+0x13c/0x258 [ 215.774965][ T6044] do_el0_svc+0x5c/0x140 [ 215.775720][ T6044] el0_svc+0x78/0x1d0 [ 215.776406][ T6044] el0t_64_sync_handler+0xcc/0xe4 [ 215.777260][ T6044] el0t_64_sync+0x1a0/0x1a4 [ 215.778673][ T6044] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.781275][ T6044] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.032114][ T6046] loop1: detected capacity change from 0 to 32768 [ 216.076794][ T6046] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.077936][ T6046] CPU: 0 PID: 6046 Comm: syz.1.653 Not tainted syzkaller #0 [ 216.079164][ T6046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 216.080813][ T6046] Call trace: [ 216.081377][ T6046] dump_backtrace+0x0/0x458 [ 216.082084][ T6046] show_stack+0x2c/0x3c [ 216.082975][ T6046] __dump_stack+0x30/0x40 [ 216.083752][ T6046] dump_stack_lvl+0xf4/0x15c [ 216.084541][ T6046] dump_stack+0x1c/0x5c [ 216.085302][ T6046] sysfs_create_dir_ns+0x244/0x264 [ 216.086293][ T6046] kobject_add_internal+0x594/0xc2c [ 216.087204][ T6046] kobject_init_and_add+0x128/0x194 [ 216.088085][ T6046] gfs2_sys_fs_add+0x208/0x428 [ 216.088943][ T6046] gfs2_fill_super+0xe20/0x1a9c [ 216.089833][ T6046] get_tree_bdev+0x35c/0x54c [ 216.090658][ T6046] gfs2_get_tree+0x58/0x1b8 [ 216.091451][ T6046] vfs_get_tree+0x90/0x278 [ 216.092365][ T6046] do_new_mount+0x228/0x804 [ 216.094685][ T6046] path_mount+0x57c/0xfe8 [ 216.095476][ T6046] __arm64_sys_mount+0x488/0x5f8 [ 216.096357][ T6046] invoke_syscall+0x98/0x28c [ 216.097149][ T6046] el0_svc_common+0x13c/0x258 [ 216.098023][ T6046] do_el0_svc+0x5c/0x140 [ 216.098768][ T6046] el0_svc+0x78/0x1d0 [ 216.099432][ T6046] el0t_64_sync_handler+0xcc/0xe4 [ 216.100267][ T6046] el0t_64_sync+0x1a0/0x1a4 [ 216.101922][ T6046] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.104391][ T6046] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.351093][ T6048] loop1: detected capacity change from 0 to 32768 [ 216.399734][ T6048] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.401110][ T6048] CPU: 1 PID: 6048 Comm: syz.1.654 Not tainted syzkaller #0 [ 216.402380][ T6048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 216.404066][ T6048] Call trace: [ 216.404627][ T6048] dump_backtrace+0x0/0x458 [ 216.405404][ T6048] show_stack+0x2c/0x3c [ 216.406076][ T6048] __dump_stack+0x30/0x40 [ 216.406842][ T6048] dump_stack_lvl+0xf4/0x15c [ 216.407623][ T6048] dump_stack+0x1c/0x5c [ 216.408348][ T6048] sysfs_create_dir_ns+0x244/0x264 [ 216.409144][ T6048] kobject_add_internal+0x594/0xc2c [ 216.409997][ T6048] kobject_init_and_add+0x128/0x194 [ 216.410845][ T6048] gfs2_sys_fs_add+0x208/0x428 [ 216.411690][ T6048] gfs2_fill_super+0xe20/0x1a9c [ 216.412566][ T6048] get_tree_bdev+0x35c/0x54c [ 216.413355][ T6048] gfs2_get_tree+0x58/0x1b8 [ 216.414216][ T6048] vfs_get_tree+0x90/0x278 [ 216.414997][ T6048] do_new_mount+0x228/0x804 [ 216.415796][ T6048] path_mount+0x57c/0xfe8 [ 216.416481][ T6048] __arm64_sys_mount+0x488/0x5f8 [ 216.417311][ T6048] invoke_syscall+0x98/0x28c [ 216.418101][ T6048] el0_svc_common+0x13c/0x258 [ 216.418839][ T6048] do_el0_svc+0x5c/0x140 [ 216.419578][ T6048] el0_svc+0x78/0x1d0 [ 216.420228][ T6048] el0t_64_sync_handler+0xcc/0xe4 [ 216.421033][ T6048] el0t_64_sync+0x1a0/0x1a4 [ 216.423277][ T6048] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.425395][ T6048] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.559282][ T6050] loop1: detected capacity change from 0 to 32768 [ 216.567466][ T6050] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.568688][ T6050] CPU: 1 PID: 6050 Comm: syz.1.655 Not tainted syzkaller #0 [ 216.569892][ T6050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 216.571485][ T6050] Call trace: [ 216.571987][ T6050] dump_backtrace+0x0/0x458 [ 216.572681][ T6050] show_stack+0x2c/0x3c [ 216.573414][ T6050] __dump_stack+0x30/0x40 [ 216.574143][ T6050] dump_stack_lvl+0xf4/0x15c [ 216.575017][ T6050] dump_stack+0x1c/0x5c [ 216.575846][ T6050] sysfs_create_dir_ns+0x244/0x264 [ 216.576717][ T6050] kobject_add_internal+0x594/0xc2c [ 216.577663][ T6050] kobject_init_and_add+0x128/0x194 [ 216.578695][ T6050] gfs2_sys_fs_add+0x208/0x428 [ 216.579497][ T6050] gfs2_fill_super+0xe20/0x1a9c [ 216.580361][ T6050] get_tree_bdev+0x35c/0x54c [ 216.581150][ T6050] gfs2_get_tree+0x58/0x1b8 [ 216.581931][ T6050] vfs_get_tree+0x90/0x278 [ 216.582702][ T6050] do_new_mount+0x228/0x804 [ 216.583460][ T6050] path_mount+0x57c/0xfe8 [ 216.584190][ T6050] __arm64_sys_mount+0x488/0x5f8 [ 216.585046][ T6050] invoke_syscall+0x98/0x28c [ 216.585929][ T6050] el0_svc_common+0x13c/0x258 [ 216.586695][ T6050] do_el0_svc+0x5c/0x140 [ 216.587461][ T6050] el0_svc+0x78/0x1d0 [ 216.588145][ T6050] el0t_64_sync_handler+0xcc/0xe4 [ 216.589096][ T6050] el0t_64_sync+0x1a0/0x1a4 [ 216.590186][ T6050] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.592678][ T6050] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.732558][ T6052] loop1: detected capacity change from 0 to 32768 [ 216.740333][ T6052] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.741775][ T6052] CPU: 0 PID: 6052 Comm: syz.1.656 Not tainted syzkaller #0 [ 216.743171][ T6052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 216.745031][ T6052] Call trace: [ 216.745553][ T6052] dump_backtrace+0x0/0x458 [ 216.746350][ T6052] show_stack+0x2c/0x3c [ 216.747118][ T6052] __dump_stack+0x30/0x40 [ 216.747896][ T6052] dump_stack_lvl+0xf4/0x15c [ 216.748696][ T6052] dump_stack+0x1c/0x5c [ 216.749576][ T6052] sysfs_create_dir_ns+0x244/0x264 [ 216.750523][ T6052] kobject_add_internal+0x594/0xc2c [ 216.751451][ T6052] kobject_init_and_add+0x128/0x194 [ 216.752323][ T6052] gfs2_sys_fs_add+0x208/0x428 [ 216.753109][ T6052] gfs2_fill_super+0xe20/0x1a9c [ 216.753993][ T6052] get_tree_bdev+0x35c/0x54c [ 216.754785][ T6052] gfs2_get_tree+0x58/0x1b8 [ 216.755603][ T6052] vfs_get_tree+0x90/0x278 [ 216.756375][ T6052] do_new_mount+0x228/0x804 [ 216.757283][ T6052] path_mount+0x57c/0xfe8 [ 216.758154][ T6052] __arm64_sys_mount+0x488/0x5f8 [ 216.759026][ T6052] invoke_syscall+0x98/0x28c [ 216.759828][ T6052] el0_svc_common+0x13c/0x258 [ 216.760687][ T6052] do_el0_svc+0x5c/0x140 [ 216.761440][ T6052] el0_svc+0x78/0x1d0 [ 216.762134][ T6052] el0t_64_sync_handler+0xcc/0xe4 [ 216.763046][ T6052] el0t_64_sync+0x1a0/0x1a4 [ 216.766030][ T6052] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.768245][ T6052] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.900636][ T6054] loop1: detected capacity change from 0 to 32768 [ 216.987515][ T6054] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.989082][ T6054] CPU: 0 PID: 6054 Comm: syz.1.657 Not tainted syzkaller #0 [ 216.990237][ T6054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 216.991774][ T6054] Call trace: [ 216.992280][ T6054] dump_backtrace+0x0/0x458 [ 216.993127][ T6054] show_stack+0x2c/0x3c [ 216.994040][ T6054] __dump_stack+0x30/0x40 [ 216.994818][ T6054] dump_stack_lvl+0xf4/0x15c [ 216.995612][ T6054] dump_stack+0x1c/0x5c [ 216.996326][ T6054] sysfs_create_dir_ns+0x244/0x264 [ 216.997251][ T6054] kobject_add_internal+0x594/0xc2c [ 216.998136][ T6054] kobject_init_and_add+0x128/0x194 [ 216.999072][ T6054] gfs2_sys_fs_add+0x208/0x428 [ 216.999906][ T6054] gfs2_fill_super+0xe20/0x1a9c [ 217.000726][ T6054] get_tree_bdev+0x35c/0x54c [ 217.001539][ T6054] gfs2_get_tree+0x58/0x1b8 [ 217.002355][ T6054] vfs_get_tree+0x90/0x278 [ 217.003201][ T6054] do_new_mount+0x228/0x804 [ 217.003987][ T6054] path_mount+0x57c/0xfe8 [ 217.004780][ T6054] __arm64_sys_mount+0x488/0x5f8 [ 217.005691][ T6054] invoke_syscall+0x98/0x28c [ 217.006465][ T6054] el0_svc_common+0x13c/0x258 [ 217.007264][ T6054] do_el0_svc+0x5c/0x140 [ 217.008025][ T6054] el0_svc+0x78/0x1d0 [ 217.008761][ T6054] el0t_64_sync_handler+0xcc/0xe4 [ 217.009705][ T6054] el0t_64_sync+0x1a0/0x1a4 [ 217.012053][ T6054] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.014478][ T6054] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.145688][ T6056] loop1: detected capacity change from 0 to 32768 [ 217.184097][ T6056] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.185509][ T6056] CPU: 1 PID: 6056 Comm: syz.1.658 Not tainted syzkaller #0 [ 217.186699][ T6056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 217.188458][ T6056] Call trace: [ 217.189018][ T6056] dump_backtrace+0x0/0x458 [ 217.189817][ T6056] show_stack+0x2c/0x3c [ 217.190560][ T6056] __dump_stack+0x30/0x40 [ 217.191254][ T6056] dump_stack_lvl+0xf4/0x15c [ 217.191998][ T6056] dump_stack+0x1c/0x5c [ 217.192656][ T6056] sysfs_create_dir_ns+0x244/0x264 [ 217.193475][ T6056] kobject_add_internal+0x594/0xc2c [ 217.194293][ T6056] kobject_init_and_add+0x128/0x194 [ 217.195164][ T6056] gfs2_sys_fs_add+0x208/0x428 [ 217.195920][ T6056] gfs2_fill_super+0xe20/0x1a9c [ 217.196712][ T6056] get_tree_bdev+0x35c/0x54c [ 217.197434][ T6056] gfs2_get_tree+0x58/0x1b8 [ 217.198212][ T6056] vfs_get_tree+0x90/0x278 [ 217.198870][ T6056] do_new_mount+0x228/0x804 [ 217.199696][ T6056] path_mount+0x57c/0xfe8 [ 217.200475][ T6056] __arm64_sys_mount+0x488/0x5f8 [ 217.201299][ T6056] invoke_syscall+0x98/0x28c [ 217.202083][ T6056] el0_svc_common+0x13c/0x258 [ 217.202889][ T6056] do_el0_svc+0x5c/0x140 [ 217.203671][ T6056] el0_svc+0x78/0x1d0 [ 217.204358][ T6056] el0t_64_sync_handler+0xcc/0xe4 [ 217.205153][ T6056] el0t_64_sync+0x1a0/0x1a4 [ 217.206043][ T6056] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.208154][ T6056] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.338406][ T6058] loop1: detected capacity change from 0 to 32768 [ 217.373915][ T6058] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.375292][ T6058] CPU: 0 PID: 6058 Comm: syz.1.659 Not tainted syzkaller #0 [ 217.376543][ T6058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 217.378203][ T6058] Call trace: [ 217.378798][ T6058] dump_backtrace+0x0/0x458 [ 217.379683][ T6058] show_stack+0x2c/0x3c [ 217.380391][ T6058] __dump_stack+0x30/0x40 [ 217.381180][ T6058] dump_stack_lvl+0xf4/0x15c [ 217.382011][ T6058] dump_stack+0x1c/0x5c [ 217.382788][ T6058] sysfs_create_dir_ns+0x244/0x264 [ 217.383742][ T6058] kobject_add_internal+0x594/0xc2c [ 217.384758][ T6058] kobject_init_and_add+0x128/0x194 [ 217.385651][ T6058] gfs2_sys_fs_add+0x208/0x428 [ 217.386506][ T6058] gfs2_fill_super+0xe20/0x1a9c [ 217.387472][ T6058] get_tree_bdev+0x35c/0x54c [ 217.388430][ T6058] gfs2_get_tree+0x58/0x1b8 [ 217.389336][ T6058] vfs_get_tree+0x90/0x278 [ 217.390058][ T6058] do_new_mount+0x228/0x804 [ 217.390903][ T6058] path_mount+0x57c/0xfe8 [ 217.391652][ T6058] __arm64_sys_mount+0x488/0x5f8 [ 217.392588][ T6058] invoke_syscall+0x98/0x28c [ 217.393415][ T6058] el0_svc_common+0x13c/0x258 [ 217.394235][ T6058] do_el0_svc+0x5c/0x140 [ 217.394948][ T6058] el0_svc+0x78/0x1d0 [ 217.395692][ T6058] el0t_64_sync_handler+0xcc/0xe4 [ 217.396580][ T6058] el0t_64_sync+0x1a0/0x1a4 [ 217.398150][ T6058] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.400377][ T6058] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.533347][ T6060] loop1: detected capacity change from 0 to 32768 [ 217.540442][ T6060] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.541684][ T6060] CPU: 1 PID: 6060 Comm: syz.1.660 Not tainted syzkaller #0 [ 217.542933][ T6060] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 217.544658][ T6060] Call trace: [ 217.545199][ T6060] dump_backtrace+0x0/0x458 [ 217.545990][ T6060] show_stack+0x2c/0x3c [ 217.546730][ T6060] __dump_stack+0x30/0x40 [ 217.547505][ T6060] dump_stack_lvl+0xf4/0x15c [ 217.548311][ T6060] dump_stack+0x1c/0x5c [ 217.549070][ T6060] sysfs_create_dir_ns+0x244/0x264 [ 217.549960][ T6060] kobject_add_internal+0x594/0xc2c [ 217.550885][ T6060] kobject_init_and_add+0x128/0x194 [ 217.551840][ T6060] gfs2_sys_fs_add+0x208/0x428 [ 217.552691][ T6060] gfs2_fill_super+0xe20/0x1a9c [ 217.553666][ T6060] get_tree_bdev+0x35c/0x54c [ 217.554561][ T6060] gfs2_get_tree+0x58/0x1b8 [ 217.555325][ T6060] vfs_get_tree+0x90/0x278 [ 217.556059][ T6060] do_new_mount+0x228/0x804 [ 217.556859][ T6060] path_mount+0x57c/0xfe8 [ 217.557567][ T6060] __arm64_sys_mount+0x488/0x5f8 [ 217.558478][ T6060] invoke_syscall+0x98/0x28c [ 217.559282][ T6060] el0_svc_common+0x13c/0x258 [ 217.560126][ T6060] do_el0_svc+0x5c/0x140 [ 217.560867][ T6060] el0_svc+0x78/0x1d0 [ 217.561521][ T6060] el0t_64_sync_handler+0xcc/0xe4 [ 217.562387][ T6060] el0t_64_sync+0x1a0/0x1a4 [ 217.563345][ T6060] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.565534][ T6060] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.708871][ T6062] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.710123][ T6062] CPU: 0 PID: 6062 Comm: syz.1.661 Not tainted syzkaller #0 [ 217.711304][ T6062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 217.712976][ T6062] Call trace: [ 217.713549][ T6062] dump_backtrace+0x0/0x458 [ 217.714613][ T6062] show_stack+0x2c/0x3c [ 217.715342][ T6062] __dump_stack+0x30/0x40 [ 217.716123][ T6062] dump_stack_lvl+0xf4/0x15c [ 217.716888][ T6062] dump_stack+0x1c/0x5c [ 217.717632][ T6062] sysfs_create_dir_ns+0x244/0x264 [ 217.718561][ T6062] kobject_add_internal+0x594/0xc2c [ 217.719520][ T6062] kobject_init_and_add+0x128/0x194 [ 217.720494][ T6062] gfs2_sys_fs_add+0x208/0x428 [ 217.721407][ T6062] gfs2_fill_super+0xe20/0x1a9c [ 217.722281][ T6062] get_tree_bdev+0x35c/0x54c [ 217.723100][ T6062] gfs2_get_tree+0x58/0x1b8 [ 217.723910][ T6062] vfs_get_tree+0x90/0x278 [ 217.724742][ T6062] do_new_mount+0x228/0x804 [ 217.725541][ T6062] path_mount+0x57c/0xfe8 [ 217.726285][ T6062] __arm64_sys_mount+0x488/0x5f8 [ 217.727166][ T6062] invoke_syscall+0x98/0x28c [ 217.727938][ T6062] el0_svc_common+0x13c/0x258 [ 217.728708][ T6062] do_el0_svc+0x5c/0x140 [ 217.729525][ T6062] el0_svc+0x78/0x1d0 [ 217.730245][ T6062] el0t_64_sync_handler+0xcc/0xe4 [ 217.731164][ T6062] el0t_64_sync+0x1a0/0x1a4 [ 217.732286][ T6062] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.734732][ T6062] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.903869][ T6064] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.905181][ T6064] CPU: 0 PID: 6064 Comm: syz.1.662 Not tainted syzkaller #0 [ 217.906424][ T6064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 217.908109][ T6064] Call trace: [ 217.908712][ T6064] dump_backtrace+0x0/0x458 [ 217.909504][ T6064] show_stack+0x2c/0x3c [ 217.910184][ T6064] __dump_stack+0x30/0x40 [ 217.910919][ T6064] dump_stack_lvl+0xf4/0x15c [ 217.911701][ T6064] dump_stack+0x1c/0x5c [ 217.912353][ T6064] sysfs_create_dir_ns+0x244/0x264 [ 217.913217][ T6064] kobject_add_internal+0x594/0xc2c [ 217.914128][ T6064] kobject_init_and_add+0x128/0x194 [ 217.915054][ T6064] gfs2_sys_fs_add+0x208/0x428 [ 217.915949][ T6064] gfs2_fill_super+0xe20/0x1a9c [ 217.916856][ T6064] get_tree_bdev+0x35c/0x54c [ 217.917628][ T6064] gfs2_get_tree+0x58/0x1b8 [ 217.918381][ T6064] vfs_get_tree+0x90/0x278 [ 217.919183][ T6064] do_new_mount+0x228/0x804 [ 217.920007][ T6064] path_mount+0x57c/0xfe8 [ 217.920772][ T6064] __arm64_sys_mount+0x488/0x5f8 [ 217.921632][ T6064] invoke_syscall+0x98/0x28c [ 217.922607][ T6064] el0_svc_common+0x13c/0x258 [ 217.923499][ T6064] do_el0_svc+0x5c/0x140 [ 217.924301][ T6064] el0_svc+0x78/0x1d0 [ 217.925032][ T6064] el0t_64_sync_handler+0xcc/0xe4 [ 217.925861][ T6064] el0t_64_sync+0x1a0/0x1a4 [ 217.928630][ T6064] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.931021][ T6064] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.072094][ T6066] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.073528][ T6066] CPU: 1 PID: 6066 Comm: syz.1.663 Not tainted syzkaller #0 [ 218.074662][ T6066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 218.076416][ T6066] Call trace: [ 218.077004][ T6066] dump_backtrace+0x0/0x458 [ 218.077815][ T6066] show_stack+0x2c/0x3c [ 218.078519][ T6066] __dump_stack+0x30/0x40 [ 218.079289][ T6066] dump_stack_lvl+0xf4/0x15c [ 218.080069][ T6066] dump_stack+0x1c/0x5c [ 218.080712][ T6066] sysfs_create_dir_ns+0x244/0x264 [ 218.081569][ T6066] kobject_add_internal+0x594/0xc2c [ 218.082529][ T6066] kobject_init_and_add+0x128/0x194 [ 218.083477][ T6066] gfs2_sys_fs_add+0x208/0x428 [ 218.084342][ T6066] gfs2_fill_super+0xe20/0x1a9c [ 218.085175][ T6066] get_tree_bdev+0x35c/0x54c [ 218.085966][ T6066] gfs2_get_tree+0x58/0x1b8 [ 218.086744][ T6066] vfs_get_tree+0x90/0x278 [ 218.087479][ T6066] do_new_mount+0x228/0x804 [ 218.088225][ T6066] path_mount+0x57c/0xfe8 [ 218.089042][ T6066] __arm64_sys_mount+0x488/0x5f8 [ 218.089993][ T6066] invoke_syscall+0x98/0x28c [ 218.090780][ T6066] el0_svc_common+0x13c/0x258 [ 218.091635][ T6066] do_el0_svc+0x5c/0x140 [ 218.092341][ T6066] el0_svc+0x78/0x1d0 [ 218.092978][ T6066] el0t_64_sync_handler+0xcc/0xe4 [ 218.093748][ T6066] el0t_64_sync+0x1a0/0x1a4 [ 218.094663][ T6066] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.096827][ T6066] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.103042][ T27] INFO: task kworker/0:13:4547 blocked for more than 143 seconds. [ 218.104325][ T27] Not tainted syzkaller #0 [ 218.105177][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 218.106666][ T27] task:kworker/0:13 state:D stack: 0 pid: 4547 ppid: 2 flags:0x00000008 [ 218.108301][ T27] Workqueue: gfs_recovery gfs2_recover_func [ 218.109363][ T27] Call trace: [ 218.109894][ T27] __switch_to+0x2f4/0x540 [ 218.110655][ T27] __schedule+0xe20/0x1c6c [ 218.111356][ T27] schedule+0x11c/0x1c8 [ 218.112042][ T27] io_schedule+0x84/0x160 [ 218.113402][ T27] wait_on_page_bit_common+0x658/0xab4 [ 218.114317][ T27] wait_on_page_bit+0x58/0x68 [ 218.115151][ T27] gfs2_jhead_process_page+0x1e0/0x6b4 [ 218.116030][ T27] gfs2_find_jhead+0xc00/0xd40 [ 218.116823][ T27] gfs2_recover_func+0x578/0x164c [ 218.117645][ T27] process_one_work+0x7a4/0x1178 [ 218.118436][ T27] worker_thread+0x8fc/0x103c [ 218.119230][ T27] kthread+0x37c/0x460 [ 218.119902][ T27] ret_from_fork+0x10/0x20 [ 218.120662][ T27] INFO: task syz.0.17:4726 blocked for more than 143 seconds. [ 218.122111][ T27] Not tainted syzkaller #0 [ 218.123553][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 218.125087][ T27] task:syz.0.17 state:D stack: 0 pid: 4726 ppid: 4624 flags:0x00000009 [ 218.126792][ T27] Call trace: [ 218.127473][ T27] __switch_to+0x2f4/0x540 [ 218.128352][ T27] __schedule+0xe20/0x1c6c [ 218.129180][ T27] schedule+0x11c/0x1c8 [ 218.129851][ T27] bit_wait+0x1c/0xac [ 218.130510][ T27] out_of_line_wait_on_bit+0x16c/0x218 [ 218.131411][ T27] gfs2_recover_journal+0xf0/0x164 [ 218.132257][ T27] init_journal+0x1310/0x1dfc [ 218.133491][ T27] init_inodes+0xe0/0x2e0 [ 218.134173][ T27] gfs2_fill_super+0x129c/0x1a9c [ 218.135355][ T27] get_tree_bdev+0x35c/0x54c [ 218.136130][ T27] gfs2_get_tree+0x58/0x1b8 [ 218.136874][ T27] vfs_get_tree+0x90/0x278 [ 218.137588][ T27] do_new_mount+0x228/0x804 [ 218.138293][ T27] path_mount+0x57c/0xfe8 [ 218.138986][ T27] __arm64_sys_mount+0x488/0x5f8 [ 218.139787][ T27] invoke_syscall+0x98/0x28c [ 218.140561][ T27] el0_svc_common+0x13c/0x258 [ 218.141321][ T27] do_el0_svc+0x5c/0x140 [ 218.142008][ T27] el0_svc+0x78/0x1d0 [ 218.145142][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 218.146060][ T27] el0t_64_sync+0x1a0/0x1a4 [ 218.146903][ T27] [ 218.146903][ T27] Showing all locks held in the system: [ 218.148238][ T27] 1 lock held by khungtaskd/27: [ 218.149116][ T27] #0: ffff800014561460 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 218.150778][ T27] 2 locks held by getty/3804: [ 218.151587][ T27] #0: ffff0000d4190098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 218.153938][ T27] #1: ffff80001bebe2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf90 [ 218.155820][ T27] 2 locks held by kworker/0:13/4547: [ 218.156690][ T27] #0: ffff0000c711d138 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x67c/0x1178 [ 218.158588][ T27] #1: ffff80001fb87c40 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x6c0/0x1178 [ 218.160504][ T27] 1 lock held by syz.0.17/4726: [ 218.161374][ T27] #0: ffff0000d21580e0 (&type->s_umount_key#51/1){+.+.}-{3:3}, at: alloc_super+0x1a4/0x860 [ 218.165162][ T27] [ 218.165564][ T27] ============================================= [ 218.165564][ T27] [ 218.167104][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 218.168313][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 218.169628][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 218.171487][ T27] Call trace: [ 218.172094][ T27] dump_backtrace+0x0/0x458 [ 218.172941][ T27] show_stack+0x2c/0x3c [ 218.173662][ T27] __dump_stack+0x30/0x40 [ 218.174454][ T27] dump_stack_lvl+0xf4/0x15c [ 218.175300][ T27] dump_stack+0x1c/0x5c [ 218.176049][ T27] panic+0x2fc/0x860 [ 218.176748][ T27] hung_task_panic+0x0/0x2c [ 218.177581][ T27] kthread+0x37c/0x460 [ 218.178268][ T27] ret_from_fork+0x10/0x20 [ 218.179007][ T27] SMP: stopping secondary CPUs [ 218.179865][ T27] Kernel Offset: disabled [ 218.180596][ T27] CPU features: 0xa,000003c1,7d33ffd9 [ 218.181608][ T27] Memory Limit: none [ 218.508632][ T27] Rebooting in 86400 seconds..