yz:syz: error -17 adding sysfs files [ 215.206154][ T6365] chnl_net:caif_netlink_parms(): no params data found [ 215.223905][ T6365] bridge0: port 1(bridge_slave_0) entered blocking state [ 215.225084][ T6365] bridge0: port 1(bridge_slave_0) entered disabled state [ 215.226518][ T6365] device bridge_slave_0 entered promiscuous mode [ 215.229845][ T6365] bridge0: port 2(bridge_slave_1) entered blocking state [ 215.231045][ T6365] bridge0: port 2(bridge_slave_1) entered disabled state [ 215.232653][ T6365] device bridge_slave_1 entered promiscuous mode [ 215.240335][ T6365] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 215.242788][ T6365] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 215.250915][ T6365] team0: Port device team_slave_0 added [ 215.252924][ T6365] team0: Port device team_slave_1 added [ 215.259293][ T6365] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 215.260415][ T6365] 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. [ 215.264689][ T6365] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 215.267033][ T6365] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 215.268124][ T6365] 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. [ 215.272136][ T6365] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 215.320141][ T6365] device hsr_slave_0 entered promiscuous mode [ 215.348563][ T6365] device hsr_slave_1 entered promiscuous mode [ 215.408389][ T6365] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 215.409579][ T6365] Cannot create hsr debugfs directory [ 215.446257][ T6365] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 215.893075][ T6365] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 215.936256][ T6365] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 215.971922][ T6365] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 216.122993][ T6365] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 216.194664][ T6365] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 216.232680][ T6365] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 216.272133][ T6365] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 216.344167][ T6365] 8021q: adding VLAN 0 to HW filter on device bond0 [ 216.347783][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 216.351074][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 216.353533][ T6365] 8021q: adding VLAN 0 to HW filter on device team0 [ 216.355914][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 216.357404][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 216.358944][ T417] bridge0: port 1(bridge_slave_0) entered blocking state [ 216.360015][ T417] bridge0: port 1(bridge_slave_0) entered forwarding state [ 216.361406][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 216.364001][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 216.365535][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 216.367004][ T417] bridge0: port 2(bridge_slave_1) entered blocking state [ 216.368076][ T417] bridge0: port 2(bridge_slave_1) entered forwarding state [ 216.372467][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 216.375127][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 216.378173][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 216.380821][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 216.382413][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 216.387707][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 216.390334][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 216.393140][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 216.394761][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 216.397757][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 216.399500][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 216.401471][ T6365] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 216.444921][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 216.446197][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 216.451604][ T6365] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 216.457169][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 216.459015][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 216.464967][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 216.466480][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 216.468017][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 216.470211][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 216.474953][ T6365] device veth0_vlan entered promiscuous mode [ 216.478298][ T6365] device veth1_vlan entered promiscuous mode [ 216.486009][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 216.487576][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 216.489326][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 216.490769][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 216.493675][ T6365] device veth0_macvtap entered promiscuous mode [ 216.496085][ T6365] device veth1_macvtap entered promiscuous mode [ 216.502911][ T6365] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 216.504525][ T6365] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 216.506009][ T6365] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 216.507544][ T6365] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 216.509848][ T6365] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 216.511071][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 216.512566][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 216.513944][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 216.515461][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 216.517960][ T6365] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 216.520322][ T6365] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 216.521784][ T6365] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 216.523530][ T6365] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 216.525718][ T6365] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 216.526938][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 216.529485][ T417] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 216.532237][ T6365] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 216.533627][ T6365] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 216.534924][ T6365] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 216.536135][ T6365] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 216.560046][ T417] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 216.564764][ T417] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 216.566909][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 216.569051][ T4253] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 216.570433][ T4253] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 216.572085][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:03:36 executed programs: 604 [ 216.714190][ T6383] loop1: detected capacity change from 0 to 32768 [ 216.754973][ T6383] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.756169][ T6383] CPU: 0 PID: 6383 Comm: syz.1.618 Not tainted syzkaller #0 [ 216.757303][ T6383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 216.758884][ T6383] Call trace: [ 216.759368][ T6383] dump_backtrace+0x0/0x43c [ 216.760057][ T6383] show_stack+0x2c/0x3c [ 216.760693][ T6383] __dump_stack+0x30/0x40 [ 216.761327][ T6383] dump_stack_lvl+0xf8/0x160 [ 216.762033][ T6383] dump_stack+0x1c/0x5c [ 216.762686][ T6383] sysfs_create_dir_ns+0x22c/0x24c [ 216.763456][ T6383] kobject_add_internal+0x590/0xc54 [ 216.764268][ T6383] kobject_init_and_add+0x118/0x17c [ 216.765090][ T6383] gfs2_sys_fs_add+0x1dc/0x3d8 [ 216.765861][ T6383] gfs2_fill_super+0xdac/0x19e0 [ 216.766600][ T6383] get_tree_bdev+0x358/0x544 [ 216.767309][ T6383] gfs2_get_tree+0x54/0x1b4 [ 216.768010][ T6383] vfs_get_tree+0x90/0x274 [ 216.768657][ T6383] do_new_mount+0x228/0x810 [ 216.769318][ T6383] path_mount+0x5b4/0x1000 [ 216.769987][ T6383] __arm64_sys_mount+0x514/0x5e4 [ 216.770799][ T6383] invoke_syscall+0x98/0x2b8 [ 216.771510][ T6383] el0_svc_common+0x138/0x258 [ 216.772239][ T6383] do_el0_svc+0x58/0x14c [ 216.772922][ T6383] el0_svc+0x78/0x1e0 [ 216.773518][ T6383] el0t_64_sync_handler+0xcc/0xe4 [ 216.774285][ T6383] el0t_64_sync+0x1a0/0x1a4 [ 216.775381][ T6383] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.777371][ T6383] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.945125][ T6385] loop1: detected capacity change from 0 to 32768 [ 216.993646][ T6385] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.996029][ T6385] CPU: 1 PID: 6385 Comm: syz.1.619 Not tainted syzkaller #0 [ 216.997091][ T6385] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 216.998525][ T6385] Call trace: [ 216.999000][ T6385] dump_backtrace+0x0/0x43c [ 216.999702][ T6385] show_stack+0x2c/0x3c [ 217.000354][ T6385] __dump_stack+0x30/0x40 [ 217.001072][ T6385] dump_stack_lvl+0xf8/0x160 [ 217.001779][ T6385] dump_stack+0x1c/0x5c [ 217.002392][ T6385] sysfs_create_dir_ns+0x22c/0x24c [ 217.003160][ T6385] kobject_add_internal+0x590/0xc54 [ 217.003902][ T6385] kobject_init_and_add+0x118/0x17c [ 217.004690][ T6385] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.005461][ T6385] gfs2_fill_super+0xdac/0x19e0 [ 217.006183][ T6385] get_tree_bdev+0x358/0x544 [ 217.006920][ T6385] gfs2_get_tree+0x54/0x1b4 [ 217.007663][ T6385] vfs_get_tree+0x90/0x274 [ 217.008407][ T6385] do_new_mount+0x228/0x810 [ 217.009175][ T6385] path_mount+0x5b4/0x1000 [ 217.009904][ T6385] __arm64_sys_mount+0x514/0x5e4 [ 217.010728][ T6385] invoke_syscall+0x98/0x2b8 [ 217.011448][ T6385] el0_svc_common+0x138/0x258 [ 217.012188][ T6385] do_el0_svc+0x58/0x14c [ 217.012879][ T6385] el0_svc+0x78/0x1e0 [ 217.013492][ T6385] el0t_64_sync_handler+0xcc/0xe4 [ 217.014254][ T6385] el0t_64_sync+0x1a0/0x1a4 [ 217.017574][ T6385] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.019650][ T6385] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.151015][ T6387] loop1: detected capacity change from 0 to 32768 [ 217.192923][ T6387] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.194054][ T6387] CPU: 1 PID: 6387 Comm: syz.1.620 Not tainted syzkaller #0 [ 217.195073][ T6387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 217.196660][ T6387] Call trace: [ 217.197176][ T6387] dump_backtrace+0x0/0x43c [ 217.197889][ T6387] show_stack+0x2c/0x3c [ 217.198476][ T6387] __dump_stack+0x30/0x40 [ 217.199123][ T6387] dump_stack_lvl+0xf8/0x160 [ 217.199795][ T6387] dump_stack+0x1c/0x5c [ 217.200447][ T6387] sysfs_create_dir_ns+0x22c/0x24c [ 217.201165][ T6387] kobject_add_internal+0x590/0xc54 [ 217.202001][ T6387] kobject_init_and_add+0x118/0x17c [ 217.202839][ T6387] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.203697][ T6387] gfs2_fill_super+0xdac/0x19e0 [ 217.204423][ T6387] get_tree_bdev+0x358/0x544 [ 217.205212][ T6387] gfs2_get_tree+0x54/0x1b4 [ 217.205935][ T6387] vfs_get_tree+0x90/0x274 [ 217.206601][ T6387] do_new_mount+0x228/0x810 [ 217.207291][ T6387] path_mount+0x5b4/0x1000 [ 217.208003][ T6387] __arm64_sys_mount+0x514/0x5e4 [ 217.208708][ T4270] Bluetooth: hci2: command 0x0409 tx timeout [ 217.208836][ T6387] invoke_syscall+0x98/0x2b8 [ 217.210574][ T6387] el0_svc_common+0x138/0x258 [ 217.211333][ T6387] do_el0_svc+0x58/0x14c [ 217.212023][ T6387] el0_svc+0x78/0x1e0 [ 217.212721][ T6387] el0t_64_sync_handler+0xcc/0xe4 [ 217.213606][ T6387] el0t_64_sync+0x1a0/0x1a4 [ 217.216154][ T6387] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.218135][ T6387] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.301636][ T347] device hsr_slave_0 left promiscuous mode [ 217.330569][ T347] device hsr_slave_1 left promiscuous mode [ 217.349253][ T6389] loop1: detected capacity change from 0 to 32768 [ 217.408439][ T347] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 217.409662][ T347] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 217.411108][ T347] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 217.412241][ T347] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 217.413515][ T347] device bridge_slave_1 left promiscuous mode [ 217.414830][ T347] bridge0: port 2(bridge_slave_1) entered disabled state [ 217.433290][ T6389] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.434493][ T6389] CPU: 1 PID: 6389 Comm: syz.1.621 Not tainted syzkaller #0 [ 217.435593][ T6389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 217.437100][ T6389] Call trace: [ 217.437683][ T6389] dump_backtrace+0x0/0x43c [ 217.438365][ T6389] show_stack+0x2c/0x3c [ 217.439062][ T6389] __dump_stack+0x30/0x40 [ 217.439774][ T6389] dump_stack_lvl+0xf8/0x160 [ 217.440582][ T6389] dump_stack+0x1c/0x5c [ 217.441272][ T6389] sysfs_create_dir_ns+0x22c/0x24c [ 217.442058][ T6389] kobject_add_internal+0x590/0xc54 [ 217.442930][ T6389] kobject_init_and_add+0x118/0x17c [ 217.443858][ T6389] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.444683][ T6389] gfs2_fill_super+0xdac/0x19e0 [ 217.445525][ T6389] get_tree_bdev+0x358/0x544 [ 217.446318][ T6389] gfs2_get_tree+0x54/0x1b4 [ 217.447101][ T6389] vfs_get_tree+0x90/0x274 [ 217.447802][ T6389] do_new_mount+0x228/0x810 [ 217.448481][ T6389] path_mount+0x5b4/0x1000 [ 217.449116][ T6389] __arm64_sys_mount+0x514/0x5e4 [ 217.449852][ T6389] invoke_syscall+0x98/0x2b8 [ 217.450581][ T6389] el0_svc_common+0x138/0x258 [ 217.451331][ T6389] do_el0_svc+0x58/0x14c [ 217.452039][ T6389] el0_svc+0x78/0x1e0 [ 217.452699][ T6389] el0t_64_sync_handler+0xcc/0xe4 [ 217.453522][ T6389] el0t_64_sync+0x1a0/0x1a4 [ 217.456103][ T6389] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.458038][ T6389] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.460815][ T347] device bridge_slave_0 left promiscuous mode [ 217.461916][ T347] bridge0: port 1(bridge_slave_0) entered disabled state [ 217.594301][ T6391] loop1: detected capacity change from 0 to 32768 [ 217.619067][ T347] device veth1_macvtap left promiscuous mode [ 217.620011][ T347] device veth0_macvtap left promiscuous mode [ 217.620961][ T347] device veth1_vlan left promiscuous mode [ 217.621899][ T347] device veth0_vlan left promiscuous mode [ 217.639486][ T6391] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.640742][ T6391] CPU: 1 PID: 6391 Comm: syz.1.622 Not tainted syzkaller #0 [ 217.641947][ T6391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 217.643512][ T6391] Call trace: [ 217.644012][ T6391] dump_backtrace+0x0/0x43c [ 217.644680][ T6391] show_stack+0x2c/0x3c [ 217.645364][ T6391] __dump_stack+0x30/0x40 [ 217.645994][ T6391] dump_stack_lvl+0xf8/0x160 [ 217.646760][ T6391] dump_stack+0x1c/0x5c [ 217.647386][ T6391] sysfs_create_dir_ns+0x22c/0x24c [ 217.648111][ T6391] kobject_add_internal+0x590/0xc54 [ 217.648959][ T6391] kobject_init_and_add+0x118/0x17c [ 217.649867][ T6391] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.650619][ T6391] gfs2_fill_super+0xdac/0x19e0 [ 217.651443][ T6391] get_tree_bdev+0x358/0x544 [ 217.652255][ T6391] gfs2_get_tree+0x54/0x1b4 [ 217.652979][ T6391] vfs_get_tree+0x90/0x274 [ 217.653685][ T6391] do_new_mount+0x228/0x810 [ 217.654327][ T6391] path_mount+0x5b4/0x1000 [ 217.655007][ T6391] __arm64_sys_mount+0x514/0x5e4 [ 217.655722][ T6391] invoke_syscall+0x98/0x2b8 [ 217.656487][ T6391] el0_svc_common+0x138/0x258 [ 217.657221][ T6391] do_el0_svc+0x58/0x14c [ 217.657925][ T6391] el0_svc+0x78/0x1e0 [ 217.658568][ T6391] el0t_64_sync_handler+0xcc/0xe4 [ 217.659365][ T6391] el0t_64_sync+0x1a0/0x1a4 [ 217.668532][ T6391] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.681537][ T6391] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.760331][ T347] team0 (unregistering): Port device team_slave_1 removed [ 217.764670][ T347] team0 (unregistering): Port device team_slave_0 removed [ 217.770942][ T347] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 217.812550][ T347] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 217.869986][ T6393] loop1: detected capacity change from 0 to 32768 [ 217.922094][ T347] bond0 (unregistering): Released all slaves [ 217.951190][ T6393] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.952484][ T6393] CPU: 1 PID: 6393 Comm: syz.1.623 Not tainted syzkaller #0 [ 217.953660][ T6393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 217.955320][ T6393] Call trace: [ 217.955835][ T6393] dump_backtrace+0x0/0x43c [ 217.956577][ T6393] show_stack+0x2c/0x3c [ 217.957199][ T6393] __dump_stack+0x30/0x40 [ 217.957884][ T6393] dump_stack_lvl+0xf8/0x160 [ 217.958593][ T6393] dump_stack+0x1c/0x5c [ 217.959225][ T6393] sysfs_create_dir_ns+0x22c/0x24c [ 217.960060][ T6393] kobject_add_internal+0x590/0xc54 [ 217.960859][ T6393] kobject_init_and_add+0x118/0x17c [ 217.961666][ T6393] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.962446][ T6393] gfs2_fill_super+0xdac/0x19e0 [ 217.963223][ T6393] get_tree_bdev+0x358/0x544 [ 217.963932][ T6393] gfs2_get_tree+0x54/0x1b4 [ 217.964650][ T6393] vfs_get_tree+0x90/0x274 [ 217.965385][ T6393] do_new_mount+0x228/0x810 [ 217.966132][ T6393] path_mount+0x5b4/0x1000 [ 217.966834][ T6393] __arm64_sys_mount+0x514/0x5e4 [ 217.967654][ T6393] invoke_syscall+0x98/0x2b8 [ 217.968390][ T6393] el0_svc_common+0x138/0x258 [ 217.969196][ T6393] do_el0_svc+0x58/0x14c [ 217.969882][ T6393] el0_svc+0x78/0x1e0 [ 217.970479][ T6393] el0t_64_sync_handler+0xcc/0xe4 [ 217.971248][ T6393] el0t_64_sync+0x1a0/0x1a4 [ 217.972285][ T6393] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.974436][ T6393] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.111578][ T6395] loop1: detected capacity change from 0 to 32768 [ 218.149502][ T6395] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.150794][ T6395] CPU: 1 PID: 6395 Comm: syz.1.624 Not tainted syzkaller #0 [ 218.151964][ T6395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 218.153642][ T6395] Call trace: [ 218.154149][ T6395] dump_backtrace+0x0/0x43c [ 218.154889][ T6395] show_stack+0x2c/0x3c [ 218.155522][ T6395] __dump_stack+0x30/0x40 [ 218.156202][ T6395] dump_stack_lvl+0xf8/0x160 [ 218.156937][ T6395] dump_stack+0x1c/0x5c [ 218.157590][ T6395] sysfs_create_dir_ns+0x22c/0x24c [ 218.158408][ T6395] kobject_add_internal+0x590/0xc54 [ 218.159278][ T6395] kobject_init_and_add+0x118/0x17c [ 218.160099][ T6395] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.160891][ T6395] gfs2_fill_super+0xdac/0x19e0 [ 218.161697][ T6395] get_tree_bdev+0x358/0x544 [ 218.162505][ T6395] gfs2_get_tree+0x54/0x1b4 [ 218.163232][ T6395] vfs_get_tree+0x90/0x274 [ 218.163885][ T6395] do_new_mount+0x228/0x810 [ 218.164588][ T6395] path_mount+0x5b4/0x1000 [ 218.165367][ T6395] __arm64_sys_mount+0x514/0x5e4 [ 218.166176][ T6395] invoke_syscall+0x98/0x2b8 [ 218.166923][ T6395] el0_svc_common+0x138/0x258 [ 218.167746][ T6395] do_el0_svc+0x58/0x14c [ 218.168477][ T6395] el0_svc+0x78/0x1e0 [ 218.169160][ T6395] el0t_64_sync_handler+0xcc/0xe4 [ 218.170015][ T6395] el0t_64_sync+0x1a0/0x1a4 [ 218.171827][ T6395] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.173904][ T6395] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.300935][ T6397] loop1: detected capacity change from 0 to 32768 [ 218.339758][ T6397] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.341075][ T6397] CPU: 1 PID: 6397 Comm: syz.1.625 Not tainted syzkaller #0 [ 218.342160][ T6397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 218.343685][ T6397] Call trace: [ 218.344167][ T6397] dump_backtrace+0x0/0x43c [ 218.344907][ T6397] show_stack+0x2c/0x3c [ 218.345588][ T6397] __dump_stack+0x30/0x40 [ 218.346309][ T6397] dump_stack_lvl+0xf8/0x160 [ 218.347086][ T6397] dump_stack+0x1c/0x5c [ 218.347711][ T6397] sysfs_create_dir_ns+0x22c/0x24c [ 218.348527][ T6397] kobject_add_internal+0x590/0xc54 [ 218.349328][ T6397] kobject_init_and_add+0x118/0x17c [ 218.350215][ T6397] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.350927][ T6397] gfs2_fill_super+0xdac/0x19e0 [ 218.351769][ T6397] get_tree_bdev+0x358/0x544 [ 218.352554][ T6397] gfs2_get_tree+0x54/0x1b4 [ 218.353308][ T6397] vfs_get_tree+0x90/0x274 [ 218.354048][ T6397] do_new_mount+0x228/0x810 [ 218.354747][ T6397] path_mount+0x5b4/0x1000 [ 218.355391][ T6397] __arm64_sys_mount+0x514/0x5e4 [ 218.356155][ T6397] invoke_syscall+0x98/0x2b8 [ 218.356853][ T6397] el0_svc_common+0x138/0x258 [ 218.357660][ T6397] do_el0_svc+0x58/0x14c [ 218.358416][ T6397] el0_svc+0x78/0x1e0 [ 218.359034][ T6397] el0t_64_sync_handler+0xcc/0xe4 [ 218.359879][ T6397] el0t_64_sync+0x1a0/0x1a4 [ 218.361366][ T6397] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.363429][ T6397] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.525812][ T6399] loop1: detected capacity change from 0 to 32768 [ 218.569601][ T6399] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.570968][ T6399] CPU: 1 PID: 6399 Comm: syz.1.626 Not tainted syzkaller #0 [ 218.572070][ T6399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 218.573589][ T6399] Call trace: [ 218.574071][ T6399] dump_backtrace+0x0/0x43c [ 218.574689][ T6399] show_stack+0x2c/0x3c [ 218.575283][ T6399] __dump_stack+0x30/0x40 [ 218.576010][ T6399] dump_stack_lvl+0xf8/0x160 [ 218.576720][ T6399] dump_stack+0x1c/0x5c [ 218.577360][ T6399] sysfs_create_dir_ns+0x22c/0x24c [ 218.578144][ T6399] kobject_add_internal+0x590/0xc54 [ 218.578939][ T6399] kobject_init_and_add+0x118/0x17c [ 218.579718][ T6399] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.580491][ T6399] gfs2_fill_super+0xdac/0x19e0 [ 218.581202][ T6399] get_tree_bdev+0x358/0x544 [ 218.581833][ T6399] gfs2_get_tree+0x54/0x1b4 [ 218.582529][ T6399] vfs_get_tree+0x90/0x274 [ 218.583196][ T6399] do_new_mount+0x228/0x810 [ 218.583899][ T6399] path_mount+0x5b4/0x1000 [ 218.584599][ T6399] __arm64_sys_mount+0x514/0x5e4 [ 218.585446][ T6399] invoke_syscall+0x98/0x2b8 [ 218.586222][ T6399] el0_svc_common+0x138/0x258 [ 218.587016][ T6399] do_el0_svc+0x58/0x14c [ 218.587734][ T6399] el0_svc+0x78/0x1e0 [ 218.588379][ T6399] el0t_64_sync_handler+0xcc/0xe4 [ 218.589149][ T6399] el0t_64_sync+0x1a0/0x1a4 [ 218.590707][ T6399] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.592778][ T6399] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.834241][ T6401] loop1: detected capacity change from 0 to 32768 [ 218.873766][ T6401] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.875008][ T6401] CPU: 0 PID: 6401 Comm: syz.1.627 Not tainted syzkaller #0 [ 218.876193][ T6401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 218.877890][ T6401] Call trace: [ 218.878431][ T6401] dump_backtrace+0x0/0x43c [ 218.879138][ T6401] show_stack+0x2c/0x3c [ 218.879817][ T6401] __dump_stack+0x30/0x40 [ 218.880510][ T6401] dump_stack_lvl+0xf8/0x160 [ 218.881213][ T6401] dump_stack+0x1c/0x5c [ 218.881812][ T6401] sysfs_create_dir_ns+0x22c/0x24c [ 218.882624][ T6401] kobject_add_internal+0x590/0xc54 [ 218.883497][ T6401] kobject_init_and_add+0x118/0x17c [ 218.884323][ T6401] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.885044][ T6401] gfs2_fill_super+0xdac/0x19e0 [ 218.885867][ T6401] get_tree_bdev+0x358/0x544 [ 218.886630][ T6401] gfs2_get_tree+0x54/0x1b4 [ 218.887397][ T6401] vfs_get_tree+0x90/0x274 [ 218.888113][ T6401] do_new_mount+0x228/0x810 [ 218.888868][ T6401] path_mount+0x5b4/0x1000 [ 218.889563][ T6401] __arm64_sys_mount+0x514/0x5e4 [ 218.890425][ T6401] invoke_syscall+0x98/0x2b8 [ 218.891156][ T6401] el0_svc_common+0x138/0x258 [ 218.891889][ T6401] do_el0_svc+0x58/0x14c [ 218.892588][ T6401] el0_svc+0x78/0x1e0 [ 218.893225][ T6401] el0t_64_sync_handler+0xcc/0xe4 [ 218.894038][ T6401] el0t_64_sync+0x1a0/0x1a4 [ 218.899392][ T6401] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.901519][ T6401] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.036326][ T6403] loop1: detected capacity change from 0 to 32768 [ 219.051765][ T6403] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.053265][ T6403] CPU: 1 PID: 6403 Comm: syz.1.628 Not tainted syzkaller #0 [ 219.054387][ T6403] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 219.055947][ T6403] Call trace: [ 219.056437][ T6403] dump_backtrace+0x0/0x43c [ 219.057121][ T6403] show_stack+0x2c/0x3c [ 219.057814][ T6403] __dump_stack+0x30/0x40 [ 219.058571][ T6403] dump_stack_lvl+0xf8/0x160 [ 219.059289][ T6403] dump_stack+0x1c/0x5c [ 219.059919][ T6403] sysfs_create_dir_ns+0x22c/0x24c [ 219.060693][ T6403] kobject_add_internal+0x590/0xc54 [ 219.061507][ T6403] kobject_init_and_add+0x118/0x17c [ 219.062355][ T6403] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.063074][ T6403] gfs2_fill_super+0xdac/0x19e0 [ 219.063897][ T6403] get_tree_bdev+0x358/0x544 [ 219.064686][ T6403] gfs2_get_tree+0x54/0x1b4 [ 219.065441][ T6403] vfs_get_tree+0x90/0x274 [ 219.066189][ T6403] do_new_mount+0x228/0x810 [ 219.066906][ T6403] path_mount+0x5b4/0x1000 [ 219.067652][ T6403] __arm64_sys_mount+0x514/0x5e4 [ 219.068413][ T6403] invoke_syscall+0x98/0x2b8 [ 219.069116][ T6403] el0_svc_common+0x138/0x258 [ 219.069932][ T6403] do_el0_svc+0x58/0x14c [ 219.070690][ T6403] el0_svc+0x78/0x1e0 [ 219.071312][ T6403] el0t_64_sync_handler+0xcc/0xe4 [ 219.072187][ T6403] el0t_64_sync+0x1a0/0x1a4 [ 219.075127][ T6403] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.077128][ T6403] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.210532][ T6405] loop1: detected capacity change from 0 to 32768 [ 219.218616][ T6405] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.219857][ T6405] CPU: 1 PID: 6405 Comm: syz.1.629 Not tainted syzkaller #0 [ 219.220958][ T6405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 219.222522][ T6405] Call trace: [ 219.223091][ T6405] dump_backtrace+0x0/0x43c [ 219.223812][ T6405] show_stack+0x2c/0x3c [ 219.224484][ T6405] __dump_stack+0x30/0x40 [ 219.225162][ T6405] dump_stack_lvl+0xf8/0x160 [ 219.225772][ T6405] dump_stack+0x1c/0x5c [ 219.226398][ T6405] sysfs_create_dir_ns+0x22c/0x24c [ 219.227176][ T6405] kobject_add_internal+0x590/0xc54 [ 219.227988][ T6405] kobject_init_and_add+0x118/0x17c [ 219.228813][ T6405] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.229601][ T6405] gfs2_fill_super+0xdac/0x19e0 [ 219.230326][ T6405] get_tree_bdev+0x358/0x544 [ 219.231015][ T6405] gfs2_get_tree+0x54/0x1b4 [ 219.231703][ T6405] vfs_get_tree+0x90/0x274 [ 219.232368][ T6405] do_new_mount+0x228/0x810 [ 219.233061][ T6405] path_mount+0x5b4/0x1000 [ 219.233761][ T6405] __arm64_sys_mount+0x514/0x5e4 [ 219.234515][ T6405] invoke_syscall+0x98/0x2b8 [ 219.235275][ T6405] el0_svc_common+0x138/0x258 [ 219.236058][ T6405] do_el0_svc+0x58/0x14c [ 219.236762][ T6405] el0_svc+0x78/0x1e0 [ 219.237424][ T6405] el0t_64_sync_handler+0xcc/0xe4 [ 219.238292][ T6405] el0t_64_sync+0x1a0/0x1a4 [ 219.241117][ T6405] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.243334][ T6405] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.289520][ T1968] Bluetooth: hci2: command 0x041b tx timeout [ 219.379047][ T6407] loop1: detected capacity change from 0 to 32768 [ 219.388624][ T6407] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.389725][ T6407] CPU: 1 PID: 6407 Comm: syz.1.630 Not tainted syzkaller #0 [ 219.390997][ T6407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 219.392517][ T6407] Call trace: [ 219.393018][ T6407] dump_backtrace+0x0/0x43c [ 219.393701][ T6407] show_stack+0x2c/0x3c [ 219.394345][ T6407] __dump_stack+0x30/0x40 [ 219.395063][ T6407] dump_stack_lvl+0xf8/0x160 [ 219.395831][ T6407] dump_stack+0x1c/0x5c [ 219.396531][ T6407] sysfs_create_dir_ns+0x22c/0x24c [ 219.397387][ T6407] kobject_add_internal+0x590/0xc54 [ 219.398210][ T6407] kobject_init_and_add+0x118/0x17c [ 219.398972][ T6407] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.399679][ T6407] gfs2_fill_super+0xdac/0x19e0 [ 219.400431][ T6407] get_tree_bdev+0x358/0x544 [ 219.401176][ T6407] gfs2_get_tree+0x54/0x1b4 [ 219.401882][ T6407] vfs_get_tree+0x90/0x274 [ 219.402656][ T6407] do_new_mount+0x228/0x810 [ 219.403384][ T6407] path_mount+0x5b4/0x1000 [ 219.404081][ T6407] __arm64_sys_mount+0x514/0x5e4 [ 219.404855][ T6407] invoke_syscall+0x98/0x2b8 [ 219.405610][ T6407] el0_svc_common+0x138/0x258 [ 219.406331][ T6407] do_el0_svc+0x58/0x14c [ 219.406984][ T6407] el0_svc+0x78/0x1e0 [ 219.407576][ T6407] el0t_64_sync_handler+0xcc/0xe4 [ 219.408291][ T6407] el0t_64_sync+0x1a0/0x1a4 [ 219.412118][ T6407] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.414163][ T6407] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.546979][ T6409] loop1: detected capacity change from 0 to 32768 [ 219.554893][ T6409] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.556166][ T6409] CPU: 1 PID: 6409 Comm: syz.1.631 Not tainted syzkaller #0 [ 219.557341][ T6409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 219.558946][ T6409] Call trace: [ 219.559494][ T6409] dump_backtrace+0x0/0x43c [ 219.560284][ T6409] show_stack+0x2c/0x3c [ 219.560910][ T6409] __dump_stack+0x30/0x40 [ 219.561659][ T6409] dump_stack_lvl+0xf8/0x160 [ 219.562474][ T6409] dump_stack+0x1c/0x5c [ 219.563145][ T6409] sysfs_create_dir_ns+0x22c/0x24c [ 219.563979][ T6409] kobject_add_internal+0x590/0xc54 [ 219.564843][ T6409] kobject_init_and_add+0x118/0x17c [ 219.565691][ T6409] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.566494][ T6409] gfs2_fill_super+0xdac/0x19e0 [ 219.567275][ T6409] get_tree_bdev+0x358/0x544 [ 219.568235][ T6409] gfs2_get_tree+0x54/0x1b4 [ 219.568953][ T6409] vfs_get_tree+0x90/0x274 [ 219.569592][ T6409] do_new_mount+0x228/0x810 [ 219.570270][ T6409] path_mount+0x5b4/0x1000 [ 219.570968][ T6409] __arm64_sys_mount+0x514/0x5e4 [ 219.571722][ T6409] invoke_syscall+0x98/0x2b8 [ 219.572514][ T6409] el0_svc_common+0x138/0x258 [ 219.573290][ T6409] do_el0_svc+0x58/0x14c [ 219.574014][ T6409] el0_svc+0x78/0x1e0 [ 219.574704][ T6409] el0t_64_sync_handler+0xcc/0xe4 [ 219.575538][ T6409] el0t_64_sync+0x1a0/0x1a4 [ 219.578192][ T6409] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.580385][ T6409] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.718396][ T6411] loop1: detected capacity change from 0 to 32768 [ 219.763694][ T6411] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.764964][ T6411] CPU: 0 PID: 6411 Comm: syz.1.632 Not tainted syzkaller #0 [ 219.766053][ T6411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 219.767476][ T6411] Call trace: [ 219.767907][ T6411] dump_backtrace+0x0/0x43c [ 219.768533][ T6411] show_stack+0x2c/0x3c [ 219.769161][ T6411] __dump_stack+0x30/0x40 [ 219.769896][ T6411] dump_stack_lvl+0xf8/0x160 [ 219.770643][ T6411] dump_stack+0x1c/0x5c [ 219.771250][ T6411] sysfs_create_dir_ns+0x22c/0x24c [ 219.772020][ T6411] kobject_add_internal+0x590/0xc54 [ 219.772867][ T6411] kobject_init_and_add+0x118/0x17c [ 219.773693][ T6411] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.774509][ T6411] gfs2_fill_super+0xdac/0x19e0 [ 219.775248][ T6411] get_tree_bdev+0x358/0x544 [ 219.775973][ T6411] gfs2_get_tree+0x54/0x1b4 [ 219.776673][ T6411] vfs_get_tree+0x90/0x274 [ 219.777343][ T6411] do_new_mount+0x228/0x810 [ 219.778102][ T6411] path_mount+0x5b4/0x1000 [ 219.778824][ T6411] __arm64_sys_mount+0x514/0x5e4 [ 219.779625][ T6411] invoke_syscall+0x98/0x2b8 [ 219.780366][ T6411] el0_svc_common+0x138/0x258 [ 219.781109][ T6411] do_el0_svc+0x58/0x14c [ 219.781802][ T6411] el0_svc+0x78/0x1e0 [ 219.782462][ T6411] el0t_64_sync_handler+0xcc/0xe4 [ 219.783263][ T6411] el0t_64_sync+0x1a0/0x1a4 [ 219.784225][ T6411] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.786191][ T6411] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.923194][ T6413] loop1: detected capacity change from 0 to 32768 [ 219.975370][ T6413] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.976566][ T6413] CPU: 0 PID: 6413 Comm: syz.1.633 Not tainted syzkaller #0 [ 219.977642][ T6413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 219.979175][ T6413] Call trace: [ 219.979668][ T6413] dump_backtrace+0x0/0x43c [ 219.980350][ T6413] show_stack+0x2c/0x3c [ 219.980988][ T6413] __dump_stack+0x30/0x40 [ 219.981695][ T6413] dump_stack_lvl+0xf8/0x160 [ 219.982450][ T6413] dump_stack+0x1c/0x5c [ 219.983052][ T6413] sysfs_create_dir_ns+0x22c/0x24c [ 219.983883][ T6413] kobject_add_internal+0x590/0xc54 [ 219.984697][ T6413] kobject_init_and_add+0x118/0x17c [ 219.985543][ T6413] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.986269][ T6413] gfs2_fill_super+0xdac/0x19e0 [ 219.987077][ T6413] get_tree_bdev+0x358/0x544 [ 219.987812][ T6413] gfs2_get_tree+0x54/0x1b4 [ 219.988463][ T6413] vfs_get_tree+0x90/0x274 [ 219.989177][ T6413] do_new_mount+0x228/0x810 [ 219.989845][ T6413] path_mount+0x5b4/0x1000 [ 219.990534][ T6413] __arm64_sys_mount+0x514/0x5e4 [ 219.991347][ T6413] invoke_syscall+0x98/0x2b8 [ 219.992058][ T6413] el0_svc_common+0x138/0x258 [ 219.992764][ T6413] do_el0_svc+0x58/0x14c [ 219.993400][ T6413] el0_svc+0x78/0x1e0 [ 219.994036][ T6413] el0t_64_sync_handler+0xcc/0xe4 [ 219.994754][ T6413] el0t_64_sync+0x1a0/0x1a4 [ 219.997001][ T6413] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.999097][ T6413] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.123172][ T6415] loop1: detected capacity change from 0 to 32768 [ 220.180097][ T6415] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.181324][ T6415] CPU: 1 PID: 6415 Comm: syz.1.634 Not tainted syzkaller #0 [ 220.182562][ T6415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.184061][ T6415] Call trace: [ 220.184566][ T6415] dump_backtrace+0x0/0x43c [ 220.185271][ T6415] show_stack+0x2c/0x3c [ 220.185955][ T6415] __dump_stack+0x30/0x40 [ 220.186683][ T6415] dump_stack_lvl+0xf8/0x160 [ 220.187417][ T6415] dump_stack+0x1c/0x5c [ 220.188136][ T6415] sysfs_create_dir_ns+0x22c/0x24c [ 220.188978][ T6415] kobject_add_internal+0x590/0xc54 [ 220.189835][ T6415] kobject_init_and_add+0x118/0x17c [ 220.190645][ T6415] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.191450][ T6415] gfs2_fill_super+0xdac/0x19e0 [ 220.192291][ T6415] get_tree_bdev+0x358/0x544 [ 220.193013][ T6415] gfs2_get_tree+0x54/0x1b4 [ 220.193769][ T6415] vfs_get_tree+0x90/0x274 [ 220.194469][ T6415] do_new_mount+0x228/0x810 [ 220.195163][ T6415] path_mount+0x5b4/0x1000 [ 220.195866][ T6415] __arm64_sys_mount+0x514/0x5e4 [ 220.196651][ T6415] invoke_syscall+0x98/0x2b8 [ 220.197391][ T6415] el0_svc_common+0x138/0x258 [ 220.198183][ T6415] do_el0_svc+0x58/0x14c [ 220.198908][ T6415] el0_svc+0x78/0x1e0 [ 220.199518][ T6415] el0t_64_sync_handler+0xcc/0xe4 [ 220.200318][ T6415] el0t_64_sync+0x1a0/0x1a4 [ 220.203138][ T6415] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.205210][ T6415] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.336793][ T6417] loop1: detected capacity change from 0 to 32768 [ 220.343857][ T6417] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.345126][ T6417] CPU: 0 PID: 6417 Comm: syz.1.635 Not tainted syzkaller #0 [ 220.346282][ T6417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.347819][ T6417] Call trace: [ 220.348284][ T6417] dump_backtrace+0x0/0x43c [ 220.348969][ T6417] show_stack+0x2c/0x3c [ 220.349585][ T6417] __dump_stack+0x30/0x40 [ 220.350214][ T6417] dump_stack_lvl+0xf8/0x160 [ 220.350933][ T6417] dump_stack+0x1c/0x5c [ 220.351612][ T6417] sysfs_create_dir_ns+0x22c/0x24c [ 220.352491][ T6417] kobject_add_internal+0x590/0xc54 [ 220.353314][ T6417] kobject_init_and_add+0x118/0x17c [ 220.354078][ T6417] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.354729][ T6417] gfs2_fill_super+0xdac/0x19e0 [ 220.355482][ T6417] get_tree_bdev+0x358/0x544 [ 220.356129][ T6417] gfs2_get_tree+0x54/0x1b4 [ 220.356881][ T6417] vfs_get_tree+0x90/0x274 [ 220.357566][ T6417] do_new_mount+0x228/0x810 [ 220.358298][ T6417] path_mount+0x5b4/0x1000 [ 220.358993][ T6417] __arm64_sys_mount+0x514/0x5e4 [ 220.359700][ T6417] invoke_syscall+0x98/0x2b8 [ 220.360335][ T6417] el0_svc_common+0x138/0x258 [ 220.360989][ T6417] do_el0_svc+0x58/0x14c [ 220.361663][ T6417] el0_svc+0x78/0x1e0 [ 220.362273][ T6417] el0t_64_sync_handler+0xcc/0xe4 [ 220.363074][ T6417] el0t_64_sync+0x1a0/0x1a4 [ 220.363856][ T6417] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.365805][ T6417] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.494117][ T6419] loop1: detected capacity change from 0 to 32768 [ 220.519651][ T6419] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.520900][ T6419] CPU: 1 PID: 6419 Comm: syz.1.636 Not tainted syzkaller #0 [ 220.522067][ T6419] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.523642][ T6419] Call trace: [ 220.524149][ T6419] dump_backtrace+0x0/0x43c [ 220.524874][ T6419] show_stack+0x2c/0x3c [ 220.525536][ T6419] __dump_stack+0x30/0x40 [ 220.526230][ T6419] dump_stack_lvl+0xf8/0x160 [ 220.526919][ T6419] dump_stack+0x1c/0x5c [ 220.527484][ T6419] sysfs_create_dir_ns+0x22c/0x24c [ 220.528306][ T6419] kobject_add_internal+0x590/0xc54 [ 220.529145][ T6419] kobject_init_and_add+0x118/0x17c [ 220.529976][ T6419] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.530726][ T6419] gfs2_fill_super+0xdac/0x19e0 [ 220.531526][ T6419] get_tree_bdev+0x358/0x544 [ 220.532275][ T6419] gfs2_get_tree+0x54/0x1b4 [ 220.532939][ T6419] vfs_get_tree+0x90/0x274 [ 220.533598][ T6419] do_new_mount+0x228/0x810 [ 220.534313][ T6419] path_mount+0x5b4/0x1000 [ 220.535057][ T6419] __arm64_sys_mount+0x514/0x5e4 [ 220.535891][ T6419] invoke_syscall+0x98/0x2b8 [ 220.536615][ T6419] el0_svc_common+0x138/0x258 [ 220.537335][ T6419] do_el0_svc+0x58/0x14c [ 220.538057][ T6419] el0_svc+0x78/0x1e0 [ 220.538664][ T6419] el0t_64_sync_handler+0xcc/0xe4 [ 220.539447][ T6419] el0t_64_sync+0x1a0/0x1a4 [ 220.542128][ T6419] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.544159][ T6419] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.674656][ T6421] loop1: detected capacity change from 0 to 32768 [ 220.679486][ T6421] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.680800][ T6421] CPU: 0 PID: 6421 Comm: syz.1.637 Not tainted syzkaller #0 [ 220.681955][ T6421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.683513][ T6421] Call trace: [ 220.684008][ T6421] dump_backtrace+0x0/0x43c [ 220.684700][ T6421] show_stack+0x2c/0x3c [ 220.685339][ T6421] __dump_stack+0x30/0x40 [ 220.686015][ T6421] dump_stack_lvl+0xf8/0x160 [ 220.686724][ T6421] dump_stack+0x1c/0x5c [ 220.687334][ T6421] sysfs_create_dir_ns+0x22c/0x24c [ 220.688057][ T6421] kobject_add_internal+0x590/0xc54 [ 220.688898][ T6421] kobject_init_and_add+0x118/0x17c [ 220.689659][ T6421] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.690370][ T6421] gfs2_fill_super+0xdac/0x19e0 [ 220.691199][ T6421] get_tree_bdev+0x358/0x544 [ 220.691918][ T6421] gfs2_get_tree+0x54/0x1b4 [ 220.692501][ T6421] vfs_get_tree+0x90/0x274 [ 220.693178][ T6421] do_new_mount+0x228/0x810 [ 220.693949][ T6421] path_mount+0x5b4/0x1000 [ 220.694652][ T6421] __arm64_sys_mount+0x514/0x5e4 [ 220.695476][ T6421] invoke_syscall+0x98/0x2b8 [ 220.696214][ T6421] el0_svc_common+0x138/0x258 [ 220.696966][ T6421] do_el0_svc+0x58/0x14c [ 220.697630][ T6421] el0_svc+0x78/0x1e0 [ 220.698253][ T6421] el0t_64_sync_handler+0xcc/0xe4 [ 220.699066][ T6421] el0t_64_sync+0x1a0/0x1a4 [ 220.700013][ T6421] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.702063][ T6421] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.926195][ T6423] loop1: detected capacity change from 0 to 32768 [ 220.959761][ T6423] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.961049][ T6423] CPU: 1 PID: 6423 Comm: syz.1.638 Not tainted syzkaller #0 [ 220.962237][ T6423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.963887][ T6423] Call trace: [ 220.964402][ T6423] dump_backtrace+0x0/0x43c [ 220.965109][ T6423] show_stack+0x2c/0x3c [ 220.965766][ T6423] __dump_stack+0x30/0x40 [ 220.966462][ T6423] dump_stack_lvl+0xf8/0x160 [ 220.967240][ T6423] dump_stack+0x1c/0x5c [ 220.967966][ T6423] sysfs_create_dir_ns+0x22c/0x24c [ 220.968793][ T6423] kobject_add_internal+0x590/0xc54 [ 220.969613][ T6423] kobject_init_and_add+0x118/0x17c [ 220.970447][ T6423] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.971258][ T6423] gfs2_fill_super+0xdac/0x19e0 [ 220.972098][ T6423] get_tree_bdev+0x358/0x544 [ 220.972912][ T6423] gfs2_get_tree+0x54/0x1b4 [ 220.973659][ T6423] vfs_get_tree+0x90/0x274 [ 220.974458][ T6423] do_new_mount+0x228/0x810 [ 220.975184][ T6423] path_mount+0x5b4/0x1000 [ 220.975915][ T6423] __arm64_sys_mount+0x514/0x5e4 [ 220.976715][ T6423] invoke_syscall+0x98/0x2b8 [ 220.977409][ T6423] el0_svc_common+0x138/0x258 [ 220.978099][ T6423] do_el0_svc+0x58/0x14c [ 220.978727][ T6423] el0_svc+0x78/0x1e0 [ 220.979329][ T6423] el0t_64_sync_handler+0xcc/0xe4 [ 220.980103][ T6423] el0t_64_sync+0x1a0/0x1a4 [ 220.981611][ T6423] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.983686][ T6423] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.114273][ T6425] loop1: detected capacity change from 0 to 32768 [ 221.193374][ T6425] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.194595][ T6425] CPU: 1 PID: 6425 Comm: syz.1.639 Not tainted syzkaller #0 [ 221.195793][ T6425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 221.197397][ T6425] Call trace: [ 221.197929][ T6425] dump_backtrace+0x0/0x43c [ 221.198755][ T6425] show_stack+0x2c/0x3c [ 221.199500][ T6425] __dump_stack+0x30/0x40 [ 221.200252][ T6425] dump_stack_lvl+0xf8/0x160 [ 221.201101][ T6425] dump_stack+0x1c/0x5c [ 221.201791][ T6425] sysfs_create_dir_ns+0x22c/0x24c [ 221.202618][ T6425] kobject_add_internal+0x590/0xc54 [ 221.203476][ T6425] kobject_init_and_add+0x118/0x17c [ 221.204315][ T6425] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.205048][ T6425] gfs2_fill_super+0xdac/0x19e0 [ 221.205757][ T6425] get_tree_bdev+0x358/0x544 [ 221.206469][ T6425] gfs2_get_tree+0x54/0x1b4 [ 221.207150][ T6425] vfs_get_tree+0x90/0x274 [ 221.207785][ T6425] do_new_mount+0x228/0x810 [ 221.208426][ T6425] path_mount+0x5b4/0x1000 [ 221.209130][ T6425] __arm64_sys_mount+0x514/0x5e4 [ 221.209908][ T6425] invoke_syscall+0x98/0x2b8 [ 221.210667][ T6425] el0_svc_common+0x138/0x258 [ 221.211415][ T6425] do_el0_svc+0x58/0x14c [ 221.212109][ T6425] el0_svc+0x78/0x1e0 [ 221.212824][ T6425] el0t_64_sync_handler+0xcc/0xe4 [ 221.213690][ T6425] el0t_64_sync+0x1a0/0x1a4 [ 221.215388][ T6425] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.217316][ T6425] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.368366][ T1968] Bluetooth: hci2: command 0x040f tx timeout [ 221.380226][ T6427] loop1: detected capacity change from 0 to 32768 [ 221.456174][ T6427] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.457463][ T6427] CPU: 0 PID: 6427 Comm: syz.1.640 Not tainted syzkaller #0 [ 221.458673][ T6427] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 221.460210][ T6427] Call trace: [ 221.460672][ T6427] dump_backtrace+0x0/0x43c [ 221.461389][ T6427] show_stack+0x2c/0x3c [ 221.462012][ T6427] __dump_stack+0x30/0x40 [ 221.462717][ T6427] dump_stack_lvl+0xf8/0x160 [ 221.463467][ T6427] dump_stack+0x1c/0x5c [ 221.464111][ T6427] sysfs_create_dir_ns+0x22c/0x24c [ 221.464890][ T6427] kobject_add_internal+0x590/0xc54 [ 221.465709][ T6427] kobject_init_and_add+0x118/0x17c [ 221.466551][ T6427] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.467318][ T6427] gfs2_fill_super+0xdac/0x19e0 [ 221.468083][ T6427] get_tree_bdev+0x358/0x544 [ 221.468815][ T6427] gfs2_get_tree+0x54/0x1b4 [ 221.469515][ T6427] vfs_get_tree+0x90/0x274 [ 221.470190][ T6427] do_new_mount+0x228/0x810 [ 221.470924][ T6427] path_mount+0x5b4/0x1000 [ 221.471602][ T6427] __arm64_sys_mount+0x514/0x5e4 [ 221.472386][ T6427] invoke_syscall+0x98/0x2b8 [ 221.473125][ T6427] el0_svc_common+0x138/0x258 [ 221.473842][ T6427] do_el0_svc+0x58/0x14c [ 221.474537][ T6427] el0_svc+0x78/0x1e0 [ 221.475177][ T6427] el0t_64_sync_handler+0xcc/0xe4 [ 221.475941][ T6427] el0t_64_sync+0x1a0/0x1a4 [ 221.478054][ T6427] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.480191][ T6427] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.606932][ T6429] loop1: detected capacity change from 0 to 32768 [ 221.639602][ T6429] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.641042][ T6429] CPU: 1 PID: 6429 Comm: syz.1.641 Not tainted syzkaller #0 [ 221.642150][ T6429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 221.643775][ T6429] Call trace: [ 221.644290][ T6429] dump_backtrace+0x0/0x43c [ 221.645006][ T6429] show_stack+0x2c/0x3c [ 221.645645][ T6429] __dump_stack+0x30/0x40 [ 221.646320][ T6429] dump_stack_lvl+0xf8/0x160 [ 221.647025][ T6429] dump_stack+0x1c/0x5c [ 221.647677][ T6429] sysfs_create_dir_ns+0x22c/0x24c [ 221.648458][ T6429] kobject_add_internal+0x590/0xc54 [ 221.649297][ T6429] kobject_init_and_add+0x118/0x17c [ 221.650206][ T6429] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.650969][ T6429] gfs2_fill_super+0xdac/0x19e0 [ 221.651727][ T6429] get_tree_bdev+0x358/0x544 [ 221.652522][ T6429] gfs2_get_tree+0x54/0x1b4 [ 221.653327][ T6429] vfs_get_tree+0x90/0x274 [ 221.654033][ T6429] do_new_mount+0x228/0x810 [ 221.654750][ T6429] path_mount+0x5b4/0x1000 [ 221.655465][ T6429] __arm64_sys_mount+0x514/0x5e4 [ 221.656287][ T6429] invoke_syscall+0x98/0x2b8 [ 221.657059][ T6429] el0_svc_common+0x138/0x258 [ 221.657884][ T6429] do_el0_svc+0x58/0x14c [ 221.658646][ T6429] el0_svc+0x78/0x1e0 [ 221.659330][ T6429] el0t_64_sync_handler+0xcc/0xe4 [ 221.660170][ T6429] el0t_64_sync+0x1a0/0x1a4 [ 221.665217][ T6429] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.667200][ T6429] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:41 executed programs: 628 [ 221.795688][ T6431] loop1: detected capacity change from 0 to 32768 [ 221.883765][ T6431] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.884979][ T6431] CPU: 0 PID: 6431 Comm: syz.1.642 Not tainted syzkaller #0 [ 221.886107][ T6431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 221.887593][ T6431] Call trace: [ 221.888018][ T6431] dump_backtrace+0x0/0x43c [ 221.888763][ T6431] show_stack+0x2c/0x3c [ 221.889396][ T6431] __dump_stack+0x30/0x40 [ 221.890070][ T6431] dump_stack_lvl+0xf8/0x160 [ 221.890772][ T6431] dump_stack+0x1c/0x5c [ 221.891467][ T6431] sysfs_create_dir_ns+0x22c/0x24c [ 221.892243][ T6431] kobject_add_internal+0x590/0xc54 [ 221.893075][ T6431] kobject_init_and_add+0x118/0x17c [ 221.893879][ T6431] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.894668][ T6431] gfs2_fill_super+0xdac/0x19e0 [ 221.895481][ T6431] get_tree_bdev+0x358/0x544 [ 221.896116][ T6431] gfs2_get_tree+0x54/0x1b4 [ 221.896796][ T6431] vfs_get_tree+0x90/0x274 [ 221.897461][ T6431] do_new_mount+0x228/0x810 [ 221.898078][ T6431] path_mount+0x5b4/0x1000 [ 221.898669][ T6431] __arm64_sys_mount+0x514/0x5e4 [ 221.899419][ T6431] invoke_syscall+0x98/0x2b8 [ 221.900099][ T6431] el0_svc_common+0x138/0x258 [ 221.900779][ T6431] do_el0_svc+0x58/0x14c [ 221.901397][ T6431] el0_svc+0x78/0x1e0 [ 221.902031][ T6431] el0t_64_sync_handler+0xcc/0xe4 [ 221.902870][ T6431] el0t_64_sync+0x1a0/0x1a4 [ 221.903781][ T6431] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.905762][ T6431] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.031740][ T6433] loop1: detected capacity change from 0 to 32768 [ 222.113574][ T6433] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.114847][ T6433] CPU: 1 PID: 6433 Comm: syz.1.643 Not tainted syzkaller #0 [ 222.116074][ T6433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 222.117721][ T6433] Call trace: [ 222.118278][ T6433] dump_backtrace+0x0/0x43c [ 222.119038][ T6433] show_stack+0x2c/0x3c [ 222.119759][ T6433] __dump_stack+0x30/0x40 [ 222.120517][ T6433] dump_stack_lvl+0xf8/0x160 [ 222.121257][ T6433] dump_stack+0x1c/0x5c [ 222.121960][ T6433] sysfs_create_dir_ns+0x22c/0x24c [ 222.122848][ T6433] kobject_add_internal+0x590/0xc54 [ 222.123802][ T6433] kobject_init_and_add+0x118/0x17c [ 222.124722][ T6433] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.125537][ T6433] gfs2_fill_super+0xdac/0x19e0 [ 222.126325][ T6433] get_tree_bdev+0x358/0x544 [ 222.127141][ T6433] gfs2_get_tree+0x54/0x1b4 [ 222.127901][ T6433] vfs_get_tree+0x90/0x274 [ 222.128650][ T6433] do_new_mount+0x228/0x810 [ 222.129399][ T6433] path_mount+0x5b4/0x1000 [ 222.130089][ T6433] __arm64_sys_mount+0x514/0x5e4 [ 222.130874][ T6433] invoke_syscall+0x98/0x2b8 [ 222.131619][ T6433] el0_svc_common+0x138/0x258 [ 222.132371][ T6433] do_el0_svc+0x58/0x14c [ 222.133008][ T6433] el0_svc+0x78/0x1e0 [ 222.133658][ T6433] el0t_64_sync_handler+0xcc/0xe4 [ 222.134505][ T6433] el0t_64_sync+0x1a0/0x1a4 [ 222.136297][ T6433] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.138269][ T6433] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.325642][ T6435] loop1: detected capacity change from 0 to 32768 [ 222.359539][ T6435] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.360710][ T6435] CPU: 1 PID: 6435 Comm: syz.1.644 Not tainted syzkaller #0 [ 222.361911][ T6435] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 222.363659][ T6435] Call trace: [ 222.364167][ T6435] dump_backtrace+0x0/0x43c [ 222.364858][ T6435] show_stack+0x2c/0x3c [ 222.365535][ T6435] __dump_stack+0x30/0x40 [ 222.366255][ T6435] dump_stack_lvl+0xf8/0x160 [ 222.367031][ T6435] dump_stack+0x1c/0x5c [ 222.367749][ T6435] sysfs_create_dir_ns+0x22c/0x24c [ 222.368626][ T6435] kobject_add_internal+0x590/0xc54 [ 222.369551][ T6435] kobject_init_and_add+0x118/0x17c [ 222.370403][ T6435] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.371156][ T6435] gfs2_fill_super+0xdac/0x19e0 [ 222.371930][ T6435] get_tree_bdev+0x358/0x544 [ 222.372670][ T6435] gfs2_get_tree+0x54/0x1b4 [ 222.373401][ T6435] vfs_get_tree+0x90/0x274 [ 222.374125][ T6435] do_new_mount+0x228/0x810 [ 222.374793][ T6435] path_mount+0x5b4/0x1000 [ 222.375460][ T6435] __arm64_sys_mount+0x514/0x5e4 [ 222.376218][ T6435] invoke_syscall+0x98/0x2b8 [ 222.376904][ T6435] el0_svc_common+0x138/0x258 [ 222.377680][ T6435] do_el0_svc+0x58/0x14c [ 222.378583][ T6435] el0_svc+0x78/0x1e0 [ 222.379269][ T6435] el0t_64_sync_handler+0xcc/0xe4 [ 222.380156][ T6435] el0t_64_sync+0x1a0/0x1a4 [ 222.382362][ T6435] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.384381][ T6435] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.521271][ T6437] loop1: detected capacity change from 0 to 32768 [ 222.579699][ T6437] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.580976][ T6437] CPU: 1 PID: 6437 Comm: syz.1.645 Not tainted syzkaller #0 [ 222.582144][ T6437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 222.583888][ T6437] Call trace: [ 222.584444][ T6437] dump_backtrace+0x0/0x43c [ 222.585210][ T6437] show_stack+0x2c/0x3c [ 222.585888][ T6437] __dump_stack+0x30/0x40 [ 222.586560][ T6437] dump_stack_lvl+0xf8/0x160 [ 222.587253][ T6437] dump_stack+0x1c/0x5c [ 222.587858][ T6437] sysfs_create_dir_ns+0x22c/0x24c [ 222.588697][ T6437] kobject_add_internal+0x590/0xc54 [ 222.589546][ T6437] kobject_init_and_add+0x118/0x17c [ 222.590384][ T6437] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.591150][ T6437] gfs2_fill_super+0xdac/0x19e0 [ 222.591943][ T6437] get_tree_bdev+0x358/0x544 [ 222.592614][ T6437] gfs2_get_tree+0x54/0x1b4 [ 222.593299][ T6437] vfs_get_tree+0x90/0x274 [ 222.593967][ T6437] do_new_mount+0x228/0x810 [ 222.594635][ T6437] path_mount+0x5b4/0x1000 [ 222.595329][ T6437] __arm64_sys_mount+0x514/0x5e4 [ 222.596169][ T6437] invoke_syscall+0x98/0x2b8 [ 222.596963][ T6437] el0_svc_common+0x138/0x258 [ 222.597736][ T6437] do_el0_svc+0x58/0x14c [ 222.598397][ T6437] el0_svc+0x78/0x1e0 [ 222.598987][ T6437] el0t_64_sync_handler+0xcc/0xe4 [ 222.599853][ T6437] el0t_64_sync+0x1a0/0x1a4 [ 222.601266][ T6437] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.603316][ T6437] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.739403][ T6439] loop1: detected capacity change from 0 to 32768 [ 222.790266][ T6439] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.791465][ T6439] CPU: 1 PID: 6439 Comm: syz.1.646 Not tainted syzkaller #0 [ 222.792516][ T6439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 222.793976][ T6439] Call trace: [ 222.794461][ T6439] dump_backtrace+0x0/0x43c [ 222.795162][ T6439] show_stack+0x2c/0x3c [ 222.795815][ T6439] __dump_stack+0x30/0x40 [ 222.796547][ T6439] dump_stack_lvl+0xf8/0x160 [ 222.797302][ T6439] dump_stack+0x1c/0x5c [ 222.797977][ T6439] sysfs_create_dir_ns+0x22c/0x24c [ 222.798870][ T6439] kobject_add_internal+0x590/0xc54 [ 222.799704][ T6439] kobject_init_and_add+0x118/0x17c [ 222.800538][ T6439] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.801257][ T6439] gfs2_fill_super+0xdac/0x19e0 [ 222.802104][ T6439] get_tree_bdev+0x358/0x544 [ 222.802873][ T6439] gfs2_get_tree+0x54/0x1b4 [ 222.803602][ T6439] vfs_get_tree+0x90/0x274 [ 222.804292][ T6439] do_new_mount+0x228/0x810 [ 222.805079][ T6439] path_mount+0x5b4/0x1000 [ 222.805805][ T6439] __arm64_sys_mount+0x514/0x5e4 [ 222.806652][ T6439] invoke_syscall+0x98/0x2b8 [ 222.807394][ T6439] el0_svc_common+0x138/0x258 [ 222.808122][ T6439] do_el0_svc+0x58/0x14c [ 222.808862][ T6439] el0_svc+0x78/0x1e0 [ 222.809498][ T6439] el0t_64_sync_handler+0xcc/0xe4 [ 222.810280][ T6439] el0t_64_sync+0x1a0/0x1a4 [ 222.813368][ T6439] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.815326][ T6439] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.947993][ T6441] loop1: detected capacity change from 0 to 32768 [ 222.955434][ T6441] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.956619][ T6441] CPU: 1 PID: 6441 Comm: syz.1.647 Not tainted syzkaller #0 [ 222.957688][ T6441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 222.959242][ T6441] Call trace: [ 222.959688][ T6441] dump_backtrace+0x0/0x43c [ 222.960393][ T6441] show_stack+0x2c/0x3c [ 222.961027][ T6441] __dump_stack+0x30/0x40 [ 222.961666][ T6441] dump_stack_lvl+0xf8/0x160 [ 222.962419][ T6441] dump_stack+0x1c/0x5c [ 222.963014][ T6441] sysfs_create_dir_ns+0x22c/0x24c [ 222.963859][ T6441] kobject_add_internal+0x590/0xc54 [ 222.964682][ T6441] kobject_init_and_add+0x118/0x17c [ 222.965528][ T6441] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.966276][ T6441] gfs2_fill_super+0xdac/0x19e0 [ 222.967081][ T6441] get_tree_bdev+0x358/0x544 [ 222.967860][ T6441] gfs2_get_tree+0x54/0x1b4 [ 222.968568][ T6441] vfs_get_tree+0x90/0x274 [ 222.969357][ T6441] do_new_mount+0x228/0x810 [ 222.970123][ T6441] path_mount+0x5b4/0x1000 [ 222.970888][ T6441] __arm64_sys_mount+0x514/0x5e4 [ 222.971697][ T6441] invoke_syscall+0x98/0x2b8 [ 222.972500][ T6441] el0_svc_common+0x138/0x258 [ 222.973291][ T6441] do_el0_svc+0x58/0x14c [ 222.974030][ T6441] el0_svc+0x78/0x1e0 [ 222.974730][ T6441] el0t_64_sync_handler+0xcc/0xe4 [ 222.975612][ T6441] el0t_64_sync+0x1a0/0x1a4 [ 222.977811][ T6441] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.979907][ T6441] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.110309][ T6443] loop1: detected capacity change from 0 to 32768 [ 223.159585][ T6443] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.160872][ T6443] CPU: 1 PID: 6443 Comm: syz.1.648 Not tainted syzkaller #0 [ 223.162001][ T6443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 223.163691][ T6443] Call trace: [ 223.164230][ T6443] dump_backtrace+0x0/0x43c [ 223.164988][ T6443] show_stack+0x2c/0x3c [ 223.165681][ T6443] __dump_stack+0x30/0x40 [ 223.166411][ T6443] dump_stack_lvl+0xf8/0x160 [ 223.167172][ T6443] dump_stack+0x1c/0x5c [ 223.167865][ T6443] sysfs_create_dir_ns+0x22c/0x24c [ 223.168822][ T6443] kobject_add_internal+0x590/0xc54 [ 223.169683][ T6443] kobject_init_and_add+0x118/0x17c [ 223.170527][ T6443] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.171288][ T6443] gfs2_fill_super+0xdac/0x19e0 [ 223.172056][ T6443] get_tree_bdev+0x358/0x544 [ 223.172782][ T6443] gfs2_get_tree+0x54/0x1b4 [ 223.173469][ T6443] vfs_get_tree+0x90/0x274 [ 223.174142][ T6443] do_new_mount+0x228/0x810 [ 223.174951][ T6443] path_mount+0x5b4/0x1000 [ 223.175692][ T6443] __arm64_sys_mount+0x514/0x5e4 [ 223.176487][ T6443] invoke_syscall+0x98/0x2b8 [ 223.177284][ T6443] el0_svc_common+0x138/0x258 [ 223.178035][ T6443] do_el0_svc+0x58/0x14c [ 223.178702][ T6443] el0_svc+0x78/0x1e0 [ 223.179417][ T6443] el0t_64_sync_handler+0xcc/0xe4 [ 223.180283][ T6443] el0t_64_sync+0x1a0/0x1a4 [ 223.182374][ T6443] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.184468][ T6443] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.313279][ T6445] loop1: detected capacity change from 0 to 32768 [ 223.339959][ T6445] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.341667][ T6445] CPU: 1 PID: 6445 Comm: syz.1.649 Not tainted syzkaller #0 [ 223.342828][ T6445] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 223.344303][ T6445] Call trace: [ 223.344797][ T6445] dump_backtrace+0x0/0x43c [ 223.345536][ T6445] show_stack+0x2c/0x3c [ 223.346186][ T6445] __dump_stack+0x30/0x40 [ 223.346864][ T6445] dump_stack_lvl+0xf8/0x160 [ 223.347633][ T6445] dump_stack+0x1c/0x5c [ 223.348320][ T6445] sysfs_create_dir_ns+0x22c/0x24c [ 223.349196][ T6445] kobject_add_internal+0x590/0xc54 [ 223.350041][ T6445] kobject_init_and_add+0x118/0x17c [ 223.350909][ T6445] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.351681][ T6445] gfs2_fill_super+0xdac/0x19e0 [ 223.352504][ T6445] get_tree_bdev+0x358/0x544 [ 223.353251][ T6445] gfs2_get_tree+0x54/0x1b4 [ 223.354024][ T6445] vfs_get_tree+0x90/0x274 [ 223.354736][ T6445] do_new_mount+0x228/0x810 [ 223.355489][ T6445] path_mount+0x5b4/0x1000 [ 223.356263][ T6445] __arm64_sys_mount+0x514/0x5e4 [ 223.357075][ T6445] invoke_syscall+0x98/0x2b8 [ 223.357882][ T6445] el0_svc_common+0x138/0x258 [ 223.358687][ T6445] do_el0_svc+0x58/0x14c [ 223.359409][ T6445] el0_svc+0x78/0x1e0 [ 223.360107][ T6445] el0t_64_sync_handler+0xcc/0xe4 [ 223.360991][ T6445] el0t_64_sync+0x1a0/0x1a4 [ 223.365816][ T6445] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.367939][ T6445] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.448382][ T1968] Bluetooth: hci2: command 0x0419 tx timeout [ 223.506562][ T6447] loop1: detected capacity change from 0 to 32768 [ 223.558492][ T6447] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.559821][ T6447] CPU: 1 PID: 6447 Comm: syz.1.650 Not tainted syzkaller #0 [ 223.560952][ T6447] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 223.562615][ T6447] Call trace: [ 223.563104][ T6447] dump_backtrace+0x0/0x43c [ 223.563906][ T6447] show_stack+0x2c/0x3c [ 223.564584][ T6447] __dump_stack+0x30/0x40 [ 223.565329][ T6447] dump_stack_lvl+0xf8/0x160 [ 223.566125][ T6447] dump_stack+0x1c/0x5c [ 223.566797][ T6447] sysfs_create_dir_ns+0x22c/0x24c [ 223.567660][ T6447] kobject_add_internal+0x590/0xc54 [ 223.568545][ T6447] kobject_init_and_add+0x118/0x17c [ 223.569421][ T6447] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.570211][ T6447] gfs2_fill_super+0xdac/0x19e0 [ 223.571077][ T6447] get_tree_bdev+0x358/0x544 [ 223.571868][ T6447] gfs2_get_tree+0x54/0x1b4 [ 223.572554][ T6447] vfs_get_tree+0x90/0x274 [ 223.573194][ T6447] do_new_mount+0x228/0x810 [ 223.573974][ T6447] path_mount+0x5b4/0x1000 [ 223.574720][ T6447] __arm64_sys_mount+0x514/0x5e4 [ 223.575577][ T6447] invoke_syscall+0x98/0x2b8 [ 223.576369][ T6447] el0_svc_common+0x138/0x258 [ 223.577145][ T6447] do_el0_svc+0x58/0x14c [ 223.577812][ T6447] el0_svc+0x78/0x1e0 [ 223.578451][ T6447] el0t_64_sync_handler+0xcc/0xe4 [ 223.579249][ T6447] el0t_64_sync+0x1a0/0x1a4 [ 223.580084][ T6447] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.582104][ T6447] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.725096][ T6449] loop1: detected capacity change from 0 to 32768 [ 223.779824][ T6449] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.781102][ T6449] CPU: 1 PID: 6449 Comm: syz.1.651 Not tainted syzkaller #0 [ 223.782258][ T6449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 223.783942][ T6449] Call trace: [ 223.784460][ T6449] dump_backtrace+0x0/0x43c [ 223.785194][ T6449] show_stack+0x2c/0x3c [ 223.785856][ T6449] __dump_stack+0x30/0x40 [ 223.786575][ T6449] dump_stack_lvl+0xf8/0x160 [ 223.787280][ T6449] dump_stack+0x1c/0x5c [ 223.787917][ T6449] sysfs_create_dir_ns+0x22c/0x24c [ 223.788738][ T6449] kobject_add_internal+0x590/0xc54 [ 223.789543][ T6449] kobject_init_and_add+0x118/0x17c [ 223.790351][ T6449] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.791099][ T6449] gfs2_fill_super+0xdac/0x19e0 [ 223.791843][ T6449] get_tree_bdev+0x358/0x544 [ 223.792559][ T6449] gfs2_get_tree+0x54/0x1b4 [ 223.793275][ T6449] vfs_get_tree+0x90/0x274 [ 223.793942][ T6449] do_new_mount+0x228/0x810 [ 223.794631][ T6449] path_mount+0x5b4/0x1000 [ 223.795312][ T6449] __arm64_sys_mount+0x514/0x5e4 [ 223.796078][ T6449] invoke_syscall+0x98/0x2b8 [ 223.796775][ T6449] el0_svc_common+0x138/0x258 [ 223.797562][ T6449] do_el0_svc+0x58/0x14c [ 223.798295][ T6449] el0_svc+0x78/0x1e0 [ 223.798947][ T6449] el0t_64_sync_handler+0xcc/0xe4 [ 223.799740][ T6449] el0t_64_sync+0x1a0/0x1a4 [ 223.800698][ T6449] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.802820][ T6449] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.954291][ T6451] loop1: detected capacity change from 0 to 32768 [ 223.999716][ T6451] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.000959][ T6451] CPU: 1 PID: 6451 Comm: syz.1.652 Not tainted syzkaller #0 [ 224.002122][ T6451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.003698][ T6451] Call trace: [ 224.004171][ T6451] dump_backtrace+0x0/0x43c [ 224.004909][ T6451] show_stack+0x2c/0x3c [ 224.005656][ T6451] __dump_stack+0x30/0x40 [ 224.006372][ T6451] dump_stack_lvl+0xf8/0x160 [ 224.007044][ T6451] dump_stack+0x1c/0x5c [ 224.007663][ T6451] sysfs_create_dir_ns+0x22c/0x24c [ 224.008468][ T6451] kobject_add_internal+0x590/0xc54 [ 224.009306][ T6451] kobject_init_and_add+0x118/0x17c [ 224.010091][ T6451] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.010938][ T6451] gfs2_fill_super+0xdac/0x19e0 [ 224.011709][ T6451] get_tree_bdev+0x358/0x544 [ 224.012445][ T6451] gfs2_get_tree+0x54/0x1b4 [ 224.013154][ T6451] vfs_get_tree+0x90/0x274 [ 224.013828][ T6451] do_new_mount+0x228/0x810 [ 224.014589][ T6451] path_mount+0x5b4/0x1000 [ 224.015358][ T6451] __arm64_sys_mount+0x514/0x5e4 [ 224.016219][ T6451] invoke_syscall+0x98/0x2b8 [ 224.016960][ T6451] el0_svc_common+0x138/0x258 [ 224.017721][ T6451] do_el0_svc+0x58/0x14c [ 224.018373][ T6451] el0_svc+0x78/0x1e0 [ 224.018987][ T6451] el0t_64_sync_handler+0xcc/0xe4 [ 224.019824][ T6451] el0t_64_sync+0x1a0/0x1a4 [ 224.021960][ T6451] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.023901][ T6451] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.210051][ T6453] loop1: detected capacity change from 0 to 32768 [ 224.264346][ T6453] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.265533][ T6453] CPU: 0 PID: 6453 Comm: syz.1.653 Not tainted syzkaller #0 [ 224.266556][ T6453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.268050][ T6453] Call trace: [ 224.268591][ T6453] dump_backtrace+0x0/0x43c [ 224.269297][ T6453] show_stack+0x2c/0x3c [ 224.269906][ T6453] __dump_stack+0x30/0x40 [ 224.270554][ T6453] dump_stack_lvl+0xf8/0x160 [ 224.271364][ T6453] dump_stack+0x1c/0x5c [ 224.272013][ T6453] sysfs_create_dir_ns+0x22c/0x24c [ 224.272805][ T6453] kobject_add_internal+0x590/0xc54 [ 224.273673][ T6453] kobject_init_and_add+0x118/0x17c [ 224.274533][ T6453] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.275245][ T6453] gfs2_fill_super+0xdac/0x19e0 [ 224.275976][ T6453] get_tree_bdev+0x358/0x544 [ 224.276679][ T6453] gfs2_get_tree+0x54/0x1b4 [ 224.277348][ T6453] vfs_get_tree+0x90/0x274 [ 224.278010][ T6453] do_new_mount+0x228/0x810 [ 224.278690][ T6453] path_mount+0x5b4/0x1000 [ 224.279353][ T6453] __arm64_sys_mount+0x514/0x5e4 [ 224.280149][ T6453] invoke_syscall+0x98/0x2b8 [ 224.280918][ T6453] el0_svc_common+0x138/0x258 [ 224.281664][ T6453] do_el0_svc+0x58/0x14c [ 224.282322][ T6453] el0_svc+0x78/0x1e0 [ 224.282946][ T6453] el0t_64_sync_handler+0xcc/0xe4 [ 224.283749][ T6453] el0t_64_sync+0x1a0/0x1a4 [ 224.286013][ T6453] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.287982][ T6453] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.419231][ T6455] loop1: detected capacity change from 0 to 32768 [ 224.469585][ T6455] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.470727][ T6455] CPU: 1 PID: 6455 Comm: syz.1.654 Not tainted syzkaller #0 [ 224.471773][ T6455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.473408][ T6455] Call trace: [ 224.473925][ T6455] dump_backtrace+0x0/0x43c [ 224.474607][ T6455] show_stack+0x2c/0x3c [ 224.475229][ T6455] __dump_stack+0x30/0x40 [ 224.475886][ T6455] dump_stack_lvl+0xf8/0x160 [ 224.476643][ T6455] dump_stack+0x1c/0x5c [ 224.477320][ T6455] sysfs_create_dir_ns+0x22c/0x24c [ 224.478133][ T6455] kobject_add_internal+0x590/0xc54 [ 224.479004][ T6455] kobject_init_and_add+0x118/0x17c [ 224.479823][ T6455] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.480646][ T6455] gfs2_fill_super+0xdac/0x19e0 [ 224.481428][ T6455] get_tree_bdev+0x358/0x544 [ 224.482142][ T6455] gfs2_get_tree+0x54/0x1b4 [ 224.482843][ T6455] vfs_get_tree+0x90/0x274 [ 224.483627][ T6455] do_new_mount+0x228/0x810 [ 224.484400][ T6455] path_mount+0x5b4/0x1000 [ 224.485135][ T6455] __arm64_sys_mount+0x514/0x5e4 [ 224.485953][ T6455] invoke_syscall+0x98/0x2b8 [ 224.486700][ T6455] el0_svc_common+0x138/0x258 [ 224.487463][ T6455] do_el0_svc+0x58/0x14c [ 224.488213][ T6455] el0_svc+0x78/0x1e0 [ 224.488859][ T6455] el0t_64_sync_handler+0xcc/0xe4 [ 224.489644][ T6455] el0t_64_sync+0x1a0/0x1a4 [ 224.491957][ T6455] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.493824][ T6455] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.676995][ T6457] loop1: detected capacity change from 0 to 32768 [ 224.719728][ T6457] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.721099][ T6457] CPU: 1 PID: 6457 Comm: syz.1.655 Not tainted syzkaller #0 [ 224.722266][ T6457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.723860][ T6457] Call trace: [ 224.724400][ T6457] dump_backtrace+0x0/0x43c [ 224.725157][ T6457] show_stack+0x2c/0x3c [ 224.725875][ T6457] __dump_stack+0x30/0x40 [ 224.726628][ T6457] dump_stack_lvl+0xf8/0x160 [ 224.727445][ T6457] dump_stack+0x1c/0x5c [ 224.728173][ T6457] sysfs_create_dir_ns+0x22c/0x24c [ 224.729088][ T6457] kobject_add_internal+0x590/0xc54 [ 224.729919][ T6457] kobject_init_and_add+0x118/0x17c [ 224.730768][ T6457] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.731527][ T6457] gfs2_fill_super+0xdac/0x19e0 [ 224.732290][ T6457] get_tree_bdev+0x358/0x544 [ 224.733035][ T6457] gfs2_get_tree+0x54/0x1b4 [ 224.733798][ T6457] vfs_get_tree+0x90/0x274 [ 224.734483][ T6457] do_new_mount+0x228/0x810 [ 224.735181][ T6457] path_mount+0x5b4/0x1000 [ 224.735870][ T6457] __arm64_sys_mount+0x514/0x5e4 [ 224.736660][ T6457] invoke_syscall+0x98/0x2b8 [ 224.737402][ T6457] el0_svc_common+0x138/0x258 [ 224.738180][ T6457] do_el0_svc+0x58/0x14c [ 224.738835][ T6457] el0_svc+0x78/0x1e0 [ 224.739433][ T6457] el0t_64_sync_handler+0xcc/0xe4 [ 224.740173][ T6457] el0t_64_sync+0x1a0/0x1a4 [ 224.741152][ T6457] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.743248][ T6457] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.877247][ T6459] loop1: detected capacity change from 0 to 32768 [ 224.885123][ T6459] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.886253][ T6459] CPU: 0 PID: 6459 Comm: syz.1.656 Not tainted syzkaller #0 [ 224.887239][ T6459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.888812][ T6459] Call trace: [ 224.889313][ T6459] dump_backtrace+0x0/0x43c [ 224.890047][ T6459] show_stack+0x2c/0x3c [ 224.890766][ T6459] __dump_stack+0x30/0x40 [ 224.891506][ T6459] dump_stack_lvl+0xf8/0x160 [ 224.892267][ T6459] dump_stack+0x1c/0x5c [ 224.892957][ T6459] sysfs_create_dir_ns+0x22c/0x24c [ 224.893796][ T6459] kobject_add_internal+0x590/0xc54 [ 224.894582][ T6459] kobject_init_and_add+0x118/0x17c [ 224.895453][ T6459] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.896270][ T6459] gfs2_fill_super+0xdac/0x19e0 [ 224.897001][ T6459] get_tree_bdev+0x358/0x544 [ 224.897794][ T6459] gfs2_get_tree+0x54/0x1b4 [ 224.898521][ T6459] vfs_get_tree+0x90/0x274 [ 224.899255][ T6459] do_new_mount+0x228/0x810 [ 224.899997][ T6459] path_mount+0x5b4/0x1000 [ 224.900714][ T6459] __arm64_sys_mount+0x514/0x5e4 [ 224.901497][ T6459] invoke_syscall+0x98/0x2b8 [ 224.902239][ T6459] el0_svc_common+0x138/0x258 [ 224.903004][ T6459] do_el0_svc+0x58/0x14c [ 224.903686][ T6459] el0_svc+0x78/0x1e0 [ 224.904353][ T6459] el0t_64_sync_handler+0xcc/0xe4 [ 224.905225][ T6459] el0t_64_sync+0x1a0/0x1a4 [ 224.907521][ T6459] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.909833][ T6459] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.038454][ T6461] loop1: detected capacity change from 0 to 32768 [ 225.109626][ T6461] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.110882][ T6461] CPU: 0 PID: 6461 Comm: syz.1.657 Not tainted syzkaller #0 [ 225.111908][ T6461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 225.113504][ T6461] Call trace: [ 225.114013][ T6461] dump_backtrace+0x0/0x43c [ 225.114771][ T6461] show_stack+0x2c/0x3c [ 225.115440][ T6461] __dump_stack+0x30/0x40 [ 225.116084][ T6461] dump_stack_lvl+0xf8/0x160 [ 225.116745][ T6461] dump_stack+0x1c/0x5c [ 225.117348][ T6461] sysfs_create_dir_ns+0x22c/0x24c [ 225.118158][ T6461] kobject_add_internal+0x590/0xc54 [ 225.119014][ T6461] kobject_init_and_add+0x118/0x17c [ 225.119886][ T6461] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.120702][ T6461] gfs2_fill_super+0xdac/0x19e0 [ 225.121534][ T6461] get_tree_bdev+0x358/0x544 [ 225.122273][ T6461] gfs2_get_tree+0x54/0x1b4 [ 225.123025][ T6461] vfs_get_tree+0x90/0x274 [ 225.123700][ T6461] do_new_mount+0x228/0x810 [ 225.124414][ T6461] path_mount+0x5b4/0x1000 [ 225.125180][ T6461] __arm64_sys_mount+0x514/0x5e4 [ 225.125982][ T6461] invoke_syscall+0x98/0x2b8 [ 225.126713][ T6461] el0_svc_common+0x138/0x258 [ 225.127456][ T6461] do_el0_svc+0x58/0x14c [ 225.128119][ T6461] el0_svc+0x78/0x1e0 [ 225.128740][ T6461] el0t_64_sync_handler+0xcc/0xe4 [ 225.129579][ T6461] el0t_64_sync+0x1a0/0x1a4 [ 225.131779][ T6461] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.133689][ T6461] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.270441][ T6463] loop1: detected capacity change from 0 to 32768 [ 225.317894][ T6463] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.321300][ T6463] CPU: 1 PID: 6463 Comm: syz.1.658 Not tainted syzkaller #0 [ 225.322455][ T6463] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 225.323993][ T6463] Call trace: [ 225.324470][ T6463] dump_backtrace+0x0/0x43c [ 225.325135][ T6463] show_stack+0x2c/0x3c [ 225.325740][ T6463] __dump_stack+0x30/0x40 [ 225.326381][ T6463] dump_stack_lvl+0xf8/0x160 [ 225.327075][ T6463] dump_stack+0x1c/0x5c [ 225.327708][ T6463] sysfs_create_dir_ns+0x22c/0x24c [ 225.328476][ T6463] kobject_add_internal+0x590/0xc54 [ 225.329260][ T6463] kobject_init_and_add+0x118/0x17c [ 225.330074][ T6463] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.330779][ T6463] gfs2_fill_super+0xdac/0x19e0 [ 225.331479][ T6463] get_tree_bdev+0x358/0x544 [ 225.332213][ T6463] gfs2_get_tree+0x54/0x1b4 [ 225.332935][ T6463] vfs_get_tree+0x90/0x274 [ 225.333629][ T6463] do_new_mount+0x228/0x810 [ 225.334321][ T6463] path_mount+0x5b4/0x1000 [ 225.334975][ T6463] __arm64_sys_mount+0x514/0x5e4 [ 225.335725][ T6463] invoke_syscall+0x98/0x2b8 [ 225.336415][ T6463] el0_svc_common+0x138/0x258 [ 225.337120][ T6463] do_el0_svc+0x58/0x14c [ 225.337745][ T6463] el0_svc+0x78/0x1e0 [ 225.338327][ T6463] el0t_64_sync_handler+0xcc/0xe4 [ 225.339177][ T6463] el0t_64_sync+0x1a0/0x1a4 [ 225.340650][ T6463] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.342750][ T6463] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.471275][ T6465] loop1: detected capacity change from 0 to 32768 [ 225.510085][ T6465] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.511334][ T6465] CPU: 1 PID: 6465 Comm: syz.1.659 Not tainted syzkaller #0 [ 225.512467][ T6465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 225.514034][ T6465] Call trace: [ 225.514501][ T6465] dump_backtrace+0x0/0x43c [ 225.515219][ T6465] show_stack+0x2c/0x3c [ 225.515897][ T6465] __dump_stack+0x30/0x40 [ 225.516557][ T6465] dump_stack_lvl+0xf8/0x160 [ 225.517295][ T6465] dump_stack+0x1c/0x5c [ 225.517977][ T6465] sysfs_create_dir_ns+0x22c/0x24c [ 225.518786][ T6465] kobject_add_internal+0x590/0xc54 [ 225.519694][ T6465] kobject_init_and_add+0x118/0x17c [ 225.520595][ T6465] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.521344][ T6465] gfs2_fill_super+0xdac/0x19e0 [ 225.522099][ T6465] get_tree_bdev+0x358/0x544 [ 225.522908][ T6465] gfs2_get_tree+0x54/0x1b4 [ 225.523672][ T6465] vfs_get_tree+0x90/0x274 [ 225.524349][ T6465] do_new_mount+0x228/0x810 [ 225.525115][ T6465] path_mount+0x5b4/0x1000 [ 225.525858][ T6465] __arm64_sys_mount+0x514/0x5e4 [ 225.526702][ T6465] invoke_syscall+0x98/0x2b8 [ 225.527464][ T6465] el0_svc_common+0x138/0x258 [ 225.528264][ T6465] do_el0_svc+0x58/0x14c [ 225.528993][ T6465] el0_svc+0x78/0x1e0 [ 225.529686][ T6465] el0t_64_sync_handler+0xcc/0xe4 [ 225.530480][ T6465] el0t_64_sync+0x1a0/0x1a4 [ 225.531384][ T6465] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.533403][ T6465] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.687826][ T6467] loop1: detected capacity change from 0 to 32768 [ 225.695253][ T6467] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.696549][ T6467] CPU: 0 PID: 6467 Comm: syz.1.660 Not tainted syzkaller #0 [ 225.697716][ T6467] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 225.699408][ T6467] Call trace: [ 225.699906][ T6467] dump_backtrace+0x0/0x43c [ 225.700672][ T6467] show_stack+0x2c/0x3c [ 225.701384][ T6467] __dump_stack+0x30/0x40 [ 225.702107][ T6467] dump_stack_lvl+0xf8/0x160 [ 225.702828][ T6467] dump_stack+0x1c/0x5c [ 225.703522][ T6467] sysfs_create_dir_ns+0x22c/0x24c [ 225.704363][ T6467] kobject_add_internal+0x590/0xc54 [ 225.705150][ T6467] kobject_init_and_add+0x118/0x17c [ 225.705949][ T6467] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.706754][ T6467] gfs2_fill_super+0xdac/0x19e0 [ 225.707542][ T6467] get_tree_bdev+0x358/0x544 [ 225.708268][ T6467] gfs2_get_tree+0x54/0x1b4 [ 225.709003][ T6467] vfs_get_tree+0x90/0x274 [ 225.709689][ T6467] do_new_mount+0x228/0x810 [ 225.710487][ T6467] path_mount+0x5b4/0x1000 [ 225.711194][ T6467] __arm64_sys_mount+0x514/0x5e4 [ 225.712012][ T6467] invoke_syscall+0x98/0x2b8 [ 225.712787][ T6467] el0_svc_common+0x138/0x258 [ 225.713531][ T6467] do_el0_svc+0x58/0x14c [ 225.714185][ T6467] el0_svc+0x78/0x1e0 [ 225.714824][ T6467] el0t_64_sync_handler+0xcc/0xe4 [ 225.715576][ T6467] el0t_64_sync+0x1a0/0x1a4 [ 225.717838][ T6467] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.719955][ T6467] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.846250][ T6469] loop1: detected capacity change from 0 to 32768 [ 225.901874][ T6469] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.903146][ T6469] CPU: 1 PID: 6469 Comm: syz.1.661 Not tainted syzkaller #0 [ 225.904276][ T6469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 225.905869][ T6469] Call trace: [ 225.906395][ T6469] dump_backtrace+0x0/0x43c [ 225.907125][ T6469] show_stack+0x2c/0x3c [ 225.907775][ T6469] __dump_stack+0x30/0x40 [ 225.908401][ T6469] dump_stack_lvl+0xf8/0x160 [ 225.909096][ T6469] dump_stack+0x1c/0x5c [ 225.909769][ T6469] sysfs_create_dir_ns+0x22c/0x24c [ 225.910659][ T6469] kobject_add_internal+0x590/0xc54 [ 225.911487][ T6469] kobject_init_and_add+0x118/0x17c [ 225.912375][ T6469] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.913158][ T6469] gfs2_fill_super+0xdac/0x19e0 [ 225.914001][ T6469] get_tree_bdev+0x358/0x544 [ 225.914839][ T6469] gfs2_get_tree+0x54/0x1b4 [ 225.915579][ T6469] vfs_get_tree+0x90/0x274 [ 225.916258][ T6469] do_new_mount+0x228/0x810 [ 225.916977][ T6469] path_mount+0x5b4/0x1000 [ 225.917646][ T6469] __arm64_sys_mount+0x514/0x5e4 [ 225.918459][ T6469] invoke_syscall+0x98/0x2b8 [ 225.919211][ T6469] el0_svc_common+0x138/0x258 [ 225.919964][ T6469] do_el0_svc+0x58/0x14c [ 225.920703][ T6469] el0_svc+0x78/0x1e0 [ 225.921388][ T6469] el0t_64_sync_handler+0xcc/0xe4 [ 225.922257][ T6469] el0t_64_sync+0x1a0/0x1a4 [ 225.923459][ T6469] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.925576][ T6469] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.053319][ T6471] loop1: detected capacity change from 0 to 32768 [ 226.093457][ T6471] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.094699][ T6471] CPU: 1 PID: 6471 Comm: syz.1.662 Not tainted syzkaller #0 [ 226.095783][ T6471] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.097415][ T6471] Call trace: [ 226.097964][ T6471] dump_backtrace+0x0/0x43c [ 226.098718][ T6471] show_stack+0x2c/0x3c [ 226.099394][ T6471] __dump_stack+0x30/0x40 [ 226.100145][ T6471] dump_stack_lvl+0xf8/0x160 [ 226.100931][ T6471] dump_stack+0x1c/0x5c [ 226.101593][ T6471] sysfs_create_dir_ns+0x22c/0x24c [ 226.102488][ T6471] kobject_add_internal+0x590/0xc54 [ 226.103347][ T6471] kobject_init_and_add+0x118/0x17c [ 226.104225][ T6471] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.104937][ T6471] gfs2_fill_super+0xdac/0x19e0 [ 226.105660][ T6471] get_tree_bdev+0x358/0x544 [ 226.106353][ T6471] gfs2_get_tree+0x54/0x1b4 [ 226.107097][ T6471] vfs_get_tree+0x90/0x274 [ 226.107759][ T6471] do_new_mount+0x228/0x810 [ 226.108445][ T6471] path_mount+0x5b4/0x1000 [ 226.109069][ T6471] __arm64_sys_mount+0x514/0x5e4 [ 226.109849][ T6471] invoke_syscall+0x98/0x2b8 [ 226.110582][ T6471] el0_svc_common+0x138/0x258 [ 226.111324][ T6471] do_el0_svc+0x58/0x14c [ 226.112038][ T6471] el0_svc+0x78/0x1e0 [ 226.112678][ T6471] el0t_64_sync_handler+0xcc/0xe4 [ 226.113492][ T6471] el0t_64_sync+0x1a0/0x1a4 [ 226.114331][ T6471] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.116303][ T6471] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.252688][ T6473] loop1: detected capacity change from 0 to 32768 [ 226.289625][ T6473] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.290826][ T6473] CPU: 1 PID: 6473 Comm: syz.1.663 Not tainted syzkaller #0 [ 226.291976][ T6473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.293497][ T6473] Call trace: [ 226.293991][ T6473] dump_backtrace+0x0/0x43c [ 226.294680][ T6473] show_stack+0x2c/0x3c [ 226.295337][ T6473] __dump_stack+0x30/0x40 [ 226.296047][ T6473] dump_stack_lvl+0xf8/0x160 [ 226.296740][ T6473] dump_stack+0x1c/0x5c [ 226.297357][ T6473] sysfs_create_dir_ns+0x22c/0x24c [ 226.298101][ T6473] kobject_add_internal+0x590/0xc54 [ 226.298808][ T6473] kobject_init_and_add+0x118/0x17c [ 226.299611][ T6473] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.300416][ T6473] gfs2_fill_super+0xdac/0x19e0 [ 226.301213][ T6473] get_tree_bdev+0x358/0x544 [ 226.302005][ T6473] gfs2_get_tree+0x54/0x1b4 [ 226.302772][ T6473] vfs_get_tree+0x90/0x274 [ 226.303561][ T6473] do_new_mount+0x228/0x810 [ 226.304333][ T6473] path_mount+0x5b4/0x1000 [ 226.305123][ T6473] __arm64_sys_mount+0x514/0x5e4 [ 226.305958][ T6473] invoke_syscall+0x98/0x2b8 [ 226.306699][ T6473] el0_svc_common+0x138/0x258 [ 226.307533][ T6473] do_el0_svc+0x58/0x14c [ 226.308253][ T6473] el0_svc+0x78/0x1e0 [ 226.308842][ T6473] el0t_64_sync_handler+0xcc/0xe4 [ 226.309601][ T6473] el0t_64_sync+0x1a0/0x1a4 [ 226.311788][ T6473] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.313978][ T6473] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.442670][ T6475] loop1: detected capacity change from 0 to 32768 [ 226.483125][ T6475] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.484372][ T6475] CPU: 1 PID: 6475 Comm: syz.1.664 Not tainted syzkaller #0 [ 226.485482][ T6475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.487013][ T6475] Call trace: [ 226.487546][ T6475] dump_backtrace+0x0/0x43c [ 226.488230][ T6475] show_stack+0x2c/0x3c [ 226.488864][ T6475] __dump_stack+0x30/0x40 [ 226.489531][ T6475] dump_stack_lvl+0xf8/0x160 [ 226.490207][ T6475] dump_stack+0x1c/0x5c [ 226.490923][ T6475] sysfs_create_dir_ns+0x22c/0x24c [ 226.491696][ T6475] kobject_add_internal+0x590/0xc54 [ 226.492463][ T6475] kobject_init_and_add+0x118/0x17c [ 226.493311][ T6475] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.494020][ T6475] gfs2_fill_super+0xdac/0x19e0 [ 226.494725][ T6475] get_tree_bdev+0x358/0x544 [ 226.495391][ T6475] gfs2_get_tree+0x54/0x1b4 [ 226.496087][ T6475] vfs_get_tree+0x90/0x274 [ 226.496721][ T6475] do_new_mount+0x228/0x810 [ 226.497426][ T6475] path_mount+0x5b4/0x1000 [ 226.498059][ T6475] __arm64_sys_mount+0x514/0x5e4 [ 226.498804][ T6475] invoke_syscall+0x98/0x2b8 [ 226.499574][ T6475] el0_svc_common+0x138/0x258 [ 226.500358][ T6475] do_el0_svc+0x58/0x14c [ 226.501020][ T6475] el0_svc+0x78/0x1e0 [ 226.501721][ T6475] el0t_64_sync_handler+0xcc/0xe4 [ 226.502558][ T6475] el0t_64_sync+0x1a0/0x1a4 [ 226.504160][ T6475] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.506222][ T6475] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.696999][ T6477] loop1: detected capacity change from 0 to 32768 [ 226.730543][ T6477] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.731824][ T6477] CPU: 1 PID: 6477 Comm: syz.1.665 Not tainted syzkaller #0 [ 226.733070][ T6477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.734696][ T6477] Call trace: [ 226.735225][ T6477] dump_backtrace+0x0/0x43c [ 226.735939][ T6477] show_stack+0x2c/0x3c [ 226.736577][ T6477] __dump_stack+0x30/0x40 [ 226.737295][ T6477] dump_stack_lvl+0xf8/0x160 [ 226.738043][ T6477] dump_stack+0x1c/0x5c [ 226.738711][ T6477] sysfs_create_dir_ns+0x22c/0x24c [ 226.739567][ T6477] kobject_add_internal+0x590/0xc54 [ 226.740411][ T6477] kobject_init_and_add+0x118/0x17c [ 226.741360][ T6477] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.742168][ T6477] gfs2_fill_super+0xdac/0x19e0 [ 226.742987][ T6477] get_tree_bdev+0x358/0x544 [ 226.743737][ T6477] gfs2_get_tree+0x54/0x1b4 [ 226.744498][ T6477] vfs_get_tree+0x90/0x274 [ 226.745236][ T6477] do_new_mount+0x228/0x810 [ 226.745941][ T6477] path_mount+0x5b4/0x1000 [ 226.746649][ T6477] __arm64_sys_mount+0x514/0x5e4 [ 226.747446][ T6477] invoke_syscall+0x98/0x2b8 [ 226.748161][ T6477] el0_svc_common+0x138/0x258 [ 226.748857][ T6477] do_el0_svc+0x58/0x14c [ 226.749533][ T6477] el0_svc+0x78/0x1e0 [ 226.750139][ T6477] el0t_64_sync_handler+0xcc/0xe4 [ 226.750969][ T6477] el0t_64_sync+0x1a0/0x1a4 [ 226.755783][ T6477] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.757850][ T6477] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:46 executed programs: 652 [ 226.891952][ T6479] loop1: detected capacity change from 0 to 32768 [ 226.899504][ T6479] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.900721][ T6479] CPU: 0 PID: 6479 Comm: syz.1.666 Not tainted syzkaller #0 [ 226.901955][ T6479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.903396][ T6479] Call trace: [ 226.903866][ T6479] dump_backtrace+0x0/0x43c [ 226.904479][ T6479] show_stack+0x2c/0x3c [ 226.905090][ T6479] __dump_stack+0x30/0x40 [ 226.905723][ T6479] dump_stack_lvl+0xf8/0x160 [ 226.906499][ T6479] dump_stack+0x1c/0x5c [ 226.907166][ T6479] sysfs_create_dir_ns+0x22c/0x24c [ 226.907990][ T6479] kobject_add_internal+0x590/0xc54 [ 226.908762][ T6479] kobject_init_and_add+0x118/0x17c [ 226.909534][ T6479] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.910225][ T6479] gfs2_fill_super+0xdac/0x19e0 [ 226.910942][ T6479] get_tree_bdev+0x358/0x544 [ 226.911625][ T6479] gfs2_get_tree+0x54/0x1b4 [ 226.912232][ T6479] vfs_get_tree+0x90/0x274 [ 226.912904][ T6479] do_new_mount+0x228/0x810 [ 226.913526][ T6479] path_mount+0x5b4/0x1000 [ 226.914170][ T6479] __arm64_sys_mount+0x514/0x5e4 [ 226.914880][ T6479] invoke_syscall+0x98/0x2b8 [ 226.915531][ T6479] el0_svc_common+0x138/0x258 [ 226.916164][ T6479] do_el0_svc+0x58/0x14c [ 226.916804][ T6479] el0_svc+0x78/0x1e0 [ 226.917394][ T6479] el0t_64_sync_handler+0xcc/0xe4 [ 226.918150][ T6479] el0t_64_sync+0x1a0/0x1a4 [ 226.920395][ T6479] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.922562][ T6479] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.099624][ T6481] loop1: detected capacity change from 0 to 32768 [ 227.139645][ T6481] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.141550][ T6481] CPU: 0 PID: 6481 Comm: syz.1.667 Not tainted syzkaller #0 [ 227.142665][ T6481] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.144056][ T6481] Call trace: [ 227.144474][ T6481] dump_backtrace+0x0/0x43c [ 227.145073][ T6481] show_stack+0x2c/0x3c [ 227.145691][ T6481] __dump_stack+0x30/0x40 [ 227.146282][ T6481] dump_stack_lvl+0xf8/0x160 [ 227.146954][ T6481] dump_stack+0x1c/0x5c [ 227.147541][ T6481] sysfs_create_dir_ns+0x22c/0x24c [ 227.148265][ T6481] kobject_add_internal+0x590/0xc54 [ 227.148959][ T6481] kobject_init_and_add+0x118/0x17c [ 227.149714][ T6481] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.150395][ T6481] gfs2_fill_super+0xdac/0x19e0 [ 227.151068][ T6481] get_tree_bdev+0x358/0x544 [ 227.151706][ T6481] gfs2_get_tree+0x54/0x1b4 [ 227.152381][ T6481] vfs_get_tree+0x90/0x274 [ 227.153092][ T6481] do_new_mount+0x228/0x810 [ 227.153792][ T6481] path_mount+0x5b4/0x1000 [ 227.154470][ T6481] __arm64_sys_mount+0x514/0x5e4 [ 227.155229][ T6481] invoke_syscall+0x98/0x2b8 [ 227.155929][ T6481] el0_svc_common+0x138/0x258 [ 227.156716][ T6481] do_el0_svc+0x58/0x14c [ 227.157380][ T6481] el0_svc+0x78/0x1e0 [ 227.157986][ T6481] el0t_64_sync_handler+0xcc/0xe4 [ 227.158767][ T6481] el0t_64_sync+0x1a0/0x1a4 [ 227.161164][ T6481] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.163075][ T6481] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.292879][ T6483] loop1: detected capacity change from 0 to 32768 [ 227.300557][ T6483] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.301830][ T6483] CPU: 1 PID: 6483 Comm: syz.1.668 Not tainted syzkaller #0 [ 227.303007][ T6483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.304588][ T6483] Call trace: [ 227.305118][ T6483] dump_backtrace+0x0/0x43c [ 227.305906][ T6483] show_stack+0x2c/0x3c [ 227.306546][ T6483] __dump_stack+0x30/0x40 [ 227.307214][ T6483] dump_stack_lvl+0xf8/0x160 [ 227.307986][ T6483] dump_stack+0x1c/0x5c [ 227.308673][ T6483] sysfs_create_dir_ns+0x22c/0x24c [ 227.309534][ T6483] kobject_add_internal+0x590/0xc54 [ 227.310436][ T6483] kobject_init_and_add+0x118/0x17c [ 227.311319][ T6483] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.312083][ T6483] gfs2_fill_super+0xdac/0x19e0 [ 227.312870][ T6483] get_tree_bdev+0x358/0x544 [ 227.313545][ T6483] gfs2_get_tree+0x54/0x1b4 [ 227.314309][ T6483] vfs_get_tree+0x90/0x274 [ 227.315029][ T6483] do_new_mount+0x228/0x810 [ 227.315694][ T6483] path_mount+0x5b4/0x1000 [ 227.316446][ T6483] __arm64_sys_mount+0x514/0x5e4 [ 227.317231][ T6483] invoke_syscall+0x98/0x2b8 [ 227.317986][ T6483] el0_svc_common+0x138/0x258 [ 227.318697][ T6483] do_el0_svc+0x58/0x14c [ 227.319433][ T6483] el0_svc+0x78/0x1e0 [ 227.320115][ T6483] el0t_64_sync_handler+0xcc/0xe4 [ 227.320952][ T6483] el0t_64_sync+0x1a0/0x1a4 [ 227.323061][ T6483] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.325145][ T6483] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.452737][ T6485] loop1: detected capacity change from 0 to 32768 [ 227.504422][ T6485] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.505716][ T6485] CPU: 1 PID: 6485 Comm: syz.1.669 Not tainted syzkaller #0 [ 227.506867][ T6485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.508411][ T6485] Call trace: [ 227.508910][ T6485] dump_backtrace+0x0/0x43c [ 227.509722][ T6485] show_stack+0x2c/0x3c [ 227.510455][ T6485] __dump_stack+0x30/0x40 [ 227.511148][ T6485] dump_stack_lvl+0xf8/0x160 [ 227.511891][ T6485] dump_stack+0x1c/0x5c [ 227.512574][ T6485] sysfs_create_dir_ns+0x22c/0x24c [ 227.513392][ T6485] kobject_add_internal+0x590/0xc54 [ 227.514283][ T6485] kobject_init_and_add+0x118/0x17c [ 227.515179][ T6485] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.515994][ T6485] gfs2_fill_super+0xdac/0x19e0 [ 227.516750][ T6485] get_tree_bdev+0x358/0x544 [ 227.517517][ T6485] gfs2_get_tree+0x54/0x1b4 [ 227.518262][ T6485] vfs_get_tree+0x90/0x274 [ 227.519041][ T6485] do_new_mount+0x228/0x810 [ 227.519829][ T6485] path_mount+0x5b4/0x1000 [ 227.520540][ T6485] __arm64_sys_mount+0x514/0x5e4 [ 227.521294][ T6485] invoke_syscall+0x98/0x2b8 [ 227.522003][ T6485] el0_svc_common+0x138/0x258 [ 227.522699][ T6485] do_el0_svc+0x58/0x14c [ 227.523402][ T6485] el0_svc+0x78/0x1e0 [ 227.524053][ T6485] el0t_64_sync_handler+0xcc/0xe4 [ 227.524875][ T6485] el0t_64_sync+0x1a0/0x1a4 [ 227.527512][ T6485] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.529512][ T6485] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.665048][ T6487] loop1: detected capacity change from 0 to 32768 [ 227.709572][ T6487] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.710829][ T6487] CPU: 1 PID: 6487 Comm: syz.1.670 Not tainted syzkaller #0 [ 227.711941][ T6487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.713486][ T6487] Call trace: [ 227.713942][ T6487] dump_backtrace+0x0/0x43c [ 227.714598][ T6487] show_stack+0x2c/0x3c [ 227.715255][ T6487] __dump_stack+0x30/0x40 [ 227.715895][ T6487] dump_stack_lvl+0xf8/0x160 [ 227.716584][ T6487] dump_stack+0x1c/0x5c [ 227.717258][ T6487] sysfs_create_dir_ns+0x22c/0x24c [ 227.718054][ T6487] kobject_add_internal+0x590/0xc54 [ 227.718876][ T6487] kobject_init_and_add+0x118/0x17c [ 227.719657][ T6487] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.720389][ T6487] gfs2_fill_super+0xdac/0x19e0 [ 227.721143][ T6487] get_tree_bdev+0x358/0x544 [ 227.721965][ T6487] gfs2_get_tree+0x54/0x1b4 [ 227.722729][ T6487] vfs_get_tree+0x90/0x274 [ 227.723464][ T6487] do_new_mount+0x228/0x810 [ 227.724184][ T6487] path_mount+0x5b4/0x1000 [ 227.724835][ T6487] __arm64_sys_mount+0x514/0x5e4 [ 227.725581][ T6487] invoke_syscall+0x98/0x2b8 [ 227.726288][ T6487] el0_svc_common+0x138/0x258 [ 227.727015][ T6487] do_el0_svc+0x58/0x14c [ 227.727658][ T6487] el0_svc+0x78/0x1e0 [ 227.728280][ T6487] el0t_64_sync_handler+0xcc/0xe4 [ 227.729014][ T6487] el0t_64_sync+0x1a0/0x1a4 [ 227.730284][ T6487] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.732301][ T6487] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.869096][ T6489] loop1: detected capacity change from 0 to 32768 [ 227.876390][ T6489] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.877600][ T6489] CPU: 0 PID: 6489 Comm: syz.1.671 Not tainted syzkaller #0 [ 227.878790][ T6489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.880375][ T6489] Call trace: [ 227.880897][ T6489] dump_backtrace+0x0/0x43c [ 227.881597][ T6489] show_stack+0x2c/0x3c [ 227.882197][ T6489] __dump_stack+0x30/0x40 [ 227.882834][ T6489] dump_stack_lvl+0xf8/0x160 [ 227.883521][ T6489] dump_stack+0x1c/0x5c [ 227.884105][ T6489] sysfs_create_dir_ns+0x22c/0x24c [ 227.884850][ T6489] kobject_add_internal+0x590/0xc54 [ 227.885589][ T6489] kobject_init_and_add+0x118/0x17c [ 227.886385][ T6489] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.887083][ T6489] gfs2_fill_super+0xdac/0x19e0 [ 227.887888][ T6489] get_tree_bdev+0x358/0x544 [ 227.888579][ T6489] gfs2_get_tree+0x54/0x1b4 [ 227.889220][ T6489] vfs_get_tree+0x90/0x274 [ 227.889911][ T6489] do_new_mount+0x228/0x810 [ 227.890640][ T6489] path_mount+0x5b4/0x1000 [ 227.891362][ T6489] __arm64_sys_mount+0x514/0x5e4 [ 227.892022][ T6489] invoke_syscall+0x98/0x2b8 [ 227.892707][ T6489] el0_svc_common+0x138/0x258 [ 227.893450][ T6489] do_el0_svc+0x58/0x14c [ 227.894067][ T6489] el0_svc+0x78/0x1e0 [ 227.894675][ T6489] el0t_64_sync_handler+0xcc/0xe4 [ 227.895470][ T6489] el0t_64_sync+0x1a0/0x1a4 [ 227.897840][ T6489] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.900101][ T6489] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.032839][ T6491] loop1: detected capacity change from 0 to 32768 [ 228.040390][ T6491] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.041572][ T6491] CPU: 1 PID: 6491 Comm: syz.1.672 Not tainted syzkaller #0 [ 228.042686][ T6491] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 228.044168][ T6491] Call trace: [ 228.044598][ T6491] dump_backtrace+0x0/0x43c [ 228.045196][ T6491] show_stack+0x2c/0x3c [ 228.045854][ T6491] __dump_stack+0x30/0x40 [ 228.046563][ T6491] dump_stack_lvl+0xf8/0x160 [ 228.047256][ T6491] dump_stack+0x1c/0x5c [ 228.047891][ T6491] sysfs_create_dir_ns+0x22c/0x24c [ 228.048630][ T6491] kobject_add_internal+0x590/0xc54 [ 228.049504][ T6491] kobject_init_and_add+0x118/0x17c [ 228.050319][ T6491] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.051058][ T6491] gfs2_fill_super+0xdac/0x19e0 [ 228.051902][ T6491] get_tree_bdev+0x358/0x544 [ 228.052705][ T6491] gfs2_get_tree+0x54/0x1b4 [ 228.053493][ T6491] vfs_get_tree+0x90/0x274 [ 228.054219][ T6491] do_new_mount+0x228/0x810 [ 228.054921][ T6491] path_mount+0x5b4/0x1000 [ 228.055598][ T6491] __arm64_sys_mount+0x514/0x5e4 [ 228.056370][ T6491] invoke_syscall+0x98/0x2b8 [ 228.057117][ T6491] el0_svc_common+0x138/0x258 [ 228.057905][ T6491] do_el0_svc+0x58/0x14c [ 228.058601][ T6491] el0_svc+0x78/0x1e0 [ 228.059285][ T6491] el0t_64_sync_handler+0xcc/0xe4 [ 228.060118][ T6491] el0t_64_sync+0x1a0/0x1a4 [ 228.060992][ T6491] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.063051][ T6491] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.200759][ T6493] loop1: detected capacity change from 0 to 32768 [ 228.203753][ T6493] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.205006][ T6493] CPU: 1 PID: 6493 Comm: syz.1.673 Not tainted syzkaller #0 [ 228.206105][ T6493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 228.207461][ T6493] Call trace: [ 228.207965][ T6493] dump_backtrace+0x0/0x43c [ 228.208679][ T6493] show_stack+0x2c/0x3c [ 228.209382][ T6493] __dump_stack+0x30/0x40 [ 228.210057][ T6493] dump_stack_lvl+0xf8/0x160 [ 228.210830][ T6493] dump_stack+0x1c/0x5c [ 228.211508][ T6493] sysfs_create_dir_ns+0x22c/0x24c [ 228.212350][ T6493] kobject_add_internal+0x590/0xc54 [ 228.213217][ T6493] kobject_init_and_add+0x118/0x17c [ 228.214089][ T6493] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.214952][ T6493] gfs2_fill_super+0xdac/0x19e0 [ 228.215789][ T6493] get_tree_bdev+0x358/0x544 [ 228.216575][ T6493] gfs2_get_tree+0x54/0x1b4 [ 228.217307][ T6493] vfs_get_tree+0x90/0x274 [ 228.218040][ T6493] do_new_mount+0x228/0x810 [ 228.218768][ T6493] path_mount+0x5b4/0x1000 [ 228.219451][ T6493] __arm64_sys_mount+0x514/0x5e4 [ 228.220224][ T6493] invoke_syscall+0x98/0x2b8 [ 228.221046][ T6493] el0_svc_common+0x138/0x258 [ 228.221839][ T6493] do_el0_svc+0x58/0x14c [ 228.222545][ T6493] el0_svc+0x78/0x1e0 [ 228.223166][ T6493] el0t_64_sync_handler+0xcc/0xe4 [ 228.223971][ T6493] el0t_64_sync+0x1a0/0x1a4 [ 228.224971][ T6493] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.226987][ T6493] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.360234][ T6495] loop1: detected capacity change from 0 to 32768 [ 228.367306][ T6495] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.368636][ T6495] CPU: 0 PID: 6495 Comm: syz.1.674 Not tainted syzkaller #0 [ 228.369739][ T6495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 228.371351][ T6495] Call trace: [ 228.371866][ T6495] dump_backtrace+0x0/0x43c [ 228.372582][ T6495] show_stack+0x2c/0x3c [ 228.373219][ T6495] __dump_stack+0x30/0x40 [ 228.373865][ T6495] dump_stack_lvl+0xf8/0x160 [ 228.374583][ T6495] dump_stack+0x1c/0x5c [ 228.375280][ T6495] sysfs_create_dir_ns+0x22c/0x24c [ 228.376119][ T6495] kobject_add_internal+0x590/0xc54 [ 228.376952][ T6495] kobject_init_and_add+0x118/0x17c [ 228.377830][ T6495] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.378633][ T6495] gfs2_fill_super+0xdac/0x19e0 [ 228.379413][ T6495] get_tree_bdev+0x358/0x544 [ 228.380060][ T6495] gfs2_get_tree+0x54/0x1b4 [ 228.380669][ T6495] vfs_get_tree+0x90/0x274 [ 228.381308][ T6495] do_new_mount+0x228/0x810 [ 228.382007][ T6495] path_mount+0x5b4/0x1000 [ 228.382664][ T6495] __arm64_sys_mount+0x514/0x5e4 [ 228.383391][ T6495] invoke_syscall+0x98/0x2b8 [ 228.384060][ T6495] el0_svc_common+0x138/0x258 [ 228.384795][ T6495] do_el0_svc+0x58/0x14c [ 228.385466][ T6495] el0_svc+0x78/0x1e0 [ 228.386064][ T6495] el0t_64_sync_handler+0xcc/0xe4 [ 228.386799][ T6495] el0t_64_sync+0x1a0/0x1a4 [ 228.387824][ T6495] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.389920][ T6495] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.518672][ T6497] loop1: detected capacity change from 0 to 32768 [ 228.588249][ T6497] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.591465][ T6497] CPU: 1 PID: 6497 Comm: syz.1.675 Not tainted syzkaller #0 [ 228.592659][ T6497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 228.594203][ T6497] Call trace: [ 228.594743][ T6497] dump_backtrace+0x0/0x43c [ 228.595419][ T6497] show_stack+0x2c/0x3c [ 228.596025][ T6497] __dump_stack+0x30/0x40 [ 228.596700][ T6497] dump_stack_lvl+0xf8/0x160 [ 228.597410][ T6497] dump_stack+0x1c/0x5c [ 228.598116][ T6497] sysfs_create_dir_ns+0x22c/0x24c [ 228.598949][ T6497] kobject_add_internal+0x590/0xc54 [ 228.599744][ T6497] kobject_init_and_add+0x118/0x17c [ 228.600555][ T6497] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.601313][ T6497] gfs2_fill_super+0xdac/0x19e0 [ 228.602148][ T6497] get_tree_bdev+0x358/0x544 [ 228.602870][ T6497] gfs2_get_tree+0x54/0x1b4 [ 228.603570][ T6497] vfs_get_tree+0x90/0x274 [ 228.604296][ T6497] do_new_mount+0x228/0x810 [ 228.605054][ T6497] path_mount+0x5b4/0x1000 [ 228.605789][ T6497] __arm64_sys_mount+0x514/0x5e4 [ 228.606505][ T6497] invoke_syscall+0x98/0x2b8 [ 228.607316][ T6497] el0_svc_common+0x138/0x258 [ 228.608047][ T6497] do_el0_svc+0x58/0x14c [ 228.608707][ T6497] el0_svc+0x78/0x1e0 [ 228.609342][ T6497] el0t_64_sync_handler+0xcc/0xe4 [ 228.610128][ T6497] el0t_64_sync+0x1a0/0x1a4 [ 228.612421][ T6497] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.614423][ T6497] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.789969][ T6499] loop1: detected capacity change from 0 to 32768 [ 228.839543][ T6499] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.840772][ T6499] CPU: 1 PID: 6499 Comm: syz.1.676 Not tainted syzkaller #0 [ 228.841914][ T6499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 228.843430][ T6499] Call trace: [ 228.843920][ T6499] dump_backtrace+0x0/0x43c [ 228.844546][ T6499] show_stack+0x2c/0x3c [ 228.845135][ T6499] __dump_stack+0x30/0x40 [ 228.845890][ T6499] dump_stack_lvl+0xf8/0x160 [ 228.846612][ T6499] dump_stack+0x1c/0x5c [ 228.847288][ T6499] sysfs_create_dir_ns+0x22c/0x24c [ 228.848085][ T6499] kobject_add_internal+0x590/0xc54 [ 228.848838][ T6499] kobject_init_and_add+0x118/0x17c [ 228.849634][ T6499] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.850335][ T6499] gfs2_fill_super+0xdac/0x19e0 [ 228.851072][ T6499] get_tree_bdev+0x358/0x544 [ 228.851805][ T6499] gfs2_get_tree+0x54/0x1b4 [ 228.852535][ T6499] vfs_get_tree+0x90/0x274 [ 228.853234][ T6499] do_new_mount+0x228/0x810 [ 228.853968][ T6499] path_mount+0x5b4/0x1000 [ 228.854715][ T6499] __arm64_sys_mount+0x514/0x5e4 [ 228.855550][ T6499] invoke_syscall+0x98/0x2b8 [ 228.856297][ T6499] el0_svc_common+0x138/0x258 [ 228.857068][ T6499] do_el0_svc+0x58/0x14c [ 228.857775][ T6499] el0_svc+0x78/0x1e0 [ 228.858448][ T6499] el0t_64_sync_handler+0xcc/0xe4 [ 228.859287][ T6499] el0t_64_sync+0x1a0/0x1a4 [ 228.861438][ T6499] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.863686][ T6499] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.000578][ T6501] loop1: detected capacity change from 0 to 32768 [ 229.008112][ T6501] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.009630][ T6501] CPU: 0 PID: 6501 Comm: syz.1.677 Not tainted syzkaller #0 [ 229.010775][ T6501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.012413][ T6501] Call trace: [ 229.012903][ T6501] dump_backtrace+0x0/0x43c [ 229.013649][ T6501] show_stack+0x2c/0x3c [ 229.014317][ T6501] __dump_stack+0x30/0x40 [ 229.014970][ T6501] dump_stack_lvl+0xf8/0x160 [ 229.015649][ T6501] dump_stack+0x1c/0x5c [ 229.016332][ T6501] sysfs_create_dir_ns+0x22c/0x24c [ 229.017127][ T6501] kobject_add_internal+0x590/0xc54 [ 229.017937][ T6501] kobject_init_and_add+0x118/0x17c [ 229.018752][ T6501] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.019537][ T6501] gfs2_fill_super+0xdac/0x19e0 [ 229.020371][ T6501] get_tree_bdev+0x358/0x544 [ 229.021161][ T6501] gfs2_get_tree+0x54/0x1b4 [ 229.021943][ T6501] vfs_get_tree+0x90/0x274 [ 229.022665][ T6501] do_new_mount+0x228/0x810 [ 229.023415][ T6501] path_mount+0x5b4/0x1000 [ 229.024103][ T6501] __arm64_sys_mount+0x514/0x5e4 [ 229.024936][ T6501] invoke_syscall+0x98/0x2b8 [ 229.025704][ T6501] el0_svc_common+0x138/0x258 [ 229.026475][ T6501] do_el0_svc+0x58/0x14c [ 229.027173][ T6501] el0_svc+0x78/0x1e0 [ 229.027776][ T6501] el0t_64_sync_handler+0xcc/0xe4 [ 229.028543][ T6501] el0t_64_sync+0x1a0/0x1a4 [ 229.030643][ T6501] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.032601][ T6501] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.164224][ T6503] loop1: detected capacity change from 0 to 32768 [ 229.172898][ T6503] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.174191][ T6503] CPU: 0 PID: 6503 Comm: syz.1.678 Not tainted syzkaller #0 [ 229.175292][ T6503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.176947][ T6503] Call trace: [ 229.177455][ T6503] dump_backtrace+0x0/0x43c [ 229.178165][ T6503] show_stack+0x2c/0x3c [ 229.178875][ T6503] __dump_stack+0x30/0x40 [ 229.179636][ T6503] dump_stack_lvl+0xf8/0x160 [ 229.180348][ T6503] dump_stack+0x1c/0x5c [ 229.180979][ T6503] sysfs_create_dir_ns+0x22c/0x24c [ 229.181734][ T6503] kobject_add_internal+0x590/0xc54 [ 229.182470][ T6503] kobject_init_and_add+0x118/0x17c [ 229.183248][ T6503] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.183933][ T6503] gfs2_fill_super+0xdac/0x19e0 [ 229.184567][ T6503] get_tree_bdev+0x358/0x544 [ 229.185278][ T6503] gfs2_get_tree+0x54/0x1b4 [ 229.185929][ T6503] vfs_get_tree+0x90/0x274 [ 229.186548][ T6503] do_new_mount+0x228/0x810 [ 229.187219][ T6503] path_mount+0x5b4/0x1000 [ 229.187861][ T6503] __arm64_sys_mount+0x514/0x5e4 [ 229.188544][ T6503] invoke_syscall+0x98/0x2b8 [ 229.189189][ T6503] el0_svc_common+0x138/0x258 [ 229.189821][ T6503] do_el0_svc+0x58/0x14c [ 229.190406][ T6503] el0_svc+0x78/0x1e0 [ 229.190967][ T6503] el0t_64_sync_handler+0xcc/0xe4 [ 229.191752][ T6503] el0t_64_sync+0x1a0/0x1a4 [ 229.192782][ T6503] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.194897][ T6503] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.323080][ T6505] loop1: detected capacity change from 0 to 32768 [ 229.404082][ T6505] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.405342][ T6505] CPU: 0 PID: 6505 Comm: syz.1.679 Not tainted syzkaller #0 [ 229.406523][ T6505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.408086][ T6505] Call trace: [ 229.408611][ T6505] dump_backtrace+0x0/0x43c [ 229.409360][ T6505] show_stack+0x2c/0x3c [ 229.410042][ T6505] __dump_stack+0x30/0x40 [ 229.410752][ T6505] dump_stack_lvl+0xf8/0x160 [ 229.411430][ T6505] dump_stack+0x1c/0x5c [ 229.412065][ T6505] sysfs_create_dir_ns+0x22c/0x24c [ 229.412820][ T6505] kobject_add_internal+0x590/0xc54 [ 229.413592][ T6505] kobject_init_and_add+0x118/0x17c [ 229.414285][ T6505] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.414969][ T6505] gfs2_fill_super+0xdac/0x19e0 [ 229.415652][ T6505] get_tree_bdev+0x358/0x544 [ 229.416329][ T6505] gfs2_get_tree+0x54/0x1b4 [ 229.416993][ T6505] vfs_get_tree+0x90/0x274 [ 229.417647][ T6505] do_new_mount+0x228/0x810 [ 229.418310][ T6505] path_mount+0x5b4/0x1000 [ 229.418992][ T6505] __arm64_sys_mount+0x514/0x5e4 [ 229.419753][ T6505] invoke_syscall+0x98/0x2b8 [ 229.420519][ T6505] el0_svc_common+0x138/0x258 [ 229.421255][ T6505] do_el0_svc+0x58/0x14c [ 229.421866][ T6505] el0_svc+0x78/0x1e0 [ 229.422451][ T6505] el0t_64_sync_handler+0xcc/0xe4 [ 229.423173][ T6505] el0t_64_sync+0x1a0/0x1a4 [ 229.425754][ T6505] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.427694][ T6505] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.560312][ T6507] loop1: detected capacity change from 0 to 32768 [ 229.566213][ T6507] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.567504][ T6507] CPU: 1 PID: 6507 Comm: syz.1.680 Not tainted syzkaller #0 [ 229.568732][ T6507] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.570424][ T6507] Call trace: [ 229.570992][ T6507] dump_backtrace+0x0/0x43c [ 229.571705][ T6507] show_stack+0x2c/0x3c [ 229.572363][ T6507] __dump_stack+0x30/0x40 [ 229.573019][ T6507] dump_stack_lvl+0xf8/0x160 [ 229.573759][ T6507] dump_stack+0x1c/0x5c [ 229.574462][ T6507] sysfs_create_dir_ns+0x22c/0x24c [ 229.575351][ T6507] kobject_add_internal+0x590/0xc54 [ 229.576169][ T6507] kobject_init_and_add+0x118/0x17c [ 229.577021][ T6507] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.577873][ T6507] gfs2_fill_super+0xdac/0x19e0 [ 229.578725][ T6507] get_tree_bdev+0x358/0x544 [ 229.579464][ T6507] gfs2_get_tree+0x54/0x1b4 [ 229.580212][ T6507] vfs_get_tree+0x90/0x274 [ 229.581011][ T6507] do_new_mount+0x228/0x810 [ 229.581765][ T6507] path_mount+0x5b4/0x1000 [ 229.582497][ T6507] __arm64_sys_mount+0x514/0x5e4 [ 229.583269][ T6507] invoke_syscall+0x98/0x2b8 [ 229.584006][ T6507] el0_svc_common+0x138/0x258 [ 229.584720][ T6507] do_el0_svc+0x58/0x14c [ 229.585419][ T6507] el0_svc+0x78/0x1e0 [ 229.585993][ T6507] el0t_64_sync_handler+0xcc/0xe4 [ 229.586740][ T6507] el0t_64_sync+0x1a0/0x1a4 [ 229.588235][ T6507] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.590516][ T6507] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.718885][ T6509] loop1: detected capacity change from 0 to 32768 [ 229.769602][ T6509] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.770876][ T6509] CPU: 0 PID: 6509 Comm: syz.1.681 Not tainted syzkaller #0 [ 229.772050][ T6509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.773568][ T6509] Call trace: [ 229.774069][ T6509] dump_backtrace+0x0/0x43c [ 229.774758][ T6509] show_stack+0x2c/0x3c [ 229.775355][ T6509] __dump_stack+0x30/0x40 [ 229.775985][ T6509] dump_stack_lvl+0xf8/0x160 [ 229.776716][ T6509] dump_stack+0x1c/0x5c [ 229.777369][ T6509] sysfs_create_dir_ns+0x22c/0x24c [ 229.778151][ T6509] kobject_add_internal+0x590/0xc54 [ 229.779025][ T6509] kobject_init_and_add+0x118/0x17c [ 229.779797][ T6509] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.780558][ T6509] gfs2_fill_super+0xdac/0x19e0 [ 229.781354][ T6509] get_tree_bdev+0x358/0x544 [ 229.782047][ T6509] gfs2_get_tree+0x54/0x1b4 [ 229.782779][ T6509] vfs_get_tree+0x90/0x274 [ 229.783503][ T6509] do_new_mount+0x228/0x810 [ 229.784212][ T6509] path_mount+0x5b4/0x1000 [ 229.784899][ T6509] __arm64_sys_mount+0x514/0x5e4 [ 229.785734][ T6509] invoke_syscall+0x98/0x2b8 [ 229.786484][ T6509] el0_svc_common+0x138/0x258 [ 229.787246][ T6509] do_el0_svc+0x58/0x14c [ 229.787929][ T6509] el0_svc+0x78/0x1e0 [ 229.788521][ T6509] el0t_64_sync_handler+0xcc/0xe4 [ 229.789315][ T6509] el0t_64_sync+0x1a0/0x1a4 [ 229.790891][ T6509] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.792755][ T6509] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.925518][ T6511] loop1: detected capacity change from 0 to 32768 [ 229.933438][ T6511] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.934651][ T6511] CPU: 1 PID: 6511 Comm: syz.1.682 Not tainted syzkaller #0 [ 229.935767][ T6511] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.937236][ T6511] Call trace: [ 229.937722][ T6511] dump_backtrace+0x0/0x43c [ 229.938416][ T6511] show_stack+0x2c/0x3c [ 229.939152][ T6511] __dump_stack+0x30/0x40 [ 229.939876][ T6511] dump_stack_lvl+0xf8/0x160 [ 229.940606][ T6511] dump_stack+0x1c/0x5c [ 229.941275][ T6511] sysfs_create_dir_ns+0x22c/0x24c [ 229.942159][ T6511] kobject_add_internal+0x590/0xc54 [ 229.943014][ T6511] kobject_init_and_add+0x118/0x17c [ 229.943816][ T6511] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.944539][ T6511] gfs2_fill_super+0xdac/0x19e0 [ 229.945304][ T6511] get_tree_bdev+0x358/0x544 [ 229.945984][ T6511] gfs2_get_tree+0x54/0x1b4 [ 229.946723][ T6511] vfs_get_tree+0x90/0x274 [ 229.947416][ T6511] do_new_mount+0x228/0x810 [ 229.948118][ T6511] path_mount+0x5b4/0x1000 [ 229.948794][ T6511] __arm64_sys_mount+0x514/0x5e4 [ 229.949554][ T6511] invoke_syscall+0x98/0x2b8 [ 229.950286][ T6511] el0_svc_common+0x138/0x258 [ 229.951081][ T6511] do_el0_svc+0x58/0x14c [ 229.951811][ T6511] el0_svc+0x78/0x1e0 [ 229.952505][ T6511] el0t_64_sync_handler+0xcc/0xe4 [ 229.953356][ T6511] el0t_64_sync+0x1a0/0x1a4 [ 229.955497][ T6511] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.957412][ T6511] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.084165][ T6513] loop1: detected capacity change from 0 to 32768 [ 230.122935][ T6513] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.124227][ T6513] CPU: 1 PID: 6513 Comm: syz.1.683 Not tainted syzkaller #0 [ 230.125394][ T6513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 230.127078][ T6513] Call trace: [ 230.127624][ T6513] dump_backtrace+0x0/0x43c [ 230.128352][ T6513] show_stack+0x2c/0x3c [ 230.129082][ T6513] __dump_stack+0x30/0x40 [ 230.129828][ T6513] dump_stack_lvl+0xf8/0x160 [ 230.130609][ T6513] dump_stack+0x1c/0x5c [ 230.131317][ T6513] sysfs_create_dir_ns+0x22c/0x24c [ 230.132203][ T6513] kobject_add_internal+0x590/0xc54 [ 230.133078][ T6513] kobject_init_and_add+0x118/0x17c [ 230.133917][ T6513] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.134658][ T6513] gfs2_fill_super+0xdac/0x19e0 [ 230.135473][ T6513] get_tree_bdev+0x358/0x544 [ 230.136240][ T6513] gfs2_get_tree+0x54/0x1b4 [ 230.136950][ T6513] vfs_get_tree+0x90/0x274 [ 230.137636][ T6513] do_new_mount+0x228/0x810 [ 230.138317][ T6513] path_mount+0x5b4/0x1000 [ 230.139011][ T6513] __arm64_sys_mount+0x514/0x5e4 [ 230.139819][ T6513] invoke_syscall+0x98/0x2b8 [ 230.140615][ T6513] el0_svc_common+0x138/0x258 [ 230.141369][ T6513] do_el0_svc+0x58/0x14c [ 230.142008][ T6513] el0_svc+0x78/0x1e0 [ 230.142665][ T6513] el0t_64_sync_handler+0xcc/0xe4 [ 230.143444][ T6513] el0t_64_sync+0x1a0/0x1a4 [ 230.146203][ T6513] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.148388][ T6513] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.280214][ T6515] loop1: detected capacity change from 0 to 32768 [ 230.329613][ T6515] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.330873][ T6515] CPU: 0 PID: 6515 Comm: syz.1.684 Not tainted syzkaller #0 [ 230.331912][ T6515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 230.333372][ T6515] Call trace: [ 230.333898][ T6515] dump_backtrace+0x0/0x43c [ 230.334559][ T6515] show_stack+0x2c/0x3c [ 230.335216][ T6515] __dump_stack+0x30/0x40 [ 230.335899][ T6515] dump_stack_lvl+0xf8/0x160 [ 230.336592][ T6515] dump_stack+0x1c/0x5c [ 230.337237][ T6515] sysfs_create_dir_ns+0x22c/0x24c [ 230.337964][ T6515] kobject_add_internal+0x590/0xc54 [ 230.338706][ T6515] kobject_init_and_add+0x118/0x17c [ 230.339468][ T6515] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.340173][ T6515] gfs2_fill_super+0xdac/0x19e0 [ 230.340934][ T6515] get_tree_bdev+0x358/0x544 [ 230.341650][ T6515] gfs2_get_tree+0x54/0x1b4 [ 230.342380][ T6515] vfs_get_tree+0x90/0x274 [ 230.343094][ T6515] do_new_mount+0x228/0x810 [ 230.343775][ T6515] path_mount+0x5b4/0x1000 [ 230.344530][ T6515] __arm64_sys_mount+0x514/0x5e4 [ 230.345317][ T6515] invoke_syscall+0x98/0x2b8 [ 230.346023][ T6515] el0_svc_common+0x138/0x258 [ 230.346753][ T6515] do_el0_svc+0x58/0x14c [ 230.347381][ T6515] el0_svc+0x78/0x1e0 [ 230.347971][ T6515] el0t_64_sync_handler+0xcc/0xe4 [ 230.348666][ T6515] el0t_64_sync+0x1a0/0x1a4 [ 230.353493][ T6515] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.355482][ T6515] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.501732][ T6517] loop1: detected capacity change from 0 to 32768 [ 230.543452][ T6517] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.544690][ T6517] CPU: 0 PID: 6517 Comm: syz.1.685 Not tainted syzkaller #0 [ 230.545870][ T6517] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 230.547455][ T6517] Call trace: [ 230.547950][ T6517] dump_backtrace+0x0/0x43c [ 230.548638][ T6517] show_stack+0x2c/0x3c [ 230.549258][ T6517] __dump_stack+0x30/0x40 [ 230.550018][ T6517] dump_stack_lvl+0xf8/0x160 [ 230.550762][ T6517] dump_stack+0x1c/0x5c [ 230.551426][ T6517] sysfs_create_dir_ns+0x22c/0x24c [ 230.552158][ T6517] kobject_add_internal+0x590/0xc54 [ 230.552854][ T6517] kobject_init_and_add+0x118/0x17c [ 230.553588][ T6517] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.554258][ T6517] gfs2_fill_super+0xdac/0x19e0 [ 230.554979][ T6517] get_tree_bdev+0x358/0x544 [ 230.555727][ T6517] gfs2_get_tree+0x54/0x1b4 [ 230.556438][ T6517] vfs_get_tree+0x90/0x274 [ 230.557089][ T6517] do_new_mount+0x228/0x810 [ 230.557783][ T6517] path_mount+0x5b4/0x1000 [ 230.558520][ T6517] __arm64_sys_mount+0x514/0x5e4 [ 230.559294][ T6517] invoke_syscall+0x98/0x2b8 [ 230.559952][ T6517] el0_svc_common+0x138/0x258 [ 230.560709][ T6517] do_el0_svc+0x58/0x14c [ 230.561405][ T6517] el0_svc+0x78/0x1e0 [ 230.562048][ T6517] el0t_64_sync_handler+0xcc/0xe4 [ 230.562844][ T6517] el0t_64_sync+0x1a0/0x1a4 [ 230.564985][ T6517] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.566935][ T6517] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.699591][ T6519] loop1: detected capacity change from 0 to 32768 [ 230.749571][ T6519] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.750872][ T6519] CPU: 1 PID: 6519 Comm: syz.1.686 Not tainted syzkaller #0 [ 230.751999][ T6519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 230.753538][ T6519] Call trace: [ 230.754058][ T6519] dump_backtrace+0x0/0x43c [ 230.754772][ T6519] show_stack+0x2c/0x3c [ 230.755352][ T6519] __dump_stack+0x30/0x40 [ 230.755968][ T6519] dump_stack_lvl+0xf8/0x160 [ 230.756647][ T6519] dump_stack+0x1c/0x5c [ 230.757290][ T6519] sysfs_create_dir_ns+0x22c/0x24c [ 230.758074][ T6519] kobject_add_internal+0x590/0xc54 [ 230.758856][ T6519] kobject_init_and_add+0x118/0x17c [ 230.759660][ T6519] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.760452][ T6519] gfs2_fill_super+0xdac/0x19e0 [ 230.761284][ T6519] get_tree_bdev+0x358/0x544 [ 230.762050][ T6519] gfs2_get_tree+0x54/0x1b4 [ 230.762849][ T6519] vfs_get_tree+0x90/0x274 [ 230.763575][ T6519] do_new_mount+0x228/0x810 [ 230.764308][ T6519] path_mount+0x5b4/0x1000 [ 230.765060][ T6519] __arm64_sys_mount+0x514/0x5e4 [ 230.765907][ T6519] invoke_syscall+0x98/0x2b8 [ 230.766662][ T6519] el0_svc_common+0x138/0x258 [ 230.767428][ T6519] do_el0_svc+0x58/0x14c [ 230.768146][ T6519] el0_svc+0x78/0x1e0 [ 230.768791][ T6519] el0t_64_sync_handler+0xcc/0xe4 [ 230.769559][ T6519] el0t_64_sync+0x1a0/0x1a4 [ 230.770444][ T6519] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.772541][ T6519] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.905412][ T6521] loop1: detected capacity change from 0 to 32768 [ 230.993198][ T6521] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.994423][ T6521] CPU: 1 PID: 6521 Comm: syz.1.687 Not tainted syzkaller #0 [ 230.995524][ T6521] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 230.997130][ T6521] Call trace: [ 230.997631][ T6521] dump_backtrace+0x0/0x43c [ 230.998395][ T6521] show_stack+0x2c/0x3c [ 230.999145][ T6521] __dump_stack+0x30/0x40 [ 230.999859][ T6521] dump_stack_lvl+0xf8/0x160 [ 231.000634][ T6521] dump_stack+0x1c/0x5c [ 231.001308][ T6521] sysfs_create_dir_ns+0x22c/0x24c [ 231.002165][ T6521] kobject_add_internal+0x590/0xc54 [ 231.002997][ T6521] kobject_init_and_add+0x118/0x17c [ 231.003787][ T6521] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.004502][ T6521] gfs2_fill_super+0xdac/0x19e0 [ 231.005254][ T6521] get_tree_bdev+0x358/0x544 [ 231.005935][ T6521] gfs2_get_tree+0x54/0x1b4 [ 231.006589][ T6521] vfs_get_tree+0x90/0x274 [ 231.007255][ T6521] do_new_mount+0x228/0x810 [ 231.007908][ T6521] path_mount+0x5b4/0x1000 [ 231.008633][ T6521] __arm64_sys_mount+0x514/0x5e4 [ 231.009493][ T6521] invoke_syscall+0x98/0x2b8 [ 231.010270][ T6521] el0_svc_common+0x138/0x258 [ 231.011052][ T6521] do_el0_svc+0x58/0x14c [ 231.011733][ T6521] el0_svc+0x78/0x1e0 [ 231.012424][ T6521] el0t_64_sync_handler+0xcc/0xe4 [ 231.013221][ T6521] el0t_64_sync+0x1a0/0x1a4 [ 231.014753][ T6521] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.016730][ T6521] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.147860][ T6523] loop1: detected capacity change from 0 to 32768 [ 231.155691][ T6523] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.156812][ T6523] CPU: 0 PID: 6523 Comm: syz.1.688 Not tainted syzkaller #0 [ 231.157843][ T6523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.159278][ T6523] Call trace: [ 231.159734][ T6523] dump_backtrace+0x0/0x43c [ 231.160397][ T6523] show_stack+0x2c/0x3c [ 231.161012][ T6523] __dump_stack+0x30/0x40 [ 231.161659][ T6523] dump_stack_lvl+0xf8/0x160 [ 231.162364][ T6523] dump_stack+0x1c/0x5c [ 231.163026][ T6523] sysfs_create_dir_ns+0x22c/0x24c [ 231.163925][ T6523] kobject_add_internal+0x590/0xc54 [ 231.164745][ T6523] kobject_init_and_add+0x118/0x17c [ 231.165564][ T6523] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.166291][ T6523] gfs2_fill_super+0xdac/0x19e0 [ 231.167002][ T6523] get_tree_bdev+0x358/0x544 [ 231.167709][ T6523] gfs2_get_tree+0x54/0x1b4 [ 231.168436][ T6523] vfs_get_tree+0x90/0x274 [ 231.169178][ T6523] do_new_mount+0x228/0x810 [ 231.169845][ T6523] path_mount+0x5b4/0x1000 [ 231.170516][ T6523] __arm64_sys_mount+0x514/0x5e4 [ 231.171218][ T6523] invoke_syscall+0x98/0x2b8 [ 231.172006][ T6523] el0_svc_common+0x138/0x258 [ 231.172752][ T6523] do_el0_svc+0x58/0x14c [ 231.173358][ T6523] el0_svc+0x78/0x1e0 [ 231.173990][ T6523] el0t_64_sync_handler+0xcc/0xe4 [ 231.174903][ T6523] el0t_64_sync+0x1a0/0x1a4 [ 231.177158][ T6523] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.179165][ T6523] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.309508][ T6525] loop1: detected capacity change from 0 to 32768 [ 231.364376][ T6525] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.365561][ T6525] CPU: 0 PID: 6525 Comm: syz.1.689 Not tainted syzkaller #0 [ 231.366643][ T6525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.368177][ T6525] Call trace: [ 231.368721][ T6525] dump_backtrace+0x0/0x43c [ 231.369372][ T6525] show_stack+0x2c/0x3c [ 231.370035][ T6525] __dump_stack+0x30/0x40 [ 231.370690][ T6525] dump_stack_lvl+0xf8/0x160 [ 231.371407][ T6525] dump_stack+0x1c/0x5c [ 231.372040][ T6525] sysfs_create_dir_ns+0x22c/0x24c [ 231.372806][ T6525] kobject_add_internal+0x590/0xc54 [ 231.373628][ T6525] kobject_init_and_add+0x118/0x17c [ 231.374490][ T6525] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.375188][ T6525] gfs2_fill_super+0xdac/0x19e0 [ 231.375918][ T6525] get_tree_bdev+0x358/0x544 [ 231.376675][ T6525] gfs2_get_tree+0x54/0x1b4 [ 231.377412][ T6525] vfs_get_tree+0x90/0x274 [ 231.378159][ T6525] do_new_mount+0x228/0x810 [ 231.378946][ T6525] path_mount+0x5b4/0x1000 [ 231.379624][ T6525] __arm64_sys_mount+0x514/0x5e4 [ 231.380445][ T6525] invoke_syscall+0x98/0x2b8 [ 231.381216][ T6525] el0_svc_common+0x138/0x258 [ 231.381938][ T6525] do_el0_svc+0x58/0x14c [ 231.382634][ T6525] el0_svc+0x78/0x1e0 [ 231.383241][ T6525] el0t_64_sync_handler+0xcc/0xe4 [ 231.383996][ T6525] el0t_64_sync+0x1a0/0x1a4 [ 231.386045][ T6525] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.388019][ T6525] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.520892][ T6527] loop1: detected capacity change from 0 to 32768 [ 231.525633][ T6527] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.527030][ T6527] CPU: 1 PID: 6527 Comm: syz.1.690 Not tainted syzkaller #0 [ 231.528206][ T6527] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.529850][ T6527] Call trace: [ 231.530398][ T6527] dump_backtrace+0x0/0x43c [ 231.531158][ T6527] show_stack+0x2c/0x3c [ 231.531871][ T6527] __dump_stack+0x30/0x40 [ 231.532536][ T6527] dump_stack_lvl+0xf8/0x160 [ 231.533241][ T6527] dump_stack+0x1c/0x5c [ 231.533942][ T6527] sysfs_create_dir_ns+0x22c/0x24c [ 231.534784][ T6527] kobject_add_internal+0x590/0xc54 [ 231.535582][ T6527] kobject_init_and_add+0x118/0x17c [ 231.536399][ T6527] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.537131][ T6527] gfs2_fill_super+0xdac/0x19e0 [ 231.537923][ T6527] get_tree_bdev+0x358/0x544 [ 231.538669][ T6527] gfs2_get_tree+0x54/0x1b4 [ 231.539332][ T6527] vfs_get_tree+0x90/0x274 [ 231.540012][ T6527] do_new_mount+0x228/0x810 [ 231.540708][ T6527] path_mount+0x5b4/0x1000 [ 231.541415][ T6527] __arm64_sys_mount+0x514/0x5e4 [ 231.542196][ T6527] invoke_syscall+0x98/0x2b8 [ 231.542886][ T6527] el0_svc_common+0x138/0x258 [ 231.543676][ T6527] do_el0_svc+0x58/0x14c [ 231.544357][ T6527] el0_svc+0x78/0x1e0 [ 231.544941][ T6527] el0t_64_sync_handler+0xcc/0xe4 [ 231.545717][ T6527] el0t_64_sync+0x1a0/0x1a4 [ 231.547233][ T6527] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.549543][ T6527] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.676248][ T6529] loop1: detected capacity change from 0 to 32768 [ 231.709689][ T6529] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.711009][ T6529] CPU: 0 PID: 6529 Comm: syz.1.691 Not tainted syzkaller #0 [ 231.712108][ T6529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.713735][ T6529] Call trace: [ 231.714227][ T6529] dump_backtrace+0x0/0x43c [ 231.714888][ T6529] show_stack+0x2c/0x3c [ 231.715501][ T6529] __dump_stack+0x30/0x40 [ 231.716169][ T6529] dump_stack_lvl+0xf8/0x160 [ 231.716816][ T6529] dump_stack+0x1c/0x5c [ 231.717411][ T6529] sysfs_create_dir_ns+0x22c/0x24c [ 231.718128][ T6529] kobject_add_internal+0x590/0xc54 [ 231.718925][ T6529] kobject_init_and_add+0x118/0x17c [ 231.719719][ T6529] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.720461][ T6529] gfs2_fill_super+0xdac/0x19e0 [ 231.721247][ T6529] get_tree_bdev+0x358/0x544 [ 231.721912][ T6529] gfs2_get_tree+0x54/0x1b4 [ 231.722557][ T6529] vfs_get_tree+0x90/0x274 [ 231.723239][ T6529] do_new_mount+0x228/0x810 [ 231.723931][ T6529] path_mount+0x5b4/0x1000 [ 231.724598][ T6529] __arm64_sys_mount+0x514/0x5e4 [ 231.725376][ T6529] invoke_syscall+0x98/0x2b8 [ 231.726123][ T6529] el0_svc_common+0x138/0x258 [ 231.726832][ T6529] do_el0_svc+0x58/0x14c [ 231.727489][ T6529] el0_svc+0x78/0x1e0 [ 231.728062][ T6529] el0t_64_sync_handler+0xcc/0xe4 [ 231.728795][ T6529] el0t_64_sync+0x1a0/0x1a4 [ 231.730301][ T6529] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.732127][ T6529] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.863660][ T6531] loop1: detected capacity change from 0 to 32768 [ 231.870972][ T6531] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.872326][ T6531] CPU: 1 PID: 6531 Comm: syz.1.692 Not tainted syzkaller #0 [ 231.873533][ T6531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.875214][ T6531] Call trace: [ 231.875793][ T6531] dump_backtrace+0x0/0x43c [ 231.876497][ T6531] show_stack+0x2c/0x3c [ 231.877184][ T6531] __dump_stack+0x30/0x40 [ 231.877949][ T6531] dump_stack_lvl+0xf8/0x160 [ 231.878706][ T6531] dump_stack+0x1c/0x5c [ 231.879328][ T6531] sysfs_create_dir_ns+0x22c/0x24c [ 231.880109][ T6531] kobject_add_internal+0x590/0xc54 [ 231.880949][ T6531] kobject_init_and_add+0x118/0x17c [ 231.881828][ T6531] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.882647][ T6531] gfs2_fill_super+0xdac/0x19e0 [ 231.883491][ T6531] get_tree_bdev+0x358/0x544 [ 231.884305][ T6531] gfs2_get_tree+0x54/0x1b4 [ 231.885092][ T6531] vfs_get_tree+0x90/0x274 [ 231.885793][ T6531] do_new_mount+0x228/0x810 [ 231.886585][ T6531] path_mount+0x5b4/0x1000 [ 231.887308][ T6531] __arm64_sys_mount+0x514/0x5e4 [ 231.888110][ T6531] invoke_syscall+0x98/0x2b8 [ 231.888921][ T6531] el0_svc_common+0x138/0x258 [ 231.889715][ T6531] do_el0_svc+0x58/0x14c [ 231.890468][ T6531] el0_svc+0x78/0x1e0 [ 231.891098][ T6531] el0t_64_sync_handler+0xcc/0xe4 [ 231.891927][ T6531] el0t_64_sync+0x1a0/0x1a4 [ 231.893449][ T6531] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.895565][ T6531] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:51 executed programs: 679 [ 232.025455][ T6533] loop1: detected capacity change from 0 to 32768 [ 232.069715][ T6533] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.070843][ T6533] CPU: 0 PID: 6533 Comm: syz.1.693 Not tainted syzkaller #0 [ 232.071911][ T6533] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.073387][ T6533] Call trace: [ 232.073917][ T6533] dump_backtrace+0x0/0x43c [ 232.074640][ T6533] show_stack+0x2c/0x3c [ 232.075214][ T6533] __dump_stack+0x30/0x40 [ 232.075886][ T6533] dump_stack_lvl+0xf8/0x160 [ 232.076629][ T6533] dump_stack+0x1c/0x5c [ 232.077280][ T6533] sysfs_create_dir_ns+0x22c/0x24c [ 232.078109][ T6533] kobject_add_internal+0x590/0xc54 [ 232.078983][ T6533] kobject_init_and_add+0x118/0x17c [ 232.079893][ T6533] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.080665][ T6533] gfs2_fill_super+0xdac/0x19e0 [ 232.081457][ T6533] get_tree_bdev+0x358/0x544 [ 232.082171][ T6533] gfs2_get_tree+0x54/0x1b4 [ 232.082850][ T6533] vfs_get_tree+0x90/0x274 [ 232.083525][ T6533] do_new_mount+0x228/0x810 [ 232.084266][ T6533] path_mount+0x5b4/0x1000 [ 232.084949][ T6533] __arm64_sys_mount+0x514/0x5e4 [ 232.085712][ T6533] invoke_syscall+0x98/0x2b8 [ 232.086448][ T6533] el0_svc_common+0x138/0x258 [ 232.087174][ T6533] do_el0_svc+0x58/0x14c [ 232.087869][ T6533] el0_svc+0x78/0x1e0 [ 232.088477][ T6533] el0t_64_sync_handler+0xcc/0xe4 [ 232.089233][ T6533] el0t_64_sync+0x1a0/0x1a4 [ 232.091773][ T6533] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.093800][ T6533] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.224278][ T6535] loop1: detected capacity change from 0 to 32768 [ 232.232420][ T6535] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.233675][ T6535] CPU: 1 PID: 6535 Comm: syz.1.694 Not tainted syzkaller #0 [ 232.234899][ T6535] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.236516][ T6535] Call trace: [ 232.237002][ T6535] dump_backtrace+0x0/0x43c [ 232.237728][ T6535] show_stack+0x2c/0x3c [ 232.238388][ T6535] __dump_stack+0x30/0x40 [ 232.239057][ T6535] dump_stack_lvl+0xf8/0x160 [ 232.239816][ T6535] dump_stack+0x1c/0x5c [ 232.240547][ T6535] sysfs_create_dir_ns+0x22c/0x24c [ 232.241402][ T6535] kobject_add_internal+0x590/0xc54 [ 232.242273][ T6535] kobject_init_and_add+0x118/0x17c [ 232.243111][ T6535] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.243894][ T6535] gfs2_fill_super+0xdac/0x19e0 [ 232.244618][ T6535] get_tree_bdev+0x358/0x544 [ 232.245346][ T6535] gfs2_get_tree+0x54/0x1b4 [ 232.246103][ T6535] vfs_get_tree+0x90/0x274 [ 232.246808][ T6535] do_new_mount+0x228/0x810 [ 232.247521][ T6535] path_mount+0x5b4/0x1000 [ 232.248212][ T6535] __arm64_sys_mount+0x514/0x5e4 [ 232.248996][ T6535] invoke_syscall+0x98/0x2b8 [ 232.249748][ T6535] el0_svc_common+0x138/0x258 [ 232.250508][ T6535] do_el0_svc+0x58/0x14c [ 232.251223][ T6535] el0_svc+0x78/0x1e0 [ 232.251862][ T6535] el0t_64_sync_handler+0xcc/0xe4 [ 232.252641][ T6535] el0t_64_sync+0x1a0/0x1a4 [ 232.253513][ T6535] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.255546][ T6535] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.385047][ T6537] loop1: detected capacity change from 0 to 32768 [ 232.419564][ T6537] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.420793][ T6537] CPU: 1 PID: 6537 Comm: syz.1.695 Not tainted syzkaller #0 [ 232.422079][ T6537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.423704][ T6537] Call trace: [ 232.424224][ T6537] dump_backtrace+0x0/0x43c [ 232.424923][ T6537] show_stack+0x2c/0x3c [ 232.425559][ T6537] __dump_stack+0x30/0x40 [ 232.426240][ T6537] dump_stack_lvl+0xf8/0x160 [ 232.426921][ T6537] dump_stack+0x1c/0x5c [ 232.427544][ T6537] sysfs_create_dir_ns+0x22c/0x24c [ 232.428284][ T6537] kobject_add_internal+0x590/0xc54 [ 232.429060][ T6537] kobject_init_and_add+0x118/0x17c [ 232.429826][ T6537] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.430530][ T6537] gfs2_fill_super+0xdac/0x19e0 [ 232.431230][ T6537] get_tree_bdev+0x358/0x544 [ 232.432021][ T6537] gfs2_get_tree+0x54/0x1b4 [ 232.432833][ T6537] vfs_get_tree+0x90/0x274 [ 232.433613][ T6537] do_new_mount+0x228/0x810 [ 232.434416][ T6537] path_mount+0x5b4/0x1000 [ 232.435179][ T6537] __arm64_sys_mount+0x514/0x5e4 [ 232.436030][ T6537] invoke_syscall+0x98/0x2b8 [ 232.436757][ T6537] el0_svc_common+0x138/0x258 [ 232.437580][ T6537] do_el0_svc+0x58/0x14c [ 232.438254][ T6537] el0_svc+0x78/0x1e0 [ 232.438901][ T6537] el0t_64_sync_handler+0xcc/0xe4 [ 232.439770][ T6537] el0t_64_sync+0x1a0/0x1a4 [ 232.441213][ T6537] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.443373][ T6537] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.572775][ T6539] loop1: detected capacity change from 0 to 32768 [ 232.580186][ T6539] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.581432][ T6539] CPU: 0 PID: 6539 Comm: syz.1.696 Not tainted syzkaller #0 [ 232.582469][ T6539] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.583956][ T6539] Call trace: [ 232.584447][ T6539] dump_backtrace+0x0/0x43c [ 232.585114][ T6539] show_stack+0x2c/0x3c [ 232.585768][ T6539] __dump_stack+0x30/0x40 [ 232.586480][ T6539] dump_stack_lvl+0xf8/0x160 [ 232.587216][ T6539] dump_stack+0x1c/0x5c [ 232.587904][ T6539] sysfs_create_dir_ns+0x22c/0x24c [ 232.588667][ T6539] kobject_add_internal+0x590/0xc54 [ 232.589429][ T6539] kobject_init_and_add+0x118/0x17c [ 232.590239][ T6539] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.590977][ T6539] gfs2_fill_super+0xdac/0x19e0 [ 232.591690][ T6539] get_tree_bdev+0x358/0x544 [ 232.592383][ T6539] gfs2_get_tree+0x54/0x1b4 [ 232.593099][ T6539] vfs_get_tree+0x90/0x274 [ 232.593797][ T6539] do_new_mount+0x228/0x810 [ 232.594548][ T6539] path_mount+0x5b4/0x1000 [ 232.595290][ T6539] __arm64_sys_mount+0x514/0x5e4 [ 232.596099][ T6539] invoke_syscall+0x98/0x2b8 [ 232.596805][ T6539] el0_svc_common+0x138/0x258 [ 232.597495][ T6539] do_el0_svc+0x58/0x14c [ 232.598192][ T6539] el0_svc+0x78/0x1e0 [ 232.598811][ T6539] el0t_64_sync_handler+0xcc/0xe4 [ 232.599577][ T6539] el0t_64_sync+0x1a0/0x1a4 [ 232.600417][ T6539] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.602441][ T6539] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.728403][ T6541] loop1: detected capacity change from 0 to 32768 [ 232.779537][ T6541] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.780869][ T6541] CPU: 1 PID: 6541 Comm: syz.1.697 Not tainted syzkaller #0 [ 232.782058][ T6541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.783705][ T6541] Call trace: [ 232.784248][ T6541] dump_backtrace+0x0/0x43c [ 232.784993][ T6541] show_stack+0x2c/0x3c [ 232.785676][ T6541] __dump_stack+0x30/0x40 [ 232.786397][ T6541] dump_stack_lvl+0xf8/0x160 [ 232.787128][ T6541] dump_stack+0x1c/0x5c [ 232.787782][ T6541] sysfs_create_dir_ns+0x22c/0x24c [ 232.788536][ T6541] kobject_add_internal+0x590/0xc54 [ 232.789327][ T6541] kobject_init_and_add+0x118/0x17c [ 232.790111][ T6541] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.790818][ T6541] gfs2_fill_super+0xdac/0x19e0 [ 232.791636][ T6541] get_tree_bdev+0x358/0x544 [ 232.792413][ T6541] gfs2_get_tree+0x54/0x1b4 [ 232.793119][ T6541] vfs_get_tree+0x90/0x274 [ 232.793818][ T6541] do_new_mount+0x228/0x810 [ 232.794519][ T6541] path_mount+0x5b4/0x1000 [ 232.795174][ T6541] __arm64_sys_mount+0x514/0x5e4 [ 232.795970][ T6541] invoke_syscall+0x98/0x2b8 [ 232.796752][ T6541] el0_svc_common+0x138/0x258 [ 232.797509][ T6541] do_el0_svc+0x58/0x14c [ 232.798166][ T6541] el0_svc+0x78/0x1e0 [ 232.798836][ T6541] el0t_64_sync_handler+0xcc/0xe4 [ 232.799701][ T6541] el0t_64_sync+0x1a0/0x1a4 [ 232.801212][ T6541] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.803157][ T6541] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.934288][ T6543] loop1: detected capacity change from 0 to 32768 [ 232.941680][ T6543] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.942779][ T6543] CPU: 0 PID: 6543 Comm: syz.1.698 Not tainted syzkaller #0 [ 232.943941][ T6543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.945419][ T6543] Call trace: [ 232.945883][ T6543] dump_backtrace+0x0/0x43c [ 232.946516][ T6543] show_stack+0x2c/0x3c [ 232.947186][ T6543] __dump_stack+0x30/0x40 [ 232.947866][ T6543] dump_stack_lvl+0xf8/0x160 [ 232.948576][ T6543] dump_stack+0x1c/0x5c [ 232.949261][ T6543] sysfs_create_dir_ns+0x22c/0x24c [ 232.950107][ T6543] kobject_add_internal+0x590/0xc54 [ 232.950937][ T6543] kobject_init_and_add+0x118/0x17c [ 232.951743][ T6543] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.952516][ T6543] gfs2_fill_super+0xdac/0x19e0 [ 232.953319][ T6543] get_tree_bdev+0x358/0x544 [ 232.954062][ T6543] gfs2_get_tree+0x54/0x1b4 [ 232.954831][ T6543] vfs_get_tree+0x90/0x274 [ 232.955536][ T6543] do_new_mount+0x228/0x810 [ 232.956241][ T6543] path_mount+0x5b4/0x1000 [ 232.956919][ T6543] __arm64_sys_mount+0x514/0x5e4 [ 232.957678][ T6543] invoke_syscall+0x98/0x2b8 [ 232.958434][ T6543] el0_svc_common+0x138/0x258 [ 232.959176][ T6543] do_el0_svc+0x58/0x14c [ 232.959862][ T6543] el0_svc+0x78/0x1e0 [ 232.960446][ T6543] el0t_64_sync_handler+0xcc/0xe4 [ 232.961270][ T6543] el0t_64_sync+0x1a0/0x1a4 [ 232.962210][ T6543] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.964290][ T6543] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.098911][ T6545] loop1: detected capacity change from 0 to 32768 [ 233.148049][ T6545] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.151564][ T6545] CPU: 1 PID: 6545 Comm: syz.1.699 Not tainted syzkaller #0 [ 233.152629][ T6545] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.154147][ T6545] Call trace: [ 233.154650][ T6545] dump_backtrace+0x0/0x43c [ 233.155377][ T6545] show_stack+0x2c/0x3c [ 233.156028][ T6545] __dump_stack+0x30/0x40 [ 233.156738][ T6545] dump_stack_lvl+0xf8/0x160 [ 233.157516][ T6545] dump_stack+0x1c/0x5c [ 233.158172][ T6545] sysfs_create_dir_ns+0x22c/0x24c [ 233.159057][ T6545] kobject_add_internal+0x590/0xc54 [ 233.159921][ T6545] kobject_init_and_add+0x118/0x17c [ 233.160775][ T6545] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.161591][ T6545] gfs2_fill_super+0xdac/0x19e0 [ 233.162391][ T6545] get_tree_bdev+0x358/0x544 [ 233.163124][ T6545] gfs2_get_tree+0x54/0x1b4 [ 233.163833][ T6545] vfs_get_tree+0x90/0x274 [ 233.164542][ T6545] do_new_mount+0x228/0x810 [ 233.165246][ T6545] path_mount+0x5b4/0x1000 [ 233.166046][ T6545] __arm64_sys_mount+0x514/0x5e4 [ 233.166869][ T6545] invoke_syscall+0x98/0x2b8 [ 233.167610][ T6545] el0_svc_common+0x138/0x258 [ 233.168362][ T6545] do_el0_svc+0x58/0x14c [ 233.169046][ T6545] el0_svc+0x78/0x1e0 [ 233.169677][ T6545] el0t_64_sync_handler+0xcc/0xe4 [ 233.170501][ T6545] el0t_64_sync+0x1a0/0x1a4 [ 233.172238][ T6545] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.174365][ T6545] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.305113][ T6547] loop1: detected capacity change from 0 to 32768 [ 233.312822][ T6547] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.314249][ T6547] CPU: 0 PID: 6547 Comm: syz.1.700 Not tainted syzkaller #0 [ 233.315389][ T6547] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.316983][ T6547] Call trace: [ 233.317466][ T6547] dump_backtrace+0x0/0x43c [ 233.318174][ T6547] show_stack+0x2c/0x3c [ 233.318805][ T6547] __dump_stack+0x30/0x40 [ 233.319407][ T6547] dump_stack_lvl+0xf8/0x160 [ 233.320224][ T6547] dump_stack+0x1c/0x5c [ 233.320928][ T6547] sysfs_create_dir_ns+0x22c/0x24c [ 233.321750][ T6547] kobject_add_internal+0x590/0xc54 [ 233.322624][ T6547] kobject_init_and_add+0x118/0x17c [ 233.323498][ T6547] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.324335][ T6547] gfs2_fill_super+0xdac/0x19e0 [ 233.325123][ T6547] get_tree_bdev+0x358/0x544 [ 233.325856][ T6547] gfs2_get_tree+0x54/0x1b4 [ 233.326486][ T6547] vfs_get_tree+0x90/0x274 [ 233.327153][ T6547] do_new_mount+0x228/0x810 [ 233.327873][ T6547] path_mount+0x5b4/0x1000 [ 233.328605][ T6547] __arm64_sys_mount+0x514/0x5e4 [ 233.329410][ T6547] invoke_syscall+0x98/0x2b8 [ 233.330178][ T6547] el0_svc_common+0x138/0x258 [ 233.330925][ T6547] do_el0_svc+0x58/0x14c [ 233.331591][ T6547] el0_svc+0x78/0x1e0 [ 233.332177][ T6547] el0t_64_sync_handler+0xcc/0xe4 [ 233.332997][ T6547] el0t_64_sync+0x1a0/0x1a4 [ 233.333940][ T6547] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.335988][ T6547] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.461642][ T6549] loop1: detected capacity change from 0 to 32768 [ 233.543957][ T6549] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.545165][ T6549] CPU: 0 PID: 6549 Comm: syz.1.701 Not tainted syzkaller #0 [ 233.546335][ T6549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.547898][ T6549] Call trace: [ 233.548419][ T6549] dump_backtrace+0x0/0x43c [ 233.549147][ T6549] show_stack+0x2c/0x3c [ 233.549872][ T6549] __dump_stack+0x30/0x40 [ 233.550489][ T6549] dump_stack_lvl+0xf8/0x160 [ 233.551168][ T6549] dump_stack+0x1c/0x5c [ 233.551769][ T6549] sysfs_create_dir_ns+0x22c/0x24c [ 233.552541][ T6549] kobject_add_internal+0x590/0xc54 [ 233.553310][ T6549] kobject_init_and_add+0x118/0x17c [ 233.554143][ T6549] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.554885][ T6549] gfs2_fill_super+0xdac/0x19e0 [ 233.555661][ T6549] get_tree_bdev+0x358/0x544 [ 233.556352][ T6549] gfs2_get_tree+0x54/0x1b4 [ 233.557004][ T6549] vfs_get_tree+0x90/0x274 [ 233.557724][ T6549] do_new_mount+0x228/0x810 [ 233.558463][ T6549] path_mount+0x5b4/0x1000 [ 233.559167][ T6549] __arm64_sys_mount+0x514/0x5e4 [ 233.559934][ T6549] invoke_syscall+0x98/0x2b8 [ 233.560681][ T6549] el0_svc_common+0x138/0x258 [ 233.561412][ T6549] do_el0_svc+0x58/0x14c [ 233.562074][ T6549] el0_svc+0x78/0x1e0 [ 233.562703][ T6549] el0t_64_sync_handler+0xcc/0xe4 [ 233.563505][ T6549] el0t_64_sync+0x1a0/0x1a4 [ 233.565637][ T6549] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.567684][ T6549] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.699333][ T6551] loop1: detected capacity change from 0 to 32768 [ 233.749541][ T6551] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.750696][ T6551] CPU: 1 PID: 6551 Comm: syz.1.702 Not tainted syzkaller #0 [ 233.751850][ T6551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.753423][ T6551] Call trace: [ 233.753975][ T6551] dump_backtrace+0x0/0x43c [ 233.754740][ T6551] show_stack+0x2c/0x3c [ 233.755419][ T6551] __dump_stack+0x30/0x40 [ 233.756066][ T6551] dump_stack_lvl+0xf8/0x160 [ 233.756747][ T6551] dump_stack+0x1c/0x5c [ 233.757359][ T6551] sysfs_create_dir_ns+0x22c/0x24c [ 233.758130][ T6551] kobject_add_internal+0x590/0xc54 [ 233.758912][ T6551] kobject_init_and_add+0x118/0x17c [ 233.759742][ T6551] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.760505][ T6551] gfs2_fill_super+0xdac/0x19e0 [ 233.761260][ T6551] get_tree_bdev+0x358/0x544 [ 233.761964][ T6551] gfs2_get_tree+0x54/0x1b4 [ 233.762646][ T6551] vfs_get_tree+0x90/0x274 [ 233.763314][ T6551] do_new_mount+0x228/0x810 [ 233.764101][ T6551] path_mount+0x5b4/0x1000 [ 233.764756][ T6551] __arm64_sys_mount+0x514/0x5e4 [ 233.765522][ T6551] invoke_syscall+0x98/0x2b8 [ 233.766304][ T6551] el0_svc_common+0x138/0x258 [ 233.767105][ T6551] do_el0_svc+0x58/0x14c [ 233.767827][ T6551] el0_svc+0x78/0x1e0 [ 233.768497][ T6551] el0t_64_sync_handler+0xcc/0xe4 [ 233.769333][ T6551] el0t_64_sync+0x1a0/0x1a4 [ 233.770254][ T6551] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.772360][ T6551] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.898911][ T6553] loop1: detected capacity change from 0 to 32768 [ 233.906198][ T6553] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.907466][ T6553] CPU: 1 PID: 6553 Comm: syz.1.703 Not tainted syzkaller #0 [ 233.908663][ T6553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.910208][ T6553] Call trace: [ 233.910709][ T6553] dump_backtrace+0x0/0x43c [ 233.911455][ T6553] show_stack+0x2c/0x3c [ 233.912173][ T6553] __dump_stack+0x30/0x40 [ 233.912895][ T6553] dump_stack_lvl+0xf8/0x160 [ 233.913703][ T6553] dump_stack+0x1c/0x5c [ 233.914418][ T6553] sysfs_create_dir_ns+0x22c/0x24c [ 233.915223][ T6553] kobject_add_internal+0x590/0xc54 [ 233.916067][ T6553] kobject_init_and_add+0x118/0x17c [ 233.916882][ T6553] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.917646][ T6553] gfs2_fill_super+0xdac/0x19e0 [ 233.918347][ T6553] get_tree_bdev+0x358/0x544 [ 233.919036][ T6553] gfs2_get_tree+0x54/0x1b4 [ 233.919726][ T6553] vfs_get_tree+0x90/0x274 [ 233.920373][ T6553] do_new_mount+0x228/0x810 [ 233.921080][ T6553] path_mount+0x5b4/0x1000 [ 233.921799][ T6553] __arm64_sys_mount+0x514/0x5e4 [ 233.922659][ T6553] invoke_syscall+0x98/0x2b8 [ 233.923426][ T6553] el0_svc_common+0x138/0x258 [ 233.924268][ T6553] do_el0_svc+0x58/0x14c [ 233.924961][ T6553] el0_svc+0x78/0x1e0 [ 233.925669][ T6553] el0t_64_sync_handler+0xcc/0xe4 [ 233.926490][ T6553] el0t_64_sync+0x1a0/0x1a4 [ 233.928388][ T6553] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.930494][ T6553] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.069134][ T6555] loop1: detected capacity change from 0 to 32768 [ 234.109796][ T6555] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.111057][ T6555] CPU: 1 PID: 6555 Comm: syz.1.704 Not tainted syzkaller #0 [ 234.112220][ T6555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.113775][ T6555] Call trace: [ 234.114289][ T6555] dump_backtrace+0x0/0x43c [ 234.115021][ T6555] show_stack+0x2c/0x3c [ 234.115713][ T6555] __dump_stack+0x30/0x40 [ 234.116373][ T6555] dump_stack_lvl+0xf8/0x160 [ 234.117131][ T6555] dump_stack+0x1c/0x5c [ 234.117794][ T6555] sysfs_create_dir_ns+0x22c/0x24c [ 234.118612][ T6555] kobject_add_internal+0x590/0xc54 [ 234.119490][ T6555] kobject_init_and_add+0x118/0x17c [ 234.120365][ T6555] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.121190][ T6555] gfs2_fill_super+0xdac/0x19e0 [ 234.122034][ T6555] get_tree_bdev+0x358/0x544 [ 234.122844][ T6555] gfs2_get_tree+0x54/0x1b4 [ 234.123637][ T6555] vfs_get_tree+0x90/0x274 [ 234.124401][ T6555] do_new_mount+0x228/0x810 [ 234.125157][ T6555] path_mount+0x5b4/0x1000 [ 234.125885][ T6555] __arm64_sys_mount+0x514/0x5e4 [ 234.126734][ T6555] invoke_syscall+0x98/0x2b8 [ 234.127546][ T6555] el0_svc_common+0x138/0x258 [ 234.128299][ T6555] do_el0_svc+0x58/0x14c [ 234.128994][ T6555] el0_svc+0x78/0x1e0 [ 234.129655][ T6555] el0t_64_sync_handler+0xcc/0xe4 [ 234.130462][ T6555] el0t_64_sync+0x1a0/0x1a4 [ 234.132669][ T6555] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.134901][ T6555] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.261663][ T6557] loop1: detected capacity change from 0 to 32768 [ 234.313698][ T6557] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.314863][ T6557] CPU: 1 PID: 6557 Comm: syz.1.705 Not tainted syzkaller #0 [ 234.315952][ T6557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.317396][ T6557] Call trace: [ 234.317955][ T6557] dump_backtrace+0x0/0x43c [ 234.318686][ T6557] show_stack+0x2c/0x3c [ 234.319368][ T6557] __dump_stack+0x30/0x40 [ 234.320072][ T6557] dump_stack_lvl+0xf8/0x160 [ 234.320778][ T6557] dump_stack+0x1c/0x5c [ 234.321471][ T6557] sysfs_create_dir_ns+0x22c/0x24c [ 234.322390][ T6557] kobject_add_internal+0x590/0xc54 [ 234.323233][ T6557] kobject_init_and_add+0x118/0x17c [ 234.324028][ T6557] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.324748][ T6557] gfs2_fill_super+0xdac/0x19e0 [ 234.325502][ T6557] get_tree_bdev+0x358/0x544 [ 234.326276][ T6557] gfs2_get_tree+0x54/0x1b4 [ 234.326995][ T6557] vfs_get_tree+0x90/0x274 [ 234.327732][ T6557] do_new_mount+0x228/0x810 [ 234.328449][ T6557] path_mount+0x5b4/0x1000 [ 234.329138][ T6557] __arm64_sys_mount+0x514/0x5e4 [ 234.329943][ T6557] invoke_syscall+0x98/0x2b8 [ 234.330671][ T6557] el0_svc_common+0x138/0x258 [ 234.331409][ T6557] do_el0_svc+0x58/0x14c [ 234.332036][ T6557] el0_svc+0x78/0x1e0 [ 234.332683][ T6557] el0t_64_sync_handler+0xcc/0xe4 [ 234.333383][ T6557] el0t_64_sync+0x1a0/0x1a4 [ 234.335751][ T6557] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.337878][ T6557] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.467741][ T6559] loop1: detected capacity change from 0 to 32768 [ 234.474964][ T6559] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.476095][ T6559] CPU: 0 PID: 6559 Comm: syz.1.706 Not tainted syzkaller #0 [ 234.477221][ T6559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.478600][ T6559] Call trace: [ 234.479056][ T6559] dump_backtrace+0x0/0x43c [ 234.479762][ T6559] show_stack+0x2c/0x3c [ 234.480351][ T6559] __dump_stack+0x30/0x40 [ 234.480978][ T6559] dump_stack_lvl+0xf8/0x160 [ 234.481660][ T6559] dump_stack+0x1c/0x5c [ 234.482248][ T6559] sysfs_create_dir_ns+0x22c/0x24c [ 234.482952][ T6559] kobject_add_internal+0x590/0xc54 [ 234.483671][ T6559] kobject_init_and_add+0x118/0x17c [ 234.484438][ T6559] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.485109][ T6559] gfs2_fill_super+0xdac/0x19e0 [ 234.485790][ T6559] get_tree_bdev+0x358/0x544 [ 234.486431][ T6559] gfs2_get_tree+0x54/0x1b4 [ 234.487065][ T6559] vfs_get_tree+0x90/0x274 [ 234.487679][ T6559] do_new_mount+0x228/0x810 [ 234.488364][ T6559] path_mount+0x5b4/0x1000 [ 234.489064][ T6559] __arm64_sys_mount+0x514/0x5e4 [ 234.489832][ T6559] invoke_syscall+0x98/0x2b8 [ 234.490493][ T6559] el0_svc_common+0x138/0x258 [ 234.491171][ T6559] do_el0_svc+0x58/0x14c [ 234.491812][ T6559] el0_svc+0x78/0x1e0 [ 234.492408][ T6559] el0t_64_sync_handler+0xcc/0xe4 [ 234.493186][ T6559] el0t_64_sync+0x1a0/0x1a4 [ 234.494239][ T6559] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.496141][ T6559] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.628770][ T6561] loop1: detected capacity change from 0 to 32768 [ 234.635784][ T6561] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.637019][ T6561] CPU: 1 PID: 6561 Comm: syz.1.707 Not tainted syzkaller #0 [ 234.638120][ T6561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.639754][ T6561] Call trace: [ 234.640275][ T6561] dump_backtrace+0x0/0x43c [ 234.641071][ T6561] show_stack+0x2c/0x3c [ 234.641808][ T6561] __dump_stack+0x30/0x40 [ 234.642550][ T6561] dump_stack_lvl+0xf8/0x160 [ 234.643309][ T6561] dump_stack+0x1c/0x5c [ 234.643992][ T6561] sysfs_create_dir_ns+0x22c/0x24c [ 234.644875][ T6561] kobject_add_internal+0x590/0xc54 [ 234.645749][ T6561] kobject_init_and_add+0x118/0x17c [ 234.646617][ T6561] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.647393][ T6561] gfs2_fill_super+0xdac/0x19e0 [ 234.648162][ T6561] get_tree_bdev+0x358/0x544 [ 234.648888][ T6561] gfs2_get_tree+0x54/0x1b4 [ 234.649657][ T6561] vfs_get_tree+0x90/0x274 [ 234.650392][ T6561] do_new_mount+0x228/0x810 [ 234.651109][ T6561] path_mount+0x5b4/0x1000 [ 234.651813][ T6561] __arm64_sys_mount+0x514/0x5e4 [ 234.652598][ T6561] invoke_syscall+0x98/0x2b8 [ 234.653601][ T6561] el0_svc_common+0x138/0x258 [ 234.654389][ T6561] do_el0_svc+0x58/0x14c [ 234.655124][ T6561] el0_svc+0x78/0x1e0 [ 234.655788][ T6561] el0t_64_sync_handler+0xcc/0xe4 [ 234.656634][ T6561] el0t_64_sync+0x1a0/0x1a4 [ 234.657609][ T6561] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.660032][ T6561] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.790526][ T6563] loop1: detected capacity change from 0 to 32768 [ 234.829714][ T6563] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.830908][ T6563] CPU: 1 PID: 6563 Comm: syz.1.708 Not tainted syzkaller #0 [ 234.832058][ T6563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.833729][ T6563] Call trace: [ 234.834221][ T6563] dump_backtrace+0x0/0x43c [ 234.834947][ T6563] show_stack+0x2c/0x3c [ 234.835662][ T6563] __dump_stack+0x30/0x40 [ 234.836409][ T6563] dump_stack_lvl+0xf8/0x160 [ 234.837163][ T6563] dump_stack+0x1c/0x5c [ 234.837837][ T6563] sysfs_create_dir_ns+0x22c/0x24c [ 234.838698][ T6563] kobject_add_internal+0x590/0xc54 [ 234.839574][ T6563] kobject_init_and_add+0x118/0x17c [ 234.840388][ T6563] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.841195][ T6563] gfs2_fill_super+0xdac/0x19e0 [ 234.841943][ T6563] get_tree_bdev+0x358/0x544 [ 234.842706][ T6563] gfs2_get_tree+0x54/0x1b4 [ 234.843459][ T6563] vfs_get_tree+0x90/0x274 [ 234.844228][ T6563] do_new_mount+0x228/0x810 [ 234.844949][ T6563] path_mount+0x5b4/0x1000 [ 234.845642][ T6563] __arm64_sys_mount+0x514/0x5e4 [ 234.846516][ T6563] invoke_syscall+0x98/0x2b8 [ 234.847223][ T6563] el0_svc_common+0x138/0x258 [ 234.848012][ T6563] do_el0_svc+0x58/0x14c [ 234.848728][ T6563] el0_svc+0x78/0x1e0 [ 234.849434][ T6563] el0t_64_sync_handler+0xcc/0xe4 [ 234.850204][ T6563] el0t_64_sync+0x1a0/0x1a4 [ 234.851884][ T6563] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.854094][ T6563] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.982812][ T6565] loop1: detected capacity change from 0 to 32768 [ 235.033145][ T6565] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.034460][ T6565] CPU: 1 PID: 6565 Comm: syz.1.709 Not tainted syzkaller #0 [ 235.035585][ T6565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 235.037185][ T6565] Call trace: [ 235.037642][ T6565] dump_backtrace+0x0/0x43c [ 235.038325][ T6565] show_stack+0x2c/0x3c [ 235.038964][ T6565] __dump_stack+0x30/0x40 [ 235.039588][ T6565] dump_stack_lvl+0xf8/0x160 [ 235.040320][ T6565] dump_stack+0x1c/0x5c [ 235.040932][ T6565] sysfs_create_dir_ns+0x22c/0x24c [ 235.041691][ T6565] kobject_add_internal+0x590/0xc54 [ 235.042460][ T6565] kobject_init_and_add+0x118/0x17c [ 235.043284][ T6565] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.044026][ T6565] gfs2_fill_super+0xdac/0x19e0 [ 235.044791][ T6565] get_tree_bdev+0x358/0x544 [ 235.045515][ T6565] gfs2_get_tree+0x54/0x1b4 [ 235.046214][ T6565] vfs_get_tree+0x90/0x274 [ 235.046888][ T6565] do_new_mount+0x228/0x810 [ 235.047584][ T6565] path_mount+0x5b4/0x1000 [ 235.048241][ T6565] __arm64_sys_mount+0x514/0x5e4 [ 235.048983][ T6565] invoke_syscall+0x98/0x2b8 [ 235.049678][ T6565] el0_svc_common+0x138/0x258 [ 235.050399][ T6565] do_el0_svc+0x58/0x14c [ 235.051105][ T6565] el0_svc+0x78/0x1e0 [ 235.051748][ T6565] el0t_64_sync_handler+0xcc/0xe4 [ 235.052629][ T6565] el0t_64_sync+0x1a0/0x1a4 [ 235.054830][ T6565] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.056678][ T6565] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.190440][ T6567] loop1: detected capacity change from 0 to 32768 [ 235.229636][ T6567] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.230892][ T6567] CPU: 0 PID: 6567 Comm: syz.1.710 Not tainted syzkaller #0 [ 235.232043][ T6567] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 235.233576][ T6567] Call trace: [ 235.234081][ T6567] dump_backtrace+0x0/0x43c [ 235.234744][ T6567] show_stack+0x2c/0x3c [ 235.235369][ T6567] __dump_stack+0x30/0x40 [ 235.236102][ T6567] dump_stack_lvl+0xf8/0x160 [ 235.236886][ T6567] dump_stack+0x1c/0x5c [ 235.237593][ T6567] sysfs_create_dir_ns+0x22c/0x24c [ 235.238459][ T6567] kobject_add_internal+0x590/0xc54 [ 235.239294][ T6567] kobject_init_and_add+0x118/0x17c [ 235.240091][ T6567] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.240824][ T6567] gfs2_fill_super+0xdac/0x19e0 [ 235.241542][ T6567] get_tree_bdev+0x358/0x544 [ 235.242222][ T6567] gfs2_get_tree+0x54/0x1b4 [ 235.242889][ T6567] vfs_get_tree+0x90/0x274 [ 235.243544][ T6567] do_new_mount+0x228/0x810 [ 235.244215][ T6567] path_mount+0x5b4/0x1000 [ 235.244865][ T6567] __arm64_sys_mount+0x514/0x5e4 [ 235.245581][ T6567] invoke_syscall+0x98/0x2b8 [ 235.246263][ T6567] el0_svc_common+0x138/0x258 [ 235.246997][ T6567] do_el0_svc+0x58/0x14c [ 235.247660][ T6567] el0_svc+0x78/0x1e0 [ 235.248262][ T6567] el0t_64_sync_handler+0xcc/0xe4 [ 235.249035][ T6567] el0t_64_sync+0x1a0/0x1a4 [ 235.250314][ T6567] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.252255][ T6567] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.456556][ T6569] loop1: detected capacity change from 0 to 32768 [ 235.492453][ T6569] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.493602][ T6569] CPU: 0 PID: 6569 Comm: syz.1.711 Not tainted syzkaller #0 [ 235.494582][ T6569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 235.496189][ T6569] Call trace: [ 235.496685][ T6569] dump_backtrace+0x0/0x43c [ 235.497377][ T6569] show_stack+0x2c/0x3c [ 235.498058][ T6569] __dump_stack+0x30/0x40 [ 235.498788][ T6569] dump_stack_lvl+0xf8/0x160 [ 235.499548][ T6569] dump_stack+0x1c/0x5c [ 235.500224][ T6569] sysfs_create_dir_ns+0x22c/0x24c [ 235.501051][ T6569] kobject_add_internal+0x590/0xc54 [ 235.501844][ T6569] kobject_init_and_add+0x118/0x17c [ 235.502684][ T6569] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.503399][ T6569] gfs2_fill_super+0xdac/0x19e0 [ 235.504163][ T6569] get_tree_bdev+0x358/0x544 [ 235.504900][ T6569] gfs2_get_tree+0x54/0x1b4 [ 235.505600][ T6569] vfs_get_tree+0x90/0x274 [ 235.506239][ T6569] do_new_mount+0x228/0x810 [ 235.506889][ T6569] path_mount+0x5b4/0x1000 [ 235.507582][ T6569] __arm64_sys_mount+0x514/0x5e4 [ 235.508328][ T6569] invoke_syscall+0x98/0x2b8 [ 235.509066][ T6569] el0_svc_common+0x138/0x258 [ 235.509814][ T6569] do_el0_svc+0x58/0x14c [ 235.510504][ T6569] el0_svc+0x78/0x1e0 [ 235.511196][ T6569] el0t_64_sync_handler+0xcc/0xe4 [ 235.512041][ T6569] el0t_64_sync+0x1a0/0x1a4 [ 235.514230][ T6569] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.516296][ T6569] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.676771][ T6571] loop1: detected capacity change from 0 to 32768 [ 235.719704][ T6571] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.720978][ T6571] CPU: 1 PID: 6571 Comm: syz.1.712 Not tainted syzkaller #0 [ 235.722193][ T6571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 235.723837][ T6571] Call trace: [ 235.724374][ T6571] dump_backtrace+0x0/0x43c [ 235.725129][ T6571] show_stack+0x2c/0x3c [ 235.725772][ T6571] __dump_stack+0x30/0x40 [ 235.726493][ T6571] dump_stack_lvl+0xf8/0x160 [ 235.727166][ T6571] dump_stack+0x1c/0x5c [ 235.727864][ T6571] sysfs_create_dir_ns+0x22c/0x24c [ 235.728711][ T6571] kobject_add_internal+0x590/0xc54 [ 235.729535][ T6571] kobject_init_and_add+0x118/0x17c [ 235.730352][ T6571] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.731188][ T6571] gfs2_fill_super+0xdac/0x19e0 [ 235.731959][ T6571] get_tree_bdev+0x358/0x544 [ 235.732655][ T6571] gfs2_get_tree+0x54/0x1b4 [ 235.733310][ T6571] vfs_get_tree+0x90/0x274 [ 235.733991][ T6571] do_new_mount+0x228/0x810 [ 235.734694][ T6571] path_mount+0x5b4/0x1000 [ 235.735371][ T6571] __arm64_sys_mount+0x514/0x5e4 [ 235.736175][ T6571] invoke_syscall+0x98/0x2b8 [ 235.736904][ T6571] el0_svc_common+0x138/0x258 [ 235.737687][ T6571] do_el0_svc+0x58/0x14c [ 235.738412][ T6571] el0_svc+0x78/0x1e0 [ 235.739043][ T6571] el0t_64_sync_handler+0xcc/0xe4 [ 235.739839][ T6571] el0t_64_sync+0x1a0/0x1a4 [ 235.741295][ T6571] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.743685][ T6571] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.872522][ T6573] loop1: detected capacity change from 0 to 32768 [ 235.923422][ T6573] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.924598][ T6573] CPU: 1 PID: 6573 Comm: syz.1.713 Not tainted syzkaller #0 [ 235.925749][ T6573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 235.927352][ T6573] Call trace: [ 235.927869][ T6573] dump_backtrace+0x0/0x43c [ 235.928626][ T6573] show_stack+0x2c/0x3c [ 235.929333][ T6573] __dump_stack+0x30/0x40 [ 235.930017][ T6573] dump_stack_lvl+0xf8/0x160 [ 235.930772][ T6573] dump_stack+0x1c/0x5c [ 235.931491][ T6573] sysfs_create_dir_ns+0x22c/0x24c [ 235.932438][ T6573] kobject_add_internal+0x590/0xc54 [ 235.933275][ T6573] kobject_init_and_add+0x118/0x17c [ 235.934148][ T6573] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.935000][ T6573] gfs2_fill_super+0xdac/0x19e0 [ 235.935796][ T6573] get_tree_bdev+0x358/0x544 [ 235.936529][ T6573] gfs2_get_tree+0x54/0x1b4 [ 235.937271][ T6573] vfs_get_tree+0x90/0x274 [ 235.937988][ T6573] do_new_mount+0x228/0x810 [ 235.938676][ T6573] path_mount+0x5b4/0x1000 [ 235.939291][ T6573] __arm64_sys_mount+0x514/0x5e4 [ 235.940082][ T6573] invoke_syscall+0x98/0x2b8 [ 235.940836][ T6573] el0_svc_common+0x138/0x258 [ 235.941550][ T6573] do_el0_svc+0x58/0x14c [ 235.942260][ T6573] el0_svc+0x78/0x1e0 [ 235.942932][ T6573] el0t_64_sync_handler+0xcc/0xe4 [ 235.943668][ T6573] el0t_64_sync+0x1a0/0x1a4 [ 235.945846][ T6573] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.947765][ T6573] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.008431][ T27] INFO: task syz-executor:5001 blocked for more than 143 seconds. [ 236.011022][ T27] Not tainted syzkaller #0 [ 236.011729][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 236.013086][ T27] task:syz-executor state:D stack: 0 pid: 5001 ppid: 1 flags:0x00000001 [ 236.014588][ T27] Call trace: [ 236.015040][ T27] __switch_to+0x2f4/0x558 [ 236.015769][ T27] __schedule+0xe08/0x1bf8 [ 236.016442][ T27] schedule+0x11c/0x1c8 [ 236.017078][ T27] schedule_timeout+0x180/0x2c8 [ 236.017829][ T27] gfs2_gl_hash_clear+0x174/0x2cc [ 236.039583][ T27] gfs2_put_super+0x614/0x6bc [ 236.040344][ T27] generic_shutdown_super+0x130/0x2f0 [ 236.041181][ T27] kill_block_super+0x70/0xdc [ 236.042200][ T27] gfs2_kill_sb+0xc0/0xd4 [ 236.042918][ T27] deactivate_locked_super+0xb8/0x13c [ 236.044094][ T27] deactivate_super+0xf8/0x118 [ 236.044815][ T27] cleanup_mnt+0x3a4/0x458 [ 236.045787][ T27] __cleanup_mnt+0x20/0x30 [ 236.046514][ T27] task_work_run+0x12c/0x1e0 [ 236.047234][ T27] do_notify_resume+0x24b4/0x3128 [ 236.048018][ T27] el0_svc+0xf0/0x1e0 [ 236.049297][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 236.050093][ T27] el0t_64_sync+0x1a0/0x1a4 [ 236.051266][ T27] [ 236.051266][ T27] Showing all locks held in the system: [ 236.052504][ T27] 1 lock held by khungtaskd/27: [ 236.053203][ T27] #0: ffff8000143513a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 236.054852][ T27] 2 locks held by getty/3805: [ 236.055620][ T27] #0: ffff0000d37ce098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 236.057211][ T27] #1: ffff80001bb4b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 236.060797][ T27] 2 locks held by kworker/1:3/4064: [ 236.061806][ T27] #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 [ 236.063406][ T27] #1: ffff80001f417c00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 [ 236.065426][ T27] 1 lock held by syz-executor/5001: [ 236.066234][ T27] #0: ffff0000c1d000e0 (&type->s_umount_key#52){++++}-{3:3}, at: deactivate_super+0xf0/0x118 [ 236.067925][ T27] 3 locks held by syz.1.714/6575: [ 236.069261][ T27] [ 236.069702][ T27] ============================================= [ 236.069702][ T27] [ 236.071142][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 236.072271][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 236.073445][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 236.074998][ T27] Call trace: [ 236.075544][ T27] dump_backtrace+0x0/0x43c [ 236.076282][ T27] show_stack+0x2c/0x3c [ 236.076971][ T27] __dump_stack+0x30/0x40 [ 236.077666][ T27] dump_stack_lvl+0xf8/0x160 [ 236.078348][ T27] dump_stack+0x1c/0x5c [ 236.079024][ T27] panic+0x2e4/0x854 [ 236.079658][ T27] hung_task_panic+0x0/0x2c [ 236.080402][ T27] kthread+0x374/0x454 [ 236.081060][ T27] ret_from_fork+0x10/0x20 [ 236.081816][ T27] SMP: stopping secondary CPUs [ 236.082574][ T27] Kernel Offset: disabled [ 236.083286][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 236.084146][ T27] Memory Limit: none [ 236.414231][ T27] Rebooting in 86400 seconds..