x2c/0x3c [ 214.225106][ T6350] __dump_stack+0x30/0x40 [ 214.225734][ T6350] dump_stack_lvl+0xf8/0x160 [ 214.226369][ T6350] dump_stack+0x1c/0x5c [ 214.226968][ T6350] sysfs_create_dir_ns+0x22c/0x24c [ 214.227752][ T6350] kobject_add_internal+0x590/0xc54 [ 214.228642][ T6350] kobject_init_and_add+0x118/0x17c [ 214.229554][ T6350] gfs2_sys_fs_add+0x1dc/0x3d8 [ 214.230311][ T6350] gfs2_fill_super+0xdac/0x19e0 [ 214.231056][ T6350] get_tree_bdev+0x358/0x544 [ 214.231806][ T6350] gfs2_get_tree+0x54/0x1b4 [ 214.232530][ T6350] vfs_get_tree+0x90/0x274 [ 214.233255][ T6350] do_new_mount+0x228/0x810 [ 214.234023][ T6350] path_mount+0x5b4/0x1000 [ 214.234767][ T6350] __arm64_sys_mount+0x514/0x5e4 [ 214.235569][ T6350] invoke_syscall+0x98/0x2b8 [ 214.236298][ T6350] el0_svc_common+0x138/0x258 [ 214.237012][ T6350] do_el0_svc+0x58/0x14c [ 214.237750][ T6350] el0_svc+0x78/0x1e0 [ 214.238442][ T6350] el0t_64_sync_handler+0xcc/0xe4 [ 214.239227][ T6350] el0t_64_sync+0x1a0/0x1a4 [ 214.240254][ T6350] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.242258][ T6350] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.420637][ T6352] loop1: detected capacity change from 0 to 32768 [ 214.474172][ T6352] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.475325][ T6352] CPU: 0 PID: 6352 Comm: syz.1.614 Not tainted 5.15.189-syzkaller #0 [ 214.476672][ T6352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 214.478255][ T6352] Call trace: [ 214.478767][ T6352] dump_backtrace+0x0/0x43c [ 214.479482][ T6352] show_stack+0x2c/0x3c [ 214.480144][ T6352] __dump_stack+0x30/0x40 [ 214.480828][ T6352] dump_stack_lvl+0xf8/0x160 [ 214.481508][ T6352] dump_stack+0x1c/0x5c [ 214.482132][ T6352] sysfs_create_dir_ns+0x22c/0x24c [ 214.482879][ T6352] kobject_add_internal+0x590/0xc54 [ 214.483755][ T6352] kobject_init_and_add+0x118/0x17c [ 214.484543][ T6352] gfs2_sys_fs_add+0x1dc/0x3d8 [ 214.485314][ T6352] gfs2_fill_super+0xdac/0x19e0 [ 214.486130][ T6352] get_tree_bdev+0x358/0x544 [ 214.486841][ T6352] gfs2_get_tree+0x54/0x1b4 [ 214.487553][ T6352] vfs_get_tree+0x90/0x274 [ 214.488269][ T6352] do_new_mount+0x228/0x810 [ 214.489044][ T6352] path_mount+0x5b4/0x1000 [ 214.489721][ T6352] __arm64_sys_mount+0x514/0x5e4 [ 214.490443][ T6352] invoke_syscall+0x98/0x2b8 [ 214.491135][ T6352] el0_svc_common+0x138/0x258 [ 214.491883][ T6352] do_el0_svc+0x58/0x14c [ 214.492551][ T6352] el0_svc+0x78/0x1e0 [ 214.493159][ T6352] el0t_64_sync_handler+0xcc/0xe4 [ 214.493989][ T6352] el0t_64_sync+0x1a0/0x1a4 [ 214.496406][ T6352] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.498693][ T6352] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.628244][ T6354] loop1: detected capacity change from 0 to 32768 [ 214.635812][ T6354] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.637028][ T6354] CPU: 1 PID: 6354 Comm: syz.1.615 Not tainted 5.15.189-syzkaller #0 [ 214.638398][ T6354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 214.640149][ T6354] Call trace: [ 214.640683][ T6354] dump_backtrace+0x0/0x43c [ 214.641462][ T6354] show_stack+0x2c/0x3c [ 214.642179][ T6354] __dump_stack+0x30/0x40 [ 214.642932][ T6354] dump_stack_lvl+0xf8/0x160 [ 214.643738][ T6354] dump_stack+0x1c/0x5c [ 214.644388][ T6354] sysfs_create_dir_ns+0x22c/0x24c [ 214.645209][ T6354] kobject_add_internal+0x590/0xc54 [ 214.646086][ T6354] kobject_init_and_add+0x118/0x17c [ 214.646993][ T6354] gfs2_sys_fs_add+0x1dc/0x3d8 [ 214.647834][ T6354] gfs2_fill_super+0xdac/0x19e0 [ 214.648681][ T6354] get_tree_bdev+0x358/0x544 [ 214.649487][ T6354] gfs2_get_tree+0x54/0x1b4 [ 214.650240][ T6354] vfs_get_tree+0x90/0x274 [ 214.650992][ T6354] do_new_mount+0x228/0x810 [ 214.651728][ T6354] path_mount+0x5b4/0x1000 [ 214.652486][ T6354] __arm64_sys_mount+0x514/0x5e4 [ 214.653345][ T6354] invoke_syscall+0x98/0x2b8 [ 214.654147][ T6354] el0_svc_common+0x138/0x258 [ 214.654907][ T6354] do_el0_svc+0x58/0x14c [ 214.655582][ T6354] el0_svc+0x78/0x1e0 [ 214.656206][ T6354] el0t_64_sync_handler+0xcc/0xe4 [ 214.657061][ T6354] el0t_64_sync+0x1a0/0x1a4 [ 214.658140][ T6354] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.660187][ T6354] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.791246][ T6356] loop1: detected capacity change from 0 to 32768 [ 214.798577][ T6356] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.799732][ T6356] CPU: 1 PID: 6356 Comm: syz.1.616 Not tainted 5.15.189-syzkaller #0 [ 214.800871][ T6356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 214.802226][ T6356] Call trace: [ 214.802662][ T6356] dump_backtrace+0x0/0x43c [ 214.803288][ T6356] show_stack+0x2c/0x3c [ 214.803851][ T6356] __dump_stack+0x30/0x40 [ 214.804567][ T6356] dump_stack_lvl+0xf8/0x160 [ 214.805315][ T6356] dump_stack+0x1c/0x5c [ 214.805978][ T6356] sysfs_create_dir_ns+0x22c/0x24c [ 214.806730][ T6356] kobject_add_internal+0x590/0xc54 [ 214.807503][ T6356] kobject_init_and_add+0x118/0x17c [ 214.808264][ T6356] gfs2_sys_fs_add+0x1dc/0x3d8 [ 214.809037][ T6356] gfs2_fill_super+0xdac/0x19e0 [ 214.809868][ T6356] get_tree_bdev+0x358/0x544 [ 214.810666][ T6356] gfs2_get_tree+0x54/0x1b4 [ 214.811440][ T6356] vfs_get_tree+0x90/0x274 [ 214.812214][ T6356] do_new_mount+0x228/0x810 [ 214.812970][ T6356] path_mount+0x5b4/0x1000 [ 214.813746][ T6356] __arm64_sys_mount+0x514/0x5e4 [ 214.814612][ T6356] invoke_syscall+0x98/0x2b8 [ 214.815385][ T6356] el0_svc_common+0x138/0x258 [ 214.816172][ T6356] do_el0_svc+0x58/0x14c [ 214.816864][ T6356] el0_svc+0x78/0x1e0 [ 214.817511][ T6356] el0t_64_sync_handler+0xcc/0xe4 [ 214.818315][ T6356] el0t_64_sync+0x1a0/0x1a4 [ 214.819233][ T6356] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.821340][ T6356] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.885431][ T6358] chnl_net:caif_netlink_parms(): no params data found [ 214.906380][ T6358] bridge0: port 1(bridge_slave_0) entered blocking state [ 214.907603][ T6358] bridge0: port 1(bridge_slave_0) entered disabled state [ 214.909204][ T6358] device bridge_slave_0 entered promiscuous mode [ 214.911124][ T6358] bridge0: port 2(bridge_slave_1) entered blocking state [ 214.912238][ T6358] bridge0: port 2(bridge_slave_1) entered disabled state [ 214.913743][ T6358] device bridge_slave_1 entered promiscuous mode [ 214.921598][ T6358] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 214.923837][ T6358] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 214.931291][ T6358] team0: Port device team_slave_0 added [ 214.933023][ T6358] team0: Port device team_slave_1 added [ 214.939533][ T6358] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 214.940658][ T6358] 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. [ 214.944934][ T6358] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 214.947242][ T6358] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 214.948608][ T6358] 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. [ 214.952619][ T6358] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 214.999496][ T6358] device hsr_slave_0 entered promiscuous mode [ 215.048551][ T6358] device hsr_slave_1 entered promiscuous mode [ 215.118344][ T6358] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 215.119654][ T6358] Cannot create hsr debugfs directory [ 215.149065][ T6358] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 215.452548][ T6358] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 215.495769][ T6358] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 215.531802][ T6358] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 215.690726][ T6358] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 215.745066][ T6358] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 215.789616][ T6358] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 215.829504][ T6358] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 215.879123][ T6358] bridge0: port 2(bridge_slave_1) entered blocking state [ 215.880215][ T6358] bridge0: port 2(bridge_slave_1) entered forwarding state [ 215.881327][ T6358] bridge0: port 1(bridge_slave_0) entered blocking state [ 215.882417][ T6358] bridge0: port 1(bridge_slave_0) entered forwarding state [ 215.900030][ T6358] 8021q: adding VLAN 0 to HW filter on device bond0 [ 215.903740][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 215.905648][ T356] bridge0: port 1(bridge_slave_0) entered disabled state [ 215.907059][ T356] bridge0: port 2(bridge_slave_1) entered disabled state [ 215.910774][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 215.915546][ T6358] 8021q: adding VLAN 0 to HW filter on device team0 [ 215.917818][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 215.919835][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 215.921239][ T356] bridge0: port 1(bridge_slave_0) entered blocking state [ 215.922295][ T356] bridge0: port 1(bridge_slave_0) entered forwarding state [ 215.927972][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 215.932775][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 215.934136][ T356] bridge0: port 2(bridge_slave_1) entered blocking state [ 215.935251][ T356] bridge0: port 2(bridge_slave_1) entered forwarding state [ 215.937849][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 215.941874][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 215.944476][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 215.946174][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 215.947724][ T356] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 215.953959][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 215.955585][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 215.958123][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 215.961326][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 215.964011][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 215.965500][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 215.967691][ T6358] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 216.007141][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 216.008456][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 216.012641][ T6358] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 216.021343][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 216.022942][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 216.025709][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 216.027090][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 216.028778][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 216.030224][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 216.032554][ T6358] device veth0_vlan entered promiscuous mode [ 216.035879][ T6358] device veth1_vlan entered promiscuous mode [ 216.043717][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 216.045271][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 216.046717][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 216.048672][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 216.052056][ T6358] device veth0_macvtap entered promiscuous mode [ 216.054389][ T6358] device veth1_macvtap entered promiscuous mode [ 216.059537][ T6358] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 216.060962][ T6358] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 216.062471][ T6358] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 216.064012][ T6358] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 216.066067][ T6358] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 216.067317][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 216.069632][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 216.071053][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 216.072559][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 216.077974][ T6358] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 216.079768][ T6358] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 216.081263][ T6358] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 216.082944][ T6358] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 216.084846][ T6358] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 216.086583][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 216.088185][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 216.090788][ T6358] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 216.092177][ T6358] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 216.093508][ T6358] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 216.094823][ T6358] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 216.115646][ T1644] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 216.116882][ T1644] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 216.121030][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 216.124769][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 216.125914][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 216.127272][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 216.264653][ T6376] loop1: detected capacity change from 0 to 32768 [ 216.325524][ T6376] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.326700][ T6376] CPU: 1 PID: 6376 Comm: syz.1.617 Not tainted 5.15.189-syzkaller #0 [ 216.327982][ T6376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 216.329507][ T6376] Call trace: [ 216.329999][ T6376] dump_backtrace+0x0/0x43c [ 216.330678][ T6376] show_stack+0x2c/0x3c [ 216.331302][ T6376] __dump_stack+0x30/0x40 [ 216.332024][ T6376] dump_stack_lvl+0xf8/0x160 [ 216.332745][ T6376] dump_stack+0x1c/0x5c [ 216.333407][ T6376] sysfs_create_dir_ns+0x22c/0x24c [ 216.334218][ T6376] kobject_add_internal+0x590/0xc54 [ 216.335011][ T6376] kobject_init_and_add+0x118/0x17c [ 216.335813][ T6376] gfs2_sys_fs_add+0x1dc/0x3d8 [ 216.336541][ T6376] gfs2_fill_super+0xdac/0x19e0 [ 216.337337][ T6376] get_tree_bdev+0x358/0x544 [ 216.338073][ T6376] gfs2_get_tree+0x54/0x1b4 [ 216.338726][ T6376] vfs_get_tree+0x90/0x274 [ 216.339357][ T6376] do_new_mount+0x228/0x810 [ 216.340021][ T6376] path_mount+0x5b4/0x1000 [ 216.340744][ T6376] __arm64_sys_mount+0x514/0x5e4 [ 216.341563][ T6376] invoke_syscall+0x98/0x2b8 [ 216.342324][ T6376] el0_svc_common+0x138/0x258 [ 216.343058][ T6376] do_el0_svc+0x58/0x14c [ 216.343700][ T6376] el0_svc+0x78/0x1e0 [ 216.344319][ T6376] el0t_64_sync_handler+0xcc/0xe4 [ 216.345147][ T6376] el0t_64_sync+0x1a0/0x1a4 [ 216.347602][ T6376] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.349915][ T6376] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:36 executed programs: 604 [ 216.480809][ T6378] loop1: detected capacity change from 0 to 32768 [ 216.523715][ T6378] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.524832][ T6378] CPU: 1 PID: 6378 Comm: syz.1.618 Not tainted 5.15.189-syzkaller #0 [ 216.526183][ T6378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 216.527771][ T6378] Call trace: [ 216.528254][ T6378] dump_backtrace+0x0/0x43c [ 216.528959][ T6378] show_stack+0x2c/0x3c [ 216.529603][ T6378] __dump_stack+0x30/0x40 [ 216.530327][ T6378] dump_stack_lvl+0xf8/0x160 [ 216.531046][ T6378] dump_stack+0x1c/0x5c [ 216.531670][ T6378] sysfs_create_dir_ns+0x22c/0x24c [ 216.532411][ T6378] kobject_add_internal+0x590/0xc54 [ 216.533190][ T6378] kobject_init_and_add+0x118/0x17c [ 216.534041][ T6378] gfs2_sys_fs_add+0x1dc/0x3d8 [ 216.534766][ T6378] gfs2_fill_super+0xdac/0x19e0 [ 216.535504][ T6378] get_tree_bdev+0x358/0x544 [ 216.536212][ T6378] gfs2_get_tree+0x54/0x1b4 [ 216.536949][ T6378] vfs_get_tree+0x90/0x274 [ 216.537679][ T6378] do_new_mount+0x228/0x810 [ 216.538386][ T6378] path_mount+0x5b4/0x1000 [ 216.539148][ T6378] __arm64_sys_mount+0x514/0x5e4 [ 216.539909][ T6378] invoke_syscall+0x98/0x2b8 [ 216.540632][ T6378] el0_svc_common+0x138/0x258 [ 216.541417][ T6378] do_el0_svc+0x58/0x14c [ 216.542138][ T6378] el0_svc+0x78/0x1e0 [ 216.542782][ T6378] el0t_64_sync_handler+0xcc/0xe4 [ 216.543656][ T6378] el0t_64_sync+0x1a0/0x1a4 [ 216.546007][ T6378] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.548080][ T6378] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.686322][ T6380] loop1: detected capacity change from 0 to 32768 [ 216.743679][ T6380] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.744879][ T6380] CPU: 1 PID: 6380 Comm: syz.1.619 Not tainted 5.15.189-syzkaller #0 [ 216.746038][ T6380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 216.747753][ T6380] Call trace: [ 216.748276][ T6380] dump_backtrace+0x0/0x43c [ 216.749019][ T6380] show_stack+0x2c/0x3c [ 216.749675][ T6380] __dump_stack+0x30/0x40 [ 216.750410][ T6380] dump_stack_lvl+0xf8/0x160 [ 216.751141][ T6380] dump_stack+0x1c/0x5c [ 216.751800][ T6380] sysfs_create_dir_ns+0x22c/0x24c [ 216.752616][ T6380] kobject_add_internal+0x590/0xc54 [ 216.753461][ T6380] kobject_init_and_add+0x118/0x17c [ 216.754283][ T6380] gfs2_sys_fs_add+0x1dc/0x3d8 [ 216.755014][ T6380] gfs2_fill_super+0xdac/0x19e0 [ 216.755803][ T6380] get_tree_bdev+0x358/0x544 [ 216.756499][ T6380] gfs2_get_tree+0x54/0x1b4 [ 216.757125][ T6380] vfs_get_tree+0x90/0x274 [ 216.757756][ T6380] do_new_mount+0x228/0x810 [ 216.758437][ T6380] path_mount+0x5b4/0x1000 [ 216.759103][ T6380] __arm64_sys_mount+0x514/0x5e4 [ 216.759822][ T6380] invoke_syscall+0x98/0x2b8 [ 216.760495][ T6380] el0_svc_common+0x138/0x258 [ 216.761191][ T6380] do_el0_svc+0x58/0x14c [ 216.761810][ T6380] el0_svc+0x78/0x1e0 [ 216.762455][ T6380] el0t_64_sync_handler+0xcc/0xe4 [ 216.763249][ T6380] el0t_64_sync+0x1a0/0x1a4 [ 216.765348][ T6380] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.767349][ T6380] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.863523][ T136] device hsr_slave_0 left promiscuous mode [ 216.888594][ T1541] Bluetooth: hci2: command 0x0409 tx timeout [ 216.898856][ T136] device hsr_slave_1 left promiscuous mode [ 216.910399][ T6382] loop1: detected capacity change from 0 to 32768 [ 216.978369][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 216.979583][ T136] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 216.981087][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 216.982124][ T136] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 216.983393][ T136] device bridge_slave_1 left promiscuous mode [ 216.984340][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 217.003676][ T6382] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.004967][ T6382] CPU: 1 PID: 6382 Comm: syz.1.620 Not tainted 5.15.189-syzkaller #0 [ 217.006242][ T6382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 217.007742][ T6382] Call trace: [ 217.008290][ T6382] dump_backtrace+0x0/0x43c [ 217.009047][ T6382] show_stack+0x2c/0x3c [ 217.009694][ T6382] __dump_stack+0x30/0x40 [ 217.010420][ T6382] dump_stack_lvl+0xf8/0x160 [ 217.011174][ T6382] dump_stack+0x1c/0x5c [ 217.011862][ T6382] sysfs_create_dir_ns+0x22c/0x24c [ 217.012676][ T6382] kobject_add_internal+0x590/0xc54 [ 217.013505][ T6382] kobject_init_and_add+0x118/0x17c [ 217.014345][ T6382] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.015144][ T6382] gfs2_fill_super+0xdac/0x19e0 [ 217.015862][ T6382] get_tree_bdev+0x358/0x544 [ 217.016601][ T6382] gfs2_get_tree+0x54/0x1b4 [ 217.017307][ T6382] vfs_get_tree+0x90/0x274 [ 217.017990][ T6382] do_new_mount+0x228/0x810 [ 217.018709][ T6382] path_mount+0x5b4/0x1000 [ 217.019377][ T6382] __arm64_sys_mount+0x514/0x5e4 [ 217.020133][ T6382] invoke_syscall+0x98/0x2b8 [ 217.020888][ T6382] el0_svc_common+0x138/0x258 [ 217.021653][ T6382] do_el0_svc+0x58/0x14c [ 217.022383][ T6382] el0_svc+0x78/0x1e0 [ 217.023037][ T6382] el0t_64_sync_handler+0xcc/0xe4 [ 217.023878][ T6382] el0t_64_sync+0x1a0/0x1a4 [ 217.026301][ T6382] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.029000][ T136] device bridge_slave_0 left promiscuous mode [ 217.030001][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 217.031774][ T6382] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.158406][ T136] device veth1_macvtap left promiscuous mode [ 217.159394][ T136] device veth0_macvtap left promiscuous mode [ 217.160295][ T136] device veth1_vlan left promiscuous mode [ 217.161037][ T6384] loop1: detected capacity change from 0 to 32768 [ 217.161145][ T136] device veth0_vlan left promiscuous mode [ 217.242454][ T6384] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.243781][ T6384] CPU: 0 PID: 6384 Comm: syz.1.621 Not tainted 5.15.189-syzkaller #0 [ 217.245162][ T6384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 217.246715][ T6384] Call trace: [ 217.247207][ T6384] dump_backtrace+0x0/0x43c [ 217.247920][ T6384] show_stack+0x2c/0x3c [ 217.248595][ T6384] __dump_stack+0x30/0x40 [ 217.249340][ T6384] dump_stack_lvl+0xf8/0x160 [ 217.250135][ T6384] dump_stack+0x1c/0x5c [ 217.250800][ T6384] sysfs_create_dir_ns+0x22c/0x24c [ 217.251661][ T6384] kobject_add_internal+0x590/0xc54 [ 217.252540][ T6384] kobject_init_and_add+0x118/0x17c [ 217.253366][ T6384] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.254165][ T6384] gfs2_fill_super+0xdac/0x19e0 [ 217.254903][ T6384] get_tree_bdev+0x358/0x544 [ 217.255624][ T6384] gfs2_get_tree+0x54/0x1b4 [ 217.256355][ T6384] vfs_get_tree+0x90/0x274 [ 217.257042][ T6384] do_new_mount+0x228/0x810 [ 217.257753][ T6384] path_mount+0x5b4/0x1000 [ 217.258480][ T6384] __arm64_sys_mount+0x514/0x5e4 [ 217.259252][ T6384] invoke_syscall+0x98/0x2b8 [ 217.259955][ T6384] el0_svc_common+0x138/0x258 [ 217.260652][ T6384] do_el0_svc+0x58/0x14c [ 217.261297][ T6384] el0_svc+0x78/0x1e0 [ 217.261898][ T6384] el0t_64_sync_handler+0xcc/0xe4 [ 217.262653][ T6384] el0t_64_sync+0x1a0/0x1a4 [ 217.264499][ T136] team0 (unregistering): Port device team_slave_1 removed [ 217.266890][ T6384] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.269497][ T6384] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.291147][ T136] team0 (unregistering): Port device team_slave_0 removed [ 217.295240][ T136] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 217.340631][ T136] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 217.397083][ T6386] loop1: detected capacity change from 0 to 32768 [ 217.450028][ T6386] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.451186][ T6386] CPU: 0 PID: 6386 Comm: syz.1.622 Not tainted 5.15.189-syzkaller #0 [ 217.452339][ T6386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 217.453783][ T6386] Call trace: [ 217.454251][ T6386] dump_backtrace+0x0/0x43c [ 217.454947][ T6386] show_stack+0x2c/0x3c [ 217.455563][ T6386] __dump_stack+0x30/0x40 [ 217.456223][ T6386] dump_stack_lvl+0xf8/0x160 [ 217.456897][ T6386] dump_stack+0x1c/0x5c [ 217.457493][ T6386] sysfs_create_dir_ns+0x22c/0x24c [ 217.458258][ T6386] kobject_add_internal+0x590/0xc54 [ 217.459060][ T6386] kobject_init_and_add+0x118/0x17c [ 217.459854][ T6386] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.460638][ T6386] gfs2_fill_super+0xdac/0x19e0 [ 217.461461][ T6386] get_tree_bdev+0x358/0x544 [ 217.462181][ T6386] gfs2_get_tree+0x54/0x1b4 [ 217.462883][ T6386] vfs_get_tree+0x90/0x274 [ 217.463598][ T6386] do_new_mount+0x228/0x810 [ 217.464266][ T6386] path_mount+0x5b4/0x1000 [ 217.465035][ T6386] __arm64_sys_mount+0x514/0x5e4 [ 217.465870][ T6386] invoke_syscall+0x98/0x2b8 [ 217.466661][ T6386] el0_svc_common+0x138/0x258 [ 217.467455][ T6386] do_el0_svc+0x58/0x14c [ 217.468106][ T6386] el0_svc+0x78/0x1e0 [ 217.468727][ T6386] el0t_64_sync_handler+0xcc/0xe4 [ 217.469481][ T6386] el0t_64_sync+0x1a0/0x1a4 [ 217.473994][ T136] bond0 (unregistering): Released all slaves [ 217.475468][ T6386] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.477374][ T6386] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.628909][ T6388] loop1: detected capacity change from 0 to 32768 [ 217.684290][ T6388] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.685460][ T6388] CPU: 0 PID: 6388 Comm: syz.1.623 Not tainted 5.15.189-syzkaller #0 [ 217.686663][ T6388] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 217.688305][ T6388] Call trace: [ 217.688840][ T6388] dump_backtrace+0x0/0x43c [ 217.689537][ T6388] show_stack+0x2c/0x3c [ 217.690184][ T6388] __dump_stack+0x30/0x40 [ 217.690888][ T6388] dump_stack_lvl+0xf8/0x160 [ 217.691617][ T6388] dump_stack+0x1c/0x5c [ 217.692267][ T6388] sysfs_create_dir_ns+0x22c/0x24c [ 217.693089][ T6388] kobject_add_internal+0x590/0xc54 [ 217.693947][ T6388] kobject_init_and_add+0x118/0x17c [ 217.694786][ T6388] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.695517][ T6388] gfs2_fill_super+0xdac/0x19e0 [ 217.696269][ T6388] get_tree_bdev+0x358/0x544 [ 217.697033][ T6388] gfs2_get_tree+0x54/0x1b4 [ 217.697786][ T6388] vfs_get_tree+0x90/0x274 [ 217.698467][ T6388] do_new_mount+0x228/0x810 [ 217.699171][ T6388] path_mount+0x5b4/0x1000 [ 217.699819][ T6388] __arm64_sys_mount+0x514/0x5e4 [ 217.700561][ T6388] invoke_syscall+0x98/0x2b8 [ 217.701247][ T6388] el0_svc_common+0x138/0x258 [ 217.701970][ T6388] do_el0_svc+0x58/0x14c [ 217.702607][ T6388] el0_svc+0x78/0x1e0 [ 217.703278][ T6388] el0t_64_sync_handler+0xcc/0xe4 [ 217.704039][ T6388] el0t_64_sync+0x1a0/0x1a4 [ 217.706822][ T6388] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.709025][ T6388] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.844033][ T6390] loop1: detected capacity change from 0 to 32768 [ 217.899654][ T6390] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.900752][ T6390] CPU: 1 PID: 6390 Comm: syz.1.624 Not tainted 5.15.189-syzkaller #0 [ 217.902029][ T6390] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 217.903523][ T6390] Call trace: [ 217.903977][ T6390] dump_backtrace+0x0/0x43c [ 217.904626][ T6390] show_stack+0x2c/0x3c [ 217.905212][ T6390] __dump_stack+0x30/0x40 [ 217.905815][ T6390] dump_stack_lvl+0xf8/0x160 [ 217.906551][ T6390] dump_stack+0x1c/0x5c [ 217.907218][ T6390] sysfs_create_dir_ns+0x22c/0x24c [ 217.908042][ T6390] kobject_add_internal+0x590/0xc54 [ 217.908854][ T6390] kobject_init_and_add+0x118/0x17c [ 217.909625][ T6390] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.910333][ T6390] gfs2_fill_super+0xdac/0x19e0 [ 217.911060][ T6390] get_tree_bdev+0x358/0x544 [ 217.911759][ T6390] gfs2_get_tree+0x54/0x1b4 [ 217.912405][ T6390] vfs_get_tree+0x90/0x274 [ 217.913103][ T6390] do_new_mount+0x228/0x810 [ 217.913789][ T6390] path_mount+0x5b4/0x1000 [ 217.914500][ T6390] __arm64_sys_mount+0x514/0x5e4 [ 217.915324][ T6390] invoke_syscall+0x98/0x2b8 [ 217.916105][ T6390] el0_svc_common+0x138/0x258 [ 217.916916][ T6390] do_el0_svc+0x58/0x14c [ 217.917622][ T6390] el0_svc+0x78/0x1e0 [ 217.918321][ T6390] el0t_64_sync_handler+0xcc/0xe4 [ 217.919183][ T6390] el0t_64_sync+0x1a0/0x1a4 [ 217.920681][ T6390] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.922678][ T6390] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.047706][ T6392] loop1: detected capacity change from 0 to 32768 [ 218.111206][ T6392] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.112282][ T6392] CPU: 1 PID: 6392 Comm: syz.1.625 Not tainted 5.15.189-syzkaller #0 [ 218.113387][ T6392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 218.114752][ T6392] Call trace: [ 218.115180][ T6392] dump_backtrace+0x0/0x43c [ 218.115834][ T6392] show_stack+0x2c/0x3c [ 218.116412][ T6392] __dump_stack+0x30/0x40 [ 218.117080][ T6392] dump_stack_lvl+0xf8/0x160 [ 218.117823][ T6392] dump_stack+0x1c/0x5c [ 218.118456][ T6392] sysfs_create_dir_ns+0x22c/0x24c [ 218.119249][ T6392] kobject_add_internal+0x590/0xc54 [ 218.120066][ T6392] kobject_init_and_add+0x118/0x17c [ 218.120860][ T6392] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.121602][ T6392] gfs2_fill_super+0xdac/0x19e0 [ 218.122437][ T6392] get_tree_bdev+0x358/0x544 [ 218.123178][ T6392] gfs2_get_tree+0x54/0x1b4 [ 218.123882][ T6392] vfs_get_tree+0x90/0x274 [ 218.124615][ T6392] do_new_mount+0x228/0x810 [ 218.125337][ T6392] path_mount+0x5b4/0x1000 [ 218.126053][ T6392] __arm64_sys_mount+0x514/0x5e4 [ 218.126849][ T6392] invoke_syscall+0x98/0x2b8 [ 218.127585][ T6392] el0_svc_common+0x138/0x258 [ 218.128330][ T6392] do_el0_svc+0x58/0x14c [ 218.129013][ T6392] el0_svc+0x78/0x1e0 [ 218.129709][ T6392] el0t_64_sync_handler+0xcc/0xe4 [ 218.130546][ T6392] el0t_64_sync+0x1a0/0x1a4 [ 218.132976][ T6392] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.134957][ T6392] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.362832][ T6394] loop1: detected capacity change from 0 to 32768 [ 218.405022][ T6394] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.406259][ T6394] CPU: 0 PID: 6394 Comm: syz.1.626 Not tainted 5.15.189-syzkaller #0 [ 218.407624][ T6394] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 218.409300][ T6394] Call trace: [ 218.409868][ T6394] dump_backtrace+0x0/0x43c [ 218.410615][ T6394] show_stack+0x2c/0x3c [ 218.411314][ T6394] __dump_stack+0x30/0x40 [ 218.412045][ T6394] dump_stack_lvl+0xf8/0x160 [ 218.412778][ T6394] dump_stack+0x1c/0x5c [ 218.413436][ T6394] sysfs_create_dir_ns+0x22c/0x24c [ 218.414237][ T6394] kobject_add_internal+0x590/0xc54 [ 218.415064][ T6394] kobject_init_and_add+0x118/0x17c [ 218.415876][ T6394] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.416607][ T6394] gfs2_fill_super+0xdac/0x19e0 [ 218.417356][ T6394] get_tree_bdev+0x358/0x544 [ 218.418049][ T6394] gfs2_get_tree+0x54/0x1b4 [ 218.418714][ T6394] vfs_get_tree+0x90/0x274 [ 218.419345][ T6394] do_new_mount+0x228/0x810 [ 218.419997][ T6394] path_mount+0x5b4/0x1000 [ 218.420639][ T6394] __arm64_sys_mount+0x514/0x5e4 [ 218.421365][ T6394] invoke_syscall+0x98/0x2b8 [ 218.422044][ T6394] el0_svc_common+0x138/0x258 [ 218.422728][ T6394] do_el0_svc+0x58/0x14c [ 218.423330][ T6394] el0_svc+0x78/0x1e0 [ 218.423901][ T6394] el0t_64_sync_handler+0xcc/0xe4 [ 218.424603][ T6394] el0t_64_sync+0x1a0/0x1a4 [ 218.426799][ T6394] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.429227][ T6394] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.563349][ T6396] loop1: detected capacity change from 0 to 32768 [ 218.599616][ T6396] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.600747][ T6396] CPU: 1 PID: 6396 Comm: syz.1.627 Not tainted 5.15.189-syzkaller #0 [ 218.602129][ T6396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 218.603797][ T6396] Call trace: [ 218.604335][ T6396] dump_backtrace+0x0/0x43c [ 218.605105][ T6396] show_stack+0x2c/0x3c [ 218.605813][ T6396] __dump_stack+0x30/0x40 [ 218.606544][ T6396] dump_stack_lvl+0xf8/0x160 [ 218.607328][ T6396] dump_stack+0x1c/0x5c [ 218.607998][ T6396] sysfs_create_dir_ns+0x22c/0x24c [ 218.608803][ T6396] kobject_add_internal+0x590/0xc54 [ 218.609646][ T6396] kobject_init_and_add+0x118/0x17c [ 218.610504][ T6396] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.611312][ T6396] gfs2_fill_super+0xdac/0x19e0 [ 218.612131][ T6396] get_tree_bdev+0x358/0x544 [ 218.612884][ T6396] gfs2_get_tree+0x54/0x1b4 [ 218.613588][ T6396] vfs_get_tree+0x90/0x274 [ 218.614248][ T6396] do_new_mount+0x228/0x810 [ 218.614912][ T6396] path_mount+0x5b4/0x1000 [ 218.615633][ T6396] __arm64_sys_mount+0x514/0x5e4 [ 218.616468][ T6396] invoke_syscall+0x98/0x2b8 [ 218.617157][ T6396] el0_svc_common+0x138/0x258 [ 218.617924][ T6396] do_el0_svc+0x58/0x14c [ 218.618591][ T6396] el0_svc+0x78/0x1e0 [ 218.619231][ T6396] el0t_64_sync_handler+0xcc/0xe4 [ 218.620073][ T6396] el0t_64_sync+0x1a0/0x1a4 [ 218.621390][ T6396] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.623526][ T6396] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.767540][ T6398] loop1: detected capacity change from 0 to 32768 [ 218.891365][ T6398] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.892493][ T6398] CPU: 1 PID: 6398 Comm: syz.1.628 Not tainted 5.15.189-syzkaller #0 [ 218.893670][ T6398] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 218.895092][ T6398] Call trace: [ 218.895552][ T6398] dump_backtrace+0x0/0x43c [ 218.896197][ T6398] show_stack+0x2c/0x3c [ 218.896792][ T6398] __dump_stack+0x30/0x40 [ 218.897408][ T6398] dump_stack_lvl+0xf8/0x160 [ 218.898063][ T6398] dump_stack+0x1c/0x5c [ 218.898676][ T6398] sysfs_create_dir_ns+0x22c/0x24c [ 218.899422][ T6398] kobject_add_internal+0x590/0xc54 [ 218.900150][ T6398] kobject_init_and_add+0x118/0x17c [ 218.900880][ T6398] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.901566][ T6398] gfs2_fill_super+0xdac/0x19e0 [ 218.902360][ T6398] get_tree_bdev+0x358/0x544 [ 218.903095][ T6398] gfs2_get_tree+0x54/0x1b4 [ 218.903842][ T6398] vfs_get_tree+0x90/0x274 [ 218.904564][ T6398] do_new_mount+0x228/0x810 [ 218.905217][ T6398] path_mount+0x5b4/0x1000 [ 218.905903][ T6398] __arm64_sys_mount+0x514/0x5e4 [ 218.906640][ T6398] invoke_syscall+0x98/0x2b8 [ 218.907298][ T6398] el0_svc_common+0x138/0x258 [ 218.907980][ T6398] do_el0_svc+0x58/0x14c [ 218.908681][ T6398] el0_svc+0x78/0x1e0 [ 218.909352][ T6398] el0t_64_sync_handler+0xcc/0xe4 [ 218.910105][ T6398] el0t_64_sync+0x1a0/0x1a4 [ 218.934687][ T6398] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.936809][ T6398] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.978403][ T4061] Bluetooth: hci2: command 0x041b tx timeout [ 219.074244][ T6400] loop1: detected capacity change from 0 to 32768 [ 219.081841][ T6400] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.083061][ T6400] CPU: 0 PID: 6400 Comm: syz.1.629 Not tainted 5.15.189-syzkaller #0 [ 219.084414][ T6400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 219.086075][ T6400] Call trace: [ 219.086633][ T6400] dump_backtrace+0x0/0x43c [ 219.087401][ T6400] show_stack+0x2c/0x3c [ 219.088022][ T6400] __dump_stack+0x30/0x40 [ 219.088769][ T6400] dump_stack_lvl+0xf8/0x160 [ 219.089534][ T6400] dump_stack+0x1c/0x5c [ 219.090279][ T6400] sysfs_create_dir_ns+0x22c/0x24c [ 219.091147][ T6400] kobject_add_internal+0x590/0xc54 [ 219.092004][ T6400] kobject_init_and_add+0x118/0x17c [ 219.092819][ T6400] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.093614][ T6400] gfs2_fill_super+0xdac/0x19e0 [ 219.094420][ T6400] get_tree_bdev+0x358/0x544 [ 219.095125][ T6400] gfs2_get_tree+0x54/0x1b4 [ 219.095804][ T6400] vfs_get_tree+0x90/0x274 [ 219.096522][ T6400] do_new_mount+0x228/0x810 [ 219.097234][ T6400] path_mount+0x5b4/0x1000 [ 219.097994][ T6400] __arm64_sys_mount+0x514/0x5e4 [ 219.098793][ T6400] invoke_syscall+0x98/0x2b8 [ 219.099504][ T6400] el0_svc_common+0x138/0x258 [ 219.100246][ T6400] do_el0_svc+0x58/0x14c [ 219.100972][ T6400] el0_svc+0x78/0x1e0 [ 219.101610][ T6400] el0t_64_sync_handler+0xcc/0xe4 [ 219.102451][ T6400] el0t_64_sync+0x1a0/0x1a4 [ 219.105105][ T6400] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.107173][ T6400] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.237155][ T6402] loop1: detected capacity change from 0 to 32768 [ 219.318718][ T6402] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.320002][ T6402] CPU: 1 PID: 6402 Comm: syz.1.630 Not tainted 5.15.189-syzkaller #0 [ 219.321398][ T6402] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 219.323046][ T6402] Call trace: [ 219.323578][ T6402] dump_backtrace+0x0/0x43c [ 219.324333][ T6402] show_stack+0x2c/0x3c [ 219.324990][ T6402] __dump_stack+0x30/0x40 [ 219.325736][ T6402] dump_stack_lvl+0xf8/0x160 [ 219.326550][ T6402] dump_stack+0x1c/0x5c [ 219.327213][ T6402] sysfs_create_dir_ns+0x22c/0x24c [ 219.328032][ T6402] kobject_add_internal+0x590/0xc54 [ 219.328866][ T6402] kobject_init_and_add+0x118/0x17c [ 219.329691][ T6402] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.330512][ T6402] gfs2_fill_super+0xdac/0x19e0 [ 219.331352][ T6402] get_tree_bdev+0x358/0x544 [ 219.332075][ T6402] gfs2_get_tree+0x54/0x1b4 [ 219.332826][ T6402] vfs_get_tree+0x90/0x274 [ 219.333533][ T6402] do_new_mount+0x228/0x810 [ 219.334277][ T6402] path_mount+0x5b4/0x1000 [ 219.334928][ T6402] __arm64_sys_mount+0x514/0x5e4 [ 219.335693][ T6402] invoke_syscall+0x98/0x2b8 [ 219.336345][ T6402] el0_svc_common+0x138/0x258 [ 219.337033][ T6402] do_el0_svc+0x58/0x14c [ 219.337678][ T6402] el0_svc+0x78/0x1e0 [ 219.338252][ T6402] el0t_64_sync_handler+0xcc/0xe4 [ 219.338977][ T6402] el0t_64_sync+0x1a0/0x1a4 [ 219.341199][ T6402] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.343100][ T6402] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.469076][ T6404] loop1: detected capacity change from 0 to 32768 [ 219.560422][ T6404] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.561566][ T6404] CPU: 0 PID: 6404 Comm: syz.1.631 Not tainted 5.15.189-syzkaller #0 [ 219.562768][ T6404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 219.564282][ T6404] Call trace: [ 219.564789][ T6404] dump_backtrace+0x0/0x43c [ 219.565478][ T6404] show_stack+0x2c/0x3c [ 219.566178][ T6404] __dump_stack+0x30/0x40 [ 219.566900][ T6404] dump_stack_lvl+0xf8/0x160 [ 219.567627][ T6404] dump_stack+0x1c/0x5c [ 219.568274][ T6404] sysfs_create_dir_ns+0x22c/0x24c [ 219.569093][ T6404] kobject_add_internal+0x590/0xc54 [ 219.569934][ T6404] kobject_init_and_add+0x118/0x17c [ 219.570740][ T6404] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.571464][ T6404] gfs2_fill_super+0xdac/0x19e0 [ 219.572146][ T6404] get_tree_bdev+0x358/0x544 [ 219.572808][ T6404] gfs2_get_tree+0x54/0x1b4 [ 219.573558][ T6404] vfs_get_tree+0x90/0x274 [ 219.574287][ T6404] do_new_mount+0x228/0x810 [ 219.574979][ T6404] path_mount+0x5b4/0x1000 [ 219.575644][ T6404] __arm64_sys_mount+0x514/0x5e4 [ 219.576446][ T6404] invoke_syscall+0x98/0x2b8 [ 219.577183][ T6404] el0_svc_common+0x138/0x258 [ 219.577940][ T6404] do_el0_svc+0x58/0x14c [ 219.578677][ T6404] el0_svc+0x78/0x1e0 [ 219.579284][ T6404] el0t_64_sync_handler+0xcc/0xe4 [ 219.580154][ T6404] el0t_64_sync+0x1a0/0x1a4 [ 219.582610][ T6404] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.584628][ T6404] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.715845][ T6406] loop1: detected capacity change from 0 to 32768 [ 219.749786][ T6406] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.751167][ T6406] CPU: 1 PID: 6406 Comm: syz.1.632 Not tainted 5.15.189-syzkaller #0 [ 219.752368][ T6406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 219.753826][ T6406] Call trace: [ 219.754287][ T6406] dump_backtrace+0x0/0x43c [ 219.754929][ T6406] show_stack+0x2c/0x3c [ 219.755539][ T6406] __dump_stack+0x30/0x40 [ 219.756237][ T6406] dump_stack_lvl+0xf8/0x160 [ 219.756946][ T6406] dump_stack+0x1c/0x5c [ 219.757576][ T6406] sysfs_create_dir_ns+0x22c/0x24c [ 219.758332][ T6406] kobject_add_internal+0x590/0xc54 [ 219.759166][ T6406] kobject_init_and_add+0x118/0x17c [ 219.760015][ T6406] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.760813][ T6406] gfs2_fill_super+0xdac/0x19e0 [ 219.761621][ T6406] get_tree_bdev+0x358/0x544 [ 219.762322][ T6406] gfs2_get_tree+0x54/0x1b4 [ 219.763008][ T6406] vfs_get_tree+0x90/0x274 [ 219.763684][ T6406] do_new_mount+0x228/0x810 [ 219.764389][ T6406] path_mount+0x5b4/0x1000 [ 219.765063][ T6406] __arm64_sys_mount+0x514/0x5e4 [ 219.765803][ T6406] invoke_syscall+0x98/0x2b8 [ 219.766495][ T6406] el0_svc_common+0x138/0x258 [ 219.767314][ T6406] do_el0_svc+0x58/0x14c [ 219.768012][ T6406] el0_svc+0x78/0x1e0 [ 219.768626][ T6406] el0t_64_sync_handler+0xcc/0xe4 [ 219.769445][ T6406] el0t_64_sync+0x1a0/0x1a4 [ 219.770591][ T6406] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.772731][ T6406] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.898447][ T6408] loop1: detected capacity change from 0 to 32768 [ 219.939690][ T6408] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.940872][ T6408] CPU: 0 PID: 6408 Comm: syz.1.633 Not tainted 5.15.189-syzkaller #0 [ 219.942109][ T6408] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 219.943603][ T6408] Call trace: [ 219.944129][ T6408] dump_backtrace+0x0/0x43c [ 219.944875][ T6408] show_stack+0x2c/0x3c [ 219.945517][ T6408] __dump_stack+0x30/0x40 [ 219.946224][ T6408] dump_stack_lvl+0xf8/0x160 [ 219.946970][ T6408] dump_stack+0x1c/0x5c [ 219.947629][ T6408] sysfs_create_dir_ns+0x22c/0x24c [ 219.948510][ T6408] kobject_add_internal+0x590/0xc54 [ 219.949385][ T6408] kobject_init_and_add+0x118/0x17c [ 219.950249][ T6408] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.951065][ T6408] gfs2_fill_super+0xdac/0x19e0 [ 219.951862][ T6408] get_tree_bdev+0x358/0x544 [ 219.952634][ T6408] gfs2_get_tree+0x54/0x1b4 [ 219.953423][ T6408] vfs_get_tree+0x90/0x274 [ 219.954156][ T6408] do_new_mount+0x228/0x810 [ 219.954827][ T6408] path_mount+0x5b4/0x1000 [ 219.955485][ T6408] __arm64_sys_mount+0x514/0x5e4 [ 219.956233][ T6408] invoke_syscall+0x98/0x2b8 [ 219.956985][ T6408] el0_svc_common+0x138/0x258 [ 219.957686][ T6408] do_el0_svc+0x58/0x14c [ 219.958324][ T6408] el0_svc+0x78/0x1e0 [ 219.958921][ T6408] el0t_64_sync_handler+0xcc/0xe4 [ 219.959659][ T6408] el0t_64_sync+0x1a0/0x1a4 [ 219.961064][ T6408] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.963036][ T6408] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.096131][ T6410] loop1: detected capacity change from 0 to 32768 [ 220.105291][ T6410] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.106524][ T6410] CPU: 1 PID: 6410 Comm: syz.1.634 Not tainted 5.15.189-syzkaller #0 [ 220.107681][ T6410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.109124][ T6410] Call trace: [ 220.109591][ T6410] dump_backtrace+0x0/0x43c [ 220.110255][ T6410] show_stack+0x2c/0x3c [ 220.110862][ T6410] __dump_stack+0x30/0x40 [ 220.111506][ T6410] dump_stack_lvl+0xf8/0x160 [ 220.112232][ T6410] dump_stack+0x1c/0x5c [ 220.112848][ T6410] sysfs_create_dir_ns+0x22c/0x24c [ 220.113599][ T6410] kobject_add_internal+0x590/0xc54 [ 220.114371][ T6410] kobject_init_and_add+0x118/0x17c [ 220.115167][ T6410] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.115870][ T6410] gfs2_fill_super+0xdac/0x19e0 [ 220.116570][ T6410] get_tree_bdev+0x358/0x544 [ 220.117220][ T6410] gfs2_get_tree+0x54/0x1b4 [ 220.117864][ T6410] vfs_get_tree+0x90/0x274 [ 220.118578][ T6410] do_new_mount+0x228/0x810 [ 220.119333][ T6410] path_mount+0x5b4/0x1000 [ 220.120033][ T6410] __arm64_sys_mount+0x514/0x5e4 [ 220.120844][ T6410] invoke_syscall+0x98/0x2b8 [ 220.121543][ T6410] el0_svc_common+0x138/0x258 [ 220.122213][ T6410] do_el0_svc+0x58/0x14c [ 220.122877][ T6410] el0_svc+0x78/0x1e0 [ 220.123549][ T6410] el0t_64_sync_handler+0xcc/0xe4 [ 220.124367][ T6410] el0t_64_sync+0x1a0/0x1a4 [ 220.126613][ T6410] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.128893][ T6410] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.254970][ T6412] loop1: detected capacity change from 0 to 32768 [ 220.299572][ T6412] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.300725][ T6412] CPU: 1 PID: 6412 Comm: syz.1.635 Not tainted 5.15.189-syzkaller #0 [ 220.301929][ T6412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.303323][ T6412] Call trace: [ 220.303782][ T6412] dump_backtrace+0x0/0x43c [ 220.304452][ T6412] show_stack+0x2c/0x3c [ 220.305042][ T6412] __dump_stack+0x30/0x40 [ 220.305663][ T6412] dump_stack_lvl+0xf8/0x160 [ 220.306291][ T6412] dump_stack+0x1c/0x5c [ 220.306850][ T6412] sysfs_create_dir_ns+0x22c/0x24c [ 220.307577][ T6412] kobject_add_internal+0x590/0xc54 [ 220.308339][ T6412] kobject_init_and_add+0x118/0x17c [ 220.309081][ T6412] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.309761][ T6412] gfs2_fill_super+0xdac/0x19e0 [ 220.310580][ T6412] get_tree_bdev+0x358/0x544 [ 220.311330][ T6412] gfs2_get_tree+0x54/0x1b4 [ 220.312081][ T6412] vfs_get_tree+0x90/0x274 [ 220.312806][ T6412] do_new_mount+0x228/0x810 [ 220.313513][ T6412] path_mount+0x5b4/0x1000 [ 220.314210][ T6412] __arm64_sys_mount+0x514/0x5e4 [ 220.314954][ T6412] invoke_syscall+0x98/0x2b8 [ 220.315640][ T6412] el0_svc_common+0x138/0x258 [ 220.316328][ T6412] do_el0_svc+0x58/0x14c [ 220.316963][ T6412] el0_svc+0x78/0x1e0 [ 220.317561][ T6412] el0t_64_sync_handler+0xcc/0xe4 [ 220.318300][ T6412] el0t_64_sync+0x1a0/0x1a4 [ 220.320767][ T6412] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.322868][ T6412] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.449178][ T6414] loop1: detected capacity change from 0 to 32768 [ 220.552686][ T6414] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.553846][ T6414] CPU: 0 PID: 6414 Comm: syz.1.636 Not tainted 5.15.189-syzkaller #0 [ 220.555159][ T6414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.556569][ T6414] Call trace: [ 220.557101][ T6414] dump_backtrace+0x0/0x43c [ 220.557831][ T6414] show_stack+0x2c/0x3c [ 220.558511][ T6414] __dump_stack+0x30/0x40 [ 220.559180][ T6414] dump_stack_lvl+0xf8/0x160 [ 220.559893][ T6414] dump_stack+0x1c/0x5c [ 220.560619][ T6414] sysfs_create_dir_ns+0x22c/0x24c [ 220.561452][ T6414] kobject_add_internal+0x590/0xc54 [ 220.562296][ T6414] kobject_init_and_add+0x118/0x17c [ 220.563178][ T6414] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.564011][ T6414] gfs2_fill_super+0xdac/0x19e0 [ 220.564797][ T6414] get_tree_bdev+0x358/0x544 [ 220.565518][ T6414] gfs2_get_tree+0x54/0x1b4 [ 220.566226][ T6414] vfs_get_tree+0x90/0x274 [ 220.566912][ T6414] do_new_mount+0x228/0x810 [ 220.567637][ T6414] path_mount+0x5b4/0x1000 [ 220.568337][ T6414] __arm64_sys_mount+0x514/0x5e4 [ 220.569121][ T6414] invoke_syscall+0x98/0x2b8 [ 220.569872][ T6414] el0_svc_common+0x138/0x258 [ 220.570638][ T6414] do_el0_svc+0x58/0x14c [ 220.571367][ T6414] el0_svc+0x78/0x1e0 [ 220.572023][ T6414] el0t_64_sync_handler+0xcc/0xe4 [ 220.572830][ T6414] el0t_64_sync+0x1a0/0x1a4 [ 220.574155][ T6414] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.576222][ T6414] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.704908][ T6416] loop1: detected capacity change from 0 to 32768 [ 220.712441][ T6416] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.713656][ T6416] CPU: 1 PID: 6416 Comm: syz.1.637 Not tainted 5.15.189-syzkaller #0 [ 220.714951][ T6416] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.716561][ T6416] Call trace: [ 220.717073][ T6416] dump_backtrace+0x0/0x43c [ 220.717713][ T6416] show_stack+0x2c/0x3c [ 220.718265][ T6416] __dump_stack+0x30/0x40 [ 220.718904][ T6416] dump_stack_lvl+0xf8/0x160 [ 220.719548][ T6416] dump_stack+0x1c/0x5c [ 220.720143][ T6416] sysfs_create_dir_ns+0x22c/0x24c [ 220.720862][ T6416] kobject_add_internal+0x590/0xc54 [ 220.721597][ T6416] kobject_init_and_add+0x118/0x17c [ 220.722344][ T6416] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.723017][ T6416] gfs2_fill_super+0xdac/0x19e0 [ 220.723695][ T6416] get_tree_bdev+0x358/0x544 [ 220.724342][ T6416] gfs2_get_tree+0x54/0x1b4 [ 220.725011][ T6416] vfs_get_tree+0x90/0x274 [ 220.725669][ T6416] do_new_mount+0x228/0x810 [ 220.726300][ T6416] path_mount+0x5b4/0x1000 [ 220.726953][ T6416] __arm64_sys_mount+0x514/0x5e4 [ 220.727678][ T6416] invoke_syscall+0x98/0x2b8 [ 220.728489][ T6416] el0_svc_common+0x138/0x258 [ 220.729305][ T6416] do_el0_svc+0x58/0x14c [ 220.730009][ T6416] el0_svc+0x78/0x1e0 [ 220.730683][ T6416] el0t_64_sync_handler+0xcc/0xe4 [ 220.731503][ T6416] el0t_64_sync+0x1a0/0x1a4 [ 220.732425][ T6416] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.734518][ T6416] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.905902][ T6418] loop1: detected capacity change from 0 to 32768 [ 220.939572][ T6418] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.940765][ T6418] CPU: 0 PID: 6418 Comm: syz.1.638 Not tainted 5.15.189-syzkaller #0 [ 220.941933][ T6418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.943583][ T6418] Call trace: [ 220.944093][ T6418] dump_backtrace+0x0/0x43c [ 220.944786][ T6418] show_stack+0x2c/0x3c [ 220.945421][ T6418] __dump_stack+0x30/0x40 [ 220.946072][ T6418] dump_stack_lvl+0xf8/0x160 [ 220.946769][ T6418] dump_stack+0x1c/0x5c [ 220.947369][ T6418] sysfs_create_dir_ns+0x22c/0x24c [ 220.948141][ T6418] kobject_add_internal+0x590/0xc54 [ 220.948999][ T6418] kobject_init_and_add+0x118/0x17c [ 220.949862][ T6418] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.950641][ T6418] gfs2_fill_super+0xdac/0x19e0 [ 220.951408][ T6418] get_tree_bdev+0x358/0x544 [ 220.952128][ T6418] gfs2_get_tree+0x54/0x1b4 [ 220.952824][ T6418] vfs_get_tree+0x90/0x274 [ 220.953527][ T6418] do_new_mount+0x228/0x810 [ 220.954262][ T6418] path_mount+0x5b4/0x1000 [ 220.954963][ T6418] __arm64_sys_mount+0x514/0x5e4 [ 220.955737][ T6418] invoke_syscall+0x98/0x2b8 [ 220.956456][ T6418] el0_svc_common+0x138/0x258 [ 220.957156][ T6418] do_el0_svc+0x58/0x14c [ 220.957903][ T6418] el0_svc+0x78/0x1e0 [ 220.958563][ T6418] el0t_64_sync_handler+0xcc/0xe4 [ 220.959368][ T6418] el0t_64_sync+0x1a0/0x1a4 [ 220.960243][ T6418] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.962145][ T6418] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.058366][ T5119] Bluetooth: hci2: command 0x040f tx timeout [ 221.090625][ T6420] loop1: detected capacity change from 0 to 32768 [ 221.137180][ T6420] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.138434][ T6420] CPU: 1 PID: 6420 Comm: syz.1.639 Not tainted 5.15.189-syzkaller #0 [ 221.139736][ T6420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 221.141420][ T6420] Call trace: [ 221.141947][ T6420] dump_backtrace+0x0/0x43c [ 221.142673][ T6420] show_stack+0x2c/0x3c [ 221.143310][ T6420] __dump_stack+0x30/0x40 [ 221.143979][ T6420] dump_stack_lvl+0xf8/0x160 [ 221.144735][ T6420] dump_stack+0x1c/0x5c [ 221.145415][ T6420] sysfs_create_dir_ns+0x22c/0x24c [ 221.146191][ T6420] kobject_add_internal+0x590/0xc54 [ 221.146986][ T6420] kobject_init_and_add+0x118/0x17c [ 221.147788][ T6420] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.148529][ T6420] gfs2_fill_super+0xdac/0x19e0 [ 221.149301][ T6420] get_tree_bdev+0x358/0x544 [ 221.150040][ T6420] gfs2_get_tree+0x54/0x1b4 [ 221.150764][ T6420] vfs_get_tree+0x90/0x274 [ 221.151449][ T6420] do_new_mount+0x228/0x810 [ 221.152148][ T6420] path_mount+0x5b4/0x1000 [ 221.152866][ T6420] __arm64_sys_mount+0x514/0x5e4 [ 221.153720][ T6420] invoke_syscall+0x98/0x2b8 [ 221.154484][ T6420] el0_svc_common+0x138/0x258 [ 221.155266][ T6420] do_el0_svc+0x58/0x14c [ 221.155954][ T6420] el0_svc+0x78/0x1e0 [ 221.156643][ T6420] el0t_64_sync_handler+0xcc/0xe4 [ 221.157429][ T6420] el0t_64_sync+0x1a0/0x1a4 [ 221.159948][ T6420] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.161974][ T6420] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.293050][ T6422] loop1: detected capacity change from 0 to 32768 [ 221.300999][ T6422] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.302129][ T6422] CPU: 0 PID: 6422 Comm: syz.1.640 Not tainted 5.15.189-syzkaller #0 [ 221.303296][ T6422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 221.304727][ T6422] Call trace: [ 221.305255][ T6422] dump_backtrace+0x0/0x43c [ 221.306031][ T6422] show_stack+0x2c/0x3c [ 221.306750][ T6422] __dump_stack+0x30/0x40 [ 221.307449][ T6422] dump_stack_lvl+0xf8/0x160 [ 221.308204][ T6422] dump_stack+0x1c/0x5c [ 221.308927][ T6422] sysfs_create_dir_ns+0x22c/0x24c [ 221.309818][ T6422] kobject_add_internal+0x590/0xc54 [ 221.310672][ T6422] kobject_init_and_add+0x118/0x17c [ 221.311505][ T6422] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.312244][ T6422] gfs2_fill_super+0xdac/0x19e0 [ 221.312940][ T6422] get_tree_bdev+0x358/0x544 [ 221.313616][ T6422] gfs2_get_tree+0x54/0x1b4 [ 221.314300][ T6422] vfs_get_tree+0x90/0x274 [ 221.314935][ T6422] do_new_mount+0x228/0x810 [ 221.315613][ T6422] path_mount+0x5b4/0x1000 [ 221.316348][ T6422] __arm64_sys_mount+0x514/0x5e4 [ 221.317202][ T6422] invoke_syscall+0x98/0x2b8 [ 221.317973][ T6422] el0_svc_common+0x138/0x258 [ 221.318735][ T6422] do_el0_svc+0x58/0x14c [ 221.319450][ T6422] el0_svc+0x78/0x1e0 [ 221.320113][ T6422] el0t_64_sync_handler+0xcc/0xe4 [ 221.320870][ T6422] el0t_64_sync+0x1a0/0x1a4 [ 221.323142][ T6422] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.325231][ T6422] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.463830][ T6424] loop1: detected capacity change from 0 to 32768 [ 221.543636][ T6424] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.544779][ T6424] CPU: 1 PID: 6424 Comm: syz.1.641 Not tainted 5.15.189-syzkaller #0 [ 221.546012][ T6424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 221.547584][ T6424] Call trace: [ 221.548069][ T6424] dump_backtrace+0x0/0x43c [ 221.548729][ T6424] show_stack+0x2c/0x3c [ 221.549443][ T6424] __dump_stack+0x30/0x40 [ 221.550133][ T6424] dump_stack_lvl+0xf8/0x160 [ 221.550891][ T6424] dump_stack+0x1c/0x5c [ 221.551588][ T6424] sysfs_create_dir_ns+0x22c/0x24c [ 221.552415][ T6424] kobject_add_internal+0x590/0xc54 [ 221.553276][ T6424] kobject_init_and_add+0x118/0x17c [ 221.554165][ T6424] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.554990][ T6424] gfs2_fill_super+0xdac/0x19e0 [ 221.555843][ T6424] get_tree_bdev+0x358/0x544 [ 221.556612][ T6424] gfs2_get_tree+0x54/0x1b4 [ 221.557398][ T6424] vfs_get_tree+0x90/0x274 [ 221.558174][ T6424] do_new_mount+0x228/0x810 [ 221.558911][ T6424] path_mount+0x5b4/0x1000 [ 221.559579][ T6424] __arm64_sys_mount+0x514/0x5e4 [ 221.560324][ T6424] invoke_syscall+0x98/0x2b8 [ 221.561031][ T6424] el0_svc_common+0x138/0x258 [ 221.561751][ T6424] do_el0_svc+0x58/0x14c [ 221.562391][ T6424] el0_svc+0x78/0x1e0 [ 221.563002][ T6424] el0t_64_sync_handler+0xcc/0xe4 [ 221.563873][ T6424] el0t_64_sync+0x1a0/0x1a4 [ 221.566039][ T6424] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.567810][ T6424] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:41 executed programs: 628 [ 221.696207][ T6426] loop1: detected capacity change from 0 to 32768 [ 221.739575][ T6426] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.740691][ T6426] CPU: 1 PID: 6426 Comm: syz.1.642 Not tainted 5.15.189-syzkaller #0 [ 221.742025][ T6426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 221.743559][ T6426] Call trace: [ 221.744045][ T6426] dump_backtrace+0x0/0x43c [ 221.744727][ T6426] show_stack+0x2c/0x3c [ 221.745403][ T6426] __dump_stack+0x30/0x40 [ 221.746117][ T6426] dump_stack_lvl+0xf8/0x160 [ 221.746805][ T6426] dump_stack+0x1c/0x5c [ 221.747452][ T6426] sysfs_create_dir_ns+0x22c/0x24c [ 221.748259][ T6426] kobject_add_internal+0x590/0xc54 [ 221.749115][ T6426] kobject_init_and_add+0x118/0x17c [ 221.749983][ T6426] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.750764][ T6426] gfs2_fill_super+0xdac/0x19e0 [ 221.751560][ T6426] get_tree_bdev+0x358/0x544 [ 221.752282][ T6426] gfs2_get_tree+0x54/0x1b4 [ 221.752960][ T6426] vfs_get_tree+0x90/0x274 [ 221.753641][ T6426] do_new_mount+0x228/0x810 [ 221.754336][ T6426] path_mount+0x5b4/0x1000 [ 221.755042][ T6426] __arm64_sys_mount+0x514/0x5e4 [ 221.755814][ T6426] invoke_syscall+0x98/0x2b8 [ 221.756527][ T6426] el0_svc_common+0x138/0x258 [ 221.757216][ T6426] do_el0_svc+0x58/0x14c [ 221.757875][ T6426] el0_svc+0x78/0x1e0 [ 221.758474][ T6426] el0t_64_sync_handler+0xcc/0xe4 [ 221.759205][ T6426] el0t_64_sync+0x1a0/0x1a4 [ 221.761408][ T6426] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.763379][ T6426] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.894865][ T6428] loop1: detected capacity change from 0 to 32768 [ 221.902627][ T6428] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.903748][ T6428] CPU: 1 PID: 6428 Comm: syz.1.643 Not tainted 5.15.189-syzkaller #0 [ 221.904897][ T6428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 221.906421][ T6428] Call trace: [ 221.906872][ T6428] dump_backtrace+0x0/0x43c [ 221.907551][ T6428] show_stack+0x2c/0x3c [ 221.908198][ T6428] __dump_stack+0x30/0x40 [ 221.908928][ T6428] dump_stack_lvl+0xf8/0x160 [ 221.909660][ T6428] dump_stack+0x1c/0x5c [ 221.910378][ T6428] sysfs_create_dir_ns+0x22c/0x24c [ 221.911260][ T6428] kobject_add_internal+0x590/0xc54 [ 221.912062][ T6428] kobject_init_and_add+0x118/0x17c [ 221.912829][ T6428] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.913490][ T6428] gfs2_fill_super+0xdac/0x19e0 [ 221.914285][ T6428] get_tree_bdev+0x358/0x544 [ 221.915043][ T6428] gfs2_get_tree+0x54/0x1b4 [ 221.915786][ T6428] vfs_get_tree+0x90/0x274 [ 221.916477][ T6428] do_new_mount+0x228/0x810 [ 221.917234][ T6428] path_mount+0x5b4/0x1000 [ 221.917962][ T6428] __arm64_sys_mount+0x514/0x5e4 [ 221.918729][ T6428] invoke_syscall+0x98/0x2b8 [ 221.919471][ T6428] el0_svc_common+0x138/0x258 [ 221.920161][ T6428] do_el0_svc+0x58/0x14c [ 221.920853][ T6428] el0_svc+0x78/0x1e0 [ 221.921506][ T6428] el0t_64_sync_handler+0xcc/0xe4 [ 221.922246][ T6428] el0t_64_sync+0x1a0/0x1a4 [ 221.923510][ T6428] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.925581][ T6428] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.110663][ T6430] loop1: detected capacity change from 0 to 32768 [ 222.163320][ T6430] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.164532][ T6430] CPU: 1 PID: 6430 Comm: syz.1.644 Not tainted 5.15.189-syzkaller #0 [ 222.165729][ T6430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 222.167205][ T6430] Call trace: [ 222.167674][ T6430] dump_backtrace+0x0/0x43c [ 222.168361][ T6430] show_stack+0x2c/0x3c [ 222.168992][ T6430] __dump_stack+0x30/0x40 [ 222.169737][ T6430] dump_stack_lvl+0xf8/0x160 [ 222.170497][ T6430] dump_stack+0x1c/0x5c [ 222.171170][ T6430] sysfs_create_dir_ns+0x22c/0x24c [ 222.171937][ T6430] kobject_add_internal+0x590/0xc54 [ 222.172823][ T6430] kobject_init_and_add+0x118/0x17c [ 222.173736][ T6430] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.174447][ T6430] gfs2_fill_super+0xdac/0x19e0 [ 222.175218][ T6430] get_tree_bdev+0x358/0x544 [ 222.175947][ T6430] gfs2_get_tree+0x54/0x1b4 [ 222.176662][ T6430] vfs_get_tree+0x90/0x274 [ 222.177331][ T6430] do_new_mount+0x228/0x810 [ 222.178000][ T6430] path_mount+0x5b4/0x1000 [ 222.178663][ T6430] __arm64_sys_mount+0x514/0x5e4 [ 222.179415][ T6430] invoke_syscall+0x98/0x2b8 [ 222.180132][ T6430] el0_svc_common+0x138/0x258 [ 222.180849][ T6430] do_el0_svc+0x58/0x14c [ 222.181489][ T6430] el0_svc+0x78/0x1e0 [ 222.182080][ T6430] el0t_64_sync_handler+0xcc/0xe4 [ 222.182909][ T6430] el0t_64_sync+0x1a0/0x1a4 [ 222.185656][ T6430] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.187588][ T6430] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.318418][ T6432] loop1: detected capacity change from 0 to 32768 [ 222.374028][ T6432] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.375242][ T6432] CPU: 1 PID: 6432 Comm: syz.1.645 Not tainted 5.15.189-syzkaller #0 [ 222.376554][ T6432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 222.378217][ T6432] Call trace: [ 222.378791][ T6432] dump_backtrace+0x0/0x43c [ 222.379503][ T6432] show_stack+0x2c/0x3c [ 222.380203][ T6432] __dump_stack+0x30/0x40 [ 222.380976][ T6432] dump_stack_lvl+0xf8/0x160 [ 222.381795][ T6432] dump_stack+0x1c/0x5c [ 222.382493][ T6432] sysfs_create_dir_ns+0x22c/0x24c [ 222.383318][ T6432] kobject_add_internal+0x590/0xc54 [ 222.384153][ T6432] kobject_init_and_add+0x118/0x17c [ 222.384995][ T6432] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.385767][ T6432] gfs2_fill_super+0xdac/0x19e0 [ 222.386513][ T6432] get_tree_bdev+0x358/0x544 [ 222.387227][ T6432] gfs2_get_tree+0x54/0x1b4 [ 222.387921][ T6432] vfs_get_tree+0x90/0x274 [ 222.388694][ T6432] do_new_mount+0x228/0x810 [ 222.389382][ T6432] path_mount+0x5b4/0x1000 [ 222.390052][ T6432] __arm64_sys_mount+0x514/0x5e4 [ 222.390756][ T6432] invoke_syscall+0x98/0x2b8 [ 222.391439][ T6432] el0_svc_common+0x138/0x258 [ 222.392132][ T6432] do_el0_svc+0x58/0x14c [ 222.392748][ T6432] el0_svc+0x78/0x1e0 [ 222.393316][ T6432] el0t_64_sync_handler+0xcc/0xe4 [ 222.394060][ T6432] el0t_64_sync+0x1a0/0x1a4 [ 222.396227][ T6432] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.398242][ T6432] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.529577][ T6434] loop1: detected capacity change from 0 to 32768 [ 222.584387][ T6434] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.585557][ T6434] CPU: 0 PID: 6434 Comm: syz.1.646 Not tainted 5.15.189-syzkaller #0 [ 222.586806][ T6434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 222.588459][ T6434] Call trace: [ 222.589003][ T6434] dump_backtrace+0x0/0x43c [ 222.589714][ T6434] show_stack+0x2c/0x3c [ 222.590368][ T6434] __dump_stack+0x30/0x40 [ 222.591021][ T6434] dump_stack_lvl+0xf8/0x160 [ 222.591841][ T6434] dump_stack+0x1c/0x5c [ 222.592582][ T6434] sysfs_create_dir_ns+0x22c/0x24c [ 222.593408][ T6434] kobject_add_internal+0x590/0xc54 [ 222.594216][ T6434] kobject_init_and_add+0x118/0x17c [ 222.595020][ T6434] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.595751][ T6434] gfs2_fill_super+0xdac/0x19e0 [ 222.596552][ T6434] get_tree_bdev+0x358/0x544 [ 222.597264][ T6434] gfs2_get_tree+0x54/0x1b4 [ 222.597937][ T6434] vfs_get_tree+0x90/0x274 [ 222.598707][ T6434] do_new_mount+0x228/0x810 [ 222.599494][ T6434] path_mount+0x5b4/0x1000 [ 222.600254][ T6434] __arm64_sys_mount+0x514/0x5e4 [ 222.601070][ T6434] invoke_syscall+0x98/0x2b8 [ 222.601774][ T6434] el0_svc_common+0x138/0x258 [ 222.602501][ T6434] do_el0_svc+0x58/0x14c [ 222.603107][ T6434] el0_svc+0x78/0x1e0 [ 222.603661][ T6434] el0t_64_sync_handler+0xcc/0xe4 [ 222.604455][ T6434] el0t_64_sync+0x1a0/0x1a4 [ 222.606685][ T6434] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.608718][ T6434] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.740095][ T6436] loop1: detected capacity change from 0 to 32768 [ 222.779853][ T6436] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.781028][ T6436] CPU: 0 PID: 6436 Comm: syz.1.647 Not tainted 5.15.189-syzkaller #0 [ 222.782269][ T6436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 222.783813][ T6436] Call trace: [ 222.784313][ T6436] dump_backtrace+0x0/0x43c [ 222.785025][ T6436] show_stack+0x2c/0x3c [ 222.785696][ T6436] __dump_stack+0x30/0x40 [ 222.786400][ T6436] dump_stack_lvl+0xf8/0x160 [ 222.787114][ T6436] dump_stack+0x1c/0x5c [ 222.787762][ T6436] sysfs_create_dir_ns+0x22c/0x24c [ 222.788484][ T6436] kobject_add_internal+0x590/0xc54 [ 222.789305][ T6436] kobject_init_and_add+0x118/0x17c [ 222.790162][ T6436] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.790925][ T6436] gfs2_fill_super+0xdac/0x19e0 [ 222.791664][ T6436] get_tree_bdev+0x358/0x544 [ 222.792338][ T6436] gfs2_get_tree+0x54/0x1b4 [ 222.793001][ T6436] vfs_get_tree+0x90/0x274 [ 222.793679][ T6436] do_new_mount+0x228/0x810 [ 222.794351][ T6436] path_mount+0x5b4/0x1000 [ 222.795021][ T6436] __arm64_sys_mount+0x514/0x5e4 [ 222.795764][ T6436] invoke_syscall+0x98/0x2b8 [ 222.796476][ T6436] el0_svc_common+0x138/0x258 [ 222.797199][ T6436] do_el0_svc+0x58/0x14c [ 222.797850][ T6436] el0_svc+0x78/0x1e0 [ 222.798508][ T6436] el0t_64_sync_handler+0xcc/0xe4 [ 222.799242][ T6436] el0t_64_sync+0x1a0/0x1a4 [ 222.801450][ T6436] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.803320][ T6436] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.932677][ T6438] loop1: detected capacity change from 0 to 32768 [ 222.980070][ T6438] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.981373][ T6438] CPU: 1 PID: 6438 Comm: syz.1.648 Not tainted 5.15.189-syzkaller #0 [ 222.982577][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 222.984056][ T6438] Call trace: [ 222.984537][ T6438] dump_backtrace+0x0/0x43c [ 222.985193][ T6438] show_stack+0x2c/0x3c [ 222.985816][ T6438] __dump_stack+0x30/0x40 [ 222.986447][ T6438] dump_stack_lvl+0xf8/0x160 [ 222.987144][ T6438] dump_stack+0x1c/0x5c [ 222.987778][ T6438] sysfs_create_dir_ns+0x22c/0x24c [ 222.988551][ T6438] kobject_add_internal+0x590/0xc54 [ 222.989336][ T6438] kobject_init_and_add+0x118/0x17c [ 222.990109][ T6438] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.990825][ T6438] gfs2_fill_super+0xdac/0x19e0 [ 222.991552][ T6438] get_tree_bdev+0x358/0x544 [ 222.992216][ T6438] gfs2_get_tree+0x54/0x1b4 [ 222.992982][ T6438] vfs_get_tree+0x90/0x274 [ 222.993704][ T6438] do_new_mount+0x228/0x810 [ 222.994474][ T6438] path_mount+0x5b4/0x1000 [ 222.995206][ T6438] __arm64_sys_mount+0x514/0x5e4 [ 222.996013][ T6438] invoke_syscall+0x98/0x2b8 [ 222.996733][ T6438] el0_svc_common+0x138/0x258 [ 222.997399][ T6438] do_el0_svc+0x58/0x14c [ 222.998010][ T6438] el0_svc+0x78/0x1e0 [ 222.998578][ T6438] el0t_64_sync_handler+0xcc/0xe4 [ 222.999303][ T6438] el0t_64_sync+0x1a0/0x1a4 [ 223.001531][ T6438] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.003432][ T6438] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.128339][ T5119] Bluetooth: hci2: command 0x0419 tx timeout [ 223.130500][ T6440] loop1: detected capacity change from 0 to 32768 [ 223.169495][ T6440] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.170727][ T6440] CPU: 1 PID: 6440 Comm: syz.1.649 Not tainted 5.15.189-syzkaller #0 [ 223.172063][ T6440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 223.173641][ T6440] Call trace: [ 223.174156][ T6440] dump_backtrace+0x0/0x43c [ 223.174923][ T6440] show_stack+0x2c/0x3c [ 223.175614][ T6440] __dump_stack+0x30/0x40 [ 223.176316][ T6440] dump_stack_lvl+0xf8/0x160 [ 223.177050][ T6440] dump_stack+0x1c/0x5c [ 223.177690][ T6440] sysfs_create_dir_ns+0x22c/0x24c [ 223.178467][ T6440] kobject_add_internal+0x590/0xc54 [ 223.179282][ T6440] kobject_init_and_add+0x118/0x17c [ 223.180153][ T6440] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.180970][ T6440] gfs2_fill_super+0xdac/0x19e0 [ 223.181811][ T6440] get_tree_bdev+0x358/0x544 [ 223.182570][ T6440] gfs2_get_tree+0x54/0x1b4 [ 223.183316][ T6440] vfs_get_tree+0x90/0x274 [ 223.183995][ T6440] do_new_mount+0x228/0x810 [ 223.184700][ T6440] path_mount+0x5b4/0x1000 [ 223.185385][ T6440] __arm64_sys_mount+0x514/0x5e4 [ 223.186160][ T6440] invoke_syscall+0x98/0x2b8 [ 223.186886][ T6440] el0_svc_common+0x138/0x258 [ 223.187613][ T6440] do_el0_svc+0x58/0x14c [ 223.188247][ T6440] el0_svc+0x78/0x1e0 [ 223.188852][ T6440] el0t_64_sync_handler+0xcc/0xe4 [ 223.189718][ T6440] el0t_64_sync+0x1a0/0x1a4 [ 223.192101][ T6440] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.193964][ T6440] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.415190][ T6442] loop1: detected capacity change from 0 to 32768 [ 223.453422][ T6442] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.455637][ T6442] CPU: 1 PID: 6442 Comm: syz.1.650 Not tainted 5.15.189-syzkaller #0 [ 223.456808][ T6442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 223.458328][ T6442] Call trace: [ 223.458851][ T6442] dump_backtrace+0x0/0x43c [ 223.459587][ T6442] show_stack+0x2c/0x3c [ 223.460243][ T6442] __dump_stack+0x30/0x40 [ 223.460952][ T6442] dump_stack_lvl+0xf8/0x160 [ 223.461649][ T6442] dump_stack+0x1c/0x5c [ 223.462302][ T6442] sysfs_create_dir_ns+0x22c/0x24c [ 223.463126][ T6442] kobject_add_internal+0x590/0xc54 [ 223.463964][ T6442] kobject_init_and_add+0x118/0x17c [ 223.464835][ T6442] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.465563][ T6442] gfs2_fill_super+0xdac/0x19e0 [ 223.466361][ T6442] get_tree_bdev+0x358/0x544 [ 223.467140][ T6442] gfs2_get_tree+0x54/0x1b4 [ 223.467858][ T6442] vfs_get_tree+0x90/0x274 [ 223.468567][ T6442] do_new_mount+0x228/0x810 [ 223.469319][ T6442] path_mount+0x5b4/0x1000 [ 223.470066][ T6442] __arm64_sys_mount+0x514/0x5e4 [ 223.470884][ T6442] invoke_syscall+0x98/0x2b8 [ 223.471647][ T6442] el0_svc_common+0x138/0x258 [ 223.472434][ T6442] do_el0_svc+0x58/0x14c [ 223.473150][ T6442] el0_svc+0x78/0x1e0 [ 223.473810][ T6442] el0t_64_sync_handler+0xcc/0xe4 [ 223.474662][ T6442] el0t_64_sync+0x1a0/0x1a4 [ 223.475903][ T6442] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.477742][ T6442] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.618992][ T6444] loop1: detected capacity change from 0 to 32768 [ 223.684468][ T6444] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.685685][ T6444] CPU: 1 PID: 6444 Comm: syz.1.651 Not tainted 5.15.189-syzkaller #0 [ 223.687021][ T6444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 223.688725][ T6444] Call trace: [ 223.689291][ T6444] dump_backtrace+0x0/0x43c [ 223.690086][ T6444] show_stack+0x2c/0x3c [ 223.690791][ T6444] __dump_stack+0x30/0x40 [ 223.691522][ T6444] dump_stack_lvl+0xf8/0x160 [ 223.692296][ T6444] dump_stack+0x1c/0x5c [ 223.693003][ T6444] sysfs_create_dir_ns+0x22c/0x24c [ 223.693850][ T6444] kobject_add_internal+0x590/0xc54 [ 223.694664][ T6444] kobject_init_and_add+0x118/0x17c [ 223.695440][ T6444] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.696170][ T6444] gfs2_fill_super+0xdac/0x19e0 [ 223.696921][ T6444] get_tree_bdev+0x358/0x544 [ 223.697553][ T6444] gfs2_get_tree+0x54/0x1b4 [ 223.698186][ T6444] vfs_get_tree+0x90/0x274 [ 223.698794][ T6444] do_new_mount+0x228/0x810 [ 223.699434][ T6444] path_mount+0x5b4/0x1000 [ 223.700064][ T6444] __arm64_sys_mount+0x514/0x5e4 [ 223.700758][ T6444] invoke_syscall+0x98/0x2b8 [ 223.701400][ T6444] el0_svc_common+0x138/0x258 [ 223.702074][ T6444] do_el0_svc+0x58/0x14c [ 223.702741][ T6444] el0_svc+0x78/0x1e0 [ 223.703319][ T6444] el0t_64_sync_handler+0xcc/0xe4 [ 223.704143][ T6444] el0t_64_sync+0x1a0/0x1a4 [ 223.706343][ T6444] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.709543][ T6444] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.877308][ T6446] loop1: detected capacity change from 0 to 32768 [ 223.933698][ T6446] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.934986][ T6446] CPU: 1 PID: 6446 Comm: syz.1.652 Not tainted 5.15.189-syzkaller #0 [ 223.936154][ T6446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 223.937575][ T6446] Call trace: [ 223.938010][ T6446] dump_backtrace+0x0/0x43c [ 223.938630][ T6446] show_stack+0x2c/0x3c [ 223.939236][ T6446] __dump_stack+0x30/0x40 [ 223.939867][ T6446] dump_stack_lvl+0xf8/0x160 [ 223.940549][ T6446] dump_stack+0x1c/0x5c [ 223.941151][ T6446] sysfs_create_dir_ns+0x22c/0x24c [ 223.941891][ T6446] kobject_add_internal+0x590/0xc54 [ 223.942642][ T6446] kobject_init_and_add+0x118/0x17c [ 223.943404][ T6446] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.944119][ T6446] gfs2_fill_super+0xdac/0x19e0 [ 223.944846][ T6446] get_tree_bdev+0x358/0x544 [ 223.945514][ T6446] gfs2_get_tree+0x54/0x1b4 [ 223.946155][ T6446] vfs_get_tree+0x90/0x274 [ 223.946797][ T6446] do_new_mount+0x228/0x810 [ 223.947532][ T6446] path_mount+0x5b4/0x1000 [ 223.948273][ T6446] __arm64_sys_mount+0x514/0x5e4 [ 223.949100][ T6446] invoke_syscall+0x98/0x2b8 [ 223.949864][ T6446] el0_svc_common+0x138/0x258 [ 223.950621][ T6446] do_el0_svc+0x58/0x14c [ 223.951311][ T6446] el0_svc+0x78/0x1e0 [ 223.951947][ T6446] el0t_64_sync_handler+0xcc/0xe4 [ 223.952758][ T6446] el0t_64_sync+0x1a0/0x1a4 [ 223.954880][ T6446] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.956770][ T6446] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.094553][ T6448] loop1: detected capacity change from 0 to 32768 [ 224.147820][ T6448] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.149176][ T6448] CPU: 0 PID: 6448 Comm: syz.1.653 Not tainted 5.15.189-syzkaller #0 [ 224.150422][ T6448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.151916][ T6448] Call trace: [ 224.152437][ T6448] dump_backtrace+0x0/0x43c [ 224.153117][ T6448] show_stack+0x2c/0x3c [ 224.153746][ T6448] __dump_stack+0x30/0x40 [ 224.154422][ T6448] dump_stack_lvl+0xf8/0x160 [ 224.155162][ T6448] dump_stack+0x1c/0x5c [ 224.155780][ T6448] sysfs_create_dir_ns+0x22c/0x24c [ 224.156465][ T6448] kobject_add_internal+0x590/0xc54 [ 224.157194][ T6448] kobject_init_and_add+0x118/0x17c [ 224.157911][ T6448] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.158721][ T6448] gfs2_fill_super+0xdac/0x19e0 [ 224.159448][ T6448] get_tree_bdev+0x358/0x544 [ 224.160141][ T6448] gfs2_get_tree+0x54/0x1b4 [ 224.160880][ T6448] vfs_get_tree+0x90/0x274 [ 224.161579][ T6448] do_new_mount+0x228/0x810 [ 224.162301][ T6448] path_mount+0x5b4/0x1000 [ 224.163017][ T6448] __arm64_sys_mount+0x514/0x5e4 [ 224.163825][ T6448] invoke_syscall+0x98/0x2b8 [ 224.164495][ T6448] el0_svc_common+0x138/0x258 [ 224.165228][ T6448] do_el0_svc+0x58/0x14c [ 224.165892][ T6448] el0_svc+0x78/0x1e0 [ 224.166503][ T6448] el0t_64_sync_handler+0xcc/0xe4 [ 224.167237][ T6448] el0t_64_sync+0x1a0/0x1a4 [ 224.169413][ T6448] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.171616][ T6448] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.300369][ T6450] loop1: detected capacity change from 0 to 32768 [ 224.306895][ T6450] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.308208][ T6450] CPU: 1 PID: 6450 Comm: syz.1.654 Not tainted 5.15.189-syzkaller #0 [ 224.309558][ T6450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.311143][ T6450] Call trace: [ 224.311643][ T6450] dump_backtrace+0x0/0x43c [ 224.312382][ T6450] show_stack+0x2c/0x3c [ 224.313081][ T6450] __dump_stack+0x30/0x40 [ 224.313783][ T6450] dump_stack_lvl+0xf8/0x160 [ 224.314579][ T6450] dump_stack+0x1c/0x5c [ 224.315222][ T6450] sysfs_create_dir_ns+0x22c/0x24c [ 224.316111][ T6450] kobject_add_internal+0x590/0xc54 [ 224.317015][ T6450] kobject_init_and_add+0x118/0x17c [ 224.317869][ T6450] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.318689][ T6450] gfs2_fill_super+0xdac/0x19e0 [ 224.319486][ T6450] get_tree_bdev+0x358/0x544 [ 224.320269][ T6450] gfs2_get_tree+0x54/0x1b4 [ 224.320969][ T6450] vfs_get_tree+0x90/0x274 [ 224.321662][ T6450] do_new_mount+0x228/0x810 [ 224.322410][ T6450] path_mount+0x5b4/0x1000 [ 224.323160][ T6450] __arm64_sys_mount+0x514/0x5e4 [ 224.323991][ T6450] invoke_syscall+0x98/0x2b8 [ 224.324774][ T6450] el0_svc_common+0x138/0x258 [ 224.325568][ T6450] do_el0_svc+0x58/0x14c [ 224.326301][ T6450] el0_svc+0x78/0x1e0 [ 224.326975][ T6450] el0t_64_sync_handler+0xcc/0xe4 [ 224.327821][ T6450] el0t_64_sync+0x1a0/0x1a4 [ 224.330359][ T6450] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.332389][ T6450] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.458240][ T6452] loop1: detected capacity change from 0 to 32768 [ 224.499544][ T6452] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.500681][ T6452] CPU: 1 PID: 6452 Comm: syz.1.655 Not tainted 5.15.189-syzkaller #0 [ 224.501820][ T6452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.503171][ T6452] Call trace: [ 224.503637][ T6452] dump_backtrace+0x0/0x43c [ 224.504274][ T6452] show_stack+0x2c/0x3c [ 224.504850][ T6452] __dump_stack+0x30/0x40 [ 224.505465][ T6452] dump_stack_lvl+0xf8/0x160 [ 224.506112][ T6452] dump_stack+0x1c/0x5c [ 224.506691][ T6452] sysfs_create_dir_ns+0x22c/0x24c [ 224.507482][ T6452] kobject_add_internal+0x590/0xc54 [ 224.508239][ T6452] kobject_init_and_add+0x118/0x17c [ 224.509029][ T6452] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.509745][ T6452] gfs2_fill_super+0xdac/0x19e0 [ 224.510457][ T6452] get_tree_bdev+0x358/0x544 [ 224.511144][ T6452] gfs2_get_tree+0x54/0x1b4 [ 224.511808][ T6452] vfs_get_tree+0x90/0x274 [ 224.512474][ T6452] do_new_mount+0x228/0x810 [ 224.513132][ T6452] path_mount+0x5b4/0x1000 [ 224.513759][ T6452] __arm64_sys_mount+0x514/0x5e4 [ 224.514439][ T6452] invoke_syscall+0x98/0x2b8 [ 224.515088][ T6452] el0_svc_common+0x138/0x258 [ 224.515760][ T6452] do_el0_svc+0x58/0x14c [ 224.516436][ T6452] el0_svc+0x78/0x1e0 [ 224.517060][ T6452] el0t_64_sync_handler+0xcc/0xe4 [ 224.517798][ T6452] el0t_64_sync+0x1a0/0x1a4 [ 224.518936][ T6452] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.520965][ T6452] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.676383][ T6454] loop1: detected capacity change from 0 to 32768 [ 224.729664][ T6454] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.730830][ T6454] CPU: 1 PID: 6454 Comm: syz.1.656 Not tainted 5.15.189-syzkaller #0 [ 224.732000][ T6454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.733341][ T6454] Call trace: [ 224.733835][ T6454] dump_backtrace+0x0/0x43c [ 224.734515][ T6454] show_stack+0x2c/0x3c [ 224.735141][ T6454] __dump_stack+0x30/0x40 [ 224.735795][ T6454] dump_stack_lvl+0xf8/0x160 [ 224.736504][ T6454] dump_stack+0x1c/0x5c [ 224.737124][ T6454] sysfs_create_dir_ns+0x22c/0x24c [ 224.737965][ T6454] kobject_add_internal+0x590/0xc54 [ 224.738835][ T6454] kobject_init_and_add+0x118/0x17c [ 224.739696][ T6454] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.740501][ T6454] gfs2_fill_super+0xdac/0x19e0 [ 224.741349][ T6454] get_tree_bdev+0x358/0x544 [ 224.742149][ T6454] gfs2_get_tree+0x54/0x1b4 [ 224.742912][ T6454] vfs_get_tree+0x90/0x274 [ 224.743654][ T6454] do_new_mount+0x228/0x810 [ 224.744404][ T6454] path_mount+0x5b4/0x1000 [ 224.745151][ T6454] __arm64_sys_mount+0x514/0x5e4 [ 224.745930][ T6454] invoke_syscall+0x98/0x2b8 [ 224.746657][ T6454] el0_svc_common+0x138/0x258 [ 224.747377][ T6454] do_el0_svc+0x58/0x14c [ 224.748032][ T6454] el0_svc+0x78/0x1e0 [ 224.748649][ T6454] el0t_64_sync_handler+0xcc/0xe4 [ 224.749432][ T6454] el0t_64_sync+0x1a0/0x1a4 [ 224.750405][ T6454] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.752400][ T6454] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.883981][ T6456] loop1: detected capacity change from 0 to 32768 [ 224.891985][ T6456] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.893149][ T6456] CPU: 0 PID: 6456 Comm: syz.1.657 Not tainted 5.15.189-syzkaller #0 [ 224.894367][ T6456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.896008][ T6456] Call trace: [ 224.896529][ T6456] dump_backtrace+0x0/0x43c [ 224.897215][ T6456] show_stack+0x2c/0x3c [ 224.897874][ T6456] __dump_stack+0x30/0x40 [ 224.898564][ T6456] dump_stack_lvl+0xf8/0x160 [ 224.899362][ T6456] dump_stack+0x1c/0x5c [ 224.900023][ T6456] sysfs_create_dir_ns+0x22c/0x24c [ 224.900868][ T6456] kobject_add_internal+0x590/0xc54 [ 224.901713][ T6456] kobject_init_and_add+0x118/0x17c [ 224.902572][ T6456] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.903339][ T6456] gfs2_fill_super+0xdac/0x19e0 [ 224.904090][ T6456] get_tree_bdev+0x358/0x544 [ 224.904778][ T6456] gfs2_get_tree+0x54/0x1b4 [ 224.905454][ T6456] vfs_get_tree+0x90/0x274 [ 224.906129][ T6456] do_new_mount+0x228/0x810 [ 224.906804][ T6456] path_mount+0x5b4/0x1000 [ 224.907442][ T6456] __arm64_sys_mount+0x514/0x5e4 [ 224.908177][ T6456] invoke_syscall+0x98/0x2b8 [ 224.908852][ T6456] el0_svc_common+0x138/0x258 [ 224.909517][ T6456] do_el0_svc+0x58/0x14c [ 224.910123][ T6456] el0_svc+0x78/0x1e0 [ 224.910786][ T6456] el0t_64_sync_handler+0xcc/0xe4 [ 224.911601][ T6456] el0t_64_sync+0x1a0/0x1a4 [ 224.913788][ T6456] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.915911][ T6456] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.047593][ T6458] loop1: detected capacity change from 0 to 32768 [ 225.054450][ T6458] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.055616][ T6458] CPU: 1 PID: 6458 Comm: syz.1.658 Not tainted 5.15.189-syzkaller #0 [ 225.056758][ T6458] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 225.058153][ T6458] Call trace: [ 225.058623][ T6458] dump_backtrace+0x0/0x43c [ 225.059288][ T6458] show_stack+0x2c/0x3c [ 225.060002][ T6458] __dump_stack+0x30/0x40 [ 225.060679][ T6458] dump_stack_lvl+0xf8/0x160 [ 225.061394][ T6458] dump_stack+0x1c/0x5c [ 225.062049][ T6458] sysfs_create_dir_ns+0x22c/0x24c [ 225.062819][ T6458] kobject_add_internal+0x590/0xc54 [ 225.063618][ T6458] kobject_init_and_add+0x118/0x17c [ 225.064395][ T6458] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.065100][ T6458] gfs2_fill_super+0xdac/0x19e0 [ 225.065825][ T6458] get_tree_bdev+0x358/0x544 [ 225.066506][ T6458] gfs2_get_tree+0x54/0x1b4 [ 225.067257][ T6458] vfs_get_tree+0x90/0x274 [ 225.068017][ T6458] do_new_mount+0x228/0x810 [ 225.068793][ T6458] path_mount+0x5b4/0x1000 [ 225.069505][ T6458] __arm64_sys_mount+0x514/0x5e4 [ 225.070299][ T6458] invoke_syscall+0x98/0x2b8 [ 225.071081][ T6458] el0_svc_common+0x138/0x258 [ 225.071856][ T6458] do_el0_svc+0x58/0x14c [ 225.072529][ T6458] el0_svc+0x78/0x1e0 [ 225.073156][ T6458] el0t_64_sync_handler+0xcc/0xe4 [ 225.073936][ T6458] el0t_64_sync+0x1a0/0x1a4 [ 225.074979][ T6458] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.077135][ T6458] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.203643][ T6460] loop1: detected capacity change from 0 to 32768 [ 225.252309][ T6460] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.253496][ T6460] CPU: 1 PID: 6460 Comm: syz.1.659 Not tainted 5.15.189-syzkaller #0 [ 225.254741][ T6460] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 225.256356][ T6460] Call trace: [ 225.256884][ T6460] dump_backtrace+0x0/0x43c [ 225.257653][ T6460] show_stack+0x2c/0x3c [ 225.258306][ T6460] __dump_stack+0x30/0x40 [ 225.259063][ T6460] dump_stack_lvl+0xf8/0x160 [ 225.259885][ T6460] dump_stack+0x1c/0x5c [ 225.260589][ T6460] sysfs_create_dir_ns+0x22c/0x24c [ 225.261389][ T6460] kobject_add_internal+0x590/0xc54 [ 225.262211][ T6460] kobject_init_and_add+0x118/0x17c [ 225.263010][ T6460] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.263750][ T6460] gfs2_fill_super+0xdac/0x19e0 [ 225.264464][ T6460] get_tree_bdev+0x358/0x544 [ 225.265126][ T6460] gfs2_get_tree+0x54/0x1b4 [ 225.265756][ T6460] vfs_get_tree+0x90/0x274 [ 225.266378][ T6460] do_new_mount+0x228/0x810 [ 225.267016][ T6460] path_mount+0x5b4/0x1000 [ 225.267636][ T6460] __arm64_sys_mount+0x514/0x5e4 [ 225.268343][ T6460] invoke_syscall+0x98/0x2b8 [ 225.269005][ T6460] el0_svc_common+0x138/0x258 [ 225.269671][ T6460] do_el0_svc+0x58/0x14c [ 225.270260][ T6460] el0_svc+0x78/0x1e0 [ 225.270854][ T6460] el0t_64_sync_handler+0xcc/0xe4 [ 225.271666][ T6460] el0t_64_sync+0x1a0/0x1a4 [ 225.273137][ T6460] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.275154][ T6460] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.409064][ T6462] loop1: detected capacity change from 0 to 32768 [ 225.459695][ T6462] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.460878][ T6462] CPU: 0 PID: 6462 Comm: syz.1.660 Not tainted 5.15.189-syzkaller #0 [ 225.462075][ T6462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 225.463543][ T6462] Call trace: [ 225.464027][ T6462] dump_backtrace+0x0/0x43c [ 225.464741][ T6462] show_stack+0x2c/0x3c [ 225.465337][ T6462] __dump_stack+0x30/0x40 [ 225.465980][ T6462] dump_stack_lvl+0xf8/0x160 [ 225.466616][ T6462] dump_stack+0x1c/0x5c [ 225.467336][ T6462] sysfs_create_dir_ns+0x22c/0x24c [ 225.468223][ T6462] kobject_add_internal+0x590/0xc54 [ 225.469131][ T6462] kobject_init_and_add+0x118/0x17c [ 225.469962][ T6462] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.470775][ T6462] gfs2_fill_super+0xdac/0x19e0 [ 225.471562][ T6462] get_tree_bdev+0x358/0x544 [ 225.472344][ T6462] gfs2_get_tree+0x54/0x1b4 [ 225.473092][ T6462] vfs_get_tree+0x90/0x274 [ 225.473815][ T6462] do_new_mount+0x228/0x810 [ 225.474557][ T6462] path_mount+0x5b4/0x1000 [ 225.475290][ T6462] __arm64_sys_mount+0x514/0x5e4 [ 225.476069][ T6462] invoke_syscall+0x98/0x2b8 [ 225.476779][ T6462] el0_svc_common+0x138/0x258 [ 225.477496][ T6462] do_el0_svc+0x58/0x14c [ 225.478146][ T6462] el0_svc+0x78/0x1e0 [ 225.478763][ T6462] el0t_64_sync_handler+0xcc/0xe4 [ 225.479624][ T6462] el0t_64_sync+0x1a0/0x1a4 [ 225.480557][ T6462] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.482741][ T6462] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.611511][ T6464] loop1: detected capacity change from 0 to 32768 [ 225.703754][ T6464] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.705043][ T6464] CPU: 1 PID: 6464 Comm: syz.1.661 Not tainted 5.15.189-syzkaller #0 [ 225.706380][ T6464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 225.708050][ T6464] Call trace: [ 225.708596][ T6464] dump_backtrace+0x0/0x43c [ 225.709354][ T6464] show_stack+0x2c/0x3c [ 225.710042][ T6464] __dump_stack+0x30/0x40 [ 225.710732][ T6464] dump_stack_lvl+0xf8/0x160 [ 225.711486][ T6464] dump_stack+0x1c/0x5c [ 225.712177][ T6464] sysfs_create_dir_ns+0x22c/0x24c [ 225.712968][ T6464] kobject_add_internal+0x590/0xc54 [ 225.713790][ T6464] kobject_init_and_add+0x118/0x17c [ 225.714604][ T6464] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.715399][ T6464] gfs2_fill_super+0xdac/0x19e0 [ 225.716217][ T6464] get_tree_bdev+0x358/0x544 [ 225.716997][ T6464] gfs2_get_tree+0x54/0x1b4 [ 225.717763][ T6464] vfs_get_tree+0x90/0x274 [ 225.718511][ T6464] do_new_mount+0x228/0x810 [ 225.719246][ T6464] path_mount+0x5b4/0x1000 [ 225.719957][ T6464] __arm64_sys_mount+0x514/0x5e4 [ 225.720807][ T6464] invoke_syscall+0x98/0x2b8 [ 225.721546][ T6464] el0_svc_common+0x138/0x258 [ 225.722281][ T6464] do_el0_svc+0x58/0x14c [ 225.722971][ T6464] el0_svc+0x78/0x1e0 [ 225.723601][ T6464] el0t_64_sync_handler+0xcc/0xe4 [ 225.724404][ T6464] el0t_64_sync+0x1a0/0x1a4 [ 225.726985][ T6464] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.729025][ T6464] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.856778][ T6466] loop1: detected capacity change from 0 to 32768 [ 225.889543][ T6466] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.890713][ T6466] CPU: 1 PID: 6466 Comm: syz.1.662 Not tainted 5.15.189-syzkaller #0 [ 225.892013][ T6466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 225.893617][ T6466] Call trace: [ 225.894128][ T6466] dump_backtrace+0x0/0x43c [ 225.894818][ T6466] show_stack+0x2c/0x3c [ 225.895402][ T6466] __dump_stack+0x30/0x40 [ 225.896112][ T6466] dump_stack_lvl+0xf8/0x160 [ 225.896859][ T6466] dump_stack+0x1c/0x5c [ 225.897554][ T6466] sysfs_create_dir_ns+0x22c/0x24c [ 225.898417][ T6466] kobject_add_internal+0x590/0xc54 [ 225.899214][ T6466] kobject_init_and_add+0x118/0x17c [ 225.900108][ T6466] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.900905][ T6466] gfs2_fill_super+0xdac/0x19e0 [ 225.901735][ T6466] get_tree_bdev+0x358/0x544 [ 225.902512][ T6466] gfs2_get_tree+0x54/0x1b4 [ 225.903291][ T6466] vfs_get_tree+0x90/0x274 [ 225.904012][ T6466] do_new_mount+0x228/0x810 [ 225.904730][ T6466] path_mount+0x5b4/0x1000 [ 225.905416][ T6466] __arm64_sys_mount+0x514/0x5e4 [ 225.906088][ T6466] invoke_syscall+0x98/0x2b8 [ 225.906737][ T6466] el0_svc_common+0x138/0x258 [ 225.907428][ T6466] do_el0_svc+0x58/0x14c [ 225.908043][ T6466] el0_svc+0x78/0x1e0 [ 225.908587][ T6466] el0t_64_sync_handler+0xcc/0xe4 [ 225.909315][ T6466] el0t_64_sync+0x1a0/0x1a4 [ 225.911471][ T6466] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.913438][ T6466] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.040568][ T6468] loop1: detected capacity change from 0 to 32768 [ 226.083811][ T6468] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.084996][ T6468] CPU: 0 PID: 6468 Comm: syz.1.663 Not tainted 5.15.189-syzkaller #0 [ 226.086219][ T6468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.087700][ T6468] Call trace: [ 226.088167][ T6468] dump_backtrace+0x0/0x43c [ 226.088939][ T6468] show_stack+0x2c/0x3c [ 226.089653][ T6468] __dump_stack+0x30/0x40 [ 226.090391][ T6468] dump_stack_lvl+0xf8/0x160 [ 226.091151][ T6468] dump_stack+0x1c/0x5c [ 226.091851][ T6468] sysfs_create_dir_ns+0x22c/0x24c [ 226.092701][ T6468] kobject_add_internal+0x590/0xc54 [ 226.093542][ T6468] kobject_init_and_add+0x118/0x17c [ 226.094367][ T6468] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.095115][ T6468] gfs2_fill_super+0xdac/0x19e0 [ 226.095852][ T6468] get_tree_bdev+0x358/0x544 [ 226.096568][ T6468] gfs2_get_tree+0x54/0x1b4 [ 226.097212][ T6468] vfs_get_tree+0x90/0x274 [ 226.097861][ T6468] do_new_mount+0x228/0x810 [ 226.098509][ T6468] path_mount+0x5b4/0x1000 [ 226.099158][ T6468] __arm64_sys_mount+0x514/0x5e4 [ 226.099989][ T6468] invoke_syscall+0x98/0x2b8 [ 226.100730][ T6468] el0_svc_common+0x138/0x258 [ 226.101488][ T6468] do_el0_svc+0x58/0x14c [ 226.102169][ T6468] el0_svc+0x78/0x1e0 [ 226.102823][ T6468] el0t_64_sync_handler+0xcc/0xe4 [ 226.103642][ T6468] el0t_64_sync+0x1a0/0x1a4 [ 226.104624][ T6468] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.106507][ T6468] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.236353][ T6470] loop1: detected capacity change from 0 to 32768 [ 226.244326][ T6470] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.245605][ T6470] CPU: 0 PID: 6470 Comm: syz.1.664 Not tainted 5.15.189-syzkaller #0 [ 226.246804][ T6470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.248195][ T6470] Call trace: [ 226.248667][ T6470] dump_backtrace+0x0/0x43c [ 226.249332][ T6470] show_stack+0x2c/0x3c [ 226.249929][ T6470] __dump_stack+0x30/0x40 [ 226.250534][ T6470] dump_stack_lvl+0xf8/0x160 [ 226.251236][ T6470] dump_stack+0x1c/0x5c [ 226.251870][ T6470] sysfs_create_dir_ns+0x22c/0x24c [ 226.252658][ T6470] kobject_add_internal+0x590/0xc54 [ 226.253449][ T6470] kobject_init_and_add+0x118/0x17c [ 226.254280][ T6470] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.255034][ T6470] gfs2_fill_super+0xdac/0x19e0 [ 226.255763][ T6470] get_tree_bdev+0x358/0x544 [ 226.256492][ T6470] gfs2_get_tree+0x54/0x1b4 [ 226.257201][ T6470] vfs_get_tree+0x90/0x274 [ 226.257873][ T6470] do_new_mount+0x228/0x810 [ 226.258510][ T6470] path_mount+0x5b4/0x1000 [ 226.259120][ T6470] __arm64_sys_mount+0x514/0x5e4 [ 226.259796][ T6470] invoke_syscall+0x98/0x2b8 [ 226.260432][ T6470] el0_svc_common+0x138/0x258 [ 226.261158][ T6470] do_el0_svc+0x58/0x14c [ 226.261829][ T6470] el0_svc+0x78/0x1e0 [ 226.262522][ T6470] el0t_64_sync_handler+0xcc/0xe4 [ 226.263339][ T6470] el0t_64_sync+0x1a0/0x1a4 [ 226.264286][ T6470] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.266280][ T6470] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.399774][ T6472] loop1: detected capacity change from 0 to 32768 [ 226.407014][ T6472] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.408221][ T6472] CPU: 1 PID: 6472 Comm: syz.1.665 Not tainted 5.15.189-syzkaller #0 [ 226.409527][ T6472] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.411155][ T6472] Call trace: [ 226.411663][ T6472] dump_backtrace+0x0/0x43c [ 226.412385][ T6472] show_stack+0x2c/0x3c [ 226.413053][ T6472] __dump_stack+0x30/0x40 [ 226.413750][ T6472] dump_stack_lvl+0xf8/0x160 [ 226.414473][ T6472] dump_stack+0x1c/0x5c [ 226.415152][ T6472] sysfs_create_dir_ns+0x22c/0x24c [ 226.415950][ T6472] kobject_add_internal+0x590/0xc54 [ 226.416775][ T6472] kobject_init_and_add+0x118/0x17c [ 226.417602][ T6472] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.418381][ T6472] gfs2_fill_super+0xdac/0x19e0 [ 226.419110][ T6472] get_tree_bdev+0x358/0x544 [ 226.419813][ T6472] gfs2_get_tree+0x54/0x1b4 [ 226.420463][ T6472] vfs_get_tree+0x90/0x274 [ 226.421178][ T6472] do_new_mount+0x228/0x810 [ 226.421873][ T6472] path_mount+0x5b4/0x1000 [ 226.422563][ T6472] __arm64_sys_mount+0x514/0x5e4 [ 226.423285][ T6472] invoke_syscall+0x98/0x2b8 [ 226.423991][ T6472] el0_svc_common+0x138/0x258 [ 226.424708][ T6472] do_el0_svc+0x58/0x14c [ 226.425378][ T6472] el0_svc+0x78/0x1e0 [ 226.426030][ T6472] el0t_64_sync_handler+0xcc/0xe4 [ 226.426832][ T6472] el0t_64_sync+0x1a0/0x1a4 [ 226.427789][ T6472] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.429930][ T6472] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.554182][ T6474] loop1: detected capacity change from 0 to 32768 [ 226.592564][ T6474] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.593761][ T6474] CPU: 1 PID: 6474 Comm: syz.1.666 Not tainted 5.15.189-syzkaller #0 [ 226.595017][ T6474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.596657][ T6474] Call trace: [ 226.597150][ T6474] dump_backtrace+0x0/0x43c [ 226.597825][ T6474] show_stack+0x2c/0x3c [ 226.598442][ T6474] __dump_stack+0x30/0x40 [ 226.599095][ T6474] dump_stack_lvl+0xf8/0x160 [ 226.599874][ T6474] dump_stack+0x1c/0x5c [ 226.600531][ T6474] sysfs_create_dir_ns+0x22c/0x24c [ 226.601353][ T6474] kobject_add_internal+0x590/0xc54 [ 226.602235][ T6474] kobject_init_and_add+0x118/0x17c [ 226.603088][ T6474] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.603865][ T6474] gfs2_fill_super+0xdac/0x19e0 [ 226.604665][ T6474] get_tree_bdev+0x358/0x544 [ 226.605441][ T6474] gfs2_get_tree+0x54/0x1b4 [ 226.606152][ T6474] vfs_get_tree+0x90/0x274 [ 226.606825][ T6474] do_new_mount+0x228/0x810 [ 226.607523][ T6474] path_mount+0x5b4/0x1000 [ 226.608222][ T6474] __arm64_sys_mount+0x514/0x5e4 [ 226.609039][ T6474] invoke_syscall+0x98/0x2b8 [ 226.609759][ T6474] el0_svc_common+0x138/0x258 [ 226.610464][ T6474] do_el0_svc+0x58/0x14c [ 226.611120][ T6474] el0_svc+0x78/0x1e0 [ 226.611738][ T6474] el0t_64_sync_handler+0xcc/0xe4 [ 226.612592][ T6474] el0t_64_sync+0x1a0/0x1a4 [ 226.613715][ T6474] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.615878][ T6474] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:46 executed programs: 653 [ 226.740456][ T6476] loop1: detected capacity change from 0 to 32768 [ 226.769544][ T6476] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.770742][ T6476] CPU: 0 PID: 6476 Comm: syz.1.667 Not tainted 5.15.189-syzkaller #0 [ 226.772061][ T6476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.773753][ T6476] Call trace: [ 226.774307][ T6476] dump_backtrace+0x0/0x43c [ 226.775097][ T6476] show_stack+0x2c/0x3c [ 226.775779][ T6476] __dump_stack+0x30/0x40 [ 226.776465][ T6476] dump_stack_lvl+0xf8/0x160 [ 226.777218][ T6476] dump_stack+0x1c/0x5c [ 226.777927][ T6476] sysfs_create_dir_ns+0x22c/0x24c [ 226.778806][ T6476] kobject_add_internal+0x590/0xc54 [ 226.779697][ T6476] kobject_init_and_add+0x118/0x17c [ 226.780547][ T6476] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.781360][ T6476] gfs2_fill_super+0xdac/0x19e0 [ 226.782182][ T6476] get_tree_bdev+0x358/0x544 [ 226.782896][ T6476] gfs2_get_tree+0x54/0x1b4 [ 226.783579][ T6476] vfs_get_tree+0x90/0x274 [ 226.784268][ T6476] do_new_mount+0x228/0x810 [ 226.784998][ T6476] path_mount+0x5b4/0x1000 [ 226.785733][ T6476] __arm64_sys_mount+0x514/0x5e4 [ 226.786537][ T6476] invoke_syscall+0x98/0x2b8 [ 226.787278][ T6476] el0_svc_common+0x138/0x258 [ 226.788097][ T6476] do_el0_svc+0x58/0x14c [ 226.788837][ T6476] el0_svc+0x78/0x1e0 [ 226.789522][ T6476] el0t_64_sync_handler+0xcc/0xe4 [ 226.790377][ T6476] el0t_64_sync+0x1a0/0x1a4 [ 226.792755][ T6476] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.794611][ T6476] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.968542][ T6478] loop1: detected capacity change from 0 to 32768 [ 227.019589][ T6478] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.020672][ T6478] CPU: 0 PID: 6478 Comm: syz.1.668 Not tainted 5.15.189-syzkaller #0 [ 227.021893][ T6478] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.023348][ T6478] Call trace: [ 227.023828][ T6478] dump_backtrace+0x0/0x43c [ 227.024471][ T6478] show_stack+0x2c/0x3c [ 227.025100][ T6478] __dump_stack+0x30/0x40 [ 227.025733][ T6478] dump_stack_lvl+0xf8/0x160 [ 227.026400][ T6478] dump_stack+0x1c/0x5c [ 227.027008][ T6478] sysfs_create_dir_ns+0x22c/0x24c [ 227.027762][ T6478] kobject_add_internal+0x590/0xc54 [ 227.028523][ T6478] kobject_init_and_add+0x118/0x17c [ 227.029298][ T6478] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.029969][ T6478] gfs2_fill_super+0xdac/0x19e0 [ 227.030653][ T6478] get_tree_bdev+0x358/0x544 [ 227.031295][ T6478] gfs2_get_tree+0x54/0x1b4 [ 227.031946][ T6478] vfs_get_tree+0x90/0x274 [ 227.032592][ T6478] do_new_mount+0x228/0x810 [ 227.033244][ T6478] path_mount+0x5b4/0x1000 [ 227.033879][ T6478] __arm64_sys_mount+0x514/0x5e4 [ 227.034585][ T6478] invoke_syscall+0x98/0x2b8 [ 227.035289][ T6478] el0_svc_common+0x138/0x258 [ 227.036045][ T6478] do_el0_svc+0x58/0x14c [ 227.036674][ T6478] el0_svc+0x78/0x1e0 [ 227.037251][ T6478] el0t_64_sync_handler+0xcc/0xe4 [ 227.037964][ T6478] el0t_64_sync+0x1a0/0x1a4 [ 227.040430][ T6478] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.042519][ T6478] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.176640][ T6480] loop1: detected capacity change from 0 to 32768 [ 227.229616][ T6480] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.230876][ T6480] CPU: 0 PID: 6480 Comm: syz.1.669 Not tainted 5.15.189-syzkaller #0 [ 227.232150][ T6480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.233869][ T6480] Call trace: [ 227.234415][ T6480] dump_backtrace+0x0/0x43c [ 227.235202][ T6480] show_stack+0x2c/0x3c [ 227.235930][ T6480] __dump_stack+0x30/0x40 [ 227.236685][ T6480] dump_stack_lvl+0xf8/0x160 [ 227.237483][ T6480] dump_stack+0x1c/0x5c [ 227.238144][ T6480] sysfs_create_dir_ns+0x22c/0x24c [ 227.238919][ T6480] kobject_add_internal+0x590/0xc54 [ 227.239811][ T6480] kobject_init_and_add+0x118/0x17c [ 227.240595][ T6480] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.241287][ T6480] gfs2_fill_super+0xdac/0x19e0 [ 227.241970][ T6480] get_tree_bdev+0x358/0x544 [ 227.242626][ T6480] gfs2_get_tree+0x54/0x1b4 [ 227.243270][ T6480] vfs_get_tree+0x90/0x274 [ 227.243917][ T6480] do_new_mount+0x228/0x810 [ 227.244568][ T6480] path_mount+0x5b4/0x1000 [ 227.245212][ T6480] __arm64_sys_mount+0x514/0x5e4 [ 227.245915][ T6480] invoke_syscall+0x98/0x2b8 [ 227.246572][ T6480] el0_svc_common+0x138/0x258 [ 227.247245][ T6480] do_el0_svc+0x58/0x14c [ 227.247858][ T6480] el0_svc+0x78/0x1e0 [ 227.248428][ T6480] el0t_64_sync_handler+0xcc/0xe4 [ 227.249288][ T6480] el0t_64_sync+0x1a0/0x1a4 [ 227.250630][ T6480] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.252485][ T6480] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.498851][ T6482] loop1: detected capacity change from 0 to 32768 [ 227.543475][ T6482] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.544717][ T6482] CPU: 0 PID: 6482 Comm: syz.1.670 Not tainted 5.15.189-syzkaller #0 [ 227.546009][ T6482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.547504][ T6482] Call trace: [ 227.548025][ T6482] dump_backtrace+0x0/0x43c [ 227.548751][ T6482] show_stack+0x2c/0x3c [ 227.549420][ T6482] __dump_stack+0x30/0x40 [ 227.550148][ T6482] dump_stack_lvl+0xf8/0x160 [ 227.550924][ T6482] dump_stack+0x1c/0x5c [ 227.551628][ T6482] sysfs_create_dir_ns+0x22c/0x24c [ 227.552530][ T6482] kobject_add_internal+0x590/0xc54 [ 227.553397][ T6482] kobject_init_and_add+0x118/0x17c [ 227.554272][ T6482] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.555015][ T6482] gfs2_fill_super+0xdac/0x19e0 [ 227.555722][ T6482] get_tree_bdev+0x358/0x544 [ 227.556480][ T6482] gfs2_get_tree+0x54/0x1b4 [ 227.557197][ T6482] vfs_get_tree+0x90/0x274 [ 227.557939][ T6482] do_new_mount+0x228/0x810 [ 227.558684][ T6482] path_mount+0x5b4/0x1000 [ 227.559408][ T6482] __arm64_sys_mount+0x514/0x5e4 [ 227.560251][ T6482] invoke_syscall+0x98/0x2b8 [ 227.561021][ T6482] el0_svc_common+0x138/0x258 [ 227.561777][ T6482] do_el0_svc+0x58/0x14c [ 227.562403][ T6482] el0_svc+0x78/0x1e0 [ 227.562967][ T6482] el0t_64_sync_handler+0xcc/0xe4 [ 227.563690][ T6482] el0t_64_sync+0x1a0/0x1a4 [ 227.564801][ T6482] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.566722][ T6482] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.699624][ T6484] loop1: detected capacity change from 0 to 32768 [ 227.706874][ T6484] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.707993][ T6484] CPU: 1 PID: 6484 Comm: syz.1.671 Not tainted 5.15.189-syzkaller #0 [ 227.709256][ T6484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.710759][ T6484] Call trace: [ 227.711256][ T6484] dump_backtrace+0x0/0x43c [ 227.711911][ T6484] show_stack+0x2c/0x3c [ 227.712520][ T6484] __dump_stack+0x30/0x40 [ 227.713151][ T6484] dump_stack_lvl+0xf8/0x160 [ 227.713819][ T6484] dump_stack+0x1c/0x5c [ 227.714426][ T6484] sysfs_create_dir_ns+0x22c/0x24c [ 227.715182][ T6484] kobject_add_internal+0x590/0xc54 [ 227.715922][ T6484] kobject_init_and_add+0x118/0x17c [ 227.716768][ T6484] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.717531][ T6484] gfs2_fill_super+0xdac/0x19e0 [ 227.718323][ T6484] get_tree_bdev+0x358/0x544 [ 227.719107][ T6484] gfs2_get_tree+0x54/0x1b4 [ 227.719830][ T6484] vfs_get_tree+0x90/0x274 [ 227.720569][ T6484] do_new_mount+0x228/0x810 [ 227.721305][ T6484] path_mount+0x5b4/0x1000 [ 227.721990][ T6484] __arm64_sys_mount+0x514/0x5e4 [ 227.722822][ T6484] invoke_syscall+0x98/0x2b8 [ 227.723533][ T6484] el0_svc_common+0x138/0x258 [ 227.724320][ T6484] do_el0_svc+0x58/0x14c [ 227.724985][ T6484] el0_svc+0x78/0x1e0 [ 227.725623][ T6484] el0t_64_sync_handler+0xcc/0xe4 [ 227.726422][ T6484] el0t_64_sync+0x1a0/0x1a4 [ 227.728386][ T6484] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.730500][ T6484] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.868974][ T6486] loop1: detected capacity change from 0 to 32768 [ 227.960329][ T6486] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.961875][ T6486] CPU: 0 PID: 6486 Comm: syz.1.672 Not tainted 5.15.189-syzkaller #0 [ 227.963170][ T6486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.964809][ T6486] Call trace: [ 227.965332][ T6486] dump_backtrace+0x0/0x43c [ 227.966032][ T6486] show_stack+0x2c/0x3c [ 227.966657][ T6486] __dump_stack+0x30/0x40 [ 227.967287][ T6486] dump_stack_lvl+0xf8/0x160 [ 227.967959][ T6486] dump_stack+0x1c/0x5c [ 227.968601][ T6486] sysfs_create_dir_ns+0x22c/0x24c [ 227.969465][ T6486] kobject_add_internal+0x590/0xc54 [ 227.970301][ T6486] kobject_init_and_add+0x118/0x17c [ 227.971115][ T6486] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.971919][ T6486] gfs2_fill_super+0xdac/0x19e0 [ 227.972671][ T6486] get_tree_bdev+0x358/0x544 [ 227.973363][ T6486] gfs2_get_tree+0x54/0x1b4 [ 227.974031][ T6486] vfs_get_tree+0x90/0x274 [ 227.974674][ T6486] do_new_mount+0x228/0x810 [ 227.975339][ T6486] path_mount+0x5b4/0x1000 [ 227.976025][ T6486] __arm64_sys_mount+0x514/0x5e4 [ 227.976725][ T6486] invoke_syscall+0x98/0x2b8 [ 227.977401][ T6486] el0_svc_common+0x138/0x258 [ 227.978162][ T6486] do_el0_svc+0x58/0x14c [ 227.978837][ T6486] el0_svc+0x78/0x1e0 [ 227.979455][ T6486] el0t_64_sync_handler+0xcc/0xe4 [ 227.980210][ T6486] el0t_64_sync+0x1a0/0x1a4 [ 227.981318][ T6486] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.983250][ T6486] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.236340][ T6488] loop1: detected capacity change from 0 to 32768 [ 228.272282][ T6488] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.273359][ T6488] CPU: 0 PID: 6488 Comm: syz.1.673 Not tainted 5.15.189-syzkaller #0 [ 228.274514][ T6488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 228.275885][ T6488] Call trace: [ 228.276350][ T6488] dump_backtrace+0x0/0x43c [ 228.276987][ T6488] show_stack+0x2c/0x3c [ 228.277550][ T6488] __dump_stack+0x30/0x40 [ 228.278219][ T6488] dump_stack_lvl+0xf8/0x160 [ 228.278987][ T6488] dump_stack+0x1c/0x5c [ 228.279672][ T6488] sysfs_create_dir_ns+0x22c/0x24c [ 228.280507][ T6488] kobject_add_internal+0x590/0xc54 [ 228.281335][ T6488] kobject_init_and_add+0x118/0x17c [ 228.282143][ T6488] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.282907][ T6488] gfs2_fill_super+0xdac/0x19e0 [ 228.283656][ T6488] get_tree_bdev+0x358/0x544 [ 228.284387][ T6488] gfs2_get_tree+0x54/0x1b4 [ 228.285103][ T6488] vfs_get_tree+0x90/0x274 [ 228.285818][ T6488] do_new_mount+0x228/0x810 [ 228.286604][ T6488] path_mount+0x5b4/0x1000 [ 228.287373][ T6488] __arm64_sys_mount+0x514/0x5e4 [ 228.288212][ T6488] invoke_syscall+0x98/0x2b8 [ 228.288972][ T6488] el0_svc_common+0x138/0x258 [ 228.289782][ T6488] do_el0_svc+0x58/0x14c [ 228.290482][ T6488] el0_svc+0x78/0x1e0 [ 228.291155][ T6488] el0t_64_sync_handler+0xcc/0xe4 [ 228.291957][ T6488] el0t_64_sync+0x1a0/0x1a4 [ 228.293816][ T6488] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.295802][ T6488] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.426764][ T6490] loop1: detected capacity change from 0 to 32768 [ 228.434058][ T6490] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.435344][ T6490] CPU: 0 PID: 6490 Comm: syz.1.674 Not tainted 5.15.189-syzkaller #0 [ 228.436572][ T6490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 228.438123][ T6490] Call trace: [ 228.438678][ T6490] dump_backtrace+0x0/0x43c [ 228.439432][ T6490] show_stack+0x2c/0x3c [ 228.440147][ T6490] __dump_stack+0x30/0x40 [ 228.440876][ T6490] dump_stack_lvl+0xf8/0x160 [ 228.441639][ T6490] dump_stack+0x1c/0x5c [ 228.442330][ T6490] sysfs_create_dir_ns+0x22c/0x24c [ 228.443215][ T6490] kobject_add_internal+0x590/0xc54 [ 228.444035][ T6490] kobject_init_and_add+0x118/0x17c [ 228.444907][ T6490] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.445679][ T6490] gfs2_fill_super+0xdac/0x19e0 [ 228.446415][ T6490] get_tree_bdev+0x358/0x544 [ 228.447129][ T6490] gfs2_get_tree+0x54/0x1b4 [ 228.447812][ T6490] vfs_get_tree+0x90/0x274 [ 228.448489][ T6490] do_new_mount+0x228/0x810 [ 228.449220][ T6490] path_mount+0x5b4/0x1000 [ 228.449910][ T6490] __arm64_sys_mount+0x514/0x5e4 [ 228.450748][ T6490] invoke_syscall+0x98/0x2b8 [ 228.451447][ T6490] el0_svc_common+0x138/0x258 [ 228.452233][ T6490] do_el0_svc+0x58/0x14c [ 228.452980][ T6490] el0_svc+0x78/0x1e0 [ 228.453629][ T6490] el0t_64_sync_handler+0xcc/0xe4 [ 228.454492][ T6490] el0t_64_sync+0x1a0/0x1a4 [ 228.456718][ T6490] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.458906][ T6490] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.595700][ T6492] loop1: detected capacity change from 0 to 32768 [ 228.690412][ T6492] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.691607][ T6492] CPU: 1 PID: 6492 Comm: syz.1.675 Not tainted 5.15.189-syzkaller #0 [ 228.692867][ T6492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 228.694432][ T6492] Call trace: [ 228.694960][ T6492] dump_backtrace+0x0/0x43c [ 228.695617][ T6492] show_stack+0x2c/0x3c [ 228.696281][ T6492] __dump_stack+0x30/0x40 [ 228.696970][ T6492] dump_stack_lvl+0xf8/0x160 [ 228.697607][ T6492] dump_stack+0x1c/0x5c [ 228.698186][ T6492] sysfs_create_dir_ns+0x22c/0x24c [ 228.698932][ T6492] kobject_add_internal+0x590/0xc54 [ 228.699692][ T6492] kobject_init_and_add+0x118/0x17c [ 228.700526][ T6492] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.701273][ T6492] gfs2_fill_super+0xdac/0x19e0 [ 228.702010][ T6492] get_tree_bdev+0x358/0x544 [ 228.702682][ T6492] gfs2_get_tree+0x54/0x1b4 [ 228.703456][ T6492] vfs_get_tree+0x90/0x274 [ 228.704204][ T6492] do_new_mount+0x228/0x810 [ 228.704889][ T6492] path_mount+0x5b4/0x1000 [ 228.705563][ T6492] __arm64_sys_mount+0x514/0x5e4 [ 228.706362][ T6492] invoke_syscall+0x98/0x2b8 [ 228.707095][ T6492] el0_svc_common+0x138/0x258 [ 228.707781][ T6492] do_el0_svc+0x58/0x14c [ 228.708460][ T6492] el0_svc+0x78/0x1e0 [ 228.709122][ T6492] el0t_64_sync_handler+0xcc/0xe4 [ 228.709927][ T6492] el0t_64_sync+0x1a0/0x1a4 [ 228.711250][ T6492] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.713123][ T6492] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.845470][ T6494] loop1: detected capacity change from 0 to 32768 [ 228.879575][ T6494] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.881076][ T6494] CPU: 1 PID: 6494 Comm: syz.1.676 Not tainted 5.15.189-syzkaller #0 [ 228.882260][ T6494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 228.883752][ T6494] Call trace: [ 228.884225][ T6494] dump_backtrace+0x0/0x43c [ 228.884911][ T6494] show_stack+0x2c/0x3c [ 228.885624][ T6494] __dump_stack+0x30/0x40 [ 228.886370][ T6494] dump_stack_lvl+0xf8/0x160 [ 228.887130][ T6494] dump_stack+0x1c/0x5c [ 228.887834][ T6494] sysfs_create_dir_ns+0x22c/0x24c [ 228.888701][ T6494] kobject_add_internal+0x590/0xc54 [ 228.889522][ T6494] kobject_init_and_add+0x118/0x17c [ 228.890384][ T6494] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.891210][ T6494] gfs2_fill_super+0xdac/0x19e0 [ 228.892042][ T6494] get_tree_bdev+0x358/0x544 [ 228.892842][ T6494] gfs2_get_tree+0x54/0x1b4 [ 228.893521][ T6494] vfs_get_tree+0x90/0x274 [ 228.894207][ T6494] do_new_mount+0x228/0x810 [ 228.894942][ T6494] path_mount+0x5b4/0x1000 [ 228.895651][ T6494] __arm64_sys_mount+0x514/0x5e4 [ 228.896394][ T6494] invoke_syscall+0x98/0x2b8 [ 228.897062][ T6494] el0_svc_common+0x138/0x258 [ 228.897719][ T6494] do_el0_svc+0x58/0x14c [ 228.898309][ T6494] el0_svc+0x78/0x1e0 [ 228.898877][ T6494] el0t_64_sync_handler+0xcc/0xe4 [ 228.899676][ T6494] el0t_64_sync+0x1a0/0x1a4 [ 228.900779][ T6494] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.902744][ T6494] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.039191][ T6496] loop1: detected capacity change from 0 to 32768 [ 229.088594][ T6496] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.089879][ T6496] CPU: 0 PID: 6496 Comm: syz.1.677 Not tainted 5.15.189-syzkaller #0 [ 229.091100][ T6496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.092559][ T6496] Call trace: [ 229.093032][ T6496] dump_backtrace+0x0/0x43c [ 229.093720][ T6496] show_stack+0x2c/0x3c [ 229.094371][ T6496] __dump_stack+0x30/0x40 [ 229.095071][ T6496] dump_stack_lvl+0xf8/0x160 [ 229.095776][ T6496] dump_stack+0x1c/0x5c [ 229.096365][ T6496] sysfs_create_dir_ns+0x22c/0x24c [ 229.097117][ T6496] kobject_add_internal+0x590/0xc54 [ 229.097819][ T6496] kobject_init_and_add+0x118/0x17c [ 229.098529][ T6496] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.099206][ T6496] gfs2_fill_super+0xdac/0x19e0 [ 229.099890][ T6496] get_tree_bdev+0x358/0x544 [ 229.100594][ T6496] gfs2_get_tree+0x54/0x1b4 [ 229.101298][ T6496] vfs_get_tree+0x90/0x274 [ 229.102003][ T6496] do_new_mount+0x228/0x810 [ 229.102683][ T6496] path_mount+0x5b4/0x1000 [ 229.103385][ T6496] __arm64_sys_mount+0x514/0x5e4 [ 229.104162][ T6496] invoke_syscall+0x98/0x2b8 [ 229.104860][ T6496] el0_svc_common+0x138/0x258 [ 229.105560][ T6496] do_el0_svc+0x58/0x14c [ 229.106168][ T6496] el0_svc+0x78/0x1e0 [ 229.106827][ T6496] el0t_64_sync_handler+0xcc/0xe4 [ 229.107592][ T6496] el0t_64_sync+0x1a0/0x1a4 [ 229.109748][ T6496] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.111629][ T6496] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.240127][ T6498] loop1: detected capacity change from 0 to 32768 [ 229.313764][ T6498] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.314971][ T6498] CPU: 0 PID: 6498 Comm: syz.1.678 Not tainted 5.15.189-syzkaller #0 [ 229.316166][ T6498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.317803][ T6498] Call trace: [ 229.318302][ T6498] dump_backtrace+0x0/0x43c [ 229.318973][ T6498] show_stack+0x2c/0x3c [ 229.319616][ T6498] __dump_stack+0x30/0x40 [ 229.320307][ T6498] dump_stack_lvl+0xf8/0x160 [ 229.321018][ T6498] dump_stack+0x1c/0x5c [ 229.321675][ T6498] sysfs_create_dir_ns+0x22c/0x24c [ 229.322502][ T6498] kobject_add_internal+0x590/0xc54 [ 229.323347][ T6498] kobject_init_and_add+0x118/0x17c [ 229.324162][ T6498] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.324882][ T6498] gfs2_fill_super+0xdac/0x19e0 [ 229.325593][ T6498] get_tree_bdev+0x358/0x544 [ 229.326290][ T6498] gfs2_get_tree+0x54/0x1b4 [ 229.326957][ T6498] vfs_get_tree+0x90/0x274 [ 229.327681][ T6498] do_new_mount+0x228/0x810 [ 229.328386][ T6498] path_mount+0x5b4/0x1000 [ 229.329067][ T6498] __arm64_sys_mount+0x514/0x5e4 [ 229.329834][ T6498] invoke_syscall+0x98/0x2b8 [ 229.330574][ T6498] el0_svc_common+0x138/0x258 [ 229.331315][ T6498] do_el0_svc+0x58/0x14c [ 229.332030][ T6498] el0_svc+0x78/0x1e0 [ 229.332707][ T6498] el0t_64_sync_handler+0xcc/0xe4 [ 229.333552][ T6498] el0t_64_sync+0x1a0/0x1a4 [ 229.335702][ T6498] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.337695][ T6498] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.473434][ T6500] loop1: detected capacity change from 0 to 32768 [ 229.510277][ T6500] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.511442][ T6500] CPU: 1 PID: 6500 Comm: syz.1.679 Not tainted 5.15.189-syzkaller #0 [ 229.512623][ T6500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.514257][ T6500] Call trace: [ 229.514749][ T6500] dump_backtrace+0x0/0x43c [ 229.515461][ T6500] show_stack+0x2c/0x3c [ 229.516064][ T6500] __dump_stack+0x30/0x40 [ 229.516697][ T6500] dump_stack_lvl+0xf8/0x160 [ 229.517362][ T6500] dump_stack+0x1c/0x5c [ 229.518027][ T6500] sysfs_create_dir_ns+0x22c/0x24c [ 229.518843][ T6500] kobject_add_internal+0x590/0xc54 [ 229.519622][ T6500] kobject_init_and_add+0x118/0x17c [ 229.520447][ T6500] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.521184][ T6500] gfs2_fill_super+0xdac/0x19e0 [ 229.521951][ T6500] get_tree_bdev+0x358/0x544 [ 229.522679][ T6500] gfs2_get_tree+0x54/0x1b4 [ 229.523444][ T6500] vfs_get_tree+0x90/0x274 [ 229.524192][ T6500] do_new_mount+0x228/0x810 [ 229.524970][ T6500] path_mount+0x5b4/0x1000 [ 229.525740][ T6500] __arm64_sys_mount+0x514/0x5e4 [ 229.526560][ T6500] invoke_syscall+0x98/0x2b8 [ 229.527353][ T6500] el0_svc_common+0x138/0x258 [ 229.528117][ T6500] do_el0_svc+0x58/0x14c [ 229.528808][ T6500] el0_svc+0x78/0x1e0 [ 229.529495][ T6500] el0t_64_sync_handler+0xcc/0xe4 [ 229.530369][ T6500] el0t_64_sync+0x1a0/0x1a4 [ 229.533996][ T6500] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.536043][ T6500] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.671987][ T6502] loop1: detected capacity change from 0 to 32768 [ 229.714338][ T6502] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.715462][ T6502] CPU: 0 PID: 6502 Comm: syz.1.680 Not tainted 5.15.189-syzkaller #0 [ 229.716608][ T6502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.718046][ T6502] Call trace: [ 229.718530][ T6502] dump_backtrace+0x0/0x43c [ 229.719186][ T6502] show_stack+0x2c/0x3c [ 229.719857][ T6502] __dump_stack+0x30/0x40 [ 229.720494][ T6502] dump_stack_lvl+0xf8/0x160 [ 229.721165][ T6502] dump_stack+0x1c/0x5c [ 229.721780][ T6502] sysfs_create_dir_ns+0x22c/0x24c [ 229.722513][ T6502] kobject_add_internal+0x590/0xc54 [ 229.723271][ T6502] kobject_init_and_add+0x118/0x17c [ 229.724034][ T6502] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.724703][ T6502] gfs2_fill_super+0xdac/0x19e0 [ 229.725393][ T6502] get_tree_bdev+0x358/0x544 [ 229.726047][ T6502] gfs2_get_tree+0x54/0x1b4 [ 229.726685][ T6502] vfs_get_tree+0x90/0x274 [ 229.727317][ T6502] do_new_mount+0x228/0x810 [ 229.727967][ T6502] path_mount+0x5b4/0x1000 [ 229.728580][ T6502] __arm64_sys_mount+0x514/0x5e4 [ 229.729276][ T6502] invoke_syscall+0x98/0x2b8 [ 229.729921][ T6502] el0_svc_common+0x138/0x258 [ 229.730576][ T6502] do_el0_svc+0x58/0x14c [ 229.731260][ T6502] el0_svc+0x78/0x1e0 [ 229.731921][ T6502] el0t_64_sync_handler+0xcc/0xe4 [ 229.732703][ T6502] el0t_64_sync+0x1a0/0x1a4 [ 229.734842][ T6502] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.736768][ T6502] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.867401][ T6504] loop1: detected capacity change from 0 to 32768 [ 229.874899][ T6504] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.876102][ T6504] CPU: 1 PID: 6504 Comm: syz.1.681 Not tainted 5.15.189-syzkaller #0 [ 229.877390][ T6504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.878900][ T6504] Call trace: [ 229.879378][ T6504] dump_backtrace+0x0/0x43c [ 229.880065][ T6504] show_stack+0x2c/0x3c [ 229.880694][ T6504] __dump_stack+0x30/0x40 [ 229.881420][ T6504] dump_stack_lvl+0xf8/0x160 [ 229.882147][ T6504] dump_stack+0x1c/0x5c [ 229.882817][ T6504] sysfs_create_dir_ns+0x22c/0x24c [ 229.883574][ T6504] kobject_add_internal+0x590/0xc54 [ 229.884451][ T6504] kobject_init_and_add+0x118/0x17c [ 229.885347][ T6504] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.886180][ T6504] gfs2_fill_super+0xdac/0x19e0 [ 229.886986][ T6504] get_tree_bdev+0x358/0x544 [ 229.887751][ T6504] gfs2_get_tree+0x54/0x1b4 [ 229.888375][ T6504] vfs_get_tree+0x90/0x274 [ 229.888988][ T6504] do_new_mount+0x228/0x810 [ 229.889676][ T6504] path_mount+0x5b4/0x1000 [ 229.890300][ T6504] __arm64_sys_mount+0x514/0x5e4 [ 229.890985][ T6504] invoke_syscall+0x98/0x2b8 [ 229.891619][ T6504] el0_svc_common+0x138/0x258 [ 229.892322][ T6504] do_el0_svc+0x58/0x14c [ 229.892989][ T6504] el0_svc+0x78/0x1e0 [ 229.893584][ T6504] el0t_64_sync_handler+0xcc/0xe4 [ 229.894357][ T6504] el0t_64_sync+0x1a0/0x1a4 [ 229.895792][ T6504] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.897775][ T6504] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.034468][ T6506] loop1: detected capacity change from 0 to 32768 [ 230.043321][ T6506] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.044536][ T6506] CPU: 1 PID: 6506 Comm: syz.1.682 Not tainted 5.15.189-syzkaller #0 [ 230.045765][ T6506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 230.047275][ T6506] Call trace: [ 230.047777][ T6506] dump_backtrace+0x0/0x43c [ 230.048485][ T6506] show_stack+0x2c/0x3c [ 230.049155][ T6506] __dump_stack+0x30/0x40 [ 230.049825][ T6506] dump_stack_lvl+0xf8/0x160 [ 230.050523][ T6506] dump_stack+0x1c/0x5c [ 230.051147][ T6506] sysfs_create_dir_ns+0x22c/0x24c [ 230.051918][ T6506] kobject_add_internal+0x590/0xc54 [ 230.052676][ T6506] kobject_init_and_add+0x118/0x17c [ 230.053518][ T6506] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.054273][ T6506] gfs2_fill_super+0xdac/0x19e0 [ 230.054999][ T6506] get_tree_bdev+0x358/0x544 [ 230.055759][ T6506] gfs2_get_tree+0x54/0x1b4 [ 230.056491][ T6506] vfs_get_tree+0x90/0x274 [ 230.057211][ T6506] do_new_mount+0x228/0x810 [ 230.057891][ T6506] path_mount+0x5b4/0x1000 [ 230.058623][ T6506] __arm64_sys_mount+0x514/0x5e4 [ 230.059418][ T6506] invoke_syscall+0x98/0x2b8 [ 230.060201][ T6506] el0_svc_common+0x138/0x258 [ 230.060944][ T6506] do_el0_svc+0x58/0x14c [ 230.061586][ T6506] el0_svc+0x78/0x1e0 [ 230.062216][ T6506] el0t_64_sync_handler+0xcc/0xe4 [ 230.062971][ T6506] el0t_64_sync+0x1a0/0x1a4 [ 230.064384][ T6506] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.066471][ T6506] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.199813][ T6508] loop1: detected capacity change from 0 to 32768 [ 230.259847][ T6508] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.261051][ T6508] CPU: 0 PID: 6508 Comm: syz.1.683 Not tainted 5.15.189-syzkaller #0 [ 230.262296][ T6508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 230.263890][ T6508] Call trace: [ 230.264389][ T6508] dump_backtrace+0x0/0x43c [ 230.265057][ T6508] show_stack+0x2c/0x3c [ 230.265652][ T6508] __dump_stack+0x30/0x40 [ 230.266264][ T6508] dump_stack_lvl+0xf8/0x160 [ 230.266943][ T6508] dump_stack+0x1c/0x5c [ 230.267638][ T6508] sysfs_create_dir_ns+0x22c/0x24c [ 230.268503][ T6508] kobject_add_internal+0x590/0xc54 [ 230.269339][ T6508] kobject_init_and_add+0x118/0x17c [ 230.270237][ T6508] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.271035][ T6508] gfs2_fill_super+0xdac/0x19e0 [ 230.271821][ T6508] get_tree_bdev+0x358/0x544 [ 230.272572][ T6508] gfs2_get_tree+0x54/0x1b4 [ 230.273317][ T6508] vfs_get_tree+0x90/0x274 [ 230.274012][ T6508] do_new_mount+0x228/0x810 [ 230.274731][ T6508] path_mount+0x5b4/0x1000 [ 230.275414][ T6508] __arm64_sys_mount+0x514/0x5e4 [ 230.276234][ T6508] invoke_syscall+0x98/0x2b8 [ 230.276975][ T6508] el0_svc_common+0x138/0x258 [ 230.277722][ T6508] do_el0_svc+0x58/0x14c [ 230.278394][ T6508] el0_svc+0x78/0x1e0 [ 230.279051][ T6508] el0t_64_sync_handler+0xcc/0xe4 [ 230.279924][ T6508] el0t_64_sync+0x1a0/0x1a4 [ 230.280865][ T6508] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.282827][ T6508] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.413824][ T6510] loop1: detected capacity change from 0 to 32768 [ 230.453922][ T6510] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.455134][ T6510] CPU: 0 PID: 6510 Comm: syz.1.684 Not tainted 5.15.189-syzkaller #0 [ 230.456387][ T6510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 230.457791][ T6510] Call trace: [ 230.458250][ T6510] dump_backtrace+0x0/0x43c [ 230.458932][ T6510] show_stack+0x2c/0x3c [ 230.459534][ T6510] __dump_stack+0x30/0x40 [ 230.460136][ T6510] dump_stack_lvl+0xf8/0x160 [ 230.460786][ T6510] dump_stack+0x1c/0x5c [ 230.461388][ T6510] sysfs_create_dir_ns+0x22c/0x24c [ 230.462126][ T6510] kobject_add_internal+0x590/0xc54 [ 230.462894][ T6510] kobject_init_and_add+0x118/0x17c [ 230.463733][ T6510] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.464517][ T6510] gfs2_fill_super+0xdac/0x19e0 [ 230.465320][ T6510] get_tree_bdev+0x358/0x544 [ 230.466028][ T6510] gfs2_get_tree+0x54/0x1b4 [ 230.466707][ T6510] vfs_get_tree+0x90/0x274 [ 230.467388][ T6510] do_new_mount+0x228/0x810 [ 230.468070][ T6510] path_mount+0x5b4/0x1000 [ 230.468756][ T6510] __arm64_sys_mount+0x514/0x5e4 [ 230.469575][ T6510] invoke_syscall+0x98/0x2b8 [ 230.470270][ T6510] el0_svc_common+0x138/0x258 [ 230.471048][ T6510] do_el0_svc+0x58/0x14c [ 230.471769][ T6510] el0_svc+0x78/0x1e0 [ 230.472424][ T6510] el0t_64_sync_handler+0xcc/0xe4 [ 230.473215][ T6510] el0t_64_sync+0x1a0/0x1a4 [ 230.475238][ T6510] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.477114][ T6510] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.606944][ T6512] loop1: detected capacity change from 0 to 32768 [ 230.644201][ T6512] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.645364][ T6512] CPU: 1 PID: 6512 Comm: syz.1.685 Not tainted 5.15.189-syzkaller #0 [ 230.646514][ T6512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 230.648025][ T6512] Call trace: [ 230.648529][ T6512] dump_backtrace+0x0/0x43c [ 230.649279][ T6512] show_stack+0x2c/0x3c [ 230.650005][ T6512] __dump_stack+0x30/0x40 [ 230.650659][ T6512] dump_stack_lvl+0xf8/0x160 [ 230.651351][ T6512] dump_stack+0x1c/0x5c [ 230.651978][ T6512] sysfs_create_dir_ns+0x22c/0x24c [ 230.652851][ T6512] kobject_add_internal+0x590/0xc54 [ 230.653711][ T6512] kobject_init_and_add+0x118/0x17c [ 230.654586][ T6512] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.655296][ T6512] gfs2_fill_super+0xdac/0x19e0 [ 230.656077][ T6512] get_tree_bdev+0x358/0x544 [ 230.656772][ T6512] gfs2_get_tree+0x54/0x1b4 [ 230.657455][ T6512] vfs_get_tree+0x90/0x274 [ 230.658147][ T6512] do_new_mount+0x228/0x810 [ 230.658925][ T6512] path_mount+0x5b4/0x1000 [ 230.659608][ T6512] __arm64_sys_mount+0x514/0x5e4 [ 230.660376][ T6512] invoke_syscall+0x98/0x2b8 [ 230.661123][ T6512] el0_svc_common+0x138/0x258 [ 230.661904][ T6512] do_el0_svc+0x58/0x14c [ 230.662644][ T6512] el0_svc+0x78/0x1e0 [ 230.663337][ T6512] el0t_64_sync_handler+0xcc/0xe4 [ 230.664187][ T6512] el0t_64_sync+0x1a0/0x1a4 [ 230.666622][ T6512] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.668832][ T6512] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.794392][ T6514] loop1: detected capacity change from 0 to 32768 [ 230.848339][ T6514] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.849443][ T6514] CPU: 1 PID: 6514 Comm: syz.1.686 Not tainted 5.15.189-syzkaller #0 [ 230.850743][ T6514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 230.852329][ T6514] Call trace: [ 230.852795][ T6514] dump_backtrace+0x0/0x43c [ 230.853448][ T6514] show_stack+0x2c/0x3c [ 230.854044][ T6514] __dump_stack+0x30/0x40 [ 230.854667][ T6514] dump_stack_lvl+0xf8/0x160 [ 230.855347][ T6514] dump_stack+0x1c/0x5c [ 230.855946][ T6514] sysfs_create_dir_ns+0x22c/0x24c [ 230.856648][ T6514] kobject_add_internal+0x590/0xc54 [ 230.857351][ T6514] kobject_init_and_add+0x118/0x17c [ 230.858069][ T6514] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.858803][ T6514] gfs2_fill_super+0xdac/0x19e0 [ 230.859639][ T6514] get_tree_bdev+0x358/0x544 [ 230.860343][ T6514] gfs2_get_tree+0x54/0x1b4 [ 230.861038][ T6514] vfs_get_tree+0x90/0x274 [ 230.861718][ T6514] do_new_mount+0x228/0x810 [ 230.862410][ T6514] path_mount+0x5b4/0x1000 [ 230.863074][ T6514] __arm64_sys_mount+0x514/0x5e4 [ 230.863920][ T6514] invoke_syscall+0x98/0x2b8 [ 230.864649][ T6514] el0_svc_common+0x138/0x258 [ 230.865385][ T6514] do_el0_svc+0x58/0x14c [ 230.866105][ T6514] el0_svc+0x78/0x1e0 [ 230.866728][ T6514] el0t_64_sync_handler+0xcc/0xe4 [ 230.867490][ T6514] el0t_64_sync+0x1a0/0x1a4 [ 230.869012][ T6514] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.870969][ T6514] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.001964][ T6516] loop1: detected capacity change from 0 to 32768 [ 231.010496][ T6516] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.011692][ T6516] CPU: 0 PID: 6516 Comm: syz.1.687 Not tainted 5.15.189-syzkaller #0 [ 231.012972][ T6516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.014601][ T6516] Call trace: [ 231.015100][ T6516] dump_backtrace+0x0/0x43c [ 231.015765][ T6516] show_stack+0x2c/0x3c [ 231.016363][ T6516] __dump_stack+0x30/0x40 [ 231.017013][ T6516] dump_stack_lvl+0xf8/0x160 [ 231.017702][ T6516] dump_stack+0x1c/0x5c [ 231.018310][ T6516] sysfs_create_dir_ns+0x22c/0x24c [ 231.019171][ T6516] kobject_add_internal+0x590/0xc54 [ 231.020040][ T6516] kobject_init_and_add+0x118/0x17c [ 231.020856][ T6516] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.021611][ T6516] gfs2_fill_super+0xdac/0x19e0 [ 231.022386][ T6516] get_tree_bdev+0x358/0x544 [ 231.023142][ T6516] gfs2_get_tree+0x54/0x1b4 [ 231.023890][ T6516] vfs_get_tree+0x90/0x274 [ 231.024592][ T6516] do_new_mount+0x228/0x810 [ 231.025288][ T6516] path_mount+0x5b4/0x1000 [ 231.025975][ T6516] __arm64_sys_mount+0x514/0x5e4 [ 231.026738][ T6516] invoke_syscall+0x98/0x2b8 [ 231.027471][ T6516] el0_svc_common+0x138/0x258 [ 231.028226][ T6516] do_el0_svc+0x58/0x14c [ 231.028896][ T6516] el0_svc+0x78/0x1e0 [ 231.029547][ T6516] el0t_64_sync_handler+0xcc/0xe4 [ 231.030335][ T6516] el0t_64_sync+0x1a0/0x1a4 [ 231.032531][ T6516] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.034733][ T6516] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.162452][ T6518] loop1: detected capacity change from 0 to 32768 [ 231.219676][ T6518] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.221077][ T6518] CPU: 1 PID: 6518 Comm: syz.1.688 Not tainted 5.15.189-syzkaller #0 [ 231.222287][ T6518] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.223728][ T6518] Call trace: [ 231.224215][ T6518] dump_backtrace+0x0/0x43c [ 231.224930][ T6518] show_stack+0x2c/0x3c [ 231.225565][ T6518] __dump_stack+0x30/0x40 [ 231.226215][ T6518] dump_stack_lvl+0xf8/0x160 [ 231.226978][ T6518] dump_stack+0x1c/0x5c [ 231.227666][ T6518] sysfs_create_dir_ns+0x22c/0x24c [ 231.228525][ T6518] kobject_add_internal+0x590/0xc54 [ 231.229374][ T6518] kobject_init_and_add+0x118/0x17c [ 231.230209][ T6518] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.230983][ T6518] gfs2_fill_super+0xdac/0x19e0 [ 231.231754][ T6518] get_tree_bdev+0x358/0x544 [ 231.232492][ T6518] gfs2_get_tree+0x54/0x1b4 [ 231.233268][ T6518] vfs_get_tree+0x90/0x274 [ 231.234029][ T6518] do_new_mount+0x228/0x810 [ 231.234718][ T6518] path_mount+0x5b4/0x1000 [ 231.235396][ T6518] __arm64_sys_mount+0x514/0x5e4 [ 231.236157][ T6518] invoke_syscall+0x98/0x2b8 [ 231.236868][ T6518] el0_svc_common+0x138/0x258 [ 231.237673][ T6518] do_el0_svc+0x58/0x14c [ 231.238370][ T6518] el0_svc+0x78/0x1e0 [ 231.239019][ T6518] el0t_64_sync_handler+0xcc/0xe4 [ 231.239815][ T6518] el0t_64_sync+0x1a0/0x1a4 [ 231.241354][ T6518] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.243242][ T6518] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.368075][ T6520] loop1: detected capacity change from 0 to 32768 [ 231.375349][ T6520] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.376551][ T6520] CPU: 1 PID: 6520 Comm: syz.1.689 Not tainted 5.15.189-syzkaller #0 [ 231.377843][ T6520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.379425][ T6520] Call trace: [ 231.379932][ T6520] dump_backtrace+0x0/0x43c [ 231.380592][ T6520] show_stack+0x2c/0x3c [ 231.381192][ T6520] __dump_stack+0x30/0x40 [ 231.381906][ T6520] dump_stack_lvl+0xf8/0x160 [ 231.382641][ T6520] dump_stack+0x1c/0x5c [ 231.383389][ T6520] sysfs_create_dir_ns+0x22c/0x24c [ 231.384180][ T6520] kobject_add_internal+0x590/0xc54 [ 231.384953][ T6520] kobject_init_and_add+0x118/0x17c [ 231.385743][ T6520] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.386442][ T6520] gfs2_fill_super+0xdac/0x19e0 [ 231.387232][ T6520] get_tree_bdev+0x358/0x544 [ 231.388022][ T6520] gfs2_get_tree+0x54/0x1b4 [ 231.388753][ T6520] vfs_get_tree+0x90/0x274 [ 231.389489][ T6520] do_new_mount+0x228/0x810 [ 231.390259][ T6520] path_mount+0x5b4/0x1000 [ 231.391032][ T6520] __arm64_sys_mount+0x514/0x5e4 [ 231.391876][ T6520] invoke_syscall+0x98/0x2b8 [ 231.392659][ T6520] el0_svc_common+0x138/0x258 [ 231.393460][ T6520] do_el0_svc+0x58/0x14c [ 231.394166][ T6520] el0_svc+0x78/0x1e0 [ 231.394828][ T6520] el0t_64_sync_handler+0xcc/0xe4 [ 231.395670][ T6520] el0t_64_sync+0x1a0/0x1a4 [ 231.398175][ T6520] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.400394][ T6520] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.524825][ T6522] loop1: detected capacity change from 0 to 32768 [ 231.602875][ T6522] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.604120][ T6522] CPU: 0 PID: 6522 Comm: syz.1.690 Not tainted 5.15.189-syzkaller #0 [ 231.605446][ T6522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.607048][ T6522] Call trace: [ 231.607569][ T6522] dump_backtrace+0x0/0x43c [ 231.608304][ T6522] show_stack+0x2c/0x3c [ 231.609007][ T6522] __dump_stack+0x30/0x40 [ 231.609718][ T6522] dump_stack_lvl+0xf8/0x160 [ 231.610409][ T6522] dump_stack+0x1c/0x5c [ 231.611047][ T6522] sysfs_create_dir_ns+0x22c/0x24c [ 231.611812][ T6522] kobject_add_internal+0x590/0xc54 [ 231.612590][ T6522] kobject_init_and_add+0x118/0x17c [ 231.613370][ T6522] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.614160][ T6522] gfs2_fill_super+0xdac/0x19e0 [ 231.614890][ T6522] get_tree_bdev+0x358/0x544 [ 231.615546][ T6522] gfs2_get_tree+0x54/0x1b4 [ 231.616216][ T6522] vfs_get_tree+0x90/0x274 [ 231.616855][ T6522] do_new_mount+0x228/0x810 [ 231.617496][ T6522] path_mount+0x5b4/0x1000 [ 231.618133][ T6522] __arm64_sys_mount+0x514/0x5e4 [ 231.618849][ T6522] invoke_syscall+0x98/0x2b8 [ 231.619489][ T6522] el0_svc_common+0x138/0x258 [ 231.620161][ T6522] do_el0_svc+0x58/0x14c [ 231.620802][ T6522] el0_svc+0x78/0x1e0 [ 231.621355][ T6522] el0t_64_sync_handler+0xcc/0xe4 [ 231.622078][ T6522] el0t_64_sync+0x1a0/0x1a4 [ 231.623473][ T6522] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.625505][ T6522] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:51 executed programs: 677 [ 231.752325][ T6524] loop1: detected capacity change from 0 to 32768 [ 231.842671][ T6524] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.843934][ T6524] CPU: 1 PID: 6524 Comm: syz.1.691 Not tainted 5.15.189-syzkaller #0 [ 231.845199][ T6524] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.846887][ T6524] Call trace: [ 231.847461][ T6524] dump_backtrace+0x0/0x43c [ 231.848194][ T6524] show_stack+0x2c/0x3c [ 231.848821][ T6524] __dump_stack+0x30/0x40 [ 231.849483][ T6524] dump_stack_lvl+0xf8/0x160 [ 231.850172][ T6524] dump_stack+0x1c/0x5c [ 231.850802][ T6524] sysfs_create_dir_ns+0x22c/0x24c [ 231.851522][ T6524] kobject_add_internal+0x590/0xc54 [ 231.852254][ T6524] kobject_init_and_add+0x118/0x17c [ 231.852996][ T6524] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.853678][ T6524] gfs2_fill_super+0xdac/0x19e0 [ 231.854358][ T6524] get_tree_bdev+0x358/0x544 [ 231.855007][ T6524] gfs2_get_tree+0x54/0x1b4 [ 231.855656][ T6524] vfs_get_tree+0x90/0x274 [ 231.856232][ T6524] do_new_mount+0x228/0x810 [ 231.856847][ T6524] path_mount+0x5b4/0x1000 [ 231.857467][ T6524] __arm64_sys_mount+0x514/0x5e4 [ 231.858171][ T6524] invoke_syscall+0x98/0x2b8 [ 231.858808][ T6524] el0_svc_common+0x138/0x258 [ 231.859479][ T6524] do_el0_svc+0x58/0x14c [ 231.860090][ T6524] el0_svc+0x78/0x1e0 [ 231.860652][ T6524] el0t_64_sync_handler+0xcc/0xe4 [ 231.861413][ T6524] el0t_64_sync+0x1a0/0x1a4 [ 231.863652][ T6524] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.865742][ T6524] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.996083][ T6526] loop1: detected capacity change from 0 to 32768 [ 232.083708][ T6526] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.084915][ T6526] CPU: 1 PID: 6526 Comm: syz.1.692 Not tainted 5.15.189-syzkaller #0 [ 232.086126][ T6526] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.087657][ T6526] Call trace: [ 232.088164][ T6526] dump_backtrace+0x0/0x43c [ 232.088850][ T6526] show_stack+0x2c/0x3c [ 232.089467][ T6526] __dump_stack+0x30/0x40 [ 232.090200][ T6526] dump_stack_lvl+0xf8/0x160 [ 232.090938][ T6526] dump_stack+0x1c/0x5c [ 232.091614][ T6526] sysfs_create_dir_ns+0x22c/0x24c [ 232.092444][ T6526] kobject_add_internal+0x590/0xc54 [ 232.093332][ T6526] kobject_init_and_add+0x118/0x17c [ 232.094238][ T6526] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.095016][ T6526] gfs2_fill_super+0xdac/0x19e0 [ 232.095859][ T6526] get_tree_bdev+0x358/0x544 [ 232.096580][ T6526] gfs2_get_tree+0x54/0x1b4 [ 232.097260][ T6526] vfs_get_tree+0x90/0x274 [ 232.097908][ T6526] do_new_mount+0x228/0x810 [ 232.098641][ T6526] path_mount+0x5b4/0x1000 [ 232.099298][ T6526] __arm64_sys_mount+0x514/0x5e4 [ 232.100046][ T6526] invoke_syscall+0x98/0x2b8 [ 232.100747][ T6526] el0_svc_common+0x138/0x258 [ 232.101411][ T6526] do_el0_svc+0x58/0x14c [ 232.102024][ T6526] el0_svc+0x78/0x1e0 [ 232.102617][ T6526] el0t_64_sync_handler+0xcc/0xe4 [ 232.103356][ T6526] el0t_64_sync+0x1a0/0x1a4 [ 232.105444][ T6526] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.107357][ T6526] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.232478][ T6528] loop1: detected capacity change from 0 to 32768 [ 232.272870][ T6528] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.274095][ T6528] CPU: 1 PID: 6528 Comm: syz.1.693 Not tainted 5.15.189-syzkaller #0 [ 232.275255][ T6528] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.276705][ T6528] Call trace: [ 232.277171][ T6528] dump_backtrace+0x0/0x43c [ 232.277822][ T6528] show_stack+0x2c/0x3c [ 232.278415][ T6528] __dump_stack+0x30/0x40 [ 232.279138][ T6528] dump_stack_lvl+0xf8/0x160 [ 232.279887][ T6528] dump_stack+0x1c/0x5c [ 232.280580][ T6528] sysfs_create_dir_ns+0x22c/0x24c [ 232.281381][ T6528] kobject_add_internal+0x590/0xc54 [ 232.282187][ T6528] kobject_init_and_add+0x118/0x17c [ 232.282972][ T6528] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.283691][ T6528] gfs2_fill_super+0xdac/0x19e0 [ 232.284427][ T6528] get_tree_bdev+0x358/0x544 [ 232.285225][ T6528] gfs2_get_tree+0x54/0x1b4 [ 232.285943][ T6528] vfs_get_tree+0x90/0x274 [ 232.286623][ T6528] do_new_mount+0x228/0x810 [ 232.287323][ T6528] path_mount+0x5b4/0x1000 [ 232.288013][ T6528] __arm64_sys_mount+0x514/0x5e4 [ 232.288812][ T6528] invoke_syscall+0x98/0x2b8 [ 232.289566][ T6528] el0_svc_common+0x138/0x258 [ 232.290281][ T6528] do_el0_svc+0x58/0x14c [ 232.290920][ T6528] el0_svc+0x78/0x1e0 [ 232.291496][ T6528] el0t_64_sync_handler+0xcc/0xe4 [ 232.292219][ T6528] el0t_64_sync+0x1a0/0x1a4 [ 232.293580][ T6528] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.295420][ T6528] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.424330][ T6530] loop1: detected capacity change from 0 to 32768 [ 232.509524][ T6530] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.510647][ T6530] CPU: 1 PID: 6530 Comm: syz.1.694 Not tainted 5.15.189-syzkaller #0 [ 232.511809][ T6530] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.513198][ T6530] Call trace: [ 232.513647][ T6530] dump_backtrace+0x0/0x43c [ 232.514273][ T6530] show_stack+0x2c/0x3c [ 232.514862][ T6530] __dump_stack+0x30/0x40 [ 232.515476][ T6530] dump_stack_lvl+0xf8/0x160 [ 232.516118][ T6530] dump_stack+0x1c/0x5c [ 232.516688][ T6530] sysfs_create_dir_ns+0x22c/0x24c [ 232.517376][ T6530] kobject_add_internal+0x590/0xc54 [ 232.518196][ T6530] kobject_init_and_add+0x118/0x17c [ 232.519010][ T6530] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.519730][ T6530] gfs2_fill_super+0xdac/0x19e0 [ 232.520464][ T6530] get_tree_bdev+0x358/0x544 [ 232.521203][ T6530] gfs2_get_tree+0x54/0x1b4 [ 232.521949][ T6530] vfs_get_tree+0x90/0x274 [ 232.522676][ T6530] do_new_mount+0x228/0x810 [ 232.523426][ T6530] path_mount+0x5b4/0x1000 [ 232.524099][ T6530] __arm64_sys_mount+0x514/0x5e4 [ 232.524815][ T6530] invoke_syscall+0x98/0x2b8 [ 232.525522][ T6530] el0_svc_common+0x138/0x258 [ 232.526302][ T6530] do_el0_svc+0x58/0x14c [ 232.526977][ T6530] el0_svc+0x78/0x1e0 [ 232.527663][ T6530] el0t_64_sync_handler+0xcc/0xe4 [ 232.528457][ T6530] el0t_64_sync+0x1a0/0x1a4 [ 232.529815][ T6530] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.531834][ T6530] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.667102][ T6532] loop1: detected capacity change from 0 to 32768 [ 232.729549][ T6532] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.730741][ T6532] CPU: 1 PID: 6532 Comm: syz.1.695 Not tainted 5.15.189-syzkaller #0 [ 232.732059][ T6532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.733597][ T6532] Call trace: [ 232.734106][ T6532] dump_backtrace+0x0/0x43c [ 232.734873][ T6532] show_stack+0x2c/0x3c [ 232.735566][ T6532] __dump_stack+0x30/0x40 [ 232.736246][ T6532] dump_stack_lvl+0xf8/0x160 [ 232.736982][ T6532] dump_stack+0x1c/0x5c [ 232.737630][ T6532] sysfs_create_dir_ns+0x22c/0x24c [ 232.738440][ T6532] kobject_add_internal+0x590/0xc54 [ 232.739322][ T6532] kobject_init_and_add+0x118/0x17c [ 232.740239][ T6532] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.741038][ T6532] gfs2_fill_super+0xdac/0x19e0 [ 232.741750][ T6532] get_tree_bdev+0x358/0x544 [ 232.742467][ T6532] gfs2_get_tree+0x54/0x1b4 [ 232.743202][ T6532] vfs_get_tree+0x90/0x274 [ 232.743868][ T6532] do_new_mount+0x228/0x810 [ 232.744513][ T6532] path_mount+0x5b4/0x1000 [ 232.745159][ T6532] __arm64_sys_mount+0x514/0x5e4 [ 232.745893][ T6532] invoke_syscall+0x98/0x2b8 [ 232.746603][ T6532] el0_svc_common+0x138/0x258 [ 232.747369][ T6532] do_el0_svc+0x58/0x14c [ 232.748007][ T6532] el0_svc+0x78/0x1e0 [ 232.748627][ T6532] el0t_64_sync_handler+0xcc/0xe4 [ 232.749399][ T6532] el0t_64_sync+0x1a0/0x1a4 [ 232.753422][ T6532] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.755286][ T6532] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.888989][ T6534] loop1: detected capacity change from 0 to 32768 [ 232.895867][ T6534] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.897033][ T6534] CPU: 0 PID: 6534 Comm: syz.1.696 Not tainted 5.15.189-syzkaller #0 [ 232.898338][ T6534] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.900011][ T6534] Call trace: [ 232.900554][ T6534] dump_backtrace+0x0/0x43c [ 232.901300][ T6534] show_stack+0x2c/0x3c [ 232.901958][ T6534] __dump_stack+0x30/0x40 [ 232.902706][ T6534] dump_stack_lvl+0xf8/0x160 [ 232.903451][ T6534] dump_stack+0x1c/0x5c [ 232.904098][ T6534] sysfs_create_dir_ns+0x22c/0x24c [ 232.904951][ T6534] kobject_add_internal+0x590/0xc54 [ 232.905870][ T6534] kobject_init_and_add+0x118/0x17c [ 232.906774][ T6534] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.907544][ T6534] gfs2_fill_super+0xdac/0x19e0 [ 232.908324][ T6534] get_tree_bdev+0x358/0x544 [ 232.909043][ T6534] gfs2_get_tree+0x54/0x1b4 [ 232.909760][ T6534] vfs_get_tree+0x90/0x274 [ 232.910447][ T6534] do_new_mount+0x228/0x810 [ 232.911143][ T6534] path_mount+0x5b4/0x1000 [ 232.911811][ T6534] __arm64_sys_mount+0x514/0x5e4 [ 232.912547][ T6534] invoke_syscall+0x98/0x2b8 [ 232.913231][ T6534] el0_svc_common+0x138/0x258 [ 232.913937][ T6534] do_el0_svc+0x58/0x14c [ 232.914659][ T6534] el0_svc+0x78/0x1e0 [ 232.915290][ T6534] el0t_64_sync_handler+0xcc/0xe4 [ 232.916031][ T6534] el0t_64_sync+0x1a0/0x1a4 [ 232.918170][ T6534] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.920230][ T6534] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.053820][ T6536] loop1: detected capacity change from 0 to 32768 [ 233.061089][ T6536] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.062280][ T6536] CPU: 1 PID: 6536 Comm: syz.1.697 Not tainted 5.15.189-syzkaller #0 [ 233.063545][ T6536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.065037][ T6536] Call trace: [ 233.065535][ T6536] dump_backtrace+0x0/0x43c [ 233.066226][ T6536] show_stack+0x2c/0x3c [ 233.066857][ T6536] __dump_stack+0x30/0x40 [ 233.067588][ T6536] dump_stack_lvl+0xf8/0x160 [ 233.068369][ T6536] dump_stack+0x1c/0x5c [ 233.069095][ T6536] sysfs_create_dir_ns+0x22c/0x24c [ 233.069902][ T6536] kobject_add_internal+0x590/0xc54 [ 233.070718][ T6536] kobject_init_and_add+0x118/0x17c [ 233.071523][ T6536] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.072271][ T6536] gfs2_fill_super+0xdac/0x19e0 [ 233.073068][ T6536] get_tree_bdev+0x358/0x544 [ 233.073793][ T6536] gfs2_get_tree+0x54/0x1b4 [ 233.074590][ T6536] vfs_get_tree+0x90/0x274 [ 233.075362][ T6536] do_new_mount+0x228/0x810 [ 233.076106][ T6536] path_mount+0x5b4/0x1000 [ 233.076877][ T6536] __arm64_sys_mount+0x514/0x5e4 [ 233.077668][ T6536] invoke_syscall+0x98/0x2b8 [ 233.078412][ T6536] el0_svc_common+0x138/0x258 [ 233.079224][ T6536] do_el0_svc+0x58/0x14c [ 233.079953][ T6536] el0_svc+0x78/0x1e0 [ 233.080591][ T6536] el0t_64_sync_handler+0xcc/0xe4 [ 233.081374][ T6536] el0t_64_sync+0x1a0/0x1a4 [ 233.082437][ T6536] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.084530][ T6536] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.210594][ T6538] loop1: detected capacity change from 0 to 32768 [ 233.249472][ T6538] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.250619][ T6538] CPU: 1 PID: 6538 Comm: syz.1.698 Not tainted 5.15.189-syzkaller #0 [ 233.251879][ T6538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.253459][ T6538] Call trace: [ 233.254013][ T6538] dump_backtrace+0x0/0x43c [ 233.254747][ T6538] show_stack+0x2c/0x3c [ 233.255396][ T6538] __dump_stack+0x30/0x40 [ 233.256150][ T6538] dump_stack_lvl+0xf8/0x160 [ 233.256918][ T6538] dump_stack+0x1c/0x5c [ 233.257626][ T6538] sysfs_create_dir_ns+0x22c/0x24c [ 233.258482][ T6538] kobject_add_internal+0x590/0xc54 [ 233.259321][ T6538] kobject_init_and_add+0x118/0x17c [ 233.260129][ T6538] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.260965][ T6538] gfs2_fill_super+0xdac/0x19e0 [ 233.261809][ T6538] get_tree_bdev+0x358/0x544 [ 233.262564][ T6538] gfs2_get_tree+0x54/0x1b4 [ 233.263311][ T6538] vfs_get_tree+0x90/0x274 [ 233.264039][ T6538] do_new_mount+0x228/0x810 [ 233.264783][ T6538] path_mount+0x5b4/0x1000 [ 233.265498][ T6538] __arm64_sys_mount+0x514/0x5e4 [ 233.266329][ T6538] invoke_syscall+0x98/0x2b8 [ 233.267111][ T6538] el0_svc_common+0x138/0x258 [ 233.267913][ T6538] do_el0_svc+0x58/0x14c [ 233.268640][ T6538] el0_svc+0x78/0x1e0 [ 233.269329][ T6538] el0t_64_sync_handler+0xcc/0xe4 [ 233.270135][ T6538] el0t_64_sync+0x1a0/0x1a4 [ 233.272436][ T6538] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.274371][ T6538] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.405035][ T6540] loop1: detected capacity change from 0 to 32768 [ 233.443107][ T6540] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.444242][ T6540] CPU: 1 PID: 6540 Comm: syz.1.699 Not tainted 5.15.189-syzkaller #0 [ 233.445574][ T6540] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.447257][ T6540] Call trace: [ 233.447781][ T6540] dump_backtrace+0x0/0x43c [ 233.448456][ T6540] show_stack+0x2c/0x3c [ 233.449054][ T6540] __dump_stack+0x30/0x40 [ 233.449688][ T6540] dump_stack_lvl+0xf8/0x160 [ 233.450355][ T6540] dump_stack+0x1c/0x5c [ 233.450995][ T6540] sysfs_create_dir_ns+0x22c/0x24c [ 233.451867][ T6540] kobject_add_internal+0x590/0xc54 [ 233.452694][ T6540] kobject_init_and_add+0x118/0x17c [ 233.453601][ T6540] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.454439][ T6540] gfs2_fill_super+0xdac/0x19e0 [ 233.455254][ T6540] get_tree_bdev+0x358/0x544 [ 233.456050][ T6540] gfs2_get_tree+0x54/0x1b4 [ 233.456796][ T6540] vfs_get_tree+0x90/0x274 [ 233.457549][ T6540] do_new_mount+0x228/0x810 [ 233.458318][ T6540] path_mount+0x5b4/0x1000 [ 233.459035][ T6540] __arm64_sys_mount+0x514/0x5e4 [ 233.459782][ T6540] invoke_syscall+0x98/0x2b8 [ 233.460482][ T6540] el0_svc_common+0x138/0x258 [ 233.461177][ T6540] do_el0_svc+0x58/0x14c [ 233.461803][ T6540] el0_svc+0x78/0x1e0 [ 233.462454][ T6540] el0t_64_sync_handler+0xcc/0xe4 [ 233.463245][ T6540] el0t_64_sync+0x1a0/0x1a4 [ 233.465448][ T6540] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.467412][ T6540] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.603639][ T6542] loop1: detected capacity change from 0 to 32768 [ 233.641808][ T6542] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.643014][ T6542] CPU: 1 PID: 6542 Comm: syz.1.700 Not tainted 5.15.189-syzkaller #0 [ 233.644228][ T6542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.645735][ T6542] Call trace: [ 233.646198][ T6542] dump_backtrace+0x0/0x43c [ 233.646833][ T6542] show_stack+0x2c/0x3c [ 233.647415][ T6542] __dump_stack+0x30/0x40 [ 233.648038][ T6542] dump_stack_lvl+0xf8/0x160 [ 233.648729][ T6542] dump_stack+0x1c/0x5c [ 233.649364][ T6542] sysfs_create_dir_ns+0x22c/0x24c [ 233.650173][ T6542] kobject_add_internal+0x590/0xc54 [ 233.651050][ T6542] kobject_init_and_add+0x118/0x17c [ 233.651901][ T6542] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.652642][ T6542] gfs2_fill_super+0xdac/0x19e0 [ 233.653491][ T6542] get_tree_bdev+0x358/0x544 [ 233.654273][ T6542] gfs2_get_tree+0x54/0x1b4 [ 233.655013][ T6542] vfs_get_tree+0x90/0x274 [ 233.655708][ T6542] do_new_mount+0x228/0x810 [ 233.656431][ T6542] path_mount+0x5b4/0x1000 [ 233.657115][ T6542] __arm64_sys_mount+0x514/0x5e4 [ 233.657896][ T6542] invoke_syscall+0x98/0x2b8 [ 233.658614][ T6542] el0_svc_common+0x138/0x258 [ 233.659320][ T6542] do_el0_svc+0x58/0x14c [ 233.659971][ T6542] el0_svc+0x78/0x1e0 [ 233.660580][ T6542] el0t_64_sync_handler+0xcc/0xe4 [ 233.661361][ T6542] el0t_64_sync+0x1a0/0x1a4 [ 233.665452][ T6542] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.667343][ T6542] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.801230][ T6544] loop1: detected capacity change from 0 to 32768 [ 233.808377][ T6544] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.809721][ T6544] CPU: 0 PID: 6544 Comm: syz.1.701 Not tainted 5.15.189-syzkaller #0 [ 233.810945][ T6544] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.812549][ T6544] Call trace: [ 233.813037][ T6544] dump_backtrace+0x0/0x43c [ 233.813695][ T6544] show_stack+0x2c/0x3c [ 233.814325][ T6544] __dump_stack+0x30/0x40 [ 233.814935][ T6544] dump_stack_lvl+0xf8/0x160 [ 233.815599][ T6544] dump_stack+0x1c/0x5c [ 233.816169][ T6544] sysfs_create_dir_ns+0x22c/0x24c [ 233.816885][ T6544] kobject_add_internal+0x590/0xc54 [ 233.817630][ T6544] kobject_init_and_add+0x118/0x17c [ 233.818466][ T6544] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.819283][ T6544] gfs2_fill_super+0xdac/0x19e0 [ 233.820092][ T6544] get_tree_bdev+0x358/0x544 [ 233.820846][ T6544] gfs2_get_tree+0x54/0x1b4 [ 233.821563][ T6544] vfs_get_tree+0x90/0x274 [ 233.822179][ T6544] do_new_mount+0x228/0x810 [ 233.822898][ T6544] path_mount+0x5b4/0x1000 [ 233.823598][ T6544] __arm64_sys_mount+0x514/0x5e4 [ 233.824413][ T6544] invoke_syscall+0x98/0x2b8 [ 233.825111][ T6544] el0_svc_common+0x138/0x258 [ 233.825887][ T6544] do_el0_svc+0x58/0x14c [ 233.826553][ T6544] el0_svc+0x78/0x1e0 [ 233.827165][ T6544] el0t_64_sync_handler+0xcc/0xe4 [ 233.827933][ T6544] el0t_64_sync+0x1a0/0x1a4 [ 233.828784][ T6544] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.830754][ T6544] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.962390][ T6546] loop1: detected capacity change from 0 to 32768 [ 233.969678][ T6546] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.970842][ T6546] CPU: 1 PID: 6546 Comm: syz.1.702 Not tainted 5.15.189-syzkaller #0 [ 233.972180][ T6546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.973734][ T6546] Call trace: [ 233.974227][ T6546] dump_backtrace+0x0/0x43c [ 233.974929][ T6546] show_stack+0x2c/0x3c [ 233.975560][ T6546] __dump_stack+0x30/0x40 [ 233.976202][ T6546] dump_stack_lvl+0xf8/0x160 [ 233.976880][ T6546] dump_stack+0x1c/0x5c [ 233.977546][ T6546] sysfs_create_dir_ns+0x22c/0x24c [ 233.978326][ T6546] kobject_add_internal+0x590/0xc54 [ 233.979162][ T6546] kobject_init_and_add+0x118/0x17c [ 233.980058][ T6546] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.980822][ T6546] gfs2_fill_super+0xdac/0x19e0 [ 233.981602][ T6546] get_tree_bdev+0x358/0x544 [ 233.982325][ T6546] gfs2_get_tree+0x54/0x1b4 [ 233.983038][ T6546] vfs_get_tree+0x90/0x274 [ 233.983748][ T6546] do_new_mount+0x228/0x810 [ 233.984498][ T6546] path_mount+0x5b4/0x1000 [ 233.985266][ T6546] __arm64_sys_mount+0x514/0x5e4 [ 233.986023][ T6546] invoke_syscall+0x98/0x2b8 [ 233.986776][ T6546] el0_svc_common+0x138/0x258 [ 233.987564][ T6546] do_el0_svc+0x58/0x14c [ 233.988229][ T6546] el0_svc+0x78/0x1e0 [ 233.988836][ T6546] el0t_64_sync_handler+0xcc/0xe4 [ 233.989656][ T6546] el0t_64_sync+0x1a0/0x1a4 [ 233.990479][ T6546] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.992531][ T6546] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.127166][ T6548] loop1: detected capacity change from 0 to 32768 [ 234.159699][ T6548] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.161000][ T6548] CPU: 1 PID: 6548 Comm: syz.1.703 Not tainted 5.15.189-syzkaller #0 [ 234.162308][ T6548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.163804][ T6548] Call trace: [ 234.164338][ T6548] dump_backtrace+0x0/0x43c [ 234.165073][ T6548] show_stack+0x2c/0x3c [ 234.165744][ T6548] __dump_stack+0x30/0x40 [ 234.166430][ T6548] dump_stack_lvl+0xf8/0x160 [ 234.167133][ T6548] dump_stack+0x1c/0x5c [ 234.167804][ T6548] sysfs_create_dir_ns+0x22c/0x24c [ 234.168622][ T6548] kobject_add_internal+0x590/0xc54 [ 234.169481][ T6548] kobject_init_and_add+0x118/0x17c [ 234.170361][ T6548] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.171124][ T6548] gfs2_fill_super+0xdac/0x19e0 [ 234.171871][ T6548] get_tree_bdev+0x358/0x544 [ 234.172636][ T6548] gfs2_get_tree+0x54/0x1b4 [ 234.173405][ T6548] vfs_get_tree+0x90/0x274 [ 234.174061][ T6548] do_new_mount+0x228/0x810 [ 234.174792][ T6548] path_mount+0x5b4/0x1000 [ 234.175490][ T6548] __arm64_sys_mount+0x514/0x5e4 [ 234.176274][ T6548] invoke_syscall+0x98/0x2b8 [ 234.177000][ T6548] el0_svc_common+0x138/0x258 [ 234.177822][ T6548] do_el0_svc+0x58/0x14c [ 234.178521][ T6548] el0_svc+0x78/0x1e0 [ 234.179190][ T6548] el0t_64_sync_handler+0xcc/0xe4 [ 234.180040][ T6548] el0t_64_sync+0x1a0/0x1a4 [ 234.182467][ T6548] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.196002][ T6548] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.417553][ T6550] loop1: detected capacity change from 0 to 32768 [ 234.424543][ T6550] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.425765][ T6550] CPU: 0 PID: 6550 Comm: syz.1.704 Not tainted 5.15.189-syzkaller #0 [ 234.426901][ T6550] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.428288][ T6550] Call trace: [ 234.428765][ T6550] dump_backtrace+0x0/0x43c [ 234.429526][ T6550] show_stack+0x2c/0x3c [ 234.430176][ T6550] __dump_stack+0x30/0x40 [ 234.430882][ T6550] dump_stack_lvl+0xf8/0x160 [ 234.431586][ T6550] dump_stack+0x1c/0x5c [ 234.432260][ T6550] sysfs_create_dir_ns+0x22c/0x24c [ 234.433056][ T6550] kobject_add_internal+0x590/0xc54 [ 234.433859][ T6550] kobject_init_and_add+0x118/0x17c [ 234.434692][ T6550] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.435426][ T6550] gfs2_fill_super+0xdac/0x19e0 [ 234.436177][ T6550] get_tree_bdev+0x358/0x544 [ 234.436883][ T6550] gfs2_get_tree+0x54/0x1b4 [ 234.437560][ T6550] vfs_get_tree+0x90/0x274 [ 234.438226][ T6550] do_new_mount+0x228/0x810 [ 234.438905][ T6550] path_mount+0x5b4/0x1000 [ 234.439584][ T6550] __arm64_sys_mount+0x514/0x5e4 [ 234.440313][ T6550] invoke_syscall+0x98/0x2b8 [ 234.441077][ T6550] el0_svc_common+0x138/0x258 [ 234.441802][ T6550] do_el0_svc+0x58/0x14c [ 234.442516][ T6550] el0_svc+0x78/0x1e0 [ 234.443145][ T6550] el0t_64_sync_handler+0xcc/0xe4 [ 234.443892][ T6550] el0t_64_sync+0x1a0/0x1a4 [ 234.444800][ T6550] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.446735][ T6550] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.575041][ T6552] loop1: detected capacity change from 0 to 32768 [ 234.582116][ T6552] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.583216][ T6552] CPU: 1 PID: 6552 Comm: syz.1.705 Not tainted 5.15.189-syzkaller #0 [ 234.584402][ T6552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.585778][ T6552] Call trace: [ 234.586340][ T6552] dump_backtrace+0x0/0x43c [ 234.587126][ T6552] show_stack+0x2c/0x3c [ 234.587815][ T6552] __dump_stack+0x30/0x40 [ 234.588502][ T6552] dump_stack_lvl+0xf8/0x160 [ 234.589289][ T6552] dump_stack+0x1c/0x5c [ 234.589977][ T6552] sysfs_create_dir_ns+0x22c/0x24c [ 234.590865][ T6552] kobject_add_internal+0x590/0xc54 [ 234.591715][ T6552] kobject_init_and_add+0x118/0x17c [ 234.592571][ T6552] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.593335][ T6552] gfs2_fill_super+0xdac/0x19e0 [ 234.594103][ T6552] get_tree_bdev+0x358/0x544 [ 234.594821][ T6552] gfs2_get_tree+0x54/0x1b4 [ 234.595490][ T6552] vfs_get_tree+0x90/0x274 [ 234.596159][ T6552] do_new_mount+0x228/0x810 [ 234.596854][ T6552] path_mount+0x5b4/0x1000 [ 234.597496][ T6552] __arm64_sys_mount+0x514/0x5e4 [ 234.598202][ T6552] invoke_syscall+0x98/0x2b8 [ 234.598995][ T6552] el0_svc_common+0x138/0x258 [ 234.599809][ T6552] do_el0_svc+0x58/0x14c [ 234.600546][ T6552] el0_svc+0x78/0x1e0 [ 234.601245][ T6552] el0t_64_sync_handler+0xcc/0xe4 [ 234.602105][ T6552] el0t_64_sync+0x1a0/0x1a4 [ 234.604422][ T6552] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.606454][ T6552] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.739578][ T6554] loop1: detected capacity change from 0 to 32768 [ 234.784547][ T6554] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.785977][ T6554] CPU: 1 PID: 6554 Comm: syz.1.706 Not tainted 5.15.189-syzkaller #0 [ 234.787126][ T6554] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.788622][ T6554] Call trace: [ 234.789093][ T6554] dump_backtrace+0x0/0x43c [ 234.789749][ T6554] show_stack+0x2c/0x3c [ 234.790344][ T6554] __dump_stack+0x30/0x40 [ 234.790971][ T6554] dump_stack_lvl+0xf8/0x160 [ 234.791742][ T6554] dump_stack+0x1c/0x5c [ 234.792391][ T6554] sysfs_create_dir_ns+0x22c/0x24c [ 234.793193][ T6554] kobject_add_internal+0x590/0xc54 [ 234.793955][ T6554] kobject_init_and_add+0x118/0x17c [ 234.794822][ T6554] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.795550][ T6554] gfs2_fill_super+0xdac/0x19e0 [ 234.796282][ T6554] get_tree_bdev+0x358/0x544 [ 234.797010][ T6554] gfs2_get_tree+0x54/0x1b4 [ 234.797759][ T6554] vfs_get_tree+0x90/0x274 [ 234.798450][ T6554] do_new_mount+0x228/0x810 [ 234.799149][ T6554] path_mount+0x5b4/0x1000 [ 234.799827][ T6554] __arm64_sys_mount+0x514/0x5e4 [ 234.800475][ T6554] invoke_syscall+0x98/0x2b8 [ 234.801107][ T6554] el0_svc_common+0x138/0x258 [ 234.801786][ T6554] do_el0_svc+0x58/0x14c [ 234.802522][ T6554] el0_svc+0x78/0x1e0 [ 234.803155][ T6554] el0t_64_sync_handler+0xcc/0xe4 [ 234.804032][ T6554] el0t_64_sync+0x1a0/0x1a4 [ 234.806227][ T6554] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.808705][ T6554] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.936794][ T6556] loop1: detected capacity change from 0 to 32768 [ 234.971001][ T6556] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.972199][ T6556] CPU: 0 PID: 6556 Comm: syz.1.707 Not tainted 5.15.189-syzkaller #0 [ 234.973424][ T6556] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.975052][ T6556] Call trace: [ 234.975557][ T6556] dump_backtrace+0x0/0x43c [ 234.976292][ T6556] show_stack+0x2c/0x3c [ 234.976947][ T6556] __dump_stack+0x30/0x40 [ 234.977564][ T6556] dump_stack_lvl+0xf8/0x160 [ 234.978208][ T6556] dump_stack+0x1c/0x5c [ 234.978919][ T6556] sysfs_create_dir_ns+0x22c/0x24c [ 234.979769][ T6556] kobject_add_internal+0x590/0xc54 [ 234.980642][ T6556] kobject_init_and_add+0x118/0x17c [ 234.981533][ T6556] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.982331][ T6556] gfs2_fill_super+0xdac/0x19e0 [ 234.983101][ T6556] get_tree_bdev+0x358/0x544 [ 234.983832][ T6556] gfs2_get_tree+0x54/0x1b4 [ 234.984519][ T6556] vfs_get_tree+0x90/0x274 [ 234.985153][ T6556] do_new_mount+0x228/0x810 [ 234.985782][ T6556] path_mount+0x5b4/0x1000 [ 234.986442][ T6556] __arm64_sys_mount+0x514/0x5e4 [ 234.987204][ T6556] invoke_syscall+0x98/0x2b8 [ 234.987943][ T6556] el0_svc_common+0x138/0x258 [ 234.988702][ T6556] do_el0_svc+0x58/0x14c [ 234.989390][ T6556] el0_svc+0x78/0x1e0 [ 234.990029][ T6556] el0t_64_sync_handler+0xcc/0xe4 [ 234.990783][ T6556] el0t_64_sync+0x1a0/0x1a4 [ 234.992217][ T6556] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.994345][ T6556] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.123238][ T6558] loop1: detected capacity change from 0 to 32768 [ 235.130461][ T6558] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.131666][ T6558] CPU: 1 PID: 6558 Comm: syz.1.708 Not tainted 5.15.189-syzkaller #0 [ 235.132974][ T6558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 235.134572][ T6558] Call trace: [ 235.135109][ T6558] dump_backtrace+0x0/0x43c [ 235.135880][ T6558] show_stack+0x2c/0x3c [ 235.136595][ T6558] __dump_stack+0x30/0x40 [ 235.137302][ T6558] dump_stack_lvl+0xf8/0x160 [ 235.138058][ T6558] dump_stack+0x1c/0x5c [ 235.138759][ T6558] sysfs_create_dir_ns+0x22c/0x24c [ 235.139582][ T6558] kobject_add_internal+0x590/0xc54 [ 235.140391][ T6558] kobject_init_and_add+0x118/0x17c [ 235.141263][ T6558] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.141981][ T6558] gfs2_fill_super+0xdac/0x19e0 [ 235.142713][ T6558] get_tree_bdev+0x358/0x544 [ 235.143385][ T6558] gfs2_get_tree+0x54/0x1b4 [ 235.144184][ T6558] vfs_get_tree+0x90/0x274 [ 235.144845][ T6558] do_new_mount+0x228/0x810 [ 235.145539][ T6558] path_mount+0x5b4/0x1000 [ 235.146232][ T6558] __arm64_sys_mount+0x514/0x5e4 [ 235.147003][ T6558] invoke_syscall+0x98/0x2b8 [ 235.147696][ T6558] el0_svc_common+0x138/0x258 [ 235.148518][ T6558] do_el0_svc+0x58/0x14c [ 235.149230][ T6558] el0_svc+0x78/0x1e0 [ 235.149932][ T6558] el0t_64_sync_handler+0xcc/0xe4 [ 235.150792][ T6558] el0t_64_sync+0x1a0/0x1a4 [ 235.151671][ T6558] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.153725][ T6558] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.285580][ T6560] loop1: detected capacity change from 0 to 32768 [ 235.319850][ T6560] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.320987][ T6560] CPU: 1 PID: 6560 Comm: syz.1.709 Not tainted 5.15.189-syzkaller #0 [ 235.322264][ T6560] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 235.323980][ T6560] Call trace: [ 235.324532][ T6560] dump_backtrace+0x0/0x43c [ 235.325311][ T6560] show_stack+0x2c/0x3c [ 235.326020][ T6560] __dump_stack+0x30/0x40 [ 235.326709][ T6560] dump_stack_lvl+0xf8/0x160 [ 235.327455][ T6560] dump_stack+0x1c/0x5c [ 235.328138][ T6560] sysfs_create_dir_ns+0x22c/0x24c [ 235.328918][ T6560] kobject_add_internal+0x590/0xc54 [ 235.329751][ T6560] kobject_init_and_add+0x118/0x17c [ 235.330533][ T6560] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.331208][ T6560] gfs2_fill_super+0xdac/0x19e0 [ 235.331922][ T6560] get_tree_bdev+0x358/0x544 [ 235.332574][ T6560] gfs2_get_tree+0x54/0x1b4 [ 235.333204][ T6560] vfs_get_tree+0x90/0x274 [ 235.333880][ T6560] do_new_mount+0x228/0x810 [ 235.334551][ T6560] path_mount+0x5b4/0x1000 [ 235.335242][ T6560] __arm64_sys_mount+0x514/0x5e4 [ 235.335988][ T6560] invoke_syscall+0x98/0x2b8 [ 235.336627][ T6560] el0_svc_common+0x138/0x258 [ 235.337360][ T6560] do_el0_svc+0x58/0x14c [ 235.338015][ T6560] el0_svc+0x78/0x1e0 [ 235.338644][ T6560] el0t_64_sync_handler+0xcc/0xe4 [ 235.339426][ T6560] el0t_64_sync+0x1a0/0x1a4 [ 235.340395][ T6560] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.342416][ T6560] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.368403][ T27] INFO: task kworker/0:1H:149 blocked for more than 143 seconds. [ 235.369718][ T27] Not tainted 5.15.189-syzkaller #0 [ 235.370628][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 235.372035][ T27] task:kworker/0:1H state:D stack: 0 pid: 149 ppid: 2 flags:0x00000008 [ 235.373476][ T27] Workqueue: glock_workqueue glock_work_func [ 235.374480][ T27] Call trace: [ 235.375038][ T27] __switch_to+0x2f4/0x558 [ 235.375799][ T27] __schedule+0xe00/0x1c0c [ 235.376504][ T27] schedule+0x11c/0x1c8 [ 235.377216][ T27] rwsem_down_write_slowpath+0xcb8/0x13f4 [ 235.378188][ T27] down_write+0xe8/0x12c [ 235.379096][ T27] freeze_super+0x54/0x374 [ 235.379787][ T27] freeze_go_sync+0x128/0x31c [ 235.380511][ T27] do_xmote+0x2ec/0xf90 [ 235.381147][ T27] run_queue+0x3fc/0x6c0 [ 235.381783][ T27] glock_work_func+0x208/0x458 [ 235.382575][ T27] process_one_work+0x79c/0x1140 [ 235.383334][ T27] worker_thread+0x8f4/0x101c [ 235.384078][ T27] kthread+0x374/0x454 [ 235.384743][ T27] ret_from_fork+0x10/0x20 [ 235.385460][ T27] INFO: task syz.0.16:5102 blocked for more than 143 seconds. [ 235.386571][ T27] Not tainted 5.15.189-syzkaller #0 [ 235.387538][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 235.389069][ T27] task:syz.0.16 state:D stack: 0 pid: 5102 ppid: 4982 flags:0x00000009 [ 235.390530][ T27] Call trace: [ 235.391070][ T27] __switch_to+0x2f4/0x558 [ 235.391777][ T27] __schedule+0xe00/0x1c0c [ 235.392522][ T27] schedule+0x11c/0x1c8 [ 235.393197][ T27] schedule_timeout+0xb4/0x2c8 [ 235.393982][ T27] do_wait_for_common+0x1fc/0x35c [ 235.394830][ T27] wait_for_completion+0x48/0x60 [ 235.395633][ T27] flush_workqueue+0x4b8/0x1024 [ 235.396379][ T27] gfs2_gl_hash_clear+0xd0/0x2cc [ 235.397150][ T27] gfs2_fill_super+0x111c/0x19e0 [ 235.397954][ T27] get_tree_bdev+0x358/0x544 [ 235.399111][ T27] gfs2_get_tree+0x54/0x1b4 [ 235.399811][ T27] vfs_get_tree+0x90/0x274 [ 235.400497][ T27] do_new_mount+0x228/0x810 [ 235.401201][ T27] path_mount+0x5b4/0x1000 [ 235.401911][ T27] __arm64_sys_mount+0x514/0x5e4 [ 235.402704][ T27] invoke_syscall+0x98/0x2b8 [ 235.403486][ T27] el0_svc_common+0x138/0x258 [ 235.404266][ T27] do_el0_svc+0x58/0x14c [ 235.404985][ T27] el0_svc+0x78/0x1e0 [ 235.405665][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 235.406491][ T27] el0t_64_sync+0x1a0/0x1a4 [ 235.407285][ T27] [ 235.407285][ T27] Showing all locks held in the system: [ 235.410332][ T27] 1 lock held by khungtaskd/27: [ 235.411301][ T27] #0: ffff800014341360 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 235.412983][ T27] 3 locks held by kworker/0:1H/149: [ 235.413799][ T27] #0: ffff0000c6c9d938 ((wq_completion)glock_workqueue){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 [ 235.415464][ T27] #1: ffff80001bec7c00 ((work_completion)(&(&gl->gl_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 [ 235.417445][ T27] #2: ffff0000c835a0e0 (&type->s_umount_key#52){+.+.}-{3:3}, at: freeze_super+0x54/0x374 [ 235.419525][ T27] 2 locks held by getty/3806: [ 235.420317][ T27] #0: ffff0000d550a098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 235.421819][ T27] #1: ffff80001bd4e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 235.423508][ T27] 1 lock held by syz.0.16/5102: [ 235.424300][ T27] #0: ffff0000c835a0e0 (&type->s_umount_key#51/1){+.+.}-{3:3}, at: alloc_super+0x1a8/0x824 [ 235.425860][ T27] 2 locks held by udevd/5124: [ 235.426610][ T27] [ 235.427033][ T27] ============================================= [ 235.427033][ T27] [ 235.429173][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 235.430204][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.189-syzkaller #0 [ 235.431393][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 235.432905][ T27] Call trace: [ 235.433383][ T27] dump_backtrace+0x0/0x43c [ 235.434065][ T27] show_stack+0x2c/0x3c [ 235.434653][ T27] __dump_stack+0x30/0x40 [ 235.435269][ T27] dump_stack_lvl+0xf8/0x160 [ 235.435902][ T27] dump_stack+0x1c/0x5c [ 235.436497][ T27] panic+0x2e4/0x854 [ 235.437080][ T27] hung_task_panic+0x0/0x2c [ 235.437728][ T27] kthread+0x374/0x454 [ 235.438345][ T27] ret_from_fork+0x10/0x20 [ 235.438971][ T27] SMP: stopping secondary CPUs [ 235.439657][ T27] Kernel Offset: disabled [ 235.440324][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 235.441163][ T27] Memory Limit: none [ 235.771900][ T27] Rebooting in 86400 seconds..