] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 217.841597][ T6208] Call trace: [ 217.842125][ T6208] dump_backtrace+0x0/0x43c [ 217.842853][ T6208] show_stack+0x2c/0x3c [ 217.843548][ T6208] __dump_stack+0x30/0x40 [ 217.844273][ T6208] dump_stack_lvl+0xf8/0x160 [ 217.845044][ T6208] dump_stack+0x1c/0x5c [ 217.845729][ T6208] sysfs_create_dir_ns+0x22c/0x24c [ 217.846587][ T6208] kobject_add_internal+0x590/0xc54 [ 217.847387][ T6208] kobject_init_and_add+0x118/0x17c [ 217.848227][ T6208] gfs2_sys_fs_add+0x1dc/0x3d8 [ 217.848994][ T6208] gfs2_fill_super+0xdac/0x19e0 [ 217.849760][ T6208] get_tree_bdev+0x358/0x544 [ 217.850404][ T6208] gfs2_get_tree+0x54/0x1b4 [ 217.851050][ T6208] vfs_get_tree+0x90/0x274 [ 217.851779][ T6208] do_new_mount+0x228/0x810 [ 217.852493][ T6208] path_mount+0x5b4/0x1000 [ 217.853208][ T6208] __arm64_sys_mount+0x514/0x5e4 [ 217.853970][ T6208] invoke_syscall+0x98/0x2b8 [ 217.854701][ T6208] el0_svc_common+0x138/0x258 [ 217.855466][ T6208] do_el0_svc+0x58/0x14c [ 217.856162][ T6208] el0_svc+0x78/0x1e0 [ 217.856775][ T6208] el0t_64_sync_handler+0xcc/0xe4 [ 217.857532][ T6208] el0t_64_sync+0x1a0/0x1a4 [ 217.858415][ T6208] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.860601][ T6208] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.032198][ T6210] chnl_net:caif_netlink_parms(): no params data found [ 218.051081][ T6210] bridge0: port 1(bridge_slave_0) entered blocking state [ 218.052279][ T6210] bridge0: port 1(bridge_slave_0) entered disabled state [ 218.053694][ T6210] device bridge_slave_0 entered promiscuous mode [ 218.056281][ T6210] bridge0: port 2(bridge_slave_1) entered blocking state [ 218.057330][ T6210] bridge0: port 2(bridge_slave_1) entered disabled state [ 218.058727][ T6210] device bridge_slave_1 entered promiscuous mode [ 218.066950][ T6210] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 218.069416][ T6210] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 218.078436][ T6210] team0: Port device team_slave_0 added [ 218.080231][ T6210] team0: Port device team_slave_1 added [ 218.087390][ T6210] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 218.088487][ T6210] 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. [ 218.092737][ T6210] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 218.095174][ T6210] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 218.096275][ T6210] 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. [ 218.099942][ T6210] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 218.146277][ T6210] device hsr_slave_0 entered promiscuous mode [ 218.165444][ T6210] device hsr_slave_1 entered promiscuous mode [ 218.204983][ T6210] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 218.206242][ T6210] Cannot create hsr debugfs directory [ 218.246199][ T6210] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 218.698242][ T6210] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 218.759886][ T6210] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 218.788886][ T6210] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 218.918439][ T6210] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 218.982517][ T6210] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 219.016214][ T6210] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 219.056503][ T6210] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 219.137748][ T6210] 8021q: adding VLAN 0 to HW filter on device bond0 [ 219.141656][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 219.143225][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 219.146898][ T6210] 8021q: adding VLAN 0 to HW filter on device team0 [ 219.149361][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 219.151044][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 219.152553][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 219.153670][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 219.156322][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 219.159879][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 219.161788][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 219.163247][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 219.164302][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 219.168242][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 219.171045][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 219.173873][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 219.177597][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 219.179171][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 219.181913][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 219.184150][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 219.191026][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 219.192574][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 219.195945][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 219.197509][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 219.199994][ T6210] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 219.242780][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 219.244067][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 219.249169][ T6210] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 219.256179][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 219.257801][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 219.264457][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 219.267336][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 219.268931][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 219.270333][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 219.277362][ T6210] device veth0_vlan entered promiscuous mode [ 219.281053][ T6210] device veth1_vlan entered promiscuous mode [ 219.288858][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 219.290465][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 219.291946][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 219.294002][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 219.297468][ T6210] device veth0_macvtap entered promiscuous mode [ 219.300041][ T6210] device veth1_macvtap entered promiscuous mode [ 219.305317][ T6210] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 219.306963][ T6210] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 219.308620][ T6210] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 219.310295][ T6210] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 219.312391][ T6210] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 219.313460][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 219.316272][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 219.317679][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 219.319356][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 219.325235][ T6210] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 219.326771][ T6210] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 219.328329][ T6210] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 219.329974][ T6210] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 219.332066][ T6210] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 219.333159][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 219.336437][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 219.339284][ T6210] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 219.340664][ T6210] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 219.342013][ T6210] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 219.343349][ T6210] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 219.369967][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 219.372143][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 219.378444][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 219.382014][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 219.383210][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 219.384974][ T599] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 219.529301][ T6228] loop1: detected capacity change from 0 to 32768 [ 219.539227][ T6228] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.540377][ T6228] CPU: 1 PID: 6228 Comm: syz.1.617 Not tainted syzkaller #0 [ 219.541521][ T6228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 219.542939][ T6228] Call trace: [ 219.543398][ T6228] dump_backtrace+0x0/0x43c [ 219.544114][ T6228] show_stack+0x2c/0x3c [ 219.544752][ T6228] __dump_stack+0x30/0x40 [ 219.545512][ T6228] dump_stack_lvl+0xf8/0x160 [ 219.546319][ T6228] dump_stack+0x1c/0x5c [ 219.547024][ T6228] sysfs_create_dir_ns+0x22c/0x24c [ 219.547838][ T6228] kobject_add_internal+0x590/0xc54 [ 219.548659][ T6228] kobject_init_and_add+0x118/0x17c [ 219.549487][ T6228] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.550261][ T6228] gfs2_fill_super+0xdac/0x19e0 [ 219.551031][ T6228] get_tree_bdev+0x358/0x544 [ 219.551730][ T6228] gfs2_get_tree+0x54/0x1b4 [ 219.552398][ T6228] vfs_get_tree+0x90/0x274 [ 219.553067][ T6228] do_new_mount+0x228/0x810 [ 219.553766][ T6228] path_mount+0x5b4/0x1000 [ 219.554485][ T6228] __arm64_sys_mount+0x514/0x5e4 [ 219.555350][ T6228] invoke_syscall+0x98/0x2b8 [ 219.556092][ T6228] el0_svc_common+0x138/0x258 [ 219.556848][ T6228] do_el0_svc+0x58/0x14c [ 219.557544][ T6228] el0_svc+0x78/0x1e0 [ 219.558166][ T6228] el0t_64_sync_handler+0xcc/0xe4 [ 219.558974][ T6228] el0t_64_sync+0x1a0/0x1a4 [ 219.561912][ T6228] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.563782][ T6228] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.704566][ T6230] loop1: detected capacity change from 0 to 32768 [ 219.769920][ T6230] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.771216][ T6230] CPU: 0 PID: 6230 Comm: syz.1.618 Not tainted syzkaller #0 [ 219.772334][ T6230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 219.773837][ T6230] Call trace: [ 219.774379][ T6230] dump_backtrace+0x0/0x43c [ 219.775056][ T6230] show_stack+0x2c/0x3c [ 219.775737][ T6230] __dump_stack+0x30/0x40 [ 219.776418][ T6230] dump_stack_lvl+0xf8/0x160 [ 219.777191][ T6230] dump_stack+0x1c/0x5c [ 219.777921][ T6230] sysfs_create_dir_ns+0x22c/0x24c [ 219.778755][ T6230] kobject_add_internal+0x590/0xc54 [ 219.779567][ T6230] kobject_init_and_add+0x118/0x17c [ 219.780382][ T6230] gfs2_sys_fs_add+0x1dc/0x3d8 [ 219.781167][ T6230] gfs2_fill_super+0xdac/0x19e0 [ 219.781906][ T6230] get_tree_bdev+0x358/0x544 [ 219.782611][ T6230] gfs2_get_tree+0x54/0x1b4 [ 219.783361][ T6230] vfs_get_tree+0x90/0x274 [ 219.784094][ T6230] do_new_mount+0x228/0x810 [ 219.784801][ T6230] path_mount+0x5b4/0x1000 [ 219.785530][ T6230] __arm64_sys_mount+0x514/0x5e4 [ 219.786359][ T6230] invoke_syscall+0x98/0x2b8 [ 219.787109][ T6230] el0_svc_common+0x138/0x258 [ 219.787792][ T6230] do_el0_svc+0x58/0x14c [ 219.788500][ T6230] el0_svc+0x78/0x1e0 [ 219.789156][ T6230] el0t_64_sync_handler+0xcc/0xe4 [ 219.789986][ T6230] el0t_64_sync+0x1a0/0x1a4 [ 219.795158][ T6230] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.797775][ T6230] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.977359][ T6232] loop1: detected capacity change from 0 to 32768 [ 220.010378][ T1621] device hsr_slave_0 left promiscuous mode [ 220.025226][ T4159] Bluetooth: hci2: command 0x0409 tx timeout [ 220.033310][ T6232] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.034492][ T6232] CPU: 1 PID: 6232 Comm: syz.1.619 Not tainted syzkaller #0 [ 220.035602][ T6232] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.037264][ T6232] Call trace: [ 220.037791][ T6232] dump_backtrace+0x0/0x43c [ 220.038522][ T6232] show_stack+0x2c/0x3c [ 220.039194][ T6232] __dump_stack+0x30/0x40 [ 220.039849][ T6232] dump_stack_lvl+0xf8/0x160 [ 220.040553][ T6232] dump_stack+0x1c/0x5c [ 220.041198][ T6232] sysfs_create_dir_ns+0x22c/0x24c [ 220.042040][ T6232] kobject_add_internal+0x590/0xc54 [ 220.042827][ T6232] kobject_init_and_add+0x118/0x17c [ 220.043586][ T6232] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.044332][ T6232] gfs2_fill_super+0xdac/0x19e0 [ 220.045085][ T6232] get_tree_bdev+0x358/0x544 [ 220.045794][ T6232] gfs2_get_tree+0x54/0x1b4 [ 220.046470][ T6232] vfs_get_tree+0x90/0x274 [ 220.047194][ T6232] do_new_mount+0x228/0x810 [ 220.047896][ T6232] path_mount+0x5b4/0x1000 [ 220.048567][ T6232] __arm64_sys_mount+0x514/0x5e4 [ 220.049317][ T6232] invoke_syscall+0x98/0x2b8 [ 220.050027][ T6232] el0_svc_common+0x138/0x258 [ 220.050727][ T6232] do_el0_svc+0x58/0x14c [ 220.051384][ T6232] el0_svc+0x78/0x1e0 [ 220.052018][ T6232] el0t_64_sync_handler+0xcc/0xe4 [ 220.052843][ T6232] el0t_64_sync+0x1a0/0x1a4 [ 220.055290][ T6232] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.057292][ T6232] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.057322][ T1621] device hsr_slave_1 left promiscuous mode [ 220.145729][ T1621] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 220.146919][ T1621] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 220.149929][ T1621] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 220.151134][ T1621] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 220.152548][ T1621] device bridge_slave_1 left promiscuous mode [ 220.153613][ T1621] bridge0: port 2(bridge_slave_1) entered disabled state [ 220.190467][ T6234] loop1: detected capacity change from 0 to 32768 [ 220.195578][ T1621] device bridge_slave_0 left promiscuous mode [ 220.196706][ T1621] bridge0: port 1(bridge_slave_0) entered disabled state [ 220.300146][ T6234] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.301415][ T6234] CPU: 0 PID: 6234 Comm: syz.1.620 Not tainted syzkaller #0 [ 220.302566][ T6234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.304270][ T6234] Call trace: [ 220.304734][ T6234] dump_backtrace+0x0/0x43c [ 220.305415][ T6234] show_stack+0x2c/0x3c [ 220.306050][ T6234] __dump_stack+0x30/0x40 [ 220.306736][ T6234] dump_stack_lvl+0xf8/0x160 [ 220.307430][ T6234] dump_stack+0x1c/0x5c [ 220.307998][ T6234] sysfs_create_dir_ns+0x22c/0x24c [ 220.308811][ T6234] kobject_add_internal+0x590/0xc54 [ 220.309666][ T6234] kobject_init_and_add+0x118/0x17c [ 220.310469][ T6234] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.311223][ T6234] gfs2_fill_super+0xdac/0x19e0 [ 220.312057][ T6234] get_tree_bdev+0x358/0x544 [ 220.312814][ T6234] gfs2_get_tree+0x54/0x1b4 [ 220.313540][ T6234] vfs_get_tree+0x90/0x274 [ 220.314268][ T6234] do_new_mount+0x228/0x810 [ 220.315014][ T6234] path_mount+0x5b4/0x1000 [ 220.315682][ T6234] __arm64_sys_mount+0x514/0x5e4 [ 220.316489][ T6234] invoke_syscall+0x98/0x2b8 [ 220.317205][ T6234] el0_svc_common+0x138/0x258 [ 220.317978][ T6234] do_el0_svc+0x58/0x14c [ 220.318631][ T6234] el0_svc+0x78/0x1e0 [ 220.319248][ T6234] el0t_64_sync_handler+0xcc/0xe4 [ 220.319993][ T6234] el0t_64_sync+0x1a0/0x1a4 [ 220.321037][ T6234] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.323048][ T6234] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.345677][ T1621] device veth1_macvtap left promiscuous mode [ 220.346684][ T1621] device veth0_macvtap left promiscuous mode [ 220.347612][ T1621] device veth1_vlan left promiscuous mode [ 220.348481][ T1621] device veth0_vlan left promiscuous mode 1970/01/01 00:03:40 executed programs: 607 [ 220.482731][ T6236] loop1: detected capacity change from 0 to 32768 [ 220.490872][ T1621] team0 (unregistering): Port device team_slave_1 removed [ 220.506406][ T6236] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.507609][ T6236] CPU: 1 PID: 6236 Comm: syz.1.621 Not tainted syzkaller #0 [ 220.508726][ T6236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.510153][ T6236] Call trace: [ 220.510622][ T6236] dump_backtrace+0x0/0x43c [ 220.511244][ T6236] show_stack+0x2c/0x3c [ 220.511842][ T6236] __dump_stack+0x30/0x40 [ 220.512449][ T6236] dump_stack_lvl+0xf8/0x160 [ 220.513109][ T6236] dump_stack+0x1c/0x5c [ 220.513727][ T6236] sysfs_create_dir_ns+0x22c/0x24c [ 220.514506][ T6236] kobject_add_internal+0x590/0xc54 [ 220.515317][ T6236] kobject_init_and_add+0x118/0x17c [ 220.516203][ T6236] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.516960][ T6236] gfs2_fill_super+0xdac/0x19e0 [ 220.517780][ T6236] get_tree_bdev+0x358/0x544 [ 220.518518][ T6236] gfs2_get_tree+0x54/0x1b4 [ 220.519263][ T6236] vfs_get_tree+0x90/0x274 [ 220.519959][ T6236] do_new_mount+0x228/0x810 [ 220.520640][ T6236] path_mount+0x5b4/0x1000 [ 220.521379][ T6236] __arm64_sys_mount+0x514/0x5e4 [ 220.522102][ T6236] invoke_syscall+0x98/0x2b8 [ 220.522784][ T6236] el0_svc_common+0x138/0x258 [ 220.523528][ T6236] do_el0_svc+0x58/0x14c [ 220.524200][ T6236] el0_svc+0x78/0x1e0 [ 220.524825][ T6236] el0t_64_sync_handler+0xcc/0xe4 [ 220.525620][ T6236] el0t_64_sync+0x1a0/0x1a4 [ 220.526707][ T6236] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.527385][ T1621] team0 (unregistering): Port device team_slave_0 removed [ 220.528591][ T6236] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.534576][ T1621] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 220.592834][ T1621] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 220.668971][ T6238] loop1: detected capacity change from 0 to 32768 [ 220.701304][ T1621] bond0 (unregistering): Released all slaves [ 220.746308][ T6238] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.747739][ T6238] CPU: 0 PID: 6238 Comm: syz.1.622 Not tainted syzkaller #0 [ 220.748950][ T6238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.750489][ T6238] Call trace: [ 220.750972][ T6238] dump_backtrace+0x0/0x43c [ 220.751695][ T6238] show_stack+0x2c/0x3c [ 220.752330][ T6238] __dump_stack+0x30/0x40 [ 220.752999][ T6238] dump_stack_lvl+0xf8/0x160 [ 220.753714][ T6238] dump_stack+0x1c/0x5c [ 220.754427][ T6238] sysfs_create_dir_ns+0x22c/0x24c [ 220.755263][ T6238] kobject_add_internal+0x590/0xc54 [ 220.756110][ T6238] kobject_init_and_add+0x118/0x17c [ 220.756953][ T6238] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.757679][ T6238] gfs2_fill_super+0xdac/0x19e0 [ 220.758449][ T6238] get_tree_bdev+0x358/0x544 [ 220.759207][ T6238] gfs2_get_tree+0x54/0x1b4 [ 220.759931][ T6238] vfs_get_tree+0x90/0x274 [ 220.760653][ T6238] do_new_mount+0x228/0x810 [ 220.761345][ T6238] path_mount+0x5b4/0x1000 [ 220.762032][ T6238] __arm64_sys_mount+0x514/0x5e4 [ 220.762761][ T6238] invoke_syscall+0x98/0x2b8 [ 220.763490][ T6238] el0_svc_common+0x138/0x258 [ 220.764256][ T6238] do_el0_svc+0x58/0x14c [ 220.765034][ T6238] el0_svc+0x78/0x1e0 [ 220.765613][ T6238] el0t_64_sync_handler+0xcc/0xe4 [ 220.766496][ T6238] el0t_64_sync+0x1a0/0x1a4 [ 220.768852][ T6238] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.770874][ T6238] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.924438][ T6240] loop1: detected capacity change from 0 to 32768 [ 220.982130][ T6240] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.983394][ T6240] CPU: 0 PID: 6240 Comm: syz.1.623 Not tainted syzkaller #0 [ 220.984464][ T6240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 220.986013][ T6240] Call trace: [ 220.986496][ T6240] dump_backtrace+0x0/0x43c [ 220.987227][ T6240] show_stack+0x2c/0x3c [ 220.987806][ T6240] __dump_stack+0x30/0x40 [ 220.988439][ T6240] dump_stack_lvl+0xf8/0x160 [ 220.989152][ T6240] dump_stack+0x1c/0x5c [ 220.989774][ T6240] sysfs_create_dir_ns+0x22c/0x24c [ 220.990567][ T6240] kobject_add_internal+0x590/0xc54 [ 220.991306][ T6240] kobject_init_and_add+0x118/0x17c [ 220.992034][ T6240] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.992690][ T6240] gfs2_fill_super+0xdac/0x19e0 [ 220.993400][ T6240] get_tree_bdev+0x358/0x544 [ 220.994082][ T6240] gfs2_get_tree+0x54/0x1b4 [ 220.994757][ T6240] vfs_get_tree+0x90/0x274 [ 220.995442][ T6240] do_new_mount+0x228/0x810 [ 220.996137][ T6240] path_mount+0x5b4/0x1000 [ 220.996841][ T6240] __arm64_sys_mount+0x514/0x5e4 [ 220.997569][ T6240] invoke_syscall+0x98/0x2b8 [ 220.998326][ T6240] el0_svc_common+0x138/0x258 [ 220.998992][ T6240] do_el0_svc+0x58/0x14c [ 220.999652][ T6240] el0_svc+0x78/0x1e0 [ 221.000223][ T6240] el0t_64_sync_handler+0xcc/0xe4 [ 221.000955][ T6240] el0t_64_sync+0x1a0/0x1a4 [ 221.003463][ T6240] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.005739][ T6240] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.137906][ T6242] loop1: detected capacity change from 0 to 32768 [ 221.180420][ T6242] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.181534][ T6242] CPU: 1 PID: 6242 Comm: syz.1.624 Not tainted syzkaller #0 [ 221.182689][ T6242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 221.184387][ T6242] Call trace: [ 221.184918][ T6242] dump_backtrace+0x0/0x43c [ 221.185676][ T6242] show_stack+0x2c/0x3c [ 221.186360][ T6242] __dump_stack+0x30/0x40 [ 221.187092][ T6242] dump_stack_lvl+0xf8/0x160 [ 221.187830][ T6242] dump_stack+0x1c/0x5c [ 221.188509][ T6242] sysfs_create_dir_ns+0x22c/0x24c [ 221.189327][ T6242] kobject_add_internal+0x590/0xc54 [ 221.190241][ T6242] kobject_init_and_add+0x118/0x17c [ 221.191116][ T6242] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.191904][ T6242] gfs2_fill_super+0xdac/0x19e0 [ 221.192691][ T6242] get_tree_bdev+0x358/0x544 [ 221.193422][ T6242] gfs2_get_tree+0x54/0x1b4 [ 221.194116][ T6242] vfs_get_tree+0x90/0x274 [ 221.194865][ T6242] do_new_mount+0x228/0x810 [ 221.195601][ T6242] path_mount+0x5b4/0x1000 [ 221.196343][ T6242] __arm64_sys_mount+0x514/0x5e4 [ 221.197181][ T6242] invoke_syscall+0x98/0x2b8 [ 221.197949][ T6242] el0_svc_common+0x138/0x258 [ 221.198659][ T6242] do_el0_svc+0x58/0x14c [ 221.199325][ T6242] el0_svc+0x78/0x1e0 [ 221.199965][ T6242] el0t_64_sync_handler+0xcc/0xe4 [ 221.200745][ T6242] el0t_64_sync+0x1a0/0x1a4 [ 221.203141][ T6242] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.205065][ T6242] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.341507][ T6244] loop1: detected capacity change from 0 to 32768 [ 221.386427][ T6244] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.387645][ T6244] CPU: 0 PID: 6244 Comm: syz.1.625 Not tainted syzkaller #0 [ 221.388723][ T6244] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 221.390267][ T6244] Call trace: [ 221.390804][ T6244] dump_backtrace+0x0/0x43c [ 221.391562][ T6244] show_stack+0x2c/0x3c [ 221.392215][ T6244] __dump_stack+0x30/0x40 [ 221.392871][ T6244] dump_stack_lvl+0xf8/0x160 [ 221.393592][ T6244] dump_stack+0x1c/0x5c [ 221.394226][ T6244] sysfs_create_dir_ns+0x22c/0x24c [ 221.394964][ T6244] kobject_add_internal+0x590/0xc54 [ 221.395726][ T6244] kobject_init_and_add+0x118/0x17c [ 221.396535][ T6244] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.397232][ T6244] gfs2_fill_super+0xdac/0x19e0 [ 221.397913][ T6244] get_tree_bdev+0x358/0x544 [ 221.398598][ T6244] gfs2_get_tree+0x54/0x1b4 [ 221.399237][ T6244] vfs_get_tree+0x90/0x274 [ 221.399928][ T6244] do_new_mount+0x228/0x810 [ 221.400612][ T6244] path_mount+0x5b4/0x1000 [ 221.401270][ T6244] __arm64_sys_mount+0x514/0x5e4 [ 221.402067][ T6244] invoke_syscall+0x98/0x2b8 [ 221.402784][ T6244] el0_svc_common+0x138/0x258 [ 221.403506][ T6244] do_el0_svc+0x58/0x14c [ 221.404171][ T6244] el0_svc+0x78/0x1e0 [ 221.404809][ T6244] el0t_64_sync_handler+0xcc/0xe4 [ 221.405549][ T6244] el0t_64_sync+0x1a0/0x1a4 [ 221.407140][ T6244] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.408923][ T6244] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.543653][ T6246] loop1: detected capacity change from 0 to 32768 [ 221.620802][ T6246] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.622118][ T6246] CPU: 0 PID: 6246 Comm: syz.1.626 Not tainted syzkaller #0 [ 221.623315][ T6246] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 221.624910][ T6246] Call trace: [ 221.625387][ T6246] dump_backtrace+0x0/0x43c [ 221.626065][ T6246] show_stack+0x2c/0x3c [ 221.626730][ T6246] __dump_stack+0x30/0x40 [ 221.627461][ T6246] dump_stack_lvl+0xf8/0x160 [ 221.628231][ T6246] dump_stack+0x1c/0x5c [ 221.628852][ T6246] sysfs_create_dir_ns+0x22c/0x24c [ 221.629725][ T6246] kobject_add_internal+0x590/0xc54 [ 221.630551][ T6246] kobject_init_and_add+0x118/0x17c [ 221.631388][ T6246] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.632199][ T6246] gfs2_fill_super+0xdac/0x19e0 [ 221.632967][ T6246] get_tree_bdev+0x358/0x544 [ 221.633702][ T6246] gfs2_get_tree+0x54/0x1b4 [ 221.634379][ T6246] vfs_get_tree+0x90/0x274 [ 221.635056][ T6246] do_new_mount+0x228/0x810 [ 221.635680][ T6246] path_mount+0x5b4/0x1000 [ 221.636339][ T6246] __arm64_sys_mount+0x514/0x5e4 [ 221.637136][ T6246] invoke_syscall+0x98/0x2b8 [ 221.637850][ T6246] el0_svc_common+0x138/0x258 [ 221.638629][ T6246] do_el0_svc+0x58/0x14c [ 221.639312][ T6246] el0_svc+0x78/0x1e0 [ 221.639929][ T6246] el0t_64_sync_handler+0xcc/0xe4 [ 221.640742][ T6246] el0t_64_sync+0x1a0/0x1a4 [ 221.643346][ T6246] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.645542][ T6246] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.820452][ T6248] loop1: detected capacity change from 0 to 32768 [ 221.835023][ T6248] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.836161][ T6248] CPU: 1 PID: 6248 Comm: syz.1.627 Not tainted syzkaller #0 [ 221.837298][ T6248] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 221.838780][ T6248] Call trace: [ 221.839308][ T6248] dump_backtrace+0x0/0x43c [ 221.839989][ T6248] show_stack+0x2c/0x3c [ 221.840561][ T6248] __dump_stack+0x30/0x40 [ 221.841205][ T6248] dump_stack_lvl+0xf8/0x160 [ 221.841906][ T6248] dump_stack+0x1c/0x5c [ 221.842522][ T6248] sysfs_create_dir_ns+0x22c/0x24c [ 221.843255][ T6248] kobject_add_internal+0x590/0xc54 [ 221.844036][ T6248] kobject_init_and_add+0x118/0x17c [ 221.844783][ T6248] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.845488][ T6248] gfs2_fill_super+0xdac/0x19e0 [ 221.846232][ T6248] get_tree_bdev+0x358/0x544 [ 221.846937][ T6248] gfs2_get_tree+0x54/0x1b4 [ 221.847687][ T6248] vfs_get_tree+0x90/0x274 [ 221.848394][ T6248] do_new_mount+0x228/0x810 [ 221.849082][ T6248] path_mount+0x5b4/0x1000 [ 221.849818][ T6248] __arm64_sys_mount+0x514/0x5e4 [ 221.850591][ T6248] invoke_syscall+0x98/0x2b8 [ 221.851354][ T6248] el0_svc_common+0x138/0x258 [ 221.852080][ T6248] do_el0_svc+0x58/0x14c [ 221.852790][ T6248] el0_svc+0x78/0x1e0 [ 221.853394][ T6248] el0t_64_sync_handler+0xcc/0xe4 [ 221.854205][ T6248] el0t_64_sync+0x1a0/0x1a4 [ 221.857007][ T6248] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.858812][ T6248] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.008664][ T6250] loop1: detected capacity change from 0 to 32768 [ 222.013787][ T6250] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.015026][ T6250] CPU: 0 PID: 6250 Comm: syz.1.628 Not tainted syzkaller #0 [ 222.016127][ T6250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 222.017605][ T6250] Call trace: [ 222.018073][ T6250] dump_backtrace+0x0/0x43c [ 222.018742][ T6250] show_stack+0x2c/0x3c [ 222.019339][ T6250] __dump_stack+0x30/0x40 [ 222.020009][ T6250] dump_stack_lvl+0xf8/0x160 [ 222.020706][ T6250] dump_stack+0x1c/0x5c [ 222.021423][ T6250] sysfs_create_dir_ns+0x22c/0x24c [ 222.022273][ T6250] kobject_add_internal+0x590/0xc54 [ 222.023154][ T6250] kobject_init_and_add+0x118/0x17c [ 222.023993][ T6250] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.024666][ T6250] gfs2_fill_super+0xdac/0x19e0 [ 222.025431][ T6250] get_tree_bdev+0x358/0x544 [ 222.026109][ T6250] gfs2_get_tree+0x54/0x1b4 [ 222.026793][ T6250] vfs_get_tree+0x90/0x274 [ 222.027519][ T6250] do_new_mount+0x228/0x810 [ 222.028242][ T6250] path_mount+0x5b4/0x1000 [ 222.028914][ T6250] __arm64_sys_mount+0x514/0x5e4 [ 222.029747][ T6250] invoke_syscall+0x98/0x2b8 [ 222.030437][ T6250] el0_svc_common+0x138/0x258 [ 222.031106][ T6250] do_el0_svc+0x58/0x14c [ 222.031751][ T6250] el0_svc+0x78/0x1e0 [ 222.032407][ T6250] el0t_64_sync_handler+0xcc/0xe4 [ 222.033166][ T6250] el0t_64_sync+0x1a0/0x1a4 [ 222.037386][ T6250] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.039387][ T6250] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.117329][ T4169] Bluetooth: hci2: command 0x041b tx timeout [ 222.189978][ T6252] loop1: detected capacity change from 0 to 32768 [ 222.283968][ T6252] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.287162][ T6252] CPU: 0 PID: 6252 Comm: syz.1.629 Not tainted syzkaller #0 [ 222.288370][ T6252] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 222.290004][ T6252] Call trace: [ 222.290522][ T6252] dump_backtrace+0x0/0x43c [ 222.291243][ T6252] show_stack+0x2c/0x3c [ 222.291880][ T6252] __dump_stack+0x30/0x40 [ 222.292492][ T6252] dump_stack_lvl+0xf8/0x160 [ 222.293141][ T6252] dump_stack+0x1c/0x5c [ 222.293702][ T6252] sysfs_create_dir_ns+0x22c/0x24c [ 222.294520][ T6252] kobject_add_internal+0x590/0xc54 [ 222.295361][ T6252] kobject_init_and_add+0x118/0x17c [ 222.296213][ T6252] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.296985][ T6252] gfs2_fill_super+0xdac/0x19e0 [ 222.297701][ T6252] get_tree_bdev+0x358/0x544 [ 222.298417][ T6252] gfs2_get_tree+0x54/0x1b4 [ 222.299092][ T6252] vfs_get_tree+0x90/0x274 [ 222.299773][ T6252] do_new_mount+0x228/0x810 [ 222.300476][ T6252] path_mount+0x5b4/0x1000 [ 222.301138][ T6252] __arm64_sys_mount+0x514/0x5e4 [ 222.301852][ T6252] invoke_syscall+0x98/0x2b8 [ 222.302590][ T6252] el0_svc_common+0x138/0x258 [ 222.303334][ T6252] do_el0_svc+0x58/0x14c [ 222.303991][ T6252] el0_svc+0x78/0x1e0 [ 222.304584][ T6252] el0t_64_sync_handler+0xcc/0xe4 [ 222.305313][ T6252] el0t_64_sync+0x1a0/0x1a4 [ 222.307717][ T6252] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.309611][ T6252] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.450740][ T6254] loop1: detected capacity change from 0 to 32768 [ 222.540774][ T6254] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.542091][ T6254] CPU: 0 PID: 6254 Comm: syz.1.630 Not tainted syzkaller #0 [ 222.543273][ T6254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 222.544709][ T6254] Call trace: [ 222.545266][ T6254] dump_backtrace+0x0/0x43c [ 222.545959][ T6254] show_stack+0x2c/0x3c [ 222.546584][ T6254] __dump_stack+0x30/0x40 [ 222.547252][ T6254] dump_stack_lvl+0xf8/0x160 [ 222.547952][ T6254] dump_stack+0x1c/0x5c [ 222.548569][ T6254] sysfs_create_dir_ns+0x22c/0x24c [ 222.549329][ T6254] kobject_add_internal+0x590/0xc54 [ 222.550037][ T6254] kobject_init_and_add+0x118/0x17c [ 222.550800][ T6254] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.551619][ T6254] gfs2_fill_super+0xdac/0x19e0 [ 222.552362][ T6254] get_tree_bdev+0x358/0x544 [ 222.553049][ T6254] gfs2_get_tree+0x54/0x1b4 [ 222.553759][ T6254] vfs_get_tree+0x90/0x274 [ 222.554406][ T6254] do_new_mount+0x228/0x810 [ 222.555076][ T6254] path_mount+0x5b4/0x1000 [ 222.555762][ T6254] __arm64_sys_mount+0x514/0x5e4 [ 222.556577][ T6254] invoke_syscall+0x98/0x2b8 [ 222.557306][ T6254] el0_svc_common+0x138/0x258 [ 222.557999][ T6254] do_el0_svc+0x58/0x14c [ 222.558608][ T6254] el0_svc+0x78/0x1e0 [ 222.559180][ T6254] el0t_64_sync_handler+0xcc/0xe4 [ 222.559967][ T6254] el0t_64_sync+0x1a0/0x1a4 [ 222.574001][ T6254] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.576800][ T6254] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.805549][ T6256] loop1: detected capacity change from 0 to 32768 [ 222.810345][ T6256] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.811508][ T6256] CPU: 1 PID: 6256 Comm: syz.1.631 Not tainted syzkaller #0 [ 222.812659][ T6256] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 222.814299][ T6256] Call trace: [ 222.814841][ T6256] dump_backtrace+0x0/0x43c [ 222.815605][ T6256] show_stack+0x2c/0x3c [ 222.816299][ T6256] __dump_stack+0x30/0x40 [ 222.817022][ T6256] dump_stack_lvl+0xf8/0x160 [ 222.817783][ T6256] dump_stack+0x1c/0x5c [ 222.818476][ T6256] sysfs_create_dir_ns+0x22c/0x24c [ 222.819250][ T6256] kobject_add_internal+0x590/0xc54 [ 222.820083][ T6256] kobject_init_and_add+0x118/0x17c [ 222.820910][ T6256] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.821649][ T6256] gfs2_fill_super+0xdac/0x19e0 [ 222.822355][ T6256] get_tree_bdev+0x358/0x544 [ 222.823013][ T6256] gfs2_get_tree+0x54/0x1b4 [ 222.823677][ T6256] vfs_get_tree+0x90/0x274 [ 222.824367][ T6256] do_new_mount+0x228/0x810 [ 222.825057][ T6256] path_mount+0x5b4/0x1000 [ 222.825708][ T6256] __arm64_sys_mount+0x514/0x5e4 [ 222.826417][ T6256] invoke_syscall+0x98/0x2b8 [ 222.827108][ T6256] el0_svc_common+0x138/0x258 [ 222.827841][ T6256] do_el0_svc+0x58/0x14c [ 222.828455][ T6256] el0_svc+0x78/0x1e0 [ 222.829058][ T6256] el0t_64_sync_handler+0xcc/0xe4 [ 222.829858][ T6256] el0t_64_sync+0x1a0/0x1a4 [ 222.830782][ T6256] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.832772][ T6256] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.096440][ T6258] loop1: detected capacity change from 0 to 32768 [ 223.151029][ T6258] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.152210][ T6258] CPU: 1 PID: 6258 Comm: syz.1.632 Not tainted syzkaller #0 [ 223.153245][ T6258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 223.154714][ T6258] Call trace: [ 223.155189][ T6258] dump_backtrace+0x0/0x43c [ 223.155879][ T6258] show_stack+0x2c/0x3c [ 223.156509][ T6258] __dump_stack+0x30/0x40 [ 223.157149][ T6258] dump_stack_lvl+0xf8/0x160 [ 223.157867][ T6258] dump_stack+0x1c/0x5c [ 223.158499][ T6258] sysfs_create_dir_ns+0x22c/0x24c [ 223.159207][ T6258] kobject_add_internal+0x590/0xc54 [ 223.159939][ T6258] kobject_init_and_add+0x118/0x17c [ 223.160742][ T6258] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.161533][ T6258] gfs2_fill_super+0xdac/0x19e0 [ 223.162302][ T6258] get_tree_bdev+0x358/0x544 [ 223.163062][ T6258] gfs2_get_tree+0x54/0x1b4 [ 223.163803][ T6258] vfs_get_tree+0x90/0x274 [ 223.164597][ T6258] do_new_mount+0x228/0x810 [ 223.165352][ T6258] path_mount+0x5b4/0x1000 [ 223.166052][ T6258] __arm64_sys_mount+0x514/0x5e4 [ 223.166852][ T6258] invoke_syscall+0x98/0x2b8 [ 223.167622][ T6258] el0_svc_common+0x138/0x258 [ 223.168388][ T6258] do_el0_svc+0x58/0x14c [ 223.169072][ T6258] el0_svc+0x78/0x1e0 [ 223.169721][ T6258] el0t_64_sync_handler+0xcc/0xe4 [ 223.170559][ T6258] el0t_64_sync+0x1a0/0x1a4 [ 223.172045][ T6258] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.173744][ T6258] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.311501][ T6260] loop1: detected capacity change from 0 to 32768 [ 223.356220][ T6260] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.357466][ T6260] CPU: 0 PID: 6260 Comm: syz.1.633 Not tainted syzkaller #0 [ 223.358680][ T6260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 223.360321][ T6260] Call trace: [ 223.360885][ T6260] dump_backtrace+0x0/0x43c [ 223.361647][ T6260] show_stack+0x2c/0x3c [ 223.362292][ T6260] __dump_stack+0x30/0x40 [ 223.362938][ T6260] dump_stack_lvl+0xf8/0x160 [ 223.363656][ T6260] dump_stack+0x1c/0x5c [ 223.364273][ T6260] sysfs_create_dir_ns+0x22c/0x24c [ 223.365022][ T6260] kobject_add_internal+0x590/0xc54 [ 223.365752][ T6260] kobject_init_and_add+0x118/0x17c [ 223.366497][ T6260] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.367249][ T6260] gfs2_fill_super+0xdac/0x19e0 [ 223.368013][ T6260] get_tree_bdev+0x358/0x544 [ 223.368699][ T6260] gfs2_get_tree+0x54/0x1b4 [ 223.369381][ T6260] vfs_get_tree+0x90/0x274 [ 223.369990][ T6260] do_new_mount+0x228/0x810 [ 223.370638][ T6260] path_mount+0x5b4/0x1000 [ 223.371382][ T6260] __arm64_sys_mount+0x514/0x5e4 [ 223.372205][ T6260] invoke_syscall+0x98/0x2b8 [ 223.372956][ T6260] el0_svc_common+0x138/0x258 [ 223.373701][ T6260] do_el0_svc+0x58/0x14c [ 223.374435][ T6260] el0_svc+0x78/0x1e0 [ 223.375114][ T6260] el0t_64_sync_handler+0xcc/0xe4 [ 223.375922][ T6260] el0t_64_sync+0x1a0/0x1a4 [ 223.378731][ T6260] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.380691][ T6260] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.524162][ T6262] loop1: detected capacity change from 0 to 32768 [ 223.529179][ T6262] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.530498][ T6262] CPU: 0 PID: 6262 Comm: syz.1.634 Not tainted syzkaller #0 [ 223.531600][ T6262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 223.533141][ T6262] Call trace: [ 223.533609][ T6262] dump_backtrace+0x0/0x43c [ 223.534249][ T6262] show_stack+0x2c/0x3c [ 223.534862][ T6262] __dump_stack+0x30/0x40 [ 223.535530][ T6262] dump_stack_lvl+0xf8/0x160 [ 223.536220][ T6262] dump_stack+0x1c/0x5c [ 223.536851][ T6262] sysfs_create_dir_ns+0x22c/0x24c [ 223.537655][ T6262] kobject_add_internal+0x590/0xc54 [ 223.538407][ T6262] kobject_init_and_add+0x118/0x17c [ 223.539168][ T6262] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.539858][ T6262] gfs2_fill_super+0xdac/0x19e0 [ 223.540602][ T6262] get_tree_bdev+0x358/0x544 [ 223.541244][ T6262] gfs2_get_tree+0x54/0x1b4 [ 223.541923][ T6262] vfs_get_tree+0x90/0x274 [ 223.542573][ T6262] do_new_mount+0x228/0x810 [ 223.543181][ T6262] path_mount+0x5b4/0x1000 [ 223.543814][ T6262] __arm64_sys_mount+0x514/0x5e4 [ 223.544562][ T6262] invoke_syscall+0x98/0x2b8 [ 223.545290][ T6262] el0_svc_common+0x138/0x258 [ 223.546062][ T6262] do_el0_svc+0x58/0x14c [ 223.546717][ T6262] el0_svc+0x78/0x1e0 [ 223.547329][ T6262] el0t_64_sync_handler+0xcc/0xe4 [ 223.548036][ T6262] el0t_64_sync+0x1a0/0x1a4 [ 223.550375][ T6262] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.552396][ T6262] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.689714][ T6264] loop1: detected capacity change from 0 to 32768 [ 223.694784][ T6264] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.696048][ T6264] CPU: 0 PID: 6264 Comm: syz.1.635 Not tainted syzkaller #0 [ 223.697299][ T6264] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 223.698857][ T6264] Call trace: [ 223.699390][ T6264] dump_backtrace+0x0/0x43c [ 223.700095][ T6264] show_stack+0x2c/0x3c [ 223.700764][ T6264] __dump_stack+0x30/0x40 [ 223.701468][ T6264] dump_stack_lvl+0xf8/0x160 [ 223.702230][ T6264] dump_stack+0x1c/0x5c [ 223.702897][ T6264] sysfs_create_dir_ns+0x22c/0x24c [ 223.703737][ T6264] kobject_add_internal+0x590/0xc54 [ 223.704556][ T6264] kobject_init_and_add+0x118/0x17c [ 223.705370][ T6264] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.706098][ T6264] gfs2_fill_super+0xdac/0x19e0 [ 223.706787][ T6264] get_tree_bdev+0x358/0x544 [ 223.707478][ T6264] gfs2_get_tree+0x54/0x1b4 [ 223.708211][ T6264] vfs_get_tree+0x90/0x274 [ 223.708967][ T6264] do_new_mount+0x228/0x810 [ 223.709722][ T6264] path_mount+0x5b4/0x1000 [ 223.710434][ T6264] __arm64_sys_mount+0x514/0x5e4 [ 223.711188][ T6264] invoke_syscall+0x98/0x2b8 [ 223.711870][ T6264] el0_svc_common+0x138/0x258 [ 223.712533][ T6264] do_el0_svc+0x58/0x14c [ 223.713226][ T6264] el0_svc+0x78/0x1e0 [ 223.713819][ T6264] el0t_64_sync_handler+0xcc/0xe4 [ 223.714542][ T6264] el0t_64_sync+0x1a0/0x1a4 [ 223.717711][ T6264] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.719662][ T6264] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.858696][ T6266] loop1: detected capacity change from 0 to 32768 [ 223.896368][ T6266] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.897547][ T6266] CPU: 0 PID: 6266 Comm: syz.1.636 Not tainted syzkaller #0 [ 223.898606][ T6266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 223.900070][ T6266] Call trace: [ 223.900570][ T6266] dump_backtrace+0x0/0x43c [ 223.901286][ T6266] show_stack+0x2c/0x3c [ 223.901905][ T6266] __dump_stack+0x30/0x40 [ 223.902610][ T6266] dump_stack_lvl+0xf8/0x160 [ 223.903378][ T6266] dump_stack+0x1c/0x5c [ 223.904033][ T6266] sysfs_create_dir_ns+0x22c/0x24c [ 223.904845][ T6266] kobject_add_internal+0x590/0xc54 [ 223.905684][ T6266] kobject_init_and_add+0x118/0x17c [ 223.906505][ T6266] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.907303][ T6266] gfs2_fill_super+0xdac/0x19e0 [ 223.908029][ T6266] get_tree_bdev+0x358/0x544 [ 223.908786][ T6266] gfs2_get_tree+0x54/0x1b4 [ 223.909496][ T6266] vfs_get_tree+0x90/0x274 [ 223.910189][ T6266] do_new_mount+0x228/0x810 [ 223.910889][ T6266] path_mount+0x5b4/0x1000 [ 223.911617][ T6266] __arm64_sys_mount+0x514/0x5e4 [ 223.912486][ T6266] invoke_syscall+0x98/0x2b8 [ 223.913258][ T6266] el0_svc_common+0x138/0x258 [ 223.914069][ T6266] do_el0_svc+0x58/0x14c [ 223.914786][ T6266] el0_svc+0x78/0x1e0 [ 223.915435][ T6266] el0t_64_sync_handler+0xcc/0xe4 [ 223.916272][ T6266] el0t_64_sync+0x1a0/0x1a4 [ 223.917830][ T6266] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.919851][ T6266] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.151136][ T6268] loop1: detected capacity change from 0 to 32768 [ 224.184977][ T4158] Bluetooth: hci2: command 0x040f tx timeout [ 224.205141][ T6268] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.206290][ T6268] CPU: 1 PID: 6268 Comm: syz.1.637 Not tainted syzkaller #0 [ 224.207365][ T6268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.208998][ T6268] Call trace: [ 224.209524][ T6268] dump_backtrace+0x0/0x43c [ 224.210227][ T6268] show_stack+0x2c/0x3c [ 224.210918][ T6268] __dump_stack+0x30/0x40 [ 224.211631][ T6268] dump_stack_lvl+0xf8/0x160 [ 224.212375][ T6268] dump_stack+0x1c/0x5c [ 224.213054][ T6268] sysfs_create_dir_ns+0x22c/0x24c [ 224.213861][ T6268] kobject_add_internal+0x590/0xc54 [ 224.214709][ T6268] kobject_init_and_add+0x118/0x17c [ 224.215537][ T6268] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.216315][ T6268] gfs2_fill_super+0xdac/0x19e0 [ 224.217111][ T6268] get_tree_bdev+0x358/0x544 [ 224.217921][ T6268] gfs2_get_tree+0x54/0x1b4 [ 224.218723][ T6268] vfs_get_tree+0x90/0x274 [ 224.219474][ T6268] do_new_mount+0x228/0x810 [ 224.220218][ T6268] path_mount+0x5b4/0x1000 [ 224.220913][ T6268] __arm64_sys_mount+0x514/0x5e4 [ 224.221714][ T6268] invoke_syscall+0x98/0x2b8 [ 224.222449][ T6268] el0_svc_common+0x138/0x258 [ 224.223251][ T6268] do_el0_svc+0x58/0x14c [ 224.223969][ T6268] el0_svc+0x78/0x1e0 [ 224.224586][ T6268] el0t_64_sync_handler+0xcc/0xe4 [ 224.225357][ T6268] el0t_64_sync+0x1a0/0x1a4 [ 224.226483][ T6268] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.228527][ T6268] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.371856][ T6270] loop1: detected capacity change from 0 to 32768 [ 224.418691][ T6270] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.420041][ T6270] CPU: 0 PID: 6270 Comm: syz.1.638 Not tainted syzkaller #0 [ 224.421157][ T6270] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.422543][ T6270] Call trace: [ 224.423049][ T6270] dump_backtrace+0x0/0x43c [ 224.423712][ T6270] show_stack+0x2c/0x3c [ 224.424361][ T6270] __dump_stack+0x30/0x40 [ 224.425004][ T6270] dump_stack_lvl+0xf8/0x160 [ 224.425653][ T6270] dump_stack+0x1c/0x5c [ 224.426328][ T6270] sysfs_create_dir_ns+0x22c/0x24c [ 224.427121][ T6270] kobject_add_internal+0x590/0xc54 [ 224.427905][ T6270] kobject_init_and_add+0x118/0x17c [ 224.428727][ T6270] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.429495][ T6270] gfs2_fill_super+0xdac/0x19e0 [ 224.430279][ T6270] get_tree_bdev+0x358/0x544 [ 224.431051][ T6270] gfs2_get_tree+0x54/0x1b4 [ 224.431785][ T6270] vfs_get_tree+0x90/0x274 [ 224.432489][ T6270] do_new_mount+0x228/0x810 [ 224.433209][ T6270] path_mount+0x5b4/0x1000 [ 224.433897][ T6270] __arm64_sys_mount+0x514/0x5e4 [ 224.434628][ T6270] invoke_syscall+0x98/0x2b8 [ 224.435276][ T6270] el0_svc_common+0x138/0x258 [ 224.435994][ T6270] do_el0_svc+0x58/0x14c [ 224.436653][ T6270] el0_svc+0x78/0x1e0 [ 224.437249][ T6270] el0t_64_sync_handler+0xcc/0xe4 [ 224.437998][ T6270] el0t_64_sync+0x1a0/0x1a4 [ 224.440156][ T6270] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.442003][ T6270] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.584851][ T6272] loop1: detected capacity change from 0 to 32768 [ 224.590603][ T6272] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.591790][ T6272] CPU: 0 PID: 6272 Comm: syz.1.639 Not tainted syzkaller #0 [ 224.592779][ T6272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.594259][ T6272] Call trace: [ 224.594715][ T6272] dump_backtrace+0x0/0x43c [ 224.595406][ T6272] show_stack+0x2c/0x3c [ 224.596045][ T6272] __dump_stack+0x30/0x40 [ 224.596761][ T6272] dump_stack_lvl+0xf8/0x160 [ 224.597487][ T6272] dump_stack+0x1c/0x5c [ 224.598104][ T6272] sysfs_create_dir_ns+0x22c/0x24c [ 224.598924][ T6272] kobject_add_internal+0x590/0xc54 [ 224.599712][ T6272] kobject_init_and_add+0x118/0x17c [ 224.600472][ T6272] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.601200][ T6272] gfs2_fill_super+0xdac/0x19e0 [ 224.601865][ T6272] get_tree_bdev+0x358/0x544 [ 224.602645][ T6272] gfs2_get_tree+0x54/0x1b4 [ 224.603401][ T6272] vfs_get_tree+0x90/0x274 [ 224.604012][ T6272] do_new_mount+0x228/0x810 [ 224.604674][ T6272] path_mount+0x5b4/0x1000 [ 224.605342][ T6272] __arm64_sys_mount+0x514/0x5e4 [ 224.606060][ T6272] invoke_syscall+0x98/0x2b8 [ 224.606705][ T6272] el0_svc_common+0x138/0x258 [ 224.607376][ T6272] do_el0_svc+0x58/0x14c [ 224.608116][ T6272] el0_svc+0x78/0x1e0 [ 224.608744][ T6272] el0t_64_sync_handler+0xcc/0xe4 [ 224.609496][ T6272] el0t_64_sync+0x1a0/0x1a4 [ 224.610764][ T6272] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.612731][ T6272] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.750471][ T6274] loop1: detected capacity change from 0 to 32768 [ 224.786425][ T6274] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.787668][ T6274] CPU: 1 PID: 6274 Comm: syz.1.640 Not tainted syzkaller #0 [ 224.788683][ T6274] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.790069][ T6274] Call trace: [ 224.790507][ T6274] dump_backtrace+0x0/0x43c [ 224.791166][ T6274] show_stack+0x2c/0x3c [ 224.791790][ T6274] __dump_stack+0x30/0x40 [ 224.792408][ T6274] dump_stack_lvl+0xf8/0x160 [ 224.793123][ T6274] dump_stack+0x1c/0x5c [ 224.793741][ T6274] sysfs_create_dir_ns+0x22c/0x24c [ 224.794492][ T6274] kobject_add_internal+0x590/0xc54 [ 224.795269][ T6274] kobject_init_and_add+0x118/0x17c [ 224.796046][ T6274] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.796737][ T6274] gfs2_fill_super+0xdac/0x19e0 [ 224.797451][ T6274] get_tree_bdev+0x358/0x544 [ 224.798140][ T6274] gfs2_get_tree+0x54/0x1b4 [ 224.798856][ T6274] vfs_get_tree+0x90/0x274 [ 224.799511][ T6274] do_new_mount+0x228/0x810 [ 224.800190][ T6274] path_mount+0x5b4/0x1000 [ 224.800807][ T6274] __arm64_sys_mount+0x514/0x5e4 [ 224.801673][ T6274] invoke_syscall+0x98/0x2b8 [ 224.802466][ T6274] el0_svc_common+0x138/0x258 [ 224.803247][ T6274] do_el0_svc+0x58/0x14c [ 224.803947][ T6274] el0_svc+0x78/0x1e0 [ 224.804607][ T6274] el0t_64_sync_handler+0xcc/0xe4 [ 224.805415][ T6274] el0t_64_sync+0x1a0/0x1a4 [ 224.807749][ T6274] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.809786][ T6274] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.946135][ T6276] loop1: detected capacity change from 0 to 32768 [ 224.991921][ T6276] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.993146][ T6276] CPU: 0 PID: 6276 Comm: syz.1.641 Not tainted syzkaller #0 [ 224.994262][ T6276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 224.995889][ T6276] Call trace: [ 224.996465][ T6276] dump_backtrace+0x0/0x43c [ 224.997155][ T6276] show_stack+0x2c/0x3c [ 224.997760][ T6276] __dump_stack+0x30/0x40 [ 224.998380][ T6276] dump_stack_lvl+0xf8/0x160 [ 224.999068][ T6276] dump_stack+0x1c/0x5c [ 224.999681][ T6276] sysfs_create_dir_ns+0x22c/0x24c [ 225.000407][ T6276] kobject_add_internal+0x590/0xc54 [ 225.001191][ T6276] kobject_init_and_add+0x118/0x17c [ 225.002007][ T6276] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.002736][ T6276] gfs2_fill_super+0xdac/0x19e0 [ 225.003455][ T6276] get_tree_bdev+0x358/0x544 [ 225.004149][ T6276] gfs2_get_tree+0x54/0x1b4 [ 225.004852][ T6276] vfs_get_tree+0x90/0x274 [ 225.005563][ T6276] do_new_mount+0x228/0x810 [ 225.006273][ T6276] path_mount+0x5b4/0x1000 [ 225.006921][ T6276] __arm64_sys_mount+0x514/0x5e4 [ 225.007697][ T6276] invoke_syscall+0x98/0x2b8 [ 225.008431][ T6276] el0_svc_common+0x138/0x258 [ 225.009185][ T6276] do_el0_svc+0x58/0x14c [ 225.009848][ T6276] el0_svc+0x78/0x1e0 [ 225.010552][ T6276] el0t_64_sync_handler+0xcc/0xe4 [ 225.011371][ T6276] el0t_64_sync+0x1a0/0x1a4 [ 225.013155][ T6276] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.015196][ T6276] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.153405][ T6278] loop1: detected capacity change from 0 to 32768 [ 225.211246][ T6278] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.212410][ T6278] CPU: 0 PID: 6278 Comm: syz.1.642 Not tainted syzkaller #0 [ 225.213462][ T6278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 225.214875][ T6278] Call trace: [ 225.215367][ T6278] dump_backtrace+0x0/0x43c [ 225.216119][ T6278] show_stack+0x2c/0x3c [ 225.216791][ T6278] __dump_stack+0x30/0x40 [ 225.217500][ T6278] dump_stack_lvl+0xf8/0x160 [ 225.218236][ T6278] dump_stack+0x1c/0x5c [ 225.218855][ T6278] sysfs_create_dir_ns+0x22c/0x24c [ 225.219755][ T6278] kobject_add_internal+0x590/0xc54 [ 225.220548][ T6278] kobject_init_and_add+0x118/0x17c [ 225.221340][ T6278] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.222100][ T6278] gfs2_fill_super+0xdac/0x19e0 [ 225.222825][ T6278] get_tree_bdev+0x358/0x544 [ 225.223524][ T6278] gfs2_get_tree+0x54/0x1b4 [ 225.224184][ T6278] vfs_get_tree+0x90/0x274 [ 225.224866][ T6278] do_new_mount+0x228/0x810 [ 225.225537][ T6278] path_mount+0x5b4/0x1000 [ 225.226170][ T6278] __arm64_sys_mount+0x514/0x5e4 [ 225.226906][ T6278] invoke_syscall+0x98/0x2b8 [ 225.227589][ T6278] el0_svc_common+0x138/0x258 [ 225.228366][ T6278] do_el0_svc+0x58/0x14c [ 225.229054][ T6278] el0_svc+0x78/0x1e0 [ 225.229739][ T6278] el0t_64_sync_handler+0xcc/0xe4 [ 225.230551][ T6278] el0t_64_sync+0x1a0/0x1a4 [ 225.232306][ T6278] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.234304][ T6278] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.368092][ T6280] loop1: detected capacity change from 0 to 32768 [ 225.437110][ T6280] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.438328][ T6280] CPU: 1 PID: 6280 Comm: syz.1.643 Not tainted syzkaller #0 [ 225.439460][ T6280] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 225.440950][ T6280] Call trace: [ 225.441403][ T6280] dump_backtrace+0x0/0x43c [ 225.442116][ T6280] show_stack+0x2c/0x3c [ 225.442708][ T6280] __dump_stack+0x30/0x40 [ 225.443339][ T6280] dump_stack_lvl+0xf8/0x160 [ 225.444066][ T6280] dump_stack+0x1c/0x5c [ 225.444682][ T6280] sysfs_create_dir_ns+0x22c/0x24c [ 225.445492][ T6280] kobject_add_internal+0x590/0xc54 [ 225.446264][ T6280] kobject_init_and_add+0x118/0x17c [ 225.447013][ T6280] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.447720][ T6280] gfs2_fill_super+0xdac/0x19e0 [ 225.448444][ T6280] get_tree_bdev+0x358/0x544 [ 225.449188][ T6280] gfs2_get_tree+0x54/0x1b4 [ 225.449959][ T6280] vfs_get_tree+0x90/0x274 [ 225.450624][ T6280] do_new_mount+0x228/0x810 [ 225.451355][ T6280] path_mount+0x5b4/0x1000 [ 225.452065][ T6280] __arm64_sys_mount+0x514/0x5e4 [ 225.452878][ T6280] invoke_syscall+0x98/0x2b8 [ 225.453616][ T6280] el0_svc_common+0x138/0x258 [ 225.454380][ T6280] do_el0_svc+0x58/0x14c [ 225.455078][ T6280] el0_svc+0x78/0x1e0 [ 225.455767][ T6280] el0t_64_sync_handler+0xcc/0xe4 [ 225.456581][ T6280] el0t_64_sync+0x1a0/0x1a4 [ 225.457969][ T6280] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.459918][ T6280] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:45 executed programs: 630 [ 225.612152][ T6282] loop1: detected capacity change from 0 to 32768 [ 225.646268][ T6282] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.647578][ T6282] CPU: 0 PID: 6282 Comm: syz.1.644 Not tainted syzkaller #0 [ 225.648810][ T6282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 225.650457][ T6282] Call trace: [ 225.651035][ T6282] dump_backtrace+0x0/0x43c [ 225.651817][ T6282] show_stack+0x2c/0x3c [ 225.652454][ T6282] __dump_stack+0x30/0x40 [ 225.653125][ T6282] dump_stack_lvl+0xf8/0x160 [ 225.653851][ T6282] dump_stack+0x1c/0x5c [ 225.654472][ T6282] sysfs_create_dir_ns+0x22c/0x24c [ 225.655250][ T6282] kobject_add_internal+0x590/0xc54 [ 225.656059][ T6282] kobject_init_and_add+0x118/0x17c [ 225.656887][ T6282] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.657666][ T6282] gfs2_fill_super+0xdac/0x19e0 [ 225.658416][ T6282] get_tree_bdev+0x358/0x544 [ 225.659148][ T6282] gfs2_get_tree+0x54/0x1b4 [ 225.659798][ T6282] vfs_get_tree+0x90/0x274 [ 225.660449][ T6282] do_new_mount+0x228/0x810 [ 225.661098][ T6282] path_mount+0x5b4/0x1000 [ 225.661772][ T6282] __arm64_sys_mount+0x514/0x5e4 [ 225.662526][ T6282] invoke_syscall+0x98/0x2b8 [ 225.663225][ T6282] el0_svc_common+0x138/0x258 [ 225.663931][ T6282] do_el0_svc+0x58/0x14c [ 225.664653][ T6282] el0_svc+0x78/0x1e0 [ 225.665260][ T6282] el0t_64_sync_handler+0xcc/0xe4 [ 225.666063][ T6282] el0t_64_sync+0x1a0/0x1a4 [ 225.668709][ T6282] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.670818][ T6282] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.803913][ T6284] loop1: detected capacity change from 0 to 32768 [ 225.856316][ T6284] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.857609][ T6284] CPU: 1 PID: 6284 Comm: syz.1.645 Not tainted syzkaller #0 [ 225.858780][ T6284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 225.860477][ T6284] Call trace: [ 225.861000][ T6284] dump_backtrace+0x0/0x43c [ 225.861758][ T6284] show_stack+0x2c/0x3c [ 225.862418][ T6284] __dump_stack+0x30/0x40 [ 225.863028][ T6284] dump_stack_lvl+0xf8/0x160 [ 225.863769][ T6284] dump_stack+0x1c/0x5c [ 225.864437][ T6284] sysfs_create_dir_ns+0x22c/0x24c [ 225.865289][ T6284] kobject_add_internal+0x590/0xc54 [ 225.866172][ T6284] kobject_init_and_add+0x118/0x17c [ 225.867039][ T6284] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.867777][ T6284] gfs2_fill_super+0xdac/0x19e0 [ 225.868553][ T6284] get_tree_bdev+0x358/0x544 [ 225.869288][ T6284] gfs2_get_tree+0x54/0x1b4 [ 225.869986][ T6284] vfs_get_tree+0x90/0x274 [ 225.870651][ T6284] do_new_mount+0x228/0x810 [ 225.871338][ T6284] path_mount+0x5b4/0x1000 [ 225.871993][ T6284] __arm64_sys_mount+0x514/0x5e4 [ 225.872697][ T6284] invoke_syscall+0x98/0x2b8 [ 225.873341][ T6284] el0_svc_common+0x138/0x258 [ 225.874100][ T6284] do_el0_svc+0x58/0x14c [ 225.874754][ T6284] el0_svc+0x78/0x1e0 [ 225.875375][ T6284] el0t_64_sync_handler+0xcc/0xe4 [ 225.876168][ T6284] el0t_64_sync+0x1a0/0x1a4 [ 225.878525][ T6284] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.880465][ T6284] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.014445][ T6286] loop1: detected capacity change from 0 to 32768 [ 226.022449][ T6286] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.023545][ T6286] CPU: 1 PID: 6286 Comm: syz.1.646 Not tainted syzkaller #0 [ 226.024686][ T6286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.026329][ T6286] Call trace: [ 226.026846][ T6286] dump_backtrace+0x0/0x43c [ 226.027596][ T6286] show_stack+0x2c/0x3c [ 226.028279][ T6286] __dump_stack+0x30/0x40 [ 226.028961][ T6286] dump_stack_lvl+0xf8/0x160 [ 226.029700][ T6286] dump_stack+0x1c/0x5c [ 226.030418][ T6286] sysfs_create_dir_ns+0x22c/0x24c [ 226.031278][ T6286] kobject_add_internal+0x590/0xc54 [ 226.032181][ T6286] kobject_init_and_add+0x118/0x17c [ 226.033018][ T6286] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.033771][ T6286] gfs2_fill_super+0xdac/0x19e0 [ 226.034522][ T6286] get_tree_bdev+0x358/0x544 [ 226.035265][ T6286] gfs2_get_tree+0x54/0x1b4 [ 226.035963][ T6286] vfs_get_tree+0x90/0x274 [ 226.036657][ T6286] do_new_mount+0x228/0x810 [ 226.037371][ T6286] path_mount+0x5b4/0x1000 [ 226.038036][ T6286] __arm64_sys_mount+0x514/0x5e4 [ 226.038739][ T6286] invoke_syscall+0x98/0x2b8 [ 226.039404][ T6286] el0_svc_common+0x138/0x258 [ 226.040087][ T6286] do_el0_svc+0x58/0x14c [ 226.040700][ T6286] el0_svc+0x78/0x1e0 [ 226.041301][ T6286] el0t_64_sync_handler+0xcc/0xe4 [ 226.042015][ T6286] el0t_64_sync+0x1a0/0x1a4 [ 226.044284][ T6286] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.046210][ T6286] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.181411][ T6288] loop1: detected capacity change from 0 to 32768 [ 226.190584][ T6288] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.191871][ T6288] CPU: 1 PID: 6288 Comm: syz.1.647 Not tainted syzkaller #0 [ 226.193140][ T6288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.194712][ T6288] Call trace: [ 226.195216][ T6288] dump_backtrace+0x0/0x43c [ 226.195959][ T6288] show_stack+0x2c/0x3c [ 226.196646][ T6288] __dump_stack+0x30/0x40 [ 226.197426][ T6288] dump_stack_lvl+0xf8/0x160 [ 226.198229][ T6288] dump_stack+0x1c/0x5c [ 226.198862][ T6288] sysfs_create_dir_ns+0x22c/0x24c [ 226.199608][ T6288] kobject_add_internal+0x590/0xc54 [ 226.200408][ T6288] kobject_init_and_add+0x118/0x17c [ 226.201242][ T6288] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.202057][ T6288] gfs2_fill_super+0xdac/0x19e0 [ 226.202844][ T6288] get_tree_bdev+0x358/0x544 [ 226.203569][ T6288] gfs2_get_tree+0x54/0x1b4 [ 226.204262][ T6288] vfs_get_tree+0x90/0x274 [ 226.204956][ T6288] do_new_mount+0x228/0x810 [ 226.205634][ T6288] path_mount+0x5b4/0x1000 [ 226.206333][ T6288] __arm64_sys_mount+0x514/0x5e4 [ 226.207134][ T6288] invoke_syscall+0x98/0x2b8 [ 226.207834][ T6288] el0_svc_common+0x138/0x258 [ 226.208566][ T6288] do_el0_svc+0x58/0x14c [ 226.209184][ T6288] el0_svc+0x78/0x1e0 [ 226.209816][ T6288] el0t_64_sync_handler+0xcc/0xe4 [ 226.210570][ T6288] el0t_64_sync+0x1a0/0x1a4 [ 226.211633][ T6288] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.213439][ T6288] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.265034][ T4169] Bluetooth: hci2: command 0x0419 tx timeout [ 226.353710][ T6290] loop1: detected capacity change from 0 to 32768 [ 226.421258][ T6290] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.422553][ T6290] CPU: 1 PID: 6290 Comm: syz.1.648 Not tainted syzkaller #0 [ 226.423760][ T6290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.425505][ T6290] Call trace: [ 226.426052][ T6290] dump_backtrace+0x0/0x43c [ 226.426830][ T6290] show_stack+0x2c/0x3c [ 226.427466][ T6290] __dump_stack+0x30/0x40 [ 226.428211][ T6290] dump_stack_lvl+0xf8/0x160 [ 226.428912][ T6290] dump_stack+0x1c/0x5c [ 226.429612][ T6290] sysfs_create_dir_ns+0x22c/0x24c [ 226.430442][ T6290] kobject_add_internal+0x590/0xc54 [ 226.431288][ T6290] kobject_init_and_add+0x118/0x17c [ 226.432125][ T6290] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.432919][ T6290] gfs2_fill_super+0xdac/0x19e0 [ 226.433697][ T6290] get_tree_bdev+0x358/0x544 [ 226.434480][ T6290] gfs2_get_tree+0x54/0x1b4 [ 226.435260][ T6290] vfs_get_tree+0x90/0x274 [ 226.435997][ T6290] do_new_mount+0x228/0x810 [ 226.436735][ T6290] path_mount+0x5b4/0x1000 [ 226.437481][ T6290] __arm64_sys_mount+0x514/0x5e4 [ 226.438203][ T6290] invoke_syscall+0x98/0x2b8 [ 226.438916][ T6290] el0_svc_common+0x138/0x258 [ 226.439692][ T6290] do_el0_svc+0x58/0x14c [ 226.440370][ T6290] el0_svc+0x78/0x1e0 [ 226.440980][ T6290] el0t_64_sync_handler+0xcc/0xe4 [ 226.441757][ T6290] el0t_64_sync+0x1a0/0x1a4 [ 226.444143][ T6290] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.446379][ T6290] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.583048][ T6292] loop1: detected capacity change from 0 to 32768 [ 226.617078][ T6292] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.618311][ T6292] CPU: 0 PID: 6292 Comm: syz.1.649 Not tainted syzkaller #0 [ 226.619349][ T6292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.620748][ T6292] Call trace: [ 226.621237][ T6292] dump_backtrace+0x0/0x43c [ 226.621939][ T6292] show_stack+0x2c/0x3c [ 226.622612][ T6292] __dump_stack+0x30/0x40 [ 226.623340][ T6292] dump_stack_lvl+0xf8/0x160 [ 226.624030][ T6292] dump_stack+0x1c/0x5c [ 226.624697][ T6292] sysfs_create_dir_ns+0x22c/0x24c [ 226.625471][ T6292] kobject_add_internal+0x590/0xc54 [ 226.626248][ T6292] kobject_init_and_add+0x118/0x17c [ 226.627085][ T6292] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.627868][ T6292] gfs2_fill_super+0xdac/0x19e0 [ 226.628603][ T6292] get_tree_bdev+0x358/0x544 [ 226.629242][ T6292] gfs2_get_tree+0x54/0x1b4 [ 226.629904][ T6292] vfs_get_tree+0x90/0x274 [ 226.630534][ T6292] do_new_mount+0x228/0x810 [ 226.631190][ T6292] path_mount+0x5b4/0x1000 [ 226.631864][ T6292] __arm64_sys_mount+0x514/0x5e4 [ 226.632595][ T6292] invoke_syscall+0x98/0x2b8 [ 226.633279][ T6292] el0_svc_common+0x138/0x258 [ 226.634002][ T6292] do_el0_svc+0x58/0x14c [ 226.634660][ T6292] el0_svc+0x78/0x1e0 [ 226.635249][ T6292] el0t_64_sync_handler+0xcc/0xe4 [ 226.635975][ T6292] el0t_64_sync+0x1a0/0x1a4 [ 226.637218][ T6292] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.639165][ T6292] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.827575][ T6294] loop1: detected capacity change from 0 to 32768 [ 226.835999][ T6294] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.837192][ T6294] CPU: 1 PID: 6294 Comm: syz.1.650 Not tainted syzkaller #0 [ 226.838408][ T6294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 226.840057][ T6294] Call trace: [ 226.840590][ T6294] dump_backtrace+0x0/0x43c [ 226.841364][ T6294] show_stack+0x2c/0x3c [ 226.842097][ T6294] __dump_stack+0x30/0x40 [ 226.842788][ T6294] dump_stack_lvl+0xf8/0x160 [ 226.843543][ T6294] dump_stack+0x1c/0x5c [ 226.844214][ T6294] sysfs_create_dir_ns+0x22c/0x24c [ 226.845049][ T6294] kobject_add_internal+0x590/0xc54 [ 226.845917][ T6294] kobject_init_and_add+0x118/0x17c [ 226.846773][ T6294] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.847484][ T6294] gfs2_fill_super+0xdac/0x19e0 [ 226.848252][ T6294] get_tree_bdev+0x358/0x544 [ 226.848970][ T6294] gfs2_get_tree+0x54/0x1b4 [ 226.849685][ T6294] vfs_get_tree+0x90/0x274 [ 226.850415][ T6294] do_new_mount+0x228/0x810 [ 226.851146][ T6294] path_mount+0x5b4/0x1000 [ 226.851861][ T6294] __arm64_sys_mount+0x514/0x5e4 [ 226.852641][ T6294] invoke_syscall+0x98/0x2b8 [ 226.853367][ T6294] el0_svc_common+0x138/0x258 [ 226.854159][ T6294] do_el0_svc+0x58/0x14c [ 226.854883][ T6294] el0_svc+0x78/0x1e0 [ 226.855565][ T6294] el0t_64_sync_handler+0xcc/0xe4 [ 226.856340][ T6294] el0t_64_sync+0x1a0/0x1a4 [ 226.858660][ T6294] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.860617][ T6294] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.004660][ T6296] loop1: detected capacity change from 0 to 32768 [ 227.099616][ T6296] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.100883][ T6296] CPU: 1 PID: 6296 Comm: syz.1.651 Not tainted syzkaller #0 [ 227.101961][ T6296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.103532][ T6296] Call trace: [ 227.104054][ T6296] dump_backtrace+0x0/0x43c [ 227.104779][ T6296] show_stack+0x2c/0x3c [ 227.105434][ T6296] __dump_stack+0x30/0x40 [ 227.106109][ T6296] dump_stack_lvl+0xf8/0x160 [ 227.106838][ T6296] dump_stack+0x1c/0x5c [ 227.107536][ T6296] sysfs_create_dir_ns+0x22c/0x24c [ 227.108377][ T6296] kobject_add_internal+0x590/0xc54 [ 227.109232][ T6296] kobject_init_and_add+0x118/0x17c [ 227.110076][ T6296] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.110836][ T6296] gfs2_fill_super+0xdac/0x19e0 [ 227.111601][ T6296] get_tree_bdev+0x358/0x544 [ 227.112286][ T6296] gfs2_get_tree+0x54/0x1b4 [ 227.112983][ T6296] vfs_get_tree+0x90/0x274 [ 227.113699][ T6296] do_new_mount+0x228/0x810 [ 227.114468][ T6296] path_mount+0x5b4/0x1000 [ 227.115210][ T6296] __arm64_sys_mount+0x514/0x5e4 [ 227.116015][ T6296] invoke_syscall+0x98/0x2b8 [ 227.116767][ T6296] el0_svc_common+0x138/0x258 [ 227.117498][ T6296] do_el0_svc+0x58/0x14c [ 227.118168][ T6296] el0_svc+0x78/0x1e0 [ 227.118812][ T6296] el0t_64_sync_handler+0xcc/0xe4 [ 227.119601][ T6296] el0t_64_sync+0x1a0/0x1a4 [ 227.121788][ T6296] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.123599][ T6296] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.260450][ T6298] loop1: detected capacity change from 0 to 32768 [ 227.268733][ T6298] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.269860][ T6298] CPU: 0 PID: 6298 Comm: syz.1.652 Not tainted syzkaller #0 [ 227.271034][ T6298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.272664][ T6298] Call trace: [ 227.273151][ T6298] dump_backtrace+0x0/0x43c [ 227.273821][ T6298] show_stack+0x2c/0x3c [ 227.274458][ T6298] __dump_stack+0x30/0x40 [ 227.275148][ T6298] dump_stack_lvl+0xf8/0x160 [ 227.275912][ T6298] dump_stack+0x1c/0x5c [ 227.276564][ T6298] sysfs_create_dir_ns+0x22c/0x24c [ 227.277400][ T6298] kobject_add_internal+0x590/0xc54 [ 227.278169][ T6298] kobject_init_and_add+0x118/0x17c [ 227.278937][ T6298] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.279757][ T6298] gfs2_fill_super+0xdac/0x19e0 [ 227.280524][ T6298] get_tree_bdev+0x358/0x544 [ 227.281189][ T6298] gfs2_get_tree+0x54/0x1b4 [ 227.281880][ T6298] vfs_get_tree+0x90/0x274 [ 227.282586][ T6298] do_new_mount+0x228/0x810 [ 227.283288][ T6298] path_mount+0x5b4/0x1000 [ 227.283994][ T6298] __arm64_sys_mount+0x514/0x5e4 [ 227.284786][ T6298] invoke_syscall+0x98/0x2b8 [ 227.285531][ T6298] el0_svc_common+0x138/0x258 [ 227.286284][ T6298] do_el0_svc+0x58/0x14c [ 227.286979][ T6298] el0_svc+0x78/0x1e0 [ 227.287570][ T6298] el0t_64_sync_handler+0xcc/0xe4 [ 227.288319][ T6298] el0t_64_sync+0x1a0/0x1a4 [ 227.289283][ T6298] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.291228][ T6298] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.424856][ T6300] loop1: detected capacity change from 0 to 32768 [ 227.433577][ T6300] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.434690][ T6300] CPU: 0 PID: 6300 Comm: syz.1.653 Not tainted syzkaller #0 [ 227.435859][ T6300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.437466][ T6300] Call trace: [ 227.437949][ T6300] dump_backtrace+0x0/0x43c [ 227.438697][ T6300] show_stack+0x2c/0x3c [ 227.439408][ T6300] __dump_stack+0x30/0x40 [ 227.440118][ T6300] dump_stack_lvl+0xf8/0x160 [ 227.440830][ T6300] dump_stack+0x1c/0x5c [ 227.441467][ T6300] sysfs_create_dir_ns+0x22c/0x24c [ 227.442252][ T6300] kobject_add_internal+0x590/0xc54 [ 227.443046][ T6300] kobject_init_and_add+0x118/0x17c [ 227.443869][ T6300] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.444575][ T6300] gfs2_fill_super+0xdac/0x19e0 [ 227.445350][ T6300] get_tree_bdev+0x358/0x544 [ 227.446091][ T6300] gfs2_get_tree+0x54/0x1b4 [ 227.446748][ T6300] vfs_get_tree+0x90/0x274 [ 227.447406][ T6300] do_new_mount+0x228/0x810 [ 227.448050][ T6300] path_mount+0x5b4/0x1000 [ 227.448719][ T6300] __arm64_sys_mount+0x514/0x5e4 [ 227.449386][ T6300] invoke_syscall+0x98/0x2b8 [ 227.450052][ T6300] el0_svc_common+0x138/0x258 [ 227.450719][ T6300] do_el0_svc+0x58/0x14c [ 227.451353][ T6300] el0_svc+0x78/0x1e0 [ 227.451996][ T6300] el0t_64_sync_handler+0xcc/0xe4 [ 227.452809][ T6300] el0t_64_sync+0x1a0/0x1a4 [ 227.453701][ T6300] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.456008][ T6300] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.590575][ T6302] loop1: detected capacity change from 0 to 32768 [ 227.701982][ T6302] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.703129][ T6302] CPU: 0 PID: 6302 Comm: syz.1.654 Not tainted syzkaller #0 [ 227.704349][ T6302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.705959][ T6302] Call trace: [ 227.706527][ T6302] dump_backtrace+0x0/0x43c [ 227.707253][ T6302] show_stack+0x2c/0x3c [ 227.707918][ T6302] __dump_stack+0x30/0x40 [ 227.708617][ T6302] dump_stack_lvl+0xf8/0x160 [ 227.709359][ T6302] dump_stack+0x1c/0x5c [ 227.710026][ T6302] sysfs_create_dir_ns+0x22c/0x24c [ 227.710871][ T6302] kobject_add_internal+0x590/0xc54 [ 227.711718][ T6302] kobject_init_and_add+0x118/0x17c [ 227.712638][ T6302] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.713440][ T6302] gfs2_fill_super+0xdac/0x19e0 [ 227.714275][ T6302] get_tree_bdev+0x358/0x544 [ 227.715054][ T6302] gfs2_get_tree+0x54/0x1b4 [ 227.715759][ T6302] vfs_get_tree+0x90/0x274 [ 227.716530][ T6302] do_new_mount+0x228/0x810 [ 227.717286][ T6302] path_mount+0x5b4/0x1000 [ 227.717977][ T6302] __arm64_sys_mount+0x514/0x5e4 [ 227.718662][ T6302] invoke_syscall+0x98/0x2b8 [ 227.719362][ T6302] el0_svc_common+0x138/0x258 [ 227.720094][ T6302] do_el0_svc+0x58/0x14c [ 227.720725][ T6302] el0_svc+0x78/0x1e0 [ 227.721261][ T6302] el0t_64_sync_handler+0xcc/0xe4 [ 227.722074][ T6302] el0t_64_sync+0x1a0/0x1a4 [ 227.724381][ T6302] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.726311][ T6302] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.866442][ T6304] loop1: detected capacity change from 0 to 32768 [ 227.873969][ T6304] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.875259][ T6304] CPU: 1 PID: 6304 Comm: syz.1.655 Not tainted syzkaller #0 [ 227.876407][ T6304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 227.877945][ T6304] Call trace: [ 227.878417][ T6304] dump_backtrace+0x0/0x43c [ 227.879077][ T6304] show_stack+0x2c/0x3c [ 227.879764][ T6304] __dump_stack+0x30/0x40 [ 227.880370][ T6304] dump_stack_lvl+0xf8/0x160 [ 227.881067][ T6304] dump_stack+0x1c/0x5c [ 227.881753][ T6304] sysfs_create_dir_ns+0x22c/0x24c [ 227.882525][ T6304] kobject_add_internal+0x590/0xc54 [ 227.883290][ T6304] kobject_init_and_add+0x118/0x17c [ 227.884090][ T6304] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.884781][ T6304] gfs2_fill_super+0xdac/0x19e0 [ 227.885526][ T6304] get_tree_bdev+0x358/0x544 [ 227.886184][ T6304] gfs2_get_tree+0x54/0x1b4 [ 227.886864][ T6304] vfs_get_tree+0x90/0x274 [ 227.887556][ T6304] do_new_mount+0x228/0x810 [ 227.888306][ T6304] path_mount+0x5b4/0x1000 [ 227.889057][ T6304] __arm64_sys_mount+0x514/0x5e4 [ 227.889872][ T6304] invoke_syscall+0x98/0x2b8 [ 227.890655][ T6304] el0_svc_common+0x138/0x258 [ 227.891411][ T6304] do_el0_svc+0x58/0x14c [ 227.892080][ T6304] el0_svc+0x78/0x1e0 [ 227.892705][ T6304] el0t_64_sync_handler+0xcc/0xe4 [ 227.893553][ T6304] el0t_64_sync+0x1a0/0x1a4 [ 227.894389][ T6304] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.896469][ T6304] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.029951][ T6306] loop1: detected capacity change from 0 to 32768 [ 228.076992][ T6306] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.078238][ T6306] CPU: 0 PID: 6306 Comm: syz.1.656 Not tainted syzkaller #0 [ 228.079464][ T6306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 228.081054][ T6306] Call trace: [ 228.081565][ T6306] dump_backtrace+0x0/0x43c [ 228.082271][ T6306] show_stack+0x2c/0x3c [ 228.082913][ T6306] __dump_stack+0x30/0x40 [ 228.083569][ T6306] dump_stack_lvl+0xf8/0x160 [ 228.084233][ T6306] dump_stack+0x1c/0x5c [ 228.084879][ T6306] sysfs_create_dir_ns+0x22c/0x24c [ 228.085693][ T6306] kobject_add_internal+0x590/0xc54 [ 228.086492][ T6306] kobject_init_and_add+0x118/0x17c [ 228.087308][ T6306] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.088093][ T6306] gfs2_fill_super+0xdac/0x19e0 [ 228.088857][ T6306] get_tree_bdev+0x358/0x544 [ 228.089605][ T6306] gfs2_get_tree+0x54/0x1b4 [ 228.090367][ T6306] vfs_get_tree+0x90/0x274 [ 228.091076][ T6306] do_new_mount+0x228/0x810 [ 228.091804][ T6306] path_mount+0x5b4/0x1000 [ 228.092547][ T6306] __arm64_sys_mount+0x514/0x5e4 [ 228.093346][ T6306] invoke_syscall+0x98/0x2b8 [ 228.094067][ T6306] el0_svc_common+0x138/0x258 [ 228.094745][ T6306] do_el0_svc+0x58/0x14c [ 228.095441][ T6306] el0_svc+0x78/0x1e0 [ 228.096052][ T6306] el0t_64_sync_handler+0xcc/0xe4 [ 228.096904][ T6306] el0t_64_sync+0x1a0/0x1a4 [ 228.098275][ T6306] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.100176][ T6306] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.269369][ T6308] loop1: detected capacity change from 0 to 32768 [ 228.277926][ T6308] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.279091][ T6308] CPU: 1 PID: 6308 Comm: syz.1.657 Not tainted syzkaller #0 [ 228.280190][ T6308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 228.281563][ T6308] Call trace: [ 228.282049][ T6308] dump_backtrace+0x0/0x43c [ 228.282667][ T6308] show_stack+0x2c/0x3c [ 228.283306][ T6308] __dump_stack+0x30/0x40 [ 228.284031][ T6308] dump_stack_lvl+0xf8/0x160 [ 228.284807][ T6308] dump_stack+0x1c/0x5c [ 228.285488][ T6308] sysfs_create_dir_ns+0x22c/0x24c [ 228.286343][ T6308] kobject_add_internal+0x590/0xc54 [ 228.287216][ T6308] kobject_init_and_add+0x118/0x17c [ 228.288092][ T6308] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.288858][ T6308] gfs2_fill_super+0xdac/0x19e0 [ 228.289610][ T6308] get_tree_bdev+0x358/0x544 [ 228.290390][ T6308] gfs2_get_tree+0x54/0x1b4 [ 228.291131][ T6308] vfs_get_tree+0x90/0x274 [ 228.291861][ T6308] do_new_mount+0x228/0x810 [ 228.292624][ T6308] path_mount+0x5b4/0x1000 [ 228.293377][ T6308] __arm64_sys_mount+0x514/0x5e4 [ 228.294170][ T6308] invoke_syscall+0x98/0x2b8 [ 228.294917][ T6308] el0_svc_common+0x138/0x258 [ 228.295668][ T6308] do_el0_svc+0x58/0x14c [ 228.296329][ T6308] el0_svc+0x78/0x1e0 [ 228.296979][ T6308] el0t_64_sync_handler+0xcc/0xe4 [ 228.297811][ T6308] el0t_64_sync+0x1a0/0x1a4 [ 228.300145][ T6308] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.302135][ T6308] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.446564][ T6310] loop1: detected capacity change from 0 to 32768 [ 228.449667][ T6310] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.450930][ T6310] CPU: 1 PID: 6310 Comm: syz.1.658 Not tainted syzkaller #0 [ 228.452095][ T6310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 228.453772][ T6310] Call trace: [ 228.454289][ T6310] dump_backtrace+0x0/0x43c [ 228.455017][ T6310] show_stack+0x2c/0x3c [ 228.455685][ T6310] __dump_stack+0x30/0x40 [ 228.456329][ T6310] dump_stack_lvl+0xf8/0x160 [ 228.457060][ T6310] dump_stack+0x1c/0x5c [ 228.457723][ T6310] sysfs_create_dir_ns+0x22c/0x24c [ 228.458531][ T6310] kobject_add_internal+0x590/0xc54 [ 228.459343][ T6310] kobject_init_and_add+0x118/0x17c [ 228.460176][ T6310] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.460912][ T6310] gfs2_fill_super+0xdac/0x19e0 [ 228.461716][ T6310] get_tree_bdev+0x358/0x544 [ 228.462445][ T6310] gfs2_get_tree+0x54/0x1b4 [ 228.463167][ T6310] vfs_get_tree+0x90/0x274 [ 228.463853][ T6310] do_new_mount+0x228/0x810 [ 228.464568][ T6310] path_mount+0x5b4/0x1000 [ 228.465314][ T6310] __arm64_sys_mount+0x514/0x5e4 [ 228.466091][ T6310] invoke_syscall+0x98/0x2b8 [ 228.466781][ T6310] el0_svc_common+0x138/0x258 [ 228.467531][ T6310] do_el0_svc+0x58/0x14c [ 228.468248][ T6310] el0_svc+0x78/0x1e0 [ 228.468922][ T6310] el0t_64_sync_handler+0xcc/0xe4 [ 228.469756][ T6310] el0t_64_sync+0x1a0/0x1a4 [ 228.472584][ T6310] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.474429][ T6310] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.613659][ T6312] loop1: detected capacity change from 0 to 32768 [ 228.666324][ T6312] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.667458][ T6312] CPU: 0 PID: 6312 Comm: syz.1.659 Not tainted syzkaller #0 [ 228.668483][ T6312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 228.670005][ T6312] Call trace: [ 228.670485][ T6312] dump_backtrace+0x0/0x43c [ 228.671236][ T6312] show_stack+0x2c/0x3c [ 228.671916][ T6312] __dump_stack+0x30/0x40 [ 228.672523][ T6312] dump_stack_lvl+0xf8/0x160 [ 228.673249][ T6312] dump_stack+0x1c/0x5c [ 228.673895][ T6312] sysfs_create_dir_ns+0x22c/0x24c [ 228.674773][ T6312] kobject_add_internal+0x590/0xc54 [ 228.675614][ T6312] kobject_init_and_add+0x118/0x17c [ 228.676485][ T6312] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.677301][ T6312] gfs2_fill_super+0xdac/0x19e0 [ 228.678090][ T6312] get_tree_bdev+0x358/0x544 [ 228.678824][ T6312] gfs2_get_tree+0x54/0x1b4 [ 228.679531][ T6312] vfs_get_tree+0x90/0x274 [ 228.680160][ T6312] do_new_mount+0x228/0x810 [ 228.680876][ T6312] path_mount+0x5b4/0x1000 [ 228.681618][ T6312] __arm64_sys_mount+0x514/0x5e4 [ 228.682401][ T6312] invoke_syscall+0x98/0x2b8 [ 228.683157][ T6312] el0_svc_common+0x138/0x258 [ 228.683891][ T6312] do_el0_svc+0x58/0x14c [ 228.684569][ T6312] el0_svc+0x78/0x1e0 [ 228.685201][ T6312] el0t_64_sync_handler+0xcc/0xe4 [ 228.686018][ T6312] el0t_64_sync+0x1a0/0x1a4 [ 228.688034][ T6312] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.689991][ T6312] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.852744][ T6314] loop1: detected capacity change from 0 to 32768 [ 228.890450][ T6314] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.891598][ T6314] CPU: 1 PID: 6314 Comm: syz.1.660 Not tainted syzkaller #0 [ 228.892716][ T6314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 228.894197][ T6314] Call trace: [ 228.894683][ T6314] dump_backtrace+0x0/0x43c [ 228.895442][ T6314] show_stack+0x2c/0x3c [ 228.896183][ T6314] __dump_stack+0x30/0x40 [ 228.896921][ T6314] dump_stack_lvl+0xf8/0x160 [ 228.897681][ T6314] dump_stack+0x1c/0x5c [ 228.898352][ T6314] sysfs_create_dir_ns+0x22c/0x24c [ 228.899245][ T6314] kobject_add_internal+0x590/0xc54 [ 228.900046][ T6314] kobject_init_and_add+0x118/0x17c [ 228.900939][ T6314] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.901768][ T6314] gfs2_fill_super+0xdac/0x19e0 [ 228.902605][ T6314] get_tree_bdev+0x358/0x544 [ 228.903349][ T6314] gfs2_get_tree+0x54/0x1b4 [ 228.904074][ T6314] vfs_get_tree+0x90/0x274 [ 228.904744][ T6314] do_new_mount+0x228/0x810 [ 228.905473][ T6314] path_mount+0x5b4/0x1000 [ 228.906183][ T6314] __arm64_sys_mount+0x514/0x5e4 [ 228.906942][ T6314] invoke_syscall+0x98/0x2b8 [ 228.907603][ T6314] el0_svc_common+0x138/0x258 [ 228.908375][ T6314] do_el0_svc+0x58/0x14c [ 228.909114][ T6314] el0_svc+0x78/0x1e0 [ 228.909736][ T6314] el0t_64_sync_handler+0xcc/0xe4 [ 228.910551][ T6314] el0t_64_sync+0x1a0/0x1a4 [ 228.912756][ T6314] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.914720][ T6314] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.058017][ T6316] loop1: detected capacity change from 0 to 32768 [ 229.066373][ T6316] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.067540][ T6316] CPU: 0 PID: 6316 Comm: syz.1.661 Not tainted syzkaller #0 [ 229.068701][ T6316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.070306][ T6316] Call trace: [ 229.070815][ T6316] dump_backtrace+0x0/0x43c [ 229.071507][ T6316] show_stack+0x2c/0x3c [ 229.072165][ T6316] __dump_stack+0x30/0x40 [ 229.072811][ T6316] dump_stack_lvl+0xf8/0x160 [ 229.073541][ T6316] dump_stack+0x1c/0x5c [ 229.074184][ T6316] sysfs_create_dir_ns+0x22c/0x24c [ 229.074935][ T6316] kobject_add_internal+0x590/0xc54 [ 229.075824][ T6316] kobject_init_and_add+0x118/0x17c [ 229.076609][ T6316] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.077364][ T6316] gfs2_fill_super+0xdac/0x19e0 [ 229.078118][ T6316] get_tree_bdev+0x358/0x544 [ 229.078801][ T6316] gfs2_get_tree+0x54/0x1b4 [ 229.079452][ T6316] vfs_get_tree+0x90/0x274 [ 229.080158][ T6316] do_new_mount+0x228/0x810 [ 229.080898][ T6316] path_mount+0x5b4/0x1000 [ 229.081565][ T6316] __arm64_sys_mount+0x514/0x5e4 [ 229.082300][ T6316] invoke_syscall+0x98/0x2b8 [ 229.082974][ T6316] el0_svc_common+0x138/0x258 [ 229.083601][ T6316] do_el0_svc+0x58/0x14c [ 229.084274][ T6316] el0_svc+0x78/0x1e0 [ 229.084856][ T6316] el0t_64_sync_handler+0xcc/0xe4 [ 229.085667][ T6316] el0t_64_sync+0x1a0/0x1a4 [ 229.086639][ T6316] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.088551][ T6316] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.228841][ T6318] loop1: detected capacity change from 0 to 32768 [ 229.321818][ T6318] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.323025][ T6318] CPU: 0 PID: 6318 Comm: syz.1.662 Not tainted syzkaller #0 [ 229.324168][ T6318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.325755][ T6318] Call trace: [ 229.326273][ T6318] dump_backtrace+0x0/0x43c [ 229.326977][ T6318] show_stack+0x2c/0x3c [ 229.327658][ T6318] __dump_stack+0x30/0x40 [ 229.328340][ T6318] dump_stack_lvl+0xf8/0x160 [ 229.329018][ T6318] dump_stack+0x1c/0x5c [ 229.329726][ T6318] sysfs_create_dir_ns+0x22c/0x24c [ 229.330528][ T6318] kobject_add_internal+0x590/0xc54 [ 229.331277][ T6318] kobject_init_and_add+0x118/0x17c [ 229.332054][ T6318] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.332770][ T6318] gfs2_fill_super+0xdac/0x19e0 [ 229.333535][ T6318] get_tree_bdev+0x358/0x544 [ 229.334209][ T6318] gfs2_get_tree+0x54/0x1b4 [ 229.334857][ T6318] vfs_get_tree+0x90/0x274 [ 229.335524][ T6318] do_new_mount+0x228/0x810 [ 229.336194][ T6318] path_mount+0x5b4/0x1000 [ 229.336925][ T6318] __arm64_sys_mount+0x514/0x5e4 [ 229.337698][ T6318] invoke_syscall+0x98/0x2b8 [ 229.338461][ T6318] el0_svc_common+0x138/0x258 [ 229.339226][ T6318] do_el0_svc+0x58/0x14c [ 229.339949][ T6318] el0_svc+0x78/0x1e0 [ 229.340627][ T6318] el0t_64_sync_handler+0xcc/0xe4 [ 229.341437][ T6318] el0t_64_sync+0x1a0/0x1a4 [ 229.342985][ T6318] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.345143][ T6318] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.480715][ T6320] loop1: detected capacity change from 0 to 32768 [ 229.489518][ T6320] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.490759][ T6320] CPU: 1 PID: 6320 Comm: syz.1.663 Not tainted syzkaller #0 [ 229.491933][ T6320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.493477][ T6320] Call trace: [ 229.493946][ T6320] dump_backtrace+0x0/0x43c [ 229.494685][ T6320] show_stack+0x2c/0x3c [ 229.495370][ T6320] __dump_stack+0x30/0x40 [ 229.496031][ T6320] dump_stack_lvl+0xf8/0x160 [ 229.496781][ T6320] dump_stack+0x1c/0x5c [ 229.497435][ T6320] sysfs_create_dir_ns+0x22c/0x24c [ 229.498273][ T6320] kobject_add_internal+0x590/0xc54 [ 229.499119][ T6320] kobject_init_and_add+0x118/0x17c [ 229.499941][ T6320] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.500680][ T6320] gfs2_fill_super+0xdac/0x19e0 [ 229.501486][ T6320] get_tree_bdev+0x358/0x544 [ 229.502143][ T6320] gfs2_get_tree+0x54/0x1b4 [ 229.502905][ T6320] vfs_get_tree+0x90/0x274 [ 229.503643][ T6320] do_new_mount+0x228/0x810 [ 229.504393][ T6320] path_mount+0x5b4/0x1000 [ 229.505070][ T6320] __arm64_sys_mount+0x514/0x5e4 [ 229.505867][ T6320] invoke_syscall+0x98/0x2b8 [ 229.506593][ T6320] el0_svc_common+0x138/0x258 [ 229.507323][ T6320] do_el0_svc+0x58/0x14c [ 229.507993][ T6320] el0_svc+0x78/0x1e0 [ 229.508638][ T6320] el0t_64_sync_handler+0xcc/0xe4 [ 229.509424][ T6320] el0t_64_sync+0x1a0/0x1a4 [ 229.511665][ T6320] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.513569][ T6320] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.643360][ T6322] loop1: detected capacity change from 0 to 32768 [ 229.687258][ T6322] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.688730][ T6322] CPU: 1 PID: 6322 Comm: syz.1.664 Not tainted syzkaller #0 [ 229.689867][ T6322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.691491][ T6322] Call trace: [ 229.692003][ T6322] dump_backtrace+0x0/0x43c [ 229.692752][ T6322] show_stack+0x2c/0x3c [ 229.693406][ T6322] __dump_stack+0x30/0x40 [ 229.694076][ T6322] dump_stack_lvl+0xf8/0x160 [ 229.694841][ T6322] dump_stack+0x1c/0x5c [ 229.695562][ T6322] sysfs_create_dir_ns+0x22c/0x24c [ 229.696386][ T6322] kobject_add_internal+0x590/0xc54 [ 229.697158][ T6322] kobject_init_and_add+0x118/0x17c [ 229.697936][ T6322] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.698620][ T6322] gfs2_fill_super+0xdac/0x19e0 [ 229.699326][ T6322] get_tree_bdev+0x358/0x544 [ 229.700048][ T6322] gfs2_get_tree+0x54/0x1b4 [ 229.700749][ T6322] vfs_get_tree+0x90/0x274 [ 229.701448][ T6322] do_new_mount+0x228/0x810 [ 229.702112][ T6322] path_mount+0x5b4/0x1000 [ 229.702706][ T6322] __arm64_sys_mount+0x514/0x5e4 [ 229.703450][ T6322] invoke_syscall+0x98/0x2b8 [ 229.704121][ T6322] el0_svc_common+0x138/0x258 [ 229.704823][ T6322] do_el0_svc+0x58/0x14c [ 229.705514][ T6322] el0_svc+0x78/0x1e0 [ 229.706183][ T6322] el0t_64_sync_handler+0xcc/0xe4 [ 229.706990][ T6322] el0t_64_sync+0x1a0/0x1a4 [ 229.709324][ T6322] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.711227][ T6322] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.844947][ T6324] loop1: detected capacity change from 0 to 32768 [ 229.896263][ T6324] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.897449][ T6324] CPU: 0 PID: 6324 Comm: syz.1.665 Not tainted syzkaller #0 [ 229.898543][ T6324] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 229.900008][ T6324] Call trace: [ 229.900460][ T6324] dump_backtrace+0x0/0x43c [ 229.901051][ T6324] show_stack+0x2c/0x3c [ 229.901684][ T6324] __dump_stack+0x30/0x40 [ 229.902309][ T6324] dump_stack_lvl+0xf8/0x160 [ 229.903054][ T6324] dump_stack+0x1c/0x5c [ 229.903698][ T6324] sysfs_create_dir_ns+0x22c/0x24c [ 229.904464][ T6324] kobject_add_internal+0x590/0xc54 [ 229.905211][ T6324] kobject_init_and_add+0x118/0x17c [ 229.906084][ T6324] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.906806][ T6324] gfs2_fill_super+0xdac/0x19e0 [ 229.907503][ T6324] get_tree_bdev+0x358/0x544 [ 229.908214][ T6324] gfs2_get_tree+0x54/0x1b4 [ 229.908880][ T6324] vfs_get_tree+0x90/0x274 [ 229.909506][ T6324] do_new_mount+0x228/0x810 [ 229.910145][ T6324] path_mount+0x5b4/0x1000 [ 229.910855][ T6324] __arm64_sys_mount+0x514/0x5e4 [ 229.911587][ T6324] invoke_syscall+0x98/0x2b8 [ 229.912296][ T6324] el0_svc_common+0x138/0x258 [ 229.913057][ T6324] do_el0_svc+0x58/0x14c [ 229.913710][ T6324] el0_svc+0x78/0x1e0 [ 229.914365][ T6324] el0t_64_sync_handler+0xcc/0xe4 [ 229.915142][ T6324] el0t_64_sync+0x1a0/0x1a4 [ 229.916286][ T6324] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.919500][ T6324] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.092700][ T6326] loop1: detected capacity change from 0 to 32768 [ 230.130503][ T6326] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.131742][ T6326] CPU: 1 PID: 6326 Comm: syz.1.666 Not tainted syzkaller #0 [ 230.132956][ T6326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 230.134393][ T6326] Call trace: [ 230.134894][ T6326] dump_backtrace+0x0/0x43c [ 230.135699][ T6326] show_stack+0x2c/0x3c [ 230.136428][ T6326] __dump_stack+0x30/0x40 [ 230.137163][ T6326] dump_stack_lvl+0xf8/0x160 [ 230.137962][ T6326] dump_stack+0x1c/0x5c [ 230.138614][ T6326] sysfs_create_dir_ns+0x22c/0x24c [ 230.139445][ T6326] kobject_add_internal+0x590/0xc54 [ 230.140302][ T6326] kobject_init_and_add+0x118/0x17c [ 230.141172][ T6326] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.141943][ T6326] gfs2_fill_super+0xdac/0x19e0 [ 230.142755][ T6326] get_tree_bdev+0x358/0x544 [ 230.143490][ T6326] gfs2_get_tree+0x54/0x1b4 [ 230.144167][ T6326] vfs_get_tree+0x90/0x274 [ 230.144886][ T6326] do_new_mount+0x228/0x810 [ 230.145646][ T6326] path_mount+0x5b4/0x1000 [ 230.146357][ T6326] __arm64_sys_mount+0x514/0x5e4 [ 230.147211][ T6326] invoke_syscall+0x98/0x2b8 [ 230.147991][ T6326] el0_svc_common+0x138/0x258 [ 230.148779][ T6326] do_el0_svc+0x58/0x14c [ 230.149480][ T6326] el0_svc+0x78/0x1e0 [ 230.150073][ T6326] el0t_64_sync_handler+0xcc/0xe4 [ 230.150892][ T6326] el0t_64_sync+0x1a0/0x1a4 [ 230.153083][ T6326] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.155093][ T6326] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.285599][ T6328] loop1: detected capacity change from 0 to 32768 [ 230.326386][ T6328] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.327501][ T6328] CPU: 0 PID: 6328 Comm: syz.1.667 Not tainted syzkaller #0 [ 230.328630][ T6328] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 230.330372][ T6328] Call trace: [ 230.330887][ T6328] dump_backtrace+0x0/0x43c [ 230.331619][ T6328] show_stack+0x2c/0x3c [ 230.332234][ T6328] __dump_stack+0x30/0x40 [ 230.332936][ T6328] dump_stack_lvl+0xf8/0x160 [ 230.333673][ T6328] dump_stack+0x1c/0x5c [ 230.334369][ T6328] sysfs_create_dir_ns+0x22c/0x24c [ 230.335195][ T6328] kobject_add_internal+0x590/0xc54 [ 230.335983][ T6328] kobject_init_and_add+0x118/0x17c [ 230.336804][ T6328] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.337553][ T6328] gfs2_fill_super+0xdac/0x19e0 [ 230.338287][ T6328] get_tree_bdev+0x358/0x544 [ 230.339065][ T6328] gfs2_get_tree+0x54/0x1b4 [ 230.339771][ T6328] vfs_get_tree+0x90/0x274 [ 230.340478][ T6328] do_new_mount+0x228/0x810 [ 230.341223][ T6328] path_mount+0x5b4/0x1000 [ 230.341875][ T6328] __arm64_sys_mount+0x514/0x5e4 [ 230.342705][ T6328] invoke_syscall+0x98/0x2b8 [ 230.343460][ T6328] el0_svc_common+0x138/0x258 [ 230.344263][ T6328] do_el0_svc+0x58/0x14c [ 230.345024][ T6328] el0_svc+0x78/0x1e0 [ 230.345698][ T6328] el0t_64_sync_handler+0xcc/0xe4 [ 230.346448][ T6328] el0t_64_sync+0x1a0/0x1a4 [ 230.348095][ T6328] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.350022][ T6328] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.543626][ T6330] loop1: detected capacity change from 0 to 32768 [ 230.581576][ T6330] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.582660][ T6330] CPU: 1 PID: 6330 Comm: syz.1.668 Not tainted syzkaller #0 [ 230.583783][ T6330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 230.585351][ T6330] Call trace: [ 230.585895][ T6330] dump_backtrace+0x0/0x43c [ 230.586672][ T6330] show_stack+0x2c/0x3c [ 230.587347][ T6330] __dump_stack+0x30/0x40 [ 230.588027][ T6330] dump_stack_lvl+0xf8/0x160 [ 230.588686][ T6330] dump_stack+0x1c/0x5c [ 230.589327][ T6330] sysfs_create_dir_ns+0x22c/0x24c [ 230.590162][ T6330] kobject_add_internal+0x590/0xc54 [ 230.590947][ T6330] kobject_init_and_add+0x118/0x17c [ 230.591731][ T6330] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.592500][ T6330] gfs2_fill_super+0xdac/0x19e0 [ 230.593245][ T6330] get_tree_bdev+0x358/0x544 [ 230.594043][ T6330] gfs2_get_tree+0x54/0x1b4 [ 230.594737][ T6330] vfs_get_tree+0x90/0x274 [ 230.595440][ T6330] do_new_mount+0x228/0x810 [ 230.596173][ T6330] path_mount+0x5b4/0x1000 [ 230.596802][ T6330] __arm64_sys_mount+0x514/0x5e4 [ 230.597572][ T6330] invoke_syscall+0x98/0x2b8 [ 230.598179][ T6330] el0_svc_common+0x138/0x258 [ 230.598823][ T6330] do_el0_svc+0x58/0x14c [ 230.599493][ T6330] el0_svc+0x78/0x1e0 [ 230.600089][ T6330] el0t_64_sync_handler+0xcc/0xe4 [ 230.600825][ T6330] el0t_64_sync+0x1a0/0x1a4 [ 230.602948][ T6330] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.605107][ T6330] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:50 executed programs: 655 [ 230.741999][ T6332] loop1: detected capacity change from 0 to 32768 [ 230.751038][ T6332] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.752154][ T6332] CPU: 0 PID: 6332 Comm: syz.1.669 Not tainted syzkaller #0 [ 230.753382][ T6332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 230.754909][ T6332] Call trace: [ 230.755414][ T6332] dump_backtrace+0x0/0x43c [ 230.756122][ T6332] show_stack+0x2c/0x3c [ 230.756827][ T6332] __dump_stack+0x30/0x40 [ 230.757513][ T6332] dump_stack_lvl+0xf8/0x160 [ 230.758242][ T6332] dump_stack+0x1c/0x5c [ 230.758839][ T6332] sysfs_create_dir_ns+0x22c/0x24c [ 230.759605][ T6332] kobject_add_internal+0x590/0xc54 [ 230.760377][ T6332] kobject_init_and_add+0x118/0x17c [ 230.761148][ T6332] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.761876][ T6332] gfs2_fill_super+0xdac/0x19e0 [ 230.762627][ T6332] get_tree_bdev+0x358/0x544 [ 230.763328][ T6332] gfs2_get_tree+0x54/0x1b4 [ 230.763947][ T6332] vfs_get_tree+0x90/0x274 [ 230.764727][ T6332] do_new_mount+0x228/0x810 [ 230.765498][ T6332] path_mount+0x5b4/0x1000 [ 230.766224][ T6332] __arm64_sys_mount+0x514/0x5e4 [ 230.766988][ T6332] invoke_syscall+0x98/0x2b8 [ 230.767703][ T6332] el0_svc_common+0x138/0x258 [ 230.768511][ T6332] do_el0_svc+0x58/0x14c [ 230.769177][ T6332] el0_svc+0x78/0x1e0 [ 230.769791][ T6332] el0t_64_sync_handler+0xcc/0xe4 [ 230.770547][ T6332] el0t_64_sync+0x1a0/0x1a4 [ 230.772787][ T6332] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.774671][ T6332] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.907331][ T6334] loop1: detected capacity change from 0 to 32768 [ 231.000251][ T6334] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.001392][ T6334] CPU: 0 PID: 6334 Comm: syz.1.670 Not tainted syzkaller #0 [ 231.002386][ T6334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.003711][ T6334] Call trace: [ 231.004179][ T6334] dump_backtrace+0x0/0x43c [ 231.004803][ T6334] show_stack+0x2c/0x3c [ 231.005396][ T6334] __dump_stack+0x30/0x40 [ 231.006055][ T6334] dump_stack_lvl+0xf8/0x160 [ 231.006718][ T6334] dump_stack+0x1c/0x5c [ 231.007323][ T6334] sysfs_create_dir_ns+0x22c/0x24c [ 231.008153][ T6334] kobject_add_internal+0x590/0xc54 [ 231.008926][ T6334] kobject_init_and_add+0x118/0x17c [ 231.009710][ T6334] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.010420][ T6334] gfs2_fill_super+0xdac/0x19e0 [ 231.011150][ T6334] get_tree_bdev+0x358/0x544 [ 231.011845][ T6334] gfs2_get_tree+0x54/0x1b4 [ 231.012485][ T6334] vfs_get_tree+0x90/0x274 [ 231.013104][ T6334] do_new_mount+0x228/0x810 [ 231.013756][ T6334] path_mount+0x5b4/0x1000 [ 231.014413][ T6334] __arm64_sys_mount+0x514/0x5e4 [ 231.015172][ T6334] invoke_syscall+0x98/0x2b8 [ 231.015872][ T6334] el0_svc_common+0x138/0x258 [ 231.016659][ T6334] do_el0_svc+0x58/0x14c [ 231.017357][ T6334] el0_svc+0x78/0x1e0 [ 231.018010][ T6334] el0t_64_sync_handler+0xcc/0xe4 [ 231.018777][ T6334] el0t_64_sync+0x1a0/0x1a4 [ 231.020222][ T6334] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.022284][ T6334] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.179391][ T6336] loop1: detected capacity change from 0 to 32768 [ 231.260617][ T6336] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.261819][ T6336] CPU: 1 PID: 6336 Comm: syz.1.671 Not tainted syzkaller #0 [ 231.262961][ T6336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.264449][ T6336] Call trace: [ 231.264968][ T6336] dump_backtrace+0x0/0x43c [ 231.265624][ T6336] show_stack+0x2c/0x3c [ 231.266258][ T6336] __dump_stack+0x30/0x40 [ 231.266994][ T6336] dump_stack_lvl+0xf8/0x160 [ 231.267757][ T6336] dump_stack+0x1c/0x5c [ 231.268356][ T6336] sysfs_create_dir_ns+0x22c/0x24c [ 231.269159][ T6336] kobject_add_internal+0x590/0xc54 [ 231.269986][ T6336] kobject_init_and_add+0x118/0x17c [ 231.270800][ T6336] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.271513][ T6336] gfs2_fill_super+0xdac/0x19e0 [ 231.272218][ T6336] get_tree_bdev+0x358/0x544 [ 231.272951][ T6336] gfs2_get_tree+0x54/0x1b4 [ 231.273595][ T6336] vfs_get_tree+0x90/0x274 [ 231.274279][ T6336] do_new_mount+0x228/0x810 [ 231.275013][ T6336] path_mount+0x5b4/0x1000 [ 231.275736][ T6336] __arm64_sys_mount+0x514/0x5e4 [ 231.276542][ T6336] invoke_syscall+0x98/0x2b8 [ 231.277388][ T6336] el0_svc_common+0x138/0x258 [ 231.278113][ T6336] do_el0_svc+0x58/0x14c [ 231.278815][ T6336] el0_svc+0x78/0x1e0 [ 231.279495][ T6336] el0t_64_sync_handler+0xcc/0xe4 [ 231.280325][ T6336] el0t_64_sync+0x1a0/0x1a4 [ 231.281259][ T6336] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.283776][ T6336] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.421838][ T6338] loop1: detected capacity change from 0 to 32768 [ 231.429898][ T6338] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.431053][ T6338] CPU: 0 PID: 6338 Comm: syz.1.672 Not tainted syzkaller #0 [ 231.432079][ T6338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.433397][ T6338] Call trace: [ 231.433812][ T6338] dump_backtrace+0x0/0x43c [ 231.434511][ T6338] show_stack+0x2c/0x3c [ 231.435181][ T6338] __dump_stack+0x30/0x40 [ 231.435860][ T6338] dump_stack_lvl+0xf8/0x160 [ 231.436551][ T6338] dump_stack+0x1c/0x5c [ 231.437123][ T6338] sysfs_create_dir_ns+0x22c/0x24c [ 231.437832][ T6338] kobject_add_internal+0x590/0xc54 [ 231.438562][ T6338] kobject_init_and_add+0x118/0x17c [ 231.439292][ T6338] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.439986][ T6338] gfs2_fill_super+0xdac/0x19e0 [ 231.440718][ T6338] get_tree_bdev+0x358/0x544 [ 231.441402][ T6338] gfs2_get_tree+0x54/0x1b4 [ 231.442079][ T6338] vfs_get_tree+0x90/0x274 [ 231.442760][ T6338] do_new_mount+0x228/0x810 [ 231.443483][ T6338] path_mount+0x5b4/0x1000 [ 231.444156][ T6338] __arm64_sys_mount+0x514/0x5e4 [ 231.444936][ T6338] invoke_syscall+0x98/0x2b8 [ 231.445652][ T6338] el0_svc_common+0x138/0x258 [ 231.446393][ T6338] do_el0_svc+0x58/0x14c [ 231.447132][ T6338] el0_svc+0x78/0x1e0 [ 231.447746][ T6338] el0t_64_sync_handler+0xcc/0xe4 [ 231.448604][ T6338] el0t_64_sync+0x1a0/0x1a4 [ 231.449730][ T6338] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.451585][ T6338] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.592490][ T6340] loop1: detected capacity change from 0 to 32768 [ 231.601345][ T6340] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.602580][ T6340] CPU: 0 PID: 6340 Comm: syz.1.673 Not tainted syzkaller #0 [ 231.603601][ T6340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.605198][ T6340] Call trace: [ 231.605695][ T6340] dump_backtrace+0x0/0x43c [ 231.606398][ T6340] show_stack+0x2c/0x3c [ 231.606993][ T6340] __dump_stack+0x30/0x40 [ 231.607605][ T6340] dump_stack_lvl+0xf8/0x160 [ 231.608306][ T6340] dump_stack+0x1c/0x5c [ 231.608899][ T6340] sysfs_create_dir_ns+0x22c/0x24c [ 231.609671][ T6340] kobject_add_internal+0x590/0xc54 [ 231.610494][ T6340] kobject_init_and_add+0x118/0x17c [ 231.611339][ T6340] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.612140][ T6340] gfs2_fill_super+0xdac/0x19e0 [ 231.612918][ T6340] get_tree_bdev+0x358/0x544 [ 231.613656][ T6340] gfs2_get_tree+0x54/0x1b4 [ 231.614349][ T6340] vfs_get_tree+0x90/0x274 [ 231.615073][ T6340] do_new_mount+0x228/0x810 [ 231.615809][ T6340] path_mount+0x5b4/0x1000 [ 231.616517][ T6340] __arm64_sys_mount+0x514/0x5e4 [ 231.617263][ T6340] invoke_syscall+0x98/0x2b8 [ 231.617995][ T6340] el0_svc_common+0x138/0x258 [ 231.618712][ T6340] do_el0_svc+0x58/0x14c [ 231.619347][ T6340] el0_svc+0x78/0x1e0 [ 231.619948][ T6340] el0t_64_sync_handler+0xcc/0xe4 [ 231.620690][ T6340] el0t_64_sync+0x1a0/0x1a4 [ 231.623719][ T6340] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.625711][ T6340] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.762223][ T6342] loop1: detected capacity change from 0 to 32768 [ 231.769980][ T6342] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.771164][ T6342] CPU: 1 PID: 6342 Comm: syz.1.674 Not tainted syzkaller #0 [ 231.772369][ T6342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.773994][ T6342] Call trace: [ 231.774510][ T6342] dump_backtrace+0x0/0x43c [ 231.775228][ T6342] show_stack+0x2c/0x3c [ 231.775920][ T6342] __dump_stack+0x30/0x40 [ 231.776636][ T6342] dump_stack_lvl+0xf8/0x160 [ 231.777387][ T6342] dump_stack+0x1c/0x5c [ 231.778048][ T6342] sysfs_create_dir_ns+0x22c/0x24c [ 231.778842][ T6342] kobject_add_internal+0x590/0xc54 [ 231.779668][ T6342] kobject_init_and_add+0x118/0x17c [ 231.780589][ T6342] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.781366][ T6342] gfs2_fill_super+0xdac/0x19e0 [ 231.782181][ T6342] get_tree_bdev+0x358/0x544 [ 231.782904][ T6342] gfs2_get_tree+0x54/0x1b4 [ 231.783633][ T6342] vfs_get_tree+0x90/0x274 [ 231.784363][ T6342] do_new_mount+0x228/0x810 [ 231.785107][ T6342] path_mount+0x5b4/0x1000 [ 231.785792][ T6342] __arm64_sys_mount+0x514/0x5e4 [ 231.786570][ T6342] invoke_syscall+0x98/0x2b8 [ 231.787306][ T6342] el0_svc_common+0x138/0x258 [ 231.788030][ T6342] do_el0_svc+0x58/0x14c [ 231.788683][ T6342] el0_svc+0x78/0x1e0 [ 231.789281][ T6342] el0t_64_sync_handler+0xcc/0xe4 [ 231.790069][ T6342] el0t_64_sync+0x1a0/0x1a4 [ 231.791008][ T6342] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.793009][ T6342] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.925770][ T6344] loop1: detected capacity change from 0 to 32768 [ 231.976714][ T6344] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.977901][ T6344] CPU: 0 PID: 6344 Comm: syz.1.675 Not tainted syzkaller #0 [ 231.978986][ T6344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 231.980582][ T6344] Call trace: [ 231.981034][ T6344] dump_backtrace+0x0/0x43c [ 231.981661][ T6344] show_stack+0x2c/0x3c [ 231.982303][ T6344] __dump_stack+0x30/0x40 [ 231.983008][ T6344] dump_stack_lvl+0xf8/0x160 [ 231.983719][ T6344] dump_stack+0x1c/0x5c [ 231.984309][ T6344] sysfs_create_dir_ns+0x22c/0x24c [ 231.985114][ T6344] kobject_add_internal+0x590/0xc54 [ 231.985891][ T6344] kobject_init_and_add+0x118/0x17c [ 231.986647][ T6344] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.987364][ T6344] gfs2_fill_super+0xdac/0x19e0 [ 231.988068][ T6344] get_tree_bdev+0x358/0x544 [ 231.988759][ T6344] gfs2_get_tree+0x54/0x1b4 [ 231.989493][ T6344] vfs_get_tree+0x90/0x274 [ 231.990181][ T6344] do_new_mount+0x228/0x810 [ 231.990887][ T6344] path_mount+0x5b4/0x1000 [ 231.991543][ T6344] __arm64_sys_mount+0x514/0x5e4 [ 231.992288][ T6344] invoke_syscall+0x98/0x2b8 [ 231.992962][ T6344] el0_svc_common+0x138/0x258 [ 231.993774][ T6344] do_el0_svc+0x58/0x14c [ 231.994429][ T6344] el0_svc+0x78/0x1e0 [ 231.995038][ T6344] el0t_64_sync_handler+0xcc/0xe4 [ 231.995791][ T6344] el0t_64_sync+0x1a0/0x1a4 [ 232.001060][ T6344] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.003219][ T6344] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.193675][ T6346] loop1: detected capacity change from 0 to 32768 [ 232.236812][ T6346] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.237962][ T6346] CPU: 1 PID: 6346 Comm: syz.1.676 Not tainted syzkaller #0 [ 232.239102][ T6346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.240703][ T6346] Call trace: [ 232.241228][ T6346] dump_backtrace+0x0/0x43c [ 232.241917][ T6346] show_stack+0x2c/0x3c [ 232.242582][ T6346] __dump_stack+0x30/0x40 [ 232.243217][ T6346] dump_stack_lvl+0xf8/0x160 [ 232.243921][ T6346] dump_stack+0x1c/0x5c [ 232.244609][ T6346] sysfs_create_dir_ns+0x22c/0x24c [ 232.245467][ T6346] kobject_add_internal+0x590/0xc54 [ 232.246283][ T6346] kobject_init_and_add+0x118/0x17c [ 232.247096][ T6346] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.247857][ T6346] gfs2_fill_super+0xdac/0x19e0 [ 232.248710][ T6346] get_tree_bdev+0x358/0x544 [ 232.249451][ T6346] gfs2_get_tree+0x54/0x1b4 [ 232.250155][ T6346] vfs_get_tree+0x90/0x274 [ 232.250860][ T6346] do_new_mount+0x228/0x810 [ 232.251589][ T6346] path_mount+0x5b4/0x1000 [ 232.252245][ T6346] __arm64_sys_mount+0x514/0x5e4 [ 232.252936][ T6346] invoke_syscall+0x98/0x2b8 [ 232.253599][ T6346] el0_svc_common+0x138/0x258 [ 232.254352][ T6346] do_el0_svc+0x58/0x14c [ 232.255033][ T6346] el0_svc+0x78/0x1e0 [ 232.255654][ T6346] el0t_64_sync_handler+0xcc/0xe4 [ 232.256398][ T6346] el0t_64_sync+0x1a0/0x1a4 [ 232.258614][ T6346] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.260436][ T6346] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.394672][ T6348] loop1: detected capacity change from 0 to 32768 [ 232.491076][ T6348] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.492436][ T6348] CPU: 1 PID: 6348 Comm: syz.1.677 Not tainted syzkaller #0 [ 232.493489][ T6348] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.495151][ T6348] Call trace: [ 232.495705][ T6348] dump_backtrace+0x0/0x43c [ 232.496479][ T6348] show_stack+0x2c/0x3c [ 232.497221][ T6348] __dump_stack+0x30/0x40 [ 232.497967][ T6348] dump_stack_lvl+0xf8/0x160 [ 232.498704][ T6348] dump_stack+0x1c/0x5c [ 232.499314][ T6348] sysfs_create_dir_ns+0x22c/0x24c [ 232.500053][ T6348] kobject_add_internal+0x590/0xc54 [ 232.500864][ T6348] kobject_init_and_add+0x118/0x17c [ 232.501715][ T6348] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.502377][ T6348] gfs2_fill_super+0xdac/0x19e0 [ 232.503127][ T6348] get_tree_bdev+0x358/0x544 [ 232.503845][ T6348] gfs2_get_tree+0x54/0x1b4 [ 232.504517][ T6348] vfs_get_tree+0x90/0x274 [ 232.505145][ T6348] do_new_mount+0x228/0x810 [ 232.505843][ T6348] path_mount+0x5b4/0x1000 [ 232.506529][ T6348] __arm64_sys_mount+0x514/0x5e4 [ 232.507298][ T6348] invoke_syscall+0x98/0x2b8 [ 232.508030][ T6348] el0_svc_common+0x138/0x258 [ 232.508753][ T6348] do_el0_svc+0x58/0x14c [ 232.509383][ T6348] el0_svc+0x78/0x1e0 [ 232.509983][ T6348] el0t_64_sync_handler+0xcc/0xe4 [ 232.510747][ T6348] el0t_64_sync+0x1a0/0x1a4 [ 232.512239][ T6348] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.514351][ T6348] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.648771][ T6350] loop1: detected capacity change from 0 to 32768 [ 232.719644][ T6350] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.720920][ T6350] CPU: 0 PID: 6350 Comm: syz.1.678 Not tainted syzkaller #0 [ 232.722049][ T6350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.723607][ T6350] Call trace: [ 232.724163][ T6350] dump_backtrace+0x0/0x43c [ 232.724872][ T6350] show_stack+0x2c/0x3c [ 232.725580][ T6350] __dump_stack+0x30/0x40 [ 232.726259][ T6350] dump_stack_lvl+0xf8/0x160 [ 232.726965][ T6350] dump_stack+0x1c/0x5c [ 232.727626][ T6350] sysfs_create_dir_ns+0x22c/0x24c [ 232.728385][ T6350] kobject_add_internal+0x590/0xc54 [ 232.729153][ T6350] kobject_init_and_add+0x118/0x17c [ 232.729926][ T6350] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.730615][ T6350] gfs2_fill_super+0xdac/0x19e0 [ 232.731450][ T6350] get_tree_bdev+0x358/0x544 [ 232.732215][ T6350] gfs2_get_tree+0x54/0x1b4 [ 232.732907][ T6350] vfs_get_tree+0x90/0x274 [ 232.733566][ T6350] do_new_mount+0x228/0x810 [ 232.734342][ T6350] path_mount+0x5b4/0x1000 [ 232.735045][ T6350] __arm64_sys_mount+0x514/0x5e4 [ 232.735890][ T6350] invoke_syscall+0x98/0x2b8 [ 232.736603][ T6350] el0_svc_common+0x138/0x258 [ 232.737367][ T6350] do_el0_svc+0x58/0x14c [ 232.738059][ T6350] el0_svc+0x78/0x1e0 [ 232.738710][ T6350] el0t_64_sync_handler+0xcc/0xe4 [ 232.739496][ T6350] el0t_64_sync+0x1a0/0x1a4 [ 232.741777][ T6350] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.743792][ T6350] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.886855][ T6352] loop1: detected capacity change from 0 to 32768 [ 232.891425][ T6352] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.892586][ T6352] CPU: 0 PID: 6352 Comm: syz.1.679 Not tainted syzkaller #0 [ 232.893826][ T6352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 232.895509][ T6352] Call trace: [ 232.896071][ T6352] dump_backtrace+0x0/0x43c [ 232.896830][ T6352] show_stack+0x2c/0x3c [ 232.897495][ T6352] __dump_stack+0x30/0x40 [ 232.898201][ T6352] dump_stack_lvl+0xf8/0x160 [ 232.898849][ T6352] dump_stack+0x1c/0x5c [ 232.899503][ T6352] sysfs_create_dir_ns+0x22c/0x24c [ 232.900344][ T6352] kobject_add_internal+0x590/0xc54 [ 232.901124][ T6352] kobject_init_and_add+0x118/0x17c [ 232.901873][ T6352] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.902535][ T6352] gfs2_fill_super+0xdac/0x19e0 [ 232.903238][ T6352] get_tree_bdev+0x358/0x544 [ 232.903912][ T6352] gfs2_get_tree+0x54/0x1b4 [ 232.904597][ T6352] vfs_get_tree+0x90/0x274 [ 232.905263][ T6352] do_new_mount+0x228/0x810 [ 232.905969][ T6352] path_mount+0x5b4/0x1000 [ 232.906682][ T6352] __arm64_sys_mount+0x514/0x5e4 [ 232.907430][ T6352] invoke_syscall+0x98/0x2b8 [ 232.908124][ T6352] el0_svc_common+0x138/0x258 [ 232.908833][ T6352] do_el0_svc+0x58/0x14c [ 232.909500][ T6352] el0_svc+0x78/0x1e0 [ 232.910162][ T6352] el0t_64_sync_handler+0xcc/0xe4 [ 232.910920][ T6352] el0t_64_sync+0x1a0/0x1a4 [ 232.913783][ T6352] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.915819][ T6352] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.061775][ T6354] loop1: detected capacity change from 0 to 32768 [ 233.066594][ T6354] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.067726][ T6354] CPU: 0 PID: 6354 Comm: syz.1.680 Not tainted syzkaller #0 [ 233.068815][ T6354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.070402][ T6354] Call trace: [ 233.070908][ T6354] dump_backtrace+0x0/0x43c [ 233.071609][ T6354] show_stack+0x2c/0x3c [ 233.072224][ T6354] __dump_stack+0x30/0x40 [ 233.072937][ T6354] dump_stack_lvl+0xf8/0x160 [ 233.073652][ T6354] dump_stack+0x1c/0x5c [ 233.074260][ T6354] sysfs_create_dir_ns+0x22c/0x24c [ 233.075012][ T6354] kobject_add_internal+0x590/0xc54 [ 233.075856][ T6354] kobject_init_and_add+0x118/0x17c [ 233.076652][ T6354] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.077418][ T6354] gfs2_fill_super+0xdac/0x19e0 [ 233.078175][ T6354] get_tree_bdev+0x358/0x544 [ 233.078797][ T6354] gfs2_get_tree+0x54/0x1b4 [ 233.079546][ T6354] vfs_get_tree+0x90/0x274 [ 233.080263][ T6354] do_new_mount+0x228/0x810 [ 233.080978][ T6354] path_mount+0x5b4/0x1000 [ 233.081626][ T6354] __arm64_sys_mount+0x514/0x5e4 [ 233.082415][ T6354] invoke_syscall+0x98/0x2b8 [ 233.083146][ T6354] el0_svc_common+0x138/0x258 [ 233.083868][ T6354] do_el0_svc+0x58/0x14c [ 233.084499][ T6354] el0_svc+0x78/0x1e0 [ 233.085124][ T6354] el0t_64_sync_handler+0xcc/0xe4 [ 233.085954][ T6354] el0t_64_sync+0x1a0/0x1a4 [ 233.086818][ T6354] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.089156][ T6354] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.227203][ T6356] loop1: detected capacity change from 0 to 32768 [ 233.235199][ T6356] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.236326][ T6356] CPU: 1 PID: 6356 Comm: syz.1.681 Not tainted syzkaller #0 [ 233.237402][ T6356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.238794][ T6356] Call trace: [ 233.239275][ T6356] dump_backtrace+0x0/0x43c [ 233.239958][ T6356] show_stack+0x2c/0x3c [ 233.240572][ T6356] __dump_stack+0x30/0x40 [ 233.241304][ T6356] dump_stack_lvl+0xf8/0x160 [ 233.242033][ T6356] dump_stack+0x1c/0x5c [ 233.242659][ T6356] sysfs_create_dir_ns+0x22c/0x24c [ 233.243490][ T6356] kobject_add_internal+0x590/0xc54 [ 233.244312][ T6356] kobject_init_and_add+0x118/0x17c [ 233.245105][ T6356] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.245893][ T6356] gfs2_fill_super+0xdac/0x19e0 [ 233.246651][ T6356] get_tree_bdev+0x358/0x544 [ 233.247436][ T6356] gfs2_get_tree+0x54/0x1b4 [ 233.248180][ T6356] vfs_get_tree+0x90/0x274 [ 233.248907][ T6356] do_new_mount+0x228/0x810 [ 233.249601][ T6356] path_mount+0x5b4/0x1000 [ 233.250312][ T6356] __arm64_sys_mount+0x514/0x5e4 [ 233.251134][ T6356] invoke_syscall+0x98/0x2b8 [ 233.251876][ T6356] el0_svc_common+0x138/0x258 [ 233.252622][ T6356] do_el0_svc+0x58/0x14c [ 233.253304][ T6356] el0_svc+0x78/0x1e0 [ 233.253957][ T6356] el0t_64_sync_handler+0xcc/0xe4 [ 233.254776][ T6356] el0t_64_sync+0x1a0/0x1a4 [ 233.256934][ T6356] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.258840][ T6356] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.395348][ T6358] loop1: detected capacity change from 0 to 32768 [ 233.404040][ T6358] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.405291][ T6358] CPU: 1 PID: 6358 Comm: syz.1.682 Not tainted syzkaller #0 [ 233.406314][ T6358] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.407729][ T6358] Call trace: [ 233.408246][ T6358] dump_backtrace+0x0/0x43c [ 233.408901][ T6358] show_stack+0x2c/0x3c [ 233.409470][ T6358] __dump_stack+0x30/0x40 [ 233.410135][ T6358] dump_stack_lvl+0xf8/0x160 [ 233.410773][ T6358] dump_stack+0x1c/0x5c [ 233.411492][ T6358] sysfs_create_dir_ns+0x22c/0x24c [ 233.412310][ T6358] kobject_add_internal+0x590/0xc54 [ 233.413176][ T6358] kobject_init_and_add+0x118/0x17c [ 233.414008][ T6358] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.414812][ T6358] gfs2_fill_super+0xdac/0x19e0 [ 233.415635][ T6358] get_tree_bdev+0x358/0x544 [ 233.416345][ T6358] gfs2_get_tree+0x54/0x1b4 [ 233.417097][ T6358] vfs_get_tree+0x90/0x274 [ 233.417780][ T6358] do_new_mount+0x228/0x810 [ 233.418448][ T6358] path_mount+0x5b4/0x1000 [ 233.419222][ T6358] __arm64_sys_mount+0x514/0x5e4 [ 233.419961][ T6358] invoke_syscall+0x98/0x2b8 [ 233.420680][ T6358] el0_svc_common+0x138/0x258 [ 233.421432][ T6358] do_el0_svc+0x58/0x14c [ 233.422154][ T6358] el0_svc+0x78/0x1e0 [ 233.422846][ T6358] el0t_64_sync_handler+0xcc/0xe4 [ 233.423649][ T6358] el0t_64_sync+0x1a0/0x1a4 [ 233.425976][ T6358] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.427853][ T6358] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.581362][ T6360] loop1: detected capacity change from 0 to 32768 [ 233.660211][ T6360] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.661388][ T6360] CPU: 0 PID: 6360 Comm: syz.1.683 Not tainted syzkaller #0 [ 233.662548][ T6360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.664128][ T6360] Call trace: [ 233.664584][ T6360] dump_backtrace+0x0/0x43c [ 233.665214][ T6360] show_stack+0x2c/0x3c [ 233.665821][ T6360] __dump_stack+0x30/0x40 [ 233.666533][ T6360] dump_stack_lvl+0xf8/0x160 [ 233.667234][ T6360] dump_stack+0x1c/0x5c [ 233.667848][ T6360] sysfs_create_dir_ns+0x22c/0x24c [ 233.668653][ T6360] kobject_add_internal+0x590/0xc54 [ 233.669417][ T6360] kobject_init_and_add+0x118/0x17c [ 233.670146][ T6360] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.670944][ T6360] gfs2_fill_super+0xdac/0x19e0 [ 233.671778][ T6360] get_tree_bdev+0x358/0x544 [ 233.672514][ T6360] gfs2_get_tree+0x54/0x1b4 [ 233.673222][ T6360] vfs_get_tree+0x90/0x274 [ 233.673936][ T6360] do_new_mount+0x228/0x810 [ 233.674686][ T6360] path_mount+0x5b4/0x1000 [ 233.675408][ T6360] __arm64_sys_mount+0x514/0x5e4 [ 233.676158][ T6360] invoke_syscall+0x98/0x2b8 [ 233.676908][ T6360] el0_svc_common+0x138/0x258 [ 233.677622][ T6360] do_el0_svc+0x58/0x14c [ 233.678248][ T6360] el0_svc+0x78/0x1e0 [ 233.678833][ T6360] el0t_64_sync_handler+0xcc/0xe4 [ 233.679709][ T6360] el0t_64_sync+0x1a0/0x1a4 [ 233.680611][ T6360] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.682670][ T6360] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.825895][ T6362] loop1: detected capacity change from 0 to 32768 [ 233.833757][ T6362] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.835140][ T6362] CPU: 0 PID: 6362 Comm: syz.1.684 Not tainted syzkaller #0 [ 233.836204][ T6362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 233.837819][ T6362] Call trace: [ 233.838327][ T6362] dump_backtrace+0x0/0x43c [ 233.838991][ T6362] show_stack+0x2c/0x3c [ 233.839588][ T6362] __dump_stack+0x30/0x40 [ 233.840256][ T6362] dump_stack_lvl+0xf8/0x160 [ 233.840953][ T6362] dump_stack+0x1c/0x5c [ 233.841592][ T6362] sysfs_create_dir_ns+0x22c/0x24c [ 233.842347][ T6362] kobject_add_internal+0x590/0xc54 [ 233.843122][ T6362] kobject_init_and_add+0x118/0x17c [ 233.843872][ T6362] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.844585][ T6362] gfs2_fill_super+0xdac/0x19e0 [ 233.845303][ T6362] get_tree_bdev+0x358/0x544 [ 233.846038][ T6362] gfs2_get_tree+0x54/0x1b4 [ 233.846714][ T6362] vfs_get_tree+0x90/0x274 [ 233.847373][ T6362] do_new_mount+0x228/0x810 [ 233.848121][ T6362] path_mount+0x5b4/0x1000 [ 233.848825][ T6362] __arm64_sys_mount+0x514/0x5e4 [ 233.849594][ T6362] invoke_syscall+0x98/0x2b8 [ 233.850334][ T6362] el0_svc_common+0x138/0x258 [ 233.851035][ T6362] do_el0_svc+0x58/0x14c [ 233.851673][ T6362] el0_svc+0x78/0x1e0 [ 233.852292][ T6362] el0t_64_sync_handler+0xcc/0xe4 [ 233.853083][ T6362] el0t_64_sync+0x1a0/0x1a4 [ 233.853943][ T6362] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.856139][ T6362] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.995123][ T6364] loop1: detected capacity change from 0 to 32768 [ 234.002521][ T6364] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.003694][ T6364] CPU: 1 PID: 6364 Comm: syz.1.685 Not tainted syzkaller #0 [ 234.004798][ T6364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.006186][ T6364] Call trace: [ 234.006632][ T6364] dump_backtrace+0x0/0x43c [ 234.007362][ T6364] show_stack+0x2c/0x3c [ 234.008046][ T6364] __dump_stack+0x30/0x40 [ 234.008723][ T6364] dump_stack_lvl+0xf8/0x160 [ 234.009496][ T6364] dump_stack+0x1c/0x5c [ 234.010150][ T6364] sysfs_create_dir_ns+0x22c/0x24c [ 234.010912][ T6364] kobject_add_internal+0x590/0xc54 [ 234.011731][ T6364] kobject_init_and_add+0x118/0x17c [ 234.012589][ T6364] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.013315][ T6364] gfs2_fill_super+0xdac/0x19e0 [ 234.014085][ T6364] get_tree_bdev+0x358/0x544 [ 234.014808][ T6364] gfs2_get_tree+0x54/0x1b4 [ 234.015498][ T6364] vfs_get_tree+0x90/0x274 [ 234.016163][ T6364] do_new_mount+0x228/0x810 [ 234.016858][ T6364] path_mount+0x5b4/0x1000 [ 234.017535][ T6364] __arm64_sys_mount+0x514/0x5e4 [ 234.018282][ T6364] invoke_syscall+0x98/0x2b8 [ 234.018959][ T6364] el0_svc_common+0x138/0x258 [ 234.019714][ T6364] do_el0_svc+0x58/0x14c [ 234.020406][ T6364] el0_svc+0x78/0x1e0 [ 234.021037][ T6364] el0t_64_sync_handler+0xcc/0xe4 [ 234.021856][ T6364] el0t_64_sync+0x1a0/0x1a4 [ 234.024306][ T6364] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.026439][ T6364] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.160755][ T6366] loop1: detected capacity change from 0 to 32768 [ 234.247115][ T6366] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.248329][ T6366] CPU: 0 PID: 6366 Comm: syz.1.686 Not tainted syzkaller #0 [ 234.249496][ T6366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.251040][ T6366] Call trace: [ 234.251574][ T6366] dump_backtrace+0x0/0x43c [ 234.252255][ T6366] show_stack+0x2c/0x3c [ 234.252903][ T6366] __dump_stack+0x30/0x40 [ 234.253505][ T6366] dump_stack_lvl+0xf8/0x160 [ 234.254130][ T6366] dump_stack+0x1c/0x5c [ 234.254724][ T6366] sysfs_create_dir_ns+0x22c/0x24c [ 234.255463][ T6366] kobject_add_internal+0x590/0xc54 [ 234.256221][ T6366] kobject_init_and_add+0x118/0x17c [ 234.257035][ T6366] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.257756][ T6366] gfs2_fill_super+0xdac/0x19e0 [ 234.258537][ T6366] get_tree_bdev+0x358/0x544 [ 234.259259][ T6366] gfs2_get_tree+0x54/0x1b4 [ 234.259979][ T6366] vfs_get_tree+0x90/0x274 [ 234.260656][ T6366] do_new_mount+0x228/0x810 [ 234.261374][ T6366] path_mount+0x5b4/0x1000 [ 234.262075][ T6366] __arm64_sys_mount+0x514/0x5e4 [ 234.262773][ T6366] invoke_syscall+0x98/0x2b8 [ 234.263426][ T6366] el0_svc_common+0x138/0x258 [ 234.264052][ T6366] do_el0_svc+0x58/0x14c [ 234.264731][ T6366] el0_svc+0x78/0x1e0 [ 234.265307][ T6366] el0t_64_sync_handler+0xcc/0xe4 [ 234.266035][ T6366] el0t_64_sync+0x1a0/0x1a4 [ 234.268211][ T6366] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.270297][ T6366] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.410521][ T6368] loop1: detected capacity change from 0 to 32768 [ 234.456586][ T6368] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.457839][ T6368] CPU: 0 PID: 6368 Comm: syz.1.687 Not tainted syzkaller #0 [ 234.458956][ T6368] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.460414][ T6368] Call trace: [ 234.460946][ T6368] dump_backtrace+0x0/0x43c [ 234.461706][ T6368] show_stack+0x2c/0x3c [ 234.462337][ T6368] __dump_stack+0x30/0x40 [ 234.463028][ T6368] dump_stack_lvl+0xf8/0x160 [ 234.463704][ T6368] dump_stack+0x1c/0x5c [ 234.464382][ T6368] sysfs_create_dir_ns+0x22c/0x24c [ 234.465235][ T6368] kobject_add_internal+0x590/0xc54 [ 234.466034][ T6368] kobject_init_and_add+0x118/0x17c [ 234.466809][ T6368] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.467479][ T6368] gfs2_fill_super+0xdac/0x19e0 [ 234.468240][ T6368] get_tree_bdev+0x358/0x544 [ 234.468955][ T6368] gfs2_get_tree+0x54/0x1b4 [ 234.469717][ T6368] vfs_get_tree+0x90/0x274 [ 234.470385][ T6368] do_new_mount+0x228/0x810 [ 234.471160][ T6368] path_mount+0x5b4/0x1000 [ 234.471827][ T6368] __arm64_sys_mount+0x514/0x5e4 [ 234.472583][ T6368] invoke_syscall+0x98/0x2b8 [ 234.473280][ T6368] el0_svc_common+0x138/0x258 [ 234.473993][ T6368] do_el0_svc+0x58/0x14c [ 234.474598][ T6368] el0_svc+0x78/0x1e0 [ 234.475203][ T6368] el0t_64_sync_handler+0xcc/0xe4 [ 234.475946][ T6368] el0t_64_sync+0x1a0/0x1a4 [ 234.476725][ T6368] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.478697][ T6368] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.686683][ T6370] loop1: detected capacity change from 0 to 32768 [ 234.726318][ T6370] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.727539][ T6370] CPU: 1 PID: 6370 Comm: syz.1.688 Not tainted syzkaller #0 [ 234.728772][ T6370] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.730348][ T6370] Call trace: [ 234.730871][ T6370] dump_backtrace+0x0/0x43c [ 234.731615][ T6370] show_stack+0x2c/0x3c [ 234.732251][ T6370] __dump_stack+0x30/0x40 [ 234.732927][ T6370] dump_stack_lvl+0xf8/0x160 [ 234.733608][ T6370] dump_stack+0x1c/0x5c [ 234.734215][ T6370] sysfs_create_dir_ns+0x22c/0x24c [ 234.735015][ T6370] kobject_add_internal+0x590/0xc54 [ 234.735873][ T6370] kobject_init_and_add+0x118/0x17c [ 234.736671][ T6370] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.737402][ T6370] gfs2_fill_super+0xdac/0x19e0 [ 234.738152][ T6370] get_tree_bdev+0x358/0x544 [ 234.738884][ T6370] gfs2_get_tree+0x54/0x1b4 [ 234.739569][ T6370] vfs_get_tree+0x90/0x274 [ 234.740257][ T6370] do_new_mount+0x228/0x810 [ 234.740892][ T6370] path_mount+0x5b4/0x1000 [ 234.741617][ T6370] __arm64_sys_mount+0x514/0x5e4 [ 234.742406][ T6370] invoke_syscall+0x98/0x2b8 [ 234.743137][ T6370] el0_svc_common+0x138/0x258 [ 234.743891][ T6370] do_el0_svc+0x58/0x14c [ 234.744535][ T6370] el0_svc+0x78/0x1e0 [ 234.745130][ T6370] el0t_64_sync_handler+0xcc/0xe4 [ 234.745962][ T6370] el0t_64_sync+0x1a0/0x1a4 [ 234.748001][ T6370] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.750192][ T6370] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.755680][ T27] INFO: task kworker/0:0:7 blocked for more than 143 seconds. [ 234.757019][ T27] Not tainted syzkaller #0 [ 234.757782][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 234.759027][ T27] task:kworker/0:0 state:D stack: 0 pid: 7 ppid: 2 flags:0x00000008 [ 234.760475][ T27] Workqueue: gfs_recovery gfs2_recover_func [ 234.761457][ T27] Call trace: [ 234.761955][ T27] __switch_to+0x2f4/0x558 [ 234.762731][ T27] __schedule+0xe08/0x1bf8 [ 234.763469][ T27] schedule+0x11c/0x1c8 [ 234.764113][ T27] io_schedule+0x84/0x160 [ 234.764763][ T27] wait_on_page_bit_common+0x61c/0xa74 [ 234.769683][ T27] wait_on_page_bit+0x58/0x68 [ 234.770416][ T27] gfs2_jhead_process_page+0x1e0/0x698 [ 234.771179][ T27] gfs2_find_jhead+0xb6c/0xca8 [ 234.771864][ T27] gfs2_recover_func+0x500/0x157c [ 234.772650][ T27] process_one_work+0x79c/0x1140 [ 234.773484][ T27] worker_thread+0x8f4/0x101c [ 234.774159][ T27] kthread+0x374/0x454 [ 234.774829][ T27] ret_from_fork+0x10/0x20 [ 234.776082][ T27] INFO: task syz.0.16:4972 blocked for more than 143 seconds. [ 234.777197][ T27] Not tainted syzkaller #0 [ 234.777933][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 234.779150][ T27] task:syz.0.16 state:D stack: 0 pid: 4972 ppid: 4764 flags:0x00000009 [ 234.780650][ T27] Call trace: [ 234.781151][ T27] __switch_to+0x2f4/0x558 [ 234.781751][ T27] __schedule+0xe08/0x1bf8 [ 234.782436][ T27] schedule+0x11c/0x1c8 [ 234.783015][ T27] bit_wait+0x1c/0xac [ 234.783544][ T27] out_of_line_wait_on_bit+0x15c/0x200 [ 234.784435][ T27] gfs2_recover_journal+0xf0/0x16c [ 234.786917][ T27] init_journal+0x133c/0x1d7c [ 234.787606][ T27] init_inodes+0xe0/0x2d4 [ 234.788302][ T27] gfs2_fill_super+0x121c/0x19e0 [ 234.789018][ T27] get_tree_bdev+0x358/0x544 [ 234.789750][ T27] gfs2_get_tree+0x54/0x1b4 [ 234.790434][ T27] vfs_get_tree+0x90/0x274 [ 234.791072][ T27] do_new_mount+0x228/0x810 [ 234.791764][ T27] path_mount+0x5b4/0x1000 [ 234.792453][ T27] __arm64_sys_mount+0x514/0x5e4 [ 234.793153][ T27] invoke_syscall+0x98/0x2b8 [ 234.793807][ T27] el0_svc_common+0x138/0x258 [ 234.794512][ T27] do_el0_svc+0x58/0x14c [ 234.796038][ T27] el0_svc+0x78/0x1e0 [ 234.796689][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 234.797448][ T27] el0t_64_sync+0x1a0/0x1a4 [ 234.798210][ T27] [ 234.798210][ T27] Showing all locks held in the system: [ 234.799434][ T27] 2 locks held by kworker/0:0/7: [ 234.800295][ T27] #0: ffff0000c6845d38 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 [ 234.801879][ T27] #1: ffff80001b2d7c00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 [ 234.803543][ T27] 1 lock held by khungtaskd/27: [ 234.804225][ T27] #0: ffff8000143513a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 234.807377][ T27] 2 locks held by getty/3806: [ 234.808037][ T27] #0: ffff0000d4374098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 234.809470][ T27] #1: ffff80001bd5e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 234.811064][ T27] 1 lock held by syz.0.16/4972: [ 234.811795][ T27] #0: ffff0000d9cee0e0 (&type->s_umount_key#51/1){+.+.}-{3:3}, at: alloc_super+0x1a8/0x824 [ 234.813423][ T27] 2 locks held by udevd/4976: [ 234.814200][ T27] #0: ffff0000cbaa9118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xdc/0x6ac [ 234.816679][ T27] #1: ffff0000cbb39468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xa4/0x978 [ 234.818035][ T27] [ 234.818363][ T27] ============================================= [ 234.818363][ T27] [ 234.819493][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 234.820433][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 234.821459][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 234.822917][ T27] Call trace: [ 234.823384][ T27] dump_backtrace+0x0/0x43c [ 234.824065][ T27] show_stack+0x2c/0x3c [ 234.824687][ T27] __dump_stack+0x30/0x40 [ 234.825354][ T27] dump_stack_lvl+0xf8/0x160 [ 234.826106][ T27] dump_stack+0x1c/0x5c [ 234.826723][ T27] panic+0x2e4/0x854 [ 234.827365][ T27] hung_task_panic+0x0/0x2c [ 234.828086][ T27] kthread+0x374/0x454 [ 234.828724][ T27] ret_from_fork+0x10/0x20 [ 234.829420][ T27] SMP: stopping secondary CPUs [ 234.830136][ T27] Kernel Offset: disabled [ 234.830768][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 234.831506][ T27] Memory Limit: none [ 235.165339][ T27] Rebooting in 86400 seconds..