internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 58.038578][ T4697] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 58.047633][ T4440] device veth1_vlan entered promiscuous mode [ 58.114077][ T4437] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.116426][ T4594] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 58.117932][ T4594] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 58.119299][ T4594] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.123783][ T4594] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.156069][ T4699] loop3: detected capacity change from 0 to 32768 [ 58.168030][ T4437] device veth0_vlan entered promiscuous mode [ 58.171658][ T4437] device veth1_vlan entered promiscuous mode [ 58.178689][ T4437] device veth0_macvtap entered promiscuous mode [ 58.181398][ T4437] device veth1_macvtap entered promiscuous mode [ 58.185454][ T4437] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 58.187044][ T4437] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 58.188564][ T4437] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 58.190117][ T4437] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 58.191590][ T4437] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 58.193057][ T4437] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 58.195167][ T4437] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 58.197110][ T4437] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 58.198470][ T4437] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 58.199916][ T4437] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 58.201247][ T4437] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 58.202642][ T4437] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 58.204176][ T4437] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 58.206185][ T4437] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 58.208395][ T4437] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.209777][ T4437] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.211054][ T4437] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.212270][ T4437] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.227600][ T4699] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 58.228795][ T4699] CPU: 0 PID: 4699 Comm: syz.3.150 Not tainted syzkaller #0 [ 58.229838][ T4699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 58.231305][ T4699] Call trace: [ 58.231823][ T4699] dump_backtrace+0x1c8/0x1f4 [ 58.232533][ T4699] show_stack+0x2c/0x3c [ 58.233098][ T4699] __dump_stack+0x30/0x40 [ 58.233768][ T4699] dump_stack_lvl+0xf8/0x160 [ 58.234458][ T4699] dump_stack+0x1c/0x5c [ 58.235006][ T4699] sysfs_create_dir_ns+0x22c/0x24c [ 58.235794][ T4699] kobject_add_internal+0x5a8/0xb30 [ 58.236487][ T4699] kobject_init_and_add+0x118/0x17c [ 58.237218][ T4699] gfs2_sys_fs_add+0x1dc/0x3d8 [ 58.237903][ T4699] gfs2_fill_super+0xdec/0x19ec [ 58.238565][ T4699] get_tree_bdev+0x358/0x544 [ 58.239190][ T4699] gfs2_get_tree+0x54/0x1b4 [ 58.239829][ T4699] vfs_get_tree+0x90/0x274 [ 58.240483][ T4699] do_new_mount+0x228/0x810 [ 58.241108][ T4699] path_mount+0x5b4/0xe78 [ 58.241726][ T4699] __arm64_sys_mount+0x49c/0x584 [ 58.242445][ T4699] invoke_syscall+0x98/0x2bc [ 58.243089][ T4699] el0_svc_common+0x138/0x258 [ 58.243751][ T4699] do_el0_svc+0x58/0x13c [ 58.244360][ T4699] el0_svc+0x58/0x138 [ 58.244901][ T4699] el0t_64_sync_handler+0x84/0xf0 [ 58.245682][ T4699] el0t_64_sync+0x18c/0x190 [ 58.245858][ T4700] loop4: detected capacity change from 0 to 32768 [ 58.246392][ T4699] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 58.249147][ T4699] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 58.255312][ T4700] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 58.256356][ T4700] CPU: 1 PID: 4700 Comm: syz.4.21 Not tainted syzkaller #0 [ 58.257460][ T4700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 58.258958][ T4700] Call trace: [ 58.259444][ T4700] dump_backtrace+0x1c8/0x1f4 [ 58.260182][ T4700] show_stack+0x2c/0x3c [ 58.260764][ T4700] __dump_stack+0x30/0x40 [ 58.261455][ T4700] dump_stack_lvl+0xf8/0x160 [ 58.262120][ T4700] dump_stack+0x1c/0x5c [ 58.262790][ T4700] sysfs_create_dir_ns+0x22c/0x24c [ 58.263557][ T4700] kobject_add_internal+0x5a8/0xb30 [ 58.264323][ T4700] kobject_init_and_add+0x118/0x17c [ 58.265089][ T4700] gfs2_sys_fs_add+0x1dc/0x3d8 [ 58.265776][ T4700] gfs2_fill_super+0xdec/0x19ec [ 58.266441][ T4700] get_tree_bdev+0x358/0x544 [ 58.267121][ T4700] gfs2_get_tree+0x54/0x1b4 [ 58.267778][ T4700] vfs_get_tree+0x90/0x274 [ 58.268407][ T4700] do_new_mount+0x228/0x810 [ 58.269007][ T4700] path_mount+0x5b4/0xe78 [ 58.269629][ T4700] __arm64_sys_mount+0x49c/0x584 [ 58.270346][ T4700] invoke_syscall+0x98/0x2bc [ 58.271021][ T4700] el0_svc_common+0x138/0x258 [ 58.271643][ T4700] do_el0_svc+0x58/0x13c [ 58.272288][ T4700] el0_svc+0x58/0x138 [ 58.272867][ T4700] el0t_64_sync_handler+0x84/0xf0 [ 58.273571][ T4700] el0t_64_sync+0x18c/0x190 [ 58.274302][ T4700] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 58.276147][ T4700] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 58.285037][ T4440] device veth0_macvtap entered promiscuous mode [ 58.287592][ T4440] device veth1_macvtap entered promiscuous mode [ 58.424699][ T4702] loop3: detected capacity change from 0 to 32768 [ 58.432243][ T4702] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 58.433281][ T4702] CPU: 1 PID: 4702 Comm: syz.3.152 Not tainted syzkaller #0 [ 58.434344][ T4702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 58.435739][ T4702] Call trace: [ 58.436177][ T4702] dump_backtrace+0x1c8/0x1f4 [ 58.436875][ T4702] show_stack+0x2c/0x3c [ 58.437461][ T4702] __dump_stack+0x30/0x40 [ 58.438082][ T4702] dump_stack_lvl+0xf8/0x160 [ 58.438772][ T4702] dump_stack+0x1c/0x5c [ 58.439374][ T4702] sysfs_create_dir_ns+0x22c/0x24c [ 58.440126][ T4702] kobject_add_internal+0x5a8/0xb30 [ 58.440893][ T4702] kobject_init_and_add+0x118/0x17c [ 58.441651][ T4702] gfs2_sys_fs_add+0x1dc/0x3d8 [ 58.442301][ T4702] gfs2_fill_super+0xdec/0x19ec [ 58.443026][ T4702] get_tree_bdev+0x358/0x544 [ 58.443764][ T4702] gfs2_get_tree+0x54/0x1b4 [ 58.444420][ T4702] vfs_get_tree+0x90/0x274 [ 58.445057][ T4702] do_new_mount+0x228/0x810 [ 58.445701][ T4702] path_mount+0x5b4/0xe78 [ 58.446359][ T4702] __arm64_sys_mount+0x49c/0x584 [ 58.447065][ T4702] invoke_syscall+0x98/0x2bc [ 58.447717][ T4702] el0_svc_common+0x138/0x258 [ 58.448475][ T4702] do_el0_svc+0x58/0x13c [ 58.449127][ T4702] el0_svc+0x58/0x138 [ 58.449761][ T4702] el0t_64_sync_handler+0x84/0xf0 [ 58.450485][ T4702] el0t_64_sync+0x18c/0x190 [ 58.451211][ T4702] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 58.453101][ T4702] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 58.456273][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 58.457921][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 58.459334][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 58.461106][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 58.462516][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 58.463939][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 58.468154][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 58.612870][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 58.734349][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 58.735884][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 58.737227][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 58.738677][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 58.742912][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 58.744325][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 58.751168][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 58.756885][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 58.902714][ T4594] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 58.903959][ T4594] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 58.910260][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 58.911659][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 58.913103][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 58.914400][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 58.915827][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 58.963216][ T4440] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 58.964877][ T4440] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 58.966306][ T4440] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 58.967748][ T4440] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 58.969130][ T4440] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 58.980246][ T4440] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 58.981806][ T4440] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 59.024045][ T4709] loop3: detected capacity change from 0 to 32768 [ 59.027887][ T4440] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 59.030684][ T4440] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.033085][ T4440] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 59.034692][ T4440] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 59.036146][ T4440] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 59.037668][ T4440] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 59.039086][ T4440] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 59.040731][ T4440] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 59.042143][ T4440] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 59.043645][ T4440] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 59.045616][ T4440] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.047827][ T4440] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.049111][ T4440] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.061057][ T4709] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 59.062194][ T4709] CPU: 1 PID: 4709 Comm: syz.3.159 Not tainted syzkaller #0 [ 59.063236][ T4709] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 59.064646][ T4709] Call trace: [ 59.065126][ T4709] dump_backtrace+0x1c8/0x1f4 [ 59.065814][ T4709] show_stack+0x2c/0x3c [ 59.066466][ T4709] __dump_stack+0x30/0x40 [ 59.067126][ T4709] dump_stack_lvl+0xf8/0x160 [ 59.067782][ T4709] dump_stack+0x1c/0x5c [ 59.068337][ T4709] sysfs_create_dir_ns+0x22c/0x24c [ 59.069016][ T4709] kobject_add_internal+0x5a8/0xb30 [ 59.069738][ T4709] kobject_init_and_add+0x118/0x17c [ 59.070517][ T4709] gfs2_sys_fs_add+0x1dc/0x3d8 [ 59.071238][ T4709] gfs2_fill_super+0xdec/0x19ec [ 59.071977][ T4709] get_tree_bdev+0x358/0x544 [ 59.072653][ T4709] gfs2_get_tree+0x54/0x1b4 [ 59.073317][ T4709] vfs_get_tree+0x90/0x274 [ 59.073999][ T4709] do_new_mount+0x228/0x810 [ 59.074647][ T4709] path_mount+0x5b4/0xe78 [ 59.075306][ T4709] __arm64_sys_mount+0x49c/0x584 [ 59.076105][ T4709] invoke_syscall+0x98/0x2bc [ 59.076801][ T4709] el0_svc_common+0x138/0x258 [ 59.077447][ T4709] do_el0_svc+0x58/0x13c [ 59.078009][ T4709] el0_svc+0x58/0x138 [ 59.078590][ T4709] el0t_64_sync_handler+0x84/0xf0 [ 59.079306][ T4709] el0t_64_sync+0x18c/0x190 [ 59.079987][ T4709] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 59.081816][ T4709] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 59.091870][ T4440] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.093464][ T4440] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.095607][ T4710] loop4: detected capacity change from 0 to 32768 [ 59.097671][ T4710] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 59.098748][ T4710] CPU: 0 PID: 4710 Comm: syz.4.160 Not tainted syzkaller #0 [ 59.099822][ T4710] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 59.101264][ T4710] Call trace: [ 59.101743][ T4710] dump_backtrace+0x1c8/0x1f4 [ 59.102458][ T4710] show_stack+0x2c/0x3c [ 59.103032][ T4710] __dump_stack+0x30/0x40 [ 59.103650][ T4710] dump_stack_lvl+0xf8/0x160 [ 59.104344][ T4710] dump_stack+0x1c/0x5c [ 59.104951][ T4710] sysfs_create_dir_ns+0x22c/0x24c [ 59.105729][ T4710] kobject_add_internal+0x5a8/0xb30 [ 59.106439][ T4710] kobject_init_and_add+0x118/0x17c [ 59.107186][ T4710] gfs2_sys_fs_add+0x1dc/0x3d8 [ 59.107870][ T4710] gfs2_fill_super+0xdec/0x19ec [ 59.108556][ T4710] get_tree_bdev+0x358/0x544 [ 59.109236][ T4710] gfs2_get_tree+0x54/0x1b4 [ 59.109874][ T4710] vfs_get_tree+0x90/0x274 [ 59.110566][ T4710] do_new_mount+0x228/0x810 [ 59.111184][ T4710] path_mount+0x5b4/0xe78 [ 59.111781][ T4710] __arm64_sys_mount+0x49c/0x584 [ 59.112495][ T4710] invoke_syscall+0x98/0x2bc [ 59.113217][ T4710] el0_svc_common+0x138/0x258 [ 59.113859][ T4710] do_el0_svc+0x58/0x13c [ 59.114486][ T4710] el0_svc+0x58/0x138 [ 59.115055][ T4710] el0t_64_sync_handler+0x84/0xf0 [ 59.115727][ T4710] el0t_64_sync+0x18c/0x190 [ 59.116526][ T4710] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 59.118454][ T4710] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 59.130184][ T11] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.131427][ T11] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.135599][ T4594] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.137258][ T4594] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.138719][ T4594] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.161170][ T4594] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.162635][ T4347] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 59.164572][ T4594] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 59.225396][ T39] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.226617][ T39] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.228421][ T4539] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.248869][ T39] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.293805][ T39] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.299195][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 59.311261][ T4714] loop4: detected capacity change from 0 to 32768 [ 59.312971][ T4714] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 59.314139][ T4714] CPU: 1 PID: 4714 Comm: syz.4.162 Not tainted syzkaller #0 [ 59.315301][ T4714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 59.316752][ T4714] Call trace: [ 59.317213][ T4714] dump_backtrace+0x1c8/0x1f4 [ 59.317912][ T4714] show_stack+0x2c/0x3c [ 59.318524][ T4714] __dump_stack+0x30/0x40 [ 59.319180][ T4714] dump_stack_lvl+0xf8/0x160 [ 59.319826][ T4714] dump_stack+0x1c/0x5c [ 59.320454][ T4714] sysfs_create_dir_ns+0x22c/0x24c [ 59.321229][ T4714] kobject_add_internal+0x5a8/0xb30 [ 59.322002][ T4714] kobject_init_and_add+0x118/0x17c [ 59.322770][ T4714] gfs2_sys_fs_add+0x1dc/0x3d8 [ 59.323487][ T4714] gfs2_fill_super+0xdec/0x19ec [ 59.324218][ T4714] get_tree_bdev+0x358/0x544 [ 59.324875][ T4714] gfs2_get_tree+0x54/0x1b4 [ 59.325567][ T4714] vfs_get_tree+0x90/0x274 [ 59.326201][ T4714] do_new_mount+0x228/0x810 [ 59.326913][ T4714] path_mount+0x5b4/0xe78 [ 59.327540][ T4714] __arm64_sys_mount+0x49c/0x584 [ 59.328255][ T4714] invoke_syscall+0x98/0x2bc [ 59.328952][ T4714] el0_svc_common+0x138/0x258 [ 59.329663][ T4714] do_el0_svc+0x58/0x13c [ 59.330268][ T4714] el0_svc+0x58/0x138 [ 59.330920][ T4714] el0t_64_sync_handler+0x84/0xf0 [ 59.331624][ T4714] el0t_64_sync+0x18c/0x190 [ 59.332354][ T4714] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 59.334134][ T4714] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 59.353045][ T4713] loop3: detected capacity change from 0 to 32768 [ 59.354717][ T4713] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 59.355819][ T4713] CPU: 0 PID: 4713 Comm: syz.3.163 Not tainted syzkaller #0 [ 59.356862][ T4713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 59.358309][ T4713] Call trace: [ 59.358774][ T4713] dump_backtrace+0x1c8/0x1f4 [ 59.359460][ T4713] show_stack+0x2c/0x3c [ 59.360057][ T4713] __dump_stack+0x30/0x40 [ 59.360758][ T4713] dump_stack_lvl+0xf8/0x160 [ 59.361413][ T4713] dump_stack+0x1c/0x5c [ 59.362025][ T4713] sysfs_create_dir_ns+0x22c/0x24c [ 59.362789][ T4713] kobject_add_internal+0x5a8/0xb30 [ 59.363534][ T4713] kobject_init_and_add+0x118/0x17c [ 59.364260][ T4713] gfs2_sys_fs_add+0x1dc/0x3d8 [ 59.364963][ T4713] gfs2_fill_super+0xdec/0x19ec [ 59.365654][ T4713] get_tree_bdev+0x358/0x544 [ 59.366298][ T4713] gfs2_get_tree+0x54/0x1b4 [ 59.366907][ T4713] vfs_get_tree+0x90/0x274 [ 59.367540][ T4713] do_new_mount+0x228/0x810 [ 59.368190][ T4713] path_mount+0x5b4/0xe78 [ 59.368791][ T4713] __arm64_sys_mount+0x49c/0x584 [ 59.369463][ T4713] invoke_syscall+0x98/0x2bc [ 59.370130][ T4713] el0_svc_common+0x138/0x258 [ 59.370763][ T4713] do_el0_svc+0x58/0x13c [ 59.371387][ T4713] el0_svc+0x58/0x138 [ 59.372007][ T4713] el0t_64_sync_handler+0x84/0xf0 [ 59.372678][ T4713] el0t_64_sync+0x18c/0x190 [ 59.373375][ T4713] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 59.375101][ T4713] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 59.380244][ T4443] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 59.383483][ T4443] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 59.384973][ T4443] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 59.386918][ T4443] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 59.388633][ T4443] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 59.390998][ T4443] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 59.497285][ T4717] loop3: detected capacity change from 0 to 32768 [ 59.501422][ T4717] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 59.502608][ T4717] CPU: 0 PID: 4717 Comm: syz.3.164 Not tainted syzkaller #0 [ 59.503849][ T4717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 59.505349][ T4717] Call trace: [ 59.505825][ T4717] dump_backtrace+0x1c8/0x1f4 [ 59.506545][ T4717] show_stack+0x2c/0x3c [ 59.507175][ T4717] __dump_stack+0x30/0x40 [ 59.507797][ T4717] dump_stack_lvl+0xf8/0x160 [ 59.508464][ T4717] dump_stack+0x1c/0x5c [ 59.509057][ T4717] sysfs_create_dir_ns+0x22c/0x24c [ 59.509792][ T4717] kobject_add_internal+0x5a8/0xb30 [ 59.510504][ T4717] kobject_init_and_add+0x118/0x17c [ 59.511198][ T4717] gfs2_sys_fs_add+0x1dc/0x3d8 [ 59.511838][ T4717] gfs2_fill_super+0xdec/0x19ec [ 59.512553][ T4717] get_tree_bdev+0x358/0x544 [ 59.513241][ T4717] gfs2_get_tree+0x54/0x1b4 [ 59.513844][ T4717] vfs_get_tree+0x90/0x274 [ 59.514489][ T4717] do_new_mount+0x228/0x810 [ 59.515158][ T4717] path_mount+0x5b4/0xe78 [ 59.515771][ T4717] __arm64_sys_mount+0x49c/0x584 [ 59.516531][ T4717] invoke_syscall+0x98/0x2bc [ 59.517196][ T4717] el0_svc_common+0x138/0x258 [ 59.517883][ T4717] do_el0_svc+0x58/0x13c [ 59.518513][ T4717] el0_svc+0x58/0x138 [ 59.519166][ T4717] el0t_64_sync_handler+0x84/0xf0 [ 59.519901][ T4717] el0t_64_sync+0x18c/0x190 [ 59.520670][ T4717] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 59.522513][ T4717] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 59.664148][ T4346] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 59.665448][ T4721] loop2: detected capacity change from 0 to 32768 [ 59.680313][ T4721] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 59.681488][ T4721] CPU: 1 PID: 4721 Comm: syz.2.19 Not tainted syzkaller #0 [ 59.682631][ T4721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 59.684044][ T4721] Call trace: [ 59.684544][ T4721] dump_backtrace+0x1c8/0x1f4 [ 59.685275][ T4721] show_stack+0x2c/0x3c [ 59.685877][ T4721] __dump_stack+0x30/0x40 [ 59.686518][ T4721] dump_stack_lvl+0xf8/0x160 [ 59.687188][ T4721] dump_stack+0x1c/0x5c [ 59.687826][ T4721] sysfs_create_dir_ns+0x22c/0x24c [ 59.688595][ T4721] kobject_add_internal+0x5a8/0xb30 [ 59.689402][ T4721] kobject_init_and_add+0x118/0x17c [ 59.690090][ T4721] gfs2_sys_fs_add+0x1dc/0x3d8 [ 59.690725][ T4721] gfs2_fill_super+0xdec/0x19ec [ 59.691402][ T4721] get_tree_bdev+0x358/0x544 [ 59.692078][ T4721] gfs2_get_tree+0x54/0x1b4 [ 59.692817][ T4721] vfs_get_tree+0x90/0x274 [ 59.693496][ T4721] do_new_mount+0x228/0x810 [ 59.694143][ T4721] path_mount+0x5b4/0xe78 [ 59.694782][ T4721] __arm64_sys_mount+0x49c/0x584 [ 59.695450][ T4721] invoke_syscall+0x98/0x2bc [ 59.696131][ T4721] el0_svc_common+0x138/0x258 [ 59.696773][ T4721] do_el0_svc+0x58/0x13c [ 59.697403][ T4721] el0_svc+0x58/0x138 [ 59.697949][ T4721] el0t_64_sync_handler+0x84/0xf0 [ 59.698668][ T4721] el0t_64_sync+0x18c/0x190 [ 59.699753][ T4721] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 59.701716][ T4721] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 59.777601][ T4722] loop4: detected capacity change from 0 to 32768 [ 59.787917][ T4722] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 59.789091][ T4722] CPU: 0 PID: 4722 Comm: syz.4.166 Not tainted syzkaller #0 [ 59.790206][ T4722] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 59.791709][ T4722] Call trace: [ 59.792171][ T4722] dump_backtrace+0x1c8/0x1f4 [ 59.792913][ T4722] show_stack+0x2c/0x3c [ 59.793513][ T4722] __dump_stack+0x30/0x40 [ 59.794177][ T4722] dump_stack_lvl+0xf8/0x160 [ 59.794819][ T4722] dump_stack+0x1c/0x5c [ 59.795418][ T4722] sysfs_create_dir_ns+0x22c/0x24c [ 59.796191][ T4722] kobject_add_internal+0x5a8/0xb30 [ 59.797009][ T4722] kobject_init_and_add+0x118/0x17c [ 59.797740][ T4722] gfs2_sys_fs_add+0x1dc/0x3d8 [ 59.798437][ T4722] gfs2_fill_super+0xdec/0x19ec [ 59.799133][ T4722] get_tree_bdev+0x358/0x544 [ 59.799808][ T4722] gfs2_get_tree+0x54/0x1b4 [ 59.800457][ T4722] vfs_get_tree+0x90/0x274 [ 59.801074][ T4722] do_new_mount+0x228/0x810 [ 59.801684][ T4722] path_mount+0x5b4/0xe78 [ 59.802307][ T4722] __arm64_sys_mount+0x49c/0x584 [ 59.803012][ T4722] invoke_syscall+0x98/0x2bc [ 59.803710][ T4722] el0_svc_common+0x138/0x258 [ 59.804374][ T4722] do_el0_svc+0x58/0x13c [ 59.805025][ T4722] el0_svc+0x58/0x138 [ 59.805590][ T4722] el0t_64_sync_handler+0x84/0xf0 [ 59.806318][ T4722] el0t_64_sync+0x18c/0x190 [ 59.807031][ T4722] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 59.808880][ T4722] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 59.822204][ T4723] loop0: detected capacity change from 0 to 32768 [ 59.844277][ T4723] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 59.845475][ T4723] CPU: 1 PID: 4723 Comm: syz.0.17 Not tainted syzkaller #0 [ 59.846605][ T4723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 59.848115][ T4723] Call trace: [ 59.848614][ T4723] dump_backtrace+0x1c8/0x1f4 [ 59.849338][ T4723] show_stack+0x2c/0x3c [ 59.849961][ T4723] __dump_stack+0x30/0x40 [ 59.850612][ T4723] dump_stack_lvl+0xf8/0x160 [ 59.851308][ T4723] dump_stack+0x1c/0x5c [ 59.851950][ T4723] sysfs_create_dir_ns+0x22c/0x24c [ 59.852745][ T4723] kobject_add_internal+0x5a8/0xb30 [ 59.853547][ T4723] kobject_init_and_add+0x118/0x17c [ 59.854365][ T4723] gfs2_sys_fs_add+0x1dc/0x3d8 [ 59.855008][ T4723] gfs2_fill_super+0xdec/0x19ec [ 59.855752][ T4723] get_tree_bdev+0x358/0x544 [ 59.856450][ T4723] gfs2_get_tree+0x54/0x1b4 [ 59.857127][ T4723] vfs_get_tree+0x90/0x274 [ 59.857748][ T4723] do_new_mount+0x228/0x810 [ 59.858428][ T4723] path_mount+0x5b4/0xe78 [ 59.859001][ T4723] __arm64_sys_mount+0x49c/0x584 [ 59.859724][ T4723] invoke_syscall+0x98/0x2bc [ 59.860405][ T4723] el0_svc_common+0x138/0x258 [ 59.861120][ T4723] do_el0_svc+0x58/0x13c [ 59.861759][ T4723] el0_svc+0x58/0x138 [ 59.862353][ T4723] el0t_64_sync_handler+0x84/0xf0 [ 59.863094][ T4723] el0t_64_sync+0x18c/0x190 [ 59.863778][ T4723] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 59.865621][ T4723] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 59.982041][ T4726] loop4: detected capacity change from 0 to 32768 [ 59.983728][ T4726] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 59.984841][ T4726] CPU: 1 PID: 4726 Comm: syz.4.168 Not tainted syzkaller #0 [ 59.985837][ T4726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 59.987288][ T4726] Call trace: [ 59.987762][ T4726] dump_backtrace+0x1c8/0x1f4 [ 59.988382][ T4726] show_stack+0x2c/0x3c [ 59.988987][ T4726] __dump_stack+0x30/0x40 [ 59.989627][ T4726] dump_stack_lvl+0xf8/0x160 [ 59.990330][ T4726] dump_stack+0x1c/0x5c [ 59.990946][ T4726] sysfs_create_dir_ns+0x22c/0x24c [ 59.991718][ T4726] kobject_add_internal+0x5a8/0xb30 [ 59.992474][ T4726] kobject_init_and_add+0x118/0x17c [ 59.993245][ T4726] gfs2_sys_fs_add+0x1dc/0x3d8 [ 59.993939][ T4726] gfs2_fill_super+0xdec/0x19ec [ 59.994669][ T4726] get_tree_bdev+0x358/0x544 [ 59.995387][ T4726] gfs2_get_tree+0x54/0x1b4 [ 59.996029][ T4726] vfs_get_tree+0x90/0x274 [ 59.996704][ T4726] do_new_mount+0x228/0x810 [ 59.997356][ T4726] path_mount+0x5b4/0xe78 [ 59.997995][ T4726] __arm64_sys_mount+0x49c/0x584 [ 59.998703][ T4726] invoke_syscall+0x98/0x2bc [ 59.999358][ T4726] el0_svc_common+0x138/0x258 [ 60.000017][ T4726] do_el0_svc+0x58/0x13c [ 60.000625][ T4726] el0_svc+0x58/0x138 [ 60.001219][ T4726] el0t_64_sync_handler+0x84/0xf0 [ 60.001946][ T4726] el0t_64_sync+0x18c/0x190 [ 60.002672][ T4726] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 60.004528][ T4726] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 60.098780][ T4727] loop2: detected capacity change from 0 to 32768 [ 60.106237][ T4727] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 60.107391][ T4727] CPU: 0 PID: 4727 Comm: syz.2.169 Not tainted syzkaller #0 [ 60.108507][ T4727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 60.109995][ T4727] Call trace: [ 60.110481][ T4727] dump_backtrace+0x1c8/0x1f4 [ 60.111216][ T4727] show_stack+0x2c/0x3c [ 60.111835][ T4727] __dump_stack+0x30/0x40 [ 60.112457][ T4727] dump_stack_lvl+0xf8/0x160 [ 60.113189][ T4727] dump_stack+0x1c/0x5c [ 60.113799][ T4727] sysfs_create_dir_ns+0x22c/0x24c [ 60.114507][ T4727] kobject_add_internal+0x5a8/0xb30 [ 60.115222][ T4727] kobject_init_and_add+0x118/0x17c [ 60.115993][ T4727] gfs2_sys_fs_add+0x1dc/0x3d8 [ 60.116686][ T4727] gfs2_fill_super+0xdec/0x19ec [ 60.117371][ T4727] get_tree_bdev+0x358/0x544 [ 60.118046][ T4727] gfs2_get_tree+0x54/0x1b4 [ 60.118684][ T4727] vfs_get_tree+0x90/0x274 [ 60.119317][ T4727] do_new_mount+0x228/0x810 [ 60.119983][ T4727] path_mount+0x5b4/0xe78 [ 60.120673][ T4727] __arm64_sys_mount+0x49c/0x584 [ 60.121440][ T4727] invoke_syscall+0x98/0x2bc [ 60.122107][ T4727] el0_svc_common+0x138/0x258 [ 60.122792][ T4727] do_el0_svc+0x58/0x13c [ 60.123390][ T4727] el0_svc+0x58/0x138 [ 60.123956][ T4727] el0t_64_sync_handler+0x84/0xf0 [ 60.124705][ T4727] el0t_64_sync+0x18c/0x190 [ 60.125513][ T4727] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 60.127383][ T4727] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 60.224774][ T4346] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 60.230035][ T4347] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 60.359602][ T4730] loop2: detected capacity change from 0 to 32768 [ 60.362573][ T4732] loop3: detected capacity change from 0 to 32768 [ 60.370423][ T4732] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 60.371580][ T4732] CPU: 0 PID: 4732 Comm: syz.3.172 Not tainted syzkaller #0 [ 60.372683][ T4732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 60.374060][ T4732] Call trace: [ 60.374477][ T4732] dump_backtrace+0x1c8/0x1f4 [ 60.375148][ T4732] show_stack+0x2c/0x3c [ 60.375770][ T4732] __dump_stack+0x30/0x40 [ 60.376337][ T4732] dump_stack_lvl+0xf8/0x160 [ 60.376969][ T4732] dump_stack+0x1c/0x5c [ 60.377561][ T4732] sysfs_create_dir_ns+0x22c/0x24c [ 60.378275][ T4732] kobject_add_internal+0x5a8/0xb30 [ 60.379051][ T4732] kobject_init_and_add+0x118/0x17c [ 60.379886][ T4732] gfs2_sys_fs_add+0x1dc/0x3d8 [ 60.380575][ T4732] gfs2_fill_super+0xdec/0x19ec [ 60.381248][ T4732] get_tree_bdev+0x358/0x544 [ 60.381986][ T4732] gfs2_get_tree+0x54/0x1b4 [ 60.382671][ T4732] vfs_get_tree+0x90/0x274 [ 60.383364][ T4732] do_new_mount+0x228/0x810 [ 60.384015][ T4732] path_mount+0x5b4/0xe78 [ 60.384603][ T4732] __arm64_sys_mount+0x49c/0x584 [ 60.385365][ T4732] invoke_syscall+0x98/0x2bc [ 60.386012][ T4732] el0_svc_common+0x138/0x258 [ 60.386735][ T4732] do_el0_svc+0x58/0x13c [ 60.387422][ T4732] el0_svc+0x58/0x138 [ 60.388002][ T4732] el0t_64_sync_handler+0x84/0xf0 [ 60.388764][ T4732] el0t_64_sync+0x18c/0x190 [ 60.389527][ T4732] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 60.391392][ T4732] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 60.467407][ T4733] loop0: detected capacity change from 0 to 32768 [ 60.518794][ T4731] loop4: detected capacity change from 0 to 32768 [ 60.521132][ T4733] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 60.521687][ T4731] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 60.522243][ T4733] CPU: 1 PID: 4733 Comm: syz.0.171 Not tainted syzkaller #0 [ 60.524506][ T4733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 60.525938][ T4733] Call trace: [ 60.526432][ T4733] dump_backtrace+0x1c8/0x1f4 [ 60.527101][ T4733] show_stack+0x2c/0x3c [ 60.527706][ T4733] __dump_stack+0x30/0x40 [ 60.528352][ T4733] dump_stack_lvl+0xf8/0x160 [ 60.529004][ T4733] dump_stack+0x1c/0x5c [ 60.529620][ T4733] sysfs_create_dir_ns+0x22c/0x24c [ 60.530378][ T4733] kobject_add_internal+0x5a8/0xb30 [ 60.531134][ T4733] kobject_init_and_add+0x118/0x17c [ 60.531850][ T4733] gfs2_sys_fs_add+0x1dc/0x3d8 [ 60.532591][ T4733] gfs2_fill_super+0xdec/0x19ec [ 60.533332][ T4733] get_tree_bdev+0x358/0x544 [ 60.534030][ T4733] gfs2_get_tree+0x54/0x1b4 [ 60.534666][ T4733] vfs_get_tree+0x90/0x274 [ 60.535276][ T4733] do_new_mount+0x228/0x810 [ 60.535934][ T4733] path_mount+0x5b4/0xe78 [ 60.536531][ T4733] __arm64_sys_mount+0x49c/0x584 [ 60.539699][ T4733] invoke_syscall+0x98/0x2bc [ 60.540379][ T4733] el0_svc_common+0x138/0x258 [ 60.541087][ T4733] do_el0_svc+0x58/0x13c [ 60.541727][ T4733] el0_svc+0x58/0x138 [ 60.542327][ T4733] el0t_64_sync_handler+0x84/0xf0 [ 60.543098][ T4733] el0t_64_sync+0x18c/0x190 [ 60.543801][ T4731] CPU: 0 PID: 4731 Comm: syz.4.173 Not tainted syzkaller #0 [ 60.543887][ T4733] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 60.544807][ T4731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 60.546527][ T4733] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 60.547897][ T4731] Call trace: [ 60.549307][ T4731] dump_backtrace+0x1c8/0x1f4 [ 60.549719][ T4730] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 60.549950][ T4731] show_stack+0x2c/0x3c [ 60.551648][ T4731] __dump_stack+0x30/0x40 [ 60.552275][ T4731] dump_stack_lvl+0xf8/0x160 [ 60.553006][ T4731] dump_stack+0x1c/0x5c [ 60.553589][ T4731] sysfs_create_dir_ns+0x22c/0x24c [ 60.554363][ T4731] kobject_add_internal+0x5a8/0xb30 [ 60.555139][ T4731] kobject_init_and_add+0x118/0x17c [ 60.555876][ T4731] gfs2_sys_fs_add+0x1dc/0x3d8 [ 60.556569][ T4731] gfs2_fill_super+0xdec/0x19ec [ 60.557249][ T4731] get_tree_bdev+0x358/0x544 [ 60.557872][ T4731] gfs2_get_tree+0x54/0x1b4 [ 60.558510][ T4731] vfs_get_tree+0x90/0x274 [ 60.559152][ T4731] do_new_mount+0x228/0x810 [ 60.559802][ T4731] path_mount+0x5b4/0xe78 [ 60.560384][ T4731] __arm64_sys_mount+0x49c/0x584 [ 60.561041][ T4731] invoke_syscall+0x98/0x2bc [ 60.561712][ T4731] el0_svc_common+0x138/0x258 [ 60.562374][ T4731] do_el0_svc+0x58/0x13c [ 60.563077][ T4731] el0_svc+0x58/0x138 [ 60.563633][ T4731] el0t_64_sync_handler+0x84/0xf0 [ 60.564423][ T4731] el0t_64_sync+0x18c/0x190 [ 60.565088][ T4730] CPU: 1 PID: 4730 Comm: syz.2.174 Not tainted syzkaller #0 [ 60.565129][ T4731] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 60.566075][ T4730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 60.567853][ T4731] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 60.569284][ T4730] Call trace: [ 60.570649][ T4730] dump_backtrace+0x1c8/0x1f4 [ 60.571366][ T4730] show_stack+0x2c/0x3c [ 60.571973][ T4730] __dump_stack+0x30/0x40 [ 60.572604][ T4730] dump_stack_lvl+0xf8/0x160 [ 60.573273][ T4730] dump_stack+0x1c/0x5c [ 60.573904][ T4730] sysfs_create_dir_ns+0x22c/0x24c [ 60.574681][ T4730] kobject_add_internal+0x5a8/0xb30 [ 60.575434][ T4730] kobject_init_and_add+0x118/0x17c [ 60.576218][ T4730] gfs2_sys_fs_add+0x1dc/0x3d8 [ 60.577502][ T4730] gfs2_fill_super+0xdec/0x19ec [ 60.578157][ T4730] get_tree_bdev+0x358/0x544 [ 60.578805][ T4730] gfs2_get_tree+0x54/0x1b4 [ 60.579443][ T4730] vfs_get_tree+0x90/0x274 [ 60.580260][ T4730] do_new_mount+0x228/0x810 [ 60.580939][ T4730] path_mount+0x5b4/0xe78 [ 60.582106][ T4730] __arm64_sys_mount+0x49c/0x584 [ 60.582928][ T4730] invoke_syscall+0x98/0x2bc [ 60.583674][ T4730] el0_svc_common+0x138/0x258 [ 60.584384][ T4730] do_el0_svc+0x58/0x13c [ 60.585050][ T4730] el0_svc+0x58/0x138 [ 60.585653][ T4730] el0t_64_sync_handler+0x84/0xf0 [ 60.586393][ T4730] el0t_64_sync+0x18c/0x190 [ 60.587146][ T4730] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 60.589005][ T4730] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 60.696940][ T4734] loop3: detected capacity change from 0 to 32768 [ 60.766208][ T4734] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 60.767383][ T4734] CPU: 0 PID: 4734 Comm: syz.3.175 Not tainted syzkaller #0 [ 60.768477][ T4734] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 60.769941][ T4734] Call trace: [ 60.770417][ T4734] dump_backtrace+0x1c8/0x1f4 [ 60.771113][ T4734] show_stack+0x2c/0x3c [ 60.771730][ T4734] __dump_stack+0x30/0x40 [ 60.772363][ T4734] dump_stack_lvl+0xf8/0x160 [ 60.773054][ T4734] dump_stack+0x1c/0x5c [ 60.773648][ T4734] sysfs_create_dir_ns+0x22c/0x24c [ 60.774380][ T4734] kobject_add_internal+0x5a8/0xb30 [ 60.775114][ T4734] kobject_init_and_add+0x118/0x17c [ 60.775986][ T4734] gfs2_sys_fs_add+0x1dc/0x3d8 [ 60.776741][ T4734] gfs2_fill_super+0xdec/0x19ec [ 60.777489][ T4734] get_tree_bdev+0x358/0x544 [ 60.778225][ T4734] gfs2_get_tree+0x54/0x1b4 [ 60.778854][ T4734] vfs_get_tree+0x90/0x274 [ 60.779527][ T4734] do_new_mount+0x228/0x810 [ 60.780229][ T4734] path_mount+0x5b4/0xe78 [ 60.780880][ T4734] __arm64_sys_mount+0x49c/0x584 [ 60.781636][ T4734] invoke_syscall+0x98/0x2bc [ 60.782305][ T4734] el0_svc_common+0x138/0x258 [ 60.783006][ T4734] do_el0_svc+0x58/0x13c [ 60.783637][ T4734] el0_svc+0x58/0x138 [ 60.784196][ T4734] el0t_64_sync_handler+0x84/0xf0 [ 60.784853][ T4734] el0t_64_sync+0x18c/0x190 [ 60.786381][ T4734] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 60.788373][ T4734] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 61.030639][ T4347] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 61.099205][ T4739] loop4: detected capacity change from 0 to 32768 [ 61.131210][ T4739] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 61.132419][ T4739] CPU: 0 PID: 4739 Comm: syz.4.181 Not tainted syzkaller #0 [ 61.133525][ T4739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 61.135012][ T4739] Call trace: [ 61.135504][ T4739] dump_backtrace+0x1c8/0x1f4 [ 61.136205][ T4739] show_stack+0x2c/0x3c [ 61.136836][ T4739] __dump_stack+0x30/0x40 [ 61.137482][ T4739] dump_stack_lvl+0xf8/0x160 [ 61.138114][ T4739] dump_stack+0x1c/0x5c [ 61.138826][ T4739] sysfs_create_dir_ns+0x22c/0x24c [ 61.139557][ T4739] kobject_add_internal+0x5a8/0xb30 [ 61.140337][ T4739] kobject_init_and_add+0x118/0x17c [ 61.141060][ T4739] gfs2_sys_fs_add+0x1dc/0x3d8 [ 61.141762][ T4739] gfs2_fill_super+0xdec/0x19ec [ 61.142443][ T4739] get_tree_bdev+0x358/0x544 [ 61.143075][ T4739] gfs2_get_tree+0x54/0x1b4 [ 61.143767][ T4739] vfs_get_tree+0x90/0x274 [ 61.144411][ T4739] do_new_mount+0x228/0x810 [ 61.145053][ T4739] path_mount+0x5b4/0xe78 [ 61.145685][ T4739] __arm64_sys_mount+0x49c/0x584 [ 61.146371][ T4739] invoke_syscall+0x98/0x2bc [ 61.147018][ T4739] el0_svc_common+0x138/0x258 [ 61.147693][ T4739] do_el0_svc+0x58/0x13c [ 61.148283][ T4739] el0_svc+0x58/0x138 [ 61.148909][ T4739] el0t_64_sync_handler+0x84/0xf0 [ 61.149662][ T4739] el0t_64_sync+0x18c/0x190 [ 61.150477][ T4739] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 61.152421][ T4739] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 61.164346][ T4716] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 61.194001][ T4740] loop2: detected capacity change from 0 to 32768 [ 61.202471][ T4740] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 61.203496][ T4740] CPU: 1 PID: 4740 Comm: syz.2.182 Not tainted syzkaller #0 [ 61.204499][ T4740] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 61.205886][ T4740] Call trace: [ 61.206349][ T4740] dump_backtrace+0x1c8/0x1f4 [ 61.206963][ T4740] show_stack+0x2c/0x3c [ 61.207508][ T4740] __dump_stack+0x30/0x40 [ 61.208159][ T4740] dump_stack_lvl+0xf8/0x160 [ 61.208760][ T4740] dump_stack+0x1c/0x5c [ 61.209380][ T4740] sysfs_create_dir_ns+0x22c/0x24c [ 61.210193][ T4740] kobject_add_internal+0x5a8/0xb30 [ 61.210995][ T4740] kobject_init_and_add+0x118/0x17c [ 61.211790][ T4740] gfs2_sys_fs_add+0x1dc/0x3d8 [ 61.212496][ T4740] gfs2_fill_super+0xdec/0x19ec [ 61.213197][ T4740] get_tree_bdev+0x358/0x544 [ 61.213881][ T4740] gfs2_get_tree+0x54/0x1b4 [ 61.214524][ T4740] vfs_get_tree+0x90/0x274 [ 61.215110][ T4740] do_new_mount+0x228/0x810 [ 61.215705][ T4740] path_mount+0x5b4/0xe78 [ 61.216295][ T4740] __arm64_sys_mount+0x49c/0x584 [ 61.217012][ T4740] invoke_syscall+0x98/0x2bc [ 61.217693][ T4740] el0_svc_common+0x138/0x258 [ 61.218379][ T4740] do_el0_svc+0x58/0x13c [ 61.218992][ T4740] el0_svc+0x58/0x138 [ 61.219566][ T4740] el0t_64_sync_handler+0x84/0xf0 [ 61.220240][ T4740] el0t_64_sync+0x18c/0x190 [ 61.220848][ T4740] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 61.222756][ T4740] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 61.367714][ T4743] loop3: detected capacity change from 0 to 32768 [ 61.398074][ T4455] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 61.471625][ T4741] loop0: detected capacity change from 0 to 32768 [ 61.489290][ T4743] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 61.490604][ T4743] CPU: 0 PID: 4743 Comm: syz.3.183 Not tainted syzkaller #0 [ 61.491722][ T4743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 61.493247][ T4743] Call trace: [ 61.493778][ T4743] dump_backtrace+0x1c8/0x1f4 [ 61.494521][ T4743] show_stack+0x2c/0x3c [ 61.495163][ T4743] __dump_stack+0x30/0x40 [ 61.495817][ T4743] dump_stack_lvl+0xf8/0x160 [ 61.496456][ T4743] dump_stack+0x1c/0x5c [ 61.497070][ T4743] sysfs_create_dir_ns+0x22c/0x24c [ 61.497834][ T4743] kobject_add_internal+0x5a8/0xb30 [ 61.498544][ T4743] kobject_init_and_add+0x118/0x17c [ 61.499233][ T4743] gfs2_sys_fs_add+0x1dc/0x3d8 [ 61.499914][ T4743] gfs2_fill_super+0xdec/0x19ec [ 61.500639][ T4743] get_tree_bdev+0x358/0x544 [ 61.501302][ T4743] gfs2_get_tree+0x54/0x1b4 [ 61.501928][ T4743] vfs_get_tree+0x90/0x274 [ 61.502586][ T4743] do_new_mount+0x228/0x810 [ 61.503256][ T4743] path_mount+0x5b4/0xe78 [ 61.503877][ T4743] __arm64_sys_mount+0x49c/0x584 [ 61.504634][ T4743] invoke_syscall+0x98/0x2bc [ 61.505356][ T4743] el0_svc_common+0x138/0x258 [ 61.506123][ T4743] do_el0_svc+0x58/0x13c [ 61.506769][ T4743] el0_svc+0x58/0x138 [ 61.507355][ T4743] el0t_64_sync_handler+0x84/0xf0 [ 61.508020][ T4743] el0t_64_sync+0x18c/0x190 [ 61.508753][ T4743] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 61.510509][ T4743] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 61.514234][ T4741] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 61.515335][ T4741] CPU: 0 PID: 4741 Comm: syz.0.180 Not tainted syzkaller #0 [ 61.516410][ T4741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 61.517877][ T4741] Call trace: [ 61.518319][ T4741] dump_backtrace+0x1c8/0x1f4 [ 61.519017][ T4741] show_stack+0x2c/0x3c [ 61.519636][ T4741] __dump_stack+0x30/0x40 [ 61.520337][ T4741] dump_stack_lvl+0xf8/0x160 [ 61.521014][ T4741] dump_stack+0x1c/0x5c [ 61.521720][ T4741] sysfs_create_dir_ns+0x22c/0x24c [ 61.522444][ T4741] kobject_add_internal+0x5a8/0xb30 [ 61.523235][ T4741] kobject_init_and_add+0x118/0x17c [ 61.523962][ T4741] gfs2_sys_fs_add+0x1dc/0x3d8 [ 61.524690][ T4741] gfs2_fill_super+0xdec/0x19ec [ 61.525375][ T4741] get_tree_bdev+0x358/0x544 [ 61.526133][ T4741] gfs2_get_tree+0x54/0x1b4 [ 61.526841][ T4741] vfs_get_tree+0x90/0x274 [ 61.527533][ T4741] do_new_mount+0x228/0x810 [ 61.528223][ T4741] path_mount+0x5b4/0xe78 [ 61.528869][ T4741] __arm64_sys_mount+0x49c/0x584 [ 61.529651][ T4741] invoke_syscall+0x98/0x2bc [ 61.530318][ T4741] el0_svc_common+0x138/0x258 [ 61.530929][ T4741] do_el0_svc+0x58/0x13c [ 61.531571][ T4741] el0_svc+0x58/0x138 [ 61.532108][ T4741] el0t_64_sync_handler+0x84/0xf0 [ 61.532855][ T4741] el0t_64_sync+0x18c/0x190 [ 61.533530][ T4741] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 61.535364][ T4741] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 61.536771][ T4443] Bluetooth: hci0: command 0x0409 tx timeout [ 61.745384][ T4745] loop2: detected capacity change from 0 to 32768 [ 61.751936][ T4745] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 61.753011][ T4745] CPU: 0 PID: 4745 Comm: syz.2.186 Not tainted syzkaller #0 [ 61.754075][ T4745] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 61.755519][ T4745] Call trace: [ 61.756055][ T4745] dump_backtrace+0x1c8/0x1f4 [ 61.756769][ T4745] show_stack+0x2c/0x3c [ 61.757426][ T4745] __dump_stack+0x30/0x40 [ 61.758090][ T4745] dump_stack_lvl+0xf8/0x160 [ 61.758750][ T4745] dump_stack+0x1c/0x5c [ 61.759395][ T4745] sysfs_create_dir_ns+0x22c/0x24c [ 61.760183][ T4745] kobject_add_internal+0x5a8/0xb30 [ 61.760950][ T4745] kobject_init_and_add+0x118/0x17c [ 61.761731][ T4745] gfs2_sys_fs_add+0x1dc/0x3d8 [ 61.762507][ T4745] gfs2_fill_super+0xdec/0x19ec [ 61.763217][ T4745] get_tree_bdev+0x358/0x544 [ 61.763919][ T4745] gfs2_get_tree+0x54/0x1b4 [ 61.764593][ T4745] vfs_get_tree+0x90/0x274 [ 61.765306][ T4745] do_new_mount+0x228/0x810 [ 61.766001][ T4745] path_mount+0x5b4/0xe78 [ 61.766621][ T4745] __arm64_sys_mount+0x49c/0x584 [ 61.767335][ T4745] invoke_syscall+0x98/0x2bc [ 61.767987][ T4745] el0_svc_common+0x138/0x258 [ 61.768641][ T4745] do_el0_svc+0x58/0x13c [ 61.769291][ T4745] el0_svc+0x58/0x138 [ 61.769858][ T4745] el0t_64_sync_handler+0x84/0xf0 [ 61.770562][ T4745] el0t_64_sync+0x18c/0x190 [ 61.771332][ T4745] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 61.773193][ T4745] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 61.880060][ T4749] loop4: detected capacity change from 0 to 32768 [ 61.986605][ T4750] loop0: detected capacity change from 0 to 32768 [ 62.011721][ T4749] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 62.012882][ T4749] CPU: 0 PID: 4749 Comm: syz.4.188 Not tainted syzkaller #0 [ 62.013996][ T4749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 62.015440][ T4749] Call trace: [ 62.015918][ T4749] dump_backtrace+0x1c8/0x1f4 [ 62.016563][ T4749] show_stack+0x2c/0x3c [ 62.017114][ T4749] __dump_stack+0x30/0x40 [ 62.017561][ T4750] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 62.017757][ T4749] dump_stack_lvl+0xf8/0x160 [ 62.019558][ T4749] dump_stack+0x1c/0x5c [ 62.020174][ T4749] sysfs_create_dir_ns+0x22c/0x24c [ 62.020980][ T4749] kobject_add_internal+0x5a8/0xb30 [ 62.021722][ T4749] kobject_init_and_add+0x118/0x17c [ 62.022460][ T4749] gfs2_sys_fs_add+0x1dc/0x3d8 [ 62.023164][ T4749] gfs2_fill_super+0xdec/0x19ec [ 62.023838][ T4749] get_tree_bdev+0x358/0x544 [ 62.024524][ T4749] gfs2_get_tree+0x54/0x1b4 [ 62.025167][ T4749] vfs_get_tree+0x90/0x274 [ 62.025790][ T4749] do_new_mount+0x228/0x810 [ 62.026422][ T4749] path_mount+0x5b4/0xe78 [ 62.027096][ T4749] __arm64_sys_mount+0x49c/0x584 [ 62.027775][ T4749] invoke_syscall+0x98/0x2bc [ 62.028434][ T4749] el0_svc_common+0x138/0x258 [ 62.029100][ T4749] do_el0_svc+0x58/0x13c [ 62.029697][ T4749] el0_svc+0x58/0x138 [ 62.030300][ T4749] el0t_64_sync_handler+0x84/0xf0 [ 62.031070][ T4749] el0t_64_sync+0x18c/0x190 [ 62.031727][ T4750] CPU: 1 PID: 4750 Comm: syz.0.189 Not tainted syzkaller #0 [ 62.031844][ T4749] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 62.032781][ T4750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 62.034550][ T4749] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 62.035958][ T4750] Call trace: [ 62.037298][ T4750] dump_backtrace+0x1c8/0x1f4 [ 62.038090][ T4750] show_stack+0x2c/0x3c [ 62.038698][ T4750] __dump_stack+0x30/0x40 [ 62.039363][ T4750] dump_stack_lvl+0xf8/0x160 [ 62.040093][ T4750] dump_stack+0x1c/0x5c [ 62.040727][ T4750] sysfs_create_dir_ns+0x22c/0x24c [ 62.041510][ T4750] kobject_add_internal+0x5a8/0xb30 [ 62.042320][ T4750] kobject_init_and_add+0x118/0x17c [ 62.043125][ T4750] gfs2_sys_fs_add+0x1dc/0x3d8 [ 62.043812][ T4750] gfs2_fill_super+0xdec/0x19ec [ 62.044500][ T4750] get_tree_bdev+0x358/0x544 [ 62.045229][ T4750] gfs2_get_tree+0x54/0x1b4 [ 62.045958][ T4750] vfs_get_tree+0x90/0x274 [ 62.046590][ T4750] do_new_mount+0x228/0x810 [ 62.047254][ T4750] path_mount+0x5b4/0xe78 [ 62.047919][ T4750] __arm64_sys_mount+0x49c/0x584 [ 62.048647][ T4750] invoke_syscall+0x98/0x2bc [ 62.049314][ T4750] el0_svc_common+0x138/0x258 [ 62.050022][ T4750] do_el0_svc+0x58/0x13c [ 62.050654][ T4750] el0_svc+0x58/0x138 [ 62.051253][ T4750] el0t_64_sync_handler+0x84/0xf0 [ 62.052011][ T4750] el0t_64_sync+0x18c/0x190 [ 62.052739][ T4750] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 62.054621][ T4750] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 62.322019][ T4712] chnl_net:caif_netlink_parms(): no params data found [ 62.335025][ T4455] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 1970/01/01 00:01:02 executed programs: 188 [ 62.743138][ T4763] loop4: detected capacity change from 0 to 32768 [ 62.802356][ T4763] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 62.803466][ T4763] CPU: 0 PID: 4763 Comm: syz.4.201 Not tainted syzkaller #0 [ 62.804555][ T4763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 62.806039][ T4763] Call trace: [ 62.806511][ T4763] dump_backtrace+0x1c8/0x1f4 [ 62.807253][ T4763] show_stack+0x2c/0x3c [ 62.807867][ T4763] __dump_stack+0x30/0x40 [ 62.808565][ T4763] dump_stack_lvl+0xf8/0x160 [ 62.809237][ T4763] dump_stack+0x1c/0x5c [ 62.809819][ T4763] sysfs_create_dir_ns+0x22c/0x24c [ 62.810561][ T4763] kobject_add_internal+0x5a8/0xb30 [ 62.811351][ T4763] kobject_init_and_add+0x118/0x17c [ 62.812111][ T4763] gfs2_sys_fs_add+0x1dc/0x3d8 [ 62.812747][ T4763] gfs2_fill_super+0xdec/0x19ec [ 62.813456][ T4763] get_tree_bdev+0x358/0x544 [ 62.814144][ T4763] gfs2_get_tree+0x54/0x1b4 [ 62.814797][ T4763] vfs_get_tree+0x90/0x274 [ 62.815442][ T4763] do_new_mount+0x228/0x810 [ 62.816093][ T4763] path_mount+0x5b4/0xe78 [ 62.816709][ T4763] __arm64_sys_mount+0x49c/0x584 [ 62.817455][ T4763] invoke_syscall+0x98/0x2bc [ 62.818119][ T4763] el0_svc_common+0x138/0x258 [ 62.818823][ T4763] do_el0_svc+0x58/0x13c [ 62.819399][ T4763] el0_svc+0x58/0x138 [ 62.819955][ T4763] el0t_64_sync_handler+0x84/0xf0 [ 62.820711][ T4763] el0t_64_sync+0x18c/0x190 [ 62.821475][ T4763] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 62.823307][ T4763] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 63.001594][ T4712] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.003345][ T4712] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.010660][ T4712] device bridge_slave_0 entered promiscuous mode [ 63.013691][ T4712] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.014778][ T4712] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.021543][ T4712] device bridge_slave_1 entered promiscuous mode [ 63.036606][ T4766] loop4: detected capacity change from 0 to 32768 [ 63.036724][ T4712] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.039498][ T4766] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 63.040657][ T4766] CPU: 1 PID: 4766 Comm: syz.4.205 Not tainted syzkaller #0 [ 63.041750][ T4766] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 63.043087][ T4766] Call trace: [ 63.043570][ T4766] dump_backtrace+0x1c8/0x1f4 [ 63.044246][ T4766] show_stack+0x2c/0x3c [ 63.044931][ T4766] __dump_stack+0x30/0x40 [ 63.045555][ T4766] dump_stack_lvl+0xf8/0x160 [ 63.046233][ T4766] dump_stack+0x1c/0x5c [ 63.046917][ T4766] sysfs_create_dir_ns+0x22c/0x24c [ 63.047629][ T4766] kobject_add_internal+0x5a8/0xb30 [ 63.048410][ T4766] kobject_init_and_add+0x118/0x17c [ 63.048768][ T4712] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.049150][ T4766] gfs2_sys_fs_add+0x1dc/0x3d8 [ 63.051274][ T4766] gfs2_fill_super+0xdec/0x19ec [ 63.051988][ T4766] get_tree_bdev+0x358/0x544 [ 63.052689][ T4766] gfs2_get_tree+0x54/0x1b4 [ 63.053343][ T4766] vfs_get_tree+0x90/0x274 [ 63.054026][ T4766] do_new_mount+0x228/0x810 [ 63.054669][ T4766] path_mount+0x5b4/0xe78 [ 63.055271][ T4766] __arm64_sys_mount+0x49c/0x584 [ 63.055984][ T4766] invoke_syscall+0x98/0x2bc [ 63.056622][ T4766] el0_svc_common+0x138/0x258 [ 63.057348][ T4766] do_el0_svc+0x58/0x13c [ 63.057994][ T4766] el0_svc+0x58/0x138 [ 63.058580][ T4766] el0t_64_sync_handler+0x84/0xf0 [ 63.059311][ T4766] el0t_64_sync+0x18c/0x190 [ 63.060158][ T4766] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 63.062116][ T4766] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 63.072947][ T4712] team0: Port device team_slave_0 added [ 63.074897][ T4712] team0: Port device team_slave_1 added [ 63.082466][ T4712] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 63.083444][ T4712] 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. [ 63.087002][ T4712] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 63.089850][ T4712] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 63.091048][ T4712] 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. [ 63.094423][ T4712] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 63.165891][ T4767] loop3: detected capacity change from 0 to 32768 [ 63.173628][ T4767] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 63.174811][ T4767] CPU: 0 PID: 4767 Comm: syz.3.204 Not tainted syzkaller #0 [ 63.175858][ T4767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 63.177263][ T4767] Call trace: [ 63.177712][ T4767] dump_backtrace+0x1c8/0x1f4 [ 63.178336][ T4767] show_stack+0x2c/0x3c [ 63.178941][ T4767] __dump_stack+0x30/0x40 [ 63.179527][ T4767] dump_stack_lvl+0xf8/0x160 [ 63.180192][ T4767] dump_stack+0x1c/0x5c [ 63.180882][ T4767] sysfs_create_dir_ns+0x22c/0x24c [ 63.181610][ T4767] kobject_add_internal+0x5a8/0xb30 [ 63.182349][ T4767] kobject_init_and_add+0x118/0x17c [ 63.183149][ T4767] gfs2_sys_fs_add+0x1dc/0x3d8 [ 63.183794][ T4767] gfs2_fill_super+0xdec/0x19ec [ 63.184521][ T4767] get_tree_bdev+0x358/0x544 [ 63.185187][ T4767] gfs2_get_tree+0x54/0x1b4 [ 63.185872][ T4767] vfs_get_tree+0x90/0x274 [ 63.186531][ T4767] do_new_mount+0x228/0x810 [ 63.187207][ T4767] path_mount+0x5b4/0xe78 [ 63.187838][ T4767] __arm64_sys_mount+0x49c/0x584 [ 63.188495][ T4767] invoke_syscall+0x98/0x2bc [ 63.189227][ T4767] el0_svc_common+0x138/0x258 [ 63.189882][ T4767] do_el0_svc+0x58/0x13c [ 63.190474][ T4767] el0_svc+0x58/0x138 [ 63.191044][ T4767] el0t_64_sync_handler+0x84/0xf0 [ 63.191759][ T4767] el0t_64_sync+0x18c/0x190 [ 63.192466][ T4767] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 63.194461][ T4767] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 63.333667][ T4771] loop2: detected capacity change from 0 to 32768 [ 63.335300][ T4771] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 63.336404][ T4771] CPU: 0 PID: 4771 Comm: syz.2.207 Not tainted syzkaller #0 [ 63.337561][ T4771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 63.339053][ T4771] Call trace: [ 63.339553][ T4771] dump_backtrace+0x1c8/0x1f4 [ 63.340248][ T4771] show_stack+0x2c/0x3c [ 63.340849][ T4771] __dump_stack+0x30/0x40 [ 63.341469][ T4771] dump_stack_lvl+0xf8/0x160 [ 63.342154][ T4771] dump_stack+0x1c/0x5c [ 63.342738][ T4771] sysfs_create_dir_ns+0x22c/0x24c [ 63.343494][ T4771] kobject_add_internal+0x5a8/0xb30 [ 63.344259][ T4771] kobject_init_and_add+0x118/0x17c [ 63.344980][ T4771] gfs2_sys_fs_add+0x1dc/0x3d8 [ 63.345650][ T4771] gfs2_fill_super+0xdec/0x19ec [ 63.346340][ T4771] get_tree_bdev+0x358/0x544 [ 63.346988][ T4771] gfs2_get_tree+0x54/0x1b4 [ 63.347634][ T4771] vfs_get_tree+0x90/0x274 [ 63.348212][ T4771] do_new_mount+0x228/0x810 [ 63.348920][ T4771] path_mount+0x5b4/0xe78 [ 63.349515][ T4771] __arm64_sys_mount+0x49c/0x584 [ 63.350252][ T4771] invoke_syscall+0x98/0x2bc [ 63.350967][ T4771] el0_svc_common+0x138/0x258 [ 63.351601][ T4771] do_el0_svc+0x58/0x13c [ 63.352258][ T4771] el0_svc+0x58/0x138 [ 63.352855][ T4771] el0t_64_sync_handler+0x84/0xf0 [ 63.353524][ T4771] el0t_64_sync+0x18c/0x190 [ 63.354235][ T4771] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 63.355977][ T4771] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 63.421108][ T4712] device hsr_slave_0 entered promiscuous mode [ 63.424145][ T4455] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 63.429633][ T4716] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 63.504868][ T4772] loop0: detected capacity change from 0 to 32768 [ 63.515823][ T4772] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 63.516944][ T4772] CPU: 1 PID: 4772 Comm: syz.0.208 Not tainted syzkaller #0 [ 63.518061][ T4772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 63.519540][ T4772] Call trace: [ 63.520037][ T4772] dump_backtrace+0x1c8/0x1f4 [ 63.520733][ T4772] show_stack+0x2c/0x3c [ 63.521371][ T4772] __dump_stack+0x30/0x40 [ 63.522051][ T4772] dump_stack_lvl+0xf8/0x160 [ 63.522730][ T4772] dump_stack+0x1c/0x5c [ 63.523340][ T4772] sysfs_create_dir_ns+0x22c/0x24c [ 63.524057][ T4772] kobject_add_internal+0x5a8/0xb30 [ 63.524790][ T4772] kobject_init_and_add+0x118/0x17c [ 63.525551][ T4772] gfs2_sys_fs_add+0x1dc/0x3d8 [ 63.526214][ T4772] gfs2_fill_super+0xdec/0x19ec [ 63.526899][ T4772] get_tree_bdev+0x358/0x544 [ 63.527546][ T4772] gfs2_get_tree+0x54/0x1b4 [ 63.528202][ T4772] vfs_get_tree+0x90/0x274 [ 63.528819][ T4772] do_new_mount+0x228/0x810 [ 63.529471][ T4772] path_mount+0x5b4/0xe78 [ 63.530103][ T4772] __arm64_sys_mount+0x49c/0x584 [ 63.530805][ T4772] invoke_syscall+0x98/0x2bc [ 63.531448][ T4772] el0_svc_common+0x138/0x258 [ 63.532091][ T4772] do_el0_svc+0x58/0x13c [ 63.532687][ T4772] el0_svc+0x58/0x138 [ 63.533256][ T4772] el0t_64_sync_handler+0x84/0xf0 [ 63.533958][ T4772] el0t_64_sync+0x18c/0x190 [ 63.534645][ T4772] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 63.536438][ T4772] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 63.556859][ T4773] loop2: detected capacity change from 0 to 32768 [ 63.558434][ T4773] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 63.559636][ T4773] CPU: 0 PID: 4773 Comm: syz.2.209 Not tainted syzkaller #0 [ 63.560761][ T4773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 63.562265][ T4773] Call trace: [ 63.562731][ T4773] dump_backtrace+0x1c8/0x1f4 [ 63.563451][ T4773] show_stack+0x2c/0x3c [ 63.564015][ T4773] __dump_stack+0x30/0x40 [ 63.564680][ T4773] dump_stack_lvl+0xf8/0x160 [ 63.565307][ T4773] dump_stack+0x1c/0x5c [ 63.565913][ T4773] sysfs_create_dir_ns+0x22c/0x24c [ 63.566617][ T4773] kobject_add_internal+0x5a8/0xb30 [ 63.567346][ T4773] kobject_init_and_add+0x118/0x17c [ 63.568150][ T4773] gfs2_sys_fs_add+0x1dc/0x3d8 [ 63.568822][ T4773] gfs2_fill_super+0xdec/0x19ec [ 63.569514][ T4773] get_tree_bdev+0x358/0x544 [ 63.570235][ T4773] gfs2_get_tree+0x54/0x1b4 [ 63.570884][ T4773] vfs_get_tree+0x90/0x274 [ 63.571530][ T4773] do_new_mount+0x228/0x810 [ 63.572209][ T4773] path_mount+0x5b4/0xe78 [ 63.572841][ T4773] __arm64_sys_mount+0x49c/0x584 [ 63.573615][ T4773] invoke_syscall+0x98/0x2bc [ 63.574302][ T4773] el0_svc_common+0x138/0x258 [ 63.574985][ T4773] do_el0_svc+0x58/0x13c [ 63.575622][ T4773] el0_svc+0x58/0x138 [ 63.576215][ T4773] el0t_64_sync_handler+0x84/0xf0 [ 63.576924][ T4773] el0t_64_sync+0x18c/0x190 [ 63.577636][ T4773] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 63.579523][ T4773] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 63.685816][ T4774] loop3: detected capacity change from 0 to 32768 [ 63.691898][ T4775] loop4: detected capacity change from 0 to 32768 [ 63.693728][ T4452] Bluetooth: hci0: command 0x041b tx timeout [ 63.698068][ T4774] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 63.699061][ T4774] CPU: 1 PID: 4774 Comm: syz.3.210 Not tainted syzkaller #0 [ 63.700177][ T4774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 63.701662][ T4774] Call trace: [ 63.702149][ T4774] dump_backtrace+0x1c8/0x1f4 [ 63.702887][ T4774] show_stack+0x2c/0x3c [ 63.703484][ T4774] __dump_stack+0x30/0x40 [ 63.704160][ T4774] dump_stack_lvl+0xf8/0x160 [ 63.704824][ T4774] dump_stack+0x1c/0x5c [ 63.705429][ T4774] sysfs_create_dir_ns+0x22c/0x24c [ 63.706150][ T4774] kobject_add_internal+0x5a8/0xb30 [ 63.706855][ T4774] kobject_init_and_add+0x118/0x17c [ 63.707619][ T4774] gfs2_sys_fs_add+0x1dc/0x3d8 [ 63.708305][ T4774] gfs2_fill_super+0xdec/0x19ec [ 63.708967][ T4774] get_tree_bdev+0x358/0x544 [ 63.709600][ T4774] gfs2_get_tree+0x54/0x1b4 [ 63.710380][ T4774] vfs_get_tree+0x90/0x274 [ 63.711135][ T4774] do_new_mount+0x228/0x810 [ 63.711817][ T4774] path_mount+0x5b4/0xe78 [ 63.712490][ T4774] __arm64_sys_mount+0x49c/0x584 [ 63.713238][ T4774] invoke_syscall+0x98/0x2bc [ 63.713953][ T4774] el0_svc_common+0x138/0x258 [ 63.714652][ T4774] do_el0_svc+0x58/0x13c [ 63.715309][ T4774] el0_svc+0x58/0x138 [ 63.715902][ T4774] el0t_64_sync_handler+0x84/0xf0 [ 63.716604][ T4774] el0t_64_sync+0x18c/0x190 [ 63.717319][ T4774] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 63.717401][ T4775] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 63.719111][ T4774] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 63.720383][ T4775] CPU: 0 PID: 4775 Comm: syz.4.211 Not tainted syzkaller #0 [ 63.722368][ T4775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 63.723825][ T4775] Call trace: [ 63.724312][ T4775] dump_backtrace+0x1c8/0x1f4 [ 63.725065][ T4775] show_stack+0x2c/0x3c [ 63.725684][ T4775] __dump_stack+0x30/0x40 [ 63.726289][ T4775] dump_stack_lvl+0xf8/0x160 [ 63.726954][ T4775] dump_stack+0x1c/0x5c [ 63.727560][ T4775] sysfs_create_dir_ns+0x22c/0x24c [ 63.727882][ T4712] device hsr_slave_1 entered promiscuous mode [ 63.728294][ T4775] kobject_add_internal+0x5a8/0xb30 [ 63.728313][ T4775] kobject_init_and_add+0x118/0x17c [ 63.730596][ T4775] gfs2_sys_fs_add+0x1dc/0x3d8 [ 63.731302][ T4775] gfs2_fill_super+0xdec/0x19ec [ 63.732050][ T4775] get_tree_bdev+0x358/0x544 [ 63.732713][ T4775] gfs2_get_tree+0x54/0x1b4 [ 63.733345][ T4775] vfs_get_tree+0x90/0x274 [ 63.733977][ T4775] do_new_mount+0x228/0x810 [ 63.734635][ T4775] path_mount+0x5b4/0xe78 [ 63.735208][ T4775] __arm64_sys_mount+0x49c/0x584 [ 63.735948][ T4775] invoke_syscall+0x98/0x2bc [ 63.736620][ T4775] el0_svc_common+0x138/0x258 [ 63.737306][ T4775] do_el0_svc+0x58/0x13c [ 63.737920][ T4775] el0_svc+0x58/0x138 [ 63.738483][ T4775] el0t_64_sync_handler+0x84/0xf0 [ 63.739201][ T4775] el0t_64_sync+0x18c/0x190 [ 63.739971][ T4775] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 63.741703][ T4775] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 63.838727][ T4776] loop0: detected capacity change from 0 to 32768 [ 63.880584][ T4776] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 63.881758][ T4776] CPU: 1 PID: 4776 Comm: syz.0.212 Not tainted syzkaller #0 [ 63.882888][ T4776] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 63.884300][ T4776] Call trace: [ 63.884809][ T4776] dump_backtrace+0x1c8/0x1f4 [ 63.885535][ T4776] show_stack+0x2c/0x3c [ 63.886173][ T4776] __dump_stack+0x30/0x40 [ 63.886825][ T4776] dump_stack_lvl+0xf8/0x160 [ 63.887488][ T4776] dump_stack+0x1c/0x5c [ 63.888142][ T4776] sysfs_create_dir_ns+0x22c/0x24c [ 63.888963][ T4776] kobject_add_internal+0x5a8/0xb30 [ 63.889797][ T4776] kobject_init_and_add+0x118/0x17c [ 63.890627][ T4776] gfs2_sys_fs_add+0x1dc/0x3d8 [ 63.891388][ T4776] gfs2_fill_super+0xdec/0x19ec [ 63.892139][ T4776] get_tree_bdev+0x358/0x544 [ 63.892815][ T4776] gfs2_get_tree+0x54/0x1b4 [ 63.893482][ T4776] vfs_get_tree+0x90/0x274 [ 63.894161][ T4776] do_new_mount+0x228/0x810 [ 63.894867][ T4776] path_mount+0x5b4/0xe78 [ 63.895486][ T4776] __arm64_sys_mount+0x49c/0x584 [ 63.896258][ T4776] invoke_syscall+0x98/0x2bc [ 63.897025][ T4776] el0_svc_common+0x138/0x258 [ 63.897733][ T4776] do_el0_svc+0x58/0x13c [ 63.898399][ T4776] el0_svc+0x58/0x138 [ 63.899026][ T4776] el0t_64_sync_handler+0x84/0xf0 [ 63.899745][ T4776] el0t_64_sync+0x18c/0x190 [ 63.900491][ T4776] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 63.902492][ T4776] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 63.912465][ T4777] loop2: detected capacity change from 0 to 32768 [ 63.946826][ T4777] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 63.947992][ T4777] CPU: 0 PID: 4777 Comm: syz.2.213 Not tainted syzkaller #0 [ 63.949092][ T4777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 63.950558][ T4777] Call trace: [ 63.951015][ T4777] dump_backtrace+0x1c8/0x1f4 [ 63.951730][ T4777] show_stack+0x2c/0x3c [ 63.952332][ T4777] __dump_stack+0x30/0x40 [ 63.952963][ T4777] dump_stack_lvl+0xf8/0x160 [ 63.953650][ T4777] dump_stack+0x1c/0x5c [ 63.954316][ T4777] sysfs_create_dir_ns+0x22c/0x24c [ 63.955107][ T4777] kobject_add_internal+0x5a8/0xb30 [ 63.955927][ T4777] kobject_init_and_add+0x118/0x17c [ 63.956747][ T4777] gfs2_sys_fs_add+0x1dc/0x3d8 [ 63.957486][ T4777] gfs2_fill_super+0xdec/0x19ec [ 63.958218][ T4777] get_tree_bdev+0x358/0x544 [ 63.958982][ T4777] gfs2_get_tree+0x54/0x1b4 [ 63.959744][ T4777] vfs_get_tree+0x90/0x274 [ 63.960427][ T4777] do_new_mount+0x228/0x810 [ 63.961071][ T4777] path_mount+0x5b4/0xe78 [ 63.961739][ T4777] __arm64_sys_mount+0x49c/0x584 [ 63.962541][ T4777] invoke_syscall+0x98/0x2bc [ 63.963207][ T4777] el0_svc_common+0x138/0x258 [ 63.963932][ T4777] do_el0_svc+0x58/0x13c [ 63.964564][ T4777] el0_svc+0x58/0x138 [ 63.965210][ T4777] el0t_64_sync_handler+0x84/0xf0 [ 63.965939][ T4777] el0t_64_sync+0x18c/0x190 [ 63.966664][ T4777] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 63.968563][ T4777] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 64.142614][ T4780] loop3: detected capacity change from 0 to 32768 [ 64.185525][ T4780] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 64.186796][ T4780] CPU: 0 PID: 4780 Comm: syz.3.215 Not tainted syzkaller #0 [ 64.187906][ T4780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 64.188030][ T4779] loop4: detected capacity change from 0 to 32768 [ 64.189358][ T4780] Call trace: [ 64.190915][ T4780] dump_backtrace+0x1c8/0x1f4 [ 64.191587][ T4780] show_stack+0x2c/0x3c [ 64.192162][ T4780] __dump_stack+0x30/0x40 [ 64.192839][ T4780] dump_stack_lvl+0xf8/0x160 [ 64.193543][ T4780] dump_stack+0x1c/0x5c [ 64.194185][ T4780] sysfs_create_dir_ns+0x22c/0x24c [ 64.194960][ T4780] kobject_add_internal+0x5a8/0xb30 [ 64.195749][ T4780] kobject_init_and_add+0x118/0x17c [ 64.196510][ T4780] gfs2_sys_fs_add+0x1dc/0x3d8 [ 64.197193][ T4780] gfs2_fill_super+0xdec/0x19ec [ 64.197893][ T4780] get_tree_bdev+0x358/0x544 [ 64.198642][ T4780] gfs2_get_tree+0x54/0x1b4 [ 64.199333][ T4780] vfs_get_tree+0x90/0x274 [ 64.200015][ T4780] do_new_mount+0x228/0x810 [ 64.200679][ T4780] path_mount+0x5b4/0xe78 [ 64.201316][ T4780] __arm64_sys_mount+0x49c/0x584 [ 64.202104][ T4780] invoke_syscall+0x98/0x2bc [ 64.202830][ T4780] el0_svc_common+0x138/0x258 [ 64.203507][ T4780] do_el0_svc+0x58/0x13c [ 64.204172][ T4780] el0_svc+0x58/0x138 [ 64.204741][ T4780] el0t_64_sync_handler+0x84/0xf0 [ 64.205514][ T4780] el0t_64_sync+0x18c/0x190 [ 64.206274][ T4780] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 64.208091][ T4780] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 64.242042][ T4455] blk_print_req_error: 3 callbacks suppressed [ 64.242054][ T4455] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 64.293425][ T4779] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 64.294812][ T4779] CPU: 1 PID: 4779 Comm: syz.4.216 Not tainted syzkaller #0 [ 64.295895][ T4779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 64.297396][ T4779] Call trace: [ 64.297837][ T4779] dump_backtrace+0x1c8/0x1f4 [ 64.298595][ T4779] show_stack+0x2c/0x3c [ 64.299247][ T4779] __dump_stack+0x30/0x40 [ 64.299891][ T4779] dump_stack_lvl+0xf8/0x160 [ 64.300590][ T4779] dump_stack+0x1c/0x5c [ 64.301194][ T4779] sysfs_create_dir_ns+0x22c/0x24c [ 64.301979][ T4779] kobject_add_internal+0x5a8/0xb30 [ 64.302755][ T4779] kobject_init_and_add+0x118/0x17c [ 64.303554][ T4779] gfs2_sys_fs_add+0x1dc/0x3d8 [ 64.304257][ T4779] gfs2_fill_super+0xdec/0x19ec [ 64.304950][ T4779] get_tree_bdev+0x358/0x544 [ 64.305663][ T4779] gfs2_get_tree+0x54/0x1b4 [ 64.306329][ T4779] vfs_get_tree+0x90/0x274 [ 64.307005][ T4779] do_new_mount+0x228/0x810 [ 64.307679][ T4779] path_mount+0x5b4/0xe78 [ 64.308343][ T4779] __arm64_sys_mount+0x49c/0x584 [ 64.309146][ T4779] invoke_syscall+0x98/0x2bc [ 64.309881][ T4779] el0_svc_common+0x138/0x258 [ 64.310574][ T4779] do_el0_svc+0x58/0x13c [ 64.311194][ T4779] el0_svc+0x58/0x138 [ 64.311833][ T4779] el0t_64_sync_handler+0x84/0xf0 [ 64.312560][ T4779] el0t_64_sync+0x18c/0x190 [ 64.313324][ T4779] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 64.315237][ T4779] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 64.507060][ T2060] ieee802154 phy0 wpan0: encryption failed: -22 [ 64.508118][ T2060] ieee802154 phy1 wpan1: encryption failed: -22 [ 64.510575][ T4783] loop2: detected capacity change from 0 to 32768 [ 64.568906][ T4785] loop4: detected capacity change from 0 to 32768 [ 64.571114][ T24] cfg80211: failed to load regulatory.db [ 64.581299][ T4783] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 64.582543][ T4783] CPU: 1 PID: 4783 Comm: syz.2.218 Not tainted syzkaller #0 [ 64.583580][ T4783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 64.584967][ T4783] Call trace: [ 64.585444][ T4783] dump_backtrace+0x1c8/0x1f4 [ 64.586130][ T4783] show_stack+0x2c/0x3c [ 64.586715][ T4783] __dump_stack+0x30/0x40 [ 64.587354][ T4783] dump_stack_lvl+0xf8/0x160 [ 64.588047][ T4783] dump_stack+0x1c/0x5c [ 64.588642][ T4783] sysfs_create_dir_ns+0x22c/0x24c [ 64.589355][ T4783] kobject_add_internal+0x5a8/0xb30 [ 64.590130][ T4783] kobject_init_and_add+0x118/0x17c [ 64.590890][ T4783] gfs2_sys_fs_add+0x1dc/0x3d8 [ 64.591671][ T4783] gfs2_fill_super+0xdec/0x19ec [ 64.592415][ T4783] get_tree_bdev+0x358/0x544 [ 64.593115][ T4783] gfs2_get_tree+0x54/0x1b4 [ 64.593802][ T4783] vfs_get_tree+0x90/0x274 [ 64.594439][ T4783] do_new_mount+0x228/0x810 [ 64.595144][ T4783] path_mount+0x5b4/0xe78 [ 64.595822][ T4783] __arm64_sys_mount+0x49c/0x584 [ 64.596527][ T4783] invoke_syscall+0x98/0x2bc [ 64.597195][ T4783] el0_svc_common+0x138/0x258 [ 64.597897][ T4783] do_el0_svc+0x58/0x13c [ 64.598531][ T4783] el0_svc+0x58/0x138 [ 64.599134][ T4783] el0t_64_sync_handler+0x84/0xf0 [ 64.599902][ T4783] el0t_64_sync+0x18c/0x190 [ 64.600687][ T4783] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 64.602530][ T4783] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 64.773738][ T4785] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 64.774992][ T4785] CPU: 1 PID: 4785 Comm: syz.4.221 Not tainted syzkaller #0 [ 64.776052][ T4785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 64.777462][ T4785] Call trace: [ 64.777960][ T4785] dump_backtrace+0x1c8/0x1f4 [ 64.778583][ T4785] show_stack+0x2c/0x3c [ 64.779230][ T4785] __dump_stack+0x30/0x40 [ 64.779924][ T4785] dump_stack_lvl+0xf8/0x160 [ 64.780668][ T4785] dump_stack+0x1c/0x5c [ 64.781301][ T4785] sysfs_create_dir_ns+0x22c/0x24c [ 64.782111][ T4785] kobject_add_internal+0x5a8/0xb30 [ 64.782938][ T4785] kobject_init_and_add+0x118/0x17c [ 64.783711][ T4785] gfs2_sys_fs_add+0x1dc/0x3d8 [ 64.784451][ T4785] gfs2_fill_super+0xdec/0x19ec [ 64.785238][ T4785] get_tree_bdev+0x358/0x544 [ 64.786028][ T4785] gfs2_get_tree+0x54/0x1b4 [ 64.786777][ T4785] vfs_get_tree+0x90/0x274 [ 64.787473][ T4785] do_new_mount+0x228/0x810 [ 64.788145][ T4785] path_mount+0x5b4/0xe78 [ 64.788794][ T4785] __arm64_sys_mount+0x49c/0x584 [ 64.789545][ T4785] invoke_syscall+0x98/0x2bc [ 64.790236][ T4785] el0_svc_common+0x138/0x258 [ 64.790955][ T4785] do_el0_svc+0x58/0x13c [ 64.791632][ T4785] el0_svc+0x58/0x138 [ 64.792238][ T4785] el0t_64_sync_handler+0x84/0xf0 [ 64.792953][ T4785] el0t_64_sync+0x18c/0x190 [ 64.793677][ T4785] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 64.795654][ T4785] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 64.935519][ T4712] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 65.618612][ T4712] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 65.772523][ T4443] Bluetooth: hci0: command 0x040f tx timeout [ 66.114607][ T4808] loop2: detected capacity change from 0 to 32768 [ 66.117483][ T4808] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 66.118605][ T4808] CPU: 0 PID: 4808 Comm: syz.2.243 Not tainted syzkaller #0 [ 66.119741][ T4808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 66.121327][ T4808] Call trace: [ 66.121854][ T4808] dump_backtrace+0x1c8/0x1f4 [ 66.122543][ T4808] show_stack+0x2c/0x3c [ 66.123136][ T4808] __dump_stack+0x30/0x40 [ 66.123807][ T4808] dump_stack_lvl+0xf8/0x160 [ 66.124480][ T4808] dump_stack+0x1c/0x5c [ 66.125109][ T4808] sysfs_create_dir_ns+0x22c/0x24c [ 66.125932][ T4808] kobject_add_internal+0x5a8/0xb30 [ 66.126712][ T4808] kobject_init_and_add+0x118/0x17c [ 66.127481][ T4808] gfs2_sys_fs_add+0x1dc/0x3d8 [ 66.128164][ T4808] gfs2_fill_super+0xdec/0x19ec [ 66.128913][ T4808] get_tree_bdev+0x358/0x544 [ 66.129542][ T4808] gfs2_get_tree+0x54/0x1b4 [ 66.130214][ T4808] vfs_get_tree+0x90/0x274 [ 66.130808][ T4808] do_new_mount+0x228/0x810 [ 66.131522][ T4808] path_mount+0x5b4/0xe78 [ 66.132145][ T4808] __arm64_sys_mount+0x49c/0x584 [ 66.132822][ T4808] invoke_syscall+0x98/0x2bc [ 66.133497][ T4808] el0_svc_common+0x138/0x258 [ 66.134178][ T4808] do_el0_svc+0x58/0x13c [ 66.134846][ T4808] el0_svc+0x58/0x138 [ 66.135416][ T4808] el0t_64_sync_handler+0x84/0xf0 [ 66.136093][ T4808] el0t_64_sync+0x18c/0x190 [ 66.136813][ T4808] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 66.138562][ T4808] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 66.338573][ T4811] loop0: detected capacity change from 0 to 32768 [ 66.345118][ T4811] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 66.346311][ T4811] CPU: 1 PID: 4811 Comm: syz.0.244 Not tainted syzkaller #0 [ 66.347416][ T4811] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 66.348815][ T4811] Call trace: [ 66.349290][ T4811] dump_backtrace+0x1c8/0x1f4 [ 66.350005][ T4811] show_stack+0x2c/0x3c [ 66.350621][ T4811] __dump_stack+0x30/0x40 [ 66.351217][ T4811] dump_stack_lvl+0xf8/0x160 [ 66.351875][ T4811] dump_stack+0x1c/0x5c [ 66.352504][ T4811] sysfs_create_dir_ns+0x22c/0x24c [ 66.353251][ T4811] kobject_add_internal+0x5a8/0xb30 [ 66.353977][ T4811] kobject_init_and_add+0x118/0x17c [ 66.354708][ T4811] gfs2_sys_fs_add+0x1dc/0x3d8 [ 66.355424][ T4811] gfs2_fill_super+0xdec/0x19ec [ 66.356096][ T4811] get_tree_bdev+0x358/0x544 [ 66.356750][ T4811] gfs2_get_tree+0x54/0x1b4 [ 66.357406][ T4811] vfs_get_tree+0x90/0x274 [ 66.358018][ T4811] do_new_mount+0x228/0x810 [ 66.358645][ T4811] path_mount+0x5b4/0xe78 [ 66.359278][ T4811] __arm64_sys_mount+0x49c/0x584 [ 66.359958][ T4811] invoke_syscall+0x98/0x2bc [ 66.360586][ T4811] el0_svc_common+0x138/0x258 [ 66.361288][ T4811] do_el0_svc+0x58/0x13c [ 66.361971][ T4811] el0_svc+0x58/0x138 [ 66.362553][ T4811] el0t_64_sync_handler+0x84/0xf0 [ 66.363254][ T4811] el0t_64_sync+0x18c/0x190 [ 66.363970][ T4811] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 66.365736][ T4811] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 66.383371][ T4712] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 66.583315][ T4813] loop3: detected capacity change from 0 to 32768 [ 66.585297][ T4814] loop0: detected capacity change from 0 to 32768 [ 66.585341][ T4813] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 66.587393][ T4813] CPU: 0 PID: 4813 Comm: syz.3.250 Not tainted syzkaller #0 [ 66.588404][ T4813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 66.589825][ T4813] Call trace: [ 66.590340][ T4813] dump_backtrace+0x1c8/0x1f4 [ 66.591014][ T4813] show_stack+0x2c/0x3c [ 66.591632][ T4813] __dump_stack+0x30/0x40 [ 66.592253][ T4813] dump_stack_lvl+0xf8/0x160 [ 66.592929][ T4813] dump_stack+0x1c/0x5c [ 66.593555][ T4813] sysfs_create_dir_ns+0x22c/0x24c [ 66.594246][ T4813] kobject_add_internal+0x5a8/0xb30 [ 66.595020][ T4813] kobject_init_and_add+0x118/0x17c [ 66.595757][ T4813] gfs2_sys_fs_add+0x1dc/0x3d8 [ 66.596422][ T4813] gfs2_fill_super+0xdec/0x19ec [ 66.597109][ T4813] get_tree_bdev+0x358/0x544 [ 66.597795][ T4813] gfs2_get_tree+0x54/0x1b4 [ 66.598446][ T4813] vfs_get_tree+0x90/0x274 [ 66.599053][ T4813] do_new_mount+0x228/0x810 [ 66.599728][ T4813] path_mount+0x5b4/0xe78 [ 66.600324][ T4813] __arm64_sys_mount+0x49c/0x584 [ 66.601128][ T4813] invoke_syscall+0x98/0x2bc [ 66.601780][ T4813] el0_svc_common+0x138/0x258 [ 66.602512][ T4813] do_el0_svc+0x58/0x13c [ 66.603187][ T4813] el0_svc+0x58/0x138 [ 66.603787][ T4813] el0t_64_sync_handler+0x84/0xf0 [ 66.604511][ T4813] el0t_64_sync+0x18c/0x190 [ 66.605163][ T4813] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 66.607021][ T4813] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 66.649005][ T4787] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 66.660036][ T4814] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 66.661253][ T4814] CPU: 0 PID: 4814 Comm: syz.0.248 Not tainted syzkaller #0 [ 66.662335][ T4814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 66.663876][ T4814] Call trace: [ 66.664367][ T4814] dump_backtrace+0x1c8/0x1f4 [ 66.665068][ T4814] show_stack+0x2c/0x3c [ 66.665682][ T4814] __dump_stack+0x30/0x40 [ 66.666283][ T4814] dump_stack_lvl+0xf8/0x160 [ 66.666929][ T4814] dump_stack+0x1c/0x5c [ 66.667540][ T4814] sysfs_create_dir_ns+0x22c/0x24c [ 66.668300][ T4814] kobject_add_internal+0x5a8/0xb30 [ 66.669059][ T4814] kobject_init_and_add+0x118/0x17c [ 66.669833][ T4814] gfs2_sys_fs_add+0x1dc/0x3d8 [ 66.670516][ T4814] gfs2_fill_super+0xdec/0x19ec [ 66.671194][ T4814] get_tree_bdev+0x358/0x544 [ 66.671893][ T4814] gfs2_get_tree+0x54/0x1b4 [ 66.672543][ T4814] vfs_get_tree+0x90/0x274 [ 66.673237][ T4814] do_new_mount+0x228/0x810 [ 66.673850][ T4814] path_mount+0x5b4/0xe78 [ 66.674455][ T4814] __arm64_sys_mount+0x49c/0x584 [ 66.675165][ T4814] invoke_syscall+0x98/0x2bc [ 66.675831][ T4814] el0_svc_common+0x138/0x258 [ 66.676523][ T4814] do_el0_svc+0x58/0x13c [ 66.677137][ T4814] el0_svc+0x58/0x138 [ 66.677744][ T4814] el0t_64_sync_handler+0x84/0xf0 [ 66.678469][ T4814] el0t_64_sync+0x18c/0x190 [ 66.679155][ T4814] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 66.680888][ T4814] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 66.818963][ T4818] loop3: detected capacity change from 0 to 32768 [ 66.825879][ T4712] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 66.842753][ T4816] loop2: detected capacity change from 0 to 32768 [ 66.857203][ T4818] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 66.858344][ T4818] CPU: 1 PID: 4818 Comm: syz.3.253 Not tainted syzkaller #0 [ 66.859530][ T4818] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 66.861131][ T4818] Call trace: [ 66.861619][ T4818] dump_backtrace+0x1c8/0x1f4 [ 66.862359][ T4818] show_stack+0x2c/0x3c [ 66.862986][ T4818] __dump_stack+0x30/0x40 [ 66.863633][ T4818] dump_stack_lvl+0xf8/0x160 [ 66.864287][ T4818] dump_stack+0x1c/0x5c [ 66.864906][ T4818] sysfs_create_dir_ns+0x22c/0x24c [ 66.865653][ T4818] kobject_add_internal+0x5a8/0xb30 [ 66.866437][ T4818] kobject_init_and_add+0x118/0x17c [ 66.867195][ T4818] gfs2_sys_fs_add+0x1dc/0x3d8 [ 66.867880][ T4818] gfs2_fill_super+0xdec/0x19ec [ 66.868559][ T4818] get_tree_bdev+0x358/0x544 [ 66.869186][ T4818] gfs2_get_tree+0x54/0x1b4 [ 66.869804][ T4818] vfs_get_tree+0x90/0x274 [ 66.870384][ T4818] do_new_mount+0x228/0x810 [ 66.871027][ T4818] path_mount+0x5b4/0xe78 [ 66.871638][ T4818] __arm64_sys_mount+0x49c/0x584 [ 66.872355][ T4818] invoke_syscall+0x98/0x2bc [ 66.873028][ T4818] el0_svc_common+0x138/0x258 [ 66.873770][ T4818] do_el0_svc+0x58/0x13c [ 66.874410][ T4818] el0_svc+0x58/0x138 [ 66.875033][ T4818] el0t_64_sync_handler+0x84/0xf0 [ 66.875798][ T4818] el0t_64_sync+0x18c/0x190 [ 66.876523][ T4818] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 66.878461][ T4818] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 66.879872][ T4816] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 66.881057][ T4816] CPU: 1 PID: 4816 Comm: syz.2.249 Not tainted syzkaller #0 [ 66.882226][ T4816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 66.883728][ T4816] Call trace: [ 66.884190][ T4816] dump_backtrace+0x1c8/0x1f4 [ 66.884798][ T4816] show_stack+0x2c/0x3c [ 66.885383][ T4816] __dump_stack+0x30/0x40 [ 66.886028][ T4816] dump_stack_lvl+0xf8/0x160 [ 66.886651][ T4816] dump_stack+0x1c/0x5c [ 66.887230][ T4816] sysfs_create_dir_ns+0x22c/0x24c [ 66.887918][ T4816] kobject_add_internal+0x5a8/0xb30 [ 66.888670][ T4816] kobject_init_and_add+0x118/0x17c [ 66.889498][ T4816] gfs2_sys_fs_add+0x1dc/0x3d8 [ 66.890356][ T4816] gfs2_fill_super+0xdec/0x19ec [ 66.891144][ T4816] get_tree_bdev+0x358/0x544 [ 66.891793][ T4816] gfs2_get_tree+0x54/0x1b4 [ 66.892480][ T4816] vfs_get_tree+0x90/0x274 [ 66.893154][ T4816] do_new_mount+0x228/0x810 [ 66.893854][ T4816] path_mount+0x5b4/0xe78 [ 66.894515][ T4816] __arm64_sys_mount+0x49c/0x584 [ 66.895253][ T4816] invoke_syscall+0x98/0x2bc [ 66.895888][ T4816] el0_svc_common+0x138/0x258 [ 66.896600][ T4816] do_el0_svc+0x58/0x13c [ 66.897255][ T4816] el0_svc+0x58/0x138 [ 66.897844][ T4816] el0t_64_sync_handler+0x84/0xf0 [ 66.898609][ T4816] el0t_64_sync+0x18c/0x190 [ 66.899351][ T4816] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 66.901339][ T4816] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 66.946580][ T4817] loop0: detected capacity change from 0 to 32768 [ 67.048398][ T4817] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 67.049512][ T4817] CPU: 1 PID: 4817 Comm: syz.0.252 Not tainted syzkaller #0 [ 67.050578][ T4817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 67.052041][ T4817] Call trace: [ 67.052566][ T4817] dump_backtrace+0x1c8/0x1f4 [ 67.053235][ T4817] show_stack+0x2c/0x3c [ 67.053938][ T4817] __dump_stack+0x30/0x40 [ 67.054595][ T4817] dump_stack_lvl+0xf8/0x160 [ 67.055247][ T4817] dump_stack+0x1c/0x5c [ 67.055880][ T4817] sysfs_create_dir_ns+0x22c/0x24c [ 67.056673][ T4817] kobject_add_internal+0x5a8/0xb30 [ 67.057456][ T4817] kobject_init_and_add+0x118/0x17c [ 67.058179][ T4817] gfs2_sys_fs_add+0x1dc/0x3d8 [ 67.058901][ T4817] gfs2_fill_super+0xdec/0x19ec [ 67.059601][ T4817] get_tree_bdev+0x358/0x544 [ 67.060276][ T4817] gfs2_get_tree+0x54/0x1b4 [ 67.060974][ T4817] vfs_get_tree+0x90/0x274 [ 67.061654][ T4817] do_new_mount+0x228/0x810 [ 67.062357][ T4817] path_mount+0x5b4/0xe78 [ 67.062995][ T4817] __arm64_sys_mount+0x49c/0x584 [ 67.063712][ T4817] invoke_syscall+0x98/0x2bc [ 67.064358][ T4817] el0_svc_common+0x138/0x258 [ 67.065028][ T4817] do_el0_svc+0x58/0x13c [ 67.065642][ T4817] el0_svc+0x58/0x138 [ 67.066295][ T4817] el0t_64_sync_handler+0x84/0xf0 [ 67.067079][ T4817] el0t_64_sync+0x18c/0x190 [ 67.067845][ T4817] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 67.069726][ T4817] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:01:07 executed programs: 252 [ 67.598282][ T4827] loop4: detected capacity change from 0 to 32768 [ 67.632576][ T4827] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 67.633703][ T4827] CPU: 1 PID: 4827 Comm: syz.4.262 Not tainted syzkaller #0 [ 67.634788][ T4827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 67.636236][ T4827] Call trace: [ 67.636751][ T4827] dump_backtrace+0x1c8/0x1f4 [ 67.637424][ T4827] show_stack+0x2c/0x3c [ 67.638040][ T4827] __dump_stack+0x30/0x40 [ 67.638634][ T4827] dump_stack_lvl+0xf8/0x160 [ 67.639304][ T4827] dump_stack+0x1c/0x5c [ 67.639964][ T4827] sysfs_create_dir_ns+0x22c/0x24c [ 67.640693][ T4827] kobject_add_internal+0x5a8/0xb30 [ 67.641438][ T4827] kobject_init_and_add+0x118/0x17c [ 67.642155][ T4827] gfs2_sys_fs_add+0x1dc/0x3d8 [ 67.642781][ T4827] gfs2_fill_super+0xdec/0x19ec [ 67.643481][ T4827] get_tree_bdev+0x358/0x544 [ 67.644184][ T4827] gfs2_get_tree+0x54/0x1b4 [ 67.644905][ T4827] vfs_get_tree+0x90/0x274 [ 67.645622][ T4827] do_new_mount+0x228/0x810 [ 67.646285][ T4827] path_mount+0x5b4/0xe78 [ 67.646976][ T4827] __arm64_sys_mount+0x49c/0x584 [ 67.647715][ T4827] invoke_syscall+0x98/0x2bc [ 67.648399][ T4827] el0_svc_common+0x138/0x258 [ 67.648543][ T4829] loop2: detected capacity change from 0 to 32768 [ 67.649124][ T4827] do_el0_svc+0x58/0x13c [ 67.650803][ T4827] el0_svc+0x58/0x138 [ 67.651405][ T4827] el0t_64_sync_handler+0x84/0xf0 [ 67.652132][ T4827] el0t_64_sync+0x18c/0x190 [ 67.652850][ T4827] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 67.654527][ T4827] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 67.679712][ T4829] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 67.680913][ T4829] CPU: 0 PID: 4829 Comm: syz.2.263 Not tainted syzkaller #0 [ 67.682101][ T4829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 67.683623][ T4829] Call trace: [ 67.684100][ T4829] dump_backtrace+0x1c8/0x1f4 [ 67.684800][ T4829] show_stack+0x2c/0x3c [ 67.685425][ T4829] __dump_stack+0x30/0x40 [ 67.686064][ T4829] dump_stack_lvl+0xf8/0x160 [ 67.686702][ T4829] dump_stack+0x1c/0x5c [ 67.687351][ T4829] sysfs_create_dir_ns+0x22c/0x24c [ 67.688089][ T4829] kobject_add_internal+0x5a8/0xb30 [ 67.688836][ T4829] kobject_init_and_add+0x118/0x17c [ 67.689590][ T4829] gfs2_sys_fs_add+0x1dc/0x3d8 [ 67.690295][ T4829] gfs2_fill_super+0xdec/0x19ec [ 67.690994][ T4829] get_tree_bdev+0x358/0x544 [ 67.691609][ T4829] gfs2_get_tree+0x54/0x1b4 [ 67.692246][ T4829] vfs_get_tree+0x90/0x274 [ 67.692882][ T4829] do_new_mount+0x228/0x810 [ 67.693579][ T4829] path_mount+0x5b4/0xe78 [ 67.694177][ T4829] __arm64_sys_mount+0x49c/0x584 [ 67.694938][ T4829] invoke_syscall+0x98/0x2bc [ 67.695589][ T4829] el0_svc_common+0x138/0x258 [ 67.696277][ T4829] do_el0_svc+0x58/0x13c [ 67.696854][ T4829] el0_svc+0x58/0x138 [ 67.697428][ T4829] el0t_64_sync_handler+0x84/0xf0 [ 67.698110][ T4829] el0t_64_sync+0x18c/0x190 [ 67.698866][ T4829] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 67.700775][ T4829] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 67.797035][ T4831] loop0: detected capacity change from 0 to 32768 [ 67.840817][ T4347] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 67.850005][ T4831] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 67.851262][ T4831] CPU: 0 PID: 4831 Comm: syz.0.264 Not tainted syzkaller #0 [ 67.852362][ T4831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 67.853814][ T4831] Call trace: [ 67.854295][ T4831] dump_backtrace+0x1c8/0x1f4 [ 67.855030][ T4831] show_stack+0x2c/0x3c [ 67.855663][ T4831] __dump_stack+0x30/0x40 [ 67.856294][ T4831] dump_stack_lvl+0xf8/0x160 [ 67.856994][ T4831] dump_stack+0x1c/0x5c [ 67.857582][ T4831] sysfs_create_dir_ns+0x22c/0x24c [ 67.858219][ T4831] kobject_add_internal+0x5a8/0xb30 [ 67.858918][ T4831] kobject_init_and_add+0x118/0x17c [ 67.859641][ T4831] gfs2_sys_fs_add+0x1dc/0x3d8 [ 67.860437][ T4831] gfs2_fill_super+0xdec/0x19ec [ 67.861122][ T4831] get_tree_bdev+0x358/0x544 [ 67.861973][ T4831] gfs2_get_tree+0x54/0x1b4 [ 67.862656][ T4831] vfs_get_tree+0x90/0x274 [ 67.863277][ T4831] do_new_mount+0x228/0x810 [ 67.863950][ T4831] path_mount+0x5b4/0xe78 [ 67.864629][ T4831] __arm64_sys_mount+0x49c/0x584 [ 67.865426][ T4831] invoke_syscall+0x98/0x2bc [ 67.866157][ T4831] el0_svc_common+0x138/0x258 [ 67.866865][ T4831] do_el0_svc+0x58/0x13c [ 67.867495][ T4831] el0_svc+0x58/0x138 [ 67.868102][ T4831] el0t_64_sync_handler+0x84/0xf0 [ 67.868851][ T4831] el0t_64_sync+0x18c/0x190 [ 67.869611][ T4831] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 67.871521][ T4831] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 67.913853][ T4452] Bluetooth: hci0: command 0x0419 tx timeout [ 68.012174][ T4839] loop2: detected capacity change from 0 to 32768 [ 68.014098][ T4832] loop3: detected capacity change from 0 to 32768 [ 68.018589][ T4839] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 68.019831][ T4839] CPU: 0 PID: 4839 Comm: syz.2.268 Not tainted syzkaller #0 [ 68.020919][ T4839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 68.022346][ T4839] Call trace: [ 68.022821][ T4839] dump_backtrace+0x1c8/0x1f4 [ 68.023470][ T4839] show_stack+0x2c/0x3c [ 68.024101][ T4839] __dump_stack+0x30/0x40 [ 68.024716][ T4839] dump_stack_lvl+0xf8/0x160 [ 68.025336][ T4839] dump_stack+0x1c/0x5c [ 68.025876][ T4839] sysfs_create_dir_ns+0x22c/0x24c [ 68.026573][ T4839] kobject_add_internal+0x5a8/0xb30 [ 68.027403][ T4839] kobject_init_and_add+0x118/0x17c [ 68.028124][ T4839] gfs2_sys_fs_add+0x1dc/0x3d8 [ 68.028766][ T4839] gfs2_fill_super+0xdec/0x19ec [ 68.029489][ T4839] get_tree_bdev+0x358/0x544 [ 68.030158][ T4839] gfs2_get_tree+0x54/0x1b4 [ 68.030785][ T4839] vfs_get_tree+0x90/0x274 [ 68.031399][ T4839] do_new_mount+0x228/0x810 [ 68.032033][ T4839] path_mount+0x5b4/0xe78 [ 68.032632][ T4839] __arm64_sys_mount+0x49c/0x584 [ 68.033330][ T4839] invoke_syscall+0x98/0x2bc [ 68.033996][ T4839] el0_svc_common+0x138/0x258 [ 68.034737][ T4839] do_el0_svc+0x58/0x13c [ 68.035362][ T4839] el0_svc+0x58/0x138 [ 68.035925][ T4839] el0t_64_sync_handler+0x84/0xf0 [ 68.036682][ T4839] el0t_64_sync+0x18c/0x190 [ 68.037431][ T4839] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 68.039231][ T4839] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 68.049823][ T4832] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 68.050985][ T4832] CPU: 0 PID: 4832 Comm: syz.3.265 Not tainted syzkaller #0 [ 68.052069][ T4832] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 68.053520][ T4832] Call trace: [ 68.054008][ T4832] dump_backtrace+0x1c8/0x1f4 [ 68.054666][ T4832] show_stack+0x2c/0x3c [ 68.055258][ T4832] __dump_stack+0x30/0x40 [ 68.055887][ T4832] dump_stack_lvl+0xf8/0x160 [ 68.056543][ T4832] dump_stack+0x1c/0x5c [ 68.057190][ T4832] sysfs_create_dir_ns+0x22c/0x24c [ 68.057895][ T4832] kobject_add_internal+0x5a8/0xb30 [ 68.058598][ T4832] kobject_init_and_add+0x118/0x17c [ 68.059310][ T4832] gfs2_sys_fs_add+0x1dc/0x3d8 [ 68.059946][ T4832] gfs2_fill_super+0xdec/0x19ec [ 68.060631][ T4832] get_tree_bdev+0x358/0x544 [ 68.061292][ T4832] gfs2_get_tree+0x54/0x1b4 [ 68.061937][ T4832] vfs_get_tree+0x90/0x274 [ 68.062619][ T4832] do_new_mount+0x228/0x810 [ 68.063251][ T4832] path_mount+0x5b4/0xe78 [ 68.063893][ T4832] __arm64_sys_mount+0x49c/0x584 [ 68.064587][ T4832] invoke_syscall+0x98/0x2bc [ 68.065264][ T4832] el0_svc_common+0x138/0x258 [ 68.065939][ T4832] do_el0_svc+0x58/0x13c [ 68.066548][ T4832] el0_svc+0x58/0x138 [ 68.067106][ T4832] el0t_64_sync_handler+0x84/0xf0 [ 68.067812][ T4832] el0t_64_sync+0x18c/0x190 [ 68.068484][ T4832] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 68.070281][ T4832] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 68.138730][ T4712] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.154350][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.155736][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.164182][ T4712] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.172641][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.174116][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.206229][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.207335][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.209496][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.336868][ T4787] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 68.391801][ T4347] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 68.577914][ T4845] loop0: detected capacity change from 0 to 32768 [ 68.579719][ T4843] loop2: detected capacity change from 0 to 32768 [ 68.600063][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.602220][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.644681][ T4846] loop3: detected capacity change from 0 to 32768 [ 68.647580][ T4845] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 68.648738][ T4845] CPU: 0 PID: 4845 Comm: syz.0.273 Not tainted syzkaller #0 [ 68.649819][ T4845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 68.651365][ T4845] Call trace: [ 68.651883][ T4845] dump_backtrace+0x1c8/0x1f4 [ 68.652586][ T4845] show_stack+0x2c/0x3c [ 68.653201][ T4845] __dump_stack+0x30/0x40 [ 68.653907][ T4845] dump_stack_lvl+0xf8/0x160 [ 68.654548][ T4845] dump_stack+0x1c/0x5c [ 68.655169][ T4845] sysfs_create_dir_ns+0x22c/0x24c [ 68.655894][ T4845] kobject_add_internal+0x5a8/0xb30 [ 68.656632][ T4845] kobject_init_and_add+0x118/0x17c [ 68.657359][ T4845] gfs2_sys_fs_add+0x1dc/0x3d8 [ 68.657986][ T4845] gfs2_fill_super+0xdec/0x19ec [ 68.658712][ T4845] get_tree_bdev+0x358/0x544 [ 68.659417][ T4845] gfs2_get_tree+0x54/0x1b4 [ 68.660051][ T4845] vfs_get_tree+0x90/0x274 [ 68.660746][ T4845] do_new_mount+0x228/0x810 [ 68.661448][ T4845] path_mount+0x5b4/0xe78 [ 68.662062][ T4845] __arm64_sys_mount+0x49c/0x584 [ 68.662772][ T4845] invoke_syscall+0x98/0x2bc [ 68.663458][ T4845] el0_svc_common+0x138/0x258 [ 68.664143][ T4845] do_el0_svc+0x58/0x13c [ 68.664773][ T4845] el0_svc+0x58/0x138 [ 68.665350][ T4845] el0t_64_sync_handler+0x84/0xf0 [ 68.666163][ T4845] el0t_64_sync+0x18c/0x190 [ 68.666876][ T4845] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 68.668704][ T4845] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 68.670328][ T4843] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 68.671484][ T4843] CPU: 0 PID: 4843 Comm: syz.2.271 Not tainted syzkaller #0 [ 68.672573][ T4843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 68.674062][ T4843] Call trace: [ 68.674570][ T4843] dump_backtrace+0x1c8/0x1f4 [ 68.675293][ T4843] show_stack+0x2c/0x3c [ 68.675943][ T4843] __dump_stack+0x30/0x40 [ 68.676589][ T4843] dump_stack_lvl+0xf8/0x160 [ 68.677212][ T4843] dump_stack+0x1c/0x5c [ 68.677787][ T4843] sysfs_create_dir_ns+0x22c/0x24c [ 68.678542][ T4843] kobject_add_internal+0x5a8/0xb30 [ 68.679238][ T4843] kobject_init_and_add+0x118/0x17c [ 68.680051][ T4843] gfs2_sys_fs_add+0x1dc/0x3d8 [ 68.680760][ T4843] gfs2_fill_super+0xdec/0x19ec [ 68.681464][ T4843] get_tree_bdev+0x358/0x544 [ 68.682094][ T4843] gfs2_get_tree+0x54/0x1b4 [ 68.682710][ T4843] vfs_get_tree+0x90/0x274 [ 68.683329][ T4843] do_new_mount+0x228/0x810 [ 68.683981][ T4843] path_mount+0x5b4/0xe78 [ 68.684663][ T4843] __arm64_sys_mount+0x49c/0x584 [ 68.685426][ T4843] invoke_syscall+0x98/0x2bc [ 68.686140][ T4843] el0_svc_common+0x138/0x258 [ 68.686820][ T4843] do_el0_svc+0x58/0x13c [ 68.687421][ T4843] el0_svc+0x58/0x138 [ 68.688037][ T4843] el0t_64_sync_handler+0x84/0xf0 [ 68.688734][ T4843] el0t_64_sync+0x18c/0x190 [ 68.689454][ T4843] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 68.691265][ T4843] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 68.695418][ T4846] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 68.696567][ T4846] CPU: 0 PID: 4846 Comm: syz.3.275 Not tainted syzkaller #0 [ 68.697623][ T4846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 68.699044][ T4846] Call trace: [ 68.699516][ T4846] dump_backtrace+0x1c8/0x1f4 [ 68.700236][ T4846] show_stack+0x2c/0x3c [ 68.700849][ T4846] __dump_stack+0x30/0x40 [ 68.701492][ T4846] dump_stack_lvl+0xf8/0x160 [ 68.702141][ T4846] dump_stack+0x1c/0x5c [ 68.702780][ T4846] sysfs_create_dir_ns+0x22c/0x24c [ 68.703560][ T4846] kobject_add_internal+0x5a8/0xb30 [ 68.704316][ T4846] kobject_init_and_add+0x118/0x17c [ 68.705014][ T4846] gfs2_sys_fs_add+0x1dc/0x3d8 [ 68.705686][ T4846] gfs2_fill_super+0xdec/0x19ec [ 68.706368][ T4846] get_tree_bdev+0x358/0x544 [ 68.706989][ T4846] gfs2_get_tree+0x54/0x1b4 [ 68.707593][ T4846] vfs_get_tree+0x90/0x274 [ 68.708225][ T4846] do_new_mount+0x228/0x810 [ 68.708857][ T4846] path_mount+0x5b4/0xe78 [ 68.709510][ T4846] __arm64_sys_mount+0x49c/0x584 [ 68.710210][ T4846] invoke_syscall+0x98/0x2bc [ 68.710843][ T4846] el0_svc_common+0x138/0x258 [ 68.711527][ T4846] do_el0_svc+0x58/0x13c [ 68.712111][ T4846] el0_svc+0x58/0x138 [ 68.712668][ T4846] el0t_64_sync_handler+0x84/0xf0 [ 68.713398][ T4846] el0t_64_sync+0x18c/0x190 [ 68.714110][ T4846] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 68.716023][ T4846] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 68.721683][ T11] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.722859][ T11] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.724560][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.727928][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.735852][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.738479][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.756732][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.758349][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.760289][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.762596][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.763960][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.765673][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.767681][ T4712] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.952372][ T4849] loop4: detected capacity change from 0 to 32768 [ 68.954914][ T4849] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 68.955939][ T4849] CPU: 1 PID: 4849 Comm: syz.4.278 Not tainted syzkaller #0 [ 68.957024][ T4849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 68.958324][ T4849] Call trace: [ 68.958821][ T4849] dump_backtrace+0x1c8/0x1f4 [ 68.959534][ T4849] show_stack+0x2c/0x3c [ 68.960146][ T4849] __dump_stack+0x30/0x40 [ 68.960736][ T4849] dump_stack_lvl+0xf8/0x160 [ 68.961371][ T4849] dump_stack+0x1c/0x5c [ 68.961971][ T4849] sysfs_create_dir_ns+0x22c/0x24c [ 68.962706][ T4849] kobject_add_internal+0x5a8/0xb30 [ 68.963492][ T4849] kobject_init_and_add+0x118/0x17c [ 68.964232][ T4849] gfs2_sys_fs_add+0x1dc/0x3d8 [ 68.964940][ T4849] gfs2_fill_super+0xdec/0x19ec [ 68.965651][ T4849] get_tree_bdev+0x358/0x544 [ 68.966304][ T4849] gfs2_get_tree+0x54/0x1b4 [ 68.966972][ T4849] vfs_get_tree+0x90/0x274 [ 68.967598][ T4849] do_new_mount+0x228/0x810 [ 68.968242][ T4849] path_mount+0x5b4/0xe78 [ 68.968867][ T4849] __arm64_sys_mount+0x49c/0x584 [ 68.969663][ T4849] invoke_syscall+0x98/0x2bc [ 68.970385][ T4849] el0_svc_common+0x138/0x258 [ 68.971091][ T4849] do_el0_svc+0x58/0x13c [ 68.971779][ T4849] el0_svc+0x58/0x138 [ 68.972397][ T4849] el0t_64_sync_handler+0x84/0xf0 [ 68.973186][ T4849] el0t_64_sync+0x18c/0x190 [ 68.975794][ T4849] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 68.977777][ T4849] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 68.987450][ T4346] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 69.006410][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.079184][ T4851] loop2: detected capacity change from 0 to 32768 [ 69.216551][ T4347] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 69.240185][ T4851] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.241391][ T4851] CPU: 0 PID: 4851 Comm: syz.2.279 Not tainted syzkaller #0 [ 69.242445][ T4851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.243887][ T4851] Call trace: [ 69.244336][ T4851] dump_backtrace+0x1c8/0x1f4 [ 69.245007][ T4851] show_stack+0x2c/0x3c [ 69.245550][ T4851] __dump_stack+0x30/0x40 [ 69.246184][ T4851] dump_stack_lvl+0xf8/0x160 [ 69.246896][ T4851] dump_stack+0x1c/0x5c [ 69.247465][ T4851] sysfs_create_dir_ns+0x22c/0x24c [ 69.248223][ T4851] kobject_add_internal+0x5a8/0xb30 [ 69.248942][ T4851] kobject_init_and_add+0x118/0x17c [ 69.249760][ T4851] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.250527][ T4851] gfs2_fill_super+0xdec/0x19ec [ 69.251222][ T4851] get_tree_bdev+0x358/0x544 [ 69.251895][ T4851] gfs2_get_tree+0x54/0x1b4 [ 69.252553][ T4851] vfs_get_tree+0x90/0x274 [ 69.253212][ T4851] do_new_mount+0x228/0x810 [ 69.253923][ T4851] path_mount+0x5b4/0xe78 [ 69.254574][ T4851] __arm64_sys_mount+0x49c/0x584 [ 69.255344][ T4851] invoke_syscall+0x98/0x2bc [ 69.256060][ T4851] el0_svc_common+0x138/0x258 [ 69.256776][ T4851] do_el0_svc+0x58/0x13c [ 69.257495][ T4851] el0_svc+0x58/0x138 [ 69.258162][ T4851] el0t_64_sync_handler+0x84/0xf0 [ 69.258931][ T4851] el0t_64_sync+0x18c/0x190 [ 69.259655][ T4851] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.261461][ T4851] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 69.269060][ T4852] loop0: detected capacity change from 0 to 32768 [ 69.269093][ T4854] loop3: detected capacity change from 0 to 32768 [ 69.294605][ T4852] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.295833][ T4852] CPU: 1 PID: 4852 Comm: syz.0.281 Not tainted syzkaller #0 [ 69.296917][ T4852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.298456][ T4852] Call trace: [ 69.298959][ T4852] dump_backtrace+0x1c8/0x1f4 [ 69.299658][ T4852] show_stack+0x2c/0x3c [ 69.300228][ T4852] __dump_stack+0x30/0x40 [ 69.300880][ T4852] dump_stack_lvl+0xf8/0x160 [ 69.301554][ T4852] dump_stack+0x1c/0x5c [ 69.302145][ T4852] sysfs_create_dir_ns+0x22c/0x24c [ 69.302900][ T4852] kobject_add_internal+0x5a8/0xb30 [ 69.303627][ T4852] kobject_init_and_add+0x118/0x17c [ 69.304401][ T4852] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.305073][ T4852] gfs2_fill_super+0xdec/0x19ec [ 69.305751][ T4852] get_tree_bdev+0x358/0x544 [ 69.306413][ T4852] gfs2_get_tree+0x54/0x1b4 [ 69.307025][ T4852] vfs_get_tree+0x90/0x274 [ 69.307668][ T4852] do_new_mount+0x228/0x810 [ 69.308328][ T4852] path_mount+0x5b4/0xe78 [ 69.308939][ T4852] __arm64_sys_mount+0x49c/0x584 [ 69.309700][ T4852] invoke_syscall+0x98/0x2bc [ 69.310378][ T4852] el0_svc_common+0x138/0x258 [ 69.311021][ T4852] do_el0_svc+0x58/0x13c [ 69.311657][ T4852] el0_svc+0x58/0x138 [ 69.312280][ T4852] el0t_64_sync_handler+0x84/0xf0 [ 69.312959][ T4852] el0t_64_sync+0x18c/0x190 [ 69.314064][ T4852] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.315912][ T4852] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 69.319186][ T4854] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.320385][ T4854] CPU: 1 PID: 4854 Comm: syz.3.280 Not tainted syzkaller #0 [ 69.321534][ T4854] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.322918][ T4854] Call trace: [ 69.323416][ T4854] dump_backtrace+0x1c8/0x1f4 [ 69.324042][ T4854] show_stack+0x2c/0x3c [ 69.324699][ T4854] __dump_stack+0x30/0x40 [ 69.325302][ T4854] dump_stack_lvl+0xf8/0x160 [ 69.325959][ T4854] dump_stack+0x1c/0x5c [ 69.326599][ T4854] sysfs_create_dir_ns+0x22c/0x24c [ 69.327396][ T4854] kobject_add_internal+0x5a8/0xb30 [ 69.328108][ T4854] kobject_init_and_add+0x118/0x17c [ 69.328854][ T4854] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.329499][ T4854] gfs2_fill_super+0xdec/0x19ec [ 69.330292][ T4854] get_tree_bdev+0x358/0x544 [ 69.331002][ T4854] gfs2_get_tree+0x54/0x1b4 [ 69.331669][ T4854] vfs_get_tree+0x90/0x274 [ 69.332309][ T4854] do_new_mount+0x228/0x810 [ 69.332968][ T4854] path_mount+0x5b4/0xe78 [ 69.333582][ T4854] __arm64_sys_mount+0x49c/0x584 [ 69.334282][ T4854] invoke_syscall+0x98/0x2bc [ 69.334934][ T4854] el0_svc_common+0x138/0x258 [ 69.335574][ T4854] do_el0_svc+0x58/0x13c [ 69.336188][ T4854] el0_svc+0x58/0x138 [ 69.336734][ T4854] el0t_64_sync_handler+0x84/0xf0 [ 69.337470][ T4854] el0t_64_sync+0x18c/0x190 [ 69.338600][ T4854] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.340588][ T4854] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 69.583231][ T4859] loop3: detected capacity change from 0 to 32768 [ 69.585795][ T4856] loop2: detected capacity change from 0 to 32768 [ 69.632112][ T4859] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.633337][ T4859] CPU: 0 PID: 4859 Comm: syz.3.285 Not tainted syzkaller #0 [ 69.634521][ T4859] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.636015][ T4859] Call trace: [ 69.636483][ T4859] dump_backtrace+0x1c8/0x1f4 [ 69.637190][ T4859] show_stack+0x2c/0x3c [ 69.637824][ T4859] __dump_stack+0x30/0x40 [ 69.638454][ T4859] dump_stack_lvl+0xf8/0x160 [ 69.639095][ T4859] dump_stack+0x1c/0x5c [ 69.639716][ T4859] sysfs_create_dir_ns+0x22c/0x24c [ 69.640479][ T4859] kobject_add_internal+0x5a8/0xb30 [ 69.641188][ T4859] kobject_init_and_add+0x118/0x17c [ 69.641855][ T4859] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.642578][ T4859] gfs2_fill_super+0xdec/0x19ec [ 69.643293][ T4859] get_tree_bdev+0x358/0x544 [ 69.643975][ T4859] gfs2_get_tree+0x54/0x1b4 [ 69.644614][ T4859] vfs_get_tree+0x90/0x274 [ 69.645239][ T4859] do_new_mount+0x228/0x810 [ 69.645879][ T4859] path_mount+0x5b4/0xe78 [ 69.646468][ T4859] __arm64_sys_mount+0x49c/0x584 [ 69.647165][ T4859] invoke_syscall+0x98/0x2bc [ 69.647833][ T4859] el0_svc_common+0x138/0x258 [ 69.648497][ T4859] do_el0_svc+0x58/0x13c [ 69.649161][ T4859] el0_svc+0x58/0x138 [ 69.649753][ T4859] el0t_64_sync_handler+0x84/0xf0 [ 69.650478][ T4859] el0t_64_sync+0x18c/0x190 [ 69.651211][ T4859] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.652952][ T4859] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 69.661742][ T4856] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.662911][ T4856] CPU: 0 PID: 4856 Comm: syz.2.282 Not tainted syzkaller #0 [ 69.664052][ T4856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.665535][ T4856] Call trace: [ 69.666068][ T4856] dump_backtrace+0x1c8/0x1f4 [ 69.666740][ T4856] show_stack+0x2c/0x3c [ 69.667332][ T4856] __dump_stack+0x30/0x40 [ 69.667955][ T4856] dump_stack_lvl+0xf8/0x160 [ 69.668602][ T4856] dump_stack+0x1c/0x5c [ 69.669213][ T4856] sysfs_create_dir_ns+0x22c/0x24c [ 69.669991][ T4856] kobject_add_internal+0x5a8/0xb30 [ 69.670768][ T4856] kobject_init_and_add+0x118/0x17c [ 69.671599][ T4856] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.672278][ T4856] gfs2_fill_super+0xdec/0x19ec [ 69.672975][ T4856] get_tree_bdev+0x358/0x544 [ 69.673708][ T4856] gfs2_get_tree+0x54/0x1b4 [ 69.674408][ T4856] vfs_get_tree+0x90/0x274 [ 69.675025][ T4856] do_new_mount+0x228/0x810 [ 69.675689][ T4856] path_mount+0x5b4/0xe78 [ 69.676301][ T4856] __arm64_sys_mount+0x49c/0x584 [ 69.677004][ T4856] invoke_syscall+0x98/0x2bc [ 69.677677][ T4856] el0_svc_common+0x138/0x258 [ 69.678302][ T4856] do_el0_svc+0x58/0x13c [ 69.678899][ T4856] el0_svc+0x58/0x138 [ 69.679479][ T4856] el0t_64_sync_handler+0x84/0xf0 [ 69.680259][ T4856] el0t_64_sync+0x18c/0x190 [ 69.680996][ T4856] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.682790][ T4856] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 69.712710][ T4858] loop4: detected capacity change from 0 to 32768 [ 69.721318][ T4858] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.722463][ T4858] CPU: 1 PID: 4858 Comm: syz.4.284 Not tainted syzkaller #0 [ 69.723658][ T4858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.725061][ T4858] Call trace: [ 69.725559][ T4858] dump_backtrace+0x1c8/0x1f4 [ 69.726237][ T4858] show_stack+0x2c/0x3c [ 69.726833][ T4858] __dump_stack+0x30/0x40 [ 69.727473][ T4858] dump_stack_lvl+0xf8/0x160 [ 69.728111][ T4858] dump_stack+0x1c/0x5c [ 69.728686][ T4858] sysfs_create_dir_ns+0x22c/0x24c [ 69.729418][ T4858] kobject_add_internal+0x5a8/0xb30 [ 69.730187][ T4858] kobject_init_and_add+0x118/0x17c [ 69.730984][ T4858] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.731675][ T4858] gfs2_fill_super+0xdec/0x19ec [ 69.732463][ T4858] get_tree_bdev+0x358/0x544 [ 69.733169][ T4858] gfs2_get_tree+0x54/0x1b4 [ 69.733872][ T4858] vfs_get_tree+0x90/0x274 [ 69.734520][ T4858] do_new_mount+0x228/0x810 [ 69.735165][ T4858] path_mount+0x5b4/0xe78 [ 69.735844][ T4858] __arm64_sys_mount+0x49c/0x584 [ 69.736527][ T4858] invoke_syscall+0x98/0x2bc [ 69.737197][ T4858] el0_svc_common+0x138/0x258 [ 69.737842][ T4858] do_el0_svc+0x58/0x13c [ 69.738451][ T4858] el0_svc+0x58/0x138 [ 69.739031][ T4858] el0t_64_sync_handler+0x84/0xf0 [ 69.739794][ T4858] el0t_64_sync+0x18c/0x190 [ 69.740492][ T4858] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.742306][ T4858] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 69.760709][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.761968][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.767891][ T4712] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.400463][ T4876] loop2: detected capacity change from 0 to 32768 [ 70.411341][ T4876] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 70.412519][ T4876] CPU: 1 PID: 4876 Comm: syz.2.293 Not tainted syzkaller #0 [ 70.413668][ T4876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 70.415077][ T4876] Call trace: [ 70.415551][ T4876] dump_backtrace+0x1c8/0x1f4 [ 70.416227][ T4876] show_stack+0x2c/0x3c [ 70.416865][ T4876] __dump_stack+0x30/0x40 [ 70.417497][ T4876] dump_stack_lvl+0xf8/0x160 [ 70.418149][ T4876] dump_stack+0x1c/0x5c [ 70.418709][ T4876] sysfs_create_dir_ns+0x22c/0x24c [ 70.419428][ T4876] kobject_add_internal+0x5a8/0xb30 [ 70.420169][ T4876] kobject_init_and_add+0x118/0x17c [ 70.420879][ T4876] gfs2_sys_fs_add+0x1dc/0x3d8 [ 70.421574][ T4876] gfs2_fill_super+0xdec/0x19ec [ 70.422255][ T4876] get_tree_bdev+0x358/0x544 [ 70.422906][ T4876] gfs2_get_tree+0x54/0x1b4 [ 70.423521][ T4876] vfs_get_tree+0x90/0x274 [ 70.424164][ T4876] do_new_mount+0x228/0x810 [ 70.424850][ T4876] path_mount+0x5b4/0xe78 [ 70.425459][ T4876] __arm64_sys_mount+0x49c/0x584 [ 70.426097][ T4876] invoke_syscall+0x98/0x2bc [ 70.426767][ T4876] el0_svc_common+0x138/0x258 [ 70.427433][ T4876] do_el0_svc+0x58/0x13c [ 70.428072][ T4876] el0_svc+0x58/0x138 [ 70.428670][ T4876] el0t_64_sync_handler+0x84/0xf0 [ 70.429395][ T4876] el0t_64_sync+0x18c/0x190 [ 70.430136][ T4876] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 70.431933][ T4876] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 70.438046][ T4347] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 70.489151][ T4712] device veth0_vlan entered promiscuous mode [ 70.502655][ T4712] device veth1_vlan entered promiscuous mode [ 70.615009][ T4880] loop4: detected capacity change from 0 to 32768 [ 70.620212][ T4880] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 70.621381][ T4880] CPU: 0 PID: 4880 Comm: syz.4.296 Not tainted syzkaller #0 [ 70.622508][ T4880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 70.623956][ T4880] Call trace: [ 70.624433][ T4880] dump_backtrace+0x1c8/0x1f4 [ 70.625120][ T4880] show_stack+0x2c/0x3c [ 70.625755][ T4880] __dump_stack+0x30/0x40 [ 70.626346][ T4880] dump_stack_lvl+0xf8/0x160 [ 70.626977][ T4880] dump_stack+0x1c/0x5c [ 70.627605][ T4880] sysfs_create_dir_ns+0x22c/0x24c [ 70.628288][ T4880] kobject_add_internal+0x5a8/0xb30 [ 70.629021][ T4880] kobject_init_and_add+0x118/0x17c [ 70.629775][ T4880] gfs2_sys_fs_add+0x1dc/0x3d8 [ 70.630437][ T4880] gfs2_fill_super+0xdec/0x19ec [ 70.631131][ T4880] get_tree_bdev+0x358/0x544 [ 70.631837][ T4880] gfs2_get_tree+0x54/0x1b4 [ 70.632515][ T4880] vfs_get_tree+0x90/0x274 [ 70.633166][ T4880] do_new_mount+0x228/0x810 [ 70.633843][ T4880] path_mount+0x5b4/0xe78 [ 70.634427][ T4880] __arm64_sys_mount+0x49c/0x584 [ 70.635169][ T4880] invoke_syscall+0x98/0x2bc [ 70.635813][ T4880] el0_svc_common+0x138/0x258 [ 70.636495][ T4880] do_el0_svc+0x58/0x13c [ 70.637062][ T4880] el0_svc+0x58/0x138 [ 70.637566][ T4880] el0t_64_sync_handler+0x84/0xf0 [ 70.638332][ T4880] el0t_64_sync+0x18c/0x190 [ 70.639040][ T4880] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 70.640892][ T4880] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 70.680744][ T4716] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 70.681455][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.683750][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.685154][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 70.686595][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.688052][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.689444][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.991033][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 71.000262][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 71.001782][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.003156][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.073052][ T4886] loop2: detected capacity change from 0 to 32768 [ 71.108285][ T4886] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 71.109441][ T4886] CPU: 0 PID: 4886 Comm: syz.2.300 Not tainted syzkaller #0 [ 71.110631][ T4886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.112257][ T4886] Call trace: [ 71.112757][ T4886] dump_backtrace+0x1c8/0x1f4 [ 71.113478][ T4886] show_stack+0x2c/0x3c [ 71.114151][ T4886] __dump_stack+0x30/0x40 [ 71.114846][ T4886] dump_stack_lvl+0xf8/0x160 [ 71.115557][ T4886] dump_stack+0x1c/0x5c [ 71.116193][ T4886] sysfs_create_dir_ns+0x22c/0x24c [ 71.116997][ T4886] kobject_add_internal+0x5a8/0xb30 [ 71.117747][ T4886] kobject_init_and_add+0x118/0x17c [ 71.118500][ T4886] gfs2_sys_fs_add+0x1dc/0x3d8 [ 71.119221][ T4886] gfs2_fill_super+0xdec/0x19ec [ 71.119949][ T4886] get_tree_bdev+0x358/0x544 [ 71.120588][ T4886] gfs2_get_tree+0x54/0x1b4 [ 71.121261][ T4886] vfs_get_tree+0x90/0x274 [ 71.121912][ T4886] do_new_mount+0x228/0x810 [ 71.122602][ T4886] path_mount+0x5b4/0xe78 [ 71.123211][ T4886] __arm64_sys_mount+0x49c/0x584 [ 71.123954][ T4886] invoke_syscall+0x98/0x2bc [ 71.124633][ T4886] el0_svc_common+0x138/0x258 [ 71.125279][ T4886] do_el0_svc+0x58/0x13c [ 71.125910][ T4886] el0_svc+0x58/0x138 [ 71.126493][ T4886] el0t_64_sync_handler+0x84/0xf0 [ 71.127212][ T4886] el0t_64_sync+0x18c/0x190 [ 71.127999][ T4886] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 71.129867][ T4886] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 71.149105][ T4712] device veth0_macvtap entered promiscuous mode [ 71.289356][ T4712] device veth1_macvtap entered promiscuous mode [ 71.303109][ T4712] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 71.304812][ T4712] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 71.306277][ T4712] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 71.307769][ T4712] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 71.309194][ T4712] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 71.319838][ T4712] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 71.321329][ T4712] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 71.322904][ T4712] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 71.324368][ T4712] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 71.325830][ T4712] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 71.328037][ T4712] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 71.385301][ T4892] loop0: detected capacity change from 0 to 32768 [ 71.388341][ T4712] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 71.390114][ T4712] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 71.391589][ T4712] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 71.393020][ T4712] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 71.394354][ T4712] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 71.395935][ T4712] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 71.397426][ T4712] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 71.399006][ T4712] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 71.400447][ T4712] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 71.401901][ T4712] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 71.404034][ T4712] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.406351][ T4712] netdevsim netdevsim5 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.407641][ T4712] netdevsim netdevsim5 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.408966][ T4712] netdevsim netdevsim5 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.410367][ T4712] netdevsim netdevsim5 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.428504][ T4892] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 71.429745][ T4892] CPU: 0 PID: 4892 Comm: syz.0.305 Not tainted syzkaller #0 [ 71.430905][ T4892] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.432531][ T4892] Call trace: [ 71.433031][ T4892] dump_backtrace+0x1c8/0x1f4 [ 71.433740][ T4892] show_stack+0x2c/0x3c [ 71.434338][ T4892] __dump_stack+0x30/0x40 [ 71.434991][ T4892] dump_stack_lvl+0xf8/0x160 [ 71.435614][ T4892] dump_stack+0x1c/0x5c [ 71.436194][ T4892] sysfs_create_dir_ns+0x22c/0x24c [ 71.436939][ T4892] kobject_add_internal+0x5a8/0xb30 [ 71.437694][ T4892] kobject_init_and_add+0x118/0x17c [ 71.438412][ T4892] gfs2_sys_fs_add+0x1dc/0x3d8 [ 71.439142][ T4892] gfs2_fill_super+0xdec/0x19ec [ 71.439876][ T4892] get_tree_bdev+0x358/0x544 [ 71.440479][ T4892] gfs2_get_tree+0x54/0x1b4 [ 71.441064][ T4892] vfs_get_tree+0x90/0x274 [ 71.441674][ T4892] do_new_mount+0x228/0x810 [ 71.442295][ T4892] path_mount+0x5b4/0xe78 [ 71.442911][ T4892] __arm64_sys_mount+0x49c/0x584 [ 71.443727][ T4892] invoke_syscall+0x98/0x2bc [ 71.444439][ T4892] el0_svc_common+0x138/0x258 [ 71.445169][ T4892] do_el0_svc+0x58/0x13c [ 71.445859][ T4892] el0_svc+0x58/0x138 [ 71.446426][ T4892] el0t_64_sync_handler+0x84/0xf0 [ 71.447177][ T4892] el0t_64_sync+0x18c/0x190 [ 71.447935][ T4892] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 71.449668][ T4892] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 71.588410][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 71.616152][ T4520] INFO: trying to register non-static key. [ 71.617035][ T4520] The code is fine but needs lockdep annotation, or maybe [ 71.618175][ T4520] you didn't initialize this object before use? [ 71.619137][ T4520] turning off the locking correctness validator. [ 71.620088][ T4520] CPU: 1 PID: 4520 Comm: gfs2_quotad Not tainted syzkaller #0 [ 71.621286][ T4520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.622885][ T4520] Call trace: [ 71.623343][ T4520] dump_backtrace+0x1c8/0x1f4 [ 71.624074][ T4520] show_stack+0x2c/0x3c [ 71.624711][ T4520] __dump_stack+0x30/0x40 [ 71.625366][ T4520] dump_stack_lvl+0xf8/0x160 [ 71.626020][ T4520] dump_stack+0x1c/0x5c [ 71.626651][ T4520] assign_lock_key+0x224/0x258 [ 71.627329][ T4520] register_lock_class+0x1ac/0x694 [ 71.628176][ T4520] __lock_acquire+0x150/0x6544 [ 71.628890][ T4520] lock_acquire+0x20c/0x644 [ 71.629528][ T4520] _raw_spin_lock_irqsave+0x6c/0xb4 [ 71.630318][ T4520] finish_wait+0xc8/0x1ac [ 71.630984][ T4520] gfs2_quotad+0x390/0x4fc [ 71.631666][ T4520] kthread+0x250/0x2d8 [ 71.632269][ T4520] ret_from_fork+0x10/0x20 [ 71.632954][ T4520] list_del corruption. prev->next should be ffff800021777d98, but was 0000000000000000. (prev=ffff0000d36b4bd8) [ 71.634941][ T4520] ------------[ cut here ]------------ [ 71.635750][ T4520] kernel BUG at lib/list_debug.c:61! [ 71.636502][ T4520] Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP [ 71.637618][ T4520] Modules linked in: [ 71.638230][ T4520] CPU: 1 PID: 4520 Comm: gfs2_quotad Not tainted syzkaller #0 [ 71.639315][ T4520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.640672][ T4520] pstate: 624000c5 (nZCv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 71.641759][ T4520] pc : __list_del_entry_valid+0x13c/0x158 [ 71.642583][ T4520] lr : __list_del_entry_valid+0x13c/0x158 [ 71.643355][ T4520] sp : ffff800021777c70 [ 71.643929][ T4520] x29: ffff800021777c70 x28: 0000000000000000 x27: 0000000000000bb8 [ 71.645073][ T4520] x26: 0000000000001770 x25: dfff800000000000 x24: dfff800000000000 [ 71.646212][ T4520] x23: ffff0000d36b47c0 x22: dfff800000000000 x21: ffff0000d36b4bd8 [ 71.647326][ T4520] x20: ffff0000d36b4bd8 x19: ffff800021777d98 x18: ffff800011abbcc0 [ 71.648432][ T4520] x17: 20747562202c3839 x16: ffff8000082e7de8 x15: 0000000000000000 [ 71.649514][ T4520] x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000ff0100 [ 71.650668][ T4520] x11: ff0080000830a28c x10: 0000000000000000 x9 : 06cf463a5c157800 [ 71.651886][ T4520] x8 : 06cf463a5c157800 x7 : 0000000000000001 x6 : 0000000000000001 [ 71.653143][ T4520] x5 : ffff800021777738 x4 : ffff8000151a4920 x3 : ffff800008311fcc [ 71.654314][ T4520] x2 : 0000000000000001 x1 : 0000000100000001 x0 : 000000000000006d [ 71.655413][ T4520] Call trace: [ 71.655857][ T4520] __list_del_entry_valid+0x13c/0x158 [ 71.656628][ T4520] finish_wait+0xd4/0x1ac [ 71.657255][ T4520] gfs2_quotad+0x390/0x4fc [ 71.657903][ T4520] kthread+0x250/0x2d8 [ 71.658471][ T4520] ret_from_fork+0x10/0x20 [ 71.659128][ T4520] Code: 91028000 aa1303e1 aa1503e3 95bfbbe3 (d4210000) [ 71.660186][ T4520] ---[ end trace 0000000000000000 ]--- [ 72.083137][ T4520] Kernel panic - not syncing: Oops - BUG: Fatal exception [ 72.084125][ T4520] SMP: stopping secondary CPUs [ 72.084847][ T4520] Kernel Offset: disabled [ 72.085437][ T4520] CPU features: 0x080000,000f0097,a65bfea7 [ 72.086207][ T4520] Memory Limit: none [ 72.487201][ T4520] Rebooting in 86400 seconds..