][ T6260] CPU: 0 PID: 6260 Comm: syz.1.616 Not tainted syzkaller #0 [ 218.411711][ T6260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 218.413410][ T6260] Call trace: [ 218.413941][ T6260] dump_backtrace+0x0/0x43c [ 218.414708][ T6260] show_stack+0x2c/0x3c [ 218.415353][ T6260] __dump_stack+0x30/0x40 [ 218.416019][ T6260] dump_stack_lvl+0xf8/0x160 [ 218.416722][ T6260] dump_stack+0x1c/0x5c [ 218.417345][ T6260] sysfs_create_dir_ns+0x22c/0x24c [ 218.418127][ T6260] kobject_add_internal+0x590/0xc54 [ 218.418869][ T6260] kobject_init_and_add+0x118/0x17c [ 218.419571][ T6260] gfs2_sys_fs_add+0x1dc/0x3d8 [ 218.420211][ T6260] gfs2_fill_super+0xdac/0x19e0 [ 218.420855][ T6260] get_tree_bdev+0x358/0x544 [ 218.421477][ T6260] gfs2_get_tree+0x54/0x1b4 [ 218.422108][ T6260] vfs_get_tree+0x90/0x274 [ 218.422728][ T6260] do_new_mount+0x228/0x810 [ 218.423391][ T6260] path_mount+0x5b4/0x1000 [ 218.424023][ T6260] __arm64_sys_mount+0x514/0x5e4 [ 218.424727][ T6260] invoke_syscall+0x98/0x2b8 [ 218.425307][ T6260] el0_svc_common+0x138/0x258 [ 218.425952][ T6260] do_el0_svc+0x58/0x14c [ 218.426576][ T6260] el0_svc+0x78/0x1e0 [ 218.427114][ T6260] el0t_64_sync_handler+0xcc/0xe4 [ 218.427806][ T6260] el0t_64_sync+0x1a0/0x1a4 [ 218.428549][ T6260] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.430379][ T6260] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.496525][ T6262] chnl_net:caif_netlink_parms(): no params data found [ 218.514989][ T6262] bridge0: port 1(bridge_slave_0) entered blocking state [ 218.516120][ T6262] bridge0: port 1(bridge_slave_0) entered disabled state [ 218.518203][ T6262] device bridge_slave_0 entered promiscuous mode [ 218.520070][ T6262] bridge0: port 2(bridge_slave_1) entered blocking state [ 218.521154][ T6262] bridge0: port 2(bridge_slave_1) entered disabled state [ 218.522561][ T6262] device bridge_slave_1 entered promiscuous mode [ 218.531332][ T6262] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 218.533676][ T6262] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 218.542192][ T6262] team0: Port device team_slave_0 added [ 218.544019][ T6262] team0: Port device team_slave_1 added [ 218.552564][ T6262] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 218.553518][ T6262] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 218.557279][ T6262] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 218.559459][ T6262] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 218.560443][ T6262] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 218.563999][ T6262] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 218.608315][ T6262] device hsr_slave_0 entered promiscuous mode [ 218.657235][ T6262] device hsr_slave_1 entered promiscuous mode [ 218.697082][ T6262] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 218.698379][ T6262] Cannot create hsr debugfs directory [ 218.735514][ T6262] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 218.924572][ T6262] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 219.241469][ T6262] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 219.284781][ T6262] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 219.469630][ T6262] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 219.543677][ T6262] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 219.578206][ T6262] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 219.641138][ T6262] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 219.702475][ T6262] 8021q: adding VLAN 0 to HW filter on device bond0 [ 219.706117][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 219.709790][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 219.712555][ T6262] 8021q: adding VLAN 0 to HW filter on device team0 [ 219.714973][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 219.716445][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 219.718169][ T353] bridge0: port 1(bridge_slave_0) entered blocking state [ 219.719253][ T353] bridge0: port 1(bridge_slave_0) entered forwarding state [ 219.720550][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 219.723133][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 219.724708][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 219.726077][ T353] bridge0: port 2(bridge_slave_1) entered blocking state [ 219.727091][ T353] bridge0: port 2(bridge_slave_1) entered forwarding state [ 219.731476][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 219.734245][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 219.736940][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 219.739772][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 219.744625][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 219.746742][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 219.751146][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 219.753739][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 219.755232][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 219.758419][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 219.759995][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 219.762180][ T6262] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 219.799867][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 219.801092][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 219.804080][ T6262] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 219.813034][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 219.814660][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 219.821206][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 219.822755][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 219.824344][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 219.825669][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 219.830299][ T6262] device veth0_vlan entered promiscuous mode [ 219.833742][ T6262] device veth1_vlan entered promiscuous mode [ 219.840815][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 219.842394][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 219.843914][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 219.845376][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 219.848015][ T6262] device veth0_macvtap entered promiscuous mode [ 219.850414][ T6262] device veth1_macvtap entered promiscuous mode [ 219.855298][ T6262] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 219.856809][ T6262] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 219.859304][ T6262] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 219.860828][ T6262] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 219.863266][ T6262] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 219.868050][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 219.869611][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 219.871148][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 219.872718][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 219.874798][ T6262] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 219.876557][ T6262] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 219.878690][ T6262] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 219.880254][ T6262] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 219.882268][ T6262] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 219.883436][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 219.885076][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 219.887884][ T6262] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 219.889240][ T6262] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 219.890574][ T6262] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 219.891979][ T6262] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 219.916871][ T1638] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 219.918461][ T1638] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 219.920005][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 219.934118][ T1638] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 219.935353][ T1638] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 219.936873][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:03:39 executed programs: 603 [ 220.085276][ T6280] loop1: detected capacity change from 0 to 32768 [ 220.122194][ T6280] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.123375][ T6280] CPU: 1 PID: 6280 Comm: syz.1.617 Not tainted syzkaller #0 [ 220.124506][ T6280] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 220.125953][ T6280] Call trace: [ 220.126410][ T6280] dump_backtrace+0x0/0x43c [ 220.127111][ T6280] show_stack+0x2c/0x3c [ 220.127773][ T6280] __dump_stack+0x30/0x40 [ 220.128376][ T6280] dump_stack_lvl+0xf8/0x160 [ 220.129033][ T6280] dump_stack+0x1c/0x5c [ 220.129613][ T6280] sysfs_create_dir_ns+0x22c/0x24c [ 220.130341][ T6280] kobject_add_internal+0x590/0xc54 [ 220.131126][ T6280] kobject_init_and_add+0x118/0x17c [ 220.131868][ T6280] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.132573][ T6280] gfs2_fill_super+0xdac/0x19e0 [ 220.133320][ T6280] get_tree_bdev+0x358/0x544 [ 220.133991][ T6280] gfs2_get_tree+0x54/0x1b4 [ 220.134638][ T6280] vfs_get_tree+0x90/0x274 [ 220.135243][ T6280] do_new_mount+0x228/0x810 [ 220.135891][ T6280] path_mount+0x5b4/0x1000 [ 220.136507][ T6280] __arm64_sys_mount+0x514/0x5e4 [ 220.137260][ T6280] invoke_syscall+0x98/0x2b8 [ 220.137967][ T6280] el0_svc_common+0x138/0x258 [ 220.138639][ T6280] do_el0_svc+0x58/0x14c [ 220.139230][ T6280] el0_svc+0x78/0x1e0 [ 220.139808][ T6280] el0t_64_sync_handler+0xcc/0xe4 [ 220.140522][ T6280] el0t_64_sync+0x1a0/0x1a4 [ 220.142466][ T6280] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.144505][ T6280] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.280243][ T6282] loop1: detected capacity change from 0 to 32768 [ 220.313315][ T6282] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.314524][ T6282] CPU: 1 PID: 6282 Comm: syz.1.618 Not tainted syzkaller #0 [ 220.315622][ T6282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 220.317061][ T6282] Call trace: [ 220.317533][ T6282] dump_backtrace+0x0/0x43c [ 220.318206][ T6282] show_stack+0x2c/0x3c [ 220.318827][ T6282] __dump_stack+0x30/0x40 [ 220.319474][ T6282] dump_stack_lvl+0xf8/0x160 [ 220.320187][ T6282] dump_stack+0x1c/0x5c [ 220.320759][ T6282] sysfs_create_dir_ns+0x22c/0x24c [ 220.321471][ T6282] kobject_add_internal+0x590/0xc54 [ 220.322177][ T6282] kobject_init_and_add+0x118/0x17c [ 220.322903][ T6282] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.323579][ T6282] gfs2_fill_super+0xdac/0x19e0 [ 220.324237][ T6282] get_tree_bdev+0x358/0x544 [ 220.324835][ T6282] gfs2_get_tree+0x54/0x1b4 [ 220.325458][ T6282] vfs_get_tree+0x90/0x274 [ 220.326100][ T6282] do_new_mount+0x228/0x810 [ 220.326720][ T6282] path_mount+0x5b4/0x1000 [ 220.327350][ T6282] __arm64_sys_mount+0x514/0x5e4 [ 220.328052][ T6282] invoke_syscall+0x98/0x2b8 [ 220.328681][ T6282] el0_svc_common+0x138/0x258 [ 220.329387][ T6282] do_el0_svc+0x58/0x14c [ 220.330005][ T6282] el0_svc+0x78/0x1e0 [ 220.330564][ T6282] el0t_64_sync_handler+0xcc/0xe4 [ 220.331255][ T6282] el0t_64_sync+0x1a0/0x1a4 [ 220.333563][ T6282] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.335520][ T6282] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.478317][ T6284] loop1: detected capacity change from 0 to 32768 [ 220.487777][ T5025] Bluetooth: hci2: command 0x0409 tx timeout [ 220.537107][ T6284] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.538305][ T6284] CPU: 0 PID: 6284 Comm: syz.1.619 Not tainted syzkaller #0 [ 220.539366][ T6284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 220.540785][ T6284] Call trace: [ 220.541268][ T6284] dump_backtrace+0x0/0x43c [ 220.541928][ T6284] show_stack+0x2c/0x3c [ 220.542530][ T6284] __dump_stack+0x30/0x40 [ 220.543115][ T6284] dump_stack_lvl+0xf8/0x160 [ 220.543742][ T6284] dump_stack+0x1c/0x5c [ 220.544370][ T6284] sysfs_create_dir_ns+0x22c/0x24c [ 220.545134][ T6284] kobject_add_internal+0x590/0xc54 [ 220.545912][ T6284] kobject_init_and_add+0x118/0x17c [ 220.546637][ T6284] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.547347][ T6284] gfs2_fill_super+0xdac/0x19e0 [ 220.548124][ T6284] get_tree_bdev+0x358/0x544 [ 220.548794][ T6284] gfs2_get_tree+0x54/0x1b4 [ 220.549395][ T6284] vfs_get_tree+0x90/0x274 [ 220.549981][ T6284] do_new_mount+0x228/0x810 [ 220.550607][ T6284] path_mount+0x5b4/0x1000 [ 220.551233][ T6284] __arm64_sys_mount+0x514/0x5e4 [ 220.551970][ T6284] invoke_syscall+0x98/0x2b8 [ 220.552647][ T6284] el0_svc_common+0x138/0x258 [ 220.553300][ T6284] do_el0_svc+0x58/0x14c [ 220.553942][ T6284] el0_svc+0x78/0x1e0 [ 220.554466][ T6284] el0t_64_sync_handler+0xcc/0xe4 [ 220.555134][ T6284] el0t_64_sync+0x1a0/0x1a4 [ 220.558172][ T6284] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.560261][ T4652] device hsr_slave_0 left promiscuous mode [ 220.560324][ T6284] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.599602][ T4652] device hsr_slave_1 left promiscuous mode [ 220.667417][ T4652] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 220.668571][ T4652] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 220.670357][ T4652] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 220.671387][ T4652] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 220.672641][ T4652] device bridge_slave_1 left promiscuous mode [ 220.673637][ T4652] bridge0: port 2(bridge_slave_1) entered disabled state [ 220.696535][ T6286] loop1: detected capacity change from 0 to 32768 [ 220.717595][ T4652] device bridge_slave_0 left promiscuous mode [ 220.718605][ T4652] bridge0: port 1(bridge_slave_0) entered disabled state [ 220.738039][ T6286] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.739179][ T6286] CPU: 0 PID: 6286 Comm: syz.1.620 Not tainted syzkaller #0 [ 220.740218][ T6286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 220.741658][ T6286] Call trace: [ 220.742116][ T6286] dump_backtrace+0x0/0x43c [ 220.742765][ T6286] show_stack+0x2c/0x3c [ 220.743351][ T6286] __dump_stack+0x30/0x40 [ 220.743952][ T6286] dump_stack_lvl+0xf8/0x160 [ 220.744554][ T6286] dump_stack+0x1c/0x5c [ 220.745106][ T6286] sysfs_create_dir_ns+0x22c/0x24c [ 220.745820][ T6286] kobject_add_internal+0x590/0xc54 [ 220.746498][ T6286] kobject_init_and_add+0x118/0x17c [ 220.747234][ T6286] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.747946][ T6286] gfs2_fill_super+0xdac/0x19e0 [ 220.748643][ T6286] get_tree_bdev+0x358/0x544 [ 220.749287][ T6286] gfs2_get_tree+0x54/0x1b4 [ 220.749935][ T6286] vfs_get_tree+0x90/0x274 [ 220.750657][ T6286] do_new_mount+0x228/0x810 [ 220.751340][ T6286] path_mount+0x5b4/0x1000 [ 220.751973][ T6286] __arm64_sys_mount+0x514/0x5e4 [ 220.752602][ T6286] invoke_syscall+0x98/0x2b8 [ 220.753249][ T6286] el0_svc_common+0x138/0x258 [ 220.753848][ T6286] do_el0_svc+0x58/0x14c [ 220.754444][ T6286] el0_svc+0x78/0x1e0 [ 220.755020][ T6286] el0t_64_sync_handler+0xcc/0xe4 [ 220.755703][ T6286] el0t_64_sync+0x1a0/0x1a4 [ 220.756881][ T6286] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.758909][ T6286] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.857230][ T4652] device veth1_macvtap left promiscuous mode [ 220.858317][ T4652] device veth0_macvtap left promiscuous mode [ 220.859271][ T4652] device veth1_vlan left promiscuous mode [ 220.860148][ T4652] device veth0_vlan left promiscuous mode [ 220.896559][ T6288] loop1: detected capacity change from 0 to 32768 [ 220.904567][ T6288] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.905664][ T6288] CPU: 0 PID: 6288 Comm: syz.1.621 Not tainted syzkaller #0 [ 220.906727][ T6288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 220.908164][ T6288] Call trace: [ 220.908643][ T6288] dump_backtrace+0x0/0x43c [ 220.909311][ T6288] show_stack+0x2c/0x3c [ 220.909889][ T6288] __dump_stack+0x30/0x40 [ 220.910520][ T6288] dump_stack_lvl+0xf8/0x160 [ 220.911143][ T6288] dump_stack+0x1c/0x5c [ 220.911716][ T6288] sysfs_create_dir_ns+0x22c/0x24c [ 220.912429][ T6288] kobject_add_internal+0x590/0xc54 [ 220.913173][ T6288] kobject_init_and_add+0x118/0x17c [ 220.913934][ T6288] gfs2_sys_fs_add+0x1dc/0x3d8 [ 220.914601][ T6288] gfs2_fill_super+0xdac/0x19e0 [ 220.915275][ T6288] get_tree_bdev+0x358/0x544 [ 220.915933][ T6288] gfs2_get_tree+0x54/0x1b4 [ 220.916597][ T6288] vfs_get_tree+0x90/0x274 [ 220.917222][ T6288] do_new_mount+0x228/0x810 [ 220.917823][ T6288] path_mount+0x5b4/0x1000 [ 220.918476][ T6288] __arm64_sys_mount+0x514/0x5e4 [ 220.919189][ T6288] invoke_syscall+0x98/0x2b8 [ 220.919851][ T6288] el0_svc_common+0x138/0x258 [ 220.920523][ T6288] do_el0_svc+0x58/0x14c [ 220.921132][ T6288] el0_svc+0x78/0x1e0 [ 220.921704][ T6288] el0t_64_sync_handler+0xcc/0xe4 [ 220.922441][ T6288] el0t_64_sync+0x1a0/0x1a4 [ 220.926524][ T6288] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.928603][ T6288] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.989438][ T4652] team0 (unregistering): Port device team_slave_1 removed [ 221.000817][ T4652] team0 (unregistering): Port device team_slave_0 removed [ 221.011280][ T4652] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 221.040794][ T4652] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 221.066159][ T6290] loop1: detected capacity change from 0 to 32768 [ 221.121902][ T6290] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.123169][ T6290] CPU: 1 PID: 6290 Comm: syz.1.622 Not tainted syzkaller #0 [ 221.124430][ T6290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 221.125990][ T6290] Call trace: [ 221.126478][ T6290] dump_backtrace+0x0/0x43c [ 221.127225][ T6290] show_stack+0x2c/0x3c [ 221.127884][ T6290] __dump_stack+0x30/0x40 [ 221.128587][ T6290] dump_stack_lvl+0xf8/0x160 [ 221.129257][ T6290] dump_stack+0x1c/0x5c [ 221.129917][ T6290] sysfs_create_dir_ns+0x22c/0x24c [ 221.130678][ T6290] kobject_add_internal+0x590/0xc54 [ 221.131467][ T6290] kobject_init_and_add+0x118/0x17c [ 221.132257][ T6290] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.132983][ T6290] gfs2_fill_super+0xdac/0x19e0 [ 221.133658][ T6290] get_tree_bdev+0x358/0x544 [ 221.134328][ T6290] gfs2_get_tree+0x54/0x1b4 [ 221.134987][ T6290] vfs_get_tree+0x90/0x274 [ 221.135612][ T6290] do_new_mount+0x228/0x810 [ 221.136242][ T6290] path_mount+0x5b4/0x1000 [ 221.136841][ T6290] __arm64_sys_mount+0x514/0x5e4 [ 221.137522][ T6290] invoke_syscall+0x98/0x2b8 [ 221.138173][ T6290] el0_svc_common+0x138/0x258 [ 221.138856][ T6290] do_el0_svc+0x58/0x14c [ 221.139596][ T6290] el0_svc+0x78/0x1e0 [ 221.140208][ T6290] el0t_64_sync_handler+0xcc/0xe4 [ 221.140987][ T6290] el0t_64_sync+0x1a0/0x1a4 [ 221.145785][ T4652] bond0 (unregistering): Released all slaves [ 221.151251][ T6290] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.153337][ T6290] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.293608][ T6292] loop1: detected capacity change from 0 to 32768 [ 221.322377][ T6292] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.323487][ T6292] CPU: 1 PID: 6292 Comm: syz.1.623 Not tainted syzkaller #0 [ 221.324632][ T6292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 221.326282][ T6292] Call trace: [ 221.326750][ T6292] dump_backtrace+0x0/0x43c [ 221.327418][ T6292] show_stack+0x2c/0x3c [ 221.328028][ T6292] __dump_stack+0x30/0x40 [ 221.328662][ T6292] dump_stack_lvl+0xf8/0x160 [ 221.329344][ T6292] dump_stack+0x1c/0x5c [ 221.330033][ T6292] sysfs_create_dir_ns+0x22c/0x24c [ 221.330794][ T6292] kobject_add_internal+0x590/0xc54 [ 221.331552][ T6292] kobject_init_and_add+0x118/0x17c [ 221.332411][ T6292] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.333148][ T6292] gfs2_fill_super+0xdac/0x19e0 [ 221.333927][ T6292] get_tree_bdev+0x358/0x544 [ 221.334641][ T6292] gfs2_get_tree+0x54/0x1b4 [ 221.335323][ T6292] vfs_get_tree+0x90/0x274 [ 221.335911][ T6292] do_new_mount+0x228/0x810 [ 221.336544][ T6292] path_mount+0x5b4/0x1000 [ 221.337139][ T6292] __arm64_sys_mount+0x514/0x5e4 [ 221.337883][ T6292] invoke_syscall+0x98/0x2b8 [ 221.338546][ T6292] el0_svc_common+0x138/0x258 [ 221.339249][ T6292] do_el0_svc+0x58/0x14c [ 221.339973][ T6292] el0_svc+0x78/0x1e0 [ 221.340528][ T6292] el0t_64_sync_handler+0xcc/0xe4 [ 221.341253][ T6292] el0t_64_sync+0x1a0/0x1a4 [ 221.342826][ T6292] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.344597][ T6292] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.479115][ T6294] loop1: detected capacity change from 0 to 32768 [ 221.518218][ T6294] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.519340][ T6294] CPU: 1 PID: 6294 Comm: syz.1.624 Not tainted syzkaller #0 [ 221.520438][ T6294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 221.521840][ T6294] Call trace: [ 221.522344][ T6294] dump_backtrace+0x0/0x43c [ 221.522981][ T6294] show_stack+0x2c/0x3c [ 221.523551][ T6294] __dump_stack+0x30/0x40 [ 221.524148][ T6294] dump_stack_lvl+0xf8/0x160 [ 221.524785][ T6294] dump_stack+0x1c/0x5c [ 221.525350][ T6294] sysfs_create_dir_ns+0x22c/0x24c [ 221.526028][ T6294] kobject_add_internal+0x590/0xc54 [ 221.526738][ T6294] kobject_init_and_add+0x118/0x17c [ 221.527474][ T6294] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.528144][ T6294] gfs2_fill_super+0xdac/0x19e0 [ 221.528830][ T6294] get_tree_bdev+0x358/0x544 [ 221.529542][ T6294] gfs2_get_tree+0x54/0x1b4 [ 221.530228][ T6294] vfs_get_tree+0x90/0x274 [ 221.530879][ T6294] do_new_mount+0x228/0x810 [ 221.531479][ T6294] path_mount+0x5b4/0x1000 [ 221.532106][ T6294] __arm64_sys_mount+0x514/0x5e4 [ 221.532795][ T6294] invoke_syscall+0x98/0x2b8 [ 221.533424][ T6294] el0_svc_common+0x138/0x258 [ 221.534039][ T6294] do_el0_svc+0x58/0x14c [ 221.534716][ T6294] el0_svc+0x78/0x1e0 [ 221.535350][ T6294] el0t_64_sync_handler+0xcc/0xe4 [ 221.536117][ T6294] el0t_64_sync+0x1a0/0x1a4 [ 221.536993][ T6294] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.538840][ T6294] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.728361][ T6296] loop1: detected capacity change from 0 to 32768 [ 221.771517][ T6296] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.772602][ T6296] CPU: 0 PID: 6296 Comm: syz.1.625 Not tainted syzkaller #0 [ 221.773613][ T6296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 221.775022][ T6296] Call trace: [ 221.775452][ T6296] dump_backtrace+0x0/0x43c [ 221.776049][ T6296] show_stack+0x2c/0x3c [ 221.776630][ T6296] __dump_stack+0x30/0x40 [ 221.777240][ T6296] dump_stack_lvl+0xf8/0x160 [ 221.777874][ T6296] dump_stack+0x1c/0x5c [ 221.778458][ T6296] sysfs_create_dir_ns+0x22c/0x24c [ 221.779167][ T6296] kobject_add_internal+0x590/0xc54 [ 221.779881][ T6296] kobject_init_and_add+0x118/0x17c [ 221.780609][ T6296] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.781291][ T6296] gfs2_fill_super+0xdac/0x19e0 [ 221.781959][ T6296] get_tree_bdev+0x358/0x544 [ 221.782663][ T6296] gfs2_get_tree+0x54/0x1b4 [ 221.783276][ T6296] vfs_get_tree+0x90/0x274 [ 221.783897][ T6296] do_new_mount+0x228/0x810 [ 221.784499][ T6296] path_mount+0x5b4/0x1000 [ 221.785149][ T6296] __arm64_sys_mount+0x514/0x5e4 [ 221.785857][ T6296] invoke_syscall+0x98/0x2b8 [ 221.786460][ T6296] el0_svc_common+0x138/0x258 [ 221.787071][ T6296] do_el0_svc+0x58/0x14c [ 221.787792][ T6296] el0_svc+0x78/0x1e0 [ 221.788402][ T6296] el0t_64_sync_handler+0xcc/0xe4 [ 221.789134][ T6296] el0t_64_sync+0x1a0/0x1a4 [ 221.791296][ T6296] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.793173][ T6296] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.933789][ T6298] loop1: detected capacity change from 0 to 32768 [ 221.941380][ T6298] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.942527][ T6298] CPU: 1 PID: 6298 Comm: syz.1.626 Not tainted syzkaller #0 [ 221.943597][ T6298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 221.945054][ T6298] Call trace: [ 221.945529][ T6298] dump_backtrace+0x0/0x43c [ 221.946246][ T6298] show_stack+0x2c/0x3c [ 221.946853][ T6298] __dump_stack+0x30/0x40 [ 221.947552][ T6298] dump_stack_lvl+0xf8/0x160 [ 221.948210][ T6298] dump_stack+0x1c/0x5c [ 221.948792][ T6298] sysfs_create_dir_ns+0x22c/0x24c [ 221.949549][ T6298] kobject_add_internal+0x590/0xc54 [ 221.950278][ T6298] kobject_init_and_add+0x118/0x17c [ 221.951015][ T6298] gfs2_sys_fs_add+0x1dc/0x3d8 [ 221.951695][ T6298] gfs2_fill_super+0xdac/0x19e0 [ 221.952372][ T6298] get_tree_bdev+0x358/0x544 [ 221.952999][ T6298] gfs2_get_tree+0x54/0x1b4 [ 221.953620][ T6298] vfs_get_tree+0x90/0x274 [ 221.954224][ T6298] do_new_mount+0x228/0x810 [ 221.954834][ T6298] path_mount+0x5b4/0x1000 [ 221.955452][ T6298] __arm64_sys_mount+0x514/0x5e4 [ 221.956098][ T6298] invoke_syscall+0x98/0x2b8 [ 221.956743][ T6298] el0_svc_common+0x138/0x258 [ 221.957354][ T6298] do_el0_svc+0x58/0x14c [ 221.957917][ T6298] el0_svc+0x78/0x1e0 [ 221.958482][ T6298] el0t_64_sync_handler+0xcc/0xe4 [ 221.959162][ T6298] el0t_64_sync+0x1a0/0x1a4 [ 221.959962][ T6298] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.961788][ T6298] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.094155][ T6300] loop1: detected capacity change from 0 to 32768 [ 222.138481][ T6300] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.139716][ T6300] CPU: 0 PID: 6300 Comm: syz.1.627 Not tainted syzkaller #0 [ 222.140818][ T6300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 222.142392][ T6300] Call trace: [ 222.142876][ T6300] dump_backtrace+0x0/0x43c [ 222.143532][ T6300] show_stack+0x2c/0x3c [ 222.144186][ T6300] __dump_stack+0x30/0x40 [ 222.144855][ T6300] dump_stack_lvl+0xf8/0x160 [ 222.145548][ T6300] dump_stack+0x1c/0x5c [ 222.146175][ T6300] sysfs_create_dir_ns+0x22c/0x24c [ 222.147026][ T6300] kobject_add_internal+0x590/0xc54 [ 222.147822][ T6300] kobject_init_and_add+0x118/0x17c [ 222.148610][ T6300] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.149297][ T6300] gfs2_fill_super+0xdac/0x19e0 [ 222.149985][ T6300] get_tree_bdev+0x358/0x544 [ 222.150660][ T6300] gfs2_get_tree+0x54/0x1b4 [ 222.151286][ T6300] vfs_get_tree+0x90/0x274 [ 222.151897][ T6300] do_new_mount+0x228/0x810 [ 222.152539][ T6300] path_mount+0x5b4/0x1000 [ 222.153156][ T6300] __arm64_sys_mount+0x514/0x5e4 [ 222.153824][ T6300] invoke_syscall+0x98/0x2b8 [ 222.154515][ T6300] el0_svc_common+0x138/0x258 [ 222.155176][ T6300] do_el0_svc+0x58/0x14c [ 222.155793][ T6300] el0_svc+0x78/0x1e0 [ 222.156355][ T6300] el0t_64_sync_handler+0xcc/0xe4 [ 222.157102][ T6300] el0t_64_sync+0x1a0/0x1a4 [ 222.161112][ T6300] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.162977][ T6300] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.295124][ T6302] loop1: detected capacity change from 0 to 32768 [ 222.382801][ T6302] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.383996][ T6302] CPU: 1 PID: 6302 Comm: syz.1.628 Not tainted syzkaller #0 [ 222.385073][ T6302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 222.386549][ T6302] Call trace: [ 222.387017][ T6302] dump_backtrace+0x0/0x43c [ 222.387707][ T6302] show_stack+0x2c/0x3c [ 222.388405][ T6302] __dump_stack+0x30/0x40 [ 222.389102][ T6302] dump_stack_lvl+0xf8/0x160 [ 222.389820][ T6302] dump_stack+0x1c/0x5c [ 222.390445][ T6302] sysfs_create_dir_ns+0x22c/0x24c [ 222.391198][ T6302] kobject_add_internal+0x590/0xc54 [ 222.391982][ T6302] kobject_init_and_add+0x118/0x17c [ 222.392737][ T6302] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.393415][ T6302] gfs2_fill_super+0xdac/0x19e0 [ 222.394129][ T6302] get_tree_bdev+0x358/0x544 [ 222.394772][ T6302] gfs2_get_tree+0x54/0x1b4 [ 222.395394][ T6302] vfs_get_tree+0x90/0x274 [ 222.396019][ T6302] do_new_mount+0x228/0x810 [ 222.396637][ T6302] path_mount+0x5b4/0x1000 [ 222.397263][ T6302] __arm64_sys_mount+0x514/0x5e4 [ 222.397947][ T6302] invoke_syscall+0x98/0x2b8 [ 222.398611][ T6302] el0_svc_common+0x138/0x258 [ 222.399316][ T6302] do_el0_svc+0x58/0x14c [ 222.399916][ T6302] el0_svc+0x78/0x1e0 [ 222.400469][ T6302] el0t_64_sync_handler+0xcc/0xe4 [ 222.401198][ T6302] el0t_64_sync+0x1a0/0x1a4 [ 222.427130][ T6302] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.428973][ T6302] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.567104][ T4227] Bluetooth: hci2: command 0x041b tx timeout [ 222.573136][ T6304] loop1: detected capacity change from 0 to 32768 [ 222.623446][ T6304] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.624620][ T6304] CPU: 1 PID: 6304 Comm: syz.1.629 Not tainted syzkaller #0 [ 222.625710][ T6304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 222.627183][ T6304] Call trace: [ 222.627688][ T6304] dump_backtrace+0x0/0x43c [ 222.628372][ T6304] show_stack+0x2c/0x3c [ 222.628971][ T6304] __dump_stack+0x30/0x40 [ 222.629606][ T6304] dump_stack_lvl+0xf8/0x160 [ 222.630275][ T6304] dump_stack+0x1c/0x5c [ 222.630910][ T6304] sysfs_create_dir_ns+0x22c/0x24c [ 222.631636][ T6304] kobject_add_internal+0x590/0xc54 [ 222.632365][ T6304] kobject_init_and_add+0x118/0x17c [ 222.633102][ T6304] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.633765][ T6304] gfs2_fill_super+0xdac/0x19e0 [ 222.634429][ T6304] get_tree_bdev+0x358/0x544 [ 222.635040][ T6304] gfs2_get_tree+0x54/0x1b4 [ 222.635652][ T6304] vfs_get_tree+0x90/0x274 [ 222.636253][ T6304] do_new_mount+0x228/0x810 [ 222.636899][ T6304] path_mount+0x5b4/0x1000 [ 222.637515][ T6304] __arm64_sys_mount+0x514/0x5e4 [ 222.638175][ T6304] invoke_syscall+0x98/0x2b8 [ 222.638773][ T6304] el0_svc_common+0x138/0x258 [ 222.639400][ T6304] do_el0_svc+0x58/0x14c [ 222.639991][ T6304] el0_svc+0x78/0x1e0 [ 222.640555][ T6304] el0t_64_sync_handler+0xcc/0xe4 [ 222.641261][ T6304] el0t_64_sync+0x1a0/0x1a4 [ 222.643663][ T6304] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.645570][ T6304] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.773926][ T6306] loop1: detected capacity change from 0 to 32768 [ 222.862299][ T6306] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.863449][ T6306] CPU: 1 PID: 6306 Comm: syz.1.630 Not tainted syzkaller #0 [ 222.864462][ T6306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 222.865869][ T6306] Call trace: [ 222.866303][ T6306] dump_backtrace+0x0/0x43c [ 222.866948][ T6306] show_stack+0x2c/0x3c [ 222.867537][ T6306] __dump_stack+0x30/0x40 [ 222.868203][ T6306] dump_stack_lvl+0xf8/0x160 [ 222.868814][ T6306] dump_stack+0x1c/0x5c [ 222.869415][ T6306] sysfs_create_dir_ns+0x22c/0x24c [ 222.870115][ T6306] kobject_add_internal+0x590/0xc54 [ 222.870852][ T6306] kobject_init_and_add+0x118/0x17c [ 222.871560][ T6306] gfs2_sys_fs_add+0x1dc/0x3d8 [ 222.872257][ T6306] gfs2_fill_super+0xdac/0x19e0 [ 222.872951][ T6306] get_tree_bdev+0x358/0x544 [ 222.873605][ T6306] gfs2_get_tree+0x54/0x1b4 [ 222.874284][ T6306] vfs_get_tree+0x90/0x274 [ 222.874897][ T6306] do_new_mount+0x228/0x810 [ 222.875529][ T6306] path_mount+0x5b4/0x1000 [ 222.876096][ T6306] __arm64_sys_mount+0x514/0x5e4 [ 222.876759][ T6306] invoke_syscall+0x98/0x2b8 [ 222.877382][ T6306] el0_svc_common+0x138/0x258 [ 222.878039][ T6306] do_el0_svc+0x58/0x14c [ 222.878660][ T6306] el0_svc+0x78/0x1e0 [ 222.879248][ T6306] el0t_64_sync_handler+0xcc/0xe4 [ 222.880013][ T6306] el0t_64_sync+0x1a0/0x1a4 [ 222.882533][ T6306] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.884500][ T6306] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.019572][ T6308] loop1: detected capacity change from 0 to 32768 [ 223.023975][ T6308] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.025298][ T6308] CPU: 1 PID: 6308 Comm: syz.1.631 Not tainted syzkaller #0 [ 223.026360][ T6308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 223.027787][ T6308] Call trace: [ 223.028362][ T6308] dump_backtrace+0x0/0x43c [ 223.029105][ T6308] show_stack+0x2c/0x3c [ 223.029783][ T6308] __dump_stack+0x30/0x40 [ 223.030475][ T6308] dump_stack_lvl+0xf8/0x160 [ 223.031193][ T6308] dump_stack+0x1c/0x5c [ 223.031896][ T6308] sysfs_create_dir_ns+0x22c/0x24c [ 223.032695][ T6308] kobject_add_internal+0x590/0xc54 [ 223.033506][ T6308] kobject_init_and_add+0x118/0x17c [ 223.034348][ T6308] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.035058][ T6308] gfs2_fill_super+0xdac/0x19e0 [ 223.035806][ T6308] get_tree_bdev+0x358/0x544 [ 223.036491][ T6308] gfs2_get_tree+0x54/0x1b4 [ 223.037165][ T6308] vfs_get_tree+0x90/0x274 [ 223.037829][ T6308] do_new_mount+0x228/0x810 [ 223.038479][ T6308] path_mount+0x5b4/0x1000 [ 223.039140][ T6308] __arm64_sys_mount+0x514/0x5e4 [ 223.040043][ T6308] invoke_syscall+0x98/0x2b8 [ 223.040784][ T6308] el0_svc_common+0x138/0x258 [ 223.041543][ T6308] do_el0_svc+0x58/0x14c [ 223.042178][ T6308] el0_svc+0x78/0x1e0 [ 223.042775][ T6308] el0t_64_sync_handler+0xcc/0xe4 [ 223.043525][ T6308] el0t_64_sync+0x1a0/0x1a4 [ 223.044930][ T6308] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.046844][ T6308] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.179618][ T6310] loop1: detected capacity change from 0 to 32768 [ 223.218526][ T6310] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.219688][ T6310] CPU: 0 PID: 6310 Comm: syz.1.632 Not tainted syzkaller #0 [ 223.220799][ T6310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 223.222266][ T6310] Call trace: [ 223.222734][ T6310] dump_backtrace+0x0/0x43c [ 223.223432][ T6310] show_stack+0x2c/0x3c [ 223.224009][ T6310] __dump_stack+0x30/0x40 [ 223.224589][ T6310] dump_stack_lvl+0xf8/0x160 [ 223.225220][ T6310] dump_stack+0x1c/0x5c [ 223.225816][ T6310] sysfs_create_dir_ns+0x22c/0x24c [ 223.226519][ T6310] kobject_add_internal+0x590/0xc54 [ 223.227227][ T6310] kobject_init_and_add+0x118/0x17c [ 223.227921][ T6310] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.228598][ T6310] gfs2_fill_super+0xdac/0x19e0 [ 223.229274][ T6310] get_tree_bdev+0x358/0x544 [ 223.229894][ T6310] gfs2_get_tree+0x54/0x1b4 [ 223.230529][ T6310] vfs_get_tree+0x90/0x274 [ 223.231108][ T6310] do_new_mount+0x228/0x810 [ 223.231744][ T6310] path_mount+0x5b4/0x1000 [ 223.232401][ T6310] __arm64_sys_mount+0x514/0x5e4 [ 223.233108][ T6310] invoke_syscall+0x98/0x2b8 [ 223.233774][ T6310] el0_svc_common+0x138/0x258 [ 223.234418][ T6310] do_el0_svc+0x58/0x14c [ 223.235017][ T6310] el0_svc+0x78/0x1e0 [ 223.235586][ T6310] el0t_64_sync_handler+0xcc/0xe4 [ 223.236289][ T6310] el0t_64_sync+0x1a0/0x1a4 [ 223.238315][ T6310] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.240028][ T6310] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.366833][ T6312] loop1: detected capacity change from 0 to 32768 [ 223.418293][ T6312] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.419483][ T6312] CPU: 0 PID: 6312 Comm: syz.1.633 Not tainted syzkaller #0 [ 223.420612][ T6312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 223.422198][ T6312] Call trace: [ 223.422692][ T6312] dump_backtrace+0x0/0x43c [ 223.423315][ T6312] show_stack+0x2c/0x3c [ 223.423846][ T6312] __dump_stack+0x30/0x40 [ 223.424476][ T6312] dump_stack_lvl+0xf8/0x160 [ 223.425080][ T6312] dump_stack+0x1c/0x5c [ 223.425639][ T6312] sysfs_create_dir_ns+0x22c/0x24c [ 223.426310][ T6312] kobject_add_internal+0x590/0xc54 [ 223.427013][ T6312] kobject_init_and_add+0x118/0x17c [ 223.427732][ T6312] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.428394][ T6312] gfs2_fill_super+0xdac/0x19e0 [ 223.429036][ T6312] get_tree_bdev+0x358/0x544 [ 223.429707][ T6312] gfs2_get_tree+0x54/0x1b4 [ 223.430356][ T6312] vfs_get_tree+0x90/0x274 [ 223.430998][ T6312] do_new_mount+0x228/0x810 [ 223.431677][ T6312] path_mount+0x5b4/0x1000 [ 223.432297][ T6312] __arm64_sys_mount+0x514/0x5e4 [ 223.432984][ T6312] invoke_syscall+0x98/0x2b8 [ 223.433711][ T6312] el0_svc_common+0x138/0x258 [ 223.434375][ T6312] do_el0_svc+0x58/0x14c [ 223.434999][ T6312] el0_svc+0x78/0x1e0 [ 223.435635][ T6312] el0t_64_sync_handler+0xcc/0xe4 [ 223.436361][ T6312] el0t_64_sync+0x1a0/0x1a4 [ 223.438622][ T6312] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.440381][ T6312] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.576097][ T6314] loop1: detected capacity change from 0 to 32768 [ 223.669129][ T6314] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.670262][ T6314] CPU: 1 PID: 6314 Comm: syz.1.634 Not tainted syzkaller #0 [ 223.671327][ T6314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 223.672670][ T6314] Call trace: [ 223.673122][ T6314] dump_backtrace+0x0/0x43c [ 223.673759][ T6314] show_stack+0x2c/0x3c [ 223.674358][ T6314] __dump_stack+0x30/0x40 [ 223.674940][ T6314] dump_stack_lvl+0xf8/0x160 [ 223.675577][ T6314] dump_stack+0x1c/0x5c [ 223.676136][ T6314] sysfs_create_dir_ns+0x22c/0x24c [ 223.676821][ T6314] kobject_add_internal+0x590/0xc54 [ 223.677546][ T6314] kobject_init_and_add+0x118/0x17c [ 223.678271][ T6314] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.678946][ T6314] gfs2_fill_super+0xdac/0x19e0 [ 223.679602][ T6314] get_tree_bdev+0x358/0x544 [ 223.680206][ T6314] gfs2_get_tree+0x54/0x1b4 [ 223.680856][ T6314] vfs_get_tree+0x90/0x274 [ 223.681496][ T6314] do_new_mount+0x228/0x810 [ 223.682130][ T6314] path_mount+0x5b4/0x1000 [ 223.682758][ T6314] __arm64_sys_mount+0x514/0x5e4 [ 223.683482][ T6314] invoke_syscall+0x98/0x2b8 [ 223.684152][ T6314] el0_svc_common+0x138/0x258 [ 223.684817][ T6314] do_el0_svc+0x58/0x14c [ 223.685413][ T6314] el0_svc+0x78/0x1e0 [ 223.686001][ T6314] el0t_64_sync_handler+0xcc/0xe4 [ 223.686709][ T6314] el0t_64_sync+0x1a0/0x1a4 [ 223.688792][ T6314] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.690750][ T6314] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.822497][ T6316] loop1: detected capacity change from 0 to 32768 [ 223.868040][ T6316] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.869251][ T6316] CPU: 0 PID: 6316 Comm: syz.1.635 Not tainted syzkaller #0 [ 223.870454][ T6316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 223.872131][ T6316] Call trace: [ 223.872660][ T6316] dump_backtrace+0x0/0x43c [ 223.873388][ T6316] show_stack+0x2c/0x3c [ 223.874012][ T6316] __dump_stack+0x30/0x40 [ 223.874668][ T6316] dump_stack_lvl+0xf8/0x160 [ 223.875410][ T6316] dump_stack+0x1c/0x5c [ 223.876016][ T6316] sysfs_create_dir_ns+0x22c/0x24c [ 223.876753][ T6316] kobject_add_internal+0x590/0xc54 [ 223.877511][ T6316] kobject_init_and_add+0x118/0x17c [ 223.878231][ T6316] gfs2_sys_fs_add+0x1dc/0x3d8 [ 223.878904][ T6316] gfs2_fill_super+0xdac/0x19e0 [ 223.879647][ T6316] get_tree_bdev+0x358/0x544 [ 223.880317][ T6316] gfs2_get_tree+0x54/0x1b4 [ 223.880958][ T6316] vfs_get_tree+0x90/0x274 [ 223.881576][ T6316] do_new_mount+0x228/0x810 [ 223.882191][ T6316] path_mount+0x5b4/0x1000 [ 223.882811][ T6316] __arm64_sys_mount+0x514/0x5e4 [ 223.883527][ T6316] invoke_syscall+0x98/0x2b8 [ 223.884301][ T6316] el0_svc_common+0x138/0x258 [ 223.885034][ T6316] do_el0_svc+0x58/0x14c [ 223.885718][ T6316] el0_svc+0x78/0x1e0 [ 223.886337][ T6316] el0t_64_sync_handler+0xcc/0xe4 [ 223.887047][ T6316] el0t_64_sync+0x1a0/0x1a4 [ 223.889495][ T6316] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.891374][ T6316] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.019063][ T6318] loop1: detected capacity change from 0 to 32768 [ 224.061555][ T6318] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.062725][ T6318] CPU: 0 PID: 6318 Comm: syz.1.636 Not tainted syzkaller #0 [ 224.063834][ T6318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.065297][ T6318] Call trace: [ 224.065745][ T6318] dump_backtrace+0x0/0x43c [ 224.066386][ T6318] show_stack+0x2c/0x3c [ 224.066992][ T6318] __dump_stack+0x30/0x40 [ 224.067628][ T6318] dump_stack_lvl+0xf8/0x160 [ 224.068297][ T6318] dump_stack+0x1c/0x5c [ 224.068940][ T6318] sysfs_create_dir_ns+0x22c/0x24c [ 224.069656][ T6318] kobject_add_internal+0x590/0xc54 [ 224.070421][ T6318] kobject_init_and_add+0x118/0x17c [ 224.071217][ T6318] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.071913][ T6318] gfs2_fill_super+0xdac/0x19e0 [ 224.072661][ T6318] get_tree_bdev+0x358/0x544 [ 224.073320][ T6318] gfs2_get_tree+0x54/0x1b4 [ 224.073999][ T6318] vfs_get_tree+0x90/0x274 [ 224.074617][ T6318] do_new_mount+0x228/0x810 [ 224.075288][ T6318] path_mount+0x5b4/0x1000 [ 224.075917][ T6318] __arm64_sys_mount+0x514/0x5e4 [ 224.076621][ T6318] invoke_syscall+0x98/0x2b8 [ 224.077256][ T6318] el0_svc_common+0x138/0x258 [ 224.077964][ T6318] do_el0_svc+0x58/0x14c [ 224.078576][ T6318] el0_svc+0x78/0x1e0 [ 224.079172][ T6318] el0t_64_sync_handler+0xcc/0xe4 [ 224.079895][ T6318] el0t_64_sync+0x1a0/0x1a4 [ 224.081998][ T6318] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.083837][ T6318] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.219844][ T6320] loop1: detected capacity change from 0 to 32768 [ 224.261189][ T6320] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.262432][ T6320] CPU: 0 PID: 6320 Comm: syz.1.637 Not tainted syzkaller #0 [ 224.263440][ T6320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.264868][ T6320] Call trace: [ 224.265305][ T6320] dump_backtrace+0x0/0x43c [ 224.265971][ T6320] show_stack+0x2c/0x3c [ 224.266557][ T6320] __dump_stack+0x30/0x40 [ 224.267236][ T6320] dump_stack_lvl+0xf8/0x160 [ 224.267880][ T6320] dump_stack+0x1c/0x5c [ 224.268459][ T6320] sysfs_create_dir_ns+0x22c/0x24c [ 224.269167][ T6320] kobject_add_internal+0x590/0xc54 [ 224.269944][ T6320] kobject_init_and_add+0x118/0x17c [ 224.270666][ T6320] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.271301][ T6320] gfs2_fill_super+0xdac/0x19e0 [ 224.271960][ T6320] get_tree_bdev+0x358/0x544 [ 224.272553][ T6320] gfs2_get_tree+0x54/0x1b4 [ 224.273131][ T6320] vfs_get_tree+0x90/0x274 [ 224.273743][ T6320] do_new_mount+0x228/0x810 [ 224.274329][ T6320] path_mount+0x5b4/0x1000 [ 224.274934][ T6320] __arm64_sys_mount+0x514/0x5e4 [ 224.275611][ T6320] invoke_syscall+0x98/0x2b8 [ 224.276259][ T6320] el0_svc_common+0x138/0x258 [ 224.276969][ T6320] do_el0_svc+0x58/0x14c [ 224.277575][ T6320] el0_svc+0x78/0x1e0 [ 224.278136][ T6320] el0t_64_sync_handler+0xcc/0xe4 [ 224.278849][ T6320] el0t_64_sync+0x1a0/0x1a4 [ 224.281011][ T6320] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.282947][ T6320] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.479413][ T6322] loop1: detected capacity change from 0 to 32768 [ 224.522672][ T6322] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.523895][ T6322] CPU: 1 PID: 6322 Comm: syz.1.638 Not tainted syzkaller #0 [ 224.525011][ T6322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.526477][ T6322] Call trace: [ 224.526945][ T6322] dump_backtrace+0x0/0x43c [ 224.527632][ T6322] show_stack+0x2c/0x3c [ 224.528238][ T6322] __dump_stack+0x30/0x40 [ 224.528846][ T6322] dump_stack_lvl+0xf8/0x160 [ 224.529487][ T6322] dump_stack+0x1c/0x5c [ 224.530065][ T6322] sysfs_create_dir_ns+0x22c/0x24c [ 224.530802][ T6322] kobject_add_internal+0x590/0xc54 [ 224.531535][ T6322] kobject_init_and_add+0x118/0x17c [ 224.532296][ T6322] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.532979][ T6322] gfs2_fill_super+0xdac/0x19e0 [ 224.533671][ T6322] get_tree_bdev+0x358/0x544 [ 224.534365][ T6322] gfs2_get_tree+0x54/0x1b4 [ 224.535042][ T6322] vfs_get_tree+0x90/0x274 [ 224.535707][ T6322] do_new_mount+0x228/0x810 [ 224.536362][ T6322] path_mount+0x5b4/0x1000 [ 224.537001][ T6322] __arm64_sys_mount+0x514/0x5e4 [ 224.537699][ T6322] invoke_syscall+0x98/0x2b8 [ 224.538369][ T6322] el0_svc_common+0x138/0x258 [ 224.539019][ T6322] do_el0_svc+0x58/0x14c [ 224.539714][ T6322] el0_svc+0x78/0x1e0 [ 224.540318][ T6322] el0t_64_sync_handler+0xcc/0xe4 [ 224.541094][ T6322] el0t_64_sync+0x1a0/0x1a4 [ 224.543888][ T6322] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.546048][ T6322] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.647063][ T5025] Bluetooth: hci2: command 0x040f tx timeout [ 224.676524][ T6324] loop1: detected capacity change from 0 to 32768 [ 224.732929][ T6324] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.734216][ T6324] CPU: 0 PID: 6324 Comm: syz.1.639 Not tainted syzkaller #0 [ 224.735213][ T6324] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.736644][ T6324] Call trace: [ 224.737108][ T6324] dump_backtrace+0x0/0x43c [ 224.737787][ T6324] show_stack+0x2c/0x3c [ 224.738461][ T6324] __dump_stack+0x30/0x40 [ 224.739070][ T6324] dump_stack_lvl+0xf8/0x160 [ 224.739707][ T6324] dump_stack+0x1c/0x5c [ 224.740265][ T6324] sysfs_create_dir_ns+0x22c/0x24c [ 224.740968][ T6324] kobject_add_internal+0x590/0xc54 [ 224.741658][ T6324] kobject_init_and_add+0x118/0x17c [ 224.742378][ T6324] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.743062][ T6324] gfs2_fill_super+0xdac/0x19e0 [ 224.743730][ T6324] get_tree_bdev+0x358/0x544 [ 224.744359][ T6324] gfs2_get_tree+0x54/0x1b4 [ 224.744963][ T6324] vfs_get_tree+0x90/0x274 [ 224.745577][ T6324] do_new_mount+0x228/0x810 [ 224.746222][ T6324] path_mount+0x5b4/0x1000 [ 224.746818][ T6324] __arm64_sys_mount+0x514/0x5e4 [ 224.747470][ T6324] invoke_syscall+0x98/0x2b8 [ 224.748097][ T6324] el0_svc_common+0x138/0x258 [ 224.748735][ T6324] do_el0_svc+0x58/0x14c [ 224.749358][ T6324] el0_svc+0x78/0x1e0 [ 224.749902][ T6324] el0t_64_sync_handler+0xcc/0xe4 [ 224.750564][ T6324] el0t_64_sync+0x1a0/0x1a4 [ 224.751713][ T6324] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.753730][ T6324] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.883164][ T6326] loop1: detected capacity change from 0 to 32768 [ 224.931214][ T6326] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.932246][ T6326] CPU: 0 PID: 6326 Comm: syz.1.640 Not tainted syzkaller #0 [ 224.933275][ T6326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 224.934668][ T6326] Call trace: [ 224.935130][ T6326] dump_backtrace+0x0/0x43c [ 224.935788][ T6326] show_stack+0x2c/0x3c [ 224.936420][ T6326] __dump_stack+0x30/0x40 [ 224.937029][ T6326] dump_stack_lvl+0xf8/0x160 [ 224.937720][ T6326] dump_stack+0x1c/0x5c [ 224.938351][ T6326] sysfs_create_dir_ns+0x22c/0x24c [ 224.939087][ T6326] kobject_add_internal+0x590/0xc54 [ 224.939828][ T6326] kobject_init_and_add+0x118/0x17c [ 224.940619][ T6326] gfs2_sys_fs_add+0x1dc/0x3d8 [ 224.941326][ T6326] gfs2_fill_super+0xdac/0x19e0 [ 224.942037][ T6326] get_tree_bdev+0x358/0x544 [ 224.942695][ T6326] gfs2_get_tree+0x54/0x1b4 [ 224.943312][ T6326] vfs_get_tree+0x90/0x274 [ 224.943912][ T6326] do_new_mount+0x228/0x810 [ 224.944501][ T6326] path_mount+0x5b4/0x1000 [ 224.945153][ T6326] __arm64_sys_mount+0x514/0x5e4 [ 224.945869][ T6326] invoke_syscall+0x98/0x2b8 [ 224.946492][ T6326] el0_svc_common+0x138/0x258 [ 224.947154][ T6326] do_el0_svc+0x58/0x14c [ 224.947765][ T6326] el0_svc+0x78/0x1e0 [ 224.948318][ T6326] el0t_64_sync_handler+0xcc/0xe4 [ 224.948983][ T6326] el0t_64_sync+0x1a0/0x1a4 [ 224.951047][ T6326] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.952917][ T6326] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:45 executed programs: 627 [ 225.191307][ T6328] loop1: detected capacity change from 0 to 32768 [ 225.232334][ T6328] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.233493][ T6328] CPU: 0 PID: 6328 Comm: syz.1.641 Not tainted syzkaller #0 [ 225.234510][ T6328] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 225.235940][ T6328] Call trace: [ 225.236418][ T6328] dump_backtrace+0x0/0x43c [ 225.237092][ T6328] show_stack+0x2c/0x3c [ 225.237691][ T6328] __dump_stack+0x30/0x40 [ 225.238321][ T6328] dump_stack_lvl+0xf8/0x160 [ 225.238954][ T6328] dump_stack+0x1c/0x5c [ 225.239581][ T6328] sysfs_create_dir_ns+0x22c/0x24c [ 225.240334][ T6328] kobject_add_internal+0x590/0xc54 [ 225.241121][ T6328] kobject_init_and_add+0x118/0x17c [ 225.241835][ T6328] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.242534][ T6328] gfs2_fill_super+0xdac/0x19e0 [ 225.243199][ T6328] get_tree_bdev+0x358/0x544 [ 225.243842][ T6328] gfs2_get_tree+0x54/0x1b4 [ 225.244455][ T6328] vfs_get_tree+0x90/0x274 [ 225.245081][ T6328] do_new_mount+0x228/0x810 [ 225.245734][ T6328] path_mount+0x5b4/0x1000 [ 225.246418][ T6328] __arm64_sys_mount+0x514/0x5e4 [ 225.247113][ T6328] invoke_syscall+0x98/0x2b8 [ 225.247772][ T6328] el0_svc_common+0x138/0x258 [ 225.248422][ T6328] do_el0_svc+0x58/0x14c [ 225.249010][ T6328] el0_svc+0x78/0x1e0 [ 225.249574][ T6328] el0t_64_sync_handler+0xcc/0xe4 [ 225.250356][ T6328] el0t_64_sync+0x1a0/0x1a4 [ 225.252817][ T6328] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.254806][ T6328] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.390116][ T6330] loop1: detected capacity change from 0 to 32768 [ 225.428276][ T6330] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.429442][ T6330] CPU: 0 PID: 6330 Comm: syz.1.642 Not tainted syzkaller #0 [ 225.430505][ T6330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 225.432009][ T6330] Call trace: [ 225.432511][ T6330] dump_backtrace+0x0/0x43c [ 225.433189][ T6330] show_stack+0x2c/0x3c [ 225.433768][ T6330] __dump_stack+0x30/0x40 [ 225.434348][ T6330] dump_stack_lvl+0xf8/0x160 [ 225.434958][ T6330] dump_stack+0x1c/0x5c [ 225.435526][ T6330] sysfs_create_dir_ns+0x22c/0x24c [ 225.436243][ T6330] kobject_add_internal+0x590/0xc54 [ 225.437037][ T6330] kobject_init_and_add+0x118/0x17c [ 225.437872][ T6330] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.438584][ T6330] gfs2_fill_super+0xdac/0x19e0 [ 225.439310][ T6330] get_tree_bdev+0x358/0x544 [ 225.440001][ T6330] gfs2_get_tree+0x54/0x1b4 [ 225.440649][ T6330] vfs_get_tree+0x90/0x274 [ 225.441360][ T6330] do_new_mount+0x228/0x810 [ 225.442047][ T6330] path_mount+0x5b4/0x1000 [ 225.442713][ T6330] __arm64_sys_mount+0x514/0x5e4 [ 225.443454][ T6330] invoke_syscall+0x98/0x2b8 [ 225.444133][ T6330] el0_svc_common+0x138/0x258 [ 225.444906][ T6330] do_el0_svc+0x58/0x14c [ 225.445587][ T6330] el0_svc+0x78/0x1e0 [ 225.446168][ T6330] el0t_64_sync_handler+0xcc/0xe4 [ 225.446940][ T6330] el0t_64_sync+0x1a0/0x1a4 [ 225.448207][ T6330] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.450225][ T6330] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.583160][ T6332] loop1: detected capacity change from 0 to 32768 [ 225.591044][ T6332] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.592215][ T6332] CPU: 1 PID: 6332 Comm: syz.1.643 Not tainted syzkaller #0 [ 225.593410][ T6332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 225.594923][ T6332] Call trace: [ 225.595385][ T6332] dump_backtrace+0x0/0x43c [ 225.596060][ T6332] show_stack+0x2c/0x3c [ 225.596651][ T6332] __dump_stack+0x30/0x40 [ 225.597310][ T6332] dump_stack_lvl+0xf8/0x160 [ 225.597991][ T6332] dump_stack+0x1c/0x5c [ 225.598619][ T6332] sysfs_create_dir_ns+0x22c/0x24c [ 225.599360][ T6332] kobject_add_internal+0x590/0xc54 [ 225.600118][ T6332] kobject_init_and_add+0x118/0x17c [ 225.600854][ T6332] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.601533][ T6332] gfs2_fill_super+0xdac/0x19e0 [ 225.602194][ T6332] get_tree_bdev+0x358/0x544 [ 225.602854][ T6332] gfs2_get_tree+0x54/0x1b4 [ 225.603505][ T6332] vfs_get_tree+0x90/0x274 [ 225.604121][ T6332] do_new_mount+0x228/0x810 [ 225.604735][ T6332] path_mount+0x5b4/0x1000 [ 225.605311][ T6332] __arm64_sys_mount+0x514/0x5e4 [ 225.605946][ T6332] invoke_syscall+0x98/0x2b8 [ 225.606569][ T6332] el0_svc_common+0x138/0x258 [ 225.607177][ T6332] do_el0_svc+0x58/0x14c [ 225.607776][ T6332] el0_svc+0x78/0x1e0 [ 225.608328][ T6332] el0t_64_sync_handler+0xcc/0xe4 [ 225.609025][ T6332] el0t_64_sync+0x1a0/0x1a4 [ 225.612149][ T6332] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.614148][ T6332] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.742731][ T6334] loop1: detected capacity change from 0 to 32768 [ 225.789439][ T6334] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.790728][ T6334] CPU: 1 PID: 6334 Comm: syz.1.644 Not tainted syzkaller #0 [ 225.791763][ T6334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 225.793183][ T6334] Call trace: [ 225.793643][ T6334] dump_backtrace+0x0/0x43c [ 225.794325][ T6334] show_stack+0x2c/0x3c [ 225.794889][ T6334] __dump_stack+0x30/0x40 [ 225.795527][ T6334] dump_stack_lvl+0xf8/0x160 [ 225.796179][ T6334] dump_stack+0x1c/0x5c [ 225.796797][ T6334] sysfs_create_dir_ns+0x22c/0x24c [ 225.797570][ T6334] kobject_add_internal+0x590/0xc54 [ 225.798335][ T6334] kobject_init_and_add+0x118/0x17c [ 225.799124][ T6334] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.799840][ T6334] gfs2_fill_super+0xdac/0x19e0 [ 225.800535][ T6334] get_tree_bdev+0x358/0x544 [ 225.801191][ T6334] gfs2_get_tree+0x54/0x1b4 [ 225.801829][ T6334] vfs_get_tree+0x90/0x274 [ 225.802487][ T6334] do_new_mount+0x228/0x810 [ 225.803112][ T6334] path_mount+0x5b4/0x1000 [ 225.803729][ T6334] __arm64_sys_mount+0x514/0x5e4 [ 225.804420][ T6334] invoke_syscall+0x98/0x2b8 [ 225.805062][ T6334] el0_svc_common+0x138/0x258 [ 225.805761][ T6334] do_el0_svc+0x58/0x14c [ 225.806400][ T6334] el0_svc+0x78/0x1e0 [ 225.806949][ T6334] el0t_64_sync_handler+0xcc/0xe4 [ 225.807651][ T6334] el0t_64_sync+0x1a0/0x1a4 [ 225.809954][ T6334] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.811879][ T6334] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.944757][ T6336] loop1: detected capacity change from 0 to 32768 [ 225.953695][ T6336] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.954907][ T6336] CPU: 0 PID: 6336 Comm: syz.1.645 Not tainted syzkaller #0 [ 225.955970][ T6336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 225.957546][ T6336] Call trace: [ 225.958005][ T6336] dump_backtrace+0x0/0x43c [ 225.958688][ T6336] show_stack+0x2c/0x3c [ 225.959321][ T6336] __dump_stack+0x30/0x40 [ 225.959981][ T6336] dump_stack_lvl+0xf8/0x160 [ 225.960636][ T6336] dump_stack+0x1c/0x5c [ 225.961285][ T6336] sysfs_create_dir_ns+0x22c/0x24c [ 225.962055][ T6336] kobject_add_internal+0x590/0xc54 [ 225.962790][ T6336] kobject_init_and_add+0x118/0x17c [ 225.963558][ T6336] gfs2_sys_fs_add+0x1dc/0x3d8 [ 225.964241][ T6336] gfs2_fill_super+0xdac/0x19e0 [ 225.964906][ T6336] get_tree_bdev+0x358/0x544 [ 225.965528][ T6336] gfs2_get_tree+0x54/0x1b4 [ 225.966130][ T6336] vfs_get_tree+0x90/0x274 [ 225.966756][ T6336] do_new_mount+0x228/0x810 [ 225.967402][ T6336] path_mount+0x5b4/0x1000 [ 225.967989][ T6336] __arm64_sys_mount+0x514/0x5e4 [ 225.968682][ T6336] invoke_syscall+0x98/0x2b8 [ 225.969346][ T6336] el0_svc_common+0x138/0x258 [ 225.970051][ T6336] do_el0_svc+0x58/0x14c [ 225.970628][ T6336] el0_svc+0x78/0x1e0 [ 225.971218][ T6336] el0t_64_sync_handler+0xcc/0xe4 [ 225.971924][ T6336] el0t_64_sync+0x1a0/0x1a4 [ 225.974064][ T6336] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.975987][ T6336] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.103751][ T6338] loop1: detected capacity change from 0 to 32768 [ 226.191901][ T6338] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.192969][ T6338] CPU: 1 PID: 6338 Comm: syz.1.646 Not tainted syzkaller #0 [ 226.194089][ T6338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 226.195543][ T6338] Call trace: [ 226.196016][ T6338] dump_backtrace+0x0/0x43c [ 226.196711][ T6338] show_stack+0x2c/0x3c [ 226.197347][ T6338] __dump_stack+0x30/0x40 [ 226.197988][ T6338] dump_stack_lvl+0xf8/0x160 [ 226.198645][ T6338] dump_stack+0x1c/0x5c [ 226.199213][ T6338] sysfs_create_dir_ns+0x22c/0x24c [ 226.199946][ T6338] kobject_add_internal+0x590/0xc54 [ 226.200681][ T6338] kobject_init_and_add+0x118/0x17c [ 226.201430][ T6338] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.202116][ T6338] gfs2_fill_super+0xdac/0x19e0 [ 226.202782][ T6338] get_tree_bdev+0x358/0x544 [ 226.203428][ T6338] gfs2_get_tree+0x54/0x1b4 [ 226.204017][ T6338] vfs_get_tree+0x90/0x274 [ 226.204648][ T6338] do_new_mount+0x228/0x810 [ 226.205224][ T6338] path_mount+0x5b4/0x1000 [ 226.205938][ T6338] __arm64_sys_mount+0x514/0x5e4 [ 226.206768][ T6338] invoke_syscall+0x98/0x2b8 [ 226.207488][ T6338] el0_svc_common+0x138/0x258 [ 226.208349][ T6338] do_el0_svc+0x58/0x14c [ 226.209004][ T6338] el0_svc+0x78/0x1e0 [ 226.209592][ T6338] el0t_64_sync_handler+0xcc/0xe4 [ 226.210394][ T6338] el0t_64_sync+0x1a0/0x1a4 [ 226.211357][ T6338] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.213232][ T6338] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.345614][ T6340] loop1: detected capacity change from 0 to 32768 [ 226.398688][ T6340] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.399823][ T6340] CPU: 0 PID: 6340 Comm: syz.1.647 Not tainted syzkaller #0 [ 226.400896][ T6340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 226.402283][ T6340] Call trace: [ 226.402740][ T6340] dump_backtrace+0x0/0x43c [ 226.403408][ T6340] show_stack+0x2c/0x3c [ 226.404012][ T6340] __dump_stack+0x30/0x40 [ 226.404653][ T6340] dump_stack_lvl+0xf8/0x160 [ 226.405316][ T6340] dump_stack+0x1c/0x5c [ 226.405885][ T6340] sysfs_create_dir_ns+0x22c/0x24c [ 226.406592][ T6340] kobject_add_internal+0x590/0xc54 [ 226.407326][ T6340] kobject_init_and_add+0x118/0x17c [ 226.408056][ T6340] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.408762][ T6340] gfs2_fill_super+0xdac/0x19e0 [ 226.409424][ T6340] get_tree_bdev+0x358/0x544 [ 226.410081][ T6340] gfs2_get_tree+0x54/0x1b4 [ 226.410725][ T6340] vfs_get_tree+0x90/0x274 [ 226.411395][ T6340] do_new_mount+0x228/0x810 [ 226.412030][ T6340] path_mount+0x5b4/0x1000 [ 226.412670][ T6340] __arm64_sys_mount+0x514/0x5e4 [ 226.413356][ T6340] invoke_syscall+0x98/0x2b8 [ 226.414026][ T6340] el0_svc_common+0x138/0x258 [ 226.414664][ T6340] do_el0_svc+0x58/0x14c [ 226.415246][ T6340] el0_svc+0x78/0x1e0 [ 226.415786][ T6340] el0t_64_sync_handler+0xcc/0xe4 [ 226.416463][ T6340] el0t_64_sync+0x1a0/0x1a4 [ 226.419030][ T6340] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.420804][ T6340] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.677999][ T6342] loop1: detected capacity change from 0 to 32768 [ 226.727577][ T4227] Bluetooth: hci2: command 0x0419 tx timeout [ 226.739506][ T6342] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.740595][ T6342] CPU: 0 PID: 6342 Comm: syz.1.648 Not tainted syzkaller #0 [ 226.741660][ T6342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 226.743143][ T6342] Call trace: [ 226.743602][ T6342] dump_backtrace+0x0/0x43c [ 226.744253][ T6342] show_stack+0x2c/0x3c [ 226.744864][ T6342] __dump_stack+0x30/0x40 [ 226.745465][ T6342] dump_stack_lvl+0xf8/0x160 [ 226.746123][ T6342] dump_stack+0x1c/0x5c [ 226.746751][ T6342] sysfs_create_dir_ns+0x22c/0x24c [ 226.747492][ T6342] kobject_add_internal+0x590/0xc54 [ 226.748204][ T6342] kobject_init_and_add+0x118/0x17c [ 226.748949][ T6342] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.749650][ T6342] gfs2_fill_super+0xdac/0x19e0 [ 226.750345][ T6342] get_tree_bdev+0x358/0x544 [ 226.751070][ T6342] gfs2_get_tree+0x54/0x1b4 [ 226.751782][ T6342] vfs_get_tree+0x90/0x274 [ 226.752499][ T6342] do_new_mount+0x228/0x810 [ 226.753182][ T6342] path_mount+0x5b4/0x1000 [ 226.753872][ T6342] __arm64_sys_mount+0x514/0x5e4 [ 226.754605][ T6342] invoke_syscall+0x98/0x2b8 [ 226.755298][ T6342] el0_svc_common+0x138/0x258 [ 226.755962][ T6342] do_el0_svc+0x58/0x14c [ 226.756579][ T6342] el0_svc+0x78/0x1e0 [ 226.757167][ T6342] el0t_64_sync_handler+0xcc/0xe4 [ 226.757876][ T6342] el0t_64_sync+0x1a0/0x1a4 [ 226.760466][ T6342] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.762277][ T6342] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.889992][ T6344] loop1: detected capacity change from 0 to 32768 [ 226.941143][ T6344] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.942359][ T6344] CPU: 0 PID: 6344 Comm: syz.1.649 Not tainted syzkaller #0 [ 226.943481][ T6344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 226.945003][ T6344] Call trace: [ 226.945480][ T6344] dump_backtrace+0x0/0x43c [ 226.946124][ T6344] show_stack+0x2c/0x3c [ 226.946735][ T6344] __dump_stack+0x30/0x40 [ 226.947397][ T6344] dump_stack_lvl+0xf8/0x160 [ 226.948094][ T6344] dump_stack+0x1c/0x5c [ 226.948698][ T6344] sysfs_create_dir_ns+0x22c/0x24c [ 226.949471][ T6344] kobject_add_internal+0x590/0xc54 [ 226.950247][ T6344] kobject_init_and_add+0x118/0x17c [ 226.951011][ T6344] gfs2_sys_fs_add+0x1dc/0x3d8 [ 226.951737][ T6344] gfs2_fill_super+0xdac/0x19e0 [ 226.952483][ T6344] get_tree_bdev+0x358/0x544 [ 226.953177][ T6344] gfs2_get_tree+0x54/0x1b4 [ 226.953867][ T6344] vfs_get_tree+0x90/0x274 [ 226.954504][ T6344] do_new_mount+0x228/0x810 [ 226.955150][ T6344] path_mount+0x5b4/0x1000 [ 226.955782][ T6344] __arm64_sys_mount+0x514/0x5e4 [ 226.956518][ T6344] invoke_syscall+0x98/0x2b8 [ 226.957186][ T6344] el0_svc_common+0x138/0x258 [ 226.957855][ T6344] do_el0_svc+0x58/0x14c [ 226.958450][ T6344] el0_svc+0x78/0x1e0 [ 226.958996][ T6344] el0t_64_sync_handler+0xcc/0xe4 [ 226.959698][ T6344] el0t_64_sync+0x1a0/0x1a4 [ 226.962193][ T6344] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.964055][ T6344] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.207414][ T6346] loop1: detected capacity change from 0 to 32768 [ 227.263840][ T6346] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.265229][ T6346] CPU: 1 PID: 6346 Comm: syz.1.650 Not tainted syzkaller #0 [ 227.266432][ T6346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 227.268012][ T6346] Call trace: [ 227.268493][ T6346] dump_backtrace+0x0/0x43c [ 227.269216][ T6346] show_stack+0x2c/0x3c [ 227.269841][ T6346] __dump_stack+0x30/0x40 [ 227.270494][ T6346] dump_stack_lvl+0xf8/0x160 [ 227.271190][ T6346] dump_stack+0x1c/0x5c [ 227.271818][ T6346] sysfs_create_dir_ns+0x22c/0x24c [ 227.272599][ T6346] kobject_add_internal+0x590/0xc54 [ 227.273334][ T6346] kobject_init_and_add+0x118/0x17c [ 227.274085][ T6346] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.274840][ T6346] gfs2_fill_super+0xdac/0x19e0 [ 227.275551][ T6346] get_tree_bdev+0x358/0x544 [ 227.276279][ T6346] gfs2_get_tree+0x54/0x1b4 [ 227.276971][ T6346] vfs_get_tree+0x90/0x274 [ 227.277633][ T6346] do_new_mount+0x228/0x810 [ 227.278355][ T6346] path_mount+0x5b4/0x1000 [ 227.279004][ T6346] __arm64_sys_mount+0x514/0x5e4 [ 227.279839][ T6346] invoke_syscall+0x98/0x2b8 [ 227.280551][ T6346] el0_svc_common+0x138/0x258 [ 227.281280][ T6346] do_el0_svc+0x58/0x14c [ 227.281962][ T6346] el0_svc+0x78/0x1e0 [ 227.282582][ T6346] el0t_64_sync_handler+0xcc/0xe4 [ 227.283348][ T6346] el0t_64_sync+0x1a0/0x1a4 [ 227.284258][ T6346] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.286308][ T6346] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.418348][ T6348] loop1: detected capacity change from 0 to 32768 [ 227.468228][ T6348] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.469556][ T6348] CPU: 0 PID: 6348 Comm: syz.1.651 Not tainted syzkaller #0 [ 227.470608][ T6348] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 227.472038][ T6348] Call trace: [ 227.472523][ T6348] dump_backtrace+0x0/0x43c [ 227.473199][ T6348] show_stack+0x2c/0x3c [ 227.473778][ T6348] __dump_stack+0x30/0x40 [ 227.474444][ T6348] dump_stack_lvl+0xf8/0x160 [ 227.475080][ T6348] dump_stack+0x1c/0x5c [ 227.475658][ T6348] sysfs_create_dir_ns+0x22c/0x24c [ 227.476423][ T6348] kobject_add_internal+0x590/0xc54 [ 227.477200][ T6348] kobject_init_and_add+0x118/0x17c [ 227.477948][ T6348] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.478627][ T6348] gfs2_fill_super+0xdac/0x19e0 [ 227.479317][ T6348] get_tree_bdev+0x358/0x544 [ 227.479985][ T6348] gfs2_get_tree+0x54/0x1b4 [ 227.480654][ T6348] vfs_get_tree+0x90/0x274 [ 227.481249][ T6348] do_new_mount+0x228/0x810 [ 227.481851][ T6348] path_mount+0x5b4/0x1000 [ 227.482472][ T6348] __arm64_sys_mount+0x514/0x5e4 [ 227.483160][ T6348] invoke_syscall+0x98/0x2b8 [ 227.483833][ T6348] el0_svc_common+0x138/0x258 [ 227.484493][ T6348] do_el0_svc+0x58/0x14c [ 227.485126][ T6348] el0_svc+0x78/0x1e0 [ 227.485682][ T6348] el0t_64_sync_handler+0xcc/0xe4 [ 227.486403][ T6348] el0t_64_sync+0x1a0/0x1a4 [ 227.487557][ T6348] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.489463][ T6348] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.662068][ T6350] loop1: detected capacity change from 0 to 32768 [ 227.698268][ T6350] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.699416][ T6350] CPU: 0 PID: 6350 Comm: syz.1.652 Not tainted syzkaller #0 [ 227.700466][ T6350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 227.701965][ T6350] Call trace: [ 227.702410][ T6350] dump_backtrace+0x0/0x43c [ 227.703021][ T6350] show_stack+0x2c/0x3c [ 227.703602][ T6350] __dump_stack+0x30/0x40 [ 227.704237][ T6350] dump_stack_lvl+0xf8/0x160 [ 227.704920][ T6350] dump_stack+0x1c/0x5c [ 227.705498][ T6350] sysfs_create_dir_ns+0x22c/0x24c [ 227.706250][ T6350] kobject_add_internal+0x590/0xc54 [ 227.707035][ T6350] kobject_init_and_add+0x118/0x17c [ 227.707795][ T6350] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.708480][ T6350] gfs2_fill_super+0xdac/0x19e0 [ 227.709169][ T6350] get_tree_bdev+0x358/0x544 [ 227.709808][ T6350] gfs2_get_tree+0x54/0x1b4 [ 227.710462][ T6350] vfs_get_tree+0x90/0x274 [ 227.711071][ T6350] do_new_mount+0x228/0x810 [ 227.711716][ T6350] path_mount+0x5b4/0x1000 [ 227.712352][ T6350] __arm64_sys_mount+0x514/0x5e4 [ 227.713039][ T6350] invoke_syscall+0x98/0x2b8 [ 227.713675][ T6350] el0_svc_common+0x138/0x258 [ 227.714301][ T6350] do_el0_svc+0x58/0x14c [ 227.714891][ T6350] el0_svc+0x78/0x1e0 [ 227.715586][ T6350] el0t_64_sync_handler+0xcc/0xe4 [ 227.716451][ T6350] el0t_64_sync+0x1a0/0x1a4 [ 227.721526][ T6350] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.723396][ T6350] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.859472][ T6352] loop1: detected capacity change from 0 to 32768 [ 227.898268][ T6352] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.899360][ T6352] CPU: 0 PID: 6352 Comm: syz.1.653 Not tainted syzkaller #0 [ 227.900372][ T6352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 227.901721][ T6352] Call trace: [ 227.902177][ T6352] dump_backtrace+0x0/0x43c [ 227.902796][ T6352] show_stack+0x2c/0x3c [ 227.903359][ T6352] __dump_stack+0x30/0x40 [ 227.903934][ T6352] dump_stack_lvl+0xf8/0x160 [ 227.904556][ T6352] dump_stack+0x1c/0x5c [ 227.905122][ T6352] sysfs_create_dir_ns+0x22c/0x24c [ 227.905777][ T6352] kobject_add_internal+0x590/0xc54 [ 227.906470][ T6352] kobject_init_and_add+0x118/0x17c [ 227.907182][ T6352] gfs2_sys_fs_add+0x1dc/0x3d8 [ 227.907831][ T6352] gfs2_fill_super+0xdac/0x19e0 [ 227.908500][ T6352] get_tree_bdev+0x358/0x544 [ 227.909125][ T6352] gfs2_get_tree+0x54/0x1b4 [ 227.909721][ T6352] vfs_get_tree+0x90/0x274 [ 227.910289][ T6352] do_new_mount+0x228/0x810 [ 227.910922][ T6352] path_mount+0x5b4/0x1000 [ 227.911546][ T6352] __arm64_sys_mount+0x514/0x5e4 [ 227.912218][ T6352] invoke_syscall+0x98/0x2b8 [ 227.912874][ T6352] el0_svc_common+0x138/0x258 [ 227.913566][ T6352] do_el0_svc+0x58/0x14c [ 227.914204][ T6352] el0_svc+0x78/0x1e0 [ 227.914785][ T6352] el0t_64_sync_handler+0xcc/0xe4 [ 227.915475][ T6352] el0t_64_sync+0x1a0/0x1a4 [ 227.916182][ T6352] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.918142][ T6352] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.045174][ T6354] loop1: detected capacity change from 0 to 32768 [ 228.081157][ T6354] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.082378][ T6354] CPU: 0 PID: 6354 Comm: syz.1.654 Not tainted syzkaller #0 [ 228.083514][ T6354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 228.084947][ T6354] Call trace: [ 228.085409][ T6354] dump_backtrace+0x0/0x43c [ 228.086045][ T6354] show_stack+0x2c/0x3c [ 228.086639][ T6354] __dump_stack+0x30/0x40 [ 228.087243][ T6354] dump_stack_lvl+0xf8/0x160 [ 228.087895][ T6354] dump_stack+0x1c/0x5c [ 228.088492][ T6354] sysfs_create_dir_ns+0x22c/0x24c [ 228.089225][ T6354] kobject_add_internal+0x590/0xc54 [ 228.089910][ T6354] kobject_init_and_add+0x118/0x17c [ 228.090626][ T6354] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.091270][ T6354] gfs2_fill_super+0xdac/0x19e0 [ 228.091919][ T6354] get_tree_bdev+0x358/0x544 [ 228.092598][ T6354] gfs2_get_tree+0x54/0x1b4 [ 228.093236][ T6354] vfs_get_tree+0x90/0x274 [ 228.093883][ T6354] do_new_mount+0x228/0x810 [ 228.094527][ T6354] path_mount+0x5b4/0x1000 [ 228.095142][ T6354] __arm64_sys_mount+0x514/0x5e4 [ 228.095837][ T6354] invoke_syscall+0x98/0x2b8 [ 228.096450][ T6354] el0_svc_common+0x138/0x258 [ 228.097056][ T6354] do_el0_svc+0x58/0x14c [ 228.097622][ T6354] el0_svc+0x78/0x1e0 [ 228.098162][ T6354] el0t_64_sync_handler+0xcc/0xe4 [ 228.098840][ T6354] el0t_64_sync+0x1a0/0x1a4 [ 228.101232][ T6354] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.103008][ T6354] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.346148][ T6356] loop1: detected capacity change from 0 to 32768 [ 228.398212][ T6356] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.402823][ T6356] CPU: 0 PID: 6356 Comm: syz.1.655 Not tainted syzkaller #0 [ 228.403791][ T6356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 228.405149][ T6356] Call trace: [ 228.405623][ T6356] dump_backtrace+0x0/0x43c [ 228.406274][ T6356] show_stack+0x2c/0x3c [ 228.406851][ T6356] __dump_stack+0x30/0x40 [ 228.407483][ T6356] dump_stack_lvl+0xf8/0x160 [ 228.408113][ T6356] dump_stack+0x1c/0x5c [ 228.408678][ T6356] sysfs_create_dir_ns+0x22c/0x24c [ 228.409434][ T6356] kobject_add_internal+0x590/0xc54 [ 228.410216][ T6356] kobject_init_and_add+0x118/0x17c [ 228.410960][ T6356] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.411655][ T6356] gfs2_fill_super+0xdac/0x19e0 [ 228.412349][ T6356] get_tree_bdev+0x358/0x544 [ 228.413016][ T6356] gfs2_get_tree+0x54/0x1b4 [ 228.413673][ T6356] vfs_get_tree+0x90/0x274 [ 228.414290][ T6356] do_new_mount+0x228/0x810 [ 228.414866][ T6356] path_mount+0x5b4/0x1000 [ 228.415511][ T6356] __arm64_sys_mount+0x514/0x5e4 [ 228.416165][ T6356] invoke_syscall+0x98/0x2b8 [ 228.416821][ T6356] el0_svc_common+0x138/0x258 [ 228.417485][ T6356] do_el0_svc+0x58/0x14c [ 228.418060][ T6356] el0_svc+0x78/0x1e0 [ 228.418613][ T6356] el0t_64_sync_handler+0xcc/0xe4 [ 228.419316][ T6356] el0t_64_sync+0x1a0/0x1a4 [ 228.421417][ T6356] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.423258][ T6356] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.553882][ T6358] loop1: detected capacity change from 0 to 32768 [ 228.632298][ T6358] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.633510][ T6358] CPU: 1 PID: 6358 Comm: syz.1.656 Not tainted syzkaller #0 [ 228.634600][ T6358] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 228.636089][ T6358] Call trace: [ 228.636583][ T6358] dump_backtrace+0x0/0x43c [ 228.637254][ T6358] show_stack+0x2c/0x3c [ 228.637859][ T6358] __dump_stack+0x30/0x40 [ 228.638496][ T6358] dump_stack_lvl+0xf8/0x160 [ 228.639218][ T6358] dump_stack+0x1c/0x5c [ 228.639785][ T6358] sysfs_create_dir_ns+0x22c/0x24c [ 228.640569][ T6358] kobject_add_internal+0x590/0xc54 [ 228.641344][ T6358] kobject_init_and_add+0x118/0x17c [ 228.642090][ T6358] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.642752][ T6358] gfs2_fill_super+0xdac/0x19e0 [ 228.643415][ T6358] get_tree_bdev+0x358/0x544 [ 228.644060][ T6358] gfs2_get_tree+0x54/0x1b4 [ 228.644794][ T6358] vfs_get_tree+0x90/0x274 [ 228.645380][ T6358] do_new_mount+0x228/0x810 [ 228.646027][ T6358] path_mount+0x5b4/0x1000 [ 228.646700][ T6358] __arm64_sys_mount+0x514/0x5e4 [ 228.647412][ T6358] invoke_syscall+0x98/0x2b8 [ 228.648056][ T6358] el0_svc_common+0x138/0x258 [ 228.648691][ T6358] do_el0_svc+0x58/0x14c [ 228.649341][ T6358] el0_svc+0x78/0x1e0 [ 228.649933][ T6358] el0t_64_sync_handler+0xcc/0xe4 [ 228.650689][ T6358] el0t_64_sync+0x1a0/0x1a4 [ 228.652138][ T6358] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.653998][ T6358] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.787799][ T6360] loop1: detected capacity change from 0 to 32768 [ 228.828579][ T6360] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.829698][ T6360] CPU: 1 PID: 6360 Comm: syz.1.657 Not tainted syzkaller #0 [ 228.830740][ T6360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 228.832110][ T6360] Call trace: [ 228.832602][ T6360] dump_backtrace+0x0/0x43c [ 228.833258][ T6360] show_stack+0x2c/0x3c [ 228.833879][ T6360] __dump_stack+0x30/0x40 [ 228.834510][ T6360] dump_stack_lvl+0xf8/0x160 [ 228.835168][ T6360] dump_stack+0x1c/0x5c [ 228.835754][ T6360] sysfs_create_dir_ns+0x22c/0x24c [ 228.836449][ T6360] kobject_add_internal+0x590/0xc54 [ 228.837151][ T6360] kobject_init_and_add+0x118/0x17c [ 228.837927][ T6360] gfs2_sys_fs_add+0x1dc/0x3d8 [ 228.838587][ T6360] gfs2_fill_super+0xdac/0x19e0 [ 228.839257][ T6360] get_tree_bdev+0x358/0x544 [ 228.839884][ T6360] gfs2_get_tree+0x54/0x1b4 [ 228.840505][ T6360] vfs_get_tree+0x90/0x274 [ 228.841123][ T6360] do_new_mount+0x228/0x810 [ 228.841745][ T6360] path_mount+0x5b4/0x1000 [ 228.842352][ T6360] __arm64_sys_mount+0x514/0x5e4 [ 228.842994][ T6360] invoke_syscall+0x98/0x2b8 [ 228.843624][ T6360] el0_svc_common+0x138/0x258 [ 228.844250][ T6360] do_el0_svc+0x58/0x14c [ 228.844840][ T6360] el0_svc+0x78/0x1e0 [ 228.845397][ T6360] el0t_64_sync_handler+0xcc/0xe4 [ 228.846085][ T6360] el0t_64_sync+0x1a0/0x1a4 [ 228.848199][ T6360] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.849853][ T6360] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.026549][ T6362] loop1: detected capacity change from 0 to 32768 [ 229.076231][ T6362] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.077483][ T6362] CPU: 1 PID: 6362 Comm: syz.1.658 Not tainted syzkaller #0 [ 229.078479][ T6362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 229.079884][ T6362] Call trace: [ 229.080349][ T6362] dump_backtrace+0x0/0x43c [ 229.080984][ T6362] show_stack+0x2c/0x3c [ 229.081561][ T6362] __dump_stack+0x30/0x40 [ 229.082177][ T6362] dump_stack_lvl+0xf8/0x160 [ 229.082813][ T6362] dump_stack+0x1c/0x5c [ 229.083377][ T6362] sysfs_create_dir_ns+0x22c/0x24c [ 229.084083][ T6362] kobject_add_internal+0x590/0xc54 [ 229.084816][ T6362] kobject_init_and_add+0x118/0x17c [ 229.085537][ T6362] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.086213][ T6362] gfs2_fill_super+0xdac/0x19e0 [ 229.086906][ T6362] get_tree_bdev+0x358/0x544 [ 229.087554][ T6362] gfs2_get_tree+0x54/0x1b4 [ 229.088190][ T6362] vfs_get_tree+0x90/0x274 [ 229.088813][ T6362] do_new_mount+0x228/0x810 [ 229.089444][ T6362] path_mount+0x5b4/0x1000 [ 229.090064][ T6362] __arm64_sys_mount+0x514/0x5e4 [ 229.090767][ T6362] invoke_syscall+0x98/0x2b8 [ 229.091570][ T6362] el0_svc_common+0x138/0x258 [ 229.092240][ T6362] do_el0_svc+0x58/0x14c [ 229.092898][ T6362] el0_svc+0x78/0x1e0 [ 229.093485][ T6362] el0t_64_sync_handler+0xcc/0xe4 [ 229.094245][ T6362] el0t_64_sync+0x1a0/0x1a4 [ 229.096517][ T6362] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.098641][ T6362] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.229875][ T6364] loop1: detected capacity change from 0 to 32768 [ 229.237935][ T6364] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.239166][ T6364] CPU: 0 PID: 6364 Comm: syz.1.659 Not tainted syzkaller #0 [ 229.240287][ T6364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 229.241775][ T6364] Call trace: [ 229.242361][ T6364] dump_backtrace+0x0/0x43c [ 229.242988][ T6364] show_stack+0x2c/0x3c [ 229.243670][ T6364] __dump_stack+0x30/0x40 [ 229.244378][ T6364] dump_stack_lvl+0xf8/0x160 [ 229.245135][ T6364] dump_stack+0x1c/0x5c [ 229.245802][ T6364] sysfs_create_dir_ns+0x22c/0x24c [ 229.246652][ T6364] kobject_add_internal+0x590/0xc54 [ 229.247445][ T6364] kobject_init_and_add+0x118/0x17c [ 229.248241][ T6364] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.248976][ T6364] gfs2_fill_super+0xdac/0x19e0 [ 229.249667][ T6364] get_tree_bdev+0x358/0x544 [ 229.250306][ T6364] gfs2_get_tree+0x54/0x1b4 [ 229.250952][ T6364] vfs_get_tree+0x90/0x274 [ 229.251579][ T6364] do_new_mount+0x228/0x810 [ 229.252213][ T6364] path_mount+0x5b4/0x1000 [ 229.252887][ T6364] __arm64_sys_mount+0x514/0x5e4 [ 229.253577][ T6364] invoke_syscall+0x98/0x2b8 [ 229.254221][ T6364] el0_svc_common+0x138/0x258 [ 229.254893][ T6364] do_el0_svc+0x58/0x14c [ 229.255475][ T6364] el0_svc+0x78/0x1e0 [ 229.256026][ T6364] el0t_64_sync_handler+0xcc/0xe4 [ 229.256720][ T6364] el0t_64_sync+0x1a0/0x1a4 [ 229.257843][ T6364] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.259627][ T6364] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.390765][ T6366] loop1: detected capacity change from 0 to 32768 [ 229.399242][ T6366] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.400334][ T6366] CPU: 0 PID: 6366 Comm: syz.1.660 Not tainted syzkaller #0 [ 229.401388][ T6366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 229.402709][ T6366] Call trace: [ 229.403161][ T6366] dump_backtrace+0x0/0x43c [ 229.403751][ T6366] show_stack+0x2c/0x3c [ 229.404313][ T6366] __dump_stack+0x30/0x40 [ 229.404890][ T6366] dump_stack_lvl+0xf8/0x160 [ 229.405531][ T6366] dump_stack+0x1c/0x5c [ 229.406097][ T6366] sysfs_create_dir_ns+0x22c/0x24c [ 229.406803][ T6366] kobject_add_internal+0x590/0xc54 [ 229.407546][ T6366] kobject_init_and_add+0x118/0x17c [ 229.408265][ T6366] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.408984][ T6366] gfs2_fill_super+0xdac/0x19e0 [ 229.409651][ T6366] get_tree_bdev+0x358/0x544 [ 229.410331][ T6366] gfs2_get_tree+0x54/0x1b4 [ 229.410982][ T6366] vfs_get_tree+0x90/0x274 [ 229.411558][ T6366] do_new_mount+0x228/0x810 [ 229.412211][ T6366] path_mount+0x5b4/0x1000 [ 229.412835][ T6366] __arm64_sys_mount+0x514/0x5e4 [ 229.413558][ T6366] invoke_syscall+0x98/0x2b8 [ 229.414208][ T6366] el0_svc_common+0x138/0x258 [ 229.414900][ T6366] do_el0_svc+0x58/0x14c [ 229.415513][ T6366] el0_svc+0x78/0x1e0 [ 229.416080][ T6366] el0t_64_sync_handler+0xcc/0xe4 [ 229.416776][ T6366] el0t_64_sync+0x1a0/0x1a4 [ 229.417646][ T6366] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.419587][ T6366] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.547738][ T6368] loop1: detected capacity change from 0 to 32768 [ 229.632099][ T6368] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.633251][ T6368] CPU: 0 PID: 6368 Comm: syz.1.661 Not tainted syzkaller #0 [ 229.634380][ T6368] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 229.635886][ T6368] Call trace: [ 229.636367][ T6368] dump_backtrace+0x0/0x43c [ 229.637046][ T6368] show_stack+0x2c/0x3c [ 229.637664][ T6368] __dump_stack+0x30/0x40 [ 229.638299][ T6368] dump_stack_lvl+0xf8/0x160 [ 229.638983][ T6368] dump_stack+0x1c/0x5c [ 229.639554][ T6368] sysfs_create_dir_ns+0x22c/0x24c [ 229.640250][ T6368] kobject_add_internal+0x590/0xc54 [ 229.640986][ T6368] kobject_init_and_add+0x118/0x17c [ 229.641739][ T6368] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.642407][ T6368] gfs2_fill_super+0xdac/0x19e0 [ 229.643088][ T6368] get_tree_bdev+0x358/0x544 [ 229.643732][ T6368] gfs2_get_tree+0x54/0x1b4 [ 229.644369][ T6368] vfs_get_tree+0x90/0x274 [ 229.644946][ T6368] do_new_mount+0x228/0x810 [ 229.645587][ T6368] path_mount+0x5b4/0x1000 [ 229.646223][ T6368] __arm64_sys_mount+0x514/0x5e4 [ 229.646901][ T6368] invoke_syscall+0x98/0x2b8 [ 229.647591][ T6368] el0_svc_common+0x138/0x258 [ 229.648257][ T6368] do_el0_svc+0x58/0x14c [ 229.648847][ T6368] el0_svc+0x78/0x1e0 [ 229.649403][ T6368] el0t_64_sync_handler+0xcc/0xe4 [ 229.650120][ T6368] el0t_64_sync+0x1a0/0x1a4 [ 229.650916][ T6368] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.652643][ T6368] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.779116][ T6370] loop1: detected capacity change from 0 to 32768 [ 229.820950][ T6370] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.822171][ T6370] CPU: 1 PID: 6370 Comm: syz.1.662 Not tainted syzkaller #0 [ 229.823342][ T6370] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 229.824971][ T6370] Call trace: [ 229.825450][ T6370] dump_backtrace+0x0/0x43c [ 229.826144][ T6370] show_stack+0x2c/0x3c [ 229.826742][ T6370] __dump_stack+0x30/0x40 [ 229.827371][ T6370] dump_stack_lvl+0xf8/0x160 [ 229.828076][ T6370] dump_stack+0x1c/0x5c [ 229.828686][ T6370] sysfs_create_dir_ns+0x22c/0x24c [ 229.829426][ T6370] kobject_add_internal+0x590/0xc54 [ 229.830166][ T6370] kobject_init_and_add+0x118/0x17c [ 229.830904][ T6370] gfs2_sys_fs_add+0x1dc/0x3d8 [ 229.831572][ T6370] gfs2_fill_super+0xdac/0x19e0 [ 229.832248][ T6370] get_tree_bdev+0x358/0x544 [ 229.832882][ T6370] gfs2_get_tree+0x54/0x1b4 [ 229.833501][ T6370] vfs_get_tree+0x90/0x274 [ 229.834115][ T6370] do_new_mount+0x228/0x810 [ 229.834752][ T6370] path_mount+0x5b4/0x1000 [ 229.835397][ T6370] __arm64_sys_mount+0x514/0x5e4 [ 229.836125][ T6370] invoke_syscall+0x98/0x2b8 [ 229.836817][ T6370] el0_svc_common+0x138/0x258 [ 229.837466][ T6370] do_el0_svc+0x58/0x14c [ 229.838064][ T6370] el0_svc+0x78/0x1e0 [ 229.838663][ T6370] el0t_64_sync_handler+0xcc/0xe4 [ 229.839378][ T6370] el0t_64_sync+0x1a0/0x1a4 [ 229.841562][ T6370] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.843495][ T6370] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.973799][ T6372] loop1: detected capacity change from 0 to 32768 [ 230.018290][ T6372] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.019531][ T6372] CPU: 0 PID: 6372 Comm: syz.1.663 Not tainted syzkaller #0 [ 230.020563][ T6372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 230.022059][ T6372] Call trace: [ 230.022507][ T6372] dump_backtrace+0x0/0x43c [ 230.023186][ T6372] show_stack+0x2c/0x3c [ 230.023745][ T6372] __dump_stack+0x30/0x40 [ 230.024400][ T6372] dump_stack_lvl+0xf8/0x160 [ 230.025107][ T6372] dump_stack+0x1c/0x5c [ 230.025680][ T6372] sysfs_create_dir_ns+0x22c/0x24c [ 230.026378][ T6372] kobject_add_internal+0x590/0xc54 [ 230.027089][ T6372] kobject_init_and_add+0x118/0x17c [ 230.027806][ T6372] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.028469][ T6372] gfs2_fill_super+0xdac/0x19e0 [ 230.029159][ T6372] get_tree_bdev+0x358/0x544 [ 230.029809][ T6372] gfs2_get_tree+0x54/0x1b4 [ 230.030435][ T6372] vfs_get_tree+0x90/0x274 [ 230.031069][ T6372] do_new_mount+0x228/0x810 [ 230.031698][ T6372] path_mount+0x5b4/0x1000 [ 230.032303][ T6372] __arm64_sys_mount+0x514/0x5e4 [ 230.032991][ T6372] invoke_syscall+0x98/0x2b8 [ 230.033641][ T6372] el0_svc_common+0x138/0x258 [ 230.034271][ T6372] do_el0_svc+0x58/0x14c [ 230.034904][ T6372] el0_svc+0x78/0x1e0 [ 230.035463][ T6372] el0t_64_sync_handler+0xcc/0xe4 [ 230.036215][ T6372] el0t_64_sync+0x1a0/0x1a4 [ 230.038670][ T6372] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.040628][ T6372] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.173191][ T6374] loop1: detected capacity change from 0 to 32768 [ 230.214416][ T6374] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.215643][ T6374] CPU: 1 PID: 6374 Comm: syz.1.664 Not tainted syzkaller #0 [ 230.216743][ T6374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 230.218328][ T6374] Call trace: [ 230.218848][ T6374] dump_backtrace+0x0/0x43c [ 230.219593][ T6374] show_stack+0x2c/0x3c [ 230.220274][ T6374] __dump_stack+0x30/0x40 [ 230.220965][ T6374] dump_stack_lvl+0xf8/0x160 [ 230.221686][ T6374] dump_stack+0x1c/0x5c [ 230.222330][ T6374] sysfs_create_dir_ns+0x22c/0x24c [ 230.223119][ T6374] kobject_add_internal+0x590/0xc54 [ 230.223892][ T6374] kobject_init_and_add+0x118/0x17c [ 230.224653][ T6374] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.225374][ T6374] gfs2_fill_super+0xdac/0x19e0 [ 230.226116][ T6374] get_tree_bdev+0x358/0x544 [ 230.226780][ T6374] gfs2_get_tree+0x54/0x1b4 [ 230.227441][ T6374] vfs_get_tree+0x90/0x274 [ 230.228050][ T6374] do_new_mount+0x228/0x810 [ 230.228764][ T6374] path_mount+0x5b4/0x1000 [ 230.229406][ T6374] __arm64_sys_mount+0x514/0x5e4 [ 230.230087][ T6374] invoke_syscall+0x98/0x2b8 [ 230.230767][ T6374] el0_svc_common+0x138/0x258 [ 230.231483][ T6374] do_el0_svc+0x58/0x14c [ 230.232125][ T6374] el0_svc+0x78/0x1e0 [ 230.232704][ T6374] el0t_64_sync_handler+0xcc/0xe4 [ 230.233435][ T6374] el0t_64_sync+0x1a0/0x1a4 [ 230.234322][ T6374] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.236484][ T6374] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:50 executed programs: 651 [ 230.370314][ T6376] loop1: detected capacity change from 0 to 32768 [ 230.416174][ T6376] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.418421][ T6376] CPU: 1 PID: 6376 Comm: syz.1.665 Not tainted syzkaller #0 [ 230.419613][ T6376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 230.421158][ T6376] Call trace: [ 230.421637][ T6376] dump_backtrace+0x0/0x43c [ 230.422269][ T6376] show_stack+0x2c/0x3c [ 230.422887][ T6376] __dump_stack+0x30/0x40 [ 230.423488][ T6376] dump_stack_lvl+0xf8/0x160 [ 230.424121][ T6376] dump_stack+0x1c/0x5c [ 230.424670][ T6376] sysfs_create_dir_ns+0x22c/0x24c [ 230.425382][ T6376] kobject_add_internal+0x590/0xc54 [ 230.426081][ T6376] kobject_init_and_add+0x118/0x17c [ 230.426805][ T6376] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.427545][ T6376] gfs2_fill_super+0xdac/0x19e0 [ 230.428392][ T6376] get_tree_bdev+0x358/0x544 [ 230.429128][ T6376] gfs2_get_tree+0x54/0x1b4 [ 230.429838][ T6376] vfs_get_tree+0x90/0x274 [ 230.430511][ T6376] do_new_mount+0x228/0x810 [ 230.431202][ T6376] path_mount+0x5b4/0x1000 [ 230.431863][ T6376] __arm64_sys_mount+0x514/0x5e4 [ 230.432683][ T6376] invoke_syscall+0x98/0x2b8 [ 230.433435][ T6376] el0_svc_common+0x138/0x258 [ 230.434177][ T6376] do_el0_svc+0x58/0x14c [ 230.434866][ T6376] el0_svc+0x78/0x1e0 [ 230.435456][ T6376] el0t_64_sync_handler+0xcc/0xe4 [ 230.436219][ T6376] el0t_64_sync+0x1a0/0x1a4 [ 230.438273][ T6376] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.440240][ T6376] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.568103][ T6378] loop1: detected capacity change from 0 to 32768 [ 230.609369][ T6378] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.610752][ T6378] CPU: 1 PID: 6378 Comm: syz.1.666 Not tainted syzkaller #0 [ 230.611742][ T6378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 230.613085][ T6378] Call trace: [ 230.613522][ T6378] dump_backtrace+0x0/0x43c [ 230.614148][ T6378] show_stack+0x2c/0x3c [ 230.614741][ T6378] __dump_stack+0x30/0x40 [ 230.615369][ T6378] dump_stack_lvl+0xf8/0x160 [ 230.616004][ T6378] dump_stack+0x1c/0x5c [ 230.616571][ T6378] sysfs_create_dir_ns+0x22c/0x24c [ 230.617323][ T6378] kobject_add_internal+0x590/0xc54 [ 230.618094][ T6378] kobject_init_and_add+0x118/0x17c [ 230.618813][ T6378] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.619484][ T6378] gfs2_fill_super+0xdac/0x19e0 [ 230.620152][ T6378] get_tree_bdev+0x358/0x544 [ 230.620805][ T6378] gfs2_get_tree+0x54/0x1b4 [ 230.621440][ T6378] vfs_get_tree+0x90/0x274 [ 230.622069][ T6378] do_new_mount+0x228/0x810 [ 230.622682][ T6378] path_mount+0x5b4/0x1000 [ 230.623302][ T6378] __arm64_sys_mount+0x514/0x5e4 [ 230.623935][ T6378] invoke_syscall+0x98/0x2b8 [ 230.624535][ T6378] el0_svc_common+0x138/0x258 [ 230.625185][ T6378] do_el0_svc+0x58/0x14c [ 230.625757][ T6378] el0_svc+0x78/0x1e0 [ 230.626334][ T6378] el0t_64_sync_handler+0xcc/0xe4 [ 230.627016][ T6378] el0t_64_sync+0x1a0/0x1a4 [ 230.629348][ T6378] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.631224][ T6378] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.762557][ T6380] loop1: detected capacity change from 0 to 32768 [ 230.818361][ T6380] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.819529][ T6380] CPU: 0 PID: 6380 Comm: syz.1.667 Not tainted syzkaller #0 [ 230.820524][ T6380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 230.821951][ T6380] Call trace: [ 230.822424][ T6380] dump_backtrace+0x0/0x43c [ 230.823066][ T6380] show_stack+0x2c/0x3c [ 230.823612][ T6380] __dump_stack+0x30/0x40 [ 230.824211][ T6380] dump_stack_lvl+0xf8/0x160 [ 230.824851][ T6380] dump_stack+0x1c/0x5c [ 230.825439][ T6380] sysfs_create_dir_ns+0x22c/0x24c [ 230.826189][ T6380] kobject_add_internal+0x590/0xc54 [ 230.826889][ T6380] kobject_init_and_add+0x118/0x17c [ 230.827616][ T6380] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.828279][ T6380] gfs2_fill_super+0xdac/0x19e0 [ 230.828953][ T6380] get_tree_bdev+0x358/0x544 [ 230.829625][ T6380] gfs2_get_tree+0x54/0x1b4 [ 230.830223][ T6380] vfs_get_tree+0x90/0x274 [ 230.830853][ T6380] do_new_mount+0x228/0x810 [ 230.831483][ T6380] path_mount+0x5b4/0x1000 [ 230.832115][ T6380] __arm64_sys_mount+0x514/0x5e4 [ 230.832818][ T6380] invoke_syscall+0x98/0x2b8 [ 230.833450][ T6380] el0_svc_common+0x138/0x258 [ 230.834102][ T6380] do_el0_svc+0x58/0x14c [ 230.834695][ T6380] el0_svc+0x78/0x1e0 [ 230.835249][ T6380] el0t_64_sync_handler+0xcc/0xe4 [ 230.835934][ T6380] el0t_64_sync+0x1a0/0x1a4 [ 230.836811][ T6380] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.838688][ T6380] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.969857][ T6382] loop1: detected capacity change from 0 to 32768 [ 230.977367][ T6382] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.978568][ T6382] CPU: 1 PID: 6382 Comm: syz.1.668 Not tainted syzkaller #0 [ 230.979628][ T6382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 230.981126][ T6382] Call trace: [ 230.981618][ T6382] dump_backtrace+0x0/0x43c [ 230.982267][ T6382] show_stack+0x2c/0x3c [ 230.982849][ T6382] __dump_stack+0x30/0x40 [ 230.983490][ T6382] dump_stack_lvl+0xf8/0x160 [ 230.984130][ T6382] dump_stack+0x1c/0x5c [ 230.984720][ T6382] sysfs_create_dir_ns+0x22c/0x24c [ 230.985422][ T6382] kobject_add_internal+0x590/0xc54 [ 230.986102][ T6382] kobject_init_and_add+0x118/0x17c [ 230.986902][ T6382] gfs2_sys_fs_add+0x1dc/0x3d8 [ 230.987621][ T6382] gfs2_fill_super+0xdac/0x19e0 [ 230.988314][ T6382] get_tree_bdev+0x358/0x544 [ 230.988958][ T6382] gfs2_get_tree+0x54/0x1b4 [ 230.989649][ T6382] vfs_get_tree+0x90/0x274 [ 230.990297][ T6382] do_new_mount+0x228/0x810 [ 230.990946][ T6382] path_mount+0x5b4/0x1000 [ 230.991590][ T6382] __arm64_sys_mount+0x514/0x5e4 [ 230.992289][ T6382] invoke_syscall+0x98/0x2b8 [ 230.992931][ T6382] el0_svc_common+0x138/0x258 [ 230.993568][ T6382] do_el0_svc+0x58/0x14c [ 230.994249][ T6382] el0_svc+0x78/0x1e0 [ 230.994826][ T6382] el0t_64_sync_handler+0xcc/0xe4 [ 230.995565][ T6382] el0t_64_sync+0x1a0/0x1a4 [ 230.997565][ T6382] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.999641][ T6382] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.128463][ T6384] loop1: detected capacity change from 0 to 32768 [ 231.199718][ T6384] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.200808][ T6384] CPU: 0 PID: 6384 Comm: syz.1.669 Not tainted syzkaller #0 [ 231.201848][ T6384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 231.203255][ T6384] Call trace: [ 231.203708][ T6384] dump_backtrace+0x0/0x43c [ 231.204375][ T6384] show_stack+0x2c/0x3c [ 231.204944][ T6384] __dump_stack+0x30/0x40 [ 231.205534][ T6384] dump_stack_lvl+0xf8/0x160 [ 231.206207][ T6384] dump_stack+0x1c/0x5c [ 231.206837][ T6384] sysfs_create_dir_ns+0x22c/0x24c [ 231.207593][ T6384] kobject_add_internal+0x590/0xc54 [ 231.208316][ T6384] kobject_init_and_add+0x118/0x17c [ 231.209030][ T6384] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.209735][ T6384] gfs2_fill_super+0xdac/0x19e0 [ 231.210444][ T6384] get_tree_bdev+0x358/0x544 [ 231.211088][ T6384] gfs2_get_tree+0x54/0x1b4 [ 231.211729][ T6384] vfs_get_tree+0x90/0x274 [ 231.212319][ T6384] do_new_mount+0x228/0x810 [ 231.212939][ T6384] path_mount+0x5b4/0x1000 [ 231.213563][ T6384] __arm64_sys_mount+0x514/0x5e4 [ 231.214249][ T6384] invoke_syscall+0x98/0x2b8 [ 231.214919][ T6384] el0_svc_common+0x138/0x258 [ 231.215610][ T6384] do_el0_svc+0x58/0x14c [ 231.216243][ T6384] el0_svc+0x78/0x1e0 [ 231.216792][ T6384] el0t_64_sync_handler+0xcc/0xe4 [ 231.217525][ T6384] el0t_64_sync+0x1a0/0x1a4 [ 231.218360][ T6384] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.220190][ T6384] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.394355][ T6386] loop1: detected capacity change from 0 to 32768 [ 231.431404][ T6386] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.432488][ T6386] CPU: 0 PID: 6386 Comm: syz.1.670 Not tainted syzkaller #0 [ 231.433593][ T6386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 231.435070][ T6386] Call trace: [ 231.435528][ T6386] dump_backtrace+0x0/0x43c [ 231.436136][ T6386] show_stack+0x2c/0x3c [ 231.436688][ T6386] __dump_stack+0x30/0x40 [ 231.437336][ T6386] dump_stack_lvl+0xf8/0x160 [ 231.438008][ T6386] dump_stack+0x1c/0x5c [ 231.438600][ T6386] sysfs_create_dir_ns+0x22c/0x24c [ 231.439330][ T6386] kobject_add_internal+0x590/0xc54 [ 231.440085][ T6386] kobject_init_and_add+0x118/0x17c [ 231.440854][ T6386] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.441530][ T6386] gfs2_fill_super+0xdac/0x19e0 [ 231.442202][ T6386] get_tree_bdev+0x358/0x544 [ 231.442843][ T6386] gfs2_get_tree+0x54/0x1b4 [ 231.443479][ T6386] vfs_get_tree+0x90/0x274 [ 231.444106][ T6386] do_new_mount+0x228/0x810 [ 231.444766][ T6386] path_mount+0x5b4/0x1000 [ 231.445389][ T6386] __arm64_sys_mount+0x514/0x5e4 [ 231.446061][ T6386] invoke_syscall+0x98/0x2b8 [ 231.446676][ T6386] el0_svc_common+0x138/0x258 [ 231.447313][ T6386] do_el0_svc+0x58/0x14c [ 231.447898][ T6386] el0_svc+0x78/0x1e0 [ 231.448428][ T6386] el0t_64_sync_handler+0xcc/0xe4 [ 231.449099][ T6386] el0t_64_sync+0x1a0/0x1a4 [ 231.449868][ T6386] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.452796][ T6386] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.584074][ T6388] loop1: detected capacity change from 0 to 32768 [ 231.682076][ T6388] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.683185][ T6388] CPU: 1 PID: 6388 Comm: syz.1.671 Not tainted syzkaller #0 [ 231.684254][ T6388] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 231.685636][ T6388] Call trace: [ 231.686070][ T6388] dump_backtrace+0x0/0x43c [ 231.686726][ T6388] show_stack+0x2c/0x3c [ 231.687318][ T6388] __dump_stack+0x30/0x40 [ 231.687937][ T6388] dump_stack_lvl+0xf8/0x160 [ 231.688537][ T6388] dump_stack+0x1c/0x5c [ 231.689124][ T6388] sysfs_create_dir_ns+0x22c/0x24c [ 231.689819][ T6388] kobject_add_internal+0x590/0xc54 [ 231.690514][ T6388] kobject_init_and_add+0x118/0x17c [ 231.691439][ T6388] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.692204][ T6388] gfs2_fill_super+0xdac/0x19e0 [ 231.692987][ T6388] get_tree_bdev+0x358/0x544 [ 231.693699][ T6388] gfs2_get_tree+0x54/0x1b4 [ 231.694392][ T6388] vfs_get_tree+0x90/0x274 [ 231.695053][ T6388] do_new_mount+0x228/0x810 [ 231.695732][ T6388] path_mount+0x5b4/0x1000 [ 231.696422][ T6388] __arm64_sys_mount+0x514/0x5e4 [ 231.697150][ T6388] invoke_syscall+0x98/0x2b8 [ 231.697841][ T6388] el0_svc_common+0x138/0x258 [ 231.698580][ T6388] do_el0_svc+0x58/0x14c [ 231.699196][ T6388] el0_svc+0x78/0x1e0 [ 231.699778][ T6388] el0t_64_sync_handler+0xcc/0xe4 [ 231.700458][ T6388] el0t_64_sync+0x1a0/0x1a4 [ 231.702586][ T6388] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.704397][ T6388] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.833361][ T6390] loop1: detected capacity change from 0 to 32768 [ 231.868170][ T6390] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.869357][ T6390] CPU: 0 PID: 6390 Comm: syz.1.672 Not tainted syzkaller #0 [ 231.870453][ T6390] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 231.871868][ T6390] Call trace: [ 231.872345][ T6390] dump_backtrace+0x0/0x43c [ 231.872988][ T6390] show_stack+0x2c/0x3c [ 231.873582][ T6390] __dump_stack+0x30/0x40 [ 231.874214][ T6390] dump_stack_lvl+0xf8/0x160 [ 231.874855][ T6390] dump_stack+0x1c/0x5c [ 231.875440][ T6390] sysfs_create_dir_ns+0x22c/0x24c [ 231.876200][ T6390] kobject_add_internal+0x590/0xc54 [ 231.876923][ T6390] kobject_init_and_add+0x118/0x17c [ 231.877690][ T6390] gfs2_sys_fs_add+0x1dc/0x3d8 [ 231.878372][ T6390] gfs2_fill_super+0xdac/0x19e0 [ 231.879079][ T6390] get_tree_bdev+0x358/0x544 [ 231.879737][ T6390] gfs2_get_tree+0x54/0x1b4 [ 231.880400][ T6390] vfs_get_tree+0x90/0x274 [ 231.881047][ T6390] do_new_mount+0x228/0x810 [ 231.881673][ T6390] path_mount+0x5b4/0x1000 [ 231.882265][ T6390] __arm64_sys_mount+0x514/0x5e4 [ 231.882947][ T6390] invoke_syscall+0x98/0x2b8 [ 231.883604][ T6390] el0_svc_common+0x138/0x258 [ 231.884305][ T6390] do_el0_svc+0x58/0x14c [ 231.884893][ T6390] el0_svc+0x78/0x1e0 [ 231.885425][ T6390] el0t_64_sync_handler+0xcc/0xe4 [ 231.886116][ T6390] el0t_64_sync+0x1a0/0x1a4 [ 231.886929][ T6390] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.888976][ T6390] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.021177][ T6392] loop1: detected capacity change from 0 to 32768 [ 232.028666][ T6392] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.029880][ T6392] CPU: 1 PID: 6392 Comm: syz.1.673 Not tainted syzkaller #0 [ 232.030976][ T6392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 232.032302][ T6392] Call trace: [ 232.032720][ T6392] dump_backtrace+0x0/0x43c [ 232.033346][ T6392] show_stack+0x2c/0x3c [ 232.033957][ T6392] __dump_stack+0x30/0x40 [ 232.034592][ T6392] dump_stack_lvl+0xf8/0x160 [ 232.035240][ T6392] dump_stack+0x1c/0x5c [ 232.035762][ T6392] sysfs_create_dir_ns+0x22c/0x24c [ 232.036426][ T6392] kobject_add_internal+0x590/0xc54 [ 232.037090][ T6392] kobject_init_and_add+0x118/0x17c [ 232.037971][ T6392] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.038789][ T6392] gfs2_fill_super+0xdac/0x19e0 [ 232.039547][ T6392] get_tree_bdev+0x358/0x544 [ 232.040285][ T6392] gfs2_get_tree+0x54/0x1b4 [ 232.040994][ T6392] vfs_get_tree+0x90/0x274 [ 232.041710][ T6392] do_new_mount+0x228/0x810 [ 232.042456][ T6392] path_mount+0x5b4/0x1000 [ 232.043123][ T6392] __arm64_sys_mount+0x514/0x5e4 [ 232.043789][ T6392] invoke_syscall+0x98/0x2b8 [ 232.044457][ T6392] el0_svc_common+0x138/0x258 [ 232.045163][ T6392] do_el0_svc+0x58/0x14c [ 232.045763][ T6392] el0_svc+0x78/0x1e0 [ 232.046333][ T6392] el0t_64_sync_handler+0xcc/0xe4 [ 232.047067][ T6392] el0t_64_sync+0x1a0/0x1a4 [ 232.047854][ T6392] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.049581][ T6392] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.176415][ T6394] loop1: detected capacity change from 0 to 32768 [ 232.183320][ T6394] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.184509][ T6394] CPU: 1 PID: 6394 Comm: syz.1.674 Not tainted syzkaller #0 [ 232.185567][ T6394] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 232.187081][ T6394] Call trace: [ 232.187588][ T6394] dump_backtrace+0x0/0x43c [ 232.188301][ T6394] show_stack+0x2c/0x3c [ 232.188892][ T6394] __dump_stack+0x30/0x40 [ 232.189486][ T6394] dump_stack_lvl+0xf8/0x160 [ 232.190152][ T6394] dump_stack+0x1c/0x5c [ 232.190863][ T6394] sysfs_create_dir_ns+0x22c/0x24c [ 232.191748][ T6394] kobject_add_internal+0x590/0xc54 [ 232.192596][ T6394] kobject_init_and_add+0x118/0x17c [ 232.193416][ T6394] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.194192][ T6394] gfs2_fill_super+0xdac/0x19e0 [ 232.194973][ T6394] get_tree_bdev+0x358/0x544 [ 232.195693][ T6394] gfs2_get_tree+0x54/0x1b4 [ 232.196397][ T6394] vfs_get_tree+0x90/0x274 [ 232.197056][ T6394] do_new_mount+0x228/0x810 [ 232.197682][ T6394] path_mount+0x5b4/0x1000 [ 232.198345][ T6394] __arm64_sys_mount+0x514/0x5e4 [ 232.199095][ T6394] invoke_syscall+0x98/0x2b8 [ 232.199795][ T6394] el0_svc_common+0x138/0x258 [ 232.200493][ T6394] do_el0_svc+0x58/0x14c [ 232.201126][ T6394] el0_svc+0x78/0x1e0 [ 232.201743][ T6394] el0t_64_sync_handler+0xcc/0xe4 [ 232.202517][ T6394] el0t_64_sync+0x1a0/0x1a4 [ 232.203301][ T6394] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.205226][ T6394] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.338364][ T6396] loop1: detected capacity change from 0 to 32768 [ 232.345413][ T6396] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.346541][ T6396] CPU: 0 PID: 6396 Comm: syz.1.675 Not tainted syzkaller #0 [ 232.347552][ T6396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 232.349066][ T6396] Call trace: [ 232.349540][ T6396] dump_backtrace+0x0/0x43c [ 232.350170][ T6396] show_stack+0x2c/0x3c [ 232.350798][ T6396] __dump_stack+0x30/0x40 [ 232.351416][ T6396] dump_stack_lvl+0xf8/0x160 [ 232.352036][ T6396] dump_stack+0x1c/0x5c [ 232.352616][ T6396] sysfs_create_dir_ns+0x22c/0x24c [ 232.353351][ T6396] kobject_add_internal+0x590/0xc54 [ 232.354087][ T6396] kobject_init_and_add+0x118/0x17c [ 232.354846][ T6396] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.355509][ T6396] gfs2_fill_super+0xdac/0x19e0 [ 232.356185][ T6396] get_tree_bdev+0x358/0x544 [ 232.356832][ T6396] gfs2_get_tree+0x54/0x1b4 [ 232.357440][ T6396] vfs_get_tree+0x90/0x274 [ 232.358184][ T6396] do_new_mount+0x228/0x810 [ 232.358918][ T6396] path_mount+0x5b4/0x1000 [ 232.359630][ T6396] __arm64_sys_mount+0x514/0x5e4 [ 232.360403][ T6396] invoke_syscall+0x98/0x2b8 [ 232.361144][ T6396] el0_svc_common+0x138/0x258 [ 232.361877][ T6396] do_el0_svc+0x58/0x14c [ 232.362534][ T6396] el0_svc+0x78/0x1e0 [ 232.363123][ T6396] el0t_64_sync_handler+0xcc/0xe4 [ 232.363881][ T6396] el0t_64_sync+0x1a0/0x1a4 [ 232.365263][ T6396] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.367274][ T6396] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.496038][ T6398] loop1: detected capacity change from 0 to 32768 [ 232.552061][ T6398] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.553172][ T6398] CPU: 1 PID: 6398 Comm: syz.1.676 Not tainted syzkaller #0 [ 232.554223][ T6398] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 232.555599][ T6398] Call trace: [ 232.556073][ T6398] dump_backtrace+0x0/0x43c [ 232.556713][ T6398] show_stack+0x2c/0x3c [ 232.557300][ T6398] __dump_stack+0x30/0x40 [ 232.557925][ T6398] dump_stack_lvl+0xf8/0x160 [ 232.558573][ T6398] dump_stack+0x1c/0x5c [ 232.559176][ T6398] sysfs_create_dir_ns+0x22c/0x24c [ 232.559905][ T6398] kobject_add_internal+0x590/0xc54 [ 232.560613][ T6398] kobject_init_and_add+0x118/0x17c [ 232.561324][ T6398] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.561973][ T6398] gfs2_fill_super+0xdac/0x19e0 [ 232.562657][ T6398] get_tree_bdev+0x358/0x544 [ 232.563289][ T6398] gfs2_get_tree+0x54/0x1b4 [ 232.563887][ T6398] vfs_get_tree+0x90/0x274 [ 232.564516][ T6398] do_new_mount+0x228/0x810 [ 232.565142][ T6398] path_mount+0x5b4/0x1000 [ 232.565760][ T6398] __arm64_sys_mount+0x514/0x5e4 [ 232.566434][ T6398] invoke_syscall+0x98/0x2b8 [ 232.567057][ T6398] el0_svc_common+0x138/0x258 [ 232.567690][ T6398] do_el0_svc+0x58/0x14c [ 232.568278][ T6398] el0_svc+0x78/0x1e0 [ 232.568794][ T6398] el0t_64_sync_handler+0xcc/0xe4 [ 232.569463][ T6398] el0t_64_sync+0x1a0/0x1a4 [ 232.570523][ T6398] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.572214][ T6398] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.797342][ T6400] loop1: detected capacity change from 0 to 32768 [ 232.859430][ T6400] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.860693][ T6400] CPU: 0 PID: 6400 Comm: syz.1.677 Not tainted syzkaller #0 [ 232.861741][ T6400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 232.863150][ T6400] Call trace: [ 232.863578][ T6400] dump_backtrace+0x0/0x43c [ 232.864222][ T6400] show_stack+0x2c/0x3c [ 232.864777][ T6400] __dump_stack+0x30/0x40 [ 232.865374][ T6400] dump_stack_lvl+0xf8/0x160 [ 232.866007][ T6400] dump_stack+0x1c/0x5c [ 232.866588][ T6400] sysfs_create_dir_ns+0x22c/0x24c [ 232.867310][ T6400] kobject_add_internal+0x590/0xc54 [ 232.868156][ T6400] kobject_init_and_add+0x118/0x17c [ 232.868882][ T6400] gfs2_sys_fs_add+0x1dc/0x3d8 [ 232.869540][ T6400] gfs2_fill_super+0xdac/0x19e0 [ 232.870206][ T6400] get_tree_bdev+0x358/0x544 [ 232.870829][ T6400] gfs2_get_tree+0x54/0x1b4 [ 232.871439][ T6400] vfs_get_tree+0x90/0x274 [ 232.872051][ T6400] do_new_mount+0x228/0x810 [ 232.872681][ T6400] path_mount+0x5b4/0x1000 [ 232.873304][ T6400] __arm64_sys_mount+0x514/0x5e4 [ 232.873993][ T6400] invoke_syscall+0x98/0x2b8 [ 232.874626][ T6400] el0_svc_common+0x138/0x258 [ 232.875280][ T6400] do_el0_svc+0x58/0x14c [ 232.875873][ T6400] el0_svc+0x78/0x1e0 [ 232.876414][ T6400] el0t_64_sync_handler+0xcc/0xe4 [ 232.877129][ T6400] el0t_64_sync+0x1a0/0x1a4 [ 232.879252][ T6400] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.881074][ T6400] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.015974][ T6402] loop1: detected capacity change from 0 to 32768 [ 233.023634][ T6402] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.024730][ T6402] CPU: 0 PID: 6402 Comm: syz.1.678 Not tainted syzkaller #0 [ 233.025718][ T6402] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 233.027043][ T6402] Call trace: [ 233.027487][ T6402] dump_backtrace+0x0/0x43c [ 233.028164][ T6402] show_stack+0x2c/0x3c [ 233.028729][ T6402] __dump_stack+0x30/0x40 [ 233.029303][ T6402] dump_stack_lvl+0xf8/0x160 [ 233.029927][ T6402] dump_stack+0x1c/0x5c [ 233.030629][ T6402] sysfs_create_dir_ns+0x22c/0x24c [ 233.031503][ T6402] kobject_add_internal+0x590/0xc54 [ 233.032353][ T6402] kobject_init_and_add+0x118/0x17c [ 233.033147][ T6402] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.033887][ T6402] gfs2_fill_super+0xdac/0x19e0 [ 233.034575][ T6402] get_tree_bdev+0x358/0x544 [ 233.035232][ T6402] gfs2_get_tree+0x54/0x1b4 [ 233.035897][ T6402] vfs_get_tree+0x90/0x274 [ 233.036556][ T6402] do_new_mount+0x228/0x810 [ 233.037249][ T6402] path_mount+0x5b4/0x1000 [ 233.037899][ T6402] __arm64_sys_mount+0x514/0x5e4 [ 233.038727][ T6402] invoke_syscall+0x98/0x2b8 [ 233.039465][ T6402] el0_svc_common+0x138/0x258 [ 233.040220][ T6402] do_el0_svc+0x58/0x14c [ 233.040892][ T6402] el0_svc+0x78/0x1e0 [ 233.041501][ T6402] el0t_64_sync_handler+0xcc/0xe4 [ 233.042223][ T6402] el0t_64_sync+0x1a0/0x1a4 [ 233.044289][ T6402] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.046250][ T6402] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.176524][ T6404] loop1: detected capacity change from 0 to 32768 [ 233.228314][ T6404] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.229454][ T6404] CPU: 0 PID: 6404 Comm: syz.1.679 Not tainted syzkaller #0 [ 233.230455][ T6404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 233.231828][ T6404] Call trace: [ 233.232243][ T6404] dump_backtrace+0x0/0x43c [ 233.232822][ T6404] show_stack+0x2c/0x3c [ 233.233365][ T6404] __dump_stack+0x30/0x40 [ 233.233938][ T6404] dump_stack_lvl+0xf8/0x160 [ 233.234579][ T6404] dump_stack+0x1c/0x5c [ 233.235138][ T6404] sysfs_create_dir_ns+0x22c/0x24c [ 233.235886][ T6404] kobject_add_internal+0x590/0xc54 [ 233.236615][ T6404] kobject_init_and_add+0x118/0x17c [ 233.237344][ T6404] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.238019][ T6404] gfs2_fill_super+0xdac/0x19e0 [ 233.238713][ T6404] get_tree_bdev+0x358/0x544 [ 233.239346][ T6404] gfs2_get_tree+0x54/0x1b4 [ 233.240039][ T6404] vfs_get_tree+0x90/0x274 [ 233.240678][ T6404] do_new_mount+0x228/0x810 [ 233.241404][ T6404] path_mount+0x5b4/0x1000 [ 233.242068][ T6404] __arm64_sys_mount+0x514/0x5e4 [ 233.242777][ T6404] invoke_syscall+0x98/0x2b8 [ 233.243403][ T6404] el0_svc_common+0x138/0x258 [ 233.244102][ T6404] do_el0_svc+0x58/0x14c [ 233.244719][ T6404] el0_svc+0x78/0x1e0 [ 233.245289][ T6404] el0t_64_sync_handler+0xcc/0xe4 [ 233.245980][ T6404] el0t_64_sync+0x1a0/0x1a4 [ 233.248082][ T6404] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.249951][ T6404] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.427906][ T6406] loop1: detected capacity change from 0 to 32768 [ 233.434682][ T6406] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.435754][ T6406] CPU: 1 PID: 6406 Comm: syz.1.680 Not tainted syzkaller #0 [ 233.436770][ T6406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 233.438219][ T6406] Call trace: [ 233.438740][ T6406] dump_backtrace+0x0/0x43c [ 233.439387][ T6406] show_stack+0x2c/0x3c [ 233.439960][ T6406] __dump_stack+0x30/0x40 [ 233.440573][ T6406] dump_stack_lvl+0xf8/0x160 [ 233.441218][ T6406] dump_stack+0x1c/0x5c [ 233.441826][ T6406] sysfs_create_dir_ns+0x22c/0x24c [ 233.442569][ T6406] kobject_add_internal+0x590/0xc54 [ 233.443281][ T6406] kobject_init_and_add+0x118/0x17c [ 233.444075][ T6406] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.444741][ T6406] gfs2_fill_super+0xdac/0x19e0 [ 233.445412][ T6406] get_tree_bdev+0x358/0x544 [ 233.446057][ T6406] gfs2_get_tree+0x54/0x1b4 [ 233.446692][ T6406] vfs_get_tree+0x90/0x274 [ 233.447308][ T6406] do_new_mount+0x228/0x810 [ 233.447946][ T6406] path_mount+0x5b4/0x1000 [ 233.448558][ T6406] __arm64_sys_mount+0x514/0x5e4 [ 233.449205][ T6406] invoke_syscall+0x98/0x2b8 [ 233.449902][ T6406] el0_svc_common+0x138/0x258 [ 233.450649][ T6406] do_el0_svc+0x58/0x14c [ 233.451288][ T6406] el0_svc+0x78/0x1e0 [ 233.451870][ T6406] el0t_64_sync_handler+0xcc/0xe4 [ 233.452569][ T6406] el0t_64_sync+0x1a0/0x1a4 [ 233.454581][ T6406] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.456685][ T6406] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.586200][ T6408] loop1: detected capacity change from 0 to 32768 [ 233.628732][ T6408] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.629903][ T6408] CPU: 0 PID: 6408 Comm: syz.1.681 Not tainted syzkaller #0 [ 233.630947][ T6408] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 233.632268][ T6408] Call trace: [ 233.632685][ T6408] dump_backtrace+0x0/0x43c [ 233.633361][ T6408] show_stack+0x2c/0x3c [ 233.633955][ T6408] __dump_stack+0x30/0x40 [ 233.634552][ T6408] dump_stack_lvl+0xf8/0x160 [ 233.635193][ T6408] dump_stack+0x1c/0x5c [ 233.635830][ T6408] sysfs_create_dir_ns+0x22c/0x24c [ 233.636588][ T6408] kobject_add_internal+0x590/0xc54 [ 233.637318][ T6408] kobject_init_and_add+0x118/0x17c [ 233.638022][ T6408] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.638699][ T6408] gfs2_fill_super+0xdac/0x19e0 [ 233.639394][ T6408] get_tree_bdev+0x358/0x544 [ 233.640056][ T6408] gfs2_get_tree+0x54/0x1b4 [ 233.640689][ T6408] vfs_get_tree+0x90/0x274 [ 233.641328][ T6408] do_new_mount+0x228/0x810 [ 233.641964][ T6408] path_mount+0x5b4/0x1000 [ 233.642592][ T6408] __arm64_sys_mount+0x514/0x5e4 [ 233.643318][ T6408] invoke_syscall+0x98/0x2b8 [ 233.643964][ T6408] el0_svc_common+0x138/0x258 [ 233.644630][ T6408] do_el0_svc+0x58/0x14c [ 233.645221][ T6408] el0_svc+0x78/0x1e0 [ 233.645819][ T6408] el0t_64_sync_handler+0xcc/0xe4 [ 233.646476][ T6408] el0t_64_sync+0x1a0/0x1a4 [ 233.648558][ T6408] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.650524][ T6408] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.830321][ T6410] loop1: detected capacity change from 0 to 32768 [ 233.868707][ T6410] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.869885][ T6410] CPU: 0 PID: 6410 Comm: syz.1.682 Not tainted syzkaller #0 [ 233.871013][ T6410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 233.872548][ T6410] Call trace: [ 233.873036][ T6410] dump_backtrace+0x0/0x43c [ 233.873725][ T6410] show_stack+0x2c/0x3c [ 233.874353][ T6410] __dump_stack+0x30/0x40 [ 233.875010][ T6410] dump_stack_lvl+0xf8/0x160 [ 233.875716][ T6410] dump_stack+0x1c/0x5c [ 233.876338][ T6410] sysfs_create_dir_ns+0x22c/0x24c [ 233.877078][ T6410] kobject_add_internal+0x590/0xc54 [ 233.877865][ T6410] kobject_init_and_add+0x118/0x17c [ 233.878618][ T6410] gfs2_sys_fs_add+0x1dc/0x3d8 [ 233.879316][ T6410] gfs2_fill_super+0xdac/0x19e0 [ 233.880036][ T6410] get_tree_bdev+0x358/0x544 [ 233.880678][ T6410] gfs2_get_tree+0x54/0x1b4 [ 233.881327][ T6410] vfs_get_tree+0x90/0x274 [ 233.881946][ T6410] do_new_mount+0x228/0x810 [ 233.882602][ T6410] path_mount+0x5b4/0x1000 [ 233.883201][ T6410] __arm64_sys_mount+0x514/0x5e4 [ 233.883891][ T6410] invoke_syscall+0x98/0x2b8 [ 233.884572][ T6410] el0_svc_common+0x138/0x258 [ 233.885266][ T6410] do_el0_svc+0x58/0x14c [ 233.885906][ T6410] el0_svc+0x78/0x1e0 [ 233.886499][ T6410] el0t_64_sync_handler+0xcc/0xe4 [ 233.887237][ T6410] el0t_64_sync+0x1a0/0x1a4 [ 233.897231][ T6410] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.899232][ T6410] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.037072][ T6412] loop1: detected capacity change from 0 to 32768 [ 234.092262][ T6412] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.093586][ T6412] CPU: 1 PID: 6412 Comm: syz.1.683 Not tainted syzkaller #0 [ 234.094751][ T6412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 234.096327][ T6412] Call trace: [ 234.096840][ T6412] dump_backtrace+0x0/0x43c [ 234.097538][ T6412] show_stack+0x2c/0x3c [ 234.098217][ T6412] __dump_stack+0x30/0x40 [ 234.098861][ T6412] dump_stack_lvl+0xf8/0x160 [ 234.099555][ T6412] dump_stack+0x1c/0x5c [ 234.100175][ T6412] sysfs_create_dir_ns+0x22c/0x24c [ 234.100948][ T6412] kobject_add_internal+0x590/0xc54 [ 234.101707][ T6412] kobject_init_and_add+0x118/0x17c [ 234.102483][ T6412] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.103207][ T6412] gfs2_fill_super+0xdac/0x19e0 [ 234.103956][ T6412] get_tree_bdev+0x358/0x544 [ 234.104652][ T6412] gfs2_get_tree+0x54/0x1b4 [ 234.105286][ T6412] vfs_get_tree+0x90/0x274 [ 234.105939][ T6412] do_new_mount+0x228/0x810 [ 234.106603][ T6412] path_mount+0x5b4/0x1000 [ 234.107230][ T6412] __arm64_sys_mount+0x514/0x5e4 [ 234.107928][ T6412] invoke_syscall+0x98/0x2b8 [ 234.108607][ T6412] el0_svc_common+0x138/0x258 [ 234.109291][ T6412] do_el0_svc+0x58/0x14c [ 234.109867][ T6412] el0_svc+0x78/0x1e0 [ 234.110416][ T6412] el0t_64_sync_handler+0xcc/0xe4 [ 234.111081][ T6412] el0t_64_sync+0x1a0/0x1a4 [ 234.112526][ T6412] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.114325][ T6412] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.246628][ T6414] loop1: detected capacity change from 0 to 32768 [ 234.290057][ T6414] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.291193][ T6414] CPU: 1 PID: 6414 Comm: syz.1.684 Not tainted syzkaller #0 [ 234.292215][ T6414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 234.293627][ T6414] Call trace: [ 234.294108][ T6414] dump_backtrace+0x0/0x43c [ 234.294766][ T6414] show_stack+0x2c/0x3c [ 234.295357][ T6414] __dump_stack+0x30/0x40 [ 234.295994][ T6414] dump_stack_lvl+0xf8/0x160 [ 234.296693][ T6414] dump_stack+0x1c/0x5c [ 234.297296][ T6414] sysfs_create_dir_ns+0x22c/0x24c [ 234.298063][ T6414] kobject_add_internal+0x590/0xc54 [ 234.298867][ T6414] kobject_init_and_add+0x118/0x17c [ 234.299635][ T6414] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.300353][ T6414] gfs2_fill_super+0xdac/0x19e0 [ 234.301071][ T6414] get_tree_bdev+0x358/0x544 [ 234.301728][ T6414] gfs2_get_tree+0x54/0x1b4 [ 234.302383][ T6414] vfs_get_tree+0x90/0x274 [ 234.303021][ T6414] do_new_mount+0x228/0x810 [ 234.303690][ T6414] path_mount+0x5b4/0x1000 [ 234.304323][ T6414] __arm64_sys_mount+0x514/0x5e4 [ 234.305045][ T6414] invoke_syscall+0x98/0x2b8 [ 234.305722][ T6414] el0_svc_common+0x138/0x258 [ 234.306377][ T6414] do_el0_svc+0x58/0x14c [ 234.306988][ T6414] el0_svc+0x78/0x1e0 [ 234.307580][ T6414] el0t_64_sync_handler+0xcc/0xe4 [ 234.308363][ T6414] el0t_64_sync+0x1a0/0x1a4 [ 234.314046][ T6414] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.315944][ T6414] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.552252][ T6416] loop1: detected capacity change from 0 to 32768 [ 234.612619][ T6416] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.613743][ T6416] CPU: 0 PID: 6416 Comm: syz.1.685 Not tainted syzkaller #0 [ 234.614755][ T6416] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 234.616119][ T6416] Call trace: [ 234.616561][ T6416] dump_backtrace+0x0/0x43c [ 234.617224][ T6416] show_stack+0x2c/0x3c [ 234.617813][ T6416] __dump_stack+0x30/0x40 [ 234.618470][ T6416] dump_stack_lvl+0xf8/0x160 [ 234.619120][ T6416] dump_stack+0x1c/0x5c [ 234.619751][ T6416] sysfs_create_dir_ns+0x22c/0x24c [ 234.620483][ T6416] kobject_add_internal+0x590/0xc54 [ 234.621208][ T6416] kobject_init_and_add+0x118/0x17c [ 234.621930][ T6416] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.622608][ T6416] gfs2_fill_super+0xdac/0x19e0 [ 234.623250][ T6416] get_tree_bdev+0x358/0x544 [ 234.623873][ T6416] gfs2_get_tree+0x54/0x1b4 [ 234.624493][ T6416] vfs_get_tree+0x90/0x274 [ 234.625104][ T6416] do_new_mount+0x228/0x810 [ 234.625738][ T6416] path_mount+0x5b4/0x1000 [ 234.626367][ T6416] __arm64_sys_mount+0x514/0x5e4 [ 234.627068][ T6416] invoke_syscall+0x98/0x2b8 [ 234.627708][ T6416] el0_svc_common+0x138/0x258 [ 234.628342][ T6416] do_el0_svc+0x58/0x14c [ 234.628934][ T6416] el0_svc+0x78/0x1e0 [ 234.629484][ T6416] el0t_64_sync_handler+0xcc/0xe4 [ 234.630179][ T6416] el0t_64_sync+0x1a0/0x1a4 [ 234.631216][ T6416] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.633028][ T6416] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.761040][ T6418] loop1: detected capacity change from 0 to 32768 [ 234.798285][ T6418] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.799544][ T6418] CPU: 1 PID: 6418 Comm: syz.1.686 Not tainted syzkaller #0 [ 234.800649][ T6418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 234.802225][ T6418] Call trace: [ 234.802699][ T6418] dump_backtrace+0x0/0x43c [ 234.803373][ T6418] show_stack+0x2c/0x3c [ 234.803963][ T6418] __dump_stack+0x30/0x40 [ 234.804604][ T6418] dump_stack_lvl+0xf8/0x160 [ 234.805298][ T6418] dump_stack+0x1c/0x5c [ 234.805989][ T6418] sysfs_create_dir_ns+0x22c/0x24c [ 234.806695][ T6418] kobject_add_internal+0x590/0xc54 [ 234.807422][ T6418] kobject_init_and_add+0x118/0x17c [ 234.808146][ T6418] gfs2_sys_fs_add+0x1dc/0x3d8 [ 234.808831][ T6418] gfs2_fill_super+0xdac/0x19e0 [ 234.809584][ T6418] get_tree_bdev+0x358/0x544 [ 234.810254][ T6418] gfs2_get_tree+0x54/0x1b4 [ 234.810915][ T6418] vfs_get_tree+0x90/0x274 [ 234.811536][ T6418] do_new_mount+0x228/0x810 [ 234.812162][ T6418] path_mount+0x5b4/0x1000 [ 234.812722][ T6418] __arm64_sys_mount+0x514/0x5e4 [ 234.813391][ T6418] invoke_syscall+0x98/0x2b8 [ 234.814064][ T6418] el0_svc_common+0x138/0x258 [ 234.814721][ T6418] do_el0_svc+0x58/0x14c [ 234.815349][ T6418] el0_svc+0x78/0x1e0 [ 234.815889][ T6418] el0t_64_sync_handler+0xcc/0xe4 [ 234.816594][ T6418] el0t_64_sync+0x1a0/0x1a4 [ 234.818672][ T6418] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.820929][ T6418] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.960584][ T6420] loop1: detected capacity change from 0 to 32768 [ 235.011373][ T6420] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.012706][ T6420] CPU: 1 PID: 6420 Comm: syz.1.687 Not tainted syzkaller #0 [ 235.013860][ T6420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 235.015440][ T6420] Call trace: [ 235.015980][ T6420] dump_backtrace+0x0/0x43c [ 235.016677][ T6420] show_stack+0x2c/0x3c [ 235.017327][ T6420] __dump_stack+0x30/0x40 [ 235.018041][ T6420] dump_stack_lvl+0xf8/0x160 [ 235.018757][ T6420] dump_stack+0x1c/0x5c [ 235.019410][ T6420] sysfs_create_dir_ns+0x22c/0x24c [ 235.020160][ T6420] kobject_add_internal+0x590/0xc54 [ 235.020919][ T6420] kobject_init_and_add+0x118/0x17c [ 235.021623][ T6420] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.022302][ T6420] gfs2_fill_super+0xdac/0x19e0 [ 235.023042][ T6420] get_tree_bdev+0x358/0x544 [ 235.023734][ T6420] gfs2_get_tree+0x54/0x1b4 [ 235.024393][ T6420] vfs_get_tree+0x90/0x274 [ 235.025012][ T6420] do_new_mount+0x228/0x810 [ 235.025634][ T6420] path_mount+0x5b4/0x1000 [ 235.026299][ T6420] __arm64_sys_mount+0x514/0x5e4 [ 235.027007][ T6420] invoke_syscall+0x98/0x2b8 [ 235.027666][ T6420] el0_svc_common+0x138/0x258 [ 235.028354][ T6420] do_el0_svc+0x58/0x14c [ 235.029024][ T6420] el0_svc+0x78/0x1e0 [ 235.029613][ T6420] el0t_64_sync_handler+0xcc/0xe4 [ 235.030356][ T6420] el0t_64_sync+0x1a0/0x1a4 [ 235.032753][ T6420] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.034561][ T6420] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.170699][ T6422] loop1: detected capacity change from 0 to 32768 [ 235.173604][ T6422] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.174816][ T6422] CPU: 0 PID: 6422 Comm: syz.1.688 Not tainted syzkaller #0 [ 235.175947][ T6422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 235.177450][ T6422] Call trace: [ 235.177968][ T6422] dump_backtrace+0x0/0x43c [ 235.178618][ T6422] show_stack+0x2c/0x3c [ 235.179247][ T6422] __dump_stack+0x30/0x40 [ 235.179906][ T6422] dump_stack_lvl+0xf8/0x160 [ 235.180548][ T6422] dump_stack+0x1c/0x5c [ 235.181088][ T6422] sysfs_create_dir_ns+0x22c/0x24c [ 235.181819][ T6422] kobject_add_internal+0x590/0xc54 [ 235.182563][ T6422] kobject_init_and_add+0x118/0x17c [ 235.183271][ T6422] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.183977][ T6422] gfs2_fill_super+0xdac/0x19e0 [ 235.184684][ T6422] get_tree_bdev+0x358/0x544 [ 235.185388][ T6422] gfs2_get_tree+0x54/0x1b4 [ 235.186032][ T6422] vfs_get_tree+0x90/0x274 [ 235.186679][ T6422] do_new_mount+0x228/0x810 [ 235.187352][ T6422] path_mount+0x5b4/0x1000 [ 235.188033][ T6422] __arm64_sys_mount+0x514/0x5e4 [ 235.188750][ T6422] invoke_syscall+0x98/0x2b8 [ 235.189395][ T6422] el0_svc_common+0x138/0x258 [ 235.190065][ T6422] do_el0_svc+0x58/0x14c [ 235.190660][ T6422] el0_svc+0x78/0x1e0 [ 235.191210][ T6422] el0t_64_sync_handler+0xcc/0xe4 [ 235.191928][ T6422] el0t_64_sync+0x1a0/0x1a4 [ 235.193027][ T6422] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.194847][ T6422] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.405621][ T6424] loop1: detected capacity change from 0 to 32768 [ 235.454058][ T6424] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.455217][ T6424] CPU: 0 PID: 6424 Comm: syz.1.689 Not tainted syzkaller #0 [ 235.456277][ T6424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 235.457735][ T6424] Call trace: [ 235.458224][ T6424] dump_backtrace+0x0/0x43c [ 235.458844][ T6424] show_stack+0x2c/0x3c [ 235.459445][ T6424] __dump_stack+0x30/0x40 [ 235.460085][ T6424] dump_stack_lvl+0xf8/0x160 [ 235.460737][ T6424] dump_stack+0x1c/0x5c [ 235.461293][ T6424] sysfs_create_dir_ns+0x22c/0x24c [ 235.461959][ T6424] kobject_add_internal+0x590/0xc54 [ 235.462724][ T6424] kobject_init_and_add+0x118/0x17c [ 235.463455][ T6424] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.464121][ T6424] gfs2_fill_super+0xdac/0x19e0 [ 235.464804][ T6424] get_tree_bdev+0x358/0x544 [ 235.465465][ T6424] gfs2_get_tree+0x54/0x1b4 [ 235.466123][ T6424] vfs_get_tree+0x90/0x274 [ 235.466787][ T6424] do_new_mount+0x228/0x810 [ 235.467376][ T6424] path_mount+0x5b4/0x1000 [ 235.468039][ T6424] __arm64_sys_mount+0x514/0x5e4 [ 235.468821][ T6424] invoke_syscall+0x98/0x2b8 [ 235.469511][ T6424] el0_svc_common+0x138/0x258 [ 235.470231][ T6424] do_el0_svc+0x58/0x14c [ 235.470841][ T6424] el0_svc+0x78/0x1e0 [ 235.471428][ T6424] el0t_64_sync_handler+0xcc/0xe4 [ 235.472151][ T6424] el0t_64_sync+0x1a0/0x1a4 [ 235.472945][ T6424] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.474777][ T6424] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:55 executed programs: 676 [ 235.608478][ T6426] loop1: detected capacity change from 0 to 32768 [ 235.616247][ T6426] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.617507][ T6426] CPU: 1 PID: 6426 Comm: syz.1.690 Not tainted syzkaller #0 [ 235.618687][ T6426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 235.620183][ T6426] Call trace: [ 235.620674][ T6426] dump_backtrace+0x0/0x43c [ 235.621305][ T6426] show_stack+0x2c/0x3c [ 235.621937][ T6426] __dump_stack+0x30/0x40 [ 235.622581][ T6426] dump_stack_lvl+0xf8/0x160 [ 235.623271][ T6426] dump_stack+0x1c/0x5c [ 235.623899][ T6426] sysfs_create_dir_ns+0x22c/0x24c [ 235.624591][ T6426] kobject_add_internal+0x590/0xc54 [ 235.625305][ T6426] kobject_init_and_add+0x118/0x17c [ 235.626109][ T6426] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.626764][ T6426] gfs2_fill_super+0xdac/0x19e0 [ 235.627406][ T6426] get_tree_bdev+0x358/0x544 [ 235.628016][ T6426] gfs2_get_tree+0x54/0x1b4 [ 235.628619][ T6426] vfs_get_tree+0x90/0x274 [ 235.629223][ T6426] do_new_mount+0x228/0x810 [ 235.629839][ T6426] path_mount+0x5b4/0x1000 [ 235.630476][ T6426] __arm64_sys_mount+0x514/0x5e4 [ 235.631199][ T6426] invoke_syscall+0x98/0x2b8 [ 235.631898][ T6426] el0_svc_common+0x138/0x258 [ 235.632538][ T6426] do_el0_svc+0x58/0x14c [ 235.633136][ T6426] el0_svc+0x78/0x1e0 [ 235.633688][ T6426] el0t_64_sync_handler+0xcc/0xe4 [ 235.634415][ T6426] el0t_64_sync+0x1a0/0x1a4 [ 235.635244][ T6426] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.637114][ T6426] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.768423][ T6428] loop1: detected capacity change from 0 to 32768 [ 235.775834][ T6428] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.777112][ T6428] CPU: 0 PID: 6428 Comm: syz.1.691 Not tainted syzkaller #0 [ 235.778184][ T6428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 235.779640][ T6428] Call trace: [ 235.780098][ T6428] dump_backtrace+0x0/0x43c [ 235.780726][ T6428] show_stack+0x2c/0x3c [ 235.781277][ T6428] __dump_stack+0x30/0x40 [ 235.781897][ T6428] dump_stack_lvl+0xf8/0x160 [ 235.782537][ T6428] dump_stack+0x1c/0x5c [ 235.783114][ T6428] sysfs_create_dir_ns+0x22c/0x24c [ 235.783807][ T6428] kobject_add_internal+0x590/0xc54 [ 235.784503][ T6428] kobject_init_and_add+0x118/0x17c [ 235.785232][ T6428] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.785847][ T6428] gfs2_fill_super+0xdac/0x19e0 [ 235.786518][ T6428] get_tree_bdev+0x358/0x544 [ 235.787177][ T6428] gfs2_get_tree+0x54/0x1b4 [ 235.787822][ T6428] vfs_get_tree+0x90/0x274 [ 235.788453][ T6428] do_new_mount+0x228/0x810 [ 235.789115][ T6428] path_mount+0x5b4/0x1000 [ 235.789769][ T6428] __arm64_sys_mount+0x514/0x5e4 [ 235.790486][ T6428] invoke_syscall+0x98/0x2b8 [ 235.791109][ T6428] el0_svc_common+0x138/0x258 [ 235.791714][ T6428] do_el0_svc+0x58/0x14c [ 235.792304][ T6428] el0_svc+0x78/0x1e0 [ 235.792876][ T6428] el0t_64_sync_handler+0xcc/0xe4 [ 235.793632][ T6428] el0t_64_sync+0x1a0/0x1a4 [ 235.795721][ T6428] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.797693][ T6428] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.926461][ T6430] loop1: detected capacity change from 0 to 32768 [ 235.968314][ T6430] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.969556][ T6430] CPU: 1 PID: 6430 Comm: syz.1.692 Not tainted syzkaller #0 [ 235.970629][ T6430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 235.972180][ T6430] Call trace: [ 235.972646][ T6430] dump_backtrace+0x0/0x43c [ 235.973250][ T6430] show_stack+0x2c/0x3c [ 235.973802][ T6430] __dump_stack+0x30/0x40 [ 235.974390][ T6430] dump_stack_lvl+0xf8/0x160 [ 235.975062][ T6430] dump_stack+0x1c/0x5c [ 235.975619][ T6430] sysfs_create_dir_ns+0x22c/0x24c [ 235.976319][ T6430] kobject_add_internal+0x590/0xc54 [ 235.976997][ T6430] kobject_init_and_add+0x118/0x17c [ 235.977681][ T6430] gfs2_sys_fs_add+0x1dc/0x3d8 [ 235.978316][ T6430] gfs2_fill_super+0xdac/0x19e0 [ 235.978966][ T6430] get_tree_bdev+0x358/0x544 [ 235.979626][ T6430] gfs2_get_tree+0x54/0x1b4 [ 235.980279][ T6430] vfs_get_tree+0x90/0x274 [ 235.980913][ T6430] do_new_mount+0x228/0x810 [ 235.981533][ T6430] path_mount+0x5b4/0x1000 [ 235.982129][ T6430] __arm64_sys_mount+0x514/0x5e4 [ 235.982819][ T6430] invoke_syscall+0x98/0x2b8 [ 235.983474][ T6430] el0_svc_common+0x138/0x258 [ 235.984128][ T6430] do_el0_svc+0x58/0x14c [ 235.984726][ T6430] el0_svc+0x78/0x1e0 [ 235.985304][ T6430] el0t_64_sync_handler+0xcc/0xe4 [ 235.986051][ T6430] el0t_64_sync+0x1a0/0x1a4 [ 235.988200][ T6430] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.990036][ T6430] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.124333][ T6432] loop1: detected capacity change from 0 to 32768 [ 236.198244][ T6432] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.199538][ T6432] CPU: 1 PID: 6432 Comm: syz.1.693 Not tainted syzkaller #0 [ 236.200623][ T6432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 236.202108][ T6432] Call trace: [ 236.202586][ T6432] dump_backtrace+0x0/0x43c [ 236.203230][ T6432] show_stack+0x2c/0x3c [ 236.203870][ T6432] __dump_stack+0x30/0x40 [ 236.204497][ T6432] dump_stack_lvl+0xf8/0x160 [ 236.205134][ T6432] dump_stack+0x1c/0x5c [ 236.205691][ T6432] sysfs_create_dir_ns+0x22c/0x24c [ 236.206451][ T6432] kobject_add_internal+0x590/0xc54 [ 236.207196][ T6432] kobject_init_and_add+0x118/0x17c [ 236.207974][ T6432] gfs2_sys_fs_add+0x1dc/0x3d8 [ 236.208693][ T6432] gfs2_fill_super+0xdac/0x19e0 [ 236.209425][ T6432] get_tree_bdev+0x358/0x544 [ 236.210106][ T6432] gfs2_get_tree+0x54/0x1b4 [ 236.210767][ T6432] vfs_get_tree+0x90/0x274 [ 236.211392][ T6432] do_new_mount+0x228/0x810 [ 236.212004][ T6432] path_mount+0x5b4/0x1000 [ 236.212628][ T6432] __arm64_sys_mount+0x514/0x5e4 [ 236.213351][ T6432] invoke_syscall+0x98/0x2b8 [ 236.214056][ T6432] el0_svc_common+0x138/0x258 [ 236.214722][ T6432] do_el0_svc+0x58/0x14c [ 236.215343][ T6432] el0_svc+0x78/0x1e0 [ 236.215928][ T6432] el0t_64_sync_handler+0xcc/0xe4 [ 236.216691][ T6432] el0t_64_sync+0x1a0/0x1a4 [ 236.217944][ T6432] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.220031][ T6432] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.398695][ T6434] loop1: detected capacity change from 0 to 32768 [ 236.405635][ T6434] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.406731][ T6434] CPU: 0 PID: 6434 Comm: syz.1.694 Not tainted syzkaller #0 [ 236.407859][ T6434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 236.409362][ T6434] Call trace: [ 236.409829][ T6434] dump_backtrace+0x0/0x43c [ 236.410482][ T6434] show_stack+0x2c/0x3c [ 236.411093][ T6434] __dump_stack+0x30/0x40 [ 236.411691][ T6434] dump_stack_lvl+0xf8/0x160 [ 236.412286][ T6434] dump_stack+0x1c/0x5c [ 236.412926][ T6434] sysfs_create_dir_ns+0x22c/0x24c [ 236.413680][ T6434] kobject_add_internal+0x590/0xc54 [ 236.414448][ T6434] kobject_init_and_add+0x118/0x17c [ 236.415252][ T6434] gfs2_sys_fs_add+0x1dc/0x3d8 [ 236.415909][ T6434] gfs2_fill_super+0xdac/0x19e0 [ 236.416594][ T6434] get_tree_bdev+0x358/0x544 [ 236.417235][ T6434] gfs2_get_tree+0x54/0x1b4 [ 236.417829][ T6434] vfs_get_tree+0x90/0x274 [ 236.418472][ T6434] do_new_mount+0x228/0x810 [ 236.419076][ T6434] path_mount+0x5b4/0x1000 [ 236.419676][ T6434] __arm64_sys_mount+0x514/0x5e4 [ 236.420359][ T6434] invoke_syscall+0x98/0x2b8 [ 236.421017][ T6434] el0_svc_common+0x138/0x258 [ 236.421669][ T6434] do_el0_svc+0x58/0x14c [ 236.422296][ T6434] el0_svc+0x78/0x1e0 [ 236.422881][ T6434] el0t_64_sync_handler+0xcc/0xe4 [ 236.423562][ T6434] el0t_64_sync+0x1a0/0x1a4 [ 236.425214][ T6434] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.427246][ T6434] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.553292][ T6436] loop1: detected capacity change from 0 to 32768 [ 236.588211][ T6436] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.589364][ T6436] CPU: 1 PID: 6436 Comm: syz.1.695 Not tainted syzkaller #0 [ 236.590510][ T6436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 236.592028][ T6436] Call trace: [ 236.592524][ T6436] dump_backtrace+0x0/0x43c [ 236.593210][ T6436] show_stack+0x2c/0x3c [ 236.593835][ T6436] __dump_stack+0x30/0x40 [ 236.594467][ T6436] dump_stack_lvl+0xf8/0x160 [ 236.595127][ T6436] dump_stack+0x1c/0x5c [ 236.595769][ T6436] sysfs_create_dir_ns+0x22c/0x24c [ 236.596582][ T6436] kobject_add_internal+0x590/0xc54 [ 236.597393][ T6436] kobject_init_and_add+0x118/0x17c [ 236.598153][ T6436] gfs2_sys_fs_add+0x1dc/0x3d8 [ 236.598824][ T6436] gfs2_fill_super+0xdac/0x19e0 [ 236.599519][ T6436] get_tree_bdev+0x358/0x544 [ 236.600195][ T6436] gfs2_get_tree+0x54/0x1b4 [ 236.600850][ T6436] vfs_get_tree+0x90/0x274 [ 236.601436][ T6436] do_new_mount+0x228/0x810 [ 236.602053][ T6436] path_mount+0x5b4/0x1000 [ 236.602703][ T6436] __arm64_sys_mount+0x514/0x5e4 [ 236.603346][ T6436] invoke_syscall+0x98/0x2b8 [ 236.604150][ T6436] el0_svc_common+0x138/0x258 [ 236.604837][ T6436] do_el0_svc+0x58/0x14c [ 236.605456][ T6436] el0_svc+0x78/0x1e0 [ 236.606048][ T6436] el0t_64_sync_handler+0xcc/0xe4 [ 236.606782][ T6436] el0t_64_sync+0x1a0/0x1a4 [ 236.607592][ T6436] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.609618][ T6436] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.741889][ T6438] loop1: detected capacity change from 0 to 32768 [ 236.778290][ T6438] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.779496][ T6438] CPU: 1 PID: 6438 Comm: syz.1.696 Not tainted syzkaller #0 [ 236.780598][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 236.782131][ T6438] Call trace: [ 236.782628][ T6438] dump_backtrace+0x0/0x43c [ 236.783337][ T6438] show_stack+0x2c/0x3c [ 236.783947][ T6438] __dump_stack+0x30/0x40 [ 236.784600][ T6438] dump_stack_lvl+0xf8/0x160 [ 236.785285][ T6438] dump_stack+0x1c/0x5c [ 236.785887][ T6438] sysfs_create_dir_ns+0x22c/0x24c [ 236.786606][ T6438] kobject_add_internal+0x590/0xc54 [ 236.787345][ T6438] kobject_init_and_add+0x118/0x17c [ 236.788117][ T6438] gfs2_sys_fs_add+0x1dc/0x3d8 [ 236.788783][ T6438] gfs2_fill_super+0xdac/0x19e0 [ 236.789456][ T6438] get_tree_bdev+0x358/0x544 [ 236.790107][ T6438] gfs2_get_tree+0x54/0x1b4 [ 236.790781][ T6438] vfs_get_tree+0x90/0x274 [ 236.791441][ T6438] do_new_mount+0x228/0x810 [ 236.792097][ T6438] path_mount+0x5b4/0x1000 [ 236.792688][ T6438] __arm64_sys_mount+0x514/0x5e4 [ 236.793400][ T6438] invoke_syscall+0x98/0x2b8 [ 236.794049][ T6438] el0_svc_common+0x138/0x258 [ 236.794722][ T6438] do_el0_svc+0x58/0x14c [ 236.795315][ T6438] el0_svc+0x78/0x1e0 [ 236.795912][ T6438] el0t_64_sync_handler+0xcc/0xe4 [ 236.796682][ T6438] el0t_64_sync+0x1a0/0x1a4 [ 236.797488][ T6438] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.799197][ T6438] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.928682][ T6440] loop1: detected capacity change from 0 to 32768 [ 236.935617][ T6440] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.936745][ T6440] CPU: 0 PID: 6440 Comm: syz.1.697 Not tainted syzkaller #0 [ 236.937841][ T6440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 236.939284][ T6440] Call trace: [ 236.939731][ T6440] dump_backtrace+0x0/0x43c [ 236.940395][ T6440] show_stack+0x2c/0x3c [ 236.941027][ T6440] __dump_stack+0x30/0x40 [ 236.941638][ T6440] dump_stack_lvl+0xf8/0x160 [ 236.942298][ T6440] dump_stack+0x1c/0x5c [ 236.942873][ T6440] sysfs_create_dir_ns+0x22c/0x24c [ 236.943560][ T6440] kobject_add_internal+0x590/0xc54 [ 236.944293][ T6440] kobject_init_and_add+0x118/0x17c [ 236.945017][ T6440] gfs2_sys_fs_add+0x1dc/0x3d8 [ 236.945655][ T6440] gfs2_fill_super+0xdac/0x19e0 [ 236.946379][ T6440] get_tree_bdev+0x358/0x544 [ 236.947045][ T6440] gfs2_get_tree+0x54/0x1b4 [ 236.947695][ T6440] vfs_get_tree+0x90/0x274 [ 236.948352][ T6440] do_new_mount+0x228/0x810 [ 236.949005][ T6440] path_mount+0x5b4/0x1000 [ 236.949654][ T6440] __arm64_sys_mount+0x514/0x5e4 [ 236.950380][ T6440] invoke_syscall+0x98/0x2b8 [ 236.951028][ T6440] el0_svc_common+0x138/0x258 [ 236.951728][ T6440] do_el0_svc+0x58/0x14c [ 236.952336][ T6440] el0_svc+0x78/0x1e0 [ 236.952881][ T6440] el0t_64_sync_handler+0xcc/0xe4 [ 236.953496][ T6440] el0t_64_sync+0x1a0/0x1a4 [ 236.955542][ T6440] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.957622][ T6440] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.083347][ T6442] loop1: detected capacity change from 0 to 32768 [ 237.131136][ T6442] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.132284][ T6442] CPU: 0 PID: 6442 Comm: syz.1.698 Not tainted syzkaller #0 [ 237.133293][ T6442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 237.134699][ T6442] Call trace: [ 237.135187][ T6442] dump_backtrace+0x0/0x43c [ 237.135836][ T6442] show_stack+0x2c/0x3c [ 237.136389][ T6442] __dump_stack+0x30/0x40 [ 237.136955][ T6442] dump_stack_lvl+0xf8/0x160 [ 237.137603][ T6442] dump_stack+0x1c/0x5c [ 237.138174][ T6442] sysfs_create_dir_ns+0x22c/0x24c [ 237.138910][ T6442] kobject_add_internal+0x590/0xc54 [ 237.139646][ T6442] kobject_init_and_add+0x118/0x17c [ 237.140341][ T6442] gfs2_sys_fs_add+0x1dc/0x3d8 [ 237.140968][ T6442] gfs2_fill_super+0xdac/0x19e0 [ 237.141667][ T6442] get_tree_bdev+0x358/0x544 [ 237.142322][ T6442] gfs2_get_tree+0x54/0x1b4 [ 237.142956][ T6442] vfs_get_tree+0x90/0x274 [ 237.143563][ T6442] do_new_mount+0x228/0x810 [ 237.144246][ T6442] path_mount+0x5b4/0x1000 [ 237.144877][ T6442] __arm64_sys_mount+0x514/0x5e4 [ 237.145611][ T6442] invoke_syscall+0x98/0x2b8 [ 237.146243][ T6442] el0_svc_common+0x138/0x258 [ 237.146944][ T6442] do_el0_svc+0x58/0x14c [ 237.147544][ T6442] el0_svc+0x78/0x1e0 [ 237.148157][ T6442] el0t_64_sync_handler+0xcc/0xe4 [ 237.148885][ T6442] el0t_64_sync+0x1a0/0x1a4 [ 237.150836][ T6442] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.152710][ T6442] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.279479][ T6444] loop1: detected capacity change from 0 to 32768 [ 237.319437][ T6444] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.320514][ T6444] CPU: 1 PID: 6444 Comm: syz.1.699 Not tainted syzkaller #0 [ 237.321544][ T6444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 237.323021][ T6444] Call trace: [ 237.323523][ T6444] dump_backtrace+0x0/0x43c [ 237.324270][ T6444] show_stack+0x2c/0x3c [ 237.324906][ T6444] __dump_stack+0x30/0x40 [ 237.325560][ T6444] dump_stack_lvl+0xf8/0x160 [ 237.326215][ T6444] dump_stack+0x1c/0x5c [ 237.326780][ T6444] sysfs_create_dir_ns+0x22c/0x24c [ 237.327518][ T6444] kobject_add_internal+0x590/0xc54 [ 237.328258][ T6444] kobject_init_and_add+0x118/0x17c [ 237.329045][ T6444] gfs2_sys_fs_add+0x1dc/0x3d8 [ 237.329719][ T6444] gfs2_fill_super+0xdac/0x19e0 [ 237.330417][ T6444] get_tree_bdev+0x358/0x544 [ 237.331032][ T6444] gfs2_get_tree+0x54/0x1b4 [ 237.331688][ T6444] vfs_get_tree+0x90/0x274 [ 237.332330][ T6444] do_new_mount+0x228/0x810 [ 237.332959][ T6444] path_mount+0x5b4/0x1000 [ 237.333572][ T6444] __arm64_sys_mount+0x514/0x5e4 [ 237.334287][ T6444] invoke_syscall+0x98/0x2b8 [ 237.334943][ T6444] el0_svc_common+0x138/0x258 [ 237.335600][ T6444] do_el0_svc+0x58/0x14c [ 237.336182][ T6444] el0_svc+0x78/0x1e0 [ 237.336775][ T6444] el0t_64_sync_handler+0xcc/0xe4 [ 237.337519][ T6444] el0t_64_sync+0x1a0/0x1a4 [ 237.338390][ T6444] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.340243][ T6444] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.516355][ T6446] loop1: detected capacity change from 0 to 32768 [ 237.523806][ T6446] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.524845][ T6446] CPU: 0 PID: 6446 Comm: syz.1.700 Not tainted syzkaller #0 [ 237.525898][ T6446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 237.527244][ T6446] Call trace: [ 237.527707][ T6446] dump_backtrace+0x0/0x43c [ 237.528425][ T6446] show_stack+0x2c/0x3c [ 237.529038][ T6446] __dump_stack+0x30/0x40 [ 237.529620][ T6446] dump_stack_lvl+0xf8/0x160 [ 237.530274][ T6446] dump_stack+0x1c/0x5c [ 237.530878][ T6446] sysfs_create_dir_ns+0x22c/0x24c [ 237.531630][ T6446] kobject_add_internal+0x590/0xc54 [ 237.532355][ T6446] kobject_init_and_add+0x118/0x17c [ 237.533119][ T6446] gfs2_sys_fs_add+0x1dc/0x3d8 [ 237.533804][ T6446] gfs2_fill_super+0xdac/0x19e0 [ 237.534532][ T6446] get_tree_bdev+0x358/0x544 [ 237.535291][ T6446] gfs2_get_tree+0x54/0x1b4 [ 237.535918][ T6446] vfs_get_tree+0x90/0x274 [ 237.536549][ T6446] do_new_mount+0x228/0x810 [ 237.537142][ T6446] path_mount+0x5b4/0x1000 [ 237.537772][ T6446] __arm64_sys_mount+0x514/0x5e4 [ 237.538481][ T6446] invoke_syscall+0x98/0x2b8 [ 237.539147][ T6446] el0_svc_common+0x138/0x258 [ 237.539827][ T6446] do_el0_svc+0x58/0x14c [ 237.540424][ T6446] el0_svc+0x78/0x1e0 [ 237.540986][ T6446] el0t_64_sync_handler+0xcc/0xe4 [ 237.541685][ T6446] el0t_64_sync+0x1a0/0x1a4 [ 237.543710][ T6446] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.545521][ T6446] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.676723][ T6448] loop1: detected capacity change from 0 to 32768 [ 237.684189][ T6448] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.685286][ T6448] CPU: 1 PID: 6448 Comm: syz.1.701 Not tainted syzkaller #0 [ 237.686309][ T6448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 237.687743][ T6448] Call trace: [ 237.688245][ T6448] dump_backtrace+0x0/0x43c [ 237.688866][ T6448] show_stack+0x2c/0x3c [ 237.689501][ T6448] __dump_stack+0x30/0x40 [ 237.690129][ T6448] dump_stack_lvl+0xf8/0x160 [ 237.690789][ T6448] dump_stack+0x1c/0x5c [ 237.691388][ T6448] sysfs_create_dir_ns+0x22c/0x24c [ 237.692118][ T6448] kobject_add_internal+0x590/0xc54 [ 237.692836][ T6448] kobject_init_and_add+0x118/0x17c [ 237.693593][ T6448] gfs2_sys_fs_add+0x1dc/0x3d8 [ 237.694241][ T6448] gfs2_fill_super+0xdac/0x19e0 [ 237.694928][ T6448] get_tree_bdev+0x358/0x544 [ 237.695587][ T6448] gfs2_get_tree+0x54/0x1b4 [ 237.696202][ T6448] vfs_get_tree+0x90/0x274 [ 237.696855][ T6448] do_new_mount+0x228/0x810 [ 237.697498][ T6448] path_mount+0x5b4/0x1000 [ 237.698162][ T6448] __arm64_sys_mount+0x514/0x5e4 [ 237.698858][ T6448] invoke_syscall+0x98/0x2b8 [ 237.699568][ T6448] el0_svc_common+0x138/0x258 [ 237.700244][ T6448] do_el0_svc+0x58/0x14c [ 237.700819][ T6448] el0_svc+0x78/0x1e0 [ 237.701412][ T6448] el0t_64_sync_handler+0xcc/0xe4 [ 237.702085][ T6448] el0t_64_sync+0x1a0/0x1a4 [ 237.703051][ T6448] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.704850][ T6448] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.832895][ T6450] loop1: detected capacity change from 0 to 32768 [ 237.871587][ T6450] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.872739][ T6450] CPU: 1 PID: 6450 Comm: syz.1.702 Not tainted syzkaller #0 [ 237.873806][ T6450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 237.875444][ T6450] Call trace: [ 237.875984][ T6450] dump_backtrace+0x0/0x43c [ 237.876709][ T6450] show_stack+0x2c/0x3c [ 237.877391][ T6450] __dump_stack+0x30/0x40 [ 237.878091][ T6450] dump_stack_lvl+0xf8/0x160 [ 237.878791][ T6450] dump_stack+0x1c/0x5c [ 237.879419][ T6450] sysfs_create_dir_ns+0x22c/0x24c [ 237.880208][ T6450] kobject_add_internal+0x590/0xc54 [ 237.880958][ T6450] kobject_init_and_add+0x118/0x17c [ 237.881685][ T6450] gfs2_sys_fs_add+0x1dc/0x3d8 [ 237.882408][ T6450] gfs2_fill_super+0xdac/0x19e0 [ 237.883122][ T6450] get_tree_bdev+0x358/0x544 [ 237.883760][ T6450] gfs2_get_tree+0x54/0x1b4 [ 237.884424][ T6450] vfs_get_tree+0x90/0x274 [ 237.885009][ T6450] do_new_mount+0x228/0x810 [ 237.885633][ T6450] path_mount+0x5b4/0x1000 [ 237.886328][ T6450] __arm64_sys_mount+0x514/0x5e4 [ 237.887013][ T6450] invoke_syscall+0x98/0x2b8 [ 237.887665][ T6450] el0_svc_common+0x138/0x258 [ 237.888347][ T6450] do_el0_svc+0x58/0x14c [ 237.888970][ T6450] el0_svc+0x78/0x1e0 [ 237.889604][ T6450] el0t_64_sync_handler+0xcc/0xe4 [ 237.890318][ T6450] el0t_64_sync+0x1a0/0x1a4 [ 237.891398][ T6450] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.893686][ T6450] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.927116][ T27] INFO: task kworker/1:1H:234 blocked for more than 143 seconds. [ 237.928380][ T27] Not tainted syzkaller #0 [ 237.929087][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 237.930291][ T27] task:kworker/1:1H state:D stack: 0 pid: 234 ppid: 2 flags:0x00000008 [ 237.931599][ T27] Workqueue: glock_workqueue glock_work_func [ 237.932486][ T27] Call trace: [ 237.932945][ T27] __switch_to+0x2f4/0x558 [ 237.933596][ T27] __schedule+0xe08/0x1bf8 [ 237.934201][ T27] schedule+0x11c/0x1c8 [ 237.934761][ T27] rwsem_down_write_slowpath+0xcb8/0x13f4 [ 237.935636][ T27] down_write+0xe8/0x12c [ 237.936267][ T27] freeze_super+0x54/0x374 [ 237.936944][ T27] freeze_go_sync+0x128/0x31c [ 237.940115][ T27] do_xmote+0x2ec/0xf90 [ 237.940832][ T27] run_queue+0x3fc/0x6c0 [ 237.941492][ T27] glock_work_func+0x208/0x458 [ 237.942190][ T27] process_one_work+0x79c/0x1140 [ 237.942951][ T27] worker_thread+0x8f4/0x101c [ 237.943647][ T27] kthread+0x374/0x454 [ 237.944244][ T27] ret_from_fork+0x10/0x20 [ 237.944902][ T27] INFO: task syz.0.16:5013 blocked for more than 143 seconds. [ 237.945915][ T27] Not tainted syzkaller #0 [ 237.946585][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 237.948360][ T27] task:syz.0.16 state:D stack: 0 pid: 5013 ppid: 4828 flags:0x00000009 [ 237.949712][ T27] Call trace: [ 237.950251][ T27] __switch_to+0x2f4/0x558 [ 237.950930][ T27] __schedule+0xe08/0x1bf8 [ 237.951606][ T27] schedule+0x11c/0x1c8 [ 237.952248][ T27] schedule_timeout+0xb4/0x2c8 [ 237.952949][ T27] do_wait_for_common+0x1fc/0x35c [ 237.953698][ T27] wait_for_completion+0x48/0x60 [ 237.954411][ T27] flush_workqueue+0x4b8/0x1024 [ 237.955086][ T27] gfs2_gl_hash_clear+0xd0/0x2cc [ 237.955881][ T27] gfs2_fill_super+0x111c/0x19e0 [ 237.956634][ T27] get_tree_bdev+0x358/0x544 [ 237.957942][ T27] gfs2_get_tree+0x54/0x1b4 [ 237.958608][ T27] vfs_get_tree+0x90/0x274 [ 237.959191][ T27] do_new_mount+0x228/0x810 [ 237.959847][ T27] path_mount+0x5b4/0x1000 [ 237.960552][ T27] __arm64_sys_mount+0x514/0x5e4 [ 237.961246][ T27] invoke_syscall+0x98/0x2b8 [ 237.961861][ T27] el0_svc_common+0x138/0x258 [ 237.962512][ T27] do_el0_svc+0x58/0x14c [ 237.963092][ T27] el0_svc+0x78/0x1e0 [ 237.963651][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 237.964332][ T27] el0t_64_sync+0x1a0/0x1a4 [ 237.965046][ T27] [ 237.965046][ T27] Showing all locks held in the system: [ 237.966122][ T27] 1 lock held by khungtaskd/27: [ 237.966768][ T27] #0: ffff800014361520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 237.968948][ T27] 3 locks held by kworker/1:1H/234: [ 237.969723][ T27] #0: ffff0000c549e538 ((wq_completion)glock_workqueue){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 [ 237.971452][ T27] #1: ffff80001cf77c00 ((work_completion)(&(&gl->gl_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 [ 237.973160][ T27] #2: ffff0000d86f20e0 (&type->s_umount_key#52){+.+.}-{3:3}, at: freeze_super+0x54/0x374 [ 237.974610][ T27] 2 locks held by getty/3803: [ 237.975265][ T27] #0: ffff0000d51e8098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 237.976638][ T27] #1: ffff80001bd6e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 237.978528][ T27] 1 lock held by syz.0.16/5013: [ 237.979234][ T27] #0: ffff0000d86f20e0 (&type->s_umount_key#51/1){+.+.}-{3:3}, at: alloc_super+0x1a8/0x824 [ 237.980829][ T27] 2 locks held by kworker/0:17/5025: [ 237.981569][ T27] #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 [ 237.983058][ T27] #1: ffff80001fe87c00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 [ 237.984938][ T27] 3 locks held by syz.1.703/6452: [ 237.985703][ T27] [ 237.986043][ T27] ============================================= [ 237.986043][ T27] [ 237.987567][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 237.988556][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 237.989535][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 237.990904][ T27] Call trace: [ 237.991350][ T27] dump_backtrace+0x0/0x43c [ 237.991979][ T27] show_stack+0x2c/0x3c [ 237.992596][ T27] __dump_stack+0x30/0x40 [ 237.993222][ T27] dump_stack_lvl+0xf8/0x160 [ 237.993834][ T27] dump_stack+0x1c/0x5c [ 237.994485][ T27] panic+0x2e4/0x854 [ 237.995109][ T27] hung_task_panic+0x0/0x2c [ 237.995798][ T27] kthread+0x374/0x454 [ 237.996438][ T27] ret_from_fork+0x10/0x20 [ 237.997115][ T27] SMP: stopping secondary CPUs [ 237.997805][ T27] Kernel Offset: disabled [ 237.998430][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 237.999211][ T27] Memory Limit: none [ 238.337831][ T27] Rebooting in 86400 seconds..