Warning: Permanently added '10.128.1.42' (ED25519) to the list of known hosts. 1970/01/01 00:00:32 parsed 1 programs syzkaller login: [ 33.632472][ T4325] cgroup: Unknown subsys name 'net' [ 33.933258][ T4325] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 34.224461][ T4325] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 39.988017][ T4356] chnl_net:caif_netlink_parms(): no params data found [ 40.005454][ T4356] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.006591][ T4356] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.007997][ T4356] device bridge_slave_0 entered promiscuous mode [ 40.010952][ T4356] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.012041][ T4356] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.013409][ T4356] device bridge_slave_1 entered promiscuous mode [ 40.021850][ T4356] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 40.025516][ T4356] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 40.032696][ T4356] team0: Port device team_slave_0 added [ 40.034875][ T4356] team0: Port device team_slave_1 added [ 40.040938][ T4356] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 40.042170][ T4356] 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. [ 40.046028][ T4356] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 40.048416][ T4356] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 40.049440][ T4356] 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. [ 40.053381][ T4356] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 40.081693][ T4356] device hsr_slave_0 entered promiscuous mode [ 40.120580][ T4356] device hsr_slave_1 entered promiscuous mode [ 40.215269][ T4356] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 40.252944][ T4356] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 40.301605][ T4356] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 40.342456][ T4356] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 40.411396][ T4356] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.412660][ T4356] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.414058][ T4356] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.415164][ T4356] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.431509][ T4356] 8021q: adding VLAN 0 to HW filter on device bond0 [ 40.436362][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.439094][ T1778] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.441963][ T1778] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.443797][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 40.448039][ T4356] 8021q: adding VLAN 0 to HW filter on device team0 [ 40.479054][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 40.480678][ T11] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.481817][ T11] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.483172][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 40.484536][ T11] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.485694][ T11] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.487359][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 40.488993][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 40.491675][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 40.494379][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 40.498138][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 40.501078][ T4356] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 40.554110][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 40.555439][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 40.559115][ T4356] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 40.565550][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 40.571962][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 40.573804][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 40.575144][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 40.578586][ T4356] device veth0_vlan entered promiscuous mode [ 40.582475][ T4356] device veth1_vlan entered promiscuous mode [ 40.589334][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 40.591420][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 40.592985][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 40.595356][ T4356] device veth0_macvtap entered promiscuous mode [ 40.597676][ T4356] device veth1_macvtap entered promiscuous mode [ 40.604996][ T4356] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 40.606172][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 40.608126][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 40.611156][ T4356] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 40.612695][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 40.615620][ T4356] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 40.616965][ T4356] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 40.618298][ T4356] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 40.619686][ T4356] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 41.034154][ T1606] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.035534][ T1606] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.037220][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 41.049602][ T11] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.052045][ T11] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.053780][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 41.412126][ T4418] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 41.413650][ T4418] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 41.414891][ T4418] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 41.416434][ T4418] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 41.417774][ T4418] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 41.418964][ T4418] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 1970/01/01 00:00:41 executed programs: 0 [ 41.644431][ T47] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 41.645973][ T47] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 41.647370][ T4417] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 41.648955][ T47] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 41.651221][ T47] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 41.655722][ T47] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 41.702072][ T4427] chnl_net:caif_netlink_parms(): no params data found [ 41.971812][ T4427] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.973094][ T4427] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.974646][ T4427] device bridge_slave_0 entered promiscuous mode [ 42.004930][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 42.007543][ T4427] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.008790][ T4427] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.010300][ T4427] device bridge_slave_1 entered promiscuous mode [ 42.020163][ T4427] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 42.022811][ T4427] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 42.030119][ T4427] team0: Port device team_slave_0 added [ 42.032148][ T4427] team0: Port device team_slave_1 added [ 42.037499][ T4427] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 42.038628][ T4427] 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. [ 42.042700][ T4427] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 42.045265][ T4427] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 42.046375][ T4427] 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. [ 42.050091][ T4427] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 42.091461][ T4427] device hsr_slave_0 entered promiscuous mode [ 42.150643][ T4427] device hsr_slave_1 entered promiscuous mode [ 42.190491][ T4427] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 42.191753][ T4427] Cannot create hsr debugfs directory [ 43.690988][ T4418] Bluetooth: hci0: command 0x0409 tx timeout [ 44.471798][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 45.770748][ T4418] Bluetooth: hci0: command 0x041b tx timeout [ 46.041486][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 46.162442][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 47.064638][ T4427] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 47.103324][ T4427] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 47.153300][ T4427] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 47.192900][ T4427] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 47.250911][ T4427] 8021q: adding VLAN 0 to HW filter on device bond0 [ 47.254201][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 47.255743][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 47.258138][ T4427] 8021q: adding VLAN 0 to HW filter on device team0 [ 47.261912][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 47.263487][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 47.264909][ T1606] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.266014][ T1606] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.267793][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 47.269858][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.272413][ T1606] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.273482][ T1606] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.274922][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 47.277741][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 47.281796][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 47.284418][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 47.286455][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 47.288028][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 47.292881][ T4427] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 47.294574][ T4427] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 47.296760][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 47.298506][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 47.300042][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 47.302603][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 47.304722][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 47.306188][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 47.307798][ T1606] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 47.355690][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 47.356988][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 47.360136][ T4427] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 47.366662][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 47.368212][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 47.375019][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 47.376601][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 47.378111][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 47.379509][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 47.382653][ T4427] device veth0_vlan entered promiscuous mode [ 47.386198][ T4427] device veth1_vlan entered promiscuous mode [ 47.392698][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 47.394049][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 47.395382][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 47.396842][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 47.399089][ T4427] device veth0_macvtap entered promiscuous mode [ 47.401627][ T4427] device veth1_macvtap entered promiscuous mode [ 47.405621][ T4427] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 47.407212][ T4427] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 47.409087][ T4427] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 47.410325][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 47.413310][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 47.414712][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 47.416327][ T208] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 47.418464][ T4427] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 47.420151][ T4427] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 47.422805][ T4427] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 47.424042][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 47.425624][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 47.427991][ T4427] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 47.429358][ T4427] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 47.430875][ T4427] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 47.432091][ T4427] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 47.449868][ T208] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 47.455535][ T208] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 47.456964][ T1778] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 47.457453][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 47.458324][ T1778] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 47.462043][ T1778] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 47.494516][ T4494] loop0: detected capacity change from 0 to 512 [ 47.511512][ T4494] [ 47.511954][ T4494] ====================================================== [ 47.513004][ T4494] WARNING: possible circular locking dependency detected [ 47.514056][ T4494] syzkaller #0 Not tainted [ 47.514738][ T4494] ------------------------------------------------------ [ 47.515803][ T4494] syz.0.17/4494 is trying to acquire lock: [ 47.516671][ T4494] ffff0000f2cbcb98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: ext4_writepages+0x188/0x284c [ 47.518221][ T4494] [ 47.518221][ T4494] but task is already holding lock: [ 47.519339][ T4494] ffff0000eac932f0 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x37c/0x790 [ 47.520917][ T4494] [ 47.520917][ T4494] which lock already depends on the new lock. [ 47.520917][ T4494] [ 47.522525][ T4494] [ 47.522525][ T4494] the existing dependency chain (in reverse order) is: [ 47.523850][ T4494] [ 47.523850][ T4494] -> #2 (&ei->xattr_sem){++++}-{3:3}: [ 47.525056][ T4494] down_read+0x64/0x304 [ 47.525753][ T4494] ext4_setattr+0x7c4/0x150c [ 47.526544][ T4494] notify_change+0xb0c/0xdcc [ 47.527308][ T4494] chown_common+0x414/0x574 [ 47.528108][ T4494] do_fchownat+0x158/0x268 [ 47.528828][ T4494] __arm64_sys_fchownat+0xb8/0xd4 [ 47.529635][ T4494] invoke_syscall+0x98/0x2bc [ 47.530470][ T4494] el0_svc_common+0x138/0x258 [ 47.531270][ T4494] do_el0_svc+0x58/0x13c [ 47.532056][ T4494] el0_svc+0x58/0x138 [ 47.532699][ T4494] el0t_64_sync_handler+0x84/0xf0 [ 47.533562][ T4494] el0t_64_sync+0x18c/0x190 [ 47.534314][ T4494] [ 47.534314][ T4494] -> #1 (jbd2_handle){++++}-{0:0}: [ 47.535531][ T4494] start_this_handle+0xfe0/0x122c [ 47.536342][ T4494] jbd2__journal_start+0x288/0x51c [ 47.537313][ T4494] __ext4_journal_start_sb+0x2fc/0x674 [ 47.538269][ T4494] ext4_writepages+0xa28/0x284c [ 47.539099][ T4494] do_writepages+0x2c0/0x4fc [ 47.539876][ T4494] __writeback_single_inode+0x164/0x157c [ 47.540801][ T4494] writeback_sb_inodes+0x824/0x1404 [ 47.541607][ T4494] __writeback_inodes_wb+0x110/0x394 [ 47.542457][ T4494] wb_writeback+0x414/0xfb0 [ 47.543207][ T4494] wb_workfn+0xac0/0xd98 [ 47.543875][ T4494] process_one_work+0x7f4/0x13a8 [ 47.544684][ T4494] worker_thread+0x8c8/0xfbc [ 47.545438][ T4494] kthread+0x250/0x2d8 [ 47.546140][ T4494] ret_from_fork+0x10/0x20 [ 47.546899][ T4494] [ 47.546899][ T4494] -> #0 (&sbi->s_writepages_rwsem){.+.+}-{0:0}: [ 47.548064][ T4494] __lock_acquire+0x293c/0x6544 [ 47.548835][ T4494] lock_acquire+0x20c/0x644 [ 47.549612][ T4494] percpu_down_read+0x70/0x2a8 [ 47.550437][ T4494] ext4_writepages+0x188/0x284c [ 47.551219][ T4494] do_writepages+0x2c0/0x4fc [ 47.551977][ T4494] __writeback_single_inode+0x164/0x157c [ 47.552886][ T4494] writeback_single_inode+0x1c0/0x720 [ 47.553823][ T4494] write_inode_now+0x144/0x1b0 [ 47.554700][ T4494] iput+0x5cc/0x7f4 [ 47.555392][ T4494] ext4_xattr_block_set+0x17a4/0x2810 [ 47.556287][ T4494] ext4_expand_extra_isize_ea+0xcb8/0x15cc [ 47.557260][ T4494] __ext4_expand_extra_isize+0x298/0x358 [ 47.558215][ T4494] __ext4_mark_inode_dirty+0x3e4/0x790 [ 47.559169][ T4494] ext4_evict_inode+0xb58/0x1270 [ 47.559966][ T4494] evict+0x3c8/0x810 [ 47.560694][ T4494] iput+0x764/0x7f4 [ 47.561410][ T4494] ext4_process_orphan+0x240/0x2b4 [ 47.562258][ T4494] ext4_orphan_cleanup+0x908/0x104c [ 47.563168][ T4494] ext4_fill_super+0x6440/0x68a8 [ 47.563978][ T4494] get_tree_bdev+0x358/0x544 [ 47.564821][ T4494] ext4_get_tree+0x28/0x38 [ 47.565658][ T4494] vfs_get_tree+0x90/0x274 [ 47.566497][ T4494] do_new_mount+0x228/0x810 [ 47.567389][ T4494] path_mount+0x5b4/0xe78 [ 47.568184][ T4494] __arm64_sys_mount+0x49c/0x584 [ 47.569053][ T4494] invoke_syscall+0x98/0x2bc [ 47.569769][ T4494] el0_svc_common+0x138/0x258 [ 47.570527][ T4494] do_el0_svc+0x58/0x13c [ 47.571228][ T4494] el0_svc+0x58/0x138 [ 47.571924][ T4494] el0t_64_sync_handler+0x84/0xf0 [ 47.572781][ T4494] el0t_64_sync+0x18c/0x190 [ 47.573508][ T4494] [ 47.573508][ T4494] other info that might help us debug this: [ 47.573508][ T4494] [ 47.574988][ T4494] Chain exists of: [ 47.574988][ T4494] &sbi->s_writepages_rwsem --> jbd2_handle --> &ei->xattr_sem [ 47.574988][ T4494] [ 47.577064][ T4494] Possible unsafe locking scenario: [ 47.577064][ T4494] [ 47.578174][ T4494] CPU0 CPU1 [ 47.578984][ T4494] ---- ---- [ 47.579777][ T4494] lock(&ei->xattr_sem); [ 47.580416][ T4494] lock(jbd2_handle); [ 47.581473][ T4494] lock(&ei->xattr_sem); [ 47.582570][ T4494] lock(&sbi->s_writepages_rwsem); [ 47.583363][ T4494] [ 47.583363][ T4494] *** DEADLOCK *** [ 47.583363][ T4494] [ 47.584632][ T4494] 3 locks held by syz.0.17/4494: [ 47.585376][ T4494] #0: ffff0000f2cba0e0 (&type->s_umount_key#26/1){+.+.}-{3:3}, at: alloc_super+0x1a4/0x804 [ 47.586988][ T4494] #1: ffff0000f2cba650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x3dc/0x1270 [ 47.588465][ T4494] #2: ffff0000eac932f0 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x37c/0x790 [ 47.590017][ T4494] [ 47.590017][ T4494] stack backtrace: [ 47.591012][ T4494] CPU: 0 PID: 4494 Comm: syz.0.17 Not tainted syzkaller #0 [ 47.592134][ T4494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 47.593680][ T4494] Call trace: [ 47.594228][ T4494] dump_backtrace+0x1c8/0x1f4 [ 47.595010][ T4494] show_stack+0x2c/0x3c [ 47.595581][ T4494] __dump_stack+0x30/0x40 [ 47.596244][ T4494] dump_stack_lvl+0xf8/0x160 [ 47.596922][ T4494] dump_stack+0x1c/0x5c [ 47.597521][ T4494] print_circular_bug+0x148/0x1b0 [ 47.598346][ T4494] check_noncircular+0x240/0x2d4 [ 47.599101][ T4494] __lock_acquire+0x293c/0x6544 [ 47.599851][ T4494] lock_acquire+0x20c/0x644 [ 47.600535][ T4494] percpu_down_read+0x70/0x2a8 [ 47.601294][ T4494] ext4_writepages+0x188/0x284c [ 47.601975][ T4494] do_writepages+0x2c0/0x4fc [ 47.602662][ T4494] __writeback_single_inode+0x164/0x157c [ 47.603590][ T4494] writeback_single_inode+0x1c0/0x720 [ 47.604514][ T4494] write_inode_now+0x144/0x1b0 [ 47.605236][ T4494] iput+0x5cc/0x7f4 [ 47.605820][ T4494] ext4_xattr_block_set+0x17a4/0x2810 [ 47.606621][ T4494] ext4_expand_extra_isize_ea+0xcb8/0x15cc [ 47.607476][ T4494] __ext4_expand_extra_isize+0x298/0x358 [ 47.608302][ T4494] __ext4_mark_inode_dirty+0x3e4/0x790 [ 47.609163][ T4494] ext4_evict_inode+0xb58/0x1270 [ 47.609917][ T4494] evict+0x3c8/0x810 [ 47.610543][ T4494] iput+0x764/0x7f4 [ 47.611154][ T4494] ext4_process_orphan+0x240/0x2b4 [ 47.611885][ T4494] ext4_orphan_cleanup+0x908/0x104c [ 47.612725][ T4494] ext4_fill_super+0x6440/0x68a8 [ 47.613430][ T4494] get_tree_bdev+0x358/0x544 [ 47.614136][ T4494] ext4_get_tree+0x28/0x38 [ 47.614770][ T4494] vfs_get_tree+0x90/0x274 [ 47.615387][ T4494] do_new_mount+0x228/0x810 [ 47.616067][ T4494] path_mount+0x5b4/0xe78 [ 47.616716][ T4494] __arm64_sys_mount+0x49c/0x584 [ 47.617451][ T4494] invoke_syscall+0x98/0x2bc [ 47.618144][ T4494] el0_svc_common+0x138/0x258 [ 47.618840][ T4494] do_el0_svc+0x58/0x13c [ 47.619505][ T4494] el0_svc+0x58/0x138 [ 47.620084][ T4494] el0t_64_sync_handler+0x84/0xf0 [ 47.620879][ T4494] el0t_64_sync+0x18c/0x190 [ 47.622749][ T4494] ------------[ cut here ]------------ [ 47.623667][ T4494] EA inode 11 i_nlink=2 [ 47.623733][ T4494] WARNING: CPU: 0 PID: 4494 at fs/ext4/xattr.c:1022 ext4_xattr_inode_update_ref+0x42c/0x470 [ 47.625764][ T4494] Modules linked in: [ 47.626335][ T4494] CPU: 0 PID: 4494 Comm: syz.0.17 Not tainted syzkaller #0 [ 47.627465][ T4494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 47.628937][ T4494] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.630159][ T4494] pc : ext4_xattr_inode_update_ref+0x42c/0x470 [ 47.631069][ T4494] lr : ext4_xattr_inode_update_ref+0x42c/0x470 [ 47.632022][ T4494] sp : ffff8000214d6e00 [ 47.632669][ T4494] x29: ffff8000214d6ea0 x28: 0000000000000000 x27: dfff800000000000 [ 47.633917][ T4494] x26: 1fffe0001d592a9d x25: ffff70000429adc4 x24: 0000000000000000 [ 47.635162][ T4494] x23: ffff800017a15000 x22: ffff0000eac95330 x21: 0000000000000002 [ 47.636355][ T4494] x20: 0000000000000001 x19: ffff0000eac952f0 x18: ffff800011a5bd40 [ 47.637778][ T4494] x17: 0000000000000000 x16: ffff800008042d90 x15: 0000000000000000 [ 47.639175][ T4494] x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000ff0100 [ 47.640499][ T4494] x11: ff008000081924a8 x10: 0000000000000000 x9 : d3c22f0f37c66e00 [ 47.641788][ T4494] x8 : d3c22f0f37c66e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 47.643101][ T4494] x5 : ffff8000214d6898 x4 : ffff800015134e00 x3 : ffff800008313428 [ 47.644474][ T4494] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 [ 47.645745][ T4494] Call trace: [ 47.646265][ T4494] ext4_xattr_inode_update_ref+0x42c/0x470 [ 47.647137][ T4494] ext4_xattr_set_entry+0x918/0x15ac [ 47.647949][ T4494] ext4_xattr_ibody_set+0x204/0x600 [ 47.648738][ T4494] ext4_expand_extra_isize_ea+0xd00/0x15cc [ 47.649560][ T4494] __ext4_expand_extra_isize+0x298/0x358 [ 47.650384][ T4494] __ext4_mark_inode_dirty+0x3e4/0x790 [ 47.651167][ T4494] ext4_evict_inode+0xb58/0x1270 [ 47.651880][ T4494] evict+0x3c8/0x810 [ 47.652447][ T4494] iput+0x764/0x7f4 [ 47.653029][ T4494] ext4_process_orphan+0x240/0x2b4 [ 47.653780][ T4494] ext4_orphan_cleanup+0x908/0x104c [ 47.654600][ T4494] ext4_fill_super+0x6440/0x68a8 [ 47.655376][ T4494] get_tree_bdev+0x358/0x544 [ 47.656119][ T4494] ext4_get_tree+0x28/0x38 [ 47.656776][ T4494] vfs_get_tree+0x90/0x274 [ 47.657480][ T4494] do_new_mount+0x228/0x810 [ 47.658214][ T4494] path_mount+0x5b4/0xe78 [ 47.658825][ T4494] __arm64_sys_mount+0x49c/0x584 [ 47.659583][ T4494] invoke_syscall+0x98/0x2bc [ 47.660267][ T4494] el0_svc_common+0x138/0x258 [ 47.660916][ T4494] do_el0_svc+0x58/0x13c [ 47.661571][ T4494] el0_svc+0x58/0x138 [ 47.662200][ T4494] el0t_64_sync_handler+0x84/0xf0 [ 47.662951][ T4494] el0t_64_sync+0x18c/0x190 [ 47.663595][ T4494] irq event stamp: 4451 [ 47.664178][ T4494] hardirqs last enabled at (4451): [] _raw_spin_unlock_irqrestore+0x48/0xac [ 47.665698][ T4494] hardirqs last disabled at (4450): [] _raw_spin_lock_irqsave+0xa4/0xb4 [ 47.667153][ T4494] softirqs last enabled at (4374): [] handle_softirqs+0xaf8/0xc6c [ 47.668591][ T4494] softirqs last disabled at (4351): [] __do_softirq+0x14/0x20 [ 47.669927][ T4494] ---[ end trace 0000000000000000 ]--- [ 47.671163][ T4494] EXT4-fs (loop0): 1 orphan inode deleted [ 47.672075][ T4494] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none. [ 47.675849][ T4427] EXT4-fs (loop0): unmounting filesystem.